Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
[PATCH] get rid of __exit_files(), __exit_fs() and __put_fs_struct()
[PATCH] proc_readfd_common() race fix
[PATCH] double-free of inode on alloc_file() failure exit in create_write_pipe()
[PATCH] teach seq_file to discard entries
[PATCH] umount_tree() will unhash everything itself
[PATCH] get rid of more nameidata passing in namespace.c
[PATCH] switch a bunch of LSM hooks from nameidata to path
[PATCH] lock exclusively in collect_mounts() and drop_collected_mounts()
[PATCH] move a bunch of declarations to fs/internal.h
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index ed21737..cd13e13 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -266,17 +266,6 @@
depends on !IA64_HP_SIM
default y
-config IA64_SGI_SN_XP
- tristate "Support communication between SGI SSIs"
- depends on IA64_GENERIC || IA64_SGI_SN2
- select IA64_UNCACHED_ALLOCATOR
- help
- An SGI machine can be divided into multiple Single System
- Images which act independently of each other and have
- hardware based memory protection from the others. Enabling
- this feature will allow for direct communication between SSIs
- based on a network adapter and DMA messaging.
-
config FORCE_MAX_ZONEORDER
int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE
range 11 17 if !HUGETLB_PAGE
diff --git a/arch/ia64/kernel/crash.c b/arch/ia64/kernel/crash.c
index 90ef338..f065093 100644
--- a/arch/ia64/kernel/crash.c
+++ b/arch/ia64/kernel/crash.c
@@ -194,8 +194,8 @@
unw_init_running(kdump_cpu_freeze, NULL);
break;
case DIE_MCA_MONARCH_LEAVE:
- /* die_register->signr indicate if MCA is recoverable */
- if (kdump_on_fatal_mca && !args->signr) {
+ /* *(nd->data) indicate if MCA is recoverable */
+ if (kdump_on_fatal_mca && !(*(nd->data))) {
atomic_set(&kdump_in_progress, 1);
*(nd->monarch_cpu) = -1;
machine_kdump_on_init();
diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S
index b0be4a2..e49ad8c 100644
--- a/arch/ia64/kernel/entry.S
+++ b/arch/ia64/kernel/entry.S
@@ -570,6 +570,7 @@
br.call.sptk.many rp=syscall_trace_leave // give parent a chance to catch return value
.ret3:
(pUStk) cmp.eq.unc p6,p0=r0,r0 // p6 <- pUStk
+(pUStk) rsm psr.i // disable interrupts
br.cond.sptk .work_pending_syscall_end
strace_error:
diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index e51bced..705176b 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -109,6 +109,20 @@
# define IA64_MCA_DEBUG(fmt...)
#endif
+#define NOTIFY_INIT(event, regs, arg, spin) \
+do { \
+ if ((notify_die((event), "INIT", (regs), (arg), 0, 0) \
+ == NOTIFY_STOP) && ((spin) == 1)) \
+ ia64_mca_spin(__func__); \
+} while (0)
+
+#define NOTIFY_MCA(event, regs, arg, spin) \
+do { \
+ if ((notify_die((event), "MCA", (regs), (arg), 0, 0) \
+ == NOTIFY_STOP) && ((spin) == 1)) \
+ ia64_mca_spin(__func__); \
+} while (0)
+
/* Used by mca_asm.S */
DEFINE_PER_CPU(u64, ia64_mca_data); /* == __per_cpu_mca[smp_processor_id()] */
DEFINE_PER_CPU(u64, ia64_mca_per_cpu_pte); /* PTE to map per-CPU area */
@@ -766,9 +780,8 @@
/* Mask all interrupts */
local_irq_save(flags);
- if (notify_die(DIE_MCA_RENDZVOUS_ENTER, "MCA", get_irq_regs(),
- (long)&nd, 0, 0) == NOTIFY_STOP)
- ia64_mca_spin(__func__);
+
+ NOTIFY_MCA(DIE_MCA_RENDZVOUS_ENTER, get_irq_regs(), (long)&nd, 1);
ia64_mc_info.imi_rendez_checkin[cpu] = IA64_MCA_RENDEZ_CHECKIN_DONE;
/* Register with the SAL monarch that the slave has
@@ -776,17 +789,13 @@
*/
ia64_sal_mc_rendez();
- if (notify_die(DIE_MCA_RENDZVOUS_PROCESS, "MCA", get_irq_regs(),
- (long)&nd, 0, 0) == NOTIFY_STOP)
- ia64_mca_spin(__func__);
+ NOTIFY_MCA(DIE_MCA_RENDZVOUS_PROCESS, get_irq_regs(), (long)&nd, 1);
/* Wait for the monarch cpu to exit. */
while (monarch_cpu != -1)
cpu_relax(); /* spin until monarch leaves */
- if (notify_die(DIE_MCA_RENDZVOUS_LEAVE, "MCA", get_irq_regs(),
- (long)&nd, 0, 0) == NOTIFY_STOP)
- ia64_mca_spin(__func__);
+ NOTIFY_MCA(DIE_MCA_RENDZVOUS_LEAVE, get_irq_regs(), (long)&nd, 1);
ia64_mc_info.imi_rendez_checkin[cpu] = IA64_MCA_RENDEZ_CHECKIN_NOTDONE;
/* Enable all interrupts */
@@ -1256,7 +1265,7 @@
int recover, cpu = smp_processor_id();
struct task_struct *previous_current;
struct ia64_mca_notify_die nd =
- { .sos = sos, .monarch_cpu = &monarch_cpu };
+ { .sos = sos, .monarch_cpu = &monarch_cpu, .data = &recover };
static atomic_t mca_count;
static cpumask_t mca_cpu;
@@ -1272,9 +1281,7 @@
previous_current = ia64_mca_modify_original_stack(regs, sw, sos, "MCA");
- if (notify_die(DIE_MCA_MONARCH_ENTER, "MCA", regs, (long)&nd, 0, 0)
- == NOTIFY_STOP)
- ia64_mca_spin(__func__);
+ NOTIFY_MCA(DIE_MCA_MONARCH_ENTER, regs, (long)&nd, 1);
ia64_mc_info.imi_rendez_checkin[cpu] = IA64_MCA_RENDEZ_CHECKIN_CONCURRENT_MCA;
if (sos->monarch) {
@@ -1288,13 +1295,12 @@
* does not work.
*/
ia64_mca_wakeup_all();
- if (notify_die(DIE_MCA_MONARCH_PROCESS, "MCA", regs, (long)&nd, 0, 0)
- == NOTIFY_STOP)
- ia64_mca_spin(__func__);
} else {
while (cpu_isset(cpu, mca_cpu))
cpu_relax(); /* spin until monarch wakes us */
- }
+ }
+
+ NOTIFY_MCA(DIE_MCA_MONARCH_PROCESS, regs, (long)&nd, 1);
/* Get the MCA error record and log it */
ia64_mca_log_sal_error_record(SAL_INFO_TYPE_MCA);
@@ -1320,9 +1326,7 @@
mca_insert_tr(0x2); /*Reload dynamic itrs*/
}
- if (notify_die(DIE_MCA_MONARCH_LEAVE, "MCA", regs, (long)&nd, 0, recover)
- == NOTIFY_STOP)
- ia64_mca_spin(__func__);
+ NOTIFY_MCA(DIE_MCA_MONARCH_LEAVE, regs, (long)&nd, 1);
if (atomic_dec_return(&mca_count) > 0) {
int i;
@@ -1643,7 +1647,7 @@
struct ia64_mca_notify_die nd =
{ .sos = sos, .monarch_cpu = &monarch_cpu };
- (void) notify_die(DIE_INIT_ENTER, "INIT", regs, (long)&nd, 0, 0);
+ NOTIFY_INIT(DIE_INIT_ENTER, regs, (long)&nd, 0);
mprintk(KERN_INFO "Entered OS INIT handler. PSP=%lx cpu=%d monarch=%ld\n",
sos->proc_state_param, cpu, sos->monarch);
@@ -1680,17 +1684,15 @@
ia64_mc_info.imi_rendez_checkin[cpu] = IA64_MCA_RENDEZ_CHECKIN_INIT;
while (monarch_cpu == -1)
cpu_relax(); /* spin until monarch enters */
- if (notify_die(DIE_INIT_SLAVE_ENTER, "INIT", regs, (long)&nd, 0, 0)
- == NOTIFY_STOP)
- ia64_mca_spin(__func__);
- if (notify_die(DIE_INIT_SLAVE_PROCESS, "INIT", regs, (long)&nd, 0, 0)
- == NOTIFY_STOP)
- ia64_mca_spin(__func__);
+
+ NOTIFY_INIT(DIE_INIT_SLAVE_ENTER, regs, (long)&nd, 1);
+ NOTIFY_INIT(DIE_INIT_SLAVE_PROCESS, regs, (long)&nd, 1);
+
while (monarch_cpu != -1)
cpu_relax(); /* spin until monarch leaves */
- if (notify_die(DIE_INIT_SLAVE_LEAVE, "INIT", regs, (long)&nd, 0, 0)
- == NOTIFY_STOP)
- ia64_mca_spin(__func__);
+
+ NOTIFY_INIT(DIE_INIT_SLAVE_LEAVE, regs, (long)&nd, 1);
+
mprintk("Slave on cpu %d returning to normal service.\n", cpu);
set_curr_task(cpu, previous_current);
ia64_mc_info.imi_rendez_checkin[cpu] = IA64_MCA_RENDEZ_CHECKIN_NOTDONE;
@@ -1699,9 +1701,7 @@
}
monarch_cpu = cpu;
- if (notify_die(DIE_INIT_MONARCH_ENTER, "INIT", regs, (long)&nd, 0, 0)
- == NOTIFY_STOP)
- ia64_mca_spin(__func__);
+ NOTIFY_INIT(DIE_INIT_MONARCH_ENTER, regs, (long)&nd, 1);
/*
* Wait for a bit. On some machines (e.g., HP's zx2000 and zx6000, INIT can be
@@ -1716,12 +1716,9 @@
* to default_monarch_init_process() above and just print all the
* tasks.
*/
- if (notify_die(DIE_INIT_MONARCH_PROCESS, "INIT", regs, (long)&nd, 0, 0)
- == NOTIFY_STOP)
- ia64_mca_spin(__func__);
- if (notify_die(DIE_INIT_MONARCH_LEAVE, "INIT", regs, (long)&nd, 0, 0)
- == NOTIFY_STOP)
- ia64_mca_spin(__func__);
+ NOTIFY_INIT(DIE_INIT_MONARCH_PROCESS, regs, (long)&nd, 1);
+ NOTIFY_INIT(DIE_INIT_MONARCH_LEAVE, regs, (long)&nd, 1);
+
mprintk("\nINIT dump complete. Monarch on cpu %d returning to normal service.\n", cpu);
atomic_dec(&monarchs);
set_curr_task(cpu, previous_current);
@@ -1953,7 +1950,7 @@
printk(KERN_INFO "Increasing MCA rendezvous timeout from "
"%ld to %ld milliseconds\n", timeout, isrv.v0);
timeout = isrv.v0;
- (void) notify_die(DIE_MCA_NEW_TIMEOUT, "MCA", NULL, timeout, 0, 0);
+ NOTIFY_MCA(DIE_MCA_NEW_TIMEOUT, NULL, timeout, 0);
continue;
}
printk(KERN_ERR "Failed to register rendezvous interrupt "
diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index d1d24f4..c8e4037 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -5511,7 +5511,7 @@
}
static int
-pfm_do_interrupt_handler(int irq, void *arg, struct pt_regs *regs)
+pfm_do_interrupt_handler(void *arg, struct pt_regs *regs)
{
struct task_struct *task;
pfm_context_t *ctx;
@@ -5591,7 +5591,7 @@
start_cycles = ia64_get_itc();
- ret = pfm_do_interrupt_handler(irq, arg, regs);
+ ret = pfm_do_interrupt_handler(arg, regs);
total_cycles = ia64_get_itc();
diff --git a/arch/ia64/sn/kernel/Makefile b/arch/ia64/sn/kernel/Makefile
index 688a3c27..0591038 100644
--- a/arch/ia64/sn/kernel/Makefile
+++ b/arch/ia64/sn/kernel/Makefile
@@ -4,7 +4,7 @@
# License. See the file "COPYING" in the main directory of this archive
# for more details.
#
-# Copyright (C) 1999,2001-2006 Silicon Graphics, Inc. All Rights Reserved.
+# Copyright (C) 1999,2001-2006,2008 Silicon Graphics, Inc. All Rights Reserved.
#
EXTRA_CFLAGS += -Iarch/ia64/sn/include
@@ -15,9 +15,4 @@
sn2/
obj-$(CONFIG_IA64_GENERIC) += machvec.o
obj-$(CONFIG_SGI_TIOCX) += tiocx.o
-obj-$(CONFIG_IA64_SGI_SN_XP) += xp.o
-xp-y := xp_main.o xp_nofault.o
-obj-$(CONFIG_IA64_SGI_SN_XP) += xpc.o
-xpc-y := xpc_main.o xpc_channel.o xpc_partition.o
-obj-$(CONFIG_IA64_SGI_SN_XP) += xpnet.o
obj-$(CONFIG_PCI_MSI) += msi_sn.o
diff --git a/arch/ia64/sn/kernel/huberror.c b/arch/ia64/sn/kernel/huberror.c
index 0101c79..08b0d9b 100644
--- a/arch/ia64/sn/kernel/huberror.c
+++ b/arch/ia64/sn/kernel/huberror.c
@@ -187,8 +187,8 @@
{
if (request_irq(SGI_II_ERROR, hub_eint_handler, IRQF_SHARED,
- "SN_hub_error", (void *)hubdev_info)) {
- printk("hub_error_init: Failed to request_irq for 0x%p\n",
+ "SN_hub_error", hubdev_info)) {
+ printk(KERN_ERR "hub_error_init: Failed to request_irq for 0x%p\n",
hubdev_info);
return;
}
diff --git a/arch/ia64/sn/pci/tioce_provider.c b/arch/ia64/sn/pci/tioce_provider.c
index 9b3c113..94e5845 100644
--- a/arch/ia64/sn/pci/tioce_provider.c
+++ b/arch/ia64/sn/pci/tioce_provider.c
@@ -655,7 +655,8 @@
*
* Simply call tioce_do_dma_map() to create a map with the barrier bit set
* in the address.
- */ static u64
+ */
+static u64
tioce_dma_consistent(struct pci_dev *pdev, u64 paddr, size_t byte_count, int dma_flags)
{
return tioce_do_dma_map(pdev, paddr, byte_count, 1, dma_flags);
@@ -668,7 +669,8 @@
*
* Handle a CE error interrupt. Simply a wrapper around a SAL call which
* defers processing to the SGI prom.
- */ static irqreturn_t
+ */
+static irqreturn_t
tioce_error_intr_handler(int irq, void *arg)
{
struct tioce_common *soft = arg;
diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index be1cc51..ef522ae 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -530,7 +530,8 @@
sysfs_remove_link(&dev->bus->p->devices_kset->kobj,
dev->bus_id);
device_remove_attrs(dev->bus, dev);
- klist_del(&dev->knode_bus);
+ if (klist_node_attached(&dev->knode_bus))
+ klist_del(&dev->knode_bus);
pr_debug("bus: '%s': remove device %s\n",
dev->bus->name, dev->bus_id);
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index c4568b8..7b76fd3 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -62,7 +62,7 @@
*/
int device_pm_add(struct device *dev)
{
- int error = 0;
+ int error;
pr_debug("PM: Adding info for %s:%s\n",
dev->bus ? dev->bus->name : "No Bus",
@@ -70,18 +70,15 @@
mutex_lock(&dpm_list_mtx);
if ((dev->parent && dev->parent->power.sleeping) || all_sleeping) {
if (dev->parent->power.sleeping)
- dev_warn(dev,
- "parent %s is sleeping, will not add\n",
+ dev_warn(dev, "parent %s is sleeping\n",
dev->parent->bus_id);
else
- dev_warn(dev, "devices are sleeping, will not add\n");
+ dev_warn(dev, "all devices are sleeping\n");
WARN_ON(true);
- error = -EBUSY;
- } else {
- error = dpm_sysfs_add(dev);
- if (!error)
- list_add_tail(&dev->power.entry, &dpm_active);
}
+ error = dpm_sysfs_add(dev);
+ if (!error)
+ list_add_tail(&dev->power.entry, &dpm_active);
mutex_unlock(&dpm_list_mtx);
return error;
}
diff --git a/drivers/block/brd.c b/drivers/block/brd.c
index 8536480..7bd7663 100644
--- a/drivers/block/brd.c
+++ b/drivers/block/brd.c
@@ -108,7 +108,7 @@
#ifndef CONFIG_BLK_DEV_XIP
gfp_flags |= __GFP_HIGHMEM;
#endif
- page = alloc_page(GFP_NOIO | __GFP_HIGHMEM | __GFP_ZERO);
+ page = alloc_page(gfp_flags);
if (!page)
return NULL;
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index f0b00ec..e03c67d 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -44,8 +44,8 @@
#ifdef CONFIG_HID_DEBUG
int hid_debug = 0;
-module_param_named(debug, hid_debug, bool, 0600);
-MODULE_PARM_DESC(debug, "Turn HID debugging mode on and off");
+module_param_named(debug, hid_debug, int, 0600);
+MODULE_PARM_DESC(debug, "HID debugging (0=off, 1=probing info, 2=continuous data dumping)");
EXPORT_SYMBOL_GPL(hid_debug);
#endif
@@ -97,7 +97,7 @@
field->index = report->maxfield++;
report->field[field->index] = field;
field->usage = (struct hid_usage *)(field + 1);
- field->value = (unsigned *)(field->usage + usages);
+ field->value = (s32 *)(field->usage + usages);
field->report = report;
return field;
@@ -830,7 +830,8 @@
* reporting to the layer).
*/
-void hid_input_field(struct hid_device *hid, struct hid_field *field, __u8 *data, int interrupt)
+static void hid_input_field(struct hid_device *hid, struct hid_field *field,
+ __u8 *data, int interrupt)
{
unsigned n;
unsigned count = field->report_count;
@@ -876,7 +877,6 @@
exit:
kfree(value);
}
-EXPORT_SYMBOL_GPL(hid_input_field);
/*
* Output the field into the report.
@@ -988,8 +988,13 @@
if ((hid->claimed & HID_CLAIMED_HIDDEV) && hid->hiddev_report_event)
hid->hiddev_report_event(hid, report);
- if (hid->claimed & HID_CLAIMED_HIDRAW)
- hidraw_report_event(hid, data, size);
+ if (hid->claimed & HID_CLAIMED_HIDRAW) {
+ /* numbered reports need to be passed with the report num */
+ if (report_enum->numbered)
+ hidraw_report_event(hid, data - 1, size + 1);
+ else
+ hidraw_report_event(hid, data, size);
+ }
for (n = 0; n < report->maxfield; n++)
hid_input_field(hid, report->field[n], data, interrupt);
diff --git a/drivers/hid/hid-debug.c b/drivers/hid/hid-debug.c
index 5c24fe4..f88714b 100644
--- a/drivers/hid/hid-debug.c
+++ b/drivers/hid/hid-debug.c
@@ -498,7 +498,7 @@
EXPORT_SYMBOL_GPL(hid_dump_device);
void hid_dump_input(struct hid_usage *usage, __s32 value) {
- if (!hid_debug)
+ if (hid_debug < 2)
return;
printk(KERN_DEBUG "hid-debug: input ");
diff --git a/drivers/hid/hid-input-quirks.c b/drivers/hid/hid-input-quirks.c
index dceadd0..4c2052c 100644
--- a/drivers/hid/hid-input-quirks.c
+++ b/drivers/hid/hid-input-quirks.c
@@ -276,6 +276,21 @@
return 1;
}
+static int quirk_sunplus_wdesktop(struct hid_usage *usage, struct input_dev *input,
+ unsigned long **bit, int *max)
+{
+ if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER)
+ return 0;
+
+ switch (usage->hid & HID_USAGE) {
+ case 0x2003: map_key_clear(KEY_ZOOMIN); break;
+ case 0x2103: map_key_clear(KEY_ZOOMOUT); break;
+ default:
+ return 0;
+ }
+ return 1;
+}
+
#define VENDOR_ID_BELKIN 0x1020
#define DEVICE_ID_BELKIN_WIRELESS_KEYBOARD 0x0006
@@ -306,6 +321,9 @@
#define VENDOR_ID_PETALYNX 0x18b1
#define DEVICE_ID_PETALYNX_MAXTER_REMOTE 0x0037
+#define VENDOR_ID_SUNPLUS 0x04fc
+#define DEVICE_ID_SUNPLUS_WDESKTOP 0x05d8
+
static const struct hid_input_blacklist {
__u16 idVendor;
__u16 idProduct;
@@ -332,8 +350,10 @@
{ VENDOR_ID_MONTEREY, DEVICE_ID_GENIUS_KB29E, quirk_cherry_genius_29e },
{ VENDOR_ID_PETALYNX, DEVICE_ID_PETALYNX_MAXTER_REMOTE, quirk_petalynx_remote },
-
- { 0, 0, 0 }
+
+ { VENDOR_ID_SUNPLUS, DEVICE_ID_SUNPLUS_WDESKTOP, quirk_sunplus_wdesktop },
+
+ { 0, 0, NULL }
};
int hidinput_mapping_quirks(struct hid_usage *usage,
diff --git a/drivers/hid/usbhid/Kconfig b/drivers/hid/usbhid/Kconfig
index 7160fa6..18f0910 100644
--- a/drivers/hid/usbhid/Kconfig
+++ b/drivers/hid/usbhid/Kconfig
@@ -71,6 +71,14 @@
Note: if you say N here, this device will still be supported, but without
force feedback.
+config LOGIRUMBLEPAD2_FF
+ bool "Logitech Rumblepad 2 support"
+ depends on HID_FF
+ select INPUT_FF_MEMLESS if USB_HID
+ help
+ Say Y here if you want to enable force feedback support for Logitech
+ Rumblepad 2 devices.
+
config PANTHERLORD_FF
bool "PantherLord/GreenAsia based device support"
depends on HID_FF
@@ -80,8 +88,8 @@
or adapter and want to enable force feedback support for it.
config THRUSTMASTER_FF
- bool "ThrustMaster devices support (EXPERIMENTAL)"
- depends on HID_FF && EXPERIMENTAL
+ bool "ThrustMaster devices support"
+ depends on HID_FF
select INPUT_FF_MEMLESS if USB_HID
help
Say Y here if you have a THRUSTMASTER FireStore Dual Power 2 or
diff --git a/drivers/hid/usbhid/Makefile b/drivers/hid/usbhid/Makefile
index 8e6ab5b..00a7b70 100644
--- a/drivers/hid/usbhid/Makefile
+++ b/drivers/hid/usbhid/Makefile
@@ -16,6 +16,9 @@
ifeq ($(CONFIG_LOGITECH_FF),y)
usbhid-objs += hid-lgff.o
endif
+ifeq ($(CONFIG_LOGIRUMBLEPAD2_FF),y)
+ usbhid-objs += hid-lg2ff.o
+endif
ifeq ($(CONFIG_PANTHERLORD_FF),y)
usbhid-objs += hid-plff.o
endif
diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index d95979f..e0d805f 100644
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -82,6 +82,7 @@
spin_lock_irqsave(&usbhid->inlock, flags);
if (hid->open > 0 && !test_bit(HID_SUSPENDED, &usbhid->iofl) &&
+ !test_bit(HID_DISCONNECTED, &usbhid->iofl) &&
!test_and_set_bit(HID_IN_RUNNING, &usbhid->iofl)) {
rc = usb_submit_urb(usbhid->urbin, GFP_ATOMIC);
if (rc != 0)
@@ -155,7 +156,7 @@
spin_lock_irqsave(&usbhid->inlock, flags);
/* Stop when disconnected */
- if (usb_get_intfdata(usbhid->intf) == NULL)
+ if (test_bit(HID_DISCONNECTED, &usbhid->iofl))
goto done;
/* If it has been a while since the last error, we'll assume
@@ -341,7 +342,7 @@
if (usbhid->outhead != usbhid->outtail) {
if (hid_submit_out(hid)) {
clear_bit(HID_OUT_RUNNING, &usbhid->iofl);
- wake_up(&hid->wait);
+ wake_up(&usbhid->wait);
}
spin_unlock_irqrestore(&usbhid->outlock, flags);
return;
@@ -349,7 +350,7 @@
clear_bit(HID_OUT_RUNNING, &usbhid->iofl);
spin_unlock_irqrestore(&usbhid->outlock, flags);
- wake_up(&hid->wait);
+ wake_up(&usbhid->wait);
}
/*
@@ -391,7 +392,7 @@
if (usbhid->ctrlhead != usbhid->ctrltail) {
if (hid_submit_ctrl(hid)) {
clear_bit(HID_CTRL_RUNNING, &usbhid->iofl);
- wake_up(&hid->wait);
+ wake_up(&usbhid->wait);
}
spin_unlock_irqrestore(&usbhid->ctrllock, flags);
return;
@@ -399,7 +400,7 @@
clear_bit(HID_CTRL_RUNNING, &usbhid->iofl);
spin_unlock_irqrestore(&usbhid->ctrllock, flags);
- wake_up(&hid->wait);
+ wake_up(&usbhid->wait);
}
void usbhid_submit_report(struct hid_device *hid, struct hid_report *report, unsigned char dir)
@@ -478,8 +479,9 @@
{
struct usbhid_device *usbhid = hid->driver_data;
- if (!wait_event_timeout(hid->wait, (!test_bit(HID_CTRL_RUNNING, &usbhid->iofl) &&
- !test_bit(HID_OUT_RUNNING, &usbhid->iofl)),
+ if (!wait_event_timeout(usbhid->wait,
+ (!test_bit(HID_CTRL_RUNNING, &usbhid->iofl) &&
+ !test_bit(HID_OUT_RUNNING, &usbhid->iofl)),
10*HZ)) {
dbg_hid("timeout waiting for ctrl or out queue to clear\n");
return -1;
@@ -610,10 +612,11 @@
/*
* Traverse the supplied list of reports and find the longest
*/
-static void hid_find_max_report(struct hid_device *hid, unsigned int type, int *max)
+static void hid_find_max_report(struct hid_device *hid, unsigned int type,
+ unsigned int *max)
{
struct hid_report *report;
- int size;
+ unsigned int size;
list_for_each_entry(report, &hid->report_enum[type].report_list, list) {
size = ((report->size - 1) >> 3) + 1;
@@ -705,9 +708,9 @@
struct hid_descriptor *hdesc;
struct hid_device *hid;
u32 quirks = 0;
- unsigned rsize = 0;
+ unsigned int insize = 0, rsize = 0;
char *rdesc;
- int n, len, insize = 0;
+ int n, len;
struct usbhid_device *usbhid;
quirks = usbhid_lookup_quirk(le16_to_cpu(dev->descriptor.idVendor),
@@ -800,6 +803,22 @@
goto fail;
}
+ hid->name[0] = 0;
+
+ if (dev->manufacturer)
+ strlcpy(hid->name, dev->manufacturer, sizeof(hid->name));
+
+ if (dev->product) {
+ if (dev->manufacturer)
+ strlcat(hid->name, " ", sizeof(hid->name));
+ strlcat(hid->name, dev->product, sizeof(hid->name));
+ }
+
+ if (!strlen(hid->name))
+ snprintf(hid->name, sizeof(hid->name), "HID %04x:%04x",
+ le16_to_cpu(dev->descriptor.idVendor),
+ le16_to_cpu(dev->descriptor.idProduct));
+
for (n = 0; n < interface->desc.bNumEndpoints; n++) {
struct usb_endpoint_descriptor *endpoint;
@@ -812,6 +831,14 @@
interval = endpoint->bInterval;
+ /* Some vendors give fullspeed interval on highspeed devides */
+ if (quirks & HID_QUIRK_FULLSPEED_INTERVAL &&
+ dev->speed == USB_SPEED_HIGH) {
+ interval = fls(endpoint->bInterval*8);
+ printk(KERN_INFO "%s: Fixing fullspeed to highspeed interval: %d -> %d\n",
+ hid->name, endpoint->bInterval, interval);
+ }
+
/* Change the polling interval of mice. */
if (hid->collection->usage == HID_GD_MOUSE && hid_mousepoll_interval > 0)
interval = hid_mousepoll_interval;
@@ -844,8 +871,7 @@
goto fail;
}
- init_waitqueue_head(&hid->wait);
-
+ init_waitqueue_head(&usbhid->wait);
INIT_WORK(&usbhid->reset_work, hid_reset);
setup_timer(&usbhid->io_retry, hid_retry_timeout, (unsigned long) hid);
@@ -859,22 +885,6 @@
usbhid->intf = intf;
usbhid->ifnum = interface->desc.bInterfaceNumber;
- hid->name[0] = 0;
-
- if (dev->manufacturer)
- strlcpy(hid->name, dev->manufacturer, sizeof(hid->name));
-
- if (dev->product) {
- if (dev->manufacturer)
- strlcat(hid->name, " ", sizeof(hid->name));
- strlcat(hid->name, dev->product, sizeof(hid->name));
- }
-
- if (!strlen(hid->name))
- snprintf(hid->name, sizeof(hid->name), "HID %04x:%04x",
- le16_to_cpu(dev->descriptor.idVendor),
- le16_to_cpu(dev->descriptor.idProduct));
-
hid->bus = BUS_USB;
hid->vendor = le16_to_cpu(dev->descriptor.idVendor);
hid->product = le16_to_cpu(dev->descriptor.idProduct);
@@ -932,6 +942,7 @@
spin_lock_irq(&usbhid->inlock); /* Sync with error handler */
usb_set_intfdata(intf, NULL);
+ set_bit(HID_DISCONNECTED, &usbhid->iofl);
spin_unlock_irq(&usbhid->inlock);
usb_kill_urb(usbhid->urbin);
usb_kill_urb(usbhid->urbout);
diff --git a/drivers/hid/usbhid/hid-ff.c b/drivers/hid/usbhid/hid-ff.c
index 4c210e1..1d0dac5 100644
--- a/drivers/hid/usbhid/hid-ff.c
+++ b/drivers/hid/usbhid/hid-ff.c
@@ -59,6 +59,9 @@
{ 0x46d, 0xc295, hid_lgff_init }, /* Logitech MOMO force wheel */
{ 0x46d, 0xca03, hid_lgff_init }, /* Logitech MOMO force wheel */
#endif
+#ifdef CONFIG_LOGIRUMBLEPAD2_FF
+ { 0x46d, 0xc218, hid_lg2ff_init }, /* Logitech Rumblepad 2 */
+#endif
#ifdef CONFIG_PANTHERLORD_FF
{ 0x810, 0x0001, hid_plff_init }, /* "Twin USB Joystick" */
{ 0xe8f, 0x0003, hid_plff_init }, /* "GreenAsia Inc. USB Joystick " */
diff --git a/drivers/hid/usbhid/hid-lg2ff.c b/drivers/hid/usbhid/hid-lg2ff.c
new file mode 100644
index 0000000..d469bd0
--- /dev/null
+++ b/drivers/hid/usbhid/hid-lg2ff.c
@@ -0,0 +1,114 @@
+/*
+ * Force feedback support for Logitech Rumblepad 2
+ *
+ * Copyright (c) 2008 Anssi Hannula <anssi.hannula@gmail.com>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+
+#include <linux/input.h>
+#include <linux/usb.h>
+#include <linux/hid.h>
+#include "usbhid.h"
+
+struct lg2ff_device {
+ struct hid_report *report;
+};
+
+static int play_effect(struct input_dev *dev, void *data,
+ struct ff_effect *effect)
+{
+ struct hid_device *hid = input_get_drvdata(dev);
+ struct lg2ff_device *lg2ff = data;
+ int weak, strong;
+
+ strong = effect->u.rumble.strong_magnitude;
+ weak = effect->u.rumble.weak_magnitude;
+
+ if (weak || strong) {
+ weak = weak * 0xff / 0xffff;
+ strong = strong * 0xff / 0xffff;
+
+ lg2ff->report->field[0]->value[0] = 0x51;
+ lg2ff->report->field[0]->value[2] = weak;
+ lg2ff->report->field[0]->value[4] = strong;
+ } else {
+ lg2ff->report->field[0]->value[0] = 0xf3;
+ lg2ff->report->field[0]->value[2] = 0x00;
+ lg2ff->report->field[0]->value[4] = 0x00;
+ }
+
+ usbhid_submit_report(hid, lg2ff->report, USB_DIR_OUT);
+ return 0;
+}
+
+int hid_lg2ff_init(struct hid_device *hid)
+{
+ struct lg2ff_device *lg2ff;
+ struct hid_report *report;
+ struct hid_input *hidinput = list_entry(hid->inputs.next,
+ struct hid_input, list);
+ struct list_head *report_list =
+ &hid->report_enum[HID_OUTPUT_REPORT].report_list;
+ struct input_dev *dev = hidinput->input;
+ int error;
+
+ if (list_empty(report_list)) {
+ printk(KERN_ERR "hid-lg2ff: no output report found\n");
+ return -ENODEV;
+ }
+
+ report = list_entry(report_list->next, struct hid_report, list);
+
+ if (report->maxfield < 1) {
+ printk(KERN_ERR "hid-lg2ff: output report is empty\n");
+ return -ENODEV;
+ }
+ if (report->field[0]->report_count < 7) {
+ printk(KERN_ERR "hid-lg2ff: not enough values in the field\n");
+ return -ENODEV;
+ }
+
+ lg2ff = kmalloc(sizeof(struct lg2ff_device), GFP_KERNEL);
+ if (!lg2ff)
+ return -ENOMEM;
+
+ set_bit(FF_RUMBLE, dev->ffbit);
+
+ error = input_ff_create_memless(dev, lg2ff, play_effect);
+ if (error) {
+ kfree(lg2ff);
+ return error;
+ }
+
+ lg2ff->report = report;
+ report->field[0]->value[0] = 0xf3;
+ report->field[0]->value[1] = 0x00;
+ report->field[0]->value[2] = 0x00;
+ report->field[0]->value[3] = 0x00;
+ report->field[0]->value[4] = 0x00;
+ report->field[0]->value[5] = 0x00;
+ report->field[0]->value[6] = 0x00;
+
+ usbhid_submit_report(hid, report, USB_DIR_OUT);
+
+ printk(KERN_INFO "Force feedback for Logitech Rumblepad 2 by "
+ "Anssi Hannula <anssi.hannula@gmail.com>\n");
+
+ return 0;
+}
diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c
index e29a057..28ddc3f 100644
--- a/drivers/hid/usbhid/hid-quirks.c
+++ b/drivers/hid/usbhid/hid-quirks.c
@@ -32,6 +32,9 @@
#define USB_VENDOR_ID_ADS_TECH 0x06e1
#define USB_DEVICE_ID_ADS_TECH_RADIO_SI470X 0xa155
+#define USB_VENDOR_ID_AFATECH 0x15a4
+#define USB_DEVICE_ID_AFATECH_AF9016 0x9016
+
#define USB_VENDOR_ID_AIPTEK 0x08ca
#define USB_DEVICE_ID_AIPTEK_01 0x0001
#define USB_DEVICE_ID_AIPTEK_10 0x0010
@@ -124,6 +127,9 @@
#define USB_DEVICE_ID_DELORME_EARTHMATE 0x0100
#define USB_DEVICE_ID_DELORME_EM_LT20 0x0200
+#define USB_VENDOR_ID_DMI 0x0c0b
+#define USB_DEVICE_ID_DMI_ENC 0x5fab
+
#define USB_VENDOR_ID_ELO 0x04E7
#define USB_DEVICE_ID_ELO_TS2700 0x0020
@@ -199,17 +205,6 @@
#define USB_DEVICE_ID_GTCO_502 0x0502
#define USB_DEVICE_ID_GTCO_503 0x0503
#define USB_DEVICE_ID_GTCO_504 0x0504
-#define USB_DEVICE_ID_GTCO_600 0x0600
-#define USB_DEVICE_ID_GTCO_601 0x0601
-#define USB_DEVICE_ID_GTCO_602 0x0602
-#define USB_DEVICE_ID_GTCO_603 0x0603
-#define USB_DEVICE_ID_GTCO_604 0x0604
-#define USB_DEVICE_ID_GTCO_605 0x0605
-#define USB_DEVICE_ID_GTCO_606 0x0606
-#define USB_DEVICE_ID_GTCO_607 0x0607
-#define USB_DEVICE_ID_GTCO_608 0x0608
-#define USB_DEVICE_ID_GTCO_609 0x0609
-#define USB_DEVICE_ID_GTCO_609 0x0609
#define USB_DEVICE_ID_GTCO_1000 0x1000
#define USB_DEVICE_ID_GTCO_1001 0x1001
#define USB_DEVICE_ID_GTCO_1002 0x1002
@@ -320,6 +315,7 @@
#define USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500 0xc512
#define USB_DEVICE_ID_MX3000_RECEIVER 0xc513
#define USB_DEVICE_ID_DINOVO_EDGE 0xc714
+#define USB_DEVICE_ID_DINOVO_MINI 0xc71f
#define USB_VENDOR_ID_MCC 0x09db
#define USB_DEVICE_ID_MCC_PMD1024LS 0x0076
@@ -332,6 +328,7 @@
#define USB_VENDOR_ID_MICROSOFT 0x045e
#define USB_DEVICE_ID_SIDEWINDER_GV 0x003b
#define USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0 0x009d
+#define USB_DEVICE_ID_DESKTOP_RECV_1028 0x00f9
#define USB_DEVICE_ID_MS_NE4K 0x00db
#define USB_DEVICE_ID_MS_LK6K 0x00f9
@@ -377,6 +374,9 @@
#define USB_VENDOR_ID_SUN 0x0430
#define USB_DEVICE_ID_RARITAN_KVM_DONGLE 0xcdab
+#define USB_VENDOR_ID_SUNPLUS 0x04fc
+#define USB_DEVICE_ID_SUNPLUS_WDESKTOP 0x05d8
+
#define USB_VENDOR_ID_TOPMAX 0x0663
#define USB_DEVICE_ID_TOPMAX_COBRAPAD 0x0103
@@ -435,9 +435,13 @@
{ USB_VENDOR_ID_TOPMAX, USB_DEVICE_ID_TOPMAX_COBRAPAD, HID_QUIRK_BADPAD },
{ USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE, HID_QUIRK_DUPLICATE_USAGES },
+ { USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_MINI, HID_QUIRK_DUPLICATE_USAGES },
+
+ { USB_VENDOR_ID_AFATECH, USB_DEVICE_ID_AFATECH_AF9016, HID_QUIRK_FULLSPEED_INTERVAL },
{ USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM, HID_QUIRK_HIDDEV },
{ USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4, HID_QUIRK_HIDDEV | HID_QUIRK_IGNORE_HIDINPUT },
+ { USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE, HID_QUIRK_HIDDEV | HID_QUIRK_IGNORE_HIDINPUT },
{ USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV, HID_QUIRK_HIDINPUT },
{ USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193, HID_QUIRK_HWHEEL_WHEEL_INVERT },
@@ -518,16 +522,6 @@
{ USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_502, HID_QUIRK_IGNORE },
{ USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_503, HID_QUIRK_IGNORE },
{ USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_504, HID_QUIRK_IGNORE },
- { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_600, HID_QUIRK_IGNORE },
- { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_601, HID_QUIRK_IGNORE },
- { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_602, HID_QUIRK_IGNORE },
- { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_603, HID_QUIRK_IGNORE },
- { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_604, HID_QUIRK_IGNORE },
- { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_605, HID_QUIRK_IGNORE },
- { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_606, HID_QUIRK_IGNORE },
- { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_607, HID_QUIRK_IGNORE },
- { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_608, HID_QUIRK_IGNORE },
- { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_609, HID_QUIRK_IGNORE },
{ USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1000, HID_QUIRK_IGNORE },
{ USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1001, HID_QUIRK_IGNORE },
{ USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1002, HID_QUIRK_IGNORE },
@@ -601,6 +595,7 @@
{ USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_2PORTKVM, HID_QUIRK_NOGET },
{ USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVM, HID_QUIRK_NOGET },
{ USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVMC, HID_QUIRK_NOGET },
+ { USB_VENDOR_ID_DMI, USB_DEVICE_ID_DMI_ENC, HID_QUIRK_NOGET },
{ USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2700, HID_QUIRK_NOGET },
{ USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D, HID_QUIRK_NOGET },
{ USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL, HID_QUIRK_NOGET },
@@ -608,7 +603,7 @@
{ USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE, HID_QUIRK_NOGET },
{ USB_VENDOR_ID_SUN, USB_DEVICE_ID_RARITAN_KVM_DONGLE, HID_QUIRK_NOGET },
{ USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_TURBOX_KEYBOARD, HID_QUIRK_NOGET },
- { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT },
+ { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT | HID_QUIRK_SKIP_OUTPUT_REPORTS },
{ USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_QUAD_USB_JOYPAD, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT },
{ USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SMARTJOY_DUAL_PLUS, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT },
@@ -719,6 +714,7 @@
{ USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER, HID_QUIRK_RDESC_LOGITECH },
{ USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER, HID_QUIRK_RDESC_LOGITECH },
{ USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2, HID_QUIRK_RDESC_LOGITECH },
+ { USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_DESKTOP_RECV_1028, HID_QUIRK_RDESC_MICROSOFT_RECV_1028 },
{ USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E, HID_QUIRK_RDESC_BUTTON_CONSUMER },
@@ -728,6 +724,8 @@
{ USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE, HID_QUIRK_RDESC_SAMSUNG_REMOTE },
+ { USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP, HID_QUIRK_RDESC_SUNPLUS_WDESKTOP },
+
{ USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1, HID_QUIRK_RDESC_SWAPPED_MIN_MAX },
{ USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2, HID_QUIRK_RDESC_SWAPPED_MIN_MAX },
@@ -793,8 +791,8 @@
*
* Returns: 0 OK, -error on failure.
*/
-int usbhid_modify_dquirk(const u16 idVendor, const u16 idProduct,
- const u32 quirks)
+static int usbhid_modify_dquirk(const u16 idVendor, const u16 idProduct,
+ const u32 quirks)
{
struct quirks_list_struct *q_new, *q;
int list_edited = 0;
@@ -1002,6 +1000,17 @@
}
}
+static void usbhid_fixup_sunplus_wdesktop(unsigned char *rdesc, int rsize)
+{
+ if (rsize >= 107 && rdesc[104] == 0x26
+ && rdesc[105] == 0x80
+ && rdesc[106] == 0x03) {
+ printk(KERN_INFO "Fixing up Sunplus Wireless Desktop report descriptor\n");
+ rdesc[105] = rdesc[110] = 0x03;
+ rdesc[106] = rdesc[111] = 0x21;
+ }
+}
+
/*
* Samsung IrDA remote controller (reports as Cypress USB Mouse).
*
@@ -1089,6 +1098,28 @@
}
}
+/*
+ * Microsoft Wireless Desktop Receiver (Model 1028) has several
+ * 'Usage Min/Max' where it ought to have 'Physical Min/Max'
+ */
+static void usbhid_fixup_microsoft_descriptor(unsigned char *rdesc, int rsize)
+{
+ if (rsize == 571 && rdesc[284] == 0x19
+ && rdesc[286] == 0x2a
+ && rdesc[304] == 0x19
+ && rdesc[306] == 0x29
+ && rdesc[352] == 0x1a
+ && rdesc[355] == 0x2a
+ && rdesc[557] == 0x19
+ && rdesc[559] == 0x29) {
+ printk(KERN_INFO "Fixing up Microsoft Wireless Receiver Model 1028 report descriptor\n");
+ rdesc[284] = rdesc[304] = rdesc[558] = 0x35;
+ rdesc[352] = 0x36;
+ rdesc[286] = rdesc[355] = 0x46;
+ rdesc[306] = rdesc[559] = 0x45;
+ }
+}
+
static void __usbhid_fixup_report_descriptor(__u32 quirks, char *rdesc, unsigned rsize)
{
if ((quirks & HID_QUIRK_RDESC_CYMOTION))
@@ -1112,6 +1143,11 @@
if (quirks & HID_QUIRK_RDESC_SAMSUNG_REMOTE)
usbhid_fixup_samsung_irda_descriptor(rdesc, rsize);
+ if (quirks & HID_QUIRK_RDESC_MICROSOFT_RECV_1028)
+ usbhid_fixup_microsoft_descriptor(rdesc, rsize);
+
+ if (quirks & HID_QUIRK_RDESC_SUNPLUS_WDESKTOP)
+ usbhid_fixup_sunplus_wdesktop(rdesc, rsize);
}
/**
@@ -1150,5 +1186,4 @@
else if (paramVendor == idVendor && paramProduct == idProduct)
__usbhid_fixup_report_descriptor(quirks, rdesc, rsize);
}
-
}
diff --git a/drivers/hid/usbhid/hiddev.c b/drivers/hid/usbhid/hiddev.c
index 5fc4019..95cc192 100644
--- a/drivers/hid/usbhid/hiddev.c
+++ b/drivers/hid/usbhid/hiddev.c
@@ -393,6 +393,153 @@
/*
* "ioctl" file op
*/
+static noinline int hiddev_ioctl_usage(struct hiddev *hiddev, unsigned int cmd, void __user *user_arg)
+{
+ struct hid_device *hid = hiddev->hid;
+ struct hiddev_report_info rinfo;
+ struct hiddev_usage_ref_multi *uref_multi = NULL;
+ struct hiddev_usage_ref *uref;
+ struct hid_report *report;
+ struct hid_field *field;
+ int i;
+
+ uref_multi = kmalloc(sizeof(struct hiddev_usage_ref_multi), GFP_KERNEL);
+ if (!uref_multi)
+ return -ENOMEM;
+ uref = &uref_multi->uref;
+ if (cmd == HIDIOCGUSAGES || cmd == HIDIOCSUSAGES) {
+ if (copy_from_user(uref_multi, user_arg,
+ sizeof(*uref_multi)))
+ goto fault;
+ } else {
+ if (copy_from_user(uref, user_arg, sizeof(*uref)))
+ goto fault;
+ }
+
+ switch (cmd) {
+ case HIDIOCGUCODE:
+ rinfo.report_type = uref->report_type;
+ rinfo.report_id = uref->report_id;
+ if ((report = hiddev_lookup_report(hid, &rinfo)) == NULL)
+ goto inval;
+
+ if (uref->field_index >= report->maxfield)
+ goto inval;
+
+ field = report->field[uref->field_index];
+ if (uref->usage_index >= field->maxusage)
+ goto inval;
+
+ uref->usage_code = field->usage[uref->usage_index].hid;
+
+ if (copy_to_user(user_arg, uref, sizeof(*uref)))
+ goto fault;
+
+ kfree(uref_multi);
+ return 0;
+
+ default:
+ if (cmd != HIDIOCGUSAGE &&
+ cmd != HIDIOCGUSAGES &&
+ uref->report_type == HID_REPORT_TYPE_INPUT)
+ goto inval;
+
+ if (uref->report_id == HID_REPORT_ID_UNKNOWN) {
+ field = hiddev_lookup_usage(hid, uref);
+ if (field == NULL)
+ goto inval;
+ } else {
+ rinfo.report_type = uref->report_type;
+ rinfo.report_id = uref->report_id;
+ if ((report = hiddev_lookup_report(hid, &rinfo)) == NULL)
+ goto inval;
+
+ if (uref->field_index >= report->maxfield)
+ goto inval;
+
+ field = report->field[uref->field_index];
+
+ if (cmd == HIDIOCGCOLLECTIONINDEX) {
+ if (uref->usage_index >= field->maxusage)
+ goto inval;
+ } else if (uref->usage_index >= field->report_count)
+ goto inval;
+
+ else if ((cmd == HIDIOCGUSAGES || cmd == HIDIOCSUSAGES) &&
+ (uref_multi->num_values > HID_MAX_MULTI_USAGES ||
+ uref->usage_index + uref_multi->num_values > field->report_count))
+ goto inval;
+ }
+
+ switch (cmd) {
+ case HIDIOCGUSAGE:
+ uref->value = field->value[uref->usage_index];
+ if (copy_to_user(user_arg, uref, sizeof(*uref)))
+ goto fault;
+ goto goodreturn;
+
+ case HIDIOCSUSAGE:
+ field->value[uref->usage_index] = uref->value;
+ goto goodreturn;
+
+ case HIDIOCGCOLLECTIONINDEX:
+ kfree(uref_multi);
+ return field->usage[uref->usage_index].collection_index;
+ case HIDIOCGUSAGES:
+ for (i = 0; i < uref_multi->num_values; i++)
+ uref_multi->values[i] =
+ field->value[uref->usage_index + i];
+ if (copy_to_user(user_arg, uref_multi,
+ sizeof(*uref_multi)))
+ goto fault;
+ goto goodreturn;
+ case HIDIOCSUSAGES:
+ for (i = 0; i < uref_multi->num_values; i++)
+ field->value[uref->usage_index + i] =
+ uref_multi->values[i];
+ goto goodreturn;
+ }
+
+goodreturn:
+ kfree(uref_multi);
+ return 0;
+fault:
+ kfree(uref_multi);
+ return -EFAULT;
+inval:
+ kfree(uref_multi);
+ return -EINVAL;
+ }
+}
+
+static noinline int hiddev_ioctl_string(struct hiddev *hiddev, unsigned int cmd, void __user *user_arg)
+{
+ struct hid_device *hid = hiddev->hid;
+ struct usb_device *dev = hid_to_usb_dev(hid);
+ int idx, len;
+ char *buf;
+
+ if (get_user(idx, (int __user *)user_arg))
+ return -EFAULT;
+
+ if ((buf = kmalloc(HID_STRING_SIZE, GFP_KERNEL)) == NULL)
+ return -ENOMEM;
+
+ if ((len = usb_string(dev, idx, buf, HID_STRING_SIZE-1)) < 0) {
+ kfree(buf);
+ return -EINVAL;
+ }
+
+ if (copy_to_user(user_arg+sizeof(int), buf, len+1)) {
+ kfree(buf);
+ return -EFAULT;
+ }
+
+ kfree(buf);
+
+ return len;
+}
+
static int hiddev_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
{
struct hiddev_list *list = file->private_data;
@@ -402,8 +549,6 @@
struct hiddev_collection_info cinfo;
struct hiddev_report_info rinfo;
struct hiddev_field_info finfo;
- struct hiddev_usage_ref_multi *uref_multi = NULL;
- struct hiddev_usage_ref *uref;
struct hiddev_devinfo dinfo;
struct hid_report *report;
struct hid_field *field;
@@ -470,30 +615,7 @@
}
case HIDIOCGSTRING:
- {
- int idx, len;
- char *buf;
-
- if (get_user(idx, (int __user *)arg))
- return -EFAULT;
-
- if ((buf = kmalloc(HID_STRING_SIZE, GFP_KERNEL)) == NULL)
- return -ENOMEM;
-
- if ((len = usb_string(dev, idx, buf, HID_STRING_SIZE-1)) < 0) {
- kfree(buf);
- return -EINVAL;
- }
-
- if (copy_to_user(user_arg+sizeof(int), buf, len+1)) {
- kfree(buf);
- return -EFAULT;
- }
-
- kfree(buf);
-
- return len;
- }
+ return hiddev_ioctl_string(hiddev, cmd, user_arg);
case HIDIOCINITREPORT:
usbhid_init_reports(hid);
@@ -578,121 +700,13 @@
return 0;
case HIDIOCGUCODE:
- uref_multi = kmalloc(sizeof(struct hiddev_usage_ref_multi), GFP_KERNEL);
- if (!uref_multi)
- return -ENOMEM;
- uref = &uref_multi->uref;
- if (copy_from_user(uref, user_arg, sizeof(*uref)))
- goto fault;
-
- rinfo.report_type = uref->report_type;
- rinfo.report_id = uref->report_id;
- if ((report = hiddev_lookup_report(hid, &rinfo)) == NULL)
- goto inval;
-
- if (uref->field_index >= report->maxfield)
- goto inval;
-
- field = report->field[uref->field_index];
- if (uref->usage_index >= field->maxusage)
- goto inval;
-
- uref->usage_code = field->usage[uref->usage_index].hid;
-
- if (copy_to_user(user_arg, uref, sizeof(*uref)))
- goto fault;
-
- kfree(uref_multi);
- return 0;
-
+ /* fall through */
case HIDIOCGUSAGE:
case HIDIOCSUSAGE:
case HIDIOCGUSAGES:
case HIDIOCSUSAGES:
case HIDIOCGCOLLECTIONINDEX:
- uref_multi = kmalloc(sizeof(struct hiddev_usage_ref_multi), GFP_KERNEL);
- if (!uref_multi)
- return -ENOMEM;
- uref = &uref_multi->uref;
- if (cmd == HIDIOCGUSAGES || cmd == HIDIOCSUSAGES) {
- if (copy_from_user(uref_multi, user_arg,
- sizeof(*uref_multi)))
- goto fault;
- } else {
- if (copy_from_user(uref, user_arg, sizeof(*uref)))
- goto fault;
- }
-
- if (cmd != HIDIOCGUSAGE &&
- cmd != HIDIOCGUSAGES &&
- uref->report_type == HID_REPORT_TYPE_INPUT)
- goto inval;
-
- if (uref->report_id == HID_REPORT_ID_UNKNOWN) {
- field = hiddev_lookup_usage(hid, uref);
- if (field == NULL)
- goto inval;
- } else {
- rinfo.report_type = uref->report_type;
- rinfo.report_id = uref->report_id;
- if ((report = hiddev_lookup_report(hid, &rinfo)) == NULL)
- goto inval;
-
- if (uref->field_index >= report->maxfield)
- goto inval;
-
- field = report->field[uref->field_index];
-
- if (cmd == HIDIOCGCOLLECTIONINDEX) {
- if (uref->usage_index >= field->maxusage)
- goto inval;
- } else if (uref->usage_index >= field->report_count)
- goto inval;
-
- else if ((cmd == HIDIOCGUSAGES || cmd == HIDIOCSUSAGES) &&
- (uref_multi->num_values > HID_MAX_MULTI_USAGES ||
- uref->usage_index + uref_multi->num_values > field->report_count))
- goto inval;
- }
-
- switch (cmd) {
- case HIDIOCGUSAGE:
- uref->value = field->value[uref->usage_index];
- if (copy_to_user(user_arg, uref, sizeof(*uref)))
- goto fault;
- goto goodreturn;
-
- case HIDIOCSUSAGE:
- field->value[uref->usage_index] = uref->value;
- goto goodreturn;
-
- case HIDIOCGCOLLECTIONINDEX:
- kfree(uref_multi);
- return field->usage[uref->usage_index].collection_index;
- case HIDIOCGUSAGES:
- for (i = 0; i < uref_multi->num_values; i++)
- uref_multi->values[i] =
- field->value[uref->usage_index + i];
- if (copy_to_user(user_arg, uref_multi,
- sizeof(*uref_multi)))
- goto fault;
- goto goodreturn;
- case HIDIOCSUSAGES:
- for (i = 0; i < uref_multi->num_values; i++)
- field->value[uref->usage_index + i] =
- uref_multi->values[i];
- goto goodreturn;
- }
-
-goodreturn:
- kfree(uref_multi);
- return 0;
-fault:
- kfree(uref_multi);
- return -EFAULT;
-inval:
- kfree(uref_multi);
- return -EINVAL;
+ return hiddev_ioctl_usage(hiddev, cmd, user_arg);
case HIDIOCGCOLLECTIONINFO:
if (copy_from_user(&cinfo, user_arg, sizeof(cinfo)))
diff --git a/drivers/hid/usbhid/usbhid.h b/drivers/hid/usbhid/usbhid.h
index 0023f96..62d2d7c 100644
--- a/drivers/hid/usbhid/usbhid.h
+++ b/drivers/hid/usbhid/usbhid.h
@@ -28,6 +28,7 @@
#include <linux/slab.h>
#include <linux/list.h>
#include <linux/timer.h>
+#include <linux/wait.h>
#include <linux/workqueue.h>
#include <linux/input.h>
@@ -77,7 +78,7 @@
unsigned long stop_retry; /* Time to give up, in jiffies */
unsigned int retry_delay; /* Delay length in ms */
struct work_struct reset_work; /* Task context for resets */
-
+ wait_queue_head_t wait; /* For sleeping */
};
#define hid_to_usb_dev(hid_dev) \
diff --git a/drivers/i2c/algos/Kconfig b/drivers/i2c/algos/Kconfig
index 014dfa5..7137a17 100644
--- a/drivers/i2c/algos/Kconfig
+++ b/drivers/i2c/algos/Kconfig
@@ -1,45 +1,16 @@
#
-# Character device configuration
+# I2C algorithm drivers configuration
#
-menu "I2C Algorithms"
-
config I2C_ALGOBIT
- tristate "I2C bit-banging interfaces"
- help
- This allows you to use a range of I2C adapters called bit-banging
- adapters. Say Y if you own an I2C adapter belonging to this class
- and then say Y to the specific driver for you adapter below.
-
- This support is also available as a module. If so, the module
- will be called i2c-algo-bit.
+ tristate
config I2C_ALGOPCF
- tristate "I2C PCF 8584 interfaces"
- help
- This allows you to use a range of I2C adapters called PCF adapters.
- Say Y if you own an I2C adapter belonging to this class and then say
- Y to the specific driver for you adapter below.
-
- This support is also available as a module. If so, the module
- will be called i2c-algo-pcf.
+ tristate
config I2C_ALGOPCA
- tristate "I2C PCA 9564 interfaces"
- help
- This allows you to use a range of I2C adapters called PCA adapters.
- Say Y if you own an I2C adapter belonging to this class and then say
- Y to the specific driver for you adapter below.
-
- This support is also available as a module. If so, the module
- will be called i2c-algo-pca.
+ tristate
config I2C_ALGO_SGI
- tristate "I2C SGI interfaces"
+ tristate
depends on SGI_IP22 || SGI_IP32 || X86_VISWS
- help
- Supports the SGI interfaces like the ones found on SGI Indy VINO
- or SGI O2 MACE.
-
-endmenu
-
diff --git a/drivers/i2c/algos/i2c-algo-pca.c b/drivers/i2c/algos/i2c-algo-pca.c
index 2a16211..e954a20b 100644
--- a/drivers/i2c/algos/i2c-algo-pca.c
+++ b/drivers/i2c/algos/i2c-algo-pca.c
@@ -1,6 +1,7 @@
/*
- * i2c-algo-pca.c i2c driver algorithms for PCA9564 adapters
+ * i2c-algo-pca.c i2c driver algorithms for PCA9564 adapters
* Copyright (C) 2004 Arcom Control Systems
+ * Copyright (C) 2008 Pengutronix
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -21,14 +22,10 @@
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/delay.h>
-#include <linux/slab.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-pca.h>
-#include "i2c-algo-pca.h"
-
-#define DRIVER "i2c-algo-pca"
#define DEB1(fmt, args...) do { if (i2c_debug>=1) printk(fmt, ## args); } while(0)
#define DEB2(fmt, args...) do { if (i2c_debug>=2) printk(fmt, ## args); } while(0)
@@ -36,15 +33,15 @@
static int i2c_debug;
-#define pca_outw(adap, reg, val) adap->write_byte(adap, reg, val)
-#define pca_inw(adap, reg) adap->read_byte(adap, reg)
+#define pca_outw(adap, reg, val) adap->write_byte(adap->data, reg, val)
+#define pca_inw(adap, reg) adap->read_byte(adap->data, reg)
#define pca_status(adap) pca_inw(adap, I2C_PCA_STA)
-#define pca_clock(adap) adap->get_clock(adap)
-#define pca_own(adap) adap->get_own(adap)
+#define pca_clock(adap) adap->i2c_clock
#define pca_set_con(adap, val) pca_outw(adap, I2C_PCA_CON, val)
#define pca_get_con(adap) pca_inw(adap, I2C_PCA_CON)
-#define pca_wait(adap) adap->wait_for_interrupt(adap)
+#define pca_wait(adap) adap->wait_for_completion(adap->data)
+#define pca_reset(adap) adap->reset_chip(adap->data)
/*
* Generate a start condition on the i2c bus.
@@ -99,7 +96,7 @@
*
* returns after the address has been sent
*/
-static void pca_address(struct i2c_algo_pca_data *adap,
+static void pca_address(struct i2c_algo_pca_data *adap,
struct i2c_msg *msg)
{
int sta = pca_get_con(adap);
@@ -108,9 +105,9 @@
addr = ( (0x7f & msg->addr) << 1 );
if (msg->flags & I2C_M_RD )
addr |= 1;
- DEB2("=== SLAVE ADDRESS %#04x+%c=%#04x\n",
+ DEB2("=== SLAVE ADDRESS %#04x+%c=%#04x\n",
msg->addr, msg->flags & I2C_M_RD ? 'R' : 'W', addr);
-
+
pca_outw(adap, I2C_PCA_DAT, addr);
sta &= ~(I2C_PCA_CON_STO|I2C_PCA_CON_STA|I2C_PCA_CON_SI);
@@ -124,7 +121,7 @@
*
* Returns after the byte has been transmitted
*/
-static void pca_tx_byte(struct i2c_algo_pca_data *adap,
+static void pca_tx_byte(struct i2c_algo_pca_data *adap,
__u8 b)
{
int sta = pca_get_con(adap);
@@ -142,19 +139,19 @@
*
* returns immediately.
*/
-static void pca_rx_byte(struct i2c_algo_pca_data *adap,
+static void pca_rx_byte(struct i2c_algo_pca_data *adap,
__u8 *b, int ack)
{
*b = pca_inw(adap, I2C_PCA_DAT);
DEB2("=== READ %#04x %s\n", *b, ack ? "ACK" : "NACK");
}
-/*
+/*
* Setup ACK or NACK for next received byte and wait for it to arrive.
*
* Returns after next byte has arrived.
*/
-static void pca_rx_ack(struct i2c_algo_pca_data *adap,
+static void pca_rx_ack(struct i2c_algo_pca_data *adap,
int ack)
{
int sta = pca_get_con(adap);
@@ -168,15 +165,6 @@
pca_wait(adap);
}
-/*
- * Reset the i2c bus / SIO
- */
-static void pca_reset(struct i2c_algo_pca_data *adap)
-{
- /* apparently only an external reset will do it. not a lot can be done */
- printk(KERN_ERR DRIVER ": Haven't figured out how to do a reset yet\n");
-}
-
static int pca_xfer(struct i2c_adapter *i2c_adap,
struct i2c_msg *msgs,
int num)
@@ -187,7 +175,7 @@
int numbytes = 0;
int state;
int ret;
- int timeout = 100;
+ int timeout = i2c_adap->timeout;
while ((state = pca_status(adap)) != 0xf8 && timeout--) {
msleep(10);
@@ -203,14 +191,14 @@
for (curmsg = 0; curmsg < num; curmsg++) {
int addr, i;
msg = &msgs[curmsg];
-
+
addr = (0x7f & msg->addr) ;
-
+
if (msg->flags & I2C_M_RD )
- printk(KERN_INFO " [%02d] RD %d bytes from %#02x [%#02x, ...]\n",
+ printk(KERN_INFO " [%02d] RD %d bytes from %#02x [%#02x, ...]\n",
curmsg, msg->len, addr, (addr<<1) | 1);
else {
- printk(KERN_INFO " [%02d] WR %d bytes to %#02x [%#02x%s",
+ printk(KERN_INFO " [%02d] WR %d bytes to %#02x [%#02x%s",
curmsg, msg->len, addr, addr<<1,
msg->len == 0 ? "" : ", ");
for(i=0; i < msg->len; i++)
@@ -237,7 +225,7 @@
case 0x10: /* A repeated start condition has been transmitted */
pca_address(adap, msg);
break;
-
+
case 0x18: /* SLA+W has been transmitted; ACK has been received */
case 0x28: /* Data byte in I2CDAT has been transmitted; ACK has been received */
if (numbytes < msg->len) {
@@ -287,7 +275,7 @@
case 0x38: /* Arbitration lost during SLA+W, SLA+R or data bytes */
DEB2("Arbitration lost\n");
goto out;
-
+
case 0x58: /* Data byte has been received; NOT ACK has been returned */
if ( numbytes == msg->len - 1 ) {
pca_rx_byte(adap, &msg->buf[numbytes], 0);
@@ -317,16 +305,16 @@
pca_reset(adap);
goto out;
default:
- printk(KERN_ERR DRIVER ": unhandled SIO state 0x%02x\n", state);
+ dev_err(&i2c_adap->dev, "unhandled SIO state 0x%02x\n", state);
break;
}
-
+
}
ret = curmsg;
out:
DEB1(KERN_CRIT "}}} transfered %d/%d messages. "
- "status is %#04x. control is %#04x\n",
+ "status is %#04x. control is %#04x\n",
curmsg, num, pca_status(adap),
pca_get_con(adap));
return ret;
@@ -337,53 +325,65 @@
return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
}
-static int pca_init(struct i2c_algo_pca_data *adap)
-{
- static int freqs[] = {330,288,217,146,88,59,44,36};
- int own, clock;
-
- own = pca_own(adap);
- clock = pca_clock(adap);
- DEB1(KERN_INFO DRIVER ": own address is %#04x\n", own);
- DEB1(KERN_INFO DRIVER ": clock freqeuncy is %dkHz\n", freqs[clock]);
-
- pca_outw(adap, I2C_PCA_ADR, own << 1);
-
- pca_set_con(adap, I2C_PCA_CON_ENSIO | clock);
- udelay(500); /* 500 µs for oscilator to stabilise */
-
- return 0;
-}
-
static const struct i2c_algorithm pca_algo = {
.master_xfer = pca_xfer,
.functionality = pca_func,
};
-/*
- * registering functions to load algorithms at runtime
+static int pca_init(struct i2c_adapter *adap)
+{
+ static int freqs[] = {330,288,217,146,88,59,44,36};
+ int clock;
+ struct i2c_algo_pca_data *pca_data = adap->algo_data;
+
+ if (pca_data->i2c_clock > 7) {
+ printk(KERN_WARNING "%s: Invalid I2C clock speed selected. Trying default.\n",
+ adap->name);
+ pca_data->i2c_clock = I2C_PCA_CON_59kHz;
+ }
+
+ adap->algo = &pca_algo;
+
+ pca_reset(pca_data);
+
+ clock = pca_clock(pca_data);
+ DEB1(KERN_INFO "%s: Clock frequency is %dkHz\n", adap->name, freqs[clock]);
+
+ pca_set_con(pca_data, I2C_PCA_CON_ENSIO | clock);
+ udelay(500); /* 500 us for oscilator to stabilise */
+
+ return 0;
+}
+
+/*
+ * registering functions to load algorithms at runtime
*/
int i2c_pca_add_bus(struct i2c_adapter *adap)
{
- struct i2c_algo_pca_data *pca_adap = adap->algo_data;
int rval;
- /* register new adapter to i2c module... */
- adap->algo = &pca_algo;
-
- adap->timeout = 100; /* default values, should */
- adap->retries = 3; /* be replaced by defines */
-
- if ((rval = pca_init(pca_adap)))
+ rval = pca_init(adap);
+ if (rval)
return rval;
- rval = i2c_add_adapter(adap);
-
- return rval;
+ return i2c_add_adapter(adap);
}
EXPORT_SYMBOL(i2c_pca_add_bus);
-MODULE_AUTHOR("Ian Campbell <icampbell@arcom.com>");
+int i2c_pca_add_numbered_bus(struct i2c_adapter *adap)
+{
+ int rval;
+
+ rval = pca_init(adap);
+ if (rval)
+ return rval;
+
+ return i2c_add_numbered_adapter(adap);
+}
+EXPORT_SYMBOL(i2c_pca_add_numbered_bus);
+
+MODULE_AUTHOR("Ian Campbell <icampbell@arcom.com>, "
+ "Wolfram Sang <w.sang@pengutronix.de>");
MODULE_DESCRIPTION("I2C-Bus PCA9564 algorithm");
MODULE_LICENSE("GPL");
diff --git a/drivers/i2c/algos/i2c-algo-pca.h b/drivers/i2c/algos/i2c-algo-pca.h
deleted file mode 100644
index 2fee07e..0000000
--- a/drivers/i2c/algos/i2c-algo-pca.h
+++ /dev/null
@@ -1,26 +0,0 @@
-#ifndef I2C_PCA9564_H
-#define I2C_PCA9564_H 1
-
-#define I2C_PCA_STA 0x00 /* STATUS Read Only */
-#define I2C_PCA_TO 0x00 /* TIMEOUT Write Only */
-#define I2C_PCA_DAT 0x01 /* DATA Read/Write */
-#define I2C_PCA_ADR 0x02 /* OWN ADR Read/Write */
-#define I2C_PCA_CON 0x03 /* CONTROL Read/Write */
-
-#define I2C_PCA_CON_AA 0x80 /* Assert Acknowledge */
-#define I2C_PCA_CON_ENSIO 0x40 /* Enable */
-#define I2C_PCA_CON_STA 0x20 /* Start */
-#define I2C_PCA_CON_STO 0x10 /* Stop */
-#define I2C_PCA_CON_SI 0x08 /* Serial Interrupt */
-#define I2C_PCA_CON_CR 0x07 /* Clock Rate (MASK) */
-
-#define I2C_PCA_CON_330kHz 0x00
-#define I2C_PCA_CON_288kHz 0x01
-#define I2C_PCA_CON_217kHz 0x02
-#define I2C_PCA_CON_146kHz 0x03
-#define I2C_PCA_CON_88kHz 0x04
-#define I2C_PCA_CON_59kHz 0x05
-#define I2C_PCA_CON_44kHz 0x06
-#define I2C_PCA_CON_36kHz 0x07
-
-#endif /* I2C_PCA9564_H */
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index b04c995..48438cc 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -100,9 +100,12 @@
config I2C_BLACKFIN_TWI
tristate "Blackfin TWI I2C support"
- depends on BF534 || BF536 || BF537
+ depends on BLACKFIN
help
- This is the TWI I2C device driver for Blackfin 534/536/537/54x.
+ This is the TWI I2C device driver for Blackfin BF522, BF525,
+ BF527, BF534, BF536, BF537 and BF54x. For other Blackfin processors,
+ please don't use this driver.
+
This driver can also be built as a module. If so, the module
will be called i2c-bfin-twi.
@@ -135,7 +138,7 @@
This supports the PCF8584 ISA bus I2C adapter. Say Y if you own
such an adapter.
- This support is also available as a module. If so, the module
+ This support is also available as a module. If so, the module
will be called i2c-elektor.
config I2C_GPIO
@@ -190,7 +193,7 @@
select I2C_ALGOBIT
help
If you say yes to this option, support will be included for the Intel
- 810/815 family of mainboard I2C interfaces. Specifically, the
+ 810/815 family of mainboard I2C interfaces. Specifically, the
following versions of the chipset are supported:
i810AA
i810AB
@@ -246,10 +249,10 @@
config I2C_IBM_IIC
tristate "IBM PPC 4xx on-chip I2C interface"
- depends on IBM_OCP
+ depends on 4xx
help
- Say Y here if you want to use IIC peripheral found on
- embedded IBM PPC 4xx based systems.
+ Say Y here if you want to use IIC peripheral found on
+ embedded IBM PPC 4xx based systems.
This driver can also be built as a module. If so, the module
will be called i2c-ibm_iic.
@@ -269,7 +272,7 @@
depends on ARCH_IXP2000
select I2C_ALGOBIT
help
- Say Y here if you have an Intel IXP2000 (2400, 2800, 2850) based
+ Say Y here if you have an Intel IXP2000 (2400, 2800, 2850) based
system and are using GPIO lines for an I2C bus.
This support is also available as a module. If so, the module
@@ -354,7 +357,7 @@
on the parport driver. This is meant for embedded systems. Don't say
Y here if you intend to say Y or M there.
- This support is also available as a module. If so, the module
+ This support is also available as a module. If so, the module
will be called i2c-parport.
config I2C_PARPORT_LIGHT
@@ -372,12 +375,12 @@
the clean but heavy parport handling is not an option. The
drawback is a reduced portability and the impossibility to
daisy-chain other parallel port devices.
-
+
Don't say Y here if you said Y or M to i2c-parport. Saying M to
both is possible but both modules should not be loaded at the same
time.
- This support is also available as a module. If so, the module
+ This support is also available as a module. If so, the module
will be called i2c-parport-light.
config I2C_PASEMI
@@ -401,7 +404,7 @@
This driver is deprecated in favor of the savagefb driver.
- This support is also available as a module. If so, the module
+ This support is also available as a module. If so, the module
will be called i2c-prosavage.
config I2C_S3C2410
@@ -417,7 +420,7 @@
depends on PCI
select I2C_ALGOBIT
help
- If you say yes to this option, support will be included for the
+ If you say yes to this option, support will be included for the
S3 Savage 4 I2C interface.
This driver is deprecated in favor of the savagefb driver.
@@ -452,7 +455,7 @@
If you don't know what to do here, say N.
- This support is also available as a module. If so, the module
+ This support is also available as a module. If so, the module
will be called scx200_i2c.
This driver is deprecated and will be dropped soon. Use i2c-gpio
@@ -483,14 +486,14 @@
If you don't know what to do here, say N.
- This support is also available as a module. If so, the module
+ This support is also available as a module. If so, the module
will be called scx200_acb.
config I2C_SIS5595
tristate "SiS 5595"
depends on PCI
help
- If you say yes to this option, support will be included for the
+ If you say yes to this option, support will be included for the
SiS5595 SMBus (a subset of I2C) interface.
This driver can also be built as a module. If so, the module
@@ -500,7 +503,7 @@
tristate "SiS 630/730"
depends on PCI
help
- If you say yes to this option, support will be included for the
+ If you say yes to this option, support will be included for the
SiS630 and SiS730 SMBus (a subset of I2C) interface.
This driver can also be built as a module. If so, the module
@@ -632,9 +635,9 @@
select I2C_ALGOPCA
default n
help
- This driver supports ISA boards using the Philips PCA 9564
- Parallel bus to I2C bus controller
-
+ This driver supports ISA boards using the Philips PCA9564
+ parallel bus to I2C bus controller.
+
This driver can also be built as a module. If so, the module
will be called i2c-pca-isa.
@@ -643,6 +646,17 @@
delays when I2C/SMBus chip drivers are loaded (e.g. at boot
time). If unsure, say N.
+config I2C_PCA_PLATFORM
+ tristate "PCA9564 as platform device"
+ select I2C_ALGOPCA
+ default n
+ help
+ This driver supports a memory mapped Philips PCA9564
+ parallel bus to I2C bus controller.
+
+ This driver can also be built as a module. If so, the module
+ will be called i2c-pca-platform.
+
config I2C_MV64XXX
tristate "Marvell mv64xxx I2C Controller"
depends on (MV64X60 || PLAT_ORION) && EXPERIMENTAL
@@ -672,4 +686,23 @@
This driver can also be built as module. If so, the module
will be called i2c-pmcmsp.
+config I2C_SH7760
+ tristate "Renesas SH7760 I2C Controller"
+ depends on CPU_SUBTYPE_SH7760
+ help
+ This driver supports the 2 I2C interfaces on the Renesas SH7760.
+
+ This driver can also be built as a module. If so, the module
+ will be called i2c-sh7760.
+
+config I2C_SH_MOBILE
+ tristate "SuperH Mobile I2C Controller"
+ depends on SUPERH
+ help
+ If you say yes to this option, support will be included for the
+ built-in I2C interface on the Renesas SH-Mobile processor.
+
+ This driver can also be built as a module. If so, the module
+ will be called i2c-sh_mobile.
+
endmenu
diff --git a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile
index ea7068f..e8c882a 100644
--- a/drivers/i2c/busses/Makefile
+++ b/drivers/i2c/busses/Makefile
@@ -30,6 +30,7 @@
obj-$(CONFIG_I2C_PARPORT_LIGHT) += i2c-parport-light.o
obj-$(CONFIG_I2C_PASEMI) += i2c-pasemi.o
obj-$(CONFIG_I2C_PCA_ISA) += i2c-pca-isa.o
+obj-$(CONFIG_I2C_PCA_PLATFORM) += i2c-pca-platform.o
obj-$(CONFIG_I2C_PIIX4) += i2c-piix4.o
obj-$(CONFIG_I2C_PMCMSP) += i2c-pmcmsp.o
obj-$(CONFIG_I2C_PNX) += i2c-pnx.o
@@ -37,6 +38,8 @@
obj-$(CONFIG_I2C_PXA) += i2c-pxa.o
obj-$(CONFIG_I2C_S3C2410) += i2c-s3c2410.o
obj-$(CONFIG_I2C_SAVAGE4) += i2c-savage4.o
+obj-$(CONFIG_I2C_SH7760) += i2c-sh7760.o
+obj-$(CONFIG_I2C_SH_MOBILE) += i2c-sh_mobile.o
obj-$(CONFIG_I2C_SIBYTE) += i2c-sibyte.o
obj-$(CONFIG_I2C_SIMTEC) += i2c-simtec.o
obj-$(CONFIG_I2C_SIS5595) += i2c-sis5595.o
diff --git a/drivers/i2c/busses/i2c-at91.c b/drivers/i2c/busses/i2c-at91.c
index c09b036..73d6194 100644
--- a/drivers/i2c/busses/i2c-at91.c
+++ b/drivers/i2c/busses/i2c-at91.c
@@ -298,7 +298,7 @@
#endif
/* work with "modprobe at91_i2c" from hotplugging or coldplugging */
-MODULE_ALIAS("at91_i2c");
+MODULE_ALIAS("platform:at91_i2c");
static struct platform_driver at91_i2c_driver = {
.probe = at91_i2c_probe,
diff --git a/drivers/i2c/busses/i2c-au1550.c b/drivers/i2c/busses/i2c-au1550.c
index 1953b26..491718f 100644
--- a/drivers/i2c/busses/i2c-au1550.c
+++ b/drivers/i2c/busses/i2c-au1550.c
@@ -472,6 +472,7 @@
MODULE_AUTHOR("Dan Malek, Embedded Edge, LLC.");
MODULE_DESCRIPTION("SMBus adapter Alchemy pb1550");
MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:au1xpsc_smbus");
module_init (i2c_au1550_init);
module_exit (i2c_au1550_exit);
diff --git a/drivers/i2c/busses/i2c-bfin-twi.c b/drivers/i2c/busses/i2c-bfin-twi.c
index 7dbdaeb..48d084b 100644
--- a/drivers/i2c/busses/i2c-bfin-twi.c
+++ b/drivers/i2c/busses/i2c-bfin-twi.c
@@ -1,25 +1,11 @@
/*
- * drivers/i2c/busses/i2c-bfin-twi.c
+ * Blackfin On-Chip Two Wire Interface Driver
*
- * Description: Driver for Blackfin Two Wire Interface
+ * Copyright 2005-2007 Analog Devices Inc.
*
- * Author: sonicz <sonic.zhang@analog.com>
+ * Enter bugs at http://blackfin.uclinux.org/
*
- * Copyright (c) 2005-2007 Analog Devices, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * Licensed under the GPL-2 or later.
*/
#include <linux/module.h>
@@ -34,14 +20,16 @@
#include <linux/platform_device.h>
#include <asm/blackfin.h>
+#include <asm/portmux.h>
#include <asm/irq.h>
#define POLL_TIMEOUT (2 * HZ)
/* SMBus mode*/
-#define TWI_I2C_MODE_STANDARD 0x01
-#define TWI_I2C_MODE_STANDARDSUB 0x02
-#define TWI_I2C_MODE_COMBINED 0x04
+#define TWI_I2C_MODE_STANDARD 1
+#define TWI_I2C_MODE_STANDARDSUB 2
+#define TWI_I2C_MODE_COMBINED 3
+#define TWI_I2C_MODE_REPEAT 4
struct bfin_twi_iface {
int irq;
@@ -58,39 +46,74 @@
struct timer_list timeout_timer;
struct i2c_adapter adap;
struct completion complete;
+ struct i2c_msg *pmsg;
+ int msg_num;
+ int cur_msg;
+ void __iomem *regs_base;
};
-static struct bfin_twi_iface twi_iface;
+
+#define DEFINE_TWI_REG(reg, off) \
+static inline u16 read_##reg(struct bfin_twi_iface *iface) \
+ { return bfin_read16(iface->regs_base + (off)); } \
+static inline void write_##reg(struct bfin_twi_iface *iface, u16 v) \
+ { bfin_write16(iface->regs_base + (off), v); }
+
+DEFINE_TWI_REG(CLKDIV, 0x00)
+DEFINE_TWI_REG(CONTROL, 0x04)
+DEFINE_TWI_REG(SLAVE_CTL, 0x08)
+DEFINE_TWI_REG(SLAVE_STAT, 0x0C)
+DEFINE_TWI_REG(SLAVE_ADDR, 0x10)
+DEFINE_TWI_REG(MASTER_CTL, 0x14)
+DEFINE_TWI_REG(MASTER_STAT, 0x18)
+DEFINE_TWI_REG(MASTER_ADDR, 0x1C)
+DEFINE_TWI_REG(INT_STAT, 0x20)
+DEFINE_TWI_REG(INT_MASK, 0x24)
+DEFINE_TWI_REG(FIFO_CTL, 0x28)
+DEFINE_TWI_REG(FIFO_STAT, 0x2C)
+DEFINE_TWI_REG(XMT_DATA8, 0x80)
+DEFINE_TWI_REG(XMT_DATA16, 0x84)
+DEFINE_TWI_REG(RCV_DATA8, 0x88)
+DEFINE_TWI_REG(RCV_DATA16, 0x8C)
+
+static const u16 pin_req[2][3] = {
+ {P_TWI0_SCL, P_TWI0_SDA, 0},
+ {P_TWI1_SCL, P_TWI1_SDA, 0},
+};
static void bfin_twi_handle_interrupt(struct bfin_twi_iface *iface)
{
- unsigned short twi_int_status = bfin_read_TWI_INT_STAT();
- unsigned short mast_stat = bfin_read_TWI_MASTER_STAT();
+ unsigned short twi_int_status = read_INT_STAT(iface);
+ unsigned short mast_stat = read_MASTER_STAT(iface);
if (twi_int_status & XMTSERV) {
/* Transmit next data */
if (iface->writeNum > 0) {
- bfin_write_TWI_XMT_DATA8(*(iface->transPtr++));
+ write_XMT_DATA8(iface, *(iface->transPtr++));
iface->writeNum--;
}
/* start receive immediately after complete sending in
* combine mode.
*/
- else if (iface->cur_mode == TWI_I2C_MODE_COMBINED) {
- bfin_write_TWI_MASTER_CTL(bfin_read_TWI_MASTER_CTL()
- | MDIR | RSTART);
- } else if (iface->manual_stop)
- bfin_write_TWI_MASTER_CTL(bfin_read_TWI_MASTER_CTL()
- | STOP);
+ else if (iface->cur_mode == TWI_I2C_MODE_COMBINED)
+ write_MASTER_CTL(iface,
+ read_MASTER_CTL(iface) | MDIR | RSTART);
+ else if (iface->manual_stop)
+ write_MASTER_CTL(iface,
+ read_MASTER_CTL(iface) | STOP);
+ else if (iface->cur_mode == TWI_I2C_MODE_REPEAT &&
+ iface->cur_msg+1 < iface->msg_num)
+ write_MASTER_CTL(iface,
+ read_MASTER_CTL(iface) | RSTART);
SSYNC();
/* Clear status */
- bfin_write_TWI_INT_STAT(XMTSERV);
+ write_INT_STAT(iface, XMTSERV);
SSYNC();
}
if (twi_int_status & RCVSERV) {
if (iface->readNum > 0) {
/* Receive next data */
- *(iface->transPtr) = bfin_read_TWI_RCV_DATA8();
+ *(iface->transPtr) = read_RCV_DATA8(iface);
if (iface->cur_mode == TWI_I2C_MODE_COMBINED) {
/* Change combine mode into sub mode after
* read first data.
@@ -105,28 +128,33 @@
iface->transPtr++;
iface->readNum--;
} else if (iface->manual_stop) {
- bfin_write_TWI_MASTER_CTL(bfin_read_TWI_MASTER_CTL()
- | STOP);
+ write_MASTER_CTL(iface,
+ read_MASTER_CTL(iface) | STOP);
+ SSYNC();
+ } else if (iface->cur_mode == TWI_I2C_MODE_REPEAT &&
+ iface->cur_msg+1 < iface->msg_num) {
+ write_MASTER_CTL(iface,
+ read_MASTER_CTL(iface) | RSTART);
SSYNC();
}
/* Clear interrupt source */
- bfin_write_TWI_INT_STAT(RCVSERV);
+ write_INT_STAT(iface, RCVSERV);
SSYNC();
}
if (twi_int_status & MERR) {
- bfin_write_TWI_INT_STAT(MERR);
- bfin_write_TWI_INT_MASK(0);
- bfin_write_TWI_MASTER_STAT(0x3e);
- bfin_write_TWI_MASTER_CTL(0);
+ write_INT_STAT(iface, MERR);
+ write_INT_MASK(iface, 0);
+ write_MASTER_STAT(iface, 0x3e);
+ write_MASTER_CTL(iface, 0);
SSYNC();
- iface->result = -1;
+ iface->result = -EIO;
/* if both err and complete int stats are set, return proper
* results.
*/
if (twi_int_status & MCOMP) {
- bfin_write_TWI_INT_STAT(MCOMP);
- bfin_write_TWI_INT_MASK(0);
- bfin_write_TWI_MASTER_CTL(0);
+ write_INT_STAT(iface, MCOMP);
+ write_INT_MASK(iface, 0);
+ write_MASTER_CTL(iface, 0);
SSYNC();
/* If it is a quick transfer, only address bug no data,
* not an err, return 1.
@@ -143,7 +171,7 @@
return;
}
if (twi_int_status & MCOMP) {
- bfin_write_TWI_INT_STAT(MCOMP);
+ write_INT_STAT(iface, MCOMP);
SSYNC();
if (iface->cur_mode == TWI_I2C_MODE_COMBINED) {
if (iface->readNum == 0) {
@@ -152,28 +180,63 @@
*/
iface->readNum = 1;
iface->manual_stop = 1;
- bfin_write_TWI_MASTER_CTL(
- bfin_read_TWI_MASTER_CTL()
- | (0xff << 6));
+ write_MASTER_CTL(iface,
+ read_MASTER_CTL(iface) | (0xff << 6));
} else {
/* set the readd number in other
* combine mode.
*/
- bfin_write_TWI_MASTER_CTL(
- (bfin_read_TWI_MASTER_CTL() &
+ write_MASTER_CTL(iface,
+ (read_MASTER_CTL(iface) &
(~(0xff << 6))) |
- ( iface->readNum << 6));
+ (iface->readNum << 6));
}
/* remove restart bit and enable master receive */
- bfin_write_TWI_MASTER_CTL(bfin_read_TWI_MASTER_CTL() &
- ~RSTART);
- bfin_write_TWI_MASTER_CTL(bfin_read_TWI_MASTER_CTL() |
- MEN | MDIR);
+ write_MASTER_CTL(iface,
+ read_MASTER_CTL(iface) & ~RSTART);
+ write_MASTER_CTL(iface,
+ read_MASTER_CTL(iface) | MEN | MDIR);
+ SSYNC();
+ } else if (iface->cur_mode == TWI_I2C_MODE_REPEAT &&
+ iface->cur_msg+1 < iface->msg_num) {
+ iface->cur_msg++;
+ iface->transPtr = iface->pmsg[iface->cur_msg].buf;
+ iface->writeNum = iface->readNum =
+ iface->pmsg[iface->cur_msg].len;
+ /* Set Transmit device address */
+ write_MASTER_ADDR(iface,
+ iface->pmsg[iface->cur_msg].addr);
+ if (iface->pmsg[iface->cur_msg].flags & I2C_M_RD)
+ iface->read_write = I2C_SMBUS_READ;
+ else {
+ iface->read_write = I2C_SMBUS_WRITE;
+ /* Transmit first data */
+ if (iface->writeNum > 0) {
+ write_XMT_DATA8(iface,
+ *(iface->transPtr++));
+ iface->writeNum--;
+ SSYNC();
+ }
+ }
+
+ if (iface->pmsg[iface->cur_msg].len <= 255)
+ write_MASTER_CTL(iface,
+ iface->pmsg[iface->cur_msg].len << 6);
+ else {
+ write_MASTER_CTL(iface, 0xff << 6);
+ iface->manual_stop = 1;
+ }
+ /* remove restart bit and enable master receive */
+ write_MASTER_CTL(iface,
+ read_MASTER_CTL(iface) & ~RSTART);
+ write_MASTER_CTL(iface, read_MASTER_CTL(iface) |
+ MEN | ((iface->read_write == I2C_SMBUS_READ) ?
+ MDIR : 0));
SSYNC();
} else {
iface->result = 1;
- bfin_write_TWI_INT_MASK(0);
- bfin_write_TWI_MASTER_CTL(0);
+ write_INT_MASK(iface, 0);
+ write_MASTER_CTL(iface, 0);
SSYNC();
complete(&iface->complete);
}
@@ -221,91 +284,85 @@
{
struct bfin_twi_iface *iface = adap->algo_data;
struct i2c_msg *pmsg;
- int i, ret;
int rc = 0;
- if (!(bfin_read_TWI_CONTROL() & TWI_ENA))
+ if (!(read_CONTROL(iface) & TWI_ENA))
return -ENXIO;
- while (bfin_read_TWI_MASTER_STAT() & BUSBUSY) {
+ while (read_MASTER_STAT(iface) & BUSBUSY)
yield();
+
+ iface->pmsg = msgs;
+ iface->msg_num = num;
+ iface->cur_msg = 0;
+
+ pmsg = &msgs[0];
+ if (pmsg->flags & I2C_M_TEN) {
+ dev_err(&adap->dev, "10 bits addr not supported!\n");
+ return -EINVAL;
}
- ret = 0;
- for (i = 0; rc >= 0 && i < num; i++) {
- pmsg = &msgs[i];
- if (pmsg->flags & I2C_M_TEN) {
- dev_err(&(adap->dev), "i2c-bfin-twi: 10 bits addr "
- "not supported !\n");
- rc = -EINVAL;
- break;
+ iface->cur_mode = TWI_I2C_MODE_REPEAT;
+ iface->manual_stop = 0;
+ iface->transPtr = pmsg->buf;
+ iface->writeNum = iface->readNum = pmsg->len;
+ iface->result = 0;
+ iface->timeout_count = 10;
+ init_completion(&(iface->complete));
+ /* Set Transmit device address */
+ write_MASTER_ADDR(iface, pmsg->addr);
+
+ /* FIFO Initiation. Data in FIFO should be
+ * discarded before start a new operation.
+ */
+ write_FIFO_CTL(iface, 0x3);
+ SSYNC();
+ write_FIFO_CTL(iface, 0);
+ SSYNC();
+
+ if (pmsg->flags & I2C_M_RD)
+ iface->read_write = I2C_SMBUS_READ;
+ else {
+ iface->read_write = I2C_SMBUS_WRITE;
+ /* Transmit first data */
+ if (iface->writeNum > 0) {
+ write_XMT_DATA8(iface, *(iface->transPtr++));
+ iface->writeNum--;
+ SSYNC();
}
-
- iface->cur_mode = TWI_I2C_MODE_STANDARD;
- iface->manual_stop = 0;
- iface->transPtr = pmsg->buf;
- iface->writeNum = iface->readNum = pmsg->len;
- iface->result = 0;
- iface->timeout_count = 10;
- /* Set Transmit device address */
- bfin_write_TWI_MASTER_ADDR(pmsg->addr);
-
- /* FIFO Initiation. Data in FIFO should be
- * discarded before start a new operation.
- */
- bfin_write_TWI_FIFO_CTL(0x3);
- SSYNC();
- bfin_write_TWI_FIFO_CTL(0);
- SSYNC();
-
- if (pmsg->flags & I2C_M_RD)
- iface->read_write = I2C_SMBUS_READ;
- else {
- iface->read_write = I2C_SMBUS_WRITE;
- /* Transmit first data */
- if (iface->writeNum > 0) {
- bfin_write_TWI_XMT_DATA8(*(iface->transPtr++));
- iface->writeNum--;
- SSYNC();
- }
- }
-
- /* clear int stat */
- bfin_write_TWI_INT_STAT(MERR|MCOMP|XMTSERV|RCVSERV);
-
- /* Interrupt mask . Enable XMT, RCV interrupt */
- bfin_write_TWI_INT_MASK(MCOMP | MERR |
- ((iface->read_write == I2C_SMBUS_READ)?
- RCVSERV : XMTSERV));
- SSYNC();
-
- if (pmsg->len > 0 && pmsg->len <= 255)
- bfin_write_TWI_MASTER_CTL(pmsg->len << 6);
- else if (pmsg->len > 255) {
- bfin_write_TWI_MASTER_CTL(0xff << 6);
- iface->manual_stop = 1;
- } else
- break;
-
- iface->timeout_timer.expires = jiffies + POLL_TIMEOUT;
- add_timer(&iface->timeout_timer);
-
- /* Master enable */
- bfin_write_TWI_MASTER_CTL(bfin_read_TWI_MASTER_CTL() | MEN |
- ((iface->read_write == I2C_SMBUS_READ) ? MDIR : 0) |
- ((CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ>100) ? FAST : 0));
- SSYNC();
-
- wait_for_completion(&iface->complete);
-
- rc = iface->result;
- if (rc == 1)
- ret++;
- else if (rc == -1)
- break;
}
- return ret;
+ /* clear int stat */
+ write_INT_STAT(iface, MERR | MCOMP | XMTSERV | RCVSERV);
+
+ /* Interrupt mask . Enable XMT, RCV interrupt */
+ write_INT_MASK(iface, MCOMP | MERR | RCVSERV | XMTSERV);
+ SSYNC();
+
+ if (pmsg->len <= 255)
+ write_MASTER_CTL(iface, pmsg->len << 6);
+ else {
+ write_MASTER_CTL(iface, 0xff << 6);
+ iface->manual_stop = 1;
+ }
+
+ iface->timeout_timer.expires = jiffies + POLL_TIMEOUT;
+ add_timer(&iface->timeout_timer);
+
+ /* Master enable */
+ write_MASTER_CTL(iface, read_MASTER_CTL(iface) | MEN |
+ ((iface->read_write == I2C_SMBUS_READ) ? MDIR : 0) |
+ ((CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ > 100) ? FAST : 0));
+ SSYNC();
+
+ wait_for_completion(&iface->complete);
+
+ rc = iface->result;
+
+ if (rc == 1)
+ return num;
+ else
+ return rc;
}
/*
@@ -319,12 +376,11 @@
struct bfin_twi_iface *iface = adap->algo_data;
int rc = 0;
- if (!(bfin_read_TWI_CONTROL() & TWI_ENA))
+ if (!(read_CONTROL(iface) & TWI_ENA))
return -ENXIO;
- while (bfin_read_TWI_MASTER_STAT() & BUSBUSY) {
+ while (read_MASTER_STAT(iface) & BUSBUSY)
yield();
- }
iface->writeNum = 0;
iface->readNum = 0;
@@ -392,19 +448,20 @@
iface->read_write = read_write;
iface->command = command;
iface->timeout_count = 10;
+ init_completion(&(iface->complete));
/* FIFO Initiation. Data in FIFO should be discarded before
* start a new operation.
*/
- bfin_write_TWI_FIFO_CTL(0x3);
+ write_FIFO_CTL(iface, 0x3);
SSYNC();
- bfin_write_TWI_FIFO_CTL(0);
+ write_FIFO_CTL(iface, 0);
/* clear int stat */
- bfin_write_TWI_INT_STAT(MERR|MCOMP|XMTSERV|RCVSERV);
+ write_INT_STAT(iface, MERR | MCOMP | XMTSERV | RCVSERV);
/* Set Transmit device address */
- bfin_write_TWI_MASTER_ADDR(addr);
+ write_MASTER_ADDR(iface, addr);
SSYNC();
iface->timeout_timer.expires = jiffies + POLL_TIMEOUT;
@@ -412,60 +469,64 @@
switch (iface->cur_mode) {
case TWI_I2C_MODE_STANDARDSUB:
- bfin_write_TWI_XMT_DATA8(iface->command);
- bfin_write_TWI_INT_MASK(MCOMP | MERR |
+ write_XMT_DATA8(iface, iface->command);
+ write_INT_MASK(iface, MCOMP | MERR |
((iface->read_write == I2C_SMBUS_READ) ?
RCVSERV : XMTSERV));
SSYNC();
if (iface->writeNum + 1 <= 255)
- bfin_write_TWI_MASTER_CTL((iface->writeNum + 1) << 6);
+ write_MASTER_CTL(iface, (iface->writeNum + 1) << 6);
else {
- bfin_write_TWI_MASTER_CTL(0xff << 6);
+ write_MASTER_CTL(iface, 0xff << 6);
iface->manual_stop = 1;
}
/* Master enable */
- bfin_write_TWI_MASTER_CTL(bfin_read_TWI_MASTER_CTL() | MEN |
+ write_MASTER_CTL(iface, read_MASTER_CTL(iface) | MEN |
((CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ>100) ? FAST : 0));
break;
case TWI_I2C_MODE_COMBINED:
- bfin_write_TWI_XMT_DATA8(iface->command);
- bfin_write_TWI_INT_MASK(MCOMP | MERR | RCVSERV | XMTSERV);
+ write_XMT_DATA8(iface, iface->command);
+ write_INT_MASK(iface, MCOMP | MERR | RCVSERV | XMTSERV);
SSYNC();
if (iface->writeNum > 0)
- bfin_write_TWI_MASTER_CTL((iface->writeNum + 1) << 6);
+ write_MASTER_CTL(iface, (iface->writeNum + 1) << 6);
else
- bfin_write_TWI_MASTER_CTL(0x1 << 6);
+ write_MASTER_CTL(iface, 0x1 << 6);
/* Master enable */
- bfin_write_TWI_MASTER_CTL(bfin_read_TWI_MASTER_CTL() | MEN |
+ write_MASTER_CTL(iface, read_MASTER_CTL(iface) | MEN |
((CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ>100) ? FAST : 0));
break;
default:
- bfin_write_TWI_MASTER_CTL(0);
+ write_MASTER_CTL(iface, 0);
if (size != I2C_SMBUS_QUICK) {
/* Don't access xmit data register when this is a
* read operation.
*/
if (iface->read_write != I2C_SMBUS_READ) {
if (iface->writeNum > 0) {
- bfin_write_TWI_XMT_DATA8(*(iface->transPtr++));
+ write_XMT_DATA8(iface,
+ *(iface->transPtr++));
if (iface->writeNum <= 255)
- bfin_write_TWI_MASTER_CTL(iface->writeNum << 6);
+ write_MASTER_CTL(iface,
+ iface->writeNum << 6);
else {
- bfin_write_TWI_MASTER_CTL(0xff << 6);
+ write_MASTER_CTL(iface,
+ 0xff << 6);
iface->manual_stop = 1;
}
iface->writeNum--;
} else {
- bfin_write_TWI_XMT_DATA8(iface->command);
- bfin_write_TWI_MASTER_CTL(1 << 6);
+ write_XMT_DATA8(iface, iface->command);
+ write_MASTER_CTL(iface, 1 << 6);
}
} else {
if (iface->readNum > 0 && iface->readNum <= 255)
- bfin_write_TWI_MASTER_CTL(iface->readNum << 6);
+ write_MASTER_CTL(iface,
+ iface->readNum << 6);
else if (iface->readNum > 255) {
- bfin_write_TWI_MASTER_CTL(0xff << 6);
+ write_MASTER_CTL(iface, 0xff << 6);
iface->manual_stop = 1;
} else {
del_timer(&iface->timeout_timer);
@@ -473,13 +534,13 @@
}
}
}
- bfin_write_TWI_INT_MASK(MCOMP | MERR |
+ write_INT_MASK(iface, MCOMP | MERR |
((iface->read_write == I2C_SMBUS_READ) ?
RCVSERV : XMTSERV));
SSYNC();
/* Master enable */
- bfin_write_TWI_MASTER_CTL(bfin_read_TWI_MASTER_CTL() | MEN |
+ write_MASTER_CTL(iface, read_MASTER_CTL(iface) | MEN |
((iface->read_write == I2C_SMBUS_READ) ? MDIR : 0) |
((CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ > 100) ? FAST : 0));
break;
@@ -514,10 +575,10 @@
static int i2c_bfin_twi_suspend(struct platform_device *dev, pm_message_t state)
{
-/* struct bfin_twi_iface *iface = platform_get_drvdata(dev);*/
+ struct bfin_twi_iface *iface = platform_get_drvdata(dev);
/* Disable TWI */
- bfin_write_TWI_CONTROL(bfin_read_TWI_CONTROL() & ~TWI_ENA);
+ write_CONTROL(iface, read_CONTROL(iface) & ~TWI_ENA);
SSYNC();
return 0;
@@ -525,24 +586,52 @@
static int i2c_bfin_twi_resume(struct platform_device *dev)
{
-/* struct bfin_twi_iface *iface = platform_get_drvdata(dev);*/
+ struct bfin_twi_iface *iface = platform_get_drvdata(dev);
/* Enable TWI */
- bfin_write_TWI_CONTROL(bfin_read_TWI_CONTROL() | TWI_ENA);
+ write_CONTROL(iface, read_CONTROL(iface) | TWI_ENA);
SSYNC();
return 0;
}
-static int i2c_bfin_twi_probe(struct platform_device *dev)
+static int i2c_bfin_twi_probe(struct platform_device *pdev)
{
- struct bfin_twi_iface *iface = &twi_iface;
+ struct bfin_twi_iface *iface;
struct i2c_adapter *p_adap;
+ struct resource *res;
int rc;
+ iface = kzalloc(sizeof(struct bfin_twi_iface), GFP_KERNEL);
+ if (!iface) {
+ dev_err(&pdev->dev, "Cannot allocate memory\n");
+ rc = -ENOMEM;
+ goto out_error_nomem;
+ }
+
spin_lock_init(&(iface->lock));
- init_completion(&(iface->complete));
- iface->irq = IRQ_TWI;
+
+ /* Find and map our resources */
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (res == NULL) {
+ dev_err(&pdev->dev, "Cannot get IORESOURCE_MEM\n");
+ rc = -ENOENT;
+ goto out_error_get_res;
+ }
+
+ iface->regs_base = ioremap(res->start, res->end - res->start + 1);
+ if (iface->regs_base == NULL) {
+ dev_err(&pdev->dev, "Cannot map IO\n");
+ rc = -ENXIO;
+ goto out_error_ioremap;
+ }
+
+ iface->irq = platform_get_irq(pdev, 0);
+ if (iface->irq < 0) {
+ dev_err(&pdev->dev, "No IRQ specified\n");
+ rc = -ENOENT;
+ goto out_error_no_irq;
+ }
init_timer(&(iface->timeout_timer));
iface->timeout_timer.function = bfin_twi_timeout;
@@ -550,39 +639,63 @@
p_adap = &iface->adap;
p_adap->id = I2C_HW_BLACKFIN;
- p_adap->nr = dev->id;
- strlcpy(p_adap->name, dev->name, sizeof(p_adap->name));
+ p_adap->nr = pdev->id;
+ strlcpy(p_adap->name, pdev->name, sizeof(p_adap->name));
p_adap->algo = &bfin_twi_algorithm;
p_adap->algo_data = iface;
p_adap->class = I2C_CLASS_ALL;
- p_adap->dev.parent = &dev->dev;
+ p_adap->dev.parent = &pdev->dev;
+
+ rc = peripheral_request_list(pin_req[pdev->id], "i2c-bfin-twi");
+ if (rc) {
+ dev_err(&pdev->dev, "Can't setup pin mux!\n");
+ goto out_error_pin_mux;
+ }
rc = request_irq(iface->irq, bfin_twi_interrupt_entry,
- IRQF_DISABLED, dev->name, iface);
+ IRQF_DISABLED, pdev->name, iface);
if (rc) {
- dev_err(&(p_adap->dev), "i2c-bfin-twi: can't get IRQ %d !\n",
- iface->irq);
- return -ENODEV;
+ dev_err(&pdev->dev, "Can't get IRQ %d !\n", iface->irq);
+ rc = -ENODEV;
+ goto out_error_req_irq;
}
/* Set TWI internal clock as 10MHz */
- bfin_write_TWI_CONTROL(((get_sclk() / 1024 / 1024 + 5) / 10) & 0x7F);
+ write_CONTROL(iface, ((get_sclk() / 1024 / 1024 + 5) / 10) & 0x7F);
/* Set Twi interface clock as specified */
- bfin_write_TWI_CLKDIV((( 5*1024 / CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ )
- << 8) | (( 5*1024 / CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ )
+ write_CLKDIV(iface, ((5*1024 / CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ)
+ << 8) | ((5*1024 / CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ)
& 0xFF));
/* Enable TWI */
- bfin_write_TWI_CONTROL(bfin_read_TWI_CONTROL() | TWI_ENA);
+ write_CONTROL(iface, read_CONTROL(iface) | TWI_ENA);
SSYNC();
rc = i2c_add_numbered_adapter(p_adap);
- if (rc < 0)
- free_irq(iface->irq, iface);
- else
- platform_set_drvdata(dev, iface);
+ if (rc < 0) {
+ dev_err(&pdev->dev, "Can't add i2c adapter!\n");
+ goto out_error_add_adapter;
+ }
+ platform_set_drvdata(pdev, iface);
+
+ dev_info(&pdev->dev, "Blackfin BF5xx on-chip I2C TWI Contoller, "
+ "regs_base@%p\n", iface->regs_base);
+
+ return 0;
+
+out_error_add_adapter:
+ free_irq(iface->irq, iface);
+out_error_req_irq:
+out_error_no_irq:
+ peripheral_free_list(pin_req[pdev->id]);
+out_error_pin_mux:
+ iounmap(iface->regs_base);
+out_error_ioremap:
+out_error_get_res:
+ kfree(iface);
+out_error_nomem:
return rc;
}
@@ -594,6 +707,9 @@
i2c_del_adapter(&(iface->adap));
free_irq(iface->irq, iface);
+ peripheral_free_list(pin_req[pdev->id]);
+ iounmap(iface->regs_base);
+ kfree(iface);
return 0;
}
@@ -611,8 +727,6 @@
static int __init i2c_bfin_twi_init(void)
{
- pr_info("I2C: Blackfin I2C TWI driver\n");
-
return platform_driver_register(&i2c_bfin_twi_driver);
}
@@ -621,9 +735,10 @@
platform_driver_unregister(&i2c_bfin_twi_driver);
}
-MODULE_AUTHOR("Sonic Zhang <sonic.zhang@analog.com>");
-MODULE_DESCRIPTION("I2C-Bus adapter routines for Blackfin TWI");
-MODULE_LICENSE("GPL");
-
module_init(i2c_bfin_twi_init);
module_exit(i2c_bfin_twi_exit);
+
+MODULE_AUTHOR("Bryan Wu, Sonic Zhang");
+MODULE_DESCRIPTION("Blackfin BF5xx on-chip I2C TWI Contoller Driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:i2c-bfin-twi");
diff --git a/drivers/i2c/busses/i2c-davinci.c b/drivers/i2c/busses/i2c-davinci.c
index fde2634..7ecbfc4 100644
--- a/drivers/i2c/busses/i2c-davinci.c
+++ b/drivers/i2c/busses/i2c-davinci.c
@@ -328,7 +328,7 @@
int i;
int ret;
- dev_dbg(dev->dev, "%s: msgs: %d\n", __FUNCTION__, num);
+ dev_dbg(dev->dev, "%s: msgs: %d\n", __func__, num);
ret = i2c_davinci_wait_bus_not_busy(dev, 1);
if (ret < 0) {
@@ -342,7 +342,7 @@
return ret;
}
- dev_dbg(dev->dev, "%s:%d ret: %d\n", __FUNCTION__, __LINE__, ret);
+ dev_dbg(dev->dev, "%s:%d ret: %d\n", __func__, __LINE__, ret);
return num;
}
@@ -364,7 +364,7 @@
u16 w;
while ((stat = davinci_i2c_read_reg(dev, DAVINCI_I2C_IVR_REG))) {
- dev_dbg(dev->dev, "%s: stat=0x%x\n", __FUNCTION__, stat);
+ dev_dbg(dev->dev, "%s: stat=0x%x\n", __func__, stat);
if (count++ == 100) {
dev_warn(dev->dev, "Too much work in one IRQ\n");
break;
@@ -553,6 +553,9 @@
return 0;
}
+/* work with hotplug and coldplug */
+MODULE_ALIAS("platform:i2c_davinci");
+
static struct platform_driver davinci_i2c_driver = {
.probe = davinci_i2c_probe,
.remove = davinci_i2c_remove,
diff --git a/drivers/i2c/busses/i2c-gpio.c b/drivers/i2c/busses/i2c-gpio.c
index 3ca19fc..7c1b762 100644
--- a/drivers/i2c/busses/i2c-gpio.c
+++ b/drivers/i2c/busses/i2c-gpio.c
@@ -220,3 +220,4 @@
MODULE_AUTHOR("Haavard Skinnemoen <hskinnemoen@atmel.com>");
MODULE_DESCRIPTION("Platform-independent bitbanging I2C driver");
MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:i2c-gpio");
diff --git a/drivers/i2c/busses/i2c-ibm_iic.c b/drivers/i2c/busses/i2c-ibm_iic.c
index 22bb247..85dbf34 100644
--- a/drivers/i2c/busses/i2c-ibm_iic.c
+++ b/drivers/i2c/busses/i2c-ibm_iic.c
@@ -6,6 +6,9 @@
* Copyright (c) 2003, 2004 Zultys Technologies.
* Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
*
+ * Copyright (c) 2008 PIKA Technologies
+ * Sean MacLennan <smaclennan@pikatech.com>
+ *
* Based on original work by
* Ian DaSilva <idasilva@mvista.com>
* Armin Kuster <akuster@mvista.com>
@@ -39,12 +42,17 @@
#include <asm/io.h>
#include <linux/i2c.h>
#include <linux/i2c-id.h>
+
+#ifdef CONFIG_IBM_OCP
#include <asm/ocp.h>
#include <asm/ibm4xx.h>
+#else
+#include <linux/of_platform.h>
+#endif
#include "i2c-ibm_iic.h"
-#define DRIVER_VERSION "2.1"
+#define DRIVER_VERSION "2.2"
MODULE_DESCRIPTION("IBM IIC driver v" DRIVER_VERSION);
MODULE_LICENSE("GPL");
@@ -650,13 +658,14 @@
opb /= 1000000;
if (opb < 20 || opb > 150){
- printk(KERN_CRIT "ibm-iic: invalid OPB clock frequency %u MHz\n",
+ printk(KERN_WARNING "ibm-iic: invalid OPB clock frequency %u MHz\n",
opb);
opb = opb < 20 ? 20 : 150;
}
return (u8)((opb + 9) / 10 - 1);
}
+#ifdef CONFIG_IBM_OCP
/*
* Register single IIC interface
*/
@@ -672,7 +681,7 @@
ocp->def->index);
if (!(dev = kzalloc(sizeof(*dev), GFP_KERNEL))) {
- printk(KERN_CRIT "ibm-iic%d: failed to allocate device data\n",
+ printk(KERN_ERR "ibm-iic%d: failed to allocate device data\n",
ocp->def->index);
return -ENOMEM;
}
@@ -687,7 +696,7 @@
}
if (!(dev->vaddr = ioremap(ocp->def->paddr, sizeof(struct iic_regs)))){
- printk(KERN_CRIT "ibm-iic%d: failed to ioremap device registers\n",
+ printk(KERN_ERR "ibm-iic%d: failed to ioremap device registers\n",
dev->idx);
ret = -ENXIO;
goto fail2;
@@ -745,7 +754,7 @@
adap->nr = dev->idx >= 0 ? dev->idx : 0;
if ((ret = i2c_add_numbered_adapter(adap)) < 0) {
- printk(KERN_CRIT "ibm-iic%d: failed to register i2c adapter\n",
+ printk(KERN_ERR "ibm-iic%d: failed to register i2c adapter\n",
dev->idx);
goto fail;
}
@@ -778,7 +787,7 @@
struct ibm_iic_private* dev = (struct ibm_iic_private*)ocp_get_drvdata(ocp);
BUG_ON(dev == NULL);
if (i2c_del_adapter(&dev->adap)){
- printk(KERN_CRIT "ibm-iic%d: failed to delete i2c adapter :(\n",
+ printk(KERN_ERR "ibm-iic%d: failed to delete i2c adapter :(\n",
dev->idx);
/* That's *very* bad, just shutdown IRQ ... */
if (dev->irq >= 0){
@@ -828,5 +837,181 @@
ocp_unregister_driver(&ibm_iic_driver);
}
+#else /* !CONFIG_IBM_OCP */
+
+static int __devinit iic_request_irq(struct of_device *ofdev,
+ struct ibm_iic_private *dev)
+{
+ struct device_node *np = ofdev->node;
+ int irq;
+
+ if (iic_force_poll)
+ return NO_IRQ;
+
+ irq = irq_of_parse_and_map(np, 0);
+ if (irq == NO_IRQ) {
+ dev_err(&ofdev->dev, "irq_of_parse_and_map failed\n");
+ return NO_IRQ;
+ }
+
+ /* Disable interrupts until we finish initialization, assumes
+ * level-sensitive IRQ setup...
+ */
+ iic_interrupt_mode(dev, 0);
+ if (request_irq(irq, iic_handler, 0, "IBM IIC", dev)) {
+ dev_err(&ofdev->dev, "request_irq %d failed\n", irq);
+ /* Fallback to the polling mode */
+ return NO_IRQ;
+ }
+
+ return irq;
+}
+
+/*
+ * Register single IIC interface
+ */
+static int __devinit iic_probe(struct of_device *ofdev,
+ const struct of_device_id *match)
+{
+ struct device_node *np = ofdev->node;
+ struct ibm_iic_private *dev;
+ struct i2c_adapter *adap;
+ const u32 *indexp, *freq;
+ int ret;
+
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+ if (!dev) {
+ dev_err(&ofdev->dev, "failed to allocate device data\n");
+ return -ENOMEM;
+ }
+
+ dev_set_drvdata(&ofdev->dev, dev);
+
+ indexp = of_get_property(np, "index", NULL);
+ if (!indexp) {
+ dev_err(&ofdev->dev, "no index specified\n");
+ ret = -EINVAL;
+ goto error_cleanup;
+ }
+ dev->idx = *indexp;
+
+ dev->vaddr = of_iomap(np, 0);
+ if (dev->vaddr == NULL) {
+ dev_err(&ofdev->dev, "failed to iomap device\n");
+ ret = -ENXIO;
+ goto error_cleanup;
+ }
+
+ init_waitqueue_head(&dev->wq);
+
+ dev->irq = iic_request_irq(ofdev, dev);
+ if (dev->irq == NO_IRQ)
+ dev_warn(&ofdev->dev, "using polling mode\n");
+
+ /* Board specific settings */
+ if (iic_force_fast || of_get_property(np, "fast-mode", NULL))
+ dev->fast_mode = 1;
+
+ freq = of_get_property(np, "clock-frequency", NULL);
+ if (freq == NULL) {
+ freq = of_get_property(np->parent, "clock-frequency", NULL);
+ if (freq == NULL) {
+ dev_err(&ofdev->dev, "Unable to get bus frequency\n");
+ ret = -EINVAL;
+ goto error_cleanup;
+ }
+ }
+
+ dev->clckdiv = iic_clckdiv(*freq);
+ dev_dbg(&ofdev->dev, "clckdiv = %d\n", dev->clckdiv);
+
+ /* Initialize IIC interface */
+ iic_dev_init(dev);
+
+ /* Register it with i2c layer */
+ adap = &dev->adap;
+ adap->dev.parent = &ofdev->dev;
+ strlcpy(adap->name, "IBM IIC", sizeof(adap->name));
+ i2c_set_adapdata(adap, dev);
+ adap->id = I2C_HW_OCP;
+ adap->class = I2C_CLASS_HWMON;
+ adap->algo = &iic_algo;
+ adap->timeout = 1;
+ adap->nr = dev->idx;
+
+ ret = i2c_add_numbered_adapter(adap);
+ if (ret < 0) {
+ dev_err(&ofdev->dev, "failed to register i2c adapter\n");
+ goto error_cleanup;
+ }
+
+ dev_info(&ofdev->dev, "using %s mode\n",
+ dev->fast_mode ? "fast (400 kHz)" : "standard (100 kHz)");
+
+ return 0;
+
+error_cleanup:
+ if (dev->irq != NO_IRQ) {
+ iic_interrupt_mode(dev, 0);
+ free_irq(dev->irq, dev);
+ }
+
+ if (dev->vaddr)
+ iounmap(dev->vaddr);
+
+ dev_set_drvdata(&ofdev->dev, NULL);
+ kfree(dev);
+ return ret;
+}
+
+/*
+ * Cleanup initialized IIC interface
+ */
+static int __devexit iic_remove(struct of_device *ofdev)
+{
+ struct ibm_iic_private *dev = dev_get_drvdata(&ofdev->dev);
+
+ dev_set_drvdata(&ofdev->dev, NULL);
+
+ i2c_del_adapter(&dev->adap);
+
+ if (dev->irq != NO_IRQ) {
+ iic_interrupt_mode(dev, 0);
+ free_irq(dev->irq, dev);
+ }
+
+ iounmap(dev->vaddr);
+ kfree(dev);
+
+ return 0;
+}
+
+static const struct of_device_id ibm_iic_match[] = {
+ { .compatible = "ibm,iic-405ex", },
+ { .compatible = "ibm,iic-405gp", },
+ { .compatible = "ibm,iic-440gp", },
+ { .compatible = "ibm,iic-440gpx", },
+ { .compatible = "ibm,iic-440grx", },
+ {}
+};
+
+static struct of_platform_driver ibm_iic_driver = {
+ .name = "ibm-iic",
+ .match_table = ibm_iic_match,
+ .probe = iic_probe,
+ .remove = __devexit_p(iic_remove),
+};
+
+static int __init iic_init(void)
+{
+ return of_register_platform_driver(&ibm_iic_driver);
+}
+
+static void __exit iic_exit(void)
+{
+ of_unregister_platform_driver(&ibm_iic_driver);
+}
+#endif /* CONFIG_IBM_OCP */
+
module_init(iic_init);
module_exit(iic_exit);
diff --git a/drivers/i2c/busses/i2c-iop3xx.c b/drivers/i2c/busses/i2c-iop3xx.c
index ab41400..39884e7 100644
--- a/drivers/i2c/busses/i2c-iop3xx.c
+++ b/drivers/i2c/busses/i2c-iop3xx.c
@@ -550,3 +550,4 @@
MODULE_AUTHOR("D-TACQ Solutions Ltd <www.d-tacq.com>");
MODULE_DESCRIPTION("IOP3xx iic algorithm and driver");
MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:IOP3xx-I2C");
diff --git a/drivers/i2c/busses/i2c-ixp2000.c b/drivers/i2c/busses/i2c-ixp2000.c
index 6352121..5af9e65 100644
--- a/drivers/i2c/busses/i2c-ixp2000.c
+++ b/drivers/i2c/busses/i2c-ixp2000.c
@@ -164,4 +164,5 @@
MODULE_AUTHOR ("Deepak Saxena <dsaxena@plexity.net>");
MODULE_DESCRIPTION("IXP2000 GPIO-based I2C bus driver");
MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:IXP2000-I2C");
diff --git a/drivers/i2c/busses/i2c-mpc.c b/drivers/i2c/busses/i2c-mpc.c
index bbe787b..18beb0a 100644
--- a/drivers/i2c/busses/i2c-mpc.c
+++ b/drivers/i2c/busses/i2c-mpc.c
@@ -392,6 +392,9 @@
return 0;
};
+/* work with hotplug and coldplug */
+MODULE_ALIAS("platform:fsl-i2c");
+
/* Structure for a device driver */
static struct platform_driver fsl_i2c_driver = {
.probe = fsl_i2c_probe,
diff --git a/drivers/i2c/busses/i2c-ocores.c b/drivers/i2c/busses/i2c-ocores.c
index e417c2c..f145692 100644
--- a/drivers/i2c/busses/i2c-ocores.c
+++ b/drivers/i2c/busses/i2c-ocores.c
@@ -312,6 +312,9 @@
return 0;
}
+/* work with hotplug and coldplug */
+MODULE_ALIAS("platform:ocores-i2c");
+
static struct platform_driver ocores_i2c_driver = {
.probe = ocores_i2c_probe,
.remove = __devexit_p(ocores_i2c_remove),
diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index 7ba3177..e7eb7bf 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -693,3 +693,4 @@
MODULE_AUTHOR("MontaVista Software, Inc. (and others)");
MODULE_DESCRIPTION("TI OMAP I2C bus adapter");
MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:i2c_omap");
diff --git a/drivers/i2c/busses/i2c-pca-isa.c b/drivers/i2c/busses/i2c-pca-isa.c
index 496ee87..a119784 100644
--- a/drivers/i2c/busses/i2c-pca-isa.c
+++ b/drivers/i2c/busses/i2c-pca-isa.c
@@ -1,6 +1,7 @@
/*
* i2c-pca-isa.c driver for PCA9564 on ISA boards
* Copyright (C) 2004 Arcom Control Systems
+ * Copyright (C) 2008 Pengutronix
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -22,11 +23,9 @@
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/delay.h>
-#include <linux/slab.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/wait.h>
-
#include <linux/isa.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-pca.h>
@@ -34,13 +33,9 @@
#include <asm/io.h>
#include <asm/irq.h>
-#include "../algos/i2c-algo-pca.h"
-
+#define DRIVER "i2c-pca-isa"
#define IO_SIZE 4
-#undef DEBUG_IO
-//#define DEBUG_IO
-
static unsigned long base = 0x330;
static int irq = 10;
@@ -48,22 +43,9 @@
* in the actual clock rate */
static int clock = I2C_PCA_CON_59kHz;
-static int own = 0x55;
-
static wait_queue_head_t pca_wait;
-static int pca_isa_getown(struct i2c_algo_pca_data *adap)
-{
- return (own);
-}
-
-static int pca_isa_getclock(struct i2c_algo_pca_data *adap)
-{
- return (clock);
-}
-
-static void
-pca_isa_writebyte(struct i2c_algo_pca_data *adap, int reg, int val)
+static void pca_isa_writebyte(void *pd, int reg, int val)
{
#ifdef DEBUG_IO
static char *names[] = { "T/O", "DAT", "ADR", "CON" };
@@ -72,44 +54,49 @@
outb(val, base+reg);
}
-static int
-pca_isa_readbyte(struct i2c_algo_pca_data *adap, int reg)
+static int pca_isa_readbyte(void *pd, int reg)
{
int res = inb(base+reg);
#ifdef DEBUG_IO
{
- static char *names[] = { "STA", "DAT", "ADR", "CON" };
+ static char *names[] = { "STA", "DAT", "ADR", "CON" };
printk("*** read %s => %#04x\n", names[reg], res);
}
#endif
return res;
}
-static int pca_isa_waitforinterrupt(struct i2c_algo_pca_data *adap)
+static int pca_isa_waitforcompletion(void *pd)
{
int ret = 0;
if (irq > -1) {
ret = wait_event_interruptible(pca_wait,
- pca_isa_readbyte(adap, I2C_PCA_CON) & I2C_PCA_CON_SI);
+ pca_isa_readbyte(pd, I2C_PCA_CON) & I2C_PCA_CON_SI);
} else {
- while ((pca_isa_readbyte(adap, I2C_PCA_CON) & I2C_PCA_CON_SI) == 0)
+ while ((pca_isa_readbyte(pd, I2C_PCA_CON) & I2C_PCA_CON_SI) == 0)
udelay(100);
}
return ret;
}
+static void pca_isa_resetchip(void *pd)
+{
+ /* apparently only an external reset will do it. not a lot can be done */
+ printk(KERN_WARNING DRIVER ": Haven't figured out how to do a reset yet\n");
+}
+
static irqreturn_t pca_handler(int this_irq, void *dev_id) {
wake_up_interruptible(&pca_wait);
return IRQ_HANDLED;
}
static struct i2c_algo_pca_data pca_isa_data = {
- .get_own = pca_isa_getown,
- .get_clock = pca_isa_getclock,
+ /* .data intentionally left NULL, not needed with ISA */
.write_byte = pca_isa_writebyte,
.read_byte = pca_isa_readbyte,
- .wait_for_interrupt = pca_isa_waitforinterrupt,
+ .wait_for_completion = pca_isa_waitforcompletion,
+ .reset_chip = pca_isa_resetchip,
};
static struct i2c_adapter pca_isa_ops = {
@@ -117,6 +104,7 @@
.id = I2C_HW_A_ISA,
.algo_data = &pca_isa_data,
.name = "PCA9564 ISA Adapter",
+ .timeout = 100,
};
static int __devinit pca_isa_probe(struct device *dev, unsigned int id)
@@ -144,6 +132,7 @@
}
}
+ pca_isa_data.i2c_clock = clock;
if (i2c_pca_add_bus(&pca_isa_ops) < 0) {
dev_err(dev, "Failed to add i2c bus\n");
goto out_irq;
@@ -178,7 +167,7 @@
.remove = __devexit_p(pca_isa_remove),
.driver = {
.owner = THIS_MODULE,
- .name = "i2c-pca-isa",
+ .name = DRIVER,
}
};
@@ -204,7 +193,5 @@
module_param(clock, int, 0);
MODULE_PARM_DESC(clock, "Clock rate as described in table 1 of PCA9564 datasheet");
-module_param(own, int, 0); /* the driver can't do slave mode, so there's no real point in this */
-
module_init(pca_isa_init);
module_exit(pca_isa_exit);
diff --git a/drivers/i2c/busses/i2c-pca-platform.c b/drivers/i2c/busses/i2c-pca-platform.c
new file mode 100644
index 0000000..9d75f51
--- /dev/null
+++ b/drivers/i2c/busses/i2c-pca-platform.c
@@ -0,0 +1,298 @@
+/*
+ * i2c_pca_platform.c
+ *
+ * Platform driver for the PCA9564 I2C controller.
+ *
+ * Copyright (C) 2008 Pengutronix
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/i2c-algo-pca.h>
+#include <linux/i2c-pca-platform.h>
+#include <linux/gpio.h>
+
+#include <asm/irq.h>
+#include <asm/io.h>
+
+#define res_len(r) ((r)->end - (r)->start + 1)
+
+struct i2c_pca_pf_data {
+ void __iomem *reg_base;
+ int irq; /* if 0, use polling */
+ int gpio;
+ wait_queue_head_t wait;
+ struct i2c_adapter adap;
+ struct i2c_algo_pca_data algo_data;
+ unsigned long io_base;
+ unsigned long io_size;
+};
+
+/* Read/Write functions for different register alignments */
+
+static int i2c_pca_pf_readbyte8(void *pd, int reg)
+{
+ struct i2c_pca_pf_data *i2c = pd;
+ return ioread8(i2c->reg_base + reg);
+}
+
+static int i2c_pca_pf_readbyte16(void *pd, int reg)
+{
+ struct i2c_pca_pf_data *i2c = pd;
+ return ioread8(i2c->reg_base + reg * 2);
+}
+
+static int i2c_pca_pf_readbyte32(void *pd, int reg)
+{
+ struct i2c_pca_pf_data *i2c = pd;
+ return ioread8(i2c->reg_base + reg * 4);
+}
+
+static void i2c_pca_pf_writebyte8(void *pd, int reg, int val)
+{
+ struct i2c_pca_pf_data *i2c = pd;
+ iowrite8(val, i2c->reg_base + reg);
+}
+
+static void i2c_pca_pf_writebyte16(void *pd, int reg, int val)
+{
+ struct i2c_pca_pf_data *i2c = pd;
+ iowrite8(val, i2c->reg_base + reg * 2);
+}
+
+static void i2c_pca_pf_writebyte32(void *pd, int reg, int val)
+{
+ struct i2c_pca_pf_data *i2c = pd;
+ iowrite8(val, i2c->reg_base + reg * 4);
+}
+
+
+static int i2c_pca_pf_waitforcompletion(void *pd)
+{
+ struct i2c_pca_pf_data *i2c = pd;
+ int ret = 0;
+
+ if (i2c->irq) {
+ ret = wait_event_interruptible(i2c->wait,
+ i2c->algo_data.read_byte(i2c, I2C_PCA_CON)
+ & I2C_PCA_CON_SI);
+ } else {
+ /*
+ * Do polling...
+ * XXX: Could get stuck in extreme cases!
+ * Maybe add timeout, but using irqs is preferred anyhow.
+ */
+ while ((i2c->algo_data.read_byte(i2c, I2C_PCA_CON)
+ & I2C_PCA_CON_SI) == 0)
+ udelay(100);
+ }
+
+ return ret;
+}
+
+static void i2c_pca_pf_dummyreset(void *pd)
+{
+ struct i2c_pca_pf_data *i2c = pd;
+ printk(KERN_WARNING "%s: No reset-pin found. Chip may get stuck!\n",
+ i2c->adap.name);
+}
+
+static void i2c_pca_pf_resetchip(void *pd)
+{
+ struct i2c_pca_pf_data *i2c = pd;
+
+ gpio_set_value(i2c->gpio, 0);
+ ndelay(100);
+ gpio_set_value(i2c->gpio, 1);
+}
+
+static irqreturn_t i2c_pca_pf_handler(int this_irq, void *dev_id)
+{
+ struct i2c_pca_pf_data *i2c = dev_id;
+
+ if ((i2c->algo_data.read_byte(i2c, I2C_PCA_CON) & I2C_PCA_CON_SI) == 0)
+ return IRQ_NONE;
+
+ wake_up_interruptible(&i2c->wait);
+
+ return IRQ_HANDLED;
+}
+
+
+static int __devinit i2c_pca_pf_probe(struct platform_device *pdev)
+{
+ struct i2c_pca_pf_data *i2c;
+ struct resource *res;
+ struct i2c_pca9564_pf_platform_data *platform_data =
+ pdev->dev.platform_data;
+ int ret = 0;
+ int irq;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ irq = platform_get_irq(pdev, 0);
+ /* If irq is 0, we do polling. */
+
+ if (res == NULL) {
+ ret = -ENODEV;
+ goto e_print;
+ }
+
+ if (!request_mem_region(res->start, res_len(res), res->name)) {
+ ret = -ENOMEM;
+ goto e_print;
+ }
+
+ i2c = kzalloc(sizeof(struct i2c_pca_pf_data), GFP_KERNEL);
+ if (!i2c) {
+ ret = -ENOMEM;
+ goto e_alloc;
+ }
+
+ init_waitqueue_head(&i2c->wait);
+
+ i2c->reg_base = ioremap(res->start, res_len(res));
+ if (!i2c->reg_base) {
+ ret = -EIO;
+ goto e_remap;
+ }
+ i2c->io_base = res->start;
+ i2c->io_size = res_len(res);
+ i2c->irq = irq;
+
+ i2c->adap.nr = pdev->id >= 0 ? pdev->id : 0;
+ i2c->adap.owner = THIS_MODULE;
+ snprintf(i2c->adap.name, sizeof(i2c->adap.name), "PCA9564 at 0x%08lx",
+ (unsigned long) res->start);
+ i2c->adap.algo_data = &i2c->algo_data;
+ i2c->adap.dev.parent = &pdev->dev;
+ i2c->adap.timeout = platform_data->timeout;
+
+ i2c->algo_data.i2c_clock = platform_data->i2c_clock_speed;
+ i2c->algo_data.data = i2c;
+
+ switch (res->flags & IORESOURCE_MEM_TYPE_MASK) {
+ case IORESOURCE_MEM_32BIT:
+ i2c->algo_data.write_byte = i2c_pca_pf_writebyte32;
+ i2c->algo_data.read_byte = i2c_pca_pf_readbyte32;
+ break;
+ case IORESOURCE_MEM_16BIT:
+ i2c->algo_data.write_byte = i2c_pca_pf_writebyte16;
+ i2c->algo_data.read_byte = i2c_pca_pf_readbyte16;
+ break;
+ case IORESOURCE_MEM_8BIT:
+ default:
+ i2c->algo_data.write_byte = i2c_pca_pf_writebyte8;
+ i2c->algo_data.read_byte = i2c_pca_pf_readbyte8;
+ break;
+ }
+
+ i2c->algo_data.wait_for_completion = i2c_pca_pf_waitforcompletion;
+
+ i2c->gpio = platform_data->gpio;
+ i2c->algo_data.reset_chip = i2c_pca_pf_dummyreset;
+
+ /* Use gpio_is_valid() when in mainline */
+ if (i2c->gpio > -1) {
+ ret = gpio_request(i2c->gpio, i2c->adap.name);
+ if (ret == 0) {
+ gpio_direction_output(i2c->gpio, 1);
+ i2c->algo_data.reset_chip = i2c_pca_pf_resetchip;
+ } else {
+ printk(KERN_WARNING "%s: Registering gpio failed!\n",
+ i2c->adap.name);
+ i2c->gpio = ret;
+ }
+ }
+
+ if (irq) {
+ ret = request_irq(irq, i2c_pca_pf_handler,
+ IRQF_TRIGGER_FALLING, i2c->adap.name, i2c);
+ if (ret)
+ goto e_reqirq;
+ }
+
+ if (i2c_pca_add_numbered_bus(&i2c->adap) < 0) {
+ ret = -ENODEV;
+ goto e_adapt;
+ }
+
+ platform_set_drvdata(pdev, i2c);
+
+ printk(KERN_INFO "%s registered.\n", i2c->adap.name);
+
+ return 0;
+
+e_adapt:
+ if (irq)
+ free_irq(irq, i2c);
+e_reqirq:
+ if (i2c->gpio > -1)
+ gpio_free(i2c->gpio);
+
+ iounmap(i2c->reg_base);
+e_remap:
+ kfree(i2c);
+e_alloc:
+ release_mem_region(res->start, res_len(res));
+e_print:
+ printk(KERN_ERR "Registering PCA9564 FAILED! (%d)\n", ret);
+ return ret;
+}
+
+static int __devexit i2c_pca_pf_remove(struct platform_device *pdev)
+{
+ struct i2c_pca_pf_data *i2c = platform_get_drvdata(pdev);
+ platform_set_drvdata(pdev, NULL);
+
+ i2c_del_adapter(&i2c->adap);
+
+ if (i2c->irq)
+ free_irq(i2c->irq, i2c);
+
+ if (i2c->gpio > -1)
+ gpio_free(i2c->gpio);
+
+ iounmap(i2c->reg_base);
+ release_mem_region(i2c->io_base, i2c->io_size);
+ kfree(i2c);
+
+ return 0;
+}
+
+static struct platform_driver i2c_pca_pf_driver = {
+ .probe = i2c_pca_pf_probe,
+ .remove = __devexit_p(i2c_pca_pf_remove),
+ .driver = {
+ .name = "i2c-pca-platform",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init i2c_pca_pf_init(void)
+{
+ return platform_driver_register(&i2c_pca_pf_driver);
+}
+
+static void __exit i2c_pca_pf_exit(void)
+{
+ platform_driver_unregister(&i2c_pca_pf_driver);
+}
+
+MODULE_AUTHOR("Wolfram Sang <w.sang@pengutronix.de>");
+MODULE_DESCRIPTION("I2C-PCA9564 platform driver");
+MODULE_LICENSE("GPL");
+
+module_init(i2c_pca_pf_init);
+module_exit(i2c_pca_pf_exit);
+
diff --git a/drivers/i2c/busses/i2c-pmcmsp.c b/drivers/i2c/busses/i2c-pmcmsp.c
index b03af56..63b3e2c 100644
--- a/drivers/i2c/busses/i2c-pmcmsp.c
+++ b/drivers/i2c/busses/i2c-pmcmsp.c
@@ -467,7 +467,7 @@
(cmd->read_len == 0 || cmd->write_len == 0))) {
dev_err(&pmcmsptwi_adapter.dev,
"%s: Cannot transfer less than 1 byte\n",
- __FUNCTION__);
+ __func__);
return -EINVAL;
}
@@ -475,7 +475,7 @@
cmd->write_len > MSP_MAX_BYTES_PER_RW) {
dev_err(&pmcmsptwi_adapter.dev,
"%s: Cannot transfer more than %d bytes\n",
- __FUNCTION__, MSP_MAX_BYTES_PER_RW);
+ __func__, MSP_MAX_BYTES_PER_RW);
return -EINVAL;
}
@@ -627,6 +627,9 @@
.name = DRV_NAME,
};
+/* work with hotplug and coldplug */
+MODULE_ALIAS("platform:" DRV_NAME);
+
static struct platform_driver pmcmsptwi_driver = {
.probe = pmcmsptwi_probe,
.remove = __devexit_p(pmcmsptwi_remove),
diff --git a/drivers/i2c/busses/i2c-pnx.c b/drivers/i2c/busses/i2c-pnx.c
index f8d0dff..1ca2108 100644
--- a/drivers/i2c/busses/i2c-pnx.c
+++ b/drivers/i2c/busses/i2c-pnx.c
@@ -76,7 +76,7 @@
{
struct i2c_pnx_algo_data *alg_data = adap->algo_data;
- dev_dbg(&adap->dev, "%s(): addr 0x%x mode %d\n", __FUNCTION__,
+ dev_dbg(&adap->dev, "%s(): addr 0x%x mode %d\n", __func__,
slave_addr, alg_data->mif.mode);
/* Check for 7 bit slave addresses only */
@@ -110,14 +110,14 @@
iowrite32(ioread32(I2C_REG_STS(alg_data)) | mstatus_tdi | mstatus_afi,
I2C_REG_STS(alg_data));
- dev_dbg(&adap->dev, "%s(): sending %#x\n", __FUNCTION__,
+ dev_dbg(&adap->dev, "%s(): sending %#x\n", __func__,
(slave_addr << 1) | start_bit | alg_data->mif.mode);
/* Write the slave address, START bit and R/W bit */
iowrite32((slave_addr << 1) | start_bit | alg_data->mif.mode,
I2C_REG_TX(alg_data));
- dev_dbg(&adap->dev, "%s(): exit\n", __FUNCTION__);
+ dev_dbg(&adap->dev, "%s(): exit\n", __func__);
return 0;
}
@@ -135,7 +135,7 @@
long timeout = 1000;
dev_dbg(&adap->dev, "%s(): entering: stat = %04x.\n",
- __FUNCTION__, ioread32(I2C_REG_STS(alg_data)));
+ __func__, ioread32(I2C_REG_STS(alg_data)));
/* Write a STOP bit to TX FIFO */
iowrite32(0xff | stop_bit, I2C_REG_TX(alg_data));
@@ -149,7 +149,7 @@
}
dev_dbg(&adap->dev, "%s(): exiting: stat = %04x.\n",
- __FUNCTION__, ioread32(I2C_REG_STS(alg_data)));
+ __func__, ioread32(I2C_REG_STS(alg_data)));
}
/**
@@ -164,7 +164,7 @@
u32 val;
dev_dbg(&adap->dev, "%s(): entering: stat = %04x.\n",
- __FUNCTION__, ioread32(I2C_REG_STS(alg_data)));
+ __func__, ioread32(I2C_REG_STS(alg_data)));
if (alg_data->mif.len > 0) {
/* We still have something to talk about... */
@@ -179,7 +179,7 @@
alg_data->mif.len--;
iowrite32(val, I2C_REG_TX(alg_data));
- dev_dbg(&adap->dev, "%s(): xmit %#x [%d]\n", __FUNCTION__,
+ dev_dbg(&adap->dev, "%s(): xmit %#x [%d]\n", __func__,
val, alg_data->mif.len + 1);
if (alg_data->mif.len == 0) {
@@ -197,7 +197,7 @@
del_timer_sync(&alg_data->mif.timer);
dev_dbg(&adap->dev, "%s(): Waking up xfer routine.\n",
- __FUNCTION__);
+ __func__);
complete(&alg_data->mif.complete);
}
@@ -213,13 +213,13 @@
/* Stop timer. */
del_timer_sync(&alg_data->mif.timer);
dev_dbg(&adap->dev, "%s(): Waking up xfer routine after "
- "zero-xfer.\n", __FUNCTION__);
+ "zero-xfer.\n", __func__);
complete(&alg_data->mif.complete);
}
dev_dbg(&adap->dev, "%s(): exiting: stat = %04x.\n",
- __FUNCTION__, ioread32(I2C_REG_STS(alg_data)));
+ __func__, ioread32(I2C_REG_STS(alg_data)));
return 0;
}
@@ -237,14 +237,14 @@
u32 ctl = 0;
dev_dbg(&adap->dev, "%s(): entering: stat = %04x.\n",
- __FUNCTION__, ioread32(I2C_REG_STS(alg_data)));
+ __func__, ioread32(I2C_REG_STS(alg_data)));
/* Check, whether there is already data,
* or we didn't 'ask' for it yet.
*/
if (ioread32(I2C_REG_STS(alg_data)) & mstatus_rfe) {
dev_dbg(&adap->dev, "%s(): Write dummy data to fill "
- "Rx-fifo...\n", __FUNCTION__);
+ "Rx-fifo...\n", __func__);
if (alg_data->mif.len == 1) {
/* Last byte, do not acknowledge next rcv. */
@@ -276,7 +276,7 @@
if (alg_data->mif.len > 0) {
val = ioread32(I2C_REG_RX(alg_data));
*alg_data->mif.buf++ = (u8) (val & 0xff);
- dev_dbg(&adap->dev, "%s(): rcv 0x%x [%d]\n", __FUNCTION__, val,
+ dev_dbg(&adap->dev, "%s(): rcv 0x%x [%d]\n", __func__, val,
alg_data->mif.len);
alg_data->mif.len--;
@@ -300,7 +300,7 @@
}
dev_dbg(&adap->dev, "%s(): exiting: stat = %04x.\n",
- __FUNCTION__, ioread32(I2C_REG_STS(alg_data)));
+ __func__, ioread32(I2C_REG_STS(alg_data)));
return 0;
}
@@ -312,7 +312,7 @@
struct i2c_pnx_algo_data *alg_data = adap->algo_data;
dev_dbg(&adap->dev, "%s(): mstat = %x mctrl = %x, mode = %d\n",
- __FUNCTION__,
+ __func__,
ioread32(I2C_REG_STS(alg_data)),
ioread32(I2C_REG_CTL(alg_data)),
alg_data->mif.mode);
@@ -336,7 +336,7 @@
/* Slave did not acknowledge, generate a STOP */
dev_dbg(&adap->dev, "%s(): "
"Slave did not acknowledge, generating a STOP.\n",
- __FUNCTION__);
+ __func__);
i2c_pnx_stop(adap);
/* Disable master interrupts. */
@@ -375,7 +375,7 @@
iowrite32(stat | mstatus_tdi | mstatus_afi, I2C_REG_STS(alg_data));
dev_dbg(&adap->dev, "%s(): exiting, stat = %x ctrl = %x.\n",
- __FUNCTION__, ioread32(I2C_REG_STS(alg_data)),
+ __func__, ioread32(I2C_REG_STS(alg_data)),
ioread32(I2C_REG_CTL(alg_data)));
return IRQ_HANDLED;
@@ -447,7 +447,7 @@
u32 stat = ioread32(I2C_REG_STS(alg_data));
dev_dbg(&adap->dev, "%s(): entering: %d messages, stat = %04x.\n",
- __FUNCTION__, num, ioread32(I2C_REG_STS(alg_data)));
+ __func__, num, ioread32(I2C_REG_STS(alg_data)));
bus_reset_if_active(adap);
@@ -473,7 +473,7 @@
alg_data->mif.ret = 0;
alg_data->last = (i == num - 1);
- dev_dbg(&adap->dev, "%s(): mode %d, %d bytes\n", __FUNCTION__,
+ dev_dbg(&adap->dev, "%s(): mode %d, %d bytes\n", __func__,
alg_data->mif.mode,
alg_data->mif.len);
@@ -498,7 +498,7 @@
if (!(rc = alg_data->mif.ret))
completed++;
dev_dbg(&adap->dev, "%s(): Complete, return code = %d.\n",
- __FUNCTION__, rc);
+ __func__, rc);
/* Clear TDI and AFI bits in case they are set. */
if ((stat = ioread32(I2C_REG_STS(alg_data))) & mstatus_tdi) {
@@ -522,7 +522,7 @@
alg_data->mif.len = 0;
dev_dbg(&adap->dev, "%s(): exiting, stat = %x\n",
- __FUNCTION__, ioread32(I2C_REG_STS(alg_data)));
+ __func__, ioread32(I2C_REG_STS(alg_data)));
if (completed != num)
return ((rc < 0) ? rc : -EREMOTEIO);
@@ -563,7 +563,7 @@
if (!i2c_pnx || !i2c_pnx->adapter) {
dev_err(&pdev->dev, "%s: no platform data supplied\n",
- __FUNCTION__);
+ __func__);
ret = -EINVAL;
goto out;
}
@@ -697,6 +697,7 @@
MODULE_AUTHOR("Vitaly Wool, Dennis Kovalev <source@mvista.com>");
MODULE_DESCRIPTION("I2C driver for Philips IP3204-based I2C busses");
MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:pnx-i2c");
/* We need to make sure I2C is initialized before USB */
subsys_initcall(i2c_adap_pnx_init);
diff --git a/drivers/i2c/busses/i2c-powermac.c b/drivers/i2c/busses/i2c-powermac.c
index 7813127..22f6d5c 100644
--- a/drivers/i2c/busses/i2c-powermac.c
+++ b/drivers/i2c/busses/i2c-powermac.c
@@ -263,6 +263,9 @@
}
+/* work with hotplug and coldplug */
+MODULE_ALIAS("platform:i2c-powermac");
+
static struct platform_driver i2c_powermac_driver = {
.probe = i2c_powermac_probe,
.remove = __devexit_p(i2c_powermac_remove),
diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c
index 6fd2d6a..eb69fba 100644
--- a/drivers/i2c/busses/i2c-pxa.c
+++ b/drivers/i2c/busses/i2c-pxa.c
@@ -155,7 +155,7 @@
readl(_ISR(i2c)), readl(_ICR(i2c)), readl(_IBMR(i2c)));
}
-#define show_state(i2c) i2c_pxa_show_state(i2c, __LINE__, __FUNCTION__)
+#define show_state(i2c) i2c_pxa_show_state(i2c, __LINE__, __func__)
#else
#define i2c_debug 0
@@ -1132,6 +1132,7 @@
}
MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:pxa2xx-i2c");
module_init(i2c_adap_pxa_init);
module_exit(i2c_adap_pxa_exit);
diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c
index c44ada5..1305ef1 100644
--- a/drivers/i2c/busses/i2c-s3c2410.c
+++ b/drivers/i2c/busses/i2c-s3c2410.c
@@ -276,12 +276,12 @@
switch (i2c->state) {
case STATE_IDLE:
- dev_err(i2c->dev, "%s: called in STATE_IDLE\n", __FUNCTION__);
+ dev_err(i2c->dev, "%s: called in STATE_IDLE\n", __func__);
goto out;
break;
case STATE_STOP:
- dev_err(i2c->dev, "%s: called in STATE_STOP\n", __FUNCTION__);
+ dev_err(i2c->dev, "%s: called in STATE_STOP\n", __func__);
s3c24xx_i2c_disable_irq(i2c);
goto out_ack;
@@ -948,3 +948,4 @@
MODULE_DESCRIPTION("S3C24XX I2C Bus driver");
MODULE_AUTHOR("Ben Dooks, <ben@simtec.co.uk>");
MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:s3c2410-i2c");
diff --git a/drivers/i2c/busses/i2c-sh7760.c b/drivers/i2c/busses/i2c-sh7760.c
new file mode 100644
index 0000000..5e0e254
--- /dev/null
+++ b/drivers/i2c/busses/i2c-sh7760.c
@@ -0,0 +1,577 @@
+/*
+ * I2C bus driver for the SH7760 I2C Interfaces.
+ *
+ * (c) 2005-2008 MSC Vertriebsges.m.b.H, Manuel Lauss <mlau@msc-ge.com>
+ *
+ * licensed under the terms outlined in the file COPYING.
+ *
+ */
+
+#include <linux/completion.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+#include <asm/clock.h>
+#include <asm/i2c-sh7760.h>
+#include <asm/io.h>
+
+/* register offsets */
+#define I2CSCR 0x0 /* slave ctrl */
+#define I2CMCR 0x4 /* master ctrl */
+#define I2CSSR 0x8 /* slave status */
+#define I2CMSR 0xC /* master status */
+#define I2CSIER 0x10 /* slave irq enable */
+#define I2CMIER 0x14 /* master irq enable */
+#define I2CCCR 0x18 /* clock dividers */
+#define I2CSAR 0x1c /* slave address */
+#define I2CMAR 0x20 /* master address */
+#define I2CRXTX 0x24 /* data port */
+#define I2CFCR 0x28 /* fifo control */
+#define I2CFSR 0x2C /* fifo status */
+#define I2CFIER 0x30 /* fifo irq enable */
+#define I2CRFDR 0x34 /* rx fifo count */
+#define I2CTFDR 0x38 /* tx fifo count */
+
+#define REGSIZE 0x3C
+
+#define MCR_MDBS 0x80 /* non-fifo mode switch */
+#define MCR_FSCL 0x40 /* override SCL pin */
+#define MCR_FSDA 0x20 /* override SDA pin */
+#define MCR_OBPC 0x10 /* override pins */
+#define MCR_MIE 0x08 /* master if enable */
+#define MCR_TSBE 0x04
+#define MCR_FSB 0x02 /* force stop bit */
+#define MCR_ESG 0x01 /* en startbit gen. */
+
+#define MSR_MNR 0x40 /* nack received */
+#define MSR_MAL 0x20 /* arbitration lost */
+#define MSR_MST 0x10 /* sent a stop */
+#define MSR_MDE 0x08
+#define MSR_MDT 0x04
+#define MSR_MDR 0x02
+#define MSR_MAT 0x01 /* slave addr xfer done */
+
+#define MIE_MNRE 0x40 /* nack irq en */
+#define MIE_MALE 0x20 /* arblos irq en */
+#define MIE_MSTE 0x10 /* stop irq en */
+#define MIE_MDEE 0x08
+#define MIE_MDTE 0x04
+#define MIE_MDRE 0x02
+#define MIE_MATE 0x01 /* address sent irq en */
+
+#define FCR_RFRST 0x02 /* reset rx fifo */
+#define FCR_TFRST 0x01 /* reset tx fifo */
+
+#define FSR_TEND 0x04 /* last byte sent */
+#define FSR_RDF 0x02 /* rx fifo trigger */
+#define FSR_TDFE 0x01 /* tx fifo empty */
+
+#define FIER_TEIE 0x04 /* tx fifo empty irq en */
+#define FIER_RXIE 0x02 /* rx fifo trig irq en */
+#define FIER_TXIE 0x01 /* tx fifo trig irq en */
+
+#define FIFO_SIZE 16
+
+struct cami2c {
+ void __iomem *iobase;
+ struct i2c_adapter adap;
+
+ /* message processing */
+ struct i2c_msg *msg;
+#define IDF_SEND 1
+#define IDF_RECV 2
+#define IDF_STOP 4
+ int flags;
+
+#define IDS_DONE 1
+#define IDS_ARBLOST 2
+#define IDS_NACK 4
+ int status;
+ struct completion xfer_done;
+
+ int irq;
+ struct resource *ioarea;
+};
+
+static inline void OUT32(struct cami2c *cam, int reg, unsigned long val)
+{
+ ctrl_outl(val, (unsigned long)cam->iobase + reg);
+}
+
+static inline unsigned long IN32(struct cami2c *cam, int reg)
+{
+ return ctrl_inl((unsigned long)cam->iobase + reg);
+}
+
+static irqreturn_t sh7760_i2c_irq(int irq, void *ptr)
+{
+ struct cami2c *id = ptr;
+ struct i2c_msg *msg = id->msg;
+ char *data = msg->buf;
+ unsigned long msr, fsr, fier, len;
+
+ msr = IN32(id, I2CMSR);
+ fsr = IN32(id, I2CFSR);
+
+ /* arbitration lost */
+ if (msr & MSR_MAL) {
+ OUT32(id, I2CMCR, 0);
+ OUT32(id, I2CSCR, 0);
+ OUT32(id, I2CSAR, 0);
+ id->status |= IDS_DONE | IDS_ARBLOST;
+ goto out;
+ }
+
+ if (msr & MSR_MNR) {
+ /* NACK handling is very screwed up. After receiving a
+ * NAK IRQ one has to wait a bit before writing to any
+ * registers, or the ctl will lock up. After that delay
+ * do a normal i2c stop. Then wait at least 1 ms before
+ * attempting another transfer or ctl will stop working
+ */
+ udelay(100); /* wait or risk ctl hang */
+ OUT32(id, I2CFCR, FCR_RFRST | FCR_TFRST);
+ OUT32(id, I2CMCR, MCR_MIE | MCR_FSB);
+ OUT32(id, I2CFIER, 0);
+ OUT32(id, I2CMIER, MIE_MSTE);
+ OUT32(id, I2CSCR, 0);
+ OUT32(id, I2CSAR, 0);
+ id->status |= IDS_NACK;
+ msr &= ~MSR_MAT;
+ fsr = 0;
+ /* In some cases the MST bit is also set. */
+ }
+
+ /* i2c-stop was sent */
+ if (msr & MSR_MST) {
+ id->status |= IDS_DONE;
+ goto out;
+ }
+
+ /* i2c slave addr was sent; set to "normal" operation */
+ if (msr & MSR_MAT)
+ OUT32(id, I2CMCR, MCR_MIE);
+
+ fier = IN32(id, I2CFIER);
+
+ if (fsr & FSR_RDF) {
+ len = IN32(id, I2CRFDR);
+ if (msg->len <= len) {
+ if (id->flags & IDF_STOP) {
+ OUT32(id, I2CMCR, MCR_MIE | MCR_FSB);
+ OUT32(id, I2CFIER, 0);
+ /* manual says: wait >= 0.5 SCL times */
+ udelay(5);
+ /* next int should be MST */
+ } else {
+ id->status |= IDS_DONE;
+ /* keep the RDF bit: ctrl holds SCL low
+ * until the setup for the next i2c_msg
+ * clears this bit.
+ */
+ fsr &= ~FSR_RDF;
+ }
+ }
+ while (msg->len && len) {
+ *data++ = IN32(id, I2CRXTX);
+ msg->len--;
+ len--;
+ }
+
+ if (msg->len) {
+ len = (msg->len >= FIFO_SIZE) ? FIFO_SIZE - 1
+ : msg->len - 1;
+
+ OUT32(id, I2CFCR, FCR_TFRST | ((len & 0xf) << 4));
+ }
+
+ } else if (id->flags & IDF_SEND) {
+ if ((fsr & FSR_TEND) && (msg->len < 1)) {
+ if (id->flags & IDF_STOP) {
+ OUT32(id, I2CMCR, MCR_MIE | MCR_FSB);
+ } else {
+ id->status |= IDS_DONE;
+ /* keep the TEND bit: ctl holds SCL low
+ * until the setup for the next i2c_msg
+ * clears this bit.
+ */
+ fsr &= ~FSR_TEND;
+ }
+ }
+ if (fsr & FSR_TDFE) {
+ while (msg->len && (IN32(id, I2CTFDR) < FIFO_SIZE)) {
+ OUT32(id, I2CRXTX, *data++);
+ msg->len--;
+ }
+
+ if (msg->len < 1) {
+ fier &= ~FIER_TXIE;
+ OUT32(id, I2CFIER, fier);
+ } else {
+ len = (msg->len >= FIFO_SIZE) ? 2 : 0;
+ OUT32(id, I2CFCR,
+ FCR_RFRST | ((len & 3) << 2));
+ }
+ }
+ }
+out:
+ if (id->status & IDS_DONE) {
+ OUT32(id, I2CMIER, 0);
+ OUT32(id, I2CFIER, 0);
+ id->msg = NULL;
+ complete(&id->xfer_done);
+ }
+ /* clear status flags and ctrl resumes work */
+ OUT32(id, I2CMSR, ~msr);
+ OUT32(id, I2CFSR, ~fsr);
+ OUT32(id, I2CSSR, 0);
+
+ return IRQ_HANDLED;
+}
+
+
+/* prepare and start a master receive operation */
+static void sh7760_i2c_mrecv(struct cami2c *id)
+{
+ int len;
+
+ id->flags |= IDF_RECV;
+
+ /* set the slave addr reg; otherwise rcv wont work! */
+ OUT32(id, I2CSAR, 0xfe);
+ OUT32(id, I2CMAR, (id->msg->addr << 1) | 1);
+
+ /* adjust rx fifo trigger */
+ if (id->msg->len >= FIFO_SIZE)
+ len = FIFO_SIZE - 1; /* trigger at fifo full */
+ else
+ len = id->msg->len - 1; /* trigger before all received */
+
+ OUT32(id, I2CFCR, FCR_RFRST | FCR_TFRST);
+ OUT32(id, I2CFCR, FCR_TFRST | ((len & 0xF) << 4));
+
+ OUT32(id, I2CMSR, 0);
+ OUT32(id, I2CMCR, MCR_MIE | MCR_ESG);
+ OUT32(id, I2CMIER, MIE_MNRE | MIE_MALE | MIE_MSTE | MIE_MATE);
+ OUT32(id, I2CFIER, FIER_RXIE);
+}
+
+/* prepare and start a master send operation */
+static void sh7760_i2c_msend(struct cami2c *id)
+{
+ int len;
+
+ id->flags |= IDF_SEND;
+
+ /* set the slave addr reg; otherwise xmit wont work! */
+ OUT32(id, I2CSAR, 0xfe);
+ OUT32(id, I2CMAR, (id->msg->addr << 1) | 0);
+
+ /* adjust tx fifo trigger */
+ if (id->msg->len >= FIFO_SIZE)
+ len = 2; /* trig: 2 bytes left in TX fifo */
+ else
+ len = 0; /* trig: 8 bytes left in TX fifo */
+
+ OUT32(id, I2CFCR, FCR_RFRST | FCR_TFRST);
+ OUT32(id, I2CFCR, FCR_RFRST | ((len & 3) << 2));
+
+ while (id->msg->len && IN32(id, I2CTFDR) < FIFO_SIZE) {
+ OUT32(id, I2CRXTX, *(id->msg->buf));
+ (id->msg->len)--;
+ (id->msg->buf)++;
+ }
+
+ OUT32(id, I2CMSR, 0);
+ OUT32(id, I2CMCR, MCR_MIE | MCR_ESG);
+ OUT32(id, I2CFSR, 0);
+ OUT32(id, I2CMIER, MIE_MNRE | MIE_MALE | MIE_MSTE | MIE_MATE);
+ OUT32(id, I2CFIER, FIER_TEIE | (id->msg->len ? FIER_TXIE : 0));
+}
+
+static inline int sh7760_i2c_busy_check(struct cami2c *id)
+{
+ return (IN32(id, I2CMCR) & MCR_FSDA);
+}
+
+static int sh7760_i2c_master_xfer(struct i2c_adapter *adap,
+ struct i2c_msg *msgs,
+ int num)
+{
+ struct cami2c *id = adap->algo_data;
+ int i, retr;
+
+ if (sh7760_i2c_busy_check(id)) {
+ dev_err(&adap->dev, "sh7760-i2c%d: bus busy!\n", adap->nr);
+ return -EBUSY;
+ }
+
+ i = 0;
+ while (i < num) {
+ retr = adap->retries;
+retry:
+ id->flags = ((i == (num-1)) ? IDF_STOP : 0);
+ id->status = 0;
+ id->msg = msgs;
+ init_completion(&id->xfer_done);
+
+ if (msgs->flags & I2C_M_RD)
+ sh7760_i2c_mrecv(id);
+ else
+ sh7760_i2c_msend(id);
+
+ wait_for_completion(&id->xfer_done);
+
+ if (id->status == 0) {
+ num = -EIO;
+ break;
+ }
+
+ if (id->status & IDS_NACK) {
+ /* wait a bit or i2c module stops working */
+ mdelay(1);
+ num = -EREMOTEIO;
+ break;
+ }
+
+ if (id->status & IDS_ARBLOST) {
+ if (retr--) {
+ mdelay(2);
+ goto retry;
+ }
+ num = -EREMOTEIO;
+ break;
+ }
+
+ msgs++;
+ i++;
+ }
+
+ id->msg = NULL;
+ id->flags = 0;
+ id->status = 0;
+
+ OUT32(id, I2CMCR, 0);
+ OUT32(id, I2CMSR, 0);
+ OUT32(id, I2CMIER, 0);
+ OUT32(id, I2CFIER, 0);
+
+ /* reset slave module registers too: master mode enables slave
+ * module for receive ops (ack, data). Without this reset,
+ * eternal bus activity might be reported after NACK / ARBLOST.
+ */
+ OUT32(id, I2CSCR, 0);
+ OUT32(id, I2CSAR, 0);
+ OUT32(id, I2CSSR, 0);
+
+ return num;
+}
+
+static u32 sh7760_i2c_func(struct i2c_adapter *adap)
+{
+ return I2C_FUNC_I2C | (I2C_FUNC_SMBUS_EMUL & ~I2C_FUNC_SMBUS_QUICK);
+}
+
+static const struct i2c_algorithm sh7760_i2c_algo = {
+ .master_xfer = sh7760_i2c_master_xfer,
+ .functionality = sh7760_i2c_func,
+};
+
+/* calculate CCR register setting for a desired scl clock. SCL clock is
+ * derived from I2C module clock (iclk) which in turn is derived from
+ * peripheral module clock (mclk, usually around 33MHz):
+ * iclk = mclk/(CDF + 1). iclk must be < 20MHz.
+ * scl = iclk/(SCGD*8 + 20).
+ */
+static int __devinit calc_CCR(unsigned long scl_hz)
+{
+ struct clk *mclk;
+ unsigned long mck, m1, dff, odff, iclk;
+ signed char cdf, cdfm;
+ int scgd, scgdm, scgds;
+
+ mclk = clk_get(NULL, "module_clk");
+ if (IS_ERR(mclk)) {
+ return PTR_ERR(mclk);
+ } else {
+ mck = mclk->rate;
+ clk_put(mclk);
+ }
+
+ odff = scl_hz;
+ scgdm = cdfm = m1 = 0;
+ for (cdf = 3; cdf >= 0; cdf--) {
+ iclk = mck / (1 + cdf);
+ if (iclk >= 20000000)
+ continue;
+ scgds = ((iclk / scl_hz) - 20) >> 3;
+ for (scgd = scgds; (scgd < 63) && scgd <= scgds + 1; scgd++) {
+ m1 = iclk / (20 + (scgd << 3));
+ dff = abs(scl_hz - m1);
+ if (dff < odff) {
+ odff = dff;
+ cdfm = cdf;
+ scgdm = scgd;
+ }
+ }
+ }
+ /* fail if more than 25% off of requested SCL */
+ if (odff > (scl_hz >> 2))
+ return -EINVAL;
+
+ /* create a CCR register value */
+ return ((scgdm << 2) | cdfm);
+}
+
+static int __devinit sh7760_i2c_probe(struct platform_device *pdev)
+{
+ struct sh7760_i2c_platdata *pd;
+ struct resource *res;
+ struct cami2c *id;
+ int ret;
+
+ pd = pdev->dev.platform_data;
+ if (!pd) {
+ dev_err(&pdev->dev, "no platform_data!\n");
+ ret = -ENODEV;
+ goto out0;
+ }
+
+ id = kzalloc(sizeof(struct cami2c), GFP_KERNEL);
+ if (!id) {
+ dev_err(&pdev->dev, "no mem for private data\n");
+ ret = -ENOMEM;
+ goto out0;
+ }
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(&pdev->dev, "no mmio resources\n");
+ ret = -ENODEV;
+ goto out1;
+ }
+
+ id->ioarea = request_mem_region(res->start, REGSIZE, pdev->name);
+ if (!id->ioarea) {
+ dev_err(&pdev->dev, "mmio already reserved\n");
+ ret = -EBUSY;
+ goto out1;
+ }
+
+ id->iobase = ioremap(res->start, REGSIZE);
+ if (!id->iobase) {
+ dev_err(&pdev->dev, "cannot ioremap\n");
+ ret = -ENODEV;
+ goto out2;
+ }
+
+ id->irq = platform_get_irq(pdev, 0);
+
+ id->adap.nr = pdev->id;
+ id->adap.algo = &sh7760_i2c_algo;
+ id->adap.class = I2C_CLASS_ALL;
+ id->adap.retries = 3;
+ id->adap.algo_data = id;
+ id->adap.dev.parent = &pdev->dev;
+ snprintf(id->adap.name, sizeof(id->adap.name),
+ "SH7760 I2C at %08lx", (unsigned long)res->start);
+
+ OUT32(id, I2CMCR, 0);
+ OUT32(id, I2CMSR, 0);
+ OUT32(id, I2CMIER, 0);
+ OUT32(id, I2CMAR, 0);
+ OUT32(id, I2CSIER, 0);
+ OUT32(id, I2CSAR, 0);
+ OUT32(id, I2CSCR, 0);
+ OUT32(id, I2CSSR, 0);
+ OUT32(id, I2CFIER, 0);
+ OUT32(id, I2CFCR, FCR_RFRST | FCR_TFRST);
+ OUT32(id, I2CFSR, 0);
+
+ ret = calc_CCR(pd->speed_khz * 1000);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "invalid SCL clock: %dkHz\n",
+ pd->speed_khz);
+ goto out3;
+ }
+ OUT32(id, I2CCCR, ret);
+
+ if (request_irq(id->irq, sh7760_i2c_irq, IRQF_DISABLED,
+ SH7760_I2C_DEVNAME, id)) {
+ dev_err(&pdev->dev, "cannot get irq %d\n", id->irq);
+ ret = -EBUSY;
+ goto out3;
+ }
+
+ ret = i2c_add_numbered_adapter(&id->adap);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "reg adap failed: %d\n", ret);
+ goto out4;
+ }
+
+ platform_set_drvdata(pdev, id);
+
+ dev_info(&pdev->dev, "%d kHz mmio %08x irq %d\n",
+ pd->speed_khz, res->start, id->irq);
+
+ return 0;
+
+out4:
+ free_irq(id->irq, id);
+out3:
+ iounmap(id->iobase);
+out2:
+ release_resource(id->ioarea);
+ kfree(id->ioarea);
+out1:
+ kfree(id);
+out0:
+ return ret;
+}
+
+static int __devexit sh7760_i2c_remove(struct platform_device *pdev)
+{
+ struct cami2c *id = platform_get_drvdata(pdev);
+
+ i2c_del_adapter(&id->adap);
+ free_irq(id->irq, id);
+ iounmap(id->iobase);
+ release_resource(id->ioarea);
+ kfree(id->ioarea);
+ kfree(id);
+ platform_set_drvdata(pdev, NULL);
+
+ return 0;
+}
+
+static struct platform_driver sh7760_i2c_drv = {
+ .driver = {
+ .name = SH7760_I2C_DEVNAME,
+ .owner = THIS_MODULE,
+ },
+ .probe = sh7760_i2c_probe,
+ .remove = __devexit_p(sh7760_i2c_remove),
+};
+
+static int __init sh7760_i2c_init(void)
+{
+ return platform_driver_register(&sh7760_i2c_drv);
+}
+
+static void __exit sh7760_i2c_exit(void)
+{
+ platform_driver_unregister(&sh7760_i2c_drv);
+}
+
+module_init(sh7760_i2c_init);
+module_exit(sh7760_i2c_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("SH7760 I2C bus driver");
+MODULE_AUTHOR("Manuel Lauss <mano@roarinelk.homelinux.net>");
diff --git a/drivers/i2c/busses/i2c-sh_mobile.c b/drivers/i2c/busses/i2c-sh_mobile.c
new file mode 100644
index 0000000..840e634f
--- /dev/null
+++ b/drivers/i2c/busses/i2c-sh_mobile.c
@@ -0,0 +1,500 @@
+/*
+ * SuperH Mobile I2C Controller
+ *
+ * Copyright (C) 2008 Magnus Damm
+ *
+ * Portions of the code based on out-of-tree driver i2c-sh7343.c
+ * Copyright (c) 2006 Carlos Munoz <carlos@kenati.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/i2c.h>
+#include <linux/err.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+
+enum sh_mobile_i2c_op {
+ OP_START = 0,
+ OP_TX_ONLY,
+ OP_TX_STOP,
+ OP_TX_TO_RX,
+ OP_RX_ONLY,
+ OP_RX_STOP,
+};
+
+struct sh_mobile_i2c_data {
+ struct device *dev;
+ void __iomem *reg;
+ struct i2c_adapter adap;
+
+ struct clk *clk;
+ u_int8_t iccl;
+ u_int8_t icch;
+
+ spinlock_t lock;
+ wait_queue_head_t wait;
+ struct i2c_msg *msg;
+ int pos;
+ int sr;
+};
+
+#define NORMAL_SPEED 100000 /* FAST_SPEED 400000 */
+
+/* Register offsets */
+#define ICDR(pd) (pd->reg + 0x00)
+#define ICCR(pd) (pd->reg + 0x04)
+#define ICSR(pd) (pd->reg + 0x08)
+#define ICIC(pd) (pd->reg + 0x0c)
+#define ICCL(pd) (pd->reg + 0x10)
+#define ICCH(pd) (pd->reg + 0x14)
+
+/* Register bits */
+#define ICCR_ICE 0x80
+#define ICCR_RACK 0x40
+#define ICCR_TRS 0x10
+#define ICCR_BBSY 0x04
+#define ICCR_SCP 0x01
+
+#define ICSR_SCLM 0x80
+#define ICSR_SDAM 0x40
+#define SW_DONE 0x20
+#define ICSR_BUSY 0x10
+#define ICSR_AL 0x08
+#define ICSR_TACK 0x04
+#define ICSR_WAIT 0x02
+#define ICSR_DTE 0x01
+
+#define ICIC_ALE 0x08
+#define ICIC_TACKE 0x04
+#define ICIC_WAITE 0x02
+#define ICIC_DTEE 0x01
+
+static void activate_ch(struct sh_mobile_i2c_data *pd)
+{
+ /* Make sure the clock is enabled */
+ clk_enable(pd->clk);
+
+ /* Enable channel and configure rx ack */
+ iowrite8(ioread8(ICCR(pd)) | ICCR_ICE, ICCR(pd));
+
+ /* Mask all interrupts */
+ iowrite8(0, ICIC(pd));
+
+ /* Set the clock */
+ iowrite8(pd->iccl, ICCL(pd));
+ iowrite8(pd->icch, ICCH(pd));
+}
+
+static void deactivate_ch(struct sh_mobile_i2c_data *pd)
+{
+ /* Clear/disable interrupts */
+ iowrite8(0, ICSR(pd));
+ iowrite8(0, ICIC(pd));
+
+ /* Disable channel */
+ iowrite8(ioread8(ICCR(pd)) & ~ICCR_ICE, ICCR(pd));
+
+ /* Disable clock */
+ clk_disable(pd->clk);
+}
+
+static unsigned char i2c_op(struct sh_mobile_i2c_data *pd,
+ enum sh_mobile_i2c_op op, unsigned char data)
+{
+ unsigned char ret = 0;
+ unsigned long flags;
+
+ dev_dbg(pd->dev, "op %d, data in 0x%02x\n", op, data);
+
+ spin_lock_irqsave(&pd->lock, flags);
+
+ switch (op) {
+ case OP_START:
+ iowrite8(0x94, ICCR(pd));
+ break;
+ case OP_TX_ONLY:
+ iowrite8(data, ICDR(pd));
+ break;
+ case OP_TX_STOP:
+ iowrite8(data, ICDR(pd));
+ iowrite8(0x90, ICCR(pd));
+ iowrite8(ICIC_ALE | ICIC_TACKE, ICIC(pd));
+ break;
+ case OP_TX_TO_RX:
+ iowrite8(data, ICDR(pd));
+ iowrite8(0x81, ICCR(pd));
+ break;
+ case OP_RX_ONLY:
+ ret = ioread8(ICDR(pd));
+ break;
+ case OP_RX_STOP:
+ ret = ioread8(ICDR(pd));
+ iowrite8(0xc0, ICCR(pd));
+ break;
+ }
+
+ spin_unlock_irqrestore(&pd->lock, flags);
+
+ dev_dbg(pd->dev, "op %d, data out 0x%02x\n", op, ret);
+ return ret;
+}
+
+static irqreturn_t sh_mobile_i2c_isr(int irq, void *dev_id)
+{
+ struct platform_device *dev = dev_id;
+ struct sh_mobile_i2c_data *pd = platform_get_drvdata(dev);
+ struct i2c_msg *msg = pd->msg;
+ unsigned char data, sr;
+ int wakeup = 0;
+
+ sr = ioread8(ICSR(pd));
+ pd->sr |= sr;
+
+ dev_dbg(pd->dev, "i2c_isr 0x%02x 0x%02x %s %d %d!\n", sr, pd->sr,
+ (msg->flags & I2C_M_RD) ? "read" : "write",
+ pd->pos, msg->len);
+
+ if (sr & (ICSR_AL | ICSR_TACK)) {
+ iowrite8(0, ICIC(pd)); /* disable interrupts */
+ wakeup = 1;
+ goto do_wakeup;
+ }
+
+ if (pd->pos == msg->len) {
+ i2c_op(pd, OP_RX_ONLY, 0);
+ wakeup = 1;
+ goto do_wakeup;
+ }
+
+ if (pd->pos == -1) {
+ data = (msg->addr & 0x7f) << 1;
+ data |= (msg->flags & I2C_M_RD) ? 1 : 0;
+ } else
+ data = msg->buf[pd->pos];
+
+ if ((pd->pos == -1) || !(msg->flags & I2C_M_RD)) {
+ if (msg->flags & I2C_M_RD)
+ i2c_op(pd, OP_TX_TO_RX, data);
+ else if (pd->pos == (msg->len - 1)) {
+ i2c_op(pd, OP_TX_STOP, data);
+ wakeup = 1;
+ } else
+ i2c_op(pd, OP_TX_ONLY, data);
+ } else {
+ if (pd->pos == (msg->len - 1))
+ data = i2c_op(pd, OP_RX_STOP, 0);
+ else
+ data = i2c_op(pd, OP_RX_ONLY, 0);
+
+ msg->buf[pd->pos] = data;
+ }
+ pd->pos++;
+
+ do_wakeup:
+ if (wakeup) {
+ pd->sr |= SW_DONE;
+ wake_up(&pd->wait);
+ }
+
+ return IRQ_HANDLED;
+}
+
+static int start_ch(struct sh_mobile_i2c_data *pd, struct i2c_msg *usr_msg)
+{
+ /* Initialize channel registers */
+ iowrite8(ioread8(ICCR(pd)) & ~ICCR_ICE, ICCR(pd));
+
+ /* Enable channel and configure rx ack */
+ iowrite8(ioread8(ICCR(pd)) | ICCR_ICE, ICCR(pd));
+
+ /* Set the clock */
+ iowrite8(pd->iccl, ICCL(pd));
+ iowrite8(pd->icch, ICCH(pd));
+
+ pd->msg = usr_msg;
+ pd->pos = -1;
+ pd->sr = 0;
+
+ /* Enable all interrupts except wait */
+ iowrite8(ioread8(ICIC(pd)) | ICIC_ALE | ICIC_TACKE | ICIC_DTEE,
+ ICIC(pd));
+ return 0;
+}
+
+static int sh_mobile_i2c_xfer(struct i2c_adapter *adapter,
+ struct i2c_msg *msgs,
+ int num)
+{
+ struct sh_mobile_i2c_data *pd = i2c_get_adapdata(adapter);
+ struct i2c_msg *msg;
+ int err = 0;
+ u_int8_t val;
+ int i, k, retry_count;
+
+ activate_ch(pd);
+
+ /* Process all messages */
+ for (i = 0; i < num; i++) {
+ msg = &msgs[i];
+
+ err = start_ch(pd, msg);
+ if (err)
+ break;
+
+ i2c_op(pd, OP_START, 0);
+
+ /* The interrupt handler takes care of the rest... */
+ k = wait_event_timeout(pd->wait,
+ pd->sr & (ICSR_TACK | SW_DONE),
+ 5 * HZ);
+ if (!k)
+ dev_err(pd->dev, "Transfer request timed out\n");
+
+ retry_count = 10;
+again:
+ val = ioread8(ICSR(pd));
+
+ dev_dbg(pd->dev, "val 0x%02x pd->sr 0x%02x\n", val, pd->sr);
+
+ if ((val | pd->sr) & (ICSR_TACK | ICSR_AL)) {
+ err = -EIO;
+ break;
+ }
+
+ /* the interrupt handler may wake us up before the
+ * transfer is finished, so poll the hardware
+ * until we're done.
+ */
+
+ if (!(!(val & ICSR_BUSY) && (val & ICSR_SCLM) &&
+ (val & ICSR_SDAM))) {
+ msleep(1);
+ if (retry_count--)
+ goto again;
+
+ err = -EIO;
+ dev_err(pd->dev, "Polling timed out\n");
+ break;
+ }
+ }
+
+ deactivate_ch(pd);
+
+ if (!err)
+ err = num;
+ return err;
+}
+
+static u32 sh_mobile_i2c_func(struct i2c_adapter *adapter)
+{
+ return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
+}
+
+static struct i2c_algorithm sh_mobile_i2c_algorithm = {
+ .functionality = sh_mobile_i2c_func,
+ .master_xfer = sh_mobile_i2c_xfer,
+};
+
+static void sh_mobile_i2c_setup_channel(struct platform_device *dev)
+{
+ struct sh_mobile_i2c_data *pd = platform_get_drvdata(dev);
+ unsigned long peripheral_clk = clk_get_rate(pd->clk);
+ u_int32_t num;
+ u_int32_t denom;
+ u_int32_t tmp;
+
+ spin_lock_init(&pd->lock);
+ init_waitqueue_head(&pd->wait);
+
+ /* Calculate the value for iccl. From the data sheet:
+ * iccl = (p clock / transfer rate) * (L / (L + H))
+ * where L and H are the SCL low/high ratio (5/4 in this case).
+ * We also round off the result.
+ */
+ num = peripheral_clk * 5;
+ denom = NORMAL_SPEED * 9;
+ tmp = num * 10 / denom;
+ if (tmp % 10 >= 5)
+ pd->iccl = (u_int8_t)((num/denom) + 1);
+ else
+ pd->iccl = (u_int8_t)(num/denom);
+
+ /* Calculate the value for icch. From the data sheet:
+ icch = (p clock / transfer rate) * (H / (L + H)) */
+ num = peripheral_clk * 4;
+ tmp = num * 10 / denom;
+ if (tmp % 10 >= 5)
+ pd->icch = (u_int8_t)((num/denom) + 1);
+ else
+ pd->icch = (u_int8_t)(num/denom);
+}
+
+static int sh_mobile_i2c_hook_irqs(struct platform_device *dev, int hook)
+{
+ struct resource *res;
+ int ret = -ENXIO;
+ int q, m;
+ int k = 0;
+ int n = 0;
+
+ while ((res = platform_get_resource(dev, IORESOURCE_IRQ, k))) {
+ for (n = res->start; hook && n <= res->end; n++) {
+ if (request_irq(n, sh_mobile_i2c_isr, IRQF_DISABLED,
+ dev->dev.bus_id, dev))
+ goto rollback;
+ }
+ k++;
+ }
+
+ if (hook)
+ return k > 0 ? 0 : -ENOENT;
+
+ k--;
+ ret = 0;
+
+ rollback:
+ for (q = k; k >= 0; k--) {
+ for (m = n; m >= res->start; m--)
+ free_irq(m, dev);
+
+ res = platform_get_resource(dev, IORESOURCE_IRQ, k - 1);
+ m = res->end;
+ }
+
+ return ret;
+}
+
+static int sh_mobile_i2c_probe(struct platform_device *dev)
+{
+ struct sh_mobile_i2c_data *pd;
+ struct i2c_adapter *adap;
+ struct resource *res;
+ int size;
+ int ret;
+
+ pd = kzalloc(sizeof(struct sh_mobile_i2c_data), GFP_KERNEL);
+ if (pd == NULL) {
+ dev_err(&dev->dev, "cannot allocate private data\n");
+ return -ENOMEM;
+ }
+
+ pd->clk = clk_get(&dev->dev, "peripheral_clk");
+ if (IS_ERR(pd->clk)) {
+ dev_err(&dev->dev, "cannot get peripheral clock\n");
+ ret = PTR_ERR(pd->clk);
+ goto err;
+ }
+
+ ret = sh_mobile_i2c_hook_irqs(dev, 1);
+ if (ret) {
+ dev_err(&dev->dev, "cannot request IRQ\n");
+ goto err_clk;
+ }
+
+ pd->dev = &dev->dev;
+ platform_set_drvdata(dev, pd);
+
+ res = platform_get_resource(dev, IORESOURCE_MEM, 0);
+ if (res == NULL) {
+ dev_err(&dev->dev, "cannot find IO resource\n");
+ ret = -ENOENT;
+ goto err_irq;
+ }
+
+ size = (res->end - res->start) + 1;
+
+ pd->reg = ioremap(res->start, size);
+ if (pd->reg == NULL) {
+ dev_err(&dev->dev, "cannot map IO\n");
+ ret = -ENXIO;
+ goto err_irq;
+ }
+
+ /* setup the private data */
+ adap = &pd->adap;
+ i2c_set_adapdata(adap, pd);
+
+ adap->owner = THIS_MODULE;
+ adap->algo = &sh_mobile_i2c_algorithm;
+ adap->dev.parent = &dev->dev;
+ adap->retries = 5;
+ adap->nr = dev->id;
+
+ strlcpy(adap->name, dev->name, sizeof(adap->name));
+
+ sh_mobile_i2c_setup_channel(dev);
+
+ ret = i2c_add_numbered_adapter(adap);
+ if (ret < 0) {
+ dev_err(&dev->dev, "cannot add numbered adapter\n");
+ goto err_all;
+ }
+
+ return 0;
+
+ err_all:
+ iounmap(pd->reg);
+ err_irq:
+ sh_mobile_i2c_hook_irqs(dev, 0);
+ err_clk:
+ clk_put(pd->clk);
+ err:
+ kfree(pd);
+ return ret;
+}
+
+static int sh_mobile_i2c_remove(struct platform_device *dev)
+{
+ struct sh_mobile_i2c_data *pd = platform_get_drvdata(dev);
+
+ i2c_del_adapter(&pd->adap);
+ iounmap(pd->reg);
+ sh_mobile_i2c_hook_irqs(dev, 0);
+ clk_put(pd->clk);
+ kfree(pd);
+ return 0;
+}
+
+static struct platform_driver sh_mobile_i2c_driver = {
+ .driver = {
+ .name = "i2c-sh_mobile",
+ .owner = THIS_MODULE,
+ },
+ .probe = sh_mobile_i2c_probe,
+ .remove = sh_mobile_i2c_remove,
+};
+
+static int __init sh_mobile_i2c_adap_init(void)
+{
+ return platform_driver_register(&sh_mobile_i2c_driver);
+}
+
+static void __exit sh_mobile_i2c_adap_exit(void)
+{
+ platform_driver_unregister(&sh_mobile_i2c_driver);
+}
+
+module_init(sh_mobile_i2c_adap_init);
+module_exit(sh_mobile_i2c_adap_exit);
+
+MODULE_DESCRIPTION("SuperH Mobile I2C Bus Controller driver");
+MODULE_AUTHOR("Magnus Damm");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/i2c/busses/i2c-simtec.c b/drivers/i2c/busses/i2c-simtec.c
index 10af8d3..042fda2 100644
--- a/drivers/i2c/busses/i2c-simtec.c
+++ b/drivers/i2c/busses/i2c-simtec.c
@@ -159,6 +159,9 @@
/* device driver */
+/* work with hotplug and coldplug */
+MODULE_ALIAS("platform:simtec-i2c");
+
static struct platform_driver simtec_i2c_driver = {
.driver = {
.name = "simtec-i2c",
diff --git a/drivers/i2c/busses/i2c-versatile.c b/drivers/i2c/busses/i2c-versatile.c
index 081d957..4678bab 100644
--- a/drivers/i2c/busses/i2c-versatile.c
+++ b/drivers/i2c/busses/i2c-versatile.c
@@ -151,3 +151,4 @@
MODULE_DESCRIPTION("ARM Versatile I2C bus driver");
MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:versatile-i2c");
diff --git a/drivers/i2c/busses/scx200_acb.c b/drivers/i2c/busses/scx200_acb.c
index f5e7a70..61abe0f 100644
--- a/drivers/i2c/busses/scx200_acb.c
+++ b/drivers/i2c/busses/scx200_acb.c
@@ -527,7 +527,7 @@
if (iface == NULL)
return -ENOMEM;
- if (request_region(base, 8, iface->adapter.name) == 0) {
+ if (!request_region(base, 8, iface->adapter.name)) {
printk(KERN_ERR NAME ": can't allocate io 0x%lx-0x%lx\n",
base, base + 8 - 1);
rc = -EBUSY;
diff --git a/drivers/i2c/chips/isp1301_omap.c b/drivers/i2c/chips/isp1301_omap.c
index 2a31601..b1b45dd 100644
--- a/drivers/i2c/chips/isp1301_omap.c
+++ b/drivers/i2c/chips/isp1301_omap.c
@@ -658,7 +658,7 @@
OTG_CTRL_REG |= OTG_PULLUP;
}
- check_state(isp, __FUNCTION__);
+ check_state(isp, __func__);
dump_regs(isp, "otg->isp1301");
}
@@ -782,7 +782,7 @@
if (otg_ctrl & OTG_DRIVER_SEL) {
switch (isp->otg.state) {
case OTG_STATE_A_IDLE:
- b_idle(isp, __FUNCTION__);
+ b_idle(isp, __func__);
break;
default:
break;
@@ -826,7 +826,7 @@
isp->otg.host->otg_port);
}
- check_state(isp, __FUNCTION__);
+ check_state(isp, __func__);
return ret;
}
@@ -837,7 +837,7 @@
if (!otg_dev)
return -ENODEV;
- dump_regs(isp, __FUNCTION__);
+ dump_regs(isp, __func__);
/* some of these values are board-specific... */
OTG_SYSCON_2_REG |= OTG_EN
/* for B-device: */
@@ -853,9 +853,9 @@
update_otg1(isp, isp1301_get_u8(isp, ISP1301_INTERRUPT_SOURCE));
update_otg2(isp, isp1301_get_u8(isp, ISP1301_OTG_STATUS));
- check_state(isp, __FUNCTION__);
+ check_state(isp, __func__);
pr_debug("otg: %s, %s %06x\n",
- state_name(isp), __FUNCTION__, OTG_CTRL_REG);
+ state_name(isp), __func__, OTG_CTRL_REG);
OTG_IRQ_EN_REG = DRIVER_SWITCH | OPRT_CHG
| B_SRP_TMROUT | B_HNP_FAIL
@@ -1041,11 +1041,11 @@
OTG1_DP_PULLDOWN);
isp1301_clear_bits(isp, ISP1301_OTG_CONTROL_1,
OTG1_DP_PULLUP);
- dump_regs(isp, __FUNCTION__);
+ dump_regs(isp, __func__);
#endif
/* FALLTHROUGH */
case OTG_STATE_B_SRP_INIT:
- b_idle(isp, __FUNCTION__);
+ b_idle(isp, __func__);
OTG_CTRL_REG &= OTG_CTRL_REG & OTG_XCEIV_OUTPUTS;
/* FALLTHROUGH */
case OTG_STATE_B_IDLE:
@@ -1077,7 +1077,7 @@
*/
update_otg1(isp, isp_stat);
update_otg2(isp, isp_bstat);
- check_state(isp, __FUNCTION__);
+ check_state(isp, __func__);
#endif
dump_regs(isp, "isp1301->otg");
@@ -1310,7 +1310,7 @@
*/
isp1301_set_bits(isp, ISP1301_OTG_CONTROL_1, OTG1_VBUS_DRV);
- dump_regs(isp, __FUNCTION__);
+ dump_regs(isp, __func__);
return 0;
@@ -1365,7 +1365,7 @@
isp1301_set_bits(isp, ISP1301_INTERRUPT_FALLING,
INTR_VBUS_VLD);
dev_info(&isp->client.dev, "B-Peripheral sessions ok\n");
- dump_regs(isp, __FUNCTION__);
+ dump_regs(isp, __func__);
/* If this has a Mini-AB connector, this mode is highly
* nonstandard ... but can be handy for testing, so long
@@ -1416,7 +1416,7 @@
pr_debug("otg: SRP, %s ... %06x\n", state_name(isp), OTG_CTRL_REG);
#ifdef CONFIG_USB_OTG
- check_state(isp, __FUNCTION__);
+ check_state(isp, __func__);
#endif
return 0;
}
@@ -1463,7 +1463,7 @@
}
pr_debug("otg: HNP %s, %06x ...\n",
state_name(isp), OTG_CTRL_REG);
- check_state(isp, __FUNCTION__);
+ check_state(isp, __func__);
return 0;
#else
/* srp-only */
@@ -1601,7 +1601,7 @@
update_otg2(isp, isp1301_get_u8(isp, ISP1301_OTG_STATUS));
#endif
- dump_regs(isp, __FUNCTION__);
+ dump_regs(isp, __func__);
#ifdef VERBOSE
mod_timer(&isp->timer, jiffies + TIMER_JIFFIES);
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index e186df6..6c7fa8d 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -1506,7 +1506,7 @@
read_write = I2C_SMBUS_READ;
if (data->block[0] > I2C_SMBUS_BLOCK_MAX) {
dev_err(&adapter->dev, "%s called with invalid "
- "block proc call size (%d)\n", __FUNCTION__,
+ "block proc call size (%d)\n", __func__,
data->block[0]);
return -1;
}
diff --git a/drivers/i2c/i2c-dev.c b/drivers/i2c/i2c-dev.c
index 393e679..d34c14c 100644
--- a/drivers/i2c/i2c-dev.c
+++ b/drivers/i2c/i2c-dev.c
@@ -200,16 +200,176 @@
return device_for_each_child(&adapter->dev, &addr, i2cdev_check);
}
+static noinline int i2cdev_ioctl_rdrw(struct i2c_client *client,
+ unsigned long arg)
+{
+ struct i2c_rdwr_ioctl_data rdwr_arg;
+ struct i2c_msg *rdwr_pa;
+ u8 __user **data_ptrs;
+ int i, res;
+
+ if (copy_from_user(&rdwr_arg,
+ (struct i2c_rdwr_ioctl_data __user *)arg,
+ sizeof(rdwr_arg)))
+ return -EFAULT;
+
+ /* Put an arbitrary limit on the number of messages that can
+ * be sent at once */
+ if (rdwr_arg.nmsgs > I2C_RDRW_IOCTL_MAX_MSGS)
+ return -EINVAL;
+
+ rdwr_pa = (struct i2c_msg *)
+ kmalloc(rdwr_arg.nmsgs * sizeof(struct i2c_msg),
+ GFP_KERNEL);
+ if (!rdwr_pa)
+ return -ENOMEM;
+
+ if (copy_from_user(rdwr_pa, rdwr_arg.msgs,
+ rdwr_arg.nmsgs * sizeof(struct i2c_msg))) {
+ kfree(rdwr_pa);
+ return -EFAULT;
+ }
+
+ data_ptrs = kmalloc(rdwr_arg.nmsgs * sizeof(u8 __user *), GFP_KERNEL);
+ if (data_ptrs == NULL) {
+ kfree(rdwr_pa);
+ return -ENOMEM;
+ }
+
+ res = 0;
+ for (i = 0; i < rdwr_arg.nmsgs; i++) {
+ /* Limit the size of the message to a sane amount;
+ * and don't let length change either. */
+ if ((rdwr_pa[i].len > 8192) ||
+ (rdwr_pa[i].flags & I2C_M_RECV_LEN)) {
+ res = -EINVAL;
+ break;
+ }
+ data_ptrs[i] = (u8 __user *)rdwr_pa[i].buf;
+ rdwr_pa[i].buf = kmalloc(rdwr_pa[i].len, GFP_KERNEL);
+ if (rdwr_pa[i].buf == NULL) {
+ res = -ENOMEM;
+ break;
+ }
+ if (copy_from_user(rdwr_pa[i].buf, data_ptrs[i],
+ rdwr_pa[i].len)) {
+ ++i; /* Needs to be kfreed too */
+ res = -EFAULT;
+ break;
+ }
+ }
+ if (res < 0) {
+ int j;
+ for (j = 0; j < i; ++j)
+ kfree(rdwr_pa[j].buf);
+ kfree(data_ptrs);
+ kfree(rdwr_pa);
+ return res;
+ }
+
+ res = i2c_transfer(client->adapter, rdwr_pa, rdwr_arg.nmsgs);
+ while (i-- > 0) {
+ if (res >= 0 && (rdwr_pa[i].flags & I2C_M_RD)) {
+ if (copy_to_user(data_ptrs[i], rdwr_pa[i].buf,
+ rdwr_pa[i].len))
+ res = -EFAULT;
+ }
+ kfree(rdwr_pa[i].buf);
+ }
+ kfree(data_ptrs);
+ kfree(rdwr_pa);
+ return res;
+}
+
+static noinline int i2cdev_ioctl_smbus(struct i2c_client *client,
+ unsigned long arg)
+{
+ struct i2c_smbus_ioctl_data data_arg;
+ union i2c_smbus_data temp;
+ int datasize, res;
+
+ if (copy_from_user(&data_arg,
+ (struct i2c_smbus_ioctl_data __user *) arg,
+ sizeof(struct i2c_smbus_ioctl_data)))
+ return -EFAULT;
+ if ((data_arg.size != I2C_SMBUS_BYTE) &&
+ (data_arg.size != I2C_SMBUS_QUICK) &&
+ (data_arg.size != I2C_SMBUS_BYTE_DATA) &&
+ (data_arg.size != I2C_SMBUS_WORD_DATA) &&
+ (data_arg.size != I2C_SMBUS_PROC_CALL) &&
+ (data_arg.size != I2C_SMBUS_BLOCK_DATA) &&
+ (data_arg.size != I2C_SMBUS_I2C_BLOCK_BROKEN) &&
+ (data_arg.size != I2C_SMBUS_I2C_BLOCK_DATA) &&
+ (data_arg.size != I2C_SMBUS_BLOCK_PROC_CALL)) {
+ dev_dbg(&client->adapter->dev,
+ "size out of range (%x) in ioctl I2C_SMBUS.\n",
+ data_arg.size);
+ return -EINVAL;
+ }
+ /* Note that I2C_SMBUS_READ and I2C_SMBUS_WRITE are 0 and 1,
+ so the check is valid if size==I2C_SMBUS_QUICK too. */
+ if ((data_arg.read_write != I2C_SMBUS_READ) &&
+ (data_arg.read_write != I2C_SMBUS_WRITE)) {
+ dev_dbg(&client->adapter->dev,
+ "read_write out of range (%x) in ioctl I2C_SMBUS.\n",
+ data_arg.read_write);
+ return -EINVAL;
+ }
+
+ /* Note that command values are always valid! */
+
+ if ((data_arg.size == I2C_SMBUS_QUICK) ||
+ ((data_arg.size == I2C_SMBUS_BYTE) &&
+ (data_arg.read_write == I2C_SMBUS_WRITE)))
+ /* These are special: we do not use data */
+ return i2c_smbus_xfer(client->adapter, client->addr,
+ client->flags, data_arg.read_write,
+ data_arg.command, data_arg.size, NULL);
+
+ if (data_arg.data == NULL) {
+ dev_dbg(&client->adapter->dev,
+ "data is NULL pointer in ioctl I2C_SMBUS.\n");
+ return -EINVAL;
+ }
+
+ if ((data_arg.size == I2C_SMBUS_BYTE_DATA) ||
+ (data_arg.size == I2C_SMBUS_BYTE))
+ datasize = sizeof(data_arg.data->byte);
+ else if ((data_arg.size == I2C_SMBUS_WORD_DATA) ||
+ (data_arg.size == I2C_SMBUS_PROC_CALL))
+ datasize = sizeof(data_arg.data->word);
+ else /* size == smbus block, i2c block, or block proc. call */
+ datasize = sizeof(data_arg.data->block);
+
+ if ((data_arg.size == I2C_SMBUS_PROC_CALL) ||
+ (data_arg.size == I2C_SMBUS_BLOCK_PROC_CALL) ||
+ (data_arg.size == I2C_SMBUS_I2C_BLOCK_DATA) ||
+ (data_arg.read_write == I2C_SMBUS_WRITE)) {
+ if (copy_from_user(&temp, data_arg.data, datasize))
+ return -EFAULT;
+ }
+ if (data_arg.size == I2C_SMBUS_I2C_BLOCK_BROKEN) {
+ /* Convert old I2C block commands to the new
+ convention. This preserves binary compatibility. */
+ data_arg.size = I2C_SMBUS_I2C_BLOCK_DATA;
+ if (data_arg.read_write == I2C_SMBUS_READ)
+ temp.block[0] = I2C_SMBUS_BLOCK_MAX;
+ }
+ res = i2c_smbus_xfer(client->adapter, client->addr, client->flags,
+ data_arg.read_write, data_arg.command, data_arg.size, &temp);
+ if (!res && ((data_arg.size == I2C_SMBUS_PROC_CALL) ||
+ (data_arg.size == I2C_SMBUS_BLOCK_PROC_CALL) ||
+ (data_arg.read_write == I2C_SMBUS_READ))) {
+ if (copy_to_user(data_arg.data, &temp, datasize))
+ return -EFAULT;
+ }
+ return res;
+}
+
static int i2cdev_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg)
{
struct i2c_client *client = (struct i2c_client *)file->private_data;
- struct i2c_rdwr_ioctl_data rdwr_arg;
- struct i2c_smbus_ioctl_data data_arg;
- union i2c_smbus_data temp;
- struct i2c_msg *rdwr_pa;
- u8 __user **data_ptrs;
- int i,datasize,res;
unsigned long funcs;
dev_dbg(&client->adapter->dev, "ioctl, cmd=0x%02x, arg=0x%02lx\n",
@@ -253,164 +413,11 @@
return put_user(funcs, (unsigned long __user *)arg);
case I2C_RDWR:
- if (copy_from_user(&rdwr_arg,
- (struct i2c_rdwr_ioctl_data __user *)arg,
- sizeof(rdwr_arg)))
- return -EFAULT;
-
- /* Put an arbitrary limit on the number of messages that can
- * be sent at once */
- if (rdwr_arg.nmsgs > I2C_RDRW_IOCTL_MAX_MSGS)
- return -EINVAL;
-
- rdwr_pa = (struct i2c_msg *)
- kmalloc(rdwr_arg.nmsgs * sizeof(struct i2c_msg),
- GFP_KERNEL);
-
- if (rdwr_pa == NULL) return -ENOMEM;
-
- if (copy_from_user(rdwr_pa, rdwr_arg.msgs,
- rdwr_arg.nmsgs * sizeof(struct i2c_msg))) {
- kfree(rdwr_pa);
- return -EFAULT;
- }
-
- data_ptrs = kmalloc(rdwr_arg.nmsgs * sizeof(u8 __user *), GFP_KERNEL);
- if (data_ptrs == NULL) {
- kfree(rdwr_pa);
- return -ENOMEM;
- }
-
- res = 0;
- for( i=0; i<rdwr_arg.nmsgs; i++ ) {
- /* Limit the size of the message to a sane amount;
- * and don't let length change either. */
- if ((rdwr_pa[i].len > 8192) ||
- (rdwr_pa[i].flags & I2C_M_RECV_LEN)) {
- res = -EINVAL;
- break;
- }
- data_ptrs[i] = (u8 __user *)rdwr_pa[i].buf;
- rdwr_pa[i].buf = kmalloc(rdwr_pa[i].len, GFP_KERNEL);
- if(rdwr_pa[i].buf == NULL) {
- res = -ENOMEM;
- break;
- }
- if(copy_from_user(rdwr_pa[i].buf,
- data_ptrs[i],
- rdwr_pa[i].len)) {
- ++i; /* Needs to be kfreed too */
- res = -EFAULT;
- break;
- }
- }
- if (res < 0) {
- int j;
- for (j = 0; j < i; ++j)
- kfree(rdwr_pa[j].buf);
- kfree(data_ptrs);
- kfree(rdwr_pa);
- return res;
- }
-
- res = i2c_transfer(client->adapter,
- rdwr_pa,
- rdwr_arg.nmsgs);
- while(i-- > 0) {
- if( res>=0 && (rdwr_pa[i].flags & I2C_M_RD)) {
- if(copy_to_user(
- data_ptrs[i],
- rdwr_pa[i].buf,
- rdwr_pa[i].len)) {
- res = -EFAULT;
- }
- }
- kfree(rdwr_pa[i].buf);
- }
- kfree(data_ptrs);
- kfree(rdwr_pa);
- return res;
+ return i2cdev_ioctl_rdrw(client, arg);
case I2C_SMBUS:
- if (copy_from_user(&data_arg,
- (struct i2c_smbus_ioctl_data __user *) arg,
- sizeof(struct i2c_smbus_ioctl_data)))
- return -EFAULT;
- if ((data_arg.size != I2C_SMBUS_BYTE) &&
- (data_arg.size != I2C_SMBUS_QUICK) &&
- (data_arg.size != I2C_SMBUS_BYTE_DATA) &&
- (data_arg.size != I2C_SMBUS_WORD_DATA) &&
- (data_arg.size != I2C_SMBUS_PROC_CALL) &&
- (data_arg.size != I2C_SMBUS_BLOCK_DATA) &&
- (data_arg.size != I2C_SMBUS_I2C_BLOCK_BROKEN) &&
- (data_arg.size != I2C_SMBUS_I2C_BLOCK_DATA) &&
- (data_arg.size != I2C_SMBUS_BLOCK_PROC_CALL)) {
- dev_dbg(&client->adapter->dev,
- "size out of range (%x) in ioctl I2C_SMBUS.\n",
- data_arg.size);
- return -EINVAL;
- }
- /* Note that I2C_SMBUS_READ and I2C_SMBUS_WRITE are 0 and 1,
- so the check is valid if size==I2C_SMBUS_QUICK too. */
- if ((data_arg.read_write != I2C_SMBUS_READ) &&
- (data_arg.read_write != I2C_SMBUS_WRITE)) {
- dev_dbg(&client->adapter->dev,
- "read_write out of range (%x) in ioctl I2C_SMBUS.\n",
- data_arg.read_write);
- return -EINVAL;
- }
+ return i2cdev_ioctl_smbus(client, arg);
- /* Note that command values are always valid! */
-
- if ((data_arg.size == I2C_SMBUS_QUICK) ||
- ((data_arg.size == I2C_SMBUS_BYTE) &&
- (data_arg.read_write == I2C_SMBUS_WRITE)))
- /* These are special: we do not use data */
- return i2c_smbus_xfer(client->adapter, client->addr,
- client->flags,
- data_arg.read_write,
- data_arg.command,
- data_arg.size, NULL);
-
- if (data_arg.data == NULL) {
- dev_dbg(&client->adapter->dev,
- "data is NULL pointer in ioctl I2C_SMBUS.\n");
- return -EINVAL;
- }
-
- if ((data_arg.size == I2C_SMBUS_BYTE_DATA) ||
- (data_arg.size == I2C_SMBUS_BYTE))
- datasize = sizeof(data_arg.data->byte);
- else if ((data_arg.size == I2C_SMBUS_WORD_DATA) ||
- (data_arg.size == I2C_SMBUS_PROC_CALL))
- datasize = sizeof(data_arg.data->word);
- else /* size == smbus block, i2c block, or block proc. call */
- datasize = sizeof(data_arg.data->block);
-
- if ((data_arg.size == I2C_SMBUS_PROC_CALL) ||
- (data_arg.size == I2C_SMBUS_BLOCK_PROC_CALL) ||
- (data_arg.size == I2C_SMBUS_I2C_BLOCK_DATA) ||
- (data_arg.read_write == I2C_SMBUS_WRITE)) {
- if (copy_from_user(&temp, data_arg.data, datasize))
- return -EFAULT;
- }
- if (data_arg.size == I2C_SMBUS_I2C_BLOCK_BROKEN) {
- /* Convert old I2C block commands to the new
- convention. This preserves binary compatibility. */
- data_arg.size = I2C_SMBUS_I2C_BLOCK_DATA;
- if (data_arg.read_write == I2C_SMBUS_READ)
- temp.block[0] = I2C_SMBUS_BLOCK_MAX;
- }
- res = i2c_smbus_xfer(client->adapter,client->addr,client->flags,
- data_arg.read_write,
- data_arg.command,data_arg.size,&temp);
- if (! res && ((data_arg.size == I2C_SMBUS_PROC_CALL) ||
- (data_arg.size == I2C_SMBUS_BLOCK_PROC_CALL) ||
- (data_arg.read_write == I2C_SMBUS_READ))) {
- if (copy_to_user(data_arg.data, &temp, datasize))
- return -EFAULT;
- }
- return res;
case I2C_RETRIES:
client->adapter->retries = arg;
break;
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index bb94ce7..297a48f 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -360,4 +360,16 @@
driver (SCSI/ATA) which supports enclosures
or a SCSI enclosure device (SES) to use these services.
+config SGI_XP
+ tristate "Support communication between SGI SSIs"
+ depends on IA64_GENERIC || IA64_SGI_SN2
+ select IA64_UNCACHED_ALLOCATOR if IA64_GENERIC || IA64_SGI_SN2
+ select GENERIC_ALLOCATOR if IA64_GENERIC || IA64_SGI_SN2
+ ---help---
+ An SGI machine can be divided into multiple Single System
+ Images which act independently of each other and have
+ hardware based memory protection from the others. Enabling
+ this feature will allow for direct communication between SSIs
+ based on a network adapter and DMA messaging.
+
endif # MISC_DEVICES
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index 4581b25..5914da4 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -24,3 +24,4 @@
obj-$(CONFIG_INTEL_MENLOW) += intel_menlow.o
obj-$(CONFIG_ENCLOSURE_SERVICES) += enclosure.o
obj-$(CONFIG_KGDB_TESTS) += kgdbts.o
+obj-$(CONFIG_SGI_XP) += sgi-xp/
diff --git a/drivers/misc/sgi-xp/Makefile b/drivers/misc/sgi-xp/Makefile
new file mode 100644
index 0000000..b6e40a7
--- /dev/null
+++ b/drivers/misc/sgi-xp/Makefile
@@ -0,0 +1,11 @@
+#
+# Makefile for SGI's XP devices.
+#
+
+obj-$(CONFIG_SGI_XP) += xp.o
+xp-y := xp_main.o xp_nofault.o
+
+obj-$(CONFIG_SGI_XP) += xpc.o
+xpc-y := xpc_main.o xpc_channel.o xpc_partition.o
+
+obj-$(CONFIG_SGI_XP) += xpnet.o
diff --git a/include/asm-ia64/sn/xp.h b/drivers/misc/sgi-xp/xp.h
similarity index 91%
rename from include/asm-ia64/sn/xp.h
rename to drivers/misc/sgi-xp/xp.h
index f7711b3..5515234 100644
--- a/include/asm-ia64/sn/xp.h
+++ b/drivers/misc/sgi-xp/xp.h
@@ -3,18 +3,15 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (C) 2004-2005 Silicon Graphics, Inc. All rights reserved.
+ * Copyright (C) 2004-2008 Silicon Graphics, Inc. All rights reserved.
*/
-
/*
* External Cross Partition (XP) structures and defines.
*/
-
-#ifndef _ASM_IA64_SN_XP_H
-#define _ASM_IA64_SN_XP_H
-
+#ifndef _DRIVERS_MISC_SGIXP_XP_H
+#define _DRIVERS_MISC_SGIXP_XP_H
#include <linux/cache.h>
#include <linux/hardirq.h>
@@ -22,14 +19,12 @@
#include <asm/sn/types.h>
#include <asm/sn/bte.h>
-
#ifdef USE_DBUG_ON
#define DBUG_ON(condition) BUG_ON(condition)
#else
#define DBUG_ON(condition)
#endif
-
/*
* Define the maximum number of logically defined partitions the system
* can support. It is constrained by the maximum number of hardware
@@ -43,7 +38,6 @@
*/
#define XP_MAX_PARTITIONS 64
-
/*
* Define the number of u64s required to represent all the C-brick nasids
* as a bitmap. The cross-partition kernel modules deal only with
@@ -54,7 +48,6 @@
#define XP_NASID_MASK_BYTES ((XP_MAX_PHYSNODE_ID + 7) / 8)
#define XP_NASID_MASK_WORDS ((XP_MAX_PHYSNODE_ID + 63) / 64)
-
/*
* Wrapper for bte_copy() that should it return a failure status will retry
* the bte_copy() once in the hope that the failure was due to a temporary
@@ -74,7 +67,6 @@
bte_result_t ret;
u64 pdst = ia64_tpa(vdst);
-
/*
* Ensure that the physically mapped memory is contiguous.
*
@@ -87,16 +79,15 @@
ret = bte_copy(src, pdst, len, mode, notification);
if ((ret != BTE_SUCCESS) && BTE_ERROR_RETRY(ret)) {
- if (!in_interrupt()) {
+ if (!in_interrupt())
cond_resched();
- }
+
ret = bte_copy(src, pdst, len, mode, notification);
}
return ret;
}
-
/*
* XPC establishes channel connections between the local partition and any
* other partition that is currently up. Over these channels, kernel-level
@@ -122,7 +113,6 @@
#error XPC_NCHANNELS exceeds MAXIMUM allowed.
#endif
-
/*
* The format of an XPC message is as follows:
*
@@ -160,12 +150,10 @@
u64 payload; /* user defined portion of message */
};
-
#define XPC_MSG_PAYLOAD_OFFSET (u64) (&((struct xpc_msg *)0)->payload)
#define XPC_MSG_SIZE(_payload_size) \
L1_CACHE_ALIGN(XPC_MSG_PAYLOAD_OFFSET + (_payload_size))
-
/*
* Define the return values and values passed to user's callout functions.
* (It is important to add new value codes at the end just preceding
@@ -267,10 +255,9 @@
/* 115: BTE end */
xpcBteSh2End = xpcBteSh2Start + BTEFAIL_SH2_ALL,
- xpcUnknownReason /* 116: unknown reason -- must be last in list */
+ xpcUnknownReason /* 116: unknown reason - must be last in enum */
};
-
/*
* Define the callout function types used by XPC to update the user on
* connection activity and state changes (via the user function registered by
@@ -375,12 +362,11 @@
* =====================+================================+=====================
*/
-typedef void (*xpc_channel_func)(enum xpc_retval reason, partid_t partid,
- int ch_number, void *data, void *key);
+typedef void (*xpc_channel_func) (enum xpc_retval reason, partid_t partid,
+ int ch_number, void *data, void *key);
-typedef void (*xpc_notify_func)(enum xpc_retval reason, partid_t partid,
- int ch_number, void *key);
-
+typedef void (*xpc_notify_func) (enum xpc_retval reason, partid_t partid,
+ int ch_number, void *key);
/*
* The following is a registration entry. There is a global array of these,
@@ -398,50 +384,45 @@
*/
struct xpc_registration {
struct mutex mutex;
- xpc_channel_func func; /* function to call */
- void *key; /* pointer to user's key */
- u16 nentries; /* #of msg entries in local msg queue */
- u16 msg_size; /* message queue's message size */
- u32 assigned_limit; /* limit on #of assigned kthreads */
- u32 idle_limit; /* limit on #of idle kthreads */
+ xpc_channel_func func; /* function to call */
+ void *key; /* pointer to user's key */
+ u16 nentries; /* #of msg entries in local msg queue */
+ u16 msg_size; /* message queue's message size */
+ u32 assigned_limit; /* limit on #of assigned kthreads */
+ u32 idle_limit; /* limit on #of idle kthreads */
} ____cacheline_aligned;
-
#define XPC_CHANNEL_REGISTERED(_c) (xpc_registrations[_c].func != NULL)
-
/* the following are valid xpc_allocate() flags */
-#define XPC_WAIT 0 /* wait flag */
-#define XPC_NOWAIT 1 /* no wait flag */
-
+#define XPC_WAIT 0 /* wait flag */
+#define XPC_NOWAIT 1 /* no wait flag */
struct xpc_interface {
- void (*connect)(int);
- void (*disconnect)(int);
- enum xpc_retval (*allocate)(partid_t, int, u32, void **);
- enum xpc_retval (*send)(partid_t, int, void *);
- enum xpc_retval (*send_notify)(partid_t, int, void *,
- xpc_notify_func, void *);
- void (*received)(partid_t, int, void *);
- enum xpc_retval (*partid_to_nasids)(partid_t, void *);
+ void (*connect) (int);
+ void (*disconnect) (int);
+ enum xpc_retval (*allocate) (partid_t, int, u32, void **);
+ enum xpc_retval (*send) (partid_t, int, void *);
+ enum xpc_retval (*send_notify) (partid_t, int, void *,
+ xpc_notify_func, void *);
+ void (*received) (partid_t, int, void *);
+ enum xpc_retval (*partid_to_nasids) (partid_t, void *);
};
-
extern struct xpc_interface xpc_interface;
extern void xpc_set_interface(void (*)(int),
- void (*)(int),
- enum xpc_retval (*)(partid_t, int, u32, void **),
- enum xpc_retval (*)(partid_t, int, void *),
- enum xpc_retval (*)(partid_t, int, void *, xpc_notify_func,
- void *),
- void (*)(partid_t, int, void *),
- enum xpc_retval (*)(partid_t, void *));
+ void (*)(int),
+ enum xpc_retval (*)(partid_t, int, u32, void **),
+ enum xpc_retval (*)(partid_t, int, void *),
+ enum xpc_retval (*)(partid_t, int, void *,
+ xpc_notify_func, void *),
+ void (*)(partid_t, int, void *),
+ enum xpc_retval (*)(partid_t, void *));
extern void xpc_clear_interface(void);
-
extern enum xpc_retval xpc_connect(int, xpc_channel_func, void *, u16,
- u16, u32, u32);
+ u16, u32, u32);
extern void xpc_disconnect(int);
static inline enum xpc_retval
@@ -458,7 +439,7 @@
static inline enum xpc_retval
xpc_send_notify(partid_t partid, int ch_number, void *payload,
- xpc_notify_func func, void *key)
+ xpc_notify_func func, void *key)
{
return xpc_interface.send_notify(partid, ch_number, payload, func, key);
}
@@ -475,11 +456,8 @@
return xpc_interface.partid_to_nasids(partid, nasids);
}
-
extern u64 xp_nofault_PIOR_target;
extern int xp_nofault_PIOR(void *);
extern int xp_error_PIOR(void);
-
-#endif /* _ASM_IA64_SN_XP_H */
-
+#endif /* _DRIVERS_MISC_SGIXP_XP_H */
diff --git a/arch/ia64/sn/kernel/xp_main.c b/drivers/misc/sgi-xp/xp_main.c
similarity index 69%
rename from arch/ia64/sn/kernel/xp_main.c
rename to drivers/misc/sgi-xp/xp_main.c
index b7ea466..1fbf99b 100644
--- a/arch/ia64/sn/kernel/xp_main.c
+++ b/drivers/misc/sgi-xp/xp_main.c
@@ -3,10 +3,9 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (c) 2004-2005 Silicon Graphics, Inc. All Rights Reserved.
+ * Copyright (c) 2004-2008 Silicon Graphics, Inc. All Rights Reserved.
*/
-
/*
* Cross Partition (XP) base.
*
@@ -15,58 +14,64 @@
*
*/
-
#include <linux/kernel.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <asm/sn/intr.h>
#include <asm/sn/sn_sal.h>
-#include <asm/sn/xp.h>
-
+#include "xp.h"
/*
- * Target of nofault PIO read.
+ * The export of xp_nofault_PIOR needs to happen here since it is defined
+ * in drivers/misc/sgi-xp/xp_nofault.S. The target of the nofault read is
+ * defined here.
*/
-u64 xp_nofault_PIOR_target;
+EXPORT_SYMBOL_GPL(xp_nofault_PIOR);
+u64 xp_nofault_PIOR_target;
+EXPORT_SYMBOL_GPL(xp_nofault_PIOR_target);
/*
* xpc_registrations[] keeps track of xpc_connect()'s done by the kernel-level
* users of XPC.
*/
struct xpc_registration xpc_registrations[XPC_NCHANNELS];
-
+EXPORT_SYMBOL_GPL(xpc_registrations);
/*
* Initialize the XPC interface to indicate that XPC isn't loaded.
*/
-static enum xpc_retval xpc_notloaded(void) { return xpcNotLoaded; }
+static enum xpc_retval
+xpc_notloaded(void)
+{
+ return xpcNotLoaded;
+}
struct xpc_interface xpc_interface = {
- (void (*)(int)) xpc_notloaded,
- (void (*)(int)) xpc_notloaded,
- (enum xpc_retval (*)(partid_t, int, u32, void **)) xpc_notloaded,
- (enum xpc_retval (*)(partid_t, int, void *)) xpc_notloaded,
- (enum xpc_retval (*)(partid_t, int, void *, xpc_notify_func, void *))
- xpc_notloaded,
- (void (*)(partid_t, int, void *)) xpc_notloaded,
- (enum xpc_retval (*)(partid_t, void *)) xpc_notloaded
+ (void (*)(int))xpc_notloaded,
+ (void (*)(int))xpc_notloaded,
+ (enum xpc_retval(*)(partid_t, int, u32, void **))xpc_notloaded,
+ (enum xpc_retval(*)(partid_t, int, void *))xpc_notloaded,
+ (enum xpc_retval(*)(partid_t, int, void *, xpc_notify_func, void *))
+ xpc_notloaded,
+ (void (*)(partid_t, int, void *))xpc_notloaded,
+ (enum xpc_retval(*)(partid_t, void *))xpc_notloaded
};
-
+EXPORT_SYMBOL_GPL(xpc_interface);
/*
* XPC calls this when it (the XPC module) has been loaded.
*/
void
-xpc_set_interface(void (*connect)(int),
- void (*disconnect)(int),
- enum xpc_retval (*allocate)(partid_t, int, u32, void **),
- enum xpc_retval (*send)(partid_t, int, void *),
- enum xpc_retval (*send_notify)(partid_t, int, void *,
- xpc_notify_func, void *),
- void (*received)(partid_t, int, void *),
- enum xpc_retval (*partid_to_nasids)(partid_t, void *))
+xpc_set_interface(void (*connect) (int),
+ void (*disconnect) (int),
+ enum xpc_retval (*allocate) (partid_t, int, u32, void **),
+ enum xpc_retval (*send) (partid_t, int, void *),
+ enum xpc_retval (*send_notify) (partid_t, int, void *,
+ xpc_notify_func, void *),
+ void (*received) (partid_t, int, void *),
+ enum xpc_retval (*partid_to_nasids) (partid_t, void *))
{
xpc_interface.connect = connect;
xpc_interface.disconnect = disconnect;
@@ -76,7 +81,7 @@
xpc_interface.received = received;
xpc_interface.partid_to_nasids = partid_to_nasids;
}
-
+EXPORT_SYMBOL_GPL(xpc_set_interface);
/*
* XPC calls this when it (the XPC module) is being unloaded.
@@ -84,20 +89,21 @@
void
xpc_clear_interface(void)
{
- xpc_interface.connect = (void (*)(int)) xpc_notloaded;
- xpc_interface.disconnect = (void (*)(int)) xpc_notloaded;
- xpc_interface.allocate = (enum xpc_retval (*)(partid_t, int, u32,
- void **)) xpc_notloaded;
- xpc_interface.send = (enum xpc_retval (*)(partid_t, int, void *))
- xpc_notloaded;
- xpc_interface.send_notify = (enum xpc_retval (*)(partid_t, int, void *,
- xpc_notify_func, void *)) xpc_notloaded;
+ xpc_interface.connect = (void (*)(int))xpc_notloaded;
+ xpc_interface.disconnect = (void (*)(int))xpc_notloaded;
+ xpc_interface.allocate = (enum xpc_retval(*)(partid_t, int, u32,
+ void **))xpc_notloaded;
+ xpc_interface.send = (enum xpc_retval(*)(partid_t, int, void *))
+ xpc_notloaded;
+ xpc_interface.send_notify = (enum xpc_retval(*)(partid_t, int, void *,
+ xpc_notify_func,
+ void *))xpc_notloaded;
xpc_interface.received = (void (*)(partid_t, int, void *))
- xpc_notloaded;
- xpc_interface.partid_to_nasids = (enum xpc_retval (*)(partid_t, void *))
- xpc_notloaded;
+ xpc_notloaded;
+ xpc_interface.partid_to_nasids = (enum xpc_retval(*)(partid_t, void *))
+ xpc_notloaded;
}
-
+EXPORT_SYMBOL_GPL(xpc_clear_interface);
/*
* Register for automatic establishment of a channel connection whenever
@@ -125,11 +131,10 @@
*/
enum xpc_retval
xpc_connect(int ch_number, xpc_channel_func func, void *key, u16 payload_size,
- u16 nentries, u32 assigned_limit, u32 idle_limit)
+ u16 nentries, u32 assigned_limit, u32 idle_limit)
{
struct xpc_registration *registration;
-
DBUG_ON(ch_number < 0 || ch_number >= XPC_NCHANNELS);
DBUG_ON(payload_size == 0 || nentries == 0);
DBUG_ON(func == NULL);
@@ -137,9 +142,8 @@
registration = &xpc_registrations[ch_number];
- if (mutex_lock_interruptible(®istration->mutex) != 0) {
+ if (mutex_lock_interruptible(®istration->mutex) != 0)
return xpcInterrupted;
- }
/* if XPC_CHANNEL_REGISTERED(ch_number) */
if (registration->func != NULL) {
@@ -161,7 +165,7 @@
return xpcSuccess;
}
-
+EXPORT_SYMBOL_GPL(xpc_connect);
/*
* Remove the registration for automatic connection of the specified channel
@@ -181,7 +185,6 @@
{
struct xpc_registration *registration;
-
DBUG_ON(ch_number < 0 || ch_number >= XPC_NCHANNELS);
registration = &xpc_registrations[ch_number];
@@ -213,19 +216,17 @@
return;
}
-
+EXPORT_SYMBOL_GPL(xpc_disconnect);
int __init
xp_init(void)
{
int ret, ch_number;
- u64 func_addr = *(u64 *) xp_nofault_PIOR;
- u64 err_func_addr = *(u64 *) xp_error_PIOR;
+ u64 func_addr = *(u64 *)xp_nofault_PIOR;
+ u64 err_func_addr = *(u64 *)xp_error_PIOR;
-
- if (!ia64_platform_is("sn2")) {
+ if (!ia64_platform_is("sn2"))
return -ENODEV;
- }
/*
* Register a nofault code region which performs a cross-partition
@@ -236,55 +237,43 @@
* least some CPUs on Shubs <= v1.2, which unfortunately we have to
* work around).
*/
- if ((ret = sn_register_nofault_code(func_addr, err_func_addr,
- err_func_addr, 1, 1)) != 0) {
+ ret = sn_register_nofault_code(func_addr, err_func_addr, err_func_addr,
+ 1, 1);
+ if (ret != 0) {
printk(KERN_ERR "XP: can't register nofault code, error=%d\n",
- ret);
+ ret);
}
/*
* Setup the nofault PIO read target. (There is no special reason why
* SH_IPI_ACCESS was selected.)
*/
- if (is_shub2()) {
+ if (is_shub2())
xp_nofault_PIOR_target = SH2_IPI_ACCESS0;
- } else {
+ else
xp_nofault_PIOR_target = SH1_IPI_ACCESS;
- }
/* initialize the connection registration mutex */
- for (ch_number = 0; ch_number < XPC_NCHANNELS; ch_number++) {
+ for (ch_number = 0; ch_number < XPC_NCHANNELS; ch_number++)
mutex_init(&xpc_registrations[ch_number].mutex);
- }
return 0;
}
-module_init(xp_init);
+module_init(xp_init);
void __exit
xp_exit(void)
{
- u64 func_addr = *(u64 *) xp_nofault_PIOR;
- u64 err_func_addr = *(u64 *) xp_error_PIOR;
-
+ u64 func_addr = *(u64 *)xp_nofault_PIOR;
+ u64 err_func_addr = *(u64 *)xp_error_PIOR;
/* unregister the PIO read nofault code region */
- (void) sn_register_nofault_code(func_addr, err_func_addr,
- err_func_addr, 1, 0);
+ (void)sn_register_nofault_code(func_addr, err_func_addr,
+ err_func_addr, 1, 0);
}
-module_exit(xp_exit);
+module_exit(xp_exit);
MODULE_AUTHOR("Silicon Graphics, Inc.");
MODULE_DESCRIPTION("Cross Partition (XP) base");
MODULE_LICENSE("GPL");
-
-EXPORT_SYMBOL(xp_nofault_PIOR);
-EXPORT_SYMBOL(xp_nofault_PIOR_target);
-EXPORT_SYMBOL(xpc_registrations);
-EXPORT_SYMBOL(xpc_interface);
-EXPORT_SYMBOL(xpc_clear_interface);
-EXPORT_SYMBOL(xpc_set_interface);
-EXPORT_SYMBOL(xpc_connect);
-EXPORT_SYMBOL(xpc_disconnect);
-
diff --git a/arch/ia64/sn/kernel/xp_nofault.S b/drivers/misc/sgi-xp/xp_nofault.S
similarity index 94%
rename from arch/ia64/sn/kernel/xp_nofault.S
rename to drivers/misc/sgi-xp/xp_nofault.S
index 98e7c7d..e38d433 100644
--- a/arch/ia64/sn/kernel/xp_nofault.S
+++ b/drivers/misc/sgi-xp/xp_nofault.S
@@ -3,10 +3,9 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (c) 2004-2007 Silicon Graphics, Inc. All Rights Reserved.
+ * Copyright (c) 2004-2008 Silicon Graphics, Inc. All Rights Reserved.
*/
-
/*
* The xp_nofault_PIOR function takes a pointer to a remote PIO register
* and attempts to load and consume a value from it. This function
diff --git a/include/asm-ia64/sn/xpc.h b/drivers/misc/sgi-xp/xpc.h
similarity index 75%
rename from include/asm-ia64/sn/xpc.h
rename to drivers/misc/sgi-xp/xpc.h
index 3c0900a..9eb6d4a 100644
--- a/include/asm-ia64/sn/xpc.h
+++ b/drivers/misc/sgi-xp/xpc.h
@@ -3,17 +3,15 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (c) 2004-2007 Silicon Graphics, Inc. All Rights Reserved.
+ * Copyright (c) 2004-2008 Silicon Graphics, Inc. All Rights Reserved.
*/
-
/*
* Cross Partition Communication (XPC) structures and macros.
*/
-#ifndef _ASM_IA64_SN_XPC_H
-#define _ASM_IA64_SN_XPC_H
-
+#ifndef _DRIVERS_MISC_SGIXP_XPC_H
+#define _DRIVERS_MISC_SGIXP_XPC_H
#include <linux/interrupt.h>
#include <linux/sysctl.h>
@@ -27,8 +25,7 @@
#include <asm/sn/addrs.h>
#include <asm/sn/mspec.h>
#include <asm/sn/shub_mmr.h>
-#include <asm/sn/xp.h>
-
+#include "xp.h"
/*
* XPC Version numbers consist of a major and minor number. XPC can always
@@ -39,7 +36,6 @@
#define XPC_VERSION_MAJOR(_v) ((_v) >> 4)
#define XPC_VERSION_MINOR(_v) ((_v) & 0xf)
-
/*
* The next macros define word or bit representations for given
* C-brick nasid in either the SAL provided bit array representing
@@ -67,7 +63,6 @@
/* define the process name of the discovery thread */
#define XPC_DISCOVERY_THREAD_NAME "xpc_discovery"
-
/*
* the reserved page
*
@@ -115,16 +110,16 @@
u8 partid; /* SAL: partition ID */
u8 version;
u8 pad1[6]; /* align to next u64 in cacheline */
- volatile u64 vars_pa;
+ u64 vars_pa; /* physical address of struct xpc_vars */
struct timespec stamp; /* time when reserved page was setup by XPC */
u64 pad2[9]; /* align to last u64 in cacheline */
u64 nasids_size; /* SAL: size of each nasid mask in bytes */
};
-#define XPC_RP_VERSION _XPC_VERSION(1,1) /* version 1.1 of the reserved page */
+#define XPC_RP_VERSION _XPC_VERSION(1, 1) /* version 1.1 of the reserved page */
#define XPC_SUPPORTS_RP_STAMP(_version) \
- (_version >= _XPC_VERSION(1,1))
+ (_version >= _XPC_VERSION(1, 1))
/*
* compare stamps - the return value is:
@@ -138,14 +133,13 @@
{
int ret;
-
- if ((ret = stamp1->tv_sec - stamp2->tv_sec) == 0) {
+ ret = stamp1->tv_sec - stamp2->tv_sec;
+ if (ret == 0)
ret = stamp1->tv_nsec - stamp2->tv_nsec;
- }
+
return ret;
}
-
/*
* Define the structures by which XPC variables can be exported to other
* partitions. (There are two: struct xpc_vars and struct xpc_vars_part)
@@ -172,11 +166,10 @@
AMO_t *amos_page; /* vaddr of page of AMOs from MSPEC driver */
};
-#define XPC_V_VERSION _XPC_VERSION(3,1) /* version 3.1 of the cross vars */
+#define XPC_V_VERSION _XPC_VERSION(3, 1) /* version 3.1 of the cross vars */
#define XPC_SUPPORTS_DISENGAGE_REQUEST(_version) \
- (_version >= _XPC_VERSION(3,1))
-
+ (_version >= _XPC_VERSION(3, 1))
static inline int
xpc_hb_allowed(partid_t partid, struct xpc_vars *vars)
@@ -193,7 +186,7 @@
old_mask = vars->heartbeating_to_mask;
new_mask = (old_mask | (1UL << partid));
} while (cmpxchg(&vars->heartbeating_to_mask, old_mask, new_mask) !=
- old_mask);
+ old_mask);
}
static inline void
@@ -205,10 +198,9 @@
old_mask = vars->heartbeating_to_mask;
new_mask = (old_mask & ~(1UL << partid));
} while (cmpxchg(&vars->heartbeating_to_mask, old_mask, new_mask) !=
- old_mask);
+ old_mask);
}
-
/*
* The AMOs page consists of a number of AMO variables which are divided into
* four groups, The first two groups are used to identify an IRQ's sender.
@@ -222,7 +214,6 @@
#define XPC_ENGAGED_PARTITIONS_AMO (XPC_ACTIVATE_IRQ_AMOS + XP_NASID_MASK_WORDS)
#define XPC_DISENGAGE_REQUEST_AMO (XPC_ENGAGED_PARTITIONS_AMO + 1)
-
/*
* The following structure describes the per partition specific variables.
*
@@ -234,7 +225,7 @@
* occupies half a cacheline.
*/
struct xpc_vars_part {
- volatile u64 magic;
+ u64 magic;
u64 openclose_args_pa; /* physical address of open and close args */
u64 GPs_pa; /* physical address of Get/Put values */
@@ -257,20 +248,20 @@
* MAGIC2 indicates that this partition has pulled the remote partititions
* per partition variables that pertain to this partition.
*/
-#define XPC_VP_MAGIC1 0x0053524156435058L /* 'XPCVARS\0'L (little endian) */
-#define XPC_VP_MAGIC2 0x0073726176435058L /* 'XPCvars\0'L (little endian) */
-
+#define XPC_VP_MAGIC1 0x0053524156435058L /* 'XPCVARS\0'L (little endian) */
+#define XPC_VP_MAGIC2 0x0073726176435058L /* 'XPCvars\0'L (little endian) */
/* the reserved page sizes and offsets */
#define XPC_RP_HEADER_SIZE L1_CACHE_ALIGN(sizeof(struct xpc_rsvd_page))
-#define XPC_RP_VARS_SIZE L1_CACHE_ALIGN(sizeof(struct xpc_vars))
+#define XPC_RP_VARS_SIZE L1_CACHE_ALIGN(sizeof(struct xpc_vars))
-#define XPC_RP_PART_NASIDS(_rp) (u64 *) ((u8 *) _rp + XPC_RP_HEADER_SIZE)
+#define XPC_RP_PART_NASIDS(_rp) ((u64 *)((u8 *)(_rp) + XPC_RP_HEADER_SIZE))
#define XPC_RP_MACH_NASIDS(_rp) (XPC_RP_PART_NASIDS(_rp) + xp_nasid_mask_words)
-#define XPC_RP_VARS(_rp) ((struct xpc_vars *) XPC_RP_MACH_NASIDS(_rp) + xp_nasid_mask_words)
-#define XPC_RP_VARS_PART(_rp) (struct xpc_vars_part *) ((u8 *) XPC_RP_VARS(rp) + XPC_RP_VARS_SIZE)
-
+#define XPC_RP_VARS(_rp) ((struct xpc_vars *)(XPC_RP_MACH_NASIDS(_rp) + \
+ xp_nasid_mask_words))
+#define XPC_RP_VARS_PART(_rp) ((struct xpc_vars_part *) \
+ ((u8 *)XPC_RP_VARS(_rp) + XPC_RP_VARS_SIZE))
/*
* Functions registered by add_timer() or called by kernel_thread() only
@@ -285,21 +276,17 @@
#define XPC_UNPACK_ARG1(_args) (((u64) _args) & 0xffffffff)
#define XPC_UNPACK_ARG2(_args) ((((u64) _args) >> 32) & 0xffffffff)
-
-
/*
* Define a Get/Put value pair (pointers) used with a message queue.
*/
struct xpc_gp {
- volatile s64 get; /* Get value */
- volatile s64 put; /* Put value */
+ s64 get; /* Get value */
+ s64 put; /* Put value */
};
#define XPC_GP_SIZE \
L1_CACHE_ALIGN(sizeof(struct xpc_gp) * XPC_NCHANNELS)
-
-
/*
* Define a structure that contains arguments associated with opening and
* closing a channel.
@@ -315,20 +302,15 @@
#define XPC_OPENCLOSE_ARGS_SIZE \
L1_CACHE_ALIGN(sizeof(struct xpc_openclose_args) * XPC_NCHANNELS)
-
-
/* struct xpc_msg flags */
#define XPC_M_DONE 0x01 /* msg has been received/consumed */
#define XPC_M_READY 0x02 /* msg is ready to be sent */
#define XPC_M_INTERRUPT 0x04 /* send interrupt when msg consumed */
-
#define XPC_MSG_ADDRESS(_payload) \
((struct xpc_msg *)((u8 *)(_payload) - XPC_MSG_PAYLOAD_OFFSET))
-
-
/*
* Defines notify entry.
*
@@ -336,19 +318,17 @@
* and consumed by the intended recipient.
*/
struct xpc_notify {
- volatile u8 type; /* type of notification */
+ u8 type; /* type of notification */
/* the following two fields are only used if type == XPC_N_CALL */
- xpc_notify_func func; /* user's notify function */
- void *key; /* pointer to user's key */
+ xpc_notify_func func; /* user's notify function */
+ void *key; /* pointer to user's key */
};
/* struct xpc_notify type of notification */
#define XPC_N_CALL 0x01 /* notify function provided by user */
-
-
/*
* Define the structure that manages all the stuff required by a channel. In
* particular, they are used to manage the messages sent across the channel.
@@ -428,48 +408,48 @@
* messages.
*/
struct xpc_channel {
- partid_t partid; /* ID of remote partition connected */
- spinlock_t lock; /* lock for updating this structure */
- u32 flags; /* general flags */
+ partid_t partid; /* ID of remote partition connected */
+ spinlock_t lock; /* lock for updating this structure */
+ u32 flags; /* general flags */
- enum xpc_retval reason; /* reason why channel is disconnect'g */
- int reason_line; /* line# disconnect initiated from */
+ enum xpc_retval reason; /* reason why channel is disconnect'g */
+ int reason_line; /* line# disconnect initiated from */
- u16 number; /* channel # */
+ u16 number; /* channel # */
- u16 msg_size; /* sizeof each msg entry */
- u16 local_nentries; /* #of msg entries in local msg queue */
- u16 remote_nentries; /* #of msg entries in remote msg queue*/
+ u16 msg_size; /* sizeof each msg entry */
+ u16 local_nentries; /* #of msg entries in local msg queue */
+ u16 remote_nentries; /* #of msg entries in remote msg queue */
void *local_msgqueue_base; /* base address of kmalloc'd space */
struct xpc_msg *local_msgqueue; /* local message queue */
void *remote_msgqueue_base; /* base address of kmalloc'd space */
- struct xpc_msg *remote_msgqueue;/* cached copy of remote partition's */
- /* local message queue */
- u64 remote_msgqueue_pa; /* phys addr of remote partition's */
- /* local message queue */
+ struct xpc_msg *remote_msgqueue; /* cached copy of remote partition's */
+ /* local message queue */
+ u64 remote_msgqueue_pa; /* phys addr of remote partition's */
+ /* local message queue */
- atomic_t references; /* #of external references to queues */
+ atomic_t references; /* #of external references to queues */
- atomic_t n_on_msg_allocate_wq; /* #on msg allocation wait queue */
- wait_queue_head_t msg_allocate_wq; /* msg allocation wait queue */
+ atomic_t n_on_msg_allocate_wq; /* #on msg allocation wait queue */
+ wait_queue_head_t msg_allocate_wq; /* msg allocation wait queue */
- u8 delayed_IPI_flags; /* IPI flags received, but delayed */
- /* action until channel disconnected */
+ u8 delayed_IPI_flags; /* IPI flags received, but delayed */
+ /* action until channel disconnected */
/* queue of msg senders who want to be notified when msg received */
- atomic_t n_to_notify; /* #of msg senders to notify */
- struct xpc_notify *notify_queue;/* notify queue for messages sent */
+ atomic_t n_to_notify; /* #of msg senders to notify */
+ struct xpc_notify *notify_queue; /* notify queue for messages sent */
- xpc_channel_func func; /* user's channel function */
- void *key; /* pointer to user's key */
+ xpc_channel_func func; /* user's channel function */
+ void *key; /* pointer to user's key */
struct mutex msg_to_pull_mutex; /* next msg to pull serialization */
- struct completion wdisconnect_wait; /* wait for channel disconnect */
+ struct completion wdisconnect_wait; /* wait for channel disconnect */
struct xpc_openclose_args *local_openclose_args; /* args passed on */
- /* opening or closing of channel */
+ /* opening or closing of channel */
/* various flavors of local and remote Get/Put values */
@@ -477,56 +457,48 @@
struct xpc_gp remote_GP; /* remote Get/Put values */
struct xpc_gp w_local_GP; /* working local Get/Put values */
struct xpc_gp w_remote_GP; /* working remote Get/Put values */
- s64 next_msg_to_pull; /* Put value of next msg to pull */
+ s64 next_msg_to_pull; /* Put value of next msg to pull */
/* kthread management related fields */
-// >>> rethink having kthreads_assigned_limit and kthreads_idle_limit; perhaps
-// >>> allow the assigned limit be unbounded and let the idle limit be dynamic
-// >>> dependent on activity over the last interval of time
atomic_t kthreads_assigned; /* #of kthreads assigned to channel */
- u32 kthreads_assigned_limit; /* limit on #of kthreads assigned */
- atomic_t kthreads_idle; /* #of kthreads idle waiting for work */
+ u32 kthreads_assigned_limit; /* limit on #of kthreads assigned */
+ atomic_t kthreads_idle; /* #of kthreads idle waiting for work */
u32 kthreads_idle_limit; /* limit on #of kthreads idle */
atomic_t kthreads_active; /* #of kthreads actively working */
- // >>> following field is temporary
- u32 kthreads_created; /* total #of kthreads created */
wait_queue_head_t idle_wq; /* idle kthread wait queue */
} ____cacheline_aligned;
-
/* struct xpc_channel flags */
-#define XPC_C_WASCONNECTED 0x00000001 /* channel was connected */
+#define XPC_C_WASCONNECTED 0x00000001 /* channel was connected */
-#define XPC_C_ROPENREPLY 0x00000002 /* remote open channel reply */
-#define XPC_C_OPENREPLY 0x00000004 /* local open channel reply */
-#define XPC_C_ROPENREQUEST 0x00000008 /* remote open channel request */
-#define XPC_C_OPENREQUEST 0x00000010 /* local open channel request */
+#define XPC_C_ROPENREPLY 0x00000002 /* remote open channel reply */
+#define XPC_C_OPENREPLY 0x00000004 /* local open channel reply */
+#define XPC_C_ROPENREQUEST 0x00000008 /* remote open channel request */
+#define XPC_C_OPENREQUEST 0x00000010 /* local open channel request */
#define XPC_C_SETUP 0x00000020 /* channel's msgqueues are alloc'd */
-#define XPC_C_CONNECTEDCALLOUT 0x00000040 /* connected callout initiated */
+#define XPC_C_CONNECTEDCALLOUT 0x00000040 /* connected callout initiated */
#define XPC_C_CONNECTEDCALLOUT_MADE \
- 0x00000080 /* connected callout completed */
-#define XPC_C_CONNECTED 0x00000100 /* local channel is connected */
-#define XPC_C_CONNECTING 0x00000200 /* channel is being connected */
+ 0x00000080 /* connected callout completed */
+#define XPC_C_CONNECTED 0x00000100 /* local channel is connected */
+#define XPC_C_CONNECTING 0x00000200 /* channel is being connected */
-#define XPC_C_RCLOSEREPLY 0x00000400 /* remote close channel reply */
-#define XPC_C_CLOSEREPLY 0x00000800 /* local close channel reply */
-#define XPC_C_RCLOSEREQUEST 0x00001000 /* remote close channel request */
-#define XPC_C_CLOSEREQUEST 0x00002000 /* local close channel request */
+#define XPC_C_RCLOSEREPLY 0x00000400 /* remote close channel reply */
+#define XPC_C_CLOSEREPLY 0x00000800 /* local close channel reply */
+#define XPC_C_RCLOSEREQUEST 0x00001000 /* remote close channel request */
+#define XPC_C_CLOSEREQUEST 0x00002000 /* local close channel request */
-#define XPC_C_DISCONNECTED 0x00004000 /* channel is disconnected */
-#define XPC_C_DISCONNECTING 0x00008000 /* channel is being disconnected */
+#define XPC_C_DISCONNECTED 0x00004000 /* channel is disconnected */
+#define XPC_C_DISCONNECTING 0x00008000 /* channel is being disconnected */
#define XPC_C_DISCONNECTINGCALLOUT \
0x00010000 /* disconnecting callout initiated */
#define XPC_C_DISCONNECTINGCALLOUT_MADE \
0x00020000 /* disconnecting callout completed */
-#define XPC_C_WDISCONNECT 0x00040000 /* waiting for channel disconnect */
-
-
+#define XPC_C_WDISCONNECT 0x00040000 /* waiting for channel disconnect */
/*
* Manages channels on a partition basis. There is one of these structures
@@ -537,33 +509,31 @@
/* XPC HB infrastructure */
- u8 remote_rp_version; /* version# of partition's rsvd pg */
- struct timespec remote_rp_stamp;/* time when rsvd pg was initialized */
- u64 remote_rp_pa; /* phys addr of partition's rsvd pg */
- u64 remote_vars_pa; /* phys addr of partition's vars */
+ u8 remote_rp_version; /* version# of partition's rsvd pg */
+ struct timespec remote_rp_stamp; /* time when rsvd pg was initialized */
+ u64 remote_rp_pa; /* phys addr of partition's rsvd pg */
+ u64 remote_vars_pa; /* phys addr of partition's vars */
u64 remote_vars_part_pa; /* phys addr of partition's vars part */
- u64 last_heartbeat; /* HB at last read */
+ u64 last_heartbeat; /* HB at last read */
u64 remote_amos_page_pa; /* phys addr of partition's amos page */
- int remote_act_nasid; /* active part's act/deact nasid */
+ int remote_act_nasid; /* active part's act/deact nasid */
int remote_act_phys_cpuid; /* active part's act/deact phys cpuid */
- u32 act_IRQ_rcvd; /* IRQs since activation */
- spinlock_t act_lock; /* protect updating of act_state */
- u8 act_state; /* from XPC HB viewpoint */
- u8 remote_vars_version; /* version# of partition's vars */
- enum xpc_retval reason; /* reason partition is deactivating */
- int reason_line; /* line# deactivation initiated from */
- int reactivate_nasid; /* nasid in partition to reactivate */
+ u32 act_IRQ_rcvd; /* IRQs since activation */
+ spinlock_t act_lock; /* protect updating of act_state */
+ u8 act_state; /* from XPC HB viewpoint */
+ u8 remote_vars_version; /* version# of partition's vars */
+ enum xpc_retval reason; /* reason partition is deactivating */
+ int reason_line; /* line# deactivation initiated from */
+ int reactivate_nasid; /* nasid in partition to reactivate */
- unsigned long disengage_request_timeout; /* timeout in jiffies */
+ unsigned long disengage_request_timeout; /* timeout in jiffies */
struct timer_list disengage_request_timer;
-
/* XPC infrastructure referencing and teardown control */
- volatile u8 setup_state; /* infrastructure setup state */
+ u8 setup_state; /* infrastructure setup state */
wait_queue_head_t teardown_wq; /* kthread waiting to teardown infra */
- atomic_t references; /* #of references to infrastructure */
-
+ atomic_t references; /* #of references to infrastructure */
/*
* NONE OF THE PRECEDING FIELDS OF THIS STRUCTURE WILL BE CLEARED WHEN
@@ -572,53 +542,48 @@
* 'nchannels' FIELD MUST BE THE FIRST OF THE FIELDS TO BE CLEARED.)
*/
+ u8 nchannels; /* #of defined channels supported */
+ atomic_t nchannels_active; /* #of channels that are not DISCONNECTED */
+ atomic_t nchannels_engaged; /* #of channels engaged with remote part */
+ struct xpc_channel *channels; /* array of channel structures */
- u8 nchannels; /* #of defined channels supported */
- atomic_t nchannels_active; /* #of channels that are not DISCONNECTED */
- atomic_t nchannels_engaged;/* #of channels engaged with remote part */
- struct xpc_channel *channels;/* array of channel structures */
-
- void *local_GPs_base; /* base address of kmalloc'd space */
- struct xpc_gp *local_GPs; /* local Get/Put values */
- void *remote_GPs_base; /* base address of kmalloc'd space */
- struct xpc_gp *remote_GPs;/* copy of remote partition's local Get/Put */
- /* values */
- u64 remote_GPs_pa; /* phys address of remote partition's local */
- /* Get/Put values */
-
+ void *local_GPs_base; /* base address of kmalloc'd space */
+ struct xpc_gp *local_GPs; /* local Get/Put values */
+ void *remote_GPs_base; /* base address of kmalloc'd space */
+ struct xpc_gp *remote_GPs; /* copy of remote partition's local */
+ /* Get/Put values */
+ u64 remote_GPs_pa; /* phys address of remote partition's local */
+ /* Get/Put values */
/* fields used to pass args when opening or closing a channel */
- void *local_openclose_args_base; /* base address of kmalloc'd space */
- struct xpc_openclose_args *local_openclose_args; /* local's args */
- void *remote_openclose_args_base; /* base address of kmalloc'd space */
+ void *local_openclose_args_base; /* base address of kmalloc'd space */
+ struct xpc_openclose_args *local_openclose_args; /* local's args */
+ void *remote_openclose_args_base; /* base address of kmalloc'd space */
struct xpc_openclose_args *remote_openclose_args; /* copy of remote's */
- /* args */
- u64 remote_openclose_args_pa; /* phys addr of remote's args */
-
+ /* args */
+ u64 remote_openclose_args_pa; /* phys addr of remote's args */
/* IPI sending, receiving and handling related fields */
- int remote_IPI_nasid; /* nasid of where to send IPIs */
- int remote_IPI_phys_cpuid; /* phys CPU ID of where to send IPIs */
- AMO_t *remote_IPI_amo_va; /* address of remote IPI AMO_t structure */
+ int remote_IPI_nasid; /* nasid of where to send IPIs */
+ int remote_IPI_phys_cpuid; /* phys CPU ID of where to send IPIs */
+ AMO_t *remote_IPI_amo_va; /* address of remote IPI AMO_t structure */
- AMO_t *local_IPI_amo_va; /* address of IPI AMO_t structure */
- u64 local_IPI_amo; /* IPI amo flags yet to be handled */
- char IPI_owner[8]; /* IPI owner's name */
- struct timer_list dropped_IPI_timer; /* dropped IPI timer */
+ AMO_t *local_IPI_amo_va; /* address of IPI AMO_t structure */
+ u64 local_IPI_amo; /* IPI amo flags yet to be handled */
+ char IPI_owner[8]; /* IPI owner's name */
+ struct timer_list dropped_IPI_timer; /* dropped IPI timer */
- spinlock_t IPI_lock; /* IPI handler lock */
-
+ spinlock_t IPI_lock; /* IPI handler lock */
/* channel manager related fields */
atomic_t channel_mgr_requests; /* #of requests to activate chan mgr */
- wait_queue_head_t channel_mgr_wq; /* channel mgr's wait queue */
+ wait_queue_head_t channel_mgr_wq; /* channel mgr's wait queue */
} ____cacheline_aligned;
-
/* struct xpc_partition act_state values (for XPC HB) */
#define XPC_P_INACTIVE 0x00 /* partition is not active */
@@ -627,11 +592,9 @@
#define XPC_P_ACTIVE 0x03 /* xpc_partition_up() was called */
#define XPC_P_DEACTIVATING 0x04 /* partition deactivation initiated */
-
#define XPC_DEACTIVATE_PARTITION(_p, _reason) \
xpc_deactivate_partition(__LINE__, (_p), (_reason))
-
/* struct xpc_partition setup_state values */
#define XPC_P_UNSET 0x00 /* infrastructure was never setup */
@@ -639,8 +602,6 @@
#define XPC_P_WTEARDOWN 0x02 /* waiting to teardown infrastructure */
#define XPC_P_TORNDOWN 0x03 /* infrastructure is torndown */
-
-
/*
* struct xpc_partition IPI_timer #of seconds to wait before checking for
* dropped IPIs. These occur whenever an IPI amo write doesn't complete until
@@ -648,22 +609,17 @@
*/
#define XPC_P_DROPPED_IPI_WAIT (0.25 * HZ)
-
/* number of seconds to wait for other partitions to disengage */
#define XPC_DISENGAGE_REQUEST_DEFAULT_TIMELIMIT 90
/* interval in seconds to print 'waiting disengagement' messages */
#define XPC_DISENGAGE_PRINTMSG_INTERVAL 10
-
#define XPC_PARTID(_p) ((partid_t) ((_p) - &xpc_partitions[0]))
-
-
/* found in xp_main.c */
extern struct xpc_registration xpc_registrations[];
-
/* found in xpc_main.c */
extern struct device *xpc_part;
extern struct device *xpc_chan;
@@ -676,7 +632,6 @@
extern void xpc_create_kthreads(struct xpc_channel *, int, int);
extern void xpc_disconnect_wait(int);
-
/* found in xpc_partition.c */
extern int xpc_exiting;
extern struct xpc_vars *xpc_vars;
@@ -696,10 +651,9 @@
extern void xpc_discovery(void);
extern void xpc_check_remote_hb(void);
extern void xpc_deactivate_partition(const int, struct xpc_partition *,
- enum xpc_retval);
+ enum xpc_retval);
extern enum xpc_retval xpc_initiate_partid_to_nasids(partid_t, void *);
-
/* found in xpc_channel.c */
extern void xpc_initiate_connect(int);
extern void xpc_initiate_disconnect(int);
@@ -714,23 +668,18 @@
extern void xpc_connected_callout(struct xpc_channel *);
extern void xpc_deliver_msg(struct xpc_channel *);
extern void xpc_disconnect_channel(const int, struct xpc_channel *,
- enum xpc_retval, unsigned long *);
+ enum xpc_retval, unsigned long *);
extern void xpc_disconnect_callout(struct xpc_channel *, enum xpc_retval);
extern void xpc_partition_going_down(struct xpc_partition *, enum xpc_retval);
extern void xpc_teardown_infrastructure(struct xpc_partition *);
-
-
static inline void
xpc_wakeup_channel_mgr(struct xpc_partition *part)
{
- if (atomic_inc_return(&part->channel_mgr_requests) == 1) {
+ if (atomic_inc_return(&part->channel_mgr_requests) == 1)
wake_up(&part->channel_mgr_wq);
- }
}
-
-
/*
* These next two inlines are used to keep us from tearing down a channel's
* msg queues while a thread may be referencing them.
@@ -747,17 +696,13 @@
s32 refs = atomic_dec_return(&ch->references);
DBUG_ON(refs < 0);
- if (refs == 0) {
+ if (refs == 0)
xpc_wakeup_channel_mgr(&xpc_partitions[ch->partid]);
- }
}
-
-
#define XPC_DISCONNECT_CHANNEL(_ch, _reason, _irqflgs) \
xpc_disconnect_channel(__LINE__, _ch, _reason, _irqflgs)
-
/*
* These two inlines are used to keep us from tearing down a partition's
* setup infrastructure while a thread may be referencing it.
@@ -767,11 +712,9 @@
{
s32 refs = atomic_dec_return(&part->references);
-
DBUG_ON(refs < 0);
- if (refs == 0 && part->setup_state == XPC_P_WTEARDOWN) {
+ if (refs == 0 && part->setup_state == XPC_P_WTEARDOWN)
wake_up(&part->teardown_wq);
- }
}
static inline int
@@ -779,17 +722,14 @@
{
int setup;
-
atomic_inc(&part->references);
setup = (part->setup_state == XPC_P_SETUP);
- if (!setup) {
+ if (!setup)
xpc_part_deref(part);
- }
+
return setup;
}
-
-
/*
* The following macro is to be used for the setting of the reason and
* reason_line fields in both the struct xpc_channel and struct xpc_partition
@@ -801,8 +741,6 @@
(_p)->reason_line = _line; \
}
-
-
/*
* This next set of inlines are used to keep track of when a partition is
* potentially engaged in accessing memory belonging to another partition.
@@ -812,23 +750,24 @@
xpc_mark_partition_engaged(struct xpc_partition *part)
{
unsigned long irq_flags;
- AMO_t *amo = (AMO_t *) __va(part->remote_amos_page_pa +
- (XPC_ENGAGED_PARTITIONS_AMO * sizeof(AMO_t)));
-
+ AMO_t *amo = (AMO_t *)__va(part->remote_amos_page_pa +
+ (XPC_ENGAGED_PARTITIONS_AMO *
+ sizeof(AMO_t)));
local_irq_save(irq_flags);
/* set bit corresponding to our partid in remote partition's AMO */
- FETCHOP_STORE_OP(TO_AMO((u64) &amo->variable), FETCHOP_OR,
- (1UL << sn_partition_id));
+ FETCHOP_STORE_OP(TO_AMO((u64)&amo->variable), FETCHOP_OR,
+ (1UL << sn_partition_id));
/*
* We must always use the nofault function regardless of whether we
* are on a Shub 1.1 system or a Shub 1.2 slice 0xc processor. If we
* didn't, we'd never know that the other partition is down and would
* keep sending IPIs and AMOs to it until the heartbeat times out.
*/
- (void) xp_nofault_PIOR((u64 *) GLOBAL_MMR_ADDR(NASID_GET(&amo->
- variable), xp_nofault_PIOR_target));
+ (void)xp_nofault_PIOR((u64 *)GLOBAL_MMR_ADDR(NASID_GET(&amo->
+ variable),
+ xp_nofault_PIOR_target));
local_irq_restore(irq_flags);
}
@@ -837,23 +776,24 @@
xpc_mark_partition_disengaged(struct xpc_partition *part)
{
unsigned long irq_flags;
- AMO_t *amo = (AMO_t *) __va(part->remote_amos_page_pa +
- (XPC_ENGAGED_PARTITIONS_AMO * sizeof(AMO_t)));
-
+ AMO_t *amo = (AMO_t *)__va(part->remote_amos_page_pa +
+ (XPC_ENGAGED_PARTITIONS_AMO *
+ sizeof(AMO_t)));
local_irq_save(irq_flags);
/* clear bit corresponding to our partid in remote partition's AMO */
- FETCHOP_STORE_OP(TO_AMO((u64) &amo->variable), FETCHOP_AND,
- ~(1UL << sn_partition_id));
+ FETCHOP_STORE_OP(TO_AMO((u64)&amo->variable), FETCHOP_AND,
+ ~(1UL << sn_partition_id));
/*
* We must always use the nofault function regardless of whether we
* are on a Shub 1.1 system or a Shub 1.2 slice 0xc processor. If we
* didn't, we'd never know that the other partition is down and would
* keep sending IPIs and AMOs to it until the heartbeat times out.
*/
- (void) xp_nofault_PIOR((u64 *) GLOBAL_MMR_ADDR(NASID_GET(&amo->
- variable), xp_nofault_PIOR_target));
+ (void)xp_nofault_PIOR((u64 *)GLOBAL_MMR_ADDR(NASID_GET(&amo->
+ variable),
+ xp_nofault_PIOR_target));
local_irq_restore(irq_flags);
}
@@ -862,23 +802,23 @@
xpc_request_partition_disengage(struct xpc_partition *part)
{
unsigned long irq_flags;
- AMO_t *amo = (AMO_t *) __va(part->remote_amos_page_pa +
- (XPC_DISENGAGE_REQUEST_AMO * sizeof(AMO_t)));
-
+ AMO_t *amo = (AMO_t *)__va(part->remote_amos_page_pa +
+ (XPC_DISENGAGE_REQUEST_AMO * sizeof(AMO_t)));
local_irq_save(irq_flags);
/* set bit corresponding to our partid in remote partition's AMO */
- FETCHOP_STORE_OP(TO_AMO((u64) &amo->variable), FETCHOP_OR,
- (1UL << sn_partition_id));
+ FETCHOP_STORE_OP(TO_AMO((u64)&amo->variable), FETCHOP_OR,
+ (1UL << sn_partition_id));
/*
* We must always use the nofault function regardless of whether we
* are on a Shub 1.1 system or a Shub 1.2 slice 0xc processor. If we
* didn't, we'd never know that the other partition is down and would
* keep sending IPIs and AMOs to it until the heartbeat times out.
*/
- (void) xp_nofault_PIOR((u64 *) GLOBAL_MMR_ADDR(NASID_GET(&amo->
- variable), xp_nofault_PIOR_target));
+ (void)xp_nofault_PIOR((u64 *)GLOBAL_MMR_ADDR(NASID_GET(&amo->
+ variable),
+ xp_nofault_PIOR_target));
local_irq_restore(irq_flags);
}
@@ -887,23 +827,23 @@
xpc_cancel_partition_disengage_request(struct xpc_partition *part)
{
unsigned long irq_flags;
- AMO_t *amo = (AMO_t *) __va(part->remote_amos_page_pa +
- (XPC_DISENGAGE_REQUEST_AMO * sizeof(AMO_t)));
-
+ AMO_t *amo = (AMO_t *)__va(part->remote_amos_page_pa +
+ (XPC_DISENGAGE_REQUEST_AMO * sizeof(AMO_t)));
local_irq_save(irq_flags);
/* clear bit corresponding to our partid in remote partition's AMO */
- FETCHOP_STORE_OP(TO_AMO((u64) &amo->variable), FETCHOP_AND,
- ~(1UL << sn_partition_id));
+ FETCHOP_STORE_OP(TO_AMO((u64)&amo->variable), FETCHOP_AND,
+ ~(1UL << sn_partition_id));
/*
* We must always use the nofault function regardless of whether we
* are on a Shub 1.1 system or a Shub 1.2 slice 0xc processor. If we
* didn't, we'd never know that the other partition is down and would
* keep sending IPIs and AMOs to it until the heartbeat times out.
*/
- (void) xp_nofault_PIOR((u64 *) GLOBAL_MMR_ADDR(NASID_GET(&amo->
- variable), xp_nofault_PIOR_target));
+ (void)xp_nofault_PIOR((u64 *)GLOBAL_MMR_ADDR(NASID_GET(&amo->
+ variable),
+ xp_nofault_PIOR_target));
local_irq_restore(irq_flags);
}
@@ -913,10 +853,9 @@
{
AMO_t *amo = xpc_vars->amos_page + XPC_ENGAGED_PARTITIONS_AMO;
-
/* return our partition's AMO variable ANDed with partid_mask */
- return (FETCHOP_LOAD_OP(TO_AMO((u64) &amo->variable), FETCHOP_LOAD) &
- partid_mask);
+ return (FETCHOP_LOAD_OP(TO_AMO((u64)&amo->variable), FETCHOP_LOAD) &
+ partid_mask);
}
static inline u64
@@ -924,10 +863,9 @@
{
AMO_t *amo = xpc_vars->amos_page + XPC_DISENGAGE_REQUEST_AMO;
-
/* return our partition's AMO variable ANDed with partid_mask */
- return (FETCHOP_LOAD_OP(TO_AMO((u64) &amo->variable), FETCHOP_LOAD) &
- partid_mask);
+ return (FETCHOP_LOAD_OP(TO_AMO((u64)&amo->variable), FETCHOP_LOAD) &
+ partid_mask);
}
static inline void
@@ -935,10 +873,9 @@
{
AMO_t *amo = xpc_vars->amos_page + XPC_ENGAGED_PARTITIONS_AMO;
-
/* clear bit(s) based on partid_mask in our partition's AMO */
- FETCHOP_STORE_OP(TO_AMO((u64) &amo->variable), FETCHOP_AND,
- ~partid_mask);
+ FETCHOP_STORE_OP(TO_AMO((u64)&amo->variable), FETCHOP_AND,
+ ~partid_mask);
}
static inline void
@@ -946,14 +883,11 @@
{
AMO_t *amo = xpc_vars->amos_page + XPC_DISENGAGE_REQUEST_AMO;
-
/* clear bit(s) based on partid_mask in our partition's AMO */
- FETCHOP_STORE_OP(TO_AMO((u64) &amo->variable), FETCHOP_AND,
- ~partid_mask);
+ FETCHOP_STORE_OP(TO_AMO((u64)&amo->variable), FETCHOP_AND,
+ ~partid_mask);
}
-
-
/*
* The following set of macros and inlines are used for the sending and
* receiving of IPIs (also known as IRQs). There are two flavors of IPIs,
@@ -964,20 +898,18 @@
static inline u64
xpc_IPI_receive(AMO_t *amo)
{
- return FETCHOP_LOAD_OP(TO_AMO((u64) &amo->variable), FETCHOP_CLEAR);
+ return FETCHOP_LOAD_OP(TO_AMO((u64)&amo->variable), FETCHOP_CLEAR);
}
-
static inline enum xpc_retval
xpc_IPI_send(AMO_t *amo, u64 flag, int nasid, int phys_cpuid, int vector)
{
int ret = 0;
unsigned long irq_flags;
-
local_irq_save(irq_flags);
- FETCHOP_STORE_OP(TO_AMO((u64) &amo->variable), FETCHOP_OR, flag);
+ FETCHOP_STORE_OP(TO_AMO((u64)&amo->variable), FETCHOP_OR, flag);
sn_send_IPI_phys(nasid, phys_cpuid, vector, 0);
/*
@@ -986,15 +918,14 @@
* didn't, we'd never know that the other partition is down and would
* keep sending IPIs and AMOs to it until the heartbeat times out.
*/
- ret = xp_nofault_PIOR((u64 *) GLOBAL_MMR_ADDR(NASID_GET(&amo->variable),
- xp_nofault_PIOR_target));
+ ret = xp_nofault_PIOR((u64 *)GLOBAL_MMR_ADDR(NASID_GET(&amo->variable),
+ xp_nofault_PIOR_target));
local_irq_restore(irq_flags);
return ((ret == 0) ? xpcSuccess : xpcPioReadError);
}
-
/*
* IPIs associated with SGI_XPC_ACTIVATE IRQ.
*/
@@ -1004,47 +935,47 @@
*/
static inline void
xpc_activate_IRQ_send(u64 amos_page_pa, int from_nasid, int to_nasid,
- int to_phys_cpuid)
+ int to_phys_cpuid)
{
int w_index = XPC_NASID_W_INDEX(from_nasid);
int b_index = XPC_NASID_B_INDEX(from_nasid);
- AMO_t *amos = (AMO_t *) __va(amos_page_pa +
- (XPC_ACTIVATE_IRQ_AMOS * sizeof(AMO_t)));
+ AMO_t *amos = (AMO_t *)__va(amos_page_pa +
+ (XPC_ACTIVATE_IRQ_AMOS * sizeof(AMO_t)));
-
- (void) xpc_IPI_send(&amos[w_index], (1UL << b_index), to_nasid,
- to_phys_cpuid, SGI_XPC_ACTIVATE);
+ (void)xpc_IPI_send(&amos[w_index], (1UL << b_index), to_nasid,
+ to_phys_cpuid, SGI_XPC_ACTIVATE);
}
static inline void
xpc_IPI_send_activate(struct xpc_vars *vars)
{
xpc_activate_IRQ_send(vars->amos_page_pa, cnodeid_to_nasid(0),
- vars->act_nasid, vars->act_phys_cpuid);
+ vars->act_nasid, vars->act_phys_cpuid);
}
static inline void
xpc_IPI_send_activated(struct xpc_partition *part)
{
xpc_activate_IRQ_send(part->remote_amos_page_pa, cnodeid_to_nasid(0),
- part->remote_act_nasid, part->remote_act_phys_cpuid);
+ part->remote_act_nasid,
+ part->remote_act_phys_cpuid);
}
static inline void
xpc_IPI_send_reactivate(struct xpc_partition *part)
{
xpc_activate_IRQ_send(xpc_vars->amos_page_pa, part->reactivate_nasid,
- xpc_vars->act_nasid, xpc_vars->act_phys_cpuid);
+ xpc_vars->act_nasid, xpc_vars->act_phys_cpuid);
}
static inline void
xpc_IPI_send_disengage(struct xpc_partition *part)
{
xpc_activate_IRQ_send(part->remote_amos_page_pa, cnodeid_to_nasid(0),
- part->remote_act_nasid, part->remote_act_phys_cpuid);
+ part->remote_act_nasid,
+ part->remote_act_phys_cpuid);
}
-
/*
* IPIs associated with SGI_XPC_NOTIFY IRQ.
*/
@@ -1058,33 +989,28 @@
static inline void
xpc_notify_IRQ_send(struct xpc_channel *ch, u8 ipi_flag, char *ipi_flag_string,
- unsigned long *irq_flags)
+ unsigned long *irq_flags)
{
struct xpc_partition *part = &xpc_partitions[ch->partid];
enum xpc_retval ret;
-
if (likely(part->act_state != XPC_P_DEACTIVATING)) {
ret = xpc_IPI_send(part->remote_IPI_amo_va,
- (u64) ipi_flag << (ch->number * 8),
- part->remote_IPI_nasid,
- part->remote_IPI_phys_cpuid,
- SGI_XPC_NOTIFY);
+ (u64)ipi_flag << (ch->number * 8),
+ part->remote_IPI_nasid,
+ part->remote_IPI_phys_cpuid, SGI_XPC_NOTIFY);
dev_dbg(xpc_chan, "%s sent to partid=%d, channel=%d, ret=%d\n",
ipi_flag_string, ch->partid, ch->number, ret);
if (unlikely(ret != xpcSuccess)) {
- if (irq_flags != NULL) {
+ if (irq_flags != NULL)
spin_unlock_irqrestore(&ch->lock, *irq_flags);
- }
XPC_DEACTIVATE_PARTITION(part, ret);
- if (irq_flags != NULL) {
+ if (irq_flags != NULL)
spin_lock_irqsave(&ch->lock, *irq_flags);
- }
}
}
}
-
/*
* Make it look like the remote partition, which is associated with the
* specified channel, sent us an IPI. This faked IPI will be handled
@@ -1095,18 +1021,16 @@
static inline void
xpc_notify_IRQ_send_local(struct xpc_channel *ch, u8 ipi_flag,
- char *ipi_flag_string)
+ char *ipi_flag_string)
{
struct xpc_partition *part = &xpc_partitions[ch->partid];
-
- FETCHOP_STORE_OP(TO_AMO((u64) &part->local_IPI_amo_va->variable),
- FETCHOP_OR, ((u64) ipi_flag << (ch->number * 8)));
+ FETCHOP_STORE_OP(TO_AMO((u64)&part->local_IPI_amo_va->variable),
+ FETCHOP_OR, ((u64)ipi_flag << (ch->number * 8)));
dev_dbg(xpc_chan, "%s sent local from partid=%d, channel=%d\n",
ipi_flag_string, ch->partid, ch->number);
}
-
/*
* The sending and receiving of IPIs includes the setting of an AMO variable
* to indicate the reason the IPI was sent. The 64-bit variable is divided
@@ -1121,21 +1045,18 @@
#define XPC_IPI_OPENREPLY 0x08
#define XPC_IPI_MSGREQUEST 0x10
-
/* given an AMO variable and a channel#, get its associated IPI flags */
#define XPC_GET_IPI_FLAGS(_amo, _c) ((u8) (((_amo) >> ((_c) * 8)) & 0xff))
#define XPC_SET_IPI_FLAGS(_amo, _c, _f) (_amo) |= ((u64) (_f) << ((_c) * 8))
-#define XPC_ANY_OPENCLOSE_IPI_FLAGS_SET(_amo) ((_amo) & __IA64_UL_CONST(0x0f0f0f0f0f0f0f0f))
-#define XPC_ANY_MSG_IPI_FLAGS_SET(_amo) ((_amo) & __IA64_UL_CONST(0x1010101010101010))
-
+#define XPC_ANY_OPENCLOSE_IPI_FLAGS_SET(_amo) ((_amo) & 0x0f0f0f0f0f0f0f0fUL)
+#define XPC_ANY_MSG_IPI_FLAGS_SET(_amo) ((_amo) & 0x1010101010101010UL)
static inline void
xpc_IPI_send_closerequest(struct xpc_channel *ch, unsigned long *irq_flags)
{
struct xpc_openclose_args *args = ch->local_openclose_args;
-
args->reason = ch->reason;
XPC_NOTIFY_IRQ_SEND(ch, XPC_IPI_CLOSEREQUEST, irq_flags);
@@ -1152,7 +1073,6 @@
{
struct xpc_openclose_args *args = ch->local_openclose_args;
-
args->msg_size = ch->msg_size;
args->local_nentries = ch->local_nentries;
@@ -1164,7 +1084,6 @@
{
struct xpc_openclose_args *args = ch->local_openclose_args;
-
args->remote_nentries = ch->remote_nentries;
args->local_nentries = ch->local_nentries;
args->local_msgqueue_pa = __pa(ch->local_msgqueue);
@@ -1184,7 +1103,6 @@
XPC_NOTIFY_IRQ_SEND_LOCAL(ch, XPC_IPI_MSGREQUEST);
}
-
/*
* Memory for XPC's AMO variables is allocated by the MSPEC driver. These
* pages are located in the lowest granule. The lowest granule uses 4k pages
@@ -1201,13 +1119,10 @@
{
AMO_t *amo = xpc_vars->amos_page + index;
-
- (void) xpc_IPI_receive(amo); /* clear AMO variable */
+ (void)xpc_IPI_receive(amo); /* clear AMO variable */
return amo;
}
-
-
static inline enum xpc_retval
xpc_map_bte_errors(bte_result_t error)
{
@@ -1220,22 +1135,31 @@
return xpcBteUnmappedError;
}
switch (error) {
- case BTE_SUCCESS: return xpcSuccess;
- case BTEFAIL_DIR: return xpcBteDirectoryError;
- case BTEFAIL_POISON: return xpcBtePoisonError;
- case BTEFAIL_WERR: return xpcBteWriteError;
- case BTEFAIL_ACCESS: return xpcBteAccessError;
- case BTEFAIL_PWERR: return xpcBtePWriteError;
- case BTEFAIL_PRERR: return xpcBtePReadError;
- case BTEFAIL_TOUT: return xpcBteTimeOutError;
- case BTEFAIL_XTERR: return xpcBteXtalkError;
- case BTEFAIL_NOTAVAIL: return xpcBteNotAvailable;
- default: return xpcBteUnmappedError;
+ case BTE_SUCCESS:
+ return xpcSuccess;
+ case BTEFAIL_DIR:
+ return xpcBteDirectoryError;
+ case BTEFAIL_POISON:
+ return xpcBtePoisonError;
+ case BTEFAIL_WERR:
+ return xpcBteWriteError;
+ case BTEFAIL_ACCESS:
+ return xpcBteAccessError;
+ case BTEFAIL_PWERR:
+ return xpcBtePWriteError;
+ case BTEFAIL_PRERR:
+ return xpcBtePReadError;
+ case BTEFAIL_TOUT:
+ return xpcBteTimeOutError;
+ case BTEFAIL_XTERR:
+ return xpcBteXtalkError;
+ case BTEFAIL_NOTAVAIL:
+ return xpcBteNotAvailable;
+ default:
+ return xpcBteUnmappedError;
}
}
-
-
/*
* Check to see if there is any channel activity to/from the specified
* partition.
@@ -1246,11 +1170,9 @@
u64 IPI_amo;
unsigned long irq_flags;
-
IPI_amo = xpc_IPI_receive(part->local_IPI_amo_va);
- if (IPI_amo == 0) {
+ if (IPI_amo == 0)
return;
- }
spin_lock_irqsave(&part->IPI_lock, irq_flags);
part->local_IPI_amo |= IPI_amo;
@@ -1262,6 +1184,4 @@
xpc_wakeup_channel_mgr(part);
}
-
-#endif /* _ASM_IA64_SN_XPC_H */
-
+#endif /* _DRIVERS_MISC_SGIXP_XPC_H */
diff --git a/arch/ia64/sn/kernel/xpc_channel.c b/drivers/misc/sgi-xp/xpc_channel.c
similarity index 86%
rename from arch/ia64/sn/kernel/xpc_channel.c
rename to drivers/misc/sgi-xp/xpc_channel.c
index 44ccc0d..bfcb9ea 100644
--- a/arch/ia64/sn/kernel/xpc_channel.c
+++ b/drivers/misc/sgi-xp/xpc_channel.c
@@ -3,10 +3,9 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (c) 2004-2006 Silicon Graphics, Inc. All Rights Reserved.
+ * Copyright (c) 2004-2008 Silicon Graphics, Inc. All Rights Reserved.
*/
-
/*
* Cross Partition Communication (XPC) channel support.
*
@@ -15,7 +14,6 @@
*
*/
-
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/sched.h>
@@ -25,8 +23,7 @@
#include <linux/completion.h>
#include <asm/sn/bte.h>
#include <asm/sn/sn_sal.h>
-#include <asm/sn/xpc.h>
-
+#include "xpc.h"
/*
* Guarantee that the kzalloc'd memory is cacheline aligned.
@@ -36,22 +33,21 @@
{
/* see if kzalloc will give us cachline aligned memory by default */
*base = kzalloc(size, flags);
- if (*base == NULL) {
+ if (*base == NULL)
return NULL;
- }
- if ((u64) *base == L1_CACHE_ALIGN((u64) *base)) {
+
+ if ((u64)*base == L1_CACHE_ALIGN((u64)*base))
return *base;
- }
+
kfree(*base);
/* nope, we'll have to do it ourselves */
*base = kzalloc(size + L1_CACHE_BYTES, flags);
- if (*base == NULL) {
+ if (*base == NULL)
return NULL;
- }
- return (void *) L1_CACHE_ALIGN((u64) *base);
-}
+ return (void *)L1_CACHE_ALIGN((u64)*base);
+}
/*
* Set up the initial values for the XPartition Communication channels.
@@ -62,7 +58,6 @@
int ch_number;
struct xpc_channel *ch;
-
for (ch_number = 0; ch_number < part->nchannels; ch_number++) {
ch = &part->channels[ch_number];
@@ -72,7 +67,7 @@
ch->local_GP = &part->local_GPs[ch_number];
ch->local_openclose_args =
- &part->local_openclose_args[ch_number];
+ &part->local_openclose_args[ch_number];
atomic_set(&ch->kthreads_assigned, 0);
atomic_set(&ch->kthreads_idle, 0);
@@ -91,7 +86,6 @@
}
}
-
/*
* Setup the infrastructure necessary to support XPartition Communication
* between the specified remote partition and the local one.
@@ -103,7 +97,6 @@
struct timer_list *timer;
partid_t partid = XPC_PARTID(part);
-
/*
* Zero out MOST of the entry for this partition. Only the fields
* starting with `nchannels' will be zeroed. The preceding fields must
@@ -111,14 +104,14 @@
* referenced during this memset() operation.
*/
memset(&part->nchannels, 0, sizeof(struct xpc_partition) -
- offsetof(struct xpc_partition, nchannels));
+ offsetof(struct xpc_partition, nchannels));
/*
* Allocate all of the channel structures as a contiguous chunk of
* memory.
*/
part->channels = kzalloc(sizeof(struct xpc_channel) * XPC_NCHANNELS,
- GFP_KERNEL);
+ GFP_KERNEL);
if (part->channels == NULL) {
dev_err(xpc_chan, "can't get memory for channels\n");
return xpcNoMemory;
@@ -126,11 +119,11 @@
part->nchannels = XPC_NCHANNELS;
-
/* allocate all the required GET/PUT values */
part->local_GPs = xpc_kzalloc_cacheline_aligned(XPC_GP_SIZE,
- GFP_KERNEL, &part->local_GPs_base);
+ GFP_KERNEL,
+ &part->local_GPs_base);
if (part->local_GPs == NULL) {
kfree(part->channels);
part->channels = NULL;
@@ -140,7 +133,9 @@
}
part->remote_GPs = xpc_kzalloc_cacheline_aligned(XPC_GP_SIZE,
- GFP_KERNEL, &part->remote_GPs_base);
+ GFP_KERNEL,
+ &part->
+ remote_GPs_base);
if (part->remote_GPs == NULL) {
dev_err(xpc_chan, "can't get memory for remote get/put "
"values\n");
@@ -151,12 +146,11 @@
return xpcNoMemory;
}
-
/* allocate all the required open and close args */
- part->local_openclose_args = xpc_kzalloc_cacheline_aligned(
- XPC_OPENCLOSE_ARGS_SIZE, GFP_KERNEL,
- &part->local_openclose_args_base);
+ part->local_openclose_args =
+ xpc_kzalloc_cacheline_aligned(XPC_OPENCLOSE_ARGS_SIZE, GFP_KERNEL,
+ &part->local_openclose_args_base);
if (part->local_openclose_args == NULL) {
dev_err(xpc_chan, "can't get memory for local connect args\n");
kfree(part->remote_GPs_base);
@@ -168,9 +162,9 @@
return xpcNoMemory;
}
- part->remote_openclose_args = xpc_kzalloc_cacheline_aligned(
- XPC_OPENCLOSE_ARGS_SIZE, GFP_KERNEL,
- &part->remote_openclose_args_base);
+ part->remote_openclose_args =
+ xpc_kzalloc_cacheline_aligned(XPC_OPENCLOSE_ARGS_SIZE, GFP_KERNEL,
+ &part->remote_openclose_args_base);
if (part->remote_openclose_args == NULL) {
dev_err(xpc_chan, "can't get memory for remote connect args\n");
kfree(part->local_openclose_args_base);
@@ -184,13 +178,11 @@
return xpcNoMemory;
}
-
xpc_initialize_channels(part, partid);
atomic_set(&part->nchannels_active, 0);
atomic_set(&part->nchannels_engaged, 0);
-
/* local_IPI_amo were set to 0 by an earlier memset() */
/* Initialize this partitions AMO_t structure */
@@ -203,7 +195,7 @@
sprintf(part->IPI_owner, "xpc%02d", partid);
ret = request_irq(SGI_XPC_NOTIFY, xpc_notify_IRQ_handler, IRQF_SHARED,
- part->IPI_owner, (void *) (u64) partid);
+ part->IPI_owner, (void *)(u64)partid);
if (ret != 0) {
dev_err(xpc_chan, "can't register NOTIFY IRQ handler, "
"errno=%d\n", -ret);
@@ -223,8 +215,8 @@
/* Setup a timer to check for dropped IPIs */
timer = &part->dropped_IPI_timer;
init_timer(timer);
- timer->function = (void (*)(unsigned long)) xpc_dropped_IPI_check;
- timer->data = (unsigned long) part;
+ timer->function = (void (*)(unsigned long))xpc_dropped_IPI_check;
+ timer->data = (unsigned long)part;
timer->expires = jiffies + XPC_P_DROPPED_IPI_WAIT;
add_timer(timer);
@@ -234,7 +226,6 @@
*/
part->setup_state = XPC_P_SETUP;
-
/*
* Setup the per partition specific variables required by the
* remote partition to establish channel connections with us.
@@ -244,7 +235,7 @@
*/
xpc_vars_part[partid].GPs_pa = __pa(part->local_GPs);
xpc_vars_part[partid].openclose_args_pa =
- __pa(part->local_openclose_args);
+ __pa(part->local_openclose_args);
xpc_vars_part[partid].IPI_amo_pa = __pa(part->local_IPI_amo_va);
cpuid = raw_smp_processor_id(); /* any CPU in this partition will do */
xpc_vars_part[partid].IPI_nasid = cpuid_to_nasid(cpuid);
@@ -255,7 +246,6 @@
return xpcSuccess;
}
-
/*
* Create a wrapper that hides the underlying mechanism for pulling a cacheline
* (or multiple cachelines) from a remote partition.
@@ -266,24 +256,21 @@
*/
static enum xpc_retval
xpc_pull_remote_cachelines(struct xpc_partition *part, void *dst,
- const void *src, size_t cnt)
+ const void *src, size_t cnt)
{
bte_result_t bte_ret;
-
- DBUG_ON((u64) src != L1_CACHE_ALIGN((u64) src));
- DBUG_ON((u64) dst != L1_CACHE_ALIGN((u64) dst));
+ DBUG_ON((u64)src != L1_CACHE_ALIGN((u64)src));
+ DBUG_ON((u64)dst != L1_CACHE_ALIGN((u64)dst));
DBUG_ON(cnt != L1_CACHE_ALIGN(cnt));
- if (part->act_state == XPC_P_DEACTIVATING) {
+ if (part->act_state == XPC_P_DEACTIVATING)
return part->reason;
- }
- bte_ret = xp_bte_copy((u64) src, (u64) dst, (u64) cnt,
- (BTE_NORMAL | BTE_WACQUIRE), NULL);
- if (bte_ret == BTE_SUCCESS) {
+ bte_ret = xp_bte_copy((u64)src, (u64)dst, (u64)cnt,
+ (BTE_NORMAL | BTE_WACQUIRE), NULL);
+ if (bte_ret == BTE_SUCCESS)
return xpcSuccess;
- }
dev_dbg(xpc_chan, "xp_bte_copy() from partition %d failed, ret=%d\n",
XPC_PARTID(part), bte_ret);
@@ -291,7 +278,6 @@
return xpc_map_bte_errors(bte_ret);
}
-
/*
* Pull the remote per partition specific variables from the specified
* partition.
@@ -301,41 +287,40 @@
{
u8 buffer[L1_CACHE_BYTES * 2];
struct xpc_vars_part *pulled_entry_cacheline =
- (struct xpc_vars_part *) L1_CACHE_ALIGN((u64) buffer);
+ (struct xpc_vars_part *)L1_CACHE_ALIGN((u64)buffer);
struct xpc_vars_part *pulled_entry;
u64 remote_entry_cacheline_pa, remote_entry_pa;
partid_t partid = XPC_PARTID(part);
enum xpc_retval ret;
-
/* pull the cacheline that contains the variables we're interested in */
DBUG_ON(part->remote_vars_part_pa !=
- L1_CACHE_ALIGN(part->remote_vars_part_pa));
+ L1_CACHE_ALIGN(part->remote_vars_part_pa));
DBUG_ON(sizeof(struct xpc_vars_part) != L1_CACHE_BYTES / 2);
remote_entry_pa = part->remote_vars_part_pa +
- sn_partition_id * sizeof(struct xpc_vars_part);
+ sn_partition_id * sizeof(struct xpc_vars_part);
remote_entry_cacheline_pa = (remote_entry_pa & ~(L1_CACHE_BYTES - 1));
- pulled_entry = (struct xpc_vars_part *) ((u64) pulled_entry_cacheline +
- (remote_entry_pa & (L1_CACHE_BYTES - 1)));
+ pulled_entry = (struct xpc_vars_part *)((u64)pulled_entry_cacheline +
+ (remote_entry_pa &
+ (L1_CACHE_BYTES - 1)));
ret = xpc_pull_remote_cachelines(part, pulled_entry_cacheline,
- (void *) remote_entry_cacheline_pa,
- L1_CACHE_BYTES);
+ (void *)remote_entry_cacheline_pa,
+ L1_CACHE_BYTES);
if (ret != xpcSuccess) {
dev_dbg(xpc_chan, "failed to pull XPC vars_part from "
"partition %d, ret=%d\n", partid, ret);
return ret;
}
-
/* see if they've been set up yet */
if (pulled_entry->magic != XPC_VP_MAGIC1 &&
- pulled_entry->magic != XPC_VP_MAGIC2) {
+ pulled_entry->magic != XPC_VP_MAGIC2) {
if (pulled_entry->magic != 0) {
dev_dbg(xpc_chan, "partition %d's XPC vars_part for "
@@ -353,8 +338,8 @@
/* validate the variables */
if (pulled_entry->GPs_pa == 0 ||
- pulled_entry->openclose_args_pa == 0 ||
- pulled_entry->IPI_amo_pa == 0) {
+ pulled_entry->openclose_args_pa == 0 ||
+ pulled_entry->IPI_amo_pa == 0) {
dev_err(xpc_chan, "partition %d's XPC vars_part for "
"partition %d are not valid\n", partid,
@@ -366,29 +351,26 @@
part->remote_GPs_pa = pulled_entry->GPs_pa;
part->remote_openclose_args_pa =
- pulled_entry->openclose_args_pa;
+ pulled_entry->openclose_args_pa;
part->remote_IPI_amo_va =
- (AMO_t *) __va(pulled_entry->IPI_amo_pa);
+ (AMO_t *)__va(pulled_entry->IPI_amo_pa);
part->remote_IPI_nasid = pulled_entry->IPI_nasid;
part->remote_IPI_phys_cpuid = pulled_entry->IPI_phys_cpuid;
- if (part->nchannels > pulled_entry->nchannels) {
+ if (part->nchannels > pulled_entry->nchannels)
part->nchannels = pulled_entry->nchannels;
- }
/* let the other side know that we've pulled their variables */
xpc_vars_part[partid].magic = XPC_VP_MAGIC2;
}
- if (pulled_entry->magic == XPC_VP_MAGIC1) {
+ if (pulled_entry->magic == XPC_VP_MAGIC1)
return xpcRetry;
- }
return xpcSuccess;
}
-
/*
* Get the IPI flags and pull the openclose args and/or remote GPs as needed.
*/
@@ -399,23 +381,23 @@
u64 IPI_amo;
enum xpc_retval ret;
-
/*
* See if there are any IPI flags to be handled.
*/
spin_lock_irqsave(&part->IPI_lock, irq_flags);
- if ((IPI_amo = part->local_IPI_amo) != 0) {
+ IPI_amo = part->local_IPI_amo;
+ if (IPI_amo != 0)
part->local_IPI_amo = 0;
- }
- spin_unlock_irqrestore(&part->IPI_lock, irq_flags);
+ spin_unlock_irqrestore(&part->IPI_lock, irq_flags);
if (XPC_ANY_OPENCLOSE_IPI_FLAGS_SET(IPI_amo)) {
ret = xpc_pull_remote_cachelines(part,
- part->remote_openclose_args,
- (void *) part->remote_openclose_args_pa,
- XPC_OPENCLOSE_ARGS_SIZE);
+ part->remote_openclose_args,
+ (void *)part->
+ remote_openclose_args_pa,
+ XPC_OPENCLOSE_ARGS_SIZE);
if (ret != xpcSuccess) {
XPC_DEACTIVATE_PARTITION(part, ret);
@@ -430,8 +412,8 @@
if (XPC_ANY_MSG_IPI_FLAGS_SET(IPI_amo)) {
ret = xpc_pull_remote_cachelines(part, part->remote_GPs,
- (void *) part->remote_GPs_pa,
- XPC_GP_SIZE);
+ (void *)part->remote_GPs_pa,
+ XPC_GP_SIZE);
if (ret != xpcSuccess) {
XPC_DEACTIVATE_PARTITION(part, ret);
@@ -446,7 +428,6 @@
return IPI_amo;
}
-
/*
* Allocate the local message queue and the notify queue.
*/
@@ -457,20 +438,14 @@
int nentries;
size_t nbytes;
-
- // >>> may want to check for ch->flags & XPC_C_DISCONNECTING between
- // >>> iterations of the for-loop, bail if set?
-
- // >>> should we impose a minimum #of entries? like 4 or 8?
for (nentries = ch->local_nentries; nentries > 0; nentries--) {
nbytes = nentries * ch->msg_size;
ch->local_msgqueue = xpc_kzalloc_cacheline_aligned(nbytes,
- GFP_KERNEL,
- &ch->local_msgqueue_base);
- if (ch->local_msgqueue == NULL) {
+ GFP_KERNEL,
+ &ch->local_msgqueue_base);
+ if (ch->local_msgqueue == NULL)
continue;
- }
nbytes = nentries * sizeof(struct xpc_notify);
ch->notify_queue = kzalloc(nbytes, GFP_KERNEL);
@@ -497,7 +472,6 @@
return xpcNoMemory;
}
-
/*
* Allocate the cached remote message queue.
*/
@@ -508,22 +482,16 @@
int nentries;
size_t nbytes;
-
DBUG_ON(ch->remote_nentries <= 0);
- // >>> may want to check for ch->flags & XPC_C_DISCONNECTING between
- // >>> iterations of the for-loop, bail if set?
-
- // >>> should we impose a minimum #of entries? like 4 or 8?
for (nentries = ch->remote_nentries; nentries > 0; nentries--) {
nbytes = nentries * ch->msg_size;
ch->remote_msgqueue = xpc_kzalloc_cacheline_aligned(nbytes,
- GFP_KERNEL,
- &ch->remote_msgqueue_base);
- if (ch->remote_msgqueue == NULL) {
+ GFP_KERNEL,
+ &ch->remote_msgqueue_base);
+ if (ch->remote_msgqueue == NULL)
continue;
- }
spin_lock_irqsave(&ch->lock, irq_flags);
if (nentries < ch->remote_nentries) {
@@ -542,7 +510,6 @@
return xpcNoMemory;
}
-
/*
* Allocate message queues and other stuff associated with a channel.
*
@@ -554,14 +521,14 @@
unsigned long irq_flags;
enum xpc_retval ret;
-
DBUG_ON(ch->flags & XPC_C_SETUP);
- if ((ret = xpc_allocate_local_msgqueue(ch)) != xpcSuccess) {
+ ret = xpc_allocate_local_msgqueue(ch);
+ if (ret != xpcSuccess)
return ret;
- }
- if ((ret = xpc_allocate_remote_msgqueue(ch)) != xpcSuccess) {
+ ret = xpc_allocate_remote_msgqueue(ch);
+ if (ret != xpcSuccess) {
kfree(ch->local_msgqueue_base);
ch->local_msgqueue = NULL;
kfree(ch->notify_queue);
@@ -576,7 +543,6 @@
return xpcSuccess;
}
-
/*
* Process a connect message from a remote partition.
*
@@ -588,11 +554,10 @@
{
enum xpc_retval ret;
-
DBUG_ON(!spin_is_locked(&ch->lock));
if (!(ch->flags & XPC_C_OPENREQUEST) ||
- !(ch->flags & XPC_C_ROPENREQUEST)) {
+ !(ch->flags & XPC_C_ROPENREQUEST)) {
/* nothing more to do for now */
return;
}
@@ -603,12 +568,11 @@
ret = xpc_allocate_msgqueues(ch);
spin_lock_irqsave(&ch->lock, *irq_flags);
- if (ret != xpcSuccess) {
+ if (ret != xpcSuccess)
XPC_DISCONNECT_CHANNEL(ch, ret, irq_flags);
- }
- if (ch->flags & (XPC_C_CONNECTED | XPC_C_DISCONNECTING)) {
+
+ if (ch->flags & (XPC_C_CONNECTED | XPC_C_DISCONNECTING))
return;
- }
DBUG_ON(!(ch->flags & XPC_C_SETUP));
DBUG_ON(ch->local_msgqueue == NULL);
@@ -620,23 +584,21 @@
xpc_IPI_send_openreply(ch, irq_flags);
}
- if (!(ch->flags & XPC_C_ROPENREPLY)) {
+ if (!(ch->flags & XPC_C_ROPENREPLY))
return;
- }
DBUG_ON(ch->remote_msgqueue_pa == 0);
ch->flags = (XPC_C_CONNECTED | XPC_C_SETUP); /* clear all else */
dev_info(xpc_chan, "channel %d to partition %d connected\n",
- ch->number, ch->partid);
+ ch->number, ch->partid);
spin_unlock_irqrestore(&ch->lock, *irq_flags);
xpc_create_kthreads(ch, 1, 0);
spin_lock_irqsave(&ch->lock, *irq_flags);
}
-
/*
* Notify those who wanted to be notified upon delivery of their message.
*/
@@ -647,7 +609,6 @@
u8 notify_type;
s64 get = ch->w_remote_GP.get - 1;
-
while (++get < put && atomic_read(&ch->n_to_notify) > 0) {
notify = &ch->notify_queue[get % ch->local_nentries];
@@ -660,8 +621,7 @@
*/
notify_type = notify->type;
if (notify_type == 0 ||
- cmpxchg(¬ify->type, notify_type, 0) !=
- notify_type) {
+ cmpxchg(¬ify->type, notify_type, 0) != notify_type) {
continue;
}
@@ -672,20 +632,19 @@
if (notify->func != NULL) {
dev_dbg(xpc_chan, "notify->func() called, notify=0x%p, "
"msg_number=%ld, partid=%d, channel=%d\n",
- (void *) notify, get, ch->partid, ch->number);
+ (void *)notify, get, ch->partid, ch->number);
notify->func(reason, ch->partid, ch->number,
- notify->key);
+ notify->key);
dev_dbg(xpc_chan, "notify->func() returned, "
"notify=0x%p, msg_number=%ld, partid=%d, "
- "channel=%d\n", (void *) notify, get,
+ "channel=%d\n", (void *)notify, get,
ch->partid, ch->number);
}
}
}
-
/*
* Free up message queues and other stuff that were allocated for the specified
* channel.
@@ -733,7 +692,6 @@
}
}
-
/*
* spin_lock_irqsave() is expected to be held on entry.
*/
@@ -743,46 +701,41 @@
struct xpc_partition *part = &xpc_partitions[ch->partid];
u32 channel_was_connected = (ch->flags & XPC_C_WASCONNECTED);
-
DBUG_ON(!spin_is_locked(&ch->lock));
- if (!(ch->flags & XPC_C_DISCONNECTING)) {
+ if (!(ch->flags & XPC_C_DISCONNECTING))
return;
- }
DBUG_ON(!(ch->flags & XPC_C_CLOSEREQUEST));
/* make sure all activity has settled down first */
if (atomic_read(&ch->kthreads_assigned) > 0 ||
- atomic_read(&ch->references) > 0) {
+ atomic_read(&ch->references) > 0) {
return;
}
DBUG_ON((ch->flags & XPC_C_CONNECTEDCALLOUT_MADE) &&
- !(ch->flags & XPC_C_DISCONNECTINGCALLOUT_MADE));
+ !(ch->flags & XPC_C_DISCONNECTINGCALLOUT_MADE));
if (part->act_state == XPC_P_DEACTIVATING) {
/* can't proceed until the other side disengages from us */
- if (xpc_partition_engaged(1UL << ch->partid)) {
+ if (xpc_partition_engaged(1UL << ch->partid))
return;
- }
} else {
/* as long as the other side is up do the full protocol */
- if (!(ch->flags & XPC_C_RCLOSEREQUEST)) {
+ if (!(ch->flags & XPC_C_RCLOSEREQUEST))
return;
- }
if (!(ch->flags & XPC_C_CLOSEREPLY)) {
ch->flags |= XPC_C_CLOSEREPLY;
xpc_IPI_send_closereply(ch, irq_flags);
}
- if (!(ch->flags & XPC_C_RCLOSEREPLY)) {
+ if (!(ch->flags & XPC_C_RCLOSEREPLY))
return;
- }
}
/* wake those waiting for notify completion */
@@ -809,7 +762,7 @@
if (channel_was_connected) {
dev_info(xpc_chan, "channel %d to partition %d disconnected, "
- "reason=%d\n", ch->number, ch->partid, ch->reason);
+ "reason=%d\n", ch->number, ch->partid, ch->reason);
}
if (ch->flags & XPC_C_WDISCONNECT) {
@@ -820,35 +773,32 @@
/* time to take action on any delayed IPI flags */
spin_lock(&part->IPI_lock);
XPC_SET_IPI_FLAGS(part->local_IPI_amo, ch->number,
- ch->delayed_IPI_flags);
+ ch->delayed_IPI_flags);
spin_unlock(&part->IPI_lock);
}
ch->delayed_IPI_flags = 0;
}
}
-
/*
* Process a change in the channel's remote connection state.
*/
static void
xpc_process_openclose_IPI(struct xpc_partition *part, int ch_number,
- u8 IPI_flags)
+ u8 IPI_flags)
{
unsigned long irq_flags;
struct xpc_openclose_args *args =
- &part->remote_openclose_args[ch_number];
+ &part->remote_openclose_args[ch_number];
struct xpc_channel *ch = &part->channels[ch_number];
enum xpc_retval reason;
-
-
spin_lock_irqsave(&ch->lock, irq_flags);
again:
if ((ch->flags & XPC_C_DISCONNECTED) &&
- (ch->flags & XPC_C_WDISCONNECT)) {
+ (ch->flags & XPC_C_WDISCONNECT)) {
/*
* Delay processing IPI flags until thread waiting disconnect
* has had a chance to see that the channel is disconnected.
@@ -858,7 +808,6 @@
return;
}
-
if (IPI_flags & XPC_IPI_CLOSEREQUEST) {
dev_dbg(xpc_chan, "XPC_IPI_CLOSEREQUEST (reason=%d) received "
@@ -890,13 +839,14 @@
if (ch->flags & XPC_C_DISCONNECTED) {
if (!(IPI_flags & XPC_IPI_OPENREQUEST)) {
if ((XPC_GET_IPI_FLAGS(part->local_IPI_amo,
- ch_number) & XPC_IPI_OPENREQUEST)) {
+ ch_number) &
+ XPC_IPI_OPENREQUEST)) {
DBUG_ON(ch->delayed_IPI_flags != 0);
spin_lock(&part->IPI_lock);
XPC_SET_IPI_FLAGS(part->local_IPI_amo,
- ch_number,
- XPC_IPI_CLOSEREQUEST);
+ ch_number,
+ XPC_IPI_CLOSEREQUEST);
spin_unlock(&part->IPI_lock);
}
spin_unlock_irqrestore(&ch->lock, irq_flags);
@@ -921,11 +871,10 @@
if (!(ch->flags & XPC_C_DISCONNECTING)) {
reason = args->reason;
- if (reason <= xpcSuccess || reason > xpcUnknownReason) {
+ if (reason <= xpcSuccess || reason > xpcUnknownReason)
reason = xpcUnknownReason;
- } else if (reason == xpcUnregistering) {
+ else if (reason == xpcUnregistering)
reason = xpcOtherUnregistering;
- }
XPC_DISCONNECT_CHANNEL(ch, reason, &irq_flags);
@@ -937,7 +886,6 @@
xpc_process_disconnect(ch, &irq_flags);
}
-
if (IPI_flags & XPC_IPI_CLOSEREPLY) {
dev_dbg(xpc_chan, "XPC_IPI_CLOSEREPLY received from partid=%d,"
@@ -953,12 +901,13 @@
if (!(ch->flags & XPC_C_RCLOSEREQUEST)) {
if ((XPC_GET_IPI_FLAGS(part->local_IPI_amo, ch_number)
- & XPC_IPI_CLOSEREQUEST)) {
+ & XPC_IPI_CLOSEREQUEST)) {
DBUG_ON(ch->delayed_IPI_flags != 0);
spin_lock(&part->IPI_lock);
XPC_SET_IPI_FLAGS(part->local_IPI_amo,
- ch_number, XPC_IPI_CLOSEREPLY);
+ ch_number,
+ XPC_IPI_CLOSEREPLY);
spin_unlock(&part->IPI_lock);
}
spin_unlock_irqrestore(&ch->lock, irq_flags);
@@ -973,7 +922,6 @@
}
}
-
if (IPI_flags & XPC_IPI_OPENREQUEST) {
dev_dbg(xpc_chan, "XPC_IPI_OPENREQUEST (msg_size=%d, "
@@ -982,7 +930,7 @@
ch->partid, ch->number);
if (part->act_state == XPC_P_DEACTIVATING ||
- (ch->flags & XPC_C_ROPENREQUEST)) {
+ (ch->flags & XPC_C_ROPENREQUEST)) {
spin_unlock_irqrestore(&ch->lock, irq_flags);
return;
}
@@ -993,9 +941,9 @@
return;
}
DBUG_ON(!(ch->flags & (XPC_C_DISCONNECTED |
- XPC_C_OPENREQUEST)));
+ XPC_C_OPENREQUEST)));
DBUG_ON(ch->flags & (XPC_C_ROPENREQUEST | XPC_C_ROPENREPLY |
- XPC_C_OPENREPLY | XPC_C_CONNECTED));
+ XPC_C_OPENREPLY | XPC_C_CONNECTED));
/*
* The meaningful OPENREQUEST connection state fields are:
@@ -1011,11 +959,10 @@
ch->flags |= (XPC_C_ROPENREQUEST | XPC_C_CONNECTING);
ch->remote_nentries = args->local_nentries;
-
if (ch->flags & XPC_C_OPENREQUEST) {
if (args->msg_size != ch->msg_size) {
XPC_DISCONNECT_CHANNEL(ch, xpcUnequalMsgSizes,
- &irq_flags);
+ &irq_flags);
spin_unlock_irqrestore(&ch->lock, irq_flags);
return;
}
@@ -1031,7 +978,6 @@
xpc_process_connect(ch, &irq_flags);
}
-
if (IPI_flags & XPC_IPI_OPENREPLY) {
dev_dbg(xpc_chan, "XPC_IPI_OPENREPLY (local_msgqueue_pa=0x%lx, "
@@ -1046,7 +992,7 @@
}
if (!(ch->flags & XPC_C_OPENREQUEST)) {
XPC_DISCONNECT_CHANNEL(ch, xpcOpenCloseError,
- &irq_flags);
+ &irq_flags);
spin_unlock_irqrestore(&ch->lock, irq_flags);
return;
}
@@ -1057,7 +1003,7 @@
/*
* The meaningful OPENREPLY connection state fields are:
* local_msgqueue_pa = physical address of remote
- * partition's local_msgqueue
+ * partition's local_msgqueue
* local_nentries = remote partition's local_nentries
* remote_nentries = remote partition's remote_nentries
*/
@@ -1093,7 +1039,6 @@
spin_unlock_irqrestore(&ch->lock, irq_flags);
}
-
/*
* Attempt to establish a channel connection to a remote partition.
*/
@@ -1103,10 +1048,8 @@
unsigned long irq_flags;
struct xpc_registration *registration = &xpc_registrations[ch->number];
-
- if (mutex_trylock(®istration->mutex) == 0) {
+ if (mutex_trylock(®istration->mutex) == 0)
return xpcRetry;
- }
if (!XPC_CHANNEL_REGISTERED(ch->number)) {
mutex_unlock(®istration->mutex);
@@ -1124,7 +1067,6 @@
return ch->reason;
}
-
/* add info from the channel connect registration to the channel */
ch->kthreads_assigned_limit = registration->assigned_limit;
@@ -1154,7 +1096,7 @@
*/
mutex_unlock(®istration->mutex);
XPC_DISCONNECT_CHANNEL(ch, xpcUnequalMsgSizes,
- &irq_flags);
+ &irq_flags);
spin_unlock_irqrestore(&ch->lock, irq_flags);
return xpcUnequalMsgSizes;
}
@@ -1169,7 +1111,6 @@
mutex_unlock(®istration->mutex);
-
/* initiate the connection */
ch->flags |= (XPC_C_OPENREQUEST | XPC_C_CONNECTING);
@@ -1182,7 +1123,6 @@
return xpcSuccess;
}
-
/*
* Clear some of the msg flags in the local message queue.
*/
@@ -1192,16 +1132,15 @@
struct xpc_msg *msg;
s64 get;
-
get = ch->w_remote_GP.get;
do {
- msg = (struct xpc_msg *) ((u64) ch->local_msgqueue +
- (get % ch->local_nentries) * ch->msg_size);
+ msg = (struct xpc_msg *)((u64)ch->local_msgqueue +
+ (get % ch->local_nentries) *
+ ch->msg_size);
msg->flags = 0;
- } while (++get < (volatile s64) ch->remote_GP.get);
+ } while (++get < ch->remote_GP.get);
}
-
/*
* Clear some of the msg flags in the remote message queue.
*/
@@ -1211,43 +1150,39 @@
struct xpc_msg *msg;
s64 put;
-
put = ch->w_remote_GP.put;
do {
- msg = (struct xpc_msg *) ((u64) ch->remote_msgqueue +
- (put % ch->remote_nentries) * ch->msg_size);
+ msg = (struct xpc_msg *)((u64)ch->remote_msgqueue +
+ (put % ch->remote_nentries) *
+ ch->msg_size);
msg->flags = 0;
- } while (++put < (volatile s64) ch->remote_GP.put);
+ } while (++put < ch->remote_GP.put);
}
-
static void
xpc_process_msg_IPI(struct xpc_partition *part, int ch_number)
{
struct xpc_channel *ch = &part->channels[ch_number];
int nmsgs_sent;
-
ch->remote_GP = part->remote_GPs[ch_number];
-
/* See what, if anything, has changed for each connected channel */
xpc_msgqueue_ref(ch);
if (ch->w_remote_GP.get == ch->remote_GP.get &&
- ch->w_remote_GP.put == ch->remote_GP.put) {
+ ch->w_remote_GP.put == ch->remote_GP.put) {
/* nothing changed since GPs were last pulled */
xpc_msgqueue_deref(ch);
return;
}
- if (!(ch->flags & XPC_C_CONNECTED)){
+ if (!(ch->flags & XPC_C_CONNECTED)) {
xpc_msgqueue_deref(ch);
return;
}
-
/*
* First check to see if messages recently sent by us have been
* received by the other side. (The remote GET value will have
@@ -1269,7 +1204,7 @@
* received and delivered by the other side.
*/
xpc_notify_senders(ch, xpcMsgDelivered,
- ch->remote_GP.get);
+ ch->remote_GP.get);
}
/*
@@ -1288,12 +1223,10 @@
* If anyone was waiting for message queue entries to become
* available, wake them up.
*/
- if (atomic_read(&ch->n_on_msg_allocate_wq) > 0) {
+ if (atomic_read(&ch->n_on_msg_allocate_wq) > 0)
wake_up(&ch->msg_allocate_wq);
- }
}
-
/*
* Now check for newly sent messages by the other side. (The remote
* PUT value will have changed since we last looked at it.)
@@ -1318,16 +1251,14 @@
"delivered=%d, partid=%d, channel=%d\n",
nmsgs_sent, ch->partid, ch->number);
- if (ch->flags & XPC_C_CONNECTEDCALLOUT_MADE) {
+ if (ch->flags & XPC_C_CONNECTEDCALLOUT_MADE)
xpc_activate_kthreads(ch, nmsgs_sent);
- }
}
}
xpc_msgqueue_deref(ch);
}
-
void
xpc_process_channel_activity(struct xpc_partition *part)
{
@@ -1337,7 +1268,6 @@
int ch_number;
u32 ch_flags;
-
IPI_amo = xpc_get_IPI_flags(part);
/*
@@ -1350,7 +1280,6 @@
for (ch_number = 0; ch_number < part->nchannels; ch_number++) {
ch = &part->channels[ch_number];
-
/*
* Process any open or close related IPI flags, and then deal
* with connecting or disconnecting the channel as required.
@@ -1358,9 +1287,8 @@
IPI_flags = XPC_GET_IPI_FLAGS(IPI_amo, ch_number);
- if (XPC_ANY_OPENCLOSE_IPI_FLAGS_SET(IPI_flags)) {
+ if (XPC_ANY_OPENCLOSE_IPI_FLAGS_SET(IPI_flags))
xpc_process_openclose_IPI(part, ch_number, IPI_flags);
- }
ch_flags = ch->flags; /* need an atomic snapshot of flags */
@@ -1371,14 +1299,13 @@
continue;
}
- if (part->act_state == XPC_P_DEACTIVATING) {
+ if (part->act_state == XPC_P_DEACTIVATING)
continue;
- }
if (!(ch_flags & XPC_C_CONNECTED)) {
if (!(ch_flags & XPC_C_OPENREQUEST)) {
DBUG_ON(ch_flags & XPC_C_SETUP);
- (void) xpc_connect_channel(ch);
+ (void)xpc_connect_channel(ch);
} else {
spin_lock_irqsave(&ch->lock, irq_flags);
xpc_process_connect(ch, &irq_flags);
@@ -1387,20 +1314,17 @@
continue;
}
-
/*
* Process any message related IPI flags, this may involve the
* activation of kthreads to deliver any pending messages sent
* from the other partition.
*/
- if (XPC_ANY_MSG_IPI_FLAGS_SET(IPI_flags)) {
+ if (XPC_ANY_MSG_IPI_FLAGS_SET(IPI_flags))
xpc_process_msg_IPI(part, ch_number);
- }
}
}
-
/*
* XPC's heartbeat code calls this function to inform XPC that a partition is
* going down. XPC responds by tearing down the XPartition Communication
@@ -1417,7 +1341,6 @@
int ch_number;
struct xpc_channel *ch;
-
dev_dbg(xpc_chan, "deactivating partition %d, reason=%d\n",
XPC_PARTID(part), reason);
@@ -1426,7 +1349,6 @@
return;
}
-
/* disconnect channels associated with the partition going down */
for (ch_number = 0; ch_number < part->nchannels; ch_number++) {
@@ -1446,7 +1368,6 @@
xpc_part_deref(part);
}
-
/*
* Teardown the infrastructure necessary to support XPartition Communication
* between the specified remote partition and the local one.
@@ -1456,7 +1377,6 @@
{
partid_t partid = XPC_PARTID(part);
-
/*
* We start off by making this partition inaccessible to local
* processes by marking it as no longer setup. Then we make it
@@ -1473,9 +1393,7 @@
xpc_vars_part[partid].magic = 0;
-
- free_irq(SGI_XPC_NOTIFY, (void *) (u64) partid);
-
+ free_irq(SGI_XPC_NOTIFY, (void *)(u64)partid);
/*
* Before proceeding with the teardown we have to wait until all
@@ -1483,7 +1401,6 @@
*/
wait_event(part->teardown_wq, (atomic_read(&part->references) == 0));
-
/* now we can begin tearing down the infrastructure */
part->setup_state = XPC_P_TORNDOWN;
@@ -1504,7 +1421,6 @@
part->local_IPI_amo_va = NULL;
}
-
/*
* Called by XP at the time of channel connection registration to cause
* XPC to establish connections to all currently active partitions.
@@ -1516,7 +1432,6 @@
struct xpc_partition *part;
struct xpc_channel *ch;
-
DBUG_ON(ch_number < 0 || ch_number >= XPC_NCHANNELS);
for (partid = 1; partid < XP_MAX_PARTITIONS; partid++) {
@@ -1535,7 +1450,6 @@
}
}
-
void
xpc_connected_callout(struct xpc_channel *ch)
{
@@ -1546,14 +1460,13 @@
"partid=%d, channel=%d\n", ch->partid, ch->number);
ch->func(xpcConnected, ch->partid, ch->number,
- (void *) (u64) ch->local_nentries, ch->key);
+ (void *)(u64)ch->local_nentries, ch->key);
dev_dbg(xpc_chan, "ch->func() returned, reason=xpcConnected, "
"partid=%d, channel=%d\n", ch->partid, ch->number);
}
}
-
/*
* Called by XP at the time of channel connection unregistration to cause
* XPC to teardown all current connections for the specified channel.
@@ -1575,7 +1488,6 @@
struct xpc_partition *part;
struct xpc_channel *ch;
-
DBUG_ON(ch_number < 0 || ch_number >= XPC_NCHANNELS);
/* initiate the channel disconnect for every active partition */
@@ -1592,7 +1504,7 @@
ch->flags |= XPC_C_WDISCONNECT;
XPC_DISCONNECT_CHANNEL(ch, xpcUnregistering,
- &irq_flags);
+ &irq_flags);
}
spin_unlock_irqrestore(&ch->lock, irq_flags);
@@ -1605,7 +1517,6 @@
xpc_disconnect_wait(ch_number);
}
-
/*
* To disconnect a channel, and reflect it back to all who may be waiting.
*
@@ -1617,16 +1528,15 @@
*/
void
xpc_disconnect_channel(const int line, struct xpc_channel *ch,
- enum xpc_retval reason, unsigned long *irq_flags)
+ enum xpc_retval reason, unsigned long *irq_flags)
{
u32 channel_was_connected = (ch->flags & XPC_C_CONNECTED);
-
DBUG_ON(!spin_is_locked(&ch->lock));
- if (ch->flags & (XPC_C_DISCONNECTING | XPC_C_DISCONNECTED)) {
+ if (ch->flags & (XPC_C_DISCONNECTING | XPC_C_DISCONNECTED))
return;
- }
+
DBUG_ON(!(ch->flags & (XPC_C_CONNECTING | XPC_C_CONNECTED)));
dev_dbg(xpc_chan, "reason=%d, line=%d, partid=%d, channel=%d\n",
@@ -1637,14 +1547,13 @@
ch->flags |= (XPC_C_CLOSEREQUEST | XPC_C_DISCONNECTING);
/* some of these may not have been set */
ch->flags &= ~(XPC_C_OPENREQUEST | XPC_C_OPENREPLY |
- XPC_C_ROPENREQUEST | XPC_C_ROPENREPLY |
- XPC_C_CONNECTING | XPC_C_CONNECTED);
+ XPC_C_ROPENREQUEST | XPC_C_ROPENREPLY |
+ XPC_C_CONNECTING | XPC_C_CONNECTED);
xpc_IPI_send_closerequest(ch, irq_flags);
- if (channel_was_connected) {
+ if (channel_was_connected)
ch->flags |= XPC_C_WASCONNECTED;
- }
spin_unlock_irqrestore(&ch->lock, *irq_flags);
@@ -1653,20 +1562,18 @@
wake_up_all(&ch->idle_wq);
} else if ((ch->flags & XPC_C_CONNECTEDCALLOUT_MADE) &&
- !(ch->flags & XPC_C_DISCONNECTINGCALLOUT)) {
+ !(ch->flags & XPC_C_DISCONNECTINGCALLOUT)) {
/* start a kthread that will do the xpcDisconnecting callout */
xpc_create_kthreads(ch, 1, 1);
}
/* wake those waiting to allocate an entry from the local msg queue */
- if (atomic_read(&ch->n_on_msg_allocate_wq) > 0) {
+ if (atomic_read(&ch->n_on_msg_allocate_wq) > 0)
wake_up(&ch->msg_allocate_wq);
- }
spin_lock_irqsave(&ch->lock, *irq_flags);
}
-
void
xpc_disconnect_callout(struct xpc_channel *ch, enum xpc_retval reason)
{
@@ -1687,7 +1594,6 @@
}
}
-
/*
* Wait for a message entry to become available for the specified channel,
* but don't wait any longer than 1 jiffy.
@@ -1697,9 +1603,8 @@
{
enum xpc_retval ret;
-
if (ch->flags & XPC_C_DISCONNECTING) {
- DBUG_ON(ch->reason == xpcInterrupted); // >>> Is this true?
+ DBUG_ON(ch->reason == xpcInterrupted);
return ch->reason;
}
@@ -1709,7 +1614,7 @@
if (ch->flags & XPC_C_DISCONNECTING) {
ret = ch->reason;
- DBUG_ON(ch->reason == xpcInterrupted); // >>> Is this true?
+ DBUG_ON(ch->reason == xpcInterrupted);
} else if (ret == 0) {
ret = xpcTimeout;
} else {
@@ -1719,20 +1624,18 @@
return ret;
}
-
/*
* Allocate an entry for a message from the message queue associated with the
* specified channel.
*/
static enum xpc_retval
xpc_allocate_msg(struct xpc_channel *ch, u32 flags,
- struct xpc_msg **address_of_msg)
+ struct xpc_msg **address_of_msg)
{
struct xpc_msg *msg;
enum xpc_retval ret;
s64 put;
-
/* this reference will be dropped in xpc_send_msg() */
xpc_msgqueue_ref(ch);
@@ -1745,7 +1648,6 @@
return xpcNotConnected;
}
-
/*
* Get the next available message entry from the local message queue.
* If none are available, we'll make sure that we grab the latest
@@ -1755,25 +1657,23 @@
while (1) {
- put = (volatile s64) ch->w_local_GP.put;
- if (put - (volatile s64) ch->w_remote_GP.get <
- ch->local_nentries) {
+ put = ch->w_local_GP.put;
+ rmb(); /* guarantee that .put loads before .get */
+ if (put - ch->w_remote_GP.get < ch->local_nentries) {
/* There are available message entries. We need to try
* to secure one for ourselves. We'll do this by trying
* to increment w_local_GP.put as long as someone else
* doesn't beat us to it. If they do, we'll have to
* try again.
- */
- if (cmpxchg(&ch->w_local_GP.put, put, put + 1) ==
- put) {
+ */
+ if (cmpxchg(&ch->w_local_GP.put, put, put + 1) == put) {
/* we got the entry referenced by put */
break;
}
continue; /* try again */
}
-
/*
* There aren't any available msg entries at this time.
*
@@ -1783,9 +1683,8 @@
* that will cause the IPI handler to fetch the latest
* GP values as if an IPI was sent by the other side.
*/
- if (ret == xpcTimeout) {
+ if (ret == xpcTimeout)
xpc_IPI_send_local_msgrequest(ch);
- }
if (flags & XPC_NOWAIT) {
xpc_msgqueue_deref(ch);
@@ -1799,25 +1698,22 @@
}
}
-
/* get the message's address and initialize it */
- msg = (struct xpc_msg *) ((u64) ch->local_msgqueue +
- (put % ch->local_nentries) * ch->msg_size);
-
+ msg = (struct xpc_msg *)((u64)ch->local_msgqueue +
+ (put % ch->local_nentries) * ch->msg_size);
DBUG_ON(msg->flags != 0);
msg->number = put;
dev_dbg(xpc_chan, "w_local_GP.put changed to %ld; msg=0x%p, "
"msg_number=%ld, partid=%d, channel=%d\n", put + 1,
- (void *) msg, msg->number, ch->partid, ch->number);
+ (void *)msg, msg->number, ch->partid, ch->number);
*address_of_msg = msg;
return xpcSuccess;
}
-
/*
* Allocate an entry for a message from the message queue associated with the
* specified channel. NOTE that this routine can sleep waiting for a message
@@ -1838,7 +1734,6 @@
enum xpc_retval ret = xpcUnknownReason;
struct xpc_msg *msg = NULL;
-
DBUG_ON(partid <= 0 || partid >= XP_MAX_PARTITIONS);
DBUG_ON(ch_number < 0 || ch_number >= part->nchannels);
@@ -1848,15 +1743,13 @@
ret = xpc_allocate_msg(&part->channels[ch_number], flags, &msg);
xpc_part_deref(part);
- if (msg != NULL) {
+ if (msg != NULL)
*payload = &msg->payload;
- }
}
return ret;
}
-
/*
* Now we actually send the messages that are ready to be sent by advancing
* the local message queue's Put value and then send an IPI to the recipient
@@ -1869,20 +1762,18 @@
s64 put = initial_put + 1;
int send_IPI = 0;
-
while (1) {
while (1) {
- if (put == (volatile s64) ch->w_local_GP.put) {
+ if (put == ch->w_local_GP.put)
break;
- }
- msg = (struct xpc_msg *) ((u64) ch->local_msgqueue +
- (put % ch->local_nentries) * ch->msg_size);
+ msg = (struct xpc_msg *)((u64)ch->local_msgqueue +
+ (put % ch->local_nentries) *
+ ch->msg_size);
- if (!(msg->flags & XPC_M_READY)) {
+ if (!(msg->flags & XPC_M_READY))
break;
- }
put++;
}
@@ -1893,9 +1784,9 @@
}
if (cmpxchg_rel(&ch->local_GP->put, initial_put, put) !=
- initial_put) {
+ initial_put) {
/* someone else beat us to it */
- DBUG_ON((volatile s64) ch->local_GP->put < initial_put);
+ DBUG_ON(ch->local_GP->put < initial_put);
break;
}
@@ -1914,12 +1805,10 @@
initial_put = put;
}
- if (send_IPI) {
+ if (send_IPI)
xpc_IPI_send_msgrequest(ch);
- }
}
-
/*
* Common code that does the actual sending of the message by advancing the
* local message queue's Put value and sends an IPI to the partition the
@@ -1927,16 +1816,15 @@
*/
static enum xpc_retval
xpc_send_msg(struct xpc_channel *ch, struct xpc_msg *msg, u8 notify_type,
- xpc_notify_func func, void *key)
+ xpc_notify_func func, void *key)
{
enum xpc_retval ret = xpcSuccess;
struct xpc_notify *notify = notify;
s64 put, msg_number = msg->number;
-
DBUG_ON(notify_type == XPC_N_CALL && func == NULL);
- DBUG_ON((((u64) msg - (u64) ch->local_msgqueue) / ch->msg_size) !=
- msg_number % ch->local_nentries);
+ DBUG_ON((((u64)msg - (u64)ch->local_msgqueue) / ch->msg_size) !=
+ msg_number % ch->local_nentries);
DBUG_ON(msg->flags & XPC_M_READY);
if (ch->flags & XPC_C_DISCONNECTING) {
@@ -1959,7 +1847,7 @@
notify->key = key;
notify->type = notify_type;
- // >>> is a mb() needed here?
+ /* >>> is a mb() needed here? */
if (ch->flags & XPC_C_DISCONNECTING) {
/*
@@ -1970,7 +1858,7 @@
* the notify entry.
*/
if (cmpxchg(¬ify->type, notify_type, 0) ==
- notify_type) {
+ notify_type) {
atomic_dec(&ch->n_to_notify);
ret = ch->reason;
}
@@ -1992,16 +1880,14 @@
/* see if the message is next in line to be sent, if so send it */
put = ch->local_GP->put;
- if (put == msg_number) {
+ if (put == msg_number)
xpc_send_msgs(ch, put);
- }
/* drop the reference grabbed in xpc_allocate_msg() */
xpc_msgqueue_deref(ch);
return ret;
}
-
/*
* Send a message previously allocated using xpc_initiate_allocate() on the
* specified channel connected to the specified partition.
@@ -2029,8 +1915,7 @@
struct xpc_msg *msg = XPC_MSG_ADDRESS(payload);
enum xpc_retval ret;
-
- dev_dbg(xpc_chan, "msg=0x%p, partid=%d, channel=%d\n", (void *) msg,
+ dev_dbg(xpc_chan, "msg=0x%p, partid=%d, channel=%d\n", (void *)msg,
partid, ch_number);
DBUG_ON(partid <= 0 || partid >= XP_MAX_PARTITIONS);
@@ -2042,7 +1927,6 @@
return ret;
}
-
/*
* Send a message previously allocated using xpc_initiate_allocate on the
* specified channel connected to the specified partition.
@@ -2075,14 +1959,13 @@
*/
enum xpc_retval
xpc_initiate_send_notify(partid_t partid, int ch_number, void *payload,
- xpc_notify_func func, void *key)
+ xpc_notify_func func, void *key)
{
struct xpc_partition *part = &xpc_partitions[partid];
struct xpc_msg *msg = XPC_MSG_ADDRESS(payload);
enum xpc_retval ret;
-
- dev_dbg(xpc_chan, "msg=0x%p, partid=%d, channel=%d\n", (void *) msg,
+ dev_dbg(xpc_chan, "msg=0x%p, partid=%d, channel=%d\n", (void *)msg,
partid, ch_number);
DBUG_ON(partid <= 0 || partid >= XP_MAX_PARTITIONS);
@@ -2091,11 +1974,10 @@
DBUG_ON(func == NULL);
ret = xpc_send_msg(&part->channels[ch_number], msg, XPC_N_CALL,
- func, key);
+ func, key);
return ret;
}
-
static struct xpc_msg *
xpc_pull_remote_msg(struct xpc_channel *ch, s64 get)
{
@@ -2105,7 +1987,6 @@
u64 msg_offset;
enum xpc_retval ret;
-
if (mutex_lock_interruptible(&ch->msg_to_pull_mutex) != 0) {
/* we were interrupted by a signal */
return NULL;
@@ -2117,23 +1998,21 @@
msg_index = ch->next_msg_to_pull % ch->remote_nentries;
- DBUG_ON(ch->next_msg_to_pull >=
- (volatile s64) ch->w_remote_GP.put);
- nmsgs = (volatile s64) ch->w_remote_GP.put -
- ch->next_msg_to_pull;
+ DBUG_ON(ch->next_msg_to_pull >= ch->w_remote_GP.put);
+ nmsgs = ch->w_remote_GP.put - ch->next_msg_to_pull;
if (msg_index + nmsgs > ch->remote_nentries) {
/* ignore the ones that wrap the msg queue for now */
nmsgs = ch->remote_nentries - msg_index;
}
msg_offset = msg_index * ch->msg_size;
- msg = (struct xpc_msg *) ((u64) ch->remote_msgqueue +
- msg_offset);
- remote_msg = (struct xpc_msg *) (ch->remote_msgqueue_pa +
- msg_offset);
+ msg = (struct xpc_msg *)((u64)ch->remote_msgqueue + msg_offset);
+ remote_msg = (struct xpc_msg *)(ch->remote_msgqueue_pa +
+ msg_offset);
- if ((ret = xpc_pull_remote_cachelines(part, msg, remote_msg,
- nmsgs * ch->msg_size)) != xpcSuccess) {
+ ret = xpc_pull_remote_cachelines(part, msg, remote_msg,
+ nmsgs * ch->msg_size);
+ if (ret != xpcSuccess) {
dev_dbg(xpc_chan, "failed to pull %d msgs starting with"
" msg %ld from partition %d, channel=%d, "
@@ -2146,8 +2025,6 @@
return NULL;
}
- mb(); /* >>> this may not be needed, we're not sure */
-
ch->next_msg_to_pull += nmsgs;
}
@@ -2155,12 +2032,11 @@
/* return the message we were looking for */
msg_offset = (get % ch->remote_nentries) * ch->msg_size;
- msg = (struct xpc_msg *) ((u64) ch->remote_msgqueue + msg_offset);
+ msg = (struct xpc_msg *)((u64)ch->remote_msgqueue + msg_offset);
return msg;
}
-
/*
* Get a message to be delivered.
*/
@@ -2170,23 +2046,21 @@
struct xpc_msg *msg = NULL;
s64 get;
-
do {
- if ((volatile u32) ch->flags & XPC_C_DISCONNECTING) {
+ if (ch->flags & XPC_C_DISCONNECTING)
break;
- }
- get = (volatile s64) ch->w_local_GP.get;
- if (get == (volatile s64) ch->w_remote_GP.put) {
+ get = ch->w_local_GP.get;
+ rmb(); /* guarantee that .get loads before .put */
+ if (get == ch->w_remote_GP.put)
break;
- }
/* There are messages waiting to be pulled and delivered.
* We need to try to secure one for ourselves. We'll do this
* by trying to increment w_local_GP.get and hope that no one
* else beats us to it. If they do, we'll we'll simply have
* to try again for the next one.
- */
+ */
if (cmpxchg(&ch->w_local_GP.get, get, get + 1) == get) {
/* we got the entry referenced by get */
@@ -2211,7 +2085,6 @@
return msg;
}
-
/*
* Deliver a message to its intended recipient.
*/
@@ -2220,8 +2093,8 @@
{
struct xpc_msg *msg;
-
- if ((msg = xpc_get_deliverable_msg(ch)) != NULL) {
+ msg = xpc_get_deliverable_msg(ch);
+ if (msg != NULL) {
/*
* This ref is taken to protect the payload itself from being
@@ -2235,16 +2108,16 @@
if (ch->func != NULL) {
dev_dbg(xpc_chan, "ch->func() called, msg=0x%p, "
"msg_number=%ld, partid=%d, channel=%d\n",
- (void *) msg, msg->number, ch->partid,
+ (void *)msg, msg->number, ch->partid,
ch->number);
/* deliver the message to its intended recipient */
ch->func(xpcMsgReceived, ch->partid, ch->number,
- &msg->payload, ch->key);
+ &msg->payload, ch->key);
dev_dbg(xpc_chan, "ch->func() returned, msg=0x%p, "
"msg_number=%ld, partid=%d, channel=%d\n",
- (void *) msg, msg->number, ch->partid,
+ (void *)msg, msg->number, ch->partid,
ch->number);
}
@@ -2252,7 +2125,6 @@
}
}
-
/*
* Now we actually acknowledge the messages that have been delivered and ack'd
* by advancing the cached remote message queue's Get value and if requested
@@ -2265,20 +2137,18 @@
s64 get = initial_get + 1;
int send_IPI = 0;
-
while (1) {
while (1) {
- if (get == (volatile s64) ch->w_local_GP.get) {
+ if (get == ch->w_local_GP.get)
break;
- }
- msg = (struct xpc_msg *) ((u64) ch->remote_msgqueue +
- (get % ch->remote_nentries) * ch->msg_size);
+ msg = (struct xpc_msg *)((u64)ch->remote_msgqueue +
+ (get % ch->remote_nentries) *
+ ch->msg_size);
- if (!(msg->flags & XPC_M_DONE)) {
+ if (!(msg->flags & XPC_M_DONE))
break;
- }
msg_flags |= msg->flags;
get++;
@@ -2290,10 +2160,9 @@
}
if (cmpxchg_rel(&ch->local_GP->get, initial_get, get) !=
- initial_get) {
+ initial_get) {
/* someone else beat us to it */
- DBUG_ON((volatile s64) ch->local_GP->get <=
- initial_get);
+ DBUG_ON(ch->local_GP->get <= initial_get);
break;
}
@@ -2312,12 +2181,10 @@
initial_get = get;
}
- if (send_IPI) {
+ if (send_IPI)
xpc_IPI_send_msgrequest(ch);
- }
}
-
/*
* Acknowledge receipt of a delivered message.
*
@@ -2343,17 +2210,16 @@
struct xpc_msg *msg = XPC_MSG_ADDRESS(payload);
s64 get, msg_number = msg->number;
-
DBUG_ON(partid <= 0 || partid >= XP_MAX_PARTITIONS);
DBUG_ON(ch_number < 0 || ch_number >= part->nchannels);
ch = &part->channels[ch_number];
dev_dbg(xpc_chan, "msg=0x%p, msg_number=%ld, partid=%d, channel=%d\n",
- (void *) msg, msg_number, ch->partid, ch->number);
+ (void *)msg, msg_number, ch->partid, ch->number);
- DBUG_ON((((u64) msg - (u64) ch->remote_msgqueue) / ch->msg_size) !=
- msg_number % ch->remote_nentries);
+ DBUG_ON((((u64)msg - (u64)ch->remote_msgqueue) / ch->msg_size) !=
+ msg_number % ch->remote_nentries);
DBUG_ON(msg->flags & XPC_M_DONE);
msg->flags |= XPC_M_DONE;
@@ -2369,11 +2235,9 @@
* been delivered.
*/
get = ch->local_GP->get;
- if (get == msg_number) {
+ if (get == msg_number)
xpc_acknowledge_msgs(ch, get, msg->flags);
- }
/* the call to xpc_msgqueue_ref() was done by xpc_deliver_msg() */
xpc_msgqueue_deref(ch);
}
-
diff --git a/arch/ia64/sn/kernel/xpc_main.c b/drivers/misc/sgi-xp/xpc_main.c
similarity index 81%
rename from arch/ia64/sn/kernel/xpc_main.c
rename to drivers/misc/sgi-xp/xpc_main.c
index 9e0b164..f673ba9 100644
--- a/arch/ia64/sn/kernel/xpc_main.c
+++ b/drivers/misc/sgi-xp/xpc_main.c
@@ -3,10 +3,9 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (c) 2004-2007 Silicon Graphics, Inc. All Rights Reserved.
+ * Copyright (c) 2004-2008 Silicon Graphics, Inc. All Rights Reserved.
*/
-
/*
* Cross Partition Communication (XPC) support - standard version.
*
@@ -44,23 +43,20 @@
*
*/
-
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
-#include <linux/sched.h>
-#include <linux/syscalls.h>
#include <linux/cache.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/reboot.h>
#include <linux/completion.h>
#include <linux/kdebug.h>
+#include <linux/kthread.h>
+#include <linux/uaccess.h>
#include <asm/sn/intr.h>
#include <asm/sn/sn_sal.h>
-#include <asm/uaccess.h>
-#include <asm/sn/xpc.h>
-
+#include "xpc.h"
/* define two XPC debug device structures to be used with dev_dbg() et al */
@@ -81,10 +77,8 @@
struct device *xpc_part = &xpc_part_dbg_subname;
struct device *xpc_chan = &xpc_chan_dbg_subname;
-
static int xpc_kdebug_ignore;
-
/* systune related variables for /proc/sys directories */
static int xpc_hb_interval = XPC_HB_DEFAULT_INTERVAL;
@@ -96,61 +90,56 @@
static int xpc_hb_check_max_interval = 120;
int xpc_disengage_request_timelimit = XPC_DISENGAGE_REQUEST_DEFAULT_TIMELIMIT;
-static int xpc_disengage_request_min_timelimit = 0;
+static int xpc_disengage_request_min_timelimit; /* = 0 */
static int xpc_disengage_request_max_timelimit = 120;
static ctl_table xpc_sys_xpc_hb_dir[] = {
{
- .ctl_name = CTL_UNNUMBERED,
- .procname = "hb_interval",
- .data = &xpc_hb_interval,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = &proc_dointvec_minmax,
- .strategy = &sysctl_intvec,
- .extra1 = &xpc_hb_min_interval,
- .extra2 = &xpc_hb_max_interval
- },
+ .ctl_name = CTL_UNNUMBERED,
+ .procname = "hb_interval",
+ .data = &xpc_hb_interval,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec_minmax,
+ .strategy = &sysctl_intvec,
+ .extra1 = &xpc_hb_min_interval,
+ .extra2 = &xpc_hb_max_interval},
{
- .ctl_name = CTL_UNNUMBERED,
- .procname = "hb_check_interval",
- .data = &xpc_hb_check_interval,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = &proc_dointvec_minmax,
- .strategy = &sysctl_intvec,
- .extra1 = &xpc_hb_check_min_interval,
- .extra2 = &xpc_hb_check_max_interval
- },
+ .ctl_name = CTL_UNNUMBERED,
+ .procname = "hb_check_interval",
+ .data = &xpc_hb_check_interval,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec_minmax,
+ .strategy = &sysctl_intvec,
+ .extra1 = &xpc_hb_check_min_interval,
+ .extra2 = &xpc_hb_check_max_interval},
{}
};
static ctl_table xpc_sys_xpc_dir[] = {
{
- .ctl_name = CTL_UNNUMBERED,
- .procname = "hb",
- .mode = 0555,
- .child = xpc_sys_xpc_hb_dir
- },
+ .ctl_name = CTL_UNNUMBERED,
+ .procname = "hb",
+ .mode = 0555,
+ .child = xpc_sys_xpc_hb_dir},
{
- .ctl_name = CTL_UNNUMBERED,
- .procname = "disengage_request_timelimit",
- .data = &xpc_disengage_request_timelimit,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = &proc_dointvec_minmax,
- .strategy = &sysctl_intvec,
- .extra1 = &xpc_disengage_request_min_timelimit,
- .extra2 = &xpc_disengage_request_max_timelimit
- },
+ .ctl_name = CTL_UNNUMBERED,
+ .procname = "disengage_request_timelimit",
+ .data = &xpc_disengage_request_timelimit,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec_minmax,
+ .strategy = &sysctl_intvec,
+ .extra1 = &xpc_disengage_request_min_timelimit,
+ .extra2 = &xpc_disengage_request_max_timelimit},
{}
};
static ctl_table xpc_sys_dir[] = {
{
- .ctl_name = CTL_UNNUMBERED,
- .procname = "xpc",
- .mode = 0555,
- .child = xpc_sys_xpc_dir
- },
+ .ctl_name = CTL_UNNUMBERED,
+ .procname = "xpc",
+ .mode = 0555,
+ .child = xpc_sys_xpc_dir},
{}
};
static struct ctl_table_header *xpc_sysctl;
@@ -172,13 +161,10 @@
/* notification that the xpc_discovery thread has exited */
static DECLARE_COMPLETION(xpc_discovery_exited);
-
static struct timer_list xpc_hb_timer;
-
static void xpc_kthread_waitmsgs(struct xpc_partition *, struct xpc_channel *);
-
static int xpc_system_reboot(struct notifier_block *, unsigned long, void *);
static struct notifier_block xpc_reboot_notifier = {
.notifier_call = xpc_system_reboot,
@@ -189,25 +175,22 @@
.notifier_call = xpc_system_die,
};
-
/*
* Timer function to enforce the timelimit on the partition disengage request.
*/
static void
xpc_timeout_partition_disengage_request(unsigned long data)
{
- struct xpc_partition *part = (struct xpc_partition *) data;
-
+ struct xpc_partition *part = (struct xpc_partition *)data;
DBUG_ON(time_before(jiffies, part->disengage_request_timeout));
- (void) xpc_partition_disengaged(part);
+ (void)xpc_partition_disengaged(part);
DBUG_ON(part->disengage_request_timeout != 0);
DBUG_ON(xpc_partition_engaged(1UL << XPC_PARTID(part)) != 0);
}
-
/*
* Notify the heartbeat check thread that an IRQ has been received.
*/
@@ -219,7 +202,6 @@
return IRQ_HANDLED;
}
-
/*
* Timer to produce the heartbeat. The timer structures function is
* already set when this is initially called. A tunable is used to
@@ -230,15 +212,13 @@
{
xpc_vars->heartbeat++;
- if (time_after_eq(jiffies, xpc_hb_check_timeout)) {
+ if (time_after_eq(jiffies, xpc_hb_check_timeout))
wake_up_interruptible(&xpc_act_IRQ_wq);
- }
xpc_hb_timer.expires = jiffies + (xpc_hb_interval * HZ);
add_timer(&xpc_hb_timer);
}
-
/*
* This thread is responsible for nearly all of the partition
* activation/deactivation.
@@ -248,27 +228,23 @@
{
int last_IRQ_count = 0;
int new_IRQ_count;
- int force_IRQ=0;
-
+ int force_IRQ = 0;
/* this thread was marked active by xpc_hb_init() */
- daemonize(XPC_HB_CHECK_THREAD_NAME);
-
set_cpus_allowed(current, cpumask_of_cpu(XPC_HB_CHECK_CPU));
/* set our heartbeating to other partitions into motion */
xpc_hb_check_timeout = jiffies + (xpc_hb_check_interval * HZ);
xpc_hb_beater(0);
- while (!(volatile int) xpc_exiting) {
+ while (!xpc_exiting) {
dev_dbg(xpc_part, "woke up with %d ticks rem; %d IRQs have "
"been received\n",
- (int) (xpc_hb_check_timeout - jiffies),
+ (int)(xpc_hb_check_timeout - jiffies),
atomic_read(&xpc_act_IRQ_rcvd) - last_IRQ_count);
-
/* checking of remote heartbeats is skewed by IRQ handling */
if (time_after_eq(jiffies, xpc_hb_check_timeout)) {
dev_dbg(xpc_part, "checking remote heartbeats\n");
@@ -282,7 +258,6 @@
force_IRQ = 1;
}
-
/* check for outstanding IRQs */
new_IRQ_count = atomic_read(&xpc_act_IRQ_rcvd);
if (last_IRQ_count < new_IRQ_count || force_IRQ != 0) {
@@ -294,30 +269,30 @@
last_IRQ_count += xpc_identify_act_IRQ_sender();
if (last_IRQ_count < new_IRQ_count) {
/* retry once to help avoid missing AMO */
- (void) xpc_identify_act_IRQ_sender();
+ (void)xpc_identify_act_IRQ_sender();
}
last_IRQ_count = new_IRQ_count;
xpc_hb_check_timeout = jiffies +
- (xpc_hb_check_interval * HZ);
+ (xpc_hb_check_interval * HZ);
}
/* wait for IRQ or timeout */
- (void) wait_event_interruptible(xpc_act_IRQ_wq,
- (last_IRQ_count < atomic_read(&xpc_act_IRQ_rcvd) ||
- time_after_eq(jiffies, xpc_hb_check_timeout) ||
- (volatile int) xpc_exiting));
+ (void)wait_event_interruptible(xpc_act_IRQ_wq,
+ (last_IRQ_count <
+ atomic_read(&xpc_act_IRQ_rcvd)
+ || time_after_eq(jiffies,
+ xpc_hb_check_timeout) ||
+ xpc_exiting));
}
dev_dbg(xpc_part, "heartbeat checker is exiting\n");
-
/* mark this thread as having exited */
complete(&xpc_hb_checker_exited);
return 0;
}
-
/*
* This thread will attempt to discover other partitions to activate
* based on info provided by SAL. This new thread is short lived and
@@ -326,8 +301,6 @@
static int
xpc_initiate_discovery(void *ignore)
{
- daemonize(XPC_DISCOVERY_THREAD_NAME);
-
xpc_discovery();
dev_dbg(xpc_part, "discovery thread is exiting\n");
@@ -337,7 +310,6 @@
return 0;
}
-
/*
* Establish first contact with the remote partititon. This involves pulling
* the XPC per partition variables from the remote partition and waiting for
@@ -348,7 +320,6 @@
{
enum xpc_retval ret;
-
while ((ret = xpc_pull_remote_vars_part(part)) != xpcSuccess) {
if (ret != xpcRetry) {
XPC_DEACTIVATE_PARTITION(part, ret);
@@ -359,17 +330,15 @@
"partition %d\n", XPC_PARTID(part));
/* wait a 1/4 of a second or so */
- (void) msleep_interruptible(250);
+ (void)msleep_interruptible(250);
- if (part->act_state == XPC_P_DEACTIVATING) {
+ if (part->act_state == XPC_P_DEACTIVATING)
return part->reason;
- }
}
return xpc_mark_partition_active(part);
}
-
/*
* The first kthread assigned to a newly activated partition is the one
* created by XPC HB with which it calls xpc_partition_up(). XPC hangs on to
@@ -386,12 +355,11 @@
xpc_channel_mgr(struct xpc_partition *part)
{
while (part->act_state != XPC_P_DEACTIVATING ||
- atomic_read(&part->nchannels_active) > 0 ||
- !xpc_partition_disengaged(part)) {
+ atomic_read(&part->nchannels_active) > 0 ||
+ !xpc_partition_disengaged(part)) {
xpc_process_channel_activity(part);
-
/*
* Wait until we've been requested to activate kthreads or
* all of the channel's message queues have been torn down or
@@ -406,21 +374,16 @@
* wake him up.
*/
atomic_dec(&part->channel_mgr_requests);
- (void) wait_event_interruptible(part->channel_mgr_wq,
+ (void)wait_event_interruptible(part->channel_mgr_wq,
(atomic_read(&part->channel_mgr_requests) > 0 ||
- (volatile u64) part->local_IPI_amo != 0 ||
- ((volatile u8) part->act_state ==
- XPC_P_DEACTIVATING &&
- atomic_read(&part->nchannels_active) == 0 &&
- xpc_partition_disengaged(part))));
+ part->local_IPI_amo != 0 ||
+ (part->act_state == XPC_P_DEACTIVATING &&
+ atomic_read(&part->nchannels_active) == 0 &&
+ xpc_partition_disengaged(part))));
atomic_set(&part->channel_mgr_requests, 1);
-
- // >>> Does it need to wakeup periodically as well? In case we
- // >>> miscalculated the #of kthreads to wakeup or create?
}
}
-
/*
* When XPC HB determines that a partition has come up, it will create a new
* kthread and that kthread will call this function to attempt to set up the
@@ -443,9 +406,8 @@
dev_dbg(xpc_chan, "activating partition %d\n", XPC_PARTID(part));
- if (xpc_setup_infrastructure(part) != xpcSuccess) {
+ if (xpc_setup_infrastructure(part) != xpcSuccess)
return;
- }
/*
* The kthread that XPC HB called us with will become the
@@ -454,27 +416,22 @@
* has been dismantled.
*/
- (void) xpc_part_ref(part); /* this will always succeed */
+ (void)xpc_part_ref(part); /* this will always succeed */
- if (xpc_make_first_contact(part) == xpcSuccess) {
+ if (xpc_make_first_contact(part) == xpcSuccess)
xpc_channel_mgr(part);
- }
xpc_part_deref(part);
xpc_teardown_infrastructure(part);
}
-
static int
xpc_activating(void *__partid)
{
- partid_t partid = (u64) __partid;
+ partid_t partid = (u64)__partid;
struct xpc_partition *part = &xpc_partitions[partid];
unsigned long irq_flags;
- struct sched_param param = { .sched_priority = MAX_RT_PRIO - 1 };
- int ret;
-
DBUG_ON(partid <= 0 || partid >= XP_MAX_PARTITIONS);
@@ -496,21 +453,6 @@
dev_dbg(xpc_part, "bringing partition %d up\n", partid);
- daemonize("xpc%02d", partid);
-
- /*
- * This thread needs to run at a realtime priority to prevent a
- * significant performance degradation.
- */
- ret = sched_setscheduler(current, SCHED_FIFO, ¶m);
- if (ret != 0) {
- dev_warn(xpc_part, "unable to set pid %d to a realtime "
- "priority, ret=%d\n", current->pid, ret);
- }
-
- /* allow this thread and its children to run on any CPU */
- set_cpus_allowed(current, CPU_MASK_ALL);
-
/*
* Register the remote partition's AMOs with SAL so it can handle
* and cleanup errors within that address range should the remote
@@ -522,9 +464,9 @@
* reloads and system reboots.
*/
if (sn_register_xp_addr_region(part->remote_amos_page_pa,
- PAGE_SIZE, 1) < 0) {
+ PAGE_SIZE, 1) < 0) {
dev_warn(xpc_part, "xpc_partition_up(%d) failed to register "
- "xp_addr region\n", partid);
+ "xp_addr region\n", partid);
spin_lock_irqsave(&part->act_lock, irq_flags);
part->act_state = XPC_P_INACTIVE;
@@ -537,12 +479,11 @@
xpc_allow_hb(partid, xpc_vars);
xpc_IPI_send_activated(part);
-
/*
* xpc_partition_up() holds this thread and marks this partition as
* XPC_P_ACTIVE by calling xpc_hb_mark_active().
*/
- (void) xpc_partition_up(part);
+ (void)xpc_partition_up(part);
xpc_disallow_hb(partid, xpc_vars);
xpc_mark_partition_inactive(part);
@@ -555,14 +496,12 @@
return 0;
}
-
void
xpc_activate_partition(struct xpc_partition *part)
{
partid_t partid = XPC_PARTID(part);
unsigned long irq_flags;
- pid_t pid;
-
+ struct task_struct *kthread;
spin_lock_irqsave(&part->act_lock, irq_flags);
@@ -573,9 +512,9 @@
spin_unlock_irqrestore(&part->act_lock, irq_flags);
- pid = kernel_thread(xpc_activating, (void *) ((u64) partid), 0);
-
- if (unlikely(pid <= 0)) {
+ kthread = kthread_run(xpc_activating, (void *)((u64)partid), "xpc%02d",
+ partid);
+ if (IS_ERR(kthread)) {
spin_lock_irqsave(&part->act_lock, irq_flags);
part->act_state = XPC_P_INACTIVE;
XPC_SET_REASON(part, xpcCloneKThreadFailed, __LINE__);
@@ -583,12 +522,11 @@
}
}
-
/*
* Handle the receipt of a SGI_XPC_NOTIFY IRQ by seeing whether the specified
* partition actually sent it. Since SGI_XPC_NOTIFY IRQs may be shared by more
* than one partition, we use an AMO_t structure per partition to indicate
- * whether a partition has sent an IPI or not. >>> If it has, then wake up the
+ * whether a partition has sent an IPI or not. If it has, then wake up the
* associated kthread to handle it.
*
* All SGI_XPC_NOTIFY IRQs received by XPC are the result of IPIs sent by XPC
@@ -603,10 +541,9 @@
irqreturn_t
xpc_notify_IRQ_handler(int irq, void *dev_id)
{
- partid_t partid = (partid_t) (u64) dev_id;
+ partid_t partid = (partid_t) (u64)dev_id;
struct xpc_partition *part = &xpc_partitions[partid];
-
DBUG_ON(partid <= 0 || partid >= XP_MAX_PARTITIONS);
if (xpc_part_ref(part)) {
@@ -617,7 +554,6 @@
return IRQ_HANDLED;
}
-
/*
* Check to see if xpc_notify_IRQ_handler() dropped any IPIs on the floor
* because the write to their associated IPI amo completed after the IRQ/IPI
@@ -630,13 +566,12 @@
xpc_check_for_channel_activity(part);
part->dropped_IPI_timer.expires = jiffies +
- XPC_P_DROPPED_IPI_WAIT;
+ XPC_P_DROPPED_IPI_WAIT;
add_timer(&part->dropped_IPI_timer);
xpc_part_deref(part);
}
}
-
void
xpc_activate_kthreads(struct xpc_channel *ch, int needed)
{
@@ -644,7 +579,6 @@
int assigned = atomic_read(&ch->kthreads_assigned);
int wakeup;
-
DBUG_ON(needed <= 0);
if (idle > 0) {
@@ -658,16 +592,13 @@
wake_up_nr(&ch->idle_wq, wakeup);
}
- if (needed <= 0) {
+ if (needed <= 0)
return;
- }
if (needed + assigned > ch->kthreads_assigned_limit) {
needed = ch->kthreads_assigned_limit - assigned;
- // >>>should never be less than 0
- if (needed <= 0) {
+ if (needed <= 0)
return;
- }
}
dev_dbg(xpc_chan, "create %d new kthreads, partid=%d, channel=%d\n",
@@ -676,7 +607,6 @@
xpc_create_kthreads(ch, needed, 0);
}
-
/*
* This function is where XPC's kthreads wait for messages to deliver.
*/
@@ -686,15 +616,13 @@
do {
/* deliver messages to their intended recipients */
- while ((volatile s64) ch->w_local_GP.get <
- (volatile s64) ch->w_remote_GP.put &&
- !((volatile u32) ch->flags &
- XPC_C_DISCONNECTING)) {
+ while (ch->w_local_GP.get < ch->w_remote_GP.put &&
+ !(ch->flags & XPC_C_DISCONNECTING)) {
xpc_deliver_msg(ch);
}
if (atomic_inc_return(&ch->kthreads_idle) >
- ch->kthreads_idle_limit) {
+ ch->kthreads_idle_limit) {
/* too many idle kthreads on this channel */
atomic_dec(&ch->kthreads_idle);
break;
@@ -703,20 +631,17 @@
dev_dbg(xpc_chan, "idle kthread calling "
"wait_event_interruptible_exclusive()\n");
- (void) wait_event_interruptible_exclusive(ch->idle_wq,
- ((volatile s64) ch->w_local_GP.get <
- (volatile s64) ch->w_remote_GP.put ||
- ((volatile u32) ch->flags &
- XPC_C_DISCONNECTING)));
+ (void)wait_event_interruptible_exclusive(ch->idle_wq,
+ (ch->w_local_GP.get < ch->w_remote_GP.put ||
+ (ch->flags & XPC_C_DISCONNECTING)));
atomic_dec(&ch->kthreads_idle);
- } while (!((volatile u32) ch->flags & XPC_C_DISCONNECTING));
+ } while (!(ch->flags & XPC_C_DISCONNECTING));
}
-
static int
-xpc_daemonize_kthread(void *args)
+xpc_kthread_start(void *args)
{
partid_t partid = XPC_UNPACK_ARG1(args);
u16 ch_number = XPC_UNPACK_ARG2(args);
@@ -725,9 +650,6 @@
int n_needed;
unsigned long irq_flags;
-
- daemonize("xpc%02dc%d", partid, ch_number);
-
dev_dbg(xpc_chan, "kthread starting, partid=%d, channel=%d\n",
partid, ch_number);
@@ -756,10 +678,9 @@
* need one less than total #of messages to deliver.
*/
n_needed = ch->w_remote_GP.put - ch->w_local_GP.get - 1;
- if (n_needed > 0 &&
- !(ch->flags & XPC_C_DISCONNECTING)) {
+ if (n_needed > 0 && !(ch->flags & XPC_C_DISCONNECTING))
xpc_activate_kthreads(ch, n_needed);
- }
+
} else {
spin_unlock_irqrestore(&ch->lock, irq_flags);
}
@@ -771,7 +692,7 @@
spin_lock_irqsave(&ch->lock, irq_flags);
if ((ch->flags & XPC_C_CONNECTEDCALLOUT_MADE) &&
- !(ch->flags & XPC_C_DISCONNECTINGCALLOUT)) {
+ !(ch->flags & XPC_C_DISCONNECTINGCALLOUT)) {
ch->flags |= XPC_C_DISCONNECTINGCALLOUT;
spin_unlock_irqrestore(&ch->lock, irq_flags);
@@ -798,7 +719,6 @@
return 0;
}
-
/*
* For each partition that XPC has established communications with, there is
* a minimum of one kernel thread assigned to perform any operation that
@@ -813,13 +733,12 @@
*/
void
xpc_create_kthreads(struct xpc_channel *ch, int needed,
- int ignore_disconnecting)
+ int ignore_disconnecting)
{
unsigned long irq_flags;
- pid_t pid;
u64 args = XPC_PACK_ARGS(ch->partid, ch->number);
struct xpc_partition *part = &xpc_partitions[ch->partid];
-
+ struct task_struct *kthread;
while (needed-- > 0) {
@@ -832,7 +751,7 @@
if (!atomic_inc_not_zero(&ch->kthreads_assigned)) {
/* kthreads assigned had gone to zero */
BUG_ON(!(ch->flags &
- XPC_C_DISCONNECTINGCALLOUT_MADE));
+ XPC_C_DISCONNECTINGCALLOUT_MADE));
break;
}
@@ -843,11 +762,12 @@
if (atomic_inc_return(&part->nchannels_engaged) == 1)
xpc_mark_partition_engaged(part);
}
- (void) xpc_part_ref(part);
+ (void)xpc_part_ref(part);
xpc_msgqueue_ref(ch);
- pid = kernel_thread(xpc_daemonize_kthread, (void *) args, 0);
- if (pid < 0) {
+ kthread = kthread_run(xpc_kthread_start, (void *)args,
+ "xpc%02dc%d", ch->partid, ch->number);
+ if (IS_ERR(kthread)) {
/* the fork failed */
/*
@@ -857,7 +777,7 @@
* to this channel are blocked in the channel's
* registerer, because the only thing that will unblock
* them is the xpcDisconnecting callout that this
- * failed kernel_thread would have made.
+ * failed kthread_run() would have made.
*/
if (atomic_dec_return(&ch->kthreads_assigned) == 0 &&
@@ -869,7 +789,7 @@
xpc_part_deref(part);
if (atomic_read(&ch->kthreads_assigned) <
- ch->kthreads_idle_limit) {
+ ch->kthreads_idle_limit) {
/*
* Flag this as an error only if we have an
* insufficient #of kthreads for the channel
@@ -877,17 +797,14 @@
*/
spin_lock_irqsave(&ch->lock, irq_flags);
XPC_DISCONNECT_CHANNEL(ch, xpcLackOfResources,
- &irq_flags);
+ &irq_flags);
spin_unlock_irqrestore(&ch->lock, irq_flags);
}
break;
}
-
- ch->kthreads_created++; // >>> temporary debug only!!!
}
}
-
void
xpc_disconnect_wait(int ch_number)
{
@@ -897,14 +814,12 @@
struct xpc_channel *ch;
int wakeup_channel_mgr;
-
/* now wait for all callouts to the caller's function to cease */
for (partid = 1; partid < XP_MAX_PARTITIONS; partid++) {
part = &xpc_partitions[partid];
- if (!xpc_part_ref(part)) {
+ if (!xpc_part_ref(part))
continue;
- }
ch = &part->channels[ch_number];
@@ -923,7 +838,8 @@
if (part->act_state != XPC_P_DEACTIVATING) {
spin_lock(&part->IPI_lock);
XPC_SET_IPI_FLAGS(part->local_IPI_amo,
- ch->number, ch->delayed_IPI_flags);
+ ch->number,
+ ch->delayed_IPI_flags);
spin_unlock(&part->IPI_lock);
wakeup_channel_mgr = 1;
}
@@ -933,15 +849,13 @@
ch->flags &= ~XPC_C_WDISCONNECT;
spin_unlock_irqrestore(&ch->lock, irq_flags);
- if (wakeup_channel_mgr) {
+ if (wakeup_channel_mgr)
xpc_wakeup_channel_mgr(part);
- }
xpc_part_deref(part);
}
}
-
static void
xpc_do_exit(enum xpc_retval reason)
{
@@ -950,7 +864,6 @@
struct xpc_partition *part;
unsigned long printmsg_time, disengage_request_timeout = 0;
-
/* a 'rmmod XPC' and a 'reboot' cannot both end up here together */
DBUG_ON(xpc_exiting == 1);
@@ -971,10 +884,8 @@
/* wait for the heartbeat checker thread to exit */
wait_for_completion(&xpc_hb_checker_exited);
-
/* sleep for a 1/3 of a second or so */
- (void) msleep_interruptible(300);
-
+ (void)msleep_interruptible(300);
/* wait for all partitions to become inactive */
@@ -988,7 +899,7 @@
part = &xpc_partitions[partid];
if (xpc_partition_disengaged(part) &&
- part->act_state == XPC_P_INACTIVE) {
+ part->act_state == XPC_P_INACTIVE) {
continue;
}
@@ -997,47 +908,46 @@
XPC_DEACTIVATE_PARTITION(part, reason);
if (part->disengage_request_timeout >
- disengage_request_timeout) {
+ disengage_request_timeout) {
disengage_request_timeout =
- part->disengage_request_timeout;
+ part->disengage_request_timeout;
}
}
if (xpc_partition_engaged(-1UL)) {
if (time_after(jiffies, printmsg_time)) {
dev_info(xpc_part, "waiting for remote "
- "partitions to disengage, timeout in "
- "%ld seconds\n",
- (disengage_request_timeout - jiffies)
- / HZ);
+ "partitions to disengage, timeout in "
+ "%ld seconds\n",
+ (disengage_request_timeout - jiffies)
+ / HZ);
printmsg_time = jiffies +
- (XPC_DISENGAGE_PRINTMSG_INTERVAL * HZ);
+ (XPC_DISENGAGE_PRINTMSG_INTERVAL * HZ);
printed_waiting_msg = 1;
}
} else if (active_part_count > 0) {
if (printed_waiting_msg) {
dev_info(xpc_part, "waiting for local partition"
- " to disengage\n");
+ " to disengage\n");
printed_waiting_msg = 0;
}
} else {
if (!xpc_disengage_request_timedout) {
dev_info(xpc_part, "all partitions have "
- "disengaged\n");
+ "disengaged\n");
}
break;
}
/* sleep for a 1/3 of a second or so */
- (void) msleep_interruptible(300);
+ (void)msleep_interruptible(300);
} while (1);
DBUG_ON(xpc_partition_engaged(-1UL));
-
/* indicate to others that our reserved page is uninitialized */
xpc_rsvd_page->vars_pa = 0;
@@ -1047,27 +957,24 @@
if (reason == xpcUnloading) {
/* take ourselves off of the reboot_notifier_list */
- (void) unregister_reboot_notifier(&xpc_reboot_notifier);
+ (void)unregister_reboot_notifier(&xpc_reboot_notifier);
/* take ourselves off of the die_notifier list */
- (void) unregister_die_notifier(&xpc_die_notifier);
+ (void)unregister_die_notifier(&xpc_die_notifier);
}
/* close down protections for IPI operations */
xpc_restrict_IPI_ops();
-
/* clear the interface to XPC's functions */
xpc_clear_interface();
- if (xpc_sysctl) {
+ if (xpc_sysctl)
unregister_sysctl_table(xpc_sysctl);
- }
kfree(xpc_remote_copy_buffer_base);
}
-
/*
* This function is called when the system is being rebooted.
*/
@@ -1076,7 +983,6 @@
{
enum xpc_retval reason;
-
switch (event) {
case SYS_RESTART:
reason = xpcSystemReboot;
@@ -1095,7 +1001,6 @@
return NOTIFY_DONE;
}
-
/*
* Notify other partitions to disengage from all references to our memory.
*/
@@ -1107,17 +1012,16 @@
unsigned long engaged;
long time, printmsg_time, disengage_request_timeout;
-
/* keep xpc_hb_checker thread from doing anything (just in case) */
xpc_exiting = 1;
- xpc_vars->heartbeating_to_mask = 0; /* indicate we're deactivated */
+ xpc_vars->heartbeating_to_mask = 0; /* indicate we're deactivated */
for (partid = 1; partid < XP_MAX_PARTITIONS; partid++) {
part = &xpc_partitions[partid];
if (!XPC_SUPPORTS_DISENGAGE_REQUEST(part->
- remote_vars_version)) {
+ remote_vars_version)) {
/* just in case it was left set by an earlier XPC */
xpc_clear_partition_engaged(1UL << partid);
@@ -1125,7 +1029,7 @@
}
if (xpc_partition_engaged(1UL << partid) ||
- part->act_state != XPC_P_INACTIVE) {
+ part->act_state != XPC_P_INACTIVE) {
xpc_request_partition_disengage(part);
xpc_mark_partition_disengaged(part);
xpc_IPI_send_disengage(part);
@@ -1134,9 +1038,9 @@
time = rtc_time();
printmsg_time = time +
- (XPC_DISENGAGE_PRINTMSG_INTERVAL * sn_rtc_cycles_per_second);
+ (XPC_DISENGAGE_PRINTMSG_INTERVAL * sn_rtc_cycles_per_second);
disengage_request_timeout = time +
- (xpc_disengage_request_timelimit * sn_rtc_cycles_per_second);
+ (xpc_disengage_request_timelimit * sn_rtc_cycles_per_second);
/* wait for all other partitions to disengage from us */
@@ -1152,8 +1056,8 @@
for (partid = 1; partid < XP_MAX_PARTITIONS; partid++) {
if (engaged & (1UL << partid)) {
dev_info(xpc_part, "disengage from "
- "remote partition %d timed "
- "out\n", partid);
+ "remote partition %d timed "
+ "out\n", partid);
}
}
break;
@@ -1161,17 +1065,16 @@
if (time >= printmsg_time) {
dev_info(xpc_part, "waiting for remote partitions to "
- "disengage, timeout in %ld seconds\n",
- (disengage_request_timeout - time) /
- sn_rtc_cycles_per_second);
+ "disengage, timeout in %ld seconds\n",
+ (disengage_request_timeout - time) /
+ sn_rtc_cycles_per_second);
printmsg_time = time +
- (XPC_DISENGAGE_PRINTMSG_INTERVAL *
- sn_rtc_cycles_per_second);
+ (XPC_DISENGAGE_PRINTMSG_INTERVAL *
+ sn_rtc_cycles_per_second);
}
}
}
-
/*
* This function is called when the system is being restarted or halted due
* to some sort of system failure. If this is the case we need to notify the
@@ -1191,9 +1094,9 @@
case DIE_KDEBUG_ENTER:
/* Should lack of heartbeat be ignored by other partitions? */
- if (!xpc_kdebug_ignore) {
+ if (!xpc_kdebug_ignore)
break;
- }
+
/* fall through */
case DIE_MCA_MONARCH_ENTER:
case DIE_INIT_MONARCH_ENTER:
@@ -1203,9 +1106,9 @@
case DIE_KDEBUG_LEAVE:
/* Is lack of heartbeat being ignored by other partitions? */
- if (!xpc_kdebug_ignore) {
+ if (!xpc_kdebug_ignore)
break;
- }
+
/* fall through */
case DIE_MCA_MONARCH_LEAVE:
case DIE_INIT_MONARCH_LEAVE:
@@ -1217,26 +1120,23 @@
return NOTIFY_DONE;
}
-
int __init
xpc_init(void)
{
int ret;
partid_t partid;
struct xpc_partition *part;
- pid_t pid;
+ struct task_struct *kthread;
size_t buf_size;
-
- if (!ia64_platform_is("sn2")) {
+ if (!ia64_platform_is("sn2"))
return -ENODEV;
- }
-
buf_size = max(XPC_RP_VARS_SIZE,
- XPC_RP_HEADER_SIZE + XP_NASID_MASK_BYTES);
+ XPC_RP_HEADER_SIZE + XP_NASID_MASK_BYTES);
xpc_remote_copy_buffer = xpc_kmalloc_cacheline_aligned(buf_size,
- GFP_KERNEL, &xpc_remote_copy_buffer_base);
+ GFP_KERNEL,
+ &xpc_remote_copy_buffer_base);
if (xpc_remote_copy_buffer == NULL)
return -ENOMEM;
@@ -1256,7 +1156,7 @@
for (partid = 1; partid < XP_MAX_PARTITIONS; partid++) {
part = &xpc_partitions[partid];
- DBUG_ON((u64) part != L1_CACHE_ALIGN((u64) part));
+ DBUG_ON((u64)part != L1_CACHE_ALIGN((u64)part));
part->act_IRQ_rcvd = 0;
spin_lock_init(&part->act_lock);
@@ -1265,8 +1165,8 @@
init_timer(&part->disengage_request_timer);
part->disengage_request_timer.function =
- xpc_timeout_partition_disengage_request;
- part->disengage_request_timer.data = (unsigned long) part;
+ xpc_timeout_partition_disengage_request;
+ part->disengage_request_timer.data = (unsigned long)part;
part->setup_state = XPC_P_UNSET;
init_waitqueue_head(&part->teardown_wq);
@@ -1292,16 +1192,15 @@
* but rather immediately process the interrupt.
*/
ret = request_irq(SGI_XPC_ACTIVATE, xpc_act_IRQ_handler, 0,
- "xpc hb", NULL);
+ "xpc hb", NULL);
if (ret != 0) {
dev_err(xpc_part, "can't register ACTIVATE IRQ handler, "
"errno=%d\n", -ret);
xpc_restrict_IPI_ops();
- if (xpc_sysctl) {
+ if (xpc_sysctl)
unregister_sysctl_table(xpc_sysctl);
- }
kfree(xpc_remote_copy_buffer_base);
return -EBUSY;
@@ -1319,26 +1218,22 @@
free_irq(SGI_XPC_ACTIVATE, NULL);
xpc_restrict_IPI_ops();
- if (xpc_sysctl) {
+ if (xpc_sysctl)
unregister_sysctl_table(xpc_sysctl);
- }
kfree(xpc_remote_copy_buffer_base);
return -EBUSY;
}
-
/* add ourselves to the reboot_notifier_list */
ret = register_reboot_notifier(&xpc_reboot_notifier);
- if (ret != 0) {
+ if (ret != 0)
dev_warn(xpc_part, "can't register reboot notifier\n");
- }
/* add ourselves to the die_notifier list */
ret = register_die_notifier(&xpc_die_notifier);
- if (ret != 0) {
+ if (ret != 0)
dev_warn(xpc_part, "can't register die notifier\n");
- }
init_timer(&xpc_hb_timer);
xpc_hb_timer.function = xpc_hb_beater;
@@ -1347,39 +1242,38 @@
* The real work-horse behind xpc. This processes incoming
* interrupts and monitors remote heartbeats.
*/
- pid = kernel_thread(xpc_hb_checker, NULL, 0);
- if (pid < 0) {
+ kthread = kthread_run(xpc_hb_checker, NULL, XPC_HB_CHECK_THREAD_NAME);
+ if (IS_ERR(kthread)) {
dev_err(xpc_part, "failed while forking hb check thread\n");
/* indicate to others that our reserved page is uninitialized */
xpc_rsvd_page->vars_pa = 0;
/* take ourselves off of the reboot_notifier_list */
- (void) unregister_reboot_notifier(&xpc_reboot_notifier);
+ (void)unregister_reboot_notifier(&xpc_reboot_notifier);
/* take ourselves off of the die_notifier list */
- (void) unregister_die_notifier(&xpc_die_notifier);
+ (void)unregister_die_notifier(&xpc_die_notifier);
del_timer_sync(&xpc_hb_timer);
free_irq(SGI_XPC_ACTIVATE, NULL);
xpc_restrict_IPI_ops();
- if (xpc_sysctl) {
+ if (xpc_sysctl)
unregister_sysctl_table(xpc_sysctl);
- }
kfree(xpc_remote_copy_buffer_base);
return -EBUSY;
}
-
/*
* Startup a thread that will attempt to discover other partitions to
* activate based on info provided by SAL. This new thread is short
* lived and will exit once discovery is complete.
*/
- pid = kernel_thread(xpc_initiate_discovery, NULL, 0);
- if (pid < 0) {
+ kthread = kthread_run(xpc_initiate_discovery, NULL,
+ XPC_DISCOVERY_THREAD_NAME);
+ if (IS_ERR(kthread)) {
dev_err(xpc_part, "failed while forking discovery thread\n");
/* mark this new thread as a non-starter */
@@ -1389,7 +1283,6 @@
return -EBUSY;
}
-
/* set the interface to point at XPC's functions */
xpc_set_interface(xpc_initiate_connect, xpc_initiate_disconnect,
xpc_initiate_allocate, xpc_initiate_send,
@@ -1398,16 +1291,16 @@
return 0;
}
-module_init(xpc_init);
+module_init(xpc_init);
void __exit
xpc_exit(void)
{
xpc_do_exit(xpcUnloading);
}
-module_exit(xpc_exit);
+module_exit(xpc_exit);
MODULE_AUTHOR("Silicon Graphics, Inc.");
MODULE_DESCRIPTION("Cross Partition Communication (XPC) support");
@@ -1415,17 +1308,16 @@
module_param(xpc_hb_interval, int, 0);
MODULE_PARM_DESC(xpc_hb_interval, "Number of seconds between "
- "heartbeat increments.");
+ "heartbeat increments.");
module_param(xpc_hb_check_interval, int, 0);
MODULE_PARM_DESC(xpc_hb_check_interval, "Number of seconds between "
- "heartbeat checks.");
+ "heartbeat checks.");
module_param(xpc_disengage_request_timelimit, int, 0);
MODULE_PARM_DESC(xpc_disengage_request_timelimit, "Number of seconds to wait "
- "for disengage request to complete.");
+ "for disengage request to complete.");
module_param(xpc_kdebug_ignore, int, 0);
MODULE_PARM_DESC(xpc_kdebug_ignore, "Should lack of heartbeat be ignored by "
- "other partitions when dropping into kdebug.");
-
+ "other partitions when dropping into kdebug.");
diff --git a/arch/ia64/sn/kernel/xpc_partition.c b/drivers/misc/sgi-xp/xpc_partition.c
similarity index 79%
rename from arch/ia64/sn/kernel/xpc_partition.c
rename to drivers/misc/sgi-xp/xpc_partition.c
index 9e97c26..27e200e 100644
--- a/arch/ia64/sn/kernel/xpc_partition.c
+++ b/drivers/misc/sgi-xp/xpc_partition.c
@@ -3,10 +3,9 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (c) 2004-2006 Silicon Graphics, Inc. All Rights Reserved.
+ * Copyright (c) 2004-2008 Silicon Graphics, Inc. All Rights Reserved.
*/
-
/*
* Cross Partition Communication (XPC) partition support.
*
@@ -16,7 +15,6 @@
*
*/
-
#include <linux/kernel.h>
#include <linux/sysctl.h>
#include <linux/cache.h>
@@ -28,13 +26,11 @@
#include <asm/sn/sn_sal.h>
#include <asm/sn/nodepda.h>
#include <asm/sn/addrs.h>
-#include <asm/sn/xpc.h>
-
+#include "xpc.h"
/* XPC is exiting flag */
int xpc_exiting;
-
/* SH_IPI_ACCESS shub register value on startup */
static u64 xpc_sh1_IPI_access;
static u64 xpc_sh2_IPI_access0;
@@ -42,11 +38,9 @@
static u64 xpc_sh2_IPI_access2;
static u64 xpc_sh2_IPI_access3;
-
/* original protection values for each node */
u64 xpc_prot_vec[MAX_NUMNODES];
-
/* this partition's reserved page pointers */
struct xpc_rsvd_page *xpc_rsvd_page;
static u64 *xpc_part_nasids;
@@ -57,7 +51,6 @@
static int xp_nasid_mask_bytes; /* actual size in bytes of nasid mask */
static int xp_nasid_mask_words; /* actual size in words of nasid mask */
-
/*
* For performance reasons, each entry of xpc_partitions[] is cacheline
* aligned. And xpc_partitions[] is padded with an additional entry at the
@@ -66,7 +59,6 @@
*/
struct xpc_partition xpc_partitions[XP_MAX_PARTITIONS + 1];
-
/*
* Generic buffer used to store a local copy of portions of a remote
* partition's reserved page (either its header and part_nasids mask,
@@ -75,7 +67,6 @@
char *xpc_remote_copy_buffer;
void *xpc_remote_copy_buffer_base;
-
/*
* Guarantee that the kmalloc'd memory is cacheline aligned.
*/
@@ -84,22 +75,21 @@
{
/* see if kmalloc will give us cachline aligned memory by default */
*base = kmalloc(size, flags);
- if (*base == NULL) {
+ if (*base == NULL)
return NULL;
- }
- if ((u64) *base == L1_CACHE_ALIGN((u64) *base)) {
+
+ if ((u64)*base == L1_CACHE_ALIGN((u64)*base))
return *base;
- }
+
kfree(*base);
/* nope, we'll have to do it ourselves */
*base = kmalloc(size + L1_CACHE_BYTES, flags);
- if (*base == NULL) {
+ if (*base == NULL)
return NULL;
- }
- return (void *) L1_CACHE_ALIGN((u64) *base);
-}
+ return (void *)L1_CACHE_ALIGN((u64)*base);
+}
/*
* Given a nasid, get the physical address of the partition's reserved page
@@ -117,25 +107,24 @@
u64 buf_len = 0;
void *buf_base = NULL;
-
while (1) {
status = sn_partition_reserved_page_pa(buf, &cookie, &rp_pa,
- &len);
+ &len);
dev_dbg(xpc_part, "SAL returned with status=%li, cookie="
"0x%016lx, address=0x%016lx, len=0x%016lx\n",
status, cookie, rp_pa, len);
- if (status != SALRET_MORE_PASSES) {
+ if (status != SALRET_MORE_PASSES)
break;
- }
if (L1_CACHE_ALIGN(len) > buf_len) {
kfree(buf_base);
buf_len = L1_CACHE_ALIGN(len);
- buf = (u64) xpc_kmalloc_cacheline_aligned(buf_len,
- GFP_KERNEL, &buf_base);
+ buf = (u64)xpc_kmalloc_cacheline_aligned(buf_len,
+ GFP_KERNEL,
+ &buf_base);
if (buf_base == NULL) {
dev_err(xpc_part, "unable to kmalloc "
"len=0x%016lx\n", buf_len);
@@ -145,7 +134,7 @@
}
bte_res = xp_bte_copy(rp_pa, buf, buf_len,
- (BTE_NOTIFY | BTE_WACQUIRE), NULL);
+ (BTE_NOTIFY | BTE_WACQUIRE), NULL);
if (bte_res != BTE_SUCCESS) {
dev_dbg(xpc_part, "xp_bte_copy failed %i\n", bte_res);
status = SALRET_ERROR;
@@ -155,14 +144,13 @@
kfree(buf_base);
- if (status != SALRET_OK) {
+ if (status != SALRET_OK)
rp_pa = 0;
- }
+
dev_dbg(xpc_part, "reserved page at phys address 0x%016lx\n", rp_pa);
return rp_pa;
}
-
/*
* Fill the partition reserved page with the information needed by
* other partitions to discover we are alive and establish initial
@@ -176,7 +164,6 @@
u64 rp_pa, nasid_array = 0;
int i, ret;
-
/* get the local reserved page's address */
preempt_disable();
@@ -186,7 +173,7 @@
dev_err(xpc_part, "SAL failed to locate the reserved page\n");
return NULL;
}
- rp = (struct xpc_rsvd_page *) __va(rp_pa);
+ rp = (struct xpc_rsvd_page *)__va(rp_pa);
if (rp->partid != sn_partition_id) {
dev_err(xpc_part, "the reserved page's partid of %d should be "
@@ -222,8 +209,9 @@
* on subsequent loads of XPC. This AMO page is never freed, and its
* memory protections are never restricted.
*/
- if ((amos_page = xpc_vars->amos_page) == NULL) {
- amos_page = (AMO_t *) TO_AMO(uncached_alloc_page(0));
+ amos_page = xpc_vars->amos_page;
+ if (amos_page == NULL) {
+ amos_page = (AMO_t *)TO_AMO(uncached_alloc_page(0));
if (amos_page == NULL) {
dev_err(xpc_part, "can't allocate page of AMOs\n");
return NULL;
@@ -234,30 +222,31 @@
* when xpc_allow_IPI_ops() is called via xpc_hb_init().
*/
if (!enable_shub_wars_1_1()) {
- ret = sn_change_memprotect(ia64_tpa((u64) amos_page),
- PAGE_SIZE, SN_MEMPROT_ACCESS_CLASS_1,
- &nasid_array);
+ ret = sn_change_memprotect(ia64_tpa((u64)amos_page),
+ PAGE_SIZE,
+ SN_MEMPROT_ACCESS_CLASS_1,
+ &nasid_array);
if (ret != 0) {
dev_err(xpc_part, "can't change memory "
"protections\n");
uncached_free_page(__IA64_UNCACHED_OFFSET |
- TO_PHYS((u64) amos_page));
+ TO_PHYS((u64)amos_page));
return NULL;
}
}
- } else if (!IS_AMO_ADDRESS((u64) amos_page)) {
+ } else if (!IS_AMO_ADDRESS((u64)amos_page)) {
/*
* EFI's XPBOOT can also set amos_page in the reserved page,
* but it happens to leave it as an uncached physical address
* and we need it to be an uncached virtual, so we'll have to
* convert it.
*/
- if (!IS_AMO_PHYS_ADDRESS((u64) amos_page)) {
+ if (!IS_AMO_PHYS_ADDRESS((u64)amos_page)) {
dev_err(xpc_part, "previously used amos_page address "
- "is bad = 0x%p\n", (void *) amos_page);
+ "is bad = 0x%p\n", (void *)amos_page);
return NULL;
}
- amos_page = (AMO_t *) TO_AMO((u64) amos_page);
+ amos_page = (AMO_t *)TO_AMO((u64)amos_page);
}
/* clear xpc_vars */
@@ -267,22 +256,20 @@
xpc_vars->act_nasid = cpuid_to_nasid(0);
xpc_vars->act_phys_cpuid = cpu_physical_id(0);
xpc_vars->vars_part_pa = __pa(xpc_vars_part);
- xpc_vars->amos_page_pa = ia64_tpa((u64) amos_page);
- xpc_vars->amos_page = amos_page; /* save for next load of XPC */
-
+ xpc_vars->amos_page_pa = ia64_tpa((u64)amos_page);
+ xpc_vars->amos_page = amos_page; /* save for next load of XPC */
/* clear xpc_vars_part */
- memset((u64 *) xpc_vars_part, 0, sizeof(struct xpc_vars_part) *
- XP_MAX_PARTITIONS);
+ memset((u64 *)xpc_vars_part, 0, sizeof(struct xpc_vars_part) *
+ XP_MAX_PARTITIONS);
/* initialize the activate IRQ related AMO variables */
- for (i = 0; i < xp_nasid_mask_words; i++) {
- (void) xpc_IPI_init(XPC_ACTIVATE_IRQ_AMOS + i);
- }
+ for (i = 0; i < xp_nasid_mask_words; i++)
+ (void)xpc_IPI_init(XPC_ACTIVATE_IRQ_AMOS + i);
/* initialize the engaged remote partitions related AMO variables */
- (void) xpc_IPI_init(XPC_ENGAGED_PARTITIONS_AMO);
- (void) xpc_IPI_init(XPC_DISENGAGE_REQUEST_AMO);
+ (void)xpc_IPI_init(XPC_ENGAGED_PARTITIONS_AMO);
+ (void)xpc_IPI_init(XPC_DISENGAGE_REQUEST_AMO);
/* timestamp of when reserved page was setup by XPC */
rp->stamp = CURRENT_TIME;
@@ -296,7 +283,6 @@
return rp;
}
-
/*
* Change protections to allow IPI operations (and AMO operations on
* Shub 1.1 systems).
@@ -307,39 +293,38 @@
int node;
int nasid;
-
- // >>> Change SH_IPI_ACCESS code to use SAL call once it is available.
+ /* >>> Change SH_IPI_ACCESS code to use SAL call once it is available */
if (is_shub2()) {
xpc_sh2_IPI_access0 =
- (u64) HUB_L((u64 *) LOCAL_MMR_ADDR(SH2_IPI_ACCESS0));
+ (u64)HUB_L((u64 *)LOCAL_MMR_ADDR(SH2_IPI_ACCESS0));
xpc_sh2_IPI_access1 =
- (u64) HUB_L((u64 *) LOCAL_MMR_ADDR(SH2_IPI_ACCESS1));
+ (u64)HUB_L((u64 *)LOCAL_MMR_ADDR(SH2_IPI_ACCESS1));
xpc_sh2_IPI_access2 =
- (u64) HUB_L((u64 *) LOCAL_MMR_ADDR(SH2_IPI_ACCESS2));
+ (u64)HUB_L((u64 *)LOCAL_MMR_ADDR(SH2_IPI_ACCESS2));
xpc_sh2_IPI_access3 =
- (u64) HUB_L((u64 *) LOCAL_MMR_ADDR(SH2_IPI_ACCESS3));
+ (u64)HUB_L((u64 *)LOCAL_MMR_ADDR(SH2_IPI_ACCESS3));
for_each_online_node(node) {
nasid = cnodeid_to_nasid(node);
- HUB_S((u64 *) GLOBAL_MMR_ADDR(nasid, SH2_IPI_ACCESS0),
- -1UL);
- HUB_S((u64 *) GLOBAL_MMR_ADDR(nasid, SH2_IPI_ACCESS1),
- -1UL);
- HUB_S((u64 *) GLOBAL_MMR_ADDR(nasid, SH2_IPI_ACCESS2),
- -1UL);
- HUB_S((u64 *) GLOBAL_MMR_ADDR(nasid, SH2_IPI_ACCESS3),
- -1UL);
+ HUB_S((u64 *)GLOBAL_MMR_ADDR(nasid, SH2_IPI_ACCESS0),
+ -1UL);
+ HUB_S((u64 *)GLOBAL_MMR_ADDR(nasid, SH2_IPI_ACCESS1),
+ -1UL);
+ HUB_S((u64 *)GLOBAL_MMR_ADDR(nasid, SH2_IPI_ACCESS2),
+ -1UL);
+ HUB_S((u64 *)GLOBAL_MMR_ADDR(nasid, SH2_IPI_ACCESS3),
+ -1UL);
}
} else {
xpc_sh1_IPI_access =
- (u64) HUB_L((u64 *) LOCAL_MMR_ADDR(SH1_IPI_ACCESS));
+ (u64)HUB_L((u64 *)LOCAL_MMR_ADDR(SH1_IPI_ACCESS));
for_each_online_node(node) {
nasid = cnodeid_to_nasid(node);
- HUB_S((u64 *) GLOBAL_MMR_ADDR(nasid, SH1_IPI_ACCESS),
- -1UL);
+ HUB_S((u64 *)GLOBAL_MMR_ADDR(nasid, SH1_IPI_ACCESS),
+ -1UL);
/*
* Since the BIST collides with memory operations on
@@ -347,21 +332,23 @@
*/
if (enable_shub_wars_1_1()) {
/* open up everything */
- xpc_prot_vec[node] = (u64) HUB_L((u64 *)
- GLOBAL_MMR_ADDR(nasid,
- SH1_MD_DQLP_MMR_DIR_PRIVEC0));
- HUB_S((u64 *) GLOBAL_MMR_ADDR(nasid,
- SH1_MD_DQLP_MMR_DIR_PRIVEC0),
- -1UL);
- HUB_S((u64 *) GLOBAL_MMR_ADDR(nasid,
- SH1_MD_DQRP_MMR_DIR_PRIVEC0),
- -1UL);
+ xpc_prot_vec[node] = (u64)HUB_L((u64 *)
+ GLOBAL_MMR_ADDR
+ (nasid,
+ SH1_MD_DQLP_MMR_DIR_PRIVEC0));
+ HUB_S((u64 *)
+ GLOBAL_MMR_ADDR(nasid,
+ SH1_MD_DQLP_MMR_DIR_PRIVEC0),
+ -1UL);
+ HUB_S((u64 *)
+ GLOBAL_MMR_ADDR(nasid,
+ SH1_MD_DQRP_MMR_DIR_PRIVEC0),
+ -1UL);
}
}
}
}
-
/*
* Restrict protections to disallow IPI operations (and AMO operations on
* Shub 1.1 systems).
@@ -372,43 +359,41 @@
int node;
int nasid;
-
- // >>> Change SH_IPI_ACCESS code to use SAL call once it is available.
+ /* >>> Change SH_IPI_ACCESS code to use SAL call once it is available */
if (is_shub2()) {
for_each_online_node(node) {
nasid = cnodeid_to_nasid(node);
- HUB_S((u64 *) GLOBAL_MMR_ADDR(nasid, SH2_IPI_ACCESS0),
- xpc_sh2_IPI_access0);
- HUB_S((u64 *) GLOBAL_MMR_ADDR(nasid, SH2_IPI_ACCESS1),
- xpc_sh2_IPI_access1);
- HUB_S((u64 *) GLOBAL_MMR_ADDR(nasid, SH2_IPI_ACCESS2),
- xpc_sh2_IPI_access2);
- HUB_S((u64 *) GLOBAL_MMR_ADDR(nasid, SH2_IPI_ACCESS3),
- xpc_sh2_IPI_access3);
+ HUB_S((u64 *)GLOBAL_MMR_ADDR(nasid, SH2_IPI_ACCESS0),
+ xpc_sh2_IPI_access0);
+ HUB_S((u64 *)GLOBAL_MMR_ADDR(nasid, SH2_IPI_ACCESS1),
+ xpc_sh2_IPI_access1);
+ HUB_S((u64 *)GLOBAL_MMR_ADDR(nasid, SH2_IPI_ACCESS2),
+ xpc_sh2_IPI_access2);
+ HUB_S((u64 *)GLOBAL_MMR_ADDR(nasid, SH2_IPI_ACCESS3),
+ xpc_sh2_IPI_access3);
}
} else {
for_each_online_node(node) {
nasid = cnodeid_to_nasid(node);
- HUB_S((u64 *) GLOBAL_MMR_ADDR(nasid, SH1_IPI_ACCESS),
- xpc_sh1_IPI_access);
+ HUB_S((u64 *)GLOBAL_MMR_ADDR(nasid, SH1_IPI_ACCESS),
+ xpc_sh1_IPI_access);
if (enable_shub_wars_1_1()) {
- HUB_S((u64 *) GLOBAL_MMR_ADDR(nasid,
- SH1_MD_DQLP_MMR_DIR_PRIVEC0),
- xpc_prot_vec[node]);
- HUB_S((u64 *) GLOBAL_MMR_ADDR(nasid,
- SH1_MD_DQRP_MMR_DIR_PRIVEC0),
- xpc_prot_vec[node]);
+ HUB_S((u64 *)GLOBAL_MMR_ADDR(nasid,
+ SH1_MD_DQLP_MMR_DIR_PRIVEC0),
+ xpc_prot_vec[node]);
+ HUB_S((u64 *)GLOBAL_MMR_ADDR(nasid,
+ SH1_MD_DQRP_MMR_DIR_PRIVEC0),
+ xpc_prot_vec[node]);
}
}
}
}
-
/*
* At periodic intervals, scan through all active partitions and ensure
* their heartbeat is still active. If not, the partition is deactivated.
@@ -421,34 +406,31 @@
partid_t partid;
bte_result_t bres;
-
- remote_vars = (struct xpc_vars *) xpc_remote_copy_buffer;
+ remote_vars = (struct xpc_vars *)xpc_remote_copy_buffer;
for (partid = 1; partid < XP_MAX_PARTITIONS; partid++) {
- if (xpc_exiting) {
+ if (xpc_exiting)
break;
- }
- if (partid == sn_partition_id) {
+ if (partid == sn_partition_id)
continue;
- }
part = &xpc_partitions[partid];
if (part->act_state == XPC_P_INACTIVE ||
- part->act_state == XPC_P_DEACTIVATING) {
+ part->act_state == XPC_P_DEACTIVATING) {
continue;
}
/* pull the remote_hb cache line */
bres = xp_bte_copy(part->remote_vars_pa,
- (u64) remote_vars,
- XPC_RP_VARS_SIZE,
- (BTE_NOTIFY | BTE_WACQUIRE), NULL);
+ (u64)remote_vars,
+ XPC_RP_VARS_SIZE,
+ (BTE_NOTIFY | BTE_WACQUIRE), NULL);
if (bres != BTE_SUCCESS) {
XPC_DEACTIVATE_PARTITION(part,
- xpc_map_bte_errors(bres));
+ xpc_map_bte_errors(bres));
continue;
}
@@ -459,8 +441,8 @@
remote_vars->heartbeating_to_mask);
if (((remote_vars->heartbeat == part->last_heartbeat) &&
- (remote_vars->heartbeat_offline == 0)) ||
- !xpc_hb_allowed(sn_partition_id, remote_vars)) {
+ (remote_vars->heartbeat_offline == 0)) ||
+ !xpc_hb_allowed(sn_partition_id, remote_vars)) {
XPC_DEACTIVATE_PARTITION(part, xpcNoHeartbeat);
continue;
@@ -470,7 +452,6 @@
}
}
-
/*
* Get a copy of a portion of the remote partition's rsvd page.
*
@@ -480,59 +461,48 @@
*/
static enum xpc_retval
xpc_get_remote_rp(int nasid, u64 *discovered_nasids,
- struct xpc_rsvd_page *remote_rp, u64 *remote_rp_pa)
+ struct xpc_rsvd_page *remote_rp, u64 *remote_rp_pa)
{
int bres, i;
-
/* get the reserved page's physical address */
*remote_rp_pa = xpc_get_rsvd_page_pa(nasid);
- if (*remote_rp_pa == 0) {
+ if (*remote_rp_pa == 0)
return xpcNoRsvdPageAddr;
- }
-
/* pull over the reserved page header and part_nasids mask */
- bres = xp_bte_copy(*remote_rp_pa, (u64) remote_rp,
- XPC_RP_HEADER_SIZE + xp_nasid_mask_bytes,
- (BTE_NOTIFY | BTE_WACQUIRE), NULL);
- if (bres != BTE_SUCCESS) {
+ bres = xp_bte_copy(*remote_rp_pa, (u64)remote_rp,
+ XPC_RP_HEADER_SIZE + xp_nasid_mask_bytes,
+ (BTE_NOTIFY | BTE_WACQUIRE), NULL);
+ if (bres != BTE_SUCCESS)
return xpc_map_bte_errors(bres);
- }
-
if (discovered_nasids != NULL) {
u64 *remote_part_nasids = XPC_RP_PART_NASIDS(remote_rp);
-
- for (i = 0; i < xp_nasid_mask_words; i++) {
+ for (i = 0; i < xp_nasid_mask_words; i++)
discovered_nasids[i] |= remote_part_nasids[i];
- }
}
-
/* check that the partid is for another partition */
if (remote_rp->partid < 1 ||
- remote_rp->partid > (XP_MAX_PARTITIONS - 1)) {
+ remote_rp->partid > (XP_MAX_PARTITIONS - 1)) {
return xpcInvalidPartid;
}
- if (remote_rp->partid == sn_partition_id) {
+ if (remote_rp->partid == sn_partition_id)
return xpcLocalPartid;
- }
-
if (XPC_VERSION_MAJOR(remote_rp->version) !=
- XPC_VERSION_MAJOR(XPC_RP_VERSION)) {
+ XPC_VERSION_MAJOR(XPC_RP_VERSION)) {
return xpcBadVersion;
}
return xpcSuccess;
}
-
/*
* Get a copy of the remote partition's XPC variables from the reserved page.
*
@@ -544,34 +514,30 @@
{
int bres;
-
- if (remote_vars_pa == 0) {
+ if (remote_vars_pa == 0)
return xpcVarsNotSet;
- }
/* pull over the cross partition variables */
- bres = xp_bte_copy(remote_vars_pa, (u64) remote_vars, XPC_RP_VARS_SIZE,
- (BTE_NOTIFY | BTE_WACQUIRE), NULL);
- if (bres != BTE_SUCCESS) {
+ bres = xp_bte_copy(remote_vars_pa, (u64)remote_vars, XPC_RP_VARS_SIZE,
+ (BTE_NOTIFY | BTE_WACQUIRE), NULL);
+ if (bres != BTE_SUCCESS)
return xpc_map_bte_errors(bres);
- }
if (XPC_VERSION_MAJOR(remote_vars->version) !=
- XPC_VERSION_MAJOR(XPC_V_VERSION)) {
+ XPC_VERSION_MAJOR(XPC_V_VERSION)) {
return xpcBadVersion;
}
return xpcSuccess;
}
-
/*
* Update the remote partition's info.
*/
static void
xpc_update_partition_info(struct xpc_partition *part, u8 remote_rp_version,
- struct timespec *remote_rp_stamp, u64 remote_rp_pa,
- u64 remote_vars_pa, struct xpc_vars *remote_vars)
+ struct timespec *remote_rp_stamp, u64 remote_rp_pa,
+ u64 remote_vars_pa, struct xpc_vars *remote_vars)
{
part->remote_rp_version = remote_rp_version;
dev_dbg(xpc_part, " remote_rp_version = 0x%016x\n",
@@ -613,7 +579,6 @@
part->remote_vars_version);
}
-
/*
* Prior code has determined the nasid which generated an IPI. Inspect
* that nasid to determine if its partition needs to be activated or
@@ -643,54 +608,51 @@
struct xpc_partition *part;
enum xpc_retval ret;
-
/* pull over the reserved page structure */
- remote_rp = (struct xpc_rsvd_page *) xpc_remote_copy_buffer;
+ remote_rp = (struct xpc_rsvd_page *)xpc_remote_copy_buffer;
ret = xpc_get_remote_rp(nasid, NULL, remote_rp, &remote_rp_pa);
if (ret != xpcSuccess) {
dev_warn(xpc_part, "unable to get reserved page from nasid %d, "
- "which sent interrupt, reason=%d\n", nasid, ret);
+ "which sent interrupt, reason=%d\n", nasid, ret);
return;
}
remote_vars_pa = remote_rp->vars_pa;
remote_rp_version = remote_rp->version;
- if (XPC_SUPPORTS_RP_STAMP(remote_rp_version)) {
+ if (XPC_SUPPORTS_RP_STAMP(remote_rp_version))
remote_rp_stamp = remote_rp->stamp;
- }
+
partid = remote_rp->partid;
part = &xpc_partitions[partid];
-
/* pull over the cross partition variables */
- remote_vars = (struct xpc_vars *) xpc_remote_copy_buffer;
+ remote_vars = (struct xpc_vars *)xpc_remote_copy_buffer;
ret = xpc_get_remote_vars(remote_vars_pa, remote_vars);
if (ret != xpcSuccess) {
dev_warn(xpc_part, "unable to get XPC variables from nasid %d, "
- "which sent interrupt, reason=%d\n", nasid, ret);
+ "which sent interrupt, reason=%d\n", nasid, ret);
XPC_DEACTIVATE_PARTITION(part, ret);
return;
}
-
part->act_IRQ_rcvd++;
dev_dbg(xpc_part, "partid for nasid %d is %d; IRQs = %d; HB = "
- "%ld:0x%lx\n", (int) nasid, (int) partid, part->act_IRQ_rcvd,
+ "%ld:0x%lx\n", (int)nasid, (int)partid, part->act_IRQ_rcvd,
remote_vars->heartbeat, remote_vars->heartbeating_to_mask);
if (xpc_partition_disengaged(part) &&
- part->act_state == XPC_P_INACTIVE) {
+ part->act_state == XPC_P_INACTIVE) {
xpc_update_partition_info(part, remote_rp_version,
- &remote_rp_stamp, remote_rp_pa,
- remote_vars_pa, remote_vars);
+ &remote_rp_stamp, remote_rp_pa,
+ remote_vars_pa, remote_vars);
if (XPC_SUPPORTS_DISENGAGE_REQUEST(part->remote_vars_version)) {
if (xpc_partition_disengage_requested(1UL << partid)) {
@@ -714,16 +676,15 @@
if (!XPC_SUPPORTS_RP_STAMP(part->remote_rp_version)) {
DBUG_ON(XPC_SUPPORTS_DISENGAGE_REQUEST(part->
- remote_vars_version));
+ remote_vars_version));
if (!XPC_SUPPORTS_RP_STAMP(remote_rp_version)) {
DBUG_ON(XPC_SUPPORTS_DISENGAGE_REQUEST(remote_vars->
- version));
+ version));
/* see if the other side rebooted */
if (part->remote_amos_page_pa ==
- remote_vars->amos_page_pa &&
- xpc_hb_allowed(sn_partition_id,
- remote_vars)) {
+ remote_vars->amos_page_pa &&
+ xpc_hb_allowed(sn_partition_id, remote_vars)) {
/* doesn't look that way, so ignore the IPI */
return;
}
@@ -735,8 +696,8 @@
*/
xpc_update_partition_info(part, remote_rp_version,
- &remote_rp_stamp, remote_rp_pa,
- remote_vars_pa, remote_vars);
+ &remote_rp_stamp, remote_rp_pa,
+ remote_vars_pa, remote_vars);
part->reactivate_nasid = nasid;
XPC_DEACTIVATE_PARTITION(part, xpcReactivating);
return;
@@ -756,15 +717,15 @@
xpc_clear_partition_disengage_request(1UL << partid);
xpc_update_partition_info(part, remote_rp_version,
- &remote_rp_stamp, remote_rp_pa,
- remote_vars_pa, remote_vars);
+ &remote_rp_stamp, remote_rp_pa,
+ remote_vars_pa, remote_vars);
reactivate = 1;
} else {
DBUG_ON(!XPC_SUPPORTS_DISENGAGE_REQUEST(remote_vars->version));
stamp_diff = xpc_compare_stamps(&part->remote_rp_stamp,
- &remote_rp_stamp);
+ &remote_rp_stamp);
if (stamp_diff != 0) {
DBUG_ON(stamp_diff >= 0);
@@ -775,17 +736,18 @@
DBUG_ON(xpc_partition_engaged(1UL << partid));
DBUG_ON(xpc_partition_disengage_requested(1UL <<
- partid));
+ partid));
xpc_update_partition_info(part, remote_rp_version,
- &remote_rp_stamp, remote_rp_pa,
- remote_vars_pa, remote_vars);
+ &remote_rp_stamp,
+ remote_rp_pa, remote_vars_pa,
+ remote_vars);
reactivate = 1;
}
}
if (part->disengage_request_timeout > 0 &&
- !xpc_partition_disengaged(part)) {
+ !xpc_partition_disengaged(part)) {
/* still waiting on other side to disengage from us */
return;
}
@@ -795,12 +757,11 @@
XPC_DEACTIVATE_PARTITION(part, xpcReactivating);
} else if (XPC_SUPPORTS_DISENGAGE_REQUEST(part->remote_vars_version) &&
- xpc_partition_disengage_requested(1UL << partid)) {
+ xpc_partition_disengage_requested(1UL << partid)) {
XPC_DEACTIVATE_PARTITION(part, xpcOtherGoingDown);
}
}
-
/*
* Loop through the activation AMO variables and process any bits
* which are set. Each bit indicates a nasid sending a partition
@@ -813,20 +774,17 @@
{
int word, bit;
u64 nasid_mask;
- u64 nasid; /* remote nasid */
+ u64 nasid; /* remote nasid */
int n_IRQs_detected = 0;
AMO_t *act_amos;
-
act_amos = xpc_vars->amos_page + XPC_ACTIVATE_IRQ_AMOS;
-
/* scan through act AMO variable looking for non-zero entries */
for (word = 0; word < xp_nasid_mask_words; word++) {
- if (xpc_exiting) {
+ if (xpc_exiting)
break;
- }
nasid_mask = xpc_IPI_receive(&act_amos[word]);
if (nasid_mask == 0) {
@@ -837,7 +795,6 @@
dev_dbg(xpc_part, "AMO[%d] gave back 0x%lx\n", word,
nasid_mask);
-
/*
* If this nasid has been added to the machine since
* our partition was reset, this will retain the
@@ -846,7 +803,6 @@
*/
xpc_mach_nasids[word] |= nasid_mask;
-
/* locate the nasid(s) which sent interrupts */
for (bit = 0; bit < (8 * sizeof(u64)); bit++) {
@@ -862,7 +818,6 @@
return n_IRQs_detected;
}
-
/*
* See if the other side has responded to a partition disengage request
* from us.
@@ -873,11 +828,11 @@
partid_t partid = XPC_PARTID(part);
int disengaged;
-
disengaged = (xpc_partition_engaged(1UL << partid) == 0);
if (part->disengage_request_timeout) {
if (!disengaged) {
- if (time_before(jiffies, part->disengage_request_timeout)) {
+ if (time_before(jiffies,
+ part->disengage_request_timeout)) {
/* timelimit hasn't been reached yet */
return 0;
}
@@ -888,7 +843,7 @@
*/
dev_info(xpc_part, "disengage from remote partition %d "
- "timed out\n", partid);
+ "timed out\n", partid);
xpc_disengage_request_timedout = 1;
xpc_clear_partition_engaged(1UL << partid);
disengaged = 1;
@@ -898,23 +853,20 @@
/* cancel the timer function, provided it's not us */
if (!in_interrupt()) {
del_singleshot_timer_sync(&part->
- disengage_request_timer);
+ disengage_request_timer);
}
DBUG_ON(part->act_state != XPC_P_DEACTIVATING &&
- part->act_state != XPC_P_INACTIVE);
- if (part->act_state != XPC_P_INACTIVE) {
+ part->act_state != XPC_P_INACTIVE);
+ if (part->act_state != XPC_P_INACTIVE)
xpc_wakeup_channel_mgr(part);
- }
- if (XPC_SUPPORTS_DISENGAGE_REQUEST(part->remote_vars_version)) {
+ if (XPC_SUPPORTS_DISENGAGE_REQUEST(part->remote_vars_version))
xpc_cancel_partition_disengage_request(part);
- }
}
return disengaged;
}
-
/*
* Mark specified partition as active.
*/
@@ -924,7 +876,6 @@
unsigned long irq_flags;
enum xpc_retval ret;
-
dev_dbg(xpc_part, "setting partition %d to ACTIVE\n", XPC_PARTID(part));
spin_lock_irqsave(&part->act_lock, irq_flags);
@@ -940,17 +891,15 @@
return ret;
}
-
/*
* Notify XPC that the partition is down.
*/
void
xpc_deactivate_partition(const int line, struct xpc_partition *part,
- enum xpc_retval reason)
+ enum xpc_retval reason)
{
unsigned long irq_flags;
-
spin_lock_irqsave(&part->act_lock, irq_flags);
if (part->act_state == XPC_P_INACTIVE) {
@@ -964,7 +913,7 @@
}
if (part->act_state == XPC_P_DEACTIVATING) {
if ((part->reason == xpcUnloading && reason != xpcUnloading) ||
- reason == xpcReactivating) {
+ reason == xpcReactivating) {
XPC_SET_REASON(part, reason, line);
}
spin_unlock_irqrestore(&part->act_lock, irq_flags);
@@ -982,9 +931,9 @@
/* set a timelimit on the disengage request */
part->disengage_request_timeout = jiffies +
- (xpc_disengage_request_timelimit * HZ);
+ (xpc_disengage_request_timelimit * HZ);
part->disengage_request_timer.expires =
- part->disengage_request_timeout;
+ part->disengage_request_timeout;
add_timer(&part->disengage_request_timer);
}
@@ -994,7 +943,6 @@
xpc_partition_going_down(part, reason);
}
-
/*
* Mark specified partition as inactive.
*/
@@ -1003,7 +951,6 @@
{
unsigned long irq_flags;
-
dev_dbg(xpc_part, "setting partition %d to INACTIVE\n",
XPC_PARTID(part));
@@ -1013,7 +960,6 @@
part->remote_rp_pa = 0;
}
-
/*
* SAL has provided a partition and machine mask. The partition mask
* contains a bit for each even nasid in our partition. The machine
@@ -1041,24 +987,22 @@
u64 *discovered_nasids;
enum xpc_retval ret;
-
remote_rp = xpc_kmalloc_cacheline_aligned(XPC_RP_HEADER_SIZE +
- xp_nasid_mask_bytes,
- GFP_KERNEL, &remote_rp_base);
- if (remote_rp == NULL) {
+ xp_nasid_mask_bytes,
+ GFP_KERNEL, &remote_rp_base);
+ if (remote_rp == NULL)
return;
- }
- remote_vars = (struct xpc_vars *) remote_rp;
+ remote_vars = (struct xpc_vars *)remote_rp;
discovered_nasids = kzalloc(sizeof(u64) * xp_nasid_mask_words,
- GFP_KERNEL);
+ GFP_KERNEL);
if (discovered_nasids == NULL) {
kfree(remote_rp_base);
return;
}
- rp = (struct xpc_rsvd_page *) xpc_rsvd_page;
+ rp = (struct xpc_rsvd_page *)xpc_rsvd_page;
/*
* The term 'region' in this context refers to the minimum number of
@@ -1081,23 +1025,19 @@
for (region = 0; region < max_regions; region++) {
- if ((volatile int) xpc_exiting) {
+ if (xpc_exiting)
break;
- }
dev_dbg(xpc_part, "searching region %d\n", region);
for (nasid = (region * region_size * 2);
- nasid < ((region + 1) * region_size * 2);
- nasid += 2) {
+ nasid < ((region + 1) * region_size * 2); nasid += 2) {
- if ((volatile int) xpc_exiting) {
+ if (xpc_exiting)
break;
- }
dev_dbg(xpc_part, "checking nasid %d\n", nasid);
-
if (XPC_NASID_IN_ARRAY(nasid, xpc_part_nasids)) {
dev_dbg(xpc_part, "PROM indicates Nasid %d is "
"part of the local partition; skipping "
@@ -1119,19 +1059,18 @@
continue;
}
-
/* pull over the reserved page structure */
ret = xpc_get_remote_rp(nasid, discovered_nasids,
- remote_rp, &remote_rp_pa);
+ remote_rp, &remote_rp_pa);
if (ret != xpcSuccess) {
dev_dbg(xpc_part, "unable to get reserved page "
"from nasid %d, reason=%d\n", nasid,
ret);
- if (ret == xpcLocalPartid) {
+ if (ret == xpcLocalPartid)
break;
- }
+
continue;
}
@@ -1140,7 +1079,6 @@
partid = remote_rp->partid;
part = &xpc_partitions[partid];
-
/* pull over the cross partition variables */
ret = xpc_get_remote_vars(remote_vars_pa, remote_vars);
@@ -1171,15 +1109,15 @@
* get the same page for remote_act_amos_pa after
* module reloads and system reboots.
*/
- if (sn_register_xp_addr_region(
- remote_vars->amos_page_pa,
- PAGE_SIZE, 1) < 0) {
- dev_dbg(xpc_part, "partition %d failed to "
+ if (sn_register_xp_addr_region
+ (remote_vars->amos_page_pa, PAGE_SIZE, 1) < 0) {
+ dev_dbg(xpc_part,
+ "partition %d failed to "
"register xp_addr region 0x%016lx\n",
partid, remote_vars->amos_page_pa);
XPC_SET_REASON(part, xpcPhysAddrRegFailed,
- __LINE__);
+ __LINE__);
break;
}
@@ -1195,9 +1133,9 @@
remote_vars->act_phys_cpuid);
if (XPC_SUPPORTS_DISENGAGE_REQUEST(remote_vars->
- version)) {
+ version)) {
part->remote_amos_page_pa =
- remote_vars->amos_page_pa;
+ remote_vars->amos_page_pa;
xpc_mark_partition_disengaged(part);
xpc_cancel_partition_disengage_request(part);
}
@@ -1209,7 +1147,6 @@
kfree(remote_rp_base);
}
-
/*
* Given a partid, get the nasids owned by that partition from the
* remote partition's reserved page.
@@ -1221,19 +1158,17 @@
u64 part_nasid_pa;
int bte_res;
-
part = &xpc_partitions[partid];
- if (part->remote_rp_pa == 0) {
+ if (part->remote_rp_pa == 0)
return xpcPartitionDown;
- }
memset(nasid_mask, 0, XP_NASID_MASK_BYTES);
- part_nasid_pa = (u64) XPC_RP_PART_NASIDS(part->remote_rp_pa);
+ part_nasid_pa = (u64)XPC_RP_PART_NASIDS(part->remote_rp_pa);
- bte_res = xp_bte_copy(part_nasid_pa, (u64) nasid_mask,
- xp_nasid_mask_bytes, (BTE_NOTIFY | BTE_WACQUIRE), NULL);
+ bte_res = xp_bte_copy(part_nasid_pa, (u64)nasid_mask,
+ xp_nasid_mask_bytes, (BTE_NOTIFY | BTE_WACQUIRE),
+ NULL);
return xpc_map_bte_errors(bte_res);
}
-
diff --git a/arch/ia64/sn/kernel/xpnet.c b/drivers/misc/sgi-xp/xpnet.c
similarity index 89%
rename from arch/ia64/sn/kernel/xpnet.c
rename to drivers/misc/sgi-xp/xpnet.c
index a5df672..a9543c6 100644
--- a/arch/ia64/sn/kernel/xpnet.c
+++ b/drivers/misc/sgi-xp/xpnet.c
@@ -3,10 +3,9 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (C) 1999,2001-2005 Silicon Graphics, Inc. All rights reserved.
+ * Copyright (C) 1999-2008 Silicon Graphics, Inc. All rights reserved.
*/
-
/*
* Cross Partition Network Interface (XPNET) support
*
@@ -21,8 +20,8 @@
*
*/
-
#include <linux/module.h>
+#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/ioport.h>
@@ -36,10 +35,8 @@
#include <asm/sn/bte.h>
#include <asm/sn/io.h>
#include <asm/sn/sn_sal.h>
-#include <asm/types.h>
#include <asm/atomic.h>
-#include <asm/sn/xp.h>
-
+#include "xp.h"
/*
* The message payload transferred by XPC.
@@ -79,7 +76,6 @@
#define XPNET_MSG_ALIGNED_SIZE (L1_CACHE_ALIGN(XPNET_MSG_SIZE))
#define XPNET_MSG_NENTRIES (PAGE_SIZE / XPNET_MSG_ALIGNED_SIZE)
-
#define XPNET_MAX_KTHREADS (XPNET_MSG_NENTRIES + 1)
#define XPNET_MAX_IDLE_KTHREADS (XPNET_MSG_NENTRIES + 1)
@@ -91,9 +87,9 @@
#define XPNET_VERSION_MAJOR(_v) ((_v) >> 4)
#define XPNET_VERSION_MINOR(_v) ((_v) & 0xf)
-#define XPNET_VERSION _XPNET_VERSION(1,0) /* version 1.0 */
-#define XPNET_VERSION_EMBED _XPNET_VERSION(1,1) /* version 1.1 */
-#define XPNET_MAGIC 0x88786984 /* "XNET" */
+#define XPNET_VERSION _XPNET_VERSION(1, 0) /* version 1.0 */
+#define XPNET_VERSION_EMBED _XPNET_VERSION(1, 1) /* version 1.1 */
+#define XPNET_MAGIC 0x88786984 /* "XNET" */
#define XPNET_VALID_MSG(_m) \
((XPNET_VERSION_MAJOR(_m->version) == XPNET_VERSION_MAJOR(XPNET_VERSION)) \
@@ -101,7 +97,6 @@
#define XPNET_DEVICE_NAME "xp0"
-
/*
* When messages are queued with xpc_send_notify, a kmalloc'd buffer
* of the following type is passed as a notification cookie. When the
@@ -145,7 +140,6 @@
/* 32KB has been determined to be the ideal */
#define XPNET_DEF_MTU (0x8000UL)
-
/*
* The partition id is encapsulated in the MAC address. The following
* define locates the octet the partid is in.
@@ -153,7 +147,6 @@
#define XPNET_PARTID_OCTET 1
#define XPNET_LICENSE_OCTET 2
-
/*
* Define the XPNET debug device structure that is to be used with dev_dbg(),
* dev_err(), dev_warn(), and dev_info().
@@ -163,7 +156,7 @@
};
struct device xpnet_dbg_subname = {
- .bus_id = {0}, /* set to "" */
+ .bus_id = {0}, /* set to "" */
.driver = &xpnet_dbg_name
};
@@ -178,14 +171,13 @@
struct sk_buff *skb;
bte_result_t bret;
struct xpnet_dev_private *priv =
- (struct xpnet_dev_private *) xpnet_device->priv;
-
+ (struct xpnet_dev_private *)xpnet_device->priv;
if (!XPNET_VALID_MSG(msg)) {
/*
* Packet with a different XPC version. Ignore.
*/
- xpc_received(partid, channel, (void *) msg);
+ xpc_received(partid, channel, (void *)msg);
priv->stats.rx_errors++;
@@ -194,14 +186,13 @@
dev_dbg(xpnet, "received 0x%lx, %d, %d, %d\n", msg->buf_pa, msg->size,
msg->leadin_ignore, msg->tailout_ignore);
-
/* reserve an extra cache line */
skb = dev_alloc_skb(msg->size + L1_CACHE_BYTES);
if (!skb) {
dev_err(xpnet, "failed on dev_alloc_skb(%d)\n",
msg->size + L1_CACHE_BYTES);
- xpc_received(partid, channel, (void *) msg);
+ xpc_received(partid, channel, (void *)msg);
priv->stats.rx_errors++;
@@ -227,12 +218,13 @@
* Move the data over from the other side.
*/
if ((XPNET_VERSION_MINOR(msg->version) == 1) &&
- (msg->embedded_bytes != 0)) {
+ (msg->embedded_bytes != 0)) {
dev_dbg(xpnet, "copying embedded message. memcpy(0x%p, 0x%p, "
"%lu)\n", skb->data, &msg->data,
- (size_t) msg->embedded_bytes);
+ (size_t)msg->embedded_bytes);
- skb_copy_to_linear_data(skb, &msg->data, (size_t)msg->embedded_bytes);
+ skb_copy_to_linear_data(skb, &msg->data,
+ (size_t)msg->embedded_bytes);
} else {
dev_dbg(xpnet, "transferring buffer to the skb->data area;\n\t"
"bte_copy(0x%p, 0x%p, %hu)\n", (void *)msg->buf_pa,
@@ -244,16 +236,18 @@
msg->size, (BTE_NOTIFY | BTE_WACQUIRE), NULL);
if (bret != BTE_SUCCESS) {
- // >>> Need better way of cleaning skb. Currently skb
- // >>> appears in_use and we can't just call
- // >>> dev_kfree_skb.
+ /*
+ * >>> Need better way of cleaning skb. Currently skb
+ * >>> appears in_use and we can't just call
+ * >>> dev_kfree_skb.
+ */
dev_err(xpnet, "bte_copy(0x%p, 0x%p, 0x%hx) returned "
"error=0x%x\n", (void *)msg->buf_pa,
(void *)__pa((u64)skb->data &
- ~(L1_CACHE_BYTES - 1)),
+ ~(L1_CACHE_BYTES - 1)),
msg->size, bret);
- xpc_received(partid, channel, (void *) msg);
+ xpc_received(partid, channel, (void *)msg);
priv->stats.rx_errors++;
@@ -262,7 +256,7 @@
}
dev_dbg(xpnet, "<skb->head=0x%p skb->data=0x%p skb->tail=0x%p "
- "skb->end=0x%p skb->len=%d\n", (void *) skb->head,
+ "skb->end=0x%p skb->len=%d\n", (void *)skb->head,
(void *)skb->data, skb_tail_pointer(skb), skb_end_pointer(skb),
skb->len);
@@ -275,16 +269,14 @@
(void *)skb->head, (void *)skb->data, skb_tail_pointer(skb),
skb_end_pointer(skb), skb->len);
-
xpnet_device->last_rx = jiffies;
priv->stats.rx_packets++;
priv->stats.rx_bytes += skb->len + ETH_HLEN;
netif_rx_ni(skb);
- xpc_received(partid, channel, (void *) msg);
+ xpc_received(partid, channel, (void *)msg);
}
-
/*
* This is the handler which XPC calls during any sort of change in
* state or message reception on a connection.
@@ -295,20 +287,19 @@
{
long bp;
-
DBUG_ON(partid <= 0 || partid >= XP_MAX_PARTITIONS);
DBUG_ON(channel != XPC_NET_CHANNEL);
- switch(reason) {
+ switch (reason) {
case xpcMsgReceived: /* message received */
DBUG_ON(data == NULL);
- xpnet_receive(partid, channel, (struct xpnet_message *) data);
+ xpnet_receive(partid, channel, (struct xpnet_message *)data);
break;
case xpcConnected: /* connection completed to a partition */
spin_lock_bh(&xpnet_broadcast_lock);
- xpnet_broadcast_partitions |= 1UL << (partid -1 );
+ xpnet_broadcast_partitions |= 1UL << (partid - 1);
bp = xpnet_broadcast_partitions;
spin_unlock_bh(&xpnet_broadcast_lock);
@@ -321,13 +312,12 @@
default:
spin_lock_bh(&xpnet_broadcast_lock);
- xpnet_broadcast_partitions &= ~(1UL << (partid -1 ));
+ xpnet_broadcast_partitions &= ~(1UL << (partid - 1));
bp = xpnet_broadcast_partitions;
spin_unlock_bh(&xpnet_broadcast_lock);
- if (bp == 0) {
+ if (bp == 0)
netif_carrier_off(xpnet_device);
- }
dev_dbg(xpnet, "%s disconnected from partition %d; "
"xpnet_broadcast_partitions=0x%lx\n",
@@ -337,13 +327,11 @@
}
}
-
static int
xpnet_dev_open(struct net_device *dev)
{
enum xpc_retval ret;
-
dev_dbg(xpnet, "calling xpc_connect(%d, 0x%p, NULL, %ld, %ld, %ld, "
"%ld)\n", XPC_NET_CHANNEL, xpnet_connection_activity,
XPNET_MSG_SIZE, XPNET_MSG_NENTRIES, XPNET_MAX_KTHREADS,
@@ -364,7 +352,6 @@
return 0;
}
-
static int
xpnet_dev_stop(struct net_device *dev)
{
@@ -375,7 +362,6 @@
return 0;
}
-
static int
xpnet_dev_change_mtu(struct net_device *dev, int new_mtu)
{
@@ -392,7 +378,6 @@
return 0;
}
-
/*
* Required for the net_device structure.
*/
@@ -402,7 +387,6 @@
return 0;
}
-
/*
* Return statistics to the caller.
*/
@@ -411,13 +395,11 @@
{
struct xpnet_dev_private *priv;
-
- priv = (struct xpnet_dev_private *) dev->priv;
+ priv = (struct xpnet_dev_private *)dev->priv;
return &priv->stats;
}
-
/*
* Notification that the other end has received the message and
* DMA'd the skb information. At this point, they are done with
@@ -426,11 +408,9 @@
*/
static void
xpnet_send_completed(enum xpc_retval reason, partid_t partid, int channel,
- void *__qm)
+ void *__qm)
{
- struct xpnet_pending_msg *queued_msg =
- (struct xpnet_pending_msg *) __qm;
-
+ struct xpnet_pending_msg *queued_msg = (struct xpnet_pending_msg *)__qm;
DBUG_ON(queued_msg == NULL);
@@ -439,14 +419,13 @@
if (atomic_dec_return(&queued_msg->use_count) == 0) {
dev_dbg(xpnet, "all acks for skb->head=-x%p\n",
- (void *) queued_msg->skb->head);
+ (void *)queued_msg->skb->head);
dev_kfree_skb_any(queued_msg->skb);
kfree(queued_msg);
}
}
-
/*
* Network layer has formatted a packet (skb) and is ready to place it
* "on the wire". Prepare and send an xpnet_message to all partitions
@@ -469,16 +448,13 @@
struct xpnet_dev_private *priv;
u16 embedded_bytes;
-
- priv = (struct xpnet_dev_private *) dev->priv;
-
+ priv = (struct xpnet_dev_private *)dev->priv;
dev_dbg(xpnet, ">skb->head=0x%p skb->data=0x%p skb->tail=0x%p "
- "skb->end=0x%p skb->len=%d\n", (void *) skb->head,
+ "skb->end=0x%p skb->len=%d\n", (void *)skb->head,
(void *)skb->data, skb_tail_pointer(skb), skb_end_pointer(skb),
skb->len);
-
/*
* The xpnet_pending_msg tracks how many outstanding
* xpc_send_notifies are relying on this skb. When none
@@ -487,16 +463,15 @@
queued_msg = kmalloc(sizeof(struct xpnet_pending_msg), GFP_ATOMIC);
if (queued_msg == NULL) {
dev_warn(xpnet, "failed to kmalloc %ld bytes; dropping "
- "packet\n", sizeof(struct xpnet_pending_msg));
+ "packet\n", sizeof(struct xpnet_pending_msg));
priv->stats.tx_errors++;
return -ENOMEM;
}
-
/* get the beginning of the first cacheline and end of last */
- start_addr = ((u64) skb->data & ~(L1_CACHE_BYTES - 1));
+ start_addr = ((u64)skb->data & ~(L1_CACHE_BYTES - 1));
end_addr = L1_CACHE_ALIGN((u64)skb_tail_pointer(skb));
/* calculate how many bytes to embed in the XPC message */
@@ -506,7 +481,6 @@
embedded_bytes = skb->len;
}
-
/*
* Since the send occurs asynchronously, we set the count to one
* and begin sending. Any sends that happen to complete before
@@ -517,14 +491,13 @@
atomic_set(&queued_msg->use_count, 1);
queued_msg->skb = skb;
-
second_mac_octet = skb->data[XPNET_PARTID_OCTET];
if (second_mac_octet == 0xff) {
/* we are being asked to broadcast to all partitions */
dp = xpnet_broadcast_partitions;
} else if (second_mac_octet != 0) {
dp = xpnet_broadcast_partitions &
- (1UL << (second_mac_octet - 1));
+ (1UL << (second_mac_octet - 1));
} else {
/* 0 is an invalid partid. Ignore */
dp = 0;
@@ -543,7 +516,6 @@
for (dest_partid = 1; dp && dest_partid < XP_MAX_PARTITIONS;
dest_partid++) {
-
if (!(dp & (1UL << (dest_partid - 1)))) {
/* not destined for this partition */
continue;
@@ -552,20 +524,18 @@
/* remove this partition from the destinations mask */
dp &= ~(1UL << (dest_partid - 1));
-
/* found a partition to send to */
ret = xpc_allocate(dest_partid, XPC_NET_CHANNEL,
XPC_NOWAIT, (void **)&msg);
- if (unlikely(ret != xpcSuccess)) {
+ if (unlikely(ret != xpcSuccess))
continue;
- }
msg->embedded_bytes = embedded_bytes;
if (unlikely(embedded_bytes != 0)) {
msg->version = XPNET_VERSION_EMBED;
dev_dbg(xpnet, "calling memcpy(0x%p, 0x%p, 0x%lx)\n",
- &msg->data, skb->data, (size_t) embedded_bytes);
+ &msg->data, skb->data, (size_t)embedded_bytes);
skb_copy_from_linear_data(skb, &msg->data,
(size_t)embedded_bytes);
} else {
@@ -573,7 +543,7 @@
}
msg->magic = XPNET_MAGIC;
msg->size = end_addr - start_addr;
- msg->leadin_ignore = (u64) skb->data - start_addr;
+ msg->leadin_ignore = (u64)skb->data - start_addr;
msg->tailout_ignore = end_addr - (u64)skb_tail_pointer(skb);
msg->buf_pa = __pa(start_addr);
@@ -583,7 +553,6 @@
dest_partid, XPC_NET_CHANNEL, msg->buf_pa, msg->size,
msg->leadin_ignore, msg->tailout_ignore);
-
atomic_inc(&queued_msg->use_count);
ret = xpc_send_notify(dest_partid, XPC_NET_CHANNEL, msg,
@@ -592,14 +561,12 @@
atomic_dec(&queued_msg->use_count);
continue;
}
-
}
if (atomic_dec_return(&queued_msg->use_count) == 0) {
dev_dbg(xpnet, "no partitions to receive packet destined for "
"%d\n", dest_partid);
-
dev_kfree_skb(skb);
kfree(queued_msg);
}
@@ -610,23 +577,20 @@
return 0;
}
-
/*
* Deal with transmit timeouts coming from the network layer.
*/
static void
-xpnet_dev_tx_timeout (struct net_device *dev)
+xpnet_dev_tx_timeout(struct net_device *dev)
{
struct xpnet_dev_private *priv;
-
- priv = (struct xpnet_dev_private *) dev->priv;
+ priv = (struct xpnet_dev_private *)dev->priv;
priv->stats.tx_errors++;
return;
}
-
static int __init
xpnet_init(void)
{
@@ -634,10 +598,8 @@
u32 license_num;
int result = -ENOMEM;
-
- if (!ia64_platform_is("sn2")) {
+ if (!ia64_platform_is("sn2"))
return -ENODEV;
- }
dev_info(xpnet, "registering network device %s\n", XPNET_DEVICE_NAME);
@@ -647,9 +609,8 @@
*/
xpnet_device = alloc_netdev(sizeof(struct xpnet_dev_private),
XPNET_DEVICE_NAME, ether_setup);
- if (xpnet_device == NULL) {
+ if (xpnet_device == NULL)
return -ENOMEM;
- }
netif_carrier_off(xpnet_device);
@@ -672,7 +633,7 @@
license_num = sn_partition_serial_number_val();
for (i = 3; i >= 0; i--) {
xpnet_device->dev_addr[XPNET_LICENSE_OCTET + i] =
- license_num & 0xff;
+ license_num & 0xff;
license_num = license_num >> 8;
}
@@ -690,29 +651,27 @@
xpnet_device->features = NETIF_F_NO_CSUM;
result = register_netdev(xpnet_device);
- if (result != 0) {
+ if (result != 0)
free_netdev(xpnet_device);
- }
return result;
}
-module_init(xpnet_init);
+module_init(xpnet_init);
static void __exit
xpnet_exit(void)
{
dev_info(xpnet, "unregistering network device %s\n",
- xpnet_device[0].name);
+ xpnet_device[0].name);
unregister_netdev(xpnet_device);
free_netdev(xpnet_device);
}
-module_exit(xpnet_exit);
+module_exit(xpnet_exit);
MODULE_AUTHOR("Silicon Graphics, Inc.");
MODULE_DESCRIPTION("Cross Partition Network adapter (XPNET)");
MODULE_LICENSE("GPL");
-
diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index f9b7bdd..8ddb918 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -416,13 +416,13 @@
* Reserve some resources for CardBus. We reserve
* a fixed amount of bus space for CardBus bridges.
*/
- b_res[0].start = pci_cardbus_io_size;
- b_res[0].end = b_res[0].start + pci_cardbus_io_size - 1;
- b_res[0].flags |= IORESOURCE_IO;
+ b_res[0].start = 0;
+ b_res[0].end = pci_cardbus_io_size - 1;
+ b_res[0].flags |= IORESOURCE_IO | IORESOURCE_SIZEALIGN;
- b_res[1].start = pci_cardbus_io_size;
- b_res[1].end = b_res[1].start + pci_cardbus_io_size - 1;
- b_res[1].flags |= IORESOURCE_IO;
+ b_res[1].start = 0;
+ b_res[1].end = pci_cardbus_io_size - 1;
+ b_res[1].flags |= IORESOURCE_IO | IORESOURCE_SIZEALIGN;
/*
* Check whether prefetchable memory is supported
@@ -441,17 +441,17 @@
* twice the size.
*/
if (ctrl & PCI_CB_BRIDGE_CTL_PREFETCH_MEM0) {
- b_res[2].start = pci_cardbus_mem_size;
- b_res[2].end = b_res[2].start + pci_cardbus_mem_size - 1;
- b_res[2].flags |= IORESOURCE_MEM | IORESOURCE_PREFETCH;
+ b_res[2].start = 0;
+ b_res[2].end = pci_cardbus_mem_size - 1;
+ b_res[2].flags |= IORESOURCE_MEM | IORESOURCE_PREFETCH | IORESOURCE_SIZEALIGN;
- b_res[3].start = pci_cardbus_mem_size;
- b_res[3].end = b_res[3].start + pci_cardbus_mem_size - 1;
- b_res[3].flags |= IORESOURCE_MEM;
+ b_res[3].start = 0;
+ b_res[3].end = pci_cardbus_mem_size - 1;
+ b_res[3].flags |= IORESOURCE_MEM | IORESOURCE_SIZEALIGN;
} else {
- b_res[3].start = pci_cardbus_mem_size * 2;
- b_res[3].end = b_res[3].start + pci_cardbus_mem_size * 2 - 1;
- b_res[3].flags |= IORESOURCE_MEM;
+ b_res[3].start = 0;
+ b_res[3].end = pci_cardbus_mem_size * 2 - 1;
+ b_res[3].flags |= IORESOURCE_MEM | IORESOURCE_SIZEALIGN;
}
}
diff --git a/fs/Kconfig b/fs/Kconfig
index 028ae38..8b18a87 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -689,6 +689,7 @@
config UDF_FS
tristate "UDF file system support"
+ select CRC_ITU_T
help
This is the new file system used on some CD-ROMs and DVDs. Say Y if
you intend to mount DVD discs or CDRW's written in packet mode, or
diff --git a/fs/dlm/Makefile b/fs/dlm/Makefile
index d248e60..ca1c912 100644
--- a/fs/dlm/Makefile
+++ b/fs/dlm/Makefile
@@ -10,6 +10,7 @@
midcomms.o \
netlink.o \
lowcomms.o \
+ plock.o \
rcom.o \
recover.o \
recoverd.o \
diff --git a/fs/dlm/config.c b/fs/dlm/config.c
index c3ad1df..eac23bd 100644
--- a/fs/dlm/config.c
+++ b/fs/dlm/config.c
@@ -114,7 +114,7 @@
};
static ssize_t cluster_set(struct cluster *cl, unsigned int *cl_field,
- unsigned int *info_field, int check_zero,
+ int *info_field, int check_zero,
const char *buf, size_t len)
{
unsigned int x;
@@ -284,6 +284,7 @@
struct list_head list; /* space->members */
int nodeid;
int weight;
+ int new;
};
static struct configfs_group_operations clusters_ops = {
@@ -565,6 +566,7 @@
config_item_init_type_name(&nd->item, name, &node_type);
nd->nodeid = -1;
nd->weight = 1; /* default weight of 1 if none is set */
+ nd->new = 1; /* set to 0 once it's been read by dlm_nodeid_list() */
mutex_lock(&sp->members_lock);
list_add(&nd->list, &sp->members);
@@ -805,12 +807,13 @@
}
/* caller must free mem */
-int dlm_nodeid_list(char *lsname, int **ids_out)
+int dlm_nodeid_list(char *lsname, int **ids_out, int *ids_count_out,
+ int **new_out, int *new_count_out)
{
struct space *sp;
struct node *nd;
- int i = 0, rv = 0;
- int *ids;
+ int i = 0, rv = 0, ids_count = 0, new_count = 0;
+ int *ids, *new;
sp = get_space(lsname);
if (!sp)
@@ -818,23 +821,50 @@
mutex_lock(&sp->members_lock);
if (!sp->members_count) {
- rv = 0;
+ rv = -EINVAL;
+ printk(KERN_ERR "dlm: zero members_count\n");
goto out;
}
- ids = kcalloc(sp->members_count, sizeof(int), GFP_KERNEL);
+ ids_count = sp->members_count;
+
+ ids = kcalloc(ids_count, sizeof(int), GFP_KERNEL);
if (!ids) {
rv = -ENOMEM;
goto out;
}
- rv = sp->members_count;
- list_for_each_entry(nd, &sp->members, list)
+ list_for_each_entry(nd, &sp->members, list) {
ids[i++] = nd->nodeid;
+ if (nd->new)
+ new_count++;
+ }
- if (rv != i)
- printk("bad nodeid count %d %d\n", rv, i);
+ if (ids_count != i)
+ printk(KERN_ERR "dlm: bad nodeid count %d %d\n", ids_count, i);
+ if (!new_count)
+ goto out_ids;
+
+ new = kcalloc(new_count, sizeof(int), GFP_KERNEL);
+ if (!new) {
+ kfree(ids);
+ rv = -ENOMEM;
+ goto out;
+ }
+
+ i = 0;
+ list_for_each_entry(nd, &sp->members, list) {
+ if (nd->new) {
+ new[i++] = nd->nodeid;
+ nd->new = 0;
+ }
+ }
+ *new_count_out = new_count;
+ *new_out = new;
+
+ out_ids:
+ *ids_count_out = ids_count;
*ids_out = ids;
out:
mutex_unlock(&sp->members_lock);
diff --git a/fs/dlm/config.h b/fs/dlm/config.h
index a3170fe..4f1d6fc 100644
--- a/fs/dlm/config.h
+++ b/fs/dlm/config.h
@@ -35,7 +35,8 @@
int dlm_config_init(void);
void dlm_config_exit(void);
int dlm_node_weight(char *lsname, int nodeid);
-int dlm_nodeid_list(char *lsname, int **ids_out);
+int dlm_nodeid_list(char *lsname, int **ids_out, int *ids_count_out,
+ int **new_out, int *new_count_out);
int dlm_nodeid_to_addr(int nodeid, struct sockaddr_storage *addr);
int dlm_addr_to_nodeid(struct sockaddr_storage *addr, int *nodeid);
int dlm_our_nodeid(void);
diff --git a/fs/dlm/dlm_internal.h b/fs/dlm/dlm_internal.h
index 7a8824f4..5a7ac33 100644
--- a/fs/dlm/dlm_internal.h
+++ b/fs/dlm/dlm_internal.h
@@ -42,8 +42,6 @@
#include <linux/dlm.h>
#include "config.h"
-#define DLM_LOCKSPACE_LEN 64
-
/* Size of the temp buffer midcomms allocates on the stack.
We try to make this large enough so most messages fit.
FIXME: should sctp make this unnecessary? */
@@ -132,8 +130,10 @@
struct dlm_recover {
struct list_head list;
- int *nodeids;
+ int *nodeids; /* nodeids of all members */
int node_count;
+ int *new; /* nodeids of new members */
+ int new_count;
uint64_t seq;
};
@@ -579,6 +579,8 @@
int dlm_netlink_init(void);
void dlm_netlink_exit(void);
void dlm_timeout_warn(struct dlm_lkb *lkb);
+int dlm_plock_init(void);
+void dlm_plock_exit(void);
#ifdef CONFIG_DLM_DEBUG
int dlm_register_debugfs(void);
diff --git a/fs/dlm/lock.c b/fs/dlm/lock.c
index 8f250ac..2d3d102 100644
--- a/fs/dlm/lock.c
+++ b/fs/dlm/lock.c
@@ -165,7 +165,7 @@
lkb->lkb_grmode, lkb->lkb_wait_type, lkb->lkb_ast_type);
}
-void dlm_print_rsb(struct dlm_rsb *r)
+static void dlm_print_rsb(struct dlm_rsb *r)
{
printk(KERN_ERR "rsb: nodeid %d flags %lx first %x rlc %d name %s\n",
r->res_nodeid, r->res_flags, r->res_first_lkid,
@@ -1956,8 +1956,7 @@
list_del_init(&lkb->lkb_rsb_lookup);
r->res_first_lkid = lkb->lkb_id;
_request_lock(r, lkb);
- } else
- r->res_nodeid = -1;
+ }
break;
default:
diff --git a/fs/dlm/lock.h b/fs/dlm/lock.h
index 05d9c82..88e93c8 100644
--- a/fs/dlm/lock.h
+++ b/fs/dlm/lock.h
@@ -13,7 +13,6 @@
#ifndef __LOCK_DOT_H__
#define __LOCK_DOT_H__
-void dlm_print_rsb(struct dlm_rsb *r);
void dlm_dump_rsb(struct dlm_rsb *r);
void dlm_print_lkb(struct dlm_lkb *lkb);
void dlm_receive_message_saved(struct dlm_ls *ls, struct dlm_message *ms);
diff --git a/fs/dlm/main.c b/fs/dlm/main.c
index 58487fb..b80e0aa 100644
--- a/fs/dlm/main.c
+++ b/fs/dlm/main.c
@@ -46,10 +46,16 @@
if (error)
goto out_user;
+ error = dlm_plock_init();
+ if (error)
+ goto out_netlink;
+
printk("DLM (built %s %s) installed\n", __DATE__, __TIME__);
return 0;
+ out_netlink:
+ dlm_netlink_exit();
out_user:
dlm_user_exit();
out_debug:
@@ -66,6 +72,7 @@
static void __exit exit_dlm(void)
{
+ dlm_plock_exit();
dlm_netlink_exit();
dlm_user_exit();
dlm_config_exit();
diff --git a/fs/dlm/member.c b/fs/dlm/member.c
index fa17f5a..26133f0 100644
--- a/fs/dlm/member.c
+++ b/fs/dlm/member.c
@@ -210,6 +210,23 @@
}
}
+ /* Add an entry to ls_nodes_gone for members that were removed and
+ then added again, so that previous state for these nodes will be
+ cleared during recovery. */
+
+ for (i = 0; i < rv->new_count; i++) {
+ if (!dlm_is_member(ls, rv->new[i]))
+ continue;
+ log_debug(ls, "new nodeid %d is a re-added member", rv->new[i]);
+
+ memb = kzalloc(sizeof(struct dlm_member), GFP_KERNEL);
+ if (!memb)
+ return -ENOMEM;
+ memb->nodeid = rv->new[i];
+ list_add_tail(&memb->list, &ls->ls_nodes_gone);
+ neg++;
+ }
+
/* add new members to ls_nodes */
for (i = 0; i < rv->node_count; i++) {
@@ -314,15 +331,16 @@
int dlm_ls_start(struct dlm_ls *ls)
{
struct dlm_recover *rv = NULL, *rv_old;
- int *ids = NULL;
- int error, count;
+ int *ids = NULL, *new = NULL;
+ int error, ids_count = 0, new_count = 0;
rv = kzalloc(sizeof(struct dlm_recover), GFP_KERNEL);
if (!rv)
return -ENOMEM;
- error = count = dlm_nodeid_list(ls->ls_name, &ids);
- if (error <= 0)
+ error = dlm_nodeid_list(ls->ls_name, &ids, &ids_count,
+ &new, &new_count);
+ if (error < 0)
goto fail;
spin_lock(&ls->ls_recover_lock);
@@ -337,14 +355,19 @@
}
rv->nodeids = ids;
- rv->node_count = count;
+ rv->node_count = ids_count;
+ rv->new = new;
+ rv->new_count = new_count;
rv->seq = ++ls->ls_recover_seq;
rv_old = ls->ls_recover_args;
ls->ls_recover_args = rv;
spin_unlock(&ls->ls_recover_lock);
if (rv_old) {
+ log_error(ls, "unused recovery %llx %d",
+ (unsigned long long)rv_old->seq, rv_old->node_count);
kfree(rv_old->nodeids);
+ kfree(rv_old->new);
kfree(rv_old);
}
@@ -354,6 +377,7 @@
fail:
kfree(rv);
kfree(ids);
+ kfree(new);
return error;
}
diff --git a/fs/gfs2/locking/dlm/plock.c b/fs/dlm/plock.c
similarity index 67%
rename from fs/gfs2/locking/dlm/plock.c
rename to fs/dlm/plock.c
index 2ebd374..d6d6e37 100644
--- a/fs/gfs2/locking/dlm/plock.c
+++ b/fs/dlm/plock.c
@@ -1,17 +1,19 @@
/*
- * Copyright (C) 2005 Red Hat, Inc. All rights reserved.
+ * Copyright (C) 2005-2008 Red Hat, Inc. All rights reserved.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU General Public License version 2.
*/
+#include <linux/fs.h>
#include <linux/miscdevice.h>
-#include <linux/lock_dlm_plock.h>
#include <linux/poll.h>
+#include <linux/dlm.h>
+#include <linux/dlm_plock.h>
-#include "lock_dlm.h"
-
+#include "dlm_internal.h"
+#include "lockspace.h"
static spinlock_t ops_lock;
static struct list_head send_list;
@@ -22,7 +24,7 @@
struct plock_op {
struct list_head list;
int done;
- struct gdlm_plock_info info;
+ struct dlm_plock_info info;
};
struct plock_xop {
@@ -34,22 +36,22 @@
};
-static inline void set_version(struct gdlm_plock_info *info)
+static inline void set_version(struct dlm_plock_info *info)
{
- info->version[0] = GDLM_PLOCK_VERSION_MAJOR;
- info->version[1] = GDLM_PLOCK_VERSION_MINOR;
- info->version[2] = GDLM_PLOCK_VERSION_PATCH;
+ info->version[0] = DLM_PLOCK_VERSION_MAJOR;
+ info->version[1] = DLM_PLOCK_VERSION_MINOR;
+ info->version[2] = DLM_PLOCK_VERSION_PATCH;
}
-static int check_version(struct gdlm_plock_info *info)
+static int check_version(struct dlm_plock_info *info)
{
- if ((GDLM_PLOCK_VERSION_MAJOR != info->version[0]) ||
- (GDLM_PLOCK_VERSION_MINOR < info->version[1])) {
- log_error("plock device version mismatch: "
+ if ((DLM_PLOCK_VERSION_MAJOR != info->version[0]) ||
+ (DLM_PLOCK_VERSION_MINOR < info->version[1])) {
+ log_print("plock device version mismatch: "
"kernel (%u.%u.%u), user (%u.%u.%u)",
- GDLM_PLOCK_VERSION_MAJOR,
- GDLM_PLOCK_VERSION_MINOR,
- GDLM_PLOCK_VERSION_PATCH,
+ DLM_PLOCK_VERSION_MAJOR,
+ DLM_PLOCK_VERSION_MINOR,
+ DLM_PLOCK_VERSION_PATCH,
info->version[0],
info->version[1],
info->version[2]);
@@ -68,25 +70,31 @@
wake_up(&send_wq);
}
-int gdlm_plock(void *lockspace, struct lm_lockname *name,
- struct file *file, int cmd, struct file_lock *fl)
+int dlm_posix_lock(dlm_lockspace_t *lockspace, u64 number, struct file *file,
+ int cmd, struct file_lock *fl)
{
- struct gdlm_ls *ls = lockspace;
+ struct dlm_ls *ls;
struct plock_op *op;
struct plock_xop *xop;
int rv;
+ ls = dlm_find_lockspace_local(lockspace);
+ if (!ls)
+ return -EINVAL;
+
xop = kzalloc(sizeof(*xop), GFP_KERNEL);
- if (!xop)
- return -ENOMEM;
+ if (!xop) {
+ rv = -ENOMEM;
+ goto out;
+ }
op = &xop->xop;
- op->info.optype = GDLM_PLOCK_OP_LOCK;
+ op->info.optype = DLM_PLOCK_OP_LOCK;
op->info.pid = fl->fl_pid;
op->info.ex = (fl->fl_type == F_WRLCK);
op->info.wait = IS_SETLKW(cmd);
- op->info.fsid = ls->id;
- op->info.number = name->ln_number;
+ op->info.fsid = ls->ls_global_id;
+ op->info.number = number;
op->info.start = fl->fl_start;
op->info.end = fl->fl_end;
if (fl->fl_lmops && fl->fl_lmops->fl_grant) {
@@ -107,12 +115,15 @@
if (xop->callback == NULL)
wait_event(recv_wq, (op->done != 0));
- else
- return -EINPROGRESS;
+ else {
+ rv = -EINPROGRESS;
+ goto out;
+ }
spin_lock(&ops_lock);
if (!list_empty(&op->list)) {
- printk(KERN_INFO "plock op on list\n");
+ log_error(ls, "dlm_posix_lock: op on list %llx",
+ (unsigned long long)number);
list_del(&op->list);
}
spin_unlock(&ops_lock);
@@ -121,17 +132,19 @@
if (!rv) {
if (posix_lock_file_wait(file, fl) < 0)
- log_error("gdlm_plock: vfs lock error %x,%llx",
- name->ln_type,
- (unsigned long long)name->ln_number);
+ log_error(ls, "dlm_posix_lock: vfs lock error %llx",
+ (unsigned long long)number);
}
kfree(xop);
+out:
+ dlm_put_lockspace(ls);
return rv;
}
+EXPORT_SYMBOL_GPL(dlm_posix_lock);
/* Returns failure iff a succesful lock operation should be canceled */
-static int gdlm_plock_callback(struct plock_op *op)
+static int dlm_plock_callback(struct plock_op *op)
{
struct file *file;
struct file_lock *fl;
@@ -142,7 +155,8 @@
spin_lock(&ops_lock);
if (!list_empty(&op->list)) {
- printk(KERN_INFO "plock op on list\n");
+ log_print("dlm_plock_callback: op on list %llx",
+ (unsigned long long)op->info.number);
list_del(&op->list);
}
spin_unlock(&ops_lock);
@@ -165,19 +179,19 @@
* This can only happen in the case of kmalloc() failure.
* The filesystem's own lock is the authoritative lock,
* so a failure to get the lock locally is not a disaster.
- * As long as GFS cannot reliably cancel locks (especially
+ * As long as the fs cannot reliably cancel locks (especially
* in a low-memory situation), we're better off ignoring
* this failure than trying to recover.
*/
- log_error("gdlm_plock: vfs lock error file %p fl %p",
- file, fl);
+ log_print("dlm_plock_callback: vfs lock error %llx file %p fl %p",
+ (unsigned long long)op->info.number, file, fl);
}
rv = notify(flc, NULL, 0);
if (rv) {
/* XXX: We need to cancel the fs lock here: */
- printk("gfs2 lock granted after lock request failed;"
- " dangling lock!\n");
+ log_print("dlm_plock_callback: lock granted after lock request "
+ "failed; dangling lock!\n");
goto out;
}
@@ -186,25 +200,31 @@
return rv;
}
-int gdlm_punlock(void *lockspace, struct lm_lockname *name,
- struct file *file, struct file_lock *fl)
+int dlm_posix_unlock(dlm_lockspace_t *lockspace, u64 number, struct file *file,
+ struct file_lock *fl)
{
- struct gdlm_ls *ls = lockspace;
+ struct dlm_ls *ls;
struct plock_op *op;
int rv;
+ ls = dlm_find_lockspace_local(lockspace);
+ if (!ls)
+ return -EINVAL;
+
op = kzalloc(sizeof(*op), GFP_KERNEL);
- if (!op)
- return -ENOMEM;
+ if (!op) {
+ rv = -ENOMEM;
+ goto out;
+ }
if (posix_lock_file_wait(file, fl) < 0)
- log_error("gdlm_punlock: vfs unlock error %x,%llx",
- name->ln_type, (unsigned long long)name->ln_number);
+ log_error(ls, "dlm_posix_unlock: vfs unlock error %llx",
+ (unsigned long long)number);
- op->info.optype = GDLM_PLOCK_OP_UNLOCK;
+ op->info.optype = DLM_PLOCK_OP_UNLOCK;
op->info.pid = fl->fl_pid;
- op->info.fsid = ls->id;
- op->info.number = name->ln_number;
+ op->info.fsid = ls->ls_global_id;
+ op->info.number = number;
op->info.start = fl->fl_start;
op->info.end = fl->fl_end;
if (fl->fl_lmops && fl->fl_lmops->fl_grant)
@@ -217,7 +237,8 @@
spin_lock(&ops_lock);
if (!list_empty(&op->list)) {
- printk(KERN_INFO "punlock op on list\n");
+ log_error(ls, "dlm_posix_unlock: op on list %llx",
+ (unsigned long long)number);
list_del(&op->list);
}
spin_unlock(&ops_lock);
@@ -228,25 +249,34 @@
rv = 0;
kfree(op);
+out:
+ dlm_put_lockspace(ls);
return rv;
}
+EXPORT_SYMBOL_GPL(dlm_posix_unlock);
-int gdlm_plock_get(void *lockspace, struct lm_lockname *name,
- struct file *file, struct file_lock *fl)
+int dlm_posix_get(dlm_lockspace_t *lockspace, u64 number, struct file *file,
+ struct file_lock *fl)
{
- struct gdlm_ls *ls = lockspace;
+ struct dlm_ls *ls;
struct plock_op *op;
int rv;
- op = kzalloc(sizeof(*op), GFP_KERNEL);
- if (!op)
- return -ENOMEM;
+ ls = dlm_find_lockspace_local(lockspace);
+ if (!ls)
+ return -EINVAL;
- op->info.optype = GDLM_PLOCK_OP_GET;
+ op = kzalloc(sizeof(*op), GFP_KERNEL);
+ if (!op) {
+ rv = -ENOMEM;
+ goto out;
+ }
+
+ op->info.optype = DLM_PLOCK_OP_GET;
op->info.pid = fl->fl_pid;
op->info.ex = (fl->fl_type == F_WRLCK);
- op->info.fsid = ls->id;
- op->info.number = name->ln_number;
+ op->info.fsid = ls->ls_global_id;
+ op->info.number = number;
op->info.start = fl->fl_start;
op->info.end = fl->fl_end;
if (fl->fl_lmops && fl->fl_lmops->fl_grant)
@@ -259,7 +289,8 @@
spin_lock(&ops_lock);
if (!list_empty(&op->list)) {
- printk(KERN_INFO "plock_get op on list\n");
+ log_error(ls, "dlm_posix_get: op on list %llx",
+ (unsigned long long)number);
list_del(&op->list);
}
spin_unlock(&ops_lock);
@@ -281,14 +312,17 @@
}
kfree(op);
+out:
+ dlm_put_lockspace(ls);
return rv;
}
+EXPORT_SYMBOL_GPL(dlm_posix_get);
/* a read copies out one plock request from the send list */
static ssize_t dev_read(struct file *file, char __user *u, size_t count,
loff_t *ppos)
{
- struct gdlm_plock_info info;
+ struct dlm_plock_info info;
struct plock_op *op = NULL;
if (count < sizeof(info))
@@ -315,7 +349,7 @@
static ssize_t dev_write(struct file *file, const char __user *u, size_t count,
loff_t *ppos)
{
- struct gdlm_plock_info info;
+ struct dlm_plock_info info;
struct plock_op *op;
int found = 0;
@@ -345,12 +379,12 @@
struct plock_xop *xop;
xop = (struct plock_xop *)op;
if (xop->callback)
- count = gdlm_plock_callback(op);
+ count = dlm_plock_callback(op);
else
wake_up(&recv_wq);
} else
- printk(KERN_INFO "gdlm dev_write no op %x %llx\n", info.fsid,
- (unsigned long long)info.number);
+ log_print("dev_write no op %x %llx", info.fsid,
+ (unsigned long long)info.number);
return count;
}
@@ -377,11 +411,11 @@
static struct miscdevice plock_dev_misc = {
.minor = MISC_DYNAMIC_MINOR,
- .name = GDLM_PLOCK_MISC_NAME,
+ .name = DLM_PLOCK_MISC_NAME,
.fops = &dev_fops
};
-int gdlm_plock_init(void)
+int dlm_plock_init(void)
{
int rv;
@@ -393,14 +427,13 @@
rv = misc_register(&plock_dev_misc);
if (rv)
- printk(KERN_INFO "gdlm_plock_init: misc_register failed %d",
- rv);
+ log_print("dlm_plock_init: misc_register failed %d", rv);
return rv;
}
-void gdlm_plock_exit(void)
+void dlm_plock_exit(void)
{
if (misc_deregister(&plock_dev_misc) < 0)
- printk(KERN_INFO "gdlm_plock_exit: misc_deregister failed");
+ log_print("dlm_plock_exit: misc_deregister failed");
}
diff --git a/fs/dlm/recoverd.c b/fs/dlm/recoverd.c
index 997f953..fd677c8 100644
--- a/fs/dlm/recoverd.c
+++ b/fs/dlm/recoverd.c
@@ -257,6 +257,7 @@
if (rv) {
ls_recover(ls, rv);
kfree(rv->nodeids);
+ kfree(rv->new);
kfree(rv);
}
}
diff --git a/fs/gfs2/locking/dlm/Makefile b/fs/gfs2/locking/dlm/Makefile
index 89b93b6b..2609bb6 100644
--- a/fs/gfs2/locking/dlm/Makefile
+++ b/fs/gfs2/locking/dlm/Makefile
@@ -1,3 +1,3 @@
obj-$(CONFIG_GFS2_FS_LOCKING_DLM) += lock_dlm.o
-lock_dlm-y := lock.o main.o mount.o sysfs.o thread.o plock.o
+lock_dlm-y := lock.o main.o mount.o sysfs.o thread.o
diff --git a/fs/gfs2/locking/dlm/lock_dlm.h b/fs/gfs2/locking/dlm/lock_dlm.h
index 58fcf8c..a243cf6 100644
--- a/fs/gfs2/locking/dlm/lock_dlm.h
+++ b/fs/gfs2/locking/dlm/lock_dlm.h
@@ -25,6 +25,7 @@
#include <net/sock.h>
#include <linux/dlm.h>
+#include <linux/dlm_plock.h>
#include <linux/lm_interface.h>
/*
@@ -173,17 +174,6 @@
int gdlm_hold_lvb(void *, char **);
void gdlm_unhold_lvb(void *, char *);
-/* plock.c */
-
-int gdlm_plock_init(void);
-void gdlm_plock_exit(void);
-int gdlm_plock(void *, struct lm_lockname *, struct file *, int,
- struct file_lock *);
-int gdlm_plock_get(void *, struct lm_lockname *, struct file *,
- struct file_lock *);
-int gdlm_punlock(void *, struct lm_lockname *, struct file *,
- struct file_lock *);
-
/* mount.c */
extern const struct lm_lockops gdlm_ops;
diff --git a/fs/gfs2/locking/dlm/main.c b/fs/gfs2/locking/dlm/main.c
index 36a2258..b9a03a7 100644
--- a/fs/gfs2/locking/dlm/main.c
+++ b/fs/gfs2/locking/dlm/main.c
@@ -28,13 +28,6 @@
return error;
}
- error = gdlm_plock_init();
- if (error) {
- gdlm_sysfs_exit();
- gfs2_unregister_lockproto(&gdlm_ops);
- return error;
- }
-
printk(KERN_INFO
"Lock_DLM (built %s %s) installed\n", __DATE__, __TIME__);
return 0;
@@ -42,7 +35,6 @@
static void __exit exit_lock_dlm(void)
{
- gdlm_plock_exit();
gdlm_sysfs_exit();
gfs2_unregister_lockproto(&gdlm_ops);
}
diff --git a/fs/gfs2/locking/dlm/mount.c b/fs/gfs2/locking/dlm/mount.c
index f2efff4..470bdf6 100644
--- a/fs/gfs2/locking/dlm/mount.c
+++ b/fs/gfs2/locking/dlm/mount.c
@@ -236,6 +236,27 @@
gdlm_kobject_release(ls);
}
+static int gdlm_plock(void *lockspace, struct lm_lockname *name,
+ struct file *file, int cmd, struct file_lock *fl)
+{
+ struct gdlm_ls *ls = lockspace;
+ return dlm_posix_lock(ls->dlm_lockspace, name->ln_number, file, cmd, fl);
+}
+
+static int gdlm_punlock(void *lockspace, struct lm_lockname *name,
+ struct file *file, struct file_lock *fl)
+{
+ struct gdlm_ls *ls = lockspace;
+ return dlm_posix_unlock(ls->dlm_lockspace, name->ln_number, file, fl);
+}
+
+static int gdlm_plock_get(void *lockspace, struct lm_lockname *name,
+ struct file *file, struct file_lock *fl)
+{
+ struct gdlm_ls *ls = lockspace;
+ return dlm_posix_get(ls->dlm_lockspace, name->ln_number, file, fl);
+}
+
const struct lm_lockops gdlm_ops = {
.lm_proto_name = "lock_dlm",
.lm_mount = gdlm_mount,
diff --git a/fs/read_write.c b/fs/read_write.c
index 49a9871..f0d1240 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -33,7 +33,7 @@
loff_t generic_file_llseek(struct file *file, loff_t offset, int origin)
{
- long long retval;
+ loff_t retval;
struct inode *inode = file->f_mapping->host;
mutex_lock(&inode->i_mutex);
@@ -60,7 +60,7 @@
loff_t remote_llseek(struct file *file, loff_t offset, int origin)
{
- long long retval;
+ loff_t retval;
lock_kernel();
switch (origin) {
@@ -91,7 +91,7 @@
loff_t default_llseek(struct file *file, loff_t offset, int origin)
{
- long long retval;
+ loff_t retval;
lock_kernel();
switch (origin) {
diff --git a/fs/seq_file.c b/fs/seq_file.c
index bf2bcfd..cdfd996 100644
--- a/fs/seq_file.c
+++ b/fs/seq_file.c
@@ -247,7 +247,7 @@
loff_t seq_lseek(struct file *file, loff_t offset, int origin)
{
struct seq_file *m = (struct seq_file *)file->private_data;
- long long retval = -EINVAL;
+ loff_t retval = -EINVAL;
mutex_lock(&m->lock);
m->version = file->f_version;
diff --git a/fs/udf/Makefile b/fs/udf/Makefile
index be845e7..0d4503f 100644
--- a/fs/udf/Makefile
+++ b/fs/udf/Makefile
@@ -6,4 +6,4 @@
udf-objs := balloc.o dir.o file.o ialloc.o inode.o lowlevel.o namei.o \
partition.o super.o truncate.o symlink.o fsync.o \
- crc.o directory.o misc.o udftime.o unicode.o
+ directory.o misc.o udftime.o unicode.o
diff --git a/fs/udf/balloc.c b/fs/udf/balloc.c
index f855dcb..1b809bd4 100644
--- a/fs/udf/balloc.c
+++ b/fs/udf/balloc.c
@@ -149,8 +149,7 @@
return false;
lvid = (struct logicalVolIntegrityDesc *)sbi->s_lvid_bh->b_data;
- lvid->freeSpaceTable[partition] = cpu_to_le32(le32_to_cpu(
- lvid->freeSpaceTable[partition]) + cnt);
+ le32_add_cpu(&lvid->freeSpaceTable[partition], cnt);
return true;
}
@@ -589,10 +588,8 @@
sptr = oepos.bh->b_data + epos.offset;
aed = (struct allocExtDesc *)
oepos.bh->b_data;
- aed->lengthAllocDescs =
- cpu_to_le32(le32_to_cpu(
- aed->lengthAllocDescs) +
- adsize);
+ le32_add_cpu(&aed->lengthAllocDescs,
+ adsize);
} else {
sptr = iinfo->i_ext.i_data +
epos.offset;
@@ -645,9 +642,7 @@
mark_inode_dirty(table);
} else {
aed = (struct allocExtDesc *)epos.bh->b_data;
- aed->lengthAllocDescs =
- cpu_to_le32(le32_to_cpu(
- aed->lengthAllocDescs) + adsize);
+ le32_add_cpu(&aed->lengthAllocDescs, adsize);
udf_update_tag(epos.bh->b_data, epos.offset);
mark_buffer_dirty(epos.bh);
}
diff --git a/fs/udf/crc.c b/fs/udf/crc.c
deleted file mode 100644
index b166129..0000000
--- a/fs/udf/crc.c
+++ /dev/null
@@ -1,172 +0,0 @@
-/*
- * crc.c
- *
- * PURPOSE
- * Routines to generate, calculate, and test a 16-bit CRC.
- *
- * DESCRIPTION
- * The CRC code was devised by Don P. Mitchell of AT&T Bell Laboratories
- * and Ned W. Rhodes of Software Systems Group. It has been published in
- * "Design and Validation of Computer Protocols", Prentice Hall,
- * Englewood Cliffs, NJ, 1991, Chapter 3, ISBN 0-13-539925-4.
- *
- * Copyright is held by AT&T.
- *
- * AT&T gives permission for the free use of the CRC source code.
- *
- * COPYRIGHT
- * This file is distributed under the terms of the GNU General Public
- * License (GPL). Copies of the GPL can be obtained from:
- * ftp://prep.ai.mit.edu/pub/gnu/GPL
- * Each contributing author retains all rights to their own work.
- */
-
-#include "udfdecl.h"
-
-static uint16_t crc_table[256] = {
- 0x0000U, 0x1021U, 0x2042U, 0x3063U, 0x4084U, 0x50a5U, 0x60c6U, 0x70e7U,
- 0x8108U, 0x9129U, 0xa14aU, 0xb16bU, 0xc18cU, 0xd1adU, 0xe1ceU, 0xf1efU,
- 0x1231U, 0x0210U, 0x3273U, 0x2252U, 0x52b5U, 0x4294U, 0x72f7U, 0x62d6U,
- 0x9339U, 0x8318U, 0xb37bU, 0xa35aU, 0xd3bdU, 0xc39cU, 0xf3ffU, 0xe3deU,
- 0x2462U, 0x3443U, 0x0420U, 0x1401U, 0x64e6U, 0x74c7U, 0x44a4U, 0x5485U,
- 0xa56aU, 0xb54bU, 0x8528U, 0x9509U, 0xe5eeU, 0xf5cfU, 0xc5acU, 0xd58dU,
- 0x3653U, 0x2672U, 0x1611U, 0x0630U, 0x76d7U, 0x66f6U, 0x5695U, 0x46b4U,
- 0xb75bU, 0xa77aU, 0x9719U, 0x8738U, 0xf7dfU, 0xe7feU, 0xd79dU, 0xc7bcU,
- 0x48c4U, 0x58e5U, 0x6886U, 0x78a7U, 0x0840U, 0x1861U, 0x2802U, 0x3823U,
- 0xc9ccU, 0xd9edU, 0xe98eU, 0xf9afU, 0x8948U, 0x9969U, 0xa90aU, 0xb92bU,
- 0x5af5U, 0x4ad4U, 0x7ab7U, 0x6a96U, 0x1a71U, 0x0a50U, 0x3a33U, 0x2a12U,
- 0xdbfdU, 0xcbdcU, 0xfbbfU, 0xeb9eU, 0x9b79U, 0x8b58U, 0xbb3bU, 0xab1aU,
- 0x6ca6U, 0x7c87U, 0x4ce4U, 0x5cc5U, 0x2c22U, 0x3c03U, 0x0c60U, 0x1c41U,
- 0xedaeU, 0xfd8fU, 0xcdecU, 0xddcdU, 0xad2aU, 0xbd0bU, 0x8d68U, 0x9d49U,
- 0x7e97U, 0x6eb6U, 0x5ed5U, 0x4ef4U, 0x3e13U, 0x2e32U, 0x1e51U, 0x0e70U,
- 0xff9fU, 0xefbeU, 0xdfddU, 0xcffcU, 0xbf1bU, 0xaf3aU, 0x9f59U, 0x8f78U,
- 0x9188U, 0x81a9U, 0xb1caU, 0xa1ebU, 0xd10cU, 0xc12dU, 0xf14eU, 0xe16fU,
- 0x1080U, 0x00a1U, 0x30c2U, 0x20e3U, 0x5004U, 0x4025U, 0x7046U, 0x6067U,
- 0x83b9U, 0x9398U, 0xa3fbU, 0xb3daU, 0xc33dU, 0xd31cU, 0xe37fU, 0xf35eU,
- 0x02b1U, 0x1290U, 0x22f3U, 0x32d2U, 0x4235U, 0x5214U, 0x6277U, 0x7256U,
- 0xb5eaU, 0xa5cbU, 0x95a8U, 0x8589U, 0xf56eU, 0xe54fU, 0xd52cU, 0xc50dU,
- 0x34e2U, 0x24c3U, 0x14a0U, 0x0481U, 0x7466U, 0x6447U, 0x5424U, 0x4405U,
- 0xa7dbU, 0xb7faU, 0x8799U, 0x97b8U, 0xe75fU, 0xf77eU, 0xc71dU, 0xd73cU,
- 0x26d3U, 0x36f2U, 0x0691U, 0x16b0U, 0x6657U, 0x7676U, 0x4615U, 0x5634U,
- 0xd94cU, 0xc96dU, 0xf90eU, 0xe92fU, 0x99c8U, 0x89e9U, 0xb98aU, 0xa9abU,
- 0x5844U, 0x4865U, 0x7806U, 0x6827U, 0x18c0U, 0x08e1U, 0x3882U, 0x28a3U,
- 0xcb7dU, 0xdb5cU, 0xeb3fU, 0xfb1eU, 0x8bf9U, 0x9bd8U, 0xabbbU, 0xbb9aU,
- 0x4a75U, 0x5a54U, 0x6a37U, 0x7a16U, 0x0af1U, 0x1ad0U, 0x2ab3U, 0x3a92U,
- 0xfd2eU, 0xed0fU, 0xdd6cU, 0xcd4dU, 0xbdaaU, 0xad8bU, 0x9de8U, 0x8dc9U,
- 0x7c26U, 0x6c07U, 0x5c64U, 0x4c45U, 0x3ca2U, 0x2c83U, 0x1ce0U, 0x0cc1U,
- 0xef1fU, 0xff3eU, 0xcf5dU, 0xdf7cU, 0xaf9bU, 0xbfbaU, 0x8fd9U, 0x9ff8U,
- 0x6e17U, 0x7e36U, 0x4e55U, 0x5e74U, 0x2e93U, 0x3eb2U, 0x0ed1U, 0x1ef0U
-};
-
-/*
- * udf_crc
- *
- * PURPOSE
- * Calculate a 16-bit CRC checksum using ITU-T V.41 polynomial.
- *
- * DESCRIPTION
- * The OSTA-UDF(tm) 1.50 standard states that using CRCs is mandatory.
- * The polynomial used is: x^16 + x^12 + x^15 + 1
- *
- * PRE-CONDITIONS
- * data Pointer to the data block.
- * size Size of the data block.
- *
- * POST-CONDITIONS
- * <return> CRC of the data block.
- *
- * HISTORY
- * July 21, 1997 - Andrew E. Mileski
- * Adapted from OSTA-UDF(tm) 1.50 standard.
- */
-uint16_t udf_crc(uint8_t *data, uint32_t size, uint16_t crc)
-{
- while (size--)
- crc = crc_table[(crc >> 8 ^ *(data++)) & 0xffU] ^ (crc << 8);
-
- return crc;
-}
-
-/****************************************************************************/
-#if defined(TEST)
-
-/*
- * PURPOSE
- * Test udf_crc()
- *
- * HISTORY
- * July 21, 1997 - Andrew E. Mileski
- * Adapted from OSTA-UDF(tm) 1.50 standard.
- */
-
-unsigned char bytes[] = { 0x70U, 0x6AU, 0x77U };
-
-int main(void)
-{
- unsigned short x;
-
- x = udf_crc(bytes, sizeof bytes);
- printf("udf_crc: calculated = %4.4x, correct = %4.4x\n", x, 0x3299U);
-
- return 0;
-}
-
-#endif /* defined(TEST) */
-
-/****************************************************************************/
-#if defined(GENERATE)
-
-/*
- * PURPOSE
- * Generate a table for fast 16-bit CRC calculations (any polynomial).
- *
- * DESCRIPTION
- * The ITU-T V.41 polynomial is 010041.
- *
- * HISTORY
- * July 21, 1997 - Andrew E. Mileski
- * Adapted from OSTA-UDF(tm) 1.50 standard.
- */
-
-#include <stdio.h>
-
-int main(int argc, char **argv)
-{
- unsigned long crc, poly;
- int n, i;
-
- /* Get the polynomial */
- sscanf(argv[1], "%lo", &poly);
- if (poly & 0xffff0000U) {
- fprintf(stderr, "polynomial is too large\en");
- exit(1);
- }
-
- printf("/* CRC 0%o */\n", poly);
-
- /* Create a table */
- printf("static unsigned short crc_table[256] = {\n");
- for (n = 0; n < 256; n++) {
- if (n % 8 == 0)
- printf("\t");
- crc = n << 8;
- for (i = 0; i < 8; i++) {
- if (crc & 0x8000U)
- crc = (crc << 1) ^ poly;
- else
- crc <<= 1;
- crc &= 0xFFFFU;
- }
- if (n == 255)
- printf("0x%04xU ", crc);
- else
- printf("0x%04xU, ", crc);
- if (n % 8 == 7)
- printf("\n");
- }
- printf("};\n");
-
- return 0;
-}
-
-#endif /* defined(GENERATE) */
diff --git a/fs/udf/dir.c b/fs/udf/dir.c
index 8d8643ada..62dc270 100644
--- a/fs/udf/dir.c
+++ b/fs/udf/dir.c
@@ -39,13 +39,13 @@
static int do_udf_readdir(struct inode *dir, struct file *filp,
filldir_t filldir, void *dirent)
{
- struct udf_fileident_bh fibh;
+ struct udf_fileident_bh fibh = { .sbh = NULL, .ebh = NULL};
struct fileIdentDesc *fi = NULL;
struct fileIdentDesc cfi;
int block, iblock;
loff_t nf_pos = (filp->f_pos - 1) << 2;
int flen;
- char fname[UDF_NAME_LEN];
+ char *fname = NULL;
char *nameptr;
uint16_t liu;
uint8_t lfi;
@@ -54,23 +54,32 @@
kernel_lb_addr eloc;
uint32_t elen;
sector_t offset;
- int i, num;
+ int i, num, ret = 0;
unsigned int dt_type;
struct extent_position epos = { NULL, 0, {0, 0} };
struct udf_inode_info *iinfo;
if (nf_pos >= size)
- return 0;
+ goto out;
+
+ fname = kmalloc(UDF_NAME_LEN, GFP_NOFS);
+ if (!fname) {
+ ret = -ENOMEM;
+ goto out;
+ }
if (nf_pos == 0)
nf_pos = udf_ext0_offset(dir);
fibh.soffset = fibh.eoffset = nf_pos & (dir->i_sb->s_blocksize - 1);
iinfo = UDF_I(dir);
- if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
- fibh.sbh = fibh.ebh = NULL;
- } else if (inode_bmap(dir, nf_pos >> dir->i_sb->s_blocksize_bits,
- &epos, &eloc, &elen, &offset) == (EXT_RECORDED_ALLOCATED >> 30)) {
+ if (iinfo->i_alloc_type != ICBTAG_FLAG_AD_IN_ICB) {
+ if (inode_bmap(dir, nf_pos >> dir->i_sb->s_blocksize_bits,
+ &epos, &eloc, &elen, &offset)
+ != (EXT_RECORDED_ALLOCATED >> 30)) {
+ ret = -ENOENT;
+ goto out;
+ }
block = udf_get_lb_pblock(dir->i_sb, eloc, offset);
if ((++offset << dir->i_sb->s_blocksize_bits) < elen) {
if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
@@ -83,8 +92,8 @@
}
if (!(fibh.sbh = fibh.ebh = udf_tread(dir->i_sb, block))) {
- brelse(epos.bh);
- return -EIO;
+ ret = -EIO;
+ goto out;
}
if (!(offset & ((16 >> (dir->i_sb->s_blocksize_bits - 9)) - 1))) {
@@ -105,9 +114,6 @@
brelse(bha[i]);
}
}
- } else {
- brelse(epos.bh);
- return -ENOENT;
}
while (nf_pos < size) {
@@ -115,13 +121,8 @@
fi = udf_fileident_read(dir, &nf_pos, &fibh, &cfi, &epos, &eloc,
&elen, &offset);
- if (!fi) {
- if (fibh.sbh != fibh.ebh)
- brelse(fibh.ebh);
- brelse(fibh.sbh);
- brelse(epos.bh);
- return 0;
- }
+ if (!fi)
+ goto out;
liu = le16_to_cpu(cfi.lengthOfImpUse);
lfi = cfi.lengthFileIdent;
@@ -167,53 +168,23 @@
dt_type = DT_UNKNOWN;
}
- if (flen) {
- if (filldir(dirent, fname, flen, filp->f_pos, iblock, dt_type) < 0) {
- if (fibh.sbh != fibh.ebh)
- brelse(fibh.ebh);
- brelse(fibh.sbh);
- brelse(epos.bh);
- return 0;
- }
- }
+ if (flen && filldir(dirent, fname, flen, filp->f_pos,
+ iblock, dt_type) < 0)
+ goto out;
} /* end while */
filp->f_pos = (nf_pos >> 2) + 1;
+out:
if (fibh.sbh != fibh.ebh)
brelse(fibh.ebh);
brelse(fibh.sbh);
brelse(epos.bh);
+ kfree(fname);
- return 0;
+ return ret;
}
-/*
- * udf_readdir
- *
- * PURPOSE
- * Read a directory entry.
- *
- * DESCRIPTION
- * Optional - sys_getdents() will return -ENOTDIR if this routine is not
- * available.
- *
- * Refer to sys_getdents() in fs/readdir.c
- * sys_getdents() -> .
- *
- * PRE-CONDITIONS
- * filp Pointer to directory file.
- * buf Pointer to directory entry buffer.
- * filldir Pointer to filldir function.
- *
- * POST-CONDITIONS
- * <return> >=0 on success.
- *
- * HISTORY
- * July 1, 1997 - Andrew E. Mileski
- * Written, tested, and released.
- */
-
static int udf_readdir(struct file *filp, void *dirent, filldir_t filldir)
{
struct inode *dir = filp->f_path.dentry->d_inode;
diff --git a/fs/udf/ecma_167.h b/fs/udf/ecma_167.h
index 5638771..a0974df 100644
--- a/fs/udf/ecma_167.h
+++ b/fs/udf/ecma_167.h
@@ -70,19 +70,6 @@
uint8_t microseconds;
} __attribute__ ((packed)) timestamp;
-typedef struct {
- uint16_t typeAndTimezone;
- int16_t year;
- uint8_t month;
- uint8_t day;
- uint8_t hour;
- uint8_t minute;
- uint8_t second;
- uint8_t centiseconds;
- uint8_t hundredsOfMicroseconds;
- uint8_t microseconds;
-} __attribute__ ((packed)) kernel_timestamp;
-
/* Type and Time Zone (ECMA 167r3 1/7.3.1) */
#define TIMESTAMP_TYPE_MASK 0xF000
#define TIMESTAMP_TYPE_CUT 0x0000
diff --git a/fs/udf/file.c b/fs/udf/file.c
index 97c71ae..0ed6e14 100644
--- a/fs/udf/file.c
+++ b/fs/udf/file.c
@@ -27,7 +27,6 @@
#include "udfdecl.h"
#include <linux/fs.h>
-#include <linux/udf_fs.h>
#include <asm/uaccess.h>
#include <linux/kernel.h>
#include <linux/string.h> /* memset */
@@ -144,40 +143,6 @@
return retval;
}
-/*
- * udf_ioctl
- *
- * PURPOSE
- * Issue an ioctl.
- *
- * DESCRIPTION
- * Optional - sys_ioctl() will return -ENOTTY if this routine is not
- * available, and the ioctl cannot be handled without filesystem help.
- *
- * sys_ioctl() handles these ioctls that apply only to regular files:
- * FIBMAP [requires udf_block_map()], FIGETBSZ, FIONREAD
- * These ioctls are also handled by sys_ioctl():
- * FIOCLEX, FIONCLEX, FIONBIO, FIOASYNC
- * All other ioctls are passed to the filesystem.
- *
- * Refer to sys_ioctl() in fs/ioctl.c
- * sys_ioctl() -> .
- *
- * PRE-CONDITIONS
- * inode Pointer to inode that ioctl was issued on.
- * filp Pointer to file that ioctl was issued on.
- * cmd The ioctl command.
- * arg The ioctl argument [can be interpreted as a
- * user-space pointer if desired].
- *
- * POST-CONDITIONS
- * <return> Success (>=0) or an error code (<=0) that
- * sys_ioctl() will return.
- *
- * HISTORY
- * July 1, 1997 - Andrew E. Mileski
- * Written, tested, and released.
- */
int udf_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
unsigned long arg)
{
@@ -225,18 +190,6 @@
return result;
}
-/*
- * udf_release_file
- *
- * PURPOSE
- * Called when all references to the file are closed
- *
- * DESCRIPTION
- * Discard prealloced blocks
- *
- * HISTORY
- *
- */
static int udf_release_file(struct inode *inode, struct file *filp)
{
if (filp->f_mode & FMODE_WRITE) {
diff --git a/fs/udf/ialloc.c b/fs/udf/ialloc.c
index 84360315..eb9cfa2 100644
--- a/fs/udf/ialloc.c
+++ b/fs/udf/ialloc.c
@@ -21,7 +21,6 @@
#include "udfdecl.h"
#include <linux/fs.h>
#include <linux/quotaops.h>
-#include <linux/udf_fs.h>
#include <linux/sched.h>
#include <linux/slab.h>
@@ -47,11 +46,9 @@
struct logicalVolIntegrityDescImpUse *lvidiu =
udf_sb_lvidiu(sbi);
if (S_ISDIR(inode->i_mode))
- lvidiu->numDirs =
- cpu_to_le32(le32_to_cpu(lvidiu->numDirs) - 1);
+ le32_add_cpu(&lvidiu->numDirs, -1);
else
- lvidiu->numFiles =
- cpu_to_le32(le32_to_cpu(lvidiu->numFiles) - 1);
+ le32_add_cpu(&lvidiu->numFiles, -1);
mark_buffer_dirty(sbi->s_lvid_bh);
}
@@ -105,11 +102,9 @@
lvhd = (struct logicalVolHeaderDesc *)
(lvid->logicalVolContentsUse);
if (S_ISDIR(mode))
- lvidiu->numDirs =
- cpu_to_le32(le32_to_cpu(lvidiu->numDirs) + 1);
+ le32_add_cpu(&lvidiu->numDirs, 1);
else
- lvidiu->numFiles =
- cpu_to_le32(le32_to_cpu(lvidiu->numFiles) + 1);
+ le32_add_cpu(&lvidiu->numFiles, 1);
iinfo->i_unique = uniqueID = le64_to_cpu(lvhd->uniqueID);
if (!(++uniqueID & 0x00000000FFFFFFFFUL))
uniqueID += 16;
diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index 24cfa55..6e74b11 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -37,6 +37,7 @@
#include <linux/buffer_head.h>
#include <linux/writeback.h>
#include <linux/slab.h>
+#include <linux/crc-itu-t.h>
#include "udf_i.h"
#include "udf_sb.h"
@@ -66,22 +67,7 @@
struct extent_position *);
static int udf_get_block(struct inode *, sector_t, struct buffer_head *, int);
-/*
- * udf_delete_inode
- *
- * PURPOSE
- * Clean-up before the specified inode is destroyed.
- *
- * DESCRIPTION
- * This routine is called when the kernel destroys an inode structure
- * ie. when iput() finds i_count == 0.
- *
- * HISTORY
- * July 1, 1997 - Andrew E. Mileski
- * Written, tested, and released.
- *
- * Called at the last iput() if i_nlink is zero.
- */
+
void udf_delete_inode(struct inode *inode)
{
truncate_inode_pages(&inode->i_data, 0);
@@ -323,9 +309,6 @@
lock_kernel();
- if (block < 0)
- goto abort_negative;
-
iinfo = UDF_I(inode);
if (block == iinfo->i_next_alloc_block + 1) {
iinfo->i_next_alloc_block++;
@@ -347,10 +330,6 @@
abort:
unlock_kernel();
return err;
-
-abort_negative:
- udf_warning(inode->i_sb, "udf_get_block", "block < 0");
- goto abort;
}
static struct buffer_head *udf_getblk(struct inode *inode, long block,
@@ -1116,42 +1095,36 @@
fe = (struct fileEntry *)bh->b_data;
if (fe->icbTag.strategyType == cpu_to_le16(4096)) {
- struct buffer_head *ibh = NULL, *nbh = NULL;
- struct indirectEntry *ie;
+ struct buffer_head *ibh;
ibh = udf_read_ptagged(inode->i_sb, iinfo->i_location, 1,
&ident);
- if (ident == TAG_IDENT_IE) {
- if (ibh) {
- kernel_lb_addr loc;
- ie = (struct indirectEntry *)ibh->b_data;
+ if (ident == TAG_IDENT_IE && ibh) {
+ struct buffer_head *nbh = NULL;
+ kernel_lb_addr loc;
+ struct indirectEntry *ie;
- loc = lelb_to_cpu(ie->indirectICB.extLocation);
+ ie = (struct indirectEntry *)ibh->b_data;
+ loc = lelb_to_cpu(ie->indirectICB.extLocation);
- if (ie->indirectICB.extLength &&
- (nbh = udf_read_ptagged(inode->i_sb, loc, 0,
- &ident))) {
- if (ident == TAG_IDENT_FE ||
- ident == TAG_IDENT_EFE) {
- memcpy(&iinfo->i_location,
- &loc,
- sizeof(kernel_lb_addr));
- brelse(bh);
- brelse(ibh);
- brelse(nbh);
- __udf_read_inode(inode);
- return;
- } else {
- brelse(nbh);
- brelse(ibh);
- }
- } else {
+ if (ie->indirectICB.extLength &&
+ (nbh = udf_read_ptagged(inode->i_sb, loc, 0,
+ &ident))) {
+ if (ident == TAG_IDENT_FE ||
+ ident == TAG_IDENT_EFE) {
+ memcpy(&iinfo->i_location,
+ &loc,
+ sizeof(kernel_lb_addr));
+ brelse(bh);
brelse(ibh);
+ brelse(nbh);
+ __udf_read_inode(inode);
+ return;
}
+ brelse(nbh);
}
- } else {
- brelse(ibh);
}
+ brelse(ibh);
} else if (fe->icbTag.strategyType != cpu_to_le16(4)) {
printk(KERN_ERR "udf: unsupported strategy type: %d\n",
le16_to_cpu(fe->icbTag.strategyType));
@@ -1168,8 +1141,6 @@
{
struct fileEntry *fe;
struct extendedFileEntry *efe;
- time_t convtime;
- long convtime_usec;
int offset;
struct udf_sb_info *sbi = UDF_SB(inode->i_sb);
struct udf_inode_info *iinfo = UDF_I(inode);
@@ -1257,29 +1228,15 @@
inode->i_blocks = le64_to_cpu(fe->logicalBlocksRecorded) <<
(inode->i_sb->s_blocksize_bits - 9);
- if (udf_stamp_to_time(&convtime, &convtime_usec,
- lets_to_cpu(fe->accessTime))) {
- inode->i_atime.tv_sec = convtime;
- inode->i_atime.tv_nsec = convtime_usec * 1000;
- } else {
+ if (!udf_disk_stamp_to_time(&inode->i_atime, fe->accessTime))
inode->i_atime = sbi->s_record_time;
- }
- if (udf_stamp_to_time(&convtime, &convtime_usec,
- lets_to_cpu(fe->modificationTime))) {
- inode->i_mtime.tv_sec = convtime;
- inode->i_mtime.tv_nsec = convtime_usec * 1000;
- } else {
+ if (!udf_disk_stamp_to_time(&inode->i_mtime,
+ fe->modificationTime))
inode->i_mtime = sbi->s_record_time;
- }
- if (udf_stamp_to_time(&convtime, &convtime_usec,
- lets_to_cpu(fe->attrTime))) {
- inode->i_ctime.tv_sec = convtime;
- inode->i_ctime.tv_nsec = convtime_usec * 1000;
- } else {
+ if (!udf_disk_stamp_to_time(&inode->i_ctime, fe->attrTime))
inode->i_ctime = sbi->s_record_time;
- }
iinfo->i_unique = le64_to_cpu(fe->uniqueID);
iinfo->i_lenEAttr = le32_to_cpu(fe->lengthExtendedAttr);
@@ -1289,37 +1246,18 @@
inode->i_blocks = le64_to_cpu(efe->logicalBlocksRecorded) <<
(inode->i_sb->s_blocksize_bits - 9);
- if (udf_stamp_to_time(&convtime, &convtime_usec,
- lets_to_cpu(efe->accessTime))) {
- inode->i_atime.tv_sec = convtime;
- inode->i_atime.tv_nsec = convtime_usec * 1000;
- } else {
+ if (!udf_disk_stamp_to_time(&inode->i_atime, efe->accessTime))
inode->i_atime = sbi->s_record_time;
- }
- if (udf_stamp_to_time(&convtime, &convtime_usec,
- lets_to_cpu(efe->modificationTime))) {
- inode->i_mtime.tv_sec = convtime;
- inode->i_mtime.tv_nsec = convtime_usec * 1000;
- } else {
+ if (!udf_disk_stamp_to_time(&inode->i_mtime,
+ efe->modificationTime))
inode->i_mtime = sbi->s_record_time;
- }
- if (udf_stamp_to_time(&convtime, &convtime_usec,
- lets_to_cpu(efe->createTime))) {
- iinfo->i_crtime.tv_sec = convtime;
- iinfo->i_crtime.tv_nsec = convtime_usec * 1000;
- } else {
+ if (!udf_disk_stamp_to_time(&iinfo->i_crtime, efe->createTime))
iinfo->i_crtime = sbi->s_record_time;
- }
- if (udf_stamp_to_time(&convtime, &convtime_usec,
- lets_to_cpu(efe->attrTime))) {
- inode->i_ctime.tv_sec = convtime;
- inode->i_ctime.tv_nsec = convtime_usec * 1000;
- } else {
+ if (!udf_disk_stamp_to_time(&inode->i_ctime, efe->attrTime))
inode->i_ctime = sbi->s_record_time;
- }
iinfo->i_unique = le64_to_cpu(efe->uniqueID);
iinfo->i_lenEAttr = le32_to_cpu(efe->lengthExtendedAttr);
@@ -1338,6 +1276,7 @@
case ICBTAG_FILE_TYPE_REALTIME:
case ICBTAG_FILE_TYPE_REGULAR:
case ICBTAG_FILE_TYPE_UNDEF:
+ case ICBTAG_FILE_TYPE_VAT20:
if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
inode->i_data.a_ops = &udf_adinicb_aops;
else
@@ -1363,6 +1302,15 @@
inode->i_op = &page_symlink_inode_operations;
inode->i_mode = S_IFLNK | S_IRWXUGO;
break;
+ case ICBTAG_FILE_TYPE_MAIN:
+ udf_debug("METADATA FILE-----\n");
+ break;
+ case ICBTAG_FILE_TYPE_MIRROR:
+ udf_debug("METADATA MIRROR FILE-----\n");
+ break;
+ case ICBTAG_FILE_TYPE_BITMAP:
+ udf_debug("METADATA BITMAP FILE-----\n");
+ break;
default:
printk(KERN_ERR "udf: udf_fill_inode(ino %ld) failed unknown "
"file type=%d\n", inode->i_ino,
@@ -1416,21 +1364,6 @@
return mode;
}
-/*
- * udf_write_inode
- *
- * PURPOSE
- * Write out the specified inode.
- *
- * DESCRIPTION
- * This routine is called whenever an inode is synced.
- * Currently this routine is just a placeholder.
- *
- * HISTORY
- * July 1, 1997 - Andrew E. Mileski
- * Written, tested, and released.
- */
-
int udf_write_inode(struct inode *inode, int sync)
{
int ret;
@@ -1455,7 +1388,6 @@
uint32_t udfperms;
uint16_t icbflags;
uint16_t crclen;
- kernel_timestamp cpu_time;
int err = 0;
struct udf_sb_info *sbi = UDF_SB(inode->i_sb);
unsigned char blocksize_bits = inode->i_sb->s_blocksize_bits;
@@ -1488,9 +1420,9 @@
iinfo->i_location.
logicalBlockNum);
use->descTag.descCRCLength = cpu_to_le16(crclen);
- use->descTag.descCRC = cpu_to_le16(udf_crc((char *)use +
- sizeof(tag), crclen,
- 0));
+ use->descTag.descCRC = cpu_to_le16(crc_itu_t(0, (char *)use +
+ sizeof(tag),
+ crclen));
use->descTag.tagChecksum = udf_tag_checksum(&use->descTag);
mark_buffer_dirty(bh);
@@ -1558,12 +1490,9 @@
(inode->i_blocks + (1 << (blocksize_bits - 9)) - 1) >>
(blocksize_bits - 9));
- if (udf_time_to_stamp(&cpu_time, inode->i_atime))
- fe->accessTime = cpu_to_lets(cpu_time);
- if (udf_time_to_stamp(&cpu_time, inode->i_mtime))
- fe->modificationTime = cpu_to_lets(cpu_time);
- if (udf_time_to_stamp(&cpu_time, inode->i_ctime))
- fe->attrTime = cpu_to_lets(cpu_time);
+ udf_time_to_disk_stamp(&fe->accessTime, inode->i_atime);
+ udf_time_to_disk_stamp(&fe->modificationTime, inode->i_mtime);
+ udf_time_to_disk_stamp(&fe->attrTime, inode->i_ctime);
memset(&(fe->impIdent), 0, sizeof(regid));
strcpy(fe->impIdent.ident, UDF_ID_DEVELOPER);
fe->impIdent.identSuffix[0] = UDF_OS_CLASS_UNIX;
@@ -1598,14 +1527,10 @@
iinfo->i_crtime.tv_nsec > inode->i_ctime.tv_nsec))
iinfo->i_crtime = inode->i_ctime;
- if (udf_time_to_stamp(&cpu_time, inode->i_atime))
- efe->accessTime = cpu_to_lets(cpu_time);
- if (udf_time_to_stamp(&cpu_time, inode->i_mtime))
- efe->modificationTime = cpu_to_lets(cpu_time);
- if (udf_time_to_stamp(&cpu_time, iinfo->i_crtime))
- efe->createTime = cpu_to_lets(cpu_time);
- if (udf_time_to_stamp(&cpu_time, inode->i_ctime))
- efe->attrTime = cpu_to_lets(cpu_time);
+ udf_time_to_disk_stamp(&efe->accessTime, inode->i_atime);
+ udf_time_to_disk_stamp(&efe->modificationTime, inode->i_mtime);
+ udf_time_to_disk_stamp(&efe->createTime, iinfo->i_crtime);
+ udf_time_to_disk_stamp(&efe->attrTime, inode->i_ctime);
memset(&(efe->impIdent), 0, sizeof(regid));
strcpy(efe->impIdent.ident, UDF_ID_DEVELOPER);
@@ -1660,8 +1585,8 @@
crclen += iinfo->i_lenEAttr + iinfo->i_lenAlloc -
sizeof(tag);
fe->descTag.descCRCLength = cpu_to_le16(crclen);
- fe->descTag.descCRC = cpu_to_le16(udf_crc((char *)fe + sizeof(tag),
- crclen, 0));
+ fe->descTag.descCRC = cpu_to_le16(crc_itu_t(0, (char *)fe + sizeof(tag),
+ crclen));
fe->descTag.tagChecksum = udf_tag_checksum(&fe->descTag);
/* write the data blocks */
@@ -1778,9 +1703,7 @@
if (epos->bh) {
aed = (struct allocExtDesc *)epos->bh->b_data;
- aed->lengthAllocDescs =
- cpu_to_le32(le32_to_cpu(
- aed->lengthAllocDescs) + adsize);
+ le32_add_cpu(&aed->lengthAllocDescs, adsize);
} else {
iinfo->i_lenAlloc += adsize;
mark_inode_dirty(inode);
@@ -1830,9 +1753,7 @@
mark_inode_dirty(inode);
} else {
aed = (struct allocExtDesc *)epos->bh->b_data;
- aed->lengthAllocDescs =
- cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) +
- adsize);
+ le32_add_cpu(&aed->lengthAllocDescs, adsize);
if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) ||
UDF_SB(inode->i_sb)->s_udfrev >= 0x0201)
udf_update_tag(epos->bh->b_data,
@@ -2046,9 +1967,7 @@
mark_inode_dirty(inode);
} else {
aed = (struct allocExtDesc *)oepos.bh->b_data;
- aed->lengthAllocDescs =
- cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) -
- (2 * adsize));
+ le32_add_cpu(&aed->lengthAllocDescs, -(2 * adsize));
if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) ||
UDF_SB(inode->i_sb)->s_udfrev >= 0x0201)
udf_update_tag(oepos.bh->b_data,
@@ -2065,9 +1984,7 @@
mark_inode_dirty(inode);
} else {
aed = (struct allocExtDesc *)oepos.bh->b_data;
- aed->lengthAllocDescs =
- cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) -
- adsize);
+ le32_add_cpu(&aed->lengthAllocDescs, -adsize);
if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) ||
UDF_SB(inode->i_sb)->s_udfrev >= 0x0201)
udf_update_tag(oepos.bh->b_data,
@@ -2095,11 +2012,6 @@
int8_t etype;
struct udf_inode_info *iinfo;
- if (block < 0) {
- printk(KERN_ERR "udf: inode_bmap: block < 0\n");
- return -1;
- }
-
iinfo = UDF_I(inode);
pos->offset = 0;
pos->block = iinfo->i_location;
diff --git a/fs/udf/lowlevel.c b/fs/udf/lowlevel.c
index 579bae7..703843f 100644
--- a/fs/udf/lowlevel.c
+++ b/fs/udf/lowlevel.c
@@ -23,7 +23,6 @@
#include <linux/cdrom.h>
#include <asm/uaccess.h>
-#include <linux/udf_fs.h>
#include "udf_sb.h"
unsigned int udf_get_last_session(struct super_block *sb)
diff --git a/fs/udf/misc.c b/fs/udf/misc.c
index a1d6da0..84bf0fd 100644
--- a/fs/udf/misc.c
+++ b/fs/udf/misc.c
@@ -23,8 +23,8 @@
#include <linux/fs.h>
#include <linux/string.h>
-#include <linux/udf_fs.h>
#include <linux/buffer_head.h>
+#include <linux/crc-itu-t.h>
#include "udf_i.h"
#include "udf_sb.h"
@@ -136,8 +136,8 @@
/* rewrite CRC + checksum of eahd */
crclen = sizeof(struct extendedAttrHeaderDesc) - sizeof(tag);
eahd->descTag.descCRCLength = cpu_to_le16(crclen);
- eahd->descTag.descCRC = cpu_to_le16(udf_crc((char *)eahd +
- sizeof(tag), crclen, 0));
+ eahd->descTag.descCRC = cpu_to_le16(crc_itu_t(0, (char *)eahd +
+ sizeof(tag), crclen));
eahd->descTag.tagChecksum = udf_tag_checksum(&eahd->descTag);
iinfo->i_lenEAttr += size;
return (struct genericFormat *)&ea[offset];
@@ -204,16 +204,15 @@
{
tag *tag_p;
struct buffer_head *bh = NULL;
- struct udf_sb_info *sbi = UDF_SB(sb);
/* Read the block */
if (block == 0xFFFFFFFF)
return NULL;
- bh = udf_tread(sb, block + sbi->s_session);
+ bh = udf_tread(sb, block);
if (!bh) {
udf_debug("block=%d, location=%d: read failed\n",
- block + sbi->s_session, location);
+ block, location);
return NULL;
}
@@ -223,8 +222,7 @@
if (location != le32_to_cpu(tag_p->tagLocation)) {
udf_debug("location mismatch block %u, tag %u != %u\n",
- block + sbi->s_session,
- le32_to_cpu(tag_p->tagLocation), location);
+ block, le32_to_cpu(tag_p->tagLocation), location);
goto error_out;
}
@@ -244,13 +242,13 @@
/* Verify the descriptor CRC */
if (le16_to_cpu(tag_p->descCRCLength) + sizeof(tag) > sb->s_blocksize ||
- le16_to_cpu(tag_p->descCRC) == udf_crc(bh->b_data + sizeof(tag),
- le16_to_cpu(tag_p->descCRCLength), 0))
+ le16_to_cpu(tag_p->descCRC) == crc_itu_t(0,
+ bh->b_data + sizeof(tag),
+ le16_to_cpu(tag_p->descCRCLength)))
return bh;
- udf_debug("Crc failure block %d: crc = %d, crclen = %d\n",
- block + sbi->s_session, le16_to_cpu(tag_p->descCRC),
- le16_to_cpu(tag_p->descCRCLength));
+ udf_debug("Crc failure block %d: crc = %d, crclen = %d\n", block,
+ le16_to_cpu(tag_p->descCRC), le16_to_cpu(tag_p->descCRCLength));
error_out:
brelse(bh);
@@ -270,7 +268,7 @@
length -= sizeof(tag);
tptr->descCRCLength = cpu_to_le16(length);
- tptr->descCRC = cpu_to_le16(udf_crc(data + sizeof(tag), length, 0));
+ tptr->descCRC = cpu_to_le16(crc_itu_t(0, data + sizeof(tag), length));
tptr->tagChecksum = udf_tag_checksum(tptr);
}
diff --git a/fs/udf/namei.c b/fs/udf/namei.c
index 112a5fb..ba5537d 100644
--- a/fs/udf/namei.c
+++ b/fs/udf/namei.c
@@ -31,6 +31,7 @@
#include <linux/smp_lock.h>
#include <linux/buffer_head.h>
#include <linux/sched.h>
+#include <linux/crc-itu-t.h>
static inline int udf_match(int len1, const char *name1, int len2,
const char *name2)
@@ -97,25 +98,23 @@
memset(fibh->ebh->b_data, 0x00, padlen + offset);
}
- crc = udf_crc((uint8_t *)cfi + sizeof(tag),
- sizeof(struct fileIdentDesc) - sizeof(tag), 0);
+ crc = crc_itu_t(0, (uint8_t *)cfi + sizeof(tag),
+ sizeof(struct fileIdentDesc) - sizeof(tag));
if (fibh->sbh == fibh->ebh) {
- crc = udf_crc((uint8_t *)sfi->impUse,
+ crc = crc_itu_t(crc, (uint8_t *)sfi->impUse,
crclen + sizeof(tag) -
- sizeof(struct fileIdentDesc), crc);
+ sizeof(struct fileIdentDesc));
} else if (sizeof(struct fileIdentDesc) >= -fibh->soffset) {
- crc = udf_crc(fibh->ebh->b_data +
+ crc = crc_itu_t(crc, fibh->ebh->b_data +
sizeof(struct fileIdentDesc) +
fibh->soffset,
crclen + sizeof(tag) -
- sizeof(struct fileIdentDesc),
- crc);
+ sizeof(struct fileIdentDesc));
} else {
- crc = udf_crc((uint8_t *)sfi->impUse,
- -fibh->soffset - sizeof(struct fileIdentDesc),
- crc);
- crc = udf_crc(fibh->ebh->b_data, fibh->eoffset, crc);
+ crc = crc_itu_t(crc, (uint8_t *)sfi->impUse,
+ -fibh->soffset - sizeof(struct fileIdentDesc));
+ crc = crc_itu_t(crc, fibh->ebh->b_data, fibh->eoffset);
}
cfi->descTag.descCRC = cpu_to_le16(crc);
@@ -149,7 +148,7 @@
struct fileIdentDesc *fi = NULL;
loff_t f_pos;
int block, flen;
- char fname[UDF_NAME_LEN];
+ char *fname = NULL;
char *nameptr;
uint8_t lfi;
uint16_t liu;
@@ -163,12 +162,12 @@
size = udf_ext0_offset(dir) + dir->i_size;
f_pos = udf_ext0_offset(dir);
+ fibh->sbh = fibh->ebh = NULL;
fibh->soffset = fibh->eoffset = f_pos & (dir->i_sb->s_blocksize - 1);
- if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
- fibh->sbh = fibh->ebh = NULL;
- else if (inode_bmap(dir, f_pos >> dir->i_sb->s_blocksize_bits,
- &epos, &eloc, &elen, &offset) ==
- (EXT_RECORDED_ALLOCATED >> 30)) {
+ if (dinfo->i_alloc_type != ICBTAG_FLAG_AD_IN_ICB) {
+ if (inode_bmap(dir, f_pos >> dir->i_sb->s_blocksize_bits, &epos,
+ &eloc, &elen, &offset) != (EXT_RECORDED_ALLOCATED >> 30))
+ goto out_err;
block = udf_get_lb_pblock(dir->i_sb, eloc, offset);
if ((++offset << dir->i_sb->s_blocksize_bits) < elen) {
if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
@@ -179,25 +178,19 @@
offset = 0;
fibh->sbh = fibh->ebh = udf_tread(dir->i_sb, block);
- if (!fibh->sbh) {
- brelse(epos.bh);
- return NULL;
- }
- } else {
- brelse(epos.bh);
- return NULL;
+ if (!fibh->sbh)
+ goto out_err;
}
+ fname = kmalloc(UDF_NAME_LEN, GFP_NOFS);
+ if (!fname)
+ goto out_err;
+
while (f_pos < size) {
fi = udf_fileident_read(dir, &f_pos, fibh, cfi, &epos, &eloc,
&elen, &offset);
- if (!fi) {
- if (fibh->sbh != fibh->ebh)
- brelse(fibh->ebh);
- brelse(fibh->sbh);
- brelse(epos.bh);
- return NULL;
- }
+ if (!fi)
+ goto out_err;
liu = le16_to_cpu(cfi->lengthOfImpUse);
lfi = cfi->lengthFileIdent;
@@ -237,53 +230,22 @@
flen = udf_get_filename(dir->i_sb, nameptr, fname, lfi);
if (flen && udf_match(flen, fname, dentry->d_name.len,
- dentry->d_name.name)) {
- brelse(epos.bh);
- return fi;
- }
+ dentry->d_name.name))
+ goto out_ok;
}
+out_err:
+ fi = NULL;
if (fibh->sbh != fibh->ebh)
brelse(fibh->ebh);
brelse(fibh->sbh);
+out_ok:
brelse(epos.bh);
+ kfree(fname);
- return NULL;
+ return fi;
}
-/*
- * udf_lookup
- *
- * PURPOSE
- * Look-up the inode for a given name.
- *
- * DESCRIPTION
- * Required - lookup_dentry() will return -ENOTDIR if this routine is not
- * available for a directory. The filesystem is useless if this routine is
- * not available for at least the filesystem's root directory.
- *
- * This routine is passed an incomplete dentry - it must be completed by
- * calling d_add(dentry, inode). If the name does not exist, then the
- * specified inode must be set to null. An error should only be returned
- * when the lookup fails for a reason other than the name not existing.
- * Note that the directory inode semaphore is held during the call.
- *
- * Refer to lookup_dentry() in fs/namei.c
- * lookup_dentry() -> lookup() -> real_lookup() -> .
- *
- * PRE-CONDITIONS
- * dir Pointer to inode of parent directory.
- * dentry Pointer to dentry to complete.
- * nd Pointer to lookup nameidata
- *
- * POST-CONDITIONS
- * <return> Zero on success.
- *
- * HISTORY
- * July 1, 1997 - Andrew E. Mileski
- * Written, tested, and released.
- */
-
static struct dentry *udf_lookup(struct inode *dir, struct dentry *dentry,
struct nameidata *nd)
{
@@ -336,11 +298,9 @@
{
struct super_block *sb = dir->i_sb;
struct fileIdentDesc *fi = NULL;
- char name[UDF_NAME_LEN], fname[UDF_NAME_LEN];
+ char *name = NULL;
int namelen;
loff_t f_pos;
- int flen;
- char *nameptr;
loff_t size = udf_ext0_offset(dir) + dir->i_size;
int nfidlen;
uint8_t lfi;
@@ -352,16 +312,23 @@
struct extent_position epos = {};
struct udf_inode_info *dinfo;
+ fibh->sbh = fibh->ebh = NULL;
+ name = kmalloc(UDF_NAME_LEN, GFP_NOFS);
+ if (!name) {
+ *err = -ENOMEM;
+ goto out_err;
+ }
+
if (dentry) {
if (!dentry->d_name.len) {
*err = -EINVAL;
- return NULL;
+ goto out_err;
}
namelen = udf_put_filename(sb, dentry->d_name.name, name,
dentry->d_name.len);
if (!namelen) {
*err = -ENAMETOOLONG;
- return NULL;
+ goto out_err;
}
} else {
namelen = 0;
@@ -373,11 +340,14 @@
fibh->soffset = fibh->eoffset = f_pos & (dir->i_sb->s_blocksize - 1);
dinfo = UDF_I(dir);
- if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
- fibh->sbh = fibh->ebh = NULL;
- else if (inode_bmap(dir, f_pos >> dir->i_sb->s_blocksize_bits,
- &epos, &eloc, &elen, &offset) ==
- (EXT_RECORDED_ALLOCATED >> 30)) {
+ if (dinfo->i_alloc_type != ICBTAG_FLAG_AD_IN_ICB) {
+ if (inode_bmap(dir, f_pos >> dir->i_sb->s_blocksize_bits, &epos,
+ &eloc, &elen, &offset) != (EXT_RECORDED_ALLOCATED >> 30)) {
+ block = udf_get_lb_pblock(dir->i_sb,
+ dinfo->i_location, 0);
+ fibh->soffset = fibh->eoffset = sb->s_blocksize;
+ goto add;
+ }
block = udf_get_lb_pblock(dir->i_sb, eloc, offset);
if ((++offset << dir->i_sb->s_blocksize_bits) < elen) {
if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
@@ -389,17 +359,11 @@
fibh->sbh = fibh->ebh = udf_tread(dir->i_sb, block);
if (!fibh->sbh) {
- brelse(epos.bh);
*err = -EIO;
- return NULL;
+ goto out_err;
}
block = dinfo->i_location.logicalBlockNum;
- } else {
- block = udf_get_lb_pblock(dir->i_sb, dinfo->i_location, 0);
- fibh->sbh = fibh->ebh = NULL;
- fibh->soffset = fibh->eoffset = sb->s_blocksize;
- goto add;
}
while (f_pos < size) {
@@ -407,41 +371,16 @@
&elen, &offset);
if (!fi) {
- if (fibh->sbh != fibh->ebh)
- brelse(fibh->ebh);
- brelse(fibh->sbh);
- brelse(epos.bh);
*err = -EIO;
- return NULL;
+ goto out_err;
}
liu = le16_to_cpu(cfi->lengthOfImpUse);
lfi = cfi->lengthFileIdent;
- if (fibh->sbh == fibh->ebh)
- nameptr = fi->fileIdent + liu;
- else {
- int poffset; /* Unpaded ending offset */
-
- poffset = fibh->soffset + sizeof(struct fileIdentDesc) +
- liu + lfi;
-
- if (poffset >= lfi)
- nameptr = (char *)(fibh->ebh->b_data +
- poffset - lfi);
- else {
- nameptr = fname;
- memcpy(nameptr, fi->fileIdent + liu,
- lfi - poffset);
- memcpy(nameptr + lfi - poffset,
- fibh->ebh->b_data, poffset);
- }
- }
-
if ((cfi->fileCharacteristics & FID_FILE_CHAR_DELETED) != 0) {
if (((sizeof(struct fileIdentDesc) +
liu + lfi + 3) & ~3) == nfidlen) {
- brelse(epos.bh);
cfi->descTag.tagSerialNum = cpu_to_le16(1);
cfi->fileVersionNum = cpu_to_le16(1);
cfi->fileCharacteristics = 0;
@@ -449,27 +388,13 @@
cfi->lengthOfImpUse = cpu_to_le16(0);
if (!udf_write_fi(dir, cfi, fi, fibh, NULL,
name))
- return fi;
+ goto out_ok;
else {
*err = -EIO;
- return NULL;
+ goto out_err;
}
}
}
-
- if (!lfi || !dentry)
- continue;
-
- flen = udf_get_filename(dir->i_sb, nameptr, fname, lfi);
- if (flen && udf_match(flen, fname, dentry->d_name.len,
- dentry->d_name.name)) {
- if (fibh->sbh != fibh->ebh)
- brelse(fibh->ebh);
- brelse(fibh->sbh);
- brelse(epos.bh);
- *err = -EEXIST;
- return NULL;
- }
}
add:
@@ -496,7 +421,7 @@
fibh->sbh = fibh->ebh =
udf_expand_dir_adinicb(dir, &block, err);
if (!fibh->sbh)
- return NULL;
+ goto out_err;
epos.block = dinfo->i_location;
epos.offset = udf_file_entry_alloc_offset(dir);
/* Load extent udf_expand_dir_adinicb() has created */
@@ -537,11 +462,8 @@
dir->i_sb->s_blocksize_bits);
fibh->ebh = udf_bread(dir,
f_pos >> dir->i_sb->s_blocksize_bits, 1, err);
- if (!fibh->ebh) {
- brelse(epos.bh);
- brelse(fibh->sbh);
- return NULL;
- }
+ if (!fibh->ebh)
+ goto out_err;
if (!fibh->soffset) {
if (udf_next_aext(dir, &epos, &eloc, &elen, 1) ==
@@ -572,20 +494,25 @@
cfi->lengthFileIdent = namelen;
cfi->lengthOfImpUse = cpu_to_le16(0);
if (!udf_write_fi(dir, cfi, fi, fibh, NULL, name)) {
- brelse(epos.bh);
dir->i_size += nfidlen;
if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
dinfo->i_lenAlloc += nfidlen;
mark_inode_dirty(dir);
- return fi;
+ goto out_ok;
} else {
- brelse(epos.bh);
- if (fibh->sbh != fibh->ebh)
- brelse(fibh->ebh);
- brelse(fibh->sbh);
*err = -EIO;
- return NULL;
+ goto out_err;
}
+
+out_err:
+ fi = NULL;
+ if (fibh->sbh != fibh->ebh)
+ brelse(fibh->ebh);
+ brelse(fibh->sbh);
+out_ok:
+ brelse(epos.bh);
+ kfree(name);
+ return fi;
}
static int udf_delete_entry(struct inode *inode, struct fileIdentDesc *fi,
@@ -940,7 +867,7 @@
char *ea;
int err;
int block;
- char name[UDF_NAME_LEN];
+ char *name = NULL;
int namelen;
struct buffer_head *bh;
struct udf_inode_info *iinfo;
@@ -950,6 +877,12 @@
if (!inode)
goto out;
+ name = kmalloc(UDF_NAME_LEN, GFP_NOFS);
+ if (!name) {
+ err = -ENOMEM;
+ goto out_no_entry;
+ }
+
iinfo = UDF_I(inode);
inode->i_mode = S_IFLNK | S_IRWXUGO;
inode->i_data.a_ops = &udf_symlink_aops;
@@ -1089,6 +1022,7 @@
err = 0;
out:
+ kfree(name);
unlock_kernel();
return err;
diff --git a/fs/udf/partition.c b/fs/udf/partition.c
index fc53334..63610f0 100644
--- a/fs/udf/partition.c
+++ b/fs/udf/partition.c
@@ -24,7 +24,6 @@
#include <linux/fs.h>
#include <linux/string.h>
-#include <linux/udf_fs.h>
#include <linux/slab.h>
#include <linux/buffer_head.h>
@@ -55,11 +54,10 @@
struct udf_sb_info *sbi = UDF_SB(sb);
struct udf_part_map *map;
struct udf_virtual_data *vdata;
- struct udf_inode_info *iinfo;
+ struct udf_inode_info *iinfo = UDF_I(sbi->s_vat_inode);
map = &sbi->s_partmaps[partition];
vdata = &map->s_type_specific.s_virtual;
- index = (sb->s_blocksize - vdata->s_start_offset) / sizeof(uint32_t);
if (block > vdata->s_num_entries) {
udf_debug("Trying to access block beyond end of VAT "
@@ -67,6 +65,12 @@
return 0xFFFFFFFF;
}
+ if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
+ loc = le32_to_cpu(((__le32 *)(iinfo->i_ext.i_data +
+ vdata->s_start_offset))[block]);
+ goto translate;
+ }
+ index = (sb->s_blocksize - vdata->s_start_offset) / sizeof(uint32_t);
if (block >= index) {
block -= index;
newblock = 1 + (block / (sb->s_blocksize / sizeof(uint32_t)));
@@ -89,7 +93,7 @@
brelse(bh);
- iinfo = UDF_I(sbi->s_vat_inode);
+translate:
if (iinfo->i_location.partitionReferenceNum == partition) {
udf_debug("recursive call to udf_get_pblock!\n");
return 0xFFFFFFFF;
@@ -263,3 +267,58 @@
return 0;
}
+
+static uint32_t udf_try_read_meta(struct inode *inode, uint32_t block,
+ uint16_t partition, uint32_t offset)
+{
+ struct super_block *sb = inode->i_sb;
+ struct udf_part_map *map;
+ kernel_lb_addr eloc;
+ uint32_t elen;
+ sector_t ext_offset;
+ struct extent_position epos = {};
+ uint32_t phyblock;
+
+ if (inode_bmap(inode, block, &epos, &eloc, &elen, &ext_offset) !=
+ (EXT_RECORDED_ALLOCATED >> 30))
+ phyblock = 0xFFFFFFFF;
+ else {
+ map = &UDF_SB(sb)->s_partmaps[partition];
+ /* map to sparable/physical partition desc */
+ phyblock = udf_get_pblock(sb, eloc.logicalBlockNum,
+ map->s_partition_num, ext_offset + offset);
+ }
+
+ brelse(epos.bh);
+ return phyblock;
+}
+
+uint32_t udf_get_pblock_meta25(struct super_block *sb, uint32_t block,
+ uint16_t partition, uint32_t offset)
+{
+ struct udf_sb_info *sbi = UDF_SB(sb);
+ struct udf_part_map *map;
+ struct udf_meta_data *mdata;
+ uint32_t retblk;
+ struct inode *inode;
+
+ udf_debug("READING from METADATA\n");
+
+ map = &sbi->s_partmaps[partition];
+ mdata = &map->s_type_specific.s_metadata;
+ inode = mdata->s_metadata_fe ? : mdata->s_mirror_fe;
+
+ /* We shouldn't mount such media... */
+ BUG_ON(!inode);
+ retblk = udf_try_read_meta(inode, block, partition, offset);
+ if (retblk == 0xFFFFFFFF) {
+ udf_warning(sb, __func__, "error reading from METADATA, "
+ "trying to read from MIRROR");
+ inode = mdata->s_mirror_fe;
+ if (!inode)
+ return 0xFFFFFFFF;
+ retblk = udf_try_read_meta(inode, block, partition, offset);
+ }
+
+ return retblk;
+}
diff --git a/fs/udf/super.c b/fs/udf/super.c
index f3ac4ab..b564fc1 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -55,9 +55,10 @@
#include <linux/errno.h>
#include <linux/mount.h>
#include <linux/seq_file.h>
+#include <linux/bitmap.h>
+#include <linux/crc-itu-t.h>
#include <asm/byteorder.h>
-#include <linux/udf_fs.h>
#include "udf_sb.h"
#include "udf_i.h"
@@ -84,22 +85,19 @@
static int udf_remount_fs(struct super_block *, int *, char *);
static int udf_check_valid(struct super_block *, int, int);
static int udf_vrs(struct super_block *sb, int silent);
-static int udf_load_partition(struct super_block *, kernel_lb_addr *);
-static int udf_load_logicalvol(struct super_block *, struct buffer_head *,
- kernel_lb_addr *);
static void udf_load_logicalvolint(struct super_block *, kernel_extent_ad);
static void udf_find_anchor(struct super_block *);
static int udf_find_fileset(struct super_block *, kernel_lb_addr *,
kernel_lb_addr *);
-static void udf_load_pvoldesc(struct super_block *, struct buffer_head *);
static void udf_load_fileset(struct super_block *, struct buffer_head *,
kernel_lb_addr *);
-static int udf_load_partdesc(struct super_block *, struct buffer_head *);
static void udf_open_lvid(struct super_block *);
static void udf_close_lvid(struct super_block *);
static unsigned int udf_count_free(struct super_block *);
static int udf_statfs(struct dentry *, struct kstatfs *);
static int udf_show_options(struct seq_file *, struct vfsmount *);
+static void udf_error(struct super_block *sb, const char *function,
+ const char *fmt, ...);
struct logicalVolIntegrityDescImpUse *udf_sb_lvidiu(struct udf_sb_info *sbi)
{
@@ -587,48 +585,10 @@
return 0;
}
-/*
- * udf_set_blocksize
- *
- * PURPOSE
- * Set the block size to be used in all transfers.
- *
- * DESCRIPTION
- * To allow room for a DMA transfer, it is best to guess big when unsure.
- * This routine picks 2048 bytes as the blocksize when guessing. This
- * should be adequate until devices with larger block sizes become common.
- *
- * Note that the Linux kernel can currently only deal with blocksizes of
- * 512, 1024, 2048, 4096, and 8192 bytes.
- *
- * PRE-CONDITIONS
- * sb Pointer to _locked_ superblock.
- *
- * POST-CONDITIONS
- * sb->s_blocksize Blocksize.
- * sb->s_blocksize_bits log2 of blocksize.
- * <return> 0 Blocksize is valid.
- * <return> 1 Blocksize is invalid.
- *
- * HISTORY
- * July 1, 1997 - Andrew E. Mileski
- * Written, tested, and released.
- */
-static int udf_set_blocksize(struct super_block *sb, int bsize)
-{
- if (!sb_min_blocksize(sb, bsize)) {
- udf_debug("Bad block size (%d)\n", bsize);
- printk(KERN_ERR "udf: bad block size (%d)\n", bsize);
- return 0;
- }
-
- return sb->s_blocksize;
-}
-
static int udf_vrs(struct super_block *sb, int silent)
{
struct volStructDesc *vsd = NULL;
- int sector = 32768;
+ loff_t sector = 32768;
int sectorsize;
struct buffer_head *bh = NULL;
int iso9660 = 0;
@@ -649,7 +609,8 @@
sector += (sbi->s_session << sb->s_blocksize_bits);
udf_debug("Starting at sector %u (%ld byte sectors)\n",
- (sector >> sb->s_blocksize_bits), sb->s_blocksize);
+ (unsigned int)(sector >> sb->s_blocksize_bits),
+ sb->s_blocksize);
/* Process the sequence (if applicable) */
for (; !nsr02 && !nsr03; sector += sectorsize) {
/* Read a block */
@@ -719,162 +680,140 @@
}
/*
- * udf_find_anchor
+ * Check whether there is an anchor block in the given block
+ */
+static int udf_check_anchor_block(struct super_block *sb, sector_t block,
+ bool varconv)
+{
+ struct buffer_head *bh = NULL;
+ tag *t;
+ uint16_t ident;
+ uint32_t location;
+
+ if (varconv) {
+ if (udf_fixed_to_variable(block) >=
+ sb->s_bdev->bd_inode->i_size >> sb->s_blocksize_bits)
+ return 0;
+ bh = sb_bread(sb, udf_fixed_to_variable(block));
+ }
+ else
+ bh = sb_bread(sb, block);
+
+ if (!bh)
+ return 0;
+
+ t = (tag *)bh->b_data;
+ ident = le16_to_cpu(t->tagIdent);
+ location = le32_to_cpu(t->tagLocation);
+ brelse(bh);
+ if (ident != TAG_IDENT_AVDP)
+ return 0;
+ return location == block;
+}
+
+/* Search for an anchor volume descriptor pointer */
+static sector_t udf_scan_anchors(struct super_block *sb, bool varconv,
+ sector_t lastblock)
+{
+ sector_t last[6];
+ int i;
+ struct udf_sb_info *sbi = UDF_SB(sb);
+
+ last[0] = lastblock;
+ last[1] = last[0] - 1;
+ last[2] = last[0] + 1;
+ last[3] = last[0] - 2;
+ last[4] = last[0] - 150;
+ last[5] = last[0] - 152;
+
+ /* according to spec, anchor is in either:
+ * block 256
+ * lastblock-256
+ * lastblock
+ * however, if the disc isn't closed, it could be 512 */
+
+ for (i = 0; i < ARRAY_SIZE(last); i++) {
+ if (last[i] < 0)
+ continue;
+ if (last[i] >= sb->s_bdev->bd_inode->i_size >>
+ sb->s_blocksize_bits)
+ continue;
+
+ if (udf_check_anchor_block(sb, last[i], varconv)) {
+ sbi->s_anchor[0] = last[i];
+ sbi->s_anchor[1] = last[i] - 256;
+ return last[i];
+ }
+
+ if (last[i] < 256)
+ continue;
+
+ if (udf_check_anchor_block(sb, last[i] - 256, varconv)) {
+ sbi->s_anchor[1] = last[i] - 256;
+ return last[i];
+ }
+ }
+
+ if (udf_check_anchor_block(sb, sbi->s_session + 256, varconv)) {
+ sbi->s_anchor[0] = sbi->s_session + 256;
+ return last[0];
+ }
+ if (udf_check_anchor_block(sb, sbi->s_session + 512, varconv)) {
+ sbi->s_anchor[0] = sbi->s_session + 512;
+ return last[0];
+ }
+ return 0;
+}
+
+/*
+ * Find an anchor volume descriptor. The function expects sbi->s_lastblock to
+ * be the last block on the media.
*
- * PURPOSE
- * Find an anchor volume descriptor.
+ * Return 1 if not found, 0 if ok
*
- * PRE-CONDITIONS
- * sb Pointer to _locked_ superblock.
- * lastblock Last block on media.
- *
- * POST-CONDITIONS
- * <return> 1 if not found, 0 if ok
- *
- * HISTORY
- * July 1, 1997 - Andrew E. Mileski
- * Written, tested, and released.
*/
static void udf_find_anchor(struct super_block *sb)
{
- int lastblock;
+ sector_t lastblock;
struct buffer_head *bh = NULL;
uint16_t ident;
- uint32_t location;
int i;
- struct udf_sb_info *sbi;
+ struct udf_sb_info *sbi = UDF_SB(sb);
- sbi = UDF_SB(sb);
- lastblock = sbi->s_last_block;
+ lastblock = udf_scan_anchors(sb, 0, sbi->s_last_block);
+ if (lastblock)
+ goto check_anchor;
+ /* No anchor found? Try VARCONV conversion of block numbers */
+ /* Firstly, we try to not convert number of the last block */
+ lastblock = udf_scan_anchors(sb, 1,
+ udf_variable_to_fixed(sbi->s_last_block));
if (lastblock) {
- int varlastblock = udf_variable_to_fixed(lastblock);
- int last[] = { lastblock, lastblock - 2,
- lastblock - 150, lastblock - 152,
- varlastblock, varlastblock - 2,
- varlastblock - 150, varlastblock - 152 };
-
- lastblock = 0;
-
- /* Search for an anchor volume descriptor pointer */
-
- /* according to spec, anchor is in either:
- * block 256
- * lastblock-256
- * lastblock
- * however, if the disc isn't closed, it could be 512 */
-
- for (i = 0; !lastblock && i < ARRAY_SIZE(last); i++) {
- ident = location = 0;
- if (last[i] >= 0) {
- bh = sb_bread(sb, last[i]);
- if (bh) {
- tag *t = (tag *)bh->b_data;
- ident = le16_to_cpu(t->tagIdent);
- location = le32_to_cpu(t->tagLocation);
- brelse(bh);
- }
- }
-
- if (ident == TAG_IDENT_AVDP) {
- if (location == last[i] - sbi->s_session) {
- lastblock = last[i] - sbi->s_session;
- sbi->s_anchor[0] = lastblock;
- sbi->s_anchor[1] = lastblock - 256;
- } else if (location ==
- udf_variable_to_fixed(last[i]) -
- sbi->s_session) {
- UDF_SET_FLAG(sb, UDF_FLAG_VARCONV);
- lastblock =
- udf_variable_to_fixed(last[i]) -
- sbi->s_session;
- sbi->s_anchor[0] = lastblock;
- sbi->s_anchor[1] = lastblock - 256 -
- sbi->s_session;
- } else {
- udf_debug("Anchor found at block %d, "
- "location mismatch %d.\n",
- last[i], location);
- }
- } else if (ident == TAG_IDENT_FE ||
- ident == TAG_IDENT_EFE) {
- lastblock = last[i];
- sbi->s_anchor[3] = 512;
- } else {
- ident = location = 0;
- if (last[i] >= 256) {
- bh = sb_bread(sb, last[i] - 256);
- if (bh) {
- tag *t = (tag *)bh->b_data;
- ident = le16_to_cpu(
- t->tagIdent);
- location = le32_to_cpu(
- t->tagLocation);
- brelse(bh);
- }
- }
-
- if (ident == TAG_IDENT_AVDP &&
- location == last[i] - 256 -
- sbi->s_session) {
- lastblock = last[i];
- sbi->s_anchor[1] = last[i] - 256;
- } else {
- ident = location = 0;
- if (last[i] >= 312 + sbi->s_session) {
- bh = sb_bread(sb,
- last[i] - 312 -
- sbi->s_session);
- if (bh) {
- tag *t = (tag *)
- bh->b_data;
- ident = le16_to_cpu(
- t->tagIdent);
- location = le32_to_cpu(
- t->tagLocation);
- brelse(bh);
- }
- }
-
- if (ident == TAG_IDENT_AVDP &&
- location == udf_variable_to_fixed(last[i]) - 256) {
- UDF_SET_FLAG(sb,
- UDF_FLAG_VARCONV);
- lastblock = udf_variable_to_fixed(last[i]);
- sbi->s_anchor[1] = lastblock - 256;
- }
- }
- }
- }
+ UDF_SET_FLAG(sb, UDF_FLAG_VARCONV);
+ goto check_anchor;
}
- if (!lastblock) {
- /* We haven't found the lastblock. check 312 */
- bh = sb_bread(sb, 312 + sbi->s_session);
- if (bh) {
- tag *t = (tag *)bh->b_data;
- ident = le16_to_cpu(t->tagIdent);
- location = le32_to_cpu(t->tagLocation);
- brelse(bh);
+ /* Secondly, we try with converted number of the last block */
+ lastblock = udf_scan_anchors(sb, 1, sbi->s_last_block);
+ if (lastblock)
+ UDF_SET_FLAG(sb, UDF_FLAG_VARCONV);
- if (ident == TAG_IDENT_AVDP && location == 256)
- UDF_SET_FLAG(sb, UDF_FLAG_VARCONV);
- }
- }
-
+check_anchor:
+ /*
+ * Check located anchors and the anchor block supplied via
+ * mount options
+ */
for (i = 0; i < ARRAY_SIZE(sbi->s_anchor); i++) {
- if (sbi->s_anchor[i]) {
- bh = udf_read_tagged(sb, sbi->s_anchor[i],
- sbi->s_anchor[i], &ident);
- if (!bh)
+ if (!sbi->s_anchor[i])
+ continue;
+ bh = udf_read_tagged(sb, sbi->s_anchor[i],
+ sbi->s_anchor[i], &ident);
+ if (!bh)
+ sbi->s_anchor[i] = 0;
+ else {
+ brelse(bh);
+ if (ident != TAG_IDENT_AVDP)
sbi->s_anchor[i] = 0;
- else {
- brelse(bh);
- if ((ident != TAG_IDENT_AVDP) &&
- (i || (ident != TAG_IDENT_FE &&
- ident != TAG_IDENT_EFE)))
- sbi->s_anchor[i] = 0;
- }
}
}
@@ -971,27 +910,30 @@
return 1;
}
-static void udf_load_pvoldesc(struct super_block *sb, struct buffer_head *bh)
+static int udf_load_pvoldesc(struct super_block *sb, sector_t block)
{
struct primaryVolDesc *pvoldesc;
- time_t recording;
- long recording_usec;
struct ustr instr;
struct ustr outstr;
+ struct buffer_head *bh;
+ uint16_t ident;
+
+ bh = udf_read_tagged(sb, block, block, &ident);
+ if (!bh)
+ return 1;
+ BUG_ON(ident != TAG_IDENT_PVD);
pvoldesc = (struct primaryVolDesc *)bh->b_data;
- if (udf_stamp_to_time(&recording, &recording_usec,
- lets_to_cpu(pvoldesc->recordingDateAndTime))) {
- kernel_timestamp ts;
- ts = lets_to_cpu(pvoldesc->recordingDateAndTime);
- udf_debug("recording time %ld/%ld, %04u/%02u/%02u"
+ if (udf_disk_stamp_to_time(&UDF_SB(sb)->s_record_time,
+ pvoldesc->recordingDateAndTime)) {
+#ifdef UDFFS_DEBUG
+ timestamp *ts = &pvoldesc->recordingDateAndTime;
+ udf_debug("recording time %04u/%02u/%02u"
" %02u:%02u (%x)\n",
- recording, recording_usec,
- ts.year, ts.month, ts.day, ts.hour,
- ts.minute, ts.typeAndTimezone);
- UDF_SB(sb)->s_record_time.tv_sec = recording;
- UDF_SB(sb)->s_record_time.tv_nsec = recording_usec * 1000;
+ le16_to_cpu(ts->year), ts->month, ts->day, ts->hour,
+ ts->minute, le16_to_cpu(ts->typeAndTimezone));
+#endif
}
if (!udf_build_ustr(&instr, pvoldesc->volIdent, 32))
@@ -1005,6 +947,104 @@
if (!udf_build_ustr(&instr, pvoldesc->volSetIdent, 128))
if (udf_CS0toUTF8(&outstr, &instr))
udf_debug("volSetIdent[] = '%s'\n", outstr.u_name);
+
+ brelse(bh);
+ return 0;
+}
+
+static int udf_load_metadata_files(struct super_block *sb, int partition)
+{
+ struct udf_sb_info *sbi = UDF_SB(sb);
+ struct udf_part_map *map;
+ struct udf_meta_data *mdata;
+ kernel_lb_addr addr;
+ int fe_error = 0;
+
+ map = &sbi->s_partmaps[partition];
+ mdata = &map->s_type_specific.s_metadata;
+
+ /* metadata address */
+ addr.logicalBlockNum = mdata->s_meta_file_loc;
+ addr.partitionReferenceNum = map->s_partition_num;
+
+ udf_debug("Metadata file location: block = %d part = %d\n",
+ addr.logicalBlockNum, addr.partitionReferenceNum);
+
+ mdata->s_metadata_fe = udf_iget(sb, addr);
+
+ if (mdata->s_metadata_fe == NULL) {
+ udf_warning(sb, __func__, "metadata inode efe not found, "
+ "will try mirror inode.");
+ fe_error = 1;
+ } else if (UDF_I(mdata->s_metadata_fe)->i_alloc_type !=
+ ICBTAG_FLAG_AD_SHORT) {
+ udf_warning(sb, __func__, "metadata inode efe does not have "
+ "short allocation descriptors!");
+ fe_error = 1;
+ iput(mdata->s_metadata_fe);
+ mdata->s_metadata_fe = NULL;
+ }
+
+ /* mirror file entry */
+ addr.logicalBlockNum = mdata->s_mirror_file_loc;
+ addr.partitionReferenceNum = map->s_partition_num;
+
+ udf_debug("Mirror metadata file location: block = %d part = %d\n",
+ addr.logicalBlockNum, addr.partitionReferenceNum);
+
+ mdata->s_mirror_fe = udf_iget(sb, addr);
+
+ if (mdata->s_mirror_fe == NULL) {
+ if (fe_error) {
+ udf_error(sb, __func__, "mirror inode efe not found "
+ "and metadata inode is missing too, exiting...");
+ goto error_exit;
+ } else
+ udf_warning(sb, __func__, "mirror inode efe not found,"
+ " but metadata inode is OK");
+ } else if (UDF_I(mdata->s_mirror_fe)->i_alloc_type !=
+ ICBTAG_FLAG_AD_SHORT) {
+ udf_warning(sb, __func__, "mirror inode efe does not have "
+ "short allocation descriptors!");
+ iput(mdata->s_mirror_fe);
+ mdata->s_mirror_fe = NULL;
+ if (fe_error)
+ goto error_exit;
+ }
+
+ /*
+ * bitmap file entry
+ * Note:
+ * Load only if bitmap file location differs from 0xFFFFFFFF (DCN-5102)
+ */
+ if (mdata->s_bitmap_file_loc != 0xFFFFFFFF) {
+ addr.logicalBlockNum = mdata->s_bitmap_file_loc;
+ addr.partitionReferenceNum = map->s_partition_num;
+
+ udf_debug("Bitmap file location: block = %d part = %d\n",
+ addr.logicalBlockNum, addr.partitionReferenceNum);
+
+ mdata->s_bitmap_fe = udf_iget(sb, addr);
+
+ if (mdata->s_bitmap_fe == NULL) {
+ if (sb->s_flags & MS_RDONLY)
+ udf_warning(sb, __func__, "bitmap inode efe "
+ "not found but it's ok since the disc"
+ " is mounted read-only");
+ else {
+ udf_error(sb, __func__, "bitmap inode efe not "
+ "found and attempted read-write mount");
+ goto error_exit;
+ }
+ }
+ }
+
+ udf_debug("udf_load_metadata_files Ok\n");
+
+ return 0;
+
+error_exit:
+ return 1;
}
static void udf_load_fileset(struct super_block *sb, struct buffer_head *bh,
@@ -1025,10 +1065,9 @@
int udf_compute_nr_groups(struct super_block *sb, u32 partition)
{
struct udf_part_map *map = &UDF_SB(sb)->s_partmaps[partition];
- return (map->s_partition_len +
- (sizeof(struct spaceBitmapDesc) << 3) +
- (sb->s_blocksize * 8) - 1) /
- (sb->s_blocksize * 8);
+ return DIV_ROUND_UP(map->s_partition_len +
+ (sizeof(struct spaceBitmapDesc) << 3),
+ sb->s_blocksize * 8);
}
static struct udf_bitmap *udf_sb_alloc_bitmap(struct super_block *sb, u32 index)
@@ -1059,134 +1098,241 @@
return bitmap;
}
-static int udf_load_partdesc(struct super_block *sb, struct buffer_head *bh)
+static int udf_fill_partdesc_info(struct super_block *sb,
+ struct partitionDesc *p, int p_index)
{
- struct partitionDesc *p;
- int i;
struct udf_part_map *map;
- struct udf_sb_info *sbi;
+ struct udf_sb_info *sbi = UDF_SB(sb);
+ struct partitionHeaderDesc *phd;
- p = (struct partitionDesc *)bh->b_data;
- sbi = UDF_SB(sb);
+ map = &sbi->s_partmaps[p_index];
- for (i = 0; i < sbi->s_partitions; i++) {
- map = &sbi->s_partmaps[i];
- udf_debug("Searching map: (%d == %d)\n",
- map->s_partition_num,
- le16_to_cpu(p->partitionNumber));
- if (map->s_partition_num ==
- le16_to_cpu(p->partitionNumber)) {
- map->s_partition_len =
- le32_to_cpu(p->partitionLength); /* blocks */
- map->s_partition_root =
- le32_to_cpu(p->partitionStartingLocation);
- if (p->accessType ==
- cpu_to_le32(PD_ACCESS_TYPE_READ_ONLY))
- map->s_partition_flags |=
- UDF_PART_FLAG_READ_ONLY;
- if (p->accessType ==
- cpu_to_le32(PD_ACCESS_TYPE_WRITE_ONCE))
- map->s_partition_flags |=
- UDF_PART_FLAG_WRITE_ONCE;
- if (p->accessType ==
- cpu_to_le32(PD_ACCESS_TYPE_REWRITABLE))
- map->s_partition_flags |=
- UDF_PART_FLAG_REWRITABLE;
- if (p->accessType ==
- cpu_to_le32(PD_ACCESS_TYPE_OVERWRITABLE))
- map->s_partition_flags |=
- UDF_PART_FLAG_OVERWRITABLE;
+ map->s_partition_len = le32_to_cpu(p->partitionLength); /* blocks */
+ map->s_partition_root = le32_to_cpu(p->partitionStartingLocation);
- if (!strcmp(p->partitionContents.ident,
- PD_PARTITION_CONTENTS_NSR02) ||
- !strcmp(p->partitionContents.ident,
- PD_PARTITION_CONTENTS_NSR03)) {
- struct partitionHeaderDesc *phd;
+ if (p->accessType == cpu_to_le32(PD_ACCESS_TYPE_READ_ONLY))
+ map->s_partition_flags |= UDF_PART_FLAG_READ_ONLY;
+ if (p->accessType == cpu_to_le32(PD_ACCESS_TYPE_WRITE_ONCE))
+ map->s_partition_flags |= UDF_PART_FLAG_WRITE_ONCE;
+ if (p->accessType == cpu_to_le32(PD_ACCESS_TYPE_REWRITABLE))
+ map->s_partition_flags |= UDF_PART_FLAG_REWRITABLE;
+ if (p->accessType == cpu_to_le32(PD_ACCESS_TYPE_OVERWRITABLE))
+ map->s_partition_flags |= UDF_PART_FLAG_OVERWRITABLE;
- phd = (struct partitionHeaderDesc *)
- (p->partitionContentsUse);
- if (phd->unallocSpaceTable.extLength) {
- kernel_lb_addr loc = {
- .logicalBlockNum = le32_to_cpu(phd->unallocSpaceTable.extPosition),
- .partitionReferenceNum = i,
- };
+ udf_debug("Partition (%d type %x) starts at physical %d, "
+ "block length %d\n", p_index,
+ map->s_partition_type, map->s_partition_root,
+ map->s_partition_len);
- map->s_uspace.s_table =
- udf_iget(sb, loc);
- if (!map->s_uspace.s_table) {
- udf_debug("cannot load unallocSpaceTable (part %d)\n", i);
- return 1;
- }
- map->s_partition_flags |=
- UDF_PART_FLAG_UNALLOC_TABLE;
- udf_debug("unallocSpaceTable (part %d) @ %ld\n",
- i, map->s_uspace.s_table->i_ino);
- }
- if (phd->unallocSpaceBitmap.extLength) {
- struct udf_bitmap *bitmap =
- udf_sb_alloc_bitmap(sb, i);
- map->s_uspace.s_bitmap = bitmap;
- if (bitmap != NULL) {
- bitmap->s_extLength =
- le32_to_cpu(phd->unallocSpaceBitmap.extLength);
- bitmap->s_extPosition =
- le32_to_cpu(phd->unallocSpaceBitmap.extPosition);
- map->s_partition_flags |= UDF_PART_FLAG_UNALLOC_BITMAP;
- udf_debug("unallocSpaceBitmap (part %d) @ %d\n",
- i, bitmap->s_extPosition);
- }
- }
- if (phd->partitionIntegrityTable.extLength)
- udf_debug("partitionIntegrityTable (part %d)\n", i);
- if (phd->freedSpaceTable.extLength) {
- kernel_lb_addr loc = {
- .logicalBlockNum = le32_to_cpu(phd->freedSpaceTable.extPosition),
- .partitionReferenceNum = i,
- };
+ if (strcmp(p->partitionContents.ident, PD_PARTITION_CONTENTS_NSR02) &&
+ strcmp(p->partitionContents.ident, PD_PARTITION_CONTENTS_NSR03))
+ return 0;
- map->s_fspace.s_table =
- udf_iget(sb, loc);
- if (!map->s_fspace.s_table) {
- udf_debug("cannot load freedSpaceTable (part %d)\n", i);
- return 1;
- }
- map->s_partition_flags |=
- UDF_PART_FLAG_FREED_TABLE;
- udf_debug("freedSpaceTable (part %d) @ %ld\n",
- i, map->s_fspace.s_table->i_ino);
- }
- if (phd->freedSpaceBitmap.extLength) {
- struct udf_bitmap *bitmap =
- udf_sb_alloc_bitmap(sb, i);
- map->s_fspace.s_bitmap = bitmap;
- if (bitmap != NULL) {
- bitmap->s_extLength =
- le32_to_cpu(phd->freedSpaceBitmap.extLength);
- bitmap->s_extPosition =
- le32_to_cpu(phd->freedSpaceBitmap.extPosition);
- map->s_partition_flags |= UDF_PART_FLAG_FREED_BITMAP;
- udf_debug("freedSpaceBitmap (part %d) @ %d\n",
- i, bitmap->s_extPosition);
- }
- }
- }
- break;
+ phd = (struct partitionHeaderDesc *)p->partitionContentsUse;
+ if (phd->unallocSpaceTable.extLength) {
+ kernel_lb_addr loc = {
+ .logicalBlockNum = le32_to_cpu(
+ phd->unallocSpaceTable.extPosition),
+ .partitionReferenceNum = p_index,
+ };
+
+ map->s_uspace.s_table = udf_iget(sb, loc);
+ if (!map->s_uspace.s_table) {
+ udf_debug("cannot load unallocSpaceTable (part %d)\n",
+ p_index);
+ return 1;
}
+ map->s_partition_flags |= UDF_PART_FLAG_UNALLOC_TABLE;
+ udf_debug("unallocSpaceTable (part %d) @ %ld\n",
+ p_index, map->s_uspace.s_table->i_ino);
}
- if (i == sbi->s_partitions)
- udf_debug("Partition (%d) not found in partition map\n",
- le16_to_cpu(p->partitionNumber));
- else
- udf_debug("Partition (%d:%d type %x) starts at physical %d, "
- "block length %d\n",
- le16_to_cpu(p->partitionNumber), i,
- map->s_partition_type,
- map->s_partition_root,
- map->s_partition_len);
+
+ if (phd->unallocSpaceBitmap.extLength) {
+ struct udf_bitmap *bitmap = udf_sb_alloc_bitmap(sb, p_index);
+ if (!bitmap)
+ return 1;
+ map->s_uspace.s_bitmap = bitmap;
+ bitmap->s_extLength = le32_to_cpu(
+ phd->unallocSpaceBitmap.extLength);
+ bitmap->s_extPosition = le32_to_cpu(
+ phd->unallocSpaceBitmap.extPosition);
+ map->s_partition_flags |= UDF_PART_FLAG_UNALLOC_BITMAP;
+ udf_debug("unallocSpaceBitmap (part %d) @ %d\n", p_index,
+ bitmap->s_extPosition);
+ }
+
+ if (phd->partitionIntegrityTable.extLength)
+ udf_debug("partitionIntegrityTable (part %d)\n", p_index);
+
+ if (phd->freedSpaceTable.extLength) {
+ kernel_lb_addr loc = {
+ .logicalBlockNum = le32_to_cpu(
+ phd->freedSpaceTable.extPosition),
+ .partitionReferenceNum = p_index,
+ };
+
+ map->s_fspace.s_table = udf_iget(sb, loc);
+ if (!map->s_fspace.s_table) {
+ udf_debug("cannot load freedSpaceTable (part %d)\n",
+ p_index);
+ return 1;
+ }
+
+ map->s_partition_flags |= UDF_PART_FLAG_FREED_TABLE;
+ udf_debug("freedSpaceTable (part %d) @ %ld\n",
+ p_index, map->s_fspace.s_table->i_ino);
+ }
+
+ if (phd->freedSpaceBitmap.extLength) {
+ struct udf_bitmap *bitmap = udf_sb_alloc_bitmap(sb, p_index);
+ if (!bitmap)
+ return 1;
+ map->s_fspace.s_bitmap = bitmap;
+ bitmap->s_extLength = le32_to_cpu(
+ phd->freedSpaceBitmap.extLength);
+ bitmap->s_extPosition = le32_to_cpu(
+ phd->freedSpaceBitmap.extPosition);
+ map->s_partition_flags |= UDF_PART_FLAG_FREED_BITMAP;
+ udf_debug("freedSpaceBitmap (part %d) @ %d\n", p_index,
+ bitmap->s_extPosition);
+ }
return 0;
}
-static int udf_load_logicalvol(struct super_block *sb, struct buffer_head *bh,
+static int udf_load_vat(struct super_block *sb, int p_index, int type1_index)
+{
+ struct udf_sb_info *sbi = UDF_SB(sb);
+ struct udf_part_map *map = &sbi->s_partmaps[p_index];
+ kernel_lb_addr ino;
+ struct buffer_head *bh = NULL;
+ struct udf_inode_info *vati;
+ uint32_t pos;
+ struct virtualAllocationTable20 *vat20;
+
+ /* VAT file entry is in the last recorded block */
+ ino.partitionReferenceNum = type1_index;
+ ino.logicalBlockNum = sbi->s_last_block - map->s_partition_root;
+ sbi->s_vat_inode = udf_iget(sb, ino);
+ if (!sbi->s_vat_inode)
+ return 1;
+
+ if (map->s_partition_type == UDF_VIRTUAL_MAP15) {
+ map->s_type_specific.s_virtual.s_start_offset = 0;
+ map->s_type_specific.s_virtual.s_num_entries =
+ (sbi->s_vat_inode->i_size - 36) >> 2;
+ } else if (map->s_partition_type == UDF_VIRTUAL_MAP20) {
+ vati = UDF_I(sbi->s_vat_inode);
+ if (vati->i_alloc_type != ICBTAG_FLAG_AD_IN_ICB) {
+ pos = udf_block_map(sbi->s_vat_inode, 0);
+ bh = sb_bread(sb, pos);
+ if (!bh)
+ return 1;
+ vat20 = (struct virtualAllocationTable20 *)bh->b_data;
+ } else {
+ vat20 = (struct virtualAllocationTable20 *)
+ vati->i_ext.i_data;
+ }
+
+ map->s_type_specific.s_virtual.s_start_offset =
+ le16_to_cpu(vat20->lengthHeader);
+ map->s_type_specific.s_virtual.s_num_entries =
+ (sbi->s_vat_inode->i_size -
+ map->s_type_specific.s_virtual.
+ s_start_offset) >> 2;
+ brelse(bh);
+ }
+ return 0;
+}
+
+static int udf_load_partdesc(struct super_block *sb, sector_t block)
+{
+ struct buffer_head *bh;
+ struct partitionDesc *p;
+ struct udf_part_map *map;
+ struct udf_sb_info *sbi = UDF_SB(sb);
+ int i, type1_idx;
+ uint16_t partitionNumber;
+ uint16_t ident;
+ int ret = 0;
+
+ bh = udf_read_tagged(sb, block, block, &ident);
+ if (!bh)
+ return 1;
+ if (ident != TAG_IDENT_PD)
+ goto out_bh;
+
+ p = (struct partitionDesc *)bh->b_data;
+ partitionNumber = le16_to_cpu(p->partitionNumber);
+
+ /* First scan for TYPE1, SPARABLE and METADATA partitions */
+ for (i = 0; i < sbi->s_partitions; i++) {
+ map = &sbi->s_partmaps[i];
+ udf_debug("Searching map: (%d == %d)\n",
+ map->s_partition_num, partitionNumber);
+ if (map->s_partition_num == partitionNumber &&
+ (map->s_partition_type == UDF_TYPE1_MAP15 ||
+ map->s_partition_type == UDF_SPARABLE_MAP15))
+ break;
+ }
+
+ if (i >= sbi->s_partitions) {
+ udf_debug("Partition (%d) not found in partition map\n",
+ partitionNumber);
+ goto out_bh;
+ }
+
+ ret = udf_fill_partdesc_info(sb, p, i);
+
+ /*
+ * Now rescan for VIRTUAL or METADATA partitions when SPARABLE and
+ * PHYSICAL partitions are already set up
+ */
+ type1_idx = i;
+ for (i = 0; i < sbi->s_partitions; i++) {
+ map = &sbi->s_partmaps[i];
+
+ if (map->s_partition_num == partitionNumber &&
+ (map->s_partition_type == UDF_VIRTUAL_MAP15 ||
+ map->s_partition_type == UDF_VIRTUAL_MAP20 ||
+ map->s_partition_type == UDF_METADATA_MAP25))
+ break;
+ }
+
+ if (i >= sbi->s_partitions)
+ goto out_bh;
+
+ ret = udf_fill_partdesc_info(sb, p, i);
+ if (ret)
+ goto out_bh;
+
+ if (map->s_partition_type == UDF_METADATA_MAP25) {
+ ret = udf_load_metadata_files(sb, i);
+ if (ret) {
+ printk(KERN_ERR "UDF-fs: error loading MetaData "
+ "partition map %d\n", i);
+ goto out_bh;
+ }
+ } else {
+ ret = udf_load_vat(sb, i, type1_idx);
+ if (ret)
+ goto out_bh;
+ /*
+ * Mark filesystem read-only if we have a partition with
+ * virtual map since we don't handle writing to it (we
+ * overwrite blocks instead of relocating them).
+ */
+ sb->s_flags |= MS_RDONLY;
+ printk(KERN_NOTICE "UDF-fs: Filesystem marked read-only "
+ "because writing to pseudooverwrite partition is "
+ "not implemented.\n");
+ }
+out_bh:
+ /* In case loading failed, we handle cleanup in udf_fill_super */
+ brelse(bh);
+ return ret;
+}
+
+static int udf_load_logicalvol(struct super_block *sb, sector_t block,
kernel_lb_addr *fileset)
{
struct logicalVolDesc *lvd;
@@ -1194,12 +1340,21 @@
uint8_t type;
struct udf_sb_info *sbi = UDF_SB(sb);
struct genericPartitionMap *gpm;
+ uint16_t ident;
+ struct buffer_head *bh;
+ int ret = 0;
+ bh = udf_read_tagged(sb, block, block, &ident);
+ if (!bh)
+ return 1;
+ BUG_ON(ident != TAG_IDENT_LVD);
lvd = (struct logicalVolDesc *)bh->b_data;
i = udf_sb_alloc_partition_maps(sb, le32_to_cpu(lvd->numPartitionMaps));
- if (i != 0)
- return i;
+ if (i != 0) {
+ ret = i;
+ goto out_bh;
+ }
for (i = 0, offset = 0;
i < sbi->s_partitions && offset < le32_to_cpu(lvd->mapTableLength);
@@ -1223,12 +1378,12 @@
u16 suf =
le16_to_cpu(((__le16 *)upm2->partIdent.
identSuffix)[0]);
- if (suf == 0x0150) {
+ if (suf < 0x0200) {
map->s_partition_type =
UDF_VIRTUAL_MAP15;
map->s_partition_func =
udf_get_pblock_virt15;
- } else if (suf == 0x0200) {
+ } else {
map->s_partition_type =
UDF_VIRTUAL_MAP20;
map->s_partition_func =
@@ -1238,7 +1393,6 @@
UDF_ID_SPARABLE,
strlen(UDF_ID_SPARABLE))) {
uint32_t loc;
- uint16_t ident;
struct sparingTable *st;
struct sparablePartitionMap *spm =
(struct sparablePartitionMap *)gpm;
@@ -1256,22 +1410,64 @@
map->s_type_specific.s_sparing.
s_spar_map[j] = bh2;
- if (bh2 != NULL) {
- st = (struct sparingTable *)
- bh2->b_data;
- if (ident != 0 || strncmp(
- st->sparingIdent.ident,
- UDF_ID_SPARING,
- strlen(UDF_ID_SPARING))) {
- brelse(bh2);
- map->s_type_specific.
- s_sparing.
- s_spar_map[j] =
- NULL;
- }
+ if (bh2 == NULL)
+ continue;
+
+ st = (struct sparingTable *)bh2->b_data;
+ if (ident != 0 || strncmp(
+ st->sparingIdent.ident,
+ UDF_ID_SPARING,
+ strlen(UDF_ID_SPARING))) {
+ brelse(bh2);
+ map->s_type_specific.s_sparing.
+ s_spar_map[j] = NULL;
}
}
map->s_partition_func = udf_get_pblock_spar15;
+ } else if (!strncmp(upm2->partIdent.ident,
+ UDF_ID_METADATA,
+ strlen(UDF_ID_METADATA))) {
+ struct udf_meta_data *mdata =
+ &map->s_type_specific.s_metadata;
+ struct metadataPartitionMap *mdm =
+ (struct metadataPartitionMap *)
+ &(lvd->partitionMaps[offset]);
+ udf_debug("Parsing Logical vol part %d "
+ "type %d id=%s\n", i, type,
+ UDF_ID_METADATA);
+
+ map->s_partition_type = UDF_METADATA_MAP25;
+ map->s_partition_func = udf_get_pblock_meta25;
+
+ mdata->s_meta_file_loc =
+ le32_to_cpu(mdm->metadataFileLoc);
+ mdata->s_mirror_file_loc =
+ le32_to_cpu(mdm->metadataMirrorFileLoc);
+ mdata->s_bitmap_file_loc =
+ le32_to_cpu(mdm->metadataBitmapFileLoc);
+ mdata->s_alloc_unit_size =
+ le32_to_cpu(mdm->allocUnitSize);
+ mdata->s_align_unit_size =
+ le16_to_cpu(mdm->alignUnitSize);
+ mdata->s_dup_md_flag =
+ mdm->flags & 0x01;
+
+ udf_debug("Metadata Ident suffix=0x%x\n",
+ (le16_to_cpu(
+ ((__le16 *)
+ mdm->partIdent.identSuffix)[0])));
+ udf_debug("Metadata part num=%d\n",
+ le16_to_cpu(mdm->partitionNum));
+ udf_debug("Metadata part alloc unit size=%d\n",
+ le32_to_cpu(mdm->allocUnitSize));
+ udf_debug("Metadata file loc=%d\n",
+ le32_to_cpu(mdm->metadataFileLoc));
+ udf_debug("Mirror file loc=%d\n",
+ le32_to_cpu(mdm->metadataMirrorFileLoc));
+ udf_debug("Bitmap file loc=%d\n",
+ le32_to_cpu(mdm->metadataBitmapFileLoc));
+ udf_debug("Duplicate Flag: %d %d\n",
+ mdata->s_dup_md_flag, mdm->flags);
} else {
udf_debug("Unknown ident: %s\n",
upm2->partIdent.ident);
@@ -1296,7 +1492,9 @@
if (lvd->integritySeqExt.extLength)
udf_load_logicalvolint(sb, leea_to_cpu(lvd->integritySeqExt));
- return 0;
+out_bh:
+ brelse(bh);
+ return ret;
}
/*
@@ -1345,7 +1543,7 @@
* July 1, 1997 - Andrew E. Mileski
* Written, tested, and released.
*/
-static int udf_process_sequence(struct super_block *sb, long block,
+static noinline int udf_process_sequence(struct super_block *sb, long block,
long lastblock, kernel_lb_addr *fileset)
{
struct buffer_head *bh = NULL;
@@ -1354,19 +1552,25 @@
struct generic_desc *gd;
struct volDescPtr *vdp;
int done = 0;
- int i, j;
uint32_t vdsn;
uint16_t ident;
long next_s = 0, next_e = 0;
memset(vds, 0, sizeof(struct udf_vds_record) * VDS_POS_LENGTH);
- /* Read the main descriptor sequence */
+ /*
+ * Read the main descriptor sequence and find which descriptors
+ * are in it.
+ */
for (; (!done && block <= lastblock); block++) {
bh = udf_read_tagged(sb, block, block, &ident);
- if (!bh)
- break;
+ if (!bh) {
+ printk(KERN_ERR "udf: Block %Lu of volume descriptor "
+ "sequence is corrupted or we could not read "
+ "it.\n", (unsigned long long)block);
+ return 1;
+ }
/* Process each descriptor (ISO 13346 3/8.3-8.4) */
gd = (struct generic_desc *)bh->b_data;
@@ -1432,41 +1636,31 @@
}
brelse(bh);
}
- for (i = 0; i < VDS_POS_LENGTH; i++) {
- if (vds[i].block) {
- bh = udf_read_tagged(sb, vds[i].block, vds[i].block,
- &ident);
+ /*
+ * Now read interesting descriptors again and process them
+ * in a suitable order
+ */
+ if (!vds[VDS_POS_PRIMARY_VOL_DESC].block) {
+ printk(KERN_ERR "udf: Primary Volume Descriptor not found!\n");
+ return 1;
+ }
+ if (udf_load_pvoldesc(sb, vds[VDS_POS_PRIMARY_VOL_DESC].block))
+ return 1;
- if (i == VDS_POS_PRIMARY_VOL_DESC) {
- udf_load_pvoldesc(sb, bh);
- } else if (i == VDS_POS_LOGICAL_VOL_DESC) {
- if (udf_load_logicalvol(sb, bh, fileset)) {
- brelse(bh);
- return 1;
- }
- } else if (i == VDS_POS_PARTITION_DESC) {
- struct buffer_head *bh2 = NULL;
- if (udf_load_partdesc(sb, bh)) {
- brelse(bh);
- return 1;
- }
- for (j = vds[i].block + 1;
- j < vds[VDS_POS_TERMINATING_DESC].block;
- j++) {
- bh2 = udf_read_tagged(sb, j, j, &ident);
- gd = (struct generic_desc *)bh2->b_data;
- if (ident == TAG_IDENT_PD)
- if (udf_load_partdesc(sb,
- bh2)) {
- brelse(bh);
- brelse(bh2);
- return 1;
- }
- brelse(bh2);
- }
- }
- brelse(bh);
- }
+ if (vds[VDS_POS_LOGICAL_VOL_DESC].block && udf_load_logicalvol(sb,
+ vds[VDS_POS_LOGICAL_VOL_DESC].block, fileset))
+ return 1;
+
+ if (vds[VDS_POS_PARTITION_DESC].block) {
+ /*
+ * We rescan the whole descriptor sequence to find
+ * partition descriptor blocks and process them.
+ */
+ for (block = vds[VDS_POS_PARTITION_DESC].block;
+ block < vds[VDS_POS_TERMINATING_DESC].block;
+ block++)
+ if (udf_load_partdesc(sb, block))
+ return 1;
}
return 0;
@@ -1478,6 +1672,7 @@
static int udf_check_valid(struct super_block *sb, int novrs, int silent)
{
long block;
+ struct udf_sb_info *sbi = UDF_SB(sb);
if (novrs) {
udf_debug("Validity check skipped because of novrs option\n");
@@ -1485,27 +1680,22 @@
}
/* Check that it is NSR02 compliant */
/* Process any "CD-ROM Volume Descriptor Set" (ECMA 167 2/8.3.1) */
- else {
- block = udf_vrs(sb, silent);
- if (block == -1) {
- struct udf_sb_info *sbi = UDF_SB(sb);
- udf_debug("Failed to read byte 32768. Assuming open "
- "disc. Skipping validity check\n");
- if (!sbi->s_last_block)
- sbi->s_last_block = udf_get_last_block(sb);
- return 0;
- } else
- return !block;
- }
+ block = udf_vrs(sb, silent);
+ if (block == -1)
+ udf_debug("Failed to read byte 32768. Assuming open "
+ "disc. Skipping validity check\n");
+ if (block && !sbi->s_last_block)
+ sbi->s_last_block = udf_get_last_block(sb);
+ return !block;
}
-static int udf_load_partition(struct super_block *sb, kernel_lb_addr *fileset)
+static int udf_load_sequence(struct super_block *sb, kernel_lb_addr *fileset)
{
struct anchorVolDescPtr *anchor;
uint16_t ident;
struct buffer_head *bh;
long main_s, main_e, reserve_s, reserve_e;
- int i, j;
+ int i;
struct udf_sb_info *sbi;
if (!sb)
@@ -1515,6 +1705,7 @@
for (i = 0; i < ARRAY_SIZE(sbi->s_anchor); i++) {
if (!sbi->s_anchor[i])
continue;
+
bh = udf_read_tagged(sb, sbi->s_anchor[i], sbi->s_anchor[i],
&ident);
if (!bh)
@@ -1553,76 +1744,6 @@
}
udf_debug("Using anchor in block %d\n", sbi->s_anchor[i]);
- for (i = 0; i < sbi->s_partitions; i++) {
- kernel_lb_addr uninitialized_var(ino);
- struct udf_part_map *map = &sbi->s_partmaps[i];
- switch (map->s_partition_type) {
- case UDF_VIRTUAL_MAP15:
- case UDF_VIRTUAL_MAP20:
- if (!sbi->s_last_block) {
- sbi->s_last_block = udf_get_last_block(sb);
- udf_find_anchor(sb);
- }
-
- if (!sbi->s_last_block) {
- udf_debug("Unable to determine Lastblock (For "
- "Virtual Partition)\n");
- return 1;
- }
-
- for (j = 0; j < sbi->s_partitions; j++) {
- struct udf_part_map *map2 = &sbi->s_partmaps[j];
- if (j != i &&
- map->s_volumeseqnum ==
- map2->s_volumeseqnum &&
- map->s_partition_num ==
- map2->s_partition_num) {
- ino.partitionReferenceNum = j;
- ino.logicalBlockNum =
- sbi->s_last_block -
- map2->s_partition_root;
- break;
- }
- }
-
- if (j == sbi->s_partitions)
- return 1;
-
- sbi->s_vat_inode = udf_iget(sb, ino);
- if (!sbi->s_vat_inode)
- return 1;
-
- if (map->s_partition_type == UDF_VIRTUAL_MAP15) {
- map->s_type_specific.s_virtual.s_start_offset =
- udf_ext0_offset(sbi->s_vat_inode);
- map->s_type_specific.s_virtual.s_num_entries =
- (sbi->s_vat_inode->i_size - 36) >> 2;
- } else if (map->s_partition_type == UDF_VIRTUAL_MAP20) {
- uint32_t pos;
- struct virtualAllocationTable20 *vat20;
-
- pos = udf_block_map(sbi->s_vat_inode, 0);
- bh = sb_bread(sb, pos);
- if (!bh)
- return 1;
- vat20 = (struct virtualAllocationTable20 *)
- bh->b_data +
- udf_ext0_offset(sbi->s_vat_inode);
- map->s_type_specific.s_virtual.s_start_offset =
- le16_to_cpu(vat20->lengthHeader) +
- udf_ext0_offset(sbi->s_vat_inode);
- map->s_type_specific.s_virtual.s_num_entries =
- (sbi->s_vat_inode->i_size -
- map->s_type_specific.s_virtual.
- s_start_offset) >> 2;
- brelse(bh);
- }
- map->s_partition_root = udf_get_pblock(sb, 0, i, 0);
- map->s_partition_len =
- sbi->s_partmaps[ino.partitionReferenceNum].
- s_partition_len;
- }
- }
return 0;
}
@@ -1630,65 +1751,61 @@
{
struct udf_sb_info *sbi = UDF_SB(sb);
struct buffer_head *bh = sbi->s_lvid_bh;
- if (bh) {
- kernel_timestamp cpu_time;
- struct logicalVolIntegrityDesc *lvid =
- (struct logicalVolIntegrityDesc *)bh->b_data;
- struct logicalVolIntegrityDescImpUse *lvidiu =
- udf_sb_lvidiu(sbi);
+ struct logicalVolIntegrityDesc *lvid;
+ struct logicalVolIntegrityDescImpUse *lvidiu;
+ if (!bh)
+ return;
- lvidiu->impIdent.identSuffix[0] = UDF_OS_CLASS_UNIX;
- lvidiu->impIdent.identSuffix[1] = UDF_OS_ID_LINUX;
- if (udf_time_to_stamp(&cpu_time, CURRENT_TIME))
- lvid->recordingDateAndTime = cpu_to_lets(cpu_time);
- lvid->integrityType = LVID_INTEGRITY_TYPE_OPEN;
+ lvid = (struct logicalVolIntegrityDesc *)bh->b_data;
+ lvidiu = udf_sb_lvidiu(sbi);
- lvid->descTag.descCRC = cpu_to_le16(
- udf_crc((char *)lvid + sizeof(tag),
- le16_to_cpu(lvid->descTag.descCRCLength),
- 0));
+ lvidiu->impIdent.identSuffix[0] = UDF_OS_CLASS_UNIX;
+ lvidiu->impIdent.identSuffix[1] = UDF_OS_ID_LINUX;
+ udf_time_to_disk_stamp(&lvid->recordingDateAndTime,
+ CURRENT_TIME);
+ lvid->integrityType = LVID_INTEGRITY_TYPE_OPEN;
- lvid->descTag.tagChecksum = udf_tag_checksum(&lvid->descTag);
- mark_buffer_dirty(bh);
- }
+ lvid->descTag.descCRC = cpu_to_le16(
+ crc_itu_t(0, (char *)lvid + sizeof(tag),
+ le16_to_cpu(lvid->descTag.descCRCLength)));
+
+ lvid->descTag.tagChecksum = udf_tag_checksum(&lvid->descTag);
+ mark_buffer_dirty(bh);
}
static void udf_close_lvid(struct super_block *sb)
{
- kernel_timestamp cpu_time;
struct udf_sb_info *sbi = UDF_SB(sb);
struct buffer_head *bh = sbi->s_lvid_bh;
struct logicalVolIntegrityDesc *lvid;
+ struct logicalVolIntegrityDescImpUse *lvidiu;
if (!bh)
return;
lvid = (struct logicalVolIntegrityDesc *)bh->b_data;
- if (lvid->integrityType == LVID_INTEGRITY_TYPE_OPEN) {
- struct logicalVolIntegrityDescImpUse *lvidiu =
- udf_sb_lvidiu(sbi);
- lvidiu->impIdent.identSuffix[0] = UDF_OS_CLASS_UNIX;
- lvidiu->impIdent.identSuffix[1] = UDF_OS_ID_LINUX;
- if (udf_time_to_stamp(&cpu_time, CURRENT_TIME))
- lvid->recordingDateAndTime = cpu_to_lets(cpu_time);
- if (UDF_MAX_WRITE_VERSION > le16_to_cpu(lvidiu->maxUDFWriteRev))
- lvidiu->maxUDFWriteRev =
- cpu_to_le16(UDF_MAX_WRITE_VERSION);
- if (sbi->s_udfrev > le16_to_cpu(lvidiu->minUDFReadRev))
- lvidiu->minUDFReadRev = cpu_to_le16(sbi->s_udfrev);
- if (sbi->s_udfrev > le16_to_cpu(lvidiu->minUDFWriteRev))
- lvidiu->minUDFWriteRev = cpu_to_le16(sbi->s_udfrev);
- lvid->integrityType = cpu_to_le32(LVID_INTEGRITY_TYPE_CLOSE);
+ if (lvid->integrityType != LVID_INTEGRITY_TYPE_OPEN)
+ return;
- lvid->descTag.descCRC = cpu_to_le16(
- udf_crc((char *)lvid + sizeof(tag),
- le16_to_cpu(lvid->descTag.descCRCLength),
- 0));
+ lvidiu = udf_sb_lvidiu(sbi);
+ lvidiu->impIdent.identSuffix[0] = UDF_OS_CLASS_UNIX;
+ lvidiu->impIdent.identSuffix[1] = UDF_OS_ID_LINUX;
+ udf_time_to_disk_stamp(&lvid->recordingDateAndTime, CURRENT_TIME);
+ if (UDF_MAX_WRITE_VERSION > le16_to_cpu(lvidiu->maxUDFWriteRev))
+ lvidiu->maxUDFWriteRev = cpu_to_le16(UDF_MAX_WRITE_VERSION);
+ if (sbi->s_udfrev > le16_to_cpu(lvidiu->minUDFReadRev))
+ lvidiu->minUDFReadRev = cpu_to_le16(sbi->s_udfrev);
+ if (sbi->s_udfrev > le16_to_cpu(lvidiu->minUDFWriteRev))
+ lvidiu->minUDFWriteRev = cpu_to_le16(sbi->s_udfrev);
+ lvid->integrityType = cpu_to_le32(LVID_INTEGRITY_TYPE_CLOSE);
- lvid->descTag.tagChecksum = udf_tag_checksum(&lvid->descTag);
- mark_buffer_dirty(bh);
- }
+ lvid->descTag.descCRC = cpu_to_le16(
+ crc_itu_t(0, (char *)lvid + sizeof(tag),
+ le16_to_cpu(lvid->descTag.descCRCLength)));
+
+ lvid->descTag.tagChecksum = udf_tag_checksum(&lvid->descTag);
+ mark_buffer_dirty(bh);
}
static void udf_sb_free_bitmap(struct udf_bitmap *bitmap)
@@ -1708,22 +1825,35 @@
vfree(bitmap);
}
-/*
- * udf_read_super
- *
- * PURPOSE
- * Complete the specified super block.
- *
- * PRE-CONDITIONS
- * sb Pointer to superblock to complete - never NULL.
- * sb->s_dev Device to read suberblock from.
- * options Pointer to mount options.
- * silent Silent flag.
- *
- * HISTORY
- * July 1, 1997 - Andrew E. Mileski
- * Written, tested, and released.
- */
+static void udf_free_partition(struct udf_part_map *map)
+{
+ int i;
+ struct udf_meta_data *mdata;
+
+ if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_TABLE)
+ iput(map->s_uspace.s_table);
+ if (map->s_partition_flags & UDF_PART_FLAG_FREED_TABLE)
+ iput(map->s_fspace.s_table);
+ if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_BITMAP)
+ udf_sb_free_bitmap(map->s_uspace.s_bitmap);
+ if (map->s_partition_flags & UDF_PART_FLAG_FREED_BITMAP)
+ udf_sb_free_bitmap(map->s_fspace.s_bitmap);
+ if (map->s_partition_type == UDF_SPARABLE_MAP15)
+ for (i = 0; i < 4; i++)
+ brelse(map->s_type_specific.s_sparing.s_spar_map[i]);
+ else if (map->s_partition_type == UDF_METADATA_MAP25) {
+ mdata = &map->s_type_specific.s_metadata;
+ iput(mdata->s_metadata_fe);
+ mdata->s_metadata_fe = NULL;
+
+ iput(mdata->s_mirror_fe);
+ mdata->s_mirror_fe = NULL;
+
+ iput(mdata->s_bitmap_fe);
+ mdata->s_bitmap_fe = NULL;
+ }
+}
+
static int udf_fill_super(struct super_block *sb, void *options, int silent)
{
int i;
@@ -1776,8 +1906,11 @@
sbi->s_nls_map = uopt.nls_map;
/* Set the block size for all transfers */
- if (!udf_set_blocksize(sb, uopt.blocksize))
+ if (!sb_min_blocksize(sb, uopt.blocksize)) {
+ udf_debug("Bad block size (%d)\n", uopt.blocksize);
+ printk(KERN_ERR "udf: bad block size (%d)\n", uopt.blocksize);
goto error_out;
+ }
if (uopt.session == 0xFFFFFFFF)
sbi->s_session = udf_get_last_session(sb);
@@ -1789,7 +1922,6 @@
sbi->s_last_block = uopt.lastblock;
sbi->s_anchor[0] = sbi->s_anchor[1] = 0;
sbi->s_anchor[2] = uopt.anchor;
- sbi->s_anchor[3] = 256;
if (udf_check_valid(sb, uopt.novrs, silent)) {
/* read volume recognition sequences */
@@ -1806,7 +1938,7 @@
sb->s_magic = UDF_SUPER_MAGIC;
sb->s_time_gran = 1000;
- if (udf_load_partition(sb, &fileset)) {
+ if (udf_load_sequence(sb, &fileset)) {
printk(KERN_WARNING "UDF-fs: No partition found (1)\n");
goto error_out;
}
@@ -1856,12 +1988,12 @@
}
if (!silent) {
- kernel_timestamp ts;
- udf_time_to_stamp(&ts, sbi->s_record_time);
+ timestamp ts;
+ udf_time_to_disk_stamp(&ts, sbi->s_record_time);
udf_info("UDF: Mounting volume '%s', "
"timestamp %04u/%02u/%02u %02u:%02u (%x)\n",
- sbi->s_volume_ident, ts.year, ts.month, ts.day,
- ts.hour, ts.minute, ts.typeAndTimezone);
+ sbi->s_volume_ident, le16_to_cpu(ts.year), ts.month, ts.day,
+ ts.hour, ts.minute, le16_to_cpu(ts.typeAndTimezone));
}
if (!(sb->s_flags & MS_RDONLY))
udf_open_lvid(sb);
@@ -1890,21 +2022,9 @@
error_out:
if (sbi->s_vat_inode)
iput(sbi->s_vat_inode);
- if (sbi->s_partitions) {
- struct udf_part_map *map = &sbi->s_partmaps[sbi->s_partition];
- if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_TABLE)
- iput(map->s_uspace.s_table);
- if (map->s_partition_flags & UDF_PART_FLAG_FREED_TABLE)
- iput(map->s_fspace.s_table);
- if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_BITMAP)
- udf_sb_free_bitmap(map->s_uspace.s_bitmap);
- if (map->s_partition_flags & UDF_PART_FLAG_FREED_BITMAP)
- udf_sb_free_bitmap(map->s_fspace.s_bitmap);
- if (map->s_partition_type == UDF_SPARABLE_MAP15)
- for (i = 0; i < 4; i++)
- brelse(map->s_type_specific.s_sparing.
- s_spar_map[i]);
- }
+ if (sbi->s_partitions)
+ for (i = 0; i < sbi->s_partitions; i++)
+ udf_free_partition(&sbi->s_partmaps[i]);
#ifdef CONFIG_UDF_NLS
if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP))
unload_nls(sbi->s_nls_map);
@@ -1920,8 +2040,8 @@
return -EINVAL;
}
-void udf_error(struct super_block *sb, const char *function,
- const char *fmt, ...)
+static void udf_error(struct super_block *sb, const char *function,
+ const char *fmt, ...)
{
va_list args;
@@ -1948,19 +2068,6 @@
sb->s_id, function, error_buf);
}
-/*
- * udf_put_super
- *
- * PURPOSE
- * Prepare for destruction of the superblock.
- *
- * DESCRIPTION
- * Called before the filesystem is unmounted.
- *
- * HISTORY
- * July 1, 1997 - Andrew E. Mileski
- * Written, tested, and released.
- */
static void udf_put_super(struct super_block *sb)
{
int i;
@@ -1969,21 +2076,9 @@
sbi = UDF_SB(sb);
if (sbi->s_vat_inode)
iput(sbi->s_vat_inode);
- if (sbi->s_partitions) {
- struct udf_part_map *map = &sbi->s_partmaps[sbi->s_partition];
- if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_TABLE)
- iput(map->s_uspace.s_table);
- if (map->s_partition_flags & UDF_PART_FLAG_FREED_TABLE)
- iput(map->s_fspace.s_table);
- if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_BITMAP)
- udf_sb_free_bitmap(map->s_uspace.s_bitmap);
- if (map->s_partition_flags & UDF_PART_FLAG_FREED_BITMAP)
- udf_sb_free_bitmap(map->s_fspace.s_bitmap);
- if (map->s_partition_type == UDF_SPARABLE_MAP15)
- for (i = 0; i < 4; i++)
- brelse(map->s_type_specific.s_sparing.
- s_spar_map[i]);
- }
+ if (sbi->s_partitions)
+ for (i = 0; i < sbi->s_partitions; i++)
+ udf_free_partition(&sbi->s_partmaps[i]);
#ifdef CONFIG_UDF_NLS
if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP))
unload_nls(sbi->s_nls_map);
@@ -1996,19 +2091,6 @@
sb->s_fs_info = NULL;
}
-/*
- * udf_stat_fs
- *
- * PURPOSE
- * Return info about the filesystem.
- *
- * DESCRIPTION
- * Called by sys_statfs()
- *
- * HISTORY
- * July 1, 1997 - Andrew E. Mileski
- * Written, tested, and released.
- */
static int udf_statfs(struct dentry *dentry, struct kstatfs *buf)
{
struct super_block *sb = dentry->d_sb;
@@ -2035,10 +2117,6 @@
return 0;
}
-static unsigned char udf_bitmap_lookup[16] = {
- 0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4
-};
-
static unsigned int udf_count_free_bitmap(struct super_block *sb,
struct udf_bitmap *bitmap)
{
@@ -2048,7 +2126,6 @@
int block = 0, newblock;
kernel_lb_addr loc;
uint32_t bytes;
- uint8_t value;
uint8_t *ptr;
uint16_t ident;
struct spaceBitmapDesc *bm;
@@ -2074,13 +2151,10 @@
ptr = (uint8_t *)bh->b_data;
while (bytes > 0) {
- while ((bytes > 0) && (index < sb->s_blocksize)) {
- value = ptr[index];
- accum += udf_bitmap_lookup[value & 0x0f];
- accum += udf_bitmap_lookup[value >> 4];
- index++;
- bytes--;
- }
+ u32 cur_bytes = min_t(u32, bytes, sb->s_blocksize - index);
+ accum += bitmap_weight((const unsigned long *)(ptr + index),
+ cur_bytes * 8);
+ bytes -= cur_bytes;
if (bytes) {
brelse(bh);
newblock = udf_get_lb_pblock(sb, loc, ++block);
diff --git a/fs/udf/symlink.c b/fs/udf/symlink.c
index 6ec9922..c3265e1 100644
--- a/fs/udf/symlink.c
+++ b/fs/udf/symlink.c
@@ -23,7 +23,6 @@
#include <asm/uaccess.h>
#include <linux/errno.h>
#include <linux/fs.h>
-#include <linux/udf_fs.h>
#include <linux/time.h>
#include <linux/mm.h>
#include <linux/stat.h>
diff --git a/fs/udf/truncate.c b/fs/udf/truncate.c
index fe61be1..65e19b4 100644
--- a/fs/udf/truncate.c
+++ b/fs/udf/truncate.c
@@ -22,7 +22,6 @@
#include "udfdecl.h"
#include <linux/fs.h>
#include <linux/mm.h>
-#include <linux/udf_fs.h>
#include <linux/buffer_head.h>
#include "udf_i.h"
@@ -180,6 +179,24 @@
brelse(epos.bh);
}
+static void udf_update_alloc_ext_desc(struct inode *inode,
+ struct extent_position *epos,
+ u32 lenalloc)
+{
+ struct super_block *sb = inode->i_sb;
+ struct udf_sb_info *sbi = UDF_SB(sb);
+
+ struct allocExtDesc *aed = (struct allocExtDesc *) (epos->bh->b_data);
+ int len = sizeof(struct allocExtDesc);
+
+ aed->lengthAllocDescs = cpu_to_le32(lenalloc);
+ if (!UDF_QUERY_FLAG(sb, UDF_FLAG_STRICT) || sbi->s_udfrev >= 0x0201)
+ len += lenalloc;
+
+ udf_update_tag(epos->bh->b_data, len);
+ mark_buffer_dirty_inode(epos->bh, inode);
+}
+
void udf_truncate_extents(struct inode *inode)
{
struct extent_position epos;
@@ -187,7 +204,6 @@
uint32_t elen, nelen = 0, indirect_ext_len = 0, lenalloc;
int8_t etype;
struct super_block *sb = inode->i_sb;
- struct udf_sb_info *sbi = UDF_SB(sb);
sector_t first_block = inode->i_size >> sb->s_blocksize_bits, offset;
loff_t byte_offset;
int adsize;
@@ -224,35 +240,15 @@
if (indirect_ext_len) {
/* We managed to free all extents in the
* indirect extent - free it too */
- if (!epos.bh)
- BUG();
+ BUG_ON(!epos.bh);
udf_free_blocks(sb, inode, epos.block,
0, indirect_ext_len);
- } else {
- if (!epos.bh) {
- iinfo->i_lenAlloc =
- lenalloc;
- mark_inode_dirty(inode);
- } else {
- struct allocExtDesc *aed =
- (struct allocExtDesc *)
- (epos.bh->b_data);
- int len =
- sizeof(struct allocExtDesc);
-
- aed->lengthAllocDescs =
- cpu_to_le32(lenalloc);
- if (!UDF_QUERY_FLAG(sb,
- UDF_FLAG_STRICT) ||
- sbi->s_udfrev >= 0x0201)
- len += lenalloc;
-
- udf_update_tag(epos.bh->b_data,
- len);
- mark_buffer_dirty_inode(
- epos.bh, inode);
- }
- }
+ } else if (!epos.bh) {
+ iinfo->i_lenAlloc = lenalloc;
+ mark_inode_dirty(inode);
+ } else
+ udf_update_alloc_ext_desc(inode,
+ &epos, lenalloc);
brelse(epos.bh);
epos.offset = sizeof(struct allocExtDesc);
epos.block = eloc;
@@ -272,29 +268,14 @@
}
if (indirect_ext_len) {
- if (!epos.bh)
- BUG();
+ BUG_ON(!epos.bh);
udf_free_blocks(sb, inode, epos.block, 0,
indirect_ext_len);
- } else {
- if (!epos.bh) {
- iinfo->i_lenAlloc = lenalloc;
- mark_inode_dirty(inode);
- } else {
- struct allocExtDesc *aed =
- (struct allocExtDesc *)(epos.bh->b_data);
- aed->lengthAllocDescs = cpu_to_le32(lenalloc);
- if (!UDF_QUERY_FLAG(sb, UDF_FLAG_STRICT) ||
- sbi->s_udfrev >= 0x0201)
- udf_update_tag(epos.bh->b_data,
- lenalloc +
- sizeof(struct allocExtDesc));
- else
- udf_update_tag(epos.bh->b_data,
- sizeof(struct allocExtDesc));
- mark_buffer_dirty_inode(epos.bh, inode);
- }
- }
+ } else if (!epos.bh) {
+ iinfo->i_lenAlloc = lenalloc;
+ mark_inode_dirty(inode);
+ } else
+ udf_update_alloc_ext_desc(inode, &epos, lenalloc);
} else if (inode->i_size) {
if (byte_offset) {
kernel_long_ad extent;
diff --git a/fs/udf/udf_i.h b/fs/udf/udf_i.h
index ccc52f1..4f86b1d 100644
--- a/fs/udf/udf_i.h
+++ b/fs/udf/udf_i.h
@@ -1,10 +1,32 @@
-#ifndef __LINUX_UDF_I_H
-#define __LINUX_UDF_I_H
+#ifndef _UDF_I_H
+#define _UDF_I_H
-#include <linux/udf_fs_i.h>
+struct udf_inode_info {
+ struct timespec i_crtime;
+ /* Physical address of inode */
+ kernel_lb_addr i_location;
+ __u64 i_unique;
+ __u32 i_lenEAttr;
+ __u32 i_lenAlloc;
+ __u64 i_lenExtents;
+ __u32 i_next_alloc_block;
+ __u32 i_next_alloc_goal;
+ unsigned i_alloc_type : 3;
+ unsigned i_efe : 1; /* extendedFileEntry */
+ unsigned i_use : 1; /* unallocSpaceEntry */
+ unsigned i_strat4096 : 1;
+ unsigned reserved : 26;
+ union {
+ short_ad *i_sad;
+ long_ad *i_lad;
+ __u8 *i_data;
+ } i_ext;
+ struct inode vfs_inode;
+};
+
static inline struct udf_inode_info *UDF_I(struct inode *inode)
{
return list_entry(inode, struct udf_inode_info, vfs_inode);
}
-#endif /* !defined(_LINUX_UDF_I_H) */
+#endif /* _UDF_I_H) */
diff --git a/fs/udf/udf_sb.h b/fs/udf/udf_sb.h
index 737d1c6..1c1c514 100644
--- a/fs/udf/udf_sb.h
+++ b/fs/udf/udf_sb.h
@@ -1,10 +1,12 @@
#ifndef __LINUX_UDF_SB_H
#define __LINUX_UDF_SB_H
+#include <linux/mutex.h>
+
/* Since UDF 2.01 is ISO 13346 based... */
#define UDF_SUPER_MAGIC 0x15013346
-#define UDF_MAX_READ_VERSION 0x0201
+#define UDF_MAX_READ_VERSION 0x0250
#define UDF_MAX_WRITE_VERSION 0x0201
#define UDF_FLAG_USE_EXTENDED_FE 0
@@ -38,6 +40,111 @@
#define UDF_PART_FLAG_REWRITABLE 0x0040
#define UDF_PART_FLAG_OVERWRITABLE 0x0080
+#define UDF_MAX_BLOCK_LOADED 8
+
+#define UDF_TYPE1_MAP15 0x1511U
+#define UDF_VIRTUAL_MAP15 0x1512U
+#define UDF_VIRTUAL_MAP20 0x2012U
+#define UDF_SPARABLE_MAP15 0x1522U
+#define UDF_METADATA_MAP25 0x2511U
+
+#pragma pack(1) /* XXX(hch): Why? This file just defines in-core structures */
+
+struct udf_meta_data {
+ __u32 s_meta_file_loc;
+ __u32 s_mirror_file_loc;
+ __u32 s_bitmap_file_loc;
+ __u32 s_alloc_unit_size;
+ __u16 s_align_unit_size;
+ __u8 s_dup_md_flag;
+ struct inode *s_metadata_fe;
+ struct inode *s_mirror_fe;
+ struct inode *s_bitmap_fe;
+};
+
+struct udf_sparing_data {
+ __u16 s_packet_len;
+ struct buffer_head *s_spar_map[4];
+};
+
+struct udf_virtual_data {
+ __u32 s_num_entries;
+ __u16 s_start_offset;
+};
+
+struct udf_bitmap {
+ __u32 s_extLength;
+ __u32 s_extPosition;
+ __u16 s_nr_groups;
+ struct buffer_head **s_block_bitmap;
+};
+
+struct udf_part_map {
+ union {
+ struct udf_bitmap *s_bitmap;
+ struct inode *s_table;
+ } s_uspace;
+ union {
+ struct udf_bitmap *s_bitmap;
+ struct inode *s_table;
+ } s_fspace;
+ __u32 s_partition_root;
+ __u32 s_partition_len;
+ __u16 s_partition_type;
+ __u16 s_partition_num;
+ union {
+ struct udf_sparing_data s_sparing;
+ struct udf_virtual_data s_virtual;
+ struct udf_meta_data s_metadata;
+ } s_type_specific;
+ __u32 (*s_partition_func)(struct super_block *, __u32, __u16, __u32);
+ __u16 s_volumeseqnum;
+ __u16 s_partition_flags;
+};
+
+#pragma pack()
+
+struct udf_sb_info {
+ struct udf_part_map *s_partmaps;
+ __u8 s_volume_ident[32];
+
+ /* Overall info */
+ __u16 s_partitions;
+ __u16 s_partition;
+
+ /* Sector headers */
+ __s32 s_session;
+ __u32 s_anchor[3];
+ __u32 s_last_block;
+
+ struct buffer_head *s_lvid_bh;
+
+ /* Default permissions */
+ mode_t s_umask;
+ gid_t s_gid;
+ uid_t s_uid;
+
+ /* Root Info */
+ struct timespec s_record_time;
+
+ /* Fileset Info */
+ __u16 s_serial_number;
+
+ /* highest UDF revision we have recorded to this media */
+ __u16 s_udfrev;
+
+ /* Miscellaneous flags */
+ __u32 s_flags;
+
+ /* Encoding info */
+ struct nls_table *s_nls_map;
+
+ /* VAT inode */
+ struct inode *s_vat_inode;
+
+ struct mutex s_alloc_mutex;
+};
+
static inline struct udf_sb_info *UDF_SB(struct super_block *sb)
{
return sb->s_fs_info;
diff --git a/fs/udf/udfdecl.h b/fs/udf/udfdecl.h
index 681dc2b..f3f45d0 100644
--- a/fs/udf/udfdecl.h
+++ b/fs/udf/udfdecl.h
@@ -1,17 +1,37 @@
#ifndef __UDF_DECL_H
#define __UDF_DECL_H
-#include <linux/udf_fs.h>
#include "ecma_167.h"
#include "osta_udf.h"
#include <linux/fs.h>
#include <linux/types.h>
-#include <linux/udf_fs_i.h>
-#include <linux/udf_fs_sb.h>
#include <linux/buffer_head.h>
+#include <linux/udf_fs_i.h>
+#include "udf_sb.h"
#include "udfend.h"
+#include "udf_i.h"
+
+#define UDF_PREALLOCATE
+#define UDF_DEFAULT_PREALLOC_BLOCKS 8
+
+#define UDFFS_DEBUG
+
+#ifdef UDFFS_DEBUG
+#define udf_debug(f, a...) \
+do { \
+ printk(KERN_DEBUG "UDF-fs DEBUG %s:%d:%s: ", \
+ __FILE__, __LINE__, __func__); \
+ printk(f, ##a); \
+} while (0)
+#else
+#define udf_debug(f, a...) /**/
+#endif
+
+#define udf_info(f, a...) \
+ printk(KERN_INFO "UDF-fs INFO " f, ##a);
+
#define udf_fixed_to_variable(x) ( ( ( (x) >> 5 ) * 39 ) + ( (x) & 0x0000001F ) )
#define udf_variable_to_fixed(x) ( ( ( (x) / 39 ) << 5 ) + ( (x) % 39 ) )
@@ -23,16 +43,24 @@
#define UDF_NAME_LEN 256
#define UDF_PATH_LEN 1023
-#define udf_file_entry_alloc_offset(inode)\
- (UDF_I(inode)->i_use ?\
- sizeof(struct unallocSpaceEntry) :\
- ((UDF_I(inode)->i_efe ?\
- sizeof(struct extendedFileEntry) :\
- sizeof(struct fileEntry)) + UDF_I(inode)->i_lenEAttr))
+static inline size_t udf_file_entry_alloc_offset(struct inode *inode)
+{
+ struct udf_inode_info *iinfo = UDF_I(inode);
+ if (iinfo->i_use)
+ return sizeof(struct unallocSpaceEntry);
+ else if (iinfo->i_efe)
+ return sizeof(struct extendedFileEntry) + iinfo->i_lenEAttr;
+ else
+ return sizeof(struct fileEntry) + iinfo->i_lenEAttr;
+}
-#define udf_ext0_offset(inode)\
- (UDF_I(inode)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB ?\
- udf_file_entry_alloc_offset(inode) : 0)
+static inline size_t udf_ext0_offset(struct inode *inode)
+{
+ if (UDF_I(inode)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
+ return udf_file_entry_alloc_offset(inode);
+ else
+ return 0;
+}
#define udf_get_lb_pblock(sb,loc,offset) udf_get_pblock((sb), (loc).logicalBlockNum, (loc).partitionReferenceNum, (offset))
@@ -83,7 +111,6 @@
};
/* super.c */
-extern void udf_error(struct super_block *, const char *, const char *, ...);
extern void udf_warning(struct super_block *, const char *, const char *, ...);
/* namei.c */
@@ -150,6 +177,8 @@
uint32_t);
extern uint32_t udf_get_pblock_spar15(struct super_block *, uint32_t, uint16_t,
uint32_t);
+extern uint32_t udf_get_pblock_meta25(struct super_block *, uint32_t, uint16_t,
+ uint32_t);
extern int udf_relocate_blocks(struct super_block *, long, long *);
/* unicode.c */
@@ -157,7 +186,7 @@
extern int udf_put_filename(struct super_block *, const uint8_t *, uint8_t *,
int);
extern int udf_build_ustr(struct ustr *, dstring *, int);
-extern int udf_CS0toUTF8(struct ustr *, struct ustr *);
+extern int udf_CS0toUTF8(struct ustr *, const struct ustr *);
/* ialloc.c */
extern void udf_free_inode(struct inode *);
@@ -191,11 +220,9 @@
extern long_ad *udf_get_filelongad(uint8_t *, int, uint32_t *, int);
extern short_ad *udf_get_fileshortad(uint8_t *, int, uint32_t *, int);
-/* crc.c */
-extern uint16_t udf_crc(uint8_t *, uint32_t, uint16_t);
-
/* udftime.c */
-extern time_t *udf_stamp_to_time(time_t *, long *, kernel_timestamp);
-extern kernel_timestamp *udf_time_to_stamp(kernel_timestamp *, struct timespec);
+extern struct timespec *udf_disk_stamp_to_time(struct timespec *dest,
+ timestamp src);
+extern timestamp *udf_time_to_disk_stamp(timestamp *dest, struct timespec src);
#endif /* __UDF_DECL_H */
diff --git a/fs/udf/udfend.h b/fs/udf/udfend.h
index c4bd120..489f52f 100644
--- a/fs/udf/udfend.h
+++ b/fs/udf/udfend.h
@@ -24,17 +24,6 @@
return out;
}
-static inline kernel_timestamp lets_to_cpu(timestamp in)
-{
- kernel_timestamp out;
-
- memcpy(&out, &in, sizeof(timestamp));
- out.typeAndTimezone = le16_to_cpu(in.typeAndTimezone);
- out.year = le16_to_cpu(in.year);
-
- return out;
-}
-
static inline short_ad lesa_to_cpu(short_ad in)
{
short_ad out;
@@ -85,15 +74,4 @@
return out;
}
-static inline timestamp cpu_to_lets(kernel_timestamp in)
-{
- timestamp out;
-
- memcpy(&out, &in, sizeof(timestamp));
- out.typeAndTimezone = cpu_to_le16(in.typeAndTimezone);
- out.year = cpu_to_le16(in.year);
-
- return out;
-}
-
#endif /* __UDF_ENDIAN_H */
diff --git a/fs/udf/udftime.c b/fs/udf/udftime.c
index ce59573..5f811655 100644
--- a/fs/udf/udftime.c
+++ b/fs/udf/udftime.c
@@ -85,39 +85,38 @@
#define SECS_PER_HOUR (60 * 60)
#define SECS_PER_DAY (SECS_PER_HOUR * 24)
-time_t *udf_stamp_to_time(time_t *dest, long *dest_usec, kernel_timestamp src)
+struct timespec *udf_disk_stamp_to_time(struct timespec *dest, timestamp src)
{
int yday;
- uint8_t type = src.typeAndTimezone >> 12;
+ u16 typeAndTimezone = le16_to_cpu(src.typeAndTimezone);
+ u16 year = le16_to_cpu(src.year);
+ uint8_t type = typeAndTimezone >> 12;
int16_t offset;
if (type == 1) {
- offset = src.typeAndTimezone << 4;
+ offset = typeAndTimezone << 4;
/* sign extent offset */
offset = (offset >> 4);
if (offset == -2047) /* unspecified offset */
offset = 0;
- } else {
+ } else
offset = 0;
- }
- if ((src.year < EPOCH_YEAR) ||
- (src.year >= EPOCH_YEAR + MAX_YEAR_SECONDS)) {
- *dest = -1;
- *dest_usec = -1;
+ if ((year < EPOCH_YEAR) ||
+ (year >= EPOCH_YEAR + MAX_YEAR_SECONDS)) {
return NULL;
}
- *dest = year_seconds[src.year - EPOCH_YEAR];
- *dest -= offset * 60;
+ dest->tv_sec = year_seconds[year - EPOCH_YEAR];
+ dest->tv_sec -= offset * 60;
- yday = ((__mon_yday[__isleap(src.year)][src.month - 1]) + src.day - 1);
- *dest += (((yday * 24) + src.hour) * 60 + src.minute) * 60 + src.second;
- *dest_usec = src.centiseconds * 10000 +
- src.hundredsOfMicroseconds * 100 + src.microseconds;
+ yday = ((__mon_yday[__isleap(year)][src.month - 1]) + src.day - 1);
+ dest->tv_sec += (((yday * 24) + src.hour) * 60 + src.minute) * 60 + src.second;
+ dest->tv_nsec = 1000 * (src.centiseconds * 10000 +
+ src.hundredsOfMicroseconds * 100 + src.microseconds);
return dest;
}
-kernel_timestamp *udf_time_to_stamp(kernel_timestamp *dest, struct timespec ts)
+timestamp *udf_time_to_disk_stamp(timestamp *dest, struct timespec ts)
{
long int days, rem, y;
const unsigned short int *ip;
@@ -128,7 +127,7 @@
if (!dest)
return NULL;
- dest->typeAndTimezone = 0x1000 | (offset & 0x0FFF);
+ dest->typeAndTimezone = cpu_to_le16(0x1000 | (offset & 0x0FFF));
ts.tv_sec += offset * 60;
days = ts.tv_sec / SECS_PER_DAY;
@@ -151,7 +150,7 @@
- LEAPS_THRU_END_OF(y - 1));
y = yg;
}
- dest->year = y;
+ dest->year = cpu_to_le16(y);
ip = __mon_yday[__isleap(y)];
for (y = 11; days < (long int)ip[y]; --y)
continue;
diff --git a/fs/udf/unicode.c b/fs/udf/unicode.c
index e533b11..9fdf8c9 100644
--- a/fs/udf/unicode.c
+++ b/fs/udf/unicode.c
@@ -23,7 +23,7 @@
#include <linux/kernel.h>
#include <linux/string.h> /* for memset */
#include <linux/nls.h>
-#include <linux/udf_fs.h>
+#include <linux/crc-itu-t.h>
#include "udf_sb.h"
@@ -49,14 +49,16 @@
{
int usesize;
- if ((!dest) || (!ptr) || (!size))
+ if (!dest || !ptr || !size)
return -1;
+ BUG_ON(size < 2);
- memset(dest, 0, sizeof(struct ustr));
- usesize = (size > UDF_NAME_LEN) ? UDF_NAME_LEN : size;
+ usesize = min_t(size_t, ptr[size - 1], sizeof(dest->u_name));
+ usesize = min(usesize, size - 2);
dest->u_cmpID = ptr[0];
- dest->u_len = ptr[size - 1];
- memcpy(dest->u_name, ptr + 1, usesize - 1);
+ dest->u_len = usesize;
+ memcpy(dest->u_name, ptr + 1, usesize);
+ memset(dest->u_name + usesize, 0, sizeof(dest->u_name) - usesize);
return 0;
}
@@ -83,9 +85,6 @@
* PURPOSE
* Convert OSTA Compressed Unicode to the UTF-8 equivalent.
*
- * DESCRIPTION
- * This routine is only called by udf_filldir().
- *
* PRE-CONDITIONS
* utf Pointer to UTF-8 output buffer.
* ocu Pointer to OSTA Compressed Unicode input buffer
@@ -99,43 +98,39 @@
* November 12, 1997 - Andrew E. Mileski
* Written, tested, and released.
*/
-int udf_CS0toUTF8(struct ustr *utf_o, struct ustr *ocu_i)
+int udf_CS0toUTF8(struct ustr *utf_o, const struct ustr *ocu_i)
{
- uint8_t *ocu;
- uint32_t c;
+ const uint8_t *ocu;
uint8_t cmp_id, ocu_len;
int i;
- ocu = ocu_i->u_name;
-
ocu_len = ocu_i->u_len;
- cmp_id = ocu_i->u_cmpID;
- utf_o->u_len = 0;
-
if (ocu_len == 0) {
memset(utf_o, 0, sizeof(struct ustr));
- utf_o->u_cmpID = 0;
- utf_o->u_len = 0;
return 0;
}
- if ((cmp_id != 8) && (cmp_id != 16)) {
+ cmp_id = ocu_i->u_cmpID;
+ if (cmp_id != 8 && cmp_id != 16) {
+ memset(utf_o, 0, sizeof(struct ustr));
printk(KERN_ERR "udf: unknown compression code (%d) stri=%s\n",
cmp_id, ocu_i->u_name);
return 0;
}
+ ocu = ocu_i->u_name;
+ utf_o->u_len = 0;
for (i = 0; (i < ocu_len) && (utf_o->u_len <= (UDF_NAME_LEN - 3));) {
/* Expand OSTA compressed Unicode to Unicode */
- c = ocu[i++];
+ uint32_t c = ocu[i++];
if (cmp_id == 16)
c = (c << 8) | ocu[i++];
/* Compress Unicode to UTF-8 */
- if (c < 0x80U) {
+ if (c < 0x80U)
utf_o->u_name[utf_o->u_len++] = (uint8_t)c;
- } else if (c < 0x800U) {
+ else if (c < 0x800U) {
utf_o->u_name[utf_o->u_len++] =
(uint8_t)(0xc0 | (c >> 6));
utf_o->u_name[utf_o->u_len++] =
@@ -255,35 +250,32 @@
}
static int udf_CS0toNLS(struct nls_table *nls, struct ustr *utf_o,
- struct ustr *ocu_i)
+ const struct ustr *ocu_i)
{
- uint8_t *ocu;
- uint32_t c;
+ const uint8_t *ocu;
uint8_t cmp_id, ocu_len;
int i;
- ocu = ocu_i->u_name;
ocu_len = ocu_i->u_len;
- cmp_id = ocu_i->u_cmpID;
- utf_o->u_len = 0;
-
if (ocu_len == 0) {
memset(utf_o, 0, sizeof(struct ustr));
- utf_o->u_cmpID = 0;
- utf_o->u_len = 0;
return 0;
}
- if ((cmp_id != 8) && (cmp_id != 16)) {
+ cmp_id = ocu_i->u_cmpID;
+ if (cmp_id != 8 && cmp_id != 16) {
+ memset(utf_o, 0, sizeof(struct ustr));
printk(KERN_ERR "udf: unknown compression code (%d) stri=%s\n",
cmp_id, ocu_i->u_name);
return 0;
}
+ ocu = ocu_i->u_name;
+ utf_o->u_len = 0;
for (i = 0; (i < ocu_len) && (utf_o->u_len <= (UDF_NAME_LEN - 3));) {
/* Expand OSTA compressed Unicode to Unicode */
- c = ocu[i++];
+ uint32_t c = ocu[i++];
if (cmp_id == 16)
c = (c << 8) | ocu[i++];
@@ -463,7 +455,7 @@
} else if (newIndex > 250)
newIndex = 250;
newName[newIndex++] = CRC_MARK;
- valueCRC = udf_crc(fidName, fidNameLen, 0);
+ valueCRC = crc_itu_t(0, fidName, fidNameLen);
newName[newIndex++] = hexChar[(valueCRC & 0xf000) >> 12];
newName[newIndex++] = hexChar[(valueCRC & 0x0f00) >> 8];
newName[newIndex++] = hexChar[(valueCRC & 0x00f0) >> 4];
diff --git a/include/asm-ia64/mca.h b/include/asm-ia64/mca.h
index f1663aa..18a4321 100644
--- a/include/asm-ia64/mca.h
+++ b/include/asm-ia64/mca.h
@@ -157,6 +157,7 @@
struct ia64_mca_notify_die {
struct ia64_sal_os_state *sos;
int *monarch_cpu;
+ int *data;
};
DECLARE_PER_CPU(u64, ia64_mca_pal_base);
diff --git a/include/asm-sh/i2c-sh7760.h b/include/asm-sh/i2c-sh7760.h
new file mode 100644
index 0000000..2418211
--- /dev/null
+++ b/include/asm-sh/i2c-sh7760.h
@@ -0,0 +1,22 @@
+/*
+ * MMIO/IRQ and platform data for SH7760 I2C channels
+ */
+
+#ifndef _I2C_SH7760_H_
+#define _I2C_SH7760_H_
+
+#define SH7760_I2C_DEVNAME "sh7760-i2c"
+
+#define SH7760_I2C0_MMIO 0xFE140000
+#define SH7760_I2C0_MMIOEND 0xFE14003B
+#define SH7760_I2C0_IRQ 62
+
+#define SH7760_I2C1_MMIO 0xFE150000
+#define SH7760_I2C1_MMIOEND 0xFE15003B
+#define SH7760_I2C1_IRQ 63
+
+struct sh7760_i2c_platdata {
+ unsigned int speed_khz;
+};
+
+#endif
diff --git a/include/linux/Kbuild b/include/linux/Kbuild
index b3d9ccd..cbb5ccb 100644
--- a/include/linux/Kbuild
+++ b/include/linux/Kbuild
@@ -100,7 +100,7 @@
header-y += jffs2.h
header-y += keyctl.h
header-y += limits.h
-header-y += lock_dlm_plock.h
+header-y += dlm_plock.h
header-y += magic.h
header-y += major.h
header-y += matroxfb.h
@@ -150,6 +150,7 @@
header-y += tipc.h
header-y += tipc_config.h
header-y += toshiba.h
+header-y += udf_fs_i.h
header-y += ultrasound.h
header-y += un.h
header-y += utime.h
@@ -210,7 +211,9 @@
unifdef-y += hdlc.h
unifdef-y += hdreg.h
unifdef-y += hdsmart.h
+unifdef-y += hid.h
unifdef-y += hiddev.h
+unifdef-y += hidraw.h
unifdef-y += hpet.h
unifdef-y += i2c.h
unifdef-y += i2c-dev.h
@@ -334,7 +337,6 @@
unifdef-y += timex.h
unifdef-y += tty.h
unifdef-y += types.h
-unifdef-y += udf_fs_i.h
unifdef-y += udp.h
unifdef-y += uinput.h
unifdef-y += uio.h
diff --git a/include/linux/dlm.h b/include/linux/dlm.h
index c743fbc..203a025 100644
--- a/include/linux/dlm.h
+++ b/include/linux/dlm.h
@@ -21,10 +21,7 @@
/* Lock levels and flags are here */
#include <linux/dlmconstants.h>
-
-
-#define DLM_RESNAME_MAXLEN 64
-
+#include <linux/types.h>
typedef void dlm_lockspace_t;
@@ -63,7 +60,7 @@
struct dlm_lksb {
int sb_status;
- uint32_t sb_lkid;
+ __u32 sb_lkid;
char sb_flags;
char * sb_lvbptr;
};
diff --git a/include/linux/dlm_device.h b/include/linux/dlm_device.h
index 9642277..c603450 100644
--- a/include/linux/dlm_device.h
+++ b/include/linux/dlm_device.h
@@ -11,10 +11,16 @@
*******************************************************************************
******************************************************************************/
+#ifndef _LINUX_DLM_DEVICE_H
+#define _LINUX_DLM_DEVICE_H
+
/* This is the device interface for dlm, most users will use a library
* interface.
*/
+#include <linux/dlm.h>
+#include <linux/types.h>
+
#define DLM_USER_LVB_LEN 32
/* Version of the device interface */
@@ -94,10 +100,9 @@
#define DLM_USER_PURGE 6
#define DLM_USER_DEADLOCK 7
-/* Arbitrary length restriction */
-#define MAX_LS_NAME_LEN 64
-
/* Lockspace flags */
#define DLM_USER_LSFLG_AUTOFREE 1
#define DLM_USER_LSFLG_FORCEFREE 2
+#endif
+
diff --git a/include/linux/dlm_plock.h b/include/linux/dlm_plock.h
new file mode 100644
index 0000000..18d5fdb
--- /dev/null
+++ b/include/linux/dlm_plock.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2005-2008 Red Hat, Inc. All rights reserved.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU General Public License v.2.
+ */
+
+#ifndef __DLM_PLOCK_DOT_H__
+#define __DLM_PLOCK_DOT_H__
+
+#define DLM_PLOCK_MISC_NAME "dlm_plock"
+
+#define DLM_PLOCK_VERSION_MAJOR 1
+#define DLM_PLOCK_VERSION_MINOR 1
+#define DLM_PLOCK_VERSION_PATCH 0
+
+enum {
+ DLM_PLOCK_OP_LOCK = 1,
+ DLM_PLOCK_OP_UNLOCK,
+ DLM_PLOCK_OP_GET,
+};
+
+struct dlm_plock_info {
+ __u32 version[3];
+ __u8 optype;
+ __u8 ex;
+ __u8 wait;
+ __u8 pad;
+ __u32 pid;
+ __s32 nodeid;
+ __s32 rv;
+ __u32 fsid;
+ __u64 number;
+ __u64 start;
+ __u64 end;
+ __u64 owner;
+};
+
+#ifdef __KERNEL__
+int dlm_posix_lock(dlm_lockspace_t *lockspace, u64 number, struct file *file,
+ int cmd, struct file_lock *fl);
+int dlm_posix_unlock(dlm_lockspace_t *lockspace, u64 number, struct file *file,
+ struct file_lock *fl);
+int dlm_posix_get(dlm_lockspace_t *lockspace, u64 number, struct file *file,
+ struct file_lock *fl);
+#endif /* __KERNEL__ */
+
+#endif
+
diff --git a/include/linux/dlmconstants.h b/include/linux/dlmconstants.h
index fddb3d3..47bf08d 100644
--- a/include/linux/dlmconstants.h
+++ b/include/linux/dlmconstants.h
@@ -18,6 +18,10 @@
* Constants used by DLM interface.
*/
+#define DLM_LOCKSPACE_LEN 64
+#define DLM_RESNAME_MAXLEN 64
+
+
/*
* Lock Modes
*/
diff --git a/include/linux/hid.h b/include/linux/hid.h
index 74ff575..d951ec4 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -284,6 +284,7 @@
#define HID_QUIRK_2WHEEL_MOUSE_HACK_B8 0x02000000
#define HID_QUIRK_HWHEEL_WHEEL_INVERT 0x04000000
#define HID_QUIRK_MICROSOFT_KEYS 0x08000000
+#define HID_QUIRK_FULLSPEED_INTERVAL 0x10000000
/*
* Separate quirks for runtime report descriptor fixup
@@ -296,6 +297,8 @@
#define HID_QUIRK_RDESC_MACBOOK_JIS 0x00000010
#define HID_QUIRK_RDESC_BUTTON_CONSUMER 0x00000020
#define HID_QUIRK_RDESC_SAMSUNG_REMOTE 0x00000040
+#define HID_QUIRK_RDESC_MICROSOFT_RECV_1028 0x00000080
+#define HID_QUIRK_RDESC_SUNPLUS_WDESKTOP 0x00000100
/*
* This is the global environment of the parser. This information is
@@ -320,7 +323,7 @@
* This is the local environment. It is persistent up the next main-item.
*/
-#define HID_MAX_USAGES 8192
+#define HID_MAX_USAGES 12288
#define HID_DEFAULT_NUM_COLLECTIONS 16
struct hid_local {
@@ -421,6 +424,7 @@
#define HID_RESET_PENDING 4
#define HID_SUSPENDED 5
#define HID_CLEAR_HALT 6
+#define HID_DISCONNECTED 7
struct hid_input {
struct list_head list;
@@ -452,8 +456,6 @@
void *hidraw;
int minor; /* Hiddev minor number */
- wait_queue_head_t wait; /* For sleeping */
-
int open; /* is the device open by anyone? */
char name[128]; /* Device name */
char phys[64]; /* Device physical location */
@@ -530,14 +532,12 @@
int hidinput_mapping_quirks(struct hid_usage *, struct input_dev *, unsigned long **, int *);
int hidinput_event_quirks(struct hid_device *, struct hid_field *, struct hid_usage *, __s32);
int hidinput_apple_event(struct hid_device *, struct input_dev *, struct hid_usage *, __s32);
-void hid_input_field(struct hid_device *hid, struct hid_field *field, __u8 *data, int interrupt);
void hid_output_report(struct hid_report *report, __u8 *data);
void hid_free_device(struct hid_device *device);
struct hid_device *hid_parse_report(__u8 *start, unsigned size);
/* HID quirks API */
u32 usbhid_lookup_quirk(const u16 idVendor, const u16 idProduct);
-int usbhid_modify_dquirk(const u16 idVendor, const u16 idProduct, const u32 quirks);
int usbhid_quirks_init(char **quirks_param);
void usbhid_quirks_exit(void);
void usbhid_fixup_report_descriptor(const u16, const u16, char *, unsigned, char **);
@@ -546,6 +546,7 @@
int hid_ff_init(struct hid_device *hid);
int hid_lgff_init(struct hid_device *hid);
+int hid_lg2ff_init(struct hid_device *hid);
int hid_plff_init(struct hid_device *hid);
int hid_tmff_init(struct hid_device *hid);
int hid_zpff_init(struct hid_device *hid);
@@ -566,7 +567,11 @@
#define dbg_hid_line(format, arg...) if (hid_debug) \
printk(format, ## arg)
#else
-#define dbg_hid(format, arg...) do {} while (0)
+static inline int __attribute__((format(printf, 1, 2)))
+dbg_hid(const char *fmt, ...)
+{
+ return 0;
+}
#define dbg_hid_line dbg_hid
#endif
diff --git a/include/linux/hidraw.h b/include/linux/hidraw.h
index 0536f29..dbb5c8c 100644
--- a/include/linux/hidraw.h
+++ b/include/linux/hidraw.h
@@ -16,6 +16,7 @@
*/
#include <linux/hid.h>
+#include <linux/types.h>
struct hidraw_report_descriptor {
__u32 size;
diff --git a/include/linux/i2c-algo-pca.h b/include/linux/i2c-algo-pca.h
index fce47c0..adcb3dc 100644
--- a/include/linux/i2c-algo-pca.h
+++ b/include/linux/i2c-algo-pca.h
@@ -1,14 +1,41 @@
#ifndef _LINUX_I2C_ALGO_PCA_H
#define _LINUX_I2C_ALGO_PCA_H
+/* Clock speeds for the bus */
+#define I2C_PCA_CON_330kHz 0x00
+#define I2C_PCA_CON_288kHz 0x01
+#define I2C_PCA_CON_217kHz 0x02
+#define I2C_PCA_CON_146kHz 0x03
+#define I2C_PCA_CON_88kHz 0x04
+#define I2C_PCA_CON_59kHz 0x05
+#define I2C_PCA_CON_44kHz 0x06
+#define I2C_PCA_CON_36kHz 0x07
+
+/* PCA9564 registers */
+#define I2C_PCA_STA 0x00 /* STATUS Read Only */
+#define I2C_PCA_TO 0x00 /* TIMEOUT Write Only */
+#define I2C_PCA_DAT 0x01 /* DATA Read/Write */
+#define I2C_PCA_ADR 0x02 /* OWN ADR Read/Write */
+#define I2C_PCA_CON 0x03 /* CONTROL Read/Write */
+
+#define I2C_PCA_CON_AA 0x80 /* Assert Acknowledge */
+#define I2C_PCA_CON_ENSIO 0x40 /* Enable */
+#define I2C_PCA_CON_STA 0x20 /* Start */
+#define I2C_PCA_CON_STO 0x10 /* Stop */
+#define I2C_PCA_CON_SI 0x08 /* Serial Interrupt */
+#define I2C_PCA_CON_CR 0x07 /* Clock Rate (MASK) */
+
struct i2c_algo_pca_data {
- int (*get_own) (struct i2c_algo_pca_data *adap); /* Obtain own address */
- int (*get_clock) (struct i2c_algo_pca_data *adap);
- void (*write_byte) (struct i2c_algo_pca_data *adap, int reg, int val);
- int (*read_byte) (struct i2c_algo_pca_data *adap, int reg);
- int (*wait_for_interrupt) (struct i2c_algo_pca_data *adap);
+ void *data; /* private low level data */
+ void (*write_byte) (void *data, int reg, int val);
+ int (*read_byte) (void *data, int reg);
+ int (*wait_for_completion) (void *data);
+ void (*reset_chip) (void *data);
+ /* i2c_clock values are defined in linux/i2c-algo-pca.h */
+ unsigned int i2c_clock;
};
int i2c_pca_add_bus(struct i2c_adapter *);
+int i2c_pca_add_numbered_bus(struct i2c_adapter *);
#endif /* _LINUX_I2C_ALGO_PCA_H */
diff --git a/include/linux/i2c-pca-platform.h b/include/linux/i2c-pca-platform.h
new file mode 100644
index 0000000..3d19187
--- /dev/null
+++ b/include/linux/i2c-pca-platform.h
@@ -0,0 +1,12 @@
+#ifndef I2C_PCA9564_PLATFORM_H
+#define I2C_PCA9564_PLATFORM_H
+
+struct i2c_pca9564_pf_platform_data {
+ int gpio; /* pin to reset chip. driver will work when
+ * not supplied (negative value), but it
+ * cannot exit some error conditions then */
+ int i2c_clock_speed; /* values are defined in linux/i2c-algo-pca.h */
+ int timeout; /* timeout = this value * 10us */
+};
+
+#endif /* I2C_PCA9564_PLATFORM_H */
diff --git a/include/linux/lock_dlm_plock.h b/include/linux/lock_dlm_plock.h
deleted file mode 100644
index fc34151..0000000
--- a/include/linux/lock_dlm_plock.h
+++ /dev/null
@@ -1,41 +0,0 @@
-/*
- * Copyright (C) 2005 Red Hat, Inc. All rights reserved.
- *
- * This copyrighted material is made available to anyone wishing to use,
- * modify, copy, or redistribute it subject to the terms and conditions
- * of the GNU General Public License v.2.
- */
-
-#ifndef __LOCK_DLM_PLOCK_DOT_H__
-#define __LOCK_DLM_PLOCK_DOT_H__
-
-#define GDLM_PLOCK_MISC_NAME "lock_dlm_plock"
-
-#define GDLM_PLOCK_VERSION_MAJOR 1
-#define GDLM_PLOCK_VERSION_MINOR 1
-#define GDLM_PLOCK_VERSION_PATCH 0
-
-enum {
- GDLM_PLOCK_OP_LOCK = 1,
- GDLM_PLOCK_OP_UNLOCK,
- GDLM_PLOCK_OP_GET,
-};
-
-struct gdlm_plock_info {
- __u32 version[3];
- __u8 optype;
- __u8 ex;
- __u8 wait;
- __u8 pad;
- __u32 pid;
- __s32 nodeid;
- __s32 rv;
- __u32 fsid;
- __u64 number;
- __u64 start;
- __u64 end;
- __u64 owner;
-};
-
-#endif
-
diff --git a/include/linux/udf_fs.h b/include/linux/udf_fs.h
deleted file mode 100644
index aa88654..0000000
--- a/include/linux/udf_fs.h
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- * udf_fs.h
- *
- * PURPOSE
- * Included by fs/filesystems.c
- *
- * DESCRIPTION
- * OSTA-UDF(tm) = Optical Storage Technology Association
- * Universal Disk Format.
- *
- * This code is based on version 2.50 of the UDF specification,
- * and revision 3 of the ECMA 167 standard [equivalent to ISO 13346].
- * http://www.osta.org/ * http://www.ecma.ch/
- * http://www.iso.org/
- *
- * COPYRIGHT
- * This file is distributed under the terms of the GNU General Public
- * License (GPL). Copies of the GPL can be obtained from:
- * ftp://prep.ai.mit.edu/pub/gnu/GPL
- * Each contributing author retains all rights to their own work.
- *
- * (C) 1999-2004 Ben Fennema
- * (C) 1999-2000 Stelias Computing Inc
- *
- * HISTORY
- *
- */
-
-#ifndef _UDF_FS_H
-#define _UDF_FS_H 1
-
-#define UDF_PREALLOCATE
-#define UDF_DEFAULT_PREALLOC_BLOCKS 8
-
-#undef UDFFS_DEBUG
-
-#ifdef UDFFS_DEBUG
-#define udf_debug(f, a...) \
- do { \
- printk (KERN_DEBUG "UDF-fs DEBUG %s:%d:%s: ", \
- __FILE__, __LINE__, __FUNCTION__); \
- printk (f, ##a); \
- } while (0)
-#else
-#define udf_debug(f, a...) /**/
-#endif
-
-#define udf_info(f, a...) \
- printk (KERN_INFO "UDF-fs INFO " f, ##a);
-
-#endif /* _UDF_FS_H */
diff --git a/include/linux/udf_fs_i.h b/include/linux/udf_fs_i.h
index ffaf056..3536965 100644
--- a/include/linux/udf_fs_i.h
+++ b/include/linux/udf_fs_i.h
@@ -9,41 +9,10 @@
* ftp://prep.ai.mit.edu/pub/gnu/GPL
* Each contributing author retains all rights to their own work.
*/
-
#ifndef _UDF_FS_I_H
#define _UDF_FS_I_H 1
-#ifdef __KERNEL__
-
-struct udf_inode_info
-{
- struct timespec i_crtime;
- /* Physical address of inode */
- kernel_lb_addr i_location;
- __u64 i_unique;
- __u32 i_lenEAttr;
- __u32 i_lenAlloc;
- __u64 i_lenExtents;
- __u32 i_next_alloc_block;
- __u32 i_next_alloc_goal;
- unsigned i_alloc_type : 3;
- unsigned i_efe : 1;
- unsigned i_use : 1;
- unsigned i_strat4096 : 1;
- unsigned reserved : 26;
- union
- {
- short_ad *i_sad;
- long_ad *i_lad;
- __u8 *i_data;
- } i_ext;
- struct inode vfs_inode;
-};
-
-#endif
-
/* exported IOCTLs, we have 'l', 0x40-0x7f */
-
#define UDF_GETEASIZE _IOR('l', 0x40, int)
#define UDF_GETEABLOCK _IOR('l', 0x41, void *)
#define UDF_GETVOLIDENT _IOR('l', 0x42, void *)
diff --git a/include/linux/udf_fs_sb.h b/include/linux/udf_fs_sb.h
deleted file mode 100644
index 9bc4735..0000000
--- a/include/linux/udf_fs_sb.h
+++ /dev/null
@@ -1,117 +0,0 @@
-/*
- * udf_fs_sb.h
- *
- * This include file is for the Linux kernel/module.
- *
- * COPYRIGHT
- * This file is distributed under the terms of the GNU General Public
- * License (GPL). Copies of the GPL can be obtained from:
- * ftp://prep.ai.mit.edu/pub/gnu/GPL
- * Each contributing author retains all rights to their own work.
- */
-
-#ifndef _UDF_FS_SB_H
-#define _UDF_FS_SB_H 1
-
-#include <linux/mutex.h>
-
-#pragma pack(1)
-
-#define UDF_MAX_BLOCK_LOADED 8
-
-#define UDF_TYPE1_MAP15 0x1511U
-#define UDF_VIRTUAL_MAP15 0x1512U
-#define UDF_VIRTUAL_MAP20 0x2012U
-#define UDF_SPARABLE_MAP15 0x1522U
-
-struct udf_sparing_data
-{
- __u16 s_packet_len;
- struct buffer_head *s_spar_map[4];
-};
-
-struct udf_virtual_data
-{
- __u32 s_num_entries;
- __u16 s_start_offset;
-};
-
-struct udf_bitmap
-{
- __u32 s_extLength;
- __u32 s_extPosition;
- __u16 s_nr_groups;
- struct buffer_head **s_block_bitmap;
-};
-
-struct udf_part_map
-{
- union
- {
- struct udf_bitmap *s_bitmap;
- struct inode *s_table;
- } s_uspace;
- union
- {
- struct udf_bitmap *s_bitmap;
- struct inode *s_table;
- } s_fspace;
- __u32 s_partition_root;
- __u32 s_partition_len;
- __u16 s_partition_type;
- __u16 s_partition_num;
- union
- {
- struct udf_sparing_data s_sparing;
- struct udf_virtual_data s_virtual;
- } s_type_specific;
- __u32 (*s_partition_func)(struct super_block *, __u32, __u16, __u32);
- __u16 s_volumeseqnum;
- __u16 s_partition_flags;
-};
-
-#pragma pack()
-
-struct udf_sb_info
-{
- struct udf_part_map *s_partmaps;
- __u8 s_volume_ident[32];
-
- /* Overall info */
- __u16 s_partitions;
- __u16 s_partition;
-
- /* Sector headers */
- __s32 s_session;
- __u32 s_anchor[4];
- __u32 s_last_block;
-
- struct buffer_head *s_lvid_bh;
-
- /* Default permissions */
- mode_t s_umask;
- gid_t s_gid;
- uid_t s_uid;
-
- /* Root Info */
- struct timespec s_record_time;
-
- /* Fileset Info */
- __u16 s_serial_number;
-
- /* highest UDF revision we have recorded to this media */
- __u16 s_udfrev;
-
- /* Miscellaneous flags */
- __u32 s_flags;
-
- /* Encoding info */
- struct nls_table *s_nls_map;
-
- /* VAT inode */
- struct inode *s_vat_inode;
-
- struct mutex s_alloc_mutex;
-};
-
-#endif /* _UDF_FS_SB_H */
diff --git a/kernel/sched.c b/kernel/sched.c
index 57ba7ea..0014b03 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -7035,6 +7035,7 @@
/**
* sched_domain_node_span - get a cpumask for a node's sched_domain
* @node: node whose cpumask we're constructing
+ * @span: resulting cpumask
*
* Given a node, construct a good cpumask for its sched_domain to span. It
* should be one that prevents unnecessary balancing, but also spreads tasks
diff --git a/security/selinux/avc.c b/security/selinux/avc.c
index 1d69f66..95a8ef4 100644
--- a/security/selinux/avc.c
+++ b/security/selinux/avc.c
@@ -312,6 +312,7 @@
if (!spin_trylock_irqsave(&avc_cache.slots_lock[hvalue], flags))
continue;
+ rcu_read_lock();
list_for_each_entry(node, &avc_cache.slots[hvalue], list) {
if (atomic_dec_and_test(&node->ae.used)) {
/* Recently Unused */
@@ -319,11 +320,13 @@
avc_cache_stats_incr(reclaims);
ecx++;
if (ecx >= AVC_CACHE_RECLAIM) {
+ rcu_read_unlock();
spin_unlock_irqrestore(&avc_cache.slots_lock[hvalue], flags);
goto out;
}
}
}
+ rcu_read_unlock();
spin_unlock_irqrestore(&avc_cache.slots_lock[hvalue], flags);
}
out:
@@ -821,8 +824,14 @@
for (i = 0; i < AVC_CACHE_SLOTS; i++) {
spin_lock_irqsave(&avc_cache.slots_lock[i], flag);
+ /*
+ * With preemptable RCU, the outer spinlock does not
+ * prevent RCU grace periods from ending.
+ */
+ rcu_read_lock();
list_for_each_entry(node, &avc_cache.slots[i], list)
avc_node_delete(node);
+ rcu_read_unlock();
spin_unlock_irqrestore(&avc_cache.slots_lock[i], flag);
}
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 38fbb16..308e2cf 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -755,9 +755,18 @@
int set_context = (oldsbsec->flags & CONTEXT_MNT);
int set_rootcontext = (oldsbsec->flags & ROOTCONTEXT_MNT);
- /* we can't error, we can't save the info, this shouldn't get called
- * this early in the boot process. */
- BUG_ON(!ss_initialized);
+ /*
+ * if the parent was able to be mounted it clearly had no special lsm
+ * mount options. thus we can safely put this sb on the list and deal
+ * with it later
+ */
+ if (!ss_initialized) {
+ spin_lock(&sb_security_lock);
+ if (list_empty(&newsbsec->list))
+ list_add(&newsbsec->list, &superblock_security_head);
+ spin_unlock(&sb_security_lock);
+ return;
+ }
/* how can we clone if the old one wasn't set up?? */
BUG_ON(!oldsbsec->initialized);
diff --git a/security/selinux/netif.c b/security/selinux/netif.c
index c658b84..b4e14bc 100644
--- a/security/selinux/netif.c
+++ b/security/selinux/netif.c
@@ -239,11 +239,13 @@
{
struct sel_netif *netif;
+ rcu_read_lock();
spin_lock_bh(&sel_netif_lock);
netif = sel_netif_find(ifindex);
if (netif)
sel_netif_destroy(netif);
spin_unlock_bh(&sel_netif_lock);
+ rcu_read_unlock();
}
/**