Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
[MIPS] BCM47XX: Use new SSB SPROM data structure
[MIPS] WGT634U: Register MTD as platform device.
[MIPS] BCM47xx: Add defconfig file.
[MIPS] RM: fix EISA=n compilation
[MIPS] PCI: Coding style fixes for pcibios_enable_resources.
[MIPS] PCI: Port i386 PCI fixes.
[MIPS] Qemu: finish platform removal
[MIPS] Wire up the timerfd_*() o32 system calls
[MIPS] IP28: Add defconfig file
[MIPS] SB1: Fix CONFIG_SIBYTE_DMA_PAGEOPS build failure.
[MIPS] BCM1480: Remove stray function call resulting in infinite recursion
[MIPS] Fix buggy invocations of kmap_coherent()
[MIPS] Fix broken rm7000/rm9000 interrupt handling
[MIPS] Handle I-cache coherency in flush_cache_range()
[MIPS] IP27: Add missing ~ in DMA code.
[MIPS] Use find_task_by_vpid in system calls
diff --git a/Documentation/networking/tcp.txt b/Documentation/networking/tcp.txt
index 0121edc..7d11bb5 100644
--- a/Documentation/networking/tcp.txt
+++ b/Documentation/networking/tcp.txt
@@ -1,7 +1,7 @@
TCP protocol
============
-Last updated: 21 June 2005
+Last updated: 9 February 2008
Contents
========
@@ -52,9 +52,9 @@
The method that is used to determine which congestion control mechanism is
determined by the setting of the sysctl net.ipv4.tcp_congestion_control.
The default congestion control will be the last one registered (LIFO);
-so if you built everything as modules. the default will be reno. If you
-build with the default's from Kconfig, then BIC will be builtin (not a module)
-and it will end up the default.
+so if you built everything as modules, the default will be reno. If you
+build with the defaults from Kconfig, then CUBIC will be builtin (not a
+module) and it will end up the default.
If you really want a particular default value then you will need
to set it with the sysctl. If you use a sysctl, the module will be autoloaded
diff --git a/arch/mn10300/configs/asb2303_defconfig b/arch/mn10300/configs/asb2303_defconfig
index ca9876a..3aa8906 100644
--- a/arch/mn10300/configs/asb2303_defconfig
+++ b/arch/mn10300/configs/asb2303_defconfig
@@ -1,7 +1,7 @@
#
# Automatically generated make config: don't edit
-# Linux kernel version: 2.6.24-rc2
-# Fri Nov 16 13:36:38 2007
+# Linux kernel version: 2.6.25-rc2
+# Tue Feb 19 18:52:24 2008
#
CONFIG_MN10300=y
CONFIG_AM33=y
@@ -21,6 +21,7 @@
# CONFIG_ARCH_SUPPORTS_AOUT is not set
CONFIG_GENERIC_HARDIRQS=y
# CONFIG_HOTPLUG_CPU is not set
+CONFIG_HZ=1000
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -38,15 +39,16 @@
CONFIG_BSD_PROCESS_ACCT=y
# CONFIG_BSD_PROCESS_ACCT_V3 is not set
# CONFIG_TASKSTATS is not set
-# CONFIG_USER_NS is not set
-# CONFIG_PID_NS is not set
# CONFIG_AUDIT is not set
# CONFIG_IKCONFIG is not set
CONFIG_LOG_BUF_SHIFT=14
# CONFIG_CGROUPS is not set
-# CONFIG_FAIR_GROUP_SCHED is not set
+# CONFIG_GROUP_SCHED is not set
+# CONFIG_USER_SCHED is not set
+# CONFIG_CGROUP_SCHED is not set
# CONFIG_SYSFS_DEPRECATED is not set
# CONFIG_RELAY is not set
+# CONFIG_NAMESPACES is not set
# CONFIG_BLK_DEV_INITRD is not set
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
@@ -57,22 +59,33 @@
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
+CONFIG_COMPAT_BRK=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_ANON_INODES=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
+CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
# CONFIG_VM_EVENT_COUNTERS is not set
CONFIG_SLAB=y
# CONFIG_SLUB is not set
# CONFIG_SLOB is not set
+CONFIG_PROFILING=y
+# CONFIG_MARKERS is not set
+CONFIG_OPROFILE=y
+# CONFIG_HAVE_OPROFILE is not set
+# CONFIG_HAVE_KPROBES is not set
+# CONFIG_PROC_PAGE_MONITOR is not set
+CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
# CONFIG_TINY_SHMEM is not set
CONFIG_BASE_SMALL=0
# CONFIG_MODULES is not set
# CONFIG_BLOCK is not set
+CONFIG_CLASSIC_RCU=y
+# CONFIG_PREEMPT_RCU is not set
#
# Matsushita MN10300 system setup
@@ -206,6 +219,7 @@
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_HAMRADIO is not set
+# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
@@ -311,6 +325,8 @@
# CONFIG_PARPORT is not set
CONFIG_MISC_DEVICES=y
# CONFIG_EEPROM_93CX6 is not set
+# CONFIG_ENCLOSURE_SERVICES is not set
+# CONFIG_HAVE_IDE is not set
#
# SCSI device support
@@ -345,7 +361,6 @@
# CONFIG_WAN is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
-# CONFIG_SHAPER is not set
# CONFIG_NETCONSOLE is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
@@ -405,6 +420,7 @@
# CONFIG_W1 is not set
# CONFIG_POWER_SUPPLY is not set
# CONFIG_HWMON is not set
+# CONFIG_THERMAL is not set
# CONFIG_WATCHDOG is not set
#
@@ -444,6 +460,7 @@
# CONFIG_SOUND is not set
# CONFIG_USB_SUPPORT is not set
# CONFIG_MMC is not set
+# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_RTC_CLASS is not set
@@ -455,10 +472,10 @@
#
# File systems
#
+CONFIG_DNOTIFY=y
CONFIG_INOTIFY=y
CONFIG_INOTIFY_USER=y
# CONFIG_QUOTA is not set
-CONFIG_DNOTIFY=y
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_FUSE_FS is not set
@@ -554,5 +571,3 @@
#
# Profiling support
#
-CONFIG_PROFILING=y
-CONFIG_OPROFILE=y
diff --git a/arch/mn10300/kernel/gdb-io-ttysm.c b/arch/mn10300/kernel/gdb-io-ttysm.c
index c545159..e94c25e 100644
--- a/arch/mn10300/kernel/gdb-io-ttysm.c
+++ b/arch/mn10300/kernel/gdb-io-ttysm.c
@@ -196,6 +196,7 @@
try_again:
/* pull chars out of the buffer */
ix = gdbstub_rx_outp;
+ barrier();
if (ix == gdbstub_rx_inp) {
if (nonblock)
return -EAGAIN;
@@ -207,6 +208,7 @@
ch = gdbstub_rx_buffer[ix++];
st = gdbstub_rx_buffer[ix++];
+ barrier();
gdbstub_rx_outp = ix & (PAGE_SIZE - 1);
st &= SC01STR_RXF | SC01STR_RBF | SC01STR_FEF | SC01STR_PEF |
diff --git a/arch/mn10300/kernel/time.c b/arch/mn10300/kernel/time.c
index ff492e3..babb7c2 100644
--- a/arch/mn10300/kernel/time.c
+++ b/arch/mn10300/kernel/time.c
@@ -84,11 +84,13 @@
/* advance the kernel's time tracking system */
profile_tick(CPU_PROFILING);
do_timer(1);
- update_process_times(user_mode(get_irq_regs()));
check_rtc_time();
}
write_sequnlock(&xtime_lock);
+
+ update_process_times(user_mode(get_irq_regs()));
+
return IRQ_HANDLED;
}
diff --git a/arch/mn10300/kernel/traps.c b/arch/mn10300/kernel/traps.c
index 8b9dc6d..fcb9a03 100644
--- a/arch/mn10300/kernel/traps.c
+++ b/arch/mn10300/kernel/traps.c
@@ -391,7 +391,7 @@
if (code == EXCEP_SYSCALL15 && !user_mode(regs)) {
if (report_bug(regs->pc, regs) == BUG_TRAP_TYPE_BUG) {
#ifdef CONFIG_GDBSTUB
- __gdbstub_bug_trap();
+ gdbstub_intercept(regs, code);
#endif
}
}
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 92a4f7b..b21444b 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -100,7 +100,8 @@
int "Maximum number of CPUs (2-64)"
range 2 64
depends on SMP
- default "32"
+ default "32" if !64BIT
+ default "64" if 64BIT
help
This allows you to specify the maximum number of CPUs which this
kernel will support. The maximum supported value is 64 and the
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index a6a4729..1c59ec1 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -114,24 +114,27 @@
static void default_idle(void)
{
int cpu, rc;
+ int nr_calls = 0;
+ void *hcpu;
#ifdef CONFIG_SMP
struct s390_idle_data *idle;
#endif
/* CPU is going idle. */
cpu = smp_processor_id();
-
+ hcpu = (void *)(long)cpu;
local_irq_disable();
if (need_resched()) {
local_irq_enable();
return;
}
- rc = atomic_notifier_call_chain(&idle_chain,
- S390_CPU_IDLE, (void *)(long) cpu);
- if (rc != NOTIFY_OK && rc != NOTIFY_DONE)
- BUG();
- if (rc != NOTIFY_OK) {
+ rc = __atomic_notifier_call_chain(&idle_chain, S390_CPU_IDLE, hcpu, -1,
+ &nr_calls);
+ if (rc == NOTIFY_BAD) {
+ nr_calls--;
+ __atomic_notifier_call_chain(&idle_chain, S390_CPU_NOT_IDLE,
+ hcpu, nr_calls, NULL);
local_irq_enable();
return;
}
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 8506065..818bd09 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -626,13 +626,17 @@
if (!lowcore)
return -ENOMEM;
async_stack = __get_free_pages(GFP_KERNEL, ASYNC_ORDER);
- if (!async_stack)
- goto out_async_stack;
panic_stack = __get_free_page(GFP_KERNEL);
- if (!panic_stack)
- goto out_panic_stack;
-
- *lowcore = S390_lowcore;
+ if (!panic_stack || !async_stack)
+ goto out;
+ /*
+ * Only need to copy the first 512 bytes from address 0. But since
+ * the compiler emits a warning if src == NULL for memcpy use copy_page
+ * instead. Copies more than needed but this code is not performance
+ * critical.
+ */
+ copy_page(lowcore, &S390_lowcore);
+ memset((void *)lowcore + 512, 0, sizeof(*lowcore) - 512);
lowcore->async_stack = async_stack + ASYNC_SIZE;
lowcore->panic_stack = panic_stack + PAGE_SIZE;
@@ -653,9 +657,8 @@
out_save_area:
free_page(panic_stack);
#endif
-out_panic_stack:
+out:
free_pages(async_stack, ASYNC_ORDER);
-out_async_stack:
free_pages((unsigned long) lowcore, lc_order);
return -ENOMEM;
}
@@ -719,8 +722,8 @@
cpu_lowcore->percpu_offset = __per_cpu_offset[cpu];
cpu_lowcore->current_task = (unsigned long) idle;
cpu_lowcore->cpu_data.cpu_nr = cpu;
- cpu_lowcore->softirq_pending = 0;
- cpu_lowcore->ext_call_fast = 0;
+ cpu_lowcore->kernel_asce = S390_lowcore.kernel_asce;
+ cpu_lowcore->ipl_device = S390_lowcore.ipl_device;
eieio();
while (signal_processor(cpu, sigp_restart) == sigp_busy)
@@ -797,23 +800,43 @@
void __init smp_prepare_cpus(unsigned int max_cpus)
{
+#ifndef CONFIG_64BIT
+ unsigned long save_area = 0;
+#endif
+ unsigned long async_stack, panic_stack;
+ struct _lowcore *lowcore;
unsigned int cpu;
+ int lc_order;
smp_detect_cpus();
/* request the 0x1201 emergency signal external interrupt */
if (register_external_interrupt(0x1201, do_ext_call_interrupt) != 0)
panic("Couldn't request external interrupt 0x1201");
- memset(lowcore_ptr, 0, sizeof(lowcore_ptr));
print_cpu_info(&S390_lowcore.cpu_data);
- smp_alloc_lowcore(smp_processor_id());
+ /* Reallocate current lowcore, but keep its contents. */
+ lc_order = sizeof(long) == 8 ? 1 : 0;
+ lowcore = (void *) __get_free_pages(GFP_KERNEL | GFP_DMA, lc_order);
+ panic_stack = __get_free_page(GFP_KERNEL);
+ async_stack = __get_free_pages(GFP_KERNEL, ASYNC_ORDER);
#ifndef CONFIG_64BIT
if (MACHINE_HAS_IEEE)
- ctl_set_bit(14, 29); /* enable extended save area */
+ save_area = get_zeroed_page(GFP_KERNEL);
#endif
- set_prefix((u32)(unsigned long) lowcore_ptr[smp_processor_id()]);
-
+ local_irq_disable();
+ local_mcck_disable();
+ lowcore_ptr[smp_processor_id()] = lowcore;
+ *lowcore = S390_lowcore;
+ lowcore->panic_stack = panic_stack + PAGE_SIZE;
+ lowcore->async_stack = async_stack + ASYNC_SIZE;
+#ifndef CONFIG_64BIT
+ if (MACHINE_HAS_IEEE)
+ lowcore->extended_save_area_addr = (u32) save_area;
+#endif
+ set_prefix((u32)(unsigned long) lowcore);
+ local_mcck_enable();
+ local_irq_enable();
for_each_possible_cpu(cpu)
if (cpu != smp_processor_id())
smp_create_idle(cpu);
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index 3bbac12..76a5dd1 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -744,7 +744,6 @@
}
}
-#ifdef CONFIG_SMP
static void etr_sync_cpu_start(void *dummy)
{
int *in_sync = dummy;
@@ -777,7 +776,6 @@
static void etr_sync_cpu_end(void *dummy)
{
}
-#endif /* CONFIG_SMP */
/*
* Sync the TOD clock using the port refered to by aibp. This port
diff --git a/arch/s390/lib/uaccess_std.c b/arch/s390/lib/uaccess_std.c
index 28c4500..d2ffbad 100644
--- a/arch/s390/lib/uaccess_std.c
+++ b/arch/s390/lib/uaccess_std.c
@@ -293,10 +293,10 @@
asm volatile(
" sacf 256\n"
- " cs %1,%4,0(%5)\n"
- "0: lr %0,%1\n"
- "1: sacf 0\n"
- EX_TABLE(0b,1b)
+ "0: cs %1,%4,0(%5)\n"
+ "1: lr %0,%1\n"
+ "2: sacf 0\n"
+ EX_TABLE(0b,2b) EX_TABLE(1b,2b)
: "=d" (ret), "+d" (oldval), "=m" (*uaddr)
: "0" (-EFAULT), "d" (newval), "a" (uaddr), "m" (*uaddr)
: "cc", "memory" );
diff --git a/arch/sparc/kernel/process.c b/arch/sparc/kernel/process.c
index 19186ce..0bd69d0 100644
--- a/arch/sparc/kernel/process.c
+++ b/arch/sparc/kernel/process.c
@@ -141,16 +141,12 @@
extern char reboot_command [];
-extern void (*prom_palette)(int);
-
/* XXX cli/sti -> local_irq_xxx here, check this works once SMP is fixed. */
void machine_halt(void)
{
local_irq_enable();
mdelay(8);
local_irq_disable();
- if (prom_palette)
- prom_palette (1);
prom_halt();
panic("Halt failed!");
}
@@ -165,8 +161,6 @@
p = strchr (reboot_command, '\n');
if (p) *p = 0;
- if (prom_palette)
- prom_palette (1);
if (cmd)
prom_reboot(cmd);
if (*reboot_command)
diff --git a/arch/sparc/kernel/setup.c b/arch/sparc/kernel/setup.c
index 3cf78f1..3c13137 100644
--- a/arch/sparc/kernel/setup.c
+++ b/arch/sparc/kernel/setup.c
@@ -65,7 +65,6 @@
*/
extern unsigned long trapbase;
-void (*prom_palette)(int);
/* Pretty sick eh? */
void prom_sync_me(void)
@@ -80,8 +79,6 @@
"nop\n\t"
"nop\n\t" : : "r" (&trapbase));
- if (prom_palette)
- prom_palette(1);
prom_printf("PROM SYNC COMMAND...\n");
show_free_areas();
if(current->pid != 0) {
@@ -191,7 +188,6 @@
extern void sun4c_probe_vac(void);
extern char cputypval;
extern unsigned long start, end;
-extern void panic_setup(char *, int *);
extern unsigned short root_flags;
extern unsigned short root_dev;
diff --git a/arch/sparc/mm/sun4c.c b/arch/sparc/mm/sun4c.c
index c0442e8..2375fe9 100644
--- a/arch/sparc/mm/sun4c.c
+++ b/arch/sparc/mm/sun4c.c
@@ -1941,9 +1941,7 @@
if ((pte = sun4c_pte_alloc_one_fast(mm, address)) != NULL)
return pte;
- pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT);
- if (pte)
- memset(pte, 0, PAGE_SIZE);
+ pte = (pte_t *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT);
return pte;
}
diff --git a/arch/sparc/prom/misc.c b/arch/sparc/prom/misc.c
index 37cff5f..d9fb3af 100644
--- a/arch/sparc/prom/misc.c
+++ b/arch/sparc/prom/misc.c
@@ -45,9 +45,6 @@
spin_unlock_irqrestore(&prom_lock, flags);
}
-/* We want to do this more nicely some day. */
-extern void (*prom_palette)(int);
-
/* Drop into the prom, with the chance to continue with the 'go'
* prom command.
*/
@@ -58,8 +55,6 @@
extern void install_linux_ticker(void);
unsigned long flags;
- if (prom_palette)
- prom_palette (1);
spin_lock_irqsave(&prom_lock, flags);
install_obp_ticker();
(*(romvec->pv_abort))();
@@ -69,8 +64,6 @@
#ifdef CONFIG_SUN_AUXIO
set_auxio(AUXIO_LED, 0);
#endif
- if (prom_palette)
- prom_palette (0);
}
/* Drop into the prom, but completely terminate the program.
diff --git a/arch/sparc64/Kconfig.debug b/arch/sparc64/Kconfig.debug
index a5faa36..6a4d28a 100644
--- a/arch/sparc64/Kconfig.debug
+++ b/arch/sparc64/Kconfig.debug
@@ -23,10 +23,6 @@
depends on DEBUG_KERNEL
bool "Stack Overflow Detection Support"
-config DEBUG_BOOTMEM
- depends on DEBUG_KERNEL
- bool "Debug BOOTMEM initialization"
-
config DEBUG_PAGEALLOC
bool "Debug page memory allocations"
depends on DEBUG_KERNEL && !HIBERNATION
diff --git a/arch/sparc64/Makefile b/arch/sparc64/Makefile
index 01159cb..f0c22f8 100644
--- a/arch/sparc64/Makefile
+++ b/arch/sparc64/Makefile
@@ -12,39 +12,13 @@
CPPFLAGS_vmlinux.lds += -Usparc
-CC := $(shell if $(CC) -m64 -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo $(CC); else echo sparc64-linux-gcc; fi )
-
-NEW_GCC := $(call cc-option-yn, -m64 -mcmodel=medlow)
-NEW_GAS := $(shell if $(LD) -V 2>&1 | grep 'elf64_sparc' > /dev/null; then echo y; else echo n; fi)
-UNDECLARED_REGS := $(shell if $(CC) -c -x assembler /dev/null -Wa,--help | grep undeclared-regs > /dev/null; then echo y; else echo n; fi; )
-
-ifneq ($(NEW_GAS),y)
-AS = sparc64-linux-as
-LD = sparc64-linux-ld
-NM = sparc64-linux-nm
-AR = sparc64-linux-ar
-RANLIB = sparc64-linux-ranlib
-else
-AS := $(AS) -64
LDFLAGS := -m elf64_sparc
-endif
-ifneq ($(UNDECLARED_REGS),y)
-CC_UNDECL =
-else
-CC_UNDECL = -Wa,--undeclared-regs
-AS := $(AS) --undeclared-regs
-endif
-
-ifneq ($(NEW_GCC),y)
- KBUILD_CFLAGS += -pipe -mno-fpu -mtune=ultrasparc -mmedlow \
- -ffixed-g4 -ffixed-g5 -fcall-used-g7 -Wno-sign-compare
-else
- KBUILD_CFLAGS += -m64 -pipe -mno-fpu -mcpu=ultrasparc -mcmodel=medlow \
- -ffixed-g4 -ffixed-g5 -fcall-used-g7 -Wno-sign-compare \
- $(CC_UNDECL)
- KBUILD_AFLAGS += -m64 -mcpu=ultrasparc $(CC_UNDECL)
-endif
+KBUILD_CFLAGS += -m64 -pipe -mno-fpu -mcpu=ultrasparc -mcmodel=medlow \
+ -ffixed-g4 -ffixed-g5 -fcall-used-g7 -Wno-sign-compare \
+ -Wa,--undeclared-regs
+KBUILD_CFLAGS += $(call cc-option,-mtune=ultrasparc3)
+KBUILD_AFLAGS += -m64 -mcpu=ultrasparc -Wa,--undeclared-regs
ifeq ($(CONFIG_MCOUNT),y)
KBUILD_CFLAGS += -pg
diff --git a/arch/sparc64/defconfig b/arch/sparc64/defconfig
index 833d74b..250958d 100644
--- a/arch/sparc64/defconfig
+++ b/arch/sparc64/defconfig
@@ -1,7 +1,7 @@
#
# Automatically generated make config: don't edit
-# Linux kernel version: 2.6.24
-# Tue Feb 5 17:28:19 2008
+# Linux kernel version: 2.6.25-rc1
+# Sun Feb 17 22:44:12 2008
#
CONFIG_SPARC=y
CONFIG_SPARC64=y
@@ -10,6 +10,7 @@
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_64BIT=y
CONFIG_MMU=y
+CONFIG_IOMMU_HELPER=y
CONFIG_QUICKLIST=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_LOCKDEP_SUPPORT=y
@@ -21,6 +22,7 @@
CONFIG_ARCH_NO_VIRT_TO_BUS=y
CONFIG_OF=y
CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y
+CONFIG_ARCH_SUPPORTS_AOUT=y
CONFIG_SPARC64_PAGE_SIZE_8KB=y
# CONFIG_SPARC64_PAGE_SIZE_64KB is not set
# CONFIG_SPARC64_PAGE_SIZE_512KB is not set
@@ -49,8 +51,6 @@
CONFIG_POSIX_MQUEUE=y
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_TASKSTATS is not set
-# CONFIG_USER_NS is not set
-# CONFIG_PID_NS is not set
# CONFIG_AUDIT is not set
# CONFIG_IKCONFIG is not set
CONFIG_LOG_BUF_SHIFT=18
@@ -60,6 +60,11 @@
# CONFIG_FAIR_CGROUP_SCHED is not set
CONFIG_SYSFS_DEPRECATED=y
CONFIG_RELAY=y
+CONFIG_NAMESPACES=y
+# CONFIG_UTS_NS is not set
+# CONFIG_IPC_NS is not set
+# CONFIG_USER_NS is not set
+# CONFIG_PID_NS is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
@@ -74,6 +79,7 @@
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
+# CONFIG_COMPAT_BRK is not set
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_ANON_INODES=y
@@ -176,13 +182,13 @@
CONFIG_SUN_OPENPROMFS=m
CONFIG_SPARC32_COMPAT=y
CONFIG_COMPAT=y
-CONFIG_BINFMT_ELF32=y
# CONFIG_BINFMT_AOUT32 is not set
#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
+CONFIG_COMPAT_BINFMT_ELF=y
CONFIG_BINFMT_MISC=m
CONFIG_SOLARIS_EMUL=y
CONFIG_SCHED_SMT=y
@@ -354,6 +360,8 @@
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_SGI_IOC4 is not set
# CONFIG_TIFM_CORE is not set
+# CONFIG_ENCLOSURE_SERVICES is not set
+CONFIG_HAVE_IDE=y
CONFIG_IDE=y
CONFIG_BLK_DEV_IDE=y
@@ -376,6 +384,7 @@
#
CONFIG_IDE_GENERIC=y
# CONFIG_BLK_DEV_PLATFORM is not set
+CONFIG_BLK_DEV_IDEDMA_SFF=y
#
# PCI IDE chipsets support
@@ -775,7 +784,6 @@
# CONFIG_SENSORS_EEPROM is not set
# CONFIG_SENSORS_PCF8574 is not set
# CONFIG_PCF8575 is not set
-# CONFIG_SENSORS_PCA9539 is not set
# CONFIG_SENSORS_PCF8591 is not set
# CONFIG_TPS65010 is not set
# CONFIG_SENSORS_MAX6875 is not set
@@ -831,6 +839,7 @@
# CONFIG_SENSORS_SMSC47M1 is not set
# CONFIG_SENSORS_SMSC47M192 is not set
# CONFIG_SENSORS_SMSC47B397 is not set
+# CONFIG_SENSORS_ADS7828 is not set
# CONFIG_SENSORS_THMC50 is not set
# CONFIG_SENSORS_VIA686A is not set
# CONFIG_SENSORS_VT1211 is not set
@@ -840,9 +849,11 @@
# CONFIG_SENSORS_W83792D is not set
# CONFIG_SENSORS_W83793 is not set
# CONFIG_SENSORS_W83L785TS is not set
+# CONFIG_SENSORS_W83L786NG is not set
# CONFIG_SENSORS_W83627HF is not set
# CONFIG_SENSORS_W83627EHF is not set
# CONFIG_HWMON_DEBUG_CHIP is not set
+# CONFIG_THERMAL is not set
# CONFIG_WATCHDOG is not set
#
@@ -1201,6 +1212,7 @@
# CONFIG_USB_TEST is not set
# CONFIG_USB_GADGET is not set
# CONFIG_MMC is not set
+# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_INFINIBAND is not set
# CONFIG_RTC_CLASS is not set
@@ -1242,12 +1254,10 @@
# CONFIG_XFS_FS is not set
# CONFIG_GFS2_FS is not set
# CONFIG_OCFS2_FS is not set
-# CONFIG_MINIX_FS is not set
-# CONFIG_ROMFS_FS is not set
+CONFIG_DNOTIFY=y
CONFIG_INOTIFY=y
CONFIG_INOTIFY_USER=y
# CONFIG_QUOTA is not set
-CONFIG_DNOTIFY=y
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_FUSE_FS is not set
@@ -1291,8 +1301,10 @@
# CONFIG_EFS_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_VXFS_FS is not set
+# CONFIG_MINIX_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
+# CONFIG_ROMFS_FS is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
CONFIG_NETWORK_FILESYSTEMS=y
@@ -1370,6 +1382,7 @@
CONFIG_SCHEDSTATS=y
# CONFIG_TIMER_STATS is not set
# CONFIG_SLUB_DEBUG_ON is not set
+# CONFIG_SLUB_STATS is not set
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_RT_MUTEX_TESTER is not set
# CONFIG_DEBUG_SPINLOCK is not set
@@ -1385,7 +1398,6 @@
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_LIST is not set
# CONFIG_DEBUG_SG is not set
-CONFIG_FORCED_INLINING=y
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_KPROBES_SANITY_TEST is not set
@@ -1396,7 +1408,6 @@
# CONFIG_DEBUG_STACK_USAGE is not set
# CONFIG_DEBUG_DCFLUSH is not set
# CONFIG_STACK_DEBUG is not set
-# CONFIG_DEBUG_BOOTMEM is not set
# CONFIG_DEBUG_PAGEALLOC is not set
#
diff --git a/arch/sparc64/kernel/iommu.c b/arch/sparc64/kernel/iommu.c
index d3276ebc..0e347ff 100644
--- a/arch/sparc64/kernel/iommu.c
+++ b/arch/sparc64/kernel/iommu.c
@@ -200,12 +200,11 @@
/* Allocate and initialize the dummy page which we
* set inactive IO PTEs to point to.
*/
- iommu->dummy_page = __get_free_pages(GFP_KERNEL, 0);
+ iommu->dummy_page = get_zeroed_page(GFP_KERNEL);
if (!iommu->dummy_page) {
printk(KERN_ERR "IOMMU: Error, gfp(dummy_page) failed.\n");
goto out_free_map;
}
- memset((void *)iommu->dummy_page, 0, PAGE_SIZE);
iommu->dummy_page_pa = (unsigned long) __pa(iommu->dummy_page);
/* Now allocate and setup the IOMMU page table itself. */
diff --git a/arch/sparc64/kernel/pci.c b/arch/sparc64/kernel/pci.c
index a61c38f..545356b 100644
--- a/arch/sparc64/kernel/pci.c
+++ b/arch/sparc64/kernel/pci.c
@@ -225,20 +225,6 @@
return 0;
}
-static int __init pci_is_controller(const char *model_name, int namelen, struct device_node *dp)
-{
- int i;
-
- for (i = 0; i < PCI_NUM_CONTROLLER_TYPES; i++) {
- if (!strncmp(model_name,
- pci_controller_table[i].model_name,
- namelen)) {
- return 1;
- }
- }
- return 0;
-}
-
static int __init pci_controller_scan(int (*handler)(const char *, int, struct device_node *))
{
struct device_node *dp;
@@ -273,13 +259,6 @@
return count;
}
-
-/* Is there some PCI controller in the system? */
-int __init pcic_present(void)
-{
- return pci_controller_scan(pci_is_controller);
-}
-
/* Find each controller in the system, attach and initialize
* software state structure for each and link into the
* pci_pbm_root. Setup the controller enough such
diff --git a/arch/sparc64/kernel/process.c b/arch/sparc64/kernel/process.c
index 1b23791..6eceac5 100644
--- a/arch/sparc64/kernel/process.c
+++ b/arch/sparc64/kernel/process.c
@@ -113,16 +113,9 @@
extern char reboot_command [];
-extern void (*prom_palette)(int);
-extern void (*prom_keyboard)(void);
-
void machine_halt(void)
{
sstate_halt();
- if (prom_palette)
- prom_palette (1);
- if (prom_keyboard)
- prom_keyboard();
prom_halt();
panic("Halt failed!");
}
@@ -130,10 +123,6 @@
void machine_alt_power_off(void)
{
sstate_poweroff();
- if (prom_palette)
- prom_palette(1);
- if (prom_keyboard)
- prom_keyboard();
prom_halt_power_off();
panic("Power-off failed!");
}
@@ -145,10 +134,6 @@
sstate_reboot();
p = strchr (reboot_command, '\n');
if (p) *p = 0;
- if (prom_palette)
- prom_palette (1);
- if (prom_keyboard)
- prom_keyboard();
if (cmd)
prom_reboot(cmd);
if (*reboot_command)
diff --git a/arch/sparc64/kernel/prom.c b/arch/sparc64/kernel/prom.c
index a246e96..68964dd 100644
--- a/arch/sparc64/kernel/prom.c
+++ b/arch/sparc64/kernel/prom.c
@@ -1716,7 +1716,6 @@
of_console_device = dp;
- prom_printf(msg, of_console_path);
printk(msg, of_console_path);
}
diff --git a/arch/sparc64/kernel/setup.c b/arch/sparc64/kernel/setup.c
index 5964d86..d036dbe 100644
--- a/arch/sparc64/kernel/setup.c
+++ b/arch/sparc64/kernel/setup.c
@@ -68,33 +68,22 @@
16 /* orig-video-points */
};
-void (*prom_palette)(int);
-void (*prom_keyboard)(void);
-
static void
prom_console_write(struct console *con, const char *s, unsigned n)
{
prom_write(s, n);
}
-unsigned int boot_flags = 0;
-#define BOOTME_DEBUG 0x1
-
/* Exported for mm/init.c:paging_init. */
unsigned long cmdline_memory_size = 0;
-static struct console prom_debug_console = {
- .name = "debug",
+static struct console prom_early_console = {
+ .name = "earlyprom",
.write = prom_console_write,
- .flags = CON_PRINTBUFFER,
+ .flags = CON_PRINTBUFFER | CON_BOOT,
.index = -1,
};
-/* XXX Implement this at some point... */
-void kernel_enter_debugger(void)
-{
-}
-
/*
* Process kernel command line switches that are specific to the
* SPARC or that require special low-level processing.
@@ -103,8 +92,6 @@
{
switch (c) {
case 'd':
- boot_flags |= BOOTME_DEBUG;
- break;
case 's':
break;
case 'h':
@@ -112,8 +99,7 @@
prom_halt();
break;
case 'p':
- /* Use PROM debug console. */
- register_console(&prom_debug_console);
+ /* Just ignore, this behavior is now the default. */
break;
case 'P':
/* Force UltraSPARC-III P-Cache on. */
@@ -168,8 +154,6 @@
}
}
-extern void panic_setup(char *, int *);
-
extern unsigned short root_flags;
extern unsigned short root_dev;
extern unsigned short ram_flags;
@@ -296,6 +280,9 @@
*cmdline_p = prom_getbootargs();
strcpy(boot_command_line, *cmdline_p);
+ boot_flags_init(*cmdline_p);
+ register_console(&prom_early_console);
+
if (tlb_type == hypervisor)
printk("ARCH: SUN4V\n");
else
@@ -307,8 +294,6 @@
conswitchp = &prom_con;
#endif
- boot_flags_init(*cmdline_p);
-
idprom_init();
if (!root_flags)
diff --git a/arch/sparc64/kernel/sparc64_ksyms.c b/arch/sparc64/kernel/sparc64_ksyms.c
index 68db089..51fa773 100644
--- a/arch/sparc64/kernel/sparc64_ksyms.c
+++ b/arch/sparc64/kernel/sparc64_ksyms.c
@@ -85,7 +85,6 @@
extern long sparc32_open(const char __user * filename, int flags, int mode);
extern int io_remap_pfn_range(struct vm_area_struct *vma, unsigned long from,
unsigned long pfn, unsigned long size, pgprot_t prot);
-extern void (*prom_palette)(int);
extern int __ashrdi3(int, int);
@@ -355,5 +354,3 @@
EXPORT_SYMBOL(xor_niagara_3);
EXPORT_SYMBOL(xor_niagara_4);
EXPORT_SYMBOL(xor_niagara_5);
-
-EXPORT_SYMBOL(prom_palette);
diff --git a/arch/sparc64/kernel/unaligned.c b/arch/sparc64/kernel/unaligned.c
index dc7bf1b..1a511e9f 100644
--- a/arch/sparc64/kernel/unaligned.c
+++ b/arch/sparc64/kernel/unaligned.c
@@ -7,6 +7,7 @@
*/
+#include <linux/jiffies.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/mm.h>
@@ -283,7 +284,7 @@
{
static unsigned long count, last_time;
- if (jiffies - last_time > 5 * HZ)
+ if (time_after(jiffies, last_time + 5 * HZ))
count = 0;
if (count < 5) {
last_time = jiffies;
diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c
index e726c45..9e6bca2 100644
--- a/arch/sparc64/mm/init.c
+++ b/arch/sparc64/mm/init.c
@@ -618,9 +618,9 @@
read_obp_translations();
/* Now fixup OBP's idea about where we really are mapped. */
- prom_printf("Remapping the kernel... ");
+ printk("Remapping the kernel... ");
remap_kernel();
- prom_printf("done.\n");
+ printk("done.\n");
}
void prom_world(int enter)
@@ -739,11 +739,6 @@
avoid_end = PAGE_ALIGN(initrd_end);
#endif
-#ifdef CONFIG_DEBUG_BOOTMEM
- prom_printf("choose_bootmap_pfn: kern[%lx:%lx] avoid[%lx:%lx]\n",
- kern_base, PAGE_ALIGN(kern_base + kern_size),
- avoid_start, avoid_end);
-#endif
for (i = 0; i < pavail_ents; i++) {
unsigned long start, end;
@@ -777,10 +772,6 @@
}
/* OK, it doesn't overlap anything, use it. */
-#ifdef CONFIG_DEBUG_BOOTMEM
- prom_printf("choose_bootmap_pfn: Using %lx [%lx]\n",
- start >> PAGE_SHIFT, start);
-#endif
return start >> PAGE_SHIFT;
}
}
@@ -920,10 +911,6 @@
unsigned long bootmap_pfn, bytes_avail, size;
int i;
-#ifdef CONFIG_DEBUG_BOOTMEM
- prom_printf("bootmem_init: Scan pavail, ");
-#endif
-
bytes_avail = 0UL;
for (i = 0; i < pavail_ents; i++) {
end_of_phys_memory = pavail[i].phys_addr +
@@ -970,33 +957,20 @@
bootmap_pfn = choose_bootmap_pfn(min_low_pfn, end_pfn);
-#ifdef CONFIG_DEBUG_BOOTMEM
- prom_printf("init_bootmem(min[%lx], bootmap[%lx], max[%lx])\n",
- min_low_pfn, bootmap_pfn, max_low_pfn);
-#endif
bootmap_size = init_bootmem_node(NODE_DATA(0), bootmap_pfn,
min_low_pfn, end_pfn);
/* Now register the available physical memory with the
* allocator.
*/
- for (i = 0; i < pavail_ents; i++) {
-#ifdef CONFIG_DEBUG_BOOTMEM
- prom_printf("free_bootmem(pavail:%d): base[%lx] size[%lx]\n",
- i, pavail[i].phys_addr, pavail[i].reg_size);
-#endif
+ for (i = 0; i < pavail_ents; i++)
free_bootmem(pavail[i].phys_addr, pavail[i].reg_size);
- }
#ifdef CONFIG_BLK_DEV_INITRD
if (initrd_start) {
size = initrd_end - initrd_start;
/* Reserve the initrd image area. */
-#ifdef CONFIG_DEBUG_BOOTMEM
- prom_printf("reserve_bootmem(initrd): base[%llx] size[%lx]\n",
- initrd_start, initrd_end);
-#endif
reserve_bootmem(initrd_start, size, BOOTMEM_DEFAULT);
initrd_start += PAGE_OFFSET;
@@ -1004,9 +978,6 @@
}
#endif
/* Reserve the kernel text/data/bss. */
-#ifdef CONFIG_DEBUG_BOOTMEM
- prom_printf("reserve_bootmem(kernel): base[%lx] size[%lx]\n", kern_base, kern_size);
-#endif
reserve_bootmem(kern_base, kern_size, BOOTMEM_DEFAULT);
*pages_avail -= PAGE_ALIGN(kern_size) >> PAGE_SHIFT;
@@ -1020,10 +991,6 @@
* in free_all_bootmem.
*/
size = bootmap_size;
-#ifdef CONFIG_DEBUG_BOOTMEM
- prom_printf("reserve_bootmem(bootmap): base[%lx] size[%lx]\n",
- (bootmap_pfn << PAGE_SHIFT), size);
-#endif
reserve_bootmem((bootmap_pfn << PAGE_SHIFT), size, BOOTMEM_DEFAULT);
for (i = 0; i < pavail_ents; i++) {
@@ -1031,10 +998,6 @@
start_pfn = pavail[i].phys_addr >> PAGE_SHIFT;
end_pfn = (start_pfn + (pavail[i].reg_size >> PAGE_SHIFT));
-#ifdef CONFIG_DEBUG_BOOTMEM
- prom_printf("memory_present(0, %lx, %lx)\n",
- start_pfn, end_pfn);
-#endif
memory_present(0, start_pfn, end_pfn);
}
@@ -1451,7 +1414,7 @@
zholes_size);
}
- prom_printf("Booting Linux...\n");
+ printk("Booting Linux...\n");
central_probe();
cpu_probe();
@@ -1549,10 +1512,6 @@
high_memory = __va(last_valid_pfn << PAGE_SHIFT);
-#ifdef CONFIG_DEBUG_BOOTMEM
- prom_printf("mem_init: Calling free_all_bootmem().\n");
-#endif
-
/* We subtract one to account for the mem_map_zero page
* allocated below.
*/
diff --git a/arch/sparc64/prom/misc.c b/arch/sparc64/prom/misc.c
index bbec752..47a877a 100644
--- a/arch/sparc64/prom/misc.c
+++ b/arch/sparc64/prom/misc.c
@@ -55,9 +55,6 @@
P1275_INOUT(1, 1), fstring);
}
-/* We want to do this more nicely some day. */
-extern void (*prom_palette)(int);
-
#ifdef CONFIG_SMP
extern void smp_capture(void);
extern void smp_release(void);
@@ -72,9 +69,6 @@
local_irq_save(flags);
- if (prom_palette)
- prom_palette(1);
-
#ifdef CONFIG_SMP
smp_capture();
#endif
@@ -85,9 +79,6 @@
smp_release();
#endif
- if (prom_palette)
- prom_palette(0);
-
local_irq_restore(flags);
}
diff --git a/arch/xtensa/Makefile b/arch/xtensa/Makefile
index 56685a8..4bd1e14 100644
--- a/arch/xtensa/Makefile
+++ b/arch/xtensa/Makefile
@@ -59,7 +59,7 @@
head-y := arch/xtensa/kernel/head.o
core-y += arch/xtensa/kernel/ arch/xtensa/mm/
ifneq ($(PLATFORM),)
-core-y += arch/xtensa/platform-$(PLATFORM)/
+core-y += arch/xtensa/platforms/$(PLATFORM)/
endif
libs-y += arch/xtensa/lib/ $(LIBGCC)
diff --git a/arch/xtensa/boot/boot-elf/Makefile b/arch/xtensa/boot/boot-elf/Makefile
index 734db7f..08e8814 100644
--- a/arch/xtensa/boot/boot-elf/Makefile
+++ b/arch/xtensa/boot/boot-elf/Makefile
@@ -14,25 +14,26 @@
endif
export OBJCOPY_ARGS
+export CPPFLAGS_boot.lds += -P -C
boot-y := bootstrap.o
OBJS := $(addprefix $(obj)/,$(boot-y))
-Image: vmlinux $(OBJS)
- $(OBJCOPY) --strip-all -R .comment -R .xt.insn -O binary \
+Image: vmlinux $(OBJS) arch/$(ARCH)/boot/boot-elf/boot.lds
+ $(OBJCOPY) --strip-all -R .comment -R .note.gnu.build-id -O binary \
vmlinux vmlinux.tmp
$(OBJCOPY) $(OBJCOPY_ARGS) -R .comment \
--add-section image=vmlinux.tmp \
--set-section-flags image=contents,alloc,load,load,data \
$(OBJS) $@.tmp
$(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) \
- -T $(srctree)/arch/$(ARCH)/boot/boot-elf/boot.ld \
+ -T arch/$(ARCH)/boot/boot-elf/boot.lds \
-o arch/$(ARCH)/boot/$@.elf $@.tmp
rm -f $@.tmp vmlinux.tmp
Image.initrd: vmlinux $(OBJS)
- $(OBJCOPY) --strip-all -R .comment -R .xt.insn -O binary \
+ $(OBJCOPY) --strip-all -R .comment -R .note.gnu.build-id -O binary \
--add-section .initrd=arch/$(ARCH)/boot/ramdisk \
--set-section-flags .initrd=contents,alloc,load,load,data \
vmlinux vmlinux.tmp
diff --git a/arch/xtensa/boot/boot-elf/boot.ld b/arch/xtensa/boot/boot-elf/boot.lds.S
similarity index 89%
rename from arch/xtensa/boot/boot-elf/boot.ld
rename to arch/xtensa/boot/boot-elf/boot.lds.S
index 4ab06a0..849dfca 100644
--- a/arch/xtensa/boot/boot-elf/boot.ld
+++ b/arch/xtensa/boot/boot-elf/boot.lds.S
@@ -1,4 +1,6 @@
+#include <asm/variant/core.h>
OUTPUT_ARCH(xtensa)
+ENTRY(_ResetVector)
SECTIONS
{
@@ -61,7 +63,7 @@
_end = .;
_param_start = .;
- .ResetVector.text 0xfe000020 :
+ .ResetVector.text XCHAL_RESET_VECTOR_VADDR :
{
*(.ResetVector.text)
}
diff --git a/arch/xtensa/boot/boot-redboot/Makefile b/arch/xtensa/boot/boot-redboot/Makefile
index 74d15d0..872029b 100644
--- a/arch/xtensa/boot/boot-redboot/Makefile
+++ b/arch/xtensa/boot/boot-redboot/Makefile
@@ -22,7 +22,7 @@
LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
zImage: vmlinux $(OBJS) $(LIBS)
- $(OBJCOPY) --strip-all -R .comment -R .xt.insn -O binary \
+ $(OBJCOPY) --strip-all -R .comment -R .note.gnu.build-id -O binary \
vmlinux vmlinux.tmp
gzip -vf9 vmlinux.tmp
$(OBJCOPY) $(OBJCOPY_ARGS) -R .comment \
diff --git a/arch/xtensa/boot/boot-redboot/boot.ld b/arch/xtensa/boot/boot-redboot/boot.ld
index 65b7264..774db20 100644
--- a/arch/xtensa/boot/boot-redboot/boot.ld
+++ b/arch/xtensa/boot/boot-redboot/boot.ld
@@ -2,7 +2,7 @@
SECTIONS
{
- .start 0xD0200000 : { *(.start) }
+ .start 0xD1000000 : { *(.start) }
.text :
{
diff --git a/arch/xtensa/kernel/asm-offsets.c b/arch/xtensa/kernel/asm-offsets.c
index d5ffe7b..ef63ada 100644
--- a/arch/xtensa/kernel/asm-offsets.c
+++ b/arch/xtensa/kernel/asm-offsets.c
@@ -21,7 +21,6 @@
#include <linux/mm.h>
#include <asm/ptrace.h>
-#include <asm/processor.h>
#include <asm/uaccess.h>
#define DEFINE(sym, val) asm volatile("\n->" #sym " %0 " #val : : "i" (val))
@@ -64,6 +63,8 @@
DEFINE(PT_SIZE, sizeof(struct pt_regs));
DEFINE(PT_AREG_END, offsetof (struct pt_regs, areg[XCHAL_NUM_AREGS]));
DEFINE(PT_USER_SIZE, offsetof(struct pt_regs, areg[XCHAL_NUM_AREGS]));
+ DEFINE(PT_XTREGS_OPT, offsetof(struct pt_regs, xtregs_opt));
+ DEFINE(XTREGS_OPT_SIZE, sizeof(xtregs_opt_t));
/* struct task_struct */
DEFINE(TASK_PTRACE, offsetof (struct task_struct, ptrace));
@@ -77,7 +78,19 @@
/* struct thread_info (offset from start_struct) */
DEFINE(THREAD_RA, offsetof (struct task_struct, thread.ra));
DEFINE(THREAD_SP, offsetof (struct task_struct, thread.sp));
- DEFINE(THREAD_CP_SAVE, offsetof (struct task_struct, thread.cp_save));
+ DEFINE(THREAD_CPENABLE, offsetof (struct thread_info, cpenable));
+#if XTENSA_HAVE_COPROCESSORS
+ DEFINE(THREAD_XTREGS_CP0, offsetof (struct thread_info, xtregs_cp));
+ DEFINE(THREAD_XTREGS_CP1, offsetof (struct thread_info, xtregs_cp));
+ DEFINE(THREAD_XTREGS_CP2, offsetof (struct thread_info, xtregs_cp));
+ DEFINE(THREAD_XTREGS_CP3, offsetof (struct thread_info, xtregs_cp));
+ DEFINE(THREAD_XTREGS_CP4, offsetof (struct thread_info, xtregs_cp));
+ DEFINE(THREAD_XTREGS_CP5, offsetof (struct thread_info, xtregs_cp));
+ DEFINE(THREAD_XTREGS_CP6, offsetof (struct thread_info, xtregs_cp));
+ DEFINE(THREAD_XTREGS_CP7, offsetof (struct thread_info, xtregs_cp));
+#endif
+ DEFINE(THREAD_XTREGS_USER, offsetof (struct thread_info, xtregs_user));
+ DEFINE(XTREGS_USER_SIZE, sizeof(xtregs_user_t));
DEFINE(THREAD_CURRENT_DS, offsetof (struct task_struct, thread.current_ds));
/* struct mm_struct */
diff --git a/arch/xtensa/kernel/coprocessor.S b/arch/xtensa/kernel/coprocessor.S
index 01bcb9f..2bc1e14 100644
--- a/arch/xtensa/kernel/coprocessor.S
+++ b/arch/xtensa/kernel/coprocessor.S
@@ -8,193 +8,328 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (C) 2003 - 2005 Tensilica Inc.
- *
- * Marc Gauthier <marc@tensilica.com> <marc@alumni.uwaterloo.ca>
+ * Copyright (C) 2003 - 2007 Tensilica Inc.
*/
-/*
- * This module contains a table that describes the layout of the various
- * custom registers and states associated with each coprocessor, as well
- * as those not associated with any coprocessor ("extra state").
- * This table is included with core dumps and is available via the ptrace
- * interface, allowing the layout of such register/state information to
- * be modified in the kernel without affecting the debugger. Each
- * register or state is identified using a 32-bit "libdb target number"
- * assigned when the Xtensa processor is generated.
- */
#include <linux/linkage.h>
+#include <asm/asm-offsets.h>
#include <asm/processor.h>
+#include <asm/coprocessor.h>
+#include <asm/thread_info.h>
+#include <asm/uaccess.h>
+#include <asm/unistd.h>
+#include <asm/ptrace.h>
+#include <asm/current.h>
+#include <asm/pgtable.h>
+#include <asm/page.h>
+#include <asm/signal.h>
+#include <asm/tlbflush.h>
-#if XCHAL_HAVE_CP
+/*
+ * Entry condition:
+ *
+ * a0: trashed, original value saved on stack (PT_AREG0)
+ * a1: a1
+ * a2: new stack pointer, original in DEPC
+ * a3: dispatch table
+ * depc: a2, original value saved on stack (PT_DEPC)
+ * excsave_1: a3
+ *
+ * PT_DEPC >= VALID_DOUBLE_EXCEPTION_ADDRESS: double exception, DEPC
+ * < VALID_DOUBLE_EXCEPTION_ADDRESS: regular exception
+ */
-#define CP_LAST ((XCHAL_CP_MAX - 1) * COPROCESSOR_INFO_SIZE)
+/* IO protection is currently unsupported. */
-ENTRY(release_coprocessors)
+ENTRY(fast_io_protect)
+ wsr a0, EXCSAVE_1
+ movi a0, unrecoverable_exception
+ callx0 a0
- entry a1, 16
- # a2: task
- movi a3, 1 << XCHAL_CP_MAX # a3: coprocessor-bit
- movi a4, coprocessor_info+CP_LAST # a4: owner-table
- # a5: tmp
- movi a6, 0 # a6: 0
- rsil a7, LOCKLEVEL # a7: PS
+#if XTENSA_HAVE_COPROCESSORS
-1: /* Check if task is coprocessor owner of coprocessor[i]. */
+/*
+ * Macros for lazy context switch.
+ */
- l32i a5, a4, COPROCESSOR_INFO_OWNER
- srli a3, a3, 1
+#define SAVE_CP_REGS(x) \
+ .align 4; \
+ .Lsave_cp_regs_cp##x: \
+ .if XTENSA_HAVE_COPROCESSOR(x); \
+ xchal_cp##x##_store a2 a4 a5 a6 a7; \
+ .endif; \
+ jx a0
+
+#define SAVE_CP_REGS_TAB(x) \
+ .if XTENSA_HAVE_COPROCESSOR(x); \
+ .long .Lsave_cp_regs_cp##x - .Lsave_cp_regs_jump_table; \
+ .else; \
+ .long 0; \
+ .endif; \
+ .long THREAD_XTREGS_CP##x
+
+
+#define LOAD_CP_REGS(x) \
+ .align 4; \
+ .Lload_cp_regs_cp##x: \
+ .if XTENSA_HAVE_COPROCESSOR(x); \
+ xchal_cp##x##_load a2 a4 a5 a6 a7; \
+ .endif; \
+ jx a0
+
+#define LOAD_CP_REGS_TAB(x) \
+ .if XTENSA_HAVE_COPROCESSOR(x); \
+ .long .Lload_cp_regs_cp##x - .Lload_cp_regs_jump_table; \
+ .else; \
+ .long 0; \
+ .endif; \
+ .long THREAD_XTREGS_CP##x
+
+ SAVE_CP_REGS(0)
+ SAVE_CP_REGS(1)
+ SAVE_CP_REGS(2)
+ SAVE_CP_REGS(3)
+ SAVE_CP_REGS(4)
+ SAVE_CP_REGS(5)
+ SAVE_CP_REGS(6)
+ SAVE_CP_REGS(7)
+
+ LOAD_CP_REGS(0)
+ LOAD_CP_REGS(1)
+ LOAD_CP_REGS(2)
+ LOAD_CP_REGS(3)
+ LOAD_CP_REGS(4)
+ LOAD_CP_REGS(5)
+ LOAD_CP_REGS(6)
+ LOAD_CP_REGS(7)
+
+ .align 4
+.Lsave_cp_regs_jump_table:
+ SAVE_CP_REGS_TAB(0)
+ SAVE_CP_REGS_TAB(1)
+ SAVE_CP_REGS_TAB(2)
+ SAVE_CP_REGS_TAB(3)
+ SAVE_CP_REGS_TAB(4)
+ SAVE_CP_REGS_TAB(5)
+ SAVE_CP_REGS_TAB(6)
+ SAVE_CP_REGS_TAB(7)
+
+.Lload_cp_regs_jump_table:
+ LOAD_CP_REGS_TAB(0)
+ LOAD_CP_REGS_TAB(1)
+ LOAD_CP_REGS_TAB(2)
+ LOAD_CP_REGS_TAB(3)
+ LOAD_CP_REGS_TAB(4)
+ LOAD_CP_REGS_TAB(5)
+ LOAD_CP_REGS_TAB(6)
+ LOAD_CP_REGS_TAB(7)
+
+/*
+ * coprocessor_save(buffer, index)
+ * a2 a3
+ * coprocessor_load(buffer, index)
+ * a2 a3
+ *
+ * Save or load coprocessor registers for coprocessor 'index'.
+ * The register values are saved to or loaded from them 'buffer' address.
+ *
+ * Note that these functions don't update the coprocessor_owner information!
+ *
+ */
+
+ENTRY(coprocessor_save)
+ entry a1, 32
+ s32i a0, a1, 0
+ movi a0, .Lsave_cp_regs_jump_table
+ addx8 a3, a3, a0
+ l32i a3, a3, 0
beqz a3, 1f
- addi a4, a4, -8
- beq a2, a5, 1b
-
- /* Found an entry: Clear entry CPENABLE bit to disable CP. */
-
- rsr a5, CPENABLE
- s32i a6, a4, COPROCESSOR_INFO_OWNER
- xor a5, a3, a5
- wsr a5, CPENABLE
-
- bnez a3, 1b
-
-1: wsr a7, PS
- rsync
+ add a0, a0, a3
+ callx0 a0
+1: l32i a0, a1, 0
retw
-
-ENTRY(disable_coprocessor)
- entry sp, 16
- rsil a7, LOCKLEVEL
- rsr a3, CPENABLE
- movi a4, 1
- ssl a2
- sll a4, a4
- and a4, a3, a4
- xor a3, a3, a4
- wsr a3, CPENABLE
- wsr a7, PS
- rsync
+ENTRY(coprocessor_load)
+ entry a1, 32
+ s32i a0, a1, 0
+ movi a0, .Lload_cp_regs_jump_table
+ addx4 a3, a3, a0
+ l32i a3, a3, 0
+ beqz a3, 1f
+ add a0, a0, a3
+ callx0 a0
+1: l32i a0, a1, 0
retw
-ENTRY(enable_coprocessor)
- entry sp, 16
- rsil a7, LOCKLEVEL
- rsr a3, CPENABLE
- movi a4, 1
- ssl a2
- sll a4, a4
- or a3, a3, a4
- wsr a3, CPENABLE
- wsr a7, PS
- rsync
- retw
-
-
-ENTRY(save_coprocessor_extra)
- entry sp, 16
- xchal_extra_store_funcbody
- retw
-
-ENTRY(restore_coprocessor_extra)
- entry sp, 16
- xchal_extra_load_funcbody
- retw
-
-ENTRY(save_coprocessor_registers)
- entry sp, 16
- xchal_cpi_store_funcbody
- retw
-
-ENTRY(restore_coprocessor_registers)
- entry sp, 16
- xchal_cpi_load_funcbody
- retw
-
-
/*
- * The Xtensa compile-time HAL (core.h) XCHAL_*_SA_CONTENTS_LIBDB macros
- * describe the contents of coprocessor & extra save areas in terms of
- * undefined CONTENTS_LIBDB_{SREG,UREG,REGF} macros. We define these
- * latter macros here; they expand into a table of the format we want.
- * The general format is:
+ * coprocessor_flush(struct task_info*, index)
+ * a2 a3
+ * coprocessor_restore(struct task_info*, index)
+ * a2 a3
*
- * CONTENTS_LIBDB_SREG(libdbnum, offset, size, align, rsv1, name, sregnum,
- * bitmask, rsv2, rsv3)
- * CONTENTS_LIBDB_UREG(libdbnum, offset, size, align, rsv1, name, uregnum,
- * bitmask, rsv2, rsv3)
- * CONTENTS_LIBDB_REGF(libdbnum, offset, size, align, rsv1, name, index,
- * numentries, contentsize, regname_base,
- * regfile_name, rsv2, rsv3)
+ * Save or load coprocessor registers for coprocessor 'index'.
+ * The register values are saved to or loaded from the coprocessor area
+ * inside the task_info structure.
*
- * For this table, we only care about the <libdbnum>, <offset> and <size>
- * fields.
+ * Note that these functions don't update the coprocessor_owner information!
+ *
*/
-/* Map all XCHAL CONTENTS macros to the reg_entry asm macro defined below: */
-#define CONTENTS_LIBDB_SREG(libdbnum,offset,size,align,rsv1,name,sregnum, \
- bitmask, rsv2, rsv3) \
- reg_entry libdbnum, offset, size ;
-#define CONTENTS_LIBDB_UREG(libdbnum,offset,size,align,rsv1,name,uregnum, \
- bitmask, rsv2, rsv3) \
- reg_entry libdbnum, offset, size ;
-#define CONTENTS_LIBDB_REGF(libdbnum, offset, size, align, rsv1, name, index, \
- numentries, contentsize, regname_base, \
- regfile_name, rsv2, rsv3) \
- reg_entry libdbnum, offset, size ;
+ENTRY(coprocessor_flush)
+ entry a1, 32
+ s32i a0, a1, 0
+ movi a0, .Lsave_cp_regs_jump_table
+ addx8 a3, a3, a0
+ l32i a4, a3, 4
+ l32i a3, a3, 0
+ add a2, a2, a4
+ beqz a3, 1f
+ add a0, a0, a3
+ callx0 a0
+1: l32i a0, a1, 0
+ retw
-/* A single table entry: */
- .macro reg_entry libdbnum, offset, size
- .ifne (__last_offset-(__last_group_offset+\offset))
- /* padding entry */
- .word (0xFC000000+__last_offset-(__last_group_offset+\offset))
- .endif
- .word \libdbnum /* actual entry */
- .set __last_offset, __last_group_offset+\offset+\size
- .endm /* reg_entry */
-
-
-/* Table entry that marks the beginning of a group (coprocessor or "extra"): */
- .macro reg_group cpnum, num_entries, align
- .set __last_group_offset, (__last_offset + \align- 1) & -\align
- .ifne \num_entries
- .word 0xFD000000+(\cpnum<<16)+\num_entries
- .endif
- .endm /* reg_group */
+ENTRY(coprocessor_restore)
+ entry a1, 32
+ s32i a0, a1, 0
+ movi a0, .Lload_cp_regs_jump_table
+ addx4 a3, a3, a0
+ l32i a4, a3, 4
+ l32i a3, a3, 0
+ add a2, a2, a4
+ beqz a3, 1f
+ add a0, a0, a3
+ callx0 a0
+1: l32i a0, a1, 0
+ retw
/*
- * Register info tables.
+ * Entry condition:
+ *
+ * a0: trashed, original value saved on stack (PT_AREG0)
+ * a1: a1
+ * a2: new stack pointer, original in DEPC
+ * a3: dispatch table
+ * depc: a2, original value saved on stack (PT_DEPC)
+ * excsave_1: a3
+ *
+ * PT_DEPC >= VALID_DOUBLE_EXCEPTION_ADDRESS: double exception, DEPC
+ * < VALID_DOUBLE_EXCEPTION_ADDRESS: regular exception
*/
- .section .rodata, "a"
- .globl _xtensa_reginfo_tables
- .globl _xtensa_reginfo_table_size
- .align 4
-_xtensa_reginfo_table_size:
- .word _xtensa_reginfo_table_end - _xtensa_reginfo_tables
+ENTRY(fast_coprocessor_double)
+ wsr a0, EXCSAVE_1
+ movi a0, unrecoverable_exception
+ callx0 a0
-_xtensa_reginfo_tables:
- .set __last_offset, 0
- reg_group 0xFF, XCHAL_EXTRA_SA_CONTENTS_LIBDB_NUM, XCHAL_EXTRA_SA_ALIGN
- XCHAL_EXTRA_SA_CONTENTS_LIBDB
- reg_group 0, XCHAL_CP0_SA_CONTENTS_LIBDB_NUM, XCHAL_CP0_SA_ALIGN
- XCHAL_CP0_SA_CONTENTS_LIBDB
- reg_group 1, XCHAL_CP1_SA_CONTENTS_LIBDB_NUM, XCHAL_CP1_SA_ALIGN
- XCHAL_CP1_SA_CONTENTS_LIBDB
- reg_group 2, XCHAL_CP2_SA_CONTENTS_LIBDB_NUM, XCHAL_CP2_SA_ALIGN
- XCHAL_CP2_SA_CONTENTS_LIBDB
- reg_group 3, XCHAL_CP3_SA_CONTENTS_LIBDB_NUM, XCHAL_CP3_SA_ALIGN
- XCHAL_CP3_SA_CONTENTS_LIBDB
- reg_group 4, XCHAL_CP4_SA_CONTENTS_LIBDB_NUM, XCHAL_CP4_SA_ALIGN
- XCHAL_CP4_SA_CONTENTS_LIBDB
- reg_group 5, XCHAL_CP5_SA_CONTENTS_LIBDB_NUM, XCHAL_CP5_SA_ALIGN
- XCHAL_CP5_SA_CONTENTS_LIBDB
- reg_group 6, XCHAL_CP6_SA_CONTENTS_LIBDB_NUM, XCHAL_CP6_SA_ALIGN
- XCHAL_CP6_SA_CONTENTS_LIBDB
- reg_group 7, XCHAL_CP7_SA_CONTENTS_LIBDB_NUM, XCHAL_CP7_SA_ALIGN
- XCHAL_CP7_SA_CONTENTS_LIBDB
- .word 0xFC000000 /* invalid register number,marks end of table*/
-_xtensa_reginfo_table_end:
-#endif
+
+ENTRY(fast_coprocessor)
+
+ /* Save remaining registers a1-a3 and SAR */
+
+ xsr a3, EXCSAVE_1
+ s32i a3, a2, PT_AREG3
+ rsr a3, SAR
+ s32i a1, a2, PT_AREG1
+ s32i a3, a2, PT_SAR
+ mov a1, a2
+ rsr a2, DEPC
+ s32i a2, a1, PT_AREG2
+
+ /*
+ * The hal macros require up to 4 temporary registers. We use a3..a6.
+ */
+
+ s32i a4, a1, PT_AREG4
+ s32i a5, a1, PT_AREG5
+ s32i a6, a1, PT_AREG6
+
+ /* Find coprocessor number. Subtract first CP EXCCAUSE from EXCCAUSE */
+
+ rsr a3, EXCCAUSE
+ addi a3, a3, -EXCCAUSE_COPROCESSOR0_DISABLED
+
+ /* Set corresponding CPENABLE bit -> (sar:cp-index, a3: 1<<cp-index)*/
+
+ ssl a3 # SAR: 32 - coprocessor_number
+ movi a2, 1
+ rsr a0, CPENABLE
+ sll a2, a2
+ or a0, a0, a2
+ wsr a0, CPENABLE
+ rsync
+
+ /* Retrieve previous owner. (a3 still holds CP number) */
+
+ movi a0, coprocessor_owner # list of owners
+ addx4 a0, a3, a0 # entry for CP
+ l32i a4, a0, 0
+
+ beqz a4, 1f # skip 'save' if no previous owner
+
+ /* Disable coprocessor for previous owner. (a2 = 1 << CP number) */
+
+ l32i a5, a4, THREAD_CPENABLE
+ xor a5, a5, a2 # (1 << cp-id) still in a2
+ s32i a5, a4, THREAD_CPENABLE
+
+ /*
+ * Get context save area and 'call' save routine.
+ * (a4 still holds previous owner (thread_info), a3 CP number)
+ */
+
+ movi a5, .Lsave_cp_regs_jump_table
+ movi a0, 2f # a0: 'return' address
+ addx8 a3, a3, a5 # a3: coprocessor number
+ l32i a2, a3, 4 # a2: xtregs offset
+ l32i a3, a3, 0 # a3: jump offset
+ add a2, a2, a4
+ add a4, a3, a5 # a4: address of save routine
+ jx a4
+
+ /* Note that only a0 and a1 were preserved. */
+
+2: rsr a3, EXCCAUSE
+ addi a3, a3, -EXCCAUSE_COPROCESSOR0_DISABLED
+ movi a0, coprocessor_owner
+ addx4 a0, a3, a0
+
+ /* Set new 'owner' (a0 points to the CP owner, a3 contains the CP nr) */
+
+1: GET_THREAD_INFO (a4, a1)
+ s32i a4, a0, 0
+
+ /* Get context save area and 'call' load routine. */
+
+ movi a5, .Lload_cp_regs_jump_table
+ movi a0, 1f
+ addx8 a3, a3, a5
+ l32i a2, a3, 4 # a2: xtregs offset
+ l32i a3, a3, 0 # a3: jump offset
+ add a2, a2, a4
+ add a4, a3, a5
+ jx a4
+
+ /* Restore all registers and return from exception handler. */
+
+1: l32i a6, a1, PT_AREG6
+ l32i a5, a1, PT_AREG5
+ l32i a4, a1, PT_AREG4
+
+ l32i a0, a1, PT_SAR
+ l32i a3, a1, PT_AREG3
+ l32i a2, a1, PT_AREG2
+ wsr a0, SAR
+ l32i a0, a1, PT_AREG0
+ l32i a1, a1, PT_AREG1
+
+ rfe
+
+ .data
+ENTRY(coprocessor_owner)
+ .fill XCHAL_CP_MAX, 4, 0
+
+#endif /* XTENSA_HAVE_COPROCESSORS */
diff --git a/arch/xtensa/kernel/entry.S b/arch/xtensa/kernel/entry.S
index 91a689e..dfd35dc 100644
--- a/arch/xtensa/kernel/entry.S
+++ b/arch/xtensa/kernel/entry.S
@@ -25,10 +25,10 @@
#include <asm/page.h>
#include <asm/signal.h>
#include <asm/tlbflush.h>
+#include <asm/variant/tie-asm.h>
/* Unimplemented features. */
-#undef SIGNAL_HANDLING_IN_DOUBLE_EXCEPTION
#undef KERNEL_STACK_OVERFLOW_CHECK
#undef PREEMPTIBLE_KERNEL
#undef ALLOCA_EXCEPTION_IN_IRAM
@@ -214,19 +214,7 @@
/* We are back to the original stack pointer (a1) */
-2:
-#if XCHAL_EXTRA_SA_SIZE
-
- /* For user exceptions, save the extra state into the user's TCB.
- * Note: We must assume that xchal_extra_store_funcbody destroys a2..a15
- */
-
- GET_CURRENT(a2,a1)
- addi a2, a2, THREAD_CP_SAVE
- xchal_extra_store_funcbody
-#endif
-
- /* Now, jump to the common exception handler. */
+2: /* Now, jump to the common exception handler. */
j common_exception
@@ -382,6 +370,10 @@
s32i a2, a1, PT_LBEG
s32i a3, a1, PT_LEND
+ /* Save optional registers. */
+
+ save_xtregs_opt a1 a2 a4 a5 a6 a7 PT_XTREGS_OPT
+
/* Go to second-level dispatcher. Set up parameters to pass to the
* exception handler and call the exception handler.
*/
@@ -403,75 +395,50 @@
/* Jump if we are returning from kernel exceptions. */
1: l32i a3, a1, PT_PS
- _bbsi.l a3, PS_UM_BIT, 2f
- j kernel_exception_exit
+ _bbci.l a3, PS_UM_BIT, 4f
/* Specific to a user exception exit:
* We need to check some flags for signal handling and rescheduling,
* and have to restore WB and WS, extra states, and all registers
* in the register file that were in use in the user task.
- */
-
-2: wsr a3, PS /* disable interrupts */
-
- /* Check for signals (keep interrupts disabled while we read TI_FLAGS)
- * Note: PS.INTLEVEL = 0, PS.EXCM = 1
+ * Note that we don't disable interrupts here.
*/
GET_THREAD_INFO(a2,a1)
l32i a4, a2, TI_FLAGS
- /* Enable interrupts again.
- * Note: When we get here, we certainly have handled any interrupts.
- * (Hint: There is only one user exception frame on stack)
- */
-
- movi a3, 1 << PS_WOE_BIT
-
_bbsi.l a4, TIF_NEED_RESCHED, 3f
_bbci.l a4, TIF_SIGPENDING, 4f
-#ifndef SIGNAL_HANDLING_IN_DOUBLE_EXCEPTION
l32i a4, a1, PT_DEPC
bgeui a4, VALID_DOUBLE_EXCEPTION_ADDRESS, 4f
-#endif
- /* Reenable interrupts and call do_signal() */
+ /* Call do_signal() */
- wsr a3, PS
movi a4, do_signal # int do_signal(struct pt_regs*, sigset_t*)
mov a6, a1
movi a7, 0
callx4 a4
j 1b
-3: /* Reenable interrupts and reschedule */
+3: /* Reschedule */
- wsr a3, PS
movi a4, schedule # void schedule (void)
callx4 a4
j 1b
+4: /* Restore optional registers. */
+
+ load_xtregs_opt a1 a2 a4 a5 a6 a7 PT_XTREGS_OPT
+
+ wsr a3, PS /* disable interrupts */
+
+ _bbci.l a3, PS_UM_BIT, kernel_exception_exit
+
+user_exception_exit:
+
/* Restore the state of the task and return from the exception. */
-4: /* a2 holds GET_CURRENT(a2,a1) */
-
-#if XCHAL_EXTRA_SA_SIZE
-
- /* For user exceptions, restore the extra state from the user's TCB. */
-
- /* Note: a2 still contains GET_CURRENT(a2,a1) */
- addi a2, a2, THREAD_CP_SAVE
- xchal_extra_load_funcbody
-
- /* We must assume that xchal_extra_store_funcbody destroys
- * registers a2..a15. FIXME, this list can eventually be
- * reduced once real register requirements of the macro are
- * finalized. */
-
-#endif /* XCHAL_EXTRA_SA_SIZE */
-
-
/* Switch to the user thread WINDOWBASE. Save SP temporarily in DEPC */
l32i a2, a1, PT_WINDOWBASE
@@ -536,10 +503,6 @@
kernel_exception_exit:
- /* Disable interrupts (a3 holds PT_PS) */
-
- wsr a3, PS
-
#ifdef PREEMPTIBLE_KERNEL
#ifdef CONFIG_PREEMPT
@@ -618,6 +581,8 @@
common_exception_exit:
+ /* Restore address registers. */
+
_bbsi.l a2, 1, 1f
l32i a4, a1, PT_AREG4
l32i a5, a1, PT_AREG5
@@ -1150,7 +1115,6 @@
* excsave_1: a3
*
* Note: We assume the stack pointer is EXC_TABLE_KSTK in the fixup handler.
- * Note: We don't need to save a2 in depc (return value)
*/
ENTRY(fast_syscall_spill_registers)
@@ -1166,29 +1130,31 @@
rsr a0, SAR
xsr a3, EXCSAVE_1 # restore a3 and excsave_1
- s32i a0, a2, PT_AREG4 # store SAR to PT_AREG4
s32i a3, a2, PT_AREG3
+ s32i a4, a2, PT_AREG4
+ s32i a0, a2, PT_AREG5 # store SAR to PT_AREG5
/* The spill routine might clobber a7, a11, and a15. */
- s32i a7, a2, PT_AREG5
- s32i a11, a2, PT_AREG6
- s32i a15, a2, PT_AREG7
+ s32i a7, a2, PT_AREG7
+ s32i a11, a2, PT_AREG11
+ s32i a15, a2, PT_AREG15
- call0 _spill_registers # destroys a3, DEPC, and SAR
+ call0 _spill_registers # destroys a3, a4, and SAR
/* Advance PC, restore registers and SAR, and return from exception. */
- l32i a3, a2, PT_AREG4
+ l32i a3, a2, PT_AREG5
+ l32i a4, a2, PT_AREG4
l32i a0, a2, PT_AREG0
wsr a3, SAR
l32i a3, a2, PT_AREG3
/* Restore clobbered registers. */
- l32i a7, a2, PT_AREG5
- l32i a11, a2, PT_AREG6
- l32i a15, a2, PT_AREG7
+ l32i a7, a2, PT_AREG7
+ l32i a11, a2, PT_AREG11
+ l32i a15, a2, PT_AREG15
movi a2, 0
rfe
@@ -1247,16 +1213,6 @@
* Note: This frame might be the same as above.
*/
-#ifdef SIGNAL_HANDLING_IN_DOUBLE_EXCEPTION
- /* Restore registers we precautiously saved.
- * We have the value of the 'right' a3
- */
-
- l32i a7, a2, PT_AREG5
- l32i a11, a2, PT_AREG6
- l32i a15, a2, PT_AREG7
-#endif
-
/* Setup stack pointer. */
addi a2, a2, -PT_USER_SIZE
@@ -1271,9 +1227,9 @@
movi a3, exc_table
rsr a0, EXCCAUSE
- addx4 a0, a0, a3 # find entry in table
- l32i a0, a0, EXC_TABLE_FAST_USER # load handler
- jx a0
+ addx4 a0, a0, a3 # find entry in table
+ l32i a0, a0, EXC_TABLE_FAST_USER # load handler
+ jx a0
fast_syscall_spill_registers_fixup_return:
@@ -1290,14 +1246,6 @@
s32i a2, a3, EXC_TABLE_PARAM
l32i a2, a3, EXC_TABLE_KSTK
-#ifdef SIGNAL_HANDLING_IN_DOUBLE_EXCEPTION
- /* Save registers again that might be clobbered. */
-
- s32i a7, a2, PT_AREG5
- s32i a11, a2, PT_AREG6
- s32i a15, a2, PT_AREG7
-#endif
-
/* Load WB at the time the exception occurred. */
rsr a3, SAR # WB is still in SAR
@@ -1319,7 +1267,7 @@
* This is not a real function. The following conditions must be met:
*
* - must be called with call0.
- * - uses DEPC, a3 and SAR.
+ * - uses a3, a4 and SAR.
* - the last 'valid' register of each frame are clobbered.
* - the caller must have registered a fixup handler
* (or be inside a critical section)
@@ -1331,41 +1279,39 @@
/*
* Rotate ws so that the current windowbase is at bit 0.
* Assume ws = xxxwww1yy (www1 current window frame).
- * Rotate ws right so that a2 = yyxxxwww1.
+ * Rotate ws right so that a4 = yyxxxwww1.
*/
- wsr a2, DEPC # preserve a2
- rsr a2, WINDOWBASE
- rsr a3, WINDOWSTART
- ssr a2 # holds WB
- slli a2, a3, WSBITS
- or a3, a3, a2 # a2 = xxxwww1yyxxxwww1yy
- srl a3, a3
+ rsr a4, WINDOWBASE
+ rsr a3, WINDOWSTART # a3 = xxxwww1yy
+ ssr a4 # holds WB
+ slli a4, a3, WSBITS
+ or a3, a3, a4 # a3 = xxxwww1yyxxxwww1yy
+ srl a3, a3 # a3 = 00xxxwww1yyxxxwww1
/* We are done if there are no more than the current register frame. */
- extui a3, a3, 1, WSBITS-2 # a3 = 0yyxxxwww
- movi a2, (1 << (WSBITS-1))
+ extui a3, a3, 1, WSBITS-1 # a3 = 0yyxxxwww
+ movi a4, (1 << (WSBITS-1))
_beqz a3, .Lnospill # only one active frame? jump
/* We want 1 at the top, so that we return to the current windowbase */
- or a3, a3, a2 # 1yyxxxwww
+ or a3, a3, a4 # 1yyxxxwww
/* Skip empty frames - get 'oldest' WINDOWSTART-bit. */
wsr a3, WINDOWSTART # save shifted windowstart
- neg a2, a3
- and a3, a2, a3 # first bit set from right: 000010000
+ neg a4, a3
+ and a3, a4, a3 # first bit set from right: 000010000
- ffs_ws a2, a3 # a2: shifts to skip empty frames
+ ffs_ws a4, a3 # a4: shifts to skip empty frames
movi a3, WSBITS
- sub a2, a3, a2 # WSBITS-a2:number of 0-bits from right
- ssr a2 # save in SAR for later.
+ sub a4, a3, a4 # WSBITS-a4:number of 0-bits from right
+ ssr a4 # save in SAR for later.
rsr a3, WINDOWBASE
- add a3, a3, a2
- rsr a2, DEPC # restore a2
+ add a3, a3, a4
wsr a3, WINDOWBASE
rsync
@@ -1394,6 +1340,9 @@
l32e a4, a1, -16
j .Lc12c
+.Lnospill:
+ ret
+
.Lloop: _bbsi.l a3, 1, .Lc4
_bbci.l a3, 2, .Lc12
@@ -1419,9 +1368,7 @@
movi a3, 1
sll a3, a3
wsr a3, WINDOWSTART
-
-.Lnospill:
- jx a0
+ ret
.Lc4: s32e a4, a9, -16
s32e a5, a9, -12
@@ -1830,154 +1777,6 @@
1: j _user_exception
-#if XCHAL_EXTRA_SA_SIZE
-
-#warning fast_coprocessor untested
-
-/*
- * Entry condition:
- *
- * a0: trashed, original value saved on stack (PT_AREG0)
- * a1: a1
- * a2: new stack pointer, original in DEPC
- * a3: dispatch table
- * depc: a2, original value saved on stack (PT_DEPC)
- * excsave_1: a3
- *
- * PT_DEPC >= VALID_DOUBLE_EXCEPTION_ADDRESS: double exception, DEPC
- * < VALID_DOUBLE_EXCEPTION_ADDRESS: regular exception
- */
-
-ENTRY(fast_coprocessor_double)
- wsr a0, EXCSAVE_1
- movi a0, unrecoverable_exception
- callx0 a0
-
-ENTRY(fast_coprocessor)
-
- /* Fatal if we are in a double exception. */
-
- l32i a0, a2, PT_DEPC
- _bgeui a0, VALID_DOUBLE_EXCEPTION_ADDRESS, fast_coprocessor_double
-
- /* Save some registers a1, a3, a4, SAR */
-
- xsr a3, EXCSAVE_1
- s32i a3, a2, PT_AREG3
- rsr a3, SAR
- s32i a4, a2, PT_AREG4
- s32i a1, a2, PT_AREG1
- s32i a5, a1, PT_AREG5
- s32i a3, a2, PT_SAR
- mov a1, a2
-
- /* Currently, the HAL macros only guarantee saving a0 and a1.
- * These can and will be refined in the future, but for now,
- * just save the remaining registers of a2...a15.
- */
- s32i a6, a1, PT_AREG6
- s32i a7, a1, PT_AREG7
- s32i a8, a1, PT_AREG8
- s32i a9, a1, PT_AREG9
- s32i a10, a1, PT_AREG10
- s32i a11, a1, PT_AREG11
- s32i a12, a1, PT_AREG12
- s32i a13, a1, PT_AREG13
- s32i a14, a1, PT_AREG14
- s32i a15, a1, PT_AREG15
-
- /* Find coprocessor number. Subtract first CP EXCCAUSE from EXCCAUSE */
-
- rsr a0, EXCCAUSE
- addi a3, a0, -XCHAL_EXCCAUSE_COPROCESSOR0_DISABLED
-
- /* Set corresponding CPENABLE bit */
-
- movi a4, 1
- ssl a3 # SAR: 32 - coprocessor_number
- rsr a5, CPENABLE
- sll a4, a4
- or a4, a5, a4
- wsr a4, CPENABLE
- rsync
- movi a5, coprocessor_info # list of owner and offset into cp_save
- addx8 a0, a4, a5 # entry for CP
-
- bne a4, a5, .Lload # bit wasn't set before, cp not in use
-
- /* Now compare the current task with the owner of the coprocessor.
- * If they are the same, there is no reason to save or restore any
- * coprocessor state. Having already enabled the coprocessor,
- * branch ahead to return.
- */
- GET_CURRENT(a5,a1)
- l32i a4, a0, COPROCESSOR_INFO_OWNER # a4: current owner for this CP
- beq a4, a5, .Ldone
-
- /* Find location to dump current coprocessor state:
- * task_struct->task_cp_save_offset + coprocessor_offset[coprocessor]
- *
- * Note: a0 pointer to the entry in the coprocessor owner table,
- * a3 coprocessor number,
- * a4 current owner of coprocessor.
- */
- l32i a5, a0, COPROCESSOR_INFO_OFFSET
- addi a2, a4, THREAD_CP_SAVE
- add a2, a2, a5
-
- /* Store current coprocessor states. (a5 still has CP number) */
-
- xchal_cpi_store_funcbody
-
- /* The macro might have destroyed a3 (coprocessor number), but
- * SAR still has 32 - coprocessor_number!
- */
- movi a3, 32
- rsr a4, SAR
- sub a3, a3, a4
-
-.Lload: /* A new task now owns the corpocessors. Save its TCB pointer into
- * the coprocessor owner table.
- *
- * Note: a0 pointer to the entry in the coprocessor owner table,
- * a3 coprocessor number.
- */
- GET_CURRENT(a4,a1)
- s32i a4, a0, 0
-
- /* Find location from where to restore the current coprocessor state.*/
-
- l32i a5, a0, COPROCESSOR_INFO_OFFSET
- addi a2, a4, THREAD_CP_SAVE
- add a2, a2, a4
-
- xchal_cpi_load_funcbody
-
- /* We must assume that the xchal_cpi_store_funcbody macro destroyed
- * registers a2..a15.
- */
-
-.Ldone: l32i a15, a1, PT_AREG15
- l32i a14, a1, PT_AREG14
- l32i a13, a1, PT_AREG13
- l32i a12, a1, PT_AREG12
- l32i a11, a1, PT_AREG11
- l32i a10, a1, PT_AREG10
- l32i a9, a1, PT_AREG9
- l32i a8, a1, PT_AREG8
- l32i a7, a1, PT_AREG7
- l32i a6, a1, PT_AREG6
- l32i a5, a1, PT_AREG5
- l32i a4, a1, PT_AREG4
- l32i a3, a1, PT_AREG3
- l32i a2, a1, PT_AREG2
- l32i a0, a1, PT_AREG0
- l32i a1, a1, PT_AREG1
-
- rfe
-
-#endif /* XCHAL_EXTRA_SA_SIZE */
-
/*
* System Calls.
*
@@ -2086,20 +1885,36 @@
entry a1, 16
- mov a4, a3 # preserve a3
+ mov a12, a2 # preserve 'prev' (a2)
+ mov a13, a3 # and 'next' (a3)
- s32i a0, a2, THREAD_RA # save return address
- s32i a1, a2, THREAD_SP # save stack pointer
+ l32i a4, a2, TASK_THREAD_INFO
+ l32i a5, a3, TASK_THREAD_INFO
- /* Disable ints while we manipulate the stack pointer; spill regs. */
+ save_xtregs_user a4 a6 a8 a9 a10 a11 THREAD_XTREGS_USER
- movi a5, (1 << PS_EXCM_BIT) | LOCKLEVEL
- xsr a5, PS
+ s32i a0, a12, THREAD_RA # save return address
+ s32i a1, a12, THREAD_SP # save stack pointer
+
+ /* Disable ints while we manipulate the stack pointer. */
+
+ movi a14, (1 << PS_EXCM_BIT) | LOCKLEVEL
+ xsr a14, PS
rsr a3, EXCSAVE_1
rsync
s32i a3, a3, EXC_TABLE_FIXUP /* enter critical section */
- call0 _spill_registers
+ /* Switch CPENABLE */
+
+#if (XTENSA_HAVE_COPROCESSORS || XTENSA_HAVE_IO_PORTS)
+ l32i a3, a5, THREAD_CPENABLE
+ xsr a3, CPENABLE
+ s32i a3, a4, THREAD_CPENABLE
+#endif
+
+ /* Flush register file. */
+
+ call0 _spill_registers # destroys a3, a4, and SAR
/* Set kernel stack (and leave critical section)
* Note: It's save to set it here. The stack will not be overwritten
@@ -2107,19 +1922,21 @@
* we return from kernel space.
*/
- l32i a0, a4, TASK_THREAD_INFO
rsr a3, EXCSAVE_1 # exc_table
- movi a1, 0
- addi a0, a0, PT_REGS_OFFSET
- s32i a1, a3, EXC_TABLE_FIXUP
- s32i a0, a3, EXC_TABLE_KSTK
+ movi a6, 0
+ addi a7, a5, PT_REGS_OFFSET
+ s32i a6, a3, EXC_TABLE_FIXUP
+ s32i a7, a3, EXC_TABLE_KSTK
/* restore context of the task that 'next' addresses */
- l32i a0, a4, THREAD_RA /* restore return address */
- l32i a1, a4, THREAD_SP /* restore stack pointer */
+ l32i a0, a13, THREAD_RA # restore return address
+ l32i a1, a13, THREAD_SP # restore stack pointer
- wsr a5, PS
+ load_xtregs_user a5 a6 a8 a9 a10 a11 THREAD_XTREGS_USER
+
+ wsr a14, PS
+ mov a2, a12 # return 'prev'
rsync
retw
diff --git a/arch/xtensa/kernel/module.c b/arch/xtensa/kernel/module.c
index ddf14dc..3981a46 100644
--- a/arch/xtensa/kernel/module.c
+++ b/arch/xtensa/kernel/module.c
@@ -28,7 +28,7 @@
{
if (size == 0)
return NULL;
- return vmalloc(size);
+ return vmalloc_exec(size);
}
void module_free(struct module *mod, void *module_region)
diff --git a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c
index f53d7bd..9185597 100644
--- a/arch/xtensa/kernel/process.c
+++ b/arch/xtensa/kernel/process.c
@@ -52,6 +52,55 @@
EXPORT_SYMBOL(pm_power_off);
+#if XTENSA_HAVE_COPROCESSORS
+
+void coprocessor_release_all(struct thread_info *ti)
+{
+ unsigned long cpenable;
+ int i;
+
+ /* Make sure we don't switch tasks during this operation. */
+
+ preempt_disable();
+
+ /* Walk through all cp owners and release it for the requested one. */
+
+ cpenable = ti->cpenable;
+
+ for (i = 0; i < XCHAL_CP_MAX; i++) {
+ if (coprocessor_owner[i] == ti) {
+ coprocessor_owner[i] = 0;
+ cpenable &= ~(1 << i);
+ }
+ }
+
+ ti->cpenable = cpenable;
+ coprocessor_clear_cpenable();
+
+ preempt_enable();
+}
+
+void coprocessor_flush_all(struct thread_info *ti)
+{
+ unsigned long cpenable;
+ int i;
+
+ preempt_disable();
+
+ cpenable = ti->cpenable;
+
+ for (i = 0; i < XCHAL_CP_MAX; i++) {
+ if ((cpenable & 1) != 0 && coprocessor_owner[i] == ti)
+ coprocessor_flush(ti, i);
+ cpenable >>= 1;
+ }
+
+ preempt_enable();
+}
+
+#endif
+
+
/*
* Powermanagement idle function, if any is provided by the platform.
*/
@@ -71,15 +120,36 @@
}
/*
- * Free current thread data structures etc..
+ * This is called when the thread calls exit().
*/
-
void exit_thread(void)
{
+#if XTENSA_HAVE_COPROCESSORS
+ coprocessor_release_all(current_thread_info());
+#endif
}
+/*
+ * Flush thread state. This is called when a thread does an execve()
+ * Note that we flush coprocessor registers for the case execve fails.
+ */
void flush_thread(void)
{
+#if XTENSA_HAVE_COPROCESSORS
+ struct thread_info *ti = current_thread_info();
+ coprocessor_flush_all(ti);
+ coprocessor_release_all(ti);
+#endif
+}
+
+/*
+ * This is called before the thread is copied.
+ */
+void prepare_to_copy(struct task_struct *tsk)
+{
+#if XTENSA_HAVE_COPROCESSORS
+ coprocessor_flush_all(task_thread_info(tsk));
+#endif
}
/*
@@ -107,6 +177,7 @@
struct task_struct * p, struct pt_regs * regs)
{
struct pt_regs *childregs;
+ struct thread_info *ti;
unsigned long tos;
int user_mode = user_mode(regs);
@@ -128,13 +199,14 @@
p->set_child_tid = p->clear_child_tid = NULL;
p->thread.ra = MAKE_RA_FOR_CALL((unsigned long)ret_from_fork, 0x1);
p->thread.sp = (unsigned long)childregs;
+
if (user_mode(regs)) {
int len = childregs->wmask & ~0xf;
childregs->areg[1] = usp;
memcpy(&childregs->areg[XCHAL_NUM_AREGS - len/4],
®s->areg[XCHAL_NUM_AREGS - len/4], len);
-
+// FIXME: we need to set THREADPTR in thread_info...
if (clone_flags & CLONE_SETTLS)
childregs->areg[2] = childregs->areg[6];
@@ -142,6 +214,12 @@
/* In kernel space, we start a new thread with a new stack. */
childregs->wmask = 1;
}
+
+#if (XTENSA_HAVE_COPROCESSORS || XTENSA_HAVE_IO_PORTS)
+ ti = task_thread_info(p);
+ ti->cpenable = 0;
+#endif
+
return 0;
}
@@ -179,10 +257,6 @@
}
/*
- * do_copy_regs() gathers information from 'struct pt_regs' and
- * 'current->thread.areg[]' to fill in the xtensa_gregset_t
- * structure.
- *
* xtensa_gregset_t and 'struct pt_regs' are vastly different formats
* of processor registers. Besides different ordering,
* xtensa_gregset_t contains non-live register information that
@@ -191,18 +265,19 @@
*
*/
-void do_copy_regs (xtensa_gregset_t *elfregs, struct pt_regs *regs,
- struct task_struct *tsk)
+void xtensa_elf_core_copy_regs (xtensa_gregset_t *elfregs, struct pt_regs *regs)
{
- int i, n, wb_offset;
+ unsigned long wb, ws, wm;
+ int live, last;
- elfregs->xchal_config_id0 = XCHAL_HW_CONFIGID0;
- elfregs->xchal_config_id1 = XCHAL_HW_CONFIGID1;
+ wb = regs->windowbase;
+ ws = regs->windowstart;
+ wm = regs->wmask;
+ ws = ((ws >> wb) | (ws << (WSBITS - wb))) & ((1 << WSBITS) - 1);
- __asm__ __volatile__ ("rsr %0, 176\n" : "=a" (i));
- elfregs->cpux = i;
- __asm__ __volatile__ ("rsr %0, 208\n" : "=a" (i));
- elfregs->cpuy = i;
+ /* Don't leak any random bits. */
+
+ memset(elfregs, 0, sizeof (elfregs));
/* Note: PS.EXCM is not set while user task is running; its
* being set in regs->ps is for exception handling convenience.
@@ -210,204 +285,22 @@
elfregs->pc = regs->pc;
elfregs->ps = (regs->ps & ~(1 << PS_EXCM_BIT));
- elfregs->exccause = regs->exccause;
- elfregs->excvaddr = regs->excvaddr;
- elfregs->windowbase = regs->windowbase;
- elfregs->windowstart = regs->windowstart;
elfregs->lbeg = regs->lbeg;
elfregs->lend = regs->lend;
elfregs->lcount = regs->lcount;
elfregs->sar = regs->sar;
- elfregs->syscall = regs->syscall;
+ elfregs->windowstart = ws;
- /* Copy register file.
- * The layout looks like this:
- *
- * | a0 ... a15 | Z ... Z | arX ... arY |
- * current window unused saved frames
- */
-
- memset (elfregs->ar, 0, sizeof(elfregs->ar));
-
- wb_offset = regs->windowbase * 4;
- n = (regs->wmask&1)? 4 : (regs->wmask&2)? 8 : (regs->wmask&4)? 12 : 16;
-
- for (i = 0; i < n; i++)
- elfregs->ar[(wb_offset + i) % XCHAL_NUM_AREGS] = regs->areg[i];
-
- n = (regs->wmask >> 4) * 4;
-
- for (i = XCHAL_NUM_AREGS - n; n > 0; i++, n--)
- elfregs->ar[(wb_offset + i) % XCHAL_NUM_AREGS] = regs->areg[i];
+ live = (wm & 2) ? 4 : (wm & 4) ? 8 : (wm & 8) ? 12 : 16;
+ last = XCHAL_NUM_AREGS - (wm >> 4) * 4;
+ memcpy(elfregs->a, regs->areg, live * 4);
+ memcpy(elfregs->a + last, regs->areg + last, (wm >> 4) * 16);
}
-void xtensa_elf_core_copy_regs (xtensa_gregset_t *elfregs, struct pt_regs *regs)
+int dump_fpu(void)
{
- do_copy_regs ((xtensa_gregset_t *)elfregs, regs, current);
-}
-
-
-/* The inverse of do_copy_regs(). No error or sanity checking. */
-
-void do_restore_regs (xtensa_gregset_t *elfregs, struct pt_regs *regs,
- struct task_struct *tsk)
-{
- int i, n, wb_offset;
-
- /* Note: PS.EXCM is not set while user task is running; it
- * needs to be set in regs->ps is for exception handling convenience.
- */
-
- regs->pc = elfregs->pc;
- regs->ps = (elfregs->ps | (1 << PS_EXCM_BIT));
- regs->exccause = elfregs->exccause;
- regs->excvaddr = elfregs->excvaddr;
- regs->windowbase = elfregs->windowbase;
- regs->windowstart = elfregs->windowstart;
- regs->lbeg = elfregs->lbeg;
- regs->lend = elfregs->lend;
- regs->lcount = elfregs->lcount;
- regs->sar = elfregs->sar;
- regs->syscall = elfregs->syscall;
-
- /* Clear everything. */
-
- memset (regs->areg, 0, sizeof(regs->areg));
-
- /* Copy regs from live window frame. */
-
- wb_offset = regs->windowbase * 4;
- n = (regs->wmask&1)? 4 : (regs->wmask&2)? 8 : (regs->wmask&4)? 12 : 16;
-
- for (i = 0; i < n; i++)
- regs->areg[(wb_offset+i) % XCHAL_NUM_AREGS] = elfregs->ar[i];
-
- n = (regs->wmask >> 4) * 4;
-
- for (i = XCHAL_NUM_AREGS - n; n > 0; i++, n--)
- regs->areg[(wb_offset+i) % XCHAL_NUM_AREGS] = elfregs->ar[i];
-}
-
-/*
- * do_save_fpregs() gathers information from 'struct pt_regs' and
- * 'current->thread' to fill in the elf_fpregset_t structure.
- *
- * Core files and ptrace use elf_fpregset_t.
- */
-
-void do_save_fpregs (elf_fpregset_t *fpregs, struct pt_regs *regs,
- struct task_struct *tsk)
-{
-#if XCHAL_HAVE_CP
-
- extern unsigned char _xtensa_reginfo_tables[];
- extern unsigned _xtensa_reginfo_table_size;
- int i;
- unsigned long flags;
-
- /* Before dumping coprocessor state from memory,
- * ensure any live coprocessor contents for this
- * task are first saved to memory:
- */
- local_irq_save(flags);
-
- for (i = 0; i < XCHAL_CP_MAX; i++) {
- if (tsk == coprocessor_info[i].owner) {
- enable_coprocessor(i);
- save_coprocessor_registers(
- tsk->thread.cp_save+coprocessor_info[i].offset,i);
- disable_coprocessor(i);
- }
- }
-
- local_irq_restore(flags);
-
- /* Now dump coprocessor & extra state: */
- memcpy((unsigned char*)fpregs,
- _xtensa_reginfo_tables, _xtensa_reginfo_table_size);
- memcpy((unsigned char*)fpregs + _xtensa_reginfo_table_size,
- tsk->thread.cp_save, XTENSA_CP_EXTRA_SIZE);
-#endif
-}
-
-/*
- * The inverse of do_save_fpregs().
- * Copies coprocessor and extra state from fpregs into regs and tsk->thread.
- * Returns 0 on success, non-zero if layout doesn't match.
- */
-
-int do_restore_fpregs (elf_fpregset_t *fpregs, struct pt_regs *regs,
- struct task_struct *tsk)
-{
-#if XCHAL_HAVE_CP
-
- extern unsigned char _xtensa_reginfo_tables[];
- extern unsigned _xtensa_reginfo_table_size;
- int i;
- unsigned long flags;
-
- /* Make sure save area layouts match.
- * FIXME: in the future we could allow restoring from
- * a different layout of the same registers, by comparing
- * fpregs' table with _xtensa_reginfo_tables and matching
- * entries and copying registers one at a time.
- * Not too sure yet whether that's very useful.
- */
-
- if( memcmp((unsigned char*)fpregs,
- _xtensa_reginfo_tables, _xtensa_reginfo_table_size) ) {
- return -1;
- }
-
- /* Before restoring coprocessor state from memory,
- * ensure any live coprocessor contents for this
- * task are first invalidated.
- */
-
- local_irq_save(flags);
-
- for (i = 0; i < XCHAL_CP_MAX; i++) {
- if (tsk == coprocessor_info[i].owner) {
- enable_coprocessor(i);
- save_coprocessor_registers(
- tsk->thread.cp_save+coprocessor_info[i].offset,i);
- coprocessor_info[i].owner = 0;
- disable_coprocessor(i);
- }
- }
-
- local_irq_restore(flags);
-
- /* Now restore coprocessor & extra state: */
-
- memcpy(tsk->thread.cp_save,
- (unsigned char*)fpregs + _xtensa_reginfo_table_size,
- XTENSA_CP_EXTRA_SIZE);
-#endif
return 0;
}
-/*
- * Fill in the CP structure for a core dump for a particular task.
- */
-
-int
-dump_task_fpu(struct pt_regs *regs, struct task_struct *task, elf_fpregset_t *r)
-{
- return 0; /* no coprocessors active on this processor */
-}
-
-/*
- * Fill in the CP structure for a core dump.
- * This includes any FPU coprocessor.
- * Here, we dump all coprocessors, and other ("extra") custom state.
- *
- * This function is called by elf_core_dump() in fs/binfmt_elf.c
- * (in which case 'regs' comes from calls to do_coredump, see signals.c).
- */
-int dump_fpu(struct pt_regs *regs, elf_fpregset_t *r)
-{
- return dump_task_fpu(regs, current, r);
-}
asmlinkage
long xtensa_clone(unsigned long clone_flags, unsigned long newsp,
@@ -421,8 +314,8 @@
}
/*
- * * xtensa_execve() executes a new program.
- * */
+ * xtensa_execve() executes a new program.
+ */
asmlinkage
long xtensa_execve(char __user *name, char __user * __user *argv,
@@ -437,7 +330,6 @@
error = PTR_ERR(filename);
if (IS_ERR(filename))
goto out;
- // FIXME: release coprocessor??
error = do_execve(filename, argv, envp, regs);
if (error == 0) {
task_lock(current);
diff --git a/arch/xtensa/kernel/ptrace.c b/arch/xtensa/kernel/ptrace.c
index 5533c78..9486882 100644
--- a/arch/xtensa/kernel/ptrace.c
+++ b/arch/xtensa/kernel/ptrace.c
@@ -4,7 +4,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (C) 2001 - 2005 Tensilica Inc.
+ * Copyright (C) 2001 - 2007 Tensilica Inc.
*
* Joe Taylor <joe@tensilica.com, joetylr@yahoo.com>
* Chris Zankel <chris@zankel.net>
@@ -28,14 +28,10 @@
#include <asm/uaccess.h>
#include <asm/ptrace.h>
#include <asm/elf.h>
-
-#define TEST_KERNEL // verify kernel operations FIXME: remove
-
+#include <asm/coprocessor.h>
/*
- * Called by kernel/ptrace.c when detaching..
- *
- * Make sure single step bits etc are not set.
+ * Called by kernel/ptrace.c when detaching to disable single stepping.
*/
void ptrace_disable(struct task_struct *child)
@@ -43,136 +39,237 @@
/* Nothing to do.. */
}
-long arch_ptrace(struct task_struct *child, long request, long addr, long data)
+int ptrace_getregs(struct task_struct *child, void __user *uregs)
{
- int ret = -EPERM;
+ struct pt_regs *regs = task_pt_regs(child);
+ xtensa_gregset_t __user *gregset = uregs;
+ unsigned long wm = regs->wmask;
+ unsigned long wb = regs->windowbase;
+ int live, i;
- switch (request) {
- case PTRACE_PEEKTEXT: /* read word at location addr. */
- case PTRACE_PEEKDATA:
- ret = generic_ptrace_peekdata(child, addr, data);
- goto out;
+ if (!access_ok(VERIFY_WRITE, uregs, sizeof(xtensa_gregset_t)))
+ return -EIO;
- /* Read the word at location addr in the USER area. */
+ __put_user(regs->pc, &gregset->pc);
+ __put_user(regs->ps & ~(1 << PS_EXCM_BIT), &gregset->ps);
+ __put_user(regs->lbeg, &gregset->lbeg);
+ __put_user(regs->lend, &gregset->lend);
+ __put_user(regs->lcount, &gregset->lcount);
+ __put_user(regs->windowstart, &gregset->windowstart);
+ __put_user(regs->windowbase, &gregset->windowbase);
- case PTRACE_PEEKUSR:
- {
- struct pt_regs *regs;
- unsigned long tmp;
+ live = (wm & 2) ? 4 : (wm & 4) ? 8 : (wm & 8) ? 12 : 16;
- regs = task_pt_regs(child);
- tmp = 0; /* Default return value. */
+ for (i = 0; i < live; i++)
+ __put_user(regs->areg[i],gregset->a+((wb*4+i)%XCHAL_NUM_AREGS));
+ for (i = XCHAL_NUM_AREGS - (wm >> 4) * 4; i < XCHAL_NUM_AREGS; i++)
+ __put_user(regs->areg[i],gregset->a+((wb*4+i)%XCHAL_NUM_AREGS));
- switch(addr) {
+ return 0;
+}
+
+int ptrace_setregs(struct task_struct *child, void __user *uregs)
+{
+ struct pt_regs *regs = task_pt_regs(child);
+ xtensa_gregset_t *gregset = uregs;
+ const unsigned long ps_mask = PS_CALLINC_MASK | PS_OWB_MASK;
+ unsigned long ps;
+ unsigned long wb;
+
+ if (!access_ok(VERIFY_WRITE, uregs, sizeof(xtensa_gregset_t)))
+ return -EIO;
+
+ __get_user(regs->pc, &gregset->pc);
+ __get_user(ps, &gregset->ps);
+ __get_user(regs->lbeg, &gregset->lbeg);
+ __get_user(regs->lend, &gregset->lend);
+ __get_user(regs->lcount, &gregset->lcount);
+ __get_user(regs->windowstart, &gregset->windowstart);
+ __get_user(wb, &gregset->windowbase);
+
+ regs->ps = (regs->ps & ~ps_mask) | (ps & ps_mask) | (1 << PS_EXCM_BIT);
+
+ if (wb >= XCHAL_NUM_AREGS / 4)
+ return -EFAULT;
+
+ regs->windowbase = wb;
+
+ if (wb != 0 && __copy_from_user(regs->areg + XCHAL_NUM_AREGS - wb * 4,
+ gregset->a, wb * 16))
+ return -EFAULT;
+
+ if (__copy_from_user(regs->areg, gregset->a + wb*4, (WSBITS-wb) * 16))
+ return -EFAULT;
+
+ return 0;
+}
+
+
+int ptrace_getxregs(struct task_struct *child, void __user *uregs)
+{
+ struct pt_regs *regs = task_pt_regs(child);
+ struct thread_info *ti = task_thread_info(child);
+ elf_xtregs_t __user *xtregs = uregs;
+ int ret = 0;
+
+ if (!access_ok(VERIFY_WRITE, uregs, sizeof(elf_xtregs_t)))
+ return -EIO;
+
+#if XTENSA_HAVE_COPROCESSORS
+ /* Flush all coprocessor registers to memory. */
+ coprocessor_flush_all(ti);
+ ret |= __copy_to_user(&xtregs->cp0, &ti->xtregs_cp,
+ sizeof(xtregs_coprocessor_t));
+#endif
+ ret |= __copy_to_user(&xtregs->opt, ®s->xtregs_opt,
+ sizeof(xtregs->opt));
+ ret |= __copy_to_user(&xtregs->user,&ti->xtregs_user,
+ sizeof(xtregs->user));
+
+ return ret ? -EFAULT : 0;
+}
+
+int ptrace_setxregs(struct task_struct *child, void __user *uregs)
+{
+ struct thread_info *ti = task_thread_info(child);
+ struct pt_regs *regs = task_pt_regs(child);
+ elf_xtregs_t *xtregs = uregs;
+ int ret = 0;
+
+#if XTENSA_HAVE_COPROCESSORS
+ /* Flush all coprocessors before we overwrite them. */
+ coprocessor_flush_all(ti);
+ coprocessor_release_all(ti);
+
+ ret |= __copy_from_user(&ti->xtregs_cp, &xtregs->cp0,
+ sizeof(xtregs_coprocessor_t));
+#endif
+ ret |= __copy_from_user(®s->xtregs_opt, &xtregs->opt,
+ sizeof(xtregs->opt));
+ ret |= __copy_from_user(&ti->xtregs_user, &xtregs->user,
+ sizeof(xtregs->user));
+
+ return ret ? -EFAULT : 0;
+}
+
+int ptrace_peekusr(struct task_struct *child, long regno, long __user *ret)
+{
+ struct pt_regs *regs;
+ unsigned long tmp;
+
+ regs = task_pt_regs(child);
+ tmp = 0; /* Default return value. */
+
+ switch(regno) {
case REG_AR_BASE ... REG_AR_BASE + XCHAL_NUM_AREGS - 1:
- {
- int ar = addr - REG_AR_BASE - regs->windowbase * 4;
- ar &= (XCHAL_NUM_AREGS - 1);
- if (ar < 16 && ar + (regs->wmask >> 4) * 4 >= 0)
- tmp = regs->areg[ar];
- else
- ret = -EIO;
+ tmp = regs->areg[regno - REG_AR_BASE];
break;
- }
+
case REG_A_BASE ... REG_A_BASE + 15:
- tmp = regs->areg[addr - REG_A_BASE];
+ tmp = regs->areg[regno - REG_A_BASE];
break;
+
case REG_PC:
tmp = regs->pc;
break;
+
case REG_PS:
/* Note: PS.EXCM is not set while user task is running;
* its being set in regs is for exception handling
* convenience. */
tmp = (regs->ps & ~(1 << PS_EXCM_BIT));
break;
+
case REG_WB:
- tmp = regs->windowbase;
- break;
+ break; /* tmp = 0 */
+
case REG_WS:
- tmp = regs->windowstart;
+ {
+ unsigned long wb = regs->windowbase;
+ unsigned long ws = regs->windowstart;
+ tmp = ((ws>>wb) | (ws<<(WSBITS-wb))) & ((1<<WSBITS)-1);
break;
+ }
case REG_LBEG:
tmp = regs->lbeg;
break;
+
case REG_LEND:
tmp = regs->lend;
break;
+
case REG_LCOUNT:
tmp = regs->lcount;
break;
+
case REG_SAR:
tmp = regs->sar;
break;
- case REG_DEPC:
- tmp = regs->depc;
- break;
- case REG_EXCCAUSE:
- tmp = regs->exccause;
- break;
- case REG_EXCVADDR:
- tmp = regs->excvaddr;
- break;
+
case SYSCALL_NR:
tmp = regs->syscall;
break;
- default:
- tmp = 0;
- ret = -EIO;
- goto out;
- }
- ret = put_user(tmp, (unsigned long *) data);
- goto out;
- }
- case PTRACE_POKETEXT: /* write the word at location addr. */
+ default:
+ return -EIO;
+ }
+ return put_user(tmp, ret);
+}
+
+int ptrace_pokeusr(struct task_struct *child, long regno, long val)
+{
+ struct pt_regs *regs;
+ regs = task_pt_regs(child);
+
+ switch (regno) {
+ case REG_AR_BASE ... REG_AR_BASE + XCHAL_NUM_AREGS - 1:
+ regs->areg[regno - REG_AR_BASE] = val;
+ break;
+
+ case REG_A_BASE ... REG_A_BASE + 15:
+ regs->areg[regno - REG_A_BASE] = val;
+ break;
+
+ case REG_PC:
+ regs->pc = val;
+ break;
+
+ case SYSCALL_NR:
+ regs->syscall = val;
+ break;
+
+ default:
+ return -EIO;
+ }
+ return 0;
+}
+
+long arch_ptrace(struct task_struct *child, long request, long addr, long data)
+{
+ int ret = -EPERM;
+
+ switch (request) {
+ case PTRACE_PEEKTEXT: /* read word at location addr. */
+ case PTRACE_PEEKDATA:
+ ret = generic_ptrace_peekdata(child, addr, data);
+ break;
+
+ case PTRACE_PEEKUSR: /* read register specified by addr. */
+ ret = ptrace_peekusr(child, addr, (void __user *) data);
+ break;
+
+ case PTRACE_POKETEXT: /* write the word at location addr. */
case PTRACE_POKEDATA:
ret = generic_ptrace_pokedata(child, addr, data);
- goto out;
-
- case PTRACE_POKEUSR:
- {
- struct pt_regs *regs;
- regs = task_pt_regs(child);
-
- switch (addr) {
- case REG_AR_BASE ... REG_AR_BASE + XCHAL_NUM_AREGS - 1:
- {
- int ar = addr - REG_AR_BASE - regs->windowbase * 4;
- if (ar < 16 && ar + (regs->wmask >> 4) * 4 >= 0)
- regs->areg[ar & (XCHAL_NUM_AREGS - 1)] = data;
- else
- ret = -EIO;
- break;
- }
- case REG_A_BASE ... REG_A_BASE + 15:
- regs->areg[addr - REG_A_BASE] = data;
- break;
- case REG_PC:
- regs->pc = data;
- break;
- case SYSCALL_NR:
- regs->syscall = data;
- break;
-#ifdef TEST_KERNEL
- case REG_WB:
- regs->windowbase = data;
- break;
- case REG_WS:
- regs->windowstart = data;
- break;
-#endif
-
- default:
- /* The rest are not allowed. */
- ret = -EIO;
- break;
- }
break;
- }
+
+ case PTRACE_POKEUSR: /* write register specified by addr. */
+ ret = ptrace_pokeusr(child, addr, data);
+ break;
/* continue and stop at next (return from) syscall */
+
case PTRACE_SYSCALL:
case PTRACE_CONT: /* restart after signal. */
{
@@ -217,98 +314,26 @@
break;
case PTRACE_GETREGS:
- {
- /* 'data' points to user memory in which to write.
- * Mainly due to the non-live register values, we
- * reformat the register values into something more
- * standard. For convenience, we use the handy
- * elf_gregset_t format. */
-
- xtensa_gregset_t format;
- struct pt_regs *regs = task_pt_regs(child);
-
- do_copy_regs (&format, regs, child);
-
- /* Now, copy to user space nice and easy... */
- ret = 0;
- if (copy_to_user((void *)data, &format, sizeof(elf_gregset_t)))
- ret = -EFAULT;
+ ret = ptrace_getregs(child, (void __user *) data);
break;
- }
case PTRACE_SETREGS:
- {
- /* 'data' points to user memory that contains the new
- * values in the elf_gregset_t format. */
-
- xtensa_gregset_t format;
- struct pt_regs *regs = task_pt_regs(child);
-
- if (copy_from_user(&format,(void *)data,sizeof(elf_gregset_t))){
- ret = -EFAULT;
- break;
- }
-
- /* FIXME: Perhaps we want some sanity checks on
- * these user-space values? See ARM version. Are
- * debuggers a security concern? */
-
- do_restore_regs (&format, regs, child);
-
- ret = 0;
+ ret = ptrace_setregs(child, (void __user *) data);
break;
- }
- case PTRACE_GETFPREGS:
- {
- /* 'data' points to user memory in which to write.
- * For convenience, we use the handy
- * elf_fpregset_t format. */
-
- elf_fpregset_t fpregs;
- struct pt_regs *regs = task_pt_regs(child);
-
- do_save_fpregs (&fpregs, regs, child);
-
- /* Now, copy to user space nice and easy... */
- ret = 0;
- if (copy_to_user((void *)data, &fpregs, sizeof(elf_fpregset_t)))
- ret = -EFAULT;
-
+ case PTRACE_GETXTREGS:
+ ret = ptrace_getxregs(child, (void __user *) data);
break;
- }
- case PTRACE_SETFPREGS:
- {
- /* 'data' points to user memory that contains the new
- * values in the elf_fpregset_t format.
- */
- elf_fpregset_t fpregs;
- struct pt_regs *regs = task_pt_regs(child);
-
- ret = 0;
- if (copy_from_user(&fpregs, (void *)data, sizeof(elf_fpregset_t))) {
- ret = -EFAULT;
- break;
- }
-
- if (do_restore_fpregs (&fpregs, regs, child))
- ret = -EIO;
- break;
- }
-
- case PTRACE_GETFPREGSIZE:
- /* 'data' points to 'unsigned long' set to the size
- * of elf_fpregset_t
- */
- ret = put_user(sizeof(elf_fpregset_t), (unsigned long *) data);
+ case PTRACE_SETXTREGS:
+ ret = ptrace_setxregs(child, (void __user *) data);
break;
default:
ret = ptrace_request(child, request, addr, data);
- goto out;
+ break;
}
- out:
+
return ret;
}
diff --git a/arch/xtensa/kernel/setup.c b/arch/xtensa/kernel/setup.c
index b80f2cb..5e6d75c 100644
--- a/arch/xtensa/kernel/setup.c
+++ b/arch/xtensa/kernel/setup.c
@@ -60,11 +60,6 @@
extern struct rtc_ops no_rtc_ops;
struct rtc_ops *rtc_ops;
-#ifdef CONFIG_PC_KEYB
-extern struct kbd_ops no_kbd_ops;
-struct kbd_ops *kbd_ops;
-#endif
-
#ifdef CONFIG_BLK_DEV_INITRD
extern void *initrd_start;
extern void *initrd_end;
diff --git a/arch/xtensa/kernel/signal.c b/arch/xtensa/kernel/signal.c
index 033aae0..f2220b5 100644
--- a/arch/xtensa/kernel/signal.c
+++ b/arch/xtensa/kernel/signal.c
@@ -35,13 +35,17 @@
extern struct task_struct *coproc_owners[];
-extern void release_all_cp (struct task_struct *);
-
struct rt_sigframe
{
struct siginfo info;
struct ucontext uc;
- cp_state_t cpstate;
+ struct {
+ xtregs_opt_t opt;
+ xtregs_user_t user;
+#if XTENSA_HAVE_COPROCESSORS
+ xtregs_coprocessor_t cp;
+#endif
+ } xtregs;
unsigned char retcode[6];
unsigned int window[4];
};
@@ -49,8 +53,6 @@
/*
* Flush register windows stored in pt_regs to stack.
* Returns 1 for errors.
- *
- * Note that windowbase, windowstart, and wmask are not updated!
*/
int
@@ -116,6 +118,9 @@
base += inc;
}
+ regs->wmask = 1;
+ regs->windowstart = 1 << wb;
+
return 0;
errout:
@@ -131,9 +136,10 @@
*/
static int
-setup_sigcontext(struct sigcontext __user *sc, cp_state_t *cpstate,
- struct pt_regs *regs, unsigned long mask)
+setup_sigcontext(struct rt_sigframe __user *frame, struct pt_regs *regs)
{
+ struct sigcontext __user *sc = &frame->uc.uc_mcontext;
+ struct thread_info *ti = current_thread_info();
int err = 0;
#define COPY(x) err |= __put_user(regs->x, &sc->sc_##x)
@@ -147,23 +153,32 @@
err |= flush_window_regs_user(regs);
err |= __copy_to_user (sc->sc_a, regs->areg, 16 * 4);
+ err |= __put_user(0, &sc->sc_xtregs);
- // err |= __copy_to_user (sc->sc_a, regs->areg, XCHAL_NUM_AREGS * 4)
+ if (err)
+ return err;
-#if XCHAL_HAVE_CP
-# error Coprocessors unsupported
- err |= save_cpextra(cpstate);
- err |= __put_user(err ? NULL : cpstate, &sc->sc_cpstate);
+#if XTENSA_HAVE_COPROCESSORS
+ coprocessor_flush_all(ti);
+ coprocessor_release_all(ti);
+ err |= __copy_to_user(&frame->xtregs.cp, &ti->xtregs_cp,
+ sizeof (frame->xtregs.cp));
#endif
- /* non-iBCS2 extensions.. */
- err |= __put_user(mask, &sc->oldmask);
+ err |= __copy_to_user(&frame->xtregs.opt, ®s->xtregs_opt,
+ sizeof (xtregs_opt_t));
+ err |= __copy_to_user(&frame->xtregs.user, &ti->xtregs_user,
+ sizeof (xtregs_user_t));
+
+ err |= __put_user(err ? NULL : &frame->xtregs, &sc->sc_xtregs);
return err;
}
static int
-restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
+restore_sigcontext(struct pt_regs *regs, struct rt_sigframe __user *frame)
{
+ struct sigcontext __user *sc = &frame->uc.uc_mcontext;
+ struct thread_info *ti = current_thread_info();
unsigned int err = 0;
unsigned long ps;
@@ -181,6 +196,8 @@
regs->windowbase = 0;
regs->windowstart = 1;
+ regs->syscall = -1; /* disable syscall checks */
+
/* For PS, restore only PS.CALLINC.
* Assume that all other bits are either the same as for the signal
* handler, or the user mode value doesn't matter (e.g. PS.OWB).
@@ -196,8 +213,9 @@
err |= __copy_from_user(regs->areg, sc->sc_a, 16 * 4);
-#if XCHAL_HAVE_CP
-# error Coprocessors unsupported
+ if (err)
+ return err;
+
/* The signal handler may have used coprocessors in which
* case they are still enabled. We disable them to force a
* reloading of the original task's CP state by the lazy
@@ -205,20 +223,20 @@
* Also, we essentially discard any coprocessor state that the
* signal handler created. */
- if (!err) {
- struct task_struct *tsk = current;
- release_all_cp(tsk);
- err |= __copy_from_user(tsk->thread.cpextra, sc->sc_cpstate,
- XTENSA_CP_EXTRA_SIZE);
- }
+#if XTENSA_HAVE_COPROCESSORS
+ coprocessor_release_all(ti);
+ err |= __copy_from_user(&ti->xtregs_cp, &frame->xtregs.cp,
+ sizeof (frame->xtregs.cp));
#endif
+ err |= __copy_from_user(&ti->xtregs_user, &frame->xtregs.user,
+ sizeof (xtregs_user_t));
+ err |= __copy_from_user(®s->xtregs_opt, &frame->xtregs.opt,
+ sizeof (xtregs_opt_t));
- regs->syscall = -1; /* disable syscall checks */
return err;
}
-
/*
* Do a signal return; undo the signal stack.
*/
@@ -247,7 +265,7 @@
recalc_sigpending();
spin_unlock_irq(¤t->sighand->siglock);
- if (restore_sigcontext(regs, &frame->uc.uc_mcontext))
+ if (restore_sigcontext(regs, frame))
goto badframe;
ret = regs->areg[2];
@@ -360,18 +378,22 @@
err |= __put_user(sas_ss_flags(regs->areg[1]),
&frame->uc.uc_stack.ss_flags);
err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
- err |= setup_sigcontext(&frame->uc.uc_mcontext, &frame->cpstate,
- regs, set->sig[0]);
+ err |= setup_sigcontext(frame, regs);
err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
- /* Create sys_rt_sigreturn syscall in stack frame */
+ if (ka->sa.sa_flags & SA_RESTORER) {
+ ra = (unsigned long)ka->sa.sa_restorer;
+ } else {
- err |= gen_return_code(frame->retcode);
+ /* Create sys_rt_sigreturn syscall in stack frame */
- if (err) {
- goto give_sigsegv;
+ err |= gen_return_code(frame->retcode);
+
+ if (err) {
+ goto give_sigsegv;
+ }
+ ra = (unsigned long) frame->retcode;
}
-
/*
* Create signal handler execution context.
@@ -385,7 +407,6 @@
/* Set up a stack frame for a call4
* Note: PS.CALLINC is set to one by start_thread
*/
- ra = (unsigned long) frame->retcode;
regs->areg[4] = (((unsigned long) ra) & 0x3fffffff) | 0x40000000;
regs->areg[6] = (unsigned long) signal;
regs->areg[7] = (unsigned long) &frame->info;
diff --git a/arch/xtensa/kernel/traps.c b/arch/xtensa/kernel/traps.c
index 397bcd6..c7a021d 100644
--- a/arch/xtensa/kernel/traps.c
+++ b/arch/xtensa/kernel/traps.c
@@ -118,28 +118,28 @@
{ EXCCAUSE_STORE_CACHE_ATTRIBUTE, 0, do_page_fault },
{ EXCCAUSE_LOAD_CACHE_ATTRIBUTE, 0, do_page_fault },
/* XCCHAL_EXCCAUSE_FLOATING_POINT unhandled */
-#if (XCHAL_CP_MASK & 1)
+#if XTENSA_HAVE_COPROCESSOR(0)
COPROCESSOR(0),
#endif
-#if (XCHAL_CP_MASK & 2)
+#if XTENSA_HAVE_COPROCESSOR(1)
COPROCESSOR(1),
#endif
-#if (XCHAL_CP_MASK & 4)
+#if XTENSA_HAVE_COPROCESSOR(2)
COPROCESSOR(2),
#endif
-#if (XCHAL_CP_MASK & 8)
+#if XTENSA_HAVE_COPROCESSOR(3)
COPROCESSOR(3),
#endif
-#if (XCHAL_CP_MASK & 16)
+#if XTENSA_HAVE_COPROCESSOR(4)
COPROCESSOR(4),
#endif
-#if (XCHAL_CP_MASK & 32)
+#if XTENSA_HAVE_COPROCESSOR(5)
COPROCESSOR(5),
#endif
-#if (XCHAL_CP_MASK & 64)
+#if XTENSA_HAVE_COPROCESSOR(6)
COPROCESSOR(6),
#endif
-#if (XCHAL_CP_MASK & 128)
+#if XTENSA_HAVE_COPROCESSOR(7)
COPROCESSOR(7),
#endif
{ EXCCAUSE_MAPPED_DEBUG, 0, do_debug },
@@ -349,9 +349,7 @@
wmask = regs->wmask & ~1;
- for (i = 0; i < 32; i++) {
- if (wmask & (1 << (i / 4)))
- break;
+ for (i = 0; i < 16; i++) {
if ((i % 8) == 0)
printk ("\n" KERN_INFO "a%02d: ", i);
printk("%08lx ", regs->areg[i]);
diff --git a/arch/xtensa/kernel/vmlinux.lds.S b/arch/xtensa/kernel/vmlinux.lds.S
index 7d0f55a..51f4fb6 100644
--- a/arch/xtensa/kernel/vmlinux.lds.S
+++ b/arch/xtensa/kernel/vmlinux.lds.S
@@ -136,7 +136,9 @@
__init_begin = .;
.init.text : {
_sinittext = .;
- *(.init.literal) INIT_TEXT
+ *(.init.literal) *(.cpuinit.literal)
+ *(.devinit.literal) *(.meminit.literal)
+ INIT_TEXT
_einittext = .;
}
@@ -161,6 +163,8 @@
.DoubleExceptionVector.literal);
RELOCATE_ENTRY(_DoubleExceptionVector_text,
.DoubleExceptionVector.text);
+ RELOCATE_ENTRY(_DebugInterruptVector_text,
+ .DebugInterruptVector.text);
__boot_reloc_table_end = ABSOLUTE(.) ;
}
diff --git a/arch/xtensa/mm/cache.c b/arch/xtensa/mm/cache.c
index 9a1fa94..3ba990c 100644
--- a/arch/xtensa/mm/cache.c
+++ b/arch/xtensa/mm/cache.c
@@ -25,7 +25,6 @@
#include <linux/swap.h>
#include <linux/pagemap.h>
-#include <asm/pgtable.h>
#include <asm/bootparam.h>
#include <asm/mmu_context.h>
#include <asm/tlb.h>
@@ -181,9 +180,9 @@
#else
if (!PageReserved(page) && !test_bit(PG_arch_1, &page->flags)
&& (vma->vm_flags & VM_EXEC) != 0) {
- unsigned long vaddr = addr & PAGE_MASK;
- __flush_dcache_page(vaddr);
- __invalidate_icache_page(vaddr);
+ unsigned long paddr = (unsigned long) page_address(page);
+ __flush_dcache_page(paddr);
+ __invalidate_icache_page(paddr);
set_bit(PG_arch_1, &page->flags);
}
#endif
diff --git a/arch/xtensa/mm/init.c b/arch/xtensa/mm/init.c
index b3086f3..81d0560 100644
--- a/arch/xtensa/mm/init.c
+++ b/arch/xtensa/mm/init.c
@@ -309,7 +309,7 @@
struct kmem_cache *pgtable_cache __read_mostly;
-static void pgd_ctor(void *addr, struct kmem_cache *cache, unsigned long flags)
+static void pgd_ctor(struct kmem_cache *cache, void* addr)
{
pte_t* ptep = (pte_t*)addr;
int i;
diff --git a/arch/xtensa/mm/misc.S b/arch/xtensa/mm/misc.S
index e1f8803..c885664 100644
--- a/arch/xtensa/mm/misc.S
+++ b/arch/xtensa/mm/misc.S
@@ -295,7 +295,7 @@
ENTRY(__invalidate_icache_page_alias)
entry sp, 16
- addi a6, a3, (PAGE_KERNEL | _PAGE_HW_WRITE)
+ addi a6, a3, (PAGE_KERNEL_EXEC | _PAGE_HW_WRITE)
mov a4, a2
witlb a6, a2
isync
diff --git a/arch/xtensa/platform-iss/Makefile b/arch/xtensa/platforms/iss/Makefile
similarity index 100%
rename from arch/xtensa/platform-iss/Makefile
rename to arch/xtensa/platforms/iss/Makefile
diff --git a/arch/xtensa/platform-iss/console.c b/arch/xtensa/platforms/iss/console.c
similarity index 98%
rename from arch/xtensa/platform-iss/console.c
rename to arch/xtensa/platforms/iss/console.c
index 854677d..9141e36 100644
--- a/arch/xtensa/platform-iss/console.c
+++ b/arch/xtensa/platforms/iss/console.c
@@ -43,6 +43,7 @@
int errno;
+static int __simc (int a, int b, int c, int d, int e, int f) __attribute__((__noinline__));
static int __simc (int a, int b, int c, int d, int e, int f)
{
int ret;
diff --git a/arch/xtensa/platform-iss/io.c b/arch/xtensa/platforms/iss/io.c
similarity index 100%
rename from arch/xtensa/platform-iss/io.c
rename to arch/xtensa/platforms/iss/io.c
diff --git a/arch/xtensa/platform-iss/network.c b/arch/xtensa/platforms/iss/network.c
similarity index 99%
rename from arch/xtensa/platform-iss/network.c
rename to arch/xtensa/platforms/iss/network.c
index f21b9b0..a2e2522 100644
--- a/arch/xtensa/platform-iss/network.c
+++ b/arch/xtensa/platforms/iss/network.c
@@ -31,7 +31,6 @@
#include <linux/bootmem.h>
#include <linux/ethtool.h>
#include <linux/rtnetlink.h>
-#include <linux/timer.h>
#include <linux/platform_device.h>
#include <asm/platform/simcall.h>
@@ -108,6 +107,7 @@
static int errno;
+static int __simc (int a, int b, int c, int d, int e, int f) __attribute__((__noinline__));
static int __simc (int a, int b, int c, int d, int e, int f)
{
int ret;
diff --git a/arch/xtensa/platform-iss/setup.c b/arch/xtensa/platforms/iss/setup.c
similarity index 100%
rename from arch/xtensa/platform-iss/setup.c
rename to arch/xtensa/platforms/iss/setup.c
diff --git a/block/blk-core.c b/block/blk-core.c
index e9754dc..775c851 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -38,7 +38,7 @@
/*
* For the allocated request tables
*/
-struct kmem_cache *request_cachep;
+static struct kmem_cache *request_cachep;
/*
* For queue allocation
@@ -127,6 +127,7 @@
rq->nr_hw_segments = 0;
rq->ioprio = 0;
rq->special = NULL;
+ rq->raw_data_len = 0;
rq->buffer = NULL;
rq->tag = -1;
rq->errors = 0;
@@ -2015,6 +2016,7 @@
rq->hard_cur_sectors = rq->current_nr_sectors;
rq->hard_nr_sectors = rq->nr_sectors = bio_sectors(bio);
rq->buffer = bio_data(bio);
+ rq->raw_data_len = bio->bi_size;
rq->data_len = bio->bi_size;
rq->bio = rq->biotail = bio;
diff --git a/block/blk-ioc.c b/block/blk-ioc.c
index 80245dc..e34df7c 100644
--- a/block/blk-ioc.c
+++ b/block/blk-ioc.c
@@ -17,17 +17,13 @@
static void cfq_dtor(struct io_context *ioc)
{
- struct cfq_io_context *cic[1];
- int r;
+ if (!hlist_empty(&ioc->cic_list)) {
+ struct cfq_io_context *cic;
- /*
- * We don't have a specific key to lookup with, so use the gang
- * lookup to just retrieve the first item stored. The cfq exit
- * function will iterate the full tree, so any member will do.
- */
- r = radix_tree_gang_lookup(&ioc->radix_root, (void **) cic, 0, 1);
- if (r > 0)
- cic[0]->dtor(ioc);
+ cic = list_entry(ioc->cic_list.first, struct cfq_io_context,
+ cic_list);
+ cic->dtor(ioc);
+ }
}
/*
@@ -57,18 +53,16 @@
static void cfq_exit(struct io_context *ioc)
{
- struct cfq_io_context *cic[1];
- int r;
-
rcu_read_lock();
- /*
- * See comment for cfq_dtor()
- */
- r = radix_tree_gang_lookup(&ioc->radix_root, (void **) cic, 0, 1);
- rcu_read_unlock();
- if (r > 0)
- cic[0]->exit(ioc);
+ if (!hlist_empty(&ioc->cic_list)) {
+ struct cfq_io_context *cic;
+
+ cic = list_entry(ioc->cic_list.first, struct cfq_io_context,
+ cic_list);
+ cic->exit(ioc);
+ }
+ rcu_read_unlock();
}
/* Called by the exitting task */
@@ -105,6 +99,7 @@
ret->nr_batch_requests = 0; /* because this is 0 */
ret->aic = NULL;
INIT_RADIX_TREE(&ret->radix_root, GFP_ATOMIC | __GFP_HIGH);
+ INIT_HLIST_HEAD(&ret->cic_list);
ret->ioc_data = NULL;
}
@@ -176,7 +171,7 @@
}
EXPORT_SYMBOL(copy_io_context);
-int __init blk_ioc_init(void)
+static int __init blk_ioc_init(void)
{
iocontext_cachep = kmem_cache_create("blkdev_ioc",
sizeof(struct io_context), 0, SLAB_PANIC, NULL);
diff --git a/block/blk-map.c b/block/blk-map.c
index 955d75c..09f7fd0 100644
--- a/block/blk-map.c
+++ b/block/blk-map.c
@@ -19,6 +19,7 @@
rq->biotail->bi_next = bio;
rq->biotail = bio;
+ rq->raw_data_len += bio->bi_size;
rq->data_len += bio->bi_size;
}
return 0;
@@ -139,10 +140,29 @@
ubuf += ret;
}
+ /*
+ * __blk_rq_map_user() copies the buffers if starting address
+ * or length isn't aligned. As the copied buffer is always
+ * page aligned, we know that there's enough room for padding.
+ * Extend the last bio and update rq->data_len accordingly.
+ *
+ * On unmap, bio_uncopy_user() will use unmodified
+ * bio_map_data pointed to by bio->bi_private.
+ */
+ if (len & queue_dma_alignment(q)) {
+ unsigned int pad_len = (queue_dma_alignment(q) & ~len) + 1;
+ struct bio *bio = rq->biotail;
+
+ bio->bi_io_vec[bio->bi_vcnt - 1].bv_len += pad_len;
+ bio->bi_size += pad_len;
+ rq->data_len += pad_len;
+ }
+
rq->buffer = rq->data = NULL;
return 0;
unmap_rq:
blk_rq_unmap_user(bio);
+ rq->bio = NULL;
return ret;
}
EXPORT_SYMBOL(blk_rq_map_user);
diff --git a/block/blk-merge.c b/block/blk-merge.c
index d3b84bb..7506c4f 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -220,7 +220,10 @@
bvprv = bvec;
} /* segments in rq */
- if (q->dma_drain_size) {
+ if (q->dma_drain_size && q->dma_drain_needed(rq)) {
+ if (rq->cmd_flags & REQ_RW)
+ memset(q->dma_drain_buffer, 0, q->dma_drain_size);
+
sg->page_link &= ~0x02;
sg = sg_next(sg);
sg_set_page(sg, virt_to_page(q->dma_drain_buffer),
@@ -228,6 +231,7 @@
((unsigned long)q->dma_drain_buffer) &
(PAGE_SIZE - 1));
nsegs++;
+ rq->data_len += q->dma_drain_size;
}
if (sg)
diff --git a/block/blk-settings.c b/block/blk-settings.c
index c8d0c57..9a8ffdd 100644
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -296,6 +296,7 @@
* blk_queue_dma_drain - Set up a drain buffer for excess dma.
*
* @q: the request queue for the device
+ * @dma_drain_needed: fn which returns non-zero if drain is necessary
* @buf: physically contiguous buffer
* @size: size of the buffer in bytes
*
@@ -315,14 +316,16 @@
* device can support otherwise there won't be room for the drain
* buffer.
*/
-int blk_queue_dma_drain(struct request_queue *q, void *buf,
- unsigned int size)
+extern int blk_queue_dma_drain(struct request_queue *q,
+ dma_drain_needed_fn *dma_drain_needed,
+ void *buf, unsigned int size)
{
if (q->max_hw_segments < 2 || q->max_phys_segments < 2)
return -EINVAL;
/* make room for appending the drain */
--q->max_hw_segments;
--q->max_phys_segments;
+ q->dma_drain_needed = dma_drain_needed;
q->dma_drain_buffer = buf;
q->dma_drain_size = size;
@@ -386,7 +389,7 @@
}
EXPORT_SYMBOL(blk_queue_update_dma_alignment);
-int __init blk_settings_init(void)
+static int __init blk_settings_init(void)
{
blk_max_low_pfn = max_low_pfn - 1;
blk_max_pfn = max_pfn - 1;
diff --git a/block/bsg.c b/block/bsg.c
index 8917c51..7f3c095 100644
--- a/block/bsg.c
+++ b/block/bsg.c
@@ -437,14 +437,14 @@
}
if (rq->next_rq) {
- hdr->dout_resid = rq->data_len;
- hdr->din_resid = rq->next_rq->data_len;
+ hdr->dout_resid = rq->raw_data_len;
+ hdr->din_resid = rq->next_rq->raw_data_len;
blk_rq_unmap_user(bidi_bio);
blk_put_request(rq->next_rq);
} else if (rq_data_dir(rq) == READ)
- hdr->din_resid = rq->data_len;
+ hdr->din_resid = rq->raw_data_len;
else
- hdr->dout_resid = rq->data_len;
+ hdr->dout_resid = rq->raw_data_len;
/*
* If the request generated a negative error number, return it
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index ca198e6..0f962ec 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -1145,38 +1145,19 @@
/*
* Call func for each cic attached to this ioc. Returns number of cic's seen.
*/
-#define CIC_GANG_NR 16
static unsigned int
call_for_each_cic(struct io_context *ioc,
void (*func)(struct io_context *, struct cfq_io_context *))
{
- struct cfq_io_context *cics[CIC_GANG_NR];
- unsigned long index = 0;
- unsigned int called = 0;
- int nr;
+ struct cfq_io_context *cic;
+ struct hlist_node *n;
+ int called = 0;
rcu_read_lock();
-
- do {
- int i;
-
- /*
- * Perhaps there's a better way - this just gang lookups from
- * 0 to the end, restarting after each CIC_GANG_NR from the
- * last key + 1.
- */
- nr = radix_tree_gang_lookup(&ioc->radix_root, (void **) cics,
- index, CIC_GANG_NR);
- if (!nr)
- break;
-
- called += nr;
- index = 1 + (unsigned long) cics[nr - 1]->key;
-
- for (i = 0; i < nr; i++)
- func(ioc, cics[i]);
- } while (nr == CIC_GANG_NR);
-
+ hlist_for_each_entry_rcu(cic, n, &ioc->cic_list, cic_list) {
+ func(ioc, cic);
+ called++;
+ }
rcu_read_unlock();
return called;
@@ -1190,6 +1171,7 @@
spin_lock_irqsave(&ioc->lock, flags);
radix_tree_delete(&ioc->radix_root, cic->dead_key);
+ hlist_del_rcu(&cic->cic_list);
spin_unlock_irqrestore(&ioc->lock, flags);
kmem_cache_free(cfq_ioc_pool, cic);
@@ -1280,6 +1262,7 @@
if (cic) {
cic->last_end_request = jiffies;
INIT_LIST_HEAD(&cic->queue_list);
+ INIT_HLIST_NODE(&cic->cic_list);
cic->dtor = cfq_free_io_context;
cic->exit = cfq_exit_io_context;
elv_ioc_count_inc(ioc_count);
@@ -1501,6 +1484,7 @@
rcu_assign_pointer(ioc->ioc_data, NULL);
radix_tree_delete(&ioc->radix_root, (unsigned long) cfqd);
+ hlist_del_rcu(&cic->cic_list);
spin_unlock_irqrestore(&ioc->lock, flags);
cfq_cic_free(cic);
@@ -1561,6 +1545,8 @@
spin_lock_irqsave(&ioc->lock, flags);
ret = radix_tree_insert(&ioc->radix_root,
(unsigned long) cfqd, cic);
+ if (!ret)
+ hlist_add_head_rcu(&cic->cic_list, &ioc->cic_list);
spin_unlock_irqrestore(&ioc->lock, flags);
radix_tree_preload_end();
diff --git a/block/elevator.c b/block/elevator.c
index bafbae0..88318c3 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -134,6 +134,21 @@
spin_lock(&elv_list_lock);
e = elevator_find(name);
+ if (!e) {
+ char elv[ELV_NAME_MAX + strlen("-iosched")];
+
+ spin_unlock(&elv_list_lock);
+
+ if (!strcmp(name, "anticipatory"))
+ sprintf(elv, "as-iosched");
+ else
+ sprintf(elv, "%s-iosched", name);
+
+ request_module(elv);
+ spin_lock(&elv_list_lock);
+ e = elevator_find(name);
+ }
+
if (e && !try_module_get(e->elevator_owner))
e = NULL;
diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c
index 9675b34..e993cac 100644
--- a/block/scsi_ioctl.c
+++ b/block/scsi_ioctl.c
@@ -266,7 +266,7 @@
hdr->info = 0;
if (hdr->masked_status || hdr->host_status || hdr->driver_status)
hdr->info |= SG_INFO_CHECK;
- hdr->resid = rq->data_len;
+ hdr->resid = rq->raw_data_len;
hdr->sb_len_wr = 0;
if (rq->sense_len && hdr->sbp) {
@@ -528,6 +528,7 @@
rq = blk_get_request(q, WRITE, __GFP_WAIT);
rq->cmd_type = REQ_TYPE_BLOCK_PC;
rq->data = NULL;
+ rq->raw_data_len = 0;
rq->data_len = 0;
rq->timeout = BLK_DEFAULT_SG_TIMEOUT;
memset(rq->cmd, 0, sizeof(rq->cmd));
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 29e71bd..3c06e45 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -1975,16 +1975,11 @@
struct ahci_port_priv *pp;
void *mem;
dma_addr_t mem_dma;
- int rc;
pp = devm_kzalloc(dev, sizeof(*pp), GFP_KERNEL);
if (!pp)
return -ENOMEM;
- rc = ata_pad_alloc(ap, dev);
- if (rc)
- return rc;
-
mem = dmam_alloc_coherent(dev, AHCI_PORT_PRIV_DMA_SZ, &mem_dma,
GFP_KERNEL);
if (!mem)
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index f46eb6f..def3682 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4493,30 +4493,13 @@
struct ata_port *ap = qc->ap;
struct scatterlist *sg = qc->sg;
int dir = qc->dma_dir;
- void *pad_buf = NULL;
WARN_ON(sg == NULL);
- VPRINTK("unmapping %u sg elements\n", qc->mapped_n_elem);
+ VPRINTK("unmapping %u sg elements\n", qc->n_elem);
- /* if we padded the buffer out to 32-bit bound, and data
- * xfer direction is from-device, we must copy from the
- * pad buffer back into the supplied buffer
- */
- if (qc->pad_len && !(qc->tf.flags & ATA_TFLAG_WRITE))
- pad_buf = ap->pad + (qc->tag * ATA_DMA_PAD_SZ);
-
- if (qc->mapped_n_elem)
- dma_unmap_sg(ap->dev, sg, qc->mapped_n_elem, dir);
- /* restore last sg */
- if (qc->last_sg)
- *qc->last_sg = qc->saved_last_sg;
- if (pad_buf) {
- struct scatterlist *psg = &qc->extra_sg[1];
- void *addr = kmap_atomic(sg_page(psg), KM_IRQ0);
- memcpy(addr + psg->offset, pad_buf, qc->pad_len);
- kunmap_atomic(addr, KM_IRQ0);
- }
+ if (qc->n_elem)
+ dma_unmap_sg(ap->dev, sg, qc->n_elem, dir);
qc->flags &= ~ATA_QCFLAG_DMAMAP;
qc->sg = NULL;
@@ -4659,43 +4642,6 @@
}
/**
- * atapi_qc_may_overflow - Check whether data transfer may overflow
- * @qc: ATA command in question
- *
- * ATAPI commands which transfer variable length data to host
- * might overflow due to application error or hardare bug. This
- * function checks whether overflow should be drained and ignored
- * for @qc.
- *
- * LOCKING:
- * None.
- *
- * RETURNS:
- * 1 if @qc may overflow; otherwise, 0.
- */
-static int atapi_qc_may_overflow(struct ata_queued_cmd *qc)
-{
- if (qc->tf.protocol != ATAPI_PROT_PIO &&
- qc->tf.protocol != ATAPI_PROT_DMA)
- return 0;
-
- if (qc->tf.flags & ATA_TFLAG_WRITE)
- return 0;
-
- switch (qc->cdb[0]) {
- case READ_10:
- case READ_12:
- case WRITE_10:
- case WRITE_12:
- case GPCMD_READ_CD:
- case GPCMD_READ_CD_MSF:
- return 0;
- }
-
- return 1;
-}
-
-/**
* ata_std_qc_defer - Check whether a qc needs to be deferred
* @qc: ATA command in question
*
@@ -4782,97 +4728,6 @@
qc->cursg = qc->sg;
}
-static unsigned int ata_sg_setup_extra(struct ata_queued_cmd *qc,
- unsigned int *n_elem_extra,
- unsigned int *nbytes_extra)
-{
- struct ata_port *ap = qc->ap;
- unsigned int n_elem = qc->n_elem;
- struct scatterlist *lsg, *copy_lsg = NULL, *tsg = NULL, *esg = NULL;
-
- *n_elem_extra = 0;
- *nbytes_extra = 0;
-
- /* needs padding? */
- qc->pad_len = qc->nbytes & 3;
-
- if (likely(!qc->pad_len))
- return n_elem;
-
- /* locate last sg and save it */
- lsg = sg_last(qc->sg, n_elem);
- qc->last_sg = lsg;
- qc->saved_last_sg = *lsg;
-
- sg_init_table(qc->extra_sg, ARRAY_SIZE(qc->extra_sg));
-
- if (qc->pad_len) {
- struct scatterlist *psg = &qc->extra_sg[1];
- void *pad_buf = ap->pad + (qc->tag * ATA_DMA_PAD_SZ);
- unsigned int offset;
-
- WARN_ON(qc->dev->class != ATA_DEV_ATAPI);
-
- memset(pad_buf, 0, ATA_DMA_PAD_SZ);
-
- /* psg->page/offset are used to copy to-be-written
- * data in this function or read data in ata_sg_clean.
- */
- offset = lsg->offset + lsg->length - qc->pad_len;
- sg_set_page(psg, nth_page(sg_page(lsg), offset >> PAGE_SHIFT),
- qc->pad_len, offset_in_page(offset));
-
- if (qc->tf.flags & ATA_TFLAG_WRITE) {
- void *addr = kmap_atomic(sg_page(psg), KM_IRQ0);
- memcpy(pad_buf, addr + psg->offset, qc->pad_len);
- kunmap_atomic(addr, KM_IRQ0);
- }
-
- sg_dma_address(psg) = ap->pad_dma + (qc->tag * ATA_DMA_PAD_SZ);
- sg_dma_len(psg) = ATA_DMA_PAD_SZ;
-
- /* Trim the last sg entry and chain the original and
- * padding sg lists.
- *
- * Because chaining consumes one sg entry, one extra
- * sg entry is allocated and the last sg entry is
- * copied to it if the length isn't zero after padded
- * amount is removed.
- *
- * If the last sg entry is completely replaced by
- * padding sg entry, the first sg entry is skipped
- * while chaining.
- */
- lsg->length -= qc->pad_len;
- if (lsg->length) {
- copy_lsg = &qc->extra_sg[0];
- tsg = &qc->extra_sg[0];
- } else {
- n_elem--;
- tsg = &qc->extra_sg[1];
- }
-
- esg = &qc->extra_sg[1];
-
- (*n_elem_extra)++;
- (*nbytes_extra) += 4 - qc->pad_len;
- }
-
- if (copy_lsg)
- sg_set_page(copy_lsg, sg_page(lsg), lsg->length, lsg->offset);
-
- sg_chain(lsg, 1, tsg);
- sg_mark_end(esg);
-
- /* sglist can't start with chaining sg entry, fast forward */
- if (qc->sg == lsg) {
- qc->sg = tsg;
- qc->cursg = tsg;
- }
-
- return n_elem;
-}
-
/**
* ata_sg_setup - DMA-map the scatter-gather table associated with a command.
* @qc: Command with scatter-gather table to be mapped.
@@ -4889,26 +4744,17 @@
static int ata_sg_setup(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
- unsigned int n_elem, n_elem_extra, nbytes_extra;
+ unsigned int n_elem;
VPRINTK("ENTER, ata%u\n", ap->print_id);
- n_elem = ata_sg_setup_extra(qc, &n_elem_extra, &nbytes_extra);
+ n_elem = dma_map_sg(ap->dev, qc->sg, qc->n_elem, qc->dma_dir);
+ if (n_elem < 1)
+ return -1;
- if (n_elem) {
- n_elem = dma_map_sg(ap->dev, qc->sg, n_elem, qc->dma_dir);
- if (n_elem < 1) {
- /* restore last sg */
- if (qc->last_sg)
- *qc->last_sg = qc->saved_last_sg;
- return -1;
- }
- DPRINTK("%d sg elements mapped\n", n_elem);
- }
+ DPRINTK("%d sg elements mapped\n", n_elem);
- qc->n_elem = qc->mapped_n_elem = n_elem;
- qc->n_elem += n_elem_extra;
- qc->nbytes += nbytes_extra;
+ qc->n_elem = n_elem;
qc->flags |= ATA_QCFLAG_DMAMAP;
return 0;
@@ -5146,46 +4992,22 @@
*/
static int __atapi_pio_bytes(struct ata_queued_cmd *qc, unsigned int bytes)
{
- int do_write = (qc->tf.flags & ATA_TFLAG_WRITE);
+ int rw = (qc->tf.flags & ATA_TFLAG_WRITE) ? WRITE : READ;
struct ata_port *ap = qc->ap;
- struct ata_eh_info *ehi = &qc->dev->link->eh_info;
+ struct ata_device *dev = qc->dev;
+ struct ata_eh_info *ehi = &dev->link->eh_info;
struct scatterlist *sg;
struct page *page;
unsigned char *buf;
- unsigned int offset, count;
+ unsigned int offset, count, consumed;
next_sg:
sg = qc->cursg;
if (unlikely(!sg)) {
- /*
- * The end of qc->sg is reached and the device expects
- * more data to transfer. In order not to overrun qc->sg
- * and fulfill length specified in the byte count register,
- * - for read case, discard trailing data from the device
- * - for write case, padding zero data to the device
- */
- u16 pad_buf[1] = { 0 };
- unsigned int i;
-
- if (bytes > qc->curbytes - qc->nbytes + ATAPI_MAX_DRAIN) {
- ata_ehi_push_desc(ehi, "too much trailing data "
- "buf=%u cur=%u bytes=%u",
- qc->nbytes, qc->curbytes, bytes);
- return -1;
- }
-
- /* overflow is exptected for misc ATAPI commands */
- if (bytes && !atapi_qc_may_overflow(qc))
- ata_dev_printk(qc->dev, KERN_WARNING, "ATAPI %u bytes "
- "trailing data (cdb=%02x nbytes=%u)\n",
- bytes, qc->cdb[0], qc->nbytes);
-
- for (i = 0; i < (bytes + 1) / 2; i++)
- ap->ops->data_xfer(qc->dev, (unsigned char *)pad_buf, 2, do_write);
-
- qc->curbytes += bytes;
-
- return 0;
+ ata_ehi_push_desc(ehi, "unexpected or too much trailing data "
+ "buf=%u cur=%u bytes=%u",
+ qc->nbytes, qc->curbytes, bytes);
+ return -1;
}
page = sg_page(sg);
@@ -5211,18 +5033,16 @@
buf = kmap_atomic(page, KM_IRQ0);
/* do the actual data transfer */
- ap->ops->data_xfer(qc->dev, buf + offset, count, do_write);
+ consumed = ap->ops->data_xfer(dev, buf + offset, count, rw);
kunmap_atomic(buf, KM_IRQ0);
local_irq_restore(flags);
} else {
buf = page_address(page);
- ap->ops->data_xfer(qc->dev, buf + offset, count, do_write);
+ consumed = ap->ops->data_xfer(dev, buf + offset, count, rw);
}
- bytes -= count;
- if ((count & 1) && bytes)
- bytes--;
+ bytes -= min(bytes, consumed);
qc->curbytes += count;
qc->cursg_ofs += count;
@@ -5231,9 +5051,11 @@
qc->cursg_ofs = 0;
}
+ /* consumed can be larger than count only for the last transfer */
+ WARN_ON(qc->cursg && count != consumed);
+
if (bytes)
goto next_sg;
-
return 0;
}
@@ -5251,6 +5073,7 @@
{
struct ata_port *ap = qc->ap;
struct ata_device *dev = qc->dev;
+ struct ata_eh_info *ehi = &dev->link->eh_info;
unsigned int ireason, bc_lo, bc_hi, bytes;
int i_write, do_write = (qc->tf.flags & ATA_TFLAG_WRITE) ? 1 : 0;
@@ -5268,26 +5091,28 @@
/* shall be cleared to zero, indicating xfer of data */
if (unlikely(ireason & (1 << 0)))
- goto err_out;
+ goto atapi_check;
/* make sure transfer direction matches expected */
i_write = ((ireason & (1 << 1)) == 0) ? 1 : 0;
if (unlikely(do_write != i_write))
- goto err_out;
+ goto atapi_check;
if (unlikely(!bytes))
- goto err_out;
+ goto atapi_check;
VPRINTK("ata%u: xfering %d bytes\n", ap->print_id, bytes);
- if (__atapi_pio_bytes(qc, bytes))
+ if (unlikely(__atapi_pio_bytes(qc, bytes)))
goto err_out;
ata_altstatus(ap); /* flush */
return;
-err_out:
- ata_dev_printk(dev, KERN_INFO, "ATAPI check failed\n");
+ atapi_check:
+ ata_ehi_push_desc(ehi, "ATAPI check failed (ireason=0x%x bytes=%u)",
+ ireason, bytes);
+ err_out:
qc->err_mask |= AC_ERR_HSM;
ap->hsm_task_state = HSM_ST_ERR;
}
@@ -5972,9 +5797,6 @@
*/
BUG_ON(ata_is_data(prot) && (!qc->sg || !qc->n_elem || !qc->nbytes));
- /* ata_sg_setup() may update nbytes */
- qc->raw_nbytes = qc->nbytes;
-
if (ata_is_dma(prot) || (ata_is_pio(prot) &&
(ap->flags & ATA_FLAG_PIO_DMA)))
if (ata_sg_setup(qc))
@@ -6583,19 +6405,12 @@
int ata_port_start(struct ata_port *ap)
{
struct device *dev = ap->dev;
- int rc;
ap->prd = dmam_alloc_coherent(dev, ATA_PRD_TBL_SZ, &ap->prd_dma,
GFP_KERNEL);
if (!ap->prd)
return -ENOMEM;
- rc = ata_pad_alloc(ap, dev);
- if (rc)
- return rc;
-
- DPRINTK("prd alloc, virt %p, dma %llx\n", ap->prd,
- (unsigned long long)ap->prd_dma);
return 0;
}
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 1cea18f..dd41b1a 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -826,30 +826,61 @@
sdev->max_device_blocked = 1;
}
-static void ata_scsi_dev_config(struct scsi_device *sdev,
- struct ata_device *dev)
+/**
+ * atapi_drain_needed - Check whether data transfer may overflow
+ * @request: request to be checked
+ *
+ * ATAPI commands which transfer variable length data to host
+ * might overflow due to application error or hardare bug. This
+ * function checks whether overflow should be drained and ignored
+ * for @request.
+ *
+ * LOCKING:
+ * None.
+ *
+ * RETURNS:
+ * 1 if ; otherwise, 0.
+ */
+static int atapi_drain_needed(struct request *rq)
+{
+ if (likely(!blk_pc_request(rq)))
+ return 0;
+
+ if (!rq->data_len || (rq->cmd_flags & REQ_RW))
+ return 0;
+
+ return atapi_cmd_type(rq->cmd[0]) == ATAPI_MISC;
+}
+
+static int ata_scsi_dev_config(struct scsi_device *sdev,
+ struct ata_device *dev)
{
/* configure max sectors */
blk_queue_max_sectors(sdev->request_queue, dev->max_sectors);
- /* SATA DMA transfers must be multiples of 4 byte, so
- * we need to pad ATAPI transfers using an extra sg.
- * Decrement max hw segments accordingly.
- */
if (dev->class == ATA_DEV_ATAPI) {
struct request_queue *q = sdev->request_queue;
- blk_queue_max_hw_segments(q, q->max_hw_segments - 1);
+ void *buf;
/* set the min alignment */
blk_queue_update_dma_alignment(sdev->request_queue,
ATA_DMA_PAD_SZ - 1);
- } else
+
+ /* configure draining */
+ buf = kmalloc(ATAPI_MAX_DRAIN, q->bounce_gfp | GFP_KERNEL);
+ if (!buf) {
+ ata_dev_printk(dev, KERN_ERR,
+ "drain buffer allocation failed\n");
+ return -ENOMEM;
+ }
+
+ blk_queue_dma_drain(q, atapi_drain_needed, buf, ATAPI_MAX_DRAIN);
+ } else {
/* ATA devices must be sector aligned */
blk_queue_update_dma_alignment(sdev->request_queue,
ATA_SECT_SIZE - 1);
-
- if (dev->class == ATA_DEV_ATA)
sdev->manage_start_stop = 1;
+ }
if (dev->flags & ATA_DFLAG_AN)
set_bit(SDEV_EVT_MEDIA_CHANGE, sdev->supported_events);
@@ -861,6 +892,8 @@
depth = min(ATA_MAX_QUEUE - 1, depth);
scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, depth);
}
+
+ return 0;
}
/**
@@ -879,13 +912,14 @@
{
struct ata_port *ap = ata_shost_to_port(sdev->host);
struct ata_device *dev = __ata_scsi_find_dev(ap, sdev);
+ int rc = 0;
ata_scsi_sdev_config(sdev);
if (dev)
- ata_scsi_dev_config(sdev, dev);
+ rc = ata_scsi_dev_config(sdev, dev);
- return 0;
+ return rc;
}
/**
@@ -905,6 +939,7 @@
void ata_scsi_slave_destroy(struct scsi_device *sdev)
{
struct ata_port *ap = ata_shost_to_port(sdev->host);
+ struct request_queue *q = sdev->request_queue;
unsigned long flags;
struct ata_device *dev;
@@ -920,6 +955,10 @@
ata_port_schedule_eh(ap);
}
spin_unlock_irqrestore(ap->lock, flags);
+
+ kfree(q->dma_drain_buffer);
+ q->dma_drain_buffer = NULL;
+ q->dma_drain_size = 0;
}
/**
@@ -2500,7 +2539,7 @@
* want to set it properly, and for DMA where it is
* effectively meaningless.
*/
- nbytes = min(qc->nbytes, (unsigned int)63 * 1024);
+ nbytes = min(scmd->request->raw_data_len, (unsigned int)63 * 1024);
/* Most ATAPI devices which honor transfer chunk size don't
* behave according to the spec when odd chunk size which
@@ -3555,7 +3594,7 @@
* @ap: Port to initialize
*
* Called just after data structures for each port are
- * initialized. Allocates DMA pad.
+ * initialized.
*
* May be used as the port_start() entry in ata_port_operations.
*
@@ -3564,7 +3603,7 @@
*/
int ata_sas_port_start(struct ata_port *ap)
{
- return ata_pad_alloc(ap, ap->dev);
+ return 0;
}
EXPORT_SYMBOL_GPL(ata_sas_port_start);
@@ -3572,8 +3611,6 @@
* ata_port_stop - Undo ata_sas_port_start()
* @ap: Port to shut down
*
- * Frees the DMA pad.
- *
* May be used as the port_stop() entry in ata_port_operations.
*
* LOCKING:
@@ -3582,7 +3619,6 @@
void ata_sas_port_stop(struct ata_port *ap)
{
- ata_pad_free(ap, ap->dev);
}
EXPORT_SYMBOL_GPL(ata_sas_port_stop);
diff --git a/drivers/ata/pata_icside.c b/drivers/ata/pata_icside.c
index 5b8586d..f97068b 100644
--- a/drivers/ata/pata_icside.c
+++ b/drivers/ata/pata_icside.c
@@ -304,12 +304,6 @@
}
-static int pata_icside_port_start(struct ata_port *ap)
-{
- /* No PRD to alloc */
- return ata_pad_alloc(ap, ap->dev);
-}
-
static struct scsi_host_template pata_icside_sht = {
.module = THIS_MODULE,
.name = DRV_NAME,
@@ -389,8 +383,6 @@
.irq_clear = ata_dummy_noret,
.irq_on = ata_irq_on,
- .port_start = pata_icside_port_start,
-
.bmdma_stop = pata_icside_bmdma_stop,
.bmdma_status = pata_icside_bmdma_status,
};
diff --git a/drivers/ata/sata_fsl.c b/drivers/ata/sata_fsl.c
index efcb66b6..9323dd0 100644
--- a/drivers/ata/sata_fsl.c
+++ b/drivers/ata/sata_fsl.c
@@ -601,21 +601,9 @@
if (!pp)
return -ENOMEM;
- /*
- * allocate per command dma alignment pad buffer, which is used
- * internally by libATA to ensure that all transfers ending on
- * unaligned boundaries are padded, to align on Dword boundaries
- */
- retval = ata_pad_alloc(ap, dev);
- if (retval) {
- kfree(pp);
- return retval;
- }
-
mem = dma_alloc_coherent(dev, SATA_FSL_PORT_PRIV_DMA_SZ, &mem_dma,
GFP_KERNEL);
if (!mem) {
- ata_pad_free(ap, dev);
kfree(pp);
return -ENOMEM;
}
@@ -694,7 +682,6 @@
dma_free_coherent(dev, SATA_FSL_PORT_PRIV_DMA_SZ,
pp->cmdslot, pp->cmdslot_paddr);
- ata_pad_free(ap, dev);
kfree(pp);
}
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index 2ecd44d..1c1fbf3 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -1158,17 +1158,13 @@
struct mv_port_priv *pp;
void __iomem *port_mmio = mv_ap_base(ap);
unsigned long flags;
- int tag, rc;
+ int tag;
pp = devm_kzalloc(dev, sizeof(*pp), GFP_KERNEL);
if (!pp)
return -ENOMEM;
ap->private_data = pp;
- rc = ata_pad_alloc(ap, dev);
- if (rc)
- return rc;
-
pp->crqb = dma_pool_alloc(hpriv->crqb_pool, GFP_KERNEL, &pp->crqb_dma);
if (!pp->crqb)
return -ENOMEM;
diff --git a/drivers/ata/sata_sil24.c b/drivers/ata/sata_sil24.c
index b4b1f91..df7988d 100644
--- a/drivers/ata/sata_sil24.c
+++ b/drivers/ata/sata_sil24.c
@@ -1234,7 +1234,6 @@
union sil24_cmd_block *cb;
size_t cb_size = sizeof(*cb) * SIL24_MAX_CMDS;
dma_addr_t cb_dma;
- int rc;
pp = devm_kzalloc(dev, sizeof(*pp), GFP_KERNEL);
if (!pp)
@@ -1247,10 +1246,6 @@
return -ENOMEM;
memset(cb, 0, cb_size);
- rc = ata_pad_alloc(ap, dev);
- if (rc)
- return rc;
-
pp->cmd_block = cb;
pp->cmd_block_dma = cb_dma;
diff --git a/drivers/infiniband/hw/mthca/mthca_mr.c b/drivers/infiniband/hw/mthca/mthca_mr.c
index 3b69855..3538da1 100644
--- a/drivers/infiniband/hw/mthca/mthca_mr.c
+++ b/drivers/infiniband/hw/mthca/mthca_mr.c
@@ -686,7 +686,7 @@
mthca_table_put(dev, dev->mr_table.mpt_table, key);
err_out_mpt_free:
- mthca_free(&dev->mr_table.mpt_alloc, mr->ibmr.lkey);
+ mthca_free(&dev->mr_table.mpt_alloc, key);
return err;
}
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
index 7dd2ec4..52b1beb 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
@@ -824,7 +824,6 @@
struct ipoib_dev_priv *priv = netdev_priv(dev);
struct ipoib_cm_rx *p;
unsigned long begin;
- LIST_HEAD(list);
int ret;
if (!IPOIB_CM_SUPPORTED(dev->dev_addr) || !priv->cm.id)
@@ -857,9 +856,12 @@
/*
* assume the HW is wedged and just free up everything.
*/
- list_splice_init(&priv->cm.rx_flush_list, &list);
- list_splice_init(&priv->cm.rx_error_list, &list);
- list_splice_init(&priv->cm.rx_drain_list, &list);
+ list_splice_init(&priv->cm.rx_flush_list,
+ &priv->cm.rx_reap_list);
+ list_splice_init(&priv->cm.rx_error_list,
+ &priv->cm.rx_reap_list);
+ list_splice_init(&priv->cm.rx_drain_list,
+ &priv->cm.rx_reap_list);
break;
}
spin_unlock_irq(&priv->lock);
diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
index 2928ef22..5160587 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -1695,14 +1695,15 @@
* information for a retry or there was no other
* mirror in-sync.
*/
- DMERR_LIMIT("Mirror read failed from %s.",
- m->dev->name);
+ DMERR_LIMIT("Mirror read failed.");
return -EIO;
}
+
+ m = read_record->m;
+
DMERR("Mirror read failed from %s. Trying alternative device.",
m->dev->name);
- m = read_record->m;
fail_mirror(m, DM_RAID1_READ_ERROR);
/*
diff --git a/drivers/net/e1000/e1000_ethtool.c b/drivers/net/e1000/e1000_ethtool.c
index d876787..85e66f4 100644
--- a/drivers/net/e1000/e1000_ethtool.c
+++ b/drivers/net/e1000/e1000_ethtool.c
@@ -50,7 +50,7 @@
int stat_offset;
};
-#define E1000_STAT(m) sizeof(((struct e1000_adapter *)0)->m), \
+#define E1000_STAT(m) FIELD_SIZEOF(struct e1000_adapter, m), \
offsetof(struct e1000_adapter, m)
static const struct e1000_stats e1000_gstrings_stats[] = {
{ "rx_packets", E1000_STAT(stats.gprc) },
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index d4ee8ec..0991648 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -1195,6 +1195,14 @@
printk("%s\n", print_mac(mac, netdev->dev_addr));
+ if (adapter->hw.bus_type == e1000_bus_type_pci_express) {
+ DPRINTK(PROBE, WARNING, "This device (id %04x:%04x) will no "
+ "longer be supported by this driver in the future.\n",
+ pdev->vendor, pdev->device);
+ DPRINTK(PROBE, WARNING, "please use the \"e1000e\" "
+ "driver instead.\n");
+ }
+
/* reset the hardware with the new settings */
e1000_reset(adapter);
diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c
index f58f017..3031d6d 100644
--- a/drivers/net/e1000e/netdev.c
+++ b/drivers/net/e1000e/netdev.c
@@ -1055,23 +1055,6 @@
}
}
-static void e1000_release_manageability(struct e1000_adapter *adapter)
-{
- if (adapter->flags & FLAG_MNG_PT_ENABLED) {
- struct e1000_hw *hw = &adapter->hw;
-
- u32 manc = er32(MANC);
-
- /* re-enable hardware interception of ARP */
- manc |= E1000_MANC_ARP_EN;
- manc &= ~E1000_MANC_EN_MNG2HOST;
-
- /* don't explicitly have to mess with MANC2H since
- * MANC has an enable disable that gates MANC2H */
- ew32(MANC, manc);
- }
-}
-
/**
* @e1000_alloc_ring - allocate memory for a ring structure
**/
@@ -1561,9 +1544,6 @@
manc = er32(MANC);
- /* disable hardware interception of ARP */
- manc &= ~(E1000_MANC_ARP_EN);
-
/* enable receiving management packets to the host. this will probably
* generate destination unreachable messages from the host OS, but
* the packets will be handled on SMBUS */
@@ -1690,6 +1670,9 @@
else
rctl |= E1000_RCTL_LPE;
+ /* Enable hardware CRC frame stripping */
+ rctl |= E1000_RCTL_SECRC;
+
/* Setup buffer sizes */
rctl &= ~E1000_RCTL_SZ_4096;
rctl |= E1000_RCTL_BSEX;
@@ -1755,9 +1738,6 @@
/* Enable Packet split descriptors */
rctl |= E1000_RCTL_DTYP_PS;
-
- /* Enable hardware CRC frame stripping */
- rctl |= E1000_RCTL_SECRC;
psrctl |= adapter->rx_ps_bsize0 >>
E1000_PSRCTL_BSIZE0_SHIFT;
@@ -2008,7 +1988,7 @@
u16 mii_reg;
/* WoL is enabled */
- if (!adapter->wol)
+ if (adapter->wol)
return;
/* non-copper PHY? */
@@ -2140,8 +2120,6 @@
phy_data &= ~IGP02E1000_PM_SPD;
e1e_wphy(hw, IGP02E1000_PHY_POWER_MGMT, phy_data);
}
-
- e1000_release_manageability(adapter);
}
int e1000e_up(struct e1000_adapter *adapter)
@@ -3487,8 +3465,6 @@
pci_enable_wake(pdev, PCI_D3cold, 0);
}
- e1000_release_manageability(adapter);
-
/* make sure adapter isn't asleep if manageability is enabled */
if (adapter->flags & FLAG_MNG_PT_ENABLED) {
pci_enable_wake(pdev, PCI_D3hot, 1);
@@ -4054,8 +4030,6 @@
flush_scheduled_work();
- e1000_release_manageability(adapter);
-
/* Release control of h/w to f/w. If f/w is AMT enabled, this
* would have already happened in close and is redundant. */
e1000_release_hw_control(adapter);
diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c
index 0431e9e..4244fc2 100644
--- a/drivers/net/gianfar.c
+++ b/drivers/net/gianfar.c
@@ -130,8 +130,8 @@
static void gfar_set_multi(struct net_device *dev);
static void gfar_set_hash_for_addr(struct net_device *dev, u8 *addr);
static void gfar_configure_serdes(struct net_device *dev);
-extern int gfar_local_mdio_write(struct gfar_mii *regs, int mii_id, int regnum, u16 value);
-extern int gfar_local_mdio_read(struct gfar_mii *regs, int mii_id, int regnum);
+extern int gfar_local_mdio_write(struct gfar_mii __iomem *regs, int mii_id, int regnum, u16 value);
+extern int gfar_local_mdio_read(struct gfar_mii __iomem *regs, int mii_id, int regnum);
#ifdef CONFIG_GFAR_NAPI
static int gfar_poll(struct napi_struct *napi, int budget);
#endif
diff --git a/drivers/net/gianfar_mii.c b/drivers/net/gianfar_mii.c
index 6a647d9..2432762 100644
--- a/drivers/net/gianfar_mii.c
+++ b/drivers/net/gianfar_mii.c
@@ -51,7 +51,7 @@
* the local mdio pins, which may not be the same as system mdio bus, used for
* controlling the external PHYs, for example.
*/
-int gfar_local_mdio_write(struct gfar_mii *regs, int mii_id,
+int gfar_local_mdio_write(struct gfar_mii __iomem *regs, int mii_id,
int regnum, u16 value)
{
/* Set the PHY address and the register address we want to write */
@@ -77,7 +77,7 @@
* and are always tied to the local mdio pins, which may not be the
* same as system mdio bus, used for controlling the external PHYs, for eg.
*/
-int gfar_local_mdio_read(struct gfar_mii *regs, int mii_id, int regnum)
+int gfar_local_mdio_read(struct gfar_mii __iomem *regs, int mii_id, int regnum)
{
u16 value;
diff --git a/drivers/net/hamradio/mkiss.c b/drivers/net/hamradio/mkiss.c
index cfcd15a..30c9b3b0 100644
--- a/drivers/net/hamradio/mkiss.c
+++ b/drivers/net/hamradio/mkiss.c
@@ -289,7 +289,6 @@
*ax->rbuff &= ~0x20;
}
}
- spin_unlock_bh(&ax->buflock);
count = ax->rcount;
@@ -297,17 +296,17 @@
printk(KERN_ERR "mkiss: %s: memory squeeze, dropping packet.\n",
ax->dev->name);
ax->stats.rx_dropped++;
+ spin_unlock_bh(&ax->buflock);
return;
}
- spin_lock_bh(&ax->buflock);
memcpy(skb_put(skb,count), ax->rbuff, count);
- spin_unlock_bh(&ax->buflock);
skb->protocol = ax25_type_trans(skb, ax->dev);
netif_rx(skb);
ax->dev->last_rx = jiffies;
ax->stats.rx_packets++;
ax->stats.rx_bytes += count;
+ spin_unlock_bh(&ax->buflock);
}
static void kiss_unesc(struct mkiss *ax, unsigned char s)
diff --git a/drivers/net/igb/igb_ethtool.c b/drivers/net/igb/igb_ethtool.c
index f69721e..0447f9b 100644
--- a/drivers/net/igb/igb_ethtool.c
+++ b/drivers/net/igb/igb_ethtool.c
@@ -43,7 +43,7 @@
int stat_offset;
};
-#define IGB_STAT(m) sizeof(((struct igb_adapter *)0)->m), \
+#define IGB_STAT(m) FIELD_SIZEOF(struct igb_adapter, m), \
offsetof(struct igb_adapter, m)
static const struct igb_stats igb_gstrings_stats[] = {
{ "rx_packets", IGB_STAT(stats.gprc) },
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index d4eb8e2..bff280e 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -606,9 +606,6 @@
u32 manc2h = rd32(E1000_MANC2H);
u32 manc = rd32(E1000_MANC);
- /* disable hardware interception of ARP */
- manc &= ~(E1000_MANC_ARP_EN);
-
/* enable receiving management packets to the host */
/* this will probably generate destination unreachable messages
* from the host OS, but the packets will be handled on SMBUS */
@@ -623,25 +620,6 @@
}
}
-static void igb_release_manageability(struct igb_adapter *adapter)
-{
- struct e1000_hw *hw = &adapter->hw;
-
- if (adapter->en_mng_pt) {
- u32 manc = rd32(E1000_MANC);
-
- /* re-enable hardware interception of ARP */
- manc |= E1000_MANC_ARP_EN;
- manc &= ~E1000_MANC_EN_MNG2HOST;
-
- /* don't explicitly have to mess with MANC2H since
- * MANC has an enable disable that gates MANC2H */
-
- /* XXX stop the hardware watchdog ? */
- wr32(E1000_MANC, manc);
- }
-}
-
/**
* igb_configure - configure the hardware for RX and TX
* @adapter: private board structure
@@ -844,7 +822,6 @@
igb_reset_adaptive(&adapter->hw);
adapter->hw.phy.ops.get_phy_info(&adapter->hw);
- igb_release_manageability(adapter);
}
/**
@@ -1178,9 +1155,6 @@
flush_scheduled_work();
-
- igb_release_manageability(adapter);
-
/* Release control of h/w to f/w. If f/w is AMT enabled, this
* would have already happened in close and is redundant. */
igb_release_hw_control(adapter);
@@ -3955,8 +3929,6 @@
pci_enable_wake(pdev, PCI_D3cold, 0);
}
- igb_release_manageability(adapter);
-
/* make sure adapter isn't asleep if manageability is enabled */
if (adapter->en_mng_pt) {
pci_enable_wake(pdev, PCI_D3hot, 1);
diff --git a/drivers/net/ixgb/ixgb_ethtool.c b/drivers/net/ixgb/ixgb_ethtool.c
index a267dd8..53a9fd0 100644
--- a/drivers/net/ixgb/ixgb_ethtool.c
+++ b/drivers/net/ixgb/ixgb_ethtool.c
@@ -49,7 +49,7 @@
int stat_offset;
};
-#define IXGB_STAT(m) sizeof(((struct ixgb_adapter *)0)->m), \
+#define IXGB_STAT(m) FIELD_SIZEOF(struct ixgb_adapter, m), \
offsetof(struct ixgb_adapter, m)
static struct ixgb_stats ixgb_gstrings_stats[] = {
{"rx_packets", IXGB_STAT(net_stats.rx_packets)},
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index ead49e5..23d0a4a 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -220,7 +220,6 @@
tx_ring->stats.bytes += tx_buffer_info->length;
if (cleaned) {
struct sk_buff *skb = tx_buffer_info->skb;
-#ifdef NETIF_F_TSO
unsigned int segs, bytecount;
segs = skb_shinfo(skb)->gso_segs ?: 1;
/* multiply data chunks by size of headers */
@@ -228,10 +227,6 @@
skb->len;
total_tx_packets += segs;
total_tx_bytes += bytecount;
-#else
- total_tx_packets++;
- total_tx_bytes += skb->len;
-#endif
}
ixgbe_unmap_and_free_tx_resource(adapter,
tx_buffer_info);
@@ -1942,6 +1937,10 @@
int err;
u32 num_rx_queues = adapter->num_rx_queues;
+ /* disallow open during test */
+ if (test_bit(__IXGBE_TESTING, &adapter->state))
+ return -EBUSY;
+
try_intr_reinit:
/* allocate transmit descriptors */
err = ixgbe_setup_all_tx_resources(adapter);
@@ -2278,11 +2277,29 @@
IXGBE_ADVTXD_DTYP_CTXT);
if (skb->ip_summed == CHECKSUM_PARTIAL) {
- if (skb->protocol == htons(ETH_P_IP))
+ switch (skb->protocol) {
+ case __constant_htons(ETH_P_IP):
type_tucmd_mlhl |= IXGBE_ADVTXD_TUCMD_IPV4;
+ if (ip_hdr(skb)->protocol == IPPROTO_TCP)
+ type_tucmd_mlhl |=
+ IXGBE_ADVTXD_TUCMD_L4T_TCP;
+ break;
- if (skb->sk->sk_protocol == IPPROTO_TCP)
- type_tucmd_mlhl |= IXGBE_ADVTXD_TUCMD_L4T_TCP;
+ case __constant_htons(ETH_P_IPV6):
+ /* XXX what about other V6 headers?? */
+ if (ipv6_hdr(skb)->nexthdr == IPPROTO_TCP)
+ type_tucmd_mlhl |=
+ IXGBE_ADVTXD_TUCMD_L4T_TCP;
+ break;
+
+ default:
+ if (unlikely(net_ratelimit())) {
+ DPRINTK(PROBE, WARNING,
+ "partial checksum but proto=%x!\n",
+ skb->protocol);
+ }
+ break;
+ }
}
context_desc->type_tucmd_mlhl = cpu_to_le32(type_tucmd_mlhl);
@@ -2778,6 +2795,14 @@
hw->mac.type, hw->phy.type,
(part_num >> 8), (part_num & 0xff));
+ if (link_width <= IXGBE_PCI_LINK_WIDTH_4) {
+ dev_warn(&pdev->dev, "PCI-Express bandwidth available for "
+ "this card is not sufficient for optimal "
+ "performance.\n");
+ dev_warn(&pdev->dev, "For optimal performance a x8 "
+ "PCI-Express slot is required.\n");
+ }
+
/* reset the hardware with the new settings */
ixgbe_start_hw(hw);
diff --git a/drivers/net/niu.c b/drivers/net/niu.c
index 2fe14b0..e98ce1e 100644
--- a/drivers/net/niu.c
+++ b/drivers/net/niu.c
@@ -33,8 +33,8 @@
#define DRV_MODULE_NAME "niu"
#define PFX DRV_MODULE_NAME ": "
-#define DRV_MODULE_VERSION "0.6"
-#define DRV_MODULE_RELDATE "January 5, 2008"
+#define DRV_MODULE_VERSION "0.7"
+#define DRV_MODULE_RELDATE "February 18, 2008"
static char version[] __devinitdata =
DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
@@ -5147,7 +5147,12 @@
index++;
}
} else {
- for (i = 0; i < niu_num_alt_addr(np); i++) {
+ int alt_start;
+ if (np->flags & NIU_FLAGS_XMAC)
+ alt_start = 0;
+ else
+ alt_start = 1;
+ for (i = alt_start; i < niu_num_alt_addr(np); i++) {
err = niu_enable_alt_mac(np, i, 0);
if (err)
printk(KERN_WARNING PFX "%s: Error %d "
diff --git a/drivers/net/pcmcia/smc91c92_cs.c b/drivers/net/pcmcia/smc91c92_cs.c
index f18eca9..250eb19 100644
--- a/drivers/net/pcmcia/smc91c92_cs.c
+++ b/drivers/net/pcmcia/smc91c92_cs.c
@@ -559,8 +559,16 @@
/* Read the station address from the CIS. It is stored as the last
(fourth) string in the Version 1 Version/ID tuple. */
- if (link->prod_id[3]) {
- station_addr = link->prod_id[3];
+ tuple->DesiredTuple = CISTPL_VERS_1;
+ if (first_tuple(link, tuple, parse) != CS_SUCCESS) {
+ rc = -1;
+ goto free_cfg_mem;
+ }
+ /* Ugh -- the EM1144 card has two VERS_1 tuples!?! */
+ if (next_tuple(link, tuple, parse) != CS_SUCCESS)
+ first_tuple(link, tuple, parse);
+ if (parse->version_1.ns > 3) {
+ station_addr = parse->version_1.str + parse->version_1.ofs[3];
if (cvt_ascii_address(dev, station_addr) == 0) {
rc = 0;
goto free_cfg_mem;
diff --git a/drivers/net/tsi108_eth.c b/drivers/net/tsi108_eth.c
index 35d15e8..6f33f84 100644
--- a/drivers/net/tsi108_eth.c
+++ b/drivers/net/tsi108_eth.c
@@ -36,6 +36,7 @@
#include <linux/net.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
#include <linux/skbuff.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
@@ -297,18 +298,11 @@
u32 speed;
unsigned long flags;
- /* Do a dummy read, as for some reason the first read
- * after a link becomes up returns link down, even if
- * it's been a while since the link came up.
- */
-
spin_lock_irqsave(&phy_lock, flags);
if (!data->phy_ok)
goto out;
- tsi108_read_mii(data, MII_BMSR);
-
duplex = mii_check_media(&data->mii_if, netif_msg_link(data), data->init_media);
data->init_media = 0;
@@ -345,22 +339,21 @@
TSI_WRITE(TSI108_MAC_CFG2, mac_cfg2_reg);
TSI_WRITE(TSI108_EC_PORTCTRL, portctrl_reg);
-
- if (data->link_up == 0) {
- /* The manual says it can take 3-4 usecs for the speed change
- * to take effect.
- */
- udelay(5);
-
- spin_lock(&data->txlock);
- if (is_valid_ether_addr(dev->dev_addr) && data->txfree)
- netif_wake_queue(dev);
-
- data->link_up = 1;
- spin_unlock(&data->txlock);
- }
}
+ if (data->link_up == 0) {
+ /* The manual says it can take 3-4 usecs for the speed change
+ * to take effect.
+ */
+ udelay(5);
+
+ spin_lock(&data->txlock);
+ if (is_valid_ether_addr(dev->dev_addr) && data->txfree)
+ netif_wake_queue(dev);
+
+ data->link_up = 1;
+ spin_unlock(&data->txlock);
+ }
} else {
if (data->link_up == 1) {
netif_stop_queue(dev);
@@ -1274,12 +1267,11 @@
* PHY_STAT register before the link up status bit is set.
*/
- data->link_up = 1;
+ data->link_up = 0;
while (!((phyval = tsi108_read_mii(data, MII_BMSR)) &
BMSR_LSTATUS)) {
if (i++ > (MII_READ_DELAY / 10)) {
- data->link_up = 0;
break;
}
spin_unlock_irqrestore(&phy_lock, flags);
@@ -1287,6 +1279,7 @@
spin_lock_irqsave(&phy_lock, flags);
}
+ data->mii_if.supports_gmii = mii_check_gmii_support(&data->mii_if);
printk(KERN_DEBUG "PHY_STAT reg contains %08x\n", phyval);
data->phy_ok = 1;
data->init_media = 1;
@@ -1527,12 +1520,46 @@
TSI_WRITE(TSI108_EC_INTMASK, ~0);
}
+static int tsi108_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct tsi108_prv_data *data = netdev_priv(dev);
+ unsigned long flags;
+ int rc;
+
+ spin_lock_irqsave(&data->txlock, flags);
+ rc = mii_ethtool_gset(&data->mii_if, cmd);
+ spin_unlock_irqrestore(&data->txlock, flags);
+
+ return rc;
+}
+
+static int tsi108_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct tsi108_prv_data *data = netdev_priv(dev);
+ unsigned long flags;
+ int rc;
+
+ spin_lock_irqsave(&data->txlock, flags);
+ rc = mii_ethtool_sset(&data->mii_if, cmd);
+ spin_unlock_irqrestore(&data->txlock, flags);
+
+ return rc;
+}
+
static int tsi108_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
{
struct tsi108_prv_data *data = netdev_priv(dev);
+ if (!netif_running(dev))
+ return -EINVAL;
return generic_mii_ioctl(&data->mii_if, if_mii(rq), cmd, NULL);
}
+static const struct ethtool_ops tsi108_ethtool_ops = {
+ .get_link = ethtool_op_get_link,
+ .get_settings = tsi108_get_settings,
+ .set_settings = tsi108_set_settings,
+};
+
static int
tsi108_init_one(struct platform_device *pdev)
{
@@ -1584,7 +1611,6 @@
data->mii_if.phy_id = einfo->phy;
data->mii_if.phy_id_mask = 0x1f;
data->mii_if.reg_num_mask = 0x1f;
- data->mii_if.supports_gmii = mii_check_gmii_support(&data->mii_if);
data->phy = einfo->phy;
data->phy_type = einfo->phy_type;
@@ -1598,6 +1624,7 @@
dev->get_stats = tsi108_get_stats;
netif_napi_add(dev, &data->napi, tsi108_poll, 64);
dev->do_ioctl = tsi108_do_ioctl;
+ dev->ethtool_ops = &tsi108_ethtool_ops;
/* Apparently, the Linux networking code won't use scatter-gather
* if the hardware doesn't do checksums. However, it's faster
@@ -1629,6 +1656,7 @@
goto register_fail;
}
+ platform_set_drvdata(pdev, dev);
printk(KERN_INFO "%s: Tsi108 Gigabit Ethernet, MAC: %s\n",
dev->name, print_mac(mac, dev->dev_addr));
#ifdef DEBUG
diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c
index ddc8714..dfdaec0 100644
--- a/drivers/net/wireless/ath5k/base.c
+++ b/drivers/net/wireless/ath5k/base.c
@@ -1256,7 +1256,7 @@
if (ctl->flags & IEEE80211_TXCTL_NO_ACK)
flags |= AR5K_TXDESC_NOACK;
- pktlen = skb->len + FCS_LEN;
+ pktlen = skb->len;
if (!(ctl->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT)) {
keyidx = ctl->key_idx;
@@ -1952,7 +1952,7 @@
}
ds->ds_data = bf->skbaddr;
- ret = ah->ah_setup_tx_desc(ah, ds, skb->len + FCS_LEN,
+ ret = ah->ah_setup_tx_desc(ah, ds, skb->len,
ieee80211_get_hdrlen_from_skb(skb),
AR5K_PKT_TYPE_BEACON, (ctl->power_level * 2), ctl->tx_rate, 1,
AR5K_TXKEYIX_INVALID, antenna, flags, 0, 0);
diff --git a/drivers/net/wireless/ath5k/hw.c b/drivers/net/wireless/ath5k/hw.c
index 3a4bf403..1ab57aa 100644
--- a/drivers/net/wireless/ath5k/hw.c
+++ b/drivers/net/wireless/ath5k/hw.c
@@ -3506,7 +3506,7 @@
{
u32 frame_type;
struct ath5k_hw_2w_tx_desc *tx_desc;
- unsigned int buff_len;
+ unsigned int frame_len;
tx_desc = (struct ath5k_hw_2w_tx_desc *)&desc->ds_ctl0;
@@ -3537,22 +3537,25 @@
/* Setup control descriptor */
/* Verify and set frame length */
- if (pkt_len & ~AR5K_2W_TX_DESC_CTL0_FRAME_LEN)
+
+ /* remove padding we might have added before */
+ frame_len = pkt_len - (hdr_len & 3) + FCS_LEN;
+
+ if (frame_len & ~AR5K_2W_TX_DESC_CTL0_FRAME_LEN)
return -EINVAL;
- tx_desc->tx_control_0 = pkt_len & AR5K_2W_TX_DESC_CTL0_FRAME_LEN;
+ tx_desc->tx_control_0 = frame_len & AR5K_2W_TX_DESC_CTL0_FRAME_LEN;
/* Verify and set buffer length */
- buff_len = pkt_len - FCS_LEN;
/* NB: beacon's BufLen must be a multiple of 4 bytes */
if(type == AR5K_PKT_TYPE_BEACON)
- buff_len = roundup(buff_len, 4);
+ pkt_len = roundup(pkt_len, 4);
- if (buff_len & ~AR5K_2W_TX_DESC_CTL1_BUF_LEN)
+ if (pkt_len & ~AR5K_2W_TX_DESC_CTL1_BUF_LEN)
return -EINVAL;
- tx_desc->tx_control_1 = buff_len & AR5K_2W_TX_DESC_CTL1_BUF_LEN;
+ tx_desc->tx_control_1 = pkt_len & AR5K_2W_TX_DESC_CTL1_BUF_LEN;
/*
* Verify and set header length
@@ -3634,7 +3637,7 @@
{
struct ath5k_hw_4w_tx_desc *tx_desc;
struct ath5k_hw_tx_status *tx_status;
- unsigned int buff_len;
+ unsigned int frame_len;
ATH5K_TRACE(ah->ah_sc);
tx_desc = (struct ath5k_hw_4w_tx_desc *)&desc->ds_ctl0;
@@ -3669,22 +3672,25 @@
/* Setup control descriptor */
/* Verify and set frame length */
- if (pkt_len & ~AR5K_4W_TX_DESC_CTL0_FRAME_LEN)
+
+ /* remove padding we might have added before */
+ frame_len = pkt_len - (hdr_len & 3) + FCS_LEN;
+
+ if (frame_len & ~AR5K_4W_TX_DESC_CTL0_FRAME_LEN)
return -EINVAL;
- tx_desc->tx_control_0 = pkt_len & AR5K_4W_TX_DESC_CTL0_FRAME_LEN;
+ tx_desc->tx_control_0 = frame_len & AR5K_4W_TX_DESC_CTL0_FRAME_LEN;
/* Verify and set buffer length */
- buff_len = pkt_len - FCS_LEN;
/* NB: beacon's BufLen must be a multiple of 4 bytes */
if(type == AR5K_PKT_TYPE_BEACON)
- buff_len = roundup(buff_len, 4);
+ pkt_len = roundup(pkt_len, 4);
- if (buff_len & ~AR5K_4W_TX_DESC_CTL1_BUF_LEN)
+ if (pkt_len & ~AR5K_4W_TX_DESC_CTL1_BUF_LEN)
return -EINVAL;
- tx_desc->tx_control_1 = buff_len & AR5K_4W_TX_DESC_CTL1_BUF_LEN;
+ tx_desc->tx_control_1 = pkt_len & AR5K_4W_TX_DESC_CTL1_BUF_LEN;
tx_desc->tx_control_0 |=
AR5K_REG_SM(tx_power, AR5K_4W_TX_DESC_CTL0_XMIT_POWER) |
diff --git a/drivers/net/wireless/b43/b43.h b/drivers/net/wireless/b43/b43.h
index 08a011f..f13346b 100644
--- a/drivers/net/wireless/b43/b43.h
+++ b/drivers/net/wireless/b43/b43.h
@@ -14,6 +14,12 @@
#include "lo.h"
#include "phy.h"
+
+/* The unique identifier of the firmware that's officially supported by
+ * this driver version. */
+#define B43_SUPPORTED_FIRMWARE_ID "FW13"
+
+
#ifdef CONFIG_B43_DEBUG
# define B43_DEBUG 1
#else
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index ef65c41..51dfce1 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -58,6 +58,8 @@
MODULE_AUTHOR("Michael Buesch");
MODULE_LICENSE("GPL");
+MODULE_FIRMWARE(B43_SUPPORTED_FIRMWARE_ID);
+
static int modparam_bad_frames_preempt;
module_param_named(bad_frames_preempt, modparam_bad_frames_preempt, int, 0444);
@@ -1859,11 +1861,11 @@
err = -EOPNOTSUPP;
goto error;
}
- b43dbg(dev->wl, "Loading firmware version %u.%u "
- "(20%.2i-%.2i-%.2i %.2i:%.2i:%.2i)\n",
- fwrev, fwpatch,
- (fwdate >> 12) & 0xF, (fwdate >> 8) & 0xF, fwdate & 0xFF,
- (fwtime >> 11) & 0x1F, (fwtime >> 5) & 0x3F, fwtime & 0x1F);
+ b43info(dev->wl, "Loading firmware version %u.%u "
+ "(20%.2i-%.2i-%.2i %.2i:%.2i:%.2i)\n",
+ fwrev, fwpatch,
+ (fwdate >> 12) & 0xF, (fwdate >> 8) & 0xF, fwdate & 0xFF,
+ (fwtime >> 11) & 0x1F, (fwtime >> 5) & 0x3F, fwtime & 0x1F);
dev->fw.rev = fwrev;
dev->fw.patch = fwpatch;
@@ -4200,6 +4202,33 @@
.resume = b43_resume,
};
+static void b43_print_driverinfo(void)
+{
+ const char *feat_pci = "", *feat_pcmcia = "", *feat_nphy = "",
+ *feat_leds = "", *feat_rfkill = "";
+
+#ifdef CONFIG_B43_PCI_AUTOSELECT
+ feat_pci = "P";
+#endif
+#ifdef CONFIG_B43_PCMCIA
+ feat_pcmcia = "M";
+#endif
+#ifdef CONFIG_B43_NPHY
+ feat_nphy = "N";
+#endif
+#ifdef CONFIG_B43_LEDS
+ feat_leds = "L";
+#endif
+#ifdef CONFIG_B43_RFKILL
+ feat_rfkill = "R";
+#endif
+ printk(KERN_INFO "Broadcom 43xx driver loaded "
+ "[ Features: %s%s%s%s%s, Firmware-ID: "
+ B43_SUPPORTED_FIRMWARE_ID " ]\n",
+ feat_pci, feat_pcmcia, feat_nphy,
+ feat_leds, feat_rfkill);
+}
+
static int __init b43_init(void)
{
int err;
@@ -4211,6 +4240,7 @@
err = ssb_driver_register(&b43_ssb_driver);
if (err)
goto err_pcmcia_exit;
+ b43_print_driverinfo();
return err;
diff --git a/drivers/net/wireless/b43legacy/b43legacy.h b/drivers/net/wireless/b43legacy/b43legacy.h
index c80edd2..93d45b7 100644
--- a/drivers/net/wireless/b43legacy/b43legacy.h
+++ b/drivers/net/wireless/b43legacy/b43legacy.h
@@ -23,6 +23,10 @@
#include "phy.h"
+/* The unique identifier of the firmware that's officially supported by this
+ * driver version. */
+#define B43legacy_SUPPORTED_FIRMWARE_ID "FW10"
+
#define B43legacy_IRQWAIT_MAX_RETRIES 20
#define B43legacy_RX_MAX_SSI 60 /* best guess at max ssi */
diff --git a/drivers/net/wireless/b43legacy/dma.c b/drivers/net/wireless/b43legacy/dma.c
index 6e08405..e87b427 100644
--- a/drivers/net/wireless/b43legacy/dma.c
+++ b/drivers/net/wireless/b43legacy/dma.c
@@ -354,7 +354,8 @@
}
-u16 b43legacy_dmacontroller_base(int dma64bit, int controller_idx)
+static u16 b43legacy_dmacontroller_base(enum b43legacy_dmatype type,
+ int controller_idx)
{
static const u16 map64[] = {
B43legacy_MMIO_DMA64_BASE0,
@@ -373,7 +374,7 @@
B43legacy_MMIO_DMA32_BASE5,
};
- if (dma64bit) {
+ if (type == B43legacy_DMA_64BIT) {
B43legacy_WARN_ON(!(controller_idx >= 0 &&
controller_idx < ARRAY_SIZE(map64)));
return map64[controller_idx];
@@ -480,8 +481,9 @@
}
/* Reset the RX DMA channel */
-int b43legacy_dmacontroller_rx_reset(struct b43legacy_wldev *dev,
- u16 mmio_base, int dma64)
+static int b43legacy_dmacontroller_rx_reset(struct b43legacy_wldev *dev,
+ u16 mmio_base,
+ enum b43legacy_dmatype type)
{
int i;
u32 value;
@@ -489,13 +491,14 @@
might_sleep();
- offset = dma64 ? B43legacy_DMA64_RXCTL : B43legacy_DMA32_RXCTL;
+ offset = (type == B43legacy_DMA_64BIT) ?
+ B43legacy_DMA64_RXCTL : B43legacy_DMA32_RXCTL;
b43legacy_write32(dev, mmio_base + offset, 0);
for (i = 0; i < 10; i++) {
- offset = dma64 ? B43legacy_DMA64_RXSTATUS :
- B43legacy_DMA32_RXSTATUS;
+ offset = (type == B43legacy_DMA_64BIT) ?
+ B43legacy_DMA64_RXSTATUS : B43legacy_DMA32_RXSTATUS;
value = b43legacy_read32(dev, mmio_base + offset);
- if (dma64) {
+ if (type == B43legacy_DMA_64BIT) {
value &= B43legacy_DMA64_RXSTAT;
if (value == B43legacy_DMA64_RXSTAT_DISABLED) {
i = -1;
@@ -519,8 +522,9 @@
}
/* Reset the RX DMA channel */
-int b43legacy_dmacontroller_tx_reset(struct b43legacy_wldev *dev,
- u16 mmio_base, int dma64)
+static int b43legacy_dmacontroller_tx_reset(struct b43legacy_wldev *dev,
+ u16 mmio_base,
+ enum b43legacy_dmatype type)
{
int i;
u32 value;
@@ -529,10 +533,10 @@
might_sleep();
for (i = 0; i < 10; i++) {
- offset = dma64 ? B43legacy_DMA64_TXSTATUS :
- B43legacy_DMA32_TXSTATUS;
+ offset = (type == B43legacy_DMA_64BIT) ?
+ B43legacy_DMA64_TXSTATUS : B43legacy_DMA32_TXSTATUS;
value = b43legacy_read32(dev, mmio_base + offset);
- if (dma64) {
+ if (type == B43legacy_DMA_64BIT) {
value &= B43legacy_DMA64_TXSTAT;
if (value == B43legacy_DMA64_TXSTAT_DISABLED ||
value == B43legacy_DMA64_TXSTAT_IDLEWAIT ||
@@ -547,13 +551,14 @@
}
msleep(1);
}
- offset = dma64 ? B43legacy_DMA64_TXCTL : B43legacy_DMA32_TXCTL;
+ offset = (type == B43legacy_DMA_64BIT) ? B43legacy_DMA64_TXCTL :
+ B43legacy_DMA32_TXCTL;
b43legacy_write32(dev, mmio_base + offset, 0);
for (i = 0; i < 10; i++) {
- offset = dma64 ? B43legacy_DMA64_TXSTATUS :
- B43legacy_DMA32_TXSTATUS;
+ offset = (type == B43legacy_DMA_64BIT) ?
+ B43legacy_DMA64_TXSTATUS : B43legacy_DMA32_TXSTATUS;
value = b43legacy_read32(dev, mmio_base + offset);
- if (dma64) {
+ if (type == B43legacy_DMA_64BIT) {
value &= B43legacy_DMA64_TXSTAT;
if (value == B43legacy_DMA64_TXSTAT_DISABLED) {
i = -1;
@@ -578,6 +583,32 @@
return 0;
}
+/* Check if a DMA mapping address is invalid. */
+static bool b43legacy_dma_mapping_error(struct b43legacy_dmaring *ring,
+ dma_addr_t addr,
+ size_t buffersize)
+{
+ if (unlikely(dma_mapping_error(addr)))
+ return 1;
+
+ switch (ring->type) {
+ case B43legacy_DMA_30BIT:
+ if ((u64)addr + buffersize > (1ULL << 30))
+ return 1;
+ break;
+ case B43legacy_DMA_32BIT:
+ if ((u64)addr + buffersize > (1ULL << 32))
+ return 1;
+ break;
+ case B43legacy_DMA_64BIT:
+ /* Currently we can't have addresses beyond 64 bits in the kernel. */
+ break;
+ }
+
+ /* The address is OK. */
+ return 0;
+}
+
static int setup_rx_descbuffer(struct b43legacy_dmaring *ring,
struct b43legacy_dmadesc_generic *desc,
struct b43legacy_dmadesc_meta *meta,
@@ -595,7 +626,7 @@
return -ENOMEM;
dmaaddr = map_descbuffer(ring, skb->data,
ring->rx_buffersize, 0);
- if (dma_mapping_error(dmaaddr)) {
+ if (b43legacy_dma_mapping_error(ring, dmaaddr, ring->rx_buffersize)) {
/* ugh. try to realloc in zone_dma */
gfp_flags |= GFP_DMA;
@@ -608,7 +639,7 @@
ring->rx_buffersize, 0);
}
- if (dma_mapping_error(dmaaddr)) {
+ if (b43legacy_dma_mapping_error(ring, dmaaddr, ring->rx_buffersize)) {
dev_kfree_skb_any(skb);
return -EIO;
}
@@ -674,7 +705,7 @@
u32 trans = ssb_dma_translation(ring->dev->dev);
if (ring->tx) {
- if (ring->dma64) {
+ if (ring->type == B43legacy_DMA_64BIT) {
u64 ringbase = (u64)(ring->dmabase);
addrext = ((ringbase >> 32) & SSB_DMA_TRANSLATION_MASK)
@@ -709,7 +740,7 @@
err = alloc_initial_descbuffers(ring);
if (err)
goto out;
- if (ring->dma64) {
+ if (ring->type == B43legacy_DMA_64BIT) {
u64 ringbase = (u64)(ring->dmabase);
addrext = ((ringbase >> 32) & SSB_DMA_TRANSLATION_MASK)
@@ -760,16 +791,16 @@
{
if (ring->tx) {
b43legacy_dmacontroller_tx_reset(ring->dev, ring->mmio_base,
- ring->dma64);
- if (ring->dma64) {
+ ring->type);
+ if (ring->type == B43legacy_DMA_64BIT) {
b43legacy_dma_write(ring, B43legacy_DMA64_TXRINGLO, 0);
b43legacy_dma_write(ring, B43legacy_DMA64_TXRINGHI, 0);
} else
b43legacy_dma_write(ring, B43legacy_DMA32_TXRING, 0);
} else {
b43legacy_dmacontroller_rx_reset(ring->dev, ring->mmio_base,
- ring->dma64);
- if (ring->dma64) {
+ ring->type);
+ if (ring->type == B43legacy_DMA_64BIT) {
b43legacy_dma_write(ring, B43legacy_DMA64_RXRINGLO, 0);
b43legacy_dma_write(ring, B43legacy_DMA64_RXRINGHI, 0);
} else
@@ -824,11 +855,10 @@
/* Main initialization function. */
static
-struct b43legacy_dmaring *b43legacy_setup_dmaring(
- struct b43legacy_wldev *dev,
- int controller_index,
- int for_tx,
- int dma64)
+struct b43legacy_dmaring *b43legacy_setup_dmaring(struct b43legacy_wldev *dev,
+ int controller_index,
+ int for_tx,
+ enum b43legacy_dmatype type)
{
struct b43legacy_dmaring *ring;
int err;
@@ -838,6 +868,7 @@
ring = kzalloc(sizeof(*ring), GFP_KERNEL);
if (!ring)
goto out;
+ ring->type = type;
nr_slots = B43legacy_RXRING_SLOTS;
if (for_tx)
@@ -855,12 +886,12 @@
goto err_kfree_meta;
/* test for ability to dma to txhdr_cache */
- dma_test = dma_map_single(dev->dev->dev,
- ring->txhdr_cache,
- sizeof(struct b43legacy_txhdr_fw3),
- DMA_TO_DEVICE);
+ dma_test = dma_map_single(dev->dev->dev, ring->txhdr_cache,
+ sizeof(struct b43legacy_txhdr_fw3),
+ DMA_TO_DEVICE);
- if (dma_mapping_error(dma_test)) {
+ if (b43legacy_dma_mapping_error(ring, dma_test,
+ sizeof(struct b43legacy_txhdr_fw3))) {
/* ugh realloc */
kfree(ring->txhdr_cache);
ring->txhdr_cache = kcalloc(nr_slots,
@@ -874,7 +905,8 @@
sizeof(struct b43legacy_txhdr_fw3),
DMA_TO_DEVICE);
- if (dma_mapping_error(dma_test))
+ if (b43legacy_dma_mapping_error(ring, dma_test,
+ sizeof(struct b43legacy_txhdr_fw3)))
goto err_kfree_txhdr_cache;
}
@@ -885,11 +917,9 @@
ring->dev = dev;
ring->nr_slots = nr_slots;
- ring->mmio_base = b43legacy_dmacontroller_base(dma64,
- controller_index);
+ ring->mmio_base = b43legacy_dmacontroller_base(type, controller_index);
ring->index = controller_index;
- ring->dma64 = !!dma64;
- if (dma64)
+ if (type == B43legacy_DMA_64BIT)
ring->ops = &dma64_ops;
else
ring->ops = &dma32_ops;
@@ -939,10 +969,10 @@
if (!ring)
return;
- b43legacydbg(ring->dev->wl, "DMA-%s 0x%04X (%s) max used slots:"
- " %d/%d\n", (ring->dma64) ? "64" : "32", ring->mmio_base,
- (ring->tx) ? "TX" : "RX",
- ring->max_used_slots, ring->nr_slots);
+ b43legacydbg(ring->dev->wl, "DMA-%u 0x%04X (%s) max used slots:"
+ " %d/%d\n", (unsigned int)(ring->type), ring->mmio_base,
+ (ring->tx) ? "TX" : "RX", ring->max_used_slots,
+ ring->nr_slots);
/* Device IRQs are disabled prior entering this function,
* so no need to take care of concurrency with rx handler stuff.
*/
@@ -988,11 +1018,22 @@
struct b43legacy_dmaring *ring;
int err;
u64 dmamask;
- int dma64 = 0;
+ enum b43legacy_dmatype type;
dmamask = supported_dma_mask(dev);
- if (dmamask == DMA_64BIT_MASK)
- dma64 = 1;
+ switch (dmamask) {
+ default:
+ B43legacy_WARN_ON(1);
+ case DMA_30BIT_MASK:
+ type = B43legacy_DMA_30BIT;
+ break;
+ case DMA_32BIT_MASK:
+ type = B43legacy_DMA_32BIT;
+ break;
+ case DMA_64BIT_MASK:
+ type = B43legacy_DMA_64BIT;
+ break;
+ }
err = ssb_dma_set_mask(dev->dev, dmamask);
if (err) {
@@ -1010,52 +1051,50 @@
err = -ENOMEM;
/* setup TX DMA channels. */
- ring = b43legacy_setup_dmaring(dev, 0, 1, dma64);
+ ring = b43legacy_setup_dmaring(dev, 0, 1, type);
if (!ring)
goto out;
dma->tx_ring0 = ring;
- ring = b43legacy_setup_dmaring(dev, 1, 1, dma64);
+ ring = b43legacy_setup_dmaring(dev, 1, 1, type);
if (!ring)
goto err_destroy_tx0;
dma->tx_ring1 = ring;
- ring = b43legacy_setup_dmaring(dev, 2, 1, dma64);
+ ring = b43legacy_setup_dmaring(dev, 2, 1, type);
if (!ring)
goto err_destroy_tx1;
dma->tx_ring2 = ring;
- ring = b43legacy_setup_dmaring(dev, 3, 1, dma64);
+ ring = b43legacy_setup_dmaring(dev, 3, 1, type);
if (!ring)
goto err_destroy_tx2;
dma->tx_ring3 = ring;
- ring = b43legacy_setup_dmaring(dev, 4, 1, dma64);
+ ring = b43legacy_setup_dmaring(dev, 4, 1, type);
if (!ring)
goto err_destroy_tx3;
dma->tx_ring4 = ring;
- ring = b43legacy_setup_dmaring(dev, 5, 1, dma64);
+ ring = b43legacy_setup_dmaring(dev, 5, 1, type);
if (!ring)
goto err_destroy_tx4;
dma->tx_ring5 = ring;
/* setup RX DMA channels. */
- ring = b43legacy_setup_dmaring(dev, 0, 0, dma64);
+ ring = b43legacy_setup_dmaring(dev, 0, 0, type);
if (!ring)
goto err_destroy_tx5;
dma->rx_ring0 = ring;
if (dev->dev->id.revision < 5) {
- ring = b43legacy_setup_dmaring(dev, 3, 0, dma64);
+ ring = b43legacy_setup_dmaring(dev, 3, 0, type);
if (!ring)
goto err_destroy_rx0;
dma->rx_ring3 = ring;
}
- b43legacydbg(dev->wl, "%d-bit DMA initialized\n",
- (dmamask == DMA_64BIT_MASK) ? 64 :
- (dmamask == DMA_32BIT_MASK) ? 32 : 30);
+ b43legacydbg(dev->wl, "%u-bit DMA initialized\n", (unsigned int)type);
err = 0;
out:
return err;
@@ -1194,9 +1233,13 @@
}
meta_hdr->dmaaddr = map_descbuffer(ring, (unsigned char *)header,
- sizeof(struct b43legacy_txhdr_fw3), 1);
- if (dma_mapping_error(meta_hdr->dmaaddr))
+ sizeof(struct b43legacy_txhdr_fw3), 1);
+ if (b43legacy_dma_mapping_error(ring, meta_hdr->dmaaddr,
+ sizeof(struct b43legacy_txhdr_fw3))) {
+ ring->current_slot = old_top_slot;
+ ring->used_slots = old_used_slots;
return -EIO;
+ }
ops->fill_descriptor(ring, desc, meta_hdr->dmaaddr,
sizeof(struct b43legacy_txhdr_fw3), 1, 0, 0);
@@ -1211,7 +1254,7 @@
meta->dmaaddr = map_descbuffer(ring, skb->data, skb->len, 1);
/* create a bounce buffer in zone_dma on mapping failure. */
- if (dma_mapping_error(meta->dmaaddr)) {
+ if (b43legacy_dma_mapping_error(ring, meta->dmaaddr, skb->len)) {
bounce_skb = __dev_alloc_skb(skb->len, GFP_ATOMIC | GFP_DMA);
if (!bounce_skb) {
ring->current_slot = old_top_slot;
@@ -1225,7 +1268,7 @@
skb = bounce_skb;
meta->skb = skb;
meta->dmaaddr = map_descbuffer(ring, skb->data, skb->len, 1);
- if (dma_mapping_error(meta->dmaaddr)) {
+ if (b43legacy_dma_mapping_error(ring, meta->dmaaddr, skb->len)) {
ring->current_slot = old_top_slot;
ring->used_slots = old_used_slots;
err = -EIO;
diff --git a/drivers/net/wireless/b43legacy/dma.h b/drivers/net/wireless/b43legacy/dma.h
index 26f6ab0..2dd488c 100644
--- a/drivers/net/wireless/b43legacy/dma.h
+++ b/drivers/net/wireless/b43legacy/dma.h
@@ -218,6 +218,12 @@
void (*set_current_rxslot)(struct b43legacy_dmaring *ring, int slot);
};
+enum b43legacy_dmatype {
+ B43legacy_DMA_30BIT = 30,
+ B43legacy_DMA_32BIT = 32,
+ B43legacy_DMA_64BIT = 64,
+};
+
struct b43legacy_dmaring {
/* Lowlevel DMA ops. */
const struct b43legacy_dma_ops *ops;
@@ -250,8 +256,8 @@
int index;
/* Boolean. Is this a TX ring? */
bool tx;
- /* Boolean. 64bit DMA if true, 32bit DMA otherwise. */
- bool dma64;
+ /* The type of DMA engine used. */
+ enum b43legacy_dmatype type;
/* Boolean. Is this ring stopped at ieee80211 level? */
bool stopped;
/* Lock, only used for TX. */
@@ -284,15 +290,6 @@
int b43legacy_dma_init(struct b43legacy_wldev *dev);
void b43legacy_dma_free(struct b43legacy_wldev *dev);
-int b43legacy_dmacontroller_rx_reset(struct b43legacy_wldev *dev,
- u16 dmacontroller_mmio_base,
- int dma64);
-int b43legacy_dmacontroller_tx_reset(struct b43legacy_wldev *dev,
- u16 dmacontroller_mmio_base,
- int dma64);
-
-u16 b43legacy_dmacontroller_base(int dma64bit, int dmacontroller_idx);
-
void b43legacy_dma_tx_suspend(struct b43legacy_wldev *dev);
void b43legacy_dma_tx_resume(struct b43legacy_wldev *dev);
@@ -320,20 +317,6 @@
{
}
static inline
-int b43legacy_dmacontroller_rx_reset(struct b43legacy_wldev *dev,
- u16 dmacontroller_mmio_base,
- int dma64)
-{
- return 0;
-}
-static inline
-int b43legacy_dmacontroller_tx_reset(struct b43legacy_wldev *dev,
- u16 dmacontroller_mmio_base,
- int dma64)
-{
- return 0;
-}
-static inline
void b43legacy_dma_get_tx_stats(struct b43legacy_wldev *dev,
struct ieee80211_tx_queue_stats *stats)
{
diff --git a/drivers/net/wireless/b43legacy/main.c b/drivers/net/wireless/b43legacy/main.c
index 53f7f2e..c39de42 100644
--- a/drivers/net/wireless/b43legacy/main.c
+++ b/drivers/net/wireless/b43legacy/main.c
@@ -3,7 +3,7 @@
* Broadcom B43legacy wireless driver
*
* Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>
- * Copyright (c) 2005-2007 Stefano Brivio <stefano.brivio@polimi.it>
+ * Copyright (c) 2005-2008 Stefano Brivio <stefano.brivio@polimi.it>
* Copyright (c) 2005, 2006 Michael Buesch <mb@bu3sch.de>
* Copyright (c) 2005 Danny van Dyk <kugelfang@gentoo.org>
* Copyright (c) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch>
@@ -60,6 +60,8 @@
MODULE_AUTHOR("Michael Buesch");
MODULE_LICENSE("GPL");
+MODULE_FIRMWARE(B43legacy_SUPPORTED_FIRMWARE_ID);
+
#if defined(CONFIG_B43LEGACY_DMA) && defined(CONFIG_B43LEGACY_PIO)
static int modparam_pio;
module_param_named(pio, modparam_pio, int, 0444);
@@ -1640,10 +1642,11 @@
err = -EOPNOTSUPP;
goto error;
}
- b43legacydbg(dev->wl, "Loading firmware version 0x%X, patch level %u "
- "(20%.2i-%.2i-%.2i %.2i:%.2i:%.2i)\n", fwrev, fwpatch,
- (fwdate >> 12) & 0xF, (fwdate >> 8) & 0xF, fwdate & 0xFF,
- (fwtime >> 11) & 0x1F, (fwtime >> 5) & 0x3F, fwtime & 0x1F);
+ b43legacyinfo(dev->wl, "Loading firmware version 0x%X, patch level %u "
+ "(20%.2i-%.2i-%.2i %.2i:%.2i:%.2i)\n", fwrev, fwpatch,
+ (fwdate >> 12) & 0xF, (fwdate >> 8) & 0xF, fwdate & 0xFF,
+ (fwtime >> 11) & 0x1F, (fwtime >> 5) & 0x3F,
+ fwtime & 0x1F);
dev->fw.rev = fwrev;
dev->fw.patch = fwpatch;
@@ -3806,6 +3809,32 @@
.resume = b43legacy_resume,
};
+static void b43legacy_print_driverinfo(void)
+{
+ const char *feat_pci = "", *feat_leds = "", *feat_rfkill = "",
+ *feat_pio = "", *feat_dma = "";
+
+#ifdef CONFIG_B43LEGACY_PCI_AUTOSELECT
+ feat_pci = "P";
+#endif
+#ifdef CONFIG_B43LEGACY_LEDS
+ feat_leds = "L";
+#endif
+#ifdef CONFIG_B43LEGACY_RFKILL
+ feat_rfkill = "R";
+#endif
+#ifdef CONFIG_B43LEGACY_PIO
+ feat_pio = "I";
+#endif
+#ifdef CONFIG_B43LEGACY_DMA
+ feat_dma = "D";
+#endif
+ printk(KERN_INFO "Broadcom 43xx driver loaded "
+ "[ Features: %s%s%s%s%s, Firmware-ID: "
+ B43legacy_SUPPORTED_FIRMWARE_ID " ]\n",
+ feat_pci, feat_leds, feat_rfkill, feat_pio, feat_dma);
+}
+
static int __init b43legacy_init(void)
{
int err;
@@ -3816,6 +3845,8 @@
if (err)
goto err_dfs_exit;
+ b43legacy_print_driverinfo();
+
return err;
err_dfs_exit:
diff --git a/drivers/net/wireless/ipw2200.c b/drivers/net/wireless/ipw2200.c
index 3e6ad7b..a56d9fc 100644
--- a/drivers/net/wireless/ipw2200.c
+++ b/drivers/net/wireless/ipw2200.c
@@ -3365,7 +3365,6 @@
/* Set us so that we have processed and used all buffers, but have
* not restocked the Rx queue with fresh buffers */
rxq->read = rxq->write = 0;
- rxq->processed = RX_QUEUE_SIZE - 1;
rxq->free_count = 0;
spin_unlock_irqrestore(&rxq->lock, flags);
}
@@ -3607,7 +3606,22 @@
* Driver allocates buffers of this size for Rx
*/
-static inline int ipw_queue_space(const struct clx2_queue *q)
+/**
+ * ipw_rx_queue_space - Return number of free slots available in queue.
+ */
+static int ipw_rx_queue_space(const struct ipw_rx_queue *q)
+{
+ int s = q->read - q->write;
+ if (s <= 0)
+ s += RX_QUEUE_SIZE;
+ /* keep some buffer to not confuse full and empty queue */
+ s -= 2;
+ if (s < 0)
+ s = 0;
+ return s;
+}
+
+static inline int ipw_tx_queue_space(const struct clx2_queue *q)
{
int s = q->last_used - q->first_empty;
if (s <= 0)
@@ -4947,7 +4961,7 @@
priv->tx_packets++;
}
done:
- if ((ipw_queue_space(q) > q->low_mark) &&
+ if ((ipw_tx_queue_space(q) > q->low_mark) &&
(qindex >= 0) &&
(priv->status & STATUS_ASSOCIATED) && netif_running(priv->net_dev))
netif_wake_queue(priv->net_dev);
@@ -4965,7 +4979,7 @@
struct clx2_queue *q = &txq->q;
struct tfd_frame *tfd;
- if (ipw_queue_space(q) < (sync ? 1 : 2)) {
+ if (ipw_tx_queue_space(q) < (sync ? 1 : 2)) {
IPW_ERROR("No space for Tx\n");
return -EBUSY;
}
@@ -5070,7 +5084,7 @@
spin_lock_irqsave(&rxq->lock, flags);
write = rxq->write;
- while ((rxq->write != rxq->processed) && (rxq->free_count)) {
+ while ((ipw_rx_queue_space(rxq) > 0) && (rxq->free_count)) {
element = rxq->rx_free.next;
rxb = list_entry(element, struct ipw_rx_mem_buffer, list);
list_del(element);
@@ -5187,7 +5201,6 @@
/* Set us so that we have processed and used all buffers, but have
* not restocked the Rx queue with fresh buffers */
rxq->read = rxq->write = 0;
- rxq->processed = RX_QUEUE_SIZE - 1;
rxq->free_count = 0;
return rxq;
@@ -8223,13 +8236,17 @@
struct ieee80211_hdr_4addr *header;
u32 r, w, i;
u8 network_packet;
+ u8 fill_rx = 0;
DECLARE_MAC_BUF(mac);
DECLARE_MAC_BUF(mac2);
DECLARE_MAC_BUF(mac3);
r = ipw_read32(priv, IPW_RX_READ_INDEX);
w = ipw_read32(priv, IPW_RX_WRITE_INDEX);
- i = (priv->rxq->processed + 1) % RX_QUEUE_SIZE;
+ i = priv->rxq->read;
+
+ if (ipw_rx_queue_space (priv->rxq) > (RX_QUEUE_SIZE / 2))
+ fill_rx = 1;
while (i != r) {
rxb = priv->rxq->queue[i];
@@ -8404,11 +8421,17 @@
list_add_tail(&rxb->list, &priv->rxq->rx_used);
i = (i + 1) % RX_QUEUE_SIZE;
+
+ /* If there are a lot of unsued frames, restock the Rx queue
+ * so the ucode won't assert */
+ if (fill_rx) {
+ priv->rxq->read = i;
+ ipw_rx_queue_replenish(priv);
+ }
}
/* Backtrack one entry */
- priv->rxq->processed = (i ? i : RX_QUEUE_SIZE) - 1;
-
+ priv->rxq->read = i;
ipw_rx_queue_restock(priv);
}
@@ -10336,7 +10359,7 @@
q->first_empty = ipw_queue_inc_wrap(q->first_empty, q->n_bd);
ipw_write32(priv, q->reg_w, q->first_empty);
- if (ipw_queue_space(q) < q->high_mark)
+ if (ipw_tx_queue_space(q) < q->high_mark)
netif_stop_queue(priv->net_dev);
return NETDEV_TX_OK;
@@ -10357,7 +10380,7 @@
struct clx2_tx_queue *txq = &priv->txq[0];
#endif /* CONFIG_IPW2200_QOS */
- if (ipw_queue_space(&txq->q) < txq->q.high_mark)
+ if (ipw_tx_queue_space(&txq->q) < txq->q.high_mark)
return 1;
return 0;
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index 5ee1ad6..40b71bc 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -687,6 +687,12 @@
BUG_ON((fix_size > TFD_MAX_PAYLOAD_SIZE) &&
!(cmd->meta.flags & CMD_SIZE_HUGE));
+
+ if (iwl3945_is_rfkill(priv)) {
+ IWL_DEBUG_INFO("Not sending command - RF KILL");
+ return -EIO;
+ }
+
if (iwl3945_queue_space(q) < ((cmd->meta.flags & CMD_ASYNC) ? 2 : 1)) {
IWL_ERROR("No space for Tx\n");
return -ENOSPC;
@@ -1580,7 +1586,7 @@
*/
int iwl3945_eeprom_init(struct iwl3945_priv *priv)
{
- __le16 *e = (__le16 *)&priv->eeprom;
+ u16 *e = (u16 *)&priv->eeprom;
u32 gp = iwl3945_read32(priv, CSR_EEPROM_GP);
u32 r;
int sz = sizeof(priv->eeprom);
@@ -1623,7 +1629,7 @@
IWL_ERROR("Time out reading EEPROM[%d]", addr);
return -ETIMEDOUT;
}
- e[addr / 2] = cpu_to_le16(r >> 16);
+ e[addr / 2] = le16_to_cpu((__force __le16)(r >> 16));
}
return 0;
@@ -2806,7 +2812,8 @@
#endif
/* drop all data frame if we are not associated */
- if ((!iwl3945_is_associated(priv) || !priv->assoc_id) &&
+ if ((!iwl3945_is_associated(priv) ||
+ ((priv->iw_mode == IEEE80211_IF_TYPE_STA) && !priv->assoc_id)) &&
((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA)) {
IWL_DEBUG_DROP("Dropping - !iwl3945_is_associated\n");
goto drop_unlock;
@@ -4281,7 +4288,7 @@
int reclaim;
unsigned long flags;
u8 fill_rx = 0;
- u32 count = 0;
+ u32 count = 8;
/* uCode's read index (stored in shared DRAM) indicates the last Rx
* buffer that the driver may process (last buffer filled by ucode). */
@@ -6256,6 +6263,8 @@
STATUS_RF_KILL_HW |
test_bit(STATUS_RF_KILL_SW, &priv->status) <<
STATUS_RF_KILL_SW |
+ test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
+ STATUS_GEO_CONFIGURED |
test_bit(STATUS_IN_SUSPEND, &priv->status) <<
STATUS_IN_SUSPEND;
goto exit;
@@ -6267,6 +6276,8 @@
STATUS_RF_KILL_HW |
test_bit(STATUS_RF_KILL_SW, &priv->status) <<
STATUS_RF_KILL_SW |
+ test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
+ STATUS_GEO_CONFIGURED |
test_bit(STATUS_IN_SUSPEND, &priv->status) <<
STATUS_IN_SUSPEND |
test_bit(STATUS_FW_ERROR, &priv->status) <<
diff --git a/drivers/net/wireless/iwlwifi/iwl4965-base.c b/drivers/net/wireless/iwlwifi/iwl4965-base.c
index f423241..a23d479 100644
--- a/drivers/net/wireless/iwlwifi/iwl4965-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl4965-base.c
@@ -692,6 +692,11 @@
BUG_ON((fix_size > TFD_MAX_PAYLOAD_SIZE) &&
!(cmd->meta.flags & CMD_SIZE_HUGE));
+ if (iwl4965_is_rfkill(priv)) {
+ IWL_DEBUG_INFO("Not sending command - RF KILL");
+ return -EIO;
+ }
+
if (iwl4965_queue_space(q) < ((cmd->meta.flags & CMD_ASYNC) ? 2 : 1)) {
IWL_ERROR("No space for Tx\n");
return -ENOSPC;
@@ -1654,7 +1659,7 @@
*/
int iwl4965_eeprom_init(struct iwl4965_priv *priv)
{
- __le16 *e = (__le16 *)&priv->eeprom;
+ u16 *e = (u16 *)&priv->eeprom;
u32 gp = iwl4965_read32(priv, CSR_EEPROM_GP);
u32 r;
int sz = sizeof(priv->eeprom);
@@ -1698,7 +1703,7 @@
rc = -ETIMEDOUT;
goto done;
}
- e[addr / 2] = cpu_to_le16(r >> 16);
+ e[addr / 2] = le16_to_cpu((__force __le16)(r >> 16));
}
rc = 0;
@@ -2935,7 +2940,7 @@
/* drop all data frame if we are not associated */
if (((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) &&
(!iwl4965_is_associated(priv) ||
- !priv->assoc_id ||
+ ((priv->iw_mode == IEEE80211_IF_TYPE_STA) && !priv->assoc_id) ||
!priv->assoc_station_added)) {
IWL_DEBUG_DROP("Dropping - !iwl4965_is_associated\n");
goto drop_unlock;
@@ -4664,7 +4669,7 @@
int reclaim;
unsigned long flags;
u8 fill_rx = 0;
- u32 count = 0;
+ u32 count = 8;
/* uCode's read index (stored in shared DRAM) indicates the last Rx
* buffer that the driver may process (last buffer filled by ucode). */
@@ -6680,6 +6685,8 @@
STATUS_RF_KILL_HW |
test_bit(STATUS_RF_KILL_SW, &priv->status) <<
STATUS_RF_KILL_SW |
+ test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
+ STATUS_GEO_CONFIGURED |
test_bit(STATUS_IN_SUSPEND, &priv->status) <<
STATUS_IN_SUSPEND;
goto exit;
@@ -6691,6 +6698,8 @@
STATUS_RF_KILL_HW |
test_bit(STATUS_RF_KILL_SW, &priv->status) <<
STATUS_RF_KILL_SW |
+ test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
+ STATUS_GEO_CONFIGURED |
test_bit(STATUS_IN_SUSPEND, &priv->status) <<
STATUS_IN_SUSPEND |
test_bit(STATUS_FW_ERROR, &priv->status) <<
diff --git a/drivers/net/wireless/rndis_wlan.c b/drivers/net/wireless/rndis_wlan.c
index d3ecf89..8ce2ddf 100644
--- a/drivers/net/wireless/rndis_wlan.c
+++ b/drivers/net/wireless/rndis_wlan.c
@@ -2300,7 +2300,7 @@
struct usbnet *usbdev = priv->usbdev;
struct iw_statistics iwstats;
__le32 rssi, tmp;
- int len, ret, bitrate, j;
+ int len, ret, j;
unsigned long flags;
int update_jiffies = STATS_UPDATE_JIFFIES;
void *buf;
@@ -2352,14 +2352,10 @@
if (ret == 0)
iwstats.discard.misc += le32_to_cpu(tmp);
- /* Workaround transfer stalls on poor quality links. */
- len = sizeof(tmp);
- ret = rndis_query_oid(usbdev, OID_GEN_LINK_SPEED, &tmp, &len);
- if (ret == 0) {
- bitrate = le32_to_cpu(tmp) * 100;
- if (bitrate > 11000000)
- goto end;
-
+ /* Workaround transfer stalls on poor quality links.
+ * TODO: find right way to fix these stalls (as stalls do not happen
+ * with ndiswrapper/windows driver). */
+ if (iwstats.qual.qual <= 25) {
/* Decrease stats worker interval to catch stalls.
* faster. Faster than 400-500ms causes packet loss,
* Slower doesn't catch stalls fast enough.
diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c
index 86ded40..4ca9730 100644
--- a/drivers/net/wireless/rt2x00/rt2500usb.c
+++ b/drivers/net/wireless/rt2x00/rt2500usb.c
@@ -1839,11 +1839,11 @@
/* Hercules */
{ USB_DEVICE(0x06f8, 0xe000), USB_DEVICE_DATA(&rt2500usb_ops) },
/* Melco */
+ { USB_DEVICE(0x0411, 0x005e), USB_DEVICE_DATA(&rt2500usb_ops) },
{ USB_DEVICE(0x0411, 0x0066), USB_DEVICE_DATA(&rt2500usb_ops) },
{ USB_DEVICE(0x0411, 0x0067), USB_DEVICE_DATA(&rt2500usb_ops) },
{ USB_DEVICE(0x0411, 0x008b), USB_DEVICE_DATA(&rt2500usb_ops) },
{ USB_DEVICE(0x0411, 0x0097), USB_DEVICE_DATA(&rt2500usb_ops) },
-
/* MSI */
{ USB_DEVICE(0x0db0, 0x6861), USB_DEVICE_DATA(&rt2500usb_ops) },
{ USB_DEVICE(0x0db0, 0x6865), USB_DEVICE_DATA(&rt2500usb_ops) },
diff --git a/drivers/net/wireless/wavelan.h b/drivers/net/wireless/wavelan.h
index 27172cd..9ab3605 100644
--- a/drivers/net/wireless/wavelan.h
+++ b/drivers/net/wireless/wavelan.h
@@ -85,7 +85,7 @@
#define HASR_MMC_INTR 0x0002 /* Interrupt request from MMC */
#define HASR_MMC_BUSY 0x0004 /* MMC busy indication */
#define HASR_PSA_BUSY 0x0008 /* LAN parameter storage area busy */
-};
+} __attribute__ ((packed));
typedef struct ha_t ha_t;
struct ha_t
@@ -292,7 +292,7 @@
#define MMW_EXT_ANT_INTERNAL 0x00 /* Internal antenna */
#define MMW_EXT_ANT_EXTERNAL 0x03 /* External antenna */
#define MMW_EXT_ANT_IQ_TEST 0x1C /* IQ test pattern (set to 0) */
-};
+} __attribute__ ((packed));
#define MMW_SIZE 37
@@ -347,7 +347,7 @@
unsigned char mmr_unused4[1]; /* unused */
unsigned char mmr_fee_data_l; /* Read data from EEPROM (low) */
unsigned char mmr_fee_data_h; /* Read data from EEPROM (high) */
-};
+} __attribute__ ((packed));
#define MMR_SIZE 36
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index d984e0f..ccf46c9 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -1149,12 +1149,14 @@
{
struct list_head *l, *n;
struct dasd_ccw_req *cqr;
+ struct dasd_block *block;
list_for_each_safe(l, n, final_queue) {
cqr = list_entry(l, struct dasd_ccw_req, devlist);
list_del_init(&cqr->devlist);
- if (cqr->block)
- spin_lock_bh(&cqr->block->queue_lock);
+ block = cqr->block;
+ if (block)
+ spin_lock_bh(&block->queue_lock);
switch (cqr->status) {
case DASD_CQR_SUCCESS:
cqr->status = DASD_CQR_DONE;
@@ -1172,15 +1174,13 @@
cqr, cqr->status);
BUG();
}
- if (cqr->block)
- spin_unlock_bh(&cqr->block->queue_lock);
if (cqr->callback != NULL)
(cqr->callback)(cqr, cqr->callback_data);
+ if (block)
+ spin_unlock_bh(&block->queue_lock);
}
}
-
-
/*
* Take a look at the first request on the ccw queue and check
* if it reached its expire time. If so, terminate the IO.
diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c
index 3faf053..e6c94db 100644
--- a/drivers/s390/block/dcssblk.c
+++ b/drivers/s390/block/dcssblk.c
@@ -666,7 +666,7 @@
page_addr = (unsigned long)
page_address(bvec->bv_page) + bvec->bv_offset;
source_addr = dev_info->start + (index<<12) + bytes_done;
- if (unlikely(page_addr & 4095) != 0 || (bvec->bv_len & 4095) != 0)
+ if (unlikely((page_addr & 4095) != 0) || (bvec->bv_len & 4095) != 0)
// More paranoia.
goto fail;
if (bio_data_dir(bio) == READ) {
diff --git a/drivers/s390/char/sclp.c b/drivers/s390/char/sclp.c
index 25629b9..2c7a1ee 100644
--- a/drivers/s390/char/sclp.c
+++ b/drivers/s390/char/sclp.c
@@ -29,10 +29,10 @@
/* Lock to protect internal data consistency. */
static DEFINE_SPINLOCK(sclp_lock);
-/* Mask of events that we can receive from the sclp interface. */
+/* Mask of events that we can send to the sclp interface. */
static sccb_mask_t sclp_receive_mask;
-/* Mask of events that we can send to the sclp interface. */
+/* Mask of events that we can receive from the sclp interface. */
static sccb_mask_t sclp_send_mask;
/* List of registered event listeners and senders. */
@@ -380,7 +380,7 @@
}
sclp_running_state = sclp_running_state_idle;
}
- if (evbuf_pending && sclp_receive_mask != 0 &&
+ if (evbuf_pending &&
sclp_activation_state == sclp_activation_state_active)
__sclp_queue_read_req();
spin_unlock(&sclp_lock);
@@ -459,8 +459,8 @@
reg = NULL;
list_for_each(l, &sclp_reg_list) {
reg = list_entry(l, struct sclp_register, list);
- receive_mask = reg->receive_mask & sclp_receive_mask;
- send_mask = reg->send_mask & sclp_send_mask;
+ receive_mask = reg->send_mask & sclp_receive_mask;
+ send_mask = reg->receive_mask & sclp_send_mask;
if (reg->sclp_receive_mask != receive_mask ||
reg->sclp_send_mask != send_mask) {
reg->sclp_receive_mask = receive_mask;
@@ -615,8 +615,8 @@
u16 mask_length;
sccb_mask_t receive_mask;
sccb_mask_t send_mask;
- sccb_mask_t sclp_send_mask;
sccb_mask_t sclp_receive_mask;
+ sccb_mask_t sclp_send_mask;
} __attribute__((packed));
/* Prepare init mask request. Called while sclp_lock is locked. */
diff --git a/drivers/s390/char/sclp.h b/drivers/s390/char/sclp.h
index aa8186d..bac80e8 100644
--- a/drivers/s390/char/sclp.h
+++ b/drivers/s390/char/sclp.h
@@ -122,11 +122,13 @@
/* of some routines it wants to be called from the low level driver */
struct sclp_register {
struct list_head list;
- /* event masks this user is registered for */
+ /* User wants to receive: */
sccb_mask_t receive_mask;
+ /* User wants to send: */
sccb_mask_t send_mask;
- /* actually present events */
+ /* H/W can receive: */
sccb_mask_t sclp_receive_mask;
+ /* H/W can send: */
sccb_mask_t sclp_send_mask;
/* called if event type availability changes */
void (*state_change_fn)(struct sclp_register *);
diff --git a/drivers/s390/char/sclp_config.c b/drivers/s390/char/sclp_config.c
index 9dc77f1..b8f35bc 100644
--- a/drivers/s390/char/sclp_config.c
+++ b/drivers/s390/char/sclp_config.c
@@ -64,7 +64,7 @@
return rc;
}
- if (!(sclp_conf_register.sclp_receive_mask & EVTYP_CONFMGMDATA_MASK)) {
+ if (!(sclp_conf_register.sclp_send_mask & EVTYP_CONFMGMDATA_MASK)) {
printk(KERN_WARNING TAG "no configuration management.\n");
sclp_unregister(&sclp_conf_register);
rc = -ENOSYS;
diff --git a/drivers/s390/char/sclp_cpi_sys.c b/drivers/s390/char/sclp_cpi_sys.c
index 4161703..9f37456 100644
--- a/drivers/s390/char/sclp_cpi_sys.c
+++ b/drivers/s390/char/sclp_cpi_sys.c
@@ -129,7 +129,7 @@
"to hardware console.\n");
goto out;
}
- if (!(sclp_cpi_event.sclp_send_mask & EVTYP_CTLPROGIDENT_MASK)) {
+ if (!(sclp_cpi_event.sclp_receive_mask & EVTYP_CTLPROGIDENT_MASK)) {
printk(KERN_WARNING "cpi: no control program "
"identification support\n");
rc = -EOPNOTSUPP;
diff --git a/drivers/s390/char/sclp_rw.c b/drivers/s390/char/sclp_rw.c
index ad7195d..da09781 100644
--- a/drivers/s390/char/sclp_rw.c
+++ b/drivers/s390/char/sclp_rw.c
@@ -452,10 +452,10 @@
return -EIO;
sccb = buffer->sccb;
- if (sclp_rw_event.sclp_send_mask & EVTYP_MSG_MASK)
+ if (sclp_rw_event.sclp_receive_mask & EVTYP_MSG_MASK)
/* Use normal write message */
sccb->msg_buf.header.type = EVTYP_MSG;
- else if (sclp_rw_event.sclp_send_mask & EVTYP_PMSGCMD_MASK)
+ else if (sclp_rw_event.sclp_receive_mask & EVTYP_PMSGCMD_MASK)
/* Use write priority message */
sccb->msg_buf.header.type = EVTYP_PMSGCMD;
else
diff --git a/drivers/s390/char/sclp_vt220.c b/drivers/s390/char/sclp_vt220.c
index f47f4a7..92f5272 100644
--- a/drivers/s390/char/sclp_vt220.c
+++ b/drivers/s390/char/sclp_vt220.c
@@ -202,7 +202,7 @@
static int
__sclp_vt220_emit(struct sclp_vt220_request *request)
{
- if (!(sclp_vt220_register.sclp_send_mask & EVTYP_VT220MSG_MASK)) {
+ if (!(sclp_vt220_register.sclp_receive_mask & EVTYP_VT220MSG_MASK)) {
request->sclp_req.status = SCLP_REQ_FAILED;
return -EIO;
}
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index d35dc3f..fec004f 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -32,7 +32,7 @@
#include "io_sch.h"
static struct timer_list recovery_timer;
-static spinlock_t recovery_lock;
+static DEFINE_SPINLOCK(recovery_lock);
static int recovery_phase;
static const unsigned long recovery_delay[] = { 3, 30, 300 };
@@ -1535,7 +1535,7 @@
return 0;
}
-static void recovery_func(unsigned long data)
+static void recovery_work_func(struct work_struct *unused)
{
int redo = 0;
@@ -1553,6 +1553,17 @@
CIO_MSG_EVENT(2, "recovery: end\n");
}
+static DECLARE_WORK(recovery_work, recovery_work_func);
+
+static void recovery_func(unsigned long data)
+{
+ /*
+ * We can't do our recovery in softirq context and it's not
+ * performance critical, so we schedule it.
+ */
+ schedule_work(&recovery_work);
+}
+
void ccw_device_schedule_recovery(void)
{
unsigned long flags;
diff --git a/drivers/s390/cio/qdio.c b/drivers/s390/cio/qdio.c
index 097fc09..2b5bfb7 100644
--- a/drivers/s390/cio/qdio.c
+++ b/drivers/s390/cio/qdio.c
@@ -32,7 +32,7 @@
#include <linux/module.h>
#include <linux/init.h>
-
+#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/kernel.h>
#include <linux/proc_fs.h>
@@ -1215,9 +1215,6 @@
if (!no_used)
return 1;
- if (!q->siga_sync && !irq->is_qebsm)
- /* we'll check for more primed buffers in qeth_stop_polling */
- return 0;
if (irq->is_qebsm) {
count = 1;
start_buf = q->first_to_check;
@@ -3332,13 +3329,7 @@
}
}
- wait_event_interruptible_timeout(cdev->private->wait_q,
- ((irq_ptr->state ==
- QDIO_IRQ_STATE_STOPPED) ||
- (irq_ptr->state ==
- QDIO_IRQ_STATE_ERR)),
- QDIO_ACTIVATE_TIMEOUT);
-
+ msleep(QDIO_ACTIVATE_TIMEOUT);
switch (irq_ptr->state) {
case QDIO_IRQ_STATE_STOPPED:
case QDIO_IRQ_STATE_ERR:
diff --git a/drivers/s390/cio/qdio.h b/drivers/s390/cio/qdio.h
index 37870e4..da8a272 100644
--- a/drivers/s390/cio/qdio.h
+++ b/drivers/s390/cio/qdio.h
@@ -57,10 +57,10 @@
of the queue to 0 */
#define QDIO_ESTABLISH_TIMEOUT (1*HZ)
-#define QDIO_ACTIVATE_TIMEOUT (5*HZ)
#define QDIO_CLEANUP_CLEAR_TIMEOUT (20*HZ)
#define QDIO_CLEANUP_HALT_TIMEOUT (10*HZ)
#define QDIO_FORCE_CHECK_TIMEOUT (10*HZ)
+#define QDIO_ACTIVATE_TIMEOUT (5) /* 5 ms */
enum qdio_irq_states {
QDIO_IRQ_STATE_INACTIVE,
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index 2074701..c72014a 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -5140,7 +5140,7 @@
struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
struct ipr_ioadl_desc *last_ioadl = NULL;
- int len = qc->nbytes + qc->pad_len;
+ int len = qc->nbytes;
struct scatterlist *sg;
unsigned int si;
@@ -5206,7 +5206,7 @@
ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
- ipr_cmd->dma_use_sg = qc->pad_len ? qc->n_elem + 1 : qc->n_elem;
+ ipr_cmd->dma_use_sg = qc->n_elem;
ipr_build_ata_ioadl(ipr_cmd, qc);
regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c
index 0996f86..7cd05b5 100644
--- a/drivers/scsi/libsas/sas_ata.c
+++ b/drivers/scsi/libsas/sas_ata.c
@@ -178,8 +178,8 @@
task->uldd_task = qc;
if (ata_is_atapi(qc->tf.protocol)) {
memcpy(task->ata_task.atapi_packet, qc->cdb, qc->dev->cdb_len);
- task->total_xfer_len = qc->nbytes + qc->pad_len;
- task->num_scatter = qc->pad_len ? qc->n_elem + 1 : qc->n_elem;
+ task->total_xfer_len = qc->nbytes;
+ task->num_scatter = qc->n_elem;
} else {
for_each_sg(qc->sg, sg, qc->n_elem, si)
xfer += sg->length;
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 135c1d0..ba21d97 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1014,10 +1014,6 @@
}
req->buffer = NULL;
- if (blk_pc_request(req))
- sdb->length = req->data_len;
- else
- sdb->length = req->nr_sectors << 9;
/*
* Next, walk the list, and fill in the addresses and sizes of
@@ -1026,6 +1022,10 @@
count = blk_rq_map_sg(req->q, req, sdb->table.sgl);
BUG_ON(count > sdb->table.nents);
sdb->table.nents = count;
+ if (blk_pc_request(req))
+ sdb->length = req->data_len;
+ else
+ sdb->length = req->nr_sectors << 9;
return BLKPREP_OK;
}
diff --git a/drivers/video/aty/atyfb_base.c b/drivers/video/aty/atyfb_base.c
index d775eb6..62f9c6e 100644
--- a/drivers/video/aty/atyfb_base.c
+++ b/drivers/video/aty/atyfb_base.c
@@ -1913,61 +1913,6 @@
par->mmaped = 1;
return 0;
}
-
-static struct {
- u32 yoffset;
- u8 r[2][256];
- u8 g[2][256];
- u8 b[2][256];
-} atyfb_save;
-
-static void atyfb_save_palette(struct atyfb_par *par, int enter)
-{
- int i, tmp;
-
- for (i = 0; i < 256; i++) {
- tmp = aty_ld_8(DAC_CNTL, par) & 0xfc;
- if (M64_HAS(EXTRA_BRIGHT))
- tmp |= 0x2;
- aty_st_8(DAC_CNTL, tmp, par);
- aty_st_8(DAC_MASK, 0xff, par);
-
- aty_st_8(DAC_R_INDEX, i, par);
- atyfb_save.r[enter][i] = aty_ld_8(DAC_DATA, par);
- atyfb_save.g[enter][i] = aty_ld_8(DAC_DATA, par);
- atyfb_save.b[enter][i] = aty_ld_8(DAC_DATA, par);
- aty_st_8(DAC_W_INDEX, i, par);
- aty_st_8(DAC_DATA, atyfb_save.r[1 - enter][i], par);
- aty_st_8(DAC_DATA, atyfb_save.g[1 - enter][i], par);
- aty_st_8(DAC_DATA, atyfb_save.b[1 - enter][i], par);
- }
-}
-
-static void atyfb_palette(int enter)
-{
- struct atyfb_par *par;
- struct fb_info *info;
- int i;
-
- for (i = 0; i < FB_MAX; i++) {
- info = registered_fb[i];
- if (info && info->fbops == &atyfb_ops) {
- par = (struct atyfb_par *) info->par;
-
- atyfb_save_palette(par, enter);
- if (enter) {
- atyfb_save.yoffset = info->var.yoffset;
- info->var.yoffset = 0;
- set_off_pitch(par, info);
- } else {
- info->var.yoffset = atyfb_save.yoffset;
- set_off_pitch(par, info);
- }
- aty_st_le32(CRTC_OFF_PITCH, par->crtc.off_pitch, par);
- break;
- }
- }
-}
#endif /* __sparc__ */
@@ -2670,10 +2615,6 @@
goto aty_init_exit;
}
-#ifdef __sparc__
- atyfb_save_palette(par, 0);
-#endif
-
#ifdef CONFIG_FB_ATY_CT
if (!noaccel && M64_HAS(INTEGRATED))
aty_init_cursor(info);
@@ -2900,8 +2841,6 @@
#ifdef __sparc__
-extern void (*prom_palette) (int);
-
static int __devinit atyfb_setup_sparc(struct pci_dev *pdev,
struct fb_info *info, unsigned long addr)
{
@@ -3536,9 +3475,6 @@
goto err_release_io;
#ifdef __sparc__
- if (!prom_palette)
- prom_palette = atyfb_palette;
-
/*
* Add /dev/fb mmap values.
*/
diff --git a/drivers/video/cg14.c b/drivers/video/cg14.c
index 41f6dbf..fdc9f43 100644
--- a/drivers/video/cg14.c
+++ b/drivers/video/cg14.c
@@ -16,6 +16,7 @@
#include <linux/init.h>
#include <linux/fb.h>
#include <linux/mm.h>
+#include <linux/uaccess.h>
#include <asm/io.h>
#include <asm/prom.h>
diff --git a/drivers/video/sbuslib.c b/drivers/video/sbuslib.c
index 963a454..4deaac0 100644
--- a/drivers/video/sbuslib.c
+++ b/drivers/video/sbuslib.c
@@ -9,6 +9,7 @@
#include <linux/string.h>
#include <linux/fb.h>
#include <linux/mm.h>
+#include <linux/uaccess.h>
#include <asm/oplib.h>
#include <asm/fbio.h>
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index afcdc69..254d115 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -402,6 +402,18 @@
To compile this driver as a module, choose M here: the
module will be called it8712f_wdt.
+config HP_WATCHDOG
+ tristate "HP Proliant iLO 2 Hardware Watchdog Timer"
+ depends on X86
+ help
+ A software monitoring watchdog and NMI sourcing driver. This driver
+ will detect lockups and provide stack trace. Also, when an NMI
+ occurs this driver will make the necessary BIOS calls to log
+ the cause of the NMI. This is a driver that will only load on a
+ HP ProLiant system with a minimum of iLO2 support.
+ To compile this driver as a module, choose M here: the
+ module will be called hpwdt.
+
config SC1200_WDT
tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
depends on X86
@@ -633,6 +645,19 @@
To compile this driver as a module, choose M here: the
module will be called rm9k_wdt.
+config SIBYTE_WDOG
+ tristate "Sibyte SoC hardware watchdog"
+ depends on CPU_SB1
+ help
+ Watchdog driver for the built in watchdog hardware in Sibyte
+ SoC processors. There are apparently two watchdog timers
+ on such processors; this driver supports only the first one,
+ because currently Linux only supports exporting one watchdog
+ to userspace.
+
+ To compile this driver as a loadable module, choose M here.
+ The module will be called sb_wdog.
+
config AR7_WDT
tristate "TI AR7 Watchdog Timer"
depends on AR7
diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile
index ebc2114..f3fb170 100644
--- a/drivers/watchdog/Makefile
+++ b/drivers/watchdog/Makefile
@@ -67,6 +67,7 @@
obj-$(CONFIG_I6300ESB_WDT) += i6300esb.o
obj-$(CONFIG_ITCO_WDT) += iTCO_wdt.o iTCO_vendor_support.o
obj-$(CONFIG_IT8712F_WDT) += it8712f_wdt.o
+obj-$(CONFIG_HP_WATCHDOG) += hpwdt.o
obj-$(CONFIG_SC1200_WDT) += sc1200wdt.o
obj-$(CONFIG_SCx200_WDT) += scx200_wdt.o
obj-$(CONFIG_PC87413_WDT) += pc87413_wdt.o
@@ -92,6 +93,7 @@
obj-$(CONFIG_INDYDOG) += indydog.o
obj-$(CONFIG_WDT_MTX1) += mtx-1_wdt.o
obj-$(CONFIG_WDT_RM9K_GPI) += rm9k_wdt.o
+obj-$(CONFIG_SIBYTE_WDOG) += sb_wdog.o
obj-$(CONFIG_AR7_WDT) += ar7_wdt.o
obj-$(CONFIG_TXX9_WDT) += txx9wdt.o
diff --git a/drivers/watchdog/bfin_wdt.c b/drivers/watchdog/bfin_wdt.c
index 472be10..1237113 100644
--- a/drivers/watchdog/bfin_wdt.c
+++ b/drivers/watchdog/bfin_wdt.c
@@ -29,6 +29,7 @@
#define stamp(fmt, args...) pr_debug("%s:%i: " fmt "\n", __func__, __LINE__, ## args)
#define stampit() stamp("here i am")
+#define pr_init(fmt, args...) ({ static const __initdata char __fmt[] = fmt; printk(__fmt, ## args); })
#define WATCHDOG_NAME "bfin-wdt"
#define PFX WATCHDOG_NAME ": "
@@ -445,19 +446,19 @@
ret = register_reboot_notifier(&bfin_wdt_notifier);
if (ret) {
- printk(KERN_ERR PFX "cannot register reboot notifier (err=%d)\n", ret);
+ pr_init(KERN_ERR PFX "cannot register reboot notifier (err=%d)\n", ret);
return ret;
}
ret = misc_register(&bfin_wdt_miscdev);
if (ret) {
- printk(KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n",
+ pr_init(KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n",
WATCHDOG_MINOR, ret);
unregister_reboot_notifier(&bfin_wdt_notifier);
return ret;
}
- printk(KERN_INFO PFX "initialized: timeout=%d sec (nowayout=%d)\n",
+ pr_init(KERN_INFO PFX "initialized: timeout=%d sec (nowayout=%d)\n",
timeout, nowayout);
return 0;
diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c
new file mode 100644
index 0000000..a2e174b
--- /dev/null
+++ b/drivers/watchdog/hpwdt.c
@@ -0,0 +1,926 @@
+/*
+ * HP WatchDog Driver
+ * based on
+ *
+ * SoftDog 0.05: A Software Watchdog Device
+ *
+ * (c) Copyright 2007 Hewlett-Packard Development Company, L.P.
+ * Thomas Mingarelli <thomas.mingarelli@hp.com>
+ *
+ * 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/device.h>
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/kernel.h>
+#include <linux/miscdevice.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/kdebug.h>
+#include <linux/moduleparam.h>
+#include <linux/notifier.h>
+#include <linux/pci.h>
+#include <linux/pci_ids.h>
+#include <linux/reboot.h>
+#include <linux/sched.h>
+#include <linux/timer.h>
+#include <linux/types.h>
+#include <linux/uaccess.h>
+#include <linux/watchdog.h>
+#include <linux/dmi.h>
+#include <linux/efi.h>
+#include <linux/string.h>
+#include <linux/bootmem.h>
+#include <linux/slab.h>
+#include <asm/dmi.h>
+#include <asm/desc.h>
+#include <asm/kdebug.h>
+
+#define PCI_BIOS32_SD_VALUE 0x5F32335F /* "_32_" */
+#define CRU_BIOS_SIGNATURE_VALUE 0x55524324
+#define PCI_BIOS32_PARAGRAPH_LEN 16
+#define PCI_ROM_BASE1 0x000F0000
+#define ROM_SIZE 0x10000
+
+struct bios32_service_dir {
+ u32 signature;
+ u32 entry_point;
+ u8 revision;
+ u8 length;
+ u8 checksum;
+ u8 reserved[5];
+};
+
+/*
+ * smbios_entry_point - defines SMBIOS entry point structure
+ *
+ * anchor[4] - anchor string (_SM_)
+ * checksum - checksum of the entry point structure
+ * length - length of the entry point structure
+ * major_ver - major version (02h for revision 2.1)
+ * minor_ver - minor version (01h for revision 2.1)
+ * max_struct_size - size of the largest SMBIOS structure
+ * revision - entry point structure revision implemented
+ * formatted_area[5] - reserved
+ * intermediate_anchor[5] - intermediate anchor string (_DMI_)
+ * intermediate_checksum - intermediate checksum
+ * table_length - structure table length
+ * table_address - structure table address
+ * table_num_structs - number of SMBIOS structures present
+ * bcd_revision - BCD revision
+ */
+struct smbios_entry_point {
+ u8 anchor[4];
+ u8 checksum;
+ u8 length;
+ u8 major_ver;
+ u8 minor_ver;
+ u16 max_struct_size;
+ u8 revision;
+ u8 formatted_area[5];
+ u8 intermediate_anchor[5];
+ u8 intermediate_checksum;
+ u16 table_length;
+ u64 table_address;
+ u16 table_num_structs;
+ u8 bcd_revision;
+};
+
+/* type 212 */
+struct smbios_cru64_info {
+ u8 type;
+ u8 byte_length;
+ u16 handle;
+ u32 signature;
+ u64 physical_address;
+ u32 double_length;
+ u32 double_offset;
+};
+#define SMBIOS_CRU64_INFORMATION 212
+
+struct cmn_registers {
+ union {
+ struct {
+ u8 ral;
+ u8 rah;
+ u16 rea2;
+ };
+ u32 reax;
+ } u1;
+ union {
+ struct {
+ u8 rbl;
+ u8 rbh;
+ u8 reb2l;
+ u8 reb2h;
+ };
+ u32 rebx;
+ } u2;
+ union {
+ struct {
+ u8 rcl;
+ u8 rch;
+ u16 rec2;
+ };
+ u32 recx;
+ } u3;
+ union {
+ struct {
+ u8 rdl;
+ u8 rdh;
+ u16 red2;
+ };
+ u32 redx;
+ } u4;
+
+ u32 resi;
+ u32 redi;
+ u16 rds;
+ u16 res;
+ u32 reflags;
+} __attribute__((packed));
+
+#define DEFAULT_MARGIN 30
+static unsigned int soft_margin = DEFAULT_MARGIN; /* in seconds */
+static unsigned int reload; /* the computed soft_margin */
+static int nowayout = WATCHDOG_NOWAYOUT;
+static char expect_release;
+static unsigned long hpwdt_is_open;
+
+static void __iomem *pci_mem_addr; /* the PCI-memory address */
+static unsigned long __iomem *hpwdt_timer_reg;
+static unsigned long __iomem *hpwdt_timer_con;
+
+static DEFINE_SPINLOCK(rom_lock);
+
+static void *cru_rom_addr;
+
+static struct cmn_registers cmn_regs;
+
+static struct pci_device_id hpwdt_devices[] = {
+ {
+ .vendor = PCI_VENDOR_ID_COMPAQ,
+ .device = 0xB203,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ },
+ {0}, /* terminate list */
+};
+MODULE_DEVICE_TABLE(pci, hpwdt_devices);
+
+/*
+ * bios_checksum
+ */
+static int __devinit bios_checksum(const char __iomem *ptr, int len)
+{
+ char sum = 0;
+ int i;
+
+ /*
+ * calculate checksum of size bytes. This should add up
+ * to zero if we have a valid header.
+ */
+ for (i = 0; i < len; i++)
+ sum += ptr[i];
+
+ return ((sum == 0) && (len > 0));
+}
+
+#ifndef CONFIG_X86_64
+/* --32 Bit Bios------------------------------------------------------------ */
+
+#define HPWDT_ARCH 32
+
+asmlinkage void asminline_call(struct cmn_registers *pi86Regs,
+ unsigned long *pRomEntry)
+{
+ asm("pushl %ebp \n\t"
+ "movl %esp, %ebp \n\t"
+ "pusha \n\t"
+ "pushf \n\t"
+ "push %es \n\t"
+ "push %ds \n\t"
+ "pop %es \n\t"
+ "movl 8(%ebp),%eax \n\t"
+ "movl 4(%eax),%ebx \n\t"
+ "movl 8(%eax),%ecx \n\t"
+ "movl 12(%eax),%edx \n\t"
+ "movl 16(%eax),%esi \n\t"
+ "movl 20(%eax),%edi \n\t"
+ "movl (%eax),%eax \n\t"
+ "push %cs \n\t"
+ "call *12(%ebp) \n\t"
+ "pushf \n\t"
+ "pushl %eax \n\t"
+ "movl 8(%ebp),%eax \n\t"
+ "movl %ebx,4(%eax) \n\t"
+ "movl %ecx,8(%eax) \n\t"
+ "movl %edx,12(%eax) \n\t"
+ "movl %esi,16(%eax) \n\t"
+ "movl %edi,20(%eax) \n\t"
+ "movw %ds,24(%eax) \n\t"
+ "movw %es,26(%eax) \n\t"
+ "popl %ebx \n\t"
+ "movl %ebx,(%eax) \n\t"
+ "popl %ebx \n\t"
+ "movl %ebx,28(%eax) \n\t"
+ "pop %es \n\t"
+ "popf \n\t"
+ "popa \n\t"
+ "leave \n\t" "ret");
+}
+
+/*
+ * cru_detect
+ *
+ * Routine Description:
+ * This function uses the 32-bit BIOS Service Directory record to
+ * search for a $CRU record.
+ *
+ * Return Value:
+ * 0 : SUCCESS
+ * <0 : FAILURE
+ */
+static int __devinit cru_detect(unsigned long map_entry,
+ unsigned long map_offset)
+{
+ void *bios32_map;
+ unsigned long *bios32_entrypoint;
+ unsigned long cru_physical_address;
+ unsigned long cru_length;
+ unsigned long physical_bios_base = 0;
+ unsigned long physical_bios_offset = 0;
+ int retval = -ENODEV;
+
+ bios32_map = ioremap(map_entry, (2 * PAGE_SIZE));
+
+ if (bios32_map == NULL)
+ return -ENODEV;
+
+ bios32_entrypoint = bios32_map + map_offset;
+
+ cmn_regs.u1.reax = CRU_BIOS_SIGNATURE_VALUE;
+
+ asminline_call(&cmn_regs, bios32_entrypoint);
+
+ if (cmn_regs.u1.ral != 0) {
+ printk(KERN_WARNING
+ "hpwdt: Call succeeded but with an error: 0x%x\n",
+ cmn_regs.u1.ral);
+ } else {
+ physical_bios_base = cmn_regs.u2.rebx;
+ physical_bios_offset = cmn_regs.u4.redx;
+ cru_length = cmn_regs.u3.recx;
+ cru_physical_address =
+ physical_bios_base + physical_bios_offset;
+
+ /* If the values look OK, then map it in. */
+ if ((physical_bios_base + physical_bios_offset)) {
+ cru_rom_addr =
+ ioremap(cru_physical_address, cru_length);
+ if (cru_rom_addr)
+ retval = 0;
+ }
+
+ printk(KERN_DEBUG "hpwdt: CRU Base Address: 0x%lx\n",
+ physical_bios_base);
+ printk(KERN_DEBUG "hpwdt: CRU Offset Address: 0x%lx\n",
+ physical_bios_offset);
+ printk(KERN_DEBUG "hpwdt: CRU Length: 0x%lx\n",
+ cru_length);
+ printk(KERN_DEBUG "hpwdt: CRU Mapped Address: 0x%x\n",
+ (unsigned int)&cru_rom_addr);
+ }
+ iounmap(bios32_map);
+ return retval;
+}
+
+/*
+ * bios32_present
+ *
+ * Routine Description:
+ * This function finds the 32-bit BIOS Service Directory
+ *
+ * Return Value:
+ * 0 : SUCCESS
+ * <0 : FAILURE
+ */
+static int __devinit bios32_present(const char __iomem *p)
+{
+ struct bios32_service_dir *bios_32_ptr;
+ int length;
+ unsigned long map_entry, map_offset;
+
+ bios_32_ptr = (struct bios32_service_dir *) p;
+
+ /*
+ * Search for signature by checking equal to the swizzled value
+ * instead of calling another routine to perform a strcmp.
+ */
+ if (bios_32_ptr->signature == PCI_BIOS32_SD_VALUE) {
+ length = bios_32_ptr->length * PCI_BIOS32_PARAGRAPH_LEN;
+ if (bios_checksum(p, length)) {
+ /*
+ * According to the spec, we're looking for the
+ * first 4KB-aligned address below the entrypoint
+ * listed in the header. The Service Directory code
+ * is guaranteed to occupy no more than 2 4KB pages.
+ */
+ map_entry = bios_32_ptr->entry_point & ~(PAGE_SIZE - 1);
+ map_offset = bios_32_ptr->entry_point - map_entry;
+
+ return cru_detect(map_entry, map_offset);
+ }
+ }
+ return -ENODEV;
+}
+
+static int __devinit detect_cru_service(void)
+{
+ char __iomem *p, *q;
+ int rc = -1;
+
+ /*
+ * Search from 0x0f0000 through 0x0fffff, inclusive.
+ */
+ p = ioremap(PCI_ROM_BASE1, ROM_SIZE);
+ if (p == NULL)
+ return -ENOMEM;
+
+ for (q = p; q < p + ROM_SIZE; q += 16) {
+ rc = bios32_present(q);
+ if (!rc)
+ break;
+ }
+ iounmap(p);
+ return rc;
+}
+
+#else
+/* --64 Bit Bios------------------------------------------------------------ */
+
+#define HPWDT_ARCH 64
+
+asmlinkage void asminline_call(struct cmn_registers *pi86Regs,
+ unsigned long *pRomEntry)
+{
+ asm("pushq %rbp \n\t"
+ "movq %rsp, %rbp \n\t"
+ "pushq %rax \n\t"
+ "pushq %rbx \n\t"
+ "pushq %rdx \n\t"
+ "pushq %r12 \n\t"
+ "pushq %r9 \n\t"
+ "movq %rsi, %r12 \n\t"
+ "movq %rdi, %r9 \n\t"
+ "movl 4(%r9),%ebx \n\t"
+ "movl 8(%r9),%ecx \n\t"
+ "movl 12(%r9),%edx \n\t"
+ "movl 16(%r9),%esi \n\t"
+ "movl 20(%r9),%edi \n\t"
+ "movl (%r9),%eax \n\t"
+ "call *%r12 \n\t"
+ "pushfq \n\t"
+ "popq %r12 \n\t"
+ "popfq \n\t"
+ "movl %eax, (%r9) \n\t"
+ "movl %ebx, 4(%r9) \n\t"
+ "movl %ecx, 8(%r9) \n\t"
+ "movl %edx, 12(%r9) \n\t"
+ "movl %esi, 16(%r9) \n\t"
+ "movl %edi, 20(%r9) \n\t"
+ "movq %r12, %rax \n\t"
+ "movl %eax, 28(%r9) \n\t"
+ "popq %r9 \n\t"
+ "popq %r12 \n\t"
+ "popq %rdx \n\t"
+ "popq %rbx \n\t"
+ "popq %rax \n\t"
+ "leave \n\t" "ret");
+}
+
+/*
+ * dmi_find_cru
+ *
+ * Routine Description:
+ * This function checks wether or not a SMBIOS/DMI record is
+ * the 64bit CRU info or not
+ *
+ * Return Value:
+ * 0 : SUCCESS - if record found
+ * <0 : FAILURE - if record not found
+ */
+static void __devinit dmi_find_cru(const struct dmi_header *dm)
+{
+ struct smbios_cru64_info *smbios_cru64_ptr;
+ unsigned long cru_physical_address;
+
+ if (dm->type == SMBIOS_CRU64_INFORMATION) {
+ smbios_cru64_ptr = (struct smbios_cru64_info *) dm;
+ if (smbios_cru64_ptr->signature == CRU_BIOS_SIGNATURE_VALUE) {
+ cru_physical_address =
+ smbios_cru64_ptr->physical_address +
+ smbios_cru64_ptr->double_offset;
+ cru_rom_addr = ioremap(cru_physical_address,
+ smbios_cru64_ptr->double_length);
+ }
+ }
+}
+
+/*
+ * dmi_table
+ *
+ * Routine Description:
+ * Decode the SMBIOS/DMI table and check if we have a 64bit CRU record
+ * or not.
+ *
+ * We have to be cautious here. We have seen BIOSes with DMI pointers
+ * pointing to completely the wrong place for example
+ */
+static void __devinit dmi_table(u8 *buf, int len, int num,
+ void (*decode)(const struct dmi_header *))
+{
+ u8 *data = buf;
+ int i = 0;
+
+ /*
+ * Stop when we see all the items the table claimed to have
+ * OR we run off the end of the table (also happens)
+ */
+ while ((i < num) && (data - buf + sizeof(struct dmi_header)) <= len) {
+ const struct dmi_header *dm = (const struct dmi_header *)data;
+
+ /*
+ * We want to know the total length (formated area and strings)
+ * before decoding to make sure we won't run off the table in
+ * dmi_decode or dmi_string
+ */
+ data += dm->length;
+ while ((data - buf < len - 1) && (data[0] || data[1]))
+ data++;
+ if (data - buf < len - 1)
+ decode(dm);
+ data += 2;
+ i++;
+ }
+}
+
+/*
+ * smbios_present
+ *
+ * Routine Description:
+ * This function parses the SMBIOS entry point table to retrieve
+ * the 64 bit CRU Service.
+ *
+ * Return Value:
+ * 0 : SUCCESS
+ * <0 : FAILURE
+ */
+static int __devinit smbios_present(const char __iomem *p)
+{
+ struct smbios_entry_point *eps =
+ (struct smbios_entry_point *) p;
+ int length;
+ u8 *buf;
+
+ /* check if we have indeed the SMBIOS table entry point */
+ if ((strncmp((char *)eps->anchor, "_SM_",
+ sizeof(eps->anchor))) == 0) {
+ length = eps->length;
+
+ /* SMBIOS v2.1 implementation might use 0x1e */
+ if ((length == 0x1e) &&
+ (eps->major_ver == 2) &&
+ (eps->minor_ver == 1))
+ length = 0x1f;
+
+ /*
+ * Now we will check:
+ * - SMBIOS checksum must be 0
+ * - intermediate anchor should be _DMI_
+ * - intermediate checksum should be 0
+ */
+ if ((bios_checksum(p, length)) &&
+ (strncmp((char *)eps->intermediate_anchor, "_DMI_",
+ sizeof(eps->intermediate_anchor)) == 0) &&
+ (bios_checksum(p+0x10, 15))) {
+ buf = ioremap(eps->table_address, eps->table_length);
+ if (buf == NULL)
+ return -ENODEV;
+
+
+ /* Scan the DMI table for the 64 bit CRU service */
+ dmi_table(buf, eps->table_length,
+ eps->table_num_structs, dmi_find_cru);
+
+ iounmap(buf);
+ return 0;
+ }
+ }
+
+ return -ENODEV;
+}
+
+static int __devinit smbios_scan_machine(void)
+{
+ char __iomem *p, *q;
+ int rc;
+
+ if (efi_enabled) {
+ if (efi.smbios == EFI_INVALID_TABLE_ADDR)
+ return -ENODEV;
+
+ p = ioremap(efi.smbios, 32);
+ if (p == NULL)
+ return -ENOMEM;
+
+ rc = smbios_present(p);
+ iounmap(p);
+ } else {
+ /*
+ * Search from 0x0f0000 through 0x0fffff, inclusive.
+ */
+ p = ioremap(PCI_ROM_BASE1, ROM_SIZE);
+ if (p == NULL)
+ return -ENOMEM;
+
+ for (q = p; q < p + ROM_SIZE; q += 16) {
+ rc = smbios_present(q);
+ if (!rc) {
+ break;
+ }
+ }
+ iounmap(p);
+ }
+}
+
+static int __devinit detect_cru_service(void)
+{
+ cru_rom_addr = NULL;
+
+ smbios_scan_machine(); /* will become dmi_walk(dmi_find_cru); */
+
+ /* if cru_rom_addr has been set then we found a CRU service */
+ return ((cru_rom_addr != NULL)? 0: -ENODEV);
+}
+
+/* ------------------------------------------------------------------------- */
+
+#endif
+
+/*
+ * NMI Handler
+ */
+static int hpwdt_pretimeout(struct notifier_block *nb, unsigned long ulReason,
+ void *data)
+{
+ static unsigned long rom_pl;
+ static int die_nmi_called;
+
+ if (ulReason != DIE_NMI && ulReason != DIE_NMI_IPI)
+ return NOTIFY_OK;
+
+ spin_lock_irqsave(&rom_lock, rom_pl);
+ if (!die_nmi_called)
+ asminline_call(&cmn_regs, cru_rom_addr);
+ die_nmi_called = 1;
+ spin_unlock_irqrestore(&rom_lock, rom_pl);
+ if (cmn_regs.u1.ral == 0) {
+ printk(KERN_WARNING "hpwdt: An NMI occurred, "
+ "but unable to determine source.\n");
+ } else {
+ panic("An NMI occurred, please see the Integrated "
+ "Management Log for details.\n");
+ }
+
+ return NOTIFY_STOP;
+}
+
+/*
+ * Watchdog operations
+ */
+static void hpwdt_start(void)
+{
+ reload = (soft_margin * 1000) / 128;
+ iowrite16(reload, hpwdt_timer_reg);
+ iowrite16(0x85, hpwdt_timer_con);
+}
+
+static void hpwdt_stop(void)
+{
+ unsigned long data;
+
+ data = ioread16(hpwdt_timer_con);
+ data &= 0xFE;
+ iowrite16(data, hpwdt_timer_con);
+}
+
+static void hpwdt_ping(void)
+{
+ iowrite16(reload, hpwdt_timer_reg);
+}
+
+static int hpwdt_change_timer(int new_margin)
+{
+ /* Arbitrary, can't find the card's limits */
+ if (new_margin < 30 || new_margin > 600) {
+ printk(KERN_WARNING
+ "hpwdt: New value passed in is invalid: %d seconds.\n",
+ new_margin);
+ return -EINVAL;
+ }
+
+ soft_margin = new_margin;
+ printk(KERN_DEBUG
+ "hpwdt: New timer passed in is %d seconds.\n",
+ new_margin);
+ reload = (soft_margin * 1000) / 128;
+
+ return 0;
+}
+
+/*
+ * /dev/watchdog handling
+ */
+static int hpwdt_open(struct inode *inode, struct file *file)
+{
+ /* /dev/watchdog can only be opened once */
+ if (test_and_set_bit(0, &hpwdt_is_open))
+ return -EBUSY;
+
+ /* Start the watchdog */
+ hpwdt_start();
+ hpwdt_ping();
+
+ return nonseekable_open(inode, file);
+}
+
+static int hpwdt_release(struct inode *inode, struct file *file)
+{
+ /* Stop the watchdog */
+ if (expect_release == 42) {
+ hpwdt_stop();
+ } else {
+ printk(KERN_CRIT
+ "hpwdt: Unexpected close, not stopping watchdog!\n");
+ hpwdt_ping();
+ }
+
+ expect_release = 0;
+
+ /* /dev/watchdog is being closed, make sure it can be re-opened */
+ clear_bit(0, &hpwdt_is_open);
+
+ return 0;
+}
+
+static ssize_t hpwdt_write(struct file *file, const char __user *data,
+ size_t len, loff_t *ppos)
+{
+ /* See if we got the magic character 'V' and reload the timer */
+ if (len) {
+ if (!nowayout) {
+ size_t i;
+
+ /* note: just in case someone wrote the magic character
+ * five months ago... */
+ expect_release = 0;
+
+ /* scan to see whether or not we got the magic char. */
+ for (i = 0; i != len; i++) {
+ char c;
+ if (get_user(c, data+i))
+ return -EFAULT;
+ if (c == 'V')
+ expect_release = 42;
+ }
+ }
+
+ /* someone wrote to us, we should reload the timer */
+ hpwdt_ping();
+ }
+
+ return len;
+}
+
+static struct watchdog_info ident = {
+ .options = WDIOF_SETTIMEOUT |
+ WDIOF_KEEPALIVEPING |
+ WDIOF_MAGICCLOSE,
+ .identity = "HP iLO2 HW Watchdog Timer",
+};
+
+static long hpwdt_ioctl(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ void __user *argp = (void __user *)arg;
+ int __user *p = argp;
+ int new_margin;
+ int ret = -ENOTTY;
+
+ switch (cmd) {
+ case WDIOC_GETSUPPORT:
+ ret = 0;
+ if (copy_to_user(argp, &ident, sizeof(ident)))
+ ret = -EFAULT;
+ break;
+
+ case WDIOC_GETSTATUS:
+ case WDIOC_GETBOOTSTATUS:
+ ret = put_user(0, p);
+ break;
+
+ case WDIOC_KEEPALIVE:
+ hpwdt_ping();
+ ret = 0;
+ break;
+
+ case WDIOC_SETTIMEOUT:
+ ret = get_user(new_margin, p);
+ if (ret)
+ break;
+
+ ret = hpwdt_change_timer(new_margin);
+ if (ret)
+ break;
+
+ hpwdt_ping();
+ /* Fall */
+ case WDIOC_GETTIMEOUT:
+ ret = put_user(soft_margin, p);
+ break;
+ }
+ return ret;
+}
+
+/*
+ * Kernel interfaces
+ */
+static struct file_operations hpwdt_fops = {
+ .owner = THIS_MODULE,
+ .llseek = no_llseek,
+ .write = hpwdt_write,
+ .unlocked_ioctl = hpwdt_ioctl,
+ .open = hpwdt_open,
+ .release = hpwdt_release,
+};
+
+static struct miscdevice hpwdt_miscdev = {
+ .minor = WATCHDOG_MINOR,
+ .name = "watchdog",
+ .fops = &hpwdt_fops,
+};
+
+static struct notifier_block die_notifier = {
+ .notifier_call = hpwdt_pretimeout,
+ .priority = 0x7FFFFFFF,
+};
+
+/*
+ * Init & Exit
+ */
+
+static int __devinit hpwdt_init_one(struct pci_dev *dev,
+ const struct pci_device_id *ent)
+{
+ int retval;
+
+ /*
+ * First let's find out if we are on an iLO2 server. We will
+ * not run on a legacy ASM box.
+ */
+ if (dev->subsystem_vendor != PCI_VENDOR_ID_HP) {
+ dev_warn(&dev->dev,
+ "This server does not have an iLO2 ASIC.\n");
+ return -ENODEV;
+ }
+
+ if (pci_enable_device(dev)) {
+ dev_warn(&dev->dev,
+ "Not possible to enable PCI Device: 0x%x:0x%x.\n",
+ ent->vendor, ent->device);
+ return -ENODEV;
+ }
+
+ pci_mem_addr = pci_iomap(dev, 1, 0x80);
+ if (!pci_mem_addr) {
+ dev_warn(&dev->dev,
+ "Unable to detect the iLO2 server memory.\n");
+ retval = -ENOMEM;
+ goto error_pci_iomap;
+ }
+ hpwdt_timer_reg = pci_mem_addr + 0x70;
+ hpwdt_timer_con = pci_mem_addr + 0x72;
+
+ /* Make sure that we have a valid soft_margin */
+ if (hpwdt_change_timer(soft_margin))
+ hpwdt_change_timer(DEFAULT_MARGIN);
+
+ /*
+ * We need to map the ROM to get the CRU service.
+ * For 32 bit Operating Systems we need to go through the 32 Bit
+ * BIOS Service Directory
+ * For 64 bit Operating Systems we get that service through SMBIOS.
+ */
+ retval = detect_cru_service();
+ if (retval < 0) {
+ dev_warn(&dev->dev,
+ "Unable to detect the %d Bit CRU Service.\n",
+ HPWDT_ARCH);
+ goto error_get_cru;
+ }
+
+ /*
+ * We know this is the only CRU call we need to make so lets keep as
+ * few instructions as possible once the NMI comes in.
+ */
+ cmn_regs.u1.rah = 0x0D;
+ cmn_regs.u1.ral = 0x02;
+
+ retval = register_die_notifier(&die_notifier);
+ if (retval != 0) {
+ dev_warn(&dev->dev,
+ "Unable to register a die notifier (err=%d).\n",
+ retval);
+ goto error_die_notifier;
+ }
+
+ retval = misc_register(&hpwdt_miscdev);
+ if (retval < 0) {
+ dev_warn(&dev->dev,
+ "Unable to register miscdev on minor=%d (err=%d).\n",
+ WATCHDOG_MINOR, retval);
+ goto error_misc_register;
+ }
+
+ printk(KERN_INFO
+ "hp Watchdog Timer Driver: 1.00"
+ ", timer margin: %d seconds( nowayout=%d).\n",
+ soft_margin, nowayout);
+
+ return 0;
+
+error_misc_register:
+ unregister_die_notifier(&die_notifier);
+error_die_notifier:
+ if (cru_rom_addr)
+ iounmap(cru_rom_addr);
+error_get_cru:
+ pci_iounmap(dev, pci_mem_addr);
+error_pci_iomap:
+ pci_disable_device(dev);
+ return retval;
+}
+
+static void __devexit hpwdt_exit(struct pci_dev *dev)
+{
+ if (!nowayout)
+ hpwdt_stop();
+
+ misc_deregister(&hpwdt_miscdev);
+ unregister_die_notifier(&die_notifier);
+
+ if (cru_rom_addr)
+ iounmap(cru_rom_addr);
+ pci_iounmap(dev, pci_mem_addr);
+ pci_disable_device(dev);
+}
+
+static struct pci_driver hpwdt_driver = {
+ .name = "hpwdt",
+ .id_table = hpwdt_devices,
+ .probe = hpwdt_init_one,
+ .remove = __devexit_p(hpwdt_exit),
+};
+
+static void __exit hpwdt_cleanup(void)
+{
+ pci_unregister_driver(&hpwdt_driver);
+}
+
+static int __init hpwdt_init(void)
+{
+ return pci_register_driver(&hpwdt_driver);
+}
+
+MODULE_AUTHOR("Tom Mingarelli");
+MODULE_DESCRIPTION("hp watchdog driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+
+module_param(soft_margin, int, 0);
+MODULE_PARM_DESC(soft_margin, "Watchdog timeout in seconds");
+
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
+ __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+module_init(hpwdt_init);
+module_exit(hpwdt_cleanup);
diff --git a/drivers/watchdog/mtx-1_wdt.c b/drivers/watchdog/mtx-1_wdt.c
index 9845174..789831b 100644
--- a/drivers/watchdog/mtx-1_wdt.c
+++ b/drivers/watchdog/mtx-1_wdt.c
@@ -45,10 +45,13 @@
#include <linux/completion.h>
#include <linux/jiffies.h>
#include <linux/watchdog.h>
+#include <linux/platform_device.h>
+
#include <asm/io.h>
#include <asm/uaccess.h>
#include <asm/mach-au1x00/au1000.h>
+#include <asm/gpio.h>
#define MTX1_WDT_INTERVAL (5 * HZ)
@@ -61,6 +64,7 @@
volatile int queue;
int default_ticks;
unsigned long inuse;
+ unsigned gpio;
} mtx1_wdt_device;
static void mtx1_wdt_trigger(unsigned long unused)
@@ -73,7 +77,8 @@
* toggle GPIO2_15
*/
tmp = au_readl(GPIO2_DIR);
- tmp = (tmp & ~(1<<15)) | ((~tmp) & (1<<15));
+ tmp = (tmp & ~(1 << mtx1_wdt_device.gpio)) |
+ ((~tmp) & (1 << mtx1_wdt_device.gpio));
au_writel (tmp, GPIO2_DIR);
if (mtx1_wdt_device.queue && ticks)
@@ -93,7 +98,7 @@
{
if (!mtx1_wdt_device.queue) {
mtx1_wdt_device.queue = 1;
- au_writel (au_readl(GPIO2_DIR) | (u32)(1<<15), GPIO2_DIR);
+ gpio_set_value(mtx1_wdt_device.gpio, 1);
mod_timer(&mtx1_wdt_device.timer, jiffies + MTX1_WDT_INTERVAL);
}
mtx1_wdt_device.running++;
@@ -103,7 +108,7 @@
{
if (mtx1_wdt_device.queue) {
mtx1_wdt_device.queue = 0;
- au_writel (au_readl(GPIO2_DIR) & ~((u32)(1<<15)), GPIO2_DIR);
+ gpio_set_value(mtx1_wdt_device.gpio, 0);
}
ticks = mtx1_wdt_device.default_ticks;
@@ -197,10 +202,12 @@
};
-static int __init mtx1_wdt_init(void)
+static int mtx1_wdt_probe(struct platform_device *pdev)
{
int ret;
+ mtx1_wdt_device.gpio = pdev->resource[0].start;
+
if ((ret = misc_register(&mtx1_wdt_misc)) < 0) {
printk(KERN_ERR " mtx-1_wdt : failed to register\n");
return ret;
@@ -222,13 +229,30 @@
return 0;
}
-static void __exit mtx1_wdt_exit(void)
+static int mtx1_wdt_remove(struct platform_device *pdev)
{
if (mtx1_wdt_device.queue) {
mtx1_wdt_device.queue = 0;
wait_for_completion(&mtx1_wdt_device.stop);
}
misc_deregister(&mtx1_wdt_misc);
+ return 0;
+}
+
+static struct platform_driver mtx1_wdt = {
+ .probe = mtx1_wdt_probe,
+ .remove = mtx1_wdt_remove,
+ .driver.name = "mtx1-wdt",
+};
+
+static int __init mtx1_wdt_init(void)
+{
+ return platform_driver_register(&mtx1_wdt);
+}
+
+static void __exit mtx1_wdt_exit(void)
+{
+ platform_driver_unregister(&mtx1_wdt);
}
module_init(mtx1_wdt_init);
@@ -237,3 +261,4 @@
MODULE_AUTHOR("Michael Stickel, Florian Fainelli");
MODULE_DESCRIPTION("Driver for the MTX-1 watchdog");
MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/sb_wdog.c b/drivers/watchdog/sb_wdog.c
new file mode 100644
index 0000000..b944314
--- /dev/null
+++ b/drivers/watchdog/sb_wdog.c
@@ -0,0 +1,353 @@
+/*
+ * Watchdog driver for SiByte SB1 SoCs
+ *
+ * Copyright (C) 2007 OnStor, Inc. * Andrew Sharp <andy.sharp@onstor.com>
+ *
+ * This driver is intended to make the second of two hardware watchdogs
+ * on the Sibyte 12XX and 11XX SoCs available to the user. There are two
+ * such devices available on the SoC, but it seems that there isn't an
+ * enumeration class for watchdogs in Linux like there is for RTCs.
+ * The second is used rather than the first because it uses IRQ 1,
+ * thereby avoiding all that IRQ 0 problematic nonsense.
+ *
+ * I have not tried this driver on a 1480 processor; it might work
+ * just well enough to really screw things up.
+ *
+ * It is a simple timer, and there is an interrupt that is raised the
+ * first time the timer expires. The second time it expires, the chip
+ * is reset and there is no way to redirect that NMI. Which could
+ * be problematic in some cases where this chip is sitting on the HT
+ * bus and has just taken responsibility for providing a cache block.
+ * Since the reset can't be redirected to the external reset pin, it is
+ * possible that other HT connected processors might hang and not reset.
+ * For Linux, a soft reset would probably be even worse than a hard reset.
+ * There you have it.
+ *
+ * The timer takes 23 bits of a 64 bit register (?) as a count value,
+ * and decrements the count every microsecond, for a max value of
+ * 0x7fffff usec or about 8.3ish seconds.
+ *
+ * This watchdog borrows some user semantics from the softdog driver,
+ * in that if you close the fd, it leaves the watchdog running, unless
+ * you previously wrote a 'V' to the fd, in which case it disables
+ * the watchdog when you close the fd like some other drivers.
+ *
+ * Based on various other watchdog drivers, which are probably all
+ * loosely based on something Alan Cox wrote years ago.
+ *
+ * (c) Copyright 1996 Alan Cox <alan@redhat.com>, All Rights Reserved.
+ * http://www.redhat.com
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 1 or 2 as published by the Free Software Foundation.
+ *
+ */
+#include <linux/module.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+#include <linux/fs.h>
+#include <linux/reboot.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/interrupt.h>
+
+#include <asm/sibyte/sb1250.h>
+#include <asm/sibyte/sb1250_regs.h>
+#include <asm/sibyte/sb1250_int.h>
+#include <asm/sibyte/sb1250_scd.h>
+
+
+/*
+ * set the initial count value of a timer
+ *
+ * wdog is the iomem address of the cfg register
+ */
+void sbwdog_set(char __iomem *wdog, unsigned long t)
+{
+ __raw_writeb(0, wdog - 0x10);
+ __raw_writeq(t & 0x7fffffUL, wdog);
+}
+
+/*
+ * cause the timer to [re]load it's initial count and start counting
+ * all over again
+ *
+ * wdog is the iomem address of the cfg register
+ */
+void sbwdog_pet(char __iomem *wdog)
+{
+ __raw_writeb(__raw_readb(wdog) | 1, wdog);
+}
+
+static unsigned long sbwdog_gate; /* keeps it to one thread only */
+static char __iomem *kern_dog = (char __iomem *)(IO_BASE + (A_SCD_WDOG_CFG_0));
+static char __iomem *user_dog = (char __iomem *)(IO_BASE + (A_SCD_WDOG_CFG_1));
+static unsigned long timeout = 0x7fffffUL; /* useconds: 8.3ish secs. */
+static int expect_close;
+
+static struct watchdog_info ident = {
+ .options = WDIOF_CARDRESET | WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING,
+ .identity = "SiByte Watchdog",
+};
+
+/*
+ * Allow only a single thread to walk the dog
+ */
+static int sbwdog_open(struct inode *inode, struct file *file)
+{
+ nonseekable_open(inode, file);
+ if (test_and_set_bit(0, &sbwdog_gate)) {
+ return -EBUSY;
+ }
+ __module_get(THIS_MODULE);
+
+ /*
+ * Activate the timer
+ */
+ sbwdog_set(user_dog, timeout);
+ __raw_writeb(1, user_dog);
+
+ return 0;
+}
+
+/*
+ * Put the dog back in the kennel.
+ */
+static int sbwdog_release(struct inode *inode, struct file *file)
+{
+ if (expect_close == 42) {
+ __raw_writeb(0, user_dog);
+ module_put(THIS_MODULE);
+ } else {
+ printk(KERN_CRIT "%s: Unexpected close, not stopping watchdog!\n",
+ ident.identity);
+ sbwdog_pet(user_dog);
+ }
+ clear_bit(0, &sbwdog_gate);
+ expect_close = 0;
+
+ return 0;
+}
+
+/*
+ * 42 - the answer
+ */
+static ssize_t sbwdog_write(struct file *file, const char __user *data,
+ size_t len, loff_t *ppos)
+{
+ int i;
+
+ if (len) {
+ /*
+ * restart the timer
+ */
+ expect_close = 0;
+
+ for (i = 0; i != len; i++) {
+ char c;
+
+ if (get_user(c, data + i)) {
+ return -EFAULT;
+ }
+ if (c == 'V') {
+ expect_close = 42;
+ }
+ }
+ sbwdog_pet(user_dog);
+ }
+
+ return len;
+}
+
+static int sbwdog_ioctl(struct inode *inode, struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ int ret = -ENOTTY;
+ unsigned long time;
+ void __user *argp = (void __user *)arg;
+ int __user *p = argp;
+
+ switch (cmd) {
+ case WDIOC_GETSUPPORT:
+ ret = copy_to_user(argp, &ident, sizeof(ident)) ? -EFAULT : 0;
+ break;
+
+ case WDIOC_GETSTATUS:
+ case WDIOC_GETBOOTSTATUS:
+ ret = put_user(0, p);
+ break;
+
+ case WDIOC_SETTIMEOUT:
+ ret = get_user(time, p);
+ if (ret) {
+ break;
+ }
+
+ time *= 1000000;
+ if (time > 0x7fffffUL) {
+ ret = -EINVAL;
+ break;
+ }
+ timeout = time;
+ sbwdog_set(user_dog, timeout);
+ sbwdog_pet(user_dog);
+
+ case WDIOC_GETTIMEOUT:
+ /*
+ * get the remaining count from the ... count register
+ * which is 1*8 before the config register
+ */
+ ret = put_user(__raw_readq(user_dog - 8) / 1000000, p);
+ break;
+
+ case WDIOC_KEEPALIVE:
+ sbwdog_pet(user_dog);
+ ret = 0;
+ break;
+ }
+ return ret;
+}
+
+/*
+ * Notifier for system down
+ */
+static int
+sbwdog_notify_sys(struct notifier_block *this, unsigned long code, void *erf)
+{
+ if (code == SYS_DOWN || code == SYS_HALT) {
+ /*
+ * sit and sit
+ */
+ __raw_writeb(0, user_dog);
+ __raw_writeb(0, kern_dog);
+ }
+
+ return NOTIFY_DONE;
+}
+
+static const struct file_operations sbwdog_fops =
+{
+ .owner = THIS_MODULE,
+ .llseek = no_llseek,
+ .write = sbwdog_write,
+ .ioctl = sbwdog_ioctl,
+ .open = sbwdog_open,
+ .release = sbwdog_release,
+};
+
+static struct miscdevice sbwdog_miscdev =
+{
+ .minor = WATCHDOG_MINOR,
+ .name = "watchdog",
+ .fops = &sbwdog_fops,
+};
+
+static struct notifier_block sbwdog_notifier = {
+ .notifier_call = sbwdog_notify_sys,
+};
+
+/*
+ * interrupt handler
+ *
+ * doesn't do a whole lot for user, but oh so cleverly written so kernel
+ * code can use it to re-up the watchdog, thereby saving the kernel from
+ * having to create and maintain a timer, just to tickle another timer,
+ * which is just so wrong.
+ */
+irqreturn_t sbwdog_interrupt(int irq, void *addr)
+{
+ unsigned long wd_init;
+ char *wd_cfg_reg = (char *)addr;
+ u8 cfg;
+
+ cfg = __raw_readb(wd_cfg_reg);
+ wd_init = __raw_readq(wd_cfg_reg - 8) & 0x7fffff;
+
+ /*
+ * if it's the second watchdog timer, it's for those users
+ */
+ if (wd_cfg_reg == user_dog) {
+ printk(KERN_CRIT
+ "%s in danger of initiating system reset in %ld.%01ld seconds\n",
+ ident.identity, wd_init / 1000000, (wd_init / 100000) % 10);
+ } else {
+ cfg |= 1;
+ }
+
+ __raw_writeb(cfg, wd_cfg_reg);
+
+ return IRQ_HANDLED;
+}
+
+static int __init sbwdog_init(void)
+{
+ int ret;
+
+ /*
+ * register a reboot notifier
+ */
+ ret = register_reboot_notifier(&sbwdog_notifier);
+ if (ret) {
+ printk (KERN_ERR "%s: cannot register reboot notifier (err=%d)\n",
+ ident.identity, ret);
+ return ret;
+ }
+
+ /*
+ * get the resources
+ */
+ ret = misc_register(&sbwdog_miscdev);
+ if (ret == 0) {
+ printk(KERN_INFO "%s: timeout is %ld.%ld secs\n", ident.identity,
+ timeout / 1000000, (timeout / 100000) % 10);
+ }
+
+ ret = request_irq(1, sbwdog_interrupt, IRQF_DISABLED | IRQF_SHARED,
+ ident.identity, (void *)user_dog);
+ if (ret) {
+ printk(KERN_ERR "%s: failed to request irq 1 - %d\n", ident.identity,
+ ret);
+ misc_deregister(&sbwdog_miscdev);
+ }
+
+ return ret;
+}
+
+static void __exit sbwdog_exit(void)
+{
+ misc_deregister(&sbwdog_miscdev);
+}
+
+module_init(sbwdog_init);
+module_exit(sbwdog_exit);
+
+MODULE_AUTHOR("Andrew Sharp <andy.sharp@onstor.com>");
+MODULE_DESCRIPTION("SiByte Watchdog");
+
+module_param(timeout, ulong, 0);
+MODULE_PARM_DESC(timeout,
+ "Watchdog timeout in microseconds (max/default 8388607 or 8.3ish secs)");
+
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+
+/*
+ * example code that can be put in a platform code area to utilize the
+ * first watchdog timer for the kernels own purpose.
+
+ void
+platform_wd_setup(void)
+{
+ int ret;
+
+ ret = request_irq(0, sbwdog_interrupt, IRQF_DISABLED | IRQF_SHARED,
+ "Kernel Watchdog", IOADDR(A_SCD_WDOG_CFG_0));
+ if (ret) {
+ printk(KERN_CRIT "Watchdog IRQ zero(0) failed to be requested - %d\n",
+ ret);
+ }
+}
+
+
+ */
diff --git a/fs/bio.c b/fs/bio.c
index 242e409..3312fcc 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -903,7 +903,7 @@
}
}
-void bio_release_pages(struct bio *bio)
+static void bio_release_pages(struct bio *bio)
{
struct bio_vec *bvec = bio->bi_io_vec;
int i;
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 67fe72c..7d822fa 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -31,6 +31,8 @@
struct inode vfs_inode;
};
+static const struct address_space_operations def_blk_aops;
+
static inline struct bdev_inode *BDEV_I(struct inode *inode)
{
return container_of(inode, struct bdev_inode, vfs_inode);
@@ -171,203 +173,6 @@
iov, offset, nr_segs, blkdev_get_blocks, NULL);
}
-#if 0
-static void blk_end_aio(struct bio *bio, int error)
-{
- struct kiocb *iocb = bio->bi_private;
- atomic_t *bio_count = &iocb->ki_bio_count;
-
- if (bio_data_dir(bio) == READ)
- bio_check_pages_dirty(bio);
- else {
- bio_release_pages(bio);
- bio_put(bio);
- }
-
- /* iocb->ki_nbytes stores error code from LLDD */
- if (error)
- iocb->ki_nbytes = -EIO;
-
- if (atomic_dec_and_test(bio_count)) {
- if ((long)iocb->ki_nbytes < 0)
- aio_complete(iocb, iocb->ki_nbytes, 0);
- else
- aio_complete(iocb, iocb->ki_left, 0);
- }
-
- return 0;
-}
-
-#define VEC_SIZE 16
-struct pvec {
- unsigned short nr;
- unsigned short idx;
- struct page *page[VEC_SIZE];
-};
-
-#define PAGES_SPANNED(addr, len) \
- (DIV_ROUND_UP((addr) + (len), PAGE_SIZE) - (addr) / PAGE_SIZE);
-
-/*
- * get page pointer for user addr, we internally cache struct page array for
- * (addr, count) range in pvec to avoid frequent call to get_user_pages. If
- * internal page list is exhausted, a batch count of up to VEC_SIZE is used
- * to get next set of page struct.
- */
-static struct page *blk_get_page(unsigned long addr, size_t count, int rw,
- struct pvec *pvec)
-{
- int ret, nr_pages;
- if (pvec->idx == pvec->nr) {
- nr_pages = PAGES_SPANNED(addr, count);
- nr_pages = min(nr_pages, VEC_SIZE);
- down_read(¤t->mm->mmap_sem);
- ret = get_user_pages(current, current->mm, addr, nr_pages,
- rw == READ, 0, pvec->page, NULL);
- up_read(¤t->mm->mmap_sem);
- if (ret < 0)
- return ERR_PTR(ret);
- pvec->nr = ret;
- pvec->idx = 0;
- }
- return pvec->page[pvec->idx++];
-}
-
-/* return a page back to pvec array */
-static void blk_unget_page(struct page *page, struct pvec *pvec)
-{
- pvec->page[--pvec->idx] = page;
-}
-
-static ssize_t
-blkdev_direct_IO(int rw, struct kiocb *iocb, const struct iovec *iov,
- loff_t pos, unsigned long nr_segs)
-{
- struct inode *inode = iocb->ki_filp->f_mapping->host;
- unsigned blkbits = blksize_bits(bdev_hardsect_size(I_BDEV(inode)));
- unsigned blocksize_mask = (1 << blkbits) - 1;
- unsigned long seg = 0; /* iov segment iterator */
- unsigned long nvec; /* number of bio vec needed */
- unsigned long cur_off; /* offset into current page */
- unsigned long cur_len; /* I/O len of current page, up to PAGE_SIZE */
-
- unsigned long addr; /* user iovec address */
- size_t count; /* user iovec len */
- size_t nbytes = iocb->ki_nbytes = iocb->ki_left; /* total xfer size */
- loff_t size; /* size of block device */
- struct bio *bio;
- atomic_t *bio_count = &iocb->ki_bio_count;
- struct page *page;
- struct pvec pvec;
-
- pvec.nr = 0;
- pvec.idx = 0;
-
- if (pos & blocksize_mask)
- return -EINVAL;
-
- size = i_size_read(inode);
- if (pos + nbytes > size) {
- nbytes = size - pos;
- iocb->ki_left = nbytes;
- }
-
- /*
- * check first non-zero iov alignment, the remaining
- * iov alignment is checked inside bio loop below.
- */
- do {
- addr = (unsigned long) iov[seg].iov_base;
- count = min(iov[seg].iov_len, nbytes);
- if (addr & blocksize_mask || count & blocksize_mask)
- return -EINVAL;
- } while (!count && ++seg < nr_segs);
- atomic_set(bio_count, 1);
-
- while (nbytes) {
- /* roughly estimate number of bio vec needed */
- nvec = (nbytes + PAGE_SIZE - 1) / PAGE_SIZE;
- nvec = max(nvec, nr_segs - seg);
- nvec = min(nvec, (unsigned long) BIO_MAX_PAGES);
-
- /* bio_alloc should not fail with GFP_KERNEL flag */
- bio = bio_alloc(GFP_KERNEL, nvec);
- bio->bi_bdev = I_BDEV(inode);
- bio->bi_end_io = blk_end_aio;
- bio->bi_private = iocb;
- bio->bi_sector = pos >> blkbits;
-same_bio:
- cur_off = addr & ~PAGE_MASK;
- cur_len = PAGE_SIZE - cur_off;
- if (count < cur_len)
- cur_len = count;
-
- page = blk_get_page(addr, count, rw, &pvec);
- if (unlikely(IS_ERR(page)))
- goto backout;
-
- if (bio_add_page(bio, page, cur_len, cur_off)) {
- pos += cur_len;
- addr += cur_len;
- count -= cur_len;
- nbytes -= cur_len;
-
- if (count)
- goto same_bio;
- while (++seg < nr_segs) {
- addr = (unsigned long) iov[seg].iov_base;
- count = iov[seg].iov_len;
- if (!count)
- continue;
- if (unlikely(addr & blocksize_mask ||
- count & blocksize_mask)) {
- page = ERR_PTR(-EINVAL);
- goto backout;
- }
- count = min(count, nbytes);
- goto same_bio;
- }
- } else {
- blk_unget_page(page, &pvec);
- }
-
- /* bio is ready, submit it */
- if (rw == READ)
- bio_set_pages_dirty(bio);
- atomic_inc(bio_count);
- submit_bio(rw, bio);
- }
-
-completion:
- iocb->ki_left -= nbytes;
- nbytes = iocb->ki_left;
- iocb->ki_pos += nbytes;
-
- blk_run_address_space(inode->i_mapping);
- if (atomic_dec_and_test(bio_count))
- aio_complete(iocb, nbytes, 0);
-
- return -EIOCBQUEUED;
-
-backout:
- /*
- * back out nbytes count constructed so far for this bio,
- * we will throw away current bio.
- */
- nbytes += bio->bi_size;
- bio_release_pages(bio);
- bio_put(bio);
-
- /*
- * if no bio was submmitted, return the error code.
- * otherwise, proceed with pending I/O completion.
- */
- if (atomic_read(bio_count) == 1)
- return PTR_ERR(page);
- goto completion;
-}
-#endif
-
static int blkdev_writepage(struct page *page, struct writeback_control *wbc)
{
return block_write_full_page(page, blkdev_get_block, wbc);
@@ -1334,7 +1139,7 @@
return blkdev_ioctl(file->f_mapping->host, file, cmd, arg);
}
-const struct address_space_operations def_blk_aops = {
+static const struct address_space_operations def_blk_aops = {
.readpage = blkdev_readpage,
.writepage = blkdev_writepage,
.sync_page = block_sync_page,
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index f784d2f..f054778 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -238,6 +238,9 @@
*(.kprobes.text) \
VMLINUX_SYMBOL(__kprobes_text_end) = .;
+/* Section used for early init (in .S files) */
+#define HEAD_TEXT *(.head.text)
+
/* init and exit section handling */
#define INIT_DATA \
*(.init.data) \
diff --git a/include/asm-s390/bitops.h b/include/asm-s390/bitops.h
index ab83c84..965394e 100644
--- a/include/asm-s390/bitops.h
+++ b/include/asm-s390/bitops.h
@@ -456,16 +456,18 @@
asm volatile(
#ifndef __s390x__
- " ahi %1,31\n"
- " srl %1,5\n"
+ " ahi %1,-1\n"
+ " sra %1,5\n"
+ " jz 1f\n"
"0: c %2,0(%0,%3)\n"
" jne 1f\n"
" la %0,4(%0)\n"
" brct %1,0b\n"
"1:\n"
#else
- " aghi %1,63\n"
- " srlg %1,%1,6\n"
+ " aghi %1,-1\n"
+ " srag %1,%1,6\n"
+ " jz 1f\n"
"0: cg %2,0(%0,%3)\n"
" jne 1f\n"
" la %0,8(%0)\n"
@@ -491,16 +493,18 @@
asm volatile(
#ifndef __s390x__
- " ahi %1,31\n"
- " srl %1,5\n"
+ " ahi %1,-1\n"
+ " sra %1,5\n"
+ " jz 1f\n"
"0: c %2,0(%0,%3)\n"
" jne 1f\n"
" la %0,4(%0)\n"
" brct %1,0b\n"
"1:\n"
#else
- " aghi %1,63\n"
- " srlg %1,%1,6\n"
+ " aghi %1,-1\n"
+ " srag %1,%1,6\n"
+ " jz 1f\n"
"0: cg %2,0(%0,%3)\n"
" jne 1f\n"
" la %0,8(%0)\n"
diff --git a/include/asm-sparc64/ptrace.h b/include/asm-sparc64/ptrace.h
index 8617c3a..67341cf 100644
--- a/include/asm-sparc64/ptrace.h
+++ b/include/asm-sparc64/ptrace.h
@@ -102,6 +102,7 @@
} while (0)
#define user_mode(regs) (!((regs)->tstate & TSTATE_PRIV))
#define instruction_pointer(regs) ((regs)->tpc)
+#define regs_return_value(regs) ((regs)->u_regs[UREG_I0])
#ifdef CONFIG_SMP
extern unsigned long profile_pc(struct pt_regs *);
#else
diff --git a/include/asm-xtensa/cacheflush.h b/include/asm-xtensa/cacheflush.h
index b773c57..94c4c53 100644
--- a/include/asm-xtensa/cacheflush.h
+++ b/include/asm-xtensa/cacheflush.h
@@ -70,6 +70,8 @@
#endif
#if (ICACHE_WAY_SIZE > PAGE_SIZE)
extern void __invalidate_icache_page_alias(unsigned long, unsigned long);
+#else
+# define __invalidate_icache_page_alias(v,p) do { } while(0)
#endif
/*
diff --git a/include/asm-xtensa/coprocessor.h b/include/asm-xtensa/coprocessor.h
index aa21210..1cbcf90 100644
--- a/include/asm-xtensa/coprocessor.h
+++ b/include/asm-xtensa/coprocessor.h
@@ -5,81 +5,173 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (C) 2003 - 2005 Tensilica Inc.
+ * Copyright (C) 2003 - 2007 Tensilica Inc.
*/
+
#ifndef _XTENSA_COPROCESSOR_H
#define _XTENSA_COPROCESSOR_H
-#include <asm/variant/core.h>
+#include <linux/stringify.h>
#include <asm/variant/tie.h>
+#include <asm/types.h>
-#if !XCHAL_HAVE_CP
+#ifdef __ASSEMBLY__
+# include <asm/variant/tie-asm.h>
-#define XTENSA_CP_EXTRA_OFFSET 0
-#define XTENSA_CP_EXTRA_ALIGN 1 /* must be a power of 2 */
-#define XTENSA_CP_EXTRA_SIZE 0
+.macro xchal_sa_start a b
+ .set .Lxchal_pofs_, 0
+ .set .Lxchal_ofs_, 0
+.endm
-#else
+.macro xchal_sa_align ptr minofs maxofs ofsalign totalign
+ .set .Lxchal_ofs_, .Lxchal_ofs_ + .Lxchal_pofs_ + \totalign - 1
+ .set .Lxchal_ofs_, (.Lxchal_ofs_ & -\totalign) - .Lxchal_pofs_
+.endm
-#define XTOFS(last_start,last_size,align) \
- ((last_start+last_size+align-1) & -align)
+#define _SELECT ( XTHAL_SAS_TIE | XTHAL_SAS_OPT \
+ | XTHAL_SAS_CC \
+ | XTHAL_SAS_CALR | XTHAL_SAS_CALE )
-#define XTENSA_CP_EXTRA_OFFSET 0
-#define XTENSA_CP_EXTRA_ALIGN XCHAL_EXTRA_SA_ALIGN
+.macro save_xtregs_opt ptr clb at1 at2 at3 at4 offset
+ .if XTREGS_OPT_SIZE > 0
+ addi \clb, \ptr, \offset
+ xchal_ncp_store \clb \at1 \at2 \at3 \at4 select=_SELECT
+ .endif
+.endm
-#define XTENSA_CPE_CP0_OFFSET \
- XTOFS(XTENSA_CP_EXTRA_OFFSET, XCHAL_EXTRA_SA_SIZE, XCHAL_CP0_SA_ALIGN)
-#define XTENSA_CPE_CP1_OFFSET \
- XTOFS(XTENSA_CPE_CP0_OFFSET, XCHAL_CP0_SA_SIZE, XCHAL_CP1_SA_ALIGN)
-#define XTENSA_CPE_CP2_OFFSET \
- XTOFS(XTENSA_CPE_CP1_OFFSET, XCHAL_CP1_SA_SIZE, XCHAL_CP2_SA_ALIGN)
-#define XTENSA_CPE_CP3_OFFSET \
- XTOFS(XTENSA_CPE_CP2_OFFSET, XCHAL_CP2_SA_SIZE, XCHAL_CP3_SA_ALIGN)
-#define XTENSA_CPE_CP4_OFFSET \
- XTOFS(XTENSA_CPE_CP3_OFFSET, XCHAL_CP3_SA_SIZE, XCHAL_CP4_SA_ALIGN)
-#define XTENSA_CPE_CP5_OFFSET \
- XTOFS(XTENSA_CPE_CP4_OFFSET, XCHAL_CP4_SA_SIZE, XCHAL_CP5_SA_ALIGN)
-#define XTENSA_CPE_CP6_OFFSET \
- XTOFS(XTENSA_CPE_CP5_OFFSET, XCHAL_CP5_SA_SIZE, XCHAL_CP6_SA_ALIGN)
-#define XTENSA_CPE_CP7_OFFSET \
- XTOFS(XTENSA_CPE_CP6_OFFSET, XCHAL_CP6_SA_SIZE, XCHAL_CP7_SA_ALIGN)
-#define XTENSA_CP_EXTRA_SIZE \
- XTOFS(XTENSA_CPE_CP7_OFFSET, XCHAL_CP7_SA_SIZE, 16)
+.macro load_xtregs_opt ptr clb at1 at2 at3 at4 offset
+ .if XTREGS_OPT_SIZE > 0
+ addi \clb, \ptr, \offset
+ xchal_ncp_load \clb \at1 \at2 \at3 \at4 select=_SELECT
+ .endif
+.endm
+#undef _SELECT
-#if XCHAL_CP_NUM > 0
-# ifndef __ASSEMBLY__
+#define _SELECT ( XTHAL_SAS_TIE | XTHAL_SAS_OPT \
+ | XTHAL_SAS_NOCC \
+ | XTHAL_SAS_CALR | XTHAL_SAS_CALE | XTHAL_SAS_GLOB )
+
+.macro save_xtregs_user ptr clb at1 at2 at3 at4 offset
+ .if XTREGS_USER_SIZE > 0
+ addi \clb, \ptr, \offset
+ xchal_ncp_store \clb \at1 \at2 \at3 \at4 select=_SELECT
+ .endif
+.endm
+
+.macro load_xtregs_user ptr clb at1 at2 at3 at4 offset
+ .if XTREGS_USER_SIZE > 0
+ addi \clb, \ptr, \offset
+ xchal_ncp_load \clb \at1 \at2 \at3 \at4 select=_SELECT
+ .endif
+.endm
+#undef _SELECT
+
+
+
+#endif /* __ASSEMBLY__ */
+
/*
- * Tasks that own contents of (last user) each coprocessor.
- * Entries are 0 for not-owned or non-existent coprocessors.
- * Note: The size of this structure is fixed to 8 bytes in entry.S
+ * XTENSA_HAVE_COPROCESSOR(x) returns 1 if coprocessor x is configured.
+ *
+ * XTENSA_HAVE_IO_PORT(x) returns 1 if io-port x is configured.
+ *
*/
-typedef struct {
- struct task_struct *owner; /* owner */
- int offset; /* offset in cpextra space. */
-} coprocessor_info_t;
-# else
-# define COPROCESSOR_INFO_OWNER 0
-# define COPROCESSOR_INFO_OFFSET 4
-# define COPROCESSOR_INFO_SIZE 8
-# endif
-#endif
-#endif /* XCHAL_HAVE_CP */
+#define XTENSA_HAVE_COPROCESSOR(x) \
+ ((XCHAL_CP_MASK ^ XCHAL_CP_PORT_MASK) & (1 << (x)))
+#define XTENSA_HAVE_COPROCESSORS \
+ (XCHAL_CP_MASK ^ XCHAL_CP_PORT_MASK)
+#define XTENSA_HAVE_IO_PORT(x) \
+ (XCHAL_CP_PORT_MASK & (1 << (x)))
+#define XTENSA_HAVE_IO_PORTS \
+ XCHAL_CP_PORT_MASK
#ifndef __ASSEMBLY__
-# if XCHAL_CP_NUM > 0
-struct task_struct;
-extern void release_coprocessors (struct task_struct*);
-extern void save_coprocessor_registers(void*, int);
-# else
-# define release_coprocessors(task)
-# endif
-typedef unsigned char cp_state_t[XTENSA_CP_EXTRA_SIZE]
- __attribute__ ((aligned (XTENSA_CP_EXTRA_ALIGN)));
+
+#if XCHAL_HAVE_CP
+
+#define RSR_CPENABLE(x) do { \
+ __asm__ __volatile__("rsr %0," __stringify(CPENABLE) : "=a" (x)); \
+ } while(0);
+#define WSR_CPENABLE(x) do { \
+ __asm__ __volatile__("wsr %0," __stringify(CPENABLE) "; rsync" \
+ :: "a" (x)); \
+ } while(0);
+
+#endif /* XCHAL_HAVE_CP */
+
+
+/*
+ * Additional registers.
+ * We define three types of additional registers:
+ * ext: extra registers that are used by the compiler
+ * cpn: optional registers that can be used by a user application
+ * cpX: coprocessor registers that can only be used if the corresponding
+ * CPENABLE bit is set.
+ */
+
+#define XCHAL_SA_REG(list,cc,abi,type,y,name,z,align,size,...) \
+ __REG ## list (cc, abi, type, name, size, align)
+
+#define __REG0(cc,abi,t,name,s,a) __REG0_ ## cc (abi,name)
+#define __REG1(cc,abi,t,name,s,a) __REG1_ ## cc (name)
+#define __REG2(cc,abi,type,...) __REG2_ ## type (__VA_ARGS__)
+
+#define __REG0_0(abi,name)
+#define __REG0_1(abi,name) __REG0_1 ## abi (name)
+#define __REG0_10(name) __u32 name;
+#define __REG0_11(name) __u32 name;
+#define __REG0_12(name)
+
+#define __REG1_0(name) __u32 name;
+#define __REG1_1(name)
+
+#define __REG2_0(n,s,a) __u32 name;
+#define __REG2_1(n,s,a) unsigned char n[s] __attribute__ ((aligned(a)));
+#define __REG2_2(n,s,a) unsigned char n[s] __attribute__ ((aligned(a)));
+
+typedef struct { XCHAL_NCP_SA_LIST(0) } xtregs_opt_t
+ __attribute__ ((aligned (XCHAL_NCP_SA_ALIGN)));
+typedef struct { XCHAL_NCP_SA_LIST(1) } xtregs_user_t
+ __attribute__ ((aligned (XCHAL_NCP_SA_ALIGN)));
+
+#if XTENSA_HAVE_COPROCESSORS
+
+typedef struct { XCHAL_CP0_SA_LIST(2) } xtregs_cp0_t
+ __attribute__ ((aligned (XCHAL_CP0_SA_ALIGN)));
+typedef struct { XCHAL_CP1_SA_LIST(2) } xtregs_cp1_t
+ __attribute__ ((aligned (XCHAL_CP1_SA_ALIGN)));
+typedef struct { XCHAL_CP2_SA_LIST(2) } xtregs_cp2_t
+ __attribute__ ((aligned (XCHAL_CP2_SA_ALIGN)));
+typedef struct { XCHAL_CP3_SA_LIST(2) } xtregs_cp3_t
+ __attribute__ ((aligned (XCHAL_CP3_SA_ALIGN)));
+typedef struct { XCHAL_CP4_SA_LIST(2) } xtregs_cp4_t
+ __attribute__ ((aligned (XCHAL_CP4_SA_ALIGN)));
+typedef struct { XCHAL_CP5_SA_LIST(2) } xtregs_cp5_t
+ __attribute__ ((aligned (XCHAL_CP5_SA_ALIGN)));
+typedef struct { XCHAL_CP6_SA_LIST(2) } xtregs_cp6_t
+ __attribute__ ((aligned (XCHAL_CP6_SA_ALIGN)));
+typedef struct { XCHAL_CP7_SA_LIST(2) } xtregs_cp7_t
+ __attribute__ ((aligned (XCHAL_CP7_SA_ALIGN)));
+
+extern struct thread_info* coprocessor_owner[XCHAL_CP_MAX];
+extern void coprocessor_save(void*, int);
+extern void coprocessor_load(void*, int);
+extern void coprocessor_flush(struct thread_info*, int);
+extern void coprocessor_restore(struct thread_info*, int);
+
+extern void coprocessor_release_all(struct thread_info*);
+extern void coprocessor_flush_all(struct thread_info*);
+
+static inline void coprocessor_clear_cpenable(void)
+{
+ unsigned long i = 0;
+ WSR_CPENABLE(i);
+}
+
+#endif /* XTENSA_HAVE_COPROCESSORS */
#endif /* !__ASSEMBLY__ */
-
-
#endif /* _XTENSA_COPROCESSOR_H */
diff --git a/include/asm-xtensa/elf.h b/include/asm-xtensa/elf.h
index 4673845..ca6e510 100644
--- a/include/asm-xtensa/elf.h
+++ b/include/asm-xtensa/elf.h
@@ -72,115 +72,32 @@
/* ELF register definitions. This is needed for core dump support. */
-/*
- * elf_gregset_t contains the application-level state in the following order:
- * Processor info: config_version, cpuxy
- * Processor state: pc, ps, exccause, excvaddr, wb, ws,
- * lbeg, lend, lcount, sar
- * GP regs: ar0 - arXX
- */
-
typedef unsigned long elf_greg_t;
typedef struct {
- elf_greg_t xchal_config_id0;
- elf_greg_t xchal_config_id1;
- elf_greg_t cpux;
- elf_greg_t cpuy;
elf_greg_t pc;
elf_greg_t ps;
- elf_greg_t exccause;
- elf_greg_t excvaddr;
- elf_greg_t windowbase;
- elf_greg_t windowstart;
elf_greg_t lbeg;
elf_greg_t lend;
elf_greg_t lcount;
elf_greg_t sar;
- elf_greg_t syscall;
- elf_greg_t ar[64];
+ elf_greg_t windowstart;
+ elf_greg_t windowbase;
+ elf_greg_t reserved[8+48];
+ elf_greg_t a[64];
} xtensa_gregset_t;
#define ELF_NGREG (sizeof(xtensa_gregset_t) / sizeof(elf_greg_t))
typedef elf_greg_t elf_gregset_t[ELF_NGREG];
-/*
- * Compute the size of the coprocessor and extra state layout (register info)
- * table (in bytes).
- * This is actually the maximum size of the table, as opposed to the size,
- * which is available from the _xtensa_reginfo_table_size global variable.
- *
- * (See also arch/xtensa/kernel/coprocessor.S)
- *
- */
-
-#ifndef XCHAL_EXTRA_SA_CONTENTS_LIBDB_NUM
-# define XTENSA_CPE_LTABLE_SIZE 0
-#else
-# define XTENSA_CPE_SEGMENT(num) (num ? (1+num) : 0)
-# define XTENSA_CPE_LTABLE_ENTRIES \
- ( XTENSA_CPE_SEGMENT(XCHAL_EXTRA_SA_CONTENTS_LIBDB_NUM) \
- + XTENSA_CPE_SEGMENT(XCHAL_CP0_SA_CONTENTS_LIBDB_NUM) \
- + XTENSA_CPE_SEGMENT(XCHAL_CP1_SA_CONTENTS_LIBDB_NUM) \
- + XTENSA_CPE_SEGMENT(XCHAL_CP2_SA_CONTENTS_LIBDB_NUM) \
- + XTENSA_CPE_SEGMENT(XCHAL_CP3_SA_CONTENTS_LIBDB_NUM) \
- + XTENSA_CPE_SEGMENT(XCHAL_CP4_SA_CONTENTS_LIBDB_NUM) \
- + XTENSA_CPE_SEGMENT(XCHAL_CP5_SA_CONTENTS_LIBDB_NUM) \
- + XTENSA_CPE_SEGMENT(XCHAL_CP6_SA_CONTENTS_LIBDB_NUM) \
- + XTENSA_CPE_SEGMENT(XCHAL_CP7_SA_CONTENTS_LIBDB_NUM) \
- + 1 /* final entry */ \
- )
-# define XTENSA_CPE_LTABLE_SIZE (XTENSA_CPE_LTABLE_ENTRIES * 8)
-#endif
-
-
-/*
- * Instantiations of the elf_fpregset_t type contain, in most
- * architectures, the floating point (FPU) register set.
- * For Xtensa, this type is extended to contain all custom state,
- * ie. coprocessor and "extra" (non-coprocessor) state (including,
- * for example, TIE-defined states and register files; as well
- * as other optional processor state).
- * This includes FPU state if a floating-point coprocessor happens
- * to have been configured within the Xtensa processor.
- *
- * TOTAL_FPREGS_SIZE is the required size (without rounding)
- * of elf_fpregset_t. It provides space for the following:
- *
- * a) 32-bit mask of active coprocessors for this task (similar
- * to CPENABLE in single-threaded Xtensa processor systems)
- *
- * b) table describing the layout of custom states (ie. of
- * individual registers, etc) within the save areas
- *
- * c) save areas for each coprocessor and for non-coprocessor
- * ("extra") state
- *
- * Note that save areas may require up to 16-byte alignment when
- * accessed by save/restore sequences. We do not need to ensure
- * such alignment in an elf_fpregset_t structure because custom
- * state is not directly loaded/stored into it; rather, save area
- * contents are copied to elf_fpregset_t from the active save areas
- * (see 'struct task_struct' definition in processor.h for that)
- * using memcpy(). But we do allow space for such alignment,
- * to allow optimizations of layout and copying.
- */
-#if 0
-#define TOTAL_FPREGS_SIZE \
- (4 + XTENSA_CPE_LTABLE_SIZE + XTENSA_CP_EXTRA_SIZE)
-#define ELF_NFPREG \
- ((TOTAL_FPREGS_SIZE + sizeof(elf_fpreg_t) - 1) / sizeof(elf_fpreg_t))
-#else
-#define TOTAL_FPREGS_SIZE 0
-#define ELF_NFPREG 0
-#endif
+#define ELF_NFPREG 18
typedef unsigned int elf_fpreg_t;
typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
#define ELF_CORE_COPY_REGS(_eregs, _pregs) \
- xtensa_elf_core_copy_regs (&_eregs, _pregs);
+ xtensa_elf_core_copy_regs ((xtensa_gregset_t*)&(_eregs), _pregs);
extern void xtensa_elf_core_copy_regs (xtensa_gregset_t *, struct pt_regs *);
@@ -257,6 +174,21 @@
_r->areg[12]=0; _r->areg[13]=0; _r->areg[14]=0; _r->areg[15]=0; \
} while (0)
+typedef struct {
+ xtregs_opt_t opt;
+ xtregs_user_t user;
+#if XTENSA_HAVE_COPROCESSORS
+ xtregs_cp0_t cp0;
+ xtregs_cp1_t cp1;
+ xtregs_cp2_t cp2;
+ xtregs_cp3_t cp3;
+ xtregs_cp4_t cp4;
+ xtregs_cp5_t cp5;
+ xtregs_cp6_t cp6;
+ xtregs_cp7_t cp7;
+#endif
+} elf_xtregs_t;
+
#define SET_PERSONALITY(ex, ibcs2) set_personality(PER_LINUX_32BIT)
struct task_struct;
diff --git a/include/asm-xtensa/module.h b/include/asm-xtensa/module.h
index ffb25bf..d9b34be 100644
--- a/include/asm-xtensa/module.h
+++ b/include/asm-xtensa/module.h
@@ -15,9 +15,11 @@
struct mod_arch_specific
{
- /* Module support is not completely implemented. */
+ /* No special elements, yet. */
};
+#define MODULE_ARCH_VERMAGIC "xtensa-" __stringify(XCHAL_CORE_ID) " "
+
#define Elf_Shdr Elf32_Shdr
#define Elf_Sym Elf32_Sym
#define Elf_Ehdr Elf32_Ehdr
diff --git a/include/asm-xtensa/pgalloc.h b/include/asm-xtensa/pgalloc.h
index 8d1544e..4f4a798 100644
--- a/include/asm-xtensa/pgalloc.h
+++ b/include/asm-xtensa/pgalloc.h
@@ -47,7 +47,7 @@
return kmem_cache_alloc(pgtable_cache, GFP_KERNEL|__GFP_REPEAT);
}
-static inline pte_token_t pte_alloc_one(struct mm_struct *mm,
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
unsigned long addr)
{
struct page *page;
diff --git a/include/asm-xtensa/pgtable.h b/include/asm-xtensa/pgtable.h
index c0fcc1c..c8b024a 100644
--- a/include/asm-xtensa/pgtable.h
+++ b/include/asm-xtensa/pgtable.h
@@ -66,11 +66,9 @@
*/
#define VMALLOC_START 0xC0000000
-#define VMALLOC_END 0xC6FEFFFF
-#define TLBTEMP_BASE_1 0xC6FF0000
-#define TLBTEMP_BASE_2 0xC6FF8000
-#define MODULE_START 0xC7000000
-#define MODULE_END 0xC7FFFFFF
+#define VMALLOC_END 0xC7FEFFFF
+#define TLBTEMP_BASE_1 0xC7FF0000
+#define TLBTEMP_BASE_2 0xC7FF8000
/*
* Xtensa Linux config PTE layout (when present):
diff --git a/include/asm-xtensa/processor.h b/include/asm-xtensa/processor.h
index 96408f4..4918a4e 100644
--- a/include/asm-xtensa/processor.h
+++ b/include/asm-xtensa/processor.h
@@ -103,10 +103,6 @@
unsigned long dbreaka[XCHAL_NUM_DBREAK];
unsigned long dbreakc[XCHAL_NUM_DBREAK];
- /* Allocate storage for extra state and coprocessor state. */
- unsigned char cp_save[XTENSA_CP_EXTRA_SIZE]
- __attribute__ ((aligned(XTENSA_CP_EXTRA_ALIGN)));
-
/* Make structure 16 bytes aligned. */
int align[0] __attribute__ ((aligned(16)));
};
@@ -162,21 +158,16 @@
struct task_struct;
struct mm_struct;
-// FIXME: do we need release_thread for CP??
/* Free all resources held by a thread. */
#define release_thread(thread) do { } while(0)
-// FIXME: do we need prepare_to_copy (lazy status) for CP??
/* Prepare to copy thread state - unlazy all lazy status */
-#define prepare_to_copy(tsk) do { } while (0)
+extern void prepare_to_copy(struct task_struct*);
-/*
- * create a kernel thread without removing it from tasklists
- */
+/* Create a kernel thread without removing it from tasklists */
extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags);
/* Copy and release all segment info associated with a VM */
-
#define copy_segments(p, mm) do { } while(0)
#define release_segments(mm) do { } while(0)
#define forget_segments() do { } while (0)
diff --git a/include/asm-xtensa/ptrace.h b/include/asm-xtensa/ptrace.h
index 77ff02d..422c73e 100644
--- a/include/asm-xtensa/ptrace.h
+++ b/include/asm-xtensa/ptrace.h
@@ -53,33 +53,30 @@
/* Registers used by strace */
-#define REG_A_BASE 0xfc000000
-#define REG_AR_BASE 0x04000000
-#define REG_PC 0x14000000
-#define REG_PS 0x080000e6
-#define REG_WB 0x08000048
-#define REG_WS 0x08000049
-#define REG_LBEG 0x08000000
-#define REG_LEND 0x08000001
-#define REG_LCOUNT 0x08000002
-#define REG_SAR 0x08000003
-#define REG_DEPC 0x080000c0
-#define REG_EXCCAUSE 0x080000e8
-#define REG_EXCVADDR 0x080000ee
-#define SYSCALL_NR 0x1
+#define REG_A_BASE 0x0000
+#define REG_AR_BASE 0x0100
+#define REG_PC 0x0020
+#define REG_PS 0x02e6
+#define REG_WB 0x0248
+#define REG_WS 0x0249
+#define REG_LBEG 0x0200
+#define REG_LEND 0x0201
+#define REG_LCOUNT 0x0202
+#define REG_SAR 0x0203
-#define AR_REGNO_TO_A_REGNO(ar, wb) (ar - wb*4) & ~(XCHAL_NUM_AREGS - 1)
+#define SYSCALL_NR 0x00ff
/* Other PTRACE_ values defined in <linux/ptrace.h> using values 0-9,16,17,24 */
-#define PTRACE_GETREGS 12
-#define PTRACE_SETREGS 13
-#define PTRACE_GETFPREGS 14
-#define PTRACE_SETFPREGS 15
-#define PTRACE_GETFPREGSIZE 18
+#define PTRACE_GETREGS 12
+#define PTRACE_SETREGS 13
+#define PTRACE_GETXTREGS 18
+#define PTRACE_SETXTREGS 19
#ifndef __ASSEMBLY__
+#ifdef __KERNEL__
+
/*
* This struct defines the way the registers are stored on the
* kernel stack during a system call or other kernel entry.
@@ -102,6 +99,9 @@
unsigned long icountlevel; /* 60 */
int reserved[1]; /* 64 */
+ /* Additional configurable registers that are used by the compiler. */
+ xtregs_opt_t xtregs_opt;
+
/* Make sure the areg field is 16 bytes aligned. */
int align[0] __attribute__ ((aligned(16)));
@@ -111,8 +111,6 @@
unsigned long areg[16]; /* 128 (64) */
};
-#ifdef __KERNEL__
-
#include <asm/variant/core.h>
# define task_pt_regs(tsk) ((struct pt_regs*) \
diff --git a/include/asm-xtensa/regs.h b/include/asm-xtensa/regs.h
index c913d25..d4baed2 100644
--- a/include/asm-xtensa/regs.h
+++ b/include/asm-xtensa/regs.h
@@ -100,7 +100,14 @@
#define EXCCAUSE_DTLB_SIZE_RESTRICTION 27
#define EXCCAUSE_LOAD_CACHE_ATTRIBUTE 28
#define EXCCAUSE_STORE_CACHE_ATTRIBUTE 29
-#define EXCCAUSE_FLOATING_POINT 40
+#define EXCCAUSE_COPROCESSOR0_DISABLED 32
+#define EXCCAUSE_COPROCESSOR1_DISABLED 33
+#define EXCCAUSE_COPROCESSOR2_DISABLED 34
+#define EXCCAUSE_COPROCESSOR3_DISABLED 35
+#define EXCCAUSE_COPROCESSOR4_DISABLED 36
+#define EXCCAUSE_COPROCESSOR5_DISABLED 37
+#define EXCCAUSE_COPROCESSOR6_DISABLED 38
+#define EXCCAUSE_COPROCESSOR7_DISABLED 39
/* PS register fields. */
diff --git a/include/asm-xtensa/sigcontext.h b/include/asm-xtensa/sigcontext.h
index e3381ce..03383af 100644
--- a/include/asm-xtensa/sigcontext.h
+++ b/include/asm-xtensa/sigcontext.h
@@ -13,9 +13,6 @@
struct sigcontext {
- unsigned long oldmask;
-
- /* CPU registers */
unsigned long sc_pc;
unsigned long sc_ps;
unsigned long sc_lbeg;
@@ -25,6 +22,7 @@
unsigned long sc_acclo;
unsigned long sc_acchi;
unsigned long sc_a[16];
+ void *sc_xtregs;
};
#endif /* _XTENSA_SIGCONTEXT_H */
diff --git a/include/asm-xtensa/stat.h b/include/asm-xtensa/stat.h
index 149f4bc..c499203 100644
--- a/include/asm-xtensa/stat.h
+++ b/include/asm-xtensa/stat.h
@@ -5,25 +5,23 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (C) 2001 - 2005 Tensilica Inc.
+ * Copyright (C) 2001 - 2007 Tensilica Inc.
*/
#ifndef _XTENSA_STAT_H
#define _XTENSA_STAT_H
-#include <linux/types.h>
-
#define STAT_HAVE_NSEC 1
struct stat {
unsigned long st_dev;
- ino_t st_ino;
- mode_t st_mode;
- nlink_t st_nlink;
- uid_t st_uid;
- gid_t st_gid;
- unsigned int st_rdev;
- off_t st_size;
+ unsigned long st_ino;
+ unsigned int st_mode;
+ unsigned int st_nlink;
+ unsigned int st_uid;
+ unsigned int st_gid;
+ unsigned long st_rdev;
+ long st_size;
unsigned long st_blksize;
unsigned long st_blocks;
unsigned long st_atime;
@@ -36,8 +34,6 @@
unsigned long __unused5;
};
-/* This matches struct stat64 in glibc-2.3 */
-
struct stat64 {
unsigned long long st_dev; /* Device */
unsigned long long st_ino; /* File serial number */
@@ -47,20 +43,14 @@
unsigned int st_gid; /* Group ID of the file's group. */
unsigned long long st_rdev; /* Device number, if device. */
long long st_size; /* Size of file, in bytes. */
- long st_blksize; /* Optimal block size for I/O. */
+ unsigned long st_blksize; /* Optimal block size for I/O. */
unsigned long __unused2;
-#ifdef __XTENSA_EB__
- unsigned long __unused3;
- long st_blocks; /* Number 512-byte blocks allocated. */
-#else
- long st_blocks; /* Number 512-byte blocks allocated. */
- unsigned long __unused3;
-#endif
- long st_atime; /* Time of last access. */
+ unsigned long long st_blocks; /* Number 512-byte blocks allocated. */
+ unsigned long st_atime; /* Time of last access. */
unsigned long st_atime_nsec;
- long st_mtime; /* Time of last modification. */
+ unsigned long st_mtime; /* Time of last modification. */
unsigned long st_mtime_nsec;
- long st_ctime; /* Time of last status change. */
+ unsigned long st_ctime; /* Time of last status change. */
unsigned long st_ctime_nsec;
unsigned long __unused4;
unsigned long __unused5;
diff --git a/include/asm-xtensa/system.h b/include/asm-xtensa/system.h
index e0cb911..62b1e8f 100644
--- a/include/asm-xtensa/system.h
+++ b/include/asm-xtensa/system.h
@@ -46,42 +46,6 @@
return flags & 0xf;
}
-#define RSR_CPENABLE(x) do { \
- __asm__ __volatile__("rsr %0," __stringify(CPENABLE) : "=a" (x)); \
- } while(0);
-#define WSR_CPENABLE(x) do { \
- __asm__ __volatile__("wsr %0," __stringify(CPENABLE)";rsync" \
- :: "a" (x));} while(0);
-
-#define clear_cpenable() __clear_cpenable()
-
-static inline void __clear_cpenable(void)
-{
-#if XCHAL_HAVE_CP
- unsigned long i = 0;
- WSR_CPENABLE(i);
-#endif
-}
-
-static inline void enable_coprocessor(int i)
-{
-#if XCHAL_HAVE_CP
- int cp;
- RSR_CPENABLE(cp);
- cp |= 1 << i;
- WSR_CPENABLE(cp);
-#endif
-}
-
-static inline void disable_coprocessor(int i)
-{
-#if XCHAL_HAVE_CP
- int cp;
- RSR_CPENABLE(cp);
- cp &= ~(1 << i);
- WSR_CPENABLE(cp);
-#endif
-}
#define smp_read_barrier_depends() do { } while(0)
#define read_barrier_depends() do { } while(0)
@@ -111,7 +75,6 @@
#define switch_to(prev,next,last) \
do { \
- clear_cpenable(); \
(last) = _switch_to(prev, next); \
} while(0)
@@ -244,7 +207,7 @@
"wsr a13," __stringify(SAR) "\n\t"
"wsr a14," __stringify(PS) "\n\t"
:: "a" (&a0), "a" (&ps)
- : "a2", "a3", "a12", "a13", "a14", "a15", "memory");
+ : "a2", "a3", "a4", "a7", "a11", "a12", "a13", "a14", "a15", "memory");
}
#define arch_align_stack(x) (x)
diff --git a/include/asm-xtensa/thread_info.h b/include/asm-xtensa/thread_info.h
index 52c9582..a2c6406 100644
--- a/include/asm-xtensa/thread_info.h
+++ b/include/asm-xtensa/thread_info.h
@@ -27,6 +27,21 @@
#ifndef __ASSEMBLY__
+#if XTENSA_HAVE_COPROCESSORS
+
+typedef struct xtregs_coprocessor {
+ xtregs_cp0_t cp0;
+ xtregs_cp1_t cp1;
+ xtregs_cp2_t cp2;
+ xtregs_cp3_t cp3;
+ xtregs_cp4_t cp4;
+ xtregs_cp5_t cp5;
+ xtregs_cp6_t cp6;
+ xtregs_cp7_t cp7;
+} xtregs_coprocessor_t;
+
+#endif
+
struct thread_info {
struct task_struct *task; /* main task structure */
struct exec_domain *exec_domain; /* execution domain */
@@ -38,7 +53,13 @@
mm_segment_t addr_limit; /* thread address space */
struct restart_block restart_block;
+ unsigned long cpenable;
+ /* Allocate storage for extra user states and coprocessor states. */
+#if XTENSA_HAVE_COPROCESSORS
+ xtregs_coprocessor_t xtregs_cp;
+#endif
+ xtregs_user_t xtregs_user;
};
#else /* !__ASSEMBLY__ */
diff --git a/include/asm-xtensa/timex.h b/include/asm-xtensa/timex.h
index a5fca59..b83a818 100644
--- a/include/asm-xtensa/timex.h
+++ b/include/asm-xtensa/timex.h
@@ -63,10 +63,10 @@
* Register access.
*/
-#define WSR_CCOUNT(r) __asm__("wsr %0,"__stringify(CCOUNT) :: "a" (r))
-#define RSR_CCOUNT(r) __asm__("rsr %0,"__stringify(CCOUNT) : "=a" (r))
-#define WSR_CCOMPARE(x,r) __asm__("wsr %0,"__stringify(CCOMPARE)"+"__stringify(x) :: "a"(r))
-#define RSR_CCOMPARE(x,r) __asm__("rsr %0,"__stringify(CCOMPARE)"+"__stringify(x) : "=a"(r))
+#define WSR_CCOUNT(r) asm volatile ("wsr %0,"__stringify(CCOUNT) :: "a" (r))
+#define RSR_CCOUNT(r) asm volatile ("rsr %0,"__stringify(CCOUNT) : "=a" (r))
+#define WSR_CCOMPARE(x,r) asm volatile ("wsr %0,"__stringify(CCOMPARE)"+"__stringify(x) :: "a"(r))
+#define RSR_CCOMPARE(x,r) asm volatile ("rsr %0,"__stringify(CCOMPARE)"+"__stringify(x) : "=a"(r))
static inline unsigned long get_ccount (void)
{
diff --git a/include/asm-xtensa/uaccess.h b/include/asm-xtensa/uaccess.h
index d6352da0..b852842 100644
--- a/include/asm-xtensa/uaccess.h
+++ b/include/asm-xtensa/uaccess.h
@@ -26,6 +26,7 @@
#include <asm/current.h>
#include <asm/asm-offsets.h>
#include <asm/processor.h>
+#include <asm/types.h>
/*
* These assembly macros mirror the C macros that follow below. They
@@ -118,7 +119,7 @@
* <at> destroyed (actually, (TASK_SIZE + 1 - size))
*/
.macro user_ok aa, as, at, error
- movi \at, (TASK_SIZE+1)
+ movi \at, __XTENSA_UL_CONST(TASK_SIZE)
bgeu \as, \at, \error
sub \at, \at, \as
bgeu \aa, \at, \error
@@ -226,20 +227,21 @@
__pu_err; \
})
-#define __put_user_size(x,ptr,size,retval) \
-do { \
- retval = 0; \
- switch (size) { \
- case 1: __put_user_asm(x,ptr,retval,1,"s8i"); break; \
- case 2: __put_user_asm(x,ptr,retval,2,"s16i"); break; \
- case 4: __put_user_asm(x,ptr,retval,4,"s32i"); break; \
- case 8: { \
- __typeof__(*ptr) __v64 = x; \
- retval = __copy_to_user(ptr,&__v64,8); \
- break; \
- } \
- default: __put_user_bad(); \
- } \
+#define __put_user_size(x,ptr,size,retval) \
+do { \
+ int __cb; \
+ retval = 0; \
+ switch (size) { \
+ case 1: __put_user_asm(x,ptr,retval,1,"s8i",__cb); break; \
+ case 2: __put_user_asm(x,ptr,retval,2,"s16i",__cb); break; \
+ case 4: __put_user_asm(x,ptr,retval,4,"s32i",__cb); break; \
+ case 8: { \
+ __typeof__(*ptr) __v64 = x; \
+ retval = __copy_to_user(ptr,&__v64,8); \
+ break; \
+ } \
+ default: __put_user_bad(); \
+ } \
} while (0)
@@ -267,14 +269,14 @@
#define __check_align_1 ""
#define __check_align_2 \
- " _bbci.l %2, 0, 1f \n" \
- " movi %0, %3 \n" \
+ " _bbci.l %3, 0, 1f \n" \
+ " movi %0, %4 \n" \
" _j 2f \n"
#define __check_align_4 \
- " _bbsi.l %2, 0, 0f \n" \
- " _bbci.l %2, 1, 1f \n" \
- "0: movi %0, %3 \n" \
+ " _bbsi.l %3, 0, 0f \n" \
+ " _bbci.l %3, 1, 1f \n" \
+ "0: movi %0, %4 \n" \
" _j 2f \n"
@@ -286,24 +288,24 @@
* WARNING: If you modify this macro at all, verify that the
* __check_align_* macros still work.
*/
-#define __put_user_asm(x, addr, err, align, insn) \
- __asm__ __volatile__( \
- __check_align_##align \
- "1: "insn" %1, %2, 0 \n" \
- "2: \n" \
- " .section .fixup,\"ax\" \n" \
- " .align 4 \n" \
- "4: \n" \
- " .long 2b \n" \
- "5: \n" \
- " l32r %2, 4b \n" \
- " movi %0, %3 \n" \
- " jx %2 \n" \
- " .previous \n" \
- " .section __ex_table,\"a\" \n" \
- " .long 1b, 5b \n" \
- " .previous" \
- :"=r" (err) \
+#define __put_user_asm(x, addr, err, align, insn, cb) \
+ __asm__ __volatile__( \
+ __check_align_##align \
+ "1: "insn" %2, %3, 0 \n" \
+ "2: \n" \
+ " .section .fixup,\"ax\" \n" \
+ " .align 4 \n" \
+ "4: \n" \
+ " .long 2b \n" \
+ "5: \n" \
+ " l32r %1, 4b \n" \
+ " movi %0, %4 \n" \
+ " jx %1 \n" \
+ " .previous \n" \
+ " .section __ex_table,\"a\" \n" \
+ " .long 1b, 5b \n" \
+ " .previous" \
+ :"=r" (err), "=r" (cb) \
:"r" ((int)(x)), "r" (addr), "i" (-EFAULT), "0" (err))
#define __get_user_nocheck(x,ptr,size) \
@@ -328,11 +330,12 @@
#define __get_user_size(x,ptr,size,retval) \
do { \
+ int __cb; \
retval = 0; \
switch (size) { \
- case 1: __get_user_asm(x,ptr,retval,1,"l8ui"); break; \
- case 2: __get_user_asm(x,ptr,retval,2,"l16ui"); break; \
- case 4: __get_user_asm(x,ptr,retval,4,"l32i"); break; \
+ case 1: __get_user_asm(x,ptr,retval,1,"l8ui",__cb); break; \
+ case 2: __get_user_asm(x,ptr,retval,2,"l16ui",__cb); break; \
+ case 4: __get_user_asm(x,ptr,retval,4,"l32i",__cb); break; \
case 8: retval = __copy_from_user(&x,ptr,8); break; \
default: (x) = __get_user_bad(); \
} \
@@ -343,25 +346,25 @@
* WARNING: If you modify this macro at all, verify that the
* __check_align_* macros still work.
*/
-#define __get_user_asm(x, addr, err, align, insn) \
+#define __get_user_asm(x, addr, err, align, insn, cb) \
__asm__ __volatile__( \
__check_align_##align \
- "1: "insn" %1, %2, 0 \n" \
+ "1: "insn" %2, %3, 0 \n" \
"2: \n" \
" .section .fixup,\"ax\" \n" \
" .align 4 \n" \
"4: \n" \
" .long 2b \n" \
"5: \n" \
- " l32r %2, 4b \n" \
- " movi %1, 0 \n" \
- " movi %0, %3 \n" \
- " jx %2 \n" \
+ " l32r %1, 4b \n" \
+ " movi %2, 0 \n" \
+ " movi %0, %4 \n" \
+ " jx %1 \n" \
" .previous \n" \
" .section __ex_table,\"a\" \n" \
" .long 1b, 5b \n" \
" .previous" \
- :"=r" (err), "=r" (x) \
+ :"=r" (err), "=r" (cb), "=r" (x) \
:"r" (addr), "i" (-EFAULT), "0" (err))
diff --git a/include/asm-xtensa/variant-fsf/tie-asm.h b/include/asm-xtensa/variant-fsf/tie-asm.h
new file mode 100644
index 0000000..68a73bf
--- /dev/null
+++ b/include/asm-xtensa/variant-fsf/tie-asm.h
@@ -0,0 +1,70 @@
+/*
+ * This header file contains assembly-language definitions (assembly
+ * macros, etc.) for this specific Xtensa processor's TIE extensions
+ * and options. It is customized to this Xtensa processor configuration.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1999-2008 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_CORE_TIE_ASM_H
+#define _XTENSA_CORE_TIE_ASM_H
+
+/* Selection parameter values for save-area save/restore macros: */
+/* Option vs. TIE: */
+#define XTHAL_SAS_TIE 0x0001 /* custom extension or coprocessor */
+#define XTHAL_SAS_OPT 0x0002 /* optional (and not a coprocessor) */
+/* Whether used automatically by compiler: */
+#define XTHAL_SAS_NOCC 0x0004 /* not used by compiler w/o special opts/code */
+#define XTHAL_SAS_CC 0x0008 /* used by compiler without special opts/code */
+/* ABI handling across function calls: */
+#define XTHAL_SAS_CALR 0x0010 /* caller-saved */
+#define XTHAL_SAS_CALE 0x0020 /* callee-saved */
+#define XTHAL_SAS_GLOB 0x0040 /* global across function calls (in thread) */
+/* Misc */
+#define XTHAL_SAS_ALL 0xFFFF /* include all default NCP contents */
+
+
+
+/* Macro to save all non-coprocessor (extra) custom TIE and optional state
+ * (not including zero-overhead loop registers).
+ * Save area ptr (clobbered): ptr (1 byte aligned)
+ * Scratch regs (clobbered): at1..at4 (only first XCHAL_NCP_NUM_ATMPS needed)
+ */
+ .macro xchal_ncp_store ptr at1 at2 at3 at4 continue=0 ofs=-1 select=XTHAL_SAS_ALL
+ xchal_sa_start \continue, \ofs
+ .ifeq (XTHAL_SAS_OPT | XTHAL_SAS_CC | XTHAL_SAS_GLOB) & ~\select
+ xchal_sa_align \ptr, 0, 1024-4, 4, 4
+ rur \at1, THREADPTR // threadptr option
+ s32i \at1, \ptr, .Lxchal_ofs_ + 0
+ .set .Lxchal_ofs_, .Lxchal_ofs_ + 4
+ .endif
+ .endm // xchal_ncp_store
+
+/* Macro to save all non-coprocessor (extra) custom TIE and optional state
+ * (not including zero-overhead loop registers).
+ * Save area ptr (clobbered): ptr (1 byte aligned)
+ * Scratch regs (clobbered): at1..at4 (only first XCHAL_NCP_NUM_ATMPS needed)
+ */
+ .macro xchal_ncp_load ptr at1 at2 at3 at4 continue=0 ofs=-1 select=XTHAL_SAS_ALL
+ xchal_sa_start \continue, \ofs
+ .ifeq (XTHAL_SAS_OPT | XTHAL_SAS_CC | XTHAL_SAS_GLOB) & ~\select
+ xchal_sa_align \ptr, 0, 1024-4, 4, 4
+ l32i \at1, \ptr, .Lxchal_ofs_ + 0
+ wur \at1, THREADPTR // threadptr option
+ .set .Lxchal_ofs_, .Lxchal_ofs_ + 4
+ .endif
+ .endm // xchal_ncp_load
+
+
+
+#define XCHAL_NCP_NUM_ATMPS 1
+
+
+#define XCHAL_SA_NUM_ATMPS 1
+
+#endif /*_XTENSA_CORE_TIE_ASM_H*/
+
diff --git a/include/asm-xtensa/variant-fsf/tie.h b/include/asm-xtensa/variant-fsf/tie.h
index a73c716..bf40201 100644
--- a/include/asm-xtensa/variant-fsf/tie.h
+++ b/include/asm-xtensa/variant-fsf/tie.h
@@ -1,22 +1,77 @@
/*
- * Xtensa processor core configuration information.
+ * This header file describes this specific Xtensa processor's TIE extensions
+ * that extend basic Xtensa core functionality. It is customized to this
+ * Xtensa processor configuration.
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (C) 1999-2006 Tensilica Inc.
+ * Copyright (C) 1999-2007 Tensilica Inc.
*/
-#ifndef XTENSA_TIE_H
-#define XTENSA_TIE_H
-
-/*----------------------------------------------------------------------
- COPROCESSORS and EXTRA STATE
- ----------------------------------------------------------------------*/
+#ifndef _XTENSA_CORE_TIE_H
+#define _XTENSA_CORE_TIE_H
#define XCHAL_CP_NUM 0 /* number of coprocessors */
-#define XCHAL_CP_MASK 0x00
+#define XCHAL_CP_MAX 0 /* max CP ID + 1 (0 if none) */
+#define XCHAL_CP_MASK 0x00 /* bitmask of all CPs by ID */
+#define XCHAL_CP_PORT_MASK 0x00 /* bitmask of only port CPs */
-#endif /*XTENSA_CONFIG_TIE_H*/
+/* Basic parameters of each coprocessor: */
+#define XCHAL_CP7_NAME "XTIOP"
+#define XCHAL_CP7_IDENT XTIOP
+#define XCHAL_CP7_SA_SIZE 0 /* size of state save area */
+#define XCHAL_CP7_SA_ALIGN 1 /* min alignment of save area */
+#define XCHAL_CP_ID_XTIOP 7 /* coprocessor ID (0..7) */
+
+/* Filler info for unassigned coprocessors, to simplify arrays etc: */
+#define XCHAL_NCP_SA_SIZE 0
+#define XCHAL_NCP_SA_ALIGN 1
+#define XCHAL_CP0_SA_SIZE 0
+#define XCHAL_CP0_SA_ALIGN 1
+#define XCHAL_CP1_SA_SIZE 0
+#define XCHAL_CP1_SA_ALIGN 1
+#define XCHAL_CP2_SA_SIZE 0
+#define XCHAL_CP2_SA_ALIGN 1
+#define XCHAL_CP3_SA_SIZE 0
+#define XCHAL_CP3_SA_ALIGN 1
+#define XCHAL_CP4_SA_SIZE 0
+#define XCHAL_CP4_SA_ALIGN 1
+#define XCHAL_CP5_SA_SIZE 0
+#define XCHAL_CP5_SA_ALIGN 1
+#define XCHAL_CP6_SA_SIZE 0
+#define XCHAL_CP6_SA_ALIGN 1
+
+/* Save area for non-coprocessor optional and custom (TIE) state: */
+#define XCHAL_NCP_SA_SIZE 0
+#define XCHAL_NCP_SA_ALIGN 1
+
+/* Total save area for optional and custom state (NCP + CPn): */
+#define XCHAL_TOTAL_SA_SIZE 0 /* with 16-byte align padding */
+#define XCHAL_TOTAL_SA_ALIGN 1 /* actual minimum alignment */
+
+#define XCHAL_NCP_SA_NUM 0
+#define XCHAL_NCP_SA_LIST(s)
+#define XCHAL_CP0_SA_NUM 0
+#define XCHAL_CP0_SA_LIST(s)
+#define XCHAL_CP1_SA_NUM 0
+#define XCHAL_CP1_SA_LIST(s)
+#define XCHAL_CP2_SA_NUM 0
+#define XCHAL_CP2_SA_LIST(s)
+#define XCHAL_CP3_SA_NUM 0
+#define XCHAL_CP3_SA_LIST(s)
+#define XCHAL_CP4_SA_NUM 0
+#define XCHAL_CP4_SA_LIST(s)
+#define XCHAL_CP5_SA_NUM 0
+#define XCHAL_CP5_SA_LIST(s)
+#define XCHAL_CP6_SA_NUM 0
+#define XCHAL_CP6_SA_LIST(s)
+#define XCHAL_CP7_SA_NUM 0
+#define XCHAL_CP7_SA_LIST(s)
+
+/* Byte length of instruction from its first nibble (op0 field), per FLIX. */
+#define XCHAL_OP0_FORMAT_LENGTHS 3,3,3,3,3,3,3,3,2,2,2,2,2,2,3,3
+
+#endif /*_XTENSA_CORE_TIE_H*/
diff --git a/include/linux/aio.h b/include/linux/aio.h
index a9931e2..0d0b7f6 100644
--- a/include/linux/aio.h
+++ b/include/linux/aio.h
@@ -105,7 +105,6 @@
wait_queue_t ki_wait;
loff_t ki_pos;
- atomic_t ki_bio_count; /* num bio used for this iocb */
void *private;
/* State that we remember to be able to restart/retry */
unsigned short ki_opcode;
diff --git a/include/linux/bio.h b/include/linux/bio.h
index 4da4413..4c59bdc 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -326,7 +326,6 @@
gfp_t);
extern void bio_set_pages_dirty(struct bio *bio);
extern void bio_check_pages_dirty(struct bio *bio);
-extern void bio_release_pages(struct bio *bio);
extern struct bio *bio_copy_user(struct request_queue *, unsigned long, unsigned int, int);
extern int bio_uncopy_user(struct bio *);
void zero_fill_bio(struct bio *bio);
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index e1888cc..6fe67d1 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -216,6 +216,7 @@
unsigned int cmd_len;
unsigned char cmd[BLK_MAX_CDB];
+ unsigned int raw_data_len;
unsigned int data_len;
unsigned int sense_len;
void *data;
@@ -258,6 +259,7 @@
typedef int (merge_bvec_fn) (struct request_queue *, struct bio *, struct bio_vec *);
typedef void (prepare_flush_fn) (struct request_queue *, struct request *);
typedef void (softirq_done_fn)(struct request *);
+typedef int (dma_drain_needed_fn)(struct request *);
enum blk_queue_state {
Queue_down,
@@ -294,6 +296,7 @@
merge_bvec_fn *merge_bvec_fn;
prepare_flush_fn *prepare_flush_fn;
softirq_done_fn *softirq_done_fn;
+ dma_drain_needed_fn *dma_drain_needed;
/*
* Dispatch queue sorting
@@ -698,8 +701,9 @@
extern void blk_queue_max_segment_size(struct request_queue *, unsigned int);
extern void blk_queue_hardsect_size(struct request_queue *, unsigned short);
extern void blk_queue_stack_limits(struct request_queue *t, struct request_queue *b);
-extern int blk_queue_dma_drain(struct request_queue *q, void *buf,
- unsigned int size);
+extern int blk_queue_dma_drain(struct request_queue *q,
+ dma_drain_needed_fn *dma_drain_needed,
+ void *buf, unsigned int size);
extern void blk_queue_segment_boundary(struct request_queue *, unsigned long);
extern void blk_queue_prep_rq(struct request_queue *, prep_rq_fn *pfn);
extern void blk_queue_merge_bvec(struct request_queue *, merge_bvec_fn *);
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 98ffb6e..b84b848 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1590,7 +1590,6 @@
extern void bd_forget(struct inode *inode);
extern void bdput(struct block_device *);
extern struct block_device *open_by_devnum(dev_t, unsigned);
-extern const struct address_space_operations def_blk_aops;
#else
static inline void bd_forget(struct inode *inode) {}
#endif
diff --git a/include/linux/if_ether.h b/include/linux/if_ether.h
index e157c13..42dc6a3 100644
--- a/include/linux/if_ether.h
+++ b/include/linux/if_ether.h
@@ -129,8 +129,7 @@
/*
* Display a 6 byte device address (MAC) in a readable format.
*/
-extern char *print_mac(char *buf, const unsigned char *addr);
-#define MAC_FMT "%02x:%02x:%02x:%02x:%02x:%02x"
+extern __pure char *print_mac(char *buf, const unsigned char *addr);
#define MAC_BUF_SIZE 18
#define DECLARE_MAC_BUF(var) char var[MAC_BUF_SIZE] __maybe_unused
diff --git a/include/linux/init.h b/include/linux/init.h
index a404a00..fb58c04 100644
--- a/include/linux/init.h
+++ b/include/linux/init.h
@@ -42,6 +42,7 @@
discard it in modules) */
#define __init __section(.init.text) __cold
#define __initdata __section(.init.data)
+#define __initconst __section(.init.rodata)
#define __exitdata __section(.exit.data)
#define __exit_call __used __section(.exitcall.exit)
@@ -106,6 +107,7 @@
#define __memexitconst __section(.memexit.rodata)
/* For assembly routines */
+#define __HEAD .section ".head.text","ax"
#define __INIT .section ".init.text","ax"
#define __FINIT .previous
diff --git a/include/linux/iocontext.h b/include/linux/iocontext.h
index 593b222..1b4ccf2 100644
--- a/include/linux/iocontext.h
+++ b/include/linux/iocontext.h
@@ -50,6 +50,7 @@
sector_t seek_mean;
struct list_head queue_list;
+ struct hlist_node cic_list;
void (*dtor)(struct io_context *); /* destructor */
void (*exit)(struct io_context *); /* called on task exit */
@@ -77,6 +78,7 @@
struct as_io_context *aic;
struct radix_tree_root radix_root;
+ struct hlist_head cic_list;
void *ioc_data;
};
diff --git a/include/linux/libata.h b/include/linux/libata.h
index bc5a8d0..2e098f9 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -278,7 +278,6 @@
/* size of buffer to pad xfers ending on unaligned boundaries */
ATA_DMA_PAD_SZ = 4,
- ATA_DMA_PAD_BUF_SZ = ATA_DMA_PAD_SZ * ATA_MAX_QUEUE,
/* ering size */
ATA_ERING_SIZE = 32,
@@ -457,24 +456,18 @@
unsigned long flags; /* ATA_QCFLAG_xxx */
unsigned int tag;
unsigned int n_elem;
- unsigned int mapped_n_elem;
int dma_dir;
- unsigned int pad_len;
unsigned int sect_size;
unsigned int nbytes;
- unsigned int raw_nbytes;
unsigned int curbytes;
struct scatterlist *cursg;
unsigned int cursg_ofs;
- struct scatterlist *last_sg;
- struct scatterlist saved_last_sg;
struct scatterlist sgent;
- struct scatterlist extra_sg[2];
struct scatterlist *sg;
@@ -619,9 +612,6 @@
struct ata_prd *prd; /* our SG list */
dma_addr_t prd_dma; /* and its DMA mapping */
- void *pad; /* array of DMA pad buffers */
- dma_addr_t pad_dma;
-
struct ata_ioports ioaddr; /* ATA cmd/ctl/dma register blocks */
u8 ctl; /* cache of ATA control register */
@@ -1363,12 +1353,9 @@
qc->flags = 0;
qc->cursg = NULL;
qc->cursg_ofs = 0;
- qc->nbytes = qc->raw_nbytes = qc->curbytes = 0;
+ qc->nbytes = qc->curbytes = 0;
qc->n_elem = 0;
- qc->mapped_n_elem = 0;
qc->err_mask = 0;
- qc->pad_len = 0;
- qc->last_sg = NULL;
qc->sect_size = ATA_SECT_SIZE;
ata_tf_init(qc->dev, &qc->tf);
@@ -1423,19 +1410,6 @@
return mask;
}
-static inline int ata_pad_alloc(struct ata_port *ap, struct device *dev)
-{
- ap->pad_dma = 0;
- ap->pad = dmam_alloc_coherent(dev, ATA_DMA_PAD_BUF_SZ,
- &ap->pad_dma, GFP_KERNEL);
- return (ap->pad == NULL) ? -ENOMEM : 0;
-}
-
-static inline void ata_pad_free(struct ata_port *ap, struct device *dev)
-{
- dmam_free_coherent(dev, ATA_DMA_PAD_BUF_SZ, ap->pad, ap->pad_dma);
-}
-
static inline struct ata_port *ata_shost_to_port(struct Scsi_Host *host)
{
return *(struct ata_port **)&host->hostdata[0];
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 412672a7..bbd8d00 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -232,6 +232,8 @@
* @mark: Generic packet mark
* @nfct: Associated connection, if any
* @ipvs_property: skbuff is owned by ipvs
+ * @peeked: this packet has been seen already, so stats have been
+ * done for it, don't do them again
* @nf_trace: netfilter packet trace flag
* @nfctinfo: Relationship of this skb to the connection
* @nfct_reasm: netfilter conntrack re-assembly pointer
diff --git a/include/net/sock.h b/include/net/sock.h
index 8a7889b..fd98760 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -180,6 +180,7 @@
* @sk_sndmsg_off: cached offset for sendmsg
* @sk_send_head: front of stuff to transmit
* @sk_security: used by security modules
+ * @sk_mark: generic packet mark
* @sk_write_pending: a write to stream socket waits to start
* @sk_state_change: callback to indicate change in the state of the sock
* @sk_data_ready: callback to indicate there is data to be processed
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index cc54c62..fdb3fbe 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -246,6 +246,17 @@
}
/*
+ * default shutdown function
+ */
+static void default_shutdown(unsigned int irq)
+{
+ struct irq_desc *desc = irq_desc + irq;
+
+ desc->chip->mask(irq);
+ desc->status |= IRQ_MASKED;
+}
+
+/*
* Fixup enable/disable function pointers
*/
void irq_chip_set_defaults(struct irq_chip *chip)
@@ -256,8 +267,15 @@
chip->disable = default_disable;
if (!chip->startup)
chip->startup = default_startup;
+ /*
+ * We use chip->disable, when the user provided its own. When
+ * we have default_disable set for chip->disable, then we need
+ * to use default_shutdown, otherwise the irq line is not
+ * disabled on free_irq():
+ */
if (!chip->shutdown)
- chip->shutdown = chip->disable;
+ chip->shutdown = chip->disable != default_disable ?
+ chip->disable : default_shutdown;
if (!chip->name)
chip->name = chip->typename;
if (!chip->end)
diff --git a/kernel/irq/spurious.c b/kernel/irq/spurious.c
index a6b2bc8..088dabb 100644
--- a/kernel/irq/spurious.c
+++ b/kernel/irq/spurious.c
@@ -6,6 +6,7 @@
* This file contains spurious interrupt handling.
*/
+#include <linux/jiffies.h>
#include <linux/irq.h>
#include <linux/module.h>
#include <linux/kallsyms.h>
@@ -179,7 +180,7 @@
* otherwise the couter becomes a doomsday timer for otherwise
* working systems
*/
- if (jiffies - desc->last_unhandled > HZ/10)
+ if (time_after(jiffies, desc->last_unhandled + HZ/10))
desc->irqs_unhandled = 1;
else
desc->irqs_unhandled++;
diff --git a/mm/slub.c b/mm/slub.c
index 4b3895c..74c65af 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -149,13 +149,6 @@
/* Enable to test recovery from slab corruption on boot */
#undef SLUB_RESILIENCY_TEST
-/*
- * Currently fastpath is not supported if preemption is enabled.
- */
-#if defined(CONFIG_FAST_CMPXCHG_LOCAL) && !defined(CONFIG_PREEMPT)
-#define SLUB_FASTPATH
-#endif
-
#if PAGE_SHIFT <= 12
/*
@@ -1514,11 +1507,7 @@
{
void **object;
struct page *new;
-#ifdef SLUB_FASTPATH
- unsigned long flags;
- local_irq_save(flags);
-#endif
if (!c->page)
goto new_slab;
@@ -1541,9 +1530,6 @@
unlock_out:
slab_unlock(c->page);
stat(c, ALLOC_SLOWPATH);
-#ifdef SLUB_FASTPATH
- local_irq_restore(flags);
-#endif
return object;
another_slab:
@@ -1575,9 +1561,7 @@
c->page = new;
goto load_freelist;
}
-#ifdef SLUB_FASTPATH
- local_irq_restore(flags);
-#endif
+
/*
* No memory available.
*
@@ -1619,34 +1603,6 @@
{
void **object;
struct kmem_cache_cpu *c;
-
-/*
- * The SLUB_FASTPATH path is provisional and is currently disabled if the
- * kernel is compiled with preemption or if the arch does not support
- * fast cmpxchg operations. There are a couple of coming changes that will
- * simplify matters and allow preemption. Ultimately we may end up making
- * SLUB_FASTPATH the default.
- *
- * 1. The introduction of the per cpu allocator will avoid array lookups
- * through get_cpu_slab(). A special register can be used instead.
- *
- * 2. The introduction of per cpu atomic operations (cpu_ops) means that
- * we can realize the logic here entirely with per cpu atomics. The
- * per cpu atomic ops will take care of the preemption issues.
- */
-
-#ifdef SLUB_FASTPATH
- c = get_cpu_slab(s, raw_smp_processor_id());
- do {
- object = c->freelist;
- if (unlikely(is_end(object) || !node_match(c, node))) {
- object = __slab_alloc(s, gfpflags, node, addr, c);
- break;
- }
- stat(c, ALLOC_FASTPATH);
- } while (cmpxchg_local(&c->freelist, object, object[c->offset])
- != object);
-#else
unsigned long flags;
local_irq_save(flags);
@@ -1661,7 +1617,6 @@
stat(c, ALLOC_FASTPATH);
}
local_irq_restore(flags);
-#endif
if (unlikely((gfpflags & __GFP_ZERO) && object))
memset(object, 0, c->objsize);
@@ -1698,11 +1653,6 @@
void **object = (void *)x;
struct kmem_cache_cpu *c;
-#ifdef SLUB_FASTPATH
- unsigned long flags;
-
- local_irq_save(flags);
-#endif
c = get_cpu_slab(s, raw_smp_processor_id());
stat(c, FREE_SLOWPATH);
slab_lock(page);
@@ -1734,9 +1684,6 @@
out_unlock:
slab_unlock(page);
-#ifdef SLUB_FASTPATH
- local_irq_restore(flags);
-#endif
return;
slab_empty:
@@ -1749,9 +1696,6 @@
}
slab_unlock(page);
stat(c, FREE_SLAB);
-#ifdef SLUB_FASTPATH
- local_irq_restore(flags);
-#endif
discard_slab(s, page);
return;
@@ -1777,34 +1721,6 @@
{
void **object = (void *)x;
struct kmem_cache_cpu *c;
-
-#ifdef SLUB_FASTPATH
- void **freelist;
-
- c = get_cpu_slab(s, raw_smp_processor_id());
- debug_check_no_locks_freed(object, s->objsize);
- do {
- freelist = c->freelist;
- barrier();
- /*
- * If the compiler would reorder the retrieval of c->page to
- * come before c->freelist then an interrupt could
- * change the cpu slab before we retrieve c->freelist. We
- * could be matching on a page no longer active and put the
- * object onto the freelist of the wrong slab.
- *
- * On the other hand: If we already have the freelist pointer
- * then any change of cpu_slab will cause the cmpxchg to fail
- * since the freelist pointers are unique per slab.
- */
- if (unlikely(page != c->page || c->node < 0)) {
- __slab_free(s, page, x, addr, c->offset);
- break;
- }
- object[c->offset] = freelist;
- stat(c, FREE_FASTPATH);
- } while (cmpxchg_local(&c->freelist, freelist, object) != freelist);
-#else
unsigned long flags;
local_irq_save(flags);
@@ -1818,7 +1734,6 @@
__slab_free(s, page, x, addr, c->offset);
local_irq_restore(flags);
-#endif
}
void kmem_cache_free(struct kmem_cache *s, void *x)
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index 77f04e4..fc60c6d 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -366,7 +366,8 @@
{
struct net_device_stats *stats = &dev->stats;
struct vlan_ethhdr *veth = (struct vlan_ethhdr *)(skb->data);
-
+ DECLARE_MAC_BUF(mac);
+ DECLARE_MAC_BUF(mac2);
/* Handle non-VLAN frames if they are sent to us, for example by DHCP.
*
* NOTE: THIS ASSUMES DIX ETHERNET, SPECIFICALLY NOT SUPPORTING
@@ -404,11 +405,8 @@
pr_debug("%s: about to send skb: %p to dev: %s\n",
__FUNCTION__, skb, skb->dev->name);
- pr_debug(" " MAC_FMT " " MAC_FMT " %4hx %4hx %4hx\n",
- veth->h_dest[0], veth->h_dest[1], veth->h_dest[2],
- veth->h_dest[3], veth->h_dest[4], veth->h_dest[5],
- veth->h_source[0], veth->h_source[1], veth->h_source[2],
- veth->h_source[3], veth->h_source[4], veth->h_source[5],
+ pr_debug(" %s %s %4hx %4hx %4hx\n",
+ print_mac(mac, veth->h_dest), print_mac(mac2, veth->h_source),
veth->h_vlan_proto, veth->h_vlan_TCI,
veth->h_vlan_encapsulated_proto);
diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c
index 0117b9f..9e3d81c 100644
--- a/net/9p/trans_virtio.c
+++ b/net/9p/trans_virtio.c
@@ -183,8 +183,7 @@
sg_set_buf(&sg[index++], data, s);
count -= s;
data += s;
- if (index > limit)
- BUG();
+ BUG_ON(index > limit);
}
return index-start;
diff --git a/net/ax25/ax25_out.c b/net/ax25/ax25_out.c
index 92b517a..bf706f8 100644
--- a/net/ax25/ax25_out.c
+++ b/net/ax25/ax25_out.c
@@ -117,6 +117,12 @@
unsigned char *p;
int frontlen, len, fragno, ka9qfrag, first = 1;
+ if (paclen < 16) {
+ WARN_ON_ONCE(1);
+ kfree_skb(skb);
+ return;
+ }
+
if ((skb->len - 1) > paclen) {
if (*skb->data == AX25_P_TEXT) {
skb_pull(skb, 1); /* skip PID */
@@ -251,8 +257,6 @@
if (start == end)
return;
- ax25->vs = start;
-
/*
* Transmit data until either we're out of data to send or
* the window is full. Send a poll on the final I frame if
@@ -261,8 +265,13 @@
/*
* Dequeue the frame and copy it.
+ * Check for race with ax25_clear_queues().
*/
skb = skb_dequeue(&ax25->write_queue);
+ if (!skb)
+ return;
+
+ ax25->vs = start;
do {
if ((skbn = skb_clone(skb, GFP_ATOMIC)) == NULL) {
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 5fc7be2..f888026 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -260,7 +260,6 @@
tasklet_enable(&hdev->tx_task);
skb_queue_purge(&conn->data_q);
hci_conn_del_sysfs(conn);
- hci_dev_put(hdev);
return 0;
}
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 372b0d3..930b58e 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -24,6 +24,7 @@
/* Bluetooth HCI core. */
+#include <linux/jiffies.h>
#include <linux/module.h>
#include <linux/kmod.h>
@@ -1321,7 +1322,7 @@
if (!test_bit(HCI_RAW, &hdev->flags)) {
/* ACL tx timeout must be longer than maximum
* link supervision timeout (40.9 seconds) */
- if (!hdev->acl_cnt && (jiffies - hdev->acl_last_tx) > (HZ * 45))
+ if (!hdev->acl_cnt && time_after(jiffies, hdev->acl_last_tx + HZ * 45))
hci_acl_tx_to(hdev);
}
@@ -1543,7 +1544,7 @@
BT_DBG("%s cmd %d", hdev->name, atomic_read(&hdev->cmd_cnt));
- if (!atomic_read(&hdev->cmd_cnt) && (jiffies - hdev->cmd_last_tx) > HZ) {
+ if (!atomic_read(&hdev->cmd_cnt) && time_after(jiffies, hdev->cmd_last_tx + HZ)) {
BT_ERR("%s command tx timeout", hdev->name);
atomic_set(&hdev->cmd_cnt, 1);
}
diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
index e13cf5e..84360c1 100644
--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -320,28 +320,34 @@
queue_work(btaddconn, &conn->work);
}
+/*
+ * The rfcomm tty device will possibly retain even when conn
+ * is down, and sysfs doesn't support move zombie device,
+ * so we should move the device before conn device is destroyed.
+ */
static int __match_tty(struct device *dev, void *data)
{
- /* The rfcomm tty device will possibly retain even when conn
- * is down, and sysfs doesn't support move zombie device,
- * so we should move the device before conn device is destroyed.
- * Due to the only child device of hci_conn dev is rfcomm
- * tty_dev, here just return 1
- */
- return 1;
+ return !strncmp(dev->bus_id, "rfcomm", 6);
}
static void del_conn(struct work_struct *work)
{
- struct device *dev;
struct hci_conn *conn = container_of(work, struct hci_conn, work);
+ struct hci_dev *hdev = conn->hdev;
- while (dev = device_find_child(&conn->dev, NULL, __match_tty)) {
+ while (1) {
+ struct device *dev;
+
+ dev = device_find_child(&conn->dev, NULL, __match_tty);
+ if (!dev)
+ break;
device_move(dev, NULL);
put_device(dev);
}
+
device_del(&conn->dev);
put_device(&conn->dev);
+ hci_dev_put(hdev);
}
void hci_conn_del_sysfs(struct hci_conn *conn)
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 7bb6a9a..a16cf1e 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -834,12 +834,18 @@
}
if (neigh->nud_state & (NUD_INCOMPLETE | NUD_PROBE)) {
struct sk_buff *skb = skb_peek(&neigh->arp_queue);
-
+ /* keep skb alive even if arp_queue overflows */
+ if (skb)
+ skb_get(skb);
+ write_unlock(&neigh->lock);
neigh->ops->solicit(neigh, skb);
atomic_inc(&neigh->probes);
- }
+ if (skb)
+ kfree_skb(skb);
+ } else {
out:
- write_unlock(&neigh->lock);
+ write_unlock(&neigh->lock);
+ }
if (notify)
neigh_update_notify(neigh);
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index ecb02af..61ac8d0 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -504,7 +504,7 @@
EXPORT_SYMBOL_GPL(rtnl_put_cacheinfo);
-static int set_operstate(struct net_device *dev, unsigned char transition, bool send_notification)
+static void set_operstate(struct net_device *dev, unsigned char transition)
{
unsigned char operstate = dev->operstate;
@@ -527,12 +527,8 @@
write_lock_bh(&dev_base_lock);
dev->operstate = operstate;
write_unlock_bh(&dev_base_lock);
-
- if (send_notification)
- netdev_state_change(dev);
- return 1;
- } else
- return 0;
+ netdev_state_change(dev);
+ }
}
static void copy_rtnl_link_stats(struct rtnl_link_stats *a,
@@ -826,7 +822,6 @@
if (tb[IFLA_BROADCAST]) {
nla_memcpy(dev->broadcast, tb[IFLA_BROADCAST], dev->addr_len);
send_addr_notify = 1;
- modified = 1;
}
if (ifm->ifi_flags || ifm->ifi_change) {
@@ -839,23 +834,16 @@
dev_change_flags(dev, flags);
}
- if (tb[IFLA_TXQLEN]) {
- if (dev->tx_queue_len != nla_get_u32(tb[IFLA_TXQLEN])) {
- dev->tx_queue_len = nla_get_u32(tb[IFLA_TXQLEN]);
- modified = 1;
- }
- }
+ if (tb[IFLA_TXQLEN])
+ dev->tx_queue_len = nla_get_u32(tb[IFLA_TXQLEN]);
if (tb[IFLA_OPERSTATE])
- modified |= set_operstate(dev, nla_get_u8(tb[IFLA_OPERSTATE]), false);
+ set_operstate(dev, nla_get_u8(tb[IFLA_OPERSTATE]));
if (tb[IFLA_LINKMODE]) {
- if (dev->link_mode != nla_get_u8(tb[IFLA_LINKMODE])) {
- write_lock_bh(&dev_base_lock);
- dev->link_mode = nla_get_u8(tb[IFLA_LINKMODE]);
- write_lock_bh(&dev_base_lock);
- modified = 1;
- }
+ write_lock_bh(&dev_base_lock);
+ dev->link_mode = nla_get_u8(tb[IFLA_LINKMODE]);
+ write_unlock_bh(&dev_base_lock);
}
err = 0;
@@ -869,10 +857,6 @@
if (send_addr_notify)
call_netdevice_notifiers(NETDEV_CHANGEADDR, dev);
-
- if (modified)
- netdev_state_change(dev);
-
return err;
}
@@ -990,7 +974,7 @@
if (tb[IFLA_TXQLEN])
dev->tx_queue_len = nla_get_u32(tb[IFLA_TXQLEN]);
if (tb[IFLA_OPERSTATE])
- set_operstate(dev, nla_get_u8(tb[IFLA_OPERSTATE]), true);
+ set_operstate(dev, nla_get_u8(tb[IFLA_OPERSTATE]));
if (tb[IFLA_LINKMODE])
dev->link_mode = nla_get_u8(tb[IFLA_LINKMODE]);
diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index c663fa5..8e17f65 100644
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -368,6 +368,7 @@
if (!(neigh->nud_state&NUD_VALID))
printk(KERN_DEBUG "trying to ucast probe in NUD_INVALID\n");
dst_ha = neigh->ha;
+ read_lock_bh(&neigh->lock);
} else if ((probes -= neigh->parms->app_probes) < 0) {
#ifdef CONFIG_ARPD
neigh_app_ns(neigh);
@@ -377,6 +378,8 @@
arp_send(ARPOP_REQUEST, ETH_P_ARP, target, dev, saddr,
dst_ha, dev->dev_addr, NULL);
+ if (dst_ha)
+ read_unlock_bh(&neigh->lock);
}
static int arp_ignore(struct in_device *in_dev, __be32 sip, __be32 tip)
diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
index a52b585..10013cc 100644
--- a/net/ipv4/ipconfig.c
+++ b/net/ipv4/ipconfig.c
@@ -1390,7 +1390,7 @@
* Clue in the operator.
*/
printk("IP-Config: Complete:");
- printk("\n device=%s", ic_dev->name);
+ printk("\n device=%s", ic_dev->name);
printk(", addr=%u.%u.%u.%u", NIPQUAD(ic_myaddr));
printk(", mask=%u.%u.%u.%u", NIPQUAD(ic_netmask));
printk(", gw=%u.%u.%u.%u", NIPQUAD(ic_gateway));
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 63414ea..00156bf 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -719,7 +719,7 @@
}
/*
- * Send a SYN-ACK after having received an ACK.
+ * Send a SYN-ACK after having received a SYN.
* This still operates on a request_sock only, not on a big
* socket.
*/
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index bddac0e..f0aa977 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -752,14 +752,6 @@
BUILD_BUG_ON(sizeof(struct inet6_skb_parm) > sizeof(dummy_skb->cb));
-#ifdef MODULE
-#if 0 /* FIXME --RR */
- if (!mod_member_present(&__this_module, can_unload))
- return -EINVAL;
-
- __this_module.can_unload = &ipv6_unload;
-#endif
-#endif
err = proto_register(&tcpv6_prot, 1);
if (err)
goto out;
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index f93407c..bab72b6 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -1151,7 +1151,7 @@
fn = fn->parent;
}
/* No more references are possible at this point. */
- if (atomic_read(&rt->rt6i_ref) != 1) BUG();
+ BUG_ON(atomic_read(&rt->rt6i_ref) != 1);
}
inet6_rt_notify(RTM_DELROUTE, rt, info);
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 9031e52..cd94064 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -550,6 +550,7 @@
ip_rt_put(rt);
goto out;
}
+ skb2->dst = (struct dst_entry *)rt;
} else {
ip_rt_put(rt);
if (ip_route_input(skb2, eiph->daddr, eiph->saddr, eiph->tos,
diff --git a/net/mac80211/ieee80211.c b/net/mac80211/ieee80211.c
index 67b7c75c..28bcdf9 100644
--- a/net/mac80211/ieee80211.c
+++ b/net/mac80211/ieee80211.c
@@ -165,6 +165,7 @@
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_if_init_conf conf;
int res;
+ bool need_hw_reconfig = 0;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
@@ -218,7 +219,7 @@
res = local->ops->start(local_to_hw(local));
if (res)
return res;
- ieee80211_hw_config(local);
+ need_hw_reconfig = 1;
ieee80211_led_radio(local, local->hw.conf.radio_enabled);
}
@@ -282,6 +283,8 @@
atomic_inc(&local->iff_promiscs);
local->open_count++;
+ if (need_hw_reconfig)
+ ieee80211_hw_config(local);
netif_start_queue(dev);
diff --git a/net/netlabel/netlabel_cipso_v4.c b/net/netlabel/netlabel_cipso_v4.c
index c7ad64d..fdc14a0 100644
--- a/net/netlabel/netlabel_cipso_v4.c
+++ b/net/netlabel/netlabel_cipso_v4.c
@@ -718,36 +718,35 @@
* NetLabel Generic NETLINK Command Definitions
*/
-static struct genl_ops netlbl_cipsov4_genl_c_add = {
+static struct genl_ops netlbl_cipsov4_ops[] = {
+ {
.cmd = NLBL_CIPSOV4_C_ADD,
.flags = GENL_ADMIN_PERM,
.policy = netlbl_cipsov4_genl_policy,
.doit = netlbl_cipsov4_add,
.dumpit = NULL,
-};
-
-static struct genl_ops netlbl_cipsov4_genl_c_remove = {
+ },
+ {
.cmd = NLBL_CIPSOV4_C_REMOVE,
.flags = GENL_ADMIN_PERM,
.policy = netlbl_cipsov4_genl_policy,
.doit = netlbl_cipsov4_remove,
.dumpit = NULL,
-};
-
-static struct genl_ops netlbl_cipsov4_genl_c_list = {
+ },
+ {
.cmd = NLBL_CIPSOV4_C_LIST,
.flags = 0,
.policy = netlbl_cipsov4_genl_policy,
.doit = netlbl_cipsov4_list,
.dumpit = NULL,
-};
-
-static struct genl_ops netlbl_cipsov4_genl_c_listall = {
+ },
+ {
.cmd = NLBL_CIPSOV4_C_LISTALL,
.flags = 0,
.policy = netlbl_cipsov4_genl_policy,
.doit = NULL,
.dumpit = netlbl_cipsov4_listall,
+ },
};
/*
@@ -762,30 +761,20 @@
* mechanism. Returns zero on success, negative values on failure.
*
*/
-int netlbl_cipsov4_genl_init(void)
+int __init netlbl_cipsov4_genl_init(void)
{
- int ret_val;
+ int ret_val, i;
ret_val = genl_register_family(&netlbl_cipsov4_gnl_family);
if (ret_val != 0)
return ret_val;
- ret_val = genl_register_ops(&netlbl_cipsov4_gnl_family,
- &netlbl_cipsov4_genl_c_add);
- if (ret_val != 0)
- return ret_val;
- ret_val = genl_register_ops(&netlbl_cipsov4_gnl_family,
- &netlbl_cipsov4_genl_c_remove);
- if (ret_val != 0)
- return ret_val;
- ret_val = genl_register_ops(&netlbl_cipsov4_gnl_family,
- &netlbl_cipsov4_genl_c_list);
- if (ret_val != 0)
- return ret_val;
- ret_val = genl_register_ops(&netlbl_cipsov4_gnl_family,
- &netlbl_cipsov4_genl_c_listall);
- if (ret_val != 0)
- return ret_val;
+ for (i = 0; i < ARRAY_SIZE(netlbl_cipsov4_ops); i++) {
+ ret_val = genl_register_ops(&netlbl_cipsov4_gnl_family,
+ &netlbl_cipsov4_ops[i]);
+ if (ret_val != 0)
+ return ret_val;
+ }
return 0;
}
diff --git a/net/netlabel/netlabel_domainhash.c b/net/netlabel/netlabel_domainhash.c
index fd46231..02c2f7c 100644
--- a/net/netlabel/netlabel_domainhash.c
+++ b/net/netlabel/netlabel_domainhash.c
@@ -171,7 +171,7 @@
* values on error.
*
*/
-int netlbl_domhsh_init(u32 size)
+int __init netlbl_domhsh_init(u32 size)
{
u32 iter;
struct netlbl_domhsh_tbl *hsh_tbl;
diff --git a/net/netlabel/netlabel_mgmt.c b/net/netlabel/netlabel_mgmt.c
index e2258dc..22c1912 100644
--- a/net/netlabel/netlabel_mgmt.c
+++ b/net/netlabel/netlabel_mgmt.c
@@ -517,68 +517,63 @@
* NetLabel Generic NETLINK Command Definitions
*/
-static struct genl_ops netlbl_mgmt_genl_c_add = {
+static struct genl_ops netlbl_mgmt_genl_ops[] = {
+ {
.cmd = NLBL_MGMT_C_ADD,
.flags = GENL_ADMIN_PERM,
.policy = netlbl_mgmt_genl_policy,
.doit = netlbl_mgmt_add,
.dumpit = NULL,
-};
-
-static struct genl_ops netlbl_mgmt_genl_c_remove = {
+ },
+ {
.cmd = NLBL_MGMT_C_REMOVE,
.flags = GENL_ADMIN_PERM,
.policy = netlbl_mgmt_genl_policy,
.doit = netlbl_mgmt_remove,
.dumpit = NULL,
-};
-
-static struct genl_ops netlbl_mgmt_genl_c_listall = {
+ },
+ {
.cmd = NLBL_MGMT_C_LISTALL,
.flags = 0,
.policy = netlbl_mgmt_genl_policy,
.doit = NULL,
.dumpit = netlbl_mgmt_listall,
-};
-
-static struct genl_ops netlbl_mgmt_genl_c_adddef = {
+ },
+ {
.cmd = NLBL_MGMT_C_ADDDEF,
.flags = GENL_ADMIN_PERM,
.policy = netlbl_mgmt_genl_policy,
.doit = netlbl_mgmt_adddef,
.dumpit = NULL,
-};
-
-static struct genl_ops netlbl_mgmt_genl_c_removedef = {
+ },
+ {
.cmd = NLBL_MGMT_C_REMOVEDEF,
.flags = GENL_ADMIN_PERM,
.policy = netlbl_mgmt_genl_policy,
.doit = netlbl_mgmt_removedef,
.dumpit = NULL,
-};
-
-static struct genl_ops netlbl_mgmt_genl_c_listdef = {
+ },
+ {
.cmd = NLBL_MGMT_C_LISTDEF,
.flags = 0,
.policy = netlbl_mgmt_genl_policy,
.doit = netlbl_mgmt_listdef,
.dumpit = NULL,
-};
-
-static struct genl_ops netlbl_mgmt_genl_c_protocols = {
+ },
+ {
.cmd = NLBL_MGMT_C_PROTOCOLS,
.flags = 0,
.policy = netlbl_mgmt_genl_policy,
.doit = NULL,
.dumpit = netlbl_mgmt_protocols,
-};
-
-static struct genl_ops netlbl_mgmt_genl_c_version = {
+ },
+ {
.cmd = NLBL_MGMT_C_VERSION,
.flags = 0,
.policy = netlbl_mgmt_genl_policy,
.doit = netlbl_mgmt_version,
.dumpit = NULL,
+ },
};
/*
@@ -593,46 +588,20 @@
* mechanism. Returns zero on success, negative values on failure.
*
*/
-int netlbl_mgmt_genl_init(void)
+int __init netlbl_mgmt_genl_init(void)
{
- int ret_val;
+ int ret_val, i;
ret_val = genl_register_family(&netlbl_mgmt_gnl_family);
if (ret_val != 0)
return ret_val;
- ret_val = genl_register_ops(&netlbl_mgmt_gnl_family,
- &netlbl_mgmt_genl_c_add);
- if (ret_val != 0)
- return ret_val;
- ret_val = genl_register_ops(&netlbl_mgmt_gnl_family,
- &netlbl_mgmt_genl_c_remove);
- if (ret_val != 0)
- return ret_val;
- ret_val = genl_register_ops(&netlbl_mgmt_gnl_family,
- &netlbl_mgmt_genl_c_listall);
- if (ret_val != 0)
- return ret_val;
- ret_val = genl_register_ops(&netlbl_mgmt_gnl_family,
- &netlbl_mgmt_genl_c_adddef);
- if (ret_val != 0)
- return ret_val;
- ret_val = genl_register_ops(&netlbl_mgmt_gnl_family,
- &netlbl_mgmt_genl_c_removedef);
- if (ret_val != 0)
- return ret_val;
- ret_val = genl_register_ops(&netlbl_mgmt_gnl_family,
- &netlbl_mgmt_genl_c_listdef);
- if (ret_val != 0)
- return ret_val;
- ret_val = genl_register_ops(&netlbl_mgmt_gnl_family,
- &netlbl_mgmt_genl_c_protocols);
- if (ret_val != 0)
- return ret_val;
- ret_val = genl_register_ops(&netlbl_mgmt_gnl_family,
- &netlbl_mgmt_genl_c_version);
- if (ret_val != 0)
- return ret_val;
+ for (i = 0; i < ARRAY_SIZE(netlbl_mgmt_genl_ops); i++) {
+ ret_val = genl_register_ops(&netlbl_mgmt_gnl_family,
+ &netlbl_mgmt_genl_ops[i]);
+ if (ret_val != 0)
+ return ret_val;
+ }
return 0;
}
diff --git a/net/netlabel/netlabel_unlabeled.c b/net/netlabel/netlabel_unlabeled.c
index 3e745b7..4478f2f 100644
--- a/net/netlabel/netlabel_unlabeled.c
+++ b/net/netlabel/netlabel_unlabeled.c
@@ -1553,68 +1553,63 @@
* NetLabel Generic NETLINK Command Definitions
*/
-static struct genl_ops netlbl_unlabel_genl_c_staticadd = {
+static struct genl_ops netlbl_unlabel_genl_ops[] = {
+ {
.cmd = NLBL_UNLABEL_C_STATICADD,
.flags = GENL_ADMIN_PERM,
.policy = netlbl_unlabel_genl_policy,
.doit = netlbl_unlabel_staticadd,
.dumpit = NULL,
-};
-
-static struct genl_ops netlbl_unlabel_genl_c_staticremove = {
+ },
+ {
.cmd = NLBL_UNLABEL_C_STATICREMOVE,
.flags = GENL_ADMIN_PERM,
.policy = netlbl_unlabel_genl_policy,
.doit = netlbl_unlabel_staticremove,
.dumpit = NULL,
-};
-
-static struct genl_ops netlbl_unlabel_genl_c_staticlist = {
+ },
+ {
.cmd = NLBL_UNLABEL_C_STATICLIST,
.flags = 0,
.policy = netlbl_unlabel_genl_policy,
.doit = NULL,
.dumpit = netlbl_unlabel_staticlist,
-};
-
-static struct genl_ops netlbl_unlabel_genl_c_staticadddef = {
+ },
+ {
.cmd = NLBL_UNLABEL_C_STATICADDDEF,
.flags = GENL_ADMIN_PERM,
.policy = netlbl_unlabel_genl_policy,
.doit = netlbl_unlabel_staticadddef,
.dumpit = NULL,
-};
-
-static struct genl_ops netlbl_unlabel_genl_c_staticremovedef = {
+ },
+ {
.cmd = NLBL_UNLABEL_C_STATICREMOVEDEF,
.flags = GENL_ADMIN_PERM,
.policy = netlbl_unlabel_genl_policy,
.doit = netlbl_unlabel_staticremovedef,
.dumpit = NULL,
-};
-
-static struct genl_ops netlbl_unlabel_genl_c_staticlistdef = {
+ },
+ {
.cmd = NLBL_UNLABEL_C_STATICLISTDEF,
.flags = 0,
.policy = netlbl_unlabel_genl_policy,
.doit = NULL,
.dumpit = netlbl_unlabel_staticlistdef,
-};
-
-static struct genl_ops netlbl_unlabel_genl_c_accept = {
+ },
+ {
.cmd = NLBL_UNLABEL_C_ACCEPT,
.flags = GENL_ADMIN_PERM,
.policy = netlbl_unlabel_genl_policy,
.doit = netlbl_unlabel_accept,
.dumpit = NULL,
-};
-
-static struct genl_ops netlbl_unlabel_genl_c_list = {
+ },
+ {
.cmd = NLBL_UNLABEL_C_LIST,
.flags = 0,
.policy = netlbl_unlabel_genl_policy,
.doit = netlbl_unlabel_list,
.dumpit = NULL,
+ },
};
/*
@@ -1629,53 +1624,20 @@
* mechanism. Returns zero on success, negative values on failure.
*
*/
-int netlbl_unlabel_genl_init(void)
+int __init netlbl_unlabel_genl_init(void)
{
- int ret_val;
+ int ret_val, i;
ret_val = genl_register_family(&netlbl_unlabel_gnl_family);
if (ret_val != 0)
return ret_val;
- ret_val = genl_register_ops(&netlbl_unlabel_gnl_family,
- &netlbl_unlabel_genl_c_staticadd);
- if (ret_val != 0)
- return ret_val;
-
- ret_val = genl_register_ops(&netlbl_unlabel_gnl_family,
- &netlbl_unlabel_genl_c_staticremove);
- if (ret_val != 0)
- return ret_val;
-
- ret_val = genl_register_ops(&netlbl_unlabel_gnl_family,
- &netlbl_unlabel_genl_c_staticlist);
- if (ret_val != 0)
- return ret_val;
-
- ret_val = genl_register_ops(&netlbl_unlabel_gnl_family,
- &netlbl_unlabel_genl_c_staticadddef);
- if (ret_val != 0)
- return ret_val;
-
- ret_val = genl_register_ops(&netlbl_unlabel_gnl_family,
- &netlbl_unlabel_genl_c_staticremovedef);
- if (ret_val != 0)
- return ret_val;
-
- ret_val = genl_register_ops(&netlbl_unlabel_gnl_family,
- &netlbl_unlabel_genl_c_staticlistdef);
- if (ret_val != 0)
- return ret_val;
-
- ret_val = genl_register_ops(&netlbl_unlabel_gnl_family,
- &netlbl_unlabel_genl_c_accept);
- if (ret_val != 0)
- return ret_val;
-
- ret_val = genl_register_ops(&netlbl_unlabel_gnl_family,
- &netlbl_unlabel_genl_c_list);
- if (ret_val != 0)
- return ret_val;
+ for (i = 0; i < ARRAY_SIZE(netlbl_unlabel_genl_ops); i++) {
+ ret_val = genl_register_ops(&netlbl_unlabel_gnl_family,
+ &netlbl_unlabel_genl_ops[i]);
+ if (ret_val != 0)
+ return ret_val;
+ }
return 0;
}
@@ -1699,7 +1661,7 @@
* non-zero values on error.
*
*/
-int netlbl_unlabel_init(u32 size)
+int __init netlbl_unlabel_init(u32 size)
{
u32 iter;
struct netlbl_unlhsh_tbl *hsh_tbl;
@@ -1803,7 +1765,7 @@
* and to send unlabeled network traffic by default.
*
*/
-int netlbl_unlabel_defconf(void)
+int __init netlbl_unlabel_defconf(void)
{
int ret_val;
struct netlbl_dom_map *entry;
diff --git a/net/netlabel/netlabel_user.c b/net/netlabel/netlabel_user.c
index 023fc8f..b17d420 100644
--- a/net/netlabel/netlabel_user.c
+++ b/net/netlabel/netlabel_user.c
@@ -59,7 +59,7 @@
* non-zero on failure.
*
*/
-int netlbl_netlink_init(void)
+int __init netlbl_netlink_init(void)
{
int ret_val;
diff --git a/net/rxrpc/ar-accept.c b/net/rxrpc/ar-accept.c
index 92a87fd..bdfb774 100644
--- a/net/rxrpc/ar-accept.c
+++ b/net/rxrpc/ar-accept.c
@@ -156,8 +156,7 @@
false);
spin_unlock(&call->lock);
notification = NULL;
- if (ret < 0)
- BUG();
+ BUG_ON(ret < 0);
}
spin_unlock(&call->conn->state_lock);
diff --git a/net/rxrpc/ar-ack.c b/net/rxrpc/ar-ack.c
index 657ee69..3ac1672 100644
--- a/net/rxrpc/ar-ack.c
+++ b/net/rxrpc/ar-ack.c
@@ -814,8 +814,7 @@
spin_lock_bh(&call->lock);
ret = rxrpc_queue_rcv_skb(call, skb, true, fatal);
spin_unlock_bh(&call->lock);
- if (ret < 0)
- BUG();
+ BUG_ON(ret < 0);
}
return 0;
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 47219f9..9fc4c31 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -331,15 +331,31 @@
struct hlist_head *ndsttable,
unsigned int nhashmask)
{
- struct hlist_node *entry, *tmp;
+ struct hlist_node *entry, *tmp, *entry0 = NULL;
struct xfrm_policy *pol;
+ unsigned int h0 = 0;
+redo:
hlist_for_each_entry_safe(pol, entry, tmp, list, bydst) {
unsigned int h;
h = __addr_hash(&pol->selector.daddr, &pol->selector.saddr,
pol->family, nhashmask);
- hlist_add_head(&pol->bydst, ndsttable+h);
+ if (!entry0) {
+ hlist_del(entry);
+ hlist_add_head(&pol->bydst, ndsttable+h);
+ h0 = h;
+ } else {
+ if (h != h0)
+ continue;
+ hlist_del(entry);
+ hlist_add_after(entry0, &pol->bydst);
+ }
+ entry0 = entry;
+ }
+ if (!hlist_empty(list)) {
+ entry0 = NULL;
+ goto redo;
}
}
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 6174277..695b5d6 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -1200,7 +1200,7 @@
"annotate %s with a matching annotation.\n",
from, sec2annotation(fromsec), fromsym, from_p,
to, sec2annotation(tosec), tosym, to_p,
- fromsym, tosym, fromsym);
+ tosym, fromsym, tosym);
break;
case INIT_TO_EXIT:
fprintf(stderr,
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index 2b5d6f7..25cbfa3 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -1251,9 +1251,8 @@
switch (smack_net_nltype) {
case NETLBL_NLTYPE_CIPSOV4:
- nlsp->domain = NULL;
- nlsp->flags = NETLBL_SECATTR_DOMAIN;
- nlsp->flags |= NETLBL_SECATTR_MLS_LVL;
+ nlsp->domain = kstrdup(smack, GFP_ATOMIC);
+ nlsp->flags = NETLBL_SECATTR_DOMAIN | NETLBL_SECATTR_MLS_LVL;
rc = smack_to_cipso(smack, &cipso);
if (rc == 0) {
@@ -1282,15 +1281,14 @@
{
struct socket_smack *ssp;
struct netlbl_lsm_secattr secattr;
- int rc = 0;
+ int rc;
ssp = sk->sk_security;
netlbl_secattr_init(&secattr);
smack_to_secattr(ssp->smk_out, &secattr);
- if (secattr.flags != NETLBL_SECATTR_NONE)
- rc = netlbl_sock_setattr(sk, &secattr);
-
+ rc = netlbl_sock_setattr(sk, &secattr);
netlbl_secattr_destroy(&secattr);
+
return rc;
}
@@ -1313,6 +1311,7 @@
struct inode_smack *nsp = inode->i_security;
struct socket_smack *ssp;
struct socket *sock;
+ int rc = 0;
if (value == NULL || size > SMK_LABELLEN)
return -EACCES;
@@ -1341,7 +1340,10 @@
ssp->smk_in = sp;
else if (strcmp(name, XATTR_SMACK_IPOUT) == 0) {
ssp->smk_out = sp;
- return smack_netlabel(sock->sk);
+ rc = smack_netlabel(sock->sk);
+ if (rc != 0)
+ printk(KERN_WARNING "Smack: \"%s\" netlbl error %d.\n",
+ __func__, -rc);
} else
return -EOPNOTSUPP;
@@ -2214,6 +2216,9 @@
ssp->smk_packet[0] = '\0';
rc = smack_netlabel(sk);
+ if (rc != 0)
+ printk(KERN_WARNING "Smack: \"%s\" netlbl error %d.\n",
+ __func__, -rc);
}
/**
@@ -2346,6 +2351,20 @@
}
/*
+ * smack_secctx_to_secid - return the secid for a smack label
+ * @secdata: smack label
+ * @seclen: how long result is
+ * @secid: outgoing integer
+ *
+ * Exists for audit and networking code.
+ */
+static int smack_secctx_to_secid(char *secdata, u32 seclen, u32 *secid)
+{
+ *secid = smack_to_secid(secdata);
+ return 0;
+}
+
+/*
* smack_release_secctx - don't do anything.
* @key_ref: unused
* @context: unused
@@ -2475,6 +2494,7 @@
.key_permission = smack_key_permission,
#endif /* CONFIG_KEYS */
.secid_to_secctx = smack_secid_to_secctx,
+ .secctx_to_secid = smack_secctx_to_secid,
.release_secctx = smack_release_secctx,
};
diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c
index 15aa37f..358c92c 100644
--- a/security/smack/smackfs.c
+++ b/security/smack/smackfs.c
@@ -24,6 +24,7 @@
#include <net/cipso_ipv4.h>
#include <linux/seq_file.h>
#include <linux/ctype.h>
+#include <linux/audit.h>
#include "smack.h"
/*
@@ -45,6 +46,7 @@
*/
static DEFINE_MUTEX(smack_list_lock);
static DEFINE_MUTEX(smack_cipso_lock);
+static DEFINE_MUTEX(smack_ambient_lock);
/*
* This is the "ambient" label for network traffic.
@@ -342,6 +344,9 @@
struct cipso_v4_doi *doip;
struct netlbl_audit audit_info;
+ audit_info.loginuid = audit_get_loginuid(current);
+ audit_info.secid = smack_to_secid(current->security);
+
rc = netlbl_cfg_map_del(NULL, &audit_info);
if (rc != 0)
printk(KERN_WARNING "%s:%d remove rc = %d\n",
@@ -363,6 +368,30 @@
__func__, __LINE__, rc);
}
+/**
+ * smk_unlbl_ambient - initialize the unlabeled domain
+ */
+void smk_unlbl_ambient(char *oldambient)
+{
+ int rc;
+ struct netlbl_audit audit_info;
+
+ audit_info.loginuid = audit_get_loginuid(current);
+ audit_info.secid = smack_to_secid(current->security);
+
+ if (oldambient != NULL) {
+ rc = netlbl_cfg_map_del(oldambient, &audit_info);
+ if (rc != 0)
+ printk(KERN_WARNING "%s:%d remove rc = %d\n",
+ __func__, __LINE__, rc);
+ }
+
+ rc = netlbl_cfg_unlbl_add_map(smack_net_ambient, &audit_info);
+ if (rc != 0)
+ printk(KERN_WARNING "%s:%d add rc = %d\n",
+ __func__, __LINE__, rc);
+}
+
/*
* Seq_file read operations for /smack/cipso
*/
@@ -709,7 +738,6 @@
size_t cn, loff_t *ppos)
{
ssize_t rc;
- char out[SMK_LABELLEN];
int asize;
if (*ppos != 0)
@@ -717,23 +745,18 @@
/*
* Being careful to avoid a problem in the case where
* smack_net_ambient gets changed in midstream.
- * Since smack_net_ambient is always set with a value
- * from the label list, including initially, and those
- * never get freed, the worst case is that the pointer
- * gets changed just after this strncpy, in which case
- * the value passed up is incorrect. Locking around
- * smack_net_ambient wouldn't be any better than this
- * copy scheme as by the time the caller got to look
- * at the ambient value it would have cleared the lock
- * and been changed.
*/
- strncpy(out, smack_net_ambient, SMK_LABELLEN);
- asize = strlen(out) + 1;
+ mutex_lock(&smack_ambient_lock);
- if (cn < asize)
- return -EINVAL;
+ asize = strlen(smack_net_ambient) + 1;
- rc = simple_read_from_buffer(buf, cn, ppos, out, asize);
+ if (cn >= asize)
+ rc = simple_read_from_buffer(buf, cn, ppos,
+ smack_net_ambient, asize);
+ else
+ rc = -EINVAL;
+
+ mutex_unlock(&smack_ambient_lock);
return rc;
}
@@ -751,6 +774,7 @@
size_t count, loff_t *ppos)
{
char in[SMK_LABELLEN];
+ char *oldambient;
char *smack;
if (!capable(CAP_MAC_ADMIN))
@@ -766,7 +790,13 @@
if (smack == NULL)
return -EINVAL;
+ mutex_lock(&smack_ambient_lock);
+
+ oldambient = smack_net_ambient;
smack_net_ambient = smack;
+ smk_unlbl_ambient(oldambient);
+
+ mutex_unlock(&smack_ambient_lock);
return count;
}
@@ -974,6 +1004,7 @@
sema_init(&smack_write_sem, 1);
smk_cipso_doi();
+ smk_unlbl_ambient(NULL);
return err;
}