Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/char/drm/drmP.h b/drivers/char/drm/drmP.h
new file mode 100644
index 0000000..21f4c54
--- /dev/null
+++ b/drivers/char/drm/drmP.h
@@ -0,0 +1,1073 @@
+/**
+ * \file drmP.h
+ * Private header for Direct Rendering Manager
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef _DRM_P_H_
+#define _DRM_P_H_
+
+/* If you want the memory alloc debug functionality, change define below */
+/* #define DEBUG_MEMORY */
+
+#ifdef __KERNEL__
+#ifdef __alpha__
+/* add include of current.h so that "current" is defined
+ * before static inline funcs in wait.h. Doing this so we
+ * can build the DRM (part of PI DRI). 4/21/2000 S + B */
+#include <asm/current.h>
+#endif /* __alpha__ */
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/miscdevice.h>
+#include <linux/fs.h>
+#include <linux/proc_fs.h>
+#include <linux/init.h>
+#include <linux/file.h>
+#include <linux/pci.h>
+#include <linux/version.h>
+#include <linux/jiffies.h>
+#include <linux/smp_lock.h> /* For (un)lock_kernel */
+#include <linux/mm.h>
+#include <linux/cdev.h>
+#if defined(__alpha__) || defined(__powerpc__)
+#include <asm/pgtable.h> /* For pte_wrprotect */
+#endif
+#include <asm/io.h>
+#include <asm/mman.h>
+#include <asm/uaccess.h>
+#ifdef CONFIG_MTRR
+#include <asm/mtrr.h>
+#endif
+#if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
+#include <linux/types.h>
+#include <linux/agp_backend.h>
+#endif
+#include <linux/workqueue.h>
+#include <linux/poll.h>
+#include <asm/pgalloc.h>
+#include "drm.h"
+
+#define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE)))
+#define __OS_HAS_MTRR (defined(CONFIG_MTRR))
+
+#include "drm_os_linux.h"
+
+/***********************************************************************/
+/** \name DRM template customization defaults */
+/*@{*/
+
+/* driver capabilities and requirements mask */
+#define DRIVER_USE_AGP 0x1
+#define DRIVER_REQUIRE_AGP 0x2
+#define DRIVER_USE_MTRR 0x4
+#define DRIVER_PCI_DMA 0x8
+#define DRIVER_SG 0x10
+#define DRIVER_HAVE_DMA 0x20
+#define DRIVER_HAVE_IRQ 0x40
+#define DRIVER_IRQ_SHARED 0x80
+#define DRIVER_IRQ_VBL 0x100
+#define DRIVER_DMA_QUEUE 0x200
+
+/***********************************************************************/
+/** \name Begin the DRM... */
+/*@{*/
+
+#define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then
+ also include looping detection. */
+
+#define DRM_HASH_SIZE 16 /**< Size of key hash table. Must be power of 2. */
+#define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */
+#define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */
+#define DRM_LOOPING_LIMIT 5000000
+#define DRM_BSZ 1024 /**< Buffer size for /dev/drm? output */
+#define DRM_TIME_SLICE (HZ/20) /**< Time slice for GLXContexts */
+#define DRM_LOCK_SLICE 1 /**< Time slice for lock, in jiffies */
+
+#define DRM_FLAG_DEBUG 0x01
+
+#define DRM_MEM_DMA 0
+#define DRM_MEM_SAREA 1
+#define DRM_MEM_DRIVER 2
+#define DRM_MEM_MAGIC 3
+#define DRM_MEM_IOCTLS 4
+#define DRM_MEM_MAPS 5
+#define DRM_MEM_VMAS 6
+#define DRM_MEM_BUFS 7
+#define DRM_MEM_SEGS 8
+#define DRM_MEM_PAGES 9
+#define DRM_MEM_FILES 10
+#define DRM_MEM_QUEUES 11
+#define DRM_MEM_CMDS 12
+#define DRM_MEM_MAPPINGS 13
+#define DRM_MEM_BUFLISTS 14
+#define DRM_MEM_AGPLISTS 15
+#define DRM_MEM_TOTALAGP 16
+#define DRM_MEM_BOUNDAGP 17
+#define DRM_MEM_CTXBITMAP 18
+#define DRM_MEM_STUB 19
+#define DRM_MEM_SGLISTS 20
+#define DRM_MEM_CTXLIST 21
+
+#define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
+
+/*@}*/
+
+
+/***********************************************************************/
+/** \name Backward compatibility section */
+/*@{*/
+
+#ifndef MODULE_LICENSE
+#define MODULE_LICENSE(x)
+#endif
+
+#ifndef preempt_disable
+#define preempt_disable()
+#define preempt_enable()
+#endif
+
+#ifndef pte_offset_map
+#define pte_offset_map pte_offset
+#define pte_unmap(pte)
+#endif
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,19)
+static inline struct page * vmalloc_to_page(void * vmalloc_addr)
+{
+ unsigned long addr = (unsigned long) vmalloc_addr;
+ struct page *page = NULL;
+ pgd_t *pgd = pgd_offset_k(addr);
+ pmd_t *pmd;
+ pte_t *ptep, pte;
+
+ if (!pgd_none(*pgd)) {
+ pmd = pmd_offset(pgd, addr);
+ if (!pmd_none(*pmd)) {
+ preempt_disable();
+ ptep = pte_offset_map(pmd, addr);
+ pte = *ptep;
+ if (pte_present(pte))
+ page = pte_page(pte);
+ pte_unmap(ptep);
+ preempt_enable();
+ }
+ }
+ return page;
+}
+#endif
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
+#define DRM_RPR_ARG(vma)
+#else
+#define DRM_RPR_ARG(vma) vma,
+#endif
+
+#define VM_OFFSET(vma) ((vma)->vm_pgoff << PAGE_SHIFT)
+
+/*@}*/
+
+
+/***********************************************************************/
+/** \name Macros to make printk easier */
+/*@{*/
+
+/**
+ * Error output.
+ *
+ * \param fmt printf() like format string.
+ * \param arg arguments
+ */
+#define DRM_ERROR(fmt, arg...) \
+ printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* " fmt , __FUNCTION__ , ##arg)
+
+/**
+ * Memory error output.
+ *
+ * \param area memory area where the error occurred.
+ * \param fmt printf() like format string.
+ * \param arg arguments
+ */
+#define DRM_MEM_ERROR(area, fmt, arg...) \
+ printk(KERN_ERR "[" DRM_NAME ":%s:%s] *ERROR* " fmt , __FUNCTION__, \
+ drm_mem_stats[area].name , ##arg)
+
+#define DRM_INFO(fmt, arg...) printk(KERN_INFO "[" DRM_NAME "] " fmt , ##arg)
+
+/**
+ * Debug output.
+ *
+ * \param fmt printf() like format string.
+ * \param arg arguments
+ */
+#if DRM_DEBUG_CODE
+#define DRM_DEBUG(fmt, arg...) \
+ do { \
+ if ( drm_debug ) \
+ printk(KERN_DEBUG \
+ "[" DRM_NAME ":%s] " fmt , \
+ __FUNCTION__ , ##arg); \
+ } while (0)
+#else
+#define DRM_DEBUG(fmt, arg...) do { } while (0)
+#endif
+
+#define DRM_PROC_LIMIT (PAGE_SIZE-80)
+
+#define DRM_PROC_PRINT(fmt, arg...) \
+ len += sprintf(&buf[len], fmt , ##arg); \
+ if (len > DRM_PROC_LIMIT) { *eof = 1; return len - offset; }
+
+#define DRM_PROC_PRINT_RET(ret, fmt, arg...) \
+ len += sprintf(&buf[len], fmt , ##arg); \
+ if (len > DRM_PROC_LIMIT) { ret; *eof = 1; return len - offset; }
+
+/*@}*/
+
+
+/***********************************************************************/
+/** \name Internal types and structures */
+/*@{*/
+
+#define DRM_ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
+#define DRM_MIN(a,b) ((a)<(b)?(a):(b))
+#define DRM_MAX(a,b) ((a)>(b)?(a):(b))
+
+#define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
+#define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
+#define DRM_WAITCOUNT(dev,idx) DRM_BUFCOUNT(&dev->queuelist[idx]->waitlist)
+
+#define DRM_IF_VERSION(maj, min) (maj << 16 | min)
+/**
+ * Get the private SAREA mapping.
+ *
+ * \param _dev DRM device.
+ * \param _ctx context number.
+ * \param _map output mapping.
+ */
+#define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
+ (_map) = (_dev)->context_sareas[_ctx]; \
+} while(0)
+
+/**
+ * Test that the hardware lock is held by the caller, returning otherwise.
+ *
+ * \param dev DRM device.
+ * \param filp file pointer of the caller.
+ */
+#define LOCK_TEST_WITH_RETURN( dev, filp ) \
+do { \
+ if ( !_DRM_LOCK_IS_HELD( dev->lock.hw_lock->lock ) || \
+ dev->lock.filp != filp ) { \
+ DRM_ERROR( "%s called without lock held\n", \
+ __FUNCTION__ ); \
+ return -EINVAL; \
+ } \
+} while (0)
+
+/**
+ * Copy and IOCTL return string to user space
+ */
+#define DRM_COPY( name, value ) \
+ len = strlen( value ); \
+ if ( len > name##_len ) len = name##_len; \
+ name##_len = strlen( value ); \
+ if ( len && name ) { \
+ if ( copy_to_user( name, value, len ) ) \
+ return -EFAULT; \
+ }
+
+/**
+ * Ioctl function type.
+ *
+ * \param inode device inode.
+ * \param filp file pointer.
+ * \param cmd command.
+ * \param arg argument.
+ */
+typedef int drm_ioctl_t( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg );
+
+typedef struct drm_ioctl_desc {
+ drm_ioctl_t *func;
+ int auth_needed;
+ int root_only;
+} drm_ioctl_desc_t;
+
+typedef struct drm_devstate {
+ pid_t owner; /**< X server pid holding x_lock */
+} drm_devstate_t;
+
+typedef struct drm_magic_entry {
+ drm_magic_t magic;
+ struct drm_file *priv;
+ struct drm_magic_entry *next;
+} drm_magic_entry_t;
+
+typedef struct drm_magic_head {
+ struct drm_magic_entry *head;
+ struct drm_magic_entry *tail;
+} drm_magic_head_t;
+
+typedef struct drm_vma_entry {
+ struct vm_area_struct *vma;
+ struct drm_vma_entry *next;
+ pid_t pid;
+} drm_vma_entry_t;
+
+/**
+ * DMA buffer.
+ */
+typedef struct drm_buf {
+ int idx; /**< Index into master buflist */
+ int total; /**< Buffer size */
+ int order; /**< log-base-2(total) */
+ int used; /**< Amount of buffer in use (for DMA) */
+ unsigned long offset; /**< Byte offset (used internally) */
+ void *address; /**< Address of buffer */
+ unsigned long bus_address; /**< Bus address of buffer */
+ struct drm_buf *next; /**< Kernel-only: used for free list */
+ __volatile__ int waiting; /**< On kernel DMA queue */
+ __volatile__ int pending; /**< On hardware DMA queue */
+ wait_queue_head_t dma_wait; /**< Processes waiting */
+ struct file *filp; /**< Pointer to holding file descr */
+ int context; /**< Kernel queue for this buffer */
+ int while_locked;/**< Dispatch this buffer while locked */
+ enum {
+ DRM_LIST_NONE = 0,
+ DRM_LIST_FREE = 1,
+ DRM_LIST_WAIT = 2,
+ DRM_LIST_PEND = 3,
+ DRM_LIST_PRIO = 4,
+ DRM_LIST_RECLAIM = 5
+ } list; /**< Which list we're on */
+
+ int dev_priv_size; /**< Size of buffer private storage */
+ void *dev_private; /**< Per-buffer private storage */
+} drm_buf_t;
+
+
+/** bufs is one longer than it has to be */
+typedef struct drm_waitlist {
+ int count; /**< Number of possible buffers */
+ drm_buf_t **bufs; /**< List of pointers to buffers */
+ drm_buf_t **rp; /**< Read pointer */
+ drm_buf_t **wp; /**< Write pointer */
+ drm_buf_t **end; /**< End pointer */
+ spinlock_t read_lock;
+ spinlock_t write_lock;
+} drm_waitlist_t;
+
+typedef struct drm_freelist {
+ int initialized; /**< Freelist in use */
+ atomic_t count; /**< Number of free buffers */
+ drm_buf_t *next; /**< End pointer */
+
+ wait_queue_head_t waiting; /**< Processes waiting on free bufs */
+ int low_mark; /**< Low water mark */
+ int high_mark; /**< High water mark */
+ atomic_t wfh; /**< If waiting for high mark */
+ spinlock_t lock;
+} drm_freelist_t;
+
+/**
+ * Buffer entry. There is one of this for each buffer size order.
+ */
+typedef struct drm_buf_entry {
+ int buf_size; /**< size */
+ int buf_count; /**< number of buffers */
+ drm_buf_t *buflist; /**< buffer list */
+ int seg_count;
+ int page_order;
+ unsigned long *seglist;
+
+ drm_freelist_t freelist;
+} drm_buf_entry_t;
+
+/** File private data */
+typedef struct drm_file {
+ int authenticated;
+ int minor;
+ pid_t pid;
+ uid_t uid;
+ drm_magic_t magic;
+ unsigned long ioctl_count;
+ struct drm_file *next;
+ struct drm_file *prev;
+ struct drm_head *head;
+ int remove_auth_on_close;
+ unsigned long lock_count;
+ void *driver_priv;
+} drm_file_t;
+
+/** Wait queue */
+typedef struct drm_queue {
+ atomic_t use_count; /**< Outstanding uses (+1) */
+ atomic_t finalization; /**< Finalization in progress */
+ atomic_t block_count; /**< Count of processes waiting */
+ atomic_t block_read; /**< Queue blocked for reads */
+ wait_queue_head_t read_queue; /**< Processes waiting on block_read */
+ atomic_t block_write; /**< Queue blocked for writes */
+ wait_queue_head_t write_queue; /**< Processes waiting on block_write */
+#if 1
+ atomic_t total_queued; /**< Total queued statistic */
+ atomic_t total_flushed;/**< Total flushes statistic */
+ atomic_t total_locks; /**< Total locks statistics */
+#endif
+ drm_ctx_flags_t flags; /**< Context preserving and 2D-only */
+ drm_waitlist_t waitlist; /**< Pending buffers */
+ wait_queue_head_t flush_queue; /**< Processes waiting until flush */
+} drm_queue_t;
+
+/**
+ * Lock data.
+ */
+typedef struct drm_lock_data {
+ drm_hw_lock_t *hw_lock; /**< Hardware lock */
+ struct file *filp; /**< File descr of lock holder (0=kernel) */
+ wait_queue_head_t lock_queue; /**< Queue of blocked processes */
+ unsigned long lock_time; /**< Time of last lock in jiffies */
+} drm_lock_data_t;
+
+/**
+ * DMA data.
+ */
+typedef struct drm_device_dma {
+
+ drm_buf_entry_t bufs[DRM_MAX_ORDER+1]; /**< buffers, grouped by their size order */
+ int buf_count; /**< total number of buffers */
+ drm_buf_t **buflist; /**< Vector of pointers into drm_device_dma::bufs */
+ int seg_count;
+ int page_count; /**< number of pages */
+ unsigned long *pagelist; /**< page list */
+ unsigned long byte_count;
+ enum {
+ _DRM_DMA_USE_AGP = 0x01,
+ _DRM_DMA_USE_SG = 0x02
+ } flags;
+
+} drm_device_dma_t;
+
+/**
+ * AGP memory entry. Stored as a doubly linked list.
+ */
+typedef struct drm_agp_mem {
+ unsigned long handle; /**< handle */
+ DRM_AGP_MEM *memory;
+ unsigned long bound; /**< address */
+ int pages;
+ struct drm_agp_mem *prev; /**< previous entry */
+ struct drm_agp_mem *next; /**< next entry */
+} drm_agp_mem_t;
+
+/**
+ * AGP data.
+ *
+ * \sa drm_agp_init() and drm_device::agp.
+ */
+typedef struct drm_agp_head {
+ DRM_AGP_KERN agp_info; /**< AGP device information */
+ drm_agp_mem_t *memory; /**< memory entries */
+ unsigned long mode; /**< AGP mode */
+ struct agp_bridge_data *bridge;
+ int enabled; /**< whether the AGP bus as been enabled */
+ int acquired; /**< whether the AGP device has been acquired */
+ unsigned long base;
+ int agp_mtrr;
+ int cant_use_aperture;
+ unsigned long page_mask;
+} drm_agp_head_t;
+
+/**
+ * Scatter-gather memory.
+ */
+typedef struct drm_sg_mem {
+ unsigned long handle;
+ void *virtual;
+ int pages;
+ struct page **pagelist;
+ dma_addr_t *busaddr;
+} drm_sg_mem_t;
+
+typedef struct drm_sigdata {
+ int context;
+ drm_hw_lock_t *lock;
+} drm_sigdata_t;
+
+/**
+ * Mappings list
+ */
+typedef struct drm_map_list {
+ struct list_head head; /**< list head */
+ drm_map_t *map; /**< mapping */
+} drm_map_list_t;
+
+typedef drm_map_t drm_local_map_t;
+
+/**
+ * Context handle list
+ */
+typedef struct drm_ctx_list {
+ struct list_head head; /**< list head */
+ drm_context_t handle; /**< context handle */
+ drm_file_t *tag; /**< associated fd private data */
+} drm_ctx_list_t;
+
+
+typedef struct drm_vbl_sig {
+ struct list_head head;
+ unsigned int sequence;
+ struct siginfo info;
+ struct task_struct *task;
+} drm_vbl_sig_t;
+
+
+/**
+ * DRM driver structure. This structure represent the common code for
+ * a family of cards. There will one drm_device for each card present
+ * in this family
+ */
+struct drm_device;
+
+struct drm_driver {
+ int (*preinit)(struct drm_device *, unsigned long flags);
+ void (*prerelease)(struct drm_device *, struct file *filp);
+ void (*pretakedown)(struct drm_device *);
+ int (*postcleanup)(struct drm_device *);
+ int (*presetup)(struct drm_device *);
+ int (*postsetup)(struct drm_device *);
+ int (*dma_ioctl)( DRM_IOCTL_ARGS );
+ int (*open_helper)(struct drm_device *, drm_file_t *);
+ void (*free_filp_priv)(struct drm_device *, drm_file_t *);
+ void (*release)(struct drm_device *, struct file *filp);
+ void (*dma_ready)(struct drm_device *);
+ int (*dma_quiescent)(struct drm_device *);
+ int (*context_ctor)(struct drm_device *dev, int context);
+ int (*context_dtor)(struct drm_device *dev, int context);
+ int (*kernel_context_switch)(struct drm_device *dev, int old, int new);
+ void (*kernel_context_switch_unlock)(struct drm_device *dev, drm_lock_t *lock);
+ int (*vblank_wait)(struct drm_device *dev, unsigned int *sequence);
+ /* these have to be filled in */
+ int (*postinit)(struct drm_device *, unsigned long flags);
+ irqreturn_t (*irq_handler)( DRM_IRQ_ARGS );
+ void (*irq_preinstall)(struct drm_device *dev);
+ void (*irq_postinstall)(struct drm_device *dev);
+ void (*irq_uninstall)(struct drm_device *dev);
+ void (*reclaim_buffers)(struct drm_device *dev, struct file *filp);
+ unsigned long (*get_map_ofs)(drm_map_t *map);
+ unsigned long (*get_reg_ofs)(struct drm_device *dev);
+ void (*set_version)(struct drm_device *dev, drm_set_version_t *sv);
+ int (*version)(drm_version_t *version);
+ u32 driver_features;
+ int dev_priv_size;
+ drm_ioctl_desc_t *ioctls;
+ int num_ioctls;
+ struct file_operations fops;
+ struct pci_driver pci_driver;
+};
+
+/**
+ * DRM head structure. This structure represent a video head on a card
+ * that may contain multiple heads. Embed one per head of these in the
+ * private drm_device structure.
+ */
+typedef struct drm_head {
+ int minor; /**< Minor device number */
+ struct drm_device *dev;
+ struct proc_dir_entry *dev_root; /**< proc directory entry */
+ dev_t device; /**< Device number for mknod */
+ struct class_device *dev_class;
+} drm_head_t;
+
+/**
+ * DRM device structure. This structure represent a complete card that
+ * may contain multiple heads.
+ */
+typedef struct drm_device {
+ char *unique; /**< Unique identifier: e.g., busid */
+ int unique_len; /**< Length of unique field */
+ char *devname; /**< For /proc/interrupts */
+ int if_version; /**< Highest interface version set */
+
+ int blocked; /**< Blocked due to VC switch? */
+
+ /** \name Locks */
+ /*@{*/
+ spinlock_t count_lock; /**< For inuse, drm_device::open_count, drm_device::buf_use */
+ struct semaphore struct_sem; /**< For others */
+ /*@}*/
+
+ /** \name Usage Counters */
+ /*@{*/
+ int open_count; /**< Outstanding files open */
+ atomic_t ioctl_count; /**< Outstanding IOCTLs pending */
+ atomic_t vma_count; /**< Outstanding vma areas open */
+ int buf_use; /**< Buffers in use -- cannot alloc */
+ atomic_t buf_alloc; /**< Buffer allocation in progress */
+ /*@}*/
+
+ /** \name Performance counters */
+ /*@{*/
+ unsigned long counters;
+ drm_stat_type_t types[15];
+ atomic_t counts[15];
+ /*@}*/
+
+ /** \name Authentication */
+ /*@{*/
+ drm_file_t *file_first; /**< file list head */
+ drm_file_t *file_last; /**< file list tail */
+ drm_magic_head_t magiclist[DRM_HASH_SIZE]; /**< magic hash table */
+ /*@}*/
+
+ /** \name Memory management */
+ /*@{*/
+ drm_map_list_t *maplist; /**< Linked list of regions */
+ int map_count; /**< Number of mappable regions */
+
+ /** \name Context handle management */
+ /*@{*/
+ drm_ctx_list_t *ctxlist; /**< Linked list of context handles */
+ int ctx_count; /**< Number of context handles */
+ struct semaphore ctxlist_sem; /**< For ctxlist */
+
+ drm_map_t **context_sareas; /**< per-context SAREA's */
+ int max_context;
+
+ drm_vma_entry_t *vmalist; /**< List of vmas (for debugging) */
+ drm_lock_data_t lock; /**< Information on hardware lock */
+ /*@}*/
+
+ /** \name DMA queues (contexts) */
+ /*@{*/
+ int queue_count; /**< Number of active DMA queues */
+ int queue_reserved; /**< Number of reserved DMA queues */
+ int queue_slots; /**< Actual length of queuelist */
+ drm_queue_t **queuelist; /**< Vector of pointers to DMA queues */
+ drm_device_dma_t *dma; /**< Optional pointer for DMA support */
+ /*@}*/
+
+ /** \name Context support */
+ /*@{*/
+ int irq; /**< Interrupt used by board */
+ int irq_enabled; /**< True if irq handler is enabled */
+ __volatile__ long context_flag; /**< Context swapping flag */
+ __volatile__ long interrupt_flag; /**< Interruption handler flag */
+ __volatile__ long dma_flag; /**< DMA dispatch flag */
+ struct timer_list timer; /**< Timer for delaying ctx switch */
+ wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */
+ int last_checked; /**< Last context checked for DMA */
+ int last_context; /**< Last current context */
+ unsigned long last_switch; /**< jiffies at last context switch */
+ /*@}*/
+
+ struct work_struct work;
+ /** \name VBLANK IRQ support */
+ /*@{*/
+
+ wait_queue_head_t vbl_queue; /**< VBLANK wait queue */
+ atomic_t vbl_received;
+ spinlock_t vbl_lock;
+ drm_vbl_sig_t vbl_sigs; /**< signal list to send on VBLANK */
+ unsigned int vbl_pending;
+
+ /*@}*/
+ cycles_t ctx_start;
+ cycles_t lck_start;
+
+ char buf[DRM_BSZ]; /**< Output buffer */
+ char *buf_rp; /**< Read pointer */
+ char *buf_wp; /**< Write pointer */
+ char *buf_end; /**< End pointer */
+ struct fasync_struct *buf_async;/**< Processes waiting for SIGIO */
+ wait_queue_head_t buf_readers; /**< Processes waiting to read */
+ wait_queue_head_t buf_writers; /**< Processes waiting to ctx switch */
+
+ drm_agp_head_t *agp; /**< AGP data */
+
+ struct pci_dev *pdev; /**< PCI device structure */
+ int pci_domain; /**< PCI bus domain number */
+ int pci_bus; /**< PCI bus number */
+ int pci_slot; /**< PCI slot number */
+ int pci_func; /**< PCI function number */
+#ifdef __alpha__
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,3)
+ struct pci_controler *hose;
+#else
+ struct pci_controller *hose;
+#endif
+#endif
+ drm_sg_mem_t *sg; /**< Scatter gather memory */
+ unsigned long *ctx_bitmap; /**< context bitmap */
+ void *dev_private; /**< device private data */
+ drm_sigdata_t sigdata; /**< For block_all_signals */
+ sigset_t sigmask;
+
+ struct drm_driver *driver;
+ drm_local_map_t *agp_buffer_map;
+ drm_head_t primary; /**< primary screen head */
+} drm_device_t;
+
+static __inline__ int drm_core_check_feature(struct drm_device *dev, int feature)
+{
+ return ((dev->driver->driver_features & feature) ? 1 : 0);
+}
+
+#if __OS_HAS_AGP
+static inline int drm_core_has_AGP(struct drm_device *dev)
+{
+ return drm_core_check_feature(dev, DRIVER_USE_AGP);
+}
+#else
+#define drm_core_has_AGP(dev) (0)
+#endif
+
+#if __OS_HAS_MTRR
+static inline int drm_core_has_MTRR(struct drm_device *dev)
+{
+ return drm_core_check_feature(dev, DRIVER_USE_MTRR);
+}
+#else
+#define drm_core_has_MTRR(dev) (0)
+#endif
+
+/******************************************************************/
+/** \name Internal function definitions */
+/*@{*/
+
+ /* Misc. support (drm_init.h) */
+extern int drm_flags;
+extern void drm_parse_options( char *s );
+extern int drm_cpu_valid( void );
+
+ /* Driver support (drm_drv.h) */
+extern int drm_init(struct drm_driver *driver);
+extern void drm_exit(struct drm_driver *driver);
+extern int drm_version(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg);
+extern int drm_ioctl(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg);
+extern int drm_takedown(drm_device_t * dev);
+
+ /* Device support (drm_fops.h) */
+extern int drm_open(struct inode *inode, struct file *filp);
+extern int drm_stub_open(struct inode *inode, struct file *filp);
+extern int drm_open_helper(struct inode *inode, struct file *filp,
+ drm_device_t *dev);
+extern int drm_flush(struct file *filp);
+extern int drm_fasync(int fd, struct file *filp, int on);
+extern int drm_release(struct inode *inode, struct file *filp);
+
+ /* Mapping support (drm_vm.h) */
+extern void drm_vm_open(struct vm_area_struct *vma);
+extern void drm_vm_close(struct vm_area_struct *vma);
+extern void drm_vm_shm_close(struct vm_area_struct *vma);
+extern int drm_mmap_dma(struct file *filp,
+ struct vm_area_struct *vma);
+extern int drm_mmap(struct file *filp, struct vm_area_struct *vma);
+extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait);
+extern ssize_t drm_read(struct file *filp, char __user *buf, size_t count, loff_t *off);
+
+ /* Memory management support (drm_memory.h) */
+#include "drm_memory.h"
+extern void drm_mem_init(void);
+extern int drm_mem_info(char *buf, char **start, off_t offset,
+ int request, int *eof, void *data);
+extern void *drm_calloc(size_t nmemb, size_t size, int area);
+extern void *drm_realloc(void *oldpt, size_t oldsize, size_t size,
+ int area);
+extern unsigned long drm_alloc_pages(int order, int area);
+extern void drm_free_pages(unsigned long address, int order,
+ int area);
+extern void *drm_ioremap(unsigned long offset, unsigned long size, drm_device_t *dev);
+extern void *drm_ioremap_nocache(unsigned long offset, unsigned long size,
+ drm_device_t *dev);
+extern void drm_ioremapfree(void *pt, unsigned long size, drm_device_t *dev);
+
+extern DRM_AGP_MEM *drm_alloc_agp(struct agp_bridge_data *bridge, int pages, u32 type);
+extern int drm_free_agp(DRM_AGP_MEM *handle, int pages);
+extern int drm_bind_agp(DRM_AGP_MEM *handle, unsigned int start);
+extern int drm_unbind_agp(DRM_AGP_MEM *handle);
+
+ /* Misc. IOCTL support (drm_ioctl.h) */
+extern int drm_irq_by_busid(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg);
+extern int drm_getunique(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg);
+extern int drm_setunique(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg);
+extern int drm_getmap(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg);
+extern int drm_getclient(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg);
+extern int drm_getstats(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg);
+extern int drm_setversion(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg);
+
+ /* Context IOCTL support (drm_context.h) */
+extern int drm_resctx( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg );
+extern int drm_addctx( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg );
+extern int drm_modctx( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg );
+extern int drm_getctx( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg );
+extern int drm_switchctx( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg );
+extern int drm_newctx( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg );
+extern int drm_rmctx( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg );
+
+extern int drm_context_switch(drm_device_t *dev, int old, int new);
+extern int drm_context_switch_complete(drm_device_t *dev, int new);
+
+extern int drm_ctxbitmap_init( drm_device_t *dev );
+extern void drm_ctxbitmap_cleanup( drm_device_t *dev );
+extern void drm_ctxbitmap_free( drm_device_t *dev, int ctx_handle );
+
+extern int drm_setsareactx( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg );
+extern int drm_getsareactx( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg );
+
+ /* Drawable IOCTL support (drm_drawable.h) */
+extern int drm_adddraw(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg);
+extern int drm_rmdraw(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg);
+
+
+ /* Authentication IOCTL support (drm_auth.h) */
+extern int drm_add_magic(drm_device_t *dev, drm_file_t *priv,
+ drm_magic_t magic);
+extern int drm_remove_magic(drm_device_t *dev, drm_magic_t magic);
+extern int drm_getmagic(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg);
+extern int drm_authmagic(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg);
+
+ /* Placeholder for ioctls past */
+extern int drm_noop(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg);
+
+ /* Locking IOCTL support (drm_lock.h) */
+extern int drm_lock(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg);
+extern int drm_unlock(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg);
+extern int drm_lock_take(__volatile__ unsigned int *lock,
+ unsigned int context);
+extern int drm_lock_transfer(drm_device_t *dev,
+ __volatile__ unsigned int *lock,
+ unsigned int context);
+extern int drm_lock_free(drm_device_t *dev,
+ __volatile__ unsigned int *lock,
+ unsigned int context);
+extern int drm_notifier(void *priv);
+
+ /* Buffer management support (drm_bufs.h) */
+extern int drm_order( unsigned long size );
+extern int drm_addmap( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg );
+extern int drm_rmmap( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg );
+extern int drm_addbufs( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg );
+extern int drm_infobufs( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg );
+extern int drm_markbufs( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg );
+extern int drm_freebufs( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg );
+extern int drm_mapbufs( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg );
+
+ /* DMA support (drm_dma.h) */
+extern int drm_dma_setup(drm_device_t *dev);
+extern void drm_dma_takedown(drm_device_t *dev);
+extern void drm_free_buffer(drm_device_t *dev, drm_buf_t *buf);
+extern void drm_core_reclaim_buffers(drm_device_t *dev, struct file *filp);
+
+ /* IRQ support (drm_irq.h) */
+extern int drm_control( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg );
+extern int drm_irq_install( drm_device_t *dev );
+extern int drm_irq_uninstall( drm_device_t *dev );
+extern irqreturn_t drm_irq_handler( DRM_IRQ_ARGS );
+extern void drm_driver_irq_preinstall( drm_device_t *dev );
+extern void drm_driver_irq_postinstall( drm_device_t *dev );
+extern void drm_driver_irq_uninstall( drm_device_t *dev );
+
+extern int drm_wait_vblank(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg);
+extern int drm_vblank_wait(drm_device_t *dev, unsigned int *vbl_seq);
+extern void drm_vbl_send_signals( drm_device_t *dev );
+
+ /* AGP/GART support (drm_agpsupport.h) */
+extern drm_agp_head_t *drm_agp_init(drm_device_t *dev);
+extern int drm_agp_acquire(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg);
+extern void drm_agp_do_release(drm_device_t *dev);
+extern int drm_agp_release(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg);
+extern int drm_agp_enable(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg);
+extern int drm_agp_info(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg);
+extern int drm_agp_alloc(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg);
+extern int drm_agp_free(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg);
+extern int drm_agp_unbind(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg);
+extern int drm_agp_bind(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg);
+extern DRM_AGP_MEM *drm_agp_allocate_memory(struct agp_bridge_data *bridge, size_t pages, u32 type);
+extern int drm_agp_free_memory(DRM_AGP_MEM *handle);
+extern int drm_agp_bind_memory(DRM_AGP_MEM *handle, off_t start);
+extern int drm_agp_unbind_memory(DRM_AGP_MEM *handle);
+
+ /* Stub support (drm_stub.h) */
+extern int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
+ struct drm_driver *driver);
+extern int drm_put_dev(drm_device_t * dev);
+extern int drm_get_head(drm_device_t * dev, drm_head_t *head);
+extern int drm_put_head(drm_head_t * head);
+extern unsigned int drm_debug;
+extern unsigned int drm_cards_limit;
+extern drm_head_t **drm_heads;
+extern struct drm_sysfs_class *drm_class;
+extern struct proc_dir_entry *drm_proc_root;
+
+ /* Proc support (drm_proc.h) */
+extern int drm_proc_init(drm_device_t *dev,
+ int minor,
+ struct proc_dir_entry *root,
+ struct proc_dir_entry **dev_root);
+extern int drm_proc_cleanup(int minor,
+ struct proc_dir_entry *root,
+ struct proc_dir_entry *dev_root);
+
+ /* Scatter Gather Support (drm_scatter.h) */
+extern void drm_sg_cleanup(drm_sg_mem_t *entry);
+extern int drm_sg_alloc(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg);
+extern int drm_sg_free(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg);
+
+ /* ATI PCIGART support (ati_pcigart.h) */
+extern int drm_ati_pcigart_init(drm_device_t *dev,
+ unsigned long *addr,
+ dma_addr_t *bus_addr);
+extern int drm_ati_pcigart_cleanup(drm_device_t *dev,
+ unsigned long addr,
+ dma_addr_t bus_addr);
+
+extern void *drm_pci_alloc(drm_device_t * dev, size_t size,
+ size_t align, dma_addr_t maxaddr,
+ dma_addr_t * busaddr);
+
+extern void drm_pci_free(drm_device_t * dev, size_t size,
+ void *vaddr, dma_addr_t busaddr);
+
+ /* sysfs support (drm_sysfs.c) */
+struct drm_sysfs_class;
+extern struct drm_sysfs_class *drm_sysfs_create(struct module *owner,
+ char *name);
+extern void drm_sysfs_destroy(struct drm_sysfs_class *cs);
+extern struct class_device *drm_sysfs_device_add(struct drm_sysfs_class *cs,
+ dev_t dev,
+ struct device *device,
+ const char *fmt, ...);
+extern void drm_sysfs_device_remove(dev_t dev);
+
+
+/* Inline replacements for DRM_IOREMAP macros */
+static __inline__ void drm_core_ioremap(struct drm_map *map, struct drm_device *dev)
+{
+ map->handle = drm_ioremap( map->offset, map->size, dev );
+}
+
+static __inline__ void drm_core_ioremap_nocache(struct drm_map *map, struct drm_device *dev)
+{
+ map->handle = drm_ioremap_nocache(map->offset, map->size, dev);
+}
+
+static __inline__ void drm_core_ioremapfree(struct drm_map *map, struct drm_device *dev)
+{
+ if ( map->handle && map->size )
+ drm_ioremapfree( map->handle, map->size, dev );
+}
+
+static __inline__ struct drm_map *drm_core_findmap(struct drm_device *dev, unsigned long offset)
+{
+ struct list_head *_list;
+ list_for_each( _list, &dev->maplist->head ) {
+ drm_map_list_t *_entry = list_entry( _list, drm_map_list_t, head );
+ if ( _entry->map &&
+ _entry->map->offset == offset ) {
+ return _entry->map;
+ }
+ }
+ return NULL;
+}
+
+static __inline__ void drm_core_dropmap(struct drm_map *map)
+{
+}
+
+#ifndef DEBUG_MEMORY
+/** Wrapper around kmalloc() */
+static __inline__ void *drm_alloc(size_t size, int area)
+{
+ return kmalloc(size, GFP_KERNEL);
+}
+
+/** Wrapper around kfree() */
+static __inline__ void drm_free(void *pt, size_t size, int area)
+{
+ kfree(pt);
+}
+#else
+extern void *drm_alloc(size_t size, int area);
+extern void drm_free(void *pt, size_t size, int area);
+#endif
+
+/*@}*/
+
+extern unsigned long drm_core_get_map_ofs(drm_map_t *map);
+extern unsigned long drm_core_get_reg_ofs(struct drm_device *dev);
+
+#endif /* __KERNEL__ */
+#endif