drmP.h
上传用户:jlfgdled
上传日期:2013-04-10
资源大小:33168k
文件大小:29k
- /* drmP.h -- Private header for Direct Rendering Manager -*- linux-c -*-
- * Created: Mon Jan 4 10:05:05 1999 by faith@precisioninsight.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
- * PRECISION INSIGHT 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.
- *
- * Authors:
- * Rickard E. (Rik) Faith <faith@valinux.com>
- *
- */
- #ifndef _DRM_P_H_
- #define _DRM_P_H_
- #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/major.h>
- #include <linux/fs.h>
- #include <linux/proc_fs.h>
- #include <linux/init.h>
- #include <linux/file.h>
- #include <linux/pci.h>
- #include <linux/wrapper.h>
- #include <linux/version.h>
- #include <linux/sched.h>
- #include <linux/smp_lock.h> /* For (un)lock_kernel */
- #include <linux/mm.h>
- #ifdef __alpha__
- #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
- #if LINUX_VERSION_CODE >= 0x020100 /* KERNEL_VERSION(2,1,0) */
- #include <linux/tqueue.h>
- #include <linux/poll.h>
- #endif
- #if LINUX_VERSION_CODE < 0x020400
- #include "compat-pre24.h"
- #endif
- #include "drm.h"
- #define DRM_DEBUG_CODE 2 /* Include debugging code (if > 1, then
- also include looping detection. */
- #define DRM_DMA_HISTOGRAM 1 /* Make histogram of DMA latency. */
- #define DRM_HASH_SIZE 16 /* Size of key hash table */
- #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_FLAG_NOCTX 0x02
- #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_MAX_CTXBITMAP (PAGE_SIZE * 8)
- /* Backward compatibility section */
- /* _PAGE_WT changed to _PAGE_PWT in 2.2.6 */
- #ifndef _PAGE_PWT
- #define _PAGE_PWT _PAGE_WT
- #endif
- /* Wait queue declarations changed in 2.3.1 */
- #ifndef DECLARE_WAITQUEUE
- #define DECLARE_WAITQUEUE(w,c) struct wait_queue w = { c, NULL }
- typedef struct wait_queue *wait_queue_head_t;
- #define init_waitqueue_head(q) *q = NULL;
- #endif
- /* _PAGE_4M changed to _PAGE_PSE in 2.3.23 */
- #ifndef _PAGE_PSE
- #define _PAGE_PSE _PAGE_4M
- #endif
- /* vm_offset changed to vm_pgoff in 2.3.25 */
- #if LINUX_VERSION_CODE < 0x020319
- #define VM_OFFSET(vma) ((vma)->vm_offset)
- #else
- #define VM_OFFSET(vma) ((vma)->vm_pgoff << PAGE_SHIFT)
- #endif
- /* *_nopage return values defined in 2.3.26 */
- #ifndef NOPAGE_SIGBUS
- #define NOPAGE_SIGBUS 0
- #endif
- #ifndef NOPAGE_OOM
- #define NOPAGE_OOM 0
- #endif
- /* module_init/module_exit added in 2.3.13 */
- #ifndef module_init
- #define module_init(x) int init_module(void) { return x(); }
- #endif
- #ifndef module_exit
- #define module_exit(x) void cleanup_module(void) { x(); }
- #endif
- /* Generic cmpxchg added in 2.3.x */
- #ifndef __HAVE_ARCH_CMPXCHG
- /* Include this here so that driver can be
- used with older kernels. */
- #if defined(__alpha__)
- static __inline__ unsigned long
- __cmpxchg_u32(volatile int *m, int old, int new)
- {
- unsigned long prev, cmp;
- __asm__ __volatile__(
- "1: ldl_l %0,%2n"
- " cmpeq %0,%3,%1n"
- " beq %1,2fn"
- " mov %4,%1n"
- " stl_c %1,%2n"
- " beq %1,3fn"
- "2: mbn"
- ".subsection 2n"
- "3: br 1bn"
- ".previous"
- : "=&r"(prev), "=&r"(cmp), "=m"(*m)
- : "r"((long) old), "r"(new), "m"(*m));
- return prev;
- }
- static __inline__ unsigned long
- __cmpxchg_u64(volatile long *m, unsigned long old, unsigned long new)
- {
- unsigned long prev, cmp;
- __asm__ __volatile__(
- "1: ldq_l %0,%2n"
- " cmpeq %0,%3,%1n"
- " beq %1,2fn"
- " mov %4,%1n"
- " stq_c %1,%2n"
- " beq %1,3fn"
- "2: mbn"
- ".subsection 2n"
- "3: br 1bn"
- ".previous"
- : "=&r"(prev), "=&r"(cmp), "=m"(*m)
- : "r"((long) old), "r"(new), "m"(*m));
- return prev;
- }
- static __inline__ unsigned long
- __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)
- {
- switch (size) {
- case 4:
- return __cmpxchg_u32(ptr, old, new);
- case 8:
- return __cmpxchg_u64(ptr, old, new);
- }
- return old;
- }
- #define cmpxchg(ptr,o,n)
- ({
- __typeof__(*(ptr)) _o_ = (o);
- __typeof__(*(ptr)) _n_ = (n);
- (__typeof__(*(ptr))) __cmpxchg((ptr), (unsigned long)_o_,
- (unsigned long)_n_, sizeof(*(ptr)));
- })
- #elif __i386__
- static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
- unsigned long new, int size)
- {
- unsigned long prev;
- switch (size) {
- case 1:
- __asm__ __volatile__(LOCK_PREFIX "cmpxchgb %b1,%2"
- : "=a"(prev)
- : "q"(new), "m"(*__xg(ptr)), "0"(old)
- : "memory");
- return prev;
- case 2:
- __asm__ __volatile__(LOCK_PREFIX "cmpxchgw %w1,%2"
- : "=a"(prev)
- : "q"(new), "m"(*__xg(ptr)), "0"(old)
- : "memory");
- return prev;
- case 4:
- __asm__ __volatile__(LOCK_PREFIX "cmpxchgl %1,%2"
- : "=a"(prev)
- : "q"(new), "m"(*__xg(ptr)), "0"(old)
- : "memory");
- return prev;
- }
- return old;
- }
- #define cmpxchg(ptr,o,n)
- ((__typeof__(*(ptr)))__cmpxchg((ptr),(unsigned long)(o),
- (unsigned long)(n),sizeof(*(ptr))))
- #endif /* i386 & alpha */
- #endif
- /* Macros to make printk easier */
- #define DRM_ERROR(fmt, arg...)
- printk(KERN_ERR "[" DRM_NAME ":" __FUNCTION__ "] *ERROR* " fmt , ##arg)
- #define DRM_MEM_ERROR(area, fmt, arg...)
- printk(KERN_ERR "[" DRM_NAME ":" __FUNCTION__ ":%s] *ERROR* " fmt ,
- drm_mem_stats[area].name , ##arg)
- #define DRM_INFO(fmt, arg...) printk(KERN_INFO "[" DRM_NAME "] " fmt , ##arg)
- #if DRM_DEBUG_CODE
- #define DRM_DEBUG(fmt, arg...)
- do {
- if (drm_flags&DRM_FLAG_DEBUG)
- printk(KERN_DEBUG
- "[" DRM_NAME ":" __FUNCTION__ "] " fmt ,
- ##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) return len;
- #define DRM_PROC_PRINT_RET(ret, fmt, arg...)
- len += sprintf(&buf[len], fmt , ##arg);
- if (len > DRM_PROC_LIMIT) { ret; return len; }
- /* 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)
- 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;
- 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 */
- pid_t pid; /* PID of holding process */
- 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 */
- #if DRM_DMA_HISTOGRAM
- cycles_t time_queued; /* Queued to kernel DMA queue */
- cycles_t time_dispatched; /* Dispatched to hardware */
- cycles_t time_completed; /* Completed by hardware */
- cycles_t time_freed; /* Back on freelist */
- #endif
- int dev_priv_size; /* Size of buffer private stoarge */
- void *dev_private; /* Per-buffer private storage */
- } drm_buf_t;
- #if DRM_DMA_HISTOGRAM
- #define DRM_DMA_HISTOGRAM_SLOTS 9
- #define DRM_DMA_HISTOGRAM_INITIAL 10
- #define DRM_DMA_HISTOGRAM_NEXT(current) ((current)*10)
- typedef struct drm_histogram {
- atomic_t total;
-
- atomic_t queued_to_dispatched[DRM_DMA_HISTOGRAM_SLOTS];
- atomic_t dispatched_to_completed[DRM_DMA_HISTOGRAM_SLOTS];
- atomic_t completed_to_freed[DRM_DMA_HISTOGRAM_SLOTS];
-
- atomic_t queued_to_completed[DRM_DMA_HISTOGRAM_SLOTS];
- atomic_t queued_to_freed[DRM_DMA_HISTOGRAM_SLOTS];
-
- atomic_t dma[DRM_DMA_HISTOGRAM_SLOTS];
- atomic_t schedule[DRM_DMA_HISTOGRAM_SLOTS];
- atomic_t ctx[DRM_DMA_HISTOGRAM_SLOTS];
- atomic_t lacq[DRM_DMA_HISTOGRAM_SLOTS];
- atomic_t lhld[DRM_DMA_HISTOGRAM_SLOTS];
- } drm_histogram_t;
- #endif
- /* 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;
- typedef struct drm_buf_entry {
- int buf_size;
- int buf_count;
- drm_buf_t *buflist;
- int seg_count;
- int page_order;
- unsigned long *seglist;
- drm_freelist_t freelist;
- } drm_buf_entry_t;
- typedef struct drm_hw_lock {
- __volatile__ unsigned int lock;
- char padding[60]; /* Pad to cache line */
- } drm_hw_lock_t;
- 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_device *dev;
- int remove_auth_on_close;
- } drm_file_t;
- 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 */
- atomic_t total_queued; /* Total queued statistic */
- atomic_t total_flushed;/* Total flushes statistic */
- atomic_t total_locks; /* Total locks statistics */
- 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;
- typedef struct drm_lock_data {
- drm_hw_lock_t *hw_lock; /* Hardware lock */
- pid_t pid; /* PID 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;
- typedef struct drm_device_dma {
- /* Performance Counters */
- atomic_t total_prio; /* Total DRM_DMA_PRIORITY */
- atomic_t total_bytes; /* Total bytes DMA'd */
- atomic_t total_dmas; /* Total DMA buffers dispatched */
-
- atomic_t total_missed_dma; /* Missed drm_do_dma */
- atomic_t total_missed_lock; /* Missed lock in drm_do_dma */
- atomic_t total_missed_free; /* Missed drm_free_this_buffer */
- atomic_t total_missed_sched;/* Missed drm_dma_schedule */
- atomic_t total_tried; /* Tried next_buffer */
- atomic_t total_hit; /* Sent next_buffer */
- atomic_t total_lost; /* Lost interrupt */
- drm_buf_entry_t bufs[DRM_MAX_ORDER+1];
- int buf_count;
- drm_buf_t **buflist; /* Vector of pointers info bufs */
- int seg_count;
- int page_count;
- unsigned long *pagelist;
- unsigned long byte_count;
- enum {
- _DRM_DMA_USE_AGP = 0x01
- } flags;
- /* DMA support */
- drm_buf_t *this_buffer; /* Buffer being sent */
- drm_buf_t *next_buffer; /* Selected buffer to send */
- drm_queue_t *next_queue; /* Queue from which buffer selected*/
- wait_queue_head_t waiting; /* Processes waiting on free bufs */
- } drm_device_dma_t;
- #if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
- typedef struct drm_agp_mem {
- unsigned long handle;
- agp_memory *memory;
- unsigned long bound; /* address */
- int pages;
- struct drm_agp_mem *prev;
- struct drm_agp_mem *next;
- } drm_agp_mem_t;
- typedef struct drm_agp_head {
- agp_kern_info agp_info;
- const char *chipset;
- drm_agp_mem_t *memory;
- unsigned long mode;
- int enabled;
- int acquired;
- unsigned long base;
- int agp_mtrr;
- } drm_agp_head_t;
- #endif
- typedef struct drm_sigdata {
- int context;
- drm_hw_lock_t *lock;
- } drm_sigdata_t;
- typedef struct drm_device {
- const char *name; /* Simple driver name */
- char *unique; /* Unique identifier: e.g., busid */
- int unique_len; /* Length of unique field */
- dev_t device; /* Device number for mknod */
- char *devname; /* For /proc/interrupts */
-
- int blocked; /* Blocked due to VC switch? */
- struct proc_dir_entry *root; /* Root for this device's entries */
- /* Locks */
- spinlock_t count_lock; /* For inuse, open_count, buf_use */
- struct semaphore struct_sem; /* For others */
- /* 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 */
- /* Performance Counters */
- atomic_t total_open;
- atomic_t total_close;
- atomic_t total_ioctl;
- atomic_t total_irq; /* Total interruptions */
- atomic_t total_ctx; /* Total context switches */
-
- atomic_t total_locks;
- atomic_t total_unlocks;
- atomic_t total_contends;
- atomic_t total_sleeps;
- /* Authentication */
- drm_file_t *file_first;
- drm_file_t *file_last;
- drm_magic_head_t magiclist[DRM_HASH_SIZE];
- /* Memory management */
- drm_map_t **maplist; /* Vector of pointers to regions */
- int map_count; /* Number of mappable regions */
- drm_vma_entry_t *vmalist; /* List of vmas (for debugging) */
- drm_lock_data_t lock; /* Information on hardware lock */
- /* 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 */
- /* Context support */
- int irq; /* Interrupt used by board */
- __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 tq_struct tq;
- cycles_t ctx_start;
- cycles_t lck_start;
- #if DRM_DMA_HISTOGRAM
- drm_histogram_t histo;
- #endif
-
- /* Callback to X server for context switch
- and for heavy-handed reset. */
- 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 */
-
- #if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
- drm_agp_head_t *agp;
- #endif
- unsigned long *ctx_bitmap;
- void *dev_private;
- drm_sigdata_t sigdata; /* For block_all_signals */
- sigset_t sigmask;
- } drm_device_t;
- /* Internal function definitions */
- /* Misc. support (init.c) */
- extern int drm_flags;
- extern void drm_parse_options(char *s);
- extern int drm_cpu_valid(void);
- /* Device support (fops.c) */
- 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_release(struct inode *inode, struct file *filp);
- extern int drm_fasync(int fd, struct file *filp, int on);
- extern ssize_t drm_read(struct file *filp, char *buf, size_t count,
- loff_t *off);
- extern int drm_write_string(drm_device_t *dev, const char *s);
- extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait);
- /* Mapping support (vm.c) */
- #if LINUX_VERSION_CODE < 0x020317
- extern unsigned long drm_vm_nopage(struct vm_area_struct *vma,
- unsigned long address,
- int write_access);
- extern unsigned long drm_vm_shm_nopage(struct vm_area_struct *vma,
- unsigned long address,
- int write_access);
- extern unsigned long drm_vm_shm_nopage_lock(struct vm_area_struct *vma,
- unsigned long address,
- int write_access);
- extern unsigned long drm_vm_dma_nopage(struct vm_area_struct *vma,
- unsigned long address,
- int write_access);
- #else
- /* Return type changed in 2.3.23 */
- extern struct page *drm_vm_nopage(struct vm_area_struct *vma,
- unsigned long address,
- int write_access);
- extern struct page *drm_vm_shm_nopage(struct vm_area_struct *vma,
- unsigned long address,
- int write_access);
- extern struct page *drm_vm_shm_nopage_lock(struct vm_area_struct *vma,
- unsigned long address,
- int write_access);
- extern struct page *drm_vm_dma_nopage(struct vm_area_struct *vma,
- unsigned long address,
- int write_access);
- #endif
- extern void drm_vm_open(struct vm_area_struct *vma);
- extern void drm_vm_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);
- /* Proc support (proc.c) */
- extern int drm_proc_init(drm_device_t *dev);
- extern int drm_proc_cleanup(void);
- /* Memory management support (memory.c) */
- extern void drm_mem_init(void);
- extern int drm_mem_info(char *buf, char **start, off_t offset,
- int len, int *eof, void *data);
- extern void *drm_alloc(size_t size, int area);
- extern void *drm_realloc(void *oldpt, size_t oldsize, size_t size,
- int area);
- extern char *drm_strdup(const char *s, int area);
- extern void drm_strfree(const char *s, int area);
- extern void drm_free(void *pt, 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);
- extern void drm_ioremapfree(void *pt, unsigned long size);
- #if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
- extern agp_memory *drm_alloc_agp(int pages, u32 type);
- extern int drm_free_agp(agp_memory *handle, int pages);
- extern int drm_bind_agp(agp_memory *handle, unsigned int start);
- extern int drm_unbind_agp(agp_memory *handle);
- #endif
- /* Buffer management support (bufs.c) */
- 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_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);
- /* Buffer list management support (lists.c) */
- extern int drm_waitlist_create(drm_waitlist_t *bl, int count);
- extern int drm_waitlist_destroy(drm_waitlist_t *bl);
- extern int drm_waitlist_put(drm_waitlist_t *bl, drm_buf_t *buf);
- extern drm_buf_t *drm_waitlist_get(drm_waitlist_t *bl);
- extern int drm_freelist_create(drm_freelist_t *bl, int count);
- extern int drm_freelist_destroy(drm_freelist_t *bl);
- extern int drm_freelist_put(drm_device_t *dev, drm_freelist_t *bl,
- drm_buf_t *buf);
- extern drm_buf_t *drm_freelist_get(drm_freelist_t *bl, int block);
- /* DMA support (gen_dma.c) */
- extern void 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_reclaim_buffers(drm_device_t *dev, pid_t pid);
- 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 void drm_clear_next_buffer(drm_device_t *dev);
- extern int drm_select_queue(drm_device_t *dev,
- void (*wrapper)(unsigned long));
- extern int drm_dma_enqueue(drm_device_t *dev, drm_dma_t *dma);
- extern int drm_dma_get_buffers(drm_device_t *dev, drm_dma_t *dma);
- #if DRM_DMA_HISTOGRAM
- extern int drm_histogram_slot(unsigned long count);
- extern void drm_histogram_compute(drm_device_t *dev, drm_buf_t *buf);
- #endif
- /* Misc. IOCTL support (ioctl.c) */
- extern int drm_irq_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);
- /* Context IOCTL support (context.c) */
- 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);
- /* Drawable IOCTL support (drawable.c) */
- 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 (auth.c) */
- 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);
- /* Locking IOCTL support (lock.c) */
- extern int drm_block(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg);
- extern int drm_unblock(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_finish(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg);
- extern int drm_flush_unblock(drm_device_t *dev, int context,
- drm_lock_flags_t flags);
- extern int drm_flush_block_and_flush(drm_device_t *dev, int context,
- drm_lock_flags_t flags);
- extern int drm_notifier(void *priv);
- /* Context Bitmap support (ctxbitmap.c) */
- extern int drm_ctxbitmap_init(drm_device_t *dev);
- extern void drm_ctxbitmap_cleanup(drm_device_t *dev);
- extern int drm_ctxbitmap_next(drm_device_t *dev);
- extern void drm_ctxbitmap_free(drm_device_t *dev, int ctx_handle);
- #if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
- /* AGP/GART support (agpsupport.c) */
- extern drm_agp_head_t *drm_agp_init(void);
- extern void drm_agp_uninit(void);
- extern int drm_agp_acquire(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg);
- extern void _drm_agp_release(void);
- 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 agp_memory *drm_agp_allocate_memory(size_t pages, u32 type);
- extern int drm_agp_free_memory(agp_memory *handle);
- extern int drm_agp_bind_memory(agp_memory *handle, off_t start);
- extern int drm_agp_unbind_memory(agp_memory *handle);
- #endif
- #endif
- #endif