patch-2.3.18 linux/drivers/char/drm/drmP.h
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- Lines: 585
- Date:
Tue Sep 7 14:51:28 1999
- Orig file:
v2.3.17/linux/drivers/char/drm/drmP.h
- Orig date:
Wed Dec 31 16:00:00 1969
diff -u --recursive --new-file v2.3.17/linux/drivers/char/drm/drmP.h linux/drivers/char/drm/drmP.h
@@ -0,0 +1,584 @@
+/* drmP.h -- Private header for Direct Rendering Manager -*- linux-c -*-
+ * Created: Mon Jan 4 10:05:05 1999 by faith@precisioninsight.com
+ * Revised: Fri Aug 20 13:04:33 1999 by faith@precisioninsight.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * 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.
+ *
+ * $PI: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/generic/drmP.h,v 1.58 1999/08/30 13:05:00 faith Exp $
+ * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/generic/drmP.h,v 1.2 1999/06/27 14:08:24 dawes Exp $
+ *
+ */
+
+#ifndef _DRM_P_H_
+#define _DRM_P_H_
+
+#ifdef __KERNEL__
+#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/wrapper.h>
+#include <linux/version.h>
+#include <asm/io.h>
+#include <asm/mman.h>
+#include <asm/uaccess.h>
+#ifdef CONFIG_MTRR
+#include <asm/mtrr.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
+
+ /* Backward compatibility section */
+#ifndef _PAGE_PWT
+ /* The name of _PAGE_WT was changed to
+ _PAGE_PWT in Linux 2.2.6 */
+#define _PAGE_PWT _PAGE_WT
+#endif
+ /* Wait queue declarations changes 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
+
+#define __drm_dummy_lock(lock) (*(__volatile__ unsigned int *)lock)
+#define _DRM_CAS(lock,old,new,__ret) \
+ do { \
+ int __dummy; /* Can't mark eax as clobbered */ \
+ __asm__ __volatile__( \
+ "lock ; cmpxchg %4,%1\n\t" \
+ "setnz %0" \
+ : "=d" (__ret), \
+ "=m" (__drm_dummy_lock(lock)), \
+ "=a" (__dummy) \
+ : "2" (old), \
+ "r" (new)); \
+ } while (0)
+
+
+
+ /* 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 */
+ 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
+} 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 */
+} 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;
+} 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;
+
+ /* 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;
+
+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__ int context_flag; /* Context swapping flag */
+ __volatile__ int interrupt_flag;/* Interruption handler flag */
+ __volatile__ int 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 */
+} drm_device_t;
+
+
+ /* Internal function definitions */
+
+ /* Misc. support (init.c) */
+extern int drm_flags;
+extern void drm_parse_options(char *s);
+
+
+ /* 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);
+
+ /* Mapping support (vm.c) */
+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_dma_nopage(struct vm_area_struct *vma,
+ unsigned long address,
+ int write_access);
+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);
+
+ /* 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_wakeup(drm_device_t *dev, drm_buf_t *buf);
+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(__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);
+#endif
+#endif
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)