blob: d2a56182bc35786a08c681abb273fea450e3abdd [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/**
Dave Airlieb5e89ed2005-09-25 14:28:13 +10002 * \file drmP.h
Linus Torvalds1da177e2005-04-16 15:20:36 -07003 * Private header for Direct Rendering Manager
Dave Airlieb5e89ed2005-09-25 14:28:13 +10004 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07005 * \author Rickard E. (Rik) Faith <faith@valinux.com>
6 * \author Gareth Hughes <gareth@valinux.com>
7 */
8
9/*
10 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
11 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
12 * All rights reserved.
13 *
14 * Permission is hereby granted, free of charge, to any person obtaining a
15 * copy of this software and associated documentation files (the "Software"),
16 * to deal in the Software without restriction, including without limitation
17 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
18 * and/or sell copies of the Software, and to permit persons to whom the
19 * Software is furnished to do so, subject to the following conditions:
20 *
21 * The above copyright notice and this permission notice (including the next
22 * paragraph) shall be included in all copies or substantial portions of the
23 * Software.
24 *
25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
26 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
27 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
28 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
29 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
30 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
31 * OTHER DEALINGS IN THE SOFTWARE.
32 */
33
34#ifndef _DRM_P_H_
35#define _DRM_P_H_
36
37/* If you want the memory alloc debug functionality, change define below */
38/* #define DEBUG_MEMORY */
39
40#ifdef __KERNEL__
41#ifdef __alpha__
42/* add include of current.h so that "current" is defined
43 * before static inline funcs in wait.h. Doing this so we
44 * can build the DRM (part of PI DRI). 4/21/2000 S + B */
45#include <asm/current.h>
Dave Airlieb5e89ed2005-09-25 14:28:13 +100046#endif /* __alpha__ */
Linus Torvalds1da177e2005-04-16 15:20:36 -070047#include <linux/module.h>
48#include <linux/kernel.h>
49#include <linux/miscdevice.h>
50#include <linux/fs.h>
51#include <linux/proc_fs.h>
52#include <linux/init.h>
53#include <linux/file.h>
54#include <linux/pci.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070055#include <linux/jiffies.h>
56#include <linux/smp_lock.h> /* For (un)lock_kernel */
57#include <linux/mm.h>
58#include <linux/cdev.h>
Dave Airlie30e2fb12006-02-02 19:37:46 +110059#include <linux/mutex.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070060#if defined(__alpha__) || defined(__powerpc__)
Dave Airlieb5e89ed2005-09-25 14:28:13 +100061#include <asm/pgtable.h> /* For pte_wrprotect */
Linus Torvalds1da177e2005-04-16 15:20:36 -070062#endif
63#include <asm/io.h>
64#include <asm/mman.h>
65#include <asm/uaccess.h>
66#ifdef CONFIG_MTRR
67#include <asm/mtrr.h>
68#endif
69#if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
70#include <linux/types.h>
71#include <linux/agp_backend.h>
72#endif
73#include <linux/workqueue.h>
74#include <linux/poll.h>
75#include <asm/pgalloc.h>
76#include "drm.h"
77
78#define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE)))
79#define __OS_HAS_MTRR (defined(CONFIG_MTRR))
80
81#include "drm_os_linux.h"
82
83/***********************************************************************/
84/** \name DRM template customization defaults */
85/*@{*/
86
87/* driver capabilities and requirements mask */
88#define DRIVER_USE_AGP 0x1
89#define DRIVER_REQUIRE_AGP 0x2
90#define DRIVER_USE_MTRR 0x4
91#define DRIVER_PCI_DMA 0x8
92#define DRIVER_SG 0x10
93#define DRIVER_HAVE_DMA 0x20
94#define DRIVER_HAVE_IRQ 0x40
95#define DRIVER_IRQ_SHARED 0x80
96#define DRIVER_IRQ_VBL 0x100
97#define DRIVER_DMA_QUEUE 0x200
Dave Airlieb84397d62005-07-10 14:46:12 +100098#define DRIVER_FB_DMA 0x400
Linus Torvalds1da177e2005-04-16 15:20:36 -070099
100/***********************************************************************/
101/** \name Begin the DRM... */
102/*@{*/
103
104#define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then
105 also include looping detection. */
106
107#define DRM_HASH_SIZE 16 /**< Size of key hash table. Must be power of 2. */
108#define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */
109#define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */
110#define DRM_LOOPING_LIMIT 5000000
Linus Torvalds1da177e2005-04-16 15:20:36 -0700111#define DRM_TIME_SLICE (HZ/20) /**< Time slice for GLXContexts */
112#define DRM_LOCK_SLICE 1 /**< Time slice for lock, in jiffies */
113
114#define DRM_FLAG_DEBUG 0x01
115
116#define DRM_MEM_DMA 0
117#define DRM_MEM_SAREA 1
118#define DRM_MEM_DRIVER 2
119#define DRM_MEM_MAGIC 3
120#define DRM_MEM_IOCTLS 4
121#define DRM_MEM_MAPS 5
122#define DRM_MEM_VMAS 6
123#define DRM_MEM_BUFS 7
124#define DRM_MEM_SEGS 8
125#define DRM_MEM_PAGES 9
126#define DRM_MEM_FILES 10
127#define DRM_MEM_QUEUES 11
128#define DRM_MEM_CMDS 12
129#define DRM_MEM_MAPPINGS 13
130#define DRM_MEM_BUFLISTS 14
131#define DRM_MEM_AGPLISTS 15
132#define DRM_MEM_TOTALAGP 16
133#define DRM_MEM_BOUNDAGP 17
134#define DRM_MEM_CTXBITMAP 18
135#define DRM_MEM_STUB 19
136#define DRM_MEM_SGLISTS 20
137#define DRM_MEM_CTXLIST 21
138
139#define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700140
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000141/*@}*/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700142
143/***********************************************************************/
144/** \name Backward compatibility section */
145/*@{*/
146
Linus Torvalds1da177e2005-04-16 15:20:36 -0700147#define DRM_RPR_ARG(vma) vma,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700148
149#define VM_OFFSET(vma) ((vma)->vm_pgoff << PAGE_SHIFT)
150
151/*@}*/
152
Linus Torvalds1da177e2005-04-16 15:20:36 -0700153/***********************************************************************/
154/** \name Macros to make printk easier */
155/*@{*/
156
157/**
158 * Error output.
159 *
160 * \param fmt printf() like format string.
161 * \param arg arguments
162 */
163#define DRM_ERROR(fmt, arg...) \
164 printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* " fmt , __FUNCTION__ , ##arg)
165
166/**
167 * Memory error output.
168 *
169 * \param area memory area where the error occurred.
170 * \param fmt printf() like format string.
171 * \param arg arguments
172 */
173#define DRM_MEM_ERROR(area, fmt, arg...) \
174 printk(KERN_ERR "[" DRM_NAME ":%s:%s] *ERROR* " fmt , __FUNCTION__, \
175 drm_mem_stats[area].name , ##arg)
176
177#define DRM_INFO(fmt, arg...) printk(KERN_INFO "[" DRM_NAME "] " fmt , ##arg)
178
179/**
180 * Debug output.
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000181 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700182 * \param fmt printf() like format string.
183 * \param arg arguments
184 */
185#if DRM_DEBUG_CODE
186#define DRM_DEBUG(fmt, arg...) \
187 do { \
188 if ( drm_debug ) \
189 printk(KERN_DEBUG \
190 "[" DRM_NAME ":%s] " fmt , \
191 __FUNCTION__ , ##arg); \
192 } while (0)
193#else
194#define DRM_DEBUG(fmt, arg...) do { } while (0)
195#endif
196
197#define DRM_PROC_LIMIT (PAGE_SIZE-80)
198
199#define DRM_PROC_PRINT(fmt, arg...) \
200 len += sprintf(&buf[len], fmt , ##arg); \
201 if (len > DRM_PROC_LIMIT) { *eof = 1; return len - offset; }
202
203#define DRM_PROC_PRINT_RET(ret, fmt, arg...) \
204 len += sprintf(&buf[len], fmt , ##arg); \
205 if (len > DRM_PROC_LIMIT) { ret; *eof = 1; return len - offset; }
206
207/*@}*/
208
Linus Torvalds1da177e2005-04-16 15:20:36 -0700209/***********************************************************************/
210/** \name Internal types and structures */
211/*@{*/
212
Dave Airlie99a26572005-09-25 13:25:41 +1000213#define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x)
214#define DRM_MIN(a,b) min(a,b)
215#define DRM_MAX(a,b) max(a,b)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700216
217#define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
218#define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
219#define DRM_WAITCOUNT(dev,idx) DRM_BUFCOUNT(&dev->queuelist[idx]->waitlist)
220
221#define DRM_IF_VERSION(maj, min) (maj << 16 | min)
222/**
223 * Get the private SAREA mapping.
224 *
225 * \param _dev DRM device.
226 * \param _ctx context number.
227 * \param _map output mapping.
228 */
229#define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
230 (_map) = (_dev)->context_sareas[_ctx]; \
231} while(0)
232
233/**
234 * Test that the hardware lock is held by the caller, returning otherwise.
235 *
236 * \param dev DRM device.
237 * \param filp file pointer of the caller.
238 */
239#define LOCK_TEST_WITH_RETURN( dev, filp ) \
240do { \
241 if ( !_DRM_LOCK_IS_HELD( dev->lock.hw_lock->lock ) || \
242 dev->lock.filp != filp ) { \
243 DRM_ERROR( "%s called without lock held\n", \
244 __FUNCTION__ ); \
245 return -EINVAL; \
246 } \
247} while (0)
248
249/**
250 * Copy and IOCTL return string to user space
251 */
252#define DRM_COPY( name, value ) \
253 len = strlen( value ); \
254 if ( len > name##_len ) len = name##_len; \
255 name##_len = strlen( value ); \
256 if ( len && name ) { \
257 if ( copy_to_user( name, value, len ) ) \
258 return -EFAULT; \
259 }
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000260
Linus Torvalds1da177e2005-04-16 15:20:36 -0700261/**
262 * Ioctl function type.
263 *
264 * \param inode device inode.
265 * \param filp file pointer.
266 * \param cmd command.
267 * \param arg argument.
268 */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000269typedef int drm_ioctl_t(struct inode *inode, struct file *filp,
270 unsigned int cmd, unsigned long arg);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700271
Dave Airlie9a186642005-06-23 21:29:18 +1000272typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
273 unsigned long arg);
274
Dave Airliea7a2cc32006-01-02 13:54:04 +1100275#define DRM_AUTH 0x1
276#define DRM_MASTER 0x2
277#define DRM_ROOT_ONLY 0x4
278
Linus Torvalds1da177e2005-04-16 15:20:36 -0700279typedef struct drm_ioctl_desc {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000280 drm_ioctl_t *func;
Dave Airliea7a2cc32006-01-02 13:54:04 +1100281 int flags;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700282} drm_ioctl_desc_t;
283
284typedef struct drm_devstate {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000285 pid_t owner; /**< X server pid holding x_lock */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700286} drm_devstate_t;
287
288typedef struct drm_magic_entry {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000289 drm_magic_t magic;
290 struct drm_file *priv;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700291 struct drm_magic_entry *next;
292} drm_magic_entry_t;
293
294typedef struct drm_magic_head {
295 struct drm_magic_entry *head;
296 struct drm_magic_entry *tail;
297} drm_magic_head_t;
298
299typedef struct drm_vma_entry {
300 struct vm_area_struct *vma;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000301 struct drm_vma_entry *next;
302 pid_t pid;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700303} drm_vma_entry_t;
304
305/**
306 * DMA buffer.
307 */
308typedef struct drm_buf {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000309 int idx; /**< Index into master buflist */
310 int total; /**< Buffer size */
311 int order; /**< log-base-2(total) */
312 int used; /**< Amount of buffer in use (for DMA) */
313 unsigned long offset; /**< Byte offset (used internally) */
314 void *address; /**< Address of buffer */
315 unsigned long bus_address; /**< Bus address of buffer */
316 struct drm_buf *next; /**< Kernel-only: used for free list */
317 __volatile__ int waiting; /**< On kernel DMA queue */
318 __volatile__ int pending; /**< On hardware DMA queue */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700319 wait_queue_head_t dma_wait; /**< Processes waiting */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000320 struct file *filp; /**< Pointer to holding file descr */
321 int context; /**< Kernel queue for this buffer */
322 int while_locked; /**< Dispatch this buffer while locked */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700323 enum {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000324 DRM_LIST_NONE = 0,
325 DRM_LIST_FREE = 1,
326 DRM_LIST_WAIT = 2,
327 DRM_LIST_PEND = 3,
328 DRM_LIST_PRIO = 4,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700329 DRM_LIST_RECLAIM = 5
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000330 } list; /**< Which list we're on */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700331
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000332 int dev_priv_size; /**< Size of buffer private storage */
333 void *dev_private; /**< Per-buffer private storage */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700334} drm_buf_t;
335
Linus Torvalds1da177e2005-04-16 15:20:36 -0700336/** bufs is one longer than it has to be */
337typedef struct drm_waitlist {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000338 int count; /**< Number of possible buffers */
339 drm_buf_t **bufs; /**< List of pointers to buffers */
340 drm_buf_t **rp; /**< Read pointer */
341 drm_buf_t **wp; /**< Write pointer */
342 drm_buf_t **end; /**< End pointer */
343 spinlock_t read_lock;
344 spinlock_t write_lock;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700345} drm_waitlist_t;
346
347typedef struct drm_freelist {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000348 int initialized; /**< Freelist in use */
349 atomic_t count; /**< Number of free buffers */
350 drm_buf_t *next; /**< End pointer */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700351
352 wait_queue_head_t waiting; /**< Processes waiting on free bufs */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000353 int low_mark; /**< Low water mark */
354 int high_mark; /**< High water mark */
355 atomic_t wfh; /**< If waiting for high mark */
356 spinlock_t lock;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700357} drm_freelist_t;
358
Dave Airlieddf19b92006-03-19 18:56:12 +1100359typedef struct drm_dma_handle {
360 dma_addr_t busaddr;
361 void *vaddr;
362 size_t size;
363} drm_dma_handle_t;
364
Linus Torvalds1da177e2005-04-16 15:20:36 -0700365/**
366 * Buffer entry. There is one of this for each buffer size order.
367 */
368typedef struct drm_buf_entry {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000369 int buf_size; /**< size */
370 int buf_count; /**< number of buffers */
371 drm_buf_t *buflist; /**< buffer list */
372 int seg_count;
373 int page_order;
Dave Airlieddf19b92006-03-19 18:56:12 +1100374 drm_dma_handle_t **seglist;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700375
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000376 drm_freelist_t freelist;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700377} drm_buf_entry_t;
378
379/** File private data */
380typedef struct drm_file {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000381 int authenticated;
Dave Airliea7a2cc32006-01-02 13:54:04 +1100382 int master;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000383 int minor;
384 pid_t pid;
385 uid_t uid;
386 drm_magic_t magic;
387 unsigned long ioctl_count;
388 struct drm_file *next;
389 struct drm_file *prev;
390 struct drm_head *head;
391 int remove_auth_on_close;
392 unsigned long lock_count;
393 void *driver_priv;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700394} drm_file_t;
395
396/** Wait queue */
397typedef struct drm_queue {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000398 atomic_t use_count; /**< Outstanding uses (+1) */
399 atomic_t finalization; /**< Finalization in progress */
400 atomic_t block_count; /**< Count of processes waiting */
401 atomic_t block_read; /**< Queue blocked for reads */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700402 wait_queue_head_t read_queue; /**< Processes waiting on block_read */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000403 atomic_t block_write; /**< Queue blocked for writes */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700404 wait_queue_head_t write_queue; /**< Processes waiting on block_write */
405#if 1
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000406 atomic_t total_queued; /**< Total queued statistic */
407 atomic_t total_flushed; /**< Total flushes statistic */
408 atomic_t total_locks; /**< Total locks statistics */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700409#endif
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000410 drm_ctx_flags_t flags; /**< Context preserving and 2D-only */
411 drm_waitlist_t waitlist; /**< Pending buffers */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700412 wait_queue_head_t flush_queue; /**< Processes waiting until flush */
413} drm_queue_t;
414
415/**
416 * Lock data.
417 */
418typedef struct drm_lock_data {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000419 drm_hw_lock_t *hw_lock; /**< Hardware lock */
420 struct file *filp; /**< File descr of lock holder (0=kernel) */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700421 wait_queue_head_t lock_queue; /**< Queue of blocked processes */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000422 unsigned long lock_time; /**< Time of last lock in jiffies */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700423} drm_lock_data_t;
424
425/**
426 * DMA data.
427 */
428typedef struct drm_device_dma {
429
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000430 drm_buf_entry_t bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */
431 int buf_count; /**< total number of buffers */
432 drm_buf_t **buflist; /**< Vector of pointers into drm_device_dma::bufs */
433 int seg_count;
434 int page_count; /**< number of pages */
435 unsigned long *pagelist; /**< page list */
436 unsigned long byte_count;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700437 enum {
438 _DRM_DMA_USE_AGP = 0x01,
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000439 _DRM_DMA_USE_SG = 0x02,
440 _DRM_DMA_USE_FB = 0x04
Linus Torvalds1da177e2005-04-16 15:20:36 -0700441 } flags;
442
443} drm_device_dma_t;
444
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000445/**
Linus Torvalds1da177e2005-04-16 15:20:36 -0700446 * AGP memory entry. Stored as a doubly linked list.
447 */
448typedef struct drm_agp_mem {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000449 unsigned long handle; /**< handle */
450 DRM_AGP_MEM *memory;
451 unsigned long bound; /**< address */
452 int pages;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700453 struct drm_agp_mem *prev; /**< previous entry */
454 struct drm_agp_mem *next; /**< next entry */
455} drm_agp_mem_t;
456
457/**
458 * AGP data.
459 *
460 * \sa drm_agp_init() and drm_device::agp.
461 */
462typedef struct drm_agp_head {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000463 DRM_AGP_KERN agp_info; /**< AGP device information */
464 drm_agp_mem_t *memory; /**< memory entries */
465 unsigned long mode; /**< AGP mode */
466 struct agp_bridge_data *bridge;
467 int enabled; /**< whether the AGP bus as been enabled */
468 int acquired; /**< whether the AGP device has been acquired */
469 unsigned long base;
470 int agp_mtrr;
471 int cant_use_aperture;
472 unsigned long page_mask;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700473} drm_agp_head_t;
474
475/**
476 * Scatter-gather memory.
477 */
478typedef struct drm_sg_mem {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000479 unsigned long handle;
480 void *virtual;
481 int pages;
482 struct page **pagelist;
483 dma_addr_t *busaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700484} drm_sg_mem_t;
485
486typedef struct drm_sigdata {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000487 int context;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700488 drm_hw_lock_t *lock;
489} drm_sigdata_t;
490
491/**
492 * Mappings list
493 */
494typedef struct drm_map_list {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000495 struct list_head head; /**< list head */
496 drm_map_t *map; /**< mapping */
Dave Airlied1f2b552005-08-05 22:11:22 +1000497 unsigned int user_token;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700498} drm_map_list_t;
499
500typedef drm_map_t drm_local_map_t;
501
502/**
503 * Context handle list
504 */
505typedef struct drm_ctx_list {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000506 struct list_head head; /**< list head */
507 drm_context_t handle; /**< context handle */
508 drm_file_t *tag; /**< associated fd private data */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700509} drm_ctx_list_t;
510
Linus Torvalds1da177e2005-04-16 15:20:36 -0700511typedef struct drm_vbl_sig {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000512 struct list_head head;
513 unsigned int sequence;
514 struct siginfo info;
515 struct task_struct *task;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700516} drm_vbl_sig_t;
517
Dave Airlieea98a922005-09-11 20:28:11 +1000518/* location of GART table */
519#define DRM_ATI_GART_MAIN 1
520#define DRM_ATI_GART_FB 2
521
522typedef struct ati_pcigart_info {
523 int gart_table_location;
524 int is_pcie;
Dave Airlief26c4732006-01-02 17:18:39 +1100525 void *addr;
Dave Airlieea98a922005-09-11 20:28:11 +1000526 dma_addr_t bus_addr;
Dave Airlief26c4732006-01-02 17:18:39 +1100527 drm_local_map_t mapping;
Dave Airlieea98a922005-09-11 20:28:11 +1000528} drm_ati_pcigart_info;
529
Linus Torvalds1da177e2005-04-16 15:20:36 -0700530/**
531 * DRM driver structure. This structure represent the common code for
532 * a family of cards. There will one drm_device for each card present
533 * in this family
534 */
535struct drm_device;
536
537struct drm_driver {
Dave Airlie22eae942005-11-10 22:16:34 +1100538 int (*load) (struct drm_device *, unsigned long flags);
539 int (*firstopen) (struct drm_device *);
540 int (*open) (struct drm_device *, drm_file_t *);
541 void (*preclose) (struct drm_device *, struct file * filp);
542 void (*postclose) (struct drm_device *, drm_file_t *);
543 void (*lastclose) (struct drm_device *);
544 int (*unload) (struct drm_device *);
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000545 int (*dma_ioctl) (DRM_IOCTL_ARGS);
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000546 void (*dma_ready) (struct drm_device *);
547 int (*dma_quiescent) (struct drm_device *);
548 int (*context_ctor) (struct drm_device * dev, int context);
549 int (*context_dtor) (struct drm_device * dev, int context);
550 int (*kernel_context_switch) (struct drm_device * dev, int old,
551 int new);
552 void (*kernel_context_switch_unlock) (struct drm_device * dev,
Dave Airlied985c102006-01-02 21:32:48 +1100553 drm_lock_t *lock);
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000554 int (*vblank_wait) (struct drm_device * dev, unsigned int *sequence);
Dave Airlie732052e2005-11-11 22:07:35 +1100555 int (*dri_library_name) (struct drm_device *dev, char *buf);
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000556
Dave Airliecda17382005-07-10 17:31:26 +1000557 /**
558 * Called by \c drm_device_is_agp. Typically used to determine if a
559 * card is really attached to AGP or not.
560 *
561 * \param dev DRM device handle
562 *
563 * \returns
564 * One of three values is returned depending on whether or not the
565 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
566 * (return of 1), or may or may not be AGP (return of 2).
567 */
568 int (*device_is_agp) (struct drm_device * dev);
569
Linus Torvalds1da177e2005-04-16 15:20:36 -0700570 /* these have to be filled in */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000571
Dave Airlie22eae942005-11-10 22:16:34 +1100572 irqreturn_t(*irq_handler) (DRM_IRQ_ARGS);
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000573 void (*irq_preinstall) (struct drm_device * dev);
574 void (*irq_postinstall) (struct drm_device * dev);
575 void (*irq_uninstall) (struct drm_device * dev);
576 void (*reclaim_buffers) (struct drm_device * dev, struct file * filp);
Dave Airlied985c102006-01-02 21:32:48 +1100577 void (*reclaim_buffers_locked) (struct drm_device *dev,
Dave Airlie22eae942005-11-10 22:16:34 +1100578 struct file *filp);
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000579 unsigned long (*get_map_ofs) (drm_map_t * map);
580 unsigned long (*get_reg_ofs) (struct drm_device * dev);
581 void (*set_version) (struct drm_device * dev, drm_set_version_t * sv);
Dave Airlie22eae942005-11-10 22:16:34 +1100582
583 int major;
584 int minor;
585 int patchlevel;
586 char *name;
587 char *desc;
588 char *date;
589
Linus Torvalds1da177e2005-04-16 15:20:36 -0700590 u32 driver_features;
591 int dev_priv_size;
592 drm_ioctl_desc_t *ioctls;
593 int num_ioctls;
594 struct file_operations fops;
595 struct pci_driver pci_driver;
596};
597
598/**
599 * DRM head structure. This structure represent a video head on a card
600 * that may contain multiple heads. Embed one per head of these in the
601 * private drm_device structure.
602 */
603typedef struct drm_head {
604 int minor; /**< Minor device number */
605 struct drm_device *dev;
606 struct proc_dir_entry *dev_root; /**< proc directory entry */
607 dev_t device; /**< Device number for mknod */
608 struct class_device *dev_class;
609} drm_head_t;
610
611/**
612 * DRM device structure. This structure represent a complete card that
613 * may contain multiple heads.
614 */
615typedef struct drm_device {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000616 char *unique; /**< Unique identifier: e.g., busid */
617 int unique_len; /**< Length of unique field */
618 char *devname; /**< For /proc/interrupts */
619 int if_version; /**< Highest interface version set */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700620
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000621 int blocked; /**< Blocked due to VC switch? */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700622
623 /** \name Locks */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000624 /*@{ */
625 spinlock_t count_lock; /**< For inuse, drm_device::open_count, drm_device::buf_use */
Dave Airlie30e2fb12006-02-02 19:37:46 +1100626 struct mutex struct_mutex; /**< For others */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000627 /*@} */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700628
629 /** \name Usage Counters */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000630 /*@{ */
631 int open_count; /**< Outstanding files open */
632 atomic_t ioctl_count; /**< Outstanding IOCTLs pending */
633 atomic_t vma_count; /**< Outstanding vma areas open */
634 int buf_use; /**< Buffers in use -- cannot alloc */
635 atomic_t buf_alloc; /**< Buffer allocation in progress */
636 /*@} */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700637
638 /** \name Performance counters */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000639 /*@{ */
640 unsigned long counters;
641 drm_stat_type_t types[15];
642 atomic_t counts[15];
643 /*@} */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700644
645 /** \name Authentication */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000646 /*@{ */
647 drm_file_t *file_first; /**< file list head */
648 drm_file_t *file_last; /**< file list tail */
649 drm_magic_head_t magiclist[DRM_HASH_SIZE]; /**< magic hash table */
650 /*@} */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700651
652 /** \name Memory management */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000653 /*@{ */
654 drm_map_list_t *maplist; /**< Linked list of regions */
655 int map_count; /**< Number of mappable regions */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700656
657 /** \name Context handle management */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000658 /*@{ */
659 drm_ctx_list_t *ctxlist; /**< Linked list of context handles */
660 int ctx_count; /**< Number of context handles */
Dave Airlie30e2fb12006-02-02 19:37:46 +1100661 struct mutex ctxlist_mutex; /**< For ctxlist */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700662
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000663 drm_map_t **context_sareas; /**< per-context SAREA's */
664 int max_context;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700665
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000666 drm_vma_entry_t *vmalist; /**< List of vmas (for debugging) */
667 drm_lock_data_t lock; /**< Information on hardware lock */
668 /*@} */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700669
670 /** \name DMA queues (contexts) */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000671 /*@{ */
672 int queue_count; /**< Number of active DMA queues */
673 int queue_reserved; /**< Number of reserved DMA queues */
674 int queue_slots; /**< Actual length of queuelist */
675 drm_queue_t **queuelist; /**< Vector of pointers to DMA queues */
676 drm_device_dma_t *dma; /**< Optional pointer for DMA support */
677 /*@} */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700678
679 /** \name Context support */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000680 /*@{ */
681 int irq; /**< Interrupt used by board */
682 int irq_enabled; /**< True if irq handler is enabled */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700683 __volatile__ long context_flag; /**< Context swapping flag */
684 __volatile__ long interrupt_flag; /**< Interruption handler flag */
685 __volatile__ long dma_flag; /**< DMA dispatch flag */
686 struct timer_list timer; /**< Timer for delaying ctx switch */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000687 wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */
688 int last_checked; /**< Last context checked for DMA */
689 int last_context; /**< Last current context */
690 unsigned long last_switch; /**< jiffies at last context switch */
691 /*@} */
692
693 struct work_struct work;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700694 /** \name VBLANK IRQ support */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000695 /*@{ */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700696
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000697 wait_queue_head_t vbl_queue; /**< VBLANK wait queue */
698 atomic_t vbl_received;
699 spinlock_t vbl_lock;
700 drm_vbl_sig_t vbl_sigs; /**< signal list to send on VBLANK */
701 unsigned int vbl_pending;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700702
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000703 /*@} */
704 cycles_t ctx_start;
705 cycles_t lck_start;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700706
Linus Torvalds1da177e2005-04-16 15:20:36 -0700707 struct fasync_struct *buf_async;/**< Processes waiting for SIGIO */
708 wait_queue_head_t buf_readers; /**< Processes waiting to read */
709 wait_queue_head_t buf_writers; /**< Processes waiting to ctx switch */
710
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000711 drm_agp_head_t *agp; /**< AGP data */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700712
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000713 struct pci_dev *pdev; /**< PCI device structure */
714 int pci_domain; /**< PCI bus domain number */
715 int pci_bus; /**< PCI bus number */
716 int pci_slot; /**< PCI slot number */
717 int pci_func; /**< PCI function number */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700718#ifdef __alpha__
Linus Torvalds1da177e2005-04-16 15:20:36 -0700719 struct pci_controller *hose;
720#endif
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000721 drm_sg_mem_t *sg; /**< Scatter gather memory */
722 unsigned long *ctx_bitmap; /**< context bitmap */
723 void *dev_private; /**< device private data */
724 drm_sigdata_t sigdata; /**< For block_all_signals */
725 sigset_t sigmask;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700726
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000727 struct drm_driver *driver;
728 drm_local_map_t *agp_buffer_map;
Dave Airlied1f2b552005-08-05 22:11:22 +1000729 unsigned int agp_buffer_token;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700730 drm_head_t primary; /**< primary screen head */
731} drm_device_t;
732
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000733static __inline__ int drm_core_check_feature(struct drm_device *dev,
734 int feature)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700735{
736 return ((dev->driver->driver_features & feature) ? 1 : 0);
737}
738
739#if __OS_HAS_AGP
740static inline int drm_core_has_AGP(struct drm_device *dev)
741{
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000742 return drm_core_check_feature(dev, DRIVER_USE_AGP);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700743}
744#else
745#define drm_core_has_AGP(dev) (0)
746#endif
747
748#if __OS_HAS_MTRR
749static inline int drm_core_has_MTRR(struct drm_device *dev)
750{
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000751 return drm_core_check_feature(dev, DRIVER_USE_MTRR);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700752}
Dave Airlie269dc512006-01-02 16:23:01 +1100753
754#define DRM_MTRR_WC MTRR_TYPE_WRCOMB
755
756static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
757 unsigned int flags)
758{
759 return mtrr_add(offset, size, flags, 1);
760}
761
762static inline int drm_mtrr_del(int handle, unsigned long offset,
763 unsigned long size, unsigned int flags)
764{
765 return mtrr_del(handle, offset, size);
766}
767
Linus Torvalds1da177e2005-04-16 15:20:36 -0700768#else
769#define drm_core_has_MTRR(dev) (0)
Dave Airlie9c7d4622006-01-12 20:44:30 +1100770
771#define DRM_MTRR_WC 0
772
773static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
774 unsigned int flags)
775{
776 return 0;
777}
778
779static inline int drm_mtrr_del(int handle, unsigned long offset,
780 unsigned long size, unsigned int flags)
781{
782 return 0;
783}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700784#endif
785
786/******************************************************************/
787/** \name Internal function definitions */
788/*@{*/
789
Linus Torvalds1da177e2005-04-16 15:20:36 -0700790 /* Driver support (drm_drv.h) */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000791extern int drm_init(struct drm_driver *driver);
792extern void drm_exit(struct drm_driver *driver);
793extern int drm_ioctl(struct inode *inode, struct file *filp,
794 unsigned int cmd, unsigned long arg);
795extern long drm_compat_ioctl(struct file *filp,
796 unsigned int cmd, unsigned long arg);
Dave Airlie22eae942005-11-10 22:16:34 +1100797extern int drm_lastclose(drm_device_t *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700798
799 /* Device support (drm_fops.h) */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000800extern int drm_open(struct inode *inode, struct file *filp);
801extern int drm_stub_open(struct inode *inode, struct file *filp);
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000802extern int drm_fasync(int fd, struct file *filp, int on);
803extern int drm_release(struct inode *inode, struct file *filp);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700804
805 /* Mapping support (drm_vm.h) */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000806extern int drm_mmap(struct file *filp, struct vm_area_struct *vma);
807extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700808
809 /* Memory management support (drm_memory.h) */
810#include "drm_memory.h"
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000811extern void drm_mem_init(void);
812extern int drm_mem_info(char *buf, char **start, off_t offset,
813 int request, int *eof, void *data);
814extern void *drm_realloc(void *oldpt, size_t oldsize, size_t size, int area);
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000815extern void *drm_ioremap(unsigned long offset, unsigned long size,
816 drm_device_t * dev);
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000817extern void drm_ioremapfree(void *pt, unsigned long size, drm_device_t * dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700818
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000819extern DRM_AGP_MEM *drm_alloc_agp(drm_device_t * dev, int pages, u32 type);
820extern int drm_free_agp(DRM_AGP_MEM * handle, int pages);
821extern int drm_bind_agp(DRM_AGP_MEM * handle, unsigned int start);
822extern int drm_unbind_agp(DRM_AGP_MEM * handle);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700823
824 /* Misc. IOCTL support (drm_ioctl.h) */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000825extern int drm_irq_by_busid(struct inode *inode, struct file *filp,
826 unsigned int cmd, unsigned long arg);
827extern int drm_getunique(struct inode *inode, struct file *filp,
828 unsigned int cmd, unsigned long arg);
829extern int drm_setunique(struct inode *inode, struct file *filp,
830 unsigned int cmd, unsigned long arg);
831extern int drm_getmap(struct inode *inode, struct file *filp,
832 unsigned int cmd, unsigned long arg);
833extern int drm_getclient(struct inode *inode, struct file *filp,
834 unsigned int cmd, unsigned long arg);
835extern int drm_getstats(struct inode *inode, struct file *filp,
836 unsigned int cmd, unsigned long arg);
837extern int drm_setversion(struct inode *inode, struct file *filp,
838 unsigned int cmd, unsigned long arg);
Dave Airlied985c102006-01-02 21:32:48 +1100839extern int drm_noop(struct inode *inode, struct file *filp,
840 unsigned int cmd, unsigned long arg);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700841
842 /* Context IOCTL support (drm_context.h) */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000843extern int drm_resctx(struct inode *inode, struct file *filp,
844 unsigned int cmd, unsigned long arg);
845extern int drm_addctx(struct inode *inode, struct file *filp,
846 unsigned int cmd, unsigned long arg);
847extern int drm_modctx(struct inode *inode, struct file *filp,
848 unsigned int cmd, unsigned long arg);
849extern int drm_getctx(struct inode *inode, struct file *filp,
850 unsigned int cmd, unsigned long arg);
851extern int drm_switchctx(struct inode *inode, struct file *filp,
852 unsigned int cmd, unsigned long arg);
853extern int drm_newctx(struct inode *inode, struct file *filp,
854 unsigned int cmd, unsigned long arg);
855extern int drm_rmctx(struct inode *inode, struct file *filp,
856 unsigned int cmd, unsigned long arg);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700857
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000858extern int drm_ctxbitmap_init(drm_device_t * dev);
859extern void drm_ctxbitmap_cleanup(drm_device_t * dev);
860extern void drm_ctxbitmap_free(drm_device_t * dev, int ctx_handle);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700861
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000862extern int drm_setsareactx(struct inode *inode, struct file *filp,
863 unsigned int cmd, unsigned long arg);
864extern int drm_getsareactx(struct inode *inode, struct file *filp,
865 unsigned int cmd, unsigned long arg);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700866
867 /* Drawable IOCTL support (drm_drawable.h) */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000868extern int drm_adddraw(struct inode *inode, struct file *filp,
869 unsigned int cmd, unsigned long arg);
870extern int drm_rmdraw(struct inode *inode, struct file *filp,
871 unsigned int cmd, unsigned long arg);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700872
873 /* Authentication IOCTL support (drm_auth.h) */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000874extern int drm_getmagic(struct inode *inode, struct file *filp,
875 unsigned int cmd, unsigned long arg);
876extern int drm_authmagic(struct inode *inode, struct file *filp,
877 unsigned int cmd, unsigned long arg);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700878
Linus Torvalds1da177e2005-04-16 15:20:36 -0700879 /* Locking IOCTL support (drm_lock.h) */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000880extern int drm_lock(struct inode *inode, struct file *filp,
881 unsigned int cmd, unsigned long arg);
882extern int drm_unlock(struct inode *inode, struct file *filp,
883 unsigned int cmd, unsigned long arg);
884extern int drm_lock_take(__volatile__ unsigned int *lock, unsigned int context);
885extern int drm_lock_free(drm_device_t * dev,
886 __volatile__ unsigned int *lock, unsigned int context);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700887
888 /* Buffer management support (drm_bufs.h) */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000889extern int drm_addbufs_agp(drm_device_t * dev, drm_buf_desc_t * request);
890extern int drm_addbufs_pci(drm_device_t * dev, drm_buf_desc_t * request);
891extern int drm_addmap(drm_device_t * dev, unsigned int offset,
Dave Airlie7ab98402005-07-10 16:56:52 +1000892 unsigned int size, drm_map_type_t type,
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000893 drm_map_flags_t flags, drm_local_map_t ** map_ptr);
Dave Airlie7ab98402005-07-10 16:56:52 +1000894extern int drm_addmap_ioctl(struct inode *inode, struct file *filp,
895 unsigned int cmd, unsigned long arg);
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000896extern int drm_rmmap(drm_device_t * dev, drm_local_map_t * map);
897extern int drm_rmmap_locked(drm_device_t * dev, drm_local_map_t * map);
Dave Airlie7ab98402005-07-10 16:56:52 +1000898extern int drm_rmmap_ioctl(struct inode *inode, struct file *filp,
899 unsigned int cmd, unsigned long arg);
900
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000901extern int drm_order(unsigned long size);
902extern int drm_addbufs(struct inode *inode, struct file *filp,
903 unsigned int cmd, unsigned long arg);
904extern int drm_infobufs(struct inode *inode, struct file *filp,
905 unsigned int cmd, unsigned long arg);
906extern int drm_markbufs(struct inode *inode, struct file *filp,
907 unsigned int cmd, unsigned long arg);
908extern int drm_freebufs(struct inode *inode, struct file *filp,
909 unsigned int cmd, unsigned long arg);
910extern int drm_mapbufs(struct inode *inode, struct file *filp,
911 unsigned int cmd, unsigned long arg);
912extern unsigned long drm_get_resource_start(drm_device_t * dev,
Dave Airlie836cf042005-07-10 19:27:04 +1000913 unsigned int resource);
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000914extern unsigned long drm_get_resource_len(drm_device_t * dev,
Dave Airlie836cf042005-07-10 19:27:04 +1000915 unsigned int resource);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700916
917 /* DMA support (drm_dma.h) */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000918extern int drm_dma_setup(drm_device_t * dev);
919extern void drm_dma_takedown(drm_device_t * dev);
920extern void drm_free_buffer(drm_device_t * dev, drm_buf_t * buf);
921extern void drm_core_reclaim_buffers(drm_device_t * dev, struct file *filp);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700922
923 /* IRQ support (drm_irq.h) */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000924extern int drm_control(struct inode *inode, struct file *filp,
925 unsigned int cmd, unsigned long arg);
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000926extern irqreturn_t drm_irq_handler(DRM_IRQ_ARGS);
Dave Airlied985c102006-01-02 21:32:48 +1100927extern int drm_irq_uninstall(drm_device_t * dev);
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000928extern void drm_driver_irq_preinstall(drm_device_t * dev);
929extern void drm_driver_irq_postinstall(drm_device_t * dev);
930extern void drm_driver_irq_uninstall(drm_device_t * dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700931
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000932extern int drm_wait_vblank(struct inode *inode, struct file *filp,
933 unsigned int cmd, unsigned long arg);
934extern int drm_vblank_wait(drm_device_t * dev, unsigned int *vbl_seq);
935extern void drm_vbl_send_signals(drm_device_t * dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700936
937 /* AGP/GART support (drm_agpsupport.h) */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000938extern drm_agp_head_t *drm_agp_init(drm_device_t * dev);
Dave Airlie7ab98402005-07-10 16:56:52 +1000939extern int drm_agp_acquire(drm_device_t * dev);
940extern int drm_agp_acquire_ioctl(struct inode *inode, struct file *filp,
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000941 unsigned int cmd, unsigned long arg);
942extern int drm_agp_release(drm_device_t * dev);
Dave Airlie7ab98402005-07-10 16:56:52 +1000943extern int drm_agp_release_ioctl(struct inode *inode, struct file *filp,
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000944 unsigned int cmd, unsigned long arg);
945extern int drm_agp_enable(drm_device_t * dev, drm_agp_mode_t mode);
Dave Airlie7ab98402005-07-10 16:56:52 +1000946extern int drm_agp_enable_ioctl(struct inode *inode, struct file *filp,
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000947 unsigned int cmd, unsigned long arg);
948extern int drm_agp_info(drm_device_t * dev, drm_agp_info_t * info);
Dave Airlie7ab98402005-07-10 16:56:52 +1000949extern int drm_agp_info_ioctl(struct inode *inode, struct file *filp,
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000950 unsigned int cmd, unsigned long arg);
Dave Airlieefa58392005-11-11 22:33:39 +1100951extern int drm_agp_alloc(drm_device_t *dev, drm_agp_buffer_t *request);
952extern int drm_agp_alloc_ioctl(struct inode *inode, struct file *filp,
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000953 unsigned int cmd, unsigned long arg);
Dave Airlieefa58392005-11-11 22:33:39 +1100954extern int drm_agp_free(drm_device_t *dev, drm_agp_buffer_t *request);
955extern int drm_agp_free_ioctl(struct inode *inode, struct file *filp,
Dave Airlie7ab98402005-07-10 16:56:52 +1000956 unsigned int cmd, unsigned long arg);
Dave Airlieefa58392005-11-11 22:33:39 +1100957extern int drm_agp_unbind(drm_device_t *dev, drm_agp_binding_t *request);
958extern int drm_agp_unbind_ioctl(struct inode *inode, struct file *filp,
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000959 unsigned int cmd, unsigned long arg);
Dave Airlieefa58392005-11-11 22:33:39 +1100960extern int drm_agp_bind(drm_device_t *dev, drm_agp_binding_t *request);
961extern int drm_agp_bind_ioctl(struct inode *inode, struct file *filp,
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000962 unsigned int cmd, unsigned long arg);
963extern DRM_AGP_MEM *drm_agp_allocate_memory(struct agp_bridge_data *bridge,
964 size_t pages, u32 type);
965extern int drm_agp_free_memory(DRM_AGP_MEM * handle);
966extern int drm_agp_bind_memory(DRM_AGP_MEM * handle, off_t start);
967extern int drm_agp_unbind_memory(DRM_AGP_MEM * handle);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700968
969 /* Stub support (drm_stub.h) */
970extern int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000971 struct drm_driver *driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700972extern int drm_put_dev(drm_device_t * dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700973extern int drm_put_head(drm_head_t * head);
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000974extern unsigned int drm_debug;
975extern unsigned int drm_cards_limit;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700976extern drm_head_t **drm_heads;
Greg Kroah-Hartman0650fd52006-01-20 14:08:59 -0800977extern struct class *drm_class;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700978extern struct proc_dir_entry *drm_proc_root;
979
980 /* Proc support (drm_proc.h) */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000981extern int drm_proc_init(drm_device_t * dev,
982 int minor,
983 struct proc_dir_entry *root,
984 struct proc_dir_entry **dev_root);
985extern int drm_proc_cleanup(int minor,
986 struct proc_dir_entry *root,
987 struct proc_dir_entry *dev_root);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700988
989 /* Scatter Gather Support (drm_scatter.h) */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000990extern void drm_sg_cleanup(drm_sg_mem_t * entry);
991extern int drm_sg_alloc(struct inode *inode, struct file *filp,
992 unsigned int cmd, unsigned long arg);
993extern int drm_sg_free(struct inode *inode, struct file *filp,
994 unsigned int cmd, unsigned long arg);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700995
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000996 /* ATI PCIGART support (ati_pcigart.h) */
997extern int drm_ati_pcigart_init(drm_device_t * dev,
998 drm_ati_pcigart_info * gart_info);
999extern int drm_ati_pcigart_cleanup(drm_device_t * dev,
1000 drm_ati_pcigart_info * gart_info);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001001
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001002extern drm_dma_handle_t *drm_pci_alloc(drm_device_t * dev, size_t size,
Dave Airlie9c8da5e2005-07-10 15:38:56 +10001003 size_t align, dma_addr_t maxaddr);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001004extern void __drm_pci_free(drm_device_t * dev, drm_dma_handle_t * dmah);
1005extern void drm_pci_free(drm_device_t * dev, drm_dma_handle_t * dmah);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001006
1007 /* sysfs support (drm_sysfs.c) */
Greg Kroah-Hartman0650fd52006-01-20 14:08:59 -08001008extern struct class *drm_sysfs_create(struct module *owner, char *name);
1009extern void drm_sysfs_destroy(struct class *cs);
1010extern struct class_device *drm_sysfs_device_add(struct class *cs,
Dave Airlie732052e2005-11-11 22:07:35 +11001011 drm_head_t *head);
1012extern void drm_sysfs_device_remove(struct class_device *class_dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001013
Linus Torvalds1da177e2005-04-16 15:20:36 -07001014/* Inline replacements for DRM_IOREMAP macros */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001015static __inline__ void drm_core_ioremap(struct drm_map *map,
1016 struct drm_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001017{
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001018 map->handle = drm_ioremap(map->offset, map->size, dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001019}
1020
Adrian Bunk031de962006-04-10 23:18:27 -07001021#if 0
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001022static __inline__ void drm_core_ioremap_nocache(struct drm_map *map,
1023 struct drm_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001024{
1025 map->handle = drm_ioremap_nocache(map->offset, map->size, dev);
1026}
Adrian Bunk031de962006-04-10 23:18:27 -07001027#endif /* 0 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001028
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001029static __inline__ void drm_core_ioremapfree(struct drm_map *map,
1030 struct drm_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001031{
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001032 if (map->handle && map->size)
1033 drm_ioremapfree(map->handle, map->size, dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001034}
1035
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001036static __inline__ struct drm_map *drm_core_findmap(struct drm_device *dev,
1037 unsigned int token)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001038{
Dave Airlied1f2b552005-08-05 22:11:22 +10001039 drm_map_list_t *_entry;
1040 list_for_each_entry(_entry, &dev->maplist->head, head)
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001041 if (_entry->user_token == token)
1042 return _entry->map;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001043 return NULL;
1044}
1045
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001046static __inline__ int drm_device_is_agp(drm_device_t * dev)
Dave Airliecda17382005-07-10 17:31:26 +10001047{
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001048 if (dev->driver->device_is_agp != NULL) {
1049 int err = (*dev->driver->device_is_agp) (dev);
1050
Dave Airliecda17382005-07-10 17:31:26 +10001051 if (err != 2) {
1052 return err;
1053 }
1054 }
1055
1056 return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP);
1057}
1058
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001059static __inline__ int drm_device_is_pcie(drm_device_t * dev)
Dave Airlieea98a922005-09-11 20:28:11 +10001060{
1061 return pci_find_capability(dev->pdev, PCI_CAP_ID_EXP);
1062}
1063
Linus Torvalds1da177e2005-04-16 15:20:36 -07001064static __inline__ void drm_core_dropmap(struct drm_map *map)
1065{
1066}
1067
1068#ifndef DEBUG_MEMORY
1069/** Wrapper around kmalloc() */
1070static __inline__ void *drm_alloc(size_t size, int area)
1071{
1072 return kmalloc(size, GFP_KERNEL);
1073}
1074
1075/** Wrapper around kfree() */
1076static __inline__ void drm_free(void *pt, size_t size, int area)
1077{
1078 kfree(pt);
1079}
Dave Airlieb9523242005-07-07 20:33:26 +10001080
1081/** Wrapper around kcalloc() */
1082static __inline__ void *drm_calloc(size_t nmemb, size_t size, int area)
1083{
1084 return kcalloc(nmemb, size, GFP_KERNEL);
1085}
Linus Torvalds1da177e2005-04-16 15:20:36 -07001086#else
1087extern void *drm_alloc(size_t size, int area);
1088extern void drm_free(void *pt, size_t size, int area);
Dave Airlieb9523242005-07-07 20:33:26 +10001089extern void *drm_calloc(size_t nmemb, size_t size, int area);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001090#endif
1091
1092/*@}*/
1093
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001094extern unsigned long drm_core_get_map_ofs(drm_map_t * map);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001095extern unsigned long drm_core_get_reg_ofs(struct drm_device *dev);
1096
Adrian Bunk982245f2005-07-17 04:22:20 +02001097#ifndef pci_pretty_name
1098#define pci_pretty_name(dev) ""
1099#endif
1100
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001101#endif /* __KERNEL__ */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001102#endif