blob: d5e8e5c8954825baaf69564e07716dd041ed0593 [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 */
Dave Airlieb05c2382008-03-17 10:24:24 +100057#include <linux/dma-mapping.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070058#include <linux/mm.h>
59#include <linux/cdev.h>
Dave Airlie30e2fb12006-02-02 19:37:46 +110060#include <linux/mutex.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070061#if defined(__alpha__) || defined(__powerpc__)
Dave Airlieb5e89ed2005-09-25 14:28:13 +100062#include <asm/pgtable.h> /* For pte_wrprotect */
Linus Torvalds1da177e2005-04-16 15:20:36 -070063#endif
64#include <asm/io.h>
65#include <asm/mman.h>
66#include <asm/uaccess.h>
67#ifdef CONFIG_MTRR
68#include <asm/mtrr.h>
69#endif
70#if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
71#include <linux/types.h>
72#include <linux/agp_backend.h>
73#endif
74#include <linux/workqueue.h>
75#include <linux/poll.h>
76#include <asm/pgalloc.h>
77#include "drm.h"
78
Dave Airlie62968142007-07-17 10:46:52 +100079#include <linux/idr.h>
80
Linus Torvalds1da177e2005-04-16 15:20:36 -070081#define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE)))
82#define __OS_HAS_MTRR (defined(CONFIG_MTRR))
83
Eric Anholtc153f452007-09-03 12:06:45 +100084struct drm_file;
85struct drm_device;
86
Linus Torvalds1da177e2005-04-16 15:20:36 -070087#include "drm_os_linux.h"
Thomas Hellstrom3a1bd922006-08-07 21:30:28 +100088#include "drm_hashtab.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070089
90/***********************************************************************/
91/** \name DRM template customization defaults */
92/*@{*/
93
94/* driver capabilities and requirements mask */
95#define DRIVER_USE_AGP 0x1
96#define DRIVER_REQUIRE_AGP 0x2
97#define DRIVER_USE_MTRR 0x4
98#define DRIVER_PCI_DMA 0x8
99#define DRIVER_SG 0x10
100#define DRIVER_HAVE_DMA 0x20
101#define DRIVER_HAVE_IRQ 0x40
102#define DRIVER_IRQ_SHARED 0x80
Dave Airlieaf6061a2008-05-07 12:15:39 +1000103#define DRIVER_IRQ_VBL 0x100
Linus Torvalds1da177e2005-04-16 15:20:36 -0700104#define DRIVER_DMA_QUEUE 0x200
Dave Airlieb84397d62005-07-10 14:46:12 +1000105#define DRIVER_FB_DMA 0x400
Dave Airlieaf6061a2008-05-07 12:15:39 +1000106#define DRIVER_IRQ_VBL2 0x800
Eric Anholt673a3942008-07-30 12:06:12 -0700107#define DRIVER_GEM 0x1000
Linus Torvalds1da177e2005-04-16 15:20:36 -0700108
109/***********************************************************************/
110/** \name Begin the DRM... */
111/*@{*/
112
113#define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then
114 also include looping detection. */
115
Thomas Hellstrom8669cbc2006-08-07 22:22:10 +1000116#define DRM_MAGIC_HASH_ORDER 4 /**< Size of key hash table. Must be power of 2. */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700117#define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */
118#define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */
119#define DRM_LOOPING_LIMIT 5000000
Linus Torvalds1da177e2005-04-16 15:20:36 -0700120#define DRM_TIME_SLICE (HZ/20) /**< Time slice for GLXContexts */
121#define DRM_LOCK_SLICE 1 /**< Time slice for lock, in jiffies */
122
123#define DRM_FLAG_DEBUG 0x01
124
125#define DRM_MEM_DMA 0
126#define DRM_MEM_SAREA 1
127#define DRM_MEM_DRIVER 2
128#define DRM_MEM_MAGIC 3
129#define DRM_MEM_IOCTLS 4
130#define DRM_MEM_MAPS 5
131#define DRM_MEM_VMAS 6
132#define DRM_MEM_BUFS 7
133#define DRM_MEM_SEGS 8
134#define DRM_MEM_PAGES 9
135#define DRM_MEM_FILES 10
136#define DRM_MEM_QUEUES 11
137#define DRM_MEM_CMDS 12
138#define DRM_MEM_MAPPINGS 13
139#define DRM_MEM_BUFLISTS 14
140#define DRM_MEM_AGPLISTS 15
141#define DRM_MEM_TOTALAGP 16
142#define DRM_MEM_BOUNDAGP 17
143#define DRM_MEM_CTXBITMAP 18
144#define DRM_MEM_STUB 19
145#define DRM_MEM_SGLISTS 20
Thomas Hellstrom3a1bd922006-08-07 21:30:28 +1000146#define DRM_MEM_CTXLIST 21
147#define DRM_MEM_MM 22
148#define DRM_MEM_HASHTAB 23
Linus Torvalds1da177e2005-04-16 15:20:36 -0700149
150#define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
Thomas Hellstrom8d153f72006-08-07 22:36:47 +1000151#define DRM_MAP_HASH_OFFSET 0x10000000
Linus Torvalds1da177e2005-04-16 15:20:36 -0700152
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000153/*@}*/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700154
155/***********************************************************************/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700156/** \name Macros to make printk easier */
157/*@{*/
158
159/**
160 * Error output.
161 *
162 * \param fmt printf() like format string.
163 * \param arg arguments
164 */
165#define DRM_ERROR(fmt, arg...) \
Harvey Harrisonbf9d8922008-04-30 00:55:10 -0700166 printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* " fmt , __func__ , ##arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700167
168/**
169 * Memory error output.
170 *
171 * \param area memory area where the error occurred.
172 * \param fmt printf() like format string.
173 * \param arg arguments
174 */
175#define DRM_MEM_ERROR(area, fmt, arg...) \
Harvey Harrisonbf9d8922008-04-30 00:55:10 -0700176 printk(KERN_ERR "[" DRM_NAME ":%s:%s] *ERROR* " fmt , __func__, \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700177 drm_mem_stats[area].name , ##arg)
178
179#define DRM_INFO(fmt, arg...) printk(KERN_INFO "[" DRM_NAME "] " fmt , ##arg)
180
181/**
182 * Debug output.
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000183 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700184 * \param fmt printf() like format string.
185 * \param arg arguments
186 */
187#if DRM_DEBUG_CODE
188#define DRM_DEBUG(fmt, arg...) \
189 do { \
190 if ( drm_debug ) \
191 printk(KERN_DEBUG \
192 "[" DRM_NAME ":%s] " fmt , \
Harvey Harrisonbf9d8922008-04-30 00:55:10 -0700193 __func__ , ##arg); \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700194 } while (0)
195#else
196#define DRM_DEBUG(fmt, arg...) do { } while (0)
197#endif
198
199#define DRM_PROC_LIMIT (PAGE_SIZE-80)
200
201#define DRM_PROC_PRINT(fmt, arg...) \
202 len += sprintf(&buf[len], fmt , ##arg); \
203 if (len > DRM_PROC_LIMIT) { *eof = 1; return len - offset; }
204
205#define DRM_PROC_PRINT_RET(ret, fmt, arg...) \
206 len += sprintf(&buf[len], fmt , ##arg); \
207 if (len > DRM_PROC_LIMIT) { ret; *eof = 1; return len - offset; }
208
209/*@}*/
210
Linus Torvalds1da177e2005-04-16 15:20:36 -0700211/***********************************************************************/
212/** \name Internal types and structures */
213/*@{*/
214
Dave Airlie99a26572005-09-25 13:25:41 +1000215#define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x)
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 */
Eric Anholtc153f452007-09-03 12:06:45 +1000239#define LOCK_TEST_WITH_RETURN( dev, file_priv ) \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700240do { \
241 if ( !_DRM_LOCK_IS_HELD( dev->lock.hw_lock->lock ) || \
Eric Anholtc153f452007-09-03 12:06:45 +1000242 dev->lock.file_priv != file_priv ) { \
243 DRM_ERROR( "%s called without lock held, held %d owner %p %p\n",\
Harvey Harrisonbf9d8922008-04-30 00:55:10 -0700244 __func__, _DRM_LOCK_IS_HELD( dev->lock.hw_lock->lock ),\
Eric Anholtc153f452007-09-03 12:06:45 +1000245 dev->lock.file_priv, file_priv ); \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700246 return -EINVAL; \
247 } \
248} while (0)
249
250/**
251 * Copy and IOCTL return string to user space
252 */
253#define DRM_COPY( name, value ) \
254 len = strlen( value ); \
255 if ( len > name##_len ) len = name##_len; \
256 name##_len = strlen( value ); \
257 if ( len && name ) { \
258 if ( copy_to_user( name, value, len ) ) \
259 return -EFAULT; \
260 }
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000261
Linus Torvalds1da177e2005-04-16 15:20:36 -0700262/**
263 * Ioctl function type.
264 *
265 * \param inode device inode.
Eric Anholt6c340ea2007-08-25 20:23:09 +1000266 * \param file_priv DRM file private pointer.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700267 * \param cmd command.
268 * \param arg argument.
269 */
Eric Anholtc153f452007-09-03 12:06:45 +1000270typedef int drm_ioctl_t(struct drm_device *dev, void *data,
271 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700272
Dave Airlie9a186642005-06-23 21:29:18 +1000273typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
274 unsigned long arg);
275
Dave Airliea7a2cc32006-01-02 13:54:04 +1100276#define DRM_AUTH 0x1
277#define DRM_MASTER 0x2
278#define DRM_ROOT_ONLY 0x4
279
Eric Anholtc153f452007-09-03 12:06:45 +1000280struct drm_ioctl_desc {
281 unsigned int cmd;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000282 drm_ioctl_t *func;
Dave Airliea7a2cc32006-01-02 13:54:04 +1100283 int flags;
Eric Anholtc153f452007-09-03 12:06:45 +1000284};
285
286/**
287 * Creates a driver or general drm_ioctl_desc array entry for the given
288 * ioctl, for use by drm_ioctl().
289 */
290#define DRM_IOCTL_DEF(ioctl, func, flags) \
291 [DRM_IOCTL_NR(ioctl)] = {ioctl, func, flags}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700292
Dave Airlie8fc2fdf2007-07-11 16:21:47 +1000293struct drm_magic_entry {
Thomas Hellstrom8669cbc2006-08-07 22:22:10 +1000294 struct list_head head;
Dave Airliee0be4282007-07-12 10:26:44 +1000295 struct drm_hash_item hash_item;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000296 struct drm_file *priv;
Dave Airlie8fc2fdf2007-07-11 16:21:47 +1000297};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700298
Dave Airlie8fc2fdf2007-07-11 16:21:47 +1000299struct drm_vma_entry {
Dave Airliebd1b3312007-05-26 05:01:51 +1000300 struct list_head head;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700301 struct vm_area_struct *vma;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000302 pid_t pid;
Dave Airlie8fc2fdf2007-07-11 16:21:47 +1000303};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700304
305/**
306 * DMA buffer.
307 */
Dave Airlie056219e2007-07-11 16:17:42 +1000308struct 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 */
Eric Anholt6c340ea2007-08-25 20:23:09 +1000320 struct drm_file *file_priv; /**< Private of holding file descr */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000321 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 */
Dave Airlie056219e2007-07-11 16:17:42 +1000334};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700335
Linus Torvalds1da177e2005-04-16 15:20:36 -0700336/** bufs is one longer than it has to be */
Dave Airliecdd55a22007-07-11 16:32:08 +1000337struct drm_waitlist {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000338 int count; /**< Number of possible buffers */
Dave Airlie056219e2007-07-11 16:17:42 +1000339 struct drm_buf **bufs; /**< List of pointers to buffers */
340 struct drm_buf **rp; /**< Read pointer */
341 struct drm_buf **wp; /**< Write pointer */
342 struct drm_buf **end; /**< End pointer */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000343 spinlock_t read_lock;
344 spinlock_t write_lock;
Dave Airliecdd55a22007-07-11 16:32:08 +1000345};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700346
Dave Airliecdd55a22007-07-11 16:32:08 +1000347struct drm_freelist {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000348 int initialized; /**< Freelist in use */
349 atomic_t count; /**< Number of free buffers */
Dave Airlie056219e2007-07-11 16:17:42 +1000350 struct drm_buf *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;
Dave Airliecdd55a22007-07-11 16:32:08 +1000357};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700358
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 */
Dave Airliecdd55a22007-07-11 16:32:08 +1000368struct drm_buf_entry {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000369 int buf_size; /**< size */
370 int buf_count; /**< number of buffers */
Dave Airlie056219e2007-07-11 16:17:42 +1000371 struct drm_buf *buflist; /**< buffer list */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000372 int seg_count;
373 int page_order;
Dave Airliecdd55a22007-07-11 16:32:08 +1000374 struct drm_dma_handle **seglist;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700375
Dave Airliecdd55a22007-07-11 16:32:08 +1000376 struct drm_freelist freelist;
377};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700378
379/** File private data */
Dave Airlie84b1fd12007-07-11 15:53:27 +1000380struct 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 pid_t pid;
384 uid_t uid;
385 drm_magic_t magic;
386 unsigned long ioctl_count;
Dave Airliebd1b3312007-05-26 05:01:51 +1000387 struct list_head lhead;
Dave Airlie2c14f282008-04-21 16:47:32 +1000388 struct drm_minor *minor;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000389 int remove_auth_on_close;
390 unsigned long lock_count;
Eric Anholt673a3942008-07-30 12:06:12 -0700391 /** Mapping of mm object handles to object pointers. */
392 struct idr object_idr;
393 /** Lock for synchronization of access to object_idr. */
394 spinlock_t table_lock;
Eric Anholt6c340ea2007-08-25 20:23:09 +1000395 struct file *filp;
Dave Airlie8562b3f2007-11-05 12:37:41 +1000396 void *driver_priv;
Dave Airlie84b1fd12007-07-11 15:53:27 +1000397};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700398
399/** Wait queue */
Dave Airliecdd55a22007-07-11 16:32:08 +1000400struct drm_queue {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000401 atomic_t use_count; /**< Outstanding uses (+1) */
402 atomic_t finalization; /**< Finalization in progress */
403 atomic_t block_count; /**< Count of processes waiting */
404 atomic_t block_read; /**< Queue blocked for reads */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700405 wait_queue_head_t read_queue; /**< Processes waiting on block_read */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000406 atomic_t block_write; /**< Queue blocked for writes */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700407 wait_queue_head_t write_queue; /**< Processes waiting on block_write */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000408 atomic_t total_queued; /**< Total queued statistic */
409 atomic_t total_flushed; /**< Total flushes statistic */
410 atomic_t total_locks; /**< Total locks statistics */
Dave Airliec60ce622007-07-11 15:27:12 +1000411 enum drm_ctx_flags flags; /**< Context preserving and 2D-only */
Dave Airliecdd55a22007-07-11 16:32:08 +1000412 struct drm_waitlist waitlist; /**< Pending buffers */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700413 wait_queue_head_t flush_queue; /**< Processes waiting until flush */
Dave Airliecdd55a22007-07-11 16:32:08 +1000414};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700415
416/**
417 * Lock data.
418 */
Dave Airlie55910512007-07-11 16:53:40 +1000419struct drm_lock_data {
Dave Airliec60ce622007-07-11 15:27:12 +1000420 struct drm_hw_lock *hw_lock; /**< Hardware lock */
Dave Airlie8562b3f2007-11-05 12:37:41 +1000421 /** Private of lock holder's file (NULL=kernel) */
422 struct drm_file *file_priv;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700423 wait_queue_head_t lock_queue; /**< Queue of blocked processes */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000424 unsigned long lock_time; /**< Time of last lock in jiffies */
Thomas Hellstrom040ac322007-03-23 13:28:33 +1100425 spinlock_t spinlock;
426 uint32_t kernel_waiters;
427 uint32_t user_waiters;
428 int idle_has_lock;
Dave Airlie55910512007-07-11 16:53:40 +1000429};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700430
431/**
432 * DMA data.
433 */
Dave Airliecdd55a22007-07-11 16:32:08 +1000434struct drm_device_dma {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700435
Dave Airliecdd55a22007-07-11 16:32:08 +1000436 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000437 int buf_count; /**< total number of buffers */
Dave Airlie056219e2007-07-11 16:17:42 +1000438 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000439 int seg_count;
440 int page_count; /**< number of pages */
441 unsigned long *pagelist; /**< page list */
442 unsigned long byte_count;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700443 enum {
444 _DRM_DMA_USE_AGP = 0x01,
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000445 _DRM_DMA_USE_SG = 0x02,
George Sapountzis3417f332006-10-24 12:03:04 -0700446 _DRM_DMA_USE_FB = 0x04,
447 _DRM_DMA_USE_PCI_RO = 0x08
Linus Torvalds1da177e2005-04-16 15:20:36 -0700448 } flags;
449
Dave Airliecdd55a22007-07-11 16:32:08 +1000450};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700451
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000452/**
Linus Torvalds1da177e2005-04-16 15:20:36 -0700453 * AGP memory entry. Stored as a doubly linked list.
454 */
Dave Airlie55910512007-07-11 16:53:40 +1000455struct drm_agp_mem {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000456 unsigned long handle; /**< handle */
457 DRM_AGP_MEM *memory;
458 unsigned long bound; /**< address */
459 int pages;
Dave Airliebd1b3312007-05-26 05:01:51 +1000460 struct list_head head;
Dave Airlie55910512007-07-11 16:53:40 +1000461};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700462
463/**
464 * AGP data.
465 *
466 * \sa drm_agp_init() and drm_device::agp.
467 */
Dave Airlie55910512007-07-11 16:53:40 +1000468struct drm_agp_head {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000469 DRM_AGP_KERN agp_info; /**< AGP device information */
Dave Airliebd1b3312007-05-26 05:01:51 +1000470 struct list_head memory;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000471 unsigned long mode; /**< AGP mode */
472 struct agp_bridge_data *bridge;
473 int enabled; /**< whether the AGP bus as been enabled */
474 int acquired; /**< whether the AGP device has been acquired */
475 unsigned long base;
476 int agp_mtrr;
477 int cant_use_aperture;
478 unsigned long page_mask;
Dave Airlie55910512007-07-11 16:53:40 +1000479};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700480
481/**
482 * Scatter-gather memory.
483 */
Dave Airlie55910512007-07-11 16:53:40 +1000484struct drm_sg_mem {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000485 unsigned long handle;
486 void *virtual;
487 int pages;
488 struct page **pagelist;
489 dma_addr_t *busaddr;
Dave Airlie55910512007-07-11 16:53:40 +1000490};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700491
Dave Airlie55910512007-07-11 16:53:40 +1000492struct drm_sigdata {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000493 int context;
Dave Airliec60ce622007-07-11 15:27:12 +1000494 struct drm_hw_lock *lock;
Dave Airlie55910512007-07-11 16:53:40 +1000495};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700496
Dave Airlie8562b3f2007-11-05 12:37:41 +1000497
498/*
499 * Generic memory manager structs
500 */
501
502struct drm_mm_node {
503 struct list_head fl_entry;
504 struct list_head ml_entry;
505 int free;
506 unsigned long start;
507 unsigned long size;
508 struct drm_mm *mm;
509 void *private;
510};
511
512struct drm_mm {
513 struct list_head fl_entry;
514 struct list_head ml_entry;
515};
516
517
Linus Torvalds1da177e2005-04-16 15:20:36 -0700518/**
519 * Mappings list
520 */
Dave Airlie55910512007-07-11 16:53:40 +1000521struct drm_map_list {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000522 struct list_head head; /**< list head */
Dave Airliee0be4282007-07-12 10:26:44 +1000523 struct drm_hash_item hash;
Dave Airliec60ce622007-07-11 15:27:12 +1000524 struct drm_map *map; /**< mapping */
Dave Airlie8562b3f2007-11-05 12:37:41 +1000525 uint64_t user_token;
Dave Airlie55910512007-07-11 16:53:40 +1000526};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700527
Dave Airliec60ce622007-07-11 15:27:12 +1000528typedef struct drm_map drm_local_map_t;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700529
530/**
531 * Context handle list
532 */
Dave Airlie55910512007-07-11 16:53:40 +1000533struct drm_ctx_list {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000534 struct list_head head; /**< list head */
535 drm_context_t handle; /**< context handle */
Dave Airlie84b1fd12007-07-11 15:53:27 +1000536 struct drm_file *tag; /**< associated fd private data */
Dave Airlie55910512007-07-11 16:53:40 +1000537};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700538
Dave Airlie55910512007-07-11 16:53:40 +1000539struct drm_vbl_sig {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000540 struct list_head head;
541 unsigned int sequence;
542 struct siginfo info;
543 struct task_struct *task;
Dave Airlie55910512007-07-11 16:53:40 +1000544};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700545
Dave Airlieea98a922005-09-11 20:28:11 +1000546/* location of GART table */
547#define DRM_ATI_GART_MAIN 1
548#define DRM_ATI_GART_FB 2
549
Dave Airlief2b04cd2007-05-08 15:19:23 +1000550#define DRM_ATI_GART_PCI 1
551#define DRM_ATI_GART_PCIE 2
552#define DRM_ATI_GART_IGP 3
553
Dave Airlie55910512007-07-11 16:53:40 +1000554struct drm_ati_pcigart_info {
Dave Airlieea98a922005-09-11 20:28:11 +1000555 int gart_table_location;
Dave Airlief2b04cd2007-05-08 15:19:23 +1000556 int gart_reg_if;
Dave Airlief26c4732006-01-02 17:18:39 +1100557 void *addr;
Dave Airlieea98a922005-09-11 20:28:11 +1000558 dma_addr_t bus_addr;
Dave Airlieb05c2382008-03-17 10:24:24 +1000559 dma_addr_t table_mask;
560 struct drm_dma_handle *table_handle;
Dave Airlief26c4732006-01-02 17:18:39 +1100561 drm_local_map_t mapping;
Dave Airlief2b04cd2007-05-08 15:19:23 +1000562 int table_size;
Dave Airlie55910512007-07-11 16:53:40 +1000563};
Dave Airlieea98a922005-09-11 20:28:11 +1000564
Linus Torvalds1da177e2005-04-16 15:20:36 -0700565/**
Eric Anholt673a3942008-07-30 12:06:12 -0700566 * This structure defines the drm_mm memory object, which will be used by the
567 * DRM for its buffer objects.
568 */
569struct drm_gem_object {
570 /** Reference count of this object */
571 struct kref refcount;
572
573 /** Handle count of this object. Each handle also holds a reference */
574 struct kref handlecount;
575
576 /** Related drm device */
577 struct drm_device *dev;
578
579 /** File representing the shmem storage */
580 struct file *filp;
581
582 /**
583 * Size of the object, in bytes. Immutable over the object's
584 * lifetime.
585 */
586 size_t size;
587
588 /**
589 * Global name for this object, starts at 1. 0 means unnamed.
590 * Access is covered by the object_name_lock in the related drm_device
591 */
592 int name;
593
594 /**
595 * Memory domains. These monitor which caches contain read/write data
596 * related to the object. When transitioning from one set of domains
597 * to another, the driver is called to ensure that caches are suitably
598 * flushed and invalidated
599 */
600 uint32_t read_domains;
601 uint32_t write_domain;
602
603 /**
604 * While validating an exec operation, the
605 * new read/write domain values are computed here.
606 * They will be transferred to the above values
607 * at the point that any cache flushing occurs
608 */
609 uint32_t pending_read_domains;
610 uint32_t pending_write_domain;
611
612 void *driver_private;
613};
614
615/**
Linus Torvalds1da177e2005-04-16 15:20:36 -0700616 * DRM driver structure. This structure represent the common code for
617 * a family of cards. There will one drm_device for each card present
618 * in this family
619 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700620struct drm_driver {
Dave Airlie22eae942005-11-10 22:16:34 +1100621 int (*load) (struct drm_device *, unsigned long flags);
622 int (*firstopen) (struct drm_device *);
Dave Airlie84b1fd12007-07-11 15:53:27 +1000623 int (*open) (struct drm_device *, struct drm_file *);
Eric Anholt6c340ea2007-08-25 20:23:09 +1000624 void (*preclose) (struct drm_device *, struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +1000625 void (*postclose) (struct drm_device *, struct drm_file *);
Dave Airlie22eae942005-11-10 22:16:34 +1100626 void (*lastclose) (struct drm_device *);
627 int (*unload) (struct drm_device *);
Dave Airlieb932ccb2008-02-20 10:02:20 +1000628 int (*suspend) (struct drm_device *, pm_message_t state);
Jesse Barnese8b962b2007-11-22 14:02:38 +1000629 int (*resume) (struct drm_device *);
Eric Anholtc153f452007-09-03 12:06:45 +1000630 int (*dma_ioctl) (struct drm_device *dev, void *data, struct drm_file *file_priv);
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000631 void (*dma_ready) (struct drm_device *);
632 int (*dma_quiescent) (struct drm_device *);
Dave Airlie84b1fd12007-07-11 15:53:27 +1000633 int (*context_ctor) (struct drm_device *dev, int context);
634 int (*context_dtor) (struct drm_device *dev, int context);
635 int (*kernel_context_switch) (struct drm_device *dev, int old,
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000636 int new);
Dave Airlieaf6061a2008-05-07 12:15:39 +1000637 void (*kernel_context_switch_unlock) (struct drm_device *dev);
Dave Airlieaf6061a2008-05-07 12:15:39 +1000638 int (*dri_library_name) (struct drm_device *dev, char *buf);
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000639
Dave Airliecda17382005-07-10 17:31:26 +1000640 /**
Jesse Barnes0a3e67a2008-09-30 12:14:26 -0700641 * get_vblank_counter - get raw hardware vblank counter
642 * @dev: DRM device
643 * @crtc: counter to fetch
644 *
645 * Driver callback for fetching a raw hardware vblank counter
646 * for @crtc. If a device doesn't have a hardware counter, the
647 * driver can simply return the value of drm_vblank_count and
648 * make the enable_vblank() and disable_vblank() hooks into no-ops,
649 * leaving interrupts enabled at all times.
650 *
651 * Wraparound handling and loss of events due to modesetting is dealt
652 * with in the DRM core code.
653 *
654 * RETURNS
655 * Raw vblank counter value.
656 */
657 u32 (*get_vblank_counter) (struct drm_device *dev, int crtc);
658
659 /**
660 * enable_vblank - enable vblank interrupt events
661 * @dev: DRM device
662 * @crtc: which irq to enable
663 *
664 * Enable vblank interrupts for @crtc. If the device doesn't have
665 * a hardware vblank counter, this routine should be a no-op, since
666 * interrupts will have to stay on to keep the count accurate.
667 *
668 * RETURNS
669 * Zero on success, appropriate errno if the given @crtc's vblank
670 * interrupt cannot be enabled.
671 */
672 int (*enable_vblank) (struct drm_device *dev, int crtc);
673
674 /**
675 * disable_vblank - disable vblank interrupt events
676 * @dev: DRM device
677 * @crtc: which irq to enable
678 *
679 * Disable vblank interrupts for @crtc. If the device doesn't have
680 * a hardware vblank counter, this routine should be a no-op, since
681 * interrupts will have to stay on to keep the count accurate.
682 */
683 void (*disable_vblank) (struct drm_device *dev, int crtc);
684
685 /**
Dave Airliecda17382005-07-10 17:31:26 +1000686 * Called by \c drm_device_is_agp. Typically used to determine if a
687 * card is really attached to AGP or not.
688 *
689 * \param dev DRM device handle
690 *
691 * \returns
692 * One of three values is returned depending on whether or not the
693 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
694 * (return of 1), or may or may not be AGP (return of 2).
695 */
Dave Airlie84b1fd12007-07-11 15:53:27 +1000696 int (*device_is_agp) (struct drm_device *dev);
Dave Airliecda17382005-07-10 17:31:26 +1000697
Linus Torvalds1da177e2005-04-16 15:20:36 -0700698 /* these have to be filled in */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000699
Dave Airlie22eae942005-11-10 22:16:34 +1100700 irqreturn_t(*irq_handler) (DRM_IRQ_ARGS);
Dave Airlie84b1fd12007-07-11 15:53:27 +1000701 void (*irq_preinstall) (struct drm_device *dev);
Jesse Barnes0a3e67a2008-09-30 12:14:26 -0700702 int (*irq_postinstall) (struct drm_device *dev);
Dave Airlie84b1fd12007-07-11 15:53:27 +1000703 void (*irq_uninstall) (struct drm_device *dev);
Eric Anholt6c340ea2007-08-25 20:23:09 +1000704 void (*reclaim_buffers) (struct drm_device *dev,
705 struct drm_file * file_priv);
Dave Airlied985c102006-01-02 21:32:48 +1100706 void (*reclaim_buffers_locked) (struct drm_device *dev,
Eric Anholt6c340ea2007-08-25 20:23:09 +1000707 struct drm_file *file_priv);
Thomas Hellstrom040ac322007-03-23 13:28:33 +1100708 void (*reclaim_buffers_idlelocked) (struct drm_device *dev,
Eric Anholt6c340ea2007-08-25 20:23:09 +1000709 struct drm_file *file_priv);
Dave Airliec60ce622007-07-11 15:27:12 +1000710 unsigned long (*get_map_ofs) (struct drm_map * map);
Dave Airlie84b1fd12007-07-11 15:53:27 +1000711 unsigned long (*get_reg_ofs) (struct drm_device *dev);
712 void (*set_version) (struct drm_device *dev,
Dave Airliec60ce622007-07-11 15:27:12 +1000713 struct drm_set_version *sv);
Dave Airlie22eae942005-11-10 22:16:34 +1100714
Eric Anholt673a3942008-07-30 12:06:12 -0700715 int (*proc_init)(struct drm_minor *minor);
716 void (*proc_cleanup)(struct drm_minor *minor);
717
718 /**
719 * Driver-specific constructor for drm_gem_objects, to set up
720 * obj->driver_private.
721 *
722 * Returns 0 on success.
723 */
724 int (*gem_init_object) (struct drm_gem_object *obj);
725 void (*gem_free_object) (struct drm_gem_object *obj);
726
Dave Airlie22eae942005-11-10 22:16:34 +1100727 int major;
728 int minor;
729 int patchlevel;
730 char *name;
731 char *desc;
732 char *date;
733
Linus Torvalds1da177e2005-04-16 15:20:36 -0700734 u32 driver_features;
735 int dev_priv_size;
Eric Anholtc153f452007-09-03 12:06:45 +1000736 struct drm_ioctl_desc *ioctls;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700737 int num_ioctls;
738 struct file_operations fops;
739 struct pci_driver pci_driver;
740};
741
Dave Airlie2c14f282008-04-21 16:47:32 +1000742#define DRM_MINOR_UNASSIGNED 0
743#define DRM_MINOR_LEGACY 1
744
Linus Torvalds1da177e2005-04-16 15:20:36 -0700745/**
Dave Airlie2c14f282008-04-21 16:47:32 +1000746 * DRM minor structure. This structure represents a drm minor number.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700747 */
Dave Airlie2c14f282008-04-21 16:47:32 +1000748struct drm_minor {
749 int index; /**< Minor device number */
750 int type; /**< Control or render */
751 dev_t device; /**< Device number for mknod */
752 struct device kdev; /**< Linux device */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700753 struct drm_device *dev;
754 struct proc_dir_entry *dev_root; /**< proc directory entry */
Dave Airlie84b1fd12007-07-11 15:53:27 +1000755};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700756
757/**
758 * DRM device structure. This structure represent a complete card that
759 * may contain multiple heads.
760 */
Dave Airlie84b1fd12007-07-11 15:53:27 +1000761struct drm_device {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000762 char *unique; /**< Unique identifier: e.g., busid */
763 int unique_len; /**< Length of unique field */
764 char *devname; /**< For /proc/interrupts */
765 int if_version; /**< Highest interface version set */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700766
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000767 int blocked; /**< Blocked due to VC switch? */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700768
769 /** \name Locks */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000770 /*@{ */
771 spinlock_t count_lock; /**< For inuse, drm_device::open_count, drm_device::buf_use */
Dave Airlie30e2fb12006-02-02 19:37:46 +1100772 struct mutex struct_mutex; /**< For others */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000773 /*@} */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700774
775 /** \name Usage Counters */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000776 /*@{ */
777 int open_count; /**< Outstanding files open */
778 atomic_t ioctl_count; /**< Outstanding IOCTLs pending */
779 atomic_t vma_count; /**< Outstanding vma areas open */
780 int buf_use; /**< Buffers in use -- cannot alloc */
781 atomic_t buf_alloc; /**< Buffer allocation in progress */
782 /*@} */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700783
784 /** \name Performance counters */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000785 /*@{ */
786 unsigned long counters;
Dave Airliec60ce622007-07-11 15:27:12 +1000787 enum drm_stat_type types[15];
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000788 atomic_t counts[15];
789 /*@} */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700790
791 /** \name Authentication */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000792 /*@{ */
Dave Airliebd1b3312007-05-26 05:01:51 +1000793 struct list_head filelist;
Dave Airliee0be4282007-07-12 10:26:44 +1000794 struct drm_open_hash magiclist; /**< magic hash table */
Thomas Hellstrom8669cbc2006-08-07 22:22:10 +1000795 struct list_head magicfree;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000796 /*@} */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700797
798 /** \name Memory management */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000799 /*@{ */
Dave Airliebd1b3312007-05-26 05:01:51 +1000800 struct list_head maplist; /**< Linked list of regions */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000801 int map_count; /**< Number of mappable regions */
Dave Airliee0be4282007-07-12 10:26:44 +1000802 struct drm_open_hash map_hash; /**< User token hash table for maps */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700803
804 /** \name Context handle management */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000805 /*@{ */
Dave Airliebd1b3312007-05-26 05:01:51 +1000806 struct list_head ctxlist; /**< Linked list of context handles */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000807 int ctx_count; /**< Number of context handles */
Dave Airlie30e2fb12006-02-02 19:37:46 +1100808 struct mutex ctxlist_mutex; /**< For ctxlist */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700809
Dave Airlie62968142007-07-17 10:46:52 +1000810 struct idr ctx_idr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700811
Dave Airliebd1b3312007-05-26 05:01:51 +1000812 struct list_head vmalist; /**< List of vmas (for debugging) */
Dave Airlie55910512007-07-11 16:53:40 +1000813 struct drm_lock_data lock; /**< Information on hardware lock */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000814 /*@} */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700815
816 /** \name DMA queues (contexts) */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000817 /*@{ */
818 int queue_count; /**< Number of active DMA queues */
819 int queue_reserved; /**< Number of reserved DMA queues */
820 int queue_slots; /**< Actual length of queuelist */
Dave Airliecdd55a22007-07-11 16:32:08 +1000821 struct drm_queue **queuelist; /**< Vector of pointers to DMA queues */
822 struct drm_device_dma *dma; /**< Optional pointer for DMA support */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000823 /*@} */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700824
825 /** \name Context support */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000826 /*@{ */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000827 int irq_enabled; /**< True if irq handler is enabled */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700828 __volatile__ long context_flag; /**< Context swapping flag */
829 __volatile__ long interrupt_flag; /**< Interruption handler flag */
830 __volatile__ long dma_flag; /**< DMA dispatch flag */
831 struct timer_list timer; /**< Timer for delaying ctx switch */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000832 wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */
833 int last_checked; /**< Last context checked for DMA */
834 int last_context; /**< Last current context */
835 unsigned long last_switch; /**< jiffies at last context switch */
836 /*@} */
837
838 struct work_struct work;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700839 /** \name VBLANK IRQ support */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000840 /*@{ */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700841
Jesse Barnes0a3e67a2008-09-30 12:14:26 -0700842 /*
843 * At load time, disabling the vblank interrupt won't be allowed since
844 * old clients may not call the modeset ioctl and therefore misbehave.
845 * Once the modeset ioctl *has* been called though, we can safely
846 * disable them when unused.
847 */
848 int vblank_disable_allowed;
849
850 wait_queue_head_t *vbl_queue; /**< VBLANK wait queue */
851 atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000852 spinlock_t vbl_lock;
Jesse Barnes0a3e67a2008-09-30 12:14:26 -0700853 struct list_head *vbl_sigs; /**< signal list to send on VBLANK */
854 atomic_t vbl_signal_pending; /* number of signals pending on all crtcs*/
855 atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */
856 u32 *last_vblank; /* protected by dev->vbl_lock, used */
857 /* for wraparound handling */
858 int *vblank_enabled; /* so we don't call enable more than
859 once per disable */
860 int *vblank_inmodeset; /* Display driver is setting mode */
861 struct timer_list vblank_disable_timer;
862
863 u32 max_vblank_count; /**< size of vblank counter register */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700864
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000865 /*@} */
866 cycles_t ctx_start;
867 cycles_t lck_start;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700868
Linus Torvalds1da177e2005-04-16 15:20:36 -0700869 struct fasync_struct *buf_async;/**< Processes waiting for SIGIO */
870 wait_queue_head_t buf_readers; /**< Processes waiting to read */
871 wait_queue_head_t buf_writers; /**< Processes waiting to ctx switch */
872
Dave Airlie55910512007-07-11 16:53:40 +1000873 struct drm_agp_head *agp; /**< AGP data */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700874
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000875 struct pci_dev *pdev; /**< PCI device structure */
Eric Anholt2f02cc32006-09-22 04:19:34 +1000876 int pci_vendor; /**< PCI vendor id */
877 int pci_device; /**< PCI device id */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700878#ifdef __alpha__
Linus Torvalds1da177e2005-04-16 15:20:36 -0700879 struct pci_controller *hose;
880#endif
Dave Airlie55910512007-07-11 16:53:40 +1000881 struct drm_sg_mem *sg; /**< Scatter gather memory */
Jesse Barnes0a3e67a2008-09-30 12:14:26 -0700882 int num_crtcs; /**< Number of CRTCs on this device */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000883 void *dev_private; /**< device private data */
Dave Airlie55910512007-07-11 16:53:40 +1000884 struct drm_sigdata sigdata; /**< For block_all_signals */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000885 sigset_t sigmask;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700886
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000887 struct drm_driver *driver;
888 drm_local_map_t *agp_buffer_map;
Dave Airlied1f2b552005-08-05 22:11:22 +1000889 unsigned int agp_buffer_token;
Dave Airlie2c14f282008-04-21 16:47:32 +1000890 struct drm_minor *primary; /**< render type primary screen head */
=?utf-8?q?Michel_D=C3=A4nzer?=bea56792006-10-24 23:04:19 +1000891
892 /** \name Drawable information */
893 /*@{ */
894 spinlock_t drw_lock;
Dave Airlied4e2cbe2007-07-17 10:55:47 +1000895 struct idr drw_idr;
=?utf-8?q?Michel_D=C3=A4nzer?=bea56792006-10-24 23:04:19 +1000896 /*@} */
Eric Anholt673a3942008-07-30 12:06:12 -0700897
898 /** \name GEM information */
899 /*@{ */
900 spinlock_t object_name_lock;
901 struct idr object_name_idr;
902 atomic_t object_count;
903 atomic_t object_memory;
904 atomic_t pin_count;
905 atomic_t pin_memory;
906 atomic_t gtt_count;
907 atomic_t gtt_memory;
908 uint32_t gtt_total;
909 uint32_t invalidate_domains; /* domains pending invalidation */
910 uint32_t flush_domains; /* domains pending flush */
911 /*@} */
912
Dave Airlie84b1fd12007-07-11 15:53:27 +1000913};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700914
Jesse Barnes9bfbd5c2008-09-15 15:00:33 -0700915static inline int drm_dev_to_irq(struct drm_device *dev)
916{
917 return dev->pdev->irq;
918}
919
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000920static __inline__ int drm_core_check_feature(struct drm_device *dev,
921 int feature)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700922{
923 return ((dev->driver->driver_features & feature) ? 1 : 0);
924}
925
Dave Airlie33229602006-08-07 20:23:42 +1000926#ifdef __alpha__
Jay Estabrook62442702007-03-11 11:46:27 +1100927#define drm_get_pci_domain(dev) dev->hose->index
Dave Airlie33229602006-08-07 20:23:42 +1000928#else
Dave Airlie9b1a51b2006-09-22 03:37:19 +1000929#define drm_get_pci_domain(dev) 0
Dave Airlie33229602006-08-07 20:23:42 +1000930#endif
931
Linus Torvalds1da177e2005-04-16 15:20:36 -0700932#if __OS_HAS_AGP
933static inline int drm_core_has_AGP(struct drm_device *dev)
934{
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000935 return drm_core_check_feature(dev, DRIVER_USE_AGP);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700936}
937#else
938#define drm_core_has_AGP(dev) (0)
939#endif
940
941#if __OS_HAS_MTRR
942static inline int drm_core_has_MTRR(struct drm_device *dev)
943{
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000944 return drm_core_check_feature(dev, DRIVER_USE_MTRR);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700945}
Dave Airlie269dc512006-01-02 16:23:01 +1100946
947#define DRM_MTRR_WC MTRR_TYPE_WRCOMB
948
949static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
950 unsigned int flags)
951{
952 return mtrr_add(offset, size, flags, 1);
953}
954
955static inline int drm_mtrr_del(int handle, unsigned long offset,
956 unsigned long size, unsigned int flags)
957{
958 return mtrr_del(handle, offset, size);
959}
960
Linus Torvalds1da177e2005-04-16 15:20:36 -0700961#else
962#define drm_core_has_MTRR(dev) (0)
Dave Airlie9c7d4622006-01-12 20:44:30 +1100963
964#define DRM_MTRR_WC 0
965
966static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
967 unsigned int flags)
968{
969 return 0;
970}
971
972static inline int drm_mtrr_del(int handle, unsigned long offset,
973 unsigned long size, unsigned int flags)
974{
975 return 0;
976}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700977#endif
978
979/******************************************************************/
980/** \name Internal function definitions */
981/*@{*/
982
Linus Torvalds1da177e2005-04-16 15:20:36 -0700983 /* Driver support (drm_drv.h) */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000984extern int drm_init(struct drm_driver *driver);
985extern void drm_exit(struct drm_driver *driver);
986extern int drm_ioctl(struct inode *inode, struct file *filp,
987 unsigned int cmd, unsigned long arg);
988extern long drm_compat_ioctl(struct file *filp,
989 unsigned int cmd, unsigned long arg);
Dave Airlie84b1fd12007-07-11 15:53:27 +1000990extern int drm_lastclose(struct drm_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700991
992 /* Device support (drm_fops.h) */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000993extern int drm_open(struct inode *inode, struct file *filp);
994extern int drm_stub_open(struct inode *inode, struct file *filp);
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000995extern int drm_fasync(int fd, struct file *filp, int on);
996extern int drm_release(struct inode *inode, struct file *filp);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700997
998 /* Mapping support (drm_vm.h) */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000999extern int drm_mmap(struct file *filp, struct vm_area_struct *vma);
Dave Airlieded23352007-11-05 13:07:28 +10001000extern unsigned long drm_core_get_map_ofs(struct drm_map * map);
1001extern unsigned long drm_core_get_reg_ofs(struct drm_device *dev);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001002extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001003
1004 /* Memory management support (drm_memory.h) */
1005#include "drm_memory.h"
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001006extern void drm_mem_init(void);
1007extern int drm_mem_info(char *buf, char **start, off_t offset,
1008 int request, int *eof, void *data);
1009extern void *drm_realloc(void *oldpt, size_t oldsize, size_t size, int area);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001010
Dave Airlie84b1fd12007-07-11 15:53:27 +10001011extern DRM_AGP_MEM *drm_alloc_agp(struct drm_device *dev, int pages, u32 type);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001012extern int drm_free_agp(DRM_AGP_MEM * handle, int pages);
1013extern int drm_bind_agp(DRM_AGP_MEM * handle, unsigned int start);
Eric Anholt673a3942008-07-30 12:06:12 -07001014extern DRM_AGP_MEM *drm_agp_bind_pages(struct drm_device *dev,
1015 struct page **pages,
1016 unsigned long num_pages,
Keith Packardba1eb1d2008-10-14 19:55:10 -07001017 uint32_t gtt_offset,
1018 uint32_t type);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001019extern int drm_unbind_agp(DRM_AGP_MEM * handle);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001020
1021 /* Misc. IOCTL support (drm_ioctl.h) */
Eric Anholtc153f452007-09-03 12:06:45 +10001022extern int drm_irq_by_busid(struct drm_device *dev, void *data,
1023 struct drm_file *file_priv);
1024extern int drm_getunique(struct drm_device *dev, void *data,
1025 struct drm_file *file_priv);
1026extern int drm_setunique(struct drm_device *dev, void *data,
1027 struct drm_file *file_priv);
1028extern int drm_getmap(struct drm_device *dev, void *data,
1029 struct drm_file *file_priv);
1030extern int drm_getclient(struct drm_device *dev, void *data,
1031 struct drm_file *file_priv);
1032extern int drm_getstats(struct drm_device *dev, void *data,
1033 struct drm_file *file_priv);
1034extern int drm_setversion(struct drm_device *dev, void *data,
1035 struct drm_file *file_priv);
1036extern int drm_noop(struct drm_device *dev, void *data,
1037 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001038
1039 /* Context IOCTL support (drm_context.h) */
Eric Anholtc153f452007-09-03 12:06:45 +10001040extern int drm_resctx(struct drm_device *dev, void *data,
1041 struct drm_file *file_priv);
1042extern int drm_addctx(struct drm_device *dev, void *data,
1043 struct drm_file *file_priv);
1044extern int drm_modctx(struct drm_device *dev, void *data,
1045 struct drm_file *file_priv);
1046extern int drm_getctx(struct drm_device *dev, void *data,
1047 struct drm_file *file_priv);
1048extern int drm_switchctx(struct drm_device *dev, void *data,
1049 struct drm_file *file_priv);
1050extern int drm_newctx(struct drm_device *dev, void *data,
1051 struct drm_file *file_priv);
1052extern int drm_rmctx(struct drm_device *dev, void *data,
1053 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001054
Dave Airlie84b1fd12007-07-11 15:53:27 +10001055extern int drm_ctxbitmap_init(struct drm_device *dev);
1056extern void drm_ctxbitmap_cleanup(struct drm_device *dev);
1057extern void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001058
Eric Anholtc153f452007-09-03 12:06:45 +10001059extern int drm_setsareactx(struct drm_device *dev, void *data,
1060 struct drm_file *file_priv);
1061extern int drm_getsareactx(struct drm_device *dev, void *data,
1062 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001063
1064 /* Drawable IOCTL support (drm_drawable.h) */
Eric Anholtc153f452007-09-03 12:06:45 +10001065extern int drm_adddraw(struct drm_device *dev, void *data,
1066 struct drm_file *file_priv);
1067extern int drm_rmdraw(struct drm_device *dev, void *data,
1068 struct drm_file *file_priv);
1069extern int drm_update_drawable_info(struct drm_device *dev, void *data,
1070 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001071extern struct drm_drawable_info *drm_get_drawable_info(struct drm_device *dev,
=?utf-8?q?Michel_D=C3=A4nzer?=bea56792006-10-24 23:04:19 +10001072 drm_drawable_t id);
Dave Airlied4e2cbe2007-07-17 10:55:47 +10001073extern void drm_drawable_free_all(struct drm_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001074
1075 /* Authentication IOCTL support (drm_auth.h) */
Eric Anholtc153f452007-09-03 12:06:45 +10001076extern int drm_getmagic(struct drm_device *dev, void *data,
1077 struct drm_file *file_priv);
1078extern int drm_authmagic(struct drm_device *dev, void *data,
1079 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001080
Eric Anholt673a3942008-07-30 12:06:12 -07001081/* Cache management (drm_cache.c) */
1082void drm_clflush_pages(struct page *pages[], unsigned long num_pages);
1083
Linus Torvalds1da177e2005-04-16 15:20:36 -07001084 /* Locking IOCTL support (drm_lock.h) */
Eric Anholtc153f452007-09-03 12:06:45 +10001085extern int drm_lock(struct drm_device *dev, void *data,
1086 struct drm_file *file_priv);
1087extern int drm_unlock(struct drm_device *dev, void *data,
1088 struct drm_file *file_priv);
Dave Airlie55910512007-07-11 16:53:40 +10001089extern int drm_lock_take(struct drm_lock_data *lock_data, unsigned int context);
1090extern int drm_lock_free(struct drm_lock_data *lock_data, unsigned int context);
1091extern void drm_idlelock_take(struct drm_lock_data *lock_data);
1092extern void drm_idlelock_release(struct drm_lock_data *lock_data);
Thomas Hellstrom040ac322007-03-23 13:28:33 +11001093
1094/*
1095 * These are exported to drivers so that they can implement fencing using
1096 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
1097 */
1098
Eric Anholtc153f452007-09-03 12:06:45 +10001099extern int drm_i_have_hw_lock(struct drm_device *dev, struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001100
1101 /* Buffer management support (drm_bufs.h) */
Dave Airlie84b1fd12007-07-11 15:53:27 +10001102extern int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc * request);
1103extern int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc * request);
1104extern int drm_addmap(struct drm_device *dev, unsigned int offset,
Dave Airliec60ce622007-07-11 15:27:12 +10001105 unsigned int size, enum drm_map_type type,
1106 enum drm_map_flags flags, drm_local_map_t ** map_ptr);
Eric Anholtc153f452007-09-03 12:06:45 +10001107extern int drm_addmap_ioctl(struct drm_device *dev, void *data,
1108 struct drm_file *file_priv);
1109extern int drm_rmmap(struct drm_device *dev, drm_local_map_t *map);
1110extern int drm_rmmap_locked(struct drm_device *dev, drm_local_map_t *map);
1111extern int drm_rmmap_ioctl(struct drm_device *dev, void *data,
1112 struct drm_file *file_priv);
1113extern int drm_addbufs(struct drm_device *dev, void *data,
1114 struct drm_file *file_priv);
1115extern int drm_infobufs(struct drm_device *dev, void *data,
1116 struct drm_file *file_priv);
1117extern int drm_markbufs(struct drm_device *dev, void *data,
1118 struct drm_file *file_priv);
1119extern int drm_freebufs(struct drm_device *dev, void *data,
1120 struct drm_file *file_priv);
1121extern int drm_mapbufs(struct drm_device *dev, void *data,
1122 struct drm_file *file_priv);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001123extern int drm_order(unsigned long size);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001124extern unsigned long drm_get_resource_start(struct drm_device *dev,
Dave Airlie836cf042005-07-10 19:27:04 +10001125 unsigned int resource);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001126extern unsigned long drm_get_resource_len(struct drm_device *dev,
Dave Airlie836cf042005-07-10 19:27:04 +10001127 unsigned int resource);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001128
1129 /* DMA support (drm_dma.h) */
Dave Airlie84b1fd12007-07-11 15:53:27 +10001130extern int drm_dma_setup(struct drm_device *dev);
1131extern void drm_dma_takedown(struct drm_device *dev);
Dave Airlie056219e2007-07-11 16:17:42 +10001132extern void drm_free_buffer(struct drm_device *dev, struct drm_buf * buf);
Eric Anholt6c340ea2007-08-25 20:23:09 +10001133extern void drm_core_reclaim_buffers(struct drm_device *dev,
1134 struct drm_file *filp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001135
1136 /* IRQ support (drm_irq.h) */
Eric Anholtc153f452007-09-03 12:06:45 +10001137extern int drm_control(struct drm_device *dev, void *data,
1138 struct drm_file *file_priv);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001139extern irqreturn_t drm_irq_handler(DRM_IRQ_ARGS);
Kristian Høgsbergdbb19d32008-08-20 11:04:27 -04001140extern int drm_irq_install(struct drm_device *dev);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001141extern int drm_irq_uninstall(struct drm_device *dev);
1142extern void drm_driver_irq_preinstall(struct drm_device *dev);
1143extern void drm_driver_irq_postinstall(struct drm_device *dev);
1144extern void drm_driver_irq_uninstall(struct drm_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001145
Jesse Barnes0a3e67a2008-09-30 12:14:26 -07001146extern int drm_vblank_init(struct drm_device *dev, int num_crtcs);
Dave Airlieaf6061a2008-05-07 12:15:39 +10001147extern int drm_wait_vblank(struct drm_device *dev, void *data,
Jesse Barnes0a3e67a2008-09-30 12:14:26 -07001148 struct drm_file *filp);
Dave Airlieaf6061a2008-05-07 12:15:39 +10001149extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq);
Jesse Barnes0a3e67a2008-09-30 12:14:26 -07001150extern u32 drm_vblank_count(struct drm_device *dev, int crtc);
1151extern void drm_handle_vblank(struct drm_device *dev, int crtc);
1152extern int drm_vblank_get(struct drm_device *dev, int crtc);
1153extern void drm_vblank_put(struct drm_device *dev, int crtc);
Keith Packard52440212008-11-18 09:30:25 -08001154extern void drm_vblank_cleanup(struct drm_device *dev);
Jesse Barnes0a3e67a2008-09-30 12:14:26 -07001155/* Modesetting support */
1156extern int drm_modeset_ctl(struct drm_device *dev, void *data,
1157 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001158
1159 /* AGP/GART support (drm_agpsupport.h) */
Dave Airlie55910512007-07-11 16:53:40 +10001160extern struct drm_agp_head *drm_agp_init(struct drm_device *dev);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001161extern int drm_agp_acquire(struct drm_device *dev);
Eric Anholtc153f452007-09-03 12:06:45 +10001162extern int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
1163 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001164extern int drm_agp_release(struct drm_device *dev);
Eric Anholtc153f452007-09-03 12:06:45 +10001165extern int drm_agp_release_ioctl(struct drm_device *dev, void *data,
1166 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001167extern int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode);
Eric Anholtc153f452007-09-03 12:06:45 +10001168extern int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
1169 struct drm_file *file_priv);
1170extern int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info);
1171extern int drm_agp_info_ioctl(struct drm_device *dev, void *data,
1172 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001173extern int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request);
Eric Anholtc153f452007-09-03 12:06:45 +10001174extern int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
1175 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001176extern int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request);
Eric Anholtc153f452007-09-03 12:06:45 +10001177extern int drm_agp_free_ioctl(struct drm_device *dev, void *data,
1178 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001179extern int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request);
Eric Anholtc153f452007-09-03 12:06:45 +10001180extern int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
1181 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001182extern int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
Eric Anholtc153f452007-09-03 12:06:45 +10001183extern int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
1184 struct drm_file *file_priv);
1185extern DRM_AGP_MEM *drm_agp_allocate_memory(struct agp_bridge_data *bridge, size_t pages, u32 type);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001186extern int drm_agp_free_memory(DRM_AGP_MEM * handle);
1187extern int drm_agp_bind_memory(DRM_AGP_MEM * handle, off_t start);
1188extern int drm_agp_unbind_memory(DRM_AGP_MEM * handle);
Eric Anholt673a3942008-07-30 12:06:12 -07001189extern void drm_agp_chipset_flush(struct drm_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001190
1191 /* Stub support (drm_stub.h) */
1192extern int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001193 struct drm_driver *driver);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001194extern int drm_put_dev(struct drm_device *dev);
Dave Airlie2c14f282008-04-21 16:47:32 +10001195extern int drm_put_minor(struct drm_minor **minor);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001196extern unsigned int drm_debug;
Dave Airlie2c14f282008-04-21 16:47:32 +10001197
Greg Kroah-Hartman0650fd52006-01-20 14:08:59 -08001198extern struct class *drm_class;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001199extern struct proc_dir_entry *drm_proc_root;
1200
Dave Airlie2c14f282008-04-21 16:47:32 +10001201extern struct idr drm_minors_idr;
1202
Dave Airlieda509d72007-05-26 05:04:51 +10001203extern drm_local_map_t *drm_getsarea(struct drm_device *dev);
1204
Linus Torvalds1da177e2005-04-16 15:20:36 -07001205 /* Proc support (drm_proc.h) */
Dave Airlie2c14f282008-04-21 16:47:32 +10001206extern int drm_proc_init(struct drm_minor *minor, int minor_id,
1207 struct proc_dir_entry *root);
1208extern int drm_proc_cleanup(struct drm_minor *minor, struct proc_dir_entry *root);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001209
1210 /* Scatter Gather Support (drm_scatter.h) */
Dave Airlie55910512007-07-11 16:53:40 +10001211extern void drm_sg_cleanup(struct drm_sg_mem * entry);
Eric Anholtc153f452007-09-03 12:06:45 +10001212extern int drm_sg_alloc_ioctl(struct drm_device *dev, void *data,
1213 struct drm_file *file_priv);
1214extern int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request);
1215extern int drm_sg_free(struct drm_device *dev, void *data,
1216 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001217
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001218 /* ATI PCIGART support (ati_pcigart.h) */
Dave Airlie84b1fd12007-07-11 15:53:27 +10001219extern int drm_ati_pcigart_init(struct drm_device *dev,
Dave Airlie55910512007-07-11 16:53:40 +10001220 struct drm_ati_pcigart_info * gart_info);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001221extern int drm_ati_pcigart_cleanup(struct drm_device *dev,
Dave Airlie55910512007-07-11 16:53:40 +10001222 struct drm_ati_pcigart_info * gart_info);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001223
Dave Airlie84b1fd12007-07-11 15:53:27 +10001224extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
Dave Airlie9c8da5e2005-07-10 15:38:56 +10001225 size_t align, dma_addr_t maxaddr);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001226extern void __drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
1227extern void drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001228
1229 /* sysfs support (drm_sysfs.c) */
Jesse Barnese8b962b2007-11-22 14:02:38 +10001230struct drm_sysfs_class;
Greg Kroah-Hartman0650fd52006-01-20 14:08:59 -08001231extern struct class *drm_sysfs_create(struct module *owner, char *name);
Jesse Barnese8b962b2007-11-22 14:02:38 +10001232extern void drm_sysfs_destroy(void);
Dave Airlie2c14f282008-04-21 16:47:32 +10001233extern int drm_sysfs_device_add(struct drm_minor *minor);
1234extern void drm_sysfs_device_remove(struct drm_minor *minor);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001235
Thomas Hellstrom3a1bd922006-08-07 21:30:28 +10001236/*
1237 * Basic memory manager support (drm_mm.c)
1238 */
Dave Airlie55910512007-07-11 16:53:40 +10001239extern struct drm_mm_node *drm_mm_get_block(struct drm_mm_node * parent,
Thomas Hellstrom3a1bd922006-08-07 21:30:28 +10001240 unsigned long size,
1241 unsigned alignment);
Dave Airlie8562b3f2007-11-05 12:37:41 +10001242extern void drm_mm_put_block(struct drm_mm_node * cur);
Dave Airlie55910512007-07-11 16:53:40 +10001243extern struct drm_mm_node *drm_mm_search_free(const struct drm_mm *mm, unsigned long size,
Thomas Hellstrom3a1bd922006-08-07 21:30:28 +10001244 unsigned alignment, int best_match);
Dave Airlie55910512007-07-11 16:53:40 +10001245extern int drm_mm_init(struct drm_mm *mm, unsigned long start, unsigned long size);
1246extern void drm_mm_takedown(struct drm_mm *mm);
1247extern int drm_mm_clean(struct drm_mm *mm);
1248extern unsigned long drm_mm_tail_space(struct drm_mm *mm);
1249extern int drm_mm_remove_space_from_tail(struct drm_mm *mm, unsigned long size);
1250extern int drm_mm_add_space_to_tail(struct drm_mm *mm, unsigned long size);
Thomas Hellstrom3a1bd922006-08-07 21:30:28 +10001251
Eric Anholt673a3942008-07-30 12:06:12 -07001252/* Graphics Execution Manager library functions (drm_gem.c) */
1253int drm_gem_init(struct drm_device *dev);
1254void drm_gem_object_free(struct kref *kref);
1255struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev,
1256 size_t size);
1257void drm_gem_object_handle_free(struct kref *kref);
1258
1259static inline void
1260drm_gem_object_reference(struct drm_gem_object *obj)
1261{
1262 kref_get(&obj->refcount);
1263}
1264
1265static inline void
1266drm_gem_object_unreference(struct drm_gem_object *obj)
1267{
1268 if (obj == NULL)
1269 return;
1270
1271 kref_put(&obj->refcount, drm_gem_object_free);
1272}
1273
1274int drm_gem_handle_create(struct drm_file *file_priv,
1275 struct drm_gem_object *obj,
1276 int *handlep);
1277
1278static inline void
1279drm_gem_object_handle_reference(struct drm_gem_object *obj)
1280{
1281 drm_gem_object_reference(obj);
1282 kref_get(&obj->handlecount);
1283}
1284
1285static inline void
1286drm_gem_object_handle_unreference(struct drm_gem_object *obj)
1287{
1288 if (obj == NULL)
1289 return;
1290
1291 /*
1292 * Must bump handle count first as this may be the last
1293 * ref, in which case the object would disappear before we
1294 * checked for a name
1295 */
1296 kref_put(&obj->handlecount, drm_gem_object_handle_free);
1297 drm_gem_object_unreference(obj);
1298}
1299
1300struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev,
1301 struct drm_file *filp,
1302 int handle);
1303int drm_gem_close_ioctl(struct drm_device *dev, void *data,
1304 struct drm_file *file_priv);
1305int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
1306 struct drm_file *file_priv);
1307int drm_gem_open_ioctl(struct drm_device *dev, void *data,
1308 struct drm_file *file_priv);
1309void drm_gem_open(struct drm_device *dev, struct drm_file *file_private);
1310void drm_gem_release(struct drm_device *dev, struct drm_file *file_private);
1311
Christoph Hellwig004a7722007-01-08 21:56:59 +11001312extern void drm_core_ioremap(struct drm_map *map, struct drm_device *dev);
Dave Airlie242e3df2008-07-15 15:48:05 +10001313extern void drm_core_ioremap_wc(struct drm_map *map, struct drm_device *dev);
Christoph Hellwig004a7722007-01-08 21:56:59 +11001314extern void drm_core_ioremapfree(struct drm_map *map, struct drm_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001315
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001316static __inline__ struct drm_map *drm_core_findmap(struct drm_device *dev,
1317 unsigned int token)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001318{
Dave Airlie55910512007-07-11 16:53:40 +10001319 struct drm_map_list *_entry;
Dave Airliebd1b3312007-05-26 05:01:51 +10001320 list_for_each_entry(_entry, &dev->maplist, head)
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001321 if (_entry->user_token == token)
1322 return _entry->map;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001323 return NULL;
1324}
1325
Dave Airlie84b1fd12007-07-11 15:53:27 +10001326static __inline__ int drm_device_is_agp(struct drm_device *dev)
Dave Airliecda17382005-07-10 17:31:26 +10001327{
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001328 if (dev->driver->device_is_agp != NULL) {
1329 int err = (*dev->driver->device_is_agp) (dev);
1330
Dave Airliecda17382005-07-10 17:31:26 +10001331 if (err != 2) {
1332 return err;
1333 }
1334 }
1335
1336 return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP);
1337}
1338
Dave Airlie84b1fd12007-07-11 15:53:27 +10001339static __inline__ int drm_device_is_pcie(struct drm_device *dev)
Dave Airlieea98a922005-09-11 20:28:11 +10001340{
1341 return pci_find_capability(dev->pdev, PCI_CAP_ID_EXP);
1342}
1343
Linus Torvalds1da177e2005-04-16 15:20:36 -07001344static __inline__ void drm_core_dropmap(struct drm_map *map)
1345{
1346}
1347
1348#ifndef DEBUG_MEMORY
1349/** Wrapper around kmalloc() */
1350static __inline__ void *drm_alloc(size_t size, int area)
1351{
1352 return kmalloc(size, GFP_KERNEL);
1353}
1354
1355/** Wrapper around kfree() */
1356static __inline__ void drm_free(void *pt, size_t size, int area)
1357{
1358 kfree(pt);
1359}
Dave Airlieb9523242005-07-07 20:33:26 +10001360
1361/** Wrapper around kcalloc() */
1362static __inline__ void *drm_calloc(size_t nmemb, size_t size, int area)
1363{
1364 return kcalloc(nmemb, size, GFP_KERNEL);
1365}
Linus Torvalds1da177e2005-04-16 15:20:36 -07001366#else
1367extern void *drm_alloc(size_t size, int area);
1368extern void drm_free(void *pt, size_t size, int area);
Dave Airlieb9523242005-07-07 20:33:26 +10001369extern void *drm_calloc(size_t nmemb, size_t size, int area);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001370#endif
1371
1372/*@}*/
1373
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001374#endif /* __KERNEL__ */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001375#endif