blob: c1b987158dfa20c19285e59533c40b2aa5ebb0b2 [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
Linus Torvalds1da177e2005-04-16 15:20:36 -070037#ifdef __KERNEL__
38#ifdef __alpha__
39/* add include of current.h so that "current" is defined
40 * before static inline funcs in wait.h. Doing this so we
41 * can build the DRM (part of PI DRI). 4/21/2000 S + B */
42#include <asm/current.h>
Dave Airlieb5e89ed2005-09-25 14:28:13 +100043#endif /* __alpha__ */
Linus Torvalds1da177e2005-04-16 15:20:36 -070044#include <linux/module.h>
45#include <linux/kernel.h>
46#include <linux/miscdevice.h>
47#include <linux/fs.h>
48#include <linux/proc_fs.h>
49#include <linux/init.h>
50#include <linux/file.h>
51#include <linux/pci.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070052#include <linux/jiffies.h>
53#include <linux/smp_lock.h> /* For (un)lock_kernel */
Dave Airlieb05c2382008-03-17 10:24:24 +100054#include <linux/dma-mapping.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070055#include <linux/mm.h>
56#include <linux/cdev.h>
Dave Airlie30e2fb12006-02-02 19:37:46 +110057#include <linux/mutex.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090058#include <linux/slab.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070059#if defined(__alpha__) || defined(__powerpc__)
Dave Airlieb5e89ed2005-09-25 14:28:13 +100060#include <asm/pgtable.h> /* For pte_wrprotect */
Linus Torvalds1da177e2005-04-16 15:20:36 -070061#endif
62#include <asm/io.h>
63#include <asm/mman.h>
64#include <asm/uaccess.h>
65#ifdef CONFIG_MTRR
66#include <asm/mtrr.h>
67#endif
68#if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
69#include <linux/types.h>
70#include <linux/agp_backend.h>
71#endif
72#include <linux/workqueue.h>
73#include <linux/poll.h>
74#include <asm/pgalloc.h>
75#include "drm.h"
76
Dave Airlie62968142007-07-17 10:46:52 +100077#include <linux/idr.h>
78
Linus Torvalds1da177e2005-04-16 15:20:36 -070079#define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE)))
80#define __OS_HAS_MTRR (defined(CONFIG_MTRR))
81
Eric Anholtc153f452007-09-03 12:06:45 +100082struct drm_file;
83struct drm_device;
84
Linus Torvalds1da177e2005-04-16 15:20:36 -070085#include "drm_os_linux.h"
Thomas Hellstrom3a1bd922006-08-07 21:30:28 +100086#include "drm_hashtab.h"
Jerome Glisse249d6042009-04-08 17:11:16 +020087#include "drm_mm.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070088
yakui_zhao4fefcb22009-06-02 14:09:47 +080089#define DRM_UT_CORE 0x01
90#define DRM_UT_DRIVER 0x02
91#define DRM_UT_KMS 0x04
Zhao Yakui87fdff82009-07-20 13:48:06 +080092/*
93 * Three debug levels are defined.
94 * drm_core, drm_driver, drm_kms
95 * drm_core level can be used in the generic drm code. For example:
96 * drm_ioctl, drm_mm, drm_memory
97 * The macro definiton of DRM_DEBUG is used.
98 * DRM_DEBUG(fmt, args...)
99 * The debug info by using the DRM_DEBUG can be obtained by adding
100 * the boot option of "drm.debug=1".
101 *
102 * drm_driver level can be used in the specific drm driver. It is used
103 * to add the debug info related with the drm driver. For example:
104 * i915_drv, i915_dma, i915_gem, radeon_drv,
105 * The macro definition of DRM_DEBUG_DRIVER can be used.
106 * DRM_DEBUG_DRIVER(fmt, args...)
107 * The debug info by using the DRM_DEBUG_DRIVER can be obtained by
108 * adding the boot option of "drm.debug=0x02"
109 *
110 * drm_kms level can be used in the KMS code related with specific drm driver.
111 * It is used to add the debug info related with KMS mode. For example:
112 * the connector/crtc ,
113 * The macro definition of DRM_DEBUG_KMS can be used.
114 * DRM_DEBUG_KMS(fmt, args...)
115 * The debug info by using the DRM_DEBUG_KMS can be obtained by
116 * adding the boot option of "drm.debug=0x04"
117 *
118 * If we add the boot option of "drm.debug=0x06", we can get the debug info by
119 * using the DRM_DEBUG_KMS and DRM_DEBUG_DRIVER.
120 * If we add the boot option of "drm.debug=0x05", we can get the debug info by
121 * using the DRM_DEBUG_KMS and DRM_DEBUG.
122 */
yakui_zhao4fefcb22009-06-02 14:09:47 +0800123
124extern void drm_ut_debug_printk(unsigned int request_level,
125 const char *prefix,
126 const char *function_name,
127 const char *format, ...);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700128/***********************************************************************/
129/** \name DRM template customization defaults */
130/*@{*/
131
132/* driver capabilities and requirements mask */
133#define DRIVER_USE_AGP 0x1
134#define DRIVER_REQUIRE_AGP 0x2
135#define DRIVER_USE_MTRR 0x4
136#define DRIVER_PCI_DMA 0x8
137#define DRIVER_SG 0x10
138#define DRIVER_HAVE_DMA 0x20
139#define DRIVER_HAVE_IRQ 0x40
140#define DRIVER_IRQ_SHARED 0x80
Dave Airlieaf6061a2008-05-07 12:15:39 +1000141#define DRIVER_IRQ_VBL 0x100
Linus Torvalds1da177e2005-04-16 15:20:36 -0700142#define DRIVER_DMA_QUEUE 0x200
Dave Airlieb84397d62005-07-10 14:46:12 +1000143#define DRIVER_FB_DMA 0x400
Dave Airlieaf6061a2008-05-07 12:15:39 +1000144#define DRIVER_IRQ_VBL2 0x800
Eric Anholt673a3942008-07-30 12:06:12 -0700145#define DRIVER_GEM 0x1000
Dave Airlief453ba02008-11-07 14:05:41 -0800146#define DRIVER_MODESET 0x2000
Linus Torvalds1da177e2005-04-16 15:20:36 -0700147
148/***********************************************************************/
149/** \name Begin the DRM... */
150/*@{*/
151
152#define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then
153 also include looping detection. */
154
Thomas Hellstrom8669cbc2006-08-07 22:22:10 +1000155#define DRM_MAGIC_HASH_ORDER 4 /**< Size of key hash table. Must be power of 2. */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700156#define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */
157#define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */
158#define DRM_LOOPING_LIMIT 5000000
Linus Torvalds1da177e2005-04-16 15:20:36 -0700159#define DRM_TIME_SLICE (HZ/20) /**< Time slice for GLXContexts */
160#define DRM_LOCK_SLICE 1 /**< Time slice for lock, in jiffies */
161
162#define DRM_FLAG_DEBUG 0x01
163
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164#define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
Thomas Hellstrom8d153f72006-08-07 22:36:47 +1000165#define DRM_MAP_HASH_OFFSET 0x10000000
Linus Torvalds1da177e2005-04-16 15:20:36 -0700166
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000167/*@}*/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168
169/***********************************************************************/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700170/** \name Macros to make printk easier */
171/*@{*/
172
173/**
174 * Error output.
175 *
176 * \param fmt printf() like format string.
177 * \param arg arguments
178 */
179#define DRM_ERROR(fmt, arg...) \
Harvey Harrisonbf9d8922008-04-30 00:55:10 -0700180 printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* " fmt , __func__ , ##arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700181
182/**
183 * Memory error output.
184 *
185 * \param area memory area where the error occurred.
186 * \param fmt printf() like format string.
187 * \param arg arguments
188 */
189#define DRM_MEM_ERROR(area, fmt, arg...) \
Harvey Harrisonbf9d8922008-04-30 00:55:10 -0700190 printk(KERN_ERR "[" DRM_NAME ":%s:%s] *ERROR* " fmt , __func__, \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700191 drm_mem_stats[area].name , ##arg)
192
193#define DRM_INFO(fmt, arg...) printk(KERN_INFO "[" DRM_NAME "] " fmt , ##arg)
194
195/**
196 * Debug output.
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000197 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700198 * \param fmt printf() like format string.
199 * \param arg arguments
200 */
201#if DRM_DEBUG_CODE
yakui_zhao4fefcb22009-06-02 14:09:47 +0800202#define DRM_DEBUG(fmt, args...) \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700203 do { \
yakui_zhao4fefcb22009-06-02 14:09:47 +0800204 drm_ut_debug_printk(DRM_UT_CORE, DRM_NAME, \
205 __func__, fmt, ##args); \
206 } while (0)
207
Zhao Yakui8a4c47f2009-07-20 13:48:04 +0800208#define DRM_DEBUG_DRIVER(fmt, args...) \
yakui_zhao4fefcb22009-06-02 14:09:47 +0800209 do { \
Zhao Yakui8a4c47f2009-07-20 13:48:04 +0800210 drm_ut_debug_printk(DRM_UT_DRIVER, DRM_NAME, \
yakui_zhao4fefcb22009-06-02 14:09:47 +0800211 __func__, fmt, ##args); \
212 } while (0)
Zhao Yakui8a4c47f2009-07-20 13:48:04 +0800213#define DRM_DEBUG_KMS(fmt, args...) \
yakui_zhao4fefcb22009-06-02 14:09:47 +0800214 do { \
Zhao Yakui8a4c47f2009-07-20 13:48:04 +0800215 drm_ut_debug_printk(DRM_UT_KMS, DRM_NAME, \
yakui_zhao4fefcb22009-06-02 14:09:47 +0800216 __func__, fmt, ##args); \
217 } while (0)
yakui_zhao4fefcb22009-06-02 14:09:47 +0800218#define DRM_LOG(fmt, args...) \
219 do { \
220 drm_ut_debug_printk(DRM_UT_CORE, NULL, \
221 NULL, fmt, ##args); \
222 } while (0)
223#define DRM_LOG_KMS(fmt, args...) \
224 do { \
225 drm_ut_debug_printk(DRM_UT_KMS, NULL, \
226 NULL, fmt, ##args); \
227 } while (0)
228#define DRM_LOG_MODE(fmt, args...) \
229 do { \
230 drm_ut_debug_printk(DRM_UT_MODE, NULL, \
231 NULL, fmt, ##args); \
232 } while (0)
233#define DRM_LOG_DRIVER(fmt, args...) \
234 do { \
235 drm_ut_debug_printk(DRM_UT_DRIVER, NULL, \
236 NULL, fmt, ##args); \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700237 } while (0)
238#else
Zhao Yakui8a4c47f2009-07-20 13:48:04 +0800239#define DRM_DEBUG_DRIVER(fmt, args...) do { } while (0)
240#define DRM_DEBUG_KMS(fmt, args...) do { } while (0)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700241#define DRM_DEBUG(fmt, arg...) do { } while (0)
yakui_zhao4fefcb22009-06-02 14:09:47 +0800242#define DRM_LOG(fmt, arg...) do { } while (0)
243#define DRM_LOG_KMS(fmt, args...) do { } while (0)
244#define DRM_LOG_MODE(fmt, arg...) do { } while (0)
245#define DRM_LOG_DRIVER(fmt, arg...) do { } while (0)
246
Linus Torvalds1da177e2005-04-16 15:20:36 -0700247#endif
248
Linus Torvalds1da177e2005-04-16 15:20:36 -0700249/*@}*/
250
Linus Torvalds1da177e2005-04-16 15:20:36 -0700251/***********************************************************************/
252/** \name Internal types and structures */
253/*@{*/
254
Dave Airlie99a26572005-09-25 13:25:41 +1000255#define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700256
257#define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
258#define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700259
260#define DRM_IF_VERSION(maj, min) (maj << 16 | min)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700261
262/**
263 * Test that the hardware lock is held by the caller, returning otherwise.
264 *
265 * \param dev DRM device.
266 * \param filp file pointer of the caller.
267 */
Roel Kluindcae3622009-06-10 12:43:48 -0700268#define LOCK_TEST_WITH_RETURN( dev, _file_priv ) \
269do { \
270 if (!_DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock) || \
271 _file_priv->master->lock.file_priv != _file_priv) { \
Eric Anholtc153f452007-09-03 12:06:45 +1000272 DRM_ERROR( "%s called without lock held, held %d owner %p %p\n",\
Roel Kluindcae3622009-06-10 12:43:48 -0700273 __func__, _DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock),\
274 _file_priv->master->lock.file_priv, _file_priv); \
275 return -EINVAL; \
276 } \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700277} while (0)
278
279/**
Linus Torvalds1da177e2005-04-16 15:20:36 -0700280 * Ioctl function type.
281 *
282 * \param inode device inode.
Eric Anholt6c340ea2007-08-25 20:23:09 +1000283 * \param file_priv DRM file private pointer.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700284 * \param cmd command.
285 * \param arg argument.
286 */
Eric Anholtc153f452007-09-03 12:06:45 +1000287typedef int drm_ioctl_t(struct drm_device *dev, void *data,
288 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700289
Dave Airlie9a186642005-06-23 21:29:18 +1000290typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
291 unsigned long arg);
292
Kristian Høgsberg1a959162009-12-02 12:13:48 -0500293#define DRM_IOCTL_NR(n) _IOC_NR(n)
294#define DRM_MAJOR 226
295
Dave Airliea7a2cc32006-01-02 13:54:04 +1100296#define DRM_AUTH 0x1
297#define DRM_MASTER 0x2
298#define DRM_ROOT_ONLY 0x4
Dave Airlief453ba02008-11-07 14:05:41 -0800299#define DRM_CONTROL_ALLOW 0x8
Arnd Bergmanned8b6702009-12-16 22:17:09 +0000300#define DRM_UNLOCKED 0x10
Dave Airliea7a2cc32006-01-02 13:54:04 +1100301
Eric Anholtc153f452007-09-03 12:06:45 +1000302struct drm_ioctl_desc {
303 unsigned int cmd;
Dave Airliea7a2cc32006-01-02 13:54:04 +1100304 int flags;
Richard Kennedyc972d752009-03-18 17:26:44 +0000305 drm_ioctl_t *func;
Eric Anholtc153f452007-09-03 12:06:45 +1000306};
307
308/**
309 * Creates a driver or general drm_ioctl_desc array entry for the given
310 * ioctl, for use by drm_ioctl().
311 */
Richard Kennedyc972d752009-03-18 17:26:44 +0000312#define DRM_IOCTL_DEF(ioctl, _func, _flags) \
313 [DRM_IOCTL_NR(ioctl)] = {.cmd = ioctl, .func = _func, .flags = _flags}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700314
Dave Airlie8fc2fdf2007-07-11 16:21:47 +1000315struct drm_magic_entry {
Thomas Hellstrom8669cbc2006-08-07 22:22:10 +1000316 struct list_head head;
Dave Airliee0be4282007-07-12 10:26:44 +1000317 struct drm_hash_item hash_item;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000318 struct drm_file *priv;
Dave Airlie8fc2fdf2007-07-11 16:21:47 +1000319};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700320
Dave Airlie8fc2fdf2007-07-11 16:21:47 +1000321struct drm_vma_entry {
Dave Airliebd1b3312007-05-26 05:01:51 +1000322 struct list_head head;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700323 struct vm_area_struct *vma;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000324 pid_t pid;
Dave Airlie8fc2fdf2007-07-11 16:21:47 +1000325};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700326
327/**
328 * DMA buffer.
329 */
Dave Airlie056219e2007-07-11 16:17:42 +1000330struct drm_buf {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000331 int idx; /**< Index into master buflist */
332 int total; /**< Buffer size */
333 int order; /**< log-base-2(total) */
334 int used; /**< Amount of buffer in use (for DMA) */
335 unsigned long offset; /**< Byte offset (used internally) */
336 void *address; /**< Address of buffer */
337 unsigned long bus_address; /**< Bus address of buffer */
338 struct drm_buf *next; /**< Kernel-only: used for free list */
339 __volatile__ int waiting; /**< On kernel DMA queue */
340 __volatile__ int pending; /**< On hardware DMA queue */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700341 wait_queue_head_t dma_wait; /**< Processes waiting */
Eric Anholt6c340ea2007-08-25 20:23:09 +1000342 struct drm_file *file_priv; /**< Private of holding file descr */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000343 int context; /**< Kernel queue for this buffer */
344 int while_locked; /**< Dispatch this buffer while locked */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700345 enum {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000346 DRM_LIST_NONE = 0,
347 DRM_LIST_FREE = 1,
348 DRM_LIST_WAIT = 2,
349 DRM_LIST_PEND = 3,
350 DRM_LIST_PRIO = 4,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700351 DRM_LIST_RECLAIM = 5
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000352 } list; /**< Which list we're on */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700353
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000354 int dev_priv_size; /**< Size of buffer private storage */
355 void *dev_private; /**< Per-buffer private storage */
Dave Airlie056219e2007-07-11 16:17:42 +1000356};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700357
Linus Torvalds1da177e2005-04-16 15:20:36 -0700358/** bufs is one longer than it has to be */
Dave Airliecdd55a22007-07-11 16:32:08 +1000359struct drm_waitlist {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000360 int count; /**< Number of possible buffers */
Dave Airlie056219e2007-07-11 16:17:42 +1000361 struct drm_buf **bufs; /**< List of pointers to buffers */
362 struct drm_buf **rp; /**< Read pointer */
363 struct drm_buf **wp; /**< Write pointer */
364 struct drm_buf **end; /**< End pointer */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000365 spinlock_t read_lock;
366 spinlock_t write_lock;
Dave Airliecdd55a22007-07-11 16:32:08 +1000367};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700368
Dave Airliecdd55a22007-07-11 16:32:08 +1000369struct drm_freelist {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000370 int initialized; /**< Freelist in use */
371 atomic_t count; /**< Number of free buffers */
Dave Airlie056219e2007-07-11 16:17:42 +1000372 struct drm_buf *next; /**< End pointer */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700373
374 wait_queue_head_t waiting; /**< Processes waiting on free bufs */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000375 int low_mark; /**< Low water mark */
376 int high_mark; /**< High water mark */
377 atomic_t wfh; /**< If waiting for high mark */
378 spinlock_t lock;
Dave Airliecdd55a22007-07-11 16:32:08 +1000379};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700380
Dave Airlieddf19b92006-03-19 18:56:12 +1100381typedef struct drm_dma_handle {
382 dma_addr_t busaddr;
383 void *vaddr;
384 size_t size;
385} drm_dma_handle_t;
386
Linus Torvalds1da177e2005-04-16 15:20:36 -0700387/**
388 * Buffer entry. There is one of this for each buffer size order.
389 */
Dave Airliecdd55a22007-07-11 16:32:08 +1000390struct drm_buf_entry {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000391 int buf_size; /**< size */
392 int buf_count; /**< number of buffers */
Dave Airlie056219e2007-07-11 16:17:42 +1000393 struct drm_buf *buflist; /**< buffer list */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000394 int seg_count;
395 int page_order;
Dave Airliecdd55a22007-07-11 16:32:08 +1000396 struct drm_dma_handle **seglist;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700397
Dave Airliecdd55a22007-07-11 16:32:08 +1000398 struct drm_freelist freelist;
399};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700400
Kristian Høgsbergc9a9c5e2009-09-12 04:33:34 +1000401/* Event queued up for userspace to read */
402struct drm_pending_event {
403 struct drm_event *event;
404 struct list_head link;
405 struct drm_file *file_priv;
406 void (*destroy)(struct drm_pending_event *event);
407};
408
Linus Torvalds1da177e2005-04-16 15:20:36 -0700409/** File private data */
Dave Airlie84b1fd12007-07-11 15:53:27 +1000410struct drm_file {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000411 int authenticated;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000412 pid_t pid;
413 uid_t uid;
414 drm_magic_t magic;
415 unsigned long ioctl_count;
Dave Airliebd1b3312007-05-26 05:01:51 +1000416 struct list_head lhead;
Dave Airlie2c14f282008-04-21 16:47:32 +1000417 struct drm_minor *minor;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000418 unsigned long lock_count;
Dave Airlie7c1c2872008-11-28 14:22:24 +1000419
Eric Anholt673a3942008-07-30 12:06:12 -0700420 /** Mapping of mm object handles to object pointers. */
421 struct idr object_idr;
422 /** Lock for synchronization of access to object_idr. */
423 spinlock_t table_lock;
Dave Airlie7c1c2872008-11-28 14:22:24 +1000424
Eric Anholt6c340ea2007-08-25 20:23:09 +1000425 struct file *filp;
Dave Airlie8562b3f2007-11-05 12:37:41 +1000426 void *driver_priv;
Dave Airlie7c1c2872008-11-28 14:22:24 +1000427
428 int is_master; /* this file private is a master for a minor */
429 struct drm_master *master; /* master this node is currently associated with
430 N.B. not always minor->master */
Dave Airlief453ba02008-11-07 14:05:41 -0800431 struct list_head fbs;
Kristian Høgsbergc9a9c5e2009-09-12 04:33:34 +1000432
433 wait_queue_head_t event_wait;
434 struct list_head event_list;
435 int event_space;
Dave Airlie84b1fd12007-07-11 15:53:27 +1000436};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700437
438/** Wait queue */
Dave Airliecdd55a22007-07-11 16:32:08 +1000439struct drm_queue {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000440 atomic_t use_count; /**< Outstanding uses (+1) */
441 atomic_t finalization; /**< Finalization in progress */
442 atomic_t block_count; /**< Count of processes waiting */
443 atomic_t block_read; /**< Queue blocked for reads */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700444 wait_queue_head_t read_queue; /**< Processes waiting on block_read */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000445 atomic_t block_write; /**< Queue blocked for writes */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700446 wait_queue_head_t write_queue; /**< Processes waiting on block_write */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000447 atomic_t total_queued; /**< Total queued statistic */
448 atomic_t total_flushed; /**< Total flushes statistic */
449 atomic_t total_locks; /**< Total locks statistics */
Dave Airliec60ce622007-07-11 15:27:12 +1000450 enum drm_ctx_flags flags; /**< Context preserving and 2D-only */
Dave Airliecdd55a22007-07-11 16:32:08 +1000451 struct drm_waitlist waitlist; /**< Pending buffers */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700452 wait_queue_head_t flush_queue; /**< Processes waiting until flush */
Dave Airliecdd55a22007-07-11 16:32:08 +1000453};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700454
455/**
456 * Lock data.
457 */
Dave Airlie55910512007-07-11 16:53:40 +1000458struct drm_lock_data {
Dave Airliec60ce622007-07-11 15:27:12 +1000459 struct drm_hw_lock *hw_lock; /**< Hardware lock */
Dave Airlie8562b3f2007-11-05 12:37:41 +1000460 /** Private of lock holder's file (NULL=kernel) */
461 struct drm_file *file_priv;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700462 wait_queue_head_t lock_queue; /**< Queue of blocked processes */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000463 unsigned long lock_time; /**< Time of last lock in jiffies */
Thomas Hellstrom040ac322007-03-23 13:28:33 +1100464 spinlock_t spinlock;
465 uint32_t kernel_waiters;
466 uint32_t user_waiters;
467 int idle_has_lock;
Dave Airlie55910512007-07-11 16:53:40 +1000468};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700469
470/**
471 * DMA data.
472 */
Dave Airliecdd55a22007-07-11 16:32:08 +1000473struct drm_device_dma {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700474
Dave Airliecdd55a22007-07-11 16:32:08 +1000475 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000476 int buf_count; /**< total number of buffers */
Dave Airlie056219e2007-07-11 16:17:42 +1000477 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000478 int seg_count;
479 int page_count; /**< number of pages */
480 unsigned long *pagelist; /**< page list */
481 unsigned long byte_count;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700482 enum {
483 _DRM_DMA_USE_AGP = 0x01,
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000484 _DRM_DMA_USE_SG = 0x02,
George Sapountzis3417f332006-10-24 12:03:04 -0700485 _DRM_DMA_USE_FB = 0x04,
486 _DRM_DMA_USE_PCI_RO = 0x08
Linus Torvalds1da177e2005-04-16 15:20:36 -0700487 } flags;
488
Dave Airliecdd55a22007-07-11 16:32:08 +1000489};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700490
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000491/**
Linus Torvalds1da177e2005-04-16 15:20:36 -0700492 * AGP memory entry. Stored as a doubly linked list.
493 */
Dave Airlie55910512007-07-11 16:53:40 +1000494struct drm_agp_mem {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000495 unsigned long handle; /**< handle */
496 DRM_AGP_MEM *memory;
497 unsigned long bound; /**< address */
498 int pages;
Dave Airliebd1b3312007-05-26 05:01:51 +1000499 struct list_head head;
Dave Airlie55910512007-07-11 16:53:40 +1000500};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700501
502/**
503 * AGP data.
504 *
505 * \sa drm_agp_init() and drm_device::agp.
506 */
Dave Airlie55910512007-07-11 16:53:40 +1000507struct drm_agp_head {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000508 DRM_AGP_KERN agp_info; /**< AGP device information */
Dave Airliebd1b3312007-05-26 05:01:51 +1000509 struct list_head memory;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000510 unsigned long mode; /**< AGP mode */
511 struct agp_bridge_data *bridge;
512 int enabled; /**< whether the AGP bus as been enabled */
513 int acquired; /**< whether the AGP device has been acquired */
514 unsigned long base;
515 int agp_mtrr;
516 int cant_use_aperture;
517 unsigned long page_mask;
Dave Airlie55910512007-07-11 16:53:40 +1000518};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700519
520/**
521 * Scatter-gather memory.
522 */
Dave Airlie55910512007-07-11 16:53:40 +1000523struct drm_sg_mem {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000524 unsigned long handle;
525 void *virtual;
526 int pages;
527 struct page **pagelist;
528 dma_addr_t *busaddr;
Dave Airlie55910512007-07-11 16:53:40 +1000529};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700530
Dave Airlie55910512007-07-11 16:53:40 +1000531struct drm_sigdata {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000532 int context;
Dave Airliec60ce622007-07-11 15:27:12 +1000533 struct drm_hw_lock *lock;
Dave Airlie55910512007-07-11 16:53:40 +1000534};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700535
Dave Airlie8562b3f2007-11-05 12:37:41 +1000536
Linus Torvalds1da177e2005-04-16 15:20:36 -0700537/**
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +1100538 * Kernel side of a mapping
539 */
540struct drm_local_map {
Benjamin Herrenschmidt41c2e752009-02-02 16:55:47 +1100541 resource_size_t offset; /**< Requested physical address (0 for SAREA)*/
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +1100542 unsigned long size; /**< Requested physical size (bytes) */
543 enum drm_map_type type; /**< Type of memory to map */
544 enum drm_map_flags flags; /**< Flags */
545 void *handle; /**< User-space: "Handle" to pass to mmap() */
546 /**< Kernel-space: kernel-virtual address */
547 int mtrr; /**< MTRR slot used */
548};
549
550typedef struct drm_local_map drm_local_map_t;
551
552/**
Linus Torvalds1da177e2005-04-16 15:20:36 -0700553 * Mappings list
554 */
Dave Airlie55910512007-07-11 16:53:40 +1000555struct drm_map_list {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000556 struct list_head head; /**< list head */
Dave Airliee0be4282007-07-12 10:26:44 +1000557 struct drm_hash_item hash;
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +1100558 struct drm_local_map *map; /**< mapping */
Dave Airlie8562b3f2007-11-05 12:37:41 +1000559 uint64_t user_token;
Dave Airlie7c1c2872008-11-28 14:22:24 +1000560 struct drm_master *master;
Jesse Barnesa2c0a972008-11-05 10:31:53 -0800561 struct drm_mm_node *file_offset_node; /**< fake offset */
Dave Airlie55910512007-07-11 16:53:40 +1000562};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700563
Linus Torvalds1da177e2005-04-16 15:20:36 -0700564/**
565 * Context handle list
566 */
Dave Airlie55910512007-07-11 16:53:40 +1000567struct drm_ctx_list {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000568 struct list_head head; /**< list head */
569 drm_context_t handle; /**< context handle */
Dave Airlie84b1fd12007-07-11 15:53:27 +1000570 struct drm_file *tag; /**< associated fd private data */
Dave Airlie55910512007-07-11 16:53:40 +1000571};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700572
Dave Airlieea98a922005-09-11 20:28:11 +1000573/* location of GART table */
574#define DRM_ATI_GART_MAIN 1
575#define DRM_ATI_GART_FB 2
576
Dave Airlief2b04cd2007-05-08 15:19:23 +1000577#define DRM_ATI_GART_PCI 1
578#define DRM_ATI_GART_PCIE 2
579#define DRM_ATI_GART_IGP 3
580
Dave Airlie55910512007-07-11 16:53:40 +1000581struct drm_ati_pcigart_info {
Dave Airlieea98a922005-09-11 20:28:11 +1000582 int gart_table_location;
Dave Airlief2b04cd2007-05-08 15:19:23 +1000583 int gart_reg_if;
Dave Airlief26c4732006-01-02 17:18:39 +1100584 void *addr;
Dave Airlieea98a922005-09-11 20:28:11 +1000585 dma_addr_t bus_addr;
Dave Airlieb05c2382008-03-17 10:24:24 +1000586 dma_addr_t table_mask;
587 struct drm_dma_handle *table_handle;
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +1100588 struct drm_local_map mapping;
Dave Airlief2b04cd2007-05-08 15:19:23 +1000589 int table_size;
Dave Airlie55910512007-07-11 16:53:40 +1000590};
Dave Airlieea98a922005-09-11 20:28:11 +1000591
Linus Torvalds1da177e2005-04-16 15:20:36 -0700592/**
Jesse Barnesa2c0a972008-11-05 10:31:53 -0800593 * GEM specific mm private for tracking GEM objects
594 */
595struct drm_gem_mm {
596 struct drm_mm offset_manager; /**< Offset mgmt for buffer objects */
597 struct drm_open_hash offset_hash; /**< User token hash table for maps */
598};
599
600/**
Eric Anholt673a3942008-07-30 12:06:12 -0700601 * This structure defines the drm_mm memory object, which will be used by the
602 * DRM for its buffer objects.
603 */
604struct drm_gem_object {
605 /** Reference count of this object */
606 struct kref refcount;
607
608 /** Handle count of this object. Each handle also holds a reference */
609 struct kref handlecount;
610
611 /** Related drm device */
612 struct drm_device *dev;
613
614 /** File representing the shmem storage */
615 struct file *filp;
616
Jesse Barnesa2c0a972008-11-05 10:31:53 -0800617 /* Mapping info for this object */
618 struct drm_map_list map_list;
619
Eric Anholt673a3942008-07-30 12:06:12 -0700620 /**
621 * Size of the object, in bytes. Immutable over the object's
622 * lifetime.
623 */
624 size_t size;
625
626 /**
627 * Global name for this object, starts at 1. 0 means unnamed.
628 * Access is covered by the object_name_lock in the related drm_device
629 */
630 int name;
631
632 /**
633 * Memory domains. These monitor which caches contain read/write data
634 * related to the object. When transitioning from one set of domains
635 * to another, the driver is called to ensure that caches are suitably
636 * flushed and invalidated
637 */
638 uint32_t read_domains;
639 uint32_t write_domain;
640
641 /**
642 * While validating an exec operation, the
643 * new read/write domain values are computed here.
644 * They will be transferred to the above values
645 * at the point that any cache flushing occurs
646 */
647 uint32_t pending_read_domains;
648 uint32_t pending_write_domain;
649
650 void *driver_private;
651};
652
Dave Airlief453ba02008-11-07 14:05:41 -0800653#include "drm_crtc.h"
654
Dave Airlie7c1c2872008-11-28 14:22:24 +1000655/* per-master structure */
656struct drm_master {
657
658 struct kref refcount; /* refcount for this master */
659
660 struct list_head head; /**< each minor contains a list of masters */
661 struct drm_minor *minor; /**< link back to minor we are a master for */
662
663 char *unique; /**< Unique identifier: e.g., busid */
664 int unique_len; /**< Length of unique field */
Vegard Nossum1147c9c2008-12-02 13:38:47 +1000665 int unique_size; /**< amount allocated */
Dave Airlie7c1c2872008-11-28 14:22:24 +1000666
667 int blocked; /**< Blocked due to VC switch? */
668
669 /** \name Authentication */
670 /*@{ */
671 struct drm_open_hash magiclist;
672 struct list_head magicfree;
673 /*@} */
674
675 struct drm_lock_data lock; /**< Information on hardware lock */
676
677 void *driver_priv; /**< Private structure for driver to use */
678};
679
Eric Anholt673a3942008-07-30 12:06:12 -0700680/**
Linus Torvalds1da177e2005-04-16 15:20:36 -0700681 * DRM driver structure. This structure represent the common code for
682 * a family of cards. There will one drm_device for each card present
683 * in this family
684 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700685struct drm_driver {
Dave Airlie22eae942005-11-10 22:16:34 +1100686 int (*load) (struct drm_device *, unsigned long flags);
687 int (*firstopen) (struct drm_device *);
Dave Airlie84b1fd12007-07-11 15:53:27 +1000688 int (*open) (struct drm_device *, struct drm_file *);
Eric Anholt6c340ea2007-08-25 20:23:09 +1000689 void (*preclose) (struct drm_device *, struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +1000690 void (*postclose) (struct drm_device *, struct drm_file *);
Dave Airlie22eae942005-11-10 22:16:34 +1100691 void (*lastclose) (struct drm_device *);
692 int (*unload) (struct drm_device *);
Dave Airlieb932ccb2008-02-20 10:02:20 +1000693 int (*suspend) (struct drm_device *, pm_message_t state);
Jesse Barnese8b962b2007-11-22 14:02:38 +1000694 int (*resume) (struct drm_device *);
Eric Anholtc153f452007-09-03 12:06:45 +1000695 int (*dma_ioctl) (struct drm_device *dev, void *data, struct drm_file *file_priv);
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000696 void (*dma_ready) (struct drm_device *);
697 int (*dma_quiescent) (struct drm_device *);
Dave Airlie84b1fd12007-07-11 15:53:27 +1000698 int (*context_ctor) (struct drm_device *dev, int context);
699 int (*context_dtor) (struct drm_device *dev, int context);
700 int (*kernel_context_switch) (struct drm_device *dev, int old,
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000701 int new);
Dave Airlieaf6061a2008-05-07 12:15:39 +1000702 void (*kernel_context_switch_unlock) (struct drm_device *dev);
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000703
Dave Airliecda17382005-07-10 17:31:26 +1000704 /**
Jesse Barnes0a3e67a2008-09-30 12:14:26 -0700705 * get_vblank_counter - get raw hardware vblank counter
706 * @dev: DRM device
707 * @crtc: counter to fetch
708 *
709 * Driver callback for fetching a raw hardware vblank counter
710 * for @crtc. If a device doesn't have a hardware counter, the
711 * driver can simply return the value of drm_vblank_count and
712 * make the enable_vblank() and disable_vblank() hooks into no-ops,
713 * leaving interrupts enabled at all times.
714 *
715 * Wraparound handling and loss of events due to modesetting is dealt
716 * with in the DRM core code.
717 *
718 * RETURNS
719 * Raw vblank counter value.
720 */
721 u32 (*get_vblank_counter) (struct drm_device *dev, int crtc);
722
723 /**
724 * enable_vblank - enable vblank interrupt events
725 * @dev: DRM device
726 * @crtc: which irq to enable
727 *
728 * Enable vblank interrupts for @crtc. If the device doesn't have
729 * a hardware vblank counter, this routine should be a no-op, since
730 * interrupts will have to stay on to keep the count accurate.
731 *
732 * RETURNS
733 * Zero on success, appropriate errno if the given @crtc's vblank
734 * interrupt cannot be enabled.
735 */
736 int (*enable_vblank) (struct drm_device *dev, int crtc);
737
738 /**
739 * disable_vblank - disable vblank interrupt events
740 * @dev: DRM device
741 * @crtc: which irq to enable
742 *
743 * Disable vblank interrupts for @crtc. If the device doesn't have
744 * a hardware vblank counter, this routine should be a no-op, since
745 * interrupts will have to stay on to keep the count accurate.
746 */
747 void (*disable_vblank) (struct drm_device *dev, int crtc);
748
749 /**
Dave Airliecda17382005-07-10 17:31:26 +1000750 * Called by \c drm_device_is_agp. Typically used to determine if a
751 * card is really attached to AGP or not.
752 *
753 * \param dev DRM device handle
754 *
755 * \returns
756 * One of three values is returned depending on whether or not the
757 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
758 * (return of 1), or may or may not be AGP (return of 2).
759 */
Dave Airlie84b1fd12007-07-11 15:53:27 +1000760 int (*device_is_agp) (struct drm_device *dev);
Dave Airliecda17382005-07-10 17:31:26 +1000761
Linus Torvalds1da177e2005-04-16 15:20:36 -0700762 /* these have to be filled in */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000763
Dave Airlie22eae942005-11-10 22:16:34 +1100764 irqreturn_t(*irq_handler) (DRM_IRQ_ARGS);
Dave Airlie84b1fd12007-07-11 15:53:27 +1000765 void (*irq_preinstall) (struct drm_device *dev);
Jesse Barnes0a3e67a2008-09-30 12:14:26 -0700766 int (*irq_postinstall) (struct drm_device *dev);
Dave Airlie84b1fd12007-07-11 15:53:27 +1000767 void (*irq_uninstall) (struct drm_device *dev);
Eric Anholt6c340ea2007-08-25 20:23:09 +1000768 void (*reclaim_buffers) (struct drm_device *dev,
769 struct drm_file * file_priv);
Dave Airlied985c102006-01-02 21:32:48 +1100770 void (*reclaim_buffers_locked) (struct drm_device *dev,
Eric Anholt6c340ea2007-08-25 20:23:09 +1000771 struct drm_file *file_priv);
Thomas Hellstrom040ac322007-03-23 13:28:33 +1100772 void (*reclaim_buffers_idlelocked) (struct drm_device *dev,
Eric Anholt6c340ea2007-08-25 20:23:09 +1000773 struct drm_file *file_priv);
Benjamin Herrenschmidt41c2e752009-02-02 16:55:47 +1100774 resource_size_t (*get_map_ofs) (struct drm_local_map * map);
775 resource_size_t (*get_reg_ofs) (struct drm_device *dev);
Dave Airlie84b1fd12007-07-11 15:53:27 +1000776 void (*set_version) (struct drm_device *dev,
Dave Airliec60ce622007-07-11 15:27:12 +1000777 struct drm_set_version *sv);
Dave Airlie22eae942005-11-10 22:16:34 +1100778
Dave Airlie7c1c2872008-11-28 14:22:24 +1000779 /* Master routines */
780 int (*master_create)(struct drm_device *dev, struct drm_master *master);
781 void (*master_destroy)(struct drm_device *dev, struct drm_master *master);
Thomas Hellstrom862302f2009-12-02 18:15:25 +0000782 /**
783 * master_set is called whenever the minor master is set.
784 * master_drop is called whenever the minor master is dropped.
785 */
786
787 int (*master_set)(struct drm_device *dev, struct drm_file *file_priv,
788 bool from_open);
789 void (*master_drop)(struct drm_device *dev, struct drm_file *file_priv,
790 bool from_release);
Dave Airlie7c1c2872008-11-28 14:22:24 +1000791
Eric Anholt673a3942008-07-30 12:06:12 -0700792 int (*proc_init)(struct drm_minor *minor);
793 void (*proc_cleanup)(struct drm_minor *minor);
Ben Gamari955b12d2009-02-17 20:08:49 -0500794 int (*debugfs_init)(struct drm_minor *minor);
795 void (*debugfs_cleanup)(struct drm_minor *minor);
Eric Anholt673a3942008-07-30 12:06:12 -0700796
797 /**
798 * Driver-specific constructor for drm_gem_objects, to set up
799 * obj->driver_private.
800 *
801 * Returns 0 on success.
802 */
803 int (*gem_init_object) (struct drm_gem_object *obj);
804 void (*gem_free_object) (struct drm_gem_object *obj);
Luca Barbieric3ae90c2010-02-09 05:49:11 +0000805 void (*gem_free_object_unlocked) (struct drm_gem_object *obj);
Eric Anholt673a3942008-07-30 12:06:12 -0700806
Dave Airlie28d52042009-09-21 14:33:58 +1000807 /* vga arb irq handler */
808 void (*vgaarb_irq)(struct drm_device *dev, bool state);
809
Jesse Barnesa2c0a972008-11-05 10:31:53 -0800810 /* Driver private ops for this object */
811 struct vm_operations_struct *gem_vm_ops;
812
Dave Airlie22eae942005-11-10 22:16:34 +1100813 int major;
814 int minor;
815 int patchlevel;
816 char *name;
817 char *desc;
818 char *date;
819
Linus Torvalds1da177e2005-04-16 15:20:36 -0700820 u32 driver_features;
821 int dev_priv_size;
Eric Anholtc153f452007-09-03 12:06:45 +1000822 struct drm_ioctl_desc *ioctls;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700823 int num_ioctls;
824 struct file_operations fops;
825 struct pci_driver pci_driver;
Dave Airliee7f7ab42008-11-28 13:43:47 +1000826 /* List of devices hanging off this driver */
827 struct list_head device_list;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700828};
829
Dave Airlie2c14f282008-04-21 16:47:32 +1000830#define DRM_MINOR_UNASSIGNED 0
831#define DRM_MINOR_LEGACY 1
Dave Airlief453ba02008-11-07 14:05:41 -0800832#define DRM_MINOR_CONTROL 2
833#define DRM_MINOR_RENDER 3
Dave Airlie2c14f282008-04-21 16:47:32 +1000834
Ben Gamari955b12d2009-02-17 20:08:49 -0500835
836/**
837 * debugfs node list. This structure represents a debugfs file to
838 * be created by the drm core
839 */
840struct drm_debugfs_list {
841 const char *name; /** file name */
842 int (*show)(struct seq_file*, void*); /** show callback */
843 u32 driver_features; /**< Required driver features for this entry */
844};
845
846/**
847 * debugfs node structure. This structure represents a debugfs file.
848 */
849struct drm_debugfs_node {
850 struct list_head list;
851 struct drm_minor *minor;
852 struct drm_debugfs_list *debugfs_ent;
853 struct dentry *dent;
854};
855
856/**
857 * Info file list entry. This structure represents a debugfs or proc file to
858 * be created by the drm core
859 */
860struct drm_info_list {
861 const char *name; /** file name */
862 int (*show)(struct seq_file*, void*); /** show callback */
863 u32 driver_features; /**< Required driver features for this entry */
864 void *data;
865};
866
867/**
868 * debugfs node structure. This structure represents a debugfs file.
869 */
870struct drm_info_node {
871 struct list_head list;
872 struct drm_minor *minor;
873 struct drm_info_list *info_ent;
874 struct dentry *dent;
875};
876
Linus Torvalds1da177e2005-04-16 15:20:36 -0700877/**
Dave Airlie2c14f282008-04-21 16:47:32 +1000878 * DRM minor structure. This structure represents a drm minor number.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700879 */
Dave Airlie2c14f282008-04-21 16:47:32 +1000880struct drm_minor {
881 int index; /**< Minor device number */
882 int type; /**< Control or render */
883 dev_t device; /**< Device number for mknod */
884 struct device kdev; /**< Linux device */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700885 struct drm_device *dev;
Ben Gamari955b12d2009-02-17 20:08:49 -0500886
887 struct proc_dir_entry *proc_root; /**< proc directory entry */
888 struct drm_info_node proc_nodes;
889 struct dentry *debugfs_root;
890 struct drm_info_node debugfs_nodes;
891
Dave Airlie7c1c2872008-11-28 14:22:24 +1000892 struct drm_master *master; /* currently active master for this node */
893 struct list_head master_list;
Dave Airlief453ba02008-11-07 14:05:41 -0800894 struct drm_mode_group mode_group;
Dave Airlie84b1fd12007-07-11 15:53:27 +1000895};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700896
Kristian Høgsbergc9a9c5e2009-09-12 04:33:34 +1000897struct drm_pending_vblank_event {
898 struct drm_pending_event base;
899 int pipe;
900 struct drm_event_vblank event;
901};
902
Linus Torvalds1da177e2005-04-16 15:20:36 -0700903/**
904 * DRM device structure. This structure represent a complete card that
905 * may contain multiple heads.
906 */
Dave Airlie84b1fd12007-07-11 15:53:27 +1000907struct drm_device {
Dave Airliee7f7ab42008-11-28 13:43:47 +1000908 struct list_head driver_item; /**< list of devices per driver */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000909 char *devname; /**< For /proc/interrupts */
910 int if_version; /**< Highest interface version set */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700911
Linus Torvalds1da177e2005-04-16 15:20:36 -0700912 /** \name Locks */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000913 /*@{ */
914 spinlock_t count_lock; /**< For inuse, drm_device::open_count, drm_device::buf_use */
Dave Airlie30e2fb12006-02-02 19:37:46 +1100915 struct mutex struct_mutex; /**< For others */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000916 /*@} */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700917
918 /** \name Usage Counters */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000919 /*@{ */
920 int open_count; /**< Outstanding files open */
921 atomic_t ioctl_count; /**< Outstanding IOCTLs pending */
922 atomic_t vma_count; /**< Outstanding vma areas open */
923 int buf_use; /**< Buffers in use -- cannot alloc */
924 atomic_t buf_alloc; /**< Buffer allocation in progress */
925 /*@} */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700926
927 /** \name Performance counters */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000928 /*@{ */
929 unsigned long counters;
Dave Airliec60ce622007-07-11 15:27:12 +1000930 enum drm_stat_type types[15];
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000931 atomic_t counts[15];
932 /*@} */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700933
Dave Airliebd1b3312007-05-26 05:01:51 +1000934 struct list_head filelist;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700935
936 /** \name Memory management */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000937 /*@{ */
Dave Airliebd1b3312007-05-26 05:01:51 +1000938 struct list_head maplist; /**< Linked list of regions */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000939 int map_count; /**< Number of mappable regions */
Dave Airliee0be4282007-07-12 10:26:44 +1000940 struct drm_open_hash map_hash; /**< User token hash table for maps */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700941
942 /** \name Context handle management */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000943 /*@{ */
Dave Airliebd1b3312007-05-26 05:01:51 +1000944 struct list_head ctxlist; /**< Linked list of context handles */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000945 int ctx_count; /**< Number of context handles */
Dave Airlie30e2fb12006-02-02 19:37:46 +1100946 struct mutex ctxlist_mutex; /**< For ctxlist */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700947
Dave Airlie62968142007-07-17 10:46:52 +1000948 struct idr ctx_idr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700949
Dave Airliebd1b3312007-05-26 05:01:51 +1000950 struct list_head vmalist; /**< List of vmas (for debugging) */
Dave Airlief453ba02008-11-07 14:05:41 -0800951
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000952 /*@} */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700953
954 /** \name DMA queues (contexts) */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000955 /*@{ */
956 int queue_count; /**< Number of active DMA queues */
957 int queue_reserved; /**< Number of reserved DMA queues */
958 int queue_slots; /**< Actual length of queuelist */
Dave Airliecdd55a22007-07-11 16:32:08 +1000959 struct drm_queue **queuelist; /**< Vector of pointers to DMA queues */
960 struct drm_device_dma *dma; /**< Optional pointer for DMA support */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000961 /*@} */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700962
963 /** \name Context support */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000964 /*@{ */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000965 int irq_enabled; /**< True if irq handler is enabled */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700966 __volatile__ long context_flag; /**< Context swapping flag */
967 __volatile__ long interrupt_flag; /**< Interruption handler flag */
968 __volatile__ long dma_flag; /**< DMA dispatch flag */
969 struct timer_list timer; /**< Timer for delaying ctx switch */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000970 wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */
971 int last_checked; /**< Last context checked for DMA */
972 int last_context; /**< Last current context */
973 unsigned long last_switch; /**< jiffies at last context switch */
974 /*@} */
975
976 struct work_struct work;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700977 /** \name VBLANK IRQ support */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000978 /*@{ */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700979
Jesse Barnes0a3e67a2008-09-30 12:14:26 -0700980 /*
981 * At load time, disabling the vblank interrupt won't be allowed since
982 * old clients may not call the modeset ioctl and therefore misbehave.
983 * Once the modeset ioctl *has* been called though, we can safely
984 * disable them when unused.
985 */
986 int vblank_disable_allowed;
987
988 wait_queue_head_t *vbl_queue; /**< VBLANK wait queue */
989 atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000990 spinlock_t vbl_lock;
Jesse Barnes0a3e67a2008-09-30 12:14:26 -0700991 atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */
992 u32 *last_vblank; /* protected by dev->vbl_lock, used */
993 /* for wraparound handling */
994 int *vblank_enabled; /* so we don't call enable more than
995 once per disable */
996 int *vblank_inmodeset; /* Display driver is setting mode */
Eric Anholtfede5c92008-12-19 17:23:38 -0800997 u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */
Jesse Barnes0a3e67a2008-09-30 12:14:26 -0700998 struct timer_list vblank_disable_timer;
999
1000 u32 max_vblank_count; /**< size of vblank counter register */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001001
Kristian Høgsbergc9a9c5e2009-09-12 04:33:34 +10001002 /**
1003 * List of events
1004 */
1005 struct list_head vblank_event_list;
1006 spinlock_t event_lock;
1007
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001008 /*@} */
1009 cycles_t ctx_start;
1010 cycles_t lck_start;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001011
Linus Torvalds1da177e2005-04-16 15:20:36 -07001012 struct fasync_struct *buf_async;/**< Processes waiting for SIGIO */
1013 wait_queue_head_t buf_readers; /**< Processes waiting to read */
1014 wait_queue_head_t buf_writers; /**< Processes waiting to ctx switch */
1015
Dave Airlie55910512007-07-11 16:53:40 +10001016 struct drm_agp_head *agp; /**< AGP data */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001017
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001018 struct pci_dev *pdev; /**< PCI device structure */
Eric Anholt2f02cc32006-09-22 04:19:34 +10001019 int pci_vendor; /**< PCI vendor id */
1020 int pci_device; /**< PCI device id */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001021#ifdef __alpha__
Linus Torvalds1da177e2005-04-16 15:20:36 -07001022 struct pci_controller *hose;
1023#endif
Dave Airlie55910512007-07-11 16:53:40 +10001024 struct drm_sg_mem *sg; /**< Scatter gather memory */
Jesse Barnes0a3e67a2008-09-30 12:14:26 -07001025 int num_crtcs; /**< Number of CRTCs on this device */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001026 void *dev_private; /**< device private data */
Jesse Barnesa2c0a972008-11-05 10:31:53 -08001027 void *mm_private;
1028 struct address_space *dev_mapping;
Dave Airlie55910512007-07-11 16:53:40 +10001029 struct drm_sigdata sigdata; /**< For block_all_signals */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001030 sigset_t sigmask;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001031
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001032 struct drm_driver *driver;
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +11001033 struct drm_local_map *agp_buffer_map;
Dave Airlied1f2b552005-08-05 22:11:22 +10001034 unsigned int agp_buffer_token;
Dave Airlief453ba02008-11-07 14:05:41 -08001035 struct drm_minor *control; /**< Control node for card */
Dave Airlie2c14f282008-04-21 16:47:32 +10001036 struct drm_minor *primary; /**< render type primary screen head */
=?utf-8?q?Michel_D=C3=A4nzer?=bea56792006-10-24 23:04:19 +10001037
1038 /** \name Drawable information */
1039 /*@{ */
1040 spinlock_t drw_lock;
Dave Airlied4e2cbe2007-07-17 10:55:47 +10001041 struct idr drw_idr;
=?utf-8?q?Michel_D=C3=A4nzer?=bea56792006-10-24 23:04:19 +10001042 /*@} */
Eric Anholt673a3942008-07-30 12:06:12 -07001043
Dave Airlief453ba02008-11-07 14:05:41 -08001044 struct drm_mode_config mode_config; /**< Current mode config */
1045
Eric Anholt673a3942008-07-30 12:06:12 -07001046 /** \name GEM information */
1047 /*@{ */
1048 spinlock_t object_name_lock;
1049 struct idr object_name_idr;
1050 atomic_t object_count;
1051 atomic_t object_memory;
1052 atomic_t pin_count;
1053 atomic_t pin_memory;
1054 atomic_t gtt_count;
1055 atomic_t gtt_memory;
1056 uint32_t gtt_total;
1057 uint32_t invalidate_domains; /* domains pending invalidation */
1058 uint32_t flush_domains; /* domains pending flush */
1059 /*@} */
1060
Dave Airlie84b1fd12007-07-11 15:53:27 +10001061};
Linus Torvalds1da177e2005-04-16 15:20:36 -07001062
Jesse Barnes9bfbd5c2008-09-15 15:00:33 -07001063static inline int drm_dev_to_irq(struct drm_device *dev)
1064{
1065 return dev->pdev->irq;
1066}
1067
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001068static __inline__ int drm_core_check_feature(struct drm_device *dev,
1069 int feature)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001070{
1071 return ((dev->driver->driver_features & feature) ? 1 : 0);
1072}
1073
Dave Airlie332296012006-08-07 20:23:42 +10001074#ifdef __alpha__
Jay Estabrook62442702007-03-11 11:46:27 +11001075#define drm_get_pci_domain(dev) dev->hose->index
Dave Airlie332296012006-08-07 20:23:42 +10001076#else
Dave Airlie9b1a51b2006-09-22 03:37:19 +10001077#define drm_get_pci_domain(dev) 0
Dave Airlie332296012006-08-07 20:23:42 +10001078#endif
1079
Linus Torvalds1da177e2005-04-16 15:20:36 -07001080#if __OS_HAS_AGP
1081static inline int drm_core_has_AGP(struct drm_device *dev)
1082{
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001083 return drm_core_check_feature(dev, DRIVER_USE_AGP);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001084}
1085#else
1086#define drm_core_has_AGP(dev) (0)
1087#endif
1088
1089#if __OS_HAS_MTRR
1090static inline int drm_core_has_MTRR(struct drm_device *dev)
1091{
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001092 return drm_core_check_feature(dev, DRIVER_USE_MTRR);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001093}
Dave Airlie269dc512006-01-02 16:23:01 +11001094
1095#define DRM_MTRR_WC MTRR_TYPE_WRCOMB
1096
1097static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
1098 unsigned int flags)
1099{
1100 return mtrr_add(offset, size, flags, 1);
1101}
1102
1103static inline int drm_mtrr_del(int handle, unsigned long offset,
1104 unsigned long size, unsigned int flags)
1105{
1106 return mtrr_del(handle, offset, size);
1107}
1108
Linus Torvalds1da177e2005-04-16 15:20:36 -07001109#else
1110#define drm_core_has_MTRR(dev) (0)
Dave Airlie9c7d4622006-01-12 20:44:30 +11001111
1112#define DRM_MTRR_WC 0
1113
1114static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
1115 unsigned int flags)
1116{
1117 return 0;
1118}
1119
1120static inline int drm_mtrr_del(int handle, unsigned long offset,
1121 unsigned long size, unsigned int flags)
1122{
1123 return 0;
1124}
Linus Torvalds1da177e2005-04-16 15:20:36 -07001125#endif
1126
1127/******************************************************************/
1128/** \name Internal function definitions */
1129/*@{*/
1130
Linus Torvalds1da177e2005-04-16 15:20:36 -07001131 /* Driver support (drm_drv.h) */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001132extern int drm_init(struct drm_driver *driver);
1133extern void drm_exit(struct drm_driver *driver);
Arnd Bergmanned8b6702009-12-16 22:17:09 +00001134extern long drm_ioctl(struct file *filp,
1135 unsigned int cmd, unsigned long arg);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001136extern long drm_compat_ioctl(struct file *filp,
1137 unsigned int cmd, unsigned long arg);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001138extern int drm_lastclose(struct drm_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001139
1140 /* Device support (drm_fops.h) */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001141extern int drm_open(struct inode *inode, struct file *filp);
1142extern int drm_stub_open(struct inode *inode, struct file *filp);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001143extern int drm_fasync(int fd, struct file *filp, int on);
Kristian Høgsbergc9a9c5e2009-09-12 04:33:34 +10001144extern ssize_t drm_read(struct file *filp, char __user *buffer,
1145 size_t count, loff_t *offset);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001146extern int drm_release(struct inode *inode, struct file *filp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001147
1148 /* Mapping support (drm_vm.h) */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001149extern int drm_mmap(struct file *filp, struct vm_area_struct *vma);
Jesse Barnesa2c0a972008-11-05 10:31:53 -08001150extern int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma);
1151extern void drm_vm_open_locked(struct vm_area_struct *vma);
Benjamin Herrenschmidt41c2e752009-02-02 16:55:47 +11001152extern resource_size_t drm_core_get_map_ofs(struct drm_local_map * map);
1153extern resource_size_t drm_core_get_reg_ofs(struct drm_device *dev);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001154extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001155
1156 /* Memory management support (drm_memory.h) */
1157#include "drm_memory.h"
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001158extern void drm_mem_init(void);
1159extern int drm_mem_info(char *buf, char **start, off_t offset,
1160 int request, int *eof, void *data);
1161extern void *drm_realloc(void *oldpt, size_t oldsize, size_t size, int area);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001162
Dave Airlie84b1fd12007-07-11 15:53:27 +10001163extern DRM_AGP_MEM *drm_alloc_agp(struct drm_device *dev, int pages, u32 type);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001164extern int drm_free_agp(DRM_AGP_MEM * handle, int pages);
1165extern int drm_bind_agp(DRM_AGP_MEM * handle, unsigned int start);
Eric Anholt673a3942008-07-30 12:06:12 -07001166extern DRM_AGP_MEM *drm_agp_bind_pages(struct drm_device *dev,
1167 struct page **pages,
1168 unsigned long num_pages,
Keith Packardba1eb1d2008-10-14 19:55:10 -07001169 uint32_t gtt_offset,
1170 uint32_t type);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001171extern int drm_unbind_agp(DRM_AGP_MEM * handle);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001172
1173 /* Misc. IOCTL support (drm_ioctl.h) */
Eric Anholtc153f452007-09-03 12:06:45 +10001174extern int drm_irq_by_busid(struct drm_device *dev, void *data,
1175 struct drm_file *file_priv);
1176extern int drm_getunique(struct drm_device *dev, void *data,
1177 struct drm_file *file_priv);
1178extern int drm_setunique(struct drm_device *dev, void *data,
1179 struct drm_file *file_priv);
1180extern int drm_getmap(struct drm_device *dev, void *data,
1181 struct drm_file *file_priv);
1182extern int drm_getclient(struct drm_device *dev, void *data,
1183 struct drm_file *file_priv);
1184extern int drm_getstats(struct drm_device *dev, void *data,
1185 struct drm_file *file_priv);
1186extern int drm_setversion(struct drm_device *dev, void *data,
1187 struct drm_file *file_priv);
1188extern int drm_noop(struct drm_device *dev, void *data,
1189 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001190
1191 /* Context IOCTL support (drm_context.h) */
Eric Anholtc153f452007-09-03 12:06:45 +10001192extern int drm_resctx(struct drm_device *dev, void *data,
1193 struct drm_file *file_priv);
1194extern int drm_addctx(struct drm_device *dev, void *data,
1195 struct drm_file *file_priv);
1196extern int drm_modctx(struct drm_device *dev, void *data,
1197 struct drm_file *file_priv);
1198extern int drm_getctx(struct drm_device *dev, void *data,
1199 struct drm_file *file_priv);
1200extern int drm_switchctx(struct drm_device *dev, void *data,
1201 struct drm_file *file_priv);
1202extern int drm_newctx(struct drm_device *dev, void *data,
1203 struct drm_file *file_priv);
1204extern int drm_rmctx(struct drm_device *dev, void *data,
1205 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001206
Dave Airlie84b1fd12007-07-11 15:53:27 +10001207extern int drm_ctxbitmap_init(struct drm_device *dev);
1208extern void drm_ctxbitmap_cleanup(struct drm_device *dev);
1209extern void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001210
Eric Anholtc153f452007-09-03 12:06:45 +10001211extern int drm_setsareactx(struct drm_device *dev, void *data,
1212 struct drm_file *file_priv);
1213extern int drm_getsareactx(struct drm_device *dev, void *data,
1214 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001215
1216 /* Drawable IOCTL support (drm_drawable.h) */
Eric Anholtc153f452007-09-03 12:06:45 +10001217extern int drm_adddraw(struct drm_device *dev, void *data,
1218 struct drm_file *file_priv);
1219extern int drm_rmdraw(struct drm_device *dev, void *data,
1220 struct drm_file *file_priv);
1221extern int drm_update_drawable_info(struct drm_device *dev, void *data,
1222 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001223extern 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 +10001224 drm_drawable_t id);
Dave Airlied4e2cbe2007-07-17 10:55:47 +10001225extern void drm_drawable_free_all(struct drm_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001226
1227 /* Authentication IOCTL support (drm_auth.h) */
Eric Anholtc153f452007-09-03 12:06:45 +10001228extern int drm_getmagic(struct drm_device *dev, void *data,
1229 struct drm_file *file_priv);
1230extern int drm_authmagic(struct drm_device *dev, void *data,
1231 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001232
Eric Anholt673a3942008-07-30 12:06:12 -07001233/* Cache management (drm_cache.c) */
1234void drm_clflush_pages(struct page *pages[], unsigned long num_pages);
1235
Linus Torvalds1da177e2005-04-16 15:20:36 -07001236 /* Locking IOCTL support (drm_lock.h) */
Eric Anholtc153f452007-09-03 12:06:45 +10001237extern int drm_lock(struct drm_device *dev, void *data,
1238 struct drm_file *file_priv);
1239extern int drm_unlock(struct drm_device *dev, void *data,
1240 struct drm_file *file_priv);
Dave Airlie55910512007-07-11 16:53:40 +10001241extern int drm_lock_take(struct drm_lock_data *lock_data, unsigned int context);
1242extern int drm_lock_free(struct drm_lock_data *lock_data, unsigned int context);
1243extern void drm_idlelock_take(struct drm_lock_data *lock_data);
1244extern void drm_idlelock_release(struct drm_lock_data *lock_data);
Thomas Hellstrom040ac322007-03-23 13:28:33 +11001245
1246/*
1247 * These are exported to drivers so that they can implement fencing using
1248 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
1249 */
1250
Eric Anholtc153f452007-09-03 12:06:45 +10001251extern int drm_i_have_hw_lock(struct drm_device *dev, struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001252
1253 /* Buffer management support (drm_bufs.h) */
Dave Airlie84b1fd12007-07-11 15:53:27 +10001254extern int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc * request);
1255extern int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc * request);
Benjamin Herrenschmidt41c2e752009-02-02 16:55:47 +11001256extern int drm_addmap(struct drm_device *dev, resource_size_t offset,
Dave Airliec60ce622007-07-11 15:27:12 +10001257 unsigned int size, enum drm_map_type type,
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +11001258 enum drm_map_flags flags, struct drm_local_map **map_ptr);
Eric Anholtc153f452007-09-03 12:06:45 +10001259extern int drm_addmap_ioctl(struct drm_device *dev, void *data,
1260 struct drm_file *file_priv);
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +11001261extern int drm_rmmap(struct drm_device *dev, struct drm_local_map *map);
1262extern int drm_rmmap_locked(struct drm_device *dev, struct drm_local_map *map);
Eric Anholtc153f452007-09-03 12:06:45 +10001263extern int drm_rmmap_ioctl(struct drm_device *dev, void *data,
1264 struct drm_file *file_priv);
1265extern int drm_addbufs(struct drm_device *dev, void *data,
1266 struct drm_file *file_priv);
1267extern int drm_infobufs(struct drm_device *dev, void *data,
1268 struct drm_file *file_priv);
1269extern int drm_markbufs(struct drm_device *dev, void *data,
1270 struct drm_file *file_priv);
1271extern int drm_freebufs(struct drm_device *dev, void *data,
1272 struct drm_file *file_priv);
1273extern int drm_mapbufs(struct drm_device *dev, void *data,
1274 struct drm_file *file_priv);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001275extern int drm_order(unsigned long size);
Benjamin Herrenschmidtd883f7f2009-02-02 16:55:45 +11001276extern resource_size_t drm_get_resource_start(struct drm_device *dev,
1277 unsigned int resource);
1278extern resource_size_t drm_get_resource_len(struct drm_device *dev,
Dave Airlie836cf042005-07-10 19:27:04 +10001279 unsigned int resource);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001280
1281 /* DMA support (drm_dma.h) */
Dave Airlie84b1fd12007-07-11 15:53:27 +10001282extern int drm_dma_setup(struct drm_device *dev);
1283extern void drm_dma_takedown(struct drm_device *dev);
Dave Airlie056219e2007-07-11 16:17:42 +10001284extern void drm_free_buffer(struct drm_device *dev, struct drm_buf * buf);
Eric Anholt6c340ea2007-08-25 20:23:09 +10001285extern void drm_core_reclaim_buffers(struct drm_device *dev,
1286 struct drm_file *filp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001287
1288 /* IRQ support (drm_irq.h) */
Eric Anholtc153f452007-09-03 12:06:45 +10001289extern int drm_control(struct drm_device *dev, void *data,
1290 struct drm_file *file_priv);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001291extern irqreturn_t drm_irq_handler(DRM_IRQ_ARGS);
Kristian Høgsbergdbb19d32008-08-20 11:04:27 -04001292extern int drm_irq_install(struct drm_device *dev);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001293extern int drm_irq_uninstall(struct drm_device *dev);
1294extern void drm_driver_irq_preinstall(struct drm_device *dev);
1295extern void drm_driver_irq_postinstall(struct drm_device *dev);
1296extern void drm_driver_irq_uninstall(struct drm_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001297
Jesse Barnes0a3e67a2008-09-30 12:14:26 -07001298extern int drm_vblank_init(struct drm_device *dev, int num_crtcs);
Dave Airlieaf6061a2008-05-07 12:15:39 +10001299extern int drm_wait_vblank(struct drm_device *dev, void *data,
Jesse Barnes0a3e67a2008-09-30 12:14:26 -07001300 struct drm_file *filp);
Dave Airlieaf6061a2008-05-07 12:15:39 +10001301extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq);
Jesse Barnes0a3e67a2008-09-30 12:14:26 -07001302extern u32 drm_vblank_count(struct drm_device *dev, int crtc);
1303extern void drm_handle_vblank(struct drm_device *dev, int crtc);
1304extern int drm_vblank_get(struct drm_device *dev, int crtc);
1305extern void drm_vblank_put(struct drm_device *dev, int crtc);
Li Peng778c9022009-11-09 12:51:22 +08001306extern void drm_vblank_off(struct drm_device *dev, int crtc);
Keith Packard52440212008-11-18 09:30:25 -08001307extern void drm_vblank_cleanup(struct drm_device *dev);
Jesse Barnes0a3e67a2008-09-30 12:14:26 -07001308/* Modesetting support */
Dave Airlief453ba02008-11-07 14:05:41 -08001309extern void drm_vblank_pre_modeset(struct drm_device *dev, int crtc);
1310extern void drm_vblank_post_modeset(struct drm_device *dev, int crtc);
Jesse Barnes0a3e67a2008-09-30 12:14:26 -07001311extern int drm_modeset_ctl(struct drm_device *dev, void *data,
1312 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001313
1314 /* AGP/GART support (drm_agpsupport.h) */
Dave Airlie55910512007-07-11 16:53:40 +10001315extern struct drm_agp_head *drm_agp_init(struct drm_device *dev);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001316extern int drm_agp_acquire(struct drm_device *dev);
Eric Anholtc153f452007-09-03 12:06:45 +10001317extern int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
1318 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001319extern int drm_agp_release(struct drm_device *dev);
Eric Anholtc153f452007-09-03 12:06:45 +10001320extern int drm_agp_release_ioctl(struct drm_device *dev, void *data,
1321 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001322extern int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode);
Eric Anholtc153f452007-09-03 12:06:45 +10001323extern int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
1324 struct drm_file *file_priv);
1325extern int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info);
1326extern int drm_agp_info_ioctl(struct drm_device *dev, void *data,
1327 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001328extern int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request);
Eric Anholtc153f452007-09-03 12:06:45 +10001329extern int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
1330 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001331extern int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request);
Eric Anholtc153f452007-09-03 12:06:45 +10001332extern int drm_agp_free_ioctl(struct drm_device *dev, void *data,
1333 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001334extern int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request);
Eric Anholtc153f452007-09-03 12:06:45 +10001335extern int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
1336 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001337extern int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
Eric Anholtc153f452007-09-03 12:06:45 +10001338extern int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
1339 struct drm_file *file_priv);
1340extern DRM_AGP_MEM *drm_agp_allocate_memory(struct agp_bridge_data *bridge, size_t pages, u32 type);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001341extern int drm_agp_free_memory(DRM_AGP_MEM * handle);
1342extern int drm_agp_bind_memory(DRM_AGP_MEM * handle, off_t start);
1343extern int drm_agp_unbind_memory(DRM_AGP_MEM * handle);
Eric Anholt673a3942008-07-30 12:06:12 -07001344extern void drm_agp_chipset_flush(struct drm_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001345
1346 /* Stub support (drm_stub.h) */
Dave Airlie7c1c2872008-11-28 14:22:24 +10001347extern int drm_setmaster_ioctl(struct drm_device *dev, void *data,
1348 struct drm_file *file_priv);
1349extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
1350 struct drm_file *file_priv);
1351struct drm_master *drm_master_create(struct drm_minor *minor);
1352extern struct drm_master *drm_master_get(struct drm_master *master);
1353extern void drm_master_put(struct drm_master **master);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001354extern int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001355 struct drm_driver *driver);
Kristian Høgsberg112b7152009-01-04 16:55:33 -05001356extern void drm_put_dev(struct drm_device *dev);
Dave Airlie2c14f282008-04-21 16:47:32 +10001357extern int drm_put_minor(struct drm_minor **minor);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001358extern unsigned int drm_debug;
Dave Airlie2c14f282008-04-21 16:47:32 +10001359
Greg Kroah-Hartman0650fd52006-01-20 14:08:59 -08001360extern struct class *drm_class;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001361extern struct proc_dir_entry *drm_proc_root;
Ben Gamari955b12d2009-02-17 20:08:49 -05001362extern struct dentry *drm_debugfs_root;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001363
Dave Airlie2c14f282008-04-21 16:47:32 +10001364extern struct idr drm_minors_idr;
1365
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +11001366extern struct drm_local_map *drm_getsarea(struct drm_device *dev);
Dave Airlieda509d72007-05-26 05:04:51 +10001367
Linus Torvalds1da177e2005-04-16 15:20:36 -07001368 /* Proc support (drm_proc.h) */
Dave Airlie2c14f282008-04-21 16:47:32 +10001369extern int drm_proc_init(struct drm_minor *minor, int minor_id,
1370 struct proc_dir_entry *root);
1371extern int drm_proc_cleanup(struct drm_minor *minor, struct proc_dir_entry *root);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001372
Ben Gamari955b12d2009-02-17 20:08:49 -05001373 /* Debugfs support */
1374#if defined(CONFIG_DEBUG_FS)
1375extern int drm_debugfs_init(struct drm_minor *minor, int minor_id,
1376 struct dentry *root);
1377extern int drm_debugfs_create_files(struct drm_info_list *files, int count,
1378 struct dentry *root, struct drm_minor *minor);
1379extern int drm_debugfs_remove_files(struct drm_info_list *files, int count,
1380 struct drm_minor *minor);
1381extern int drm_debugfs_cleanup(struct drm_minor *minor);
1382#endif
1383
1384 /* Info file support */
1385extern int drm_name_info(struct seq_file *m, void *data);
1386extern int drm_vm_info(struct seq_file *m, void *data);
1387extern int drm_queues_info(struct seq_file *m, void *data);
1388extern int drm_bufs_info(struct seq_file *m, void *data);
1389extern int drm_vblank_info(struct seq_file *m, void *data);
1390extern int drm_clients_info(struct seq_file *m, void* data);
1391extern int drm_gem_name_info(struct seq_file *m, void *data);
1392extern int drm_gem_object_info(struct seq_file *m, void* data);
1393
1394#if DRM_DEBUG_CODE
1395extern int drm_vma_info(struct seq_file *m, void *data);
1396#endif
1397
Linus Torvalds1da177e2005-04-16 15:20:36 -07001398 /* Scatter Gather Support (drm_scatter.h) */
Dave Airlie55910512007-07-11 16:53:40 +10001399extern void drm_sg_cleanup(struct drm_sg_mem * entry);
Eric Anholtc153f452007-09-03 12:06:45 +10001400extern int drm_sg_alloc_ioctl(struct drm_device *dev, void *data,
1401 struct drm_file *file_priv);
1402extern int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request);
1403extern int drm_sg_free(struct drm_device *dev, void *data,
1404 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001405
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001406 /* ATI PCIGART support (ati_pcigart.h) */
Dave Airlie84b1fd12007-07-11 15:53:27 +10001407extern int drm_ati_pcigart_init(struct drm_device *dev,
Dave Airlie55910512007-07-11 16:53:40 +10001408 struct drm_ati_pcigart_info * gart_info);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001409extern int drm_ati_pcigart_cleanup(struct drm_device *dev,
Dave Airlie55910512007-07-11 16:53:40 +10001410 struct drm_ati_pcigart_info * gart_info);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001411
Dave Airlie84b1fd12007-07-11 15:53:27 +10001412extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
Zhenyu Wange6be8d92010-01-05 11:25:05 +08001413 size_t align);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001414extern void __drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
1415extern void drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001416
1417 /* sysfs support (drm_sysfs.c) */
Jesse Barnese8b962b2007-11-22 14:02:38 +10001418struct drm_sysfs_class;
Greg Kroah-Hartman0650fd52006-01-20 14:08:59 -08001419extern struct class *drm_sysfs_create(struct module *owner, char *name);
Jesse Barnese8b962b2007-11-22 14:02:38 +10001420extern void drm_sysfs_destroy(void);
Dave Airlie2c14f282008-04-21 16:47:32 +10001421extern int drm_sysfs_device_add(struct drm_minor *minor);
Dave Airlief453ba02008-11-07 14:05:41 -08001422extern void drm_sysfs_hotplug_event(struct drm_device *dev);
Dave Airlie2c14f282008-04-21 16:47:32 +10001423extern void drm_sysfs_device_remove(struct drm_minor *minor);
Dave Airlief453ba02008-11-07 14:05:41 -08001424extern char *drm_get_connector_status_name(enum drm_connector_status status);
1425extern int drm_sysfs_connector_add(struct drm_connector *connector);
1426extern void drm_sysfs_connector_remove(struct drm_connector *connector);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001427
Eric Anholt673a3942008-07-30 12:06:12 -07001428/* Graphics Execution Manager library functions (drm_gem.c) */
1429int drm_gem_init(struct drm_device *dev);
Jesse Barnesa2c0a972008-11-05 10:31:53 -08001430void drm_gem_destroy(struct drm_device *dev);
Daniel Vetterfd632aa2010-04-09 19:05:05 +00001431void drm_gem_object_release(struct drm_gem_object *obj);
Eric Anholt673a3942008-07-30 12:06:12 -07001432void drm_gem_object_free(struct kref *kref);
Luca Barbieric3ae90c2010-02-09 05:49:11 +00001433void drm_gem_object_free_unlocked(struct kref *kref);
Eric Anholt673a3942008-07-30 12:06:12 -07001434struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev,
1435 size_t size);
Daniel Vetter1d397042010-04-09 19:05:04 +00001436int drm_gem_object_init(struct drm_device *dev,
1437 struct drm_gem_object *obj, size_t size);
Eric Anholt673a3942008-07-30 12:06:12 -07001438void drm_gem_object_handle_free(struct kref *kref);
Jesse Barnesab00b3e2009-02-11 14:01:46 -08001439void drm_gem_vm_open(struct vm_area_struct *vma);
1440void drm_gem_vm_close(struct vm_area_struct *vma);
Jesse Barnesa2c0a972008-11-05 10:31:53 -08001441int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
Eric Anholt673a3942008-07-30 12:06:12 -07001442
1443static inline void
1444drm_gem_object_reference(struct drm_gem_object *obj)
1445{
1446 kref_get(&obj->refcount);
1447}
1448
1449static inline void
1450drm_gem_object_unreference(struct drm_gem_object *obj)
1451{
Luca Barbieric3ae90c2010-02-09 05:49:11 +00001452 if (obj != NULL)
1453 kref_put(&obj->refcount, drm_gem_object_free);
1454}
Eric Anholt673a3942008-07-30 12:06:12 -07001455
Luca Barbieric3ae90c2010-02-09 05:49:11 +00001456static inline void
1457drm_gem_object_unreference_unlocked(struct drm_gem_object *obj)
1458{
1459 if (obj != NULL)
1460 kref_put(&obj->refcount, drm_gem_object_free_unlocked);
Eric Anholt673a3942008-07-30 12:06:12 -07001461}
1462
1463int drm_gem_handle_create(struct drm_file *file_priv,
1464 struct drm_gem_object *obj,
Pekka Paalanena1a2d1d2009-08-23 12:40:55 +03001465 u32 *handlep);
Eric Anholt673a3942008-07-30 12:06:12 -07001466
1467static inline void
1468drm_gem_object_handle_reference(struct drm_gem_object *obj)
1469{
1470 drm_gem_object_reference(obj);
1471 kref_get(&obj->handlecount);
1472}
1473
1474static inline void
1475drm_gem_object_handle_unreference(struct drm_gem_object *obj)
1476{
1477 if (obj == NULL)
1478 return;
1479
1480 /*
1481 * Must bump handle count first as this may be the last
1482 * ref, in which case the object would disappear before we
1483 * checked for a name
1484 */
1485 kref_put(&obj->handlecount, drm_gem_object_handle_free);
1486 drm_gem_object_unreference(obj);
1487}
1488
Luca Barbieric3ae90c2010-02-09 05:49:11 +00001489static inline void
1490drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj)
1491{
1492 if (obj == NULL)
1493 return;
1494
1495 /*
1496 * Must bump handle count first as this may be the last
1497 * ref, in which case the object would disappear before we
1498 * checked for a name
1499 */
1500 kref_put(&obj->handlecount, drm_gem_object_handle_free);
1501 drm_gem_object_unreference_unlocked(obj);
1502}
1503
Eric Anholt673a3942008-07-30 12:06:12 -07001504struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev,
1505 struct drm_file *filp,
Pekka Paalanena1a2d1d2009-08-23 12:40:55 +03001506 u32 handle);
Eric Anholt673a3942008-07-30 12:06:12 -07001507int drm_gem_close_ioctl(struct drm_device *dev, void *data,
1508 struct drm_file *file_priv);
1509int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
1510 struct drm_file *file_priv);
1511int drm_gem_open_ioctl(struct drm_device *dev, void *data,
1512 struct drm_file *file_priv);
1513void drm_gem_open(struct drm_device *dev, struct drm_file *file_private);
1514void drm_gem_release(struct drm_device *dev, struct drm_file *file_private);
1515
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +11001516extern void drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev);
1517extern void drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev);
1518extern void drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001519
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +11001520static __inline__ struct drm_local_map *drm_core_findmap(struct drm_device *dev,
1521 unsigned int token)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001522{
Dave Airlie55910512007-07-11 16:53:40 +10001523 struct drm_map_list *_entry;
Dave Airliebd1b3312007-05-26 05:01:51 +10001524 list_for_each_entry(_entry, &dev->maplist, head)
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001525 if (_entry->user_token == token)
1526 return _entry->map;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001527 return NULL;
1528}
1529
Dave Airlie84b1fd12007-07-11 15:53:27 +10001530static __inline__ int drm_device_is_agp(struct drm_device *dev)
Dave Airliecda17382005-07-10 17:31:26 +10001531{
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001532 if (dev->driver->device_is_agp != NULL) {
1533 int err = (*dev->driver->device_is_agp) (dev);
1534
Dave Airliecda17382005-07-10 17:31:26 +10001535 if (err != 2) {
1536 return err;
1537 }
1538 }
1539
1540 return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP);
1541}
1542
Dave Airlie84b1fd12007-07-11 15:53:27 +10001543static __inline__ int drm_device_is_pcie(struct drm_device *dev)
Dave Airlieea98a922005-09-11 20:28:11 +10001544{
1545 return pci_find_capability(dev->pdev, PCI_CAP_ID_EXP);
1546}
1547
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +11001548static __inline__ void drm_core_dropmap(struct drm_local_map *map)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001549{
1550}
1551
Dave Airlie72e942d2010-03-09 06:33:26 +00001552#include "drm_mem_util.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001553/*@}*/
1554
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001555#endif /* __KERNEL__ */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001556#endif