blob: 274eaaa15c36a86ee48a6b743f6c9d7cfb36b010 [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.
Jordan Crousedcdb1672010-05-27 13:40:25 -060012 * Copyright (c) 2009-2010, Code Aurora Forum.
Linus Torvalds1da177e2005-04-16 15:20:36 -070013 * All rights reserved.
14 *
15 * Permission is hereby granted, free of charge, to any person obtaining a
16 * copy of this software and associated documentation files (the "Software"),
17 * to deal in the Software without restriction, including without limitation
18 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
19 * and/or sell copies of the Software, and to permit persons to whom the
20 * Software is furnished to do so, subject to the following conditions:
21 *
22 * The above copyright notice and this permission notice (including the next
23 * paragraph) shall be included in all copies or substantial portions of the
24 * Software.
25 *
26 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
27 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
28 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
29 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
30 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
31 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
32 * OTHER DEALINGS IN THE SOFTWARE.
33 */
34
35#ifndef _DRM_P_H_
36#define _DRM_P_H_
37
Linus Torvalds1da177e2005-04-16 15:20:36 -070038#ifdef __KERNEL__
39#ifdef __alpha__
40/* add include of current.h so that "current" is defined
41 * before static inline funcs in wait.h. Doing this so we
42 * can build the DRM (part of PI DRI). 4/21/2000 S + B */
43#include <asm/current.h>
Dave Airlieb5e89ed2005-09-25 14:28:13 +100044#endif /* __alpha__ */
Linus Torvalds1da177e2005-04-16 15:20:36 -070045#include <linux/module.h>
46#include <linux/kernel.h>
47#include <linux/miscdevice.h>
48#include <linux/fs.h>
49#include <linux/proc_fs.h>
50#include <linux/init.h>
51#include <linux/file.h>
Jordan Crousedcdb1672010-05-27 13:40:25 -060052#include <linux/platform_device.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070053#include <linux/pci.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070054#include <linux/jiffies.h>
Dave Airlieb05c2382008-03-17 10:24:24 +100055#include <linux/dma-mapping.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070056#include <linux/mm.h>
57#include <linux/cdev.h>
Dave Airlie30e2fb12006-02-02 19:37:46 +110058#include <linux/mutex.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090059#include <linux/slab.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070060#if defined(__alpha__) || defined(__powerpc__)
Dave Airlieb5e89ed2005-09-25 14:28:13 +100061#include <asm/pgtable.h> /* For pte_wrprotect */
Linus Torvalds1da177e2005-04-16 15:20:36 -070062#endif
63#include <asm/io.h>
64#include <asm/mman.h>
65#include <asm/uaccess.h>
66#ifdef CONFIG_MTRR
67#include <asm/mtrr.h>
68#endif
69#if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
70#include <linux/types.h>
71#include <linux/agp_backend.h>
72#endif
73#include <linux/workqueue.h>
74#include <linux/poll.h>
75#include <asm/pgalloc.h>
76#include "drm.h"
77
Dave Airlie62968142007-07-17 10:46:52 +100078#include <linux/idr.h>
79
Linus Torvalds1da177e2005-04-16 15:20:36 -070080#define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE)))
81#define __OS_HAS_MTRR (defined(CONFIG_MTRR))
82
Eric Anholtc153f452007-09-03 12:06:45 +100083struct drm_file;
84struct drm_device;
85
Linus Torvalds1da177e2005-04-16 15:20:36 -070086#include "drm_os_linux.h"
Thomas Hellstrom3a1bd922006-08-07 21:30:28 +100087#include "drm_hashtab.h"
Jerome Glisse249d6042009-04-08 17:11:16 +020088#include "drm_mm.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070089
yakui_zhao4fefcb22009-06-02 14:09:47 +080090#define DRM_UT_CORE 0x01
91#define DRM_UT_DRIVER 0x02
92#define DRM_UT_KMS 0x04
Zhao Yakui87fdff82009-07-20 13:48:06 +080093/*
94 * Three debug levels are defined.
95 * drm_core, drm_driver, drm_kms
96 * drm_core level can be used in the generic drm code. For example:
97 * drm_ioctl, drm_mm, drm_memory
98 * The macro definiton of DRM_DEBUG is used.
99 * DRM_DEBUG(fmt, args...)
100 * The debug info by using the DRM_DEBUG can be obtained by adding
101 * the boot option of "drm.debug=1".
102 *
103 * drm_driver level can be used in the specific drm driver. It is used
104 * to add the debug info related with the drm driver. For example:
105 * i915_drv, i915_dma, i915_gem, radeon_drv,
106 * The macro definition of DRM_DEBUG_DRIVER can be used.
107 * DRM_DEBUG_DRIVER(fmt, args...)
108 * The debug info by using the DRM_DEBUG_DRIVER can be obtained by
109 * adding the boot option of "drm.debug=0x02"
110 *
111 * drm_kms level can be used in the KMS code related with specific drm driver.
112 * It is used to add the debug info related with KMS mode. For example:
113 * the connector/crtc ,
114 * The macro definition of DRM_DEBUG_KMS can be used.
115 * DRM_DEBUG_KMS(fmt, args...)
116 * The debug info by using the DRM_DEBUG_KMS can be obtained by
117 * adding the boot option of "drm.debug=0x04"
118 *
119 * If we add the boot option of "drm.debug=0x06", we can get the debug info by
120 * using the DRM_DEBUG_KMS and DRM_DEBUG_DRIVER.
121 * If we add the boot option of "drm.debug=0x05", we can get the debug info by
122 * using the DRM_DEBUG_KMS and DRM_DEBUG.
123 */
yakui_zhao4fefcb22009-06-02 14:09:47 +0800124
125extern void drm_ut_debug_printk(unsigned int request_level,
126 const char *prefix,
127 const char *function_name,
128 const char *format, ...);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700129/***********************************************************************/
130/** \name DRM template customization defaults */
131/*@{*/
132
133/* driver capabilities and requirements mask */
134#define DRIVER_USE_AGP 0x1
135#define DRIVER_REQUIRE_AGP 0x2
136#define DRIVER_USE_MTRR 0x4
137#define DRIVER_PCI_DMA 0x8
138#define DRIVER_SG 0x10
139#define DRIVER_HAVE_DMA 0x20
140#define DRIVER_HAVE_IRQ 0x40
141#define DRIVER_IRQ_SHARED 0x80
Dave Airlieaf6061a2008-05-07 12:15:39 +1000142#define DRIVER_IRQ_VBL 0x100
Linus Torvalds1da177e2005-04-16 15:20:36 -0700143#define DRIVER_DMA_QUEUE 0x200
Dave Airlieb84397d62005-07-10 14:46:12 +1000144#define DRIVER_FB_DMA 0x400
Dave Airlieaf6061a2008-05-07 12:15:39 +1000145#define DRIVER_IRQ_VBL2 0x800
Eric Anholt673a3942008-07-30 12:06:12 -0700146#define DRIVER_GEM 0x1000
Dave Airlief453ba02008-11-07 14:05:41 -0800147#define DRIVER_MODESET 0x2000
Jordan Crousedcdb1672010-05-27 13:40:25 -0600148#define DRIVER_USE_PLATFORM_DEVICE 0x4000
Linus Torvalds1da177e2005-04-16 15:20:36 -0700149
150/***********************************************************************/
151/** \name Begin the DRM... */
152/*@{*/
153
154#define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then
155 also include looping detection. */
156
Thomas Hellstrom8669cbc2006-08-07 22:22:10 +1000157#define DRM_MAGIC_HASH_ORDER 4 /**< Size of key hash table. Must be power of 2. */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700158#define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */
159#define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */
160#define DRM_LOOPING_LIMIT 5000000
Linus Torvalds1da177e2005-04-16 15:20:36 -0700161#define DRM_TIME_SLICE (HZ/20) /**< Time slice for GLXContexts */
162#define DRM_LOCK_SLICE 1 /**< Time slice for lock, in jiffies */
163
164#define DRM_FLAG_DEBUG 0x01
165
Linus Torvalds1da177e2005-04-16 15:20:36 -0700166#define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
Thomas Hellstrom8d153f72006-08-07 22:36:47 +1000167#define DRM_MAP_HASH_OFFSET 0x10000000
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000169/*@}*/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700170
171/***********************************************************************/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700172/** \name Macros to make printk easier */
173/*@{*/
174
175/**
176 * Error output.
177 *
178 * \param fmt printf() like format string.
179 * \param arg arguments
180 */
181#define DRM_ERROR(fmt, arg...) \
Harvey Harrisonbf9d8922008-04-30 00:55:10 -0700182 printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* " fmt , __func__ , ##arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700183
184/**
185 * Memory error output.
186 *
187 * \param area memory area where the error occurred.
188 * \param fmt printf() like format string.
189 * \param arg arguments
190 */
191#define DRM_MEM_ERROR(area, fmt, arg...) \
Harvey Harrisonbf9d8922008-04-30 00:55:10 -0700192 printk(KERN_ERR "[" DRM_NAME ":%s:%s] *ERROR* " fmt , __func__, \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700193 drm_mem_stats[area].name , ##arg)
194
195#define DRM_INFO(fmt, arg...) printk(KERN_INFO "[" DRM_NAME "] " fmt , ##arg)
196
197/**
198 * Debug output.
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000199 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700200 * \param fmt printf() like format string.
201 * \param arg arguments
202 */
203#if DRM_DEBUG_CODE
yakui_zhao4fefcb22009-06-02 14:09:47 +0800204#define DRM_DEBUG(fmt, args...) \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700205 do { \
yakui_zhao4fefcb22009-06-02 14:09:47 +0800206 drm_ut_debug_printk(DRM_UT_CORE, DRM_NAME, \
207 __func__, fmt, ##args); \
208 } while (0)
209
Zhao Yakui8a4c47f2009-07-20 13:48:04 +0800210#define DRM_DEBUG_DRIVER(fmt, args...) \
yakui_zhao4fefcb22009-06-02 14:09:47 +0800211 do { \
Zhao Yakui8a4c47f2009-07-20 13:48:04 +0800212 drm_ut_debug_printk(DRM_UT_DRIVER, DRM_NAME, \
yakui_zhao4fefcb22009-06-02 14:09:47 +0800213 __func__, fmt, ##args); \
214 } while (0)
Zhao Yakui8a4c47f2009-07-20 13:48:04 +0800215#define DRM_DEBUG_KMS(fmt, args...) \
yakui_zhao4fefcb22009-06-02 14:09:47 +0800216 do { \
Zhao Yakui8a4c47f2009-07-20 13:48:04 +0800217 drm_ut_debug_printk(DRM_UT_KMS, DRM_NAME, \
yakui_zhao4fefcb22009-06-02 14:09:47 +0800218 __func__, fmt, ##args); \
219 } while (0)
yakui_zhao4fefcb22009-06-02 14:09:47 +0800220#define DRM_LOG(fmt, args...) \
221 do { \
222 drm_ut_debug_printk(DRM_UT_CORE, NULL, \
223 NULL, fmt, ##args); \
224 } while (0)
225#define DRM_LOG_KMS(fmt, args...) \
226 do { \
227 drm_ut_debug_printk(DRM_UT_KMS, NULL, \
228 NULL, fmt, ##args); \
229 } while (0)
230#define DRM_LOG_MODE(fmt, args...) \
231 do { \
232 drm_ut_debug_printk(DRM_UT_MODE, NULL, \
233 NULL, fmt, ##args); \
234 } while (0)
235#define DRM_LOG_DRIVER(fmt, args...) \
236 do { \
237 drm_ut_debug_printk(DRM_UT_DRIVER, NULL, \
238 NULL, fmt, ##args); \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700239 } while (0)
240#else
Zhao Yakui8a4c47f2009-07-20 13:48:04 +0800241#define DRM_DEBUG_DRIVER(fmt, args...) do { } while (0)
242#define DRM_DEBUG_KMS(fmt, args...) do { } while (0)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700243#define DRM_DEBUG(fmt, arg...) do { } while (0)
yakui_zhao4fefcb22009-06-02 14:09:47 +0800244#define DRM_LOG(fmt, arg...) do { } while (0)
245#define DRM_LOG_KMS(fmt, args...) do { } while (0)
246#define DRM_LOG_MODE(fmt, arg...) do { } while (0)
247#define DRM_LOG_DRIVER(fmt, arg...) do { } while (0)
248
Linus Torvalds1da177e2005-04-16 15:20:36 -0700249#endif
250
Linus Torvalds1da177e2005-04-16 15:20:36 -0700251/*@}*/
252
Linus Torvalds1da177e2005-04-16 15:20:36 -0700253/***********************************************************************/
254/** \name Internal types and structures */
255/*@{*/
256
Dave Airlie99a26572005-09-25 13:25:41 +1000257#define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700258
259#define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
260#define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700261
262#define DRM_IF_VERSION(maj, min) (maj << 16 | min)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700263
264/**
265 * Test that the hardware lock is held by the caller, returning otherwise.
266 *
267 * \param dev DRM device.
268 * \param filp file pointer of the caller.
269 */
Roel Kluindcae3622009-06-10 12:43:48 -0700270#define LOCK_TEST_WITH_RETURN( dev, _file_priv ) \
271do { \
272 if (!_DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock) || \
273 _file_priv->master->lock.file_priv != _file_priv) { \
Eric Anholtc153f452007-09-03 12:06:45 +1000274 DRM_ERROR( "%s called without lock held, held %d owner %p %p\n",\
Roel Kluindcae3622009-06-10 12:43:48 -0700275 __func__, _DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock),\
276 _file_priv->master->lock.file_priv, _file_priv); \
277 return -EINVAL; \
278 } \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700279} while (0)
280
281/**
Linus Torvalds1da177e2005-04-16 15:20:36 -0700282 * Ioctl function type.
283 *
284 * \param inode device inode.
Eric Anholt6c340ea2007-08-25 20:23:09 +1000285 * \param file_priv DRM file private pointer.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700286 * \param cmd command.
287 * \param arg argument.
288 */
Eric Anholtc153f452007-09-03 12:06:45 +1000289typedef int drm_ioctl_t(struct drm_device *dev, void *data,
290 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700291
Dave Airlie9a186642005-06-23 21:29:18 +1000292typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
293 unsigned long arg);
294
Kristian Høgsberg1a959162009-12-02 12:13:48 -0500295#define DRM_IOCTL_NR(n) _IOC_NR(n)
296#define DRM_MAJOR 226
297
Dave Airliea7a2cc32006-01-02 13:54:04 +1100298#define DRM_AUTH 0x1
299#define DRM_MASTER 0x2
300#define DRM_ROOT_ONLY 0x4
Dave Airlief453ba02008-11-07 14:05:41 -0800301#define DRM_CONTROL_ALLOW 0x8
Arnd Bergmanned8b6702009-12-16 22:17:09 +0000302#define DRM_UNLOCKED 0x10
Dave Airliea7a2cc32006-01-02 13:54:04 +1100303
Eric Anholtc153f452007-09-03 12:06:45 +1000304struct drm_ioctl_desc {
305 unsigned int cmd;
Dave Airliea7a2cc32006-01-02 13:54:04 +1100306 int flags;
Richard Kennedyc972d752009-03-18 17:26:44 +0000307 drm_ioctl_t *func;
Dave Airlie1b2f1482010-08-14 20:20:34 +1000308 unsigned int cmd_drv;
Eric Anholtc153f452007-09-03 12:06:45 +1000309};
310
311/**
312 * Creates a driver or general drm_ioctl_desc array entry for the given
313 * ioctl, for use by drm_ioctl().
314 */
Dave Airlie1b2f1482010-08-14 20:20:34 +1000315
316#define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \
317 [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700318
Dave Airlie8fc2fdf2007-07-11 16:21:47 +1000319struct drm_magic_entry {
Thomas Hellstrom8669cbc2006-08-07 22:22:10 +1000320 struct list_head head;
Dave Airliee0be4282007-07-12 10:26:44 +1000321 struct drm_hash_item hash_item;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000322 struct drm_file *priv;
Dave Airlie8fc2fdf2007-07-11 16:21:47 +1000323};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700324
Dave Airlie8fc2fdf2007-07-11 16:21:47 +1000325struct drm_vma_entry {
Dave Airliebd1b3312007-05-26 05:01:51 +1000326 struct list_head head;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700327 struct vm_area_struct *vma;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000328 pid_t pid;
Dave Airlie8fc2fdf2007-07-11 16:21:47 +1000329};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700330
331/**
332 * DMA buffer.
333 */
Dave Airlie056219e2007-07-11 16:17:42 +1000334struct drm_buf {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000335 int idx; /**< Index into master buflist */
336 int total; /**< Buffer size */
337 int order; /**< log-base-2(total) */
338 int used; /**< Amount of buffer in use (for DMA) */
339 unsigned long offset; /**< Byte offset (used internally) */
340 void *address; /**< Address of buffer */
341 unsigned long bus_address; /**< Bus address of buffer */
342 struct drm_buf *next; /**< Kernel-only: used for free list */
343 __volatile__ int waiting; /**< On kernel DMA queue */
344 __volatile__ int pending; /**< On hardware DMA queue */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700345 wait_queue_head_t dma_wait; /**< Processes waiting */
Eric Anholt6c340ea2007-08-25 20:23:09 +1000346 struct drm_file *file_priv; /**< Private of holding file descr */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000347 int context; /**< Kernel queue for this buffer */
348 int while_locked; /**< Dispatch this buffer while locked */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700349 enum {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000350 DRM_LIST_NONE = 0,
351 DRM_LIST_FREE = 1,
352 DRM_LIST_WAIT = 2,
353 DRM_LIST_PEND = 3,
354 DRM_LIST_PRIO = 4,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700355 DRM_LIST_RECLAIM = 5
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000356 } list; /**< Which list we're on */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700357
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000358 int dev_priv_size; /**< Size of buffer private storage */
359 void *dev_private; /**< Per-buffer private storage */
Dave Airlie056219e2007-07-11 16:17:42 +1000360};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700361
Linus Torvalds1da177e2005-04-16 15:20:36 -0700362/** bufs is one longer than it has to be */
Dave Airliecdd55a22007-07-11 16:32:08 +1000363struct drm_waitlist {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000364 int count; /**< Number of possible buffers */
Dave Airlie056219e2007-07-11 16:17:42 +1000365 struct drm_buf **bufs; /**< List of pointers to buffers */
366 struct drm_buf **rp; /**< Read pointer */
367 struct drm_buf **wp; /**< Write pointer */
368 struct drm_buf **end; /**< End pointer */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000369 spinlock_t read_lock;
370 spinlock_t write_lock;
Dave Airliecdd55a22007-07-11 16:32:08 +1000371};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700372
Dave Airliecdd55a22007-07-11 16:32:08 +1000373struct drm_freelist {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000374 int initialized; /**< Freelist in use */
375 atomic_t count; /**< Number of free buffers */
Dave Airlie056219e2007-07-11 16:17:42 +1000376 struct drm_buf *next; /**< End pointer */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700377
378 wait_queue_head_t waiting; /**< Processes waiting on free bufs */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000379 int low_mark; /**< Low water mark */
380 int high_mark; /**< High water mark */
381 atomic_t wfh; /**< If waiting for high mark */
382 spinlock_t lock;
Dave Airliecdd55a22007-07-11 16:32:08 +1000383};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700384
Dave Airlieddf19b92006-03-19 18:56:12 +1100385typedef struct drm_dma_handle {
386 dma_addr_t busaddr;
387 void *vaddr;
388 size_t size;
389} drm_dma_handle_t;
390
Linus Torvalds1da177e2005-04-16 15:20:36 -0700391/**
392 * Buffer entry. There is one of this for each buffer size order.
393 */
Dave Airliecdd55a22007-07-11 16:32:08 +1000394struct drm_buf_entry {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000395 int buf_size; /**< size */
396 int buf_count; /**< number of buffers */
Dave Airlie056219e2007-07-11 16:17:42 +1000397 struct drm_buf *buflist; /**< buffer list */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000398 int seg_count;
399 int page_order;
Dave Airliecdd55a22007-07-11 16:32:08 +1000400 struct drm_dma_handle **seglist;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700401
Dave Airliecdd55a22007-07-11 16:32:08 +1000402 struct drm_freelist freelist;
403};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700404
Kristian Høgsbergc9a9c5e2009-09-12 04:33:34 +1000405/* Event queued up for userspace to read */
406struct drm_pending_event {
407 struct drm_event *event;
408 struct list_head link;
409 struct drm_file *file_priv;
Jesse Barnesb9c2c9a2010-07-01 16:48:09 -0700410 pid_t pid; /* pid of requester, no guarantee it's valid by the time
411 we deliver the event, for tracing only */
Kristian Høgsbergc9a9c5e2009-09-12 04:33:34 +1000412 void (*destroy)(struct drm_pending_event *event);
413};
414
Linus Torvalds1da177e2005-04-16 15:20:36 -0700415/** File private data */
Dave Airlie84b1fd12007-07-11 15:53:27 +1000416struct drm_file {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000417 int authenticated;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000418 pid_t pid;
419 uid_t uid;
420 drm_magic_t magic;
421 unsigned long ioctl_count;
Dave Airliebd1b3312007-05-26 05:01:51 +1000422 struct list_head lhead;
Dave Airlie2c14f282008-04-21 16:47:32 +1000423 struct drm_minor *minor;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000424 unsigned long lock_count;
Dave Airlie7c1c2872008-11-28 14:22:24 +1000425
Eric Anholt673a3942008-07-30 12:06:12 -0700426 /** Mapping of mm object handles to object pointers. */
427 struct idr object_idr;
428 /** Lock for synchronization of access to object_idr. */
429 spinlock_t table_lock;
Dave Airlie7c1c2872008-11-28 14:22:24 +1000430
Eric Anholt6c340ea2007-08-25 20:23:09 +1000431 struct file *filp;
Dave Airlie8562b3f2007-11-05 12:37:41 +1000432 void *driver_priv;
Dave Airlie7c1c2872008-11-28 14:22:24 +1000433
434 int is_master; /* this file private is a master for a minor */
435 struct drm_master *master; /* master this node is currently associated with
436 N.B. not always minor->master */
Dave Airlief453ba02008-11-07 14:05:41 -0800437 struct list_head fbs;
Kristian Høgsbergc9a9c5e2009-09-12 04:33:34 +1000438
439 wait_queue_head_t event_wait;
440 struct list_head event_list;
441 int event_space;
Dave Airlie84b1fd12007-07-11 15:53:27 +1000442};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700443
444/** Wait queue */
Dave Airliecdd55a22007-07-11 16:32:08 +1000445struct drm_queue {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000446 atomic_t use_count; /**< Outstanding uses (+1) */
447 atomic_t finalization; /**< Finalization in progress */
448 atomic_t block_count; /**< Count of processes waiting */
449 atomic_t block_read; /**< Queue blocked for reads */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700450 wait_queue_head_t read_queue; /**< Processes waiting on block_read */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000451 atomic_t block_write; /**< Queue blocked for writes */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700452 wait_queue_head_t write_queue; /**< Processes waiting on block_write */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000453 atomic_t total_queued; /**< Total queued statistic */
454 atomic_t total_flushed; /**< Total flushes statistic */
455 atomic_t total_locks; /**< Total locks statistics */
Dave Airliec60ce622007-07-11 15:27:12 +1000456 enum drm_ctx_flags flags; /**< Context preserving and 2D-only */
Dave Airliecdd55a22007-07-11 16:32:08 +1000457 struct drm_waitlist waitlist; /**< Pending buffers */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700458 wait_queue_head_t flush_queue; /**< Processes waiting until flush */
Dave Airliecdd55a22007-07-11 16:32:08 +1000459};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700460
461/**
462 * Lock data.
463 */
Dave Airlie55910512007-07-11 16:53:40 +1000464struct drm_lock_data {
Dave Airliec60ce622007-07-11 15:27:12 +1000465 struct drm_hw_lock *hw_lock; /**< Hardware lock */
Dave Airlie8562b3f2007-11-05 12:37:41 +1000466 /** Private of lock holder's file (NULL=kernel) */
467 struct drm_file *file_priv;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700468 wait_queue_head_t lock_queue; /**< Queue of blocked processes */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000469 unsigned long lock_time; /**< Time of last lock in jiffies */
Thomas Hellstrom040ac322007-03-23 13:28:33 +1100470 spinlock_t spinlock;
471 uint32_t kernel_waiters;
472 uint32_t user_waiters;
473 int idle_has_lock;
Dave Airlie55910512007-07-11 16:53:40 +1000474};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700475
476/**
477 * DMA data.
478 */
Dave Airliecdd55a22007-07-11 16:32:08 +1000479struct drm_device_dma {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700480
Dave Airliecdd55a22007-07-11 16:32:08 +1000481 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000482 int buf_count; /**< total number of buffers */
Dave Airlie056219e2007-07-11 16:17:42 +1000483 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000484 int seg_count;
485 int page_count; /**< number of pages */
486 unsigned long *pagelist; /**< page list */
487 unsigned long byte_count;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700488 enum {
489 _DRM_DMA_USE_AGP = 0x01,
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000490 _DRM_DMA_USE_SG = 0x02,
George Sapountzis3417f332006-10-24 12:03:04 -0700491 _DRM_DMA_USE_FB = 0x04,
492 _DRM_DMA_USE_PCI_RO = 0x08
Linus Torvalds1da177e2005-04-16 15:20:36 -0700493 } flags;
494
Dave Airliecdd55a22007-07-11 16:32:08 +1000495};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700496
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000497/**
Linus Torvalds1da177e2005-04-16 15:20:36 -0700498 * AGP memory entry. Stored as a doubly linked list.
499 */
Dave Airlie55910512007-07-11 16:53:40 +1000500struct drm_agp_mem {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000501 unsigned long handle; /**< handle */
502 DRM_AGP_MEM *memory;
503 unsigned long bound; /**< address */
504 int pages;
Dave Airliebd1b3312007-05-26 05:01:51 +1000505 struct list_head head;
Dave Airlie55910512007-07-11 16:53:40 +1000506};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700507
508/**
509 * AGP data.
510 *
511 * \sa drm_agp_init() and drm_device::agp.
512 */
Dave Airlie55910512007-07-11 16:53:40 +1000513struct drm_agp_head {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000514 DRM_AGP_KERN agp_info; /**< AGP device information */
Dave Airliebd1b3312007-05-26 05:01:51 +1000515 struct list_head memory;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000516 unsigned long mode; /**< AGP mode */
517 struct agp_bridge_data *bridge;
518 int enabled; /**< whether the AGP bus as been enabled */
519 int acquired; /**< whether the AGP device has been acquired */
520 unsigned long base;
521 int agp_mtrr;
522 int cant_use_aperture;
523 unsigned long page_mask;
Dave Airlie55910512007-07-11 16:53:40 +1000524};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700525
526/**
527 * Scatter-gather memory.
528 */
Dave Airlie55910512007-07-11 16:53:40 +1000529struct drm_sg_mem {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000530 unsigned long handle;
531 void *virtual;
532 int pages;
533 struct page **pagelist;
534 dma_addr_t *busaddr;
Dave Airlie55910512007-07-11 16:53:40 +1000535};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700536
Dave Airlie55910512007-07-11 16:53:40 +1000537struct drm_sigdata {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000538 int context;
Dave Airliec60ce622007-07-11 15:27:12 +1000539 struct drm_hw_lock *lock;
Dave Airlie55910512007-07-11 16:53:40 +1000540};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700541
Dave Airlie8562b3f2007-11-05 12:37:41 +1000542
Linus Torvalds1da177e2005-04-16 15:20:36 -0700543/**
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +1100544 * Kernel side of a mapping
545 */
546struct drm_local_map {
Benjamin Herrenschmidt41c2e752009-02-02 16:55:47 +1100547 resource_size_t offset; /**< Requested physical address (0 for SAREA)*/
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +1100548 unsigned long size; /**< Requested physical size (bytes) */
549 enum drm_map_type type; /**< Type of memory to map */
550 enum drm_map_flags flags; /**< Flags */
551 void *handle; /**< User-space: "Handle" to pass to mmap() */
552 /**< Kernel-space: kernel-virtual address */
553 int mtrr; /**< MTRR slot used */
554};
555
556typedef struct drm_local_map drm_local_map_t;
557
558/**
Linus Torvalds1da177e2005-04-16 15:20:36 -0700559 * Mappings list
560 */
Dave Airlie55910512007-07-11 16:53:40 +1000561struct drm_map_list {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000562 struct list_head head; /**< list head */
Dave Airliee0be4282007-07-12 10:26:44 +1000563 struct drm_hash_item hash;
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +1100564 struct drm_local_map *map; /**< mapping */
Dave Airlie8562b3f2007-11-05 12:37:41 +1000565 uint64_t user_token;
Dave Airlie7c1c2872008-11-28 14:22:24 +1000566 struct drm_master *master;
Jesse Barnesa2c0a972008-11-05 10:31:53 -0800567 struct drm_mm_node *file_offset_node; /**< fake offset */
Dave Airlie55910512007-07-11 16:53:40 +1000568};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700569
Linus Torvalds1da177e2005-04-16 15:20:36 -0700570/**
571 * Context handle list
572 */
Dave Airlie55910512007-07-11 16:53:40 +1000573struct drm_ctx_list {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000574 struct list_head head; /**< list head */
575 drm_context_t handle; /**< context handle */
Dave Airlie84b1fd12007-07-11 15:53:27 +1000576 struct drm_file *tag; /**< associated fd private data */
Dave Airlie55910512007-07-11 16:53:40 +1000577};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700578
Dave Airlieea98a922005-09-11 20:28:11 +1000579/* location of GART table */
580#define DRM_ATI_GART_MAIN 1
581#define DRM_ATI_GART_FB 2
582
Dave Airlief2b04cd2007-05-08 15:19:23 +1000583#define DRM_ATI_GART_PCI 1
584#define DRM_ATI_GART_PCIE 2
585#define DRM_ATI_GART_IGP 3
586
Dave Airlie55910512007-07-11 16:53:40 +1000587struct drm_ati_pcigart_info {
Dave Airlieea98a922005-09-11 20:28:11 +1000588 int gart_table_location;
Dave Airlief2b04cd2007-05-08 15:19:23 +1000589 int gart_reg_if;
Dave Airlief26c4732006-01-02 17:18:39 +1100590 void *addr;
Dave Airlieea98a922005-09-11 20:28:11 +1000591 dma_addr_t bus_addr;
Dave Airlieb05c2382008-03-17 10:24:24 +1000592 dma_addr_t table_mask;
593 struct drm_dma_handle *table_handle;
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +1100594 struct drm_local_map mapping;
Dave Airlief2b04cd2007-05-08 15:19:23 +1000595 int table_size;
Dave Airlie55910512007-07-11 16:53:40 +1000596};
Dave Airlieea98a922005-09-11 20:28:11 +1000597
Linus Torvalds1da177e2005-04-16 15:20:36 -0700598/**
Jesse Barnesa2c0a972008-11-05 10:31:53 -0800599 * GEM specific mm private for tracking GEM objects
600 */
601struct drm_gem_mm {
602 struct drm_mm offset_manager; /**< Offset mgmt for buffer objects */
603 struct drm_open_hash offset_hash; /**< User token hash table for maps */
604};
605
606/**
Eric Anholt673a3942008-07-30 12:06:12 -0700607 * This structure defines the drm_mm memory object, which will be used by the
608 * DRM for its buffer objects.
609 */
610struct drm_gem_object {
611 /** Reference count of this object */
612 struct kref refcount;
613
614 /** Handle count of this object. Each handle also holds a reference */
Dave Airlie29d08b32010-09-27 16:17:17 +1000615 atomic_t handle_count; /* number of handles on this object */
Eric Anholt673a3942008-07-30 12:06:12 -0700616
617 /** Related drm device */
618 struct drm_device *dev;
619
620 /** File representing the shmem storage */
621 struct file *filp;
622
Jesse Barnesa2c0a972008-11-05 10:31:53 -0800623 /* Mapping info for this object */
624 struct drm_map_list map_list;
625
Eric Anholt673a3942008-07-30 12:06:12 -0700626 /**
627 * Size of the object, in bytes. Immutable over the object's
628 * lifetime.
629 */
630 size_t size;
631
632 /**
633 * Global name for this object, starts at 1. 0 means unnamed.
634 * Access is covered by the object_name_lock in the related drm_device
635 */
636 int name;
637
638 /**
639 * Memory domains. These monitor which caches contain read/write data
640 * related to the object. When transitioning from one set of domains
641 * to another, the driver is called to ensure that caches are suitably
642 * flushed and invalidated
643 */
644 uint32_t read_domains;
645 uint32_t write_domain;
646
647 /**
648 * While validating an exec operation, the
649 * new read/write domain values are computed here.
650 * They will be transferred to the above values
651 * at the point that any cache flushing occurs
652 */
653 uint32_t pending_read_domains;
654 uint32_t pending_write_domain;
655
656 void *driver_private;
657};
658
Dave Airlief453ba02008-11-07 14:05:41 -0800659#include "drm_crtc.h"
660
Dave Airlie7c1c2872008-11-28 14:22:24 +1000661/* per-master structure */
662struct drm_master {
663
664 struct kref refcount; /* refcount for this master */
665
666 struct list_head head; /**< each minor contains a list of masters */
667 struct drm_minor *minor; /**< link back to minor we are a master for */
668
669 char *unique; /**< Unique identifier: e.g., busid */
670 int unique_len; /**< Length of unique field */
Vegard Nossum1147c9c2008-12-02 13:38:47 +1000671 int unique_size; /**< amount allocated */
Dave Airlie7c1c2872008-11-28 14:22:24 +1000672
673 int blocked; /**< Blocked due to VC switch? */
674
675 /** \name Authentication */
676 /*@{ */
677 struct drm_open_hash magiclist;
678 struct list_head magicfree;
679 /*@} */
680
681 struct drm_lock_data lock; /**< Information on hardware lock */
682
683 void *driver_priv; /**< Private structure for driver to use */
684};
685
Eric Anholt673a3942008-07-30 12:06:12 -0700686/**
Linus Torvalds1da177e2005-04-16 15:20:36 -0700687 * DRM driver structure. This structure represent the common code for
688 * a family of cards. There will one drm_device for each card present
689 * in this family
690 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700691struct drm_driver {
Dave Airlie22eae942005-11-10 22:16:34 +1100692 int (*load) (struct drm_device *, unsigned long flags);
693 int (*firstopen) (struct drm_device *);
Dave Airlie84b1fd12007-07-11 15:53:27 +1000694 int (*open) (struct drm_device *, struct drm_file *);
Eric Anholt6c340ea2007-08-25 20:23:09 +1000695 void (*preclose) (struct drm_device *, struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +1000696 void (*postclose) (struct drm_device *, struct drm_file *);
Dave Airlie22eae942005-11-10 22:16:34 +1100697 void (*lastclose) (struct drm_device *);
698 int (*unload) (struct drm_device *);
Dave Airlieb932ccb2008-02-20 10:02:20 +1000699 int (*suspend) (struct drm_device *, pm_message_t state);
Jesse Barnese8b962b2007-11-22 14:02:38 +1000700 int (*resume) (struct drm_device *);
Eric Anholtc153f452007-09-03 12:06:45 +1000701 int (*dma_ioctl) (struct drm_device *dev, void *data, struct drm_file *file_priv);
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000702 int (*dma_quiescent) (struct drm_device *);
Dave Airlie84b1fd12007-07-11 15:53:27 +1000703 int (*context_dtor) (struct drm_device *dev, int context);
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000704
Dave Airliecda17382005-07-10 17:31:26 +1000705 /**
Jesse Barnes0a3e67a2008-09-30 12:14:26 -0700706 * get_vblank_counter - get raw hardware vblank counter
707 * @dev: DRM device
708 * @crtc: counter to fetch
709 *
710 * Driver callback for fetching a raw hardware vblank counter
711 * for @crtc. If a device doesn't have a hardware counter, the
712 * driver can simply return the value of drm_vblank_count and
713 * make the enable_vblank() and disable_vblank() hooks into no-ops,
714 * leaving interrupts enabled at all times.
715 *
716 * Wraparound handling and loss of events due to modesetting is dealt
717 * with in the DRM core code.
718 *
719 * RETURNS
720 * Raw vblank counter value.
721 */
722 u32 (*get_vblank_counter) (struct drm_device *dev, int crtc);
723
724 /**
725 * enable_vblank - enable vblank interrupt events
726 * @dev: DRM device
727 * @crtc: which irq to enable
728 *
729 * Enable vblank interrupts for @crtc. If the device doesn't have
730 * a hardware vblank counter, this routine should be a no-op, since
731 * interrupts will have to stay on to keep the count accurate.
732 *
733 * RETURNS
734 * Zero on success, appropriate errno if the given @crtc's vblank
735 * interrupt cannot be enabled.
736 */
737 int (*enable_vblank) (struct drm_device *dev, int crtc);
738
739 /**
740 * disable_vblank - disable vblank interrupt events
741 * @dev: DRM device
742 * @crtc: which irq to enable
743 *
744 * Disable vblank interrupts for @crtc. If the device doesn't have
745 * a hardware vblank counter, this routine should be a no-op, since
746 * interrupts will have to stay on to keep the count accurate.
747 */
748 void (*disable_vblank) (struct drm_device *dev, int crtc);
749
750 /**
Dave Airliecda17382005-07-10 17:31:26 +1000751 * Called by \c drm_device_is_agp. Typically used to determine if a
752 * card is really attached to AGP or not.
753 *
754 * \param dev DRM device handle
755 *
756 * \returns
757 * One of three values is returned depending on whether or not the
758 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
759 * (return of 1), or may or may not be AGP (return of 2).
760 */
Dave Airlie84b1fd12007-07-11 15:53:27 +1000761 int (*device_is_agp) (struct drm_device *dev);
Dave Airliecda17382005-07-10 17:31:26 +1000762
Linus Torvalds1da177e2005-04-16 15:20:36 -0700763 /* these have to be filled in */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000764
Dave Airlie22eae942005-11-10 22:16:34 +1100765 irqreturn_t(*irq_handler) (DRM_IRQ_ARGS);
Dave Airlie84b1fd12007-07-11 15:53:27 +1000766 void (*irq_preinstall) (struct drm_device *dev);
Jesse Barnes0a3e67a2008-09-30 12:14:26 -0700767 int (*irq_postinstall) (struct drm_device *dev);
Dave Airlie84b1fd12007-07-11 15:53:27 +1000768 void (*irq_uninstall) (struct drm_device *dev);
Eric Anholt6c340ea2007-08-25 20:23:09 +1000769 void (*reclaim_buffers) (struct drm_device *dev,
770 struct drm_file * file_priv);
Dave Airlied985c102006-01-02 21:32:48 +1100771 void (*reclaim_buffers_locked) (struct drm_device *dev,
Eric Anholt6c340ea2007-08-25 20:23:09 +1000772 struct drm_file *file_priv);
Thomas Hellstrom040ac322007-03-23 13:28:33 +1100773 void (*reclaim_buffers_idlelocked) (struct drm_device *dev,
Eric Anholt6c340ea2007-08-25 20:23:09 +1000774 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +1000775 void (*set_version) (struct drm_device *dev,
Dave Airliec60ce622007-07-11 15:27:12 +1000776 struct drm_set_version *sv);
Dave Airlie22eae942005-11-10 22:16:34 +1100777
Dave Airlie7c1c2872008-11-28 14:22:24 +1000778 /* Master routines */
779 int (*master_create)(struct drm_device *dev, struct drm_master *master);
780 void (*master_destroy)(struct drm_device *dev, struct drm_master *master);
Thomas Hellstrom862302f2009-12-02 18:15:25 +0000781 /**
782 * master_set is called whenever the minor master is set.
783 * master_drop is called whenever the minor master is dropped.
784 */
785
786 int (*master_set)(struct drm_device *dev, struct drm_file *file_priv,
787 bool from_open);
788 void (*master_drop)(struct drm_device *dev, struct drm_file *file_priv,
789 bool from_release);
Dave Airlie7c1c2872008-11-28 14:22:24 +1000790
Ben Gamari955b12d2009-02-17 20:08:49 -0500791 int (*debugfs_init)(struct drm_minor *minor);
792 void (*debugfs_cleanup)(struct drm_minor *minor);
Eric Anholt673a3942008-07-30 12:06:12 -0700793
794 /**
795 * Driver-specific constructor for drm_gem_objects, to set up
796 * obj->driver_private.
797 *
798 * Returns 0 on success.
799 */
800 int (*gem_init_object) (struct drm_gem_object *obj);
801 void (*gem_free_object) (struct drm_gem_object *obj);
802
Dave Airlie28d52042009-09-21 14:33:58 +1000803 /* vga arb irq handler */
804 void (*vgaarb_irq)(struct drm_device *dev, bool state);
805
Jesse Barnesa2c0a972008-11-05 10:31:53 -0800806 /* Driver private ops for this object */
807 struct vm_operations_struct *gem_vm_ops;
808
Dave Airlie22eae942005-11-10 22:16:34 +1100809 int major;
810 int minor;
811 int patchlevel;
812 char *name;
813 char *desc;
814 char *date;
815
Linus Torvalds1da177e2005-04-16 15:20:36 -0700816 u32 driver_features;
817 int dev_priv_size;
Eric Anholtc153f452007-09-03 12:06:45 +1000818 struct drm_ioctl_desc *ioctls;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700819 int num_ioctls;
820 struct file_operations fops;
821 struct pci_driver pci_driver;
Jordan Crousedcdb1672010-05-27 13:40:25 -0600822 struct platform_device *platform_device;
Dave Airliee7f7ab42008-11-28 13:43:47 +1000823 /* List of devices hanging off this driver */
824 struct list_head device_list;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700825};
826
Dave Airlie2c14f282008-04-21 16:47:32 +1000827#define DRM_MINOR_UNASSIGNED 0
828#define DRM_MINOR_LEGACY 1
Dave Airlief453ba02008-11-07 14:05:41 -0800829#define DRM_MINOR_CONTROL 2
830#define DRM_MINOR_RENDER 3
Dave Airlie2c14f282008-04-21 16:47:32 +1000831
Ben Gamari955b12d2009-02-17 20:08:49 -0500832
833/**
834 * debugfs node list. This structure represents a debugfs file to
835 * be created by the drm core
836 */
837struct drm_debugfs_list {
838 const char *name; /** file name */
839 int (*show)(struct seq_file*, void*); /** show callback */
840 u32 driver_features; /**< Required driver features for this entry */
841};
842
843/**
844 * debugfs node structure. This structure represents a debugfs file.
845 */
846struct drm_debugfs_node {
847 struct list_head list;
848 struct drm_minor *minor;
849 struct drm_debugfs_list *debugfs_ent;
850 struct dentry *dent;
851};
852
853/**
854 * Info file list entry. This structure represents a debugfs or proc file to
855 * be created by the drm core
856 */
857struct drm_info_list {
858 const char *name; /** file name */
859 int (*show)(struct seq_file*, void*); /** show callback */
860 u32 driver_features; /**< Required driver features for this entry */
861 void *data;
862};
863
864/**
865 * debugfs node structure. This structure represents a debugfs file.
866 */
867struct drm_info_node {
868 struct list_head list;
869 struct drm_minor *minor;
870 struct drm_info_list *info_ent;
871 struct dentry *dent;
872};
873
Linus Torvalds1da177e2005-04-16 15:20:36 -0700874/**
Dave Airlie2c14f282008-04-21 16:47:32 +1000875 * DRM minor structure. This structure represents a drm minor number.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700876 */
Dave Airlie2c14f282008-04-21 16:47:32 +1000877struct drm_minor {
878 int index; /**< Minor device number */
879 int type; /**< Control or render */
880 dev_t device; /**< Device number for mknod */
881 struct device kdev; /**< Linux device */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700882 struct drm_device *dev;
Ben Gamari955b12d2009-02-17 20:08:49 -0500883
884 struct proc_dir_entry *proc_root; /**< proc directory entry */
885 struct drm_info_node proc_nodes;
886 struct dentry *debugfs_root;
887 struct drm_info_node debugfs_nodes;
888
Dave Airlie7c1c2872008-11-28 14:22:24 +1000889 struct drm_master *master; /* currently active master for this node */
890 struct list_head master_list;
Dave Airlief453ba02008-11-07 14:05:41 -0800891 struct drm_mode_group mode_group;
Dave Airlie84b1fd12007-07-11 15:53:27 +1000892};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700893
Kristian Høgsbergc9a9c5e2009-09-12 04:33:34 +1000894struct drm_pending_vblank_event {
895 struct drm_pending_event base;
896 int pipe;
897 struct drm_event_vblank event;
898};
899
Linus Torvalds1da177e2005-04-16 15:20:36 -0700900/**
901 * DRM device structure. This structure represent a complete card that
902 * may contain multiple heads.
903 */
Dave Airlie84b1fd12007-07-11 15:53:27 +1000904struct drm_device {
Dave Airliee7f7ab42008-11-28 13:43:47 +1000905 struct list_head driver_item; /**< list of devices per driver */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000906 char *devname; /**< For /proc/interrupts */
907 int if_version; /**< Highest interface version set */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700908
Linus Torvalds1da177e2005-04-16 15:20:36 -0700909 /** \name Locks */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000910 /*@{ */
911 spinlock_t count_lock; /**< For inuse, drm_device::open_count, drm_device::buf_use */
Dave Airlie30e2fb12006-02-02 19:37:46 +1100912 struct mutex struct_mutex; /**< For others */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000913 /*@} */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700914
915 /** \name Usage Counters */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000916 /*@{ */
917 int open_count; /**< Outstanding files open */
918 atomic_t ioctl_count; /**< Outstanding IOCTLs pending */
919 atomic_t vma_count; /**< Outstanding vma areas open */
920 int buf_use; /**< Buffers in use -- cannot alloc */
921 atomic_t buf_alloc; /**< Buffer allocation in progress */
922 /*@} */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700923
924 /** \name Performance counters */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000925 /*@{ */
926 unsigned long counters;
Dave Airliec60ce622007-07-11 15:27:12 +1000927 enum drm_stat_type types[15];
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000928 atomic_t counts[15];
929 /*@} */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700930
Dave Airliebd1b3312007-05-26 05:01:51 +1000931 struct list_head filelist;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700932
933 /** \name Memory management */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000934 /*@{ */
Dave Airliebd1b3312007-05-26 05:01:51 +1000935 struct list_head maplist; /**< Linked list of regions */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000936 int map_count; /**< Number of mappable regions */
Dave Airliee0be4282007-07-12 10:26:44 +1000937 struct drm_open_hash map_hash; /**< User token hash table for maps */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700938
939 /** \name Context handle management */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000940 /*@{ */
Dave Airliebd1b3312007-05-26 05:01:51 +1000941 struct list_head ctxlist; /**< Linked list of context handles */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000942 int ctx_count; /**< Number of context handles */
Dave Airlie30e2fb12006-02-02 19:37:46 +1100943 struct mutex ctxlist_mutex; /**< For ctxlist */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700944
Dave Airlie62968142007-07-17 10:46:52 +1000945 struct idr ctx_idr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700946
Dave Airliebd1b3312007-05-26 05:01:51 +1000947 struct list_head vmalist; /**< List of vmas (for debugging) */
Dave Airlief453ba02008-11-07 14:05:41 -0800948
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000949 /*@} */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700950
951 /** \name DMA queues (contexts) */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000952 /*@{ */
953 int queue_count; /**< Number of active DMA queues */
954 int queue_reserved; /**< Number of reserved DMA queues */
955 int queue_slots; /**< Actual length of queuelist */
Dave Airliecdd55a22007-07-11 16:32:08 +1000956 struct drm_queue **queuelist; /**< Vector of pointers to DMA queues */
957 struct drm_device_dma *dma; /**< Optional pointer for DMA support */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000958 /*@} */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700959
960 /** \name Context support */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000961 /*@{ */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000962 int irq_enabled; /**< True if irq handler is enabled */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700963 __volatile__ long context_flag; /**< Context swapping flag */
964 __volatile__ long interrupt_flag; /**< Interruption handler flag */
965 __volatile__ long dma_flag; /**< DMA dispatch flag */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000966 wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */
967 int last_checked; /**< Last context checked for DMA */
968 int last_context; /**< Last current context */
969 unsigned long last_switch; /**< jiffies at last context switch */
970 /*@} */
971
972 struct work_struct work;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700973 /** \name VBLANK IRQ support */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000974 /*@{ */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700975
Jesse Barnes0a3e67a2008-09-30 12:14:26 -0700976 /*
977 * At load time, disabling the vblank interrupt won't be allowed since
978 * old clients may not call the modeset ioctl and therefore misbehave.
979 * Once the modeset ioctl *has* been called though, we can safely
980 * disable them when unused.
981 */
982 int vblank_disable_allowed;
983
984 wait_queue_head_t *vbl_queue; /**< VBLANK wait queue */
985 atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000986 spinlock_t vbl_lock;
Jesse Barnes0a3e67a2008-09-30 12:14:26 -0700987 atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */
988 u32 *last_vblank; /* protected by dev->vbl_lock, used */
989 /* for wraparound handling */
990 int *vblank_enabled; /* so we don't call enable more than
991 once per disable */
992 int *vblank_inmodeset; /* Display driver is setting mode */
Eric Anholtfede5c92008-12-19 17:23:38 -0800993 u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */
Jesse Barnes0a3e67a2008-09-30 12:14:26 -0700994 struct timer_list vblank_disable_timer;
995
996 u32 max_vblank_count; /**< size of vblank counter register */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700997
Kristian Høgsbergc9a9c5e2009-09-12 04:33:34 +1000998 /**
999 * List of events
1000 */
1001 struct list_head vblank_event_list;
1002 spinlock_t event_lock;
1003
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001004 /*@} */
1005 cycles_t ctx_start;
1006 cycles_t lck_start;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001007
Linus Torvalds1da177e2005-04-16 15:20:36 -07001008 struct fasync_struct *buf_async;/**< Processes waiting for SIGIO */
1009 wait_queue_head_t buf_readers; /**< Processes waiting to read */
1010 wait_queue_head_t buf_writers; /**< Processes waiting to ctx switch */
1011
Dave Airlie55910512007-07-11 16:53:40 +10001012 struct drm_agp_head *agp; /**< AGP data */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001013
Jordan Crousedcdb1672010-05-27 13:40:25 -06001014 struct device *dev; /**< Device structure */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001015 struct pci_dev *pdev; /**< PCI device structure */
Eric Anholt2f02cc32006-09-22 04:19:34 +10001016 int pci_vendor; /**< PCI vendor id */
1017 int pci_device; /**< PCI device id */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001018#ifdef __alpha__
Linus Torvalds1da177e2005-04-16 15:20:36 -07001019 struct pci_controller *hose;
1020#endif
Jordan Crousedcdb1672010-05-27 13:40:25 -06001021
1022 struct platform_device *platformdev; /**< Platform device struture */
1023
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
Dave Airlief453ba02008-11-07 14:05:41 -08001038 struct drm_mode_config mode_config; /**< Current mode config */
1039
Eric Anholt673a3942008-07-30 12:06:12 -07001040 /** \name GEM information */
1041 /*@{ */
1042 spinlock_t object_name_lock;
1043 struct idr object_name_idr;
Eric Anholt673a3942008-07-30 12:06:12 -07001044 uint32_t invalidate_domains; /* domains pending invalidation */
1045 uint32_t flush_domains; /* domains pending flush */
1046 /*@} */
1047
Dave Airlie84b1fd12007-07-11 15:53:27 +10001048};
Linus Torvalds1da177e2005-04-16 15:20:36 -07001049
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001050static __inline__ int drm_core_check_feature(struct drm_device *dev,
1051 int feature)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001052{
1053 return ((dev->driver->driver_features & feature) ? 1 : 0);
1054}
1055
Jordan Crousedcdb1672010-05-27 13:40:25 -06001056static inline int drm_dev_to_irq(struct drm_device *dev)
1057{
1058 if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE))
1059 return platform_get_irq(dev->platformdev, 0);
1060 else
1061 return dev->pdev->irq;
1062}
1063
Benjamin Herrenschmidtc17c2f82010-08-06 13:55:10 +10001064static inline int drm_get_pci_domain(struct drm_device *dev)
1065{
1066 if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE))
1067 return 0;
1068
1069#ifndef __alpha__
1070 /* For historical reasons, drm_get_pci_domain() is busticated
1071 * on most archs and has to remain so for userspace interface
1072 * < 1.4, except on alpha which was right from the beginning
1073 */
1074 if (dev->if_version < 0x10004)
1075 return 0;
1076#endif /* __alpha__ */
1077
1078 return pci_domain_nr(dev->pdev->bus);
1079}
Dave Airlie332296012006-08-07 20:23:42 +10001080
Linus Torvalds1da177e2005-04-16 15:20:36 -07001081#if __OS_HAS_AGP
1082static inline int drm_core_has_AGP(struct drm_device *dev)
1083{
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001084 return drm_core_check_feature(dev, DRIVER_USE_AGP);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001085}
1086#else
1087#define drm_core_has_AGP(dev) (0)
1088#endif
1089
1090#if __OS_HAS_MTRR
1091static inline int drm_core_has_MTRR(struct drm_device *dev)
1092{
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001093 return drm_core_check_feature(dev, DRIVER_USE_MTRR);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001094}
Dave Airlie269dc512006-01-02 16:23:01 +11001095
1096#define DRM_MTRR_WC MTRR_TYPE_WRCOMB
1097
1098static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
1099 unsigned int flags)
1100{
1101 return mtrr_add(offset, size, flags, 1);
1102}
1103
1104static inline int drm_mtrr_del(int handle, unsigned long offset,
1105 unsigned long size, unsigned int flags)
1106{
1107 return mtrr_del(handle, offset, size);
1108}
1109
Linus Torvalds1da177e2005-04-16 15:20:36 -07001110#else
1111#define drm_core_has_MTRR(dev) (0)
Dave Airlie9c7d4622006-01-12 20:44:30 +11001112
1113#define DRM_MTRR_WC 0
1114
1115static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
1116 unsigned int flags)
1117{
1118 return 0;
1119}
1120
1121static inline int drm_mtrr_del(int handle, unsigned long offset,
1122 unsigned long size, unsigned int flags)
1123{
1124 return 0;
1125}
Linus Torvalds1da177e2005-04-16 15:20:36 -07001126#endif
1127
1128/******************************************************************/
1129/** \name Internal function definitions */
1130/*@{*/
1131
Linus Torvalds1da177e2005-04-16 15:20:36 -07001132 /* Driver support (drm_drv.h) */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001133extern int drm_init(struct drm_driver *driver);
1134extern void drm_exit(struct drm_driver *driver);
Arnd Bergmanned8b6702009-12-16 22:17:09 +00001135extern long drm_ioctl(struct file *filp,
1136 unsigned int cmd, unsigned long arg);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001137extern long drm_compat_ioctl(struct file *filp,
1138 unsigned int cmd, unsigned long arg);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001139extern int drm_lastclose(struct drm_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001140
1141 /* Device support (drm_fops.h) */
Arnd Bergmann58374712010-07-10 23:51:39 +02001142extern struct mutex drm_global_mutex;
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001143extern int drm_open(struct inode *inode, struct file *filp);
1144extern int drm_stub_open(struct inode *inode, struct file *filp);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001145extern int drm_fasync(int fd, struct file *filp, int on);
Kristian Høgsbergc9a9c5e2009-09-12 04:33:34 +10001146extern ssize_t drm_read(struct file *filp, char __user *buffer,
1147 size_t count, loff_t *offset);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001148extern int drm_release(struct inode *inode, struct file *filp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001149
1150 /* Mapping support (drm_vm.h) */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001151extern int drm_mmap(struct file *filp, struct vm_area_struct *vma);
Jesse Barnesa2c0a972008-11-05 10:31:53 -08001152extern int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma);
1153extern void drm_vm_open_locked(struct vm_area_struct *vma);
Chris Wilson31dfbc92010-09-27 21:28:30 +01001154extern void drm_vm_close_locked(struct vm_area_struct *vma);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001155extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001156
1157 /* Memory management support (drm_memory.h) */
1158#include "drm_memory.h"
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001159extern void drm_mem_init(void);
1160extern int drm_mem_info(char *buf, char **start, off_t offset,
1161 int request, int *eof, void *data);
1162extern void *drm_realloc(void *oldpt, size_t oldsize, size_t size, int area);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001163
Daniel Vetter690bb512010-08-23 22:53:35 +02001164extern void drm_free_agp(DRM_AGP_MEM * handle, int pages);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001165extern 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
Linus Torvalds1da177e2005-04-16 15:20:36 -07001216 /* Authentication IOCTL support (drm_auth.h) */
Eric Anholtc153f452007-09-03 12:06:45 +10001217extern int drm_getmagic(struct drm_device *dev, void *data,
1218 struct drm_file *file_priv);
1219extern int drm_authmagic(struct drm_device *dev, void *data,
1220 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001221
Eric Anholt673a3942008-07-30 12:06:12 -07001222/* Cache management (drm_cache.c) */
1223void drm_clflush_pages(struct page *pages[], unsigned long num_pages);
1224
Linus Torvalds1da177e2005-04-16 15:20:36 -07001225 /* Locking IOCTL support (drm_lock.h) */
Eric Anholtc153f452007-09-03 12:06:45 +10001226extern int drm_lock(struct drm_device *dev, void *data,
1227 struct drm_file *file_priv);
1228extern int drm_unlock(struct drm_device *dev, void *data,
1229 struct drm_file *file_priv);
Dave Airlie55910512007-07-11 16:53:40 +10001230extern int drm_lock_free(struct drm_lock_data *lock_data, unsigned int context);
1231extern void drm_idlelock_take(struct drm_lock_data *lock_data);
1232extern void drm_idlelock_release(struct drm_lock_data *lock_data);
Thomas Hellstrom040ac322007-03-23 13:28:33 +11001233
1234/*
1235 * These are exported to drivers so that they can implement fencing using
1236 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
1237 */
1238
Eric Anholtc153f452007-09-03 12:06:45 +10001239extern int drm_i_have_hw_lock(struct drm_device *dev, struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001240
1241 /* Buffer management support (drm_bufs.h) */
Dave Airlie84b1fd12007-07-11 15:53:27 +10001242extern int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc * request);
1243extern int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc * request);
Benjamin Herrenschmidt41c2e752009-02-02 16:55:47 +11001244extern int drm_addmap(struct drm_device *dev, resource_size_t offset,
Dave Airliec60ce622007-07-11 15:27:12 +10001245 unsigned int size, enum drm_map_type type,
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +11001246 enum drm_map_flags flags, struct drm_local_map **map_ptr);
Eric Anholtc153f452007-09-03 12:06:45 +10001247extern int drm_addmap_ioctl(struct drm_device *dev, void *data,
1248 struct drm_file *file_priv);
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +11001249extern int drm_rmmap(struct drm_device *dev, struct drm_local_map *map);
1250extern int drm_rmmap_locked(struct drm_device *dev, struct drm_local_map *map);
Eric Anholtc153f452007-09-03 12:06:45 +10001251extern int drm_rmmap_ioctl(struct drm_device *dev, void *data,
1252 struct drm_file *file_priv);
1253extern int drm_addbufs(struct drm_device *dev, void *data,
1254 struct drm_file *file_priv);
1255extern int drm_infobufs(struct drm_device *dev, void *data,
1256 struct drm_file *file_priv);
1257extern int drm_markbufs(struct drm_device *dev, void *data,
1258 struct drm_file *file_priv);
1259extern int drm_freebufs(struct drm_device *dev, void *data,
1260 struct drm_file *file_priv);
1261extern int drm_mapbufs(struct drm_device *dev, void *data,
1262 struct drm_file *file_priv);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001263extern int drm_order(unsigned long size);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001264
1265 /* DMA support (drm_dma.h) */
Dave Airlie84b1fd12007-07-11 15:53:27 +10001266extern int drm_dma_setup(struct drm_device *dev);
1267extern void drm_dma_takedown(struct drm_device *dev);
Dave Airlie056219e2007-07-11 16:17:42 +10001268extern void drm_free_buffer(struct drm_device *dev, struct drm_buf * buf);
Eric Anholt6c340ea2007-08-25 20:23:09 +10001269extern void drm_core_reclaim_buffers(struct drm_device *dev,
1270 struct drm_file *filp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001271
1272 /* IRQ support (drm_irq.h) */
Eric Anholtc153f452007-09-03 12:06:45 +10001273extern int drm_control(struct drm_device *dev, void *data,
1274 struct drm_file *file_priv);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001275extern irqreturn_t drm_irq_handler(DRM_IRQ_ARGS);
Kristian Høgsbergdbb19d32008-08-20 11:04:27 -04001276extern int drm_irq_install(struct drm_device *dev);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001277extern int drm_irq_uninstall(struct drm_device *dev);
1278extern void drm_driver_irq_preinstall(struct drm_device *dev);
1279extern void drm_driver_irq_postinstall(struct drm_device *dev);
1280extern void drm_driver_irq_uninstall(struct drm_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001281
Jesse Barnes0a3e67a2008-09-30 12:14:26 -07001282extern int drm_vblank_init(struct drm_device *dev, int num_crtcs);
Dave Airlieaf6061a2008-05-07 12:15:39 +10001283extern int drm_wait_vblank(struct drm_device *dev, void *data,
Jesse Barnes0a3e67a2008-09-30 12:14:26 -07001284 struct drm_file *filp);
Dave Airlieaf6061a2008-05-07 12:15:39 +10001285extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq);
Jesse Barnes0a3e67a2008-09-30 12:14:26 -07001286extern u32 drm_vblank_count(struct drm_device *dev, int crtc);
1287extern void drm_handle_vblank(struct drm_device *dev, int crtc);
1288extern int drm_vblank_get(struct drm_device *dev, int crtc);
1289extern void drm_vblank_put(struct drm_device *dev, int crtc);
Li Peng778c9022009-11-09 12:51:22 +08001290extern void drm_vblank_off(struct drm_device *dev, int crtc);
Keith Packard52440212008-11-18 09:30:25 -08001291extern void drm_vblank_cleanup(struct drm_device *dev);
Jesse Barnes0a3e67a2008-09-30 12:14:26 -07001292/* Modesetting support */
Dave Airlief453ba02008-11-07 14:05:41 -08001293extern void drm_vblank_pre_modeset(struct drm_device *dev, int crtc);
1294extern void drm_vblank_post_modeset(struct drm_device *dev, int crtc);
Jesse Barnes0a3e67a2008-09-30 12:14:26 -07001295extern int drm_modeset_ctl(struct drm_device *dev, void *data,
1296 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001297
1298 /* AGP/GART support (drm_agpsupport.h) */
Dave Airlie55910512007-07-11 16:53:40 +10001299extern struct drm_agp_head *drm_agp_init(struct drm_device *dev);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001300extern int drm_agp_acquire(struct drm_device *dev);
Eric Anholtc153f452007-09-03 12:06:45 +10001301extern int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
1302 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001303extern int drm_agp_release(struct drm_device *dev);
Eric Anholtc153f452007-09-03 12:06:45 +10001304extern int drm_agp_release_ioctl(struct drm_device *dev, void *data,
1305 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001306extern int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode);
Eric Anholtc153f452007-09-03 12:06:45 +10001307extern int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
1308 struct drm_file *file_priv);
1309extern int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info);
1310extern int drm_agp_info_ioctl(struct drm_device *dev, void *data,
1311 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001312extern int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request);
Eric Anholtc153f452007-09-03 12:06:45 +10001313extern int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
1314 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001315extern int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request);
Eric Anholtc153f452007-09-03 12:06:45 +10001316extern int drm_agp_free_ioctl(struct drm_device *dev, void *data,
1317 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001318extern int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request);
Eric Anholtc153f452007-09-03 12:06:45 +10001319extern int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
1320 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001321extern int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
Eric Anholtc153f452007-09-03 12:06:45 +10001322extern int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
1323 struct drm_file *file_priv);
Eric Anholt673a3942008-07-30 12:06:12 -07001324extern void drm_agp_chipset_flush(struct drm_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001325
1326 /* Stub support (drm_stub.h) */
Dave Airlie7c1c2872008-11-28 14:22:24 +10001327extern int drm_setmaster_ioctl(struct drm_device *dev, void *data,
1328 struct drm_file *file_priv);
1329extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
1330 struct drm_file *file_priv);
1331struct drm_master *drm_master_create(struct drm_minor *minor);
1332extern struct drm_master *drm_master_get(struct drm_master *master);
1333extern void drm_master_put(struct drm_master **master);
Jordan Crousedcdb1672010-05-27 13:40:25 -06001334extern int drm_get_pci_dev(struct pci_dev *pdev,
1335 const struct pci_device_id *ent,
1336 struct drm_driver *driver);
1337extern int drm_get_platform_dev(struct platform_device *pdev,
1338 struct drm_driver *driver);
Kristian Høgsberg112b7152009-01-04 16:55:33 -05001339extern void drm_put_dev(struct drm_device *dev);
Dave Airlie2c14f282008-04-21 16:47:32 +10001340extern int drm_put_minor(struct drm_minor **minor);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001341extern unsigned int drm_debug;
Dave Airlie2c14f282008-04-21 16:47:32 +10001342
Greg Kroah-Hartman0650fd52006-01-20 14:08:59 -08001343extern struct class *drm_class;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001344extern struct proc_dir_entry *drm_proc_root;
Ben Gamari955b12d2009-02-17 20:08:49 -05001345extern struct dentry *drm_debugfs_root;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001346
Dave Airlie2c14f282008-04-21 16:47:32 +10001347extern struct idr drm_minors_idr;
1348
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +11001349extern struct drm_local_map *drm_getsarea(struct drm_device *dev);
Dave Airlieda509d72007-05-26 05:04:51 +10001350
Linus Torvalds1da177e2005-04-16 15:20:36 -07001351 /* Proc support (drm_proc.h) */
Dave Airlie2c14f282008-04-21 16:47:32 +10001352extern int drm_proc_init(struct drm_minor *minor, int minor_id,
1353 struct proc_dir_entry *root);
1354extern int drm_proc_cleanup(struct drm_minor *minor, struct proc_dir_entry *root);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001355
Ben Gamari955b12d2009-02-17 20:08:49 -05001356 /* Debugfs support */
1357#if defined(CONFIG_DEBUG_FS)
1358extern int drm_debugfs_init(struct drm_minor *minor, int minor_id,
1359 struct dentry *root);
1360extern int drm_debugfs_create_files(struct drm_info_list *files, int count,
1361 struct dentry *root, struct drm_minor *minor);
1362extern int drm_debugfs_remove_files(struct drm_info_list *files, int count,
1363 struct drm_minor *minor);
1364extern int drm_debugfs_cleanup(struct drm_minor *minor);
1365#endif
1366
1367 /* Info file support */
1368extern int drm_name_info(struct seq_file *m, void *data);
1369extern int drm_vm_info(struct seq_file *m, void *data);
1370extern int drm_queues_info(struct seq_file *m, void *data);
1371extern int drm_bufs_info(struct seq_file *m, void *data);
1372extern int drm_vblank_info(struct seq_file *m, void *data);
1373extern int drm_clients_info(struct seq_file *m, void* data);
1374extern int drm_gem_name_info(struct seq_file *m, void *data);
Ben Gamari955b12d2009-02-17 20:08:49 -05001375
1376#if DRM_DEBUG_CODE
1377extern int drm_vma_info(struct seq_file *m, void *data);
1378#endif
1379
Linus Torvalds1da177e2005-04-16 15:20:36 -07001380 /* Scatter Gather Support (drm_scatter.h) */
Dave Airlie55910512007-07-11 16:53:40 +10001381extern void drm_sg_cleanup(struct drm_sg_mem * entry);
Eric Anholtc153f452007-09-03 12:06:45 +10001382extern int drm_sg_alloc_ioctl(struct drm_device *dev, void *data,
1383 struct drm_file *file_priv);
1384extern int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request);
1385extern int drm_sg_free(struct drm_device *dev, void *data,
1386 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001387
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001388 /* ATI PCIGART support (ati_pcigart.h) */
Dave Airlie84b1fd12007-07-11 15:53:27 +10001389extern int drm_ati_pcigart_init(struct drm_device *dev,
Dave Airlie55910512007-07-11 16:53:40 +10001390 struct drm_ati_pcigart_info * gart_info);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001391extern int drm_ati_pcigart_cleanup(struct drm_device *dev,
Dave Airlie55910512007-07-11 16:53:40 +10001392 struct drm_ati_pcigart_info * gart_info);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001393
Dave Airlie84b1fd12007-07-11 15:53:27 +10001394extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
Zhenyu Wange6be8d92010-01-05 11:25:05 +08001395 size_t align);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001396extern void __drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
1397extern void drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001398
1399 /* sysfs support (drm_sysfs.c) */
Jesse Barnese8b962b2007-11-22 14:02:38 +10001400struct drm_sysfs_class;
Greg Kroah-Hartman0650fd52006-01-20 14:08:59 -08001401extern struct class *drm_sysfs_create(struct module *owner, char *name);
Jesse Barnese8b962b2007-11-22 14:02:38 +10001402extern void drm_sysfs_destroy(void);
Dave Airlie2c14f282008-04-21 16:47:32 +10001403extern int drm_sysfs_device_add(struct drm_minor *minor);
Dave Airlief453ba02008-11-07 14:05:41 -08001404extern void drm_sysfs_hotplug_event(struct drm_device *dev);
Dave Airlie2c14f282008-04-21 16:47:32 +10001405extern void drm_sysfs_device_remove(struct drm_minor *minor);
Dave Airlief453ba02008-11-07 14:05:41 -08001406extern char *drm_get_connector_status_name(enum drm_connector_status status);
1407extern int drm_sysfs_connector_add(struct drm_connector *connector);
1408extern void drm_sysfs_connector_remove(struct drm_connector *connector);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001409
Eric Anholt673a3942008-07-30 12:06:12 -07001410/* Graphics Execution Manager library functions (drm_gem.c) */
1411int drm_gem_init(struct drm_device *dev);
Jesse Barnesa2c0a972008-11-05 10:31:53 -08001412void drm_gem_destroy(struct drm_device *dev);
Daniel Vetterfd632aa2010-04-09 19:05:05 +00001413void drm_gem_object_release(struct drm_gem_object *obj);
Eric Anholt673a3942008-07-30 12:06:12 -07001414void drm_gem_object_free(struct kref *kref);
1415struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev,
1416 size_t size);
Daniel Vetter1d397042010-04-09 19:05:04 +00001417int drm_gem_object_init(struct drm_device *dev,
1418 struct drm_gem_object *obj, size_t size);
Dave Airlie29d08b32010-09-27 16:17:17 +10001419void drm_gem_object_handle_free(struct drm_gem_object *obj);
Jesse Barnesab00b3e2009-02-11 14:01:46 -08001420void drm_gem_vm_open(struct vm_area_struct *vma);
1421void drm_gem_vm_close(struct vm_area_struct *vma);
Jesse Barnesa2c0a972008-11-05 10:31:53 -08001422int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
Eric Anholt673a3942008-07-30 12:06:12 -07001423
Dave Airlieba4420c2010-03-09 10:56:52 +10001424#include "drm_global.h"
1425
Eric Anholt673a3942008-07-30 12:06:12 -07001426static inline void
1427drm_gem_object_reference(struct drm_gem_object *obj)
1428{
1429 kref_get(&obj->refcount);
1430}
1431
1432static inline void
1433drm_gem_object_unreference(struct drm_gem_object *obj)
1434{
Luca Barbieric3ae90c2010-02-09 05:49:11 +00001435 if (obj != NULL)
1436 kref_put(&obj->refcount, drm_gem_object_free);
1437}
Eric Anholt673a3942008-07-30 12:06:12 -07001438
Luca Barbieric3ae90c2010-02-09 05:49:11 +00001439static inline void
1440drm_gem_object_unreference_unlocked(struct drm_gem_object *obj)
1441{
Chris Wilson39b4d072010-09-30 09:10:26 +01001442 if (obj != NULL) {
1443 struct drm_device *dev = obj->dev;
1444 mutex_lock(&dev->struct_mutex);
1445 kref_put(&obj->refcount, drm_gem_object_free);
1446 mutex_unlock(&dev->struct_mutex);
1447 }
Eric Anholt673a3942008-07-30 12:06:12 -07001448}
1449
1450int drm_gem_handle_create(struct drm_file *file_priv,
1451 struct drm_gem_object *obj,
Pekka Paalanena1a2d1d2009-08-23 12:40:55 +03001452 u32 *handlep);
Eric Anholt673a3942008-07-30 12:06:12 -07001453
1454static inline void
1455drm_gem_object_handle_reference(struct drm_gem_object *obj)
1456{
1457 drm_gem_object_reference(obj);
Dave Airlie29d08b32010-09-27 16:17:17 +10001458 atomic_inc(&obj->handle_count);
Eric Anholt673a3942008-07-30 12:06:12 -07001459}
1460
1461static inline void
1462drm_gem_object_handle_unreference(struct drm_gem_object *obj)
1463{
1464 if (obj == NULL)
1465 return;
1466
Dave Airlie29d08b32010-09-27 16:17:17 +10001467 if (atomic_read(&obj->handle_count) == 0)
1468 return;
Eric Anholt673a3942008-07-30 12:06:12 -07001469 /*
1470 * Must bump handle count first as this may be the last
1471 * ref, in which case the object would disappear before we
1472 * checked for a name
1473 */
Dave Airlie29d08b32010-09-27 16:17:17 +10001474 if (atomic_dec_and_test(&obj->handle_count))
1475 drm_gem_object_handle_free(obj);
Eric Anholt673a3942008-07-30 12:06:12 -07001476 drm_gem_object_unreference(obj);
1477}
1478
Luca Barbieric3ae90c2010-02-09 05:49:11 +00001479static inline void
1480drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj)
1481{
1482 if (obj == NULL)
1483 return;
1484
Dave Airlie29d08b32010-09-27 16:17:17 +10001485 if (atomic_read(&obj->handle_count) == 0)
1486 return;
1487
Luca Barbieric3ae90c2010-02-09 05:49:11 +00001488 /*
1489 * Must bump handle count first as this may be the last
1490 * ref, in which case the object would disappear before we
1491 * checked for a name
1492 */
Dave Airlie29d08b32010-09-27 16:17:17 +10001493
1494 if (atomic_dec_and_test(&obj->handle_count))
1495 drm_gem_object_handle_free(obj);
Luca Barbieric3ae90c2010-02-09 05:49:11 +00001496 drm_gem_object_unreference_unlocked(obj);
1497}
1498
Eric Anholt673a3942008-07-30 12:06:12 -07001499struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev,
1500 struct drm_file *filp,
Pekka Paalanena1a2d1d2009-08-23 12:40:55 +03001501 u32 handle);
Eric Anholt673a3942008-07-30 12:06:12 -07001502int drm_gem_close_ioctl(struct drm_device *dev, void *data,
1503 struct drm_file *file_priv);
1504int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
1505 struct drm_file *file_priv);
1506int drm_gem_open_ioctl(struct drm_device *dev, void *data,
1507 struct drm_file *file_priv);
1508void drm_gem_open(struct drm_device *dev, struct drm_file *file_private);
1509void drm_gem_release(struct drm_device *dev, struct drm_file *file_private);
1510
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +11001511extern void drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev);
1512extern void drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev);
1513extern void drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001514
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +11001515static __inline__ struct drm_local_map *drm_core_findmap(struct drm_device *dev,
1516 unsigned int token)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001517{
Dave Airlie55910512007-07-11 16:53:40 +10001518 struct drm_map_list *_entry;
Dave Airliebd1b3312007-05-26 05:01:51 +10001519 list_for_each_entry(_entry, &dev->maplist, head)
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001520 if (_entry->user_token == token)
1521 return _entry->map;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001522 return NULL;
1523}
1524
Dave Airlie84b1fd12007-07-11 15:53:27 +10001525static __inline__ int drm_device_is_agp(struct drm_device *dev)
Dave Airliecda17382005-07-10 17:31:26 +10001526{
Jordan Crousedcdb1672010-05-27 13:40:25 -06001527 if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE))
1528 return 0;
1529
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001530 if (dev->driver->device_is_agp != NULL) {
1531 int err = (*dev->driver->device_is_agp) (dev);
1532
Dave Airliecda17382005-07-10 17:31:26 +10001533 if (err != 2) {
1534 return err;
1535 }
1536 }
1537
1538 return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP);
1539}
1540
Dave Airlie84b1fd12007-07-11 15:53:27 +10001541static __inline__ int drm_device_is_pcie(struct drm_device *dev)
Dave Airlieea98a922005-09-11 20:28:11 +10001542{
Jordan Crousedcdb1672010-05-27 13:40:25 -06001543 if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE))
1544 return 0;
1545 else
1546 return pci_find_capability(dev->pdev, PCI_CAP_ID_EXP);
Dave Airlieea98a922005-09-11 20:28:11 +10001547}
1548
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +11001549static __inline__ void drm_core_dropmap(struct drm_local_map *map)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001550{
1551}
1552
Dave Airlie72e942d2010-03-09 06:33:26 +00001553#include "drm_mem_util.h"
Jordan Crousedcdb1672010-05-27 13:40:25 -06001554
1555static inline void *drm_get_device(struct drm_device *dev)
1556{
1557 if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE))
1558 return dev->platformdev;
1559 else
1560 return dev->pdev;
1561}
1562
1563extern int drm_platform_init(struct drm_driver *driver);
1564extern int drm_pci_init(struct drm_driver *driver);
1565extern int drm_fill_in_dev(struct drm_device *dev,
1566 const struct pci_device_id *ent,
1567 struct drm_driver *driver);
1568int drm_get_minor(struct drm_device *dev, struct drm_minor **minor, int type);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001569/*@}*/
1570
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001571#endif /* __KERNEL__ */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001572#endif