blob: 202424d17ed7c1924ae5d26936369dc110564e44 [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
Lucas De Marchi25985ed2011-03-30 22:57:33 -030098 * The macro definition of DRM_DEBUG is used.
Zhao Yakui87fdff82009-07-20 13:48:06 +080099 * 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
Dave Airlie8410ea32010-12-15 03:16:38 +1000148
149#define DRIVER_BUS_PCI 0x1
150#define DRIVER_BUS_PLATFORM 0x2
151#define DRIVER_BUS_USB 0x3
Linus Torvalds1da177e2005-04-16 15:20:36 -0700152
153/***********************************************************************/
154/** \name Begin the DRM... */
155/*@{*/
156
157#define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then
158 also include looping detection. */
159
Thomas Hellstrom8669cbc2006-08-07 22:22:10 +1000160#define DRM_MAGIC_HASH_ORDER 4 /**< Size of key hash table. Must be power of 2. */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700161#define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */
162#define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */
163#define DRM_LOOPING_LIMIT 5000000
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164#define DRM_TIME_SLICE (HZ/20) /**< Time slice for GLXContexts */
165#define DRM_LOCK_SLICE 1 /**< Time slice for lock, in jiffies */
166
167#define DRM_FLAG_DEBUG 0x01
168
Linus Torvalds1da177e2005-04-16 15:20:36 -0700169#define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
Thomas Hellstrom8d153f72006-08-07 22:36:47 +1000170#define DRM_MAP_HASH_OFFSET 0x10000000
Linus Torvalds1da177e2005-04-16 15:20:36 -0700171
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000172/*@}*/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700173
174/***********************************************************************/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700175/** \name Macros to make printk easier */
176/*@{*/
177
178/**
179 * Error output.
180 *
181 * \param fmt printf() like format string.
182 * \param arg arguments
183 */
184#define DRM_ERROR(fmt, arg...) \
Harvey Harrisonbf9d8922008-04-30 00:55:10 -0700185 printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* " fmt , __func__ , ##arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700186
187/**
188 * Memory error output.
189 *
190 * \param area memory area where the error occurred.
191 * \param fmt printf() like format string.
192 * \param arg arguments
193 */
194#define DRM_MEM_ERROR(area, fmt, arg...) \
Harvey Harrisonbf9d8922008-04-30 00:55:10 -0700195 printk(KERN_ERR "[" DRM_NAME ":%s:%s] *ERROR* " fmt , __func__, \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700196 drm_mem_stats[area].name , ##arg)
197
198#define DRM_INFO(fmt, arg...) printk(KERN_INFO "[" DRM_NAME "] " fmt , ##arg)
199
200/**
201 * Debug output.
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000202 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700203 * \param fmt printf() like format string.
204 * \param arg arguments
205 */
206#if DRM_DEBUG_CODE
yakui_zhao4fefcb22009-06-02 14:09:47 +0800207#define DRM_DEBUG(fmt, args...) \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700208 do { \
yakui_zhao4fefcb22009-06-02 14:09:47 +0800209 drm_ut_debug_printk(DRM_UT_CORE, DRM_NAME, \
210 __func__, fmt, ##args); \
211 } while (0)
212
Zhao Yakui8a4c47f2009-07-20 13:48:04 +0800213#define DRM_DEBUG_DRIVER(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_DRIVER, DRM_NAME, \
yakui_zhao4fefcb22009-06-02 14:09:47 +0800216 __func__, fmt, ##args); \
217 } while (0)
Zhao Yakui8a4c47f2009-07-20 13:48:04 +0800218#define DRM_DEBUG_KMS(fmt, args...) \
yakui_zhao4fefcb22009-06-02 14:09:47 +0800219 do { \
Zhao Yakui8a4c47f2009-07-20 13:48:04 +0800220 drm_ut_debug_printk(DRM_UT_KMS, DRM_NAME, \
yakui_zhao4fefcb22009-06-02 14:09:47 +0800221 __func__, fmt, ##args); \
222 } while (0)
yakui_zhao4fefcb22009-06-02 14:09:47 +0800223#define DRM_LOG(fmt, args...) \
224 do { \
225 drm_ut_debug_printk(DRM_UT_CORE, NULL, \
226 NULL, fmt, ##args); \
227 } while (0)
228#define DRM_LOG_KMS(fmt, args...) \
229 do { \
230 drm_ut_debug_printk(DRM_UT_KMS, NULL, \
231 NULL, fmt, ##args); \
232 } while (0)
233#define DRM_LOG_MODE(fmt, args...) \
234 do { \
235 drm_ut_debug_printk(DRM_UT_MODE, NULL, \
236 NULL, fmt, ##args); \
237 } while (0)
238#define DRM_LOG_DRIVER(fmt, args...) \
239 do { \
240 drm_ut_debug_printk(DRM_UT_DRIVER, NULL, \
241 NULL, fmt, ##args); \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700242 } while (0)
243#else
Zhao Yakui8a4c47f2009-07-20 13:48:04 +0800244#define DRM_DEBUG_DRIVER(fmt, args...) do { } while (0)
245#define DRM_DEBUG_KMS(fmt, args...) do { } while (0)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700246#define DRM_DEBUG(fmt, arg...) do { } while (0)
yakui_zhao4fefcb22009-06-02 14:09:47 +0800247#define DRM_LOG(fmt, arg...) do { } while (0)
248#define DRM_LOG_KMS(fmt, args...) do { } while (0)
249#define DRM_LOG_MODE(fmt, arg...) do { } while (0)
250#define DRM_LOG_DRIVER(fmt, arg...) do { } while (0)
251
Linus Torvalds1da177e2005-04-16 15:20:36 -0700252#endif
253
Linus Torvalds1da177e2005-04-16 15:20:36 -0700254/*@}*/
255
Linus Torvalds1da177e2005-04-16 15:20:36 -0700256/***********************************************************************/
257/** \name Internal types and structures */
258/*@{*/
259
Dave Airlie99a26572005-09-25 13:25:41 +1000260#define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700261
262#define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
263#define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700264
265#define DRM_IF_VERSION(maj, min) (maj << 16 | min)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700266
267/**
268 * Test that the hardware lock is held by the caller, returning otherwise.
269 *
270 * \param dev DRM device.
271 * \param filp file pointer of the caller.
272 */
Roel Kluindcae3622009-06-10 12:43:48 -0700273#define LOCK_TEST_WITH_RETURN( dev, _file_priv ) \
274do { \
275 if (!_DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock) || \
276 _file_priv->master->lock.file_priv != _file_priv) { \
Eric Anholtc153f452007-09-03 12:06:45 +1000277 DRM_ERROR( "%s called without lock held, held %d owner %p %p\n",\
Roel Kluindcae3622009-06-10 12:43:48 -0700278 __func__, _DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock),\
279 _file_priv->master->lock.file_priv, _file_priv); \
280 return -EINVAL; \
281 } \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700282} while (0)
283
284/**
Linus Torvalds1da177e2005-04-16 15:20:36 -0700285 * Ioctl function type.
286 *
287 * \param inode device inode.
Eric Anholt6c340ea2007-08-25 20:23:09 +1000288 * \param file_priv DRM file private pointer.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700289 * \param cmd command.
290 * \param arg argument.
291 */
Eric Anholtc153f452007-09-03 12:06:45 +1000292typedef int drm_ioctl_t(struct drm_device *dev, void *data,
293 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700294
Dave Airlie9a186642005-06-23 21:29:18 +1000295typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
296 unsigned long arg);
297
Kristian Høgsberg1a959162009-12-02 12:13:48 -0500298#define DRM_IOCTL_NR(n) _IOC_NR(n)
299#define DRM_MAJOR 226
300
Dave Airliea7a2cc32006-01-02 13:54:04 +1100301#define DRM_AUTH 0x1
302#define DRM_MASTER 0x2
303#define DRM_ROOT_ONLY 0x4
Dave Airlief453ba02008-11-07 14:05:41 -0800304#define DRM_CONTROL_ALLOW 0x8
Arnd Bergmanned8b6702009-12-16 22:17:09 +0000305#define DRM_UNLOCKED 0x10
Dave Airliea7a2cc32006-01-02 13:54:04 +1100306
Eric Anholtc153f452007-09-03 12:06:45 +1000307struct drm_ioctl_desc {
308 unsigned int cmd;
Dave Airliea7a2cc32006-01-02 13:54:04 +1100309 int flags;
Richard Kennedyc972d752009-03-18 17:26:44 +0000310 drm_ioctl_t *func;
Dave Airlie1b2f1482010-08-14 20:20:34 +1000311 unsigned int cmd_drv;
Eric Anholtc153f452007-09-03 12:06:45 +1000312};
313
314/**
315 * Creates a driver or general drm_ioctl_desc array entry for the given
316 * ioctl, for use by drm_ioctl().
317 */
Dave Airlie1b2f1482010-08-14 20:20:34 +1000318
319#define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \
320 [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700321
Dave Airlie8fc2fdf2007-07-11 16:21:47 +1000322struct drm_magic_entry {
Thomas Hellstrom8669cbc2006-08-07 22:22:10 +1000323 struct list_head head;
Dave Airliee0be4282007-07-12 10:26:44 +1000324 struct drm_hash_item hash_item;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000325 struct drm_file *priv;
Dave Airlie8fc2fdf2007-07-11 16:21:47 +1000326};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700327
Dave Airlie8fc2fdf2007-07-11 16:21:47 +1000328struct drm_vma_entry {
Dave Airliebd1b3312007-05-26 05:01:51 +1000329 struct list_head head;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700330 struct vm_area_struct *vma;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000331 pid_t pid;
Dave Airlie8fc2fdf2007-07-11 16:21:47 +1000332};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700333
334/**
335 * DMA buffer.
336 */
Dave Airlie056219e2007-07-11 16:17:42 +1000337struct drm_buf {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000338 int idx; /**< Index into master buflist */
339 int total; /**< Buffer size */
340 int order; /**< log-base-2(total) */
341 int used; /**< Amount of buffer in use (for DMA) */
342 unsigned long offset; /**< Byte offset (used internally) */
343 void *address; /**< Address of buffer */
344 unsigned long bus_address; /**< Bus address of buffer */
345 struct drm_buf *next; /**< Kernel-only: used for free list */
346 __volatile__ int waiting; /**< On kernel DMA queue */
347 __volatile__ int pending; /**< On hardware DMA queue */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700348 wait_queue_head_t dma_wait; /**< Processes waiting */
Eric Anholt6c340ea2007-08-25 20:23:09 +1000349 struct drm_file *file_priv; /**< Private of holding file descr */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000350 int context; /**< Kernel queue for this buffer */
351 int while_locked; /**< Dispatch this buffer while locked */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700352 enum {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000353 DRM_LIST_NONE = 0,
354 DRM_LIST_FREE = 1,
355 DRM_LIST_WAIT = 2,
356 DRM_LIST_PEND = 3,
357 DRM_LIST_PRIO = 4,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700358 DRM_LIST_RECLAIM = 5
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000359 } list; /**< Which list we're on */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700360
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000361 int dev_priv_size; /**< Size of buffer private storage */
362 void *dev_private; /**< Per-buffer private storage */
Dave Airlie056219e2007-07-11 16:17:42 +1000363};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700364
Linus Torvalds1da177e2005-04-16 15:20:36 -0700365/** bufs is one longer than it has to be */
Dave Airliecdd55a22007-07-11 16:32:08 +1000366struct drm_waitlist {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000367 int count; /**< Number of possible buffers */
Dave Airlie056219e2007-07-11 16:17:42 +1000368 struct drm_buf **bufs; /**< List of pointers to buffers */
369 struct drm_buf **rp; /**< Read pointer */
370 struct drm_buf **wp; /**< Write pointer */
371 struct drm_buf **end; /**< End pointer */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000372 spinlock_t read_lock;
373 spinlock_t write_lock;
Dave Airliecdd55a22007-07-11 16:32:08 +1000374};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700375
Dave Airliecdd55a22007-07-11 16:32:08 +1000376struct drm_freelist {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000377 int initialized; /**< Freelist in use */
378 atomic_t count; /**< Number of free buffers */
Dave Airlie056219e2007-07-11 16:17:42 +1000379 struct drm_buf *next; /**< End pointer */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700380
381 wait_queue_head_t waiting; /**< Processes waiting on free bufs */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000382 int low_mark; /**< Low water mark */
383 int high_mark; /**< High water mark */
384 atomic_t wfh; /**< If waiting for high mark */
385 spinlock_t lock;
Dave Airliecdd55a22007-07-11 16:32:08 +1000386};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700387
Dave Airlieddf19b92006-03-19 18:56:12 +1100388typedef struct drm_dma_handle {
389 dma_addr_t busaddr;
390 void *vaddr;
391 size_t size;
392} drm_dma_handle_t;
393
Linus Torvalds1da177e2005-04-16 15:20:36 -0700394/**
395 * Buffer entry. There is one of this for each buffer size order.
396 */
Dave Airliecdd55a22007-07-11 16:32:08 +1000397struct drm_buf_entry {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000398 int buf_size; /**< size */
399 int buf_count; /**< number of buffers */
Dave Airlie056219e2007-07-11 16:17:42 +1000400 struct drm_buf *buflist; /**< buffer list */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000401 int seg_count;
402 int page_order;
Dave Airliecdd55a22007-07-11 16:32:08 +1000403 struct drm_dma_handle **seglist;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700404
Dave Airliecdd55a22007-07-11 16:32:08 +1000405 struct drm_freelist freelist;
406};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700407
Kristian Høgsbergc9a9c5e2009-09-12 04:33:34 +1000408/* Event queued up for userspace to read */
409struct drm_pending_event {
410 struct drm_event *event;
411 struct list_head link;
412 struct drm_file *file_priv;
Jesse Barnesb9c2c9a2010-07-01 16:48:09 -0700413 pid_t pid; /* pid of requester, no guarantee it's valid by the time
414 we deliver the event, for tracing only */
Kristian Høgsbergc9a9c5e2009-09-12 04:33:34 +1000415 void (*destroy)(struct drm_pending_event *event);
416};
417
Linus Torvalds1da177e2005-04-16 15:20:36 -0700418/** File private data */
Dave Airlie84b1fd12007-07-11 15:53:27 +1000419struct drm_file {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000420 int authenticated;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000421 pid_t pid;
422 uid_t uid;
423 drm_magic_t magic;
424 unsigned long ioctl_count;
Dave Airliebd1b3312007-05-26 05:01:51 +1000425 struct list_head lhead;
Dave Airlie2c14f282008-04-21 16:47:32 +1000426 struct drm_minor *minor;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000427 unsigned long lock_count;
Dave Airlie7c1c2872008-11-28 14:22:24 +1000428
Eric Anholt673a3942008-07-30 12:06:12 -0700429 /** Mapping of mm object handles to object pointers. */
430 struct idr object_idr;
431 /** Lock for synchronization of access to object_idr. */
432 spinlock_t table_lock;
Dave Airlie7c1c2872008-11-28 14:22:24 +1000433
Eric Anholt6c340ea2007-08-25 20:23:09 +1000434 struct file *filp;
Dave Airlie8562b3f2007-11-05 12:37:41 +1000435 void *driver_priv;
Dave Airlie7c1c2872008-11-28 14:22:24 +1000436
437 int is_master; /* this file private is a master for a minor */
438 struct drm_master *master; /* master this node is currently associated with
439 N.B. not always minor->master */
Dave Airlief453ba02008-11-07 14:05:41 -0800440 struct list_head fbs;
Kristian Høgsbergc9a9c5e2009-09-12 04:33:34 +1000441
442 wait_queue_head_t event_wait;
443 struct list_head event_list;
444 int event_space;
Dave Airlie84b1fd12007-07-11 15:53:27 +1000445};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700446
447/** Wait queue */
Dave Airliecdd55a22007-07-11 16:32:08 +1000448struct drm_queue {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000449 atomic_t use_count; /**< Outstanding uses (+1) */
450 atomic_t finalization; /**< Finalization in progress */
451 atomic_t block_count; /**< Count of processes waiting */
452 atomic_t block_read; /**< Queue blocked for reads */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700453 wait_queue_head_t read_queue; /**< Processes waiting on block_read */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000454 atomic_t block_write; /**< Queue blocked for writes */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700455 wait_queue_head_t write_queue; /**< Processes waiting on block_write */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000456 atomic_t total_queued; /**< Total queued statistic */
457 atomic_t total_flushed; /**< Total flushes statistic */
458 atomic_t total_locks; /**< Total locks statistics */
Dave Airliec60ce622007-07-11 15:27:12 +1000459 enum drm_ctx_flags flags; /**< Context preserving and 2D-only */
Dave Airliecdd55a22007-07-11 16:32:08 +1000460 struct drm_waitlist waitlist; /**< Pending buffers */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700461 wait_queue_head_t flush_queue; /**< Processes waiting until flush */
Dave Airliecdd55a22007-07-11 16:32:08 +1000462};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700463
464/**
465 * Lock data.
466 */
Dave Airlie55910512007-07-11 16:53:40 +1000467struct drm_lock_data {
Dave Airliec60ce622007-07-11 15:27:12 +1000468 struct drm_hw_lock *hw_lock; /**< Hardware lock */
Dave Airlie8562b3f2007-11-05 12:37:41 +1000469 /** Private of lock holder's file (NULL=kernel) */
470 struct drm_file *file_priv;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700471 wait_queue_head_t lock_queue; /**< Queue of blocked processes */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000472 unsigned long lock_time; /**< Time of last lock in jiffies */
Thomas Hellstrom040ac322007-03-23 13:28:33 +1100473 spinlock_t spinlock;
474 uint32_t kernel_waiters;
475 uint32_t user_waiters;
476 int idle_has_lock;
Dave Airlie55910512007-07-11 16:53:40 +1000477};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700478
479/**
480 * DMA data.
481 */
Dave Airliecdd55a22007-07-11 16:32:08 +1000482struct drm_device_dma {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700483
Dave Airliecdd55a22007-07-11 16:32:08 +1000484 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000485 int buf_count; /**< total number of buffers */
Dave Airlie056219e2007-07-11 16:17:42 +1000486 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000487 int seg_count;
488 int page_count; /**< number of pages */
489 unsigned long *pagelist; /**< page list */
490 unsigned long byte_count;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700491 enum {
492 _DRM_DMA_USE_AGP = 0x01,
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000493 _DRM_DMA_USE_SG = 0x02,
George Sapountzis3417f332006-10-24 12:03:04 -0700494 _DRM_DMA_USE_FB = 0x04,
495 _DRM_DMA_USE_PCI_RO = 0x08
Linus Torvalds1da177e2005-04-16 15:20:36 -0700496 } flags;
497
Dave Airliecdd55a22007-07-11 16:32:08 +1000498};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700499
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000500/**
Linus Torvalds1da177e2005-04-16 15:20:36 -0700501 * AGP memory entry. Stored as a doubly linked list.
502 */
Dave Airlie55910512007-07-11 16:53:40 +1000503struct drm_agp_mem {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000504 unsigned long handle; /**< handle */
505 DRM_AGP_MEM *memory;
506 unsigned long bound; /**< address */
507 int pages;
Dave Airliebd1b3312007-05-26 05:01:51 +1000508 struct list_head head;
Dave Airlie55910512007-07-11 16:53:40 +1000509};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700510
511/**
512 * AGP data.
513 *
514 * \sa drm_agp_init() and drm_device::agp.
515 */
Dave Airlie55910512007-07-11 16:53:40 +1000516struct drm_agp_head {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000517 DRM_AGP_KERN agp_info; /**< AGP device information */
Dave Airliebd1b3312007-05-26 05:01:51 +1000518 struct list_head memory;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000519 unsigned long mode; /**< AGP mode */
520 struct agp_bridge_data *bridge;
521 int enabled; /**< whether the AGP bus as been enabled */
522 int acquired; /**< whether the AGP device has been acquired */
523 unsigned long base;
524 int agp_mtrr;
525 int cant_use_aperture;
526 unsigned long page_mask;
Dave Airlie55910512007-07-11 16:53:40 +1000527};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700528
529/**
530 * Scatter-gather memory.
531 */
Dave Airlie55910512007-07-11 16:53:40 +1000532struct drm_sg_mem {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000533 unsigned long handle;
534 void *virtual;
535 int pages;
536 struct page **pagelist;
537 dma_addr_t *busaddr;
Dave Airlie55910512007-07-11 16:53:40 +1000538};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700539
Dave Airlie55910512007-07-11 16:53:40 +1000540struct drm_sigdata {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000541 int context;
Dave Airliec60ce622007-07-11 15:27:12 +1000542 struct drm_hw_lock *lock;
Dave Airlie55910512007-07-11 16:53:40 +1000543};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700544
Dave Airlie8562b3f2007-11-05 12:37:41 +1000545
Linus Torvalds1da177e2005-04-16 15:20:36 -0700546/**
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +1100547 * Kernel side of a mapping
548 */
549struct drm_local_map {
Benjamin Herrenschmidt41c2e752009-02-02 16:55:47 +1100550 resource_size_t offset; /**< Requested physical address (0 for SAREA)*/
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +1100551 unsigned long size; /**< Requested physical size (bytes) */
552 enum drm_map_type type; /**< Type of memory to map */
553 enum drm_map_flags flags; /**< Flags */
554 void *handle; /**< User-space: "Handle" to pass to mmap() */
555 /**< Kernel-space: kernel-virtual address */
556 int mtrr; /**< MTRR slot used */
557};
558
559typedef struct drm_local_map drm_local_map_t;
560
561/**
Linus Torvalds1da177e2005-04-16 15:20:36 -0700562 * Mappings list
563 */
Dave Airlie55910512007-07-11 16:53:40 +1000564struct drm_map_list {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000565 struct list_head head; /**< list head */
Dave Airliee0be4282007-07-12 10:26:44 +1000566 struct drm_hash_item hash;
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +1100567 struct drm_local_map *map; /**< mapping */
Dave Airlie8562b3f2007-11-05 12:37:41 +1000568 uint64_t user_token;
Dave Airlie7c1c2872008-11-28 14:22:24 +1000569 struct drm_master *master;
Jesse Barnesa2c0a972008-11-05 10:31:53 -0800570 struct drm_mm_node *file_offset_node; /**< fake offset */
Dave Airlie55910512007-07-11 16:53:40 +1000571};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700572
Linus Torvalds1da177e2005-04-16 15:20:36 -0700573/**
574 * Context handle list
575 */
Dave Airlie55910512007-07-11 16:53:40 +1000576struct drm_ctx_list {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000577 struct list_head head; /**< list head */
578 drm_context_t handle; /**< context handle */
Dave Airlie84b1fd12007-07-11 15:53:27 +1000579 struct drm_file *tag; /**< associated fd private data */
Dave Airlie55910512007-07-11 16:53:40 +1000580};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700581
Dave Airlieea98a922005-09-11 20:28:11 +1000582/* location of GART table */
583#define DRM_ATI_GART_MAIN 1
584#define DRM_ATI_GART_FB 2
585
Dave Airlief2b04cd2007-05-08 15:19:23 +1000586#define DRM_ATI_GART_PCI 1
587#define DRM_ATI_GART_PCIE 2
588#define DRM_ATI_GART_IGP 3
589
Dave Airlie55910512007-07-11 16:53:40 +1000590struct drm_ati_pcigart_info {
Dave Airlieea98a922005-09-11 20:28:11 +1000591 int gart_table_location;
Dave Airlief2b04cd2007-05-08 15:19:23 +1000592 int gart_reg_if;
Dave Airlief26c4732006-01-02 17:18:39 +1100593 void *addr;
Dave Airlieea98a922005-09-11 20:28:11 +1000594 dma_addr_t bus_addr;
Dave Airlieb05c2382008-03-17 10:24:24 +1000595 dma_addr_t table_mask;
596 struct drm_dma_handle *table_handle;
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +1100597 struct drm_local_map mapping;
Dave Airlief2b04cd2007-05-08 15:19:23 +1000598 int table_size;
Dave Airlie55910512007-07-11 16:53:40 +1000599};
Dave Airlieea98a922005-09-11 20:28:11 +1000600
Linus Torvalds1da177e2005-04-16 15:20:36 -0700601/**
Jesse Barnesa2c0a972008-11-05 10:31:53 -0800602 * GEM specific mm private for tracking GEM objects
603 */
604struct drm_gem_mm {
605 struct drm_mm offset_manager; /**< Offset mgmt for buffer objects */
606 struct drm_open_hash offset_hash; /**< User token hash table for maps */
607};
608
609/**
Eric Anholt673a3942008-07-30 12:06:12 -0700610 * This structure defines the drm_mm memory object, which will be used by the
611 * DRM for its buffer objects.
612 */
613struct drm_gem_object {
614 /** Reference count of this object */
615 struct kref refcount;
616
617 /** Handle count of this object. Each handle also holds a reference */
Dave Airlie29d08b32010-09-27 16:17:17 +1000618 atomic_t handle_count; /* number of handles on this object */
Eric Anholt673a3942008-07-30 12:06:12 -0700619
620 /** Related drm device */
621 struct drm_device *dev;
622
623 /** File representing the shmem storage */
624 struct file *filp;
625
Jesse Barnesa2c0a972008-11-05 10:31:53 -0800626 /* Mapping info for this object */
627 struct drm_map_list map_list;
628
Eric Anholt673a3942008-07-30 12:06:12 -0700629 /**
630 * Size of the object, in bytes. Immutable over the object's
631 * lifetime.
632 */
633 size_t size;
634
635 /**
636 * Global name for this object, starts at 1. 0 means unnamed.
637 * Access is covered by the object_name_lock in the related drm_device
638 */
639 int name;
640
641 /**
642 * Memory domains. These monitor which caches contain read/write data
643 * related to the object. When transitioning from one set of domains
644 * to another, the driver is called to ensure that caches are suitably
645 * flushed and invalidated
646 */
647 uint32_t read_domains;
648 uint32_t write_domain;
649
650 /**
651 * While validating an exec operation, the
652 * new read/write domain values are computed here.
653 * They will be transferred to the above values
654 * at the point that any cache flushing occurs
655 */
656 uint32_t pending_read_domains;
657 uint32_t pending_write_domain;
658
659 void *driver_private;
660};
661
Dave Airlief453ba02008-11-07 14:05:41 -0800662#include "drm_crtc.h"
663
Dave Airlie7c1c2872008-11-28 14:22:24 +1000664/* per-master structure */
665struct drm_master {
666
667 struct kref refcount; /* refcount for this master */
668
669 struct list_head head; /**< each minor contains a list of masters */
670 struct drm_minor *minor; /**< link back to minor we are a master for */
671
672 char *unique; /**< Unique identifier: e.g., busid */
673 int unique_len; /**< Length of unique field */
Vegard Nossum1147c9c2008-12-02 13:38:47 +1000674 int unique_size; /**< amount allocated */
Dave Airlie7c1c2872008-11-28 14:22:24 +1000675
676 int blocked; /**< Blocked due to VC switch? */
677
678 /** \name Authentication */
679 /*@{ */
680 struct drm_open_hash magiclist;
681 struct list_head magicfree;
682 /*@} */
683
684 struct drm_lock_data lock; /**< Information on hardware lock */
685
686 void *driver_priv; /**< Private structure for driver to use */
687};
688
Mario Kleiner27641c32010-10-23 04:20:23 +0200689/* Size of ringbuffer for vblank timestamps. Just double-buffer
690 * in initial implementation.
691 */
692#define DRM_VBLANKTIME_RBSIZE 2
693
694/* Flags and return codes for get_vblank_timestamp() driver function. */
695#define DRM_CALLED_FROM_VBLIRQ 1
696#define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0)
697#define DRM_VBLANKTIME_INVBL (1 << 1)
698
699/* get_scanout_position() return flags */
700#define DRM_SCANOUTPOS_VALID (1 << 0)
701#define DRM_SCANOUTPOS_INVBL (1 << 1)
702#define DRM_SCANOUTPOS_ACCURATE (1 << 2)
703
Dave Airlie8410ea32010-12-15 03:16:38 +1000704struct drm_bus {
705 int bus_type;
706 int (*get_irq)(struct drm_device *dev);
707 const char *(*get_name)(struct drm_device *dev);
708 int (*set_busid)(struct drm_device *dev, struct drm_master *master);
709 int (*set_unique)(struct drm_device *dev, struct drm_master *master,
710 struct drm_unique *unique);
711 int (*irq_by_busid)(struct drm_device *dev, struct drm_irq_busid *p);
712 /* hooks that are for PCI */
713 int (*agp_init)(struct drm_device *dev);
714
715};
716
Eric Anholt673a3942008-07-30 12:06:12 -0700717/**
Linus Torvalds1da177e2005-04-16 15:20:36 -0700718 * DRM driver structure. This structure represent the common code for
719 * a family of cards. There will one drm_device for each card present
720 * in this family
721 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700722struct drm_driver {
Dave Airlie22eae942005-11-10 22:16:34 +1100723 int (*load) (struct drm_device *, unsigned long flags);
724 int (*firstopen) (struct drm_device *);
Dave Airlie84b1fd12007-07-11 15:53:27 +1000725 int (*open) (struct drm_device *, struct drm_file *);
Eric Anholt6c340ea2007-08-25 20:23:09 +1000726 void (*preclose) (struct drm_device *, struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +1000727 void (*postclose) (struct drm_device *, struct drm_file *);
Dave Airlie22eae942005-11-10 22:16:34 +1100728 void (*lastclose) (struct drm_device *);
729 int (*unload) (struct drm_device *);
Dave Airlieb932ccb2008-02-20 10:02:20 +1000730 int (*suspend) (struct drm_device *, pm_message_t state);
Jesse Barnese8b962b2007-11-22 14:02:38 +1000731 int (*resume) (struct drm_device *);
Eric Anholtc153f452007-09-03 12:06:45 +1000732 int (*dma_ioctl) (struct drm_device *dev, void *data, struct drm_file *file_priv);
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000733 int (*dma_quiescent) (struct drm_device *);
Dave Airlie84b1fd12007-07-11 15:53:27 +1000734 int (*context_dtor) (struct drm_device *dev, int context);
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000735
Dave Airliecda17382005-07-10 17:31:26 +1000736 /**
Jesse Barnes0a3e67a2008-09-30 12:14:26 -0700737 * get_vblank_counter - get raw hardware vblank counter
738 * @dev: DRM device
739 * @crtc: counter to fetch
740 *
741 * Driver callback for fetching a raw hardware vblank counter
742 * for @crtc. If a device doesn't have a hardware counter, the
743 * driver can simply return the value of drm_vblank_count and
744 * make the enable_vblank() and disable_vblank() hooks into no-ops,
745 * leaving interrupts enabled at all times.
746 *
747 * Wraparound handling and loss of events due to modesetting is dealt
748 * with in the DRM core code.
749 *
750 * RETURNS
751 * Raw vblank counter value.
752 */
753 u32 (*get_vblank_counter) (struct drm_device *dev, int crtc);
754
755 /**
756 * enable_vblank - enable vblank interrupt events
757 * @dev: DRM device
758 * @crtc: which irq to enable
759 *
760 * Enable vblank interrupts for @crtc. If the device doesn't have
761 * a hardware vblank counter, this routine should be a no-op, since
762 * interrupts will have to stay on to keep the count accurate.
763 *
764 * RETURNS
765 * Zero on success, appropriate errno if the given @crtc's vblank
766 * interrupt cannot be enabled.
767 */
768 int (*enable_vblank) (struct drm_device *dev, int crtc);
769
770 /**
771 * disable_vblank - disable vblank interrupt events
772 * @dev: DRM device
773 * @crtc: which irq to enable
774 *
775 * Disable vblank interrupts for @crtc. If the device doesn't have
776 * a hardware vblank counter, this routine should be a no-op, since
777 * interrupts will have to stay on to keep the count accurate.
778 */
779 void (*disable_vblank) (struct drm_device *dev, int crtc);
780
781 /**
Dave Airliecda17382005-07-10 17:31:26 +1000782 * Called by \c drm_device_is_agp. Typically used to determine if a
783 * card is really attached to AGP or not.
784 *
785 * \param dev DRM device handle
786 *
787 * \returns
788 * One of three values is returned depending on whether or not the
789 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
790 * (return of 1), or may or may not be AGP (return of 2).
791 */
Dave Airlie84b1fd12007-07-11 15:53:27 +1000792 int (*device_is_agp) (struct drm_device *dev);
Dave Airliecda17382005-07-10 17:31:26 +1000793
Mario Kleiner27641c32010-10-23 04:20:23 +0200794 /**
795 * Called by vblank timestamping code.
796 *
797 * Return the current display scanout position from a crtc.
798 *
799 * \param dev DRM device.
800 * \param crtc Id of the crtc to query.
801 * \param *vpos Target location for current vertical scanout position.
802 * \param *hpos Target location for current horizontal scanout position.
803 *
804 * Returns vpos as a positive number while in active scanout area.
805 * Returns vpos as a negative number inside vblank, counting the number
806 * of scanlines to go until end of vblank, e.g., -1 means "one scanline
807 * until start of active scanout / end of vblank."
808 *
809 * \return Flags, or'ed together as follows:
810 *
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300811 * DRM_SCANOUTPOS_VALID = Query successful.
Mario Kleiner27641c32010-10-23 04:20:23 +0200812 * DRM_SCANOUTPOS_INVBL = Inside vblank.
813 * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of
814 * this flag means that returned position may be offset by a constant
815 * but unknown small number of scanlines wrt. real scanout position.
816 *
817 */
818 int (*get_scanout_position) (struct drm_device *dev, int crtc,
819 int *vpos, int *hpos);
820
821 /**
822 * Called by \c drm_get_last_vbltimestamp. Should return a precise
823 * timestamp when the most recent VBLANK interval ended or will end.
824 *
825 * Specifically, the timestamp in @vblank_time should correspond as
826 * closely as possible to the time when the first video scanline of
827 * the video frame after the end of VBLANK will start scanning out,
828 * the time immmediately after end of the VBLANK interval. If the
829 * @crtc is currently inside VBLANK, this will be a time in the future.
830 * If the @crtc is currently scanning out a frame, this will be the
831 * past start time of the current scanout. This is meant to adhere
832 * to the OpenML OML_sync_control extension specification.
833 *
834 * \param dev dev DRM device handle.
835 * \param crtc crtc for which timestamp should be returned.
836 * \param *max_error Maximum allowable timestamp error in nanoseconds.
837 * Implementation should strive to provide timestamp
838 * with an error of at most *max_error nanoseconds.
839 * Returns true upper bound on error for timestamp.
840 * \param *vblank_time Target location for returned vblank timestamp.
841 * \param flags 0 = Defaults, no special treatment needed.
842 * \param DRM_CALLED_FROM_VBLIRQ = Function is called from vblank
843 * irq handler. Some drivers need to apply some workarounds
844 * for gpu-specific vblank irq quirks if flag is set.
845 *
846 * \returns
847 * Zero if timestamping isn't supported in current display mode or a
848 * negative number on failure. A positive status code on success,
849 * which describes how the vblank_time timestamp was computed.
850 */
851 int (*get_vblank_timestamp) (struct drm_device *dev, int crtc,
852 int *max_error,
853 struct timeval *vblank_time,
854 unsigned flags);
855
Linus Torvalds1da177e2005-04-16 15:20:36 -0700856 /* these have to be filled in */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000857
Dave Airlie22eae942005-11-10 22:16:34 +1100858 irqreturn_t(*irq_handler) (DRM_IRQ_ARGS);
Dave Airlie84b1fd12007-07-11 15:53:27 +1000859 void (*irq_preinstall) (struct drm_device *dev);
Jesse Barnes0a3e67a2008-09-30 12:14:26 -0700860 int (*irq_postinstall) (struct drm_device *dev);
Dave Airlie84b1fd12007-07-11 15:53:27 +1000861 void (*irq_uninstall) (struct drm_device *dev);
Eric Anholt6c340ea2007-08-25 20:23:09 +1000862 void (*reclaim_buffers) (struct drm_device *dev,
863 struct drm_file * file_priv);
Dave Airlied985c102006-01-02 21:32:48 +1100864 void (*reclaim_buffers_locked) (struct drm_device *dev,
Eric Anholt6c340ea2007-08-25 20:23:09 +1000865 struct drm_file *file_priv);
Thomas Hellstrom040ac322007-03-23 13:28:33 +1100866 void (*reclaim_buffers_idlelocked) (struct drm_device *dev,
Eric Anholt6c340ea2007-08-25 20:23:09 +1000867 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +1000868 void (*set_version) (struct drm_device *dev,
Dave Airliec60ce622007-07-11 15:27:12 +1000869 struct drm_set_version *sv);
Dave Airlie22eae942005-11-10 22:16:34 +1100870
Dave Airlie7c1c2872008-11-28 14:22:24 +1000871 /* Master routines */
872 int (*master_create)(struct drm_device *dev, struct drm_master *master);
873 void (*master_destroy)(struct drm_device *dev, struct drm_master *master);
Thomas Hellstrom862302f2009-12-02 18:15:25 +0000874 /**
875 * master_set is called whenever the minor master is set.
876 * master_drop is called whenever the minor master is dropped.
877 */
878
879 int (*master_set)(struct drm_device *dev, struct drm_file *file_priv,
880 bool from_open);
881 void (*master_drop)(struct drm_device *dev, struct drm_file *file_priv,
882 bool from_release);
Dave Airlie7c1c2872008-11-28 14:22:24 +1000883
Ben Gamari955b12d2009-02-17 20:08:49 -0500884 int (*debugfs_init)(struct drm_minor *minor);
885 void (*debugfs_cleanup)(struct drm_minor *minor);
Eric Anholt673a3942008-07-30 12:06:12 -0700886
887 /**
888 * Driver-specific constructor for drm_gem_objects, to set up
889 * obj->driver_private.
890 *
891 * Returns 0 on success.
892 */
893 int (*gem_init_object) (struct drm_gem_object *obj);
894 void (*gem_free_object) (struct drm_gem_object *obj);
895
Dave Airlie28d52042009-09-21 14:33:58 +1000896 /* vga arb irq handler */
897 void (*vgaarb_irq)(struct drm_device *dev, bool state);
898
Dave Airlieff72145b2011-02-07 12:16:14 +1000899 /* dumb alloc support */
900 int (*dumb_create)(struct drm_file *file_priv,
901 struct drm_device *dev,
902 struct drm_mode_create_dumb *args);
903 int (*dumb_map_offset)(struct drm_file *file_priv,
904 struct drm_device *dev, uint32_t handle,
905 uint64_t *offset);
906 int (*dumb_destroy)(struct drm_file *file_priv,
907 struct drm_device *dev,
908 uint32_t handle);
909
Jesse Barnesa2c0a972008-11-05 10:31:53 -0800910 /* Driver private ops for this object */
911 struct vm_operations_struct *gem_vm_ops;
912
Dave Airlie22eae942005-11-10 22:16:34 +1100913 int major;
914 int minor;
915 int patchlevel;
916 char *name;
917 char *desc;
918 char *date;
919
Linus Torvalds1da177e2005-04-16 15:20:36 -0700920 u32 driver_features;
921 int dev_priv_size;
Eric Anholtc153f452007-09-03 12:06:45 +1000922 struct drm_ioctl_desc *ioctls;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700923 int num_ioctls;
924 struct file_operations fops;
Dave Airlie8410ea32010-12-15 03:16:38 +1000925 union {
926 struct pci_driver *pci;
927 struct platform_device *platform_device;
Dave Airliea250b9f2010-12-15 07:13:55 +1000928 struct usb_driver *usb;
Dave Airlie8410ea32010-12-15 03:16:38 +1000929 } kdriver;
930 struct drm_bus *bus;
931
Dave Airliee7f7ab42008-11-28 13:43:47 +1000932 /* List of devices hanging off this driver */
933 struct list_head device_list;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700934};
935
Dave Airlie2c14f282008-04-21 16:47:32 +1000936#define DRM_MINOR_UNASSIGNED 0
937#define DRM_MINOR_LEGACY 1
Dave Airlief453ba02008-11-07 14:05:41 -0800938#define DRM_MINOR_CONTROL 2
939#define DRM_MINOR_RENDER 3
Dave Airlie2c14f282008-04-21 16:47:32 +1000940
Ben Gamari955b12d2009-02-17 20:08:49 -0500941
942/**
943 * debugfs node list. This structure represents a debugfs file to
944 * be created by the drm core
945 */
946struct drm_debugfs_list {
947 const char *name; /** file name */
948 int (*show)(struct seq_file*, void*); /** show callback */
949 u32 driver_features; /**< Required driver features for this entry */
950};
951
952/**
953 * debugfs node structure. This structure represents a debugfs file.
954 */
955struct drm_debugfs_node {
956 struct list_head list;
957 struct drm_minor *minor;
958 struct drm_debugfs_list *debugfs_ent;
959 struct dentry *dent;
960};
961
962/**
963 * Info file list entry. This structure represents a debugfs or proc file to
964 * be created by the drm core
965 */
966struct drm_info_list {
967 const char *name; /** file name */
968 int (*show)(struct seq_file*, void*); /** show callback */
969 u32 driver_features; /**< Required driver features for this entry */
970 void *data;
971};
972
973/**
974 * debugfs node structure. This structure represents a debugfs file.
975 */
976struct drm_info_node {
977 struct list_head list;
978 struct drm_minor *minor;
979 struct drm_info_list *info_ent;
980 struct dentry *dent;
981};
982
Linus Torvalds1da177e2005-04-16 15:20:36 -0700983/**
Dave Airlie2c14f282008-04-21 16:47:32 +1000984 * DRM minor structure. This structure represents a drm minor number.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700985 */
Dave Airlie2c14f282008-04-21 16:47:32 +1000986struct drm_minor {
987 int index; /**< Minor device number */
988 int type; /**< Control or render */
989 dev_t device; /**< Device number for mknod */
990 struct device kdev; /**< Linux device */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700991 struct drm_device *dev;
Ben Gamari955b12d2009-02-17 20:08:49 -0500992
993 struct proc_dir_entry *proc_root; /**< proc directory entry */
994 struct drm_info_node proc_nodes;
995 struct dentry *debugfs_root;
996 struct drm_info_node debugfs_nodes;
997
Dave Airlie7c1c2872008-11-28 14:22:24 +1000998 struct drm_master *master; /* currently active master for this node */
999 struct list_head master_list;
Dave Airlief453ba02008-11-07 14:05:41 -08001000 struct drm_mode_group mode_group;
Dave Airlie84b1fd12007-07-11 15:53:27 +10001001};
Linus Torvalds1da177e2005-04-16 15:20:36 -07001002
Kristian Høgsbergc9a9c5e2009-09-12 04:33:34 +10001003struct drm_pending_vblank_event {
1004 struct drm_pending_event base;
1005 int pipe;
1006 struct drm_event_vblank event;
1007};
1008
Linus Torvalds1da177e2005-04-16 15:20:36 -07001009/**
1010 * DRM device structure. This structure represent a complete card that
1011 * may contain multiple heads.
1012 */
Dave Airlie84b1fd12007-07-11 15:53:27 +10001013struct drm_device {
Dave Airliee7f7ab42008-11-28 13:43:47 +10001014 struct list_head driver_item; /**< list of devices per driver */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001015 char *devname; /**< For /proc/interrupts */
1016 int if_version; /**< Highest interface version set */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001017
Linus Torvalds1da177e2005-04-16 15:20:36 -07001018 /** \name Locks */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001019 /*@{ */
1020 spinlock_t count_lock; /**< For inuse, drm_device::open_count, drm_device::buf_use */
Dave Airlie30e2fb12006-02-02 19:37:46 +11001021 struct mutex struct_mutex; /**< For others */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001022 /*@} */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001023
1024 /** \name Usage Counters */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001025 /*@{ */
1026 int open_count; /**< Outstanding files open */
1027 atomic_t ioctl_count; /**< Outstanding IOCTLs pending */
1028 atomic_t vma_count; /**< Outstanding vma areas open */
1029 int buf_use; /**< Buffers in use -- cannot alloc */
1030 atomic_t buf_alloc; /**< Buffer allocation in progress */
1031 /*@} */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001032
1033 /** \name Performance counters */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001034 /*@{ */
1035 unsigned long counters;
Dave Airliec60ce622007-07-11 15:27:12 +10001036 enum drm_stat_type types[15];
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001037 atomic_t counts[15];
1038 /*@} */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001039
Dave Airliebd1b3312007-05-26 05:01:51 +10001040 struct list_head filelist;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001041
1042 /** \name Memory management */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001043 /*@{ */
Dave Airliebd1b3312007-05-26 05:01:51 +10001044 struct list_head maplist; /**< Linked list of regions */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001045 int map_count; /**< Number of mappable regions */
Dave Airliee0be4282007-07-12 10:26:44 +10001046 struct drm_open_hash map_hash; /**< User token hash table for maps */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001047
1048 /** \name Context handle management */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001049 /*@{ */
Dave Airliebd1b3312007-05-26 05:01:51 +10001050 struct list_head ctxlist; /**< Linked list of context handles */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001051 int ctx_count; /**< Number of context handles */
Dave Airlie30e2fb12006-02-02 19:37:46 +11001052 struct mutex ctxlist_mutex; /**< For ctxlist */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001053
Dave Airlie62968142007-07-17 10:46:52 +10001054 struct idr ctx_idr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001055
Dave Airliebd1b3312007-05-26 05:01:51 +10001056 struct list_head vmalist; /**< List of vmas (for debugging) */
Dave Airlief453ba02008-11-07 14:05:41 -08001057
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001058 /*@} */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001059
1060 /** \name DMA queues (contexts) */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001061 /*@{ */
1062 int queue_count; /**< Number of active DMA queues */
1063 int queue_reserved; /**< Number of reserved DMA queues */
1064 int queue_slots; /**< Actual length of queuelist */
Dave Airliecdd55a22007-07-11 16:32:08 +10001065 struct drm_queue **queuelist; /**< Vector of pointers to DMA queues */
1066 struct drm_device_dma *dma; /**< Optional pointer for DMA support */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001067 /*@} */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001068
1069 /** \name Context support */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001070 /*@{ */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001071 int irq_enabled; /**< True if irq handler is enabled */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001072 __volatile__ long context_flag; /**< Context swapping flag */
1073 __volatile__ long interrupt_flag; /**< Interruption handler flag */
1074 __volatile__ long dma_flag; /**< DMA dispatch flag */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001075 wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */
1076 int last_checked; /**< Last context checked for DMA */
1077 int last_context; /**< Last current context */
1078 unsigned long last_switch; /**< jiffies at last context switch */
1079 /*@} */
1080
1081 struct work_struct work;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001082 /** \name VBLANK IRQ support */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001083 /*@{ */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001084
Jesse Barnes0a3e67a2008-09-30 12:14:26 -07001085 /*
1086 * At load time, disabling the vblank interrupt won't be allowed since
1087 * old clients may not call the modeset ioctl and therefore misbehave.
1088 * Once the modeset ioctl *has* been called though, we can safely
1089 * disable them when unused.
1090 */
1091 int vblank_disable_allowed;
1092
1093 wait_queue_head_t *vbl_queue; /**< VBLANK wait queue */
1094 atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */
Mario Kleiner27641c32010-10-23 04:20:23 +02001095 struct timeval *_vblank_time; /**< timestamp of current vblank_count (drivers must alloc right number of fields) */
1096 spinlock_t vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001097 spinlock_t vbl_lock;
Jesse Barnes0a3e67a2008-09-30 12:14:26 -07001098 atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */
1099 u32 *last_vblank; /* protected by dev->vbl_lock, used */
1100 /* for wraparound handling */
1101 int *vblank_enabled; /* so we don't call enable more than
1102 once per disable */
1103 int *vblank_inmodeset; /* Display driver is setting mode */
Eric Anholtfede5c92008-12-19 17:23:38 -08001104 u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */
Jesse Barnes0a3e67a2008-09-30 12:14:26 -07001105 struct timer_list vblank_disable_timer;
1106
1107 u32 max_vblank_count; /**< size of vblank counter register */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001108
Kristian Høgsbergc9a9c5e2009-09-12 04:33:34 +10001109 /**
1110 * List of events
1111 */
1112 struct list_head vblank_event_list;
1113 spinlock_t event_lock;
1114
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001115 /*@} */
1116 cycles_t ctx_start;
1117 cycles_t lck_start;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001118
Linus Torvalds1da177e2005-04-16 15:20:36 -07001119 struct fasync_struct *buf_async;/**< Processes waiting for SIGIO */
1120 wait_queue_head_t buf_readers; /**< Processes waiting to read */
1121 wait_queue_head_t buf_writers; /**< Processes waiting to ctx switch */
1122
Dave Airlie55910512007-07-11 16:53:40 +10001123 struct drm_agp_head *agp; /**< AGP data */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001124
Jordan Crousedcdb1672010-05-27 13:40:25 -06001125 struct device *dev; /**< Device structure */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001126 struct pci_dev *pdev; /**< PCI device structure */
Eric Anholt2f02cc32006-09-22 04:19:34 +10001127 int pci_vendor; /**< PCI vendor id */
1128 int pci_device; /**< PCI device id */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001129#ifdef __alpha__
Linus Torvalds1da177e2005-04-16 15:20:36 -07001130 struct pci_controller *hose;
1131#endif
Jordan Crousedcdb1672010-05-27 13:40:25 -06001132
1133 struct platform_device *platformdev; /**< Platform device struture */
Dave Airliea250b9f2010-12-15 07:13:55 +10001134 struct usb_device *usbdev;
Jordan Crousedcdb1672010-05-27 13:40:25 -06001135
Dave Airlie55910512007-07-11 16:53:40 +10001136 struct drm_sg_mem *sg; /**< Scatter gather memory */
Dave Airlie19227562011-02-24 08:35:06 +10001137 unsigned int num_crtcs; /**< Number of CRTCs on this device */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001138 void *dev_private; /**< device private data */
Jesse Barnesa2c0a972008-11-05 10:31:53 -08001139 void *mm_private;
1140 struct address_space *dev_mapping;
Dave Airlie55910512007-07-11 16:53:40 +10001141 struct drm_sigdata sigdata; /**< For block_all_signals */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001142 sigset_t sigmask;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001143
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001144 struct drm_driver *driver;
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +11001145 struct drm_local_map *agp_buffer_map;
Dave Airlied1f2b552005-08-05 22:11:22 +10001146 unsigned int agp_buffer_token;
Dave Airlief453ba02008-11-07 14:05:41 -08001147 struct drm_minor *control; /**< Control node for card */
Dave Airlie2c14f282008-04-21 16:47:32 +10001148 struct drm_minor *primary; /**< render type primary screen head */
=?utf-8?q?Michel_D=C3=A4nzer?=bea56792006-10-24 23:04:19 +10001149
Dave Airlief453ba02008-11-07 14:05:41 -08001150 struct drm_mode_config mode_config; /**< Current mode config */
1151
Eric Anholt673a3942008-07-30 12:06:12 -07001152 /** \name GEM information */
1153 /*@{ */
1154 spinlock_t object_name_lock;
1155 struct idr object_name_idr;
Eric Anholt673a3942008-07-30 12:06:12 -07001156 /*@} */
Dave Airlie5bcf7192010-12-07 09:20:40 +10001157 int switch_power_state;
Dave Airlie84b1fd12007-07-11 15:53:27 +10001158};
Linus Torvalds1da177e2005-04-16 15:20:36 -07001159
Dave Airlie5bcf7192010-12-07 09:20:40 +10001160#define DRM_SWITCH_POWER_ON 0
1161#define DRM_SWITCH_POWER_OFF 1
1162#define DRM_SWITCH_POWER_CHANGING 2
1163
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001164static __inline__ int drm_core_check_feature(struct drm_device *dev,
1165 int feature)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001166{
1167 return ((dev->driver->driver_features & feature) ? 1 : 0);
1168}
1169
Jordan Crousedcdb1672010-05-27 13:40:25 -06001170static inline int drm_dev_to_irq(struct drm_device *dev)
1171{
Dave Airlie8410ea32010-12-15 03:16:38 +10001172 return dev->driver->bus->get_irq(dev);
Jordan Crousedcdb1672010-05-27 13:40:25 -06001173}
1174
Dave Airlie33229602006-08-07 20:23:42 +10001175
Linus Torvalds1da177e2005-04-16 15:20:36 -07001176#if __OS_HAS_AGP
1177static inline int drm_core_has_AGP(struct drm_device *dev)
1178{
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001179 return drm_core_check_feature(dev, DRIVER_USE_AGP);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001180}
1181#else
1182#define drm_core_has_AGP(dev) (0)
1183#endif
1184
1185#if __OS_HAS_MTRR
1186static inline int drm_core_has_MTRR(struct drm_device *dev)
1187{
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001188 return drm_core_check_feature(dev, DRIVER_USE_MTRR);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001189}
Dave Airlie269dc512006-01-02 16:23:01 +11001190
1191#define DRM_MTRR_WC MTRR_TYPE_WRCOMB
1192
1193static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
1194 unsigned int flags)
1195{
1196 return mtrr_add(offset, size, flags, 1);
1197}
1198
1199static inline int drm_mtrr_del(int handle, unsigned long offset,
1200 unsigned long size, unsigned int flags)
1201{
1202 return mtrr_del(handle, offset, size);
1203}
1204
Linus Torvalds1da177e2005-04-16 15:20:36 -07001205#else
1206#define drm_core_has_MTRR(dev) (0)
Dave Airlie9c7d4622006-01-12 20:44:30 +11001207
1208#define DRM_MTRR_WC 0
1209
1210static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
1211 unsigned int flags)
1212{
1213 return 0;
1214}
1215
1216static inline int drm_mtrr_del(int handle, unsigned long offset,
1217 unsigned long size, unsigned int flags)
1218{
1219 return 0;
1220}
Linus Torvalds1da177e2005-04-16 15:20:36 -07001221#endif
1222
1223/******************************************************************/
1224/** \name Internal function definitions */
1225/*@{*/
1226
Linus Torvalds1da177e2005-04-16 15:20:36 -07001227 /* Driver support (drm_drv.h) */
Arnd Bergmanned8b6702009-12-16 22:17:09 +00001228extern long drm_ioctl(struct file *filp,
1229 unsigned int cmd, unsigned long arg);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001230extern long drm_compat_ioctl(struct file *filp,
1231 unsigned int cmd, unsigned long arg);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001232extern int drm_lastclose(struct drm_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001233
1234 /* Device support (drm_fops.h) */
Arnd Bergmann58374712010-07-10 23:51:39 +02001235extern struct mutex drm_global_mutex;
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001236extern int drm_open(struct inode *inode, struct file *filp);
1237extern int drm_stub_open(struct inode *inode, struct file *filp);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001238extern int drm_fasync(int fd, struct file *filp, int on);
Kristian Høgsbergc9a9c5e2009-09-12 04:33:34 +10001239extern ssize_t drm_read(struct file *filp, char __user *buffer,
1240 size_t count, loff_t *offset);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001241extern int drm_release(struct inode *inode, struct file *filp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001242
1243 /* Mapping support (drm_vm.h) */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001244extern int drm_mmap(struct file *filp, struct vm_area_struct *vma);
Jesse Barnesa2c0a972008-11-05 10:31:53 -08001245extern int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma);
1246extern void drm_vm_open_locked(struct vm_area_struct *vma);
Chris Wilson31dfbc92010-09-27 21:28:30 +01001247extern void drm_vm_close_locked(struct vm_area_struct *vma);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001248extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001249
1250 /* Memory management support (drm_memory.h) */
1251#include "drm_memory.h"
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001252extern void drm_mem_init(void);
1253extern int drm_mem_info(char *buf, char **start, off_t offset,
1254 int request, int *eof, void *data);
1255extern void *drm_realloc(void *oldpt, size_t oldsize, size_t size, int area);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001256
Daniel Vetter690bb512010-08-23 22:53:35 +02001257extern void drm_free_agp(DRM_AGP_MEM * handle, int pages);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001258extern int drm_bind_agp(DRM_AGP_MEM * handle, unsigned int start);
Eric Anholt673a3942008-07-30 12:06:12 -07001259extern DRM_AGP_MEM *drm_agp_bind_pages(struct drm_device *dev,
1260 struct page **pages,
1261 unsigned long num_pages,
Keith Packardba1eb1d2008-10-14 19:55:10 -07001262 uint32_t gtt_offset,
1263 uint32_t type);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001264extern int drm_unbind_agp(DRM_AGP_MEM * handle);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001265
1266 /* Misc. IOCTL support (drm_ioctl.h) */
Eric Anholtc153f452007-09-03 12:06:45 +10001267extern int drm_irq_by_busid(struct drm_device *dev, void *data,
1268 struct drm_file *file_priv);
1269extern int drm_getunique(struct drm_device *dev, void *data,
1270 struct drm_file *file_priv);
1271extern int drm_setunique(struct drm_device *dev, void *data,
1272 struct drm_file *file_priv);
1273extern int drm_getmap(struct drm_device *dev, void *data,
1274 struct drm_file *file_priv);
1275extern int drm_getclient(struct drm_device *dev, void *data,
1276 struct drm_file *file_priv);
1277extern int drm_getstats(struct drm_device *dev, void *data,
1278 struct drm_file *file_priv);
Ben Skeggs9f354212011-02-21 11:17:35 +10001279extern int drm_getcap(struct drm_device *dev, void *data,
1280 struct drm_file *file_priv);
Eric Anholtc153f452007-09-03 12:06:45 +10001281extern int drm_setversion(struct drm_device *dev, void *data,
1282 struct drm_file *file_priv);
1283extern int drm_noop(struct drm_device *dev, void *data,
1284 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001285
1286 /* Context IOCTL support (drm_context.h) */
Eric Anholtc153f452007-09-03 12:06:45 +10001287extern int drm_resctx(struct drm_device *dev, void *data,
1288 struct drm_file *file_priv);
1289extern int drm_addctx(struct drm_device *dev, void *data,
1290 struct drm_file *file_priv);
1291extern int drm_modctx(struct drm_device *dev, void *data,
1292 struct drm_file *file_priv);
1293extern int drm_getctx(struct drm_device *dev, void *data,
1294 struct drm_file *file_priv);
1295extern int drm_switchctx(struct drm_device *dev, void *data,
1296 struct drm_file *file_priv);
1297extern int drm_newctx(struct drm_device *dev, void *data,
1298 struct drm_file *file_priv);
1299extern int drm_rmctx(struct drm_device *dev, void *data,
1300 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001301
Dave Airlie84b1fd12007-07-11 15:53:27 +10001302extern int drm_ctxbitmap_init(struct drm_device *dev);
1303extern void drm_ctxbitmap_cleanup(struct drm_device *dev);
1304extern void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001305
Eric Anholtc153f452007-09-03 12:06:45 +10001306extern int drm_setsareactx(struct drm_device *dev, void *data,
1307 struct drm_file *file_priv);
1308extern int drm_getsareactx(struct drm_device *dev, void *data,
1309 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001310
Linus Torvalds1da177e2005-04-16 15:20:36 -07001311 /* Authentication IOCTL support (drm_auth.h) */
Eric Anholtc153f452007-09-03 12:06:45 +10001312extern int drm_getmagic(struct drm_device *dev, void *data,
1313 struct drm_file *file_priv);
1314extern int drm_authmagic(struct drm_device *dev, void *data,
1315 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001316
Eric Anholt673a3942008-07-30 12:06:12 -07001317/* Cache management (drm_cache.c) */
1318void drm_clflush_pages(struct page *pages[], unsigned long num_pages);
1319
Linus Torvalds1da177e2005-04-16 15:20:36 -07001320 /* Locking IOCTL support (drm_lock.h) */
Eric Anholtc153f452007-09-03 12:06:45 +10001321extern int drm_lock(struct drm_device *dev, void *data,
1322 struct drm_file *file_priv);
1323extern int drm_unlock(struct drm_device *dev, void *data,
1324 struct drm_file *file_priv);
Dave Airlie55910512007-07-11 16:53:40 +10001325extern int drm_lock_free(struct drm_lock_data *lock_data, unsigned int context);
1326extern void drm_idlelock_take(struct drm_lock_data *lock_data);
1327extern void drm_idlelock_release(struct drm_lock_data *lock_data);
Thomas Hellstrom040ac322007-03-23 13:28:33 +11001328
1329/*
1330 * These are exported to drivers so that they can implement fencing using
1331 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
1332 */
1333
Eric Anholtc153f452007-09-03 12:06:45 +10001334extern int drm_i_have_hw_lock(struct drm_device *dev, struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001335
1336 /* Buffer management support (drm_bufs.h) */
Dave Airlie84b1fd12007-07-11 15:53:27 +10001337extern int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc * request);
1338extern int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc * request);
Benjamin Herrenschmidt41c2e752009-02-02 16:55:47 +11001339extern int drm_addmap(struct drm_device *dev, resource_size_t offset,
Dave Airliec60ce622007-07-11 15:27:12 +10001340 unsigned int size, enum drm_map_type type,
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +11001341 enum drm_map_flags flags, struct drm_local_map **map_ptr);
Eric Anholtc153f452007-09-03 12:06:45 +10001342extern int drm_addmap_ioctl(struct drm_device *dev, void *data,
1343 struct drm_file *file_priv);
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +11001344extern int drm_rmmap(struct drm_device *dev, struct drm_local_map *map);
1345extern int drm_rmmap_locked(struct drm_device *dev, struct drm_local_map *map);
Eric Anholtc153f452007-09-03 12:06:45 +10001346extern int drm_rmmap_ioctl(struct drm_device *dev, void *data,
1347 struct drm_file *file_priv);
1348extern int drm_addbufs(struct drm_device *dev, void *data,
1349 struct drm_file *file_priv);
1350extern int drm_infobufs(struct drm_device *dev, void *data,
1351 struct drm_file *file_priv);
1352extern int drm_markbufs(struct drm_device *dev, void *data,
1353 struct drm_file *file_priv);
1354extern int drm_freebufs(struct drm_device *dev, void *data,
1355 struct drm_file *file_priv);
1356extern int drm_mapbufs(struct drm_device *dev, void *data,
1357 struct drm_file *file_priv);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001358extern int drm_order(unsigned long size);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001359
1360 /* DMA support (drm_dma.h) */
Dave Airlie84b1fd12007-07-11 15:53:27 +10001361extern int drm_dma_setup(struct drm_device *dev);
1362extern void drm_dma_takedown(struct drm_device *dev);
Dave Airlie056219e2007-07-11 16:17:42 +10001363extern void drm_free_buffer(struct drm_device *dev, struct drm_buf * buf);
Eric Anholt6c340ea2007-08-25 20:23:09 +10001364extern void drm_core_reclaim_buffers(struct drm_device *dev,
1365 struct drm_file *filp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001366
1367 /* IRQ support (drm_irq.h) */
Eric Anholtc153f452007-09-03 12:06:45 +10001368extern int drm_control(struct drm_device *dev, void *data,
1369 struct drm_file *file_priv);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001370extern irqreturn_t drm_irq_handler(DRM_IRQ_ARGS);
Kristian Høgsbergdbb19d32008-08-20 11:04:27 -04001371extern int drm_irq_install(struct drm_device *dev);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001372extern int drm_irq_uninstall(struct drm_device *dev);
1373extern void drm_driver_irq_preinstall(struct drm_device *dev);
1374extern void drm_driver_irq_postinstall(struct drm_device *dev);
1375extern void drm_driver_irq_uninstall(struct drm_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001376
Jesse Barnes0a3e67a2008-09-30 12:14:26 -07001377extern int drm_vblank_init(struct drm_device *dev, int num_crtcs);
Dave Airlieaf6061a2008-05-07 12:15:39 +10001378extern int drm_wait_vblank(struct drm_device *dev, void *data,
Jesse Barnes0a3e67a2008-09-30 12:14:26 -07001379 struct drm_file *filp);
Dave Airlieaf6061a2008-05-07 12:15:39 +10001380extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq);
Jesse Barnes0a3e67a2008-09-30 12:14:26 -07001381extern u32 drm_vblank_count(struct drm_device *dev, int crtc);
Mario Kleiner27641c32010-10-23 04:20:23 +02001382extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc,
1383 struct timeval *vblanktime);
Chris Wilson78c6e172011-01-31 10:48:04 +00001384extern bool drm_handle_vblank(struct drm_device *dev, int crtc);
Jesse Barnes0a3e67a2008-09-30 12:14:26 -07001385extern int drm_vblank_get(struct drm_device *dev, int crtc);
1386extern void drm_vblank_put(struct drm_device *dev, int crtc);
Li Peng778c9022009-11-09 12:51:22 +08001387extern void drm_vblank_off(struct drm_device *dev, int crtc);
Keith Packard52440212008-11-18 09:30:25 -08001388extern void drm_vblank_cleanup(struct drm_device *dev);
Mario Kleiner27641c32010-10-23 04:20:23 +02001389extern u32 drm_get_last_vbltimestamp(struct drm_device *dev, int crtc,
1390 struct timeval *tvblank, unsigned flags);
1391extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev,
1392 int crtc, int *max_error,
1393 struct timeval *vblank_time,
1394 unsigned flags,
1395 struct drm_crtc *refcrtc);
1396extern void drm_calc_timestamping_constants(struct drm_crtc *crtc);
1397
Jesse Barnes0a3e67a2008-09-30 12:14:26 -07001398/* Modesetting support */
Dave Airlief453ba02008-11-07 14:05:41 -08001399extern void drm_vblank_pre_modeset(struct drm_device *dev, int crtc);
1400extern void drm_vblank_post_modeset(struct drm_device *dev, int crtc);
Jesse Barnes0a3e67a2008-09-30 12:14:26 -07001401extern int drm_modeset_ctl(struct drm_device *dev, void *data,
1402 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001403
1404 /* AGP/GART support (drm_agpsupport.h) */
Dave Airlie55910512007-07-11 16:53:40 +10001405extern struct drm_agp_head *drm_agp_init(struct drm_device *dev);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001406extern int drm_agp_acquire(struct drm_device *dev);
Eric Anholtc153f452007-09-03 12:06:45 +10001407extern int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
1408 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001409extern int drm_agp_release(struct drm_device *dev);
Eric Anholtc153f452007-09-03 12:06:45 +10001410extern int drm_agp_release_ioctl(struct drm_device *dev, void *data,
1411 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001412extern int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode);
Eric Anholtc153f452007-09-03 12:06:45 +10001413extern int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
1414 struct drm_file *file_priv);
1415extern int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info);
1416extern int drm_agp_info_ioctl(struct drm_device *dev, void *data,
1417 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001418extern int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request);
Eric Anholtc153f452007-09-03 12:06:45 +10001419extern int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
1420 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001421extern int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request);
Eric Anholtc153f452007-09-03 12:06:45 +10001422extern int drm_agp_free_ioctl(struct drm_device *dev, void *data,
1423 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001424extern int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request);
Eric Anholtc153f452007-09-03 12:06:45 +10001425extern int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
1426 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001427extern int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
Eric Anholtc153f452007-09-03 12:06:45 +10001428extern int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
1429 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001430
1431 /* Stub support (drm_stub.h) */
Dave Airlie7c1c2872008-11-28 14:22:24 +10001432extern int drm_setmaster_ioctl(struct drm_device *dev, void *data,
1433 struct drm_file *file_priv);
1434extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
1435 struct drm_file *file_priv);
1436struct drm_master *drm_master_create(struct drm_minor *minor);
1437extern struct drm_master *drm_master_get(struct drm_master *master);
1438extern void drm_master_put(struct drm_master **master);
Dave Airlie8410ea32010-12-15 03:16:38 +10001439
Kristian Høgsberg112b7152009-01-04 16:55:33 -05001440extern void drm_put_dev(struct drm_device *dev);
Dave Airlie2c14f282008-04-21 16:47:32 +10001441extern int drm_put_minor(struct drm_minor **minor);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001442extern unsigned int drm_debug;
Dave Airlie2c14f282008-04-21 16:47:32 +10001443
Mario Kleiner27641c32010-10-23 04:20:23 +02001444extern unsigned int drm_vblank_offdelay;
1445extern unsigned int drm_timestamp_precision;
1446
Greg Kroah-Hartman0650fd52006-01-20 14:08:59 -08001447extern struct class *drm_class;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001448extern struct proc_dir_entry *drm_proc_root;
Ben Gamari955b12d2009-02-17 20:08:49 -05001449extern struct dentry *drm_debugfs_root;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001450
Dave Airlie2c14f282008-04-21 16:47:32 +10001451extern struct idr drm_minors_idr;
1452
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +11001453extern struct drm_local_map *drm_getsarea(struct drm_device *dev);
Dave Airlieda509d72007-05-26 05:04:51 +10001454
Linus Torvalds1da177e2005-04-16 15:20:36 -07001455 /* Proc support (drm_proc.h) */
Dave Airlie2c14f282008-04-21 16:47:32 +10001456extern int drm_proc_init(struct drm_minor *minor, int minor_id,
1457 struct proc_dir_entry *root);
1458extern int drm_proc_cleanup(struct drm_minor *minor, struct proc_dir_entry *root);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001459
Ben Gamari955b12d2009-02-17 20:08:49 -05001460 /* Debugfs support */
1461#if defined(CONFIG_DEBUG_FS)
1462extern int drm_debugfs_init(struct drm_minor *minor, int minor_id,
1463 struct dentry *root);
1464extern int drm_debugfs_create_files(struct drm_info_list *files, int count,
1465 struct dentry *root, struct drm_minor *minor);
1466extern int drm_debugfs_remove_files(struct drm_info_list *files, int count,
1467 struct drm_minor *minor);
1468extern int drm_debugfs_cleanup(struct drm_minor *minor);
1469#endif
1470
1471 /* Info file support */
1472extern int drm_name_info(struct seq_file *m, void *data);
1473extern int drm_vm_info(struct seq_file *m, void *data);
1474extern int drm_queues_info(struct seq_file *m, void *data);
1475extern int drm_bufs_info(struct seq_file *m, void *data);
1476extern int drm_vblank_info(struct seq_file *m, void *data);
1477extern int drm_clients_info(struct seq_file *m, void* data);
1478extern int drm_gem_name_info(struct seq_file *m, void *data);
Ben Gamari955b12d2009-02-17 20:08:49 -05001479
1480#if DRM_DEBUG_CODE
1481extern int drm_vma_info(struct seq_file *m, void *data);
1482#endif
1483
Linus Torvalds1da177e2005-04-16 15:20:36 -07001484 /* Scatter Gather Support (drm_scatter.h) */
Dave Airlie55910512007-07-11 16:53:40 +10001485extern void drm_sg_cleanup(struct drm_sg_mem * entry);
Eric Anholtc153f452007-09-03 12:06:45 +10001486extern int drm_sg_alloc_ioctl(struct drm_device *dev, void *data,
1487 struct drm_file *file_priv);
1488extern int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request);
1489extern int drm_sg_free(struct drm_device *dev, void *data,
1490 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001491
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001492 /* ATI PCIGART support (ati_pcigart.h) */
Dave Airlie84b1fd12007-07-11 15:53:27 +10001493extern int drm_ati_pcigart_init(struct drm_device *dev,
Dave Airlie55910512007-07-11 16:53:40 +10001494 struct drm_ati_pcigart_info * gart_info);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001495extern int drm_ati_pcigart_cleanup(struct drm_device *dev,
Dave Airlie55910512007-07-11 16:53:40 +10001496 struct drm_ati_pcigart_info * gart_info);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001497
Dave Airlie84b1fd12007-07-11 15:53:27 +10001498extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
Zhenyu Wange6be8d92010-01-05 11:25:05 +08001499 size_t align);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001500extern void __drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
1501extern void drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001502
1503 /* sysfs support (drm_sysfs.c) */
Jesse Barnese8b962b2007-11-22 14:02:38 +10001504struct drm_sysfs_class;
Greg Kroah-Hartman0650fd52006-01-20 14:08:59 -08001505extern struct class *drm_sysfs_create(struct module *owner, char *name);
Jesse Barnese8b962b2007-11-22 14:02:38 +10001506extern void drm_sysfs_destroy(void);
Dave Airlie2c14f282008-04-21 16:47:32 +10001507extern int drm_sysfs_device_add(struct drm_minor *minor);
Dave Airlief453ba02008-11-07 14:05:41 -08001508extern void drm_sysfs_hotplug_event(struct drm_device *dev);
Dave Airlie2c14f282008-04-21 16:47:32 +10001509extern void drm_sysfs_device_remove(struct drm_minor *minor);
Dave Airlief453ba02008-11-07 14:05:41 -08001510extern char *drm_get_connector_status_name(enum drm_connector_status status);
1511extern int drm_sysfs_connector_add(struct drm_connector *connector);
1512extern void drm_sysfs_connector_remove(struct drm_connector *connector);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001513
Eric Anholt673a3942008-07-30 12:06:12 -07001514/* Graphics Execution Manager library functions (drm_gem.c) */
1515int drm_gem_init(struct drm_device *dev);
Jesse Barnesa2c0a972008-11-05 10:31:53 -08001516void drm_gem_destroy(struct drm_device *dev);
Daniel Vetterfd632aa2010-04-09 19:05:05 +00001517void drm_gem_object_release(struct drm_gem_object *obj);
Eric Anholt673a3942008-07-30 12:06:12 -07001518void drm_gem_object_free(struct kref *kref);
1519struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev,
1520 size_t size);
Daniel Vetter1d397042010-04-09 19:05:04 +00001521int drm_gem_object_init(struct drm_device *dev,
1522 struct drm_gem_object *obj, size_t size);
Dave Airlie29d08b32010-09-27 16:17:17 +10001523void drm_gem_object_handle_free(struct drm_gem_object *obj);
Jesse Barnesab00b3e2009-02-11 14:01:46 -08001524void drm_gem_vm_open(struct vm_area_struct *vma);
1525void drm_gem_vm_close(struct vm_area_struct *vma);
Jesse Barnesa2c0a972008-11-05 10:31:53 -08001526int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
Eric Anholt673a3942008-07-30 12:06:12 -07001527
Dave Airlieba4420c2010-03-09 10:56:52 +10001528#include "drm_global.h"
1529
Eric Anholt673a3942008-07-30 12:06:12 -07001530static inline void
1531drm_gem_object_reference(struct drm_gem_object *obj)
1532{
1533 kref_get(&obj->refcount);
1534}
1535
1536static inline void
1537drm_gem_object_unreference(struct drm_gem_object *obj)
1538{
Luca Barbieric3ae90c2010-02-09 05:49:11 +00001539 if (obj != NULL)
1540 kref_put(&obj->refcount, drm_gem_object_free);
1541}
Eric Anholt673a3942008-07-30 12:06:12 -07001542
Luca Barbieric3ae90c2010-02-09 05:49:11 +00001543static inline void
1544drm_gem_object_unreference_unlocked(struct drm_gem_object *obj)
1545{
Chris Wilson39b4d072010-09-30 09:10:26 +01001546 if (obj != NULL) {
1547 struct drm_device *dev = obj->dev;
1548 mutex_lock(&dev->struct_mutex);
1549 kref_put(&obj->refcount, drm_gem_object_free);
1550 mutex_unlock(&dev->struct_mutex);
1551 }
Eric Anholt673a3942008-07-30 12:06:12 -07001552}
1553
1554int drm_gem_handle_create(struct drm_file *file_priv,
1555 struct drm_gem_object *obj,
Pekka Paalanena1a2d1d2009-08-23 12:40:55 +03001556 u32 *handlep);
Dave Airlieff72145b2011-02-07 12:16:14 +10001557int drm_gem_handle_delete(struct drm_file *filp, u32 handle);
Eric Anholt673a3942008-07-30 12:06:12 -07001558
1559static inline void
1560drm_gem_object_handle_reference(struct drm_gem_object *obj)
1561{
1562 drm_gem_object_reference(obj);
Dave Airlie29d08b32010-09-27 16:17:17 +10001563 atomic_inc(&obj->handle_count);
Eric Anholt673a3942008-07-30 12:06:12 -07001564}
1565
1566static inline void
1567drm_gem_object_handle_unreference(struct drm_gem_object *obj)
1568{
1569 if (obj == NULL)
1570 return;
1571
Dave Airlie29d08b32010-09-27 16:17:17 +10001572 if (atomic_read(&obj->handle_count) == 0)
1573 return;
Eric Anholt673a3942008-07-30 12:06:12 -07001574 /*
1575 * Must bump handle count first as this may be the last
1576 * ref, in which case the object would disappear before we
1577 * checked for a name
1578 */
Dave Airlie29d08b32010-09-27 16:17:17 +10001579 if (atomic_dec_and_test(&obj->handle_count))
1580 drm_gem_object_handle_free(obj);
Eric Anholt673a3942008-07-30 12:06:12 -07001581 drm_gem_object_unreference(obj);
1582}
1583
Luca Barbieric3ae90c2010-02-09 05:49:11 +00001584static inline void
1585drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj)
1586{
1587 if (obj == NULL)
1588 return;
1589
Dave Airlie29d08b32010-09-27 16:17:17 +10001590 if (atomic_read(&obj->handle_count) == 0)
1591 return;
1592
Luca Barbieric3ae90c2010-02-09 05:49:11 +00001593 /*
1594 * Must bump handle count first as this may be the last
1595 * ref, in which case the object would disappear before we
1596 * checked for a name
1597 */
Dave Airlie29d08b32010-09-27 16:17:17 +10001598
1599 if (atomic_dec_and_test(&obj->handle_count))
1600 drm_gem_object_handle_free(obj);
Luca Barbieric3ae90c2010-02-09 05:49:11 +00001601 drm_gem_object_unreference_unlocked(obj);
1602}
1603
Eric Anholt673a3942008-07-30 12:06:12 -07001604struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev,
1605 struct drm_file *filp,
Pekka Paalanena1a2d1d2009-08-23 12:40:55 +03001606 u32 handle);
Eric Anholt673a3942008-07-30 12:06:12 -07001607int drm_gem_close_ioctl(struct drm_device *dev, void *data,
1608 struct drm_file *file_priv);
1609int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
1610 struct drm_file *file_priv);
1611int drm_gem_open_ioctl(struct drm_device *dev, void *data,
1612 struct drm_file *file_priv);
1613void drm_gem_open(struct drm_device *dev, struct drm_file *file_private);
1614void drm_gem_release(struct drm_device *dev, struct drm_file *file_private);
1615
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +11001616extern void drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev);
1617extern void drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev);
1618extern void drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001619
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +11001620static __inline__ struct drm_local_map *drm_core_findmap(struct drm_device *dev,
1621 unsigned int token)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001622{
Dave Airlie55910512007-07-11 16:53:40 +10001623 struct drm_map_list *_entry;
Dave Airliebd1b3312007-05-26 05:01:51 +10001624 list_for_each_entry(_entry, &dev->maplist, head)
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001625 if (_entry->user_token == token)
1626 return _entry->map;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001627 return NULL;
1628}
1629
Dave Airlie8410ea32010-12-15 03:16:38 +10001630static __inline__ void drm_core_dropmap(struct drm_local_map *map)
Dave Airliecda17382005-07-10 17:31:26 +10001631{
Dave Airlie8410ea32010-12-15 03:16:38 +10001632}
Jordan Crousedcdb1672010-05-27 13:40:25 -06001633
Dave Airlie8410ea32010-12-15 03:16:38 +10001634#include "drm_mem_util.h"
1635
1636extern int drm_fill_in_dev(struct drm_device *dev,
1637 const struct pci_device_id *ent,
1638 struct drm_driver *driver);
1639int drm_get_minor(struct drm_device *dev, struct drm_minor **minor, int type);
1640/*@}*/
1641
1642/* PCI section */
1643static __inline__ int drm_pci_device_is_agp(struct drm_device *dev)
1644{
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001645 if (dev->driver->device_is_agp != NULL) {
1646 int err = (*dev->driver->device_is_agp) (dev);
1647
Dave Airliecda17382005-07-10 17:31:26 +10001648 if (err != 2) {
1649 return err;
1650 }
1651 }
1652
1653 return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP);
1654}
1655
Dave Airlie8410ea32010-12-15 03:16:38 +10001656
1657static __inline__ int drm_pci_device_is_pcie(struct drm_device *dev)
Dave Airlieea98a922005-09-11 20:28:11 +10001658{
Dave Airlie8410ea32010-12-15 03:16:38 +10001659 return pci_find_capability(dev->pdev, PCI_CAP_ID_EXP);
Dave Airlieea98a922005-09-11 20:28:11 +10001660}
1661
Linus Torvalds1da177e2005-04-16 15:20:36 -07001662
Dave Airlie8410ea32010-12-15 03:16:38 +10001663extern int drm_pci_init(struct drm_driver *driver, struct pci_driver *pdriver);
1664extern void drm_pci_exit(struct drm_driver *driver, struct pci_driver *pdriver);
1665extern int drm_get_pci_dev(struct pci_dev *pdev,
Jordan Crousedcdb1672010-05-27 13:40:25 -06001666 const struct pci_device_id *ent,
1667 struct drm_driver *driver);
Dave Airlie8410ea32010-12-15 03:16:38 +10001668
1669
1670/* platform section */
1671extern int drm_platform_init(struct drm_driver *driver, struct platform_device *platform_device);
1672extern void drm_platform_exit(struct drm_driver *driver, struct platform_device *platform_device);
1673
1674extern int drm_get_platform_dev(struct platform_device *pdev,
1675 struct drm_driver *driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001676
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001677#endif /* __KERNEL__ */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001678#endif