blob: 63d17ee9eb488c336ad55521f346dc1c2703c4c4 [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/kernel.h>
46#include <linux/miscdevice.h>
47#include <linux/fs.h>
48#include <linux/proc_fs.h>
49#include <linux/init.h>
50#include <linux/file.h>
Jordan Crousedcdb1672010-05-27 13:40:25 -060051#include <linux/platform_device.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070052#include <linux/pci.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070053#include <linux/jiffies.h>
Dave Airlieb05c2382008-03-17 10:24:24 +100054#include <linux/dma-mapping.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070055#include <linux/mm.h>
56#include <linux/cdev.h>
Dave Airlie30e2fb12006-02-02 19:37:46 +110057#include <linux/mutex.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090058#include <linux/slab.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070059#if defined(__alpha__) || defined(__powerpc__)
Dave Airlieb5e89ed2005-09-25 14:28:13 +100060#include <asm/pgtable.h> /* For pte_wrprotect */
Linus Torvalds1da177e2005-04-16 15:20:36 -070061#endif
62#include <asm/io.h>
63#include <asm/mman.h>
64#include <asm/uaccess.h>
65#ifdef CONFIG_MTRR
66#include <asm/mtrr.h>
67#endif
68#if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
69#include <linux/types.h>
70#include <linux/agp_backend.h>
71#endif
72#include <linux/workqueue.h>
73#include <linux/poll.h>
74#include <asm/pgalloc.h>
David Howells19218e42012-10-02 18:01:03 +010075#include <drm/drm.h>
76#include <drm/drm_sarea.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070077
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
Paul Gortmakerde477252011-05-26 13:46:22 -040083struct module;
84
Eric Anholtc153f452007-09-03 12:06:45 +100085struct drm_file;
86struct drm_device;
87
Steffen Trumtraredb37a92012-10-28 18:28:06 +010088struct device_node;
Steffen Trumtrarebc64e42012-11-14 11:22:52 +010089struct videomode;
90
David Howellsa1ce3922012-10-02 18:01:25 +010091#include <drm/drm_os_linux.h>
92#include <drm/drm_hashtab.h>
93#include <drm/drm_mm.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070094
yakui_zhao4fefcb22009-06-02 14:09:47 +080095#define DRM_UT_CORE 0x01
96#define DRM_UT_DRIVER 0x02
97#define DRM_UT_KMS 0x04
Dave Airlie32488772011-11-25 15:21:02 +000098#define DRM_UT_PRIME 0x08
Zhao Yakui87fdff82009-07-20 13:48:06 +080099/*
100 * Three debug levels are defined.
101 * drm_core, drm_driver, drm_kms
102 * drm_core level can be used in the generic drm code. For example:
103 * drm_ioctl, drm_mm, drm_memory
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300104 * The macro definition of DRM_DEBUG is used.
Zhao Yakui87fdff82009-07-20 13:48:06 +0800105 * DRM_DEBUG(fmt, args...)
106 * The debug info by using the DRM_DEBUG can be obtained by adding
107 * the boot option of "drm.debug=1".
108 *
109 * drm_driver level can be used in the specific drm driver. It is used
110 * to add the debug info related with the drm driver. For example:
111 * i915_drv, i915_dma, i915_gem, radeon_drv,
112 * The macro definition of DRM_DEBUG_DRIVER can be used.
113 * DRM_DEBUG_DRIVER(fmt, args...)
114 * The debug info by using the DRM_DEBUG_DRIVER can be obtained by
115 * adding the boot option of "drm.debug=0x02"
116 *
117 * drm_kms level can be used in the KMS code related with specific drm driver.
118 * It is used to add the debug info related with KMS mode. For example:
119 * the connector/crtc ,
120 * The macro definition of DRM_DEBUG_KMS can be used.
121 * DRM_DEBUG_KMS(fmt, args...)
122 * The debug info by using the DRM_DEBUG_KMS can be obtained by
123 * adding the boot option of "drm.debug=0x04"
124 *
125 * If we add the boot option of "drm.debug=0x06", we can get the debug info by
126 * using the DRM_DEBUG_KMS and DRM_DEBUG_DRIVER.
127 * If we add the boot option of "drm.debug=0x05", we can get the debug info by
128 * using the DRM_DEBUG_KMS and DRM_DEBUG.
129 */
yakui_zhao4fefcb22009-06-02 14:09:47 +0800130
Joe Perchesb9075fa2011-10-31 17:11:33 -0700131extern __printf(4, 5)
Joe Perchesbbb0aef52011-04-17 20:35:52 -0700132void drm_ut_debug_printk(unsigned int request_level,
Joe Perchesb9075fa2011-10-31 17:11:33 -0700133 const char *prefix,
134 const char *function_name,
135 const char *format, ...);
136extern __printf(2, 3)
Joe Perches5ad3d882011-04-17 20:35:51 -0700137int drm_err(const char *func, const char *format, ...);
138
Linus Torvalds1da177e2005-04-16 15:20:36 -0700139/***********************************************************************/
140/** \name DRM template customization defaults */
141/*@{*/
142
143/* driver capabilities and requirements mask */
144#define DRIVER_USE_AGP 0x1
145#define DRIVER_REQUIRE_AGP 0x2
146#define DRIVER_USE_MTRR 0x4
147#define DRIVER_PCI_DMA 0x8
148#define DRIVER_SG 0x10
149#define DRIVER_HAVE_DMA 0x20
150#define DRIVER_HAVE_IRQ 0x40
151#define DRIVER_IRQ_SHARED 0x80
Dave Airlieaf6061a2008-05-07 12:15:39 +1000152#define DRIVER_IRQ_VBL 0x100
Linus Torvalds1da177e2005-04-16 15:20:36 -0700153#define DRIVER_DMA_QUEUE 0x200
Dave Airlieb84397d62005-07-10 14:46:12 +1000154#define DRIVER_FB_DMA 0x400
Dave Airlieaf6061a2008-05-07 12:15:39 +1000155#define DRIVER_IRQ_VBL2 0x800
Eric Anholt673a3942008-07-30 12:06:12 -0700156#define DRIVER_GEM 0x1000
Dave Airlief453ba02008-11-07 14:05:41 -0800157#define DRIVER_MODESET 0x2000
Dave Airlie32488772011-11-25 15:21:02 +0000158#define DRIVER_PRIME 0x4000
Dave Airlie8410ea32010-12-15 03:16:38 +1000159
160#define DRIVER_BUS_PCI 0x1
161#define DRIVER_BUS_PLATFORM 0x2
162#define DRIVER_BUS_USB 0x3
Linus Torvalds1da177e2005-04-16 15:20:36 -0700163
164/***********************************************************************/
165/** \name Begin the DRM... */
166/*@{*/
167
168#define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then
169 also include looping detection. */
170
Thomas Hellstrom8669cbc2006-08-07 22:22:10 +1000171#define DRM_MAGIC_HASH_ORDER 4 /**< Size of key hash table. Must be power of 2. */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700172#define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */
173#define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */
174#define DRM_LOOPING_LIMIT 5000000
Linus Torvalds1da177e2005-04-16 15:20:36 -0700175#define DRM_TIME_SLICE (HZ/20) /**< Time slice for GLXContexts */
176#define DRM_LOCK_SLICE 1 /**< Time slice for lock, in jiffies */
177
178#define DRM_FLAG_DEBUG 0x01
179
Linus Torvalds1da177e2005-04-16 15:20:36 -0700180#define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
Thomas Hellstrom8d153f72006-08-07 22:36:47 +1000181#define DRM_MAP_HASH_OFFSET 0x10000000
Linus Torvalds1da177e2005-04-16 15:20:36 -0700182
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000183/*@}*/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700184
185/***********************************************************************/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700186/** \name Macros to make printk easier */
187/*@{*/
188
189/**
190 * Error output.
191 *
192 * \param fmt printf() like format string.
193 * \param arg arguments
194 */
Joe Perches5ad3d882011-04-17 20:35:51 -0700195#define DRM_ERROR(fmt, ...) \
196 drm_err(__func__, fmt, ##__VA_ARGS__)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700197
Joe Perches5ad3d882011-04-17 20:35:51 -0700198#define DRM_INFO(fmt, ...) \
199 printk(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700200
201/**
202 * Debug output.
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000203 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700204 * \param fmt printf() like format string.
205 * \param arg arguments
206 */
207#if DRM_DEBUG_CODE
yakui_zhao4fefcb22009-06-02 14:09:47 +0800208#define DRM_DEBUG(fmt, args...) \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700209 do { \
yakui_zhao4fefcb22009-06-02 14:09:47 +0800210 drm_ut_debug_printk(DRM_UT_CORE, DRM_NAME, \
211 __func__, fmt, ##args); \
212 } while (0)
213
Zhao Yakui8a4c47f2009-07-20 13:48:04 +0800214#define DRM_DEBUG_DRIVER(fmt, args...) \
yakui_zhao4fefcb22009-06-02 14:09:47 +0800215 do { \
Zhao Yakui8a4c47f2009-07-20 13:48:04 +0800216 drm_ut_debug_printk(DRM_UT_DRIVER, DRM_NAME, \
yakui_zhao4fefcb22009-06-02 14:09:47 +0800217 __func__, fmt, ##args); \
218 } while (0)
Zhao Yakui8a4c47f2009-07-20 13:48:04 +0800219#define DRM_DEBUG_KMS(fmt, args...) \
yakui_zhao4fefcb22009-06-02 14:09:47 +0800220 do { \
Zhao Yakui8a4c47f2009-07-20 13:48:04 +0800221 drm_ut_debug_printk(DRM_UT_KMS, DRM_NAME, \
yakui_zhao4fefcb22009-06-02 14:09:47 +0800222 __func__, fmt, ##args); \
223 } while (0)
Dave Airlie32488772011-11-25 15:21:02 +0000224#define DRM_DEBUG_PRIME(fmt, args...) \
225 do { \
226 drm_ut_debug_printk(DRM_UT_PRIME, DRM_NAME, \
227 __func__, fmt, ##args); \
228 } while (0)
yakui_zhao4fefcb22009-06-02 14:09:47 +0800229#define DRM_LOG(fmt, args...) \
230 do { \
231 drm_ut_debug_printk(DRM_UT_CORE, NULL, \
232 NULL, fmt, ##args); \
233 } while (0)
234#define DRM_LOG_KMS(fmt, args...) \
235 do { \
236 drm_ut_debug_printk(DRM_UT_KMS, NULL, \
237 NULL, fmt, ##args); \
238 } while (0)
239#define DRM_LOG_MODE(fmt, args...) \
240 do { \
241 drm_ut_debug_printk(DRM_UT_MODE, NULL, \
242 NULL, fmt, ##args); \
243 } while (0)
244#define DRM_LOG_DRIVER(fmt, args...) \
245 do { \
246 drm_ut_debug_printk(DRM_UT_DRIVER, NULL, \
247 NULL, fmt, ##args); \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700248 } while (0)
249#else
Zhao Yakui8a4c47f2009-07-20 13:48:04 +0800250#define DRM_DEBUG_DRIVER(fmt, args...) do { } while (0)
251#define DRM_DEBUG_KMS(fmt, args...) do { } while (0)
Dave Airlie32488772011-11-25 15:21:02 +0000252#define DRM_DEBUG_PRIME(fmt, args...) do { } while (0)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700253#define DRM_DEBUG(fmt, arg...) do { } while (0)
yakui_zhao4fefcb22009-06-02 14:09:47 +0800254#define DRM_LOG(fmt, arg...) do { } while (0)
255#define DRM_LOG_KMS(fmt, args...) do { } while (0)
256#define DRM_LOG_MODE(fmt, arg...) do { } while (0)
257#define DRM_LOG_DRIVER(fmt, arg...) do { } while (0)
258
Linus Torvalds1da177e2005-04-16 15:20:36 -0700259#endif
260
Linus Torvalds1da177e2005-04-16 15:20:36 -0700261/*@}*/
262
Linus Torvalds1da177e2005-04-16 15:20:36 -0700263/***********************************************************************/
264/** \name Internal types and structures */
265/*@{*/
266
Dave Airlie99a26572005-09-25 13:25:41 +1000267#define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700268
269#define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
270#define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700271
272#define DRM_IF_VERSION(maj, min) (maj << 16 | min)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700273
274/**
275 * Test that the hardware lock is held by the caller, returning otherwise.
276 *
277 * \param dev DRM device.
278 * \param filp file pointer of the caller.
279 */
Roel Kluindcae3622009-06-10 12:43:48 -0700280#define LOCK_TEST_WITH_RETURN( dev, _file_priv ) \
281do { \
282 if (!_DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock) || \
283 _file_priv->master->lock.file_priv != _file_priv) { \
Eric Anholtc153f452007-09-03 12:06:45 +1000284 DRM_ERROR( "%s called without lock held, held %d owner %p %p\n",\
Roel Kluindcae3622009-06-10 12:43:48 -0700285 __func__, _DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock),\
286 _file_priv->master->lock.file_priv, _file_priv); \
287 return -EINVAL; \
288 } \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700289} while (0)
290
291/**
Linus Torvalds1da177e2005-04-16 15:20:36 -0700292 * Ioctl function type.
293 *
294 * \param inode device inode.
Eric Anholt6c340ea2007-08-25 20:23:09 +1000295 * \param file_priv DRM file private pointer.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700296 * \param cmd command.
297 * \param arg argument.
298 */
Eric Anholtc153f452007-09-03 12:06:45 +1000299typedef int drm_ioctl_t(struct drm_device *dev, void *data,
300 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700301
Dave Airlie9a186642005-06-23 21:29:18 +1000302typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
303 unsigned long arg);
304
Kristian Høgsberg1a959162009-12-02 12:13:48 -0500305#define DRM_IOCTL_NR(n) _IOC_NR(n)
306#define DRM_MAJOR 226
307
Dave Airliea7a2cc32006-01-02 13:54:04 +1100308#define DRM_AUTH 0x1
309#define DRM_MASTER 0x2
310#define DRM_ROOT_ONLY 0x4
Dave Airlief453ba02008-11-07 14:05:41 -0800311#define DRM_CONTROL_ALLOW 0x8
Arnd Bergmanned8b6702009-12-16 22:17:09 +0000312#define DRM_UNLOCKED 0x10
Dave Airliea7a2cc32006-01-02 13:54:04 +1100313
Eric Anholtc153f452007-09-03 12:06:45 +1000314struct drm_ioctl_desc {
315 unsigned int cmd;
Dave Airliea7a2cc32006-01-02 13:54:04 +1100316 int flags;
Richard Kennedyc972d752009-03-18 17:26:44 +0000317 drm_ioctl_t *func;
Dave Airlie1b2f1482010-08-14 20:20:34 +1000318 unsigned int cmd_drv;
Chris Cumminsb9434d02013-05-09 14:20:40 +0100319 const char *name;
Eric Anholtc153f452007-09-03 12:06:45 +1000320};
321
322/**
323 * Creates a driver or general drm_ioctl_desc array entry for the given
324 * ioctl, for use by drm_ioctl().
325 */
Dave Airlie1b2f1482010-08-14 20:20:34 +1000326
327#define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \
Chris Cumminsb9434d02013-05-09 14:20:40 +0100328 [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl, .name = #ioctl}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700329
Dave Airlie8fc2fdf2007-07-11 16:21:47 +1000330struct drm_magic_entry {
Thomas Hellstrom8669cbc2006-08-07 22:22:10 +1000331 struct list_head head;
Dave Airliee0be4282007-07-12 10:26:44 +1000332 struct drm_hash_item hash_item;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000333 struct drm_file *priv;
Dave Airlie8fc2fdf2007-07-11 16:21:47 +1000334};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700335
Dave Airlie8fc2fdf2007-07-11 16:21:47 +1000336struct drm_vma_entry {
Dave Airliebd1b3312007-05-26 05:01:51 +1000337 struct list_head head;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700338 struct vm_area_struct *vma;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000339 pid_t pid;
Dave Airlie8fc2fdf2007-07-11 16:21:47 +1000340};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700341
342/**
343 * DMA buffer.
344 */
Dave Airlie056219e2007-07-11 16:17:42 +1000345struct drm_buf {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000346 int idx; /**< Index into master buflist */
347 int total; /**< Buffer size */
348 int order; /**< log-base-2(total) */
349 int used; /**< Amount of buffer in use (for DMA) */
350 unsigned long offset; /**< Byte offset (used internally) */
351 void *address; /**< Address of buffer */
352 unsigned long bus_address; /**< Bus address of buffer */
353 struct drm_buf *next; /**< Kernel-only: used for free list */
354 __volatile__ int waiting; /**< On kernel DMA queue */
355 __volatile__ int pending; /**< On hardware DMA queue */
Eric Anholt6c340ea2007-08-25 20:23:09 +1000356 struct drm_file *file_priv; /**< Private of holding file descr */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000357 int context; /**< Kernel queue for this buffer */
358 int while_locked; /**< Dispatch this buffer while locked */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700359 enum {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000360 DRM_LIST_NONE = 0,
361 DRM_LIST_FREE = 1,
362 DRM_LIST_WAIT = 2,
363 DRM_LIST_PEND = 3,
364 DRM_LIST_PRIO = 4,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700365 DRM_LIST_RECLAIM = 5
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000366 } list; /**< Which list we're on */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700367
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000368 int dev_priv_size; /**< Size of buffer private storage */
369 void *dev_private; /**< Per-buffer private storage */
Dave Airlie056219e2007-07-11 16:17:42 +1000370};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700371
Linus Torvalds1da177e2005-04-16 15:20:36 -0700372/** bufs is one longer than it has to be */
Dave Airliecdd55a22007-07-11 16:32:08 +1000373struct drm_waitlist {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000374 int count; /**< Number of possible buffers */
Dave Airlie056219e2007-07-11 16:17:42 +1000375 struct drm_buf **bufs; /**< List of pointers to buffers */
376 struct drm_buf **rp; /**< Read pointer */
377 struct drm_buf **wp; /**< Write pointer */
378 struct drm_buf **end; /**< End pointer */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000379 spinlock_t read_lock;
380 spinlock_t write_lock;
Dave Airliecdd55a22007-07-11 16:32:08 +1000381};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700382
Dave Airliecdd55a22007-07-11 16:32:08 +1000383struct drm_freelist {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000384 int initialized; /**< Freelist in use */
385 atomic_t count; /**< Number of free buffers */
Dave Airlie056219e2007-07-11 16:17:42 +1000386 struct drm_buf *next; /**< End pointer */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700387
388 wait_queue_head_t waiting; /**< Processes waiting on free bufs */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000389 int low_mark; /**< Low water mark */
390 int high_mark; /**< High water mark */
391 atomic_t wfh; /**< If waiting for high mark */
392 spinlock_t lock;
Dave Airliecdd55a22007-07-11 16:32:08 +1000393};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700394
Dave Airlieddf19b92006-03-19 18:56:12 +1100395typedef struct drm_dma_handle {
396 dma_addr_t busaddr;
397 void *vaddr;
398 size_t size;
399} drm_dma_handle_t;
400
Linus Torvalds1da177e2005-04-16 15:20:36 -0700401/**
402 * Buffer entry. There is one of this for each buffer size order.
403 */
Dave Airliecdd55a22007-07-11 16:32:08 +1000404struct drm_buf_entry {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000405 int buf_size; /**< size */
406 int buf_count; /**< number of buffers */
Dave Airlie056219e2007-07-11 16:17:42 +1000407 struct drm_buf *buflist; /**< buffer list */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000408 int seg_count;
409 int page_order;
Dave Airliecdd55a22007-07-11 16:32:08 +1000410 struct drm_dma_handle **seglist;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700411
Dave Airliecdd55a22007-07-11 16:32:08 +1000412 struct drm_freelist freelist;
413};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700414
Kristian Høgsbergc9a9c5e2009-09-12 04:33:34 +1000415/* Event queued up for userspace to read */
416struct drm_pending_event {
417 struct drm_event *event;
418 struct list_head link;
419 struct drm_file *file_priv;
Jesse Barnesb9c2c9a2010-07-01 16:48:09 -0700420 pid_t pid; /* pid of requester, no guarantee it's valid by the time
421 we deliver the event, for tracing only */
Kristian Høgsbergc9a9c5e2009-09-12 04:33:34 +1000422 void (*destroy)(struct drm_pending_event *event);
423};
424
Dave Airlie32488772011-11-25 15:21:02 +0000425/* initial implementaton using a linked list - todo hashtab */
426struct drm_prime_file_private {
427 struct list_head head;
428 struct mutex lock;
429};
430
Linus Torvalds1da177e2005-04-16 15:20:36 -0700431/** File private data */
Dave Airlie84b1fd12007-07-11 15:53:27 +1000432struct drm_file {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000433 int authenticated;
Eric W. Biederman5fce5e02012-02-07 16:47:26 -0800434 struct pid *pid;
435 kuid_t uid;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000436 drm_magic_t magic;
437 unsigned long ioctl_count;
Dave Airliebd1b3312007-05-26 05:01:51 +1000438 struct list_head lhead;
Dave Airlie2c14f282008-04-21 16:47:32 +1000439 struct drm_minor *minor;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000440 unsigned long lock_count;
Dave Airlie7c1c2872008-11-28 14:22:24 +1000441
Eric Anholt673a3942008-07-30 12:06:12 -0700442 /** Mapping of mm object handles to object pointers. */
443 struct idr object_idr;
444 /** Lock for synchronization of access to object_idr. */
445 spinlock_t table_lock;
Dave Airlie7c1c2872008-11-28 14:22:24 +1000446
Eric Anholt6c340ea2007-08-25 20:23:09 +1000447 struct file *filp;
Dave Airlie8562b3f2007-11-05 12:37:41 +1000448 void *driver_priv;
Dave Airlie7c1c2872008-11-28 14:22:24 +1000449
450 int is_master; /* this file private is a master for a minor */
451 struct drm_master *master; /* master this node is currently associated with
452 N.B. not always minor->master */
Daniel Vetter4b096ac2012-12-10 21:19:18 +0100453
454 /**
455 * fbs - List of framebuffers associated with this file.
456 *
457 * Protected by fbs_lock. Note that the fbs list holds a reference on
458 * the fb object to prevent it from untimely disappearing.
459 */
Dave Airlief453ba02008-11-07 14:05:41 -0800460 struct list_head fbs;
Daniel Vetter4b096ac2012-12-10 21:19:18 +0100461 struct mutex fbs_lock;
Kristian Høgsbergc9a9c5e2009-09-12 04:33:34 +1000462
463 wait_queue_head_t event_wait;
464 struct list_head event_list;
465 int event_space;
Dave Airlie32488772011-11-25 15:21:02 +0000466
467 struct drm_prime_file_private prime;
Dave Airlie84b1fd12007-07-11 15:53:27 +1000468};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700469
470/** Wait queue */
Dave Airliecdd55a22007-07-11 16:32:08 +1000471struct drm_queue {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000472 atomic_t use_count; /**< Outstanding uses (+1) */
473 atomic_t finalization; /**< Finalization in progress */
474 atomic_t block_count; /**< Count of processes waiting */
475 atomic_t block_read; /**< Queue blocked for reads */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700476 wait_queue_head_t read_queue; /**< Processes waiting on block_read */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000477 atomic_t block_write; /**< Queue blocked for writes */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700478 wait_queue_head_t write_queue; /**< Processes waiting on block_write */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000479 atomic_t total_queued; /**< Total queued statistic */
480 atomic_t total_flushed; /**< Total flushes statistic */
481 atomic_t total_locks; /**< Total locks statistics */
Dave Airliec60ce622007-07-11 15:27:12 +1000482 enum drm_ctx_flags flags; /**< Context preserving and 2D-only */
Dave Airliecdd55a22007-07-11 16:32:08 +1000483 struct drm_waitlist waitlist; /**< Pending buffers */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700484 wait_queue_head_t flush_queue; /**< Processes waiting until flush */
Dave Airliecdd55a22007-07-11 16:32:08 +1000485};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700486
487/**
488 * Lock data.
489 */
Dave Airlie55910512007-07-11 16:53:40 +1000490struct drm_lock_data {
Dave Airliec60ce622007-07-11 15:27:12 +1000491 struct drm_hw_lock *hw_lock; /**< Hardware lock */
Dave Airlie8562b3f2007-11-05 12:37:41 +1000492 /** Private of lock holder's file (NULL=kernel) */
493 struct drm_file *file_priv;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700494 wait_queue_head_t lock_queue; /**< Queue of blocked processes */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000495 unsigned long lock_time; /**< Time of last lock in jiffies */
Thomas Hellstrom040ac322007-03-23 13:28:33 +1100496 spinlock_t spinlock;
497 uint32_t kernel_waiters;
498 uint32_t user_waiters;
499 int idle_has_lock;
Dave Airlie55910512007-07-11 16:53:40 +1000500};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700501
502/**
503 * DMA data.
504 */
Dave Airliecdd55a22007-07-11 16:32:08 +1000505struct drm_device_dma {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700506
Dave Airliecdd55a22007-07-11 16:32:08 +1000507 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000508 int buf_count; /**< total number of buffers */
Dave Airlie056219e2007-07-11 16:17:42 +1000509 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000510 int seg_count;
511 int page_count; /**< number of pages */
512 unsigned long *pagelist; /**< page list */
513 unsigned long byte_count;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700514 enum {
515 _DRM_DMA_USE_AGP = 0x01,
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000516 _DRM_DMA_USE_SG = 0x02,
George Sapountzis3417f332006-10-24 12:03:04 -0700517 _DRM_DMA_USE_FB = 0x04,
518 _DRM_DMA_USE_PCI_RO = 0x08
Linus Torvalds1da177e2005-04-16 15:20:36 -0700519 } flags;
520
Dave Airliecdd55a22007-07-11 16:32:08 +1000521};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700522
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000523/**
Linus Torvalds1da177e2005-04-16 15:20:36 -0700524 * AGP memory entry. Stored as a doubly linked list.
525 */
Dave Airlie55910512007-07-11 16:53:40 +1000526struct drm_agp_mem {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000527 unsigned long handle; /**< handle */
528 DRM_AGP_MEM *memory;
529 unsigned long bound; /**< address */
530 int pages;
Dave Airliebd1b3312007-05-26 05:01:51 +1000531 struct list_head head;
Dave Airlie55910512007-07-11 16:53:40 +1000532};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700533
534/**
535 * AGP data.
536 *
537 * \sa drm_agp_init() and drm_device::agp.
538 */
Dave Airlie55910512007-07-11 16:53:40 +1000539struct drm_agp_head {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000540 DRM_AGP_KERN agp_info; /**< AGP device information */
Dave Airliebd1b3312007-05-26 05:01:51 +1000541 struct list_head memory;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000542 unsigned long mode; /**< AGP mode */
543 struct agp_bridge_data *bridge;
544 int enabled; /**< whether the AGP bus as been enabled */
545 int acquired; /**< whether the AGP device has been acquired */
546 unsigned long base;
547 int agp_mtrr;
548 int cant_use_aperture;
549 unsigned long page_mask;
Dave Airlie55910512007-07-11 16:53:40 +1000550};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700551
552/**
553 * Scatter-gather memory.
554 */
Dave Airlie55910512007-07-11 16:53:40 +1000555struct drm_sg_mem {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000556 unsigned long handle;
557 void *virtual;
558 int pages;
559 struct page **pagelist;
560 dma_addr_t *busaddr;
Dave Airlie55910512007-07-11 16:53:40 +1000561};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700562
Dave Airlie55910512007-07-11 16:53:40 +1000563struct drm_sigdata {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000564 int context;
Dave Airliec60ce622007-07-11 15:27:12 +1000565 struct drm_hw_lock *lock;
Dave Airlie55910512007-07-11 16:53:40 +1000566};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700567
Dave Airlie8562b3f2007-11-05 12:37:41 +1000568
Linus Torvalds1da177e2005-04-16 15:20:36 -0700569/**
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +1100570 * Kernel side of a mapping
571 */
572struct drm_local_map {
Benjamin Herrenschmidt41c2e752009-02-02 16:55:47 +1100573 resource_size_t offset; /**< Requested physical address (0 for SAREA)*/
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +1100574 unsigned long size; /**< Requested physical size (bytes) */
575 enum drm_map_type type; /**< Type of memory to map */
576 enum drm_map_flags flags; /**< Flags */
577 void *handle; /**< User-space: "Handle" to pass to mmap() */
578 /**< Kernel-space: kernel-virtual address */
579 int mtrr; /**< MTRR slot used */
580};
581
582typedef struct drm_local_map drm_local_map_t;
583
584/**
Linus Torvalds1da177e2005-04-16 15:20:36 -0700585 * Mappings list
586 */
Dave Airlie55910512007-07-11 16:53:40 +1000587struct drm_map_list {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000588 struct list_head head; /**< list head */
Dave Airliee0be4282007-07-12 10:26:44 +1000589 struct drm_hash_item hash;
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +1100590 struct drm_local_map *map; /**< mapping */
Dave Airlie8562b3f2007-11-05 12:37:41 +1000591 uint64_t user_token;
Dave Airlie7c1c2872008-11-28 14:22:24 +1000592 struct drm_master *master;
Jesse Barnesa2c0a972008-11-05 10:31:53 -0800593 struct drm_mm_node *file_offset_node; /**< fake offset */
Dave Airlie55910512007-07-11 16:53:40 +1000594};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700595
Linus Torvalds1da177e2005-04-16 15:20:36 -0700596/**
597 * Context handle list
598 */
Dave Airlie55910512007-07-11 16:53:40 +1000599struct drm_ctx_list {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000600 struct list_head head; /**< list head */
601 drm_context_t handle; /**< context handle */
Dave Airlie84b1fd12007-07-11 15:53:27 +1000602 struct drm_file *tag; /**< associated fd private data */
Dave Airlie55910512007-07-11 16:53:40 +1000603};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700604
Dave Airlieea98a922005-09-11 20:28:11 +1000605/* location of GART table */
606#define DRM_ATI_GART_MAIN 1
607#define DRM_ATI_GART_FB 2
608
Dave Airlief2b04cd2007-05-08 15:19:23 +1000609#define DRM_ATI_GART_PCI 1
610#define DRM_ATI_GART_PCIE 2
611#define DRM_ATI_GART_IGP 3
612
Dave Airlie55910512007-07-11 16:53:40 +1000613struct drm_ati_pcigart_info {
Dave Airlieea98a922005-09-11 20:28:11 +1000614 int gart_table_location;
Dave Airlief2b04cd2007-05-08 15:19:23 +1000615 int gart_reg_if;
Dave Airlief26c4732006-01-02 17:18:39 +1100616 void *addr;
Dave Airlieea98a922005-09-11 20:28:11 +1000617 dma_addr_t bus_addr;
Dave Airlieb05c2382008-03-17 10:24:24 +1000618 dma_addr_t table_mask;
619 struct drm_dma_handle *table_handle;
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +1100620 struct drm_local_map mapping;
Dave Airlief2b04cd2007-05-08 15:19:23 +1000621 int table_size;
Dave Airlie55910512007-07-11 16:53:40 +1000622};
Dave Airlieea98a922005-09-11 20:28:11 +1000623
Linus Torvalds1da177e2005-04-16 15:20:36 -0700624/**
Jesse Barnesa2c0a972008-11-05 10:31:53 -0800625 * GEM specific mm private for tracking GEM objects
626 */
627struct drm_gem_mm {
628 struct drm_mm offset_manager; /**< Offset mgmt for buffer objects */
629 struct drm_open_hash offset_hash; /**< User token hash table for maps */
630};
631
632/**
Eric Anholt673a3942008-07-30 12:06:12 -0700633 * This structure defines the drm_mm memory object, which will be used by the
634 * DRM for its buffer objects.
635 */
636struct drm_gem_object {
637 /** Reference count of this object */
638 struct kref refcount;
639
640 /** Handle count of this object. Each handle also holds a reference */
Dave Airlie29d08b32010-09-27 16:17:17 +1000641 atomic_t handle_count; /* number of handles on this object */
Eric Anholt673a3942008-07-30 12:06:12 -0700642
643 /** Related drm device */
644 struct drm_device *dev;
645
646 /** File representing the shmem storage */
647 struct file *filp;
648
Jesse Barnesa2c0a972008-11-05 10:31:53 -0800649 /* Mapping info for this object */
650 struct drm_map_list map_list;
651
Eric Anholt673a3942008-07-30 12:06:12 -0700652 /**
653 * Size of the object, in bytes. Immutable over the object's
654 * lifetime.
655 */
656 size_t size;
657
658 /**
659 * Global name for this object, starts at 1. 0 means unnamed.
660 * Access is covered by the object_name_lock in the related drm_device
661 */
662 int name;
663
664 /**
665 * Memory domains. These monitor which caches contain read/write data
666 * related to the object. When transitioning from one set of domains
667 * to another, the driver is called to ensure that caches are suitably
668 * flushed and invalidated
669 */
670 uint32_t read_domains;
671 uint32_t write_domain;
672
673 /**
674 * While validating an exec operation, the
675 * new read/write domain values are computed here.
676 * They will be transferred to the above values
677 * at the point that any cache flushing occurs
678 */
679 uint32_t pending_read_domains;
680 uint32_t pending_write_domain;
681
682 void *driver_private;
Dave Airlie32488772011-11-25 15:21:02 +0000683
684 /* dma buf exported from this GEM object */
685 struct dma_buf *export_dma_buf;
686
687 /* dma buf attachment backing this object */
688 struct dma_buf_attachment *import_attach;
Eric Anholt673a3942008-07-30 12:06:12 -0700689};
690
David Howellsa1ce3922012-10-02 18:01:25 +0100691#include <drm/drm_crtc.h>
Dave Airlief453ba02008-11-07 14:05:41 -0800692
Dave Airlie7c1c2872008-11-28 14:22:24 +1000693/* per-master structure */
694struct drm_master {
695
696 struct kref refcount; /* refcount for this master */
697
698 struct list_head head; /**< each minor contains a list of masters */
699 struct drm_minor *minor; /**< link back to minor we are a master for */
700
701 char *unique; /**< Unique identifier: e.g., busid */
702 int unique_len; /**< Length of unique field */
Vegard Nossum1147c9c2008-12-02 13:38:47 +1000703 int unique_size; /**< amount allocated */
Dave Airlie7c1c2872008-11-28 14:22:24 +1000704
705 int blocked; /**< Blocked due to VC switch? */
706
707 /** \name Authentication */
708 /*@{ */
709 struct drm_open_hash magiclist;
710 struct list_head magicfree;
711 /*@} */
712
713 struct drm_lock_data lock; /**< Information on hardware lock */
714
715 void *driver_priv; /**< Private structure for driver to use */
716};
717
Mario Kleiner27641c32010-10-23 04:20:23 +0200718/* Size of ringbuffer for vblank timestamps. Just double-buffer
719 * in initial implementation.
720 */
721#define DRM_VBLANKTIME_RBSIZE 2
722
723/* Flags and return codes for get_vblank_timestamp() driver function. */
724#define DRM_CALLED_FROM_VBLIRQ 1
725#define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0)
726#define DRM_VBLANKTIME_INVBL (1 << 1)
727
728/* get_scanout_position() return flags */
729#define DRM_SCANOUTPOS_VALID (1 << 0)
730#define DRM_SCANOUTPOS_INVBL (1 << 1)
731#define DRM_SCANOUTPOS_ACCURATE (1 << 2)
732
Dave Airlie8410ea32010-12-15 03:16:38 +1000733struct drm_bus {
734 int bus_type;
735 int (*get_irq)(struct drm_device *dev);
736 const char *(*get_name)(struct drm_device *dev);
737 int (*set_busid)(struct drm_device *dev, struct drm_master *master);
738 int (*set_unique)(struct drm_device *dev, struct drm_master *master,
739 struct drm_unique *unique);
740 int (*irq_by_busid)(struct drm_device *dev, struct drm_irq_busid *p);
741 /* hooks that are for PCI */
742 int (*agp_init)(struct drm_device *dev);
743
744};
745
Eric Anholt673a3942008-07-30 12:06:12 -0700746/**
Linus Torvalds1da177e2005-04-16 15:20:36 -0700747 * DRM driver structure. This structure represent the common code for
748 * a family of cards. There will one drm_device for each card present
749 * in this family
750 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700751struct drm_driver {
Dave Airlie22eae942005-11-10 22:16:34 +1100752 int (*load) (struct drm_device *, unsigned long flags);
753 int (*firstopen) (struct drm_device *);
Dave Airlie84b1fd12007-07-11 15:53:27 +1000754 int (*open) (struct drm_device *, struct drm_file *);
Eric Anholt6c340ea2007-08-25 20:23:09 +1000755 void (*preclose) (struct drm_device *, struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +1000756 void (*postclose) (struct drm_device *, struct drm_file *);
Dave Airlie22eae942005-11-10 22:16:34 +1100757 void (*lastclose) (struct drm_device *);
758 int (*unload) (struct drm_device *);
Dave Airlieb932ccb2008-02-20 10:02:20 +1000759 int (*suspend) (struct drm_device *, pm_message_t state);
Jesse Barnese8b962b2007-11-22 14:02:38 +1000760 int (*resume) (struct drm_device *);
Eric Anholtc153f452007-09-03 12:06:45 +1000761 int (*dma_ioctl) (struct drm_device *dev, void *data, struct drm_file *file_priv);
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000762 int (*dma_quiescent) (struct drm_device *);
Dave Airlie84b1fd12007-07-11 15:53:27 +1000763 int (*context_dtor) (struct drm_device *dev, int context);
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000764
Dave Airliecda17382005-07-10 17:31:26 +1000765 /**
Jesse Barnes0a3e67a2008-09-30 12:14:26 -0700766 * get_vblank_counter - get raw hardware vblank counter
767 * @dev: DRM device
768 * @crtc: counter to fetch
769 *
Laurent Pinchart3b02ab82012-05-17 13:27:20 +0200770 * Driver callback for fetching a raw hardware vblank counter for @crtc.
771 * If a device doesn't have a hardware counter, the driver can simply
772 * return the value of drm_vblank_count. The DRM core will account for
773 * missed vblank events while interrupts where disabled based on system
774 * timestamps.
Jesse Barnes0a3e67a2008-09-30 12:14:26 -0700775 *
776 * Wraparound handling and loss of events due to modesetting is dealt
777 * with in the DRM core code.
778 *
779 * RETURNS
780 * Raw vblank counter value.
781 */
782 u32 (*get_vblank_counter) (struct drm_device *dev, int crtc);
783
784 /**
785 * enable_vblank - enable vblank interrupt events
786 * @dev: DRM device
787 * @crtc: which irq to enable
788 *
789 * Enable vblank interrupts for @crtc. If the device doesn't have
790 * a hardware vblank counter, this routine should be a no-op, since
791 * interrupts will have to stay on to keep the count accurate.
792 *
793 * RETURNS
794 * Zero on success, appropriate errno if the given @crtc's vblank
795 * interrupt cannot be enabled.
796 */
797 int (*enable_vblank) (struct drm_device *dev, int crtc);
798
799 /**
800 * disable_vblank - disable vblank interrupt events
801 * @dev: DRM device
802 * @crtc: which irq to enable
803 *
804 * Disable vblank interrupts for @crtc. If the device doesn't have
805 * a hardware vblank counter, this routine should be a no-op, since
806 * interrupts will have to stay on to keep the count accurate.
807 */
808 void (*disable_vblank) (struct drm_device *dev, int crtc);
809
810 /**
Dave Airliecda17382005-07-10 17:31:26 +1000811 * Called by \c drm_device_is_agp. Typically used to determine if a
812 * card is really attached to AGP or not.
813 *
814 * \param dev DRM device handle
815 *
816 * \returns
817 * One of three values is returned depending on whether or not the
818 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
819 * (return of 1), or may or may not be AGP (return of 2).
820 */
Dave Airlie84b1fd12007-07-11 15:53:27 +1000821 int (*device_is_agp) (struct drm_device *dev);
Dave Airliecda17382005-07-10 17:31:26 +1000822
Mario Kleiner27641c32010-10-23 04:20:23 +0200823 /**
824 * Called by vblank timestamping code.
825 *
826 * Return the current display scanout position from a crtc.
827 *
828 * \param dev DRM device.
829 * \param crtc Id of the crtc to query.
830 * \param *vpos Target location for current vertical scanout position.
831 * \param *hpos Target location for current horizontal scanout position.
832 *
833 * Returns vpos as a positive number while in active scanout area.
834 * Returns vpos as a negative number inside vblank, counting the number
835 * of scanlines to go until end of vblank, e.g., -1 means "one scanline
836 * until start of active scanout / end of vblank."
837 *
838 * \return Flags, or'ed together as follows:
839 *
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300840 * DRM_SCANOUTPOS_VALID = Query successful.
Mario Kleiner27641c32010-10-23 04:20:23 +0200841 * DRM_SCANOUTPOS_INVBL = Inside vblank.
842 * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of
843 * this flag means that returned position may be offset by a constant
844 * but unknown small number of scanlines wrt. real scanout position.
845 *
846 */
847 int (*get_scanout_position) (struct drm_device *dev, int crtc,
848 int *vpos, int *hpos);
849
850 /**
851 * Called by \c drm_get_last_vbltimestamp. Should return a precise
852 * timestamp when the most recent VBLANK interval ended or will end.
853 *
854 * Specifically, the timestamp in @vblank_time should correspond as
855 * closely as possible to the time when the first video scanline of
856 * the video frame after the end of VBLANK will start scanning out,
Justin P. Mattock42b2aa82011-11-28 20:31:00 -0800857 * the time immediately after end of the VBLANK interval. If the
Mario Kleiner27641c32010-10-23 04:20:23 +0200858 * @crtc is currently inside VBLANK, this will be a time in the future.
859 * If the @crtc is currently scanning out a frame, this will be the
860 * past start time of the current scanout. This is meant to adhere
861 * to the OpenML OML_sync_control extension specification.
862 *
863 * \param dev dev DRM device handle.
864 * \param crtc crtc for which timestamp should be returned.
865 * \param *max_error Maximum allowable timestamp error in nanoseconds.
866 * Implementation should strive to provide timestamp
867 * with an error of at most *max_error nanoseconds.
868 * Returns true upper bound on error for timestamp.
869 * \param *vblank_time Target location for returned vblank timestamp.
870 * \param flags 0 = Defaults, no special treatment needed.
871 * \param DRM_CALLED_FROM_VBLIRQ = Function is called from vblank
872 * irq handler. Some drivers need to apply some workarounds
873 * for gpu-specific vblank irq quirks if flag is set.
874 *
875 * \returns
876 * Zero if timestamping isn't supported in current display mode or a
877 * negative number on failure. A positive status code on success,
878 * which describes how the vblank_time timestamp was computed.
879 */
880 int (*get_vblank_timestamp) (struct drm_device *dev, int crtc,
881 int *max_error,
882 struct timeval *vblank_time,
883 unsigned flags);
884
Linus Torvalds1da177e2005-04-16 15:20:36 -0700885 /* these have to be filled in */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000886
Dave Airlie22eae942005-11-10 22:16:34 +1100887 irqreturn_t(*irq_handler) (DRM_IRQ_ARGS);
Dave Airlie84b1fd12007-07-11 15:53:27 +1000888 void (*irq_preinstall) (struct drm_device *dev);
Jesse Barnes0a3e67a2008-09-30 12:14:26 -0700889 int (*irq_postinstall) (struct drm_device *dev);
Dave Airlie84b1fd12007-07-11 15:53:27 +1000890 void (*irq_uninstall) (struct drm_device *dev);
Dave Airlie84b1fd12007-07-11 15:53:27 +1000891 void (*set_version) (struct drm_device *dev,
Dave Airliec60ce622007-07-11 15:27:12 +1000892 struct drm_set_version *sv);
Dave Airlie22eae942005-11-10 22:16:34 +1100893
Dave Airlie7c1c2872008-11-28 14:22:24 +1000894 /* Master routines */
895 int (*master_create)(struct drm_device *dev, struct drm_master *master);
896 void (*master_destroy)(struct drm_device *dev, struct drm_master *master);
Thomas Hellstrom862302f2009-12-02 18:15:25 +0000897 /**
898 * master_set is called whenever the minor master is set.
899 * master_drop is called whenever the minor master is dropped.
900 */
901
902 int (*master_set)(struct drm_device *dev, struct drm_file *file_priv,
903 bool from_open);
904 void (*master_drop)(struct drm_device *dev, struct drm_file *file_priv,
905 bool from_release);
Dave Airlie7c1c2872008-11-28 14:22:24 +1000906
Ben Gamari955b12d2009-02-17 20:08:49 -0500907 int (*debugfs_init)(struct drm_minor *minor);
908 void (*debugfs_cleanup)(struct drm_minor *minor);
Eric Anholt673a3942008-07-30 12:06:12 -0700909
910 /**
911 * Driver-specific constructor for drm_gem_objects, to set up
912 * obj->driver_private.
913 *
914 * Returns 0 on success.
915 */
916 int (*gem_init_object) (struct drm_gem_object *obj);
917 void (*gem_free_object) (struct drm_gem_object *obj);
Ben Skeggs304eda32011-06-09 00:24:59 +0000918 int (*gem_open_object) (struct drm_gem_object *, struct drm_file *);
919 void (*gem_close_object) (struct drm_gem_object *, struct drm_file *);
Eric Anholt673a3942008-07-30 12:06:12 -0700920
Dave Airlie32488772011-11-25 15:21:02 +0000921 /* prime: */
922 /* export handle -> fd (see drm_gem_prime_handle_to_fd() helper) */
923 int (*prime_handle_to_fd)(struct drm_device *dev, struct drm_file *file_priv,
924 uint32_t handle, uint32_t flags, int *prime_fd);
925 /* import fd -> handle (see drm_gem_prime_fd_to_handle() helper) */
926 int (*prime_fd_to_handle)(struct drm_device *dev, struct drm_file *file_priv,
927 int prime_fd, uint32_t *handle);
928 /* export GEM -> dmabuf */
929 struct dma_buf * (*gem_prime_export)(struct drm_device *dev,
930 struct drm_gem_object *obj, int flags);
931 /* import dmabuf -> GEM */
932 struct drm_gem_object * (*gem_prime_import)(struct drm_device *dev,
933 struct dma_buf *dma_buf);
Aaron Plattner89177642013-01-15 20:47:42 +0000934 /* low-level interface used by drm_gem_prime_{import,export} */
935 int (*gem_prime_pin)(struct drm_gem_object *obj);
936 struct sg_table *(*gem_prime_get_sg_table)(struct drm_gem_object *obj);
937 struct drm_gem_object *(*gem_prime_import_sg_table)(
938 struct drm_device *dev, size_t size,
939 struct sg_table *sgt);
940 void *(*gem_prime_vmap)(struct drm_gem_object *obj);
941 void (*gem_prime_vunmap)(struct drm_gem_object *obj, void *vaddr);
Dave Airlie32488772011-11-25 15:21:02 +0000942
Dave Airlie28d52042009-09-21 14:33:58 +1000943 /* vga arb irq handler */
944 void (*vgaarb_irq)(struct drm_device *dev, bool state);
945
Dave Airlieff72145b2011-02-07 12:16:14 +1000946 /* dumb alloc support */
947 int (*dumb_create)(struct drm_file *file_priv,
948 struct drm_device *dev,
949 struct drm_mode_create_dumb *args);
950 int (*dumb_map_offset)(struct drm_file *file_priv,
951 struct drm_device *dev, uint32_t handle,
952 uint64_t *offset);
953 int (*dumb_destroy)(struct drm_file *file_priv,
954 struct drm_device *dev,
955 uint32_t handle);
956
Jesse Barnesa2c0a972008-11-05 10:31:53 -0800957 /* Driver private ops for this object */
Laurent Pinchart78b68552012-05-17 13:27:22 +0200958 const struct vm_operations_struct *gem_vm_ops;
Jesse Barnesa2c0a972008-11-05 10:31:53 -0800959
Dave Airlie22eae942005-11-10 22:16:34 +1100960 int major;
961 int minor;
962 int patchlevel;
963 char *name;
964 char *desc;
965 char *date;
966
Linus Torvalds1da177e2005-04-16 15:20:36 -0700967 u32 driver_features;
968 int dev_priv_size;
Eric Anholtc153f452007-09-03 12:06:45 +1000969 struct drm_ioctl_desc *ioctls;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700970 int num_ioctls;
Arjan van de Vene08e96d2011-10-31 07:28:57 -0700971 const struct file_operations *fops;
Dave Airlie8410ea32010-12-15 03:16:38 +1000972 union {
973 struct pci_driver *pci;
974 struct platform_device *platform_device;
Dave Airliea250b9f2010-12-15 07:13:55 +1000975 struct usb_driver *usb;
Dave Airlie8410ea32010-12-15 03:16:38 +1000976 } kdriver;
977 struct drm_bus *bus;
978
Dave Airliee7f7ab42008-11-28 13:43:47 +1000979 /* List of devices hanging off this driver */
980 struct list_head device_list;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700981};
982
Dave Airlie2c14f282008-04-21 16:47:32 +1000983#define DRM_MINOR_UNASSIGNED 0
984#define DRM_MINOR_LEGACY 1
Dave Airlief453ba02008-11-07 14:05:41 -0800985#define DRM_MINOR_CONTROL 2
986#define DRM_MINOR_RENDER 3
Dave Airlie2c14f282008-04-21 16:47:32 +1000987
Ben Gamari955b12d2009-02-17 20:08:49 -0500988
989/**
990 * debugfs node list. This structure represents a debugfs file to
991 * be created by the drm core
992 */
993struct drm_debugfs_list {
994 const char *name; /** file name */
995 int (*show)(struct seq_file*, void*); /** show callback */
996 u32 driver_features; /**< Required driver features for this entry */
997};
998
999/**
1000 * debugfs node structure. This structure represents a debugfs file.
1001 */
1002struct drm_debugfs_node {
1003 struct list_head list;
1004 struct drm_minor *minor;
1005 struct drm_debugfs_list *debugfs_ent;
1006 struct dentry *dent;
1007};
1008
1009/**
1010 * Info file list entry. This structure represents a debugfs or proc file to
1011 * be created by the drm core
1012 */
1013struct drm_info_list {
1014 const char *name; /** file name */
1015 int (*show)(struct seq_file*, void*); /** show callback */
1016 u32 driver_features; /**< Required driver features for this entry */
1017 void *data;
1018};
1019
1020/**
1021 * debugfs node structure. This structure represents a debugfs file.
1022 */
1023struct drm_info_node {
1024 struct list_head list;
1025 struct drm_minor *minor;
David Howellsce089b52013-04-12 15:23:25 +01001026 const struct drm_info_list *info_ent;
Ben Gamari955b12d2009-02-17 20:08:49 -05001027 struct dentry *dent;
1028};
1029
Linus Torvalds1da177e2005-04-16 15:20:36 -07001030/**
Dave Airlie2c14f282008-04-21 16:47:32 +10001031 * DRM minor structure. This structure represents a drm minor number.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001032 */
Dave Airlie2c14f282008-04-21 16:47:32 +10001033struct drm_minor {
1034 int index; /**< Minor device number */
1035 int type; /**< Control or render */
1036 dev_t device; /**< Device number for mknod */
1037 struct device kdev; /**< Linux device */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001038 struct drm_device *dev;
Ben Gamari955b12d2009-02-17 20:08:49 -05001039
1040 struct proc_dir_entry *proc_root; /**< proc directory entry */
1041 struct drm_info_node proc_nodes;
1042 struct dentry *debugfs_root;
Marcin Slusarzb3e067c2011-11-09 22:20:35 +01001043
1044 struct list_head debugfs_list;
1045 struct mutex debugfs_lock; /* Protects debugfs_list. */
Ben Gamari955b12d2009-02-17 20:08:49 -05001046
Dave Airlie7c1c2872008-11-28 14:22:24 +10001047 struct drm_master *master; /* currently active master for this node */
1048 struct list_head master_list;
Dave Airlief453ba02008-11-07 14:05:41 -08001049 struct drm_mode_group mode_group;
Dave Airlie84b1fd12007-07-11 15:53:27 +10001050};
Linus Torvalds1da177e2005-04-16 15:20:36 -07001051
Chris Wilson1794d252011-04-17 07:43:32 +01001052/* mode specified on the command line */
1053struct drm_cmdline_mode {
1054 bool specified;
1055 bool refresh_specified;
1056 bool bpp_specified;
1057 int xres, yres;
1058 int bpp;
1059 int refresh;
1060 bool rb;
1061 bool interlace;
1062 bool cvt;
1063 bool margins;
1064 enum drm_connector_force force;
1065};
1066
1067
Kristian Høgsbergc9a9c5e2009-09-12 04:33:34 +10001068struct drm_pending_vblank_event {
1069 struct drm_pending_event base;
1070 int pipe;
1071 struct drm_event_vblank event;
1072};
1073
Linus Torvalds1da177e2005-04-16 15:20:36 -07001074/**
1075 * DRM device structure. This structure represent a complete card that
1076 * may contain multiple heads.
1077 */
Dave Airlie84b1fd12007-07-11 15:53:27 +10001078struct drm_device {
Dave Airliee7f7ab42008-11-28 13:43:47 +10001079 struct list_head driver_item; /**< list of devices per driver */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001080 char *devname; /**< For /proc/interrupts */
1081 int if_version; /**< Highest interface version set */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001082
Linus Torvalds1da177e2005-04-16 15:20:36 -07001083 /** \name Locks */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001084 /*@{ */
1085 spinlock_t count_lock; /**< For inuse, drm_device::open_count, drm_device::buf_use */
Dave Airlie30e2fb12006-02-02 19:37:46 +11001086 struct mutex struct_mutex; /**< For others */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001087 /*@} */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001088
1089 /** \name Usage Counters */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001090 /*@{ */
1091 int open_count; /**< Outstanding files open */
1092 atomic_t ioctl_count; /**< Outstanding IOCTLs pending */
1093 atomic_t vma_count; /**< Outstanding vma areas open */
1094 int buf_use; /**< Buffers in use -- cannot alloc */
1095 atomic_t buf_alloc; /**< Buffer allocation in progress */
1096 /*@} */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001097
1098 /** \name Performance counters */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001099 /*@{ */
1100 unsigned long counters;
Dave Airliec60ce622007-07-11 15:27:12 +10001101 enum drm_stat_type types[15];
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001102 atomic_t counts[15];
1103 /*@} */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001104
Dave Airliebd1b3312007-05-26 05:01:51 +10001105 struct list_head filelist;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001106
1107 /** \name Memory management */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001108 /*@{ */
Dave Airliebd1b3312007-05-26 05:01:51 +10001109 struct list_head maplist; /**< Linked list of regions */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001110 int map_count; /**< Number of mappable regions */
Dave Airliee0be4282007-07-12 10:26:44 +10001111 struct drm_open_hash map_hash; /**< User token hash table for maps */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001112
1113 /** \name Context handle management */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001114 /*@{ */
Dave Airliebd1b3312007-05-26 05:01:51 +10001115 struct list_head ctxlist; /**< Linked list of context handles */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001116 int ctx_count; /**< Number of context handles */
Dave Airlie30e2fb12006-02-02 19:37:46 +11001117 struct mutex ctxlist_mutex; /**< For ctxlist */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001118
Dave Airlie62968142007-07-17 10:46:52 +10001119 struct idr ctx_idr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001120
Dave Airliebd1b3312007-05-26 05:01:51 +10001121 struct list_head vmalist; /**< List of vmas (for debugging) */
Dave Airlief453ba02008-11-07 14:05:41 -08001122
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001123 /*@} */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001124
Daniel Vettera344a7e2011-10-26 00:54:41 +02001125 /** \name DMA support */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001126 /*@{ */
Dave Airliecdd55a22007-07-11 16:32:08 +10001127 struct drm_device_dma *dma; /**< Optional pointer for DMA support */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001128 /*@} */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001129
1130 /** \name Context support */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001131 /*@{ */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001132 int irq_enabled; /**< True if irq handler is enabled */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001133 __volatile__ long context_flag; /**< Context swapping flag */
1134 __volatile__ long interrupt_flag; /**< Interruption handler flag */
1135 __volatile__ long dma_flag; /**< DMA dispatch flag */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001136 wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */
1137 int last_checked; /**< Last context checked for DMA */
1138 int last_context; /**< Last current context */
1139 unsigned long last_switch; /**< jiffies at last context switch */
1140 /*@} */
1141
1142 struct work_struct work;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001143 /** \name VBLANK IRQ support */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001144 /*@{ */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001145
Jesse Barnes0a3e67a2008-09-30 12:14:26 -07001146 /*
1147 * At load time, disabling the vblank interrupt won't be allowed since
1148 * old clients may not call the modeset ioctl and therefore misbehave.
1149 * Once the modeset ioctl *has* been called though, we can safely
1150 * disable them when unused.
1151 */
1152 int vblank_disable_allowed;
1153
1154 wait_queue_head_t *vbl_queue; /**< VBLANK wait queue */
1155 atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */
Mario Kleiner27641c32010-10-23 04:20:23 +02001156 struct timeval *_vblank_time; /**< timestamp of current vblank_count (drivers must alloc right number of fields) */
1157 spinlock_t vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001158 spinlock_t vbl_lock;
Jesse Barnes0a3e67a2008-09-30 12:14:26 -07001159 atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */
1160 u32 *last_vblank; /* protected by dev->vbl_lock, used */
1161 /* for wraparound handling */
1162 int *vblank_enabled; /* so we don't call enable more than
1163 once per disable */
1164 int *vblank_inmodeset; /* Display driver is setting mode */
Eric Anholtfede5c92008-12-19 17:23:38 -08001165 u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */
Jesse Barnes0a3e67a2008-09-30 12:14:26 -07001166 struct timer_list vblank_disable_timer;
1167
1168 u32 max_vblank_count; /**< size of vblank counter register */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001169
Kristian Høgsbergc9a9c5e2009-09-12 04:33:34 +10001170 /**
1171 * List of events
1172 */
1173 struct list_head vblank_event_list;
1174 spinlock_t event_lock;
1175
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001176 /*@} */
1177 cycles_t ctx_start;
1178 cycles_t lck_start;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001179
Linus Torvalds1da177e2005-04-16 15:20:36 -07001180 struct fasync_struct *buf_async;/**< Processes waiting for SIGIO */
1181 wait_queue_head_t buf_readers; /**< Processes waiting to read */
1182 wait_queue_head_t buf_writers; /**< Processes waiting to ctx switch */
1183
Dave Airlie55910512007-07-11 16:53:40 +10001184 struct drm_agp_head *agp; /**< AGP data */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001185
Jordan Crousedcdb1672010-05-27 13:40:25 -06001186 struct device *dev; /**< Device structure */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001187 struct pci_dev *pdev; /**< PCI device structure */
Eric Anholt2f02cc32006-09-22 04:19:34 +10001188 int pci_vendor; /**< PCI vendor id */
1189 int pci_device; /**< PCI device id */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001190#ifdef __alpha__
Linus Torvalds1da177e2005-04-16 15:20:36 -07001191 struct pci_controller *hose;
1192#endif
Jordan Crousedcdb1672010-05-27 13:40:25 -06001193
1194 struct platform_device *platformdev; /**< Platform device struture */
Dave Airliea250b9f2010-12-15 07:13:55 +10001195 struct usb_device *usbdev;
Jordan Crousedcdb1672010-05-27 13:40:25 -06001196
Dave Airlie55910512007-07-11 16:53:40 +10001197 struct drm_sg_mem *sg; /**< Scatter gather memory */
Dave Airlie19227562011-02-24 08:35:06 +10001198 unsigned int num_crtcs; /**< Number of CRTCs on this device */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001199 void *dev_private; /**< device private data */
Jesse Barnesa2c0a972008-11-05 10:31:53 -08001200 void *mm_private;
1201 struct address_space *dev_mapping;
Dave Airlie55910512007-07-11 16:53:40 +10001202 struct drm_sigdata sigdata; /**< For block_all_signals */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001203 sigset_t sigmask;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001204
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001205 struct drm_driver *driver;
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +11001206 struct drm_local_map *agp_buffer_map;
Dave Airlied1f2b552005-08-05 22:11:22 +10001207 unsigned int agp_buffer_token;
Dave Airlief453ba02008-11-07 14:05:41 -08001208 struct drm_minor *control; /**< Control node for card */
Dave Airlie2c14f282008-04-21 16:47:32 +10001209 struct drm_minor *primary; /**< render type primary screen head */
=?utf-8?q?Michel_D=C3=A4nzer?=bea56792006-10-24 23:04:19 +10001210
Dave Airlief453ba02008-11-07 14:05:41 -08001211 struct drm_mode_config mode_config; /**< Current mode config */
1212
Eric Anholt673a3942008-07-30 12:06:12 -07001213 /** \name GEM information */
1214 /*@{ */
1215 spinlock_t object_name_lock;
1216 struct idr object_name_idr;
Eric Anholt673a3942008-07-30 12:06:12 -07001217 /*@} */
Dave Airlie5bcf7192010-12-07 09:20:40 +10001218 int switch_power_state;
Dave Airlie2c07a212012-02-20 14:18:07 +00001219
1220 atomic_t unplugged; /* device has been unplugged or gone away */
Dave Airlie84b1fd12007-07-11 15:53:27 +10001221};
Linus Torvalds1da177e2005-04-16 15:20:36 -07001222
Dave Airlie5bcf7192010-12-07 09:20:40 +10001223#define DRM_SWITCH_POWER_ON 0
1224#define DRM_SWITCH_POWER_OFF 1
1225#define DRM_SWITCH_POWER_CHANGING 2
1226
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001227static __inline__ int drm_core_check_feature(struct drm_device *dev,
1228 int feature)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001229{
1230 return ((dev->driver->driver_features & feature) ? 1 : 0);
1231}
1232
Jordan Crousedcdb1672010-05-27 13:40:25 -06001233static inline int drm_dev_to_irq(struct drm_device *dev)
1234{
Dave Airlie8410ea32010-12-15 03:16:38 +10001235 return dev->driver->bus->get_irq(dev);
Jordan Crousedcdb1672010-05-27 13:40:25 -06001236}
1237
Dave Airlie332296012006-08-07 20:23:42 +10001238
Linus Torvalds1da177e2005-04-16 15:20:36 -07001239#if __OS_HAS_AGP
1240static inline int drm_core_has_AGP(struct drm_device *dev)
1241{
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001242 return drm_core_check_feature(dev, DRIVER_USE_AGP);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001243}
1244#else
1245#define drm_core_has_AGP(dev) (0)
1246#endif
1247
1248#if __OS_HAS_MTRR
1249static inline int drm_core_has_MTRR(struct drm_device *dev)
1250{
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001251 return drm_core_check_feature(dev, DRIVER_USE_MTRR);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001252}
Dave Airlie269dc512006-01-02 16:23:01 +11001253
1254#define DRM_MTRR_WC MTRR_TYPE_WRCOMB
1255
1256static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
1257 unsigned int flags)
1258{
1259 return mtrr_add(offset, size, flags, 1);
1260}
1261
1262static inline int drm_mtrr_del(int handle, unsigned long offset,
1263 unsigned long size, unsigned int flags)
1264{
1265 return mtrr_del(handle, offset, size);
1266}
1267
Linus Torvalds1da177e2005-04-16 15:20:36 -07001268#else
1269#define drm_core_has_MTRR(dev) (0)
Dave Airlie9c7d4622006-01-12 20:44:30 +11001270
1271#define DRM_MTRR_WC 0
1272
1273static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
1274 unsigned int flags)
1275{
1276 return 0;
1277}
1278
1279static inline int drm_mtrr_del(int handle, unsigned long offset,
1280 unsigned long size, unsigned int flags)
1281{
1282 return 0;
1283}
Linus Torvalds1da177e2005-04-16 15:20:36 -07001284#endif
1285
Dave Airlie2c07a212012-02-20 14:18:07 +00001286static inline void drm_device_set_unplugged(struct drm_device *dev)
1287{
1288 smp_wmb();
1289 atomic_set(&dev->unplugged, 1);
1290}
1291
1292static inline int drm_device_is_unplugged(struct drm_device *dev)
1293{
1294 int ret = atomic_read(&dev->unplugged);
1295 smp_rmb();
1296 return ret;
1297}
1298
Daniel Vetter8faf6b12012-12-01 23:43:11 +01001299static inline bool drm_modeset_is_locked(struct drm_device *dev)
1300{
1301 return mutex_is_locked(&dev->mode_config.mutex);
1302}
1303
Linus Torvalds1da177e2005-04-16 15:20:36 -07001304/******************************************************************/
1305/** \name Internal function definitions */
1306/*@{*/
1307
Linus Torvalds1da177e2005-04-16 15:20:36 -07001308 /* Driver support (drm_drv.h) */
Arnd Bergmanned8b6702009-12-16 22:17:09 +00001309extern long drm_ioctl(struct file *filp,
1310 unsigned int cmd, unsigned long arg);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001311extern long drm_compat_ioctl(struct file *filp,
1312 unsigned int cmd, unsigned long arg);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001313extern int drm_lastclose(struct drm_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001314
1315 /* Device support (drm_fops.h) */
Arnd Bergmann58374712010-07-10 23:51:39 +02001316extern struct mutex drm_global_mutex;
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001317extern int drm_open(struct inode *inode, struct file *filp);
1318extern int drm_stub_open(struct inode *inode, struct file *filp);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001319extern int drm_fasync(int fd, struct file *filp, int on);
Kristian Høgsbergc9a9c5e2009-09-12 04:33:34 +10001320extern ssize_t drm_read(struct file *filp, char __user *buffer,
1321 size_t count, loff_t *offset);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001322extern int drm_release(struct inode *inode, struct file *filp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001323
1324 /* Mapping support (drm_vm.h) */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001325extern int drm_mmap(struct file *filp, struct vm_area_struct *vma);
Jesse Barnesa2c0a972008-11-05 10:31:53 -08001326extern int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma);
Rob Clarkb06d66b2012-05-01 11:04:51 -05001327extern void drm_vm_open_locked(struct drm_device *dev, struct vm_area_struct *vma);
1328extern void drm_vm_close_locked(struct drm_device *dev, struct vm_area_struct *vma);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001329extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001330
1331 /* Memory management support (drm_memory.h) */
David Howellsa1ce3922012-10-02 18:01:25 +01001332#include <drm/drm_memory.h>
Daniel Vetter690bb512010-08-23 22:53:35 +02001333extern void drm_free_agp(DRM_AGP_MEM * handle, int pages);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001334extern int drm_bind_agp(DRM_AGP_MEM * handle, unsigned int start);
Eric Anholt673a3942008-07-30 12:06:12 -07001335extern DRM_AGP_MEM *drm_agp_bind_pages(struct drm_device *dev,
1336 struct page **pages,
1337 unsigned long num_pages,
Keith Packardba1eb1d2008-10-14 19:55:10 -07001338 uint32_t gtt_offset,
1339 uint32_t type);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001340extern int drm_unbind_agp(DRM_AGP_MEM * handle);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001341
1342 /* Misc. IOCTL support (drm_ioctl.h) */
Eric Anholtc153f452007-09-03 12:06:45 +10001343extern int drm_irq_by_busid(struct drm_device *dev, void *data,
1344 struct drm_file *file_priv);
1345extern int drm_getunique(struct drm_device *dev, void *data,
1346 struct drm_file *file_priv);
1347extern int drm_setunique(struct drm_device *dev, void *data,
1348 struct drm_file *file_priv);
1349extern int drm_getmap(struct drm_device *dev, void *data,
1350 struct drm_file *file_priv);
1351extern int drm_getclient(struct drm_device *dev, void *data,
1352 struct drm_file *file_priv);
1353extern int drm_getstats(struct drm_device *dev, void *data,
1354 struct drm_file *file_priv);
Ben Skeggs9f354212011-02-21 11:17:35 +10001355extern int drm_getcap(struct drm_device *dev, void *data,
1356 struct drm_file *file_priv);
Eric Anholtc153f452007-09-03 12:06:45 +10001357extern int drm_setversion(struct drm_device *dev, void *data,
1358 struct drm_file *file_priv);
1359extern int drm_noop(struct drm_device *dev, void *data,
1360 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001361
1362 /* Context IOCTL support (drm_context.h) */
Eric Anholtc153f452007-09-03 12:06:45 +10001363extern int drm_resctx(struct drm_device *dev, void *data,
1364 struct drm_file *file_priv);
1365extern int drm_addctx(struct drm_device *dev, void *data,
1366 struct drm_file *file_priv);
1367extern int drm_modctx(struct drm_device *dev, void *data,
1368 struct drm_file *file_priv);
1369extern int drm_getctx(struct drm_device *dev, void *data,
1370 struct drm_file *file_priv);
1371extern int drm_switchctx(struct drm_device *dev, void *data,
1372 struct drm_file *file_priv);
1373extern int drm_newctx(struct drm_device *dev, void *data,
1374 struct drm_file *file_priv);
1375extern int drm_rmctx(struct drm_device *dev, void *data,
1376 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001377
Dave Airlie84b1fd12007-07-11 15:53:27 +10001378extern int drm_ctxbitmap_init(struct drm_device *dev);
1379extern void drm_ctxbitmap_cleanup(struct drm_device *dev);
1380extern void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001381
Eric Anholtc153f452007-09-03 12:06:45 +10001382extern int drm_setsareactx(struct drm_device *dev, void *data,
1383 struct drm_file *file_priv);
1384extern int drm_getsareactx(struct drm_device *dev, void *data,
1385 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001386
Linus Torvalds1da177e2005-04-16 15:20:36 -07001387 /* Authentication IOCTL support (drm_auth.h) */
Eric Anholtc153f452007-09-03 12:06:45 +10001388extern int drm_getmagic(struct drm_device *dev, void *data,
1389 struct drm_file *file_priv);
1390extern int drm_authmagic(struct drm_device *dev, void *data,
1391 struct drm_file *file_priv);
Thomas Hellstrom598781d2012-01-24 18:54:21 +01001392extern int drm_remove_magic(struct drm_master *master, drm_magic_t magic);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001393
Eric Anholt673a3942008-07-30 12:06:12 -07001394/* Cache management (drm_cache.c) */
1395void drm_clflush_pages(struct page *pages[], unsigned long num_pages);
Chris Wilson9da3da62012-06-01 15:20:22 +01001396void drm_clflush_sg(struct sg_table *st);
Daniel Vetter6d5cd9c2012-03-25 19:47:30 +02001397void drm_clflush_virt_range(char *addr, unsigned long length);
Eric Anholt673a3942008-07-30 12:06:12 -07001398
Linus Torvalds1da177e2005-04-16 15:20:36 -07001399 /* Locking IOCTL support (drm_lock.h) */
Eric Anholtc153f452007-09-03 12:06:45 +10001400extern int drm_lock(struct drm_device *dev, void *data,
1401 struct drm_file *file_priv);
1402extern int drm_unlock(struct drm_device *dev, void *data,
1403 struct drm_file *file_priv);
Dave Airlie55910512007-07-11 16:53:40 +10001404extern int drm_lock_free(struct drm_lock_data *lock_data, unsigned int context);
1405extern void drm_idlelock_take(struct drm_lock_data *lock_data);
1406extern void drm_idlelock_release(struct drm_lock_data *lock_data);
Thomas Hellstrom040ac322007-03-23 13:28:33 +11001407
1408/*
1409 * These are exported to drivers so that they can implement fencing using
1410 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
1411 */
1412
Eric Anholtc153f452007-09-03 12:06:45 +10001413extern int drm_i_have_hw_lock(struct drm_device *dev, struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001414
1415 /* Buffer management support (drm_bufs.h) */
Dave Airlie84b1fd12007-07-11 15:53:27 +10001416extern int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc * request);
1417extern int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc * request);
Benjamin Herrenschmidt41c2e752009-02-02 16:55:47 +11001418extern int drm_addmap(struct drm_device *dev, resource_size_t offset,
Dave Airliec60ce622007-07-11 15:27:12 +10001419 unsigned int size, enum drm_map_type type,
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +11001420 enum drm_map_flags flags, struct drm_local_map **map_ptr);
Eric Anholtc153f452007-09-03 12:06:45 +10001421extern int drm_addmap_ioctl(struct drm_device *dev, void *data,
1422 struct drm_file *file_priv);
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +11001423extern int drm_rmmap(struct drm_device *dev, struct drm_local_map *map);
1424extern int drm_rmmap_locked(struct drm_device *dev, struct drm_local_map *map);
Eric Anholtc153f452007-09-03 12:06:45 +10001425extern int drm_rmmap_ioctl(struct drm_device *dev, void *data,
1426 struct drm_file *file_priv);
1427extern int drm_addbufs(struct drm_device *dev, void *data,
1428 struct drm_file *file_priv);
1429extern int drm_infobufs(struct drm_device *dev, void *data,
1430 struct drm_file *file_priv);
1431extern int drm_markbufs(struct drm_device *dev, void *data,
1432 struct drm_file *file_priv);
1433extern int drm_freebufs(struct drm_device *dev, void *data,
1434 struct drm_file *file_priv);
1435extern int drm_mapbufs(struct drm_device *dev, void *data,
1436 struct drm_file *file_priv);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001437extern int drm_order(unsigned long size);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001438
1439 /* DMA support (drm_dma.h) */
Dave Airlie84b1fd12007-07-11 15:53:27 +10001440extern int drm_dma_setup(struct drm_device *dev);
1441extern void drm_dma_takedown(struct drm_device *dev);
Dave Airlie056219e2007-07-11 16:17:42 +10001442extern void drm_free_buffer(struct drm_device *dev, struct drm_buf * buf);
Eric Anholt6c340ea2007-08-25 20:23:09 +10001443extern void drm_core_reclaim_buffers(struct drm_device *dev,
1444 struct drm_file *filp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001445
1446 /* IRQ support (drm_irq.h) */
Eric Anholtc153f452007-09-03 12:06:45 +10001447extern int drm_control(struct drm_device *dev, void *data,
1448 struct drm_file *file_priv);
Kristian Høgsbergdbb19d32008-08-20 11:04:27 -04001449extern int drm_irq_install(struct drm_device *dev);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001450extern int drm_irq_uninstall(struct drm_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001451
Jesse Barnes0a3e67a2008-09-30 12:14:26 -07001452extern int drm_vblank_init(struct drm_device *dev, int num_crtcs);
Dave Airlieaf6061a2008-05-07 12:15:39 +10001453extern int drm_wait_vblank(struct drm_device *dev, void *data,
Jesse Barnes0a3e67a2008-09-30 12:14:26 -07001454 struct drm_file *filp);
Dave Airlieaf6061a2008-05-07 12:15:39 +10001455extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq);
Jesse Barnes0a3e67a2008-09-30 12:14:26 -07001456extern u32 drm_vblank_count(struct drm_device *dev, int crtc);
Mario Kleiner27641c32010-10-23 04:20:23 +02001457extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc,
1458 struct timeval *vblanktime);
Rob Clarkc6eefa12012-10-16 22:48:40 +00001459extern void drm_send_vblank_event(struct drm_device *dev, int crtc,
1460 struct drm_pending_vblank_event *e);
Chris Wilson78c6e172011-01-31 10:48:04 +00001461extern bool drm_handle_vblank(struct drm_device *dev, int crtc);
Jesse Barnes0a3e67a2008-09-30 12:14:26 -07001462extern int drm_vblank_get(struct drm_device *dev, int crtc);
1463extern void drm_vblank_put(struct drm_device *dev, int crtc);
Li Peng778c9022009-11-09 12:51:22 +08001464extern void drm_vblank_off(struct drm_device *dev, int crtc);
Keith Packard52440212008-11-18 09:30:25 -08001465extern void drm_vblank_cleanup(struct drm_device *dev);
Mario Kleiner27641c32010-10-23 04:20:23 +02001466extern u32 drm_get_last_vbltimestamp(struct drm_device *dev, int crtc,
1467 struct timeval *tvblank, unsigned flags);
1468extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev,
1469 int crtc, int *max_error,
1470 struct timeval *vblank_time,
1471 unsigned flags,
1472 struct drm_crtc *refcrtc);
1473extern void drm_calc_timestamping_constants(struct drm_crtc *crtc);
1474
Chris Wilson1794d252011-04-17 07:43:32 +01001475extern bool
1476drm_mode_parse_command_line_for_connector(const char *mode_option,
1477 struct drm_connector *connector,
1478 struct drm_cmdline_mode *mode);
1479
1480extern struct drm_display_mode *
1481drm_mode_create_from_cmdline_mode(struct drm_device *dev,
1482 struct drm_cmdline_mode *cmd);
1483
Steffen Trumtrarebc64e42012-11-14 11:22:52 +01001484extern int drm_display_mode_from_videomode(const struct videomode *vm,
1485 struct drm_display_mode *dmode);
Steffen Trumtraredb37a92012-10-28 18:28:06 +01001486extern int of_get_drm_display_mode(struct device_node *np,
1487 struct drm_display_mode *dmode,
1488 int index);
Steffen Trumtrarebc64e42012-11-14 11:22:52 +01001489
Jesse Barnes0a3e67a2008-09-30 12:14:26 -07001490/* Modesetting support */
Dave Airlief453ba02008-11-07 14:05:41 -08001491extern void drm_vblank_pre_modeset(struct drm_device *dev, int crtc);
1492extern void drm_vblank_post_modeset(struct drm_device *dev, int crtc);
Jesse Barnes0a3e67a2008-09-30 12:14:26 -07001493extern int drm_modeset_ctl(struct drm_device *dev, void *data,
1494 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001495
1496 /* AGP/GART support (drm_agpsupport.h) */
Dave Airlie55910512007-07-11 16:53:40 +10001497extern struct drm_agp_head *drm_agp_init(struct drm_device *dev);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001498extern int drm_agp_acquire(struct drm_device *dev);
Eric Anholtc153f452007-09-03 12:06:45 +10001499extern int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
1500 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001501extern int drm_agp_release(struct drm_device *dev);
Eric Anholtc153f452007-09-03 12:06:45 +10001502extern int drm_agp_release_ioctl(struct drm_device *dev, void *data,
1503 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001504extern int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode);
Eric Anholtc153f452007-09-03 12:06:45 +10001505extern int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
1506 struct drm_file *file_priv);
1507extern int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info);
1508extern int drm_agp_info_ioctl(struct drm_device *dev, void *data,
1509 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001510extern int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request);
Eric Anholtc153f452007-09-03 12:06:45 +10001511extern int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
1512 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001513extern int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request);
Eric Anholtc153f452007-09-03 12:06:45 +10001514extern int drm_agp_free_ioctl(struct drm_device *dev, void *data,
1515 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001516extern int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request);
Eric Anholtc153f452007-09-03 12:06:45 +10001517extern int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
1518 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001519extern int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
Eric Anholtc153f452007-09-03 12:06:45 +10001520extern int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
1521 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001522
1523 /* Stub support (drm_stub.h) */
Dave Airlie7c1c2872008-11-28 14:22:24 +10001524extern int drm_setmaster_ioctl(struct drm_device *dev, void *data,
1525 struct drm_file *file_priv);
1526extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
1527 struct drm_file *file_priv);
1528struct drm_master *drm_master_create(struct drm_minor *minor);
1529extern struct drm_master *drm_master_get(struct drm_master *master);
1530extern void drm_master_put(struct drm_master **master);
Dave Airlie8410ea32010-12-15 03:16:38 +10001531
Kristian Høgsberg112b7152009-01-04 16:55:33 -05001532extern void drm_put_dev(struct drm_device *dev);
Dave Airlie2c14f282008-04-21 16:47:32 +10001533extern int drm_put_minor(struct drm_minor **minor);
Dave Airlie2c07a212012-02-20 14:18:07 +00001534extern void drm_unplug_dev(struct drm_device *dev);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001535extern unsigned int drm_debug;
Dave Airlie2c14f282008-04-21 16:47:32 +10001536
Mario Kleiner27641c32010-10-23 04:20:23 +02001537extern unsigned int drm_vblank_offdelay;
1538extern unsigned int drm_timestamp_precision;
Imre Deakc61eef72012-10-23 18:53:26 +00001539extern unsigned int drm_timestamp_monotonic;
Mario Kleiner27641c32010-10-23 04:20:23 +02001540
Greg Kroah-Hartman0650fd52006-01-20 14:08:59 -08001541extern struct class *drm_class;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001542extern struct proc_dir_entry *drm_proc_root;
Ben Gamari955b12d2009-02-17 20:08:49 -05001543extern struct dentry *drm_debugfs_root;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001544
Dave Airlie2c14f282008-04-21 16:47:32 +10001545extern struct idr drm_minors_idr;
1546
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +11001547extern struct drm_local_map *drm_getsarea(struct drm_device *dev);
Dave Airlieda509d72007-05-26 05:04:51 +10001548
Linus Torvalds1da177e2005-04-16 15:20:36 -07001549 /* Proc support (drm_proc.h) */
David Howellsb63e6aa2013-04-12 15:34:31 +01001550extern int drm_proc_init(struct drm_minor *minor, struct proc_dir_entry *root);
Dave Airlie2c14f282008-04-21 16:47:32 +10001551extern int drm_proc_cleanup(struct drm_minor *minor, struct proc_dir_entry *root);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001552
Ben Gamari955b12d2009-02-17 20:08:49 -05001553 /* Debugfs support */
1554#if defined(CONFIG_DEBUG_FS)
1555extern int drm_debugfs_init(struct drm_minor *minor, int minor_id,
1556 struct dentry *root);
1557extern int drm_debugfs_create_files(struct drm_info_list *files, int count,
1558 struct dentry *root, struct drm_minor *minor);
1559extern int drm_debugfs_remove_files(struct drm_info_list *files, int count,
1560 struct drm_minor *minor);
1561extern int drm_debugfs_cleanup(struct drm_minor *minor);
1562#endif
1563
1564 /* Info file support */
1565extern int drm_name_info(struct seq_file *m, void *data);
1566extern int drm_vm_info(struct seq_file *m, void *data);
Ben Gamari955b12d2009-02-17 20:08:49 -05001567extern int drm_bufs_info(struct seq_file *m, void *data);
1568extern int drm_vblank_info(struct seq_file *m, void *data);
1569extern int drm_clients_info(struct seq_file *m, void* data);
1570extern int drm_gem_name_info(struct seq_file *m, void *data);
Ben Gamari955b12d2009-02-17 20:08:49 -05001571
Dave Airlie32488772011-11-25 15:21:02 +00001572
Aaron Plattner89177642013-01-15 20:47:42 +00001573extern struct dma_buf *drm_gem_prime_export(struct drm_device *dev,
1574 struct drm_gem_object *obj, int flags);
Dave Airlie32488772011-11-25 15:21:02 +00001575extern int drm_gem_prime_handle_to_fd(struct drm_device *dev,
1576 struct drm_file *file_priv, uint32_t handle, uint32_t flags,
1577 int *prime_fd);
Aaron Plattner89177642013-01-15 20:47:42 +00001578extern struct drm_gem_object *drm_gem_prime_import(struct drm_device *dev,
1579 struct dma_buf *dma_buf);
Dave Airlie32488772011-11-25 15:21:02 +00001580extern int drm_gem_prime_fd_to_handle(struct drm_device *dev,
1581 struct drm_file *file_priv, int prime_fd, uint32_t *handle);
1582
1583extern int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data,
1584 struct drm_file *file_priv);
1585extern int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data,
1586 struct drm_file *file_priv);
1587
Dave Airlie51ab7ba2012-05-18 15:40:33 +01001588extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, struct page **pages,
1589 dma_addr_t *addrs, int max_pages);
Dave Airlie32488772011-11-25 15:21:02 +00001590extern struct sg_table *drm_prime_pages_to_sg(struct page **pages, int nr_pages);
1591extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg);
1592
1593
1594void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv);
1595void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv);
Dave Airlie219b4732013-04-22 09:54:36 +10001596int drm_prime_lookup_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t *handle);
1597void drm_prime_remove_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf);
Dave Airlie32488772011-11-25 15:21:02 +00001598
1599int drm_prime_add_dma_buf(struct drm_device *dev, struct drm_gem_object *obj);
1600int drm_prime_lookup_obj(struct drm_device *dev, struct dma_buf *buf,
1601 struct drm_gem_object **obj);
1602
Ben Gamari955b12d2009-02-17 20:08:49 -05001603#if DRM_DEBUG_CODE
1604extern int drm_vma_info(struct seq_file *m, void *data);
1605#endif
1606
Linus Torvalds1da177e2005-04-16 15:20:36 -07001607 /* Scatter Gather Support (drm_scatter.h) */
Dave Airlie55910512007-07-11 16:53:40 +10001608extern void drm_sg_cleanup(struct drm_sg_mem * entry);
Eric Anholtc153f452007-09-03 12:06:45 +10001609extern int drm_sg_alloc_ioctl(struct drm_device *dev, void *data,
1610 struct drm_file *file_priv);
1611extern int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request);
1612extern int drm_sg_free(struct drm_device *dev, void *data,
1613 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001614
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001615 /* ATI PCIGART support (ati_pcigart.h) */
Dave Airlie84b1fd12007-07-11 15:53:27 +10001616extern int drm_ati_pcigart_init(struct drm_device *dev,
Dave Airlie55910512007-07-11 16:53:40 +10001617 struct drm_ati_pcigart_info * gart_info);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001618extern int drm_ati_pcigart_cleanup(struct drm_device *dev,
Dave Airlie55910512007-07-11 16:53:40 +10001619 struct drm_ati_pcigart_info * gart_info);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001620
Dave Airlie84b1fd12007-07-11 15:53:27 +10001621extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
Zhenyu Wange6be8d92010-01-05 11:25:05 +08001622 size_t align);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001623extern void __drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
1624extern void drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001625
1626 /* sysfs support (drm_sysfs.c) */
Jesse Barnese8b962b2007-11-22 14:02:38 +10001627struct drm_sysfs_class;
Greg Kroah-Hartman0650fd52006-01-20 14:08:59 -08001628extern struct class *drm_sysfs_create(struct module *owner, char *name);
Jesse Barnese8b962b2007-11-22 14:02:38 +10001629extern void drm_sysfs_destroy(void);
Dave Airlie2c14f282008-04-21 16:47:32 +10001630extern int drm_sysfs_device_add(struct drm_minor *minor);
Dave Airlief453ba02008-11-07 14:05:41 -08001631extern void drm_sysfs_hotplug_event(struct drm_device *dev);
Dave Airlie2c14f282008-04-21 16:47:32 +10001632extern void drm_sysfs_device_remove(struct drm_minor *minor);
Dave Airlief453ba02008-11-07 14:05:41 -08001633extern char *drm_get_connector_status_name(enum drm_connector_status status);
1634extern int drm_sysfs_connector_add(struct drm_connector *connector);
1635extern void drm_sysfs_connector_remove(struct drm_connector *connector);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001636
Eric Anholt673a3942008-07-30 12:06:12 -07001637/* Graphics Execution Manager library functions (drm_gem.c) */
1638int drm_gem_init(struct drm_device *dev);
Jesse Barnesa2c0a972008-11-05 10:31:53 -08001639void drm_gem_destroy(struct drm_device *dev);
Daniel Vetterfd632aa2010-04-09 19:05:05 +00001640void drm_gem_object_release(struct drm_gem_object *obj);
Eric Anholt673a3942008-07-30 12:06:12 -07001641void drm_gem_object_free(struct kref *kref);
1642struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev,
1643 size_t size);
Daniel Vetter1d397042010-04-09 19:05:04 +00001644int drm_gem_object_init(struct drm_device *dev,
1645 struct drm_gem_object *obj, size_t size);
Alan Cox62cb70112011-06-07 14:17:51 +01001646int drm_gem_private_object_init(struct drm_device *dev,
1647 struct drm_gem_object *obj, size_t size);
Dave Airlie29d08b32010-09-27 16:17:17 +10001648void drm_gem_object_handle_free(struct drm_gem_object *obj);
Jesse Barnesab00b3e2009-02-11 14:01:46 -08001649void drm_gem_vm_open(struct vm_area_struct *vma);
1650void drm_gem_vm_close(struct vm_area_struct *vma);
Jesse Barnesa2c0a972008-11-05 10:31:53 -08001651int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
Eric Anholt673a3942008-07-30 12:06:12 -07001652
David Howellsa1ce3922012-10-02 18:01:25 +01001653#include <drm/drm_global.h>
Dave Airlieba4420c2010-03-09 10:56:52 +10001654
Eric Anholt673a3942008-07-30 12:06:12 -07001655static inline void
1656drm_gem_object_reference(struct drm_gem_object *obj)
1657{
1658 kref_get(&obj->refcount);
1659}
1660
1661static inline void
1662drm_gem_object_unreference(struct drm_gem_object *obj)
1663{
Luca Barbieric3ae90c2010-02-09 05:49:11 +00001664 if (obj != NULL)
1665 kref_put(&obj->refcount, drm_gem_object_free);
1666}
Eric Anholt673a3942008-07-30 12:06:12 -07001667
Luca Barbieric3ae90c2010-02-09 05:49:11 +00001668static inline void
1669drm_gem_object_unreference_unlocked(struct drm_gem_object *obj)
1670{
Chris Wilson39b4d072010-09-30 09:10:26 +01001671 if (obj != NULL) {
1672 struct drm_device *dev = obj->dev;
1673 mutex_lock(&dev->struct_mutex);
1674 kref_put(&obj->refcount, drm_gem_object_free);
1675 mutex_unlock(&dev->struct_mutex);
1676 }
Eric Anholt673a3942008-07-30 12:06:12 -07001677}
1678
1679int drm_gem_handle_create(struct drm_file *file_priv,
1680 struct drm_gem_object *obj,
Pekka Paalanena1a2d1d2009-08-23 12:40:55 +03001681 u32 *handlep);
Dave Airlieff72145b2011-02-07 12:16:14 +10001682int drm_gem_handle_delete(struct drm_file *filp, u32 handle);
Eric Anholt673a3942008-07-30 12:06:12 -07001683
1684static inline void
1685drm_gem_object_handle_reference(struct drm_gem_object *obj)
1686{
1687 drm_gem_object_reference(obj);
Dave Airlie29d08b32010-09-27 16:17:17 +10001688 atomic_inc(&obj->handle_count);
Eric Anholt673a3942008-07-30 12:06:12 -07001689}
1690
1691static inline void
1692drm_gem_object_handle_unreference(struct drm_gem_object *obj)
1693{
1694 if (obj == NULL)
1695 return;
1696
Dave Airlie29d08b32010-09-27 16:17:17 +10001697 if (atomic_read(&obj->handle_count) == 0)
1698 return;
Eric Anholt673a3942008-07-30 12:06:12 -07001699 /*
1700 * Must bump handle count first as this may be the last
1701 * ref, in which case the object would disappear before we
1702 * checked for a name
1703 */
Dave Airlie29d08b32010-09-27 16:17:17 +10001704 if (atomic_dec_and_test(&obj->handle_count))
1705 drm_gem_object_handle_free(obj);
Eric Anholt673a3942008-07-30 12:06:12 -07001706 drm_gem_object_unreference(obj);
1707}
1708
Luca Barbieric3ae90c2010-02-09 05:49:11 +00001709static inline void
1710drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj)
1711{
1712 if (obj == NULL)
1713 return;
1714
Dave Airlie29d08b32010-09-27 16:17:17 +10001715 if (atomic_read(&obj->handle_count) == 0)
1716 return;
1717
Luca Barbieric3ae90c2010-02-09 05:49:11 +00001718 /*
1719 * Must bump handle count first as this may be the last
1720 * ref, in which case the object would disappear before we
1721 * checked for a name
1722 */
Dave Airlie29d08b32010-09-27 16:17:17 +10001723
1724 if (atomic_dec_and_test(&obj->handle_count))
1725 drm_gem_object_handle_free(obj);
Luca Barbieric3ae90c2010-02-09 05:49:11 +00001726 drm_gem_object_unreference_unlocked(obj);
1727}
1728
Rob Clark75ef8b32011-08-10 08:09:07 -05001729void drm_gem_free_mmap_offset(struct drm_gem_object *obj);
1730int drm_gem_create_mmap_offset(struct drm_gem_object *obj);
1731
Eric Anholt673a3942008-07-30 12:06:12 -07001732struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev,
1733 struct drm_file *filp,
Pekka Paalanena1a2d1d2009-08-23 12:40:55 +03001734 u32 handle);
Eric Anholt673a3942008-07-30 12:06:12 -07001735int drm_gem_close_ioctl(struct drm_device *dev, void *data,
1736 struct drm_file *file_priv);
1737int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
1738 struct drm_file *file_priv);
1739int drm_gem_open_ioctl(struct drm_device *dev, void *data,
1740 struct drm_file *file_priv);
1741void drm_gem_open(struct drm_device *dev, struct drm_file *file_private);
1742void drm_gem_release(struct drm_device *dev, struct drm_file *file_private);
1743
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +11001744extern void drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev);
1745extern void drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev);
1746extern void drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001747
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +11001748static __inline__ struct drm_local_map *drm_core_findmap(struct drm_device *dev,
1749 unsigned int token)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001750{
Dave Airlie55910512007-07-11 16:53:40 +10001751 struct drm_map_list *_entry;
Dave Airliebd1b3312007-05-26 05:01:51 +10001752 list_for_each_entry(_entry, &dev->maplist, head)
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001753 if (_entry->user_token == token)
1754 return _entry->map;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001755 return NULL;
1756}
1757
Dave Airlie8410ea32010-12-15 03:16:38 +10001758static __inline__ void drm_core_dropmap(struct drm_local_map *map)
Dave Airliecda17382005-07-10 17:31:26 +10001759{
Dave Airlie8410ea32010-12-15 03:16:38 +10001760}
Jordan Crousedcdb1672010-05-27 13:40:25 -06001761
David Howellsa1ce3922012-10-02 18:01:25 +01001762#include <drm/drm_mem_util.h>
Dave Airlie8410ea32010-12-15 03:16:38 +10001763
1764extern int drm_fill_in_dev(struct drm_device *dev,
1765 const struct pci_device_id *ent,
1766 struct drm_driver *driver);
1767int drm_get_minor(struct drm_device *dev, struct drm_minor **minor, int type);
1768/*@}*/
1769
1770/* PCI section */
1771static __inline__ int drm_pci_device_is_agp(struct drm_device *dev)
1772{
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001773 if (dev->driver->device_is_agp != NULL) {
1774 int err = (*dev->driver->device_is_agp) (dev);
1775
Dave Airliecda17382005-07-10 17:31:26 +10001776 if (err != 2) {
1777 return err;
1778 }
1779 }
1780
1781 return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP);
1782}
1783
Dave Airlie8410ea32010-12-15 03:16:38 +10001784extern int drm_pci_init(struct drm_driver *driver, struct pci_driver *pdriver);
1785extern void drm_pci_exit(struct drm_driver *driver, struct pci_driver *pdriver);
1786extern int drm_get_pci_dev(struct pci_dev *pdev,
Jordan Crousedcdb1672010-05-27 13:40:25 -06001787 const struct pci_device_id *ent,
1788 struct drm_driver *driver);
Dave Airlie8410ea32010-12-15 03:16:38 +10001789
Dave Airlief4297782012-06-27 08:35:53 +01001790#define DRM_PCIE_SPEED_25 1
1791#define DRM_PCIE_SPEED_50 2
1792#define DRM_PCIE_SPEED_80 4
1793
1794extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask);
Dave Airlie8410ea32010-12-15 03:16:38 +10001795
1796/* platform section */
1797extern int drm_platform_init(struct drm_driver *driver, struct platform_device *platform_device);
1798extern void drm_platform_exit(struct drm_driver *driver, struct platform_device *platform_device);
1799
1800extern int drm_get_platform_dev(struct platform_device *pdev,
1801 struct drm_driver *driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001802
Dave Airliecc1f7192012-01-05 09:55:22 +00001803/* returns true if currently okay to sleep */
1804static __inline__ bool drm_can_sleep(void)
1805{
1806 if (in_atomic() || in_dbg_master() || irqs_disabled())
1807 return false;
1808 return true;
1809}
1810
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001811#endif /* __KERNEL__ */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001812#endif