blob: c8c42215143158ef6eed2d5bcb9a00f42f29a857 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/**
Dave Airlieb5e89ed2005-09-25 14:28:13 +10002 * \file drmP.h
Linus Torvalds1da177e2005-04-16 15:20:36 -07003 * Private header for Direct Rendering Manager
Dave Airlieb5e89ed2005-09-25 14:28:13 +10004 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07005 * \author Rickard E. (Rik) Faith <faith@valinux.com>
6 * \author Gareth Hughes <gareth@valinux.com>
7 */
8
9/*
10 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
11 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
12 * All rights reserved.
13 *
14 * Permission is hereby granted, free of charge, to any person obtaining a
15 * copy of this software and associated documentation files (the "Software"),
16 * to deal in the Software without restriction, including without limitation
17 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
18 * and/or sell copies of the Software, and to permit persons to whom the
19 * Software is furnished to do so, subject to the following conditions:
20 *
21 * The above copyright notice and this permission notice (including the next
22 * paragraph) shall be included in all copies or substantial portions of the
23 * Software.
24 *
25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
26 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
27 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
28 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
29 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
30 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
31 * OTHER DEALINGS IN THE SOFTWARE.
32 */
33
34#ifndef _DRM_P_H_
35#define _DRM_P_H_
36
37/* If you want the memory alloc debug functionality, change define below */
38/* #define DEBUG_MEMORY */
39
40#ifdef __KERNEL__
41#ifdef __alpha__
42/* add include of current.h so that "current" is defined
43 * before static inline funcs in wait.h. Doing this so we
44 * can build the DRM (part of PI DRI). 4/21/2000 S + B */
45#include <asm/current.h>
Dave Airlieb5e89ed2005-09-25 14:28:13 +100046#endif /* __alpha__ */
Linus Torvalds1da177e2005-04-16 15:20:36 -070047#include <linux/module.h>
48#include <linux/kernel.h>
49#include <linux/miscdevice.h>
50#include <linux/fs.h>
51#include <linux/proc_fs.h>
52#include <linux/init.h>
53#include <linux/file.h>
54#include <linux/pci.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070055#include <linux/jiffies.h>
56#include <linux/smp_lock.h> /* For (un)lock_kernel */
Dave Airlieb05c2382008-03-17 10:24:24 +100057#include <linux/dma-mapping.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070058#include <linux/mm.h>
59#include <linux/cdev.h>
Dave Airlie30e2fb12006-02-02 19:37:46 +110060#include <linux/mutex.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070061#if defined(__alpha__) || defined(__powerpc__)
Dave Airlieb5e89ed2005-09-25 14:28:13 +100062#include <asm/pgtable.h> /* For pte_wrprotect */
Linus Torvalds1da177e2005-04-16 15:20:36 -070063#endif
64#include <asm/io.h>
65#include <asm/mman.h>
66#include <asm/uaccess.h>
67#ifdef CONFIG_MTRR
68#include <asm/mtrr.h>
69#endif
70#if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
71#include <linux/types.h>
72#include <linux/agp_backend.h>
73#endif
74#include <linux/workqueue.h>
75#include <linux/poll.h>
76#include <asm/pgalloc.h>
77#include "drm.h"
78
Dave Airlie62968142007-07-17 10:46:52 +100079#include <linux/idr.h>
80
Linus Torvalds1da177e2005-04-16 15:20:36 -070081#define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE)))
82#define __OS_HAS_MTRR (defined(CONFIG_MTRR))
83
Eric Anholtc153f452007-09-03 12:06:45 +100084struct drm_file;
85struct drm_device;
86
Linus Torvalds1da177e2005-04-16 15:20:36 -070087#include "drm_os_linux.h"
Thomas Hellstrom3a1bd922006-08-07 21:30:28 +100088#include "drm_hashtab.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070089
90/***********************************************************************/
91/** \name DRM template customization defaults */
92/*@{*/
93
94/* driver capabilities and requirements mask */
95#define DRIVER_USE_AGP 0x1
96#define DRIVER_REQUIRE_AGP 0x2
97#define DRIVER_USE_MTRR 0x4
98#define DRIVER_PCI_DMA 0x8
99#define DRIVER_SG 0x10
100#define DRIVER_HAVE_DMA 0x20
101#define DRIVER_HAVE_IRQ 0x40
102#define DRIVER_IRQ_SHARED 0x80
Dave Airlieaf6061a2008-05-07 12:15:39 +1000103#define DRIVER_IRQ_VBL 0x100
Linus Torvalds1da177e2005-04-16 15:20:36 -0700104#define DRIVER_DMA_QUEUE 0x200
Dave Airlieb84397d62005-07-10 14:46:12 +1000105#define DRIVER_FB_DMA 0x400
Dave Airlieaf6061a2008-05-07 12:15:39 +1000106#define DRIVER_IRQ_VBL2 0x800
Eric Anholt673a3942008-07-30 12:06:12 -0700107#define DRIVER_GEM 0x1000
Dave Airlief453ba02008-11-07 14:05:41 -0800108#define DRIVER_MODESET 0x2000
Linus Torvalds1da177e2005-04-16 15:20:36 -0700109
110/***********************************************************************/
111/** \name Begin the DRM... */
112/*@{*/
113
114#define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then
115 also include looping detection. */
116
Thomas Hellstrom8669cbc2006-08-07 22:22:10 +1000117#define DRM_MAGIC_HASH_ORDER 4 /**< Size of key hash table. Must be power of 2. */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700118#define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */
119#define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */
120#define DRM_LOOPING_LIMIT 5000000
Linus Torvalds1da177e2005-04-16 15:20:36 -0700121#define DRM_TIME_SLICE (HZ/20) /**< Time slice for GLXContexts */
122#define DRM_LOCK_SLICE 1 /**< Time slice for lock, in jiffies */
123
124#define DRM_FLAG_DEBUG 0x01
125
126#define DRM_MEM_DMA 0
127#define DRM_MEM_SAREA 1
128#define DRM_MEM_DRIVER 2
129#define DRM_MEM_MAGIC 3
130#define DRM_MEM_IOCTLS 4
131#define DRM_MEM_MAPS 5
132#define DRM_MEM_VMAS 6
133#define DRM_MEM_BUFS 7
134#define DRM_MEM_SEGS 8
135#define DRM_MEM_PAGES 9
136#define DRM_MEM_FILES 10
137#define DRM_MEM_QUEUES 11
138#define DRM_MEM_CMDS 12
139#define DRM_MEM_MAPPINGS 13
140#define DRM_MEM_BUFLISTS 14
141#define DRM_MEM_AGPLISTS 15
142#define DRM_MEM_TOTALAGP 16
143#define DRM_MEM_BOUNDAGP 17
144#define DRM_MEM_CTXBITMAP 18
145#define DRM_MEM_STUB 19
146#define DRM_MEM_SGLISTS 20
Thomas Hellstrom3a1bd922006-08-07 21:30:28 +1000147#define DRM_MEM_CTXLIST 21
148#define DRM_MEM_MM 22
149#define DRM_MEM_HASHTAB 23
Linus Torvalds1da177e2005-04-16 15:20:36 -0700150
151#define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
Thomas Hellstrom8d153f72006-08-07 22:36:47 +1000152#define DRM_MAP_HASH_OFFSET 0x10000000
Linus Torvalds1da177e2005-04-16 15:20:36 -0700153
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000154/*@}*/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700155
156/***********************************************************************/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700157/** \name Macros to make printk easier */
158/*@{*/
159
160/**
161 * Error output.
162 *
163 * \param fmt printf() like format string.
164 * \param arg arguments
165 */
166#define DRM_ERROR(fmt, arg...) \
Harvey Harrisonbf9d8922008-04-30 00:55:10 -0700167 printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* " fmt , __func__ , ##arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168
169/**
170 * Memory error output.
171 *
172 * \param area memory area where the error occurred.
173 * \param fmt printf() like format string.
174 * \param arg arguments
175 */
176#define DRM_MEM_ERROR(area, fmt, arg...) \
Harvey Harrisonbf9d8922008-04-30 00:55:10 -0700177 printk(KERN_ERR "[" DRM_NAME ":%s:%s] *ERROR* " fmt , __func__, \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700178 drm_mem_stats[area].name , ##arg)
179
180#define DRM_INFO(fmt, arg...) printk(KERN_INFO "[" DRM_NAME "] " fmt , ##arg)
181
182/**
183 * Debug output.
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000184 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700185 * \param fmt printf() like format string.
186 * \param arg arguments
187 */
188#if DRM_DEBUG_CODE
189#define DRM_DEBUG(fmt, arg...) \
190 do { \
191 if ( drm_debug ) \
192 printk(KERN_DEBUG \
193 "[" DRM_NAME ":%s] " fmt , \
Harvey Harrisonbf9d8922008-04-30 00:55:10 -0700194 __func__ , ##arg); \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700195 } while (0)
196#else
197#define DRM_DEBUG(fmt, arg...) do { } while (0)
198#endif
199
200#define DRM_PROC_LIMIT (PAGE_SIZE-80)
201
202#define DRM_PROC_PRINT(fmt, arg...) \
203 len += sprintf(&buf[len], fmt , ##arg); \
204 if (len > DRM_PROC_LIMIT) { *eof = 1; return len - offset; }
205
206#define DRM_PROC_PRINT_RET(ret, fmt, arg...) \
207 len += sprintf(&buf[len], fmt , ##arg); \
208 if (len > DRM_PROC_LIMIT) { ret; *eof = 1; return len - offset; }
209
210/*@}*/
211
Linus Torvalds1da177e2005-04-16 15:20:36 -0700212/***********************************************************************/
213/** \name Internal types and structures */
214/*@{*/
215
Dave Airlie99a26572005-09-25 13:25:41 +1000216#define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700217
218#define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
219#define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
220#define DRM_WAITCOUNT(dev,idx) DRM_BUFCOUNT(&dev->queuelist[idx]->waitlist)
221
222#define DRM_IF_VERSION(maj, min) (maj << 16 | min)
223/**
224 * Get the private SAREA mapping.
225 *
226 * \param _dev DRM device.
227 * \param _ctx context number.
228 * \param _map output mapping.
229 */
230#define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
231 (_map) = (_dev)->context_sareas[_ctx]; \
232} while(0)
233
234/**
235 * Test that the hardware lock is held by the caller, returning otherwise.
236 *
237 * \param dev DRM device.
238 * \param filp file pointer of the caller.
239 */
Eric Anholtc153f452007-09-03 12:06:45 +1000240#define LOCK_TEST_WITH_RETURN( dev, file_priv ) \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700241do { \
Dave Airlie7c1c2872008-11-28 14:22:24 +1000242 if (!_DRM_LOCK_IS_HELD(file_priv->master->lock.hw_lock->lock) || \
243 file_priv->master->lock.file_priv != file_priv) { \
Eric Anholtc153f452007-09-03 12:06:45 +1000244 DRM_ERROR( "%s called without lock held, held %d owner %p %p\n",\
Dave Airlie7c1c2872008-11-28 14:22:24 +1000245 __func__, _DRM_LOCK_IS_HELD(file_priv->master->lock.hw_lock->lock),\
246 file_priv->master->lock.file_priv, file_priv); \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700247 return -EINVAL; \
248 } \
249} while (0)
250
251/**
252 * Copy and IOCTL return string to user space
253 */
254#define DRM_COPY( name, value ) \
255 len = strlen( value ); \
256 if ( len > name##_len ) len = name##_len; \
257 name##_len = strlen( value ); \
258 if ( len && name ) { \
259 if ( copy_to_user( name, value, len ) ) \
260 return -EFAULT; \
261 }
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000262
Linus Torvalds1da177e2005-04-16 15:20:36 -0700263/**
264 * Ioctl function type.
265 *
266 * \param inode device inode.
Eric Anholt6c340ea2007-08-25 20:23:09 +1000267 * \param file_priv DRM file private pointer.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700268 * \param cmd command.
269 * \param arg argument.
270 */
Eric Anholtc153f452007-09-03 12:06:45 +1000271typedef int drm_ioctl_t(struct drm_device *dev, void *data,
272 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700273
Dave Airlie9a186642005-06-23 21:29:18 +1000274typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
275 unsigned long arg);
276
Dave Airliea7a2cc32006-01-02 13:54:04 +1100277#define DRM_AUTH 0x1
278#define DRM_MASTER 0x2
279#define DRM_ROOT_ONLY 0x4
Dave Airlief453ba02008-11-07 14:05:41 -0800280#define DRM_CONTROL_ALLOW 0x8
Dave Airliea7a2cc32006-01-02 13:54:04 +1100281
Eric Anholtc153f452007-09-03 12:06:45 +1000282struct drm_ioctl_desc {
283 unsigned int cmd;
Dave Airliea7a2cc32006-01-02 13:54:04 +1100284 int flags;
Richard Kennedyc972d752009-03-18 17:26:44 +0000285 drm_ioctl_t *func;
Eric Anholtc153f452007-09-03 12:06:45 +1000286};
287
288/**
289 * Creates a driver or general drm_ioctl_desc array entry for the given
290 * ioctl, for use by drm_ioctl().
291 */
Richard Kennedyc972d752009-03-18 17:26:44 +0000292#define DRM_IOCTL_DEF(ioctl, _func, _flags) \
293 [DRM_IOCTL_NR(ioctl)] = {.cmd = ioctl, .func = _func, .flags = _flags}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700294
Dave Airlie8fc2fdf2007-07-11 16:21:47 +1000295struct drm_magic_entry {
Thomas Hellstrom8669cbc2006-08-07 22:22:10 +1000296 struct list_head head;
Dave Airliee0be4282007-07-12 10:26:44 +1000297 struct drm_hash_item hash_item;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000298 struct drm_file *priv;
Dave Airlie8fc2fdf2007-07-11 16:21:47 +1000299};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700300
Dave Airlie8fc2fdf2007-07-11 16:21:47 +1000301struct drm_vma_entry {
Dave Airliebd1b3312007-05-26 05:01:51 +1000302 struct list_head head;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700303 struct vm_area_struct *vma;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000304 pid_t pid;
Dave Airlie8fc2fdf2007-07-11 16:21:47 +1000305};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700306
307/**
308 * DMA buffer.
309 */
Dave Airlie056219e2007-07-11 16:17:42 +1000310struct drm_buf {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000311 int idx; /**< Index into master buflist */
312 int total; /**< Buffer size */
313 int order; /**< log-base-2(total) */
314 int used; /**< Amount of buffer in use (for DMA) */
315 unsigned long offset; /**< Byte offset (used internally) */
316 void *address; /**< Address of buffer */
317 unsigned long bus_address; /**< Bus address of buffer */
318 struct drm_buf *next; /**< Kernel-only: used for free list */
319 __volatile__ int waiting; /**< On kernel DMA queue */
320 __volatile__ int pending; /**< On hardware DMA queue */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700321 wait_queue_head_t dma_wait; /**< Processes waiting */
Eric Anholt6c340ea2007-08-25 20:23:09 +1000322 struct drm_file *file_priv; /**< Private of holding file descr */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000323 int context; /**< Kernel queue for this buffer */
324 int while_locked; /**< Dispatch this buffer while locked */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700325 enum {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000326 DRM_LIST_NONE = 0,
327 DRM_LIST_FREE = 1,
328 DRM_LIST_WAIT = 2,
329 DRM_LIST_PEND = 3,
330 DRM_LIST_PRIO = 4,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700331 DRM_LIST_RECLAIM = 5
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000332 } list; /**< Which list we're on */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700333
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000334 int dev_priv_size; /**< Size of buffer private storage */
335 void *dev_private; /**< Per-buffer private storage */
Dave Airlie056219e2007-07-11 16:17:42 +1000336};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700337
Linus Torvalds1da177e2005-04-16 15:20:36 -0700338/** bufs is one longer than it has to be */
Dave Airliecdd55a22007-07-11 16:32:08 +1000339struct drm_waitlist {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000340 int count; /**< Number of possible buffers */
Dave Airlie056219e2007-07-11 16:17:42 +1000341 struct drm_buf **bufs; /**< List of pointers to buffers */
342 struct drm_buf **rp; /**< Read pointer */
343 struct drm_buf **wp; /**< Write pointer */
344 struct drm_buf **end; /**< End pointer */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000345 spinlock_t read_lock;
346 spinlock_t write_lock;
Dave Airliecdd55a22007-07-11 16:32:08 +1000347};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700348
Dave Airliecdd55a22007-07-11 16:32:08 +1000349struct drm_freelist {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000350 int initialized; /**< Freelist in use */
351 atomic_t count; /**< Number of free buffers */
Dave Airlie056219e2007-07-11 16:17:42 +1000352 struct drm_buf *next; /**< End pointer */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700353
354 wait_queue_head_t waiting; /**< Processes waiting on free bufs */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000355 int low_mark; /**< Low water mark */
356 int high_mark; /**< High water mark */
357 atomic_t wfh; /**< If waiting for high mark */
358 spinlock_t lock;
Dave Airliecdd55a22007-07-11 16:32:08 +1000359};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700360
Dave Airlieddf19b92006-03-19 18:56:12 +1100361typedef struct drm_dma_handle {
362 dma_addr_t busaddr;
363 void *vaddr;
364 size_t size;
365} drm_dma_handle_t;
366
Linus Torvalds1da177e2005-04-16 15:20:36 -0700367/**
368 * Buffer entry. There is one of this for each buffer size order.
369 */
Dave Airliecdd55a22007-07-11 16:32:08 +1000370struct drm_buf_entry {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000371 int buf_size; /**< size */
372 int buf_count; /**< number of buffers */
Dave Airlie056219e2007-07-11 16:17:42 +1000373 struct drm_buf *buflist; /**< buffer list */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000374 int seg_count;
375 int page_order;
Dave Airliecdd55a22007-07-11 16:32:08 +1000376 struct drm_dma_handle **seglist;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700377
Dave Airliecdd55a22007-07-11 16:32:08 +1000378 struct drm_freelist freelist;
379};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700380
381/** File private data */
Dave Airlie84b1fd12007-07-11 15:53:27 +1000382struct drm_file {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000383 int authenticated;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000384 pid_t pid;
385 uid_t uid;
386 drm_magic_t magic;
387 unsigned long ioctl_count;
Dave Airliebd1b3312007-05-26 05:01:51 +1000388 struct list_head lhead;
Dave Airlie2c14f282008-04-21 16:47:32 +1000389 struct drm_minor *minor;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000390 unsigned long lock_count;
Dave Airlie7c1c2872008-11-28 14:22:24 +1000391
Eric Anholt673a3942008-07-30 12:06:12 -0700392 /** Mapping of mm object handles to object pointers. */
393 struct idr object_idr;
394 /** Lock for synchronization of access to object_idr. */
395 spinlock_t table_lock;
Dave Airlie7c1c2872008-11-28 14:22:24 +1000396
Eric Anholt6c340ea2007-08-25 20:23:09 +1000397 struct file *filp;
Dave Airlie8562b3f2007-11-05 12:37:41 +1000398 void *driver_priv;
Dave Airlie7c1c2872008-11-28 14:22:24 +1000399
400 int is_master; /* this file private is a master for a minor */
401 struct drm_master *master; /* master this node is currently associated with
402 N.B. not always minor->master */
Dave Airlief453ba02008-11-07 14:05:41 -0800403 struct list_head fbs;
Dave Airlie84b1fd12007-07-11 15:53:27 +1000404};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700405
406/** Wait queue */
Dave Airliecdd55a22007-07-11 16:32:08 +1000407struct drm_queue {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000408 atomic_t use_count; /**< Outstanding uses (+1) */
409 atomic_t finalization; /**< Finalization in progress */
410 atomic_t block_count; /**< Count of processes waiting */
411 atomic_t block_read; /**< Queue blocked for reads */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700412 wait_queue_head_t read_queue; /**< Processes waiting on block_read */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000413 atomic_t block_write; /**< Queue blocked for writes */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700414 wait_queue_head_t write_queue; /**< Processes waiting on block_write */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000415 atomic_t total_queued; /**< Total queued statistic */
416 atomic_t total_flushed; /**< Total flushes statistic */
417 atomic_t total_locks; /**< Total locks statistics */
Dave Airliec60ce622007-07-11 15:27:12 +1000418 enum drm_ctx_flags flags; /**< Context preserving and 2D-only */
Dave Airliecdd55a22007-07-11 16:32:08 +1000419 struct drm_waitlist waitlist; /**< Pending buffers */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700420 wait_queue_head_t flush_queue; /**< Processes waiting until flush */
Dave Airliecdd55a22007-07-11 16:32:08 +1000421};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700422
423/**
424 * Lock data.
425 */
Dave Airlie55910512007-07-11 16:53:40 +1000426struct drm_lock_data {
Dave Airliec60ce622007-07-11 15:27:12 +1000427 struct drm_hw_lock *hw_lock; /**< Hardware lock */
Dave Airlie8562b3f2007-11-05 12:37:41 +1000428 /** Private of lock holder's file (NULL=kernel) */
429 struct drm_file *file_priv;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700430 wait_queue_head_t lock_queue; /**< Queue of blocked processes */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000431 unsigned long lock_time; /**< Time of last lock in jiffies */
Thomas Hellstrom040ac322007-03-23 13:28:33 +1100432 spinlock_t spinlock;
433 uint32_t kernel_waiters;
434 uint32_t user_waiters;
435 int idle_has_lock;
Dave Airlie55910512007-07-11 16:53:40 +1000436};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700437
438/**
439 * DMA data.
440 */
Dave Airliecdd55a22007-07-11 16:32:08 +1000441struct drm_device_dma {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700442
Dave Airliecdd55a22007-07-11 16:32:08 +1000443 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000444 int buf_count; /**< total number of buffers */
Dave Airlie056219e2007-07-11 16:17:42 +1000445 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000446 int seg_count;
447 int page_count; /**< number of pages */
448 unsigned long *pagelist; /**< page list */
449 unsigned long byte_count;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700450 enum {
451 _DRM_DMA_USE_AGP = 0x01,
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000452 _DRM_DMA_USE_SG = 0x02,
George Sapountzis3417f332006-10-24 12:03:04 -0700453 _DRM_DMA_USE_FB = 0x04,
454 _DRM_DMA_USE_PCI_RO = 0x08
Linus Torvalds1da177e2005-04-16 15:20:36 -0700455 } flags;
456
Dave Airliecdd55a22007-07-11 16:32:08 +1000457};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700458
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000459/**
Linus Torvalds1da177e2005-04-16 15:20:36 -0700460 * AGP memory entry. Stored as a doubly linked list.
461 */
Dave Airlie55910512007-07-11 16:53:40 +1000462struct drm_agp_mem {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000463 unsigned long handle; /**< handle */
464 DRM_AGP_MEM *memory;
465 unsigned long bound; /**< address */
466 int pages;
Dave Airliebd1b3312007-05-26 05:01:51 +1000467 struct list_head head;
Dave Airlie55910512007-07-11 16:53:40 +1000468};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700469
470/**
471 * AGP data.
472 *
473 * \sa drm_agp_init() and drm_device::agp.
474 */
Dave Airlie55910512007-07-11 16:53:40 +1000475struct drm_agp_head {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000476 DRM_AGP_KERN agp_info; /**< AGP device information */
Dave Airliebd1b3312007-05-26 05:01:51 +1000477 struct list_head memory;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000478 unsigned long mode; /**< AGP mode */
479 struct agp_bridge_data *bridge;
480 int enabled; /**< whether the AGP bus as been enabled */
481 int acquired; /**< whether the AGP device has been acquired */
482 unsigned long base;
483 int agp_mtrr;
484 int cant_use_aperture;
485 unsigned long page_mask;
Dave Airlie55910512007-07-11 16:53:40 +1000486};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700487
488/**
489 * Scatter-gather memory.
490 */
Dave Airlie55910512007-07-11 16:53:40 +1000491struct drm_sg_mem {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000492 unsigned long handle;
493 void *virtual;
494 int pages;
495 struct page **pagelist;
496 dma_addr_t *busaddr;
Dave Airlie55910512007-07-11 16:53:40 +1000497};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700498
Dave Airlie55910512007-07-11 16:53:40 +1000499struct drm_sigdata {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000500 int context;
Dave Airliec60ce622007-07-11 15:27:12 +1000501 struct drm_hw_lock *lock;
Dave Airlie55910512007-07-11 16:53:40 +1000502};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700503
Dave Airlie8562b3f2007-11-05 12:37:41 +1000504
505/*
506 * Generic memory manager structs
507 */
508
509struct drm_mm_node {
510 struct list_head fl_entry;
511 struct list_head ml_entry;
512 int free;
513 unsigned long start;
514 unsigned long size;
515 struct drm_mm *mm;
516 void *private;
517};
518
519struct drm_mm {
520 struct list_head fl_entry;
521 struct list_head ml_entry;
522};
523
524
Linus Torvalds1da177e2005-04-16 15:20:36 -0700525/**
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +1100526 * Kernel side of a mapping
527 */
528struct drm_local_map {
Benjamin Herrenschmidt41c2e752009-02-02 16:55:47 +1100529 resource_size_t offset; /**< Requested physical address (0 for SAREA)*/
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +1100530 unsigned long size; /**< Requested physical size (bytes) */
531 enum drm_map_type type; /**< Type of memory to map */
532 enum drm_map_flags flags; /**< Flags */
533 void *handle; /**< User-space: "Handle" to pass to mmap() */
534 /**< Kernel-space: kernel-virtual address */
535 int mtrr; /**< MTRR slot used */
536};
537
538typedef struct drm_local_map drm_local_map_t;
539
540/**
Linus Torvalds1da177e2005-04-16 15:20:36 -0700541 * Mappings list
542 */
Dave Airlie55910512007-07-11 16:53:40 +1000543struct drm_map_list {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000544 struct list_head head; /**< list head */
Dave Airliee0be4282007-07-12 10:26:44 +1000545 struct drm_hash_item hash;
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +1100546 struct drm_local_map *map; /**< mapping */
Dave Airlie8562b3f2007-11-05 12:37:41 +1000547 uint64_t user_token;
Dave Airlie7c1c2872008-11-28 14:22:24 +1000548 struct drm_master *master;
Jesse Barnesa2c0a972008-11-05 10:31:53 -0800549 struct drm_mm_node *file_offset_node; /**< fake offset */
Dave Airlie55910512007-07-11 16:53:40 +1000550};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700551
Linus Torvalds1da177e2005-04-16 15:20:36 -0700552/**
553 * Context handle list
554 */
Dave Airlie55910512007-07-11 16:53:40 +1000555struct drm_ctx_list {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000556 struct list_head head; /**< list head */
557 drm_context_t handle; /**< context handle */
Dave Airlie84b1fd12007-07-11 15:53:27 +1000558 struct drm_file *tag; /**< associated fd private data */
Dave Airlie55910512007-07-11 16:53:40 +1000559};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700560
Dave Airlieea98a922005-09-11 20:28:11 +1000561/* location of GART table */
562#define DRM_ATI_GART_MAIN 1
563#define DRM_ATI_GART_FB 2
564
Dave Airlief2b04cd2007-05-08 15:19:23 +1000565#define DRM_ATI_GART_PCI 1
566#define DRM_ATI_GART_PCIE 2
567#define DRM_ATI_GART_IGP 3
568
Dave Airlie55910512007-07-11 16:53:40 +1000569struct drm_ati_pcigart_info {
Dave Airlieea98a922005-09-11 20:28:11 +1000570 int gart_table_location;
Dave Airlief2b04cd2007-05-08 15:19:23 +1000571 int gart_reg_if;
Dave Airlief26c4732006-01-02 17:18:39 +1100572 void *addr;
Dave Airlieea98a922005-09-11 20:28:11 +1000573 dma_addr_t bus_addr;
Dave Airlieb05c2382008-03-17 10:24:24 +1000574 dma_addr_t table_mask;
575 struct drm_dma_handle *table_handle;
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +1100576 struct drm_local_map mapping;
Dave Airlief2b04cd2007-05-08 15:19:23 +1000577 int table_size;
Dave Airlie55910512007-07-11 16:53:40 +1000578};
Dave Airlieea98a922005-09-11 20:28:11 +1000579
Linus Torvalds1da177e2005-04-16 15:20:36 -0700580/**
Jesse Barnesa2c0a972008-11-05 10:31:53 -0800581 * GEM specific mm private for tracking GEM objects
582 */
583struct drm_gem_mm {
584 struct drm_mm offset_manager; /**< Offset mgmt for buffer objects */
585 struct drm_open_hash offset_hash; /**< User token hash table for maps */
586};
587
588/**
Eric Anholt673a3942008-07-30 12:06:12 -0700589 * This structure defines the drm_mm memory object, which will be used by the
590 * DRM for its buffer objects.
591 */
592struct drm_gem_object {
593 /** Reference count of this object */
594 struct kref refcount;
595
596 /** Handle count of this object. Each handle also holds a reference */
597 struct kref handlecount;
598
599 /** Related drm device */
600 struct drm_device *dev;
601
602 /** File representing the shmem storage */
603 struct file *filp;
604
Jesse Barnesa2c0a972008-11-05 10:31:53 -0800605 /* Mapping info for this object */
606 struct drm_map_list map_list;
607
Eric Anholt673a3942008-07-30 12:06:12 -0700608 /**
609 * Size of the object, in bytes. Immutable over the object's
610 * lifetime.
611 */
612 size_t size;
613
614 /**
615 * Global name for this object, starts at 1. 0 means unnamed.
616 * Access is covered by the object_name_lock in the related drm_device
617 */
618 int name;
619
620 /**
621 * Memory domains. These monitor which caches contain read/write data
622 * related to the object. When transitioning from one set of domains
623 * to another, the driver is called to ensure that caches are suitably
624 * flushed and invalidated
625 */
626 uint32_t read_domains;
627 uint32_t write_domain;
628
629 /**
630 * While validating an exec operation, the
631 * new read/write domain values are computed here.
632 * They will be transferred to the above values
633 * at the point that any cache flushing occurs
634 */
635 uint32_t pending_read_domains;
636 uint32_t pending_write_domain;
637
638 void *driver_private;
639};
640
Dave Airlief453ba02008-11-07 14:05:41 -0800641#include "drm_crtc.h"
642
Dave Airlie7c1c2872008-11-28 14:22:24 +1000643/* per-master structure */
644struct drm_master {
645
646 struct kref refcount; /* refcount for this master */
647
648 struct list_head head; /**< each minor contains a list of masters */
649 struct drm_minor *minor; /**< link back to minor we are a master for */
650
651 char *unique; /**< Unique identifier: e.g., busid */
652 int unique_len; /**< Length of unique field */
Vegard Nossum1147c9c2008-12-02 13:38:47 +1000653 int unique_size; /**< amount allocated */
Dave Airlie7c1c2872008-11-28 14:22:24 +1000654
655 int blocked; /**< Blocked due to VC switch? */
656
657 /** \name Authentication */
658 /*@{ */
659 struct drm_open_hash magiclist;
660 struct list_head magicfree;
661 /*@} */
662
663 struct drm_lock_data lock; /**< Information on hardware lock */
664
665 void *driver_priv; /**< Private structure for driver to use */
666};
667
Eric Anholt673a3942008-07-30 12:06:12 -0700668/**
Linus Torvalds1da177e2005-04-16 15:20:36 -0700669 * DRM driver structure. This structure represent the common code for
670 * a family of cards. There will one drm_device for each card present
671 * in this family
672 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700673struct drm_driver {
Dave Airlie22eae942005-11-10 22:16:34 +1100674 int (*load) (struct drm_device *, unsigned long flags);
675 int (*firstopen) (struct drm_device *);
Dave Airlie84b1fd12007-07-11 15:53:27 +1000676 int (*open) (struct drm_device *, struct drm_file *);
Eric Anholt6c340ea2007-08-25 20:23:09 +1000677 void (*preclose) (struct drm_device *, struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +1000678 void (*postclose) (struct drm_device *, struct drm_file *);
Dave Airlie22eae942005-11-10 22:16:34 +1100679 void (*lastclose) (struct drm_device *);
680 int (*unload) (struct drm_device *);
Dave Airlieb932ccb2008-02-20 10:02:20 +1000681 int (*suspend) (struct drm_device *, pm_message_t state);
Jesse Barnese8b962b2007-11-22 14:02:38 +1000682 int (*resume) (struct drm_device *);
Eric Anholtc153f452007-09-03 12:06:45 +1000683 int (*dma_ioctl) (struct drm_device *dev, void *data, struct drm_file *file_priv);
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000684 void (*dma_ready) (struct drm_device *);
685 int (*dma_quiescent) (struct drm_device *);
Dave Airlie84b1fd12007-07-11 15:53:27 +1000686 int (*context_ctor) (struct drm_device *dev, int context);
687 int (*context_dtor) (struct drm_device *dev, int context);
688 int (*kernel_context_switch) (struct drm_device *dev, int old,
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000689 int new);
Dave Airlieaf6061a2008-05-07 12:15:39 +1000690 void (*kernel_context_switch_unlock) (struct drm_device *dev);
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000691
Dave Airliecda17382005-07-10 17:31:26 +1000692 /**
Jesse Barnes0a3e67a2008-09-30 12:14:26 -0700693 * get_vblank_counter - get raw hardware vblank counter
694 * @dev: DRM device
695 * @crtc: counter to fetch
696 *
697 * Driver callback for fetching a raw hardware vblank counter
698 * for @crtc. If a device doesn't have a hardware counter, the
699 * driver can simply return the value of drm_vblank_count and
700 * make the enable_vblank() and disable_vblank() hooks into no-ops,
701 * leaving interrupts enabled at all times.
702 *
703 * Wraparound handling and loss of events due to modesetting is dealt
704 * with in the DRM core code.
705 *
706 * RETURNS
707 * Raw vblank counter value.
708 */
709 u32 (*get_vblank_counter) (struct drm_device *dev, int crtc);
710
711 /**
712 * enable_vblank - enable vblank interrupt events
713 * @dev: DRM device
714 * @crtc: which irq to enable
715 *
716 * Enable vblank interrupts for @crtc. If the device doesn't have
717 * a hardware vblank counter, this routine should be a no-op, since
718 * interrupts will have to stay on to keep the count accurate.
719 *
720 * RETURNS
721 * Zero on success, appropriate errno if the given @crtc's vblank
722 * interrupt cannot be enabled.
723 */
724 int (*enable_vblank) (struct drm_device *dev, int crtc);
725
726 /**
727 * disable_vblank - disable vblank interrupt events
728 * @dev: DRM device
729 * @crtc: which irq to enable
730 *
731 * Disable vblank interrupts for @crtc. If the device doesn't have
732 * a hardware vblank counter, this routine should be a no-op, since
733 * interrupts will have to stay on to keep the count accurate.
734 */
735 void (*disable_vblank) (struct drm_device *dev, int crtc);
736
737 /**
Dave Airliecda17382005-07-10 17:31:26 +1000738 * Called by \c drm_device_is_agp. Typically used to determine if a
739 * card is really attached to AGP or not.
740 *
741 * \param dev DRM device handle
742 *
743 * \returns
744 * One of three values is returned depending on whether or not the
745 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
746 * (return of 1), or may or may not be AGP (return of 2).
747 */
Dave Airlie84b1fd12007-07-11 15:53:27 +1000748 int (*device_is_agp) (struct drm_device *dev);
Dave Airliecda17382005-07-10 17:31:26 +1000749
Linus Torvalds1da177e2005-04-16 15:20:36 -0700750 /* these have to be filled in */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000751
Dave Airlie22eae942005-11-10 22:16:34 +1100752 irqreturn_t(*irq_handler) (DRM_IRQ_ARGS);
Dave Airlie84b1fd12007-07-11 15:53:27 +1000753 void (*irq_preinstall) (struct drm_device *dev);
Jesse Barnes0a3e67a2008-09-30 12:14:26 -0700754 int (*irq_postinstall) (struct drm_device *dev);
Dave Airlie84b1fd12007-07-11 15:53:27 +1000755 void (*irq_uninstall) (struct drm_device *dev);
Eric Anholt6c340ea2007-08-25 20:23:09 +1000756 void (*reclaim_buffers) (struct drm_device *dev,
757 struct drm_file * file_priv);
Dave Airlied985c102006-01-02 21:32:48 +1100758 void (*reclaim_buffers_locked) (struct drm_device *dev,
Eric Anholt6c340ea2007-08-25 20:23:09 +1000759 struct drm_file *file_priv);
Thomas Hellstrom040ac322007-03-23 13:28:33 +1100760 void (*reclaim_buffers_idlelocked) (struct drm_device *dev,
Eric Anholt6c340ea2007-08-25 20:23:09 +1000761 struct drm_file *file_priv);
Benjamin Herrenschmidt41c2e752009-02-02 16:55:47 +1100762 resource_size_t (*get_map_ofs) (struct drm_local_map * map);
763 resource_size_t (*get_reg_ofs) (struct drm_device *dev);
Dave Airlie84b1fd12007-07-11 15:53:27 +1000764 void (*set_version) (struct drm_device *dev,
Dave Airliec60ce622007-07-11 15:27:12 +1000765 struct drm_set_version *sv);
Dave Airlie22eae942005-11-10 22:16:34 +1100766
Dave Airlie7c1c2872008-11-28 14:22:24 +1000767 /* Master routines */
768 int (*master_create)(struct drm_device *dev, struct drm_master *master);
769 void (*master_destroy)(struct drm_device *dev, struct drm_master *master);
770
Eric Anholt673a3942008-07-30 12:06:12 -0700771 int (*proc_init)(struct drm_minor *minor);
772 void (*proc_cleanup)(struct drm_minor *minor);
Ben Gamari955b12d2009-02-17 20:08:49 -0500773 int (*debugfs_init)(struct drm_minor *minor);
774 void (*debugfs_cleanup)(struct drm_minor *minor);
Eric Anholt673a3942008-07-30 12:06:12 -0700775
776 /**
777 * Driver-specific constructor for drm_gem_objects, to set up
778 * obj->driver_private.
779 *
780 * Returns 0 on success.
781 */
782 int (*gem_init_object) (struct drm_gem_object *obj);
783 void (*gem_free_object) (struct drm_gem_object *obj);
784
Jesse Barnesa2c0a972008-11-05 10:31:53 -0800785 /* Driver private ops for this object */
786 struct vm_operations_struct *gem_vm_ops;
787
Dave Airlie22eae942005-11-10 22:16:34 +1100788 int major;
789 int minor;
790 int patchlevel;
791 char *name;
792 char *desc;
793 char *date;
794
Linus Torvalds1da177e2005-04-16 15:20:36 -0700795 u32 driver_features;
796 int dev_priv_size;
Eric Anholtc153f452007-09-03 12:06:45 +1000797 struct drm_ioctl_desc *ioctls;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700798 int num_ioctls;
799 struct file_operations fops;
800 struct pci_driver pci_driver;
Dave Airliee7f7ab42008-11-28 13:43:47 +1000801 /* List of devices hanging off this driver */
802 struct list_head device_list;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700803};
804
Dave Airlie2c14f282008-04-21 16:47:32 +1000805#define DRM_MINOR_UNASSIGNED 0
806#define DRM_MINOR_LEGACY 1
Dave Airlief453ba02008-11-07 14:05:41 -0800807#define DRM_MINOR_CONTROL 2
808#define DRM_MINOR_RENDER 3
Dave Airlie2c14f282008-04-21 16:47:32 +1000809
Ben Gamari955b12d2009-02-17 20:08:49 -0500810
811/**
812 * debugfs node list. This structure represents a debugfs file to
813 * be created by the drm core
814 */
815struct drm_debugfs_list {
816 const char *name; /** file name */
817 int (*show)(struct seq_file*, void*); /** show callback */
818 u32 driver_features; /**< Required driver features for this entry */
819};
820
821/**
822 * debugfs node structure. This structure represents a debugfs file.
823 */
824struct drm_debugfs_node {
825 struct list_head list;
826 struct drm_minor *minor;
827 struct drm_debugfs_list *debugfs_ent;
828 struct dentry *dent;
829};
830
831/**
832 * Info file list entry. This structure represents a debugfs or proc file to
833 * be created by the drm core
834 */
835struct drm_info_list {
836 const char *name; /** file name */
837 int (*show)(struct seq_file*, void*); /** show callback */
838 u32 driver_features; /**< Required driver features for this entry */
839 void *data;
840};
841
842/**
843 * debugfs node structure. This structure represents a debugfs file.
844 */
845struct drm_info_node {
846 struct list_head list;
847 struct drm_minor *minor;
848 struct drm_info_list *info_ent;
849 struct dentry *dent;
850};
851
Linus Torvalds1da177e2005-04-16 15:20:36 -0700852/**
Dave Airlie2c14f282008-04-21 16:47:32 +1000853 * DRM minor structure. This structure represents a drm minor number.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700854 */
Dave Airlie2c14f282008-04-21 16:47:32 +1000855struct drm_minor {
856 int index; /**< Minor device number */
857 int type; /**< Control or render */
858 dev_t device; /**< Device number for mknod */
859 struct device kdev; /**< Linux device */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700860 struct drm_device *dev;
Ben Gamari955b12d2009-02-17 20:08:49 -0500861
862 struct proc_dir_entry *proc_root; /**< proc directory entry */
863 struct drm_info_node proc_nodes;
864 struct dentry *debugfs_root;
865 struct drm_info_node debugfs_nodes;
866
Dave Airlie7c1c2872008-11-28 14:22:24 +1000867 struct drm_master *master; /* currently active master for this node */
868 struct list_head master_list;
Dave Airlief453ba02008-11-07 14:05:41 -0800869 struct drm_mode_group mode_group;
Dave Airlie84b1fd12007-07-11 15:53:27 +1000870};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700871
872/**
873 * DRM device structure. This structure represent a complete card that
874 * may contain multiple heads.
875 */
Dave Airlie84b1fd12007-07-11 15:53:27 +1000876struct drm_device {
Dave Airliee7f7ab42008-11-28 13:43:47 +1000877 struct list_head driver_item; /**< list of devices per driver */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000878 char *devname; /**< For /proc/interrupts */
879 int if_version; /**< Highest interface version set */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700880
Linus Torvalds1da177e2005-04-16 15:20:36 -0700881 /** \name Locks */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000882 /*@{ */
883 spinlock_t count_lock; /**< For inuse, drm_device::open_count, drm_device::buf_use */
Dave Airlie30e2fb12006-02-02 19:37:46 +1100884 struct mutex struct_mutex; /**< For others */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000885 /*@} */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700886
887 /** \name Usage Counters */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000888 /*@{ */
889 int open_count; /**< Outstanding files open */
890 atomic_t ioctl_count; /**< Outstanding IOCTLs pending */
891 atomic_t vma_count; /**< Outstanding vma areas open */
892 int buf_use; /**< Buffers in use -- cannot alloc */
893 atomic_t buf_alloc; /**< Buffer allocation in progress */
894 /*@} */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700895
896 /** \name Performance counters */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000897 /*@{ */
898 unsigned long counters;
Dave Airliec60ce622007-07-11 15:27:12 +1000899 enum drm_stat_type types[15];
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000900 atomic_t counts[15];
901 /*@} */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700902
Dave Airliebd1b3312007-05-26 05:01:51 +1000903 struct list_head filelist;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700904
905 /** \name Memory management */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000906 /*@{ */
Dave Airliebd1b3312007-05-26 05:01:51 +1000907 struct list_head maplist; /**< Linked list of regions */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000908 int map_count; /**< Number of mappable regions */
Dave Airliee0be4282007-07-12 10:26:44 +1000909 struct drm_open_hash map_hash; /**< User token hash table for maps */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700910
911 /** \name Context handle management */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000912 /*@{ */
Dave Airliebd1b3312007-05-26 05:01:51 +1000913 struct list_head ctxlist; /**< Linked list of context handles */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000914 int ctx_count; /**< Number of context handles */
Dave Airlie30e2fb12006-02-02 19:37:46 +1100915 struct mutex ctxlist_mutex; /**< For ctxlist */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700916
Dave Airlie62968142007-07-17 10:46:52 +1000917 struct idr ctx_idr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700918
Dave Airliebd1b3312007-05-26 05:01:51 +1000919 struct list_head vmalist; /**< List of vmas (for debugging) */
Dave Airlief453ba02008-11-07 14:05:41 -0800920
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000921 /*@} */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700922
923 /** \name DMA queues (contexts) */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000924 /*@{ */
925 int queue_count; /**< Number of active DMA queues */
926 int queue_reserved; /**< Number of reserved DMA queues */
927 int queue_slots; /**< Actual length of queuelist */
Dave Airliecdd55a22007-07-11 16:32:08 +1000928 struct drm_queue **queuelist; /**< Vector of pointers to DMA queues */
929 struct drm_device_dma *dma; /**< Optional pointer for DMA support */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000930 /*@} */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700931
932 /** \name Context support */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000933 /*@{ */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000934 int irq_enabled; /**< True if irq handler is enabled */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700935 __volatile__ long context_flag; /**< Context swapping flag */
936 __volatile__ long interrupt_flag; /**< Interruption handler flag */
937 __volatile__ long dma_flag; /**< DMA dispatch flag */
938 struct timer_list timer; /**< Timer for delaying ctx switch */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000939 wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */
940 int last_checked; /**< Last context checked for DMA */
941 int last_context; /**< Last current context */
942 unsigned long last_switch; /**< jiffies at last context switch */
943 /*@} */
944
945 struct work_struct work;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700946 /** \name VBLANK IRQ support */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000947 /*@{ */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700948
Jesse Barnes0a3e67a2008-09-30 12:14:26 -0700949 /*
950 * At load time, disabling the vblank interrupt won't be allowed since
951 * old clients may not call the modeset ioctl and therefore misbehave.
952 * Once the modeset ioctl *has* been called though, we can safely
953 * disable them when unused.
954 */
955 int vblank_disable_allowed;
956
957 wait_queue_head_t *vbl_queue; /**< VBLANK wait queue */
958 atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000959 spinlock_t vbl_lock;
Jesse Barnes0a3e67a2008-09-30 12:14:26 -0700960 atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */
961 u32 *last_vblank; /* protected by dev->vbl_lock, used */
962 /* for wraparound handling */
963 int *vblank_enabled; /* so we don't call enable more than
964 once per disable */
965 int *vblank_inmodeset; /* Display driver is setting mode */
Eric Anholtfede5c92008-12-19 17:23:38 -0800966 u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */
Jesse Barnes0a3e67a2008-09-30 12:14:26 -0700967 struct timer_list vblank_disable_timer;
968
969 u32 max_vblank_count; /**< size of vblank counter register */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700970
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000971 /*@} */
972 cycles_t ctx_start;
973 cycles_t lck_start;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700974
Linus Torvalds1da177e2005-04-16 15:20:36 -0700975 struct fasync_struct *buf_async;/**< Processes waiting for SIGIO */
976 wait_queue_head_t buf_readers; /**< Processes waiting to read */
977 wait_queue_head_t buf_writers; /**< Processes waiting to ctx switch */
978
Dave Airlie55910512007-07-11 16:53:40 +1000979 struct drm_agp_head *agp; /**< AGP data */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700980
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000981 struct pci_dev *pdev; /**< PCI device structure */
Eric Anholt2f02cc32006-09-22 04:19:34 +1000982 int pci_vendor; /**< PCI vendor id */
983 int pci_device; /**< PCI device id */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700984#ifdef __alpha__
Linus Torvalds1da177e2005-04-16 15:20:36 -0700985 struct pci_controller *hose;
986#endif
Dave Airlie55910512007-07-11 16:53:40 +1000987 struct drm_sg_mem *sg; /**< Scatter gather memory */
Jesse Barnes0a3e67a2008-09-30 12:14:26 -0700988 int num_crtcs; /**< Number of CRTCs on this device */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000989 void *dev_private; /**< device private data */
Jesse Barnesa2c0a972008-11-05 10:31:53 -0800990 void *mm_private;
991 struct address_space *dev_mapping;
Dave Airlie55910512007-07-11 16:53:40 +1000992 struct drm_sigdata sigdata; /**< For block_all_signals */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000993 sigset_t sigmask;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700994
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000995 struct drm_driver *driver;
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +1100996 struct drm_local_map *agp_buffer_map;
Dave Airlied1f2b552005-08-05 22:11:22 +1000997 unsigned int agp_buffer_token;
Dave Airlief453ba02008-11-07 14:05:41 -0800998 struct drm_minor *control; /**< Control node for card */
Dave Airlie2c14f282008-04-21 16:47:32 +1000999 struct drm_minor *primary; /**< render type primary screen head */
=?utf-8?q?Michel_D=C3=A4nzer?=bea56792006-10-24 23:04:19 +10001000
1001 /** \name Drawable information */
1002 /*@{ */
1003 spinlock_t drw_lock;
Dave Airlied4e2cbe2007-07-17 10:55:47 +10001004 struct idr drw_idr;
=?utf-8?q?Michel_D=C3=A4nzer?=bea56792006-10-24 23:04:19 +10001005 /*@} */
Eric Anholt673a3942008-07-30 12:06:12 -07001006
Dave Airlief453ba02008-11-07 14:05:41 -08001007 struct drm_mode_config mode_config; /**< Current mode config */
1008
Eric Anholt673a3942008-07-30 12:06:12 -07001009 /** \name GEM information */
1010 /*@{ */
1011 spinlock_t object_name_lock;
1012 struct idr object_name_idr;
1013 atomic_t object_count;
1014 atomic_t object_memory;
1015 atomic_t pin_count;
1016 atomic_t pin_memory;
1017 atomic_t gtt_count;
1018 atomic_t gtt_memory;
1019 uint32_t gtt_total;
1020 uint32_t invalidate_domains; /* domains pending invalidation */
1021 uint32_t flush_domains; /* domains pending flush */
1022 /*@} */
1023
Dave Airlie84b1fd12007-07-11 15:53:27 +10001024};
Linus Torvalds1da177e2005-04-16 15:20:36 -07001025
Jesse Barnes9bfbd5c2008-09-15 15:00:33 -07001026static inline int drm_dev_to_irq(struct drm_device *dev)
1027{
1028 return dev->pdev->irq;
1029}
1030
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001031static __inline__ int drm_core_check_feature(struct drm_device *dev,
1032 int feature)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001033{
1034 return ((dev->driver->driver_features & feature) ? 1 : 0);
1035}
1036
Dave Airlie332296012006-08-07 20:23:42 +10001037#ifdef __alpha__
Jay Estabrook62442702007-03-11 11:46:27 +11001038#define drm_get_pci_domain(dev) dev->hose->index
Dave Airlie332296012006-08-07 20:23:42 +10001039#else
Dave Airlie9b1a51b2006-09-22 03:37:19 +10001040#define drm_get_pci_domain(dev) 0
Dave Airlie332296012006-08-07 20:23:42 +10001041#endif
1042
Linus Torvalds1da177e2005-04-16 15:20:36 -07001043#if __OS_HAS_AGP
1044static inline int drm_core_has_AGP(struct drm_device *dev)
1045{
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001046 return drm_core_check_feature(dev, DRIVER_USE_AGP);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001047}
1048#else
1049#define drm_core_has_AGP(dev) (0)
1050#endif
1051
1052#if __OS_HAS_MTRR
1053static inline int drm_core_has_MTRR(struct drm_device *dev)
1054{
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001055 return drm_core_check_feature(dev, DRIVER_USE_MTRR);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001056}
Dave Airlie269dc512006-01-02 16:23:01 +11001057
1058#define DRM_MTRR_WC MTRR_TYPE_WRCOMB
1059
1060static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
1061 unsigned int flags)
1062{
1063 return mtrr_add(offset, size, flags, 1);
1064}
1065
1066static inline int drm_mtrr_del(int handle, unsigned long offset,
1067 unsigned long size, unsigned int flags)
1068{
1069 return mtrr_del(handle, offset, size);
1070}
1071
Linus Torvalds1da177e2005-04-16 15:20:36 -07001072#else
1073#define drm_core_has_MTRR(dev) (0)
Dave Airlie9c7d4622006-01-12 20:44:30 +11001074
1075#define DRM_MTRR_WC 0
1076
1077static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
1078 unsigned int flags)
1079{
1080 return 0;
1081}
1082
1083static inline int drm_mtrr_del(int handle, unsigned long offset,
1084 unsigned long size, unsigned int flags)
1085{
1086 return 0;
1087}
Linus Torvalds1da177e2005-04-16 15:20:36 -07001088#endif
1089
1090/******************************************************************/
1091/** \name Internal function definitions */
1092/*@{*/
1093
Linus Torvalds1da177e2005-04-16 15:20:36 -07001094 /* Driver support (drm_drv.h) */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001095extern int drm_init(struct drm_driver *driver);
1096extern void drm_exit(struct drm_driver *driver);
1097extern int drm_ioctl(struct inode *inode, struct file *filp,
1098 unsigned int cmd, unsigned long arg);
1099extern long drm_compat_ioctl(struct file *filp,
1100 unsigned int cmd, unsigned long arg);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001101extern int drm_lastclose(struct drm_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001102
1103 /* Device support (drm_fops.h) */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001104extern int drm_open(struct inode *inode, struct file *filp);
1105extern int drm_stub_open(struct inode *inode, struct file *filp);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001106extern int drm_fasync(int fd, struct file *filp, int on);
1107extern int drm_release(struct inode *inode, struct file *filp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001108
1109 /* Mapping support (drm_vm.h) */
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001110extern int drm_mmap(struct file *filp, struct vm_area_struct *vma);
Jesse Barnesa2c0a972008-11-05 10:31:53 -08001111extern int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma);
1112extern void drm_vm_open_locked(struct vm_area_struct *vma);
Benjamin Herrenschmidt41c2e752009-02-02 16:55:47 +11001113extern resource_size_t drm_core_get_map_ofs(struct drm_local_map * map);
1114extern resource_size_t drm_core_get_reg_ofs(struct drm_device *dev);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001115extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001116
1117 /* Memory management support (drm_memory.h) */
1118#include "drm_memory.h"
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001119extern void drm_mem_init(void);
1120extern int drm_mem_info(char *buf, char **start, off_t offset,
1121 int request, int *eof, void *data);
1122extern void *drm_realloc(void *oldpt, size_t oldsize, size_t size, int area);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001123
Dave Airlie84b1fd12007-07-11 15:53:27 +10001124extern DRM_AGP_MEM *drm_alloc_agp(struct drm_device *dev, int pages, u32 type);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001125extern int drm_free_agp(DRM_AGP_MEM * handle, int pages);
1126extern int drm_bind_agp(DRM_AGP_MEM * handle, unsigned int start);
Eric Anholt673a3942008-07-30 12:06:12 -07001127extern DRM_AGP_MEM *drm_agp_bind_pages(struct drm_device *dev,
1128 struct page **pages,
1129 unsigned long num_pages,
Keith Packardba1eb1d2008-10-14 19:55:10 -07001130 uint32_t gtt_offset,
1131 uint32_t type);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001132extern int drm_unbind_agp(DRM_AGP_MEM * handle);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001133
1134 /* Misc. IOCTL support (drm_ioctl.h) */
Eric Anholtc153f452007-09-03 12:06:45 +10001135extern int drm_irq_by_busid(struct drm_device *dev, void *data,
1136 struct drm_file *file_priv);
1137extern int drm_getunique(struct drm_device *dev, void *data,
1138 struct drm_file *file_priv);
1139extern int drm_setunique(struct drm_device *dev, void *data,
1140 struct drm_file *file_priv);
1141extern int drm_getmap(struct drm_device *dev, void *data,
1142 struct drm_file *file_priv);
1143extern int drm_getclient(struct drm_device *dev, void *data,
1144 struct drm_file *file_priv);
1145extern int drm_getstats(struct drm_device *dev, void *data,
1146 struct drm_file *file_priv);
1147extern int drm_setversion(struct drm_device *dev, void *data,
1148 struct drm_file *file_priv);
1149extern int drm_noop(struct drm_device *dev, void *data,
1150 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001151
1152 /* Context IOCTL support (drm_context.h) */
Eric Anholtc153f452007-09-03 12:06:45 +10001153extern int drm_resctx(struct drm_device *dev, void *data,
1154 struct drm_file *file_priv);
1155extern int drm_addctx(struct drm_device *dev, void *data,
1156 struct drm_file *file_priv);
1157extern int drm_modctx(struct drm_device *dev, void *data,
1158 struct drm_file *file_priv);
1159extern int drm_getctx(struct drm_device *dev, void *data,
1160 struct drm_file *file_priv);
1161extern int drm_switchctx(struct drm_device *dev, void *data,
1162 struct drm_file *file_priv);
1163extern int drm_newctx(struct drm_device *dev, void *data,
1164 struct drm_file *file_priv);
1165extern int drm_rmctx(struct drm_device *dev, void *data,
1166 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001167
Dave Airlie84b1fd12007-07-11 15:53:27 +10001168extern int drm_ctxbitmap_init(struct drm_device *dev);
1169extern void drm_ctxbitmap_cleanup(struct drm_device *dev);
1170extern void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001171
Eric Anholtc153f452007-09-03 12:06:45 +10001172extern int drm_setsareactx(struct drm_device *dev, void *data,
1173 struct drm_file *file_priv);
1174extern int drm_getsareactx(struct drm_device *dev, void *data,
1175 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001176
1177 /* Drawable IOCTL support (drm_drawable.h) */
Eric Anholtc153f452007-09-03 12:06:45 +10001178extern int drm_adddraw(struct drm_device *dev, void *data,
1179 struct drm_file *file_priv);
1180extern int drm_rmdraw(struct drm_device *dev, void *data,
1181 struct drm_file *file_priv);
1182extern int drm_update_drawable_info(struct drm_device *dev, void *data,
1183 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001184extern struct drm_drawable_info *drm_get_drawable_info(struct drm_device *dev,
=?utf-8?q?Michel_D=C3=A4nzer?=bea56792006-10-24 23:04:19 +10001185 drm_drawable_t id);
Dave Airlied4e2cbe2007-07-17 10:55:47 +10001186extern void drm_drawable_free_all(struct drm_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001187
1188 /* Authentication IOCTL support (drm_auth.h) */
Eric Anholtc153f452007-09-03 12:06:45 +10001189extern int drm_getmagic(struct drm_device *dev, void *data,
1190 struct drm_file *file_priv);
1191extern int drm_authmagic(struct drm_device *dev, void *data,
1192 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001193
Eric Anholt673a3942008-07-30 12:06:12 -07001194/* Cache management (drm_cache.c) */
1195void drm_clflush_pages(struct page *pages[], unsigned long num_pages);
1196
Linus Torvalds1da177e2005-04-16 15:20:36 -07001197 /* Locking IOCTL support (drm_lock.h) */
Eric Anholtc153f452007-09-03 12:06:45 +10001198extern int drm_lock(struct drm_device *dev, void *data,
1199 struct drm_file *file_priv);
1200extern int drm_unlock(struct drm_device *dev, void *data,
1201 struct drm_file *file_priv);
Dave Airlie55910512007-07-11 16:53:40 +10001202extern int drm_lock_take(struct drm_lock_data *lock_data, unsigned int context);
1203extern int drm_lock_free(struct drm_lock_data *lock_data, unsigned int context);
1204extern void drm_idlelock_take(struct drm_lock_data *lock_data);
1205extern void drm_idlelock_release(struct drm_lock_data *lock_data);
Thomas Hellstrom040ac322007-03-23 13:28:33 +11001206
1207/*
1208 * These are exported to drivers so that they can implement fencing using
1209 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
1210 */
1211
Eric Anholtc153f452007-09-03 12:06:45 +10001212extern int drm_i_have_hw_lock(struct drm_device *dev, struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001213
1214 /* Buffer management support (drm_bufs.h) */
Dave Airlie84b1fd12007-07-11 15:53:27 +10001215extern int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc * request);
1216extern int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc * request);
Benjamin Herrenschmidt41c2e752009-02-02 16:55:47 +11001217extern int drm_addmap(struct drm_device *dev, resource_size_t offset,
Dave Airliec60ce622007-07-11 15:27:12 +10001218 unsigned int size, enum drm_map_type type,
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +11001219 enum drm_map_flags flags, struct drm_local_map **map_ptr);
Eric Anholtc153f452007-09-03 12:06:45 +10001220extern int drm_addmap_ioctl(struct drm_device *dev, void *data,
1221 struct drm_file *file_priv);
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +11001222extern int drm_rmmap(struct drm_device *dev, struct drm_local_map *map);
1223extern int drm_rmmap_locked(struct drm_device *dev, struct drm_local_map *map);
Eric Anholtc153f452007-09-03 12:06:45 +10001224extern int drm_rmmap_ioctl(struct drm_device *dev, void *data,
1225 struct drm_file *file_priv);
1226extern int drm_addbufs(struct drm_device *dev, void *data,
1227 struct drm_file *file_priv);
1228extern int drm_infobufs(struct drm_device *dev, void *data,
1229 struct drm_file *file_priv);
1230extern int drm_markbufs(struct drm_device *dev, void *data,
1231 struct drm_file *file_priv);
1232extern int drm_freebufs(struct drm_device *dev, void *data,
1233 struct drm_file *file_priv);
1234extern int drm_mapbufs(struct drm_device *dev, void *data,
1235 struct drm_file *file_priv);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001236extern int drm_order(unsigned long size);
Benjamin Herrenschmidtd883f7f2009-02-02 16:55:45 +11001237extern resource_size_t drm_get_resource_start(struct drm_device *dev,
1238 unsigned int resource);
1239extern resource_size_t drm_get_resource_len(struct drm_device *dev,
Dave Airlie836cf042005-07-10 19:27:04 +10001240 unsigned int resource);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001241
1242 /* DMA support (drm_dma.h) */
Dave Airlie84b1fd12007-07-11 15:53:27 +10001243extern int drm_dma_setup(struct drm_device *dev);
1244extern void drm_dma_takedown(struct drm_device *dev);
Dave Airlie056219e2007-07-11 16:17:42 +10001245extern void drm_free_buffer(struct drm_device *dev, struct drm_buf * buf);
Eric Anholt6c340ea2007-08-25 20:23:09 +10001246extern void drm_core_reclaim_buffers(struct drm_device *dev,
1247 struct drm_file *filp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001248
1249 /* IRQ support (drm_irq.h) */
Eric Anholtc153f452007-09-03 12:06:45 +10001250extern int drm_control(struct drm_device *dev, void *data,
1251 struct drm_file *file_priv);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001252extern irqreturn_t drm_irq_handler(DRM_IRQ_ARGS);
Kristian Høgsbergdbb19d32008-08-20 11:04:27 -04001253extern int drm_irq_install(struct drm_device *dev);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001254extern int drm_irq_uninstall(struct drm_device *dev);
1255extern void drm_driver_irq_preinstall(struct drm_device *dev);
1256extern void drm_driver_irq_postinstall(struct drm_device *dev);
1257extern void drm_driver_irq_uninstall(struct drm_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001258
Jesse Barnes0a3e67a2008-09-30 12:14:26 -07001259extern int drm_vblank_init(struct drm_device *dev, int num_crtcs);
Dave Airlieaf6061a2008-05-07 12:15:39 +10001260extern int drm_wait_vblank(struct drm_device *dev, void *data,
Jesse Barnes0a3e67a2008-09-30 12:14:26 -07001261 struct drm_file *filp);
Dave Airlieaf6061a2008-05-07 12:15:39 +10001262extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq);
Jesse Barnes0a3e67a2008-09-30 12:14:26 -07001263extern u32 drm_vblank_count(struct drm_device *dev, int crtc);
1264extern void drm_handle_vblank(struct drm_device *dev, int crtc);
1265extern int drm_vblank_get(struct drm_device *dev, int crtc);
1266extern void drm_vblank_put(struct drm_device *dev, int crtc);
Keith Packard52440212008-11-18 09:30:25 -08001267extern void drm_vblank_cleanup(struct drm_device *dev);
Jesse Barnes0a3e67a2008-09-30 12:14:26 -07001268/* Modesetting support */
Dave Airlief453ba02008-11-07 14:05:41 -08001269extern void drm_vblank_pre_modeset(struct drm_device *dev, int crtc);
1270extern void drm_vblank_post_modeset(struct drm_device *dev, int crtc);
Jesse Barnes0a3e67a2008-09-30 12:14:26 -07001271extern int drm_modeset_ctl(struct drm_device *dev, void *data,
1272 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001273
1274 /* AGP/GART support (drm_agpsupport.h) */
Dave Airlie55910512007-07-11 16:53:40 +10001275extern struct drm_agp_head *drm_agp_init(struct drm_device *dev);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001276extern int drm_agp_acquire(struct drm_device *dev);
Eric Anholtc153f452007-09-03 12:06:45 +10001277extern int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
1278 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001279extern int drm_agp_release(struct drm_device *dev);
Eric Anholtc153f452007-09-03 12:06:45 +10001280extern int drm_agp_release_ioctl(struct drm_device *dev, void *data,
1281 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001282extern int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode);
Eric Anholtc153f452007-09-03 12:06:45 +10001283extern int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
1284 struct drm_file *file_priv);
1285extern int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info);
1286extern int drm_agp_info_ioctl(struct drm_device *dev, void *data,
1287 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001288extern int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request);
Eric Anholtc153f452007-09-03 12:06:45 +10001289extern int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
1290 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001291extern int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request);
Eric Anholtc153f452007-09-03 12:06:45 +10001292extern int drm_agp_free_ioctl(struct drm_device *dev, void *data,
1293 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001294extern int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request);
Eric Anholtc153f452007-09-03 12:06:45 +10001295extern int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
1296 struct drm_file *file_priv);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001297extern int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
Eric Anholtc153f452007-09-03 12:06:45 +10001298extern int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
1299 struct drm_file *file_priv);
1300extern DRM_AGP_MEM *drm_agp_allocate_memory(struct agp_bridge_data *bridge, size_t pages, u32 type);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001301extern int drm_agp_free_memory(DRM_AGP_MEM * handle);
1302extern int drm_agp_bind_memory(DRM_AGP_MEM * handle, off_t start);
1303extern int drm_agp_unbind_memory(DRM_AGP_MEM * handle);
Eric Anholt673a3942008-07-30 12:06:12 -07001304extern void drm_agp_chipset_flush(struct drm_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001305
1306 /* Stub support (drm_stub.h) */
Dave Airlie7c1c2872008-11-28 14:22:24 +10001307extern int drm_setmaster_ioctl(struct drm_device *dev, void *data,
1308 struct drm_file *file_priv);
1309extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
1310 struct drm_file *file_priv);
1311struct drm_master *drm_master_create(struct drm_minor *minor);
1312extern struct drm_master *drm_master_get(struct drm_master *master);
1313extern void drm_master_put(struct drm_master **master);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001314extern int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001315 struct drm_driver *driver);
Kristian Høgsberg112b7152009-01-04 16:55:33 -05001316extern void drm_put_dev(struct drm_device *dev);
Dave Airlie2c14f282008-04-21 16:47:32 +10001317extern int drm_put_minor(struct drm_minor **minor);
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001318extern unsigned int drm_debug;
Dave Airlie2c14f282008-04-21 16:47:32 +10001319
Greg Kroah-Hartman0650fd52006-01-20 14:08:59 -08001320extern struct class *drm_class;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001321extern struct proc_dir_entry *drm_proc_root;
Ben Gamari955b12d2009-02-17 20:08:49 -05001322extern struct dentry *drm_debugfs_root;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001323
Dave Airlie2c14f282008-04-21 16:47:32 +10001324extern struct idr drm_minors_idr;
1325
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +11001326extern struct drm_local_map *drm_getsarea(struct drm_device *dev);
Dave Airlieda509d72007-05-26 05:04:51 +10001327
Linus Torvalds1da177e2005-04-16 15:20:36 -07001328 /* Proc support (drm_proc.h) */
Dave Airlie2c14f282008-04-21 16:47:32 +10001329extern int drm_proc_init(struct drm_minor *minor, int minor_id,
1330 struct proc_dir_entry *root);
1331extern int drm_proc_cleanup(struct drm_minor *minor, struct proc_dir_entry *root);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001332
Ben Gamari955b12d2009-02-17 20:08:49 -05001333 /* Debugfs support */
1334#if defined(CONFIG_DEBUG_FS)
1335extern int drm_debugfs_init(struct drm_minor *minor, int minor_id,
1336 struct dentry *root);
1337extern int drm_debugfs_create_files(struct drm_info_list *files, int count,
1338 struct dentry *root, struct drm_minor *minor);
1339extern int drm_debugfs_remove_files(struct drm_info_list *files, int count,
1340 struct drm_minor *minor);
1341extern int drm_debugfs_cleanup(struct drm_minor *minor);
1342#endif
1343
1344 /* Info file support */
1345extern int drm_name_info(struct seq_file *m, void *data);
1346extern int drm_vm_info(struct seq_file *m, void *data);
1347extern int drm_queues_info(struct seq_file *m, void *data);
1348extern int drm_bufs_info(struct seq_file *m, void *data);
1349extern int drm_vblank_info(struct seq_file *m, void *data);
1350extern int drm_clients_info(struct seq_file *m, void* data);
1351extern int drm_gem_name_info(struct seq_file *m, void *data);
1352extern int drm_gem_object_info(struct seq_file *m, void* data);
1353
1354#if DRM_DEBUG_CODE
1355extern int drm_vma_info(struct seq_file *m, void *data);
1356#endif
1357
Linus Torvalds1da177e2005-04-16 15:20:36 -07001358 /* Scatter Gather Support (drm_scatter.h) */
Dave Airlie55910512007-07-11 16:53:40 +10001359extern void drm_sg_cleanup(struct drm_sg_mem * entry);
Eric Anholtc153f452007-09-03 12:06:45 +10001360extern int drm_sg_alloc_ioctl(struct drm_device *dev, void *data,
1361 struct drm_file *file_priv);
1362extern int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request);
1363extern int drm_sg_free(struct drm_device *dev, void *data,
1364 struct drm_file *file_priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001365
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001366 /* ATI PCIGART support (ati_pcigart.h) */
Dave Airlie84b1fd12007-07-11 15:53:27 +10001367extern int drm_ati_pcigart_init(struct drm_device *dev,
Dave Airlie55910512007-07-11 16:53:40 +10001368 struct drm_ati_pcigart_info * gart_info);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001369extern int drm_ati_pcigart_cleanup(struct drm_device *dev,
Dave Airlie55910512007-07-11 16:53:40 +10001370 struct drm_ati_pcigart_info * gart_info);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001371
Dave Airlie84b1fd12007-07-11 15:53:27 +10001372extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
Dave Airlie9c8da5e2005-07-10 15:38:56 +10001373 size_t align, dma_addr_t maxaddr);
Dave Airlie84b1fd12007-07-11 15:53:27 +10001374extern void __drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
1375extern void drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001376
1377 /* sysfs support (drm_sysfs.c) */
Jesse Barnese8b962b2007-11-22 14:02:38 +10001378struct drm_sysfs_class;
Greg Kroah-Hartman0650fd52006-01-20 14:08:59 -08001379extern struct class *drm_sysfs_create(struct module *owner, char *name);
Jesse Barnese8b962b2007-11-22 14:02:38 +10001380extern void drm_sysfs_destroy(void);
Dave Airlie2c14f282008-04-21 16:47:32 +10001381extern int drm_sysfs_device_add(struct drm_minor *minor);
Dave Airlief453ba02008-11-07 14:05:41 -08001382extern void drm_sysfs_hotplug_event(struct drm_device *dev);
Dave Airlie2c14f282008-04-21 16:47:32 +10001383extern void drm_sysfs_device_remove(struct drm_minor *minor);
Dave Airlief453ba02008-11-07 14:05:41 -08001384extern char *drm_get_connector_status_name(enum drm_connector_status status);
1385extern int drm_sysfs_connector_add(struct drm_connector *connector);
1386extern void drm_sysfs_connector_remove(struct drm_connector *connector);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001387
Thomas Hellstrom3a1bd922006-08-07 21:30:28 +10001388/*
1389 * Basic memory manager support (drm_mm.c)
1390 */
Dave Airlie55910512007-07-11 16:53:40 +10001391extern struct drm_mm_node *drm_mm_get_block(struct drm_mm_node * parent,
Thomas Hellstrom3a1bd922006-08-07 21:30:28 +10001392 unsigned long size,
1393 unsigned alignment);
Dave Airlie8562b3f2007-11-05 12:37:41 +10001394extern void drm_mm_put_block(struct drm_mm_node * cur);
Dave Airlie55910512007-07-11 16:53:40 +10001395extern struct drm_mm_node *drm_mm_search_free(const struct drm_mm *mm, unsigned long size,
Thomas Hellstrom3a1bd922006-08-07 21:30:28 +10001396 unsigned alignment, int best_match);
Dave Airlie55910512007-07-11 16:53:40 +10001397extern int drm_mm_init(struct drm_mm *mm, unsigned long start, unsigned long size);
1398extern void drm_mm_takedown(struct drm_mm *mm);
1399extern int drm_mm_clean(struct drm_mm *mm);
1400extern unsigned long drm_mm_tail_space(struct drm_mm *mm);
1401extern int drm_mm_remove_space_from_tail(struct drm_mm *mm, unsigned long size);
1402extern int drm_mm_add_space_to_tail(struct drm_mm *mm, unsigned long size);
Thomas Hellstrom3a1bd922006-08-07 21:30:28 +10001403
Eric Anholt673a3942008-07-30 12:06:12 -07001404/* Graphics Execution Manager library functions (drm_gem.c) */
1405int drm_gem_init(struct drm_device *dev);
Jesse Barnesa2c0a972008-11-05 10:31:53 -08001406void drm_gem_destroy(struct drm_device *dev);
Eric Anholt673a3942008-07-30 12:06:12 -07001407void drm_gem_object_free(struct kref *kref);
1408struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev,
1409 size_t size);
1410void drm_gem_object_handle_free(struct kref *kref);
Jesse Barnesab00b3e2009-02-11 14:01:46 -08001411void drm_gem_vm_open(struct vm_area_struct *vma);
1412void drm_gem_vm_close(struct vm_area_struct *vma);
Jesse Barnesa2c0a972008-11-05 10:31:53 -08001413int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
Eric Anholt673a3942008-07-30 12:06:12 -07001414
1415static inline void
1416drm_gem_object_reference(struct drm_gem_object *obj)
1417{
1418 kref_get(&obj->refcount);
1419}
1420
1421static inline void
1422drm_gem_object_unreference(struct drm_gem_object *obj)
1423{
1424 if (obj == NULL)
1425 return;
1426
1427 kref_put(&obj->refcount, drm_gem_object_free);
1428}
1429
1430int drm_gem_handle_create(struct drm_file *file_priv,
1431 struct drm_gem_object *obj,
1432 int *handlep);
1433
1434static inline void
1435drm_gem_object_handle_reference(struct drm_gem_object *obj)
1436{
1437 drm_gem_object_reference(obj);
1438 kref_get(&obj->handlecount);
1439}
1440
1441static inline void
1442drm_gem_object_handle_unreference(struct drm_gem_object *obj)
1443{
1444 if (obj == NULL)
1445 return;
1446
1447 /*
1448 * Must bump handle count first as this may be the last
1449 * ref, in which case the object would disappear before we
1450 * checked for a name
1451 */
1452 kref_put(&obj->handlecount, drm_gem_object_handle_free);
1453 drm_gem_object_unreference(obj);
1454}
1455
1456struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev,
1457 struct drm_file *filp,
1458 int handle);
1459int drm_gem_close_ioctl(struct drm_device *dev, void *data,
1460 struct drm_file *file_priv);
1461int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
1462 struct drm_file *file_priv);
1463int drm_gem_open_ioctl(struct drm_device *dev, void *data,
1464 struct drm_file *file_priv);
1465void drm_gem_open(struct drm_device *dev, struct drm_file *file_private);
1466void drm_gem_release(struct drm_device *dev, struct drm_file *file_private);
1467
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +11001468extern void drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev);
1469extern void drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev);
1470extern void drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001471
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +11001472static __inline__ struct drm_local_map *drm_core_findmap(struct drm_device *dev,
1473 unsigned int token)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001474{
Dave Airlie55910512007-07-11 16:53:40 +10001475 struct drm_map_list *_entry;
Dave Airliebd1b3312007-05-26 05:01:51 +10001476 list_for_each_entry(_entry, &dev->maplist, head)
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001477 if (_entry->user_token == token)
1478 return _entry->map;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001479 return NULL;
1480}
1481
Dave Airlie84b1fd12007-07-11 15:53:27 +10001482static __inline__ int drm_device_is_agp(struct drm_device *dev)
Dave Airliecda17382005-07-10 17:31:26 +10001483{
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001484 if (dev->driver->device_is_agp != NULL) {
1485 int err = (*dev->driver->device_is_agp) (dev);
1486
Dave Airliecda17382005-07-10 17:31:26 +10001487 if (err != 2) {
1488 return err;
1489 }
1490 }
1491
1492 return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP);
1493}
1494
Dave Airlie84b1fd12007-07-11 15:53:27 +10001495static __inline__ int drm_device_is_pcie(struct drm_device *dev)
Dave Airlieea98a922005-09-11 20:28:11 +10001496{
1497 return pci_find_capability(dev->pdev, PCI_CAP_ID_EXP);
1498}
1499
Benjamin Herrenschmidtf77d3902009-02-02 16:55:46 +11001500static __inline__ void drm_core_dropmap(struct drm_local_map *map)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001501{
1502}
1503
1504#ifndef DEBUG_MEMORY
1505/** Wrapper around kmalloc() */
1506static __inline__ void *drm_alloc(size_t size, int area)
1507{
1508 return kmalloc(size, GFP_KERNEL);
1509}
1510
1511/** Wrapper around kfree() */
1512static __inline__ void drm_free(void *pt, size_t size, int area)
1513{
1514 kfree(pt);
1515}
Dave Airlieb9523242005-07-07 20:33:26 +10001516
1517/** Wrapper around kcalloc() */
1518static __inline__ void *drm_calloc(size_t nmemb, size_t size, int area)
1519{
1520 return kcalloc(nmemb, size, GFP_KERNEL);
1521}
Linus Torvalds1da177e2005-04-16 15:20:36 -07001522#else
1523extern void *drm_alloc(size_t size, int area);
1524extern void drm_free(void *pt, size_t size, int area);
Dave Airlieb9523242005-07-07 20:33:26 +10001525extern void *drm_calloc(size_t nmemb, size_t size, int area);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001526#endif
1527
1528/*@}*/
1529
Dave Airlieb5e89ed2005-09-25 14:28:13 +10001530#endif /* __KERNEL__ */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001531#endif