drmP.h 55.0 KB
Newer Older
L
Linus Torvalds 已提交
1
/**
D
Dave Airlie 已提交
2
 * \file drmP.h
L
Linus Torvalds 已提交
3
 * Private header for Direct Rendering Manager
D
Dave Airlie 已提交
4
 *
L
Linus Torvalds 已提交
5 6 7 8 9 10 11
 * \author Rickard E. (Rik) Faith <faith@valinux.com>
 * \author Gareth Hughes <gareth@valinux.com>
 */

/*
 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
12
 * Copyright (c) 2009-2010, Code Aurora Forum.
L
Linus Torvalds 已提交
13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43
 * All rights reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */

#ifndef _DRM_P_H_
#define _DRM_P_H_

#ifdef __KERNEL__
#ifdef __alpha__
/* add include of current.h so that "current" is defined
 * before static inline funcs in wait.h. Doing this so we
 * can build the DRM (part of PI DRI). 4/21/2000 S + B */
#include <asm/current.h>
D
Dave Airlie 已提交
44
#endif				/* __alpha__ */
L
Linus Torvalds 已提交
45 46 47 48 49
#include <linux/kernel.h>
#include <linux/miscdevice.h>
#include <linux/fs.h>
#include <linux/init.h>
#include <linux/file.h>
50
#include <linux/platform_device.h>
L
Linus Torvalds 已提交
51 52
#include <linux/pci.h>
#include <linux/jiffies.h>
53
#include <linux/dma-mapping.h>
L
Linus Torvalds 已提交
54 55
#include <linux/mm.h>
#include <linux/cdev.h>
D
Dave Airlie 已提交
56
#include <linux/mutex.h>
57
#include <linux/io.h>
58
#include <linux/slab.h>
R
Rob Clark 已提交
59
#include <linux/ratelimit.h>
L
Linus Torvalds 已提交
60
#if defined(__alpha__) || defined(__powerpc__)
D
Dave Airlie 已提交
61
#include <asm/pgtable.h>	/* For pte_wrprotect */
L
Linus Torvalds 已提交
62 63 64 65 66 67 68 69
#endif
#include <asm/mman.h>
#include <asm/uaccess.h>
#include <linux/types.h>
#include <linux/agp_backend.h>
#include <linux/workqueue.h>
#include <linux/poll.h>
#include <asm/pgalloc.h>
70 71
#include <drm/drm.h>
#include <drm/drm_sarea.h>
72
#include <drm/drm_vma_manager.h>
L
Linus Torvalds 已提交
73

74 75
#include <linux/idr.h>

L
Linus Torvalds 已提交
76 77
#define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE)))

78 79
struct module;

80 81 82
struct drm_file;
struct drm_device;

83
struct device_node;
84 85
struct videomode;

86 87 88
#include <drm/drm_os_linux.h>
#include <drm/drm_hashtab.h>
#include <drm/drm_mm.h>
L
Linus Torvalds 已提交
89

90 91 92
#define DRM_UT_CORE 		0x01
#define DRM_UT_DRIVER		0x02
#define DRM_UT_KMS		0x04
93
#define DRM_UT_PRIME		0x08
94 95 96 97 98
/*
 * Three debug levels are defined.
 * drm_core, drm_driver, drm_kms
 * drm_core level can be used in the generic drm code. For example:
 * 	drm_ioctl, drm_mm, drm_memory
L
Lucas De Marchi 已提交
99
 * The macro definition of DRM_DEBUG is used.
100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124
 * 	DRM_DEBUG(fmt, args...)
 * 	The debug info by using the DRM_DEBUG can be obtained by adding
 * 	the boot option of "drm.debug=1".
 *
 * drm_driver level can be used in the specific drm driver. It is used
 * to add the debug info related with the drm driver. For example:
 * i915_drv, i915_dma, i915_gem, radeon_drv,
 * 	The macro definition of DRM_DEBUG_DRIVER can be used.
 * 	DRM_DEBUG_DRIVER(fmt, args...)
 * 	The debug info by using the DRM_DEBUG_DRIVER can be obtained by
 * 	adding the boot option of "drm.debug=0x02"
 *
 * drm_kms level can be used in the KMS code related with specific drm driver.
 * It is used to add the debug info related with KMS mode. For example:
 * the connector/crtc ,
 * 	The macro definition of DRM_DEBUG_KMS can be used.
 * 	DRM_DEBUG_KMS(fmt, args...)
 * 	The debug info by using the DRM_DEBUG_KMS can be obtained by
 * 	adding the boot option of "drm.debug=0x04"
 *
 * If we add the boot option of "drm.debug=0x06", we can get the debug info by
 * using the DRM_DEBUG_KMS and DRM_DEBUG_DRIVER.
 * If we add the boot option of "drm.debug=0x05", we can get the debug info by
 * using the DRM_DEBUG_KMS and DRM_DEBUG.
 */
125

126
extern __printf(4, 5)
127
void drm_ut_debug_printk(unsigned int request_level,
128 129 130 131
			 const char *prefix,
			 const char *function_name,
			 const char *format, ...);
extern __printf(2, 3)
J
Joe Perches 已提交
132 133
int drm_err(const char *func, const char *format, ...);

L
Linus Torvalds 已提交
134 135 136 137 138 139 140 141 142 143 144
/***********************************************************************/
/** \name DRM template customization defaults */
/*@{*/

/* driver capabilities and requirements mask */
#define DRIVER_USE_AGP     0x1
#define DRIVER_PCI_DMA     0x8
#define DRIVER_SG          0x10
#define DRIVER_HAVE_DMA    0x20
#define DRIVER_HAVE_IRQ    0x40
#define DRIVER_IRQ_SHARED  0x80
145
#define DRIVER_GEM         0x1000
D
Dave Airlie 已提交
146
#define DRIVER_MODESET     0x2000
147
#define DRIVER_PRIME       0x4000
148
#define DRIVER_RENDER      0x8000
149 150 151 152

#define DRIVER_BUS_PCI 0x1
#define DRIVER_BUS_PLATFORM 0x2
#define DRIVER_BUS_USB 0x3
153
#define DRIVER_BUS_HOST1X 0x4
L
Linus Torvalds 已提交
154 155 156 157 158 159 160 161

/***********************************************************************/
/** \name Begin the DRM... */
/*@{*/

#define DRM_DEBUG_CODE 2	  /**< Include debugging code if > 1, then
				     also include looping detection. */

162
#define DRM_MAGIC_HASH_ORDER  4  /**< Size of key hash table. Must be power of 2. */
L
Linus Torvalds 已提交
163 164 165
#define DRM_KERNEL_CONTEXT    0	 /**< Change drm_resctx if changed */
#define DRM_RESERVED_CONTEXTS 1	 /**< Change drm_resctx if changed */

166
#define DRM_MAP_HASH_OFFSET 0x10000000
L
Linus Torvalds 已提交
167

D
Dave Airlie 已提交
168
/*@}*/
L
Linus Torvalds 已提交
169 170 171 172 173 174 175 176 177 178 179

/***********************************************************************/
/** \name Macros to make printk easier */
/*@{*/

/**
 * Error output.
 *
 * \param fmt printf() like format string.
 * \param arg arguments
 */
J
Joe Perches 已提交
180 181
#define DRM_ERROR(fmt, ...)				\
	drm_err(__func__, fmt, ##__VA_ARGS__)
L
Linus Torvalds 已提交
182

R
Rob Clark 已提交
183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198
/**
 * Rate limited error output.  Like DRM_ERROR() but won't flood the log.
 *
 * \param fmt printf() like format string.
 * \param arg arguments
 */
#define DRM_ERROR_RATELIMITED(fmt, ...)				\
({									\
	static DEFINE_RATELIMIT_STATE(_rs,				\
				      DEFAULT_RATELIMIT_INTERVAL,	\
				      DEFAULT_RATELIMIT_BURST);		\
									\
	if (__ratelimit(&_rs))						\
		drm_err(__func__, fmt, ##__VA_ARGS__);			\
})

J
Joe Perches 已提交
199 200
#define DRM_INFO(fmt, ...)				\
	printk(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__)
L
Linus Torvalds 已提交
201 202 203

/**
 * Debug output.
D
Dave Airlie 已提交
204
 *
L
Linus Torvalds 已提交
205 206 207 208
 * \param fmt printf() like format string.
 * \param arg arguments
 */
#if DRM_DEBUG_CODE
209
#define DRM_DEBUG(fmt, args...)						\
L
Linus Torvalds 已提交
210
	do {								\
211 212 213 214
		drm_ut_debug_printk(DRM_UT_CORE, DRM_NAME, 		\
					__func__, fmt, ##args);		\
	} while (0)

215
#define DRM_DEBUG_DRIVER(fmt, args...)					\
216
	do {								\
217
		drm_ut_debug_printk(DRM_UT_DRIVER, DRM_NAME,		\
218 219
					__func__, fmt, ##args);		\
	} while (0)
220
#define DRM_DEBUG_KMS(fmt, args...)				\
221
	do {								\
222
		drm_ut_debug_printk(DRM_UT_KMS, DRM_NAME, 		\
223 224
					 __func__, fmt, ##args);	\
	} while (0)
225 226 227 228 229
#define DRM_DEBUG_PRIME(fmt, args...)					\
	do {								\
		drm_ut_debug_printk(DRM_UT_PRIME, DRM_NAME,		\
					__func__, fmt, ##args);		\
	} while (0)
230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248
#define DRM_LOG(fmt, args...)						\
	do {								\
		drm_ut_debug_printk(DRM_UT_CORE, NULL,			\
					NULL, fmt, ##args);		\
	} while (0)
#define DRM_LOG_KMS(fmt, args...)					\
	do {								\
		drm_ut_debug_printk(DRM_UT_KMS, NULL,			\
					NULL, fmt, ##args);		\
	} while (0)
#define DRM_LOG_MODE(fmt, args...)					\
	do {								\
		drm_ut_debug_printk(DRM_UT_MODE, NULL,			\
					NULL, fmt, ##args);		\
	} while (0)
#define DRM_LOG_DRIVER(fmt, args...)					\
	do {								\
		drm_ut_debug_printk(DRM_UT_DRIVER, NULL,		\
					NULL, fmt, ##args);		\
L
Linus Torvalds 已提交
249 250
	} while (0)
#else
251 252
#define DRM_DEBUG_DRIVER(fmt, args...) do { } while (0)
#define DRM_DEBUG_KMS(fmt, args...)	do { } while (0)
253
#define DRM_DEBUG_PRIME(fmt, args...)	do { } while (0)
L
Linus Torvalds 已提交
254
#define DRM_DEBUG(fmt, arg...)		 do { } while (0)
255 256 257 258 259
#define DRM_LOG(fmt, arg...)		do { } while (0)
#define DRM_LOG_KMS(fmt, args...) do { } while (0)
#define DRM_LOG_MODE(fmt, arg...) do { } while (0)
#define DRM_LOG_DRIVER(fmt, arg...) do { } while (0)

L
Linus Torvalds 已提交
260 261 262 263 264 265 266 267
#endif

/*@}*/

/***********************************************************************/
/** \name Internal types and structures */
/*@{*/

D
Dave Airlie 已提交
268
#define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x)
L
Linus Torvalds 已提交
269 270 271 272 273 274 275 276 277

#define DRM_IF_VERSION(maj, min) (maj << 16 | min)

/**
 * Test that the hardware lock is held by the caller, returning otherwise.
 *
 * \param dev DRM device.
 * \param filp file pointer of the caller.
 */
278 279 280 281
#define LOCK_TEST_WITH_RETURN( dev, _file_priv )				\
do {										\
	if (!_DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock) ||	\
	    _file_priv->master->lock.file_priv != _file_priv)	{		\
282
		DRM_ERROR( "%s called without lock held, held  %d owner %p %p\n",\
283 284 285 286
			   __func__, _DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock),\
			   _file_priv->master->lock.file_priv, _file_priv);	\
		return -EINVAL;							\
	}									\
L
Linus Torvalds 已提交
287 288 289 290 291 292
} while (0)

/**
 * Ioctl function type.
 *
 * \param inode device inode.
293
 * \param file_priv DRM file private pointer.
L
Linus Torvalds 已提交
294 295 296
 * \param cmd command.
 * \param arg argument.
 */
297 298
typedef int drm_ioctl_t(struct drm_device *dev, void *data,
			struct drm_file *file_priv);
L
Linus Torvalds 已提交
299

300 301 302
typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
			       unsigned long arg);

303 304 305
#define DRM_IOCTL_NR(n)                _IOC_NR(n)
#define DRM_MAJOR       226

306 307 308
#define DRM_AUTH	0x1
#define	DRM_MASTER	0x2
#define DRM_ROOT_ONLY	0x4
D
Dave Airlie 已提交
309
#define DRM_CONTROL_ALLOW 0x8
310
#define DRM_UNLOCKED	0x10
311
#define DRM_RENDER_ALLOW 0x20
312

313 314
struct drm_ioctl_desc {
	unsigned int cmd;
315
	int flags;
316
	drm_ioctl_t *func;
317
	unsigned int cmd_drv;
318
	const char *name;
319 320 321 322 323 324
};

/**
 * Creates a driver or general drm_ioctl_desc array entry for the given
 * ioctl, for use by drm_ioctl().
 */
325 326

#define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags)			\
327
	[DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl, .name = #ioctl}
L
Linus Torvalds 已提交
328

329
struct drm_magic_entry {
330
	struct list_head head;
331
	struct drm_hash_item hash_item;
D
Dave Airlie 已提交
332
	struct drm_file *priv;
333
};
L
Linus Torvalds 已提交
334

335
struct drm_vma_entry {
336
	struct list_head head;
L
Linus Torvalds 已提交
337
	struct vm_area_struct *vma;
D
Dave Airlie 已提交
338
	pid_t pid;
339
};
L
Linus Torvalds 已提交
340 341 342 343

/**
 * DMA buffer.
 */
D
Dave Airlie 已提交
344
struct drm_buf {
D
Dave Airlie 已提交
345 346 347 348 349 350 351 352 353 354
	int idx;		       /**< Index into master buflist */
	int total;		       /**< Buffer size */
	int order;		       /**< log-base-2(total) */
	int used;		       /**< Amount of buffer in use (for DMA) */
	unsigned long offset;	       /**< Byte offset (used internally) */
	void *address;		       /**< Address of buffer */
	unsigned long bus_address;     /**< Bus address of buffer */
	struct drm_buf *next;	       /**< Kernel-only: used for free list */
	__volatile__ int waiting;      /**< On kernel DMA queue */
	__volatile__ int pending;      /**< On hardware DMA queue */
355
	struct drm_file *file_priv;    /**< Private of holding file descr */
D
Dave Airlie 已提交
356 357
	int context;		       /**< Kernel queue for this buffer */
	int while_locked;	       /**< Dispatch this buffer while locked */
L
Linus Torvalds 已提交
358
	enum {
D
Dave Airlie 已提交
359 360 361 362 363
		DRM_LIST_NONE = 0,
		DRM_LIST_FREE = 1,
		DRM_LIST_WAIT = 2,
		DRM_LIST_PEND = 3,
		DRM_LIST_PRIO = 4,
L
Linus Torvalds 已提交
364
		DRM_LIST_RECLAIM = 5
D
Dave Airlie 已提交
365
	} list;			       /**< Which list we're on */
L
Linus Torvalds 已提交
366

D
Dave Airlie 已提交
367 368
	int dev_priv_size;		 /**< Size of buffer private storage */
	void *dev_private;		 /**< Per-buffer private storage */
D
Dave Airlie 已提交
369
};
L
Linus Torvalds 已提交
370 371

/** bufs is one longer than it has to be */
372
struct drm_waitlist {
D
Dave Airlie 已提交
373
	int count;			/**< Number of possible buffers */
D
Dave Airlie 已提交
374 375 376 377
	struct drm_buf **bufs;		/**< List of pointers to buffers */
	struct drm_buf **rp;			/**< Read pointer */
	struct drm_buf **wp;			/**< Write pointer */
	struct drm_buf **end;		/**< End pointer */
D
Dave Airlie 已提交
378 379
	spinlock_t read_lock;
	spinlock_t write_lock;
380
};
L
Linus Torvalds 已提交
381

382
struct drm_freelist {
D
Dave Airlie 已提交
383 384
	int initialized;	       /**< Freelist in use */
	atomic_t count;		       /**< Number of free buffers */
D
Dave Airlie 已提交
385
	struct drm_buf *next;	       /**< End pointer */
L
Linus Torvalds 已提交
386 387

	wait_queue_head_t waiting;     /**< Processes waiting on free bufs */
D
Dave Airlie 已提交
388 389 390 391
	int low_mark;		       /**< Low water mark */
	int high_mark;		       /**< High water mark */
	atomic_t wfh;		       /**< If waiting for high mark */
	spinlock_t lock;
392
};
L
Linus Torvalds 已提交
393

D
Dave Airlie 已提交
394 395 396 397 398 399
typedef struct drm_dma_handle {
	dma_addr_t busaddr;
	void *vaddr;
	size_t size;
} drm_dma_handle_t;

L
Linus Torvalds 已提交
400 401 402
/**
 * Buffer entry.  There is one of this for each buffer size order.
 */
403
struct drm_buf_entry {
D
Dave Airlie 已提交
404 405
	int buf_size;			/**< size */
	int buf_count;			/**< number of buffers */
D
Dave Airlie 已提交
406
	struct drm_buf *buflist;		/**< buffer list */
D
Dave Airlie 已提交
407 408
	int seg_count;
	int page_order;
409
	struct drm_dma_handle **seglist;
D
Dave Airlie 已提交
410

411 412
	struct drm_freelist freelist;
};
L
Linus Torvalds 已提交
413

414 415 416 417 418
/* Event queued up for userspace to read */
struct drm_pending_event {
	struct drm_event *event;
	struct list_head link;
	struct drm_file *file_priv;
419 420
	pid_t pid; /* pid of requester, no guarantee it's valid by the time
		      we deliver the event, for tracing only */
421 422 423
	void (*destroy)(struct drm_pending_event *event);
};

424 425 426 427 428 429
/* initial implementaton using a linked list - todo hashtab */
struct drm_prime_file_private {
	struct list_head head;
	struct mutex lock;
};

L
Linus Torvalds 已提交
430
/** File private data */
431
struct drm_file {
432 433 434 435 436 437
	unsigned always_authenticated :1;
	unsigned authenticated :1;
	unsigned is_master :1; /* this file private is a master for a minor */
	/* true when the client has asked us to expose stereo 3D mode flags */
	unsigned stereo_allowed :1;

438 439
	struct pid *pid;
	kuid_t uid;
D
Dave Airlie 已提交
440
	drm_magic_t magic;
441
	struct list_head lhead;
442
	struct drm_minor *minor;
D
Dave Airlie 已提交
443
	unsigned long lock_count;
444

445 446 447 448
	/** Mapping of mm object handles to object pointers. */
	struct idr object_idr;
	/** Lock for synchronization of access to object_idr. */
	spinlock_t table_lock;
449

450
	struct file *filp;
451
	void *driver_priv;
452 453 454

	struct drm_master *master; /* master this node is currently associated with
				      N.B. not always minor->master */
455 456 457 458 459 460
	/**
	 * fbs - List of framebuffers associated with this file.
	 *
	 * Protected by fbs_lock. Note that the fbs list holds a reference on
	 * the fb object to prevent it from untimely disappearing.
	 */
D
Dave Airlie 已提交
461
	struct list_head fbs;
462
	struct mutex fbs_lock;
463 464 465 466

	wait_queue_head_t event_wait;
	struct list_head event_list;
	int event_space;
467 468

	struct drm_prime_file_private prime;
469
};
L
Linus Torvalds 已提交
470 471

/** Wait queue */
472
struct drm_queue {
D
Dave Airlie 已提交
473 474 475 476
	atomic_t use_count;		/**< Outstanding uses (+1) */
	atomic_t finalization;		/**< Finalization in progress */
	atomic_t block_count;		/**< Count of processes waiting */
	atomic_t block_read;		/**< Queue blocked for reads */
L
Linus Torvalds 已提交
477
	wait_queue_head_t read_queue;	/**< Processes waiting on block_read */
D
Dave Airlie 已提交
478
	atomic_t block_write;		/**< Queue blocked for writes */
L
Linus Torvalds 已提交
479
	wait_queue_head_t write_queue;	/**< Processes waiting on block_write */
D
Dave Airlie 已提交
480 481 482
	atomic_t total_queued;		/**< Total queued statistic */
	atomic_t total_flushed;		/**< Total flushes statistic */
	atomic_t total_locks;		/**< Total locks statistics */
483
	enum drm_ctx_flags flags;	/**< Context preserving and 2D-only */
484
	struct drm_waitlist waitlist;	/**< Pending buffers */
L
Linus Torvalds 已提交
485
	wait_queue_head_t flush_queue;	/**< Processes waiting until flush */
486
};
L
Linus Torvalds 已提交
487 488 489 490

/**
 * Lock data.
 */
D
Dave Airlie 已提交
491
struct drm_lock_data {
492
	struct drm_hw_lock *hw_lock;	/**< Hardware lock */
493 494
	/** Private of lock holder's file (NULL=kernel) */
	struct drm_file *file_priv;
L
Linus Torvalds 已提交
495
	wait_queue_head_t lock_queue;	/**< Queue of blocked processes */
D
Dave Airlie 已提交
496
	unsigned long lock_time;	/**< Time of last lock in jiffies */
497 498 499 500
	spinlock_t spinlock;
	uint32_t kernel_waiters;
	uint32_t user_waiters;
	int idle_has_lock;
D
Dave Airlie 已提交
501
};
L
Linus Torvalds 已提交
502 503 504 505

/**
 * DMA data.
 */
506
struct drm_device_dma {
L
Linus Torvalds 已提交
507

508
	struct drm_buf_entry bufs[DRM_MAX_ORDER + 1];	/**< buffers, grouped by their size order */
D
Dave Airlie 已提交
509
	int buf_count;			/**< total number of buffers */
D
Dave Airlie 已提交
510
	struct drm_buf **buflist;		/**< Vector of pointers into drm_device_dma::bufs */
D
Dave Airlie 已提交
511 512 513 514
	int seg_count;
	int page_count;			/**< number of pages */
	unsigned long *pagelist;	/**< page list */
	unsigned long byte_count;
L
Linus Torvalds 已提交
515 516
	enum {
		_DRM_DMA_USE_AGP = 0x01,
D
Dave Airlie 已提交
517
		_DRM_DMA_USE_SG = 0x02,
518 519
		_DRM_DMA_USE_FB = 0x04,
		_DRM_DMA_USE_PCI_RO = 0x08
L
Linus Torvalds 已提交
520 521
	} flags;

522
};
L
Linus Torvalds 已提交
523

D
Dave Airlie 已提交
524
/**
L
Linus Torvalds 已提交
525 526
 * AGP memory entry.  Stored as a doubly linked list.
 */
D
Dave Airlie 已提交
527
struct drm_agp_mem {
D
Dave Airlie 已提交
528
	unsigned long handle;		/**< handle */
529
	struct agp_memory *memory;
D
Dave Airlie 已提交
530 531
	unsigned long bound;		/**< address */
	int pages;
532
	struct list_head head;
D
Dave Airlie 已提交
533
};
L
Linus Torvalds 已提交
534 535 536 537 538 539

/**
 * AGP data.
 *
 * \sa drm_agp_init() and drm_device::agp.
 */
D
Dave Airlie 已提交
540
struct drm_agp_head {
541
	struct agp_kern_info agp_info;		/**< AGP device information */
542
	struct list_head memory;
D
Dave Airlie 已提交
543 544 545 546 547 548 549 550
	unsigned long mode;		/**< AGP mode */
	struct agp_bridge_data *bridge;
	int enabled;			/**< whether the AGP bus as been enabled */
	int acquired;			/**< whether the AGP device has been acquired */
	unsigned long base;
	int agp_mtrr;
	int cant_use_aperture;
	unsigned long page_mask;
D
Dave Airlie 已提交
551
};
L
Linus Torvalds 已提交
552 553 554 555

/**
 * Scatter-gather memory.
 */
D
Dave Airlie 已提交
556
struct drm_sg_mem {
D
Dave Airlie 已提交
557 558 559 560 561
	unsigned long handle;
	void *virtual;
	int pages;
	struct page **pagelist;
	dma_addr_t *busaddr;
D
Dave Airlie 已提交
562
};
L
Linus Torvalds 已提交
563

D
Dave Airlie 已提交
564
struct drm_sigdata {
D
Dave Airlie 已提交
565
	int context;
566
	struct drm_hw_lock *lock;
D
Dave Airlie 已提交
567
};
L
Linus Torvalds 已提交
568

569

570 571 572 573
/**
 * Kernel side of a mapping
 */
struct drm_local_map {
574
	resource_size_t offset;	 /**< Requested physical address (0 for SAREA)*/
575 576 577 578 579 580 581 582 583 584
	unsigned long size;	 /**< Requested physical size (bytes) */
	enum drm_map_type type;	 /**< Type of memory to map */
	enum drm_map_flags flags;	 /**< Flags */
	void *handle;		 /**< User-space: "Handle" to pass to mmap() */
				 /**< Kernel-space: kernel-virtual address */
	int mtrr;		 /**< MTRR slot used */
};

typedef struct drm_local_map drm_local_map_t;

L
Linus Torvalds 已提交
585 586 587
/**
 * Mappings list
 */
D
Dave Airlie 已提交
588
struct drm_map_list {
D
Dave Airlie 已提交
589
	struct list_head head;		/**< list head */
590
	struct drm_hash_item hash;
591
	struct drm_local_map *map;	/**< mapping */
592
	uint64_t user_token;
593
	struct drm_master *master;
D
Dave Airlie 已提交
594
};
L
Linus Torvalds 已提交
595 596 597 598

/**
 * Context handle list
 */
D
Dave Airlie 已提交
599
struct drm_ctx_list {
D
Dave Airlie 已提交
600 601
	struct list_head head;		/**< list head */
	drm_context_t handle;		/**< context handle */
602
	struct drm_file *tag;		/**< associated fd private data */
D
Dave Airlie 已提交
603
};
L
Linus Torvalds 已提交
604

605 606 607 608
/* location of GART table */
#define DRM_ATI_GART_MAIN 1
#define DRM_ATI_GART_FB   2

609 610 611 612
#define DRM_ATI_GART_PCI 1
#define DRM_ATI_GART_PCIE 2
#define DRM_ATI_GART_IGP 3

D
Dave Airlie 已提交
613
struct drm_ati_pcigart_info {
614
	int gart_table_location;
615
	int gart_reg_if;
616
	void *addr;
617
	dma_addr_t bus_addr;
618 619
	dma_addr_t table_mask;
	struct drm_dma_handle *table_handle;
620
	struct drm_local_map mapping;
621
	int table_size;
D
Dave Airlie 已提交
622
};
623

624 625 626 627 628 629 630 631
/**
 * This structure defines the drm_mm memory object, which will be used by the
 * DRM for its buffer objects.
 */
struct drm_gem_object {
	/** Reference count of this object */
	struct kref refcount;

632 633 634 635 636 637 638 639 640 641
	/**
	 * handle_count - gem file_priv handle count of this object
	 *
	 * Each handle also holds a reference. Note that when the handle_count
	 * drops to 0 any global names (e.g. the id in the flink namespace) will
	 * be cleared.
	 *
	 * Protected by dev->object_name_lock.
	 * */
	unsigned handle_count;
642 643 644 645 646 647 648

	/** Related drm device */
	struct drm_device *dev;

	/** File representing the shmem storage */
	struct file *filp;

J
Jesse Barnes 已提交
649
	/* Mapping info for this object */
650
	struct drm_vma_offset_node vma_node;
J
Jesse Barnes 已提交
651

652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681
	/**
	 * Size of the object, in bytes.  Immutable over the object's
	 * lifetime.
	 */
	size_t size;

	/**
	 * Global name for this object, starts at 1. 0 means unnamed.
	 * Access is covered by the object_name_lock in the related drm_device
	 */
	int name;

	/**
	 * Memory domains. These monitor which caches contain read/write data
	 * related to the object. When transitioning from one set of domains
	 * to another, the driver is called to ensure that caches are suitably
	 * flushed and invalidated
	 */
	uint32_t read_domains;
	uint32_t write_domain;

	/**
	 * While validating an exec operation, the
	 * new read/write domain values are computed here.
	 * They will be transferred to the above values
	 * at the point that any cache flushing occurs
	 */
	uint32_t pending_read_domains;
	uint32_t pending_write_domain;

682 683 684 685 686 687 688 689 690 691
	/**
	 * dma_buf - dma buf associated with this GEM object
	 *
	 * Pointer to the dma-buf associated with this gem object (either
	 * through importing or exporting). We break the resulting reference
	 * loop when the last gem handle for this object is released.
	 *
	 * Protected by obj->object_name_lock
	 */
	struct dma_buf *dma_buf;
692

693 694 695 696 697 698 699 700 701
	/**
	 * import_attach - dma buf attachment backing this object
	 *
	 * Any foreign dma_buf imported as a gem object has this set to the
	 * attachment point for the device. This is invariant over the lifetime
	 * of a gem object.
	 *
	 * The driver's ->gem_free_object callback is responsible for cleaning
	 * up the dma_buf attachment and references acquired at import time.
702 703 704 705 706
	 *
	 * Note that the drm gem/prime core does not depend upon drivers setting
	 * this field any more. So for drivers where this doesn't make sense
	 * (e.g. virtual devices or a displaylink behind an usb bus) they can
	 * simply leave it as NULL.
707
	 */
708
	struct dma_buf_attachment *import_attach;
709 710
};

711
#include <drm/drm_crtc.h>
D
Dave Airlie 已提交
712

713 714 715 716 717 718 719 720 721 722
/* per-master structure */
struct drm_master {

	struct kref refcount; /* refcount for this master */

	struct list_head head; /**< each minor contains a list of masters */
	struct drm_minor *minor; /**< link back to minor we are a master for */

	char *unique;			/**< Unique identifier: e.g., busid */
	int unique_len;			/**< Length of unique field */
723
	int unique_size;		/**< amount allocated */
724 725 726 727 728 729 730 731 732 733 734 735 736 737

	int blocked;			/**< Blocked due to VC switch? */

	/** \name Authentication */
	/*@{ */
	struct drm_open_hash magiclist;
	struct list_head magicfree;
	/*@} */

	struct drm_lock_data lock;	/**< Information on hardware lock */

	void *driver_priv; /**< Private structure for driver to use */
};

738 739 740 741 742 743 744 745 746 747 748 749 750 751 752
/* Size of ringbuffer for vblank timestamps. Just double-buffer
 * in initial implementation.
 */
#define DRM_VBLANKTIME_RBSIZE 2

/* Flags and return codes for get_vblank_timestamp() driver function. */
#define DRM_CALLED_FROM_VBLIRQ 1
#define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0)
#define DRM_VBLANKTIME_INVBL             (1 << 1)

/* get_scanout_position() return flags */
#define DRM_SCANOUTPOS_VALID        (1 << 0)
#define DRM_SCANOUTPOS_INVBL        (1 << 1)
#define DRM_SCANOUTPOS_ACCURATE     (1 << 2)

753 754 755 756 757 758 759 760 761 762
struct drm_bus {
	int bus_type;
	int (*get_irq)(struct drm_device *dev);
	const char *(*get_name)(struct drm_device *dev);
	int (*set_busid)(struct drm_device *dev, struct drm_master *master);
	int (*set_unique)(struct drm_device *dev, struct drm_master *master,
			  struct drm_unique *unique);
	int (*irq_by_busid)(struct drm_device *dev, struct drm_irq_busid *p);
};

L
Linus Torvalds 已提交
763 764 765 766 767 768
/**
 * DRM driver structure. This structure represent the common code for
 * a family of cards. There will one drm_device for each card present
 * in this family
 */
struct drm_driver {
769 770
	int (*load) (struct drm_device *, unsigned long flags);
	int (*firstopen) (struct drm_device *);
771
	int (*open) (struct drm_device *, struct drm_file *);
772
	void (*preclose) (struct drm_device *, struct drm_file *file_priv);
773
	void (*postclose) (struct drm_device *, struct drm_file *);
774 775
	void (*lastclose) (struct drm_device *);
	int (*unload) (struct drm_device *);
776
	int (*suspend) (struct drm_device *, pm_message_t state);
J
Jesse Barnes 已提交
777
	int (*resume) (struct drm_device *);
778
	int (*dma_ioctl) (struct drm_device *dev, void *data, struct drm_file *file_priv);
D
Dave Airlie 已提交
779
	int (*dma_quiescent) (struct drm_device *);
780
	int (*context_dtor) (struct drm_device *dev, int context);
D
Dave Airlie 已提交
781

782 783 784 785 786
	/**
	 * get_vblank_counter - get raw hardware vblank counter
	 * @dev: DRM device
	 * @crtc: counter to fetch
	 *
787 788 789 790 791
	 * Driver callback for fetching a raw hardware vblank counter for @crtc.
	 * If a device doesn't have a hardware counter, the driver can simply
	 * return the value of drm_vblank_count. The DRM core will account for
	 * missed vblank events while interrupts where disabled based on system
	 * timestamps.
792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826
	 *
	 * Wraparound handling and loss of events due to modesetting is dealt
	 * with in the DRM core code.
	 *
	 * RETURNS
	 * Raw vblank counter value.
	 */
	u32 (*get_vblank_counter) (struct drm_device *dev, int crtc);

	/**
	 * enable_vblank - enable vblank interrupt events
	 * @dev: DRM device
	 * @crtc: which irq to enable
	 *
	 * Enable vblank interrupts for @crtc.  If the device doesn't have
	 * a hardware vblank counter, this routine should be a no-op, since
	 * interrupts will have to stay on to keep the count accurate.
	 *
	 * RETURNS
	 * Zero on success, appropriate errno if the given @crtc's vblank
	 * interrupt cannot be enabled.
	 */
	int (*enable_vblank) (struct drm_device *dev, int crtc);

	/**
	 * disable_vblank - disable vblank interrupt events
	 * @dev: DRM device
	 * @crtc: which irq to enable
	 *
	 * Disable vblank interrupts for @crtc.  If the device doesn't have
	 * a hardware vblank counter, this routine should be a no-op, since
	 * interrupts will have to stay on to keep the count accurate.
	 */
	void (*disable_vblank) (struct drm_device *dev, int crtc);

827 828 829 830 831 832 833 834 835 836 837
	/**
	 * Called by \c drm_device_is_agp.  Typically used to determine if a
	 * card is really attached to AGP or not.
	 *
	 * \param dev  DRM device handle
	 *
	 * \returns
	 * One of three values is returned depending on whether or not the
	 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
	 * (return of 1), or may or may not be AGP (return of 2).
	 */
838
	int (*device_is_agp) (struct drm_device *dev);
839

840 841 842
	/**
	 * Called by vblank timestamping code.
	 *
843 844
	 * Return the current display scanout position from a crtc, and an
	 * optional accurate ktime_get timestamp of when position was measured.
845 846 847 848 849
	 *
	 * \param dev  DRM device.
	 * \param crtc Id of the crtc to query.
	 * \param *vpos Target location for current vertical scanout position.
	 * \param *hpos Target location for current horizontal scanout position.
850 851 852 853
	 * \param *stime Target location for timestamp taken immediately before
	 *               scanout position query. Can be NULL to skip timestamp.
	 * \param *etime Target location for timestamp taken immediately after
	 *               scanout position query. Can be NULL to skip timestamp.
854 855 856 857 858 859 860 861
	 *
	 * Returns vpos as a positive number while in active scanout area.
	 * Returns vpos as a negative number inside vblank, counting the number
	 * of scanlines to go until end of vblank, e.g., -1 means "one scanline
	 * until start of active scanout / end of vblank."
	 *
	 * \return Flags, or'ed together as follows:
	 *
L
Lucas De Marchi 已提交
862
	 * DRM_SCANOUTPOS_VALID = Query successful.
863 864 865 866 867 868 869
	 * DRM_SCANOUTPOS_INVBL = Inside vblank.
	 * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of
	 * this flag means that returned position may be offset by a constant
	 * but unknown small number of scanlines wrt. real scanout position.
	 *
	 */
	int (*get_scanout_position) (struct drm_device *dev, int crtc,
870 871
				     int *vpos, int *hpos, ktime_t *stime,
				     ktime_t *etime);
872 873 874 875 876 877 878 879

	/**
	 * Called by \c drm_get_last_vbltimestamp. Should return a precise
	 * timestamp when the most recent VBLANK interval ended or will end.
	 *
	 * Specifically, the timestamp in @vblank_time should correspond as
	 * closely as possible to the time when the first video scanline of
	 * the video frame after the end of VBLANK will start scanning out,
880
	 * the time immediately after end of the VBLANK interval. If the
881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907
	 * @crtc is currently inside VBLANK, this will be a time in the future.
	 * If the @crtc is currently scanning out a frame, this will be the
	 * past start time of the current scanout. This is meant to adhere
	 * to the OpenML OML_sync_control extension specification.
	 *
	 * \param dev dev DRM device handle.
	 * \param crtc crtc for which timestamp should be returned.
	 * \param *max_error Maximum allowable timestamp error in nanoseconds.
	 *                   Implementation should strive to provide timestamp
	 *                   with an error of at most *max_error nanoseconds.
	 *                   Returns true upper bound on error for timestamp.
	 * \param *vblank_time Target location for returned vblank timestamp.
	 * \param flags 0 = Defaults, no special treatment needed.
	 * \param       DRM_CALLED_FROM_VBLIRQ = Function is called from vblank
	 *	        irq handler. Some drivers need to apply some workarounds
	 *              for gpu-specific vblank irq quirks if flag is set.
	 *
	 * \returns
	 * Zero if timestamping isn't supported in current display mode or a
	 * negative number on failure. A positive status code on success,
	 * which describes how the vblank_time timestamp was computed.
	 */
	int (*get_vblank_timestamp) (struct drm_device *dev, int crtc,
				     int *max_error,
				     struct timeval *vblank_time,
				     unsigned flags);

L
Linus Torvalds 已提交
908
	/* these have to be filled in */
D
Dave Airlie 已提交
909

D
Daniel Vetter 已提交
910
	irqreturn_t(*irq_handler) (int irq, void *arg);
911
	void (*irq_preinstall) (struct drm_device *dev);
912
	int (*irq_postinstall) (struct drm_device *dev);
913
	void (*irq_uninstall) (struct drm_device *dev);
914

915 916 917
	/* Master routines */
	int (*master_create)(struct drm_device *dev, struct drm_master *master);
	void (*master_destroy)(struct drm_device *dev, struct drm_master *master);
918 919 920 921 922 923 924 925 926
	/**
	 * master_set is called whenever the minor master is set.
	 * master_drop is called whenever the minor master is dropped.
	 */

	int (*master_set)(struct drm_device *dev, struct drm_file *file_priv,
			  bool from_open);
	void (*master_drop)(struct drm_device *dev, struct drm_file *file_priv,
			    bool from_release);
927

928 929
	int (*debugfs_init)(struct drm_minor *minor);
	void (*debugfs_cleanup)(struct drm_minor *minor);
930 931 932 933 934 935 936 937

	/**
	 * Driver-specific constructor for drm_gem_objects, to set up
	 * obj->driver_private.
	 *
	 * Returns 0 on success.
	 */
	void (*gem_free_object) (struct drm_gem_object *obj);
938 939
	int (*gem_open_object) (struct drm_gem_object *, struct drm_file *);
	void (*gem_close_object) (struct drm_gem_object *, struct drm_file *);
940

941 942 943 944 945 946 947 948 949 950 951 952 953
	/* prime: */
	/* export handle -> fd (see drm_gem_prime_handle_to_fd() helper) */
	int (*prime_handle_to_fd)(struct drm_device *dev, struct drm_file *file_priv,
				uint32_t handle, uint32_t flags, int *prime_fd);
	/* import fd -> handle (see drm_gem_prime_fd_to_handle() helper) */
	int (*prime_fd_to_handle)(struct drm_device *dev, struct drm_file *file_priv,
				int prime_fd, uint32_t *handle);
	/* export GEM -> dmabuf */
	struct dma_buf * (*gem_prime_export)(struct drm_device *dev,
				struct drm_gem_object *obj, int flags);
	/* import dmabuf -> GEM */
	struct drm_gem_object * (*gem_prime_import)(struct drm_device *dev,
				struct dma_buf *dma_buf);
A
Aaron Plattner 已提交
954 955
	/* low-level interface used by drm_gem_prime_{import,export} */
	int (*gem_prime_pin)(struct drm_gem_object *obj);
956
	void (*gem_prime_unpin)(struct drm_gem_object *obj);
A
Aaron Plattner 已提交
957 958 959 960 961 962
	struct sg_table *(*gem_prime_get_sg_table)(struct drm_gem_object *obj);
	struct drm_gem_object *(*gem_prime_import_sg_table)(
				struct drm_device *dev, size_t size,
				struct sg_table *sgt);
	void *(*gem_prime_vmap)(struct drm_gem_object *obj);
	void (*gem_prime_vunmap)(struct drm_gem_object *obj, void *vaddr);
963 964
	int (*gem_prime_mmap)(struct drm_gem_object *obj,
				struct vm_area_struct *vma);
965

966 967 968
	/* vga arb irq handler */
	void (*vgaarb_irq)(struct drm_device *dev, bool state);

969 970 971 972 973 974 975 976 977 978 979
	/* dumb alloc support */
	int (*dumb_create)(struct drm_file *file_priv,
			   struct drm_device *dev,
			   struct drm_mode_create_dumb *args);
	int (*dumb_map_offset)(struct drm_file *file_priv,
			       struct drm_device *dev, uint32_t handle,
			       uint64_t *offset);
	int (*dumb_destroy)(struct drm_file *file_priv,
			    struct drm_device *dev,
			    uint32_t handle);

J
Jesse Barnes 已提交
980
	/* Driver private ops for this object */
981
	const struct vm_operations_struct *gem_vm_ops;
J
Jesse Barnes 已提交
982

983 984 985 986 987 988 989
	int major;
	int minor;
	int patchlevel;
	char *name;
	char *desc;
	char *date;

L
Linus Torvalds 已提交
990 991
	u32 driver_features;
	int dev_priv_size;
R
Rob Clark 已提交
992
	const struct drm_ioctl_desc *ioctls;
L
Linus Torvalds 已提交
993
	int num_ioctls;
994
	const struct file_operations *fops;
995 996 997
	union {
		struct pci_driver *pci;
		struct platform_device *platform_device;
D
Dave Airlie 已提交
998
		struct usb_driver *usb;
999 1000 1001
	} kdriver;
	struct drm_bus *bus;

1002 1003
	/* List of devices hanging off this driver with stealth attach. */
	struct list_head legacy_dev_list;
L
Linus Torvalds 已提交
1004 1005
};

1006 1007
#define DRM_MINOR_UNASSIGNED 0
#define DRM_MINOR_LEGACY 1
D
Dave Airlie 已提交
1008 1009
#define DRM_MINOR_CONTROL 2
#define DRM_MINOR_RENDER 3
1010

1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027
/**
 * Info file list entry. This structure represents a debugfs or proc file to
 * be created by the drm core
 */
struct drm_info_list {
	const char *name; /** file name */
	int (*show)(struct seq_file*, void*); /** show callback */
	u32 driver_features; /**< Required driver features for this entry */
	void *data;
};

/**
 * debugfs node structure. This structure represents a debugfs file.
 */
struct drm_info_node {
	struct list_head list;
	struct drm_minor *minor;
D
David Howells 已提交
1028
	const struct drm_info_list *info_ent;
1029 1030 1031
	struct dentry *dent;
};

L
Linus Torvalds 已提交
1032
/**
1033
 * DRM minor structure. This structure represents a drm minor number.
L
Linus Torvalds 已提交
1034
 */
1035 1036 1037 1038
struct drm_minor {
	int index;			/**< Minor device number */
	int type;                       /**< Control or render */
	dev_t device;			/**< Device number for mknod */
1039
	struct device *kdev;		/**< Linux device */
L
Linus Torvalds 已提交
1040
	struct drm_device *dev;
1041 1042

	struct dentry *debugfs_root;
1043 1044 1045

	struct list_head debugfs_list;
	struct mutex debugfs_lock; /* Protects debugfs_list. */
1046

1047 1048
	struct drm_master *master; /* currently active master for this node */
	struct list_head master_list;
D
Dave Airlie 已提交
1049
	struct drm_mode_group mode_group;
1050
};
L
Linus Torvalds 已提交
1051

1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067
/* mode specified on the command line */
struct drm_cmdline_mode {
	bool specified;
	bool refresh_specified;
	bool bpp_specified;
	int xres, yres;
	int bpp;
	int refresh;
	bool rb;
	bool interlace;
	bool cvt;
	bool margins;
	enum drm_connector_force force;
};


1068 1069 1070 1071 1072 1073
struct drm_pending_vblank_event {
	struct drm_pending_event base;
	int pipe;
	struct drm_event_vblank event;
};

1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086
struct drm_vblank_crtc {
	wait_queue_head_t queue;	/**< VBLANK wait queue */
	struct timeval time[DRM_VBLANKTIME_RBSIZE];	/**< timestamp of current count */
	atomic_t count;			/**< number of VBLANK interrupts */
	atomic_t refcount;		/* number of users of vblank interruptsper crtc */
	u32 last;			/* protected by dev->vbl_lock, used */
					/* for wraparound handling */
	u32 last_wait;			/* Last vblank seqno waited per CRTC */
	unsigned int inmodeset;		/* Display driver is setting mode */
	bool enabled;			/* so we don't call enable more than
					   once per disable */
};

L
Linus Torvalds 已提交
1087 1088 1089 1090
/**
 * DRM device structure. This structure represent a complete card that
 * may contain multiple heads.
 */
1091
struct drm_device {
1092
	struct list_head legacy_dev_list;/**< list of devices per driver for stealth attach cleanup */
D
Dave Airlie 已提交
1093 1094
	char *devname;			/**< For /proc/interrupts */
	int if_version;			/**< Highest interface version set */
L
Linus Torvalds 已提交
1095 1096

	/** \name Locks */
D
Dave Airlie 已提交
1097 1098
	/*@{ */
	spinlock_t count_lock;		/**< For inuse, drm_device::open_count, drm_device::buf_use */
D
Dave Airlie 已提交
1099
	struct mutex struct_mutex;	/**< For others */
D
Dave Airlie 已提交
1100
	/*@} */
L
Linus Torvalds 已提交
1101 1102

	/** \name Usage Counters */
D
Dave Airlie 已提交
1103 1104 1105 1106 1107
	/*@{ */
	int open_count;			/**< Outstanding files open */
	int buf_use;			/**< Buffers in use -- cannot alloc */
	atomic_t buf_alloc;		/**< Buffer allocation in progress */
	/*@} */
L
Linus Torvalds 已提交
1108

1109
	struct list_head filelist;
L
Linus Torvalds 已提交
1110 1111

	/** \name Memory management */
D
Dave Airlie 已提交
1112
	/*@{ */
1113
	struct list_head maplist;	/**< Linked list of regions */
1114
	struct drm_open_hash map_hash;	/**< User token hash table for maps */
L
Linus Torvalds 已提交
1115 1116

	/** \name Context handle management */
D
Dave Airlie 已提交
1117
	/*@{ */
1118
	struct list_head ctxlist;	/**< Linked list of context handles */
D
Dave Airlie 已提交
1119
	struct mutex ctxlist_mutex;	/**< For ctxlist */
L
Linus Torvalds 已提交
1120

1121
	struct idr ctx_idr;
L
Linus Torvalds 已提交
1122

1123
	struct list_head vmalist;	/**< List of vmas (for debugging) */
D
Dave Airlie 已提交
1124

D
Dave Airlie 已提交
1125
	/*@} */
L
Linus Torvalds 已提交
1126

D
Daniel Vetter 已提交
1127
	/** \name DMA support */
D
Dave Airlie 已提交
1128
	/*@{ */
1129
	struct drm_device_dma *dma;		/**< Optional pointer for DMA support */
D
Dave Airlie 已提交
1130
	/*@} */
L
Linus Torvalds 已提交
1131 1132

	/** \name Context support */
D
Dave Airlie 已提交
1133
	/*@{ */
V
Ville Syrjälä 已提交
1134
	bool irq_enabled;		/**< True if irq handler is enabled */
L
Linus Torvalds 已提交
1135
	__volatile__ long context_flag;	/**< Context swapping flag */
D
Dave Airlie 已提交
1136 1137 1138
	int last_context;		/**< Last current context */
	/*@} */

L
Linus Torvalds 已提交
1139
	/** \name VBLANK IRQ support */
D
Dave Airlie 已提交
1140 1141
	/*@{ */

1142 1143 1144 1145 1146 1147
	/*
	 * At load time, disabling the vblank interrupt won't be allowed since
	 * old clients may not call the modeset ioctl and therefore misbehave.
	 * Once the modeset ioctl *has* been called though, we can safely
	 * disable them when unused.
	 */
1148
	bool vblank_disable_allowed;
1149

1150 1151
	/* array of size num_crtcs */
	struct drm_vblank_crtc *vblank;
1152

1153
	spinlock_t vblank_time_lock;    /**< Protects vblank count and time updates during vblank enable/disable */
D
Dave Airlie 已提交
1154
	spinlock_t vbl_lock;
1155 1156 1157
	struct timer_list vblank_disable_timer;

	u32 max_vblank_count;           /**< size of vblank counter register */
D
Dave Airlie 已提交
1158

1159 1160 1161 1162 1163 1164
	/**
	 * List of events
	 */
	struct list_head vblank_event_list;
	spinlock_t event_lock;

D
Dave Airlie 已提交
1165 1166
	/*@} */

D
Dave Airlie 已提交
1167
	struct drm_agp_head *agp;	/**< AGP data */
L
Linus Torvalds 已提交
1168

1169
	struct device *dev;             /**< Device structure */
D
Dave Airlie 已提交
1170
	struct pci_dev *pdev;		/**< PCI device structure */
L
Linus Torvalds 已提交
1171 1172 1173
#ifdef __alpha__
	struct pci_controller *hose;
#endif
1174 1175

	struct platform_device *platformdev; /**< Platform device struture */
D
Dave Airlie 已提交
1176
	struct usb_device *usbdev;
1177

D
Dave Airlie 已提交
1178
	struct drm_sg_mem *sg;	/**< Scatter gather memory */
1179
	unsigned int num_crtcs;                  /**< Number of CRTCs on this device */
D
Dave Airlie 已提交
1180
	void *dev_private;		/**< device private data */
J
Jesse Barnes 已提交
1181
	struct address_space *dev_mapping;
D
Dave Airlie 已提交
1182
	struct drm_sigdata sigdata;	   /**< For block_all_signals */
D
Dave Airlie 已提交
1183 1184 1185
	sigset_t sigmask;

	struct drm_driver *driver;
1186
	struct drm_local_map *agp_buffer_map;
1187
	unsigned int agp_buffer_token;
D
Dave Airlie 已提交
1188
	struct drm_minor *control;		/**< Control node for card */
1189
	struct drm_minor *primary;		/**< render type primary screen head */
1190
	struct drm_minor *render;		/**< render node for card */
1191

D
Dave Airlie 已提交
1192 1193
        struct drm_mode_config mode_config;	/**< Current mode config */

1194 1195
	/** \name GEM information */
	/*@{ */
1196
	struct mutex object_name_lock;
1197
	struct idr object_name_idr;
1198
	struct drm_vma_offset_manager *vma_offset_manager;
1199
	/*@} */
1200
	int switch_power_state;
1201 1202

	atomic_t unplugged; /* device has been unplugged or gone away */
1203
};
L
Linus Torvalds 已提交
1204

1205 1206 1207
#define DRM_SWITCH_POWER_ON 0
#define DRM_SWITCH_POWER_OFF 1
#define DRM_SWITCH_POWER_CHANGING 2
1208
#define DRM_SWITCH_POWER_DYNAMIC_OFF 3
1209

D
Dave Airlie 已提交
1210 1211
static __inline__ int drm_core_check_feature(struct drm_device *dev,
					     int feature)
L
Linus Torvalds 已提交
1212 1213 1214 1215
{
	return ((dev->driver->driver_features & feature) ? 1 : 0);
}

1216 1217
static inline int drm_dev_to_irq(struct drm_device *dev)
{
1218
	return dev->driver->bus->get_irq(dev);
1219 1220
}

1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233
static inline void drm_device_set_unplugged(struct drm_device *dev)
{
	smp_wmb();
	atomic_set(&dev->unplugged, 1);
}

static inline int drm_device_is_unplugged(struct drm_device *dev)
{
	int ret = atomic_read(&dev->unplugged);
	smp_rmb();
	return ret;
}

1234 1235 1236 1237 1238
static inline bool drm_modeset_is_locked(struct drm_device *dev)
{
	return mutex_is_locked(&dev->mode_config.mutex);
}

1239 1240 1241 1242 1243
static inline bool drm_is_render_client(struct drm_file *file_priv)
{
	return file_priv->minor->type == DRM_MINOR_RENDER;
}

L
Linus Torvalds 已提交
1244 1245 1246 1247 1248
/******************************************************************/
/** \name Internal function definitions */
/*@{*/

				/* Driver support (drm_drv.h) */
1249 1250
extern long drm_ioctl(struct file *filp,
		      unsigned int cmd, unsigned long arg);
D
Dave Airlie 已提交
1251 1252
extern long drm_compat_ioctl(struct file *filp,
			     unsigned int cmd, unsigned long arg);
1253
extern int drm_lastclose(struct drm_device *dev);
L
Linus Torvalds 已提交
1254 1255

				/* Device support (drm_fops.h) */
A
Arnd Bergmann 已提交
1256
extern struct mutex drm_global_mutex;
D
Dave Airlie 已提交
1257 1258
extern int drm_open(struct inode *inode, struct file *filp);
extern int drm_stub_open(struct inode *inode, struct file *filp);
1259 1260
extern ssize_t drm_read(struct file *filp, char __user *buffer,
			size_t count, loff_t *offset);
D
Dave Airlie 已提交
1261
extern int drm_release(struct inode *inode, struct file *filp);
L
Linus Torvalds 已提交
1262 1263

				/* Mapping support (drm_vm.h) */
D
Dave Airlie 已提交
1264
extern int drm_mmap(struct file *filp, struct vm_area_struct *vma);
J
Jesse Barnes 已提交
1265
extern int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma);
1266 1267
extern void drm_vm_open_locked(struct drm_device *dev, struct vm_area_struct *vma);
extern void drm_vm_close_locked(struct drm_device *dev, struct vm_area_struct *vma);
D
Dave Airlie 已提交
1268
extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait);
L
Linus Torvalds 已提交
1269 1270

				/* Memory management support (drm_memory.h) */
1271
#include <drm/drm_memory.h>
L
Linus Torvalds 已提交
1272

1273

L
Linus Torvalds 已提交
1274
				/* Misc. IOCTL support (drm_ioctl.h) */
1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286
extern int drm_irq_by_busid(struct drm_device *dev, void *data,
			    struct drm_file *file_priv);
extern int drm_getunique(struct drm_device *dev, void *data,
			 struct drm_file *file_priv);
extern int drm_setunique(struct drm_device *dev, void *data,
			 struct drm_file *file_priv);
extern int drm_getmap(struct drm_device *dev, void *data,
		      struct drm_file *file_priv);
extern int drm_getclient(struct drm_device *dev, void *data,
			 struct drm_file *file_priv);
extern int drm_getstats(struct drm_device *dev, void *data,
			struct drm_file *file_priv);
1287 1288
extern int drm_getcap(struct drm_device *dev, void *data,
		      struct drm_file *file_priv);
D
Damien Lespiau 已提交
1289 1290
extern int drm_setclientcap(struct drm_device *dev, void *data,
			    struct drm_file *file_priv);
1291 1292 1293 1294
extern int drm_setversion(struct drm_device *dev, void *data,
			  struct drm_file *file_priv);
extern int drm_noop(struct drm_device *dev, void *data,
		    struct drm_file *file_priv);
L
Linus Torvalds 已提交
1295 1296

				/* Context IOCTL support (drm_context.h) */
1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308
extern int drm_resctx(struct drm_device *dev, void *data,
		      struct drm_file *file_priv);
extern int drm_addctx(struct drm_device *dev, void *data,
		      struct drm_file *file_priv);
extern int drm_getctx(struct drm_device *dev, void *data,
		      struct drm_file *file_priv);
extern int drm_switchctx(struct drm_device *dev, void *data,
			 struct drm_file *file_priv);
extern int drm_newctx(struct drm_device *dev, void *data,
		      struct drm_file *file_priv);
extern int drm_rmctx(struct drm_device *dev, void *data,
		     struct drm_file *file_priv);
D
Dave Airlie 已提交
1309

1310 1311 1312
extern int drm_ctxbitmap_init(struct drm_device *dev);
extern void drm_ctxbitmap_cleanup(struct drm_device *dev);
extern void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
D
Dave Airlie 已提交
1313

1314 1315 1316 1317
extern int drm_setsareactx(struct drm_device *dev, void *data,
			   struct drm_file *file_priv);
extern int drm_getsareactx(struct drm_device *dev, void *data,
			   struct drm_file *file_priv);
L
Linus Torvalds 已提交
1318 1319

				/* Authentication IOCTL support (drm_auth.h) */
1320 1321 1322 1323
extern int drm_getmagic(struct drm_device *dev, void *data,
			struct drm_file *file_priv);
extern int drm_authmagic(struct drm_device *dev, void *data,
			 struct drm_file *file_priv);
1324
extern int drm_remove_magic(struct drm_master *master, drm_magic_t magic);
L
Linus Torvalds 已提交
1325

1326 1327
/* Cache management (drm_cache.c) */
void drm_clflush_pages(struct page *pages[], unsigned long num_pages);
1328
void drm_clflush_sg(struct sg_table *st);
1329
void drm_clflush_virt_range(char *addr, unsigned long length);
1330

L
Linus Torvalds 已提交
1331
				/* Locking IOCTL support (drm_lock.h) */
1332 1333 1334 1335
extern int drm_lock(struct drm_device *dev, void *data,
		    struct drm_file *file_priv);
extern int drm_unlock(struct drm_device *dev, void *data,
		      struct drm_file *file_priv);
D
Dave Airlie 已提交
1336 1337 1338
extern int drm_lock_free(struct drm_lock_data *lock_data, unsigned int context);
extern void drm_idlelock_take(struct drm_lock_data *lock_data);
extern void drm_idlelock_release(struct drm_lock_data *lock_data);
1339 1340 1341 1342 1343 1344

/*
 * These are exported to drivers so that they can implement fencing using
 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
 */

1345
extern int drm_i_have_hw_lock(struct drm_device *dev, struct drm_file *file_priv);
L
Linus Torvalds 已提交
1346 1347

				/* Buffer management support (drm_bufs.h) */
1348 1349
extern int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc * request);
extern int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc * request);
1350
extern int drm_addmap(struct drm_device *dev, resource_size_t offset,
1351
		      unsigned int size, enum drm_map_type type,
1352
		      enum drm_map_flags flags, struct drm_local_map **map_ptr);
1353 1354
extern int drm_addmap_ioctl(struct drm_device *dev, void *data,
			    struct drm_file *file_priv);
1355 1356
extern int drm_rmmap(struct drm_device *dev, struct drm_local_map *map);
extern int drm_rmmap_locked(struct drm_device *dev, struct drm_local_map *map);
1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368
extern int drm_rmmap_ioctl(struct drm_device *dev, void *data,
			   struct drm_file *file_priv);
extern int drm_addbufs(struct drm_device *dev, void *data,
		       struct drm_file *file_priv);
extern int drm_infobufs(struct drm_device *dev, void *data,
			struct drm_file *file_priv);
extern int drm_markbufs(struct drm_device *dev, void *data,
			struct drm_file *file_priv);
extern int drm_freebufs(struct drm_device *dev, void *data,
			struct drm_file *file_priv);
extern int drm_mapbufs(struct drm_device *dev, void *data,
		       struct drm_file *file_priv);
1369 1370
extern int drm_dma_ioctl(struct drm_device *dev, void *data,
			 struct drm_file *file_priv);
L
Linus Torvalds 已提交
1371 1372

				/* DMA support (drm_dma.h) */
1373 1374
extern int drm_legacy_dma_setup(struct drm_device *dev);
extern void drm_legacy_dma_takedown(struct drm_device *dev);
D
Dave Airlie 已提交
1375
extern void drm_free_buffer(struct drm_device *dev, struct drm_buf * buf);
1376 1377
extern void drm_core_reclaim_buffers(struct drm_device *dev,
				     struct drm_file *filp);
L
Linus Torvalds 已提交
1378 1379

				/* IRQ support (drm_irq.h) */
1380 1381
extern int drm_control(struct drm_device *dev, void *data,
		       struct drm_file *file_priv);
1382
extern int drm_irq_install(struct drm_device *dev);
1383
extern int drm_irq_uninstall(struct drm_device *dev);
D
Dave Airlie 已提交
1384

1385
extern int drm_vblank_init(struct drm_device *dev, int num_crtcs);
1386
extern int drm_wait_vblank(struct drm_device *dev, void *data,
1387 1388
			   struct drm_file *filp);
extern u32 drm_vblank_count(struct drm_device *dev, int crtc);
1389 1390
extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc,
				     struct timeval *vblanktime);
1391 1392
extern void drm_send_vblank_event(struct drm_device *dev, int crtc,
				     struct drm_pending_vblank_event *e);
1393
extern bool drm_handle_vblank(struct drm_device *dev, int crtc);
1394 1395
extern int drm_vblank_get(struct drm_device *dev, int crtc);
extern void drm_vblank_put(struct drm_device *dev, int crtc);
1396
extern void drm_vblank_off(struct drm_device *dev, int crtc);
1397
extern void drm_vblank_cleanup(struct drm_device *dev);
1398 1399 1400 1401 1402 1403 1404 1405 1406
extern u32 drm_get_last_vbltimestamp(struct drm_device *dev, int crtc,
				     struct timeval *tvblank, unsigned flags);
extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev,
						 int crtc, int *max_error,
						 struct timeval *vblank_time,
						 unsigned flags,
						 struct drm_crtc *refcrtc);
extern void drm_calc_timestamping_constants(struct drm_crtc *crtc);

1407 1408 1409 1410 1411 1412 1413 1414 1415
extern bool
drm_mode_parse_command_line_for_connector(const char *mode_option,
					  struct drm_connector *connector,
					  struct drm_cmdline_mode *mode);

extern struct drm_display_mode *
drm_mode_create_from_cmdline_mode(struct drm_device *dev,
				  struct drm_cmdline_mode *cmd);

1416 1417
extern int drm_display_mode_from_videomode(const struct videomode *vm,
					   struct drm_display_mode *dmode);
1418 1419 1420
extern int of_get_drm_display_mode(struct device_node *np,
				   struct drm_display_mode *dmode,
				   int index);
1421

1422
/* Modesetting support */
D
Dave Airlie 已提交
1423 1424
extern void drm_vblank_pre_modeset(struct drm_device *dev, int crtc);
extern void drm_vblank_post_modeset(struct drm_device *dev, int crtc);
1425 1426
extern int drm_modeset_ctl(struct drm_device *dev, void *data,
			   struct drm_file *file_priv);
L
Linus Torvalds 已提交
1427 1428

				/* AGP/GART support (drm_agpsupport.h) */
1429 1430

#include <drm/drm_agpsupport.h>
L
Linus Torvalds 已提交
1431 1432

				/* Stub support (drm_stub.h) */
1433 1434 1435 1436 1437 1438 1439
extern int drm_setmaster_ioctl(struct drm_device *dev, void *data,
			       struct drm_file *file_priv);
extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
				struct drm_file *file_priv);
struct drm_master *drm_master_create(struct drm_minor *minor);
extern struct drm_master *drm_master_get(struct drm_master *master);
extern void drm_master_put(struct drm_master **master);
1440

1441
extern void drm_put_dev(struct drm_device *dev);
1442
extern void drm_unplug_dev(struct drm_device *dev);
D
Dave Airlie 已提交
1443
extern unsigned int drm_debug;
1444
extern unsigned int drm_rnodes;
1445

1446 1447
extern unsigned int drm_vblank_offdelay;
extern unsigned int drm_timestamp_precision;
1448
extern unsigned int drm_timestamp_monotonic;
1449

1450
extern struct class *drm_class;
1451
extern struct dentry *drm_debugfs_root;
L
Linus Torvalds 已提交
1452

1453 1454
extern struct idr drm_minors_idr;

1455
extern struct drm_local_map *drm_getsarea(struct drm_device *dev);
1456

1457 1458 1459 1460
				/* Debugfs support */
#if defined(CONFIG_DEBUG_FS)
extern int drm_debugfs_init(struct drm_minor *minor, int minor_id,
			    struct dentry *root);
1461 1462 1463 1464 1465
extern int drm_debugfs_create_files(const struct drm_info_list *files,
				    int count, struct dentry *root,
				    struct drm_minor *minor);
extern int drm_debugfs_remove_files(const struct drm_info_list *files,
				    int count, struct drm_minor *minor);
1466
extern int drm_debugfs_cleanup(struct drm_minor *minor);
1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490
#else
static inline int drm_debugfs_init(struct drm_minor *minor, int minor_id,
				   struct dentry *root)
{
	return 0;
}

static inline int drm_debugfs_create_files(const struct drm_info_list *files,
					   int count, struct dentry *root,
					   struct drm_minor *minor)
{
	return 0;
}

static inline int drm_debugfs_remove_files(const struct drm_info_list *files,
					   int count, struct drm_minor *minor)
{
	return 0;
}

static inline int drm_debugfs_cleanup(struct drm_minor *minor)
{
	return 0;
}
1491 1492 1493 1494 1495 1496 1497 1498 1499 1500
#endif

				/* Info file support */
extern int drm_name_info(struct seq_file *m, void *data);
extern int drm_vm_info(struct seq_file *m, void *data);
extern int drm_bufs_info(struct seq_file *m, void *data);
extern int drm_vblank_info(struct seq_file *m, void *data);
extern int drm_clients_info(struct seq_file *m, void* data);
extern int drm_gem_name_info(struct seq_file *m, void *data);

1501

A
Aaron Plattner 已提交
1502 1503
extern struct dma_buf *drm_gem_prime_export(struct drm_device *dev,
		struct drm_gem_object *obj, int flags);
1504 1505 1506
extern int drm_gem_prime_handle_to_fd(struct drm_device *dev,
		struct drm_file *file_priv, uint32_t handle, uint32_t flags,
		int *prime_fd);
A
Aaron Plattner 已提交
1507 1508
extern struct drm_gem_object *drm_gem_prime_import(struct drm_device *dev,
		struct dma_buf *dma_buf);
1509 1510
extern int drm_gem_prime_fd_to_handle(struct drm_device *dev,
		struct drm_file *file_priv, int prime_fd, uint32_t *handle);
1511
extern void drm_gem_dmabuf_release(struct dma_buf *dma_buf);
1512 1513 1514 1515 1516 1517

extern int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data,
					struct drm_file *file_priv);
extern int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data,
					struct drm_file *file_priv);

1518 1519
extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, struct page **pages,
					    dma_addr_t *addrs, int max_pages);
1520 1521 1522
extern struct sg_table *drm_prime_pages_to_sg(struct page **pages, int nr_pages);
extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg);

1523 1524 1525
int drm_gem_dumb_destroy(struct drm_file *file,
			 struct drm_device *dev,
			 uint32_t handle);
1526 1527 1528

void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv);
void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv);
1529
void drm_prime_remove_buf_handle_locked(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf);
1530

1531 1532 1533 1534
#if DRM_DEBUG_CODE
extern int drm_vma_info(struct seq_file *m, void *data);
#endif

L
Linus Torvalds 已提交
1535
				/* Scatter Gather Support (drm_scatter.h) */
1536
extern void drm_legacy_sg_cleanup(struct drm_device *dev);
1537
extern int drm_sg_alloc(struct drm_device *dev, void *data,
1538 1539 1540
			struct drm_file *file_priv);
extern int drm_sg_free(struct drm_device *dev, void *data,
		       struct drm_file *file_priv);
L
Linus Torvalds 已提交
1541

D
Dave Airlie 已提交
1542
			       /* ATI PCIGART support (ati_pcigart.h) */
1543
extern int drm_ati_pcigart_init(struct drm_device *dev,
D
Dave Airlie 已提交
1544
				struct drm_ati_pcigart_info * gart_info);
1545
extern int drm_ati_pcigart_cleanup(struct drm_device *dev,
D
Dave Airlie 已提交
1546
				   struct drm_ati_pcigart_info * gart_info);
L
Linus Torvalds 已提交
1547

1548
extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
1549
				       size_t align);
1550 1551
extern void __drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
extern void drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
L
Linus Torvalds 已提交
1552 1553

			       /* sysfs support (drm_sysfs.c) */
J
Jesse Barnes 已提交
1554
struct drm_sysfs_class;
1555
extern struct class *drm_sysfs_create(struct module *owner, char *name);
J
Jesse Barnes 已提交
1556
extern void drm_sysfs_destroy(void);
1557
extern int drm_sysfs_device_add(struct drm_minor *minor);
D
Dave Airlie 已提交
1558
extern void drm_sysfs_hotplug_event(struct drm_device *dev);
1559
extern void drm_sysfs_device_remove(struct drm_minor *minor);
D
Dave Airlie 已提交
1560 1561
extern int drm_sysfs_connector_add(struct drm_connector *connector);
extern void drm_sysfs_connector_remove(struct drm_connector *connector);
L
Linus Torvalds 已提交
1562

1563 1564
/* Graphics Execution Manager library functions (drm_gem.c) */
int drm_gem_init(struct drm_device *dev);
J
Jesse Barnes 已提交
1565
void drm_gem_destroy(struct drm_device *dev);
1566
void drm_gem_object_release(struct drm_gem_object *obj);
1567
void drm_gem_object_free(struct kref *kref);
D
Daniel Vetter 已提交
1568 1569
int drm_gem_object_init(struct drm_device *dev,
			struct drm_gem_object *obj, size_t size);
1570 1571
void drm_gem_private_object_init(struct drm_device *dev,
				 struct drm_gem_object *obj, size_t size);
1572 1573
void drm_gem_vm_open(struct vm_area_struct *vma);
void drm_gem_vm_close(struct vm_area_struct *vma);
1574 1575
int drm_gem_mmap_obj(struct drm_gem_object *obj, unsigned long obj_size,
		     struct vm_area_struct *vma);
J
Jesse Barnes 已提交
1576
int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
1577

1578
#include <drm/drm_global.h>
1579

1580 1581 1582 1583 1584 1585 1586 1587 1588
static inline void
drm_gem_object_reference(struct drm_gem_object *obj)
{
	kref_get(&obj->refcount);
}

static inline void
drm_gem_object_unreference(struct drm_gem_object *obj)
{
1589 1590 1591
	if (obj != NULL)
		kref_put(&obj->refcount, drm_gem_object_free);
}
1592

1593 1594 1595
static inline void
drm_gem_object_unreference_unlocked(struct drm_gem_object *obj)
{
1596
	if (obj && !atomic_add_unless(&obj->refcount.refcount, -1, 1)) {
1597
		struct drm_device *dev = obj->dev;
1598

1599
		mutex_lock(&dev->struct_mutex);
1600 1601
		if (likely(atomic_dec_and_test(&obj->refcount.refcount)))
			drm_gem_object_free(&obj->refcount);
1602 1603
		mutex_unlock(&dev->struct_mutex);
	}
1604 1605
}

1606 1607 1608
int drm_gem_handle_create_tail(struct drm_file *file_priv,
			       struct drm_gem_object *obj,
			       u32 *handlep);
1609 1610
int drm_gem_handle_create(struct drm_file *file_priv,
			  struct drm_gem_object *obj,
1611
			  u32 *handlep);
1612
int drm_gem_handle_delete(struct drm_file *filp, u32 handle);
1613

1614

1615 1616
void drm_gem_free_mmap_offset(struct drm_gem_object *obj);
int drm_gem_create_mmap_offset(struct drm_gem_object *obj);
1617
int drm_gem_create_mmap_offset_size(struct drm_gem_object *obj, size_t size);
1618

1619 1620 1621 1622
struct page **drm_gem_get_pages(struct drm_gem_object *obj, gfp_t gfpmask);
void drm_gem_put_pages(struct drm_gem_object *obj, struct page **pages,
		bool dirty, bool accessed);

1623 1624
struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev,
					     struct drm_file *filp,
1625
					     u32 handle);
1626 1627 1628 1629 1630 1631 1632 1633 1634
int drm_gem_close_ioctl(struct drm_device *dev, void *data,
			struct drm_file *file_priv);
int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
			struct drm_file *file_priv);
int drm_gem_open_ioctl(struct drm_device *dev, void *data,
		       struct drm_file *file_priv);
void drm_gem_open(struct drm_device *dev, struct drm_file *file_private);
void drm_gem_release(struct drm_device *dev, struct drm_file *file_private);

1635 1636 1637
extern void drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev);
extern void drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev);
extern void drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev);
L
Linus Torvalds 已提交
1638

1639 1640
static __inline__ struct drm_local_map *drm_core_findmap(struct drm_device *dev,
							 unsigned int token)
L
Linus Torvalds 已提交
1641
{
D
Dave Airlie 已提交
1642
	struct drm_map_list *_entry;
1643
	list_for_each_entry(_entry, &dev->maplist, head)
D
Dave Airlie 已提交
1644 1645
	    if (_entry->user_token == token)
		return _entry->map;
L
Linus Torvalds 已提交
1646 1647 1648
	return NULL;
}

1649
static __inline__ void drm_core_dropmap(struct drm_local_map *map)
1650
{
1651 1652
}

1653
#include <drm/drm_mem_util.h>
1654

D
David Herrmann 已提交
1655 1656
struct drm_device *drm_dev_alloc(struct drm_driver *driver,
				 struct device *parent);
1657
void drm_dev_free(struct drm_device *dev);
1658
int drm_dev_register(struct drm_device *dev, unsigned long flags);
1659
void drm_dev_unregister(struct drm_device *dev);
1660 1661 1662 1663 1664
/*@}*/

/* PCI section */
static __inline__ int drm_pci_device_is_agp(struct drm_device *dev)
{
D
Dave Airlie 已提交
1665 1666 1667
	if (dev->driver->device_is_agp != NULL) {
		int err = (*dev->driver->device_is_agp) (dev);

1668 1669 1670 1671 1672 1673 1674
		if (err != 2) {
			return err;
		}
	}

	return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP);
}
1675
void drm_pci_agp_destroy(struct drm_device *dev);
1676

1677 1678 1679
extern int drm_pci_init(struct drm_driver *driver, struct pci_driver *pdriver);
extern void drm_pci_exit(struct drm_driver *driver, struct pci_driver *pdriver);
extern int drm_get_pci_dev(struct pci_dev *pdev,
1680 1681
			   const struct pci_device_id *ent,
			   struct drm_driver *driver);
1682

1683 1684 1685 1686 1687
#define DRM_PCIE_SPEED_25 1
#define DRM_PCIE_SPEED_50 2
#define DRM_PCIE_SPEED_80 4

extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask);
1688 1689 1690 1691

/* platform section */
extern int drm_platform_init(struct drm_driver *driver, struct platform_device *platform_device);

1692 1693 1694 1695 1696 1697 1698 1699
/* returns true if currently okay to sleep */
static __inline__ bool drm_can_sleep(void)
{
	if (in_atomic() || in_dbg_master() || irqs_disabled())
		return false;
	return true;
}

D
Dave Airlie 已提交
1700
#endif				/* __KERNEL__ */
L
Linus Torvalds 已提交
1701
#endif