platform: x86: asus_acpi: world-writable procfs files
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / include / drm / drmP.h
blobffac157fb5b2958aa33df80184a535a5fb5b9af6
1 /**
2 * \file drmP.h
3 * Private header for Direct Rendering Manager
5 * \author Rickard E. (Rik) Faith <faith@valinux.com>
6 * \author Gareth Hughes <gareth@valinux.com>
7 */
9 /*
10 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
11 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
12 * All rights reserved.
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:
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.
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.
34 #ifndef _DRM_P_H_
35 #define _DRM_P_H_
37 #ifdef __KERNEL__
38 #ifdef __alpha__
39 /* add include of current.h so that "current" is defined
40 * before static inline funcs in wait.h. Doing this so we
41 * can build the DRM (part of PI DRI). 4/21/2000 S + B */
42 #include <asm/current.h>
43 #endif /* __alpha__ */
44 #include <linux/module.h>
45 #include <linux/kernel.h>
46 #include <linux/miscdevice.h>
47 #include <linux/fs.h>
48 #include <linux/proc_fs.h>
49 #include <linux/init.h>
50 #include <linux/file.h>
51 #include <linux/pci.h>
52 #include <linux/jiffies.h>
53 #include <linux/smp_lock.h> /* For (un)lock_kernel */
54 #include <linux/dma-mapping.h>
55 #include <linux/mm.h>
56 #include <linux/cdev.h>
57 #include <linux/mutex.h>
58 #if defined(__alpha__) || defined(__powerpc__)
59 #include <asm/pgtable.h> /* For pte_wrprotect */
60 #endif
61 #include <asm/io.h>
62 #include <asm/mman.h>
63 #include <asm/uaccess.h>
64 #ifdef CONFIG_MTRR
65 #include <asm/mtrr.h>
66 #endif
67 #if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
68 #include <linux/types.h>
69 #include <linux/agp_backend.h>
70 #endif
71 #include <linux/workqueue.h>
72 #include <linux/poll.h>
73 #include <asm/pgalloc.h>
74 #include "drm.h"
76 #include <linux/idr.h>
78 #define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE)))
79 #define __OS_HAS_MTRR (defined(CONFIG_MTRR))
81 struct drm_file;
82 struct drm_device;
84 #include "drm_os_linux.h"
85 #include "drm_hashtab.h"
86 #include "drm_mm.h"
88 #define DRM_UT_CORE 0x01
89 #define DRM_UT_DRIVER 0x02
90 #define DRM_UT_KMS 0x04
92 * Three debug levels are defined.
93 * drm_core, drm_driver, drm_kms
94 * drm_core level can be used in the generic drm code. For example:
95 * drm_ioctl, drm_mm, drm_memory
96 * The macro definiton of DRM_DEBUG is used.
97 * DRM_DEBUG(fmt, args...)
98 * The debug info by using the DRM_DEBUG can be obtained by adding
99 * the boot option of "drm.debug=1".
101 * drm_driver level can be used in the specific drm driver. It is used
102 * to add the debug info related with the drm driver. For example:
103 * i915_drv, i915_dma, i915_gem, radeon_drv,
104 * The macro definition of DRM_DEBUG_DRIVER can be used.
105 * DRM_DEBUG_DRIVER(fmt, args...)
106 * The debug info by using the DRM_DEBUG_DRIVER can be obtained by
107 * adding the boot option of "drm.debug=0x02"
109 * drm_kms level can be used in the KMS code related with specific drm driver.
110 * It is used to add the debug info related with KMS mode. For example:
111 * the connector/crtc ,
112 * The macro definition of DRM_DEBUG_KMS can be used.
113 * DRM_DEBUG_KMS(fmt, args...)
114 * The debug info by using the DRM_DEBUG_KMS can be obtained by
115 * adding the boot option of "drm.debug=0x04"
117 * If we add the boot option of "drm.debug=0x06", we can get the debug info by
118 * using the DRM_DEBUG_KMS and DRM_DEBUG_DRIVER.
119 * If we add the boot option of "drm.debug=0x05", we can get the debug info by
120 * using the DRM_DEBUG_KMS and DRM_DEBUG.
123 extern void drm_ut_debug_printk(unsigned int request_level,
124 const char *prefix,
125 const char *function_name,
126 const char *format, ...);
127 /***********************************************************************/
128 /** \name DRM template customization defaults */
129 /*@{*/
131 /* driver capabilities and requirements mask */
132 #define DRIVER_USE_AGP 0x1
133 #define DRIVER_REQUIRE_AGP 0x2
134 #define DRIVER_USE_MTRR 0x4
135 #define DRIVER_PCI_DMA 0x8
136 #define DRIVER_SG 0x10
137 #define DRIVER_HAVE_DMA 0x20
138 #define DRIVER_HAVE_IRQ 0x40
139 #define DRIVER_IRQ_SHARED 0x80
140 #define DRIVER_IRQ_VBL 0x100
141 #define DRIVER_DMA_QUEUE 0x200
142 #define DRIVER_FB_DMA 0x400
143 #define DRIVER_IRQ_VBL2 0x800
144 #define DRIVER_GEM 0x1000
145 #define DRIVER_MODESET 0x2000
147 /***********************************************************************/
148 /** \name Begin the DRM... */
149 /*@{*/
151 #define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then
152 also include looping detection. */
154 #define DRM_MAGIC_HASH_ORDER 4 /**< Size of key hash table. Must be power of 2. */
155 #define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */
156 #define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */
157 #define DRM_LOOPING_LIMIT 5000000
158 #define DRM_TIME_SLICE (HZ/20) /**< Time slice for GLXContexts */
159 #define DRM_LOCK_SLICE 1 /**< Time slice for lock, in jiffies */
161 #define DRM_FLAG_DEBUG 0x01
163 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
164 #define DRM_MAP_HASH_OFFSET 0x10000000
166 /*@}*/
168 /***********************************************************************/
169 /** \name Macros to make printk easier */
170 /*@{*/
173 * Error output.
175 * \param fmt printf() like format string.
176 * \param arg arguments
178 #define DRM_ERROR(fmt, arg...) \
179 printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* " fmt , __func__ , ##arg)
182 * Memory error output.
184 * \param area memory area where the error occurred.
185 * \param fmt printf() like format string.
186 * \param arg arguments
188 #define DRM_MEM_ERROR(area, fmt, arg...) \
189 printk(KERN_ERR "[" DRM_NAME ":%s:%s] *ERROR* " fmt , __func__, \
190 drm_mem_stats[area].name , ##arg)
192 #define DRM_INFO(fmt, arg...) printk(KERN_INFO "[" DRM_NAME "] " fmt , ##arg)
195 * Debug output.
197 * \param fmt printf() like format string.
198 * \param arg arguments
200 #if DRM_DEBUG_CODE
201 #define DRM_DEBUG(fmt, args...) \
202 do { \
203 drm_ut_debug_printk(DRM_UT_CORE, DRM_NAME, \
204 __func__, fmt, ##args); \
205 } while (0)
207 #define DRM_DEBUG_DRIVER(fmt, args...) \
208 do { \
209 drm_ut_debug_printk(DRM_UT_DRIVER, DRM_NAME, \
210 __func__, fmt, ##args); \
211 } while (0)
212 #define DRM_DEBUG_KMS(fmt, args...) \
213 do { \
214 drm_ut_debug_printk(DRM_UT_KMS, DRM_NAME, \
215 __func__, fmt, ##args); \
216 } while (0)
217 #define DRM_LOG(fmt, args...) \
218 do { \
219 drm_ut_debug_printk(DRM_UT_CORE, NULL, \
220 NULL, fmt, ##args); \
221 } while (0)
222 #define DRM_LOG_KMS(fmt, args...) \
223 do { \
224 drm_ut_debug_printk(DRM_UT_KMS, NULL, \
225 NULL, fmt, ##args); \
226 } while (0)
227 #define DRM_LOG_MODE(fmt, args...) \
228 do { \
229 drm_ut_debug_printk(DRM_UT_MODE, NULL, \
230 NULL, fmt, ##args); \
231 } while (0)
232 #define DRM_LOG_DRIVER(fmt, args...) \
233 do { \
234 drm_ut_debug_printk(DRM_UT_DRIVER, NULL, \
235 NULL, fmt, ##args); \
236 } while (0)
237 #else
238 #define DRM_DEBUG_DRIVER(fmt, args...) do { } while (0)
239 #define DRM_DEBUG_KMS(fmt, args...) do { } while (0)
240 #define DRM_DEBUG(fmt, arg...) do { } while (0)
241 #define DRM_LOG(fmt, arg...) do { } while (0)
242 #define DRM_LOG_KMS(fmt, args...) do { } while (0)
243 #define DRM_LOG_MODE(fmt, arg...) do { } while (0)
244 #define DRM_LOG_DRIVER(fmt, arg...) do { } while (0)
246 #endif
248 /*@}*/
250 /***********************************************************************/
251 /** \name Internal types and structures */
252 /*@{*/
254 #define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x)
256 #define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
257 #define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
259 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
262 * Test that the hardware lock is held by the caller, returning otherwise.
264 * \param dev DRM device.
265 * \param filp file pointer of the caller.
267 #define LOCK_TEST_WITH_RETURN( dev, _file_priv ) \
268 do { \
269 if (!_DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock) || \
270 _file_priv->master->lock.file_priv != _file_priv) { \
271 DRM_ERROR( "%s called without lock held, held %d owner %p %p\n",\
272 __func__, _DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock),\
273 _file_priv->master->lock.file_priv, _file_priv); \
274 return -EINVAL; \
276 } while (0)
279 * Ioctl function type.
281 * \param inode device inode.
282 * \param file_priv DRM file private pointer.
283 * \param cmd command.
284 * \param arg argument.
286 typedef int drm_ioctl_t(struct drm_device *dev, void *data,
287 struct drm_file *file_priv);
289 typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
290 unsigned long arg);
292 #define DRM_IOCTL_NR(n) _IOC_NR(n)
293 #define DRM_MAJOR 226
295 #define DRM_AUTH 0x1
296 #define DRM_MASTER 0x2
297 #define DRM_ROOT_ONLY 0x4
298 #define DRM_CONTROL_ALLOW 0x8
299 #define DRM_UNLOCKED 0x10
301 struct drm_ioctl_desc {
302 unsigned int cmd;
303 int flags;
304 drm_ioctl_t *func;
308 * Creates a driver or general drm_ioctl_desc array entry for the given
309 * ioctl, for use by drm_ioctl().
311 #define DRM_IOCTL_DEF(ioctl, _func, _flags) \
312 [DRM_IOCTL_NR(ioctl)] = {.cmd = ioctl, .func = _func, .flags = _flags}
314 struct drm_magic_entry {
315 struct list_head head;
316 struct drm_hash_item hash_item;
317 struct drm_file *priv;
320 struct drm_vma_entry {
321 struct list_head head;
322 struct vm_area_struct *vma;
323 pid_t pid;
327 * DMA buffer.
329 struct drm_buf {
330 int idx; /**< Index into master buflist */
331 int total; /**< Buffer size */
332 int order; /**< log-base-2(total) */
333 int used; /**< Amount of buffer in use (for DMA) */
334 unsigned long offset; /**< Byte offset (used internally) */
335 void *address; /**< Address of buffer */
336 unsigned long bus_address; /**< Bus address of buffer */
337 struct drm_buf *next; /**< Kernel-only: used for free list */
338 __volatile__ int waiting; /**< On kernel DMA queue */
339 __volatile__ int pending; /**< On hardware DMA queue */
340 wait_queue_head_t dma_wait; /**< Processes waiting */
341 struct drm_file *file_priv; /**< Private of holding file descr */
342 int context; /**< Kernel queue for this buffer */
343 int while_locked; /**< Dispatch this buffer while locked */
344 enum {
345 DRM_LIST_NONE = 0,
346 DRM_LIST_FREE = 1,
347 DRM_LIST_WAIT = 2,
348 DRM_LIST_PEND = 3,
349 DRM_LIST_PRIO = 4,
350 DRM_LIST_RECLAIM = 5
351 } list; /**< Which list we're on */
353 int dev_priv_size; /**< Size of buffer private storage */
354 void *dev_private; /**< Per-buffer private storage */
357 /** bufs is one longer than it has to be */
358 struct drm_waitlist {
359 int count; /**< Number of possible buffers */
360 struct drm_buf **bufs; /**< List of pointers to buffers */
361 struct drm_buf **rp; /**< Read pointer */
362 struct drm_buf **wp; /**< Write pointer */
363 struct drm_buf **end; /**< End pointer */
364 spinlock_t read_lock;
365 spinlock_t write_lock;
368 struct drm_freelist {
369 int initialized; /**< Freelist in use */
370 atomic_t count; /**< Number of free buffers */
371 struct drm_buf *next; /**< End pointer */
373 wait_queue_head_t waiting; /**< Processes waiting on free bufs */
374 int low_mark; /**< Low water mark */
375 int high_mark; /**< High water mark */
376 atomic_t wfh; /**< If waiting for high mark */
377 spinlock_t lock;
380 typedef struct drm_dma_handle {
381 dma_addr_t busaddr;
382 void *vaddr;
383 size_t size;
384 } drm_dma_handle_t;
387 * Buffer entry. There is one of this for each buffer size order.
389 struct drm_buf_entry {
390 int buf_size; /**< size */
391 int buf_count; /**< number of buffers */
392 struct drm_buf *buflist; /**< buffer list */
393 int seg_count;
394 int page_order;
395 struct drm_dma_handle **seglist;
397 struct drm_freelist freelist;
400 /* Event queued up for userspace to read */
401 struct drm_pending_event {
402 struct drm_event *event;
403 struct list_head link;
404 struct drm_file *file_priv;
405 void (*destroy)(struct drm_pending_event *event);
408 /** File private data */
409 struct drm_file {
410 int authenticated;
411 pid_t pid;
412 uid_t uid;
413 drm_magic_t magic;
414 unsigned long ioctl_count;
415 struct list_head lhead;
416 struct drm_minor *minor;
417 unsigned long lock_count;
419 /** Mapping of mm object handles to object pointers. */
420 struct idr object_idr;
421 /** Lock for synchronization of access to object_idr. */
422 spinlock_t table_lock;
424 struct file *filp;
425 void *driver_priv;
427 int is_master; /* this file private is a master for a minor */
428 struct drm_master *master; /* master this node is currently associated with
429 N.B. not always minor->master */
430 struct list_head fbs;
432 wait_queue_head_t event_wait;
433 struct list_head event_list;
434 int event_space;
437 /** Wait queue */
438 struct drm_queue {
439 atomic_t use_count; /**< Outstanding uses (+1) */
440 atomic_t finalization; /**< Finalization in progress */
441 atomic_t block_count; /**< Count of processes waiting */
442 atomic_t block_read; /**< Queue blocked for reads */
443 wait_queue_head_t read_queue; /**< Processes waiting on block_read */
444 atomic_t block_write; /**< Queue blocked for writes */
445 wait_queue_head_t write_queue; /**< Processes waiting on block_write */
446 atomic_t total_queued; /**< Total queued statistic */
447 atomic_t total_flushed; /**< Total flushes statistic */
448 atomic_t total_locks; /**< Total locks statistics */
449 enum drm_ctx_flags flags; /**< Context preserving and 2D-only */
450 struct drm_waitlist waitlist; /**< Pending buffers */
451 wait_queue_head_t flush_queue; /**< Processes waiting until flush */
455 * Lock data.
457 struct drm_lock_data {
458 struct drm_hw_lock *hw_lock; /**< Hardware lock */
459 /** Private of lock holder's file (NULL=kernel) */
460 struct drm_file *file_priv;
461 wait_queue_head_t lock_queue; /**< Queue of blocked processes */
462 unsigned long lock_time; /**< Time of last lock in jiffies */
463 spinlock_t spinlock;
464 uint32_t kernel_waiters;
465 uint32_t user_waiters;
466 int idle_has_lock;
470 * DMA data.
472 struct drm_device_dma {
474 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */
475 int buf_count; /**< total number of buffers */
476 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */
477 int seg_count;
478 int page_count; /**< number of pages */
479 unsigned long *pagelist; /**< page list */
480 unsigned long byte_count;
481 enum {
482 _DRM_DMA_USE_AGP = 0x01,
483 _DRM_DMA_USE_SG = 0x02,
484 _DRM_DMA_USE_FB = 0x04,
485 _DRM_DMA_USE_PCI_RO = 0x08
486 } flags;
491 * AGP memory entry. Stored as a doubly linked list.
493 struct drm_agp_mem {
494 unsigned long handle; /**< handle */
495 DRM_AGP_MEM *memory;
496 unsigned long bound; /**< address */
497 int pages;
498 struct list_head head;
502 * AGP data.
504 * \sa drm_agp_init() and drm_device::agp.
506 struct drm_agp_head {
507 DRM_AGP_KERN agp_info; /**< AGP device information */
508 struct list_head memory;
509 unsigned long mode; /**< AGP mode */
510 struct agp_bridge_data *bridge;
511 int enabled; /**< whether the AGP bus as been enabled */
512 int acquired; /**< whether the AGP device has been acquired */
513 unsigned long base;
514 int agp_mtrr;
515 int cant_use_aperture;
516 unsigned long page_mask;
520 * Scatter-gather memory.
522 struct drm_sg_mem {
523 unsigned long handle;
524 void *virtual;
525 int pages;
526 struct page **pagelist;
527 dma_addr_t *busaddr;
530 struct drm_sigdata {
531 int context;
532 struct drm_hw_lock *lock;
537 * Kernel side of a mapping
539 struct drm_local_map {
540 resource_size_t offset; /**< Requested physical address (0 for SAREA)*/
541 unsigned long size; /**< Requested physical size (bytes) */
542 enum drm_map_type type; /**< Type of memory to map */
543 enum drm_map_flags flags; /**< Flags */
544 void *handle; /**< User-space: "Handle" to pass to mmap() */
545 /**< Kernel-space: kernel-virtual address */
546 int mtrr; /**< MTRR slot used */
549 typedef struct drm_local_map drm_local_map_t;
552 * Mappings list
554 struct drm_map_list {
555 struct list_head head; /**< list head */
556 struct drm_hash_item hash;
557 struct drm_local_map *map; /**< mapping */
558 uint64_t user_token;
559 struct drm_master *master;
560 struct drm_mm_node *file_offset_node; /**< fake offset */
564 * Context handle list
566 struct drm_ctx_list {
567 struct list_head head; /**< list head */
568 drm_context_t handle; /**< context handle */
569 struct drm_file *tag; /**< associated fd private data */
572 /* location of GART table */
573 #define DRM_ATI_GART_MAIN 1
574 #define DRM_ATI_GART_FB 2
576 #define DRM_ATI_GART_PCI 1
577 #define DRM_ATI_GART_PCIE 2
578 #define DRM_ATI_GART_IGP 3
580 struct drm_ati_pcigart_info {
581 int gart_table_location;
582 int gart_reg_if;
583 void *addr;
584 dma_addr_t bus_addr;
585 dma_addr_t table_mask;
586 struct drm_dma_handle *table_handle;
587 struct drm_local_map mapping;
588 int table_size;
592 * GEM specific mm private for tracking GEM objects
594 struct drm_gem_mm {
595 struct drm_mm offset_manager; /**< Offset mgmt for buffer objects */
596 struct drm_open_hash offset_hash; /**< User token hash table for maps */
600 * This structure defines the drm_mm memory object, which will be used by the
601 * DRM for its buffer objects.
603 struct drm_gem_object {
604 /** Reference count of this object */
605 struct kref refcount;
607 /** Handle count of this object. Each handle also holds a reference */
608 struct kref handlecount;
610 /** Related drm device */
611 struct drm_device *dev;
613 /** File representing the shmem storage */
614 struct file *filp;
616 /* Mapping info for this object */
617 struct drm_map_list map_list;
620 * Size of the object, in bytes. Immutable over the object's
621 * lifetime.
623 size_t size;
626 * Global name for this object, starts at 1. 0 means unnamed.
627 * Access is covered by the object_name_lock in the related drm_device
629 int name;
632 * Memory domains. These monitor which caches contain read/write data
633 * related to the object. When transitioning from one set of domains
634 * to another, the driver is called to ensure that caches are suitably
635 * flushed and invalidated
637 uint32_t read_domains;
638 uint32_t write_domain;
641 * While validating an exec operation, the
642 * new read/write domain values are computed here.
643 * They will be transferred to the above values
644 * at the point that any cache flushing occurs
646 uint32_t pending_read_domains;
647 uint32_t pending_write_domain;
649 void *driver_private;
652 #include "drm_crtc.h"
654 /* per-master structure */
655 struct drm_master {
657 struct kref refcount; /* refcount for this master */
659 struct list_head head; /**< each minor contains a list of masters */
660 struct drm_minor *minor; /**< link back to minor we are a master for */
662 char *unique; /**< Unique identifier: e.g., busid */
663 int unique_len; /**< Length of unique field */
664 int unique_size; /**< amount allocated */
666 int blocked; /**< Blocked due to VC switch? */
668 /** \name Authentication */
669 /*@{ */
670 struct drm_open_hash magiclist;
671 struct list_head magicfree;
672 /*@} */
674 struct drm_lock_data lock; /**< Information on hardware lock */
676 void *driver_priv; /**< Private structure for driver to use */
680 * DRM driver structure. This structure represent the common code for
681 * a family of cards. There will one drm_device for each card present
682 * in this family
684 struct drm_driver {
685 int (*load) (struct drm_device *, unsigned long flags);
686 int (*firstopen) (struct drm_device *);
687 int (*open) (struct drm_device *, struct drm_file *);
688 void (*preclose) (struct drm_device *, struct drm_file *file_priv);
689 void (*postclose) (struct drm_device *, struct drm_file *);
690 void (*lastclose) (struct drm_device *);
691 int (*unload) (struct drm_device *);
692 int (*suspend) (struct drm_device *, pm_message_t state);
693 int (*resume) (struct drm_device *);
694 int (*dma_ioctl) (struct drm_device *dev, void *data, struct drm_file *file_priv);
695 void (*dma_ready) (struct drm_device *);
696 int (*dma_quiescent) (struct drm_device *);
697 int (*context_ctor) (struct drm_device *dev, int context);
698 int (*context_dtor) (struct drm_device *dev, int context);
699 int (*kernel_context_switch) (struct drm_device *dev, int old,
700 int new);
701 void (*kernel_context_switch_unlock) (struct drm_device *dev);
704 * get_vblank_counter - get raw hardware vblank counter
705 * @dev: DRM device
706 * @crtc: counter to fetch
708 * Driver callback for fetching a raw hardware vblank counter
709 * for @crtc. If a device doesn't have a hardware counter, the
710 * driver can simply return the value of drm_vblank_count and
711 * make the enable_vblank() and disable_vblank() hooks into no-ops,
712 * leaving interrupts enabled at all times.
714 * Wraparound handling and loss of events due to modesetting is dealt
715 * with in the DRM core code.
717 * RETURNS
718 * Raw vblank counter value.
720 u32 (*get_vblank_counter) (struct drm_device *dev, int crtc);
723 * enable_vblank - enable vblank interrupt events
724 * @dev: DRM device
725 * @crtc: which irq to enable
727 * Enable vblank interrupts for @crtc. If the device doesn't have
728 * a hardware vblank counter, this routine should be a no-op, since
729 * interrupts will have to stay on to keep the count accurate.
731 * RETURNS
732 * Zero on success, appropriate errno if the given @crtc's vblank
733 * interrupt cannot be enabled.
735 int (*enable_vblank) (struct drm_device *dev, int crtc);
738 * disable_vblank - disable vblank interrupt events
739 * @dev: DRM device
740 * @crtc: which irq to enable
742 * Disable vblank interrupts for @crtc. If the device doesn't have
743 * a hardware vblank counter, this routine should be a no-op, since
744 * interrupts will have to stay on to keep the count accurate.
746 void (*disable_vblank) (struct drm_device *dev, int crtc);
749 * Called by \c drm_device_is_agp. Typically used to determine if a
750 * card is really attached to AGP or not.
752 * \param dev DRM device handle
754 * \returns
755 * One of three values is returned depending on whether or not the
756 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
757 * (return of 1), or may or may not be AGP (return of 2).
759 int (*device_is_agp) (struct drm_device *dev);
761 /* these have to be filled in */
763 irqreturn_t(*irq_handler) (DRM_IRQ_ARGS);
764 void (*irq_preinstall) (struct drm_device *dev);
765 int (*irq_postinstall) (struct drm_device *dev);
766 void (*irq_uninstall) (struct drm_device *dev);
767 void (*reclaim_buffers) (struct drm_device *dev,
768 struct drm_file * file_priv);
769 void (*reclaim_buffers_locked) (struct drm_device *dev,
770 struct drm_file *file_priv);
771 void (*reclaim_buffers_idlelocked) (struct drm_device *dev,
772 struct drm_file *file_priv);
773 resource_size_t (*get_map_ofs) (struct drm_local_map * map);
774 resource_size_t (*get_reg_ofs) (struct drm_device *dev);
775 void (*set_version) (struct drm_device *dev,
776 struct drm_set_version *sv);
778 /* Master routines */
779 int (*master_create)(struct drm_device *dev, struct drm_master *master);
780 void (*master_destroy)(struct drm_device *dev, struct drm_master *master);
782 * master_set is called whenever the minor master is set.
783 * master_drop is called whenever the minor master is dropped.
786 int (*master_set)(struct drm_device *dev, struct drm_file *file_priv,
787 bool from_open);
788 void (*master_drop)(struct drm_device *dev, struct drm_file *file_priv,
789 bool from_release);
791 int (*proc_init)(struct drm_minor *minor);
792 void (*proc_cleanup)(struct drm_minor *minor);
793 int (*debugfs_init)(struct drm_minor *minor);
794 void (*debugfs_cleanup)(struct drm_minor *minor);
797 * Driver-specific constructor for drm_gem_objects, to set up
798 * obj->driver_private.
800 * Returns 0 on success.
802 int (*gem_init_object) (struct drm_gem_object *obj);
803 void (*gem_free_object) (struct drm_gem_object *obj);
805 /* vga arb irq handler */
806 void (*vgaarb_irq)(struct drm_device *dev, bool state);
808 /* Driver private ops for this object */
809 struct vm_operations_struct *gem_vm_ops;
811 int major;
812 int minor;
813 int patchlevel;
814 char *name;
815 char *desc;
816 char *date;
818 u32 driver_features;
819 int dev_priv_size;
820 struct drm_ioctl_desc *ioctls;
821 int num_ioctls;
822 struct file_operations fops;
823 struct pci_driver pci_driver;
824 /* List of devices hanging off this driver */
825 struct list_head device_list;
828 #define DRM_MINOR_UNASSIGNED 0
829 #define DRM_MINOR_LEGACY 1
830 #define DRM_MINOR_CONTROL 2
831 #define DRM_MINOR_RENDER 3
835 * debugfs node list. This structure represents a debugfs file to
836 * be created by the drm core
838 struct drm_debugfs_list {
839 const char *name; /** file name */
840 int (*show)(struct seq_file*, void*); /** show callback */
841 u32 driver_features; /**< Required driver features for this entry */
845 * debugfs node structure. This structure represents a debugfs file.
847 struct drm_debugfs_node {
848 struct list_head list;
849 struct drm_minor *minor;
850 struct drm_debugfs_list *debugfs_ent;
851 struct dentry *dent;
855 * Info file list entry. This structure represents a debugfs or proc file to
856 * be created by the drm core
858 struct drm_info_list {
859 const char *name; /** file name */
860 int (*show)(struct seq_file*, void*); /** show callback */
861 u32 driver_features; /**< Required driver features for this entry */
862 void *data;
866 * debugfs node structure. This structure represents a debugfs file.
868 struct drm_info_node {
869 struct list_head list;
870 struct drm_minor *minor;
871 struct drm_info_list *info_ent;
872 struct dentry *dent;
876 * DRM minor structure. This structure represents a drm minor number.
878 struct drm_minor {
879 int index; /**< Minor device number */
880 int type; /**< Control or render */
881 dev_t device; /**< Device number for mknod */
882 struct device kdev; /**< Linux device */
883 struct drm_device *dev;
885 struct proc_dir_entry *proc_root; /**< proc directory entry */
886 struct drm_info_node proc_nodes;
887 struct dentry *debugfs_root;
888 struct drm_info_node debugfs_nodes;
890 struct drm_master *master; /* currently active master for this node */
891 struct list_head master_list;
892 struct drm_mode_group mode_group;
895 struct drm_pending_vblank_event {
896 struct drm_pending_event base;
897 int pipe;
898 struct drm_event_vblank event;
902 * DRM device structure. This structure represent a complete card that
903 * may contain multiple heads.
905 struct drm_device {
906 struct list_head driver_item; /**< list of devices per driver */
907 char *devname; /**< For /proc/interrupts */
908 int if_version; /**< Highest interface version set */
910 /** \name Locks */
911 /*@{ */
912 spinlock_t count_lock; /**< For inuse, drm_device::open_count, drm_device::buf_use */
913 struct mutex struct_mutex; /**< For others */
914 /*@} */
916 /** \name Usage Counters */
917 /*@{ */
918 int open_count; /**< Outstanding files open */
919 atomic_t ioctl_count; /**< Outstanding IOCTLs pending */
920 atomic_t vma_count; /**< Outstanding vma areas open */
921 int buf_use; /**< Buffers in use -- cannot alloc */
922 atomic_t buf_alloc; /**< Buffer allocation in progress */
923 /*@} */
925 /** \name Performance counters */
926 /*@{ */
927 unsigned long counters;
928 enum drm_stat_type types[15];
929 atomic_t counts[15];
930 /*@} */
932 struct list_head filelist;
934 /** \name Memory management */
935 /*@{ */
936 struct list_head maplist; /**< Linked list of regions */
937 int map_count; /**< Number of mappable regions */
938 struct drm_open_hash map_hash; /**< User token hash table for maps */
940 /** \name Context handle management */
941 /*@{ */
942 struct list_head ctxlist; /**< Linked list of context handles */
943 int ctx_count; /**< Number of context handles */
944 struct mutex ctxlist_mutex; /**< For ctxlist */
946 struct idr ctx_idr;
948 struct list_head vmalist; /**< List of vmas (for debugging) */
950 /*@} */
952 /** \name DMA queues (contexts) */
953 /*@{ */
954 int queue_count; /**< Number of active DMA queues */
955 int queue_reserved; /**< Number of reserved DMA queues */
956 int queue_slots; /**< Actual length of queuelist */
957 struct drm_queue **queuelist; /**< Vector of pointers to DMA queues */
958 struct drm_device_dma *dma; /**< Optional pointer for DMA support */
959 /*@} */
961 /** \name Context support */
962 /*@{ */
963 int irq_enabled; /**< True if irq handler is enabled */
964 __volatile__ long context_flag; /**< Context swapping flag */
965 __volatile__ long interrupt_flag; /**< Interruption handler flag */
966 __volatile__ long dma_flag; /**< DMA dispatch flag */
967 struct timer_list timer; /**< Timer for delaying ctx switch */
968 wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */
969 int last_checked; /**< Last context checked for DMA */
970 int last_context; /**< Last current context */
971 unsigned long last_switch; /**< jiffies at last context switch */
972 /*@} */
974 struct work_struct work;
975 /** \name VBLANK IRQ support */
976 /*@{ */
979 * At load time, disabling the vblank interrupt won't be allowed since
980 * old clients may not call the modeset ioctl and therefore misbehave.
981 * Once the modeset ioctl *has* been called though, we can safely
982 * disable them when unused.
984 int vblank_disable_allowed;
986 wait_queue_head_t *vbl_queue; /**< VBLANK wait queue */
987 atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */
988 spinlock_t vbl_lock;
989 atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */
990 u32 *last_vblank; /* protected by dev->vbl_lock, used */
991 /* for wraparound handling */
992 int *vblank_enabled; /* so we don't call enable more than
993 once per disable */
994 int *vblank_inmodeset; /* Display driver is setting mode */
995 u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */
996 struct timer_list vblank_disable_timer;
998 u32 max_vblank_count; /**< size of vblank counter register */
1001 * List of events
1003 struct list_head vblank_event_list;
1004 spinlock_t event_lock;
1006 /*@} */
1007 cycles_t ctx_start;
1008 cycles_t lck_start;
1010 struct fasync_struct *buf_async;/**< Processes waiting for SIGIO */
1011 wait_queue_head_t buf_readers; /**< Processes waiting to read */
1012 wait_queue_head_t buf_writers; /**< Processes waiting to ctx switch */
1014 struct drm_agp_head *agp; /**< AGP data */
1016 struct pci_dev *pdev; /**< PCI device structure */
1017 int pci_vendor; /**< PCI vendor id */
1018 int pci_device; /**< PCI device id */
1019 #ifdef __alpha__
1020 struct pci_controller *hose;
1021 #endif
1022 struct drm_sg_mem *sg; /**< Scatter gather memory */
1023 int num_crtcs; /**< Number of CRTCs on this device */
1024 void *dev_private; /**< device private data */
1025 void *mm_private;
1026 struct address_space *dev_mapping;
1027 struct drm_sigdata sigdata; /**< For block_all_signals */
1028 sigset_t sigmask;
1030 struct drm_driver *driver;
1031 struct drm_local_map *agp_buffer_map;
1032 unsigned int agp_buffer_token;
1033 struct drm_minor *control; /**< Control node for card */
1034 struct drm_minor *primary; /**< render type primary screen head */
1036 /** \name Drawable information */
1037 /*@{ */
1038 spinlock_t drw_lock;
1039 struct idr drw_idr;
1040 /*@} */
1042 struct drm_mode_config mode_config; /**< Current mode config */
1044 /** \name GEM information */
1045 /*@{ */
1046 spinlock_t object_name_lock;
1047 struct idr object_name_idr;
1048 atomic_t object_count;
1049 atomic_t object_memory;
1050 atomic_t pin_count;
1051 atomic_t pin_memory;
1052 atomic_t gtt_count;
1053 atomic_t gtt_memory;
1054 uint32_t gtt_total;
1055 uint32_t invalidate_domains; /* domains pending invalidation */
1056 uint32_t flush_domains; /* domains pending flush */
1057 /*@} */
1061 static inline int drm_dev_to_irq(struct drm_device *dev)
1063 return dev->pdev->irq;
1066 static __inline__ int drm_core_check_feature(struct drm_device *dev,
1067 int feature)
1069 return ((dev->driver->driver_features & feature) ? 1 : 0);
1072 #ifdef __alpha__
1073 #define drm_get_pci_domain(dev) dev->hose->index
1074 #else
1075 #define drm_get_pci_domain(dev) 0
1076 #endif
1078 #if __OS_HAS_AGP
1079 static inline int drm_core_has_AGP(struct drm_device *dev)
1081 return drm_core_check_feature(dev, DRIVER_USE_AGP);
1083 #else
1084 #define drm_core_has_AGP(dev) (0)
1085 #endif
1087 #if __OS_HAS_MTRR
1088 static inline int drm_core_has_MTRR(struct drm_device *dev)
1090 return drm_core_check_feature(dev, DRIVER_USE_MTRR);
1093 #define DRM_MTRR_WC MTRR_TYPE_WRCOMB
1095 static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
1096 unsigned int flags)
1098 return mtrr_add(offset, size, flags, 1);
1101 static inline int drm_mtrr_del(int handle, unsigned long offset,
1102 unsigned long size, unsigned int flags)
1104 return mtrr_del(handle, offset, size);
1107 #else
1108 #define drm_core_has_MTRR(dev) (0)
1110 #define DRM_MTRR_WC 0
1112 static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
1113 unsigned int flags)
1115 return 0;
1118 static inline int drm_mtrr_del(int handle, unsigned long offset,
1119 unsigned long size, unsigned int flags)
1121 return 0;
1123 #endif
1125 /******************************************************************/
1126 /** \name Internal function definitions */
1127 /*@{*/
1129 /* Driver support (drm_drv.h) */
1130 extern int drm_init(struct drm_driver *driver);
1131 extern void drm_exit(struct drm_driver *driver);
1132 extern long drm_ioctl(struct file *filp,
1133 unsigned int cmd, unsigned long arg);
1134 extern long drm_compat_ioctl(struct file *filp,
1135 unsigned int cmd, unsigned long arg);
1136 extern int drm_lastclose(struct drm_device *dev);
1138 /* Device support (drm_fops.h) */
1139 extern int drm_open(struct inode *inode, struct file *filp);
1140 extern int drm_stub_open(struct inode *inode, struct file *filp);
1141 extern int drm_fasync(int fd, struct file *filp, int on);
1142 extern ssize_t drm_read(struct file *filp, char __user *buffer,
1143 size_t count, loff_t *offset);
1144 extern int drm_release(struct inode *inode, struct file *filp);
1146 /* Mapping support (drm_vm.h) */
1147 extern int drm_mmap(struct file *filp, struct vm_area_struct *vma);
1148 extern int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma);
1149 extern void drm_vm_open_locked(struct vm_area_struct *vma);
1150 extern resource_size_t drm_core_get_map_ofs(struct drm_local_map * map);
1151 extern resource_size_t drm_core_get_reg_ofs(struct drm_device *dev);
1152 extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait);
1154 /* Memory management support (drm_memory.h) */
1155 #include "drm_memory.h"
1156 extern void drm_mem_init(void);
1157 extern int drm_mem_info(char *buf, char **start, off_t offset,
1158 int request, int *eof, void *data);
1159 extern void *drm_realloc(void *oldpt, size_t oldsize, size_t size, int area);
1161 extern DRM_AGP_MEM *drm_alloc_agp(struct drm_device *dev, int pages, u32 type);
1162 extern int drm_free_agp(DRM_AGP_MEM * handle, int pages);
1163 extern int drm_bind_agp(DRM_AGP_MEM * handle, unsigned int start);
1164 extern DRM_AGP_MEM *drm_agp_bind_pages(struct drm_device *dev,
1165 struct page **pages,
1166 unsigned long num_pages,
1167 uint32_t gtt_offset,
1168 uint32_t type);
1169 extern int drm_unbind_agp(DRM_AGP_MEM * handle);
1171 /* Misc. IOCTL support (drm_ioctl.h) */
1172 extern int drm_irq_by_busid(struct drm_device *dev, void *data,
1173 struct drm_file *file_priv);
1174 extern int drm_getunique(struct drm_device *dev, void *data,
1175 struct drm_file *file_priv);
1176 extern int drm_setunique(struct drm_device *dev, void *data,
1177 struct drm_file *file_priv);
1178 extern int drm_getmap(struct drm_device *dev, void *data,
1179 struct drm_file *file_priv);
1180 extern int drm_getclient(struct drm_device *dev, void *data,
1181 struct drm_file *file_priv);
1182 extern int drm_getstats(struct drm_device *dev, void *data,
1183 struct drm_file *file_priv);
1184 extern int drm_setversion(struct drm_device *dev, void *data,
1185 struct drm_file *file_priv);
1186 extern int drm_noop(struct drm_device *dev, void *data,
1187 struct drm_file *file_priv);
1189 /* Context IOCTL support (drm_context.h) */
1190 extern int drm_resctx(struct drm_device *dev, void *data,
1191 struct drm_file *file_priv);
1192 extern int drm_addctx(struct drm_device *dev, void *data,
1193 struct drm_file *file_priv);
1194 extern int drm_modctx(struct drm_device *dev, void *data,
1195 struct drm_file *file_priv);
1196 extern int drm_getctx(struct drm_device *dev, void *data,
1197 struct drm_file *file_priv);
1198 extern int drm_switchctx(struct drm_device *dev, void *data,
1199 struct drm_file *file_priv);
1200 extern int drm_newctx(struct drm_device *dev, void *data,
1201 struct drm_file *file_priv);
1202 extern int drm_rmctx(struct drm_device *dev, void *data,
1203 struct drm_file *file_priv);
1205 extern int drm_ctxbitmap_init(struct drm_device *dev);
1206 extern void drm_ctxbitmap_cleanup(struct drm_device *dev);
1207 extern void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
1209 extern int drm_setsareactx(struct drm_device *dev, void *data,
1210 struct drm_file *file_priv);
1211 extern int drm_getsareactx(struct drm_device *dev, void *data,
1212 struct drm_file *file_priv);
1214 /* Drawable IOCTL support (drm_drawable.h) */
1215 extern int drm_adddraw(struct drm_device *dev, void *data,
1216 struct drm_file *file_priv);
1217 extern int drm_rmdraw(struct drm_device *dev, void *data,
1218 struct drm_file *file_priv);
1219 extern int drm_update_drawable_info(struct drm_device *dev, void *data,
1220 struct drm_file *file_priv);
1221 extern struct drm_drawable_info *drm_get_drawable_info(struct drm_device *dev,
1222 drm_drawable_t id);
1223 extern void drm_drawable_free_all(struct drm_device *dev);
1225 /* Authentication IOCTL support (drm_auth.h) */
1226 extern int drm_getmagic(struct drm_device *dev, void *data,
1227 struct drm_file *file_priv);
1228 extern int drm_authmagic(struct drm_device *dev, void *data,
1229 struct drm_file *file_priv);
1231 /* Cache management (drm_cache.c) */
1232 void drm_clflush_pages(struct page *pages[], unsigned long num_pages);
1234 /* Locking IOCTL support (drm_lock.h) */
1235 extern int drm_lock(struct drm_device *dev, void *data,
1236 struct drm_file *file_priv);
1237 extern int drm_unlock(struct drm_device *dev, void *data,
1238 struct drm_file *file_priv);
1239 extern int drm_lock_take(struct drm_lock_data *lock_data, unsigned int context);
1240 extern int drm_lock_free(struct drm_lock_data *lock_data, unsigned int context);
1241 extern void drm_idlelock_take(struct drm_lock_data *lock_data);
1242 extern void drm_idlelock_release(struct drm_lock_data *lock_data);
1245 * These are exported to drivers so that they can implement fencing using
1246 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
1249 extern int drm_i_have_hw_lock(struct drm_device *dev, struct drm_file *file_priv);
1251 /* Buffer management support (drm_bufs.h) */
1252 extern int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc * request);
1253 extern int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc * request);
1254 extern int drm_addmap(struct drm_device *dev, resource_size_t offset,
1255 unsigned int size, enum drm_map_type type,
1256 enum drm_map_flags flags, struct drm_local_map **map_ptr);
1257 extern int drm_addmap_ioctl(struct drm_device *dev, void *data,
1258 struct drm_file *file_priv);
1259 extern int drm_rmmap(struct drm_device *dev, struct drm_local_map *map);
1260 extern int drm_rmmap_locked(struct drm_device *dev, struct drm_local_map *map);
1261 extern int drm_rmmap_ioctl(struct drm_device *dev, void *data,
1262 struct drm_file *file_priv);
1263 extern int drm_addbufs(struct drm_device *dev, void *data,
1264 struct drm_file *file_priv);
1265 extern int drm_infobufs(struct drm_device *dev, void *data,
1266 struct drm_file *file_priv);
1267 extern int drm_markbufs(struct drm_device *dev, void *data,
1268 struct drm_file *file_priv);
1269 extern int drm_freebufs(struct drm_device *dev, void *data,
1270 struct drm_file *file_priv);
1271 extern int drm_mapbufs(struct drm_device *dev, void *data,
1272 struct drm_file *file_priv);
1273 extern int drm_order(unsigned long size);
1274 extern resource_size_t drm_get_resource_start(struct drm_device *dev,
1275 unsigned int resource);
1276 extern resource_size_t drm_get_resource_len(struct drm_device *dev,
1277 unsigned int resource);
1279 /* DMA support (drm_dma.h) */
1280 extern int drm_dma_setup(struct drm_device *dev);
1281 extern void drm_dma_takedown(struct drm_device *dev);
1282 extern void drm_free_buffer(struct drm_device *dev, struct drm_buf * buf);
1283 extern void drm_core_reclaim_buffers(struct drm_device *dev,
1284 struct drm_file *filp);
1286 /* IRQ support (drm_irq.h) */
1287 extern int drm_control(struct drm_device *dev, void *data,
1288 struct drm_file *file_priv);
1289 extern irqreturn_t drm_irq_handler(DRM_IRQ_ARGS);
1290 extern int drm_irq_install(struct drm_device *dev);
1291 extern int drm_irq_uninstall(struct drm_device *dev);
1292 extern void drm_driver_irq_preinstall(struct drm_device *dev);
1293 extern void drm_driver_irq_postinstall(struct drm_device *dev);
1294 extern void drm_driver_irq_uninstall(struct drm_device *dev);
1296 extern int drm_vblank_init(struct drm_device *dev, int num_crtcs);
1297 extern int drm_wait_vblank(struct drm_device *dev, void *data,
1298 struct drm_file *filp);
1299 extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq);
1300 extern u32 drm_vblank_count(struct drm_device *dev, int crtc);
1301 extern void drm_handle_vblank(struct drm_device *dev, int crtc);
1302 extern int drm_vblank_get(struct drm_device *dev, int crtc);
1303 extern void drm_vblank_put(struct drm_device *dev, int crtc);
1304 extern void drm_vblank_off(struct drm_device *dev, int crtc);
1305 extern void drm_vblank_cleanup(struct drm_device *dev);
1306 /* Modesetting support */
1307 extern void drm_vblank_pre_modeset(struct drm_device *dev, int crtc);
1308 extern void drm_vblank_post_modeset(struct drm_device *dev, int crtc);
1309 extern int drm_modeset_ctl(struct drm_device *dev, void *data,
1310 struct drm_file *file_priv);
1312 /* AGP/GART support (drm_agpsupport.h) */
1313 extern struct drm_agp_head *drm_agp_init(struct drm_device *dev);
1314 extern int drm_agp_acquire(struct drm_device *dev);
1315 extern int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
1316 struct drm_file *file_priv);
1317 extern int drm_agp_release(struct drm_device *dev);
1318 extern int drm_agp_release_ioctl(struct drm_device *dev, void *data,
1319 struct drm_file *file_priv);
1320 extern int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode);
1321 extern int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
1322 struct drm_file *file_priv);
1323 extern int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info);
1324 extern int drm_agp_info_ioctl(struct drm_device *dev, void *data,
1325 struct drm_file *file_priv);
1326 extern int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request);
1327 extern int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
1328 struct drm_file *file_priv);
1329 extern int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request);
1330 extern int drm_agp_free_ioctl(struct drm_device *dev, void *data,
1331 struct drm_file *file_priv);
1332 extern int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request);
1333 extern int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
1334 struct drm_file *file_priv);
1335 extern int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
1336 extern int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
1337 struct drm_file *file_priv);
1338 extern DRM_AGP_MEM *drm_agp_allocate_memory(struct agp_bridge_data *bridge, size_t pages, u32 type);
1339 extern int drm_agp_free_memory(DRM_AGP_MEM * handle);
1340 extern int drm_agp_bind_memory(DRM_AGP_MEM * handle, off_t start);
1341 extern int drm_agp_unbind_memory(DRM_AGP_MEM * handle);
1342 extern void drm_agp_chipset_flush(struct drm_device *dev);
1344 /* Stub support (drm_stub.h) */
1345 extern int drm_setmaster_ioctl(struct drm_device *dev, void *data,
1346 struct drm_file *file_priv);
1347 extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
1348 struct drm_file *file_priv);
1349 struct drm_master *drm_master_create(struct drm_minor *minor);
1350 extern struct drm_master *drm_master_get(struct drm_master *master);
1351 extern void drm_master_put(struct drm_master **master);
1352 extern int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
1353 struct drm_driver *driver);
1354 extern void drm_put_dev(struct drm_device *dev);
1355 extern int drm_put_minor(struct drm_minor **minor);
1356 extern unsigned int drm_debug;
1358 extern struct class *drm_class;
1359 extern struct proc_dir_entry *drm_proc_root;
1360 extern struct dentry *drm_debugfs_root;
1362 extern struct idr drm_minors_idr;
1364 extern struct drm_local_map *drm_getsarea(struct drm_device *dev);
1366 /* Proc support (drm_proc.h) */
1367 extern int drm_proc_init(struct drm_minor *minor, int minor_id,
1368 struct proc_dir_entry *root);
1369 extern int drm_proc_cleanup(struct drm_minor *minor, struct proc_dir_entry *root);
1371 /* Debugfs support */
1372 #if defined(CONFIG_DEBUG_FS)
1373 extern int drm_debugfs_init(struct drm_minor *minor, int minor_id,
1374 struct dentry *root);
1375 extern int drm_debugfs_create_files(struct drm_info_list *files, int count,
1376 struct dentry *root, struct drm_minor *minor);
1377 extern int drm_debugfs_remove_files(struct drm_info_list *files, int count,
1378 struct drm_minor *minor);
1379 extern int drm_debugfs_cleanup(struct drm_minor *minor);
1380 #endif
1382 /* Info file support */
1383 extern int drm_name_info(struct seq_file *m, void *data);
1384 extern int drm_vm_info(struct seq_file *m, void *data);
1385 extern int drm_queues_info(struct seq_file *m, void *data);
1386 extern int drm_bufs_info(struct seq_file *m, void *data);
1387 extern int drm_vblank_info(struct seq_file *m, void *data);
1388 extern int drm_clients_info(struct seq_file *m, void* data);
1389 extern int drm_gem_name_info(struct seq_file *m, void *data);
1390 extern int drm_gem_object_info(struct seq_file *m, void* data);
1392 #if DRM_DEBUG_CODE
1393 extern int drm_vma_info(struct seq_file *m, void *data);
1394 #endif
1396 /* Scatter Gather Support (drm_scatter.h) */
1397 extern void drm_sg_cleanup(struct drm_sg_mem * entry);
1398 extern int drm_sg_alloc_ioctl(struct drm_device *dev, void *data,
1399 struct drm_file *file_priv);
1400 extern int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request);
1401 extern int drm_sg_free(struct drm_device *dev, void *data,
1402 struct drm_file *file_priv);
1404 /* ATI PCIGART support (ati_pcigart.h) */
1405 extern int drm_ati_pcigart_init(struct drm_device *dev,
1406 struct drm_ati_pcigart_info * gart_info);
1407 extern int drm_ati_pcigart_cleanup(struct drm_device *dev,
1408 struct drm_ati_pcigart_info * gart_info);
1410 extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
1411 size_t align);
1412 extern void __drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
1413 extern void drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
1415 /* sysfs support (drm_sysfs.c) */
1416 struct drm_sysfs_class;
1417 extern struct class *drm_sysfs_create(struct module *owner, char *name);
1418 extern void drm_sysfs_destroy(void);
1419 extern int drm_sysfs_device_add(struct drm_minor *minor);
1420 extern void drm_sysfs_hotplug_event(struct drm_device *dev);
1421 extern void drm_sysfs_device_remove(struct drm_minor *minor);
1422 extern char *drm_get_connector_status_name(enum drm_connector_status status);
1423 extern int drm_sysfs_connector_add(struct drm_connector *connector);
1424 extern void drm_sysfs_connector_remove(struct drm_connector *connector);
1426 /* Graphics Execution Manager library functions (drm_gem.c) */
1427 int drm_gem_init(struct drm_device *dev);
1428 void drm_gem_destroy(struct drm_device *dev);
1429 void drm_gem_object_free(struct kref *kref);
1430 struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev,
1431 size_t size);
1432 void drm_gem_object_handle_free(struct kref *kref);
1433 void drm_gem_vm_open(struct vm_area_struct *vma);
1434 void drm_gem_vm_close(struct vm_area_struct *vma);
1435 int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
1437 static inline void
1438 drm_gem_object_reference(struct drm_gem_object *obj)
1440 kref_get(&obj->refcount);
1443 static inline void
1444 drm_gem_object_unreference(struct drm_gem_object *obj)
1446 if (obj == NULL)
1447 return;
1449 kref_put(&obj->refcount, drm_gem_object_free);
1452 int drm_gem_handle_create(struct drm_file *file_priv,
1453 struct drm_gem_object *obj,
1454 u32 *handlep);
1456 static inline void
1457 drm_gem_object_handle_reference(struct drm_gem_object *obj)
1459 drm_gem_object_reference(obj);
1460 kref_get(&obj->handlecount);
1463 static inline void
1464 drm_gem_object_handle_unreference(struct drm_gem_object *obj)
1466 if (obj == NULL)
1467 return;
1470 * Must bump handle count first as this may be the last
1471 * ref, in which case the object would disappear before we
1472 * checked for a name
1474 kref_put(&obj->handlecount, drm_gem_object_handle_free);
1475 drm_gem_object_unreference(obj);
1478 struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev,
1479 struct drm_file *filp,
1480 u32 handle);
1481 int drm_gem_close_ioctl(struct drm_device *dev, void *data,
1482 struct drm_file *file_priv);
1483 int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
1484 struct drm_file *file_priv);
1485 int drm_gem_open_ioctl(struct drm_device *dev, void *data,
1486 struct drm_file *file_priv);
1487 void drm_gem_open(struct drm_device *dev, struct drm_file *file_private);
1488 void drm_gem_release(struct drm_device *dev, struct drm_file *file_private);
1490 extern void drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev);
1491 extern void drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev);
1492 extern void drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev);
1494 static __inline__ struct drm_local_map *drm_core_findmap(struct drm_device *dev,
1495 unsigned int token)
1497 struct drm_map_list *_entry;
1498 list_for_each_entry(_entry, &dev->maplist, head)
1499 if (_entry->user_token == token)
1500 return _entry->map;
1501 return NULL;
1504 static __inline__ int drm_device_is_agp(struct drm_device *dev)
1506 if (dev->driver->device_is_agp != NULL) {
1507 int err = (*dev->driver->device_is_agp) (dev);
1509 if (err != 2) {
1510 return err;
1514 return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP);
1517 static __inline__ int drm_device_is_pcie(struct drm_device *dev)
1519 return pci_find_capability(dev->pdev, PCI_CAP_ID_EXP);
1522 static __inline__ void drm_core_dropmap(struct drm_local_map *map)
1527 static __inline__ void *drm_calloc_large(size_t nmemb, size_t size)
1529 if (size != 0 && nmemb > ULONG_MAX / size)
1530 return NULL;
1532 if (size * nmemb <= PAGE_SIZE)
1533 return kcalloc(nmemb, size, GFP_KERNEL);
1535 return __vmalloc(size * nmemb,
1536 GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO, PAGE_KERNEL);
1539 /* Modeled after cairo's malloc_ab, it's like calloc but without the zeroing. */
1540 static __inline__ void *drm_malloc_ab(size_t nmemb, size_t size)
1542 if (size != 0 && nmemb > ULONG_MAX / size)
1543 return NULL;
1545 if (size * nmemb <= PAGE_SIZE)
1546 return kmalloc(nmemb * size, GFP_KERNEL);
1548 return __vmalloc(size * nmemb,
1549 GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL);
1552 static __inline void drm_free_large(void *ptr)
1554 if (!is_vmalloc_addr(ptr))
1555 return kfree(ptr);
1557 vfree(ptr);
1559 /*@}*/
1561 #endif /* __KERNEL__ */
1562 #endif