3 * Private header for Direct Rendering Manager
5 * \author Rickard E. (Rik) Faith <faith@valinux.com>
6 * \author Gareth Hughes <gareth@valinux.com>
10 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
11 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
12 * Copyright (c) 2009-2010, Code Aurora Forum.
13 * All rights reserved.
15 * Permission is hereby granted, free of charge, to any person obtaining a
16 * copy of this software and associated documentation files (the "Software"),
17 * to deal in the Software without restriction, including without limitation
18 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
19 * and/or sell copies of the Software, and to permit persons to whom the
20 * Software is furnished to do so, subject to the following conditions:
22 * The above copyright notice and this permission notice (including the next
23 * paragraph) shall be included in all copies or substantial portions of the
26 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
27 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
28 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
29 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
30 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
31 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
32 * OTHER DEALINGS IN THE SOFTWARE.
40 /* add include of current.h so that "current" is defined
41 * before static inline funcs in wait.h. Doing this so we
42 * can build the DRM (part of PI DRI). 4/21/2000 S + B */
43 #include <asm/current.h>
44 #endif /* __alpha__ */
45 #include <linux/module.h>
46 #include <linux/kernel.h>
47 #include <linux/miscdevice.h>
49 #include <linux/proc_fs.h>
50 #include <linux/init.h>
51 #include <linux/file.h>
52 #include <linux/platform_device.h>
53 #include <linux/pci.h>
54 #include <linux/jiffies.h>
55 #include <linux/smp_lock.h> /* For (un)lock_kernel */
56 #include <linux/dma-mapping.h>
58 #include <linux/cdev.h>
59 #include <linux/mutex.h>
60 #include <linux/slab.h>
61 #if defined(__alpha__) || defined(__powerpc__)
62 #include <asm/pgtable.h> /* For pte_wrprotect */
66 #include <asm/uaccess.h>
70 #if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
71 #include <linux/types.h>
72 #include <linux/agp_backend.h>
74 #include <linux/workqueue.h>
75 #include <linux/poll.h>
76 #include <asm/pgalloc.h>
79 #include <linux/idr.h>
81 #define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE)))
82 #define __OS_HAS_MTRR (defined(CONFIG_MTRR))
87 #include "drm_os_linux.h"
88 #include "drm_hashtab.h"
91 #define DRM_UT_CORE 0x01
92 #define DRM_UT_DRIVER 0x02
93 #define DRM_UT_KMS 0x04
95 * Three debug levels are defined.
96 * drm_core, drm_driver, drm_kms
97 * drm_core level can be used in the generic drm code. For example:
98 * drm_ioctl, drm_mm, drm_memory
99 * The macro definiton of DRM_DEBUG is used.
100 * DRM_DEBUG(fmt, args...)
101 * The debug info by using the DRM_DEBUG can be obtained by adding
102 * the boot option of "drm.debug=1".
104 * drm_driver level can be used in the specific drm driver. It is used
105 * to add the debug info related with the drm driver. For example:
106 * i915_drv, i915_dma, i915_gem, radeon_drv,
107 * The macro definition of DRM_DEBUG_DRIVER can be used.
108 * DRM_DEBUG_DRIVER(fmt, args...)
109 * The debug info by using the DRM_DEBUG_DRIVER can be obtained by
110 * adding the boot option of "drm.debug=0x02"
112 * drm_kms level can be used in the KMS code related with specific drm driver.
113 * It is used to add the debug info related with KMS mode. For example:
114 * the connector/crtc ,
115 * The macro definition of DRM_DEBUG_KMS can be used.
116 * DRM_DEBUG_KMS(fmt, args...)
117 * The debug info by using the DRM_DEBUG_KMS can be obtained by
118 * adding the boot option of "drm.debug=0x04"
120 * If we add the boot option of "drm.debug=0x06", we can get the debug info by
121 * using the DRM_DEBUG_KMS and DRM_DEBUG_DRIVER.
122 * If we add the boot option of "drm.debug=0x05", we can get the debug info by
123 * using the DRM_DEBUG_KMS and DRM_DEBUG.
126 extern void drm_ut_debug_printk(unsigned int request_level
,
128 const char *function_name
,
129 const char *format
, ...);
130 /***********************************************************************/
131 /** \name DRM template customization defaults */
134 /* driver capabilities and requirements mask */
135 #define DRIVER_USE_AGP 0x1
136 #define DRIVER_REQUIRE_AGP 0x2
137 #define DRIVER_USE_MTRR 0x4
138 #define DRIVER_PCI_DMA 0x8
139 #define DRIVER_SG 0x10
140 #define DRIVER_HAVE_DMA 0x20
141 #define DRIVER_HAVE_IRQ 0x40
142 #define DRIVER_IRQ_SHARED 0x80
143 #define DRIVER_IRQ_VBL 0x100
144 #define DRIVER_DMA_QUEUE 0x200
145 #define DRIVER_FB_DMA 0x400
146 #define DRIVER_IRQ_VBL2 0x800
147 #define DRIVER_GEM 0x1000
148 #define DRIVER_MODESET 0x2000
149 #define DRIVER_USE_PLATFORM_DEVICE 0x4000
151 /***********************************************************************/
152 /** \name Begin the DRM... */
155 #define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then
156 also include looping detection. */
158 #define DRM_MAGIC_HASH_ORDER 4 /**< Size of key hash table. Must be power of 2. */
159 #define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */
160 #define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */
161 #define DRM_LOOPING_LIMIT 5000000
162 #define DRM_TIME_SLICE (HZ/20) /**< Time slice for GLXContexts */
163 #define DRM_LOCK_SLICE 1 /**< Time slice for lock, in jiffies */
165 #define DRM_FLAG_DEBUG 0x01
167 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
168 #define DRM_MAP_HASH_OFFSET 0x10000000
172 /***********************************************************************/
173 /** \name Macros to make printk easier */
179 * \param fmt printf() like format string.
180 * \param arg arguments
182 #define DRM_ERROR(fmt, arg...) \
183 printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* " fmt , __func__ , ##arg)
186 * Memory error output.
188 * \param area memory area where the error occurred.
189 * \param fmt printf() like format string.
190 * \param arg arguments
192 #define DRM_MEM_ERROR(area, fmt, arg...) \
193 printk(KERN_ERR "[" DRM_NAME ":%s:%s] *ERROR* " fmt , __func__, \
194 drm_mem_stats[area].name , ##arg)
196 #define DRM_INFO(fmt, arg...) printk(KERN_INFO "[" DRM_NAME "] " fmt , ##arg)
201 * \param fmt printf() like format string.
202 * \param arg arguments
205 #define DRM_DEBUG(fmt, args...) \
207 drm_ut_debug_printk(DRM_UT_CORE, DRM_NAME, \
208 __func__, fmt, ##args); \
211 #define DRM_DEBUG_DRIVER(fmt, args...) \
213 drm_ut_debug_printk(DRM_UT_DRIVER, DRM_NAME, \
214 __func__, fmt, ##args); \
216 #define DRM_DEBUG_KMS(fmt, args...) \
218 drm_ut_debug_printk(DRM_UT_KMS, DRM_NAME, \
219 __func__, fmt, ##args); \
221 #define DRM_LOG(fmt, args...) \
223 drm_ut_debug_printk(DRM_UT_CORE, NULL, \
224 NULL, fmt, ##args); \
226 #define DRM_LOG_KMS(fmt, args...) \
228 drm_ut_debug_printk(DRM_UT_KMS, NULL, \
229 NULL, fmt, ##args); \
231 #define DRM_LOG_MODE(fmt, args...) \
233 drm_ut_debug_printk(DRM_UT_MODE, NULL, \
234 NULL, fmt, ##args); \
236 #define DRM_LOG_DRIVER(fmt, args...) \
238 drm_ut_debug_printk(DRM_UT_DRIVER, NULL, \
239 NULL, fmt, ##args); \
242 #define DRM_DEBUG_DRIVER(fmt, args...) do { } while (0)
243 #define DRM_DEBUG_KMS(fmt, args...) do { } while (0)
244 #define DRM_DEBUG(fmt, arg...) do { } while (0)
245 #define DRM_LOG(fmt, arg...) do { } while (0)
246 #define DRM_LOG_KMS(fmt, args...) do { } while (0)
247 #define DRM_LOG_MODE(fmt, arg...) do { } while (0)
248 #define DRM_LOG_DRIVER(fmt, arg...) do { } while (0)
254 /***********************************************************************/
255 /** \name Internal types and structures */
258 #define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x)
260 #define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
261 #define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
263 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
266 * Test that the hardware lock is held by the caller, returning otherwise.
268 * \param dev DRM device.
269 * \param filp file pointer of the caller.
271 #define LOCK_TEST_WITH_RETURN( dev, _file_priv ) \
273 if (!_DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock) || \
274 _file_priv->master->lock.file_priv != _file_priv) { \
275 DRM_ERROR( "%s called without lock held, held %d owner %p %p\n",\
276 __func__, _DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock),\
277 _file_priv->master->lock.file_priv, _file_priv); \
283 * Ioctl function type.
285 * \param inode device inode.
286 * \param file_priv DRM file private pointer.
287 * \param cmd command.
288 * \param arg argument.
290 typedef int drm_ioctl_t(struct drm_device
*dev
, void *data
,
291 struct drm_file
*file_priv
);
293 typedef int drm_ioctl_compat_t(struct file
*filp
, unsigned int cmd
,
296 #define DRM_IOCTL_NR(n) _IOC_NR(n)
297 #define DRM_MAJOR 226
300 #define DRM_MASTER 0x2
301 #define DRM_ROOT_ONLY 0x4
302 #define DRM_CONTROL_ALLOW 0x8
303 #define DRM_UNLOCKED 0x10
305 struct drm_ioctl_desc
{
312 * Creates a driver or general drm_ioctl_desc array entry for the given
313 * ioctl, for use by drm_ioctl().
315 #define DRM_IOCTL_DEF(ioctl, _func, _flags) \
316 [DRM_IOCTL_NR(ioctl)] = {.cmd = ioctl, .func = _func, .flags = _flags}
318 struct drm_magic_entry
{
319 struct list_head head
;
320 struct drm_hash_item hash_item
;
321 struct drm_file
*priv
;
324 struct drm_vma_entry
{
325 struct list_head head
;
326 struct vm_area_struct
*vma
;
334 int idx
; /**< Index into master buflist */
335 int total
; /**< Buffer size */
336 int order
; /**< log-base-2(total) */
337 int used
; /**< Amount of buffer in use (for DMA) */
338 unsigned long offset
; /**< Byte offset (used internally) */
339 void *address
; /**< Address of buffer */
340 unsigned long bus_address
; /**< Bus address of buffer */
341 struct drm_buf
*next
; /**< Kernel-only: used for free list */
342 __volatile__
int waiting
; /**< On kernel DMA queue */
343 __volatile__
int pending
; /**< On hardware DMA queue */
344 wait_queue_head_t dma_wait
; /**< Processes waiting */
345 struct drm_file
*file_priv
; /**< Private of holding file descr */
346 int context
; /**< Kernel queue for this buffer */
347 int while_locked
; /**< Dispatch this buffer while locked */
355 } list
; /**< Which list we're on */
357 int dev_priv_size
; /**< Size of buffer private storage */
358 void *dev_private
; /**< Per-buffer private storage */
361 /** bufs is one longer than it has to be */
362 struct drm_waitlist
{
363 int count
; /**< Number of possible buffers */
364 struct drm_buf
**bufs
; /**< List of pointers to buffers */
365 struct drm_buf
**rp
; /**< Read pointer */
366 struct drm_buf
**wp
; /**< Write pointer */
367 struct drm_buf
**end
; /**< End pointer */
368 spinlock_t read_lock
;
369 spinlock_t write_lock
;
372 struct drm_freelist
{
373 int initialized
; /**< Freelist in use */
374 atomic_t count
; /**< Number of free buffers */
375 struct drm_buf
*next
; /**< End pointer */
377 wait_queue_head_t waiting
; /**< Processes waiting on free bufs */
378 int low_mark
; /**< Low water mark */
379 int high_mark
; /**< High water mark */
380 atomic_t wfh
; /**< If waiting for high mark */
384 typedef struct drm_dma_handle
{
391 * Buffer entry. There is one of this for each buffer size order.
393 struct drm_buf_entry
{
394 int buf_size
; /**< size */
395 int buf_count
; /**< number of buffers */
396 struct drm_buf
*buflist
; /**< buffer list */
399 struct drm_dma_handle
**seglist
;
401 struct drm_freelist freelist
;
404 /* Event queued up for userspace to read */
405 struct drm_pending_event
{
406 struct drm_event
*event
;
407 struct list_head link
;
408 struct drm_file
*file_priv
;
409 pid_t pid
; /* pid of requester, no guarantee it's valid by the time
410 we deliver the event, for tracing only */
411 void (*destroy
)(struct drm_pending_event
*event
);
414 /** File private data */
420 unsigned long ioctl_count
;
421 struct list_head lhead
;
422 struct drm_minor
*minor
;
423 unsigned long lock_count
;
425 /** Mapping of mm object handles to object pointers. */
426 struct idr object_idr
;
427 /** Lock for synchronization of access to object_idr. */
428 spinlock_t table_lock
;
433 int is_master
; /* this file private is a master for a minor */
434 struct drm_master
*master
; /* master this node is currently associated with
435 N.B. not always minor->master */
436 struct list_head fbs
;
438 wait_queue_head_t event_wait
;
439 struct list_head event_list
;
445 atomic_t use_count
; /**< Outstanding uses (+1) */
446 atomic_t finalization
; /**< Finalization in progress */
447 atomic_t block_count
; /**< Count of processes waiting */
448 atomic_t block_read
; /**< Queue blocked for reads */
449 wait_queue_head_t read_queue
; /**< Processes waiting on block_read */
450 atomic_t block_write
; /**< Queue blocked for writes */
451 wait_queue_head_t write_queue
; /**< Processes waiting on block_write */
452 atomic_t total_queued
; /**< Total queued statistic */
453 atomic_t total_flushed
; /**< Total flushes statistic */
454 atomic_t total_locks
; /**< Total locks statistics */
455 enum drm_ctx_flags flags
; /**< Context preserving and 2D-only */
456 struct drm_waitlist waitlist
; /**< Pending buffers */
457 wait_queue_head_t flush_queue
; /**< Processes waiting until flush */
463 struct drm_lock_data
{
464 struct drm_hw_lock
*hw_lock
; /**< Hardware lock */
465 /** Private of lock holder's file (NULL=kernel) */
466 struct drm_file
*file_priv
;
467 wait_queue_head_t lock_queue
; /**< Queue of blocked processes */
468 unsigned long lock_time
; /**< Time of last lock in jiffies */
470 uint32_t kernel_waiters
;
471 uint32_t user_waiters
;
478 struct drm_device_dma
{
480 struct drm_buf_entry bufs
[DRM_MAX_ORDER
+ 1]; /**< buffers, grouped by their size order */
481 int buf_count
; /**< total number of buffers */
482 struct drm_buf
**buflist
; /**< Vector of pointers into drm_device_dma::bufs */
484 int page_count
; /**< number of pages */
485 unsigned long *pagelist
; /**< page list */
486 unsigned long byte_count
;
488 _DRM_DMA_USE_AGP
= 0x01,
489 _DRM_DMA_USE_SG
= 0x02,
490 _DRM_DMA_USE_FB
= 0x04,
491 _DRM_DMA_USE_PCI_RO
= 0x08
497 * AGP memory entry. Stored as a doubly linked list.
500 unsigned long handle
; /**< handle */
502 unsigned long bound
; /**< address */
504 struct list_head head
;
510 * \sa drm_agp_init() and drm_device::agp.
512 struct drm_agp_head
{
513 DRM_AGP_KERN agp_info
; /**< AGP device information */
514 struct list_head memory
;
515 unsigned long mode
; /**< AGP mode */
516 struct agp_bridge_data
*bridge
;
517 int enabled
; /**< whether the AGP bus as been enabled */
518 int acquired
; /**< whether the AGP device has been acquired */
521 int cant_use_aperture
;
522 unsigned long page_mask
;
526 * Scatter-gather memory.
529 unsigned long handle
;
532 struct page
**pagelist
;
538 struct drm_hw_lock
*lock
;
543 * Kernel side of a mapping
545 struct drm_local_map
{
546 resource_size_t offset
; /**< Requested physical address (0 for SAREA)*/
547 unsigned long size
; /**< Requested physical size (bytes) */
548 enum drm_map_type type
; /**< Type of memory to map */
549 enum drm_map_flags flags
; /**< Flags */
550 void *handle
; /**< User-space: "Handle" to pass to mmap() */
551 /**< Kernel-space: kernel-virtual address */
552 int mtrr
; /**< MTRR slot used */
555 typedef struct drm_local_map drm_local_map_t
;
560 struct drm_map_list
{
561 struct list_head head
; /**< list head */
562 struct drm_hash_item hash
;
563 struct drm_local_map
*map
; /**< mapping */
565 struct drm_master
*master
;
566 struct drm_mm_node
*file_offset_node
; /**< fake offset */
570 * Context handle list
572 struct drm_ctx_list
{
573 struct list_head head
; /**< list head */
574 drm_context_t handle
; /**< context handle */
575 struct drm_file
*tag
; /**< associated fd private data */
578 /* location of GART table */
579 #define DRM_ATI_GART_MAIN 1
580 #define DRM_ATI_GART_FB 2
582 #define DRM_ATI_GART_PCI 1
583 #define DRM_ATI_GART_PCIE 2
584 #define DRM_ATI_GART_IGP 3
586 struct drm_ati_pcigart_info
{
587 int gart_table_location
;
591 dma_addr_t table_mask
;
592 struct drm_dma_handle
*table_handle
;
593 struct drm_local_map mapping
;
598 * GEM specific mm private for tracking GEM objects
601 struct drm_mm offset_manager
; /**< Offset mgmt for buffer objects */
602 struct drm_open_hash offset_hash
; /**< User token hash table for maps */
606 * This structure defines the drm_mm memory object, which will be used by the
607 * DRM for its buffer objects.
609 struct drm_gem_object
{
610 /** Reference count of this object */
611 struct kref refcount
;
613 /** Handle count of this object. Each handle also holds a reference */
614 struct kref handlecount
;
616 /** Related drm device */
617 struct drm_device
*dev
;
619 /** File representing the shmem storage */
622 /* Mapping info for this object */
623 struct drm_map_list map_list
;
626 * Size of the object, in bytes. Immutable over the object's
632 * Global name for this object, starts at 1. 0 means unnamed.
633 * Access is covered by the object_name_lock in the related drm_device
638 * Memory domains. These monitor which caches contain read/write data
639 * related to the object. When transitioning from one set of domains
640 * to another, the driver is called to ensure that caches are suitably
641 * flushed and invalidated
643 uint32_t read_domains
;
644 uint32_t write_domain
;
647 * While validating an exec operation, the
648 * new read/write domain values are computed here.
649 * They will be transferred to the above values
650 * at the point that any cache flushing occurs
652 uint32_t pending_read_domains
;
653 uint32_t pending_write_domain
;
655 void *driver_private
;
658 #include "drm_crtc.h"
660 /* per-master structure */
663 struct kref refcount
; /* refcount for this master */
665 struct list_head head
; /**< each minor contains a list of masters */
666 struct drm_minor
*minor
; /**< link back to minor we are a master for */
668 char *unique
; /**< Unique identifier: e.g., busid */
669 int unique_len
; /**< Length of unique field */
670 int unique_size
; /**< amount allocated */
672 int blocked
; /**< Blocked due to VC switch? */
674 /** \name Authentication */
676 struct drm_open_hash magiclist
;
677 struct list_head magicfree
;
680 struct drm_lock_data lock
; /**< Information on hardware lock */
682 void *driver_priv
; /**< Private structure for driver to use */
686 * DRM driver structure. This structure represent the common code for
687 * a family of cards. There will one drm_device for each card present
691 int (*load
) (struct drm_device
*, unsigned long flags
);
692 int (*firstopen
) (struct drm_device
*);
693 int (*open
) (struct drm_device
*, struct drm_file
*);
694 void (*preclose
) (struct drm_device
*, struct drm_file
*file_priv
);
695 void (*postclose
) (struct drm_device
*, struct drm_file
*);
696 void (*lastclose
) (struct drm_device
*);
697 int (*unload
) (struct drm_device
*);
698 int (*suspend
) (struct drm_device
*, pm_message_t state
);
699 int (*resume
) (struct drm_device
*);
700 int (*dma_ioctl
) (struct drm_device
*dev
, void *data
, struct drm_file
*file_priv
);
701 void (*dma_ready
) (struct drm_device
*);
702 int (*dma_quiescent
) (struct drm_device
*);
703 int (*context_ctor
) (struct drm_device
*dev
, int context
);
704 int (*context_dtor
) (struct drm_device
*dev
, int context
);
705 int (*kernel_context_switch
) (struct drm_device
*dev
, int old
,
707 void (*kernel_context_switch_unlock
) (struct drm_device
*dev
);
710 * get_vblank_counter - get raw hardware vblank counter
712 * @crtc: counter to fetch
714 * Driver callback for fetching a raw hardware vblank counter
715 * for @crtc. If a device doesn't have a hardware counter, the
716 * driver can simply return the value of drm_vblank_count and
717 * make the enable_vblank() and disable_vblank() hooks into no-ops,
718 * leaving interrupts enabled at all times.
720 * Wraparound handling and loss of events due to modesetting is dealt
721 * with in the DRM core code.
724 * Raw vblank counter value.
726 u32 (*get_vblank_counter
) (struct drm_device
*dev
, int crtc
);
729 * enable_vblank - enable vblank interrupt events
731 * @crtc: which irq to enable
733 * Enable vblank interrupts for @crtc. If the device doesn't have
734 * a hardware vblank counter, this routine should be a no-op, since
735 * interrupts will have to stay on to keep the count accurate.
738 * Zero on success, appropriate errno if the given @crtc's vblank
739 * interrupt cannot be enabled.
741 int (*enable_vblank
) (struct drm_device
*dev
, int crtc
);
744 * disable_vblank - disable vblank interrupt events
746 * @crtc: which irq to enable
748 * Disable vblank interrupts for @crtc. If the device doesn't have
749 * a hardware vblank counter, this routine should be a no-op, since
750 * interrupts will have to stay on to keep the count accurate.
752 void (*disable_vblank
) (struct drm_device
*dev
, int crtc
);
755 * Called by \c drm_device_is_agp. Typically used to determine if a
756 * card is really attached to AGP or not.
758 * \param dev DRM device handle
761 * One of three values is returned depending on whether or not the
762 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
763 * (return of 1), or may or may not be AGP (return of 2).
765 int (*device_is_agp
) (struct drm_device
*dev
);
767 /* these have to be filled in */
769 irqreturn_t(*irq_handler
) (DRM_IRQ_ARGS
);
770 void (*irq_preinstall
) (struct drm_device
*dev
);
771 int (*irq_postinstall
) (struct drm_device
*dev
);
772 void (*irq_uninstall
) (struct drm_device
*dev
);
773 void (*reclaim_buffers
) (struct drm_device
*dev
,
774 struct drm_file
* file_priv
);
775 void (*reclaim_buffers_locked
) (struct drm_device
*dev
,
776 struct drm_file
*file_priv
);
777 void (*reclaim_buffers_idlelocked
) (struct drm_device
*dev
,
778 struct drm_file
*file_priv
);
779 resource_size_t (*get_map_ofs
) (struct drm_local_map
* map
);
780 resource_size_t (*get_reg_ofs
) (struct drm_device
*dev
);
781 void (*set_version
) (struct drm_device
*dev
,
782 struct drm_set_version
*sv
);
784 /* Master routines */
785 int (*master_create
)(struct drm_device
*dev
, struct drm_master
*master
);
786 void (*master_destroy
)(struct drm_device
*dev
, struct drm_master
*master
);
788 * master_set is called whenever the minor master is set.
789 * master_drop is called whenever the minor master is dropped.
792 int (*master_set
)(struct drm_device
*dev
, struct drm_file
*file_priv
,
794 void (*master_drop
)(struct drm_device
*dev
, struct drm_file
*file_priv
,
797 int (*proc_init
)(struct drm_minor
*minor
);
798 void (*proc_cleanup
)(struct drm_minor
*minor
);
799 int (*debugfs_init
)(struct drm_minor
*minor
);
800 void (*debugfs_cleanup
)(struct drm_minor
*minor
);
803 * Driver-specific constructor for drm_gem_objects, to set up
804 * obj->driver_private.
806 * Returns 0 on success.
808 int (*gem_init_object
) (struct drm_gem_object
*obj
);
809 void (*gem_free_object
) (struct drm_gem_object
*obj
);
810 void (*gem_free_object_unlocked
) (struct drm_gem_object
*obj
);
812 /* vga arb irq handler */
813 void (*vgaarb_irq
)(struct drm_device
*dev
, bool state
);
815 /* Driver private ops for this object */
816 struct vm_operations_struct
*gem_vm_ops
;
827 struct drm_ioctl_desc
*ioctls
;
829 struct file_operations fops
;
830 struct pci_driver pci_driver
;
831 struct platform_device
*platform_device
;
832 /* List of devices hanging off this driver */
833 struct list_head device_list
;
836 #define DRM_MINOR_UNASSIGNED 0
837 #define DRM_MINOR_LEGACY 1
838 #define DRM_MINOR_CONTROL 2
839 #define DRM_MINOR_RENDER 3
843 * debugfs node list. This structure represents a debugfs file to
844 * be created by the drm core
846 struct drm_debugfs_list
{
847 const char *name
; /** file name */
848 int (*show
)(struct seq_file
*, void*); /** show callback */
849 u32 driver_features
; /**< Required driver features for this entry */
853 * debugfs node structure. This structure represents a debugfs file.
855 struct drm_debugfs_node
{
856 struct list_head list
;
857 struct drm_minor
*minor
;
858 struct drm_debugfs_list
*debugfs_ent
;
863 * Info file list entry. This structure represents a debugfs or proc file to
864 * be created by the drm core
866 struct drm_info_list
{
867 const char *name
; /** file name */
868 int (*show
)(struct seq_file
*, void*); /** show callback */
869 u32 driver_features
; /**< Required driver features for this entry */
874 * debugfs node structure. This structure represents a debugfs file.
876 struct drm_info_node
{
877 struct list_head list
;
878 struct drm_minor
*minor
;
879 struct drm_info_list
*info_ent
;
884 * DRM minor structure. This structure represents a drm minor number.
887 int index
; /**< Minor device number */
888 int type
; /**< Control or render */
889 dev_t device
; /**< Device number for mknod */
890 struct device kdev
; /**< Linux device */
891 struct drm_device
*dev
;
893 struct proc_dir_entry
*proc_root
; /**< proc directory entry */
894 struct drm_info_node proc_nodes
;
895 struct dentry
*debugfs_root
;
896 struct drm_info_node debugfs_nodes
;
898 struct drm_master
*master
; /* currently active master for this node */
899 struct list_head master_list
;
900 struct drm_mode_group mode_group
;
903 struct drm_pending_vblank_event
{
904 struct drm_pending_event base
;
906 struct drm_event_vblank event
;
910 * DRM device structure. This structure represent a complete card that
911 * may contain multiple heads.
914 struct list_head driver_item
; /**< list of devices per driver */
915 char *devname
; /**< For /proc/interrupts */
916 int if_version
; /**< Highest interface version set */
920 spinlock_t count_lock
; /**< For inuse, drm_device::open_count, drm_device::buf_use */
921 struct mutex struct_mutex
; /**< For others */
924 /** \name Usage Counters */
926 int open_count
; /**< Outstanding files open */
927 atomic_t ioctl_count
; /**< Outstanding IOCTLs pending */
928 atomic_t vma_count
; /**< Outstanding vma areas open */
929 int buf_use
; /**< Buffers in use -- cannot alloc */
930 atomic_t buf_alloc
; /**< Buffer allocation in progress */
933 /** \name Performance counters */
935 unsigned long counters
;
936 enum drm_stat_type types
[15];
940 struct list_head filelist
;
942 /** \name Memory management */
944 struct list_head maplist
; /**< Linked list of regions */
945 int map_count
; /**< Number of mappable regions */
946 struct drm_open_hash map_hash
; /**< User token hash table for maps */
948 /** \name Context handle management */
950 struct list_head ctxlist
; /**< Linked list of context handles */
951 int ctx_count
; /**< Number of context handles */
952 struct mutex ctxlist_mutex
; /**< For ctxlist */
956 struct list_head vmalist
; /**< List of vmas (for debugging) */
960 /** \name DMA queues (contexts) */
962 int queue_count
; /**< Number of active DMA queues */
963 int queue_reserved
; /**< Number of reserved DMA queues */
964 int queue_slots
; /**< Actual length of queuelist */
965 struct drm_queue
**queuelist
; /**< Vector of pointers to DMA queues */
966 struct drm_device_dma
*dma
; /**< Optional pointer for DMA support */
969 /** \name Context support */
971 int irq_enabled
; /**< True if irq handler is enabled */
972 __volatile__
long context_flag
; /**< Context swapping flag */
973 __volatile__
long interrupt_flag
; /**< Interruption handler flag */
974 __volatile__
long dma_flag
; /**< DMA dispatch flag */
975 struct timer_list timer
; /**< Timer for delaying ctx switch */
976 wait_queue_head_t context_wait
; /**< Processes waiting on ctx switch */
977 int last_checked
; /**< Last context checked for DMA */
978 int last_context
; /**< Last current context */
979 unsigned long last_switch
; /**< jiffies at last context switch */
982 struct work_struct work
;
983 /** \name VBLANK IRQ support */
987 * At load time, disabling the vblank interrupt won't be allowed since
988 * old clients may not call the modeset ioctl and therefore misbehave.
989 * Once the modeset ioctl *has* been called though, we can safely
990 * disable them when unused.
992 int vblank_disable_allowed
;
994 wait_queue_head_t
*vbl_queue
; /**< VBLANK wait queue */
995 atomic_t
*_vblank_count
; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */
997 atomic_t
*vblank_refcount
; /* number of users of vblank interruptsper crtc */
998 u32
*last_vblank
; /* protected by dev->vbl_lock, used */
999 /* for wraparound handling */
1000 int *vblank_enabled
; /* so we don't call enable more than
1002 int *vblank_inmodeset
; /* Display driver is setting mode */
1003 u32
*last_vblank_wait
; /* Last vblank seqno waited per CRTC */
1004 struct timer_list vblank_disable_timer
;
1006 u32 max_vblank_count
; /**< size of vblank counter register */
1011 struct list_head vblank_event_list
;
1012 spinlock_t event_lock
;
1018 struct fasync_struct
*buf_async
;/**< Processes waiting for SIGIO */
1019 wait_queue_head_t buf_readers
; /**< Processes waiting to read */
1020 wait_queue_head_t buf_writers
; /**< Processes waiting to ctx switch */
1022 struct drm_agp_head
*agp
; /**< AGP data */
1024 struct device
*dev
; /**< Device structure */
1025 struct pci_dev
*pdev
; /**< PCI device structure */
1026 int pci_vendor
; /**< PCI vendor id */
1027 int pci_device
; /**< PCI device id */
1029 struct pci_controller
*hose
;
1032 struct platform_device
*platformdev
; /**< Platform device struture */
1034 struct drm_sg_mem
*sg
; /**< Scatter gather memory */
1035 int num_crtcs
; /**< Number of CRTCs on this device */
1036 void *dev_private
; /**< device private data */
1038 struct address_space
*dev_mapping
;
1039 struct drm_sigdata sigdata
; /**< For block_all_signals */
1042 struct drm_driver
*driver
;
1043 struct drm_local_map
*agp_buffer_map
;
1044 unsigned int agp_buffer_token
;
1045 struct drm_minor
*control
; /**< Control node for card */
1046 struct drm_minor
*primary
; /**< render type primary screen head */
1048 /** \name Drawable information */
1050 spinlock_t drw_lock
;
1054 struct drm_mode_config mode_config
; /**< Current mode config */
1056 /** \name GEM information */
1058 spinlock_t object_name_lock
;
1059 struct idr object_name_idr
;
1060 atomic_t object_count
;
1061 atomic_t object_memory
;
1063 atomic_t pin_memory
;
1065 atomic_t gtt_memory
;
1067 uint32_t invalidate_domains
; /* domains pending invalidation */
1068 uint32_t flush_domains
; /* domains pending flush */
1073 static __inline__
int drm_core_check_feature(struct drm_device
*dev
,
1076 return ((dev
->driver
->driver_features
& feature
) ? 1 : 0);
1080 static inline int drm_dev_to_irq(struct drm_device
*dev
)
1082 if (drm_core_check_feature(dev
, DRIVER_USE_PLATFORM_DEVICE
))
1083 return platform_get_irq(dev
->platformdev
, 0);
1085 return dev
->pdev
->irq
;
1089 #define drm_get_pci_domain(dev) dev->hose->index
1091 #define drm_get_pci_domain(dev) 0
1095 static inline int drm_core_has_AGP(struct drm_device
*dev
)
1097 return drm_core_check_feature(dev
, DRIVER_USE_AGP
);
1100 #define drm_core_has_AGP(dev) (0)
1104 static inline int drm_core_has_MTRR(struct drm_device
*dev
)
1106 return drm_core_check_feature(dev
, DRIVER_USE_MTRR
);
1109 #define DRM_MTRR_WC MTRR_TYPE_WRCOMB
1111 static inline int drm_mtrr_add(unsigned long offset
, unsigned long size
,
1114 return mtrr_add(offset
, size
, flags
, 1);
1117 static inline int drm_mtrr_del(int handle
, unsigned long offset
,
1118 unsigned long size
, unsigned int flags
)
1120 return mtrr_del(handle
, offset
, size
);
1124 #define drm_core_has_MTRR(dev) (0)
1126 #define DRM_MTRR_WC 0
1128 static inline int drm_mtrr_add(unsigned long offset
, unsigned long size
,
1134 static inline int drm_mtrr_del(int handle
, unsigned long offset
,
1135 unsigned long size
, unsigned int flags
)
1141 /******************************************************************/
1142 /** \name Internal function definitions */
1145 /* Driver support (drm_drv.h) */
1146 extern int drm_init(struct drm_driver
*driver
);
1147 extern void drm_exit(struct drm_driver
*driver
);
1148 extern long drm_ioctl(struct file
*filp
,
1149 unsigned int cmd
, unsigned long arg
);
1150 extern long drm_compat_ioctl(struct file
*filp
,
1151 unsigned int cmd
, unsigned long arg
);
1152 extern int drm_lastclose(struct drm_device
*dev
);
1154 /* Device support (drm_fops.h) */
1155 extern int drm_open(struct inode
*inode
, struct file
*filp
);
1156 extern int drm_stub_open(struct inode
*inode
, struct file
*filp
);
1157 extern int drm_fasync(int fd
, struct file
*filp
, int on
);
1158 extern ssize_t
drm_read(struct file
*filp
, char __user
*buffer
,
1159 size_t count
, loff_t
*offset
);
1160 extern int drm_release(struct inode
*inode
, struct file
*filp
);
1162 /* Mapping support (drm_vm.h) */
1163 extern int drm_mmap(struct file
*filp
, struct vm_area_struct
*vma
);
1164 extern int drm_mmap_locked(struct file
*filp
, struct vm_area_struct
*vma
);
1165 extern void drm_vm_open_locked(struct vm_area_struct
*vma
);
1166 extern resource_size_t
drm_core_get_map_ofs(struct drm_local_map
* map
);
1167 extern resource_size_t
drm_core_get_reg_ofs(struct drm_device
*dev
);
1168 extern unsigned int drm_poll(struct file
*filp
, struct poll_table_struct
*wait
);
1170 /* Memory management support (drm_memory.h) */
1171 #include "drm_memory.h"
1172 extern void drm_mem_init(void);
1173 extern int drm_mem_info(char *buf
, char **start
, off_t offset
,
1174 int request
, int *eof
, void *data
);
1175 extern void *drm_realloc(void *oldpt
, size_t oldsize
, size_t size
, int area
);
1177 extern DRM_AGP_MEM
*drm_alloc_agp(struct drm_device
*dev
, int pages
, u32 type
);
1178 extern int drm_free_agp(DRM_AGP_MEM
* handle
, int pages
);
1179 extern int drm_bind_agp(DRM_AGP_MEM
* handle
, unsigned int start
);
1180 extern DRM_AGP_MEM
*drm_agp_bind_pages(struct drm_device
*dev
,
1181 struct page
**pages
,
1182 unsigned long num_pages
,
1183 uint32_t gtt_offset
,
1185 extern int drm_unbind_agp(DRM_AGP_MEM
* handle
);
1187 /* Misc. IOCTL support (drm_ioctl.h) */
1188 extern int drm_irq_by_busid(struct drm_device
*dev
, void *data
,
1189 struct drm_file
*file_priv
);
1190 extern int drm_getunique(struct drm_device
*dev
, void *data
,
1191 struct drm_file
*file_priv
);
1192 extern int drm_setunique(struct drm_device
*dev
, void *data
,
1193 struct drm_file
*file_priv
);
1194 extern int drm_getmap(struct drm_device
*dev
, void *data
,
1195 struct drm_file
*file_priv
);
1196 extern int drm_getclient(struct drm_device
*dev
, void *data
,
1197 struct drm_file
*file_priv
);
1198 extern int drm_getstats(struct drm_device
*dev
, void *data
,
1199 struct drm_file
*file_priv
);
1200 extern int drm_setversion(struct drm_device
*dev
, void *data
,
1201 struct drm_file
*file_priv
);
1202 extern int drm_noop(struct drm_device
*dev
, void *data
,
1203 struct drm_file
*file_priv
);
1205 /* Context IOCTL support (drm_context.h) */
1206 extern int drm_resctx(struct drm_device
*dev
, void *data
,
1207 struct drm_file
*file_priv
);
1208 extern int drm_addctx(struct drm_device
*dev
, void *data
,
1209 struct drm_file
*file_priv
);
1210 extern int drm_modctx(struct drm_device
*dev
, void *data
,
1211 struct drm_file
*file_priv
);
1212 extern int drm_getctx(struct drm_device
*dev
, void *data
,
1213 struct drm_file
*file_priv
);
1214 extern int drm_switchctx(struct drm_device
*dev
, void *data
,
1215 struct drm_file
*file_priv
);
1216 extern int drm_newctx(struct drm_device
*dev
, void *data
,
1217 struct drm_file
*file_priv
);
1218 extern int drm_rmctx(struct drm_device
*dev
, void *data
,
1219 struct drm_file
*file_priv
);
1221 extern int drm_ctxbitmap_init(struct drm_device
*dev
);
1222 extern void drm_ctxbitmap_cleanup(struct drm_device
*dev
);
1223 extern void drm_ctxbitmap_free(struct drm_device
*dev
, int ctx_handle
);
1225 extern int drm_setsareactx(struct drm_device
*dev
, void *data
,
1226 struct drm_file
*file_priv
);
1227 extern int drm_getsareactx(struct drm_device
*dev
, void *data
,
1228 struct drm_file
*file_priv
);
1230 /* Drawable IOCTL support (drm_drawable.h) */
1231 extern int drm_adddraw(struct drm_device
*dev
, void *data
,
1232 struct drm_file
*file_priv
);
1233 extern int drm_rmdraw(struct drm_device
*dev
, void *data
,
1234 struct drm_file
*file_priv
);
1235 extern int drm_update_drawable_info(struct drm_device
*dev
, void *data
,
1236 struct drm_file
*file_priv
);
1237 extern struct drm_drawable_info
*drm_get_drawable_info(struct drm_device
*dev
,
1239 extern void drm_drawable_free_all(struct drm_device
*dev
);
1241 /* Authentication IOCTL support (drm_auth.h) */
1242 extern int drm_getmagic(struct drm_device
*dev
, void *data
,
1243 struct drm_file
*file_priv
);
1244 extern int drm_authmagic(struct drm_device
*dev
, void *data
,
1245 struct drm_file
*file_priv
);
1247 /* Cache management (drm_cache.c) */
1248 void drm_clflush_pages(struct page
*pages
[], unsigned long num_pages
);
1250 /* Locking IOCTL support (drm_lock.h) */
1251 extern int drm_lock(struct drm_device
*dev
, void *data
,
1252 struct drm_file
*file_priv
);
1253 extern int drm_unlock(struct drm_device
*dev
, void *data
,
1254 struct drm_file
*file_priv
);
1255 extern int drm_lock_take(struct drm_lock_data
*lock_data
, unsigned int context
);
1256 extern int drm_lock_free(struct drm_lock_data
*lock_data
, unsigned int context
);
1257 extern void drm_idlelock_take(struct drm_lock_data
*lock_data
);
1258 extern void drm_idlelock_release(struct drm_lock_data
*lock_data
);
1261 * These are exported to drivers so that they can implement fencing using
1262 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
1265 extern int drm_i_have_hw_lock(struct drm_device
*dev
, struct drm_file
*file_priv
);
1267 /* Buffer management support (drm_bufs.h) */
1268 extern int drm_addbufs_agp(struct drm_device
*dev
, struct drm_buf_desc
* request
);
1269 extern int drm_addbufs_pci(struct drm_device
*dev
, struct drm_buf_desc
* request
);
1270 extern int drm_addmap(struct drm_device
*dev
, resource_size_t offset
,
1271 unsigned int size
, enum drm_map_type type
,
1272 enum drm_map_flags flags
, struct drm_local_map
**map_ptr
);
1273 extern int drm_addmap_ioctl(struct drm_device
*dev
, void *data
,
1274 struct drm_file
*file_priv
);
1275 extern int drm_rmmap(struct drm_device
*dev
, struct drm_local_map
*map
);
1276 extern int drm_rmmap_locked(struct drm_device
*dev
, struct drm_local_map
*map
);
1277 extern int drm_rmmap_ioctl(struct drm_device
*dev
, void *data
,
1278 struct drm_file
*file_priv
);
1279 extern int drm_addbufs(struct drm_device
*dev
, void *data
,
1280 struct drm_file
*file_priv
);
1281 extern int drm_infobufs(struct drm_device
*dev
, void *data
,
1282 struct drm_file
*file_priv
);
1283 extern int drm_markbufs(struct drm_device
*dev
, void *data
,
1284 struct drm_file
*file_priv
);
1285 extern int drm_freebufs(struct drm_device
*dev
, void *data
,
1286 struct drm_file
*file_priv
);
1287 extern int drm_mapbufs(struct drm_device
*dev
, void *data
,
1288 struct drm_file
*file_priv
);
1289 extern int drm_order(unsigned long size
);
1291 /* DMA support (drm_dma.h) */
1292 extern int drm_dma_setup(struct drm_device
*dev
);
1293 extern void drm_dma_takedown(struct drm_device
*dev
);
1294 extern void drm_free_buffer(struct drm_device
*dev
, struct drm_buf
* buf
);
1295 extern void drm_core_reclaim_buffers(struct drm_device
*dev
,
1296 struct drm_file
*filp
);
1298 /* IRQ support (drm_irq.h) */
1299 extern int drm_control(struct drm_device
*dev
, void *data
,
1300 struct drm_file
*file_priv
);
1301 extern irqreturn_t
drm_irq_handler(DRM_IRQ_ARGS
);
1302 extern int drm_irq_install(struct drm_device
*dev
);
1303 extern int drm_irq_uninstall(struct drm_device
*dev
);
1304 extern void drm_driver_irq_preinstall(struct drm_device
*dev
);
1305 extern void drm_driver_irq_postinstall(struct drm_device
*dev
);
1306 extern void drm_driver_irq_uninstall(struct drm_device
*dev
);
1308 extern int drm_vblank_init(struct drm_device
*dev
, int num_crtcs
);
1309 extern int drm_wait_vblank(struct drm_device
*dev
, void *data
,
1310 struct drm_file
*filp
);
1311 extern int drm_vblank_wait(struct drm_device
*dev
, unsigned int *vbl_seq
);
1312 extern u32
drm_vblank_count(struct drm_device
*dev
, int crtc
);
1313 extern void drm_handle_vblank(struct drm_device
*dev
, int crtc
);
1314 extern int drm_vblank_get(struct drm_device
*dev
, int crtc
);
1315 extern void drm_vblank_put(struct drm_device
*dev
, int crtc
);
1316 extern void drm_vblank_off(struct drm_device
*dev
, int crtc
);
1317 extern void drm_vblank_cleanup(struct drm_device
*dev
);
1318 /* Modesetting support */
1319 extern void drm_vblank_pre_modeset(struct drm_device
*dev
, int crtc
);
1320 extern void drm_vblank_post_modeset(struct drm_device
*dev
, int crtc
);
1321 extern int drm_modeset_ctl(struct drm_device
*dev
, void *data
,
1322 struct drm_file
*file_priv
);
1324 /* AGP/GART support (drm_agpsupport.h) */
1325 extern struct drm_agp_head
*drm_agp_init(struct drm_device
*dev
);
1326 extern int drm_agp_acquire(struct drm_device
*dev
);
1327 extern int drm_agp_acquire_ioctl(struct drm_device
*dev
, void *data
,
1328 struct drm_file
*file_priv
);
1329 extern int drm_agp_release(struct drm_device
*dev
);
1330 extern int drm_agp_release_ioctl(struct drm_device
*dev
, void *data
,
1331 struct drm_file
*file_priv
);
1332 extern int drm_agp_enable(struct drm_device
*dev
, struct drm_agp_mode mode
);
1333 extern int drm_agp_enable_ioctl(struct drm_device
*dev
, void *data
,
1334 struct drm_file
*file_priv
);
1335 extern int drm_agp_info(struct drm_device
*dev
, struct drm_agp_info
*info
);
1336 extern int drm_agp_info_ioctl(struct drm_device
*dev
, void *data
,
1337 struct drm_file
*file_priv
);
1338 extern int drm_agp_alloc(struct drm_device
*dev
, struct drm_agp_buffer
*request
);
1339 extern int drm_agp_alloc_ioctl(struct drm_device
*dev
, void *data
,
1340 struct drm_file
*file_priv
);
1341 extern int drm_agp_free(struct drm_device
*dev
, struct drm_agp_buffer
*request
);
1342 extern int drm_agp_free_ioctl(struct drm_device
*dev
, void *data
,
1343 struct drm_file
*file_priv
);
1344 extern int drm_agp_unbind(struct drm_device
*dev
, struct drm_agp_binding
*request
);
1345 extern int drm_agp_unbind_ioctl(struct drm_device
*dev
, void *data
,
1346 struct drm_file
*file_priv
);
1347 extern int drm_agp_bind(struct drm_device
*dev
, struct drm_agp_binding
*request
);
1348 extern int drm_agp_bind_ioctl(struct drm_device
*dev
, void *data
,
1349 struct drm_file
*file_priv
);
1350 extern DRM_AGP_MEM
*drm_agp_allocate_memory(struct agp_bridge_data
*bridge
, size_t pages
, u32 type
);
1351 extern int drm_agp_free_memory(DRM_AGP_MEM
* handle
);
1352 extern int drm_agp_bind_memory(DRM_AGP_MEM
* handle
, off_t start
);
1353 extern int drm_agp_unbind_memory(DRM_AGP_MEM
* handle
);
1354 extern void drm_agp_chipset_flush(struct drm_device
*dev
);
1356 /* Stub support (drm_stub.h) */
1357 extern int drm_setmaster_ioctl(struct drm_device
*dev
, void *data
,
1358 struct drm_file
*file_priv
);
1359 extern int drm_dropmaster_ioctl(struct drm_device
*dev
, void *data
,
1360 struct drm_file
*file_priv
);
1361 struct drm_master
*drm_master_create(struct drm_minor
*minor
);
1362 extern struct drm_master
*drm_master_get(struct drm_master
*master
);
1363 extern void drm_master_put(struct drm_master
**master
);
1364 extern int drm_get_pci_dev(struct pci_dev
*pdev
,
1365 const struct pci_device_id
*ent
,
1366 struct drm_driver
*driver
);
1367 extern int drm_get_platform_dev(struct platform_device
*pdev
,
1368 struct drm_driver
*driver
);
1369 extern void drm_put_dev(struct drm_device
*dev
);
1370 extern int drm_put_minor(struct drm_minor
**minor
);
1371 extern unsigned int drm_debug
;
1373 extern struct class *drm_class
;
1374 extern struct proc_dir_entry
*drm_proc_root
;
1375 extern struct dentry
*drm_debugfs_root
;
1377 extern struct idr drm_minors_idr
;
1379 extern struct drm_local_map
*drm_getsarea(struct drm_device
*dev
);
1381 /* Proc support (drm_proc.h) */
1382 extern int drm_proc_init(struct drm_minor
*minor
, int minor_id
,
1383 struct proc_dir_entry
*root
);
1384 extern int drm_proc_cleanup(struct drm_minor
*minor
, struct proc_dir_entry
*root
);
1386 /* Debugfs support */
1387 #if defined(CONFIG_DEBUG_FS)
1388 extern int drm_debugfs_init(struct drm_minor
*minor
, int minor_id
,
1389 struct dentry
*root
);
1390 extern int drm_debugfs_create_files(struct drm_info_list
*files
, int count
,
1391 struct dentry
*root
, struct drm_minor
*minor
);
1392 extern int drm_debugfs_remove_files(struct drm_info_list
*files
, int count
,
1393 struct drm_minor
*minor
);
1394 extern int drm_debugfs_cleanup(struct drm_minor
*minor
);
1397 /* Info file support */
1398 extern int drm_name_info(struct seq_file
*m
, void *data
);
1399 extern int drm_vm_info(struct seq_file
*m
, void *data
);
1400 extern int drm_queues_info(struct seq_file
*m
, void *data
);
1401 extern int drm_bufs_info(struct seq_file
*m
, void *data
);
1402 extern int drm_vblank_info(struct seq_file
*m
, void *data
);
1403 extern int drm_clients_info(struct seq_file
*m
, void* data
);
1404 extern int drm_gem_name_info(struct seq_file
*m
, void *data
);
1405 extern int drm_gem_object_info(struct seq_file
*m
, void* data
);
1408 extern int drm_vma_info(struct seq_file
*m
, void *data
);
1411 /* Scatter Gather Support (drm_scatter.h) */
1412 extern void drm_sg_cleanup(struct drm_sg_mem
* entry
);
1413 extern int drm_sg_alloc_ioctl(struct drm_device
*dev
, void *data
,
1414 struct drm_file
*file_priv
);
1415 extern int drm_sg_alloc(struct drm_device
*dev
, struct drm_scatter_gather
* request
);
1416 extern int drm_sg_free(struct drm_device
*dev
, void *data
,
1417 struct drm_file
*file_priv
);
1419 /* ATI PCIGART support (ati_pcigart.h) */
1420 extern int drm_ati_pcigart_init(struct drm_device
*dev
,
1421 struct drm_ati_pcigart_info
* gart_info
);
1422 extern int drm_ati_pcigart_cleanup(struct drm_device
*dev
,
1423 struct drm_ati_pcigart_info
* gart_info
);
1425 extern drm_dma_handle_t
*drm_pci_alloc(struct drm_device
*dev
, size_t size
,
1427 extern void __drm_pci_free(struct drm_device
*dev
, drm_dma_handle_t
* dmah
);
1428 extern void drm_pci_free(struct drm_device
*dev
, drm_dma_handle_t
* dmah
);
1430 /* sysfs support (drm_sysfs.c) */
1431 struct drm_sysfs_class
;
1432 extern struct class *drm_sysfs_create(struct module
*owner
, char *name
);
1433 extern void drm_sysfs_destroy(void);
1434 extern int drm_sysfs_device_add(struct drm_minor
*minor
);
1435 extern void drm_sysfs_hotplug_event(struct drm_device
*dev
);
1436 extern void drm_sysfs_device_remove(struct drm_minor
*minor
);
1437 extern char *drm_get_connector_status_name(enum drm_connector_status status
);
1438 extern int drm_sysfs_connector_add(struct drm_connector
*connector
);
1439 extern void drm_sysfs_connector_remove(struct drm_connector
*connector
);
1441 /* Graphics Execution Manager library functions (drm_gem.c) */
1442 int drm_gem_init(struct drm_device
*dev
);
1443 void drm_gem_destroy(struct drm_device
*dev
);
1444 void drm_gem_object_release(struct drm_gem_object
*obj
);
1445 void drm_gem_object_free(struct kref
*kref
);
1446 void drm_gem_object_free_unlocked(struct kref
*kref
);
1447 struct drm_gem_object
*drm_gem_object_alloc(struct drm_device
*dev
,
1449 int drm_gem_object_init(struct drm_device
*dev
,
1450 struct drm_gem_object
*obj
, size_t size
);
1451 void drm_gem_object_handle_free(struct kref
*kref
);
1452 void drm_gem_vm_open(struct vm_area_struct
*vma
);
1453 void drm_gem_vm_close(struct vm_area_struct
*vma
);
1454 int drm_gem_mmap(struct file
*filp
, struct vm_area_struct
*vma
);
1456 #include "drm_global.h"
1459 drm_gem_object_reference(struct drm_gem_object
*obj
)
1461 kref_get(&obj
->refcount
);
1465 drm_gem_object_unreference(struct drm_gem_object
*obj
)
1468 kref_put(&obj
->refcount
, drm_gem_object_free
);
1472 drm_gem_object_unreference_unlocked(struct drm_gem_object
*obj
)
1475 kref_put(&obj
->refcount
, drm_gem_object_free_unlocked
);
1478 int drm_gem_handle_create(struct drm_file
*file_priv
,
1479 struct drm_gem_object
*obj
,
1483 drm_gem_object_handle_reference(struct drm_gem_object
*obj
)
1485 drm_gem_object_reference(obj
);
1486 kref_get(&obj
->handlecount
);
1490 drm_gem_object_handle_unreference(struct drm_gem_object
*obj
)
1496 * Must bump handle count first as this may be the last
1497 * ref, in which case the object would disappear before we
1498 * checked for a name
1500 kref_put(&obj
->handlecount
, drm_gem_object_handle_free
);
1501 drm_gem_object_unreference(obj
);
1505 drm_gem_object_handle_unreference_unlocked(struct drm_gem_object
*obj
)
1511 * Must bump handle count first as this may be the last
1512 * ref, in which case the object would disappear before we
1513 * checked for a name
1515 kref_put(&obj
->handlecount
, drm_gem_object_handle_free
);
1516 drm_gem_object_unreference_unlocked(obj
);
1519 struct drm_gem_object
*drm_gem_object_lookup(struct drm_device
*dev
,
1520 struct drm_file
*filp
,
1522 int drm_gem_close_ioctl(struct drm_device
*dev
, void *data
,
1523 struct drm_file
*file_priv
);
1524 int drm_gem_flink_ioctl(struct drm_device
*dev
, void *data
,
1525 struct drm_file
*file_priv
);
1526 int drm_gem_open_ioctl(struct drm_device
*dev
, void *data
,
1527 struct drm_file
*file_priv
);
1528 void drm_gem_open(struct drm_device
*dev
, struct drm_file
*file_private
);
1529 void drm_gem_release(struct drm_device
*dev
, struct drm_file
*file_private
);
1531 extern void drm_core_ioremap(struct drm_local_map
*map
, struct drm_device
*dev
);
1532 extern void drm_core_ioremap_wc(struct drm_local_map
*map
, struct drm_device
*dev
);
1533 extern void drm_core_ioremapfree(struct drm_local_map
*map
, struct drm_device
*dev
);
1535 static __inline__
struct drm_local_map
*drm_core_findmap(struct drm_device
*dev
,
1538 struct drm_map_list
*_entry
;
1539 list_for_each_entry(_entry
, &dev
->maplist
, head
)
1540 if (_entry
->user_token
== token
)
1545 static __inline__
int drm_device_is_agp(struct drm_device
*dev
)
1547 if (drm_core_check_feature(dev
, DRIVER_USE_PLATFORM_DEVICE
))
1550 if (dev
->driver
->device_is_agp
!= NULL
) {
1551 int err
= (*dev
->driver
->device_is_agp
) (dev
);
1558 return pci_find_capability(dev
->pdev
, PCI_CAP_ID_AGP
);
1561 static __inline__
int drm_device_is_pcie(struct drm_device
*dev
)
1563 if (drm_core_check_feature(dev
, DRIVER_USE_PLATFORM_DEVICE
))
1566 return pci_find_capability(dev
->pdev
, PCI_CAP_ID_EXP
);
1569 static __inline__
void drm_core_dropmap(struct drm_local_map
*map
)
1573 #include "drm_mem_util.h"
1575 static inline void *drm_get_device(struct drm_device
*dev
)
1577 if (drm_core_check_feature(dev
, DRIVER_USE_PLATFORM_DEVICE
))
1578 return dev
->platformdev
;
1583 extern int drm_platform_init(struct drm_driver
*driver
);
1584 extern int drm_pci_init(struct drm_driver
*driver
);
1585 extern int drm_fill_in_dev(struct drm_device
*dev
,
1586 const struct pci_device_id
*ent
,
1587 struct drm_driver
*driver
);
1588 int drm_get_minor(struct drm_device
*dev
, struct drm_minor
**minor
, int type
);
1591 #endif /* __KERNEL__ */