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/dma-mapping.h>
57 #include <linux/cdev.h>
58 #include <linux/mutex.h>
59 #include <linux/slab.h>
60 #if defined(__alpha__) || defined(__powerpc__)
61 #include <asm/pgtable.h> /* For pte_wrprotect */
65 #include <asm/uaccess.h>
69 #if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
70 #include <linux/types.h>
71 #include <linux/agp_backend.h>
73 #include <linux/workqueue.h>
74 #include <linux/poll.h>
75 #include <asm/pgalloc.h>
78 #include <linux/idr.h>
80 #define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE)))
81 #define __OS_HAS_MTRR (defined(CONFIG_MTRR))
86 #include "drm_os_linux.h"
87 #include "drm_hashtab.h"
90 #define DRM_UT_CORE 0x01
91 #define DRM_UT_DRIVER 0x02
92 #define DRM_UT_KMS 0x04
94 * Three debug levels are defined.
95 * drm_core, drm_driver, drm_kms
96 * drm_core level can be used in the generic drm code. For example:
97 * drm_ioctl, drm_mm, drm_memory
98 * The macro definiton of DRM_DEBUG is used.
99 * DRM_DEBUG(fmt, args...)
100 * The debug info by using the DRM_DEBUG can be obtained by adding
101 * the boot option of "drm.debug=1".
103 * drm_driver level can be used in the specific drm driver. It is used
104 * to add the debug info related with the drm driver. For example:
105 * i915_drv, i915_dma, i915_gem, radeon_drv,
106 * The macro definition of DRM_DEBUG_DRIVER can be used.
107 * DRM_DEBUG_DRIVER(fmt, args...)
108 * The debug info by using the DRM_DEBUG_DRIVER can be obtained by
109 * adding the boot option of "drm.debug=0x02"
111 * drm_kms level can be used in the KMS code related with specific drm driver.
112 * It is used to add the debug info related with KMS mode. For example:
113 * the connector/crtc ,
114 * The macro definition of DRM_DEBUG_KMS can be used.
115 * DRM_DEBUG_KMS(fmt, args...)
116 * The debug info by using the DRM_DEBUG_KMS can be obtained by
117 * adding the boot option of "drm.debug=0x04"
119 * If we add the boot option of "drm.debug=0x06", we can get the debug info by
120 * using the DRM_DEBUG_KMS and DRM_DEBUG_DRIVER.
121 * If we add the boot option of "drm.debug=0x05", we can get the debug info by
122 * using the DRM_DEBUG_KMS and DRM_DEBUG.
125 extern void drm_ut_debug_printk(unsigned int request_level
,
127 const char *function_name
,
128 const char *format
, ...);
129 /***********************************************************************/
130 /** \name DRM template customization defaults */
133 /* driver capabilities and requirements mask */
134 #define DRIVER_USE_AGP 0x1
135 #define DRIVER_REQUIRE_AGP 0x2
136 #define DRIVER_USE_MTRR 0x4
137 #define DRIVER_PCI_DMA 0x8
138 #define DRIVER_SG 0x10
139 #define DRIVER_HAVE_DMA 0x20
140 #define DRIVER_HAVE_IRQ 0x40
141 #define DRIVER_IRQ_SHARED 0x80
142 #define DRIVER_IRQ_VBL 0x100
143 #define DRIVER_DMA_QUEUE 0x200
144 #define DRIVER_FB_DMA 0x400
145 #define DRIVER_IRQ_VBL2 0x800
146 #define DRIVER_GEM 0x1000
147 #define DRIVER_MODESET 0x2000
148 #define DRIVER_USE_PLATFORM_DEVICE 0x4000
150 /***********************************************************************/
151 /** \name Begin the DRM... */
154 #define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then
155 also include looping detection. */
157 #define DRM_MAGIC_HASH_ORDER 4 /**< Size of key hash table. Must be power of 2. */
158 #define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */
159 #define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */
160 #define DRM_LOOPING_LIMIT 5000000
161 #define DRM_TIME_SLICE (HZ/20) /**< Time slice for GLXContexts */
162 #define DRM_LOCK_SLICE 1 /**< Time slice for lock, in jiffies */
164 #define DRM_FLAG_DEBUG 0x01
166 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
167 #define DRM_MAP_HASH_OFFSET 0x10000000
171 /***********************************************************************/
172 /** \name Macros to make printk easier */
178 * \param fmt printf() like format string.
179 * \param arg arguments
181 #define DRM_ERROR(fmt, arg...) \
182 printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* " fmt , __func__ , ##arg)
185 * Memory error output.
187 * \param area memory area where the error occurred.
188 * \param fmt printf() like format string.
189 * \param arg arguments
191 #define DRM_MEM_ERROR(area, fmt, arg...) \
192 printk(KERN_ERR "[" DRM_NAME ":%s:%s] *ERROR* " fmt , __func__, \
193 drm_mem_stats[area].name , ##arg)
195 #define DRM_INFO(fmt, arg...) printk(KERN_INFO "[" DRM_NAME "] " fmt , ##arg)
200 * \param fmt printf() like format string.
201 * \param arg arguments
204 #define DRM_DEBUG(fmt, args...) \
206 drm_ut_debug_printk(DRM_UT_CORE, DRM_NAME, \
207 __func__, fmt, ##args); \
210 #define DRM_DEBUG_DRIVER(fmt, args...) \
212 drm_ut_debug_printk(DRM_UT_DRIVER, DRM_NAME, \
213 __func__, fmt, ##args); \
215 #define DRM_DEBUG_KMS(fmt, args...) \
217 drm_ut_debug_printk(DRM_UT_KMS, DRM_NAME, \
218 __func__, fmt, ##args); \
220 #define DRM_LOG(fmt, args...) \
222 drm_ut_debug_printk(DRM_UT_CORE, NULL, \
223 NULL, fmt, ##args); \
225 #define DRM_LOG_KMS(fmt, args...) \
227 drm_ut_debug_printk(DRM_UT_KMS, NULL, \
228 NULL, fmt, ##args); \
230 #define DRM_LOG_MODE(fmt, args...) \
232 drm_ut_debug_printk(DRM_UT_MODE, NULL, \
233 NULL, fmt, ##args); \
235 #define DRM_LOG_DRIVER(fmt, args...) \
237 drm_ut_debug_printk(DRM_UT_DRIVER, NULL, \
238 NULL, fmt, ##args); \
241 #define DRM_DEBUG_DRIVER(fmt, args...) do { } while (0)
242 #define DRM_DEBUG_KMS(fmt, args...) do { } while (0)
243 #define DRM_DEBUG(fmt, arg...) do { } while (0)
244 #define DRM_LOG(fmt, arg...) do { } while (0)
245 #define DRM_LOG_KMS(fmt, args...) do { } while (0)
246 #define DRM_LOG_MODE(fmt, arg...) do { } while (0)
247 #define DRM_LOG_DRIVER(fmt, arg...) do { } while (0)
253 /***********************************************************************/
254 /** \name Internal types and structures */
257 #define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x)
259 #define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
260 #define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
262 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
265 * Test that the hardware lock is held by the caller, returning otherwise.
267 * \param dev DRM device.
268 * \param filp file pointer of the caller.
270 #define LOCK_TEST_WITH_RETURN( dev, _file_priv ) \
272 if (!_DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock) || \
273 _file_priv->master->lock.file_priv != _file_priv) { \
274 DRM_ERROR( "%s called without lock held, held %d owner %p %p\n",\
275 __func__, _DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock),\
276 _file_priv->master->lock.file_priv, _file_priv); \
282 * Ioctl function type.
284 * \param inode device inode.
285 * \param file_priv DRM file private pointer.
286 * \param cmd command.
287 * \param arg argument.
289 typedef int drm_ioctl_t(struct drm_device
*dev
, void *data
,
290 struct drm_file
*file_priv
);
292 typedef int drm_ioctl_compat_t(struct file
*filp
, unsigned int cmd
,
295 #define DRM_IOCTL_NR(n) _IOC_NR(n)
296 #define DRM_MAJOR 226
299 #define DRM_MASTER 0x2
300 #define DRM_ROOT_ONLY 0x4
301 #define DRM_CONTROL_ALLOW 0x8
302 #define DRM_UNLOCKED 0x10
304 struct drm_ioctl_desc
{
308 unsigned int cmd_drv
;
312 * Creates a driver or general drm_ioctl_desc array entry for the given
313 * ioctl, for use by drm_ioctl().
316 #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \
317 [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl}
319 struct drm_magic_entry
{
320 struct list_head head
;
321 struct drm_hash_item hash_item
;
322 struct drm_file
*priv
;
325 struct drm_vma_entry
{
326 struct list_head head
;
327 struct vm_area_struct
*vma
;
335 int idx
; /**< Index into master buflist */
336 int total
; /**< Buffer size */
337 int order
; /**< log-base-2(total) */
338 int used
; /**< Amount of buffer in use (for DMA) */
339 unsigned long offset
; /**< Byte offset (used internally) */
340 void *address
; /**< Address of buffer */
341 unsigned long bus_address
; /**< Bus address of buffer */
342 struct drm_buf
*next
; /**< Kernel-only: used for free list */
343 __volatile__
int waiting
; /**< On kernel DMA queue */
344 __volatile__
int pending
; /**< On hardware DMA queue */
345 wait_queue_head_t dma_wait
; /**< Processes waiting */
346 struct drm_file
*file_priv
; /**< Private of holding file descr */
347 int context
; /**< Kernel queue for this buffer */
348 int while_locked
; /**< Dispatch this buffer while locked */
356 } list
; /**< Which list we're on */
358 int dev_priv_size
; /**< Size of buffer private storage */
359 void *dev_private
; /**< Per-buffer private storage */
362 /** bufs is one longer than it has to be */
363 struct drm_waitlist
{
364 int count
; /**< Number of possible buffers */
365 struct drm_buf
**bufs
; /**< List of pointers to buffers */
366 struct drm_buf
**rp
; /**< Read pointer */
367 struct drm_buf
**wp
; /**< Write pointer */
368 struct drm_buf
**end
; /**< End pointer */
369 spinlock_t read_lock
;
370 spinlock_t write_lock
;
373 struct drm_freelist
{
374 int initialized
; /**< Freelist in use */
375 atomic_t count
; /**< Number of free buffers */
376 struct drm_buf
*next
; /**< End pointer */
378 wait_queue_head_t waiting
; /**< Processes waiting on free bufs */
379 int low_mark
; /**< Low water mark */
380 int high_mark
; /**< High water mark */
381 atomic_t wfh
; /**< If waiting for high mark */
385 typedef struct drm_dma_handle
{
392 * Buffer entry. There is one of this for each buffer size order.
394 struct drm_buf_entry
{
395 int buf_size
; /**< size */
396 int buf_count
; /**< number of buffers */
397 struct drm_buf
*buflist
; /**< buffer list */
400 struct drm_dma_handle
**seglist
;
402 struct drm_freelist freelist
;
405 /* Event queued up for userspace to read */
406 struct drm_pending_event
{
407 struct drm_event
*event
;
408 struct list_head link
;
409 struct drm_file
*file_priv
;
410 pid_t pid
; /* pid of requester, no guarantee it's valid by the time
411 we deliver the event, for tracing only */
412 void (*destroy
)(struct drm_pending_event
*event
);
415 /** File private data */
421 unsigned long ioctl_count
;
422 struct list_head lhead
;
423 struct drm_minor
*minor
;
424 unsigned long lock_count
;
426 /** Mapping of mm object handles to object pointers. */
427 struct idr object_idr
;
428 /** Lock for synchronization of access to object_idr. */
429 spinlock_t table_lock
;
434 int is_master
; /* this file private is a master for a minor */
435 struct drm_master
*master
; /* master this node is currently associated with
436 N.B. not always minor->master */
437 struct list_head fbs
;
439 wait_queue_head_t event_wait
;
440 struct list_head event_list
;
446 atomic_t use_count
; /**< Outstanding uses (+1) */
447 atomic_t finalization
; /**< Finalization in progress */
448 atomic_t block_count
; /**< Count of processes waiting */
449 atomic_t block_read
; /**< Queue blocked for reads */
450 wait_queue_head_t read_queue
; /**< Processes waiting on block_read */
451 atomic_t block_write
; /**< Queue blocked for writes */
452 wait_queue_head_t write_queue
; /**< Processes waiting on block_write */
453 atomic_t total_queued
; /**< Total queued statistic */
454 atomic_t total_flushed
; /**< Total flushes statistic */
455 atomic_t total_locks
; /**< Total locks statistics */
456 enum drm_ctx_flags flags
; /**< Context preserving and 2D-only */
457 struct drm_waitlist waitlist
; /**< Pending buffers */
458 wait_queue_head_t flush_queue
; /**< Processes waiting until flush */
464 struct drm_lock_data
{
465 struct drm_hw_lock
*hw_lock
; /**< Hardware lock */
466 /** Private of lock holder's file (NULL=kernel) */
467 struct drm_file
*file_priv
;
468 wait_queue_head_t lock_queue
; /**< Queue of blocked processes */
469 unsigned long lock_time
; /**< Time of last lock in jiffies */
471 uint32_t kernel_waiters
;
472 uint32_t user_waiters
;
479 struct drm_device_dma
{
481 struct drm_buf_entry bufs
[DRM_MAX_ORDER
+ 1]; /**< buffers, grouped by their size order */
482 int buf_count
; /**< total number of buffers */
483 struct drm_buf
**buflist
; /**< Vector of pointers into drm_device_dma::bufs */
485 int page_count
; /**< number of pages */
486 unsigned long *pagelist
; /**< page list */
487 unsigned long byte_count
;
489 _DRM_DMA_USE_AGP
= 0x01,
490 _DRM_DMA_USE_SG
= 0x02,
491 _DRM_DMA_USE_FB
= 0x04,
492 _DRM_DMA_USE_PCI_RO
= 0x08
498 * AGP memory entry. Stored as a doubly linked list.
501 unsigned long handle
; /**< handle */
503 unsigned long bound
; /**< address */
505 struct list_head head
;
511 * \sa drm_agp_init() and drm_device::agp.
513 struct drm_agp_head
{
514 DRM_AGP_KERN agp_info
; /**< AGP device information */
515 struct list_head memory
;
516 unsigned long mode
; /**< AGP mode */
517 struct agp_bridge_data
*bridge
;
518 int enabled
; /**< whether the AGP bus as been enabled */
519 int acquired
; /**< whether the AGP device has been acquired */
522 int cant_use_aperture
;
523 unsigned long page_mask
;
527 * Scatter-gather memory.
530 unsigned long handle
;
533 struct page
**pagelist
;
539 struct drm_hw_lock
*lock
;
544 * Kernel side of a mapping
546 struct drm_local_map
{
547 resource_size_t offset
; /**< Requested physical address (0 for SAREA)*/
548 unsigned long size
; /**< Requested physical size (bytes) */
549 enum drm_map_type type
; /**< Type of memory to map */
550 enum drm_map_flags flags
; /**< Flags */
551 void *handle
; /**< User-space: "Handle" to pass to mmap() */
552 /**< Kernel-space: kernel-virtual address */
553 int mtrr
; /**< MTRR slot used */
556 typedef struct drm_local_map drm_local_map_t
;
561 struct drm_map_list
{
562 struct list_head head
; /**< list head */
563 struct drm_hash_item hash
;
564 struct drm_local_map
*map
; /**< mapping */
566 struct drm_master
*master
;
567 struct drm_mm_node
*file_offset_node
; /**< fake offset */
571 * Context handle list
573 struct drm_ctx_list
{
574 struct list_head head
; /**< list head */
575 drm_context_t handle
; /**< context handle */
576 struct drm_file
*tag
; /**< associated fd private data */
579 /* location of GART table */
580 #define DRM_ATI_GART_MAIN 1
581 #define DRM_ATI_GART_FB 2
583 #define DRM_ATI_GART_PCI 1
584 #define DRM_ATI_GART_PCIE 2
585 #define DRM_ATI_GART_IGP 3
587 struct drm_ati_pcigart_info
{
588 int gart_table_location
;
592 dma_addr_t table_mask
;
593 struct drm_dma_handle
*table_handle
;
594 struct drm_local_map mapping
;
599 * GEM specific mm private for tracking GEM objects
602 struct drm_mm offset_manager
; /**< Offset mgmt for buffer objects */
603 struct drm_open_hash offset_hash
; /**< User token hash table for maps */
607 * This structure defines the drm_mm memory object, which will be used by the
608 * DRM for its buffer objects.
610 struct drm_gem_object
{
611 /** Reference count of this object */
612 struct kref refcount
;
614 /** Handle count of this object. Each handle also holds a reference */
615 atomic_t handle_count
; /* number of handles on this object */
617 /** Related drm device */
618 struct drm_device
*dev
;
620 /** File representing the shmem storage */
623 /* Mapping info for this object */
624 struct drm_map_list map_list
;
627 * Size of the object, in bytes. Immutable over the object's
633 * Global name for this object, starts at 1. 0 means unnamed.
634 * Access is covered by the object_name_lock in the related drm_device
639 * Memory domains. These monitor which caches contain read/write data
640 * related to the object. When transitioning from one set of domains
641 * to another, the driver is called to ensure that caches are suitably
642 * flushed and invalidated
644 uint32_t read_domains
;
645 uint32_t write_domain
;
648 * While validating an exec operation, the
649 * new read/write domain values are computed here.
650 * They will be transferred to the above values
651 * at the point that any cache flushing occurs
653 uint32_t pending_read_domains
;
654 uint32_t pending_write_domain
;
656 void *driver_private
;
659 #include "drm_crtc.h"
661 /* per-master structure */
664 struct kref refcount
; /* refcount for this master */
666 struct list_head head
; /**< each minor contains a list of masters */
667 struct drm_minor
*minor
; /**< link back to minor we are a master for */
669 char *unique
; /**< Unique identifier: e.g., busid */
670 int unique_len
; /**< Length of unique field */
671 int unique_size
; /**< amount allocated */
673 int blocked
; /**< Blocked due to VC switch? */
675 /** \name Authentication */
677 struct drm_open_hash magiclist
;
678 struct list_head magicfree
;
681 struct drm_lock_data lock
; /**< Information on hardware lock */
683 void *driver_priv
; /**< Private structure for driver to use */
687 * DRM driver structure. This structure represent the common code for
688 * a family of cards. There will one drm_device for each card present
692 int (*load
) (struct drm_device
*, unsigned long flags
);
693 int (*firstopen
) (struct drm_device
*);
694 int (*open
) (struct drm_device
*, struct drm_file
*);
695 void (*preclose
) (struct drm_device
*, struct drm_file
*file_priv
);
696 void (*postclose
) (struct drm_device
*, struct drm_file
*);
697 void (*lastclose
) (struct drm_device
*);
698 int (*unload
) (struct drm_device
*);
699 int (*suspend
) (struct drm_device
*, pm_message_t state
);
700 int (*resume
) (struct drm_device
*);
701 int (*dma_ioctl
) (struct drm_device
*dev
, void *data
, struct drm_file
*file_priv
);
702 void (*dma_ready
) (struct drm_device
*);
703 int (*dma_quiescent
) (struct drm_device
*);
704 int (*context_ctor
) (struct drm_device
*dev
, int context
);
705 int (*context_dtor
) (struct drm_device
*dev
, int context
);
706 int (*kernel_context_switch
) (struct drm_device
*dev
, int old
,
708 void (*kernel_context_switch_unlock
) (struct drm_device
*dev
);
711 * get_vblank_counter - get raw hardware vblank counter
713 * @crtc: counter to fetch
715 * Driver callback for fetching a raw hardware vblank counter
716 * for @crtc. If a device doesn't have a hardware counter, the
717 * driver can simply return the value of drm_vblank_count and
718 * make the enable_vblank() and disable_vblank() hooks into no-ops,
719 * leaving interrupts enabled at all times.
721 * Wraparound handling and loss of events due to modesetting is dealt
722 * with in the DRM core code.
725 * Raw vblank counter value.
727 u32 (*get_vblank_counter
) (struct drm_device
*dev
, int crtc
);
730 * enable_vblank - enable vblank interrupt events
732 * @crtc: which irq to enable
734 * Enable vblank interrupts for @crtc. If the device doesn't have
735 * a hardware vblank counter, this routine should be a no-op, since
736 * interrupts will have to stay on to keep the count accurate.
739 * Zero on success, appropriate errno if the given @crtc's vblank
740 * interrupt cannot be enabled.
742 int (*enable_vblank
) (struct drm_device
*dev
, int crtc
);
745 * disable_vblank - disable vblank interrupt events
747 * @crtc: which irq to enable
749 * Disable vblank interrupts for @crtc. If the device doesn't have
750 * a hardware vblank counter, this routine should be a no-op, since
751 * interrupts will have to stay on to keep the count accurate.
753 void (*disable_vblank
) (struct drm_device
*dev
, int crtc
);
756 * Called by \c drm_device_is_agp. Typically used to determine if a
757 * card is really attached to AGP or not.
759 * \param dev DRM device handle
762 * One of three values is returned depending on whether or not the
763 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
764 * (return of 1), or may or may not be AGP (return of 2).
766 int (*device_is_agp
) (struct drm_device
*dev
);
768 /* these have to be filled in */
770 irqreturn_t(*irq_handler
) (DRM_IRQ_ARGS
);
771 void (*irq_preinstall
) (struct drm_device
*dev
);
772 int (*irq_postinstall
) (struct drm_device
*dev
);
773 void (*irq_uninstall
) (struct drm_device
*dev
);
774 void (*reclaim_buffers
) (struct drm_device
*dev
,
775 struct drm_file
* file_priv
);
776 void (*reclaim_buffers_locked
) (struct drm_device
*dev
,
777 struct drm_file
*file_priv
);
778 void (*reclaim_buffers_idlelocked
) (struct drm_device
*dev
,
779 struct drm_file
*file_priv
);
780 resource_size_t (*get_map_ofs
) (struct drm_local_map
* map
);
781 resource_size_t (*get_reg_ofs
) (struct drm_device
*dev
);
782 void (*set_version
) (struct drm_device
*dev
,
783 struct drm_set_version
*sv
);
785 /* Master routines */
786 int (*master_create
)(struct drm_device
*dev
, struct drm_master
*master
);
787 void (*master_destroy
)(struct drm_device
*dev
, struct drm_master
*master
);
789 * master_set is called whenever the minor master is set.
790 * master_drop is called whenever the minor master is dropped.
793 int (*master_set
)(struct drm_device
*dev
, struct drm_file
*file_priv
,
795 void (*master_drop
)(struct drm_device
*dev
, struct drm_file
*file_priv
,
798 int (*proc_init
)(struct drm_minor
*minor
);
799 void (*proc_cleanup
)(struct drm_minor
*minor
);
800 int (*debugfs_init
)(struct drm_minor
*minor
);
801 void (*debugfs_cleanup
)(struct drm_minor
*minor
);
804 * Driver-specific constructor for drm_gem_objects, to set up
805 * obj->driver_private.
807 * Returns 0 on success.
809 int (*gem_init_object
) (struct drm_gem_object
*obj
);
810 void (*gem_free_object
) (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);
1079 static inline int drm_dev_to_irq(struct drm_device
*dev
)
1081 if (drm_core_check_feature(dev
, DRIVER_USE_PLATFORM_DEVICE
))
1082 return platform_get_irq(dev
->platformdev
, 0);
1084 return dev
->pdev
->irq
;
1087 static inline int drm_get_pci_domain(struct drm_device
*dev
)
1089 if (drm_core_check_feature(dev
, DRIVER_USE_PLATFORM_DEVICE
))
1093 /* For historical reasons, drm_get_pci_domain() is busticated
1094 * on most archs and has to remain so for userspace interface
1095 * < 1.4, except on alpha which was right from the beginning
1097 if (dev
->if_version
< 0x10004)
1099 #endif /* __alpha__ */
1101 return pci_domain_nr(dev
->pdev
->bus
);
1105 static inline int drm_core_has_AGP(struct drm_device
*dev
)
1107 return drm_core_check_feature(dev
, DRIVER_USE_AGP
);
1110 #define drm_core_has_AGP(dev) (0)
1114 static inline int drm_core_has_MTRR(struct drm_device
*dev
)
1116 return drm_core_check_feature(dev
, DRIVER_USE_MTRR
);
1119 #define DRM_MTRR_WC MTRR_TYPE_WRCOMB
1121 static inline int drm_mtrr_add(unsigned long offset
, unsigned long size
,
1124 return mtrr_add(offset
, size
, flags
, 1);
1127 static inline int drm_mtrr_del(int handle
, unsigned long offset
,
1128 unsigned long size
, unsigned int flags
)
1130 return mtrr_del(handle
, offset
, size
);
1134 #define drm_core_has_MTRR(dev) (0)
1136 #define DRM_MTRR_WC 0
1138 static inline int drm_mtrr_add(unsigned long offset
, unsigned long size
,
1144 static inline int drm_mtrr_del(int handle
, unsigned long offset
,
1145 unsigned long size
, unsigned int flags
)
1151 /******************************************************************/
1152 /** \name Internal function definitions */
1155 /* Driver support (drm_drv.h) */
1156 extern int drm_init(struct drm_driver
*driver
);
1157 extern void drm_exit(struct drm_driver
*driver
);
1158 extern long drm_ioctl(struct file
*filp
,
1159 unsigned int cmd
, unsigned long arg
);
1160 extern long drm_compat_ioctl(struct file
*filp
,
1161 unsigned int cmd
, unsigned long arg
);
1162 extern int drm_lastclose(struct drm_device
*dev
);
1164 /* Device support (drm_fops.h) */
1165 extern struct mutex drm_global_mutex
;
1166 extern int drm_open(struct inode
*inode
, struct file
*filp
);
1167 extern int drm_stub_open(struct inode
*inode
, struct file
*filp
);
1168 extern int drm_fasync(int fd
, struct file
*filp
, int on
);
1169 extern ssize_t
drm_read(struct file
*filp
, char __user
*buffer
,
1170 size_t count
, loff_t
*offset
);
1171 extern int drm_release(struct inode
*inode
, struct file
*filp
);
1173 /* Mapping support (drm_vm.h) */
1174 extern int drm_mmap(struct file
*filp
, struct vm_area_struct
*vma
);
1175 extern int drm_mmap_locked(struct file
*filp
, struct vm_area_struct
*vma
);
1176 extern void drm_vm_open_locked(struct vm_area_struct
*vma
);
1177 extern void drm_vm_close_locked(struct vm_area_struct
*vma
);
1178 extern resource_size_t
drm_core_get_map_ofs(struct drm_local_map
* map
);
1179 extern resource_size_t
drm_core_get_reg_ofs(struct drm_device
*dev
);
1180 extern unsigned int drm_poll(struct file
*filp
, struct poll_table_struct
*wait
);
1182 /* Memory management support (drm_memory.h) */
1183 #include "drm_memory.h"
1184 extern void drm_mem_init(void);
1185 extern int drm_mem_info(char *buf
, char **start
, off_t offset
,
1186 int request
, int *eof
, void *data
);
1187 extern void *drm_realloc(void *oldpt
, size_t oldsize
, size_t size
, int area
);
1189 extern DRM_AGP_MEM
*drm_alloc_agp(struct drm_device
*dev
, int pages
, u32 type
);
1190 extern int drm_free_agp(DRM_AGP_MEM
* handle
, int pages
);
1191 extern int drm_bind_agp(DRM_AGP_MEM
* handle
, unsigned int start
);
1192 extern DRM_AGP_MEM
*drm_agp_bind_pages(struct drm_device
*dev
,
1193 struct page
**pages
,
1194 unsigned long num_pages
,
1195 uint32_t gtt_offset
,
1197 extern int drm_unbind_agp(DRM_AGP_MEM
* handle
);
1199 /* Misc. IOCTL support (drm_ioctl.h) */
1200 extern int drm_irq_by_busid(struct drm_device
*dev
, void *data
,
1201 struct drm_file
*file_priv
);
1202 extern int drm_getunique(struct drm_device
*dev
, void *data
,
1203 struct drm_file
*file_priv
);
1204 extern int drm_setunique(struct drm_device
*dev
, void *data
,
1205 struct drm_file
*file_priv
);
1206 extern int drm_getmap(struct drm_device
*dev
, void *data
,
1207 struct drm_file
*file_priv
);
1208 extern int drm_getclient(struct drm_device
*dev
, void *data
,
1209 struct drm_file
*file_priv
);
1210 extern int drm_getstats(struct drm_device
*dev
, void *data
,
1211 struct drm_file
*file_priv
);
1212 extern int drm_setversion(struct drm_device
*dev
, void *data
,
1213 struct drm_file
*file_priv
);
1214 extern int drm_noop(struct drm_device
*dev
, void *data
,
1215 struct drm_file
*file_priv
);
1217 /* Context IOCTL support (drm_context.h) */
1218 extern int drm_resctx(struct drm_device
*dev
, void *data
,
1219 struct drm_file
*file_priv
);
1220 extern int drm_addctx(struct drm_device
*dev
, void *data
,
1221 struct drm_file
*file_priv
);
1222 extern int drm_modctx(struct drm_device
*dev
, void *data
,
1223 struct drm_file
*file_priv
);
1224 extern int drm_getctx(struct drm_device
*dev
, void *data
,
1225 struct drm_file
*file_priv
);
1226 extern int drm_switchctx(struct drm_device
*dev
, void *data
,
1227 struct drm_file
*file_priv
);
1228 extern int drm_newctx(struct drm_device
*dev
, void *data
,
1229 struct drm_file
*file_priv
);
1230 extern int drm_rmctx(struct drm_device
*dev
, void *data
,
1231 struct drm_file
*file_priv
);
1233 extern int drm_ctxbitmap_init(struct drm_device
*dev
);
1234 extern void drm_ctxbitmap_cleanup(struct drm_device
*dev
);
1235 extern void drm_ctxbitmap_free(struct drm_device
*dev
, int ctx_handle
);
1237 extern int drm_setsareactx(struct drm_device
*dev
, void *data
,
1238 struct drm_file
*file_priv
);
1239 extern int drm_getsareactx(struct drm_device
*dev
, void *data
,
1240 struct drm_file
*file_priv
);
1242 /* Drawable IOCTL support (drm_drawable.h) */
1243 extern int drm_adddraw(struct drm_device
*dev
, void *data
,
1244 struct drm_file
*file_priv
);
1245 extern int drm_rmdraw(struct drm_device
*dev
, void *data
,
1246 struct drm_file
*file_priv
);
1247 extern int drm_update_drawable_info(struct drm_device
*dev
, void *data
,
1248 struct drm_file
*file_priv
);
1249 extern struct drm_drawable_info
*drm_get_drawable_info(struct drm_device
*dev
,
1251 extern void drm_drawable_free_all(struct drm_device
*dev
);
1253 /* Authentication IOCTL support (drm_auth.h) */
1254 extern int drm_getmagic(struct drm_device
*dev
, void *data
,
1255 struct drm_file
*file_priv
);
1256 extern int drm_authmagic(struct drm_device
*dev
, void *data
,
1257 struct drm_file
*file_priv
);
1259 /* Cache management (drm_cache.c) */
1260 void drm_clflush_pages(struct page
*pages
[], unsigned long num_pages
);
1262 /* Locking IOCTL support (drm_lock.h) */
1263 extern int drm_lock(struct drm_device
*dev
, void *data
,
1264 struct drm_file
*file_priv
);
1265 extern int drm_unlock(struct drm_device
*dev
, void *data
,
1266 struct drm_file
*file_priv
);
1267 extern int drm_lock_take(struct drm_lock_data
*lock_data
, unsigned int context
);
1268 extern int drm_lock_free(struct drm_lock_data
*lock_data
, unsigned int context
);
1269 extern void drm_idlelock_take(struct drm_lock_data
*lock_data
);
1270 extern void drm_idlelock_release(struct drm_lock_data
*lock_data
);
1273 * These are exported to drivers so that they can implement fencing using
1274 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
1277 extern int drm_i_have_hw_lock(struct drm_device
*dev
, struct drm_file
*file_priv
);
1279 /* Buffer management support (drm_bufs.h) */
1280 extern int drm_addbufs_agp(struct drm_device
*dev
, struct drm_buf_desc
* request
);
1281 extern int drm_addbufs_pci(struct drm_device
*dev
, struct drm_buf_desc
* request
);
1282 extern int drm_addmap(struct drm_device
*dev
, resource_size_t offset
,
1283 unsigned int size
, enum drm_map_type type
,
1284 enum drm_map_flags flags
, struct drm_local_map
**map_ptr
);
1285 extern int drm_addmap_ioctl(struct drm_device
*dev
, void *data
,
1286 struct drm_file
*file_priv
);
1287 extern int drm_rmmap(struct drm_device
*dev
, struct drm_local_map
*map
);
1288 extern int drm_rmmap_locked(struct drm_device
*dev
, struct drm_local_map
*map
);
1289 extern int drm_rmmap_ioctl(struct drm_device
*dev
, void *data
,
1290 struct drm_file
*file_priv
);
1291 extern int drm_addbufs(struct drm_device
*dev
, void *data
,
1292 struct drm_file
*file_priv
);
1293 extern int drm_infobufs(struct drm_device
*dev
, void *data
,
1294 struct drm_file
*file_priv
);
1295 extern int drm_markbufs(struct drm_device
*dev
, void *data
,
1296 struct drm_file
*file_priv
);
1297 extern int drm_freebufs(struct drm_device
*dev
, void *data
,
1298 struct drm_file
*file_priv
);
1299 extern int drm_mapbufs(struct drm_device
*dev
, void *data
,
1300 struct drm_file
*file_priv
);
1301 extern int drm_order(unsigned long size
);
1303 /* DMA support (drm_dma.h) */
1304 extern int drm_dma_setup(struct drm_device
*dev
);
1305 extern void drm_dma_takedown(struct drm_device
*dev
);
1306 extern void drm_free_buffer(struct drm_device
*dev
, struct drm_buf
* buf
);
1307 extern void drm_core_reclaim_buffers(struct drm_device
*dev
,
1308 struct drm_file
*filp
);
1310 /* IRQ support (drm_irq.h) */
1311 extern int drm_control(struct drm_device
*dev
, void *data
,
1312 struct drm_file
*file_priv
);
1313 extern irqreturn_t
drm_irq_handler(DRM_IRQ_ARGS
);
1314 extern int drm_irq_install(struct drm_device
*dev
);
1315 extern int drm_irq_uninstall(struct drm_device
*dev
);
1316 extern void drm_driver_irq_preinstall(struct drm_device
*dev
);
1317 extern void drm_driver_irq_postinstall(struct drm_device
*dev
);
1318 extern void drm_driver_irq_uninstall(struct drm_device
*dev
);
1320 extern int drm_vblank_init(struct drm_device
*dev
, int num_crtcs
);
1321 extern int drm_wait_vblank(struct drm_device
*dev
, void *data
,
1322 struct drm_file
*filp
);
1323 extern int drm_vblank_wait(struct drm_device
*dev
, unsigned int *vbl_seq
);
1324 extern u32
drm_vblank_count(struct drm_device
*dev
, int crtc
);
1325 extern void drm_handle_vblank(struct drm_device
*dev
, int crtc
);
1326 extern int drm_vblank_get(struct drm_device
*dev
, int crtc
);
1327 extern void drm_vblank_put(struct drm_device
*dev
, int crtc
);
1328 extern void drm_vblank_off(struct drm_device
*dev
, int crtc
);
1329 extern void drm_vblank_cleanup(struct drm_device
*dev
);
1330 /* Modesetting support */
1331 extern void drm_vblank_pre_modeset(struct drm_device
*dev
, int crtc
);
1332 extern void drm_vblank_post_modeset(struct drm_device
*dev
, int crtc
);
1333 extern int drm_modeset_ctl(struct drm_device
*dev
, void *data
,
1334 struct drm_file
*file_priv
);
1336 /* AGP/GART support (drm_agpsupport.h) */
1337 extern struct drm_agp_head
*drm_agp_init(struct drm_device
*dev
);
1338 extern int drm_agp_acquire(struct drm_device
*dev
);
1339 extern int drm_agp_acquire_ioctl(struct drm_device
*dev
, void *data
,
1340 struct drm_file
*file_priv
);
1341 extern int drm_agp_release(struct drm_device
*dev
);
1342 extern int drm_agp_release_ioctl(struct drm_device
*dev
, void *data
,
1343 struct drm_file
*file_priv
);
1344 extern int drm_agp_enable(struct drm_device
*dev
, struct drm_agp_mode mode
);
1345 extern int drm_agp_enable_ioctl(struct drm_device
*dev
, void *data
,
1346 struct drm_file
*file_priv
);
1347 extern int drm_agp_info(struct drm_device
*dev
, struct drm_agp_info
*info
);
1348 extern int drm_agp_info_ioctl(struct drm_device
*dev
, void *data
,
1349 struct drm_file
*file_priv
);
1350 extern int drm_agp_alloc(struct drm_device
*dev
, struct drm_agp_buffer
*request
);
1351 extern int drm_agp_alloc_ioctl(struct drm_device
*dev
, void *data
,
1352 struct drm_file
*file_priv
);
1353 extern int drm_agp_free(struct drm_device
*dev
, struct drm_agp_buffer
*request
);
1354 extern int drm_agp_free_ioctl(struct drm_device
*dev
, void *data
,
1355 struct drm_file
*file_priv
);
1356 extern int drm_agp_unbind(struct drm_device
*dev
, struct drm_agp_binding
*request
);
1357 extern int drm_agp_unbind_ioctl(struct drm_device
*dev
, void *data
,
1358 struct drm_file
*file_priv
);
1359 extern int drm_agp_bind(struct drm_device
*dev
, struct drm_agp_binding
*request
);
1360 extern int drm_agp_bind_ioctl(struct drm_device
*dev
, void *data
,
1361 struct drm_file
*file_priv
);
1362 extern DRM_AGP_MEM
*drm_agp_allocate_memory(struct agp_bridge_data
*bridge
, size_t pages
, u32 type
);
1363 extern int drm_agp_free_memory(DRM_AGP_MEM
* handle
);
1364 extern int drm_agp_bind_memory(DRM_AGP_MEM
* handle
, off_t start
);
1365 extern int drm_agp_unbind_memory(DRM_AGP_MEM
* handle
);
1366 extern void drm_agp_chipset_flush(struct drm_device
*dev
);
1368 /* Stub support (drm_stub.h) */
1369 extern int drm_setmaster_ioctl(struct drm_device
*dev
, void *data
,
1370 struct drm_file
*file_priv
);
1371 extern int drm_dropmaster_ioctl(struct drm_device
*dev
, void *data
,
1372 struct drm_file
*file_priv
);
1373 struct drm_master
*drm_master_create(struct drm_minor
*minor
);
1374 extern struct drm_master
*drm_master_get(struct drm_master
*master
);
1375 extern void drm_master_put(struct drm_master
**master
);
1376 extern int drm_get_pci_dev(struct pci_dev
*pdev
,
1377 const struct pci_device_id
*ent
,
1378 struct drm_driver
*driver
);
1379 extern int drm_get_platform_dev(struct platform_device
*pdev
,
1380 struct drm_driver
*driver
);
1381 extern void drm_put_dev(struct drm_device
*dev
);
1382 extern int drm_put_minor(struct drm_minor
**minor
);
1383 extern unsigned int drm_debug
;
1385 extern struct class *drm_class
;
1386 extern struct proc_dir_entry
*drm_proc_root
;
1387 extern struct dentry
*drm_debugfs_root
;
1389 extern struct idr drm_minors_idr
;
1391 extern struct drm_local_map
*drm_getsarea(struct drm_device
*dev
);
1393 /* Proc support (drm_proc.h) */
1394 extern int drm_proc_init(struct drm_minor
*minor
, int minor_id
,
1395 struct proc_dir_entry
*root
);
1396 extern int drm_proc_cleanup(struct drm_minor
*minor
, struct proc_dir_entry
*root
);
1398 /* Debugfs support */
1399 #if defined(CONFIG_DEBUG_FS)
1400 extern int drm_debugfs_init(struct drm_minor
*minor
, int minor_id
,
1401 struct dentry
*root
);
1402 extern int drm_debugfs_create_files(struct drm_info_list
*files
, int count
,
1403 struct dentry
*root
, struct drm_minor
*minor
);
1404 extern int drm_debugfs_remove_files(struct drm_info_list
*files
, int count
,
1405 struct drm_minor
*minor
);
1406 extern int drm_debugfs_cleanup(struct drm_minor
*minor
);
1409 /* Info file support */
1410 extern int drm_name_info(struct seq_file
*m
, void *data
);
1411 extern int drm_vm_info(struct seq_file
*m
, void *data
);
1412 extern int drm_queues_info(struct seq_file
*m
, void *data
);
1413 extern int drm_bufs_info(struct seq_file
*m
, void *data
);
1414 extern int drm_vblank_info(struct seq_file
*m
, void *data
);
1415 extern int drm_clients_info(struct seq_file
*m
, void* data
);
1416 extern int drm_gem_name_info(struct seq_file
*m
, void *data
);
1417 extern int drm_gem_object_info(struct seq_file
*m
, void* data
);
1420 extern int drm_vma_info(struct seq_file
*m
, void *data
);
1423 /* Scatter Gather Support (drm_scatter.h) */
1424 extern void drm_sg_cleanup(struct drm_sg_mem
* entry
);
1425 extern int drm_sg_alloc_ioctl(struct drm_device
*dev
, void *data
,
1426 struct drm_file
*file_priv
);
1427 extern int drm_sg_alloc(struct drm_device
*dev
, struct drm_scatter_gather
* request
);
1428 extern int drm_sg_free(struct drm_device
*dev
, void *data
,
1429 struct drm_file
*file_priv
);
1431 /* ATI PCIGART support (ati_pcigart.h) */
1432 extern int drm_ati_pcigart_init(struct drm_device
*dev
,
1433 struct drm_ati_pcigart_info
* gart_info
);
1434 extern int drm_ati_pcigart_cleanup(struct drm_device
*dev
,
1435 struct drm_ati_pcigart_info
* gart_info
);
1437 extern drm_dma_handle_t
*drm_pci_alloc(struct drm_device
*dev
, size_t size
,
1439 extern void __drm_pci_free(struct drm_device
*dev
, drm_dma_handle_t
* dmah
);
1440 extern void drm_pci_free(struct drm_device
*dev
, drm_dma_handle_t
* dmah
);
1442 /* sysfs support (drm_sysfs.c) */
1443 struct drm_sysfs_class
;
1444 extern struct class *drm_sysfs_create(struct module
*owner
, char *name
);
1445 extern void drm_sysfs_destroy(void);
1446 extern int drm_sysfs_device_add(struct drm_minor
*minor
);
1447 extern void drm_sysfs_hotplug_event(struct drm_device
*dev
);
1448 extern void drm_sysfs_device_remove(struct drm_minor
*minor
);
1449 extern char *drm_get_connector_status_name(enum drm_connector_status status
);
1450 extern int drm_sysfs_connector_add(struct drm_connector
*connector
);
1451 extern void drm_sysfs_connector_remove(struct drm_connector
*connector
);
1453 /* Graphics Execution Manager library functions (drm_gem.c) */
1454 int drm_gem_init(struct drm_device
*dev
);
1455 void drm_gem_destroy(struct drm_device
*dev
);
1456 void drm_gem_object_release(struct drm_gem_object
*obj
);
1457 void drm_gem_object_free(struct kref
*kref
);
1458 struct drm_gem_object
*drm_gem_object_alloc(struct drm_device
*dev
,
1460 int drm_gem_object_init(struct drm_device
*dev
,
1461 struct drm_gem_object
*obj
, size_t size
);
1462 void drm_gem_object_handle_free(struct drm_gem_object
*obj
);
1463 void drm_gem_vm_open(struct vm_area_struct
*vma
);
1464 void drm_gem_vm_close(struct vm_area_struct
*vma
);
1465 int drm_gem_mmap(struct file
*filp
, struct vm_area_struct
*vma
);
1467 #include "drm_global.h"
1470 drm_gem_object_reference(struct drm_gem_object
*obj
)
1472 kref_get(&obj
->refcount
);
1476 drm_gem_object_unreference(struct drm_gem_object
*obj
)
1479 kref_put(&obj
->refcount
, drm_gem_object_free
);
1483 drm_gem_object_unreference_unlocked(struct drm_gem_object
*obj
)
1486 struct drm_device
*dev
= obj
->dev
;
1487 mutex_lock(&dev
->struct_mutex
);
1488 kref_put(&obj
->refcount
, drm_gem_object_free
);
1489 mutex_unlock(&dev
->struct_mutex
);
1493 int drm_gem_handle_create(struct drm_file
*file_priv
,
1494 struct drm_gem_object
*obj
,
1498 drm_gem_object_handle_reference(struct drm_gem_object
*obj
)
1500 drm_gem_object_reference(obj
);
1501 atomic_inc(&obj
->handle_count
);
1505 drm_gem_object_handle_unreference(struct drm_gem_object
*obj
)
1510 if (atomic_read(&obj
->handle_count
) == 0)
1513 * Must bump handle count first as this may be the last
1514 * ref, in which case the object would disappear before we
1515 * checked for a name
1517 if (atomic_dec_and_test(&obj
->handle_count
))
1518 drm_gem_object_handle_free(obj
);
1519 drm_gem_object_unreference(obj
);
1523 drm_gem_object_handle_unreference_unlocked(struct drm_gem_object
*obj
)
1528 if (atomic_read(&obj
->handle_count
) == 0)
1532 * Must bump handle count first as this may be the last
1533 * ref, in which case the object would disappear before we
1534 * checked for a name
1537 if (atomic_dec_and_test(&obj
->handle_count
))
1538 drm_gem_object_handle_free(obj
);
1539 drm_gem_object_unreference_unlocked(obj
);
1542 struct drm_gem_object
*drm_gem_object_lookup(struct drm_device
*dev
,
1543 struct drm_file
*filp
,
1545 int drm_gem_close_ioctl(struct drm_device
*dev
, void *data
,
1546 struct drm_file
*file_priv
);
1547 int drm_gem_flink_ioctl(struct drm_device
*dev
, void *data
,
1548 struct drm_file
*file_priv
);
1549 int drm_gem_open_ioctl(struct drm_device
*dev
, void *data
,
1550 struct drm_file
*file_priv
);
1551 void drm_gem_open(struct drm_device
*dev
, struct drm_file
*file_private
);
1552 void drm_gem_release(struct drm_device
*dev
, struct drm_file
*file_private
);
1554 extern void drm_core_ioremap(struct drm_local_map
*map
, struct drm_device
*dev
);
1555 extern void drm_core_ioremap_wc(struct drm_local_map
*map
, struct drm_device
*dev
);
1556 extern void drm_core_ioremapfree(struct drm_local_map
*map
, struct drm_device
*dev
);
1558 static __inline__
struct drm_local_map
*drm_core_findmap(struct drm_device
*dev
,
1561 struct drm_map_list
*_entry
;
1562 list_for_each_entry(_entry
, &dev
->maplist
, head
)
1563 if (_entry
->user_token
== token
)
1568 static __inline__
int drm_device_is_agp(struct drm_device
*dev
)
1570 if (drm_core_check_feature(dev
, DRIVER_USE_PLATFORM_DEVICE
))
1573 if (dev
->driver
->device_is_agp
!= NULL
) {
1574 int err
= (*dev
->driver
->device_is_agp
) (dev
);
1581 return pci_find_capability(dev
->pdev
, PCI_CAP_ID_AGP
);
1584 static __inline__
int drm_device_is_pcie(struct drm_device
*dev
)
1586 if (drm_core_check_feature(dev
, DRIVER_USE_PLATFORM_DEVICE
))
1589 return pci_find_capability(dev
->pdev
, PCI_CAP_ID_EXP
);
1592 static __inline__
void drm_core_dropmap(struct drm_local_map
*map
)
1596 #include "drm_mem_util.h"
1598 static inline void *drm_get_device(struct drm_device
*dev
)
1600 if (drm_core_check_feature(dev
, DRIVER_USE_PLATFORM_DEVICE
))
1601 return dev
->platformdev
;
1606 extern int drm_platform_init(struct drm_driver
*driver
);
1607 extern int drm_pci_init(struct drm_driver
*driver
);
1608 extern int drm_fill_in_dev(struct drm_device
*dev
,
1609 const struct pci_device_id
*ent
,
1610 struct drm_driver
*driver
);
1611 int drm_get_minor(struct drm_device
*dev
, struct drm_minor
**minor
, int type
);
1614 #endif /* __KERNEL__ */