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 * All rights reserved.
14 * Permission is hereby granted, free of charge, to any person obtaining a
15 * copy of this software and associated documentation files (the "Software"),
16 * to deal in the Software without restriction, including without limitation
17 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
18 * and/or sell copies of the Software, and to permit persons to whom the
19 * Software is furnished to do so, subject to the following conditions:
21 * The above copyright notice and this permission notice (including the next
22 * paragraph) shall be included in all copies or substantial portions of the
25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
26 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
27 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
28 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
29 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
30 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
31 * OTHER DEALINGS IN THE SOFTWARE.
39 /* add include of current.h so that "current" is defined
40 * before static inline funcs in wait.h. Doing this so we
41 * can build the DRM (part of PI DRI). 4/21/2000 S + B */
42 #include <asm/current.h>
43 #endif /* __alpha__ */
44 #include <linux/module.h>
45 #include <linux/kernel.h>
46 #include <linux/miscdevice.h>
48 #include <linux/proc_fs.h>
49 #include <linux/init.h>
50 #include <linux/file.h>
51 #include <linux/pci.h>
52 #include <linux/jiffies.h>
53 #include <linux/smp_lock.h> /* For (un)lock_kernel */
54 #include <linux/dma-mapping.h>
56 #include <linux/cdev.h>
57 #include <linux/mutex.h>
58 #if defined(__alpha__) || defined(__powerpc__)
59 #include <asm/pgtable.h> /* For pte_wrprotect */
63 #include <asm/uaccess.h>
67 #if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
68 #include <linux/types.h>
69 #include <linux/agp_backend.h>
71 #include <linux/workqueue.h>
72 #include <linux/poll.h>
73 #include <asm/pgalloc.h>
76 #include <linux/idr.h>
78 #define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE)))
79 #define __OS_HAS_MTRR (defined(CONFIG_MTRR))
84 #include "drm_os_linux.h"
85 #include "drm_hashtab.h"
88 #define DRM_UT_CORE 0x01
89 #define DRM_UT_DRIVER 0x02
90 #define DRM_UT_KMS 0x04
92 * Three debug levels are defined.
93 * drm_core, drm_driver, drm_kms
94 * drm_core level can be used in the generic drm code. For example:
95 * drm_ioctl, drm_mm, drm_memory
96 * The macro definiton of DRM_DEBUG is used.
97 * DRM_DEBUG(fmt, args...)
98 * The debug info by using the DRM_DEBUG can be obtained by adding
99 * the boot option of "drm.debug=1".
101 * drm_driver level can be used in the specific drm driver. It is used
102 * to add the debug info related with the drm driver. For example:
103 * i915_drv, i915_dma, i915_gem, radeon_drv,
104 * The macro definition of DRM_DEBUG_DRIVER can be used.
105 * DRM_DEBUG_DRIVER(fmt, args...)
106 * The debug info by using the DRM_DEBUG_DRIVER can be obtained by
107 * adding the boot option of "drm.debug=0x02"
109 * drm_kms level can be used in the KMS code related with specific drm driver.
110 * It is used to add the debug info related with KMS mode. For example:
111 * the connector/crtc ,
112 * The macro definition of DRM_DEBUG_KMS can be used.
113 * DRM_DEBUG_KMS(fmt, args...)
114 * The debug info by using the DRM_DEBUG_KMS can be obtained by
115 * adding the boot option of "drm.debug=0x04"
117 * If we add the boot option of "drm.debug=0x06", we can get the debug info by
118 * using the DRM_DEBUG_KMS and DRM_DEBUG_DRIVER.
119 * If we add the boot option of "drm.debug=0x05", we can get the debug info by
120 * using the DRM_DEBUG_KMS and DRM_DEBUG.
123 extern void drm_ut_debug_printk(unsigned int request_level
,
125 const char *function_name
,
126 const char *format
, ...);
127 /***********************************************************************/
128 /** \name DRM template customization defaults */
131 /* driver capabilities and requirements mask */
132 #define DRIVER_USE_AGP 0x1
133 #define DRIVER_REQUIRE_AGP 0x2
134 #define DRIVER_USE_MTRR 0x4
135 #define DRIVER_PCI_DMA 0x8
136 #define DRIVER_SG 0x10
137 #define DRIVER_HAVE_DMA 0x20
138 #define DRIVER_HAVE_IRQ 0x40
139 #define DRIVER_IRQ_SHARED 0x80
140 #define DRIVER_IRQ_VBL 0x100
141 #define DRIVER_DMA_QUEUE 0x200
142 #define DRIVER_FB_DMA 0x400
143 #define DRIVER_IRQ_VBL2 0x800
144 #define DRIVER_GEM 0x1000
145 #define DRIVER_MODESET 0x2000
147 /***********************************************************************/
148 /** \name Begin the DRM... */
151 #define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then
152 also include looping detection. */
154 #define DRM_MAGIC_HASH_ORDER 4 /**< Size of key hash table. Must be power of 2. */
155 #define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */
156 #define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */
157 #define DRM_LOOPING_LIMIT 5000000
158 #define DRM_TIME_SLICE (HZ/20) /**< Time slice for GLXContexts */
159 #define DRM_LOCK_SLICE 1 /**< Time slice for lock, in jiffies */
161 #define DRM_FLAG_DEBUG 0x01
163 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
164 #define DRM_MAP_HASH_OFFSET 0x10000000
168 /***********************************************************************/
169 /** \name Macros to make printk easier */
175 * \param fmt printf() like format string.
176 * \param arg arguments
178 #define DRM_ERROR(fmt, arg...) \
179 printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* " fmt , __func__ , ##arg)
182 * Memory error output.
184 * \param area memory area where the error occurred.
185 * \param fmt printf() like format string.
186 * \param arg arguments
188 #define DRM_MEM_ERROR(area, fmt, arg...) \
189 printk(KERN_ERR "[" DRM_NAME ":%s:%s] *ERROR* " fmt , __func__, \
190 drm_mem_stats[area].name , ##arg)
192 #define DRM_INFO(fmt, arg...) printk(KERN_INFO "[" DRM_NAME "] " fmt , ##arg)
197 * \param fmt printf() like format string.
198 * \param arg arguments
201 #define DRM_DEBUG(fmt, args...) \
203 drm_ut_debug_printk(DRM_UT_CORE, DRM_NAME, \
204 __func__, fmt, ##args); \
207 #define DRM_DEBUG_DRIVER(fmt, args...) \
209 drm_ut_debug_printk(DRM_UT_DRIVER, DRM_NAME, \
210 __func__, fmt, ##args); \
212 #define DRM_DEBUG_KMS(fmt, args...) \
214 drm_ut_debug_printk(DRM_UT_KMS, DRM_NAME, \
215 __func__, fmt, ##args); \
217 #define DRM_LOG(fmt, args...) \
219 drm_ut_debug_printk(DRM_UT_CORE, NULL, \
220 NULL, fmt, ##args); \
222 #define DRM_LOG_KMS(fmt, args...) \
224 drm_ut_debug_printk(DRM_UT_KMS, NULL, \
225 NULL, fmt, ##args); \
227 #define DRM_LOG_MODE(fmt, args...) \
229 drm_ut_debug_printk(DRM_UT_MODE, NULL, \
230 NULL, fmt, ##args); \
232 #define DRM_LOG_DRIVER(fmt, args...) \
234 drm_ut_debug_printk(DRM_UT_DRIVER, NULL, \
235 NULL, fmt, ##args); \
238 #define DRM_DEBUG_DRIVER(fmt, args...) do { } while (0)
239 #define DRM_DEBUG_KMS(fmt, args...) do { } while (0)
240 #define DRM_DEBUG(fmt, arg...) do { } while (0)
241 #define DRM_LOG(fmt, arg...) do { } while (0)
242 #define DRM_LOG_KMS(fmt, args...) do { } while (0)
243 #define DRM_LOG_MODE(fmt, arg...) do { } while (0)
244 #define DRM_LOG_DRIVER(fmt, arg...) do { } while (0)
248 #define DRM_PROC_LIMIT (PAGE_SIZE-80)
250 #define DRM_PROC_PRINT(fmt, arg...) \
251 len += sprintf(&buf[len], fmt , ##arg); \
252 if (len > DRM_PROC_LIMIT) { *eof = 1; return len - offset; }
254 #define DRM_PROC_PRINT_RET(ret, fmt, arg...) \
255 len += sprintf(&buf[len], fmt , ##arg); \
256 if (len > DRM_PROC_LIMIT) { ret; *eof = 1; return len - offset; }
260 /***********************************************************************/
261 /** \name Internal types and structures */
264 #define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x)
266 #define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
267 #define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
268 #define DRM_WAITCOUNT(dev,idx) DRM_BUFCOUNT(&dev->queuelist[idx]->waitlist)
270 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
272 * Get the private SAREA mapping.
274 * \param _dev DRM device.
275 * \param _ctx context number.
276 * \param _map output mapping.
278 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
279 (_map) = (_dev)->context_sareas[_ctx]; \
283 * Test that the hardware lock is held by the caller, returning otherwise.
285 * \param dev DRM device.
286 * \param filp file pointer of the caller.
288 #define LOCK_TEST_WITH_RETURN( dev, _file_priv ) \
290 if (!_DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock) || \
291 _file_priv->master->lock.file_priv != _file_priv) { \
292 DRM_ERROR( "%s called without lock held, held %d owner %p %p\n",\
293 __func__, _DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock),\
294 _file_priv->master->lock.file_priv, _file_priv); \
300 * Copy and IOCTL return string to user space
302 #define DRM_COPY( name, value ) \
303 len = strlen( value ); \
304 if ( len > name##_len ) len = name##_len; \
305 name##_len = strlen( value ); \
306 if ( len && name ) { \
307 if ( copy_to_user( name, value, len ) ) \
312 * Ioctl function type.
314 * \param inode device inode.
315 * \param file_priv DRM file private pointer.
316 * \param cmd command.
317 * \param arg argument.
319 typedef int drm_ioctl_t(struct drm_device
*dev
, void *data
,
320 struct drm_file
*file_priv
);
322 typedef int drm_ioctl_compat_t(struct file
*filp
, unsigned int cmd
,
326 #define DRM_MASTER 0x2
327 #define DRM_ROOT_ONLY 0x4
328 #define DRM_CONTROL_ALLOW 0x8
330 struct drm_ioctl_desc
{
337 * Creates a driver or general drm_ioctl_desc array entry for the given
338 * ioctl, for use by drm_ioctl().
340 #define DRM_IOCTL_DEF(ioctl, _func, _flags) \
341 [DRM_IOCTL_NR(ioctl)] = {.cmd = ioctl, .func = _func, .flags = _flags}
343 struct drm_magic_entry
{
344 struct list_head head
;
345 struct drm_hash_item hash_item
;
346 struct drm_file
*priv
;
349 struct drm_vma_entry
{
350 struct list_head head
;
351 struct vm_area_struct
*vma
;
359 int idx
; /**< Index into master buflist */
360 int total
; /**< Buffer size */
361 int order
; /**< log-base-2(total) */
362 int used
; /**< Amount of buffer in use (for DMA) */
363 unsigned long offset
; /**< Byte offset (used internally) */
364 void *address
; /**< Address of buffer */
365 unsigned long bus_address
; /**< Bus address of buffer */
366 struct drm_buf
*next
; /**< Kernel-only: used for free list */
367 __volatile__
int waiting
; /**< On kernel DMA queue */
368 __volatile__
int pending
; /**< On hardware DMA queue */
369 wait_queue_head_t dma_wait
; /**< Processes waiting */
370 struct drm_file
*file_priv
; /**< Private of holding file descr */
371 int context
; /**< Kernel queue for this buffer */
372 int while_locked
; /**< Dispatch this buffer while locked */
380 } list
; /**< Which list we're on */
382 int dev_priv_size
; /**< Size of buffer private storage */
383 void *dev_private
; /**< Per-buffer private storage */
386 /** bufs is one longer than it has to be */
387 struct drm_waitlist
{
388 int count
; /**< Number of possible buffers */
389 struct drm_buf
**bufs
; /**< List of pointers to buffers */
390 struct drm_buf
**rp
; /**< Read pointer */
391 struct drm_buf
**wp
; /**< Write pointer */
392 struct drm_buf
**end
; /**< End pointer */
393 spinlock_t read_lock
;
394 spinlock_t write_lock
;
397 struct drm_freelist
{
398 int initialized
; /**< Freelist in use */
399 atomic_t count
; /**< Number of free buffers */
400 struct drm_buf
*next
; /**< End pointer */
402 wait_queue_head_t waiting
; /**< Processes waiting on free bufs */
403 int low_mark
; /**< Low water mark */
404 int high_mark
; /**< High water mark */
405 atomic_t wfh
; /**< If waiting for high mark */
409 typedef struct drm_dma_handle
{
416 * Buffer entry. There is one of this for each buffer size order.
418 struct drm_buf_entry
{
419 int buf_size
; /**< size */
420 int buf_count
; /**< number of buffers */
421 struct drm_buf
*buflist
; /**< buffer list */
424 struct drm_dma_handle
**seglist
;
426 struct drm_freelist freelist
;
429 /* Event queued up for userspace to read */
430 struct drm_pending_event
{
431 struct drm_event
*event
;
432 struct list_head link
;
433 struct drm_file
*file_priv
;
434 void (*destroy
)(struct drm_pending_event
*event
);
437 /** File private data */
443 unsigned long ioctl_count
;
444 struct list_head lhead
;
445 struct drm_minor
*minor
;
446 unsigned long lock_count
;
448 /** Mapping of mm object handles to object pointers. */
449 struct idr object_idr
;
450 /** Lock for synchronization of access to object_idr. */
451 spinlock_t table_lock
;
456 int is_master
; /* this file private is a master for a minor */
457 struct drm_master
*master
; /* master this node is currently associated with
458 N.B. not always minor->master */
459 struct list_head fbs
;
461 wait_queue_head_t event_wait
;
462 struct list_head event_list
;
468 atomic_t use_count
; /**< Outstanding uses (+1) */
469 atomic_t finalization
; /**< Finalization in progress */
470 atomic_t block_count
; /**< Count of processes waiting */
471 atomic_t block_read
; /**< Queue blocked for reads */
472 wait_queue_head_t read_queue
; /**< Processes waiting on block_read */
473 atomic_t block_write
; /**< Queue blocked for writes */
474 wait_queue_head_t write_queue
; /**< Processes waiting on block_write */
475 atomic_t total_queued
; /**< Total queued statistic */
476 atomic_t total_flushed
; /**< Total flushes statistic */
477 atomic_t total_locks
; /**< Total locks statistics */
478 enum drm_ctx_flags flags
; /**< Context preserving and 2D-only */
479 struct drm_waitlist waitlist
; /**< Pending buffers */
480 wait_queue_head_t flush_queue
; /**< Processes waiting until flush */
486 struct drm_lock_data
{
487 struct drm_hw_lock
*hw_lock
; /**< Hardware lock */
488 /** Private of lock holder's file (NULL=kernel) */
489 struct drm_file
*file_priv
;
490 wait_queue_head_t lock_queue
; /**< Queue of blocked processes */
491 unsigned long lock_time
; /**< Time of last lock in jiffies */
493 uint32_t kernel_waiters
;
494 uint32_t user_waiters
;
501 struct drm_device_dma
{
503 struct drm_buf_entry bufs
[DRM_MAX_ORDER
+ 1]; /**< buffers, grouped by their size order */
504 int buf_count
; /**< total number of buffers */
505 struct drm_buf
**buflist
; /**< Vector of pointers into drm_device_dma::bufs */
507 int page_count
; /**< number of pages */
508 unsigned long *pagelist
; /**< page list */
509 unsigned long byte_count
;
511 _DRM_DMA_USE_AGP
= 0x01,
512 _DRM_DMA_USE_SG
= 0x02,
513 _DRM_DMA_USE_FB
= 0x04,
514 _DRM_DMA_USE_PCI_RO
= 0x08
520 * AGP memory entry. Stored as a doubly linked list.
523 unsigned long handle
; /**< handle */
525 unsigned long bound
; /**< address */
527 struct list_head head
;
533 * \sa drm_agp_init() and drm_device::agp.
535 struct drm_agp_head
{
536 DRM_AGP_KERN agp_info
; /**< AGP device information */
537 struct list_head memory
;
538 unsigned long mode
; /**< AGP mode */
539 struct agp_bridge_data
*bridge
;
540 int enabled
; /**< whether the AGP bus as been enabled */
541 int acquired
; /**< whether the AGP device has been acquired */
544 int cant_use_aperture
;
545 unsigned long page_mask
;
549 * Scatter-gather memory.
552 unsigned long handle
;
555 struct page
**pagelist
;
561 struct drm_hw_lock
*lock
;
566 * Kernel side of a mapping
568 struct drm_local_map
{
569 resource_size_t offset
; /**< Requested physical address (0 for SAREA)*/
570 unsigned long size
; /**< Requested physical size (bytes) */
571 enum drm_map_type type
; /**< Type of memory to map */
572 enum drm_map_flags flags
; /**< Flags */
573 void *handle
; /**< User-space: "Handle" to pass to mmap() */
574 /**< Kernel-space: kernel-virtual address */
575 int mtrr
; /**< MTRR slot used */
578 typedef struct drm_local_map drm_local_map_t
;
583 struct drm_map_list
{
584 struct list_head head
; /**< list head */
585 struct drm_hash_item hash
;
586 struct drm_local_map
*map
; /**< mapping */
588 struct drm_master
*master
;
589 struct drm_mm_node
*file_offset_node
; /**< fake offset */
593 * Context handle list
595 struct drm_ctx_list
{
596 struct list_head head
; /**< list head */
597 drm_context_t handle
; /**< context handle */
598 struct drm_file
*tag
; /**< associated fd private data */
601 /* location of GART table */
602 #define DRM_ATI_GART_MAIN 1
603 #define DRM_ATI_GART_FB 2
605 #define DRM_ATI_GART_PCI 1
606 #define DRM_ATI_GART_PCIE 2
607 #define DRM_ATI_GART_IGP 3
609 struct drm_ati_pcigart_info
{
610 int gart_table_location
;
614 dma_addr_t table_mask
;
615 struct drm_dma_handle
*table_handle
;
616 struct drm_local_map mapping
;
621 * GEM specific mm private for tracking GEM objects
624 struct drm_mm offset_manager
; /**< Offset mgmt for buffer objects */
625 struct drm_open_hash offset_hash
; /**< User token hash table for maps */
629 * This structure defines the drm_mm memory object, which will be used by the
630 * DRM for its buffer objects.
632 struct drm_gem_object
{
633 /** Reference count of this object */
634 struct kref refcount
;
636 /** Handle count of this object. Each handle also holds a reference */
637 struct kref handlecount
;
639 /** Related drm device */
640 struct drm_device
*dev
;
642 /** File representing the shmem storage */
645 /* Mapping info for this object */
646 struct drm_map_list map_list
;
649 * Size of the object, in bytes. Immutable over the object's
655 * Global name for this object, starts at 1. 0 means unnamed.
656 * Access is covered by the object_name_lock in the related drm_device
661 * Memory domains. These monitor which caches contain read/write data
662 * related to the object. When transitioning from one set of domains
663 * to another, the driver is called to ensure that caches are suitably
664 * flushed and invalidated
666 uint32_t read_domains
;
667 uint32_t write_domain
;
670 * While validating an exec operation, the
671 * new read/write domain values are computed here.
672 * They will be transferred to the above values
673 * at the point that any cache flushing occurs
675 uint32_t pending_read_domains
;
676 uint32_t pending_write_domain
;
678 void *driver_private
;
681 #include "drm_crtc.h"
683 /* per-master structure */
686 struct kref refcount
; /* refcount for this master */
688 struct list_head head
; /**< each minor contains a list of masters */
689 struct drm_minor
*minor
; /**< link back to minor we are a master for */
691 char *unique
; /**< Unique identifier: e.g., busid */
692 int unique_len
; /**< Length of unique field */
693 int unique_size
; /**< amount allocated */
695 int blocked
; /**< Blocked due to VC switch? */
697 /** \name Authentication */
699 struct drm_open_hash magiclist
;
700 struct list_head magicfree
;
703 struct drm_lock_data lock
; /**< Information on hardware lock */
705 void *driver_priv
; /**< Private structure for driver to use */
709 * DRM driver structure. This structure represent the common code for
710 * a family of cards. There will one drm_device for each card present
714 int (*load
) (struct drm_device
*, unsigned long flags
);
715 int (*firstopen
) (struct drm_device
*);
716 int (*open
) (struct drm_device
*, struct drm_file
*);
717 void (*preclose
) (struct drm_device
*, struct drm_file
*file_priv
);
718 void (*postclose
) (struct drm_device
*, struct drm_file
*);
719 void (*lastclose
) (struct drm_device
*);
720 int (*unload
) (struct drm_device
*);
721 int (*suspend
) (struct drm_device
*, pm_message_t state
);
722 int (*resume
) (struct drm_device
*);
723 int (*dma_ioctl
) (struct drm_device
*dev
, void *data
, struct drm_file
*file_priv
);
724 void (*dma_ready
) (struct drm_device
*);
725 int (*dma_quiescent
) (struct drm_device
*);
726 int (*context_ctor
) (struct drm_device
*dev
, int context
);
727 int (*context_dtor
) (struct drm_device
*dev
, int context
);
728 int (*kernel_context_switch
) (struct drm_device
*dev
, int old
,
730 void (*kernel_context_switch_unlock
) (struct drm_device
*dev
);
733 * get_vblank_counter - get raw hardware vblank counter
735 * @crtc: counter to fetch
737 * Driver callback for fetching a raw hardware vblank counter
738 * for @crtc. If a device doesn't have a hardware counter, the
739 * driver can simply return the value of drm_vblank_count and
740 * make the enable_vblank() and disable_vblank() hooks into no-ops,
741 * leaving interrupts enabled at all times.
743 * Wraparound handling and loss of events due to modesetting is dealt
744 * with in the DRM core code.
747 * Raw vblank counter value.
749 u32 (*get_vblank_counter
) (struct drm_device
*dev
, int crtc
);
752 * enable_vblank - enable vblank interrupt events
754 * @crtc: which irq to enable
756 * Enable vblank interrupts for @crtc. If the device doesn't have
757 * a hardware vblank counter, this routine should be a no-op, since
758 * interrupts will have to stay on to keep the count accurate.
761 * Zero on success, appropriate errno if the given @crtc's vblank
762 * interrupt cannot be enabled.
764 int (*enable_vblank
) (struct drm_device
*dev
, int crtc
);
767 * disable_vblank - disable vblank interrupt events
769 * @crtc: which irq to enable
771 * Disable vblank interrupts for @crtc. If the device doesn't have
772 * a hardware vblank counter, this routine should be a no-op, since
773 * interrupts will have to stay on to keep the count accurate.
775 void (*disable_vblank
) (struct drm_device
*dev
, int crtc
);
778 * Called by \c drm_device_is_agp. Typically used to determine if a
779 * card is really attached to AGP or not.
781 * \param dev DRM device handle
784 * One of three values is returned depending on whether or not the
785 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
786 * (return of 1), or may or may not be AGP (return of 2).
788 int (*device_is_agp
) (struct drm_device
*dev
);
790 /* these have to be filled in */
792 irqreturn_t(*irq_handler
) (DRM_IRQ_ARGS
);
793 void (*irq_preinstall
) (struct drm_device
*dev
);
794 int (*irq_postinstall
) (struct drm_device
*dev
);
795 void (*irq_uninstall
) (struct drm_device
*dev
);
796 void (*reclaim_buffers
) (struct drm_device
*dev
,
797 struct drm_file
* file_priv
);
798 void (*reclaim_buffers_locked
) (struct drm_device
*dev
,
799 struct drm_file
*file_priv
);
800 void (*reclaim_buffers_idlelocked
) (struct drm_device
*dev
,
801 struct drm_file
*file_priv
);
802 resource_size_t (*get_map_ofs
) (struct drm_local_map
* map
);
803 resource_size_t (*get_reg_ofs
) (struct drm_device
*dev
);
804 void (*set_version
) (struct drm_device
*dev
,
805 struct drm_set_version
*sv
);
807 /* Master routines */
808 int (*master_create
)(struct drm_device
*dev
, struct drm_master
*master
);
809 void (*master_destroy
)(struct drm_device
*dev
, struct drm_master
*master
);
811 int (*proc_init
)(struct drm_minor
*minor
);
812 void (*proc_cleanup
)(struct drm_minor
*minor
);
813 int (*debugfs_init
)(struct drm_minor
*minor
);
814 void (*debugfs_cleanup
)(struct drm_minor
*minor
);
817 * Driver-specific constructor for drm_gem_objects, to set up
818 * obj->driver_private.
820 * Returns 0 on success.
822 int (*gem_init_object
) (struct drm_gem_object
*obj
);
823 void (*gem_free_object
) (struct drm_gem_object
*obj
);
825 /* vga arb irq handler */
826 void (*vgaarb_irq
)(struct drm_device
*dev
, bool state
);
828 /* Driver private ops for this object */
829 struct vm_operations_struct
*gem_vm_ops
;
840 struct drm_ioctl_desc
*ioctls
;
842 struct file_operations fops
;
843 struct pci_driver pci_driver
;
844 /* List of devices hanging off this driver */
845 struct list_head device_list
;
848 #define DRM_MINOR_UNASSIGNED 0
849 #define DRM_MINOR_LEGACY 1
850 #define DRM_MINOR_CONTROL 2
851 #define DRM_MINOR_RENDER 3
855 * debugfs node list. This structure represents a debugfs file to
856 * be created by the drm core
858 struct drm_debugfs_list
{
859 const char *name
; /** file name */
860 int (*show
)(struct seq_file
*, void*); /** show callback */
861 u32 driver_features
; /**< Required driver features for this entry */
865 * debugfs node structure. This structure represents a debugfs file.
867 struct drm_debugfs_node
{
868 struct list_head list
;
869 struct drm_minor
*minor
;
870 struct drm_debugfs_list
*debugfs_ent
;
875 * Info file list entry. This structure represents a debugfs or proc file to
876 * be created by the drm core
878 struct drm_info_list
{
879 const char *name
; /** file name */
880 int (*show
)(struct seq_file
*, void*); /** show callback */
881 u32 driver_features
; /**< Required driver features for this entry */
886 * debugfs node structure. This structure represents a debugfs file.
888 struct drm_info_node
{
889 struct list_head list
;
890 struct drm_minor
*minor
;
891 struct drm_info_list
*info_ent
;
896 * DRM minor structure. This structure represents a drm minor number.
899 int index
; /**< Minor device number */
900 int type
; /**< Control or render */
901 dev_t device
; /**< Device number for mknod */
902 struct device kdev
; /**< Linux device */
903 struct drm_device
*dev
;
905 struct proc_dir_entry
*proc_root
; /**< proc directory entry */
906 struct drm_info_node proc_nodes
;
907 struct dentry
*debugfs_root
;
908 struct drm_info_node debugfs_nodes
;
910 struct drm_master
*master
; /* currently active master for this node */
911 struct list_head master_list
;
912 struct drm_mode_group mode_group
;
915 struct drm_pending_vblank_event
{
916 struct drm_pending_event base
;
918 struct drm_event_vblank event
;
922 * DRM device structure. This structure represent a complete card that
923 * may contain multiple heads.
926 struct list_head driver_item
; /**< list of devices per driver */
927 char *devname
; /**< For /proc/interrupts */
928 int if_version
; /**< Highest interface version set */
932 spinlock_t count_lock
; /**< For inuse, drm_device::open_count, drm_device::buf_use */
933 struct mutex struct_mutex
; /**< For others */
936 /** \name Usage Counters */
938 int open_count
; /**< Outstanding files open */
939 atomic_t ioctl_count
; /**< Outstanding IOCTLs pending */
940 atomic_t vma_count
; /**< Outstanding vma areas open */
941 int buf_use
; /**< Buffers in use -- cannot alloc */
942 atomic_t buf_alloc
; /**< Buffer allocation in progress */
945 /** \name Performance counters */
947 unsigned long counters
;
948 enum drm_stat_type types
[15];
952 struct list_head filelist
;
954 /** \name Memory management */
956 struct list_head maplist
; /**< Linked list of regions */
957 int map_count
; /**< Number of mappable regions */
958 struct drm_open_hash map_hash
; /**< User token hash table for maps */
960 /** \name Context handle management */
962 struct list_head ctxlist
; /**< Linked list of context handles */
963 int ctx_count
; /**< Number of context handles */
964 struct mutex ctxlist_mutex
; /**< For ctxlist */
968 struct list_head vmalist
; /**< List of vmas (for debugging) */
972 /** \name DMA queues (contexts) */
974 int queue_count
; /**< Number of active DMA queues */
975 int queue_reserved
; /**< Number of reserved DMA queues */
976 int queue_slots
; /**< Actual length of queuelist */
977 struct drm_queue
**queuelist
; /**< Vector of pointers to DMA queues */
978 struct drm_device_dma
*dma
; /**< Optional pointer for DMA support */
981 /** \name Context support */
983 int irq_enabled
; /**< True if irq handler is enabled */
984 __volatile__
long context_flag
; /**< Context swapping flag */
985 __volatile__
long interrupt_flag
; /**< Interruption handler flag */
986 __volatile__
long dma_flag
; /**< DMA dispatch flag */
987 struct timer_list timer
; /**< Timer for delaying ctx switch */
988 wait_queue_head_t context_wait
; /**< Processes waiting on ctx switch */
989 int last_checked
; /**< Last context checked for DMA */
990 int last_context
; /**< Last current context */
991 unsigned long last_switch
; /**< jiffies at last context switch */
994 struct work_struct work
;
995 /** \name VBLANK IRQ support */
999 * At load time, disabling the vblank interrupt won't be allowed since
1000 * old clients may not call the modeset ioctl and therefore misbehave.
1001 * Once the modeset ioctl *has* been called though, we can safely
1002 * disable them when unused.
1004 int vblank_disable_allowed
;
1006 wait_queue_head_t
*vbl_queue
; /**< VBLANK wait queue */
1007 atomic_t
*_vblank_count
; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */
1008 spinlock_t vbl_lock
;
1009 atomic_t
*vblank_refcount
; /* number of users of vblank interruptsper crtc */
1010 u32
*last_vblank
; /* protected by dev->vbl_lock, used */
1011 /* for wraparound handling */
1012 int *vblank_enabled
; /* so we don't call enable more than
1014 int *vblank_inmodeset
; /* Display driver is setting mode */
1015 u32
*last_vblank_wait
; /* Last vblank seqno waited per CRTC */
1016 struct timer_list vblank_disable_timer
;
1018 u32 max_vblank_count
; /**< size of vblank counter register */
1023 struct list_head vblank_event_list
;
1024 spinlock_t event_lock
;
1030 struct fasync_struct
*buf_async
;/**< Processes waiting for SIGIO */
1031 wait_queue_head_t buf_readers
; /**< Processes waiting to read */
1032 wait_queue_head_t buf_writers
; /**< Processes waiting to ctx switch */
1034 struct drm_agp_head
*agp
; /**< AGP data */
1036 struct pci_dev
*pdev
; /**< PCI device structure */
1037 int pci_vendor
; /**< PCI vendor id */
1038 int pci_device
; /**< PCI device id */
1040 struct pci_controller
*hose
;
1042 struct drm_sg_mem
*sg
; /**< Scatter gather memory */
1043 int num_crtcs
; /**< Number of CRTCs on this device */
1044 void *dev_private
; /**< device private data */
1046 struct address_space
*dev_mapping
;
1047 struct drm_sigdata sigdata
; /**< For block_all_signals */
1050 struct drm_driver
*driver
;
1051 struct drm_local_map
*agp_buffer_map
;
1052 unsigned int agp_buffer_token
;
1053 struct drm_minor
*control
; /**< Control node for card */
1054 struct drm_minor
*primary
; /**< render type primary screen head */
1056 /** \name Drawable information */
1058 spinlock_t drw_lock
;
1062 struct drm_mode_config mode_config
; /**< Current mode config */
1064 /** \name GEM information */
1066 spinlock_t object_name_lock
;
1067 struct idr object_name_idr
;
1068 atomic_t object_count
;
1069 atomic_t object_memory
;
1071 atomic_t pin_memory
;
1073 atomic_t gtt_memory
;
1075 uint32_t invalidate_domains
; /* domains pending invalidation */
1076 uint32_t flush_domains
; /* domains pending flush */
1081 static inline int drm_dev_to_irq(struct drm_device
*dev
)
1083 return dev
->pdev
->irq
;
1086 static __inline__
int drm_core_check_feature(struct drm_device
*dev
,
1089 return ((dev
->driver
->driver_features
& feature
) ? 1 : 0);
1093 #define drm_get_pci_domain(dev) dev->hose->index
1095 #define drm_get_pci_domain(dev) 0
1099 static inline int drm_core_has_AGP(struct drm_device
*dev
)
1101 return drm_core_check_feature(dev
, DRIVER_USE_AGP
);
1104 #define drm_core_has_AGP(dev) (0)
1108 static inline int drm_core_has_MTRR(struct drm_device
*dev
)
1110 return drm_core_check_feature(dev
, DRIVER_USE_MTRR
);
1113 #define DRM_MTRR_WC MTRR_TYPE_WRCOMB
1115 static inline int drm_mtrr_add(unsigned long offset
, unsigned long size
,
1118 return mtrr_add(offset
, size
, flags
, 1);
1121 static inline int drm_mtrr_del(int handle
, unsigned long offset
,
1122 unsigned long size
, unsigned int flags
)
1124 return mtrr_del(handle
, offset
, size
);
1128 #define drm_core_has_MTRR(dev) (0)
1130 #define DRM_MTRR_WC 0
1132 static inline int drm_mtrr_add(unsigned long offset
, unsigned long size
,
1138 static inline int drm_mtrr_del(int handle
, unsigned long offset
,
1139 unsigned long size
, unsigned int flags
)
1145 /******************************************************************/
1146 /** \name Internal function definitions */
1149 /* Driver support (drm_drv.h) */
1150 extern int drm_init(struct drm_driver
*driver
);
1151 extern void drm_exit(struct drm_driver
*driver
);
1152 extern int drm_ioctl(struct inode
*inode
, struct file
*filp
,
1153 unsigned int cmd
, unsigned long arg
);
1154 extern long drm_compat_ioctl(struct file
*filp
,
1155 unsigned int cmd
, unsigned long arg
);
1156 extern int drm_lastclose(struct drm_device
*dev
);
1158 /* Device support (drm_fops.h) */
1159 extern int drm_open(struct inode
*inode
, struct file
*filp
);
1160 extern int drm_stub_open(struct inode
*inode
, struct file
*filp
);
1161 extern int drm_fasync(int fd
, struct file
*filp
, int on
);
1162 extern ssize_t
drm_read(struct file
*filp
, char __user
*buffer
,
1163 size_t count
, loff_t
*offset
);
1164 extern int drm_release(struct inode
*inode
, struct file
*filp
);
1166 /* Mapping support (drm_vm.h) */
1167 extern int drm_mmap(struct file
*filp
, struct vm_area_struct
*vma
);
1168 extern int drm_mmap_locked(struct file
*filp
, struct vm_area_struct
*vma
);
1169 extern void drm_vm_open_locked(struct vm_area_struct
*vma
);
1170 extern resource_size_t
drm_core_get_map_ofs(struct drm_local_map
* map
);
1171 extern resource_size_t
drm_core_get_reg_ofs(struct drm_device
*dev
);
1172 extern unsigned int drm_poll(struct file
*filp
, struct poll_table_struct
*wait
);
1174 /* Memory management support (drm_memory.h) */
1175 #include "drm_memory.h"
1176 extern void drm_mem_init(void);
1177 extern int drm_mem_info(char *buf
, char **start
, off_t offset
,
1178 int request
, int *eof
, void *data
);
1179 extern void *drm_realloc(void *oldpt
, size_t oldsize
, size_t size
, int area
);
1181 extern DRM_AGP_MEM
*drm_alloc_agp(struct drm_device
*dev
, int pages
, u32 type
);
1182 extern int drm_free_agp(DRM_AGP_MEM
* handle
, int pages
);
1183 extern int drm_bind_agp(DRM_AGP_MEM
* handle
, unsigned int start
);
1184 extern DRM_AGP_MEM
*drm_agp_bind_pages(struct drm_device
*dev
,
1185 struct page
**pages
,
1186 unsigned long num_pages
,
1187 uint32_t gtt_offset
,
1189 extern int drm_unbind_agp(DRM_AGP_MEM
* handle
);
1191 /* Misc. IOCTL support (drm_ioctl.h) */
1192 extern int drm_irq_by_busid(struct drm_device
*dev
, void *data
,
1193 struct drm_file
*file_priv
);
1194 extern int drm_getunique(struct drm_device
*dev
, void *data
,
1195 struct drm_file
*file_priv
);
1196 extern int drm_setunique(struct drm_device
*dev
, void *data
,
1197 struct drm_file
*file_priv
);
1198 extern int drm_getmap(struct drm_device
*dev
, void *data
,
1199 struct drm_file
*file_priv
);
1200 extern int drm_getclient(struct drm_device
*dev
, void *data
,
1201 struct drm_file
*file_priv
);
1202 extern int drm_getstats(struct drm_device
*dev
, void *data
,
1203 struct drm_file
*file_priv
);
1204 extern int drm_setversion(struct drm_device
*dev
, void *data
,
1205 struct drm_file
*file_priv
);
1206 extern int drm_noop(struct drm_device
*dev
, void *data
,
1207 struct drm_file
*file_priv
);
1209 /* Context IOCTL support (drm_context.h) */
1210 extern int drm_resctx(struct drm_device
*dev
, void *data
,
1211 struct drm_file
*file_priv
);
1212 extern int drm_addctx(struct drm_device
*dev
, void *data
,
1213 struct drm_file
*file_priv
);
1214 extern int drm_modctx(struct drm_device
*dev
, void *data
,
1215 struct drm_file
*file_priv
);
1216 extern int drm_getctx(struct drm_device
*dev
, void *data
,
1217 struct drm_file
*file_priv
);
1218 extern int drm_switchctx(struct drm_device
*dev
, void *data
,
1219 struct drm_file
*file_priv
);
1220 extern int drm_newctx(struct drm_device
*dev
, void *data
,
1221 struct drm_file
*file_priv
);
1222 extern int drm_rmctx(struct drm_device
*dev
, void *data
,
1223 struct drm_file
*file_priv
);
1225 extern int drm_ctxbitmap_init(struct drm_device
*dev
);
1226 extern void drm_ctxbitmap_cleanup(struct drm_device
*dev
);
1227 extern void drm_ctxbitmap_free(struct drm_device
*dev
, int ctx_handle
);
1229 extern int drm_setsareactx(struct drm_device
*dev
, void *data
,
1230 struct drm_file
*file_priv
);
1231 extern int drm_getsareactx(struct drm_device
*dev
, void *data
,
1232 struct drm_file
*file_priv
);
1234 /* Drawable IOCTL support (drm_drawable.h) */
1235 extern int drm_adddraw(struct drm_device
*dev
, void *data
,
1236 struct drm_file
*file_priv
);
1237 extern int drm_rmdraw(struct drm_device
*dev
, void *data
,
1238 struct drm_file
*file_priv
);
1239 extern int drm_update_drawable_info(struct drm_device
*dev
, void *data
,
1240 struct drm_file
*file_priv
);
1241 extern struct drm_drawable_info
*drm_get_drawable_info(struct drm_device
*dev
,
1243 extern void drm_drawable_free_all(struct drm_device
*dev
);
1245 /* Authentication IOCTL support (drm_auth.h) */
1246 extern int drm_getmagic(struct drm_device
*dev
, void *data
,
1247 struct drm_file
*file_priv
);
1248 extern int drm_authmagic(struct drm_device
*dev
, void *data
,
1249 struct drm_file
*file_priv
);
1251 /* Cache management (drm_cache.c) */
1252 void drm_clflush_pages(struct page
*pages
[], unsigned long num_pages
);
1254 /* Locking IOCTL support (drm_lock.h) */
1255 extern int drm_lock(struct drm_device
*dev
, void *data
,
1256 struct drm_file
*file_priv
);
1257 extern int drm_unlock(struct drm_device
*dev
, void *data
,
1258 struct drm_file
*file_priv
);
1259 extern int drm_lock_take(struct drm_lock_data
*lock_data
, unsigned int context
);
1260 extern int drm_lock_free(struct drm_lock_data
*lock_data
, unsigned int context
);
1261 extern void drm_idlelock_take(struct drm_lock_data
*lock_data
);
1262 extern void drm_idlelock_release(struct drm_lock_data
*lock_data
);
1265 * These are exported to drivers so that they can implement fencing using
1266 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
1269 extern int drm_i_have_hw_lock(struct drm_device
*dev
, struct drm_file
*file_priv
);
1271 /* Buffer management support (drm_bufs.h) */
1272 extern int drm_addbufs_agp(struct drm_device
*dev
, struct drm_buf_desc
* request
);
1273 extern int drm_addbufs_pci(struct drm_device
*dev
, struct drm_buf_desc
* request
);
1274 extern int drm_addmap(struct drm_device
*dev
, resource_size_t offset
,
1275 unsigned int size
, enum drm_map_type type
,
1276 enum drm_map_flags flags
, struct drm_local_map
**map_ptr
);
1277 extern int drm_addmap_ioctl(struct drm_device
*dev
, void *data
,
1278 struct drm_file
*file_priv
);
1279 extern int drm_rmmap(struct drm_device
*dev
, struct drm_local_map
*map
);
1280 extern int drm_rmmap_locked(struct drm_device
*dev
, struct drm_local_map
*map
);
1281 extern int drm_rmmap_ioctl(struct drm_device
*dev
, void *data
,
1282 struct drm_file
*file_priv
);
1283 extern int drm_addbufs(struct drm_device
*dev
, void *data
,
1284 struct drm_file
*file_priv
);
1285 extern int drm_infobufs(struct drm_device
*dev
, void *data
,
1286 struct drm_file
*file_priv
);
1287 extern int drm_markbufs(struct drm_device
*dev
, void *data
,
1288 struct drm_file
*file_priv
);
1289 extern int drm_freebufs(struct drm_device
*dev
, void *data
,
1290 struct drm_file
*file_priv
);
1291 extern int drm_mapbufs(struct drm_device
*dev
, void *data
,
1292 struct drm_file
*file_priv
);
1293 extern int drm_order(unsigned long size
);
1294 extern resource_size_t
drm_get_resource_start(struct drm_device
*dev
,
1295 unsigned int resource
);
1296 extern resource_size_t
drm_get_resource_len(struct drm_device
*dev
,
1297 unsigned int resource
);
1299 /* DMA support (drm_dma.h) */
1300 extern int drm_dma_setup(struct drm_device
*dev
);
1301 extern void drm_dma_takedown(struct drm_device
*dev
);
1302 extern void drm_free_buffer(struct drm_device
*dev
, struct drm_buf
* buf
);
1303 extern void drm_core_reclaim_buffers(struct drm_device
*dev
,
1304 struct drm_file
*filp
);
1306 /* IRQ support (drm_irq.h) */
1307 extern int drm_control(struct drm_device
*dev
, void *data
,
1308 struct drm_file
*file_priv
);
1309 extern irqreturn_t
drm_irq_handler(DRM_IRQ_ARGS
);
1310 extern int drm_irq_install(struct drm_device
*dev
);
1311 extern int drm_irq_uninstall(struct drm_device
*dev
);
1312 extern void drm_driver_irq_preinstall(struct drm_device
*dev
);
1313 extern void drm_driver_irq_postinstall(struct drm_device
*dev
);
1314 extern void drm_driver_irq_uninstall(struct drm_device
*dev
);
1316 extern int drm_vblank_init(struct drm_device
*dev
, int num_crtcs
);
1317 extern int drm_wait_vblank(struct drm_device
*dev
, void *data
,
1318 struct drm_file
*filp
);
1319 extern int drm_vblank_wait(struct drm_device
*dev
, unsigned int *vbl_seq
);
1320 extern u32
drm_vblank_count(struct drm_device
*dev
, int crtc
);
1321 extern void drm_handle_vblank(struct drm_device
*dev
, int crtc
);
1322 extern int drm_vblank_get(struct drm_device
*dev
, int crtc
);
1323 extern void drm_vblank_put(struct drm_device
*dev
, int crtc
);
1324 extern void drm_vblank_cleanup(struct drm_device
*dev
);
1325 /* Modesetting support */
1326 extern void drm_vblank_pre_modeset(struct drm_device
*dev
, int crtc
);
1327 extern void drm_vblank_post_modeset(struct drm_device
*dev
, int crtc
);
1328 extern int drm_modeset_ctl(struct drm_device
*dev
, void *data
,
1329 struct drm_file
*file_priv
);
1331 /* AGP/GART support (drm_agpsupport.h) */
1332 extern struct drm_agp_head
*drm_agp_init(struct drm_device
*dev
);
1333 extern int drm_agp_acquire(struct drm_device
*dev
);
1334 extern int drm_agp_acquire_ioctl(struct drm_device
*dev
, void *data
,
1335 struct drm_file
*file_priv
);
1336 extern int drm_agp_release(struct drm_device
*dev
);
1337 extern int drm_agp_release_ioctl(struct drm_device
*dev
, void *data
,
1338 struct drm_file
*file_priv
);
1339 extern int drm_agp_enable(struct drm_device
*dev
, struct drm_agp_mode mode
);
1340 extern int drm_agp_enable_ioctl(struct drm_device
*dev
, void *data
,
1341 struct drm_file
*file_priv
);
1342 extern int drm_agp_info(struct drm_device
*dev
, struct drm_agp_info
*info
);
1343 extern int drm_agp_info_ioctl(struct drm_device
*dev
, void *data
,
1344 struct drm_file
*file_priv
);
1345 extern int drm_agp_alloc(struct drm_device
*dev
, struct drm_agp_buffer
*request
);
1346 extern int drm_agp_alloc_ioctl(struct drm_device
*dev
, void *data
,
1347 struct drm_file
*file_priv
);
1348 extern int drm_agp_free(struct drm_device
*dev
, struct drm_agp_buffer
*request
);
1349 extern int drm_agp_free_ioctl(struct drm_device
*dev
, void *data
,
1350 struct drm_file
*file_priv
);
1351 extern int drm_agp_unbind(struct drm_device
*dev
, struct drm_agp_binding
*request
);
1352 extern int drm_agp_unbind_ioctl(struct drm_device
*dev
, void *data
,
1353 struct drm_file
*file_priv
);
1354 extern int drm_agp_bind(struct drm_device
*dev
, struct drm_agp_binding
*request
);
1355 extern int drm_agp_bind_ioctl(struct drm_device
*dev
, void *data
,
1356 struct drm_file
*file_priv
);
1357 extern DRM_AGP_MEM
*drm_agp_allocate_memory(struct agp_bridge_data
*bridge
, size_t pages
, u32 type
);
1358 extern int drm_agp_free_memory(DRM_AGP_MEM
* handle
);
1359 extern int drm_agp_bind_memory(DRM_AGP_MEM
* handle
, off_t start
);
1360 extern int drm_agp_unbind_memory(DRM_AGP_MEM
* handle
);
1361 extern void drm_agp_chipset_flush(struct drm_device
*dev
);
1363 /* Stub support (drm_stub.h) */
1364 extern int drm_setmaster_ioctl(struct drm_device
*dev
, void *data
,
1365 struct drm_file
*file_priv
);
1366 extern int drm_dropmaster_ioctl(struct drm_device
*dev
, void *data
,
1367 struct drm_file
*file_priv
);
1368 struct drm_master
*drm_master_create(struct drm_minor
*minor
);
1369 extern struct drm_master
*drm_master_get(struct drm_master
*master
);
1370 extern void drm_master_put(struct drm_master
**master
);
1371 extern int drm_get_dev(struct pci_dev
*pdev
, const struct pci_device_id
*ent
,
1372 struct drm_driver
*driver
);
1373 extern void drm_put_dev(struct drm_device
*dev
);
1374 extern int drm_put_minor(struct drm_minor
**minor
);
1375 extern unsigned int drm_debug
;
1377 extern struct class *drm_class
;
1378 extern struct proc_dir_entry
*drm_proc_root
;
1379 extern struct dentry
*drm_debugfs_root
;
1381 extern struct idr drm_minors_idr
;
1383 extern struct drm_local_map
*drm_getsarea(struct drm_device
*dev
);
1385 /* Proc support (drm_proc.h) */
1386 extern int drm_proc_init(struct drm_minor
*minor
, int minor_id
,
1387 struct proc_dir_entry
*root
);
1388 extern int drm_proc_cleanup(struct drm_minor
*minor
, struct proc_dir_entry
*root
);
1390 /* Debugfs support */
1391 #if defined(CONFIG_DEBUG_FS)
1392 extern int drm_debugfs_init(struct drm_minor
*minor
, int minor_id
,
1393 struct dentry
*root
);
1394 extern int drm_debugfs_create_files(struct drm_info_list
*files
, int count
,
1395 struct dentry
*root
, struct drm_minor
*minor
);
1396 extern int drm_debugfs_remove_files(struct drm_info_list
*files
, int count
,
1397 struct drm_minor
*minor
);
1398 extern int drm_debugfs_cleanup(struct drm_minor
*minor
);
1401 /* Info file support */
1402 extern int drm_name_info(struct seq_file
*m
, void *data
);
1403 extern int drm_vm_info(struct seq_file
*m
, void *data
);
1404 extern int drm_queues_info(struct seq_file
*m
, void *data
);
1405 extern int drm_bufs_info(struct seq_file
*m
, void *data
);
1406 extern int drm_vblank_info(struct seq_file
*m
, void *data
);
1407 extern int drm_clients_info(struct seq_file
*m
, void* data
);
1408 extern int drm_gem_name_info(struct seq_file
*m
, void *data
);
1409 extern int drm_gem_object_info(struct seq_file
*m
, void* data
);
1412 extern int drm_vma_info(struct seq_file
*m
, void *data
);
1415 /* Scatter Gather Support (drm_scatter.h) */
1416 extern void drm_sg_cleanup(struct drm_sg_mem
* entry
);
1417 extern int drm_sg_alloc_ioctl(struct drm_device
*dev
, void *data
,
1418 struct drm_file
*file_priv
);
1419 extern int drm_sg_alloc(struct drm_device
*dev
, struct drm_scatter_gather
* request
);
1420 extern int drm_sg_free(struct drm_device
*dev
, void *data
,
1421 struct drm_file
*file_priv
);
1423 /* ATI PCIGART support (ati_pcigart.h) */
1424 extern int drm_ati_pcigart_init(struct drm_device
*dev
,
1425 struct drm_ati_pcigart_info
* gart_info
);
1426 extern int drm_ati_pcigart_cleanup(struct drm_device
*dev
,
1427 struct drm_ati_pcigart_info
* gart_info
);
1429 extern drm_dma_handle_t
*drm_pci_alloc(struct drm_device
*dev
, size_t size
,
1430 size_t align
, dma_addr_t maxaddr
);
1431 extern void __drm_pci_free(struct drm_device
*dev
, drm_dma_handle_t
* dmah
);
1432 extern void drm_pci_free(struct drm_device
*dev
, drm_dma_handle_t
* dmah
);
1434 /* sysfs support (drm_sysfs.c) */
1435 struct drm_sysfs_class
;
1436 extern struct class *drm_sysfs_create(struct module
*owner
, char *name
);
1437 extern void drm_sysfs_destroy(void);
1438 extern int drm_sysfs_device_add(struct drm_minor
*minor
);
1439 extern void drm_sysfs_hotplug_event(struct drm_device
*dev
);
1440 extern void drm_sysfs_device_remove(struct drm_minor
*minor
);
1441 extern char *drm_get_connector_status_name(enum drm_connector_status status
);
1442 extern int drm_sysfs_connector_add(struct drm_connector
*connector
);
1443 extern void drm_sysfs_connector_remove(struct drm_connector
*connector
);
1445 /* Graphics Execution Manager library functions (drm_gem.c) */
1446 int drm_gem_init(struct drm_device
*dev
);
1447 void drm_gem_destroy(struct drm_device
*dev
);
1448 void drm_gem_object_free(struct kref
*kref
);
1449 struct drm_gem_object
*drm_gem_object_alloc(struct drm_device
*dev
,
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
);
1457 drm_gem_object_reference(struct drm_gem_object
*obj
)
1459 kref_get(&obj
->refcount
);
1463 drm_gem_object_unreference(struct drm_gem_object
*obj
)
1468 kref_put(&obj
->refcount
, drm_gem_object_free
);
1471 int drm_gem_handle_create(struct drm_file
*file_priv
,
1472 struct drm_gem_object
*obj
,
1476 drm_gem_object_handle_reference(struct drm_gem_object
*obj
)
1478 drm_gem_object_reference(obj
);
1479 kref_get(&obj
->handlecount
);
1483 drm_gem_object_handle_unreference(struct drm_gem_object
*obj
)
1489 * Must bump handle count first as this may be the last
1490 * ref, in which case the object would disappear before we
1491 * checked for a name
1493 kref_put(&obj
->handlecount
, drm_gem_object_handle_free
);
1494 drm_gem_object_unreference(obj
);
1497 struct drm_gem_object
*drm_gem_object_lookup(struct drm_device
*dev
,
1498 struct drm_file
*filp
,
1500 int drm_gem_close_ioctl(struct drm_device
*dev
, void *data
,
1501 struct drm_file
*file_priv
);
1502 int drm_gem_flink_ioctl(struct drm_device
*dev
, void *data
,
1503 struct drm_file
*file_priv
);
1504 int drm_gem_open_ioctl(struct drm_device
*dev
, void *data
,
1505 struct drm_file
*file_priv
);
1506 void drm_gem_open(struct drm_device
*dev
, struct drm_file
*file_private
);
1507 void drm_gem_release(struct drm_device
*dev
, struct drm_file
*file_private
);
1509 extern void drm_core_ioremap(struct drm_local_map
*map
, struct drm_device
*dev
);
1510 extern void drm_core_ioremap_wc(struct drm_local_map
*map
, struct drm_device
*dev
);
1511 extern void drm_core_ioremapfree(struct drm_local_map
*map
, struct drm_device
*dev
);
1513 static __inline__
struct drm_local_map
*drm_core_findmap(struct drm_device
*dev
,
1516 struct drm_map_list
*_entry
;
1517 list_for_each_entry(_entry
, &dev
->maplist
, head
)
1518 if (_entry
->user_token
== token
)
1523 static __inline__
int drm_device_is_agp(struct drm_device
*dev
)
1525 if (dev
->driver
->device_is_agp
!= NULL
) {
1526 int err
= (*dev
->driver
->device_is_agp
) (dev
);
1533 return pci_find_capability(dev
->pdev
, PCI_CAP_ID_AGP
);
1536 static __inline__
int drm_device_is_pcie(struct drm_device
*dev
)
1538 return pci_find_capability(dev
->pdev
, PCI_CAP_ID_EXP
);
1541 static __inline__
void drm_core_dropmap(struct drm_local_map
*map
)
1546 static __inline__
void *drm_calloc_large(size_t nmemb
, size_t size
)
1548 if (size
!= 0 && nmemb
> ULONG_MAX
/ size
)
1551 if (size
* nmemb
<= PAGE_SIZE
)
1552 return kcalloc(nmemb
, size
, GFP_KERNEL
);
1554 return __vmalloc(size
* nmemb
,
1555 GFP_KERNEL
| __GFP_HIGHMEM
| __GFP_ZERO
, PAGE_KERNEL
);
1558 /* Modeled after cairo's malloc_ab, it's like calloc but without the zeroing. */
1559 static __inline__
void *drm_malloc_ab(size_t nmemb
, size_t size
)
1561 if (size
!= 0 && nmemb
> ULONG_MAX
/ size
)
1564 if (size
* nmemb
<= PAGE_SIZE
)
1565 return kmalloc(nmemb
* size
, GFP_KERNEL
);
1567 return __vmalloc(size
* nmemb
,
1568 GFP_KERNEL
| __GFP_HIGHMEM
, PAGE_KERNEL
);
1571 static __inline
void drm_free_large(void *ptr
)
1573 if (!is_vmalloc_addr(ptr
))
1580 #endif /* __KERNEL__ */