3 * Private header for Direct Rendering Manager
5 * \author Rickard E. (Rik) Faith <faith@valinux.com>
6 * \author Gareth Hughes <gareth@valinux.com>
10 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
11 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
12 * Copyright (c) 2009-2010, Code Aurora Forum.
13 * All rights reserved.
15 * Permission is hereby granted, free of charge, to any person obtaining a
16 * copy of this software and associated documentation files (the "Software"),
17 * to deal in the Software without restriction, including without limitation
18 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
19 * and/or sell copies of the Software, and to permit persons to whom the
20 * Software is furnished to do so, subject to the following conditions:
22 * The above copyright notice and this permission notice (including the next
23 * paragraph) shall be included in all copies or substantial portions of the
26 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
27 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
28 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
29 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
30 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
31 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
32 * OTHER DEALINGS IN THE SOFTWARE.
40 /* add include of current.h so that "current" is defined
41 * before static inline funcs in wait.h. Doing this so we
42 * can build the DRM (part of PI DRI). 4/21/2000 S + B */
43 #include <asm/current.h>
44 #endif /* __alpha__ */
45 #include <linux/module.h>
46 #include <linux/kernel.h>
47 #include <linux/miscdevice.h>
49 #include <linux/proc_fs.h>
50 #include <linux/init.h>
51 #include <linux/file.h>
52 #include <linux/platform_device.h>
53 #include <linux/pci.h>
54 #include <linux/jiffies.h>
55 #include <linux/smp_lock.h> /* For (un)lock_kernel */
56 #include <linux/dma-mapping.h>
58 #include <linux/cdev.h>
59 #include <linux/mutex.h>
60 #include <linux/slab.h>
61 #if defined(__alpha__) || defined(__powerpc__)
62 #include <asm/pgtable.h> /* For pte_wrprotect */
66 #include <asm/uaccess.h>
70 #if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
71 #include <linux/types.h>
72 #include <linux/agp_backend.h>
74 #include <linux/workqueue.h>
75 #include <linux/poll.h>
76 #include <asm/pgalloc.h>
79 #include <linux/idr.h>
81 #define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE)))
82 #define __OS_HAS_MTRR (defined(CONFIG_MTRR))
87 #include "drm_os_linux.h"
88 #include "drm_hashtab.h"
91 #define DRM_UT_CORE 0x01
92 #define DRM_UT_DRIVER 0x02
93 #define DRM_UT_KMS 0x04
95 * Three debug levels are defined.
96 * drm_core, drm_driver, drm_kms
97 * drm_core level can be used in the generic drm code. For example:
98 * drm_ioctl, drm_mm, drm_memory
99 * The macro definiton of DRM_DEBUG is used.
100 * DRM_DEBUG(fmt, args...)
101 * The debug info by using the DRM_DEBUG can be obtained by adding
102 * the boot option of "drm.debug=1".
104 * drm_driver level can be used in the specific drm driver. It is used
105 * to add the debug info related with the drm driver. For example:
106 * i915_drv, i915_dma, i915_gem, radeon_drv,
107 * The macro definition of DRM_DEBUG_DRIVER can be used.
108 * DRM_DEBUG_DRIVER(fmt, args...)
109 * The debug info by using the DRM_DEBUG_DRIVER can be obtained by
110 * adding the boot option of "drm.debug=0x02"
112 * drm_kms level can be used in the KMS code related with specific drm driver.
113 * It is used to add the debug info related with KMS mode. For example:
114 * the connector/crtc ,
115 * The macro definition of DRM_DEBUG_KMS can be used.
116 * DRM_DEBUG_KMS(fmt, args...)
117 * The debug info by using the DRM_DEBUG_KMS can be obtained by
118 * adding the boot option of "drm.debug=0x04"
120 * If we add the boot option of "drm.debug=0x06", we can get the debug info by
121 * using the DRM_DEBUG_KMS and DRM_DEBUG_DRIVER.
122 * If we add the boot option of "drm.debug=0x05", we can get the debug info by
123 * using the DRM_DEBUG_KMS and DRM_DEBUG.
126 extern void drm_ut_debug_printk(unsigned int request_level,
128 const char *function_name,
129 const char *format, ...);
130 /***********************************************************************/
131 /** \name DRM template customization defaults */
134 /* driver capabilities and requirements mask */
135 #define DRIVER_USE_AGP 0x1
136 #define DRIVER_REQUIRE_AGP 0x2
137 #define DRIVER_USE_MTRR 0x4
138 #define DRIVER_PCI_DMA 0x8
139 #define DRIVER_SG 0x10
140 #define DRIVER_HAVE_DMA 0x20
141 #define DRIVER_HAVE_IRQ 0x40
142 #define DRIVER_IRQ_SHARED 0x80
143 #define DRIVER_IRQ_VBL 0x100
144 #define DRIVER_DMA_QUEUE 0x200
145 #define DRIVER_FB_DMA 0x400
146 #define DRIVER_IRQ_VBL2 0x800
147 #define DRIVER_GEM 0x1000
148 #define DRIVER_MODESET 0x2000
149 #define DRIVER_USE_PLATFORM_DEVICE 0x4000
151 /***********************************************************************/
152 /** \name Begin the DRM... */
155 #define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then
156 also include looping detection. */
158 #define DRM_MAGIC_HASH_ORDER 4 /**< Size of key hash table. Must be power of 2. */
159 #define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */
160 #define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */
161 #define DRM_LOOPING_LIMIT 5000000
162 #define DRM_TIME_SLICE (HZ/20) /**< Time slice for GLXContexts */
163 #define DRM_LOCK_SLICE 1 /**< Time slice for lock, in jiffies */
165 #define DRM_FLAG_DEBUG 0x01
167 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
168 #define DRM_MAP_HASH_OFFSET 0x10000000
172 /***********************************************************************/
173 /** \name Macros to make printk easier */
179 * \param fmt printf() like format string.
180 * \param arg arguments
182 #define DRM_ERROR(fmt, arg...) \
183 printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* " fmt , __func__ , ##arg)
186 * Memory error output.
188 * \param area memory area where the error occurred.
189 * \param fmt printf() like format string.
190 * \param arg arguments
192 #define DRM_MEM_ERROR(area, fmt, arg...) \
193 printk(KERN_ERR "[" DRM_NAME ":%s:%s] *ERROR* " fmt , __func__, \
194 drm_mem_stats[area].name , ##arg)
196 #define DRM_INFO(fmt, arg...) printk(KERN_INFO "[" DRM_NAME "] " fmt , ##arg)
201 * \param fmt printf() like format string.
202 * \param arg arguments
205 #define DRM_DEBUG(fmt, args...) \
207 drm_ut_debug_printk(DRM_UT_CORE, DRM_NAME, \
208 __func__, fmt, ##args); \
211 #define DRM_DEBUG_DRIVER(fmt, args...) \
213 drm_ut_debug_printk(DRM_UT_DRIVER, DRM_NAME, \
214 __func__, fmt, ##args); \
216 #define DRM_DEBUG_KMS(fmt, args...) \
218 drm_ut_debug_printk(DRM_UT_KMS, DRM_NAME, \
219 __func__, fmt, ##args); \
221 #define DRM_LOG(fmt, args...) \
223 drm_ut_debug_printk(DRM_UT_CORE, NULL, \
224 NULL, fmt, ##args); \
226 #define DRM_LOG_KMS(fmt, args...) \
228 drm_ut_debug_printk(DRM_UT_KMS, NULL, \
229 NULL, fmt, ##args); \
231 #define DRM_LOG_MODE(fmt, args...) \
233 drm_ut_debug_printk(DRM_UT_MODE, NULL, \
234 NULL, fmt, ##args); \
236 #define DRM_LOG_DRIVER(fmt, args...) \
238 drm_ut_debug_printk(DRM_UT_DRIVER, NULL, \
239 NULL, fmt, ##args); \
242 #define DRM_DEBUG_DRIVER(fmt, args...) do { } while (0)
243 #define DRM_DEBUG_KMS(fmt, args...) do { } while (0)
244 #define DRM_DEBUG(fmt, arg...) do { } while (0)
245 #define DRM_LOG(fmt, arg...) do { } while (0)
246 #define DRM_LOG_KMS(fmt, args...) do { } while (0)
247 #define DRM_LOG_MODE(fmt, arg...) do { } while (0)
248 #define DRM_LOG_DRIVER(fmt, arg...) do { } while (0)
254 /***********************************************************************/
255 /** \name Internal types and structures */
258 #define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x)
260 #define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
261 #define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
263 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
266 * Test that the hardware lock is held by the caller, returning otherwise.
268 * \param dev DRM device.
269 * \param filp file pointer of the caller.
271 #define LOCK_TEST_WITH_RETURN( dev, _file_priv ) \
273 if (!_DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock) || \
274 _file_priv->master->lock.file_priv != _file_priv) { \
275 DRM_ERROR( "%s called without lock held, held %d owner %p %p\n",\
276 __func__, _DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock),\
277 _file_priv->master->lock.file_priv, _file_priv); \
283 * Ioctl function type.
285 * \param inode device inode.
286 * \param file_priv DRM file private pointer.
287 * \param cmd command.
288 * \param arg argument.
290 typedef int drm_ioctl_t(struct drm_device *dev, void *data,
291 struct drm_file *file_priv);
293 typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
296 #define DRM_IOCTL_NR(n) _IOC_NR(n)
297 #define DRM_MAJOR 226
300 #define DRM_MASTER 0x2
301 #define DRM_ROOT_ONLY 0x4
302 #define DRM_CONTROL_ALLOW 0x8
303 #define DRM_UNLOCKED 0x10
305 struct drm_ioctl_desc {
312 * Creates a driver or general drm_ioctl_desc array entry for the given
313 * ioctl, for use by drm_ioctl().
315 #define DRM_IOCTL_DEF(ioctl, _func, _flags) \
316 [DRM_IOCTL_NR(ioctl)] = {.cmd = ioctl, .func = _func, .flags = _flags}
318 struct drm_magic_entry {
319 struct list_head head;
320 struct drm_hash_item hash_item;
321 struct drm_file *priv;
324 struct drm_vma_entry {
325 struct list_head head;
326 struct vm_area_struct *vma;
334 int idx; /**< Index into master buflist */
335 int total; /**< Buffer size */
336 int order; /**< log-base-2(total) */
337 int used; /**< Amount of buffer in use (for DMA) */
338 unsigned long offset; /**< Byte offset (used internally) */
339 void *address; /**< Address of buffer */
340 unsigned long bus_address; /**< Bus address of buffer */
341 struct drm_buf *next; /**< Kernel-only: used for free list */
342 __volatile__ int waiting; /**< On kernel DMA queue */
343 __volatile__ int pending; /**< On hardware DMA queue */
344 wait_queue_head_t dma_wait; /**< Processes waiting */
345 struct drm_file *file_priv; /**< Private of holding file descr */
346 int context; /**< Kernel queue for this buffer */
347 int while_locked; /**< Dispatch this buffer while locked */
355 } list; /**< Which list we're on */
357 int dev_priv_size; /**< Size of buffer private storage */
358 void *dev_private; /**< Per-buffer private storage */
361 /** bufs is one longer than it has to be */
362 struct drm_waitlist {
363 int count; /**< Number of possible buffers */
364 struct drm_buf **bufs; /**< List of pointers to buffers */
365 struct drm_buf **rp; /**< Read pointer */
366 struct drm_buf **wp; /**< Write pointer */
367 struct drm_buf **end; /**< End pointer */
368 spinlock_t read_lock;
369 spinlock_t write_lock;
372 struct drm_freelist {
373 int initialized; /**< Freelist in use */
374 atomic_t count; /**< Number of free buffers */
375 struct drm_buf *next; /**< End pointer */
377 wait_queue_head_t waiting; /**< Processes waiting on free bufs */
378 int low_mark; /**< Low water mark */
379 int high_mark; /**< High water mark */
380 atomic_t wfh; /**< If waiting for high mark */
384 typedef struct drm_dma_handle {
391 * Buffer entry. There is one of this for each buffer size order.
393 struct drm_buf_entry {
394 int buf_size; /**< size */
395 int buf_count; /**< number of buffers */
396 struct drm_buf *buflist; /**< buffer list */
399 struct drm_dma_handle **seglist;
401 struct drm_freelist freelist;
404 /* Event queued up for userspace to read */
405 struct drm_pending_event {
406 struct drm_event *event;
407 struct list_head link;
408 struct drm_file *file_priv;
409 pid_t pid; /* pid of requester, no guarantee it's valid by the time
410 we deliver the event, for tracing only */
411 void (*destroy)(struct drm_pending_event *event);
414 /** File private data */
420 unsigned long ioctl_count;
421 struct list_head lhead;
422 struct drm_minor *minor;
423 unsigned long lock_count;
425 /** Mapping of mm object handles to object pointers. */
426 struct idr object_idr;
427 /** Lock for synchronization of access to object_idr. */
428 spinlock_t table_lock;
433 int is_master; /* this file private is a master for a minor */
434 struct drm_master *master; /* master this node is currently associated with
435 N.B. not always minor->master */
436 struct list_head fbs;
438 wait_queue_head_t event_wait;
439 struct list_head event_list;
445 atomic_t use_count; /**< Outstanding uses (+1) */
446 atomic_t finalization; /**< Finalization in progress */
447 atomic_t block_count; /**< Count of processes waiting */
448 atomic_t block_read; /**< Queue blocked for reads */
449 wait_queue_head_t read_queue; /**< Processes waiting on block_read */
450 atomic_t block_write; /**< Queue blocked for writes */
451 wait_queue_head_t write_queue; /**< Processes waiting on block_write */
452 atomic_t total_queued; /**< Total queued statistic */
453 atomic_t total_flushed; /**< Total flushes statistic */
454 atomic_t total_locks; /**< Total locks statistics */
455 enum drm_ctx_flags flags; /**< Context preserving and 2D-only */
456 struct drm_waitlist waitlist; /**< Pending buffers */
457 wait_queue_head_t flush_queue; /**< Processes waiting until flush */
463 struct drm_lock_data {
464 struct drm_hw_lock *hw_lock; /**< Hardware lock */
465 /** Private of lock holder's file (NULL=kernel) */
466 struct drm_file *file_priv;
467 wait_queue_head_t lock_queue; /**< Queue of blocked processes */
468 unsigned long lock_time; /**< Time of last lock in jiffies */
470 uint32_t kernel_waiters;
471 uint32_t user_waiters;
478 struct drm_device_dma {
480 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */
481 int buf_count; /**< total number of buffers */
482 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */
484 int page_count; /**< number of pages */
485 unsigned long *pagelist; /**< page list */
486 unsigned long byte_count;
488 _DRM_DMA_USE_AGP = 0x01,
489 _DRM_DMA_USE_SG = 0x02,
490 _DRM_DMA_USE_FB = 0x04,
491 _DRM_DMA_USE_PCI_RO = 0x08
497 * AGP memory entry. Stored as a doubly linked list.
500 unsigned long handle; /**< handle */
502 unsigned long bound; /**< address */
504 struct list_head head;
510 * \sa drm_agp_init() and drm_device::agp.
512 struct drm_agp_head {
513 DRM_AGP_KERN agp_info; /**< AGP device information */
514 struct list_head memory;
515 unsigned long mode; /**< AGP mode */
516 struct agp_bridge_data *bridge;
517 int enabled; /**< whether the AGP bus as been enabled */
518 int acquired; /**< whether the AGP device has been acquired */
521 int cant_use_aperture;
522 unsigned long page_mask;
526 * Scatter-gather memory.
529 unsigned long handle;
532 struct page **pagelist;
538 struct drm_hw_lock *lock;
543 * Kernel side of a mapping
545 struct drm_local_map {
546 resource_size_t offset; /**< Requested physical address (0 for SAREA)*/
547 unsigned long size; /**< Requested physical size (bytes) */
548 enum drm_map_type type; /**< Type of memory to map */
549 enum drm_map_flags flags; /**< Flags */
550 void *handle; /**< User-space: "Handle" to pass to mmap() */
551 /**< Kernel-space: kernel-virtual address */
552 int mtrr; /**< MTRR slot used */
555 typedef struct drm_local_map drm_local_map_t;
560 struct drm_map_list {
561 struct list_head head; /**< list head */
562 struct drm_hash_item hash;
563 struct drm_local_map *map; /**< mapping */
565 struct drm_master *master;
566 struct drm_mm_node *file_offset_node; /**< fake offset */
570 * Context handle list
572 struct drm_ctx_list {
573 struct list_head head; /**< list head */
574 drm_context_t handle; /**< context handle */
575 struct drm_file *tag; /**< associated fd private data */
578 /* location of GART table */
579 #define DRM_ATI_GART_MAIN 1
580 #define DRM_ATI_GART_FB 2
582 #define DRM_ATI_GART_PCI 1
583 #define DRM_ATI_GART_PCIE 2
584 #define DRM_ATI_GART_IGP 3
586 struct drm_ati_pcigart_info {
587 int gart_table_location;
591 dma_addr_t table_mask;
592 struct drm_dma_handle *table_handle;
593 struct drm_local_map mapping;
598 * GEM specific mm private for tracking GEM objects
601 struct drm_mm offset_manager; /**< Offset mgmt for buffer objects */
602 struct drm_open_hash offset_hash; /**< User token hash table for maps */
606 * This structure defines the drm_mm memory object, which will be used by the
607 * DRM for its buffer objects.
609 struct drm_gem_object {
610 /** Reference count of this object */
611 struct kref refcount;
613 /** Handle count of this object. Each handle also holds a reference */
614 struct kref handlecount;
616 /** Related drm device */
617 struct drm_device *dev;
619 /** File representing the shmem storage */
622 /* Mapping info for this object */
623 struct drm_map_list map_list;
626 * Size of the object, in bytes. Immutable over the object's
632 * Global name for this object, starts at 1. 0 means unnamed.
633 * Access is covered by the object_name_lock in the related drm_device
638 * Memory domains. These monitor which caches contain read/write data
639 * related to the object. When transitioning from one set of domains
640 * to another, the driver is called to ensure that caches are suitably
641 * flushed and invalidated
643 uint32_t read_domains;
644 uint32_t write_domain;
647 * While validating an exec operation, the
648 * new read/write domain values are computed here.
649 * They will be transferred to the above values
650 * at the point that any cache flushing occurs
652 uint32_t pending_read_domains;
653 uint32_t pending_write_domain;
655 void *driver_private;
658 #include "drm_crtc.h"
660 /* per-master structure */
663 struct kref refcount; /* refcount for this master */
665 struct list_head head; /**< each minor contains a list of masters */
666 struct drm_minor *minor; /**< link back to minor we are a master for */
668 char *unique; /**< Unique identifier: e.g., busid */
669 int unique_len; /**< Length of unique field */
670 int unique_size; /**< amount allocated */
672 int blocked; /**< Blocked due to VC switch? */
674 /** \name Authentication */
676 struct drm_open_hash magiclist;
677 struct list_head magicfree;
680 struct drm_lock_data lock; /**< Information on hardware lock */
682 void *driver_priv; /**< Private structure for driver to use */
686 * DRM driver structure. This structure represent the common code for
687 * a family of cards. There will one drm_device for each card present
691 int (*load) (struct drm_device *, unsigned long flags);
692 int (*firstopen) (struct drm_device *);
693 int (*open) (struct drm_device *, struct drm_file *);
694 void (*preclose) (struct drm_device *, struct drm_file *file_priv);
695 void (*postclose) (struct drm_device *, struct drm_file *);
696 void (*lastclose) (struct drm_device *);
697 int (*unload) (struct drm_device *);
698 int (*suspend) (struct drm_device *, pm_message_t state);
699 int (*resume) (struct drm_device *);
700 int (*dma_ioctl) (struct drm_device *dev, void *data, struct drm_file *file_priv);
701 void (*dma_ready) (struct drm_device *);
702 int (*dma_quiescent) (struct drm_device *);
703 int (*context_ctor) (struct drm_device *dev, int context);
704 int (*context_dtor) (struct drm_device *dev, int context);
705 int (*kernel_context_switch) (struct drm_device *dev, int old,
707 void (*kernel_context_switch_unlock) (struct drm_device *dev);
710 * get_vblank_counter - get raw hardware vblank counter
712 * @crtc: counter to fetch
714 * Driver callback for fetching a raw hardware vblank counter
715 * for @crtc. If a device doesn't have a hardware counter, the
716 * driver can simply return the value of drm_vblank_count and
717 * make the enable_vblank() and disable_vblank() hooks into no-ops,
718 * leaving interrupts enabled at all times.
720 * Wraparound handling and loss of events due to modesetting is dealt
721 * with in the DRM core code.
724 * Raw vblank counter value.
726 u32 (*get_vblank_counter) (struct drm_device *dev, int crtc);
729 * enable_vblank - enable vblank interrupt events
731 * @crtc: which irq to enable
733 * Enable vblank interrupts for @crtc. If the device doesn't have
734 * a hardware vblank counter, this routine should be a no-op, since
735 * interrupts will have to stay on to keep the count accurate.
738 * Zero on success, appropriate errno if the given @crtc's vblank
739 * interrupt cannot be enabled.
741 int (*enable_vblank) (struct drm_device *dev, int crtc);
744 * disable_vblank - disable vblank interrupt events
746 * @crtc: which irq to enable
748 * Disable vblank interrupts for @crtc. If the device doesn't have
749 * a hardware vblank counter, this routine should be a no-op, since
750 * interrupts will have to stay on to keep the count accurate.
752 void (*disable_vblank) (struct drm_device *dev, int crtc);
755 * Called by \c drm_device_is_agp. Typically used to determine if a
756 * card is really attached to AGP or not.
758 * \param dev DRM device handle
761 * One of three values is returned depending on whether or not the
762 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
763 * (return of 1), or may or may not be AGP (return of 2).
765 int (*device_is_agp) (struct drm_device *dev);
767 /* these have to be filled in */
769 irqreturn_t(*irq_handler) (DRM_IRQ_ARGS);
770 void (*irq_preinstall) (struct drm_device *dev);
771 int (*irq_postinstall) (struct drm_device *dev);
772 void (*irq_uninstall) (struct drm_device *dev);
773 void (*reclaim_buffers) (struct drm_device *dev,
774 struct drm_file * file_priv);
775 void (*reclaim_buffers_locked) (struct drm_device *dev,
776 struct drm_file *file_priv);
777 void (*reclaim_buffers_idlelocked) (struct drm_device *dev,
778 struct drm_file *file_priv);
779 resource_size_t (*get_map_ofs) (struct drm_local_map * map);
780 resource_size_t (*get_reg_ofs) (struct drm_device *dev);
781 void (*set_version) (struct drm_device *dev,
782 struct drm_set_version *sv);
784 /* Master routines */
785 int (*master_create)(struct drm_device *dev, struct drm_master *master);
786 void (*master_destroy)(struct drm_device *dev, struct drm_master *master);
788 * master_set is called whenever the minor master is set.
789 * master_drop is called whenever the minor master is dropped.
792 int (*master_set)(struct drm_device *dev, struct drm_file *file_priv,
794 void (*master_drop)(struct drm_device *dev, struct drm_file *file_priv,
797 int (*proc_init)(struct drm_minor *minor);
798 void (*proc_cleanup)(struct drm_minor *minor);
799 int (*debugfs_init)(struct drm_minor *minor);
800 void (*debugfs_cleanup)(struct drm_minor *minor);
803 * Driver-specific constructor for drm_gem_objects, to set up
804 * obj->driver_private.
806 * Returns 0 on success.
808 int (*gem_init_object) (struct drm_gem_object *obj);
809 void (*gem_free_object) (struct drm_gem_object *obj);
810 void (*gem_free_object_unlocked) (struct drm_gem_object *obj);
812 /* vga arb irq handler */
813 void (*vgaarb_irq)(struct drm_device *dev, bool state);
815 /* Driver private ops for this object */
816 struct vm_operations_struct *gem_vm_ops;
827 struct drm_ioctl_desc *ioctls;
829 struct file_operations fops;
830 struct pci_driver pci_driver;
831 struct platform_device *platform_device;
832 /* List of devices hanging off this driver */
833 struct list_head device_list;
836 #define DRM_MINOR_UNASSIGNED 0
837 #define DRM_MINOR_LEGACY 1
838 #define DRM_MINOR_CONTROL 2
839 #define DRM_MINOR_RENDER 3
843 * debugfs node list. This structure represents a debugfs file to
844 * be created by the drm core
846 struct drm_debugfs_list {
847 const char *name; /** file name */
848 int (*show)(struct seq_file*, void*); /** show callback */
849 u32 driver_features; /**< Required driver features for this entry */
853 * debugfs node structure. This structure represents a debugfs file.
855 struct drm_debugfs_node {
856 struct list_head list;
857 struct drm_minor *minor;
858 struct drm_debugfs_list *debugfs_ent;
863 * Info file list entry. This structure represents a debugfs or proc file to
864 * be created by the drm core
866 struct drm_info_list {
867 const char *name; /** file name */
868 int (*show)(struct seq_file*, void*); /** show callback */
869 u32 driver_features; /**< Required driver features for this entry */
874 * debugfs node structure. This structure represents a debugfs file.
876 struct drm_info_node {
877 struct list_head list;
878 struct drm_minor *minor;
879 struct drm_info_list *info_ent;
884 * DRM minor structure. This structure represents a drm minor number.
887 int index; /**< Minor device number */
888 int type; /**< Control or render */
889 dev_t device; /**< Device number for mknod */
890 struct device kdev; /**< Linux device */
891 struct drm_device *dev;
893 struct proc_dir_entry *proc_root; /**< proc directory entry */
894 struct drm_info_node proc_nodes;
895 struct dentry *debugfs_root;
896 struct drm_info_node debugfs_nodes;
898 struct drm_master *master; /* currently active master for this node */
899 struct list_head master_list;
900 struct drm_mode_group mode_group;
903 struct drm_pending_vblank_event {
904 struct drm_pending_event base;
906 struct drm_event_vblank event;
910 * DRM device structure. This structure represent a complete card that
911 * may contain multiple heads.
914 struct list_head driver_item; /**< list of devices per driver */
915 char *devname; /**< For /proc/interrupts */
916 int if_version; /**< Highest interface version set */
920 spinlock_t count_lock; /**< For inuse, drm_device::open_count, drm_device::buf_use */
921 struct mutex struct_mutex; /**< For others */
924 /** \name Usage Counters */
926 int open_count; /**< Outstanding files open */
927 atomic_t ioctl_count; /**< Outstanding IOCTLs pending */
928 atomic_t vma_count; /**< Outstanding vma areas open */
929 int buf_use; /**< Buffers in use -- cannot alloc */
930 atomic_t buf_alloc; /**< Buffer allocation in progress */
933 /** \name Performance counters */
935 unsigned long counters;
936 enum drm_stat_type types[15];
940 struct list_head filelist;
942 /** \name Memory management */
944 struct list_head maplist; /**< Linked list of regions */
945 int map_count; /**< Number of mappable regions */
946 struct drm_open_hash map_hash; /**< User token hash table for maps */
948 /** \name Context handle management */
950 struct list_head ctxlist; /**< Linked list of context handles */
951 int ctx_count; /**< Number of context handles */
952 struct mutex ctxlist_mutex; /**< For ctxlist */
956 struct list_head vmalist; /**< List of vmas (for debugging) */
960 /** \name DMA queues (contexts) */
962 int queue_count; /**< Number of active DMA queues */
963 int queue_reserved; /**< Number of reserved DMA queues */
964 int queue_slots; /**< Actual length of queuelist */
965 struct drm_queue **queuelist; /**< Vector of pointers to DMA queues */
966 struct drm_device_dma *dma; /**< Optional pointer for DMA support */
969 /** \name Context support */
971 int irq_enabled; /**< True if irq handler is enabled */
972 __volatile__ long context_flag; /**< Context swapping flag */
973 __volatile__ long interrupt_flag; /**< Interruption handler flag */
974 __volatile__ long dma_flag; /**< DMA dispatch flag */
975 struct timer_list timer; /**< Timer for delaying ctx switch */
976 wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */
977 int last_checked; /**< Last context checked for DMA */
978 int last_context; /**< Last current context */
979 unsigned long last_switch; /**< jiffies at last context switch */
982 struct work_struct work;
983 /** \name VBLANK IRQ support */
987 * At load time, disabling the vblank interrupt won't be allowed since
988 * old clients may not call the modeset ioctl and therefore misbehave.
989 * Once the modeset ioctl *has* been called though, we can safely
990 * disable them when unused.
992 int vblank_disable_allowed;
994 wait_queue_head_t *vbl_queue; /**< VBLANK wait queue */
995 atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */
997 atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */
998 u32 *last_vblank; /* protected by dev->vbl_lock, used */
999 /* for wraparound handling */
1000 int *vblank_enabled; /* so we don't call enable more than
1002 int *vblank_inmodeset; /* Display driver is setting mode */
1003 u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */
1004 struct timer_list vblank_disable_timer;
1006 u32 max_vblank_count; /**< size of vblank counter register */
1011 struct list_head vblank_event_list;
1012 spinlock_t event_lock;
1018 struct fasync_struct *buf_async;/**< Processes waiting for SIGIO */
1019 wait_queue_head_t buf_readers; /**< Processes waiting to read */
1020 wait_queue_head_t buf_writers; /**< Processes waiting to ctx switch */
1022 struct drm_agp_head *agp; /**< AGP data */
1024 struct device *dev; /**< Device structure */
1025 struct pci_dev *pdev; /**< PCI device structure */
1026 int pci_vendor; /**< PCI vendor id */
1027 int pci_device; /**< PCI device id */
1029 struct pci_controller *hose;
1032 struct platform_device *platformdev; /**< Platform device struture */
1034 struct drm_sg_mem *sg; /**< Scatter gather memory */
1035 int num_crtcs; /**< Number of CRTCs on this device */
1036 void *dev_private; /**< device private data */
1038 struct address_space *dev_mapping;
1039 struct drm_sigdata sigdata; /**< For block_all_signals */
1042 struct drm_driver *driver;
1043 struct drm_local_map *agp_buffer_map;
1044 unsigned int agp_buffer_token;
1045 struct drm_minor *control; /**< Control node for card */
1046 struct drm_minor *primary; /**< render type primary screen head */
1048 /** \name Drawable information */
1050 spinlock_t drw_lock;
1054 struct drm_mode_config mode_config; /**< Current mode config */
1056 /** \name GEM information */
1058 spinlock_t object_name_lock;
1059 struct idr object_name_idr;
1060 atomic_t object_count;
1061 atomic_t object_memory;
1063 atomic_t pin_memory;
1065 atomic_t gtt_memory;
1067 uint32_t invalidate_domains; /* domains pending invalidation */
1068 uint32_t flush_domains; /* domains pending flush */
1073 static __inline__ int drm_core_check_feature(struct drm_device *dev,
1076 return ((dev->driver->driver_features & feature) ? 1 : 0);
1080 static inline int drm_dev_to_irq(struct drm_device *dev)
1082 if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE))
1083 return platform_get_irq(dev->platformdev, 0);
1085 return dev->pdev->irq;
1089 #define drm_get_pci_domain(dev) dev->hose->index
1091 #define drm_get_pci_domain(dev) 0
1095 static inline int drm_core_has_AGP(struct drm_device *dev)
1097 return drm_core_check_feature(dev, DRIVER_USE_AGP);
1100 #define drm_core_has_AGP(dev) (0)
1104 static inline int drm_core_has_MTRR(struct drm_device *dev)
1106 return drm_core_check_feature(dev, DRIVER_USE_MTRR);
1109 #define DRM_MTRR_WC MTRR_TYPE_WRCOMB
1111 static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
1114 return mtrr_add(offset, size, flags, 1);
1117 static inline int drm_mtrr_del(int handle, unsigned long offset,
1118 unsigned long size, unsigned int flags)
1120 return mtrr_del(handle, offset, size);
1124 #define drm_core_has_MTRR(dev) (0)
1126 #define DRM_MTRR_WC 0
1128 static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
1134 static inline int drm_mtrr_del(int handle, unsigned long offset,
1135 unsigned long size, unsigned int flags)
1141 /******************************************************************/
1142 /** \name Internal function definitions */
1145 /* Driver support (drm_drv.h) */
1146 extern int drm_init(struct drm_driver *driver);
1147 extern void drm_exit(struct drm_driver *driver);
1148 extern long drm_ioctl(struct file *filp,
1149 unsigned int cmd, unsigned long arg);
1150 extern long drm_compat_ioctl(struct file *filp,
1151 unsigned int cmd, unsigned long arg);
1152 extern int drm_lastclose(struct drm_device *dev);
1154 /* Device support (drm_fops.h) */
1155 extern int drm_open(struct inode *inode, struct file *filp);
1156 extern int drm_stub_open(struct inode *inode, struct file *filp);
1157 extern int drm_fasync(int fd, struct file *filp, int on);
1158 extern ssize_t drm_read(struct file *filp, char __user *buffer,
1159 size_t count, loff_t *offset);
1160 extern int drm_release(struct inode *inode, struct file *filp);
1162 /* Mapping support (drm_vm.h) */
1163 extern int drm_mmap(struct file *filp, struct vm_area_struct *vma);
1164 extern int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma);
1165 extern void drm_vm_open_locked(struct vm_area_struct *vma);
1166 extern resource_size_t drm_core_get_map_ofs(struct drm_local_map * map);
1167 extern resource_size_t drm_core_get_reg_ofs(struct drm_device *dev);
1168 extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait);
1170 /* Memory management support (drm_memory.h) */
1171 #include "drm_memory.h"
1172 extern void drm_mem_init(void);
1173 extern int drm_mem_info(char *buf, char **start, off_t offset,
1174 int request, int *eof, void *data);
1175 extern void *drm_realloc(void *oldpt, size_t oldsize, size_t size, int area);
1177 extern DRM_AGP_MEM *drm_alloc_agp(struct drm_device *dev, int pages, u32 type);
1178 extern int drm_free_agp(DRM_AGP_MEM * handle, int pages);
1179 extern int drm_bind_agp(DRM_AGP_MEM * handle, unsigned int start);
1180 extern DRM_AGP_MEM *drm_agp_bind_pages(struct drm_device *dev,
1181 struct page **pages,
1182 unsigned long num_pages,
1183 uint32_t gtt_offset,
1185 extern int drm_unbind_agp(DRM_AGP_MEM * handle);
1187 /* Misc. IOCTL support (drm_ioctl.h) */
1188 extern int drm_irq_by_busid(struct drm_device *dev, void *data,
1189 struct drm_file *file_priv);
1190 extern int drm_getunique(struct drm_device *dev, void *data,
1191 struct drm_file *file_priv);
1192 extern int drm_setunique(struct drm_device *dev, void *data,
1193 struct drm_file *file_priv);
1194 extern int drm_getmap(struct drm_device *dev, void *data,
1195 struct drm_file *file_priv);
1196 extern int drm_getclient(struct drm_device *dev, void *data,
1197 struct drm_file *file_priv);
1198 extern int drm_getstats(struct drm_device *dev, void *data,
1199 struct drm_file *file_priv);
1200 extern int drm_setversion(struct drm_device *dev, void *data,
1201 struct drm_file *file_priv);
1202 extern int drm_noop(struct drm_device *dev, void *data,
1203 struct drm_file *file_priv);
1205 /* Context IOCTL support (drm_context.h) */
1206 extern int drm_resctx(struct drm_device *dev, void *data,
1207 struct drm_file *file_priv);
1208 extern int drm_addctx(struct drm_device *dev, void *data,
1209 struct drm_file *file_priv);
1210 extern int drm_modctx(struct drm_device *dev, void *data,
1211 struct drm_file *file_priv);
1212 extern int drm_getctx(struct drm_device *dev, void *data,
1213 struct drm_file *file_priv);
1214 extern int drm_switchctx(struct drm_device *dev, void *data,
1215 struct drm_file *file_priv);
1216 extern int drm_newctx(struct drm_device *dev, void *data,
1217 struct drm_file *file_priv);
1218 extern int drm_rmctx(struct drm_device *dev, void *data,
1219 struct drm_file *file_priv);
1221 extern int drm_ctxbitmap_init(struct drm_device *dev);
1222 extern void drm_ctxbitmap_cleanup(struct drm_device *dev);
1223 extern void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
1225 extern int drm_setsareactx(struct drm_device *dev, void *data,
1226 struct drm_file *file_priv);
1227 extern int drm_getsareactx(struct drm_device *dev, void *data,
1228 struct drm_file *file_priv);
1230 /* Drawable IOCTL support (drm_drawable.h) */
1231 extern int drm_adddraw(struct drm_device *dev, void *data,
1232 struct drm_file *file_priv);
1233 extern int drm_rmdraw(struct drm_device *dev, void *data,
1234 struct drm_file *file_priv);
1235 extern int drm_update_drawable_info(struct drm_device *dev, void *data,
1236 struct drm_file *file_priv);
1237 extern struct drm_drawable_info *drm_get_drawable_info(struct drm_device *dev,
1239 extern void drm_drawable_free_all(struct drm_device *dev);
1241 /* Authentication IOCTL support (drm_auth.h) */
1242 extern int drm_getmagic(struct drm_device *dev, void *data,
1243 struct drm_file *file_priv);
1244 extern int drm_authmagic(struct drm_device *dev, void *data,
1245 struct drm_file *file_priv);
1247 /* Cache management (drm_cache.c) */
1248 void drm_clflush_pages(struct page *pages[], unsigned long num_pages);
1250 /* Locking IOCTL support (drm_lock.h) */
1251 extern int drm_lock(struct drm_device *dev, void *data,
1252 struct drm_file *file_priv);
1253 extern int drm_unlock(struct drm_device *dev, void *data,
1254 struct drm_file *file_priv);
1255 extern int drm_lock_take(struct drm_lock_data *lock_data, unsigned int context);
1256 extern int drm_lock_free(struct drm_lock_data *lock_data, unsigned int context);
1257 extern void drm_idlelock_take(struct drm_lock_data *lock_data);
1258 extern void drm_idlelock_release(struct drm_lock_data *lock_data);
1261 * These are exported to drivers so that they can implement fencing using
1262 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
1265 extern int drm_i_have_hw_lock(struct drm_device *dev, struct drm_file *file_priv);
1267 /* Buffer management support (drm_bufs.h) */
1268 extern int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc * request);
1269 extern int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc * request);
1270 extern int drm_addmap(struct drm_device *dev, resource_size_t offset,
1271 unsigned int size, enum drm_map_type type,
1272 enum drm_map_flags flags, struct drm_local_map **map_ptr);
1273 extern int drm_addmap_ioctl(struct drm_device *dev, void *data,
1274 struct drm_file *file_priv);
1275 extern int drm_rmmap(struct drm_device *dev, struct drm_local_map *map);
1276 extern int drm_rmmap_locked(struct drm_device *dev, struct drm_local_map *map);
1277 extern int drm_rmmap_ioctl(struct drm_device *dev, void *data,
1278 struct drm_file *file_priv);
1279 extern int drm_addbufs(struct drm_device *dev, void *data,
1280 struct drm_file *file_priv);
1281 extern int drm_infobufs(struct drm_device *dev, void *data,
1282 struct drm_file *file_priv);
1283 extern int drm_markbufs(struct drm_device *dev, void *data,
1284 struct drm_file *file_priv);
1285 extern int drm_freebufs(struct drm_device *dev, void *data,
1286 struct drm_file *file_priv);
1287 extern int drm_mapbufs(struct drm_device *dev, void *data,
1288 struct drm_file *file_priv);
1289 extern int drm_order(unsigned long size);
1291 /* DMA support (drm_dma.h) */
1292 extern int drm_dma_setup(struct drm_device *dev);
1293 extern void drm_dma_takedown(struct drm_device *dev);
1294 extern void drm_free_buffer(struct drm_device *dev, struct drm_buf * buf);
1295 extern void drm_core_reclaim_buffers(struct drm_device *dev,
1296 struct drm_file *filp);
1298 /* IRQ support (drm_irq.h) */
1299 extern int drm_control(struct drm_device *dev, void *data,
1300 struct drm_file *file_priv);
1301 extern irqreturn_t drm_irq_handler(DRM_IRQ_ARGS);
1302 extern int drm_irq_install(struct drm_device *dev);
1303 extern int drm_irq_uninstall(struct drm_device *dev);
1304 extern void drm_driver_irq_preinstall(struct drm_device *dev);
1305 extern void drm_driver_irq_postinstall(struct drm_device *dev);
1306 extern void drm_driver_irq_uninstall(struct drm_device *dev);
1308 extern int drm_vblank_init(struct drm_device *dev, int num_crtcs);
1309 extern int drm_wait_vblank(struct drm_device *dev, void *data,
1310 struct drm_file *filp);
1311 extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq);
1312 extern u32 drm_vblank_count(struct drm_device *dev, int crtc);
1313 extern void drm_handle_vblank(struct drm_device *dev, int crtc);
1314 extern int drm_vblank_get(struct drm_device *dev, int crtc);
1315 extern void drm_vblank_put(struct drm_device *dev, int crtc);
1316 extern void drm_vblank_off(struct drm_device *dev, int crtc);
1317 extern void drm_vblank_cleanup(struct drm_device *dev);
1318 /* Modesetting support */
1319 extern void drm_vblank_pre_modeset(struct drm_device *dev, int crtc);
1320 extern void drm_vblank_post_modeset(struct drm_device *dev, int crtc);
1321 extern int drm_modeset_ctl(struct drm_device *dev, void *data,
1322 struct drm_file *file_priv);
1324 /* AGP/GART support (drm_agpsupport.h) */
1325 extern struct drm_agp_head *drm_agp_init(struct drm_device *dev);
1326 extern int drm_agp_acquire(struct drm_device *dev);
1327 extern int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
1328 struct drm_file *file_priv);
1329 extern int drm_agp_release(struct drm_device *dev);
1330 extern int drm_agp_release_ioctl(struct drm_device *dev, void *data,
1331 struct drm_file *file_priv);
1332 extern int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode);
1333 extern int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
1334 struct drm_file *file_priv);
1335 extern int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info);
1336 extern int drm_agp_info_ioctl(struct drm_device *dev, void *data,
1337 struct drm_file *file_priv);
1338 extern int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request);
1339 extern int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
1340 struct drm_file *file_priv);
1341 extern int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request);
1342 extern int drm_agp_free_ioctl(struct drm_device *dev, void *data,
1343 struct drm_file *file_priv);
1344 extern int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request);
1345 extern int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
1346 struct drm_file *file_priv);
1347 extern int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
1348 extern int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
1349 struct drm_file *file_priv);
1350 extern DRM_AGP_MEM *drm_agp_allocate_memory(struct agp_bridge_data *bridge, size_t pages, u32 type);
1351 extern int drm_agp_free_memory(DRM_AGP_MEM * handle);
1352 extern int drm_agp_bind_memory(DRM_AGP_MEM * handle, off_t start);
1353 extern int drm_agp_unbind_memory(DRM_AGP_MEM * handle);
1354 extern void drm_agp_chipset_flush(struct drm_device *dev);
1356 /* Stub support (drm_stub.h) */
1357 extern int drm_setmaster_ioctl(struct drm_device *dev, void *data,
1358 struct drm_file *file_priv);
1359 extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
1360 struct drm_file *file_priv);
1361 struct drm_master *drm_master_create(struct drm_minor *minor);
1362 extern struct drm_master *drm_master_get(struct drm_master *master);
1363 extern void drm_master_put(struct drm_master **master);
1364 extern int drm_get_pci_dev(struct pci_dev *pdev,
1365 const struct pci_device_id *ent,
1366 struct drm_driver *driver);
1367 extern int drm_get_platform_dev(struct platform_device *pdev,
1368 struct drm_driver *driver);
1369 extern void drm_put_dev(struct drm_device *dev);
1370 extern int drm_put_minor(struct drm_minor **minor);
1371 extern unsigned int drm_debug;
1373 extern struct class *drm_class;
1374 extern struct proc_dir_entry *drm_proc_root;
1375 extern struct dentry *drm_debugfs_root;
1377 extern struct idr drm_minors_idr;
1379 extern struct drm_local_map *drm_getsarea(struct drm_device *dev);
1381 /* Proc support (drm_proc.h) */
1382 extern int drm_proc_init(struct drm_minor *minor, int minor_id,
1383 struct proc_dir_entry *root);
1384 extern int drm_proc_cleanup(struct drm_minor *minor, struct proc_dir_entry *root);
1386 /* Debugfs support */
1387 #if defined(CONFIG_DEBUG_FS)
1388 extern int drm_debugfs_init(struct drm_minor *minor, int minor_id,
1389 struct dentry *root);
1390 extern int drm_debugfs_create_files(struct drm_info_list *files, int count,
1391 struct dentry *root, struct drm_minor *minor);
1392 extern int drm_debugfs_remove_files(struct drm_info_list *files, int count,
1393 struct drm_minor *minor);
1394 extern int drm_debugfs_cleanup(struct drm_minor *minor);
1397 /* Info file support */
1398 extern int drm_name_info(struct seq_file *m, void *data);
1399 extern int drm_vm_info(struct seq_file *m, void *data);
1400 extern int drm_queues_info(struct seq_file *m, void *data);
1401 extern int drm_bufs_info(struct seq_file *m, void *data);
1402 extern int drm_vblank_info(struct seq_file *m, void *data);
1403 extern int drm_clients_info(struct seq_file *m, void* data);
1404 extern int drm_gem_name_info(struct seq_file *m, void *data);
1405 extern int drm_gem_object_info(struct seq_file *m, void* data);
1408 extern int drm_vma_info(struct seq_file *m, void *data);
1411 /* Scatter Gather Support (drm_scatter.h) */
1412 extern void drm_sg_cleanup(struct drm_sg_mem * entry);
1413 extern int drm_sg_alloc_ioctl(struct drm_device *dev, void *data,
1414 struct drm_file *file_priv);
1415 extern int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request);
1416 extern int drm_sg_free(struct drm_device *dev, void *data,
1417 struct drm_file *file_priv);
1419 /* ATI PCIGART support (ati_pcigart.h) */
1420 extern int drm_ati_pcigart_init(struct drm_device *dev,
1421 struct drm_ati_pcigart_info * gart_info);
1422 extern int drm_ati_pcigart_cleanup(struct drm_device *dev,
1423 struct drm_ati_pcigart_info * gart_info);
1425 extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
1427 extern void __drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
1428 extern void drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
1430 /* sysfs support (drm_sysfs.c) */
1431 struct drm_sysfs_class;
1432 extern struct class *drm_sysfs_create(struct module *owner, char *name);
1433 extern void drm_sysfs_destroy(void);
1434 extern int drm_sysfs_device_add(struct drm_minor *minor);
1435 extern void drm_sysfs_hotplug_event(struct drm_device *dev);
1436 extern void drm_sysfs_device_remove(struct drm_minor *minor);
1437 extern char *drm_get_connector_status_name(enum drm_connector_status status);
1438 extern int drm_sysfs_connector_add(struct drm_connector *connector);
1439 extern void drm_sysfs_connector_remove(struct drm_connector *connector);
1441 /* Graphics Execution Manager library functions (drm_gem.c) */
1442 int drm_gem_init(struct drm_device *dev);
1443 void drm_gem_destroy(struct drm_device *dev);
1444 void drm_gem_object_release(struct drm_gem_object *obj);
1445 void drm_gem_object_free(struct kref *kref);
1446 void drm_gem_object_free_unlocked(struct kref *kref);
1447 struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev,
1449 int drm_gem_object_init(struct drm_device *dev,
1450 struct drm_gem_object *obj, size_t size);
1451 void drm_gem_object_handle_free(struct kref *kref);
1452 void drm_gem_vm_open(struct vm_area_struct *vma);
1453 void drm_gem_vm_close(struct vm_area_struct *vma);
1454 int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
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)
1466 kref_put(&obj->refcount, drm_gem_object_free);
1470 drm_gem_object_unreference_unlocked(struct drm_gem_object *obj)
1473 kref_put(&obj->refcount, drm_gem_object_free_unlocked);
1476 int drm_gem_handle_create(struct drm_file *file_priv,
1477 struct drm_gem_object *obj,
1481 drm_gem_object_handle_reference(struct drm_gem_object *obj)
1483 drm_gem_object_reference(obj);
1484 kref_get(&obj->handlecount);
1488 drm_gem_object_handle_unreference(struct drm_gem_object *obj)
1494 * Must bump handle count first as this may be the last
1495 * ref, in which case the object would disappear before we
1496 * checked for a name
1498 kref_put(&obj->handlecount, drm_gem_object_handle_free);
1499 drm_gem_object_unreference(obj);
1503 drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj)
1509 * Must bump handle count first as this may be the last
1510 * ref, in which case the object would disappear before we
1511 * checked for a name
1513 kref_put(&obj->handlecount, drm_gem_object_handle_free);
1514 drm_gem_object_unreference_unlocked(obj);
1517 struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev,
1518 struct drm_file *filp,
1520 int drm_gem_close_ioctl(struct drm_device *dev, void *data,
1521 struct drm_file *file_priv);
1522 int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
1523 struct drm_file *file_priv);
1524 int drm_gem_open_ioctl(struct drm_device *dev, void *data,
1525 struct drm_file *file_priv);
1526 void drm_gem_open(struct drm_device *dev, struct drm_file *file_private);
1527 void drm_gem_release(struct drm_device *dev, struct drm_file *file_private);
1529 extern void drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev);
1530 extern void drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev);
1531 extern void drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev);
1533 static __inline__ struct drm_local_map *drm_core_findmap(struct drm_device *dev,
1536 struct drm_map_list *_entry;
1537 list_for_each_entry(_entry, &dev->maplist, head)
1538 if (_entry->user_token == token)
1543 static __inline__ int drm_device_is_agp(struct drm_device *dev)
1545 if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE))
1548 if (dev->driver->device_is_agp != NULL) {
1549 int err = (*dev->driver->device_is_agp) (dev);
1556 return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP);
1559 static __inline__ int drm_device_is_pcie(struct drm_device *dev)
1561 if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE))
1564 return pci_find_capability(dev->pdev, PCI_CAP_ID_EXP);
1567 static __inline__ void drm_core_dropmap(struct drm_local_map *map)
1571 #include "drm_mem_util.h"
1573 static inline void *drm_get_device(struct drm_device *dev)
1575 if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE))
1576 return dev->platformdev;
1581 extern int drm_platform_init(struct drm_driver *driver);
1582 extern int drm_pci_init(struct drm_driver *driver);
1583 extern int drm_fill_in_dev(struct drm_device *dev,
1584 const struct pci_device_id *ent,
1585 struct drm_driver *driver);
1586 int drm_get_minor(struct drm_device *dev, struct drm_minor **minor, int type);
1589 #endif /* __KERNEL__ */