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 void (*destroy)(struct drm_pending_event *event);
412 /** File private data */
418 unsigned long ioctl_count;
419 struct list_head lhead;
420 struct drm_minor *minor;
421 unsigned long lock_count;
423 /** Mapping of mm object handles to object pointers. */
424 struct idr object_idr;
425 /** Lock for synchronization of access to object_idr. */
426 spinlock_t table_lock;
431 int is_master; /* this file private is a master for a minor */
432 struct drm_master *master; /* master this node is currently associated with
433 N.B. not always minor->master */
434 struct list_head fbs;
436 wait_queue_head_t event_wait;
437 struct list_head event_list;
443 atomic_t use_count; /**< Outstanding uses (+1) */
444 atomic_t finalization; /**< Finalization in progress */
445 atomic_t block_count; /**< Count of processes waiting */
446 atomic_t block_read; /**< Queue blocked for reads */
447 wait_queue_head_t read_queue; /**< Processes waiting on block_read */
448 atomic_t block_write; /**< Queue blocked for writes */
449 wait_queue_head_t write_queue; /**< Processes waiting on block_write */
450 atomic_t total_queued; /**< Total queued statistic */
451 atomic_t total_flushed; /**< Total flushes statistic */
452 atomic_t total_locks; /**< Total locks statistics */
453 enum drm_ctx_flags flags; /**< Context preserving and 2D-only */
454 struct drm_waitlist waitlist; /**< Pending buffers */
455 wait_queue_head_t flush_queue; /**< Processes waiting until flush */
461 struct drm_lock_data {
462 struct drm_hw_lock *hw_lock; /**< Hardware lock */
463 /** Private of lock holder's file (NULL=kernel) */
464 struct drm_file *file_priv;
465 wait_queue_head_t lock_queue; /**< Queue of blocked processes */
466 unsigned long lock_time; /**< Time of last lock in jiffies */
468 uint32_t kernel_waiters;
469 uint32_t user_waiters;
476 struct drm_device_dma {
478 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */
479 int buf_count; /**< total number of buffers */
480 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */
482 int page_count; /**< number of pages */
483 unsigned long *pagelist; /**< page list */
484 unsigned long byte_count;
486 _DRM_DMA_USE_AGP = 0x01,
487 _DRM_DMA_USE_SG = 0x02,
488 _DRM_DMA_USE_FB = 0x04,
489 _DRM_DMA_USE_PCI_RO = 0x08
495 * AGP memory entry. Stored as a doubly linked list.
498 unsigned long handle; /**< handle */
500 unsigned long bound; /**< address */
502 struct list_head head;
508 * \sa drm_agp_init() and drm_device::agp.
510 struct drm_agp_head {
511 DRM_AGP_KERN agp_info; /**< AGP device information */
512 struct list_head memory;
513 unsigned long mode; /**< AGP mode */
514 struct agp_bridge_data *bridge;
515 int enabled; /**< whether the AGP bus as been enabled */
516 int acquired; /**< whether the AGP device has been acquired */
519 int cant_use_aperture;
520 unsigned long page_mask;
524 * Scatter-gather memory.
527 unsigned long handle;
530 struct page **pagelist;
536 struct drm_hw_lock *lock;
541 * Kernel side of a mapping
543 struct drm_local_map {
544 resource_size_t offset; /**< Requested physical address (0 for SAREA)*/
545 unsigned long size; /**< Requested physical size (bytes) */
546 enum drm_map_type type; /**< Type of memory to map */
547 enum drm_map_flags flags; /**< Flags */
548 void *handle; /**< User-space: "Handle" to pass to mmap() */
549 /**< Kernel-space: kernel-virtual address */
550 int mtrr; /**< MTRR slot used */
553 typedef struct drm_local_map drm_local_map_t;
558 struct drm_map_list {
559 struct list_head head; /**< list head */
560 struct drm_hash_item hash;
561 struct drm_local_map *map; /**< mapping */
563 struct drm_master *master;
564 struct drm_mm_node *file_offset_node; /**< fake offset */
568 * Context handle list
570 struct drm_ctx_list {
571 struct list_head head; /**< list head */
572 drm_context_t handle; /**< context handle */
573 struct drm_file *tag; /**< associated fd private data */
576 /* location of GART table */
577 #define DRM_ATI_GART_MAIN 1
578 #define DRM_ATI_GART_FB 2
580 #define DRM_ATI_GART_PCI 1
581 #define DRM_ATI_GART_PCIE 2
582 #define DRM_ATI_GART_IGP 3
584 struct drm_ati_pcigart_info {
585 int gart_table_location;
589 dma_addr_t table_mask;
590 struct drm_dma_handle *table_handle;
591 struct drm_local_map mapping;
596 * GEM specific mm private for tracking GEM objects
599 struct drm_mm offset_manager; /**< Offset mgmt for buffer objects */
600 struct drm_open_hash offset_hash; /**< User token hash table for maps */
604 * This structure defines the drm_mm memory object, which will be used by the
605 * DRM for its buffer objects.
607 struct drm_gem_object {
608 /** Reference count of this object */
609 struct kref refcount;
611 /** Handle count of this object. Each handle also holds a reference */
612 struct kref handlecount;
614 /** Related drm device */
615 struct drm_device *dev;
617 /** File representing the shmem storage */
620 /* Mapping info for this object */
621 struct drm_map_list map_list;
624 * Size of the object, in bytes. Immutable over the object's
630 * Global name for this object, starts at 1. 0 means unnamed.
631 * Access is covered by the object_name_lock in the related drm_device
636 * Memory domains. These monitor which caches contain read/write data
637 * related to the object. When transitioning from one set of domains
638 * to another, the driver is called to ensure that caches are suitably
639 * flushed and invalidated
641 uint32_t read_domains;
642 uint32_t write_domain;
645 * While validating an exec operation, the
646 * new read/write domain values are computed here.
647 * They will be transferred to the above values
648 * at the point that any cache flushing occurs
650 uint32_t pending_read_domains;
651 uint32_t pending_write_domain;
653 void *driver_private;
656 #include "drm_crtc.h"
658 /* per-master structure */
661 struct kref refcount; /* refcount for this master */
663 struct list_head head; /**< each minor contains a list of masters */
664 struct drm_minor *minor; /**< link back to minor we are a master for */
666 char *unique; /**< Unique identifier: e.g., busid */
667 int unique_len; /**< Length of unique field */
668 int unique_size; /**< amount allocated */
670 int blocked; /**< Blocked due to VC switch? */
672 /** \name Authentication */
674 struct drm_open_hash magiclist;
675 struct list_head magicfree;
678 struct drm_lock_data lock; /**< Information on hardware lock */
680 void *driver_priv; /**< Private structure for driver to use */
684 * DRM driver structure. This structure represent the common code for
685 * a family of cards. There will one drm_device for each card present
689 int (*load) (struct drm_device *, unsigned long flags);
690 int (*firstopen) (struct drm_device *);
691 int (*open) (struct drm_device *, struct drm_file *);
692 void (*preclose) (struct drm_device *, struct drm_file *file_priv);
693 void (*postclose) (struct drm_device *, struct drm_file *);
694 void (*lastclose) (struct drm_device *);
695 int (*unload) (struct drm_device *);
696 int (*suspend) (struct drm_device *, pm_message_t state);
697 int (*resume) (struct drm_device *);
698 int (*dma_ioctl) (struct drm_device *dev, void *data, struct drm_file *file_priv);
699 void (*dma_ready) (struct drm_device *);
700 int (*dma_quiescent) (struct drm_device *);
701 int (*context_ctor) (struct drm_device *dev, int context);
702 int (*context_dtor) (struct drm_device *dev, int context);
703 int (*kernel_context_switch) (struct drm_device *dev, int old,
705 void (*kernel_context_switch_unlock) (struct drm_device *dev);
708 * get_vblank_counter - get raw hardware vblank counter
710 * @crtc: counter to fetch
712 * Driver callback for fetching a raw hardware vblank counter
713 * for @crtc. If a device doesn't have a hardware counter, the
714 * driver can simply return the value of drm_vblank_count and
715 * make the enable_vblank() and disable_vblank() hooks into no-ops,
716 * leaving interrupts enabled at all times.
718 * Wraparound handling and loss of events due to modesetting is dealt
719 * with in the DRM core code.
722 * Raw vblank counter value.
724 u32 (*get_vblank_counter) (struct drm_device *dev, int crtc);
727 * enable_vblank - enable vblank interrupt events
729 * @crtc: which irq to enable
731 * Enable vblank interrupts for @crtc. If the device doesn't have
732 * a hardware vblank counter, this routine should be a no-op, since
733 * interrupts will have to stay on to keep the count accurate.
736 * Zero on success, appropriate errno if the given @crtc's vblank
737 * interrupt cannot be enabled.
739 int (*enable_vblank) (struct drm_device *dev, int crtc);
742 * disable_vblank - disable vblank interrupt events
744 * @crtc: which irq to enable
746 * Disable vblank interrupts for @crtc. If the device doesn't have
747 * a hardware vblank counter, this routine should be a no-op, since
748 * interrupts will have to stay on to keep the count accurate.
750 void (*disable_vblank) (struct drm_device *dev, int crtc);
753 * Called by \c drm_device_is_agp. Typically used to determine if a
754 * card is really attached to AGP or not.
756 * \param dev DRM device handle
759 * One of three values is returned depending on whether or not the
760 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
761 * (return of 1), or may or may not be AGP (return of 2).
763 int (*device_is_agp) (struct drm_device *dev);
765 /* these have to be filled in */
767 irqreturn_t(*irq_handler) (DRM_IRQ_ARGS);
768 void (*irq_preinstall) (struct drm_device *dev);
769 int (*irq_postinstall) (struct drm_device *dev);
770 void (*irq_uninstall) (struct drm_device *dev);
771 void (*reclaim_buffers) (struct drm_device *dev,
772 struct drm_file * file_priv);
773 void (*reclaim_buffers_locked) (struct drm_device *dev,
774 struct drm_file *file_priv);
775 void (*reclaim_buffers_idlelocked) (struct drm_device *dev,
776 struct drm_file *file_priv);
777 resource_size_t (*get_map_ofs) (struct drm_local_map * map);
778 resource_size_t (*get_reg_ofs) (struct drm_device *dev);
779 void (*set_version) (struct drm_device *dev,
780 struct drm_set_version *sv);
782 /* Master routines */
783 int (*master_create)(struct drm_device *dev, struct drm_master *master);
784 void (*master_destroy)(struct drm_device *dev, struct drm_master *master);
786 * master_set is called whenever the minor master is set.
787 * master_drop is called whenever the minor master is dropped.
790 int (*master_set)(struct drm_device *dev, struct drm_file *file_priv,
792 void (*master_drop)(struct drm_device *dev, struct drm_file *file_priv,
795 int (*proc_init)(struct drm_minor *minor);
796 void (*proc_cleanup)(struct drm_minor *minor);
797 int (*debugfs_init)(struct drm_minor *minor);
798 void (*debugfs_cleanup)(struct drm_minor *minor);
801 * Driver-specific constructor for drm_gem_objects, to set up
802 * obj->driver_private.
804 * Returns 0 on success.
806 int (*gem_init_object) (struct drm_gem_object *obj);
807 void (*gem_free_object) (struct drm_gem_object *obj);
808 void (*gem_free_object_unlocked) (struct drm_gem_object *obj);
810 /* vga arb irq handler */
811 void (*vgaarb_irq)(struct drm_device *dev, bool state);
813 /* Driver private ops for this object */
814 struct vm_operations_struct *gem_vm_ops;
825 struct drm_ioctl_desc *ioctls;
827 struct file_operations fops;
828 struct pci_driver pci_driver;
829 struct platform_device *platform_device;
830 /* List of devices hanging off this driver */
831 struct list_head device_list;
834 #define DRM_MINOR_UNASSIGNED 0
835 #define DRM_MINOR_LEGACY 1
836 #define DRM_MINOR_CONTROL 2
837 #define DRM_MINOR_RENDER 3
841 * debugfs node list. This structure represents a debugfs file to
842 * be created by the drm core
844 struct drm_debugfs_list {
845 const char *name; /** file name */
846 int (*show)(struct seq_file*, void*); /** show callback */
847 u32 driver_features; /**< Required driver features for this entry */
851 * debugfs node structure. This structure represents a debugfs file.
853 struct drm_debugfs_node {
854 struct list_head list;
855 struct drm_minor *minor;
856 struct drm_debugfs_list *debugfs_ent;
861 * Info file list entry. This structure represents a debugfs or proc file to
862 * be created by the drm core
864 struct drm_info_list {
865 const char *name; /** file name */
866 int (*show)(struct seq_file*, void*); /** show callback */
867 u32 driver_features; /**< Required driver features for this entry */
872 * debugfs node structure. This structure represents a debugfs file.
874 struct drm_info_node {
875 struct list_head list;
876 struct drm_minor *minor;
877 struct drm_info_list *info_ent;
882 * DRM minor structure. This structure represents a drm minor number.
885 int index; /**< Minor device number */
886 int type; /**< Control or render */
887 dev_t device; /**< Device number for mknod */
888 struct device kdev; /**< Linux device */
889 struct drm_device *dev;
891 struct proc_dir_entry *proc_root; /**< proc directory entry */
892 struct drm_info_node proc_nodes;
893 struct dentry *debugfs_root;
894 struct drm_info_node debugfs_nodes;
896 struct drm_master *master; /* currently active master for this node */
897 struct list_head master_list;
898 struct drm_mode_group mode_group;
901 struct drm_pending_vblank_event {
902 struct drm_pending_event base;
904 struct drm_event_vblank event;
908 * DRM device structure. This structure represent a complete card that
909 * may contain multiple heads.
912 struct list_head driver_item; /**< list of devices per driver */
913 char *devname; /**< For /proc/interrupts */
914 int if_version; /**< Highest interface version set */
918 spinlock_t count_lock; /**< For inuse, drm_device::open_count, drm_device::buf_use */
919 struct mutex struct_mutex; /**< For others */
922 /** \name Usage Counters */
924 int open_count; /**< Outstanding files open */
925 atomic_t ioctl_count; /**< Outstanding IOCTLs pending */
926 atomic_t vma_count; /**< Outstanding vma areas open */
927 int buf_use; /**< Buffers in use -- cannot alloc */
928 atomic_t buf_alloc; /**< Buffer allocation in progress */
931 /** \name Performance counters */
933 unsigned long counters;
934 enum drm_stat_type types[15];
938 struct list_head filelist;
940 /** \name Memory management */
942 struct list_head maplist; /**< Linked list of regions */
943 int map_count; /**< Number of mappable regions */
944 struct drm_open_hash map_hash; /**< User token hash table for maps */
946 /** \name Context handle management */
948 struct list_head ctxlist; /**< Linked list of context handles */
949 int ctx_count; /**< Number of context handles */
950 struct mutex ctxlist_mutex; /**< For ctxlist */
954 struct list_head vmalist; /**< List of vmas (for debugging) */
958 /** \name DMA queues (contexts) */
960 int queue_count; /**< Number of active DMA queues */
961 int queue_reserved; /**< Number of reserved DMA queues */
962 int queue_slots; /**< Actual length of queuelist */
963 struct drm_queue **queuelist; /**< Vector of pointers to DMA queues */
964 struct drm_device_dma *dma; /**< Optional pointer for DMA support */
967 /** \name Context support */
969 int irq_enabled; /**< True if irq handler is enabled */
970 __volatile__ long context_flag; /**< Context swapping flag */
971 __volatile__ long interrupt_flag; /**< Interruption handler flag */
972 __volatile__ long dma_flag; /**< DMA dispatch flag */
973 struct timer_list timer; /**< Timer for delaying ctx switch */
974 wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */
975 int last_checked; /**< Last context checked for DMA */
976 int last_context; /**< Last current context */
977 unsigned long last_switch; /**< jiffies at last context switch */
980 struct work_struct work;
981 /** \name VBLANK IRQ support */
985 * At load time, disabling the vblank interrupt won't be allowed since
986 * old clients may not call the modeset ioctl and therefore misbehave.
987 * Once the modeset ioctl *has* been called though, we can safely
988 * disable them when unused.
990 int vblank_disable_allowed;
992 wait_queue_head_t *vbl_queue; /**< VBLANK wait queue */
993 atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */
995 atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */
996 u32 *last_vblank; /* protected by dev->vbl_lock, used */
997 /* for wraparound handling */
998 int *vblank_enabled; /* so we don't call enable more than
1000 int *vblank_inmodeset; /* Display driver is setting mode */
1001 u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */
1002 struct timer_list vblank_disable_timer;
1004 u32 max_vblank_count; /**< size of vblank counter register */
1009 struct list_head vblank_event_list;
1010 spinlock_t event_lock;
1016 struct fasync_struct *buf_async;/**< Processes waiting for SIGIO */
1017 wait_queue_head_t buf_readers; /**< Processes waiting to read */
1018 wait_queue_head_t buf_writers; /**< Processes waiting to ctx switch */
1020 struct drm_agp_head *agp; /**< AGP data */
1022 struct device *dev; /**< Device structure */
1023 struct pci_dev *pdev; /**< PCI device structure */
1024 int pci_vendor; /**< PCI vendor id */
1025 int pci_device; /**< PCI device id */
1027 struct pci_controller *hose;
1030 struct platform_device *platformdev; /**< Platform device struture */
1032 struct drm_sg_mem *sg; /**< Scatter gather memory */
1033 int num_crtcs; /**< Number of CRTCs on this device */
1034 void *dev_private; /**< device private data */
1036 struct address_space *dev_mapping;
1037 struct drm_sigdata sigdata; /**< For block_all_signals */
1040 struct drm_driver *driver;
1041 struct drm_local_map *agp_buffer_map;
1042 unsigned int agp_buffer_token;
1043 struct drm_minor *control; /**< Control node for card */
1044 struct drm_minor *primary; /**< render type primary screen head */
1046 /** \name Drawable information */
1048 spinlock_t drw_lock;
1052 struct drm_mode_config mode_config; /**< Current mode config */
1054 /** \name GEM information */
1056 spinlock_t object_name_lock;
1057 struct idr object_name_idr;
1058 atomic_t object_count;
1059 atomic_t object_memory;
1061 atomic_t pin_memory;
1063 atomic_t gtt_memory;
1065 uint32_t invalidate_domains; /* domains pending invalidation */
1066 uint32_t flush_domains; /* domains pending flush */
1071 static __inline__ int drm_core_check_feature(struct drm_device *dev,
1074 return ((dev->driver->driver_features & feature) ? 1 : 0);
1078 static inline int drm_dev_to_irq(struct drm_device *dev)
1080 if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE))
1081 return platform_get_irq(dev->platformdev, 0);
1083 return dev->pdev->irq;
1087 #define drm_get_pci_domain(dev) dev->hose->index
1089 #define drm_get_pci_domain(dev) 0
1093 static inline int drm_core_has_AGP(struct drm_device *dev)
1095 return drm_core_check_feature(dev, DRIVER_USE_AGP);
1098 #define drm_core_has_AGP(dev) (0)
1102 static inline int drm_core_has_MTRR(struct drm_device *dev)
1104 return drm_core_check_feature(dev, DRIVER_USE_MTRR);
1107 #define DRM_MTRR_WC MTRR_TYPE_WRCOMB
1109 static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
1112 return mtrr_add(offset, size, flags, 1);
1115 static inline int drm_mtrr_del(int handle, unsigned long offset,
1116 unsigned long size, unsigned int flags)
1118 return mtrr_del(handle, offset, size);
1122 #define drm_core_has_MTRR(dev) (0)
1124 #define DRM_MTRR_WC 0
1126 static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
1132 static inline int drm_mtrr_del(int handle, unsigned long offset,
1133 unsigned long size, unsigned int flags)
1139 /******************************************************************/
1140 /** \name Internal function definitions */
1143 /* Driver support (drm_drv.h) */
1144 extern int drm_init(struct drm_driver *driver);
1145 extern void drm_exit(struct drm_driver *driver);
1146 extern long drm_ioctl(struct file *filp,
1147 unsigned int cmd, unsigned long arg);
1148 extern long drm_compat_ioctl(struct file *filp,
1149 unsigned int cmd, unsigned long arg);
1150 extern int drm_lastclose(struct drm_device *dev);
1152 /* Device support (drm_fops.h) */
1153 extern int drm_open(struct inode *inode, struct file *filp);
1154 extern int drm_stub_open(struct inode *inode, struct file *filp);
1155 extern int drm_fasync(int fd, struct file *filp, int on);
1156 extern ssize_t drm_read(struct file *filp, char __user *buffer,
1157 size_t count, loff_t *offset);
1158 extern int drm_release(struct inode *inode, struct file *filp);
1160 /* Mapping support (drm_vm.h) */
1161 extern int drm_mmap(struct file *filp, struct vm_area_struct *vma);
1162 extern int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma);
1163 extern void drm_vm_open_locked(struct vm_area_struct *vma);
1164 extern resource_size_t drm_core_get_map_ofs(struct drm_local_map * map);
1165 extern resource_size_t drm_core_get_reg_ofs(struct drm_device *dev);
1166 extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait);
1168 /* Memory management support (drm_memory.h) */
1169 #include "drm_memory.h"
1170 extern void drm_mem_init(void);
1171 extern int drm_mem_info(char *buf, char **start, off_t offset,
1172 int request, int *eof, void *data);
1173 extern void *drm_realloc(void *oldpt, size_t oldsize, size_t size, int area);
1175 extern DRM_AGP_MEM *drm_alloc_agp(struct drm_device *dev, int pages, u32 type);
1176 extern int drm_free_agp(DRM_AGP_MEM * handle, int pages);
1177 extern int drm_bind_agp(DRM_AGP_MEM * handle, unsigned int start);
1178 extern DRM_AGP_MEM *drm_agp_bind_pages(struct drm_device *dev,
1179 struct page **pages,
1180 unsigned long num_pages,
1181 uint32_t gtt_offset,
1183 extern int drm_unbind_agp(DRM_AGP_MEM * handle);
1185 /* Misc. IOCTL support (drm_ioctl.h) */
1186 extern int drm_irq_by_busid(struct drm_device *dev, void *data,
1187 struct drm_file *file_priv);
1188 extern int drm_getunique(struct drm_device *dev, void *data,
1189 struct drm_file *file_priv);
1190 extern int drm_setunique(struct drm_device *dev, void *data,
1191 struct drm_file *file_priv);
1192 extern int drm_getmap(struct drm_device *dev, void *data,
1193 struct drm_file *file_priv);
1194 extern int drm_getclient(struct drm_device *dev, void *data,
1195 struct drm_file *file_priv);
1196 extern int drm_getstats(struct drm_device *dev, void *data,
1197 struct drm_file *file_priv);
1198 extern int drm_setversion(struct drm_device *dev, void *data,
1199 struct drm_file *file_priv);
1200 extern int drm_noop(struct drm_device *dev, void *data,
1201 struct drm_file *file_priv);
1203 /* Context IOCTL support (drm_context.h) */
1204 extern int drm_resctx(struct drm_device *dev, void *data,
1205 struct drm_file *file_priv);
1206 extern int drm_addctx(struct drm_device *dev, void *data,
1207 struct drm_file *file_priv);
1208 extern int drm_modctx(struct drm_device *dev, void *data,
1209 struct drm_file *file_priv);
1210 extern int drm_getctx(struct drm_device *dev, void *data,
1211 struct drm_file *file_priv);
1212 extern int drm_switchctx(struct drm_device *dev, void *data,
1213 struct drm_file *file_priv);
1214 extern int drm_newctx(struct drm_device *dev, void *data,
1215 struct drm_file *file_priv);
1216 extern int drm_rmctx(struct drm_device *dev, void *data,
1217 struct drm_file *file_priv);
1219 extern int drm_ctxbitmap_init(struct drm_device *dev);
1220 extern void drm_ctxbitmap_cleanup(struct drm_device *dev);
1221 extern void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
1223 extern int drm_setsareactx(struct drm_device *dev, void *data,
1224 struct drm_file *file_priv);
1225 extern int drm_getsareactx(struct drm_device *dev, void *data,
1226 struct drm_file *file_priv);
1228 /* Drawable IOCTL support (drm_drawable.h) */
1229 extern int drm_adddraw(struct drm_device *dev, void *data,
1230 struct drm_file *file_priv);
1231 extern int drm_rmdraw(struct drm_device *dev, void *data,
1232 struct drm_file *file_priv);
1233 extern int drm_update_drawable_info(struct drm_device *dev, void *data,
1234 struct drm_file *file_priv);
1235 extern struct drm_drawable_info *drm_get_drawable_info(struct drm_device *dev,
1237 extern void drm_drawable_free_all(struct drm_device *dev);
1239 /* Authentication IOCTL support (drm_auth.h) */
1240 extern int drm_getmagic(struct drm_device *dev, void *data,
1241 struct drm_file *file_priv);
1242 extern int drm_authmagic(struct drm_device *dev, void *data,
1243 struct drm_file *file_priv);
1245 /* Cache management (drm_cache.c) */
1246 void drm_clflush_pages(struct page *pages[], unsigned long num_pages);
1248 /* Locking IOCTL support (drm_lock.h) */
1249 extern int drm_lock(struct drm_device *dev, void *data,
1250 struct drm_file *file_priv);
1251 extern int drm_unlock(struct drm_device *dev, void *data,
1252 struct drm_file *file_priv);
1253 extern int drm_lock_take(struct drm_lock_data *lock_data, unsigned int context);
1254 extern int drm_lock_free(struct drm_lock_data *lock_data, unsigned int context);
1255 extern void drm_idlelock_take(struct drm_lock_data *lock_data);
1256 extern void drm_idlelock_release(struct drm_lock_data *lock_data);
1259 * These are exported to drivers so that they can implement fencing using
1260 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
1263 extern int drm_i_have_hw_lock(struct drm_device *dev, struct drm_file *file_priv);
1265 /* Buffer management support (drm_bufs.h) */
1266 extern int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc * request);
1267 extern int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc * request);
1268 extern int drm_addmap(struct drm_device *dev, resource_size_t offset,
1269 unsigned int size, enum drm_map_type type,
1270 enum drm_map_flags flags, struct drm_local_map **map_ptr);
1271 extern int drm_addmap_ioctl(struct drm_device *dev, void *data,
1272 struct drm_file *file_priv);
1273 extern int drm_rmmap(struct drm_device *dev, struct drm_local_map *map);
1274 extern int drm_rmmap_locked(struct drm_device *dev, struct drm_local_map *map);
1275 extern int drm_rmmap_ioctl(struct drm_device *dev, void *data,
1276 struct drm_file *file_priv);
1277 extern int drm_addbufs(struct drm_device *dev, void *data,
1278 struct drm_file *file_priv);
1279 extern int drm_infobufs(struct drm_device *dev, void *data,
1280 struct drm_file *file_priv);
1281 extern int drm_markbufs(struct drm_device *dev, void *data,
1282 struct drm_file *file_priv);
1283 extern int drm_freebufs(struct drm_device *dev, void *data,
1284 struct drm_file *file_priv);
1285 extern int drm_mapbufs(struct drm_device *dev, void *data,
1286 struct drm_file *file_priv);
1287 extern int drm_order(unsigned long size);
1289 /* DMA support (drm_dma.h) */
1290 extern int drm_dma_setup(struct drm_device *dev);
1291 extern void drm_dma_takedown(struct drm_device *dev);
1292 extern void drm_free_buffer(struct drm_device *dev, struct drm_buf * buf);
1293 extern void drm_core_reclaim_buffers(struct drm_device *dev,
1294 struct drm_file *filp);
1296 /* IRQ support (drm_irq.h) */
1297 extern int drm_control(struct drm_device *dev, void *data,
1298 struct drm_file *file_priv);
1299 extern irqreturn_t drm_irq_handler(DRM_IRQ_ARGS);
1300 extern int drm_irq_install(struct drm_device *dev);
1301 extern int drm_irq_uninstall(struct drm_device *dev);
1302 extern void drm_driver_irq_preinstall(struct drm_device *dev);
1303 extern void drm_driver_irq_postinstall(struct drm_device *dev);
1304 extern void drm_driver_irq_uninstall(struct drm_device *dev);
1306 extern int drm_vblank_init(struct drm_device *dev, int num_crtcs);
1307 extern int drm_wait_vblank(struct drm_device *dev, void *data,
1308 struct drm_file *filp);
1309 extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq);
1310 extern u32 drm_vblank_count(struct drm_device *dev, int crtc);
1311 extern void drm_handle_vblank(struct drm_device *dev, int crtc);
1312 extern int drm_vblank_get(struct drm_device *dev, int crtc);
1313 extern void drm_vblank_put(struct drm_device *dev, int crtc);
1314 extern void drm_vblank_off(struct drm_device *dev, int crtc);
1315 extern void drm_vblank_cleanup(struct drm_device *dev);
1316 /* Modesetting support */
1317 extern void drm_vblank_pre_modeset(struct drm_device *dev, int crtc);
1318 extern void drm_vblank_post_modeset(struct drm_device *dev, int crtc);
1319 extern int drm_modeset_ctl(struct drm_device *dev, void *data,
1320 struct drm_file *file_priv);
1322 /* AGP/GART support (drm_agpsupport.h) */
1323 extern struct drm_agp_head *drm_agp_init(struct drm_device *dev);
1324 extern int drm_agp_acquire(struct drm_device *dev);
1325 extern int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
1326 struct drm_file *file_priv);
1327 extern int drm_agp_release(struct drm_device *dev);
1328 extern int drm_agp_release_ioctl(struct drm_device *dev, void *data,
1329 struct drm_file *file_priv);
1330 extern int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode);
1331 extern int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
1332 struct drm_file *file_priv);
1333 extern int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info);
1334 extern int drm_agp_info_ioctl(struct drm_device *dev, void *data,
1335 struct drm_file *file_priv);
1336 extern int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request);
1337 extern int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
1338 struct drm_file *file_priv);
1339 extern int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request);
1340 extern int drm_agp_free_ioctl(struct drm_device *dev, void *data,
1341 struct drm_file *file_priv);
1342 extern int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request);
1343 extern int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
1344 struct drm_file *file_priv);
1345 extern int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
1346 extern int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
1347 struct drm_file *file_priv);
1348 extern DRM_AGP_MEM *drm_agp_allocate_memory(struct agp_bridge_data *bridge, size_t pages, u32 type);
1349 extern int drm_agp_free_memory(DRM_AGP_MEM * handle);
1350 extern int drm_agp_bind_memory(DRM_AGP_MEM * handle, off_t start);
1351 extern int drm_agp_unbind_memory(DRM_AGP_MEM * handle);
1352 extern void drm_agp_chipset_flush(struct drm_device *dev);
1354 /* Stub support (drm_stub.h) */
1355 extern int drm_setmaster_ioctl(struct drm_device *dev, void *data,
1356 struct drm_file *file_priv);
1357 extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
1358 struct drm_file *file_priv);
1359 struct drm_master *drm_master_create(struct drm_minor *minor);
1360 extern struct drm_master *drm_master_get(struct drm_master *master);
1361 extern void drm_master_put(struct drm_master **master);
1362 extern int drm_get_pci_dev(struct pci_dev *pdev,
1363 const struct pci_device_id *ent,
1364 struct drm_driver *driver);
1365 extern int drm_get_platform_dev(struct platform_device *pdev,
1366 struct drm_driver *driver);
1367 extern void drm_put_dev(struct drm_device *dev);
1368 extern int drm_put_minor(struct drm_minor **minor);
1369 extern unsigned int drm_debug;
1371 extern struct class *drm_class;
1372 extern struct proc_dir_entry *drm_proc_root;
1373 extern struct dentry *drm_debugfs_root;
1375 extern struct idr drm_minors_idr;
1377 extern struct drm_local_map *drm_getsarea(struct drm_device *dev);
1379 /* Proc support (drm_proc.h) */
1380 extern int drm_proc_init(struct drm_minor *minor, int minor_id,
1381 struct proc_dir_entry *root);
1382 extern int drm_proc_cleanup(struct drm_minor *minor, struct proc_dir_entry *root);
1384 /* Debugfs support */
1385 #if defined(CONFIG_DEBUG_FS)
1386 extern int drm_debugfs_init(struct drm_minor *minor, int minor_id,
1387 struct dentry *root);
1388 extern int drm_debugfs_create_files(struct drm_info_list *files, int count,
1389 struct dentry *root, struct drm_minor *minor);
1390 extern int drm_debugfs_remove_files(struct drm_info_list *files, int count,
1391 struct drm_minor *minor);
1392 extern int drm_debugfs_cleanup(struct drm_minor *minor);
1395 /* Info file support */
1396 extern int drm_name_info(struct seq_file *m, void *data);
1397 extern int drm_vm_info(struct seq_file *m, void *data);
1398 extern int drm_queues_info(struct seq_file *m, void *data);
1399 extern int drm_bufs_info(struct seq_file *m, void *data);
1400 extern int drm_vblank_info(struct seq_file *m, void *data);
1401 extern int drm_clients_info(struct seq_file *m, void* data);
1402 extern int drm_gem_name_info(struct seq_file *m, void *data);
1403 extern int drm_gem_object_info(struct seq_file *m, void* data);
1406 extern int drm_vma_info(struct seq_file *m, void *data);
1409 /* Scatter Gather Support (drm_scatter.h) */
1410 extern void drm_sg_cleanup(struct drm_sg_mem * entry);
1411 extern int drm_sg_alloc_ioctl(struct drm_device *dev, void *data,
1412 struct drm_file *file_priv);
1413 extern int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request);
1414 extern int drm_sg_free(struct drm_device *dev, void *data,
1415 struct drm_file *file_priv);
1417 /* ATI PCIGART support (ati_pcigart.h) */
1418 extern int drm_ati_pcigart_init(struct drm_device *dev,
1419 struct drm_ati_pcigart_info * gart_info);
1420 extern int drm_ati_pcigart_cleanup(struct drm_device *dev,
1421 struct drm_ati_pcigart_info * gart_info);
1423 extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
1425 extern void __drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
1426 extern void drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
1428 /* sysfs support (drm_sysfs.c) */
1429 struct drm_sysfs_class;
1430 extern struct class *drm_sysfs_create(struct module *owner, char *name);
1431 extern void drm_sysfs_destroy(void);
1432 extern int drm_sysfs_device_add(struct drm_minor *minor);
1433 extern void drm_sysfs_hotplug_event(struct drm_device *dev);
1434 extern void drm_sysfs_device_remove(struct drm_minor *minor);
1435 extern char *drm_get_connector_status_name(enum drm_connector_status status);
1436 extern int drm_sysfs_connector_add(struct drm_connector *connector);
1437 extern void drm_sysfs_connector_remove(struct drm_connector *connector);
1439 /* Graphics Execution Manager library functions (drm_gem.c) */
1440 int drm_gem_init(struct drm_device *dev);
1441 void drm_gem_destroy(struct drm_device *dev);
1442 void drm_gem_object_release(struct drm_gem_object *obj);
1443 void drm_gem_object_free(struct kref *kref);
1444 void drm_gem_object_free_unlocked(struct kref *kref);
1445 struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev,
1447 int drm_gem_object_init(struct drm_device *dev,
1448 struct drm_gem_object *obj, size_t size);
1449 void drm_gem_object_handle_free(struct kref *kref);
1450 void drm_gem_vm_open(struct vm_area_struct *vma);
1451 void drm_gem_vm_close(struct vm_area_struct *vma);
1452 int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
1455 drm_gem_object_reference(struct drm_gem_object *obj)
1457 kref_get(&obj->refcount);
1461 drm_gem_object_unreference(struct drm_gem_object *obj)
1464 kref_put(&obj->refcount, drm_gem_object_free);
1468 drm_gem_object_unreference_unlocked(struct drm_gem_object *obj)
1471 kref_put(&obj->refcount, drm_gem_object_free_unlocked);
1474 int drm_gem_handle_create(struct drm_file *file_priv,
1475 struct drm_gem_object *obj,
1479 drm_gem_object_handle_reference(struct drm_gem_object *obj)
1481 drm_gem_object_reference(obj);
1482 kref_get(&obj->handlecount);
1486 drm_gem_object_handle_unreference(struct drm_gem_object *obj)
1492 * Must bump handle count first as this may be the last
1493 * ref, in which case the object would disappear before we
1494 * checked for a name
1496 kref_put(&obj->handlecount, drm_gem_object_handle_free);
1497 drm_gem_object_unreference(obj);
1501 drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj)
1507 * Must bump handle count first as this may be the last
1508 * ref, in which case the object would disappear before we
1509 * checked for a name
1511 kref_put(&obj->handlecount, drm_gem_object_handle_free);
1512 drm_gem_object_unreference_unlocked(obj);
1515 struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev,
1516 struct drm_file *filp,
1518 int drm_gem_close_ioctl(struct drm_device *dev, void *data,
1519 struct drm_file *file_priv);
1520 int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
1521 struct drm_file *file_priv);
1522 int drm_gem_open_ioctl(struct drm_device *dev, void *data,
1523 struct drm_file *file_priv);
1524 void drm_gem_open(struct drm_device *dev, struct drm_file *file_private);
1525 void drm_gem_release(struct drm_device *dev, struct drm_file *file_private);
1527 extern void drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev);
1528 extern void drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev);
1529 extern void drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev);
1531 static __inline__ struct drm_local_map *drm_core_findmap(struct drm_device *dev,
1534 struct drm_map_list *_entry;
1535 list_for_each_entry(_entry, &dev->maplist, head)
1536 if (_entry->user_token == token)
1541 static __inline__ int drm_device_is_agp(struct drm_device *dev)
1543 if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE))
1546 if (dev->driver->device_is_agp != NULL) {
1547 int err = (*dev->driver->device_is_agp) (dev);
1554 return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP);
1557 static __inline__ int drm_device_is_pcie(struct drm_device *dev)
1559 if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE))
1562 return pci_find_capability(dev->pdev, PCI_CAP_ID_EXP);
1565 static __inline__ void drm_core_dropmap(struct drm_local_map *map)
1569 #include "drm_mem_util.h"
1571 static inline void *drm_get_device(struct drm_device *dev)
1573 if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE))
1574 return dev->platformdev;
1579 extern int drm_platform_init(struct drm_driver *driver);
1580 extern int drm_pci_init(struct drm_driver *driver);
1581 extern int drm_fill_in_dev(struct drm_device *dev,
1582 const struct pci_device_id *ent,
1583 struct drm_driver *driver);
1584 int drm_get_minor(struct drm_device *dev, struct drm_minor **minor, int type);
1587 #endif /* __KERNEL__ */