3 * Private header for Direct Rendering Manager
5 * \author Rickard E. (Rik) Faith <faith@valinux.com>
6 * \author Gareth Hughes <gareth@valinux.com>
10 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
11 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
12 * All rights reserved.
14 * Permission is hereby granted, free of charge, to any person obtaining a
15 * copy of this software and associated documentation files (the "Software"),
16 * to deal in the Software without restriction, including without limitation
17 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
18 * and/or sell copies of the Software, and to permit persons to whom the
19 * Software is furnished to do so, subject to the following conditions:
21 * The above copyright notice and this permission notice (including the next
22 * paragraph) shall be included in all copies or substantial portions of the
25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
26 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
27 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
28 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
29 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
30 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
31 * OTHER DEALINGS IN THE SOFTWARE.
37 /* If you want the memory alloc debug functionality, change define below */
38 /* #define DEBUG_MEMORY */
42 /* add include of current.h so that "current" is defined
43 * before static inline funcs in wait.h. Doing this so we
44 * can build the DRM (part of PI DRI). 4/21/2000 S + B */
45 #include <asm/current.h>
46 #endif /* __alpha__ */
47 #include <linux/module.h>
48 #include <linux/kernel.h>
49 #include <linux/miscdevice.h>
51 #include <linux/proc_fs.h>
52 #include <linux/init.h>
53 #include <linux/file.h>
54 #include <linux/pci.h>
55 #include <linux/jiffies.h>
56 #include <linux/smp_lock.h> /* For (un)lock_kernel */
57 #include <linux/dma-mapping.h>
59 #include <linux/cdev.h>
60 #include <linux/mutex.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"
90 #define DRM_UT_CORE 0x01
91 #define DRM_UT_DRIVER 0x02
92 #define DRM_UT_KMS 0x04
93 #define DRM_UT_MODE 0x08
95 extern void drm_ut_debug_printk(unsigned int request_level,
97 const char *function_name,
98 const char *format, ...);
99 /***********************************************************************/
100 /** \name DRM template customization defaults */
103 /* driver capabilities and requirements mask */
104 #define DRIVER_USE_AGP 0x1
105 #define DRIVER_REQUIRE_AGP 0x2
106 #define DRIVER_USE_MTRR 0x4
107 #define DRIVER_PCI_DMA 0x8
108 #define DRIVER_SG 0x10
109 #define DRIVER_HAVE_DMA 0x20
110 #define DRIVER_HAVE_IRQ 0x40
111 #define DRIVER_IRQ_SHARED 0x80
112 #define DRIVER_IRQ_VBL 0x100
113 #define DRIVER_DMA_QUEUE 0x200
114 #define DRIVER_FB_DMA 0x400
115 #define DRIVER_IRQ_VBL2 0x800
116 #define DRIVER_GEM 0x1000
117 #define DRIVER_MODESET 0x2000
119 /***********************************************************************/
120 /** \name Begin the DRM... */
123 #define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then
124 also include looping detection. */
126 #define DRM_MAGIC_HASH_ORDER 4 /**< Size of key hash table. Must be power of 2. */
127 #define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */
128 #define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */
129 #define DRM_LOOPING_LIMIT 5000000
130 #define DRM_TIME_SLICE (HZ/20) /**< Time slice for GLXContexts */
131 #define DRM_LOCK_SLICE 1 /**< Time slice for lock, in jiffies */
133 #define DRM_FLAG_DEBUG 0x01
135 #define DRM_MEM_DMA 0
136 #define DRM_MEM_SAREA 1
137 #define DRM_MEM_DRIVER 2
138 #define DRM_MEM_MAGIC 3
139 #define DRM_MEM_IOCTLS 4
140 #define DRM_MEM_MAPS 5
141 #define DRM_MEM_VMAS 6
142 #define DRM_MEM_BUFS 7
143 #define DRM_MEM_SEGS 8
144 #define DRM_MEM_PAGES 9
145 #define DRM_MEM_FILES 10
146 #define DRM_MEM_QUEUES 11
147 #define DRM_MEM_CMDS 12
148 #define DRM_MEM_MAPPINGS 13
149 #define DRM_MEM_BUFLISTS 14
150 #define DRM_MEM_AGPLISTS 15
151 #define DRM_MEM_TOTALAGP 16
152 #define DRM_MEM_BOUNDAGP 17
153 #define DRM_MEM_CTXBITMAP 18
154 #define DRM_MEM_STUB 19
155 #define DRM_MEM_SGLISTS 20
156 #define DRM_MEM_CTXLIST 21
157 #define DRM_MEM_MM 22
158 #define DRM_MEM_HASHTAB 23
160 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
161 #define DRM_MAP_HASH_OFFSET 0x10000000
165 /***********************************************************************/
166 /** \name Macros to make printk easier */
172 * \param fmt printf() like format string.
173 * \param arg arguments
175 #define DRM_ERROR(fmt, arg...) \
176 printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* " fmt , __func__ , ##arg)
179 * Memory error output.
181 * \param area memory area where the error occurred.
182 * \param fmt printf() like format string.
183 * \param arg arguments
185 #define DRM_MEM_ERROR(area, fmt, arg...) \
186 printk(KERN_ERR "[" DRM_NAME ":%s:%s] *ERROR* " fmt , __func__, \
187 drm_mem_stats[area].name , ##arg)
189 #define DRM_INFO(fmt, arg...) printk(KERN_INFO "[" DRM_NAME "] " fmt , ##arg)
194 * \param fmt printf() like format string.
195 * \param arg arguments
198 #define DRM_DEBUG(fmt, args...) \
200 drm_ut_debug_printk(DRM_UT_CORE, DRM_NAME, \
201 __func__, fmt, ##args); \
204 #define DRM_DEBUG_DRIVER(prefix, fmt, args...) \
206 drm_ut_debug_printk(DRM_UT_DRIVER, prefix, \
207 __func__, fmt, ##args); \
209 #define DRM_DEBUG_KMS(prefix, fmt, args...) \
211 drm_ut_debug_printk(DRM_UT_KMS, prefix, \
212 __func__, fmt, ##args); \
214 #define DRM_DEBUG_MODE(prefix, fmt, args...) \
216 drm_ut_debug_printk(DRM_UT_MODE, prefix, \
217 __func__, fmt, ##args); \
219 #define DRM_LOG(fmt, args...) \
221 drm_ut_debug_printk(DRM_UT_CORE, NULL, \
222 NULL, fmt, ##args); \
224 #define DRM_LOG_KMS(fmt, args...) \
226 drm_ut_debug_printk(DRM_UT_KMS, NULL, \
227 NULL, fmt, ##args); \
229 #define DRM_LOG_MODE(fmt, args...) \
231 drm_ut_debug_printk(DRM_UT_MODE, NULL, \
232 NULL, fmt, ##args); \
234 #define DRM_LOG_DRIVER(fmt, args...) \
236 drm_ut_debug_printk(DRM_UT_DRIVER, NULL, \
237 NULL, fmt, ##args); \
240 #define DRM_DEBUG_DRIVER(prefix, fmt, args...) do { } while (0)
241 #define DRM_DEBUG_KMS(prefix, fmt, args...) do { } while (0)
242 #define DRM_DEBUG_MODE(prefix, fmt, args...) do { } while (0)
243 #define DRM_DEBUG(fmt, arg...) do { } while (0)
244 #define DRM_LOG(fmt, arg...) do { } while (0)
245 #define DRM_LOG_KMS(fmt, args...) do { } while (0)
246 #define DRM_LOG_MODE(fmt, arg...) do { } while (0)
247 #define DRM_LOG_DRIVER(fmt, arg...) do { } while (0)
251 #define DRM_PROC_LIMIT (PAGE_SIZE-80)
253 #define DRM_PROC_PRINT(fmt, arg...) \
254 len += sprintf(&buf[len], fmt , ##arg); \
255 if (len > DRM_PROC_LIMIT) { *eof = 1; return len - offset; }
257 #define DRM_PROC_PRINT_RET(ret, fmt, arg...) \
258 len += sprintf(&buf[len], fmt , ##arg); \
259 if (len > DRM_PROC_LIMIT) { ret; *eof = 1; return len - offset; }
263 /***********************************************************************/
264 /** \name Internal types and structures */
267 #define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x)
269 #define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
270 #define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
271 #define DRM_WAITCOUNT(dev,idx) DRM_BUFCOUNT(&dev->queuelist[idx]->waitlist)
273 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
275 * Get the private SAREA mapping.
277 * \param _dev DRM device.
278 * \param _ctx context number.
279 * \param _map output mapping.
281 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
282 (_map) = (_dev)->context_sareas[_ctx]; \
286 * Test that the hardware lock is held by the caller, returning otherwise.
288 * \param dev DRM device.
289 * \param filp file pointer of the caller.
291 #define LOCK_TEST_WITH_RETURN( dev, _file_priv ) \
293 if (!_DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock) || \
294 _file_priv->master->lock.file_priv != _file_priv) { \
295 DRM_ERROR( "%s called without lock held, held %d owner %p %p\n",\
296 __func__, _DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock),\
297 _file_priv->master->lock.file_priv, _file_priv); \
303 * Copy and IOCTL return string to user space
305 #define DRM_COPY( name, value ) \
306 len = strlen( value ); \
307 if ( len > name##_len ) len = name##_len; \
308 name##_len = strlen( value ); \
309 if ( len && name ) { \
310 if ( copy_to_user( name, value, len ) ) \
315 * Ioctl function type.
317 * \param inode device inode.
318 * \param file_priv DRM file private pointer.
319 * \param cmd command.
320 * \param arg argument.
322 typedef int drm_ioctl_t(struct drm_device *dev, void *data,
323 struct drm_file *file_priv);
325 typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
329 #define DRM_MASTER 0x2
330 #define DRM_ROOT_ONLY 0x4
331 #define DRM_CONTROL_ALLOW 0x8
333 struct drm_ioctl_desc {
340 * Creates a driver or general drm_ioctl_desc array entry for the given
341 * ioctl, for use by drm_ioctl().
343 #define DRM_IOCTL_DEF(ioctl, _func, _flags) \
344 [DRM_IOCTL_NR(ioctl)] = {.cmd = ioctl, .func = _func, .flags = _flags}
346 struct drm_magic_entry {
347 struct list_head head;
348 struct drm_hash_item hash_item;
349 struct drm_file *priv;
352 struct drm_vma_entry {
353 struct list_head head;
354 struct vm_area_struct *vma;
362 int idx; /**< Index into master buflist */
363 int total; /**< Buffer size */
364 int order; /**< log-base-2(total) */
365 int used; /**< Amount of buffer in use (for DMA) */
366 unsigned long offset; /**< Byte offset (used internally) */
367 void *address; /**< Address of buffer */
368 unsigned long bus_address; /**< Bus address of buffer */
369 struct drm_buf *next; /**< Kernel-only: used for free list */
370 __volatile__ int waiting; /**< On kernel DMA queue */
371 __volatile__ int pending; /**< On hardware DMA queue */
372 wait_queue_head_t dma_wait; /**< Processes waiting */
373 struct drm_file *file_priv; /**< Private of holding file descr */
374 int context; /**< Kernel queue for this buffer */
375 int while_locked; /**< Dispatch this buffer while locked */
383 } list; /**< Which list we're on */
385 int dev_priv_size; /**< Size of buffer private storage */
386 void *dev_private; /**< Per-buffer private storage */
389 /** bufs is one longer than it has to be */
390 struct drm_waitlist {
391 int count; /**< Number of possible buffers */
392 struct drm_buf **bufs; /**< List of pointers to buffers */
393 struct drm_buf **rp; /**< Read pointer */
394 struct drm_buf **wp; /**< Write pointer */
395 struct drm_buf **end; /**< End pointer */
396 spinlock_t read_lock;
397 spinlock_t write_lock;
400 struct drm_freelist {
401 int initialized; /**< Freelist in use */
402 atomic_t count; /**< Number of free buffers */
403 struct drm_buf *next; /**< End pointer */
405 wait_queue_head_t waiting; /**< Processes waiting on free bufs */
406 int low_mark; /**< Low water mark */
407 int high_mark; /**< High water mark */
408 atomic_t wfh; /**< If waiting for high mark */
412 typedef struct drm_dma_handle {
419 * Buffer entry. There is one of this for each buffer size order.
421 struct drm_buf_entry {
422 int buf_size; /**< size */
423 int buf_count; /**< number of buffers */
424 struct drm_buf *buflist; /**< buffer list */
427 struct drm_dma_handle **seglist;
429 struct drm_freelist freelist;
432 /** File private data */
438 unsigned long ioctl_count;
439 struct list_head lhead;
440 struct drm_minor *minor;
441 unsigned long lock_count;
443 /** Mapping of mm object handles to object pointers. */
444 struct idr object_idr;
445 /** Lock for synchronization of access to object_idr. */
446 spinlock_t table_lock;
451 int is_master; /* this file private is a master for a minor */
452 struct drm_master *master; /* master this node is currently associated with
453 N.B. not always minor->master */
454 struct list_head fbs;
459 atomic_t use_count; /**< Outstanding uses (+1) */
460 atomic_t finalization; /**< Finalization in progress */
461 atomic_t block_count; /**< Count of processes waiting */
462 atomic_t block_read; /**< Queue blocked for reads */
463 wait_queue_head_t read_queue; /**< Processes waiting on block_read */
464 atomic_t block_write; /**< Queue blocked for writes */
465 wait_queue_head_t write_queue; /**< Processes waiting on block_write */
466 atomic_t total_queued; /**< Total queued statistic */
467 atomic_t total_flushed; /**< Total flushes statistic */
468 atomic_t total_locks; /**< Total locks statistics */
469 enum drm_ctx_flags flags; /**< Context preserving and 2D-only */
470 struct drm_waitlist waitlist; /**< Pending buffers */
471 wait_queue_head_t flush_queue; /**< Processes waiting until flush */
477 struct drm_lock_data {
478 struct drm_hw_lock *hw_lock; /**< Hardware lock */
479 /** Private of lock holder's file (NULL=kernel) */
480 struct drm_file *file_priv;
481 wait_queue_head_t lock_queue; /**< Queue of blocked processes */
482 unsigned long lock_time; /**< Time of last lock in jiffies */
484 uint32_t kernel_waiters;
485 uint32_t user_waiters;
492 struct drm_device_dma {
494 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */
495 int buf_count; /**< total number of buffers */
496 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */
498 int page_count; /**< number of pages */
499 unsigned long *pagelist; /**< page list */
500 unsigned long byte_count;
502 _DRM_DMA_USE_AGP = 0x01,
503 _DRM_DMA_USE_SG = 0x02,
504 _DRM_DMA_USE_FB = 0x04,
505 _DRM_DMA_USE_PCI_RO = 0x08
511 * AGP memory entry. Stored as a doubly linked list.
514 unsigned long handle; /**< handle */
516 unsigned long bound; /**< address */
518 struct list_head head;
524 * \sa drm_agp_init() and drm_device::agp.
526 struct drm_agp_head {
527 DRM_AGP_KERN agp_info; /**< AGP device information */
528 struct list_head memory;
529 unsigned long mode; /**< AGP mode */
530 struct agp_bridge_data *bridge;
531 int enabled; /**< whether the AGP bus as been enabled */
532 int acquired; /**< whether the AGP device has been acquired */
535 int cant_use_aperture;
536 unsigned long page_mask;
540 * Scatter-gather memory.
543 unsigned long handle;
546 struct page **pagelist;
552 struct drm_hw_lock *lock;
557 * Generic memory manager structs
561 struct list_head fl_entry;
562 struct list_head ml_entry;
571 struct list_head fl_entry;
572 struct list_head ml_entry;
577 * Kernel side of a mapping
579 struct drm_local_map {
580 resource_size_t offset; /**< Requested physical address (0 for SAREA)*/
581 unsigned long size; /**< Requested physical size (bytes) */
582 enum drm_map_type type; /**< Type of memory to map */
583 enum drm_map_flags flags; /**< Flags */
584 void *handle; /**< User-space: "Handle" to pass to mmap() */
585 /**< Kernel-space: kernel-virtual address */
586 int mtrr; /**< MTRR slot used */
589 typedef struct drm_local_map drm_local_map_t;
594 struct drm_map_list {
595 struct list_head head; /**< list head */
596 struct drm_hash_item hash;
597 struct drm_local_map *map; /**< mapping */
599 struct drm_master *master;
600 struct drm_mm_node *file_offset_node; /**< fake offset */
604 * Context handle list
606 struct drm_ctx_list {
607 struct list_head head; /**< list head */
608 drm_context_t handle; /**< context handle */
609 struct drm_file *tag; /**< associated fd private data */
612 /* location of GART table */
613 #define DRM_ATI_GART_MAIN 1
614 #define DRM_ATI_GART_FB 2
616 #define DRM_ATI_GART_PCI 1
617 #define DRM_ATI_GART_PCIE 2
618 #define DRM_ATI_GART_IGP 3
620 struct drm_ati_pcigart_info {
621 int gart_table_location;
625 dma_addr_t table_mask;
626 struct drm_dma_handle *table_handle;
627 struct drm_local_map mapping;
632 * GEM specific mm private for tracking GEM objects
635 struct drm_mm offset_manager; /**< Offset mgmt for buffer objects */
636 struct drm_open_hash offset_hash; /**< User token hash table for maps */
640 * This structure defines the drm_mm memory object, which will be used by the
641 * DRM for its buffer objects.
643 struct drm_gem_object {
644 /** Reference count of this object */
645 struct kref refcount;
647 /** Handle count of this object. Each handle also holds a reference */
648 struct kref handlecount;
650 /** Related drm device */
651 struct drm_device *dev;
653 /** File representing the shmem storage */
656 /* Mapping info for this object */
657 struct drm_map_list map_list;
660 * Size of the object, in bytes. Immutable over the object's
666 * Global name for this object, starts at 1. 0 means unnamed.
667 * Access is covered by the object_name_lock in the related drm_device
672 * Memory domains. These monitor which caches contain read/write data
673 * related to the object. When transitioning from one set of domains
674 * to another, the driver is called to ensure that caches are suitably
675 * flushed and invalidated
677 uint32_t read_domains;
678 uint32_t write_domain;
681 * While validating an exec operation, the
682 * new read/write domain values are computed here.
683 * They will be transferred to the above values
684 * at the point that any cache flushing occurs
686 uint32_t pending_read_domains;
687 uint32_t pending_write_domain;
689 void *driver_private;
692 #include "drm_crtc.h"
694 /* per-master structure */
697 struct kref refcount; /* refcount for this master */
699 struct list_head head; /**< each minor contains a list of masters */
700 struct drm_minor *minor; /**< link back to minor we are a master for */
702 char *unique; /**< Unique identifier: e.g., busid */
703 int unique_len; /**< Length of unique field */
704 int unique_size; /**< amount allocated */
706 int blocked; /**< Blocked due to VC switch? */
708 /** \name Authentication */
710 struct drm_open_hash magiclist;
711 struct list_head magicfree;
714 struct drm_lock_data lock; /**< Information on hardware lock */
716 void *driver_priv; /**< Private structure for driver to use */
720 * DRM driver structure. This structure represent the common code for
721 * a family of cards. There will one drm_device for each card present
725 int (*load) (struct drm_device *, unsigned long flags);
726 int (*firstopen) (struct drm_device *);
727 int (*open) (struct drm_device *, struct drm_file *);
728 void (*preclose) (struct drm_device *, struct drm_file *file_priv);
729 void (*postclose) (struct drm_device *, struct drm_file *);
730 void (*lastclose) (struct drm_device *);
731 int (*unload) (struct drm_device *);
732 int (*suspend) (struct drm_device *, pm_message_t state);
733 int (*resume) (struct drm_device *);
734 int (*dma_ioctl) (struct drm_device *dev, void *data, struct drm_file *file_priv);
735 void (*dma_ready) (struct drm_device *);
736 int (*dma_quiescent) (struct drm_device *);
737 int (*context_ctor) (struct drm_device *dev, int context);
738 int (*context_dtor) (struct drm_device *dev, int context);
739 int (*kernel_context_switch) (struct drm_device *dev, int old,
741 void (*kernel_context_switch_unlock) (struct drm_device *dev);
744 * get_vblank_counter - get raw hardware vblank counter
746 * @crtc: counter to fetch
748 * Driver callback for fetching a raw hardware vblank counter
749 * for @crtc. If a device doesn't have a hardware counter, the
750 * driver can simply return the value of drm_vblank_count and
751 * make the enable_vblank() and disable_vblank() hooks into no-ops,
752 * leaving interrupts enabled at all times.
754 * Wraparound handling and loss of events due to modesetting is dealt
755 * with in the DRM core code.
758 * Raw vblank counter value.
760 u32 (*get_vblank_counter) (struct drm_device *dev, int crtc);
763 * enable_vblank - enable vblank interrupt events
765 * @crtc: which irq to enable
767 * Enable vblank interrupts for @crtc. If the device doesn't have
768 * a hardware vblank counter, this routine should be a no-op, since
769 * interrupts will have to stay on to keep the count accurate.
772 * Zero on success, appropriate errno if the given @crtc's vblank
773 * interrupt cannot be enabled.
775 int (*enable_vblank) (struct drm_device *dev, int crtc);
778 * disable_vblank - disable vblank interrupt events
780 * @crtc: which irq to enable
782 * Disable vblank interrupts for @crtc. If the device doesn't have
783 * a hardware vblank counter, this routine should be a no-op, since
784 * interrupts will have to stay on to keep the count accurate.
786 void (*disable_vblank) (struct drm_device *dev, int crtc);
789 * Called by \c drm_device_is_agp. Typically used to determine if a
790 * card is really attached to AGP or not.
792 * \param dev DRM device handle
795 * One of three values is returned depending on whether or not the
796 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
797 * (return of 1), or may or may not be AGP (return of 2).
799 int (*device_is_agp) (struct drm_device *dev);
801 /* these have to be filled in */
803 irqreturn_t(*irq_handler) (DRM_IRQ_ARGS);
804 void (*irq_preinstall) (struct drm_device *dev);
805 int (*irq_postinstall) (struct drm_device *dev);
806 void (*irq_uninstall) (struct drm_device *dev);
807 void (*reclaim_buffers) (struct drm_device *dev,
808 struct drm_file * file_priv);
809 void (*reclaim_buffers_locked) (struct drm_device *dev,
810 struct drm_file *file_priv);
811 void (*reclaim_buffers_idlelocked) (struct drm_device *dev,
812 struct drm_file *file_priv);
813 resource_size_t (*get_map_ofs) (struct drm_local_map * map);
814 resource_size_t (*get_reg_ofs) (struct drm_device *dev);
815 void (*set_version) (struct drm_device *dev,
816 struct drm_set_version *sv);
818 /* Master routines */
819 int (*master_create)(struct drm_device *dev, struct drm_master *master);
820 void (*master_destroy)(struct drm_device *dev, struct drm_master *master);
822 int (*proc_init)(struct drm_minor *minor);
823 void (*proc_cleanup)(struct drm_minor *minor);
824 int (*debugfs_init)(struct drm_minor *minor);
825 void (*debugfs_cleanup)(struct drm_minor *minor);
828 * Driver-specific constructor for drm_gem_objects, to set up
829 * obj->driver_private.
831 * Returns 0 on success.
833 int (*gem_init_object) (struct drm_gem_object *obj);
834 void (*gem_free_object) (struct drm_gem_object *obj);
836 /* Driver private ops for this object */
837 struct vm_operations_struct *gem_vm_ops;
848 struct drm_ioctl_desc *ioctls;
850 struct file_operations fops;
851 struct pci_driver pci_driver;
852 /* List of devices hanging off this driver */
853 struct list_head device_list;
856 #define DRM_MINOR_UNASSIGNED 0
857 #define DRM_MINOR_LEGACY 1
858 #define DRM_MINOR_CONTROL 2
859 #define DRM_MINOR_RENDER 3
863 * debugfs node list. This structure represents a debugfs file to
864 * be created by the drm core
866 struct drm_debugfs_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 */
873 * debugfs node structure. This structure represents a debugfs file.
875 struct drm_debugfs_node {
876 struct list_head list;
877 struct drm_minor *minor;
878 struct drm_debugfs_list *debugfs_ent;
883 * Info file list entry. This structure represents a debugfs or proc file to
884 * be created by the drm core
886 struct drm_info_list {
887 const char *name; /** file name */
888 int (*show)(struct seq_file*, void*); /** show callback */
889 u32 driver_features; /**< Required driver features for this entry */
894 * debugfs node structure. This structure represents a debugfs file.
896 struct drm_info_node {
897 struct list_head list;
898 struct drm_minor *minor;
899 struct drm_info_list *info_ent;
904 * DRM minor structure. This structure represents a drm minor number.
907 int index; /**< Minor device number */
908 int type; /**< Control or render */
909 dev_t device; /**< Device number for mknod */
910 struct device kdev; /**< Linux device */
911 struct drm_device *dev;
913 struct proc_dir_entry *proc_root; /**< proc directory entry */
914 struct drm_info_node proc_nodes;
915 struct dentry *debugfs_root;
916 struct drm_info_node debugfs_nodes;
918 struct drm_master *master; /* currently active master for this node */
919 struct list_head master_list;
920 struct drm_mode_group mode_group;
924 * DRM device structure. This structure represent a complete card that
925 * may contain multiple heads.
928 struct list_head driver_item; /**< list of devices per driver */
929 char *devname; /**< For /proc/interrupts */
930 int if_version; /**< Highest interface version set */
934 spinlock_t count_lock; /**< For inuse, drm_device::open_count, drm_device::buf_use */
935 struct mutex struct_mutex; /**< For others */
938 /** \name Usage Counters */
940 int open_count; /**< Outstanding files open */
941 atomic_t ioctl_count; /**< Outstanding IOCTLs pending */
942 atomic_t vma_count; /**< Outstanding vma areas open */
943 int buf_use; /**< Buffers in use -- cannot alloc */
944 atomic_t buf_alloc; /**< Buffer allocation in progress */
947 /** \name Performance counters */
949 unsigned long counters;
950 enum drm_stat_type types[15];
954 struct list_head filelist;
956 /** \name Memory management */
958 struct list_head maplist; /**< Linked list of regions */
959 int map_count; /**< Number of mappable regions */
960 struct drm_open_hash map_hash; /**< User token hash table for maps */
962 /** \name Context handle management */
964 struct list_head ctxlist; /**< Linked list of context handles */
965 int ctx_count; /**< Number of context handles */
966 struct mutex ctxlist_mutex; /**< For ctxlist */
970 struct list_head vmalist; /**< List of vmas (for debugging) */
974 /** \name DMA queues (contexts) */
976 int queue_count; /**< Number of active DMA queues */
977 int queue_reserved; /**< Number of reserved DMA queues */
978 int queue_slots; /**< Actual length of queuelist */
979 struct drm_queue **queuelist; /**< Vector of pointers to DMA queues */
980 struct drm_device_dma *dma; /**< Optional pointer for DMA support */
983 /** \name Context support */
985 int irq_enabled; /**< True if irq handler is enabled */
986 __volatile__ long context_flag; /**< Context swapping flag */
987 __volatile__ long interrupt_flag; /**< Interruption handler flag */
988 __volatile__ long dma_flag; /**< DMA dispatch flag */
989 struct timer_list timer; /**< Timer for delaying ctx switch */
990 wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */
991 int last_checked; /**< Last context checked for DMA */
992 int last_context; /**< Last current context */
993 unsigned long last_switch; /**< jiffies at last context switch */
996 struct work_struct work;
997 /** \name VBLANK IRQ support */
1001 * At load time, disabling the vblank interrupt won't be allowed since
1002 * old clients may not call the modeset ioctl and therefore misbehave.
1003 * Once the modeset ioctl *has* been called though, we can safely
1004 * disable them when unused.
1006 int vblank_disable_allowed;
1008 wait_queue_head_t *vbl_queue; /**< VBLANK wait queue */
1009 atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */
1010 spinlock_t vbl_lock;
1011 atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */
1012 u32 *last_vblank; /* protected by dev->vbl_lock, used */
1013 /* for wraparound handling */
1014 int *vblank_enabled; /* so we don't call enable more than
1016 int *vblank_inmodeset; /* Display driver is setting mode */
1017 u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */
1018 struct timer_list vblank_disable_timer;
1020 u32 max_vblank_count; /**< size of vblank counter register */
1026 struct fasync_struct *buf_async;/**< Processes waiting for SIGIO */
1027 wait_queue_head_t buf_readers; /**< Processes waiting to read */
1028 wait_queue_head_t buf_writers; /**< Processes waiting to ctx switch */
1030 struct drm_agp_head *agp; /**< AGP data */
1032 struct pci_dev *pdev; /**< PCI device structure */
1033 int pci_vendor; /**< PCI vendor id */
1034 int pci_device; /**< PCI device id */
1036 struct pci_controller *hose;
1038 struct drm_sg_mem *sg; /**< Scatter gather memory */
1039 int num_crtcs; /**< Number of CRTCs on this device */
1040 void *dev_private; /**< device private data */
1042 struct address_space *dev_mapping;
1043 struct drm_sigdata sigdata; /**< For block_all_signals */
1046 struct drm_driver *driver;
1047 struct drm_local_map *agp_buffer_map;
1048 unsigned int agp_buffer_token;
1049 struct drm_minor *control; /**< Control node for card */
1050 struct drm_minor *primary; /**< render type primary screen head */
1052 /** \name Drawable information */
1054 spinlock_t drw_lock;
1058 struct drm_mode_config mode_config; /**< Current mode config */
1060 /** \name GEM information */
1062 spinlock_t object_name_lock;
1063 struct idr object_name_idr;
1064 atomic_t object_count;
1065 atomic_t object_memory;
1067 atomic_t pin_memory;
1069 atomic_t gtt_memory;
1071 uint32_t invalidate_domains; /* domains pending invalidation */
1072 uint32_t flush_domains; /* domains pending flush */
1077 static inline int drm_dev_to_irq(struct drm_device *dev)
1079 return dev->pdev->irq;
1082 static __inline__ int drm_core_check_feature(struct drm_device *dev,
1085 return ((dev->driver->driver_features & feature) ? 1 : 0);
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 int drm_ioctl(struct inode *inode, 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 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);
1288 extern resource_size_t drm_get_resource_start(struct drm_device *dev,
1289 unsigned int resource);
1290 extern resource_size_t drm_get_resource_len(struct drm_device *dev,
1291 unsigned int resource);
1293 /* DMA support (drm_dma.h) */
1294 extern int drm_dma_setup(struct drm_device *dev);
1295 extern void drm_dma_takedown(struct drm_device *dev);
1296 extern void drm_free_buffer(struct drm_device *dev, struct drm_buf * buf);
1297 extern void drm_core_reclaim_buffers(struct drm_device *dev,
1298 struct drm_file *filp);
1300 /* IRQ support (drm_irq.h) */
1301 extern int drm_control(struct drm_device *dev, void *data,
1302 struct drm_file *file_priv);
1303 extern irqreturn_t drm_irq_handler(DRM_IRQ_ARGS);
1304 extern int drm_irq_install(struct drm_device *dev);
1305 extern int drm_irq_uninstall(struct drm_device *dev);
1306 extern void drm_driver_irq_preinstall(struct drm_device *dev);
1307 extern void drm_driver_irq_postinstall(struct drm_device *dev);
1308 extern void drm_driver_irq_uninstall(struct drm_device *dev);
1310 extern int drm_vblank_init(struct drm_device *dev, int num_crtcs);
1311 extern int drm_wait_vblank(struct drm_device *dev, void *data,
1312 struct drm_file *filp);
1313 extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq);
1314 extern u32 drm_vblank_count(struct drm_device *dev, int crtc);
1315 extern void drm_handle_vblank(struct drm_device *dev, int crtc);
1316 extern int drm_vblank_get(struct drm_device *dev, int crtc);
1317 extern void drm_vblank_put(struct drm_device *dev, int crtc);
1318 extern void drm_vblank_cleanup(struct drm_device *dev);
1319 /* Modesetting support */
1320 extern void drm_vblank_pre_modeset(struct drm_device *dev, int crtc);
1321 extern void drm_vblank_post_modeset(struct drm_device *dev, int crtc);
1322 extern int drm_modeset_ctl(struct drm_device *dev, void *data,
1323 struct drm_file *file_priv);
1325 /* AGP/GART support (drm_agpsupport.h) */
1326 extern struct drm_agp_head *drm_agp_init(struct drm_device *dev);
1327 extern int drm_agp_acquire(struct drm_device *dev);
1328 extern int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
1329 struct drm_file *file_priv);
1330 extern int drm_agp_release(struct drm_device *dev);
1331 extern int drm_agp_release_ioctl(struct drm_device *dev, void *data,
1332 struct drm_file *file_priv);
1333 extern int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode);
1334 extern int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
1335 struct drm_file *file_priv);
1336 extern int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info);
1337 extern int drm_agp_info_ioctl(struct drm_device *dev, void *data,
1338 struct drm_file *file_priv);
1339 extern int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request);
1340 extern int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
1341 struct drm_file *file_priv);
1342 extern int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request);
1343 extern int drm_agp_free_ioctl(struct drm_device *dev, void *data,
1344 struct drm_file *file_priv);
1345 extern int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request);
1346 extern int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
1347 struct drm_file *file_priv);
1348 extern int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
1349 extern int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
1350 struct drm_file *file_priv);
1351 extern DRM_AGP_MEM *drm_agp_allocate_memory(struct agp_bridge_data *bridge, size_t pages, u32 type);
1352 extern int drm_agp_free_memory(DRM_AGP_MEM * handle);
1353 extern int drm_agp_bind_memory(DRM_AGP_MEM * handle, off_t start);
1354 extern int drm_agp_unbind_memory(DRM_AGP_MEM * handle);
1355 extern void drm_agp_chipset_flush(struct drm_device *dev);
1357 /* Stub support (drm_stub.h) */
1358 extern int drm_setmaster_ioctl(struct drm_device *dev, void *data,
1359 struct drm_file *file_priv);
1360 extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
1361 struct drm_file *file_priv);
1362 struct drm_master *drm_master_create(struct drm_minor *minor);
1363 extern struct drm_master *drm_master_get(struct drm_master *master);
1364 extern void drm_master_put(struct drm_master **master);
1365 extern int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
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,
1424 size_t align, dma_addr_t maxaddr);
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);
1440 * Basic memory manager support (drm_mm.c)
1442 extern struct drm_mm_node *drm_mm_get_block(struct drm_mm_node * parent,
1444 unsigned alignment);
1445 extern void drm_mm_put_block(struct drm_mm_node * cur);
1446 extern struct drm_mm_node *drm_mm_search_free(const struct drm_mm *mm, unsigned long size,
1447 unsigned alignment, int best_match);
1448 extern int drm_mm_init(struct drm_mm *mm, unsigned long start, unsigned long size);
1449 extern void drm_mm_takedown(struct drm_mm *mm);
1450 extern int drm_mm_clean(struct drm_mm *mm);
1451 extern unsigned long drm_mm_tail_space(struct drm_mm *mm);
1452 extern int drm_mm_remove_space_from_tail(struct drm_mm *mm, unsigned long size);
1453 extern int drm_mm_add_space_to_tail(struct drm_mm *mm, unsigned long size);
1455 /* Graphics Execution Manager library functions (drm_gem.c) */
1456 int drm_gem_init(struct drm_device *dev);
1457 void drm_gem_destroy(struct drm_device *dev);
1458 void drm_gem_object_free(struct kref *kref);
1459 struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev,
1461 void drm_gem_object_handle_free(struct kref *kref);
1462 void drm_gem_vm_open(struct vm_area_struct *vma);
1463 void drm_gem_vm_close(struct vm_area_struct *vma);
1464 int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
1467 drm_gem_object_reference(struct drm_gem_object *obj)
1469 kref_get(&obj->refcount);
1473 drm_gem_object_unreference(struct drm_gem_object *obj)
1478 kref_put(&obj->refcount, drm_gem_object_free);
1481 int drm_gem_handle_create(struct drm_file *file_priv,
1482 struct drm_gem_object *obj,
1486 drm_gem_object_handle_reference(struct drm_gem_object *obj)
1488 drm_gem_object_reference(obj);
1489 kref_get(&obj->handlecount);
1493 drm_gem_object_handle_unreference(struct drm_gem_object *obj)
1499 * Must bump handle count first as this may be the last
1500 * ref, in which case the object would disappear before we
1501 * checked for a name
1503 kref_put(&obj->handlecount, drm_gem_object_handle_free);
1504 drm_gem_object_unreference(obj);
1507 struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev,
1508 struct drm_file *filp,
1510 int drm_gem_close_ioctl(struct drm_device *dev, void *data,
1511 struct drm_file *file_priv);
1512 int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
1513 struct drm_file *file_priv);
1514 int drm_gem_open_ioctl(struct drm_device *dev, void *data,
1515 struct drm_file *file_priv);
1516 void drm_gem_open(struct drm_device *dev, struct drm_file *file_private);
1517 void drm_gem_release(struct drm_device *dev, struct drm_file *file_private);
1519 extern void drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev);
1520 extern void drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev);
1521 extern void drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev);
1523 static __inline__ struct drm_local_map *drm_core_findmap(struct drm_device *dev,
1526 struct drm_map_list *_entry;
1527 list_for_each_entry(_entry, &dev->maplist, head)
1528 if (_entry->user_token == token)
1533 static __inline__ int drm_device_is_agp(struct drm_device *dev)
1535 if (dev->driver->device_is_agp != NULL) {
1536 int err = (*dev->driver->device_is_agp) (dev);
1543 return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP);
1546 static __inline__ int drm_device_is_pcie(struct drm_device *dev)
1548 return pci_find_capability(dev->pdev, PCI_CAP_ID_EXP);
1551 static __inline__ void drm_core_dropmap(struct drm_local_map *map)
1555 #ifndef DEBUG_MEMORY
1556 /** Wrapper around kmalloc() */
1557 static __inline__ void *drm_alloc(size_t size, int area)
1559 return kmalloc(size, GFP_KERNEL);
1562 /** Wrapper around kfree() */
1563 static __inline__ void drm_free(void *pt, size_t size, int area)
1568 /** Wrapper around kcalloc() */
1569 static __inline__ void *drm_calloc(size_t nmemb, size_t size, int area)
1571 return kcalloc(nmemb, size, GFP_KERNEL);
1574 static __inline__ void *drm_calloc_large(size_t nmemb, size_t size)
1576 if (size * nmemb <= PAGE_SIZE)
1577 return kcalloc(nmemb, size, GFP_KERNEL);
1579 if (size != 0 && nmemb > ULONG_MAX / size)
1582 return __vmalloc(size * nmemb,
1583 GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO, PAGE_KERNEL);
1586 static __inline void drm_free_large(void *ptr)
1588 if (!is_vmalloc_addr(ptr))
1594 extern void *drm_alloc(size_t size, int area);
1595 extern void drm_free(void *pt, size_t size, int area);
1596 extern void *drm_calloc(size_t nmemb, size_t size, int area);
1601 #endif /* __KERNEL__ */