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/config.h>
48 #include <linux/module.h>
49 #include <linux/kernel.h>
50 #include <linux/miscdevice.h>
52 #include <linux/proc_fs.h>
53 #include <linux/init.h>
54 #include <linux/file.h>
55 #include <linux/pci.h>
56 #include <linux/jiffies.h>
57 #include <linux/smp_lock.h> /* For (un)lock_kernel */
59 #include <linux/cdev.h>
60 #if defined(__alpha__) || defined(__powerpc__)
61 #include <asm/pgtable.h> /* For pte_wrprotect */
65 #include <asm/uaccess.h>
69 #if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
70 #include <linux/types.h>
71 #include <linux/agp_backend.h>
73 #include <linux/workqueue.h>
74 #include <linux/poll.h>
75 #include <asm/pgalloc.h>
78 #define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE)))
79 #define __OS_HAS_MTRR (defined(CONFIG_MTRR))
81 #include "drm_os_linux.h"
83 /***********************************************************************/
84 /** \name DRM template customization defaults */
87 /* driver capabilities and requirements mask */
88 #define DRIVER_USE_AGP 0x1
89 #define DRIVER_REQUIRE_AGP 0x2
90 #define DRIVER_USE_MTRR 0x4
91 #define DRIVER_PCI_DMA 0x8
92 #define DRIVER_SG 0x10
93 #define DRIVER_HAVE_DMA 0x20
94 #define DRIVER_HAVE_IRQ 0x40
95 #define DRIVER_IRQ_SHARED 0x80
96 #define DRIVER_IRQ_VBL 0x100
97 #define DRIVER_DMA_QUEUE 0x200
98 #define DRIVER_FB_DMA 0x400
100 /***********************************************************************/
101 /** \name Begin the DRM... */
104 #define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then
105 also include looping detection. */
107 #define DRM_HASH_SIZE 16 /**< Size of key hash table. Must be power of 2. */
108 #define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */
109 #define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */
110 #define DRM_LOOPING_LIMIT 5000000
111 #define DRM_BSZ 1024 /**< Buffer size for /dev/drm? output */
112 #define DRM_TIME_SLICE (HZ/20) /**< Time slice for GLXContexts */
113 #define DRM_LOCK_SLICE 1 /**< Time slice for lock, in jiffies */
115 #define DRM_FLAG_DEBUG 0x01
117 #define DRM_MEM_DMA 0
118 #define DRM_MEM_SAREA 1
119 #define DRM_MEM_DRIVER 2
120 #define DRM_MEM_MAGIC 3
121 #define DRM_MEM_IOCTLS 4
122 #define DRM_MEM_MAPS 5
123 #define DRM_MEM_VMAS 6
124 #define DRM_MEM_BUFS 7
125 #define DRM_MEM_SEGS 8
126 #define DRM_MEM_PAGES 9
127 #define DRM_MEM_FILES 10
128 #define DRM_MEM_QUEUES 11
129 #define DRM_MEM_CMDS 12
130 #define DRM_MEM_MAPPINGS 13
131 #define DRM_MEM_BUFLISTS 14
132 #define DRM_MEM_AGPLISTS 15
133 #define DRM_MEM_TOTALAGP 16
134 #define DRM_MEM_BOUNDAGP 17
135 #define DRM_MEM_CTXBITMAP 18
136 #define DRM_MEM_STUB 19
137 #define DRM_MEM_SGLISTS 20
138 #define DRM_MEM_CTXLIST 21
140 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
144 /***********************************************************************/
145 /** \name Backward compatibility section */
148 #ifndef MODULE_LICENSE
149 #define MODULE_LICENSE(x)
152 #ifndef preempt_disable
153 #define preempt_disable()
154 #define preempt_enable()
157 #ifndef pte_offset_map
158 #define pte_offset_map pte_offset
159 #define pte_unmap(pte)
162 #define DRM_RPR_ARG(vma) vma,
164 #define VM_OFFSET(vma) ((vma)->vm_pgoff << PAGE_SHIFT)
168 /***********************************************************************/
169 /** \name Macros to make printk easier */
175 * \param fmt printf() like format string.
176 * \param arg arguments
178 #define DRM_ERROR(fmt, arg...) \
179 printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* " fmt , __FUNCTION__ , ##arg)
182 * Memory error output.
184 * \param area memory area where the error occurred.
185 * \param fmt printf() like format string.
186 * \param arg arguments
188 #define DRM_MEM_ERROR(area, fmt, arg...) \
189 printk(KERN_ERR "[" DRM_NAME ":%s:%s] *ERROR* " fmt , __FUNCTION__, \
190 drm_mem_stats[area].name , ##arg)
192 #define DRM_INFO(fmt, arg...) printk(KERN_INFO "[" DRM_NAME "] " fmt , ##arg)
197 * \param fmt printf() like format string.
198 * \param arg arguments
201 #define DRM_DEBUG(fmt, arg...) \
205 "[" DRM_NAME ":%s] " fmt , \
206 __FUNCTION__ , ##arg); \
209 #define DRM_DEBUG(fmt, arg...) do { } while (0)
212 #define DRM_PROC_LIMIT (PAGE_SIZE-80)
214 #define DRM_PROC_PRINT(fmt, arg...) \
215 len += sprintf(&buf[len], fmt , ##arg); \
216 if (len > DRM_PROC_LIMIT) { *eof = 1; return len - offset; }
218 #define DRM_PROC_PRINT_RET(ret, fmt, arg...) \
219 len += sprintf(&buf[len], fmt , ##arg); \
220 if (len > DRM_PROC_LIMIT) { ret; *eof = 1; return len - offset; }
224 /***********************************************************************/
225 /** \name Internal types and structures */
228 #define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x)
229 #define DRM_MIN(a,b) min(a,b)
230 #define DRM_MAX(a,b) max(a,b)
232 #define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
233 #define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
234 #define DRM_WAITCOUNT(dev,idx) DRM_BUFCOUNT(&dev->queuelist[idx]->waitlist)
236 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
238 * Get the private SAREA mapping.
240 * \param _dev DRM device.
241 * \param _ctx context number.
242 * \param _map output mapping.
244 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
245 (_map) = (_dev)->context_sareas[_ctx]; \
249 * Test that the hardware lock is held by the caller, returning otherwise.
251 * \param dev DRM device.
252 * \param filp file pointer of the caller.
254 #define LOCK_TEST_WITH_RETURN( dev, filp ) \
256 if ( !_DRM_LOCK_IS_HELD( dev->lock.hw_lock->lock ) || \
257 dev->lock.filp != filp ) { \
258 DRM_ERROR( "%s called without lock held\n", \
265 * Copy and IOCTL return string to user space
267 #define DRM_COPY( name, value ) \
268 len = strlen( value ); \
269 if ( len > name##_len ) len = name##_len; \
270 name##_len = strlen( value ); \
271 if ( len && name ) { \
272 if ( copy_to_user( name, value, len ) ) \
277 * Ioctl function type.
279 * \param inode device inode.
280 * \param filp file pointer.
281 * \param cmd command.
282 * \param arg argument.
284 typedef int drm_ioctl_t(struct inode
*inode
, struct file
*filp
,
285 unsigned int cmd
, unsigned long arg
);
287 typedef int drm_ioctl_compat_t(struct file
*filp
, unsigned int cmd
,
290 typedef struct drm_ioctl_desc
{
296 typedef struct drm_devstate
{
297 pid_t owner
; /**< X server pid holding x_lock */
300 typedef struct drm_magic_entry
{
302 struct drm_file
*priv
;
303 struct drm_magic_entry
*next
;
306 typedef struct drm_magic_head
{
307 struct drm_magic_entry
*head
;
308 struct drm_magic_entry
*tail
;
311 typedef struct drm_vma_entry
{
312 struct vm_area_struct
*vma
;
313 struct drm_vma_entry
*next
;
320 typedef struct drm_buf
{
321 int idx
; /**< Index into master buflist */
322 int total
; /**< Buffer size */
323 int order
; /**< log-base-2(total) */
324 int used
; /**< Amount of buffer in use (for DMA) */
325 unsigned long offset
; /**< Byte offset (used internally) */
326 void *address
; /**< Address of buffer */
327 unsigned long bus_address
; /**< Bus address of buffer */
328 struct drm_buf
*next
; /**< Kernel-only: used for free list */
329 __volatile__
int waiting
; /**< On kernel DMA queue */
330 __volatile__
int pending
; /**< On hardware DMA queue */
331 wait_queue_head_t dma_wait
; /**< Processes waiting */
332 struct file
*filp
; /**< Pointer to holding file descr */
333 int context
; /**< Kernel queue for this buffer */
334 int while_locked
; /**< Dispatch this buffer while locked */
342 } list
; /**< Which list we're on */
344 int dev_priv_size
; /**< Size of buffer private storage */
345 void *dev_private
; /**< Per-buffer private storage */
348 /** bufs is one longer than it has to be */
349 typedef struct drm_waitlist
{
350 int count
; /**< Number of possible buffers */
351 drm_buf_t
**bufs
; /**< List of pointers to buffers */
352 drm_buf_t
**rp
; /**< Read pointer */
353 drm_buf_t
**wp
; /**< Write pointer */
354 drm_buf_t
**end
; /**< End pointer */
355 spinlock_t read_lock
;
356 spinlock_t write_lock
;
359 typedef struct drm_freelist
{
360 int initialized
; /**< Freelist in use */
361 atomic_t count
; /**< Number of free buffers */
362 drm_buf_t
*next
; /**< End pointer */
364 wait_queue_head_t waiting
; /**< Processes waiting on free bufs */
365 int low_mark
; /**< Low water mark */
366 int high_mark
; /**< High water mark */
367 atomic_t wfh
; /**< If waiting for high mark */
372 * Buffer entry. There is one of this for each buffer size order.
374 typedef struct drm_buf_entry
{
375 int buf_size
; /**< size */
376 int buf_count
; /**< number of buffers */
377 drm_buf_t
*buflist
; /**< buffer list */
380 unsigned long *seglist
;
382 drm_freelist_t freelist
;
385 /** File private data */
386 typedef struct drm_file
{
392 unsigned long ioctl_count
;
393 struct drm_file
*next
;
394 struct drm_file
*prev
;
395 struct drm_head
*head
;
396 int remove_auth_on_close
;
397 unsigned long lock_count
;
402 typedef struct drm_queue
{
403 atomic_t use_count
; /**< Outstanding uses (+1) */
404 atomic_t finalization
; /**< Finalization in progress */
405 atomic_t block_count
; /**< Count of processes waiting */
406 atomic_t block_read
; /**< Queue blocked for reads */
407 wait_queue_head_t read_queue
; /**< Processes waiting on block_read */
408 atomic_t block_write
; /**< Queue blocked for writes */
409 wait_queue_head_t write_queue
; /**< Processes waiting on block_write */
411 atomic_t total_queued
; /**< Total queued statistic */
412 atomic_t total_flushed
; /**< Total flushes statistic */
413 atomic_t total_locks
; /**< Total locks statistics */
415 drm_ctx_flags_t flags
; /**< Context preserving and 2D-only */
416 drm_waitlist_t waitlist
; /**< Pending buffers */
417 wait_queue_head_t flush_queue
; /**< Processes waiting until flush */
423 typedef struct drm_lock_data
{
424 drm_hw_lock_t
*hw_lock
; /**< Hardware lock */
425 struct file
*filp
; /**< File descr of lock holder (0=kernel) */
426 wait_queue_head_t lock_queue
; /**< Queue of blocked processes */
427 unsigned long lock_time
; /**< Time of last lock in jiffies */
433 typedef struct drm_device_dma
{
435 drm_buf_entry_t bufs
[DRM_MAX_ORDER
+ 1]; /**< buffers, grouped by their size order */
436 int buf_count
; /**< total number of buffers */
437 drm_buf_t
**buflist
; /**< Vector of pointers into drm_device_dma::bufs */
439 int page_count
; /**< number of pages */
440 unsigned long *pagelist
; /**< page list */
441 unsigned long byte_count
;
443 _DRM_DMA_USE_AGP
= 0x01,
444 _DRM_DMA_USE_SG
= 0x02,
445 _DRM_DMA_USE_FB
= 0x04
451 * AGP memory entry. Stored as a doubly linked list.
453 typedef struct drm_agp_mem
{
454 unsigned long handle
; /**< handle */
456 unsigned long bound
; /**< address */
458 struct drm_agp_mem
*prev
; /**< previous entry */
459 struct drm_agp_mem
*next
; /**< next entry */
465 * \sa drm_agp_init() and drm_device::agp.
467 typedef struct drm_agp_head
{
468 DRM_AGP_KERN agp_info
; /**< AGP device information */
469 drm_agp_mem_t
*memory
; /**< memory entries */
470 unsigned long mode
; /**< AGP mode */
471 struct agp_bridge_data
*bridge
;
472 int enabled
; /**< whether the AGP bus as been enabled */
473 int acquired
; /**< whether the AGP device has been acquired */
476 int cant_use_aperture
;
477 unsigned long page_mask
;
481 * Scatter-gather memory.
483 typedef struct drm_sg_mem
{
484 unsigned long handle
;
487 struct page
**pagelist
;
491 typedef struct drm_sigdata
{
496 typedef struct drm_dma_handle
{
505 typedef struct drm_map_list
{
506 struct list_head head
; /**< list head */
507 drm_map_t
*map
; /**< mapping */
508 unsigned int user_token
;
511 typedef drm_map_t drm_local_map_t
;
514 * Context handle list
516 typedef struct drm_ctx_list
{
517 struct list_head head
; /**< list head */
518 drm_context_t handle
; /**< context handle */
519 drm_file_t
*tag
; /**< associated fd private data */
522 typedef struct drm_vbl_sig
{
523 struct list_head head
;
524 unsigned int sequence
;
526 struct task_struct
*task
;
529 /* location of GART table */
530 #define DRM_ATI_GART_MAIN 1
531 #define DRM_ATI_GART_FB 2
533 typedef struct ati_pcigart_info
{
534 int gart_table_location
;
538 } drm_ati_pcigart_info
;
541 * DRM driver structure. This structure represent the common code for
542 * a family of cards. There will one drm_device for each card present
548 int (*preinit
) (struct drm_device
*, unsigned long flags
);
549 void (*prerelease
) (struct drm_device
*, struct file
* filp
);
550 void (*pretakedown
) (struct drm_device
*);
551 int (*postcleanup
) (struct drm_device
*);
552 int (*presetup
) (struct drm_device
*);
553 int (*postsetup
) (struct drm_device
*);
554 int (*dma_ioctl
) (DRM_IOCTL_ARGS
);
555 int (*open_helper
) (struct drm_device
*, drm_file_t
*);
556 void (*free_filp_priv
) (struct drm_device
*, drm_file_t
*);
557 void (*release
) (struct drm_device
*, struct file
* filp
);
558 void (*dma_ready
) (struct drm_device
*);
559 int (*dma_quiescent
) (struct drm_device
*);
560 int (*context_ctor
) (struct drm_device
* dev
, int context
);
561 int (*context_dtor
) (struct drm_device
* dev
, int context
);
562 int (*kernel_context_switch
) (struct drm_device
* dev
, int old
,
564 void (*kernel_context_switch_unlock
) (struct drm_device
* dev
,
566 int (*vblank_wait
) (struct drm_device
* dev
, unsigned int *sequence
);
569 * Called by \c drm_device_is_agp. Typically used to determine if a
570 * card is really attached to AGP or not.
572 * \param dev DRM device handle
575 * One of three values is returned depending on whether or not the
576 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
577 * (return of 1), or may or may not be AGP (return of 2).
579 int (*device_is_agp
) (struct drm_device
* dev
);
581 /* these have to be filled in */
583 int (*postinit
) (struct drm_device
*, unsigned long flags
);
584 irqreturn_t(*irq_handler
) (DRM_IRQ_ARGS
);
585 void (*irq_preinstall
) (struct drm_device
* dev
);
586 void (*irq_postinstall
) (struct drm_device
* dev
);
587 void (*irq_uninstall
) (struct drm_device
* dev
);
588 void (*reclaim_buffers
) (struct drm_device
* dev
, struct file
* filp
);
589 unsigned long (*get_map_ofs
) (drm_map_t
* map
);
590 unsigned long (*get_reg_ofs
) (struct drm_device
* dev
);
591 void (*set_version
) (struct drm_device
* dev
, drm_set_version_t
* sv
);
592 int (*version
) (drm_version_t
* version
);
595 drm_ioctl_desc_t
*ioctls
;
597 struct file_operations fops
;
598 struct pci_driver pci_driver
;
602 * DRM head structure. This structure represent a video head on a card
603 * that may contain multiple heads. Embed one per head of these in the
604 * private drm_device structure.
606 typedef struct drm_head
{
607 int minor
; /**< Minor device number */
608 struct drm_device
*dev
;
609 struct proc_dir_entry
*dev_root
; /**< proc directory entry */
610 dev_t device
; /**< Device number for mknod */
611 struct class_device
*dev_class
;
615 * DRM device structure. This structure represent a complete card that
616 * may contain multiple heads.
618 typedef struct drm_device
{
619 char *unique
; /**< Unique identifier: e.g., busid */
620 int unique_len
; /**< Length of unique field */
621 char *devname
; /**< For /proc/interrupts */
622 int if_version
; /**< Highest interface version set */
624 int blocked
; /**< Blocked due to VC switch? */
628 spinlock_t count_lock
; /**< For inuse, drm_device::open_count, drm_device::buf_use */
629 struct semaphore struct_sem
; /**< For others */
632 /** \name Usage Counters */
634 int open_count
; /**< Outstanding files open */
635 atomic_t ioctl_count
; /**< Outstanding IOCTLs pending */
636 atomic_t vma_count
; /**< Outstanding vma areas open */
637 int buf_use
; /**< Buffers in use -- cannot alloc */
638 atomic_t buf_alloc
; /**< Buffer allocation in progress */
641 /** \name Performance counters */
643 unsigned long counters
;
644 drm_stat_type_t types
[15];
648 /** \name Authentication */
650 drm_file_t
*file_first
; /**< file list head */
651 drm_file_t
*file_last
; /**< file list tail */
652 drm_magic_head_t magiclist
[DRM_HASH_SIZE
]; /**< magic hash table */
655 /** \name Memory management */
657 drm_map_list_t
*maplist
; /**< Linked list of regions */
658 int map_count
; /**< Number of mappable regions */
660 /** \name Context handle management */
662 drm_ctx_list_t
*ctxlist
; /**< Linked list of context handles */
663 int ctx_count
; /**< Number of context handles */
664 struct semaphore ctxlist_sem
; /**< For ctxlist */
666 drm_map_t
**context_sareas
; /**< per-context SAREA's */
669 drm_vma_entry_t
*vmalist
; /**< List of vmas (for debugging) */
670 drm_lock_data_t lock
; /**< Information on hardware lock */
673 /** \name DMA queues (contexts) */
675 int queue_count
; /**< Number of active DMA queues */
676 int queue_reserved
; /**< Number of reserved DMA queues */
677 int queue_slots
; /**< Actual length of queuelist */
678 drm_queue_t
**queuelist
; /**< Vector of pointers to DMA queues */
679 drm_device_dma_t
*dma
; /**< Optional pointer for DMA support */
682 /** \name Context support */
684 int irq
; /**< Interrupt used by board */
685 int irq_enabled
; /**< True if irq handler is enabled */
686 __volatile__
long context_flag
; /**< Context swapping flag */
687 __volatile__
long interrupt_flag
; /**< Interruption handler flag */
688 __volatile__
long dma_flag
; /**< DMA dispatch flag */
689 struct timer_list timer
; /**< Timer for delaying ctx switch */
690 wait_queue_head_t context_wait
; /**< Processes waiting on ctx switch */
691 int last_checked
; /**< Last context checked for DMA */
692 int last_context
; /**< Last current context */
693 unsigned long last_switch
; /**< jiffies at last context switch */
696 struct work_struct work
;
697 /** \name VBLANK IRQ support */
700 wait_queue_head_t vbl_queue
; /**< VBLANK wait queue */
701 atomic_t vbl_received
;
703 drm_vbl_sig_t vbl_sigs
; /**< signal list to send on VBLANK */
704 unsigned int vbl_pending
;
710 char buf
[DRM_BSZ
]; /**< Output buffer */
711 char *buf_rp
; /**< Read pointer */
712 char *buf_wp
; /**< Write pointer */
713 char *buf_end
; /**< End pointer */
714 struct fasync_struct
*buf_async
;/**< Processes waiting for SIGIO */
715 wait_queue_head_t buf_readers
; /**< Processes waiting to read */
716 wait_queue_head_t buf_writers
; /**< Processes waiting to ctx switch */
718 drm_agp_head_t
*agp
; /**< AGP data */
720 struct pci_dev
*pdev
; /**< PCI device structure */
721 int pci_domain
; /**< PCI bus domain number */
722 int pci_bus
; /**< PCI bus number */
723 int pci_slot
; /**< PCI slot number */
724 int pci_func
; /**< PCI function number */
726 struct pci_controller
*hose
;
728 drm_sg_mem_t
*sg
; /**< Scatter gather memory */
729 unsigned long *ctx_bitmap
; /**< context bitmap */
730 void *dev_private
; /**< device private data */
731 drm_sigdata_t sigdata
; /**< For block_all_signals */
734 struct drm_driver
*driver
;
735 drm_local_map_t
*agp_buffer_map
;
736 unsigned int agp_buffer_token
;
737 drm_head_t primary
; /**< primary screen head */
740 static __inline__
int drm_core_check_feature(struct drm_device
*dev
,
743 return ((dev
->driver
->driver_features
& feature
) ? 1 : 0);
747 static inline int drm_core_has_AGP(struct drm_device
*dev
)
749 return drm_core_check_feature(dev
, DRIVER_USE_AGP
);
752 #define drm_core_has_AGP(dev) (0)
756 static inline int drm_core_has_MTRR(struct drm_device
*dev
)
758 return drm_core_check_feature(dev
, DRIVER_USE_MTRR
);
761 #define drm_core_has_MTRR(dev) (0)
764 /******************************************************************/
765 /** \name Internal function definitions */
768 /* Misc. support (drm_init.h) */
769 extern int drm_flags
;
770 extern void drm_parse_options(char *s
);
771 extern int drm_cpu_valid(void);
773 /* Driver support (drm_drv.h) */
774 extern int drm_init(struct drm_driver
*driver
);
775 extern void drm_exit(struct drm_driver
*driver
);
776 extern int drm_ioctl(struct inode
*inode
, struct file
*filp
,
777 unsigned int cmd
, unsigned long arg
);
778 extern long drm_compat_ioctl(struct file
*filp
,
779 unsigned int cmd
, unsigned long arg
);
780 extern int drm_takedown(drm_device_t
* dev
);
782 /* Device support (drm_fops.h) */
783 extern int drm_open(struct inode
*inode
, struct file
*filp
);
784 extern int drm_stub_open(struct inode
*inode
, struct file
*filp
);
785 extern int drm_flush(struct file
*filp
);
786 extern int drm_fasync(int fd
, struct file
*filp
, int on
);
787 extern int drm_release(struct inode
*inode
, struct file
*filp
);
789 /* Mapping support (drm_vm.h) */
790 extern int drm_mmap(struct file
*filp
, struct vm_area_struct
*vma
);
791 extern unsigned int drm_poll(struct file
*filp
, struct poll_table_struct
*wait
);
793 /* Memory management support (drm_memory.h) */
794 #include "drm_memory.h"
795 extern void drm_mem_init(void);
796 extern int drm_mem_info(char *buf
, char **start
, off_t offset
,
797 int request
, int *eof
, void *data
);
798 extern void *drm_realloc(void *oldpt
, size_t oldsize
, size_t size
, int area
);
799 extern unsigned long drm_alloc_pages(int order
, int area
);
800 extern void drm_free_pages(unsigned long address
, int order
, int area
);
801 extern void *drm_ioremap(unsigned long offset
, unsigned long size
,
803 extern void *drm_ioremap_nocache(unsigned long offset
, unsigned long size
,
805 extern void drm_ioremapfree(void *pt
, unsigned long size
, drm_device_t
* dev
);
807 extern DRM_AGP_MEM
*drm_alloc_agp(drm_device_t
* dev
, int pages
, u32 type
);
808 extern int drm_free_agp(DRM_AGP_MEM
* handle
, int pages
);
809 extern int drm_bind_agp(DRM_AGP_MEM
* handle
, unsigned int start
);
810 extern int drm_unbind_agp(DRM_AGP_MEM
* handle
);
812 /* Misc. IOCTL support (drm_ioctl.h) */
813 extern int drm_irq_by_busid(struct inode
*inode
, struct file
*filp
,
814 unsigned int cmd
, unsigned long arg
);
815 extern int drm_getunique(struct inode
*inode
, struct file
*filp
,
816 unsigned int cmd
, unsigned long arg
);
817 extern int drm_setunique(struct inode
*inode
, struct file
*filp
,
818 unsigned int cmd
, unsigned long arg
);
819 extern int drm_getmap(struct inode
*inode
, struct file
*filp
,
820 unsigned int cmd
, unsigned long arg
);
821 extern int drm_getclient(struct inode
*inode
, struct file
*filp
,
822 unsigned int cmd
, unsigned long arg
);
823 extern int drm_getstats(struct inode
*inode
, struct file
*filp
,
824 unsigned int cmd
, unsigned long arg
);
825 extern int drm_setversion(struct inode
*inode
, struct file
*filp
,
826 unsigned int cmd
, unsigned long arg
);
828 /* Context IOCTL support (drm_context.h) */
829 extern int drm_resctx(struct inode
*inode
, struct file
*filp
,
830 unsigned int cmd
, unsigned long arg
);
831 extern int drm_addctx(struct inode
*inode
, struct file
*filp
,
832 unsigned int cmd
, unsigned long arg
);
833 extern int drm_modctx(struct inode
*inode
, struct file
*filp
,
834 unsigned int cmd
, unsigned long arg
);
835 extern int drm_getctx(struct inode
*inode
, struct file
*filp
,
836 unsigned int cmd
, unsigned long arg
);
837 extern int drm_switchctx(struct inode
*inode
, struct file
*filp
,
838 unsigned int cmd
, unsigned long arg
);
839 extern int drm_newctx(struct inode
*inode
, struct file
*filp
,
840 unsigned int cmd
, unsigned long arg
);
841 extern int drm_rmctx(struct inode
*inode
, struct file
*filp
,
842 unsigned int cmd
, unsigned long arg
);
844 extern int drm_ctxbitmap_init(drm_device_t
* dev
);
845 extern void drm_ctxbitmap_cleanup(drm_device_t
* dev
);
846 extern void drm_ctxbitmap_free(drm_device_t
* dev
, int ctx_handle
);
848 extern int drm_setsareactx(struct inode
*inode
, struct file
*filp
,
849 unsigned int cmd
, unsigned long arg
);
850 extern int drm_getsareactx(struct inode
*inode
, struct file
*filp
,
851 unsigned int cmd
, unsigned long arg
);
853 /* Drawable IOCTL support (drm_drawable.h) */
854 extern int drm_adddraw(struct inode
*inode
, struct file
*filp
,
855 unsigned int cmd
, unsigned long arg
);
856 extern int drm_rmdraw(struct inode
*inode
, struct file
*filp
,
857 unsigned int cmd
, unsigned long arg
);
859 /* Authentication IOCTL support (drm_auth.h) */
860 extern int drm_getmagic(struct inode
*inode
, struct file
*filp
,
861 unsigned int cmd
, unsigned long arg
);
862 extern int drm_authmagic(struct inode
*inode
, struct file
*filp
,
863 unsigned int cmd
, unsigned long arg
);
865 /* Placeholder for ioctls past */
866 extern int drm_noop(struct inode
*inode
, struct file
*filp
,
867 unsigned int cmd
, unsigned long arg
);
869 /* Locking IOCTL support (drm_lock.h) */
870 extern int drm_lock(struct inode
*inode
, struct file
*filp
,
871 unsigned int cmd
, unsigned long arg
);
872 extern int drm_unlock(struct inode
*inode
, struct file
*filp
,
873 unsigned int cmd
, unsigned long arg
);
874 extern int drm_lock_take(__volatile__
unsigned int *lock
, unsigned int context
);
875 extern int drm_lock_free(drm_device_t
* dev
,
876 __volatile__
unsigned int *lock
, unsigned int context
);
878 /* Buffer management support (drm_bufs.h) */
879 extern int drm_addbufs_agp(drm_device_t
* dev
, drm_buf_desc_t
* request
);
880 extern int drm_addbufs_pci(drm_device_t
* dev
, drm_buf_desc_t
* request
);
881 extern int drm_addmap(drm_device_t
* dev
, unsigned int offset
,
882 unsigned int size
, drm_map_type_t type
,
883 drm_map_flags_t flags
, drm_local_map_t
** map_ptr
);
884 extern int drm_addmap_ioctl(struct inode
*inode
, struct file
*filp
,
885 unsigned int cmd
, unsigned long arg
);
886 extern int drm_rmmap(drm_device_t
* dev
, drm_local_map_t
* map
);
887 extern int drm_rmmap_locked(drm_device_t
* dev
, drm_local_map_t
* map
);
888 extern int drm_rmmap_ioctl(struct inode
*inode
, struct file
*filp
,
889 unsigned int cmd
, unsigned long arg
);
891 extern int drm_order(unsigned long size
);
892 extern int drm_addbufs(struct inode
*inode
, struct file
*filp
,
893 unsigned int cmd
, unsigned long arg
);
894 extern int drm_infobufs(struct inode
*inode
, struct file
*filp
,
895 unsigned int cmd
, unsigned long arg
);
896 extern int drm_markbufs(struct inode
*inode
, struct file
*filp
,
897 unsigned int cmd
, unsigned long arg
);
898 extern int drm_freebufs(struct inode
*inode
, struct file
*filp
,
899 unsigned int cmd
, unsigned long arg
);
900 extern int drm_mapbufs(struct inode
*inode
, struct file
*filp
,
901 unsigned int cmd
, unsigned long arg
);
902 extern unsigned long drm_get_resource_start(drm_device_t
* dev
,
903 unsigned int resource
);
904 extern unsigned long drm_get_resource_len(drm_device_t
* dev
,
905 unsigned int resource
);
907 /* DMA support (drm_dma.h) */
908 extern int drm_dma_setup(drm_device_t
* dev
);
909 extern void drm_dma_takedown(drm_device_t
* dev
);
910 extern void drm_free_buffer(drm_device_t
* dev
, drm_buf_t
* buf
);
911 extern void drm_core_reclaim_buffers(drm_device_t
* dev
, struct file
*filp
);
913 /* IRQ support (drm_irq.h) */
914 extern int drm_control(struct inode
*inode
, struct file
*filp
,
915 unsigned int cmd
, unsigned long arg
);
916 extern int drm_irq_uninstall(drm_device_t
* dev
);
917 extern irqreturn_t
drm_irq_handler(DRM_IRQ_ARGS
);
918 extern void drm_driver_irq_preinstall(drm_device_t
* dev
);
919 extern void drm_driver_irq_postinstall(drm_device_t
* dev
);
920 extern void drm_driver_irq_uninstall(drm_device_t
* dev
);
922 extern int drm_wait_vblank(struct inode
*inode
, struct file
*filp
,
923 unsigned int cmd
, unsigned long arg
);
924 extern int drm_vblank_wait(drm_device_t
* dev
, unsigned int *vbl_seq
);
925 extern void drm_vbl_send_signals(drm_device_t
* dev
);
927 /* AGP/GART support (drm_agpsupport.h) */
928 extern drm_agp_head_t
*drm_agp_init(drm_device_t
* dev
);
929 extern int drm_agp_acquire(drm_device_t
* dev
);
930 extern int drm_agp_acquire_ioctl(struct inode
*inode
, struct file
*filp
,
931 unsigned int cmd
, unsigned long arg
);
932 extern int drm_agp_release(drm_device_t
* dev
);
933 extern int drm_agp_release_ioctl(struct inode
*inode
, struct file
*filp
,
934 unsigned int cmd
, unsigned long arg
);
935 extern int drm_agp_enable(drm_device_t
* dev
, drm_agp_mode_t mode
);
936 extern int drm_agp_enable_ioctl(struct inode
*inode
, struct file
*filp
,
937 unsigned int cmd
, unsigned long arg
);
938 extern int drm_agp_info(drm_device_t
* dev
, drm_agp_info_t
* info
);
939 extern int drm_agp_info_ioctl(struct inode
*inode
, struct file
*filp
,
940 unsigned int cmd
, unsigned long arg
);
941 extern int drm_agp_alloc(struct inode
*inode
, struct file
*filp
,
942 unsigned int cmd
, unsigned long arg
);
943 extern int drm_agp_free(struct inode
*inode
, struct file
*filp
,
944 unsigned int cmd
, unsigned long arg
);
945 extern int drm_agp_unbind(struct inode
*inode
, struct file
*filp
,
946 unsigned int cmd
, unsigned long arg
);
947 extern int drm_agp_bind(struct inode
*inode
, struct file
*filp
,
948 unsigned int cmd
, unsigned long arg
);
949 extern DRM_AGP_MEM
*drm_agp_allocate_memory(struct agp_bridge_data
*bridge
,
950 size_t pages
, u32 type
);
951 extern int drm_agp_free_memory(DRM_AGP_MEM
* handle
);
952 extern int drm_agp_bind_memory(DRM_AGP_MEM
* handle
, off_t start
);
953 extern int drm_agp_unbind_memory(DRM_AGP_MEM
* handle
);
955 /* Stub support (drm_stub.h) */
956 extern int drm_get_dev(struct pci_dev
*pdev
, const struct pci_device_id
*ent
,
957 struct drm_driver
*driver
);
958 extern int drm_put_dev(drm_device_t
* dev
);
959 extern int drm_put_head(drm_head_t
* head
);
960 extern unsigned int drm_debug
;
961 extern unsigned int drm_cards_limit
;
962 extern drm_head_t
**drm_heads
;
963 extern struct drm_sysfs_class
*drm_class
;
964 extern struct proc_dir_entry
*drm_proc_root
;
966 /* Proc support (drm_proc.h) */
967 extern int drm_proc_init(drm_device_t
* dev
,
969 struct proc_dir_entry
*root
,
970 struct proc_dir_entry
**dev_root
);
971 extern int drm_proc_cleanup(int minor
,
972 struct proc_dir_entry
*root
,
973 struct proc_dir_entry
*dev_root
);
975 /* Scatter Gather Support (drm_scatter.h) */
976 extern void drm_sg_cleanup(drm_sg_mem_t
* entry
);
977 extern int drm_sg_alloc(struct inode
*inode
, struct file
*filp
,
978 unsigned int cmd
, unsigned long arg
);
979 extern int drm_sg_free(struct inode
*inode
, struct file
*filp
,
980 unsigned int cmd
, unsigned long arg
);
982 /* ATI PCIGART support (ati_pcigart.h) */
983 extern int drm_ati_pcigart_init(drm_device_t
* dev
,
984 drm_ati_pcigart_info
* gart_info
);
985 extern int drm_ati_pcigart_cleanup(drm_device_t
* dev
,
986 drm_ati_pcigart_info
* gart_info
);
988 extern drm_dma_handle_t
*drm_pci_alloc(drm_device_t
* dev
, size_t size
,
989 size_t align
, dma_addr_t maxaddr
);
990 extern void __drm_pci_free(drm_device_t
* dev
, drm_dma_handle_t
* dmah
);
991 extern void drm_pci_free(drm_device_t
* dev
, drm_dma_handle_t
* dmah
);
993 /* sysfs support (drm_sysfs.c) */
994 struct drm_sysfs_class
;
995 extern struct drm_sysfs_class
*drm_sysfs_create(struct module
*owner
,
997 extern void drm_sysfs_destroy(struct drm_sysfs_class
*cs
);
998 extern struct class_device
*drm_sysfs_device_add(struct drm_sysfs_class
*cs
,
1000 struct device
*device
,
1001 const char *fmt
, ...);
1002 extern void drm_sysfs_device_remove(dev_t dev
);
1004 /* Inline replacements for DRM_IOREMAP macros */
1005 static __inline__
void drm_core_ioremap(struct drm_map
*map
,
1006 struct drm_device
*dev
)
1008 map
->handle
= drm_ioremap(map
->offset
, map
->size
, dev
);
1011 static __inline__
void drm_core_ioremap_nocache(struct drm_map
*map
,
1012 struct drm_device
*dev
)
1014 map
->handle
= drm_ioremap_nocache(map
->offset
, map
->size
, dev
);
1017 static __inline__
void drm_core_ioremapfree(struct drm_map
*map
,
1018 struct drm_device
*dev
)
1020 if (map
->handle
&& map
->size
)
1021 drm_ioremapfree(map
->handle
, map
->size
, dev
);
1024 static __inline__
struct drm_map
*drm_core_findmap(struct drm_device
*dev
,
1027 drm_map_list_t
*_entry
;
1028 list_for_each_entry(_entry
, &dev
->maplist
->head
, head
)
1029 if (_entry
->user_token
== token
)
1034 static __inline__
int drm_device_is_agp(drm_device_t
* dev
)
1036 if (dev
->driver
->device_is_agp
!= NULL
) {
1037 int err
= (*dev
->driver
->device_is_agp
) (dev
);
1044 return pci_find_capability(dev
->pdev
, PCI_CAP_ID_AGP
);
1047 static __inline__
int drm_device_is_pcie(drm_device_t
* dev
)
1049 return pci_find_capability(dev
->pdev
, PCI_CAP_ID_EXP
);
1052 static __inline__
void drm_core_dropmap(struct drm_map
*map
)
1056 #ifndef DEBUG_MEMORY
1057 /** Wrapper around kmalloc() */
1058 static __inline__
void *drm_alloc(size_t size
, int area
)
1060 return kmalloc(size
, GFP_KERNEL
);
1063 /** Wrapper around kfree() */
1064 static __inline__
void drm_free(void *pt
, size_t size
, int area
)
1069 /** Wrapper around kcalloc() */
1070 static __inline__
void *drm_calloc(size_t nmemb
, size_t size
, int area
)
1072 return kcalloc(nmemb
, size
, GFP_KERNEL
);
1075 extern void *drm_alloc(size_t size
, int area
);
1076 extern void drm_free(void *pt
, size_t size
, int area
);
1077 extern void *drm_calloc(size_t nmemb
, size_t size
, int area
);
1082 extern unsigned long drm_core_get_map_ofs(drm_map_t
* map
);
1083 extern unsigned long drm_core_get_reg_ofs(struct drm_device
*dev
);
1085 #ifndef pci_pretty_name
1086 #define pci_pretty_name(dev) ""
1089 #endif /* __KERNEL__ */