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_TIME_SLICE (HZ/20) /**< Time slice for GLXContexts */
112 #define DRM_LOCK_SLICE 1 /**< Time slice for lock, in jiffies */
114 #define DRM_FLAG_DEBUG 0x01
116 #define DRM_MEM_DMA 0
117 #define DRM_MEM_SAREA 1
118 #define DRM_MEM_DRIVER 2
119 #define DRM_MEM_MAGIC 3
120 #define DRM_MEM_IOCTLS 4
121 #define DRM_MEM_MAPS 5
122 #define DRM_MEM_VMAS 6
123 #define DRM_MEM_BUFS 7
124 #define DRM_MEM_SEGS 8
125 #define DRM_MEM_PAGES 9
126 #define DRM_MEM_FILES 10
127 #define DRM_MEM_QUEUES 11
128 #define DRM_MEM_CMDS 12
129 #define DRM_MEM_MAPPINGS 13
130 #define DRM_MEM_BUFLISTS 14
131 #define DRM_MEM_AGPLISTS 15
132 #define DRM_MEM_TOTALAGP 16
133 #define DRM_MEM_BOUNDAGP 17
134 #define DRM_MEM_CTXBITMAP 18
135 #define DRM_MEM_STUB 19
136 #define DRM_MEM_SGLISTS 20
137 #define DRM_MEM_CTXLIST 21
139 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
143 /***********************************************************************/
144 /** \name Backward compatibility section */
147 #define DRM_RPR_ARG(vma) vma,
149 #define VM_OFFSET(vma) ((vma)->vm_pgoff << PAGE_SHIFT)
153 /***********************************************************************/
154 /** \name Macros to make printk easier */
160 * \param fmt printf() like format string.
161 * \param arg arguments
163 #define DRM_ERROR(fmt, arg...) \
164 printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* " fmt , __FUNCTION__ , ##arg)
167 * Memory error output.
169 * \param area memory area where the error occurred.
170 * \param fmt printf() like format string.
171 * \param arg arguments
173 #define DRM_MEM_ERROR(area, fmt, arg...) \
174 printk(KERN_ERR "[" DRM_NAME ":%s:%s] *ERROR* " fmt , __FUNCTION__, \
175 drm_mem_stats[area].name , ##arg)
177 #define DRM_INFO(fmt, arg...) printk(KERN_INFO "[" DRM_NAME "] " fmt , ##arg)
182 * \param fmt printf() like format string.
183 * \param arg arguments
186 #define DRM_DEBUG(fmt, arg...) \
190 "[" DRM_NAME ":%s] " fmt , \
191 __FUNCTION__ , ##arg); \
194 #define DRM_DEBUG(fmt, arg...) do { } while (0)
197 #define DRM_PROC_LIMIT (PAGE_SIZE-80)
199 #define DRM_PROC_PRINT(fmt, arg...) \
200 len += sprintf(&buf[len], fmt , ##arg); \
201 if (len > DRM_PROC_LIMIT) { *eof = 1; return len - offset; }
203 #define DRM_PROC_PRINT_RET(ret, fmt, arg...) \
204 len += sprintf(&buf[len], fmt , ##arg); \
205 if (len > DRM_PROC_LIMIT) { ret; *eof = 1; return len - offset; }
209 /***********************************************************************/
210 /** \name Internal types and structures */
213 #define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x)
214 #define DRM_MIN(a,b) min(a,b)
215 #define DRM_MAX(a,b) max(a,b)
217 #define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
218 #define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
219 #define DRM_WAITCOUNT(dev,idx) DRM_BUFCOUNT(&dev->queuelist[idx]->waitlist)
221 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
223 * Get the private SAREA mapping.
225 * \param _dev DRM device.
226 * \param _ctx context number.
227 * \param _map output mapping.
229 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
230 (_map) = (_dev)->context_sareas[_ctx]; \
234 * Test that the hardware lock is held by the caller, returning otherwise.
236 * \param dev DRM device.
237 * \param filp file pointer of the caller.
239 #define LOCK_TEST_WITH_RETURN( dev, filp ) \
241 if ( !_DRM_LOCK_IS_HELD( dev->lock.hw_lock->lock ) || \
242 dev->lock.filp != filp ) { \
243 DRM_ERROR( "%s called without lock held\n", \
250 * Copy and IOCTL return string to user space
252 #define DRM_COPY( name, value ) \
253 len = strlen( value ); \
254 if ( len > name##_len ) len = name##_len; \
255 name##_len = strlen( value ); \
256 if ( len && name ) { \
257 if ( copy_to_user( name, value, len ) ) \
262 * Ioctl function type.
264 * \param inode device inode.
265 * \param filp file pointer.
266 * \param cmd command.
267 * \param arg argument.
269 typedef int drm_ioctl_t(struct inode
*inode
, struct file
*filp
,
270 unsigned int cmd
, unsigned long arg
);
272 typedef int drm_ioctl_compat_t(struct file
*filp
, unsigned int cmd
,
276 #define DRM_MASTER 0x2
277 #define DRM_ROOT_ONLY 0x4
279 typedef struct drm_ioctl_desc
{
284 typedef struct drm_devstate
{
285 pid_t owner
; /**< X server pid holding x_lock */
288 typedef struct drm_magic_entry
{
290 struct drm_file
*priv
;
291 struct drm_magic_entry
*next
;
294 typedef struct drm_magic_head
{
295 struct drm_magic_entry
*head
;
296 struct drm_magic_entry
*tail
;
299 typedef struct drm_vma_entry
{
300 struct vm_area_struct
*vma
;
301 struct drm_vma_entry
*next
;
308 typedef struct drm_buf
{
309 int idx
; /**< Index into master buflist */
310 int total
; /**< Buffer size */
311 int order
; /**< log-base-2(total) */
312 int used
; /**< Amount of buffer in use (for DMA) */
313 unsigned long offset
; /**< Byte offset (used internally) */
314 void *address
; /**< Address of buffer */
315 unsigned long bus_address
; /**< Bus address of buffer */
316 struct drm_buf
*next
; /**< Kernel-only: used for free list */
317 __volatile__
int waiting
; /**< On kernel DMA queue */
318 __volatile__
int pending
; /**< On hardware DMA queue */
319 wait_queue_head_t dma_wait
; /**< Processes waiting */
320 struct file
*filp
; /**< Pointer to holding file descr */
321 int context
; /**< Kernel queue for this buffer */
322 int while_locked
; /**< Dispatch this buffer while locked */
330 } list
; /**< Which list we're on */
332 int dev_priv_size
; /**< Size of buffer private storage */
333 void *dev_private
; /**< Per-buffer private storage */
336 /** bufs is one longer than it has to be */
337 typedef struct drm_waitlist
{
338 int count
; /**< Number of possible buffers */
339 drm_buf_t
**bufs
; /**< List of pointers to buffers */
340 drm_buf_t
**rp
; /**< Read pointer */
341 drm_buf_t
**wp
; /**< Write pointer */
342 drm_buf_t
**end
; /**< End pointer */
343 spinlock_t read_lock
;
344 spinlock_t write_lock
;
347 typedef struct drm_freelist
{
348 int initialized
; /**< Freelist in use */
349 atomic_t count
; /**< Number of free buffers */
350 drm_buf_t
*next
; /**< End pointer */
352 wait_queue_head_t waiting
; /**< Processes waiting on free bufs */
353 int low_mark
; /**< Low water mark */
354 int high_mark
; /**< High water mark */
355 atomic_t wfh
; /**< If waiting for high mark */
360 * Buffer entry. There is one of this for each buffer size order.
362 typedef struct drm_buf_entry
{
363 int buf_size
; /**< size */
364 int buf_count
; /**< number of buffers */
365 drm_buf_t
*buflist
; /**< buffer list */
368 unsigned long *seglist
;
370 drm_freelist_t freelist
;
373 /** File private data */
374 typedef struct drm_file
{
381 unsigned long ioctl_count
;
382 struct drm_file
*next
;
383 struct drm_file
*prev
;
384 struct drm_head
*head
;
385 int remove_auth_on_close
;
386 unsigned long lock_count
;
391 typedef struct drm_queue
{
392 atomic_t use_count
; /**< Outstanding uses (+1) */
393 atomic_t finalization
; /**< Finalization in progress */
394 atomic_t block_count
; /**< Count of processes waiting */
395 atomic_t block_read
; /**< Queue blocked for reads */
396 wait_queue_head_t read_queue
; /**< Processes waiting on block_read */
397 atomic_t block_write
; /**< Queue blocked for writes */
398 wait_queue_head_t write_queue
; /**< Processes waiting on block_write */
400 atomic_t total_queued
; /**< Total queued statistic */
401 atomic_t total_flushed
; /**< Total flushes statistic */
402 atomic_t total_locks
; /**< Total locks statistics */
404 drm_ctx_flags_t flags
; /**< Context preserving and 2D-only */
405 drm_waitlist_t waitlist
; /**< Pending buffers */
406 wait_queue_head_t flush_queue
; /**< Processes waiting until flush */
412 typedef struct drm_lock_data
{
413 drm_hw_lock_t
*hw_lock
; /**< Hardware lock */
414 struct file
*filp
; /**< File descr of lock holder (0=kernel) */
415 wait_queue_head_t lock_queue
; /**< Queue of blocked processes */
416 unsigned long lock_time
; /**< Time of last lock in jiffies */
422 typedef struct drm_device_dma
{
424 drm_buf_entry_t bufs
[DRM_MAX_ORDER
+ 1]; /**< buffers, grouped by their size order */
425 int buf_count
; /**< total number of buffers */
426 drm_buf_t
**buflist
; /**< Vector of pointers into drm_device_dma::bufs */
428 int page_count
; /**< number of pages */
429 unsigned long *pagelist
; /**< page list */
430 unsigned long byte_count
;
432 _DRM_DMA_USE_AGP
= 0x01,
433 _DRM_DMA_USE_SG
= 0x02,
434 _DRM_DMA_USE_FB
= 0x04
440 * AGP memory entry. Stored as a doubly linked list.
442 typedef struct drm_agp_mem
{
443 unsigned long handle
; /**< handle */
445 unsigned long bound
; /**< address */
447 struct drm_agp_mem
*prev
; /**< previous entry */
448 struct drm_agp_mem
*next
; /**< next entry */
454 * \sa drm_agp_init() and drm_device::agp.
456 typedef struct drm_agp_head
{
457 DRM_AGP_KERN agp_info
; /**< AGP device information */
458 drm_agp_mem_t
*memory
; /**< memory entries */
459 unsigned long mode
; /**< AGP mode */
460 struct agp_bridge_data
*bridge
;
461 int enabled
; /**< whether the AGP bus as been enabled */
462 int acquired
; /**< whether the AGP device has been acquired */
465 int cant_use_aperture
;
466 unsigned long page_mask
;
470 * Scatter-gather memory.
472 typedef struct drm_sg_mem
{
473 unsigned long handle
;
476 struct page
**pagelist
;
480 typedef struct drm_sigdata
{
485 typedef struct drm_dma_handle
{
494 typedef struct drm_map_list
{
495 struct list_head head
; /**< list head */
496 drm_map_t
*map
; /**< mapping */
497 unsigned int user_token
;
500 typedef drm_map_t drm_local_map_t
;
503 * Context handle list
505 typedef struct drm_ctx_list
{
506 struct list_head head
; /**< list head */
507 drm_context_t handle
; /**< context handle */
508 drm_file_t
*tag
; /**< associated fd private data */
511 typedef struct drm_vbl_sig
{
512 struct list_head head
;
513 unsigned int sequence
;
515 struct task_struct
*task
;
518 /* location of GART table */
519 #define DRM_ATI_GART_MAIN 1
520 #define DRM_ATI_GART_FB 2
522 typedef struct ati_pcigart_info
{
523 int gart_table_location
;
527 } drm_ati_pcigart_info
;
530 * DRM driver structure. This structure represent the common code for
531 * a family of cards. There will one drm_device for each card present
537 int (*load
) (struct drm_device
*, unsigned long flags
);
538 int (*firstopen
) (struct drm_device
*);
539 int (*open
) (struct drm_device
*, drm_file_t
*);
540 void (*preclose
) (struct drm_device
*, struct file
* filp
);
541 void (*postclose
) (struct drm_device
*, drm_file_t
*);
542 void (*lastclose
) (struct drm_device
*);
543 int (*unload
) (struct drm_device
*);
544 int (*dma_ioctl
) (DRM_IOCTL_ARGS
);
545 void (*dma_ready
) (struct drm_device
*);
546 int (*dma_quiescent
) (struct drm_device
*);
547 int (*context_ctor
) (struct drm_device
* dev
, int context
);
548 int (*context_dtor
) (struct drm_device
* dev
, int context
);
549 int (*kernel_context_switch
) (struct drm_device
* dev
, int old
,
551 void (*kernel_context_switch_unlock
) (struct drm_device
* dev
,
553 int (*vblank_wait
) (struct drm_device
* dev
, unsigned int *sequence
);
554 int (*dri_library_name
) (struct drm_device
*dev
, char *buf
);
557 * Called by \c drm_device_is_agp. Typically used to determine if a
558 * card is really attached to AGP or not.
560 * \param dev DRM device handle
563 * One of three values is returned depending on whether or not the
564 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
565 * (return of 1), or may or may not be AGP (return of 2).
567 int (*device_is_agp
) (struct drm_device
* dev
);
569 /* these have to be filled in */
571 irqreturn_t(*irq_handler
) (DRM_IRQ_ARGS
);
572 void (*irq_preinstall
) (struct drm_device
* dev
);
573 void (*irq_postinstall
) (struct drm_device
* dev
);
574 void (*irq_uninstall
) (struct drm_device
* dev
);
575 void (*reclaim_buffers
) (struct drm_device
* dev
, struct file
* filp
);
576 void (*reclaim_buffers_locked
) (struct drm_device
*drv
,
578 unsigned long (*get_map_ofs
) (drm_map_t
* map
);
579 unsigned long (*get_reg_ofs
) (struct drm_device
* dev
);
580 void (*set_version
) (struct drm_device
* dev
, drm_set_version_t
* sv
);
581 int (*version
) (drm_version_t
* version
);
592 drm_ioctl_desc_t
*ioctls
;
594 struct file_operations fops
;
595 struct pci_driver pci_driver
;
599 * DRM head structure. This structure represent a video head on a card
600 * that may contain multiple heads. Embed one per head of these in the
601 * private drm_device structure.
603 typedef struct drm_head
{
604 int minor
; /**< Minor device number */
605 struct drm_device
*dev
;
606 struct proc_dir_entry
*dev_root
; /**< proc directory entry */
607 dev_t device
; /**< Device number for mknod */
608 struct class_device
*dev_class
;
612 * DRM device structure. This structure represent a complete card that
613 * may contain multiple heads.
615 typedef struct drm_device
{
616 char *unique
; /**< Unique identifier: e.g., busid */
617 int unique_len
; /**< Length of unique field */
618 char *devname
; /**< For /proc/interrupts */
619 int if_version
; /**< Highest interface version set */
621 int blocked
; /**< Blocked due to VC switch? */
625 spinlock_t count_lock
; /**< For inuse, drm_device::open_count, drm_device::buf_use */
626 struct semaphore struct_sem
; /**< For others */
629 /** \name Usage Counters */
631 int open_count
; /**< Outstanding files open */
632 atomic_t ioctl_count
; /**< Outstanding IOCTLs pending */
633 atomic_t vma_count
; /**< Outstanding vma areas open */
634 int buf_use
; /**< Buffers in use -- cannot alloc */
635 atomic_t buf_alloc
; /**< Buffer allocation in progress */
638 /** \name Performance counters */
640 unsigned long counters
;
641 drm_stat_type_t types
[15];
645 /** \name Authentication */
647 drm_file_t
*file_first
; /**< file list head */
648 drm_file_t
*file_last
; /**< file list tail */
649 drm_magic_head_t magiclist
[DRM_HASH_SIZE
]; /**< magic hash table */
652 /** \name Memory management */
654 drm_map_list_t
*maplist
; /**< Linked list of regions */
655 int map_count
; /**< Number of mappable regions */
657 /** \name Context handle management */
659 drm_ctx_list_t
*ctxlist
; /**< Linked list of context handles */
660 int ctx_count
; /**< Number of context handles */
661 struct semaphore ctxlist_sem
; /**< For ctxlist */
663 drm_map_t
**context_sareas
; /**< per-context SAREA's */
666 drm_vma_entry_t
*vmalist
; /**< List of vmas (for debugging) */
667 drm_lock_data_t lock
; /**< Information on hardware lock */
670 /** \name DMA queues (contexts) */
672 int queue_count
; /**< Number of active DMA queues */
673 int queue_reserved
; /**< Number of reserved DMA queues */
674 int queue_slots
; /**< Actual length of queuelist */
675 drm_queue_t
**queuelist
; /**< Vector of pointers to DMA queues */
676 drm_device_dma_t
*dma
; /**< Optional pointer for DMA support */
679 /** \name Context support */
681 int irq
; /**< Interrupt used by board */
682 int irq_enabled
; /**< True if irq handler is enabled */
683 __volatile__
long context_flag
; /**< Context swapping flag */
684 __volatile__
long interrupt_flag
; /**< Interruption handler flag */
685 __volatile__
long dma_flag
; /**< DMA dispatch flag */
686 struct timer_list timer
; /**< Timer for delaying ctx switch */
687 wait_queue_head_t context_wait
; /**< Processes waiting on ctx switch */
688 int last_checked
; /**< Last context checked for DMA */
689 int last_context
; /**< Last current context */
690 unsigned long last_switch
; /**< jiffies at last context switch */
693 struct work_struct work
;
694 /** \name VBLANK IRQ support */
697 wait_queue_head_t vbl_queue
; /**< VBLANK wait queue */
698 atomic_t vbl_received
;
700 drm_vbl_sig_t vbl_sigs
; /**< signal list to send on VBLANK */
701 unsigned int vbl_pending
;
707 struct fasync_struct
*buf_async
;/**< Processes waiting for SIGIO */
708 wait_queue_head_t buf_readers
; /**< Processes waiting to read */
709 wait_queue_head_t buf_writers
; /**< Processes waiting to ctx switch */
711 drm_agp_head_t
*agp
; /**< AGP data */
713 struct pci_dev
*pdev
; /**< PCI device structure */
714 int pci_domain
; /**< PCI bus domain number */
715 int pci_bus
; /**< PCI bus number */
716 int pci_slot
; /**< PCI slot number */
717 int pci_func
; /**< PCI function number */
719 struct pci_controller
*hose
;
721 drm_sg_mem_t
*sg
; /**< Scatter gather memory */
722 unsigned long *ctx_bitmap
; /**< context bitmap */
723 void *dev_private
; /**< device private data */
724 drm_sigdata_t sigdata
; /**< For block_all_signals */
727 struct drm_driver
*driver
;
728 drm_local_map_t
*agp_buffer_map
;
729 unsigned int agp_buffer_token
;
730 drm_head_t primary
; /**< primary screen head */
733 static __inline__
int drm_core_check_feature(struct drm_device
*dev
,
736 return ((dev
->driver
->driver_features
& feature
) ? 1 : 0);
740 static inline int drm_core_has_AGP(struct drm_device
*dev
)
742 return drm_core_check_feature(dev
, DRIVER_USE_AGP
);
745 #define drm_core_has_AGP(dev) (0)
749 static inline int drm_core_has_MTRR(struct drm_device
*dev
)
751 return drm_core_check_feature(dev
, DRIVER_USE_MTRR
);
754 #define DRM_MTRR_WC MTRR_TYPE_WRCOMB
756 static inline int drm_mtrr_add(unsigned long offset
, unsigned long size
,
759 return mtrr_add(offset
, size
, flags
, 1);
762 static inline int drm_mtrr_del(int handle
, unsigned long offset
,
763 unsigned long size
, unsigned int flags
)
765 return mtrr_del(handle
, offset
, size
);
769 #define drm_core_has_MTRR(dev) (0)
772 /******************************************************************/
773 /** \name Internal function definitions */
776 /* Misc. support (drm_init.h) */
777 extern int drm_flags
;
778 extern void drm_parse_options(char *s
);
780 /* Driver support (drm_drv.h) */
781 extern int drm_init(struct drm_driver
*driver
);
782 extern void drm_exit(struct drm_driver
*driver
);
783 extern int drm_ioctl(struct inode
*inode
, struct file
*filp
,
784 unsigned int cmd
, unsigned long arg
);
785 extern long drm_compat_ioctl(struct file
*filp
,
786 unsigned int cmd
, unsigned long arg
);
787 extern int drm_lastclose(drm_device_t
*dev
);
789 /* Device support (drm_fops.h) */
790 extern int drm_open(struct inode
*inode
, struct file
*filp
);
791 extern int drm_stub_open(struct inode
*inode
, struct file
*filp
);
792 extern int drm_fasync(int fd
, struct file
*filp
, int on
);
793 extern int drm_release(struct inode
*inode
, struct file
*filp
);
795 /* Mapping support (drm_vm.h) */
796 extern int drm_mmap(struct file
*filp
, struct vm_area_struct
*vma
);
797 extern unsigned int drm_poll(struct file
*filp
, struct poll_table_struct
*wait
);
799 /* Memory management support (drm_memory.h) */
800 #include "drm_memory.h"
801 extern void drm_mem_init(void);
802 extern int drm_mem_info(char *buf
, char **start
, off_t offset
,
803 int request
, int *eof
, void *data
);
804 extern void *drm_realloc(void *oldpt
, size_t oldsize
, size_t size
, int area
);
805 extern unsigned long drm_alloc_pages(int order
, int area
);
806 extern void drm_free_pages(unsigned long address
, int order
, int area
);
807 extern void *drm_ioremap(unsigned long offset
, unsigned long size
,
809 extern void *drm_ioremap_nocache(unsigned long offset
, unsigned long size
,
811 extern void drm_ioremapfree(void *pt
, unsigned long size
, drm_device_t
* dev
);
813 extern DRM_AGP_MEM
*drm_alloc_agp(drm_device_t
* dev
, int pages
, u32 type
);
814 extern int drm_free_agp(DRM_AGP_MEM
* handle
, int pages
);
815 extern int drm_bind_agp(DRM_AGP_MEM
* handle
, unsigned int start
);
816 extern int drm_unbind_agp(DRM_AGP_MEM
* handle
);
818 /* Misc. IOCTL support (drm_ioctl.h) */
819 extern int drm_irq_by_busid(struct inode
*inode
, struct file
*filp
,
820 unsigned int cmd
, unsigned long arg
);
821 extern int drm_getunique(struct inode
*inode
, struct file
*filp
,
822 unsigned int cmd
, unsigned long arg
);
823 extern int drm_setunique(struct inode
*inode
, struct file
*filp
,
824 unsigned int cmd
, unsigned long arg
);
825 extern int drm_getmap(struct inode
*inode
, struct file
*filp
,
826 unsigned int cmd
, unsigned long arg
);
827 extern int drm_getclient(struct inode
*inode
, struct file
*filp
,
828 unsigned int cmd
, unsigned long arg
);
829 extern int drm_getstats(struct inode
*inode
, struct file
*filp
,
830 unsigned int cmd
, unsigned long arg
);
831 extern int drm_setversion(struct inode
*inode
, struct file
*filp
,
832 unsigned int cmd
, unsigned long arg
);
834 /* Context IOCTL support (drm_context.h) */
835 extern int drm_resctx(struct inode
*inode
, struct file
*filp
,
836 unsigned int cmd
, unsigned long arg
);
837 extern int drm_addctx(struct inode
*inode
, struct file
*filp
,
838 unsigned int cmd
, unsigned long arg
);
839 extern int drm_modctx(struct inode
*inode
, struct file
*filp
,
840 unsigned int cmd
, unsigned long arg
);
841 extern int drm_getctx(struct inode
*inode
, struct file
*filp
,
842 unsigned int cmd
, unsigned long arg
);
843 extern int drm_switchctx(struct inode
*inode
, struct file
*filp
,
844 unsigned int cmd
, unsigned long arg
);
845 extern int drm_newctx(struct inode
*inode
, struct file
*filp
,
846 unsigned int cmd
, unsigned long arg
);
847 extern int drm_rmctx(struct inode
*inode
, struct file
*filp
,
848 unsigned int cmd
, unsigned long arg
);
850 extern int drm_ctxbitmap_init(drm_device_t
* dev
);
851 extern void drm_ctxbitmap_cleanup(drm_device_t
* dev
);
852 extern void drm_ctxbitmap_free(drm_device_t
* dev
, int ctx_handle
);
854 extern int drm_setsareactx(struct inode
*inode
, struct file
*filp
,
855 unsigned int cmd
, unsigned long arg
);
856 extern int drm_getsareactx(struct inode
*inode
, struct file
*filp
,
857 unsigned int cmd
, unsigned long arg
);
859 /* Drawable IOCTL support (drm_drawable.h) */
860 extern int drm_adddraw(struct inode
*inode
, struct file
*filp
,
861 unsigned int cmd
, unsigned long arg
);
862 extern int drm_rmdraw(struct inode
*inode
, struct file
*filp
,
863 unsigned int cmd
, unsigned long arg
);
865 /* Authentication IOCTL support (drm_auth.h) */
866 extern int drm_getmagic(struct inode
*inode
, struct file
*filp
,
867 unsigned int cmd
, unsigned long arg
);
868 extern int drm_authmagic(struct inode
*inode
, struct file
*filp
,
869 unsigned int cmd
, unsigned long arg
);
871 /* Placeholder for ioctls past */
872 extern int drm_noop(struct inode
*inode
, struct file
*filp
,
873 unsigned int cmd
, unsigned long arg
);
875 /* Locking IOCTL support (drm_lock.h) */
876 extern int drm_lock(struct inode
*inode
, struct file
*filp
,
877 unsigned int cmd
, unsigned long arg
);
878 extern int drm_unlock(struct inode
*inode
, struct file
*filp
,
879 unsigned int cmd
, unsigned long arg
);
880 extern int drm_lock_take(__volatile__
unsigned int *lock
, unsigned int context
);
881 extern int drm_lock_free(drm_device_t
* dev
,
882 __volatile__
unsigned int *lock
, unsigned int context
);
884 /* Buffer management support (drm_bufs.h) */
885 extern int drm_addbufs_agp(drm_device_t
* dev
, drm_buf_desc_t
* request
);
886 extern int drm_addbufs_pci(drm_device_t
* dev
, drm_buf_desc_t
* request
);
887 extern int drm_addmap(drm_device_t
* dev
, unsigned int offset
,
888 unsigned int size
, drm_map_type_t type
,
889 drm_map_flags_t flags
, drm_local_map_t
** map_ptr
);
890 extern int drm_addmap_ioctl(struct inode
*inode
, struct file
*filp
,
891 unsigned int cmd
, unsigned long arg
);
892 extern int drm_rmmap(drm_device_t
* dev
, drm_local_map_t
* map
);
893 extern int drm_rmmap_locked(drm_device_t
* dev
, drm_local_map_t
* map
);
894 extern int drm_rmmap_ioctl(struct inode
*inode
, struct file
*filp
,
895 unsigned int cmd
, unsigned long arg
);
897 extern int drm_order(unsigned long size
);
898 extern int drm_addbufs(struct inode
*inode
, struct file
*filp
,
899 unsigned int cmd
, unsigned long arg
);
900 extern int drm_infobufs(struct inode
*inode
, struct file
*filp
,
901 unsigned int cmd
, unsigned long arg
);
902 extern int drm_markbufs(struct inode
*inode
, struct file
*filp
,
903 unsigned int cmd
, unsigned long arg
);
904 extern int drm_freebufs(struct inode
*inode
, struct file
*filp
,
905 unsigned int cmd
, unsigned long arg
);
906 extern int drm_mapbufs(struct inode
*inode
, struct file
*filp
,
907 unsigned int cmd
, unsigned long arg
);
908 extern unsigned long drm_get_resource_start(drm_device_t
* dev
,
909 unsigned int resource
);
910 extern unsigned long drm_get_resource_len(drm_device_t
* dev
,
911 unsigned int resource
);
913 /* DMA support (drm_dma.h) */
914 extern int drm_dma_setup(drm_device_t
* dev
);
915 extern void drm_dma_takedown(drm_device_t
* dev
);
916 extern void drm_free_buffer(drm_device_t
* dev
, drm_buf_t
* buf
);
917 extern void drm_core_reclaim_buffers(drm_device_t
* dev
, struct file
*filp
);
919 /* IRQ support (drm_irq.h) */
920 extern int drm_control(struct inode
*inode
, struct file
*filp
,
921 unsigned int cmd
, unsigned long arg
);
922 extern int drm_irq_uninstall(drm_device_t
* dev
);
923 extern irqreturn_t
drm_irq_handler(DRM_IRQ_ARGS
);
924 extern void drm_driver_irq_preinstall(drm_device_t
* dev
);
925 extern void drm_driver_irq_postinstall(drm_device_t
* dev
);
926 extern void drm_driver_irq_uninstall(drm_device_t
* dev
);
928 extern int drm_wait_vblank(struct inode
*inode
, struct file
*filp
,
929 unsigned int cmd
, unsigned long arg
);
930 extern int drm_vblank_wait(drm_device_t
* dev
, unsigned int *vbl_seq
);
931 extern void drm_vbl_send_signals(drm_device_t
* dev
);
933 /* AGP/GART support (drm_agpsupport.h) */
934 extern drm_agp_head_t
*drm_agp_init(drm_device_t
* dev
);
935 extern int drm_agp_acquire(drm_device_t
* dev
);
936 extern int drm_agp_acquire_ioctl(struct inode
*inode
, struct file
*filp
,
937 unsigned int cmd
, unsigned long arg
);
938 extern int drm_agp_release(drm_device_t
* dev
);
939 extern int drm_agp_release_ioctl(struct inode
*inode
, struct file
*filp
,
940 unsigned int cmd
, unsigned long arg
);
941 extern int drm_agp_enable(drm_device_t
* dev
, drm_agp_mode_t mode
);
942 extern int drm_agp_enable_ioctl(struct inode
*inode
, struct file
*filp
,
943 unsigned int cmd
, unsigned long arg
);
944 extern int drm_agp_info(drm_device_t
* dev
, drm_agp_info_t
* info
);
945 extern int drm_agp_info_ioctl(struct inode
*inode
, struct file
*filp
,
946 unsigned int cmd
, unsigned long arg
);
947 extern int drm_agp_alloc(drm_device_t
*dev
, drm_agp_buffer_t
*request
);
948 extern int drm_agp_alloc_ioctl(struct inode
*inode
, struct file
*filp
,
949 unsigned int cmd
, unsigned long arg
);
950 extern int drm_agp_free(drm_device_t
*dev
, drm_agp_buffer_t
*request
);
951 extern int drm_agp_free_ioctl(struct inode
*inode
, struct file
*filp
,
952 unsigned int cmd
, unsigned long arg
);
953 extern int drm_agp_unbind(drm_device_t
*dev
, drm_agp_binding_t
*request
);
954 extern int drm_agp_unbind_ioctl(struct inode
*inode
, struct file
*filp
,
955 unsigned int cmd
, unsigned long arg
);
956 extern int drm_agp_bind(drm_device_t
*dev
, drm_agp_binding_t
*request
);
957 extern int drm_agp_bind_ioctl(struct inode
*inode
, struct file
*filp
,
958 unsigned int cmd
, unsigned long arg
);
959 extern DRM_AGP_MEM
*drm_agp_allocate_memory(struct agp_bridge_data
*bridge
,
960 size_t pages
, u32 type
);
961 extern int drm_agp_free_memory(DRM_AGP_MEM
* handle
);
962 extern int drm_agp_bind_memory(DRM_AGP_MEM
* handle
, off_t start
);
963 extern int drm_agp_unbind_memory(DRM_AGP_MEM
* handle
);
965 /* Stub support (drm_stub.h) */
966 extern int drm_get_dev(struct pci_dev
*pdev
, const struct pci_device_id
*ent
,
967 struct drm_driver
*driver
);
968 extern int drm_put_dev(drm_device_t
* dev
);
969 extern int drm_put_head(drm_head_t
* head
);
970 extern unsigned int drm_debug
;
971 extern unsigned int drm_cards_limit
;
972 extern drm_head_t
**drm_heads
;
973 extern struct drm_sysfs_class
*drm_class
;
974 extern struct proc_dir_entry
*drm_proc_root
;
976 /* Proc support (drm_proc.h) */
977 extern int drm_proc_init(drm_device_t
* dev
,
979 struct proc_dir_entry
*root
,
980 struct proc_dir_entry
**dev_root
);
981 extern int drm_proc_cleanup(int minor
,
982 struct proc_dir_entry
*root
,
983 struct proc_dir_entry
*dev_root
);
985 /* Scatter Gather Support (drm_scatter.h) */
986 extern void drm_sg_cleanup(drm_sg_mem_t
* entry
);
987 extern int drm_sg_alloc(struct inode
*inode
, struct file
*filp
,
988 unsigned int cmd
, unsigned long arg
);
989 extern int drm_sg_free(struct inode
*inode
, struct file
*filp
,
990 unsigned int cmd
, unsigned long arg
);
992 /* ATI PCIGART support (ati_pcigart.h) */
993 extern int drm_ati_pcigart_init(drm_device_t
* dev
,
994 drm_ati_pcigart_info
* gart_info
);
995 extern int drm_ati_pcigart_cleanup(drm_device_t
* dev
,
996 drm_ati_pcigart_info
* gart_info
);
998 extern drm_dma_handle_t
*drm_pci_alloc(drm_device_t
* dev
, size_t size
,
999 size_t align
, dma_addr_t maxaddr
);
1000 extern void __drm_pci_free(drm_device_t
* dev
, drm_dma_handle_t
* dmah
);
1001 extern void drm_pci_free(drm_device_t
* dev
, drm_dma_handle_t
* dmah
);
1003 /* sysfs support (drm_sysfs.c) */
1004 struct drm_sysfs_class
;
1005 extern struct drm_sysfs_class
*drm_sysfs_create(struct module
*owner
,
1007 extern void drm_sysfs_destroy(struct drm_sysfs_class
*cs
);
1008 extern struct class_device
*drm_sysfs_device_add(struct drm_sysfs_class
*cs
,
1010 extern void drm_sysfs_device_remove(struct class_device
*class_dev
);
1012 /* Inline replacements for DRM_IOREMAP macros */
1013 static __inline__
void drm_core_ioremap(struct drm_map
*map
,
1014 struct drm_device
*dev
)
1016 map
->handle
= drm_ioremap(map
->offset
, map
->size
, dev
);
1019 static __inline__
void drm_core_ioremap_nocache(struct drm_map
*map
,
1020 struct drm_device
*dev
)
1022 map
->handle
= drm_ioremap_nocache(map
->offset
, map
->size
, dev
);
1025 static __inline__
void drm_core_ioremapfree(struct drm_map
*map
,
1026 struct drm_device
*dev
)
1028 if (map
->handle
&& map
->size
)
1029 drm_ioremapfree(map
->handle
, map
->size
, dev
);
1032 static __inline__
struct drm_map
*drm_core_findmap(struct drm_device
*dev
,
1035 drm_map_list_t
*_entry
;
1036 list_for_each_entry(_entry
, &dev
->maplist
->head
, head
)
1037 if (_entry
->user_token
== token
)
1042 static __inline__
int drm_device_is_agp(drm_device_t
* dev
)
1044 if (dev
->driver
->device_is_agp
!= NULL
) {
1045 int err
= (*dev
->driver
->device_is_agp
) (dev
);
1052 return pci_find_capability(dev
->pdev
, PCI_CAP_ID_AGP
);
1055 static __inline__
int drm_device_is_pcie(drm_device_t
* dev
)
1057 return pci_find_capability(dev
->pdev
, PCI_CAP_ID_EXP
);
1060 static __inline__
void drm_core_dropmap(struct drm_map
*map
)
1064 #ifndef DEBUG_MEMORY
1065 /** Wrapper around kmalloc() */
1066 static __inline__
void *drm_alloc(size_t size
, int area
)
1068 return kmalloc(size
, GFP_KERNEL
);
1071 /** Wrapper around kfree() */
1072 static __inline__
void drm_free(void *pt
, size_t size
, int area
)
1077 /** Wrapper around kcalloc() */
1078 static __inline__
void *drm_calloc(size_t nmemb
, size_t size
, int area
)
1080 return kcalloc(nmemb
, size
, GFP_KERNEL
);
1083 extern void *drm_alloc(size_t size
, int area
);
1084 extern void drm_free(void *pt
, size_t size
, int area
);
1085 extern void *drm_calloc(size_t nmemb
, size_t size
, int area
);
1090 extern unsigned long drm_core_get_map_ofs(drm_map_t
* map
);
1091 extern unsigned long drm_core_get_reg_ofs(struct drm_device
*dev
);
1093 #ifndef pci_pretty_name
1094 #define pci_pretty_name(dev) ""
1097 #endif /* __KERNEL__ */