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)
145 /***********************************************************************/
146 /** \name Backward compatibility section */
149 #ifndef MODULE_LICENSE
150 #define MODULE_LICENSE(x)
153 #ifndef preempt_disable
154 #define preempt_disable()
155 #define preempt_enable()
158 #ifndef pte_offset_map
159 #define pte_offset_map pte_offset
160 #define pte_unmap(pte)
163 #define DRM_RPR_ARG(vma) vma,
165 #define VM_OFFSET(vma) ((vma)->vm_pgoff << PAGE_SHIFT)
170 /***********************************************************************/
171 /** \name Macros to make printk easier */
177 * \param fmt printf() like format string.
178 * \param arg arguments
180 #define DRM_ERROR(fmt, arg...) \
181 printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* " fmt , __FUNCTION__ , ##arg)
184 * Memory error output.
186 * \param area memory area where the error occurred.
187 * \param fmt printf() like format string.
188 * \param arg arguments
190 #define DRM_MEM_ERROR(area, fmt, arg...) \
191 printk(KERN_ERR "[" DRM_NAME ":%s:%s] *ERROR* " fmt , __FUNCTION__, \
192 drm_mem_stats[area].name , ##arg)
194 #define DRM_INFO(fmt, arg...) printk(KERN_INFO "[" DRM_NAME "] " fmt , ##arg)
199 * \param fmt printf() like format string.
200 * \param arg arguments
203 #define DRM_DEBUG(fmt, arg...) \
207 "[" DRM_NAME ":%s] " fmt , \
208 __FUNCTION__ , ##arg); \
211 #define DRM_DEBUG(fmt, arg...) do { } while (0)
214 #define DRM_PROC_LIMIT (PAGE_SIZE-80)
216 #define DRM_PROC_PRINT(fmt, arg...) \
217 len += sprintf(&buf[len], fmt , ##arg); \
218 if (len > DRM_PROC_LIMIT) { *eof = 1; return len - offset; }
220 #define DRM_PROC_PRINT_RET(ret, fmt, arg...) \
221 len += sprintf(&buf[len], fmt , ##arg); \
222 if (len > DRM_PROC_LIMIT) { ret; *eof = 1; return len - offset; }
227 /***********************************************************************/
228 /** \name Internal types and structures */
231 #define DRM_ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
232 #define DRM_MIN(a,b) ((a)<(b)?(a):(b))
233 #define DRM_MAX(a,b) ((a)>(b)?(a):(b))
235 #define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
236 #define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
237 #define DRM_WAITCOUNT(dev,idx) DRM_BUFCOUNT(&dev->queuelist[idx]->waitlist)
239 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
241 * Get the private SAREA mapping.
243 * \param _dev DRM device.
244 * \param _ctx context number.
245 * \param _map output mapping.
247 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
248 (_map) = (_dev)->context_sareas[_ctx]; \
252 * Test that the hardware lock is held by the caller, returning otherwise.
254 * \param dev DRM device.
255 * \param filp file pointer of the caller.
257 #define LOCK_TEST_WITH_RETURN( dev, filp ) \
259 if ( !_DRM_LOCK_IS_HELD( dev->lock.hw_lock->lock ) || \
260 dev->lock.filp != filp ) { \
261 DRM_ERROR( "%s called without lock held\n", \
268 * Copy and IOCTL return string to user space
270 #define DRM_COPY( name, value ) \
271 len = strlen( value ); \
272 if ( len > name##_len ) len = name##_len; \
273 name##_len = strlen( value ); \
274 if ( len && name ) { \
275 if ( copy_to_user( name, value, len ) ) \
280 * Ioctl function type.
282 * \param inode device inode.
283 * \param filp file pointer.
284 * \param cmd command.
285 * \param arg argument.
287 typedef int drm_ioctl_t( struct inode
*inode
, struct file
*filp
,
288 unsigned int cmd
, unsigned long arg
);
290 typedef int drm_ioctl_compat_t(struct file
*filp
, unsigned int cmd
,
293 typedef struct drm_ioctl_desc
{
299 typedef struct drm_devstate
{
300 pid_t owner
; /**< X server pid holding x_lock */
303 typedef struct drm_magic_entry
{
305 struct drm_file
*priv
;
306 struct drm_magic_entry
*next
;
309 typedef struct drm_magic_head
{
310 struct drm_magic_entry
*head
;
311 struct drm_magic_entry
*tail
;
314 typedef struct drm_vma_entry
{
315 struct vm_area_struct
*vma
;
316 struct drm_vma_entry
*next
;
323 typedef struct drm_buf
{
324 int idx
; /**< Index into master buflist */
325 int total
; /**< Buffer size */
326 int order
; /**< log-base-2(total) */
327 int used
; /**< Amount of buffer in use (for DMA) */
328 unsigned long offset
; /**< Byte offset (used internally) */
329 void *address
; /**< Address of buffer */
330 unsigned long bus_address
; /**< Bus address of buffer */
331 struct drm_buf
*next
; /**< Kernel-only: used for free list */
332 __volatile__
int waiting
; /**< On kernel DMA queue */
333 __volatile__
int pending
; /**< On hardware DMA queue */
334 wait_queue_head_t dma_wait
; /**< Processes waiting */
335 struct file
*filp
; /**< Pointer to holding file descr */
336 int context
; /**< Kernel queue for this buffer */
337 int while_locked
;/**< Dispatch this buffer while locked */
345 } list
; /**< Which list we're on */
347 int dev_priv_size
; /**< Size of buffer private storage */
348 void *dev_private
; /**< Per-buffer private storage */
352 /** bufs is one longer than it has to be */
353 typedef struct drm_waitlist
{
354 int count
; /**< Number of possible buffers */
355 drm_buf_t
**bufs
; /**< List of pointers to buffers */
356 drm_buf_t
**rp
; /**< Read pointer */
357 drm_buf_t
**wp
; /**< Write pointer */
358 drm_buf_t
**end
; /**< End pointer */
359 spinlock_t read_lock
;
360 spinlock_t write_lock
;
363 typedef struct drm_freelist
{
364 int initialized
; /**< Freelist in use */
365 atomic_t count
; /**< Number of free buffers */
366 drm_buf_t
*next
; /**< End pointer */
368 wait_queue_head_t waiting
; /**< Processes waiting on free bufs */
369 int low_mark
; /**< Low water mark */
370 int high_mark
; /**< High water mark */
371 atomic_t wfh
; /**< If waiting for high mark */
376 * Buffer entry. There is one of this for each buffer size order.
378 typedef struct drm_buf_entry
{
379 int buf_size
; /**< size */
380 int buf_count
; /**< number of buffers */
381 drm_buf_t
*buflist
; /**< buffer list */
384 unsigned long *seglist
;
386 drm_freelist_t freelist
;
389 /** File private data */
390 typedef struct drm_file
{
396 unsigned long ioctl_count
;
397 struct drm_file
*next
;
398 struct drm_file
*prev
;
399 struct drm_head
*head
;
400 int remove_auth_on_close
;
401 unsigned long lock_count
;
406 typedef struct drm_queue
{
407 atomic_t use_count
; /**< Outstanding uses (+1) */
408 atomic_t finalization
; /**< Finalization in progress */
409 atomic_t block_count
; /**< Count of processes waiting */
410 atomic_t block_read
; /**< Queue blocked for reads */
411 wait_queue_head_t read_queue
; /**< Processes waiting on block_read */
412 atomic_t block_write
; /**< Queue blocked for writes */
413 wait_queue_head_t write_queue
; /**< Processes waiting on block_write */
415 atomic_t total_queued
; /**< Total queued statistic */
416 atomic_t total_flushed
;/**< Total flushes statistic */
417 atomic_t total_locks
; /**< Total locks statistics */
419 drm_ctx_flags_t flags
; /**< Context preserving and 2D-only */
420 drm_waitlist_t waitlist
; /**< Pending buffers */
421 wait_queue_head_t flush_queue
; /**< Processes waiting until flush */
427 typedef struct drm_lock_data
{
428 drm_hw_lock_t
*hw_lock
; /**< Hardware lock */
429 struct file
*filp
; /**< File descr of lock holder (0=kernel) */
430 wait_queue_head_t lock_queue
; /**< Queue of blocked processes */
431 unsigned long lock_time
; /**< Time of last lock in jiffies */
437 typedef struct drm_device_dma
{
439 drm_buf_entry_t bufs
[DRM_MAX_ORDER
+1]; /**< buffers, grouped by their size order */
440 int buf_count
; /**< total number of buffers */
441 drm_buf_t
**buflist
; /**< Vector of pointers into drm_device_dma::bufs */
443 int page_count
; /**< number of pages */
444 unsigned long *pagelist
; /**< page list */
445 unsigned long byte_count
;
447 _DRM_DMA_USE_AGP
= 0x01,
448 _DRM_DMA_USE_SG
= 0x02,
449 _DRM_DMA_USE_FB
= 0x04
455 * AGP memory entry. Stored as a doubly linked list.
457 typedef struct drm_agp_mem
{
458 unsigned long handle
; /**< handle */
460 unsigned long bound
; /**< address */
462 struct drm_agp_mem
*prev
; /**< previous entry */
463 struct drm_agp_mem
*next
; /**< next entry */
469 * \sa drm_agp_init() and drm_device::agp.
471 typedef struct drm_agp_head
{
472 DRM_AGP_KERN agp_info
; /**< AGP device information */
473 drm_agp_mem_t
*memory
; /**< memory entries */
474 unsigned long mode
; /**< AGP mode */
475 struct agp_bridge_data
*bridge
;
476 int enabled
; /**< whether the AGP bus as been enabled */
477 int acquired
; /**< whether the AGP device has been acquired */
480 int cant_use_aperture
;
481 unsigned long page_mask
;
485 * Scatter-gather memory.
487 typedef struct drm_sg_mem
{
488 unsigned long handle
;
491 struct page
**pagelist
;
495 typedef struct drm_sigdata
{
500 typedef struct drm_dma_handle
{
509 typedef struct drm_map_list
{
510 struct list_head head
; /**< list head */
511 drm_map_t
*map
; /**< mapping */
512 unsigned int user_token
;
515 typedef drm_map_t drm_local_map_t
;
518 * Context handle list
520 typedef struct drm_ctx_list
{
521 struct list_head head
; /**< list head */
522 drm_context_t handle
; /**< context handle */
523 drm_file_t
*tag
; /**< associated fd private data */
527 typedef struct drm_vbl_sig
{
528 struct list_head head
;
529 unsigned int sequence
;
531 struct task_struct
*task
;
535 /* location of GART table */
536 #define DRM_ATI_GART_MAIN 1
537 #define DRM_ATI_GART_FB 2
539 typedef struct ati_pcigart_info
{
540 int gart_table_location
;
544 } drm_ati_pcigart_info
;
547 * DRM driver structure. This structure represent the common code for
548 * a family of cards. There will one drm_device for each card present
554 int (*preinit
)(struct drm_device
*, unsigned long flags
);
555 void (*prerelease
)(struct drm_device
*, struct file
*filp
);
556 void (*pretakedown
)(struct drm_device
*);
557 int (*postcleanup
)(struct drm_device
*);
558 int (*presetup
)(struct drm_device
*);
559 int (*postsetup
)(struct drm_device
*);
560 int (*dma_ioctl
)( DRM_IOCTL_ARGS
);
561 int (*open_helper
)(struct drm_device
*, drm_file_t
*);
562 void (*free_filp_priv
)(struct drm_device
*, drm_file_t
*);
563 void (*release
)(struct drm_device
*, struct file
*filp
);
564 void (*dma_ready
)(struct drm_device
*);
565 int (*dma_quiescent
)(struct drm_device
*);
566 int (*context_ctor
)(struct drm_device
*dev
, int context
);
567 int (*context_dtor
)(struct drm_device
*dev
, int context
);
568 int (*kernel_context_switch
)(struct drm_device
*dev
, int old
, int new);
569 void (*kernel_context_switch_unlock
)(struct drm_device
*dev
, drm_lock_t
*lock
);
570 int (*vblank_wait
)(struct drm_device
*dev
, unsigned int *sequence
);
573 * Called by \c drm_device_is_agp. Typically used to determine if a
574 * card is really attached to AGP or not.
576 * \param dev DRM device handle
579 * One of three values is returned depending on whether or not the
580 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
581 * (return of 1), or may or may not be AGP (return of 2).
583 int (*device_is_agp
) (struct drm_device
* dev
);
585 /* these have to be filled in */
587 int (*postinit
)(struct drm_device
*, unsigned long flags
);
588 irqreturn_t (*irq_handler
)( DRM_IRQ_ARGS
);
589 void (*irq_preinstall
)(struct drm_device
*dev
);
590 void (*irq_postinstall
)(struct drm_device
*dev
);
591 void (*irq_uninstall
)(struct drm_device
*dev
);
592 void (*reclaim_buffers
)(struct drm_device
*dev
, struct file
*filp
);
593 unsigned long (*get_map_ofs
)(drm_map_t
*map
);
594 unsigned long (*get_reg_ofs
)(struct drm_device
*dev
);
595 void (*set_version
)(struct drm_device
*dev
, drm_set_version_t
*sv
);
596 int (*version
)(drm_version_t
*version
);
599 drm_ioctl_desc_t
*ioctls
;
601 struct file_operations fops
;
602 struct pci_driver pci_driver
;
606 * DRM head structure. This structure represent a video head on a card
607 * that may contain multiple heads. Embed one per head of these in the
608 * private drm_device structure.
610 typedef struct drm_head
{
611 int minor
; /**< Minor device number */
612 struct drm_device
*dev
;
613 struct proc_dir_entry
*dev_root
; /**< proc directory entry */
614 dev_t device
; /**< Device number for mknod */
615 struct class_device
*dev_class
;
619 * DRM device structure. This structure represent a complete card that
620 * may contain multiple heads.
622 typedef struct drm_device
{
623 char *unique
; /**< Unique identifier: e.g., busid */
624 int unique_len
; /**< Length of unique field */
625 char *devname
; /**< For /proc/interrupts */
626 int if_version
; /**< Highest interface version set */
628 int blocked
; /**< Blocked due to VC switch? */
632 spinlock_t count_lock
; /**< For inuse, drm_device::open_count, drm_device::buf_use */
633 struct semaphore struct_sem
; /**< For others */
636 /** \name Usage Counters */
638 int open_count
; /**< Outstanding files open */
639 atomic_t ioctl_count
; /**< Outstanding IOCTLs pending */
640 atomic_t vma_count
; /**< Outstanding vma areas open */
641 int buf_use
; /**< Buffers in use -- cannot alloc */
642 atomic_t buf_alloc
; /**< Buffer allocation in progress */
645 /** \name Performance counters */
647 unsigned long counters
;
648 drm_stat_type_t types
[15];
652 /** \name Authentication */
654 drm_file_t
*file_first
; /**< file list head */
655 drm_file_t
*file_last
; /**< file list tail */
656 drm_magic_head_t magiclist
[DRM_HASH_SIZE
]; /**< magic hash table */
659 /** \name Memory management */
661 drm_map_list_t
*maplist
; /**< Linked list of regions */
662 int map_count
; /**< Number of mappable regions */
664 /** \name Context handle management */
666 drm_ctx_list_t
*ctxlist
; /**< Linked list of context handles */
667 int ctx_count
; /**< Number of context handles */
668 struct semaphore ctxlist_sem
; /**< For ctxlist */
670 drm_map_t
**context_sareas
; /**< per-context SAREA's */
673 drm_vma_entry_t
*vmalist
; /**< List of vmas (for debugging) */
674 drm_lock_data_t lock
; /**< Information on hardware lock */
677 /** \name DMA queues (contexts) */
679 int queue_count
; /**< Number of active DMA queues */
680 int queue_reserved
; /**< Number of reserved DMA queues */
681 int queue_slots
; /**< Actual length of queuelist */
682 drm_queue_t
**queuelist
; /**< Vector of pointers to DMA queues */
683 drm_device_dma_t
*dma
; /**< Optional pointer for DMA support */
686 /** \name Context support */
688 int irq
; /**< Interrupt used by board */
689 int irq_enabled
; /**< True if irq handler is enabled */
690 __volatile__
long context_flag
; /**< Context swapping flag */
691 __volatile__
long interrupt_flag
; /**< Interruption handler flag */
692 __volatile__
long dma_flag
; /**< DMA dispatch flag */
693 struct timer_list timer
; /**< Timer for delaying ctx switch */
694 wait_queue_head_t context_wait
; /**< Processes waiting on ctx switch */
695 int last_checked
; /**< Last context checked for DMA */
696 int last_context
; /**< Last current context */
697 unsigned long last_switch
; /**< jiffies at last context switch */
700 struct work_struct work
;
701 /** \name VBLANK IRQ support */
704 wait_queue_head_t vbl_queue
; /**< VBLANK wait queue */
705 atomic_t vbl_received
;
707 drm_vbl_sig_t vbl_sigs
; /**< signal list to send on VBLANK */
708 unsigned int vbl_pending
;
714 char buf
[DRM_BSZ
]; /**< Output buffer */
715 char *buf_rp
; /**< Read pointer */
716 char *buf_wp
; /**< Write pointer */
717 char *buf_end
; /**< End pointer */
718 struct fasync_struct
*buf_async
;/**< Processes waiting for SIGIO */
719 wait_queue_head_t buf_readers
; /**< Processes waiting to read */
720 wait_queue_head_t buf_writers
; /**< Processes waiting to ctx switch */
722 drm_agp_head_t
*agp
; /**< AGP data */
724 struct pci_dev
*pdev
; /**< PCI device structure */
725 int pci_domain
; /**< PCI bus domain number */
726 int pci_bus
; /**< PCI bus number */
727 int pci_slot
; /**< PCI slot number */
728 int pci_func
; /**< PCI function number */
730 struct pci_controller
*hose
;
732 drm_sg_mem_t
*sg
; /**< Scatter gather memory */
733 unsigned long *ctx_bitmap
; /**< context bitmap */
734 void *dev_private
; /**< device private data */
735 drm_sigdata_t sigdata
; /**< For block_all_signals */
738 struct drm_driver
*driver
;
739 drm_local_map_t
*agp_buffer_map
;
740 unsigned int agp_buffer_token
;
741 drm_head_t primary
; /**< primary screen head */
744 static __inline__
int drm_core_check_feature(struct drm_device
*dev
, int feature
)
746 return ((dev
->driver
->driver_features
& feature
) ? 1 : 0);
750 static inline int drm_core_has_AGP(struct drm_device
*dev
)
752 return drm_core_check_feature(dev
, DRIVER_USE_AGP
);
755 #define drm_core_has_AGP(dev) (0)
759 static inline int drm_core_has_MTRR(struct drm_device
*dev
)
761 return drm_core_check_feature(dev
, DRIVER_USE_MTRR
);
764 #define drm_core_has_MTRR(dev) (0)
767 /******************************************************************/
768 /** \name Internal function definitions */
771 /* Misc. support (drm_init.h) */
772 extern int drm_flags
;
773 extern void drm_parse_options( char *s
);
774 extern int drm_cpu_valid( void );
776 /* Driver support (drm_drv.h) */
777 extern int drm_init(struct drm_driver
*driver
);
778 extern void drm_exit(struct drm_driver
*driver
);
779 extern int drm_ioctl(struct inode
*inode
, struct file
*filp
,
780 unsigned int cmd
, unsigned long arg
);
781 extern long drm_compat_ioctl(struct file
*filp
,
782 unsigned int cmd
, unsigned long arg
);
783 extern int drm_takedown(drm_device_t
* dev
);
785 /* Device support (drm_fops.h) */
786 extern int drm_open(struct inode
*inode
, struct file
*filp
);
787 extern int drm_stub_open(struct inode
*inode
, struct file
*filp
);
788 extern int drm_flush(struct file
*filp
);
789 extern int drm_fasync(int fd
, struct file
*filp
, int on
);
790 extern int drm_release(struct inode
*inode
, struct file
*filp
);
792 /* Mapping support (drm_vm.h) */
793 extern int drm_mmap(struct file
*filp
, struct vm_area_struct
*vma
);
794 extern unsigned int drm_poll(struct file
*filp
, struct poll_table_struct
*wait
);
796 /* Memory management support (drm_memory.h) */
797 #include "drm_memory.h"
798 extern void drm_mem_init(void);
799 extern int drm_mem_info(char *buf
, char **start
, off_t offset
,
800 int request
, int *eof
, void *data
);
801 extern void *drm_realloc(void *oldpt
, size_t oldsize
, size_t size
,
803 extern unsigned long drm_alloc_pages(int order
, int area
);
804 extern void drm_free_pages(unsigned long address
, int order
,
806 extern void *drm_ioremap(unsigned long offset
, unsigned long size
, drm_device_t
*dev
);
807 extern void *drm_ioremap_nocache(unsigned long offset
, unsigned long size
,
809 extern void drm_ioremapfree(void *pt
, unsigned long size
, drm_device_t
*dev
);
811 extern DRM_AGP_MEM
*drm_alloc_agp(drm_device_t
*dev
, int pages
, u32 type
);
812 extern int drm_free_agp(DRM_AGP_MEM
*handle
, int pages
);
813 extern int drm_bind_agp(DRM_AGP_MEM
*handle
, unsigned int start
);
814 extern int drm_unbind_agp(DRM_AGP_MEM
*handle
);
816 /* Misc. IOCTL support (drm_ioctl.h) */
817 extern int drm_irq_by_busid(struct inode
*inode
, struct file
*filp
,
818 unsigned int cmd
, unsigned long arg
);
819 extern int drm_getunique(struct inode
*inode
, struct file
*filp
,
820 unsigned int cmd
, unsigned long arg
);
821 extern int drm_setunique(struct inode
*inode
, struct file
*filp
,
822 unsigned int cmd
, unsigned long arg
);
823 extern int drm_getmap(struct inode
*inode
, struct file
*filp
,
824 unsigned int cmd
, unsigned long arg
);
825 extern int drm_getclient(struct inode
*inode
, struct file
*filp
,
826 unsigned int cmd
, unsigned long arg
);
827 extern int drm_getstats(struct inode
*inode
, struct file
*filp
,
828 unsigned int cmd
, unsigned long arg
);
829 extern int drm_setversion(struct inode
*inode
, struct file
*filp
,
830 unsigned int cmd
, unsigned long arg
);
832 /* Context IOCTL support (drm_context.h) */
833 extern int drm_resctx( struct inode
*inode
, struct file
*filp
,
834 unsigned int cmd
, unsigned long arg
);
835 extern int drm_addctx( struct inode
*inode
, struct file
*filp
,
836 unsigned int cmd
, unsigned long arg
);
837 extern int drm_modctx( struct inode
*inode
, struct file
*filp
,
838 unsigned int cmd
, unsigned long arg
);
839 extern int drm_getctx( struct inode
*inode
, struct file
*filp
,
840 unsigned int cmd
, unsigned long arg
);
841 extern int drm_switchctx( struct inode
*inode
, struct file
*filp
,
842 unsigned int cmd
, unsigned long arg
);
843 extern int drm_newctx( struct inode
*inode
, struct file
*filp
,
844 unsigned int cmd
, unsigned long arg
);
845 extern int drm_rmctx( struct inode
*inode
, struct file
*filp
,
846 unsigned int cmd
, unsigned long arg
);
848 extern int drm_ctxbitmap_init( drm_device_t
*dev
);
849 extern void drm_ctxbitmap_cleanup( drm_device_t
*dev
);
850 extern void drm_ctxbitmap_free( drm_device_t
*dev
, int ctx_handle
);
852 extern int drm_setsareactx( struct inode
*inode
, struct file
*filp
,
853 unsigned int cmd
, unsigned long arg
);
854 extern int drm_getsareactx( struct inode
*inode
, struct file
*filp
,
855 unsigned int cmd
, unsigned long arg
);
857 /* Drawable IOCTL support (drm_drawable.h) */
858 extern int drm_adddraw(struct inode
*inode
, struct file
*filp
,
859 unsigned int cmd
, unsigned long arg
);
860 extern int drm_rmdraw(struct inode
*inode
, struct file
*filp
,
861 unsigned int cmd
, unsigned long arg
);
864 /* Authentication IOCTL support (drm_auth.h) */
865 extern int drm_getmagic(struct inode
*inode
, struct file
*filp
,
866 unsigned int cmd
, unsigned long arg
);
867 extern int drm_authmagic(struct inode
*inode
, struct file
*filp
,
868 unsigned int cmd
, unsigned long arg
);
870 /* Placeholder for ioctls past */
871 extern int drm_noop(struct inode
*inode
, struct file
*filp
,
872 unsigned int cmd
, unsigned long arg
);
874 /* Locking IOCTL support (drm_lock.h) */
875 extern int drm_lock(struct inode
*inode
, struct file
*filp
,
876 unsigned int cmd
, unsigned long arg
);
877 extern int drm_unlock(struct inode
*inode
, struct file
*filp
,
878 unsigned int cmd
, unsigned long arg
);
879 extern int drm_lock_take(__volatile__
unsigned int *lock
,
880 unsigned int context
);
881 extern int drm_lock_free(drm_device_t
*dev
,
882 __volatile__
unsigned int *lock
,
883 unsigned int context
);
885 /* Buffer management support (drm_bufs.h) */
886 extern int drm_addbufs_agp(drm_device_t
*dev
, drm_buf_desc_t
*request
);
887 extern int drm_addbufs_pci(drm_device_t
*dev
, drm_buf_desc_t
*request
);
888 extern int drm_addmap(drm_device_t
*dev
, unsigned int offset
,
889 unsigned int size
, drm_map_type_t type
,
890 drm_map_flags_t flags
, drm_local_map_t
**map_ptr
);
891 extern int drm_addmap_ioctl(struct inode
*inode
, struct file
*filp
,
892 unsigned int cmd
, unsigned long arg
);
893 extern int drm_rmmap(drm_device_t
*dev
, drm_local_map_t
*map
);
894 extern int drm_rmmap_locked(drm_device_t
*dev
, drm_local_map_t
*map
);
895 extern int drm_rmmap_ioctl(struct inode
*inode
, struct file
*filp
,
896 unsigned int cmd
, unsigned long arg
);
898 extern int drm_order( unsigned long size
);
899 extern int drm_addbufs( struct inode
*inode
, struct file
*filp
,
900 unsigned int cmd
, unsigned long arg
);
901 extern int drm_infobufs( struct inode
*inode
, struct file
*filp
,
902 unsigned int cmd
, unsigned long arg
);
903 extern int drm_markbufs( struct inode
*inode
, struct file
*filp
,
904 unsigned int cmd
, unsigned long arg
);
905 extern int drm_freebufs( struct inode
*inode
, struct file
*filp
,
906 unsigned int cmd
, unsigned long arg
);
907 extern int drm_mapbufs( struct inode
*inode
, struct file
*filp
,
908 unsigned int cmd
, unsigned long arg
);
909 extern unsigned long drm_get_resource_start(drm_device_t
*dev
,
910 unsigned int resource
);
911 extern unsigned long drm_get_resource_len(drm_device_t
*dev
,
912 unsigned int resource
);
914 /* DMA support (drm_dma.h) */
915 extern int drm_dma_setup(drm_device_t
*dev
);
916 extern void drm_dma_takedown(drm_device_t
*dev
);
917 extern void drm_free_buffer(drm_device_t
*dev
, drm_buf_t
*buf
);
918 extern void drm_core_reclaim_buffers(drm_device_t
*dev
, struct file
*filp
);
920 /* IRQ support (drm_irq.h) */
921 extern int drm_control( struct inode
*inode
, struct file
*filp
,
922 unsigned int cmd
, unsigned long arg
);
923 extern int drm_irq_uninstall( drm_device_t
*dev
);
924 extern irqreturn_t
drm_irq_handler( DRM_IRQ_ARGS
);
925 extern void drm_driver_irq_preinstall( drm_device_t
*dev
);
926 extern void drm_driver_irq_postinstall( drm_device_t
*dev
);
927 extern void drm_driver_irq_uninstall( drm_device_t
*dev
);
929 extern int drm_wait_vblank(struct inode
*inode
, struct file
*filp
,
930 unsigned int cmd
, unsigned long arg
);
931 extern int drm_vblank_wait(drm_device_t
*dev
, unsigned int *vbl_seq
);
932 extern void drm_vbl_send_signals( drm_device_t
*dev
);
934 /* AGP/GART support (drm_agpsupport.h) */
935 extern drm_agp_head_t
*drm_agp_init(drm_device_t
*dev
);
936 extern int drm_agp_acquire(drm_device_t
* dev
);
937 extern int drm_agp_acquire_ioctl(struct inode
*inode
, struct file
*filp
,
938 unsigned int cmd
, unsigned long arg
);
939 extern int drm_agp_release(drm_device_t
*dev
);
940 extern int drm_agp_release_ioctl(struct inode
*inode
, struct file
*filp
,
941 unsigned int cmd
, unsigned long arg
);
942 extern int drm_agp_enable(drm_device_t
*dev
, drm_agp_mode_t mode
);
943 extern int drm_agp_enable_ioctl(struct inode
*inode
, struct file
*filp
,
944 unsigned int cmd
, unsigned long arg
);
945 extern int drm_agp_info(drm_device_t
* dev
, drm_agp_info_t
*info
);
946 extern int drm_agp_info_ioctl(struct inode
*inode
, struct file
*filp
,
947 unsigned int cmd
, unsigned long arg
);
948 extern int drm_agp_alloc(struct inode
*inode
, struct file
*filp
,
949 unsigned int cmd
, unsigned long arg
);
950 extern int drm_agp_free(struct inode
*inode
, struct file
*filp
,
951 unsigned int cmd
, unsigned long arg
);
952 extern int drm_agp_unbind(struct inode
*inode
, struct file
*filp
,
953 unsigned int cmd
, unsigned long arg
);
954 extern int drm_agp_bind(struct inode
*inode
, struct file
*filp
,
955 unsigned int cmd
, unsigned long arg
);
956 extern DRM_AGP_MEM
*drm_agp_allocate_memory(struct agp_bridge_data
*bridge
, size_t pages
, u32 type
);
957 extern int drm_agp_free_memory(DRM_AGP_MEM
*handle
);
958 extern int drm_agp_bind_memory(DRM_AGP_MEM
*handle
, off_t start
);
959 extern int drm_agp_unbind_memory(DRM_AGP_MEM
*handle
);
961 /* Stub support (drm_stub.h) */
962 extern int drm_get_dev(struct pci_dev
*pdev
, const struct pci_device_id
*ent
,
963 struct drm_driver
*driver
);
964 extern int drm_put_dev(drm_device_t
* dev
);
965 extern int drm_put_head(drm_head_t
* head
);
966 extern unsigned int drm_debug
;
967 extern unsigned int drm_cards_limit
;
968 extern drm_head_t
**drm_heads
;
969 extern struct drm_sysfs_class
*drm_class
;
970 extern struct proc_dir_entry
*drm_proc_root
;
972 /* Proc support (drm_proc.h) */
973 extern int drm_proc_init(drm_device_t
*dev
,
975 struct proc_dir_entry
*root
,
976 struct proc_dir_entry
**dev_root
);
977 extern int drm_proc_cleanup(int minor
,
978 struct proc_dir_entry
*root
,
979 struct proc_dir_entry
*dev_root
);
981 /* Scatter Gather Support (drm_scatter.h) */
982 extern void drm_sg_cleanup(drm_sg_mem_t
*entry
);
983 extern int drm_sg_alloc(struct inode
*inode
, struct file
*filp
,
984 unsigned int cmd
, unsigned long arg
);
985 extern int drm_sg_free(struct inode
*inode
, struct file
*filp
,
986 unsigned int cmd
, unsigned long arg
);
988 /* ATI PCIGART support (ati_pcigart.h) */
989 extern int drm_ati_pcigart_init(drm_device_t
* dev
, drm_ati_pcigart_info
*gart_info
);
990 extern int drm_ati_pcigart_cleanup(drm_device_t
* dev
, drm_ati_pcigart_info
*gart_info
);
992 extern drm_dma_handle_t
*drm_pci_alloc(drm_device_t
*dev
, size_t size
,
993 size_t align
, dma_addr_t maxaddr
);
994 extern void __drm_pci_free(drm_device_t
*dev
, drm_dma_handle_t
*dmah
);
995 extern void drm_pci_free(drm_device_t
*dev
, drm_dma_handle_t
*dmah
);
997 /* sysfs support (drm_sysfs.c) */
998 struct drm_sysfs_class
;
999 extern struct drm_sysfs_class
*drm_sysfs_create(struct module
*owner
,
1001 extern void drm_sysfs_destroy(struct drm_sysfs_class
*cs
);
1002 extern struct class_device
*drm_sysfs_device_add(struct drm_sysfs_class
*cs
,
1004 struct device
*device
,
1005 const char *fmt
, ...);
1006 extern void drm_sysfs_device_remove(dev_t dev
);
1009 /* Inline replacements for DRM_IOREMAP macros */
1010 static __inline__
void drm_core_ioremap(struct drm_map
*map
, struct drm_device
*dev
)
1012 map
->handle
= drm_ioremap( map
->offset
, map
->size
, dev
);
1015 static __inline__
void drm_core_ioremap_nocache(struct drm_map
*map
, struct drm_device
*dev
)
1017 map
->handle
= drm_ioremap_nocache(map
->offset
, map
->size
, dev
);
1020 static __inline__
void drm_core_ioremapfree(struct drm_map
*map
, struct drm_device
*dev
)
1022 if ( map
->handle
&& map
->size
)
1023 drm_ioremapfree( map
->handle
, map
->size
, dev
);
1026 static __inline__
struct drm_map
*drm_core_findmap(struct drm_device
*dev
, unsigned int token
)
1028 drm_map_list_t
*_entry
;
1029 list_for_each_entry(_entry
, &dev
->maplist
->head
, head
)
1030 if (_entry
->user_token
== token
)
1035 static __inline__
int drm_device_is_agp(drm_device_t
*dev
)
1037 if ( dev
->driver
->device_is_agp
!= NULL
) {
1038 int err
= (*dev
->driver
->device_is_agp
)( dev
);
1045 return pci_find_capability(dev
->pdev
, PCI_CAP_ID_AGP
);
1048 static __inline__
int drm_device_is_pcie(drm_device_t
*dev
)
1050 return pci_find_capability(dev
->pdev
, PCI_CAP_ID_EXP
);
1053 static __inline__
void drm_core_dropmap(struct drm_map
*map
)
1057 #ifndef DEBUG_MEMORY
1058 /** Wrapper around kmalloc() */
1059 static __inline__
void *drm_alloc(size_t size
, int area
)
1061 return kmalloc(size
, GFP_KERNEL
);
1064 /** Wrapper around kfree() */
1065 static __inline__
void drm_free(void *pt
, size_t size
, int area
)
1070 /** Wrapper around kcalloc() */
1071 static __inline__
void *drm_calloc(size_t nmemb
, size_t size
, int area
)
1073 return kcalloc(nmemb
, size
, GFP_KERNEL
);
1076 extern void *drm_alloc(size_t size
, int area
);
1077 extern void drm_free(void *pt
, size_t size
, int area
);
1078 extern void *drm_calloc(size_t nmemb
, size_t size
, int area
);
1083 extern unsigned long drm_core_get_map_ofs(drm_map_t
*map
);
1084 extern unsigned long drm_core_get_reg_ofs(struct drm_device
*dev
);
1086 #endif /* __KERNEL__ */