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/version.h>
57 #include <linux/jiffies.h>
58 #include <linux/smp_lock.h> /* For (un)lock_kernel */
60 #include <linux/cdev.h>
61 #if defined(__alpha__) || defined(__powerpc__)
62 #include <asm/pgtable.h> /* For pte_wrprotect */
66 #include <asm/uaccess.h>
70 #if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
71 #include <linux/types.h>
72 #include <linux/agp_backend.h>
74 #include <linux/workqueue.h>
75 #include <linux/poll.h>
76 #include <asm/pgalloc.h>
79 #define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE)))
80 #define __OS_HAS_MTRR (defined(CONFIG_MTRR))
82 #include "drm_os_linux.h"
84 /***********************************************************************/
85 /** \name DRM template customization defaults */
88 /* driver capabilities and requirements mask */
89 #define DRIVER_USE_AGP 0x1
90 #define DRIVER_REQUIRE_AGP 0x2
91 #define DRIVER_USE_MTRR 0x4
92 #define DRIVER_PCI_DMA 0x8
93 #define DRIVER_SG 0x10
94 #define DRIVER_HAVE_DMA 0x20
95 #define DRIVER_HAVE_IRQ 0x40
96 #define DRIVER_IRQ_SHARED 0x80
97 #define DRIVER_IRQ_VBL 0x100
98 #define DRIVER_DMA_QUEUE 0x200
99 #define DRIVER_FB_DMA 0x400
101 /***********************************************************************/
102 /** \name Begin the DRM... */
105 #define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then
106 also include looping detection. */
108 #define DRM_HASH_SIZE 16 /**< Size of key hash table. Must be power of 2. */
109 #define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */
110 #define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */
111 #define DRM_LOOPING_LIMIT 5000000
112 #define DRM_BSZ 1024 /**< Buffer size for /dev/drm? output */
113 #define DRM_TIME_SLICE (HZ/20) /**< Time slice for GLXContexts */
114 #define DRM_LOCK_SLICE 1 /**< Time slice for lock, in jiffies */
116 #define DRM_FLAG_DEBUG 0x01
118 #define DRM_MEM_DMA 0
119 #define DRM_MEM_SAREA 1
120 #define DRM_MEM_DRIVER 2
121 #define DRM_MEM_MAGIC 3
122 #define DRM_MEM_IOCTLS 4
123 #define DRM_MEM_MAPS 5
124 #define DRM_MEM_VMAS 6
125 #define DRM_MEM_BUFS 7
126 #define DRM_MEM_SEGS 8
127 #define DRM_MEM_PAGES 9
128 #define DRM_MEM_FILES 10
129 #define DRM_MEM_QUEUES 11
130 #define DRM_MEM_CMDS 12
131 #define DRM_MEM_MAPPINGS 13
132 #define DRM_MEM_BUFLISTS 14
133 #define DRM_MEM_AGPLISTS 15
134 #define DRM_MEM_TOTALAGP 16
135 #define DRM_MEM_BOUNDAGP 17
136 #define DRM_MEM_CTXBITMAP 18
137 #define DRM_MEM_STUB 19
138 #define DRM_MEM_SGLISTS 20
139 #define DRM_MEM_CTXLIST 21
141 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
146 /***********************************************************************/
147 /** \name Backward compatibility section */
150 #ifndef MODULE_LICENSE
151 #define MODULE_LICENSE(x)
154 #ifndef preempt_disable
155 #define preempt_disable()
156 #define preempt_enable()
159 #ifndef pte_offset_map
160 #define pte_offset_map pte_offset
161 #define pte_unmap(pte)
164 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,19)
165 static inline struct page
* vmalloc_to_page(void * vmalloc_addr
)
167 unsigned long addr
= (unsigned long) vmalloc_addr
;
168 struct page
*page
= NULL
;
169 pgd_t
*pgd
= pgd_offset_k(addr
);
173 if (!pgd_none(*pgd
)) {
174 pmd
= pmd_offset(pgd
, addr
);
175 if (!pmd_none(*pmd
)) {
177 ptep
= pte_offset_map(pmd
, addr
);
179 if (pte_present(pte
))
180 page
= pte_page(pte
);
189 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
190 #define DRM_RPR_ARG(vma)
192 #define DRM_RPR_ARG(vma) vma,
195 #define VM_OFFSET(vma) ((vma)->vm_pgoff << PAGE_SHIFT)
200 /***********************************************************************/
201 /** \name Macros to make printk easier */
207 * \param fmt printf() like format string.
208 * \param arg arguments
210 #define DRM_ERROR(fmt, arg...) \
211 printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* " fmt , __FUNCTION__ , ##arg)
214 * Memory error output.
216 * \param area memory area where the error occurred.
217 * \param fmt printf() like format string.
218 * \param arg arguments
220 #define DRM_MEM_ERROR(area, fmt, arg...) \
221 printk(KERN_ERR "[" DRM_NAME ":%s:%s] *ERROR* " fmt , __FUNCTION__, \
222 drm_mem_stats[area].name , ##arg)
224 #define DRM_INFO(fmt, arg...) printk(KERN_INFO "[" DRM_NAME "] " fmt , ##arg)
229 * \param fmt printf() like format string.
230 * \param arg arguments
233 #define DRM_DEBUG(fmt, arg...) \
237 "[" DRM_NAME ":%s] " fmt , \
238 __FUNCTION__ , ##arg); \
241 #define DRM_DEBUG(fmt, arg...) do { } while (0)
244 #define DRM_PROC_LIMIT (PAGE_SIZE-80)
246 #define DRM_PROC_PRINT(fmt, arg...) \
247 len += sprintf(&buf[len], fmt , ##arg); \
248 if (len > DRM_PROC_LIMIT) { *eof = 1; return len - offset; }
250 #define DRM_PROC_PRINT_RET(ret, fmt, arg...) \
251 len += sprintf(&buf[len], fmt , ##arg); \
252 if (len > DRM_PROC_LIMIT) { ret; *eof = 1; return len - offset; }
257 /***********************************************************************/
258 /** \name Internal types and structures */
261 #define DRM_ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
262 #define DRM_MIN(a,b) ((a)<(b)?(a):(b))
263 #define DRM_MAX(a,b) ((a)>(b)?(a):(b))
265 #define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
266 #define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
267 #define DRM_WAITCOUNT(dev,idx) DRM_BUFCOUNT(&dev->queuelist[idx]->waitlist)
269 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
271 * Get the private SAREA mapping.
273 * \param _dev DRM device.
274 * \param _ctx context number.
275 * \param _map output mapping.
277 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
278 (_map) = (_dev)->context_sareas[_ctx]; \
282 * Test that the hardware lock is held by the caller, returning otherwise.
284 * \param dev DRM device.
285 * \param filp file pointer of the caller.
287 #define LOCK_TEST_WITH_RETURN( dev, filp ) \
289 if ( !_DRM_LOCK_IS_HELD( dev->lock.hw_lock->lock ) || \
290 dev->lock.filp != filp ) { \
291 DRM_ERROR( "%s called without lock held\n", \
298 * Copy and IOCTL return string to user space
300 #define DRM_COPY( name, value ) \
301 len = strlen( value ); \
302 if ( len > name##_len ) len = name##_len; \
303 name##_len = strlen( value ); \
304 if ( len && name ) { \
305 if ( copy_to_user( name, value, len ) ) \
310 * Ioctl function type.
312 * \param inode device inode.
313 * \param filp file pointer.
314 * \param cmd command.
315 * \param arg argument.
317 typedef int drm_ioctl_t( struct inode
*inode
, struct file
*filp
,
318 unsigned int cmd
, unsigned long arg
);
320 typedef int drm_ioctl_compat_t(struct file
*filp
, unsigned int cmd
,
323 typedef struct drm_ioctl_desc
{
329 typedef struct drm_devstate
{
330 pid_t owner
; /**< X server pid holding x_lock */
333 typedef struct drm_magic_entry
{
335 struct drm_file
*priv
;
336 struct drm_magic_entry
*next
;
339 typedef struct drm_magic_head
{
340 struct drm_magic_entry
*head
;
341 struct drm_magic_entry
*tail
;
344 typedef struct drm_vma_entry
{
345 struct vm_area_struct
*vma
;
346 struct drm_vma_entry
*next
;
353 typedef struct drm_buf
{
354 int idx
; /**< Index into master buflist */
355 int total
; /**< Buffer size */
356 int order
; /**< log-base-2(total) */
357 int used
; /**< Amount of buffer in use (for DMA) */
358 unsigned long offset
; /**< Byte offset (used internally) */
359 void *address
; /**< Address of buffer */
360 unsigned long bus_address
; /**< Bus address of buffer */
361 struct drm_buf
*next
; /**< Kernel-only: used for free list */
362 __volatile__
int waiting
; /**< On kernel DMA queue */
363 __volatile__
int pending
; /**< On hardware DMA queue */
364 wait_queue_head_t dma_wait
; /**< Processes waiting */
365 struct file
*filp
; /**< Pointer to holding file descr */
366 int context
; /**< Kernel queue for this buffer */
367 int while_locked
;/**< Dispatch this buffer while locked */
375 } list
; /**< Which list we're on */
377 int dev_priv_size
; /**< Size of buffer private storage */
378 void *dev_private
; /**< Per-buffer private storage */
382 /** bufs is one longer than it has to be */
383 typedef struct drm_waitlist
{
384 int count
; /**< Number of possible buffers */
385 drm_buf_t
**bufs
; /**< List of pointers to buffers */
386 drm_buf_t
**rp
; /**< Read pointer */
387 drm_buf_t
**wp
; /**< Write pointer */
388 drm_buf_t
**end
; /**< End pointer */
389 spinlock_t read_lock
;
390 spinlock_t write_lock
;
393 typedef struct drm_freelist
{
394 int initialized
; /**< Freelist in use */
395 atomic_t count
; /**< Number of free buffers */
396 drm_buf_t
*next
; /**< End pointer */
398 wait_queue_head_t waiting
; /**< Processes waiting on free bufs */
399 int low_mark
; /**< Low water mark */
400 int high_mark
; /**< High water mark */
401 atomic_t wfh
; /**< If waiting for high mark */
406 * Buffer entry. There is one of this for each buffer size order.
408 typedef struct drm_buf_entry
{
409 int buf_size
; /**< size */
410 int buf_count
; /**< number of buffers */
411 drm_buf_t
*buflist
; /**< buffer list */
414 unsigned long *seglist
;
416 drm_freelist_t freelist
;
419 /** File private data */
420 typedef struct drm_file
{
426 unsigned long ioctl_count
;
427 struct drm_file
*next
;
428 struct drm_file
*prev
;
429 struct drm_head
*head
;
430 int remove_auth_on_close
;
431 unsigned long lock_count
;
436 typedef struct drm_queue
{
437 atomic_t use_count
; /**< Outstanding uses (+1) */
438 atomic_t finalization
; /**< Finalization in progress */
439 atomic_t block_count
; /**< Count of processes waiting */
440 atomic_t block_read
; /**< Queue blocked for reads */
441 wait_queue_head_t read_queue
; /**< Processes waiting on block_read */
442 atomic_t block_write
; /**< Queue blocked for writes */
443 wait_queue_head_t write_queue
; /**< Processes waiting on block_write */
445 atomic_t total_queued
; /**< Total queued statistic */
446 atomic_t total_flushed
;/**< Total flushes statistic */
447 atomic_t total_locks
; /**< Total locks statistics */
449 drm_ctx_flags_t flags
; /**< Context preserving and 2D-only */
450 drm_waitlist_t waitlist
; /**< Pending buffers */
451 wait_queue_head_t flush_queue
; /**< Processes waiting until flush */
457 typedef struct drm_lock_data
{
458 drm_hw_lock_t
*hw_lock
; /**< Hardware lock */
459 struct file
*filp
; /**< File descr of lock holder (0=kernel) */
460 wait_queue_head_t lock_queue
; /**< Queue of blocked processes */
461 unsigned long lock_time
; /**< Time of last lock in jiffies */
467 typedef struct drm_device_dma
{
469 drm_buf_entry_t bufs
[DRM_MAX_ORDER
+1]; /**< buffers, grouped by their size order */
470 int buf_count
; /**< total number of buffers */
471 drm_buf_t
**buflist
; /**< Vector of pointers into drm_device_dma::bufs */
473 int page_count
; /**< number of pages */
474 unsigned long *pagelist
; /**< page list */
475 unsigned long byte_count
;
477 _DRM_DMA_USE_AGP
= 0x01,
478 _DRM_DMA_USE_SG
= 0x02,
479 _DRM_DMA_USE_FB
= 0x04
485 * AGP memory entry. Stored as a doubly linked list.
487 typedef struct drm_agp_mem
{
488 unsigned long handle
; /**< handle */
490 unsigned long bound
; /**< address */
492 struct drm_agp_mem
*prev
; /**< previous entry */
493 struct drm_agp_mem
*next
; /**< next entry */
499 * \sa drm_agp_init() and drm_device::agp.
501 typedef struct drm_agp_head
{
502 DRM_AGP_KERN agp_info
; /**< AGP device information */
503 drm_agp_mem_t
*memory
; /**< memory entries */
504 unsigned long mode
; /**< AGP mode */
505 struct agp_bridge_data
*bridge
;
506 int enabled
; /**< whether the AGP bus as been enabled */
507 int acquired
; /**< whether the AGP device has been acquired */
510 int cant_use_aperture
;
511 unsigned long page_mask
;
515 * Scatter-gather memory.
517 typedef struct drm_sg_mem
{
518 unsigned long handle
;
521 struct page
**pagelist
;
525 typedef struct drm_sigdata
{
530 typedef struct drm_dma_handle
{
539 typedef struct drm_map_list
{
540 struct list_head head
; /**< list head */
541 drm_map_t
*map
; /**< mapping */
544 typedef drm_map_t drm_local_map_t
;
547 * Context handle list
549 typedef struct drm_ctx_list
{
550 struct list_head head
; /**< list head */
551 drm_context_t handle
; /**< context handle */
552 drm_file_t
*tag
; /**< associated fd private data */
556 typedef struct drm_vbl_sig
{
557 struct list_head head
;
558 unsigned int sequence
;
560 struct task_struct
*task
;
565 * DRM driver structure. This structure represent the common code for
566 * a family of cards. There will one drm_device for each card present
572 int (*preinit
)(struct drm_device
*, unsigned long flags
);
573 void (*prerelease
)(struct drm_device
*, struct file
*filp
);
574 void (*pretakedown
)(struct drm_device
*);
575 int (*postcleanup
)(struct drm_device
*);
576 int (*presetup
)(struct drm_device
*);
577 int (*postsetup
)(struct drm_device
*);
578 int (*dma_ioctl
)( DRM_IOCTL_ARGS
);
579 int (*open_helper
)(struct drm_device
*, drm_file_t
*);
580 void (*free_filp_priv
)(struct drm_device
*, drm_file_t
*);
581 void (*release
)(struct drm_device
*, struct file
*filp
);
582 void (*dma_ready
)(struct drm_device
*);
583 int (*dma_quiescent
)(struct drm_device
*);
584 int (*context_ctor
)(struct drm_device
*dev
, int context
);
585 int (*context_dtor
)(struct drm_device
*dev
, int context
);
586 int (*kernel_context_switch
)(struct drm_device
*dev
, int old
, int new);
587 void (*kernel_context_switch_unlock
)(struct drm_device
*dev
, drm_lock_t
*lock
);
588 int (*vblank_wait
)(struct drm_device
*dev
, unsigned int *sequence
);
589 /* these have to be filled in */
590 int (*postinit
)(struct drm_device
*, unsigned long flags
);
591 irqreturn_t (*irq_handler
)( DRM_IRQ_ARGS
);
592 void (*irq_preinstall
)(struct drm_device
*dev
);
593 void (*irq_postinstall
)(struct drm_device
*dev
);
594 void (*irq_uninstall
)(struct drm_device
*dev
);
595 void (*reclaim_buffers
)(struct drm_device
*dev
, struct file
*filp
);
596 unsigned long (*get_map_ofs
)(drm_map_t
*map
);
597 unsigned long (*get_reg_ofs
)(struct drm_device
*dev
);
598 void (*set_version
)(struct drm_device
*dev
, drm_set_version_t
*sv
);
599 int (*version
)(drm_version_t
*version
);
602 drm_ioctl_desc_t
*ioctls
;
604 struct file_operations fops
;
605 struct pci_driver pci_driver
;
609 * DRM head structure. This structure represent a video head on a card
610 * that may contain multiple heads. Embed one per head of these in the
611 * private drm_device structure.
613 typedef struct drm_head
{
614 int minor
; /**< Minor device number */
615 struct drm_device
*dev
;
616 struct proc_dir_entry
*dev_root
; /**< proc directory entry */
617 dev_t device
; /**< Device number for mknod */
618 struct class_device
*dev_class
;
622 * DRM device structure. This structure represent a complete card that
623 * may contain multiple heads.
625 typedef struct drm_device
{
626 char *unique
; /**< Unique identifier: e.g., busid */
627 int unique_len
; /**< Length of unique field */
628 char *devname
; /**< For /proc/interrupts */
629 int if_version
; /**< Highest interface version set */
631 int blocked
; /**< Blocked due to VC switch? */
635 spinlock_t count_lock
; /**< For inuse, drm_device::open_count, drm_device::buf_use */
636 struct semaphore struct_sem
; /**< For others */
639 /** \name Usage Counters */
641 int open_count
; /**< Outstanding files open */
642 atomic_t ioctl_count
; /**< Outstanding IOCTLs pending */
643 atomic_t vma_count
; /**< Outstanding vma areas open */
644 int buf_use
; /**< Buffers in use -- cannot alloc */
645 atomic_t buf_alloc
; /**< Buffer allocation in progress */
648 /** \name Performance counters */
650 unsigned long counters
;
651 drm_stat_type_t types
[15];
655 /** \name Authentication */
657 drm_file_t
*file_first
; /**< file list head */
658 drm_file_t
*file_last
; /**< file list tail */
659 drm_magic_head_t magiclist
[DRM_HASH_SIZE
]; /**< magic hash table */
662 /** \name Memory management */
664 drm_map_list_t
*maplist
; /**< Linked list of regions */
665 int map_count
; /**< Number of mappable regions */
667 /** \name Context handle management */
669 drm_ctx_list_t
*ctxlist
; /**< Linked list of context handles */
670 int ctx_count
; /**< Number of context handles */
671 struct semaphore ctxlist_sem
; /**< For ctxlist */
673 drm_map_t
**context_sareas
; /**< per-context SAREA's */
676 drm_vma_entry_t
*vmalist
; /**< List of vmas (for debugging) */
677 drm_lock_data_t lock
; /**< Information on hardware lock */
680 /** \name DMA queues (contexts) */
682 int queue_count
; /**< Number of active DMA queues */
683 int queue_reserved
; /**< Number of reserved DMA queues */
684 int queue_slots
; /**< Actual length of queuelist */
685 drm_queue_t
**queuelist
; /**< Vector of pointers to DMA queues */
686 drm_device_dma_t
*dma
; /**< Optional pointer for DMA support */
689 /** \name Context support */
691 int irq
; /**< Interrupt used by board */
692 int irq_enabled
; /**< True if irq handler is enabled */
693 __volatile__
long context_flag
; /**< Context swapping flag */
694 __volatile__
long interrupt_flag
; /**< Interruption handler flag */
695 __volatile__
long dma_flag
; /**< DMA dispatch flag */
696 struct timer_list timer
; /**< Timer for delaying ctx switch */
697 wait_queue_head_t context_wait
; /**< Processes waiting on ctx switch */
698 int last_checked
; /**< Last context checked for DMA */
699 int last_context
; /**< Last current context */
700 unsigned long last_switch
; /**< jiffies at last context switch */
703 struct work_struct work
;
704 /** \name VBLANK IRQ support */
707 wait_queue_head_t vbl_queue
; /**< VBLANK wait queue */
708 atomic_t vbl_received
;
710 drm_vbl_sig_t vbl_sigs
; /**< signal list to send on VBLANK */
711 unsigned int vbl_pending
;
717 char buf
[DRM_BSZ
]; /**< Output buffer */
718 char *buf_rp
; /**< Read pointer */
719 char *buf_wp
; /**< Write pointer */
720 char *buf_end
; /**< End pointer */
721 struct fasync_struct
*buf_async
;/**< Processes waiting for SIGIO */
722 wait_queue_head_t buf_readers
; /**< Processes waiting to read */
723 wait_queue_head_t buf_writers
; /**< Processes waiting to ctx switch */
725 drm_agp_head_t
*agp
; /**< AGP data */
727 struct pci_dev
*pdev
; /**< PCI device structure */
728 int pci_domain
; /**< PCI bus domain number */
729 int pci_bus
; /**< PCI bus number */
730 int pci_slot
; /**< PCI slot number */
731 int pci_func
; /**< PCI function number */
733 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,3)
734 struct pci_controler
*hose
;
736 struct pci_controller
*hose
;
739 drm_sg_mem_t
*sg
; /**< Scatter gather memory */
740 unsigned long *ctx_bitmap
; /**< context bitmap */
741 void *dev_private
; /**< device private data */
742 drm_sigdata_t sigdata
; /**< For block_all_signals */
745 struct drm_driver
*driver
;
746 drm_local_map_t
*agp_buffer_map
;
747 drm_head_t primary
; /**< primary screen head */
750 static __inline__
int drm_core_check_feature(struct drm_device
*dev
, int feature
)
752 return ((dev
->driver
->driver_features
& feature
) ? 1 : 0);
756 static inline int drm_core_has_AGP(struct drm_device
*dev
)
758 return drm_core_check_feature(dev
, DRIVER_USE_AGP
);
761 #define drm_core_has_AGP(dev) (0)
765 static inline int drm_core_has_MTRR(struct drm_device
*dev
)
767 return drm_core_check_feature(dev
, DRIVER_USE_MTRR
);
770 #define drm_core_has_MTRR(dev) (0)
773 /******************************************************************/
774 /** \name Internal function definitions */
777 /* Misc. support (drm_init.h) */
778 extern int drm_flags
;
779 extern void drm_parse_options( char *s
);
780 extern int drm_cpu_valid( void );
782 /* Driver support (drm_drv.h) */
783 extern int drm_init(struct drm_driver
*driver
);
784 extern void drm_exit(struct drm_driver
*driver
);
785 extern int drm_ioctl(struct inode
*inode
, struct file
*filp
,
786 unsigned int cmd
, unsigned long arg
);
787 extern long drm_compat_ioctl(struct file
*filp
,
788 unsigned int cmd
, unsigned long arg
);
789 extern int drm_takedown(drm_device_t
* dev
);
791 /* Device support (drm_fops.h) */
792 extern int drm_open(struct inode
*inode
, struct file
*filp
);
793 extern int drm_stub_open(struct inode
*inode
, struct file
*filp
);
794 extern int drm_flush(struct file
*filp
);
795 extern int drm_fasync(int fd
, struct file
*filp
, int on
);
796 extern int drm_release(struct inode
*inode
, struct file
*filp
);
798 /* Mapping support (drm_vm.h) */
799 extern int drm_mmap(struct file
*filp
, struct vm_area_struct
*vma
);
800 extern unsigned int drm_poll(struct file
*filp
, struct poll_table_struct
*wait
);
802 /* Memory management support (drm_memory.h) */
803 #include "drm_memory.h"
804 extern void drm_mem_init(void);
805 extern int drm_mem_info(char *buf
, char **start
, off_t offset
,
806 int request
, int *eof
, void *data
);
807 extern void *drm_realloc(void *oldpt
, size_t oldsize
, size_t size
,
809 extern unsigned long drm_alloc_pages(int order
, int area
);
810 extern void drm_free_pages(unsigned long address
, int order
,
812 extern void *drm_ioremap(unsigned long offset
, unsigned long size
, drm_device_t
*dev
);
813 extern void *drm_ioremap_nocache(unsigned long offset
, unsigned long size
,
815 extern void drm_ioremapfree(void *pt
, unsigned long size
, drm_device_t
*dev
);
817 extern DRM_AGP_MEM
*drm_alloc_agp(struct agp_bridge_data
*bridge
, int pages
, u32 type
);
818 extern int drm_free_agp(DRM_AGP_MEM
*handle
, int pages
);
819 extern int drm_bind_agp(DRM_AGP_MEM
*handle
, unsigned int start
);
820 extern int drm_unbind_agp(DRM_AGP_MEM
*handle
);
822 /* Misc. IOCTL support (drm_ioctl.h) */
823 extern int drm_irq_by_busid(struct inode
*inode
, struct file
*filp
,
824 unsigned int cmd
, unsigned long arg
);
825 extern int drm_getunique(struct inode
*inode
, struct file
*filp
,
826 unsigned int cmd
, unsigned long arg
);
827 extern int drm_setunique(struct inode
*inode
, struct file
*filp
,
828 unsigned int cmd
, unsigned long arg
);
829 extern int drm_getmap(struct inode
*inode
, struct file
*filp
,
830 unsigned int cmd
, unsigned long arg
);
831 extern int drm_getclient(struct inode
*inode
, struct file
*filp
,
832 unsigned int cmd
, unsigned long arg
);
833 extern int drm_getstats(struct inode
*inode
, struct file
*filp
,
834 unsigned int cmd
, unsigned long arg
);
835 extern int drm_setversion(struct inode
*inode
, struct file
*filp
,
836 unsigned int cmd
, unsigned long arg
);
838 /* Context IOCTL support (drm_context.h) */
839 extern int drm_resctx( struct inode
*inode
, struct file
*filp
,
840 unsigned int cmd
, unsigned long arg
);
841 extern int drm_addctx( struct inode
*inode
, struct file
*filp
,
842 unsigned int cmd
, unsigned long arg
);
843 extern int drm_modctx( struct inode
*inode
, struct file
*filp
,
844 unsigned int cmd
, unsigned long arg
);
845 extern int drm_getctx( struct inode
*inode
, struct file
*filp
,
846 unsigned int cmd
, unsigned long arg
);
847 extern int drm_switchctx( struct inode
*inode
, struct file
*filp
,
848 unsigned int cmd
, unsigned long arg
);
849 extern int drm_newctx( struct inode
*inode
, struct file
*filp
,
850 unsigned int cmd
, unsigned long arg
);
851 extern int drm_rmctx( struct inode
*inode
, struct file
*filp
,
852 unsigned int cmd
, unsigned long arg
);
854 extern int drm_ctxbitmap_init( drm_device_t
*dev
);
855 extern void drm_ctxbitmap_cleanup( drm_device_t
*dev
);
856 extern void drm_ctxbitmap_free( drm_device_t
*dev
, int ctx_handle
);
858 extern int drm_setsareactx( struct inode
*inode
, struct file
*filp
,
859 unsigned int cmd
, unsigned long arg
);
860 extern int drm_getsareactx( struct inode
*inode
, struct file
*filp
,
861 unsigned int cmd
, unsigned long arg
);
863 /* Drawable IOCTL support (drm_drawable.h) */
864 extern int drm_adddraw(struct inode
*inode
, struct file
*filp
,
865 unsigned int cmd
, unsigned long arg
);
866 extern int drm_rmdraw(struct inode
*inode
, struct file
*filp
,
867 unsigned int cmd
, unsigned long arg
);
870 /* Authentication IOCTL support (drm_auth.h) */
871 extern int drm_getmagic(struct inode
*inode
, struct file
*filp
,
872 unsigned int cmd
, unsigned long arg
);
873 extern int drm_authmagic(struct inode
*inode
, struct file
*filp
,
874 unsigned int cmd
, unsigned long arg
);
876 /* Placeholder for ioctls past */
877 extern int drm_noop(struct inode
*inode
, struct file
*filp
,
878 unsigned int cmd
, unsigned long arg
);
880 /* Locking IOCTL support (drm_lock.h) */
881 extern int drm_lock(struct inode
*inode
, struct file
*filp
,
882 unsigned int cmd
, unsigned long arg
);
883 extern int drm_unlock(struct inode
*inode
, struct file
*filp
,
884 unsigned int cmd
, unsigned long arg
);
885 extern int drm_lock_take(__volatile__
unsigned int *lock
,
886 unsigned int context
);
887 extern int drm_lock_free(drm_device_t
*dev
,
888 __volatile__
unsigned int *lock
,
889 unsigned int context
);
891 /* Buffer management support (drm_bufs.h) */
892 extern int drm_addmap(drm_device_t
*dev
, unsigned int offset
,
893 unsigned int size
, drm_map_type_t type
,
894 drm_map_flags_t flags
, drm_map_t
**map_ptr
);
895 extern int drm_addmap_ioctl(struct inode
*inode
, struct file
*filp
,
896 unsigned int cmd
, unsigned long arg
);
897 extern int drm_rmmap(drm_device_t
*dev
, void *handle
);
898 extern int drm_rmmap_ioctl(struct inode
*inode
, struct file
*filp
,
899 unsigned int cmd
, unsigned long arg
);
901 extern int drm_order( unsigned long size
);
902 extern int drm_addbufs( struct inode
*inode
, struct file
*filp
,
903 unsigned int cmd
, unsigned long arg
);
904 extern int drm_infobufs( struct inode
*inode
, struct file
*filp
,
905 unsigned int cmd
, unsigned long arg
);
906 extern int drm_markbufs( struct inode
*inode
, struct file
*filp
,
907 unsigned int cmd
, unsigned long arg
);
908 extern int drm_freebufs( struct inode
*inode
, struct file
*filp
,
909 unsigned int cmd
, unsigned long arg
);
910 extern int drm_mapbufs( struct inode
*inode
, struct file
*filp
,
911 unsigned int cmd
, unsigned long arg
);
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(struct inode
*inode
, struct file
*filp
,
948 unsigned int cmd
, unsigned long arg
);
949 extern int drm_agp_free(struct inode
*inode
, struct file
*filp
,
950 unsigned int cmd
, unsigned long arg
);
951 extern int drm_agp_unbind(struct inode
*inode
, struct file
*filp
,
952 unsigned int cmd
, unsigned long arg
);
953 extern int drm_agp_bind(struct inode
*inode
, struct file
*filp
,
954 unsigned int cmd
, unsigned long arg
);
955 extern DRM_AGP_MEM
*drm_agp_allocate_memory(struct agp_bridge_data
*bridge
, size_t pages
, u32 type
);
956 extern int drm_agp_free_memory(DRM_AGP_MEM
*handle
);
957 extern int drm_agp_bind_memory(DRM_AGP_MEM
*handle
, off_t start
);
958 extern int drm_agp_unbind_memory(DRM_AGP_MEM
*handle
);
960 /* Stub support (drm_stub.h) */
961 extern int drm_get_dev(struct pci_dev
*pdev
, const struct pci_device_id
*ent
,
962 struct drm_driver
*driver
);
963 extern int drm_put_dev(drm_device_t
* dev
);
964 extern int drm_put_head(drm_head_t
* head
);
965 extern unsigned int drm_debug
;
966 extern unsigned int drm_cards_limit
;
967 extern drm_head_t
**drm_heads
;
968 extern struct drm_sysfs_class
*drm_class
;
969 extern struct proc_dir_entry
*drm_proc_root
;
971 /* Proc support (drm_proc.h) */
972 extern int drm_proc_init(drm_device_t
*dev
,
974 struct proc_dir_entry
*root
,
975 struct proc_dir_entry
**dev_root
);
976 extern int drm_proc_cleanup(int minor
,
977 struct proc_dir_entry
*root
,
978 struct proc_dir_entry
*dev_root
);
980 /* Scatter Gather Support (drm_scatter.h) */
981 extern void drm_sg_cleanup(drm_sg_mem_t
*entry
);
982 extern int drm_sg_alloc(struct inode
*inode
, struct file
*filp
,
983 unsigned int cmd
, unsigned long arg
);
984 extern int drm_sg_free(struct inode
*inode
, struct file
*filp
,
985 unsigned int cmd
, unsigned long arg
);
987 /* ATI PCIGART support (ati_pcigart.h) */
988 extern int drm_ati_pcigart_init(drm_device_t
*dev
,
990 dma_addr_t
*bus_addr
);
991 extern int drm_ati_pcigart_cleanup(drm_device_t
*dev
,
993 dma_addr_t bus_addr
);
995 extern drm_dma_handle_t
*drm_pci_alloc(drm_device_t
*dev
, size_t size
,
996 size_t align
, dma_addr_t maxaddr
);
997 extern void __drm_pci_free(drm_device_t
*dev
, drm_dma_handle_t
*dmah
);
998 extern void drm_pci_free(drm_device_t
*dev
, drm_dma_handle_t
*dmah
);
1000 /* sysfs support (drm_sysfs.c) */
1001 struct drm_sysfs_class
;
1002 extern struct drm_sysfs_class
*drm_sysfs_create(struct module
*owner
,
1004 extern void drm_sysfs_destroy(struct drm_sysfs_class
*cs
);
1005 extern struct class_device
*drm_sysfs_device_add(struct drm_sysfs_class
*cs
,
1007 struct device
*device
,
1008 const char *fmt
, ...);
1009 extern void drm_sysfs_device_remove(dev_t dev
);
1012 /* Inline replacements for DRM_IOREMAP macros */
1013 static __inline__
void drm_core_ioremap(struct drm_map
*map
, struct drm_device
*dev
)
1015 map
->handle
= drm_ioremap( map
->offset
, map
->size
, dev
);
1018 static __inline__
void drm_core_ioremap_nocache(struct drm_map
*map
, struct drm_device
*dev
)
1020 map
->handle
= drm_ioremap_nocache(map
->offset
, map
->size
, dev
);
1023 static __inline__
void drm_core_ioremapfree(struct drm_map
*map
, struct drm_device
*dev
)
1025 if ( map
->handle
&& map
->size
)
1026 drm_ioremapfree( map
->handle
, map
->size
, dev
);
1029 static __inline__
struct drm_map
*drm_core_findmap(struct drm_device
*dev
, unsigned long offset
)
1031 struct list_head
*_list
;
1032 list_for_each( _list
, &dev
->maplist
->head
) {
1033 drm_map_list_t
*_entry
= list_entry( _list
, drm_map_list_t
, head
);
1035 _entry
->map
->offset
== offset
) {
1042 static __inline__
void drm_core_dropmap(struct drm_map
*map
)
1046 #ifndef DEBUG_MEMORY
1047 /** Wrapper around kmalloc() */
1048 static __inline__
void *drm_alloc(size_t size
, int area
)
1050 return kmalloc(size
, GFP_KERNEL
);
1053 /** Wrapper around kfree() */
1054 static __inline__
void drm_free(void *pt
, size_t size
, int area
)
1059 /** Wrapper around kcalloc() */
1060 static __inline__
void *drm_calloc(size_t nmemb
, size_t size
, int area
)
1062 return kcalloc(nmemb
, size
, GFP_KERNEL
);
1065 extern void *drm_alloc(size_t size
, int area
);
1066 extern void drm_free(void *pt
, size_t size
, int area
);
1067 extern void *drm_calloc(size_t nmemb
, size_t size
, int area
);
1072 extern unsigned long drm_core_get_map_ofs(drm_map_t
*map
);
1073 extern unsigned long drm_core_get_reg_ofs(struct drm_device
*dev
);
1075 #endif /* __KERNEL__ */