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.
40 /* add include of current.h so that "current" is defined
41 * before static inline funcs in wait.h. Doing this so we
42 * can build the DRM (part of PI DRI). 4/21/2000 S + B */
43 #include <asm/current.h>
44 #endif /* __alpha__ */
45 #include <linux/config.h>
46 #include <linux/module.h>
47 #include <linux/kernel.h>
48 #include <linux/miscdevice.h>
50 #include <linux/proc_fs.h>
51 #include <linux/init.h>
52 #include <linux/file.h>
53 #include <linux/pci.h>
54 #include <linux/version.h>
55 #include <linux/jiffies.h>
56 #include <linux/smp_lock.h> /* For (un)lock_kernel */
58 #if defined(__alpha__) || defined(__powerpc__)
59 #include <asm/pgtable.h> /* For pte_wrprotect */
63 #include <asm/uaccess.h>
67 #if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
68 #include <linux/types.h>
69 #include <linux/agp_backend.h>
71 #include <linux/workqueue.h>
72 #include <linux/poll.h>
73 #include <asm/pgalloc.h>
76 #define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE)))
77 #define __OS_HAS_MTRR (defined(CONFIG_MTRR))
79 #include "drm_os_linux.h"
81 /***********************************************************************/
82 /** \name DRM template customization defaults */
85 /* driver capabilities and requirements mask */
86 #define DRIVER_USE_AGP 0x1
87 #define DRIVER_REQUIRE_AGP 0x2
88 #define DRIVER_USE_MTRR 0x4
89 #define DRIVER_PCI_DMA 0x8
90 #define DRIVER_SG 0x10
91 #define DRIVER_HAVE_DMA 0x20
92 #define DRIVER_HAVE_IRQ 0x40
93 #define DRIVER_IRQ_SHARED 0x80
94 #define DRIVER_IRQ_VBL 0x100
95 #define DRIVER_DMA_QUEUE 0x200
97 /***********************************************************************/
98 /** \name Begin the DRM... */
101 #define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then
102 also include looping detection. */
104 #define DRM_HASH_SIZE 16 /**< Size of key hash table. Must be power of 2. */
105 #define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */
106 #define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */
107 #define DRM_LOOPING_LIMIT 5000000
108 #define DRM_BSZ 1024 /**< Buffer size for /dev/drm? output */
109 #define DRM_TIME_SLICE (HZ/20) /**< Time slice for GLXContexts */
110 #define DRM_LOCK_SLICE 1 /**< Time slice for lock, in jiffies */
112 #define DRM_FLAG_DEBUG 0x01
114 #define DRM_MEM_DMA 0
115 #define DRM_MEM_SAREA 1
116 #define DRM_MEM_DRIVER 2
117 #define DRM_MEM_MAGIC 3
118 #define DRM_MEM_IOCTLS 4
119 #define DRM_MEM_MAPS 5
120 #define DRM_MEM_VMAS 6
121 #define DRM_MEM_BUFS 7
122 #define DRM_MEM_SEGS 8
123 #define DRM_MEM_PAGES 9
124 #define DRM_MEM_FILES 10
125 #define DRM_MEM_QUEUES 11
126 #define DRM_MEM_CMDS 12
127 #define DRM_MEM_MAPPINGS 13
128 #define DRM_MEM_BUFLISTS 14
129 #define DRM_MEM_AGPLISTS 15
130 #define DRM_MEM_TOTALAGP 16
131 #define DRM_MEM_BOUNDAGP 17
132 #define DRM_MEM_CTXBITMAP 18
133 #define DRM_MEM_STUB 19
134 #define DRM_MEM_SGLISTS 20
135 #define DRM_MEM_CTXLIST 21
137 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
142 /***********************************************************************/
143 /** \name Backward compatibility section */
146 #ifndef MODULE_LICENSE
147 #define MODULE_LICENSE(x)
150 #ifndef preempt_disable
151 #define preempt_disable()
152 #define preempt_enable()
155 #ifndef pte_offset_map
156 #define pte_offset_map pte_offset
157 #define pte_unmap(pte)
160 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,19)
161 static inline struct page
* vmalloc_to_page(void * vmalloc_addr
)
163 unsigned long addr
= (unsigned long) vmalloc_addr
;
164 struct page
*page
= NULL
;
165 pgd_t
*pgd
= pgd_offset_k(addr
);
169 if (!pgd_none(*pgd
)) {
170 pmd
= pmd_offset(pgd
, addr
);
171 if (!pmd_none(*pmd
)) {
173 ptep
= pte_offset_map(pmd
, addr
);
175 if (pte_present(pte
))
176 page
= pte_page(pte
);
185 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
186 #define DRM_RPR_ARG(vma)
188 #define DRM_RPR_ARG(vma) vma,
191 #define VM_OFFSET(vma) ((vma)->vm_pgoff << PAGE_SHIFT)
196 /***********************************************************************/
197 /** \name Macros to make printk easier */
203 * \param fmt printf() like format string.
204 * \param arg arguments
206 #define DRM_ERROR(fmt, arg...) \
207 printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* " fmt , __FUNCTION__ , ##arg)
210 * Memory error output.
212 * \param area memory area where the error occurred.
213 * \param fmt printf() like format string.
214 * \param arg arguments
216 #define DRM_MEM_ERROR(area, fmt, arg...) \
217 printk(KERN_ERR "[" DRM_NAME ":%s:%s] *ERROR* " fmt , __FUNCTION__, \
218 DRM(mem_stats)[area].name , ##arg)
219 #define DRM_INFO(fmt, arg...) printk(KERN_INFO "[" DRM_NAME "] " fmt , ##arg)
224 * \param fmt printf() like format string.
225 * \param arg arguments
228 #define DRM_DEBUG(fmt, arg...) \
230 if ( DRM(flags) & DRM_FLAG_DEBUG ) \
232 "[" DRM_NAME ":%s] " fmt , \
233 __FUNCTION__ , ##arg); \
236 #define DRM_DEBUG(fmt, arg...) do { } while (0)
239 #define DRM_PROC_LIMIT (PAGE_SIZE-80)
241 #define DRM_PROC_PRINT(fmt, arg...) \
242 len += sprintf(&buf[len], fmt , ##arg); \
243 if (len > DRM_PROC_LIMIT) { *eof = 1; return len - offset; }
245 #define DRM_PROC_PRINT_RET(ret, fmt, arg...) \
246 len += sprintf(&buf[len], fmt , ##arg); \
247 if (len > DRM_PROC_LIMIT) { ret; *eof = 1; return len - offset; }
252 /***********************************************************************/
253 /** \name Internal types and structures */
256 #define DRM_ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
257 #define DRM_MIN(a,b) ((a)<(b)?(a):(b))
258 #define DRM_MAX(a,b) ((a)>(b)?(a):(b))
260 #define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
261 #define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
262 #define DRM_WAITCOUNT(dev,idx) DRM_BUFCOUNT(&dev->queuelist[idx]->waitlist)
264 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
266 * Get the private SAREA mapping.
268 * \param _dev DRM device.
269 * \param _ctx context number.
270 * \param _map output mapping.
272 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
273 (_map) = (_dev)->context_sareas[_ctx]; \
277 * Test that the hardware lock is held by the caller, returning otherwise.
279 * \param dev DRM device.
280 * \param filp file pointer of the caller.
282 #define LOCK_TEST_WITH_RETURN( dev, filp ) \
284 if ( !_DRM_LOCK_IS_HELD( dev->lock.hw_lock->lock ) || \
285 dev->lock.filp != filp ) { \
286 DRM_ERROR( "%s called without lock held\n", \
293 * Ioctl function type.
295 * \param inode device inode.
296 * \param filp file pointer.
297 * \param cmd command.
298 * \param arg argument.
300 typedef int drm_ioctl_t( struct inode
*inode
, struct file
*filp
,
301 unsigned int cmd
, unsigned long arg
);
303 typedef struct drm_ioctl_desc
{
309 typedef struct drm_devstate
{
310 pid_t owner
; /**< X server pid holding x_lock */
313 typedef struct drm_magic_entry
{
315 struct drm_file
*priv
;
316 struct drm_magic_entry
*next
;
319 typedef struct drm_magic_head
{
320 struct drm_magic_entry
*head
;
321 struct drm_magic_entry
*tail
;
324 typedef struct drm_vma_entry
{
325 struct vm_area_struct
*vma
;
326 struct drm_vma_entry
*next
;
333 typedef struct drm_buf
{
334 int idx
; /**< Index into master buflist */
335 int total
; /**< Buffer size */
336 int order
; /**< log-base-2(total) */
337 int used
; /**< Amount of buffer in use (for DMA) */
338 unsigned long offset
; /**< Byte offset (used internally) */
339 void *address
; /**< Address of buffer */
340 unsigned long bus_address
; /**< Bus address of buffer */
341 struct drm_buf
*next
; /**< Kernel-only: used for free list */
342 __volatile__
int waiting
; /**< On kernel DMA queue */
343 __volatile__
int pending
; /**< On hardware DMA queue */
344 wait_queue_head_t dma_wait
; /**< Processes waiting */
345 struct file
*filp
; /**< Pointer to holding file descr */
346 int context
; /**< Kernel queue for this buffer */
347 int while_locked
;/**< Dispatch this buffer while locked */
355 } list
; /**< Which list we're on */
357 int dev_priv_size
; /**< Size of buffer private storage */
358 void *dev_private
; /**< Per-buffer private storage */
362 /** bufs is one longer than it has to be */
363 typedef struct drm_waitlist
{
364 int count
; /**< Number of possible buffers */
365 drm_buf_t
**bufs
; /**< List of pointers to buffers */
366 drm_buf_t
**rp
; /**< Read pointer */
367 drm_buf_t
**wp
; /**< Write pointer */
368 drm_buf_t
**end
; /**< End pointer */
369 spinlock_t read_lock
;
370 spinlock_t write_lock
;
373 typedef struct drm_freelist
{
374 int initialized
; /**< Freelist in use */
375 atomic_t count
; /**< Number of free buffers */
376 drm_buf_t
*next
; /**< End pointer */
378 wait_queue_head_t waiting
; /**< Processes waiting on free bufs */
379 int low_mark
; /**< Low water mark */
380 int high_mark
; /**< High water mark */
381 atomic_t wfh
; /**< If waiting for high mark */
386 * Buffer entry. There is one of this for each buffer size order.
388 typedef struct drm_buf_entry
{
389 int buf_size
; /**< size */
390 int buf_count
; /**< number of buffers */
391 drm_buf_t
*buflist
; /**< buffer list */
394 unsigned long *seglist
;
396 drm_freelist_t freelist
;
399 /** File private data */
400 typedef struct drm_file
{
406 unsigned long ioctl_count
;
407 struct drm_file
*next
;
408 struct drm_file
*prev
;
409 struct drm_device
*dev
;
410 int remove_auth_on_close
;
411 unsigned long lock_count
;
416 typedef struct drm_queue
{
417 atomic_t use_count
; /**< Outstanding uses (+1) */
418 atomic_t finalization
; /**< Finalization in progress */
419 atomic_t block_count
; /**< Count of processes waiting */
420 atomic_t block_read
; /**< Queue blocked for reads */
421 wait_queue_head_t read_queue
; /**< Processes waiting on block_read */
422 atomic_t block_write
; /**< Queue blocked for writes */
423 wait_queue_head_t write_queue
; /**< Processes waiting on block_write */
425 atomic_t total_queued
; /**< Total queued statistic */
426 atomic_t total_flushed
;/**< Total flushes statistic */
427 atomic_t total_locks
; /**< Total locks statistics */
429 drm_ctx_flags_t flags
; /**< Context preserving and 2D-only */
430 drm_waitlist_t waitlist
; /**< Pending buffers */
431 wait_queue_head_t flush_queue
; /**< Processes waiting until flush */
437 typedef struct drm_lock_data
{
438 drm_hw_lock_t
*hw_lock
; /**< Hardware lock */
439 struct file
*filp
; /**< File descr of lock holder (0=kernel) */
440 wait_queue_head_t lock_queue
; /**< Queue of blocked processes */
441 unsigned long lock_time
; /**< Time of last lock in jiffies */
447 typedef struct drm_device_dma
{
449 drm_buf_entry_t bufs
[DRM_MAX_ORDER
+1]; /**< buffers, grouped by their size order */
450 int buf_count
; /**< total number of buffers */
451 drm_buf_t
**buflist
; /**< Vector of pointers into drm_device_dma::bufs */
453 int page_count
; /**< number of pages */
454 unsigned long *pagelist
; /**< page list */
455 unsigned long byte_count
;
457 _DRM_DMA_USE_AGP
= 0x01,
458 _DRM_DMA_USE_SG
= 0x02
464 * AGP memory entry. Stored as a doubly linked list.
466 typedef struct drm_agp_mem
{
467 unsigned long handle
; /**< handle */
469 unsigned long bound
; /**< address */
471 struct drm_agp_mem
*prev
; /**< previous entry */
472 struct drm_agp_mem
*next
; /**< next entry */
478 * \sa DRM(agp_init)() and drm_device::agp.
480 typedef struct drm_agp_head
{
481 DRM_AGP_KERN agp_info
; /**< AGP device information */
482 drm_agp_mem_t
*memory
; /**< memory entries */
483 unsigned long mode
; /**< AGP mode */
484 int enabled
; /**< whether the AGP bus as been enabled */
485 int acquired
; /**< whether the AGP device has been acquired */
488 int cant_use_aperture
;
489 unsigned long page_mask
;
493 * Scatter-gather memory.
495 typedef struct drm_sg_mem
{
496 unsigned long handle
;
499 struct page
**pagelist
;
503 typedef struct drm_sigdata
{
511 typedef struct drm_map_list
{
512 struct list_head head
; /**< list head */
513 drm_map_t
*map
; /**< mapping */
516 typedef drm_map_t drm_local_map_t
;
519 * Context handle list
521 typedef struct drm_ctx_list
{
522 struct list_head head
; /**< list head */
523 drm_context_t handle
; /**< context handle */
524 drm_file_t
*tag
; /**< associated fd private data */
528 typedef struct drm_vbl_sig
{
529 struct list_head head
;
530 unsigned int sequence
;
532 struct task_struct
*task
;
537 * DRM device functions structure
541 struct drm_driver_fn
{
542 int (*preinit
)(struct drm_device
*);
543 int (*postinit
)(struct drm_device
*);
544 void (*prerelease
)(struct drm_device
*, struct file
*filp
);
545 void (*pretakedown
)(struct drm_device
*);
546 int (*postcleanup
)(struct drm_device
*);
547 int (*presetup
)(struct drm_device
*);
548 int (*postsetup
)(struct drm_device
*);
549 int (*open_helper
)(struct drm_device
*, drm_file_t
*);
550 void (*free_filp_priv
)(struct drm_device
*, drm_file_t
*);
551 void (*release
)(struct drm_device
*, struct file
*filp
);
552 void (*dma_ready
)(struct drm_device
*);
553 int (*dma_quiescent
)(struct drm_device
*);
554 int (*context_ctor
)(struct drm_device
*dev
, int context
);
555 int (*context_dtor
)(struct drm_device
*dev
, int context
);
556 int (*kernel_context_switch
)(struct drm_device
*dev
, int old
, int new);
557 void (*kernel_context_switch_unlock
)(struct drm_device
*dev
, drm_lock_t
*lock
);
558 int (*vblank_wait
)(struct drm_device
*dev
, unsigned int *sequence
);
559 /* these have to be filled in */
560 irqreturn_t (*irq_handler
)( DRM_IRQ_ARGS
);
561 void (*irq_preinstall
)(struct drm_device
*dev
);
562 void (*irq_postinstall
)(struct drm_device
*dev
);
563 void (*irq_uninstall
)(struct drm_device
*dev
);
564 void (*reclaim_buffers
)(struct file
*filp
);
565 unsigned long (*get_map_ofs
)(drm_map_t
*map
);
566 unsigned long (*get_reg_ofs
)(struct drm_device
*dev
);
567 void (*set_version
)(struct drm_device
*dev
, drm_set_version_t
*sv
);
570 * DRM device structure.
572 typedef struct drm_device
{
573 const char *name
; /**< Simple driver name */
574 char *unique
; /**< Unique identifier: e.g., busid */
575 int unique_len
; /**< Length of unique field */
576 dev_t device
; /**< Device number for mknod */
577 char *devname
; /**< For /proc/interrupts */
578 int minor
; /**< Minor device number */
579 int if_version
; /**< Highest interface version set */
581 int blocked
; /**< Blocked due to VC switch? */
582 struct proc_dir_entry
*root
; /**< Root for this device's entries */
586 spinlock_t count_lock
; /**< For inuse, drm_device::open_count, drm_device::buf_use */
587 struct semaphore struct_sem
; /**< For others */
590 /** \name Usage Counters */
592 int open_count
; /**< Outstanding files open */
593 atomic_t ioctl_count
; /**< Outstanding IOCTLs pending */
594 atomic_t vma_count
; /**< Outstanding vma areas open */
595 int buf_use
; /**< Buffers in use -- cannot alloc */
596 atomic_t buf_alloc
; /**< Buffer allocation in progress */
599 /** \name Performance counters */
601 unsigned long counters
;
602 drm_stat_type_t types
[15];
606 /** \name Authentication */
608 drm_file_t
*file_first
; /**< file list head */
609 drm_file_t
*file_last
; /**< file list tail */
610 drm_magic_head_t magiclist
[DRM_HASH_SIZE
]; /**< magic hash table */
613 /** \name Memory management */
615 drm_map_list_t
*maplist
; /**< Linked list of regions */
616 int map_count
; /**< Number of mappable regions */
618 /** \name Context handle management */
620 drm_ctx_list_t
*ctxlist
; /**< Linked list of context handles */
621 int ctx_count
; /**< Number of context handles */
622 struct semaphore ctxlist_sem
; /**< For ctxlist */
624 drm_map_t
**context_sareas
; /**< per-context SAREA's */
627 drm_vma_entry_t
*vmalist
; /**< List of vmas (for debugging) */
628 drm_lock_data_t lock
; /**< Information on hardware lock */
631 /** \name DMA queues (contexts) */
633 int queue_count
; /**< Number of active DMA queues */
634 int queue_reserved
; /**< Number of reserved DMA queues */
635 int queue_slots
; /**< Actual length of queuelist */
636 drm_queue_t
**queuelist
; /**< Vector of pointers to DMA queues */
637 drm_device_dma_t
*dma
; /**< Optional pointer for DMA support */
640 /** \name Context support */
642 int irq
; /**< Interrupt used by board */
643 int irq_enabled
; /**< True if irq handler is enabled */
644 __volatile__
long context_flag
; /**< Context swapping flag */
645 __volatile__
long interrupt_flag
; /**< Interruption handler flag */
646 __volatile__
long dma_flag
; /**< DMA dispatch flag */
647 struct timer_list timer
; /**< Timer for delaying ctx switch */
648 wait_queue_head_t context_wait
; /**< Processes waiting on ctx switch */
649 int last_checked
; /**< Last context checked for DMA */
650 int last_context
; /**< Last current context */
651 unsigned long last_switch
; /**< jiffies at last context switch */
654 struct work_struct work
;
655 /** \name VBLANK IRQ support */
658 wait_queue_head_t vbl_queue
; /**< VBLANK wait queue */
659 atomic_t vbl_received
;
661 drm_vbl_sig_t vbl_sigs
; /**< signal list to send on VBLANK */
662 unsigned int vbl_pending
;
668 char buf
[DRM_BSZ
]; /**< Output buffer */
669 char *buf_rp
; /**< Read pointer */
670 char *buf_wp
; /**< Write pointer */
671 char *buf_end
; /**< End pointer */
672 struct fasync_struct
*buf_async
;/**< Processes waiting for SIGIO */
673 wait_queue_head_t buf_readers
; /**< Processes waiting to read */
674 wait_queue_head_t buf_writers
; /**< Processes waiting to ctx switch */
676 drm_agp_head_t
*agp
; /**< AGP data */
678 struct pci_dev
*pdev
; /**< PCI device structure */
679 int pci_domain
; /**< PCI bus domain number */
680 int pci_bus
; /**< PCI bus number */
681 int pci_slot
; /**< PCI slot number */
682 int pci_func
; /**< PCI function number */
684 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,3)
685 struct pci_controler
*hose
;
687 struct pci_controller
*hose
;
690 drm_sg_mem_t
*sg
; /**< Scatter gather memory */
691 unsigned long *ctx_bitmap
; /**< context bitmap */
692 void *dev_private
; /**< device private data */
693 drm_sigdata_t sigdata
; /**< For block_all_signals */
696 struct drm_driver_fn fn_tbl
;
697 drm_local_map_t
*agp_buffer_map
;
702 static __inline__
int drm_core_check_feature(struct drm_device
*dev
, int feature
)
704 return ((dev
->driver_features
& feature
) ? 1 : 0);
708 static inline int drm_core_has_AGP(struct drm_device
*dev
)
710 return drm_core_check_feature(dev
, DRIVER_USE_AGP
);
713 #define drm_core_has_AGP(dev) (0)
717 static inline int drm_core_has_MTRR(struct drm_device
*dev
)
719 return drm_core_check_feature(dev
, DRIVER_USE_MTRR
);
722 #define drm_core_has_MTRR(dev) (0)
725 extern void DRM(driver_register_fns
)(struct drm_device
*dev
);
727 /******************************************************************/
728 /** \name Internal function definitions */
731 /* Misc. support (drm_init.h) */
732 extern int DRM(flags
);
733 extern void DRM(parse_options
)( char *s
);
734 extern int DRM(cpu_valid
)( void );
736 /* Driver support (drm_drv.h) */
737 extern int DRM(version
)(struct inode
*inode
, struct file
*filp
,
738 unsigned int cmd
, unsigned long arg
);
739 extern int DRM(open
)(struct inode
*inode
, struct file
*filp
);
740 extern int DRM(release
)(struct inode
*inode
, struct file
*filp
);
741 extern int DRM(ioctl
)(struct inode
*inode
, struct file
*filp
,
742 unsigned int cmd
, unsigned long arg
);
743 extern int DRM(lock
)(struct inode
*inode
, struct file
*filp
,
744 unsigned int cmd
, unsigned long arg
);
745 extern int DRM(unlock
)(struct inode
*inode
, struct file
*filp
,
746 unsigned int cmd
, unsigned long arg
);
748 /* Device support (drm_fops.h) */
749 extern int DRM(open_helper
)(struct inode
*inode
, struct file
*filp
,
751 extern int DRM(flush
)(struct file
*filp
);
752 extern int DRM(fasync
)(int fd
, struct file
*filp
, int on
);
754 /* Mapping support (drm_vm.h) */
755 extern void DRM(vm_open
)(struct vm_area_struct
*vma
);
756 extern void DRM(vm_close
)(struct vm_area_struct
*vma
);
757 extern void DRM(vm_shm_close
)(struct vm_area_struct
*vma
);
758 extern int DRM(mmap_dma
)(struct file
*filp
,
759 struct vm_area_struct
*vma
);
760 extern int DRM(mmap
)(struct file
*filp
, struct vm_area_struct
*vma
);
761 extern unsigned int DRM(poll
)(struct file
*filp
, struct poll_table_struct
*wait
);
762 extern ssize_t
DRM(read
)(struct file
*filp
, char __user
*buf
, size_t count
, loff_t
*off
);
764 /* Memory management support (drm_memory.h) */
765 extern void DRM(mem_init
)(void);
766 extern int DRM(mem_info
)(char *buf
, char **start
, off_t offset
,
767 int request
, int *eof
, void *data
);
768 extern void *DRM(alloc
)(size_t size
, int area
);
769 extern void *DRM(calloc
)(size_t nmemb
, size_t size
, int area
);
770 extern void *DRM(realloc
)(void *oldpt
, size_t oldsize
, size_t size
,
772 extern void DRM(free
)(void *pt
, size_t size
, int area
);
773 extern unsigned long DRM(alloc_pages
)(int order
, int area
);
774 extern void DRM(free_pages
)(unsigned long address
, int order
,
776 extern void *DRM(ioremap
)(unsigned long offset
, unsigned long size
, drm_device_t
*dev
);
777 extern void *DRM(ioremap_nocache
)(unsigned long offset
, unsigned long size
,
779 extern void DRM(ioremapfree
)(void *pt
, unsigned long size
, drm_device_t
*dev
);
781 extern DRM_AGP_MEM
*DRM(alloc_agp
)(int pages
, u32 type
);
782 extern int DRM(free_agp
)(DRM_AGP_MEM
*handle
, int pages
);
783 extern int DRM(bind_agp
)(DRM_AGP_MEM
*handle
, unsigned int start
);
784 extern int DRM(unbind_agp
)(DRM_AGP_MEM
*handle
);
786 /* Misc. IOCTL support (drm_ioctl.h) */
787 extern int DRM(irq_by_busid
)(struct inode
*inode
, struct file
*filp
,
788 unsigned int cmd
, unsigned long arg
);
789 extern int DRM(getunique
)(struct inode
*inode
, struct file
*filp
,
790 unsigned int cmd
, unsigned long arg
);
791 extern int DRM(setunique
)(struct inode
*inode
, struct file
*filp
,
792 unsigned int cmd
, unsigned long arg
);
793 extern int DRM(getmap
)(struct inode
*inode
, struct file
*filp
,
794 unsigned int cmd
, unsigned long arg
);
795 extern int DRM(getclient
)(struct inode
*inode
, struct file
*filp
,
796 unsigned int cmd
, unsigned long arg
);
797 extern int DRM(getstats
)(struct inode
*inode
, struct file
*filp
,
798 unsigned int cmd
, unsigned long arg
);
799 extern int DRM(setversion
)(struct inode
*inode
, struct file
*filp
,
800 unsigned int cmd
, unsigned long arg
);
802 /* Context IOCTL support (drm_context.h) */
803 extern int DRM(resctx
)( struct inode
*inode
, struct file
*filp
,
804 unsigned int cmd
, unsigned long arg
);
805 extern int DRM(addctx
)( struct inode
*inode
, struct file
*filp
,
806 unsigned int cmd
, unsigned long arg
);
807 extern int DRM(modctx
)( struct inode
*inode
, struct file
*filp
,
808 unsigned int cmd
, unsigned long arg
);
809 extern int DRM(getctx
)( struct inode
*inode
, struct file
*filp
,
810 unsigned int cmd
, unsigned long arg
);
811 extern int DRM(switchctx
)( struct inode
*inode
, struct file
*filp
,
812 unsigned int cmd
, unsigned long arg
);
813 extern int DRM(newctx
)( struct inode
*inode
, struct file
*filp
,
814 unsigned int cmd
, unsigned long arg
);
815 extern int DRM(rmctx
)( struct inode
*inode
, struct file
*filp
,
816 unsigned int cmd
, unsigned long arg
);
818 extern int DRM(context_switch
)(drm_device_t
*dev
, int old
, int new);
819 extern int DRM(context_switch_complete
)(drm_device_t
*dev
, int new);
821 extern int DRM(ctxbitmap_init
)( drm_device_t
*dev
);
822 extern void DRM(ctxbitmap_cleanup
)( drm_device_t
*dev
);
824 extern int DRM(setsareactx
)( struct inode
*inode
, struct file
*filp
,
825 unsigned int cmd
, unsigned long arg
);
826 extern int DRM(getsareactx
)( struct inode
*inode
, struct file
*filp
,
827 unsigned int cmd
, unsigned long arg
);
829 /* Drawable IOCTL support (drm_drawable.h) */
830 extern int DRM(adddraw
)(struct inode
*inode
, struct file
*filp
,
831 unsigned int cmd
, unsigned long arg
);
832 extern int DRM(rmdraw
)(struct inode
*inode
, struct file
*filp
,
833 unsigned int cmd
, unsigned long arg
);
836 /* Authentication IOCTL support (drm_auth.h) */
837 extern int DRM(add_magic
)(drm_device_t
*dev
, drm_file_t
*priv
,
839 extern int DRM(remove_magic
)(drm_device_t
*dev
, drm_magic_t magic
);
840 extern int DRM(getmagic
)(struct inode
*inode
, struct file
*filp
,
841 unsigned int cmd
, unsigned long arg
);
842 extern int DRM(authmagic
)(struct inode
*inode
, struct file
*filp
,
843 unsigned int cmd
, unsigned long arg
);
845 /* Placeholder for ioctls past */
846 extern int DRM(noop
)(struct inode
*inode
, struct file
*filp
,
847 unsigned int cmd
, unsigned long arg
);
849 /* Locking IOCTL support (drm_lock.h) */
850 extern int DRM(lock_take
)(__volatile__
unsigned int *lock
,
851 unsigned int context
);
852 extern int DRM(lock_transfer
)(drm_device_t
*dev
,
853 __volatile__
unsigned int *lock
,
854 unsigned int context
);
855 extern int DRM(lock_free
)(drm_device_t
*dev
,
856 __volatile__
unsigned int *lock
,
857 unsigned int context
);
858 extern int DRM(notifier
)(void *priv
);
860 /* Buffer management support (drm_bufs.h) */
861 extern int DRM(order
)( unsigned long size
);
862 extern int DRM(addmap
)( struct inode
*inode
, struct file
*filp
,
863 unsigned int cmd
, unsigned long arg
);
864 extern int DRM(rmmap
)( struct inode
*inode
, struct file
*filp
,
865 unsigned int cmd
, unsigned long arg
);
866 extern int DRM(addbufs
)( struct inode
*inode
, struct file
*filp
,
867 unsigned int cmd
, unsigned long arg
);
868 extern int DRM(infobufs
)( struct inode
*inode
, struct file
*filp
,
869 unsigned int cmd
, unsigned long arg
);
870 extern int DRM(markbufs
)( struct inode
*inode
, struct file
*filp
,
871 unsigned int cmd
, unsigned long arg
);
872 extern int DRM(freebufs
)( struct inode
*inode
, struct file
*filp
,
873 unsigned int cmd
, unsigned long arg
);
874 extern int DRM(mapbufs
)( struct inode
*inode
, struct file
*filp
,
875 unsigned int cmd
, unsigned long arg
);
877 /* DMA support (drm_dma.h) */
878 extern int DRM(dma_setup
)(drm_device_t
*dev
);
879 extern void DRM(dma_takedown
)(drm_device_t
*dev
);
880 extern void DRM(free_buffer
)(drm_device_t
*dev
, drm_buf_t
*buf
);
881 extern void DRM(reclaim_buffers
)( struct file
*filp
);
883 /* IRQ support (drm_irq.h) */
884 extern int DRM(control
)( struct inode
*inode
, struct file
*filp
,
885 unsigned int cmd
, unsigned long arg
);
886 extern int DRM(irq_install
)( drm_device_t
*dev
);
887 extern int DRM(irq_uninstall
)( drm_device_t
*dev
);
888 extern irqreturn_t
DRM(irq_handler
)( DRM_IRQ_ARGS
);
889 extern void DRM(driver_irq_preinstall
)( drm_device_t
*dev
);
890 extern void DRM(driver_irq_postinstall
)( drm_device_t
*dev
);
891 extern void DRM(driver_irq_uninstall
)( drm_device_t
*dev
);
893 extern int DRM(wait_vblank
)(struct inode
*inode
, struct file
*filp
,
894 unsigned int cmd
, unsigned long arg
);
895 extern int DRM(vblank_wait
)(drm_device_t
*dev
, unsigned int *vbl_seq
);
896 extern void DRM(vbl_send_signals
)( drm_device_t
*dev
);
898 /* AGP/GART support (drm_agpsupport.h) */
899 extern drm_agp_head_t
*DRM(agp_init
)(void);
900 extern void DRM(agp_uninit
)(void);
901 extern int DRM(agp_acquire
)(struct inode
*inode
, struct file
*filp
,
902 unsigned int cmd
, unsigned long arg
);
903 extern void DRM(agp_do_release
)(void);
904 extern int DRM(agp_release
)(struct inode
*inode
, struct file
*filp
,
905 unsigned int cmd
, unsigned long arg
);
906 extern int DRM(agp_enable
)(struct inode
*inode
, struct file
*filp
,
907 unsigned int cmd
, unsigned long arg
);
908 extern int DRM(agp_info
)(struct inode
*inode
, struct file
*filp
,
909 unsigned int cmd
, unsigned long arg
);
910 extern int DRM(agp_alloc
)(struct inode
*inode
, struct file
*filp
,
911 unsigned int cmd
, unsigned long arg
);
912 extern int DRM(agp_free
)(struct inode
*inode
, struct file
*filp
,
913 unsigned int cmd
, unsigned long arg
);
914 extern int DRM(agp_unbind
)(struct inode
*inode
, struct file
*filp
,
915 unsigned int cmd
, unsigned long arg
);
916 extern int DRM(agp_bind
)(struct inode
*inode
, struct file
*filp
,
917 unsigned int cmd
, unsigned long arg
);
918 extern DRM_AGP_MEM
*DRM(agp_allocate_memory
)(size_t pages
, u32 type
);
919 extern int DRM(agp_free_memory
)(DRM_AGP_MEM
*handle
);
920 extern int DRM(agp_bind_memory
)(DRM_AGP_MEM
*handle
, off_t start
);
921 extern int DRM(agp_unbind_memory
)(DRM_AGP_MEM
*handle
);
923 /* Stub support (drm_stub.h) */
924 int DRM(stub_register
)(const char *name
,
925 struct file_operations
*fops
,
927 int DRM(stub_unregister
)(int minor
);
929 /* Proc support (drm_proc.h) */
930 extern struct proc_dir_entry
*DRM(proc_init
)(drm_device_t
*dev
,
932 struct proc_dir_entry
*root
,
933 struct proc_dir_entry
**dev_root
);
934 extern int DRM(proc_cleanup
)(int minor
,
935 struct proc_dir_entry
*root
,
936 struct proc_dir_entry
*dev_root
);
938 /* Scatter Gather Support (drm_scatter.h) */
939 extern void DRM(sg_cleanup
)(drm_sg_mem_t
*entry
);
940 extern int DRM(sg_alloc
)(struct inode
*inode
, struct file
*filp
,
941 unsigned int cmd
, unsigned long arg
);
942 extern int DRM(sg_free
)(struct inode
*inode
, struct file
*filp
,
943 unsigned int cmd
, unsigned long arg
);
945 /* ATI PCIGART support (ati_pcigart.h) */
946 extern int DRM(ati_pcigart_init
)(drm_device_t
*dev
,
948 dma_addr_t
*bus_addr
);
949 extern int DRM(ati_pcigart_cleanup
)(drm_device_t
*dev
,
951 dma_addr_t bus_addr
);
954 /* Inline replacements for DRM_IOREMAP macros */
955 static __inline__
void drm_core_ioremap(struct drm_map
*map
, struct drm_device
*dev
)
957 map
->handle
= DRM(ioremap
)( map
->offset
, map
->size
, dev
);
960 static __inline__
void drm_core_ioremap_nocache(struct drm_map
*map
, struct drm_device
*dev
)
962 map
->handle
= DRM(ioremap_nocache
)(map
->offset
, map
->size
, dev
);
965 static __inline__
void drm_core_ioremapfree(struct drm_map
*map
, struct drm_device
*dev
)
967 if ( map
->handle
&& map
->size
)
968 DRM(ioremapfree
)( map
->handle
, map
->size
, dev
);
971 static __inline__
struct drm_map
*drm_core_findmap(struct drm_device
*dev
, unsigned long offset
)
973 struct list_head
*_list
;
974 list_for_each( _list
, &dev
->maplist
->head
) {
975 drm_map_list_t
*_entry
= list_entry( _list
, drm_map_list_t
, head
);
977 _entry
->map
->offset
== offset
) {
984 static __inline__
void drm_core_dropmap(struct drm_map
*map
)
989 extern unsigned long DRM(core_get_map_ofs
)(drm_map_t
*map
);
990 extern unsigned long DRM(core_get_reg_ofs
)(struct drm_device
*dev
);
992 #endif /* __KERNEL__ */