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/module.h>
48 #include <linux/kernel.h>
49 #include <linux/miscdevice.h>
51 #include <linux/proc_fs.h>
52 #include <linux/init.h>
53 #include <linux/file.h>
54 #include <linux/pci.h>
55 #include <linux/jiffies.h>
56 #include <linux/smp_lock.h> /* For (un)lock_kernel */
58 #include <linux/cdev.h>
59 #include <linux/mutex.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 #include <linux/idr.h>
80 #define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE)))
81 #define __OS_HAS_MTRR (defined(CONFIG_MTRR))
86 #include "drm_os_linux.h"
87 #include "drm_hashtab.h"
89 /***********************************************************************/
90 /** \name DRM template customization defaults */
93 /* driver capabilities and requirements mask */
94 #define DRIVER_USE_AGP 0x1
95 #define DRIVER_REQUIRE_AGP 0x2
96 #define DRIVER_USE_MTRR 0x4
97 #define DRIVER_PCI_DMA 0x8
98 #define DRIVER_SG 0x10
99 #define DRIVER_HAVE_DMA 0x20
100 #define DRIVER_HAVE_IRQ 0x40
101 #define DRIVER_IRQ_SHARED 0x80
102 #define DRIVER_IRQ_VBL 0x100
103 #define DRIVER_DMA_QUEUE 0x200
104 #define DRIVER_FB_DMA 0x400
105 #define DRIVER_IRQ_VBL2 0x800
107 /***********************************************************************/
108 /** \name Begin the DRM... */
111 #define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then
112 also include looping detection. */
114 #define DRM_MAGIC_HASH_ORDER 4 /**< Size of key hash table. Must be power of 2. */
115 #define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */
116 #define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */
117 #define DRM_LOOPING_LIMIT 5000000
118 #define DRM_TIME_SLICE (HZ/20) /**< Time slice for GLXContexts */
119 #define DRM_LOCK_SLICE 1 /**< Time slice for lock, in jiffies */
121 #define DRM_FLAG_DEBUG 0x01
123 #define DRM_MEM_DMA 0
124 #define DRM_MEM_SAREA 1
125 #define DRM_MEM_DRIVER 2
126 #define DRM_MEM_MAGIC 3
127 #define DRM_MEM_IOCTLS 4
128 #define DRM_MEM_MAPS 5
129 #define DRM_MEM_VMAS 6
130 #define DRM_MEM_BUFS 7
131 #define DRM_MEM_SEGS 8
132 #define DRM_MEM_PAGES 9
133 #define DRM_MEM_FILES 10
134 #define DRM_MEM_QUEUES 11
135 #define DRM_MEM_CMDS 12
136 #define DRM_MEM_MAPPINGS 13
137 #define DRM_MEM_BUFLISTS 14
138 #define DRM_MEM_AGPLISTS 15
139 #define DRM_MEM_TOTALAGP 16
140 #define DRM_MEM_BOUNDAGP 17
141 #define DRM_MEM_CTXBITMAP 18
142 #define DRM_MEM_STUB 19
143 #define DRM_MEM_SGLISTS 20
144 #define DRM_MEM_CTXLIST 21
145 #define DRM_MEM_MM 22
146 #define DRM_MEM_HASHTAB 23
148 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
149 #define DRM_MAP_HASH_OFFSET 0x10000000
153 /***********************************************************************/
154 /** \name Macros to make printk easier */
160 * \param fmt printf() like format string.
161 * \param arg arguments
163 #define DRM_ERROR(fmt, arg...) \
164 printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* " fmt , __FUNCTION__ , ##arg)
167 * Memory error output.
169 * \param area memory area where the error occurred.
170 * \param fmt printf() like format string.
171 * \param arg arguments
173 #define DRM_MEM_ERROR(area, fmt, arg...) \
174 printk(KERN_ERR "[" DRM_NAME ":%s:%s] *ERROR* " fmt , __FUNCTION__, \
175 drm_mem_stats[area].name , ##arg)
177 #define DRM_INFO(fmt, arg...) printk(KERN_INFO "[" DRM_NAME "] " fmt , ##arg)
182 * \param fmt printf() like format string.
183 * \param arg arguments
186 #define DRM_DEBUG(fmt, arg...) \
190 "[" DRM_NAME ":%s] " fmt , \
191 __FUNCTION__ , ##arg); \
194 #define DRM_DEBUG(fmt, arg...) do { } while (0)
197 #define DRM_PROC_LIMIT (PAGE_SIZE-80)
199 #define DRM_PROC_PRINT(fmt, arg...) \
200 len += sprintf(&buf[len], fmt , ##arg); \
201 if (len > DRM_PROC_LIMIT) { *eof = 1; return len - offset; }
203 #define DRM_PROC_PRINT_RET(ret, fmt, arg...) \
204 len += sprintf(&buf[len], fmt , ##arg); \
205 if (len > DRM_PROC_LIMIT) { ret; *eof = 1; return len - offset; }
209 /***********************************************************************/
210 /** \name Internal types and structures */
213 #define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x)
215 #define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
216 #define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
217 #define DRM_WAITCOUNT(dev,idx) DRM_BUFCOUNT(&dev->queuelist[idx]->waitlist)
219 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
221 * Get the private SAREA mapping.
223 * \param _dev DRM device.
224 * \param _ctx context number.
225 * \param _map output mapping.
227 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
228 (_map) = (_dev)->context_sareas[_ctx]; \
232 * Test that the hardware lock is held by the caller, returning otherwise.
234 * \param dev DRM device.
235 * \param filp file pointer of the caller.
237 #define LOCK_TEST_WITH_RETURN( dev, file_priv ) \
239 if ( !_DRM_LOCK_IS_HELD( dev->lock.hw_lock->lock ) || \
240 dev->lock.file_priv != file_priv ) { \
241 DRM_ERROR( "%s called without lock held, held %d owner %p %p\n",\
242 __FUNCTION__, _DRM_LOCK_IS_HELD( dev->lock.hw_lock->lock ),\
243 dev->lock.file_priv, file_priv ); \
249 * Copy and IOCTL return string to user space
251 #define DRM_COPY( name, value ) \
252 len = strlen( value ); \
253 if ( len > name##_len ) len = name##_len; \
254 name##_len = strlen( value ); \
255 if ( len && name ) { \
256 if ( copy_to_user( name, value, len ) ) \
261 * Ioctl function type.
263 * \param inode device inode.
264 * \param file_priv DRM file private pointer.
265 * \param cmd command.
266 * \param arg argument.
268 typedef int drm_ioctl_t(struct drm_device
*dev
, void *data
,
269 struct drm_file
*file_priv
);
271 typedef int drm_ioctl_compat_t(struct file
*filp
, unsigned int cmd
,
275 #define DRM_MASTER 0x2
276 #define DRM_ROOT_ONLY 0x4
278 struct drm_ioctl_desc
{
285 * Creates a driver or general drm_ioctl_desc array entry for the given
286 * ioctl, for use by drm_ioctl().
288 #define DRM_IOCTL_DEF(ioctl, func, flags) \
289 [DRM_IOCTL_NR(ioctl)] = {ioctl, func, flags}
291 struct drm_magic_entry
{
292 struct list_head head
;
293 struct drm_hash_item hash_item
;
294 struct drm_file
*priv
;
297 struct drm_vma_entry
{
298 struct list_head head
;
299 struct vm_area_struct
*vma
;
307 int idx
; /**< Index into master buflist */
308 int total
; /**< Buffer size */
309 int order
; /**< log-base-2(total) */
310 int used
; /**< Amount of buffer in use (for DMA) */
311 unsigned long offset
; /**< Byte offset (used internally) */
312 void *address
; /**< Address of buffer */
313 unsigned long bus_address
; /**< Bus address of buffer */
314 struct drm_buf
*next
; /**< Kernel-only: used for free list */
315 __volatile__
int waiting
; /**< On kernel DMA queue */
316 __volatile__
int pending
; /**< On hardware DMA queue */
317 wait_queue_head_t dma_wait
; /**< Processes waiting */
318 struct drm_file
*file_priv
; /**< Private of holding file descr */
319 int context
; /**< Kernel queue for this buffer */
320 int while_locked
; /**< Dispatch this buffer while locked */
328 } list
; /**< Which list we're on */
330 int dev_priv_size
; /**< Size of buffer private storage */
331 void *dev_private
; /**< Per-buffer private storage */
334 /** bufs is one longer than it has to be */
335 struct drm_waitlist
{
336 int count
; /**< Number of possible buffers */
337 struct drm_buf
**bufs
; /**< List of pointers to buffers */
338 struct drm_buf
**rp
; /**< Read pointer */
339 struct drm_buf
**wp
; /**< Write pointer */
340 struct drm_buf
**end
; /**< End pointer */
341 spinlock_t read_lock
;
342 spinlock_t write_lock
;
345 struct drm_freelist
{
346 int initialized
; /**< Freelist in use */
347 atomic_t count
; /**< Number of free buffers */
348 struct drm_buf
*next
; /**< End pointer */
350 wait_queue_head_t waiting
; /**< Processes waiting on free bufs */
351 int low_mark
; /**< Low water mark */
352 int high_mark
; /**< High water mark */
353 atomic_t wfh
; /**< If waiting for high mark */
357 typedef struct drm_dma_handle
{
364 * Buffer entry. There is one of this for each buffer size order.
366 struct drm_buf_entry
{
367 int buf_size
; /**< size */
368 int buf_count
; /**< number of buffers */
369 struct drm_buf
*buflist
; /**< buffer list */
372 struct drm_dma_handle
**seglist
;
374 struct drm_freelist freelist
;
377 /** File private data */
385 unsigned long ioctl_count
;
386 struct list_head lhead
;
387 struct drm_head
*head
;
388 int remove_auth_on_close
;
389 unsigned long lock_count
;
396 atomic_t use_count
; /**< Outstanding uses (+1) */
397 atomic_t finalization
; /**< Finalization in progress */
398 atomic_t block_count
; /**< Count of processes waiting */
399 atomic_t block_read
; /**< Queue blocked for reads */
400 wait_queue_head_t read_queue
; /**< Processes waiting on block_read */
401 atomic_t block_write
; /**< Queue blocked for writes */
402 wait_queue_head_t write_queue
; /**< Processes waiting on block_write */
403 atomic_t total_queued
; /**< Total queued statistic */
404 atomic_t total_flushed
; /**< Total flushes statistic */
405 atomic_t total_locks
; /**< Total locks statistics */
406 enum drm_ctx_flags flags
; /**< Context preserving and 2D-only */
407 struct drm_waitlist waitlist
; /**< Pending buffers */
408 wait_queue_head_t flush_queue
; /**< Processes waiting until flush */
414 struct drm_lock_data
{
415 struct drm_hw_lock
*hw_lock
; /**< Hardware lock */
416 /** Private of lock holder's file (NULL=kernel) */
417 struct drm_file
*file_priv
;
418 wait_queue_head_t lock_queue
; /**< Queue of blocked processes */
419 unsigned long lock_time
; /**< Time of last lock in jiffies */
421 uint32_t kernel_waiters
;
422 uint32_t user_waiters
;
429 struct drm_device_dma
{
431 struct drm_buf_entry bufs
[DRM_MAX_ORDER
+ 1]; /**< buffers, grouped by their size order */
432 int buf_count
; /**< total number of buffers */
433 struct drm_buf
**buflist
; /**< Vector of pointers into drm_device_dma::bufs */
435 int page_count
; /**< number of pages */
436 unsigned long *pagelist
; /**< page list */
437 unsigned long byte_count
;
439 _DRM_DMA_USE_AGP
= 0x01,
440 _DRM_DMA_USE_SG
= 0x02,
441 _DRM_DMA_USE_FB
= 0x04,
442 _DRM_DMA_USE_PCI_RO
= 0x08
448 * AGP memory entry. Stored as a doubly linked list.
451 unsigned long handle
; /**< handle */
453 unsigned long bound
; /**< address */
455 struct list_head head
;
461 * \sa drm_agp_init() and drm_device::agp.
463 struct drm_agp_head
{
464 DRM_AGP_KERN agp_info
; /**< AGP device information */
465 struct list_head memory
;
466 unsigned long mode
; /**< AGP mode */
467 struct agp_bridge_data
*bridge
;
468 int enabled
; /**< whether the AGP bus as been enabled */
469 int acquired
; /**< whether the AGP device has been acquired */
472 int cant_use_aperture
;
473 unsigned long page_mask
;
477 * Scatter-gather memory.
480 unsigned long handle
;
483 struct page
**pagelist
;
489 struct drm_hw_lock
*lock
;
494 * Generic memory manager structs
498 struct list_head fl_entry
;
499 struct list_head ml_entry
;
508 struct list_head fl_entry
;
509 struct list_head ml_entry
;
516 struct drm_map_list
{
517 struct list_head head
; /**< list head */
518 struct drm_hash_item hash
;
519 struct drm_map
*map
; /**< mapping */
523 typedef struct drm_map drm_local_map_t
;
526 * Context handle list
528 struct drm_ctx_list
{
529 struct list_head head
; /**< list head */
530 drm_context_t handle
; /**< context handle */
531 struct drm_file
*tag
; /**< associated fd private data */
535 struct list_head head
;
536 unsigned int sequence
;
538 struct task_struct
*task
;
541 /* location of GART table */
542 #define DRM_ATI_GART_MAIN 1
543 #define DRM_ATI_GART_FB 2
545 #define DRM_ATI_GART_PCI 1
546 #define DRM_ATI_GART_PCIE 2
547 #define DRM_ATI_GART_IGP 3
549 struct drm_ati_pcigart_info
{
550 int gart_table_location
;
554 drm_local_map_t mapping
;
559 * DRM driver structure. This structure represent the common code for
560 * a family of cards. There will one drm_device for each card present
564 int (*load
) (struct drm_device
*, unsigned long flags
);
565 int (*firstopen
) (struct drm_device
*);
566 int (*open
) (struct drm_device
*, struct drm_file
*);
567 void (*preclose
) (struct drm_device
*, struct drm_file
*file_priv
);
568 void (*postclose
) (struct drm_device
*, struct drm_file
*);
569 void (*lastclose
) (struct drm_device
*);
570 int (*unload
) (struct drm_device
*);
571 int (*dma_ioctl
) (struct drm_device
*dev
, void *data
, struct drm_file
*file_priv
);
572 void (*dma_ready
) (struct drm_device
*);
573 int (*dma_quiescent
) (struct drm_device
*);
574 int (*context_ctor
) (struct drm_device
*dev
, int context
);
575 int (*context_dtor
) (struct drm_device
*dev
, int context
);
576 int (*kernel_context_switch
) (struct drm_device
*dev
, int old
,
578 void (*kernel_context_switch_unlock
) (struct drm_device
*dev
);
579 int (*vblank_wait
) (struct drm_device
*dev
, unsigned int *sequence
);
580 int (*vblank_wait2
) (struct drm_device
*dev
, unsigned int *sequence
);
581 int (*dri_library_name
) (struct drm_device
*dev
, char *buf
);
584 * Called by \c drm_device_is_agp. Typically used to determine if a
585 * card is really attached to AGP or not.
587 * \param dev DRM device handle
590 * One of three values is returned depending on whether or not the
591 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
592 * (return of 1), or may or may not be AGP (return of 2).
594 int (*device_is_agp
) (struct drm_device
*dev
);
596 /* these have to be filled in */
598 irqreturn_t(*irq_handler
) (DRM_IRQ_ARGS
);
599 void (*irq_preinstall
) (struct drm_device
*dev
);
600 void (*irq_postinstall
) (struct drm_device
*dev
);
601 void (*irq_uninstall
) (struct drm_device
*dev
);
602 void (*reclaim_buffers
) (struct drm_device
*dev
,
603 struct drm_file
* file_priv
);
604 void (*reclaim_buffers_locked
) (struct drm_device
*dev
,
605 struct drm_file
*file_priv
);
606 void (*reclaim_buffers_idlelocked
) (struct drm_device
*dev
,
607 struct drm_file
*file_priv
);
608 unsigned long (*get_map_ofs
) (struct drm_map
* map
);
609 unsigned long (*get_reg_ofs
) (struct drm_device
*dev
);
610 void (*set_version
) (struct drm_device
*dev
,
611 struct drm_set_version
*sv
);
622 struct drm_ioctl_desc
*ioctls
;
624 struct file_operations fops
;
625 struct pci_driver pci_driver
;
629 * DRM head structure. This structure represent a video head on a card
630 * that may contain multiple heads. Embed one per head of these in the
631 * private drm_device structure.
634 int minor
; /**< Minor device number */
635 struct drm_device
*dev
;
636 struct proc_dir_entry
*dev_root
; /**< proc directory entry */
637 dev_t device
; /**< Device number for mknod */
638 struct class_device
*dev_class
;
642 * DRM device structure. This structure represent a complete card that
643 * may contain multiple heads.
646 char *unique
; /**< Unique identifier: e.g., busid */
647 int unique_len
; /**< Length of unique field */
648 char *devname
; /**< For /proc/interrupts */
649 int if_version
; /**< Highest interface version set */
651 int blocked
; /**< Blocked due to VC switch? */
655 spinlock_t count_lock
; /**< For inuse, drm_device::open_count, drm_device::buf_use */
656 struct mutex struct_mutex
; /**< For others */
659 /** \name Usage Counters */
661 int open_count
; /**< Outstanding files open */
662 atomic_t ioctl_count
; /**< Outstanding IOCTLs pending */
663 atomic_t vma_count
; /**< Outstanding vma areas open */
664 int buf_use
; /**< Buffers in use -- cannot alloc */
665 atomic_t buf_alloc
; /**< Buffer allocation in progress */
668 /** \name Performance counters */
670 unsigned long counters
;
671 enum drm_stat_type types
[15];
675 /** \name Authentication */
677 struct list_head filelist
;
678 struct drm_open_hash magiclist
; /**< magic hash table */
679 struct list_head magicfree
;
682 /** \name Memory management */
684 struct list_head maplist
; /**< Linked list of regions */
685 int map_count
; /**< Number of mappable regions */
686 struct drm_open_hash map_hash
; /**< User token hash table for maps */
688 /** \name Context handle management */
690 struct list_head ctxlist
; /**< Linked list of context handles */
691 int ctx_count
; /**< Number of context handles */
692 struct mutex ctxlist_mutex
; /**< For ctxlist */
696 struct list_head vmalist
; /**< List of vmas (for debugging) */
697 struct drm_lock_data lock
; /**< Information on hardware lock */
700 /** \name DMA queues (contexts) */
702 int queue_count
; /**< Number of active DMA queues */
703 int queue_reserved
; /**< Number of reserved DMA queues */
704 int queue_slots
; /**< Actual length of queuelist */
705 struct drm_queue
**queuelist
; /**< Vector of pointers to DMA queues */
706 struct drm_device_dma
*dma
; /**< Optional pointer for DMA support */
709 /** \name Context support */
711 int irq
; /**< Interrupt used by board */
712 int irq_enabled
; /**< True if irq handler is enabled */
713 __volatile__
long context_flag
; /**< Context swapping flag */
714 __volatile__
long interrupt_flag
; /**< Interruption handler flag */
715 __volatile__
long dma_flag
; /**< DMA dispatch flag */
716 struct timer_list timer
; /**< Timer for delaying ctx switch */
717 wait_queue_head_t context_wait
; /**< Processes waiting on ctx switch */
718 int last_checked
; /**< Last context checked for DMA */
719 int last_context
; /**< Last current context */
720 unsigned long last_switch
; /**< jiffies at last context switch */
723 struct work_struct work
;
724 /** \name VBLANK IRQ support */
727 wait_queue_head_t vbl_queue
; /**< VBLANK wait queue */
728 atomic_t vbl_received
;
729 atomic_t vbl_received2
; /**< number of secondary VBLANK interrupts */
731 struct list_head vbl_sigs
; /**< signal list to send on VBLANK */
732 struct list_head vbl_sigs2
; /**< signals to send on secondary VBLANK */
733 unsigned int vbl_pending
;
734 spinlock_t tasklet_lock
; /**< For drm_locked_tasklet */
735 void (*locked_tasklet_func
)(struct drm_device
*dev
);
741 struct fasync_struct
*buf_async
;/**< Processes waiting for SIGIO */
742 wait_queue_head_t buf_readers
; /**< Processes waiting to read */
743 wait_queue_head_t buf_writers
; /**< Processes waiting to ctx switch */
745 struct drm_agp_head
*agp
; /**< AGP data */
747 struct pci_dev
*pdev
; /**< PCI device structure */
748 int pci_vendor
; /**< PCI vendor id */
749 int pci_device
; /**< PCI device id */
751 struct pci_controller
*hose
;
753 struct drm_sg_mem
*sg
; /**< Scatter gather memory */
754 void *dev_private
; /**< device private data */
755 struct drm_sigdata sigdata
; /**< For block_all_signals */
758 struct drm_driver
*driver
;
759 drm_local_map_t
*agp_buffer_map
;
760 unsigned int agp_buffer_token
;
761 struct drm_head primary
; /**< primary screen head */
763 /** \name Drawable information */
770 static __inline__
int drm_core_check_feature(struct drm_device
*dev
,
773 return ((dev
->driver
->driver_features
& feature
) ? 1 : 0);
777 #define drm_get_pci_domain(dev) dev->hose->index
779 #define drm_get_pci_domain(dev) 0
783 static inline int drm_core_has_AGP(struct drm_device
*dev
)
785 return drm_core_check_feature(dev
, DRIVER_USE_AGP
);
788 #define drm_core_has_AGP(dev) (0)
792 static inline int drm_core_has_MTRR(struct drm_device
*dev
)
794 return drm_core_check_feature(dev
, DRIVER_USE_MTRR
);
797 #define DRM_MTRR_WC MTRR_TYPE_WRCOMB
799 static inline int drm_mtrr_add(unsigned long offset
, unsigned long size
,
802 return mtrr_add(offset
, size
, flags
, 1);
805 static inline int drm_mtrr_del(int handle
, unsigned long offset
,
806 unsigned long size
, unsigned int flags
)
808 return mtrr_del(handle
, offset
, size
);
812 #define drm_core_has_MTRR(dev) (0)
814 #define DRM_MTRR_WC 0
816 static inline int drm_mtrr_add(unsigned long offset
, unsigned long size
,
822 static inline int drm_mtrr_del(int handle
, unsigned long offset
,
823 unsigned long size
, unsigned int flags
)
829 /******************************************************************/
830 /** \name Internal function definitions */
833 /* Driver support (drm_drv.h) */
834 extern int drm_init(struct drm_driver
*driver
);
835 extern void drm_exit(struct drm_driver
*driver
);
836 extern int drm_ioctl(struct inode
*inode
, struct file
*filp
,
837 unsigned int cmd
, unsigned long arg
);
838 extern long drm_compat_ioctl(struct file
*filp
,
839 unsigned int cmd
, unsigned long arg
);
840 extern int drm_lastclose(struct drm_device
*dev
);
842 /* Device support (drm_fops.h) */
843 extern int drm_open(struct inode
*inode
, struct file
*filp
);
844 extern int drm_stub_open(struct inode
*inode
, struct file
*filp
);
845 extern int drm_fasync(int fd
, struct file
*filp
, int on
);
846 extern int drm_release(struct inode
*inode
, struct file
*filp
);
848 /* Mapping support (drm_vm.h) */
849 extern int drm_mmap(struct file
*filp
, struct vm_area_struct
*vma
);
850 extern unsigned int drm_poll(struct file
*filp
, struct poll_table_struct
*wait
);
852 /* Memory management support (drm_memory.h) */
853 #include "drm_memory.h"
854 extern void drm_mem_init(void);
855 extern int drm_mem_info(char *buf
, char **start
, off_t offset
,
856 int request
, int *eof
, void *data
);
857 extern void *drm_realloc(void *oldpt
, size_t oldsize
, size_t size
, int area
);
859 extern DRM_AGP_MEM
*drm_alloc_agp(struct drm_device
*dev
, int pages
, u32 type
);
860 extern int drm_free_agp(DRM_AGP_MEM
* handle
, int pages
);
861 extern int drm_bind_agp(DRM_AGP_MEM
* handle
, unsigned int start
);
862 extern int drm_unbind_agp(DRM_AGP_MEM
* handle
);
864 /* Misc. IOCTL support (drm_ioctl.h) */
865 extern int drm_irq_by_busid(struct drm_device
*dev
, void *data
,
866 struct drm_file
*file_priv
);
867 extern int drm_getunique(struct drm_device
*dev
, void *data
,
868 struct drm_file
*file_priv
);
869 extern int drm_setunique(struct drm_device
*dev
, void *data
,
870 struct drm_file
*file_priv
);
871 extern int drm_getmap(struct drm_device
*dev
, void *data
,
872 struct drm_file
*file_priv
);
873 extern int drm_getclient(struct drm_device
*dev
, void *data
,
874 struct drm_file
*file_priv
);
875 extern int drm_getstats(struct drm_device
*dev
, void *data
,
876 struct drm_file
*file_priv
);
877 extern int drm_setversion(struct drm_device
*dev
, void *data
,
878 struct drm_file
*file_priv
);
879 extern int drm_noop(struct drm_device
*dev
, void *data
,
880 struct drm_file
*file_priv
);
882 /* Context IOCTL support (drm_context.h) */
883 extern int drm_resctx(struct drm_device
*dev
, void *data
,
884 struct drm_file
*file_priv
);
885 extern int drm_addctx(struct drm_device
*dev
, void *data
,
886 struct drm_file
*file_priv
);
887 extern int drm_modctx(struct drm_device
*dev
, void *data
,
888 struct drm_file
*file_priv
);
889 extern int drm_getctx(struct drm_device
*dev
, void *data
,
890 struct drm_file
*file_priv
);
891 extern int drm_switchctx(struct drm_device
*dev
, void *data
,
892 struct drm_file
*file_priv
);
893 extern int drm_newctx(struct drm_device
*dev
, void *data
,
894 struct drm_file
*file_priv
);
895 extern int drm_rmctx(struct drm_device
*dev
, void *data
,
896 struct drm_file
*file_priv
);
898 extern int drm_ctxbitmap_init(struct drm_device
*dev
);
899 extern void drm_ctxbitmap_cleanup(struct drm_device
*dev
);
900 extern void drm_ctxbitmap_free(struct drm_device
*dev
, int ctx_handle
);
902 extern int drm_setsareactx(struct drm_device
*dev
, void *data
,
903 struct drm_file
*file_priv
);
904 extern int drm_getsareactx(struct drm_device
*dev
, void *data
,
905 struct drm_file
*file_priv
);
907 /* Drawable IOCTL support (drm_drawable.h) */
908 extern int drm_adddraw(struct drm_device
*dev
, void *data
,
909 struct drm_file
*file_priv
);
910 extern int drm_rmdraw(struct drm_device
*dev
, void *data
,
911 struct drm_file
*file_priv
);
912 extern int drm_update_drawable_info(struct drm_device
*dev
, void *data
,
913 struct drm_file
*file_priv
);
914 extern struct drm_drawable_info
*drm_get_drawable_info(struct drm_device
*dev
,
916 extern void drm_drawable_free_all(struct drm_device
*dev
);
918 /* Authentication IOCTL support (drm_auth.h) */
919 extern int drm_getmagic(struct drm_device
*dev
, void *data
,
920 struct drm_file
*file_priv
);
921 extern int drm_authmagic(struct drm_device
*dev
, void *data
,
922 struct drm_file
*file_priv
);
924 /* Locking IOCTL support (drm_lock.h) */
925 extern int drm_lock(struct drm_device
*dev
, void *data
,
926 struct drm_file
*file_priv
);
927 extern int drm_unlock(struct drm_device
*dev
, void *data
,
928 struct drm_file
*file_priv
);
929 extern int drm_lock_take(struct drm_lock_data
*lock_data
, unsigned int context
);
930 extern int drm_lock_free(struct drm_lock_data
*lock_data
, unsigned int context
);
931 extern void drm_idlelock_take(struct drm_lock_data
*lock_data
);
932 extern void drm_idlelock_release(struct drm_lock_data
*lock_data
);
935 * These are exported to drivers so that they can implement fencing using
936 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
939 extern int drm_i_have_hw_lock(struct drm_device
*dev
, struct drm_file
*file_priv
);
941 /* Buffer management support (drm_bufs.h) */
942 extern int drm_addbufs_agp(struct drm_device
*dev
, struct drm_buf_desc
* request
);
943 extern int drm_addbufs_pci(struct drm_device
*dev
, struct drm_buf_desc
* request
);
944 extern int drm_addmap(struct drm_device
*dev
, unsigned int offset
,
945 unsigned int size
, enum drm_map_type type
,
946 enum drm_map_flags flags
, drm_local_map_t
** map_ptr
);
947 extern int drm_addmap_ioctl(struct drm_device
*dev
, void *data
,
948 struct drm_file
*file_priv
);
949 extern int drm_rmmap(struct drm_device
*dev
, drm_local_map_t
*map
);
950 extern int drm_rmmap_locked(struct drm_device
*dev
, drm_local_map_t
*map
);
951 extern int drm_rmmap_ioctl(struct drm_device
*dev
, void *data
,
952 struct drm_file
*file_priv
);
953 extern int drm_addbufs(struct drm_device
*dev
, void *data
,
954 struct drm_file
*file_priv
);
955 extern int drm_infobufs(struct drm_device
*dev
, void *data
,
956 struct drm_file
*file_priv
);
957 extern int drm_markbufs(struct drm_device
*dev
, void *data
,
958 struct drm_file
*file_priv
);
959 extern int drm_freebufs(struct drm_device
*dev
, void *data
,
960 struct drm_file
*file_priv
);
961 extern int drm_mapbufs(struct drm_device
*dev
, void *data
,
962 struct drm_file
*file_priv
);
963 extern int drm_order(unsigned long size
);
964 extern unsigned long drm_get_resource_start(struct drm_device
*dev
,
965 unsigned int resource
);
966 extern unsigned long drm_get_resource_len(struct drm_device
*dev
,
967 unsigned int resource
);
969 /* DMA support (drm_dma.h) */
970 extern int drm_dma_setup(struct drm_device
*dev
);
971 extern void drm_dma_takedown(struct drm_device
*dev
);
972 extern void drm_free_buffer(struct drm_device
*dev
, struct drm_buf
* buf
);
973 extern void drm_core_reclaim_buffers(struct drm_device
*dev
,
974 struct drm_file
*filp
);
976 /* IRQ support (drm_irq.h) */
977 extern int drm_control(struct drm_device
*dev
, void *data
,
978 struct drm_file
*file_priv
);
979 extern irqreturn_t
drm_irq_handler(DRM_IRQ_ARGS
);
980 extern int drm_irq_uninstall(struct drm_device
*dev
);
981 extern void drm_driver_irq_preinstall(struct drm_device
*dev
);
982 extern void drm_driver_irq_postinstall(struct drm_device
*dev
);
983 extern void drm_driver_irq_uninstall(struct drm_device
*dev
);
985 extern int drm_wait_vblank(struct drm_device
*dev
, void *data
,
986 struct drm_file
*file_priv
);
987 extern int drm_vblank_wait(struct drm_device
*dev
, unsigned int *vbl_seq
);
988 extern void drm_vbl_send_signals(struct drm_device
*dev
);
989 extern void drm_locked_tasklet(struct drm_device
*dev
, void(*func
)(struct drm_device
*));
991 /* AGP/GART support (drm_agpsupport.h) */
992 extern struct drm_agp_head
*drm_agp_init(struct drm_device
*dev
);
993 extern int drm_agp_acquire(struct drm_device
*dev
);
994 extern int drm_agp_acquire_ioctl(struct drm_device
*dev
, void *data
,
995 struct drm_file
*file_priv
);
996 extern int drm_agp_release(struct drm_device
*dev
);
997 extern int drm_agp_release_ioctl(struct drm_device
*dev
, void *data
,
998 struct drm_file
*file_priv
);
999 extern int drm_agp_enable(struct drm_device
*dev
, struct drm_agp_mode mode
);
1000 extern int drm_agp_enable_ioctl(struct drm_device
*dev
, void *data
,
1001 struct drm_file
*file_priv
);
1002 extern int drm_agp_info(struct drm_device
*dev
, struct drm_agp_info
*info
);
1003 extern int drm_agp_info_ioctl(struct drm_device
*dev
, void *data
,
1004 struct drm_file
*file_priv
);
1005 extern int drm_agp_alloc(struct drm_device
*dev
, struct drm_agp_buffer
*request
);
1006 extern int drm_agp_alloc_ioctl(struct drm_device
*dev
, void *data
,
1007 struct drm_file
*file_priv
);
1008 extern int drm_agp_free(struct drm_device
*dev
, struct drm_agp_buffer
*request
);
1009 extern int drm_agp_free_ioctl(struct drm_device
*dev
, void *data
,
1010 struct drm_file
*file_priv
);
1011 extern int drm_agp_unbind(struct drm_device
*dev
, struct drm_agp_binding
*request
);
1012 extern int drm_agp_unbind_ioctl(struct drm_device
*dev
, void *data
,
1013 struct drm_file
*file_priv
);
1014 extern int drm_agp_bind(struct drm_device
*dev
, struct drm_agp_binding
*request
);
1015 extern int drm_agp_bind_ioctl(struct drm_device
*dev
, void *data
,
1016 struct drm_file
*file_priv
);
1017 extern DRM_AGP_MEM
*drm_agp_allocate_memory(struct agp_bridge_data
*bridge
, size_t pages
, u32 type
);
1018 extern int drm_agp_free_memory(DRM_AGP_MEM
* handle
);
1019 extern int drm_agp_bind_memory(DRM_AGP_MEM
* handle
, off_t start
);
1020 extern int drm_agp_unbind_memory(DRM_AGP_MEM
* handle
);
1022 /* Stub support (drm_stub.h) */
1023 extern int drm_get_dev(struct pci_dev
*pdev
, const struct pci_device_id
*ent
,
1024 struct drm_driver
*driver
);
1025 extern int drm_put_dev(struct drm_device
*dev
);
1026 extern int drm_put_head(struct drm_head
*head
);
1027 extern unsigned int drm_debug
;
1028 extern unsigned int drm_cards_limit
;
1029 extern struct drm_head
**drm_heads
;
1030 extern struct class *drm_class
;
1031 extern struct proc_dir_entry
*drm_proc_root
;
1033 extern drm_local_map_t
*drm_getsarea(struct drm_device
*dev
);
1035 /* Proc support (drm_proc.h) */
1036 extern int drm_proc_init(struct drm_device
*dev
,
1038 struct proc_dir_entry
*root
,
1039 struct proc_dir_entry
**dev_root
);
1040 extern int drm_proc_cleanup(int minor
,
1041 struct proc_dir_entry
*root
,
1042 struct proc_dir_entry
*dev_root
);
1044 /* Scatter Gather Support (drm_scatter.h) */
1045 extern void drm_sg_cleanup(struct drm_sg_mem
* entry
);
1046 extern int drm_sg_alloc_ioctl(struct drm_device
*dev
, void *data
,
1047 struct drm_file
*file_priv
);
1048 extern int drm_sg_alloc(struct drm_device
*dev
, struct drm_scatter_gather
* request
);
1049 extern int drm_sg_free(struct drm_device
*dev
, void *data
,
1050 struct drm_file
*file_priv
);
1052 /* ATI PCIGART support (ati_pcigart.h) */
1053 extern int drm_ati_pcigart_init(struct drm_device
*dev
,
1054 struct drm_ati_pcigart_info
* gart_info
);
1055 extern int drm_ati_pcigart_cleanup(struct drm_device
*dev
,
1056 struct drm_ati_pcigart_info
* gart_info
);
1058 extern drm_dma_handle_t
*drm_pci_alloc(struct drm_device
*dev
, size_t size
,
1059 size_t align
, dma_addr_t maxaddr
);
1060 extern void __drm_pci_free(struct drm_device
*dev
, drm_dma_handle_t
* dmah
);
1061 extern void drm_pci_free(struct drm_device
*dev
, drm_dma_handle_t
* dmah
);
1063 /* sysfs support (drm_sysfs.c) */
1064 extern struct class *drm_sysfs_create(struct module
*owner
, char *name
);
1065 extern void drm_sysfs_destroy(struct class *cs
);
1066 extern struct class_device
*drm_sysfs_device_add(struct class *cs
,
1067 struct drm_head
*head
);
1068 extern void drm_sysfs_device_remove(struct class_device
*class_dev
);
1071 * Basic memory manager support (drm_mm.c)
1073 extern struct drm_mm_node
*drm_mm_get_block(struct drm_mm_node
* parent
,
1075 unsigned alignment
);
1076 extern void drm_mm_put_block(struct drm_mm_node
* cur
);
1077 extern struct drm_mm_node
*drm_mm_search_free(const struct drm_mm
*mm
, unsigned long size
,
1078 unsigned alignment
, int best_match
);
1079 extern int drm_mm_init(struct drm_mm
*mm
, unsigned long start
, unsigned long size
);
1080 extern void drm_mm_takedown(struct drm_mm
*mm
);
1081 extern int drm_mm_clean(struct drm_mm
*mm
);
1082 extern unsigned long drm_mm_tail_space(struct drm_mm
*mm
);
1083 extern int drm_mm_remove_space_from_tail(struct drm_mm
*mm
, unsigned long size
);
1084 extern int drm_mm_add_space_to_tail(struct drm_mm
*mm
, unsigned long size
);
1086 extern void drm_core_ioremap(struct drm_map
*map
, struct drm_device
*dev
);
1087 extern void drm_core_ioremapfree(struct drm_map
*map
, struct drm_device
*dev
);
1089 static __inline__
struct drm_map
*drm_core_findmap(struct drm_device
*dev
,
1092 struct drm_map_list
*_entry
;
1093 list_for_each_entry(_entry
, &dev
->maplist
, head
)
1094 if (_entry
->user_token
== token
)
1099 static __inline__
int drm_device_is_agp(struct drm_device
*dev
)
1101 if (dev
->driver
->device_is_agp
!= NULL
) {
1102 int err
= (*dev
->driver
->device_is_agp
) (dev
);
1109 return pci_find_capability(dev
->pdev
, PCI_CAP_ID_AGP
);
1112 static __inline__
int drm_device_is_pcie(struct drm_device
*dev
)
1114 return pci_find_capability(dev
->pdev
, PCI_CAP_ID_EXP
);
1117 static __inline__
void drm_core_dropmap(struct drm_map
*map
)
1121 #ifndef DEBUG_MEMORY
1122 /** Wrapper around kmalloc() */
1123 static __inline__
void *drm_alloc(size_t size
, int area
)
1125 return kmalloc(size
, GFP_KERNEL
);
1128 /** Wrapper around kfree() */
1129 static __inline__
void drm_free(void *pt
, size_t size
, int area
)
1134 /** Wrapper around kcalloc() */
1135 static __inline__
void *drm_calloc(size_t nmemb
, size_t size
, int area
)
1137 return kcalloc(nmemb
, size
, GFP_KERNEL
);
1140 extern void *drm_alloc(size_t size
, int area
);
1141 extern void drm_free(void *pt
, size_t size
, int area
);
1142 extern void *drm_calloc(size_t nmemb
, size_t size
, int area
);
1147 extern unsigned long drm_core_get_map_ofs(struct drm_map
* map
);
1148 extern unsigned long drm_core_get_reg_ofs(struct drm_device
*dev
);
1150 #endif /* __KERNEL__ */