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 #define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE)))
79 #define __OS_HAS_MTRR (defined(CONFIG_MTRR))
81 #include "drm_os_linux.h"
82 #include "drm_hashtab.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
100 #define DRIVER_IRQ_VBL2 0x800
102 /***********************************************************************/
103 /** \name Begin the DRM... */
106 #define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then
107 also include looping detection. */
109 #define DRM_MAGIC_HASH_ORDER 4 /**< Size of key hash table. Must be power of 2. */
110 #define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */
111 #define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */
112 #define DRM_LOOPING_LIMIT 5000000
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
140 #define DRM_MEM_MM 22
141 #define DRM_MEM_HASHTAB 23
143 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
144 #define DRM_MAP_HASH_OFFSET 0x10000000
148 /***********************************************************************/
149 /** \name Macros to make printk easier */
155 * \param fmt printf() like format string.
156 * \param arg arguments
158 #define DRM_ERROR(fmt, arg...) \
159 printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* " fmt , __FUNCTION__ , ##arg)
162 * Memory error output.
164 * \param area memory area where the error occurred.
165 * \param fmt printf() like format string.
166 * \param arg arguments
168 #define DRM_MEM_ERROR(area, fmt, arg...) \
169 printk(KERN_ERR "[" DRM_NAME ":%s:%s] *ERROR* " fmt , __FUNCTION__, \
170 drm_mem_stats[area].name , ##arg)
172 #define DRM_INFO(fmt, arg...) printk(KERN_INFO "[" DRM_NAME "] " fmt , ##arg)
177 * \param fmt printf() like format string.
178 * \param arg arguments
181 #define DRM_DEBUG(fmt, arg...) \
185 "[" DRM_NAME ":%s] " fmt , \
186 __FUNCTION__ , ##arg); \
189 #define DRM_DEBUG(fmt, arg...) do { } while (0)
192 #define DRM_PROC_LIMIT (PAGE_SIZE-80)
194 #define DRM_PROC_PRINT(fmt, arg...) \
195 len += sprintf(&buf[len], fmt , ##arg); \
196 if (len > DRM_PROC_LIMIT) { *eof = 1; return len - offset; }
198 #define DRM_PROC_PRINT_RET(ret, fmt, arg...) \
199 len += sprintf(&buf[len], fmt , ##arg); \
200 if (len > DRM_PROC_LIMIT) { ret; *eof = 1; return len - offset; }
204 /***********************************************************************/
205 /** \name Internal types and structures */
208 #define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x)
210 #define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
211 #define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
212 #define DRM_WAITCOUNT(dev,idx) DRM_BUFCOUNT(&dev->queuelist[idx]->waitlist)
214 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
216 * Get the private SAREA mapping.
218 * \param _dev DRM device.
219 * \param _ctx context number.
220 * \param _map output mapping.
222 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
223 (_map) = (_dev)->context_sareas[_ctx]; \
227 * Test that the hardware lock is held by the caller, returning otherwise.
229 * \param dev DRM device.
230 * \param filp file pointer of the caller.
232 #define LOCK_TEST_WITH_RETURN( dev, filp ) \
234 if ( !_DRM_LOCK_IS_HELD( dev->lock.hw_lock->lock ) || \
235 dev->lock.filp != filp ) { \
236 DRM_ERROR( "%s called without lock held\n", \
243 * Copy and IOCTL return string to user space
245 #define DRM_COPY( name, value ) \
246 len = strlen( value ); \
247 if ( len > name##_len ) len = name##_len; \
248 name##_len = strlen( value ); \
249 if ( len && name ) { \
250 if ( copy_to_user( name, value, len ) ) \
255 * Ioctl function type.
257 * \param inode device inode.
258 * \param filp file pointer.
259 * \param cmd command.
260 * \param arg argument.
262 typedef int drm_ioctl_t(struct inode
*inode
, struct file
*filp
,
263 unsigned int cmd
, unsigned long arg
);
265 typedef int drm_ioctl_compat_t(struct file
*filp
, unsigned int cmd
,
269 #define DRM_MASTER 0x2
270 #define DRM_ROOT_ONLY 0x4
272 typedef struct drm_ioctl_desc
{
277 typedef struct drm_devstate
{
278 pid_t owner
; /**< X server pid holding x_lock */
281 typedef struct drm_magic_entry
{
282 drm_hash_item_t hash_item
;
283 struct list_head head
;
284 struct drm_file
*priv
;
285 struct drm_magic_entry
*next
;
288 typedef struct drm_magic_head
{
289 struct drm_magic_entry
*head
;
290 struct drm_magic_entry
*tail
;
293 typedef struct drm_vma_entry
{
294 struct vm_area_struct
*vma
;
295 struct drm_vma_entry
*next
;
302 typedef struct drm_buf
{
303 int idx
; /**< Index into master buflist */
304 int total
; /**< Buffer size */
305 int order
; /**< log-base-2(total) */
306 int used
; /**< Amount of buffer in use (for DMA) */
307 unsigned long offset
; /**< Byte offset (used internally) */
308 void *address
; /**< Address of buffer */
309 unsigned long bus_address
; /**< Bus address of buffer */
310 struct drm_buf
*next
; /**< Kernel-only: used for free list */
311 __volatile__
int waiting
; /**< On kernel DMA queue */
312 __volatile__
int pending
; /**< On hardware DMA queue */
313 wait_queue_head_t dma_wait
; /**< Processes waiting */
314 struct file
*filp
; /**< Pointer to holding file descr */
315 int context
; /**< Kernel queue for this buffer */
316 int while_locked
; /**< Dispatch this buffer while locked */
324 } list
; /**< Which list we're on */
326 int dev_priv_size
; /**< Size of buffer private storage */
327 void *dev_private
; /**< Per-buffer private storage */
330 /** bufs is one longer than it has to be */
331 typedef struct drm_waitlist
{
332 int count
; /**< Number of possible buffers */
333 drm_buf_t
**bufs
; /**< List of pointers to buffers */
334 drm_buf_t
**rp
; /**< Read pointer */
335 drm_buf_t
**wp
; /**< Write pointer */
336 drm_buf_t
**end
; /**< End pointer */
337 spinlock_t read_lock
;
338 spinlock_t write_lock
;
341 typedef struct drm_freelist
{
342 int initialized
; /**< Freelist in use */
343 atomic_t count
; /**< Number of free buffers */
344 drm_buf_t
*next
; /**< End pointer */
346 wait_queue_head_t waiting
; /**< Processes waiting on free bufs */
347 int low_mark
; /**< Low water mark */
348 int high_mark
; /**< High water mark */
349 atomic_t wfh
; /**< If waiting for high mark */
353 typedef struct drm_dma_handle
{
360 * Buffer entry. There is one of this for each buffer size order.
362 typedef struct drm_buf_entry
{
363 int buf_size
; /**< size */
364 int buf_count
; /**< number of buffers */
365 drm_buf_t
*buflist
; /**< buffer list */
368 drm_dma_handle_t
**seglist
;
370 drm_freelist_t freelist
;
373 /** File private data */
374 typedef struct drm_file
{
381 unsigned long ioctl_count
;
382 struct drm_file
*next
;
383 struct drm_file
*prev
;
384 struct drm_head
*head
;
385 int remove_auth_on_close
;
386 unsigned long lock_count
;
391 typedef struct drm_queue
{
392 atomic_t use_count
; /**< Outstanding uses (+1) */
393 atomic_t finalization
; /**< Finalization in progress */
394 atomic_t block_count
; /**< Count of processes waiting */
395 atomic_t block_read
; /**< Queue blocked for reads */
396 wait_queue_head_t read_queue
; /**< Processes waiting on block_read */
397 atomic_t block_write
; /**< Queue blocked for writes */
398 wait_queue_head_t write_queue
; /**< Processes waiting on block_write */
400 atomic_t total_queued
; /**< Total queued statistic */
401 atomic_t total_flushed
; /**< Total flushes statistic */
402 atomic_t total_locks
; /**< Total locks statistics */
404 drm_ctx_flags_t flags
; /**< Context preserving and 2D-only */
405 drm_waitlist_t waitlist
; /**< Pending buffers */
406 wait_queue_head_t flush_queue
; /**< Processes waiting until flush */
412 typedef struct drm_lock_data
{
413 drm_hw_lock_t
*hw_lock
; /**< Hardware lock */
414 struct file
*filp
; /**< File descr of lock holder (0=kernel) */
415 wait_queue_head_t lock_queue
; /**< Queue of blocked processes */
416 unsigned long lock_time
; /**< Time of last lock in jiffies */
422 typedef struct drm_device_dma
{
424 drm_buf_entry_t bufs
[DRM_MAX_ORDER
+ 1]; /**< buffers, grouped by their size order */
425 int buf_count
; /**< total number of buffers */
426 drm_buf_t
**buflist
; /**< Vector of pointers into drm_device_dma::bufs */
428 int page_count
; /**< number of pages */
429 unsigned long *pagelist
; /**< page list */
430 unsigned long byte_count
;
432 _DRM_DMA_USE_AGP
= 0x01,
433 _DRM_DMA_USE_SG
= 0x02,
434 _DRM_DMA_USE_FB
= 0x04,
435 _DRM_DMA_USE_PCI_RO
= 0x08
441 * AGP memory entry. Stored as a doubly linked list.
443 typedef struct drm_agp_mem
{
444 unsigned long handle
; /**< handle */
446 unsigned long bound
; /**< address */
448 struct drm_agp_mem
*prev
; /**< previous entry */
449 struct drm_agp_mem
*next
; /**< next entry */
455 * \sa drm_agp_init() and drm_device::agp.
457 typedef struct drm_agp_head
{
458 DRM_AGP_KERN agp_info
; /**< AGP device information */
459 drm_agp_mem_t
*memory
; /**< memory entries */
460 unsigned long mode
; /**< AGP mode */
461 struct agp_bridge_data
*bridge
;
462 int enabled
; /**< whether the AGP bus as been enabled */
463 int acquired
; /**< whether the AGP device has been acquired */
466 int cant_use_aperture
;
467 unsigned long page_mask
;
471 * Scatter-gather memory.
473 typedef struct drm_sg_mem
{
474 unsigned long handle
;
477 struct page
**pagelist
;
481 typedef struct drm_sigdata
{
489 typedef struct drm_map_list
{
490 struct list_head head
; /**< list head */
491 drm_hash_item_t hash
;
492 drm_map_t
*map
; /**< mapping */
493 unsigned int user_token
;
496 typedef drm_map_t drm_local_map_t
;
499 * Context handle list
501 typedef struct drm_ctx_list
{
502 struct list_head head
; /**< list head */
503 drm_context_t handle
; /**< context handle */
504 drm_file_t
*tag
; /**< associated fd private data */
507 typedef struct drm_vbl_sig
{
508 struct list_head head
;
509 unsigned int sequence
;
511 struct task_struct
*task
;
514 /* location of GART table */
515 #define DRM_ATI_GART_MAIN 1
516 #define DRM_ATI_GART_FB 2
518 typedef struct ati_pcigart_info
{
519 int gart_table_location
;
523 drm_local_map_t mapping
;
524 } drm_ati_pcigart_info
;
527 * Generic memory manager structs
529 typedef struct drm_mm_node
{
530 struct list_head fl_entry
;
531 struct list_head ml_entry
;
539 typedef struct drm_mm
{
540 struct list_head fl_entry
;
541 struct list_head ml_entry
;
545 * DRM driver structure. This structure represent the common code for
546 * a family of cards. There will one drm_device for each card present
552 int (*load
) (struct drm_device
*, unsigned long flags
);
553 int (*firstopen
) (struct drm_device
*);
554 int (*open
) (struct drm_device
*, drm_file_t
*);
555 void (*preclose
) (struct drm_device
*, struct file
* filp
);
556 void (*postclose
) (struct drm_device
*, drm_file_t
*);
557 void (*lastclose
) (struct drm_device
*);
558 int (*unload
) (struct drm_device
*);
559 int (*dma_ioctl
) (DRM_IOCTL_ARGS
);
560 void (*dma_ready
) (struct drm_device
*);
561 int (*dma_quiescent
) (struct drm_device
*);
562 int (*context_ctor
) (struct drm_device
* dev
, int context
);
563 int (*context_dtor
) (struct drm_device
* dev
, int context
);
564 int (*kernel_context_switch
) (struct drm_device
* dev
, int old
,
566 void (*kernel_context_switch_unlock
) (struct drm_device
* dev
);
567 int (*vblank_wait
) (struct drm_device
* dev
, unsigned int *sequence
);
568 int (*vblank_wait2
) (struct drm_device
* dev
, unsigned int *sequence
);
569 int (*dri_library_name
) (struct drm_device
*dev
, char *buf
);
572 * Called by \c drm_device_is_agp. Typically used to determine if a
573 * card is really attached to AGP or not.
575 * \param dev DRM device handle
578 * One of three values is returned depending on whether or not the
579 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
580 * (return of 1), or may or may not be AGP (return of 2).
582 int (*device_is_agp
) (struct drm_device
* dev
);
584 /* these have to be filled in */
586 irqreturn_t(*irq_handler
) (DRM_IRQ_ARGS
);
587 void (*irq_preinstall
) (struct drm_device
* dev
);
588 void (*irq_postinstall
) (struct drm_device
* dev
);
589 void (*irq_uninstall
) (struct drm_device
* dev
);
590 void (*reclaim_buffers
) (struct drm_device
* dev
, struct file
* filp
);
591 void (*reclaim_buffers_locked
) (struct drm_device
*dev
,
593 unsigned long (*get_map_ofs
) (drm_map_t
* map
);
594 unsigned long (*get_reg_ofs
) (struct drm_device
* dev
);
595 void (*set_version
) (struct drm_device
* dev
, drm_set_version_t
* sv
);
606 drm_ioctl_desc_t
*ioctls
;
608 struct file_operations fops
;
609 struct pci_driver pci_driver
;
613 * DRM head structure. This structure represent a video head on a card
614 * that may contain multiple heads. Embed one per head of these in the
615 * private drm_device structure.
617 typedef struct drm_head
{
618 int minor
; /**< Minor device number */
619 struct drm_device
*dev
;
620 struct proc_dir_entry
*dev_root
; /**< proc directory entry */
621 dev_t device
; /**< Device number for mknod */
622 struct class_device
*dev_class
;
626 * DRM device structure. This structure represent a complete card that
627 * may contain multiple heads.
629 typedef struct drm_device
{
630 char *unique
; /**< Unique identifier: e.g., busid */
631 int unique_len
; /**< Length of unique field */
632 char *devname
; /**< For /proc/interrupts */
633 int if_version
; /**< Highest interface version set */
635 int blocked
; /**< Blocked due to VC switch? */
639 spinlock_t count_lock
; /**< For inuse, drm_device::open_count, drm_device::buf_use */
640 struct mutex struct_mutex
; /**< For others */
643 /** \name Usage Counters */
645 int open_count
; /**< Outstanding files open */
646 atomic_t ioctl_count
; /**< Outstanding IOCTLs pending */
647 atomic_t vma_count
; /**< Outstanding vma areas open */
648 int buf_use
; /**< Buffers in use -- cannot alloc */
649 atomic_t buf_alloc
; /**< Buffer allocation in progress */
652 /** \name Performance counters */
654 unsigned long counters
;
655 drm_stat_type_t types
[15];
659 /** \name Authentication */
661 drm_file_t
*file_first
; /**< file list head */
662 drm_file_t
*file_last
; /**< file list tail */
663 drm_open_hash_t magiclist
; /**< magic hash table */
664 struct list_head magicfree
;
667 /** \name Memory management */
669 drm_map_list_t
*maplist
; /**< Linked list of regions */
670 int map_count
; /**< Number of mappable regions */
671 drm_open_hash_t map_hash
; /**< User token hash table for maps */
673 /** \name Context handle management */
675 drm_ctx_list_t
*ctxlist
; /**< Linked list of context handles */
676 int ctx_count
; /**< Number of context handles */
677 struct mutex ctxlist_mutex
; /**< For ctxlist */
679 drm_map_t
**context_sareas
; /**< per-context SAREA's */
682 drm_vma_entry_t
*vmalist
; /**< List of vmas (for debugging) */
683 drm_lock_data_t lock
; /**< Information on hardware lock */
686 /** \name DMA queues (contexts) */
688 int queue_count
; /**< Number of active DMA queues */
689 int queue_reserved
; /**< Number of reserved DMA queues */
690 int queue_slots
; /**< Actual length of queuelist */
691 drm_queue_t
**queuelist
; /**< Vector of pointers to DMA queues */
692 drm_device_dma_t
*dma
; /**< Optional pointer for DMA support */
695 /** \name Context support */
697 int irq
; /**< Interrupt used by board */
698 int irq_enabled
; /**< True if irq handler is enabled */
699 __volatile__
long context_flag
; /**< Context swapping flag */
700 __volatile__
long interrupt_flag
; /**< Interruption handler flag */
701 __volatile__
long dma_flag
; /**< DMA dispatch flag */
702 struct timer_list timer
; /**< Timer for delaying ctx switch */
703 wait_queue_head_t context_wait
; /**< Processes waiting on ctx switch */
704 int last_checked
; /**< Last context checked for DMA */
705 int last_context
; /**< Last current context */
706 unsigned long last_switch
; /**< jiffies at last context switch */
709 struct work_struct work
;
710 /** \name VBLANK IRQ support */
713 wait_queue_head_t vbl_queue
; /**< VBLANK wait queue */
714 atomic_t vbl_received
;
715 atomic_t vbl_received2
; /**< number of secondary VBLANK interrupts */
717 drm_vbl_sig_t vbl_sigs
; /**< signal list to send on VBLANK */
718 drm_vbl_sig_t vbl_sigs2
; /**< signals to send on secondary VBLANK */
719 unsigned int vbl_pending
;
720 spinlock_t tasklet_lock
; /**< For drm_locked_tasklet */
721 void (*locked_tasklet_func
)(struct drm_device
*dev
);
727 struct fasync_struct
*buf_async
;/**< Processes waiting for SIGIO */
728 wait_queue_head_t buf_readers
; /**< Processes waiting to read */
729 wait_queue_head_t buf_writers
; /**< Processes waiting to ctx switch */
731 drm_agp_head_t
*agp
; /**< AGP data */
733 struct pci_dev
*pdev
; /**< PCI device structure */
734 int pci_vendor
; /**< PCI vendor id */
735 int pci_device
; /**< PCI device id */
737 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 unsigned int agp_buffer_token
;
748 drm_head_t primary
; /**< primary screen head */
750 /** \name Drawable information */
753 unsigned int drw_bitfield_length
;
755 unsigned int drw_info_length
;
756 drm_drawable_info_t
**drw_info
;
760 static __inline__
int drm_core_check_feature(struct drm_device
*dev
,
763 return ((dev
->driver
->driver_features
& feature
) ? 1 : 0);
767 #define drm_get_pci_domain(dev) dev->hose->bus->number
769 #define drm_get_pci_domain(dev) 0
773 static inline int drm_core_has_AGP(struct drm_device
*dev
)
775 return drm_core_check_feature(dev
, DRIVER_USE_AGP
);
778 #define drm_core_has_AGP(dev) (0)
782 static inline int drm_core_has_MTRR(struct drm_device
*dev
)
784 return drm_core_check_feature(dev
, DRIVER_USE_MTRR
);
787 #define DRM_MTRR_WC MTRR_TYPE_WRCOMB
789 static inline int drm_mtrr_add(unsigned long offset
, unsigned long size
,
792 return mtrr_add(offset
, size
, flags
, 1);
795 static inline int drm_mtrr_del(int handle
, unsigned long offset
,
796 unsigned long size
, unsigned int flags
)
798 return mtrr_del(handle
, offset
, size
);
802 #define drm_core_has_MTRR(dev) (0)
804 #define DRM_MTRR_WC 0
806 static inline int drm_mtrr_add(unsigned long offset
, unsigned long size
,
812 static inline int drm_mtrr_del(int handle
, unsigned long offset
,
813 unsigned long size
, unsigned int flags
)
819 /******************************************************************/
820 /** \name Internal function definitions */
823 /* Driver support (drm_drv.h) */
824 extern int drm_init(struct drm_driver
*driver
);
825 extern void drm_exit(struct drm_driver
*driver
);
826 extern int drm_ioctl(struct inode
*inode
, struct file
*filp
,
827 unsigned int cmd
, unsigned long arg
);
828 extern long drm_compat_ioctl(struct file
*filp
,
829 unsigned int cmd
, unsigned long arg
);
830 extern int drm_lastclose(drm_device_t
*dev
);
832 /* Device support (drm_fops.h) */
833 extern int drm_open(struct inode
*inode
, struct file
*filp
);
834 extern int drm_stub_open(struct inode
*inode
, struct file
*filp
);
835 extern int drm_fasync(int fd
, struct file
*filp
, int on
);
836 extern int drm_release(struct inode
*inode
, struct file
*filp
);
838 /* Mapping support (drm_vm.h) */
839 extern int drm_mmap(struct file
*filp
, struct vm_area_struct
*vma
);
840 extern unsigned int drm_poll(struct file
*filp
, struct poll_table_struct
*wait
);
842 /* Memory management support (drm_memory.h) */
843 #include "drm_memory.h"
844 extern void drm_mem_init(void);
845 extern int drm_mem_info(char *buf
, char **start
, off_t offset
,
846 int request
, int *eof
, void *data
);
847 extern void *drm_realloc(void *oldpt
, size_t oldsize
, size_t size
, int area
);
849 extern DRM_AGP_MEM
*drm_alloc_agp(drm_device_t
* dev
, int pages
, u32 type
);
850 extern int drm_free_agp(DRM_AGP_MEM
* handle
, int pages
);
851 extern int drm_bind_agp(DRM_AGP_MEM
* handle
, unsigned int start
);
852 extern int drm_unbind_agp(DRM_AGP_MEM
* handle
);
854 /* Misc. IOCTL support (drm_ioctl.h) */
855 extern int drm_irq_by_busid(struct inode
*inode
, struct file
*filp
,
856 unsigned int cmd
, unsigned long arg
);
857 extern int drm_getunique(struct inode
*inode
, struct file
*filp
,
858 unsigned int cmd
, unsigned long arg
);
859 extern int drm_setunique(struct inode
*inode
, struct file
*filp
,
860 unsigned int cmd
, unsigned long arg
);
861 extern int drm_getmap(struct inode
*inode
, struct file
*filp
,
862 unsigned int cmd
, unsigned long arg
);
863 extern int drm_getclient(struct inode
*inode
, struct file
*filp
,
864 unsigned int cmd
, unsigned long arg
);
865 extern int drm_getstats(struct inode
*inode
, struct file
*filp
,
866 unsigned int cmd
, unsigned long arg
);
867 extern int drm_setversion(struct inode
*inode
, struct file
*filp
,
868 unsigned int cmd
, unsigned long arg
);
869 extern int drm_noop(struct inode
*inode
, struct file
*filp
,
870 unsigned int cmd
, unsigned long arg
);
872 /* Context IOCTL support (drm_context.h) */
873 extern int drm_resctx(struct inode
*inode
, struct file
*filp
,
874 unsigned int cmd
, unsigned long arg
);
875 extern int drm_addctx(struct inode
*inode
, struct file
*filp
,
876 unsigned int cmd
, unsigned long arg
);
877 extern int drm_modctx(struct inode
*inode
, struct file
*filp
,
878 unsigned int cmd
, unsigned long arg
);
879 extern int drm_getctx(struct inode
*inode
, struct file
*filp
,
880 unsigned int cmd
, unsigned long arg
);
881 extern int drm_switchctx(struct inode
*inode
, struct file
*filp
,
882 unsigned int cmd
, unsigned long arg
);
883 extern int drm_newctx(struct inode
*inode
, struct file
*filp
,
884 unsigned int cmd
, unsigned long arg
);
885 extern int drm_rmctx(struct inode
*inode
, struct file
*filp
,
886 unsigned int cmd
, unsigned long arg
);
888 extern int drm_ctxbitmap_init(drm_device_t
* dev
);
889 extern void drm_ctxbitmap_cleanup(drm_device_t
* dev
);
890 extern void drm_ctxbitmap_free(drm_device_t
* dev
, int ctx_handle
);
892 extern int drm_setsareactx(struct inode
*inode
, struct file
*filp
,
893 unsigned int cmd
, unsigned long arg
);
894 extern int drm_getsareactx(struct inode
*inode
, struct file
*filp
,
895 unsigned int cmd
, unsigned long arg
);
897 /* Drawable IOCTL support (drm_drawable.h) */
898 extern int drm_adddraw(struct inode
*inode
, struct file
*filp
,
899 unsigned int cmd
, unsigned long arg
);
900 extern int drm_rmdraw(struct inode
*inode
, struct file
*filp
,
901 unsigned int cmd
, unsigned long arg
);
902 extern int drm_update_drawable_info(struct inode
*inode
, struct file
*filp
,
903 unsigned int cmd
, unsigned long arg
);
904 extern drm_drawable_info_t
*drm_get_drawable_info(drm_device_t
*dev
,
907 /* Authentication IOCTL support (drm_auth.h) */
908 extern int drm_getmagic(struct inode
*inode
, struct file
*filp
,
909 unsigned int cmd
, unsigned long arg
);
910 extern int drm_authmagic(struct inode
*inode
, struct file
*filp
,
911 unsigned int cmd
, unsigned long arg
);
913 /* Locking IOCTL support (drm_lock.h) */
914 extern int drm_lock(struct inode
*inode
, struct file
*filp
,
915 unsigned int cmd
, unsigned long arg
);
916 extern int drm_unlock(struct inode
*inode
, struct file
*filp
,
917 unsigned int cmd
, unsigned long arg
);
918 extern int drm_lock_take(__volatile__
unsigned int *lock
, unsigned int context
);
919 extern int drm_lock_free(drm_device_t
* dev
,
920 __volatile__
unsigned int *lock
, unsigned int context
);
922 /* Buffer management support (drm_bufs.h) */
923 extern int drm_addbufs_agp(drm_device_t
* dev
, drm_buf_desc_t
* request
);
924 extern int drm_addbufs_pci(drm_device_t
* dev
, drm_buf_desc_t
* request
);
925 extern int drm_addmap(drm_device_t
* dev
, unsigned int offset
,
926 unsigned int size
, drm_map_type_t type
,
927 drm_map_flags_t flags
, drm_local_map_t
** map_ptr
);
928 extern int drm_addmap_ioctl(struct inode
*inode
, struct file
*filp
,
929 unsigned int cmd
, unsigned long arg
);
930 extern int drm_rmmap(drm_device_t
* dev
, drm_local_map_t
* map
);
931 extern int drm_rmmap_locked(drm_device_t
* dev
, drm_local_map_t
* map
);
932 extern int drm_rmmap_ioctl(struct inode
*inode
, struct file
*filp
,
933 unsigned int cmd
, unsigned long arg
);
935 extern int drm_order(unsigned long size
);
936 extern int drm_addbufs(struct inode
*inode
, struct file
*filp
,
937 unsigned int cmd
, unsigned long arg
);
938 extern int drm_infobufs(struct inode
*inode
, struct file
*filp
,
939 unsigned int cmd
, unsigned long arg
);
940 extern int drm_markbufs(struct inode
*inode
, struct file
*filp
,
941 unsigned int cmd
, unsigned long arg
);
942 extern int drm_freebufs(struct inode
*inode
, struct file
*filp
,
943 unsigned int cmd
, unsigned long arg
);
944 extern int drm_mapbufs(struct inode
*inode
, struct file
*filp
,
945 unsigned int cmd
, unsigned long arg
);
946 extern unsigned long drm_get_resource_start(drm_device_t
* dev
,
947 unsigned int resource
);
948 extern unsigned long drm_get_resource_len(drm_device_t
* dev
,
949 unsigned int resource
);
951 /* DMA support (drm_dma.h) */
952 extern int drm_dma_setup(drm_device_t
* dev
);
953 extern void drm_dma_takedown(drm_device_t
* dev
);
954 extern void drm_free_buffer(drm_device_t
* dev
, drm_buf_t
* buf
);
955 extern void drm_core_reclaim_buffers(drm_device_t
* dev
, struct file
*filp
);
957 /* IRQ support (drm_irq.h) */
958 extern int drm_control(struct inode
*inode
, struct file
*filp
,
959 unsigned int cmd
, unsigned long arg
);
960 extern irqreturn_t
drm_irq_handler(DRM_IRQ_ARGS
);
961 extern int drm_irq_uninstall(drm_device_t
* dev
);
962 extern void drm_driver_irq_preinstall(drm_device_t
* dev
);
963 extern void drm_driver_irq_postinstall(drm_device_t
* dev
);
964 extern void drm_driver_irq_uninstall(drm_device_t
* dev
);
966 extern int drm_wait_vblank(struct inode
*inode
, struct file
*filp
,
967 unsigned int cmd
, unsigned long arg
);
968 extern int drm_vblank_wait(drm_device_t
* dev
, unsigned int *vbl_seq
);
969 extern void drm_vbl_send_signals(drm_device_t
* dev
);
970 extern void drm_locked_tasklet(drm_device_t
*dev
, void(*func
)(drm_device_t
*));
972 /* AGP/GART support (drm_agpsupport.h) */
973 extern drm_agp_head_t
*drm_agp_init(drm_device_t
* dev
);
974 extern int drm_agp_acquire(drm_device_t
* dev
);
975 extern int drm_agp_acquire_ioctl(struct inode
*inode
, struct file
*filp
,
976 unsigned int cmd
, unsigned long arg
);
977 extern int drm_agp_release(drm_device_t
* dev
);
978 extern int drm_agp_release_ioctl(struct inode
*inode
, struct file
*filp
,
979 unsigned int cmd
, unsigned long arg
);
980 extern int drm_agp_enable(drm_device_t
* dev
, drm_agp_mode_t mode
);
981 extern int drm_agp_enable_ioctl(struct inode
*inode
, struct file
*filp
,
982 unsigned int cmd
, unsigned long arg
);
983 extern int drm_agp_info(drm_device_t
* dev
, drm_agp_info_t
* info
);
984 extern int drm_agp_info_ioctl(struct inode
*inode
, struct file
*filp
,
985 unsigned int cmd
, unsigned long arg
);
986 extern int drm_agp_alloc(drm_device_t
*dev
, drm_agp_buffer_t
*request
);
987 extern int drm_agp_alloc_ioctl(struct inode
*inode
, struct file
*filp
,
988 unsigned int cmd
, unsigned long arg
);
989 extern int drm_agp_free(drm_device_t
*dev
, drm_agp_buffer_t
*request
);
990 extern int drm_agp_free_ioctl(struct inode
*inode
, struct file
*filp
,
991 unsigned int cmd
, unsigned long arg
);
992 extern int drm_agp_unbind(drm_device_t
*dev
, drm_agp_binding_t
*request
);
993 extern int drm_agp_unbind_ioctl(struct inode
*inode
, struct file
*filp
,
994 unsigned int cmd
, unsigned long arg
);
995 extern int drm_agp_bind(drm_device_t
*dev
, drm_agp_binding_t
*request
);
996 extern int drm_agp_bind_ioctl(struct inode
*inode
, struct file
*filp
,
997 unsigned int cmd
, unsigned long arg
);
998 extern DRM_AGP_MEM
*drm_agp_allocate_memory(struct agp_bridge_data
*bridge
,
999 size_t pages
, u32 type
);
1000 extern int drm_agp_free_memory(DRM_AGP_MEM
* handle
);
1001 extern int drm_agp_bind_memory(DRM_AGP_MEM
* handle
, off_t start
);
1002 extern int drm_agp_unbind_memory(DRM_AGP_MEM
* handle
);
1004 /* Stub support (drm_stub.h) */
1005 extern int drm_get_dev(struct pci_dev
*pdev
, const struct pci_device_id
*ent
,
1006 struct drm_driver
*driver
);
1007 extern int drm_put_dev(drm_device_t
* dev
);
1008 extern int drm_put_head(drm_head_t
* head
);
1009 extern unsigned int drm_debug
;
1010 extern unsigned int drm_cards_limit
;
1011 extern drm_head_t
**drm_heads
;
1012 extern struct class *drm_class
;
1013 extern struct proc_dir_entry
*drm_proc_root
;
1015 /* Proc support (drm_proc.h) */
1016 extern int drm_proc_init(drm_device_t
* dev
,
1018 struct proc_dir_entry
*root
,
1019 struct proc_dir_entry
**dev_root
);
1020 extern int drm_proc_cleanup(int minor
,
1021 struct proc_dir_entry
*root
,
1022 struct proc_dir_entry
*dev_root
);
1024 /* Scatter Gather Support (drm_scatter.h) */
1025 extern void drm_sg_cleanup(drm_sg_mem_t
* entry
);
1026 extern int drm_sg_alloc(struct inode
*inode
, struct file
*filp
,
1027 unsigned int cmd
, unsigned long arg
);
1028 extern int drm_sg_free(struct inode
*inode
, struct file
*filp
,
1029 unsigned int cmd
, unsigned long arg
);
1031 /* ATI PCIGART support (ati_pcigart.h) */
1032 extern int drm_ati_pcigart_init(drm_device_t
* dev
,
1033 drm_ati_pcigart_info
* gart_info
);
1034 extern int drm_ati_pcigart_cleanup(drm_device_t
* dev
,
1035 drm_ati_pcigart_info
* gart_info
);
1037 extern drm_dma_handle_t
*drm_pci_alloc(drm_device_t
* dev
, size_t size
,
1038 size_t align
, dma_addr_t maxaddr
);
1039 extern void __drm_pci_free(drm_device_t
* dev
, drm_dma_handle_t
* dmah
);
1040 extern void drm_pci_free(drm_device_t
* dev
, drm_dma_handle_t
* dmah
);
1042 /* sysfs support (drm_sysfs.c) */
1043 extern struct class *drm_sysfs_create(struct module
*owner
, char *name
);
1044 extern void drm_sysfs_destroy(struct class *cs
);
1045 extern struct class_device
*drm_sysfs_device_add(struct class *cs
,
1047 extern void drm_sysfs_device_remove(struct class_device
*class_dev
);
1050 * Basic memory manager support (drm_mm.c)
1052 extern drm_mm_node_t
*drm_mm_get_block(drm_mm_node_t
* parent
,
1054 unsigned alignment
);
1055 void drm_mm_put_block(drm_mm_node_t
* cur
);
1056 extern drm_mm_node_t
*drm_mm_search_free(const drm_mm_t
*mm
, unsigned long size
,
1057 unsigned alignment
, int best_match
);
1058 extern int drm_mm_init(drm_mm_t
*mm
, unsigned long start
, unsigned long size
);
1059 extern void drm_mm_takedown(drm_mm_t
*mm
);
1060 extern int drm_mm_clean(drm_mm_t
*mm
);
1061 extern unsigned long drm_mm_tail_space(drm_mm_t
*mm
);
1062 extern int drm_mm_remove_space_from_tail(drm_mm_t
*mm
, unsigned long size
);
1063 extern int drm_mm_add_space_to_tail(drm_mm_t
*mm
, unsigned long size
);
1065 extern void drm_core_ioremap(struct drm_map
*map
, struct drm_device
*dev
);
1066 extern void drm_core_ioremapfree(struct drm_map
*map
, struct drm_device
*dev
);
1068 static __inline__
struct drm_map
*drm_core_findmap(struct drm_device
*dev
,
1071 drm_map_list_t
*_entry
;
1072 list_for_each_entry(_entry
, &dev
->maplist
->head
, head
)
1073 if (_entry
->user_token
== token
)
1078 static __inline__
int drm_device_is_agp(drm_device_t
* dev
)
1080 if (dev
->driver
->device_is_agp
!= NULL
) {
1081 int err
= (*dev
->driver
->device_is_agp
) (dev
);
1088 return pci_find_capability(dev
->pdev
, PCI_CAP_ID_AGP
);
1091 static __inline__
int drm_device_is_pcie(drm_device_t
* dev
)
1093 return pci_find_capability(dev
->pdev
, PCI_CAP_ID_EXP
);
1096 static __inline__
void drm_core_dropmap(struct drm_map
*map
)
1100 #ifndef DEBUG_MEMORY
1101 /** Wrapper around kmalloc() */
1102 static __inline__
void *drm_alloc(size_t size
, int area
)
1104 return kmalloc(size
, GFP_KERNEL
);
1107 /** Wrapper around kfree() */
1108 static __inline__
void drm_free(void *pt
, size_t size
, int area
)
1113 /** Wrapper around kcalloc() */
1114 static __inline__
void *drm_calloc(size_t nmemb
, size_t size
, int area
)
1116 return kcalloc(nmemb
, size
, GFP_KERNEL
);
1119 extern void *drm_alloc(size_t size
, int area
);
1120 extern void drm_free(void *pt
, size_t size
, int area
);
1121 extern void *drm_calloc(size_t nmemb
, size_t size
, int area
);
1126 extern unsigned long drm_core_get_map_ofs(drm_map_t
* map
);
1127 extern unsigned long drm_core_get_reg_ofs(struct drm_device
*dev
);
1129 #endif /* __KERNEL__ */