3 * Private header for Direct Rendering Manager
5 * \author Rickard E. (Rik) Faith <faith@valinux.com>
6 * \author Gareth Hughes <gareth@valinux.com>
10 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
11 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
12 * All rights reserved.
14 * Permission is hereby granted, free of charge, to any person obtaining a
15 * copy of this software and associated documentation files (the "Software"),
16 * to deal in the Software without restriction, including without limitation
17 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
18 * and/or sell copies of the Software, and to permit persons to whom the
19 * Software is furnished to do so, subject to the following conditions:
21 * The above copyright notice and this permission notice (including the next
22 * paragraph) shall be included in all copies or substantial portions of the
25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
26 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
27 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
28 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
29 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
30 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
31 * OTHER DEALINGS IN THE SOFTWARE.
37 /* If you want the memory alloc debug functionality, change define below */
38 /* #define DEBUG_MEMORY */
42 /* add include of current.h so that "current" is defined
43 * before static inline funcs in wait.h. Doing this so we
44 * can build the DRM (part of PI DRI). 4/21/2000 S + B */
45 #include <asm/current.h>
46 #endif /* __alpha__ */
47 #include <linux/config.h>
48 #include <linux/module.h>
49 #include <linux/kernel.h>
50 #include <linux/miscdevice.h>
52 #include <linux/proc_fs.h>
53 #include <linux/init.h>
54 #include <linux/file.h>
55 #include <linux/pci.h>
56 #include <linux/jiffies.h>
57 #include <linux/smp_lock.h> /* For (un)lock_kernel */
59 #include <linux/cdev.h>
60 #include <linux/mutex.h>
61 #if defined(__alpha__) || defined(__powerpc__)
62 #include <asm/pgtable.h> /* For pte_wrprotect */
66 #include <asm/uaccess.h>
70 #if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
71 #include <linux/types.h>
72 #include <linux/agp_backend.h>
74 #include <linux/workqueue.h>
75 #include <linux/poll.h>
76 #include <asm/pgalloc.h>
79 #define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE)))
80 #define __OS_HAS_MTRR (defined(CONFIG_MTRR))
82 #include "drm_os_linux.h"
84 /***********************************************************************/
85 /** \name DRM template customization defaults */
88 /* driver capabilities and requirements mask */
89 #define DRIVER_USE_AGP 0x1
90 #define DRIVER_REQUIRE_AGP 0x2
91 #define DRIVER_USE_MTRR 0x4
92 #define DRIVER_PCI_DMA 0x8
93 #define DRIVER_SG 0x10
94 #define DRIVER_HAVE_DMA 0x20
95 #define DRIVER_HAVE_IRQ 0x40
96 #define DRIVER_IRQ_SHARED 0x80
97 #define DRIVER_IRQ_VBL 0x100
98 #define DRIVER_DMA_QUEUE 0x200
99 #define DRIVER_FB_DMA 0x400
101 /***********************************************************************/
102 /** \name Begin the DRM... */
105 #define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then
106 also include looping detection. */
108 #define DRM_HASH_SIZE 16 /**< Size of key hash table. Must be power of 2. */
109 #define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */
110 #define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */
111 #define DRM_LOOPING_LIMIT 5000000
112 #define DRM_TIME_SLICE (HZ/20) /**< Time slice for GLXContexts */
113 #define DRM_LOCK_SLICE 1 /**< Time slice for lock, in jiffies */
115 #define DRM_FLAG_DEBUG 0x01
117 #define DRM_MEM_DMA 0
118 #define DRM_MEM_SAREA 1
119 #define DRM_MEM_DRIVER 2
120 #define DRM_MEM_MAGIC 3
121 #define DRM_MEM_IOCTLS 4
122 #define DRM_MEM_MAPS 5
123 #define DRM_MEM_VMAS 6
124 #define DRM_MEM_BUFS 7
125 #define DRM_MEM_SEGS 8
126 #define DRM_MEM_PAGES 9
127 #define DRM_MEM_FILES 10
128 #define DRM_MEM_QUEUES 11
129 #define DRM_MEM_CMDS 12
130 #define DRM_MEM_MAPPINGS 13
131 #define DRM_MEM_BUFLISTS 14
132 #define DRM_MEM_AGPLISTS 15
133 #define DRM_MEM_TOTALAGP 16
134 #define DRM_MEM_BOUNDAGP 17
135 #define DRM_MEM_CTXBITMAP 18
136 #define DRM_MEM_STUB 19
137 #define DRM_MEM_SGLISTS 20
138 #define DRM_MEM_CTXLIST 21
140 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
144 /***********************************************************************/
145 /** \name Backward compatibility section */
148 #define DRM_RPR_ARG(vma) vma,
150 #define VM_OFFSET(vma) ((vma)->vm_pgoff << PAGE_SHIFT)
154 /***********************************************************************/
155 /** \name Macros to make printk easier */
161 * \param fmt printf() like format string.
162 * \param arg arguments
164 #define DRM_ERROR(fmt, arg...) \
165 printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* " fmt , __FUNCTION__ , ##arg)
168 * Memory error output.
170 * \param area memory area where the error occurred.
171 * \param fmt printf() like format string.
172 * \param arg arguments
174 #define DRM_MEM_ERROR(area, fmt, arg...) \
175 printk(KERN_ERR "[" DRM_NAME ":%s:%s] *ERROR* " fmt , __FUNCTION__, \
176 drm_mem_stats[area].name , ##arg)
178 #define DRM_INFO(fmt, arg...) printk(KERN_INFO "[" DRM_NAME "] " fmt , ##arg)
183 * \param fmt printf() like format string.
184 * \param arg arguments
187 #define DRM_DEBUG(fmt, arg...) \
191 "[" DRM_NAME ":%s] " fmt , \
192 __FUNCTION__ , ##arg); \
195 #define DRM_DEBUG(fmt, arg...) do { } while (0)
198 #define DRM_PROC_LIMIT (PAGE_SIZE-80)
200 #define DRM_PROC_PRINT(fmt, arg...) \
201 len += sprintf(&buf[len], fmt , ##arg); \
202 if (len > DRM_PROC_LIMIT) { *eof = 1; return len - offset; }
204 #define DRM_PROC_PRINT_RET(ret, fmt, arg...) \
205 len += sprintf(&buf[len], fmt , ##arg); \
206 if (len > DRM_PROC_LIMIT) { ret; *eof = 1; return len - offset; }
210 /***********************************************************************/
211 /** \name Internal types and structures */
214 #define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x)
215 #define DRM_MIN(a,b) min(a,b)
216 #define DRM_MAX(a,b) max(a,b)
218 #define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
219 #define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
220 #define DRM_WAITCOUNT(dev,idx) DRM_BUFCOUNT(&dev->queuelist[idx]->waitlist)
222 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
224 * Get the private SAREA mapping.
226 * \param _dev DRM device.
227 * \param _ctx context number.
228 * \param _map output mapping.
230 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
231 (_map) = (_dev)->context_sareas[_ctx]; \
235 * Test that the hardware lock is held by the caller, returning otherwise.
237 * \param dev DRM device.
238 * \param filp file pointer of the caller.
240 #define LOCK_TEST_WITH_RETURN( dev, filp ) \
242 if ( !_DRM_LOCK_IS_HELD( dev->lock.hw_lock->lock ) || \
243 dev->lock.filp != filp ) { \
244 DRM_ERROR( "%s called without lock held\n", \
251 * Copy and IOCTL return string to user space
253 #define DRM_COPY( name, value ) \
254 len = strlen( value ); \
255 if ( len > name##_len ) len = name##_len; \
256 name##_len = strlen( value ); \
257 if ( len && name ) { \
258 if ( copy_to_user( name, value, len ) ) \
263 * Ioctl function type.
265 * \param inode device inode.
266 * \param filp file pointer.
267 * \param cmd command.
268 * \param arg argument.
270 typedef int drm_ioctl_t(struct inode *inode, struct file *filp,
271 unsigned int cmd, unsigned long arg);
273 typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
277 #define DRM_MASTER 0x2
278 #define DRM_ROOT_ONLY 0x4
280 typedef struct drm_ioctl_desc {
285 typedef struct drm_devstate {
286 pid_t owner; /**< X server pid holding x_lock */
289 typedef struct drm_magic_entry {
291 struct drm_file *priv;
292 struct drm_magic_entry *next;
295 typedef struct drm_magic_head {
296 struct drm_magic_entry *head;
297 struct drm_magic_entry *tail;
300 typedef struct drm_vma_entry {
301 struct vm_area_struct *vma;
302 struct drm_vma_entry *next;
309 typedef struct drm_buf {
310 int idx; /**< Index into master buflist */
311 int total; /**< Buffer size */
312 int order; /**< log-base-2(total) */
313 int used; /**< Amount of buffer in use (for DMA) */
314 unsigned long offset; /**< Byte offset (used internally) */
315 void *address; /**< Address of buffer */
316 unsigned long bus_address; /**< Bus address of buffer */
317 struct drm_buf *next; /**< Kernel-only: used for free list */
318 __volatile__ int waiting; /**< On kernel DMA queue */
319 __volatile__ int pending; /**< On hardware DMA queue */
320 wait_queue_head_t dma_wait; /**< Processes waiting */
321 struct file *filp; /**< Pointer to holding file descr */
322 int context; /**< Kernel queue for this buffer */
323 int while_locked; /**< Dispatch this buffer while locked */
331 } list; /**< Which list we're on */
333 int dev_priv_size; /**< Size of buffer private storage */
334 void *dev_private; /**< Per-buffer private storage */
337 /** bufs is one longer than it has to be */
338 typedef struct drm_waitlist {
339 int count; /**< Number of possible buffers */
340 drm_buf_t **bufs; /**< List of pointers to buffers */
341 drm_buf_t **rp; /**< Read pointer */
342 drm_buf_t **wp; /**< Write pointer */
343 drm_buf_t **end; /**< End pointer */
344 spinlock_t read_lock;
345 spinlock_t write_lock;
348 typedef struct drm_freelist {
349 int initialized; /**< Freelist in use */
350 atomic_t count; /**< Number of free buffers */
351 drm_buf_t *next; /**< End pointer */
353 wait_queue_head_t waiting; /**< Processes waiting on free bufs */
354 int low_mark; /**< Low water mark */
355 int high_mark; /**< High water mark */
356 atomic_t wfh; /**< If waiting for high mark */
361 * Buffer entry. There is one of this for each buffer size order.
363 typedef struct drm_buf_entry {
364 int buf_size; /**< size */
365 int buf_count; /**< number of buffers */
366 drm_buf_t *buflist; /**< buffer list */
369 unsigned long *seglist;
371 drm_freelist_t freelist;
374 /** File private data */
375 typedef struct drm_file {
382 unsigned long ioctl_count;
383 struct drm_file *next;
384 struct drm_file *prev;
385 struct drm_head *head;
386 int remove_auth_on_close;
387 unsigned long lock_count;
392 typedef struct drm_queue {
393 atomic_t use_count; /**< Outstanding uses (+1) */
394 atomic_t finalization; /**< Finalization in progress */
395 atomic_t block_count; /**< Count of processes waiting */
396 atomic_t block_read; /**< Queue blocked for reads */
397 wait_queue_head_t read_queue; /**< Processes waiting on block_read */
398 atomic_t block_write; /**< Queue blocked for writes */
399 wait_queue_head_t write_queue; /**< Processes waiting on block_write */
401 atomic_t total_queued; /**< Total queued statistic */
402 atomic_t total_flushed; /**< Total flushes statistic */
403 atomic_t total_locks; /**< Total locks statistics */
405 drm_ctx_flags_t flags; /**< Context preserving and 2D-only */
406 drm_waitlist_t waitlist; /**< Pending buffers */
407 wait_queue_head_t flush_queue; /**< Processes waiting until flush */
413 typedef struct drm_lock_data {
414 drm_hw_lock_t *hw_lock; /**< Hardware lock */
415 struct file *filp; /**< File descr of lock holder (0=kernel) */
416 wait_queue_head_t lock_queue; /**< Queue of blocked processes */
417 unsigned long lock_time; /**< Time of last lock in jiffies */
423 typedef struct drm_device_dma {
425 drm_buf_entry_t bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */
426 int buf_count; /**< total number of buffers */
427 drm_buf_t **buflist; /**< Vector of pointers into drm_device_dma::bufs */
429 int page_count; /**< number of pages */
430 unsigned long *pagelist; /**< page list */
431 unsigned long byte_count;
433 _DRM_DMA_USE_AGP = 0x01,
434 _DRM_DMA_USE_SG = 0x02,
435 _DRM_DMA_USE_FB = 0x04
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 {
486 typedef struct drm_dma_handle {
495 typedef struct drm_map_list {
496 struct list_head head; /**< list head */
497 drm_map_t *map; /**< mapping */
498 unsigned int user_token;
501 typedef drm_map_t drm_local_map_t;
504 * Context handle list
506 typedef struct drm_ctx_list {
507 struct list_head head; /**< list head */
508 drm_context_t handle; /**< context handle */
509 drm_file_t *tag; /**< associated fd private data */
512 typedef struct drm_vbl_sig {
513 struct list_head head;
514 unsigned int sequence;
516 struct task_struct *task;
519 /* location of GART table */
520 #define DRM_ATI_GART_MAIN 1
521 #define DRM_ATI_GART_FB 2
523 typedef struct ati_pcigart_info {
524 int gart_table_location;
528 drm_local_map_t mapping;
529 } drm_ati_pcigart_info;
532 * DRM driver structure. This structure represent the common code for
533 * a family of cards. There will one drm_device for each card present
539 int (*load) (struct drm_device *, unsigned long flags);
540 int (*firstopen) (struct drm_device *);
541 int (*open) (struct drm_device *, drm_file_t *);
542 void (*preclose) (struct drm_device *, struct file * filp);
543 void (*postclose) (struct drm_device *, drm_file_t *);
544 void (*lastclose) (struct drm_device *);
545 int (*unload) (struct drm_device *);
546 int (*dma_ioctl) (DRM_IOCTL_ARGS);
547 void (*dma_ready) (struct drm_device *);
548 int (*dma_quiescent) (struct drm_device *);
549 int (*context_ctor) (struct drm_device * dev, int context);
550 int (*context_dtor) (struct drm_device * dev, int context);
551 int (*kernel_context_switch) (struct drm_device * dev, int old,
553 void (*kernel_context_switch_unlock) (struct drm_device * dev,
555 int (*vblank_wait) (struct drm_device * dev, unsigned int *sequence);
556 int (*dri_library_name) (struct drm_device *dev, char *buf);
559 * Called by \c drm_device_is_agp. Typically used to determine if a
560 * card is really attached to AGP or not.
562 * \param dev DRM device handle
565 * One of three values is returned depending on whether or not the
566 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
567 * (return of 1), or may or may not be AGP (return of 2).
569 int (*device_is_agp) (struct drm_device * dev);
571 /* these have to be filled in */
573 irqreturn_t(*irq_handler) (DRM_IRQ_ARGS);
574 void (*irq_preinstall) (struct drm_device * dev);
575 void (*irq_postinstall) (struct drm_device * dev);
576 void (*irq_uninstall) (struct drm_device * dev);
577 void (*reclaim_buffers) (struct drm_device * dev, struct file * filp);
578 void (*reclaim_buffers_locked) (struct drm_device *dev,
580 unsigned long (*get_map_ofs) (drm_map_t * map);
581 unsigned long (*get_reg_ofs) (struct drm_device * dev);
582 void (*set_version) (struct drm_device * dev, drm_set_version_t * sv);
593 drm_ioctl_desc_t *ioctls;
595 struct file_operations fops;
596 struct pci_driver pci_driver;
600 * DRM head structure. This structure represent a video head on a card
601 * that may contain multiple heads. Embed one per head of these in the
602 * private drm_device structure.
604 typedef struct drm_head {
605 int minor; /**< Minor device number */
606 struct drm_device *dev;
607 struct proc_dir_entry *dev_root; /**< proc directory entry */
608 dev_t device; /**< Device number for mknod */
609 struct class_device *dev_class;
613 * DRM device structure. This structure represent a complete card that
614 * may contain multiple heads.
616 typedef struct drm_device {
617 char *unique; /**< Unique identifier: e.g., busid */
618 int unique_len; /**< Length of unique field */
619 char *devname; /**< For /proc/interrupts */
620 int if_version; /**< Highest interface version set */
622 int blocked; /**< Blocked due to VC switch? */
626 spinlock_t count_lock; /**< For inuse, drm_device::open_count, drm_device::buf_use */
627 struct mutex struct_mutex; /**< For others */
630 /** \name Usage Counters */
632 int open_count; /**< Outstanding files open */
633 atomic_t ioctl_count; /**< Outstanding IOCTLs pending */
634 atomic_t vma_count; /**< Outstanding vma areas open */
635 int buf_use; /**< Buffers in use -- cannot alloc */
636 atomic_t buf_alloc; /**< Buffer allocation in progress */
639 /** \name Performance counters */
641 unsigned long counters;
642 drm_stat_type_t types[15];
646 /** \name Authentication */
648 drm_file_t *file_first; /**< file list head */
649 drm_file_t *file_last; /**< file list tail */
650 drm_magic_head_t magiclist[DRM_HASH_SIZE]; /**< magic hash table */
653 /** \name Memory management */
655 drm_map_list_t *maplist; /**< Linked list of regions */
656 int map_count; /**< Number of mappable regions */
658 /** \name Context handle management */
660 drm_ctx_list_t *ctxlist; /**< Linked list of context handles */
661 int ctx_count; /**< Number of context handles */
662 struct mutex ctxlist_mutex; /**< For ctxlist */
664 drm_map_t **context_sareas; /**< per-context SAREA's */
667 drm_vma_entry_t *vmalist; /**< List of vmas (for debugging) */
668 drm_lock_data_t lock; /**< Information on hardware lock */
671 /** \name DMA queues (contexts) */
673 int queue_count; /**< Number of active DMA queues */
674 int queue_reserved; /**< Number of reserved DMA queues */
675 int queue_slots; /**< Actual length of queuelist */
676 drm_queue_t **queuelist; /**< Vector of pointers to DMA queues */
677 drm_device_dma_t *dma; /**< Optional pointer for DMA support */
680 /** \name Context support */
682 int irq; /**< Interrupt used by board */
683 int irq_enabled; /**< True if irq handler is enabled */
684 __volatile__ long context_flag; /**< Context swapping flag */
685 __volatile__ long interrupt_flag; /**< Interruption handler flag */
686 __volatile__ long dma_flag; /**< DMA dispatch flag */
687 struct timer_list timer; /**< Timer for delaying ctx switch */
688 wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */
689 int last_checked; /**< Last context checked for DMA */
690 int last_context; /**< Last current context */
691 unsigned long last_switch; /**< jiffies at last context switch */
694 struct work_struct work;
695 /** \name VBLANK IRQ support */
698 wait_queue_head_t vbl_queue; /**< VBLANK wait queue */
699 atomic_t vbl_received;
701 drm_vbl_sig_t vbl_sigs; /**< signal list to send on VBLANK */
702 unsigned int vbl_pending;
708 struct fasync_struct *buf_async;/**< Processes waiting for SIGIO */
709 wait_queue_head_t buf_readers; /**< Processes waiting to read */
710 wait_queue_head_t buf_writers; /**< Processes waiting to ctx switch */
712 drm_agp_head_t *agp; /**< AGP data */
714 struct pci_dev *pdev; /**< PCI device structure */
715 int pci_domain; /**< PCI bus domain number */
716 int pci_bus; /**< PCI bus number */
717 int pci_slot; /**< PCI slot number */
718 int pci_func; /**< PCI function number */
720 struct pci_controller *hose;
722 drm_sg_mem_t *sg; /**< Scatter gather memory */
723 unsigned long *ctx_bitmap; /**< context bitmap */
724 void *dev_private; /**< device private data */
725 drm_sigdata_t sigdata; /**< For block_all_signals */
728 struct drm_driver *driver;
729 drm_local_map_t *agp_buffer_map;
730 unsigned int agp_buffer_token;
731 drm_head_t primary; /**< primary screen head */
734 static __inline__ int drm_core_check_feature(struct drm_device *dev,
737 return ((dev->driver->driver_features & feature) ? 1 : 0);
741 static inline int drm_core_has_AGP(struct drm_device *dev)
743 return drm_core_check_feature(dev, DRIVER_USE_AGP);
746 #define drm_core_has_AGP(dev) (0)
750 static inline int drm_core_has_MTRR(struct drm_device *dev)
752 return drm_core_check_feature(dev, DRIVER_USE_MTRR);
755 #define DRM_MTRR_WC MTRR_TYPE_WRCOMB
757 static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
760 return mtrr_add(offset, size, flags, 1);
763 static inline int drm_mtrr_del(int handle, unsigned long offset,
764 unsigned long size, unsigned int flags)
766 return mtrr_del(handle, offset, size);
770 #define drm_core_has_MTRR(dev) (0)
772 #define DRM_MTRR_WC 0
774 static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
780 static inline int drm_mtrr_del(int handle, unsigned long offset,
781 unsigned long size, unsigned int flags)
787 /******************************************************************/
788 /** \name Internal function definitions */
791 /* Driver support (drm_drv.h) */
792 extern int drm_init(struct drm_driver *driver);
793 extern void drm_exit(struct drm_driver *driver);
794 extern int drm_ioctl(struct inode *inode, struct file *filp,
795 unsigned int cmd, unsigned long arg);
796 extern long drm_compat_ioctl(struct file *filp,
797 unsigned int cmd, unsigned long arg);
798 extern int drm_lastclose(drm_device_t *dev);
800 /* Device support (drm_fops.h) */
801 extern int drm_open(struct inode *inode, struct file *filp);
802 extern int drm_stub_open(struct inode *inode, struct file *filp);
803 extern int drm_fasync(int fd, struct file *filp, int on);
804 extern int drm_release(struct inode *inode, struct file *filp);
806 /* Mapping support (drm_vm.h) */
807 extern int drm_mmap(struct file *filp, struct vm_area_struct *vma);
808 extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait);
810 /* Memory management support (drm_memory.h) */
811 #include "drm_memory.h"
812 extern void drm_mem_init(void);
813 extern int drm_mem_info(char *buf, char **start, off_t offset,
814 int request, int *eof, void *data);
815 extern void *drm_realloc(void *oldpt, size_t oldsize, size_t size, int area);
816 extern unsigned long drm_alloc_pages(int order, int area);
817 extern void drm_free_pages(unsigned long address, int order, int area);
818 extern void *drm_ioremap(unsigned long offset, unsigned long size,
820 extern void *drm_ioremap_nocache(unsigned long offset, unsigned long size,
822 extern void drm_ioremapfree(void *pt, unsigned long size, drm_device_t * dev);
824 extern DRM_AGP_MEM *drm_alloc_agp(drm_device_t * dev, int pages, u32 type);
825 extern int drm_free_agp(DRM_AGP_MEM * handle, int pages);
826 extern int drm_bind_agp(DRM_AGP_MEM * handle, unsigned int start);
827 extern int drm_unbind_agp(DRM_AGP_MEM * handle);
829 /* Misc. IOCTL support (drm_ioctl.h) */
830 extern int drm_irq_by_busid(struct inode *inode, struct file *filp,
831 unsigned int cmd, unsigned long arg);
832 extern int drm_getunique(struct inode *inode, struct file *filp,
833 unsigned int cmd, unsigned long arg);
834 extern int drm_setunique(struct inode *inode, struct file *filp,
835 unsigned int cmd, unsigned long arg);
836 extern int drm_getmap(struct inode *inode, struct file *filp,
837 unsigned int cmd, unsigned long arg);
838 extern int drm_getclient(struct inode *inode, struct file *filp,
839 unsigned int cmd, unsigned long arg);
840 extern int drm_getstats(struct inode *inode, struct file *filp,
841 unsigned int cmd, unsigned long arg);
842 extern int drm_setversion(struct inode *inode, struct file *filp,
843 unsigned int cmd, unsigned long arg);
844 extern int drm_noop(struct inode *inode, struct file *filp,
845 unsigned int cmd, unsigned long arg);
847 /* Context IOCTL support (drm_context.h) */
848 extern int drm_resctx(struct inode *inode, struct file *filp,
849 unsigned int cmd, unsigned long arg);
850 extern int drm_addctx(struct inode *inode, struct file *filp,
851 unsigned int cmd, unsigned long arg);
852 extern int drm_modctx(struct inode *inode, struct file *filp,
853 unsigned int cmd, unsigned long arg);
854 extern int drm_getctx(struct inode *inode, struct file *filp,
855 unsigned int cmd, unsigned long arg);
856 extern int drm_switchctx(struct inode *inode, struct file *filp,
857 unsigned int cmd, unsigned long arg);
858 extern int drm_newctx(struct inode *inode, struct file *filp,
859 unsigned int cmd, unsigned long arg);
860 extern int drm_rmctx(struct inode *inode, struct file *filp,
861 unsigned int cmd, unsigned long arg);
863 extern int drm_ctxbitmap_init(drm_device_t * dev);
864 extern void drm_ctxbitmap_cleanup(drm_device_t * dev);
865 extern void drm_ctxbitmap_free(drm_device_t * dev, int ctx_handle);
867 extern int drm_setsareactx(struct inode *inode, struct file *filp,
868 unsigned int cmd, unsigned long arg);
869 extern int drm_getsareactx(struct inode *inode, struct file *filp,
870 unsigned int cmd, unsigned long arg);
872 /* Drawable IOCTL support (drm_drawable.h) */
873 extern int drm_adddraw(struct inode *inode, struct file *filp,
874 unsigned int cmd, unsigned long arg);
875 extern int drm_rmdraw(struct inode *inode, struct file *filp,
876 unsigned int cmd, unsigned long arg);
878 /* Authentication IOCTL support (drm_auth.h) */
879 extern int drm_getmagic(struct inode *inode, struct file *filp,
880 unsigned int cmd, unsigned long arg);
881 extern int drm_authmagic(struct inode *inode, struct file *filp,
882 unsigned int cmd, unsigned long arg);
884 /* Locking IOCTL support (drm_lock.h) */
885 extern int drm_lock(struct inode *inode, struct file *filp,
886 unsigned int cmd, unsigned long arg);
887 extern int drm_unlock(struct inode *inode, struct file *filp,
888 unsigned int cmd, unsigned long arg);
889 extern int drm_lock_take(__volatile__ unsigned int *lock, unsigned int context);
890 extern int drm_lock_free(drm_device_t * dev,
891 __volatile__ unsigned int *lock, unsigned int context);
893 /* Buffer management support (drm_bufs.h) */
894 extern int drm_addbufs_agp(drm_device_t * dev, drm_buf_desc_t * request);
895 extern int drm_addbufs_pci(drm_device_t * dev, drm_buf_desc_t * request);
896 extern int drm_addbufs_fb(drm_device_t *dev, drm_buf_desc_t *request);
897 extern int drm_addmap(drm_device_t * dev, unsigned int offset,
898 unsigned int size, drm_map_type_t type,
899 drm_map_flags_t flags, drm_local_map_t ** map_ptr);
900 extern int drm_addmap_ioctl(struct inode *inode, struct file *filp,
901 unsigned int cmd, unsigned long arg);
902 extern int drm_rmmap(drm_device_t * dev, drm_local_map_t * map);
903 extern int drm_rmmap_locked(drm_device_t * dev, drm_local_map_t * map);
904 extern int drm_rmmap_ioctl(struct inode *inode, struct file *filp,
905 unsigned int cmd, unsigned long arg);
907 extern int drm_order(unsigned long size);
908 extern int drm_addbufs(struct inode *inode, struct file *filp,
909 unsigned int cmd, unsigned long arg);
910 extern int drm_infobufs(struct inode *inode, struct file *filp,
911 unsigned int cmd, unsigned long arg);
912 extern int drm_markbufs(struct inode *inode, struct file *filp,
913 unsigned int cmd, unsigned long arg);
914 extern int drm_freebufs(struct inode *inode, struct file *filp,
915 unsigned int cmd, unsigned long arg);
916 extern int drm_mapbufs(struct inode *inode, struct file *filp,
917 unsigned int cmd, unsigned long arg);
918 extern unsigned long drm_get_resource_start(drm_device_t * dev,
919 unsigned int resource);
920 extern unsigned long drm_get_resource_len(drm_device_t * dev,
921 unsigned int resource);
923 /* DMA support (drm_dma.h) */
924 extern int drm_dma_setup(drm_device_t * dev);
925 extern void drm_dma_takedown(drm_device_t * dev);
926 extern void drm_free_buffer(drm_device_t * dev, drm_buf_t * buf);
927 extern void drm_core_reclaim_buffers(drm_device_t * dev, struct file *filp);
929 /* IRQ support (drm_irq.h) */
930 extern int drm_control(struct inode *inode, struct file *filp,
931 unsigned int cmd, unsigned long arg);
932 extern irqreturn_t drm_irq_handler(DRM_IRQ_ARGS);
933 extern int drm_irq_uninstall(drm_device_t * dev);
934 extern void drm_driver_irq_preinstall(drm_device_t * dev);
935 extern void drm_driver_irq_postinstall(drm_device_t * dev);
936 extern void drm_driver_irq_uninstall(drm_device_t * dev);
938 extern int drm_wait_vblank(struct inode *inode, struct file *filp,
939 unsigned int cmd, unsigned long arg);
940 extern int drm_vblank_wait(drm_device_t * dev, unsigned int *vbl_seq);
941 extern void drm_vbl_send_signals(drm_device_t * dev);
943 /* AGP/GART support (drm_agpsupport.h) */
944 extern drm_agp_head_t *drm_agp_init(drm_device_t * dev);
945 extern int drm_agp_acquire(drm_device_t * dev);
946 extern int drm_agp_acquire_ioctl(struct inode *inode, struct file *filp,
947 unsigned int cmd, unsigned long arg);
948 extern int drm_agp_release(drm_device_t * dev);
949 extern int drm_agp_release_ioctl(struct inode *inode, struct file *filp,
950 unsigned int cmd, unsigned long arg);
951 extern int drm_agp_enable(drm_device_t * dev, drm_agp_mode_t mode);
952 extern int drm_agp_enable_ioctl(struct inode *inode, struct file *filp,
953 unsigned int cmd, unsigned long arg);
954 extern int drm_agp_info(drm_device_t * dev, drm_agp_info_t * info);
955 extern int drm_agp_info_ioctl(struct inode *inode, struct file *filp,
956 unsigned int cmd, unsigned long arg);
957 extern int drm_agp_alloc(drm_device_t *dev, drm_agp_buffer_t *request);
958 extern int drm_agp_alloc_ioctl(struct inode *inode, struct file *filp,
959 unsigned int cmd, unsigned long arg);
960 extern int drm_agp_free(drm_device_t *dev, drm_agp_buffer_t *request);
961 extern int drm_agp_free_ioctl(struct inode *inode, struct file *filp,
962 unsigned int cmd, unsigned long arg);
963 extern int drm_agp_unbind(drm_device_t *dev, drm_agp_binding_t *request);
964 extern int drm_agp_unbind_ioctl(struct inode *inode, struct file *filp,
965 unsigned int cmd, unsigned long arg);
966 extern int drm_agp_bind(drm_device_t *dev, drm_agp_binding_t *request);
967 extern int drm_agp_bind_ioctl(struct inode *inode, struct file *filp,
968 unsigned int cmd, unsigned long arg);
969 extern DRM_AGP_MEM *drm_agp_allocate_memory(struct agp_bridge_data *bridge,
970 size_t pages, u32 type);
971 extern int drm_agp_free_memory(DRM_AGP_MEM * handle);
972 extern int drm_agp_bind_memory(DRM_AGP_MEM * handle, off_t start);
973 extern int drm_agp_unbind_memory(DRM_AGP_MEM * handle);
975 /* Stub support (drm_stub.h) */
976 extern int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
977 struct drm_driver *driver);
978 extern int drm_put_dev(drm_device_t * dev);
979 extern int drm_put_head(drm_head_t * head);
980 extern unsigned int drm_debug;
981 extern unsigned int drm_cards_limit;
982 extern drm_head_t **drm_heads;
983 extern struct class *drm_class;
984 extern struct proc_dir_entry *drm_proc_root;
986 /* Proc support (drm_proc.h) */
987 extern int drm_proc_init(drm_device_t * dev,
989 struct proc_dir_entry *root,
990 struct proc_dir_entry **dev_root);
991 extern int drm_proc_cleanup(int minor,
992 struct proc_dir_entry *root,
993 struct proc_dir_entry *dev_root);
995 /* Scatter Gather Support (drm_scatter.h) */
996 extern void drm_sg_cleanup(drm_sg_mem_t * entry);
997 extern int drm_sg_alloc(struct inode *inode, struct file *filp,
998 unsigned int cmd, unsigned long arg);
999 extern int drm_sg_free(struct inode *inode, struct file *filp,
1000 unsigned int cmd, unsigned long arg);
1002 /* ATI PCIGART support (ati_pcigart.h) */
1003 extern int drm_ati_pcigart_init(drm_device_t * dev,
1004 drm_ati_pcigart_info * gart_info);
1005 extern int drm_ati_pcigart_cleanup(drm_device_t * dev,
1006 drm_ati_pcigart_info * gart_info);
1008 extern drm_dma_handle_t *drm_pci_alloc(drm_device_t * dev, size_t size,
1009 size_t align, dma_addr_t maxaddr);
1010 extern void __drm_pci_free(drm_device_t * dev, drm_dma_handle_t * dmah);
1011 extern void drm_pci_free(drm_device_t * dev, drm_dma_handle_t * dmah);
1013 /* sysfs support (drm_sysfs.c) */
1014 extern struct class *drm_sysfs_create(struct module *owner, char *name);
1015 extern void drm_sysfs_destroy(struct class *cs);
1016 extern struct class_device *drm_sysfs_device_add(struct class *cs,
1018 extern void drm_sysfs_device_remove(struct class_device *class_dev);
1020 /* Inline replacements for DRM_IOREMAP macros */
1021 static __inline__ void drm_core_ioremap(struct drm_map *map,
1022 struct drm_device *dev)
1024 map->handle = drm_ioremap(map->offset, map->size, dev);
1027 static __inline__ void drm_core_ioremap_nocache(struct drm_map *map,
1028 struct drm_device *dev)
1030 map->handle = drm_ioremap_nocache(map->offset, map->size, dev);
1033 static __inline__ void drm_core_ioremapfree(struct drm_map *map,
1034 struct drm_device *dev)
1036 if (map->handle && map->size)
1037 drm_ioremapfree(map->handle, map->size, dev);
1040 static __inline__ struct drm_map *drm_core_findmap(struct drm_device *dev,
1043 drm_map_list_t *_entry;
1044 list_for_each_entry(_entry, &dev->maplist->head, head)
1045 if (_entry->user_token == token)
1050 static __inline__ int drm_device_is_agp(drm_device_t * dev)
1052 if (dev->driver->device_is_agp != NULL) {
1053 int err = (*dev->driver->device_is_agp) (dev);
1060 return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP);
1063 static __inline__ int drm_device_is_pcie(drm_device_t * dev)
1065 return pci_find_capability(dev->pdev, PCI_CAP_ID_EXP);
1068 static __inline__ void drm_core_dropmap(struct drm_map *map)
1072 #ifndef DEBUG_MEMORY
1073 /** Wrapper around kmalloc() */
1074 static __inline__ void *drm_alloc(size_t size, int area)
1076 return kmalloc(size, GFP_KERNEL);
1079 /** Wrapper around kfree() */
1080 static __inline__ void drm_free(void *pt, size_t size, int area)
1085 /** Wrapper around kcalloc() */
1086 static __inline__ void *drm_calloc(size_t nmemb, size_t size, int area)
1088 return kcalloc(nmemb, size, GFP_KERNEL);
1091 extern void *drm_alloc(size_t size, int area);
1092 extern void drm_free(void *pt, size_t size, int area);
1093 extern void *drm_calloc(size_t nmemb, size_t size, int area);
1098 extern unsigned long drm_core_get_map_ofs(drm_map_t * map);
1099 extern unsigned long drm_core_get_reg_ofs(struct drm_device *dev);
1101 #ifndef pci_pretty_name
1102 #define pci_pretty_name(dev) ""
1105 #endif /* __KERNEL__ */