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))
83 #include "drm_os_linux.h"
84 #include "drm_hashtab.h"
86 /***********************************************************************/
87 /** \name DRM template customization defaults */
90 /* driver capabilities and requirements mask */
91 #define DRIVER_USE_AGP 0x1
92 #define DRIVER_REQUIRE_AGP 0x2
93 #define DRIVER_USE_MTRR 0x4
94 #define DRIVER_PCI_DMA 0x8
95 #define DRIVER_SG 0x10
96 #define DRIVER_HAVE_DMA 0x20
97 #define DRIVER_HAVE_IRQ 0x40
98 #define DRIVER_IRQ_SHARED 0x80
99 #define DRIVER_IRQ_VBL 0x100
100 #define DRIVER_DMA_QUEUE 0x200
101 #define DRIVER_FB_DMA 0x400
102 #define DRIVER_IRQ_VBL2 0x800
104 /***********************************************************************/
105 /** \name Begin the DRM... */
108 #define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then
109 also include looping detection. */
111 #define DRM_MAGIC_HASH_ORDER 4 /**< Size of key hash table. Must be power of 2. */
112 #define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */
113 #define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */
114 #define DRM_LOOPING_LIMIT 5000000
115 #define DRM_TIME_SLICE (HZ/20) /**< Time slice for GLXContexts */
116 #define DRM_LOCK_SLICE 1 /**< Time slice for lock, in jiffies */
118 #define DRM_FLAG_DEBUG 0x01
120 #define DRM_MEM_DMA 0
121 #define DRM_MEM_SAREA 1
122 #define DRM_MEM_DRIVER 2
123 #define DRM_MEM_MAGIC 3
124 #define DRM_MEM_IOCTLS 4
125 #define DRM_MEM_MAPS 5
126 #define DRM_MEM_VMAS 6
127 #define DRM_MEM_BUFS 7
128 #define DRM_MEM_SEGS 8
129 #define DRM_MEM_PAGES 9
130 #define DRM_MEM_FILES 10
131 #define DRM_MEM_QUEUES 11
132 #define DRM_MEM_CMDS 12
133 #define DRM_MEM_MAPPINGS 13
134 #define DRM_MEM_BUFLISTS 14
135 #define DRM_MEM_AGPLISTS 15
136 #define DRM_MEM_TOTALAGP 16
137 #define DRM_MEM_BOUNDAGP 17
138 #define DRM_MEM_CTXBITMAP 18
139 #define DRM_MEM_STUB 19
140 #define DRM_MEM_SGLISTS 20
141 #define DRM_MEM_CTXLIST 21
142 #define DRM_MEM_MM 22
143 #define DRM_MEM_HASHTAB 23
145 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
146 #define DRM_MAP_HASH_OFFSET 0x10000000
150 /***********************************************************************/
151 /** \name Macros to make printk easier */
157 * \param fmt printf() like format string.
158 * \param arg arguments
160 #define DRM_ERROR(fmt, arg...) \
161 printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* " fmt , __FUNCTION__ , ##arg)
164 * Memory error output.
166 * \param area memory area where the error occurred.
167 * \param fmt printf() like format string.
168 * \param arg arguments
170 #define DRM_MEM_ERROR(area, fmt, arg...) \
171 printk(KERN_ERR "[" DRM_NAME ":%s:%s] *ERROR* " fmt , __FUNCTION__, \
172 drm_mem_stats[area].name , ##arg)
174 #define DRM_INFO(fmt, arg...) printk(KERN_INFO "[" DRM_NAME "] " fmt , ##arg)
179 * \param fmt printf() like format string.
180 * \param arg arguments
183 #define DRM_DEBUG(fmt, arg...) \
187 "[" DRM_NAME ":%s] " fmt , \
188 __FUNCTION__ , ##arg); \
191 #define DRM_DEBUG(fmt, arg...) do { } while (0)
194 #define DRM_PROC_LIMIT (PAGE_SIZE-80)
196 #define DRM_PROC_PRINT(fmt, arg...) \
197 len += sprintf(&buf[len], fmt , ##arg); \
198 if (len > DRM_PROC_LIMIT) { *eof = 1; return len - offset; }
200 #define DRM_PROC_PRINT_RET(ret, fmt, arg...) \
201 len += sprintf(&buf[len], fmt , ##arg); \
202 if (len > DRM_PROC_LIMIT) { ret; *eof = 1; return len - offset; }
206 /***********************************************************************/
207 /** \name Internal types and structures */
210 #define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x)
212 #define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
213 #define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
214 #define DRM_WAITCOUNT(dev,idx) DRM_BUFCOUNT(&dev->queuelist[idx]->waitlist)
216 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
218 * Get the private SAREA mapping.
220 * \param _dev DRM device.
221 * \param _ctx context number.
222 * \param _map output mapping.
224 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
225 (_map) = (_dev)->context_sareas[_ctx]; \
229 * Test that the hardware lock is held by the caller, returning otherwise.
231 * \param dev DRM device.
232 * \param filp file pointer of the caller.
234 #define LOCK_TEST_WITH_RETURN( dev, filp ) \
236 if ( !_DRM_LOCK_IS_HELD( dev->lock.hw_lock->lock ) || \
237 dev->lock.filp != filp ) { \
238 DRM_ERROR( "%s called without lock held\n", \
245 * Copy and IOCTL return string to user space
247 #define DRM_COPY( name, value ) \
248 len = strlen( value ); \
249 if ( len > name##_len ) len = name##_len; \
250 name##_len = strlen( value ); \
251 if ( len && name ) { \
252 if ( copy_to_user( name, value, len ) ) \
257 * Ioctl function type.
259 * \param inode device inode.
260 * \param filp file pointer.
261 * \param cmd command.
262 * \param arg argument.
264 typedef int drm_ioctl_t(struct inode *inode, struct file *filp,
265 unsigned int cmd, unsigned long arg);
267 typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
271 #define DRM_MASTER 0x2
272 #define DRM_ROOT_ONLY 0x4
274 typedef struct drm_ioctl_desc {
279 struct drm_magic_entry {
280 struct list_head head;
281 struct drm_hash_item hash_item;
282 struct drm_file *priv;
283 struct drm_magic_entry *next;
286 struct drm_vma_entry {
287 struct list_head head;
288 struct vm_area_struct *vma;
296 int idx; /**< Index into master buflist */
297 int total; /**< Buffer size */
298 int order; /**< log-base-2(total) */
299 int used; /**< Amount of buffer in use (for DMA) */
300 unsigned long offset; /**< Byte offset (used internally) */
301 void *address; /**< Address of buffer */
302 unsigned long bus_address; /**< Bus address of buffer */
303 struct drm_buf *next; /**< Kernel-only: used for free list */
304 __volatile__ int waiting; /**< On kernel DMA queue */
305 __volatile__ int pending; /**< On hardware DMA queue */
306 wait_queue_head_t dma_wait; /**< Processes waiting */
307 struct file *filp; /**< Pointer to holding file descr */
308 int context; /**< Kernel queue for this buffer */
309 int while_locked; /**< Dispatch this buffer while locked */
317 } list; /**< Which list we're on */
319 int dev_priv_size; /**< Size of buffer private storage */
320 void *dev_private; /**< Per-buffer private storage */
323 /** bufs is one longer than it has to be */
324 struct drm_waitlist {
325 int count; /**< Number of possible buffers */
326 struct drm_buf **bufs; /**< List of pointers to buffers */
327 struct drm_buf **rp; /**< Read pointer */
328 struct drm_buf **wp; /**< Write pointer */
329 struct drm_buf **end; /**< End pointer */
330 spinlock_t read_lock;
331 spinlock_t write_lock;
334 struct drm_freelist {
335 int initialized; /**< Freelist in use */
336 atomic_t count; /**< Number of free buffers */
337 struct drm_buf *next; /**< End pointer */
339 wait_queue_head_t waiting; /**< Processes waiting on free bufs */
340 int low_mark; /**< Low water mark */
341 int high_mark; /**< High water mark */
342 atomic_t wfh; /**< If waiting for high mark */
346 typedef struct drm_dma_handle {
353 * Buffer entry. There is one of this for each buffer size order.
355 struct drm_buf_entry {
356 int buf_size; /**< size */
357 int buf_count; /**< number of buffers */
358 struct drm_buf *buflist; /**< buffer list */
361 struct drm_dma_handle **seglist;
363 struct drm_freelist freelist;
366 /** File private data */
374 unsigned long ioctl_count;
375 struct list_head lhead;
376 struct drm_head *head;
377 int remove_auth_on_close;
378 unsigned long lock_count;
384 atomic_t use_count; /**< Outstanding uses (+1) */
385 atomic_t finalization; /**< Finalization in progress */
386 atomic_t block_count; /**< Count of processes waiting */
387 atomic_t block_read; /**< Queue blocked for reads */
388 wait_queue_head_t read_queue; /**< Processes waiting on block_read */
389 atomic_t block_write; /**< Queue blocked for writes */
390 wait_queue_head_t write_queue; /**< Processes waiting on block_write */
392 atomic_t total_queued; /**< Total queued statistic */
393 atomic_t total_flushed; /**< Total flushes statistic */
394 atomic_t total_locks; /**< Total locks statistics */
396 enum drm_ctx_flags flags; /**< Context preserving and 2D-only */
397 struct drm_waitlist waitlist; /**< Pending buffers */
398 wait_queue_head_t flush_queue; /**< Processes waiting until flush */
404 struct drm_lock_data {
405 struct drm_hw_lock *hw_lock; /**< Hardware lock */
406 struct file *filp; /**< File descr of lock holder (0=kernel) */
407 wait_queue_head_t lock_queue; /**< Queue of blocked processes */
408 unsigned long lock_time; /**< Time of last lock in jiffies */
410 uint32_t kernel_waiters;
411 uint32_t user_waiters;
418 struct drm_device_dma {
420 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */
421 int buf_count; /**< total number of buffers */
422 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */
424 int page_count; /**< number of pages */
425 unsigned long *pagelist; /**< page list */
426 unsigned long byte_count;
428 _DRM_DMA_USE_AGP = 0x01,
429 _DRM_DMA_USE_SG = 0x02,
430 _DRM_DMA_USE_FB = 0x04,
431 _DRM_DMA_USE_PCI_RO = 0x08
437 * AGP memory entry. Stored as a doubly linked list.
440 unsigned long handle; /**< handle */
442 unsigned long bound; /**< address */
444 struct list_head head;
450 * \sa drm_agp_init() and drm_device::agp.
452 struct drm_agp_head {
453 DRM_AGP_KERN agp_info; /**< AGP device information */
454 struct list_head memory;
455 unsigned long mode; /**< AGP mode */
456 struct agp_bridge_data *bridge;
457 int enabled; /**< whether the AGP bus as been enabled */
458 int acquired; /**< whether the AGP device has been acquired */
461 int cant_use_aperture;
462 unsigned long page_mask;
466 * Scatter-gather memory.
469 unsigned long handle;
472 struct page **pagelist;
478 struct drm_hw_lock *lock;
484 struct drm_map_list {
485 struct list_head head; /**< list head */
486 struct drm_hash_item hash;
487 struct drm_map *map; /**< mapping */
488 unsigned int user_token;
491 typedef struct drm_map drm_local_map_t;
494 * Context handle list
496 struct drm_ctx_list {
497 struct list_head head; /**< list head */
498 drm_context_t handle; /**< context handle */
499 struct drm_file *tag; /**< associated fd private data */
503 struct list_head head;
504 unsigned int sequence;
506 struct task_struct *task;
509 /* location of GART table */
510 #define DRM_ATI_GART_MAIN 1
511 #define DRM_ATI_GART_FB 2
513 #define DRM_ATI_GART_PCI 1
514 #define DRM_ATI_GART_PCIE 2
515 #define DRM_ATI_GART_IGP 3
517 struct drm_ati_pcigart_info {
518 int gart_table_location;
522 drm_local_map_t mapping;
527 * Generic memory manager structs
530 struct list_head fl_entry;
531 struct list_head ml_entry;
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 *, struct drm_file *);
555 void (*preclose) (struct drm_device *, struct file * filp);
556 void (*postclose) (struct drm_device *, struct drm_file *);
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 void (*reclaim_buffers_idlelocked) (struct drm_device *dev,
595 unsigned long (*get_map_ofs) (struct drm_map * map);
596 unsigned long (*get_reg_ofs) (struct drm_device *dev);
597 void (*set_version) (struct drm_device *dev,
598 struct drm_set_version *sv);
609 drm_ioctl_desc_t *ioctls;
611 struct file_operations fops;
612 struct pci_driver pci_driver;
616 * DRM head structure. This structure represent a video head on a card
617 * that may contain multiple heads. Embed one per head of these in the
618 * private drm_device structure.
621 int minor; /**< Minor device number */
622 struct drm_device *dev;
623 struct proc_dir_entry *dev_root; /**< proc directory entry */
624 dev_t device; /**< Device number for mknod */
625 struct class_device *dev_class;
629 * DRM device structure. This structure represent a complete card that
630 * may contain multiple heads.
633 char *unique; /**< Unique identifier: e.g., busid */
634 int unique_len; /**< Length of unique field */
635 char *devname; /**< For /proc/interrupts */
636 int if_version; /**< Highest interface version set */
638 int blocked; /**< Blocked due to VC switch? */
642 spinlock_t count_lock; /**< For inuse, drm_device::open_count, drm_device::buf_use */
643 struct mutex struct_mutex; /**< For others */
646 /** \name Usage Counters */
648 int open_count; /**< Outstanding files open */
649 atomic_t ioctl_count; /**< Outstanding IOCTLs pending */
650 atomic_t vma_count; /**< Outstanding vma areas open */
651 int buf_use; /**< Buffers in use -- cannot alloc */
652 atomic_t buf_alloc; /**< Buffer allocation in progress */
655 /** \name Performance counters */
657 unsigned long counters;
658 enum drm_stat_type types[15];
662 /** \name Authentication */
664 struct list_head filelist;
665 struct drm_open_hash magiclist; /**< magic hash table */
666 struct list_head magicfree;
669 /** \name Memory management */
671 struct list_head maplist; /**< Linked list of regions */
672 int map_count; /**< Number of mappable regions */
673 struct drm_open_hash map_hash; /**< User token hash table for maps */
675 /** \name Context handle management */
677 struct list_head ctxlist; /**< Linked list of context handles */
678 int ctx_count; /**< Number of context handles */
679 struct mutex ctxlist_mutex; /**< For ctxlist */
683 struct list_head vmalist; /**< List of vmas (for debugging) */
684 struct drm_lock_data lock; /**< Information on hardware lock */
687 /** \name DMA queues (contexts) */
689 int queue_count; /**< Number of active DMA queues */
690 int queue_reserved; /**< Number of reserved DMA queues */
691 int queue_slots; /**< Actual length of queuelist */
692 struct drm_queue **queuelist; /**< Vector of pointers to DMA queues */
693 struct drm_device_dma *dma; /**< Optional pointer for DMA support */
696 /** \name Context support */
698 int irq; /**< Interrupt used by board */
699 int irq_enabled; /**< True if irq handler is enabled */
700 __volatile__ long context_flag; /**< Context swapping flag */
701 __volatile__ long interrupt_flag; /**< Interruption handler flag */
702 __volatile__ long dma_flag; /**< DMA dispatch flag */
703 struct timer_list timer; /**< Timer for delaying ctx switch */
704 wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */
705 int last_checked; /**< Last context checked for DMA */
706 int last_context; /**< Last current context */
707 unsigned long last_switch; /**< jiffies at last context switch */
710 struct work_struct work;
711 /** \name VBLANK IRQ support */
714 wait_queue_head_t vbl_queue; /**< VBLANK wait queue */
715 atomic_t vbl_received;
716 atomic_t vbl_received2; /**< number of secondary VBLANK interrupts */
718 struct list_head vbl_sigs; /**< signal list to send on VBLANK */
719 struct list_head vbl_sigs2; /**< signals to send on secondary VBLANK */
720 unsigned int vbl_pending;
721 spinlock_t tasklet_lock; /**< For drm_locked_tasklet */
722 void (*locked_tasklet_func)(struct drm_device *dev);
728 struct fasync_struct *buf_async;/**< Processes waiting for SIGIO */
729 wait_queue_head_t buf_readers; /**< Processes waiting to read */
730 wait_queue_head_t buf_writers; /**< Processes waiting to ctx switch */
732 struct drm_agp_head *agp; /**< AGP data */
734 struct pci_dev *pdev; /**< PCI device structure */
735 int pci_vendor; /**< PCI vendor id */
736 int pci_device; /**< PCI device id */
738 struct pci_controller *hose;
740 struct drm_sg_mem *sg; /**< Scatter gather memory */
741 unsigned long *ctx_bitmap; /**< context bitmap */
742 void *dev_private; /**< device private data */
743 struct drm_sigdata sigdata; /**< For block_all_signals */
746 struct drm_driver *driver;
747 drm_local_map_t *agp_buffer_map;
748 unsigned int agp_buffer_token;
749 struct drm_head primary; /**< primary screen head */
751 /** \name Drawable information */
758 static __inline__ int drm_core_check_feature(struct drm_device *dev,
761 return ((dev->driver->driver_features & feature) ? 1 : 0);
765 #define drm_get_pci_domain(dev) dev->hose->index
767 #define drm_get_pci_domain(dev) 0
771 static inline int drm_core_has_AGP(struct drm_device *dev)
773 return drm_core_check_feature(dev, DRIVER_USE_AGP);
776 #define drm_core_has_AGP(dev) (0)
780 static inline int drm_core_has_MTRR(struct drm_device *dev)
782 return drm_core_check_feature(dev, DRIVER_USE_MTRR);
785 #define DRM_MTRR_WC MTRR_TYPE_WRCOMB
787 static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
790 return mtrr_add(offset, size, flags, 1);
793 static inline int drm_mtrr_del(int handle, unsigned long offset,
794 unsigned long size, unsigned int flags)
796 return mtrr_del(handle, offset, size);
800 #define drm_core_has_MTRR(dev) (0)
802 #define DRM_MTRR_WC 0
804 static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
810 static inline int drm_mtrr_del(int handle, unsigned long offset,
811 unsigned long size, unsigned int flags)
817 /******************************************************************/
818 /** \name Internal function definitions */
821 /* Driver support (drm_drv.h) */
822 extern int drm_init(struct drm_driver *driver);
823 extern void drm_exit(struct drm_driver *driver);
824 extern int drm_ioctl(struct inode *inode, struct file *filp,
825 unsigned int cmd, unsigned long arg);
826 extern long drm_compat_ioctl(struct file *filp,
827 unsigned int cmd, unsigned long arg);
828 extern int drm_lastclose(struct drm_device *dev);
830 /* Device support (drm_fops.h) */
831 extern int drm_open(struct inode *inode, struct file *filp);
832 extern int drm_stub_open(struct inode *inode, struct file *filp);
833 extern int drm_fasync(int fd, struct file *filp, int on);
834 extern int drm_release(struct inode *inode, struct file *filp);
836 /* Mapping support (drm_vm.h) */
837 extern int drm_mmap(struct file *filp, struct vm_area_struct *vma);
838 extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait);
840 /* Memory management support (drm_memory.h) */
841 #include "drm_memory.h"
842 extern void drm_mem_init(void);
843 extern int drm_mem_info(char *buf, char **start, off_t offset,
844 int request, int *eof, void *data);
845 extern void *drm_realloc(void *oldpt, size_t oldsize, size_t size, int area);
847 extern DRM_AGP_MEM *drm_alloc_agp(struct drm_device *dev, int pages, u32 type);
848 extern int drm_free_agp(DRM_AGP_MEM * handle, int pages);
849 extern int drm_bind_agp(DRM_AGP_MEM * handle, unsigned int start);
850 extern int drm_unbind_agp(DRM_AGP_MEM * handle);
852 /* Misc. IOCTL support (drm_ioctl.h) */
853 extern int drm_irq_by_busid(struct inode *inode, struct file *filp,
854 unsigned int cmd, unsigned long arg);
855 extern int drm_getunique(struct inode *inode, struct file *filp,
856 unsigned int cmd, unsigned long arg);
857 extern int drm_setunique(struct inode *inode, struct file *filp,
858 unsigned int cmd, unsigned long arg);
859 extern int drm_getmap(struct inode *inode, struct file *filp,
860 unsigned int cmd, unsigned long arg);
861 extern int drm_getclient(struct inode *inode, struct file *filp,
862 unsigned int cmd, unsigned long arg);
863 extern int drm_getstats(struct inode *inode, struct file *filp,
864 unsigned int cmd, unsigned long arg);
865 extern int drm_setversion(struct inode *inode, struct file *filp,
866 unsigned int cmd, unsigned long arg);
867 extern int drm_noop(struct inode *inode, struct file *filp,
868 unsigned int cmd, unsigned long arg);
870 /* Context IOCTL support (drm_context.h) */
871 extern int drm_resctx(struct inode *inode, struct file *filp,
872 unsigned int cmd, unsigned long arg);
873 extern int drm_addctx(struct inode *inode, struct file *filp,
874 unsigned int cmd, unsigned long arg);
875 extern int drm_modctx(struct inode *inode, struct file *filp,
876 unsigned int cmd, unsigned long arg);
877 extern int drm_getctx(struct inode *inode, struct file *filp,
878 unsigned int cmd, unsigned long arg);
879 extern int drm_switchctx(struct inode *inode, struct file *filp,
880 unsigned int cmd, unsigned long arg);
881 extern int drm_newctx(struct inode *inode, struct file *filp,
882 unsigned int cmd, unsigned long arg);
883 extern int drm_rmctx(struct inode *inode, struct file *filp,
884 unsigned int cmd, unsigned long arg);
886 extern int drm_ctxbitmap_init(struct drm_device *dev);
887 extern void drm_ctxbitmap_cleanup(struct drm_device *dev);
888 extern void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
890 extern int drm_setsareactx(struct inode *inode, struct file *filp,
891 unsigned int cmd, unsigned long arg);
892 extern int drm_getsareactx(struct inode *inode, struct file *filp,
893 unsigned int cmd, unsigned long arg);
895 /* Drawable IOCTL support (drm_drawable.h) */
896 extern int drm_adddraw(struct inode *inode, struct file *filp,
897 unsigned int cmd, unsigned long arg);
898 extern int drm_rmdraw(struct inode *inode, struct file *filp,
899 unsigned int cmd, unsigned long arg);
900 extern int drm_update_drawable_info(struct inode *inode, struct file *filp,
901 unsigned int cmd, unsigned long arg);
902 extern struct drm_drawable_info *drm_get_drawable_info(struct drm_device *dev,
904 extern void drm_drawable_free_all(struct drm_device *dev);
906 /* Authentication IOCTL support (drm_auth.h) */
907 extern int drm_getmagic(struct inode *inode, struct file *filp,
908 unsigned int cmd, unsigned long arg);
909 extern int drm_authmagic(struct inode *inode, struct file *filp,
910 unsigned int cmd, unsigned long arg);
912 /* Locking IOCTL support (drm_lock.h) */
913 extern int drm_lock(struct inode *inode, struct file *filp,
914 unsigned int cmd, unsigned long arg);
915 extern int drm_unlock(struct inode *inode, struct file *filp,
916 unsigned int cmd, unsigned long arg);
917 extern int drm_lock_take(struct drm_lock_data *lock_data, unsigned int context);
918 extern int drm_lock_free(struct drm_lock_data *lock_data, unsigned int context);
919 extern void drm_idlelock_take(struct drm_lock_data *lock_data);
920 extern void drm_idlelock_release(struct drm_lock_data *lock_data);
923 * These are exported to drivers so that they can implement fencing using
924 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
927 extern int drm_i_have_hw_lock(struct file *filp);
928 extern int drm_kernel_take_hw_lock(struct file *filp);
930 /* Buffer management support (drm_bufs.h) */
931 extern int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc * request);
932 extern int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc * request);
933 extern int drm_addmap(struct drm_device *dev, unsigned int offset,
934 unsigned int size, enum drm_map_type type,
935 enum drm_map_flags flags, drm_local_map_t ** map_ptr);
936 extern int drm_addmap_ioctl(struct inode *inode, struct file *filp,
937 unsigned int cmd, unsigned long arg);
938 extern int drm_rmmap(struct drm_device *dev, drm_local_map_t * map);
939 extern int drm_rmmap_locked(struct drm_device *dev, drm_local_map_t * map);
940 extern int drm_rmmap_ioctl(struct inode *inode, struct file *filp,
941 unsigned int cmd, unsigned long arg);
943 extern int drm_order(unsigned long size);
944 extern int drm_addbufs(struct inode *inode, struct file *filp,
945 unsigned int cmd, unsigned long arg);
946 extern int drm_infobufs(struct inode *inode, struct file *filp,
947 unsigned int cmd, unsigned long arg);
948 extern int drm_markbufs(struct inode *inode, struct file *filp,
949 unsigned int cmd, unsigned long arg);
950 extern int drm_freebufs(struct inode *inode, struct file *filp,
951 unsigned int cmd, unsigned long arg);
952 extern int drm_mapbufs(struct inode *inode, struct file *filp,
953 unsigned int cmd, unsigned long arg);
954 extern unsigned long drm_get_resource_start(struct drm_device *dev,
955 unsigned int resource);
956 extern unsigned long drm_get_resource_len(struct drm_device *dev,
957 unsigned int resource);
959 /* DMA support (drm_dma.h) */
960 extern int drm_dma_setup(struct drm_device *dev);
961 extern void drm_dma_takedown(struct drm_device *dev);
962 extern void drm_free_buffer(struct drm_device *dev, struct drm_buf * buf);
963 extern void drm_core_reclaim_buffers(struct drm_device *dev, struct file *filp);
965 /* IRQ support (drm_irq.h) */
966 extern int drm_control(struct inode *inode, struct file *filp,
967 unsigned int cmd, unsigned long arg);
968 extern irqreturn_t drm_irq_handler(DRM_IRQ_ARGS);
969 extern int drm_irq_uninstall(struct drm_device *dev);
970 extern void drm_driver_irq_preinstall(struct drm_device *dev);
971 extern void drm_driver_irq_postinstall(struct drm_device *dev);
972 extern void drm_driver_irq_uninstall(struct drm_device *dev);
974 extern int drm_wait_vblank(struct inode *inode, struct file *filp,
975 unsigned int cmd, unsigned long arg);
976 extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq);
977 extern void drm_vbl_send_signals(struct drm_device *dev);
978 extern void drm_locked_tasklet(struct drm_device *dev, void(*func)(struct drm_device*));
980 /* AGP/GART support (drm_agpsupport.h) */
981 extern struct drm_agp_head *drm_agp_init(struct drm_device *dev);
982 extern int drm_agp_acquire(struct drm_device *dev);
983 extern int drm_agp_acquire_ioctl(struct inode *inode, struct file *filp,
984 unsigned int cmd, unsigned long arg);
985 extern int drm_agp_release(struct drm_device *dev);
986 extern int drm_agp_release_ioctl(struct inode *inode, struct file *filp,
987 unsigned int cmd, unsigned long arg);
988 extern int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode);
989 extern int drm_agp_enable_ioctl(struct inode *inode, struct file *filp,
990 unsigned int cmd, unsigned long arg);
991 extern int drm_agp_info(struct drm_device *dev, struct drm_agp_info * info);
992 extern int drm_agp_info_ioctl(struct inode *inode, struct file *filp,
993 unsigned int cmd, unsigned long arg);
994 extern int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request);
995 extern int drm_agp_alloc_ioctl(struct inode *inode, struct file *filp,
996 unsigned int cmd, unsigned long arg);
997 extern int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request);
998 extern int drm_agp_free_ioctl(struct inode *inode, struct file *filp,
999 unsigned int cmd, unsigned long arg);
1000 extern int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request);
1001 extern int drm_agp_unbind_ioctl(struct inode *inode, struct file *filp,
1002 unsigned int cmd, unsigned long arg);
1003 extern int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
1004 extern int drm_agp_bind_ioctl(struct inode *inode, struct file *filp,
1005 unsigned int cmd, unsigned long arg);
1006 extern DRM_AGP_MEM *drm_agp_allocate_memory(struct agp_bridge_data *bridge,
1007 size_t pages, u32 type);
1008 extern int drm_agp_free_memory(DRM_AGP_MEM * handle);
1009 extern int drm_agp_bind_memory(DRM_AGP_MEM * handle, off_t start);
1010 extern int drm_agp_unbind_memory(DRM_AGP_MEM * handle);
1012 /* Stub support (drm_stub.h) */
1013 extern int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
1014 struct drm_driver *driver);
1015 extern int drm_put_dev(struct drm_device *dev);
1016 extern int drm_put_head(struct drm_head *head);
1017 extern unsigned int drm_debug;
1018 extern unsigned int drm_cards_limit;
1019 extern struct drm_head **drm_heads;
1020 extern struct class *drm_class;
1021 extern struct proc_dir_entry *drm_proc_root;
1023 extern drm_local_map_t *drm_getsarea(struct drm_device *dev);
1025 /* Proc support (drm_proc.h) */
1026 extern int drm_proc_init(struct drm_device *dev,
1028 struct proc_dir_entry *root,
1029 struct proc_dir_entry **dev_root);
1030 extern int drm_proc_cleanup(int minor,
1031 struct proc_dir_entry *root,
1032 struct proc_dir_entry *dev_root);
1034 /* Scatter Gather Support (drm_scatter.h) */
1035 extern void drm_sg_cleanup(struct drm_sg_mem * entry);
1036 extern int drm_sg_alloc(struct inode *inode, struct file *filp,
1037 unsigned int cmd, unsigned long arg);
1038 extern int drm_sg_free(struct inode *inode, struct file *filp,
1039 unsigned int cmd, unsigned long arg);
1041 /* ATI PCIGART support (ati_pcigart.h) */
1042 extern int drm_ati_pcigart_init(struct drm_device *dev,
1043 struct drm_ati_pcigart_info * gart_info);
1044 extern int drm_ati_pcigart_cleanup(struct drm_device *dev,
1045 struct drm_ati_pcigart_info * gart_info);
1047 extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
1048 size_t align, dma_addr_t maxaddr);
1049 extern void __drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
1050 extern void drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
1052 /* sysfs support (drm_sysfs.c) */
1053 extern struct class *drm_sysfs_create(struct module *owner, char *name);
1054 extern void drm_sysfs_destroy(struct class *cs);
1055 extern struct class_device *drm_sysfs_device_add(struct class *cs,
1056 struct drm_head *head);
1057 extern void drm_sysfs_device_remove(struct class_device *class_dev);
1060 * Basic memory manager support (drm_mm.c)
1062 extern struct drm_mm_node *drm_mm_get_block(struct drm_mm_node * parent,
1064 unsigned alignment);
1065 void drm_mm_put_block(struct drm_mm_node * cur);
1066 extern struct drm_mm_node *drm_mm_search_free(const struct drm_mm *mm, unsigned long size,
1067 unsigned alignment, int best_match);
1068 extern int drm_mm_init(struct drm_mm *mm, unsigned long start, unsigned long size);
1069 extern void drm_mm_takedown(struct drm_mm *mm);
1070 extern int drm_mm_clean(struct drm_mm *mm);
1071 extern unsigned long drm_mm_tail_space(struct drm_mm *mm);
1072 extern int drm_mm_remove_space_from_tail(struct drm_mm *mm, unsigned long size);
1073 extern int drm_mm_add_space_to_tail(struct drm_mm *mm, unsigned long size);
1075 extern void drm_core_ioremap(struct drm_map *map, struct drm_device *dev);
1076 extern void drm_core_ioremapfree(struct drm_map *map, struct drm_device *dev);
1078 static __inline__ struct drm_map *drm_core_findmap(struct drm_device *dev,
1081 struct drm_map_list *_entry;
1082 list_for_each_entry(_entry, &dev->maplist, head)
1083 if (_entry->user_token == token)
1088 static __inline__ int drm_device_is_agp(struct drm_device *dev)
1090 if (dev->driver->device_is_agp != NULL) {
1091 int err = (*dev->driver->device_is_agp) (dev);
1098 return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP);
1101 static __inline__ int drm_device_is_pcie(struct drm_device *dev)
1103 return pci_find_capability(dev->pdev, PCI_CAP_ID_EXP);
1106 static __inline__ void drm_core_dropmap(struct drm_map *map)
1110 #ifndef DEBUG_MEMORY
1111 /** Wrapper around kmalloc() */
1112 static __inline__ void *drm_alloc(size_t size, int area)
1114 return kmalloc(size, GFP_KERNEL);
1117 /** Wrapper around kfree() */
1118 static __inline__ void drm_free(void *pt, size_t size, int area)
1123 /** Wrapper around kcalloc() */
1124 static __inline__ void *drm_calloc(size_t nmemb, size_t size, int area)
1126 return kcalloc(nmemb, size, GFP_KERNEL);
1129 extern void *drm_alloc(size_t size, int area);
1130 extern void drm_free(void *pt, size_t size, int area);
1131 extern void *drm_calloc(size_t nmemb, size_t size, int area);
1136 extern unsigned long drm_core_get_map_ofs(struct drm_map * map);
1137 extern unsigned long drm_core_get_reg_ofs(struct drm_device *dev);
1139 #endif /* __KERNEL__ */