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
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_MAGIC_HASH_ORDER 4 /**< 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
139 #define DRM_MEM_MM 22
140 #define DRM_MEM_HASHTAB 23
142 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
143 #define DRM_MAP_HASH_OFFSET 0x10000000
147 /***********************************************************************/
148 /** \name Macros to make printk easier */
154 * \param fmt printf() like format string.
155 * \param arg arguments
157 #define DRM_ERROR(fmt, arg...) \
158 printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* " fmt , __FUNCTION__ , ##arg)
161 * Memory error output.
163 * \param area memory area where the error occurred.
164 * \param fmt printf() like format string.
165 * \param arg arguments
167 #define DRM_MEM_ERROR(area, fmt, arg...) \
168 printk(KERN_ERR "[" DRM_NAME ":%s:%s] *ERROR* " fmt , __FUNCTION__, \
169 drm_mem_stats[area].name , ##arg)
171 #define DRM_INFO(fmt, arg...) printk(KERN_INFO "[" DRM_NAME "] " fmt , ##arg)
176 * \param fmt printf() like format string.
177 * \param arg arguments
180 #define DRM_DEBUG(fmt, arg...) \
184 "[" DRM_NAME ":%s] " fmt , \
185 __FUNCTION__ , ##arg); \
188 #define DRM_DEBUG(fmt, arg...) do { } while (0)
191 #define DRM_PROC_LIMIT (PAGE_SIZE-80)
193 #define DRM_PROC_PRINT(fmt, arg...) \
194 len += sprintf(&buf[len], fmt , ##arg); \
195 if (len > DRM_PROC_LIMIT) { *eof = 1; return len - offset; }
197 #define DRM_PROC_PRINT_RET(ret, fmt, arg...) \
198 len += sprintf(&buf[len], fmt , ##arg); \
199 if (len > DRM_PROC_LIMIT) { ret; *eof = 1; return len - offset; }
203 /***********************************************************************/
204 /** \name Internal types and structures */
207 #define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x)
209 #define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
210 #define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
211 #define DRM_WAITCOUNT(dev,idx) DRM_BUFCOUNT(&dev->queuelist[idx]->waitlist)
213 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
215 * Get the private SAREA mapping.
217 * \param _dev DRM device.
218 * \param _ctx context number.
219 * \param _map output mapping.
221 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
222 (_map) = (_dev)->context_sareas[_ctx]; \
226 * Test that the hardware lock is held by the caller, returning otherwise.
228 * \param dev DRM device.
229 * \param filp file pointer of the caller.
231 #define LOCK_TEST_WITH_RETURN( dev, filp ) \
233 if ( !_DRM_LOCK_IS_HELD( dev->lock.hw_lock->lock ) || \
234 dev->lock.filp != filp ) { \
235 DRM_ERROR( "%s called without lock held\n", \
242 * Copy and IOCTL return string to user space
244 #define DRM_COPY( name, value ) \
245 len = strlen( value ); \
246 if ( len > name##_len ) len = name##_len; \
247 name##_len = strlen( value ); \
248 if ( len && name ) { \
249 if ( copy_to_user( name, value, len ) ) \
254 * Ioctl function type.
256 * \param inode device inode.
257 * \param filp file pointer.
258 * \param cmd command.
259 * \param arg argument.
261 typedef int drm_ioctl_t(struct inode *inode, struct file *filp,
262 unsigned int cmd, unsigned long arg);
264 typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
268 #define DRM_MASTER 0x2
269 #define DRM_ROOT_ONLY 0x4
271 typedef struct drm_ioctl_desc {
276 typedef struct drm_devstate {
277 pid_t owner; /**< X server pid holding x_lock */
280 typedef struct drm_magic_entry {
281 drm_hash_item_t hash_item;
282 struct list_head head;
283 struct drm_file *priv;
284 struct drm_magic_entry *next;
287 typedef struct drm_magic_head {
288 struct drm_magic_entry *head;
289 struct drm_magic_entry *tail;
292 typedef struct drm_vma_entry {
293 struct vm_area_struct *vma;
294 struct drm_vma_entry *next;
301 typedef struct drm_buf {
302 int idx; /**< Index into master buflist */
303 int total; /**< Buffer size */
304 int order; /**< log-base-2(total) */
305 int used; /**< Amount of buffer in use (for DMA) */
306 unsigned long offset; /**< Byte offset (used internally) */
307 void *address; /**< Address of buffer */
308 unsigned long bus_address; /**< Bus address of buffer */
309 struct drm_buf *next; /**< Kernel-only: used for free list */
310 __volatile__ int waiting; /**< On kernel DMA queue */
311 __volatile__ int pending; /**< On hardware DMA queue */
312 wait_queue_head_t dma_wait; /**< Processes waiting */
313 struct file *filp; /**< Pointer to holding file descr */
314 int context; /**< Kernel queue for this buffer */
315 int while_locked; /**< Dispatch this buffer while locked */
323 } list; /**< Which list we're on */
325 int dev_priv_size; /**< Size of buffer private storage */
326 void *dev_private; /**< Per-buffer private storage */
329 /** bufs is one longer than it has to be */
330 typedef struct drm_waitlist {
331 int count; /**< Number of possible buffers */
332 drm_buf_t **bufs; /**< List of pointers to buffers */
333 drm_buf_t **rp; /**< Read pointer */
334 drm_buf_t **wp; /**< Write pointer */
335 drm_buf_t **end; /**< End pointer */
336 spinlock_t read_lock;
337 spinlock_t write_lock;
340 typedef struct drm_freelist {
341 int initialized; /**< Freelist in use */
342 atomic_t count; /**< Number of free buffers */
343 drm_buf_t *next; /**< End pointer */
345 wait_queue_head_t waiting; /**< Processes waiting on free bufs */
346 int low_mark; /**< Low water mark */
347 int high_mark; /**< High water mark */
348 atomic_t wfh; /**< If waiting for high mark */
352 typedef struct drm_dma_handle {
359 * Buffer entry. There is one of this for each buffer size order.
361 typedef struct drm_buf_entry {
362 int buf_size; /**< size */
363 int buf_count; /**< number of buffers */
364 drm_buf_t *buflist; /**< buffer list */
367 drm_dma_handle_t **seglist;
369 drm_freelist_t freelist;
372 /** File private data */
373 typedef struct drm_file {
380 unsigned long ioctl_count;
381 struct drm_file *next;
382 struct drm_file *prev;
383 struct drm_head *head;
384 int remove_auth_on_close;
385 unsigned long lock_count;
390 typedef struct drm_queue {
391 atomic_t use_count; /**< Outstanding uses (+1) */
392 atomic_t finalization; /**< Finalization in progress */
393 atomic_t block_count; /**< Count of processes waiting */
394 atomic_t block_read; /**< Queue blocked for reads */
395 wait_queue_head_t read_queue; /**< Processes waiting on block_read */
396 atomic_t block_write; /**< Queue blocked for writes */
397 wait_queue_head_t write_queue; /**< Processes waiting on block_write */
399 atomic_t total_queued; /**< Total queued statistic */
400 atomic_t total_flushed; /**< Total flushes statistic */
401 atomic_t total_locks; /**< Total locks statistics */
403 drm_ctx_flags_t flags; /**< Context preserving and 2D-only */
404 drm_waitlist_t waitlist; /**< Pending buffers */
405 wait_queue_head_t flush_queue; /**< Processes waiting until flush */
411 typedef struct drm_lock_data {
412 drm_hw_lock_t *hw_lock; /**< Hardware lock */
413 struct file *filp; /**< File descr of lock holder (0=kernel) */
414 wait_queue_head_t lock_queue; /**< Queue of blocked processes */
415 unsigned long lock_time; /**< Time of last lock in jiffies */
421 typedef struct drm_device_dma {
423 drm_buf_entry_t bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */
424 int buf_count; /**< total number of buffers */
425 drm_buf_t **buflist; /**< Vector of pointers into drm_device_dma::bufs */
427 int page_count; /**< number of pages */
428 unsigned long *pagelist; /**< page list */
429 unsigned long byte_count;
431 _DRM_DMA_USE_AGP = 0x01,
432 _DRM_DMA_USE_SG = 0x02,
433 _DRM_DMA_USE_FB = 0x04
439 * AGP memory entry. Stored as a doubly linked list.
441 typedef struct drm_agp_mem {
442 unsigned long handle; /**< handle */
444 unsigned long bound; /**< address */
446 struct drm_agp_mem *prev; /**< previous entry */
447 struct drm_agp_mem *next; /**< next entry */
453 * \sa drm_agp_init() and drm_device::agp.
455 typedef struct drm_agp_head {
456 DRM_AGP_KERN agp_info; /**< AGP device information */
457 drm_agp_mem_t *memory; /**< memory entries */
458 unsigned long mode; /**< AGP mode */
459 struct agp_bridge_data *bridge;
460 int enabled; /**< whether the AGP bus as been enabled */
461 int acquired; /**< whether the AGP device has been acquired */
464 int cant_use_aperture;
465 unsigned long page_mask;
469 * Scatter-gather memory.
471 typedef struct drm_sg_mem {
472 unsigned long handle;
475 struct page **pagelist;
479 typedef struct drm_sigdata {
487 typedef struct drm_map_list {
488 struct list_head head; /**< list head */
489 drm_hash_item_t hash;
490 drm_map_t *map; /**< mapping */
491 unsigned int user_token;
494 typedef drm_map_t drm_local_map_t;
497 * Context handle list
499 typedef struct drm_ctx_list {
500 struct list_head head; /**< list head */
501 drm_context_t handle; /**< context handle */
502 drm_file_t *tag; /**< associated fd private data */
505 typedef struct drm_vbl_sig {
506 struct list_head head;
507 unsigned int sequence;
509 struct task_struct *task;
512 /* location of GART table */
513 #define DRM_ATI_GART_MAIN 1
514 #define DRM_ATI_GART_FB 2
516 typedef struct ati_pcigart_info {
517 int gart_table_location;
521 drm_local_map_t mapping;
522 } drm_ati_pcigart_info;
525 * Generic memory manager structs
527 typedef struct drm_mm_node {
528 struct list_head fl_entry;
529 struct list_head ml_entry;
536 typedef struct drm_mm {
537 drm_mm_node_t root_node;
541 * DRM driver structure. This structure represent the common code for
542 * a family of cards. There will one drm_device for each card present
548 int (*load) (struct drm_device *, unsigned long flags);
549 int (*firstopen) (struct drm_device *);
550 int (*open) (struct drm_device *, drm_file_t *);
551 void (*preclose) (struct drm_device *, struct file * filp);
552 void (*postclose) (struct drm_device *, drm_file_t *);
553 void (*lastclose) (struct drm_device *);
554 int (*unload) (struct drm_device *);
555 int (*dma_ioctl) (DRM_IOCTL_ARGS);
556 void (*dma_ready) (struct drm_device *);
557 int (*dma_quiescent) (struct drm_device *);
558 int (*context_ctor) (struct drm_device * dev, int context);
559 int (*context_dtor) (struct drm_device * dev, int context);
560 int (*kernel_context_switch) (struct drm_device * dev, int old,
562 void (*kernel_context_switch_unlock) (struct drm_device * dev,
564 int (*vblank_wait) (struct drm_device * dev, unsigned int *sequence);
565 int (*dri_library_name) (struct drm_device *dev, char *buf);
568 * Called by \c drm_device_is_agp. Typically used to determine if a
569 * card is really attached to AGP or not.
571 * \param dev DRM device handle
574 * One of three values is returned depending on whether or not the
575 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
576 * (return of 1), or may or may not be AGP (return of 2).
578 int (*device_is_agp) (struct drm_device * dev);
580 /* these have to be filled in */
582 irqreturn_t(*irq_handler) (DRM_IRQ_ARGS);
583 void (*irq_preinstall) (struct drm_device * dev);
584 void (*irq_postinstall) (struct drm_device * dev);
585 void (*irq_uninstall) (struct drm_device * dev);
586 void (*reclaim_buffers) (struct drm_device * dev, struct file * filp);
587 void (*reclaim_buffers_locked) (struct drm_device *dev,
589 unsigned long (*get_map_ofs) (drm_map_t * map);
590 unsigned long (*get_reg_ofs) (struct drm_device * dev);
591 void (*set_version) (struct drm_device * dev, drm_set_version_t * sv);
602 drm_ioctl_desc_t *ioctls;
604 struct file_operations fops;
605 struct pci_driver pci_driver;
609 * DRM head structure. This structure represent a video head on a card
610 * that may contain multiple heads. Embed one per head of these in the
611 * private drm_device structure.
613 typedef struct drm_head {
614 int minor; /**< Minor device number */
615 struct drm_device *dev;
616 struct proc_dir_entry *dev_root; /**< proc directory entry */
617 dev_t device; /**< Device number for mknod */
618 struct class_device *dev_class;
622 * DRM device structure. This structure represent a complete card that
623 * may contain multiple heads.
625 typedef struct drm_device {
626 char *unique; /**< Unique identifier: e.g., busid */
627 int unique_len; /**< Length of unique field */
628 char *devname; /**< For /proc/interrupts */
629 int if_version; /**< Highest interface version set */
631 int blocked; /**< Blocked due to VC switch? */
635 spinlock_t count_lock; /**< For inuse, drm_device::open_count, drm_device::buf_use */
636 struct mutex struct_mutex; /**< For others */
639 /** \name Usage Counters */
641 int open_count; /**< Outstanding files open */
642 atomic_t ioctl_count; /**< Outstanding IOCTLs pending */
643 atomic_t vma_count; /**< Outstanding vma areas open */
644 int buf_use; /**< Buffers in use -- cannot alloc */
645 atomic_t buf_alloc; /**< Buffer allocation in progress */
648 /** \name Performance counters */
650 unsigned long counters;
651 drm_stat_type_t types[15];
655 /** \name Authentication */
657 drm_file_t *file_first; /**< file list head */
658 drm_file_t *file_last; /**< file list tail */
659 drm_open_hash_t magiclist; /**< magic hash table */
660 struct list_head magicfree;
663 /** \name Memory management */
665 drm_map_list_t *maplist; /**< Linked list of regions */
666 int map_count; /**< Number of mappable regions */
667 drm_open_hash_t map_hash; /**< User token hash table for maps */
669 /** \name Context handle management */
671 drm_ctx_list_t *ctxlist; /**< Linked list of context handles */
672 int ctx_count; /**< Number of context handles */
673 struct mutex ctxlist_mutex; /**< For ctxlist */
675 drm_map_t **context_sareas; /**< per-context SAREA's */
678 drm_vma_entry_t *vmalist; /**< List of vmas (for debugging) */
679 drm_lock_data_t lock; /**< Information on hardware lock */
682 /** \name DMA queues (contexts) */
684 int queue_count; /**< Number of active DMA queues */
685 int queue_reserved; /**< Number of reserved DMA queues */
686 int queue_slots; /**< Actual length of queuelist */
687 drm_queue_t **queuelist; /**< Vector of pointers to DMA queues */
688 drm_device_dma_t *dma; /**< Optional pointer for DMA support */
691 /** \name Context support */
693 int irq; /**< Interrupt used by board */
694 int irq_enabled; /**< True if irq handler is enabled */
695 __volatile__ long context_flag; /**< Context swapping flag */
696 __volatile__ long interrupt_flag; /**< Interruption handler flag */
697 __volatile__ long dma_flag; /**< DMA dispatch flag */
698 struct timer_list timer; /**< Timer for delaying ctx switch */
699 wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */
700 int last_checked; /**< Last context checked for DMA */
701 int last_context; /**< Last current context */
702 unsigned long last_switch; /**< jiffies at last context switch */
705 struct work_struct work;
706 /** \name VBLANK IRQ support */
709 wait_queue_head_t vbl_queue; /**< VBLANK wait queue */
710 atomic_t vbl_received;
712 drm_vbl_sig_t vbl_sigs; /**< signal list to send on VBLANK */
713 unsigned int vbl_pending;
719 struct fasync_struct *buf_async;/**< Processes waiting for SIGIO */
720 wait_queue_head_t buf_readers; /**< Processes waiting to read */
721 wait_queue_head_t buf_writers; /**< Processes waiting to ctx switch */
723 drm_agp_head_t *agp; /**< AGP data */
725 struct pci_dev *pdev; /**< PCI device structure */
726 int pci_vendor; /**< PCI vendor id */
727 int pci_device; /**< PCI device id */
729 struct pci_controller *hose;
731 drm_sg_mem_t *sg; /**< Scatter gather memory */
732 unsigned long *ctx_bitmap; /**< context bitmap */
733 void *dev_private; /**< device private data */
734 drm_sigdata_t sigdata; /**< For block_all_signals */
737 struct drm_driver *driver;
738 drm_local_map_t *agp_buffer_map;
739 unsigned int agp_buffer_token;
740 drm_head_t primary; /**< primary screen head */
743 static __inline__ int drm_core_check_feature(struct drm_device *dev,
746 return ((dev->driver->driver_features & feature) ? 1 : 0);
750 #define drm_get_pci_domain(dev) dev->hose->bus->number
752 #define drm_get_pci_domain(dev) 0
756 static inline int drm_core_has_AGP(struct drm_device *dev)
758 return drm_core_check_feature(dev, DRIVER_USE_AGP);
761 #define drm_core_has_AGP(dev) (0)
765 static inline int drm_core_has_MTRR(struct drm_device *dev)
767 return drm_core_check_feature(dev, DRIVER_USE_MTRR);
770 #define DRM_MTRR_WC MTRR_TYPE_WRCOMB
772 static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
775 return mtrr_add(offset, size, flags, 1);
778 static inline int drm_mtrr_del(int handle, unsigned long offset,
779 unsigned long size, unsigned int flags)
781 return mtrr_del(handle, offset, size);
785 #define drm_core_has_MTRR(dev) (0)
787 #define DRM_MTRR_WC 0
789 static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
795 static inline int drm_mtrr_del(int handle, unsigned long offset,
796 unsigned long size, unsigned int flags)
802 /******************************************************************/
803 /** \name Internal function definitions */
806 /* Driver support (drm_drv.h) */
807 extern int drm_init(struct drm_driver *driver);
808 extern void drm_exit(struct drm_driver *driver);
809 extern int drm_ioctl(struct inode *inode, struct file *filp,
810 unsigned int cmd, unsigned long arg);
811 extern long drm_compat_ioctl(struct file *filp,
812 unsigned int cmd, unsigned long arg);
813 extern int drm_lastclose(drm_device_t *dev);
815 /* Device support (drm_fops.h) */
816 extern int drm_open(struct inode *inode, struct file *filp);
817 extern int drm_stub_open(struct inode *inode, struct file *filp);
818 extern int drm_fasync(int fd, struct file *filp, int on);
819 extern int drm_release(struct inode *inode, struct file *filp);
821 /* Mapping support (drm_vm.h) */
822 extern int drm_mmap(struct file *filp, struct vm_area_struct *vma);
823 extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait);
825 /* Memory management support (drm_memory.h) */
826 #include "drm_memory.h"
827 extern void drm_mem_init(void);
828 extern int drm_mem_info(char *buf, char **start, off_t offset,
829 int request, int *eof, void *data);
830 extern void *drm_realloc(void *oldpt, size_t oldsize, size_t size, int area);
831 extern void *drm_ioremap(unsigned long offset, unsigned long size,
833 extern void drm_ioremapfree(void *pt, unsigned long size, drm_device_t * dev);
835 extern DRM_AGP_MEM *drm_alloc_agp(drm_device_t * dev, int pages, u32 type);
836 extern int drm_free_agp(DRM_AGP_MEM * handle, int pages);
837 extern int drm_bind_agp(DRM_AGP_MEM * handle, unsigned int start);
838 extern int drm_unbind_agp(DRM_AGP_MEM * handle);
840 /* Misc. IOCTL support (drm_ioctl.h) */
841 extern int drm_irq_by_busid(struct inode *inode, struct file *filp,
842 unsigned int cmd, unsigned long arg);
843 extern int drm_getunique(struct inode *inode, struct file *filp,
844 unsigned int cmd, unsigned long arg);
845 extern int drm_setunique(struct inode *inode, struct file *filp,
846 unsigned int cmd, unsigned long arg);
847 extern int drm_getmap(struct inode *inode, struct file *filp,
848 unsigned int cmd, unsigned long arg);
849 extern int drm_getclient(struct inode *inode, struct file *filp,
850 unsigned int cmd, unsigned long arg);
851 extern int drm_getstats(struct inode *inode, struct file *filp,
852 unsigned int cmd, unsigned long arg);
853 extern int drm_setversion(struct inode *inode, struct file *filp,
854 unsigned int cmd, unsigned long arg);
855 extern int drm_noop(struct inode *inode, struct file *filp,
856 unsigned int cmd, unsigned long arg);
858 /* Context IOCTL support (drm_context.h) */
859 extern int drm_resctx(struct inode *inode, struct file *filp,
860 unsigned int cmd, unsigned long arg);
861 extern int drm_addctx(struct inode *inode, struct file *filp,
862 unsigned int cmd, unsigned long arg);
863 extern int drm_modctx(struct inode *inode, struct file *filp,
864 unsigned int cmd, unsigned long arg);
865 extern int drm_getctx(struct inode *inode, struct file *filp,
866 unsigned int cmd, unsigned long arg);
867 extern int drm_switchctx(struct inode *inode, struct file *filp,
868 unsigned int cmd, unsigned long arg);
869 extern int drm_newctx(struct inode *inode, struct file *filp,
870 unsigned int cmd, unsigned long arg);
871 extern int drm_rmctx(struct inode *inode, struct file *filp,
872 unsigned int cmd, unsigned long arg);
874 extern int drm_ctxbitmap_init(drm_device_t * dev);
875 extern void drm_ctxbitmap_cleanup(drm_device_t * dev);
876 extern void drm_ctxbitmap_free(drm_device_t * dev, int ctx_handle);
878 extern int drm_setsareactx(struct inode *inode, struct file *filp,
879 unsigned int cmd, unsigned long arg);
880 extern int drm_getsareactx(struct inode *inode, struct file *filp,
881 unsigned int cmd, unsigned long arg);
883 /* Drawable IOCTL support (drm_drawable.h) */
884 extern int drm_adddraw(struct inode *inode, struct file *filp,
885 unsigned int cmd, unsigned long arg);
886 extern int drm_rmdraw(struct inode *inode, struct file *filp,
887 unsigned int cmd, unsigned long arg);
889 /* Authentication IOCTL support (drm_auth.h) */
890 extern int drm_getmagic(struct inode *inode, struct file *filp,
891 unsigned int cmd, unsigned long arg);
892 extern int drm_authmagic(struct inode *inode, struct file *filp,
893 unsigned int cmd, unsigned long arg);
895 /* Locking IOCTL support (drm_lock.h) */
896 extern int drm_lock(struct inode *inode, struct file *filp,
897 unsigned int cmd, unsigned long arg);
898 extern int drm_unlock(struct inode *inode, struct file *filp,
899 unsigned int cmd, unsigned long arg);
900 extern int drm_lock_take(__volatile__ unsigned int *lock, unsigned int context);
901 extern int drm_lock_free(drm_device_t * dev,
902 __volatile__ unsigned int *lock, unsigned int context);
904 /* Buffer management support (drm_bufs.h) */
905 extern int drm_addbufs_agp(drm_device_t * dev, drm_buf_desc_t * request);
906 extern int drm_addbufs_pci(drm_device_t * dev, drm_buf_desc_t * request);
907 extern int drm_addmap(drm_device_t * dev, unsigned int offset,
908 unsigned int size, drm_map_type_t type,
909 drm_map_flags_t flags, drm_local_map_t ** map_ptr);
910 extern int drm_addmap_ioctl(struct inode *inode, struct file *filp,
911 unsigned int cmd, unsigned long arg);
912 extern int drm_rmmap(drm_device_t * dev, drm_local_map_t * map);
913 extern int drm_rmmap_locked(drm_device_t * dev, drm_local_map_t * map);
914 extern int drm_rmmap_ioctl(struct inode *inode, struct file *filp,
915 unsigned int cmd, unsigned long arg);
917 extern int drm_order(unsigned long size);
918 extern int drm_addbufs(struct inode *inode, struct file *filp,
919 unsigned int cmd, unsigned long arg);
920 extern int drm_infobufs(struct inode *inode, struct file *filp,
921 unsigned int cmd, unsigned long arg);
922 extern int drm_markbufs(struct inode *inode, struct file *filp,
923 unsigned int cmd, unsigned long arg);
924 extern int drm_freebufs(struct inode *inode, struct file *filp,
925 unsigned int cmd, unsigned long arg);
926 extern int drm_mapbufs(struct inode *inode, struct file *filp,
927 unsigned int cmd, unsigned long arg);
928 extern unsigned long drm_get_resource_start(drm_device_t * dev,
929 unsigned int resource);
930 extern unsigned long drm_get_resource_len(drm_device_t * dev,
931 unsigned int resource);
933 /* DMA support (drm_dma.h) */
934 extern int drm_dma_setup(drm_device_t * dev);
935 extern void drm_dma_takedown(drm_device_t * dev);
936 extern void drm_free_buffer(drm_device_t * dev, drm_buf_t * buf);
937 extern void drm_core_reclaim_buffers(drm_device_t * dev, struct file *filp);
939 /* IRQ support (drm_irq.h) */
940 extern int drm_control(struct inode *inode, struct file *filp,
941 unsigned int cmd, unsigned long arg);
942 extern irqreturn_t drm_irq_handler(DRM_IRQ_ARGS);
943 extern int drm_irq_uninstall(drm_device_t * dev);
944 extern void drm_driver_irq_preinstall(drm_device_t * dev);
945 extern void drm_driver_irq_postinstall(drm_device_t * dev);
946 extern void drm_driver_irq_uninstall(drm_device_t * dev);
948 extern int drm_wait_vblank(struct inode *inode, struct file *filp,
949 unsigned int cmd, unsigned long arg);
950 extern int drm_vblank_wait(drm_device_t * dev, unsigned int *vbl_seq);
951 extern void drm_vbl_send_signals(drm_device_t * dev);
953 /* AGP/GART support (drm_agpsupport.h) */
954 extern drm_agp_head_t *drm_agp_init(drm_device_t * dev);
955 extern int drm_agp_acquire(drm_device_t * dev);
956 extern int drm_agp_acquire_ioctl(struct inode *inode, struct file *filp,
957 unsigned int cmd, unsigned long arg);
958 extern int drm_agp_release(drm_device_t * dev);
959 extern int drm_agp_release_ioctl(struct inode *inode, struct file *filp,
960 unsigned int cmd, unsigned long arg);
961 extern int drm_agp_enable(drm_device_t * dev, drm_agp_mode_t mode);
962 extern int drm_agp_enable_ioctl(struct inode *inode, struct file *filp,
963 unsigned int cmd, unsigned long arg);
964 extern int drm_agp_info(drm_device_t * dev, drm_agp_info_t * info);
965 extern int drm_agp_info_ioctl(struct inode *inode, struct file *filp,
966 unsigned int cmd, unsigned long arg);
967 extern int drm_agp_alloc(drm_device_t *dev, drm_agp_buffer_t *request);
968 extern int drm_agp_alloc_ioctl(struct inode *inode, struct file *filp,
969 unsigned int cmd, unsigned long arg);
970 extern int drm_agp_free(drm_device_t *dev, drm_agp_buffer_t *request);
971 extern int drm_agp_free_ioctl(struct inode *inode, struct file *filp,
972 unsigned int cmd, unsigned long arg);
973 extern int drm_agp_unbind(drm_device_t *dev, drm_agp_binding_t *request);
974 extern int drm_agp_unbind_ioctl(struct inode *inode, struct file *filp,
975 unsigned int cmd, unsigned long arg);
976 extern int drm_agp_bind(drm_device_t *dev, drm_agp_binding_t *request);
977 extern int drm_agp_bind_ioctl(struct inode *inode, struct file *filp,
978 unsigned int cmd, unsigned long arg);
979 extern DRM_AGP_MEM *drm_agp_allocate_memory(struct agp_bridge_data *bridge,
980 size_t pages, u32 type);
981 extern int drm_agp_free_memory(DRM_AGP_MEM * handle);
982 extern int drm_agp_bind_memory(DRM_AGP_MEM * handle, off_t start);
983 extern int drm_agp_unbind_memory(DRM_AGP_MEM * handle);
985 /* Stub support (drm_stub.h) */
986 extern int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
987 struct drm_driver *driver);
988 extern int drm_put_dev(drm_device_t * dev);
989 extern int drm_put_head(drm_head_t * head);
990 extern unsigned int drm_debug;
991 extern unsigned int drm_cards_limit;
992 extern drm_head_t **drm_heads;
993 extern struct class *drm_class;
994 extern struct proc_dir_entry *drm_proc_root;
996 /* Proc support (drm_proc.h) */
997 extern int drm_proc_init(drm_device_t * dev,
999 struct proc_dir_entry *root,
1000 struct proc_dir_entry **dev_root);
1001 extern int drm_proc_cleanup(int minor,
1002 struct proc_dir_entry *root,
1003 struct proc_dir_entry *dev_root);
1005 /* Scatter Gather Support (drm_scatter.h) */
1006 extern void drm_sg_cleanup(drm_sg_mem_t * entry);
1007 extern int drm_sg_alloc(struct inode *inode, struct file *filp,
1008 unsigned int cmd, unsigned long arg);
1009 extern int drm_sg_free(struct inode *inode, struct file *filp,
1010 unsigned int cmd, unsigned long arg);
1012 /* ATI PCIGART support (ati_pcigart.h) */
1013 extern int drm_ati_pcigart_init(drm_device_t * dev,
1014 drm_ati_pcigart_info * gart_info);
1015 extern int drm_ati_pcigart_cleanup(drm_device_t * dev,
1016 drm_ati_pcigart_info * gart_info);
1018 extern drm_dma_handle_t *drm_pci_alloc(drm_device_t * dev, size_t size,
1019 size_t align, dma_addr_t maxaddr);
1020 extern void __drm_pci_free(drm_device_t * dev, drm_dma_handle_t * dmah);
1021 extern void drm_pci_free(drm_device_t * dev, drm_dma_handle_t * dmah);
1023 /* sysfs support (drm_sysfs.c) */
1024 extern struct class *drm_sysfs_create(struct module *owner, char *name);
1025 extern void drm_sysfs_destroy(struct class *cs);
1026 extern struct class_device *drm_sysfs_device_add(struct class *cs,
1028 extern void drm_sysfs_device_remove(struct class_device *class_dev);
1031 * Basic memory manager support (drm_mm.c)
1033 extern drm_mm_node_t *drm_mm_get_block(drm_mm_node_t * parent,
1035 unsigned alignment);
1036 extern void drm_mm_put_block(drm_mm_t *mm, drm_mm_node_t *cur);
1037 extern drm_mm_node_t *drm_mm_search_free(const drm_mm_t *mm, unsigned long size,
1038 unsigned alignment, int best_match);
1039 extern int drm_mm_init(drm_mm_t *mm, unsigned long start, unsigned long size);
1040 extern void drm_mm_takedown(drm_mm_t *mm);
1042 /* Inline replacements for DRM_IOREMAP macros */
1043 static __inline__ void drm_core_ioremap(struct drm_map *map,
1044 struct drm_device *dev)
1046 map->handle = drm_ioremap(map->offset, map->size, dev);
1050 static __inline__ void drm_core_ioremap_nocache(struct drm_map *map,
1051 struct drm_device *dev)
1053 map->handle = drm_ioremap_nocache(map->offset, map->size, dev);
1057 static __inline__ void drm_core_ioremapfree(struct drm_map *map,
1058 struct drm_device *dev)
1060 if (map->handle && map->size)
1061 drm_ioremapfree(map->handle, map->size, dev);
1064 static __inline__ struct drm_map *drm_core_findmap(struct drm_device *dev,
1067 drm_map_list_t *_entry;
1068 list_for_each_entry(_entry, &dev->maplist->head, head)
1069 if (_entry->user_token == token)
1074 static __inline__ int drm_device_is_agp(drm_device_t * dev)
1076 if (dev->driver->device_is_agp != NULL) {
1077 int err = (*dev->driver->device_is_agp) (dev);
1084 return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP);
1087 static __inline__ int drm_device_is_pcie(drm_device_t * dev)
1089 return pci_find_capability(dev->pdev, PCI_CAP_ID_EXP);
1092 static __inline__ void drm_core_dropmap(struct drm_map *map)
1096 #ifndef DEBUG_MEMORY
1097 /** Wrapper around kmalloc() */
1098 static __inline__ void *drm_alloc(size_t size, int area)
1100 return kmalloc(size, GFP_KERNEL);
1103 /** Wrapper around kfree() */
1104 static __inline__ void drm_free(void *pt, size_t size, int area)
1109 /** Wrapper around kcalloc() */
1110 static __inline__ void *drm_calloc(size_t nmemb, size_t size, int area)
1112 return kcalloc(nmemb, size, GFP_KERNEL);
1115 extern void *drm_alloc(size_t size, int area);
1116 extern void drm_free(void *pt, size_t size, int area);
1117 extern void *drm_calloc(size_t nmemb, size_t size, int area);
1122 extern unsigned long drm_core_get_map_ofs(drm_map_t * map);
1123 extern unsigned long drm_core_get_reg_ofs(struct drm_device *dev);
1125 #ifndef pci_pretty_name
1126 #define pci_pretty_name(dev) ""
1129 #endif /* __KERNEL__ */