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 */
57 #include <linux/dma-mapping.h>
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 #include <linux/idr.h>
81 #define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE)))
82 #define __OS_HAS_MTRR (defined(CONFIG_MTRR))
87 #include "drm_os_linux.h"
88 #include "drm_hashtab.h"
90 /***********************************************************************/
91 /** \name DRM template customization defaults */
94 /* driver capabilities and requirements mask */
95 #define DRIVER_USE_AGP 0x1
96 #define DRIVER_REQUIRE_AGP 0x2
97 #define DRIVER_USE_MTRR 0x4
98 #define DRIVER_PCI_DMA 0x8
99 #define DRIVER_SG 0x10
100 #define DRIVER_HAVE_DMA 0x20
101 #define DRIVER_HAVE_IRQ 0x40
102 #define DRIVER_IRQ_SHARED 0x80
103 #define DRIVER_IRQ_VBL 0x100
104 #define DRIVER_DMA_QUEUE 0x200
105 #define DRIVER_FB_DMA 0x400
106 #define DRIVER_IRQ_VBL2 0x800
108 /***********************************************************************/
109 /** \name Begin the DRM... */
112 #define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then
113 also include looping detection. */
115 #define DRM_MAGIC_HASH_ORDER 4 /**< Size of key hash table. Must be power of 2. */
116 #define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */
117 #define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */
118 #define DRM_LOOPING_LIMIT 5000000
119 #define DRM_TIME_SLICE (HZ/20) /**< Time slice for GLXContexts */
120 #define DRM_LOCK_SLICE 1 /**< Time slice for lock, in jiffies */
122 #define DRM_FLAG_DEBUG 0x01
124 #define DRM_MEM_DMA 0
125 #define DRM_MEM_SAREA 1
126 #define DRM_MEM_DRIVER 2
127 #define DRM_MEM_MAGIC 3
128 #define DRM_MEM_IOCTLS 4
129 #define DRM_MEM_MAPS 5
130 #define DRM_MEM_VMAS 6
131 #define DRM_MEM_BUFS 7
132 #define DRM_MEM_SEGS 8
133 #define DRM_MEM_PAGES 9
134 #define DRM_MEM_FILES 10
135 #define DRM_MEM_QUEUES 11
136 #define DRM_MEM_CMDS 12
137 #define DRM_MEM_MAPPINGS 13
138 #define DRM_MEM_BUFLISTS 14
139 #define DRM_MEM_AGPLISTS 15
140 #define DRM_MEM_TOTALAGP 16
141 #define DRM_MEM_BOUNDAGP 17
142 #define DRM_MEM_CTXBITMAP 18
143 #define DRM_MEM_STUB 19
144 #define DRM_MEM_SGLISTS 20
145 #define DRM_MEM_CTXLIST 21
146 #define DRM_MEM_MM 22
147 #define DRM_MEM_HASHTAB 23
149 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
150 #define DRM_MAP_HASH_OFFSET 0x10000000
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)
216 #define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
217 #define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
218 #define DRM_WAITCOUNT(dev,idx) DRM_BUFCOUNT(&dev->queuelist[idx]->waitlist)
220 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
222 * Get the private SAREA mapping.
224 * \param _dev DRM device.
225 * \param _ctx context number.
226 * \param _map output mapping.
228 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
229 (_map) = (_dev)->context_sareas[_ctx]; \
233 * Test that the hardware lock is held by the caller, returning otherwise.
235 * \param dev DRM device.
236 * \param filp file pointer of the caller.
238 #define LOCK_TEST_WITH_RETURN( dev, file_priv ) \
240 if ( !_DRM_LOCK_IS_HELD( dev->lock.hw_lock->lock ) || \
241 dev->lock.file_priv != file_priv ) { \
242 DRM_ERROR( "%s called without lock held, held %d owner %p %p\n",\
243 __FUNCTION__, _DRM_LOCK_IS_HELD( dev->lock.hw_lock->lock ),\
244 dev->lock.file_priv, file_priv ); \
250 * Copy and IOCTL return string to user space
252 #define DRM_COPY( name, value ) \
253 len = strlen( value ); \
254 if ( len > name##_len ) len = name##_len; \
255 name##_len = strlen( value ); \
256 if ( len && name ) { \
257 if ( copy_to_user( name, value, len ) ) \
262 * Ioctl function type.
264 * \param inode device inode.
265 * \param file_priv DRM file private pointer.
266 * \param cmd command.
267 * \param arg argument.
269 typedef int drm_ioctl_t(struct drm_device *dev, void *data,
270 struct drm_file *file_priv);
272 typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
276 #define DRM_MASTER 0x2
277 #define DRM_ROOT_ONLY 0x4
279 struct drm_ioctl_desc {
286 * Creates a driver or general drm_ioctl_desc array entry for the given
287 * ioctl, for use by drm_ioctl().
289 #define DRM_IOCTL_DEF(ioctl, func, flags) \
290 [DRM_IOCTL_NR(ioctl)] = {ioctl, func, flags}
292 struct drm_magic_entry {
293 struct list_head head;
294 struct drm_hash_item hash_item;
295 struct drm_file *priv;
298 struct drm_vma_entry {
299 struct list_head head;
300 struct vm_area_struct *vma;
308 int idx; /**< Index into master buflist */
309 int total; /**< Buffer size */
310 int order; /**< log-base-2(total) */
311 int used; /**< Amount of buffer in use (for DMA) */
312 unsigned long offset; /**< Byte offset (used internally) */
313 void *address; /**< Address of buffer */
314 unsigned long bus_address; /**< Bus address of buffer */
315 struct drm_buf *next; /**< Kernel-only: used for free list */
316 __volatile__ int waiting; /**< On kernel DMA queue */
317 __volatile__ int pending; /**< On hardware DMA queue */
318 wait_queue_head_t dma_wait; /**< Processes waiting */
319 struct drm_file *file_priv; /**< Private of holding file descr */
320 int context; /**< Kernel queue for this buffer */
321 int while_locked; /**< Dispatch this buffer while locked */
329 } list; /**< Which list we're on */
331 int dev_priv_size; /**< Size of buffer private storage */
332 void *dev_private; /**< Per-buffer private storage */
335 /** bufs is one longer than it has to be */
336 struct drm_waitlist {
337 int count; /**< Number of possible buffers */
338 struct drm_buf **bufs; /**< List of pointers to buffers */
339 struct drm_buf **rp; /**< Read pointer */
340 struct drm_buf **wp; /**< Write pointer */
341 struct drm_buf **end; /**< End pointer */
342 spinlock_t read_lock;
343 spinlock_t write_lock;
346 struct drm_freelist {
347 int initialized; /**< Freelist in use */
348 atomic_t count; /**< Number of free buffers */
349 struct drm_buf *next; /**< End pointer */
351 wait_queue_head_t waiting; /**< Processes waiting on free bufs */
352 int low_mark; /**< Low water mark */
353 int high_mark; /**< High water mark */
354 atomic_t wfh; /**< If waiting for high mark */
358 typedef struct drm_dma_handle {
365 * Buffer entry. There is one of this for each buffer size order.
367 struct drm_buf_entry {
368 int buf_size; /**< size */
369 int buf_count; /**< number of buffers */
370 struct drm_buf *buflist; /**< buffer list */
373 struct drm_dma_handle **seglist;
375 struct drm_freelist freelist;
378 /** File private data */
386 unsigned long ioctl_count;
387 struct list_head lhead;
388 struct drm_head *head;
389 int remove_auth_on_close;
390 unsigned long lock_count;
397 atomic_t use_count; /**< Outstanding uses (+1) */
398 atomic_t finalization; /**< Finalization in progress */
399 atomic_t block_count; /**< Count of processes waiting */
400 atomic_t block_read; /**< Queue blocked for reads */
401 wait_queue_head_t read_queue; /**< Processes waiting on block_read */
402 atomic_t block_write; /**< Queue blocked for writes */
403 wait_queue_head_t write_queue; /**< Processes waiting on block_write */
404 atomic_t total_queued; /**< Total queued statistic */
405 atomic_t total_flushed; /**< Total flushes statistic */
406 atomic_t total_locks; /**< Total locks statistics */
407 enum drm_ctx_flags flags; /**< Context preserving and 2D-only */
408 struct drm_waitlist waitlist; /**< Pending buffers */
409 wait_queue_head_t flush_queue; /**< Processes waiting until flush */
415 struct drm_lock_data {
416 struct drm_hw_lock *hw_lock; /**< Hardware lock */
417 /** Private of lock holder's file (NULL=kernel) */
418 struct drm_file *file_priv;
419 wait_queue_head_t lock_queue; /**< Queue of blocked processes */
420 unsigned long lock_time; /**< Time of last lock in jiffies */
422 uint32_t kernel_waiters;
423 uint32_t user_waiters;
430 struct drm_device_dma {
432 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */
433 int buf_count; /**< total number of buffers */
434 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */
436 int page_count; /**< number of pages */
437 unsigned long *pagelist; /**< page list */
438 unsigned long byte_count;
440 _DRM_DMA_USE_AGP = 0x01,
441 _DRM_DMA_USE_SG = 0x02,
442 _DRM_DMA_USE_FB = 0x04,
443 _DRM_DMA_USE_PCI_RO = 0x08
449 * AGP memory entry. Stored as a doubly linked list.
452 unsigned long handle; /**< handle */
454 unsigned long bound; /**< address */
456 struct list_head head;
462 * \sa drm_agp_init() and drm_device::agp.
464 struct drm_agp_head {
465 DRM_AGP_KERN agp_info; /**< AGP device information */
466 struct list_head memory;
467 unsigned long mode; /**< AGP mode */
468 struct agp_bridge_data *bridge;
469 int enabled; /**< whether the AGP bus as been enabled */
470 int acquired; /**< whether the AGP device has been acquired */
473 int cant_use_aperture;
474 unsigned long page_mask;
478 * Scatter-gather memory.
481 unsigned long handle;
484 struct page **pagelist;
490 struct drm_hw_lock *lock;
495 * Generic memory manager structs
499 struct list_head fl_entry;
500 struct list_head ml_entry;
509 struct list_head fl_entry;
510 struct list_head ml_entry;
517 struct drm_map_list {
518 struct list_head head; /**< list head */
519 struct drm_hash_item hash;
520 struct drm_map *map; /**< mapping */
524 typedef struct drm_map drm_local_map_t;
527 * Context handle list
529 struct drm_ctx_list {
530 struct list_head head; /**< list head */
531 drm_context_t handle; /**< context handle */
532 struct drm_file *tag; /**< associated fd private data */
536 struct list_head head;
537 unsigned int sequence;
539 struct task_struct *task;
542 /* location of GART table */
543 #define DRM_ATI_GART_MAIN 1
544 #define DRM_ATI_GART_FB 2
546 #define DRM_ATI_GART_PCI 1
547 #define DRM_ATI_GART_PCIE 2
548 #define DRM_ATI_GART_IGP 3
550 struct drm_ati_pcigart_info {
551 int gart_table_location;
555 dma_addr_t table_mask;
556 struct drm_dma_handle *table_handle;
557 drm_local_map_t mapping;
562 * DRM driver structure. This structure represent the common code for
563 * a family of cards. There will one drm_device for each card present
567 int (*load) (struct drm_device *, unsigned long flags);
568 int (*firstopen) (struct drm_device *);
569 int (*open) (struct drm_device *, struct drm_file *);
570 void (*preclose) (struct drm_device *, struct drm_file *file_priv);
571 void (*postclose) (struct drm_device *, struct drm_file *);
572 void (*lastclose) (struct drm_device *);
573 int (*unload) (struct drm_device *);
574 int (*suspend) (struct drm_device *, pm_message_t state);
575 int (*resume) (struct drm_device *);
576 int (*dma_ioctl) (struct drm_device *dev, void *data, struct drm_file *file_priv);
577 void (*dma_ready) (struct drm_device *);
578 int (*dma_quiescent) (struct drm_device *);
579 int (*context_ctor) (struct drm_device *dev, int context);
580 int (*context_dtor) (struct drm_device *dev, int context);
581 int (*kernel_context_switch) (struct drm_device *dev, int old,
583 void (*kernel_context_switch_unlock) (struct drm_device *dev);
584 int (*vblank_wait) (struct drm_device *dev, unsigned int *sequence);
585 int (*vblank_wait2) (struct drm_device *dev, unsigned int *sequence);
586 int (*dri_library_name) (struct drm_device *dev, char *buf);
589 * Called by \c drm_device_is_agp. Typically used to determine if a
590 * card is really attached to AGP or not.
592 * \param dev DRM device handle
595 * One of three values is returned depending on whether or not the
596 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
597 * (return of 1), or may or may not be AGP (return of 2).
599 int (*device_is_agp) (struct drm_device *dev);
601 /* these have to be filled in */
603 irqreturn_t(*irq_handler) (DRM_IRQ_ARGS);
604 void (*irq_preinstall) (struct drm_device *dev);
605 void (*irq_postinstall) (struct drm_device *dev);
606 void (*irq_uninstall) (struct drm_device *dev);
607 void (*reclaim_buffers) (struct drm_device *dev,
608 struct drm_file * file_priv);
609 void (*reclaim_buffers_locked) (struct drm_device *dev,
610 struct drm_file *file_priv);
611 void (*reclaim_buffers_idlelocked) (struct drm_device *dev,
612 struct drm_file *file_priv);
613 unsigned long (*get_map_ofs) (struct drm_map * map);
614 unsigned long (*get_reg_ofs) (struct drm_device *dev);
615 void (*set_version) (struct drm_device *dev,
616 struct drm_set_version *sv);
627 struct drm_ioctl_desc *ioctls;
629 struct file_operations fops;
630 struct pci_driver pci_driver;
634 * DRM head structure. This structure represent a video head on a card
635 * that may contain multiple heads. Embed one per head of these in the
636 * private drm_device structure.
639 int minor; /**< Minor device number */
640 struct drm_device *dev;
641 struct proc_dir_entry *dev_root; /**< proc directory entry */
642 dev_t device; /**< Device number for mknod */
646 * DRM device structure. This structure represent a complete card that
647 * may contain multiple heads.
650 struct device dev; /**< Linux device */
651 char *unique; /**< Unique identifier: e.g., busid */
652 int unique_len; /**< Length of unique field */
653 char *devname; /**< For /proc/interrupts */
654 int if_version; /**< Highest interface version set */
656 int blocked; /**< Blocked due to VC switch? */
660 spinlock_t count_lock; /**< For inuse, drm_device::open_count, drm_device::buf_use */
661 struct mutex struct_mutex; /**< For others */
664 /** \name Usage Counters */
666 int open_count; /**< Outstanding files open */
667 atomic_t ioctl_count; /**< Outstanding IOCTLs pending */
668 atomic_t vma_count; /**< Outstanding vma areas open */
669 int buf_use; /**< Buffers in use -- cannot alloc */
670 atomic_t buf_alloc; /**< Buffer allocation in progress */
673 /** \name Performance counters */
675 unsigned long counters;
676 enum drm_stat_type types[15];
680 /** \name Authentication */
682 struct list_head filelist;
683 struct drm_open_hash magiclist; /**< magic hash table */
684 struct list_head magicfree;
687 /** \name Memory management */
689 struct list_head maplist; /**< Linked list of regions */
690 int map_count; /**< Number of mappable regions */
691 struct drm_open_hash map_hash; /**< User token hash table for maps */
693 /** \name Context handle management */
695 struct list_head ctxlist; /**< Linked list of context handles */
696 int ctx_count; /**< Number of context handles */
697 struct mutex ctxlist_mutex; /**< For ctxlist */
701 struct list_head vmalist; /**< List of vmas (for debugging) */
702 struct drm_lock_data lock; /**< Information on hardware lock */
705 /** \name DMA queues (contexts) */
707 int queue_count; /**< Number of active DMA queues */
708 int queue_reserved; /**< Number of reserved DMA queues */
709 int queue_slots; /**< Actual length of queuelist */
710 struct drm_queue **queuelist; /**< Vector of pointers to DMA queues */
711 struct drm_device_dma *dma; /**< Optional pointer for DMA support */
714 /** \name Context support */
716 int irq; /**< Interrupt used by board */
717 int irq_enabled; /**< True if irq handler is enabled */
718 __volatile__ long context_flag; /**< Context swapping flag */
719 __volatile__ long interrupt_flag; /**< Interruption handler flag */
720 __volatile__ long dma_flag; /**< DMA dispatch flag */
721 struct timer_list timer; /**< Timer for delaying ctx switch */
722 wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */
723 int last_checked; /**< Last context checked for DMA */
724 int last_context; /**< Last current context */
725 unsigned long last_switch; /**< jiffies at last context switch */
728 struct work_struct work;
729 /** \name VBLANK IRQ support */
732 wait_queue_head_t vbl_queue; /**< VBLANK wait queue */
733 atomic_t vbl_received;
734 atomic_t vbl_received2; /**< number of secondary VBLANK interrupts */
736 struct list_head vbl_sigs; /**< signal list to send on VBLANK */
737 struct list_head vbl_sigs2; /**< signals to send on secondary VBLANK */
738 unsigned int vbl_pending;
739 spinlock_t tasklet_lock; /**< For drm_locked_tasklet */
740 void (*locked_tasklet_func)(struct drm_device *dev);
746 struct fasync_struct *buf_async;/**< Processes waiting for SIGIO */
747 wait_queue_head_t buf_readers; /**< Processes waiting to read */
748 wait_queue_head_t buf_writers; /**< Processes waiting to ctx switch */
750 struct drm_agp_head *agp; /**< AGP data */
752 struct pci_dev *pdev; /**< PCI device structure */
753 int pci_vendor; /**< PCI vendor id */
754 int pci_device; /**< PCI device id */
756 struct pci_controller *hose;
758 struct drm_sg_mem *sg; /**< Scatter gather memory */
759 void *dev_private; /**< device private data */
760 struct drm_sigdata sigdata; /**< For block_all_signals */
763 struct drm_driver *driver;
764 drm_local_map_t *agp_buffer_map;
765 unsigned int agp_buffer_token;
766 struct drm_head primary; /**< primary screen head */
768 /** \name Drawable information */
775 static __inline__ int drm_core_check_feature(struct drm_device *dev,
778 return ((dev->driver->driver_features & feature) ? 1 : 0);
782 #define drm_get_pci_domain(dev) dev->hose->index
784 #define drm_get_pci_domain(dev) 0
788 static inline int drm_core_has_AGP(struct drm_device *dev)
790 return drm_core_check_feature(dev, DRIVER_USE_AGP);
793 #define drm_core_has_AGP(dev) (0)
797 static inline int drm_core_has_MTRR(struct drm_device *dev)
799 return drm_core_check_feature(dev, DRIVER_USE_MTRR);
802 #define DRM_MTRR_WC MTRR_TYPE_WRCOMB
804 static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
807 return mtrr_add(offset, size, flags, 1);
810 static inline int drm_mtrr_del(int handle, unsigned long offset,
811 unsigned long size, unsigned int flags)
813 return mtrr_del(handle, offset, size);
817 #define drm_core_has_MTRR(dev) (0)
819 #define DRM_MTRR_WC 0
821 static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
827 static inline int drm_mtrr_del(int handle, unsigned long offset,
828 unsigned long size, unsigned int flags)
834 /******************************************************************/
835 /** \name Internal function definitions */
838 /* Driver support (drm_drv.h) */
839 extern int drm_init(struct drm_driver *driver);
840 extern void drm_exit(struct drm_driver *driver);
841 extern int drm_ioctl(struct inode *inode, struct file *filp,
842 unsigned int cmd, unsigned long arg);
843 extern long drm_compat_ioctl(struct file *filp,
844 unsigned int cmd, unsigned long arg);
845 extern int drm_lastclose(struct drm_device *dev);
847 /* Device support (drm_fops.h) */
848 extern int drm_open(struct inode *inode, struct file *filp);
849 extern int drm_stub_open(struct inode *inode, struct file *filp);
850 extern int drm_fasync(int fd, struct file *filp, int on);
851 extern int drm_release(struct inode *inode, struct file *filp);
853 /* Mapping support (drm_vm.h) */
854 extern int drm_mmap(struct file *filp, struct vm_area_struct *vma);
855 extern unsigned long drm_core_get_map_ofs(struct drm_map * map);
856 extern unsigned long drm_core_get_reg_ofs(struct drm_device *dev);
857 extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait);
859 /* Memory management support (drm_memory.h) */
860 #include "drm_memory.h"
861 extern void drm_mem_init(void);
862 extern int drm_mem_info(char *buf, char **start, off_t offset,
863 int request, int *eof, void *data);
864 extern void *drm_realloc(void *oldpt, size_t oldsize, size_t size, int area);
866 extern DRM_AGP_MEM *drm_alloc_agp(struct drm_device *dev, int pages, u32 type);
867 extern int drm_free_agp(DRM_AGP_MEM * handle, int pages);
868 extern int drm_bind_agp(DRM_AGP_MEM * handle, unsigned int start);
869 extern int drm_unbind_agp(DRM_AGP_MEM * handle);
871 /* Misc. IOCTL support (drm_ioctl.h) */
872 extern int drm_irq_by_busid(struct drm_device *dev, void *data,
873 struct drm_file *file_priv);
874 extern int drm_getunique(struct drm_device *dev, void *data,
875 struct drm_file *file_priv);
876 extern int drm_setunique(struct drm_device *dev, void *data,
877 struct drm_file *file_priv);
878 extern int drm_getmap(struct drm_device *dev, void *data,
879 struct drm_file *file_priv);
880 extern int drm_getclient(struct drm_device *dev, void *data,
881 struct drm_file *file_priv);
882 extern int drm_getstats(struct drm_device *dev, void *data,
883 struct drm_file *file_priv);
884 extern int drm_setversion(struct drm_device *dev, void *data,
885 struct drm_file *file_priv);
886 extern int drm_noop(struct drm_device *dev, void *data,
887 struct drm_file *file_priv);
889 /* Context IOCTL support (drm_context.h) */
890 extern int drm_resctx(struct drm_device *dev, void *data,
891 struct drm_file *file_priv);
892 extern int drm_addctx(struct drm_device *dev, void *data,
893 struct drm_file *file_priv);
894 extern int drm_modctx(struct drm_device *dev, void *data,
895 struct drm_file *file_priv);
896 extern int drm_getctx(struct drm_device *dev, void *data,
897 struct drm_file *file_priv);
898 extern int drm_switchctx(struct drm_device *dev, void *data,
899 struct drm_file *file_priv);
900 extern int drm_newctx(struct drm_device *dev, void *data,
901 struct drm_file *file_priv);
902 extern int drm_rmctx(struct drm_device *dev, void *data,
903 struct drm_file *file_priv);
905 extern int drm_ctxbitmap_init(struct drm_device *dev);
906 extern void drm_ctxbitmap_cleanup(struct drm_device *dev);
907 extern void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
909 extern int drm_setsareactx(struct drm_device *dev, void *data,
910 struct drm_file *file_priv);
911 extern int drm_getsareactx(struct drm_device *dev, void *data,
912 struct drm_file *file_priv);
914 /* Drawable IOCTL support (drm_drawable.h) */
915 extern int drm_adddraw(struct drm_device *dev, void *data,
916 struct drm_file *file_priv);
917 extern int drm_rmdraw(struct drm_device *dev, void *data,
918 struct drm_file *file_priv);
919 extern int drm_update_drawable_info(struct drm_device *dev, void *data,
920 struct drm_file *file_priv);
921 extern struct drm_drawable_info *drm_get_drawable_info(struct drm_device *dev,
923 extern void drm_drawable_free_all(struct drm_device *dev);
925 /* Authentication IOCTL support (drm_auth.h) */
926 extern int drm_getmagic(struct drm_device *dev, void *data,
927 struct drm_file *file_priv);
928 extern int drm_authmagic(struct drm_device *dev, void *data,
929 struct drm_file *file_priv);
931 /* Locking IOCTL support (drm_lock.h) */
932 extern int drm_lock(struct drm_device *dev, void *data,
933 struct drm_file *file_priv);
934 extern int drm_unlock(struct drm_device *dev, void *data,
935 struct drm_file *file_priv);
936 extern int drm_lock_take(struct drm_lock_data *lock_data, unsigned int context);
937 extern int drm_lock_free(struct drm_lock_data *lock_data, unsigned int context);
938 extern void drm_idlelock_take(struct drm_lock_data *lock_data);
939 extern void drm_idlelock_release(struct drm_lock_data *lock_data);
942 * These are exported to drivers so that they can implement fencing using
943 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
946 extern int drm_i_have_hw_lock(struct drm_device *dev, struct drm_file *file_priv);
948 /* Buffer management support (drm_bufs.h) */
949 extern int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc * request);
950 extern int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc * request);
951 extern int drm_addmap(struct drm_device *dev, unsigned int offset,
952 unsigned int size, enum drm_map_type type,
953 enum drm_map_flags flags, drm_local_map_t ** map_ptr);
954 extern int drm_addmap_ioctl(struct drm_device *dev, void *data,
955 struct drm_file *file_priv);
956 extern int drm_rmmap(struct drm_device *dev, drm_local_map_t *map);
957 extern int drm_rmmap_locked(struct drm_device *dev, drm_local_map_t *map);
958 extern int drm_rmmap_ioctl(struct drm_device *dev, void *data,
959 struct drm_file *file_priv);
960 extern int drm_addbufs(struct drm_device *dev, void *data,
961 struct drm_file *file_priv);
962 extern int drm_infobufs(struct drm_device *dev, void *data,
963 struct drm_file *file_priv);
964 extern int drm_markbufs(struct drm_device *dev, void *data,
965 struct drm_file *file_priv);
966 extern int drm_freebufs(struct drm_device *dev, void *data,
967 struct drm_file *file_priv);
968 extern int drm_mapbufs(struct drm_device *dev, void *data,
969 struct drm_file *file_priv);
970 extern int drm_order(unsigned long size);
971 extern unsigned long drm_get_resource_start(struct drm_device *dev,
972 unsigned int resource);
973 extern unsigned long drm_get_resource_len(struct drm_device *dev,
974 unsigned int resource);
976 /* DMA support (drm_dma.h) */
977 extern int drm_dma_setup(struct drm_device *dev);
978 extern void drm_dma_takedown(struct drm_device *dev);
979 extern void drm_free_buffer(struct drm_device *dev, struct drm_buf * buf);
980 extern void drm_core_reclaim_buffers(struct drm_device *dev,
981 struct drm_file *filp);
983 /* IRQ support (drm_irq.h) */
984 extern int drm_control(struct drm_device *dev, void *data,
985 struct drm_file *file_priv);
986 extern irqreturn_t drm_irq_handler(DRM_IRQ_ARGS);
987 extern int drm_irq_uninstall(struct drm_device *dev);
988 extern void drm_driver_irq_preinstall(struct drm_device *dev);
989 extern void drm_driver_irq_postinstall(struct drm_device *dev);
990 extern void drm_driver_irq_uninstall(struct drm_device *dev);
992 extern int drm_wait_vblank(struct drm_device *dev, void *data,
993 struct drm_file *file_priv);
994 extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq);
995 extern void drm_vbl_send_signals(struct drm_device *dev);
996 extern void drm_locked_tasklet(struct drm_device *dev, void(*func)(struct drm_device*));
998 /* AGP/GART support (drm_agpsupport.h) */
999 extern struct drm_agp_head *drm_agp_init(struct drm_device *dev);
1000 extern int drm_agp_acquire(struct drm_device *dev);
1001 extern int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
1002 struct drm_file *file_priv);
1003 extern int drm_agp_release(struct drm_device *dev);
1004 extern int drm_agp_release_ioctl(struct drm_device *dev, void *data,
1005 struct drm_file *file_priv);
1006 extern int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode);
1007 extern int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
1008 struct drm_file *file_priv);
1009 extern int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info);
1010 extern int drm_agp_info_ioctl(struct drm_device *dev, void *data,
1011 struct drm_file *file_priv);
1012 extern int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request);
1013 extern int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
1014 struct drm_file *file_priv);
1015 extern int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request);
1016 extern int drm_agp_free_ioctl(struct drm_device *dev, void *data,
1017 struct drm_file *file_priv);
1018 extern int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request);
1019 extern int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
1020 struct drm_file *file_priv);
1021 extern int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
1022 extern int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
1023 struct drm_file *file_priv);
1024 extern DRM_AGP_MEM *drm_agp_allocate_memory(struct agp_bridge_data *bridge, size_t pages, u32 type);
1025 extern int drm_agp_free_memory(DRM_AGP_MEM * handle);
1026 extern int drm_agp_bind_memory(DRM_AGP_MEM * handle, off_t start);
1027 extern int drm_agp_unbind_memory(DRM_AGP_MEM * handle);
1029 /* Stub support (drm_stub.h) */
1030 extern int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
1031 struct drm_driver *driver);
1032 extern int drm_put_dev(struct drm_device *dev);
1033 extern int drm_put_head(struct drm_head *head);
1034 extern unsigned int drm_debug;
1035 extern unsigned int drm_cards_limit;
1036 extern struct drm_head **drm_heads;
1037 extern struct class *drm_class;
1038 extern struct proc_dir_entry *drm_proc_root;
1040 extern drm_local_map_t *drm_getsarea(struct drm_device *dev);
1042 /* Proc support (drm_proc.h) */
1043 extern int drm_proc_init(struct drm_device *dev,
1045 struct proc_dir_entry *root,
1046 struct proc_dir_entry **dev_root);
1047 extern int drm_proc_cleanup(int minor,
1048 struct proc_dir_entry *root,
1049 struct proc_dir_entry *dev_root);
1051 /* Scatter Gather Support (drm_scatter.h) */
1052 extern void drm_sg_cleanup(struct drm_sg_mem * entry);
1053 extern int drm_sg_alloc_ioctl(struct drm_device *dev, void *data,
1054 struct drm_file *file_priv);
1055 extern int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request);
1056 extern int drm_sg_free(struct drm_device *dev, void *data,
1057 struct drm_file *file_priv);
1059 /* ATI PCIGART support (ati_pcigart.h) */
1060 extern int drm_ati_pcigart_init(struct drm_device *dev,
1061 struct drm_ati_pcigart_info * gart_info);
1062 extern int drm_ati_pcigart_cleanup(struct drm_device *dev,
1063 struct drm_ati_pcigart_info * gart_info);
1065 extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
1066 size_t align, dma_addr_t maxaddr);
1067 extern void __drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
1068 extern void drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
1070 /* sysfs support (drm_sysfs.c) */
1071 struct drm_sysfs_class;
1072 extern struct class *drm_sysfs_create(struct module *owner, char *name);
1073 extern void drm_sysfs_destroy(void);
1074 extern int drm_sysfs_device_add(struct drm_device *dev, struct drm_head *head);
1075 extern void drm_sysfs_device_remove(struct drm_device *dev);
1078 * Basic memory manager support (drm_mm.c)
1080 extern struct drm_mm_node *drm_mm_get_block(struct drm_mm_node * parent,
1082 unsigned alignment);
1083 extern void drm_mm_put_block(struct drm_mm_node * cur);
1084 extern struct drm_mm_node *drm_mm_search_free(const struct drm_mm *mm, unsigned long size,
1085 unsigned alignment, int best_match);
1086 extern int drm_mm_init(struct drm_mm *mm, unsigned long start, unsigned long size);
1087 extern void drm_mm_takedown(struct drm_mm *mm);
1088 extern int drm_mm_clean(struct drm_mm *mm);
1089 extern unsigned long drm_mm_tail_space(struct drm_mm *mm);
1090 extern int drm_mm_remove_space_from_tail(struct drm_mm *mm, unsigned long size);
1091 extern int drm_mm_add_space_to_tail(struct drm_mm *mm, unsigned long size);
1093 extern void drm_core_ioremap(struct drm_map *map, struct drm_device *dev);
1094 extern void drm_core_ioremapfree(struct drm_map *map, struct drm_device *dev);
1096 static __inline__ struct drm_map *drm_core_findmap(struct drm_device *dev,
1099 struct drm_map_list *_entry;
1100 list_for_each_entry(_entry, &dev->maplist, head)
1101 if (_entry->user_token == token)
1106 static __inline__ int drm_device_is_agp(struct drm_device *dev)
1108 if (dev->driver->device_is_agp != NULL) {
1109 int err = (*dev->driver->device_is_agp) (dev);
1116 return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP);
1119 static __inline__ int drm_device_is_pcie(struct drm_device *dev)
1121 return pci_find_capability(dev->pdev, PCI_CAP_ID_EXP);
1124 static __inline__ void drm_core_dropmap(struct drm_map *map)
1128 #ifndef DEBUG_MEMORY
1129 /** Wrapper around kmalloc() */
1130 static __inline__ void *drm_alloc(size_t size, int area)
1132 return kmalloc(size, GFP_KERNEL);
1135 /** Wrapper around kfree() */
1136 static __inline__ void drm_free(void *pt, size_t size, int area)
1141 /** Wrapper around kcalloc() */
1142 static __inline__ void *drm_calloc(size_t nmemb, size_t size, int area)
1144 return kcalloc(nmemb, size, GFP_KERNEL);
1147 extern void *drm_alloc(size_t size, int area);
1148 extern void drm_free(void *pt, size_t size, int area);
1149 extern void *drm_calloc(size_t nmemb, size_t size, int area);
1154 #endif /* __KERNEL__ */