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_DMA_QUEUE 0x200
104 #define DRIVER_FB_DMA 0x400
106 /***********************************************************************/
107 /** \name Begin the DRM... */
110 #define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then
111 also include looping detection. */
113 #define DRM_MAGIC_HASH_ORDER 4 /**< Size of key hash table. Must be power of 2. */
114 #define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */
115 #define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */
116 #define DRM_LOOPING_LIMIT 5000000
117 #define DRM_TIME_SLICE (HZ/20) /**< Time slice for GLXContexts */
118 #define DRM_LOCK_SLICE 1 /**< Time slice for lock, in jiffies */
120 #define DRM_FLAG_DEBUG 0x01
122 #define DRM_MEM_DMA 0
123 #define DRM_MEM_SAREA 1
124 #define DRM_MEM_DRIVER 2
125 #define DRM_MEM_MAGIC 3
126 #define DRM_MEM_IOCTLS 4
127 #define DRM_MEM_MAPS 5
128 #define DRM_MEM_VMAS 6
129 #define DRM_MEM_BUFS 7
130 #define DRM_MEM_SEGS 8
131 #define DRM_MEM_PAGES 9
132 #define DRM_MEM_FILES 10
133 #define DRM_MEM_QUEUES 11
134 #define DRM_MEM_CMDS 12
135 #define DRM_MEM_MAPPINGS 13
136 #define DRM_MEM_BUFLISTS 14
137 #define DRM_MEM_AGPLISTS 15
138 #define DRM_MEM_TOTALAGP 16
139 #define DRM_MEM_BOUNDAGP 17
140 #define DRM_MEM_CTXBITMAP 18
141 #define DRM_MEM_STUB 19
142 #define DRM_MEM_SGLISTS 20
143 #define DRM_MEM_CTXLIST 21
144 #define DRM_MEM_MM 22
145 #define DRM_MEM_HASHTAB 23
147 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
148 #define DRM_MAP_HASH_OFFSET 0x10000000
152 /***********************************************************************/
153 /** \name Macros to make printk easier */
159 * \param fmt printf() like format string.
160 * \param arg arguments
162 #define DRM_ERROR(fmt, arg...) \
163 printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* " fmt , __FUNCTION__ , ##arg)
166 * Memory error output.
168 * \param area memory area where the error occurred.
169 * \param fmt printf() like format string.
170 * \param arg arguments
172 #define DRM_MEM_ERROR(area, fmt, arg...) \
173 printk(KERN_ERR "[" DRM_NAME ":%s:%s] *ERROR* " fmt , __FUNCTION__, \
174 drm_mem_stats[area].name , ##arg)
176 #define DRM_INFO(fmt, arg...) printk(KERN_INFO "[" DRM_NAME "] " fmt , ##arg)
181 * \param fmt printf() like format string.
182 * \param arg arguments
185 #define DRM_DEBUG(fmt, arg...) \
189 "[" DRM_NAME ":%s] " fmt , \
190 __FUNCTION__ , ##arg); \
193 #define DRM_DEBUG(fmt, arg...) do { } while (0)
196 #define DRM_PROC_LIMIT (PAGE_SIZE-80)
198 #define DRM_PROC_PRINT(fmt, arg...) \
199 len += sprintf(&buf[len], fmt , ##arg); \
200 if (len > DRM_PROC_LIMIT) { *eof = 1; return len - offset; }
202 #define DRM_PROC_PRINT_RET(ret, fmt, arg...) \
203 len += sprintf(&buf[len], fmt , ##arg); \
204 if (len > DRM_PROC_LIMIT) { ret; *eof = 1; return len - offset; }
208 /***********************************************************************/
209 /** \name Internal types and structures */
212 #define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x)
214 #define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
215 #define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
216 #define DRM_WAITCOUNT(dev,idx) DRM_BUFCOUNT(&dev->queuelist[idx]->waitlist)
218 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
220 * Get the private SAREA mapping.
222 * \param _dev DRM device.
223 * \param _ctx context number.
224 * \param _map output mapping.
226 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
227 (_map) = (_dev)->context_sareas[_ctx]; \
231 * Test that the hardware lock is held by the caller, returning otherwise.
233 * \param dev DRM device.
234 * \param filp file pointer of the caller.
236 #define LOCK_TEST_WITH_RETURN( dev, file_priv ) \
238 if ( !_DRM_LOCK_IS_HELD( dev->lock.hw_lock->lock ) || \
239 dev->lock.file_priv != file_priv ) { \
240 DRM_ERROR( "%s called without lock held, held %d owner %p %p\n",\
241 __FUNCTION__, _DRM_LOCK_IS_HELD( dev->lock.hw_lock->lock ),\
242 dev->lock.file_priv, file_priv ); \
248 * Copy and IOCTL return string to user space
250 #define DRM_COPY( name, value ) \
251 len = strlen( value ); \
252 if ( len > name##_len ) len = name##_len; \
253 name##_len = strlen( value ); \
254 if ( len && name ) { \
255 if ( copy_to_user( name, value, len ) ) \
260 * Ioctl function type.
262 * \param inode device inode.
263 * \param file_priv DRM file private pointer.
264 * \param cmd command.
265 * \param arg argument.
267 typedef int drm_ioctl_t(struct drm_device *dev, void *data,
268 struct drm_file *file_priv);
270 typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
274 #define DRM_MASTER 0x2
275 #define DRM_ROOT_ONLY 0x4
277 struct drm_ioctl_desc {
284 * Creates a driver or general drm_ioctl_desc array entry for the given
285 * ioctl, for use by drm_ioctl().
287 #define DRM_IOCTL_DEF(ioctl, func, flags) \
288 [DRM_IOCTL_NR(ioctl)] = {ioctl, func, flags}
290 struct drm_magic_entry {
291 struct list_head head;
292 struct drm_hash_item hash_item;
293 struct drm_file *priv;
296 struct drm_vma_entry {
297 struct list_head head;
298 struct vm_area_struct *vma;
306 int idx; /**< Index into master buflist */
307 int total; /**< Buffer size */
308 int order; /**< log-base-2(total) */
309 int used; /**< Amount of buffer in use (for DMA) */
310 unsigned long offset; /**< Byte offset (used internally) */
311 void *address; /**< Address of buffer */
312 unsigned long bus_address; /**< Bus address of buffer */
313 struct drm_buf *next; /**< Kernel-only: used for free list */
314 __volatile__ int waiting; /**< On kernel DMA queue */
315 __volatile__ int pending; /**< On hardware DMA queue */
316 wait_queue_head_t dma_wait; /**< Processes waiting */
317 struct drm_file *file_priv; /**< Private of holding file descr */
318 int context; /**< Kernel queue for this buffer */
319 int while_locked; /**< Dispatch this buffer while locked */
327 } list; /**< Which list we're on */
329 int dev_priv_size; /**< Size of buffer private storage */
330 void *dev_private; /**< Per-buffer private storage */
333 /** bufs is one longer than it has to be */
334 struct drm_waitlist {
335 int count; /**< Number of possible buffers */
336 struct drm_buf **bufs; /**< List of pointers to buffers */
337 struct drm_buf **rp; /**< Read pointer */
338 struct drm_buf **wp; /**< Write pointer */
339 struct drm_buf **end; /**< End pointer */
340 spinlock_t read_lock;
341 spinlock_t write_lock;
344 struct drm_freelist {
345 int initialized; /**< Freelist in use */
346 atomic_t count; /**< Number of free buffers */
347 struct drm_buf *next; /**< End pointer */
349 wait_queue_head_t waiting; /**< Processes waiting on free bufs */
350 int low_mark; /**< Low water mark */
351 int high_mark; /**< High water mark */
352 atomic_t wfh; /**< If waiting for high mark */
356 typedef struct drm_dma_handle {
363 * Buffer entry. There is one of this for each buffer size order.
365 struct drm_buf_entry {
366 int buf_size; /**< size */
367 int buf_count; /**< number of buffers */
368 struct drm_buf *buflist; /**< buffer list */
371 struct drm_dma_handle **seglist;
373 struct drm_freelist freelist;
376 /** File private data */
383 unsigned long ioctl_count;
384 struct list_head lhead;
385 struct drm_minor *minor;
386 int remove_auth_on_close;
387 unsigned long lock_count;
394 atomic_t use_count; /**< Outstanding uses (+1) */
395 atomic_t finalization; /**< Finalization in progress */
396 atomic_t block_count; /**< Count of processes waiting */
397 atomic_t block_read; /**< Queue blocked for reads */
398 wait_queue_head_t read_queue; /**< Processes waiting on block_read */
399 atomic_t block_write; /**< Queue blocked for writes */
400 wait_queue_head_t write_queue; /**< Processes waiting on block_write */
401 atomic_t total_queued; /**< Total queued statistic */
402 atomic_t total_flushed; /**< Total flushes statistic */
403 atomic_t total_locks; /**< Total locks statistics */
404 enum drm_ctx_flags flags; /**< Context preserving and 2D-only */
405 struct drm_waitlist waitlist; /**< Pending buffers */
406 wait_queue_head_t flush_queue; /**< Processes waiting until flush */
412 struct drm_lock_data {
413 struct drm_hw_lock *hw_lock; /**< Hardware lock */
414 /** Private of lock holder's file (NULL=kernel) */
415 struct drm_file *file_priv;
416 wait_queue_head_t lock_queue; /**< Queue of blocked processes */
417 unsigned long lock_time; /**< Time of last lock in jiffies */
419 uint32_t kernel_waiters;
420 uint32_t user_waiters;
427 struct drm_device_dma {
429 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */
430 int buf_count; /**< total number of buffers */
431 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */
433 int page_count; /**< number of pages */
434 unsigned long *pagelist; /**< page list */
435 unsigned long byte_count;
437 _DRM_DMA_USE_AGP = 0x01,
438 _DRM_DMA_USE_SG = 0x02,
439 _DRM_DMA_USE_FB = 0x04,
440 _DRM_DMA_USE_PCI_RO = 0x08
446 * AGP memory entry. Stored as a doubly linked list.
449 unsigned long handle; /**< handle */
451 unsigned long bound; /**< address */
453 struct list_head head;
459 * \sa drm_agp_init() and drm_device::agp.
461 struct drm_agp_head {
462 DRM_AGP_KERN agp_info; /**< AGP device information */
463 struct list_head memory;
464 unsigned long mode; /**< AGP mode */
465 struct agp_bridge_data *bridge;
466 int enabled; /**< whether the AGP bus as been enabled */
467 int acquired; /**< whether the AGP device has been acquired */
470 int cant_use_aperture;
471 unsigned long page_mask;
475 * Scatter-gather memory.
478 unsigned long handle;
481 struct page **pagelist;
487 struct drm_hw_lock *lock;
492 * Generic memory manager structs
496 struct list_head fl_entry;
497 struct list_head ml_entry;
506 struct list_head fl_entry;
507 struct list_head ml_entry;
514 struct drm_map_list {
515 struct list_head head; /**< list head */
516 struct drm_hash_item hash;
517 struct drm_map *map; /**< mapping */
521 typedef struct drm_map drm_local_map_t;
524 * Context handle list
526 struct drm_ctx_list {
527 struct list_head head; /**< list head */
528 drm_context_t handle; /**< context handle */
529 struct drm_file *tag; /**< associated fd private data */
533 struct list_head head;
534 unsigned int sequence;
536 struct task_struct *task;
539 /* location of GART table */
540 #define DRM_ATI_GART_MAIN 1
541 #define DRM_ATI_GART_FB 2
543 #define DRM_ATI_GART_PCI 1
544 #define DRM_ATI_GART_PCIE 2
545 #define DRM_ATI_GART_IGP 3
547 struct drm_ati_pcigart_info {
548 int gart_table_location;
552 dma_addr_t table_mask;
553 struct drm_dma_handle *table_handle;
554 drm_local_map_t mapping;
559 * DRM driver structure. This structure represent the common code for
560 * a family of cards. There will one drm_device for each card present
564 int (*load) (struct drm_device *, unsigned long flags);
565 int (*firstopen) (struct drm_device *);
566 int (*open) (struct drm_device *, struct drm_file *);
567 void (*preclose) (struct drm_device *, struct drm_file *file_priv);
568 void (*postclose) (struct drm_device *, struct drm_file *);
569 void (*lastclose) (struct drm_device *);
570 int (*unload) (struct drm_device *);
571 int (*suspend) (struct drm_device *, pm_message_t state);
572 int (*resume) (struct drm_device *);
573 int (*dma_ioctl) (struct drm_device *dev, void *data, struct drm_file *file_priv);
574 void (*dma_ready) (struct drm_device *);
575 int (*dma_quiescent) (struct drm_device *);
576 int (*context_ctor) (struct drm_device *dev, int context);
577 int (*context_dtor) (struct drm_device *dev, int context);
578 int (*kernel_context_switch) (struct drm_device *dev, int old,
580 void (*kernel_context_switch_unlock) (struct drm_device * dev);
582 * get_vblank_counter - get raw hardware vblank counter
584 * @crtc: counter to fetch
586 * Driver callback for fetching a raw hardware vblank counter
587 * for @crtc. If a device doesn't have a hardware counter, the
588 * driver can simply return the value of drm_vblank_count and
589 * make the enable_vblank() and disable_vblank() hooks into no-ops,
590 * leaving interrupts enabled at all times.
592 * Wraparound handling and loss of events due to modesetting is dealt
593 * with in the DRM core code.
596 * Raw vblank counter value.
598 u32 (*get_vblank_counter) (struct drm_device *dev, int crtc);
601 * enable_vblank - enable vblank interrupt events
603 * @crtc: which irq to enable
605 * Enable vblank interrupts for @crtc. If the device doesn't have
606 * a hardware vblank counter, this routine should be a no-op, since
607 * interrupts will have to stay on to keep the count accurate.
610 * Zero on success, appropriate errno if the given @crtc's vblank
611 * interrupt cannot be enabled.
613 int (*enable_vblank) (struct drm_device *dev, int crtc);
616 * disable_vblank - disable vblank interrupt events
618 * @crtc: which irq to enable
620 * Disable vblank interrupts for @crtc. If the device doesn't have
621 * a hardware vblank counter, this routine should be a no-op, since
622 * interrupts will have to stay on to keep the count accurate.
624 void (*disable_vblank) (struct drm_device *dev, int crtc);
625 int (*dri_library_name) (struct drm_device *dev, char * buf);
628 * Called by \c drm_device_is_agp. Typically used to determine if a
629 * card is really attached to AGP or not.
631 * \param dev DRM device handle
634 * One of three values is returned depending on whether or not the
635 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
636 * (return of 1), or may or may not be AGP (return of 2).
638 int (*device_is_agp) (struct drm_device *dev);
640 /* these have to be filled in */
642 irqreturn_t(*irq_handler) (DRM_IRQ_ARGS);
643 void (*irq_preinstall) (struct drm_device *dev);
644 int (*irq_postinstall) (struct drm_device *dev);
645 void (*irq_uninstall) (struct drm_device *dev);
646 void (*reclaim_buffers) (struct drm_device *dev,
647 struct drm_file * file_priv);
648 void (*reclaim_buffers_locked) (struct drm_device *dev,
649 struct drm_file *file_priv);
650 void (*reclaim_buffers_idlelocked) (struct drm_device *dev,
651 struct drm_file *file_priv);
652 unsigned long (*get_map_ofs) (struct drm_map * map);
653 unsigned long (*get_reg_ofs) (struct drm_device *dev);
654 void (*set_version) (struct drm_device *dev,
655 struct drm_set_version *sv);
666 struct drm_ioctl_desc *ioctls;
668 struct file_operations fops;
669 struct pci_driver pci_driver;
672 #define DRM_MINOR_UNASSIGNED 0
673 #define DRM_MINOR_LEGACY 1
676 * DRM minor structure. This structure represents a drm minor number.
679 int index; /**< Minor device number */
680 int type; /**< Control or render */
681 dev_t device; /**< Device number for mknod */
682 struct device kdev; /**< Linux device */
683 struct drm_device *dev;
684 struct proc_dir_entry *dev_root; /**< proc directory entry */
688 * DRM device structure. This structure represent a complete card that
689 * may contain multiple heads.
692 char *unique; /**< Unique identifier: e.g., busid */
693 int unique_len; /**< Length of unique field */
694 char *devname; /**< For /proc/interrupts */
695 int if_version; /**< Highest interface version set */
697 int blocked; /**< Blocked due to VC switch? */
701 spinlock_t count_lock; /**< For inuse, drm_device::open_count, drm_device::buf_use */
702 struct mutex struct_mutex; /**< For others */
705 /** \name Usage Counters */
707 int open_count; /**< Outstanding files open */
708 atomic_t ioctl_count; /**< Outstanding IOCTLs pending */
709 atomic_t vma_count; /**< Outstanding vma areas open */
710 int buf_use; /**< Buffers in use -- cannot alloc */
711 atomic_t buf_alloc; /**< Buffer allocation in progress */
714 /** \name Performance counters */
716 unsigned long counters;
717 enum drm_stat_type types[15];
721 /** \name Authentication */
723 struct list_head filelist;
724 struct drm_open_hash magiclist; /**< magic hash table */
725 struct list_head magicfree;
728 /** \name Memory management */
730 struct list_head maplist; /**< Linked list of regions */
731 int map_count; /**< Number of mappable regions */
732 struct drm_open_hash map_hash; /**< User token hash table for maps */
734 /** \name Context handle management */
736 struct list_head ctxlist; /**< Linked list of context handles */
737 int ctx_count; /**< Number of context handles */
738 struct mutex ctxlist_mutex; /**< For ctxlist */
742 struct list_head vmalist; /**< List of vmas (for debugging) */
743 struct drm_lock_data lock; /**< Information on hardware lock */
746 /** \name DMA queues (contexts) */
748 int queue_count; /**< Number of active DMA queues */
749 int queue_reserved; /**< Number of reserved DMA queues */
750 int queue_slots; /**< Actual length of queuelist */
751 struct drm_queue **queuelist; /**< Vector of pointers to DMA queues */
752 struct drm_device_dma *dma; /**< Optional pointer for DMA support */
755 /** \name Context support */
757 int irq; /**< Interrupt used by board */
758 int irq_enabled; /**< True if irq handler is enabled */
759 __volatile__ long context_flag; /**< Context swapping flag */
760 __volatile__ long interrupt_flag; /**< Interruption handler flag */
761 __volatile__ long dma_flag; /**< DMA dispatch flag */
762 struct timer_list timer; /**< Timer for delaying ctx switch */
763 wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */
764 int last_checked; /**< Last context checked for DMA */
765 int last_context; /**< Last current context */
766 unsigned long last_switch; /**< jiffies at last context switch */
769 struct work_struct work;
770 /** \name VBLANK IRQ support */
773 wait_queue_head_t *vbl_queue; /**< VBLANK wait queue */
774 atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */
776 struct list_head *vbl_sigs; /**< signal list to send on VBLANK */
777 atomic_t vbl_signal_pending; /* number of signals pending on all crtcs*/
778 atomic_t *vblank_refcount; /* number of users of vblank interrupts per crtc */
779 u32 *last_vblank; /* protected by dev->vbl_lock, used */
780 /* for wraparound handling */
781 u32 *vblank_offset; /* used to track how many vblanks */
782 int *vblank_enabled; /* so we don't call enable more than
784 u32 *vblank_premodeset; /* were lost during modeset */
785 struct timer_list vblank_disable_timer;
787 unsigned long max_vblank_count; /**< size of vblank counter register */
788 spinlock_t tasklet_lock; /**< For drm_locked_tasklet */
789 void (*locked_tasklet_func)(struct drm_device *dev);
795 struct fasync_struct *buf_async;/**< Processes waiting for SIGIO */
796 wait_queue_head_t buf_readers; /**< Processes waiting to read */
797 wait_queue_head_t buf_writers; /**< Processes waiting to ctx switch */
799 struct drm_agp_head *agp; /**< AGP data */
801 struct pci_dev *pdev; /**< PCI device structure */
802 int pci_vendor; /**< PCI vendor id */
803 int pci_device; /**< PCI device id */
805 struct pci_controller *hose;
807 int num_crtcs; /**< Number of CRTCs on this device */
808 struct drm_sg_mem *sg; /**< Scatter gather memory */
809 void *dev_private; /**< device private data */
810 struct drm_sigdata sigdata; /**< For block_all_signals */
813 struct drm_driver *driver;
814 drm_local_map_t *agp_buffer_map;
815 unsigned int agp_buffer_token;
816 struct drm_minor *primary; /**< render type primary screen head */
818 /** \name Drawable information */
825 static __inline__ int drm_core_check_feature(struct drm_device *dev,
828 return ((dev->driver->driver_features & feature) ? 1 : 0);
832 #define drm_get_pci_domain(dev) dev->hose->index
834 #define drm_get_pci_domain(dev) 0
838 static inline int drm_core_has_AGP(struct drm_device *dev)
840 return drm_core_check_feature(dev, DRIVER_USE_AGP);
843 #define drm_core_has_AGP(dev) (0)
847 static inline int drm_core_has_MTRR(struct drm_device *dev)
849 return drm_core_check_feature(dev, DRIVER_USE_MTRR);
852 #define DRM_MTRR_WC MTRR_TYPE_WRCOMB
854 static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
857 return mtrr_add(offset, size, flags, 1);
860 static inline int drm_mtrr_del(int handle, unsigned long offset,
861 unsigned long size, unsigned int flags)
863 return mtrr_del(handle, offset, size);
867 #define drm_core_has_MTRR(dev) (0)
869 #define DRM_MTRR_WC 0
871 static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
877 static inline int drm_mtrr_del(int handle, unsigned long offset,
878 unsigned long size, unsigned int flags)
884 /******************************************************************/
885 /** \name Internal function definitions */
888 /* Driver support (drm_drv.h) */
889 extern int drm_init(struct drm_driver *driver);
890 extern void drm_exit(struct drm_driver *driver);
891 extern int drm_ioctl(struct inode *inode, struct file *filp,
892 unsigned int cmd, unsigned long arg);
893 extern long drm_compat_ioctl(struct file *filp,
894 unsigned int cmd, unsigned long arg);
895 extern int drm_lastclose(struct drm_device *dev);
897 /* Device support (drm_fops.h) */
898 extern int drm_open(struct inode *inode, struct file *filp);
899 extern int drm_stub_open(struct inode *inode, struct file *filp);
900 extern int drm_fasync(int fd, struct file *filp, int on);
901 extern int drm_release(struct inode *inode, struct file *filp);
903 /* Mapping support (drm_vm.h) */
904 extern int drm_mmap(struct file *filp, struct vm_area_struct *vma);
905 extern unsigned long drm_core_get_map_ofs(struct drm_map * map);
906 extern unsigned long drm_core_get_reg_ofs(struct drm_device *dev);
907 extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait);
909 /* Memory management support (drm_memory.h) */
910 #include "drm_memory.h"
911 extern void drm_mem_init(void);
912 extern int drm_mem_info(char *buf, char **start, off_t offset,
913 int request, int *eof, void *data);
914 extern void *drm_realloc(void *oldpt, size_t oldsize, size_t size, int area);
916 extern DRM_AGP_MEM *drm_alloc_agp(struct drm_device *dev, int pages, u32 type);
917 extern int drm_free_agp(DRM_AGP_MEM * handle, int pages);
918 extern int drm_bind_agp(DRM_AGP_MEM * handle, unsigned int start);
919 extern int drm_unbind_agp(DRM_AGP_MEM * handle);
921 /* Misc. IOCTL support (drm_ioctl.h) */
922 extern int drm_irq_by_busid(struct drm_device *dev, void *data,
923 struct drm_file *file_priv);
924 extern int drm_getunique(struct drm_device *dev, void *data,
925 struct drm_file *file_priv);
926 extern int drm_setunique(struct drm_device *dev, void *data,
927 struct drm_file *file_priv);
928 extern int drm_getmap(struct drm_device *dev, void *data,
929 struct drm_file *file_priv);
930 extern int drm_getclient(struct drm_device *dev, void *data,
931 struct drm_file *file_priv);
932 extern int drm_getstats(struct drm_device *dev, void *data,
933 struct drm_file *file_priv);
934 extern int drm_setversion(struct drm_device *dev, void *data,
935 struct drm_file *file_priv);
936 extern int drm_noop(struct drm_device *dev, void *data,
937 struct drm_file *file_priv);
939 /* Context IOCTL support (drm_context.h) */
940 extern int drm_resctx(struct drm_device *dev, void *data,
941 struct drm_file *file_priv);
942 extern int drm_addctx(struct drm_device *dev, void *data,
943 struct drm_file *file_priv);
944 extern int drm_modctx(struct drm_device *dev, void *data,
945 struct drm_file *file_priv);
946 extern int drm_getctx(struct drm_device *dev, void *data,
947 struct drm_file *file_priv);
948 extern int drm_switchctx(struct drm_device *dev, void *data,
949 struct drm_file *file_priv);
950 extern int drm_newctx(struct drm_device *dev, void *data,
951 struct drm_file *file_priv);
952 extern int drm_rmctx(struct drm_device *dev, void *data,
953 struct drm_file *file_priv);
955 extern int drm_ctxbitmap_init(struct drm_device *dev);
956 extern void drm_ctxbitmap_cleanup(struct drm_device *dev);
957 extern void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
959 extern int drm_setsareactx(struct drm_device *dev, void *data,
960 struct drm_file *file_priv);
961 extern int drm_getsareactx(struct drm_device *dev, void *data,
962 struct drm_file *file_priv);
964 /* Drawable IOCTL support (drm_drawable.h) */
965 extern int drm_adddraw(struct drm_device *dev, void *data,
966 struct drm_file *file_priv);
967 extern int drm_rmdraw(struct drm_device *dev, void *data,
968 struct drm_file *file_priv);
969 extern int drm_update_drawable_info(struct drm_device *dev, void *data,
970 struct drm_file *file_priv);
971 extern struct drm_drawable_info *drm_get_drawable_info(struct drm_device *dev,
973 extern void drm_drawable_free_all(struct drm_device *dev);
975 /* Authentication IOCTL support (drm_auth.h) */
976 extern int drm_getmagic(struct drm_device *dev, void *data,
977 struct drm_file *file_priv);
978 extern int drm_authmagic(struct drm_device *dev, void *data,
979 struct drm_file *file_priv);
981 /* Locking IOCTL support (drm_lock.h) */
982 extern int drm_lock(struct drm_device *dev, void *data,
983 struct drm_file *file_priv);
984 extern int drm_unlock(struct drm_device *dev, void *data,
985 struct drm_file *file_priv);
986 extern int drm_lock_take(struct drm_lock_data *lock_data, unsigned int context);
987 extern int drm_lock_free(struct drm_lock_data *lock_data, unsigned int context);
988 extern void drm_idlelock_take(struct drm_lock_data *lock_data);
989 extern void drm_idlelock_release(struct drm_lock_data *lock_data);
992 * These are exported to drivers so that they can implement fencing using
993 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
996 extern int drm_i_have_hw_lock(struct drm_device *dev, struct drm_file *file_priv);
998 /* Buffer management support (drm_bufs.h) */
999 extern int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc * request);
1000 extern int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc * request);
1001 extern int drm_addmap(struct drm_device *dev, unsigned int offset,
1002 unsigned int size, enum drm_map_type type,
1003 enum drm_map_flags flags, drm_local_map_t ** map_ptr);
1004 extern int drm_addmap_ioctl(struct drm_device *dev, void *data,
1005 struct drm_file *file_priv);
1006 extern int drm_rmmap(struct drm_device *dev, drm_local_map_t *map);
1007 extern int drm_rmmap_locked(struct drm_device *dev, drm_local_map_t *map);
1008 extern int drm_rmmap_ioctl(struct drm_device *dev, void *data,
1009 struct drm_file *file_priv);
1010 extern int drm_addbufs(struct drm_device *dev, void *data,
1011 struct drm_file *file_priv);
1012 extern int drm_infobufs(struct drm_device *dev, void *data,
1013 struct drm_file *file_priv);
1014 extern int drm_markbufs(struct drm_device *dev, void *data,
1015 struct drm_file *file_priv);
1016 extern int drm_freebufs(struct drm_device *dev, void *data,
1017 struct drm_file *file_priv);
1018 extern int drm_mapbufs(struct drm_device *dev, void *data,
1019 struct drm_file *file_priv);
1020 extern int drm_order(unsigned long size);
1021 extern unsigned long drm_get_resource_start(struct drm_device *dev,
1022 unsigned int resource);
1023 extern unsigned long drm_get_resource_len(struct drm_device *dev,
1024 unsigned int resource);
1026 /* DMA support (drm_dma.h) */
1027 extern int drm_dma_setup(struct drm_device *dev);
1028 extern void drm_dma_takedown(struct drm_device *dev);
1029 extern void drm_free_buffer(struct drm_device *dev, struct drm_buf * buf);
1030 extern void drm_core_reclaim_buffers(struct drm_device *dev,
1031 struct drm_file *filp);
1033 /* IRQ support (drm_irq.h) */
1034 extern int drm_control(struct drm_device *dev, void *data,
1035 struct drm_file *file_priv);
1036 extern irqreturn_t drm_irq_handler(DRM_IRQ_ARGS);
1037 extern int drm_irq_uninstall(struct drm_device *dev);
1038 extern void drm_driver_irq_preinstall(struct drm_device *dev);
1039 extern void drm_driver_irq_postinstall(struct drm_device *dev);
1040 extern void drm_driver_irq_uninstall(struct drm_device *dev);
1042 extern int drm_vblank_init(struct drm_device *dev, int num_crtcs);
1043 extern int drm_wait_vblank(struct drm_device *dev, void *data, struct drm_file *filp);
1044 extern int drm_vblank_wait(struct drm_device * dev, unsigned int *vbl_seq);
1045 extern void drm_locked_tasklet(struct drm_device *dev, void(*func)(struct drm_device*));
1046 extern u32 drm_vblank_count(struct drm_device *dev, int crtc);
1047 extern void drm_update_vblank_count(struct drm_device *dev, int crtc);
1048 extern void drm_handle_vblank(struct drm_device *dev, int crtc);
1049 extern int drm_vblank_get(struct drm_device *dev, int crtc);
1050 extern void drm_vblank_put(struct drm_device *dev, int crtc);
1052 /* Modesetting support */
1053 extern int drm_modeset_ctl(struct drm_device *dev, void *data,
1054 struct drm_file *file_priv);
1056 /* AGP/GART support (drm_agpsupport.h) */
1057 extern struct drm_agp_head *drm_agp_init(struct drm_device *dev);
1058 extern int drm_agp_acquire(struct drm_device *dev);
1059 extern int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
1060 struct drm_file *file_priv);
1061 extern int drm_agp_release(struct drm_device *dev);
1062 extern int drm_agp_release_ioctl(struct drm_device *dev, void *data,
1063 struct drm_file *file_priv);
1064 extern int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode);
1065 extern int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
1066 struct drm_file *file_priv);
1067 extern int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info);
1068 extern int drm_agp_info_ioctl(struct drm_device *dev, void *data,
1069 struct drm_file *file_priv);
1070 extern int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request);
1071 extern int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
1072 struct drm_file *file_priv);
1073 extern int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request);
1074 extern int drm_agp_free_ioctl(struct drm_device *dev, void *data,
1075 struct drm_file *file_priv);
1076 extern int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request);
1077 extern int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
1078 struct drm_file *file_priv);
1079 extern int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
1080 extern int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
1081 struct drm_file *file_priv);
1082 extern DRM_AGP_MEM *drm_agp_allocate_memory(struct agp_bridge_data *bridge, size_t pages, u32 type);
1083 extern int drm_agp_free_memory(DRM_AGP_MEM * handle);
1084 extern int drm_agp_bind_memory(DRM_AGP_MEM * handle, off_t start);
1085 extern int drm_agp_unbind_memory(DRM_AGP_MEM * handle);
1087 /* Stub support (drm_stub.h) */
1088 extern int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
1089 struct drm_driver *driver);
1090 extern int drm_put_dev(struct drm_device *dev);
1091 extern int drm_put_minor(struct drm_minor **minor);
1092 extern unsigned int drm_debug;
1094 extern struct class *drm_class;
1095 extern struct proc_dir_entry *drm_proc_root;
1097 extern struct idr drm_minors_idr;
1099 extern drm_local_map_t *drm_getsarea(struct drm_device *dev);
1101 /* Proc support (drm_proc.h) */
1102 extern int drm_proc_init(struct drm_minor *minor, int minor_id,
1103 struct proc_dir_entry *root);
1104 extern int drm_proc_cleanup(struct drm_minor *minor, struct proc_dir_entry *root);
1106 /* Scatter Gather Support (drm_scatter.h) */
1107 extern void drm_sg_cleanup(struct drm_sg_mem * entry);
1108 extern int drm_sg_alloc_ioctl(struct drm_device *dev, void *data,
1109 struct drm_file *file_priv);
1110 extern int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request);
1111 extern int drm_sg_free(struct drm_device *dev, void *data,
1112 struct drm_file *file_priv);
1114 /* ATI PCIGART support (ati_pcigart.h) */
1115 extern int drm_ati_pcigart_init(struct drm_device *dev,
1116 struct drm_ati_pcigart_info * gart_info);
1117 extern int drm_ati_pcigart_cleanup(struct drm_device *dev,
1118 struct drm_ati_pcigart_info * gart_info);
1120 extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
1121 size_t align, dma_addr_t maxaddr);
1122 extern void __drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
1123 extern void drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
1125 /* sysfs support (drm_sysfs.c) */
1126 struct drm_sysfs_class;
1127 extern struct class *drm_sysfs_create(struct module *owner, char *name);
1128 extern void drm_sysfs_destroy(void);
1129 extern int drm_sysfs_device_add(struct drm_minor *minor);
1130 extern void drm_sysfs_device_remove(struct drm_minor *minor);
1133 * Basic memory manager support (drm_mm.c)
1135 extern struct drm_mm_node *drm_mm_get_block(struct drm_mm_node * parent,
1137 unsigned alignment);
1138 extern void drm_mm_put_block(struct drm_mm_node * cur);
1139 extern struct drm_mm_node *drm_mm_search_free(const struct drm_mm *mm, unsigned long size,
1140 unsigned alignment, int best_match);
1141 extern int drm_mm_init(struct drm_mm *mm, unsigned long start, unsigned long size);
1142 extern void drm_mm_takedown(struct drm_mm *mm);
1143 extern int drm_mm_clean(struct drm_mm *mm);
1144 extern unsigned long drm_mm_tail_space(struct drm_mm *mm);
1145 extern int drm_mm_remove_space_from_tail(struct drm_mm *mm, unsigned long size);
1146 extern int drm_mm_add_space_to_tail(struct drm_mm *mm, unsigned long size);
1148 extern void drm_core_ioremap(struct drm_map *map, struct drm_device *dev);
1149 extern void drm_core_ioremapfree(struct drm_map *map, struct drm_device *dev);
1151 static __inline__ struct drm_map *drm_core_findmap(struct drm_device *dev,
1154 struct drm_map_list *_entry;
1155 list_for_each_entry(_entry, &dev->maplist, head)
1156 if (_entry->user_token == token)
1161 static __inline__ int drm_device_is_agp(struct drm_device *dev)
1163 if (dev->driver->device_is_agp != NULL) {
1164 int err = (*dev->driver->device_is_agp) (dev);
1171 return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP);
1174 static __inline__ int drm_device_is_pcie(struct drm_device *dev)
1176 return pci_find_capability(dev->pdev, PCI_CAP_ID_EXP);
1179 static __inline__ void drm_core_dropmap(struct drm_map *map)
1183 #ifndef DEBUG_MEMORY
1184 /** Wrapper around kmalloc() */
1185 static __inline__ void *drm_alloc(size_t size, int area)
1187 return kmalloc(size, GFP_KERNEL);
1190 /** Wrapper around kfree() */
1191 static __inline__ void drm_free(void *pt, size_t size, int area)
1196 /** Wrapper around kcalloc() */
1197 static __inline__ void *drm_calloc(size_t nmemb, size_t size, int area)
1199 return kcalloc(nmemb, size, GFP_KERNEL);
1202 extern void *drm_alloc(size_t size, int area);
1203 extern void drm_free(void *pt, size_t size, int area);
1204 extern void *drm_calloc(size_t nmemb, size_t size, int area);
1209 #endif /* __KERNEL__ */