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"
91 #define DRM_UT_CORE 0x01
92 #define DRM_UT_DRIVER 0x02
93 #define DRM_UT_KMS 0x04
94 #define DRM_UT_MODE 0x08
96 extern void drm_ut_debug_printk(unsigned int request_level,
98 const char *function_name,
99 const char *format, ...);
100 /***********************************************************************/
101 /** \name DRM template customization defaults */
104 /* driver capabilities and requirements mask */
105 #define DRIVER_USE_AGP 0x1
106 #define DRIVER_REQUIRE_AGP 0x2
107 #define DRIVER_USE_MTRR 0x4
108 #define DRIVER_PCI_DMA 0x8
109 #define DRIVER_SG 0x10
110 #define DRIVER_HAVE_DMA 0x20
111 #define DRIVER_HAVE_IRQ 0x40
112 #define DRIVER_IRQ_SHARED 0x80
113 #define DRIVER_IRQ_VBL 0x100
114 #define DRIVER_DMA_QUEUE 0x200
115 #define DRIVER_FB_DMA 0x400
116 #define DRIVER_IRQ_VBL2 0x800
117 #define DRIVER_GEM 0x1000
118 #define DRIVER_MODESET 0x2000
120 /***********************************************************************/
121 /** \name Begin the DRM... */
124 #define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then
125 also include looping detection. */
127 #define DRM_MAGIC_HASH_ORDER 4 /**< Size of key hash table. Must be power of 2. */
128 #define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */
129 #define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */
130 #define DRM_LOOPING_LIMIT 5000000
131 #define DRM_TIME_SLICE (HZ/20) /**< Time slice for GLXContexts */
132 #define DRM_LOCK_SLICE 1 /**< Time slice for lock, in jiffies */
134 #define DRM_FLAG_DEBUG 0x01
136 #define DRM_MEM_DMA 0
137 #define DRM_MEM_SAREA 1
138 #define DRM_MEM_DRIVER 2
139 #define DRM_MEM_MAGIC 3
140 #define DRM_MEM_IOCTLS 4
141 #define DRM_MEM_MAPS 5
142 #define DRM_MEM_VMAS 6
143 #define DRM_MEM_BUFS 7
144 #define DRM_MEM_SEGS 8
145 #define DRM_MEM_PAGES 9
146 #define DRM_MEM_FILES 10
147 #define DRM_MEM_QUEUES 11
148 #define DRM_MEM_CMDS 12
149 #define DRM_MEM_MAPPINGS 13
150 #define DRM_MEM_BUFLISTS 14
151 #define DRM_MEM_AGPLISTS 15
152 #define DRM_MEM_TOTALAGP 16
153 #define DRM_MEM_BOUNDAGP 17
154 #define DRM_MEM_CTXBITMAP 18
155 #define DRM_MEM_STUB 19
156 #define DRM_MEM_SGLISTS 20
157 #define DRM_MEM_CTXLIST 21
158 #define DRM_MEM_MM 22
159 #define DRM_MEM_HASHTAB 23
161 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
162 #define DRM_MAP_HASH_OFFSET 0x10000000
166 /***********************************************************************/
167 /** \name Macros to make printk easier */
173 * \param fmt printf() like format string.
174 * \param arg arguments
176 #define DRM_ERROR(fmt, arg...) \
177 printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* " fmt , __func__ , ##arg)
180 * Memory error output.
182 * \param area memory area where the error occurred.
183 * \param fmt printf() like format string.
184 * \param arg arguments
186 #define DRM_MEM_ERROR(area, fmt, arg...) \
187 printk(KERN_ERR "[" DRM_NAME ":%s:%s] *ERROR* " fmt , __func__, \
188 drm_mem_stats[area].name , ##arg)
190 #define DRM_INFO(fmt, arg...) printk(KERN_INFO "[" DRM_NAME "] " fmt , ##arg)
195 * \param fmt printf() like format string.
196 * \param arg arguments
199 #define DRM_DEBUG(fmt, args...) \
201 drm_ut_debug_printk(DRM_UT_CORE, DRM_NAME, \
202 __func__, fmt, ##args); \
205 #define DRM_DEBUG_DRIVER(prefix, fmt, args...) \
207 drm_ut_debug_printk(DRM_UT_DRIVER, prefix, \
208 __func__, fmt, ##args); \
210 #define DRM_DEBUG_KMS(prefix, fmt, args...) \
212 drm_ut_debug_printk(DRM_UT_KMS, prefix, \
213 __func__, fmt, ##args); \
215 #define DRM_DEBUG_MODE(prefix, fmt, args...) \
217 drm_ut_debug_printk(DRM_UT_MODE, prefix, \
218 __func__, fmt, ##args); \
220 #define DRM_LOG(fmt, args...) \
222 drm_ut_debug_printk(DRM_UT_CORE, NULL, \
223 NULL, fmt, ##args); \
225 #define DRM_LOG_KMS(fmt, args...) \
227 drm_ut_debug_printk(DRM_UT_KMS, NULL, \
228 NULL, fmt, ##args); \
230 #define DRM_LOG_MODE(fmt, args...) \
232 drm_ut_debug_printk(DRM_UT_MODE, NULL, \
233 NULL, fmt, ##args); \
235 #define DRM_LOG_DRIVER(fmt, args...) \
237 drm_ut_debug_printk(DRM_UT_DRIVER, NULL, \
238 NULL, fmt, ##args); \
241 #define DRM_DEBUG_DRIVER(prefix, fmt, args...) do { } while (0)
242 #define DRM_DEBUG_KMS(prefix, fmt, args...) do { } while (0)
243 #define DRM_DEBUG_MODE(prefix, fmt, args...) do { } while (0)
244 #define DRM_DEBUG(fmt, arg...) do { } while (0)
245 #define DRM_LOG(fmt, arg...) do { } while (0)
246 #define DRM_LOG_KMS(fmt, args...) do { } while (0)
247 #define DRM_LOG_MODE(fmt, arg...) do { } while (0)
248 #define DRM_LOG_DRIVER(fmt, arg...) do { } while (0)
252 #define DRM_PROC_LIMIT (PAGE_SIZE-80)
254 #define DRM_PROC_PRINT(fmt, arg...) \
255 len += sprintf(&buf[len], fmt , ##arg); \
256 if (len > DRM_PROC_LIMIT) { *eof = 1; return len - offset; }
258 #define DRM_PROC_PRINT_RET(ret, fmt, arg...) \
259 len += sprintf(&buf[len], fmt , ##arg); \
260 if (len > DRM_PROC_LIMIT) { ret; *eof = 1; return len - offset; }
264 /***********************************************************************/
265 /** \name Internal types and structures */
268 #define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x)
270 #define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
271 #define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
272 #define DRM_WAITCOUNT(dev,idx) DRM_BUFCOUNT(&dev->queuelist[idx]->waitlist)
274 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
276 * Get the private SAREA mapping.
278 * \param _dev DRM device.
279 * \param _ctx context number.
280 * \param _map output mapping.
282 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
283 (_map) = (_dev)->context_sareas[_ctx]; \
287 * Test that the hardware lock is held by the caller, returning otherwise.
289 * \param dev DRM device.
290 * \param filp file pointer of the caller.
292 #define LOCK_TEST_WITH_RETURN( dev, _file_priv ) \
294 if (!_DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock) || \
295 _file_priv->master->lock.file_priv != _file_priv) { \
296 DRM_ERROR( "%s called without lock held, held %d owner %p %p\n",\
297 __func__, _DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock),\
298 _file_priv->master->lock.file_priv, _file_priv); \
304 * Copy and IOCTL return string to user space
306 #define DRM_COPY( name, value ) \
307 len = strlen( value ); \
308 if ( len > name##_len ) len = name##_len; \
309 name##_len = strlen( value ); \
310 if ( len && name ) { \
311 if ( copy_to_user( name, value, len ) ) \
316 * Ioctl function type.
318 * \param inode device inode.
319 * \param file_priv DRM file private pointer.
320 * \param cmd command.
321 * \param arg argument.
323 typedef int drm_ioctl_t(struct drm_device *dev, void *data,
324 struct drm_file *file_priv);
326 typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
330 #define DRM_MASTER 0x2
331 #define DRM_ROOT_ONLY 0x4
332 #define DRM_CONTROL_ALLOW 0x8
334 struct drm_ioctl_desc {
341 * Creates a driver or general drm_ioctl_desc array entry for the given
342 * ioctl, for use by drm_ioctl().
344 #define DRM_IOCTL_DEF(ioctl, _func, _flags) \
345 [DRM_IOCTL_NR(ioctl)] = {.cmd = ioctl, .func = _func, .flags = _flags}
347 struct drm_magic_entry {
348 struct list_head head;
349 struct drm_hash_item hash_item;
350 struct drm_file *priv;
353 struct drm_vma_entry {
354 struct list_head head;
355 struct vm_area_struct *vma;
363 int idx; /**< Index into master buflist */
364 int total; /**< Buffer size */
365 int order; /**< log-base-2(total) */
366 int used; /**< Amount of buffer in use (for DMA) */
367 unsigned long offset; /**< Byte offset (used internally) */
368 void *address; /**< Address of buffer */
369 unsigned long bus_address; /**< Bus address of buffer */
370 struct drm_buf *next; /**< Kernel-only: used for free list */
371 __volatile__ int waiting; /**< On kernel DMA queue */
372 __volatile__ int pending; /**< On hardware DMA queue */
373 wait_queue_head_t dma_wait; /**< Processes waiting */
374 struct drm_file *file_priv; /**< Private of holding file descr */
375 int context; /**< Kernel queue for this buffer */
376 int while_locked; /**< Dispatch this buffer while locked */
384 } list; /**< Which list we're on */
386 int dev_priv_size; /**< Size of buffer private storage */
387 void *dev_private; /**< Per-buffer private storage */
390 /** bufs is one longer than it has to be */
391 struct drm_waitlist {
392 int count; /**< Number of possible buffers */
393 struct drm_buf **bufs; /**< List of pointers to buffers */
394 struct drm_buf **rp; /**< Read pointer */
395 struct drm_buf **wp; /**< Write pointer */
396 struct drm_buf **end; /**< End pointer */
397 spinlock_t read_lock;
398 spinlock_t write_lock;
401 struct drm_freelist {
402 int initialized; /**< Freelist in use */
403 atomic_t count; /**< Number of free buffers */
404 struct drm_buf *next; /**< End pointer */
406 wait_queue_head_t waiting; /**< Processes waiting on free bufs */
407 int low_mark; /**< Low water mark */
408 int high_mark; /**< High water mark */
409 atomic_t wfh; /**< If waiting for high mark */
413 typedef struct drm_dma_handle {
420 * Buffer entry. There is one of this for each buffer size order.
422 struct drm_buf_entry {
423 int buf_size; /**< size */
424 int buf_count; /**< number of buffers */
425 struct drm_buf *buflist; /**< buffer list */
428 struct drm_dma_handle **seglist;
430 struct drm_freelist freelist;
433 /** File private data */
439 unsigned long ioctl_count;
440 struct list_head lhead;
441 struct drm_minor *minor;
442 unsigned long lock_count;
444 /** Mapping of mm object handles to object pointers. */
445 struct idr object_idr;
446 /** Lock for synchronization of access to object_idr. */
447 spinlock_t table_lock;
452 int is_master; /* this file private is a master for a minor */
453 struct drm_master *master; /* master this node is currently associated with
454 N.B. not always minor->master */
455 struct list_head fbs;
460 atomic_t use_count; /**< Outstanding uses (+1) */
461 atomic_t finalization; /**< Finalization in progress */
462 atomic_t block_count; /**< Count of processes waiting */
463 atomic_t block_read; /**< Queue blocked for reads */
464 wait_queue_head_t read_queue; /**< Processes waiting on block_read */
465 atomic_t block_write; /**< Queue blocked for writes */
466 wait_queue_head_t write_queue; /**< Processes waiting on block_write */
467 atomic_t total_queued; /**< Total queued statistic */
468 atomic_t total_flushed; /**< Total flushes statistic */
469 atomic_t total_locks; /**< Total locks statistics */
470 enum drm_ctx_flags flags; /**< Context preserving and 2D-only */
471 struct drm_waitlist waitlist; /**< Pending buffers */
472 wait_queue_head_t flush_queue; /**< Processes waiting until flush */
478 struct drm_lock_data {
479 struct drm_hw_lock *hw_lock; /**< Hardware lock */
480 /** Private of lock holder's file (NULL=kernel) */
481 struct drm_file *file_priv;
482 wait_queue_head_t lock_queue; /**< Queue of blocked processes */
483 unsigned long lock_time; /**< Time of last lock in jiffies */
485 uint32_t kernel_waiters;
486 uint32_t user_waiters;
493 struct drm_device_dma {
495 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */
496 int buf_count; /**< total number of buffers */
497 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */
499 int page_count; /**< number of pages */
500 unsigned long *pagelist; /**< page list */
501 unsigned long byte_count;
503 _DRM_DMA_USE_AGP = 0x01,
504 _DRM_DMA_USE_SG = 0x02,
505 _DRM_DMA_USE_FB = 0x04,
506 _DRM_DMA_USE_PCI_RO = 0x08
512 * AGP memory entry. Stored as a doubly linked list.
515 unsigned long handle; /**< handle */
517 unsigned long bound; /**< address */
519 struct list_head head;
525 * \sa drm_agp_init() and drm_device::agp.
527 struct drm_agp_head {
528 DRM_AGP_KERN agp_info; /**< AGP device information */
529 struct list_head memory;
530 unsigned long mode; /**< AGP mode */
531 struct agp_bridge_data *bridge;
532 int enabled; /**< whether the AGP bus as been enabled */
533 int acquired; /**< whether the AGP device has been acquired */
536 int cant_use_aperture;
537 unsigned long page_mask;
541 * Scatter-gather memory.
544 unsigned long handle;
547 struct page **pagelist;
553 struct drm_hw_lock *lock;
558 * Kernel side of a mapping
560 struct drm_local_map {
561 resource_size_t offset; /**< Requested physical address (0 for SAREA)*/
562 unsigned long size; /**< Requested physical size (bytes) */
563 enum drm_map_type type; /**< Type of memory to map */
564 enum drm_map_flags flags; /**< Flags */
565 void *handle; /**< User-space: "Handle" to pass to mmap() */
566 /**< Kernel-space: kernel-virtual address */
567 int mtrr; /**< MTRR slot used */
570 typedef struct drm_local_map drm_local_map_t;
575 struct drm_map_list {
576 struct list_head head; /**< list head */
577 struct drm_hash_item hash;
578 struct drm_local_map *map; /**< mapping */
580 struct drm_master *master;
581 struct drm_mm_node *file_offset_node; /**< fake offset */
585 * Context handle list
587 struct drm_ctx_list {
588 struct list_head head; /**< list head */
589 drm_context_t handle; /**< context handle */
590 struct drm_file *tag; /**< associated fd private data */
593 /* location of GART table */
594 #define DRM_ATI_GART_MAIN 1
595 #define DRM_ATI_GART_FB 2
597 #define DRM_ATI_GART_PCI 1
598 #define DRM_ATI_GART_PCIE 2
599 #define DRM_ATI_GART_IGP 3
601 struct drm_ati_pcigart_info {
602 int gart_table_location;
606 dma_addr_t table_mask;
607 struct drm_dma_handle *table_handle;
608 struct drm_local_map mapping;
613 * GEM specific mm private for tracking GEM objects
616 struct drm_mm offset_manager; /**< Offset mgmt for buffer objects */
617 struct drm_open_hash offset_hash; /**< User token hash table for maps */
621 * This structure defines the drm_mm memory object, which will be used by the
622 * DRM for its buffer objects.
624 struct drm_gem_object {
625 /** Reference count of this object */
626 struct kref refcount;
628 /** Handle count of this object. Each handle also holds a reference */
629 struct kref handlecount;
631 /** Related drm device */
632 struct drm_device *dev;
634 /** File representing the shmem storage */
637 /* Mapping info for this object */
638 struct drm_map_list map_list;
641 * Size of the object, in bytes. Immutable over the object's
647 * Global name for this object, starts at 1. 0 means unnamed.
648 * Access is covered by the object_name_lock in the related drm_device
653 * Memory domains. These monitor which caches contain read/write data
654 * related to the object. When transitioning from one set of domains
655 * to another, the driver is called to ensure that caches are suitably
656 * flushed and invalidated
658 uint32_t read_domains;
659 uint32_t write_domain;
662 * While validating an exec operation, the
663 * new read/write domain values are computed here.
664 * They will be transferred to the above values
665 * at the point that any cache flushing occurs
667 uint32_t pending_read_domains;
668 uint32_t pending_write_domain;
670 void *driver_private;
673 #include "drm_crtc.h"
675 /* per-master structure */
678 struct kref refcount; /* refcount for this master */
680 struct list_head head; /**< each minor contains a list of masters */
681 struct drm_minor *minor; /**< link back to minor we are a master for */
683 char *unique; /**< Unique identifier: e.g., busid */
684 int unique_len; /**< Length of unique field */
685 int unique_size; /**< amount allocated */
687 int blocked; /**< Blocked due to VC switch? */
689 /** \name Authentication */
691 struct drm_open_hash magiclist;
692 struct list_head magicfree;
695 struct drm_lock_data lock; /**< Information on hardware lock */
697 void *driver_priv; /**< Private structure for driver to use */
701 * DRM driver structure. This structure represent the common code for
702 * a family of cards. There will one drm_device for each card present
706 int (*load) (struct drm_device *, unsigned long flags);
707 int (*firstopen) (struct drm_device *);
708 int (*open) (struct drm_device *, struct drm_file *);
709 void (*preclose) (struct drm_device *, struct drm_file *file_priv);
710 void (*postclose) (struct drm_device *, struct drm_file *);
711 void (*lastclose) (struct drm_device *);
712 int (*unload) (struct drm_device *);
713 int (*suspend) (struct drm_device *, pm_message_t state);
714 int (*resume) (struct drm_device *);
715 int (*dma_ioctl) (struct drm_device *dev, void *data, struct drm_file *file_priv);
716 void (*dma_ready) (struct drm_device *);
717 int (*dma_quiescent) (struct drm_device *);
718 int (*context_ctor) (struct drm_device *dev, int context);
719 int (*context_dtor) (struct drm_device *dev, int context);
720 int (*kernel_context_switch) (struct drm_device *dev, int old,
722 void (*kernel_context_switch_unlock) (struct drm_device *dev);
725 * get_vblank_counter - get raw hardware vblank counter
727 * @crtc: counter to fetch
729 * Driver callback for fetching a raw hardware vblank counter
730 * for @crtc. If a device doesn't have a hardware counter, the
731 * driver can simply return the value of drm_vblank_count and
732 * make the enable_vblank() and disable_vblank() hooks into no-ops,
733 * leaving interrupts enabled at all times.
735 * Wraparound handling and loss of events due to modesetting is dealt
736 * with in the DRM core code.
739 * Raw vblank counter value.
741 u32 (*get_vblank_counter) (struct drm_device *dev, int crtc);
744 * enable_vblank - enable vblank interrupt events
746 * @crtc: which irq to enable
748 * Enable vblank interrupts for @crtc. If the device doesn't have
749 * a hardware vblank counter, this routine should be a no-op, since
750 * interrupts will have to stay on to keep the count accurate.
753 * Zero on success, appropriate errno if the given @crtc's vblank
754 * interrupt cannot be enabled.
756 int (*enable_vblank) (struct drm_device *dev, int crtc);
759 * disable_vblank - disable vblank interrupt events
761 * @crtc: which irq to enable
763 * Disable vblank interrupts for @crtc. If the device doesn't have
764 * a hardware vblank counter, this routine should be a no-op, since
765 * interrupts will have to stay on to keep the count accurate.
767 void (*disable_vblank) (struct drm_device *dev, int crtc);
770 * Called by \c drm_device_is_agp. Typically used to determine if a
771 * card is really attached to AGP or not.
773 * \param dev DRM device handle
776 * One of three values is returned depending on whether or not the
777 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
778 * (return of 1), or may or may not be AGP (return of 2).
780 int (*device_is_agp) (struct drm_device *dev);
782 /* these have to be filled in */
784 irqreturn_t(*irq_handler) (DRM_IRQ_ARGS);
785 void (*irq_preinstall) (struct drm_device *dev);
786 int (*irq_postinstall) (struct drm_device *dev);
787 void (*irq_uninstall) (struct drm_device *dev);
788 void (*reclaim_buffers) (struct drm_device *dev,
789 struct drm_file * file_priv);
790 void (*reclaim_buffers_locked) (struct drm_device *dev,
791 struct drm_file *file_priv);
792 void (*reclaim_buffers_idlelocked) (struct drm_device *dev,
793 struct drm_file *file_priv);
794 resource_size_t (*get_map_ofs) (struct drm_local_map * map);
795 resource_size_t (*get_reg_ofs) (struct drm_device *dev);
796 void (*set_version) (struct drm_device *dev,
797 struct drm_set_version *sv);
799 /* Master routines */
800 int (*master_create)(struct drm_device *dev, struct drm_master *master);
801 void (*master_destroy)(struct drm_device *dev, struct drm_master *master);
803 int (*proc_init)(struct drm_minor *minor);
804 void (*proc_cleanup)(struct drm_minor *minor);
805 int (*debugfs_init)(struct drm_minor *minor);
806 void (*debugfs_cleanup)(struct drm_minor *minor);
809 * Driver-specific constructor for drm_gem_objects, to set up
810 * obj->driver_private.
812 * Returns 0 on success.
814 int (*gem_init_object) (struct drm_gem_object *obj);
815 void (*gem_free_object) (struct drm_gem_object *obj);
817 /* Driver private ops for this object */
818 struct vm_operations_struct *gem_vm_ops;
829 struct drm_ioctl_desc *ioctls;
831 struct file_operations fops;
832 struct pci_driver pci_driver;
833 /* List of devices hanging off this driver */
834 struct list_head device_list;
837 #define DRM_MINOR_UNASSIGNED 0
838 #define DRM_MINOR_LEGACY 1
839 #define DRM_MINOR_CONTROL 2
840 #define DRM_MINOR_RENDER 3
844 * debugfs node list. This structure represents a debugfs file to
845 * be created by the drm core
847 struct drm_debugfs_list {
848 const char *name; /** file name */
849 int (*show)(struct seq_file*, void*); /** show callback */
850 u32 driver_features; /**< Required driver features for this entry */
854 * debugfs node structure. This structure represents a debugfs file.
856 struct drm_debugfs_node {
857 struct list_head list;
858 struct drm_minor *minor;
859 struct drm_debugfs_list *debugfs_ent;
864 * Info file list entry. This structure represents a debugfs or proc file to
865 * be created by the drm core
867 struct drm_info_list {
868 const char *name; /** file name */
869 int (*show)(struct seq_file*, void*); /** show callback */
870 u32 driver_features; /**< Required driver features for this entry */
875 * debugfs node structure. This structure represents a debugfs file.
877 struct drm_info_node {
878 struct list_head list;
879 struct drm_minor *minor;
880 struct drm_info_list *info_ent;
885 * DRM minor structure. This structure represents a drm minor number.
888 int index; /**< Minor device number */
889 int type; /**< Control or render */
890 dev_t device; /**< Device number for mknod */
891 struct device kdev; /**< Linux device */
892 struct drm_device *dev;
894 struct proc_dir_entry *proc_root; /**< proc directory entry */
895 struct drm_info_node proc_nodes;
896 struct dentry *debugfs_root;
897 struct drm_info_node debugfs_nodes;
899 struct drm_master *master; /* currently active master for this node */
900 struct list_head master_list;
901 struct drm_mode_group mode_group;
905 * DRM device structure. This structure represent a complete card that
906 * may contain multiple heads.
909 struct list_head driver_item; /**< list of devices per driver */
910 char *devname; /**< For /proc/interrupts */
911 int if_version; /**< Highest interface version set */
915 spinlock_t count_lock; /**< For inuse, drm_device::open_count, drm_device::buf_use */
916 struct mutex struct_mutex; /**< For others */
919 /** \name Usage Counters */
921 int open_count; /**< Outstanding files open */
922 atomic_t ioctl_count; /**< Outstanding IOCTLs pending */
923 atomic_t vma_count; /**< Outstanding vma areas open */
924 int buf_use; /**< Buffers in use -- cannot alloc */
925 atomic_t buf_alloc; /**< Buffer allocation in progress */
928 /** \name Performance counters */
930 unsigned long counters;
931 enum drm_stat_type types[15];
935 struct list_head filelist;
937 /** \name Memory management */
939 struct list_head maplist; /**< Linked list of regions */
940 int map_count; /**< Number of mappable regions */
941 struct drm_open_hash map_hash; /**< User token hash table for maps */
943 /** \name Context handle management */
945 struct list_head ctxlist; /**< Linked list of context handles */
946 int ctx_count; /**< Number of context handles */
947 struct mutex ctxlist_mutex; /**< For ctxlist */
951 struct list_head vmalist; /**< List of vmas (for debugging) */
955 /** \name DMA queues (contexts) */
957 int queue_count; /**< Number of active DMA queues */
958 int queue_reserved; /**< Number of reserved DMA queues */
959 int queue_slots; /**< Actual length of queuelist */
960 struct drm_queue **queuelist; /**< Vector of pointers to DMA queues */
961 struct drm_device_dma *dma; /**< Optional pointer for DMA support */
964 /** \name Context support */
966 int irq_enabled; /**< True if irq handler is enabled */
967 __volatile__ long context_flag; /**< Context swapping flag */
968 __volatile__ long interrupt_flag; /**< Interruption handler flag */
969 __volatile__ long dma_flag; /**< DMA dispatch flag */
970 struct timer_list timer; /**< Timer for delaying ctx switch */
971 wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */
972 int last_checked; /**< Last context checked for DMA */
973 int last_context; /**< Last current context */
974 unsigned long last_switch; /**< jiffies at last context switch */
977 struct work_struct work;
978 /** \name VBLANK IRQ support */
982 * At load time, disabling the vblank interrupt won't be allowed since
983 * old clients may not call the modeset ioctl and therefore misbehave.
984 * Once the modeset ioctl *has* been called though, we can safely
985 * disable them when unused.
987 int vblank_disable_allowed;
989 wait_queue_head_t *vbl_queue; /**< VBLANK wait queue */
990 atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */
992 atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */
993 u32 *last_vblank; /* protected by dev->vbl_lock, used */
994 /* for wraparound handling */
995 int *vblank_enabled; /* so we don't call enable more than
997 int *vblank_inmodeset; /* Display driver is setting mode */
998 u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */
999 struct timer_list vblank_disable_timer;
1001 u32 max_vblank_count; /**< size of vblank counter register */
1007 struct fasync_struct *buf_async;/**< Processes waiting for SIGIO */
1008 wait_queue_head_t buf_readers; /**< Processes waiting to read */
1009 wait_queue_head_t buf_writers; /**< Processes waiting to ctx switch */
1011 struct drm_agp_head *agp; /**< AGP data */
1013 struct pci_dev *pdev; /**< PCI device structure */
1014 int pci_vendor; /**< PCI vendor id */
1015 int pci_device; /**< PCI device id */
1017 struct pci_controller *hose;
1019 struct drm_sg_mem *sg; /**< Scatter gather memory */
1020 int num_crtcs; /**< Number of CRTCs on this device */
1021 void *dev_private; /**< device private data */
1023 struct address_space *dev_mapping;
1024 struct drm_sigdata sigdata; /**< For block_all_signals */
1027 struct drm_driver *driver;
1028 struct drm_local_map *agp_buffer_map;
1029 unsigned int agp_buffer_token;
1030 struct drm_minor *control; /**< Control node for card */
1031 struct drm_minor *primary; /**< render type primary screen head */
1033 /** \name Drawable information */
1035 spinlock_t drw_lock;
1039 struct drm_mode_config mode_config; /**< Current mode config */
1041 /** \name GEM information */
1043 spinlock_t object_name_lock;
1044 struct idr object_name_idr;
1045 atomic_t object_count;
1046 atomic_t object_memory;
1048 atomic_t pin_memory;
1050 atomic_t gtt_memory;
1052 uint32_t invalidate_domains; /* domains pending invalidation */
1053 uint32_t flush_domains; /* domains pending flush */
1058 static inline int drm_dev_to_irq(struct drm_device *dev)
1060 return dev->pdev->irq;
1063 static __inline__ int drm_core_check_feature(struct drm_device *dev,
1066 return ((dev->driver->driver_features & feature) ? 1 : 0);
1070 #define drm_get_pci_domain(dev) dev->hose->index
1072 #define drm_get_pci_domain(dev) 0
1076 static inline int drm_core_has_AGP(struct drm_device *dev)
1078 return drm_core_check_feature(dev, DRIVER_USE_AGP);
1081 #define drm_core_has_AGP(dev) (0)
1085 static inline int drm_core_has_MTRR(struct drm_device *dev)
1087 return drm_core_check_feature(dev, DRIVER_USE_MTRR);
1090 #define DRM_MTRR_WC MTRR_TYPE_WRCOMB
1092 static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
1095 return mtrr_add(offset, size, flags, 1);
1098 static inline int drm_mtrr_del(int handle, unsigned long offset,
1099 unsigned long size, unsigned int flags)
1101 return mtrr_del(handle, offset, size);
1105 #define drm_core_has_MTRR(dev) (0)
1107 #define DRM_MTRR_WC 0
1109 static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
1115 static inline int drm_mtrr_del(int handle, unsigned long offset,
1116 unsigned long size, unsigned int flags)
1122 /******************************************************************/
1123 /** \name Internal function definitions */
1126 /* Driver support (drm_drv.h) */
1127 extern int drm_init(struct drm_driver *driver);
1128 extern void drm_exit(struct drm_driver *driver);
1129 extern int drm_ioctl(struct inode *inode, struct file *filp,
1130 unsigned int cmd, unsigned long arg);
1131 extern long drm_compat_ioctl(struct file *filp,
1132 unsigned int cmd, unsigned long arg);
1133 extern int drm_lastclose(struct drm_device *dev);
1135 /* Device support (drm_fops.h) */
1136 extern int drm_open(struct inode *inode, struct file *filp);
1137 extern int drm_stub_open(struct inode *inode, struct file *filp);
1138 extern int drm_fasync(int fd, struct file *filp, int on);
1139 extern int drm_release(struct inode *inode, struct file *filp);
1141 /* Mapping support (drm_vm.h) */
1142 extern int drm_mmap(struct file *filp, struct vm_area_struct *vma);
1143 extern int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma);
1144 extern void drm_vm_open_locked(struct vm_area_struct *vma);
1145 extern resource_size_t drm_core_get_map_ofs(struct drm_local_map * map);
1146 extern resource_size_t drm_core_get_reg_ofs(struct drm_device *dev);
1147 extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait);
1149 /* Memory management support (drm_memory.h) */
1150 #include "drm_memory.h"
1151 extern void drm_mem_init(void);
1152 extern int drm_mem_info(char *buf, char **start, off_t offset,
1153 int request, int *eof, void *data);
1154 extern void *drm_realloc(void *oldpt, size_t oldsize, size_t size, int area);
1156 extern DRM_AGP_MEM *drm_alloc_agp(struct drm_device *dev, int pages, u32 type);
1157 extern int drm_free_agp(DRM_AGP_MEM * handle, int pages);
1158 extern int drm_bind_agp(DRM_AGP_MEM * handle, unsigned int start);
1159 extern DRM_AGP_MEM *drm_agp_bind_pages(struct drm_device *dev,
1160 struct page **pages,
1161 unsigned long num_pages,
1162 uint32_t gtt_offset,
1164 extern int drm_unbind_agp(DRM_AGP_MEM * handle);
1166 /* Misc. IOCTL support (drm_ioctl.h) */
1167 extern int drm_irq_by_busid(struct drm_device *dev, void *data,
1168 struct drm_file *file_priv);
1169 extern int drm_getunique(struct drm_device *dev, void *data,
1170 struct drm_file *file_priv);
1171 extern int drm_setunique(struct drm_device *dev, void *data,
1172 struct drm_file *file_priv);
1173 extern int drm_getmap(struct drm_device *dev, void *data,
1174 struct drm_file *file_priv);
1175 extern int drm_getclient(struct drm_device *dev, void *data,
1176 struct drm_file *file_priv);
1177 extern int drm_getstats(struct drm_device *dev, void *data,
1178 struct drm_file *file_priv);
1179 extern int drm_setversion(struct drm_device *dev, void *data,
1180 struct drm_file *file_priv);
1181 extern int drm_noop(struct drm_device *dev, void *data,
1182 struct drm_file *file_priv);
1184 /* Context IOCTL support (drm_context.h) */
1185 extern int drm_resctx(struct drm_device *dev, void *data,
1186 struct drm_file *file_priv);
1187 extern int drm_addctx(struct drm_device *dev, void *data,
1188 struct drm_file *file_priv);
1189 extern int drm_modctx(struct drm_device *dev, void *data,
1190 struct drm_file *file_priv);
1191 extern int drm_getctx(struct drm_device *dev, void *data,
1192 struct drm_file *file_priv);
1193 extern int drm_switchctx(struct drm_device *dev, void *data,
1194 struct drm_file *file_priv);
1195 extern int drm_newctx(struct drm_device *dev, void *data,
1196 struct drm_file *file_priv);
1197 extern int drm_rmctx(struct drm_device *dev, void *data,
1198 struct drm_file *file_priv);
1200 extern int drm_ctxbitmap_init(struct drm_device *dev);
1201 extern void drm_ctxbitmap_cleanup(struct drm_device *dev);
1202 extern void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
1204 extern int drm_setsareactx(struct drm_device *dev, void *data,
1205 struct drm_file *file_priv);
1206 extern int drm_getsareactx(struct drm_device *dev, void *data,
1207 struct drm_file *file_priv);
1209 /* Drawable IOCTL support (drm_drawable.h) */
1210 extern int drm_adddraw(struct drm_device *dev, void *data,
1211 struct drm_file *file_priv);
1212 extern int drm_rmdraw(struct drm_device *dev, void *data,
1213 struct drm_file *file_priv);
1214 extern int drm_update_drawable_info(struct drm_device *dev, void *data,
1215 struct drm_file *file_priv);
1216 extern struct drm_drawable_info *drm_get_drawable_info(struct drm_device *dev,
1218 extern void drm_drawable_free_all(struct drm_device *dev);
1220 /* Authentication IOCTL support (drm_auth.h) */
1221 extern int drm_getmagic(struct drm_device *dev, void *data,
1222 struct drm_file *file_priv);
1223 extern int drm_authmagic(struct drm_device *dev, void *data,
1224 struct drm_file *file_priv);
1226 /* Cache management (drm_cache.c) */
1227 void drm_clflush_pages(struct page *pages[], unsigned long num_pages);
1229 /* Locking IOCTL support (drm_lock.h) */
1230 extern int drm_lock(struct drm_device *dev, void *data,
1231 struct drm_file *file_priv);
1232 extern int drm_unlock(struct drm_device *dev, void *data,
1233 struct drm_file *file_priv);
1234 extern int drm_lock_take(struct drm_lock_data *lock_data, unsigned int context);
1235 extern int drm_lock_free(struct drm_lock_data *lock_data, unsigned int context);
1236 extern void drm_idlelock_take(struct drm_lock_data *lock_data);
1237 extern void drm_idlelock_release(struct drm_lock_data *lock_data);
1240 * These are exported to drivers so that they can implement fencing using
1241 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
1244 extern int drm_i_have_hw_lock(struct drm_device *dev, struct drm_file *file_priv);
1246 /* Buffer management support (drm_bufs.h) */
1247 extern int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc * request);
1248 extern int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc * request);
1249 extern int drm_addmap(struct drm_device *dev, resource_size_t offset,
1250 unsigned int size, enum drm_map_type type,
1251 enum drm_map_flags flags, struct drm_local_map **map_ptr);
1252 extern int drm_addmap_ioctl(struct drm_device *dev, void *data,
1253 struct drm_file *file_priv);
1254 extern int drm_rmmap(struct drm_device *dev, struct drm_local_map *map);
1255 extern int drm_rmmap_locked(struct drm_device *dev, struct drm_local_map *map);
1256 extern int drm_rmmap_ioctl(struct drm_device *dev, void *data,
1257 struct drm_file *file_priv);
1258 extern int drm_addbufs(struct drm_device *dev, void *data,
1259 struct drm_file *file_priv);
1260 extern int drm_infobufs(struct drm_device *dev, void *data,
1261 struct drm_file *file_priv);
1262 extern int drm_markbufs(struct drm_device *dev, void *data,
1263 struct drm_file *file_priv);
1264 extern int drm_freebufs(struct drm_device *dev, void *data,
1265 struct drm_file *file_priv);
1266 extern int drm_mapbufs(struct drm_device *dev, void *data,
1267 struct drm_file *file_priv);
1268 extern int drm_order(unsigned long size);
1269 extern resource_size_t drm_get_resource_start(struct drm_device *dev,
1270 unsigned int resource);
1271 extern resource_size_t drm_get_resource_len(struct drm_device *dev,
1272 unsigned int resource);
1274 /* DMA support (drm_dma.h) */
1275 extern int drm_dma_setup(struct drm_device *dev);
1276 extern void drm_dma_takedown(struct drm_device *dev);
1277 extern void drm_free_buffer(struct drm_device *dev, struct drm_buf * buf);
1278 extern void drm_core_reclaim_buffers(struct drm_device *dev,
1279 struct drm_file *filp);
1281 /* IRQ support (drm_irq.h) */
1282 extern int drm_control(struct drm_device *dev, void *data,
1283 struct drm_file *file_priv);
1284 extern irqreturn_t drm_irq_handler(DRM_IRQ_ARGS);
1285 extern int drm_irq_install(struct drm_device *dev);
1286 extern int drm_irq_uninstall(struct drm_device *dev);
1287 extern void drm_driver_irq_preinstall(struct drm_device *dev);
1288 extern void drm_driver_irq_postinstall(struct drm_device *dev);
1289 extern void drm_driver_irq_uninstall(struct drm_device *dev);
1291 extern int drm_vblank_init(struct drm_device *dev, int num_crtcs);
1292 extern int drm_wait_vblank(struct drm_device *dev, void *data,
1293 struct drm_file *filp);
1294 extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq);
1295 extern u32 drm_vblank_count(struct drm_device *dev, int crtc);
1296 extern void drm_handle_vblank(struct drm_device *dev, int crtc);
1297 extern int drm_vblank_get(struct drm_device *dev, int crtc);
1298 extern void drm_vblank_put(struct drm_device *dev, int crtc);
1299 extern void drm_vblank_cleanup(struct drm_device *dev);
1300 /* Modesetting support */
1301 extern void drm_vblank_pre_modeset(struct drm_device *dev, int crtc);
1302 extern void drm_vblank_post_modeset(struct drm_device *dev, int crtc);
1303 extern int drm_modeset_ctl(struct drm_device *dev, void *data,
1304 struct drm_file *file_priv);
1306 /* AGP/GART support (drm_agpsupport.h) */
1307 extern struct drm_agp_head *drm_agp_init(struct drm_device *dev);
1308 extern int drm_agp_acquire(struct drm_device *dev);
1309 extern int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
1310 struct drm_file *file_priv);
1311 extern int drm_agp_release(struct drm_device *dev);
1312 extern int drm_agp_release_ioctl(struct drm_device *dev, void *data,
1313 struct drm_file *file_priv);
1314 extern int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode);
1315 extern int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
1316 struct drm_file *file_priv);
1317 extern int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info);
1318 extern int drm_agp_info_ioctl(struct drm_device *dev, void *data,
1319 struct drm_file *file_priv);
1320 extern int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request);
1321 extern int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
1322 struct drm_file *file_priv);
1323 extern int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request);
1324 extern int drm_agp_free_ioctl(struct drm_device *dev, void *data,
1325 struct drm_file *file_priv);
1326 extern int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request);
1327 extern int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
1328 struct drm_file *file_priv);
1329 extern int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
1330 extern int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
1331 struct drm_file *file_priv);
1332 extern DRM_AGP_MEM *drm_agp_allocate_memory(struct agp_bridge_data *bridge, size_t pages, u32 type);
1333 extern int drm_agp_free_memory(DRM_AGP_MEM * handle);
1334 extern int drm_agp_bind_memory(DRM_AGP_MEM * handle, off_t start);
1335 extern int drm_agp_unbind_memory(DRM_AGP_MEM * handle);
1336 extern void drm_agp_chipset_flush(struct drm_device *dev);
1338 /* Stub support (drm_stub.h) */
1339 extern int drm_setmaster_ioctl(struct drm_device *dev, void *data,
1340 struct drm_file *file_priv);
1341 extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
1342 struct drm_file *file_priv);
1343 struct drm_master *drm_master_create(struct drm_minor *minor);
1344 extern struct drm_master *drm_master_get(struct drm_master *master);
1345 extern void drm_master_put(struct drm_master **master);
1346 extern int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
1347 struct drm_driver *driver);
1348 extern void drm_put_dev(struct drm_device *dev);
1349 extern int drm_put_minor(struct drm_minor **minor);
1350 extern unsigned int drm_debug;
1352 extern struct class *drm_class;
1353 extern struct proc_dir_entry *drm_proc_root;
1354 extern struct dentry *drm_debugfs_root;
1356 extern struct idr drm_minors_idr;
1358 extern struct drm_local_map *drm_getsarea(struct drm_device *dev);
1360 /* Proc support (drm_proc.h) */
1361 extern int drm_proc_init(struct drm_minor *minor, int minor_id,
1362 struct proc_dir_entry *root);
1363 extern int drm_proc_cleanup(struct drm_minor *minor, struct proc_dir_entry *root);
1365 /* Debugfs support */
1366 #if defined(CONFIG_DEBUG_FS)
1367 extern int drm_debugfs_init(struct drm_minor *minor, int minor_id,
1368 struct dentry *root);
1369 extern int drm_debugfs_create_files(struct drm_info_list *files, int count,
1370 struct dentry *root, struct drm_minor *minor);
1371 extern int drm_debugfs_remove_files(struct drm_info_list *files, int count,
1372 struct drm_minor *minor);
1373 extern int drm_debugfs_cleanup(struct drm_minor *minor);
1376 /* Info file support */
1377 extern int drm_name_info(struct seq_file *m, void *data);
1378 extern int drm_vm_info(struct seq_file *m, void *data);
1379 extern int drm_queues_info(struct seq_file *m, void *data);
1380 extern int drm_bufs_info(struct seq_file *m, void *data);
1381 extern int drm_vblank_info(struct seq_file *m, void *data);
1382 extern int drm_clients_info(struct seq_file *m, void* data);
1383 extern int drm_gem_name_info(struct seq_file *m, void *data);
1384 extern int drm_gem_object_info(struct seq_file *m, void* data);
1387 extern int drm_vma_info(struct seq_file *m, void *data);
1390 /* Scatter Gather Support (drm_scatter.h) */
1391 extern void drm_sg_cleanup(struct drm_sg_mem * entry);
1392 extern int drm_sg_alloc_ioctl(struct drm_device *dev, void *data,
1393 struct drm_file *file_priv);
1394 extern int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request);
1395 extern int drm_sg_free(struct drm_device *dev, void *data,
1396 struct drm_file *file_priv);
1398 /* ATI PCIGART support (ati_pcigart.h) */
1399 extern int drm_ati_pcigart_init(struct drm_device *dev,
1400 struct drm_ati_pcigart_info * gart_info);
1401 extern int drm_ati_pcigart_cleanup(struct drm_device *dev,
1402 struct drm_ati_pcigart_info * gart_info);
1404 extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
1405 size_t align, dma_addr_t maxaddr);
1406 extern void __drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
1407 extern void drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
1409 /* sysfs support (drm_sysfs.c) */
1410 struct drm_sysfs_class;
1411 extern struct class *drm_sysfs_create(struct module *owner, char *name);
1412 extern void drm_sysfs_destroy(void);
1413 extern int drm_sysfs_device_add(struct drm_minor *minor);
1414 extern void drm_sysfs_hotplug_event(struct drm_device *dev);
1415 extern void drm_sysfs_device_remove(struct drm_minor *minor);
1416 extern char *drm_get_connector_status_name(enum drm_connector_status status);
1417 extern int drm_sysfs_connector_add(struct drm_connector *connector);
1418 extern void drm_sysfs_connector_remove(struct drm_connector *connector);
1420 /* Graphics Execution Manager library functions (drm_gem.c) */
1421 int drm_gem_init(struct drm_device *dev);
1422 void drm_gem_destroy(struct drm_device *dev);
1423 void drm_gem_object_free(struct kref *kref);
1424 struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev,
1426 void drm_gem_object_handle_free(struct kref *kref);
1427 void drm_gem_vm_open(struct vm_area_struct *vma);
1428 void drm_gem_vm_close(struct vm_area_struct *vma);
1429 int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
1432 drm_gem_object_reference(struct drm_gem_object *obj)
1434 kref_get(&obj->refcount);
1438 drm_gem_object_unreference(struct drm_gem_object *obj)
1443 kref_put(&obj->refcount, drm_gem_object_free);
1446 int drm_gem_handle_create(struct drm_file *file_priv,
1447 struct drm_gem_object *obj,
1451 drm_gem_object_handle_reference(struct drm_gem_object *obj)
1453 drm_gem_object_reference(obj);
1454 kref_get(&obj->handlecount);
1458 drm_gem_object_handle_unreference(struct drm_gem_object *obj)
1464 * Must bump handle count first as this may be the last
1465 * ref, in which case the object would disappear before we
1466 * checked for a name
1468 kref_put(&obj->handlecount, drm_gem_object_handle_free);
1469 drm_gem_object_unreference(obj);
1472 struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev,
1473 struct drm_file *filp,
1475 int drm_gem_close_ioctl(struct drm_device *dev, void *data,
1476 struct drm_file *file_priv);
1477 int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
1478 struct drm_file *file_priv);
1479 int drm_gem_open_ioctl(struct drm_device *dev, void *data,
1480 struct drm_file *file_priv);
1481 void drm_gem_open(struct drm_device *dev, struct drm_file *file_private);
1482 void drm_gem_release(struct drm_device *dev, struct drm_file *file_private);
1484 extern void drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev);
1485 extern void drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev);
1486 extern void drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev);
1488 static __inline__ struct drm_local_map *drm_core_findmap(struct drm_device *dev,
1491 struct drm_map_list *_entry;
1492 list_for_each_entry(_entry, &dev->maplist, head)
1493 if (_entry->user_token == token)
1498 static __inline__ int drm_device_is_agp(struct drm_device *dev)
1500 if (dev->driver->device_is_agp != NULL) {
1501 int err = (*dev->driver->device_is_agp) (dev);
1508 return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP);
1511 static __inline__ int drm_device_is_pcie(struct drm_device *dev)
1513 return pci_find_capability(dev->pdev, PCI_CAP_ID_EXP);
1516 static __inline__ void drm_core_dropmap(struct drm_local_map *map)
1520 #ifndef DEBUG_MEMORY
1521 /** Wrapper around kmalloc() */
1522 static __inline__ void *drm_alloc(size_t size, int area)
1524 return kmalloc(size, GFP_KERNEL);
1527 /** Wrapper around kfree() */
1528 static __inline__ void drm_free(void *pt, size_t size, int area)
1533 /** Wrapper around kcalloc() */
1534 static __inline__ void *drm_calloc(size_t nmemb, size_t size, int area)
1536 return kcalloc(nmemb, size, GFP_KERNEL);
1539 static __inline__ void *drm_calloc_large(size_t nmemb, size_t size)
1541 if (size * nmemb <= PAGE_SIZE)
1542 return kcalloc(nmemb, size, GFP_KERNEL);
1544 if (size != 0 && nmemb > ULONG_MAX / size)
1547 return __vmalloc(size * nmemb,
1548 GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO, PAGE_KERNEL);
1551 static __inline void drm_free_large(void *ptr)
1553 if (!is_vmalloc_addr(ptr))
1559 extern void *drm_alloc(size_t size, int area);
1560 extern void drm_free(void *pt, size_t size, int area);
1561 extern void *drm_calloc(size_t nmemb, size_t size, int area);
1566 #endif /* __KERNEL__ */