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.
39 /* add include of current.h so that "current" is defined
40 * before static inline funcs in wait.h. Doing this so we
41 * can build the DRM (part of PI DRI). 4/21/2000 S + B */
42 #include <asm/current.h>
43 #endif /* __alpha__ */
44 #include <linux/module.h>
45 #include <linux/kernel.h>
46 #include <linux/miscdevice.h>
48 #include <linux/proc_fs.h>
49 #include <linux/init.h>
50 #include <linux/file.h>
51 #include <linux/pci.h>
52 #include <linux/jiffies.h>
53 #include <linux/smp_lock.h> /* For (un)lock_kernel */
54 #include <linux/dma-mapping.h>
56 #include <linux/cdev.h>
57 #include <linux/mutex.h>
58 #if defined(__alpha__) || defined(__powerpc__)
59 #include <asm/pgtable.h> /* For pte_wrprotect */
63 #include <asm/uaccess.h>
67 #if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
68 #include <linux/types.h>
69 #include <linux/agp_backend.h>
71 #include <linux/workqueue.h>
72 #include <linux/poll.h>
73 #include <asm/pgalloc.h>
76 #include <linux/idr.h>
78 #define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE)))
79 #define __OS_HAS_MTRR (defined(CONFIG_MTRR))
84 #include "drm_os_linux.h"
85 #include "drm_hashtab.h"
88 #define DRM_UT_CORE 0x01
89 #define DRM_UT_DRIVER 0x02
90 #define DRM_UT_KMS 0x04
92 * Three debug levels are defined.
93 * drm_core, drm_driver, drm_kms
94 * drm_core level can be used in the generic drm code. For example:
95 * drm_ioctl, drm_mm, drm_memory
96 * The macro definiton of DRM_DEBUG is used.
97 * DRM_DEBUG(fmt, args...)
98 * The debug info by using the DRM_DEBUG can be obtained by adding
99 * the boot option of "drm.debug=1".
101 * drm_driver level can be used in the specific drm driver. It is used
102 * to add the debug info related with the drm driver. For example:
103 * i915_drv, i915_dma, i915_gem, radeon_drv,
104 * The macro definition of DRM_DEBUG_DRIVER can be used.
105 * DRM_DEBUG_DRIVER(fmt, args...)
106 * The debug info by using the DRM_DEBUG_DRIVER can be obtained by
107 * adding the boot option of "drm.debug=0x02"
109 * drm_kms level can be used in the KMS code related with specific drm driver.
110 * It is used to add the debug info related with KMS mode. For example:
111 * the connector/crtc ,
112 * The macro definition of DRM_DEBUG_KMS can be used.
113 * DRM_DEBUG_KMS(fmt, args...)
114 * The debug info by using the DRM_DEBUG_KMS can be obtained by
115 * adding the boot option of "drm.debug=0x04"
117 * If we add the boot option of "drm.debug=0x06", we can get the debug info by
118 * using the DRM_DEBUG_KMS and DRM_DEBUG_DRIVER.
119 * If we add the boot option of "drm.debug=0x05", we can get the debug info by
120 * using the DRM_DEBUG_KMS and DRM_DEBUG.
123 extern void drm_ut_debug_printk(unsigned int request_level,
125 const char *function_name,
126 const char *format, ...);
127 /***********************************************************************/
128 /** \name DRM template customization defaults */
131 /* driver capabilities and requirements mask */
132 #define DRIVER_USE_AGP 0x1
133 #define DRIVER_REQUIRE_AGP 0x2
134 #define DRIVER_USE_MTRR 0x4
135 #define DRIVER_PCI_DMA 0x8
136 #define DRIVER_SG 0x10
137 #define DRIVER_HAVE_DMA 0x20
138 #define DRIVER_HAVE_IRQ 0x40
139 #define DRIVER_IRQ_SHARED 0x80
140 #define DRIVER_IRQ_VBL 0x100
141 #define DRIVER_DMA_QUEUE 0x200
142 #define DRIVER_FB_DMA 0x400
143 #define DRIVER_IRQ_VBL2 0x800
144 #define DRIVER_GEM 0x1000
145 #define DRIVER_MODESET 0x2000
147 /***********************************************************************/
148 /** \name Begin the DRM... */
151 #define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then
152 also include looping detection. */
154 #define DRM_MAGIC_HASH_ORDER 4 /**< Size of key hash table. Must be power of 2. */
155 #define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */
156 #define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */
157 #define DRM_LOOPING_LIMIT 5000000
158 #define DRM_TIME_SLICE (HZ/20) /**< Time slice for GLXContexts */
159 #define DRM_LOCK_SLICE 1 /**< Time slice for lock, in jiffies */
161 #define DRM_FLAG_DEBUG 0x01
163 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
164 #define DRM_MAP_HASH_OFFSET 0x10000000
168 /***********************************************************************/
169 /** \name Macros to make printk easier */
175 * \param fmt printf() like format string.
176 * \param arg arguments
178 #define DRM_ERROR(fmt, arg...) \
179 printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* " fmt , __func__ , ##arg)
182 * Memory error output.
184 * \param area memory area where the error occurred.
185 * \param fmt printf() like format string.
186 * \param arg arguments
188 #define DRM_MEM_ERROR(area, fmt, arg...) \
189 printk(KERN_ERR "[" DRM_NAME ":%s:%s] *ERROR* " fmt , __func__, \
190 drm_mem_stats[area].name , ##arg)
192 #define DRM_INFO(fmt, arg...) printk(KERN_INFO "[" DRM_NAME "] " fmt , ##arg)
197 * \param fmt printf() like format string.
198 * \param arg arguments
201 #define DRM_DEBUG(fmt, args...) \
203 drm_ut_debug_printk(DRM_UT_CORE, DRM_NAME, \
204 __func__, fmt, ##args); \
207 #define DRM_DEBUG_DRIVER(fmt, args...) \
209 drm_ut_debug_printk(DRM_UT_DRIVER, DRM_NAME, \
210 __func__, fmt, ##args); \
212 #define DRM_DEBUG_KMS(fmt, args...) \
214 drm_ut_debug_printk(DRM_UT_KMS, DRM_NAME, \
215 __func__, fmt, ##args); \
217 #define DRM_LOG(fmt, args...) \
219 drm_ut_debug_printk(DRM_UT_CORE, NULL, \
220 NULL, fmt, ##args); \
222 #define DRM_LOG_KMS(fmt, args...) \
224 drm_ut_debug_printk(DRM_UT_KMS, NULL, \
225 NULL, fmt, ##args); \
227 #define DRM_LOG_MODE(fmt, args...) \
229 drm_ut_debug_printk(DRM_UT_MODE, NULL, \
230 NULL, fmt, ##args); \
232 #define DRM_LOG_DRIVER(fmt, args...) \
234 drm_ut_debug_printk(DRM_UT_DRIVER, NULL, \
235 NULL, fmt, ##args); \
238 #define DRM_DEBUG_DRIVER(fmt, args...) do { } while (0)
239 #define DRM_DEBUG_KMS(fmt, args...) do { } while (0)
240 #define DRM_DEBUG(fmt, arg...) do { } while (0)
241 #define DRM_LOG(fmt, arg...) do { } while (0)
242 #define DRM_LOG_KMS(fmt, args...) do { } while (0)
243 #define DRM_LOG_MODE(fmt, arg...) do { } while (0)
244 #define DRM_LOG_DRIVER(fmt, arg...) do { } while (0)
250 /***********************************************************************/
251 /** \name Internal types and structures */
254 #define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x)
256 #define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
257 #define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
259 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
262 * Test that the hardware lock is held by the caller, returning otherwise.
264 * \param dev DRM device.
265 * \param filp file pointer of the caller.
267 #define LOCK_TEST_WITH_RETURN( dev, _file_priv ) \
269 if (!_DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock) || \
270 _file_priv->master->lock.file_priv != _file_priv) { \
271 DRM_ERROR( "%s called without lock held, held %d owner %p %p\n",\
272 __func__, _DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock),\
273 _file_priv->master->lock.file_priv, _file_priv); \
279 * Ioctl function type.
281 * \param inode device inode.
282 * \param file_priv DRM file private pointer.
283 * \param cmd command.
284 * \param arg argument.
286 typedef int drm_ioctl_t(struct drm_device *dev, void *data,
287 struct drm_file *file_priv);
289 typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
293 #define DRM_MASTER 0x2
294 #define DRM_ROOT_ONLY 0x4
295 #define DRM_CONTROL_ALLOW 0x8
297 struct drm_ioctl_desc {
304 * Creates a driver or general drm_ioctl_desc array entry for the given
305 * ioctl, for use by drm_ioctl().
307 #define DRM_IOCTL_DEF(ioctl, _func, _flags) \
308 [DRM_IOCTL_NR(ioctl)] = {.cmd = ioctl, .func = _func, .flags = _flags}
310 struct drm_magic_entry {
311 struct list_head head;
312 struct drm_hash_item hash_item;
313 struct drm_file *priv;
316 struct drm_vma_entry {
317 struct list_head head;
318 struct vm_area_struct *vma;
326 int idx; /**< Index into master buflist */
327 int total; /**< Buffer size */
328 int order; /**< log-base-2(total) */
329 int used; /**< Amount of buffer in use (for DMA) */
330 unsigned long offset; /**< Byte offset (used internally) */
331 void *address; /**< Address of buffer */
332 unsigned long bus_address; /**< Bus address of buffer */
333 struct drm_buf *next; /**< Kernel-only: used for free list */
334 __volatile__ int waiting; /**< On kernel DMA queue */
335 __volatile__ int pending; /**< On hardware DMA queue */
336 wait_queue_head_t dma_wait; /**< Processes waiting */
337 struct drm_file *file_priv; /**< Private of holding file descr */
338 int context; /**< Kernel queue for this buffer */
339 int while_locked; /**< Dispatch this buffer while locked */
347 } list; /**< Which list we're on */
349 int dev_priv_size; /**< Size of buffer private storage */
350 void *dev_private; /**< Per-buffer private storage */
353 /** bufs is one longer than it has to be */
354 struct drm_waitlist {
355 int count; /**< Number of possible buffers */
356 struct drm_buf **bufs; /**< List of pointers to buffers */
357 struct drm_buf **rp; /**< Read pointer */
358 struct drm_buf **wp; /**< Write pointer */
359 struct drm_buf **end; /**< End pointer */
360 spinlock_t read_lock;
361 spinlock_t write_lock;
364 struct drm_freelist {
365 int initialized; /**< Freelist in use */
366 atomic_t count; /**< Number of free buffers */
367 struct drm_buf *next; /**< End pointer */
369 wait_queue_head_t waiting; /**< Processes waiting on free bufs */
370 int low_mark; /**< Low water mark */
371 int high_mark; /**< High water mark */
372 atomic_t wfh; /**< If waiting for high mark */
376 typedef struct drm_dma_handle {
383 * Buffer entry. There is one of this for each buffer size order.
385 struct drm_buf_entry {
386 int buf_size; /**< size */
387 int buf_count; /**< number of buffers */
388 struct drm_buf *buflist; /**< buffer list */
391 struct drm_dma_handle **seglist;
393 struct drm_freelist freelist;
396 /* Event queued up for userspace to read */
397 struct drm_pending_event {
398 struct drm_event *event;
399 struct list_head link;
400 struct drm_file *file_priv;
401 void (*destroy)(struct drm_pending_event *event);
404 /** File private data */
410 unsigned long ioctl_count;
411 struct list_head lhead;
412 struct drm_minor *minor;
413 unsigned long lock_count;
415 /** Mapping of mm object handles to object pointers. */
416 struct idr object_idr;
417 /** Lock for synchronization of access to object_idr. */
418 spinlock_t table_lock;
423 int is_master; /* this file private is a master for a minor */
424 struct drm_master *master; /* master this node is currently associated with
425 N.B. not always minor->master */
426 struct list_head fbs;
428 wait_queue_head_t event_wait;
429 struct list_head event_list;
435 atomic_t use_count; /**< Outstanding uses (+1) */
436 atomic_t finalization; /**< Finalization in progress */
437 atomic_t block_count; /**< Count of processes waiting */
438 atomic_t block_read; /**< Queue blocked for reads */
439 wait_queue_head_t read_queue; /**< Processes waiting on block_read */
440 atomic_t block_write; /**< Queue blocked for writes */
441 wait_queue_head_t write_queue; /**< Processes waiting on block_write */
442 atomic_t total_queued; /**< Total queued statistic */
443 atomic_t total_flushed; /**< Total flushes statistic */
444 atomic_t total_locks; /**< Total locks statistics */
445 enum drm_ctx_flags flags; /**< Context preserving and 2D-only */
446 struct drm_waitlist waitlist; /**< Pending buffers */
447 wait_queue_head_t flush_queue; /**< Processes waiting until flush */
453 struct drm_lock_data {
454 struct drm_hw_lock *hw_lock; /**< Hardware lock */
455 /** Private of lock holder's file (NULL=kernel) */
456 struct drm_file *file_priv;
457 wait_queue_head_t lock_queue; /**< Queue of blocked processes */
458 unsigned long lock_time; /**< Time of last lock in jiffies */
460 uint32_t kernel_waiters;
461 uint32_t user_waiters;
468 struct drm_device_dma {
470 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */
471 int buf_count; /**< total number of buffers */
472 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */
474 int page_count; /**< number of pages */
475 unsigned long *pagelist; /**< page list */
476 unsigned long byte_count;
478 _DRM_DMA_USE_AGP = 0x01,
479 _DRM_DMA_USE_SG = 0x02,
480 _DRM_DMA_USE_FB = 0x04,
481 _DRM_DMA_USE_PCI_RO = 0x08
487 * AGP memory entry. Stored as a doubly linked list.
490 unsigned long handle; /**< handle */
492 unsigned long bound; /**< address */
494 struct list_head head;
500 * \sa drm_agp_init() and drm_device::agp.
502 struct drm_agp_head {
503 DRM_AGP_KERN agp_info; /**< AGP device information */
504 struct list_head memory;
505 unsigned long mode; /**< AGP mode */
506 struct agp_bridge_data *bridge;
507 int enabled; /**< whether the AGP bus as been enabled */
508 int acquired; /**< whether the AGP device has been acquired */
511 int cant_use_aperture;
512 unsigned long page_mask;
516 * Scatter-gather memory.
519 unsigned long handle;
522 struct page **pagelist;
528 struct drm_hw_lock *lock;
533 * Kernel side of a mapping
535 struct drm_local_map {
536 resource_size_t offset; /**< Requested physical address (0 for SAREA)*/
537 unsigned long size; /**< Requested physical size (bytes) */
538 enum drm_map_type type; /**< Type of memory to map */
539 enum drm_map_flags flags; /**< Flags */
540 void *handle; /**< User-space: "Handle" to pass to mmap() */
541 /**< Kernel-space: kernel-virtual address */
542 int mtrr; /**< MTRR slot used */
545 typedef struct drm_local_map drm_local_map_t;
550 struct drm_map_list {
551 struct list_head head; /**< list head */
552 struct drm_hash_item hash;
553 struct drm_local_map *map; /**< mapping */
555 struct drm_master *master;
556 struct drm_mm_node *file_offset_node; /**< fake offset */
560 * Context handle list
562 struct drm_ctx_list {
563 struct list_head head; /**< list head */
564 drm_context_t handle; /**< context handle */
565 struct drm_file *tag; /**< associated fd private data */
568 /* location of GART table */
569 #define DRM_ATI_GART_MAIN 1
570 #define DRM_ATI_GART_FB 2
572 #define DRM_ATI_GART_PCI 1
573 #define DRM_ATI_GART_PCIE 2
574 #define DRM_ATI_GART_IGP 3
576 struct drm_ati_pcigart_info {
577 int gart_table_location;
581 dma_addr_t table_mask;
582 struct drm_dma_handle *table_handle;
583 struct drm_local_map mapping;
588 * GEM specific mm private for tracking GEM objects
591 struct drm_mm offset_manager; /**< Offset mgmt for buffer objects */
592 struct drm_open_hash offset_hash; /**< User token hash table for maps */
596 * This structure defines the drm_mm memory object, which will be used by the
597 * DRM for its buffer objects.
599 struct drm_gem_object {
600 /** Reference count of this object */
601 struct kref refcount;
603 /** Handle count of this object. Each handle also holds a reference */
604 struct kref handlecount;
606 /** Related drm device */
607 struct drm_device *dev;
609 /** File representing the shmem storage */
612 /* Mapping info for this object */
613 struct drm_map_list map_list;
616 * Size of the object, in bytes. Immutable over the object's
622 * Global name for this object, starts at 1. 0 means unnamed.
623 * Access is covered by the object_name_lock in the related drm_device
628 * Memory domains. These monitor which caches contain read/write data
629 * related to the object. When transitioning from one set of domains
630 * to another, the driver is called to ensure that caches are suitably
631 * flushed and invalidated
633 uint32_t read_domains;
634 uint32_t write_domain;
637 * While validating an exec operation, the
638 * new read/write domain values are computed here.
639 * They will be transferred to the above values
640 * at the point that any cache flushing occurs
642 uint32_t pending_read_domains;
643 uint32_t pending_write_domain;
645 void *driver_private;
648 #include "drm_crtc.h"
650 /* per-master structure */
653 struct kref refcount; /* refcount for this master */
655 struct list_head head; /**< each minor contains a list of masters */
656 struct drm_minor *minor; /**< link back to minor we are a master for */
658 char *unique; /**< Unique identifier: e.g., busid */
659 int unique_len; /**< Length of unique field */
660 int unique_size; /**< amount allocated */
662 int blocked; /**< Blocked due to VC switch? */
664 /** \name Authentication */
666 struct drm_open_hash magiclist;
667 struct list_head magicfree;
670 struct drm_lock_data lock; /**< Information on hardware lock */
672 void *driver_priv; /**< Private structure for driver to use */
676 * DRM driver structure. This structure represent the common code for
677 * a family of cards. There will one drm_device for each card present
681 int (*load) (struct drm_device *, unsigned long flags);
682 int (*firstopen) (struct drm_device *);
683 int (*open) (struct drm_device *, struct drm_file *);
684 void (*preclose) (struct drm_device *, struct drm_file *file_priv);
685 void (*postclose) (struct drm_device *, struct drm_file *);
686 void (*lastclose) (struct drm_device *);
687 int (*unload) (struct drm_device *);
688 int (*suspend) (struct drm_device *, pm_message_t state);
689 int (*resume) (struct drm_device *);
690 int (*dma_ioctl) (struct drm_device *dev, void *data, struct drm_file *file_priv);
691 void (*dma_ready) (struct drm_device *);
692 int (*dma_quiescent) (struct drm_device *);
693 int (*context_ctor) (struct drm_device *dev, int context);
694 int (*context_dtor) (struct drm_device *dev, int context);
695 int (*kernel_context_switch) (struct drm_device *dev, int old,
697 void (*kernel_context_switch_unlock) (struct drm_device *dev);
700 * get_vblank_counter - get raw hardware vblank counter
702 * @crtc: counter to fetch
704 * Driver callback for fetching a raw hardware vblank counter
705 * for @crtc. If a device doesn't have a hardware counter, the
706 * driver can simply return the value of drm_vblank_count and
707 * make the enable_vblank() and disable_vblank() hooks into no-ops,
708 * leaving interrupts enabled at all times.
710 * Wraparound handling and loss of events due to modesetting is dealt
711 * with in the DRM core code.
714 * Raw vblank counter value.
716 u32 (*get_vblank_counter) (struct drm_device *dev, int crtc);
719 * enable_vblank - enable vblank interrupt events
721 * @crtc: which irq to enable
723 * Enable vblank interrupts for @crtc. If the device doesn't have
724 * a hardware vblank counter, this routine should be a no-op, since
725 * interrupts will have to stay on to keep the count accurate.
728 * Zero on success, appropriate errno if the given @crtc's vblank
729 * interrupt cannot be enabled.
731 int (*enable_vblank) (struct drm_device *dev, int crtc);
734 * disable_vblank - disable vblank interrupt events
736 * @crtc: which irq to enable
738 * Disable vblank interrupts for @crtc. If the device doesn't have
739 * a hardware vblank counter, this routine should be a no-op, since
740 * interrupts will have to stay on to keep the count accurate.
742 void (*disable_vblank) (struct drm_device *dev, int crtc);
745 * Called by \c drm_device_is_agp. Typically used to determine if a
746 * card is really attached to AGP or not.
748 * \param dev DRM device handle
751 * One of three values is returned depending on whether or not the
752 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
753 * (return of 1), or may or may not be AGP (return of 2).
755 int (*device_is_agp) (struct drm_device *dev);
757 /* these have to be filled in */
759 irqreturn_t(*irq_handler) (DRM_IRQ_ARGS);
760 void (*irq_preinstall) (struct drm_device *dev);
761 int (*irq_postinstall) (struct drm_device *dev);
762 void (*irq_uninstall) (struct drm_device *dev);
763 void (*reclaim_buffers) (struct drm_device *dev,
764 struct drm_file * file_priv);
765 void (*reclaim_buffers_locked) (struct drm_device *dev,
766 struct drm_file *file_priv);
767 void (*reclaim_buffers_idlelocked) (struct drm_device *dev,
768 struct drm_file *file_priv);
769 resource_size_t (*get_map_ofs) (struct drm_local_map * map);
770 resource_size_t (*get_reg_ofs) (struct drm_device *dev);
771 void (*set_version) (struct drm_device *dev,
772 struct drm_set_version *sv);
774 /* Master routines */
775 int (*master_create)(struct drm_device *dev, struct drm_master *master);
776 void (*master_destroy)(struct drm_device *dev, struct drm_master *master);
778 int (*proc_init)(struct drm_minor *minor);
779 void (*proc_cleanup)(struct drm_minor *minor);
780 int (*debugfs_init)(struct drm_minor *minor);
781 void (*debugfs_cleanup)(struct drm_minor *minor);
784 * Driver-specific constructor for drm_gem_objects, to set up
785 * obj->driver_private.
787 * Returns 0 on success.
789 int (*gem_init_object) (struct drm_gem_object *obj);
790 void (*gem_free_object) (struct drm_gem_object *obj);
792 /* vga arb irq handler */
793 void (*vgaarb_irq)(struct drm_device *dev, bool state);
795 /* Driver private ops for this object */
796 struct vm_operations_struct *gem_vm_ops;
807 struct drm_ioctl_desc *ioctls;
809 struct file_operations fops;
810 struct pci_driver pci_driver;
811 /* List of devices hanging off this driver */
812 struct list_head device_list;
815 #define DRM_MINOR_UNASSIGNED 0
816 #define DRM_MINOR_LEGACY 1
817 #define DRM_MINOR_CONTROL 2
818 #define DRM_MINOR_RENDER 3
822 * debugfs node list. This structure represents a debugfs file to
823 * be created by the drm core
825 struct drm_debugfs_list {
826 const char *name; /** file name */
827 int (*show)(struct seq_file*, void*); /** show callback */
828 u32 driver_features; /**< Required driver features for this entry */
832 * debugfs node structure. This structure represents a debugfs file.
834 struct drm_debugfs_node {
835 struct list_head list;
836 struct drm_minor *minor;
837 struct drm_debugfs_list *debugfs_ent;
842 * Info file list entry. This structure represents a debugfs or proc file to
843 * be created by the drm core
845 struct drm_info_list {
846 const char *name; /** file name */
847 int (*show)(struct seq_file*, void*); /** show callback */
848 u32 driver_features; /**< Required driver features for this entry */
853 * debugfs node structure. This structure represents a debugfs file.
855 struct drm_info_node {
856 struct list_head list;
857 struct drm_minor *minor;
858 struct drm_info_list *info_ent;
863 * DRM minor structure. This structure represents a drm minor number.
866 int index; /**< Minor device number */
867 int type; /**< Control or render */
868 dev_t device; /**< Device number for mknod */
869 struct device kdev; /**< Linux device */
870 struct drm_device *dev;
872 struct proc_dir_entry *proc_root; /**< proc directory entry */
873 struct drm_info_node proc_nodes;
874 struct dentry *debugfs_root;
875 struct drm_info_node debugfs_nodes;
877 struct drm_master *master; /* currently active master for this node */
878 struct list_head master_list;
879 struct drm_mode_group mode_group;
882 struct drm_pending_vblank_event {
883 struct drm_pending_event base;
885 struct drm_event_vblank event;
889 * DRM device structure. This structure represent a complete card that
890 * may contain multiple heads.
893 struct list_head driver_item; /**< list of devices per driver */
894 char *devname; /**< For /proc/interrupts */
895 int if_version; /**< Highest interface version set */
899 spinlock_t count_lock; /**< For inuse, drm_device::open_count, drm_device::buf_use */
900 struct mutex struct_mutex; /**< For others */
903 /** \name Usage Counters */
905 int open_count; /**< Outstanding files open */
906 atomic_t ioctl_count; /**< Outstanding IOCTLs pending */
907 atomic_t vma_count; /**< Outstanding vma areas open */
908 int buf_use; /**< Buffers in use -- cannot alloc */
909 atomic_t buf_alloc; /**< Buffer allocation in progress */
912 /** \name Performance counters */
914 unsigned long counters;
915 enum drm_stat_type types[15];
919 struct list_head filelist;
921 /** \name Memory management */
923 struct list_head maplist; /**< Linked list of regions */
924 int map_count; /**< Number of mappable regions */
925 struct drm_open_hash map_hash; /**< User token hash table for maps */
927 /** \name Context handle management */
929 struct list_head ctxlist; /**< Linked list of context handles */
930 int ctx_count; /**< Number of context handles */
931 struct mutex ctxlist_mutex; /**< For ctxlist */
935 struct list_head vmalist; /**< List of vmas (for debugging) */
939 /** \name DMA queues (contexts) */
941 int queue_count; /**< Number of active DMA queues */
942 int queue_reserved; /**< Number of reserved DMA queues */
943 int queue_slots; /**< Actual length of queuelist */
944 struct drm_queue **queuelist; /**< Vector of pointers to DMA queues */
945 struct drm_device_dma *dma; /**< Optional pointer for DMA support */
948 /** \name Context support */
950 int irq_enabled; /**< True if irq handler is enabled */
951 __volatile__ long context_flag; /**< Context swapping flag */
952 __volatile__ long interrupt_flag; /**< Interruption handler flag */
953 __volatile__ long dma_flag; /**< DMA dispatch flag */
954 struct timer_list timer; /**< Timer for delaying ctx switch */
955 wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */
956 int last_checked; /**< Last context checked for DMA */
957 int last_context; /**< Last current context */
958 unsigned long last_switch; /**< jiffies at last context switch */
961 struct work_struct work;
962 /** \name VBLANK IRQ support */
966 * At load time, disabling the vblank interrupt won't be allowed since
967 * old clients may not call the modeset ioctl and therefore misbehave.
968 * Once the modeset ioctl *has* been called though, we can safely
969 * disable them when unused.
971 int vblank_disable_allowed;
973 wait_queue_head_t *vbl_queue; /**< VBLANK wait queue */
974 atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */
976 atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */
977 u32 *last_vblank; /* protected by dev->vbl_lock, used */
978 /* for wraparound handling */
979 int *vblank_enabled; /* so we don't call enable more than
981 int *vblank_inmodeset; /* Display driver is setting mode */
982 u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */
983 struct timer_list vblank_disable_timer;
985 u32 max_vblank_count; /**< size of vblank counter register */
990 struct list_head vblank_event_list;
991 spinlock_t event_lock;
997 struct fasync_struct *buf_async;/**< Processes waiting for SIGIO */
998 wait_queue_head_t buf_readers; /**< Processes waiting to read */
999 wait_queue_head_t buf_writers; /**< Processes waiting to ctx switch */
1001 struct drm_agp_head *agp; /**< AGP data */
1003 struct pci_dev *pdev; /**< PCI device structure */
1004 int pci_vendor; /**< PCI vendor id */
1005 int pci_device; /**< PCI device id */
1007 struct pci_controller *hose;
1009 struct drm_sg_mem *sg; /**< Scatter gather memory */
1010 int num_crtcs; /**< Number of CRTCs on this device */
1011 void *dev_private; /**< device private data */
1013 struct address_space *dev_mapping;
1014 struct drm_sigdata sigdata; /**< For block_all_signals */
1017 struct drm_driver *driver;
1018 struct drm_local_map *agp_buffer_map;
1019 unsigned int agp_buffer_token;
1020 struct drm_minor *control; /**< Control node for card */
1021 struct drm_minor *primary; /**< render type primary screen head */
1023 /** \name Drawable information */
1025 spinlock_t drw_lock;
1029 struct drm_mode_config mode_config; /**< Current mode config */
1031 /** \name GEM information */
1033 spinlock_t object_name_lock;
1034 struct idr object_name_idr;
1035 atomic_t object_count;
1036 atomic_t object_memory;
1038 atomic_t pin_memory;
1040 atomic_t gtt_memory;
1042 uint32_t invalidate_domains; /* domains pending invalidation */
1043 uint32_t flush_domains; /* domains pending flush */
1048 static inline int drm_dev_to_irq(struct drm_device *dev)
1050 return dev->pdev->irq;
1053 static __inline__ int drm_core_check_feature(struct drm_device *dev,
1056 return ((dev->driver->driver_features & feature) ? 1 : 0);
1060 #define drm_get_pci_domain(dev) dev->hose->index
1062 #define drm_get_pci_domain(dev) 0
1066 static inline int drm_core_has_AGP(struct drm_device *dev)
1068 return drm_core_check_feature(dev, DRIVER_USE_AGP);
1071 #define drm_core_has_AGP(dev) (0)
1075 static inline int drm_core_has_MTRR(struct drm_device *dev)
1077 return drm_core_check_feature(dev, DRIVER_USE_MTRR);
1080 #define DRM_MTRR_WC MTRR_TYPE_WRCOMB
1082 static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
1085 return mtrr_add(offset, size, flags, 1);
1088 static inline int drm_mtrr_del(int handle, unsigned long offset,
1089 unsigned long size, unsigned int flags)
1091 return mtrr_del(handle, offset, size);
1095 #define drm_core_has_MTRR(dev) (0)
1097 #define DRM_MTRR_WC 0
1099 static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
1105 static inline int drm_mtrr_del(int handle, unsigned long offset,
1106 unsigned long size, unsigned int flags)
1112 /******************************************************************/
1113 /** \name Internal function definitions */
1116 /* Driver support (drm_drv.h) */
1117 extern int drm_init(struct drm_driver *driver);
1118 extern void drm_exit(struct drm_driver *driver);
1119 extern int drm_ioctl(struct inode *inode, struct file *filp,
1120 unsigned int cmd, unsigned long arg);
1121 extern long drm_compat_ioctl(struct file *filp,
1122 unsigned int cmd, unsigned long arg);
1123 extern int drm_lastclose(struct drm_device *dev);
1125 /* Device support (drm_fops.h) */
1126 extern int drm_open(struct inode *inode, struct file *filp);
1127 extern int drm_stub_open(struct inode *inode, struct file *filp);
1128 extern int drm_fasync(int fd, struct file *filp, int on);
1129 extern ssize_t drm_read(struct file *filp, char __user *buffer,
1130 size_t count, loff_t *offset);
1131 extern int drm_release(struct inode *inode, struct file *filp);
1133 /* Mapping support (drm_vm.h) */
1134 extern int drm_mmap(struct file *filp, struct vm_area_struct *vma);
1135 extern int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma);
1136 extern void drm_vm_open_locked(struct vm_area_struct *vma);
1137 extern resource_size_t drm_core_get_map_ofs(struct drm_local_map * map);
1138 extern resource_size_t drm_core_get_reg_ofs(struct drm_device *dev);
1139 extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait);
1141 /* Memory management support (drm_memory.h) */
1142 #include "drm_memory.h"
1143 extern void drm_mem_init(void);
1144 extern int drm_mem_info(char *buf, char **start, off_t offset,
1145 int request, int *eof, void *data);
1146 extern void *drm_realloc(void *oldpt, size_t oldsize, size_t size, int area);
1148 extern DRM_AGP_MEM *drm_alloc_agp(struct drm_device *dev, int pages, u32 type);
1149 extern int drm_free_agp(DRM_AGP_MEM * handle, int pages);
1150 extern int drm_bind_agp(DRM_AGP_MEM * handle, unsigned int start);
1151 extern DRM_AGP_MEM *drm_agp_bind_pages(struct drm_device *dev,
1152 struct page **pages,
1153 unsigned long num_pages,
1154 uint32_t gtt_offset,
1156 extern int drm_unbind_agp(DRM_AGP_MEM * handle);
1158 /* Misc. IOCTL support (drm_ioctl.h) */
1159 extern int drm_irq_by_busid(struct drm_device *dev, void *data,
1160 struct drm_file *file_priv);
1161 extern int drm_getunique(struct drm_device *dev, void *data,
1162 struct drm_file *file_priv);
1163 extern int drm_setunique(struct drm_device *dev, void *data,
1164 struct drm_file *file_priv);
1165 extern int drm_getmap(struct drm_device *dev, void *data,
1166 struct drm_file *file_priv);
1167 extern int drm_getclient(struct drm_device *dev, void *data,
1168 struct drm_file *file_priv);
1169 extern int drm_getstats(struct drm_device *dev, void *data,
1170 struct drm_file *file_priv);
1171 extern int drm_setversion(struct drm_device *dev, void *data,
1172 struct drm_file *file_priv);
1173 extern int drm_noop(struct drm_device *dev, void *data,
1174 struct drm_file *file_priv);
1176 /* Context IOCTL support (drm_context.h) */
1177 extern int drm_resctx(struct drm_device *dev, void *data,
1178 struct drm_file *file_priv);
1179 extern int drm_addctx(struct drm_device *dev, void *data,
1180 struct drm_file *file_priv);
1181 extern int drm_modctx(struct drm_device *dev, void *data,
1182 struct drm_file *file_priv);
1183 extern int drm_getctx(struct drm_device *dev, void *data,
1184 struct drm_file *file_priv);
1185 extern int drm_switchctx(struct drm_device *dev, void *data,
1186 struct drm_file *file_priv);
1187 extern int drm_newctx(struct drm_device *dev, void *data,
1188 struct drm_file *file_priv);
1189 extern int drm_rmctx(struct drm_device *dev, void *data,
1190 struct drm_file *file_priv);
1192 extern int drm_ctxbitmap_init(struct drm_device *dev);
1193 extern void drm_ctxbitmap_cleanup(struct drm_device *dev);
1194 extern void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
1196 extern int drm_setsareactx(struct drm_device *dev, void *data,
1197 struct drm_file *file_priv);
1198 extern int drm_getsareactx(struct drm_device *dev, void *data,
1199 struct drm_file *file_priv);
1201 /* Drawable IOCTL support (drm_drawable.h) */
1202 extern int drm_adddraw(struct drm_device *dev, void *data,
1203 struct drm_file *file_priv);
1204 extern int drm_rmdraw(struct drm_device *dev, void *data,
1205 struct drm_file *file_priv);
1206 extern int drm_update_drawable_info(struct drm_device *dev, void *data,
1207 struct drm_file *file_priv);
1208 extern struct drm_drawable_info *drm_get_drawable_info(struct drm_device *dev,
1210 extern void drm_drawable_free_all(struct drm_device *dev);
1212 /* Authentication IOCTL support (drm_auth.h) */
1213 extern int drm_getmagic(struct drm_device *dev, void *data,
1214 struct drm_file *file_priv);
1215 extern int drm_authmagic(struct drm_device *dev, void *data,
1216 struct drm_file *file_priv);
1218 /* Cache management (drm_cache.c) */
1219 void drm_clflush_pages(struct page *pages[], unsigned long num_pages);
1221 /* Locking IOCTL support (drm_lock.h) */
1222 extern int drm_lock(struct drm_device *dev, void *data,
1223 struct drm_file *file_priv);
1224 extern int drm_unlock(struct drm_device *dev, void *data,
1225 struct drm_file *file_priv);
1226 extern int drm_lock_take(struct drm_lock_data *lock_data, unsigned int context);
1227 extern int drm_lock_free(struct drm_lock_data *lock_data, unsigned int context);
1228 extern void drm_idlelock_take(struct drm_lock_data *lock_data);
1229 extern void drm_idlelock_release(struct drm_lock_data *lock_data);
1232 * These are exported to drivers so that they can implement fencing using
1233 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
1236 extern int drm_i_have_hw_lock(struct drm_device *dev, struct drm_file *file_priv);
1238 /* Buffer management support (drm_bufs.h) */
1239 extern int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc * request);
1240 extern int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc * request);
1241 extern int drm_addmap(struct drm_device *dev, resource_size_t offset,
1242 unsigned int size, enum drm_map_type type,
1243 enum drm_map_flags flags, struct drm_local_map **map_ptr);
1244 extern int drm_addmap_ioctl(struct drm_device *dev, void *data,
1245 struct drm_file *file_priv);
1246 extern int drm_rmmap(struct drm_device *dev, struct drm_local_map *map);
1247 extern int drm_rmmap_locked(struct drm_device *dev, struct drm_local_map *map);
1248 extern int drm_rmmap_ioctl(struct drm_device *dev, void *data,
1249 struct drm_file *file_priv);
1250 extern int drm_addbufs(struct drm_device *dev, void *data,
1251 struct drm_file *file_priv);
1252 extern int drm_infobufs(struct drm_device *dev, void *data,
1253 struct drm_file *file_priv);
1254 extern int drm_markbufs(struct drm_device *dev, void *data,
1255 struct drm_file *file_priv);
1256 extern int drm_freebufs(struct drm_device *dev, void *data,
1257 struct drm_file *file_priv);
1258 extern int drm_mapbufs(struct drm_device *dev, void *data,
1259 struct drm_file *file_priv);
1260 extern int drm_order(unsigned long size);
1261 extern resource_size_t drm_get_resource_start(struct drm_device *dev,
1262 unsigned int resource);
1263 extern resource_size_t drm_get_resource_len(struct drm_device *dev,
1264 unsigned int resource);
1266 /* DMA support (drm_dma.h) */
1267 extern int drm_dma_setup(struct drm_device *dev);
1268 extern void drm_dma_takedown(struct drm_device *dev);
1269 extern void drm_free_buffer(struct drm_device *dev, struct drm_buf * buf);
1270 extern void drm_core_reclaim_buffers(struct drm_device *dev,
1271 struct drm_file *filp);
1273 /* IRQ support (drm_irq.h) */
1274 extern int drm_control(struct drm_device *dev, void *data,
1275 struct drm_file *file_priv);
1276 extern irqreturn_t drm_irq_handler(DRM_IRQ_ARGS);
1277 extern int drm_irq_install(struct drm_device *dev);
1278 extern int drm_irq_uninstall(struct drm_device *dev);
1279 extern void drm_driver_irq_preinstall(struct drm_device *dev);
1280 extern void drm_driver_irq_postinstall(struct drm_device *dev);
1281 extern void drm_driver_irq_uninstall(struct drm_device *dev);
1283 extern int drm_vblank_init(struct drm_device *dev, int num_crtcs);
1284 extern int drm_wait_vblank(struct drm_device *dev, void *data,
1285 struct drm_file *filp);
1286 extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq);
1287 extern u32 drm_vblank_count(struct drm_device *dev, int crtc);
1288 extern void drm_handle_vblank(struct drm_device *dev, int crtc);
1289 extern int drm_vblank_get(struct drm_device *dev, int crtc);
1290 extern void drm_vblank_put(struct drm_device *dev, int crtc);
1291 extern void drm_vblank_cleanup(struct drm_device *dev);
1292 /* Modesetting support */
1293 extern void drm_vblank_pre_modeset(struct drm_device *dev, int crtc);
1294 extern void drm_vblank_post_modeset(struct drm_device *dev, int crtc);
1295 extern int drm_modeset_ctl(struct drm_device *dev, void *data,
1296 struct drm_file *file_priv);
1298 /* AGP/GART support (drm_agpsupport.h) */
1299 extern struct drm_agp_head *drm_agp_init(struct drm_device *dev);
1300 extern int drm_agp_acquire(struct drm_device *dev);
1301 extern int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
1302 struct drm_file *file_priv);
1303 extern int drm_agp_release(struct drm_device *dev);
1304 extern int drm_agp_release_ioctl(struct drm_device *dev, void *data,
1305 struct drm_file *file_priv);
1306 extern int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode);
1307 extern int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
1308 struct drm_file *file_priv);
1309 extern int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info);
1310 extern int drm_agp_info_ioctl(struct drm_device *dev, void *data,
1311 struct drm_file *file_priv);
1312 extern int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request);
1313 extern int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
1314 struct drm_file *file_priv);
1315 extern int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request);
1316 extern int drm_agp_free_ioctl(struct drm_device *dev, void *data,
1317 struct drm_file *file_priv);
1318 extern int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request);
1319 extern int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
1320 struct drm_file *file_priv);
1321 extern int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
1322 extern int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
1323 struct drm_file *file_priv);
1324 extern DRM_AGP_MEM *drm_agp_allocate_memory(struct agp_bridge_data *bridge, size_t pages, u32 type);
1325 extern int drm_agp_free_memory(DRM_AGP_MEM * handle);
1326 extern int drm_agp_bind_memory(DRM_AGP_MEM * handle, off_t start);
1327 extern int drm_agp_unbind_memory(DRM_AGP_MEM * handle);
1328 extern void drm_agp_chipset_flush(struct drm_device *dev);
1330 /* Stub support (drm_stub.h) */
1331 extern int drm_setmaster_ioctl(struct drm_device *dev, void *data,
1332 struct drm_file *file_priv);
1333 extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
1334 struct drm_file *file_priv);
1335 struct drm_master *drm_master_create(struct drm_minor *minor);
1336 extern struct drm_master *drm_master_get(struct drm_master *master);
1337 extern void drm_master_put(struct drm_master **master);
1338 extern int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
1339 struct drm_driver *driver);
1340 extern void drm_put_dev(struct drm_device *dev);
1341 extern int drm_put_minor(struct drm_minor **minor);
1342 extern unsigned int drm_debug;
1344 extern struct class *drm_class;
1345 extern struct proc_dir_entry *drm_proc_root;
1346 extern struct dentry *drm_debugfs_root;
1348 extern struct idr drm_minors_idr;
1350 extern struct drm_local_map *drm_getsarea(struct drm_device *dev);
1352 /* Proc support (drm_proc.h) */
1353 extern int drm_proc_init(struct drm_minor *minor, int minor_id,
1354 struct proc_dir_entry *root);
1355 extern int drm_proc_cleanup(struct drm_minor *minor, struct proc_dir_entry *root);
1357 /* Debugfs support */
1358 #if defined(CONFIG_DEBUG_FS)
1359 extern int drm_debugfs_init(struct drm_minor *minor, int minor_id,
1360 struct dentry *root);
1361 extern int drm_debugfs_create_files(struct drm_info_list *files, int count,
1362 struct dentry *root, struct drm_minor *minor);
1363 extern int drm_debugfs_remove_files(struct drm_info_list *files, int count,
1364 struct drm_minor *minor);
1365 extern int drm_debugfs_cleanup(struct drm_minor *minor);
1368 /* Info file support */
1369 extern int drm_name_info(struct seq_file *m, void *data);
1370 extern int drm_vm_info(struct seq_file *m, void *data);
1371 extern int drm_queues_info(struct seq_file *m, void *data);
1372 extern int drm_bufs_info(struct seq_file *m, void *data);
1373 extern int drm_vblank_info(struct seq_file *m, void *data);
1374 extern int drm_clients_info(struct seq_file *m, void* data);
1375 extern int drm_gem_name_info(struct seq_file *m, void *data);
1376 extern int drm_gem_object_info(struct seq_file *m, void* data);
1379 extern int drm_vma_info(struct seq_file *m, void *data);
1382 /* Scatter Gather Support (drm_scatter.h) */
1383 extern void drm_sg_cleanup(struct drm_sg_mem * entry);
1384 extern int drm_sg_alloc_ioctl(struct drm_device *dev, void *data,
1385 struct drm_file *file_priv);
1386 extern int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request);
1387 extern int drm_sg_free(struct drm_device *dev, void *data,
1388 struct drm_file *file_priv);
1390 /* ATI PCIGART support (ati_pcigart.h) */
1391 extern int drm_ati_pcigart_init(struct drm_device *dev,
1392 struct drm_ati_pcigart_info * gart_info);
1393 extern int drm_ati_pcigart_cleanup(struct drm_device *dev,
1394 struct drm_ati_pcigart_info * gart_info);
1396 extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
1397 size_t align, dma_addr_t maxaddr);
1398 extern void __drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
1399 extern void drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
1401 /* sysfs support (drm_sysfs.c) */
1402 struct drm_sysfs_class;
1403 extern struct class *drm_sysfs_create(struct module *owner, char *name);
1404 extern void drm_sysfs_destroy(void);
1405 extern int drm_sysfs_device_add(struct drm_minor *minor);
1406 extern void drm_sysfs_hotplug_event(struct drm_device *dev);
1407 extern void drm_sysfs_device_remove(struct drm_minor *minor);
1408 extern char *drm_get_connector_status_name(enum drm_connector_status status);
1409 extern int drm_sysfs_connector_add(struct drm_connector *connector);
1410 extern void drm_sysfs_connector_remove(struct drm_connector *connector);
1412 /* Graphics Execution Manager library functions (drm_gem.c) */
1413 int drm_gem_init(struct drm_device *dev);
1414 void drm_gem_destroy(struct drm_device *dev);
1415 void drm_gem_object_free(struct kref *kref);
1416 struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev,
1418 void drm_gem_object_handle_free(struct kref *kref);
1419 void drm_gem_vm_open(struct vm_area_struct *vma);
1420 void drm_gem_vm_close(struct vm_area_struct *vma);
1421 int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
1424 drm_gem_object_reference(struct drm_gem_object *obj)
1426 kref_get(&obj->refcount);
1430 drm_gem_object_unreference(struct drm_gem_object *obj)
1435 kref_put(&obj->refcount, drm_gem_object_free);
1438 int drm_gem_handle_create(struct drm_file *file_priv,
1439 struct drm_gem_object *obj,
1443 drm_gem_object_handle_reference(struct drm_gem_object *obj)
1445 drm_gem_object_reference(obj);
1446 kref_get(&obj->handlecount);
1450 drm_gem_object_handle_unreference(struct drm_gem_object *obj)
1456 * Must bump handle count first as this may be the last
1457 * ref, in which case the object would disappear before we
1458 * checked for a name
1460 kref_put(&obj->handlecount, drm_gem_object_handle_free);
1461 drm_gem_object_unreference(obj);
1464 struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev,
1465 struct drm_file *filp,
1467 int drm_gem_close_ioctl(struct drm_device *dev, void *data,
1468 struct drm_file *file_priv);
1469 int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
1470 struct drm_file *file_priv);
1471 int drm_gem_open_ioctl(struct drm_device *dev, void *data,
1472 struct drm_file *file_priv);
1473 void drm_gem_open(struct drm_device *dev, struct drm_file *file_private);
1474 void drm_gem_release(struct drm_device *dev, struct drm_file *file_private);
1476 extern void drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev);
1477 extern void drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev);
1478 extern void drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev);
1480 static __inline__ struct drm_local_map *drm_core_findmap(struct drm_device *dev,
1483 struct drm_map_list *_entry;
1484 list_for_each_entry(_entry, &dev->maplist, head)
1485 if (_entry->user_token == token)
1490 static __inline__ int drm_device_is_agp(struct drm_device *dev)
1492 if (dev->driver->device_is_agp != NULL) {
1493 int err = (*dev->driver->device_is_agp) (dev);
1500 return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP);
1503 static __inline__ int drm_device_is_pcie(struct drm_device *dev)
1505 return pci_find_capability(dev->pdev, PCI_CAP_ID_EXP);
1508 static __inline__ void drm_core_dropmap(struct drm_local_map *map)
1513 static __inline__ void *drm_calloc_large(size_t nmemb, size_t size)
1515 if (size != 0 && nmemb > ULONG_MAX / size)
1518 if (size * nmemb <= PAGE_SIZE)
1519 return kcalloc(nmemb, size, GFP_KERNEL);
1521 return __vmalloc(size * nmemb,
1522 GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO, PAGE_KERNEL);
1525 /* Modeled after cairo's malloc_ab, it's like calloc but without the zeroing. */
1526 static __inline__ void *drm_malloc_ab(size_t nmemb, size_t size)
1528 if (size != 0 && nmemb > ULONG_MAX / size)
1531 if (size * nmemb <= PAGE_SIZE)
1532 return kmalloc(nmemb * size, GFP_KERNEL);
1534 return __vmalloc(size * nmemb,
1535 GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL);
1538 static __inline void drm_free_large(void *ptr)
1540 if (!is_vmalloc_addr(ptr))
1547 #endif /* __KERNEL__ */