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/version.h>
53 #include <linux/sched.h>
54 #include <linux/smp_lock.h> /* For (un)lock_kernel */
55 #include <linux/dma-mapping.h>
57 #include <linux/swap.h>
58 #include <linux/kref.h>
59 #include <linux/pagemap.h>
60 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
61 #include <linux/mutex.h>
63 #if defined(__alpha__) || defined(__powerpc__)
64 #include <asm/pgtable.h> /* For pte_wrprotect */
68 #include <asm/uaccess.h>
73 #if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
74 #include <linux/types.h>
75 #include <linux/agp_backend.h>
77 #include <linux/workqueue.h>
78 #include <linux/poll.h>
79 #include <asm/pgalloc.h>
81 #include <linux/slab.h>
82 #include <linux/idr.h>
84 #define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE)))
85 #define __OS_HAS_MTRR (defined(CONFIG_MTRR))
87 #include "drm_os_linux.h"
88 #include "drm_hashtab.h"
89 #include "drm_internal.h"
94 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24)
95 typedef unsigned long uintptr_t;
98 /* If you want the memory alloc debug functionality, change define below */
99 /* #define DEBUG_MEMORY */
101 /***********************************************************************/
102 /** \name DRM template customization defaults */
105 /* driver capabilities and requirements mask */
106 #define DRIVER_USE_AGP 0x1
107 #define DRIVER_REQUIRE_AGP 0x2
108 #define DRIVER_USE_MTRR 0x4
109 #define DRIVER_PCI_DMA 0x8
110 #define DRIVER_SG 0x10
111 #define DRIVER_HAVE_DMA 0x20
112 #define DRIVER_HAVE_IRQ 0x40
113 #define DRIVER_IRQ_SHARED 0x80
114 #define DRIVER_DMA_QUEUE 0x100
115 #define DRIVER_FB_DMA 0x200
116 #define DRIVER_MODESET 0x400
117 #define DRIVER_GEM 0x800
121 /***********************************************************************/
122 /** \name Begin the DRM... */
125 #define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then
126 also include looping detection. */
128 #define DRM_MAGIC_HASH_ORDER 4 /**< Size of key hash table. Must be power of 2. */
129 #define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */
130 #define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */
131 #define DRM_LOOPING_LIMIT 5000000
132 #define DRM_TIME_SLICE (HZ/20) /**< Time slice for GLXContexts */
133 #define DRM_LOCK_SLICE 1 /**< Time slice for lock, in jiffies */
135 #define DRM_FLAG_DEBUG 0x01
137 #define DRM_MEM_DMA 0
138 #define DRM_MEM_SAREA 1
139 #define DRM_MEM_DRIVER 2
140 #define DRM_MEM_MAGIC 3
141 #define DRM_MEM_IOCTLS 4
142 #define DRM_MEM_MAPS 5
143 #define DRM_MEM_VMAS 6
144 #define DRM_MEM_BUFS 7
145 #define DRM_MEM_SEGS 8
146 #define DRM_MEM_PAGES 9
147 #define DRM_MEM_FILES 10
148 #define DRM_MEM_QUEUES 11
149 #define DRM_MEM_CMDS 12
150 #define DRM_MEM_MAPPINGS 13
151 #define DRM_MEM_BUFLISTS 14
152 #define DRM_MEM_AGPLISTS 15
153 #define DRM_MEM_TOTALAGP 16
154 #define DRM_MEM_BOUNDAGP 17
155 #define DRM_MEM_CTXBITMAP 18
156 #define DRM_MEM_STUB 19
157 #define DRM_MEM_SGLISTS 20
158 #define DRM_MEM_CTXLIST 21
159 #define DRM_MEM_MM 22
160 #define DRM_MEM_HASHTAB 23
161 #define DRM_MEM_OBJECTS 24
162 #define DRM_MEM_FENCE 25
163 #define DRM_MEM_TTM 26
164 #define DRM_MEM_BUFOBJ 27
166 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
167 #define DRM_MAP_HASH_OFFSET 0x10000000
168 #define DRM_MAP_HASH_ORDER 12
169 #define DRM_OBJECT_HASH_ORDER 12
170 #define DRM_FILE_PAGE_OFFSET_START ((0xFFFFFFFFUL >> PAGE_SHIFT) + 1)
171 #define DRM_FILE_PAGE_OFFSET_SIZE ((0xFFFFFFFFUL >> PAGE_SHIFT) * 16)
173 * This should be small enough to allow the use of kmalloc for hash tables
174 * instead of vmalloc.
177 #define DRM_FILE_HASH_ORDER 8
178 #define DRM_MM_INIT_MAX_PAGES 256
182 #include "drm_compat.h"
184 /***********************************************************************/
185 /** \name Macros to make printk easier */
191 * \param fmt printf() like format string.
192 * \param arg arguments
194 #define DRM_ERROR(fmt, arg...) \
195 printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* " fmt , __FUNCTION__ , ##arg)
198 * Memory error output.
200 * \param area memory area where the error occurred.
201 * \param fmt printf() like format string.
202 * \param arg arguments
204 #define DRM_MEM_ERROR(area, fmt, arg...) \
205 printk(KERN_ERR "[" DRM_NAME ":%s:%s] *ERROR* " fmt , __FUNCTION__, \
206 drm_mem_stats[area].name , ##arg)
207 #define DRM_INFO(fmt, arg...) printk(KERN_INFO "[" DRM_NAME "] " fmt , ##arg)
212 * \param fmt printf() like format string.
213 * \param arg arguments
216 #define DRM_DEBUG(fmt, arg...) \
220 "[" DRM_NAME ":%s] " fmt , \
221 __FUNCTION__ , ##arg); \
224 #define DRM_DEBUG(fmt, arg...) do { } while (0)
227 #define DRM_PROC_LIMIT (PAGE_SIZE-80)
229 #define DRM_PROC_PRINT(fmt, arg...) \
230 len += sprintf(&buf[len], fmt , ##arg); \
231 if (len > DRM_PROC_LIMIT) { *eof = 1; return len - offset; }
233 #define DRM_PROC_PRINT_RET(ret, fmt, arg...) \
234 len += sprintf(&buf[len], fmt , ##arg); \
235 if (len > DRM_PROC_LIMIT) { ret; *eof = 1; return len - offset; }
239 /***********************************************************************/
240 /** \name Internal types and structures */
243 #define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x)
244 #define DRM_MIN(a,b) min(a,b)
245 #define DRM_MAX(a,b) max(a,b)
247 #define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
248 #define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
249 #define DRM_WAITCOUNT(dev,idx) DRM_BUFCOUNT(&dev->queuelist[idx]->waitlist)
251 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
253 * Get the private SAREA mapping.
255 * \param _dev DRM device.
256 * \param _ctx context number.
257 * \param _map output mapping.
259 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
260 (_map) = (_dev)->context_sareas[_ctx]; \
264 * Test that the hardware lock is held by the caller, returning otherwise.
266 * \param dev DRM device.
267 * \param file_priv DRM file private pointer of the caller.
269 #define LOCK_TEST_WITH_RETURN( dev, file_priv ) \
271 if ( !_DRM_LOCK_IS_HELD( file_priv->master->lock.hw_lock->lock ) || \
272 file_priv->master->lock.file_priv != file_priv ) { \
273 DRM_ERROR( "%s called without lock held, held %d owner %p %p\n",\
274 __FUNCTION__, _DRM_LOCK_IS_HELD( file_priv->master->lock.hw_lock->lock ),\
275 file_priv->master->lock.file_priv, file_priv ); \
281 * Copy and IOCTL return string to user space
283 #define DRM_COPY( name, value ) \
284 len = strlen( value ); \
285 if ( len > name##_len ) len = name##_len; \
286 name##_len = strlen( value ); \
287 if ( len && name ) { \
288 if ( copy_to_user( name, value, len ) ) \
293 * Ioctl function type.
295 * \param dev DRM device structure
296 * \param data pointer to kernel-space stored data, copied in and out according
297 * to ioctl description.
298 * \param file_priv DRM file private pointer.
300 typedef int drm_ioctl_t(struct drm_device *dev, void *data,
301 struct drm_file *file_priv);
303 typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
307 #define DRM_MASTER 0x2
308 #define DRM_ROOT_ONLY 0x4
309 #define DRM_CONTROL_ALLOW 0x8 // allow ioctl to operate on control node
311 struct drm_ioctl_desc {
317 * Creates a driver or general drm_ioctl_desc array entry for the given
318 * ioctl, for use by drm_ioctl().
320 #define DRM_IOCTL_DEF(ioctl, func, flags) \
321 [DRM_IOCTL_NR(ioctl)] = {ioctl, func, flags}
323 struct drm_magic_entry {
324 struct list_head head;
325 struct drm_hash_item hash_item;
326 struct drm_file *priv;
329 struct drm_vma_entry {
330 struct list_head head;
331 struct vm_area_struct *vma;
339 int idx; /**< Index into master buflist */
340 int total; /**< Buffer size */
341 int order; /**< log-base-2(total) */
342 int used; /**< Amount of buffer in use (for DMA) */
343 unsigned long offset; /**< Byte offset (used internally) */
344 void *address; /**< Address of buffer */
345 unsigned long bus_address; /**< Bus address of buffer */
346 struct drm_buf *next; /**< Kernel-only: used for free list */
347 __volatile__ int waiting; /**< On kernel DMA queue */
348 __volatile__ int pending; /**< On hardware DMA queue */
349 wait_queue_head_t dma_wait; /**< Processes waiting */
350 struct drm_file *file_priv; /**< Private of holding file descr */
351 int context; /**< Kernel queue for this buffer */
352 int while_locked; /**< Dispatch this buffer while locked */
360 } list; /**< Which list we're on */
362 int dev_priv_size; /**< Size of buffer private storage */
363 void *dev_private; /**< Per-buffer private storage */
366 /** bufs is one longer than it has to be */
367 struct drm_waitlist {
368 int count; /**< Number of possible buffers */
369 struct drm_buf **bufs; /**< List of pointers to buffers */
370 struct drm_buf **rp; /**< Read pointer */
371 struct drm_buf **wp; /**< Write pointer */
372 struct drm_buf **end; /**< End pointer */
373 spinlock_t read_lock;
374 spinlock_t write_lock;
377 struct drm_freelist {
378 int initialized; /**< Freelist in use */
379 atomic_t count; /**< Number of free buffers */
380 struct drm_buf *next; /**< End pointer */
382 wait_queue_head_t waiting; /**< Processes waiting on free bufs */
383 int low_mark; /**< Low water mark */
384 int high_mark; /**< High water mark */
385 atomic_t wfh; /**< If waiting for high mark */
389 typedef struct drm_dma_handle {
396 * Buffer entry. There is one of this for each buffer size order.
398 struct drm_buf_entry {
399 int buf_size; /**< size */
400 int buf_count; /**< number of buffers */
401 struct drm_buf *buflist; /**< buffer list */
404 struct drm_dma_handle **seglist;
405 struct drm_freelist freelist;
408 /** File private data */
414 unsigned long ioctl_count;
415 struct list_head lhead;
416 struct drm_minor *minor;
417 unsigned long lock_count;
419 /** Mapping of mm object handles to object pointers. */
420 struct idr object_idr;
421 /** Lock for synchronization of access to object_idr. */
422 spinlock_t table_lock;
427 int is_master; /* this file private is a master for a minor */
428 struct drm_master *master; /* master this node is currently associated with
429 N.B. not always minor->master */
430 struct list_head fbs;
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 */
443 atomic_t total_queued; /**< Total queued statistic */
444 atomic_t total_flushed; /**< Total flushes statistic */
445 atomic_t total_locks; /**< Total locks statistics */
447 enum drm_ctx_flags flags; /**< Context preserving and 2D-only */
448 struct drm_waitlist waitlist; /**< Pending buffers */
449 wait_queue_head_t flush_queue; /**< Processes waiting until flush */
455 struct drm_lock_data {
456 struct drm_hw_lock *hw_lock; /**< Hardware lock */
457 /** Private of lock holder's file (NULL=kernel) */
458 struct drm_file *file_priv;
459 wait_queue_head_t lock_queue; /**< Queue of blocked processes */
460 unsigned long lock_time; /**< Time of last lock in jiffies */
462 uint32_t kernel_waiters;
463 uint32_t user_waiters;
466 * Boolean signaling that the lock is held on behalf of the
467 * file_priv client by the kernel in an ioctl handler.
475 struct drm_device_dma {
477 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */
478 int buf_count; /**< total number of buffers */
479 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */
481 int page_count; /**< number of pages */
482 unsigned long *pagelist; /**< page list */
483 unsigned long byte_count;
485 _DRM_DMA_USE_AGP = 0x01,
486 _DRM_DMA_USE_SG = 0x02,
487 _DRM_DMA_USE_FB = 0x04,
488 _DRM_DMA_USE_PCI_RO = 0x08
494 * AGP memory entry. Stored as a doubly linked list.
497 unsigned long handle; /**< handle */
499 unsigned long bound; /**< address */
501 struct list_head head;
507 * \sa drm_agp_init() and drm_device::agp.
509 struct drm_agp_head {
510 DRM_AGP_KERN agp_info; /**< AGP device information */
511 struct list_head memory;
512 unsigned long mode; /**< AGP mode */
513 #if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,11)
514 struct agp_bridge_data *bridge;
516 int enabled; /**< whether the AGP bus as been enabled */
517 int acquired; /**< whether the AGP device has been acquired */
520 int cant_use_aperture;
521 unsigned long page_mask;
525 * Scatter-gather memory.
528 unsigned long handle;
531 struct page **pagelist;
537 struct drm_hw_lock *lock;
542 * Generic memory manager structs
545 struct drm_memrange_node {
546 struct list_head fl_entry;
547 struct list_head ml_entry;
551 struct drm_memrange *mm;
555 struct drm_memrange {
556 struct list_head fl_entry;
557 struct list_head ml_entry;
564 struct drm_map_list {
565 struct list_head head; /**< list head */
566 struct drm_hash_item hash;
567 struct drm_map *map; /**< mapping */
569 struct drm_master *master; /** if this map is associated with a specific
571 struct drm_memrange_node *file_offset_node;
574 typedef struct drm_map drm_local_map_t;
577 * Context handle list
579 struct drm_ctx_list {
580 struct list_head head; /**< list head */
581 drm_context_t handle; /**< context handle */
582 struct drm_file *tag; /**< associated fd private data */
586 struct list_head head;
587 unsigned int sequence;
589 struct task_struct *task;
592 struct drm_hotplug_sig {
593 struct list_head head;
594 unsigned int counter;
596 struct task_struct *task;
599 /* location of GART table */
600 #define DRM_ATI_GART_MAIN 1
601 #define DRM_ATI_GART_FB 2
603 #define DRM_ATI_GART_PCI 1
604 #define DRM_ATI_GART_PCIE 2
605 #define DRM_ATI_GART_IGP 3
607 struct drm_ati_pcigart_info {
608 int gart_table_location;
612 dma_addr_t table_mask;
613 dma_addr_t member_mask;
614 struct drm_dma_handle *table_handle;
615 drm_local_map_t mapping;
620 * This structure defines the drm_mm memory object, which will be used by the
621 * DRM for its buffer objects.
623 struct drm_gem_object {
624 /** Reference count of this object */
625 struct kref refcount;
627 /** Handle count of this object. Each handle also holds a reference */
628 struct kref handlecount;
630 /** Related drm device */
631 struct drm_device *dev;
633 /** File representing the shmem storage */
637 * Size of the object, in bytes. Immutable over the object's
643 * Global name for this object, starts at 1. 0 means unnamed.
644 * Access is covered by the object_name_lock in the related drm_device
649 * Memory domains. These monitor which caches contain read/write data
650 * related to the object. When transitioning from one set of domains
651 * to another, the driver is called to ensure that caches are suitably
652 * flushed and invalidated
654 uint32_t read_domains;
655 uint32_t write_domain;
658 * While validating an exec operation, the
659 * new read/write domain values are computed here.
660 * They will be transferred to the above values
661 * at the point that any cache flushing occurs
663 uint32_t pending_read_domains;
664 uint32_t pending_write_domain;
666 void *driver_private;
669 #include "drm_objects.h"
670 #include "drm_crtc.h"
672 /* per-master structure */
675 struct list_head head; /**< each minor contains a list of masters */
676 struct drm_minor *minor; /**< link back to minor we are a master for */
678 char *unique; /**< Unique identifier: e.g., busid */
679 int unique_len; /**< Length of unique field */
681 int blocked; /**< Blocked due to VC switch? */
683 /** \name Authentication */
685 struct drm_open_hash magiclist;
686 struct list_head magicfree;
689 struct drm_lock_data lock; /**< Information on hardware lock */
691 void *driver_priv; /**< Private structure for driver to use */
695 * DRM driver structure. This structure represent the common code for
696 * a family of cards. There will one drm_device for each card present
701 int (*load) (struct drm_device *, unsigned long flags);
702 int (*firstopen) (struct drm_device *);
703 int (*open) (struct drm_device *, struct drm_file *);
704 void (*preclose) (struct drm_device *, struct drm_file *file_priv);
705 void (*postclose) (struct drm_device *, struct drm_file *);
706 void (*lastclose) (struct drm_device *);
707 int (*unload) (struct drm_device *);
708 int (*suspend) (struct drm_device *, pm_message_t state);
709 int (*resume) (struct drm_device *);
710 int (*dma_ioctl) (struct drm_device *dev, void *data, struct drm_file *file_priv);
711 void (*dma_ready) (struct drm_device *);
712 int (*dma_quiescent) (struct drm_device *);
713 int (*context_ctor) (struct drm_device *dev, int context);
714 int (*context_dtor) (struct drm_device *dev, int context);
715 int (*kernel_context_switch) (struct drm_device *dev, int old,
717 void (*kernel_context_switch_unlock) (struct drm_device * dev);
719 * get_vblank_counter - get raw hardware vblank counter
721 * @crtc: counter to fetch
723 * Driver callback for fetching a raw hardware vblank counter
724 * for @crtc. If a device doesn't have a hardware counter, the
725 * driver can simply return the value of drm_vblank_count and
726 * make the enable_vblank() and disable_vblank() hooks into no-ops,
727 * leaving interrupts enabled at all times.
729 * Wraparound handling and loss of events due to modesetting is dealt
730 * with in the DRM core code.
733 * Raw vblank counter value.
735 u32 (*get_vblank_counter) (struct drm_device *dev, int crtc);
738 * enable_vblank - enable vblank interrupt events
740 * @crtc: which irq to enable
742 * Enable vblank interrupts for @crtc. If the device doesn't have
743 * a hardware vblank counter, this routine should be a no-op, since
744 * interrupts will have to stay on to keep the count accurate.
747 * Zero on success, appropriate errno if the given @crtc's vblank
748 * interrupt cannot be enabled.
750 int (*enable_vblank) (struct drm_device *dev, int crtc);
753 * disable_vblank - disable vblank interrupt events
755 * @crtc: which irq to enable
757 * Disable vblank interrupts for @crtc. If the device doesn't have
758 * a hardware vblank counter, this routine should be a no-op, since
759 * interrupts will have to stay on to keep the count accurate.
761 void (*disable_vblank) (struct drm_device *dev, int crtc);
762 int (*dri_library_name) (struct drm_device *dev, char * buf);
765 * Called by \c drm_device_is_agp. Typically used to determine if a
766 * card is really attached to AGP or not.
768 * \param dev DRM device handle
771 * One of three values is returned depending on whether or not the
772 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
773 * (return of 1), or may or may not be AGP (return of 2).
775 int (*device_is_agp) (struct drm_device *dev);
777 /* these have to be filled in */
778 irqreturn_t(*irq_handler) (DRM_IRQ_ARGS);
779 void (*irq_preinstall) (struct drm_device *dev);
780 int (*irq_postinstall) (struct drm_device *dev);
781 void (*irq_uninstall) (struct drm_device *dev);
782 void (*reclaim_buffers) (struct drm_device *dev,
783 struct drm_file *file_priv);
784 void (*reclaim_buffers_locked) (struct drm_device *dev,
785 struct drm_file *file_priv);
786 void (*reclaim_buffers_idlelocked) (struct drm_device *dev,
787 struct drm_file *file_priv);
788 unsigned long (*get_map_ofs) (struct drm_map *map);
789 unsigned long (*get_reg_ofs) (struct drm_device *dev);
790 void (*set_version) (struct drm_device *dev,
791 struct drm_set_version *sv);
793 /* Master routines */
794 int (*master_create)(struct drm_device *dev, struct drm_master *master);
795 void (*master_destroy)(struct drm_device *dev, struct drm_master *master);
797 int (*proc_init)(struct drm_minor *minor);
798 void (*proc_cleanup)(struct drm_minor *minor);
801 * Driver-specific constructor for drm_gem_objects, to set up
802 * obj->driver_private.
804 * Returns 0 on success.
806 int (*gem_init_object) (struct drm_gem_object *obj);
807 void (*gem_free_object) (struct drm_gem_object *obj);
809 struct drm_fence_driver *fence_driver;
810 struct drm_bo_driver *bo_driver;
822 struct drm_ioctl_desc *ioctls;
824 struct file_operations fops;
825 struct pci_driver pci_driver;
828 #define DRM_MINOR_UNASSIGNED 0
829 #define DRM_MINOR_LEGACY 1
830 #define DRM_MINOR_CONTROL 2
831 #define DRM_MINOR_RENDER 3
834 * DRM minor structure. This structure represents a drm minor number.
837 int index; /**< Minor device number */
838 int type; /**< Control or render */
839 dev_t device; /**< Device number for mknod */
840 struct device kdev; /**< Linux device */
841 struct drm_device *dev;
842 /* for render nodes */
843 struct proc_dir_entry *dev_root; /**< proc directory entry */
844 struct class_device *dev_class;
846 /* for control nodes - a pointer to the current master for this control node */
847 struct drm_master *master; /* currently active master for this node */
848 struct list_head master_list;
850 struct drm_mode_group mode_group;
855 * DRM device structure. This structure represent a complete card that
856 * may contain multiple heads.
859 char *devname; /**< For /proc/interrupts */
860 int if_version; /**< Highest interface version set */
864 spinlock_t count_lock; /**< For inuse, drm_device::open_count, drm_device::buf_use */
865 struct mutex struct_mutex; /**< For others */
868 /** \name Usage Counters */
870 int open_count; /**< Outstanding files open */
871 atomic_t ioctl_count; /**< Outstanding IOCTLs pending */
872 atomic_t vma_count; /**< Outstanding vma areas open */
873 int buf_use; /**< Buffers in use -- cannot alloc */
874 atomic_t buf_alloc; /**< Buffer allocation in progress */
877 /** \name Performance counters */
879 unsigned long counters;
880 enum drm_stat_type types[15];
885 /** \name Memory management */
887 struct list_head maplist; /**< Linked list of regions */
888 int map_count; /**< Number of mappable regions */
889 struct drm_open_hash map_hash; /**< User token hash table for maps */
890 struct drm_memrange offset_manager; /**< User token manager */
891 struct drm_open_hash object_hash; /**< User token hash table for objects */
892 struct address_space *dev_mapping; /**< For unmap_mapping_range() */
893 struct page *ttm_dummy_page;
895 /** \name Context handle management */
897 struct list_head ctxlist; /**< Linked list of context handles */
898 int ctx_count; /**< Number of context handles */
899 struct mutex ctxlist_mutex; /**< For ctxlist */
903 struct list_head vmalist; /**< List of vmas (for debugging) */
905 struct list_head filelist;
909 /** \name DMA queues (contexts) */
911 int queue_count; /**< Number of active DMA queues */
912 int queue_reserved; /**< Number of reserved DMA queues */
913 int queue_slots; /**< Actual length of queuelist */
914 struct drm_queue **queuelist; /**< Vector of pointers to DMA queues */
915 struct drm_device_dma *dma; /**< Optional pointer for DMA support */
919 /** \name Context support */
921 int irq; /**< Interrupt used by board */
922 int irq_enabled; /**< True if irq handler is enabled */
923 __volatile__ long context_flag; /**< Context swapping flag */
924 __volatile__ long interrupt_flag; /**< Interruption handler flag */
925 __volatile__ long dma_flag; /**< DMA dispatch flag */
926 struct timer_list timer; /**< Timer for delaying ctx switch */
927 wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */
928 int last_checked; /**< Last context checked for DMA */
929 int last_context; /**< Last current context */
930 unsigned long last_switch; /**< jiffies at last context switch */
933 struct work_struct work;
935 /** \name HOTPLUG IRQ support */
937 wait_queue_head_t hotplug_queue; /**< HOTPLUG wait queue */
938 spinlock_t hotplug_lock;
939 struct list_head *hotplug_sigs; /**< signal list to send on HOTPLUG */
940 atomic_t hotplug_signal_pending; /* number of signals pending on all crtcs*/
944 /** \name VBLANK IRQ support */
947 wait_queue_head_t *vbl_queue; /**< VBLANK wait queue */
948 atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */
950 struct list_head *vbl_sigs; /**< signal list to send on VBLANK */
951 atomic_t vbl_signal_pending; /* number of signals pending on all crtcs*/
952 atomic_t *vblank_refcount; /* number of users of vblank interrupts per crtc */
953 u32 *last_vblank; /* protected by dev->vbl_lock, used */
954 /* for wraparound handling */
955 u32 *vblank_offset; /* used to track how many vblanks */
956 int *vblank_enabled; /* so we don't call enable more than
958 u32 *vblank_premodeset; /* were lost during modeset */
959 struct timer_list vblank_disable_timer;
961 unsigned long max_vblank_count; /**< size of vblank counter register */
962 spinlock_t tasklet_lock; /**< For drm_locked_tasklet */
963 void (*locked_tasklet_func)(struct drm_device *dev);
969 struct fasync_struct *buf_async;/**< Processes waiting for SIGIO */
970 wait_queue_head_t buf_readers; /**< Processes waiting to read */
971 wait_queue_head_t buf_writers; /**< Processes waiting to ctx switch */
973 struct drm_agp_head *agp; /**< AGP data */
975 struct pci_dev *pdev; /**< PCI device structure */
976 int pci_vendor; /**< PCI vendor id */
977 int pci_device; /**< PCI device id */
979 struct pci_controller *hose;
981 int num_crtcs; /**< Number of CRTCs on this device */
982 struct drm_sg_mem *sg; /**< Scatter gather memory */
983 void *dev_private; /**< device private data */
984 struct drm_sigdata sigdata; /**< For block_all_signals */
987 struct drm_driver *driver;
988 drm_local_map_t *agp_buffer_map;
989 unsigned int agp_buffer_token;
991 /* minor number for control node */
992 struct drm_minor *control;
993 struct drm_minor *primary; /**< render type primary screen head */
995 struct drm_fence_manager fm;
996 struct drm_buffer_manager bm;
998 /** \name Drawable information */
1000 spinlock_t drw_lock;
1004 /* DRM mode setting */
1005 struct drm_mode_config mode_config;
1007 /** \name GEM information */
1009 spinlock_t object_name_lock;
1010 struct idr object_name_idr;
1011 atomic_t object_count;
1012 atomic_t object_memory;
1014 atomic_t pin_memory;
1016 atomic_t gtt_memory;
1018 uint32_t invalidate_domains; /* domains pending invalidation */
1019 uint32_t flush_domains; /* domains pending flush */
1024 struct drm_agp_ttm_backend {
1025 struct drm_ttm_backend backend;
1027 struct agp_bridge_data *bridge;
1031 struct ati_pcigart_ttm_backend {
1032 struct drm_ttm_backend backend;
1034 void (*gart_flush_fn)(struct drm_device *dev);
1035 struct drm_ati_pcigart_info *gart_info;
1036 unsigned long offset;
1037 struct page **pages;
1040 struct drm_device *dev;
1042 extern struct drm_ttm_backend *ati_pcigart_init_ttm(struct drm_device *dev, struct drm_ati_pcigart_info *info, void (*gart_flush_fn)(struct drm_device *dev));
1044 static __inline__ int drm_core_check_feature(struct drm_device *dev,
1047 return ((dev->driver->driver_features & feature) ? 1 : 0);
1051 #define drm_get_pci_domain(dev) dev->hose->index
1053 #define drm_get_pci_domain(dev) 0
1057 static inline int drm_core_has_AGP(struct drm_device *dev)
1059 return drm_core_check_feature(dev, DRIVER_USE_AGP);
1062 #define drm_core_has_AGP(dev) (0)
1066 static inline int drm_core_has_MTRR(struct drm_device *dev)
1068 return drm_core_check_feature(dev, DRIVER_USE_MTRR);
1071 #define DRM_MTRR_WC MTRR_TYPE_WRCOMB
1073 static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
1076 return mtrr_add(offset, size, flags, 1);
1079 static inline int drm_mtrr_del(int handle, unsigned long offset,
1080 unsigned long size, unsigned int flags)
1082 return mtrr_del(handle, offset, size);
1086 static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
1092 static inline int drm_mtrr_del(int handle, unsigned long offset,
1093 unsigned long size, unsigned int flags)
1098 #define drm_core_has_MTRR(dev) (0)
1099 #define DRM_MTRR_WC 0
1103 /******************************************************************/
1104 /** \name Internal function definitions */
1107 /* Driver support (drm_drv.h) */
1108 extern int drm_fb_loaded;
1109 extern int drm_init(struct drm_driver *driver,
1110 struct pci_device_id *pciidlist);
1111 extern void drm_exit(struct drm_driver *driver);
1112 extern void drm_cleanup_pci(struct pci_dev *pdev);
1113 extern int drm_ioctl(struct inode *inode, struct file *filp,
1114 unsigned int cmd, unsigned long arg);
1115 extern long drm_unlocked_ioctl(struct file *filp,
1116 unsigned int cmd, unsigned long arg);
1117 extern long drm_compat_ioctl(struct file *filp,
1118 unsigned int cmd, unsigned long arg);
1120 extern int drm_lastclose(struct drm_device *dev);
1122 /* Device support (drm_fops.h) */
1123 extern int drm_open(struct inode *inode, struct file *filp);
1124 extern int drm_stub_open(struct inode *inode, struct file *filp);
1125 extern int drm_fasync(int fd, struct file *filp, int on);
1126 extern int drm_release(struct inode *inode, struct file *filp);
1127 unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait);
1129 /* Mapping support (drm_vm.h) */
1130 extern int drm_mmap(struct file *filp, struct vm_area_struct *vma);
1131 extern unsigned long drm_core_get_map_ofs(struct drm_map * map);
1132 extern unsigned long drm_core_get_reg_ofs(struct drm_device *dev);
1133 extern pgprot_t drm_io_prot(uint32_t map_type, struct vm_area_struct *vma);
1135 /* Memory management support (drm_memory.h) */
1136 #include "drm_memory.h"
1137 extern void drm_mem_init(void);
1138 extern int drm_mem_info(char *buf, char **start, off_t offset,
1139 int request, int *eof, void *data);
1140 extern void *drm_calloc(size_t nmemb, size_t size, int area);
1141 extern void *drm_realloc(void *oldpt, size_t oldsize, size_t size, int area);
1142 extern unsigned long drm_alloc_pages(int order, int area);
1143 extern void drm_free_pages(unsigned long address, int order, int area);
1144 extern DRM_AGP_MEM *drm_alloc_agp(struct drm_device *dev, int pages, u32 type);
1145 extern int drm_free_agp(DRM_AGP_MEM * handle, int pages);
1146 extern int drm_bind_agp(DRM_AGP_MEM * handle, unsigned int start);
1147 extern DRM_AGP_MEM *drm_agp_bind_pages(struct drm_device *dev,
1148 struct page **pages,
1149 unsigned long num_pages,
1150 uint32_t gtt_offset);
1151 extern int drm_unbind_agp(DRM_AGP_MEM * handle);
1153 extern void drm_free_memctl(size_t size);
1154 extern int drm_alloc_memctl(size_t size);
1155 extern void drm_query_memctl(uint64_t *cur_used,
1156 uint64_t *emer_used,
1157 uint64_t *low_threshold,
1158 uint64_t *high_threshold,
1159 uint64_t *emer_threshold);
1160 extern void drm_init_memctl(size_t low_threshold,
1161 size_t high_threshold,
1164 /* Misc. IOCTL support (drm_ioctl.h) */
1165 extern int drm_irq_by_busid(struct drm_device *dev, void *data,
1166 struct drm_file *file_priv);
1167 extern int drm_getunique(struct drm_device *dev, void *data,
1168 struct drm_file *file_priv);
1169 extern int drm_setunique(struct drm_device *dev, void *data,
1170 struct drm_file *file_priv);
1171 extern int drm_getmap(struct drm_device *dev, void *data,
1172 struct drm_file *file_priv);
1173 extern int drm_getclient(struct drm_device *dev, void *data,
1174 struct drm_file *file_priv);
1175 extern int drm_getstats(struct drm_device *dev, void *data,
1176 struct drm_file *file_priv);
1177 extern int drm_setversion(struct drm_device *dev, void *data,
1178 struct drm_file *file_priv);
1179 extern int drm_noop(struct drm_device *dev, void *data,
1180 struct drm_file *file_priv);
1182 /* Context IOCTL support (drm_context.h) */
1183 extern int drm_resctx(struct drm_device *dev, void *data,
1184 struct drm_file *file_priv);
1185 extern int drm_addctx(struct drm_device *dev, void *data,
1186 struct drm_file *file_priv);
1187 extern int drm_modctx(struct drm_device *dev, void *data,
1188 struct drm_file *file_priv);
1189 extern int drm_getctx(struct drm_device *dev, void *data,
1190 struct drm_file *file_priv);
1191 extern int drm_switchctx(struct drm_device *dev, void *data,
1192 struct drm_file *file_priv);
1193 extern int drm_newctx(struct drm_device *dev, void *data,
1194 struct drm_file *file_priv);
1195 extern int drm_rmctx(struct drm_device *dev, void *data,
1196 struct drm_file *file_priv);
1198 extern int drm_ctxbitmap_init(struct drm_device *dev);
1199 extern void drm_ctxbitmap_cleanup(struct drm_device *dev);
1200 extern void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
1202 extern int drm_setsareactx(struct drm_device *dev, void *data,
1203 struct drm_file *file_priv);
1204 extern int drm_getsareactx(struct drm_device *dev, void *data,
1205 struct drm_file *file_priv);
1207 /* Drawable IOCTL support (drm_drawable.h) */
1208 extern int drm_adddraw(struct drm_device *dev, void *data,
1209 struct drm_file *file_priv);
1210 extern int drm_rmdraw(struct drm_device *dev, void *data,
1211 struct drm_file *file_priv);
1212 extern int drm_update_drawable_info(struct drm_device *dev, void *data,
1213 struct drm_file *file_priv);
1214 extern struct drm_drawable_info *drm_get_drawable_info(struct drm_device *dev,
1216 extern void drm_drawable_free_all(struct drm_device *dev);
1218 /* Authentication IOCTL support (drm_auth.h) */
1219 extern int drm_getmagic(struct drm_device *dev, void *data,
1220 struct drm_file *file_priv);
1221 extern int drm_authmagic(struct drm_device *dev, void *data,
1222 struct drm_file *file_priv);
1224 /* Locking IOCTL support (drm_lock.h) */
1225 extern int drm_lock(struct drm_device *dev, void *data,
1226 struct drm_file *file_priv);
1227 extern int drm_unlock(struct drm_device *dev, void *data,
1228 struct drm_file *file_priv);
1229 extern int drm_lock_take(struct drm_lock_data *lock_data, unsigned int context);
1230 extern int drm_lock_free(struct drm_lock_data *lock_data, unsigned int context);
1231 extern void drm_idlelock_take(struct drm_lock_data *lock_data);
1232 extern void drm_idlelock_release(struct drm_lock_data *lock_data);
1235 * These are exported to drivers so that they can implement fencing using
1236 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
1239 extern int drm_i_have_hw_lock(struct drm_device *dev,
1240 struct drm_file *file_priv);
1242 /* Buffer management support (drm_bufs.h) */
1243 extern int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc * request);
1244 extern int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc * request);
1245 extern int drm_addbufs_fb (struct drm_device *dev, struct drm_buf_desc * request);
1246 extern int drm_addmap(struct drm_device *dev, unsigned int offset,
1247 unsigned int size, enum drm_map_type type,
1248 enum drm_map_flags flags, drm_local_map_t ** map_ptr);
1249 extern int drm_addmap_ioctl(struct drm_device *dev, void *data,
1250 struct drm_file *file_priv);
1251 extern int drm_rmmap(struct drm_device *dev, drm_local_map_t *map);
1252 extern int drm_rmmap_locked(struct drm_device *dev, drm_local_map_t *map);
1253 extern int drm_rmmap_ioctl(struct drm_device *dev, void *data,
1254 struct drm_file *file_priv);
1255 extern int drm_addbufs(struct drm_device *dev, void *data,
1256 struct drm_file *file_priv);
1257 extern int drm_infobufs(struct drm_device *dev, void *data,
1258 struct drm_file *file_priv);
1259 extern int drm_markbufs(struct drm_device *dev, void *data,
1260 struct drm_file *file_priv);
1261 extern int drm_freebufs(struct drm_device *dev, void *data,
1262 struct drm_file *file_priv);
1263 extern int drm_mapbufs(struct drm_device *dev, void *data,
1264 struct drm_file *file_priv);
1265 extern int drm_order(unsigned long size);
1266 extern unsigned long drm_get_resource_start(struct drm_device *dev,
1267 unsigned int resource);
1268 extern unsigned long drm_get_resource_len(struct drm_device *dev,
1269 unsigned int resource);
1270 extern struct drm_map_list *drm_find_matching_map(struct drm_device *dev,
1271 drm_local_map_t *map);
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_hotplug_init(struct drm_device *dev);
1292 extern int drm_wait_hotplug(struct drm_device *dev, void *data, struct drm_file *filp);
1293 extern int drm_vblank_init(struct drm_device *dev, int num_crtcs);
1294 extern int drm_wait_vblank(struct drm_device *dev, void *data, struct drm_file *filp);
1295 extern int drm_wait_hotplug(struct drm_device *dev, void *data, struct drm_file *filp);
1296 extern int drm_vblank_wait(struct drm_device * dev, unsigned int *vbl_seq);
1297 extern void drm_locked_tasklet(struct drm_device *dev, void(*func)(struct drm_device*));
1298 extern u32 drm_vblank_count(struct drm_device *dev, int crtc);
1299 extern void drm_update_vblank_count(struct drm_device *dev, int crtc);
1300 extern void drm_handle_vblank(struct drm_device *dev, int crtc);
1301 extern void drm_handle_hotplug(struct drm_device *dev);
1302 extern int drm_vblank_get(struct drm_device *dev, int crtc);
1303 extern void drm_vblank_put(struct drm_device *dev, int crtc);
1305 /* Modesetting support */
1306 extern int drm_modeset_ctl(struct drm_device *dev, void *data,
1307 struct drm_file *file_priv);
1309 /* AGP/GART support (drm_agpsupport.h) */
1310 extern struct drm_agp_head *drm_agp_init(struct drm_device *dev);
1311 extern int drm_agp_acquire(struct drm_device *dev);
1312 extern int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
1313 struct drm_file *file_priv);
1314 extern int drm_agp_release(struct drm_device *dev);
1315 extern int drm_agp_release_ioctl(struct drm_device *dev, void *data,
1316 struct drm_file *file_priv);
1317 extern int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode);
1318 extern int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
1319 struct drm_file *file_priv);
1320 extern int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info);
1321 extern int drm_agp_info_ioctl(struct drm_device *dev, void *data,
1322 struct drm_file *file_priv);
1323 extern int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request);
1324 extern int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
1325 struct drm_file *file_priv);
1326 extern int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request);
1327 extern int drm_agp_free_ioctl(struct drm_device *dev, void *data,
1328 struct drm_file *file_priv);
1329 extern int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request);
1330 extern int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
1331 struct drm_file *file_priv);
1332 extern int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
1333 extern int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
1334 struct drm_file *file_priv);
1335 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,11)
1336 extern DRM_AGP_MEM *drm_agp_allocate_memory(size_t pages, u32 type);
1338 extern DRM_AGP_MEM *drm_agp_allocate_memory(struct agp_bridge_data *bridge, size_t pages, u32 type);
1340 extern int drm_agp_free_memory(DRM_AGP_MEM * handle);
1341 extern int drm_agp_bind_memory(DRM_AGP_MEM * handle, off_t start);
1342 extern int drm_agp_unbind_memory(DRM_AGP_MEM * handle);
1343 extern struct drm_ttm_backend *drm_agp_init_ttm(struct drm_device *dev);
1344 extern void drm_agp_chipset_flush(struct drm_device *dev);
1345 /* Stub support (drm_stub.h) */
1346 extern int drm_setmaster_ioctl(struct drm_device *dev, void *data,
1347 struct drm_file *file_priv);
1348 extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
1349 struct drm_file *file_priv);
1350 extern struct drm_master *drm_get_master(struct drm_minor *minor);
1351 extern void drm_put_master(struct drm_master *master);
1352 extern int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
1353 struct drm_driver *driver);
1354 extern int drm_put_dev(struct drm_device *dev);
1355 extern int drm_put_minor(struct drm_device *dev, struct drm_minor **p);
1356 extern unsigned int drm_debug; /* 1 to enable debug output */
1358 extern struct class *drm_class;
1359 extern struct proc_dir_entry *drm_proc_root;
1361 extern struct idr drm_minors_idr;
1363 extern drm_local_map_t *drm_getsarea(struct drm_device *dev);
1365 /* Proc support (drm_proc.h) */
1366 int drm_proc_init(struct drm_minor *minor, int minor_id,
1367 struct proc_dir_entry *root);
1368 int drm_proc_cleanup(struct drm_minor *minor, struct proc_dir_entry *root);
1370 /* Scatter Gather Support (drm_scatter.h) */
1371 extern void drm_sg_cleanup(struct drm_sg_mem * entry);
1372 extern int drm_sg_alloc_ioctl(struct drm_device *dev, void *data,
1373 struct drm_file *file_priv);
1374 extern int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request);
1375 extern int drm_sg_free(struct drm_device *dev, void *data,
1376 struct drm_file *file_priv);
1378 /* ATI PCIGART support (ati_pcigart.h) */
1379 extern int drm_ati_pcigart_init(struct drm_device *dev, struct drm_ati_pcigart_info *gart_info);
1380 extern int drm_ati_pcigart_cleanup(struct drm_device *dev, struct drm_ati_pcigart_info *gart_info);
1381 extern int drm_ati_alloc_pcigart_table(struct drm_device *dev,
1382 struct drm_ati_pcigart_info *gart_info);
1384 extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
1385 size_t align, dma_addr_t maxaddr);
1386 extern void __drm_pci_free(struct drm_device *dev, drm_dma_handle_t *dmah);
1387 extern void drm_pci_free(struct drm_device *dev, drm_dma_handle_t *dmah);
1389 /* sysfs support (drm_sysfs.c) */
1390 struct drm_sysfs_class;
1391 extern struct class *drm_sysfs_create(struct module *owner, char *name);
1392 extern void drm_sysfs_destroy(void);
1393 extern int drm_sysfs_device_add(struct drm_minor *minor);
1394 extern void drm_sysfs_hotplug_event(struct drm_device *dev);
1395 extern void drm_sysfs_device_remove(struct drm_minor *minor);
1396 extern char *drm_get_connector_status_name(enum drm_connector_status status);
1397 extern int drm_sysfs_connector_add(struct drm_connector *connector);
1398 extern void drm_sysfs_connector_remove(struct drm_connector *connector);
1401 * Basic memory manager support (drm_memrange.c)
1404 extern struct drm_memrange_node *drm_memrange_get_block(struct drm_memrange_node * parent,
1406 unsigned alignment);
1407 extern void drm_memrange_put_block(struct drm_memrange_node *cur);
1408 extern struct drm_memrange_node *drm_memrange_search_free(const struct drm_memrange *mm,
1410 unsigned alignment, int best_match);
1411 extern int drm_memrange_init(struct drm_memrange *mm,
1412 unsigned long start, unsigned long size);
1413 extern void drm_memrange_takedown(struct drm_memrange *mm);
1414 extern int drm_memrange_clean(struct drm_memrange *mm);
1415 extern unsigned long drm_memrange_tail_space(struct drm_memrange *mm);
1416 extern int drm_memrange_remove_space_from_tail(struct drm_memrange *mm,
1417 unsigned long size);
1418 extern int drm_memrange_add_space_to_tail(struct drm_memrange *mm,
1419 unsigned long size);
1420 static inline struct drm_memrange *drm_get_mm(struct drm_memrange_node *block)
1425 /* Graphics Execution Manager library functions (drm_gem.c) */
1427 drm_gem_init (struct drm_device *dev);
1430 drm_gem_object_free (struct kref *kref);
1432 struct drm_gem_object *
1433 drm_gem_object_alloc(struct drm_device *dev, size_t size);
1436 drm_gem_object_handle_free (struct kref *kref);
1438 static inline void drm_gem_object_reference(struct drm_gem_object *obj)
1440 kref_get(&obj->refcount);
1443 static inline void drm_gem_object_unreference(struct drm_gem_object *obj)
1448 kref_put (&obj->refcount, drm_gem_object_free);
1452 drm_gem_handle_create(struct drm_file *file_priv,
1453 struct drm_gem_object *obj,
1456 static inline void drm_gem_object_handle_reference (struct drm_gem_object *obj)
1458 drm_gem_object_reference (obj);
1459 kref_get(&obj->handlecount);
1462 static inline void drm_gem_object_handle_unreference (struct drm_gem_object *obj)
1468 * Must bump handle count first as this may be the last
1469 * ref, in which case the object would disappear before we
1470 * checked for a name
1472 kref_put (&obj->handlecount, drm_gem_object_handle_free);
1473 drm_gem_object_unreference (obj);
1476 struct drm_gem_object *
1477 drm_gem_object_lookup(struct drm_device *dev, struct drm_file *filp,
1479 int drm_gem_close_ioctl(struct drm_device *dev, void *data,
1480 struct drm_file *file_priv);
1481 int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
1482 struct drm_file *file_priv);
1483 int drm_gem_open_ioctl(struct drm_device *dev, void *data,
1484 struct drm_file *file_priv);
1486 void drm_gem_open(struct drm_device *dev, struct drm_file *file_private);
1487 void drm_gem_release(struct drm_device *dev, struct drm_file *file_private);
1489 extern void drm_core_ioremap(struct drm_map *map, struct drm_device *dev);
1490 extern void drm_core_ioremapfree(struct drm_map *map, struct drm_device *dev);
1492 static __inline__ struct drm_map *drm_core_findmap(struct drm_device *dev,
1495 struct drm_map_list *_entry;
1496 list_for_each_entry(_entry, &dev->maplist, head)
1497 if (_entry->user_token == token)
1502 static __inline__ int drm_device_is_agp(struct drm_device *dev)
1504 if ( dev->driver->device_is_agp != NULL ) {
1505 int err = (*dev->driver->device_is_agp)(dev);
1512 return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP);
1515 static __inline__ int drm_device_is_pcie(struct drm_device *dev)
1517 return pci_find_capability(dev->pdev, PCI_CAP_ID_EXP);
1520 static __inline__ void drm_core_dropmap(struct drm_map *map)
1524 #ifndef DEBUG_MEMORY
1525 /** Wrapper around kmalloc() */
1526 static __inline__ void *drm_alloc(size_t size, int area)
1528 return kmalloc(size, GFP_KERNEL);
1531 /** Wrapper around kfree() */
1532 static __inline__ void drm_free(void *pt, size_t size, int area)
1537 extern void *drm_alloc(size_t size, int area);
1538 extern void drm_free(void *pt, size_t size, int area);
1542 * Accounting variants of standard calls.
1545 static inline void *drm_ctl_alloc(size_t size, int area)
1548 if (drm_alloc_memctl(size))
1550 ret = drm_alloc(size, area);
1552 drm_free_memctl(size);
1556 static inline void *drm_ctl_calloc(size_t nmemb, size_t size, int area)
1560 if (drm_alloc_memctl(nmemb*size))
1562 ret = drm_calloc(nmemb, size, area);
1564 drm_free_memctl(nmemb*size);
1568 static inline void drm_ctl_free(void *pt, size_t size, int area)
1570 drm_free(pt, size, area);
1571 drm_free_memctl(size);
1576 #endif /* __KERNEL__ */