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 * Copyright (c) 2009-2010, Code Aurora Forum.
13 * All rights reserved.
15 * Permission is hereby granted, free of charge, to any person obtaining a
16 * copy of this software and associated documentation files (the "Software"),
17 * to deal in the Software without restriction, including without limitation
18 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
19 * and/or sell copies of the Software, and to permit persons to whom the
20 * Software is furnished to do so, subject to the following conditions:
22 * The above copyright notice and this permission notice (including the next
23 * paragraph) shall be included in all copies or substantial portions of the
26 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
27 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
28 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
29 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
30 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
31 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
32 * OTHER DEALINGS IN THE SOFTWARE.
38 #if defined(_KERNEL) || defined(__KERNEL__)
40 #include <sys/param.h>
41 #include <sys/queue.h>
42 #include <sys/malloc.h>
43 #include <sys/kernel.h>
45 #include <sys/module.h>
46 #include <sys/systm.h>
47 #include <sys/device.h>
48 #include <sys/sglist.h>
53 #include <sys/spinlock.h>
54 #include <sys/spinlock2.h>
55 #include <sys/fcntl.h>
57 #include <sys/filio.h>
58 #include <sys/sysctl.h>
60 #include <sys/queue.h>
61 #include <sys/signalvar.h>
63 #include <linux/highmem.h>
65 #include <sys/taskqueue.h>
69 #include <vm/vm_extern.h>
70 #include <vm/vm_kern.h>
71 #include <vm/vm_map.h>
72 #include <vm/vm_object.h>
73 #include <vm/vm_page2.h>
74 #include <vm/vm_pager.h>
75 #include <vm/vm_param.h>
76 #include <machine/param.h>
77 #include <machine/pmap.h>
79 #include <machine/specialreg.h>
81 #include <machine/sysarch.h>
82 #include <sys/endian.h>
85 #include <sys/memrange.h>
86 #include <sys/agpio.h>
87 #include <sys/mutex.h>
89 MALLOC_DECLARE(M_DRM);
91 #include <uapi_drm/drm.h>
92 #include <uapi_drm/drm_sarea.h>
94 #include <linux/atomic.h>
95 #include <linux/bug.h>
96 #include <linux/dma-mapping.h>
97 #include <linux/capability.h>
98 #include <linux/err.h>
99 #include <linux/idr.h>
100 #include <linux/pci.h>
101 #include <linux/jiffies.h>
102 #include <linux/kernel.h>
103 #include <linux/fs.h>
104 #include <linux/kref.h>
105 #include <linux/list.h>
106 #include <linux/mm.h>
107 #include <linux/moduleparam.h>
108 #include <linux/mutex.h>
109 #include <linux/slab.h>
110 #include <linux/scatterlist.h>
111 #include <linux/timer.h>
113 #include <linux/seq_file.h>
114 #include <linux/types.h>
115 #include <linux/wait.h>
116 #include <linux/workqueue.h>
118 #include <asm/uaccess.h>
120 #include <drm/drm_global.h>
122 #include <drm/drm_vma_manager.h>
127 struct drm_gem_object;
132 #include <drm/drm_os_linux.h>
133 #include <drm/drm_hashtab.h>
134 #include <drm/drm_mm.h>
137 * 4 debug categories are defined:
139 * CORE: Used in the generic drm code: drm_ioctl.c, drm_mm.c, drm_memory.c, ...
140 * This is the category used by the DRM_DEBUG() macro.
142 * DRIVER: Used in the vendor specific part of the driver: i915, radeon, ...
143 * This is the category used by the DRM_DEBUG_DRIVER() macro.
145 * KMS: used in the modesetting code.
146 * This is the category used by the DRM_DEBUG_KMS() macro.
148 * PRIME: used in the prime code.
149 * This is the category used by the DRM_DEBUG_PRIME() macro.
151 * Enabling verbose debug messages is done through the drm.debug parameter,
152 * each category being enabled by a bit.
154 * drm.debug=0x1 will enable CORE messages
155 * drm.debug=0x2 will enable DRIVER messages
156 * drm.debug=0x3 will enable CORE and DRIVER messages
158 * drm.debug=0xf will enable all messages
160 * An interesting feature is that it's possible to enable verbose logging at
161 * run-time by echoing the debug value in its sysfs node:
162 * # echo 0xf > /sys/module/drm/parameters/debug
164 #define DRM_UT_CORE 0x01
165 #define DRM_UT_DRIVER 0x02
166 #define DRM_UT_KMS 0x04
167 #define DRM_UT_PRIME 0x08
169 void drm_ut_debug_printk(const char *function_name,
170 const char *format, ...);
172 void drm_err(const char *func, const char *format, ...);
174 /***********************************************************************/
175 /** \name DRM template customization defaults */
178 /* driver capabilities and requirements mask */
179 #define DRIVER_USE_AGP 0x1
180 #define DRIVER_REQUIRE_AGP 0x2
181 #define DRIVER_PCI_DMA 0x8
182 #define DRIVER_SG 0x10
183 #define DRIVER_HAVE_DMA 0x20
184 #define DRIVER_HAVE_IRQ 0x40
185 #define DRIVER_IRQ_SHARED 0x80
186 #define DRIVER_DMA_QUEUE 0x200
187 #define DRIVER_GEM 0x1000
188 #define DRIVER_MODESET 0x2000
189 #define DRIVER_PRIME 0x4000
190 #define DRIVER_RENDER 0x8000
192 /***********************************************************************/
193 /** \name Begin the DRM... */
196 #define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then
197 also include looping detection. */
199 #define DRM_MAGIC_HASH_ORDER 4 /**< Size of key hash table. Must be power of 2. */
203 /***********************************************************************/
204 /** \name Macros to make printk easier */
210 * \param fmt printf() like format string.
211 * \param arg arguments
213 #define DRM_ERROR(fmt, ...) \
214 kprintf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \
215 DRM_CURRENTPID, __func__ , ##__VA_ARGS__)
217 #define DRM_GEM_MAPPING_MASK (3ULL << 62)
218 #define DRM_GEM_MAPPING_KEY (2ULL << 62) /* Non-canonical address form */
219 #define DRM_GEM_MAX_IDX 0x3fffff
220 #define DRM_GEM_MAPPING_IDX(o) (((o) >> 40) & DRM_GEM_MAX_IDX)
221 #define DRM_GEM_MAPPING_OFF(i) (((uint64_t)(i)) << 40)
222 #define DRM_GEM_MAPPING_MAPOFF(o) \
223 ((o) & ~(DRM_GEM_MAPPING_OFF(DRM_GEM_MAX_IDX) | DRM_GEM_MAPPING_KEY))
225 SYSCTL_DECL(_hw_drm);
227 #define DRM_MAX(a,b) ((a)>(b)?(a):(b))
229 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
231 #define __OS_HAS_AGP 1
233 #define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP)
234 #define DRM_DEV_UID 0
235 #define DRM_DEV_GID 0
237 #define DRM_CURPROC curthread
238 #define DRM_STRUCTPROC struct thread
239 #define DRM_CURRENTPID (curproc != NULL ? curproc->p_pid : -1)
240 #define DRM_LOCK(dev) lockmgr(&(dev)->struct_mutex, LK_EXCLUSIVE)
241 #define DRM_UNLOCK(dev) lockmgr(&(dev)->struct_mutex, LK_RELEASE)
242 #define DRM_LOCK_SLEEP(dev, chan, flags, msg, timeout) \
243 (lksleep((chan), &(dev)->struct_mutex, (flags), (msg), (timeout)))
244 #if defined(INVARIANTS)
245 #define DRM_LOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->struct_mutex, curthread) != 0);
246 #define DRM_UNLOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->struct_mutex, curthread) == 0);
248 #define DRM_LOCK_ASSERT(d)
249 #define DRM_UNLOCK_ASSERT(d)
252 #define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS)
254 typedef void irqreturn_t;
255 #define IRQ_HANDLED /* nothing */
256 #define IRQ_NONE /* nothing */
263 #define DRM_AGP_MEM struct agp_memory_info
265 #define drm_get_device_from_kdev(_kdev) (_kdev->si_drv1)
267 #define DRM_AGP_FIND_DEVICE() agp_find_device()
268 #define DRM_MTRR_WC MDF_WRITECOMBINE
270 #define LOCK_TEST_WITH_RETURN(dev, file_priv) \
272 if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) || \
273 dev->lock.file_priv != file_priv) { \
274 DRM_ERROR("%s called without lock held\n", \
280 /* Returns -errno to shared code */
281 #define DRM_WAIT_ON( ret, queue, timeout, condition ) \
282 for ( ret = 0 ; !ret && !(condition) ; ) { \
284 lwkt_serialize_enter(&dev->irq_lock); \
285 if (!(condition)) { \
286 tsleep_interlock(&(queue), PCATCH); \
287 lwkt_serialize_exit(&dev->irq_lock); \
288 ret = -tsleep(&(queue), PCATCH | PINTERLOCKED, \
289 "drmwtq", (timeout)); \
291 lwkt_serialize_exit(&dev->irq_lock); \
296 int vm_phys_fictitious_reg_range(vm_paddr_t start, vm_paddr_t end,
297 vm_memattr_t memattr);
298 void vm_phys_fictitious_unreg_range(vm_paddr_t start, vm_paddr_t end);
299 vm_page_t vm_phys_fictitious_to_vm_page(vm_paddr_t pa);
301 /***********************************************************************/
302 /** \name Macros to make printk easier */
306 #define DRM_INFO(fmt, ...) kprintf("info: [" DRM_NAME "] " fmt , ##__VA_ARGS__)
308 #define DRM_INFO_ONCE(fmt, ...) \
309 printk_once(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__)
311 #define DRM_DEBUGBITS_DEBUG 0x1
312 #define DRM_DEBUGBITS_KMS 0x2
313 #define DRM_DEBUGBITS_FAILED_IOCTL 0x4
314 #define DRM_DEBUGBITS_VERBOSE 0x8
316 #define DRM_DEBUG(fmt, ...) do { \
317 if ((drm_debug & DRM_DEBUGBITS_DEBUG) != 0) \
318 kprintf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \
319 __func__ , ##__VA_ARGS__); \
322 #define DRM_DEBUG_VERBOSE(fmt, ...) do { \
323 if ((drm_debug & DRM_DEBUGBITS_VERBOSE) != 0) \
324 kprintf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \
325 __func__ , ##__VA_ARGS__); \
328 #define DRM_DEBUG_KMS(fmt, ...) do { \
329 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \
330 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\
331 __func__ , ##__VA_ARGS__); \
334 #define DRM_DEBUG_DRIVER(fmt, ...) do { \
335 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \
336 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\
337 __func__ , ##__VA_ARGS__); \
340 #define DRM_LOG_KMS(fmt, ...) do { \
341 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID, \
342 __func__ , ##__VA_ARGS__); \
345 #define dev_dbg(dev, fmt, ...) do { \
346 if ((drm_debug& DRM_DEBUGBITS_KMS) != 0) { \
347 device_printf((dev), "debug: " fmt, ## __VA_ARGS__); \
351 typedef struct drm_pci_id_list
359 struct drm_msi_blacklist_entry
366 * Ioctl function type.
368 * \param inode device inode.
369 * \param file_priv DRM file private pointer.
370 * \param cmd command.
371 * \param arg argument.
373 typedef int drm_ioctl_t(struct drm_device *dev, void *data,
374 struct drm_file *file_priv);
376 typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
379 #define DRM_IOCTL_NR(n) ((n) & 0xff)
382 #define DRM_MASTER 0x2
383 #define DRM_ROOT_ONLY 0x4
384 #define DRM_CONTROL_ALLOW 0x8
385 #define DRM_UNLOCKED 0x10
386 #define DRM_RENDER_ALLOW 0x20
388 struct drm_ioctl_desc {
392 unsigned int cmd_drv;
397 * Creates a driver or general drm_ioctl_desc array entry for the given
398 * ioctl, for use by drm_ioctl().
400 #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \
401 [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl}
403 typedef struct drm_magic_entry {
404 struct list_head head;
405 struct drm_hash_item hash_item;
406 struct drm_file *priv;
407 struct drm_magic_entry *next;
410 typedef struct drm_magic_head {
411 struct drm_magic_entry *head;
412 struct drm_magic_entry *tail;
415 typedef struct drm_buf {
416 int idx; /**< Index into master buflist */
417 int total; /**< Buffer size */
418 int order; /**< log-base-2(total) */
419 int used; /**< Amount of buffer in use (for DMA) */
420 unsigned long offset; /**< Byte offset (used internally) */
421 void *address; /**< Address of buffer */
422 unsigned long bus_address; /**< Bus address of buffer */
423 struct drm_buf *next; /**< Kernel-only: used for free list */
424 __volatile__ int waiting; /**< On kernel DMA queue */
425 __volatile__ int pending; /**< On hardware DMA queue */
426 struct drm_file *file_priv; /**< Private of holding file descr */
427 int context; /**< Kernel queue for this buffer */
428 int while_locked; /**< Dispatch this buffer while locked */
436 } list; /**< Which list we're on */
438 int dev_priv_size; /**< Size of buffer private storage */
439 void *dev_private; /**< Per-buffer private storage */
442 /** bufs is one longer than it has to be */
443 struct drm_waitlist {
444 int count; /**< Number of possible buffers */
445 struct drm_buf **bufs; /**< List of pointers to buffers */
446 struct drm_buf **rp; /**< Read pointer */
447 struct drm_buf **wp; /**< Write pointer */
448 struct drm_buf **end; /**< End pointer */
449 spinlock_t read_lock;
450 spinlock_t write_lock;
453 typedef struct drm_dma_handle {
461 typedef struct drm_buf_entry {
467 struct drm_dma_handle **seglist;
469 int low_mark; /**< Low water mark */
470 int high_mark; /**< High water mark */
473 /* Event queued up for userspace to read */
474 struct drm_pending_event {
475 struct drm_event *event;
476 struct list_head link;
477 struct drm_file *file_priv;
478 pid_t pid; /* pid of requester, no guarantee it's valid by the time
479 we deliver the event, for tracing only */
480 void (*destroy)(struct drm_pending_event *event);
483 /* initial implementaton using a linked list - todo hashtab */
484 struct drm_prime_file_private {
485 struct list_head head;
488 #endif /* DUMBBELL_WIP */
491 /** File private data */
494 struct drm_device *dev;
497 /* true when the client has asked us to expose stereo 3D mode flags */
500 * true if client understands CRTC primary planes and cursor planes
503 unsigned universal_planes:1;
508 unsigned long ioctl_count;
509 struct list_head lhead;
512 /** Mapping of mm object handles to object pointers. */
513 struct idr object_idr;
514 /** Lock for synchronization of access to object_idr. */
515 struct lock table_lock;
520 struct drm_master *masterp;
523 * fbs - List of framebuffers associated with this file.
525 * Protected by fbs_lock. Note that the fbs list holds a reference on
526 * the fb object to prevent it from untimely disappearing.
528 struct list_head fbs;
529 struct lock fbs_lock;
531 wait_queue_head_t event_wait;
532 struct list_head event_list;
535 struct drm_prime_file_private prime;
540 atomic_t use_count; /**< Outstanding uses (+1) */
541 atomic_t finalization; /**< Finalization in progress */
542 atomic_t block_count; /**< Count of processes waiting */
543 atomic_t block_read; /**< Queue blocked for reads */
544 wait_queue_head_t read_queue; /**< Processes waiting on block_read */
545 atomic_t block_write; /**< Queue blocked for writes */
546 wait_queue_head_t write_queue; /**< Processes waiting on block_write */
547 atomic_t total_queued; /**< Total queued statistic */
548 atomic_t total_flushed; /**< Total flushes statistic */
549 atomic_t total_locks; /**< Total locks statistics */
550 enum drm_ctx_flags flags; /**< Context preserving and 2D-only */
551 struct drm_waitlist waitlist; /**< Pending buffers */
552 wait_queue_head_t flush_queue; /**< Processes waiting until flush */
558 struct drm_lock_data {
559 struct drm_hw_lock *hw_lock; /**< Hardware lock */
560 /** Private of lock holder's file (NULL=kernel) */
561 struct drm_file *file_priv;
562 wait_queue_head_t lock_queue; /**< Queue of blocked processes */
563 unsigned long lock_time; /**< Time of last lock in jiffies */
566 /* This structure, in the struct drm_device, is always initialized while the
568 * is open. dev->dma_lock protects the incrementing of dev->buf_use, which
569 * when set marks that no further bufs may be allocated until device teardown
570 * occurs (when the last open of the device has closed). The high/low
571 * watermarks of bufs are only touched by the X Server, and thus not
572 * concurrently accessed, so no locking is needed.
574 typedef struct drm_device_dma {
576 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */
577 int buf_count; /**< total number of buffers */
578 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */
580 int page_count; /**< number of pages */
581 unsigned long *pagelist; /**< page list */
582 unsigned long byte_count;
584 _DRM_DMA_USE_AGP = 0x01,
585 _DRM_DMA_USE_SG = 0x02,
586 _DRM_DMA_USE_FB = 0x04,
587 _DRM_DMA_USE_PCI_RO = 0x08
592 typedef struct drm_sg_mem {
599 * Kernel side of a mapping
601 struct drm_local_map {
602 resource_size_t offset; /**< Requested physical address (0 for SAREA)*/
603 unsigned long size; /**< Requested physical size (bytes) */
604 enum drm_map_type type; /**< Type of memory to map */
605 enum drm_map_flags flags; /**< Flags */
606 void *handle; /**< User-space: "Handle" to pass to mmap() */
607 /**< Kernel-space: kernel-virtual address */
608 int mtrr; /**< MTRR slot used */
611 typedef struct drm_local_map drm_local_map_t;
616 struct drm_map_list {
617 struct list_head head; /**< list head */
618 struct drm_hash_item hash;
619 struct drm_local_map *map; /**< mapping */
621 struct drm_master *master;
622 struct drm_mm_node *file_offset_node; /**< fake offset */
625 /* location of GART table */
626 #define DRM_ATI_GART_MAIN 1
627 #define DRM_ATI_GART_FB 2
629 #define DRM_ATI_GART_PCI 1
630 #define DRM_ATI_GART_PCIE 2
631 #define DRM_ATI_GART_IGP 3
633 struct drm_ati_pcigart_info {
634 int gart_table_location;
638 dma_addr_t table_mask;
639 dma_addr_t member_mask;
640 struct drm_dma_handle *table_handle;
641 drm_local_map_t mapping;
643 struct drm_dma_handle *dmah; /* handle for ATI PCIGART table */
647 * GEM specific mm private for tracking GEM objects
650 struct drm_vma_offset_manager vma_manager;
651 struct drm_mm offset_manager; /**< Offset mgmt for buffer objects */
652 struct drm_open_hash offset_hash; /**< User token hash table for maps */
653 struct unrhdr *idxunr;
657 #include "drm_crtc.h"
660 * struct drm_master - drm master structure
662 * @refcount: Refcount for this master object.
663 * @minor: Link back to minor char device we are master for. Immutable.
664 * @unique: Unique identifier: e.g. busid. Protected by drm_global_mutex.
665 * @unique_len: Length of unique field. Protected by drm_global_mutex.
666 * @unique_size: Amount allocated. Protected by drm_global_mutex.
667 * @magiclist: Hash of used authentication tokens. Protected by struct_mutex.
668 * @magicfree: List of used authentication tokens. Protected by struct_mutex.
669 * @lock: DRI lock information.
670 * @driver_priv: Pointer to driver-private information.
674 struct kref refcount; /* refcount for this master */
676 struct list_head head; /**< each minor contains a list of masters */
677 struct drm_minor *minor; /**< link back to minor we are a master for */
679 char *unique; /**< Unique identifier: e.g., busid */
680 int unique_len; /**< Length of unique field */
681 int unique_size; /**< amount allocated */
683 int blocked; /**< Blocked due to VC switch? */
685 struct drm_open_hash magiclist;
686 struct list_head magicfree;
687 struct drm_lock_data lock;
691 /* Size of ringbuffer for vblank timestamps. Just double-buffer
692 * in initial implementation.
694 #define DRM_VBLANKTIME_RBSIZE 2
696 /* Flags and return codes for get_vblank_timestamp() driver function. */
697 #define DRM_CALLED_FROM_VBLIRQ 1
698 #define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0)
699 #define DRM_VBLANKTIME_IN_VBLANK (1 << 1)
701 /* get_scanout_position() return flags */
702 #define DRM_SCANOUTPOS_VALID (1 << 0)
703 #define DRM_SCANOUTPOS_IN_VBLANK (1 << 1)
704 #define DRM_SCANOUTPOS_ACCURATE (1 << 2)
707 #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1)
710 #define upper_32_bits(n) ((u32)(((n) >> 16) >> 16))
713 * DRM driver structure. This structure represent the common code for
714 * a family of cards. There will one drm_device for each card present
718 int (*load)(struct drm_device *, unsigned long flags);
719 int (*use_msi)(struct drm_device *, unsigned long flags);
720 int (*firstopen)(struct drm_device *);
721 int (*open)(struct drm_device *, struct drm_file *);
722 void (*preclose)(struct drm_device *, struct drm_file *file_priv);
723 void (*postclose)(struct drm_device *, struct drm_file *);
724 void (*lastclose)(struct drm_device *);
725 int (*unload)(struct drm_device *);
726 void (*reclaim_buffers_locked)(struct drm_device *,
727 struct drm_file *file_priv);
728 int (*dma_ioctl)(struct drm_device *dev, void *data,
729 struct drm_file *file_priv);
730 void (*dma_ready)(struct drm_device *);
731 int (*dma_quiescent)(struct drm_device *);
732 int (*dma_flush_block_and_flush)(struct drm_device *, int context,
733 enum drm_lock_flags flags);
734 int (*dma_flush_unblock)(struct drm_device *, int context,
735 enum drm_lock_flags flags);
736 int (*context_ctor)(struct drm_device *dev, int context);
737 int (*context_dtor)(struct drm_device *dev, int context);
738 int (*kernel_context_switch)(struct drm_device *dev, int old,
740 int (*kernel_context_switch_unlock)(struct drm_device *dev);
741 void (*irq_preinstall)(struct drm_device *dev);
742 int (*irq_postinstall)(struct drm_device *dev);
743 void (*irq_uninstall)(struct drm_device *dev);
744 void (*irq_handler)(void *arg);
746 u32 (*get_vblank_counter)(struct drm_device *dev, int crtc);
747 int (*enable_vblank)(struct drm_device *dev, int crtc);
748 void (*disable_vblank)(struct drm_device *dev, int crtc);
751 * Called by vblank timestamping code.
753 * Return the current display scanout position from a crtc, and an
754 * optional accurate ktime_get timestamp of when position was measured.
756 * \param dev DRM device.
757 * \param crtc Id of the crtc to query.
758 * \param flags Flags from the caller (DRM_CALLED_FROM_VBLIRQ or 0).
759 * \param *vpos Target location for current vertical scanout position.
760 * \param *hpos Target location for current horizontal scanout position.
761 * \param *stime Target location for timestamp taken immediately before
762 * scanout position query. Can be NULL to skip timestamp.
763 * \param *etime Target location for timestamp taken immediately after
764 * scanout position query. Can be NULL to skip timestamp.
766 * Returns vpos as a positive number while in active scanout area.
767 * Returns vpos as a negative number inside vblank, counting the number
768 * of scanlines to go until end of vblank, e.g., -1 means "one scanline
769 * until start of active scanout / end of vblank."
771 * \return Flags, or'ed together as follows:
773 * DRM_SCANOUTPOS_VALID = Query successful.
774 * DRM_SCANOUTPOS_INVBL = Inside vblank.
775 * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of
776 * this flag means that returned position may be offset by a constant
777 * but unknown small number of scanlines wrt. real scanout position.
780 int (*get_scanout_position) (struct drm_device *dev, int crtc,
782 int *vpos, int *hpos, ktime_t *stime,
785 int (*get_vblank_timestamp)(struct drm_device *dev, int crtc,
786 int *max_error, struct timeval *vblank_time,
789 void (*gem_free_object)(struct drm_gem_object *obj);
790 int (*gem_open_object)(struct drm_gem_object *, struct drm_file *);
791 void (*gem_close_object)(struct drm_gem_object *, struct drm_file *);
793 struct cdev_pager_ops *gem_pager_ops;
795 int (*dumb_create)(struct drm_file *file_priv,
796 struct drm_device *dev, struct drm_mode_create_dumb *args);
797 int (*dumb_map_offset)(struct drm_file *file_priv,
798 struct drm_device *dev, uint32_t handle, uint64_t *offset);
799 int (*dumb_destroy)(struct drm_file *file_priv,
800 struct drm_device *dev, uint32_t handle);
802 int (*sysctl_init)(struct drm_device *dev,
803 struct sysctl_ctx_list *ctx, struct sysctl_oid *top);
804 void (*sysctl_cleanup)(struct drm_device *dev);
806 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */
809 * Called by \c drm_device_is_agp. Typically used to determine if a
810 * card is really attached to AGP or not.
812 * \param dev DRM device handle
815 * One of three values is returned depending on whether or not the
816 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
817 * (return of 1), or may or may not be AGP (return of 2).
819 int (*device_is_agp) (struct drm_device * dev);
824 const char *name; /* Simple driver name */
825 const char *desc; /* Longer driver name */
826 const char *date; /* Date of last major changes. */
830 const struct drm_ioctl_desc *ioctls;
835 * Info file list entry. This structure represents a debugfs or proc file to
836 * be created by the drm core
838 struct drm_info_list {
839 const char *name; /** file name */
840 int (*show)(struct seq_file*, void*); /** show callback */
841 u32 driver_features; /**< Required driver features for this entry */
846 * debugfs node structure. This structure represents a debugfs file.
848 struct drm_info_node {
849 struct list_head list;
850 struct drm_minor *minor;
851 const struct drm_info_list *info_ent;
856 * DRM minor structure. This structure represents a drm minor number.
859 int index; /**< Minor device number */
860 int type; /**< Control or render */
861 device_t kdev; /**< OS device */
862 struct drm_device *dev;
864 struct drm_master *master; /* currently active master for this node */
865 struct list_head master_list;
866 struct drm_mode_group mode_group;
869 struct drm_pending_vblank_event {
870 struct drm_pending_event base;
872 struct drm_event_vblank event;
875 struct drm_sysctl_info {
876 struct sysctl_ctx_list ctx;
880 /* Length for the array of resource pointers for drm_get_resource_*. */
881 #define DRM_MAX_PCI_RESOURCE 6
883 struct drm_vblank_crtc {
884 struct drm_device *dev; /* pointer to the drm_device */
885 wait_queue_head_t queue; /**< VBLANK wait queue */
886 struct timeval time[DRM_VBLANKTIME_RBSIZE]; /**< timestamp of current count */
887 struct timer_list disable_timer; /* delayed disable timer */
888 atomic_t count; /**< number of VBLANK interrupts */
889 atomic_t refcount; /* number of users of vblank interruptsper crtc */
890 u32 last; /* protected by dev->vbl_lock, used */
891 /* for wraparound handling */
892 u32 last_wait; /* Last vblank seqno waited per CRTC */
893 unsigned int inmodeset; /* Display driver is setting mode */
894 int crtc; /* crtc index */
895 bool enabled; /* so we don't call enable more than
900 * DRM device structure. This structure represent a complete card that
901 * may contain multiple heads.
904 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */
906 uint16_t pci_subdevice; /* PCI subsystem device id */
907 uint16_t pci_subvendor; /* PCI subsystem vendor id */
909 char *unique; /* Unique identifier: e.g., busid */
910 int unique_len; /* Length of unique field */
911 struct cdev *devnode; /* Device number for mknod */
912 int if_version; /* Highest interface version set */
914 int flags; /* Flags to open(2) */
917 struct spinlock dma_lock; /* protects dev->dma */
918 struct lwkt_serialize irq_lock; /* protects irq condition checks */
919 struct lock dev_lock; /* protects everything else */
923 struct lock struct_mutex; /**< For others */
924 struct lock master_mutex; /**< For drm_minor::master */
927 /** \name Usage Counters */
929 int open_count; /**< Outstanding files open, protected by drm_global_mutex. */
930 struct spinlock buf_lock; /**< For drm_device::buf_use and a few other things. */
931 int buf_use; /**< Buffers in use -- cannot alloc */
932 atomic_t buf_alloc; /**< Buffer allocation in progress */
936 /** \name Performance counters */
938 unsigned long counters;
939 enum drm_stat_type types[15];
944 struct drm_open_hash magiclist; /**< magic hash table */
945 struct list_head magicfree;
947 struct list_head filelist;
949 /** \name Memory management */
951 struct list_head maplist; /**< Linked list of regions */
952 int map_count; /**< Number of mappable regions */
953 struct drm_open_hash map_hash; /**< User token hash table for maps */
955 /** \name Context handle management */
957 struct list_head ctxlist; /**< Linked list of context handles */
958 int ctx_count; /**< Number of context handles */
959 struct lock ctxlist_mutex; /**< For ctxlist */
965 struct drm_lock_data lock; /* Information on hardware lock */
967 /* DMA queues (contexts) */
968 drm_device_dma_t *dma; /* Optional pointer for DMA support */
970 int irq; /* Interrupt used by board */
971 int irq_type; /* IRQ type (MSI enabled or not) */
972 int irqrid; /* Interrupt used by board */
973 struct resource *irqr; /* Resource for interrupt used by board */
974 void *irqh; /* Handle from bus_setup_intr */
976 /* Storage of resource pointers for drm_get_resource_* */
977 struct resource *pcir[DRM_MAX_PCI_RESOURCE];
978 int pcirid[DRM_MAX_PCI_RESOURCE];
985 /** \name Context support */
987 int irq_enabled; /**< True if irq handler is enabled */
988 __volatile__ long context_flag; /**< Context swapping flag */
989 __volatile__ long interrupt_flag; /**< Interruption handler flag */
990 __volatile__ long dma_flag; /**< DMA dispatch flag */
991 wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */
992 int last_checked; /**< Last context checked for DMA */
993 int last_context; /**< Last current context */
994 unsigned long last_switch; /**< jiffies at last context switch */
997 /** \name VBLANK IRQ support */
1001 * At load time, disabling the vblank interrupt won't be allowed since
1002 * old clients may not call the modeset ioctl and therefore misbehave.
1003 * Once the modeset ioctl *has* been called though, we can safely
1004 * disable them when unused.
1006 bool vblank_disable_allowed;
1009 * If true, vblank interrupt will be disabled immediately when the
1010 * refcount drops to zero, as opposed to via the vblank disable
1012 * This can be set to true it the hardware has a working vblank
1013 * counter and the driver uses drm_vblank_on() and drm_vblank_off()
1016 bool vblank_disable_immediate;
1018 /* array of size num_crtcs */
1019 struct drm_vblank_crtc *vblank;
1021 struct lock vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */
1022 struct lock vbl_lock;
1023 struct timer_list vblank_disable_timer;
1025 u32 max_vblank_count; /**< size of vblank counter register */
1030 struct list_head vblank_event_list;
1031 struct lock event_lock;
1035 struct sigio *buf_sigio; /* Processes waiting for SIGIO */
1037 /* Sysctl support */
1038 struct drm_sysctl_info *sysctl;
1039 int sysctl_node_idx;
1042 drm_sg_mem_t *sg; /* Scatter gather memory */
1043 unsigned int num_crtcs; /**< Number of CRTCs on this device */
1045 unsigned long *ctx_bitmap;
1052 struct drm_agp_head *agp; /**< AGP data */
1054 struct device *dev; /**< Device structure */
1055 struct pci_dev *pdev; /**< PCI device structure */
1056 int pci_vendor; /**< PCI vendor id */
1057 int pci_device; /**< PCI device id */
1059 struct drm_driver *driver;
1060 struct drm_local_map *agp_buffer_map;
1061 unsigned int agp_buffer_token;
1062 struct drm_minor *control; /**< Control node for card */
1063 struct drm_minor *primary; /**< render type primary screen head */
1065 struct drm_mode_config mode_config; /**< Current mode config */
1067 /** \name GEM information */
1069 struct lock object_name_lock;
1070 struct idr object_name_idr;
1074 void *sysctl_private;
1075 char busid_str[128];
1078 int switch_power_state;
1080 atomic_t unplugged; /* device has been unplugged or gone away */
1083 #define DRM_SWITCH_POWER_ON 0
1084 #define DRM_SWITCH_POWER_OFF 1
1085 #define DRM_SWITCH_POWER_CHANGING 2
1086 #define DRM_SWITCH_POWER_DYNAMIC_OFF 3
1088 static __inline__ int drm_core_check_feature(struct drm_device *dev,
1091 return ((dev->driver->driver_features & feature) ? 1 : 0);
1094 static inline void drm_device_set_unplugged(struct drm_device *dev)
1097 atomic_set(&dev->unplugged, 1);
1100 static inline int drm_device_is_unplugged(struct drm_device *dev)
1102 int ret = atomic_read(&dev->unplugged);
1107 static inline bool drm_is_primary_client(const struct drm_file *file_priv)
1109 return 0 /* file_priv->minor->type == DRM_MINOR_LEGACY */;
1113 * drm_is_master() - Check whether a DRM open-file is DRM-Master
1114 * @file: DRM open-file context
1116 * This checks whether a DRM open-file context is owner of the master context
1117 * attached to it. If a file owns a master context, it's called DRM-Master.
1118 * Per DRM device, only one such file can be DRM-Master at a time.
1120 * Returns: True if the file is DRM-Master, otherwise false.
1122 static inline bool drm_is_master(const struct drm_file *file)
1125 return file->master && file->master == file->minor->master;
1131 /******************************************************************/
1132 /** \name Internal function definitions */
1136 static inline int drm_core_has_AGP(struct drm_device *dev)
1138 return drm_core_check_feature(dev, DRIVER_USE_AGP);
1141 #define drm_core_has_AGP(dev) (0)
1144 extern int drm_notyet_flag;
1145 extern unsigned int drm_rnodes;
1146 extern unsigned int drm_universal_planes;
1148 extern int drm_vblank_offdelay;
1149 extern unsigned int drm_timestamp_precision;
1150 extern unsigned int drm_timestamp_monotonic;
1152 /* Driver support (drm_drv.h) */
1153 int drm_probe(device_t kdev, drm_pci_id_list_t *idlist);
1154 int drm_attach(device_t kdev, drm_pci_id_list_t *idlist);
1155 int drm_create_cdevs(device_t kdev);
1156 d_ioctl_t drm_ioctl;
1157 extern int drm_lastclose(struct drm_device *dev);
1158 extern bool drm_ioctl_flags(unsigned int nr, unsigned int *flags);
1160 /* Device support (drm_fops.h) */
1161 extern struct lock drm_global_mutex;
1163 d_close_t drm_close;
1165 d_kqfilter_t drm_kqfilter;
1166 int drm_release(device_t kdev);
1169 d_mmap_single_t drm_mmap_single;
1171 void drm_cdevpriv_dtor(void *cd);
1173 int drm_add_busid_modesetting(struct drm_device *dev,
1174 struct sysctl_ctx_list *ctx, struct sysctl_oid *top);
1176 /* File operations helpers (drm_fops.c) */
1177 extern int drm_open_helper(struct cdev *kdev, int flags, int fmt,
1179 struct drm_device *dev,
1181 extern struct drm_file *drm_find_file_by_proc(struct drm_device *dev,
1185 extern int drm_gem_prime_handle_to_fd(struct drm_device *dev,
1186 struct drm_file *file_priv, uint32_t handle, uint32_t flags,
1188 extern int drm_gem_prime_fd_to_handle(struct drm_device *dev,
1189 struct drm_file *file_priv, int prime_fd, uint32_t *handle);
1191 extern int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data,
1192 struct drm_file *file_priv);
1193 extern int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data,
1194 struct drm_file *file_priv);
1196 extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, vm_page_t *pages,
1197 dma_addr_t *addrs, int max_pages);
1198 #endif /* DUMBBELL_WIP */
1199 extern struct sg_table *drm_prime_pages_to_sg(vm_page_t *pages, int nr_pages);
1200 extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg);
1203 void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv);
1204 void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv);
1205 int drm_prime_add_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t handle);
1206 int drm_prime_lookup_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t *handle);
1207 void drm_prime_remove_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf);
1209 int drm_prime_add_dma_buf(struct drm_device *dev, struct drm_gem_object *obj);
1210 int drm_prime_lookup_obj(struct drm_device *dev, struct dma_buf *buf,
1211 struct drm_gem_object **obj);
1212 #endif /* DUMBBELL_WIP */
1214 void drm_mem_init(void);
1215 void drm_mem_uninit(void);
1216 void *drm_ioremap_wc(struct drm_device *dev, drm_local_map_t *map);
1217 void *drm_ioremap(struct drm_device *dev, drm_local_map_t *map);
1218 void drm_ioremapfree(drm_local_map_t *map);
1219 int drm_mtrr_add(unsigned long offset, size_t size, int flags);
1220 int drm_mtrr_del(int handle, unsigned long offset, size_t size, int flags);
1222 /* Locking IOCTL support (drm_lock.c) */
1223 int drm_lock_take(struct drm_lock_data *lock_data,
1224 unsigned int context);
1225 int drm_lock_transfer(struct drm_lock_data *lock_data,
1226 unsigned int context);
1227 int drm_lock_free(struct drm_lock_data *lock_data,
1228 unsigned int context);
1231 * These are exported to drivers so that they can implement fencing using
1232 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
1235 unsigned long drm_get_resource_start(struct drm_device *dev,
1236 unsigned int resource);
1237 unsigned long drm_get_resource_len(struct drm_device *dev,
1238 unsigned int resource);
1240 /* IRQ support (drm_irq.h) */
1241 extern int drm_irq_install(struct drm_device *dev, int irq);
1242 int drm_irq_uninstall(struct drm_device *dev);
1243 void drm_driver_irq_preinstall(struct drm_device *dev);
1244 void drm_driver_irq_postinstall(struct drm_device *dev);
1245 void drm_driver_irq_uninstall(struct drm_device *dev);
1247 extern int drm_vblank_init(struct drm_device *dev, int num_crtcs);
1248 extern int drm_wait_vblank(struct drm_device *dev, void *data,
1249 struct drm_file *filp);
1250 extern u32 drm_vblank_count(struct drm_device *dev, int crtc);
1251 extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc,
1252 struct timeval *vblanktime);
1253 extern void drm_send_vblank_event(struct drm_device *dev, int crtc,
1254 struct drm_pending_vblank_event *e);
1255 extern bool drm_handle_vblank(struct drm_device *dev, int crtc);
1256 extern int drm_vblank_get(struct drm_device *dev, int crtc);
1257 extern void drm_vblank_put(struct drm_device *dev, int crtc);
1258 extern int drm_crtc_vblank_get(struct drm_crtc *crtc);
1259 extern void drm_crtc_vblank_put(struct drm_crtc *crtc);
1260 extern void drm_wait_one_vblank(struct drm_device *dev, int crtc);
1261 extern void drm_crtc_wait_one_vblank(struct drm_crtc *crtc);
1262 extern void drm_vblank_off(struct drm_device *dev, int crtc);
1263 extern void drm_vblank_on(struct drm_device *dev, int crtc);
1264 extern void drm_crtc_vblank_off(struct drm_crtc *crtc);
1265 extern void drm_crtc_vblank_on(struct drm_crtc *crtc);
1266 extern void drm_vblank_cleanup(struct drm_device *dev);
1268 extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev,
1269 int crtc, int *max_error,
1270 struct timeval *vblank_time,
1272 const struct drm_crtc *refcrtc,
1273 const struct drm_display_mode *mode);
1274 extern void drm_calc_timestamping_constants(struct drm_crtc *crtc,
1275 const struct drm_display_mode *mode);
1278 * drm_crtc_vblank_waitqueue - get vblank waitqueue for the CRTC
1279 * @crtc: which CRTC's vblank waitqueue to retrieve
1281 * This function returns a pointer to the vblank waitqueue for the CRTC.
1282 * Drivers can use this to implement vblank waits using wait_event() & co.
1284 static inline wait_queue_head_t *drm_crtc_vblank_waitqueue(struct drm_crtc *crtc)
1286 return &crtc->dev->vblank[drm_crtc_index(crtc)].queue;
1289 /* Modesetting support */
1290 extern void drm_vblank_pre_modeset(struct drm_device *dev, int crtc);
1291 extern void drm_vblank_post_modeset(struct drm_device *dev, int crtc);
1292 extern int drm_modeset_ctl(struct drm_device *dev, void *data,
1293 struct drm_file *file_priv);
1295 /* AGP/GART support (drm_agpsupport.h) */
1297 #include <drm/drm_agpsupport.h>
1299 /* sysctl support (drm_sysctl.h) */
1300 extern int drm_sysctl_init(struct drm_device *dev);
1301 extern int drm_sysctl_cleanup(struct drm_device *dev);
1303 /* ATI PCIGART support (ati_pcigart.c) */
1304 int drm_ati_pcigart_init(struct drm_device *dev,
1305 struct drm_ati_pcigart_info *gart_info);
1306 int drm_ati_pcigart_cleanup(struct drm_device *dev,
1307 struct drm_ati_pcigart_info *gart_info);
1309 /* Cache management (drm_memory.c) */
1310 void drm_clflush_pages(vm_page_t *pages, unsigned long num_pages);
1312 /* Locking IOCTL support (drm_drv.c) */
1313 int drm_lock(struct drm_device *dev, void *data,
1314 struct drm_file *file_priv);
1315 int drm_unlock(struct drm_device *dev, void *data,
1316 struct drm_file *file_priv);
1317 int drm_setversion(struct drm_device *dev, void *data,
1318 struct drm_file *file_priv);
1321 * These are exported to drivers so that they can implement fencing using
1322 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
1325 extern int drm_i_have_hw_lock(struct drm_device *dev, struct drm_file *file_priv);
1327 /* Misc. IOCTL support (drm_ioctl.c) */
1328 int drm_irq_by_busid(struct drm_device *dev, void *data,
1329 struct drm_file *file_priv);
1330 int drm_getunique(struct drm_device *dev, void *data,
1331 struct drm_file *file_priv);
1332 int drm_setunique(struct drm_device *dev, void *data,
1333 struct drm_file *file_priv);
1334 int drm_getmap(struct drm_device *dev, void *data,
1335 struct drm_file *file_priv);
1336 int drm_getclient(struct drm_device *dev, void *data,
1337 struct drm_file *file_priv);
1338 int drm_getstats(struct drm_device *dev, void *data,
1339 struct drm_file *file_priv);
1340 int drm_getcap(struct drm_device *dev, void *data,
1341 struct drm_file *file_priv);
1342 extern int drm_setclientcap(struct drm_device *dev, void *data,
1343 struct drm_file *file_priv);
1344 int drm_noop(struct drm_device *dev, void *data,
1345 struct drm_file *file_priv);
1347 /* Authentication IOCTL support (drm_auth.c) */
1348 int drm_getmagic(struct drm_device *dev, void *data,
1349 struct drm_file *file_priv);
1350 int drm_authmagic(struct drm_device *dev, void *data,
1351 struct drm_file *file_priv);
1353 /* Cache management (drm_cache.c) */
1354 void drm_clflush_virt_range(void *addr, unsigned long length);
1356 /* DMA support (drm_dma.c) */
1357 int drm_dma(struct drm_device *dev, void *data, struct drm_file *file_priv);
1359 /* IRQ support (drm_irq.c) */
1360 int drm_control(struct drm_device *dev, void *data,
1361 struct drm_file *file_priv);
1363 /* Stub support (drm_stub.h) */
1364 extern int drm_setmaster_ioctl(struct drm_device *dev, void *data,
1365 struct drm_file *file_priv);
1366 extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
1367 struct drm_file *file_priv);
1369 extern void drm_put_dev(struct drm_device *dev);
1370 extern void drm_unplug_dev(struct drm_device *dev);
1371 extern unsigned int drm_debug;
1373 /* Scatter Gather Support (drm_scatter.c) */
1374 int drm_sg_alloc_ioctl(struct drm_device *dev, void *data,
1375 struct drm_file *file_priv);
1376 int drm_sg_free(struct drm_device *dev, void *data,
1377 struct drm_file *file_priv);
1379 /* consistent PCI memory functions (drm_pci.c) */
1380 extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
1382 void drm_pci_free(struct drm_device *dev, drm_dma_handle_t *dmah);
1384 /* sysfs support (drm_sysfs.c) */
1385 struct drm_sysfs_class;
1386 extern struct class *drm_sysfs_create(struct module *owner, char *name);
1387 extern void drm_sysfs_destroy(void);
1388 extern int drm_sysfs_device_add(struct drm_minor *minor);
1389 extern void drm_sysfs_hotplug_event(struct drm_device *dev);
1390 extern void drm_sysfs_device_remove(struct drm_minor *minor);
1391 extern int drm_sysfs_connector_add(struct drm_connector *connector);
1392 extern void drm_sysfs_connector_remove(struct drm_connector *connector);
1394 int drm_gem_close_ioctl(struct drm_device *dev, void *data,
1395 struct drm_file *file_priv);
1396 int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
1397 struct drm_file *file_priv);
1398 int drm_gem_open_ioctl(struct drm_device *dev, void *data,
1399 struct drm_file *file_priv);
1400 void drm_gem_open(struct drm_device *dev, struct drm_file *file_priv);
1401 void drm_gem_release(struct drm_device *dev, struct drm_file *file_priv);
1403 int drm_gem_mmap_single(struct drm_device *dev, vm_ooffset_t *offset,
1404 vm_size_t size, struct vm_object **obj_res, int nprot);
1405 void drm_gem_pager_dtr(void *obj);
1407 struct ttm_bo_device;
1408 int ttm_bo_mmap_single(struct ttm_bo_device *bdev, vm_ooffset_t *offset,
1409 vm_size_t size, struct vm_object **obj_res, int nprot);
1410 struct ttm_buffer_object;
1411 void ttm_bo_release_mmap(struct ttm_buffer_object *bo);
1413 void drm_device_lock_mtx(struct drm_device *dev);
1414 void drm_device_unlock_mtx(struct drm_device *dev);
1415 int drm_device_sleep_mtx(struct drm_device *dev, void *chan, int flags,
1416 const char *msg, int timeout);
1417 void drm_device_assert_mtx_locked(struct drm_device *dev);
1418 void drm_device_assert_mtx_unlocked(struct drm_device *dev);
1420 void drm_device_lock_struct(struct drm_device *dev);
1421 void drm_device_unlock_struct(struct drm_device *dev);
1422 int drm_device_sleep_struct(struct drm_device *dev, void *chan, int flags,
1423 const char *msg, int timeout);
1424 void drm_device_assert_struct_locked(struct drm_device *dev);
1425 void drm_device_assert_struct_unlocked(struct drm_device *dev);
1427 void drm_compat_locking_init(struct drm_device *dev);
1428 void drm_sleep_locking_init(struct drm_device *dev);
1430 /* XXX glue logic, should be done in drm_pci_init(), pending drm update */
1431 void drm_init_pdev(struct device *dev, struct pci_dev **pdev);
1432 void drm_fini_pdev(struct pci_dev **pdev);
1434 /* Inline replacements for drm_alloc and friends */
1435 static __inline__ void *
1436 drm_alloc(size_t size, struct malloc_type *area)
1438 return kmalloc(size, area, M_WAITOK | M_NULLOK);
1441 static __inline__ void *
1442 drm_calloc(size_t nmemb, size_t size, struct malloc_type *area)
1444 return kmalloc(size * nmemb, area, M_WAITOK | M_NULLOK | M_ZERO);
1447 static __inline__ void
1448 drm_free(void *pt, struct malloc_type *area)
1453 static __inline__ void
1454 drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev)
1456 map->handle = drm_ioremap_wc(dev, map);
1458 static __inline__ void
1459 drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev)
1461 map->handle = drm_ioremap(dev, map);
1463 static __inline__ void
1464 drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev)
1466 if ( map->handle && map->size )
1467 drm_ioremapfree(map);
1470 static __inline__ struct drm_local_map *
1471 drm_core_findmap(struct drm_device *dev, unsigned long offset)
1473 struct drm_map_list *_entry;
1475 list_for_each_entry(_entry, &dev->maplist, head) {
1476 if (offset == (unsigned long)_entry->map->handle)
1482 static __inline__ void drm_core_dropmap(struct drm_map *map)
1486 #include <drm/drm_mem_util.h>
1488 struct drm_device *drm_dev_alloc(struct drm_driver *driver,
1489 struct device *parent);
1490 void drm_dev_ref(struct drm_device *dev);
1491 void drm_dev_unref(struct drm_device *dev);
1492 int drm_dev_register(struct drm_device *dev, unsigned long flags);
1493 void drm_dev_unregister(struct drm_device *dev);
1494 int drm_dev_set_unique(struct drm_device *dev, const char *fmt, ...);
1496 /* FreeBSD compatibility macros */
1497 #define VM_OBJECT_WLOCK(object) VM_OBJECT_LOCK(object)
1498 #define VM_OBJECT_WUNLOCK(object) VM_OBJECT_UNLOCK(object)
1500 #define DRM_PCIE_SPEED_25 1
1501 #define DRM_PCIE_SPEED_50 2
1502 #define DRM_PCIE_SPEED_80 4
1504 extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask);
1507 #define drm_can_sleep() (HZ & 1)
1509 #endif /* __KERNEL__ */
1510 #endif /* _DRM_P_H_ */