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.
34 * $FreeBSD: head/sys/dev/drm2/drmP.h 255045 2013-08-29 23:09:34Z jkim $
40 #if defined(_KERNEL) || defined(__KERNEL__)
42 #include <sys/param.h>
43 #include <sys/queue.h>
44 #include <sys/malloc.h>
45 #include <sys/kernel.h>
47 #include <sys/module.h>
48 #include <sys/systm.h>
49 #include <sys/device.h>
50 #include <sys/sglist.h>
55 #include <sys/spinlock.h>
56 #include <sys/spinlock2.h>
57 #include <sys/fcntl.h>
59 #include <sys/filio.h>
60 #include <sys/sysctl.h>
62 #include <sys/queue.h>
63 #include <sys/signalvar.h>
66 #include <sys/taskqueue.h>
70 #include <vm/vm_extern.h>
71 #include <vm/vm_kern.h>
72 #include <vm/vm_map.h>
73 #include <vm/vm_object.h>
74 #include <vm/vm_page2.h>
75 #include <vm/vm_pager.h>
76 #include <vm/vm_param.h>
77 #include <machine/param.h>
78 #include <machine/pmap.h>
79 #if defined(__i386__) || defined(__amd64__)
80 #include <machine/specialreg.h>
82 #include <machine/sysarch.h>
83 #include <sys/endian.h>
86 #include <sys/memrange.h>
87 #include <dev/agp/agpvar.h>
88 #include <sys/agpio.h>
89 #include <sys/mutex.h>
90 #include <bus/pci/pcivar.h>
91 #include <bus/pci/pcireg.h>
93 MALLOC_DECLARE(M_DRM);
95 #include <uapi_drm/drm.h>
96 #include <uapi_drm/drm_sarea.h>
98 #include <linux/atomic.h>
99 #include <linux/bug.h>
100 #include <linux/err.h>
101 #include <linux/idr.h>
102 #include <linux/pci.h>
103 #include <linux/jiffies.h>
104 #include <linux/kernel.h>
105 #include <linux/kref.h>
106 #include <linux/list.h>
107 #include <linux/mm.h>
108 #include <linux/moduleparam.h>
109 #include <linux/mutex.h>
110 #include <linux/scatterlist.h>
111 #include <linux/timer.h>
113 #include <linux/types.h>
114 #include <linux/wait.h>
115 #include <linux/workqueue.h>
117 #include <asm/uaccess.h>
122 #include <drm/drm_os_linux.h>
123 #include <drm/drm_hashtab.h>
124 #include <drm/drm_mm.h>
126 #define DRM_UT_CORE 0x01
127 #define DRM_UT_DRIVER 0x02
128 #define DRM_UT_KMS 0x04
129 #define DRM_UT_PRIME 0x08
131 * Three debug levels are defined.
132 * drm_core, drm_driver, drm_kms
133 * drm_core level can be used in the generic drm code. For example:
134 * drm_ioctl, drm_mm, drm_memory
135 * The macro definition of DRM_DEBUG is used.
136 * DRM_DEBUG(fmt, args...)
137 * The debug info by using the DRM_DEBUG can be obtained by adding
138 * the boot option of "drm.debug=1".
140 * drm_driver level can be used in the specific drm driver. It is used
141 * to add the debug info related with the drm driver. For example:
142 * i915_drv, i915_dma, i915_gem, radeon_drv,
143 * The macro definition of DRM_DEBUG_DRIVER can be used.
144 * DRM_DEBUG_DRIVER(fmt, args...)
145 * The debug info by using the DRM_DEBUG_DRIVER can be obtained by
146 * adding the boot option of "drm.debug=0x02"
148 * drm_kms level can be used in the KMS code related with specific drm driver.
149 * It is used to add the debug info related with KMS mode. For example:
150 * the connector/crtc ,
151 * The macro definition of DRM_DEBUG_KMS can be used.
152 * DRM_DEBUG_KMS(fmt, args...)
153 * The debug info by using the DRM_DEBUG_KMS can be obtained by
154 * adding the boot option of "drm.debug=0x04"
156 * If we add the boot option of "drm.debug=0x06", we can get the debug info by
157 * using the DRM_DEBUG_KMS and DRM_DEBUG_DRIVER.
158 * If we add the boot option of "drm.debug=0x05", we can get the debug info by
159 * using the DRM_DEBUG_KMS and DRM_DEBUG.
162 int drm_err(const char *func, const char *format, ...);
167 #define DRM_DEBUG_DEFAULT_ON 1
168 #endif /* DRM_DEBUG */
170 #define DRM_DEBUGBITS_DEBUG 0x1
171 #define DRM_DEBUGBITS_KMS 0x2
172 #define DRM_DEBUGBITS_FAILED_IOCTL 0x4
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_USE_MTRR 0x4
182 #define DRIVER_PCI_DMA 0x8
183 #define DRIVER_SG 0x10
184 #define DRIVER_HAVE_DMA 0x20
185 #define DRIVER_HAVE_IRQ 0x40
186 #define DRIVER_IRQ_SHARED 0x80
187 #define DRIVER_IRQ_VBL 0x100
188 #define DRIVER_DMA_QUEUE 0x200
189 #define DRIVER_FB_DMA 0x400
190 #define DRIVER_IRQ_VBL2 0x800
191 #define DRIVER_GEM 0x1000
192 #define DRIVER_MODESET 0x2000
193 #define DRIVER_PRIME 0x4000
194 #define DRIVER_LOCKLESS_IRQ 0x8000
196 /***********************************************************************/
197 /** \name Begin the DRM... */
200 #define DRM_MAGIC_HASH_ORDER 4 /**< Size of key hash table. Must be power of 2. */
201 #define DRM_KERNEL_CONTEXT 0 /* Change drm_resctx if changed */
202 #define DRM_RESERVED_CONTEXTS 1 /* Change drm_resctx if changed */
204 #define DRM_GEM_MAPPING_MASK (3ULL << 62)
205 #define DRM_GEM_MAPPING_KEY (2ULL << 62) /* Non-canonical address form */
206 #define DRM_GEM_MAX_IDX 0x3fffff
207 #define DRM_GEM_MAPPING_IDX(o) (((o) >> 40) & DRM_GEM_MAX_IDX)
208 #define DRM_GEM_MAPPING_OFF(i) (((uint64_t)(i)) << 40)
209 #define DRM_GEM_MAPPING_MAPOFF(o) \
210 ((o) & ~(DRM_GEM_MAPPING_OFF(DRM_GEM_MAX_IDX) | DRM_GEM_MAPPING_KEY))
212 SYSCTL_DECL(_hw_drm);
214 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
216 /***********************************************************************/
217 /** \name Internal types and structures */
220 #define DRM_ARRAY_SIZE(x) NELEM(x)
221 #define DRM_MIN(a,b) ((a)<(b)?(a):(b))
222 #define DRM_MAX(a,b) ((a)>(b)?(a):(b))
224 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
226 #define __OS_HAS_AGP 1
228 #define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP)
229 #define DRM_DEV_UID 0
230 #define DRM_DEV_GID 0
232 #define DRM_WAKEUP(w) wakeup((void *)w)
233 #define DRM_WAKEUP_INT(w) wakeup(w)
234 #define DRM_INIT_WAITQUEUE(queue) do {(void)(queue);} while (0)
236 #define DRM_CURPROC curthread
237 #define DRM_STRUCTPROC struct thread
238 #define DRM_CURRENTPID (curproc != NULL ? curproc->p_pid : -1)
239 #define DRM_LOCK(dev) lockmgr(&(dev)->struct_mutex, LK_EXCLUSIVE)
240 #define DRM_UNLOCK(dev) lockmgr(&(dev)->struct_mutex, LK_RELEASE)
241 #define DRM_LOCK_SLEEP(dev, chan, flags, msg, timeout) \
242 (lksleep((chan), &(dev)->struct_mutex, (flags), (msg), (timeout)))
243 #if defined(INVARIANTS)
244 #define DRM_LOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->struct_mutex, curthread) != 0);
245 #define DRM_UNLOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->struct_mutex, curthread) == 0);
247 #define DRM_LOCK_ASSERT(d)
248 #define DRM_UNLOCK_ASSERT(d)
251 #define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS)
253 #define DRM_IRQ_ARGS void *arg
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 /* DRM_SUSER returns true if the user is superuser */
268 #define DRM_SUSER(p) (priv_check(p, PRIV_DRIVER) == 0)
269 #define DRM_AGP_FIND_DEVICE() agp_find_device()
270 #define DRM_MTRR_WC MDF_WRITECOMBINE
272 /* DRM_READMEMORYBARRIER() prevents reordering of reads.
273 * DRM_WRITEMEMORYBARRIER() prevents reordering of writes.
274 * DRM_MEMORYBARRIER() prevents reordering of reads and writes.
276 #define DRM_READMEMORYBARRIER() cpu_lfence()
277 #define DRM_WRITEMEMORYBARRIER() cpu_sfence()
278 #define DRM_MEMORYBARRIER() cpu_mfence()
280 #define DRM_VERIFYAREA_READ( uaddr, size ) \
281 (!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ))
283 #define DRM_COPY_TO_USER(user, kern, size) \
284 copyout(kern, user, size)
285 #define DRM_COPY_FROM_USER(kern, user, size) \
286 copyin(user, kern, size)
287 #define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \
288 copyin(arg2, arg1, arg3)
289 #define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \
290 copyout(arg2, arg1, arg3)
291 #define DRM_GET_USER_UNCHECKED(val, uaddr) \
292 ((val) = fuword32(uaddr), 0)
294 #define drm_can_sleep() (DRM_HZ & 1)
296 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
297 (_map) = (_dev)->context_sareas[_ctx]; \
301 * Test that the hardware lock is held by the caller, returning otherwise.
303 * \param dev DRM device.
304 * \param filp file pointer of the caller.
306 #define LOCK_TEST_WITH_RETURN( dev, _file_priv ) \
308 if (!_DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock) || \
309 _file_priv->master->lock.file_priv != _file_priv) { \
310 DRM_ERROR( "%s called without lock held, held %d owner %p %p\n",\
311 __func__, _DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock),\
312 _file_priv->master->lock.file_priv, _file_priv); \
317 /* Returns -errno to shared code */
318 #define DRM_WAIT_ON( ret, queue, timeout, condition ) \
319 for ( ret = 0 ; !ret && !(condition) ; ) { \
321 lwkt_serialize_enter(&dev->irq_lock); \
322 if (!(condition)) { \
323 tsleep_interlock(&(queue), PCATCH); \
324 lwkt_serialize_exit(&dev->irq_lock); \
325 ret = -tsleep(&(queue), PCATCH | PINTERLOCKED, \
326 "drmwtq", (timeout)); \
328 lwkt_serialize_exit(&dev->irq_lock); \
334 vm_page_unhold_pages(vm_page_t *ma, int count)
338 for (i = 0; i < count; i++)
339 vm_page_unhold(ma[i]);
342 int vm_phys_fictitious_reg_range(vm_paddr_t start, vm_paddr_t end,
343 vm_memattr_t memattr);
344 void vm_phys_fictitious_unreg_range(vm_paddr_t start, vm_paddr_t end);
345 vm_page_t vm_phys_fictitious_to_vm_page(vm_paddr_t pa);
347 #define DRM_ERROR(fmt, ...) \
348 kprintf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \
349 DRM_CURRENTPID, __func__ , ##__VA_ARGS__)
351 #define DRM_INFO(fmt, ...) kprintf("info: [" DRM_NAME "] " fmt , ##__VA_ARGS__)
353 #define DRM_DEBUG(fmt, ...) do { \
354 if ((drm_debug & DRM_DEBUGBITS_DEBUG) != 0) \
355 kprintf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \
356 __func__ , ##__VA_ARGS__); \
359 #define DRM_DEBUG_KMS(fmt, ...) do { \
360 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \
361 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\
362 __func__ , ##__VA_ARGS__); \
365 #define DRM_DEBUG_DRIVER(fmt, ...) do { \
366 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \
367 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\
368 __func__ , ##__VA_ARGS__); \
371 #define DRM_LOG_KMS(fmt, ...) do { \
372 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID, \
373 __func__ , ##__VA_ARGS__); \
376 #define dev_dbg(dev, fmt, ...) do { \
377 if ((drm_debug& DRM_DEBUGBITS_KMS) != 0) { \
378 device_printf((dev), "debug: " fmt, ## __VA_ARGS__); \
382 typedef struct drm_pci_id_list
390 struct drm_msi_blacklist_entry
396 #define DRM_IOCTL_NR(n) ((n) & 0xff)
399 #define DRM_MASTER 0x2
400 #define DRM_ROOT_ONLY 0x4
401 #define DRM_CONTROL_ALLOW 0x8
402 #define DRM_UNLOCKED 0x10
404 typedef struct drm_ioctl_desc {
406 int (*func)(struct drm_device *dev, void *data,
407 struct drm_file *file_priv);
409 unsigned int cmd_drv;
413 * Creates a driver or general drm_ioctl_desc array entry for the given
414 * ioctl, for use by drm_ioctl().
416 #define DRM_IOCTL_DEF(ioctl, func, flags) \
417 [DRM_IOCTL_NR(ioctl)] = {ioctl, func, flags}
419 #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \
420 [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl}
422 struct drm_magic_entry {
423 struct list_head head;
424 struct drm_hash_item hash_item;
425 struct drm_file *priv;
428 typedef struct drm_magic_head {
429 struct drm_magic_entry *head;
430 struct drm_magic_entry *tail;
433 typedef struct drm_buf {
434 int idx; /**< Index into master buflist */
435 int total; /**< Buffer size */
436 int order; /**< log-base-2(total) */
437 int used; /**< Amount of buffer in use (for DMA) */
438 unsigned long offset; /**< Byte offset (used internally) */
439 void *address; /**< Address of buffer */
440 unsigned long bus_address; /**< Bus address of buffer */
441 struct drm_buf *next; /**< Kernel-only: used for free list */
442 __volatile__ int waiting; /**< On kernel DMA queue */
443 __volatile__ int pending; /**< On hardware DMA queue */
444 struct drm_file *file_priv; /**< Private of holding file descr */
445 int context; /**< Kernel queue for this buffer */
446 int while_locked; /**< Dispatch this buffer while locked */
454 } list; /**< Which list we're on */
456 int dev_priv_size; /**< Size of buffer private storage */
457 void *dev_private; /**< Per-buffer private storage */
460 struct drm_freelist {
461 int initialized; /* Freelist in use */
462 atomic_t count; /* Number of free buffers */
463 drm_buf_t *next; /* End pointer */
465 wait_queue_head_t waiting; /**< Processes waiting on free bufs */
466 int low_mark; /* Low water mark */
467 int high_mark; /* High water mark */
470 typedef struct drm_dma_handle {
477 typedef struct drm_buf_entry {
482 drm_dma_handle_t **seglist;
485 struct drm_freelist freelist;
488 /* Event queued up for userspace to read */
489 struct drm_pending_event {
490 struct drm_event *event;
491 struct list_head link;
492 struct drm_file *file_priv;
493 pid_t pid; /* pid of requester, no guarantee it's valid by the time
494 we deliver the event, for tracing only */
495 void (*destroy)(struct drm_pending_event *event);
498 /* initial implementaton using a linked list - todo hashtab */
499 struct drm_prime_file_private {
500 struct list_head head;
503 #endif /* DUMBBELL_WIP */
506 /** File private data */
512 unsigned long ioctl_count;
513 struct list_head lhead;
514 struct drm_minor *minor;
515 unsigned long lock_count;
518 /** Mapping of mm object handles to object pointers. */
519 struct idr object_idr;
520 /** Lock for synchronization of access to object_idr. */
521 struct lock table_lock;
526 int is_master; /* this file private is a master for a minor */
527 struct drm_master *master; /* master this node is currently associated with
528 N.B. not always minor->master */
531 * fbs - List of framebuffers associated with this file.
533 * Protected by fbs_lock. Note that the fbs list holds a reference on
534 * the fb object to prevent it from untimely disappearing.
536 struct list_head fbs;
537 struct lock fbs_lock;
539 wait_queue_head_t event_wait;
540 struct list_head event_list;
543 struct drm_prime_file_private prime;
549 struct drm_lock_data {
550 struct drm_hw_lock *hw_lock; /**< Hardware lock */
551 /** Private of lock holder's file (NULL=kernel) */
552 struct drm_file *file_priv;
553 wait_queue_head_t lock_queue; /**< Queue of blocked processes */
554 unsigned long lock_time; /**< Time of last lock in jiffies */
555 struct spinlock spinlock;
556 uint32_t kernel_waiters;
557 uint32_t user_waiters;
564 typedef struct drm_device_dma {
566 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */
567 int buf_count; /**< total number of buffers */
568 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */
570 int page_count; /**< number of pages */
571 unsigned long *pagelist; /**< page list */
572 unsigned long byte_count;
574 _DRM_DMA_USE_AGP = 0x01,
575 _DRM_DMA_USE_SG = 0x02,
576 _DRM_DMA_USE_FB = 0x04,
577 _DRM_DMA_USE_PCI_RO = 0x08
582 typedef struct drm_agp_mem {
584 unsigned long bound; /* address */
586 struct drm_agp_mem *prev;
587 struct drm_agp_mem *next;
590 typedef struct drm_agp_head {
592 struct agp_info agp_info;
594 drm_agp_mem_t *memory;
600 int cant_use_aperture;
601 unsigned long page_mask;
604 typedef struct drm_sg_mem {
612 struct drm_hw_lock *lock;
617 * Kernel side of a mapping
619 struct drm_local_map {
620 resource_size_t offset; /**< Requested physical address (0 for SAREA)*/
621 unsigned long size; /**< Requested physical size (bytes) */
622 enum drm_map_type type; /**< Type of memory to map */
623 enum drm_map_flags flags; /**< Flags */
624 void *handle; /**< User-space: "Handle" to pass to mmap() */
625 /**< Kernel-space: kernel-virtual address */
626 int mtrr; /**< MTRR slot used */
629 typedef struct drm_local_map drm_local_map_t;
634 struct drm_map_list {
635 struct list_head head; /**< list head */
636 struct drm_hash_item hash;
637 struct drm_local_map *map; /**< mapping */
639 struct drm_master *master;
640 struct drm_mm_node *file_offset_node; /**< fake offset */
644 * Context handle list
646 struct drm_ctx_list {
647 struct list_head head; /**< list head */
648 drm_context_t handle; /**< context handle */
649 struct drm_file *tag; /**< associated fd private data */
652 struct drm_vblank_info {
653 wait_queue_head_t queue; /* vblank wait queue */
654 atomic_t count; /* number of VBLANK interrupts */
655 /* (driver must alloc the right number of counters) */
656 atomic_t refcount; /* number of users of vblank interrupts */
657 u32 last; /* protected by dev->vbl_lock, used */
658 /* for wraparound handling */
659 int enabled; /* so we don't call enable more than */
660 /* once per disable */
661 int inmodeset; /* Display driver is setting mode */
664 /* location of GART table */
665 #define DRM_ATI_GART_MAIN 1
666 #define DRM_ATI_GART_FB 2
668 #define DRM_ATI_GART_PCI 1
669 #define DRM_ATI_GART_PCIE 2
670 #define DRM_ATI_GART_IGP 3
672 struct drm_ati_pcigart_info {
673 int gart_table_location;
677 dma_addr_t table_mask;
678 dma_addr_t member_mask;
679 struct drm_dma_handle *table_handle;
680 drm_local_map_t mapping;
682 struct drm_dma_handle *dmah; /* handle for ATI PCIGART table */
686 * GEM specific mm private for tracking GEM objects
689 struct drm_open_hash offset_hash; /**< User token hash table for maps */
690 struct unrhdr *idxunr;
693 struct drm_gem_object {
694 /** Reference count of this object */
695 struct kref refcount;
697 /** Handle count of this object. Each handle also holds a reference */
698 atomic_t handle_count; /* number of handles on this object */
700 /** Related drm device */
701 struct drm_device *dev;
703 /** File representing the shmem storage: filp in Linux parlance */
707 struct drm_hash_item map_list;
710 * Size of the object, in bytes. Immutable over the object's
716 * Global name for this object, starts at 1. 0 means unnamed.
717 * Access is covered by the object_name_lock in the related drm_device
722 * Memory domains. These monitor which caches contain read/write data
723 * related to the object. When transitioning from one set of domains
724 * to another, the driver is called to ensure that caches are suitably
725 * flushed and invalidated
727 uint32_t read_domains;
728 uint32_t write_domain;
731 * While validating an exec operation, the
732 * new read/write domain values are computed here.
733 * They will be transferred to the above values
734 * at the point that any cache flushing occurs
736 uint32_t pending_read_domains;
737 uint32_t pending_write_domain;
739 void *driver_private;
742 /* dma buf exported from this GEM object */
743 struct dma_buf *export_dma_buf;
745 /* dma buf attachment backing this object */
746 struct dma_buf_attachment *import_attach;
747 #endif /* DUMBBELL_WIP */
750 #include "drm_crtc.h"
752 /* per-master structure */
755 struct kref refcount; /* refcount for this master */
757 struct list_head head; /**< each minor contains a list of masters */
758 struct drm_minor *minor; /**< link back to minor we are a master for */
760 char *unique; /**< Unique identifier: e.g., busid */
761 int unique_len; /**< Length of unique field */
762 int unique_size; /**< amount allocated */
764 int blocked; /**< Blocked due to VC switch? */
766 /** \name Authentication */
768 struct drm_open_hash magiclist;
769 struct list_head magicfree;
772 struct drm_lock_data lock; /**< Information on hardware lock */
774 void *driver_priv; /**< Private structure for driver to use */
777 /* Size of ringbuffer for vblank timestamps. Just double-buffer
778 * in initial implementation.
780 #define DRM_VBLANKTIME_RBSIZE 2
782 /* Flags and return codes for get_vblank_timestamp() driver function. */
783 #define DRM_CALLED_FROM_VBLIRQ 1
784 #define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0)
785 #define DRM_VBLANKTIME_INVBL (1 << 1)
787 /* get_scanout_position() return flags */
788 #define DRM_SCANOUTPOS_VALID (1 << 0)
789 #define DRM_SCANOUTPOS_INVBL (1 << 1)
790 #define DRM_SCANOUTPOS_ACCURATE (1 << 2)
793 #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1)
796 #define upper_32_bits(n) ((u32)(((n) >> 16) >> 16))
799 int (*load)(struct drm_device *, unsigned long flags);
800 int (*use_msi)(struct drm_device *, unsigned long flags);
801 int (*firstopen)(struct drm_device *);
802 int (*open)(struct drm_device *, struct drm_file *);
803 void (*preclose)(struct drm_device *, struct drm_file *file_priv);
804 void (*postclose)(struct drm_device *, struct drm_file *);
805 void (*lastclose)(struct drm_device *);
806 int (*unload)(struct drm_device *);
807 void (*reclaim_buffers_locked)(struct drm_device *,
808 struct drm_file *file_priv);
809 int (*dma_ioctl)(struct drm_device *dev, void *data,
810 struct drm_file *file_priv);
811 void (*dma_ready)(struct drm_device *);
812 int (*dma_quiescent)(struct drm_device *);
813 int (*dma_flush_block_and_flush)(struct drm_device *, int context,
814 enum drm_lock_flags flags);
815 int (*dma_flush_unblock)(struct drm_device *, int context,
816 enum drm_lock_flags flags);
817 int (*context_ctor)(struct drm_device *dev, int context);
818 int (*context_dtor)(struct drm_device *dev, int context);
819 int (*kernel_context_switch)(struct drm_device *dev, int old,
821 int (*kernel_context_switch_unlock)(struct drm_device *dev);
822 void (*irq_preinstall)(struct drm_device *dev);
823 int (*irq_postinstall)(struct drm_device *dev);
824 void (*irq_uninstall)(struct drm_device *dev);
825 void (*irq_handler)(DRM_IRQ_ARGS);
827 u32 (*get_vblank_counter)(struct drm_device *dev, int crtc);
828 int (*enable_vblank)(struct drm_device *dev, int crtc);
829 void (*disable_vblank)(struct drm_device *dev, int crtc);
830 int (*get_scanout_position)(struct drm_device *dev, int crtc,
831 int *vpos, int *hpos);
833 int (*get_vblank_timestamp)(struct drm_device *dev, int crtc,
834 int *max_error, struct timeval *vblank_time,
837 /* Master routines */
838 int (*master_create)(struct drm_device *dev, struct drm_master *master);
839 void (*master_destroy)(struct drm_device *dev, struct drm_master *master);
841 * master_set is called whenever the minor master is set.
842 * master_drop is called whenever the minor master is dropped.
845 int (*master_set)(struct drm_device *dev, struct drm_file *file_priv,
847 void (*master_drop)(struct drm_device *dev, struct drm_file *file_priv,
850 int (*debugfs_init)(struct drm_minor *minor);
851 void (*debugfs_cleanup)(struct drm_minor *minor);
854 * Driver-specific constructor for drm_gem_objects, to set up
855 * obj->driver_private.
857 * Returns 0 on success.
859 int (*gem_init_object)(struct drm_gem_object *obj);
860 void (*gem_free_object)(struct drm_gem_object *obj);
861 int (*gem_open_object)(struct drm_gem_object *, struct drm_file *);
862 void (*gem_close_object)(struct drm_gem_object *, struct drm_file *);
864 struct cdev_pager_ops *gem_pager_ops;
866 int (*dumb_create)(struct drm_file *file_priv,
867 struct drm_device *dev, struct drm_mode_create_dumb *args);
868 int (*dumb_map_offset)(struct drm_file *file_priv,
869 struct drm_device *dev, uint32_t handle, uint64_t *offset);
870 int (*dumb_destroy)(struct drm_file *file_priv,
871 struct drm_device *dev, uint32_t handle);
873 int (*sysctl_init)(struct drm_device *dev,
874 struct sysctl_ctx_list *ctx, struct sysctl_oid *top);
875 void (*sysctl_cleanup)(struct drm_device *dev);
877 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */
880 * Called by \c drm_device_is_agp. Typically used to determine if a
881 * card is really attached to AGP or not.
883 * \param dev DRM device handle
886 * One of three values is returned depending on whether or not the
887 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
888 * (return of 1), or may or may not be AGP (return of 2).
890 int (*device_is_agp) (struct drm_device * dev);
892 drm_ioctl_desc_t *ioctls;
893 #ifdef COMPAT_FREEBSD32
894 drm_ioctl_desc_t *compat_ioctls;
895 int *compat_ioctls_nr;
903 const char *name; /* Simple driver name */
904 const char *desc; /* Longer driver name */
905 const char *date; /* Date of last major changes. */
911 #define DRM_MINOR_UNASSIGNED 0
912 #define DRM_MINOR_LEGACY 1
913 #define DRM_MINOR_CONTROL 2
914 #define DRM_MINOR_RENDER 3
918 * DRM minor structure. This structure represents a drm minor number.
921 int index; /**< Minor device number */
922 int type; /**< Control or render */
923 cdev_t device; /**< Device number for mknod */
924 device_t kdev; /**< OS device */
925 struct drm_device *dev;
927 struct drm_master *master; /* currently active master for this node */
928 struct list_head master_list;
929 struct drm_mode_group mode_group;
932 /* mode specified on the command line */
933 struct drm_cmdline_mode {
935 bool refresh_specified;
944 enum drm_connector_force force;
948 struct drm_pending_vblank_event {
949 struct drm_pending_event base;
951 struct drm_event_vblank event;
954 struct drm_sysctl_info {
955 struct sysctl_ctx_list ctx;
959 /* Length for the array of resource pointers for drm_get_resource_*. */
960 #define DRM_MAX_PCI_RESOURCE 6
962 typedef unsigned long long cycles_t;
965 * DRM device structure. This structure represent a complete card that
966 * may contain multiple heads.
969 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */
971 uint16_t pci_subdevice; /* PCI subsystem device id */
972 uint16_t pci_subvendor; /* PCI subsystem vendor id */
974 char *unique; /* Unique identifier: e.g., busid */
975 int unique_len; /* Length of unique field */
976 struct cdev *devnode; /* Device number for mknod */
977 int if_version; /* Highest interface version set */
979 int flags; /* Flags to open(2) */
982 struct spinlock dma_lock; /* protects dev->dma */
983 struct lwkt_serialize irq_lock; /* protects irq condition checks */
984 struct lock dev_lock; /* protects everything else */
988 struct lock struct_mutex; /**< For others */
991 /** \name Usage Counters */
993 int open_count; /**< Outstanding files open */
994 atomic_t ioctl_count; /**< Outstanding IOCTLs pending */
995 atomic_t vma_count; /**< Outstanding vma areas open */
996 int buf_use; /**< Buffers in use -- cannot alloc */
997 atomic_t buf_alloc; /**< Buffer allocation in progress */
1000 /** \name Performance counters */
1002 unsigned long counters;
1003 enum drm_stat_type types[15];
1004 atomic_t counts[15];
1007 struct list_head filelist;
1009 /** \name Memory management */
1011 struct list_head maplist; /**< Linked list of regions */
1012 int map_count; /**< Number of mappable regions */
1013 struct drm_open_hash map_hash; /**< User token hash table for maps */
1015 /** \name Context handle management */
1017 struct list_head ctxlist; /**< Linked list of context handles */
1018 int ctx_count; /**< Number of context handles */
1019 struct lock ctxlist_mutex; /**< For ctxlist */
1023 /** \name DMA support */
1025 struct drm_device_dma *dma; /**< Optional pointer for DMA support */
1028 int irq; /* Interrupt used by board */
1029 int msi_enabled; /* MSI enabled */
1030 int irqrid; /* Interrupt used by board */
1031 struct resource *irqr; /* Resource for interrupt used by board */
1032 void *irqh; /* Handle from bus_setup_intr */
1034 /** \name Context support */
1036 int irq_enabled; /**< True if irq handler is enabled */
1037 __volatile__ long context_flag; /**< Context swapping flag */
1038 __volatile__ long interrupt_flag; /**< Interruption handler flag */
1039 __volatile__ long dma_flag; /**< DMA dispatch flag */
1040 wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */
1041 int last_checked; /**< Last context checked for DMA */
1042 int last_context; /**< Last current context */
1043 unsigned long last_switch; /**< jiffies at last context switch */
1046 /* Storage of resource pointers for drm_get_resource_* */
1047 struct resource *pcir[DRM_MAX_PCI_RESOURCE];
1048 int pcirid[DRM_MAX_PCI_RESOURCE];
1057 struct sigio *buf_sigio; /* Processes waiting for SIGIO */
1059 /* Sysctl support */
1060 struct drm_sysctl_info *sysctl;
1061 int sysctl_node_idx;
1064 drm_sg_mem_t *sg; /* Scatter gather memory */
1065 unsigned long *ctx_bitmap;
1071 * At load time, disabling the vblank interrupt won't be allowed since
1072 * old clients may not call the modeset ioctl and therefore misbehave.
1073 * Once the modeset ioctl *has* been called though, we can safely
1074 * disable them when unused.
1076 int vblank_disable_allowed;
1078 wait_queue_head_t *vbl_queue; /**< VBLANK wait queue */
1079 atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */
1080 struct timeval *_vblank_time; /**< timestamp of current vblank_count (drivers must alloc right number of fields) */
1081 struct lock vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */
1082 struct lock vbl_lock;
1083 atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */
1084 u32 *last_vblank; /* protected by dev->vbl_lock, used */
1085 /* for wraparound handling */
1086 int *vblank_enabled; /* so we don't call enable more than
1088 int *vblank_inmodeset; /* Display driver is setting mode */
1089 u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */
1090 struct timer_list vblank_disable_timer;
1092 u32 max_vblank_count; /**< size of vblank counter register */
1097 struct list_head vblank_event_list;
1098 struct lock event_lock;
1104 struct fasync_struct *buf_async;/**< Processes waiting for SIGIO */
1105 wait_queue_head_t buf_readers; /**< Processes waiting to read */
1106 wait_queue_head_t buf_writers; /**< Processes waiting to ctx switch */
1108 struct drm_agp_head *agp; /**< AGP data */
1110 struct device *dev; /**< Device structure */
1111 struct pci_dev *pdev; /**< PCI device structure */
1112 int pci_vendor; /**< PCI vendor id */
1113 int pci_device; /**< PCI device id */
1114 struct drm_sigdata sigdata; /**< For block_all_signals */
1116 struct drm_driver *driver;
1117 struct drm_local_map *agp_buffer_map;
1118 unsigned int agp_buffer_token;
1119 struct drm_minor *control; /**< Control node for card */
1120 struct drm_minor *primary; /**< render type primary screen head */
1122 struct drm_mode_config mode_config; /**< Current mode config */
1124 /** \name GEM information */
1126 struct lock object_name_lock;
1127 struct idr object_name_idr;
1131 void *sysctl_private;
1132 char busid_str[128];
1135 int switch_power_state;
1138 #define DRM_SWITCH_POWER_ON 0
1139 #define DRM_SWITCH_POWER_OFF 1
1140 #define DRM_SWITCH_POWER_CHANGING 2
1142 static __inline__ int drm_core_check_feature(struct drm_device *dev,
1145 return ((dev->driver->driver_features & feature) ? 1 : 0);
1149 static inline int drm_core_has_AGP(struct drm_device *dev)
1151 return drm_core_check_feature(dev, DRIVER_USE_AGP);
1154 #define drm_core_has_AGP(dev) (0)
1164 DMI_PRODUCT_VERSION,
1171 DMI_BOARD_ASSET_TAG,
1174 DMI_CHASSIS_VERSION,
1176 DMI_CHASSIS_ASSET_TAG,
1180 struct dmi_strmatch {
1185 struct dmi_system_id {
1186 int (*callback)(const struct dmi_system_id *);
1188 struct dmi_strmatch matches[4];
1190 #define DMI_MATCH(a, b) {(a), (b)}
1191 bool dmi_check_system(const struct dmi_system_id *);
1193 extern int drm_notyet_flag;
1194 extern unsigned int drm_debug;
1196 extern unsigned int drm_vblank_offdelay;
1197 extern unsigned int drm_timestamp_precision;
1198 extern unsigned int drm_timestamp_monotonic;
1200 /* Device setup support (drm_drv.c) */
1201 int drm_probe(device_t kdev, drm_pci_id_list_t *idlist);
1202 int drm_attach(device_t kdev, drm_pci_id_list_t *idlist);
1203 int drm_create_cdevs(device_t kdev);
1205 d_ioctl_t drm_ioctl;
1206 extern int drm_lastclose(struct drm_device *dev);
1208 /* Device support (drm_fops.h) */
1210 d_close_t drm_close;
1212 d_kqfilter_t drm_kqfilter;
1213 int drm_release(device_t kdev);
1216 d_mmap_single_t drm_mmap_single;
1218 extern struct idr drm_minors_idr;
1220 extern drm_local_map_t *drm_getsarea(struct drm_device *dev);
1222 void drm_cdevpriv_dtor(void *cd);
1224 void drm_event_wakeup(struct drm_pending_event *e);
1226 int drm_add_busid_modesetting(struct drm_device *dev,
1227 struct sysctl_ctx_list *ctx, struct sysctl_oid *top);
1229 /* File operations helpers (drm_fops.c) */
1230 extern struct drm_file *drm_find_file_by_proc(struct drm_device *dev,
1234 extern int drm_gem_prime_handle_to_fd(struct drm_device *dev,
1235 struct drm_file *file_priv, uint32_t handle, uint32_t flags,
1237 extern int drm_gem_prime_fd_to_handle(struct drm_device *dev,
1238 struct drm_file *file_priv, int prime_fd, uint32_t *handle);
1240 extern int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data,
1241 struct drm_file *file_priv);
1242 extern int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data,
1243 struct drm_file *file_priv);
1250 extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, vm_page_t *pages,
1251 dma_addr_t *addrs, int max_pages);
1252 #endif /* DUMBBELL_WIP */
1253 extern struct sg_table *drm_prime_pages_to_sg(vm_page_t *pages, int nr_pages);
1254 extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg);
1257 void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv);
1258 void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv);
1259 int drm_prime_add_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t handle);
1260 int drm_prime_lookup_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t *handle);
1261 void drm_prime_remove_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf);
1263 int drm_prime_add_dma_buf(struct drm_device *dev, struct drm_gem_object *obj);
1264 int drm_prime_lookup_obj(struct drm_device *dev, struct dma_buf *buf,
1265 struct drm_gem_object **obj);
1266 #endif /* DUMBBELL_WIP */
1268 /* Memory management support (drm_memory.c) */
1269 void drm_mem_init(void);
1270 void drm_mem_uninit(void);
1271 void *drm_ioremap_wc(struct drm_device *dev, drm_local_map_t *map);
1272 void *drm_ioremap(struct drm_device *dev, drm_local_map_t *map);
1273 void drm_ioremapfree(drm_local_map_t *map);
1274 int drm_mtrr_add(unsigned long offset, size_t size, int flags);
1275 int drm_mtrr_del(int handle, unsigned long offset, size_t size, int flags);
1277 int drm_ctxbitmap_init(struct drm_device *dev);
1278 void drm_ctxbitmap_cleanup(struct drm_device *dev);
1279 void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
1281 /* Locking IOCTL support (drm_lock.c) */
1282 int drm_lock_take(struct drm_lock_data *lock_data,
1283 unsigned int context);
1284 int drm_lock_transfer(struct drm_lock_data *lock_data,
1285 unsigned int context);
1286 int drm_lock_free(struct drm_lock_data *lock_data,
1287 unsigned int context);
1290 * These are exported to drivers so that they can implement fencing using
1291 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
1294 unsigned long drm_get_resource_start(struct drm_device *dev,
1295 unsigned int resource);
1296 unsigned long drm_get_resource_len(struct drm_device *dev,
1297 unsigned int resource);
1298 int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc *request);
1299 int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc *request);
1300 extern int drm_addmap(struct drm_device *dev, resource_size_t offset,
1301 unsigned int size, enum drm_map_type type,
1302 enum drm_map_flags flags, struct drm_local_map **map_ptr);
1303 extern int drm_addmap_ioctl(struct drm_device *dev, void *data,
1304 struct drm_file *file_priv);
1305 extern int drm_rmmap(struct drm_device *dev, struct drm_local_map *map);
1306 extern int drm_rmmap_locked(struct drm_device *dev, struct drm_local_map *map);
1307 extern int drm_rmmap_ioctl(struct drm_device *dev, void *data,
1308 struct drm_file *file_priv);
1309 extern int drm_addbufs(struct drm_device *dev, void *data,
1310 struct drm_file *file_priv);
1311 extern int drm_infobufs(struct drm_device *dev, void *data,
1312 struct drm_file *file_priv);
1313 extern int drm_markbufs(struct drm_device *dev, void *data,
1314 struct drm_file *file_priv);
1315 extern int drm_freebufs(struct drm_device *dev, void *data,
1316 struct drm_file *file_priv);
1317 extern int drm_mapbufs(struct drm_device *dev, void *data,
1318 struct drm_file *file_priv);
1319 extern int drm_order(unsigned long size);
1321 /* DMA support (drm_dma.c) */
1322 int drm_dma_setup(struct drm_device *dev);
1323 void drm_dma_takedown(struct drm_device *dev);
1324 void drm_free_buffer(struct drm_device *dev, drm_buf_t *buf);
1325 void drm_reclaim_buffers(struct drm_device *dev, struct drm_file *file_priv);
1326 #define drm_core_reclaim_buffers drm_reclaim_buffers
1328 /* IRQ support (drm_irq.h) */
1329 int drm_irq_install(struct drm_device *dev);
1330 int drm_irq_uninstall(struct drm_device *dev);
1331 void drm_driver_irq_preinstall(struct drm_device *dev);
1332 void drm_driver_irq_postinstall(struct drm_device *dev);
1333 void drm_driver_irq_uninstall(struct drm_device *dev);
1335 void drm_vblank_pre_modeset(struct drm_device *dev, int crtc);
1336 void drm_vblank_post_modeset(struct drm_device *dev, int crtc);
1337 int drm_modeset_ctl(struct drm_device *dev, void *data,
1338 struct drm_file *file_priv);
1340 extern int drm_vblank_init(struct drm_device *dev, int num_crtcs);
1341 extern int drm_wait_vblank(struct drm_device *dev, void *data,
1342 struct drm_file *filp);
1343 extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq);
1344 extern u32 drm_vblank_count(struct drm_device *dev, int crtc);
1345 extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc,
1346 struct timeval *vblanktime);
1347 extern void drm_send_vblank_event(struct drm_device *dev, int crtc,
1348 struct drm_pending_vblank_event *e);
1349 extern bool drm_handle_vblank(struct drm_device *dev, int crtc);
1350 void drm_handle_vblank_events(struct drm_device *dev, int crtc);
1351 extern int drm_vblank_get(struct drm_device *dev, int crtc);
1352 extern void drm_vblank_put(struct drm_device *dev, int crtc);
1353 extern void drm_vblank_off(struct drm_device *dev, int crtc);
1354 extern void drm_vblank_cleanup(struct drm_device *dev);
1355 extern u32 drm_get_last_vbltimestamp(struct drm_device *dev, int crtc,
1356 struct timeval *tvblank, unsigned flags);
1357 extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev,
1358 int crtc, int *max_error,
1359 struct timeval *vblank_time,
1361 struct drm_crtc *refcrtc);
1362 extern void drm_calc_timestamping_constants(struct drm_crtc *crtc);
1364 /* AGP/PCI Express/GART support (drm_agpsupport.c) */
1365 int drm_device_is_agp(struct drm_device *dev);
1366 int drm_device_is_pcie(struct drm_device *dev);
1367 drm_agp_head_t *drm_agp_init(void);
1368 int drm_agp_acquire(struct drm_device *dev);
1369 int drm_agp_release(struct drm_device *dev);
1370 int drm_agp_info(struct drm_device * dev, struct drm_agp_info *info);
1371 int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode);
1372 void *drm_agp_allocate_memory(size_t pages, u32 type);
1373 int drm_agp_free_memory(void *handle);
1374 int drm_agp_bind_memory(void *handle, off_t start);
1375 int drm_agp_unbind_memory(void *handle);
1376 int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request);
1377 int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request);
1378 int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
1379 int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request);
1381 /* Scatter Gather Support (drm_scatter.c) */
1382 void drm_sg_cleanup(drm_sg_mem_t *entry);
1383 int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request);
1385 /* sysctl support (drm_sysctl.h) */
1386 extern int drm_sysctl_init(struct drm_device *dev);
1387 extern int drm_sysctl_cleanup(struct drm_device *dev);
1389 /* ATI PCIGART support (ati_pcigart.c) */
1390 int drm_ati_pcigart_init(struct drm_device *dev,
1391 struct drm_ati_pcigart_info *gart_info);
1392 int drm_ati_pcigart_cleanup(struct drm_device *dev,
1393 struct drm_ati_pcigart_info *gart_info);
1395 /* Cache management (drm_memory.c) */
1396 void drm_clflush_pages(vm_page_t *pages, unsigned long num_pages);
1398 /* Locking IOCTL support (drm_drv.c) */
1399 int drm_lock(struct drm_device *dev, void *data,
1400 struct drm_file *file_priv);
1401 int drm_unlock(struct drm_device *dev, void *data,
1402 struct drm_file *file_priv);
1403 int drm_version(struct drm_device *dev, void *data,
1404 struct drm_file *file_priv);
1405 int drm_setversion(struct drm_device *dev, void *data,
1406 struct drm_file *file_priv);
1408 /* Misc. IOCTL support (drm_ioctl.c) */
1409 int drm_irq_by_busid(struct drm_device *dev, void *data,
1410 struct drm_file *file_priv);
1411 int drm_getunique(struct drm_device *dev, void *data,
1412 struct drm_file *file_priv);
1413 int drm_setunique(struct drm_device *dev, void *data,
1414 struct drm_file *file_priv);
1415 int drm_getmap(struct drm_device *dev, void *data,
1416 struct drm_file *file_priv);
1417 int drm_getclient(struct drm_device *dev, void *data,
1418 struct drm_file *file_priv);
1419 int drm_getstats(struct drm_device *dev, void *data,
1420 struct drm_file *file_priv);
1421 int drm_getcap(struct drm_device *dev, void *data,
1422 struct drm_file *file_priv);
1423 int drm_noop(struct drm_device *dev, void *data,
1424 struct drm_file *file_priv);
1426 /* Context IOCTL support (drm_context.c) */
1427 int drm_resctx(struct drm_device *dev, void *data,
1428 struct drm_file *file_priv);
1429 int drm_addctx(struct drm_device *dev, void *data,
1430 struct drm_file *file_priv);
1431 int drm_modctx(struct drm_device *dev, void *data,
1432 struct drm_file *file_priv);
1433 int drm_getctx(struct drm_device *dev, void *data,
1434 struct drm_file *file_priv);
1435 int drm_switchctx(struct drm_device *dev, void *data,
1436 struct drm_file *file_priv);
1437 int drm_newctx(struct drm_device *dev, void *data,
1438 struct drm_file *file_priv);
1439 int drm_rmctx(struct drm_device *dev, void *data,
1440 struct drm_file *file_priv);
1441 int drm_setsareactx(struct drm_device *dev, void *data,
1442 struct drm_file *file_priv);
1443 int drm_getsareactx(struct drm_device *dev, void *data,
1444 struct drm_file *file_priv);
1446 /* Authentication IOCTL support (drm_auth.h) */
1447 extern int drm_getmagic(struct drm_device *dev, void *data,
1448 struct drm_file *file_priv);
1449 extern int drm_authmagic(struct drm_device *dev, void *data,
1450 struct drm_file *file_priv);
1451 extern int drm_remove_magic(struct drm_master *master, drm_magic_t magic);
1453 /* DMA support (drm_dma.c) */
1454 int drm_dma(struct drm_device *dev, void *data, struct drm_file *file_priv);
1456 /* IRQ support (drm_irq.c) */
1457 int drm_control(struct drm_device *dev, void *data,
1458 struct drm_file *file_priv);
1460 /* AGP/GART support (drm_agpsupport.c) */
1461 int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
1462 struct drm_file *file_priv);
1463 int drm_agp_release_ioctl(struct drm_device *dev, void *data,
1464 struct drm_file *file_priv);
1465 int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
1466 struct drm_file *file_priv);
1467 int drm_agp_info_ioctl(struct drm_device *dev, void *data,
1468 struct drm_file *file_priv);
1469 int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
1470 struct drm_file *file_priv);
1471 int drm_agp_free_ioctl(struct drm_device *dev, void *data,
1472 struct drm_file *file_priv);
1473 int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
1474 struct drm_file *file_priv);
1475 int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
1476 struct drm_file *file_priv);
1478 /* Stub support (drm_stub.h) */
1479 extern int drm_setmaster_ioctl(struct drm_device *dev, void *data,
1480 struct drm_file *file_priv);
1481 extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
1482 struct drm_file *file_priv);
1483 struct drm_master *drm_master_create(struct drm_minor *minor);
1484 extern struct drm_master *drm_master_get(struct drm_master *master);
1485 extern void drm_master_put(struct drm_master **master);
1487 /* Scatter Gather Support (drm_scatter.c) */
1488 int drm_sg_alloc_ioctl(struct drm_device *dev, void *data,
1489 struct drm_file *file_priv);
1490 int drm_sg_free(struct drm_device *dev, void *data,
1491 struct drm_file *file_priv);
1493 /* consistent PCI memory functions (drm_pci.c) */
1494 extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
1496 void drm_pci_free(struct drm_device *dev, drm_dma_handle_t *dmah);
1498 /* sysfs support (drm_sysfs.c) */
1499 extern char *drm_get_connector_status_name(enum drm_connector_status status);
1501 /* Graphics Execution Manager library functions (drm_gem.c) */
1502 int drm_gem_init(struct drm_device *dev);
1503 void drm_gem_destroy(struct drm_device *dev);
1504 void drm_gem_object_release(struct drm_gem_object *obj);
1505 void drm_gem_object_free(struct kref *kref);
1507 int drm_gem_close_ioctl(struct drm_device *dev, void *data,
1508 struct drm_file *file_priv);
1509 int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
1510 struct drm_file *file_priv);
1511 int drm_gem_open_ioctl(struct drm_device *dev, void *data,
1512 struct drm_file *file_priv);
1513 void drm_gem_object_handle_free(struct drm_gem_object *obj);
1515 #include <drm/drm_global.h>
1518 drm_gem_object_reference(struct drm_gem_object *obj)
1520 kref_get(&obj->refcount);
1524 drm_gem_object_unreference(struct drm_gem_object *obj)
1527 kref_put(&obj->refcount, drm_gem_object_free);
1531 drm_gem_object_unreference_unlocked(struct drm_gem_object *obj)
1534 struct drm_device *dev = obj->dev;
1536 kref_put(&obj->refcount, drm_gem_object_free);
1541 int drm_gem_handle_create(struct drm_file *file_priv,
1542 struct drm_gem_object *obj,
1544 int drm_gem_handle_delete(struct drm_file *filp, u32 handle);
1547 drm_gem_object_handle_reference(struct drm_gem_object *obj)
1549 drm_gem_object_reference(obj);
1550 atomic_inc(&obj->handle_count);
1554 drm_gem_object_handle_unreference(struct drm_gem_object *obj)
1559 if (atomic_read(&obj->handle_count) == 0)
1562 * Must bump handle count first as this may be the last
1563 * ref, in which case the object would disappear before we
1564 * checked for a name
1566 if (atomic_dec_and_test(&obj->handle_count))
1567 drm_gem_object_handle_free(obj);
1568 drm_gem_object_unreference(obj);
1572 drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj)
1577 if (atomic_read(&obj->handle_count) == 0)
1581 * Must bump handle count first as this may be the last
1582 * ref, in which case the object would disappear before we
1583 * checked for a name
1586 if (atomic_dec_and_test(&obj->handle_count))
1587 drm_gem_object_handle_free(obj);
1588 drm_gem_object_unreference_unlocked(obj);
1591 int drm_gem_object_init(struct drm_device *dev, struct drm_gem_object *obj,
1593 int drm_gem_private_object_init(struct drm_device *dev,
1594 struct drm_gem_object *obj, size_t size);
1595 struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev,
1597 struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev,
1598 struct drm_file *file_priv, uint32_t handle);
1600 void drm_gem_open(struct drm_device *dev, struct drm_file *file_priv);
1601 void drm_gem_release(struct drm_device *dev, struct drm_file *file_priv);
1603 int drm_gem_create_mmap_offset(struct drm_gem_object *obj);
1604 void drm_gem_free_mmap_offset(struct drm_gem_object *obj);
1605 int drm_gem_mmap_single(struct drm_device *dev, vm_ooffset_t *offset,
1606 vm_size_t size, struct vm_object **obj_res, int nprot);
1607 void drm_gem_pager_dtr(void *obj);
1609 struct ttm_bo_device;
1610 int ttm_bo_mmap_single(struct ttm_bo_device *bdev, vm_ooffset_t *offset,
1611 vm_size_t size, struct vm_object **obj_res, int nprot);
1612 struct ttm_buffer_object;
1613 void ttm_bo_release_mmap(struct ttm_buffer_object *bo);
1615 void drm_device_lock_mtx(struct drm_device *dev);
1616 void drm_device_unlock_mtx(struct drm_device *dev);
1617 int drm_device_sleep_mtx(struct drm_device *dev, void *chan, int flags,
1618 const char *msg, int timeout);
1619 void drm_device_assert_mtx_locked(struct drm_device *dev);
1620 void drm_device_assert_mtx_unlocked(struct drm_device *dev);
1622 void drm_device_lock_struct(struct drm_device *dev);
1623 void drm_device_unlock_struct(struct drm_device *dev);
1624 int drm_device_sleep_struct(struct drm_device *dev, void *chan, int flags,
1625 const char *msg, int timeout);
1626 void drm_device_assert_struct_locked(struct drm_device *dev);
1627 void drm_device_assert_struct_unlocked(struct drm_device *dev);
1629 void drm_compat_locking_init(struct drm_device *dev);
1630 void drm_sleep_locking_init(struct drm_device *dev);
1633 bool drm_mode_parse_command_line_for_connector(const char *mode_option,
1634 struct drm_connector *connector, struct drm_cmdline_mode *mode);
1635 struct drm_display_mode *drm_mode_create_from_cmdline_mode(
1636 struct drm_device *dev, struct drm_cmdline_mode *cmd);
1638 /* Inline replacements for drm_alloc and friends */
1639 static __inline__ void *
1640 drm_alloc(size_t size, struct malloc_type *area)
1642 return kmalloc(size, area, M_WAITOK | M_NULLOK);
1645 static __inline__ void *
1646 drm_calloc(size_t nmemb, size_t size, struct malloc_type *area)
1648 return kmalloc(size * nmemb, area, M_WAITOK | M_NULLOK | M_ZERO);
1651 static __inline__ void *
1652 drm_realloc(void *oldpt, size_t oldsize, size_t size,
1653 struct malloc_type *area)
1656 res = krealloc(oldpt, size, area, M_WAITOK | M_NULLOK);
1657 if (res == NULL && oldpt != NULL)
1662 static __inline__ void
1663 drm_free(void *pt, struct malloc_type *area)
1669 /* Inline replacements for DRM_IOREMAP macros */
1670 static __inline__ void
1671 drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev)
1673 map->handle = drm_ioremap_wc(dev, map);
1675 static __inline__ void
1676 drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev)
1678 map->handle = drm_ioremap(dev, map);
1680 static __inline__ void
1681 drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev)
1683 if ( map->handle && map->size )
1684 drm_ioremapfree(map);
1687 static __inline__ struct drm_local_map *
1688 drm_core_findmap(struct drm_device *dev, unsigned long offset)
1690 struct drm_map_list *_entry;
1692 list_for_each_entry(_entry, &dev->maplist, head) {
1693 if (offset == (unsigned long)_entry->map->handle)
1699 static __inline__ void drm_core_dropmap(struct drm_map *map)
1703 #include <drm/drm_mem_util.h>
1705 int drm_get_minor(device_t, struct drm_device *dev, struct drm_minor **minor, int type);
1707 /* FreeBSD compatibility macros */
1708 #define VM_OBJECT_WLOCK(object) VM_OBJECT_LOCK(object)
1709 #define VM_OBJECT_WUNLOCK(object) VM_OBJECT_UNLOCK(object)
1711 #define DRM_PCIE_SPEED_25 1
1712 #define DRM_PCIE_SPEED_50 2
1713 #define DRM_PCIE_SPEED_80 4
1715 extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask);
1717 #define drm_can_sleep() (DRM_HZ & 1)
1719 #endif /* __KERNEL__ */
1720 #endif /* _DRM_P_H_ */