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 #include <uapi_drm/drm.h>
94 #include <uapi_drm/drm_sarea.h>
96 #include <linux/atomic.h>
97 #include <linux/idr.h>
98 #include <linux/jiffies.h>
99 #include <linux/kernel.h>
100 #include <linux/kref.h>
101 #include <linux/list.h>
102 #include <linux/timer.h>
103 #include <linux/types.h>
104 #include <linux/wait.h>
106 #include <asm/uaccess.h>
111 #include "drm_os_freebsd.h"
112 #include "drm_hashtab.h"
115 #define DRM_UT_CORE 0x01
116 #define DRM_UT_DRIVER 0x02
117 #define DRM_UT_KMS 0x04
118 #define DRM_UT_PRIME 0x08
123 #define DRM_DEBUG_DEFAULT_ON 1
124 #endif /* DRM_DEBUG */
126 #define DRM_DEBUGBITS_DEBUG 0x1
127 #define DRM_DEBUGBITS_KMS 0x2
128 #define DRM_DEBUGBITS_FAILED_IOCTL 0x4
133 /***********************************************************************/
134 /** \name DRM template customization defaults */
137 /* driver capabilities and requirements mask */
138 #define DRIVER_USE_AGP 0x1
139 #define DRIVER_REQUIRE_AGP 0x2
140 #define DRIVER_USE_MTRR 0x4
141 #define DRIVER_PCI_DMA 0x8
142 #define DRIVER_SG 0x10
143 #define DRIVER_HAVE_DMA 0x20
144 #define DRIVER_HAVE_IRQ 0x40
145 #define DRIVER_IRQ_SHARED 0x80
146 #define DRIVER_IRQ_VBL 0x100
147 #define DRIVER_DMA_QUEUE 0x200
148 #define DRIVER_FB_DMA 0x400
149 #define DRIVER_IRQ_VBL2 0x800
150 #define DRIVER_GEM 0x1000
151 #define DRIVER_MODESET 0x2000
152 #define DRIVER_PRIME 0x4000
153 #define DRIVER_LOCKLESS_IRQ 0x8000
155 /***********************************************************************/
156 /** \name Begin the DRM... */
159 #define DRM_HASH_SIZE 16 /* Size of key hash table */
160 #define DRM_KERNEL_CONTEXT 0 /* Change drm_resctx if changed */
161 #define DRM_RESERVED_CONTEXTS 1 /* Change drm_resctx if changed */
163 #define DRM_GEM_MAPPING_MASK (3ULL << 62)
164 #define DRM_GEM_MAPPING_KEY (2ULL << 62) /* Non-canonical address form */
165 #define DRM_GEM_MAX_IDX 0x3fffff
166 #define DRM_GEM_MAPPING_IDX(o) (((o) >> 40) & DRM_GEM_MAX_IDX)
167 #define DRM_GEM_MAPPING_OFF(i) (((uint64_t)(i)) << 40)
168 #define DRM_GEM_MAPPING_MAPOFF(o) \
169 ((o) & ~(DRM_GEM_MAPPING_OFF(DRM_GEM_MAX_IDX) | DRM_GEM_MAPPING_KEY))
171 MALLOC_DECLARE(DRM_MEM_DMA);
172 MALLOC_DECLARE(DRM_MEM_SAREA);
173 MALLOC_DECLARE(DRM_MEM_DRIVER);
174 MALLOC_DECLARE(DRM_MEM_MAGIC);
175 MALLOC_DECLARE(DRM_MEM_MAPS);
176 MALLOC_DECLARE(DRM_MEM_BUFS);
177 MALLOC_DECLARE(DRM_MEM_SEGS);
178 MALLOC_DECLARE(DRM_MEM_PAGES);
179 MALLOC_DECLARE(DRM_MEM_FILES);
180 MALLOC_DECLARE(DRM_MEM_BUFLISTS);
181 MALLOC_DECLARE(DRM_MEM_AGPLISTS);
182 MALLOC_DECLARE(DRM_MEM_CTXBITMAP);
183 MALLOC_DECLARE(DRM_MEM_SGLISTS);
184 MALLOC_DECLARE(DRM_MEM_MM);
185 MALLOC_DECLARE(DRM_MEM_HASHTAB);
186 MALLOC_DECLARE(DRM_MEM_KMS);
188 SYSCTL_DECL(_hw_drm);
190 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
192 /***********************************************************************/
193 /** \name Internal types and structures */
196 #define DRM_ARRAY_SIZE(x) NELEM(x)
197 #define DRM_MIN(a,b) ((a)<(b)?(a):(b))
198 #define DRM_MAX(a,b) ((a)>(b)?(a):(b))
200 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
202 #define __OS_HAS_AGP 1
204 #define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP)
205 #define DRM_DEV_UID 0
206 #define DRM_DEV_GID 0
208 #define DRM_WAKEUP(w) wakeup((void *)w)
209 #define DRM_WAKEUP_INT(w) wakeup(w)
210 #define DRM_INIT_WAITQUEUE(queue) do {(void)(queue);} while (0)
212 #define DRM_CURPROC curthread
213 #define DRM_STRUCTPROC struct thread
214 #define DRM_CURRENTPID (curproc != NULL ? curproc->p_pid : -1)
215 #define DRM_LOCK(dev) lockmgr(&(dev)->dev_struct_lock, LK_EXCLUSIVE)
216 #define DRM_UNLOCK(dev) lockmgr(&(dev)->dev_struct_lock, LK_RELEASE)
217 #define DRM_LOCK_SLEEP(dev, chan, flags, msg, timeout) \
218 (lksleep((chan), &(dev)->dev_struct_lock, (flags), (msg), (timeout)))
219 #if defined(INVARIANTS)
220 #define DRM_LOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->dev_struct_lock, curthread) != 0);
221 #define DRM_UNLOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->dev_struct_lock, curthread) == 0);
223 #define DRM_LOCK_ASSERT(d)
224 #define DRM_UNLOCK_ASSERT(d)
227 #define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS)
229 #define DRM_IRQ_ARGS void *arg
230 typedef void irqreturn_t;
231 #define IRQ_HANDLED /* nothing */
232 #define IRQ_NONE /* nothing */
239 #define DRM_AGP_MEM struct agp_memory_info
241 #define drm_get_device_from_kdev(_kdev) (_kdev->si_drv1)
243 #define PAGE_ALIGN(addr) round_page(addr)
244 /* DRM_SUSER returns true if the user is superuser */
245 #define DRM_SUSER(p) (priv_check(p, PRIV_DRIVER) == 0)
246 #define DRM_AGP_FIND_DEVICE() agp_find_device()
247 #define DRM_MTRR_WC MDF_WRITECOMBINE
249 /* DRM_READMEMORYBARRIER() prevents reordering of reads.
250 * DRM_WRITEMEMORYBARRIER() prevents reordering of writes.
251 * DRM_MEMORYBARRIER() prevents reordering of reads and writes.
253 #define DRM_READMEMORYBARRIER() cpu_lfence()
254 #define DRM_WRITEMEMORYBARRIER() cpu_sfence()
255 #define DRM_MEMORYBARRIER() cpu_mfence()
257 #define DRM_READ8(map, offset) \
258 *(volatile u_int8_t *)(((vm_offset_t)(map)->virtual) + \
259 (vm_offset_t)(offset))
260 #define DRM_READ16(map, offset) \
261 le16toh(*(volatile u_int16_t *)(((vm_offset_t)(map)->virtual) + \
262 (vm_offset_t)(offset)))
263 #define DRM_READ32(map, offset) \
264 le32toh(*(volatile u_int32_t *)(((vm_offset_t)(map)->virtual) + \
265 (vm_offset_t)(offset)))
266 #define DRM_READ64(map, offset) \
267 le64toh(*(volatile u_int64_t *)(((vm_offset_t)(map)->virtual) + \
268 (vm_offset_t)(offset)))
269 #define DRM_WRITE8(map, offset, val) \
270 *(volatile u_int8_t *)(((vm_offset_t)(map)->virtual) + \
271 (vm_offset_t)(offset)) = val
272 #define DRM_WRITE16(map, offset, val) \
273 *(volatile u_int16_t *)(((vm_offset_t)(map)->virtual) + \
274 (vm_offset_t)(offset)) = htole16(val)
275 #define DRM_WRITE32(map, offset, val) \
276 *(volatile u_int32_t *)(((vm_offset_t)(map)->virtual) + \
277 (vm_offset_t)(offset)) = htole32(val)
278 #define DRM_WRITE64(map, offset, val) \
279 *(volatile u_int64_t *)(((vm_offset_t)(map)->virtual) + \
280 (vm_offset_t)(offset)) = htole64(val)
282 #define DRM_VERIFYAREA_READ( uaddr, size ) \
283 (!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ))
285 #define DRM_COPY_TO_USER(user, kern, size) \
286 copyout(kern, user, size)
287 #define DRM_COPY_FROM_USER(kern, user, size) \
288 copyin(user, kern, size)
289 #define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \
290 copyin(arg2, arg1, arg3)
291 #define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \
292 copyout(arg2, arg1, arg3)
293 #define DRM_GET_USER_UNCHECKED(val, uaddr) \
294 ((val) = fuword32(uaddr), 0)
296 #define drm_can_sleep() (DRM_HZ & 1)
298 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
299 (_map) = (_dev)->context_sareas[_ctx]; \
302 #define LOCK_TEST_WITH_RETURN(dev, file_priv) \
304 if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) || \
305 dev->lock.file_priv != file_priv) { \
306 DRM_ERROR("%s called without lock held\n", \
312 /* Returns -errno to shared code */
313 #define DRM_WAIT_ON( ret, queue, timeout, condition ) \
314 for ( ret = 0 ; !ret && !(condition) ; ) { \
316 lwkt_serialize_enter(&dev->irq_lock); \
317 if (!(condition)) { \
318 tsleep_interlock(&(queue), PCATCH); \
319 lwkt_serialize_exit(&dev->irq_lock); \
320 ret = -tsleep(&(queue), PCATCH | PINTERLOCKED, \
321 "drmwtq", (timeout)); \
323 lwkt_serialize_exit(&dev->irq_lock); \
329 vm_page_unhold_pages(vm_page_t *ma, int count)
333 for (i = 0; i < count; i++)
334 vm_page_unhold(ma[i]);
337 int vm_phys_fictitious_reg_range(vm_paddr_t start, vm_paddr_t end,
338 vm_memattr_t memattr);
339 void vm_phys_fictitious_unreg_range(vm_paddr_t start, vm_paddr_t end);
340 vm_page_t vm_phys_fictitious_to_vm_page(vm_paddr_t pa);
342 #define DRM_ERROR(fmt, ...) \
343 kprintf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \
344 DRM_CURRENTPID, __func__ , ##__VA_ARGS__)
346 #define DRM_INFO(fmt, ...) kprintf("info: [" DRM_NAME "] " fmt , ##__VA_ARGS__)
348 #define DRM_DEBUG(fmt, ...) do { \
349 if ((drm_debug & DRM_DEBUGBITS_DEBUG) != 0) \
350 kprintf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \
351 __func__ , ##__VA_ARGS__); \
354 #define DRM_DEBUG_KMS(fmt, ...) do { \
355 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \
356 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\
357 __func__ , ##__VA_ARGS__); \
360 #define DRM_DEBUG_DRIVER(fmt, ...) do { \
361 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \
362 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\
363 __func__ , ##__VA_ARGS__); \
366 #define dev_err(dev, fmt, ...) \
367 device_printf((dev), "error: " fmt, ## __VA_ARGS__)
368 #define dev_warn(dev, fmt, ...) \
369 device_printf((dev), "warning: " fmt, ## __VA_ARGS__)
370 #define dev_info(dev, fmt, ...) \
371 device_printf((dev), "info: " fmt, ## __VA_ARGS__)
372 #define dev_dbg(dev, fmt, ...) do { \
373 if ((drm_debug& DRM_DEBUGBITS_KMS) != 0) { \
374 device_printf((dev), "debug: " fmt, ## __VA_ARGS__); \
378 typedef struct drm_pci_id_list
386 struct drm_msi_blacklist_entry
392 #define DRM_IOCTL_NR(n) ((n) & 0xff)
395 #define DRM_MASTER 0x2
396 #define DRM_ROOT_ONLY 0x4
397 #define DRM_CONTROL_ALLOW 0x8
398 #define DRM_UNLOCKED 0x10
400 typedef struct drm_ioctl_desc {
402 int (*func)(struct drm_device *dev, void *data,
403 struct drm_file *file_priv);
405 unsigned int cmd_drv;
409 * Creates a driver or general drm_ioctl_desc array entry for the given
410 * ioctl, for use by drm_ioctl().
412 #define DRM_IOCTL_DEF(ioctl, func, flags) \
413 [DRM_IOCTL_NR(ioctl)] = {ioctl, func, flags}
415 #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \
416 [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl}
418 typedef struct drm_magic_entry {
420 struct drm_file *priv;
421 struct drm_magic_entry *next;
424 typedef struct drm_magic_head {
425 struct drm_magic_entry *head;
426 struct drm_magic_entry *tail;
429 typedef struct drm_buf {
430 int idx; /**< Index into master buflist */
431 int total; /**< Buffer size */
432 int order; /**< log-base-2(total) */
433 int used; /**< Amount of buffer in use (for DMA) */
434 unsigned long offset; /**< Byte offset (used internally) */
435 void *address; /**< Address of buffer */
436 unsigned long bus_address; /**< Bus address of buffer */
437 struct drm_buf *next; /**< Kernel-only: used for free list */
438 __volatile__ int waiting; /**< On kernel DMA queue */
439 __volatile__ int pending; /**< On hardware DMA queue */
440 struct drm_file *file_priv; /**< Private of holding file descr */
441 int context; /**< Kernel queue for this buffer */
442 int while_locked; /**< Dispatch this buffer while locked */
450 } list; /**< Which list we're on */
452 int dev_priv_size; /**< Size of buffer private storage */
453 void *dev_private; /**< Per-buffer private storage */
456 struct drm_freelist {
457 int initialized; /* Freelist in use */
458 atomic_t count; /* Number of free buffers */
459 drm_buf_t *next; /* End pointer */
461 wait_queue_head_t waiting; /**< Processes waiting on free bufs */
462 int low_mark; /* Low water mark */
463 int high_mark; /* High water mark */
466 typedef struct drm_dma_handle {
473 typedef struct drm_buf_entry {
478 drm_dma_handle_t **seglist;
481 struct drm_freelist freelist;
484 /* Event queued up for userspace to read */
485 struct drm_pending_event {
486 struct drm_event *event;
487 struct list_head link;
488 struct drm_file *file_priv;
489 pid_t pid; /* pid of requester, no guarantee it's valid by the time
490 we deliver the event, for tracing only */
491 void (*destroy)(struct drm_pending_event *event);
494 /* initial implementaton using a linked list - todo hashtab */
495 struct drm_prime_file_private {
496 struct list_head head;
499 #endif /* DUMBBELL_WIP */
502 /** File private data */
505 struct drm_device *dev;
510 unsigned long ioctl_count;
511 struct list_head lhead;
513 /** Mapping of mm object handles to object pointers. */
514 struct idr object_idr;
515 /** Lock for synchronization of access to object_idr. */
516 struct lock table_lock;
521 struct drm_master *masterp;
523 struct list_head fbs;
525 wait_queue_head_t event_wait;
526 struct list_head event_list;
529 struct drm_prime_file_private prime;
535 struct drm_lock_data {
536 struct drm_hw_lock *hw_lock; /**< Hardware lock */
537 /** Private of lock holder's file (NULL=kernel) */
538 struct drm_file *file_priv;
539 wait_queue_head_t lock_queue; /**< Queue of blocked processes */
540 unsigned long lock_time; /**< Time of last lock in jiffies */
543 /* This structure, in the struct drm_device, is always initialized while the
545 * is open. dev->dma_lock protects the incrementing of dev->buf_use, which
546 * when set marks that no further bufs may be allocated until device teardown
547 * occurs (when the last open of the device has closed). The high/low
548 * watermarks of bufs are only touched by the X Server, and thus not
549 * concurrently accessed, so no locking is needed.
551 typedef struct drm_device_dma {
553 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */
554 int buf_count; /**< total number of buffers */
555 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */
557 int page_count; /**< number of pages */
558 unsigned long *pagelist; /**< page list */
559 unsigned long byte_count;
561 _DRM_DMA_USE_AGP = 0x01,
562 _DRM_DMA_USE_SG = 0x02,
563 _DRM_DMA_USE_FB = 0x04,
564 _DRM_DMA_USE_PCI_RO = 0x08
569 typedef struct drm_agp_mem {
571 unsigned long bound; /* address */
573 struct drm_agp_mem *prev;
574 struct drm_agp_mem *next;
577 typedef struct drm_agp_head {
579 struct agp_info agp_info;
581 drm_agp_mem_t *memory;
587 int cant_use_aperture;
588 unsigned long page_mask;
591 typedef struct drm_sg_mem {
597 #define DRM_MAP_HANDLE_BITS (sizeof(void *) == 4 ? 4 : 24)
598 #define DRM_MAP_HANDLE_SHIFT (sizeof(void *) * 8 - DRM_MAP_HANDLE_BITS)
601 * Kernel side of a mapping
603 struct drm_local_map {
604 unsigned long offset; /* Physical address (0 for SAREA) */
605 unsigned long size; /* Physical size (bytes) */
606 enum drm_map_type type; /* Type of memory mapped */
607 enum drm_map_flags flags; /* Flags */
608 void *handle; /* User-space: "Handle" to pass to mmap */
609 /* Kernel-space: kernel-virtual address */
610 int mtrr; /* Boolean: MTRR used */
612 int rid; /* PCI resource ID for bus_space */
613 void *virtual; /* Kernel-space: kernel-virtual address */
614 struct resource *bsr;
616 bus_space_handle_t bsh;
617 drm_dma_handle_t *dmah;
618 TAILQ_ENTRY(drm_local_map) link;
621 typedef struct drm_local_map drm_local_map_t;
626 struct drm_map_list {
627 struct list_head head; /**< list head */
628 struct drm_hash_item hash;
629 struct drm_local_map *map; /**< mapping */
631 struct drm_master *master;
632 struct drm_mm_node *file_offset_node; /**< fake offset */
635 struct drm_vblank_info {
636 wait_queue_head_t queue; /* vblank wait queue */
637 atomic_t count; /* number of VBLANK interrupts */
638 /* (driver must alloc the right number of counters) */
639 atomic_t refcount; /* number of users of vblank interrupts */
640 u32 last; /* protected by dev->vbl_lock, used */
641 /* for wraparound handling */
642 int enabled; /* so we don't call enable more than */
643 /* once per disable */
644 int inmodeset; /* Display driver is setting mode */
647 /* location of GART table */
648 #define DRM_ATI_GART_MAIN 1
649 #define DRM_ATI_GART_FB 2
651 #define DRM_ATI_GART_PCI 1
652 #define DRM_ATI_GART_PCIE 2
653 #define DRM_ATI_GART_IGP 3
655 struct drm_ati_pcigart_info {
656 int gart_table_location;
660 dma_addr_t table_mask;
661 dma_addr_t member_mask;
662 struct drm_dma_handle *table_handle;
663 drm_local_map_t mapping;
665 struct drm_dma_handle *dmah; /* handle for ATI PCIGART table */
669 * GEM specific mm private for tracking GEM objects
672 struct drm_open_hash offset_hash; /**< User token hash table for maps */
673 struct unrhdr *idxunr;
676 struct drm_gem_object {
677 /** Reference count of this object */
678 struct kref refcount;
680 /** Handle count of this object. Each handle also holds a reference */
681 atomic_t handle_count; /* number of handles on this object */
683 /** Related drm device */
684 struct drm_device *dev;
686 /** File representing the shmem storage: filp in Linux parlance */
690 struct drm_hash_item map_list;
693 * Size of the object, in bytes. Immutable over the object's
699 * Global name for this object, starts at 1. 0 means unnamed.
700 * Access is covered by the object_name_lock in the related drm_device
705 * Memory domains. These monitor which caches contain read/write data
706 * related to the object. When transitioning from one set of domains
707 * to another, the driver is called to ensure that caches are suitably
708 * flushed and invalidated
710 uint32_t read_domains;
711 uint32_t write_domain;
714 * While validating an exec operation, the
715 * new read/write domain values are computed here.
716 * They will be transferred to the above values
717 * at the point that any cache flushing occurs
719 uint32_t pending_read_domains;
720 uint32_t pending_write_domain;
722 void *driver_private;
725 /* dma buf exported from this GEM object */
726 struct dma_buf *export_dma_buf;
728 /* dma buf attachment backing this object */
729 struct dma_buf_attachment *import_attach;
730 #endif /* DUMBBELL_WIP */
733 #include "drm_crtc.h"
735 /* per-master structure */
738 struct kref refcount; /* refcount for this master */
740 struct list_head head; /**< each minor contains a list of masters */
741 struct drm_minor *minor; /**< link back to minor we are a master for */
743 char *unique; /**< Unique identifier: e.g., busid */
744 int unique_len; /**< Length of unique field */
745 int unique_size; /**< amount allocated */
747 int blocked; /**< Blocked due to VC switch? */
749 /** \name Authentication */
751 struct drm_open_hash magiclist;
752 struct list_head magicfree;
755 struct drm_lock_data lock; /**< Information on hardware lock */
757 void *driver_priv; /**< Private structure for driver to use */
760 /* Size of ringbuffer for vblank timestamps. Just double-buffer
761 * in initial implementation.
763 #define DRM_VBLANKTIME_RBSIZE 2
765 /* Flags and return codes for get_vblank_timestamp() driver function. */
766 #define DRM_CALLED_FROM_VBLIRQ 1
767 #define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0)
768 #define DRM_VBLANKTIME_INVBL (1 << 1)
770 /* get_scanout_position() return flags */
771 #define DRM_SCANOUTPOS_VALID (1 << 0)
772 #define DRM_SCANOUTPOS_INVBL (1 << 1)
773 #define DRM_SCANOUTPOS_ACCURATE (1 << 2)
776 #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1)
779 #define upper_32_bits(n) ((u32)(((n) >> 16) >> 16))
782 int (*load)(struct drm_device *, unsigned long flags);
783 int (*use_msi)(struct drm_device *, unsigned long flags);
784 int (*firstopen)(struct drm_device *);
785 int (*open)(struct drm_device *, struct drm_file *);
786 void (*preclose)(struct drm_device *, struct drm_file *file_priv);
787 void (*postclose)(struct drm_device *, struct drm_file *);
788 void (*lastclose)(struct drm_device *);
789 int (*unload)(struct drm_device *);
790 void (*reclaim_buffers_locked)(struct drm_device *,
791 struct drm_file *file_priv);
792 int (*dma_ioctl)(struct drm_device *dev, void *data,
793 struct drm_file *file_priv);
794 void (*dma_ready)(struct drm_device *);
795 int (*dma_quiescent)(struct drm_device *);
796 int (*dma_flush_block_and_flush)(struct drm_device *, int context,
797 enum drm_lock_flags flags);
798 int (*dma_flush_unblock)(struct drm_device *, int context,
799 enum drm_lock_flags flags);
800 int (*context_ctor)(struct drm_device *dev, int context);
801 int (*context_dtor)(struct drm_device *dev, int context);
802 int (*kernel_context_switch)(struct drm_device *dev, int old,
804 int (*kernel_context_switch_unlock)(struct drm_device *dev);
805 void (*irq_preinstall)(struct drm_device *dev);
806 int (*irq_postinstall)(struct drm_device *dev);
807 void (*irq_uninstall)(struct drm_device *dev);
808 void (*irq_handler)(DRM_IRQ_ARGS);
810 u32 (*get_vblank_counter)(struct drm_device *dev, int crtc);
811 int (*enable_vblank)(struct drm_device *dev, int crtc);
812 void (*disable_vblank)(struct drm_device *dev, int crtc);
813 int (*get_scanout_position)(struct drm_device *dev, int crtc,
814 int *vpos, int *hpos);
816 int (*get_vblank_timestamp)(struct drm_device *dev, int crtc,
817 int *max_error, struct timeval *vblank_time,
820 int (*gem_init_object)(struct drm_gem_object *obj);
821 void (*gem_free_object)(struct drm_gem_object *obj);
822 int (*gem_open_object)(struct drm_gem_object *, struct drm_file *);
823 void (*gem_close_object)(struct drm_gem_object *, struct drm_file *);
825 struct cdev_pager_ops *gem_pager_ops;
827 int (*dumb_create)(struct drm_file *file_priv,
828 struct drm_device *dev, struct drm_mode_create_dumb *args);
829 int (*dumb_map_offset)(struct drm_file *file_priv,
830 struct drm_device *dev, uint32_t handle, uint64_t *offset);
831 int (*dumb_destroy)(struct drm_file *file_priv,
832 struct drm_device *dev, uint32_t handle);
834 int (*sysctl_init)(struct drm_device *dev,
835 struct sysctl_ctx_list *ctx, struct sysctl_oid *top);
836 void (*sysctl_cleanup)(struct drm_device *dev);
838 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */
841 * Called by \c drm_device_is_agp. Typically used to determine if a
842 * card is really attached to AGP or not.
844 * \param dev DRM device handle
847 * One of three values is returned depending on whether or not the
848 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
849 * (return of 1), or may or may not be AGP (return of 2).
851 int (*device_is_agp) (struct drm_device * dev);
853 drm_ioctl_desc_t *ioctls;
854 #ifdef COMPAT_FREEBSD32
855 drm_ioctl_desc_t *compat_ioctls;
856 int *compat_ioctls_nr;
864 const char *name; /* Simple driver name */
865 const char *desc; /* Longer driver name */
866 const char *date; /* Date of last major changes. */
873 * DRM minor structure. This structure represents a drm minor number.
876 int index; /**< Minor device number */
877 int type; /**< Control or render */
878 device_t kdev; /**< OS device */
879 struct drm_device *dev;
881 struct drm_master *master; /* currently active master for this node */
882 struct list_head master_list;
883 struct drm_mode_group mode_group;
886 /* mode specified on the command line */
887 struct drm_cmdline_mode {
889 bool refresh_specified;
898 enum drm_connector_force force;
902 struct drm_pending_vblank_event {
903 struct drm_pending_event base;
905 struct drm_event_vblank event;
908 /* Length for the array of resource pointers for drm_get_resource_*. */
909 #define DRM_MAX_PCI_RESOURCE 6
912 * DRM device structure. This structure represent a complete card that
913 * may contain multiple heads.
916 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */
918 uint16_t pci_device; /* PCI device id */
919 uint16_t pci_vendor; /* PCI vendor id */
920 uint16_t pci_subdevice; /* PCI subsystem device id */
921 uint16_t pci_subvendor; /* PCI subsystem vendor id */
923 char *unique; /* Unique identifier: e.g., busid */
924 int unique_len; /* Length of unique field */
925 struct cdev *devnode; /* Device number for mknod */
926 int if_version; /* Highest interface version set */
928 int flags; /* Flags to open(2) */
931 struct spinlock dma_lock; /* protects dev->dma */
932 struct lwkt_serialize irq_lock; /* protects irq condition checks */
933 struct lock dev_lock; /* protects everything else */
934 struct lock dev_struct_lock;
937 int open_count; /* Outstanding files open */
938 int buf_use; /* Buffers in use -- cannot alloc */
940 /* Performance counters */
941 unsigned long counters;
942 enum drm_stat_type types[15];
946 drm_magic_head_t magiclist[DRM_HASH_SIZE];
950 struct lock struct_mutex; /**< For others */
953 struct list_head filelist;
955 /** \name Memory management */
957 struct list_head maplist; /**< Linked list of regions */
958 struct unrhdr *map_unrhdr;
960 drm_local_map_t **context_sareas;
963 struct drm_lock_data lock; /* Information on hardware lock */
965 /* DMA queues (contexts) */
966 drm_device_dma_t *dma; /* Optional pointer for DMA support */
968 /* Context support */
969 int irq; /* Interrupt used by board */
970 int msi_enabled; /* MSI enabled */
971 int irqrid; /* Interrupt used by board */
972 struct resource *irqr; /* Resource for interrupt used by board */
973 void *irqh; /* Handle from bus_setup_intr */
975 /* Storage of resource pointers for drm_get_resource_* */
976 struct resource *pcir[DRM_MAX_PCI_RESOURCE];
977 int pcirid[DRM_MAX_PCI_RESOURCE];
984 /** \name Context support */
986 int irq_enabled; /**< True if irq handler is enabled */
987 __volatile__ long context_flag; /**< Context swapping flag */
988 int last_context; /**< Last current context */
993 struct sigio *buf_sigio; /* Processes waiting for SIGIO */
996 struct drm_sysctl_info *sysctl;
1001 struct device *dev; /**< Device structure */
1003 drm_sg_mem_t *sg; /* Scatter gather memory */
1004 unsigned long *ctx_bitmap;
1010 * At load time, disabling the vblank interrupt won't be allowed since
1011 * old clients may not call the modeset ioctl and therefore misbehave.
1012 * Once the modeset ioctl *has* been called though, we can safely
1013 * disable them when unused.
1015 int vblank_disable_allowed;
1017 wait_queue_head_t *vbl_queue; /**< VBLANK wait queue */
1018 atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */
1019 struct timeval *_vblank_time; /**< timestamp of current vblank_count (drivers must alloc right number of fields) */
1020 struct lock vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */
1021 struct lock vbl_lock;
1022 atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */
1023 u32 *last_vblank; /* protected by dev->vbl_lock, used */
1024 /* for wraparound handling */
1025 int *vblank_enabled; /* so we don't call enable more than
1027 int *vblank_inmodeset; /* Display driver is setting mode */
1028 u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */
1029 struct timer_list vblank_disable_timer;
1031 u32 max_vblank_count; /**< size of vblank counter register */
1036 struct list_head vblank_event_list;
1037 struct lock event_lock;
1039 struct drm_driver *driver;
1040 struct drm_local_map *agp_buffer_map;
1041 unsigned int agp_buffer_token;
1042 struct drm_minor *control; /**< Control node for card */
1043 struct drm_minor *primary; /**< render type primary screen head */
1045 struct drm_mode_config mode_config; /**< Current mode config */
1047 /** \name GEM information */
1049 struct lock object_name_lock;
1050 struct idr object_name_idr;
1054 void *sysctl_private;
1055 char busid_str[128];
1058 int switch_power_state;
1061 #define DRM_SWITCH_POWER_ON 0
1062 #define DRM_SWITCH_POWER_OFF 1
1063 #define DRM_SWITCH_POWER_CHANGING 2
1065 static __inline__ int drm_core_check_feature(struct drm_device *dev,
1068 return ((dev->driver->driver_features & feature) ? 1 : 0);
1072 static inline int drm_core_has_AGP(struct drm_device *dev)
1074 return drm_core_check_feature(dev, DRIVER_USE_AGP);
1077 #define drm_core_has_AGP(dev) (0)
1087 DMI_PRODUCT_VERSION,
1094 DMI_BOARD_ASSET_TAG,
1097 DMI_CHASSIS_VERSION,
1099 DMI_CHASSIS_ASSET_TAG,
1103 struct dmi_strmatch {
1108 struct dmi_system_id {
1109 int (*callback)(const struct dmi_system_id *);
1111 struct dmi_strmatch matches[4];
1113 #define DMI_MATCH(a, b) {(a), (b)}
1114 bool dmi_check_system(const struct dmi_system_id *);
1116 extern int drm_notyet_flag;
1117 extern int drm_debug;
1119 extern unsigned int drm_vblank_offdelay;
1120 extern unsigned int drm_timestamp_precision;
1121 extern unsigned int drm_timestamp_monotonic;
1123 /* Device setup support (drm_drv.c) */
1124 int drm_probe(device_t kdev, drm_pci_id_list_t *idlist);
1125 int drm_attach(device_t kdev, drm_pci_id_list_t *idlist);
1126 int drm_create_cdevs(device_t kdev);
1127 int drm_detach(device_t kdev);
1128 d_ioctl_t drm_ioctl;
1130 d_close_t drm_close;
1132 d_kqfilter_t drm_kqfilter;
1134 d_mmap_single_t drm_mmap_single;
1135 extern drm_local_map_t *drm_getsarea(struct drm_device *dev);
1137 void drm_cdevpriv_dtor(void *cd);
1139 void drm_event_wakeup(struct drm_pending_event *e);
1141 int drm_add_busid_modesetting(struct drm_device *dev,
1142 struct sysctl_ctx_list *ctx, struct sysctl_oid *top);
1144 /* File operations helpers (drm_fops.c) */
1145 extern int drm_open_helper(struct cdev *kdev, int flags, int fmt,
1147 struct drm_device *dev,
1149 extern struct drm_file *drm_find_file_by_proc(struct drm_device *dev,
1153 extern int drm_gem_prime_handle_to_fd(struct drm_device *dev,
1154 struct drm_file *file_priv, uint32_t handle, uint32_t flags,
1156 extern int drm_gem_prime_fd_to_handle(struct drm_device *dev,
1157 struct drm_file *file_priv, int prime_fd, uint32_t *handle);
1159 extern int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data,
1160 struct drm_file *file_priv);
1161 extern int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data,
1162 struct drm_file *file_priv);
1169 extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, vm_page_t *pages,
1170 dma_addr_t *addrs, int max_pages);
1171 #endif /* DUMBBELL_WIP */
1172 extern struct sg_table *drm_prime_pages_to_sg(vm_page_t *pages, int nr_pages);
1173 extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg);
1176 void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv);
1177 void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv);
1178 int drm_prime_add_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t handle);
1179 int drm_prime_lookup_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t *handle);
1180 void drm_prime_remove_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf);
1182 int drm_prime_add_dma_buf(struct drm_device *dev, struct drm_gem_object *obj);
1183 int drm_prime_lookup_obj(struct drm_device *dev, struct dma_buf *buf,
1184 struct drm_gem_object **obj);
1185 #endif /* DUMBBELL_WIP */
1187 /* Memory management support (drm_memory.c) */
1188 void drm_mem_init(void);
1189 void drm_mem_uninit(void);
1190 void *drm_ioremap_wc(struct drm_device *dev, drm_local_map_t *map);
1191 void *drm_ioremap(struct drm_device *dev, drm_local_map_t *map);
1192 void drm_ioremapfree(drm_local_map_t *map);
1193 int drm_mtrr_add(unsigned long offset, size_t size, int flags);
1194 int drm_mtrr_del(int handle, unsigned long offset, size_t size, int flags);
1196 int drm_ctxbitmap_init(struct drm_device *dev);
1197 void drm_ctxbitmap_cleanup(struct drm_device *dev);
1198 void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
1199 int drm_ctxbitmap_next(struct drm_device *dev);
1201 /* Locking IOCTL support (drm_lock.c) */
1202 int drm_lock_take(struct drm_lock_data *lock_data,
1203 unsigned int context);
1204 int drm_lock_transfer(struct drm_lock_data *lock_data,
1205 unsigned int context);
1206 int drm_lock_free(struct drm_lock_data *lock_data,
1207 unsigned int context);
1210 * These are exported to drivers so that they can implement fencing using
1211 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
1214 unsigned long drm_get_resource_start(struct drm_device *dev,
1215 unsigned int resource);
1216 unsigned long drm_get_resource_len(struct drm_device *dev,
1217 unsigned int resource);
1218 void drm_rmmap(struct drm_device *dev, drm_local_map_t *map);
1219 int drm_order(unsigned long size);
1220 int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc *request);
1221 int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc *request);
1222 extern int drm_addmap(struct drm_device *dev, resource_size_t offset,
1223 unsigned int size, enum drm_map_type type,
1224 enum drm_map_flags flags, struct drm_local_map **map_ptr);
1226 /* DMA support (drm_dma.c) */
1227 int drm_dma_setup(struct drm_device *dev);
1228 void drm_dma_takedown(struct drm_device *dev);
1229 void drm_free_buffer(struct drm_device *dev, drm_buf_t *buf);
1230 void drm_reclaim_buffers(struct drm_device *dev, struct drm_file *file_priv);
1231 #define drm_core_reclaim_buffers drm_reclaim_buffers
1233 /* IRQ support (drm_irq.h) */
1234 int drm_irq_install(struct drm_device *dev);
1235 int drm_irq_uninstall(struct drm_device *dev);
1236 void drm_driver_irq_preinstall(struct drm_device *dev);
1237 void drm_driver_irq_postinstall(struct drm_device *dev);
1238 void drm_driver_irq_uninstall(struct drm_device *dev);
1240 void drm_vblank_pre_modeset(struct drm_device *dev, int crtc);
1241 void drm_vblank_post_modeset(struct drm_device *dev, int crtc);
1242 int drm_modeset_ctl(struct drm_device *dev, void *data,
1243 struct drm_file *file_priv);
1245 extern int drm_vblank_init(struct drm_device *dev, int num_crtcs);
1246 extern int drm_wait_vblank(struct drm_device *dev, void *data,
1247 struct drm_file *filp);
1248 extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq);
1249 extern u32 drm_vblank_count(struct drm_device *dev, int crtc);
1250 extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc,
1251 struct timeval *vblanktime);
1252 extern void drm_send_vblank_event(struct drm_device *dev, int crtc,
1253 struct drm_pending_vblank_event *e);
1254 extern bool drm_handle_vblank(struct drm_device *dev, int crtc);
1255 void drm_handle_vblank_events(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 void drm_vblank_off(struct drm_device *dev, int crtc);
1259 extern void drm_vblank_cleanup(struct drm_device *dev);
1260 extern u32 drm_get_last_vbltimestamp(struct drm_device *dev, int crtc,
1261 struct timeval *tvblank, unsigned flags);
1262 extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev,
1263 int crtc, int *max_error,
1264 struct timeval *vblank_time,
1266 struct drm_crtc *refcrtc);
1267 extern void drm_calc_timestamping_constants(struct drm_crtc *crtc);
1269 /* AGP/PCI Express/GART support (drm_agpsupport.c) */
1270 int drm_device_is_agp(struct drm_device *dev);
1271 int drm_device_is_pcie(struct drm_device *dev);
1272 drm_agp_head_t *drm_agp_init(void);
1273 int drm_agp_acquire(struct drm_device *dev);
1274 int drm_agp_release(struct drm_device *dev);
1275 int drm_agp_info(struct drm_device * dev, struct drm_agp_info *info);
1276 int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode);
1277 void *drm_agp_allocate_memory(size_t pages, u32 type);
1278 int drm_agp_free_memory(void *handle);
1279 int drm_agp_bind_memory(void *handle, off_t start);
1280 int drm_agp_unbind_memory(void *handle);
1281 int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request);
1282 int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request);
1283 int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
1284 int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request);
1286 /* Scatter Gather Support (drm_scatter.c) */
1287 void drm_sg_cleanup(drm_sg_mem_t *entry);
1288 int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request);
1290 /* sysctl support (drm_sysctl.h) */
1291 extern int drm_sysctl_init(struct drm_device *dev);
1292 extern int drm_sysctl_cleanup(struct drm_device *dev);
1294 /* ATI PCIGART support (ati_pcigart.c) */
1295 int drm_ati_pcigart_init(struct drm_device *dev,
1296 struct drm_ati_pcigart_info *gart_info);
1297 int drm_ati_pcigart_cleanup(struct drm_device *dev,
1298 struct drm_ati_pcigart_info *gart_info);
1300 /* Cache management (drm_memory.c) */
1301 void drm_clflush_pages(vm_page_t *pages, unsigned long num_pages);
1303 /* Locking IOCTL support (drm_drv.c) */
1304 int drm_lock(struct drm_device *dev, void *data,
1305 struct drm_file *file_priv);
1306 int drm_unlock(struct drm_device *dev, void *data,
1307 struct drm_file *file_priv);
1308 int drm_version(struct drm_device *dev, void *data,
1309 struct drm_file *file_priv);
1310 int drm_setversion(struct drm_device *dev, void *data,
1311 struct drm_file *file_priv);
1313 /* Misc. IOCTL support (drm_ioctl.c) */
1314 int drm_irq_by_busid(struct drm_device *dev, void *data,
1315 struct drm_file *file_priv);
1316 int drm_getunique(struct drm_device *dev, void *data,
1317 struct drm_file *file_priv);
1318 int drm_setunique(struct drm_device *dev, void *data,
1319 struct drm_file *file_priv);
1320 int drm_getmap(struct drm_device *dev, void *data,
1321 struct drm_file *file_priv);
1322 int drm_getclient(struct drm_device *dev, void *data,
1323 struct drm_file *file_priv);
1324 int drm_getstats(struct drm_device *dev, void *data,
1325 struct drm_file *file_priv);
1326 int drm_getcap(struct drm_device *dev, void *data,
1327 struct drm_file *file_priv);
1328 int drm_noop(struct drm_device *dev, void *data,
1329 struct drm_file *file_priv);
1331 /* Context IOCTL support (drm_context.c) */
1332 int drm_resctx(struct drm_device *dev, void *data,
1333 struct drm_file *file_priv);
1334 int drm_addctx(struct drm_device *dev, void *data,
1335 struct drm_file *file_priv);
1336 int drm_modctx(struct drm_device *dev, void *data,
1337 struct drm_file *file_priv);
1338 int drm_getctx(struct drm_device *dev, void *data,
1339 struct drm_file *file_priv);
1340 int drm_switchctx(struct drm_device *dev, void *data,
1341 struct drm_file *file_priv);
1342 int drm_newctx(struct drm_device *dev, void *data,
1343 struct drm_file *file_priv);
1344 int drm_rmctx(struct drm_device *dev, void *data,
1345 struct drm_file *file_priv);
1346 int drm_setsareactx(struct drm_device *dev, void *data,
1347 struct drm_file *file_priv);
1348 int drm_getsareactx(struct drm_device *dev, void *data,
1349 struct drm_file *file_priv);
1351 /* Authentication IOCTL support (drm_auth.c) */
1352 int drm_getmagic(struct drm_device *dev, void *data,
1353 struct drm_file *file_priv);
1354 int drm_authmagic(struct drm_device *dev, void *data,
1355 struct drm_file *file_priv);
1357 /* Buffer management support (drm_bufs.c) */
1358 int drm_addmap_ioctl(struct drm_device *dev, void *data,
1359 struct drm_file *file_priv);
1360 int drm_rmmap_ioctl(struct drm_device *dev, void *data,
1361 struct drm_file *file_priv);
1362 int drm_addbufs(struct drm_device *dev, void *data,
1363 struct drm_file *file_priv);
1364 int drm_infobufs(struct drm_device *dev, void *data,
1365 struct drm_file *file_priv);
1366 int drm_markbufs(struct drm_device *dev, void *data,
1367 struct drm_file *file_priv);
1368 int drm_freebufs(struct drm_device *dev, void *data,
1369 struct drm_file *file_priv);
1370 int drm_mapbufs(struct drm_device *dev, void *data,
1371 struct drm_file *file_priv);
1373 /* DMA support (drm_dma.c) */
1374 int drm_dma(struct drm_device *dev, void *data, struct drm_file *file_priv);
1376 /* IRQ support (drm_irq.c) */
1377 int drm_control(struct drm_device *dev, void *data,
1378 struct drm_file *file_priv);
1380 /* AGP/GART support (drm_agpsupport.c) */
1381 int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
1382 struct drm_file *file_priv);
1383 int drm_agp_release_ioctl(struct drm_device *dev, void *data,
1384 struct drm_file *file_priv);
1385 int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
1386 struct drm_file *file_priv);
1387 int drm_agp_info_ioctl(struct drm_device *dev, void *data,
1388 struct drm_file *file_priv);
1389 int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
1390 struct drm_file *file_priv);
1391 int drm_agp_free_ioctl(struct drm_device *dev, void *data,
1392 struct drm_file *file_priv);
1393 int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
1394 struct drm_file *file_priv);
1395 int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
1396 struct drm_file *file_priv);
1398 /* Stub support (drm_stub.h) */
1399 extern int drm_setmaster_ioctl(struct drm_device *dev, void *data,
1400 struct drm_file *file_priv);
1401 extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
1402 struct drm_file *file_priv);
1404 /* Scatter Gather Support (drm_scatter.c) */
1405 int drm_sg_alloc_ioctl(struct drm_device *dev, void *data,
1406 struct drm_file *file_priv);
1407 int drm_sg_free(struct drm_device *dev, void *data,
1408 struct drm_file *file_priv);
1410 /* consistent PCI memory functions (drm_pci.c) */
1411 drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
1412 size_t align, dma_addr_t maxaddr);
1413 void drm_pci_free(struct drm_device *dev, drm_dma_handle_t *dmah);
1415 /* sysfs support (drm_sysfs.c) */
1416 extern char *drm_get_connector_status_name(enum drm_connector_status status);
1418 /* Graphics Execution Manager library functions (drm_gem.c) */
1419 int drm_gem_init(struct drm_device *dev);
1420 void drm_gem_destroy(struct drm_device *dev);
1421 void drm_gem_object_release(struct drm_gem_object *obj);
1422 void drm_gem_object_free(struct kref *kref);
1424 int drm_gem_close_ioctl(struct drm_device *dev, void *data,
1425 struct drm_file *file_priv);
1426 int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
1427 struct drm_file *file_priv);
1428 int drm_gem_open_ioctl(struct drm_device *dev, void *data,
1429 struct drm_file *file_priv);
1430 void drm_gem_object_handle_free(struct drm_gem_object *obj);
1432 #include <drm/drm_global.h>
1435 drm_gem_object_reference(struct drm_gem_object *obj)
1437 kref_get(&obj->refcount);
1441 drm_gem_object_unreference(struct drm_gem_object *obj)
1444 kref_put(&obj->refcount, drm_gem_object_free);
1448 drm_gem_object_unreference_unlocked(struct drm_gem_object *obj)
1451 struct drm_device *dev = obj->dev;
1453 kref_put(&obj->refcount, drm_gem_object_free);
1458 int drm_gem_handle_create(struct drm_file *file_priv,
1459 struct drm_gem_object *obj,
1461 int drm_gem_handle_delete(struct drm_file *filp, u32 handle);
1464 drm_gem_object_handle_reference(struct drm_gem_object *obj)
1466 drm_gem_object_reference(obj);
1467 atomic_inc(&obj->handle_count);
1471 drm_gem_object_handle_unreference(struct drm_gem_object *obj)
1476 if (atomic_read(&obj->handle_count) == 0)
1479 * Must bump handle count first as this may be the last
1480 * ref, in which case the object would disappear before we
1481 * checked for a name
1483 if (atomic_dec_and_test(&obj->handle_count))
1484 drm_gem_object_handle_free(obj);
1485 drm_gem_object_unreference(obj);
1489 drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj)
1494 if (atomic_read(&obj->handle_count) == 0)
1498 * Must bump handle count first as this may be the last
1499 * ref, in which case the object would disappear before we
1500 * checked for a name
1503 if (atomic_dec_and_test(&obj->handle_count))
1504 drm_gem_object_handle_free(obj);
1505 drm_gem_object_unreference_unlocked(obj);
1508 int drm_gem_object_init(struct drm_device *dev, struct drm_gem_object *obj,
1510 int drm_gem_private_object_init(struct drm_device *dev,
1511 struct drm_gem_object *obj, size_t size);
1512 struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev,
1514 struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev,
1515 struct drm_file *file_priv, uint32_t handle);
1517 void drm_gem_open(struct drm_device *dev, struct drm_file *file_priv);
1518 void drm_gem_release(struct drm_device *dev, struct drm_file *file_priv);
1520 int drm_gem_create_mmap_offset(struct drm_gem_object *obj);
1521 void drm_gem_free_mmap_offset(struct drm_gem_object *obj);
1522 int drm_gem_mmap_single(struct drm_device *dev, vm_ooffset_t *offset,
1523 vm_size_t size, struct vm_object **obj_res, int nprot);
1524 void drm_gem_pager_dtr(void *obj);
1526 struct ttm_bo_device;
1527 int ttm_bo_mmap_single(struct ttm_bo_device *bdev, vm_ooffset_t *offset,
1528 vm_size_t size, struct vm_object **obj_res, int nprot);
1529 struct ttm_buffer_object;
1530 void ttm_bo_release_mmap(struct ttm_buffer_object *bo);
1532 void drm_device_lock_mtx(struct drm_device *dev);
1533 void drm_device_unlock_mtx(struct drm_device *dev);
1534 int drm_device_sleep_mtx(struct drm_device *dev, void *chan, int flags,
1535 const char *msg, int timeout);
1536 void drm_device_assert_mtx_locked(struct drm_device *dev);
1537 void drm_device_assert_mtx_unlocked(struct drm_device *dev);
1539 void drm_device_lock_struct(struct drm_device *dev);
1540 void drm_device_unlock_struct(struct drm_device *dev);
1541 int drm_device_sleep_struct(struct drm_device *dev, void *chan, int flags,
1542 const char *msg, int timeout);
1543 void drm_device_assert_struct_locked(struct drm_device *dev);
1544 void drm_device_assert_struct_unlocked(struct drm_device *dev);
1546 void drm_compat_locking_init(struct drm_device *dev);
1547 void drm_sleep_locking_init(struct drm_device *dev);
1550 bool drm_mode_parse_command_line_for_connector(const char *mode_option,
1551 struct drm_connector *connector, struct drm_cmdline_mode *mode);
1552 struct drm_display_mode *drm_mode_create_from_cmdline_mode(
1553 struct drm_device *dev, struct drm_cmdline_mode *cmd);
1555 /* Inline replacements for drm_alloc and friends */
1556 static __inline__ void *
1557 drm_alloc(size_t size, struct malloc_type *area)
1559 return kmalloc(size, area, M_NOWAIT);
1562 static __inline__ void *
1563 drm_calloc(size_t nmemb, size_t size, struct malloc_type *area)
1565 return kmalloc(size * nmemb, area, M_NOWAIT | M_ZERO);
1568 static __inline__ void *
1569 drm_realloc(void *oldpt, size_t oldsize, size_t size,
1570 struct malloc_type *area)
1573 res = krealloc(oldpt, size, area, M_NOWAIT);
1574 if (res == NULL && oldpt != NULL)
1579 static __inline__ void
1580 drm_free(void *pt, struct malloc_type *area)
1586 /* Inline replacements for DRM_IOREMAP macros */
1587 static __inline__ void
1588 drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev)
1590 map->virtual = drm_ioremap_wc(dev, map);
1592 static __inline__ void
1593 drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev)
1595 map->virtual = drm_ioremap(dev, map);
1597 static __inline__ void
1598 drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev)
1600 if ( map->virtual && map->size )
1601 drm_ioremapfree(map);
1604 static __inline__ struct drm_local_map *
1605 drm_core_findmap(struct drm_device *dev, unsigned long offset)
1607 struct drm_map_list *_entry;
1609 list_for_each_entry(_entry, &dev->maplist, head) {
1610 if (offset == (unsigned long)_entry->map->handle)
1616 static __inline__ void drm_core_dropmap(struct drm_map *map)
1620 /* FreeBSD compatibility macros */
1621 #define PROC_LOCK(p)
1622 #define PROC_UNLOCK(p)
1624 #define VM_OBJECT_RLOCK(object) VM_OBJECT_LOCK(object)
1625 #define VM_OBJECT_RUNLOCK(object) VM_OBJECT_UNLOCK(object)
1626 #define VM_OBJECT_WLOCK(object) VM_OBJECT_LOCK(object)
1627 #define VM_OBJECT_WUNLOCK(object) VM_OBJECT_UNLOCK(object)
1629 #define CTR2(one,two,three,four)
1631 #define DRM_PCIE_SPEED_25 1
1632 #define DRM_PCIE_SPEED_50 2
1633 #define DRM_PCIE_SPEED_80 4
1635 extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask);
1637 #define drm_can_sleep() (DRM_HZ & 1)
1639 #endif /* __KERNEL__ */
1640 #endif /* _DRM_P_H_ */