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/kernel.h>
99 #include <linux/kref.h>
100 #include <linux/list.h>
101 #include <linux/types.h>
106 #include "drm_os_freebsd.h"
107 #include "drm_hashtab.h"
112 #define DRM_DEBUG_DEFAULT_ON 1
113 #endif /* DRM_DEBUG */
115 #define DRM_DEBUGBITS_DEBUG 0x1
116 #define DRM_DEBUGBITS_KMS 0x2
117 #define DRM_DEBUGBITS_FAILED_IOCTL 0x4
122 /***********************************************************************/
123 /** \name DRM template customization defaults */
126 /* driver capabilities and requirements mask */
127 #define DRIVER_USE_AGP 0x1
128 #define DRIVER_REQUIRE_AGP 0x2
129 #define DRIVER_USE_MTRR 0x4
130 #define DRIVER_PCI_DMA 0x8
131 #define DRIVER_SG 0x10
132 #define DRIVER_HAVE_DMA 0x20
133 #define DRIVER_HAVE_IRQ 0x40
134 #define DRIVER_IRQ_SHARED 0x80
135 #define DRIVER_IRQ_VBL 0x100
136 #define DRIVER_DMA_QUEUE 0x200
137 #define DRIVER_FB_DMA 0x400
138 #define DRIVER_IRQ_VBL2 0x800
139 #define DRIVER_GEM 0x1000
140 #define DRIVER_MODESET 0x2000
141 #define DRIVER_PRIME 0x4000
142 #define DRIVER_LOCKLESS_IRQ 0x8000
145 #define DRM_HASH_SIZE 16 /* Size of key hash table */
146 #define DRM_KERNEL_CONTEXT 0 /* Change drm_resctx if changed */
147 #define DRM_RESERVED_CONTEXTS 1 /* Change drm_resctx if changed */
149 #define DRM_GEM_MAPPING_MASK (3ULL << 62)
150 #define DRM_GEM_MAPPING_KEY (2ULL << 62) /* Non-canonical address form */
151 #define DRM_GEM_MAX_IDX 0x3fffff
152 #define DRM_GEM_MAPPING_IDX(o) (((o) >> 40) & DRM_GEM_MAX_IDX)
153 #define DRM_GEM_MAPPING_OFF(i) (((uint64_t)(i)) << 40)
154 #define DRM_GEM_MAPPING_MAPOFF(o) \
155 ((o) & ~(DRM_GEM_MAPPING_OFF(DRM_GEM_MAX_IDX) | DRM_GEM_MAPPING_KEY))
157 MALLOC_DECLARE(DRM_MEM_DMA);
158 MALLOC_DECLARE(DRM_MEM_SAREA);
159 MALLOC_DECLARE(DRM_MEM_DRIVER);
160 MALLOC_DECLARE(DRM_MEM_MAGIC);
161 MALLOC_DECLARE(DRM_MEM_MAPS);
162 MALLOC_DECLARE(DRM_MEM_BUFS);
163 MALLOC_DECLARE(DRM_MEM_SEGS);
164 MALLOC_DECLARE(DRM_MEM_PAGES);
165 MALLOC_DECLARE(DRM_MEM_FILES);
166 MALLOC_DECLARE(DRM_MEM_BUFLISTS);
167 MALLOC_DECLARE(DRM_MEM_AGPLISTS);
168 MALLOC_DECLARE(DRM_MEM_CTXBITMAP);
169 MALLOC_DECLARE(DRM_MEM_SGLISTS);
170 MALLOC_DECLARE(DRM_MEM_MM);
171 MALLOC_DECLARE(DRM_MEM_HASHTAB);
172 MALLOC_DECLARE(DRM_MEM_KMS);
174 SYSCTL_DECL(_hw_drm);
176 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
178 /***********************************************************************/
179 /** \name Internal types and structures */
182 #define DRM_ARRAY_SIZE(x) NELEM(x)
183 #define DRM_MIN(a,b) ((a)<(b)?(a):(b))
184 #define DRM_MAX(a,b) ((a)>(b)?(a):(b))
186 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
188 #define __OS_HAS_AGP 1
190 #define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP)
191 #define DRM_DEV_UID 0
192 #define DRM_DEV_GID 0
194 #define wait_queue_head_t atomic_t
195 #define DRM_WAKEUP(w) wakeup((void *)w)
196 #define DRM_WAKEUP_INT(w) wakeup(w)
197 #define DRM_INIT_WAITQUEUE(queue) do {(void)(queue);} while (0)
199 #define DRM_CURPROC curthread
200 #define DRM_STRUCTPROC struct thread
201 #define DRM_CURRENTPID curthread->td_proc->p_pid
202 #define DRM_LOCK(dev) lockmgr(&(dev)->dev_struct_lock, LK_EXCLUSIVE)
203 #define DRM_UNLOCK(dev) lockmgr(&(dev)->dev_struct_lock, LK_RELEASE)
204 #define DRM_LOCK_SLEEP(dev, chan, flags, msg, timeout) \
205 (lksleep((chan), &(dev)->dev_struct_lock, (flags), (msg), (timeout)))
206 #if defined(INVARIANTS)
207 #define DRM_LOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->dev_struct_lock, curthread) != 0);
208 #define DRM_UNLOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->dev_struct_lock, curthread) == 0);
210 #define DRM_LOCK_ASSERT(d)
211 #define DRM_UNLOCK_ASSERT(d)
214 #define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS)
216 #define DRM_IRQ_ARGS void *arg
217 typedef void irqreturn_t;
218 #define IRQ_HANDLED /* nothing */
219 #define IRQ_NONE /* nothing */
226 #define DRM_AGP_MEM struct agp_memory_info
228 #define drm_get_device_from_kdev(_kdev) (_kdev->si_drv1)
230 #define PAGE_ALIGN(addr) round_page(addr)
231 /* DRM_SUSER returns true if the user is superuser */
232 #define DRM_SUSER(p) (priv_check(p, PRIV_DRIVER) == 0)
233 #define DRM_AGP_FIND_DEVICE() agp_find_device()
234 #define DRM_MTRR_WC MDF_WRITECOMBINE
235 #define jiffies ticks
236 #define jiffies_to_msecs(x) (((int64_t)(x)) * 1000 / hz)
237 #define msecs_to_jiffies(x) (((int64_t)(x)) * hz / 1000)
238 #define time_after(a,b) ((long)(b) - (long)(a) < 0)
239 #define time_after_eq(a,b) ((long)(b) - (long)(a) <= 0)
241 /* DRM_READMEMORYBARRIER() prevents reordering of reads.
242 * DRM_WRITEMEMORYBARRIER() prevents reordering of writes.
243 * DRM_MEMORYBARRIER() prevents reordering of reads and writes.
245 #define DRM_READMEMORYBARRIER() cpu_lfence()
246 #define DRM_WRITEMEMORYBARRIER() cpu_sfence()
247 #define DRM_MEMORYBARRIER() cpu_mfence()
249 #define DRM_READ8(map, offset) \
250 *(volatile u_int8_t *)(((vm_offset_t)(map)->virtual) + \
251 (vm_offset_t)(offset))
252 #define DRM_READ16(map, offset) \
253 le16toh(*(volatile u_int16_t *)(((vm_offset_t)(map)->virtual) + \
254 (vm_offset_t)(offset)))
255 #define DRM_READ32(map, offset) \
256 le32toh(*(volatile u_int32_t *)(((vm_offset_t)(map)->virtual) + \
257 (vm_offset_t)(offset)))
258 #define DRM_READ64(map, offset) \
259 le64toh(*(volatile u_int64_t *)(((vm_offset_t)(map)->virtual) + \
260 (vm_offset_t)(offset)))
261 #define DRM_WRITE8(map, offset, val) \
262 *(volatile u_int8_t *)(((vm_offset_t)(map)->virtual) + \
263 (vm_offset_t)(offset)) = val
264 #define DRM_WRITE16(map, offset, val) \
265 *(volatile u_int16_t *)(((vm_offset_t)(map)->virtual) + \
266 (vm_offset_t)(offset)) = htole16(val)
267 #define DRM_WRITE32(map, offset, val) \
268 *(volatile u_int32_t *)(((vm_offset_t)(map)->virtual) + \
269 (vm_offset_t)(offset)) = htole32(val)
270 #define DRM_WRITE64(map, offset, val) \
271 *(volatile u_int64_t *)(((vm_offset_t)(map)->virtual) + \
272 (vm_offset_t)(offset)) = htole64(val)
274 #define DRM_VERIFYAREA_READ( uaddr, size ) \
275 (!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ))
277 #define DRM_COPY_TO_USER(user, kern, size) \
278 copyout(kern, user, size)
279 #define DRM_COPY_FROM_USER(kern, user, size) \
280 copyin(user, kern, size)
281 #define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \
282 copyin(arg2, arg1, arg3)
283 #define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \
284 copyout(arg2, arg1, arg3)
285 #define DRM_GET_USER_UNCHECKED(val, uaddr) \
286 ((val) = fuword32(uaddr), 0)
288 #define drm_can_sleep() (DRM_HZ & 1)
290 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
291 (_map) = (_dev)->context_sareas[_ctx]; \
294 #define LOCK_TEST_WITH_RETURN(dev, file_priv) \
296 if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) || \
297 dev->lock.file_priv != file_priv) { \
298 DRM_ERROR("%s called without lock held\n", \
304 /* Returns -errno to shared code */
305 #define DRM_WAIT_ON( ret, queue, timeout, condition ) \
306 for ( ret = 0 ; !ret && !(condition) ; ) { \
308 lwkt_serialize_enter(&dev->irq_lock); \
309 if (!(condition)) { \
310 tsleep_interlock(&(queue), PCATCH); \
311 lwkt_serialize_exit(&dev->irq_lock); \
312 ret = -tsleep(&(queue), PCATCH | PINTERLOCKED, \
313 "drmwtq", (timeout)); \
315 lwkt_serialize_exit(&dev->irq_lock); \
321 vm_page_unhold_pages(vm_page_t *ma, int count)
325 for (i = 0; i < count; i++)
326 vm_page_unhold(ma[i]);
329 int vm_phys_fictitious_reg_range(vm_paddr_t start, vm_paddr_t end,
330 vm_memattr_t memattr);
331 void vm_phys_fictitious_unreg_range(vm_paddr_t start, vm_paddr_t end);
332 vm_page_t vm_phys_fictitious_to_vm_page(vm_paddr_t pa);
334 #define DRM_ERROR(fmt, ...) \
335 kprintf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \
336 DRM_CURRENTPID, __func__ , ##__VA_ARGS__)
338 #define DRM_INFO(fmt, ...) kprintf("info: [" DRM_NAME "] " fmt , ##__VA_ARGS__)
340 #define DRM_DEBUG(fmt, ...) do { \
341 if ((drm_debug_flag & DRM_DEBUGBITS_DEBUG) != 0) \
342 kprintf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \
343 __func__ , ##__VA_ARGS__); \
346 #define DRM_DEBUG_KMS(fmt, ...) do { \
347 if ((drm_debug_flag & DRM_DEBUGBITS_KMS) != 0) \
348 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\
349 __func__ , ##__VA_ARGS__); \
352 #define DRM_DEBUG_DRIVER(fmt, ...) do { \
353 if ((drm_debug_flag & DRM_DEBUGBITS_KMS) != 0) \
354 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\
355 __func__ , ##__VA_ARGS__); \
358 #define dev_err(dev, fmt, ...) \
359 device_printf((dev), "error: " fmt, ## __VA_ARGS__)
360 #define dev_warn(dev, fmt, ...) \
361 device_printf((dev), "warning: " fmt, ## __VA_ARGS__)
362 #define dev_info(dev, fmt, ...) \
363 device_printf((dev), "info: " fmt, ## __VA_ARGS__)
364 #define dev_dbg(dev, fmt, ...) do { \
365 if ((drm_debug_flag& DRM_DEBUGBITS_KMS) != 0) { \
366 device_printf((dev), "debug: " fmt, ## __VA_ARGS__); \
370 typedef struct drm_pci_id_list
378 struct drm_msi_blacklist_entry
385 #define DRM_MASTER 0x2
386 #define DRM_ROOT_ONLY 0x4
387 #define DRM_CONTROL_ALLOW 0x8
388 #define DRM_UNLOCKED 0x10
390 typedef struct drm_ioctl_desc {
392 int (*func)(struct drm_device *dev, void *data,
393 struct drm_file *file_priv);
395 unsigned int cmd_drv;
399 * Creates a driver or general drm_ioctl_desc array entry for the given
400 * ioctl, for use by drm_ioctl().
402 #define DRM_IOCTL_DEF(ioctl, func, flags) \
403 [DRM_IOCTL_NR(ioctl)] = {ioctl, func, flags}
405 #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \
406 [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl}
408 typedef struct drm_magic_entry {
410 struct drm_file *priv;
411 struct drm_magic_entry *next;
414 typedef struct drm_magic_head {
415 struct drm_magic_entry *head;
416 struct drm_magic_entry *tail;
419 typedef struct drm_buf {
420 int idx; /**< Index into master buflist */
421 int total; /**< Buffer size */
422 int order; /**< log-base-2(total) */
423 int used; /**< Amount of buffer in use (for DMA) */
424 unsigned long offset; /**< Byte offset (used internally) */
425 void *address; /**< Address of buffer */
426 unsigned long bus_address; /**< Bus address of buffer */
427 struct drm_buf *next; /**< Kernel-only: used for free list */
428 __volatile__ int waiting; /**< On kernel DMA queue */
429 __volatile__ int pending; /**< On hardware DMA queue */
430 struct drm_file *file_priv; /**< Private of holding file descr */
431 int context; /**< Kernel queue for this buffer */
432 int while_locked; /**< Dispatch this buffer while locked */
440 } list; /**< Which list we're on */
442 int dev_priv_size; /**< Size of buffer private storage */
443 void *dev_private; /**< Per-buffer private storage */
446 typedef struct drm_freelist {
447 int initialized; /* Freelist in use */
448 atomic_t count; /* Number of free buffers */
449 drm_buf_t *next; /* End pointer */
451 int low_mark; /* Low water mark */
452 int high_mark; /* High water mark */
455 typedef struct drm_dma_handle {
462 typedef struct drm_buf_entry {
467 drm_dma_handle_t **seglist;
470 drm_freelist_t freelist;
473 /* Event queued up for userspace to read */
474 struct drm_pending_event {
475 struct drm_event *event;
476 struct list_head link;
477 struct drm_file *file_priv;
478 pid_t pid; /* pid of requester, no guarantee it's valid by the time
479 we deliver the event, for tracing only */
480 void (*destroy)(struct drm_pending_event *event);
483 /* initial implementaton using a linked list - todo hashtab */
484 struct drm_prime_file_private {
485 struct list_head head;
488 #endif /* DUMBBELL_WIP */
491 typedef TAILQ_HEAD(drm_file_list, drm_file) drm_file_list_t;
493 TAILQ_ENTRY(drm_file) link;
494 struct drm_device *dev;
500 unsigned long ioctl_count;
502 /** Mapping of mm object handles to object pointers. */
503 struct idr object_idr;
504 /** Lock for synchronization of access to object_idr. */
505 struct spinlock table_lock;
510 struct drm_master *masterp;
512 struct list_head fbs;
514 struct list_head event_list;
517 struct drm_prime_file_private prime;
520 typedef struct drm_lock_data {
521 struct drm_hw_lock *hw_lock; /* Hardware lock */
522 struct drm_file *file_priv; /* Unique identifier of holding process (NULL is kernel)*/
523 int lock_queue; /* Queue of blocked processes */
524 unsigned long lock_time; /* Time of last lock in jiffies */
527 /* This structure, in the struct drm_device, is always initialized while the
529 * is open. dev->dma_lock protects the incrementing of dev->buf_use, which
530 * when set marks that no further bufs may be allocated until device teardown
531 * occurs (when the last open of the device has closed). The high/low
532 * watermarks of bufs are only touched by the X Server, and thus not
533 * concurrently accessed, so no locking is needed.
535 typedef struct drm_device_dma {
537 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */
538 int buf_count; /**< total number of buffers */
539 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */
541 int page_count; /**< number of pages */
542 unsigned long *pagelist; /**< page list */
543 unsigned long byte_count;
545 _DRM_DMA_USE_AGP = 0x01,
546 _DRM_DMA_USE_SG = 0x02,
547 _DRM_DMA_USE_FB = 0x04,
548 _DRM_DMA_USE_PCI_RO = 0x08
553 typedef struct drm_agp_mem {
555 unsigned long bound; /* address */
557 struct drm_agp_mem *prev;
558 struct drm_agp_mem *next;
561 typedef struct drm_agp_head {
563 struct agp_info agp_info;
565 drm_agp_mem_t *memory;
571 int cant_use_aperture;
572 unsigned long page_mask;
575 typedef struct drm_sg_mem {
581 #define DRM_MAP_HANDLE_BITS (sizeof(void *) == 4 ? 4 : 24)
582 #define DRM_MAP_HANDLE_SHIFT (sizeof(void *) * 8 - DRM_MAP_HANDLE_BITS)
585 * Kernel side of a mapping
587 struct drm_local_map {
588 unsigned long offset; /* Physical address (0 for SAREA) */
589 unsigned long size; /* Physical size (bytes) */
590 enum drm_map_type type; /* Type of memory mapped */
591 enum drm_map_flags flags; /* Flags */
592 void *handle; /* User-space: "Handle" to pass to mmap */
593 /* Kernel-space: kernel-virtual address */
594 int mtrr; /* Boolean: MTRR used */
596 int rid; /* PCI resource ID for bus_space */
597 void *virtual; /* Kernel-space: kernel-virtual address */
598 struct resource *bsr;
600 bus_space_handle_t bsh;
601 drm_dma_handle_t *dmah;
602 TAILQ_ENTRY(drm_local_map) link;
605 typedef struct drm_local_map drm_local_map_t;
610 struct drm_map_list {
611 struct list_head head; /**< list head */
612 struct drm_hash_item hash;
613 struct drm_local_map *map; /**< mapping */
615 struct drm_master *master;
616 struct drm_mm_node *file_offset_node; /**< fake offset */
619 struct drm_vblank_info {
620 wait_queue_head_t queue; /* vblank wait queue */
621 atomic_t count; /* number of VBLANK interrupts */
622 /* (driver must alloc the right number of counters) */
623 atomic_t refcount; /* number of users of vblank interrupts */
624 u32 last; /* protected by dev->vbl_lock, used */
625 /* for wraparound handling */
626 int enabled; /* so we don't call enable more than */
627 /* once per disable */
628 int inmodeset; /* Display driver is setting mode */
631 /* location of GART table */
632 #define DRM_ATI_GART_MAIN 1
633 #define DRM_ATI_GART_FB 2
635 #define DRM_ATI_GART_PCI 1
636 #define DRM_ATI_GART_PCIE 2
637 #define DRM_ATI_GART_IGP 3
639 struct drm_ati_pcigart_info {
640 int gart_table_location;
644 dma_addr_t table_mask;
645 dma_addr_t member_mask;
646 struct drm_dma_handle *table_handle;
647 drm_local_map_t mapping;
649 struct drm_dma_handle *dmah; /* handle for ATI PCIGART table */
652 typedef vm_paddr_t resource_size_t;
655 * GEM specific mm private for tracking GEM objects
658 struct drm_open_hash offset_hash; /**< User token hash table for maps */
659 struct unrhdr *idxunr;
662 struct drm_gem_object {
663 /** Reference count of this object */
664 struct kref refcount;
666 /** Handle count of this object. Each handle also holds a reference */
667 atomic_t handle_count; /* number of handles on this object */
669 /** Related drm device */
670 struct drm_device *dev;
672 /** File representing the shmem storage: filp in Linux parlance */
676 struct drm_hash_item map_list;
679 * Size of the object, in bytes. Immutable over the object's
685 * Global name for this object, starts at 1. 0 means unnamed.
686 * Access is covered by the object_name_lock in the related drm_device
691 * Memory domains. These monitor which caches contain read/write data
692 * related to the object. When transitioning from one set of domains
693 * to another, the driver is called to ensure that caches are suitably
694 * flushed and invalidated
696 uint32_t read_domains;
697 uint32_t write_domain;
700 * While validating an exec operation, the
701 * new read/write domain values are computed here.
702 * They will be transferred to the above values
703 * at the point that any cache flushing occurs
705 uint32_t pending_read_domains;
706 uint32_t pending_write_domain;
708 void *driver_private;
711 /* dma buf exported from this GEM object */
712 struct dma_buf *export_dma_buf;
714 /* dma buf attachment backing this object */
715 struct dma_buf_attachment *import_attach;
716 #endif /* DUMBBELL_WIP */
719 #include "drm_crtc.h"
721 /* per-master structure */
724 struct kref refcount; /* refcount for this master */
726 struct list_head head; /**< each minor contains a list of masters */
727 struct drm_minor *minor; /**< link back to minor we are a master for */
729 char *unique; /**< Unique identifier: e.g., busid */
730 int unique_len; /**< Length of unique field */
731 int unique_size; /**< amount allocated */
733 int blocked; /**< Blocked due to VC switch? */
735 /** \name Authentication */
737 struct drm_open_hash magiclist;
738 struct list_head magicfree;
741 struct drm_lock_data lock; /**< Information on hardware lock */
743 void *driver_priv; /**< Private structure for driver to use */
746 /* Size of ringbuffer for vblank timestamps. Just double-buffer
747 * in initial implementation.
749 #define DRM_VBLANKTIME_RBSIZE 2
751 /* Flags and return codes for get_vblank_timestamp() driver function. */
752 #define DRM_CALLED_FROM_VBLIRQ 1
753 #define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0)
754 #define DRM_VBLANKTIME_INVBL (1 << 1)
756 /* get_scanout_position() return flags */
757 #define DRM_SCANOUTPOS_VALID (1 << 0)
758 #define DRM_SCANOUTPOS_INVBL (1 << 1)
759 #define DRM_SCANOUTPOS_ACCURATE (1 << 2)
762 #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1)
765 #define upper_32_bits(n) ((u32)(((n) >> 16) >> 16))
768 int (*load)(struct drm_device *, unsigned long flags);
769 int (*use_msi)(struct drm_device *, unsigned long flags);
770 int (*firstopen)(struct drm_device *);
771 int (*open)(struct drm_device *, struct drm_file *);
772 void (*preclose)(struct drm_device *, struct drm_file *file_priv);
773 void (*postclose)(struct drm_device *, struct drm_file *);
774 void (*lastclose)(struct drm_device *);
775 int (*unload)(struct drm_device *);
776 void (*reclaim_buffers_locked)(struct drm_device *,
777 struct drm_file *file_priv);
778 int (*dma_ioctl)(struct drm_device *dev, void *data,
779 struct drm_file *file_priv);
780 void (*dma_ready)(struct drm_device *);
781 int (*dma_quiescent)(struct drm_device *);
782 int (*dma_flush_block_and_flush)(struct drm_device *, int context,
783 enum drm_lock_flags flags);
784 int (*dma_flush_unblock)(struct drm_device *, int context,
785 enum drm_lock_flags flags);
786 int (*context_ctor)(struct drm_device *dev, int context);
787 int (*context_dtor)(struct drm_device *dev, int context);
788 int (*kernel_context_switch)(struct drm_device *dev, int old,
790 int (*kernel_context_switch_unlock)(struct drm_device *dev);
791 void (*irq_preinstall)(struct drm_device *dev);
792 int (*irq_postinstall)(struct drm_device *dev);
793 void (*irq_uninstall)(struct drm_device *dev);
794 void (*irq_handler)(DRM_IRQ_ARGS);
796 u32 (*get_vblank_counter)(struct drm_device *dev, int crtc);
797 int (*enable_vblank)(struct drm_device *dev, int crtc);
798 void (*disable_vblank)(struct drm_device *dev, int crtc);
799 int (*get_scanout_position)(struct drm_device *dev, int crtc,
800 int *vpos, int *hpos);
802 int (*get_vblank_timestamp)(struct drm_device *dev, int crtc,
803 int *max_error, struct timeval *vblank_time,
806 int (*gem_init_object)(struct drm_gem_object *obj);
807 void (*gem_free_object)(struct drm_gem_object *obj);
808 int (*gem_open_object)(struct drm_gem_object *, struct drm_file *);
809 void (*gem_close_object)(struct drm_gem_object *, struct drm_file *);
811 struct cdev_pager_ops *gem_pager_ops;
813 int (*dumb_create)(struct drm_file *file_priv,
814 struct drm_device *dev, struct drm_mode_create_dumb *args);
815 int (*dumb_map_offset)(struct drm_file *file_priv,
816 struct drm_device *dev, uint32_t handle, uint64_t *offset);
817 int (*dumb_destroy)(struct drm_file *file_priv,
818 struct drm_device *dev, uint32_t handle);
820 int (*sysctl_init)(struct drm_device *dev,
821 struct sysctl_ctx_list *ctx, struct sysctl_oid *top);
822 void (*sysctl_cleanup)(struct drm_device *dev);
824 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */
827 * Called by \c drm_device_is_agp. Typically used to determine if a
828 * card is really attached to AGP or not.
830 * \param dev DRM device handle
833 * One of three values is returned depending on whether or not the
834 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
835 * (return of 1), or may or may not be AGP (return of 2).
837 int (*device_is_agp) (struct drm_device * dev);
839 drm_ioctl_desc_t *ioctls;
840 #ifdef COMPAT_FREEBSD32
841 drm_ioctl_desc_t *compat_ioctls;
842 int *compat_ioctls_nr;
851 const char *name; /* Simple driver name */
852 const char *desc; /* Longer driver name */
853 const char *date; /* Date of last major changes. */
859 * DRM minor structure. This structure represents a drm minor number.
862 int index; /**< Minor device number */
863 int type; /**< Control or render */
864 device_t kdev; /**< OS device */
865 struct drm_device *dev;
867 struct drm_master *master; /* currently active master for this node */
868 struct list_head master_list;
869 struct drm_mode_group mode_group;
872 /* mode specified on the command line */
873 struct drm_cmdline_mode {
875 bool refresh_specified;
884 enum drm_connector_force force;
888 struct drm_pending_vblank_event {
889 struct drm_pending_event base;
891 struct drm_event_vblank event;
894 /* Length for the array of resource pointers for drm_get_resource_*. */
895 #define DRM_MAX_PCI_RESOURCE 6
898 * DRM device structure. This structure represent a complete card that
899 * may contain multiple heads.
902 struct drm_driver *driver;
903 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */
905 uint16_t pci_device; /* PCI device id */
906 uint16_t pci_vendor; /* PCI vendor id */
907 uint16_t pci_subdevice; /* PCI subsystem device id */
908 uint16_t pci_subvendor; /* PCI subsystem vendor id */
910 char *unique; /* Unique identifier: e.g., busid */
911 int unique_len; /* Length of unique field */
912 device_t device; /* Device instance from newbus */
913 struct cdev *devnode; /* Device number for mknod */
914 int if_version; /* Highest interface version set */
916 int flags; /* Flags to open(2) */
919 struct spinlock dma_lock; /* protects dev->dma */
920 struct lwkt_serialize irq_lock; /* protects irq condition checks */
921 struct lock dev_lock; /* protects everything else */
922 struct lock dev_struct_lock;
925 int open_count; /* Outstanding files open */
926 int buf_use; /* Buffers in use -- cannot alloc */
928 /* Performance counters */
929 unsigned long counters;
930 enum drm_stat_type types[15];
934 drm_file_list_t files;
935 drm_magic_head_t magiclist[DRM_HASH_SIZE];
937 /** \name Memory management */
939 struct list_head maplist; /**< Linked list of regions */
940 struct unrhdr *map_unrhdr;
942 drm_local_map_t **context_sareas;
945 drm_lock_data_t lock; /* Information on hardware lock */
947 /* DMA queues (contexts) */
948 drm_device_dma_t *dma; /* Optional pointer for DMA support */
950 /* Context support */
951 int irq; /* Interrupt used by board */
952 int msi_enabled; /* MSI enabled */
953 int irqrid; /* Interrupt used by board */
954 struct resource *irqr; /* Resource for interrupt used by board */
955 void *irqh; /* Handle from bus_setup_intr */
957 /* Storage of resource pointers for drm_get_resource_* */
958 struct resource *pcir[DRM_MAX_PCI_RESOURCE];
959 int pcirid[DRM_MAX_PCI_RESOURCE];
966 /** \name Context support */
968 int irq_enabled; /**< True if irq handler is enabled */
969 __volatile__ long context_flag; /**< Context swapping flag */
970 int last_context; /**< Last current context */
975 struct sigio *buf_sigio; /* Processes waiting for SIGIO */
978 struct drm_sysctl_info *sysctl;
982 drm_sg_mem_t *sg; /* Scatter gather memory */
983 unsigned long *ctx_bitmap;
985 unsigned int agp_buffer_token;
986 drm_local_map_t *agp_buffer_map;
988 struct drm_minor *control; /**< Control node for card */
989 struct drm_minor *primary; /**< render type primary screen head */
993 int vblank_disable_allowed;
995 atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */
996 struct timeval *_vblank_time; /**< timestamp of current vblank_count (drivers must alloc right number of fields) */
997 struct lock vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */
998 struct lock vbl_lock;
999 atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */
1000 u32 *last_vblank; /* protected by dev->vbl_lock, used */
1001 /* for wraparound handling */
1002 int *vblank_enabled; /* so we don't call enable more than
1004 int *vblank_inmodeset; /* Display driver is setting mode */
1005 u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */
1006 struct callout vblank_disable_callout;
1008 u32 max_vblank_count; /**< size of vblank counter register */
1010 struct list_head vblank_event_list;
1011 struct lock event_lock;
1013 struct drm_mode_config mode_config; /**< Current mode config */
1016 /** \name GEM information */
1018 struct spinlock object_name_lock;
1019 struct idr object_name_idr;
1023 void *sysctl_private;
1024 char busid_str[128];
1027 int switch_power_state;
1030 #define DRM_SWITCH_POWER_ON 0
1031 #define DRM_SWITCH_POWER_OFF 1
1032 #define DRM_SWITCH_POWER_CHANGING 2
1034 static __inline__ int drm_core_check_feature(struct drm_device *dev,
1037 return ((dev->driver->driver_features & feature) ? 1 : 0);
1041 static inline int drm_core_has_AGP(struct drm_device *dev)
1043 return drm_core_check_feature(dev, DRIVER_USE_AGP);
1046 #define drm_core_has_AGP(dev) (0)
1056 DMI_PRODUCT_VERSION,
1063 DMI_BOARD_ASSET_TAG,
1066 DMI_CHASSIS_VERSION,
1068 DMI_CHASSIS_ASSET_TAG,
1072 struct dmi_strmatch {
1077 struct dmi_system_id {
1078 int (*callback)(const struct dmi_system_id *);
1080 struct dmi_strmatch matches[4];
1082 #define DMI_MATCH(a, b) {(a), (b)}
1083 bool dmi_check_system(const struct dmi_system_id *);
1085 extern int drm_debug_flag;
1086 extern int drm_notyet_flag;
1087 extern unsigned int drm_vblank_offdelay;
1088 extern unsigned int drm_timestamp_precision;
1090 /* Device setup support (drm_drv.c) */
1091 int drm_probe(device_t kdev, drm_pci_id_list_t *idlist);
1092 int drm_attach(device_t kdev, drm_pci_id_list_t *idlist);
1093 int drm_create_cdevs(device_t kdev);
1094 int drm_detach(device_t kdev);
1095 d_ioctl_t drm_ioctl;
1097 d_close_t drm_close;
1099 d_kqfilter_t drm_kqfilter;
1101 d_mmap_single_t drm_mmap_single;
1102 extern drm_local_map_t *drm_getsarea(struct drm_device *dev);
1104 void drm_event_wakeup(struct drm_pending_event *e);
1106 int drm_add_busid_modesetting(struct drm_device *dev,
1107 struct sysctl_ctx_list *ctx, struct sysctl_oid *top);
1109 /* File operations helpers (drm_fops.c) */
1110 extern int drm_open_helper(struct cdev *kdev, int flags, int fmt,
1112 struct drm_device *dev);
1113 extern struct drm_file *drm_find_file_by_proc(struct drm_device *dev,
1117 extern int drm_gem_prime_handle_to_fd(struct drm_device *dev,
1118 struct drm_file *file_priv, uint32_t handle, uint32_t flags,
1120 extern int drm_gem_prime_fd_to_handle(struct drm_device *dev,
1121 struct drm_file *file_priv, int prime_fd, uint32_t *handle);
1123 extern int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data,
1124 struct drm_file *file_priv);
1125 extern int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data,
1126 struct drm_file *file_priv);
1133 extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, vm_page_t *pages,
1134 dma_addr_t *addrs, int max_pages);
1135 #endif /* DUMBBELL_WIP */
1136 extern struct sg_table *drm_prime_pages_to_sg(vm_page_t *pages, int nr_pages);
1137 extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg);
1140 void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv);
1141 void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv);
1142 int drm_prime_add_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t handle);
1143 int drm_prime_lookup_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t *handle);
1144 void drm_prime_remove_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf);
1146 int drm_prime_add_dma_buf(struct drm_device *dev, struct drm_gem_object *obj);
1147 int drm_prime_lookup_obj(struct drm_device *dev, struct dma_buf *buf,
1148 struct drm_gem_object **obj);
1149 #endif /* DUMBBELL_WIP */
1151 /* Memory management support (drm_memory.c) */
1152 void drm_mem_init(void);
1153 void drm_mem_uninit(void);
1154 void *drm_ioremap_wc(struct drm_device *dev, drm_local_map_t *map);
1155 void *drm_ioremap(struct drm_device *dev, drm_local_map_t *map);
1156 void drm_ioremapfree(drm_local_map_t *map);
1157 int drm_mtrr_add(unsigned long offset, size_t size, int flags);
1158 int drm_mtrr_del(int handle, unsigned long offset, size_t size, int flags);
1160 int drm_ctxbitmap_init(struct drm_device *dev);
1161 void drm_ctxbitmap_cleanup(struct drm_device *dev);
1162 void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
1163 int drm_ctxbitmap_next(struct drm_device *dev);
1165 /* Locking IOCTL support (drm_lock.c) */
1166 int drm_lock_take(struct drm_lock_data *lock_data,
1167 unsigned int context);
1168 int drm_lock_transfer(struct drm_lock_data *lock_data,
1169 unsigned int context);
1170 int drm_lock_free(struct drm_lock_data *lock_data,
1171 unsigned int context);
1173 /* Buffer management support (drm_bufs.c) */
1174 unsigned long drm_get_resource_start(struct drm_device *dev,
1175 unsigned int resource);
1176 unsigned long drm_get_resource_len(struct drm_device *dev,
1177 unsigned int resource);
1178 void drm_rmmap(struct drm_device *dev, drm_local_map_t *map);
1179 int drm_order(unsigned long size);
1180 int drm_addmap(struct drm_device *dev, unsigned long offset,
1182 enum drm_map_type type, enum drm_map_flags flags,
1183 drm_local_map_t **map_ptr);
1184 int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc *request);
1185 int drm_addbufs_sg(struct drm_device *dev, struct drm_buf_desc *request);
1186 int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc *request);
1188 /* DMA support (drm_dma.c) */
1189 int drm_dma_setup(struct drm_device *dev);
1190 void drm_dma_takedown(struct drm_device *dev);
1191 void drm_free_buffer(struct drm_device *dev, drm_buf_t *buf);
1192 void drm_reclaim_buffers(struct drm_device *dev, struct drm_file *file_priv);
1193 #define drm_core_reclaim_buffers drm_reclaim_buffers
1195 /* IRQ support (drm_irq.c) */
1196 int drm_irq_install(struct drm_device *dev);
1197 int drm_irq_uninstall(struct drm_device *dev);
1198 irqreturn_t drm_irq_handler(DRM_IRQ_ARGS);
1199 void drm_driver_irq_preinstall(struct drm_device *dev);
1200 void drm_driver_irq_postinstall(struct drm_device *dev);
1201 void drm_driver_irq_uninstall(struct drm_device *dev);
1203 void drm_vblank_pre_modeset(struct drm_device *dev, int crtc);
1204 void drm_vblank_post_modeset(struct drm_device *dev, int crtc);
1205 int drm_modeset_ctl(struct drm_device *dev, void *data,
1206 struct drm_file *file_priv);
1208 extern int drm_vblank_init(struct drm_device *dev, int num_crtcs);
1209 extern int drm_wait_vblank(struct drm_device *dev, void *data,
1210 struct drm_file *filp);
1211 extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq);
1212 extern u32 drm_vblank_count(struct drm_device *dev, int crtc);
1213 extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc,
1214 struct timeval *vblanktime);
1215 extern bool drm_handle_vblank(struct drm_device *dev, int crtc);
1216 void drm_handle_vblank_events(struct drm_device *dev, int crtc);
1217 extern int drm_vblank_get(struct drm_device *dev, int crtc);
1218 extern void drm_vblank_put(struct drm_device *dev, int crtc);
1219 extern void drm_vblank_off(struct drm_device *dev, int crtc);
1220 extern void drm_vblank_cleanup(struct drm_device *dev);
1221 extern u32 drm_get_last_vbltimestamp(struct drm_device *dev, int crtc,
1222 struct timeval *tvblank, unsigned flags);
1223 extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev,
1224 int crtc, int *max_error,
1225 struct timeval *vblank_time,
1227 struct drm_crtc *refcrtc);
1228 extern void drm_calc_timestamping_constants(struct drm_crtc *crtc);
1230 struct timeval ns_to_timeval(const int64_t nsec);
1231 int64_t timeval_to_ns(const struct timeval *tv);
1233 /* AGP/PCI Express/GART support (drm_agpsupport.c) */
1234 int drm_device_is_agp(struct drm_device *dev);
1235 int drm_device_is_pcie(struct drm_device *dev);
1236 drm_agp_head_t *drm_agp_init(void);
1237 int drm_agp_acquire(struct drm_device *dev);
1238 int drm_agp_release(struct drm_device *dev);
1239 int drm_agp_info(struct drm_device * dev, struct drm_agp_info *info);
1240 int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode);
1241 void *drm_agp_allocate_memory(size_t pages, u32 type);
1242 int drm_agp_free_memory(void *handle);
1243 int drm_agp_bind_memory(void *handle, off_t start);
1244 int drm_agp_unbind_memory(void *handle);
1245 int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request);
1246 int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request);
1247 int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
1248 int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request);
1250 /* Scatter Gather Support (drm_scatter.c) */
1251 void drm_sg_cleanup(drm_sg_mem_t *entry);
1252 int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request);
1254 /* sysctl support (drm_sysctl.h) */
1255 extern int drm_sysctl_init(struct drm_device *dev);
1256 extern int drm_sysctl_cleanup(struct drm_device *dev);
1258 /* ATI PCIGART support (ati_pcigart.c) */
1259 int drm_ati_pcigart_init(struct drm_device *dev,
1260 struct drm_ati_pcigart_info *gart_info);
1261 int drm_ati_pcigart_cleanup(struct drm_device *dev,
1262 struct drm_ati_pcigart_info *gart_info);
1264 /* Cache management (drm_memory.c) */
1265 void drm_clflush_pages(vm_page_t *pages, unsigned long num_pages);
1267 /* Locking IOCTL support (drm_drv.c) */
1268 int drm_lock(struct drm_device *dev, void *data,
1269 struct drm_file *file_priv);
1270 int drm_unlock(struct drm_device *dev, void *data,
1271 struct drm_file *file_priv);
1272 int drm_version(struct drm_device *dev, void *data,
1273 struct drm_file *file_priv);
1274 int drm_setversion(struct drm_device *dev, void *data,
1275 struct drm_file *file_priv);
1277 /* Misc. IOCTL support (drm_ioctl.c) */
1278 int drm_irq_by_busid(struct drm_device *dev, void *data,
1279 struct drm_file *file_priv);
1280 int drm_getunique(struct drm_device *dev, void *data,
1281 struct drm_file *file_priv);
1282 int drm_setunique(struct drm_device *dev, void *data,
1283 struct drm_file *file_priv);
1284 int drm_getmap(struct drm_device *dev, void *data,
1285 struct drm_file *file_priv);
1286 int drm_getclient(struct drm_device *dev, void *data,
1287 struct drm_file *file_priv);
1288 int drm_getstats(struct drm_device *dev, void *data,
1289 struct drm_file *file_priv);
1290 int drm_getcap(struct drm_device *dev, void *data,
1291 struct drm_file *file_priv);
1292 int drm_noop(struct drm_device *dev, void *data,
1293 struct drm_file *file_priv);
1295 /* Context IOCTL support (drm_context.c) */
1296 int drm_resctx(struct drm_device *dev, void *data,
1297 struct drm_file *file_priv);
1298 int drm_addctx(struct drm_device *dev, void *data,
1299 struct drm_file *file_priv);
1300 int drm_modctx(struct drm_device *dev, void *data,
1301 struct drm_file *file_priv);
1302 int drm_getctx(struct drm_device *dev, void *data,
1303 struct drm_file *file_priv);
1304 int drm_switchctx(struct drm_device *dev, void *data,
1305 struct drm_file *file_priv);
1306 int drm_newctx(struct drm_device *dev, void *data,
1307 struct drm_file *file_priv);
1308 int drm_rmctx(struct drm_device *dev, void *data,
1309 struct drm_file *file_priv);
1310 int drm_setsareactx(struct drm_device *dev, void *data,
1311 struct drm_file *file_priv);
1312 int drm_getsareactx(struct drm_device *dev, void *data,
1313 struct drm_file *file_priv);
1315 /* Authentication IOCTL support (drm_auth.c) */
1316 int drm_getmagic(struct drm_device *dev, void *data,
1317 struct drm_file *file_priv);
1318 int drm_authmagic(struct drm_device *dev, void *data,
1319 struct drm_file *file_priv);
1321 /* Buffer management support (drm_bufs.c) */
1322 int drm_addmap_ioctl(struct drm_device *dev, void *data,
1323 struct drm_file *file_priv);
1324 int drm_rmmap_ioctl(struct drm_device *dev, void *data,
1325 struct drm_file *file_priv);
1326 int drm_addbufs(struct drm_device *dev, void *data,
1327 struct drm_file *file_priv);
1328 int drm_infobufs(struct drm_device *dev, void *data,
1329 struct drm_file *file_priv);
1330 int drm_markbufs(struct drm_device *dev, void *data,
1331 struct drm_file *file_priv);
1332 int drm_freebufs(struct drm_device *dev, void *data,
1333 struct drm_file *file_priv);
1334 int drm_mapbufs(struct drm_device *dev, void *data,
1335 struct drm_file *file_priv);
1337 /* DMA support (drm_dma.c) */
1338 int drm_dma(struct drm_device *dev, void *data, struct drm_file *file_priv);
1340 /* IRQ support (drm_irq.c) */
1341 int drm_control(struct drm_device *dev, void *data,
1342 struct drm_file *file_priv);
1344 /* AGP/GART support (drm_agpsupport.c) */
1345 int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
1346 struct drm_file *file_priv);
1347 int drm_agp_release_ioctl(struct drm_device *dev, void *data,
1348 struct drm_file *file_priv);
1349 int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
1350 struct drm_file *file_priv);
1351 int drm_agp_info_ioctl(struct drm_device *dev, void *data,
1352 struct drm_file *file_priv);
1353 int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
1354 struct drm_file *file_priv);
1355 int drm_agp_free_ioctl(struct drm_device *dev, void *data,
1356 struct drm_file *file_priv);
1357 int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
1358 struct drm_file *file_priv);
1359 int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
1360 struct drm_file *file_priv);
1362 /* Stub support (drm_stub.h) */
1363 extern int drm_setmaster_ioctl(struct drm_device *dev, void *data,
1364 struct drm_file *file_priv);
1365 extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
1366 struct drm_file *file_priv);
1368 /* Scatter Gather Support (drm_scatter.c) */
1369 int drm_sg_alloc_ioctl(struct drm_device *dev, void *data,
1370 struct drm_file *file_priv);
1371 int drm_sg_free(struct drm_device *dev, void *data,
1372 struct drm_file *file_priv);
1374 /* consistent PCI memory functions (drm_pci.c) */
1375 drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
1376 size_t align, dma_addr_t maxaddr);
1377 void drm_pci_free(struct drm_device *dev, drm_dma_handle_t *dmah);
1379 /* Graphics Execution Manager library functions (drm_gem.c) */
1380 int drm_gem_init(struct drm_device *dev);
1381 void drm_gem_destroy(struct drm_device *dev);
1382 void drm_gem_object_release(struct drm_gem_object *obj);
1383 void drm_gem_object_free(struct kref *kref);
1385 int drm_gem_close_ioctl(struct drm_device *dev, void *data,
1386 struct drm_file *file_priv);
1387 int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
1388 struct drm_file *file_priv);
1389 int drm_gem_open_ioctl(struct drm_device *dev, void *data,
1390 struct drm_file *file_priv);
1391 void drm_gem_object_handle_free(struct drm_gem_object *obj);
1393 #include <drm/drm_global.h>
1396 drm_gem_object_reference(struct drm_gem_object *obj)
1398 kref_get(&obj->refcount);
1402 drm_gem_object_unreference(struct drm_gem_object *obj)
1405 kref_put(&obj->refcount, drm_gem_object_free);
1409 drm_gem_object_unreference_unlocked(struct drm_gem_object *obj)
1412 struct drm_device *dev = obj->dev;
1414 kref_put(&obj->refcount, drm_gem_object_free);
1419 int drm_gem_handle_create(struct drm_file *file_priv,
1420 struct drm_gem_object *obj,
1422 int drm_gem_handle_delete(struct drm_file *filp, u32 handle);
1425 drm_gem_object_handle_reference(struct drm_gem_object *obj)
1427 drm_gem_object_reference(obj);
1428 atomic_inc(&obj->handle_count);
1432 drm_gem_object_handle_unreference(struct drm_gem_object *obj)
1437 if (atomic_read(&obj->handle_count) == 0)
1440 * Must bump handle count first as this may be the last
1441 * ref, in which case the object would disappear before we
1442 * checked for a name
1444 if (atomic_dec_and_test(&obj->handle_count))
1445 drm_gem_object_handle_free(obj);
1446 drm_gem_object_unreference(obj);
1450 drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj)
1455 if (atomic_read(&obj->handle_count) == 0)
1459 * Must bump handle count first as this may be the last
1460 * ref, in which case the object would disappear before we
1461 * checked for a name
1464 if (atomic_dec_and_test(&obj->handle_count))
1465 drm_gem_object_handle_free(obj);
1466 drm_gem_object_unreference_unlocked(obj);
1469 int drm_gem_object_init(struct drm_device *dev, struct drm_gem_object *obj,
1471 int drm_gem_private_object_init(struct drm_device *dev,
1472 struct drm_gem_object *obj, size_t size);
1473 struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev,
1475 struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev,
1476 struct drm_file *file_priv, uint32_t handle);
1478 void drm_gem_open(struct drm_device *dev, struct drm_file *file_priv);
1479 void drm_gem_release(struct drm_device *dev, struct drm_file *file_priv);
1481 int drm_gem_create_mmap_offset(struct drm_gem_object *obj);
1482 void drm_gem_free_mmap_offset(struct drm_gem_object *obj);
1483 int drm_gem_mmap_single(struct drm_device *dev, vm_ooffset_t *offset,
1484 vm_size_t size, struct vm_object **obj_res, int nprot);
1485 void drm_gem_pager_dtr(void *obj);
1487 struct ttm_bo_device;
1488 int ttm_bo_mmap_single(struct ttm_bo_device *bdev, vm_ooffset_t *offset,
1489 vm_size_t size, struct vm_object **obj_res, int nprot);
1490 struct ttm_buffer_object;
1491 void ttm_bo_release_mmap(struct ttm_buffer_object *bo);
1493 void drm_device_lock_mtx(struct drm_device *dev);
1494 void drm_device_unlock_mtx(struct drm_device *dev);
1495 int drm_device_sleep_mtx(struct drm_device *dev, void *chan, int flags,
1496 const char *msg, int timeout);
1497 void drm_device_assert_mtx_locked(struct drm_device *dev);
1498 void drm_device_assert_mtx_unlocked(struct drm_device *dev);
1500 void drm_device_lock_struct(struct drm_device *dev);
1501 void drm_device_unlock_struct(struct drm_device *dev);
1502 int drm_device_sleep_struct(struct drm_device *dev, void *chan, int flags,
1503 const char *msg, int timeout);
1504 void drm_device_assert_struct_locked(struct drm_device *dev);
1505 void drm_device_assert_struct_unlocked(struct drm_device *dev);
1507 void drm_compat_locking_init(struct drm_device *dev);
1508 void drm_sleep_locking_init(struct drm_device *dev);
1511 bool drm_mode_parse_command_line_for_connector(const char *mode_option,
1512 struct drm_connector *connector, struct drm_cmdline_mode *mode);
1513 struct drm_display_mode *drm_mode_create_from_cmdline_mode(
1514 struct drm_device *dev, struct drm_cmdline_mode *cmd);
1517 u8 *drm_find_cea_extension(struct edid *edid);
1519 /* Inline replacements for drm_alloc and friends */
1520 static __inline__ void *
1521 drm_alloc(size_t size, struct malloc_type *area)
1523 return kmalloc(size, area, M_NOWAIT);
1526 static __inline__ void *
1527 drm_calloc(size_t nmemb, size_t size, struct malloc_type *area)
1529 return kmalloc(size * nmemb, area, M_NOWAIT | M_ZERO);
1532 static __inline__ void *
1533 drm_realloc(void *oldpt, size_t oldsize, size_t size,
1534 struct malloc_type *area)
1537 res = krealloc(oldpt, size, area, M_NOWAIT);
1538 if (res == NULL && oldpt != NULL)
1543 static __inline__ void
1544 drm_free(void *pt, struct malloc_type *area)
1550 /* Inline replacements for DRM_IOREMAP macros */
1551 static __inline__ void
1552 drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev)
1554 map->virtual = drm_ioremap_wc(dev, map);
1556 static __inline__ void
1557 drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev)
1559 map->virtual = drm_ioremap(dev, map);
1561 static __inline__ void
1562 drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev)
1564 if ( map->virtual && map->size )
1565 drm_ioremapfree(map);
1568 static __inline__ struct drm_local_map *
1569 drm_core_findmap(struct drm_device *dev, unsigned long offset)
1571 struct drm_map_list *_entry;
1573 list_for_each_entry(_entry, &dev->maplist, head) {
1574 if (offset == (unsigned long)_entry->map->handle)
1580 static __inline__ void drm_core_dropmap(struct drm_map *map)
1584 /* FreeBSD compatibility macros */
1585 #define PROC_LOCK(p)
1586 #define PROC_UNLOCK(p)
1588 #define VM_OBJECT_RLOCK(object) VM_OBJECT_LOCK(object)
1589 #define VM_OBJECT_RUNLOCK(object) VM_OBJECT_UNLOCK(object)
1590 #define VM_OBJECT_WLOCK(object) VM_OBJECT_LOCK(object)
1591 #define VM_OBJECT_WUNLOCK(object) VM_OBJECT_UNLOCK(object)
1593 #define CTR2(one,two,three,four)
1595 #define DRM_PCIE_SPEED_25 1
1596 #define DRM_PCIE_SPEED_50 2
1597 #define DRM_PCIE_SPEED_80 4
1599 extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask);
1601 #define drm_can_sleep() (DRM_HZ & 1)
1603 #endif /* __KERNEL__ */
1604 #endif /* _DRM_P_H_ */