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/err.h>
98 #include <linux/idr.h>
99 #include <linux/pci.h>
100 #include <linux/jiffies.h>
101 #include <linux/kernel.h>
102 #include <linux/kref.h>
103 #include <linux/list.h>
104 #include <linux/mutex.h>
105 #include <linux/timer.h>
106 #include <linux/types.h>
107 #include <linux/wait.h>
109 #include <asm/uaccess.h>
114 #include "drm_os_freebsd.h"
115 #include "drm_hashtab.h"
118 #define DRM_UT_CORE 0x01
119 #define DRM_UT_DRIVER 0x02
120 #define DRM_UT_KMS 0x04
121 #define DRM_UT_PRIME 0x08
126 #define DRM_DEBUG_DEFAULT_ON 1
127 #endif /* DRM_DEBUG */
129 #define DRM_DEBUGBITS_DEBUG 0x1
130 #define DRM_DEBUGBITS_KMS 0x2
131 #define DRM_DEBUGBITS_FAILED_IOCTL 0x4
136 /***********************************************************************/
137 /** \name DRM template customization defaults */
140 /* driver capabilities and requirements mask */
141 #define DRIVER_USE_AGP 0x1
142 #define DRIVER_REQUIRE_AGP 0x2
143 #define DRIVER_USE_MTRR 0x4
144 #define DRIVER_PCI_DMA 0x8
145 #define DRIVER_SG 0x10
146 #define DRIVER_HAVE_DMA 0x20
147 #define DRIVER_HAVE_IRQ 0x40
148 #define DRIVER_IRQ_SHARED 0x80
149 #define DRIVER_IRQ_VBL 0x100
150 #define DRIVER_DMA_QUEUE 0x200
151 #define DRIVER_FB_DMA 0x400
152 #define DRIVER_IRQ_VBL2 0x800
153 #define DRIVER_GEM 0x1000
154 #define DRIVER_MODESET 0x2000
155 #define DRIVER_PRIME 0x4000
156 #define DRIVER_LOCKLESS_IRQ 0x8000
158 /***********************************************************************/
159 /** \name Begin the DRM... */
162 #define DRM_HASH_SIZE 16 /* Size of key hash table */
163 #define DRM_KERNEL_CONTEXT 0 /* Change drm_resctx if changed */
164 #define DRM_RESERVED_CONTEXTS 1 /* Change drm_resctx if changed */
166 #define DRM_GEM_MAPPING_MASK (3ULL << 62)
167 #define DRM_GEM_MAPPING_KEY (2ULL << 62) /* Non-canonical address form */
168 #define DRM_GEM_MAX_IDX 0x3fffff
169 #define DRM_GEM_MAPPING_IDX(o) (((o) >> 40) & DRM_GEM_MAX_IDX)
170 #define DRM_GEM_MAPPING_OFF(i) (((uint64_t)(i)) << 40)
171 #define DRM_GEM_MAPPING_MAPOFF(o) \
172 ((o) & ~(DRM_GEM_MAPPING_OFF(DRM_GEM_MAX_IDX) | DRM_GEM_MAPPING_KEY))
174 MALLOC_DECLARE(M_DRM);
176 SYSCTL_DECL(_hw_drm);
178 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
180 /***********************************************************************/
181 /** \name Internal types and structures */
184 #define DRM_ARRAY_SIZE(x) NELEM(x)
185 #define DRM_MIN(a,b) ((a)<(b)?(a):(b))
186 #define DRM_MAX(a,b) ((a)>(b)?(a):(b))
188 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
190 #define __OS_HAS_AGP 1
192 #define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP)
193 #define DRM_DEV_UID 0
194 #define DRM_DEV_GID 0
196 #define DRM_WAKEUP(w) wakeup((void *)w)
197 #define DRM_WAKEUP_INT(w) wakeup(w)
198 #define DRM_INIT_WAITQUEUE(queue) do {(void)(queue);} while (0)
200 #define DRM_CURPROC curthread
201 #define DRM_STRUCTPROC struct thread
202 #define DRM_CURRENTPID (curproc != NULL ? curproc->p_pid : -1)
203 #define DRM_LOCK(dev) lockmgr(&(dev)->dev_struct_lock, LK_EXCLUSIVE)
204 #define DRM_UNLOCK(dev) lockmgr(&(dev)->dev_struct_lock, LK_RELEASE)
205 #define DRM_LOCK_SLEEP(dev, chan, flags, msg, timeout) \
206 (lksleep((chan), &(dev)->dev_struct_lock, (flags), (msg), (timeout)))
207 #if defined(INVARIANTS)
208 #define DRM_LOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->dev_struct_lock, curthread) != 0);
209 #define DRM_UNLOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->dev_struct_lock, curthread) == 0);
211 #define DRM_LOCK_ASSERT(d)
212 #define DRM_UNLOCK_ASSERT(d)
215 #define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS)
217 #define DRM_IRQ_ARGS void *arg
218 typedef void irqreturn_t;
219 #define IRQ_HANDLED /* nothing */
220 #define IRQ_NONE /* nothing */
227 #define DRM_AGP_MEM struct agp_memory_info
229 #define drm_get_device_from_kdev(_kdev) (_kdev->si_drv1)
231 #define PAGE_ALIGN(addr) round_page(addr)
232 /* DRM_SUSER returns true if the user is superuser */
233 #define DRM_SUSER(p) (priv_check(p, PRIV_DRIVER) == 0)
234 #define DRM_AGP_FIND_DEVICE() agp_find_device()
235 #define DRM_MTRR_WC MDF_WRITECOMBINE
237 /* DRM_READMEMORYBARRIER() prevents reordering of reads.
238 * DRM_WRITEMEMORYBARRIER() prevents reordering of writes.
239 * DRM_MEMORYBARRIER() prevents reordering of reads and writes.
241 #define DRM_READMEMORYBARRIER() cpu_lfence()
242 #define DRM_WRITEMEMORYBARRIER() cpu_sfence()
243 #define DRM_MEMORYBARRIER() cpu_mfence()
245 #define DRM_READ8(map, offset) \
246 *(volatile u_int8_t *)(((vm_offset_t)(map)->virtual) + \
247 (vm_offset_t)(offset))
248 #define DRM_READ16(map, offset) \
249 le16toh(*(volatile u_int16_t *)(((vm_offset_t)(map)->virtual) + \
250 (vm_offset_t)(offset)))
251 #define DRM_READ32(map, offset) \
252 le32toh(*(volatile u_int32_t *)(((vm_offset_t)(map)->virtual) + \
253 (vm_offset_t)(offset)))
254 #define DRM_READ64(map, offset) \
255 le64toh(*(volatile u_int64_t *)(((vm_offset_t)(map)->virtual) + \
256 (vm_offset_t)(offset)))
257 #define DRM_WRITE8(map, offset, val) \
258 *(volatile u_int8_t *)(((vm_offset_t)(map)->virtual) + \
259 (vm_offset_t)(offset)) = val
260 #define DRM_WRITE16(map, offset, val) \
261 *(volatile u_int16_t *)(((vm_offset_t)(map)->virtual) + \
262 (vm_offset_t)(offset)) = htole16(val)
263 #define DRM_WRITE32(map, offset, val) \
264 *(volatile u_int32_t *)(((vm_offset_t)(map)->virtual) + \
265 (vm_offset_t)(offset)) = htole32(val)
266 #define DRM_WRITE64(map, offset, val) \
267 *(volatile u_int64_t *)(((vm_offset_t)(map)->virtual) + \
268 (vm_offset_t)(offset)) = htole64(val)
270 #define DRM_VERIFYAREA_READ( uaddr, size ) \
271 (!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ))
273 #define DRM_COPY_TO_USER(user, kern, size) \
274 copyout(kern, user, size)
275 #define DRM_COPY_FROM_USER(kern, user, size) \
276 copyin(user, kern, size)
277 #define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \
278 copyin(arg2, arg1, arg3)
279 #define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \
280 copyout(arg2, arg1, arg3)
281 #define DRM_GET_USER_UNCHECKED(val, uaddr) \
282 ((val) = fuword32(uaddr), 0)
284 #define drm_can_sleep() (DRM_HZ & 1)
286 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
287 (_map) = (_dev)->context_sareas[_ctx]; \
290 #define LOCK_TEST_WITH_RETURN(dev, file_priv) \
292 if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) || \
293 dev->lock.file_priv != file_priv) { \
294 DRM_ERROR("%s called without lock held\n", \
300 /* Returns -errno to shared code */
301 #define DRM_WAIT_ON( ret, queue, timeout, condition ) \
302 for ( ret = 0 ; !ret && !(condition) ; ) { \
304 lwkt_serialize_enter(&dev->irq_lock); \
305 if (!(condition)) { \
306 tsleep_interlock(&(queue), PCATCH); \
307 lwkt_serialize_exit(&dev->irq_lock); \
308 ret = -tsleep(&(queue), PCATCH | PINTERLOCKED, \
309 "drmwtq", (timeout)); \
311 lwkt_serialize_exit(&dev->irq_lock); \
317 vm_page_unhold_pages(vm_page_t *ma, int count)
321 for (i = 0; i < count; i++)
322 vm_page_unhold(ma[i]);
325 int vm_phys_fictitious_reg_range(vm_paddr_t start, vm_paddr_t end,
326 vm_memattr_t memattr);
327 void vm_phys_fictitious_unreg_range(vm_paddr_t start, vm_paddr_t end);
328 vm_page_t vm_phys_fictitious_to_vm_page(vm_paddr_t pa);
330 #define DRM_ERROR(fmt, ...) \
331 kprintf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \
332 DRM_CURRENTPID, __func__ , ##__VA_ARGS__)
334 #define DRM_INFO(fmt, ...) kprintf("info: [" DRM_NAME "] " fmt , ##__VA_ARGS__)
336 #define DRM_DEBUG(fmt, ...) do { \
337 if ((drm_debug & DRM_DEBUGBITS_DEBUG) != 0) \
338 kprintf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \
339 __func__ , ##__VA_ARGS__); \
342 #define DRM_DEBUG_KMS(fmt, ...) do { \
343 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \
344 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\
345 __func__ , ##__VA_ARGS__); \
348 #define DRM_DEBUG_DRIVER(fmt, ...) do { \
349 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \
350 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\
351 __func__ , ##__VA_ARGS__); \
354 #define dev_err(dev, fmt, ...) \
355 device_printf((dev), "error: " fmt, ## __VA_ARGS__)
356 #define dev_warn(dev, fmt, ...) \
357 device_printf((dev), "warning: " fmt, ## __VA_ARGS__)
358 #define dev_info(dev, fmt, ...) \
359 device_printf((dev), "info: " fmt, ## __VA_ARGS__)
360 #define dev_dbg(dev, fmt, ...) do { \
361 if ((drm_debug& DRM_DEBUGBITS_KMS) != 0) { \
362 device_printf((dev), "debug: " fmt, ## __VA_ARGS__); \
366 typedef struct drm_pci_id_list
374 struct drm_msi_blacklist_entry
380 #define DRM_IOCTL_NR(n) ((n) & 0xff)
383 #define DRM_MASTER 0x2
384 #define DRM_ROOT_ONLY 0x4
385 #define DRM_CONTROL_ALLOW 0x8
386 #define DRM_UNLOCKED 0x10
388 typedef struct drm_ioctl_desc {
390 int (*func)(struct drm_device *dev, void *data,
391 struct drm_file *file_priv);
393 unsigned int cmd_drv;
397 * Creates a driver or general drm_ioctl_desc array entry for the given
398 * ioctl, for use by drm_ioctl().
400 #define DRM_IOCTL_DEF(ioctl, func, flags) \
401 [DRM_IOCTL_NR(ioctl)] = {ioctl, func, flags}
403 #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \
404 [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl}
406 typedef struct drm_magic_entry {
408 struct drm_file *priv;
409 struct drm_magic_entry *next;
412 typedef struct drm_magic_head {
413 struct drm_magic_entry *head;
414 struct drm_magic_entry *tail;
417 typedef struct drm_buf {
418 int idx; /**< Index into master buflist */
419 int total; /**< Buffer size */
420 int order; /**< log-base-2(total) */
421 int used; /**< Amount of buffer in use (for DMA) */
422 unsigned long offset; /**< Byte offset (used internally) */
423 void *address; /**< Address of buffer */
424 unsigned long bus_address; /**< Bus address of buffer */
425 struct drm_buf *next; /**< Kernel-only: used for free list */
426 __volatile__ int waiting; /**< On kernel DMA queue */
427 __volatile__ int pending; /**< On hardware DMA queue */
428 struct drm_file *file_priv; /**< Private of holding file descr */
429 int context; /**< Kernel queue for this buffer */
430 int while_locked; /**< Dispatch this buffer while locked */
438 } list; /**< Which list we're on */
440 int dev_priv_size; /**< Size of buffer private storage */
441 void *dev_private; /**< Per-buffer private storage */
444 struct drm_freelist {
445 int initialized; /* Freelist in use */
446 atomic_t count; /* Number of free buffers */
447 drm_buf_t *next; /* End pointer */
449 wait_queue_head_t waiting; /**< Processes waiting on free bufs */
450 int low_mark; /* Low water mark */
451 int high_mark; /* High water mark */
454 typedef struct drm_dma_handle {
461 typedef struct drm_buf_entry {
466 drm_dma_handle_t **seglist;
469 struct drm_freelist freelist;
472 /* Event queued up for userspace to read */
473 struct drm_pending_event {
474 struct drm_event *event;
475 struct list_head link;
476 struct drm_file *file_priv;
477 pid_t pid; /* pid of requester, no guarantee it's valid by the time
478 we deliver the event, for tracing only */
479 void (*destroy)(struct drm_pending_event *event);
482 /* initial implementaton using a linked list - todo hashtab */
483 struct drm_prime_file_private {
484 struct list_head head;
487 #endif /* DUMBBELL_WIP */
490 /** File private data */
493 struct drm_device *dev;
498 unsigned long ioctl_count;
499 struct list_head lhead;
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 lock table_lock;
510 struct drm_master *masterp;
512 struct list_head fbs;
514 wait_queue_head_t event_wait;
515 struct list_head event_list;
518 struct drm_prime_file_private prime;
524 struct drm_lock_data {
525 struct drm_hw_lock *hw_lock; /**< Hardware lock */
526 /** Private of lock holder's file (NULL=kernel) */
527 struct drm_file *file_priv;
528 wait_queue_head_t lock_queue; /**< Queue of blocked processes */
529 unsigned long lock_time; /**< Time of last lock in jiffies */
532 /* This structure, in the struct drm_device, is always initialized while the
534 * is open. dev->dma_lock protects the incrementing of dev->buf_use, which
535 * when set marks that no further bufs may be allocated until device teardown
536 * occurs (when the last open of the device has closed). The high/low
537 * watermarks of bufs are only touched by the X Server, and thus not
538 * concurrently accessed, so no locking is needed.
540 typedef struct drm_device_dma {
542 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */
543 int buf_count; /**< total number of buffers */
544 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */
546 int page_count; /**< number of pages */
547 unsigned long *pagelist; /**< page list */
548 unsigned long byte_count;
550 _DRM_DMA_USE_AGP = 0x01,
551 _DRM_DMA_USE_SG = 0x02,
552 _DRM_DMA_USE_FB = 0x04,
553 _DRM_DMA_USE_PCI_RO = 0x08
558 typedef struct drm_agp_mem {
560 unsigned long bound; /* address */
562 struct drm_agp_mem *prev;
563 struct drm_agp_mem *next;
566 typedef struct drm_agp_head {
568 struct agp_info agp_info;
570 drm_agp_mem_t *memory;
576 int cant_use_aperture;
577 unsigned long page_mask;
580 typedef struct drm_sg_mem {
586 #define DRM_MAP_HANDLE_BITS (sizeof(void *) == 4 ? 4 : 24)
587 #define DRM_MAP_HANDLE_SHIFT (sizeof(void *) * 8 - DRM_MAP_HANDLE_BITS)
590 * Kernel side of a mapping
592 struct drm_local_map {
593 unsigned long offset; /* Physical address (0 for SAREA) */
594 unsigned long size; /* Physical size (bytes) */
595 enum drm_map_type type; /* Type of memory mapped */
596 enum drm_map_flags flags; /* Flags */
597 void *handle; /* User-space: "Handle" to pass to mmap */
598 /* Kernel-space: kernel-virtual address */
599 int mtrr; /* Boolean: MTRR used */
601 int rid; /* PCI resource ID for bus_space */
602 void *virtual; /* Kernel-space: kernel-virtual address */
603 struct resource *bsr;
605 bus_space_handle_t bsh;
606 drm_dma_handle_t *dmah;
607 TAILQ_ENTRY(drm_local_map) link;
610 typedef struct drm_local_map drm_local_map_t;
615 struct drm_map_list {
616 struct list_head head; /**< list head */
617 struct drm_hash_item hash;
618 struct drm_local_map *map; /**< mapping */
620 struct drm_master *master;
621 struct drm_mm_node *file_offset_node; /**< fake offset */
624 struct drm_vblank_info {
625 wait_queue_head_t queue; /* vblank wait queue */
626 atomic_t count; /* number of VBLANK interrupts */
627 /* (driver must alloc the right number of counters) */
628 atomic_t refcount; /* number of users of vblank interrupts */
629 u32 last; /* protected by dev->vbl_lock, used */
630 /* for wraparound handling */
631 int enabled; /* so we don't call enable more than */
632 /* once per disable */
633 int inmodeset; /* Display driver is setting mode */
636 /* location of GART table */
637 #define DRM_ATI_GART_MAIN 1
638 #define DRM_ATI_GART_FB 2
640 #define DRM_ATI_GART_PCI 1
641 #define DRM_ATI_GART_PCIE 2
642 #define DRM_ATI_GART_IGP 3
644 struct drm_ati_pcigart_info {
645 int gart_table_location;
649 dma_addr_t table_mask;
650 dma_addr_t member_mask;
651 struct drm_dma_handle *table_handle;
652 drm_local_map_t mapping;
654 struct drm_dma_handle *dmah; /* handle for ATI PCIGART table */
658 * GEM specific mm private for tracking GEM objects
661 struct drm_open_hash offset_hash; /**< User token hash table for maps */
662 struct unrhdr *idxunr;
665 struct drm_gem_object {
666 /** Reference count of this object */
667 struct kref refcount;
669 /** Handle count of this object. Each handle also holds a reference */
670 atomic_t handle_count; /* number of handles on this object */
672 /** Related drm device */
673 struct drm_device *dev;
675 /** File representing the shmem storage: filp in Linux parlance */
679 struct drm_hash_item map_list;
682 * Size of the object, in bytes. Immutable over the object's
688 * Global name for this object, starts at 1. 0 means unnamed.
689 * Access is covered by the object_name_lock in the related drm_device
694 * Memory domains. These monitor which caches contain read/write data
695 * related to the object. When transitioning from one set of domains
696 * to another, the driver is called to ensure that caches are suitably
697 * flushed and invalidated
699 uint32_t read_domains;
700 uint32_t write_domain;
703 * While validating an exec operation, the
704 * new read/write domain values are computed here.
705 * They will be transferred to the above values
706 * at the point that any cache flushing occurs
708 uint32_t pending_read_domains;
709 uint32_t pending_write_domain;
711 void *driver_private;
714 /* dma buf exported from this GEM object */
715 struct dma_buf *export_dma_buf;
717 /* dma buf attachment backing this object */
718 struct dma_buf_attachment *import_attach;
719 #endif /* DUMBBELL_WIP */
722 #include "drm_crtc.h"
724 /* per-master structure */
727 struct kref refcount; /* refcount for this master */
729 struct list_head head; /**< each minor contains a list of masters */
730 struct drm_minor *minor; /**< link back to minor we are a master for */
732 char *unique; /**< Unique identifier: e.g., busid */
733 int unique_len; /**< Length of unique field */
734 int unique_size; /**< amount allocated */
736 int blocked; /**< Blocked due to VC switch? */
738 /** \name Authentication */
740 struct drm_open_hash magiclist;
741 struct list_head magicfree;
744 struct drm_lock_data lock; /**< Information on hardware lock */
746 void *driver_priv; /**< Private structure for driver to use */
749 /* Size of ringbuffer for vblank timestamps. Just double-buffer
750 * in initial implementation.
752 #define DRM_VBLANKTIME_RBSIZE 2
754 /* Flags and return codes for get_vblank_timestamp() driver function. */
755 #define DRM_CALLED_FROM_VBLIRQ 1
756 #define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0)
757 #define DRM_VBLANKTIME_INVBL (1 << 1)
759 /* get_scanout_position() return flags */
760 #define DRM_SCANOUTPOS_VALID (1 << 0)
761 #define DRM_SCANOUTPOS_INVBL (1 << 1)
762 #define DRM_SCANOUTPOS_ACCURATE (1 << 2)
765 #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1)
768 #define upper_32_bits(n) ((u32)(((n) >> 16) >> 16))
771 int (*load)(struct drm_device *, unsigned long flags);
772 int (*use_msi)(struct drm_device *, unsigned long flags);
773 int (*firstopen)(struct drm_device *);
774 int (*open)(struct drm_device *, struct drm_file *);
775 void (*preclose)(struct drm_device *, struct drm_file *file_priv);
776 void (*postclose)(struct drm_device *, struct drm_file *);
777 void (*lastclose)(struct drm_device *);
778 int (*unload)(struct drm_device *);
779 void (*reclaim_buffers_locked)(struct drm_device *,
780 struct drm_file *file_priv);
781 int (*dma_ioctl)(struct drm_device *dev, void *data,
782 struct drm_file *file_priv);
783 void (*dma_ready)(struct drm_device *);
784 int (*dma_quiescent)(struct drm_device *);
785 int (*dma_flush_block_and_flush)(struct drm_device *, int context,
786 enum drm_lock_flags flags);
787 int (*dma_flush_unblock)(struct drm_device *, int context,
788 enum drm_lock_flags flags);
789 int (*context_ctor)(struct drm_device *dev, int context);
790 int (*context_dtor)(struct drm_device *dev, int context);
791 int (*kernel_context_switch)(struct drm_device *dev, int old,
793 int (*kernel_context_switch_unlock)(struct drm_device *dev);
794 void (*irq_preinstall)(struct drm_device *dev);
795 int (*irq_postinstall)(struct drm_device *dev);
796 void (*irq_uninstall)(struct drm_device *dev);
797 void (*irq_handler)(DRM_IRQ_ARGS);
799 u32 (*get_vblank_counter)(struct drm_device *dev, int crtc);
800 int (*enable_vblank)(struct drm_device *dev, int crtc);
801 void (*disable_vblank)(struct drm_device *dev, int crtc);
802 int (*get_scanout_position)(struct drm_device *dev, int crtc,
803 int *vpos, int *hpos);
805 int (*get_vblank_timestamp)(struct drm_device *dev, int crtc,
806 int *max_error, struct timeval *vblank_time,
809 int (*gem_init_object)(struct drm_gem_object *obj);
810 void (*gem_free_object)(struct drm_gem_object *obj);
811 int (*gem_open_object)(struct drm_gem_object *, struct drm_file *);
812 void (*gem_close_object)(struct drm_gem_object *, struct drm_file *);
814 struct cdev_pager_ops *gem_pager_ops;
816 int (*dumb_create)(struct drm_file *file_priv,
817 struct drm_device *dev, struct drm_mode_create_dumb *args);
818 int (*dumb_map_offset)(struct drm_file *file_priv,
819 struct drm_device *dev, uint32_t handle, uint64_t *offset);
820 int (*dumb_destroy)(struct drm_file *file_priv,
821 struct drm_device *dev, uint32_t handle);
823 int (*sysctl_init)(struct drm_device *dev,
824 struct sysctl_ctx_list *ctx, struct sysctl_oid *top);
825 void (*sysctl_cleanup)(struct drm_device *dev);
827 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */
830 * Called by \c drm_device_is_agp. Typically used to determine if a
831 * card is really attached to AGP or not.
833 * \param dev DRM device handle
836 * One of three values is returned depending on whether or not the
837 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
838 * (return of 1), or may or may not be AGP (return of 2).
840 int (*device_is_agp) (struct drm_device * dev);
842 drm_ioctl_desc_t *ioctls;
843 #ifdef COMPAT_FREEBSD32
844 drm_ioctl_desc_t *compat_ioctls;
845 int *compat_ioctls_nr;
853 const char *name; /* Simple driver name */
854 const char *desc; /* Longer driver name */
855 const char *date; /* Date of last major changes. */
862 * DRM minor structure. This structure represents a drm minor number.
865 int index; /**< Minor device number */
866 int type; /**< Control or render */
867 device_t kdev; /**< OS device */
868 struct drm_device *dev;
870 struct drm_master *master; /* currently active master for this node */
871 struct list_head master_list;
872 struct drm_mode_group mode_group;
875 /* mode specified on the command line */
876 struct drm_cmdline_mode {
878 bool refresh_specified;
887 enum drm_connector_force force;
891 struct drm_pending_vblank_event {
892 struct drm_pending_event base;
894 struct drm_event_vblank event;
897 /* Length for the array of resource pointers for drm_get_resource_*. */
898 #define DRM_MAX_PCI_RESOURCE 6
901 * DRM device structure. This structure represent a complete card that
902 * may contain multiple heads.
905 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */
907 uint16_t pci_device; /* PCI device id */
908 uint16_t pci_vendor; /* PCI vendor id */
909 uint16_t pci_subdevice; /* PCI subsystem device id */
910 uint16_t pci_subvendor; /* PCI subsystem vendor id */
912 char *unique; /* Unique identifier: e.g., busid */
913 int unique_len; /* Length of unique field */
914 struct cdev *devnode; /* Device number for mknod */
915 int if_version; /* Highest interface version set */
917 int flags; /* Flags to open(2) */
920 struct spinlock dma_lock; /* protects dev->dma */
921 struct lwkt_serialize irq_lock; /* protects irq condition checks */
922 struct lock dev_lock; /* protects everything else */
923 struct lock dev_struct_lock;
926 int open_count; /* Outstanding files open */
927 int buf_use; /* Buffers in use -- cannot alloc */
929 /* Performance counters */
930 unsigned long counters;
931 enum drm_stat_type types[15];
935 drm_magic_head_t magiclist[DRM_HASH_SIZE];
939 struct lock struct_mutex; /**< For others */
942 struct list_head filelist;
944 /** \name Memory management */
946 struct list_head maplist; /**< Linked list of regions */
947 struct unrhdr *map_unrhdr;
949 drm_local_map_t **context_sareas;
952 struct drm_lock_data lock; /* Information on hardware lock */
954 /* DMA queues (contexts) */
955 drm_device_dma_t *dma; /* Optional pointer for DMA support */
957 /* Context support */
958 int irq; /* Interrupt used by board */
959 int msi_enabled; /* MSI enabled */
960 int irqrid; /* Interrupt used by board */
961 struct resource *irqr; /* Resource for interrupt used by board */
962 void *irqh; /* Handle from bus_setup_intr */
964 /* Storage of resource pointers for drm_get_resource_* */
965 struct resource *pcir[DRM_MAX_PCI_RESOURCE];
966 int pcirid[DRM_MAX_PCI_RESOURCE];
973 /** \name Context support */
975 int irq_enabled; /**< True if irq handler is enabled */
976 __volatile__ long context_flag; /**< Context swapping flag */
977 int last_context; /**< Last current context */
982 struct sigio *buf_sigio; /* Processes waiting for SIGIO */
985 struct drm_sysctl_info *sysctl;
990 struct device *dev; /**< Device structure */
992 drm_sg_mem_t *sg; /* Scatter gather memory */
993 unsigned long *ctx_bitmap;
999 * At load time, disabling the vblank interrupt won't be allowed since
1000 * old clients may not call the modeset ioctl and therefore misbehave.
1001 * Once the modeset ioctl *has* been called though, we can safely
1002 * disable them when unused.
1004 int vblank_disable_allowed;
1006 wait_queue_head_t *vbl_queue; /**< VBLANK wait queue */
1007 atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */
1008 struct timeval *_vblank_time; /**< timestamp of current vblank_count (drivers must alloc right number of fields) */
1009 struct lock vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */
1010 struct lock vbl_lock;
1011 atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */
1012 u32 *last_vblank; /* protected by dev->vbl_lock, used */
1013 /* for wraparound handling */
1014 int *vblank_enabled; /* so we don't call enable more than
1016 int *vblank_inmodeset; /* Display driver is setting mode */
1017 u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */
1018 struct timer_list vblank_disable_timer;
1020 u32 max_vblank_count; /**< size of vblank counter register */
1025 struct list_head vblank_event_list;
1026 struct lock event_lock;
1028 struct drm_driver *driver;
1029 struct drm_local_map *agp_buffer_map;
1030 unsigned int agp_buffer_token;
1031 struct drm_minor *control; /**< Control node for card */
1032 struct drm_minor *primary; /**< render type primary screen head */
1034 struct drm_mode_config mode_config; /**< Current mode config */
1036 /** \name GEM information */
1038 struct lock object_name_lock;
1039 struct idr object_name_idr;
1043 void *sysctl_private;
1044 char busid_str[128];
1047 int switch_power_state;
1050 #define DRM_SWITCH_POWER_ON 0
1051 #define DRM_SWITCH_POWER_OFF 1
1052 #define DRM_SWITCH_POWER_CHANGING 2
1054 static __inline__ int drm_core_check_feature(struct drm_device *dev,
1057 return ((dev->driver->driver_features & feature) ? 1 : 0);
1061 static inline int drm_core_has_AGP(struct drm_device *dev)
1063 return drm_core_check_feature(dev, DRIVER_USE_AGP);
1066 #define drm_core_has_AGP(dev) (0)
1076 DMI_PRODUCT_VERSION,
1083 DMI_BOARD_ASSET_TAG,
1086 DMI_CHASSIS_VERSION,
1088 DMI_CHASSIS_ASSET_TAG,
1092 struct dmi_strmatch {
1097 struct dmi_system_id {
1098 int (*callback)(const struct dmi_system_id *);
1100 struct dmi_strmatch matches[4];
1102 #define DMI_MATCH(a, b) {(a), (b)}
1103 bool dmi_check_system(const struct dmi_system_id *);
1105 extern int drm_notyet_flag;
1106 extern int drm_debug;
1108 extern unsigned int drm_vblank_offdelay;
1109 extern unsigned int drm_timestamp_precision;
1110 extern unsigned int drm_timestamp_monotonic;
1112 /* Device setup support (drm_drv.c) */
1113 int drm_probe(device_t kdev, drm_pci_id_list_t *idlist);
1114 int drm_attach(device_t kdev, drm_pci_id_list_t *idlist);
1115 int drm_create_cdevs(device_t kdev);
1116 int drm_detach(device_t kdev);
1117 d_ioctl_t drm_ioctl;
1119 d_close_t drm_close;
1121 d_kqfilter_t drm_kqfilter;
1123 d_mmap_single_t drm_mmap_single;
1124 extern drm_local_map_t *drm_getsarea(struct drm_device *dev);
1126 void drm_cdevpriv_dtor(void *cd);
1128 void drm_event_wakeup(struct drm_pending_event *e);
1130 int drm_add_busid_modesetting(struct drm_device *dev,
1131 struct sysctl_ctx_list *ctx, struct sysctl_oid *top);
1133 /* File operations helpers (drm_fops.c) */
1134 extern int drm_open_helper(struct cdev *kdev, int flags, int fmt,
1136 struct drm_device *dev,
1138 extern struct drm_file *drm_find_file_by_proc(struct drm_device *dev,
1142 extern int drm_gem_prime_handle_to_fd(struct drm_device *dev,
1143 struct drm_file *file_priv, uint32_t handle, uint32_t flags,
1145 extern int drm_gem_prime_fd_to_handle(struct drm_device *dev,
1146 struct drm_file *file_priv, int prime_fd, uint32_t *handle);
1148 extern int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data,
1149 struct drm_file *file_priv);
1150 extern int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data,
1151 struct drm_file *file_priv);
1158 extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, vm_page_t *pages,
1159 dma_addr_t *addrs, int max_pages);
1160 #endif /* DUMBBELL_WIP */
1161 extern struct sg_table *drm_prime_pages_to_sg(vm_page_t *pages, int nr_pages);
1162 extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg);
1165 void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv);
1166 void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv);
1167 int drm_prime_add_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t handle);
1168 int drm_prime_lookup_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t *handle);
1169 void drm_prime_remove_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf);
1171 int drm_prime_add_dma_buf(struct drm_device *dev, struct drm_gem_object *obj);
1172 int drm_prime_lookup_obj(struct drm_device *dev, struct dma_buf *buf,
1173 struct drm_gem_object **obj);
1174 #endif /* DUMBBELL_WIP */
1176 /* Memory management support (drm_memory.c) */
1177 void drm_mem_init(void);
1178 void drm_mem_uninit(void);
1179 void *drm_ioremap_wc(struct drm_device *dev, drm_local_map_t *map);
1180 void *drm_ioremap(struct drm_device *dev, drm_local_map_t *map);
1181 void drm_ioremapfree(drm_local_map_t *map);
1182 int drm_mtrr_add(unsigned long offset, size_t size, int flags);
1183 int drm_mtrr_del(int handle, unsigned long offset, size_t size, int flags);
1185 int drm_ctxbitmap_init(struct drm_device *dev);
1186 void drm_ctxbitmap_cleanup(struct drm_device *dev);
1187 void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
1188 int drm_ctxbitmap_next(struct drm_device *dev);
1190 /* Locking IOCTL support (drm_lock.c) */
1191 int drm_lock_take(struct drm_lock_data *lock_data,
1192 unsigned int context);
1193 int drm_lock_transfer(struct drm_lock_data *lock_data,
1194 unsigned int context);
1195 int drm_lock_free(struct drm_lock_data *lock_data,
1196 unsigned int context);
1199 * These are exported to drivers so that they can implement fencing using
1200 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
1203 unsigned long drm_get_resource_start(struct drm_device *dev,
1204 unsigned int resource);
1205 unsigned long drm_get_resource_len(struct drm_device *dev,
1206 unsigned int resource);
1207 void drm_rmmap(struct drm_device *dev, drm_local_map_t *map);
1208 int drm_order(unsigned long size);
1209 int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc *request);
1210 int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc *request);
1211 extern int drm_addmap(struct drm_device *dev, resource_size_t offset,
1212 unsigned int size, enum drm_map_type type,
1213 enum drm_map_flags flags, struct drm_local_map **map_ptr);
1215 /* DMA support (drm_dma.c) */
1216 int drm_dma_setup(struct drm_device *dev);
1217 void drm_dma_takedown(struct drm_device *dev);
1218 void drm_free_buffer(struct drm_device *dev, drm_buf_t *buf);
1219 void drm_reclaim_buffers(struct drm_device *dev, struct drm_file *file_priv);
1220 #define drm_core_reclaim_buffers drm_reclaim_buffers
1222 /* IRQ support (drm_irq.h) */
1223 int drm_irq_install(struct drm_device *dev);
1224 int drm_irq_uninstall(struct drm_device *dev);
1225 void drm_driver_irq_preinstall(struct drm_device *dev);
1226 void drm_driver_irq_postinstall(struct drm_device *dev);
1227 void drm_driver_irq_uninstall(struct drm_device *dev);
1229 void drm_vblank_pre_modeset(struct drm_device *dev, int crtc);
1230 void drm_vblank_post_modeset(struct drm_device *dev, int crtc);
1231 int drm_modeset_ctl(struct drm_device *dev, void *data,
1232 struct drm_file *file_priv);
1234 extern int drm_vblank_init(struct drm_device *dev, int num_crtcs);
1235 extern int drm_wait_vblank(struct drm_device *dev, void *data,
1236 struct drm_file *filp);
1237 extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq);
1238 extern u32 drm_vblank_count(struct drm_device *dev, int crtc);
1239 extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc,
1240 struct timeval *vblanktime);
1241 extern void drm_send_vblank_event(struct drm_device *dev, int crtc,
1242 struct drm_pending_vblank_event *e);
1243 extern bool drm_handle_vblank(struct drm_device *dev, int crtc);
1244 void drm_handle_vblank_events(struct drm_device *dev, int crtc);
1245 extern int drm_vblank_get(struct drm_device *dev, int crtc);
1246 extern void drm_vblank_put(struct drm_device *dev, int crtc);
1247 extern void drm_vblank_off(struct drm_device *dev, int crtc);
1248 extern void drm_vblank_cleanup(struct drm_device *dev);
1249 extern u32 drm_get_last_vbltimestamp(struct drm_device *dev, int crtc,
1250 struct timeval *tvblank, unsigned flags);
1251 extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev,
1252 int crtc, int *max_error,
1253 struct timeval *vblank_time,
1255 struct drm_crtc *refcrtc);
1256 extern void drm_calc_timestamping_constants(struct drm_crtc *crtc);
1258 /* AGP/PCI Express/GART support (drm_agpsupport.c) */
1259 int drm_device_is_agp(struct drm_device *dev);
1260 int drm_device_is_pcie(struct drm_device *dev);
1261 drm_agp_head_t *drm_agp_init(void);
1262 int drm_agp_acquire(struct drm_device *dev);
1263 int drm_agp_release(struct drm_device *dev);
1264 int drm_agp_info(struct drm_device * dev, struct drm_agp_info *info);
1265 int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode);
1266 void *drm_agp_allocate_memory(size_t pages, u32 type);
1267 int drm_agp_free_memory(void *handle);
1268 int drm_agp_bind_memory(void *handle, off_t start);
1269 int drm_agp_unbind_memory(void *handle);
1270 int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request);
1271 int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request);
1272 int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
1273 int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request);
1275 /* Scatter Gather Support (drm_scatter.c) */
1276 void drm_sg_cleanup(drm_sg_mem_t *entry);
1277 int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request);
1279 /* sysctl support (drm_sysctl.h) */
1280 extern int drm_sysctl_init(struct drm_device *dev);
1281 extern int drm_sysctl_cleanup(struct drm_device *dev);
1283 /* ATI PCIGART support (ati_pcigart.c) */
1284 int drm_ati_pcigart_init(struct drm_device *dev,
1285 struct drm_ati_pcigart_info *gart_info);
1286 int drm_ati_pcigart_cleanup(struct drm_device *dev,
1287 struct drm_ati_pcigart_info *gart_info);
1289 /* Cache management (drm_memory.c) */
1290 void drm_clflush_pages(vm_page_t *pages, unsigned long num_pages);
1292 /* Locking IOCTL support (drm_drv.c) */
1293 int drm_lock(struct drm_device *dev, void *data,
1294 struct drm_file *file_priv);
1295 int drm_unlock(struct drm_device *dev, void *data,
1296 struct drm_file *file_priv);
1297 int drm_version(struct drm_device *dev, void *data,
1298 struct drm_file *file_priv);
1299 int drm_setversion(struct drm_device *dev, void *data,
1300 struct drm_file *file_priv);
1302 /* Misc. IOCTL support (drm_ioctl.c) */
1303 int drm_irq_by_busid(struct drm_device *dev, void *data,
1304 struct drm_file *file_priv);
1305 int drm_getunique(struct drm_device *dev, void *data,
1306 struct drm_file *file_priv);
1307 int drm_setunique(struct drm_device *dev, void *data,
1308 struct drm_file *file_priv);
1309 int drm_getmap(struct drm_device *dev, void *data,
1310 struct drm_file *file_priv);
1311 int drm_getclient(struct drm_device *dev, void *data,
1312 struct drm_file *file_priv);
1313 int drm_getstats(struct drm_device *dev, void *data,
1314 struct drm_file *file_priv);
1315 int drm_getcap(struct drm_device *dev, void *data,
1316 struct drm_file *file_priv);
1317 int drm_noop(struct drm_device *dev, void *data,
1318 struct drm_file *file_priv);
1320 /* Context IOCTL support (drm_context.c) */
1321 int drm_resctx(struct drm_device *dev, void *data,
1322 struct drm_file *file_priv);
1323 int drm_addctx(struct drm_device *dev, void *data,
1324 struct drm_file *file_priv);
1325 int drm_modctx(struct drm_device *dev, void *data,
1326 struct drm_file *file_priv);
1327 int drm_getctx(struct drm_device *dev, void *data,
1328 struct drm_file *file_priv);
1329 int drm_switchctx(struct drm_device *dev, void *data,
1330 struct drm_file *file_priv);
1331 int drm_newctx(struct drm_device *dev, void *data,
1332 struct drm_file *file_priv);
1333 int drm_rmctx(struct drm_device *dev, void *data,
1334 struct drm_file *file_priv);
1335 int drm_setsareactx(struct drm_device *dev, void *data,
1336 struct drm_file *file_priv);
1337 int drm_getsareactx(struct drm_device *dev, void *data,
1338 struct drm_file *file_priv);
1340 /* Authentication IOCTL support (drm_auth.c) */
1341 int drm_getmagic(struct drm_device *dev, void *data,
1342 struct drm_file *file_priv);
1343 int drm_authmagic(struct drm_device *dev, void *data,
1344 struct drm_file *file_priv);
1346 /* Buffer management support (drm_bufs.c) */
1347 int drm_addmap_ioctl(struct drm_device *dev, void *data,
1348 struct drm_file *file_priv);
1349 int drm_rmmap_ioctl(struct drm_device *dev, void *data,
1350 struct drm_file *file_priv);
1351 int drm_addbufs(struct drm_device *dev, void *data,
1352 struct drm_file *file_priv);
1353 int drm_infobufs(struct drm_device *dev, void *data,
1354 struct drm_file *file_priv);
1355 int drm_markbufs(struct drm_device *dev, void *data,
1356 struct drm_file *file_priv);
1357 int drm_freebufs(struct drm_device *dev, void *data,
1358 struct drm_file *file_priv);
1359 int drm_mapbufs(struct drm_device *dev, void *data,
1360 struct drm_file *file_priv);
1362 /* DMA support (drm_dma.c) */
1363 int drm_dma(struct drm_device *dev, void *data, struct drm_file *file_priv);
1365 /* IRQ support (drm_irq.c) */
1366 int drm_control(struct drm_device *dev, void *data,
1367 struct drm_file *file_priv);
1369 /* AGP/GART support (drm_agpsupport.c) */
1370 int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
1371 struct drm_file *file_priv);
1372 int drm_agp_release_ioctl(struct drm_device *dev, void *data,
1373 struct drm_file *file_priv);
1374 int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
1375 struct drm_file *file_priv);
1376 int drm_agp_info_ioctl(struct drm_device *dev, void *data,
1377 struct drm_file *file_priv);
1378 int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
1379 struct drm_file *file_priv);
1380 int drm_agp_free_ioctl(struct drm_device *dev, void *data,
1381 struct drm_file *file_priv);
1382 int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
1383 struct drm_file *file_priv);
1384 int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
1385 struct drm_file *file_priv);
1387 /* Stub support (drm_stub.h) */
1388 extern int drm_setmaster_ioctl(struct drm_device *dev, void *data,
1389 struct drm_file *file_priv);
1390 extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
1391 struct drm_file *file_priv);
1393 /* Scatter Gather Support (drm_scatter.c) */
1394 int drm_sg_alloc_ioctl(struct drm_device *dev, void *data,
1395 struct drm_file *file_priv);
1396 int drm_sg_free(struct drm_device *dev, void *data,
1397 struct drm_file *file_priv);
1399 /* consistent PCI memory functions (drm_pci.c) */
1400 drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
1401 size_t align, dma_addr_t maxaddr);
1402 void drm_pci_free(struct drm_device *dev, drm_dma_handle_t *dmah);
1404 /* sysfs support (drm_sysfs.c) */
1405 extern char *drm_get_connector_status_name(enum drm_connector_status status);
1407 /* Graphics Execution Manager library functions (drm_gem.c) */
1408 int drm_gem_init(struct drm_device *dev);
1409 void drm_gem_destroy(struct drm_device *dev);
1410 void drm_gem_object_release(struct drm_gem_object *obj);
1411 void drm_gem_object_free(struct kref *kref);
1413 int drm_gem_close_ioctl(struct drm_device *dev, void *data,
1414 struct drm_file *file_priv);
1415 int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
1416 struct drm_file *file_priv);
1417 int drm_gem_open_ioctl(struct drm_device *dev, void *data,
1418 struct drm_file *file_priv);
1419 void drm_gem_object_handle_free(struct drm_gem_object *obj);
1421 #include <drm/drm_global.h>
1424 drm_gem_object_reference(struct drm_gem_object *obj)
1426 kref_get(&obj->refcount);
1430 drm_gem_object_unreference(struct drm_gem_object *obj)
1433 kref_put(&obj->refcount, drm_gem_object_free);
1437 drm_gem_object_unreference_unlocked(struct drm_gem_object *obj)
1440 struct drm_device *dev = obj->dev;
1442 kref_put(&obj->refcount, drm_gem_object_free);
1447 int drm_gem_handle_create(struct drm_file *file_priv,
1448 struct drm_gem_object *obj,
1450 int drm_gem_handle_delete(struct drm_file *filp, u32 handle);
1453 drm_gem_object_handle_reference(struct drm_gem_object *obj)
1455 drm_gem_object_reference(obj);
1456 atomic_inc(&obj->handle_count);
1460 drm_gem_object_handle_unreference(struct drm_gem_object *obj)
1465 if (atomic_read(&obj->handle_count) == 0)
1468 * Must bump handle count first as this may be the last
1469 * ref, in which case the object would disappear before we
1470 * checked for a name
1472 if (atomic_dec_and_test(&obj->handle_count))
1473 drm_gem_object_handle_free(obj);
1474 drm_gem_object_unreference(obj);
1478 drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj)
1483 if (atomic_read(&obj->handle_count) == 0)
1487 * Must bump handle count first as this may be the last
1488 * ref, in which case the object would disappear before we
1489 * checked for a name
1492 if (atomic_dec_and_test(&obj->handle_count))
1493 drm_gem_object_handle_free(obj);
1494 drm_gem_object_unreference_unlocked(obj);
1497 int drm_gem_object_init(struct drm_device *dev, struct drm_gem_object *obj,
1499 int drm_gem_private_object_init(struct drm_device *dev,
1500 struct drm_gem_object *obj, size_t size);
1501 struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev,
1503 struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev,
1504 struct drm_file *file_priv, uint32_t handle);
1506 void drm_gem_open(struct drm_device *dev, struct drm_file *file_priv);
1507 void drm_gem_release(struct drm_device *dev, struct drm_file *file_priv);
1509 int drm_gem_create_mmap_offset(struct drm_gem_object *obj);
1510 void drm_gem_free_mmap_offset(struct drm_gem_object *obj);
1511 int drm_gem_mmap_single(struct drm_device *dev, vm_ooffset_t *offset,
1512 vm_size_t size, struct vm_object **obj_res, int nprot);
1513 void drm_gem_pager_dtr(void *obj);
1515 struct ttm_bo_device;
1516 int ttm_bo_mmap_single(struct ttm_bo_device *bdev, vm_ooffset_t *offset,
1517 vm_size_t size, struct vm_object **obj_res, int nprot);
1518 struct ttm_buffer_object;
1519 void ttm_bo_release_mmap(struct ttm_buffer_object *bo);
1521 void drm_device_lock_mtx(struct drm_device *dev);
1522 void drm_device_unlock_mtx(struct drm_device *dev);
1523 int drm_device_sleep_mtx(struct drm_device *dev, void *chan, int flags,
1524 const char *msg, int timeout);
1525 void drm_device_assert_mtx_locked(struct drm_device *dev);
1526 void drm_device_assert_mtx_unlocked(struct drm_device *dev);
1528 void drm_device_lock_struct(struct drm_device *dev);
1529 void drm_device_unlock_struct(struct drm_device *dev);
1530 int drm_device_sleep_struct(struct drm_device *dev, void *chan, int flags,
1531 const char *msg, int timeout);
1532 void drm_device_assert_struct_locked(struct drm_device *dev);
1533 void drm_device_assert_struct_unlocked(struct drm_device *dev);
1535 void drm_compat_locking_init(struct drm_device *dev);
1536 void drm_sleep_locking_init(struct drm_device *dev);
1539 bool drm_mode_parse_command_line_for_connector(const char *mode_option,
1540 struct drm_connector *connector, struct drm_cmdline_mode *mode);
1541 struct drm_display_mode *drm_mode_create_from_cmdline_mode(
1542 struct drm_device *dev, struct drm_cmdline_mode *cmd);
1544 /* Inline replacements for drm_alloc and friends */
1545 static __inline__ void *
1546 drm_alloc(size_t size, struct malloc_type *area)
1548 return kmalloc(size, area, M_NOWAIT);
1551 static __inline__ void *
1552 drm_calloc(size_t nmemb, size_t size, struct malloc_type *area)
1554 return kmalloc(size * nmemb, area, M_NOWAIT | M_ZERO);
1557 static __inline__ void *
1558 drm_realloc(void *oldpt, size_t oldsize, size_t size,
1559 struct malloc_type *area)
1562 res = krealloc(oldpt, size, area, M_NOWAIT);
1563 if (res == NULL && oldpt != NULL)
1568 static __inline__ void
1569 drm_free(void *pt, struct malloc_type *area)
1575 /* Inline replacements for DRM_IOREMAP macros */
1576 static __inline__ void
1577 drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev)
1579 map->virtual = drm_ioremap_wc(dev, map);
1581 static __inline__ void
1582 drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev)
1584 map->virtual = drm_ioremap(dev, map);
1586 static __inline__ void
1587 drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev)
1589 if ( map->virtual && map->size )
1590 drm_ioremapfree(map);
1593 static __inline__ struct drm_local_map *
1594 drm_core_findmap(struct drm_device *dev, unsigned long offset)
1596 struct drm_map_list *_entry;
1598 list_for_each_entry(_entry, &dev->maplist, head) {
1599 if (offset == (unsigned long)_entry->map->handle)
1605 static __inline__ void drm_core_dropmap(struct drm_map *map)
1609 #include <drm/drm_mem_util.h>
1611 /* FreeBSD compatibility macros */
1612 #define VM_OBJECT_WLOCK(object) VM_OBJECT_LOCK(object)
1613 #define VM_OBJECT_WUNLOCK(object) VM_OBJECT_UNLOCK(object)
1615 #define DRM_PCIE_SPEED_25 1
1616 #define DRM_PCIE_SPEED_50 2
1617 #define DRM_PCIE_SPEED_80 4
1619 extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask);
1621 #define drm_can_sleep() (DRM_HZ & 1)
1623 #endif /* __KERNEL__ */
1624 #endif /* _DRM_P_H_ */