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/timer.h>
102 #include <linux/types.h>
103 #include <linux/wait.h>
105 #include <asm/uaccess.h>
110 #include "drm_os_freebsd.h"
111 #include "drm_hashtab.h"
114 #define DRM_UT_CORE 0x01
115 #define DRM_UT_DRIVER 0x02
116 #define DRM_UT_KMS 0x04
117 #define DRM_UT_PRIME 0x08
121 #define DRM_DEBUG_DEFAULT_ON 1
122 #endif /* DRM_DEBUG */
124 #define DRM_DEBUGBITS_DEBUG 0x1
125 #define DRM_DEBUGBITS_KMS 0x2
126 #define DRM_DEBUGBITS_FAILED_IOCTL 0x4
131 /***********************************************************************/
132 /** \name DRM template customization defaults */
135 /* driver capabilities and requirements mask */
136 #define DRIVER_USE_AGP 0x1
137 #define DRIVER_REQUIRE_AGP 0x2
138 #define DRIVER_USE_MTRR 0x4
139 #define DRIVER_PCI_DMA 0x8
140 #define DRIVER_SG 0x10
141 #define DRIVER_HAVE_DMA 0x20
142 #define DRIVER_HAVE_IRQ 0x40
143 #define DRIVER_IRQ_SHARED 0x80
144 #define DRIVER_IRQ_VBL 0x100
145 #define DRIVER_DMA_QUEUE 0x200
146 #define DRIVER_FB_DMA 0x400
147 #define DRIVER_IRQ_VBL2 0x800
148 #define DRIVER_GEM 0x1000
149 #define DRIVER_MODESET 0x2000
150 #define DRIVER_PRIME 0x4000
151 #define DRIVER_LOCKLESS_IRQ 0x8000
153 /***********************************************************************/
154 /** \name Begin the DRM... */
157 #define DRM_HASH_SIZE 16 /* Size of key hash table */
158 #define DRM_KERNEL_CONTEXT 0 /* Change drm_resctx if changed */
159 #define DRM_RESERVED_CONTEXTS 1 /* Change drm_resctx if changed */
161 #define DRM_GEM_MAPPING_MASK (3ULL << 62)
162 #define DRM_GEM_MAPPING_KEY (2ULL << 62) /* Non-canonical address form */
163 #define DRM_GEM_MAX_IDX 0x3fffff
164 #define DRM_GEM_MAPPING_IDX(o) (((o) >> 40) & DRM_GEM_MAX_IDX)
165 #define DRM_GEM_MAPPING_OFF(i) (((uint64_t)(i)) << 40)
166 #define DRM_GEM_MAPPING_MAPOFF(o) \
167 ((o) & ~(DRM_GEM_MAPPING_OFF(DRM_GEM_MAX_IDX) | DRM_GEM_MAPPING_KEY))
169 MALLOC_DECLARE(DRM_MEM_DMA);
170 MALLOC_DECLARE(DRM_MEM_SAREA);
171 MALLOC_DECLARE(DRM_MEM_DRIVER);
172 MALLOC_DECLARE(DRM_MEM_MAGIC);
173 MALLOC_DECLARE(DRM_MEM_MAPS);
174 MALLOC_DECLARE(DRM_MEM_BUFS);
175 MALLOC_DECLARE(DRM_MEM_SEGS);
176 MALLOC_DECLARE(DRM_MEM_PAGES);
177 MALLOC_DECLARE(DRM_MEM_FILES);
178 MALLOC_DECLARE(DRM_MEM_BUFLISTS);
179 MALLOC_DECLARE(DRM_MEM_AGPLISTS);
180 MALLOC_DECLARE(DRM_MEM_CTXBITMAP);
181 MALLOC_DECLARE(DRM_MEM_SGLISTS);
182 MALLOC_DECLARE(DRM_MEM_DRAWABLE);
183 MALLOC_DECLARE(DRM_MEM_MM);
184 MALLOC_DECLARE(DRM_MEM_HASHTAB);
185 MALLOC_DECLARE(DRM_MEM_KMS);
187 SYSCTL_DECL(_hw_drm);
189 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
191 /***********************************************************************/
192 /** \name Internal types and structures */
195 #define DRM_ARRAY_SIZE(x) NELEM(x)
196 #define DRM_MIN(a,b) ((a)<(b)?(a):(b))
197 #define DRM_MAX(a,b) ((a)>(b)?(a):(b))
199 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
201 #define __OS_HAS_AGP 1
203 #define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP)
204 #define DRM_DEV_UID 0
205 #define DRM_DEV_GID 0
207 #define DRM_WAKEUP(w) wakeup((void *)w)
208 #define DRM_WAKEUP_INT(w) wakeup(w)
209 #define DRM_INIT_WAITQUEUE(queue) do {(void)(queue);} while (0)
211 #define DRM_CURPROC curthread
212 #define DRM_STRUCTPROC struct thread
213 #define DRM_CURRENTPID (curproc != NULL ? curproc->p_pid : -1)
214 #define DRM_LOCK(dev) lockmgr(&(dev)->dev_struct_lock, LK_EXCLUSIVE)
215 #define DRM_UNLOCK(dev) lockmgr(&(dev)->dev_struct_lock, LK_RELEASE)
216 #define DRM_LOCK_SLEEP(dev, chan, flags, msg, timeout) \
217 (lksleep((chan), &(dev)->dev_struct_lock, (flags), (msg), (timeout)))
218 #if defined(INVARIANTS)
219 #define DRM_LOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->dev_struct_lock, curthread) != 0);
220 #define DRM_UNLOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->dev_struct_lock, curthread) == 0);
222 #define DRM_LOCK_ASSERT(d)
223 #define DRM_UNLOCK_ASSERT(d)
226 #define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS)
228 #define DRM_IRQ_ARGS void *arg
229 typedef void irqreturn_t;
230 #define IRQ_HANDLED /* nothing */
231 #define IRQ_NONE /* nothing */
238 #define DRM_AGP_MEM struct agp_memory_info
240 #define drm_get_device_from_kdev(_kdev) (_kdev->si_drv1)
242 #define PAGE_ALIGN(addr) round_page(addr)
243 /* DRM_SUSER returns true if the user is superuser */
244 #define DRM_SUSER(p) (priv_check(p, PRIV_DRIVER) == 0)
245 #define DRM_AGP_FIND_DEVICE() agp_find_device()
246 #define DRM_MTRR_WC MDF_WRITECOMBINE
247 #define jiffies ticks
248 #define jiffies_to_msecs(x) (((int64_t)(x)) * 1000 / hz)
249 #define msecs_to_jiffies(x) (((int64_t)(x)) * hz / 1000)
250 #define time_after(a,b) ((long)(b) - (long)(a) < 0)
251 #define time_after_eq(a,b) ((long)(b) - (long)(a) <= 0)
253 /* DRM_READMEMORYBARRIER() prevents reordering of reads.
254 * DRM_WRITEMEMORYBARRIER() prevents reordering of writes.
255 * DRM_MEMORYBARRIER() prevents reordering of reads and writes.
257 #define DRM_READMEMORYBARRIER() cpu_lfence()
258 #define DRM_WRITEMEMORYBARRIER() cpu_sfence()
259 #define DRM_MEMORYBARRIER() cpu_mfence()
261 #define DRM_READ8(map, offset) \
262 *(volatile u_int8_t *)(((vm_offset_t)(map)->virtual) + \
263 (vm_offset_t)(offset))
264 #define DRM_READ16(map, offset) \
265 le16toh(*(volatile u_int16_t *)(((vm_offset_t)(map)->virtual) + \
266 (vm_offset_t)(offset)))
267 #define DRM_READ32(map, offset) \
268 le32toh(*(volatile u_int32_t *)(((vm_offset_t)(map)->virtual) + \
269 (vm_offset_t)(offset)))
270 #define DRM_READ64(map, offset) \
271 le64toh(*(volatile u_int64_t *)(((vm_offset_t)(map)->virtual) + \
272 (vm_offset_t)(offset)))
273 #define DRM_WRITE8(map, offset, val) \
274 *(volatile u_int8_t *)(((vm_offset_t)(map)->virtual) + \
275 (vm_offset_t)(offset)) = val
276 #define DRM_WRITE16(map, offset, val) \
277 *(volatile u_int16_t *)(((vm_offset_t)(map)->virtual) + \
278 (vm_offset_t)(offset)) = htole16(val)
279 #define DRM_WRITE32(map, offset, val) \
280 *(volatile u_int32_t *)(((vm_offset_t)(map)->virtual) + \
281 (vm_offset_t)(offset)) = htole32(val)
282 #define DRM_WRITE64(map, offset, val) \
283 *(volatile u_int64_t *)(((vm_offset_t)(map)->virtual) + \
284 (vm_offset_t)(offset)) = htole64(val)
286 #define DRM_VERIFYAREA_READ( uaddr, size ) \
287 (!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ))
289 #define DRM_COPY_TO_USER(user, kern, size) \
290 copyout(kern, user, size)
291 #define DRM_COPY_FROM_USER(kern, user, size) \
292 copyin(user, kern, size)
293 #define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \
294 copyin(arg2, arg1, arg3)
295 #define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \
296 copyout(arg2, arg1, arg3)
297 #define DRM_GET_USER_UNCHECKED(val, uaddr) \
298 ((val) = fuword32(uaddr), 0)
300 #define drm_can_sleep() (DRM_HZ & 1)
302 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
303 (_map) = (_dev)->context_sareas[_ctx]; \
306 #define LOCK_TEST_WITH_RETURN(dev, file_priv) \
308 if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) || \
309 dev->lock.file_priv != file_priv) { \
310 DRM_ERROR("%s called without lock held\n", \
316 /* Returns -errno to shared code */
317 #define DRM_WAIT_ON( ret, queue, timeout, condition ) \
318 for ( ret = 0 ; !ret && !(condition) ; ) { \
320 lwkt_serialize_enter(&dev->irq_lock); \
321 if (!(condition)) { \
322 tsleep_interlock(&(queue), PCATCH); \
323 lwkt_serialize_exit(&dev->irq_lock); \
324 ret = -tsleep(&(queue), PCATCH | PINTERLOCKED, \
325 "drmwtq", (timeout)); \
327 lwkt_serialize_exit(&dev->irq_lock); \
333 vm_page_unhold_pages(vm_page_t *ma, int count)
337 for (i = 0; i < count; i++)
338 vm_page_unhold(ma[i]);
341 int vm_phys_fictitious_reg_range(vm_paddr_t start, vm_paddr_t end,
342 vm_memattr_t memattr);
343 void vm_phys_fictitious_unreg_range(vm_paddr_t start, vm_paddr_t end);
344 vm_page_t vm_phys_fictitious_to_vm_page(vm_paddr_t pa);
346 #define DRM_ERROR(fmt, ...) \
347 kprintf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \
348 DRM_CURRENTPID, __func__ , ##__VA_ARGS__)
350 #define DRM_INFO(fmt, ...) kprintf("info: [" DRM_NAME "] " fmt , ##__VA_ARGS__)
352 #define DRM_DEBUG(fmt, ...) do { \
353 if ((drm_debug & DRM_DEBUGBITS_DEBUG) != 0) \
354 kprintf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \
355 __func__ , ##__VA_ARGS__); \
358 #define DRM_DEBUG_KMS(fmt, ...) do { \
359 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \
360 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\
361 __func__ , ##__VA_ARGS__); \
364 #define DRM_DEBUG_DRIVER(fmt, ...) do { \
365 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \
366 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\
367 __func__ , ##__VA_ARGS__); \
370 #define dev_err(dev, fmt, ...) \
371 device_printf((dev), "error: " fmt, ## __VA_ARGS__)
372 #define dev_warn(dev, fmt, ...) \
373 device_printf((dev), "warning: " fmt, ## __VA_ARGS__)
374 #define dev_info(dev, fmt, ...) \
375 device_printf((dev), "info: " fmt, ## __VA_ARGS__)
376 #define dev_dbg(dev, fmt, ...) do { \
377 if ((drm_debug& DRM_DEBUGBITS_KMS) != 0) { \
378 device_printf((dev), "debug: " fmt, ## __VA_ARGS__); \
382 typedef struct drm_pci_id_list
390 struct drm_msi_blacklist_entry
396 #define DRM_IOCTL_NR(n) ((n) & 0xff)
399 #define DRM_MASTER 0x2
400 #define DRM_ROOT_ONLY 0x4
401 #define DRM_CONTROL_ALLOW 0x8
402 #define DRM_UNLOCKED 0x10
404 typedef struct drm_ioctl_desc {
406 int (*func)(struct drm_device *dev, void *data,
407 struct drm_file *file_priv);
409 unsigned int cmd_drv;
413 * Creates a driver or general drm_ioctl_desc array entry for the given
414 * ioctl, for use by drm_ioctl().
416 #define DRM_IOCTL_DEF(ioctl, func, flags) \
417 [DRM_IOCTL_NR(ioctl)] = {ioctl, func, flags}
419 #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \
420 [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl}
422 typedef struct drm_magic_entry {
424 struct drm_file *priv;
425 struct drm_magic_entry *next;
428 typedef struct drm_magic_head {
429 struct drm_magic_entry *head;
430 struct drm_magic_entry *tail;
433 typedef struct drm_buf {
434 int idx; /**< Index into master buflist */
435 int total; /**< Buffer size */
436 int order; /**< log-base-2(total) */
437 int used; /**< Amount of buffer in use (for DMA) */
438 unsigned long offset; /**< Byte offset (used internally) */
439 void *address; /**< Address of buffer */
440 unsigned long bus_address; /**< Bus address of buffer */
441 struct drm_buf *next; /**< Kernel-only: used for free list */
442 __volatile__ int waiting; /**< On kernel DMA queue */
443 __volatile__ int pending; /**< On hardware DMA queue */
444 struct drm_file *file_priv; /**< Private of holding file descr */
445 int context; /**< Kernel queue for this buffer */
446 int while_locked; /**< Dispatch this buffer while locked */
454 } list; /**< Which list we're on */
456 int dev_priv_size; /**< Size of buffer private storage */
457 void *dev_private; /**< Per-buffer private storage */
460 struct drm_freelist {
461 int initialized; /* Freelist in use */
462 atomic_t count; /* Number of free buffers */
463 drm_buf_t *next; /* End pointer */
465 wait_queue_head_t waiting; /**< Processes waiting on free bufs */
466 int low_mark; /* Low water mark */
467 int high_mark; /* High water mark */
470 typedef struct drm_dma_handle {
477 typedef struct drm_buf_entry {
482 drm_dma_handle_t **seglist;
485 struct drm_freelist freelist;
488 /* Event queued up for userspace to read */
489 struct drm_pending_event {
490 struct drm_event *event;
491 struct list_head link;
492 struct drm_file *file_priv;
493 pid_t pid; /* pid of requester, no guarantee it's valid by the time
494 we deliver the event, for tracing only */
495 void (*destroy)(struct drm_pending_event *event);
498 /* initial implementaton using a linked list - todo hashtab */
499 struct drm_prime_file_private {
500 struct list_head head;
503 #endif /* DUMBBELL_WIP */
506 /** File private data */
509 struct drm_device *dev;
514 unsigned long ioctl_count;
515 struct list_head lhead;
517 /** Mapping of mm object handles to object pointers. */
518 struct idr object_idr;
519 /** Lock for synchronization of access to object_idr. */
520 struct lock table_lock;
525 struct drm_master *masterp;
527 struct list_head fbs;
529 wait_queue_head_t event_wait;
530 struct list_head event_list;
533 struct drm_prime_file_private prime;
539 struct drm_lock_data {
540 struct drm_hw_lock *hw_lock; /**< Hardware lock */
541 /** Private of lock holder's file (NULL=kernel) */
542 struct drm_file *file_priv;
543 wait_queue_head_t lock_queue; /**< Queue of blocked processes */
544 unsigned long lock_time; /**< Time of last lock in jiffies */
547 /* This structure, in the struct drm_device, is always initialized while the
549 * is open. dev->dma_lock protects the incrementing of dev->buf_use, which
550 * when set marks that no further bufs may be allocated until device teardown
551 * occurs (when the last open of the device has closed). The high/low
552 * watermarks of bufs are only touched by the X Server, and thus not
553 * concurrently accessed, so no locking is needed.
555 typedef struct drm_device_dma {
557 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */
558 int buf_count; /**< total number of buffers */
559 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */
561 int page_count; /**< number of pages */
562 unsigned long *pagelist; /**< page list */
563 unsigned long byte_count;
565 _DRM_DMA_USE_AGP = 0x01,
566 _DRM_DMA_USE_SG = 0x02,
567 _DRM_DMA_USE_FB = 0x04,
568 _DRM_DMA_USE_PCI_RO = 0x08
573 typedef struct drm_agp_mem {
575 unsigned long bound; /* address */
577 struct drm_agp_mem *prev;
578 struct drm_agp_mem *next;
581 typedef struct drm_agp_head {
583 struct agp_info agp_info;
585 drm_agp_mem_t *memory;
591 int cant_use_aperture;
592 unsigned long page_mask;
595 typedef struct drm_sg_mem {
601 #define DRM_MAP_HANDLE_BITS (sizeof(void *) == 4 ? 4 : 24)
602 #define DRM_MAP_HANDLE_SHIFT (sizeof(void *) * 8 - DRM_MAP_HANDLE_BITS)
605 * Kernel side of a mapping
607 struct drm_local_map {
608 unsigned long offset; /* Physical address (0 for SAREA) */
609 unsigned long size; /* Physical size (bytes) */
610 enum drm_map_type type; /* Type of memory mapped */
611 enum drm_map_flags flags; /* Flags */
612 void *handle; /* User-space: "Handle" to pass to mmap */
613 /* Kernel-space: kernel-virtual address */
614 int mtrr; /* Boolean: MTRR used */
616 int rid; /* PCI resource ID for bus_space */
617 void *virtual; /* Kernel-space: kernel-virtual address */
618 struct resource *bsr;
620 bus_space_handle_t bsh;
621 drm_dma_handle_t *dmah;
622 TAILQ_ENTRY(drm_local_map) link;
625 typedef struct drm_local_map drm_local_map_t;
630 struct drm_map_list {
631 struct list_head head; /**< list head */
632 struct drm_hash_item hash;
633 struct drm_local_map *map; /**< mapping */
635 struct drm_master *master;
636 struct drm_mm_node *file_offset_node; /**< fake offset */
639 struct drm_vblank_info {
640 wait_queue_head_t queue; /* vblank wait queue */
641 atomic_t count; /* number of VBLANK interrupts */
642 /* (driver must alloc the right number of counters) */
643 atomic_t refcount; /* number of users of vblank interrupts */
644 u32 last; /* protected by dev->vbl_lock, used */
645 /* for wraparound handling */
646 int enabled; /* so we don't call enable more than */
647 /* once per disable */
648 int inmodeset; /* Display driver is setting mode */
651 /* location of GART table */
652 #define DRM_ATI_GART_MAIN 1
653 #define DRM_ATI_GART_FB 2
655 #define DRM_ATI_GART_PCI 1
656 #define DRM_ATI_GART_PCIE 2
657 #define DRM_ATI_GART_IGP 3
659 struct drm_ati_pcigart_info {
660 int gart_table_location;
664 dma_addr_t table_mask;
665 dma_addr_t member_mask;
666 struct drm_dma_handle *table_handle;
667 drm_local_map_t mapping;
669 struct drm_dma_handle *dmah; /* handle for ATI PCIGART table */
673 * GEM specific mm private for tracking GEM objects
676 struct drm_open_hash offset_hash; /**< User token hash table for maps */
677 struct unrhdr *idxunr;
680 struct drm_gem_object {
681 /** Reference count of this object */
682 struct kref refcount;
684 /** Handle count of this object. Each handle also holds a reference */
685 atomic_t handle_count; /* number of handles on this object */
687 /** Related drm device */
688 struct drm_device *dev;
690 /** File representing the shmem storage: filp in Linux parlance */
694 struct drm_hash_item map_list;
697 * Size of the object, in bytes. Immutable over the object's
703 * Global name for this object, starts at 1. 0 means unnamed.
704 * Access is covered by the object_name_lock in the related drm_device
709 * Memory domains. These monitor which caches contain read/write data
710 * related to the object. When transitioning from one set of domains
711 * to another, the driver is called to ensure that caches are suitably
712 * flushed and invalidated
714 uint32_t read_domains;
715 uint32_t write_domain;
718 * While validating an exec operation, the
719 * new read/write domain values are computed here.
720 * They will be transferred to the above values
721 * at the point that any cache flushing occurs
723 uint32_t pending_read_domains;
724 uint32_t pending_write_domain;
726 void *driver_private;
729 /* dma buf exported from this GEM object */
730 struct dma_buf *export_dma_buf;
732 /* dma buf attachment backing this object */
733 struct dma_buf_attachment *import_attach;
734 #endif /* DUMBBELL_WIP */
737 #include "drm_crtc.h"
739 /* per-master structure */
742 struct kref refcount; /* refcount for this master */
744 struct list_head head; /**< each minor contains a list of masters */
745 struct drm_minor *minor; /**< link back to minor we are a master for */
747 char *unique; /**< Unique identifier: e.g., busid */
748 int unique_len; /**< Length of unique field */
749 int unique_size; /**< amount allocated */
751 int blocked; /**< Blocked due to VC switch? */
753 /** \name Authentication */
755 struct drm_open_hash magiclist;
756 struct list_head magicfree;
759 struct drm_lock_data lock; /**< Information on hardware lock */
761 void *driver_priv; /**< Private structure for driver to use */
764 /* Size of ringbuffer for vblank timestamps. Just double-buffer
765 * in initial implementation.
767 #define DRM_VBLANKTIME_RBSIZE 2
769 /* Flags and return codes for get_vblank_timestamp() driver function. */
770 #define DRM_CALLED_FROM_VBLIRQ 1
771 #define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0)
772 #define DRM_VBLANKTIME_INVBL (1 << 1)
774 /* get_scanout_position() return flags */
775 #define DRM_SCANOUTPOS_VALID (1 << 0)
776 #define DRM_SCANOUTPOS_INVBL (1 << 1)
777 #define DRM_SCANOUTPOS_ACCURATE (1 << 2)
780 #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1)
783 #define upper_32_bits(n) ((u32)(((n) >> 16) >> 16))
786 int (*load)(struct drm_device *, unsigned long flags);
787 int (*use_msi)(struct drm_device *, unsigned long flags);
788 int (*firstopen)(struct drm_device *);
789 int (*open)(struct drm_device *, struct drm_file *);
790 void (*preclose)(struct drm_device *, struct drm_file *file_priv);
791 void (*postclose)(struct drm_device *, struct drm_file *);
792 void (*lastclose)(struct drm_device *);
793 int (*unload)(struct drm_device *);
794 void (*reclaim_buffers_locked)(struct drm_device *,
795 struct drm_file *file_priv);
796 int (*dma_ioctl)(struct drm_device *dev, void *data,
797 struct drm_file *file_priv);
798 void (*dma_ready)(struct drm_device *);
799 int (*dma_quiescent)(struct drm_device *);
800 int (*dma_flush_block_and_flush)(struct drm_device *, int context,
801 enum drm_lock_flags flags);
802 int (*dma_flush_unblock)(struct drm_device *, int context,
803 enum drm_lock_flags flags);
804 int (*context_ctor)(struct drm_device *dev, int context);
805 int (*context_dtor)(struct drm_device *dev, int context);
806 int (*kernel_context_switch)(struct drm_device *dev, int old,
808 int (*kernel_context_switch_unlock)(struct drm_device *dev);
809 void (*irq_preinstall)(struct drm_device *dev);
810 int (*irq_postinstall)(struct drm_device *dev);
811 void (*irq_uninstall)(struct drm_device *dev);
812 void (*irq_handler)(DRM_IRQ_ARGS);
814 u32 (*get_vblank_counter)(struct drm_device *dev, int crtc);
815 int (*enable_vblank)(struct drm_device *dev, int crtc);
816 void (*disable_vblank)(struct drm_device *dev, int crtc);
817 int (*get_scanout_position)(struct drm_device *dev, int crtc,
818 int *vpos, int *hpos);
820 int (*get_vblank_timestamp)(struct drm_device *dev, int crtc,
821 int *max_error, struct timeval *vblank_time,
824 int (*gem_init_object)(struct drm_gem_object *obj);
825 void (*gem_free_object)(struct drm_gem_object *obj);
826 int (*gem_open_object)(struct drm_gem_object *, struct drm_file *);
827 void (*gem_close_object)(struct drm_gem_object *, struct drm_file *);
829 struct cdev_pager_ops *gem_pager_ops;
831 int (*dumb_create)(struct drm_file *file_priv,
832 struct drm_device *dev, struct drm_mode_create_dumb *args);
833 int (*dumb_map_offset)(struct drm_file *file_priv,
834 struct drm_device *dev, uint32_t handle, uint64_t *offset);
835 int (*dumb_destroy)(struct drm_file *file_priv,
836 struct drm_device *dev, uint32_t handle);
838 int (*sysctl_init)(struct drm_device *dev,
839 struct sysctl_ctx_list *ctx, struct sysctl_oid *top);
840 void (*sysctl_cleanup)(struct drm_device *dev);
842 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */
845 * Called by \c drm_device_is_agp. Typically used to determine if a
846 * card is really attached to AGP or not.
848 * \param dev DRM device handle
851 * One of three values is returned depending on whether or not the
852 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
853 * (return of 1), or may or may not be AGP (return of 2).
855 int (*device_is_agp) (struct drm_device * dev);
857 drm_ioctl_desc_t *ioctls;
858 #ifdef COMPAT_FREEBSD32
859 drm_ioctl_desc_t *compat_ioctls;
860 int *compat_ioctls_nr;
869 const char *name; /* Simple driver name */
870 const char *desc; /* Longer driver name */
871 const char *date; /* Date of last major changes. */
877 * DRM minor structure. This structure represents a drm minor number.
880 int index; /**< Minor device number */
881 int type; /**< Control or render */
882 device_t kdev; /**< OS device */
883 struct drm_device *dev;
885 struct drm_master *master; /* currently active master for this node */
886 struct list_head master_list;
887 struct drm_mode_group mode_group;
890 /* mode specified on the command line */
891 struct drm_cmdline_mode {
893 bool refresh_specified;
902 enum drm_connector_force force;
906 struct drm_pending_vblank_event {
907 struct drm_pending_event base;
909 struct drm_event_vblank event;
912 /* Length for the array of resource pointers for drm_get_resource_*. */
913 #define DRM_MAX_PCI_RESOURCE 6
916 * DRM device structure. This structure represent a complete card that
917 * may contain multiple heads.
920 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */
922 uint16_t pci_device; /* PCI device id */
923 uint16_t pci_vendor; /* PCI vendor id */
924 uint16_t pci_subdevice; /* PCI subsystem device id */
925 uint16_t pci_subvendor; /* PCI subsystem vendor id */
927 char *unique; /* Unique identifier: e.g., busid */
928 int unique_len; /* Length of unique field */
929 struct cdev *devnode; /* Device number for mknod */
930 int if_version; /* Highest interface version set */
932 int flags; /* Flags to open(2) */
935 struct spinlock dma_lock; /* protects dev->dma */
936 struct lwkt_serialize irq_lock; /* protects irq condition checks */
937 struct lock dev_lock; /* protects everything else */
938 struct lock dev_struct_lock;
941 int open_count; /* Outstanding files open */
942 int buf_use; /* Buffers in use -- cannot alloc */
944 /* Performance counters */
945 unsigned long counters;
946 enum drm_stat_type types[15];
950 drm_magic_head_t magiclist[DRM_HASH_SIZE];
952 struct list_head filelist;
954 /** \name Memory management */
956 struct list_head maplist; /**< Linked list of regions */
957 struct unrhdr *map_unrhdr;
959 drm_local_map_t **context_sareas;
962 struct drm_lock_data lock; /* Information on hardware lock */
964 /* DMA queues (contexts) */
965 drm_device_dma_t *dma; /* Optional pointer for DMA support */
967 /* Context support */
968 int irq; /* Interrupt used by board */
969 int msi_enabled; /* MSI enabled */
970 int irqrid; /* Interrupt used by board */
971 struct resource *irqr; /* Resource for interrupt used by board */
972 void *irqh; /* Handle from bus_setup_intr */
974 /* Storage of resource pointers for drm_get_resource_* */
975 struct resource *pcir[DRM_MAX_PCI_RESOURCE];
976 int pcirid[DRM_MAX_PCI_RESOURCE];
983 /** \name Context support */
985 int irq_enabled; /**< True if irq handler is enabled */
986 __volatile__ long context_flag; /**< Context swapping flag */
987 int last_context; /**< Last current context */
992 struct sigio *buf_sigio; /* Processes waiting for SIGIO */
995 struct drm_sysctl_info *sysctl;
1000 struct device *dev; /**< Device structure */
1002 drm_sg_mem_t *sg; /* Scatter gather memory */
1003 unsigned long *ctx_bitmap;
1009 * At load time, disabling the vblank interrupt won't be allowed since
1010 * old clients may not call the modeset ioctl and therefore misbehave.
1011 * Once the modeset ioctl *has* been called though, we can safely
1012 * disable them when unused.
1014 int vblank_disable_allowed;
1016 wait_queue_head_t *vbl_queue; /**< VBLANK wait queue */
1017 atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */
1018 struct timeval *_vblank_time; /**< timestamp of current vblank_count (drivers must alloc right number of fields) */
1019 struct lock vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */
1020 struct lock vbl_lock;
1021 atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */
1022 u32 *last_vblank; /* protected by dev->vbl_lock, used */
1023 /* for wraparound handling */
1024 int *vblank_enabled; /* so we don't call enable more than
1026 int *vblank_inmodeset; /* Display driver is setting mode */
1027 u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */
1028 struct timer_list vblank_disable_timer;
1030 u32 max_vblank_count; /**< size of vblank counter register */
1035 struct list_head vblank_event_list;
1036 struct lock event_lock;
1038 struct drm_driver *driver;
1039 struct drm_local_map *agp_buffer_map;
1040 unsigned int agp_buffer_token;
1041 struct drm_minor *control; /**< Control node for card */
1042 struct drm_minor *primary; /**< render type primary screen head */
1044 struct drm_mode_config mode_config; /**< Current mode config */
1046 /** \name GEM information */
1048 struct lock object_name_lock;
1049 struct idr object_name_idr;
1053 void *sysctl_private;
1054 char busid_str[128];
1057 int switch_power_state;
1060 #define DRM_SWITCH_POWER_ON 0
1061 #define DRM_SWITCH_POWER_OFF 1
1062 #define DRM_SWITCH_POWER_CHANGING 2
1064 static __inline__ int drm_core_check_feature(struct drm_device *dev,
1067 return ((dev->driver->driver_features & feature) ? 1 : 0);
1071 static inline int drm_core_has_AGP(struct drm_device *dev)
1073 return drm_core_check_feature(dev, DRIVER_USE_AGP);
1076 #define drm_core_has_AGP(dev) (0)
1086 DMI_PRODUCT_VERSION,
1093 DMI_BOARD_ASSET_TAG,
1096 DMI_CHASSIS_VERSION,
1098 DMI_CHASSIS_ASSET_TAG,
1102 struct dmi_strmatch {
1107 struct dmi_system_id {
1108 int (*callback)(const struct dmi_system_id *);
1110 struct dmi_strmatch matches[4];
1112 #define DMI_MATCH(a, b) {(a), (b)}
1113 bool dmi_check_system(const struct dmi_system_id *);
1115 extern int drm_notyet_flag;
1116 extern int drm_debug;
1118 extern unsigned int drm_vblank_offdelay;
1119 extern unsigned int drm_timestamp_precision;
1120 extern unsigned int drm_timestamp_monotonic;
1122 /* Device setup support (drm_drv.c) */
1123 int drm_probe(device_t kdev, drm_pci_id_list_t *idlist);
1124 int drm_attach(device_t kdev, drm_pci_id_list_t *idlist);
1125 int drm_create_cdevs(device_t kdev);
1126 int drm_detach(device_t kdev);
1127 d_ioctl_t drm_ioctl;
1129 d_close_t drm_close;
1131 d_kqfilter_t drm_kqfilter;
1133 d_mmap_single_t drm_mmap_single;
1134 extern drm_local_map_t *drm_getsarea(struct drm_device *dev);
1136 void drm_cdevpriv_dtor(void *cd);
1138 void drm_event_wakeup(struct drm_pending_event *e);
1140 int drm_add_busid_modesetting(struct drm_device *dev,
1141 struct sysctl_ctx_list *ctx, struct sysctl_oid *top);
1143 /* File operations helpers (drm_fops.c) */
1144 extern int drm_open_helper(struct cdev *kdev, int flags, int fmt,
1146 struct drm_device *dev,
1148 extern struct drm_file *drm_find_file_by_proc(struct drm_device *dev,
1152 extern int drm_gem_prime_handle_to_fd(struct drm_device *dev,
1153 struct drm_file *file_priv, uint32_t handle, uint32_t flags,
1155 extern int drm_gem_prime_fd_to_handle(struct drm_device *dev,
1156 struct drm_file *file_priv, int prime_fd, uint32_t *handle);
1158 extern int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data,
1159 struct drm_file *file_priv);
1160 extern int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data,
1161 struct drm_file *file_priv);
1168 extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, vm_page_t *pages,
1169 dma_addr_t *addrs, int max_pages);
1170 #endif /* DUMBBELL_WIP */
1171 extern struct sg_table *drm_prime_pages_to_sg(vm_page_t *pages, int nr_pages);
1172 extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg);
1175 void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv);
1176 void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv);
1177 int drm_prime_add_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t handle);
1178 int drm_prime_lookup_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t *handle);
1179 void drm_prime_remove_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf);
1181 int drm_prime_add_dma_buf(struct drm_device *dev, struct drm_gem_object *obj);
1182 int drm_prime_lookup_obj(struct drm_device *dev, struct dma_buf *buf,
1183 struct drm_gem_object **obj);
1184 #endif /* DUMBBELL_WIP */
1186 /* Memory management support (drm_memory.c) */
1187 void drm_mem_init(void);
1188 void drm_mem_uninit(void);
1189 void *drm_ioremap_wc(struct drm_device *dev, drm_local_map_t *map);
1190 void *drm_ioremap(struct drm_device *dev, drm_local_map_t *map);
1191 void drm_ioremapfree(drm_local_map_t *map);
1192 int drm_mtrr_add(unsigned long offset, size_t size, int flags);
1193 int drm_mtrr_del(int handle, unsigned long offset, size_t size, int flags);
1195 int drm_ctxbitmap_init(struct drm_device *dev);
1196 void drm_ctxbitmap_cleanup(struct drm_device *dev);
1197 void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
1198 int drm_ctxbitmap_next(struct drm_device *dev);
1200 /* Locking IOCTL support (drm_lock.c) */
1201 int drm_lock_take(struct drm_lock_data *lock_data,
1202 unsigned int context);
1203 int drm_lock_transfer(struct drm_lock_data *lock_data,
1204 unsigned int context);
1205 int drm_lock_free(struct drm_lock_data *lock_data,
1206 unsigned int context);
1209 * These are exported to drivers so that they can implement fencing using
1210 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
1213 unsigned long drm_get_resource_start(struct drm_device *dev,
1214 unsigned int resource);
1215 unsigned long drm_get_resource_len(struct drm_device *dev,
1216 unsigned int resource);
1217 void drm_rmmap(struct drm_device *dev, drm_local_map_t *map);
1218 int drm_order(unsigned long size);
1219 int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc *request);
1220 int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc *request);
1221 extern int drm_addmap(struct drm_device *dev, resource_size_t offset,
1222 unsigned int size, enum drm_map_type type,
1223 enum drm_map_flags flags, struct drm_local_map **map_ptr);
1225 /* DMA support (drm_dma.c) */
1226 int drm_dma_setup(struct drm_device *dev);
1227 void drm_dma_takedown(struct drm_device *dev);
1228 void drm_free_buffer(struct drm_device *dev, drm_buf_t *buf);
1229 void drm_reclaim_buffers(struct drm_device *dev, struct drm_file *file_priv);
1230 #define drm_core_reclaim_buffers drm_reclaim_buffers
1232 /* IRQ support (drm_irq.h) */
1233 int drm_irq_install(struct drm_device *dev);
1234 int drm_irq_uninstall(struct drm_device *dev);
1235 irqreturn_t drm_irq_handler(DRM_IRQ_ARGS);
1236 void drm_driver_irq_preinstall(struct drm_device *dev);
1237 void drm_driver_irq_postinstall(struct drm_device *dev);
1238 void drm_driver_irq_uninstall(struct drm_device *dev);
1240 void drm_vblank_pre_modeset(struct drm_device *dev, int crtc);
1241 void drm_vblank_post_modeset(struct drm_device *dev, int crtc);
1242 int drm_modeset_ctl(struct drm_device *dev, void *data,
1243 struct drm_file *file_priv);
1245 extern int drm_vblank_init(struct drm_device *dev, int num_crtcs);
1246 extern int drm_wait_vblank(struct drm_device *dev, void *data,
1247 struct drm_file *filp);
1248 extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq);
1249 extern u32 drm_vblank_count(struct drm_device *dev, int crtc);
1250 extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc,
1251 struct timeval *vblanktime);
1252 extern void drm_send_vblank_event(struct drm_device *dev, int crtc,
1253 struct drm_pending_vblank_event *e);
1254 extern bool drm_handle_vblank(struct drm_device *dev, int crtc);
1255 void drm_handle_vblank_events(struct drm_device *dev, int crtc);
1256 extern int drm_vblank_get(struct drm_device *dev, int crtc);
1257 extern void drm_vblank_put(struct drm_device *dev, int crtc);
1258 extern void drm_vblank_off(struct drm_device *dev, int crtc);
1259 extern void drm_vblank_cleanup(struct drm_device *dev);
1260 extern u32 drm_get_last_vbltimestamp(struct drm_device *dev, int crtc,
1261 struct timeval *tvblank, unsigned flags);
1262 extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev,
1263 int crtc, int *max_error,
1264 struct timeval *vblank_time,
1266 struct drm_crtc *refcrtc);
1267 extern void drm_calc_timestamping_constants(struct drm_crtc *crtc);
1269 struct timeval ns_to_timeval(const int64_t nsec);
1270 int64_t timeval_to_ns(const struct timeval *tv);
1272 /* AGP/PCI Express/GART support (drm_agpsupport.c) */
1273 int drm_device_is_agp(struct drm_device *dev);
1274 int drm_device_is_pcie(struct drm_device *dev);
1275 drm_agp_head_t *drm_agp_init(void);
1276 int drm_agp_acquire(struct drm_device *dev);
1277 int drm_agp_release(struct drm_device *dev);
1278 int drm_agp_info(struct drm_device * dev, struct drm_agp_info *info);
1279 int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode);
1280 void *drm_agp_allocate_memory(size_t pages, u32 type);
1281 int drm_agp_free_memory(void *handle);
1282 int drm_agp_bind_memory(void *handle, off_t start);
1283 int drm_agp_unbind_memory(void *handle);
1284 int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request);
1285 int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request);
1286 int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
1287 int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request);
1289 /* Scatter Gather Support (drm_scatter.c) */
1290 void drm_sg_cleanup(drm_sg_mem_t *entry);
1291 int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request);
1293 /* sysctl support (drm_sysctl.h) */
1294 extern int drm_sysctl_init(struct drm_device *dev);
1295 extern int drm_sysctl_cleanup(struct drm_device *dev);
1297 /* ATI PCIGART support (ati_pcigart.c) */
1298 int drm_ati_pcigart_init(struct drm_device *dev,
1299 struct drm_ati_pcigart_info *gart_info);
1300 int drm_ati_pcigart_cleanup(struct drm_device *dev,
1301 struct drm_ati_pcigart_info *gart_info);
1303 /* Cache management (drm_memory.c) */
1304 void drm_clflush_pages(vm_page_t *pages, unsigned long num_pages);
1306 /* Locking IOCTL support (drm_drv.c) */
1307 int drm_lock(struct drm_device *dev, void *data,
1308 struct drm_file *file_priv);
1309 int drm_unlock(struct drm_device *dev, void *data,
1310 struct drm_file *file_priv);
1311 int drm_version(struct drm_device *dev, void *data,
1312 struct drm_file *file_priv);
1313 int drm_setversion(struct drm_device *dev, void *data,
1314 struct drm_file *file_priv);
1316 /* Misc. IOCTL support (drm_ioctl.c) */
1317 int drm_irq_by_busid(struct drm_device *dev, void *data,
1318 struct drm_file *file_priv);
1319 int drm_getunique(struct drm_device *dev, void *data,
1320 struct drm_file *file_priv);
1321 int drm_setunique(struct drm_device *dev, void *data,
1322 struct drm_file *file_priv);
1323 int drm_getmap(struct drm_device *dev, void *data,
1324 struct drm_file *file_priv);
1325 int drm_getclient(struct drm_device *dev, void *data,
1326 struct drm_file *file_priv);
1327 int drm_getstats(struct drm_device *dev, void *data,
1328 struct drm_file *file_priv);
1329 int drm_getcap(struct drm_device *dev, void *data,
1330 struct drm_file *file_priv);
1331 int drm_noop(struct drm_device *dev, void *data,
1332 struct drm_file *file_priv);
1334 /* Context IOCTL support (drm_context.c) */
1335 int drm_resctx(struct drm_device *dev, void *data,
1336 struct drm_file *file_priv);
1337 int drm_addctx(struct drm_device *dev, void *data,
1338 struct drm_file *file_priv);
1339 int drm_modctx(struct drm_device *dev, void *data,
1340 struct drm_file *file_priv);
1341 int drm_getctx(struct drm_device *dev, void *data,
1342 struct drm_file *file_priv);
1343 int drm_switchctx(struct drm_device *dev, void *data,
1344 struct drm_file *file_priv);
1345 int drm_newctx(struct drm_device *dev, void *data,
1346 struct drm_file *file_priv);
1347 int drm_rmctx(struct drm_device *dev, void *data,
1348 struct drm_file *file_priv);
1349 int drm_setsareactx(struct drm_device *dev, void *data,
1350 struct drm_file *file_priv);
1351 int drm_getsareactx(struct drm_device *dev, void *data,
1352 struct drm_file *file_priv);
1354 /* Authentication IOCTL support (drm_auth.c) */
1355 int drm_getmagic(struct drm_device *dev, void *data,
1356 struct drm_file *file_priv);
1357 int drm_authmagic(struct drm_device *dev, void *data,
1358 struct drm_file *file_priv);
1360 /* Buffer management support (drm_bufs.c) */
1361 int drm_addmap_ioctl(struct drm_device *dev, void *data,
1362 struct drm_file *file_priv);
1363 int drm_rmmap_ioctl(struct drm_device *dev, void *data,
1364 struct drm_file *file_priv);
1365 int drm_addbufs(struct drm_device *dev, void *data,
1366 struct drm_file *file_priv);
1367 int drm_infobufs(struct drm_device *dev, void *data,
1368 struct drm_file *file_priv);
1369 int drm_markbufs(struct drm_device *dev, void *data,
1370 struct drm_file *file_priv);
1371 int drm_freebufs(struct drm_device *dev, void *data,
1372 struct drm_file *file_priv);
1373 int drm_mapbufs(struct drm_device *dev, void *data,
1374 struct drm_file *file_priv);
1376 /* DMA support (drm_dma.c) */
1377 int drm_dma(struct drm_device *dev, void *data, struct drm_file *file_priv);
1379 /* IRQ support (drm_irq.c) */
1380 int drm_control(struct drm_device *dev, void *data,
1381 struct drm_file *file_priv);
1383 /* AGP/GART support (drm_agpsupport.c) */
1384 int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
1385 struct drm_file *file_priv);
1386 int drm_agp_release_ioctl(struct drm_device *dev, void *data,
1387 struct drm_file *file_priv);
1388 int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
1389 struct drm_file *file_priv);
1390 int drm_agp_info_ioctl(struct drm_device *dev, void *data,
1391 struct drm_file *file_priv);
1392 int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
1393 struct drm_file *file_priv);
1394 int drm_agp_free_ioctl(struct drm_device *dev, void *data,
1395 struct drm_file *file_priv);
1396 int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
1397 struct drm_file *file_priv);
1398 int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
1399 struct drm_file *file_priv);
1401 /* Stub support (drm_stub.h) */
1402 extern int drm_setmaster_ioctl(struct drm_device *dev, void *data,
1403 struct drm_file *file_priv);
1404 extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
1405 struct drm_file *file_priv);
1407 /* Scatter Gather Support (drm_scatter.c) */
1408 int drm_sg_alloc_ioctl(struct drm_device *dev, void *data,
1409 struct drm_file *file_priv);
1410 int drm_sg_free(struct drm_device *dev, void *data,
1411 struct drm_file *file_priv);
1413 /* consistent PCI memory functions (drm_pci.c) */
1414 drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
1415 size_t align, dma_addr_t maxaddr);
1416 void drm_pci_free(struct drm_device *dev, drm_dma_handle_t *dmah);
1418 /* sysfs support (drm_sysfs.c) */
1419 extern char *drm_get_connector_status_name(enum drm_connector_status status);
1421 /* Graphics Execution Manager library functions (drm_gem.c) */
1422 int drm_gem_init(struct drm_device *dev);
1423 void drm_gem_destroy(struct drm_device *dev);
1424 void drm_gem_object_release(struct drm_gem_object *obj);
1425 void drm_gem_object_free(struct kref *kref);
1427 int drm_gem_close_ioctl(struct drm_device *dev, void *data,
1428 struct drm_file *file_priv);
1429 int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
1430 struct drm_file *file_priv);
1431 int drm_gem_open_ioctl(struct drm_device *dev, void *data,
1432 struct drm_file *file_priv);
1433 void drm_gem_object_handle_free(struct drm_gem_object *obj);
1435 #include <drm/drm_global.h>
1438 drm_gem_object_reference(struct drm_gem_object *obj)
1440 kref_get(&obj->refcount);
1444 drm_gem_object_unreference(struct drm_gem_object *obj)
1447 kref_put(&obj->refcount, drm_gem_object_free);
1451 drm_gem_object_unreference_unlocked(struct drm_gem_object *obj)
1454 struct drm_device *dev = obj->dev;
1456 kref_put(&obj->refcount, drm_gem_object_free);
1461 int drm_gem_handle_create(struct drm_file *file_priv,
1462 struct drm_gem_object *obj,
1464 int drm_gem_handle_delete(struct drm_file *filp, u32 handle);
1467 drm_gem_object_handle_reference(struct drm_gem_object *obj)
1469 drm_gem_object_reference(obj);
1470 atomic_inc(&obj->handle_count);
1474 drm_gem_object_handle_unreference(struct drm_gem_object *obj)
1479 if (atomic_read(&obj->handle_count) == 0)
1482 * Must bump handle count first as this may be the last
1483 * ref, in which case the object would disappear before we
1484 * checked for a name
1486 if (atomic_dec_and_test(&obj->handle_count))
1487 drm_gem_object_handle_free(obj);
1488 drm_gem_object_unreference(obj);
1492 drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj)
1497 if (atomic_read(&obj->handle_count) == 0)
1501 * Must bump handle count first as this may be the last
1502 * ref, in which case the object would disappear before we
1503 * checked for a name
1506 if (atomic_dec_and_test(&obj->handle_count))
1507 drm_gem_object_handle_free(obj);
1508 drm_gem_object_unreference_unlocked(obj);
1511 int drm_gem_object_init(struct drm_device *dev, struct drm_gem_object *obj,
1513 int drm_gem_private_object_init(struct drm_device *dev,
1514 struct drm_gem_object *obj, size_t size);
1515 struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev,
1517 struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev,
1518 struct drm_file *file_priv, uint32_t handle);
1520 void drm_gem_open(struct drm_device *dev, struct drm_file *file_priv);
1521 void drm_gem_release(struct drm_device *dev, struct drm_file *file_priv);
1523 int drm_gem_create_mmap_offset(struct drm_gem_object *obj);
1524 void drm_gem_free_mmap_offset(struct drm_gem_object *obj);
1525 int drm_gem_mmap_single(struct drm_device *dev, vm_ooffset_t *offset,
1526 vm_size_t size, struct vm_object **obj_res, int nprot);
1527 void drm_gem_pager_dtr(void *obj);
1529 struct ttm_bo_device;
1530 int ttm_bo_mmap_single(struct ttm_bo_device *bdev, vm_ooffset_t *offset,
1531 vm_size_t size, struct vm_object **obj_res, int nprot);
1532 struct ttm_buffer_object;
1533 void ttm_bo_release_mmap(struct ttm_buffer_object *bo);
1535 void drm_device_lock_mtx(struct drm_device *dev);
1536 void drm_device_unlock_mtx(struct drm_device *dev);
1537 int drm_device_sleep_mtx(struct drm_device *dev, void *chan, int flags,
1538 const char *msg, int timeout);
1539 void drm_device_assert_mtx_locked(struct drm_device *dev);
1540 void drm_device_assert_mtx_unlocked(struct drm_device *dev);
1542 void drm_device_lock_struct(struct drm_device *dev);
1543 void drm_device_unlock_struct(struct drm_device *dev);
1544 int drm_device_sleep_struct(struct drm_device *dev, void *chan, int flags,
1545 const char *msg, int timeout);
1546 void drm_device_assert_struct_locked(struct drm_device *dev);
1547 void drm_device_assert_struct_unlocked(struct drm_device *dev);
1549 void drm_compat_locking_init(struct drm_device *dev);
1550 void drm_sleep_locking_init(struct drm_device *dev);
1553 bool drm_mode_parse_command_line_for_connector(const char *mode_option,
1554 struct drm_connector *connector, struct drm_cmdline_mode *mode);
1555 struct drm_display_mode *drm_mode_create_from_cmdline_mode(
1556 struct drm_device *dev, struct drm_cmdline_mode *cmd);
1558 /* Inline replacements for drm_alloc and friends */
1559 static __inline__ void *
1560 drm_alloc(size_t size, struct malloc_type *area)
1562 return kmalloc(size, area, M_NOWAIT);
1565 static __inline__ void *
1566 drm_calloc(size_t nmemb, size_t size, struct malloc_type *area)
1568 return kmalloc(size * nmemb, area, M_NOWAIT | M_ZERO);
1571 static __inline__ void *
1572 drm_realloc(void *oldpt, size_t oldsize, size_t size,
1573 struct malloc_type *area)
1576 res = krealloc(oldpt, size, area, M_NOWAIT);
1577 if (res == NULL && oldpt != NULL)
1582 static __inline__ void
1583 drm_free(void *pt, struct malloc_type *area)
1589 /* Inline replacements for DRM_IOREMAP macros */
1590 static __inline__ void
1591 drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev)
1593 map->virtual = drm_ioremap_wc(dev, map);
1595 static __inline__ void
1596 drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev)
1598 map->virtual = drm_ioremap(dev, map);
1600 static __inline__ void
1601 drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev)
1603 if ( map->virtual && map->size )
1604 drm_ioremapfree(map);
1607 static __inline__ struct drm_local_map *
1608 drm_core_findmap(struct drm_device *dev, unsigned long offset)
1610 struct drm_map_list *_entry;
1612 list_for_each_entry(_entry, &dev->maplist, head) {
1613 if (offset == (unsigned long)_entry->map->handle)
1619 static __inline__ void drm_core_dropmap(struct drm_map *map)
1623 /* FreeBSD compatibility macros */
1624 #define PROC_LOCK(p)
1625 #define PROC_UNLOCK(p)
1627 #define VM_OBJECT_RLOCK(object) VM_OBJECT_LOCK(object)
1628 #define VM_OBJECT_RUNLOCK(object) VM_OBJECT_UNLOCK(object)
1629 #define VM_OBJECT_WLOCK(object) VM_OBJECT_LOCK(object)
1630 #define VM_OBJECT_WUNLOCK(object) VM_OBJECT_UNLOCK(object)
1632 #define CTR2(one,two,three,four)
1634 #define DRM_PCIE_SPEED_25 1
1635 #define DRM_PCIE_SPEED_50 2
1636 #define DRM_PCIE_SPEED_80 4
1638 extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask);
1640 #define drm_can_sleep() (DRM_HZ & 1)
1642 #endif /* __KERNEL__ */
1643 #endif /* _DRM_P_H_ */