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/pci.h>
99 #include <linux/jiffies.h>
100 #include <linux/kernel.h>
101 #include <linux/kref.h>
102 #include <linux/list.h>
103 #include <linux/timer.h>
104 #include <linux/types.h>
105 #include <linux/wait.h>
107 #include <asm/uaccess.h>
112 #include "drm_os_freebsd.h"
113 #include "drm_hashtab.h"
116 #define DRM_UT_CORE 0x01
117 #define DRM_UT_DRIVER 0x02
118 #define DRM_UT_KMS 0x04
119 #define DRM_UT_PRIME 0x08
124 #define DRM_DEBUG_DEFAULT_ON 1
125 #endif /* DRM_DEBUG */
127 #define DRM_DEBUGBITS_DEBUG 0x1
128 #define DRM_DEBUGBITS_KMS 0x2
129 #define DRM_DEBUGBITS_FAILED_IOCTL 0x4
134 /***********************************************************************/
135 /** \name DRM template customization defaults */
138 /* driver capabilities and requirements mask */
139 #define DRIVER_USE_AGP 0x1
140 #define DRIVER_REQUIRE_AGP 0x2
141 #define DRIVER_USE_MTRR 0x4
142 #define DRIVER_PCI_DMA 0x8
143 #define DRIVER_SG 0x10
144 #define DRIVER_HAVE_DMA 0x20
145 #define DRIVER_HAVE_IRQ 0x40
146 #define DRIVER_IRQ_SHARED 0x80
147 #define DRIVER_IRQ_VBL 0x100
148 #define DRIVER_DMA_QUEUE 0x200
149 #define DRIVER_FB_DMA 0x400
150 #define DRIVER_IRQ_VBL2 0x800
151 #define DRIVER_GEM 0x1000
152 #define DRIVER_MODESET 0x2000
153 #define DRIVER_PRIME 0x4000
154 #define DRIVER_LOCKLESS_IRQ 0x8000
156 /***********************************************************************/
157 /** \name Begin the DRM... */
160 #define DRM_HASH_SIZE 16 /* Size of key hash table */
161 #define DRM_KERNEL_CONTEXT 0 /* Change drm_resctx if changed */
162 #define DRM_RESERVED_CONTEXTS 1 /* Change drm_resctx if changed */
164 #define DRM_GEM_MAPPING_MASK (3ULL << 62)
165 #define DRM_GEM_MAPPING_KEY (2ULL << 62) /* Non-canonical address form */
166 #define DRM_GEM_MAX_IDX 0x3fffff
167 #define DRM_GEM_MAPPING_IDX(o) (((o) >> 40) & DRM_GEM_MAX_IDX)
168 #define DRM_GEM_MAPPING_OFF(i) (((uint64_t)(i)) << 40)
169 #define DRM_GEM_MAPPING_MAPOFF(o) \
170 ((o) & ~(DRM_GEM_MAPPING_OFF(DRM_GEM_MAX_IDX) | DRM_GEM_MAPPING_KEY))
172 MALLOC_DECLARE(M_DRM);
174 SYSCTL_DECL(_hw_drm);
176 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
178 /***********************************************************************/
179 /** \name Internal types and structures */
182 #define DRM_ARRAY_SIZE(x) NELEM(x)
183 #define DRM_MIN(a,b) ((a)<(b)?(a):(b))
184 #define DRM_MAX(a,b) ((a)>(b)?(a):(b))
186 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
188 #define __OS_HAS_AGP 1
190 #define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP)
191 #define DRM_DEV_UID 0
192 #define DRM_DEV_GID 0
194 #define DRM_WAKEUP(w) wakeup((void *)w)
195 #define DRM_WAKEUP_INT(w) wakeup(w)
196 #define DRM_INIT_WAITQUEUE(queue) do {(void)(queue);} while (0)
198 #define DRM_CURPROC curthread
199 #define DRM_STRUCTPROC struct thread
200 #define DRM_CURRENTPID (curproc != NULL ? curproc->p_pid : -1)
201 #define DRM_LOCK(dev) lockmgr(&(dev)->dev_struct_lock, LK_EXCLUSIVE)
202 #define DRM_UNLOCK(dev) lockmgr(&(dev)->dev_struct_lock, LK_RELEASE)
203 #define DRM_LOCK_SLEEP(dev, chan, flags, msg, timeout) \
204 (lksleep((chan), &(dev)->dev_struct_lock, (flags), (msg), (timeout)))
205 #if defined(INVARIANTS)
206 #define DRM_LOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->dev_struct_lock, curthread) != 0);
207 #define DRM_UNLOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->dev_struct_lock, curthread) == 0);
209 #define DRM_LOCK_ASSERT(d)
210 #define DRM_UNLOCK_ASSERT(d)
213 #define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS)
215 #define DRM_IRQ_ARGS void *arg
216 typedef void irqreturn_t;
217 #define IRQ_HANDLED /* nothing */
218 #define IRQ_NONE /* nothing */
225 #define DRM_AGP_MEM struct agp_memory_info
227 #define drm_get_device_from_kdev(_kdev) (_kdev->si_drv1)
229 #define PAGE_ALIGN(addr) round_page(addr)
230 /* DRM_SUSER returns true if the user is superuser */
231 #define DRM_SUSER(p) (priv_check(p, PRIV_DRIVER) == 0)
232 #define DRM_AGP_FIND_DEVICE() agp_find_device()
233 #define DRM_MTRR_WC MDF_WRITECOMBINE
235 /* DRM_READMEMORYBARRIER() prevents reordering of reads.
236 * DRM_WRITEMEMORYBARRIER() prevents reordering of writes.
237 * DRM_MEMORYBARRIER() prevents reordering of reads and writes.
239 #define DRM_READMEMORYBARRIER() cpu_lfence()
240 #define DRM_WRITEMEMORYBARRIER() cpu_sfence()
241 #define DRM_MEMORYBARRIER() cpu_mfence()
243 #define DRM_READ8(map, offset) \
244 *(volatile u_int8_t *)(((vm_offset_t)(map)->virtual) + \
245 (vm_offset_t)(offset))
246 #define DRM_READ16(map, offset) \
247 le16toh(*(volatile u_int16_t *)(((vm_offset_t)(map)->virtual) + \
248 (vm_offset_t)(offset)))
249 #define DRM_READ32(map, offset) \
250 le32toh(*(volatile u_int32_t *)(((vm_offset_t)(map)->virtual) + \
251 (vm_offset_t)(offset)))
252 #define DRM_READ64(map, offset) \
253 le64toh(*(volatile u_int64_t *)(((vm_offset_t)(map)->virtual) + \
254 (vm_offset_t)(offset)))
255 #define DRM_WRITE8(map, offset, val) \
256 *(volatile u_int8_t *)(((vm_offset_t)(map)->virtual) + \
257 (vm_offset_t)(offset)) = val
258 #define DRM_WRITE16(map, offset, val) \
259 *(volatile u_int16_t *)(((vm_offset_t)(map)->virtual) + \
260 (vm_offset_t)(offset)) = htole16(val)
261 #define DRM_WRITE32(map, offset, val) \
262 *(volatile u_int32_t *)(((vm_offset_t)(map)->virtual) + \
263 (vm_offset_t)(offset)) = htole32(val)
264 #define DRM_WRITE64(map, offset, val) \
265 *(volatile u_int64_t *)(((vm_offset_t)(map)->virtual) + \
266 (vm_offset_t)(offset)) = htole64(val)
268 #define DRM_VERIFYAREA_READ( uaddr, size ) \
269 (!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ))
271 #define DRM_COPY_TO_USER(user, kern, size) \
272 copyout(kern, user, size)
273 #define DRM_COPY_FROM_USER(kern, user, size) \
274 copyin(user, kern, size)
275 #define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \
276 copyin(arg2, arg1, arg3)
277 #define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \
278 copyout(arg2, arg1, arg3)
279 #define DRM_GET_USER_UNCHECKED(val, uaddr) \
280 ((val) = fuword32(uaddr), 0)
282 #define drm_can_sleep() (DRM_HZ & 1)
284 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
285 (_map) = (_dev)->context_sareas[_ctx]; \
288 #define LOCK_TEST_WITH_RETURN(dev, file_priv) \
290 if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) || \
291 dev->lock.file_priv != file_priv) { \
292 DRM_ERROR("%s called without lock held\n", \
298 /* Returns -errno to shared code */
299 #define DRM_WAIT_ON( ret, queue, timeout, condition ) \
300 for ( ret = 0 ; !ret && !(condition) ; ) { \
302 lwkt_serialize_enter(&dev->irq_lock); \
303 if (!(condition)) { \
304 tsleep_interlock(&(queue), PCATCH); \
305 lwkt_serialize_exit(&dev->irq_lock); \
306 ret = -tsleep(&(queue), PCATCH | PINTERLOCKED, \
307 "drmwtq", (timeout)); \
309 lwkt_serialize_exit(&dev->irq_lock); \
315 vm_page_unhold_pages(vm_page_t *ma, int count)
319 for (i = 0; i < count; i++)
320 vm_page_unhold(ma[i]);
323 int vm_phys_fictitious_reg_range(vm_paddr_t start, vm_paddr_t end,
324 vm_memattr_t memattr);
325 void vm_phys_fictitious_unreg_range(vm_paddr_t start, vm_paddr_t end);
326 vm_page_t vm_phys_fictitious_to_vm_page(vm_paddr_t pa);
328 #define DRM_ERROR(fmt, ...) \
329 kprintf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \
330 DRM_CURRENTPID, __func__ , ##__VA_ARGS__)
332 #define DRM_INFO(fmt, ...) kprintf("info: [" DRM_NAME "] " fmt , ##__VA_ARGS__)
334 #define DRM_DEBUG(fmt, ...) do { \
335 if ((drm_debug & DRM_DEBUGBITS_DEBUG) != 0) \
336 kprintf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \
337 __func__ , ##__VA_ARGS__); \
340 #define DRM_DEBUG_KMS(fmt, ...) do { \
341 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \
342 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\
343 __func__ , ##__VA_ARGS__); \
346 #define DRM_DEBUG_DRIVER(fmt, ...) do { \
347 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \
348 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\
349 __func__ , ##__VA_ARGS__); \
352 #define dev_err(dev, fmt, ...) \
353 device_printf((dev), "error: " fmt, ## __VA_ARGS__)
354 #define dev_warn(dev, fmt, ...) \
355 device_printf((dev), "warning: " fmt, ## __VA_ARGS__)
356 #define dev_info(dev, fmt, ...) \
357 device_printf((dev), "info: " fmt, ## __VA_ARGS__)
358 #define dev_dbg(dev, fmt, ...) do { \
359 if ((drm_debug& DRM_DEBUGBITS_KMS) != 0) { \
360 device_printf((dev), "debug: " fmt, ## __VA_ARGS__); \
364 typedef struct drm_pci_id_list
372 struct drm_msi_blacklist_entry
378 #define DRM_IOCTL_NR(n) ((n) & 0xff)
381 #define DRM_MASTER 0x2
382 #define DRM_ROOT_ONLY 0x4
383 #define DRM_CONTROL_ALLOW 0x8
384 #define DRM_UNLOCKED 0x10
386 typedef struct drm_ioctl_desc {
388 int (*func)(struct drm_device *dev, void *data,
389 struct drm_file *file_priv);
391 unsigned int cmd_drv;
395 * Creates a driver or general drm_ioctl_desc array entry for the given
396 * ioctl, for use by drm_ioctl().
398 #define DRM_IOCTL_DEF(ioctl, func, flags) \
399 [DRM_IOCTL_NR(ioctl)] = {ioctl, func, flags}
401 #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \
402 [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl}
404 typedef struct drm_magic_entry {
406 struct drm_file *priv;
407 struct drm_magic_entry *next;
410 typedef struct drm_magic_head {
411 struct drm_magic_entry *head;
412 struct drm_magic_entry *tail;
415 typedef struct drm_buf {
416 int idx; /**< Index into master buflist */
417 int total; /**< Buffer size */
418 int order; /**< log-base-2(total) */
419 int used; /**< Amount of buffer in use (for DMA) */
420 unsigned long offset; /**< Byte offset (used internally) */
421 void *address; /**< Address of buffer */
422 unsigned long bus_address; /**< Bus address of buffer */
423 struct drm_buf *next; /**< Kernel-only: used for free list */
424 __volatile__ int waiting; /**< On kernel DMA queue */
425 __volatile__ int pending; /**< On hardware DMA queue */
426 struct drm_file *file_priv; /**< Private of holding file descr */
427 int context; /**< Kernel queue for this buffer */
428 int while_locked; /**< Dispatch this buffer while locked */
436 } list; /**< Which list we're on */
438 int dev_priv_size; /**< Size of buffer private storage */
439 void *dev_private; /**< Per-buffer private storage */
442 struct drm_freelist {
443 int initialized; /* Freelist in use */
444 atomic_t count; /* Number of free buffers */
445 drm_buf_t *next; /* End pointer */
447 wait_queue_head_t waiting; /**< Processes waiting on free bufs */
448 int low_mark; /* Low water mark */
449 int high_mark; /* High water mark */
452 typedef struct drm_dma_handle {
459 typedef struct drm_buf_entry {
464 drm_dma_handle_t **seglist;
467 struct drm_freelist freelist;
470 /* Event queued up for userspace to read */
471 struct drm_pending_event {
472 struct drm_event *event;
473 struct list_head link;
474 struct drm_file *file_priv;
475 pid_t pid; /* pid of requester, no guarantee it's valid by the time
476 we deliver the event, for tracing only */
477 void (*destroy)(struct drm_pending_event *event);
480 /* initial implementaton using a linked list - todo hashtab */
481 struct drm_prime_file_private {
482 struct list_head head;
485 #endif /* DUMBBELL_WIP */
488 /** File private data */
491 struct drm_device *dev;
496 unsigned long ioctl_count;
497 struct list_head lhead;
499 /** Mapping of mm object handles to object pointers. */
500 struct idr object_idr;
501 /** Lock for synchronization of access to object_idr. */
502 struct lock table_lock;
507 struct drm_master *masterp;
509 struct list_head fbs;
511 wait_queue_head_t event_wait;
512 struct list_head event_list;
515 struct drm_prime_file_private prime;
521 struct drm_lock_data {
522 struct drm_hw_lock *hw_lock; /**< Hardware lock */
523 /** Private of lock holder's file (NULL=kernel) */
524 struct drm_file *file_priv;
525 wait_queue_head_t lock_queue; /**< Queue of blocked processes */
526 unsigned long lock_time; /**< Time of last lock in jiffies */
529 /* This structure, in the struct drm_device, is always initialized while the
531 * is open. dev->dma_lock protects the incrementing of dev->buf_use, which
532 * when set marks that no further bufs may be allocated until device teardown
533 * occurs (when the last open of the device has closed). The high/low
534 * watermarks of bufs are only touched by the X Server, and thus not
535 * concurrently accessed, so no locking is needed.
537 typedef struct drm_device_dma {
539 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */
540 int buf_count; /**< total number of buffers */
541 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */
543 int page_count; /**< number of pages */
544 unsigned long *pagelist; /**< page list */
545 unsigned long byte_count;
547 _DRM_DMA_USE_AGP = 0x01,
548 _DRM_DMA_USE_SG = 0x02,
549 _DRM_DMA_USE_FB = 0x04,
550 _DRM_DMA_USE_PCI_RO = 0x08
555 typedef struct drm_agp_mem {
557 unsigned long bound; /* address */
559 struct drm_agp_mem *prev;
560 struct drm_agp_mem *next;
563 typedef struct drm_agp_head {
565 struct agp_info agp_info;
567 drm_agp_mem_t *memory;
573 int cant_use_aperture;
574 unsigned long page_mask;
577 typedef struct drm_sg_mem {
583 #define DRM_MAP_HANDLE_BITS (sizeof(void *) == 4 ? 4 : 24)
584 #define DRM_MAP_HANDLE_SHIFT (sizeof(void *) * 8 - DRM_MAP_HANDLE_BITS)
587 * Kernel side of a mapping
589 struct drm_local_map {
590 unsigned long offset; /* Physical address (0 for SAREA) */
591 unsigned long size; /* Physical size (bytes) */
592 enum drm_map_type type; /* Type of memory mapped */
593 enum drm_map_flags flags; /* Flags */
594 void *handle; /* User-space: "Handle" to pass to mmap */
595 /* Kernel-space: kernel-virtual address */
596 int mtrr; /* Boolean: MTRR used */
598 int rid; /* PCI resource ID for bus_space */
599 void *virtual; /* Kernel-space: kernel-virtual address */
600 struct resource *bsr;
602 bus_space_handle_t bsh;
603 drm_dma_handle_t *dmah;
604 TAILQ_ENTRY(drm_local_map) link;
607 typedef struct drm_local_map drm_local_map_t;
612 struct drm_map_list {
613 struct list_head head; /**< list head */
614 struct drm_hash_item hash;
615 struct drm_local_map *map; /**< mapping */
617 struct drm_master *master;
618 struct drm_mm_node *file_offset_node; /**< fake offset */
621 struct drm_vblank_info {
622 wait_queue_head_t queue; /* vblank wait queue */
623 atomic_t count; /* number of VBLANK interrupts */
624 /* (driver must alloc the right number of counters) */
625 atomic_t refcount; /* number of users of vblank interrupts */
626 u32 last; /* protected by dev->vbl_lock, used */
627 /* for wraparound handling */
628 int enabled; /* so we don't call enable more than */
629 /* once per disable */
630 int inmodeset; /* Display driver is setting mode */
633 /* location of GART table */
634 #define DRM_ATI_GART_MAIN 1
635 #define DRM_ATI_GART_FB 2
637 #define DRM_ATI_GART_PCI 1
638 #define DRM_ATI_GART_PCIE 2
639 #define DRM_ATI_GART_IGP 3
641 struct drm_ati_pcigart_info {
642 int gart_table_location;
646 dma_addr_t table_mask;
647 dma_addr_t member_mask;
648 struct drm_dma_handle *table_handle;
649 drm_local_map_t mapping;
651 struct drm_dma_handle *dmah; /* handle for ATI PCIGART table */
655 * GEM specific mm private for tracking GEM objects
658 struct drm_open_hash offset_hash; /**< User token hash table for maps */
659 struct unrhdr *idxunr;
662 struct drm_gem_object {
663 /** Reference count of this object */
664 struct kref refcount;
666 /** Handle count of this object. Each handle also holds a reference */
667 atomic_t handle_count; /* number of handles on this object */
669 /** Related drm device */
670 struct drm_device *dev;
672 /** File representing the shmem storage: filp in Linux parlance */
676 struct drm_hash_item map_list;
679 * Size of the object, in bytes. Immutable over the object's
685 * Global name for this object, starts at 1. 0 means unnamed.
686 * Access is covered by the object_name_lock in the related drm_device
691 * Memory domains. These monitor which caches contain read/write data
692 * related to the object. When transitioning from one set of domains
693 * to another, the driver is called to ensure that caches are suitably
694 * flushed and invalidated
696 uint32_t read_domains;
697 uint32_t write_domain;
700 * While validating an exec operation, the
701 * new read/write domain values are computed here.
702 * They will be transferred to the above values
703 * at the point that any cache flushing occurs
705 uint32_t pending_read_domains;
706 uint32_t pending_write_domain;
708 void *driver_private;
711 /* dma buf exported from this GEM object */
712 struct dma_buf *export_dma_buf;
714 /* dma buf attachment backing this object */
715 struct dma_buf_attachment *import_attach;
716 #endif /* DUMBBELL_WIP */
719 #include "drm_crtc.h"
721 /* per-master structure */
724 struct kref refcount; /* refcount for this master */
726 struct list_head head; /**< each minor contains a list of masters */
727 struct drm_minor *minor; /**< link back to minor we are a master for */
729 char *unique; /**< Unique identifier: e.g., busid */
730 int unique_len; /**< Length of unique field */
731 int unique_size; /**< amount allocated */
733 int blocked; /**< Blocked due to VC switch? */
735 /** \name Authentication */
737 struct drm_open_hash magiclist;
738 struct list_head magicfree;
741 struct drm_lock_data lock; /**< Information on hardware lock */
743 void *driver_priv; /**< Private structure for driver to use */
746 /* Size of ringbuffer for vblank timestamps. Just double-buffer
747 * in initial implementation.
749 #define DRM_VBLANKTIME_RBSIZE 2
751 /* Flags and return codes for get_vblank_timestamp() driver function. */
752 #define DRM_CALLED_FROM_VBLIRQ 1
753 #define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0)
754 #define DRM_VBLANKTIME_INVBL (1 << 1)
756 /* get_scanout_position() return flags */
757 #define DRM_SCANOUTPOS_VALID (1 << 0)
758 #define DRM_SCANOUTPOS_INVBL (1 << 1)
759 #define DRM_SCANOUTPOS_ACCURATE (1 << 2)
762 #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1)
765 #define upper_32_bits(n) ((u32)(((n) >> 16) >> 16))
768 int (*load)(struct drm_device *, unsigned long flags);
769 int (*use_msi)(struct drm_device *, unsigned long flags);
770 int (*firstopen)(struct drm_device *);
771 int (*open)(struct drm_device *, struct drm_file *);
772 void (*preclose)(struct drm_device *, struct drm_file *file_priv);
773 void (*postclose)(struct drm_device *, struct drm_file *);
774 void (*lastclose)(struct drm_device *);
775 int (*unload)(struct drm_device *);
776 void (*reclaim_buffers_locked)(struct drm_device *,
777 struct drm_file *file_priv);
778 int (*dma_ioctl)(struct drm_device *dev, void *data,
779 struct drm_file *file_priv);
780 void (*dma_ready)(struct drm_device *);
781 int (*dma_quiescent)(struct drm_device *);
782 int (*dma_flush_block_and_flush)(struct drm_device *, int context,
783 enum drm_lock_flags flags);
784 int (*dma_flush_unblock)(struct drm_device *, int context,
785 enum drm_lock_flags flags);
786 int (*context_ctor)(struct drm_device *dev, int context);
787 int (*context_dtor)(struct drm_device *dev, int context);
788 int (*kernel_context_switch)(struct drm_device *dev, int old,
790 int (*kernel_context_switch_unlock)(struct drm_device *dev);
791 void (*irq_preinstall)(struct drm_device *dev);
792 int (*irq_postinstall)(struct drm_device *dev);
793 void (*irq_uninstall)(struct drm_device *dev);
794 void (*irq_handler)(DRM_IRQ_ARGS);
796 u32 (*get_vblank_counter)(struct drm_device *dev, int crtc);
797 int (*enable_vblank)(struct drm_device *dev, int crtc);
798 void (*disable_vblank)(struct drm_device *dev, int crtc);
799 int (*get_scanout_position)(struct drm_device *dev, int crtc,
800 int *vpos, int *hpos);
802 int (*get_vblank_timestamp)(struct drm_device *dev, int crtc,
803 int *max_error, struct timeval *vblank_time,
806 int (*gem_init_object)(struct drm_gem_object *obj);
807 void (*gem_free_object)(struct drm_gem_object *obj);
808 int (*gem_open_object)(struct drm_gem_object *, struct drm_file *);
809 void (*gem_close_object)(struct drm_gem_object *, struct drm_file *);
811 struct cdev_pager_ops *gem_pager_ops;
813 int (*dumb_create)(struct drm_file *file_priv,
814 struct drm_device *dev, struct drm_mode_create_dumb *args);
815 int (*dumb_map_offset)(struct drm_file *file_priv,
816 struct drm_device *dev, uint32_t handle, uint64_t *offset);
817 int (*dumb_destroy)(struct drm_file *file_priv,
818 struct drm_device *dev, uint32_t handle);
820 int (*sysctl_init)(struct drm_device *dev,
821 struct sysctl_ctx_list *ctx, struct sysctl_oid *top);
822 void (*sysctl_cleanup)(struct drm_device *dev);
824 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */
827 * Called by \c drm_device_is_agp. Typically used to determine if a
828 * card is really attached to AGP or not.
830 * \param dev DRM device handle
833 * One of three values is returned depending on whether or not the
834 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
835 * (return of 1), or may or may not be AGP (return of 2).
837 int (*device_is_agp) (struct drm_device * dev);
839 drm_ioctl_desc_t *ioctls;
840 #ifdef COMPAT_FREEBSD32
841 drm_ioctl_desc_t *compat_ioctls;
842 int *compat_ioctls_nr;
850 const char *name; /* Simple driver name */
851 const char *desc; /* Longer driver name */
852 const char *date; /* Date of last major changes. */
859 * DRM minor structure. This structure represents a drm minor number.
862 int index; /**< Minor device number */
863 int type; /**< Control or render */
864 device_t kdev; /**< OS device */
865 struct drm_device *dev;
867 struct drm_master *master; /* currently active master for this node */
868 struct list_head master_list;
869 struct drm_mode_group mode_group;
872 /* mode specified on the command line */
873 struct drm_cmdline_mode {
875 bool refresh_specified;
884 enum drm_connector_force force;
888 struct drm_pending_vblank_event {
889 struct drm_pending_event base;
891 struct drm_event_vblank event;
894 /* Length for the array of resource pointers for drm_get_resource_*. */
895 #define DRM_MAX_PCI_RESOURCE 6
898 * DRM device structure. This structure represent a complete card that
899 * may contain multiple heads.
902 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */
904 uint16_t pci_device; /* PCI device id */
905 uint16_t pci_vendor; /* PCI vendor id */
906 uint16_t pci_subdevice; /* PCI subsystem device id */
907 uint16_t pci_subvendor; /* PCI subsystem vendor id */
909 char *unique; /* Unique identifier: e.g., busid */
910 int unique_len; /* Length of unique field */
911 struct cdev *devnode; /* Device number for mknod */
912 int if_version; /* Highest interface version set */
914 int flags; /* Flags to open(2) */
917 struct spinlock dma_lock; /* protects dev->dma */
918 struct lwkt_serialize irq_lock; /* protects irq condition checks */
919 struct lock dev_lock; /* protects everything else */
920 struct lock dev_struct_lock;
923 int open_count; /* Outstanding files open */
924 int buf_use; /* Buffers in use -- cannot alloc */
926 /* Performance counters */
927 unsigned long counters;
928 enum drm_stat_type types[15];
932 drm_magic_head_t magiclist[DRM_HASH_SIZE];
936 struct lock struct_mutex; /**< For others */
939 struct list_head filelist;
941 /** \name Memory management */
943 struct list_head maplist; /**< Linked list of regions */
944 struct unrhdr *map_unrhdr;
946 drm_local_map_t **context_sareas;
949 struct drm_lock_data lock; /* Information on hardware lock */
951 /* DMA queues (contexts) */
952 drm_device_dma_t *dma; /* Optional pointer for DMA support */
954 /* Context support */
955 int irq; /* Interrupt used by board */
956 int msi_enabled; /* MSI enabled */
957 int irqrid; /* Interrupt used by board */
958 struct resource *irqr; /* Resource for interrupt used by board */
959 void *irqh; /* Handle from bus_setup_intr */
961 /* Storage of resource pointers for drm_get_resource_* */
962 struct resource *pcir[DRM_MAX_PCI_RESOURCE];
963 int pcirid[DRM_MAX_PCI_RESOURCE];
970 /** \name Context support */
972 int irq_enabled; /**< True if irq handler is enabled */
973 __volatile__ long context_flag; /**< Context swapping flag */
974 int last_context; /**< Last current context */
979 struct sigio *buf_sigio; /* Processes waiting for SIGIO */
982 struct drm_sysctl_info *sysctl;
987 struct device *dev; /**< Device structure */
989 drm_sg_mem_t *sg; /* Scatter gather memory */
990 unsigned long *ctx_bitmap;
996 * At load time, disabling the vblank interrupt won't be allowed since
997 * old clients may not call the modeset ioctl and therefore misbehave.
998 * Once the modeset ioctl *has* been called though, we can safely
999 * disable them when unused.
1001 int vblank_disable_allowed;
1003 wait_queue_head_t *vbl_queue; /**< VBLANK wait queue */
1004 atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */
1005 struct timeval *_vblank_time; /**< timestamp of current vblank_count (drivers must alloc right number of fields) */
1006 struct lock vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */
1007 struct lock vbl_lock;
1008 atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */
1009 u32 *last_vblank; /* protected by dev->vbl_lock, used */
1010 /* for wraparound handling */
1011 int *vblank_enabled; /* so we don't call enable more than
1013 int *vblank_inmodeset; /* Display driver is setting mode */
1014 u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */
1015 struct timer_list vblank_disable_timer;
1017 u32 max_vblank_count; /**< size of vblank counter register */
1022 struct list_head vblank_event_list;
1023 struct lock event_lock;
1025 struct drm_driver *driver;
1026 struct drm_local_map *agp_buffer_map;
1027 unsigned int agp_buffer_token;
1028 struct drm_minor *control; /**< Control node for card */
1029 struct drm_minor *primary; /**< render type primary screen head */
1031 struct drm_mode_config mode_config; /**< Current mode config */
1033 /** \name GEM information */
1035 struct lock object_name_lock;
1036 struct idr object_name_idr;
1040 void *sysctl_private;
1041 char busid_str[128];
1044 int switch_power_state;
1047 #define DRM_SWITCH_POWER_ON 0
1048 #define DRM_SWITCH_POWER_OFF 1
1049 #define DRM_SWITCH_POWER_CHANGING 2
1051 static __inline__ int drm_core_check_feature(struct drm_device *dev,
1054 return ((dev->driver->driver_features & feature) ? 1 : 0);
1058 static inline int drm_core_has_AGP(struct drm_device *dev)
1060 return drm_core_check_feature(dev, DRIVER_USE_AGP);
1063 #define drm_core_has_AGP(dev) (0)
1073 DMI_PRODUCT_VERSION,
1080 DMI_BOARD_ASSET_TAG,
1083 DMI_CHASSIS_VERSION,
1085 DMI_CHASSIS_ASSET_TAG,
1089 struct dmi_strmatch {
1094 struct dmi_system_id {
1095 int (*callback)(const struct dmi_system_id *);
1097 struct dmi_strmatch matches[4];
1099 #define DMI_MATCH(a, b) {(a), (b)}
1100 bool dmi_check_system(const struct dmi_system_id *);
1102 extern int drm_notyet_flag;
1103 extern int drm_debug;
1105 extern unsigned int drm_vblank_offdelay;
1106 extern unsigned int drm_timestamp_precision;
1107 extern unsigned int drm_timestamp_monotonic;
1109 /* Device setup support (drm_drv.c) */
1110 int drm_probe(device_t kdev, drm_pci_id_list_t *idlist);
1111 int drm_attach(device_t kdev, drm_pci_id_list_t *idlist);
1112 int drm_create_cdevs(device_t kdev);
1113 int drm_detach(device_t kdev);
1114 d_ioctl_t drm_ioctl;
1116 d_close_t drm_close;
1118 d_kqfilter_t drm_kqfilter;
1120 d_mmap_single_t drm_mmap_single;
1121 extern drm_local_map_t *drm_getsarea(struct drm_device *dev);
1123 void drm_cdevpriv_dtor(void *cd);
1125 void drm_event_wakeup(struct drm_pending_event *e);
1127 int drm_add_busid_modesetting(struct drm_device *dev,
1128 struct sysctl_ctx_list *ctx, struct sysctl_oid *top);
1130 /* File operations helpers (drm_fops.c) */
1131 extern int drm_open_helper(struct cdev *kdev, int flags, int fmt,
1133 struct drm_device *dev,
1135 extern struct drm_file *drm_find_file_by_proc(struct drm_device *dev,
1139 extern int drm_gem_prime_handle_to_fd(struct drm_device *dev,
1140 struct drm_file *file_priv, uint32_t handle, uint32_t flags,
1142 extern int drm_gem_prime_fd_to_handle(struct drm_device *dev,
1143 struct drm_file *file_priv, int prime_fd, uint32_t *handle);
1145 extern int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data,
1146 struct drm_file *file_priv);
1147 extern int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data,
1148 struct drm_file *file_priv);
1155 extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, vm_page_t *pages,
1156 dma_addr_t *addrs, int max_pages);
1157 #endif /* DUMBBELL_WIP */
1158 extern struct sg_table *drm_prime_pages_to_sg(vm_page_t *pages, int nr_pages);
1159 extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg);
1162 void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv);
1163 void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv);
1164 int drm_prime_add_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t handle);
1165 int drm_prime_lookup_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t *handle);
1166 void drm_prime_remove_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf);
1168 int drm_prime_add_dma_buf(struct drm_device *dev, struct drm_gem_object *obj);
1169 int drm_prime_lookup_obj(struct drm_device *dev, struct dma_buf *buf,
1170 struct drm_gem_object **obj);
1171 #endif /* DUMBBELL_WIP */
1173 /* Memory management support (drm_memory.c) */
1174 void drm_mem_init(void);
1175 void drm_mem_uninit(void);
1176 void *drm_ioremap_wc(struct drm_device *dev, drm_local_map_t *map);
1177 void *drm_ioremap(struct drm_device *dev, drm_local_map_t *map);
1178 void drm_ioremapfree(drm_local_map_t *map);
1179 int drm_mtrr_add(unsigned long offset, size_t size, int flags);
1180 int drm_mtrr_del(int handle, unsigned long offset, size_t size, int flags);
1182 int drm_ctxbitmap_init(struct drm_device *dev);
1183 void drm_ctxbitmap_cleanup(struct drm_device *dev);
1184 void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
1185 int drm_ctxbitmap_next(struct drm_device *dev);
1187 /* Locking IOCTL support (drm_lock.c) */
1188 int drm_lock_take(struct drm_lock_data *lock_data,
1189 unsigned int context);
1190 int drm_lock_transfer(struct drm_lock_data *lock_data,
1191 unsigned int context);
1192 int drm_lock_free(struct drm_lock_data *lock_data,
1193 unsigned int context);
1196 * These are exported to drivers so that they can implement fencing using
1197 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
1200 unsigned long drm_get_resource_start(struct drm_device *dev,
1201 unsigned int resource);
1202 unsigned long drm_get_resource_len(struct drm_device *dev,
1203 unsigned int resource);
1204 void drm_rmmap(struct drm_device *dev, drm_local_map_t *map);
1205 int drm_order(unsigned long size);
1206 int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc *request);
1207 int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc *request);
1208 extern int drm_addmap(struct drm_device *dev, resource_size_t offset,
1209 unsigned int size, enum drm_map_type type,
1210 enum drm_map_flags flags, struct drm_local_map **map_ptr);
1212 /* DMA support (drm_dma.c) */
1213 int drm_dma_setup(struct drm_device *dev);
1214 void drm_dma_takedown(struct drm_device *dev);
1215 void drm_free_buffer(struct drm_device *dev, drm_buf_t *buf);
1216 void drm_reclaim_buffers(struct drm_device *dev, struct drm_file *file_priv);
1217 #define drm_core_reclaim_buffers drm_reclaim_buffers
1219 /* IRQ support (drm_irq.h) */
1220 int drm_irq_install(struct drm_device *dev);
1221 int drm_irq_uninstall(struct drm_device *dev);
1222 void drm_driver_irq_preinstall(struct drm_device *dev);
1223 void drm_driver_irq_postinstall(struct drm_device *dev);
1224 void drm_driver_irq_uninstall(struct drm_device *dev);
1226 void drm_vblank_pre_modeset(struct drm_device *dev, int crtc);
1227 void drm_vblank_post_modeset(struct drm_device *dev, int crtc);
1228 int drm_modeset_ctl(struct drm_device *dev, void *data,
1229 struct drm_file *file_priv);
1231 extern int drm_vblank_init(struct drm_device *dev, int num_crtcs);
1232 extern int drm_wait_vblank(struct drm_device *dev, void *data,
1233 struct drm_file *filp);
1234 extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq);
1235 extern u32 drm_vblank_count(struct drm_device *dev, int crtc);
1236 extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc,
1237 struct timeval *vblanktime);
1238 extern void drm_send_vblank_event(struct drm_device *dev, int crtc,
1239 struct drm_pending_vblank_event *e);
1240 extern bool drm_handle_vblank(struct drm_device *dev, int crtc);
1241 void drm_handle_vblank_events(struct drm_device *dev, int crtc);
1242 extern int drm_vblank_get(struct drm_device *dev, int crtc);
1243 extern void drm_vblank_put(struct drm_device *dev, int crtc);
1244 extern void drm_vblank_off(struct drm_device *dev, int crtc);
1245 extern void drm_vblank_cleanup(struct drm_device *dev);
1246 extern u32 drm_get_last_vbltimestamp(struct drm_device *dev, int crtc,
1247 struct timeval *tvblank, unsigned flags);
1248 extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev,
1249 int crtc, int *max_error,
1250 struct timeval *vblank_time,
1252 struct drm_crtc *refcrtc);
1253 extern void drm_calc_timestamping_constants(struct drm_crtc *crtc);
1255 /* AGP/PCI Express/GART support (drm_agpsupport.c) */
1256 int drm_device_is_agp(struct drm_device *dev);
1257 int drm_device_is_pcie(struct drm_device *dev);
1258 drm_agp_head_t *drm_agp_init(void);
1259 int drm_agp_acquire(struct drm_device *dev);
1260 int drm_agp_release(struct drm_device *dev);
1261 int drm_agp_info(struct drm_device * dev, struct drm_agp_info *info);
1262 int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode);
1263 void *drm_agp_allocate_memory(size_t pages, u32 type);
1264 int drm_agp_free_memory(void *handle);
1265 int drm_agp_bind_memory(void *handle, off_t start);
1266 int drm_agp_unbind_memory(void *handle);
1267 int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request);
1268 int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request);
1269 int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
1270 int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request);
1272 /* Scatter Gather Support (drm_scatter.c) */
1273 void drm_sg_cleanup(drm_sg_mem_t *entry);
1274 int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request);
1276 /* sysctl support (drm_sysctl.h) */
1277 extern int drm_sysctl_init(struct drm_device *dev);
1278 extern int drm_sysctl_cleanup(struct drm_device *dev);
1280 /* ATI PCIGART support (ati_pcigart.c) */
1281 int drm_ati_pcigart_init(struct drm_device *dev,
1282 struct drm_ati_pcigart_info *gart_info);
1283 int drm_ati_pcigart_cleanup(struct drm_device *dev,
1284 struct drm_ati_pcigart_info *gart_info);
1286 /* Cache management (drm_memory.c) */
1287 void drm_clflush_pages(vm_page_t *pages, unsigned long num_pages);
1289 /* Locking IOCTL support (drm_drv.c) */
1290 int drm_lock(struct drm_device *dev, void *data,
1291 struct drm_file *file_priv);
1292 int drm_unlock(struct drm_device *dev, void *data,
1293 struct drm_file *file_priv);
1294 int drm_version(struct drm_device *dev, void *data,
1295 struct drm_file *file_priv);
1296 int drm_setversion(struct drm_device *dev, void *data,
1297 struct drm_file *file_priv);
1299 /* Misc. IOCTL support (drm_ioctl.c) */
1300 int drm_irq_by_busid(struct drm_device *dev, void *data,
1301 struct drm_file *file_priv);
1302 int drm_getunique(struct drm_device *dev, void *data,
1303 struct drm_file *file_priv);
1304 int drm_setunique(struct drm_device *dev, void *data,
1305 struct drm_file *file_priv);
1306 int drm_getmap(struct drm_device *dev, void *data,
1307 struct drm_file *file_priv);
1308 int drm_getclient(struct drm_device *dev, void *data,
1309 struct drm_file *file_priv);
1310 int drm_getstats(struct drm_device *dev, void *data,
1311 struct drm_file *file_priv);
1312 int drm_getcap(struct drm_device *dev, void *data,
1313 struct drm_file *file_priv);
1314 int drm_noop(struct drm_device *dev, void *data,
1315 struct drm_file *file_priv);
1317 /* Context IOCTL support (drm_context.c) */
1318 int drm_resctx(struct drm_device *dev, void *data,
1319 struct drm_file *file_priv);
1320 int drm_addctx(struct drm_device *dev, void *data,
1321 struct drm_file *file_priv);
1322 int drm_modctx(struct drm_device *dev, void *data,
1323 struct drm_file *file_priv);
1324 int drm_getctx(struct drm_device *dev, void *data,
1325 struct drm_file *file_priv);
1326 int drm_switchctx(struct drm_device *dev, void *data,
1327 struct drm_file *file_priv);
1328 int drm_newctx(struct drm_device *dev, void *data,
1329 struct drm_file *file_priv);
1330 int drm_rmctx(struct drm_device *dev, void *data,
1331 struct drm_file *file_priv);
1332 int drm_setsareactx(struct drm_device *dev, void *data,
1333 struct drm_file *file_priv);
1334 int drm_getsareactx(struct drm_device *dev, void *data,
1335 struct drm_file *file_priv);
1337 /* Authentication IOCTL support (drm_auth.c) */
1338 int drm_getmagic(struct drm_device *dev, void *data,
1339 struct drm_file *file_priv);
1340 int drm_authmagic(struct drm_device *dev, void *data,
1341 struct drm_file *file_priv);
1343 /* Buffer management support (drm_bufs.c) */
1344 int drm_addmap_ioctl(struct drm_device *dev, void *data,
1345 struct drm_file *file_priv);
1346 int drm_rmmap_ioctl(struct drm_device *dev, void *data,
1347 struct drm_file *file_priv);
1348 int drm_addbufs(struct drm_device *dev, void *data,
1349 struct drm_file *file_priv);
1350 int drm_infobufs(struct drm_device *dev, void *data,
1351 struct drm_file *file_priv);
1352 int drm_markbufs(struct drm_device *dev, void *data,
1353 struct drm_file *file_priv);
1354 int drm_freebufs(struct drm_device *dev, void *data,
1355 struct drm_file *file_priv);
1356 int drm_mapbufs(struct drm_device *dev, void *data,
1357 struct drm_file *file_priv);
1359 /* DMA support (drm_dma.c) */
1360 int drm_dma(struct drm_device *dev, void *data, struct drm_file *file_priv);
1362 /* IRQ support (drm_irq.c) */
1363 int drm_control(struct drm_device *dev, void *data,
1364 struct drm_file *file_priv);
1366 /* AGP/GART support (drm_agpsupport.c) */
1367 int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
1368 struct drm_file *file_priv);
1369 int drm_agp_release_ioctl(struct drm_device *dev, void *data,
1370 struct drm_file *file_priv);
1371 int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
1372 struct drm_file *file_priv);
1373 int drm_agp_info_ioctl(struct drm_device *dev, void *data,
1374 struct drm_file *file_priv);
1375 int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
1376 struct drm_file *file_priv);
1377 int drm_agp_free_ioctl(struct drm_device *dev, void *data,
1378 struct drm_file *file_priv);
1379 int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
1380 struct drm_file *file_priv);
1381 int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
1382 struct drm_file *file_priv);
1384 /* Stub support (drm_stub.h) */
1385 extern int drm_setmaster_ioctl(struct drm_device *dev, void *data,
1386 struct drm_file *file_priv);
1387 extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
1388 struct drm_file *file_priv);
1390 /* Scatter Gather Support (drm_scatter.c) */
1391 int drm_sg_alloc_ioctl(struct drm_device *dev, void *data,
1392 struct drm_file *file_priv);
1393 int drm_sg_free(struct drm_device *dev, void *data,
1394 struct drm_file *file_priv);
1396 /* consistent PCI memory functions (drm_pci.c) */
1397 drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
1398 size_t align, dma_addr_t maxaddr);
1399 void drm_pci_free(struct drm_device *dev, drm_dma_handle_t *dmah);
1401 /* sysfs support (drm_sysfs.c) */
1402 extern char *drm_get_connector_status_name(enum drm_connector_status status);
1404 /* Graphics Execution Manager library functions (drm_gem.c) */
1405 int drm_gem_init(struct drm_device *dev);
1406 void drm_gem_destroy(struct drm_device *dev);
1407 void drm_gem_object_release(struct drm_gem_object *obj);
1408 void drm_gem_object_free(struct kref *kref);
1410 int drm_gem_close_ioctl(struct drm_device *dev, void *data,
1411 struct drm_file *file_priv);
1412 int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
1413 struct drm_file *file_priv);
1414 int drm_gem_open_ioctl(struct drm_device *dev, void *data,
1415 struct drm_file *file_priv);
1416 void drm_gem_object_handle_free(struct drm_gem_object *obj);
1418 #include <drm/drm_global.h>
1421 drm_gem_object_reference(struct drm_gem_object *obj)
1423 kref_get(&obj->refcount);
1427 drm_gem_object_unreference(struct drm_gem_object *obj)
1430 kref_put(&obj->refcount, drm_gem_object_free);
1434 drm_gem_object_unreference_unlocked(struct drm_gem_object *obj)
1437 struct drm_device *dev = obj->dev;
1439 kref_put(&obj->refcount, drm_gem_object_free);
1444 int drm_gem_handle_create(struct drm_file *file_priv,
1445 struct drm_gem_object *obj,
1447 int drm_gem_handle_delete(struct drm_file *filp, u32 handle);
1450 drm_gem_object_handle_reference(struct drm_gem_object *obj)
1452 drm_gem_object_reference(obj);
1453 atomic_inc(&obj->handle_count);
1457 drm_gem_object_handle_unreference(struct drm_gem_object *obj)
1462 if (atomic_read(&obj->handle_count) == 0)
1465 * Must bump handle count first as this may be the last
1466 * ref, in which case the object would disappear before we
1467 * checked for a name
1469 if (atomic_dec_and_test(&obj->handle_count))
1470 drm_gem_object_handle_free(obj);
1471 drm_gem_object_unreference(obj);
1475 drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj)
1480 if (atomic_read(&obj->handle_count) == 0)
1484 * Must bump handle count first as this may be the last
1485 * ref, in which case the object would disappear before we
1486 * checked for a name
1489 if (atomic_dec_and_test(&obj->handle_count))
1490 drm_gem_object_handle_free(obj);
1491 drm_gem_object_unreference_unlocked(obj);
1494 int drm_gem_object_init(struct drm_device *dev, struct drm_gem_object *obj,
1496 int drm_gem_private_object_init(struct drm_device *dev,
1497 struct drm_gem_object *obj, size_t size);
1498 struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev,
1500 struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev,
1501 struct drm_file *file_priv, uint32_t handle);
1503 void drm_gem_open(struct drm_device *dev, struct drm_file *file_priv);
1504 void drm_gem_release(struct drm_device *dev, struct drm_file *file_priv);
1506 int drm_gem_create_mmap_offset(struct drm_gem_object *obj);
1507 void drm_gem_free_mmap_offset(struct drm_gem_object *obj);
1508 int drm_gem_mmap_single(struct drm_device *dev, vm_ooffset_t *offset,
1509 vm_size_t size, struct vm_object **obj_res, int nprot);
1510 void drm_gem_pager_dtr(void *obj);
1512 struct ttm_bo_device;
1513 int ttm_bo_mmap_single(struct ttm_bo_device *bdev, vm_ooffset_t *offset,
1514 vm_size_t size, struct vm_object **obj_res, int nprot);
1515 struct ttm_buffer_object;
1516 void ttm_bo_release_mmap(struct ttm_buffer_object *bo);
1518 void drm_device_lock_mtx(struct drm_device *dev);
1519 void drm_device_unlock_mtx(struct drm_device *dev);
1520 int drm_device_sleep_mtx(struct drm_device *dev, void *chan, int flags,
1521 const char *msg, int timeout);
1522 void drm_device_assert_mtx_locked(struct drm_device *dev);
1523 void drm_device_assert_mtx_unlocked(struct drm_device *dev);
1525 void drm_device_lock_struct(struct drm_device *dev);
1526 void drm_device_unlock_struct(struct drm_device *dev);
1527 int drm_device_sleep_struct(struct drm_device *dev, void *chan, int flags,
1528 const char *msg, int timeout);
1529 void drm_device_assert_struct_locked(struct drm_device *dev);
1530 void drm_device_assert_struct_unlocked(struct drm_device *dev);
1532 void drm_compat_locking_init(struct drm_device *dev);
1533 void drm_sleep_locking_init(struct drm_device *dev);
1536 bool drm_mode_parse_command_line_for_connector(const char *mode_option,
1537 struct drm_connector *connector, struct drm_cmdline_mode *mode);
1538 struct drm_display_mode *drm_mode_create_from_cmdline_mode(
1539 struct drm_device *dev, struct drm_cmdline_mode *cmd);
1541 /* Inline replacements for drm_alloc and friends */
1542 static __inline__ void *
1543 drm_alloc(size_t size, struct malloc_type *area)
1545 return kmalloc(size, area, M_NOWAIT);
1548 static __inline__ void *
1549 drm_calloc(size_t nmemb, size_t size, struct malloc_type *area)
1551 return kmalloc(size * nmemb, area, M_NOWAIT | M_ZERO);
1554 static __inline__ void *
1555 drm_realloc(void *oldpt, size_t oldsize, size_t size,
1556 struct malloc_type *area)
1559 res = krealloc(oldpt, size, area, M_NOWAIT);
1560 if (res == NULL && oldpt != NULL)
1565 static __inline__ void
1566 drm_free(void *pt, struct malloc_type *area)
1572 /* Inline replacements for DRM_IOREMAP macros */
1573 static __inline__ void
1574 drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev)
1576 map->virtual = drm_ioremap_wc(dev, map);
1578 static __inline__ void
1579 drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev)
1581 map->virtual = drm_ioremap(dev, map);
1583 static __inline__ void
1584 drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev)
1586 if ( map->virtual && map->size )
1587 drm_ioremapfree(map);
1590 static __inline__ struct drm_local_map *
1591 drm_core_findmap(struct drm_device *dev, unsigned long offset)
1593 struct drm_map_list *_entry;
1595 list_for_each_entry(_entry, &dev->maplist, head) {
1596 if (offset == (unsigned long)_entry->map->handle)
1602 static __inline__ void drm_core_dropmap(struct drm_map *map)
1606 #include <drm/drm_mem_util.h>
1608 /* FreeBSD compatibility macros */
1609 #define PROC_LOCK(p)
1610 #define PROC_UNLOCK(p)
1612 #define VM_OBJECT_RLOCK(object) VM_OBJECT_LOCK(object)
1613 #define VM_OBJECT_RUNLOCK(object) VM_OBJECT_UNLOCK(object)
1614 #define VM_OBJECT_WLOCK(object) VM_OBJECT_LOCK(object)
1615 #define VM_OBJECT_WUNLOCK(object) VM_OBJECT_UNLOCK(object)
1617 #define CTR2(one,two,three,four)
1619 #define DRM_PCIE_SPEED_25 1
1620 #define DRM_PCIE_SPEED_50 2
1621 #define DRM_PCIE_SPEED_80 4
1623 extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask);
1625 #define drm_can_sleep() (DRM_HZ & 1)
1627 #endif /* __KERNEL__ */
1628 #endif /* _DRM_P_H_ */