3 * Private header for Direct Rendering Manager
5 * \author Rickard E. (Rik) Faith <faith@valinux.com>
6 * \author Gareth Hughes <gareth@valinux.com>
10 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
11 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
12 * Copyright (c) 2009-2010, Code Aurora Forum.
13 * All rights reserved.
15 * Permission is hereby granted, free of charge, to any person obtaining a
16 * copy of this software and associated documentation files (the "Software"),
17 * to deal in the Software without restriction, including without limitation
18 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
19 * and/or sell copies of the Software, and to permit persons to whom the
20 * Software is furnished to do so, subject to the following conditions:
22 * The above copyright notice and this permission notice (including the next
23 * paragraph) shall be included in all copies or substantial portions of the
26 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
27 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
28 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
29 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
30 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
31 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
32 * OTHER DEALINGS IN THE SOFTWARE.
34 * $FreeBSD: head/sys/dev/drm2/drmP.h 255045 2013-08-29 23:09:34Z jkim $
40 #if defined(_KERNEL) || defined(__KERNEL__)
42 #include <sys/param.h>
43 #include <sys/queue.h>
44 #include <sys/malloc.h>
45 #include <sys/kernel.h>
47 #include <sys/module.h>
48 #include <sys/systm.h>
49 #include <sys/device.h>
50 #include <sys/sglist.h>
55 #include <sys/spinlock.h>
56 #include <sys/spinlock2.h>
57 #include <sys/fcntl.h>
59 #include <sys/filio.h>
60 #include <sys/sysctl.h>
62 #include <sys/queue.h>
63 #include <sys/signalvar.h>
66 #include <sys/taskqueue.h>
70 #include <vm/vm_extern.h>
71 #include <vm/vm_kern.h>
72 #include <vm/vm_map.h>
73 #include <vm/vm_object.h>
74 #include <vm/vm_page2.h>
75 #include <vm/vm_pager.h>
76 #include <vm/vm_param.h>
77 #include <machine/param.h>
78 #include <machine/pmap.h>
79 #if defined(__i386__) || defined(__amd64__)
80 #include <machine/specialreg.h>
82 #include <machine/sysarch.h>
83 #include <sys/endian.h>
86 #include <sys/memrange.h>
87 #include <dev/agp/agpvar.h>
88 #include <sys/agpio.h>
89 #include <sys/mutex.h>
90 #include <bus/pci/pcivar.h>
91 #include <bus/pci/pcireg.h>
93 #include <uapi_drm/drm.h>
94 #include <uapi_drm/drm_sarea.h>
96 #include <linux/atomic.h>
97 #include <linux/err.h>
98 #include <linux/idr.h>
99 #include <linux/pci.h>
100 #include <linux/jiffies.h>
101 #include <linux/kernel.h>
102 #include <linux/kref.h>
103 #include <linux/list.h>
104 #include <linux/mm.h>
105 #include <linux/mutex.h>
106 #include <linux/timer.h>
108 #include <linux/types.h>
109 #include <linux/wait.h>
111 #include <asm/uaccess.h>
116 #include <drm/drm_os_linux.h>
117 #include <drm/drm_hashtab.h>
118 #include <drm/drm_mm.h>
120 #define DRM_UT_CORE 0x01
121 #define DRM_UT_DRIVER 0x02
122 #define DRM_UT_KMS 0x04
123 #define DRM_UT_PRIME 0x08
128 #define DRM_DEBUG_DEFAULT_ON 1
129 #endif /* DRM_DEBUG */
131 #define DRM_DEBUGBITS_DEBUG 0x1
132 #define DRM_DEBUGBITS_KMS 0x2
133 #define DRM_DEBUGBITS_FAILED_IOCTL 0x4
138 /***********************************************************************/
139 /** \name DRM template customization defaults */
142 /* driver capabilities and requirements mask */
143 #define DRIVER_USE_AGP 0x1
144 #define DRIVER_REQUIRE_AGP 0x2
145 #define DRIVER_USE_MTRR 0x4
146 #define DRIVER_PCI_DMA 0x8
147 #define DRIVER_SG 0x10
148 #define DRIVER_HAVE_DMA 0x20
149 #define DRIVER_HAVE_IRQ 0x40
150 #define DRIVER_IRQ_SHARED 0x80
151 #define DRIVER_IRQ_VBL 0x100
152 #define DRIVER_DMA_QUEUE 0x200
153 #define DRIVER_FB_DMA 0x400
154 #define DRIVER_IRQ_VBL2 0x800
155 #define DRIVER_GEM 0x1000
156 #define DRIVER_MODESET 0x2000
157 #define DRIVER_PRIME 0x4000
158 #define DRIVER_LOCKLESS_IRQ 0x8000
160 /***********************************************************************/
161 /** \name Begin the DRM... */
164 #define DRM_HASH_SIZE 16 /* Size of key hash table */
165 #define DRM_KERNEL_CONTEXT 0 /* Change drm_resctx if changed */
166 #define DRM_RESERVED_CONTEXTS 1 /* Change drm_resctx if changed */
168 #define DRM_GEM_MAPPING_MASK (3ULL << 62)
169 #define DRM_GEM_MAPPING_KEY (2ULL << 62) /* Non-canonical address form */
170 #define DRM_GEM_MAX_IDX 0x3fffff
171 #define DRM_GEM_MAPPING_IDX(o) (((o) >> 40) & DRM_GEM_MAX_IDX)
172 #define DRM_GEM_MAPPING_OFF(i) (((uint64_t)(i)) << 40)
173 #define DRM_GEM_MAPPING_MAPOFF(o) \
174 ((o) & ~(DRM_GEM_MAPPING_OFF(DRM_GEM_MAX_IDX) | DRM_GEM_MAPPING_KEY))
176 MALLOC_DECLARE(M_DRM);
178 SYSCTL_DECL(_hw_drm);
180 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
182 /***********************************************************************/
183 /** \name Internal types and structures */
186 #define DRM_ARRAY_SIZE(x) NELEM(x)
187 #define DRM_MIN(a,b) ((a)<(b)?(a):(b))
188 #define DRM_MAX(a,b) ((a)>(b)?(a):(b))
190 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
192 #define __OS_HAS_AGP 1
194 #define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP)
195 #define DRM_DEV_UID 0
196 #define DRM_DEV_GID 0
198 #define DRM_WAKEUP(w) wakeup((void *)w)
199 #define DRM_WAKEUP_INT(w) wakeup(w)
200 #define DRM_INIT_WAITQUEUE(queue) do {(void)(queue);} while (0)
202 #define DRM_CURPROC curthread
203 #define DRM_STRUCTPROC struct thread
204 #define DRM_CURRENTPID (curproc != NULL ? curproc->p_pid : -1)
205 #define DRM_LOCK(dev) lockmgr(&(dev)->dev_struct_lock, LK_EXCLUSIVE)
206 #define DRM_UNLOCK(dev) lockmgr(&(dev)->dev_struct_lock, LK_RELEASE)
207 #define DRM_LOCK_SLEEP(dev, chan, flags, msg, timeout) \
208 (lksleep((chan), &(dev)->dev_struct_lock, (flags), (msg), (timeout)))
209 #if defined(INVARIANTS)
210 #define DRM_LOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->dev_struct_lock, curthread) != 0);
211 #define DRM_UNLOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->dev_struct_lock, curthread) == 0);
213 #define DRM_LOCK_ASSERT(d)
214 #define DRM_UNLOCK_ASSERT(d)
217 #define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS)
219 #define DRM_IRQ_ARGS void *arg
220 typedef void irqreturn_t;
221 #define IRQ_HANDLED /* nothing */
222 #define IRQ_NONE /* nothing */
229 #define DRM_AGP_MEM struct agp_memory_info
231 #define drm_get_device_from_kdev(_kdev) (_kdev->si_drv1)
233 /* DRM_SUSER returns true if the user is superuser */
234 #define DRM_SUSER(p) (priv_check(p, PRIV_DRIVER) == 0)
235 #define DRM_AGP_FIND_DEVICE() agp_find_device()
236 #define DRM_MTRR_WC MDF_WRITECOMBINE
238 /* DRM_READMEMORYBARRIER() prevents reordering of reads.
239 * DRM_WRITEMEMORYBARRIER() prevents reordering of writes.
240 * DRM_MEMORYBARRIER() prevents reordering of reads and writes.
242 #define DRM_READMEMORYBARRIER() cpu_lfence()
243 #define DRM_WRITEMEMORYBARRIER() cpu_sfence()
244 #define DRM_MEMORYBARRIER() cpu_mfence()
246 #define DRM_VERIFYAREA_READ( uaddr, size ) \
247 (!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ))
249 #define DRM_COPY_TO_USER(user, kern, size) \
250 copyout(kern, user, size)
251 #define DRM_COPY_FROM_USER(kern, user, size) \
252 copyin(user, kern, size)
253 #define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \
254 copyin(arg2, arg1, arg3)
255 #define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \
256 copyout(arg2, arg1, arg3)
257 #define DRM_GET_USER_UNCHECKED(val, uaddr) \
258 ((val) = fuword32(uaddr), 0)
260 #define drm_can_sleep() (DRM_HZ & 1)
262 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
263 (_map) = (_dev)->context_sareas[_ctx]; \
266 #define LOCK_TEST_WITH_RETURN(dev, file_priv) \
268 if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) || \
269 dev->lock.file_priv != file_priv) { \
270 DRM_ERROR("%s called without lock held\n", \
276 /* Returns -errno to shared code */
277 #define DRM_WAIT_ON( ret, queue, timeout, condition ) \
278 for ( ret = 0 ; !ret && !(condition) ; ) { \
280 lwkt_serialize_enter(&dev->irq_lock); \
281 if (!(condition)) { \
282 tsleep_interlock(&(queue), PCATCH); \
283 lwkt_serialize_exit(&dev->irq_lock); \
284 ret = -tsleep(&(queue), PCATCH | PINTERLOCKED, \
285 "drmwtq", (timeout)); \
287 lwkt_serialize_exit(&dev->irq_lock); \
293 vm_page_unhold_pages(vm_page_t *ma, int count)
297 for (i = 0; i < count; i++)
298 vm_page_unhold(ma[i]);
301 int vm_phys_fictitious_reg_range(vm_paddr_t start, vm_paddr_t end,
302 vm_memattr_t memattr);
303 void vm_phys_fictitious_unreg_range(vm_paddr_t start, vm_paddr_t end);
304 vm_page_t vm_phys_fictitious_to_vm_page(vm_paddr_t pa);
306 #define DRM_ERROR(fmt, ...) \
307 kprintf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \
308 DRM_CURRENTPID, __func__ , ##__VA_ARGS__)
310 #define DRM_INFO(fmt, ...) kprintf("info: [" DRM_NAME "] " fmt , ##__VA_ARGS__)
312 #define DRM_DEBUG(fmt, ...) do { \
313 if ((drm_debug & DRM_DEBUGBITS_DEBUG) != 0) \
314 kprintf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \
315 __func__ , ##__VA_ARGS__); \
318 #define DRM_DEBUG_KMS(fmt, ...) do { \
319 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \
320 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\
321 __func__ , ##__VA_ARGS__); \
324 #define DRM_DEBUG_DRIVER(fmt, ...) do { \
325 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \
326 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\
327 __func__ , ##__VA_ARGS__); \
330 #define dev_err(dev, fmt, ...) \
331 device_printf((dev), "error: " fmt, ## __VA_ARGS__)
332 #define dev_warn(dev, fmt, ...) \
333 device_printf((dev), "warning: " fmt, ## __VA_ARGS__)
334 #define dev_info(dev, fmt, ...) \
335 device_printf((dev), "info: " fmt, ## __VA_ARGS__)
336 #define dev_dbg(dev, fmt, ...) do { \
337 if ((drm_debug& DRM_DEBUGBITS_KMS) != 0) { \
338 device_printf((dev), "debug: " fmt, ## __VA_ARGS__); \
342 typedef struct drm_pci_id_list
350 struct drm_msi_blacklist_entry
356 #define DRM_IOCTL_NR(n) ((n) & 0xff)
359 #define DRM_MASTER 0x2
360 #define DRM_ROOT_ONLY 0x4
361 #define DRM_CONTROL_ALLOW 0x8
362 #define DRM_UNLOCKED 0x10
364 typedef struct drm_ioctl_desc {
366 int (*func)(struct drm_device *dev, void *data,
367 struct drm_file *file_priv);
369 unsigned int cmd_drv;
373 * Creates a driver or general drm_ioctl_desc array entry for the given
374 * ioctl, for use by drm_ioctl().
376 #define DRM_IOCTL_DEF(ioctl, func, flags) \
377 [DRM_IOCTL_NR(ioctl)] = {ioctl, func, flags}
379 #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \
380 [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl}
382 typedef struct drm_magic_entry {
384 struct drm_file *priv;
385 struct drm_magic_entry *next;
388 typedef struct drm_magic_head {
389 struct drm_magic_entry *head;
390 struct drm_magic_entry *tail;
393 typedef struct drm_buf {
394 int idx; /**< Index into master buflist */
395 int total; /**< Buffer size */
396 int order; /**< log-base-2(total) */
397 int used; /**< Amount of buffer in use (for DMA) */
398 unsigned long offset; /**< Byte offset (used internally) */
399 void *address; /**< Address of buffer */
400 unsigned long bus_address; /**< Bus address of buffer */
401 struct drm_buf *next; /**< Kernel-only: used for free list */
402 __volatile__ int waiting; /**< On kernel DMA queue */
403 __volatile__ int pending; /**< On hardware DMA queue */
404 struct drm_file *file_priv; /**< Private of holding file descr */
405 int context; /**< Kernel queue for this buffer */
406 int while_locked; /**< Dispatch this buffer while locked */
414 } list; /**< Which list we're on */
416 int dev_priv_size; /**< Size of buffer private storage */
417 void *dev_private; /**< Per-buffer private storage */
420 struct drm_freelist {
421 int initialized; /* Freelist in use */
422 atomic_t count; /* Number of free buffers */
423 drm_buf_t *next; /* End pointer */
425 wait_queue_head_t waiting; /**< Processes waiting on free bufs */
426 int low_mark; /* Low water mark */
427 int high_mark; /* High water mark */
430 typedef struct drm_dma_handle {
437 typedef struct drm_buf_entry {
442 drm_dma_handle_t **seglist;
445 struct drm_freelist freelist;
448 /* Event queued up for userspace to read */
449 struct drm_pending_event {
450 struct drm_event *event;
451 struct list_head link;
452 struct drm_file *file_priv;
453 pid_t pid; /* pid of requester, no guarantee it's valid by the time
454 we deliver the event, for tracing only */
455 void (*destroy)(struct drm_pending_event *event);
458 /* initial implementaton using a linked list - todo hashtab */
459 struct drm_prime_file_private {
460 struct list_head head;
463 #endif /* DUMBBELL_WIP */
466 /** File private data */
469 struct drm_device *dev;
474 unsigned long ioctl_count;
475 struct list_head lhead;
478 /** Mapping of mm object handles to object pointers. */
479 struct idr object_idr;
480 /** Lock for synchronization of access to object_idr. */
481 struct lock table_lock;
486 struct drm_master *masterp;
488 struct list_head fbs;
490 wait_queue_head_t event_wait;
491 struct list_head event_list;
494 struct drm_prime_file_private prime;
500 struct drm_lock_data {
501 struct drm_hw_lock *hw_lock; /**< Hardware lock */
502 /** Private of lock holder's file (NULL=kernel) */
503 struct drm_file *file_priv;
504 wait_queue_head_t lock_queue; /**< Queue of blocked processes */
505 unsigned long lock_time; /**< Time of last lock in jiffies */
508 /* This structure, in the struct drm_device, is always initialized while the
510 * is open. dev->dma_lock protects the incrementing of dev->buf_use, which
511 * when set marks that no further bufs may be allocated until device teardown
512 * occurs (when the last open of the device has closed). The high/low
513 * watermarks of bufs are only touched by the X Server, and thus not
514 * concurrently accessed, so no locking is needed.
516 typedef struct drm_device_dma {
518 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */
519 int buf_count; /**< total number of buffers */
520 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */
522 int page_count; /**< number of pages */
523 unsigned long *pagelist; /**< page list */
524 unsigned long byte_count;
526 _DRM_DMA_USE_AGP = 0x01,
527 _DRM_DMA_USE_SG = 0x02,
528 _DRM_DMA_USE_FB = 0x04,
529 _DRM_DMA_USE_PCI_RO = 0x08
534 typedef struct drm_agp_mem {
536 unsigned long bound; /* address */
538 struct drm_agp_mem *prev;
539 struct drm_agp_mem *next;
542 typedef struct drm_agp_head {
544 struct agp_info agp_info;
546 drm_agp_mem_t *memory;
552 int cant_use_aperture;
553 unsigned long page_mask;
556 typedef struct drm_sg_mem {
563 * Kernel side of a mapping
565 struct drm_local_map {
566 resource_size_t offset; /**< Requested physical address (0 for SAREA)*/
567 unsigned long size; /**< Requested physical size (bytes) */
568 enum drm_map_type type; /**< Type of memory to map */
569 enum drm_map_flags flags; /**< Flags */
570 void *handle; /**< User-space: "Handle" to pass to mmap() */
571 /**< Kernel-space: kernel-virtual address */
572 int mtrr; /**< MTRR slot used */
575 typedef struct drm_local_map drm_local_map_t;
580 struct drm_map_list {
581 struct list_head head; /**< list head */
582 struct drm_hash_item hash;
583 struct drm_local_map *map; /**< mapping */
585 struct drm_master *master;
586 struct drm_mm_node *file_offset_node; /**< fake offset */
589 struct drm_vblank_info {
590 wait_queue_head_t queue; /* vblank wait queue */
591 atomic_t count; /* number of VBLANK interrupts */
592 /* (driver must alloc the right number of counters) */
593 atomic_t refcount; /* number of users of vblank interrupts */
594 u32 last; /* protected by dev->vbl_lock, used */
595 /* for wraparound handling */
596 int enabled; /* so we don't call enable more than */
597 /* once per disable */
598 int inmodeset; /* Display driver is setting mode */
601 /* location of GART table */
602 #define DRM_ATI_GART_MAIN 1
603 #define DRM_ATI_GART_FB 2
605 #define DRM_ATI_GART_PCI 1
606 #define DRM_ATI_GART_PCIE 2
607 #define DRM_ATI_GART_IGP 3
609 struct drm_ati_pcigart_info {
610 int gart_table_location;
614 dma_addr_t table_mask;
615 dma_addr_t member_mask;
616 struct drm_dma_handle *table_handle;
617 drm_local_map_t mapping;
619 struct drm_dma_handle *dmah; /* handle for ATI PCIGART table */
623 * GEM specific mm private for tracking GEM objects
626 struct drm_open_hash offset_hash; /**< User token hash table for maps */
627 struct unrhdr *idxunr;
630 struct drm_gem_object {
631 /** Reference count of this object */
632 struct kref refcount;
634 /** Handle count of this object. Each handle also holds a reference */
635 atomic_t handle_count; /* number of handles on this object */
637 /** Related drm device */
638 struct drm_device *dev;
640 /** File representing the shmem storage: filp in Linux parlance */
644 struct drm_hash_item map_list;
647 * Size of the object, in bytes. Immutable over the object's
653 * Global name for this object, starts at 1. 0 means unnamed.
654 * Access is covered by the object_name_lock in the related drm_device
659 * Memory domains. These monitor which caches contain read/write data
660 * related to the object. When transitioning from one set of domains
661 * to another, the driver is called to ensure that caches are suitably
662 * flushed and invalidated
664 uint32_t read_domains;
665 uint32_t write_domain;
668 * While validating an exec operation, the
669 * new read/write domain values are computed here.
670 * They will be transferred to the above values
671 * at the point that any cache flushing occurs
673 uint32_t pending_read_domains;
674 uint32_t pending_write_domain;
676 void *driver_private;
679 /* dma buf exported from this GEM object */
680 struct dma_buf *export_dma_buf;
682 /* dma buf attachment backing this object */
683 struct dma_buf_attachment *import_attach;
684 #endif /* DUMBBELL_WIP */
687 #include "drm_crtc.h"
689 /* per-master structure */
692 struct kref refcount; /* refcount for this master */
694 struct list_head head; /**< each minor contains a list of masters */
695 struct drm_minor *minor; /**< link back to minor we are a master for */
697 char *unique; /**< Unique identifier: e.g., busid */
698 int unique_len; /**< Length of unique field */
699 int unique_size; /**< amount allocated */
701 int blocked; /**< Blocked due to VC switch? */
703 /** \name Authentication */
705 struct drm_open_hash magiclist;
706 struct list_head magicfree;
709 struct drm_lock_data lock; /**< Information on hardware lock */
711 void *driver_priv; /**< Private structure for driver to use */
714 /* Size of ringbuffer for vblank timestamps. Just double-buffer
715 * in initial implementation.
717 #define DRM_VBLANKTIME_RBSIZE 2
719 /* Flags and return codes for get_vblank_timestamp() driver function. */
720 #define DRM_CALLED_FROM_VBLIRQ 1
721 #define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0)
722 #define DRM_VBLANKTIME_INVBL (1 << 1)
724 /* get_scanout_position() return flags */
725 #define DRM_SCANOUTPOS_VALID (1 << 0)
726 #define DRM_SCANOUTPOS_INVBL (1 << 1)
727 #define DRM_SCANOUTPOS_ACCURATE (1 << 2)
730 #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1)
733 #define upper_32_bits(n) ((u32)(((n) >> 16) >> 16))
736 int (*load)(struct drm_device *, unsigned long flags);
737 int (*use_msi)(struct drm_device *, unsigned long flags);
738 int (*firstopen)(struct drm_device *);
739 int (*open)(struct drm_device *, struct drm_file *);
740 void (*preclose)(struct drm_device *, struct drm_file *file_priv);
741 void (*postclose)(struct drm_device *, struct drm_file *);
742 void (*lastclose)(struct drm_device *);
743 int (*unload)(struct drm_device *);
744 void (*reclaim_buffers_locked)(struct drm_device *,
745 struct drm_file *file_priv);
746 int (*dma_ioctl)(struct drm_device *dev, void *data,
747 struct drm_file *file_priv);
748 void (*dma_ready)(struct drm_device *);
749 int (*dma_quiescent)(struct drm_device *);
750 int (*dma_flush_block_and_flush)(struct drm_device *, int context,
751 enum drm_lock_flags flags);
752 int (*dma_flush_unblock)(struct drm_device *, int context,
753 enum drm_lock_flags flags);
754 int (*context_ctor)(struct drm_device *dev, int context);
755 int (*context_dtor)(struct drm_device *dev, int context);
756 int (*kernel_context_switch)(struct drm_device *dev, int old,
758 int (*kernel_context_switch_unlock)(struct drm_device *dev);
759 void (*irq_preinstall)(struct drm_device *dev);
760 int (*irq_postinstall)(struct drm_device *dev);
761 void (*irq_uninstall)(struct drm_device *dev);
762 void (*irq_handler)(DRM_IRQ_ARGS);
764 u32 (*get_vblank_counter)(struct drm_device *dev, int crtc);
765 int (*enable_vblank)(struct drm_device *dev, int crtc);
766 void (*disable_vblank)(struct drm_device *dev, int crtc);
767 int (*get_scanout_position)(struct drm_device *dev, int crtc,
768 int *vpos, int *hpos);
770 int (*get_vblank_timestamp)(struct drm_device *dev, int crtc,
771 int *max_error, struct timeval *vblank_time,
774 int (*gem_init_object)(struct drm_gem_object *obj);
775 void (*gem_free_object)(struct drm_gem_object *obj);
776 int (*gem_open_object)(struct drm_gem_object *, struct drm_file *);
777 void (*gem_close_object)(struct drm_gem_object *, struct drm_file *);
779 struct cdev_pager_ops *gem_pager_ops;
781 int (*dumb_create)(struct drm_file *file_priv,
782 struct drm_device *dev, struct drm_mode_create_dumb *args);
783 int (*dumb_map_offset)(struct drm_file *file_priv,
784 struct drm_device *dev, uint32_t handle, uint64_t *offset);
785 int (*dumb_destroy)(struct drm_file *file_priv,
786 struct drm_device *dev, uint32_t handle);
788 int (*sysctl_init)(struct drm_device *dev,
789 struct sysctl_ctx_list *ctx, struct sysctl_oid *top);
790 void (*sysctl_cleanup)(struct drm_device *dev);
792 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */
795 * Called by \c drm_device_is_agp. Typically used to determine if a
796 * card is really attached to AGP or not.
798 * \param dev DRM device handle
801 * One of three values is returned depending on whether or not the
802 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
803 * (return of 1), or may or may not be AGP (return of 2).
805 int (*device_is_agp) (struct drm_device * dev);
807 drm_ioctl_desc_t *ioctls;
808 #ifdef COMPAT_FREEBSD32
809 drm_ioctl_desc_t *compat_ioctls;
810 int *compat_ioctls_nr;
818 const char *name; /* Simple driver name */
819 const char *desc; /* Longer driver name */
820 const char *date; /* Date of last major changes. */
827 * DRM minor structure. This structure represents a drm minor number.
830 int index; /**< Minor device number */
831 int type; /**< Control or render */
832 device_t kdev; /**< OS device */
833 struct drm_device *dev;
835 struct drm_master *master; /* currently active master for this node */
836 struct list_head master_list;
837 struct drm_mode_group mode_group;
840 /* mode specified on the command line */
841 struct drm_cmdline_mode {
843 bool refresh_specified;
852 enum drm_connector_force force;
856 struct drm_pending_vblank_event {
857 struct drm_pending_event base;
859 struct drm_event_vblank event;
862 /* Length for the array of resource pointers for drm_get_resource_*. */
863 #define DRM_MAX_PCI_RESOURCE 6
866 * DRM device structure. This structure represent a complete card that
867 * may contain multiple heads.
870 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */
872 uint16_t pci_device; /* PCI device id */
873 uint16_t pci_vendor; /* PCI vendor id */
874 uint16_t pci_subdevice; /* PCI subsystem device id */
875 uint16_t pci_subvendor; /* PCI subsystem vendor id */
877 char *unique; /* Unique identifier: e.g., busid */
878 int unique_len; /* Length of unique field */
879 struct cdev *devnode; /* Device number for mknod */
880 int if_version; /* Highest interface version set */
882 int flags; /* Flags to open(2) */
885 struct spinlock dma_lock; /* protects dev->dma */
886 struct lwkt_serialize irq_lock; /* protects irq condition checks */
887 struct lock dev_lock; /* protects everything else */
888 struct lock dev_struct_lock;
892 struct lock struct_mutex; /**< For others */
895 /** \name Usage Counters */
897 int open_count; /* Outstanding files open */
898 int buf_use; /* Buffers in use -- cannot alloc */
902 /** \name Performance counters */
904 unsigned long counters;
905 enum drm_stat_type types[15];
910 drm_magic_head_t magiclist[DRM_HASH_SIZE];
912 struct list_head filelist;
914 /** \name Memory management */
916 struct list_head maplist; /**< Linked list of regions */
917 int map_count; /**< Number of mappable regions */
918 struct drm_open_hash map_hash; /**< User token hash table for maps */
920 drm_local_map_t **context_sareas;
923 struct drm_lock_data lock; /* Information on hardware lock */
925 /* DMA queues (contexts) */
926 drm_device_dma_t *dma; /* Optional pointer for DMA support */
928 /* Context support */
929 int irq; /* Interrupt used by board */
930 int msi_enabled; /* MSI enabled */
931 int irqrid; /* Interrupt used by board */
932 struct resource *irqr; /* Resource for interrupt used by board */
933 void *irqh; /* Handle from bus_setup_intr */
935 /* Storage of resource pointers for drm_get_resource_* */
936 struct resource *pcir[DRM_MAX_PCI_RESOURCE];
937 int pcirid[DRM_MAX_PCI_RESOURCE];
944 /** \name Context support */
946 int irq_enabled; /**< True if irq handler is enabled */
947 __volatile__ long context_flag; /**< Context swapping flag */
948 int last_context; /**< Last current context */
953 struct sigio *buf_sigio; /* Processes waiting for SIGIO */
956 struct drm_sysctl_info *sysctl;
961 struct device *dev; /**< Device structure */
963 drm_sg_mem_t *sg; /* Scatter gather memory */
964 unsigned long *ctx_bitmap;
970 * At load time, disabling the vblank interrupt won't be allowed since
971 * old clients may not call the modeset ioctl and therefore misbehave.
972 * Once the modeset ioctl *has* been called though, we can safely
973 * disable them when unused.
975 int vblank_disable_allowed;
977 wait_queue_head_t *vbl_queue; /**< VBLANK wait queue */
978 atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */
979 struct timeval *_vblank_time; /**< timestamp of current vblank_count (drivers must alloc right number of fields) */
980 struct lock vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */
981 struct lock vbl_lock;
982 atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */
983 u32 *last_vblank; /* protected by dev->vbl_lock, used */
984 /* for wraparound handling */
985 int *vblank_enabled; /* so we don't call enable more than
987 int *vblank_inmodeset; /* Display driver is setting mode */
988 u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */
989 struct timer_list vblank_disable_timer;
991 u32 max_vblank_count; /**< size of vblank counter register */
996 struct list_head vblank_event_list;
997 struct lock event_lock;
999 struct drm_driver *driver;
1000 struct drm_local_map *agp_buffer_map;
1001 unsigned int agp_buffer_token;
1002 struct drm_minor *control; /**< Control node for card */
1003 struct drm_minor *primary; /**< render type primary screen head */
1005 struct drm_mode_config mode_config; /**< Current mode config */
1007 /** \name GEM information */
1009 struct lock object_name_lock;
1010 struct idr object_name_idr;
1014 void *sysctl_private;
1015 char busid_str[128];
1018 int switch_power_state;
1021 #define DRM_SWITCH_POWER_ON 0
1022 #define DRM_SWITCH_POWER_OFF 1
1023 #define DRM_SWITCH_POWER_CHANGING 2
1025 static __inline__ int drm_core_check_feature(struct drm_device *dev,
1028 return ((dev->driver->driver_features & feature) ? 1 : 0);
1032 static inline int drm_core_has_AGP(struct drm_device *dev)
1034 return drm_core_check_feature(dev, DRIVER_USE_AGP);
1037 #define drm_core_has_AGP(dev) (0)
1047 DMI_PRODUCT_VERSION,
1054 DMI_BOARD_ASSET_TAG,
1057 DMI_CHASSIS_VERSION,
1059 DMI_CHASSIS_ASSET_TAG,
1063 struct dmi_strmatch {
1068 struct dmi_system_id {
1069 int (*callback)(const struct dmi_system_id *);
1071 struct dmi_strmatch matches[4];
1073 #define DMI_MATCH(a, b) {(a), (b)}
1074 bool dmi_check_system(const struct dmi_system_id *);
1076 extern int drm_notyet_flag;
1077 extern int drm_debug;
1079 extern unsigned int drm_vblank_offdelay;
1080 extern unsigned int drm_timestamp_precision;
1081 extern unsigned int drm_timestamp_monotonic;
1083 /* Device setup support (drm_drv.c) */
1084 int drm_probe(device_t kdev, drm_pci_id_list_t *idlist);
1085 int drm_attach(device_t kdev, drm_pci_id_list_t *idlist);
1086 int drm_create_cdevs(device_t kdev);
1087 int drm_detach(device_t kdev);
1088 d_ioctl_t drm_ioctl;
1090 d_close_t drm_close;
1092 d_kqfilter_t drm_kqfilter;
1094 d_mmap_single_t drm_mmap_single;
1095 extern drm_local_map_t *drm_getsarea(struct drm_device *dev);
1097 void drm_cdevpriv_dtor(void *cd);
1099 void drm_event_wakeup(struct drm_pending_event *e);
1101 int drm_add_busid_modesetting(struct drm_device *dev,
1102 struct sysctl_ctx_list *ctx, struct sysctl_oid *top);
1104 /* File operations helpers (drm_fops.c) */
1105 extern int drm_open_helper(struct cdev *kdev, int flags, int fmt,
1107 struct drm_device *dev,
1109 extern struct drm_file *drm_find_file_by_proc(struct drm_device *dev,
1113 extern int drm_gem_prime_handle_to_fd(struct drm_device *dev,
1114 struct drm_file *file_priv, uint32_t handle, uint32_t flags,
1116 extern int drm_gem_prime_fd_to_handle(struct drm_device *dev,
1117 struct drm_file *file_priv, int prime_fd, uint32_t *handle);
1119 extern int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data,
1120 struct drm_file *file_priv);
1121 extern int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data,
1122 struct drm_file *file_priv);
1129 extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, vm_page_t *pages,
1130 dma_addr_t *addrs, int max_pages);
1131 #endif /* DUMBBELL_WIP */
1132 extern struct sg_table *drm_prime_pages_to_sg(vm_page_t *pages, int nr_pages);
1133 extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg);
1136 void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv);
1137 void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv);
1138 int drm_prime_add_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t handle);
1139 int drm_prime_lookup_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t *handle);
1140 void drm_prime_remove_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf);
1142 int drm_prime_add_dma_buf(struct drm_device *dev, struct drm_gem_object *obj);
1143 int drm_prime_lookup_obj(struct drm_device *dev, struct dma_buf *buf,
1144 struct drm_gem_object **obj);
1145 #endif /* DUMBBELL_WIP */
1147 /* Memory management support (drm_memory.c) */
1148 void drm_mem_init(void);
1149 void drm_mem_uninit(void);
1150 void *drm_ioremap_wc(struct drm_device *dev, drm_local_map_t *map);
1151 void *drm_ioremap(struct drm_device *dev, drm_local_map_t *map);
1152 void drm_ioremapfree(drm_local_map_t *map);
1153 int drm_mtrr_add(unsigned long offset, size_t size, int flags);
1154 int drm_mtrr_del(int handle, unsigned long offset, size_t size, int flags);
1156 int drm_ctxbitmap_init(struct drm_device *dev);
1157 void drm_ctxbitmap_cleanup(struct drm_device *dev);
1158 void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
1159 int drm_ctxbitmap_next(struct drm_device *dev);
1161 /* Locking IOCTL support (drm_lock.c) */
1162 int drm_lock_take(struct drm_lock_data *lock_data,
1163 unsigned int context);
1164 int drm_lock_transfer(struct drm_lock_data *lock_data,
1165 unsigned int context);
1166 int drm_lock_free(struct drm_lock_data *lock_data,
1167 unsigned int context);
1170 * These are exported to drivers so that they can implement fencing using
1171 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
1174 unsigned long drm_get_resource_start(struct drm_device *dev,
1175 unsigned int resource);
1176 unsigned long drm_get_resource_len(struct drm_device *dev,
1177 unsigned int resource);
1178 void drm_rmmap(struct drm_device *dev, drm_local_map_t *map);
1179 int drm_order(unsigned long size);
1180 int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc *request);
1181 int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc *request);
1182 extern int drm_addmap(struct drm_device *dev, resource_size_t offset,
1183 unsigned int size, enum drm_map_type type,
1184 enum drm_map_flags flags, struct drm_local_map **map_ptr);
1186 /* DMA support (drm_dma.c) */
1187 int drm_dma_setup(struct drm_device *dev);
1188 void drm_dma_takedown(struct drm_device *dev);
1189 void drm_free_buffer(struct drm_device *dev, drm_buf_t *buf);
1190 void drm_reclaim_buffers(struct drm_device *dev, struct drm_file *file_priv);
1191 #define drm_core_reclaim_buffers drm_reclaim_buffers
1193 /* IRQ support (drm_irq.h) */
1194 int drm_irq_install(struct drm_device *dev);
1195 int drm_irq_uninstall(struct drm_device *dev);
1196 void drm_driver_irq_preinstall(struct drm_device *dev);
1197 void drm_driver_irq_postinstall(struct drm_device *dev);
1198 void drm_driver_irq_uninstall(struct drm_device *dev);
1200 void drm_vblank_pre_modeset(struct drm_device *dev, int crtc);
1201 void drm_vblank_post_modeset(struct drm_device *dev, int crtc);
1202 int drm_modeset_ctl(struct drm_device *dev, void *data,
1203 struct drm_file *file_priv);
1205 extern int drm_vblank_init(struct drm_device *dev, int num_crtcs);
1206 extern int drm_wait_vblank(struct drm_device *dev, void *data,
1207 struct drm_file *filp);
1208 extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq);
1209 extern u32 drm_vblank_count(struct drm_device *dev, int crtc);
1210 extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc,
1211 struct timeval *vblanktime);
1212 extern void drm_send_vblank_event(struct drm_device *dev, int crtc,
1213 struct drm_pending_vblank_event *e);
1214 extern bool drm_handle_vblank(struct drm_device *dev, int crtc);
1215 void drm_handle_vblank_events(struct drm_device *dev, int crtc);
1216 extern int drm_vblank_get(struct drm_device *dev, int crtc);
1217 extern void drm_vblank_put(struct drm_device *dev, int crtc);
1218 extern void drm_vblank_off(struct drm_device *dev, int crtc);
1219 extern void drm_vblank_cleanup(struct drm_device *dev);
1220 extern u32 drm_get_last_vbltimestamp(struct drm_device *dev, int crtc,
1221 struct timeval *tvblank, unsigned flags);
1222 extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev,
1223 int crtc, int *max_error,
1224 struct timeval *vblank_time,
1226 struct drm_crtc *refcrtc);
1227 extern void drm_calc_timestamping_constants(struct drm_crtc *crtc);
1229 /* AGP/PCI Express/GART support (drm_agpsupport.c) */
1230 int drm_device_is_agp(struct drm_device *dev);
1231 int drm_device_is_pcie(struct drm_device *dev);
1232 drm_agp_head_t *drm_agp_init(void);
1233 int drm_agp_acquire(struct drm_device *dev);
1234 int drm_agp_release(struct drm_device *dev);
1235 int drm_agp_info(struct drm_device * dev, struct drm_agp_info *info);
1236 int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode);
1237 void *drm_agp_allocate_memory(size_t pages, u32 type);
1238 int drm_agp_free_memory(void *handle);
1239 int drm_agp_bind_memory(void *handle, off_t start);
1240 int drm_agp_unbind_memory(void *handle);
1241 int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request);
1242 int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request);
1243 int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
1244 int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request);
1246 /* Scatter Gather Support (drm_scatter.c) */
1247 void drm_sg_cleanup(drm_sg_mem_t *entry);
1248 int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request);
1250 /* sysctl support (drm_sysctl.h) */
1251 extern int drm_sysctl_init(struct drm_device *dev);
1252 extern int drm_sysctl_cleanup(struct drm_device *dev);
1254 /* ATI PCIGART support (ati_pcigart.c) */
1255 int drm_ati_pcigart_init(struct drm_device *dev,
1256 struct drm_ati_pcigart_info *gart_info);
1257 int drm_ati_pcigart_cleanup(struct drm_device *dev,
1258 struct drm_ati_pcigart_info *gart_info);
1260 /* Cache management (drm_memory.c) */
1261 void drm_clflush_pages(vm_page_t *pages, unsigned long num_pages);
1263 /* Locking IOCTL support (drm_drv.c) */
1264 int drm_lock(struct drm_device *dev, void *data,
1265 struct drm_file *file_priv);
1266 int drm_unlock(struct drm_device *dev, void *data,
1267 struct drm_file *file_priv);
1268 int drm_version(struct drm_device *dev, void *data,
1269 struct drm_file *file_priv);
1270 int drm_setversion(struct drm_device *dev, void *data,
1271 struct drm_file *file_priv);
1273 /* Misc. IOCTL support (drm_ioctl.c) */
1274 int drm_irq_by_busid(struct drm_device *dev, void *data,
1275 struct drm_file *file_priv);
1276 int drm_getunique(struct drm_device *dev, void *data,
1277 struct drm_file *file_priv);
1278 int drm_setunique(struct drm_device *dev, void *data,
1279 struct drm_file *file_priv);
1280 int drm_getmap(struct drm_device *dev, void *data,
1281 struct drm_file *file_priv);
1282 int drm_getclient(struct drm_device *dev, void *data,
1283 struct drm_file *file_priv);
1284 int drm_getstats(struct drm_device *dev, void *data,
1285 struct drm_file *file_priv);
1286 int drm_getcap(struct drm_device *dev, void *data,
1287 struct drm_file *file_priv);
1288 int drm_noop(struct drm_device *dev, void *data,
1289 struct drm_file *file_priv);
1291 /* Context IOCTL support (drm_context.c) */
1292 int drm_resctx(struct drm_device *dev, void *data,
1293 struct drm_file *file_priv);
1294 int drm_addctx(struct drm_device *dev, void *data,
1295 struct drm_file *file_priv);
1296 int drm_modctx(struct drm_device *dev, void *data,
1297 struct drm_file *file_priv);
1298 int drm_getctx(struct drm_device *dev, void *data,
1299 struct drm_file *file_priv);
1300 int drm_switchctx(struct drm_device *dev, void *data,
1301 struct drm_file *file_priv);
1302 int drm_newctx(struct drm_device *dev, void *data,
1303 struct drm_file *file_priv);
1304 int drm_rmctx(struct drm_device *dev, void *data,
1305 struct drm_file *file_priv);
1306 int drm_setsareactx(struct drm_device *dev, void *data,
1307 struct drm_file *file_priv);
1308 int drm_getsareactx(struct drm_device *dev, void *data,
1309 struct drm_file *file_priv);
1311 /* Authentication IOCTL support (drm_auth.c) */
1312 int drm_getmagic(struct drm_device *dev, void *data,
1313 struct drm_file *file_priv);
1314 int drm_authmagic(struct drm_device *dev, void *data,
1315 struct drm_file *file_priv);
1317 /* Buffer management support (drm_bufs.c) */
1318 int drm_addmap_ioctl(struct drm_device *dev, void *data,
1319 struct drm_file *file_priv);
1320 int drm_rmmap_ioctl(struct drm_device *dev, void *data,
1321 struct drm_file *file_priv);
1322 int drm_addbufs(struct drm_device *dev, void *data,
1323 struct drm_file *file_priv);
1324 int drm_infobufs(struct drm_device *dev, void *data,
1325 struct drm_file *file_priv);
1326 int drm_markbufs(struct drm_device *dev, void *data,
1327 struct drm_file *file_priv);
1328 int drm_freebufs(struct drm_device *dev, void *data,
1329 struct drm_file *file_priv);
1330 int drm_mapbufs(struct drm_device *dev, void *data,
1331 struct drm_file *file_priv);
1333 /* DMA support (drm_dma.c) */
1334 int drm_dma(struct drm_device *dev, void *data, struct drm_file *file_priv);
1336 /* IRQ support (drm_irq.c) */
1337 int drm_control(struct drm_device *dev, void *data,
1338 struct drm_file *file_priv);
1340 /* AGP/GART support (drm_agpsupport.c) */
1341 int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
1342 struct drm_file *file_priv);
1343 int drm_agp_release_ioctl(struct drm_device *dev, void *data,
1344 struct drm_file *file_priv);
1345 int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
1346 struct drm_file *file_priv);
1347 int drm_agp_info_ioctl(struct drm_device *dev, void *data,
1348 struct drm_file *file_priv);
1349 int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
1350 struct drm_file *file_priv);
1351 int drm_agp_free_ioctl(struct drm_device *dev, void *data,
1352 struct drm_file *file_priv);
1353 int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
1354 struct drm_file *file_priv);
1355 int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
1356 struct drm_file *file_priv);
1358 /* Stub support (drm_stub.h) */
1359 extern int drm_setmaster_ioctl(struct drm_device *dev, void *data,
1360 struct drm_file *file_priv);
1361 extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
1362 struct drm_file *file_priv);
1364 /* Scatter Gather Support (drm_scatter.c) */
1365 int drm_sg_alloc_ioctl(struct drm_device *dev, void *data,
1366 struct drm_file *file_priv);
1367 int drm_sg_free(struct drm_device *dev, void *data,
1368 struct drm_file *file_priv);
1370 /* consistent PCI memory functions (drm_pci.c) */
1371 drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
1372 size_t align, dma_addr_t maxaddr);
1373 void drm_pci_free(struct drm_device *dev, drm_dma_handle_t *dmah);
1375 /* sysfs support (drm_sysfs.c) */
1376 extern char *drm_get_connector_status_name(enum drm_connector_status status);
1378 /* Graphics Execution Manager library functions (drm_gem.c) */
1379 int drm_gem_init(struct drm_device *dev);
1380 void drm_gem_destroy(struct drm_device *dev);
1381 void drm_gem_object_release(struct drm_gem_object *obj);
1382 void drm_gem_object_free(struct kref *kref);
1384 int drm_gem_close_ioctl(struct drm_device *dev, void *data,
1385 struct drm_file *file_priv);
1386 int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
1387 struct drm_file *file_priv);
1388 int drm_gem_open_ioctl(struct drm_device *dev, void *data,
1389 struct drm_file *file_priv);
1390 void drm_gem_object_handle_free(struct drm_gem_object *obj);
1392 #include <drm/drm_global.h>
1395 drm_gem_object_reference(struct drm_gem_object *obj)
1397 kref_get(&obj->refcount);
1401 drm_gem_object_unreference(struct drm_gem_object *obj)
1404 kref_put(&obj->refcount, drm_gem_object_free);
1408 drm_gem_object_unreference_unlocked(struct drm_gem_object *obj)
1411 struct drm_device *dev = obj->dev;
1413 kref_put(&obj->refcount, drm_gem_object_free);
1418 int drm_gem_handle_create(struct drm_file *file_priv,
1419 struct drm_gem_object *obj,
1421 int drm_gem_handle_delete(struct drm_file *filp, u32 handle);
1424 drm_gem_object_handle_reference(struct drm_gem_object *obj)
1426 drm_gem_object_reference(obj);
1427 atomic_inc(&obj->handle_count);
1431 drm_gem_object_handle_unreference(struct drm_gem_object *obj)
1436 if (atomic_read(&obj->handle_count) == 0)
1439 * Must bump handle count first as this may be the last
1440 * ref, in which case the object would disappear before we
1441 * checked for a name
1443 if (atomic_dec_and_test(&obj->handle_count))
1444 drm_gem_object_handle_free(obj);
1445 drm_gem_object_unreference(obj);
1449 drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj)
1454 if (atomic_read(&obj->handle_count) == 0)
1458 * Must bump handle count first as this may be the last
1459 * ref, in which case the object would disappear before we
1460 * checked for a name
1463 if (atomic_dec_and_test(&obj->handle_count))
1464 drm_gem_object_handle_free(obj);
1465 drm_gem_object_unreference_unlocked(obj);
1468 int drm_gem_object_init(struct drm_device *dev, struct drm_gem_object *obj,
1470 int drm_gem_private_object_init(struct drm_device *dev,
1471 struct drm_gem_object *obj, size_t size);
1472 struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev,
1474 struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev,
1475 struct drm_file *file_priv, uint32_t handle);
1477 void drm_gem_open(struct drm_device *dev, struct drm_file *file_priv);
1478 void drm_gem_release(struct drm_device *dev, struct drm_file *file_priv);
1480 int drm_gem_create_mmap_offset(struct drm_gem_object *obj);
1481 void drm_gem_free_mmap_offset(struct drm_gem_object *obj);
1482 int drm_gem_mmap_single(struct drm_device *dev, vm_ooffset_t *offset,
1483 vm_size_t size, struct vm_object **obj_res, int nprot);
1484 void drm_gem_pager_dtr(void *obj);
1486 struct ttm_bo_device;
1487 int ttm_bo_mmap_single(struct ttm_bo_device *bdev, vm_ooffset_t *offset,
1488 vm_size_t size, struct vm_object **obj_res, int nprot);
1489 struct ttm_buffer_object;
1490 void ttm_bo_release_mmap(struct ttm_buffer_object *bo);
1492 void drm_device_lock_mtx(struct drm_device *dev);
1493 void drm_device_unlock_mtx(struct drm_device *dev);
1494 int drm_device_sleep_mtx(struct drm_device *dev, void *chan, int flags,
1495 const char *msg, int timeout);
1496 void drm_device_assert_mtx_locked(struct drm_device *dev);
1497 void drm_device_assert_mtx_unlocked(struct drm_device *dev);
1499 void drm_device_lock_struct(struct drm_device *dev);
1500 void drm_device_unlock_struct(struct drm_device *dev);
1501 int drm_device_sleep_struct(struct drm_device *dev, void *chan, int flags,
1502 const char *msg, int timeout);
1503 void drm_device_assert_struct_locked(struct drm_device *dev);
1504 void drm_device_assert_struct_unlocked(struct drm_device *dev);
1506 void drm_compat_locking_init(struct drm_device *dev);
1507 void drm_sleep_locking_init(struct drm_device *dev);
1510 bool drm_mode_parse_command_line_for_connector(const char *mode_option,
1511 struct drm_connector *connector, struct drm_cmdline_mode *mode);
1512 struct drm_display_mode *drm_mode_create_from_cmdline_mode(
1513 struct drm_device *dev, struct drm_cmdline_mode *cmd);
1515 /* Inline replacements for drm_alloc and friends */
1516 static __inline__ void *
1517 drm_alloc(size_t size, struct malloc_type *area)
1519 return kmalloc(size, area, M_NOWAIT);
1522 static __inline__ void *
1523 drm_calloc(size_t nmemb, size_t size, struct malloc_type *area)
1525 return kmalloc(size * nmemb, area, M_NOWAIT | M_ZERO);
1528 static __inline__ void *
1529 drm_realloc(void *oldpt, size_t oldsize, size_t size,
1530 struct malloc_type *area)
1533 res = krealloc(oldpt, size, area, M_NOWAIT);
1534 if (res == NULL && oldpt != NULL)
1539 static __inline__ void
1540 drm_free(void *pt, struct malloc_type *area)
1546 /* Inline replacements for DRM_IOREMAP macros */
1547 static __inline__ void
1548 drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev)
1550 map->handle = drm_ioremap_wc(dev, map);
1552 static __inline__ void
1553 drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev)
1555 map->handle = drm_ioremap(dev, map);
1557 static __inline__ void
1558 drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev)
1560 if ( map->handle && map->size )
1561 drm_ioremapfree(map);
1564 static __inline__ struct drm_local_map *
1565 drm_core_findmap(struct drm_device *dev, unsigned long offset)
1567 struct drm_map_list *_entry;
1569 list_for_each_entry(_entry, &dev->maplist, head) {
1570 if (offset == (unsigned long)_entry->map->handle)
1576 static __inline__ void drm_core_dropmap(struct drm_map *map)
1580 #include <drm/drm_mem_util.h>
1582 /* FreeBSD compatibility macros */
1583 #define VM_OBJECT_WLOCK(object) VM_OBJECT_LOCK(object)
1584 #define VM_OBJECT_WUNLOCK(object) VM_OBJECT_UNLOCK(object)
1586 #define DRM_PCIE_SPEED_25 1
1587 #define DRM_PCIE_SPEED_50 2
1588 #define DRM_PCIE_SPEED_80 4
1590 extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask);
1592 #define drm_can_sleep() (DRM_HZ & 1)
1594 #endif /* __KERNEL__ */
1595 #endif /* _DRM_P_H_ */