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/moduleparam.h>
106 #include <linux/mutex.h>
107 #include <linux/timer.h>
109 #include <linux/types.h>
110 #include <linux/wait.h>
112 #include <asm/uaccess.h>
117 #include <drm/drm_os_linux.h>
118 #include <drm/drm_hashtab.h>
119 #include <drm/drm_mm.h>
121 #define DRM_UT_CORE 0x01
122 #define DRM_UT_DRIVER 0x02
123 #define DRM_UT_KMS 0x04
124 #define DRM_UT_PRIME 0x08
129 #define DRM_DEBUG_DEFAULT_ON 1
130 #endif /* DRM_DEBUG */
132 #define DRM_DEBUGBITS_DEBUG 0x1
133 #define DRM_DEBUGBITS_KMS 0x2
134 #define DRM_DEBUGBITS_FAILED_IOCTL 0x4
139 /***********************************************************************/
140 /** \name DRM template customization defaults */
143 /* driver capabilities and requirements mask */
144 #define DRIVER_USE_AGP 0x1
145 #define DRIVER_REQUIRE_AGP 0x2
146 #define DRIVER_USE_MTRR 0x4
147 #define DRIVER_PCI_DMA 0x8
148 #define DRIVER_SG 0x10
149 #define DRIVER_HAVE_DMA 0x20
150 #define DRIVER_HAVE_IRQ 0x40
151 #define DRIVER_IRQ_SHARED 0x80
152 #define DRIVER_IRQ_VBL 0x100
153 #define DRIVER_DMA_QUEUE 0x200
154 #define DRIVER_FB_DMA 0x400
155 #define DRIVER_IRQ_VBL2 0x800
156 #define DRIVER_GEM 0x1000
157 #define DRIVER_MODESET 0x2000
158 #define DRIVER_PRIME 0x4000
159 #define DRIVER_LOCKLESS_IRQ 0x8000
161 /***********************************************************************/
162 /** \name Begin the DRM... */
165 #define DRM_HASH_SIZE 16 /* Size of key hash table */
166 #define DRM_KERNEL_CONTEXT 0 /* Change drm_resctx if changed */
167 #define DRM_RESERVED_CONTEXTS 1 /* Change drm_resctx if changed */
169 #define DRM_GEM_MAPPING_MASK (3ULL << 62)
170 #define DRM_GEM_MAPPING_KEY (2ULL << 62) /* Non-canonical address form */
171 #define DRM_GEM_MAX_IDX 0x3fffff
172 #define DRM_GEM_MAPPING_IDX(o) (((o) >> 40) & DRM_GEM_MAX_IDX)
173 #define DRM_GEM_MAPPING_OFF(i) (((uint64_t)(i)) << 40)
174 #define DRM_GEM_MAPPING_MAPOFF(o) \
175 ((o) & ~(DRM_GEM_MAPPING_OFF(DRM_GEM_MAX_IDX) | DRM_GEM_MAPPING_KEY))
177 MALLOC_DECLARE(M_DRM);
179 SYSCTL_DECL(_hw_drm);
181 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
183 /***********************************************************************/
184 /** \name Internal types and structures */
187 #define DRM_ARRAY_SIZE(x) NELEM(x)
188 #define DRM_MIN(a,b) ((a)<(b)?(a):(b))
189 #define DRM_MAX(a,b) ((a)>(b)?(a):(b))
191 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
193 #define __OS_HAS_AGP 1
195 #define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP)
196 #define DRM_DEV_UID 0
197 #define DRM_DEV_GID 0
199 #define DRM_WAKEUP(w) wakeup((void *)w)
200 #define DRM_WAKEUP_INT(w) wakeup(w)
201 #define DRM_INIT_WAITQUEUE(queue) do {(void)(queue);} while (0)
203 #define DRM_CURPROC curthread
204 #define DRM_STRUCTPROC struct thread
205 #define DRM_CURRENTPID (curproc != NULL ? curproc->p_pid : -1)
206 #define DRM_LOCK(dev) lockmgr(&(dev)->dev_struct_lock, LK_EXCLUSIVE)
207 #define DRM_UNLOCK(dev) lockmgr(&(dev)->dev_struct_lock, LK_RELEASE)
208 #define DRM_LOCK_SLEEP(dev, chan, flags, msg, timeout) \
209 (lksleep((chan), &(dev)->dev_struct_lock, (flags), (msg), (timeout)))
210 #if defined(INVARIANTS)
211 #define DRM_LOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->dev_struct_lock, curthread) != 0);
212 #define DRM_UNLOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->dev_struct_lock, curthread) == 0);
214 #define DRM_LOCK_ASSERT(d)
215 #define DRM_UNLOCK_ASSERT(d)
218 #define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS)
220 #define DRM_IRQ_ARGS void *arg
221 typedef void irqreturn_t;
222 #define IRQ_HANDLED /* nothing */
223 #define IRQ_NONE /* nothing */
230 #define DRM_AGP_MEM struct agp_memory_info
232 #define drm_get_device_from_kdev(_kdev) (_kdev->si_drv1)
234 /* DRM_SUSER returns true if the user is superuser */
235 #define DRM_SUSER(p) (priv_check(p, PRIV_DRIVER) == 0)
236 #define DRM_AGP_FIND_DEVICE() agp_find_device()
237 #define DRM_MTRR_WC MDF_WRITECOMBINE
239 /* DRM_READMEMORYBARRIER() prevents reordering of reads.
240 * DRM_WRITEMEMORYBARRIER() prevents reordering of writes.
241 * DRM_MEMORYBARRIER() prevents reordering of reads and writes.
243 #define DRM_READMEMORYBARRIER() cpu_lfence()
244 #define DRM_WRITEMEMORYBARRIER() cpu_sfence()
245 #define DRM_MEMORYBARRIER() cpu_mfence()
247 #define DRM_VERIFYAREA_READ( uaddr, size ) \
248 (!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ))
250 #define DRM_COPY_TO_USER(user, kern, size) \
251 copyout(kern, user, size)
252 #define DRM_COPY_FROM_USER(kern, user, size) \
253 copyin(user, kern, size)
254 #define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \
255 copyin(arg2, arg1, arg3)
256 #define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \
257 copyout(arg2, arg1, arg3)
258 #define DRM_GET_USER_UNCHECKED(val, uaddr) \
259 ((val) = fuword32(uaddr), 0)
261 #define drm_can_sleep() (DRM_HZ & 1)
263 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
264 (_map) = (_dev)->context_sareas[_ctx]; \
267 #define LOCK_TEST_WITH_RETURN(dev, file_priv) \
269 if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) || \
270 dev->lock.file_priv != file_priv) { \
271 DRM_ERROR("%s called without lock held\n", \
277 /* Returns -errno to shared code */
278 #define DRM_WAIT_ON( ret, queue, timeout, condition ) \
279 for ( ret = 0 ; !ret && !(condition) ; ) { \
281 lwkt_serialize_enter(&dev->irq_lock); \
282 if (!(condition)) { \
283 tsleep_interlock(&(queue), PCATCH); \
284 lwkt_serialize_exit(&dev->irq_lock); \
285 ret = -tsleep(&(queue), PCATCH | PINTERLOCKED, \
286 "drmwtq", (timeout)); \
288 lwkt_serialize_exit(&dev->irq_lock); \
294 vm_page_unhold_pages(vm_page_t *ma, int count)
298 for (i = 0; i < count; i++)
299 vm_page_unhold(ma[i]);
302 int vm_phys_fictitious_reg_range(vm_paddr_t start, vm_paddr_t end,
303 vm_memattr_t memattr);
304 void vm_phys_fictitious_unreg_range(vm_paddr_t start, vm_paddr_t end);
305 vm_page_t vm_phys_fictitious_to_vm_page(vm_paddr_t pa);
307 #define DRM_ERROR(fmt, ...) \
308 kprintf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \
309 DRM_CURRENTPID, __func__ , ##__VA_ARGS__)
311 #define DRM_INFO(fmt, ...) kprintf("info: [" DRM_NAME "] " fmt , ##__VA_ARGS__)
313 #define DRM_DEBUG(fmt, ...) do { \
314 if ((drm_debug & DRM_DEBUGBITS_DEBUG) != 0) \
315 kprintf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \
316 __func__ , ##__VA_ARGS__); \
319 #define DRM_DEBUG_KMS(fmt, ...) do { \
320 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \
321 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\
322 __func__ , ##__VA_ARGS__); \
325 #define DRM_DEBUG_DRIVER(fmt, ...) do { \
326 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \
327 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\
328 __func__ , ##__VA_ARGS__); \
331 #define dev_dbg(dev, fmt, ...) do { \
332 if ((drm_debug& DRM_DEBUGBITS_KMS) != 0) { \
333 device_printf((dev), "debug: " fmt, ## __VA_ARGS__); \
337 typedef struct drm_pci_id_list
345 struct drm_msi_blacklist_entry
351 #define DRM_IOCTL_NR(n) ((n) & 0xff)
354 #define DRM_MASTER 0x2
355 #define DRM_ROOT_ONLY 0x4
356 #define DRM_CONTROL_ALLOW 0x8
357 #define DRM_UNLOCKED 0x10
359 typedef struct drm_ioctl_desc {
361 int (*func)(struct drm_device *dev, void *data,
362 struct drm_file *file_priv);
364 unsigned int cmd_drv;
368 * Creates a driver or general drm_ioctl_desc array entry for the given
369 * ioctl, for use by drm_ioctl().
371 #define DRM_IOCTL_DEF(ioctl, func, flags) \
372 [DRM_IOCTL_NR(ioctl)] = {ioctl, func, flags}
374 #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \
375 [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl}
377 typedef struct drm_magic_entry {
379 struct drm_file *priv;
380 struct drm_magic_entry *next;
383 typedef struct drm_magic_head {
384 struct drm_magic_entry *head;
385 struct drm_magic_entry *tail;
388 typedef struct drm_buf {
389 int idx; /**< Index into master buflist */
390 int total; /**< Buffer size */
391 int order; /**< log-base-2(total) */
392 int used; /**< Amount of buffer in use (for DMA) */
393 unsigned long offset; /**< Byte offset (used internally) */
394 void *address; /**< Address of buffer */
395 unsigned long bus_address; /**< Bus address of buffer */
396 struct drm_buf *next; /**< Kernel-only: used for free list */
397 __volatile__ int waiting; /**< On kernel DMA queue */
398 __volatile__ int pending; /**< On hardware DMA queue */
399 struct drm_file *file_priv; /**< Private of holding file descr */
400 int context; /**< Kernel queue for this buffer */
401 int while_locked; /**< Dispatch this buffer while locked */
409 } list; /**< Which list we're on */
411 int dev_priv_size; /**< Size of buffer private storage */
412 void *dev_private; /**< Per-buffer private storage */
415 struct drm_freelist {
416 int initialized; /* Freelist in use */
417 atomic_t count; /* Number of free buffers */
418 drm_buf_t *next; /* End pointer */
420 wait_queue_head_t waiting; /**< Processes waiting on free bufs */
421 int low_mark; /* Low water mark */
422 int high_mark; /* High water mark */
425 typedef struct drm_dma_handle {
432 typedef struct drm_buf_entry {
437 drm_dma_handle_t **seglist;
440 struct drm_freelist freelist;
443 /* Event queued up for userspace to read */
444 struct drm_pending_event {
445 struct drm_event *event;
446 struct list_head link;
447 struct drm_file *file_priv;
448 pid_t pid; /* pid of requester, no guarantee it's valid by the time
449 we deliver the event, for tracing only */
450 void (*destroy)(struct drm_pending_event *event);
453 /* initial implementaton using a linked list - todo hashtab */
454 struct drm_prime_file_private {
455 struct list_head head;
458 #endif /* DUMBBELL_WIP */
461 /** File private data */
464 struct drm_device *dev;
469 unsigned long ioctl_count;
470 struct list_head lhead;
473 /** Mapping of mm object handles to object pointers. */
474 struct idr object_idr;
475 /** Lock for synchronization of access to object_idr. */
476 struct lock table_lock;
481 struct drm_master *masterp;
483 struct list_head fbs;
485 wait_queue_head_t event_wait;
486 struct list_head event_list;
489 struct drm_prime_file_private prime;
495 struct drm_lock_data {
496 struct drm_hw_lock *hw_lock; /**< Hardware lock */
497 /** Private of lock holder's file (NULL=kernel) */
498 struct drm_file *file_priv;
499 wait_queue_head_t lock_queue; /**< Queue of blocked processes */
500 unsigned long lock_time; /**< Time of last lock in jiffies */
503 /* This structure, in the struct drm_device, is always initialized while the
505 * is open. dev->dma_lock protects the incrementing of dev->buf_use, which
506 * when set marks that no further bufs may be allocated until device teardown
507 * occurs (when the last open of the device has closed). The high/low
508 * watermarks of bufs are only touched by the X Server, and thus not
509 * concurrently accessed, so no locking is needed.
511 typedef struct drm_device_dma {
513 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */
514 int buf_count; /**< total number of buffers */
515 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */
517 int page_count; /**< number of pages */
518 unsigned long *pagelist; /**< page list */
519 unsigned long byte_count;
521 _DRM_DMA_USE_AGP = 0x01,
522 _DRM_DMA_USE_SG = 0x02,
523 _DRM_DMA_USE_FB = 0x04,
524 _DRM_DMA_USE_PCI_RO = 0x08
529 typedef struct drm_agp_mem {
531 unsigned long bound; /* address */
533 struct drm_agp_mem *prev;
534 struct drm_agp_mem *next;
537 typedef struct drm_agp_head {
539 struct agp_info agp_info;
541 drm_agp_mem_t *memory;
547 int cant_use_aperture;
548 unsigned long page_mask;
551 typedef struct drm_sg_mem {
558 * Kernel side of a mapping
560 struct drm_local_map {
561 resource_size_t offset; /**< Requested physical address (0 for SAREA)*/
562 unsigned long size; /**< Requested physical size (bytes) */
563 enum drm_map_type type; /**< Type of memory to map */
564 enum drm_map_flags flags; /**< Flags */
565 void *handle; /**< User-space: "Handle" to pass to mmap() */
566 /**< Kernel-space: kernel-virtual address */
567 int mtrr; /**< MTRR slot used */
570 typedef struct drm_local_map drm_local_map_t;
575 struct drm_map_list {
576 struct list_head head; /**< list head */
577 struct drm_hash_item hash;
578 struct drm_local_map *map; /**< mapping */
580 struct drm_master *master;
581 struct drm_mm_node *file_offset_node; /**< fake offset */
584 struct drm_vblank_info {
585 wait_queue_head_t queue; /* vblank wait queue */
586 atomic_t count; /* number of VBLANK interrupts */
587 /* (driver must alloc the right number of counters) */
588 atomic_t refcount; /* number of users of vblank interrupts */
589 u32 last; /* protected by dev->vbl_lock, used */
590 /* for wraparound handling */
591 int enabled; /* so we don't call enable more than */
592 /* once per disable */
593 int inmodeset; /* Display driver is setting mode */
596 /* location of GART table */
597 #define DRM_ATI_GART_MAIN 1
598 #define DRM_ATI_GART_FB 2
600 #define DRM_ATI_GART_PCI 1
601 #define DRM_ATI_GART_PCIE 2
602 #define DRM_ATI_GART_IGP 3
604 struct drm_ati_pcigart_info {
605 int gart_table_location;
609 dma_addr_t table_mask;
610 dma_addr_t member_mask;
611 struct drm_dma_handle *table_handle;
612 drm_local_map_t mapping;
614 struct drm_dma_handle *dmah; /* handle for ATI PCIGART table */
618 * GEM specific mm private for tracking GEM objects
621 struct drm_open_hash offset_hash; /**< User token hash table for maps */
622 struct unrhdr *idxunr;
625 struct drm_gem_object {
626 /** Reference count of this object */
627 struct kref refcount;
629 /** Handle count of this object. Each handle also holds a reference */
630 atomic_t handle_count; /* number of handles on this object */
632 /** Related drm device */
633 struct drm_device *dev;
635 /** File representing the shmem storage: filp in Linux parlance */
639 struct drm_hash_item map_list;
642 * Size of the object, in bytes. Immutable over the object's
648 * Global name for this object, starts at 1. 0 means unnamed.
649 * Access is covered by the object_name_lock in the related drm_device
654 * Memory domains. These monitor which caches contain read/write data
655 * related to the object. When transitioning from one set of domains
656 * to another, the driver is called to ensure that caches are suitably
657 * flushed and invalidated
659 uint32_t read_domains;
660 uint32_t write_domain;
663 * While validating an exec operation, the
664 * new read/write domain values are computed here.
665 * They will be transferred to the above values
666 * at the point that any cache flushing occurs
668 uint32_t pending_read_domains;
669 uint32_t pending_write_domain;
671 void *driver_private;
674 /* dma buf exported from this GEM object */
675 struct dma_buf *export_dma_buf;
677 /* dma buf attachment backing this object */
678 struct dma_buf_attachment *import_attach;
679 #endif /* DUMBBELL_WIP */
682 #include "drm_crtc.h"
684 /* per-master structure */
687 struct kref refcount; /* refcount for this master */
689 struct list_head head; /**< each minor contains a list of masters */
690 struct drm_minor *minor; /**< link back to minor we are a master for */
692 char *unique; /**< Unique identifier: e.g., busid */
693 int unique_len; /**< Length of unique field */
694 int unique_size; /**< amount allocated */
696 int blocked; /**< Blocked due to VC switch? */
698 /** \name Authentication */
700 struct drm_open_hash magiclist;
701 struct list_head magicfree;
704 struct drm_lock_data lock; /**< Information on hardware lock */
706 void *driver_priv; /**< Private structure for driver to use */
709 /* Size of ringbuffer for vblank timestamps. Just double-buffer
710 * in initial implementation.
712 #define DRM_VBLANKTIME_RBSIZE 2
714 /* Flags and return codes for get_vblank_timestamp() driver function. */
715 #define DRM_CALLED_FROM_VBLIRQ 1
716 #define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0)
717 #define DRM_VBLANKTIME_INVBL (1 << 1)
719 /* get_scanout_position() return flags */
720 #define DRM_SCANOUTPOS_VALID (1 << 0)
721 #define DRM_SCANOUTPOS_INVBL (1 << 1)
722 #define DRM_SCANOUTPOS_ACCURATE (1 << 2)
725 #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1)
728 #define upper_32_bits(n) ((u32)(((n) >> 16) >> 16))
731 int (*load)(struct drm_device *, unsigned long flags);
732 int (*use_msi)(struct drm_device *, unsigned long flags);
733 int (*firstopen)(struct drm_device *);
734 int (*open)(struct drm_device *, struct drm_file *);
735 void (*preclose)(struct drm_device *, struct drm_file *file_priv);
736 void (*postclose)(struct drm_device *, struct drm_file *);
737 void (*lastclose)(struct drm_device *);
738 int (*unload)(struct drm_device *);
739 void (*reclaim_buffers_locked)(struct drm_device *,
740 struct drm_file *file_priv);
741 int (*dma_ioctl)(struct drm_device *dev, void *data,
742 struct drm_file *file_priv);
743 void (*dma_ready)(struct drm_device *);
744 int (*dma_quiescent)(struct drm_device *);
745 int (*dma_flush_block_and_flush)(struct drm_device *, int context,
746 enum drm_lock_flags flags);
747 int (*dma_flush_unblock)(struct drm_device *, int context,
748 enum drm_lock_flags flags);
749 int (*context_ctor)(struct drm_device *dev, int context);
750 int (*context_dtor)(struct drm_device *dev, int context);
751 int (*kernel_context_switch)(struct drm_device *dev, int old,
753 int (*kernel_context_switch_unlock)(struct drm_device *dev);
754 void (*irq_preinstall)(struct drm_device *dev);
755 int (*irq_postinstall)(struct drm_device *dev);
756 void (*irq_uninstall)(struct drm_device *dev);
757 void (*irq_handler)(DRM_IRQ_ARGS);
759 u32 (*get_vblank_counter)(struct drm_device *dev, int crtc);
760 int (*enable_vblank)(struct drm_device *dev, int crtc);
761 void (*disable_vblank)(struct drm_device *dev, int crtc);
762 int (*get_scanout_position)(struct drm_device *dev, int crtc,
763 int *vpos, int *hpos);
765 int (*get_vblank_timestamp)(struct drm_device *dev, int crtc,
766 int *max_error, struct timeval *vblank_time,
769 int (*gem_init_object)(struct drm_gem_object *obj);
770 void (*gem_free_object)(struct drm_gem_object *obj);
771 int (*gem_open_object)(struct drm_gem_object *, struct drm_file *);
772 void (*gem_close_object)(struct drm_gem_object *, struct drm_file *);
774 struct cdev_pager_ops *gem_pager_ops;
776 int (*dumb_create)(struct drm_file *file_priv,
777 struct drm_device *dev, struct drm_mode_create_dumb *args);
778 int (*dumb_map_offset)(struct drm_file *file_priv,
779 struct drm_device *dev, uint32_t handle, uint64_t *offset);
780 int (*dumb_destroy)(struct drm_file *file_priv,
781 struct drm_device *dev, uint32_t handle);
783 int (*sysctl_init)(struct drm_device *dev,
784 struct sysctl_ctx_list *ctx, struct sysctl_oid *top);
785 void (*sysctl_cleanup)(struct drm_device *dev);
787 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */
790 * Called by \c drm_device_is_agp. Typically used to determine if a
791 * card is really attached to AGP or not.
793 * \param dev DRM device handle
796 * One of three values is returned depending on whether or not the
797 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
798 * (return of 1), or may or may not be AGP (return of 2).
800 int (*device_is_agp) (struct drm_device * dev);
802 drm_ioctl_desc_t *ioctls;
803 #ifdef COMPAT_FREEBSD32
804 drm_ioctl_desc_t *compat_ioctls;
805 int *compat_ioctls_nr;
813 const char *name; /* Simple driver name */
814 const char *desc; /* Longer driver name */
815 const char *date; /* Date of last major changes. */
822 * DRM minor structure. This structure represents a drm minor number.
825 int index; /**< Minor device number */
826 int type; /**< Control or render */
827 device_t kdev; /**< OS device */
828 struct drm_device *dev;
830 struct drm_master *master; /* currently active master for this node */
831 struct list_head master_list;
832 struct drm_mode_group mode_group;
835 /* mode specified on the command line */
836 struct drm_cmdline_mode {
838 bool refresh_specified;
847 enum drm_connector_force force;
851 struct drm_pending_vblank_event {
852 struct drm_pending_event base;
854 struct drm_event_vblank event;
857 /* Length for the array of resource pointers for drm_get_resource_*. */
858 #define DRM_MAX_PCI_RESOURCE 6
861 * DRM device structure. This structure represent a complete card that
862 * may contain multiple heads.
865 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */
867 uint16_t pci_subdevice; /* PCI subsystem device id */
868 uint16_t pci_subvendor; /* PCI subsystem vendor id */
870 char *unique; /* Unique identifier: e.g., busid */
871 int unique_len; /* Length of unique field */
872 struct cdev *devnode; /* Device number for mknod */
873 int if_version; /* Highest interface version set */
875 int flags; /* Flags to open(2) */
878 struct spinlock dma_lock; /* protects dev->dma */
879 struct lwkt_serialize irq_lock; /* protects irq condition checks */
880 struct lock dev_lock; /* protects everything else */
881 struct lock dev_struct_lock;
885 struct lock struct_mutex; /**< For others */
888 /** \name Usage Counters */
890 int open_count; /* Outstanding files open */
891 int buf_use; /* Buffers in use -- cannot alloc */
895 /** \name Performance counters */
897 unsigned long counters;
898 enum drm_stat_type types[15];
903 drm_magic_head_t magiclist[DRM_HASH_SIZE];
905 struct list_head filelist;
907 /** \name Memory management */
909 struct list_head maplist; /**< Linked list of regions */
910 int map_count; /**< Number of mappable regions */
911 struct drm_open_hash map_hash; /**< User token hash table for maps */
913 drm_local_map_t **context_sareas;
916 struct drm_lock_data lock; /* Information on hardware lock */
918 /* DMA queues (contexts) */
919 drm_device_dma_t *dma; /* Optional pointer for DMA support */
921 /* Context support */
922 int irq; /* Interrupt used by board */
923 int msi_enabled; /* MSI enabled */
924 int irqrid; /* Interrupt used by board */
925 struct resource *irqr; /* Resource for interrupt used by board */
926 void *irqh; /* Handle from bus_setup_intr */
928 /* Storage of resource pointers for drm_get_resource_* */
929 struct resource *pcir[DRM_MAX_PCI_RESOURCE];
930 int pcirid[DRM_MAX_PCI_RESOURCE];
937 /** \name Context support */
939 int irq_enabled; /**< True if irq handler is enabled */
940 __volatile__ long context_flag; /**< Context swapping flag */
941 int last_context; /**< Last current context */
946 struct sigio *buf_sigio; /* Processes waiting for SIGIO */
949 struct drm_sysctl_info *sysctl;
953 drm_sg_mem_t *sg; /* Scatter gather memory */
954 unsigned long *ctx_bitmap;
960 * At load time, disabling the vblank interrupt won't be allowed since
961 * old clients may not call the modeset ioctl and therefore misbehave.
962 * Once the modeset ioctl *has* been called though, we can safely
963 * disable them when unused.
965 int vblank_disable_allowed;
967 wait_queue_head_t *vbl_queue; /**< VBLANK wait queue */
968 atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */
969 struct timeval *_vblank_time; /**< timestamp of current vblank_count (drivers must alloc right number of fields) */
970 struct lock vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */
971 struct lock vbl_lock;
972 atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */
973 u32 *last_vblank; /* protected by dev->vbl_lock, used */
974 /* for wraparound handling */
975 int *vblank_enabled; /* so we don't call enable more than
977 int *vblank_inmodeset; /* Display driver is setting mode */
978 u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */
979 struct timer_list vblank_disable_timer;
981 u32 max_vblank_count; /**< size of vblank counter register */
986 struct list_head vblank_event_list;
987 struct lock event_lock;
991 struct drm_agp_head *agp; /**< AGP data */
993 struct device *dev; /**< Device structure */
994 struct pci_dev *pdev; /**< PCI device structure */
995 int pci_vendor; /**< PCI vendor id */
996 int pci_device; /**< PCI device id */
998 struct drm_driver *driver;
999 struct drm_local_map *agp_buffer_map;
1000 unsigned int agp_buffer_token;
1001 struct drm_minor *control; /**< Control node for card */
1002 struct drm_minor *primary; /**< render type primary screen head */
1004 struct drm_mode_config mode_config; /**< Current mode config */
1006 /** \name GEM information */
1008 struct lock object_name_lock;
1009 struct idr object_name_idr;
1013 void *sysctl_private;
1014 char busid_str[128];
1017 int switch_power_state;
1020 #define DRM_SWITCH_POWER_ON 0
1021 #define DRM_SWITCH_POWER_OFF 1
1022 #define DRM_SWITCH_POWER_CHANGING 2
1024 static __inline__ int drm_core_check_feature(struct drm_device *dev,
1027 return ((dev->driver->driver_features & feature) ? 1 : 0);
1031 static inline int drm_core_has_AGP(struct drm_device *dev)
1033 return drm_core_check_feature(dev, DRIVER_USE_AGP);
1036 #define drm_core_has_AGP(dev) (0)
1046 DMI_PRODUCT_VERSION,
1053 DMI_BOARD_ASSET_TAG,
1056 DMI_CHASSIS_VERSION,
1058 DMI_CHASSIS_ASSET_TAG,
1062 struct dmi_strmatch {
1067 struct dmi_system_id {
1068 int (*callback)(const struct dmi_system_id *);
1070 struct dmi_strmatch matches[4];
1072 #define DMI_MATCH(a, b) {(a), (b)}
1073 bool dmi_check_system(const struct dmi_system_id *);
1075 extern int drm_notyet_flag;
1076 extern int drm_debug;
1078 extern unsigned int drm_vblank_offdelay;
1079 extern unsigned int drm_timestamp_precision;
1080 extern unsigned int drm_timestamp_monotonic;
1082 /* Device setup support (drm_drv.c) */
1083 int drm_probe(device_t kdev, drm_pci_id_list_t *idlist);
1084 int drm_attach(device_t kdev, drm_pci_id_list_t *idlist);
1085 int drm_create_cdevs(device_t kdev);
1086 int drm_detach(device_t kdev);
1087 d_ioctl_t drm_ioctl;
1089 d_close_t drm_close;
1091 d_kqfilter_t drm_kqfilter;
1093 d_mmap_single_t drm_mmap_single;
1094 extern drm_local_map_t *drm_getsarea(struct drm_device *dev);
1096 void drm_cdevpriv_dtor(void *cd);
1098 void drm_event_wakeup(struct drm_pending_event *e);
1100 int drm_add_busid_modesetting(struct drm_device *dev,
1101 struct sysctl_ctx_list *ctx, struct sysctl_oid *top);
1103 /* File operations helpers (drm_fops.c) */
1104 extern int drm_open_helper(struct cdev *kdev, int flags, int fmt,
1106 struct drm_device *dev,
1108 extern struct drm_file *drm_find_file_by_proc(struct drm_device *dev,
1112 extern int drm_gem_prime_handle_to_fd(struct drm_device *dev,
1113 struct drm_file *file_priv, uint32_t handle, uint32_t flags,
1115 extern int drm_gem_prime_fd_to_handle(struct drm_device *dev,
1116 struct drm_file *file_priv, int prime_fd, uint32_t *handle);
1118 extern int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data,
1119 struct drm_file *file_priv);
1120 extern int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data,
1121 struct drm_file *file_priv);
1128 extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, vm_page_t *pages,
1129 dma_addr_t *addrs, int max_pages);
1130 #endif /* DUMBBELL_WIP */
1131 extern struct sg_table *drm_prime_pages_to_sg(vm_page_t *pages, int nr_pages);
1132 extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg);
1135 void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv);
1136 void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv);
1137 int drm_prime_add_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t handle);
1138 int drm_prime_lookup_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t *handle);
1139 void drm_prime_remove_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf);
1141 int drm_prime_add_dma_buf(struct drm_device *dev, struct drm_gem_object *obj);
1142 int drm_prime_lookup_obj(struct drm_device *dev, struct dma_buf *buf,
1143 struct drm_gem_object **obj);
1144 #endif /* DUMBBELL_WIP */
1146 /* Memory management support (drm_memory.c) */
1147 void drm_mem_init(void);
1148 void drm_mem_uninit(void);
1149 void *drm_ioremap_wc(struct drm_device *dev, drm_local_map_t *map);
1150 void *drm_ioremap(struct drm_device *dev, drm_local_map_t *map);
1151 void drm_ioremapfree(drm_local_map_t *map);
1152 int drm_mtrr_add(unsigned long offset, size_t size, int flags);
1153 int drm_mtrr_del(int handle, unsigned long offset, size_t size, int flags);
1155 int drm_ctxbitmap_init(struct drm_device *dev);
1156 void drm_ctxbitmap_cleanup(struct drm_device *dev);
1157 void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
1158 int drm_ctxbitmap_next(struct drm_device *dev);
1160 /* Locking IOCTL support (drm_lock.c) */
1161 int drm_lock_take(struct drm_lock_data *lock_data,
1162 unsigned int context);
1163 int drm_lock_transfer(struct drm_lock_data *lock_data,
1164 unsigned int context);
1165 int drm_lock_free(struct drm_lock_data *lock_data,
1166 unsigned int context);
1169 * These are exported to drivers so that they can implement fencing using
1170 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
1173 unsigned long drm_get_resource_start(struct drm_device *dev,
1174 unsigned int resource);
1175 unsigned long drm_get_resource_len(struct drm_device *dev,
1176 unsigned int resource);
1177 void drm_rmmap(struct drm_device *dev, drm_local_map_t *map);
1178 int drm_order(unsigned long size);
1179 int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc *request);
1180 int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc *request);
1181 extern int drm_addmap(struct drm_device *dev, resource_size_t offset,
1182 unsigned int size, enum drm_map_type type,
1183 enum drm_map_flags flags, struct drm_local_map **map_ptr);
1185 /* DMA support (drm_dma.c) */
1186 int drm_dma_setup(struct drm_device *dev);
1187 void drm_dma_takedown(struct drm_device *dev);
1188 void drm_free_buffer(struct drm_device *dev, drm_buf_t *buf);
1189 void drm_reclaim_buffers(struct drm_device *dev, struct drm_file *file_priv);
1190 #define drm_core_reclaim_buffers drm_reclaim_buffers
1192 /* IRQ support (drm_irq.h) */
1193 int drm_irq_install(struct drm_device *dev);
1194 int drm_irq_uninstall(struct drm_device *dev);
1195 void drm_driver_irq_preinstall(struct drm_device *dev);
1196 void drm_driver_irq_postinstall(struct drm_device *dev);
1197 void drm_driver_irq_uninstall(struct drm_device *dev);
1199 void drm_vblank_pre_modeset(struct drm_device *dev, int crtc);
1200 void drm_vblank_post_modeset(struct drm_device *dev, int crtc);
1201 int drm_modeset_ctl(struct drm_device *dev, void *data,
1202 struct drm_file *file_priv);
1204 extern int drm_vblank_init(struct drm_device *dev, int num_crtcs);
1205 extern int drm_wait_vblank(struct drm_device *dev, void *data,
1206 struct drm_file *filp);
1207 extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq);
1208 extern u32 drm_vblank_count(struct drm_device *dev, int crtc);
1209 extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc,
1210 struct timeval *vblanktime);
1211 extern void drm_send_vblank_event(struct drm_device *dev, int crtc,
1212 struct drm_pending_vblank_event *e);
1213 extern bool drm_handle_vblank(struct drm_device *dev, int crtc);
1214 void drm_handle_vblank_events(struct drm_device *dev, int crtc);
1215 extern int drm_vblank_get(struct drm_device *dev, int crtc);
1216 extern void drm_vblank_put(struct drm_device *dev, int crtc);
1217 extern void drm_vblank_off(struct drm_device *dev, int crtc);
1218 extern void drm_vblank_cleanup(struct drm_device *dev);
1219 extern u32 drm_get_last_vbltimestamp(struct drm_device *dev, int crtc,
1220 struct timeval *tvblank, unsigned flags);
1221 extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev,
1222 int crtc, int *max_error,
1223 struct timeval *vblank_time,
1225 struct drm_crtc *refcrtc);
1226 extern void drm_calc_timestamping_constants(struct drm_crtc *crtc);
1228 /* AGP/PCI Express/GART support (drm_agpsupport.c) */
1229 int drm_device_is_agp(struct drm_device *dev);
1230 int drm_device_is_pcie(struct drm_device *dev);
1231 drm_agp_head_t *drm_agp_init(void);
1232 int drm_agp_acquire(struct drm_device *dev);
1233 int drm_agp_release(struct drm_device *dev);
1234 int drm_agp_info(struct drm_device * dev, struct drm_agp_info *info);
1235 int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode);
1236 void *drm_agp_allocate_memory(size_t pages, u32 type);
1237 int drm_agp_free_memory(void *handle);
1238 int drm_agp_bind_memory(void *handle, off_t start);
1239 int drm_agp_unbind_memory(void *handle);
1240 int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request);
1241 int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request);
1242 int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
1243 int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request);
1245 /* Scatter Gather Support (drm_scatter.c) */
1246 void drm_sg_cleanup(drm_sg_mem_t *entry);
1247 int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request);
1249 /* sysctl support (drm_sysctl.h) */
1250 extern int drm_sysctl_init(struct drm_device *dev);
1251 extern int drm_sysctl_cleanup(struct drm_device *dev);
1253 /* ATI PCIGART support (ati_pcigart.c) */
1254 int drm_ati_pcigart_init(struct drm_device *dev,
1255 struct drm_ati_pcigart_info *gart_info);
1256 int drm_ati_pcigart_cleanup(struct drm_device *dev,
1257 struct drm_ati_pcigart_info *gart_info);
1259 /* Cache management (drm_memory.c) */
1260 void drm_clflush_pages(vm_page_t *pages, unsigned long num_pages);
1262 /* Locking IOCTL support (drm_drv.c) */
1263 int drm_lock(struct drm_device *dev, void *data,
1264 struct drm_file *file_priv);
1265 int drm_unlock(struct drm_device *dev, void *data,
1266 struct drm_file *file_priv);
1267 int drm_version(struct drm_device *dev, void *data,
1268 struct drm_file *file_priv);
1269 int drm_setversion(struct drm_device *dev, void *data,
1270 struct drm_file *file_priv);
1272 /* Misc. IOCTL support (drm_ioctl.c) */
1273 int drm_irq_by_busid(struct drm_device *dev, void *data,
1274 struct drm_file *file_priv);
1275 int drm_getunique(struct drm_device *dev, void *data,
1276 struct drm_file *file_priv);
1277 int drm_setunique(struct drm_device *dev, void *data,
1278 struct drm_file *file_priv);
1279 int drm_getmap(struct drm_device *dev, void *data,
1280 struct drm_file *file_priv);
1281 int drm_getclient(struct drm_device *dev, void *data,
1282 struct drm_file *file_priv);
1283 int drm_getstats(struct drm_device *dev, void *data,
1284 struct drm_file *file_priv);
1285 int drm_getcap(struct drm_device *dev, void *data,
1286 struct drm_file *file_priv);
1287 int drm_noop(struct drm_device *dev, void *data,
1288 struct drm_file *file_priv);
1290 /* Context IOCTL support (drm_context.c) */
1291 int drm_resctx(struct drm_device *dev, void *data,
1292 struct drm_file *file_priv);
1293 int drm_addctx(struct drm_device *dev, void *data,
1294 struct drm_file *file_priv);
1295 int drm_modctx(struct drm_device *dev, void *data,
1296 struct drm_file *file_priv);
1297 int drm_getctx(struct drm_device *dev, void *data,
1298 struct drm_file *file_priv);
1299 int drm_switchctx(struct drm_device *dev, void *data,
1300 struct drm_file *file_priv);
1301 int drm_newctx(struct drm_device *dev, void *data,
1302 struct drm_file *file_priv);
1303 int drm_rmctx(struct drm_device *dev, void *data,
1304 struct drm_file *file_priv);
1305 int drm_setsareactx(struct drm_device *dev, void *data,
1306 struct drm_file *file_priv);
1307 int drm_getsareactx(struct drm_device *dev, void *data,
1308 struct drm_file *file_priv);
1310 /* Authentication IOCTL support (drm_auth.c) */
1311 int drm_getmagic(struct drm_device *dev, void *data,
1312 struct drm_file *file_priv);
1313 int drm_authmagic(struct drm_device *dev, void *data,
1314 struct drm_file *file_priv);
1316 /* Buffer management support (drm_bufs.c) */
1317 int drm_addmap_ioctl(struct drm_device *dev, void *data,
1318 struct drm_file *file_priv);
1319 int drm_rmmap_ioctl(struct drm_device *dev, void *data,
1320 struct drm_file *file_priv);
1321 int drm_addbufs(struct drm_device *dev, void *data,
1322 struct drm_file *file_priv);
1323 int drm_infobufs(struct drm_device *dev, void *data,
1324 struct drm_file *file_priv);
1325 int drm_markbufs(struct drm_device *dev, void *data,
1326 struct drm_file *file_priv);
1327 int drm_freebufs(struct drm_device *dev, void *data,
1328 struct drm_file *file_priv);
1329 int drm_mapbufs(struct drm_device *dev, void *data,
1330 struct drm_file *file_priv);
1332 /* DMA support (drm_dma.c) */
1333 int drm_dma(struct drm_device *dev, void *data, struct drm_file *file_priv);
1335 /* IRQ support (drm_irq.c) */
1336 int drm_control(struct drm_device *dev, void *data,
1337 struct drm_file *file_priv);
1339 /* AGP/GART support (drm_agpsupport.c) */
1340 int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
1341 struct drm_file *file_priv);
1342 int drm_agp_release_ioctl(struct drm_device *dev, void *data,
1343 struct drm_file *file_priv);
1344 int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
1345 struct drm_file *file_priv);
1346 int drm_agp_info_ioctl(struct drm_device *dev, void *data,
1347 struct drm_file *file_priv);
1348 int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
1349 struct drm_file *file_priv);
1350 int drm_agp_free_ioctl(struct drm_device *dev, void *data,
1351 struct drm_file *file_priv);
1352 int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
1353 struct drm_file *file_priv);
1354 int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
1355 struct drm_file *file_priv);
1357 /* Stub support (drm_stub.h) */
1358 extern int drm_setmaster_ioctl(struct drm_device *dev, void *data,
1359 struct drm_file *file_priv);
1360 extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
1361 struct drm_file *file_priv);
1363 /* Scatter Gather Support (drm_scatter.c) */
1364 int drm_sg_alloc_ioctl(struct drm_device *dev, void *data,
1365 struct drm_file *file_priv);
1366 int drm_sg_free(struct drm_device *dev, void *data,
1367 struct drm_file *file_priv);
1369 /* consistent PCI memory functions (drm_pci.c) */
1370 extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
1372 void drm_pci_free(struct drm_device *dev, drm_dma_handle_t *dmah);
1374 /* sysfs support (drm_sysfs.c) */
1375 extern char *drm_get_connector_status_name(enum drm_connector_status status);
1377 /* Graphics Execution Manager library functions (drm_gem.c) */
1378 int drm_gem_init(struct drm_device *dev);
1379 void drm_gem_destroy(struct drm_device *dev);
1380 void drm_gem_object_release(struct drm_gem_object *obj);
1381 void drm_gem_object_free(struct kref *kref);
1383 int drm_gem_close_ioctl(struct drm_device *dev, void *data,
1384 struct drm_file *file_priv);
1385 int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
1386 struct drm_file *file_priv);
1387 int drm_gem_open_ioctl(struct drm_device *dev, void *data,
1388 struct drm_file *file_priv);
1389 void drm_gem_object_handle_free(struct drm_gem_object *obj);
1391 #include <drm/drm_global.h>
1394 drm_gem_object_reference(struct drm_gem_object *obj)
1396 kref_get(&obj->refcount);
1400 drm_gem_object_unreference(struct drm_gem_object *obj)
1403 kref_put(&obj->refcount, drm_gem_object_free);
1407 drm_gem_object_unreference_unlocked(struct drm_gem_object *obj)
1410 struct drm_device *dev = obj->dev;
1412 kref_put(&obj->refcount, drm_gem_object_free);
1417 int drm_gem_handle_create(struct drm_file *file_priv,
1418 struct drm_gem_object *obj,
1420 int drm_gem_handle_delete(struct drm_file *filp, u32 handle);
1423 drm_gem_object_handle_reference(struct drm_gem_object *obj)
1425 drm_gem_object_reference(obj);
1426 atomic_inc(&obj->handle_count);
1430 drm_gem_object_handle_unreference(struct drm_gem_object *obj)
1435 if (atomic_read(&obj->handle_count) == 0)
1438 * Must bump handle count first as this may be the last
1439 * ref, in which case the object would disappear before we
1440 * checked for a name
1442 if (atomic_dec_and_test(&obj->handle_count))
1443 drm_gem_object_handle_free(obj);
1444 drm_gem_object_unreference(obj);
1448 drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj)
1453 if (atomic_read(&obj->handle_count) == 0)
1457 * Must bump handle count first as this may be the last
1458 * ref, in which case the object would disappear before we
1459 * checked for a name
1462 if (atomic_dec_and_test(&obj->handle_count))
1463 drm_gem_object_handle_free(obj);
1464 drm_gem_object_unreference_unlocked(obj);
1467 int drm_gem_object_init(struct drm_device *dev, struct drm_gem_object *obj,
1469 int drm_gem_private_object_init(struct drm_device *dev,
1470 struct drm_gem_object *obj, size_t size);
1471 struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev,
1473 struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev,
1474 struct drm_file *file_priv, uint32_t handle);
1476 void drm_gem_open(struct drm_device *dev, struct drm_file *file_priv);
1477 void drm_gem_release(struct drm_device *dev, struct drm_file *file_priv);
1479 int drm_gem_create_mmap_offset(struct drm_gem_object *obj);
1480 void drm_gem_free_mmap_offset(struct drm_gem_object *obj);
1481 int drm_gem_mmap_single(struct drm_device *dev, vm_ooffset_t *offset,
1482 vm_size_t size, struct vm_object **obj_res, int nprot);
1483 void drm_gem_pager_dtr(void *obj);
1485 struct ttm_bo_device;
1486 int ttm_bo_mmap_single(struct ttm_bo_device *bdev, vm_ooffset_t *offset,
1487 vm_size_t size, struct vm_object **obj_res, int nprot);
1488 struct ttm_buffer_object;
1489 void ttm_bo_release_mmap(struct ttm_buffer_object *bo);
1491 void drm_device_lock_mtx(struct drm_device *dev);
1492 void drm_device_unlock_mtx(struct drm_device *dev);
1493 int drm_device_sleep_mtx(struct drm_device *dev, void *chan, int flags,
1494 const char *msg, int timeout);
1495 void drm_device_assert_mtx_locked(struct drm_device *dev);
1496 void drm_device_assert_mtx_unlocked(struct drm_device *dev);
1498 void drm_device_lock_struct(struct drm_device *dev);
1499 void drm_device_unlock_struct(struct drm_device *dev);
1500 int drm_device_sleep_struct(struct drm_device *dev, void *chan, int flags,
1501 const char *msg, int timeout);
1502 void drm_device_assert_struct_locked(struct drm_device *dev);
1503 void drm_device_assert_struct_unlocked(struct drm_device *dev);
1505 void drm_compat_locking_init(struct drm_device *dev);
1506 void drm_sleep_locking_init(struct drm_device *dev);
1509 bool drm_mode_parse_command_line_for_connector(const char *mode_option,
1510 struct drm_connector *connector, struct drm_cmdline_mode *mode);
1511 struct drm_display_mode *drm_mode_create_from_cmdline_mode(
1512 struct drm_device *dev, struct drm_cmdline_mode *cmd);
1514 /* Inline replacements for drm_alloc and friends */
1515 static __inline__ void *
1516 drm_alloc(size_t size, struct malloc_type *area)
1518 return kmalloc(size, area, M_WAITOK | M_NULLOK);
1521 static __inline__ void *
1522 drm_calloc(size_t nmemb, size_t size, struct malloc_type *area)
1524 return kmalloc(size * nmemb, area, M_WAITOK | M_NULLOK | M_ZERO);
1527 static __inline__ void *
1528 drm_realloc(void *oldpt, size_t oldsize, size_t size,
1529 struct malloc_type *area)
1532 res = krealloc(oldpt, size, area, M_WAITOK | M_NULLOK);
1533 if (res == NULL && oldpt != NULL)
1538 static __inline__ void
1539 drm_free(void *pt, struct malloc_type *area)
1545 /* Inline replacements for DRM_IOREMAP macros */
1546 static __inline__ void
1547 drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev)
1549 map->handle = drm_ioremap_wc(dev, map);
1551 static __inline__ void
1552 drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev)
1554 map->handle = drm_ioremap(dev, map);
1556 static __inline__ void
1557 drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev)
1559 if ( map->handle && map->size )
1560 drm_ioremapfree(map);
1563 static __inline__ struct drm_local_map *
1564 drm_core_findmap(struct drm_device *dev, unsigned long offset)
1566 struct drm_map_list *_entry;
1568 list_for_each_entry(_entry, &dev->maplist, head) {
1569 if (offset == (unsigned long)_entry->map->handle)
1575 static __inline__ void drm_core_dropmap(struct drm_map *map)
1579 #include <drm/drm_mem_util.h>
1581 /* FreeBSD compatibility macros */
1582 #define VM_OBJECT_WLOCK(object) VM_OBJECT_LOCK(object)
1583 #define VM_OBJECT_WUNLOCK(object) VM_OBJECT_UNLOCK(object)
1585 #define DRM_PCIE_SPEED_25 1
1586 #define DRM_PCIE_SPEED_50 2
1587 #define DRM_PCIE_SPEED_80 4
1589 extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask);
1591 #define drm_can_sleep() (DRM_HZ & 1)
1593 #endif /* __KERNEL__ */
1594 #endif /* _DRM_P_H_ */