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 MALLOC_DECLARE(M_DRM);
95 #include <uapi_drm/drm.h>
96 #include <uapi_drm/drm_sarea.h>
98 #include <linux/atomic.h>
99 #include <linux/bug.h>
100 #include <linux/err.h>
101 #include <linux/idr.h>
102 #include <linux/pci.h>
103 #include <linux/jiffies.h>
104 #include <linux/kernel.h>
105 #include <linux/kref.h>
106 #include <linux/list.h>
107 #include <linux/mm.h>
108 #include <linux/moduleparam.h>
109 #include <linux/mutex.h>
110 #include <linux/scatterlist.h>
111 #include <linux/timer.h>
113 #include <linux/types.h>
114 #include <linux/wait.h>
115 #include <linux/workqueue.h>
117 #include <asm/uaccess.h>
122 #include <drm/drm_os_linux.h>
123 #include <drm/drm_hashtab.h>
124 #include <drm/drm_mm.h>
126 #define DRM_UT_CORE 0x01
127 #define DRM_UT_DRIVER 0x02
128 #define DRM_UT_KMS 0x04
129 #define DRM_UT_PRIME 0x08
134 #define DRM_DEBUG_DEFAULT_ON 1
135 #endif /* DRM_DEBUG */
137 #define DRM_DEBUGBITS_DEBUG 0x1
138 #define DRM_DEBUGBITS_KMS 0x2
139 #define DRM_DEBUGBITS_FAILED_IOCTL 0x4
144 /***********************************************************************/
145 /** \name DRM template customization defaults */
148 /* driver capabilities and requirements mask */
149 #define DRIVER_USE_AGP 0x1
150 #define DRIVER_REQUIRE_AGP 0x2
151 #define DRIVER_USE_MTRR 0x4
152 #define DRIVER_PCI_DMA 0x8
153 #define DRIVER_SG 0x10
154 #define DRIVER_HAVE_DMA 0x20
155 #define DRIVER_HAVE_IRQ 0x40
156 #define DRIVER_IRQ_SHARED 0x80
157 #define DRIVER_IRQ_VBL 0x100
158 #define DRIVER_DMA_QUEUE 0x200
159 #define DRIVER_FB_DMA 0x400
160 #define DRIVER_IRQ_VBL2 0x800
161 #define DRIVER_GEM 0x1000
162 #define DRIVER_MODESET 0x2000
163 #define DRIVER_PRIME 0x4000
164 #define DRIVER_LOCKLESS_IRQ 0x8000
166 /***********************************************************************/
167 /** \name Begin the DRM... */
170 #define DRM_HASH_SIZE 16 /* Size of key hash table */
171 #define DRM_KERNEL_CONTEXT 0 /* Change drm_resctx if changed */
172 #define DRM_RESERVED_CONTEXTS 1 /* Change drm_resctx if changed */
174 #define DRM_GEM_MAPPING_MASK (3ULL << 62)
175 #define DRM_GEM_MAPPING_KEY (2ULL << 62) /* Non-canonical address form */
176 #define DRM_GEM_MAX_IDX 0x3fffff
177 #define DRM_GEM_MAPPING_IDX(o) (((o) >> 40) & DRM_GEM_MAX_IDX)
178 #define DRM_GEM_MAPPING_OFF(i) (((uint64_t)(i)) << 40)
179 #define DRM_GEM_MAPPING_MAPOFF(o) \
180 ((o) & ~(DRM_GEM_MAPPING_OFF(DRM_GEM_MAX_IDX) | DRM_GEM_MAPPING_KEY))
182 SYSCTL_DECL(_hw_drm);
184 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
186 /***********************************************************************/
187 /** \name Internal types and structures */
190 #define DRM_ARRAY_SIZE(x) NELEM(x)
191 #define DRM_MIN(a,b) ((a)<(b)?(a):(b))
192 #define DRM_MAX(a,b) ((a)>(b)?(a):(b))
194 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
196 #define __OS_HAS_AGP 1
198 #define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP)
199 #define DRM_DEV_UID 0
200 #define DRM_DEV_GID 0
202 #define DRM_WAKEUP(w) wakeup((void *)w)
203 #define DRM_WAKEUP_INT(w) wakeup(w)
204 #define DRM_INIT_WAITQUEUE(queue) do {(void)(queue);} while (0)
206 #define DRM_CURPROC curthread
207 #define DRM_STRUCTPROC struct thread
208 #define DRM_CURRENTPID (curproc != NULL ? curproc->p_pid : -1)
209 #define DRM_LOCK(dev) lockmgr(&(dev)->struct_mutex, LK_EXCLUSIVE)
210 #define DRM_UNLOCK(dev) lockmgr(&(dev)->struct_mutex, LK_RELEASE)
211 #define DRM_LOCK_SLEEP(dev, chan, flags, msg, timeout) \
212 (lksleep((chan), &(dev)->struct_mutex, (flags), (msg), (timeout)))
213 #if defined(INVARIANTS)
214 #define DRM_LOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->struct_mutex, curthread) != 0);
215 #define DRM_UNLOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->struct_mutex, curthread) == 0);
217 #define DRM_LOCK_ASSERT(d)
218 #define DRM_UNLOCK_ASSERT(d)
221 #define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS)
223 #define DRM_IRQ_ARGS void *arg
224 typedef void irqreturn_t;
225 #define IRQ_HANDLED /* nothing */
226 #define IRQ_NONE /* nothing */
233 #define DRM_AGP_MEM struct agp_memory_info
235 #define drm_get_device_from_kdev(_kdev) (_kdev->si_drv1)
237 /* DRM_SUSER returns true if the user is superuser */
238 #define DRM_SUSER(p) (priv_check(p, PRIV_DRIVER) == 0)
239 #define DRM_AGP_FIND_DEVICE() agp_find_device()
240 #define DRM_MTRR_WC MDF_WRITECOMBINE
242 /* DRM_READMEMORYBARRIER() prevents reordering of reads.
243 * DRM_WRITEMEMORYBARRIER() prevents reordering of writes.
244 * DRM_MEMORYBARRIER() prevents reordering of reads and writes.
246 #define DRM_READMEMORYBARRIER() cpu_lfence()
247 #define DRM_WRITEMEMORYBARRIER() cpu_sfence()
248 #define DRM_MEMORYBARRIER() cpu_mfence()
250 #define DRM_VERIFYAREA_READ( uaddr, size ) \
251 (!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ))
253 #define DRM_COPY_TO_USER(user, kern, size) \
254 copyout(kern, user, size)
255 #define DRM_COPY_FROM_USER(kern, user, size) \
256 copyin(user, kern, size)
257 #define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \
258 copyin(arg2, arg1, arg3)
259 #define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \
260 copyout(arg2, arg1, arg3)
261 #define DRM_GET_USER_UNCHECKED(val, uaddr) \
262 ((val) = fuword32(uaddr), 0)
264 #define drm_can_sleep() (DRM_HZ & 1)
266 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
267 (_map) = (_dev)->context_sareas[_ctx]; \
270 #define LOCK_TEST_WITH_RETURN(dev, file_priv) \
272 if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) || \
273 dev->lock.file_priv != file_priv) { \
274 DRM_ERROR("%s called without lock held\n", \
280 /* Returns -errno to shared code */
281 #define DRM_WAIT_ON( ret, queue, timeout, condition ) \
282 for ( ret = 0 ; !ret && !(condition) ; ) { \
284 lwkt_serialize_enter(&dev->irq_lock); \
285 if (!(condition)) { \
286 tsleep_interlock(&(queue), PCATCH); \
287 lwkt_serialize_exit(&dev->irq_lock); \
288 ret = -tsleep(&(queue), PCATCH | PINTERLOCKED, \
289 "drmwtq", (timeout)); \
291 lwkt_serialize_exit(&dev->irq_lock); \
297 vm_page_unhold_pages(vm_page_t *ma, int count)
301 for (i = 0; i < count; i++)
302 vm_page_unhold(ma[i]);
305 int vm_phys_fictitious_reg_range(vm_paddr_t start, vm_paddr_t end,
306 vm_memattr_t memattr);
307 void vm_phys_fictitious_unreg_range(vm_paddr_t start, vm_paddr_t end);
308 vm_page_t vm_phys_fictitious_to_vm_page(vm_paddr_t pa);
310 #define DRM_ERROR(fmt, ...) \
311 kprintf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \
312 DRM_CURRENTPID, __func__ , ##__VA_ARGS__)
314 #define DRM_INFO(fmt, ...) kprintf("info: [" DRM_NAME "] " fmt , ##__VA_ARGS__)
316 #define DRM_DEBUG(fmt, ...) do { \
317 if ((drm_debug & DRM_DEBUGBITS_DEBUG) != 0) \
318 kprintf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \
319 __func__ , ##__VA_ARGS__); \
322 #define DRM_DEBUG_KMS(fmt, ...) do { \
323 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \
324 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\
325 __func__ , ##__VA_ARGS__); \
328 #define DRM_DEBUG_DRIVER(fmt, ...) do { \
329 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \
330 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\
331 __func__ , ##__VA_ARGS__); \
334 #define DRM_LOG_KMS(fmt, ...) do { \
335 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID, \
336 __func__ , ##__VA_ARGS__); \
339 #define dev_dbg(dev, fmt, ...) do { \
340 if ((drm_debug& DRM_DEBUGBITS_KMS) != 0) { \
341 device_printf((dev), "debug: " fmt, ## __VA_ARGS__); \
345 typedef struct drm_pci_id_list
353 struct drm_msi_blacklist_entry
359 #define DRM_IOCTL_NR(n) ((n) & 0xff)
362 #define DRM_MASTER 0x2
363 #define DRM_ROOT_ONLY 0x4
364 #define DRM_CONTROL_ALLOW 0x8
365 #define DRM_UNLOCKED 0x10
367 typedef struct drm_ioctl_desc {
369 int (*func)(struct drm_device *dev, void *data,
370 struct drm_file *file_priv);
372 unsigned int cmd_drv;
376 * Creates a driver or general drm_ioctl_desc array entry for the given
377 * ioctl, for use by drm_ioctl().
379 #define DRM_IOCTL_DEF(ioctl, func, flags) \
380 [DRM_IOCTL_NR(ioctl)] = {ioctl, func, flags}
382 #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \
383 [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl}
385 typedef struct drm_magic_entry {
387 struct drm_file *priv;
388 struct drm_magic_entry *next;
391 typedef struct drm_magic_head {
392 struct drm_magic_entry *head;
393 struct drm_magic_entry *tail;
396 typedef struct drm_buf {
397 int idx; /**< Index into master buflist */
398 int total; /**< Buffer size */
399 int order; /**< log-base-2(total) */
400 int used; /**< Amount of buffer in use (for DMA) */
401 unsigned long offset; /**< Byte offset (used internally) */
402 void *address; /**< Address of buffer */
403 unsigned long bus_address; /**< Bus address of buffer */
404 struct drm_buf *next; /**< Kernel-only: used for free list */
405 __volatile__ int waiting; /**< On kernel DMA queue */
406 __volatile__ int pending; /**< On hardware DMA queue */
407 struct drm_file *file_priv; /**< Private of holding file descr */
408 int context; /**< Kernel queue for this buffer */
409 int while_locked; /**< Dispatch this buffer while locked */
417 } list; /**< Which list we're on */
419 int dev_priv_size; /**< Size of buffer private storage */
420 void *dev_private; /**< Per-buffer private storage */
423 struct drm_freelist {
424 int initialized; /* Freelist in use */
425 atomic_t count; /* Number of free buffers */
426 drm_buf_t *next; /* End pointer */
428 wait_queue_head_t waiting; /**< Processes waiting on free bufs */
429 int low_mark; /* Low water mark */
430 int high_mark; /* High water mark */
433 typedef struct drm_dma_handle {
440 typedef struct drm_buf_entry {
445 drm_dma_handle_t **seglist;
448 struct drm_freelist freelist;
451 /* Event queued up for userspace to read */
452 struct drm_pending_event {
453 struct drm_event *event;
454 struct list_head link;
455 struct drm_file *file_priv;
456 pid_t pid; /* pid of requester, no guarantee it's valid by the time
457 we deliver the event, for tracing only */
458 void (*destroy)(struct drm_pending_event *event);
461 /* initial implementaton using a linked list - todo hashtab */
462 struct drm_prime_file_private {
463 struct list_head head;
466 #endif /* DUMBBELL_WIP */
469 /** File private data */
472 struct drm_device *dev;
477 unsigned long ioctl_count;
478 struct list_head lhead;
481 /** Mapping of mm object handles to object pointers. */
482 struct idr object_idr;
483 /** Lock for synchronization of access to object_idr. */
484 struct lock table_lock;
489 struct drm_master *masterp;
491 struct list_head fbs;
493 wait_queue_head_t event_wait;
494 struct list_head event_list;
497 struct drm_prime_file_private prime;
503 struct drm_lock_data {
504 struct drm_hw_lock *hw_lock; /**< Hardware lock */
505 /** Private of lock holder's file (NULL=kernel) */
506 struct drm_file *file_priv;
507 wait_queue_head_t lock_queue; /**< Queue of blocked processes */
508 unsigned long lock_time; /**< Time of last lock in jiffies */
511 /* This structure, in the struct drm_device, is always initialized while the
513 * is open. dev->dma_lock protects the incrementing of dev->buf_use, which
514 * when set marks that no further bufs may be allocated until device teardown
515 * occurs (when the last open of the device has closed). The high/low
516 * watermarks of bufs are only touched by the X Server, and thus not
517 * concurrently accessed, so no locking is needed.
519 typedef struct drm_device_dma {
521 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */
522 int buf_count; /**< total number of buffers */
523 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */
525 int page_count; /**< number of pages */
526 unsigned long *pagelist; /**< page list */
527 unsigned long byte_count;
529 _DRM_DMA_USE_AGP = 0x01,
530 _DRM_DMA_USE_SG = 0x02,
531 _DRM_DMA_USE_FB = 0x04,
532 _DRM_DMA_USE_PCI_RO = 0x08
537 typedef struct drm_agp_mem {
539 unsigned long bound; /* address */
541 struct drm_agp_mem *prev;
542 struct drm_agp_mem *next;
545 typedef struct drm_agp_head {
547 struct agp_info agp_info;
549 drm_agp_mem_t *memory;
555 int cant_use_aperture;
556 unsigned long page_mask;
559 typedef struct drm_sg_mem {
566 * Kernel side of a mapping
568 struct drm_local_map {
569 resource_size_t offset; /**< Requested physical address (0 for SAREA)*/
570 unsigned long size; /**< Requested physical size (bytes) */
571 enum drm_map_type type; /**< Type of memory to map */
572 enum drm_map_flags flags; /**< Flags */
573 void *handle; /**< User-space: "Handle" to pass to mmap() */
574 /**< Kernel-space: kernel-virtual address */
575 int mtrr; /**< MTRR slot used */
578 typedef struct drm_local_map drm_local_map_t;
583 struct drm_map_list {
584 struct list_head head; /**< list head */
585 struct drm_hash_item hash;
586 struct drm_local_map *map; /**< mapping */
588 struct drm_master *master;
589 struct drm_mm_node *file_offset_node; /**< fake offset */
592 struct drm_vblank_info {
593 wait_queue_head_t queue; /* vblank wait queue */
594 atomic_t count; /* number of VBLANK interrupts */
595 /* (driver must alloc the right number of counters) */
596 atomic_t refcount; /* number of users of vblank interrupts */
597 u32 last; /* protected by dev->vbl_lock, used */
598 /* for wraparound handling */
599 int enabled; /* so we don't call enable more than */
600 /* once per disable */
601 int inmodeset; /* Display driver is setting mode */
604 /* location of GART table */
605 #define DRM_ATI_GART_MAIN 1
606 #define DRM_ATI_GART_FB 2
608 #define DRM_ATI_GART_PCI 1
609 #define DRM_ATI_GART_PCIE 2
610 #define DRM_ATI_GART_IGP 3
612 struct drm_ati_pcigart_info {
613 int gart_table_location;
617 dma_addr_t table_mask;
618 dma_addr_t member_mask;
619 struct drm_dma_handle *table_handle;
620 drm_local_map_t mapping;
622 struct drm_dma_handle *dmah; /* handle for ATI PCIGART table */
626 * GEM specific mm private for tracking GEM objects
629 struct drm_open_hash offset_hash; /**< User token hash table for maps */
630 struct unrhdr *idxunr;
633 struct drm_gem_object {
634 /** Reference count of this object */
635 struct kref refcount;
637 /** Handle count of this object. Each handle also holds a reference */
638 atomic_t handle_count; /* number of handles on this object */
640 /** Related drm device */
641 struct drm_device *dev;
643 /** File representing the shmem storage: filp in Linux parlance */
647 struct drm_hash_item map_list;
650 * Size of the object, in bytes. Immutable over the object's
656 * Global name for this object, starts at 1. 0 means unnamed.
657 * Access is covered by the object_name_lock in the related drm_device
662 * Memory domains. These monitor which caches contain read/write data
663 * related to the object. When transitioning from one set of domains
664 * to another, the driver is called to ensure that caches are suitably
665 * flushed and invalidated
667 uint32_t read_domains;
668 uint32_t write_domain;
671 * While validating an exec operation, the
672 * new read/write domain values are computed here.
673 * They will be transferred to the above values
674 * at the point that any cache flushing occurs
676 uint32_t pending_read_domains;
677 uint32_t pending_write_domain;
679 void *driver_private;
682 /* dma buf exported from this GEM object */
683 struct dma_buf *export_dma_buf;
685 /* dma buf attachment backing this object */
686 struct dma_buf_attachment *import_attach;
687 #endif /* DUMBBELL_WIP */
690 #include "drm_crtc.h"
692 /* per-master structure */
695 struct kref refcount; /* refcount for this master */
697 struct list_head head; /**< each minor contains a list of masters */
698 struct drm_minor *minor; /**< link back to minor we are a master for */
700 char *unique; /**< Unique identifier: e.g., busid */
701 int unique_len; /**< Length of unique field */
702 int unique_size; /**< amount allocated */
704 int blocked; /**< Blocked due to VC switch? */
706 /** \name Authentication */
708 struct drm_open_hash magiclist;
709 struct list_head magicfree;
712 struct drm_lock_data lock; /**< Information on hardware lock */
714 void *driver_priv; /**< Private structure for driver to use */
717 /* Size of ringbuffer for vblank timestamps. Just double-buffer
718 * in initial implementation.
720 #define DRM_VBLANKTIME_RBSIZE 2
722 /* Flags and return codes for get_vblank_timestamp() driver function. */
723 #define DRM_CALLED_FROM_VBLIRQ 1
724 #define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0)
725 #define DRM_VBLANKTIME_INVBL (1 << 1)
727 /* get_scanout_position() return flags */
728 #define DRM_SCANOUTPOS_VALID (1 << 0)
729 #define DRM_SCANOUTPOS_INVBL (1 << 1)
730 #define DRM_SCANOUTPOS_ACCURATE (1 << 2)
733 #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1)
736 #define upper_32_bits(n) ((u32)(((n) >> 16) >> 16))
739 int (*load)(struct drm_device *, unsigned long flags);
740 int (*use_msi)(struct drm_device *, unsigned long flags);
741 int (*firstopen)(struct drm_device *);
742 int (*open)(struct drm_device *, struct drm_file *);
743 void (*preclose)(struct drm_device *, struct drm_file *file_priv);
744 void (*postclose)(struct drm_device *, struct drm_file *);
745 void (*lastclose)(struct drm_device *);
746 int (*unload)(struct drm_device *);
747 void (*reclaim_buffers_locked)(struct drm_device *,
748 struct drm_file *file_priv);
749 int (*dma_ioctl)(struct drm_device *dev, void *data,
750 struct drm_file *file_priv);
751 void (*dma_ready)(struct drm_device *);
752 int (*dma_quiescent)(struct drm_device *);
753 int (*dma_flush_block_and_flush)(struct drm_device *, int context,
754 enum drm_lock_flags flags);
755 int (*dma_flush_unblock)(struct drm_device *, int context,
756 enum drm_lock_flags flags);
757 int (*context_ctor)(struct drm_device *dev, int context);
758 int (*context_dtor)(struct drm_device *dev, int context);
759 int (*kernel_context_switch)(struct drm_device *dev, int old,
761 int (*kernel_context_switch_unlock)(struct drm_device *dev);
762 void (*irq_preinstall)(struct drm_device *dev);
763 int (*irq_postinstall)(struct drm_device *dev);
764 void (*irq_uninstall)(struct drm_device *dev);
765 void (*irq_handler)(DRM_IRQ_ARGS);
767 u32 (*get_vblank_counter)(struct drm_device *dev, int crtc);
768 int (*enable_vblank)(struct drm_device *dev, int crtc);
769 void (*disable_vblank)(struct drm_device *dev, int crtc);
770 int (*get_scanout_position)(struct drm_device *dev, int crtc,
771 int *vpos, int *hpos);
773 int (*get_vblank_timestamp)(struct drm_device *dev, int crtc,
774 int *max_error, struct timeval *vblank_time,
777 int (*gem_init_object)(struct drm_gem_object *obj);
778 void (*gem_free_object)(struct drm_gem_object *obj);
779 int (*gem_open_object)(struct drm_gem_object *, struct drm_file *);
780 void (*gem_close_object)(struct drm_gem_object *, struct drm_file *);
782 struct cdev_pager_ops *gem_pager_ops;
784 int (*dumb_create)(struct drm_file *file_priv,
785 struct drm_device *dev, struct drm_mode_create_dumb *args);
786 int (*dumb_map_offset)(struct drm_file *file_priv,
787 struct drm_device *dev, uint32_t handle, uint64_t *offset);
788 int (*dumb_destroy)(struct drm_file *file_priv,
789 struct drm_device *dev, uint32_t handle);
791 int (*sysctl_init)(struct drm_device *dev,
792 struct sysctl_ctx_list *ctx, struct sysctl_oid *top);
793 void (*sysctl_cleanup)(struct drm_device *dev);
795 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */
798 * Called by \c drm_device_is_agp. Typically used to determine if a
799 * card is really attached to AGP or not.
801 * \param dev DRM device handle
804 * One of three values is returned depending on whether or not the
805 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
806 * (return of 1), or may or may not be AGP (return of 2).
808 int (*device_is_agp) (struct drm_device * dev);
810 drm_ioctl_desc_t *ioctls;
811 #ifdef COMPAT_FREEBSD32
812 drm_ioctl_desc_t *compat_ioctls;
813 int *compat_ioctls_nr;
821 const char *name; /* Simple driver name */
822 const char *desc; /* Longer driver name */
823 const char *date; /* Date of last major changes. */
830 * DRM minor structure. This structure represents a drm minor number.
833 int index; /**< Minor device number */
834 int type; /**< Control or render */
835 device_t kdev; /**< OS device */
836 struct drm_device *dev;
838 struct drm_master *master; /* currently active master for this node */
839 struct list_head master_list;
840 struct drm_mode_group mode_group;
843 /* mode specified on the command line */
844 struct drm_cmdline_mode {
846 bool refresh_specified;
855 enum drm_connector_force force;
859 struct drm_pending_vblank_event {
860 struct drm_pending_event base;
862 struct drm_event_vblank event;
865 struct drm_sysctl_info {
866 struct sysctl_ctx_list ctx;
870 /* Length for the array of resource pointers for drm_get_resource_*. */
871 #define DRM_MAX_PCI_RESOURCE 6
874 * DRM device structure. This structure represent a complete card that
875 * may contain multiple heads.
878 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */
880 uint16_t pci_subdevice; /* PCI subsystem device id */
881 uint16_t pci_subvendor; /* PCI subsystem vendor id */
883 char *unique; /* Unique identifier: e.g., busid */
884 int unique_len; /* Length of unique field */
885 struct cdev *devnode; /* Device number for mknod */
886 int if_version; /* Highest interface version set */
888 int flags; /* Flags to open(2) */
891 struct spinlock dma_lock; /* protects dev->dma */
892 struct lwkt_serialize irq_lock; /* protects irq condition checks */
893 struct lock dev_lock; /* protects everything else */
897 struct lock struct_mutex; /**< For others */
900 /** \name Usage Counters */
902 int open_count; /* Outstanding files open */
903 int buf_use; /* Buffers in use -- cannot alloc */
907 /** \name Performance counters */
909 unsigned long counters;
910 enum drm_stat_type types[15];
915 drm_magic_head_t magiclist[DRM_HASH_SIZE];
917 struct list_head filelist;
919 /** \name Memory management */
921 struct list_head maplist; /**< Linked list of regions */
922 int map_count; /**< Number of mappable regions */
923 struct drm_open_hash map_hash; /**< User token hash table for maps */
925 drm_local_map_t **context_sareas;
928 struct drm_lock_data lock; /* Information on hardware lock */
930 /* DMA queues (contexts) */
931 drm_device_dma_t *dma; /* Optional pointer for DMA support */
933 /* Context support */
934 int irq; /* Interrupt used by board */
935 int msi_enabled; /* MSI enabled */
936 int irqrid; /* Interrupt used by board */
937 struct resource *irqr; /* Resource for interrupt used by board */
938 void *irqh; /* Handle from bus_setup_intr */
940 /* Storage of resource pointers for drm_get_resource_* */
941 struct resource *pcir[DRM_MAX_PCI_RESOURCE];
942 int pcirid[DRM_MAX_PCI_RESOURCE];
949 /** \name Context support */
951 int irq_enabled; /**< True if irq handler is enabled */
952 __volatile__ long context_flag; /**< Context swapping flag */
953 int last_context; /**< Last current context */
958 struct sigio *buf_sigio; /* Processes waiting for SIGIO */
961 struct drm_sysctl_info *sysctl;
965 drm_sg_mem_t *sg; /* Scatter gather memory */
966 unsigned long *ctx_bitmap;
972 * At load time, disabling the vblank interrupt won't be allowed since
973 * old clients may not call the modeset ioctl and therefore misbehave.
974 * Once the modeset ioctl *has* been called though, we can safely
975 * disable them when unused.
977 int vblank_disable_allowed;
979 wait_queue_head_t *vbl_queue; /**< VBLANK wait queue */
980 atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */
981 struct timeval *_vblank_time; /**< timestamp of current vblank_count (drivers must alloc right number of fields) */
982 struct lock vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */
983 struct lock vbl_lock;
984 atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */
985 u32 *last_vblank; /* protected by dev->vbl_lock, used */
986 /* for wraparound handling */
987 int *vblank_enabled; /* so we don't call enable more than
989 int *vblank_inmodeset; /* Display driver is setting mode */
990 u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */
991 struct timer_list vblank_disable_timer;
993 u32 max_vblank_count; /**< size of vblank counter register */
998 struct list_head vblank_event_list;
999 struct lock event_lock;
1003 struct drm_agp_head *agp; /**< AGP data */
1005 struct device *dev; /**< Device structure */
1006 struct pci_dev *pdev; /**< PCI device structure */
1007 int pci_vendor; /**< PCI vendor id */
1008 int pci_device; /**< PCI device id */
1010 struct drm_driver *driver;
1011 struct drm_local_map *agp_buffer_map;
1012 unsigned int agp_buffer_token;
1013 struct drm_minor *control; /**< Control node for card */
1014 struct drm_minor *primary; /**< render type primary screen head */
1016 struct drm_mode_config mode_config; /**< Current mode config */
1018 /** \name GEM information */
1020 struct lock object_name_lock;
1021 struct idr object_name_idr;
1025 void *sysctl_private;
1026 char busid_str[128];
1029 int switch_power_state;
1032 #define DRM_SWITCH_POWER_ON 0
1033 #define DRM_SWITCH_POWER_OFF 1
1034 #define DRM_SWITCH_POWER_CHANGING 2
1036 static __inline__ int drm_core_check_feature(struct drm_device *dev,
1039 return ((dev->driver->driver_features & feature) ? 1 : 0);
1043 static inline int drm_core_has_AGP(struct drm_device *dev)
1045 return drm_core_check_feature(dev, DRIVER_USE_AGP);
1048 #define drm_core_has_AGP(dev) (0)
1058 DMI_PRODUCT_VERSION,
1065 DMI_BOARD_ASSET_TAG,
1068 DMI_CHASSIS_VERSION,
1070 DMI_CHASSIS_ASSET_TAG,
1074 struct dmi_strmatch {
1079 struct dmi_system_id {
1080 int (*callback)(const struct dmi_system_id *);
1082 struct dmi_strmatch matches[4];
1084 #define DMI_MATCH(a, b) {(a), (b)}
1085 bool dmi_check_system(const struct dmi_system_id *);
1087 extern int drm_notyet_flag;
1088 extern int drm_debug;
1090 extern unsigned int drm_vblank_offdelay;
1091 extern unsigned int drm_timestamp_precision;
1092 extern unsigned int drm_timestamp_monotonic;
1094 /* Device setup support (drm_drv.c) */
1095 int drm_probe(device_t kdev, drm_pci_id_list_t *idlist);
1096 int drm_attach(device_t kdev, drm_pci_id_list_t *idlist);
1097 int drm_create_cdevs(device_t kdev);
1099 d_ioctl_t drm_ioctl;
1100 extern int drm_lastclose(struct drm_device *dev);
1102 /* Device support (drm_fops.h) */
1104 d_close_t drm_close;
1106 d_kqfilter_t drm_kqfilter;
1107 int drm_release(device_t kdev);
1110 d_mmap_single_t drm_mmap_single;
1111 extern drm_local_map_t *drm_getsarea(struct drm_device *dev);
1113 void drm_cdevpriv_dtor(void *cd);
1115 void drm_event_wakeup(struct drm_pending_event *e);
1117 int drm_add_busid_modesetting(struct drm_device *dev,
1118 struct sysctl_ctx_list *ctx, struct sysctl_oid *top);
1120 /* File operations helpers (drm_fops.c) */
1121 extern int drm_open_helper(struct cdev *kdev, int flags, int fmt,
1123 struct drm_device *dev,
1125 extern struct drm_file *drm_find_file_by_proc(struct drm_device *dev,
1129 extern int drm_gem_prime_handle_to_fd(struct drm_device *dev,
1130 struct drm_file *file_priv, uint32_t handle, uint32_t flags,
1132 extern int drm_gem_prime_fd_to_handle(struct drm_device *dev,
1133 struct drm_file *file_priv, int prime_fd, uint32_t *handle);
1135 extern int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data,
1136 struct drm_file *file_priv);
1137 extern int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data,
1138 struct drm_file *file_priv);
1145 extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, vm_page_t *pages,
1146 dma_addr_t *addrs, int max_pages);
1147 #endif /* DUMBBELL_WIP */
1148 extern struct sg_table *drm_prime_pages_to_sg(vm_page_t *pages, int nr_pages);
1149 extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg);
1152 void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv);
1153 void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv);
1154 int drm_prime_add_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t handle);
1155 int drm_prime_lookup_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t *handle);
1156 void drm_prime_remove_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf);
1158 int drm_prime_add_dma_buf(struct drm_device *dev, struct drm_gem_object *obj);
1159 int drm_prime_lookup_obj(struct drm_device *dev, struct dma_buf *buf,
1160 struct drm_gem_object **obj);
1161 #endif /* DUMBBELL_WIP */
1163 /* Memory management support (drm_memory.c) */
1164 void drm_mem_init(void);
1165 void drm_mem_uninit(void);
1166 void *drm_ioremap_wc(struct drm_device *dev, drm_local_map_t *map);
1167 void *drm_ioremap(struct drm_device *dev, drm_local_map_t *map);
1168 void drm_ioremapfree(drm_local_map_t *map);
1169 int drm_mtrr_add(unsigned long offset, size_t size, int flags);
1170 int drm_mtrr_del(int handle, unsigned long offset, size_t size, int flags);
1172 int drm_ctxbitmap_init(struct drm_device *dev);
1173 void drm_ctxbitmap_cleanup(struct drm_device *dev);
1174 void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
1175 int drm_ctxbitmap_next(struct drm_device *dev);
1177 /* Locking IOCTL support (drm_lock.c) */
1178 int drm_lock_take(struct drm_lock_data *lock_data,
1179 unsigned int context);
1180 int drm_lock_transfer(struct drm_lock_data *lock_data,
1181 unsigned int context);
1182 int drm_lock_free(struct drm_lock_data *lock_data,
1183 unsigned int context);
1186 * These are exported to drivers so that they can implement fencing using
1187 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
1190 unsigned long drm_get_resource_start(struct drm_device *dev,
1191 unsigned int resource);
1192 unsigned long drm_get_resource_len(struct drm_device *dev,
1193 unsigned int resource);
1194 void drm_rmmap(struct drm_device *dev, drm_local_map_t *map);
1195 int drm_order(unsigned long size);
1196 int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc *request);
1197 int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc *request);
1198 extern int drm_addmap(struct drm_device *dev, resource_size_t offset,
1199 unsigned int size, enum drm_map_type type,
1200 enum drm_map_flags flags, struct drm_local_map **map_ptr);
1202 /* DMA support (drm_dma.c) */
1203 int drm_dma_setup(struct drm_device *dev);
1204 void drm_dma_takedown(struct drm_device *dev);
1205 void drm_free_buffer(struct drm_device *dev, drm_buf_t *buf);
1206 void drm_reclaim_buffers(struct drm_device *dev, struct drm_file *file_priv);
1207 #define drm_core_reclaim_buffers drm_reclaim_buffers
1209 /* IRQ support (drm_irq.h) */
1210 int drm_irq_install(struct drm_device *dev);
1211 int drm_irq_uninstall(struct drm_device *dev);
1212 void drm_driver_irq_preinstall(struct drm_device *dev);
1213 void drm_driver_irq_postinstall(struct drm_device *dev);
1214 void drm_driver_irq_uninstall(struct drm_device *dev);
1216 void drm_vblank_pre_modeset(struct drm_device *dev, int crtc);
1217 void drm_vblank_post_modeset(struct drm_device *dev, int crtc);
1218 int drm_modeset_ctl(struct drm_device *dev, void *data,
1219 struct drm_file *file_priv);
1221 extern int drm_vblank_init(struct drm_device *dev, int num_crtcs);
1222 extern int drm_wait_vblank(struct drm_device *dev, void *data,
1223 struct drm_file *filp);
1224 extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq);
1225 extern u32 drm_vblank_count(struct drm_device *dev, int crtc);
1226 extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc,
1227 struct timeval *vblanktime);
1228 extern void drm_send_vblank_event(struct drm_device *dev, int crtc,
1229 struct drm_pending_vblank_event *e);
1230 extern bool drm_handle_vblank(struct drm_device *dev, int crtc);
1231 void drm_handle_vblank_events(struct drm_device *dev, int crtc);
1232 extern int drm_vblank_get(struct drm_device *dev, int crtc);
1233 extern void drm_vblank_put(struct drm_device *dev, int crtc);
1234 extern void drm_vblank_off(struct drm_device *dev, int crtc);
1235 extern void drm_vblank_cleanup(struct drm_device *dev);
1236 extern u32 drm_get_last_vbltimestamp(struct drm_device *dev, int crtc,
1237 struct timeval *tvblank, unsigned flags);
1238 extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev,
1239 int crtc, int *max_error,
1240 struct timeval *vblank_time,
1242 struct drm_crtc *refcrtc);
1243 extern void drm_calc_timestamping_constants(struct drm_crtc *crtc);
1245 /* AGP/PCI Express/GART support (drm_agpsupport.c) */
1246 int drm_device_is_agp(struct drm_device *dev);
1247 int drm_device_is_pcie(struct drm_device *dev);
1248 drm_agp_head_t *drm_agp_init(void);
1249 int drm_agp_acquire(struct drm_device *dev);
1250 int drm_agp_release(struct drm_device *dev);
1251 int drm_agp_info(struct drm_device * dev, struct drm_agp_info *info);
1252 int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode);
1253 void *drm_agp_allocate_memory(size_t pages, u32 type);
1254 int drm_agp_free_memory(void *handle);
1255 int drm_agp_bind_memory(void *handle, off_t start);
1256 int drm_agp_unbind_memory(void *handle);
1257 int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request);
1258 int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request);
1259 int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
1260 int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request);
1262 /* Scatter Gather Support (drm_scatter.c) */
1263 void drm_sg_cleanup(drm_sg_mem_t *entry);
1264 int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request);
1266 /* sysctl support (drm_sysctl.h) */
1267 extern int drm_sysctl_init(struct drm_device *dev);
1268 extern int drm_sysctl_cleanup(struct drm_device *dev);
1270 /* ATI PCIGART support (ati_pcigart.c) */
1271 int drm_ati_pcigart_init(struct drm_device *dev,
1272 struct drm_ati_pcigart_info *gart_info);
1273 int drm_ati_pcigart_cleanup(struct drm_device *dev,
1274 struct drm_ati_pcigart_info *gart_info);
1276 /* Cache management (drm_memory.c) */
1277 void drm_clflush_pages(vm_page_t *pages, unsigned long num_pages);
1279 /* Locking IOCTL support (drm_drv.c) */
1280 int drm_lock(struct drm_device *dev, void *data,
1281 struct drm_file *file_priv);
1282 int drm_unlock(struct drm_device *dev, void *data,
1283 struct drm_file *file_priv);
1284 int drm_version(struct drm_device *dev, void *data,
1285 struct drm_file *file_priv);
1286 int drm_setversion(struct drm_device *dev, void *data,
1287 struct drm_file *file_priv);
1289 /* Misc. IOCTL support (drm_ioctl.c) */
1290 int drm_irq_by_busid(struct drm_device *dev, void *data,
1291 struct drm_file *file_priv);
1292 int drm_getunique(struct drm_device *dev, void *data,
1293 struct drm_file *file_priv);
1294 int drm_setunique(struct drm_device *dev, void *data,
1295 struct drm_file *file_priv);
1296 int drm_getmap(struct drm_device *dev, void *data,
1297 struct drm_file *file_priv);
1298 int drm_getclient(struct drm_device *dev, void *data,
1299 struct drm_file *file_priv);
1300 int drm_getstats(struct drm_device *dev, void *data,
1301 struct drm_file *file_priv);
1302 int drm_getcap(struct drm_device *dev, void *data,
1303 struct drm_file *file_priv);
1304 int drm_noop(struct drm_device *dev, void *data,
1305 struct drm_file *file_priv);
1307 /* Context IOCTL support (drm_context.c) */
1308 int drm_resctx(struct drm_device *dev, void *data,
1309 struct drm_file *file_priv);
1310 int drm_addctx(struct drm_device *dev, void *data,
1311 struct drm_file *file_priv);
1312 int drm_modctx(struct drm_device *dev, void *data,
1313 struct drm_file *file_priv);
1314 int drm_getctx(struct drm_device *dev, void *data,
1315 struct drm_file *file_priv);
1316 int drm_switchctx(struct drm_device *dev, void *data,
1317 struct drm_file *file_priv);
1318 int drm_newctx(struct drm_device *dev, void *data,
1319 struct drm_file *file_priv);
1320 int drm_rmctx(struct drm_device *dev, void *data,
1321 struct drm_file *file_priv);
1322 int drm_setsareactx(struct drm_device *dev, void *data,
1323 struct drm_file *file_priv);
1324 int drm_getsareactx(struct drm_device *dev, void *data,
1325 struct drm_file *file_priv);
1327 /* Authentication IOCTL support (drm_auth.c) */
1328 int drm_getmagic(struct drm_device *dev, void *data,
1329 struct drm_file *file_priv);
1330 int drm_authmagic(struct drm_device *dev, void *data,
1331 struct drm_file *file_priv);
1333 /* Buffer management support (drm_bufs.c) */
1334 int drm_addmap_ioctl(struct drm_device *dev, void *data,
1335 struct drm_file *file_priv);
1336 int drm_rmmap_ioctl(struct drm_device *dev, void *data,
1337 struct drm_file *file_priv);
1338 int drm_addbufs(struct drm_device *dev, void *data,
1339 struct drm_file *file_priv);
1340 int drm_infobufs(struct drm_device *dev, void *data,
1341 struct drm_file *file_priv);
1342 int drm_markbufs(struct drm_device *dev, void *data,
1343 struct drm_file *file_priv);
1344 int drm_freebufs(struct drm_device *dev, void *data,
1345 struct drm_file *file_priv);
1346 int drm_mapbufs(struct drm_device *dev, void *data,
1347 struct drm_file *file_priv);
1349 /* DMA support (drm_dma.c) */
1350 int drm_dma(struct drm_device *dev, void *data, struct drm_file *file_priv);
1352 /* IRQ support (drm_irq.c) */
1353 int drm_control(struct drm_device *dev, void *data,
1354 struct drm_file *file_priv);
1356 /* AGP/GART support (drm_agpsupport.c) */
1357 int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
1358 struct drm_file *file_priv);
1359 int drm_agp_release_ioctl(struct drm_device *dev, void *data,
1360 struct drm_file *file_priv);
1361 int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
1362 struct drm_file *file_priv);
1363 int drm_agp_info_ioctl(struct drm_device *dev, void *data,
1364 struct drm_file *file_priv);
1365 int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
1366 struct drm_file *file_priv);
1367 int drm_agp_free_ioctl(struct drm_device *dev, void *data,
1368 struct drm_file *file_priv);
1369 int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
1370 struct drm_file *file_priv);
1371 int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
1372 struct drm_file *file_priv);
1374 /* Stub support (drm_stub.h) */
1375 extern int drm_setmaster_ioctl(struct drm_device *dev, void *data,
1376 struct drm_file *file_priv);
1377 extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
1378 struct drm_file *file_priv);
1380 /* Scatter Gather Support (drm_scatter.c) */
1381 int drm_sg_alloc_ioctl(struct drm_device *dev, void *data,
1382 struct drm_file *file_priv);
1383 int drm_sg_free(struct drm_device *dev, void *data,
1384 struct drm_file *file_priv);
1386 /* consistent PCI memory functions (drm_pci.c) */
1387 extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
1389 void drm_pci_free(struct drm_device *dev, drm_dma_handle_t *dmah);
1391 /* sysfs support (drm_sysfs.c) */
1392 extern char *drm_get_connector_status_name(enum drm_connector_status status);
1394 /* Graphics Execution Manager library functions (drm_gem.c) */
1395 int drm_gem_init(struct drm_device *dev);
1396 void drm_gem_destroy(struct drm_device *dev);
1397 void drm_gem_object_release(struct drm_gem_object *obj);
1398 void drm_gem_object_free(struct kref *kref);
1400 int drm_gem_close_ioctl(struct drm_device *dev, void *data,
1401 struct drm_file *file_priv);
1402 int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
1403 struct drm_file *file_priv);
1404 int drm_gem_open_ioctl(struct drm_device *dev, void *data,
1405 struct drm_file *file_priv);
1406 void drm_gem_object_handle_free(struct drm_gem_object *obj);
1408 #include <drm/drm_global.h>
1411 drm_gem_object_reference(struct drm_gem_object *obj)
1413 kref_get(&obj->refcount);
1417 drm_gem_object_unreference(struct drm_gem_object *obj)
1420 kref_put(&obj->refcount, drm_gem_object_free);
1424 drm_gem_object_unreference_unlocked(struct drm_gem_object *obj)
1427 struct drm_device *dev = obj->dev;
1429 kref_put(&obj->refcount, drm_gem_object_free);
1434 int drm_gem_handle_create(struct drm_file *file_priv,
1435 struct drm_gem_object *obj,
1437 int drm_gem_handle_delete(struct drm_file *filp, u32 handle);
1440 drm_gem_object_handle_reference(struct drm_gem_object *obj)
1442 drm_gem_object_reference(obj);
1443 atomic_inc(&obj->handle_count);
1447 drm_gem_object_handle_unreference(struct drm_gem_object *obj)
1452 if (atomic_read(&obj->handle_count) == 0)
1455 * Must bump handle count first as this may be the last
1456 * ref, in which case the object would disappear before we
1457 * checked for a name
1459 if (atomic_dec_and_test(&obj->handle_count))
1460 drm_gem_object_handle_free(obj);
1461 drm_gem_object_unreference(obj);
1465 drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj)
1470 if (atomic_read(&obj->handle_count) == 0)
1474 * Must bump handle count first as this may be the last
1475 * ref, in which case the object would disappear before we
1476 * checked for a name
1479 if (atomic_dec_and_test(&obj->handle_count))
1480 drm_gem_object_handle_free(obj);
1481 drm_gem_object_unreference_unlocked(obj);
1484 int drm_gem_object_init(struct drm_device *dev, struct drm_gem_object *obj,
1486 int drm_gem_private_object_init(struct drm_device *dev,
1487 struct drm_gem_object *obj, size_t size);
1488 struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev,
1490 struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev,
1491 struct drm_file *file_priv, uint32_t handle);
1493 void drm_gem_open(struct drm_device *dev, struct drm_file *file_priv);
1494 void drm_gem_release(struct drm_device *dev, struct drm_file *file_priv);
1496 int drm_gem_create_mmap_offset(struct drm_gem_object *obj);
1497 void drm_gem_free_mmap_offset(struct drm_gem_object *obj);
1498 int drm_gem_mmap_single(struct drm_device *dev, vm_ooffset_t *offset,
1499 vm_size_t size, struct vm_object **obj_res, int nprot);
1500 void drm_gem_pager_dtr(void *obj);
1502 struct ttm_bo_device;
1503 int ttm_bo_mmap_single(struct ttm_bo_device *bdev, vm_ooffset_t *offset,
1504 vm_size_t size, struct vm_object **obj_res, int nprot);
1505 struct ttm_buffer_object;
1506 void ttm_bo_release_mmap(struct ttm_buffer_object *bo);
1508 void drm_device_lock_mtx(struct drm_device *dev);
1509 void drm_device_unlock_mtx(struct drm_device *dev);
1510 int drm_device_sleep_mtx(struct drm_device *dev, void *chan, int flags,
1511 const char *msg, int timeout);
1512 void drm_device_assert_mtx_locked(struct drm_device *dev);
1513 void drm_device_assert_mtx_unlocked(struct drm_device *dev);
1515 void drm_device_lock_struct(struct drm_device *dev);
1516 void drm_device_unlock_struct(struct drm_device *dev);
1517 int drm_device_sleep_struct(struct drm_device *dev, void *chan, int flags,
1518 const char *msg, int timeout);
1519 void drm_device_assert_struct_locked(struct drm_device *dev);
1520 void drm_device_assert_struct_unlocked(struct drm_device *dev);
1522 void drm_compat_locking_init(struct drm_device *dev);
1523 void drm_sleep_locking_init(struct drm_device *dev);
1526 bool drm_mode_parse_command_line_for_connector(const char *mode_option,
1527 struct drm_connector *connector, struct drm_cmdline_mode *mode);
1528 struct drm_display_mode *drm_mode_create_from_cmdline_mode(
1529 struct drm_device *dev, struct drm_cmdline_mode *cmd);
1531 /* Inline replacements for drm_alloc and friends */
1532 static __inline__ void *
1533 drm_alloc(size_t size, struct malloc_type *area)
1535 return kmalloc(size, area, M_WAITOK | M_NULLOK);
1538 static __inline__ void *
1539 drm_calloc(size_t nmemb, size_t size, struct malloc_type *area)
1541 return kmalloc(size * nmemb, area, M_WAITOK | M_NULLOK | M_ZERO);
1544 static __inline__ void *
1545 drm_realloc(void *oldpt, size_t oldsize, size_t size,
1546 struct malloc_type *area)
1549 res = krealloc(oldpt, size, area, M_WAITOK | M_NULLOK);
1550 if (res == NULL && oldpt != NULL)
1555 static __inline__ void
1556 drm_free(void *pt, struct malloc_type *area)
1562 /* Inline replacements for DRM_IOREMAP macros */
1563 static __inline__ void
1564 drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev)
1566 map->handle = drm_ioremap_wc(dev, map);
1568 static __inline__ void
1569 drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev)
1571 map->handle = drm_ioremap(dev, map);
1573 static __inline__ void
1574 drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev)
1576 if ( map->handle && map->size )
1577 drm_ioremapfree(map);
1580 static __inline__ struct drm_local_map *
1581 drm_core_findmap(struct drm_device *dev, unsigned long offset)
1583 struct drm_map_list *_entry;
1585 list_for_each_entry(_entry, &dev->maplist, head) {
1586 if (offset == (unsigned long)_entry->map->handle)
1592 static __inline__ void drm_core_dropmap(struct drm_map *map)
1596 #include <drm/drm_mem_util.h>
1598 /* FreeBSD compatibility macros */
1599 #define VM_OBJECT_WLOCK(object) VM_OBJECT_LOCK(object)
1600 #define VM_OBJECT_WUNLOCK(object) VM_OBJECT_UNLOCK(object)
1602 #define DRM_PCIE_SPEED_25 1
1603 #define DRM_PCIE_SPEED_50 2
1604 #define DRM_PCIE_SPEED_80 4
1606 extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask);
1608 #define drm_can_sleep() (DRM_HZ & 1)
1610 #endif /* __KERNEL__ */
1611 #endif /* _DRM_P_H_ */