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.
38 #if defined(_KERNEL) || defined(__KERNEL__)
40 #include <sys/param.h>
41 #include <sys/queue.h>
42 #include <sys/malloc.h>
43 #include <sys/kernel.h>
45 #include <sys/module.h>
46 #include <sys/systm.h>
47 #include <sys/device.h>
48 #include <sys/sglist.h>
53 #include <sys/spinlock.h>
54 #include <sys/spinlock2.h>
55 #include <sys/fcntl.h>
57 #include <sys/filio.h>
58 #include <sys/sysctl.h>
60 #include <sys/queue.h>
61 #include <sys/signalvar.h>
64 #include <sys/taskqueue.h>
68 #include <vm/vm_extern.h>
69 #include <vm/vm_kern.h>
70 #include <vm/vm_map.h>
71 #include <vm/vm_object.h>
72 #include <vm/vm_page2.h>
73 #include <vm/vm_pager.h>
74 #include <vm/vm_param.h>
75 #include <machine/param.h>
76 #include <machine/pmap.h>
77 #if defined(__i386__) || defined(__amd64__)
78 #include <machine/specialreg.h>
80 #include <machine/sysarch.h>
81 #include <sys/endian.h>
84 #include <sys/memrange.h>
85 #include <dev/agp/agpvar.h>
86 #include <sys/agpio.h>
87 #include <sys/mutex.h>
88 #include <bus/pci/pcivar.h>
89 #include <bus/pci/pcireg.h>
91 MALLOC_DECLARE(M_DRM);
93 #include <uapi_drm/drm.h>
94 #include <uapi_drm/drm_sarea.h>
96 #include <linux/atomic.h>
97 #include <linux/bug.h>
98 #include <linux/err.h>
99 #include <linux/idr.h>
100 #include <linux/pci.h>
101 #include <linux/jiffies.h>
102 #include <linux/kernel.h>
103 #include <linux/kref.h>
104 #include <linux/list.h>
105 #include <linux/mm.h>
106 #include <linux/moduleparam.h>
107 #include <linux/mutex.h>
108 #include <linux/slab.h>
109 #include <linux/scatterlist.h>
110 #include <linux/timer.h>
112 #include <linux/types.h>
113 #include <linux/wait.h>
114 #include <linux/workqueue.h>
116 #include <asm/uaccess.h>
121 #include <drm/drm_os_linux.h>
122 #include <drm/drm_hashtab.h>
123 #include <drm/drm_mm.h>
125 #define DRM_UT_CORE 0x01
126 #define DRM_UT_DRIVER 0x02
127 #define DRM_UT_KMS 0x04
128 #define DRM_UT_PRIME 0x08
133 #define DRM_DEBUG_DEFAULT_ON 1
134 #endif /* DRM_DEBUG */
136 #define DRM_DEBUGBITS_DEBUG 0x1
137 #define DRM_DEBUGBITS_KMS 0x2
138 #define DRM_DEBUGBITS_FAILED_IOCTL 0x4
143 /***********************************************************************/
144 /** \name DRM template customization defaults */
147 /* driver capabilities and requirements mask */
148 #define DRIVER_USE_AGP 0x1
149 #define DRIVER_REQUIRE_AGP 0x2
150 #define DRIVER_USE_MTRR 0x4
151 #define DRIVER_PCI_DMA 0x8
152 #define DRIVER_SG 0x10
153 #define DRIVER_HAVE_DMA 0x20
154 #define DRIVER_HAVE_IRQ 0x40
155 #define DRIVER_IRQ_SHARED 0x80
156 #define DRIVER_IRQ_VBL 0x100
157 #define DRIVER_DMA_QUEUE 0x200
158 #define DRIVER_FB_DMA 0x400
159 #define DRIVER_IRQ_VBL2 0x800
160 #define DRIVER_GEM 0x1000
161 #define DRIVER_MODESET 0x2000
162 #define DRIVER_PRIME 0x4000
163 #define DRIVER_LOCKLESS_IRQ 0x8000
165 /***********************************************************************/
166 /** \name Begin the DRM... */
169 #define DRM_HASH_SIZE 16 /* Size of key hash table */
170 #define DRM_KERNEL_CONTEXT 0 /* Change drm_resctx if changed */
171 #define DRM_RESERVED_CONTEXTS 1 /* Change drm_resctx if changed */
173 #define DRM_GEM_MAPPING_MASK (3ULL << 62)
174 #define DRM_GEM_MAPPING_KEY (2ULL << 62) /* Non-canonical address form */
175 #define DRM_GEM_MAX_IDX 0x3fffff
176 #define DRM_GEM_MAPPING_IDX(o) (((o) >> 40) & DRM_GEM_MAX_IDX)
177 #define DRM_GEM_MAPPING_OFF(i) (((uint64_t)(i)) << 40)
178 #define DRM_GEM_MAPPING_MAPOFF(o) \
179 ((o) & ~(DRM_GEM_MAPPING_OFF(DRM_GEM_MAX_IDX) | DRM_GEM_MAPPING_KEY))
181 SYSCTL_DECL(_hw_drm);
183 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
185 /***********************************************************************/
186 /** \name Internal types and structures */
189 #define DRM_ARRAY_SIZE(x) NELEM(x)
190 #define DRM_MIN(a,b) ((a)<(b)?(a):(b))
191 #define DRM_MAX(a,b) ((a)>(b)?(a):(b))
193 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
195 #define __OS_HAS_AGP 1
197 #define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP)
198 #define DRM_DEV_UID 0
199 #define DRM_DEV_GID 0
201 #define DRM_WAKEUP(w) wakeup((void *)w)
202 #define DRM_WAKEUP_INT(w) wakeup(w)
203 #define DRM_INIT_WAITQUEUE(queue) do {(void)(queue);} while (0)
205 #define DRM_CURPROC curthread
206 #define DRM_STRUCTPROC struct thread
207 #define DRM_CURRENTPID (curproc != NULL ? curproc->p_pid : -1)
208 #define DRM_LOCK(dev) lockmgr(&(dev)->struct_mutex, LK_EXCLUSIVE)
209 #define DRM_UNLOCK(dev) lockmgr(&(dev)->struct_mutex, LK_RELEASE)
210 #define DRM_LOCK_SLEEP(dev, chan, flags, msg, timeout) \
211 (lksleep((chan), &(dev)->struct_mutex, (flags), (msg), (timeout)))
212 #if defined(INVARIANTS)
213 #define DRM_LOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->struct_mutex, curthread) != 0);
214 #define DRM_UNLOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->struct_mutex, curthread) == 0);
216 #define DRM_LOCK_ASSERT(d)
217 #define DRM_UNLOCK_ASSERT(d)
220 #define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS)
222 #define DRM_IRQ_ARGS void *arg
223 typedef void irqreturn_t;
224 #define IRQ_HANDLED /* nothing */
225 #define IRQ_NONE /* nothing */
232 #define DRM_AGP_MEM struct agp_memory_info
234 #define drm_get_device_from_kdev(_kdev) (_kdev->si_drv1)
236 /* DRM_SUSER returns true if the user is superuser */
237 #define DRM_SUSER(p) (priv_check(p, PRIV_DRIVER) == 0)
238 #define DRM_AGP_FIND_DEVICE() agp_find_device()
239 #define DRM_MTRR_WC MDF_WRITECOMBINE
241 /* DRM_READMEMORYBARRIER() prevents reordering of reads.
242 * DRM_WRITEMEMORYBARRIER() prevents reordering of writes.
243 * DRM_MEMORYBARRIER() prevents reordering of reads and writes.
245 #define DRM_READMEMORYBARRIER() cpu_lfence()
246 #define DRM_WRITEMEMORYBARRIER() cpu_sfence()
247 #define DRM_MEMORYBARRIER() cpu_mfence()
249 #define DRM_VERIFYAREA_READ( uaddr, size ) \
250 (!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ))
252 #define DRM_COPY_TO_USER(user, kern, size) \
253 copyout(kern, user, size)
254 #define DRM_COPY_FROM_USER(kern, user, size) \
255 copyin(user, kern, size)
256 #define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \
257 copyin(arg2, arg1, arg3)
258 #define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \
259 copyout(arg2, arg1, arg3)
260 #define DRM_GET_USER_UNCHECKED(val, uaddr) \
261 ((val) = fuword32(uaddr), 0)
263 #define drm_can_sleep() (DRM_HZ & 1)
265 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
266 (_map) = (_dev)->context_sareas[_ctx]; \
269 #define LOCK_TEST_WITH_RETURN(dev, file_priv) \
271 if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) || \
272 dev->lock.file_priv != file_priv) { \
273 DRM_ERROR("%s called without lock held\n", \
279 /* Returns -errno to shared code */
280 #define DRM_WAIT_ON( ret, queue, timeout, condition ) \
281 for ( ret = 0 ; !ret && !(condition) ; ) { \
283 lwkt_serialize_enter(&dev->irq_lock); \
284 if (!(condition)) { \
285 tsleep_interlock(&(queue), PCATCH); \
286 lwkt_serialize_exit(&dev->irq_lock); \
287 ret = -tsleep(&(queue), PCATCH | PINTERLOCKED, \
288 "drmwtq", (timeout)); \
290 lwkt_serialize_exit(&dev->irq_lock); \
296 vm_page_unhold_pages(vm_page_t *ma, int count)
300 for (i = 0; i < count; i++)
301 vm_page_unhold(ma[i]);
304 int vm_phys_fictitious_reg_range(vm_paddr_t start, vm_paddr_t end,
305 vm_memattr_t memattr);
306 void vm_phys_fictitious_unreg_range(vm_paddr_t start, vm_paddr_t end);
307 vm_page_t vm_phys_fictitious_to_vm_page(vm_paddr_t pa);
309 #define DRM_ERROR(fmt, ...) \
310 kprintf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \
311 DRM_CURRENTPID, __func__ , ##__VA_ARGS__)
313 #define DRM_INFO(fmt, ...) kprintf("info: [" DRM_NAME "] " fmt , ##__VA_ARGS__)
315 #define DRM_DEBUG(fmt, ...) do { \
316 if ((drm_debug & DRM_DEBUGBITS_DEBUG) != 0) \
317 kprintf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \
318 __func__ , ##__VA_ARGS__); \
321 #define DRM_DEBUG_KMS(fmt, ...) do { \
322 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \
323 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\
324 __func__ , ##__VA_ARGS__); \
327 #define DRM_DEBUG_DRIVER(fmt, ...) do { \
328 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \
329 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\
330 __func__ , ##__VA_ARGS__); \
333 #define DRM_LOG_KMS(fmt, ...) do { \
334 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID, \
335 __func__ , ##__VA_ARGS__); \
338 #define dev_dbg(dev, fmt, ...) do { \
339 if ((drm_debug& DRM_DEBUGBITS_KMS) != 0) { \
340 device_printf((dev), "debug: " fmt, ## __VA_ARGS__); \
344 typedef struct drm_pci_id_list
352 struct drm_msi_blacklist_entry
358 #define DRM_IOCTL_NR(n) ((n) & 0xff)
361 #define DRM_MASTER 0x2
362 #define DRM_ROOT_ONLY 0x4
363 #define DRM_CONTROL_ALLOW 0x8
364 #define DRM_UNLOCKED 0x10
366 typedef struct drm_ioctl_desc {
368 int (*func)(struct drm_device *dev, void *data,
369 struct drm_file *file_priv);
371 unsigned int cmd_drv;
375 * Creates a driver or general drm_ioctl_desc array entry for the given
376 * ioctl, for use by drm_ioctl().
378 #define DRM_IOCTL_DEF(ioctl, func, flags) \
379 [DRM_IOCTL_NR(ioctl)] = {ioctl, func, flags}
381 #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \
382 [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl}
384 typedef struct drm_magic_entry {
386 struct drm_file *priv;
387 struct drm_magic_entry *next;
390 typedef struct drm_magic_head {
391 struct drm_magic_entry *head;
392 struct drm_magic_entry *tail;
395 typedef struct drm_buf {
396 int idx; /**< Index into master buflist */
397 int total; /**< Buffer size */
398 int order; /**< log-base-2(total) */
399 int used; /**< Amount of buffer in use (for DMA) */
400 unsigned long offset; /**< Byte offset (used internally) */
401 void *address; /**< Address of buffer */
402 unsigned long bus_address; /**< Bus address of buffer */
403 struct drm_buf *next; /**< Kernel-only: used for free list */
404 __volatile__ int waiting; /**< On kernel DMA queue */
405 __volatile__ int pending; /**< On hardware DMA queue */
406 struct drm_file *file_priv; /**< Private of holding file descr */
407 int context; /**< Kernel queue for this buffer */
408 int while_locked; /**< Dispatch this buffer while locked */
416 } list; /**< Which list we're on */
418 int dev_priv_size; /**< Size of buffer private storage */
419 void *dev_private; /**< Per-buffer private storage */
422 struct drm_freelist {
423 int initialized; /* Freelist in use */
424 atomic_t count; /* Number of free buffers */
425 drm_buf_t *next; /* End pointer */
427 wait_queue_head_t waiting; /**< Processes waiting on free bufs */
428 int low_mark; /* Low water mark */
429 int high_mark; /* High water mark */
432 typedef struct drm_dma_handle {
439 typedef struct drm_buf_entry {
444 drm_dma_handle_t **seglist;
447 struct drm_freelist freelist;
450 /* Event queued up for userspace to read */
451 struct drm_pending_event {
452 struct drm_event *event;
453 struct list_head link;
454 struct drm_file *file_priv;
455 pid_t pid; /* pid of requester, no guarantee it's valid by the time
456 we deliver the event, for tracing only */
457 void (*destroy)(struct drm_pending_event *event);
460 /* initial implementaton using a linked list - todo hashtab */
461 struct drm_prime_file_private {
462 struct list_head head;
465 #endif /* DUMBBELL_WIP */
468 /** File private data */
471 struct drm_device *dev;
476 unsigned long ioctl_count;
477 struct list_head lhead;
480 /** Mapping of mm object handles to object pointers. */
481 struct idr object_idr;
482 /** Lock for synchronization of access to object_idr. */
483 struct lock table_lock;
488 struct drm_master *masterp;
491 * fbs - List of framebuffers associated with this file.
493 * Protected by fbs_lock. Note that the fbs list holds a reference on
494 * the fb object to prevent it from untimely disappearing.
496 struct list_head fbs;
497 struct lock fbs_lock;
499 wait_queue_head_t event_wait;
500 struct list_head event_list;
503 struct drm_prime_file_private prime;
509 struct drm_lock_data {
510 struct drm_hw_lock *hw_lock; /**< Hardware lock */
511 /** Private of lock holder's file (NULL=kernel) */
512 struct drm_file *file_priv;
513 wait_queue_head_t lock_queue; /**< Queue of blocked processes */
514 unsigned long lock_time; /**< Time of last lock in jiffies */
517 /* This structure, in the struct drm_device, is always initialized while the
519 * is open. dev->dma_lock protects the incrementing of dev->buf_use, which
520 * when set marks that no further bufs may be allocated until device teardown
521 * occurs (when the last open of the device has closed). The high/low
522 * watermarks of bufs are only touched by the X Server, and thus not
523 * concurrently accessed, so no locking is needed.
525 typedef struct drm_device_dma {
527 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */
528 int buf_count; /**< total number of buffers */
529 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */
531 int page_count; /**< number of pages */
532 unsigned long *pagelist; /**< page list */
533 unsigned long byte_count;
535 _DRM_DMA_USE_AGP = 0x01,
536 _DRM_DMA_USE_SG = 0x02,
537 _DRM_DMA_USE_FB = 0x04,
538 _DRM_DMA_USE_PCI_RO = 0x08
543 typedef struct drm_agp_mem {
545 unsigned long bound; /* address */
547 struct drm_agp_mem *prev;
548 struct drm_agp_mem *next;
551 typedef struct drm_agp_head {
553 struct agp_info agp_info;
555 drm_agp_mem_t *memory;
561 int cant_use_aperture;
562 unsigned long page_mask;
565 typedef struct drm_sg_mem {
572 * Kernel side of a mapping
574 struct drm_local_map {
575 resource_size_t offset; /**< Requested physical address (0 for SAREA)*/
576 unsigned long size; /**< Requested physical size (bytes) */
577 enum drm_map_type type; /**< Type of memory to map */
578 enum drm_map_flags flags; /**< Flags */
579 void *handle; /**< User-space: "Handle" to pass to mmap() */
580 /**< Kernel-space: kernel-virtual address */
581 int mtrr; /**< MTRR slot used */
584 typedef struct drm_local_map drm_local_map_t;
589 struct drm_map_list {
590 struct list_head head; /**< list head */
591 struct drm_hash_item hash;
592 struct drm_local_map *map; /**< mapping */
594 struct drm_master *master;
595 struct drm_mm_node *file_offset_node; /**< fake offset */
599 * Context handle list
601 struct drm_ctx_list {
602 struct list_head head; /**< list head */
603 drm_context_t handle; /**< context handle */
604 struct drm_file *tag; /**< associated fd private data */
607 struct drm_vblank_info {
608 wait_queue_head_t queue; /* vblank wait queue */
609 atomic_t count; /* number of VBLANK interrupts */
610 /* (driver must alloc the right number of counters) */
611 atomic_t refcount; /* number of users of vblank interrupts */
612 u32 last; /* protected by dev->vbl_lock, used */
613 /* for wraparound handling */
614 int enabled; /* so we don't call enable more than */
615 /* once per disable */
616 int inmodeset; /* Display driver is setting mode */
619 /* location of GART table */
620 #define DRM_ATI_GART_MAIN 1
621 #define DRM_ATI_GART_FB 2
623 #define DRM_ATI_GART_PCI 1
624 #define DRM_ATI_GART_PCIE 2
625 #define DRM_ATI_GART_IGP 3
627 struct drm_ati_pcigart_info {
628 int gart_table_location;
632 dma_addr_t table_mask;
633 dma_addr_t member_mask;
634 struct drm_dma_handle *table_handle;
635 drm_local_map_t mapping;
637 struct drm_dma_handle *dmah; /* handle for ATI PCIGART table */
641 * GEM specific mm private for tracking GEM objects
644 struct drm_mm offset_manager; /**< Offset mgmt for buffer objects */
645 struct drm_open_hash offset_hash; /**< User token hash table for maps */
646 struct unrhdr *idxunr;
649 struct drm_gem_object {
650 /** Reference count of this object */
651 struct kref refcount;
653 /** Handle count of this object. Each handle also holds a reference */
654 atomic_t handle_count; /* number of handles on this object */
656 /** Related drm device */
657 struct drm_device *dev;
659 /** File representing the shmem storage: filp in Linux parlance */
663 struct drm_hash_item map_list;
666 * Size of the object, in bytes. Immutable over the object's
672 * Global name for this object, starts at 1. 0 means unnamed.
673 * Access is covered by the object_name_lock in the related drm_device
678 * Memory domains. These monitor which caches contain read/write data
679 * related to the object. When transitioning from one set of domains
680 * to another, the driver is called to ensure that caches are suitably
681 * flushed and invalidated
683 uint32_t read_domains;
684 uint32_t write_domain;
687 * While validating an exec operation, the
688 * new read/write domain values are computed here.
689 * They will be transferred to the above values
690 * at the point that any cache flushing occurs
692 uint32_t pending_read_domains;
693 uint32_t pending_write_domain;
695 void *driver_private;
698 /* dma buf exported from this GEM object */
699 struct dma_buf *export_dma_buf;
701 /* dma buf attachment backing this object */
702 struct dma_buf_attachment *import_attach;
703 #endif /* DUMBBELL_WIP */
706 #include "drm_crtc.h"
708 /* per-master structure */
711 struct kref refcount; /* refcount for this master */
713 struct list_head head; /**< each minor contains a list of masters */
714 struct drm_minor *minor; /**< link back to minor we are a master for */
716 char *unique; /**< Unique identifier: e.g., busid */
717 int unique_len; /**< Length of unique field */
718 int unique_size; /**< amount allocated */
720 int blocked; /**< Blocked due to VC switch? */
722 /** \name Authentication */
724 struct drm_open_hash magiclist;
725 struct list_head magicfree;
728 struct drm_lock_data lock; /**< Information on hardware lock */
730 void *driver_priv; /**< Private structure for driver to use */
733 /* Size of ringbuffer for vblank timestamps. Just double-buffer
734 * in initial implementation.
736 #define DRM_VBLANKTIME_RBSIZE 2
738 /* Flags and return codes for get_vblank_timestamp() driver function. */
739 #define DRM_CALLED_FROM_VBLIRQ 1
740 #define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0)
741 #define DRM_VBLANKTIME_INVBL (1 << 1)
743 /* get_scanout_position() return flags */
744 #define DRM_SCANOUTPOS_VALID (1 << 0)
745 #define DRM_SCANOUTPOS_INVBL (1 << 1)
746 #define DRM_SCANOUTPOS_ACCURATE (1 << 2)
749 #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1)
752 #define upper_32_bits(n) ((u32)(((n) >> 16) >> 16))
755 int (*load)(struct drm_device *, unsigned long flags);
756 int (*use_msi)(struct drm_device *, unsigned long flags);
757 int (*firstopen)(struct drm_device *);
758 int (*open)(struct drm_device *, struct drm_file *);
759 void (*preclose)(struct drm_device *, struct drm_file *file_priv);
760 void (*postclose)(struct drm_device *, struct drm_file *);
761 void (*lastclose)(struct drm_device *);
762 int (*unload)(struct drm_device *);
763 void (*reclaim_buffers_locked)(struct drm_device *,
764 struct drm_file *file_priv);
765 int (*dma_ioctl)(struct drm_device *dev, void *data,
766 struct drm_file *file_priv);
767 void (*dma_ready)(struct drm_device *);
768 int (*dma_quiescent)(struct drm_device *);
769 int (*dma_flush_block_and_flush)(struct drm_device *, int context,
770 enum drm_lock_flags flags);
771 int (*dma_flush_unblock)(struct drm_device *, int context,
772 enum drm_lock_flags flags);
773 int (*context_ctor)(struct drm_device *dev, int context);
774 int (*context_dtor)(struct drm_device *dev, int context);
775 int (*kernel_context_switch)(struct drm_device *dev, int old,
777 int (*kernel_context_switch_unlock)(struct drm_device *dev);
778 void (*irq_preinstall)(struct drm_device *dev);
779 int (*irq_postinstall)(struct drm_device *dev);
780 void (*irq_uninstall)(struct drm_device *dev);
781 void (*irq_handler)(DRM_IRQ_ARGS);
783 u32 (*get_vblank_counter)(struct drm_device *dev, int crtc);
784 int (*enable_vblank)(struct drm_device *dev, int crtc);
785 void (*disable_vblank)(struct drm_device *dev, int crtc);
786 int (*get_scanout_position)(struct drm_device *dev, int crtc,
787 int *vpos, int *hpos);
789 int (*get_vblank_timestamp)(struct drm_device *dev, int crtc,
790 int *max_error, struct timeval *vblank_time,
793 int (*gem_init_object)(struct drm_gem_object *obj);
794 void (*gem_free_object)(struct drm_gem_object *obj);
795 int (*gem_open_object)(struct drm_gem_object *, struct drm_file *);
796 void (*gem_close_object)(struct drm_gem_object *, struct drm_file *);
798 struct cdev_pager_ops *gem_pager_ops;
800 int (*dumb_create)(struct drm_file *file_priv,
801 struct drm_device *dev, struct drm_mode_create_dumb *args);
802 int (*dumb_map_offset)(struct drm_file *file_priv,
803 struct drm_device *dev, uint32_t handle, uint64_t *offset);
804 int (*dumb_destroy)(struct drm_file *file_priv,
805 struct drm_device *dev, uint32_t handle);
807 int (*sysctl_init)(struct drm_device *dev,
808 struct sysctl_ctx_list *ctx, struct sysctl_oid *top);
809 void (*sysctl_cleanup)(struct drm_device *dev);
811 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */
814 * Called by \c drm_device_is_agp. Typically used to determine if a
815 * card is really attached to AGP or not.
817 * \param dev DRM device handle
820 * One of three values is returned depending on whether or not the
821 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
822 * (return of 1), or may or may not be AGP (return of 2).
824 int (*device_is_agp) (struct drm_device * dev);
826 drm_ioctl_desc_t *ioctls;
827 #ifdef COMPAT_FREEBSD32
828 drm_ioctl_desc_t *compat_ioctls;
829 int *compat_ioctls_nr;
837 const char *name; /* Simple driver name */
838 const char *desc; /* Longer driver name */
839 const char *date; /* Date of last major changes. */
846 * DRM minor structure. This structure represents a drm minor number.
849 int index; /**< Minor device number */
850 int type; /**< Control or render */
851 device_t kdev; /**< OS device */
852 struct drm_device *dev;
854 struct drm_master *master; /* currently active master for this node */
855 struct list_head master_list;
856 struct drm_mode_group mode_group;
859 /* mode specified on the command line */
860 struct drm_cmdline_mode {
862 bool refresh_specified;
871 enum drm_connector_force force;
875 struct drm_pending_vblank_event {
876 struct drm_pending_event base;
878 struct drm_event_vblank event;
881 struct drm_sysctl_info {
882 struct sysctl_ctx_list ctx;
886 /* Length for the array of resource pointers for drm_get_resource_*. */
887 #define DRM_MAX_PCI_RESOURCE 6
890 * DRM device structure. This structure represent a complete card that
891 * may contain multiple heads.
894 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */
896 uint16_t pci_subdevice; /* PCI subsystem device id */
897 uint16_t pci_subvendor; /* PCI subsystem vendor id */
899 char *unique; /* Unique identifier: e.g., busid */
900 int unique_len; /* Length of unique field */
901 struct cdev *devnode; /* Device number for mknod */
902 int if_version; /* Highest interface version set */
904 int flags; /* Flags to open(2) */
907 struct spinlock dma_lock; /* protects dev->dma */
908 struct lwkt_serialize irq_lock; /* protects irq condition checks */
909 struct lock dev_lock; /* protects everything else */
913 struct lock struct_mutex; /**< For others */
916 /** \name Usage Counters */
918 int open_count; /* Outstanding files open */
919 int buf_use; /* Buffers in use -- cannot alloc */
923 /** \name Performance counters */
925 unsigned long counters;
926 enum drm_stat_type types[15];
931 drm_magic_head_t magiclist[DRM_HASH_SIZE];
933 struct list_head filelist;
935 /** \name Memory management */
937 struct list_head maplist; /**< Linked list of regions */
938 int map_count; /**< Number of mappable regions */
939 struct drm_open_hash map_hash; /**< User token hash table for maps */
941 /** \name Context handle management */
943 struct list_head ctxlist; /**< Linked list of context handles */
944 int ctx_count; /**< Number of context handles */
945 struct lock ctxlist_mutex; /**< For ctxlist */
951 struct drm_lock_data lock; /* Information on hardware lock */
953 /* DMA queues (contexts) */
954 drm_device_dma_t *dma; /* Optional pointer for DMA support */
956 int irq; /* Interrupt used by board */
957 int msi_enabled; /* MSI enabled */
958 int irqrid; /* Interrupt used by board */
959 struct resource *irqr; /* Resource for interrupt used by board */
960 void *irqh; /* Handle from bus_setup_intr */
962 /* Storage of resource pointers for drm_get_resource_* */
963 struct resource *pcir[DRM_MAX_PCI_RESOURCE];
964 int pcirid[DRM_MAX_PCI_RESOURCE];
971 /** \name Context support */
973 int irq_enabled; /**< True if irq handler is enabled */
974 __volatile__ long context_flag; /**< Context swapping flag */
975 __volatile__ long interrupt_flag; /**< Interruption handler flag */
976 __volatile__ long dma_flag; /**< DMA dispatch flag */
977 wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */
978 int last_checked; /**< Last context checked for DMA */
979 int last_context; /**< Last current context */
980 unsigned long last_switch; /**< jiffies at last context switch */
985 struct sigio *buf_sigio; /* Processes waiting for SIGIO */
988 struct drm_sysctl_info *sysctl;
992 drm_sg_mem_t *sg; /* Scatter gather memory */
993 unsigned long *ctx_bitmap;
999 * At load time, disabling the vblank interrupt won't be allowed since
1000 * old clients may not call the modeset ioctl and therefore misbehave.
1001 * Once the modeset ioctl *has* been called though, we can safely
1002 * disable them when unused.
1004 int vblank_disable_allowed;
1006 wait_queue_head_t *vbl_queue; /**< VBLANK wait queue */
1007 atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */
1008 struct timeval *_vblank_time; /**< timestamp of current vblank_count (drivers must alloc right number of fields) */
1009 struct lock vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */
1010 struct lock vbl_lock;
1011 atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */
1012 u32 *last_vblank; /* protected by dev->vbl_lock, used */
1013 /* for wraparound handling */
1014 int *vblank_enabled; /* so we don't call enable more than
1016 int *vblank_inmodeset; /* Display driver is setting mode */
1017 u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */
1018 struct timer_list vblank_disable_timer;
1020 u32 max_vblank_count; /**< size of vblank counter register */
1025 struct list_head vblank_event_list;
1026 struct lock event_lock;
1030 struct drm_agp_head *agp; /**< AGP data */
1032 struct device *dev; /**< Device structure */
1033 struct pci_dev *pdev; /**< PCI device structure */
1034 int pci_vendor; /**< PCI vendor id */
1035 int pci_device; /**< PCI device id */
1037 struct drm_driver *driver;
1038 struct drm_local_map *agp_buffer_map;
1039 unsigned int agp_buffer_token;
1040 struct drm_minor *control; /**< Control node for card */
1041 struct drm_minor *primary; /**< render type primary screen head */
1043 struct drm_mode_config mode_config; /**< Current mode config */
1045 /** \name GEM information */
1047 struct lock object_name_lock;
1048 struct idr object_name_idr;
1052 void *sysctl_private;
1053 char busid_str[128];
1056 int switch_power_state;
1059 #define DRM_SWITCH_POWER_ON 0
1060 #define DRM_SWITCH_POWER_OFF 1
1061 #define DRM_SWITCH_POWER_CHANGING 2
1063 static __inline__ int drm_core_check_feature(struct drm_device *dev,
1066 return ((dev->driver->driver_features & feature) ? 1 : 0);
1070 static inline int drm_core_has_AGP(struct drm_device *dev)
1072 return drm_core_check_feature(dev, DRIVER_USE_AGP);
1075 #define drm_core_has_AGP(dev) (0)
1085 DMI_PRODUCT_VERSION,
1092 DMI_BOARD_ASSET_TAG,
1095 DMI_CHASSIS_VERSION,
1097 DMI_CHASSIS_ASSET_TAG,
1101 struct dmi_strmatch {
1106 struct dmi_system_id {
1107 int (*callback)(const struct dmi_system_id *);
1109 struct dmi_strmatch matches[4];
1111 #define DMI_MATCH(a, b) {(a), (b)}
1112 bool dmi_check_system(const struct dmi_system_id *);
1114 extern int drm_notyet_flag;
1115 extern int drm_debug;
1117 extern unsigned int drm_vblank_offdelay;
1118 extern unsigned int drm_timestamp_precision;
1119 extern unsigned int drm_timestamp_monotonic;
1121 /* Device setup support (drm_drv.c) */
1122 int drm_probe(device_t kdev, drm_pci_id_list_t *idlist);
1123 int drm_attach(device_t kdev, drm_pci_id_list_t *idlist);
1124 int drm_create_cdevs(device_t kdev);
1126 d_ioctl_t drm_ioctl;
1127 extern int drm_lastclose(struct drm_device *dev);
1129 /* Device support (drm_fops.h) */
1131 d_close_t drm_close;
1133 d_kqfilter_t drm_kqfilter;
1134 int drm_release(device_t kdev);
1137 d_mmap_single_t drm_mmap_single;
1138 extern drm_local_map_t *drm_getsarea(struct drm_device *dev);
1140 void drm_cdevpriv_dtor(void *cd);
1142 void drm_event_wakeup(struct drm_pending_event *e);
1144 int drm_add_busid_modesetting(struct drm_device *dev,
1145 struct sysctl_ctx_list *ctx, struct sysctl_oid *top);
1147 /* File operations helpers (drm_fops.c) */
1148 extern int drm_open_helper(struct cdev *kdev, int flags, int fmt,
1150 struct drm_device *dev,
1152 extern struct drm_file *drm_find_file_by_proc(struct drm_device *dev,
1156 extern int drm_gem_prime_handle_to_fd(struct drm_device *dev,
1157 struct drm_file *file_priv, uint32_t handle, uint32_t flags,
1159 extern int drm_gem_prime_fd_to_handle(struct drm_device *dev,
1160 struct drm_file *file_priv, int prime_fd, uint32_t *handle);
1162 extern int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data,
1163 struct drm_file *file_priv);
1164 extern int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data,
1165 struct drm_file *file_priv);
1172 extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, vm_page_t *pages,
1173 dma_addr_t *addrs, int max_pages);
1174 #endif /* DUMBBELL_WIP */
1175 extern struct sg_table *drm_prime_pages_to_sg(vm_page_t *pages, int nr_pages);
1176 extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg);
1179 void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv);
1180 void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv);
1181 int drm_prime_add_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t handle);
1182 int drm_prime_lookup_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t *handle);
1183 void drm_prime_remove_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf);
1185 int drm_prime_add_dma_buf(struct drm_device *dev, struct drm_gem_object *obj);
1186 int drm_prime_lookup_obj(struct drm_device *dev, struct dma_buf *buf,
1187 struct drm_gem_object **obj);
1188 #endif /* DUMBBELL_WIP */
1190 /* Memory management support (drm_memory.h) */
1191 #include <drm/drm_memory.h>
1192 void drm_mem_init(void);
1193 void drm_mem_uninit(void);
1194 void *drm_ioremap_wc(struct drm_device *dev, drm_local_map_t *map);
1195 void *drm_ioremap(struct drm_device *dev, drm_local_map_t *map);
1196 void drm_ioremapfree(drm_local_map_t *map);
1197 int drm_mtrr_add(unsigned long offset, size_t size, int flags);
1198 int drm_mtrr_del(int handle, unsigned long offset, size_t size, int flags);
1200 int drm_ctxbitmap_init(struct drm_device *dev);
1201 void drm_ctxbitmap_cleanup(struct drm_device *dev);
1202 void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
1204 /* Locking IOCTL support (drm_lock.c) */
1205 int drm_lock_take(struct drm_lock_data *lock_data,
1206 unsigned int context);
1207 int drm_lock_transfer(struct drm_lock_data *lock_data,
1208 unsigned int context);
1209 int drm_lock_free(struct drm_lock_data *lock_data,
1210 unsigned int context);
1213 * These are exported to drivers so that they can implement fencing using
1214 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
1217 unsigned long drm_get_resource_start(struct drm_device *dev,
1218 unsigned int resource);
1219 unsigned long drm_get_resource_len(struct drm_device *dev,
1220 unsigned int resource);
1221 void drm_rmmap(struct drm_device *dev, drm_local_map_t *map);
1222 int drm_order(unsigned long size);
1223 int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc *request);
1224 int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc *request);
1225 extern int drm_addmap(struct drm_device *dev, resource_size_t offset,
1226 unsigned int size, enum drm_map_type type,
1227 enum drm_map_flags flags, struct drm_local_map **map_ptr);
1229 /* DMA support (drm_dma.c) */
1230 int drm_dma_setup(struct drm_device *dev);
1231 void drm_dma_takedown(struct drm_device *dev);
1232 void drm_free_buffer(struct drm_device *dev, drm_buf_t *buf);
1233 void drm_reclaim_buffers(struct drm_device *dev, struct drm_file *file_priv);
1234 #define drm_core_reclaim_buffers drm_reclaim_buffers
1236 /* IRQ support (drm_irq.h) */
1237 int drm_irq_install(struct drm_device *dev);
1238 int drm_irq_uninstall(struct drm_device *dev);
1239 void drm_driver_irq_preinstall(struct drm_device *dev);
1240 void drm_driver_irq_postinstall(struct drm_device *dev);
1241 void drm_driver_irq_uninstall(struct drm_device *dev);
1243 void drm_vblank_pre_modeset(struct drm_device *dev, int crtc);
1244 void drm_vblank_post_modeset(struct drm_device *dev, int crtc);
1245 int drm_modeset_ctl(struct drm_device *dev, void *data,
1246 struct drm_file *file_priv);
1248 extern int drm_vblank_init(struct drm_device *dev, int num_crtcs);
1249 extern int drm_wait_vblank(struct drm_device *dev, void *data,
1250 struct drm_file *filp);
1251 extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq);
1252 extern u32 drm_vblank_count(struct drm_device *dev, int crtc);
1253 extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc,
1254 struct timeval *vblanktime);
1255 extern void drm_send_vblank_event(struct drm_device *dev, int crtc,
1256 struct drm_pending_vblank_event *e);
1257 extern bool drm_handle_vblank(struct drm_device *dev, int crtc);
1258 void drm_handle_vblank_events(struct drm_device *dev, int crtc);
1259 extern int drm_vblank_get(struct drm_device *dev, int crtc);
1260 extern void drm_vblank_put(struct drm_device *dev, int crtc);
1261 extern void drm_vblank_off(struct drm_device *dev, int crtc);
1262 extern void drm_vblank_cleanup(struct drm_device *dev);
1263 extern u32 drm_get_last_vbltimestamp(struct drm_device *dev, int crtc,
1264 struct timeval *tvblank, unsigned flags);
1265 extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev,
1266 int crtc, int *max_error,
1267 struct timeval *vblank_time,
1269 struct drm_crtc *refcrtc);
1270 extern void drm_calc_timestamping_constants(struct drm_crtc *crtc);
1272 /* AGP/PCI Express/GART support (drm_agpsupport.c) */
1273 int drm_device_is_agp(struct drm_device *dev);
1274 int drm_device_is_pcie(struct drm_device *dev);
1275 drm_agp_head_t *drm_agp_init(void);
1276 int drm_agp_acquire(struct drm_device *dev);
1277 int drm_agp_release(struct drm_device *dev);
1278 int drm_agp_info(struct drm_device * dev, struct drm_agp_info *info);
1279 int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode);
1280 void *drm_agp_allocate_memory(size_t pages, u32 type);
1281 int drm_agp_free_memory(void *handle);
1282 int drm_agp_bind_memory(void *handle, off_t start);
1283 int drm_agp_unbind_memory(void *handle);
1284 int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request);
1285 int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request);
1286 int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
1287 int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request);
1289 /* Scatter Gather Support (drm_scatter.c) */
1290 void drm_sg_cleanup(drm_sg_mem_t *entry);
1291 int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request);
1293 /* sysctl support (drm_sysctl.h) */
1294 extern int drm_sysctl_init(struct drm_device *dev);
1295 extern int drm_sysctl_cleanup(struct drm_device *dev);
1297 /* ATI PCIGART support (ati_pcigart.c) */
1298 int drm_ati_pcigart_init(struct drm_device *dev,
1299 struct drm_ati_pcigart_info *gart_info);
1300 int drm_ati_pcigart_cleanup(struct drm_device *dev,
1301 struct drm_ati_pcigart_info *gart_info);
1303 /* Cache management (drm_memory.c) */
1304 void drm_clflush_pages(vm_page_t *pages, unsigned long num_pages);
1306 /* Locking IOCTL support (drm_drv.c) */
1307 int drm_lock(struct drm_device *dev, void *data,
1308 struct drm_file *file_priv);
1309 int drm_unlock(struct drm_device *dev, void *data,
1310 struct drm_file *file_priv);
1311 int drm_version(struct drm_device *dev, void *data,
1312 struct drm_file *file_priv);
1313 int drm_setversion(struct drm_device *dev, void *data,
1314 struct drm_file *file_priv);
1316 /* Misc. IOCTL support (drm_ioctl.c) */
1317 int drm_irq_by_busid(struct drm_device *dev, void *data,
1318 struct drm_file *file_priv);
1319 int drm_getunique(struct drm_device *dev, void *data,
1320 struct drm_file *file_priv);
1321 int drm_setunique(struct drm_device *dev, void *data,
1322 struct drm_file *file_priv);
1323 int drm_getmap(struct drm_device *dev, void *data,
1324 struct drm_file *file_priv);
1325 int drm_getclient(struct drm_device *dev, void *data,
1326 struct drm_file *file_priv);
1327 int drm_getstats(struct drm_device *dev, void *data,
1328 struct drm_file *file_priv);
1329 int drm_getcap(struct drm_device *dev, void *data,
1330 struct drm_file *file_priv);
1331 int drm_noop(struct drm_device *dev, void *data,
1332 struct drm_file *file_priv);
1334 /* Context IOCTL support (drm_context.c) */
1335 int drm_resctx(struct drm_device *dev, void *data,
1336 struct drm_file *file_priv);
1337 int drm_addctx(struct drm_device *dev, void *data,
1338 struct drm_file *file_priv);
1339 int drm_modctx(struct drm_device *dev, void *data,
1340 struct drm_file *file_priv);
1341 int drm_getctx(struct drm_device *dev, void *data,
1342 struct drm_file *file_priv);
1343 int drm_switchctx(struct drm_device *dev, void *data,
1344 struct drm_file *file_priv);
1345 int drm_newctx(struct drm_device *dev, void *data,
1346 struct drm_file *file_priv);
1347 int drm_rmctx(struct drm_device *dev, void *data,
1348 struct drm_file *file_priv);
1349 int drm_setsareactx(struct drm_device *dev, void *data,
1350 struct drm_file *file_priv);
1351 int drm_getsareactx(struct drm_device *dev, void *data,
1352 struct drm_file *file_priv);
1354 /* Authentication IOCTL support (drm_auth.c) */
1355 int drm_getmagic(struct drm_device *dev, void *data,
1356 struct drm_file *file_priv);
1357 int drm_authmagic(struct drm_device *dev, void *data,
1358 struct drm_file *file_priv);
1360 /* Cache management (drm_cache.c) */
1361 void drm_clflush_virt_range(char *addr, unsigned long length);
1363 /* Buffer management support (drm_bufs.c) */
1364 int drm_addmap_ioctl(struct drm_device *dev, void *data,
1365 struct drm_file *file_priv);
1366 int drm_rmmap_ioctl(struct drm_device *dev, void *data,
1367 struct drm_file *file_priv);
1368 int drm_addbufs(struct drm_device *dev, void *data,
1369 struct drm_file *file_priv);
1370 int drm_infobufs(struct drm_device *dev, void *data,
1371 struct drm_file *file_priv);
1372 int drm_markbufs(struct drm_device *dev, void *data,
1373 struct drm_file *file_priv);
1374 int drm_freebufs(struct drm_device *dev, void *data,
1375 struct drm_file *file_priv);
1376 int drm_mapbufs(struct drm_device *dev, void *data,
1377 struct drm_file *file_priv);
1379 /* DMA support (drm_dma.c) */
1380 int drm_dma(struct drm_device *dev, void *data, struct drm_file *file_priv);
1382 /* IRQ support (drm_irq.c) */
1383 int drm_control(struct drm_device *dev, void *data,
1384 struct drm_file *file_priv);
1386 /* AGP/GART support (drm_agpsupport.c) */
1387 int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
1388 struct drm_file *file_priv);
1389 int drm_agp_release_ioctl(struct drm_device *dev, void *data,
1390 struct drm_file *file_priv);
1391 int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
1392 struct drm_file *file_priv);
1393 int drm_agp_info_ioctl(struct drm_device *dev, void *data,
1394 struct drm_file *file_priv);
1395 int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
1396 struct drm_file *file_priv);
1397 int drm_agp_free_ioctl(struct drm_device *dev, void *data,
1398 struct drm_file *file_priv);
1399 int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
1400 struct drm_file *file_priv);
1401 int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
1402 struct drm_file *file_priv);
1404 /* Stub support (drm_stub.h) */
1405 extern int drm_setmaster_ioctl(struct drm_device *dev, void *data,
1406 struct drm_file *file_priv);
1407 extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
1408 struct drm_file *file_priv);
1410 /* Scatter Gather Support (drm_scatter.c) */
1411 int drm_sg_alloc_ioctl(struct drm_device *dev, void *data,
1412 struct drm_file *file_priv);
1413 int drm_sg_free(struct drm_device *dev, void *data,
1414 struct drm_file *file_priv);
1416 /* consistent PCI memory functions (drm_pci.c) */
1417 extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
1419 void drm_pci_free(struct drm_device *dev, drm_dma_handle_t *dmah);
1421 /* sysfs support (drm_sysfs.c) */
1422 struct drm_sysfs_class;
1423 extern struct class *drm_sysfs_create(struct module *owner, char *name);
1424 extern void drm_sysfs_destroy(void);
1425 extern int drm_sysfs_device_add(struct drm_minor *minor);
1426 extern void drm_sysfs_hotplug_event(struct drm_device *dev);
1427 extern void drm_sysfs_device_remove(struct drm_minor *minor);
1428 extern int drm_sysfs_connector_add(struct drm_connector *connector);
1429 extern void drm_sysfs_connector_remove(struct drm_connector *connector);
1431 /* Graphics Execution Manager library functions (drm_gem.c) */
1432 int drm_gem_init(struct drm_device *dev);
1433 void drm_gem_destroy(struct drm_device *dev);
1434 void drm_gem_object_release(struct drm_gem_object *obj);
1435 void drm_gem_object_free(struct kref *kref);
1437 int drm_gem_close_ioctl(struct drm_device *dev, void *data,
1438 struct drm_file *file_priv);
1439 int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
1440 struct drm_file *file_priv);
1441 int drm_gem_open_ioctl(struct drm_device *dev, void *data,
1442 struct drm_file *file_priv);
1443 void drm_gem_object_handle_free(struct drm_gem_object *obj);
1445 int i915_gem_pager_ctor(void *handle, vm_ooffset_t size, vm_prot_t prot,
1446 vm_ooffset_t foff, struct ucred *cred, u_short *color);
1447 void i915_gem_pager_dtor(void * handle);
1449 #include <drm/drm_global.h>
1452 drm_gem_object_reference(struct drm_gem_object *obj)
1454 kref_get(&obj->refcount);
1458 drm_gem_object_unreference(struct drm_gem_object *obj)
1461 kref_put(&obj->refcount, drm_gem_object_free);
1465 drm_gem_object_unreference_unlocked(struct drm_gem_object *obj)
1468 struct drm_device *dev = obj->dev;
1470 kref_put(&obj->refcount, drm_gem_object_free);
1475 int drm_gem_handle_create(struct drm_file *file_priv,
1476 struct drm_gem_object *obj,
1478 int drm_gem_handle_delete(struct drm_file *filp, u32 handle);
1481 drm_gem_object_handle_reference(struct drm_gem_object *obj)
1483 drm_gem_object_reference(obj);
1484 atomic_inc(&obj->handle_count);
1488 drm_gem_object_handle_unreference(struct drm_gem_object *obj)
1493 if (atomic_read(&obj->handle_count) == 0)
1496 * Must bump handle count first as this may be the last
1497 * ref, in which case the object would disappear before we
1498 * checked for a name
1500 if (atomic_dec_and_test(&obj->handle_count))
1501 drm_gem_object_handle_free(obj);
1502 drm_gem_object_unreference(obj);
1506 drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj)
1511 if (atomic_read(&obj->handle_count) == 0)
1515 * Must bump handle count first as this may be the last
1516 * ref, in which case the object would disappear before we
1517 * checked for a name
1520 if (atomic_dec_and_test(&obj->handle_count))
1521 drm_gem_object_handle_free(obj);
1522 drm_gem_object_unreference_unlocked(obj);
1525 int drm_gem_object_init(struct drm_device *dev, struct drm_gem_object *obj,
1527 int drm_gem_private_object_init(struct drm_device *dev,
1528 struct drm_gem_object *obj, size_t size);
1529 struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev,
1531 struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev,
1532 struct drm_file *file_priv, uint32_t handle);
1534 void drm_gem_open(struct drm_device *dev, struct drm_file *file_priv);
1535 void drm_gem_release(struct drm_device *dev, struct drm_file *file_priv);
1537 int drm_gem_create_mmap_offset(struct drm_gem_object *obj);
1538 void drm_gem_free_mmap_offset(struct drm_gem_object *obj);
1539 int drm_gem_mmap_single(struct drm_device *dev, vm_ooffset_t *offset,
1540 vm_size_t size, struct vm_object **obj_res, int nprot);
1541 void drm_gem_pager_dtr(void *obj);
1543 struct ttm_bo_device;
1544 int ttm_bo_mmap_single(struct ttm_bo_device *bdev, vm_ooffset_t *offset,
1545 vm_size_t size, struct vm_object **obj_res, int nprot);
1546 struct ttm_buffer_object;
1547 void ttm_bo_release_mmap(struct ttm_buffer_object *bo);
1549 void drm_device_lock_mtx(struct drm_device *dev);
1550 void drm_device_unlock_mtx(struct drm_device *dev);
1551 int drm_device_sleep_mtx(struct drm_device *dev, void *chan, int flags,
1552 const char *msg, int timeout);
1553 void drm_device_assert_mtx_locked(struct drm_device *dev);
1554 void drm_device_assert_mtx_unlocked(struct drm_device *dev);
1556 void drm_device_lock_struct(struct drm_device *dev);
1557 void drm_device_unlock_struct(struct drm_device *dev);
1558 int drm_device_sleep_struct(struct drm_device *dev, void *chan, int flags,
1559 const char *msg, int timeout);
1560 void drm_device_assert_struct_locked(struct drm_device *dev);
1561 void drm_device_assert_struct_unlocked(struct drm_device *dev);
1563 void drm_compat_locking_init(struct drm_device *dev);
1564 void drm_sleep_locking_init(struct drm_device *dev);
1567 bool drm_mode_parse_command_line_for_connector(const char *mode_option,
1568 struct drm_connector *connector, struct drm_cmdline_mode *mode);
1569 struct drm_display_mode *drm_mode_create_from_cmdline_mode(
1570 struct drm_device *dev, struct drm_cmdline_mode *cmd);
1572 /* Inline replacements for drm_alloc and friends */
1573 static __inline__ void *
1574 drm_alloc(size_t size, struct malloc_type *area)
1576 return kmalloc(size, area, M_WAITOK | M_NULLOK);
1579 static __inline__ void *
1580 drm_calloc(size_t nmemb, size_t size, struct malloc_type *area)
1582 return kmalloc(size * nmemb, area, M_WAITOK | M_NULLOK | M_ZERO);
1585 static __inline__ void
1586 drm_free(void *pt, struct malloc_type *area)
1591 /* Inline replacements for DRM_IOREMAP macros */
1592 static __inline__ void
1593 drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev)
1595 map->handle = drm_ioremap_wc(dev, map);
1597 static __inline__ void
1598 drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev)
1600 map->handle = drm_ioremap(dev, map);
1602 static __inline__ void
1603 drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev)
1605 if ( map->handle && map->size )
1606 drm_ioremapfree(map);
1609 static __inline__ struct drm_local_map *
1610 drm_core_findmap(struct drm_device *dev, unsigned long offset)
1612 struct drm_map_list *_entry;
1614 list_for_each_entry(_entry, &dev->maplist, head) {
1615 if (offset == (unsigned long)_entry->map->handle)
1621 static __inline__ void drm_core_dropmap(struct drm_map *map)
1625 #include <drm/drm_mem_util.h>
1627 /* FreeBSD compatibility macros */
1628 #define VM_OBJECT_WLOCK(object) VM_OBJECT_LOCK(object)
1629 #define VM_OBJECT_WUNLOCK(object) VM_OBJECT_UNLOCK(object)
1631 #define DRM_PCIE_SPEED_25 1
1632 #define DRM_PCIE_SPEED_50 2
1633 #define DRM_PCIE_SPEED_80 4
1635 extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask);
1637 #define drm_can_sleep() (DRM_HZ & 1)
1639 #endif /* __KERNEL__ */
1640 #endif /* _DRM_P_H_ */