2 * Internal Header for the Direct Rendering Manager
4 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
5 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
6 * Copyright (c) 2009-2010, Code Aurora Forum.
9 * Author: Rickard E. (Rik) Faith <faith@valinux.com>
10 * Author: Gareth Hughes <gareth@valinux.com>
12 * Permission is hereby granted, free of charge, to any person obtaining a
13 * copy of this software and associated documentation files (the "Software"),
14 * to deal in the Software without restriction, including without limitation
15 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
16 * and/or sell copies of the Software, and to permit persons to whom the
17 * Software is furnished to do so, subject to the following conditions:
19 * The above copyright notice and this permission notice (including the next
20 * paragraph) shall be included in all copies or substantial portions of the
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
24 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
25 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
26 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
27 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
28 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
29 * OTHER DEALINGS IN THE SOFTWARE.
35 #include <linux/agp_backend.h>
36 #include <linux/cdev.h>
37 #include <linux/dma-mapping.h>
38 #include <linux/file.h>
40 #include <linux/highmem.h>
41 #include <linux/idr.h>
42 #include <linux/init.h>
44 #include <linux/jiffies.h>
45 #include <linux/kernel.h>
46 #include <linux/kref.h>
47 #include <linux/miscdevice.h>
49 #include <linux/mutex.h>
50 #include <linux/pci.h>
51 #include <linux/platform_device.h>
52 #include <linux/poll.h>
53 #include <linux/ratelimit.h>
54 #include <linux/rbtree.h>
55 #include <linux/sched.h>
56 #include <linux/slab.h>
57 #include <linux/types.h>
58 #include <linux/vmalloc.h>
59 #include <linux/workqueue.h>
60 #include <linux/dma-fence.h>
63 #include <asm/pgalloc.h>
64 #include <linux/uaccess.h>
66 #include <uapi/drm/drm.h>
67 #include <uapi/drm/drm_mode.h>
69 #include <drm/drm_agpsupport.h>
70 #include <drm/drm_crtc.h>
71 #include <drm/drm_fourcc.h>
72 #include <drm/drm_global.h>
73 #include <drm/drm_hashtab.h>
74 #include <drm/drm_mem_util.h>
75 #include <drm/drm_mm.h>
76 #include <drm/drm_os_linux.h>
77 #include <drm/drm_sarea.h>
78 #include <drm/drm_vma_manager.h>
79 #include <drm/drm_drv.h>
82 #include <sys/device.h>
83 #include <sys/sysctl.h>
85 #include <vm/vm_extern.h>
86 #include <vm/vm_pager.h>
94 struct drm_device_dma;
95 struct drm_dma_handle;
96 struct drm_gem_object;
98 struct drm_vblank_crtc;
102 struct reservation_object;
103 struct dma_buf_attachment;
106 * The following categories are defined:
108 * CORE: Used in the generic drm code: drm_ioctl.c, drm_mm.c, drm_memory.c, ...
109 * This is the category used by the DRM_DEBUG() macro.
111 * DRIVER: Used in the vendor specific part of the driver: i915, radeon, ...
112 * This is the category used by the DRM_DEBUG_DRIVER() macro.
114 * KMS: used in the modesetting code.
115 * This is the category used by the DRM_DEBUG_KMS() macro.
117 * PRIME: used in the prime code.
118 * This is the category used by the DRM_DEBUG_PRIME() macro.
120 * ATOMIC: used in the atomic code.
121 * This is the category used by the DRM_DEBUG_ATOMIC() macro.
123 * VBL: used for verbose debug message in the vblank code
124 * This is the category used by the DRM_DEBUG_VBL() macro.
126 * DragonFly-specific categories:
128 * PID: used as modifier to include PID number in messages.
129 * This is the category used by the all debug macros.
131 * FIOCTL: used in failed ioctl debugging.
132 * This is the category used by the DRM_DEBUG_FIOCTL() macro.
134 * IOCTL: used in ioctl debugging.
135 * This is the category used by the DRM_DEBUG_IOCTL() macro.
137 * Enabling verbose debug messages is done through the drm.debug parameter,
138 * each category being enabled by a bit.
140 * drm.debug=0x1 will enable CORE messages
141 * drm.debug=0x2 will enable DRIVER messages
142 * drm.debug=0x3 will enable CORE and DRIVER messages
144 * drm.debug=0x3f will enable all messages
146 * An interesting feature is that it's possible to enable verbose logging at
147 * run-time by using the hw.drm.debug sysctl variable:
148 * # sysctl hw.drm.debug=0xfff
150 #define DRM_UT_NONE 0x00
151 #define DRM_UT_CORE 0x01
152 #define DRM_UT_DRIVER 0x02
153 #define DRM_UT_KMS 0x04
154 #define DRM_UT_PRIME 0x08
155 #define DRM_UT_ATOMIC 0x10
156 #define DRM_UT_VBL 0x20
157 #define DRM_UT_STATE 0x40
158 /* Extra DragonFly debug categories */
160 #define DRM_UT_RES8 0x80 /* reserved for future expansion */
161 #define DRM_UT_PID 0x100
162 #define DRM_UT_FIOCTL 0x200
163 #define DRM_UT_IOCTL 0x400
166 extern __printflike(2, 3)
167 void drm_ut_debug_printk(const char *function_name,
168 const char *format, ...);
169 extern __printflike(2, 3)
170 void drm_err(const char *func, const char *format, ...);
172 /***********************************************************************/
173 /** \name DRM template customization defaults */
176 /***********************************************************************/
177 /** \name Macros to make printk easier */
180 #define _DRM_PRINTK(once, level, fmt, ...) \
182 printk##once(KERN_##level "[" DRM_NAME "] " fmt, \
186 #define DRM_INFO(fmt, ...) \
187 _DRM_PRINTK(, INFO, fmt, ##__VA_ARGS__)
188 #define DRM_NOTE(fmt, ...) \
189 _DRM_PRINTK(, NOTICE, fmt, ##__VA_ARGS__)
190 #define DRM_WARN(fmt, ...) \
191 _DRM_PRINTK(, WARNING, fmt, ##__VA_ARGS__)
193 #define DRM_INFO_ONCE(fmt, ...) \
194 _DRM_PRINTK(_once, INFO, fmt, ##__VA_ARGS__)
195 #define DRM_NOTE_ONCE(fmt, ...) \
196 _DRM_PRINTK(_once, NOTICE, fmt, ##__VA_ARGS__)
197 #define DRM_WARN_ONCE(fmt, ...) \
198 _DRM_PRINTK(_once, WARNING, fmt, ##__VA_ARGS__)
203 * \param fmt printf() like format string.
204 * \param arg arguments
206 #define DRM_DEV_ERROR(dev, fmt, ...) \
207 drm_dev_printk(dev, KERN_ERR, DRM_UT_NONE, __func__, " *ERROR*",\
209 #define DRM_ERROR(fmt, ...) \
210 drm_printk(KERN_ERR, DRM_UT_NONE, fmt, ##__VA_ARGS__)
213 * Rate limited error output. Like DRM_ERROR() but won't flood the log.
215 * \param fmt printf() like format string.
216 * \param arg arguments
218 #define DRM_DEV_ERROR_RATELIMITED(dev, fmt, ...) \
220 static DEFINE_RATELIMIT_STATE(_rs, \
221 DEFAULT_RATELIMIT_INTERVAL, \
222 DEFAULT_RATELIMIT_BURST); \
224 if (__ratelimit(&_rs)) \
225 DRM_DEV_ERROR(dev, fmt, ##__VA_ARGS__); \
227 #define DRM_ERROR_RATELIMITED(fmt, ...) \
228 DRM_DEV_ERROR_RATELIMITED(NULL, fmt, ##__VA_ARGS__)
230 #define DRM_DEV_INFO(dev, fmt, ...) \
231 drm_dev_printk(dev, KERN_INFO, DRM_UT_NONE, __func__, "", fmt, \
234 #define DRM_DEV_INFO_ONCE(dev, fmt, ...) \
236 static bool __print_once __read_mostly; \
237 if (!__print_once) { \
238 __print_once = true; \
239 DRM_DEV_INFO(dev, fmt, ##__VA_ARGS__); \
246 * \param fmt printf() like format string.
247 * \param arg arguments
249 #define DRM_DEV_DEBUG(dev, fmt, args...) \
250 drm_dev_printk(dev, KERN_DEBUG, DRM_UT_CORE, __func__, "", fmt, \
252 #define DRM_DEBUG(fmt, args...) \
254 if (unlikely(drm_debug & DRM_UT_CORE)) \
255 drm_ut_debug_printk(__func__, fmt, ##args); \
258 #define DRM_DEV_DEBUG_DRIVER(dev, fmt, args...) \
259 drm_dev_printk(dev, KERN_DEBUG, DRM_UT_DRIVER, __func__, "", \
261 #define DRM_DEBUG_DRIVER(fmt, args...) \
263 if (unlikely(drm_debug & DRM_UT_DRIVER)) \
264 drm_ut_debug_printk(__func__, fmt, ##args); \
267 #define DRM_DEV_DEBUG_KMS(dev, fmt, args...) \
268 drm_dev_printk(dev, KERN_DEBUG, DRM_UT_KMS, __func__, "", fmt, \
270 #define DRM_DEBUG_KMS(fmt, args...) \
272 if (unlikely(drm_debug & DRM_UT_KMS)) \
273 drm_ut_debug_printk(__func__, fmt, ##args); \
276 #define DRM_DEV_DEBUG_PRIME(dev, fmt, args...) \
277 drm_dev_printk(dev, KERN_DEBUG, DRM_UT_PRIME, __func__, "", \
279 #define DRM_DEBUG_PRIME(fmt, args...) \
281 if (unlikely(drm_debug & DRM_UT_PRIME)) \
282 drm_ut_debug_printk(__func__, fmt, ##args); \
285 #define DRM_DEV_DEBUG_ATOMIC(dev, fmt, args...) \
286 drm_dev_printk(dev, KERN_DEBUG, DRM_UT_ATOMIC, __func__, "", \
288 #define DRM_DEBUG_ATOMIC(fmt, args...) \
290 if (unlikely(drm_debug & DRM_UT_ATOMIC)) \
291 drm_ut_debug_printk(__func__, fmt, ##args); \
294 #define DRM_DEV_DEBUG_VBL(dev, fmt, args...) \
295 drm_dev_printk(dev, KERN_DEBUG, DRM_UT_VBL, __func__, "", fmt, \
297 #define DRM_DEBUG_VBL(fmt, args...) \
299 if (unlikely(drm_debug & DRM_UT_VBL)) \
300 drm_ut_debug_printk(__func__, fmt, ##args); \
304 #define DRM_DEBUG_FIOCTL(fmt, args...) \
306 if (unlikely(drm_debug & DRM_UT_FIOCTL)) \
307 drm_ut_debug_printk(__func__, fmt, ##args); \
309 #define DRM_DEBUG_IOCTL(fmt, args...) \
311 if (unlikely(drm_debug & DRM_UT_IOCTL)) \
312 drm_ut_debug_printk(__func__, fmt, ##args); \
314 #define DRM_DEBUG_VBLANK DRM_DEBUG_VBL
315 #endif /* __DragonFly__ */
317 #define _DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, level, fmt, args...) \
319 static DEFINE_RATELIMIT_STATE(_rs, \
320 DEFAULT_RATELIMIT_INTERVAL, \
321 DEFAULT_RATELIMIT_BURST); \
322 if (__ratelimit(&_rs)) \
323 drm_dev_printk(dev, KERN_DEBUG, DRM_UT_ ## level, \
324 __func__, "", fmt, ##args); \
328 * Rate limited debug output. Like DRM_DEBUG() but won't flood the log.
330 * \param fmt printf() like format string.
331 * \param arg arguments
333 #define DRM_DEV_DEBUG_RATELIMITED(dev, fmt, args...) \
334 DEV__DRM_DEFINE_DEBUG_RATELIMITED(dev, CORE, fmt, ##args)
335 #define DRM_DEBUG_RATELIMITED(fmt, args...) \
336 DRM_DEV_DEBUG_RATELIMITED(NULL, fmt, ##args)
337 #define DRM_DEV_DEBUG_DRIVER_RATELIMITED(dev, fmt, args...) \
338 _DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, DRIVER, fmt, ##args)
339 #define DRM_DEBUG_DRIVER_RATELIMITED(fmt, args...) \
340 DRM_DEV_DEBUG_DRIVER_RATELIMITED(NULL, fmt, ##args)
341 #define DRM_DEV_DEBUG_KMS_RATELIMITED(dev, fmt, args...) \
342 _DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, KMS, fmt, ##args)
343 #define DRM_DEBUG_KMS_RATELIMITED(fmt, args...) \
344 DRM_DEV_DEBUG_KMS_RATELIMITED(NULL, fmt, ##args)
345 #define DRM_DEV_DEBUG_PRIME_RATELIMITED(dev, fmt, args...) \
346 _DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, PRIME, fmt, ##args)
347 #define DRM_DEBUG_PRIME_RATELIMITED(fmt, args...) \
348 DRM_DEV_DEBUG_PRIME_RATELIMITED(NULL, fmt, ##args)
350 /* Format strings and argument splitters to simplify printing
351 * various "complex" objects
353 #define DRM_MODE_FMT "%d:\"%s\" %d %d %d %d %d %d %d %d %d %d 0x%x 0x%x"
354 #define DRM_MODE_ARG(m) \
355 (m)->base.id, (m)->name, (m)->vrefresh, (m)->clock, \
356 (m)->hdisplay, (m)->hsync_start, (m)->hsync_end, (m)->htotal, \
357 (m)->vdisplay, (m)->vsync_start, (m)->vsync_end, (m)->vtotal, \
358 (m)->type, (m)->flags
360 #define DRM_RECT_FMT "%dx%d%+d%+d"
361 #define DRM_RECT_ARG(r) drm_rect_width(r), drm_rect_height(r), (r)->x1, (r)->y1
363 /* for rect's in fixed-point format: */
364 #define DRM_RECT_FP_FMT "%d.%06ux%d.%06u%+d.%06u%+d.%06u"
365 #define DRM_RECT_FP_ARG(r) \
366 drm_rect_width(r) >> 16, ((drm_rect_width(r) & 0xffff) * 15625) >> 10, \
367 drm_rect_height(r) >> 16, ((drm_rect_height(r) & 0xffff) * 15625) >> 10, \
368 (r)->x1 >> 16, (((r)->x1 & 0xffff) * 15625) >> 10, \
369 (r)->y1 >> 16, (((r)->y1 & 0xffff) * 15625) >> 10
373 /***********************************************************************/
374 /** \name Internal types and structures */
377 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
379 #define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP)
380 #define DRM_DEV_UID UID_ROOT
381 #define DRM_DEV_GID GID_WHEEL
383 #define DRM_CURPROC curthread
384 #define DRM_STRUCTPROC struct thread
385 #define DRM_LOCK(dev) lockmgr(&(dev)->struct_mutex, LK_EXCLUSIVE)
386 #define DRM_UNLOCK(dev) lockmgr(&(dev)->struct_mutex, LK_RELEASE)
388 #define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS)
390 #define drm_get_device_from_kdev(_kdev) (_kdev->si_drv1)
392 int vm_phys_fictitious_reg_range(vm_paddr_t start, vm_paddr_t end,
393 vm_memattr_t memattr);
394 void vm_phys_fictitious_unreg_range(vm_paddr_t start, vm_paddr_t end);
395 vm_page_t vm_phys_fictitious_to_vm_page(vm_paddr_t pa);
398 * Ioctl function type.
400 * \param inode device inode.
401 * \param file_priv DRM file private pointer.
402 * \param cmd command.
403 * \param arg argument.
405 typedef int drm_ioctl_t(struct drm_device *dev, void *data,
406 struct drm_file *file_priv);
408 typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
411 #define DRM_IOCTL_NR(n) ((n) & 0xff)
412 #define DRM_MAJOR 226
415 #define DRM_MASTER 0x2
416 #define DRM_ROOT_ONLY 0x4
417 #define DRM_CONTROL_ALLOW 0x8
418 #define DRM_UNLOCKED 0x10
419 #define DRM_RENDER_ALLOW 0x20
421 struct drm_ioctl_desc {
429 * Creates a driver or general drm_ioctl_desc array entry for the given
430 * ioctl, for use by drm_ioctl().
433 #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \
434 [DRM_IOCTL_NR(DRM_IOCTL_##ioctl) - DRM_COMMAND_BASE] = { \
435 .cmd = DRM_IOCTL_##ioctl, \
441 /* Event queued up for userspace to read */
442 struct drm_pending_event {
443 struct completion *completion;
444 void (*completion_release)(struct completion *completion);
445 struct drm_event *event;
446 struct dma_fence *fence;
447 struct list_head link;
448 struct list_head pending_link;
449 struct drm_file *file_priv;
450 pid_t pid; /* pid of requester, no guarantee it's valid by the time
451 we deliver the event, for tracing only */
454 struct drm_prime_file_private {
456 struct rb_root dmabufs;
457 struct rb_root handles;
460 /** File private data */
462 unsigned authenticated :1;
463 /* true when the client has asked us to expose stereo 3D mode flags */
464 unsigned stereo_allowed :1;
466 * true if client understands CRTC primary planes and cursor planes
469 unsigned universal_planes:1;
470 /* true if client understands atomic properties */
473 * This client is the creator of @master.
474 * Protected by struct drm_device::master_mutex.
476 unsigned is_master:1;
480 struct list_head lhead;
481 struct drm_minor *minor;
482 unsigned long lock_count;
484 /** Mapping of mm object handles to object pointers. */
485 struct idr object_idr;
486 /** Lock for synchronization of access to object_idr. */
487 spinlock_t table_lock;
492 struct drm_master *master; /* master this node is currently associated with
493 N.B. not always dev->master */
495 * fbs - List of framebuffers associated with this file.
497 * Protected by fbs_lock. Note that the fbs list holds a reference on
498 * the fb object to prevent it from untimely disappearing.
500 struct list_head fbs;
501 struct lock fbs_lock;
503 /** User-created blob properties; this retains a reference on the
505 struct list_head blobs;
507 wait_queue_head_t event_wait;
508 struct list_head pending_event_list;
509 struct list_head event_list;
512 struct lock event_read_lock;
514 struct drm_prime_file_private prime;
517 struct drm_device *dev;
518 unsigned long ioctl_count;
526 struct drm_lock_data {
527 struct drm_hw_lock *hw_lock; /**< Hardware lock */
528 /** Private of lock holder's file (NULL=kernel) */
529 struct drm_file *file_priv;
530 wait_queue_head_t lock_queue; /**< Queue of blocked processes */
531 unsigned long lock_time; /**< Time of last lock in jiffies */
533 uint32_t kernel_waiters;
534 uint32_t user_waiters;
539 * GEM specific mm private for tracking GEM objects
542 struct drm_vma_offset_manager vma_manager;
543 struct drm_mm offset_manager; /**< Offset mgmt for buffer objects */
544 struct drm_open_hash offset_hash; /**< User token hash table for maps */
545 struct unrhdr *idxunr;
548 /* Flags and return codes for get_vblank_timestamp() driver function. */
549 #define DRM_CALLED_FROM_VBLIRQ 1
550 #define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0)
551 #define DRM_VBLANKTIME_IN_VBLANK (1 << 1)
553 /* get_scanout_position() return flags */
554 #define DRM_SCANOUTPOS_VALID (1 << 0)
555 #define DRM_SCANOUTPOS_IN_VBLANK (1 << 1)
556 #define DRM_SCANOUTPOS_ACCURATE (1 << 2)
558 enum drm_minor_type {
566 * Info file list entry. This structure represents a debugfs or proc file to
567 * be created by the drm core
569 struct drm_info_list {
570 const char *name; /** file name */
571 int (*show)(struct seq_file*, void*); /** show callback */
572 u32 driver_features; /**< Required driver features for this entry */
577 * debugfs node structure. This structure represents a debugfs file.
579 struct drm_info_node {
580 struct list_head list;
581 struct drm_minor *minor;
582 const struct drm_info_list *info_ent;
587 * DRM minor structure. This structure represents a drm minor number.
590 int index; /**< Minor device number */
591 int type; /**< Control or render */
592 struct device *kdev; /**< Linux device */
593 struct drm_device *dev;
595 struct dentry *debugfs_root;
597 struct list_head debugfs_list;
598 struct lock debugfs_lock; /* Protects debugfs_list. */
601 struct drm_sysctl_info {
602 struct sysctl_ctx_list ctx;
606 /* Length for the array of resource pointers for drm_get_resource_*. */
607 #define DRM_MAX_PCI_RESOURCE 6
610 * DRM device structure. This structure represent a complete card that
611 * may contain multiple heads.
614 struct list_head legacy_dev_list;/**< list of devices per driver for stealth attach cleanup */
615 int if_version; /**< Highest interface version set */
617 /** \name Lifetime Management */
619 struct kref ref; /**< Object ref-count */
620 struct device *dev; /**< Device structure of bus-device */
621 struct drm_driver *driver; /**< DRM driver managing the device */
622 void *dev_private; /**< DRM driver private data */
623 struct drm_minor *control; /**< Control node */
624 struct drm_minor *primary; /**< Primary node */
625 struct drm_minor *render; /**< Render node */
628 /* currently active master for this device. Protected by master_mutex */
629 struct drm_master *master;
631 atomic_t unplugged; /**< Flag whether dev is dead */
632 struct inode *anon_inode; /**< inode for private address-space */
633 char *unique; /**< unique name of the device */
638 struct lock struct_mutex; /**< For others */
639 struct lock master_mutex; /**< For drm_minor::master and drm_file::is_master */
642 /** \name Usage Counters */
644 int open_count; /**< Outstanding files open, protected by drm_global_mutex. */
645 spinlock_t buf_lock; /**< For drm_device::buf_use and a few other things. */
646 int buf_use; /**< Buffers in use -- cannot alloc */
647 atomic_t buf_alloc; /**< Buffer allocation in progress */
650 struct lock filelist_mutex;
651 struct list_head filelist;
653 /** \name Memory management */
655 struct list_head maplist; /**< Linked list of regions */
656 struct drm_open_hash map_hash; /**< User token hash table for maps */
658 /** \name Context handle management */
660 struct list_head ctxlist; /**< Linked list of context handles */
661 struct lock ctxlist_mutex; /**< For ctxlist */
665 struct list_head vmalist; /**< List of vmas (for debugging) */
669 /** \name DMA support */
671 struct drm_device_dma *dma; /**< Optional pointer for DMA support */
674 /** \name Context support */
677 __volatile__ long context_flag; /**< Context swapping flag */
678 int last_context; /**< Last current context */
681 /** \name VBLANK IRQ support */
687 * If true, vblank interrupt will be disabled immediately when the
688 * refcount drops to zero, as opposed to via the vblank disable
690 * This can be set to true it the hardware has a working vblank
691 * counter and the driver uses drm_vblank_on() and drm_vblank_off()
694 bool vblank_disable_immediate;
696 /* array of size num_crtcs */
697 struct drm_vblank_crtc *vblank;
699 spinlock_t vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */
702 u32 max_vblank_count; /**< size of vblank counter register */
707 struct list_head vblank_event_list;
708 spinlock_t event_lock;
712 struct drm_agp_head *agp; /**< AGP data */
714 struct pci_dev *pdev; /**< PCI device structure */
716 struct pci_controller *hose;
719 struct platform_device *platformdev; /**< Platform device struture */
720 struct virtio_device *virtdev;
722 struct drm_sg_mem *sg; /**< Scatter gather memory */
723 unsigned int num_crtcs; /**< Number of CRTCs on this device */
727 struct drm_hw_lock *lock;
730 struct drm_local_map *agp_buffer_map;
731 unsigned int agp_buffer_token;
733 struct drm_mode_config mode_config; /**< Current mode config */
735 /** \name GEM information */
737 struct lock object_name_lock;
738 struct idr object_name_idr;
739 struct drm_vma_offset_manager *vma_offset_manager;
741 int switch_power_state;
743 /* Storage of resource pointers for drm_get_resource_* */
744 struct resource *pcir[DRM_MAX_PCI_RESOURCE];
745 int pcirid[DRM_MAX_PCI_RESOURCE];
754 struct drm_sysctl_info *sysctl;
756 struct idr magic_map;
758 int unique_len; /* Length of unique field */
759 struct cdev *devnode; /* Device number for mknod */
761 struct lwkt_serialize irq_lock; /* protects irq condition checks */
763 struct sigio *buf_sigio; /* Processes waiting for SIGIO */
766 struct drm_lock_data lock; /* Information on hardware lock */
770 #include <drm/drm_irq.h>
772 #define DRM_SWITCH_POWER_ON 0
773 #define DRM_SWITCH_POWER_OFF 1
774 #define DRM_SWITCH_POWER_CHANGING 2
775 #define DRM_SWITCH_POWER_DYNAMIC_OFF 3
777 static __inline__ int drm_core_check_feature(struct drm_device *dev,
780 return ((dev->driver->driver_features & feature) ? 1 : 0);
783 static inline void drm_device_set_unplugged(struct drm_device *dev)
786 atomic_set(&dev->unplugged, 1);
789 static inline int drm_device_is_unplugged(struct drm_device *dev)
791 int ret = atomic_read(&dev->unplugged);
796 static inline bool drm_is_render_client(const struct drm_file *file_priv)
798 return file_priv->minor->type == DRM_MINOR_RENDER;
801 static inline bool drm_is_control_client(const struct drm_file *file_priv)
803 return file_priv->minor->type == DRM_MINOR_CONTROL;
806 static inline bool drm_is_primary_client(const struct drm_file *file_priv)
808 return file_priv->minor->type == DRM_MINOR_PRIMARY;
811 /******************************************************************/
812 /** \name Internal function definitions */
815 /* Driver support (drm_drv.h) */
816 extern int drm_ioctl_permit(u32 flags, struct drm_file *file_priv);
817 int drm_create_cdevs(device_t kdev);
820 extern long drm_compat_ioctl(struct file *filp,
821 unsigned int cmd, unsigned long arg);
823 /* Let drm_compat_ioctl be assigned to .compat_ioctl unconditionally */
824 #define drm_compat_ioctl NULL
826 extern bool drm_ioctl_flags(unsigned int nr, unsigned int *flags);
828 /* File Operations (drm_fops.c) */
832 int drm_release(struct inode *inode, struct file *filp);
834 /* DragonFly driver framework */
836 d_kqfilter_t drm_kqfilter;
838 d_mmap_single_t drm_mmap_single;
840 int drm_device_detach(device_t kdev);
842 void drm_cdevpriv_dtor(void *cd);
844 int drm_add_busid_modesetting(struct drm_device *dev,
845 struct sysctl_ctx_list *ctx, struct sysctl_oid *top);
848 unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait);
849 int drm_event_reserve_init_locked(struct drm_device *dev,
850 struct drm_file *file_priv,
851 struct drm_pending_event *p,
852 struct drm_event *e);
853 int drm_event_reserve_init(struct drm_device *dev,
854 struct drm_file *file_priv,
855 struct drm_pending_event *p,
856 struct drm_event *e);
857 void drm_event_cancel_free(struct drm_device *dev,
858 struct drm_pending_event *p);
859 void drm_send_event_locked(struct drm_device *dev, struct drm_pending_event *e);
860 void drm_send_event(struct drm_device *dev, struct drm_pending_event *e);
862 /* Misc. IOCTL support (drm_ioctl.c) */
863 int drm_noop(struct drm_device *dev, void *data,
864 struct drm_file *file_priv);
865 int drm_invalid_op(struct drm_device *dev, void *data,
866 struct drm_file *file_priv);
868 /* Cache management (drm_cache.c) */
869 void drm_clflush_pages(struct page *pages[], unsigned long num_pages);
870 void drm_clflush_sg(struct sg_table *st);
871 void drm_clflush_virt_range(void *addr, unsigned long length);
874 * These are exported to drivers so that they can implement fencing using
875 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
878 /* Debugfs support */
879 #if defined(CONFIG_DEBUG_FS)
880 extern int drm_debugfs_create_files(const struct drm_info_list *files,
881 int count, struct dentry *root,
882 struct drm_minor *minor);
883 extern int drm_debugfs_remove_files(const struct drm_info_list *files,
884 int count, struct drm_minor *minor);
886 static inline int drm_debugfs_create_files(const struct drm_info_list *files,
887 int count, struct dentry *root,
888 struct drm_minor *minor)
893 static inline int drm_debugfs_remove_files(const struct drm_info_list *files,
894 int count, struct drm_minor *minor)
900 struct dma_buf_export_info;
902 extern struct dma_buf *drm_gem_prime_export(struct drm_device *dev,
903 struct drm_gem_object *obj,
905 extern int drm_gem_prime_handle_to_fd(struct drm_device *dev,
906 struct drm_file *file_priv, uint32_t handle, uint32_t flags,
908 extern struct drm_gem_object *drm_gem_prime_import(struct drm_device *dev,
909 struct dma_buf *dma_buf);
910 extern int drm_gem_prime_fd_to_handle(struct drm_device *dev,
911 struct drm_file *file_priv, int prime_fd, uint32_t *handle);
912 struct dma_buf *drm_gem_dmabuf_export(struct drm_device *dev,
913 struct dma_buf_export_info *exp_info);
914 extern void drm_gem_dmabuf_release(struct dma_buf *dma_buf);
916 extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, struct page **pages,
917 dma_addr_t *addrs, int max_pages);
918 extern struct sg_table *drm_prime_pages_to_sg(struct page **pages, unsigned int nr_pages);
919 extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg);
922 extern struct drm_dma_handle *drm_pci_alloc(struct drm_device *dev, size_t size,
924 extern void drm_pci_free(struct drm_device *dev, struct drm_dma_handle * dmah);
926 /* sysfs support (drm_sysfs.c) */
927 extern void drm_sysfs_hotplug_event(struct drm_device *dev);
930 /* XXX glue logic, should be done in drm_pci_init(), pending drm update */
931 void drm_init_pdev(device_t dev, struct pci_dev **pdev);
932 void drm_fini_pdev(struct pci_dev **pdev);
933 void drm_print_pdev(struct pci_dev *pdev);
935 int drm_dev_set_unique(struct drm_device *dev, const char *name);
940 static __inline__ int drm_pci_device_is_agp(struct drm_device *dev)
942 if (dev->driver->device_is_agp != NULL) {
943 int err = (*dev->driver->device_is_agp) (dev);
950 return (pci_find_extcap(dev->pdev->dev.bsddev, PCIY_AGP, NULL) == 0);
952 void drm_pci_agp_destroy(struct drm_device *dev);
954 extern int drm_pci_init(struct drm_driver *driver, struct pci_driver *pdriver);
955 extern void drm_pci_exit(struct drm_driver *driver, struct pci_driver *pdriver);
957 extern int drm_get_pci_dev(struct pci_dev *pdev,
958 const struct pci_device_id *ent,
959 struct drm_driver *driver);
960 extern int drm_pci_set_busid(struct drm_device *dev, struct drm_master *master);
962 static inline int drm_get_pci_dev(struct pci_dev *pdev,
963 const struct pci_device_id *ent,
964 struct drm_driver *driver)
969 static inline int drm_pci_set_busid(struct drm_device *dev,
970 struct drm_master *master)
976 #define DRM_PCIE_SPEED_25 1
977 #define DRM_PCIE_SPEED_50 2
978 #define DRM_PCIE_SPEED_80 4
980 extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask);
981 extern int drm_pcie_get_max_link_width(struct drm_device *dev, u32 *mlw);
983 /* platform section */
984 extern int drm_platform_init(struct drm_driver *driver, struct platform_device *platform_device);
986 /* returns true if currently okay to sleep */
987 static __inline__ bool drm_can_sleep(void)
989 if (in_atomic() || in_dbg_master() || irqs_disabled())
994 /* helper for handling conditionals in various for_each macros */
995 #define for_each_if(condition) if (!(condition)) {} else
999 void *drm_driver_data;
1002 /* sysctl support (drm_sysctl.h) */
1003 extern int drm_sysctl_init(struct drm_device *dev);
1004 extern int drm_sysctl_cleanup(struct drm_device *dev);
1006 unsigned long drm_get_resource_start(struct drm_device *dev,
1007 unsigned int resource);
1008 unsigned long drm_get_resource_len(struct drm_device *dev,
1009 unsigned int resource);
1011 int ttm_bo_mmap_single(struct drm_device *dev, vm_ooffset_t *offset,
1012 vm_size_t size, struct vm_object **obj_res, int nprot);
1014 int drm_gem_mmap_single(struct drm_device *dev, vm_ooffset_t *offset,
1015 vm_size_t size, struct vm_object **obj_res, int nprot);
1017 /* XXX: These are here only because of drm_sysctl.c */
1018 extern int drm_vblank_offdelay;
1019 extern unsigned int drm_timestamp_precision;