1 /* drmP.h -- Private header for Direct Rendering Manager -*- linux-c -*-
2 * Created: Mon Jan 4 10:05:05 1999 by faith@precisioninsight.com
3 */
4 /*-
5 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
6 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
7 * All rights reserved.
8 *
9 * Permission is hereby granted, free of charge, to any person obtaining a
10 * copy of this software and associated documentation files (the "Software"),
11 * to deal in the Software without restriction, including without limitation
12 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
13 * and/or sell copies of the Software, and to permit persons to whom the
14 * Software is furnished to do so, subject to the following conditions:
15 *
16 * The above copyright notice and this permission notice (including the next
17 * paragraph) shall be included in all copies or substantial portions of the
18 * Software.
19 *
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
23 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
24 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
25 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
26 * OTHER DEALINGS IN THE SOFTWARE.
27 *
28 * Authors:
29 * Rickard E. (Rik) Faith <faith@valinux.com>
30 * Gareth Hughes <gareth@valinux.com>
31 *
32 */
33
34 #include <sys/cdefs.h>
35 __FBSDID("$FreeBSD: stable/10/sys/dev/drm/drmP.h 248084 2013-03-09 02:32:23Z attilio $");
36
37 #ifndef _DRM_P_H_
38 #define _DRM_P_H_
39
40 #if defined(_KERNEL) || defined(__KERNEL__)
41
42 struct drm_device;
43 struct drm_file;
44
45 #include <sys/param.h>
46 #include <sys/queue.h>
47 #include <sys/malloc.h>
48 #include <sys/kernel.h>
49 #include <sys/module.h>
50 #include <sys/systm.h>
51 #include <sys/conf.h>
52 #include <sys/sglist.h>
53 #include <sys/stat.h>
54 #if __FreeBSD_version >= 700000
55 #include <sys/priv.h>
56 #endif
57 #include <sys/proc.h>
58 #include <sys/lock.h>
59 #include <sys/fcntl.h>
60 #include <sys/uio.h>
61 #include <sys/filio.h>
62 #include <sys/rwlock.h>
63 #include <sys/sysctl.h>
64 #include <sys/bus.h>
65 #include <sys/queue.h>
66 #include <sys/signalvar.h>
67 #include <sys/poll.h>
68 #include <sys/taskqueue.h>
69 #include <sys/tree.h>
70 #include <vm/vm.h>
71 #include <vm/pmap.h>
72 #include <vm/vm_extern.h>
73 #include <vm/vm_kern.h>
74 #include <vm/vm_map.h>
75 #include <vm/vm_object.h>
76 #include <vm/vm_page.h>
77 #include <vm/vm_pager.h>
78 #include <vm/vm_param.h>
79 #include <vm/vm_phys.h>
80 #include <machine/param.h>
81 #include <machine/pmap.h>
82 #include <machine/bus.h>
83 #include <machine/resource.h>
84 #if defined(__i386__) || defined(__amd64__)
85 #include <machine/specialreg.h>
86 #endif
87 #include <machine/sysarch.h>
88 #include <sys/endian.h>
89 #if _BYTE_ORDER == _BIG_ENDIAN
90 #define __BIG_ENDIAN 1
91 #else
92 #define __LITTLE_ENDIAN 1
93 #endif
94 #include <sys/mman.h>
95 #include <sys/rman.h>
96 #include <sys/memrange.h>
97 #if __FreeBSD_version >= 800004
98 #include <dev/agp/agpvar.h>
99 #else /* __FreeBSD_version >= 800004 */
100 #include <pci/agpvar.h>
101 #endif /* __FreeBSD_version >= 800004 */
102 #include <sys/agpio.h>
103 #include <sys/mutex.h>
104 #include <dev/pci/pcivar.h>
105 #include <dev/pci/pcireg.h>
106 #include <sys/selinfo.h>
107 #include <sys/bus.h>
108
109 #include "dev/drm/drm.h"
110 #include "dev/drm/drm_atomic.h"
111 #include "dev/drm/drm_internal.h"
112 #include "dev/drm/drm_linux_list.h"
113
114 #include <opt_drm.h>
115 #ifdef DRM_DEBUG
116 #undef DRM_DEBUG
117 #define DRM_DEBUG_DEFAULT_ON 1
118 #endif /* DRM_DEBUG */
119
120 #if defined(DRM_LINUX) && DRM_LINUX && !defined(__amd64__)
121 #include <sys/file.h>
122 #include <sys/proc.h>
123 #include <machine/../linux/linux.h>
124 #include <machine/../linux/linux_proto.h>
125 #else
126 /* Either it was defined when it shouldn't be (FreeBSD amd64) or it isn't
127 * supported on this OS yet.
128 */
129 #undef DRM_LINUX
130 #define DRM_LINUX 0
131 #endif
132
133 /* driver capabilities and requirements mask */
134 #define DRIVER_USE_AGP 0x1
135 #define DRIVER_REQUIRE_AGP 0x2
136 #define DRIVER_USE_MTRR 0x4
137 #define DRIVER_PCI_DMA 0x8
138 #define DRIVER_SG 0x10
139 #define DRIVER_HAVE_DMA 0x20
140 #define DRIVER_HAVE_IRQ 0x40
141 #define DRIVER_DMA_QUEUE 0x100
142
143
144 #define DRM_HASH_SIZE 16 /* Size of key hash table */
145 #define DRM_KERNEL_CONTEXT 0 /* Change drm_resctx if changed */
146 #define DRM_RESERVED_CONTEXTS 1 /* Change drm_resctx if changed */
147
148 MALLOC_DECLARE(DRM_MEM_DMA);
149 MALLOC_DECLARE(DRM_MEM_SAREA);
150 MALLOC_DECLARE(DRM_MEM_DRIVER);
151 MALLOC_DECLARE(DRM_MEM_MAGIC);
152 MALLOC_DECLARE(DRM_MEM_IOCTLS);
153 MALLOC_DECLARE(DRM_MEM_MAPS);
154 MALLOC_DECLARE(DRM_MEM_BUFS);
155 MALLOC_DECLARE(DRM_MEM_SEGS);
156 MALLOC_DECLARE(DRM_MEM_PAGES);
157 MALLOC_DECLARE(DRM_MEM_FILES);
158 MALLOC_DECLARE(DRM_MEM_QUEUES);
159 MALLOC_DECLARE(DRM_MEM_CMDS);
160 MALLOC_DECLARE(DRM_MEM_MAPPINGS);
161 MALLOC_DECLARE(DRM_MEM_BUFLISTS);
162 MALLOC_DECLARE(DRM_MEM_AGPLISTS);
163 MALLOC_DECLARE(DRM_MEM_CTXBITMAP);
164 MALLOC_DECLARE(DRM_MEM_SGLISTS);
165 MALLOC_DECLARE(DRM_MEM_DRAWABLE);
166 MALLOC_DECLARE(DRM_MEM_MM);
167 MALLOC_DECLARE(DRM_MEM_HASHTAB);
168
169 SYSCTL_DECL(_hw_drm);
170
171 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
172
173 /* Internal types and structures */
174 #define DRM_ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
175 #define DRM_MIN(a,b) ((a)<(b)?(a):(b))
176 #define DRM_MAX(a,b) ((a)>(b)?(a):(b))
177
178 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
179
180 #define __OS_HAS_AGP 1
181
182 #define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP)
183 #define DRM_DEV_UID 0
184 #define DRM_DEV_GID 0
185
186 #define wait_queue_head_t atomic_t
187 #define DRM_WAKEUP(w) wakeup((void *)w)
188 #define DRM_WAKEUP_INT(w) wakeup(w)
189 #define DRM_INIT_WAITQUEUE(queue) do {(void)(queue);} while (0)
190
191 #define DRM_CURPROC curthread
192 #define DRM_STRUCTPROC struct thread
193 #define DRM_SPINTYPE struct mtx
194 #define DRM_SPININIT(l,name) mtx_init(l, name, NULL, MTX_DEF)
195 #define DRM_SPINUNINIT(l) mtx_destroy(l)
196 #define DRM_SPINLOCK(l) mtx_lock(l)
197 #define DRM_SPINUNLOCK(u) mtx_unlock(u)
198 #define DRM_SPINLOCK_IRQSAVE(l, irqflags) do { \
199 mtx_lock(l); \
200 (void)irqflags; \
201 } while (0)
202 #define DRM_SPINUNLOCK_IRQRESTORE(u, irqflags) mtx_unlock(u)
203 #define DRM_SPINLOCK_ASSERT(l) mtx_assert(l, MA_OWNED)
204 #define DRM_CURRENTPID curthread->td_proc->p_pid
205 #define DRM_LOCK() mtx_lock(&dev->dev_lock)
206 #define DRM_UNLOCK() mtx_unlock(&dev->dev_lock)
207 #define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS)
208
209 #define DRM_IRQ_ARGS void *arg
210 typedef void irqreturn_t;
211 #define IRQ_HANDLED /* nothing */
212 #define IRQ_NONE /* nothing */
213
214 #define unlikely(x) __builtin_expect(!!(x), 0)
215 #define container_of(ptr, type, member) ({ \
216 __typeof( ((type *)0)->member ) *__mptr = (ptr); \
217 (type *)( (char *)__mptr - offsetof(type,member) );})
218
219 enum {
220 DRM_IS_NOT_AGP,
221 DRM_IS_AGP,
222 DRM_MIGHT_BE_AGP
223 };
224 #define DRM_AGP_MEM struct agp_memory_info
225
226 #define drm_get_device_from_kdev(_kdev) (_kdev->si_drv1)
227
228 #define PAGE_ALIGN(addr) round_page(addr)
229 /* DRM_SUSER returns true if the user is superuser */
230 #if __FreeBSD_version >= 700000
231 #define DRM_SUSER(p) (priv_check(p, PRIV_DRIVER) == 0)
232 #else
233 #define DRM_SUSER(p) (suser(p) == 0)
234 #endif
235 #define DRM_AGP_FIND_DEVICE() agp_find_device()
236 #define DRM_MTRR_WC MDF_WRITECOMBINE
237 #define jiffies ticks
238
239 typedef vm_paddr_t dma_addr_t;
240 typedef u_int64_t u64;
241 typedef u_int32_t u32;
242 typedef u_int16_t u16;
243 typedef u_int8_t u8;
244
245 /* DRM_READMEMORYBARRIER() prevents reordering of reads.
246 * DRM_WRITEMEMORYBARRIER() prevents reordering of writes.
247 * DRM_MEMORYBARRIER() prevents reordering of reads and writes.
248 */
249 #define DRM_READMEMORYBARRIER() rmb()
250 #define DRM_WRITEMEMORYBARRIER() wmb()
251 #define DRM_MEMORYBARRIER() mb()
252
253 #define DRM_READ8(map, offset) \
254 *(volatile u_int8_t *)(((vm_offset_t)(map)->virtual) + \
255 (vm_offset_t)(offset))
256 #define DRM_READ16(map, offset) \
257 le16toh(*(volatile u_int16_t *)(((vm_offset_t)(map)->virtual) + \
258 (vm_offset_t)(offset)))
259 #define DRM_READ32(map, offset) \
260 le32toh(*(volatile u_int32_t *)(((vm_offset_t)(map)->virtual) + \
261 (vm_offset_t)(offset)))
262 #define DRM_WRITE8(map, offset, val) \
263 *(volatile u_int8_t *)(((vm_offset_t)(map)->virtual) + \
264 (vm_offset_t)(offset)) = val
265 #define DRM_WRITE16(map, offset, val) \
266 *(volatile u_int16_t *)(((vm_offset_t)(map)->virtual) + \
267 (vm_offset_t)(offset)) = htole16(val)
268 #define DRM_WRITE32(map, offset, val) \
269 *(volatile u_int32_t *)(((vm_offset_t)(map)->virtual) + \
270 (vm_offset_t)(offset)) = htole32(val)
271
272 #define DRM_VERIFYAREA_READ( uaddr, size ) \
273 (!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ))
274
275 #define DRM_COPY_TO_USER(user, kern, size) \
276 copyout(kern, user, size)
277 #define DRM_COPY_FROM_USER(kern, user, size) \
278 copyin(user, kern, size)
279 #define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \
280 copyin(arg2, arg1, arg3)
281 #define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \
282 copyout(arg2, arg1, arg3)
283 #define DRM_GET_USER_UNCHECKED(val, uaddr) \
284 ((val) = fuword32(uaddr), 0)
285
286 #define cpu_to_le32(x) htole32(x)
287 #define le32_to_cpu(x) le32toh(x)
288
289 #define DRM_HZ hz
290 #define DRM_UDELAY(udelay) DELAY(udelay)
291 #define DRM_TIME_SLICE (hz/20) /* Time slice for GLXContexts */
292
293 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
294 (_map) = (_dev)->context_sareas[_ctx]; \
295 } while(0)
296
297 #define LOCK_TEST_WITH_RETURN(dev, file_priv) \
298 do { \
299 if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) || \
300 dev->lock.file_priv != file_priv) { \
301 DRM_ERROR("%s called without lock held\n", \
302 __FUNCTION__); \
303 return EINVAL; \
304 } \
305 } while (0)
306
307 /* Returns -errno to shared code */
308 #define DRM_WAIT_ON( ret, queue, timeout, condition ) \
309 for ( ret = 0 ; !ret && !(condition) ; ) { \
310 DRM_UNLOCK(); \
311 mtx_lock(&dev->irq_lock); \
312 if (!(condition)) \
313 ret = -mtx_sleep(&(queue), &dev->irq_lock, \
314 PCATCH, "drmwtq", (timeout)); \
315 mtx_unlock(&dev->irq_lock); \
316 DRM_LOCK(); \
317 }
318
319 #define DRM_ERROR(fmt, ...) \
320 printf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \
321 DRM_CURRENTPID, __func__ , ##__VA_ARGS__)
322
323 #define DRM_INFO(fmt, ...) printf("info: [" DRM_NAME "] " fmt , ##__VA_ARGS__)
324
325 #define DRM_DEBUG(fmt, ...) do { \
326 if (drm_debug_flag) \
327 printf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \
328 __func__ , ##__VA_ARGS__); \
329 } while (0)
330
331 typedef struct drm_pci_id_list
332 {
333 int vendor;
334 int device;
335 long driver_private;
336 char *name;
337 } drm_pci_id_list_t;
338
339 struct drm_msi_blacklist_entry
340 {
341 int vendor;
342 int device;
343 };
344
345 #define DRM_AUTH 0x1
346 #define DRM_MASTER 0x2
347 #define DRM_ROOT_ONLY 0x4
348 typedef struct drm_ioctl_desc {
349 unsigned long cmd;
350 int (*func)(struct drm_device *dev, void *data,
351 struct drm_file *file_priv);
352 int flags;
353 } drm_ioctl_desc_t;
354 /**
355 * Creates a driver or general drm_ioctl_desc array entry for the given
356 * ioctl, for use by drm_ioctl().
357 */
358 #define DRM_IOCTL_DEF(ioctl, func, flags) \
359 [DRM_IOCTL_NR(ioctl)] = {ioctl, func, flags}
360
361 typedef struct drm_magic_entry {
362 drm_magic_t magic;
363 struct drm_file *priv;
364 struct drm_magic_entry *next;
365 } drm_magic_entry_t;
366
367 typedef struct drm_magic_head {
368 struct drm_magic_entry *head;
369 struct drm_magic_entry *tail;
370 } drm_magic_head_t;
371
372 typedef struct drm_buf {
373 int idx; /* Index into master buflist */
374 int total; /* Buffer size */
375 int order; /* log-base-2(total) */
376 int used; /* Amount of buffer in use (for DMA) */
377 unsigned long offset; /* Byte offset (used internally) */
378 void *address; /* Address of buffer */
379 unsigned long bus_address; /* Bus address of buffer */
380 struct drm_buf *next; /* Kernel-only: used for free list */
381 __volatile__ int pending; /* On hardware DMA queue */
382 struct drm_file *file_priv; /* Unique identifier of holding process */
383 int context; /* Kernel queue for this buffer */
384 enum {
385 DRM_LIST_NONE = 0,
386 DRM_LIST_FREE = 1,
387 DRM_LIST_WAIT = 2,
388 DRM_LIST_PEND = 3,
389 DRM_LIST_PRIO = 4,
390 DRM_LIST_RECLAIM = 5
391 } list; /* Which list we're on */
392
393 int dev_priv_size; /* Size of buffer private stoarge */
394 void *dev_private; /* Per-buffer private storage */
395 } drm_buf_t;
396
397 typedef struct drm_freelist {
398 int initialized; /* Freelist in use */
399 atomic_t count; /* Number of free buffers */
400 drm_buf_t *next; /* End pointer */
401
402 int low_mark; /* Low water mark */
403 int high_mark; /* High water mark */
404 } drm_freelist_t;
405
406 typedef struct drm_dma_handle {
407 void *vaddr;
408 bus_addr_t busaddr;
409 bus_dma_tag_t tag;
410 bus_dmamap_t map;
411 } drm_dma_handle_t;
412
413 typedef struct drm_buf_entry {
414 int buf_size;
415 int buf_count;
416 drm_buf_t *buflist;
417 int seg_count;
418 drm_dma_handle_t **seglist;
419 int page_order;
420
421 drm_freelist_t freelist;
422 } drm_buf_entry_t;
423
424 typedef TAILQ_HEAD(drm_file_list, drm_file) drm_file_list_t;
425 struct drm_file {
426 TAILQ_ENTRY(drm_file) link;
427 struct drm_device *dev;
428 int authenticated;
429 int master;
430 pid_t pid;
431 uid_t uid;
432 drm_magic_t magic;
433 unsigned long ioctl_count;
434 void *driver_priv;
435 };
436
437 typedef struct drm_lock_data {
438 struct drm_hw_lock *hw_lock; /* Hardware lock */
439 struct drm_file *file_priv; /* Unique identifier of holding process (NULL is kernel)*/
440 int lock_queue; /* Queue of blocked processes */
441 unsigned long lock_time; /* Time of last lock in jiffies */
442 } drm_lock_data_t;
443
444 /* This structure, in the struct drm_device, is always initialized while the
445 * device
446 * is open. dev->dma_lock protects the incrementing of dev->buf_use, which
447 * when set marks that no further bufs may be allocated until device teardown
448 * occurs (when the last open of the device has closed). The high/low
449 * watermarks of bufs are only touched by the X Server, and thus not
450 * concurrently accessed, so no locking is needed.
451 */
452 typedef struct drm_device_dma {
453 drm_buf_entry_t bufs[DRM_MAX_ORDER+1];
454 int buf_count;
455 drm_buf_t **buflist; /* Vector of pointers info bufs */
456 int seg_count;
457 int page_count;
458 unsigned long *pagelist;
459 unsigned long byte_count;
460 enum {
461 _DRM_DMA_USE_AGP = 0x01,
462 _DRM_DMA_USE_SG = 0x02
463 } flags;
464 } drm_device_dma_t;
465
466 typedef struct drm_agp_mem {
467 void *handle;
468 unsigned long bound; /* address */
469 int pages;
470 struct drm_agp_mem *prev;
471 struct drm_agp_mem *next;
472 } drm_agp_mem_t;
473
474 typedef struct drm_agp_head {
475 device_t agpdev;
476 struct agp_info info;
477 const char *chipset;
478 drm_agp_mem_t *memory;
479 unsigned long mode;
480 int enabled;
481 int acquired;
482 unsigned long base;
483 int mtrr;
484 int cant_use_aperture;
485 unsigned long page_mask;
486 } drm_agp_head_t;
487
488 typedef struct drm_sg_mem {
489 vm_offset_t vaddr;
490 vm_paddr_t *busaddr;
491 vm_pindex_t pages;
492 } drm_sg_mem_t;
493
494 #define DRM_MAP_HANDLE_BITS (sizeof(void *) == 4 ? 4 : 24)
495 #define DRM_MAP_HANDLE_SHIFT (sizeof(void *) * 8 - DRM_MAP_HANDLE_BITS)
496 typedef TAILQ_HEAD(drm_map_list, drm_local_map) drm_map_list_t;
497
498 typedef struct drm_local_map {
499 unsigned long offset; /* Physical address (0 for SAREA) */
500 unsigned long size; /* Physical size (bytes) */
501 enum drm_map_type type; /* Type of memory mapped */
502 enum drm_map_flags flags; /* Flags */
503 void *handle; /* User-space: "Handle" to pass to mmap */
504 /* Kernel-space: kernel-virtual address */
505 int mtrr; /* Boolean: MTRR used */
506 /* Private data */
507 int rid; /* PCI resource ID for bus_space */
508 void *virtual; /* Kernel-space: kernel-virtual address */
509 struct resource *bsr;
510 bus_space_tag_t bst;
511 bus_space_handle_t bsh;
512 drm_dma_handle_t *dmah;
513 TAILQ_ENTRY(drm_local_map) link;
514 } drm_local_map_t;
515
516 struct drm_vblank_info {
517 wait_queue_head_t queue; /* vblank wait queue */
518 atomic_t count; /* number of VBLANK interrupts */
519 /* (driver must alloc the right number of counters) */
520 atomic_t refcount; /* number of users of vblank interrupts */
521 u32 last; /* protected by dev->vbl_lock, used */
522 /* for wraparound handling */
523 int enabled; /* so we don't call enable more than */
524 /* once per disable */
525 int inmodeset; /* Display driver is setting mode */
526 };
527
528 /* location of GART table */
529 #define DRM_ATI_GART_MAIN 1
530 #define DRM_ATI_GART_FB 2
531
532 #define DRM_ATI_GART_PCI 1
533 #define DRM_ATI_GART_PCIE 2
534 #define DRM_ATI_GART_IGP 3
535
536 struct drm_ati_pcigart_info {
537 int gart_table_location;
538 int gart_reg_if;
539 void *addr;
540 dma_addr_t bus_addr;
541 dma_addr_t table_mask;
542 dma_addr_t member_mask;
543 struct drm_dma_handle *table_handle;
544 drm_local_map_t mapping;
545 int table_size;
546 struct drm_dma_handle *dmah; /* handle for ATI PCIGART table */
547 };
548
549 #ifndef DMA_BIT_MASK
550 #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1)
551 #endif
552
553 #define upper_32_bits(n) ((u32)(((n) >> 16) >> 16))
554
555 struct drm_driver_info {
556 int (*load)(struct drm_device *, unsigned long flags);
557 int (*firstopen)(struct drm_device *);
558 int (*open)(struct drm_device *, struct drm_file *);
559 void (*preclose)(struct drm_device *, struct drm_file *file_priv);
560 void (*postclose)(struct drm_device *, struct drm_file *);
561 void (*lastclose)(struct drm_device *);
562 int (*unload)(struct drm_device *);
563 void (*reclaim_buffers_locked)(struct drm_device *,
564 struct drm_file *file_priv);
565 int (*dma_ioctl)(struct drm_device *dev, void *data,
566 struct drm_file *file_priv);
567 void (*dma_ready)(struct drm_device *);
568 int (*dma_quiescent)(struct drm_device *);
569 int (*dma_flush_block_and_flush)(struct drm_device *, int context,
570 enum drm_lock_flags flags);
571 int (*dma_flush_unblock)(struct drm_device *, int context,
572 enum drm_lock_flags flags);
573 int (*context_ctor)(struct drm_device *dev, int context);
574 int (*context_dtor)(struct drm_device *dev, int context);
575 int (*kernel_context_switch)(struct drm_device *dev, int old,
576 int new);
577 int (*kernel_context_switch_unlock)(struct drm_device *dev);
578 void (*irq_preinstall)(struct drm_device *dev);
579 int (*irq_postinstall)(struct drm_device *dev);
580 void (*irq_uninstall)(struct drm_device *dev);
581 void (*irq_handler)(DRM_IRQ_ARGS);
582 u32 (*get_vblank_counter)(struct drm_device *dev, int crtc);
583 int (*enable_vblank)(struct drm_device *dev, int crtc);
584 void (*disable_vblank)(struct drm_device *dev, int crtc);
585
586 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */
587
588 /**
589 * Called by \c drm_device_is_agp. Typically used to determine if a
590 * card is really attached to AGP or not.
591 *
592 * \param dev DRM device handle
593 *
594 * \returns
595 * One of three values is returned depending on whether or not the
596 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
597 * (return of 1), or may or may not be AGP (return of 2).
598 */
599 int (*device_is_agp) (struct drm_device * dev);
600
601 drm_ioctl_desc_t *ioctls;
602 int max_ioctl;
603
604 int buf_priv_size;
605
606 int major;
607 int minor;
608 int patchlevel;
609 const char *name; /* Simple driver name */
610 const char *desc; /* Longer driver name */
611 const char *date; /* Date of last major changes. */
612
613 u32 driver_features;
614 };
615
616 /* Length for the array of resource pointers for drm_get_resource_*. */
617 #define DRM_MAX_PCI_RESOURCE 6
618
619 /**
620 * DRM device functions structure
621 */
622 struct drm_device {
623 struct drm_driver_info *driver;
624 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */
625
626 u_int16_t pci_device; /* PCI device id */
627 u_int16_t pci_vendor; /* PCI vendor id */
628
629 char *unique; /* Unique identifier: e.g., busid */
630 int unique_len; /* Length of unique field */
631 device_t device; /* Device instance from newbus */
632 struct cdev *devnode; /* Device number for mknod */
633 int if_version; /* Highest interface version set */
634
635 int flags; /* Flags to open(2) */
636
637 /* Locks */
638 struct mtx vbl_lock; /* protects vblank operations */
639 struct mtx dma_lock; /* protects dev->dma */
640 struct mtx irq_lock; /* protects irq condition checks */
641 struct mtx dev_lock; /* protects everything else */
642 DRM_SPINTYPE drw_lock;
643
644 /* Usage Counters */
645 int open_count; /* Outstanding files open */
646 int buf_use; /* Buffers in use -- cannot alloc */
647
648 /* Performance counters */
649 unsigned long counters;
650 enum drm_stat_type types[15];
651 atomic_t counts[15];
652
653 /* Authentication */
654 drm_file_list_t files;
655 drm_magic_head_t magiclist[DRM_HASH_SIZE];
656
657 /* Linked list of mappable regions. Protected by dev_lock */
658 drm_map_list_t maplist;
659 struct unrhdr *map_unrhdr;
660
661 drm_local_map_t **context_sareas;
662 int max_context;
663
664 drm_lock_data_t lock; /* Information on hardware lock */
665
666 /* DMA queues (contexts) */
667 drm_device_dma_t *dma; /* Optional pointer for DMA support */
668
669 /* Context support */
670 int irq; /* Interrupt used by board */
671 int irq_enabled; /* True if the irq handler is enabled */
672 int msi_enabled; /* MSI enabled */
673 int irqrid; /* Interrupt used by board */
674 struct resource *irqr; /* Resource for interrupt used by board */
675 void *irqh; /* Handle from bus_setup_intr */
676
677 /* Storage of resource pointers for drm_get_resource_* */
678 struct resource *pcir[DRM_MAX_PCI_RESOURCE];
679 int pcirid[DRM_MAX_PCI_RESOURCE];
680
681 int pci_domain;
682 int pci_bus;
683 int pci_slot;
684 int pci_func;
685
686 atomic_t context_flag; /* Context swapping flag */
687 int last_context; /* Last current context */
688
689 int vblank_disable_allowed;
690 struct callout vblank_disable_timer;
691 u32 max_vblank_count; /* size of vblank counter register */
692 struct drm_vblank_info *vblank; /* per crtc vblank info */
693 int num_crtcs;
694
695 struct sigio *buf_sigio; /* Processes waiting for SIGIO */
696
697 /* Sysctl support */
698 struct drm_sysctl_info *sysctl;
699
700 drm_agp_head_t *agp;
701 drm_sg_mem_t *sg; /* Scatter gather memory */
702 atomic_t *ctx_bitmap;
703 void *dev_private;
704 unsigned int agp_buffer_token;
705 drm_local_map_t *agp_buffer_map;
706
707 struct unrhdr *drw_unrhdr;
708 /* RB tree of drawable infos */
709 RB_HEAD(drawable_tree, bsd_drm_drawable_info) drw_head;
710 };
711
drm_core_check_feature(struct drm_device * dev,int feature)712 static __inline__ int drm_core_check_feature(struct drm_device *dev,
713 int feature)
714 {
715 return ((dev->driver->driver_features & feature) ? 1 : 0);
716 }
717
718 #if __OS_HAS_AGP
drm_core_has_AGP(struct drm_device * dev)719 static inline int drm_core_has_AGP(struct drm_device *dev)
720 {
721 return drm_core_check_feature(dev, DRIVER_USE_AGP);
722 }
723 #else
724 #define drm_core_has_AGP(dev) (0)
725 #endif
726
727 extern int drm_debug_flag;
728
729 /* Device setup support (drm_drv.c) */
730 int drm_probe(device_t kdev, drm_pci_id_list_t *idlist);
731 int drm_attach(device_t kdev, drm_pci_id_list_t *idlist);
732 void drm_close(void *data);
733 int drm_detach(device_t kdev);
734 d_ioctl_t drm_ioctl;
735 d_open_t drm_open;
736 d_read_t drm_read;
737 d_poll_t drm_poll;
738 d_mmap_t drm_mmap;
739 extern drm_local_map_t *drm_getsarea(struct drm_device *dev);
740
741 /* File operations helpers (drm_fops.c) */
742 extern int drm_open_helper(struct cdev *kdev, int flags, int fmt,
743 DRM_STRUCTPROC *p,
744 struct drm_device *dev);
745
746 /* Memory management support (drm_memory.c) */
747 void drm_mem_init(void);
748 void drm_mem_uninit(void);
749 void *drm_ioremap_wc(struct drm_device *dev, drm_local_map_t *map);
750 void *drm_ioremap(struct drm_device *dev, drm_local_map_t *map);
751 void drm_ioremapfree(drm_local_map_t *map);
752 int drm_mtrr_add(unsigned long offset, size_t size, int flags);
753 int drm_mtrr_del(int handle, unsigned long offset, size_t size, int flags);
754
755 int drm_context_switch(struct drm_device *dev, int old, int new);
756 int drm_context_switch_complete(struct drm_device *dev, int new);
757
758 int drm_ctxbitmap_init(struct drm_device *dev);
759 void drm_ctxbitmap_cleanup(struct drm_device *dev);
760 void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
761 int drm_ctxbitmap_next(struct drm_device *dev);
762
763 /* Locking IOCTL support (drm_lock.c) */
764 int drm_lock_take(struct drm_lock_data *lock_data,
765 unsigned int context);
766 int drm_lock_transfer(struct drm_lock_data *lock_data,
767 unsigned int context);
768 int drm_lock_free(struct drm_lock_data *lock_data,
769 unsigned int context);
770
771 /* Buffer management support (drm_bufs.c) */
772 unsigned long drm_get_resource_start(struct drm_device *dev,
773 unsigned int resource);
774 unsigned long drm_get_resource_len(struct drm_device *dev,
775 unsigned int resource);
776 void drm_rmmap(struct drm_device *dev, drm_local_map_t *map);
777 int drm_order(unsigned long size);
778 int drm_addmap(struct drm_device *dev, unsigned long offset,
779 unsigned long size,
780 enum drm_map_type type, enum drm_map_flags flags,
781 drm_local_map_t **map_ptr);
782 int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc *request);
783 int drm_addbufs_sg(struct drm_device *dev, struct drm_buf_desc *request);
784 int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc *request);
785
786 /* DMA support (drm_dma.c) */
787 int drm_dma_setup(struct drm_device *dev);
788 void drm_dma_takedown(struct drm_device *dev);
789 void drm_free_buffer(struct drm_device *dev, drm_buf_t *buf);
790 void drm_reclaim_buffers(struct drm_device *dev, struct drm_file *file_priv);
791 #define drm_core_reclaim_buffers drm_reclaim_buffers
792
793 /* IRQ support (drm_irq.c) */
794 int drm_irq_install(struct drm_device *dev);
795 int drm_irq_uninstall(struct drm_device *dev);
796 irqreturn_t drm_irq_handler(DRM_IRQ_ARGS);
797 void drm_driver_irq_preinstall(struct drm_device *dev);
798 void drm_driver_irq_postinstall(struct drm_device *dev);
799 void drm_driver_irq_uninstall(struct drm_device *dev);
800 void drm_handle_vblank(struct drm_device *dev, int crtc);
801 u32 drm_vblank_count(struct drm_device *dev, int crtc);
802 int drm_vblank_get(struct drm_device *dev, int crtc);
803 void drm_vblank_put(struct drm_device *dev, int crtc);
804 void drm_vblank_cleanup(struct drm_device *dev);
805 int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq);
806 int drm_vblank_init(struct drm_device *dev, int num_crtcs);
807 int drm_modeset_ctl(struct drm_device *dev, void *data,
808 struct drm_file *file_priv);
809
810 /* AGP/PCI Express/GART support (drm_agpsupport.c) */
811 int drm_device_is_agp(struct drm_device *dev);
812 int drm_device_is_pcie(struct drm_device *dev);
813 drm_agp_head_t *drm_agp_init(void);
814 int drm_agp_acquire(struct drm_device *dev);
815 int drm_agp_release(struct drm_device *dev);
816 int drm_agp_info(struct drm_device * dev, struct drm_agp_info *info);
817 int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode);
818 void *drm_agp_allocate_memory(size_t pages, u32 type);
819 int drm_agp_free_memory(void *handle);
820 int drm_agp_bind_memory(void *handle, off_t start);
821 int drm_agp_unbind_memory(void *handle);
822 int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request);
823 int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request);
824 int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
825 int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request);
826
827 /* Scatter Gather Support (drm_scatter.c) */
828 void drm_sg_cleanup(drm_sg_mem_t *entry);
829 int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request);
830
831 /* sysctl support (drm_sysctl.h) */
832 extern int drm_sysctl_init(struct drm_device *dev);
833 extern int drm_sysctl_cleanup(struct drm_device *dev);
834
835 /* ATI PCIGART support (ati_pcigart.c) */
836 int drm_ati_pcigart_init(struct drm_device *dev,
837 struct drm_ati_pcigart_info *gart_info);
838 int drm_ati_pcigart_cleanup(struct drm_device *dev,
839 struct drm_ati_pcigart_info *gart_info);
840
841 /* Locking IOCTL support (drm_drv.c) */
842 int drm_lock(struct drm_device *dev, void *data,
843 struct drm_file *file_priv);
844 int drm_unlock(struct drm_device *dev, void *data,
845 struct drm_file *file_priv);
846 int drm_version(struct drm_device *dev, void *data,
847 struct drm_file *file_priv);
848 int drm_setversion(struct drm_device *dev, void *data,
849 struct drm_file *file_priv);
850
851 /* Misc. IOCTL support (drm_ioctl.c) */
852 int drm_irq_by_busid(struct drm_device *dev, void *data,
853 struct drm_file *file_priv);
854 int drm_getunique(struct drm_device *dev, void *data,
855 struct drm_file *file_priv);
856 int drm_setunique(struct drm_device *dev, void *data,
857 struct drm_file *file_priv);
858 int drm_getmap(struct drm_device *dev, void *data,
859 struct drm_file *file_priv);
860 int drm_getclient(struct drm_device *dev, void *data,
861 struct drm_file *file_priv);
862 int drm_getstats(struct drm_device *dev, void *data,
863 struct drm_file *file_priv);
864 int drm_noop(struct drm_device *dev, void *data,
865 struct drm_file *file_priv);
866
867 /* Context IOCTL support (drm_context.c) */
868 int drm_resctx(struct drm_device *dev, void *data,
869 struct drm_file *file_priv);
870 int drm_addctx(struct drm_device *dev, void *data,
871 struct drm_file *file_priv);
872 int drm_modctx(struct drm_device *dev, void *data,
873 struct drm_file *file_priv);
874 int drm_getctx(struct drm_device *dev, void *data,
875 struct drm_file *file_priv);
876 int drm_switchctx(struct drm_device *dev, void *data,
877 struct drm_file *file_priv);
878 int drm_newctx(struct drm_device *dev, void *data,
879 struct drm_file *file_priv);
880 int drm_rmctx(struct drm_device *dev, void *data,
881 struct drm_file *file_priv);
882 int drm_setsareactx(struct drm_device *dev, void *data,
883 struct drm_file *file_priv);
884 int drm_getsareactx(struct drm_device *dev, void *data,
885 struct drm_file *file_priv);
886
887 /* Drawable IOCTL support (drm_drawable.c) */
888 int drm_adddraw(struct drm_device *dev, void *data,
889 struct drm_file *file_priv);
890 int drm_rmdraw(struct drm_device *dev, void *data,
891 struct drm_file *file_priv);
892 int drm_update_draw(struct drm_device *dev, void *data,
893 struct drm_file *file_priv);
894 struct drm_drawable_info *drm_get_drawable_info(struct drm_device *dev,
895 int handle);
896
897 /* Drawable support (drm_drawable.c) */
898 void drm_drawable_free_all(struct drm_device *dev);
899
900 /* Authentication IOCTL support (drm_auth.c) */
901 int drm_getmagic(struct drm_device *dev, void *data,
902 struct drm_file *file_priv);
903 int drm_authmagic(struct drm_device *dev, void *data,
904 struct drm_file *file_priv);
905
906 /* Buffer management support (drm_bufs.c) */
907 int drm_addmap_ioctl(struct drm_device *dev, void *data,
908 struct drm_file *file_priv);
909 int drm_rmmap_ioctl(struct drm_device *dev, void *data,
910 struct drm_file *file_priv);
911 int drm_addbufs(struct drm_device *dev, void *data,
912 struct drm_file *file_priv);
913 int drm_infobufs(struct drm_device *dev, void *data,
914 struct drm_file *file_priv);
915 int drm_markbufs(struct drm_device *dev, void *data,
916 struct drm_file *file_priv);
917 int drm_freebufs(struct drm_device *dev, void *data,
918 struct drm_file *file_priv);
919 int drm_mapbufs(struct drm_device *dev, void *data,
920 struct drm_file *file_priv);
921
922 /* DMA support (drm_dma.c) */
923 int drm_dma(struct drm_device *dev, void *data, struct drm_file *file_priv);
924
925 /* IRQ support (drm_irq.c) */
926 int drm_control(struct drm_device *dev, void *data,
927 struct drm_file *file_priv);
928 int drm_wait_vblank(struct drm_device *dev, void *data,
929 struct drm_file *file_priv);
930
931 /* AGP/GART support (drm_agpsupport.c) */
932 int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
933 struct drm_file *file_priv);
934 int drm_agp_release_ioctl(struct drm_device *dev, void *data,
935 struct drm_file *file_priv);
936 int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
937 struct drm_file *file_priv);
938 int drm_agp_info_ioctl(struct drm_device *dev, void *data,
939 struct drm_file *file_priv);
940 int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
941 struct drm_file *file_priv);
942 int drm_agp_free_ioctl(struct drm_device *dev, void *data,
943 struct drm_file *file_priv);
944 int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
945 struct drm_file *file_priv);
946 int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
947 struct drm_file *file_priv);
948
949 /* Scatter Gather Support (drm_scatter.c) */
950 int drm_sg_alloc_ioctl(struct drm_device *dev, void *data,
951 struct drm_file *file_priv);
952 int drm_sg_free(struct drm_device *dev, void *data,
953 struct drm_file *file_priv);
954
955 /* consistent PCI memory functions (drm_pci.c) */
956 drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
957 size_t align, dma_addr_t maxaddr);
958 void drm_pci_free(struct drm_device *dev, drm_dma_handle_t *dmah);
959
960 /* Inline replacements for drm_alloc and friends */
961 static __inline__ void *
drm_alloc(size_t size,struct malloc_type * area)962 drm_alloc(size_t size, struct malloc_type *area)
963 {
964 return malloc(size, area, M_NOWAIT);
965 }
966
967 static __inline__ void *
drm_calloc(size_t nmemb,size_t size,struct malloc_type * area)968 drm_calloc(size_t nmemb, size_t size, struct malloc_type *area)
969 {
970 return malloc(size * nmemb, area, M_NOWAIT | M_ZERO);
971 }
972
973 static __inline__ void *
drm_realloc(void * oldpt,size_t oldsize,size_t size,struct malloc_type * area)974 drm_realloc(void *oldpt, size_t oldsize, size_t size,
975 struct malloc_type *area)
976 {
977 return reallocf(oldpt, size, area, M_NOWAIT);
978 }
979
980 static __inline__ void
drm_free(void * pt,size_t size,struct malloc_type * area)981 drm_free(void *pt, size_t size, struct malloc_type *area)
982 {
983 free(pt, area);
984 }
985
986 /* Inline replacements for DRM_IOREMAP macros */
987 static __inline__ void
drm_core_ioremap_wc(struct drm_local_map * map,struct drm_device * dev)988 drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev)
989 {
990 map->virtual = drm_ioremap_wc(dev, map);
991 }
992 static __inline__ void
drm_core_ioremap(struct drm_local_map * map,struct drm_device * dev)993 drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev)
994 {
995 map->virtual = drm_ioremap(dev, map);
996 }
997 static __inline__ void
drm_core_ioremapfree(struct drm_local_map * map,struct drm_device * dev)998 drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev)
999 {
1000 if ( map->virtual && map->size )
1001 drm_ioremapfree(map);
1002 }
1003
1004 static __inline__ struct drm_local_map *
drm_core_findmap(struct drm_device * dev,unsigned long offset)1005 drm_core_findmap(struct drm_device *dev, unsigned long offset)
1006 {
1007 drm_local_map_t *map;
1008
1009 DRM_SPINLOCK_ASSERT(&dev->dev_lock);
1010 TAILQ_FOREACH(map, &dev->maplist, link) {
1011 if (offset == (unsigned long)map->handle)
1012 return map;
1013 }
1014 return NULL;
1015 }
1016
drm_core_dropmap(struct drm_map * map)1017 static __inline__ void drm_core_dropmap(struct drm_map *map)
1018 {
1019 }
1020
1021 #endif /* __KERNEL__ */
1022 #endif /* _DRM_P_H_ */
1023