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 #ifndef _DRM_P_H_
35 #define _DRM_P_H_
36
37 #if defined(_KERNEL) || defined(__KERNEL__)
38
39 struct drm_device;
40 struct drm_file;
41
42 #if defined(__NetBSD__) && defined(_KERNEL_OPT)
43 #include "opt_drm.h"
44 #endif
45
46 #include <sys/param.h>
47 #include <sys/queue.h>
48 #include <sys/malloc.h>
49 #include <sys/kernel.h>
50 #include <sys/module.h>
51 #include <sys/systm.h>
52 #include <sys/conf.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/sysctl.h>
63 #include <sys/bus.h>
64 #include <sys/signalvar.h>
65 #include <sys/poll.h>
66 #include <sys/tree.h>
67 #ifdef __FreeBSD__
68 #include <vm/vm.h>
69 #include <vm/pmap.h>
70 #include <vm/vm_extern.h>
71 #include <vm/vm_map.h>
72 #include <vm/vm_param.h>
73 #include <machine/resource.h>
74 #include <machine/param.h>
75 #endif
76 #include <machine/pmap.h>
77 #include <sys/bus.h>
78 #if defined(__i386__) || defined(__x86_64__)
79 #include <machine/specialreg.h>
80 #include <machine/sysarch.h>
81 #endif
82 #include <sys/endian.h>
83 #include <sys/mman.h>
84 #if defined( __FreeBSD__)
85 #include <sys/rman.h>
86 #include <sys/memrange.h>
87 #if __FreeBSD_version >= 800004
88 #include <dev/agp/agpvar.h>
89 #else /* __FreeBSD_version >= 800004 */
90 #include <pci/agpvar.h>
91 #endif /* __FreeBSD_version >= 800004 */
92 #include <sys/agpio.h>
93 #include <sys/mutex.h>
94 #include <dev/pci/pcivar.h>
95 #include <dev/pci/pcireg.h>
96 #include <sys/selinfo.h>
97 #include <sys/bus.h>
98 #elif defined(__NetBSD__)
99 #if defined(__i386__) || defined(__x86_64__)
100 #include <machine/mtrr.h>
101 #endif
102 #include <sys/vnode.h>
103 #include <sys/select.h>
104 #include <sys/device.h>
105 #include <sys/resourcevar.h>
106 #include <sys/agpio.h>
107 #include <sys/ttycom.h>
108 #include <sys/mman.h>
109 #include <sys/kauth.h>
110 #include <sys/types.h>
111 #include <sys/file.h>
112 #include <sys/atomic.h>
113 #include <sys/workqueue.h>
114 #include <uvm/uvm.h>
115 #include <dev/pci/pcireg.h>
116 #include <dev/pci/pcivar.h>
117 #include <dev/pci/agpvar.h>
118 #endif
119
120 #include "drm.h"
121 #include "drm_linux_list.h"
122 #include "drm_atomic.h"
123 #include "drm_internal.h"
124
125 #ifdef __FreeBSD__
126 #include <opt_drm.h>
127 #endif
128
129 #ifdef DRM_DEBUG
130 #undef DRM_DEBUG
131 #define DRM_DEBUG_DEFAULT_ON 1
132 #endif /* DRM_DEBUG */
133
134 #ifdef __FreeBSD__
135 #define DRM_KASSERT(x,y) KASSERT(x,y)
136 #else
137 #define DRM_KASSERT(x,y) KASSERT(x)
138 #define device_get_softc(x) device_private(x)
139 #define callout_deactivate(x) callout_stop(x)
140 #define callout_drain(x) callout_stop(x)
141 #endif
142
143 #if defined(DRM_LINUX) && DRM_LINUX && !defined(__amd64__)
144 #include <sys/file.h>
145 #include <sys/proc.h>
146 #include <machine/../linux/linux.h>
147 #include <machine/../linux/linux_proto.h>
148 #else
149 /* Either it was defined when it shouldn't be (FreeBSD amd64) or it isn't
150 * supported on this OS yet.
151 */
152 #undef DRM_LINUX
153 #define DRM_LINUX 0
154 #endif
155
156 /* driver capabilities and requirements mask */
157 #define DRIVER_USE_AGP 0x1
158 #define DRIVER_REQUIRE_AGP 0x2
159 #define DRIVER_USE_MTRR 0x4
160 #define DRIVER_PCI_DMA 0x8
161 #define DRIVER_SG 0x10
162 #define DRIVER_HAVE_DMA 0x20
163 #define DRIVER_HAVE_IRQ 0x40
164 #define DRIVER_DMA_QUEUE 0x100
165
166
167 #define DRM_HASH_SIZE 16 /* Size of key hash table */
168 #define DRM_KERNEL_CONTEXT 0 /* Change drm_resctx if changed */
169 #define DRM_RESERVED_CONTEXTS 1 /* Change drm_resctx if changed */
170
171 MALLOC_DECLARE(DRM_MEM_DMA);
172 MALLOC_DECLARE(DRM_MEM_SAREA);
173 MALLOC_DECLARE(DRM_MEM_DRIVER);
174 MALLOC_DECLARE(DRM_MEM_MAGIC);
175 MALLOC_DECLARE(DRM_MEM_IOCTLS);
176 MALLOC_DECLARE(DRM_MEM_MAPS);
177 MALLOC_DECLARE(DRM_MEM_BUFS);
178 MALLOC_DECLARE(DRM_MEM_SEGS);
179 MALLOC_DECLARE(DRM_MEM_PAGES);
180 MALLOC_DECLARE(DRM_MEM_FILES);
181 MALLOC_DECLARE(DRM_MEM_QUEUES);
182 MALLOC_DECLARE(DRM_MEM_CMDS);
183 MALLOC_DECLARE(DRM_MEM_MAPPINGS);
184 MALLOC_DECLARE(DRM_MEM_BUFLISTS);
185 MALLOC_DECLARE(DRM_MEM_AGPLISTS);
186 MALLOC_DECLARE(DRM_MEM_CTXBITMAP);
187 MALLOC_DECLARE(DRM_MEM_SGLISTS);
188 MALLOC_DECLARE(DRM_MEM_DRAWABLE);
189 MALLOC_DECLARE(DRM_MEM_MM);
190
191 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
192
193 /* Internal types and structures */
194 #define DRM_ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
195 #define DRM_MIN(a,b) ((a)<(b)?(a):(b))
196 #define DRM_MAX(a,b) ((a)>(b)?(a):(b))
197
198 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
199
200 #define __OS_HAS_AGP 1
201
202 #define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP)
203 #define DRM_DEV_UID 0
204 #define DRM_DEV_GID 0
205
206 #define wait_queue_head_t atomic_t
207 #define DRM_WAKEUP(w) wakeup((void *)w)
208 #define DRM_WAKEUP_INT(w) wakeup(w)
209 #define DRM_INIT_WAITQUEUE(queue) do {(void)(queue);} while (0)
210
211 #if defined(__FreeBSD__)
212 #define DRM_CDEV struct cdev *
213 #define DRM_CURPROC curthread
214 #define DRM_STRUCTPROC struct thread
215 #define DRM_STRUCTCDEVPROC struct thread
216 #define DRM_CDEVPROC_REAL(p) (p)
217 #define DRM_IOCTL_DATA caddr_t
218 #define DRM_SPINTYPE struct mtx
219 #define DRM_SPININIT(l,name) mtx_init(l, name, NULL, MTX_DEF)
220 #define DRM_SPINUNINIT(l) mtx_destroy(l)
221 #define DRM_SPINLOCK(l) mtx_lock(l)
222 #define DRM_SPINUNLOCK(u) mtx_unlock(u)
223 #define DRM_SPINLOCK_IRQSAVE(l, irqflags) do { \
224 mtx_lock(l); \
225 (void)irqflags; \
226 } while (0)
227 #define DRM_SPINUNLOCK_IRQRESTORE(u, irqflags) mtx_unlock(u)
228 #define DRM_SPINLOCK_ASSERT(l) mtx_assert(l, MA_OWNED)
229 #define DRM_CURRENTPID curthread->td_proc->p_pid
230 #define DRM_LOCK() mtx_lock(&dev->dev_lock)
231 #define DRM_UNLOCK() mtx_unlock(&dev->dev_lock)
232 #define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS)
233 #elif defined(__NetBSD__)
234 #define DRM_CDEV dev_t
235 #define DRM_CURPROC curproc
236 #define DRM_STRUCTPROC struct proc
237 #define DRM_STRUCTCDEVPROC struct lwp
238 #define DRM_CDEVPROC_REAL(l) (l)->l_proc
239 #define DRM_IOCTL_DATA void *
240 #define DRM_SPINTYPE kmutex_t
241 #define DRM_SPININIT(l,name) mutex_init(l, MUTEX_DEFAULT, /*IPL_NONE*/ IPL_VM)
242 #define DRM_SPINUNINIT(l) mutex_destroy(l)
243 #define DRM_SPINLOCK(l) mutex_enter(l)
244 #define DRM_SPINUNLOCK(u) mutex_exit(u)
245 #define DRM_SPINLOCK_IRQSAVE(l, irqflags) do { \
246 mutex_enter(l); \
247 (void)irqflags; \
248 } while (0)
249 #define DRM_SPINUNLOCK_IRQRESTORE(u, irqflags) mutex_exit(u)
250 #define DRM_SPINLOCK_ASSERT(l) mutex_owned(l)
251 #define DRM_CURRENTPID curproc->p_pid
252 #define DRM_LOCK() DRM_SPINLOCK(&dev->dev_lock)
253 #define DRM_UNLOCK() DRM_SPINUNLOCK(&dev->dev_lock)
254 #define DRM_SYSCTL_HANDLER_ARGS (SYSCTLFN_ARGS)
255 #define vslock(addr, len) uvm_vslock(curproc->p_vmspace, addr, len, VM_PROT_READ | VM_PROT_WRITE)
256 #define vsunlock(addr, len) uvm_vsunlock(curproc->p_vmspace, addr, len)
257 #endif
258
259 #define DRM_IRQ_ARGS void *arg
260 #if defined(__FreeBSD__)
261 typedef void irqreturn_t;
262 #define IRQ_HANDLED /* nothing */
263 #define IRQ_NONE /* nothing */
264 #elif defined(__NetBSD__)
265 typedef int irqreturn_t;
266 #define IRQ_HANDLED 1
267 #define IRQ_NONE 0
268 #endif
269
270 enum {
271 DRM_IS_NOT_AGP,
272 DRM_IS_AGP,
273 DRM_MIGHT_BE_AGP
274 };
275 #define DRM_AGP_MEM struct agp_memory_info
276
277 #if defined(__FreeBSD__)
278 #define drm_get_device_from_kdev(_kdev) (_kdev->si_drv1)
279 #elif defined(__NetBSD__)
280 #define drm_get_device_from_kdev(_kdev) ((minor(_kdev) < DRM_MAXUNITS) ? \
281 drm_units[minor(_kdev)] : NULL)
282 #endif
283
284 #if defined(__FreeBSD__)
285 #define PAGE_ALIGN(addr) round_page(addr)
286 /* DRM_SUSER returns true if the user is superuser */
287 #if __FreeBSD_version >= 700000
288 #define DRM_SUSER(p) (priv_check(p, PRIV_DRIVER) == 0)
289 #else
290 #define DRM_SUSER(p) (suser(p) == 0)
291 #endif
292 #define DRM_AGP_FIND_DEVICE() agp_find_device()
293 #define DRM_MTRR_WC MDF_WRITECOMBINE
294 #define jiffies ticks
295
296 #elif defined(__NetBSD__)
297
298 #define PAGE_ALIGN(addr) round_page(addr)
299 #define DRM_SUSER(p) (kauth_cred_getsvuid((p)->p_cred) == 0)
300 #define DRM_AGP_FIND_DEVICE() agp_find_device(0)
301 #ifdef MTRR_TYPE_WC
302 #define DRM_MTRR_WC MTRR_TYPE_WC
303 #else
304 #define DRM_MTRR_WC 0
305 #endif
306 #define jiffies getticks()
307
308 #define DRM_MAXUNITS 128
309 extern struct drm_device *drm_units[];
310
311 #endif
312
313 /* Capabilities taken from src/sys/dev/pci/pcireg.h. */
314 #ifndef PCIY_AGP
315 #define PCIY_AGP 0x02
316 #endif
317
318 #ifndef PCIY_EXPRESS
319 #define PCIY_EXPRESS 0x10
320 #endif
321
322 typedef unsigned long dma_addr_t;
323 #if defined(__FreeBSD__)
324 typedef u_int64_t u64;
325 typedef u_int32_t u32;
326 typedef u_int16_t u16;
327 typedef u_int8_t u8;
328 #else
329 typedef uint64_t u64;
330 typedef uint32_t u32;
331 typedef uint16_t u16;
332 typedef uint8_t u8;
333 #endif
334
335 /* DRM_READMEMORYBARRIER() prevents reordering of reads.
336 * DRM_WRITEMEMORYBARRIER() prevents reordering of writes.
337 * DRM_MEMORYBARRIER() prevents reordering of reads and writes.
338 */
339 #if defined(__NetBSD__)
340 #define DRM_READMEMORYBARRIER() membar_consumer()
341 #define DRM_WRITEMEMORYBARRIER() membar_producer()
342 #define DRM_MEMORYBARRIER() membar_sync()
343 #elif defined(__i386__)
344 #define DRM_READMEMORYBARRIER() __asm __volatile( \
345 "lock; addl $0,0(%%esp)" : : : "memory");
346 #define DRM_WRITEMEMORYBARRIER() __asm __volatile("" : : : "memory");
347 #define DRM_MEMORYBARRIER() __asm __volatile( \
348 "lock; addl $0,0(%%esp)" : : : "memory");
349 #elif defined(__alpha__)
350 #define DRM_READMEMORYBARRIER() alpha_mb();
351 #define DRM_WRITEMEMORYBARRIER() alpha_wmb();
352 #define DRM_MEMORYBARRIER() alpha_mb();
353 #elif defined(__amd64__)
354 #define DRM_READMEMORYBARRIER() __asm __volatile( \
355 "lock; addl $0,0(%%rsp)" : : : "memory");
356 #define DRM_WRITEMEMORYBARRIER() __asm __volatile("" : : : "memory");
357 #define DRM_MEMORYBARRIER() __asm __volatile( \
358 "lock; addl $0,0(%%rsp)" : : : "memory");
359 #endif
360
361 #define DRM_COPY_TO_USER(user, kern, size) \
362 copyout(kern, user, size)
363 #define DRM_COPY_FROM_USER(kern, user, size) \
364 copyin(user, kern, size)
365 #define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \
366 copyin(arg2, arg1, arg3)
367 #define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \
368 copyout(arg2, arg1, arg3)
369 #if defined(__NetBSD__)
370 #define DRM_GET_USER_UNCHECKED(val, uaddr) \
371 (ufetch_32((uint32_t *)(uaddr), &(val)), 0)
372 #elif defined(__FreeBSD__)
373 #define DRM_GET_USER_UNCHECKED(val, uaddr) \
374 ((val) = fuword32(uaddr), 0)
375 #else
376 #define DRM_GET_USER_UNCHECKED(val, uaddr) \
377 ((val) = fuword(uaddr), 0)
378 #endif
379
380 #define cpu_to_le32(x) htole32(x)
381 #define le32_to_cpu(x) le32toh(x)
382
383 #define DRM_HZ hz
384 #define DRM_UDELAY(udelay) DELAY(udelay)
385 #define DRM_TIME_SLICE (hz/20) /* Time slice for GLXContexts */
386
387 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
388 (_map) = (_dev)->context_sareas[_ctx]; \
389 } while(0)
390
391 #define LOCK_TEST_WITH_RETURN(dev, file_priv) \
392 do { \
393 if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) || \
394 dev->lock.file_priv != file_priv) { \
395 DRM_ERROR("%s called without lock held\n", \
396 __FUNCTION__); \
397 return EINVAL; \
398 } \
399 } while (0)
400
401 /* Returns -errno to shared code */
402 #if defined(__FreeBSD__)
403 #define DRM_WAIT_ON( ret, queue, timeout, condition ) \
404 for ( ret = 0 ; !ret && !(condition) ; ) { \
405 DRM_UNLOCK(); \
406 mtx_lock(&dev->irq_lock); \
407 if (!(condition)) \
408 ret = -mtx_sleep(&(queue), &dev->irq_lock, \
409 PCATCH, "drmwtq", (timeout)); \
410 mtx_unlock(&dev->irq_lock); \
411 DRM_LOCK(); \
412 }
413 #elif defined(__NetBSD__)
414 /* Returns -errno to shared code */
415 #define DRM_WAIT_ON( ret, queue, timeout, condition ) \
416 for ( ret = 0 ; !ret && !(condition) ; ) { \
417 DRM_UNLOCK(); \
418 mutex_enter(&dev->irq_lock); \
419 if (!(condition)) \
420 ret = -mtsleep(&(queue), PCATCH, \
421 "drmwtq", (timeout), &dev->irq_lock); \
422 mutex_exit(&dev->irq_lock); \
423 DRM_LOCK(); \
424 }
425 #endif
426
427 #define DRM_ERROR(fmt, ...) \
428 printf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \
429 DRM_CURRENTPID, __func__ , ##__VA_ARGS__)
430
431 #define DRM_INFO(fmt, ...) printf("info: [" DRM_NAME "] " fmt , ##__VA_ARGS__)
432
433 #define DRM_DEBUG(fmt, ...) do { \
434 if (drm_debug_flag) \
435 printf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \
436 __func__ , ##__VA_ARGS__); \
437 } while (0)
438
439 typedef struct drm_pci_id_list
440 {
441 int vendor;
442 int device;
443 long driver_private;
444 #if defined(__NetBSD__)
445 const char *name;
446 #else
447 char *name;
448 #endif
449 } drm_pci_id_list_t;
450
451 struct drm_msi_blacklist_entry
452 {
453 int vendor;
454 int device;
455 };
456
457 #define DRM_AUTH 0x1
458 #define DRM_MASTER 0x2
459 #define DRM_ROOT_ONLY 0x4
460 typedef struct drm_ioctl_desc {
461 unsigned long cmd;
462 int (*func)(struct drm_device *dev, void *data,
463 struct drm_file *file_priv);
464 int flags;
465 } drm_ioctl_desc_t;
466 /**
467 * Creates a driver or general drm_ioctl_desc array entry for the given
468 * ioctl, for use by drm_ioctl().
469 */
470 #define DRM_IOCTL_DEF(ioctl, func, flags) \
471 [DRM_IOCTL_NR(ioctl)] = {ioctl, func, flags}
472
473 typedef struct drm_magic_entry {
474 drm_magic_t magic;
475 struct drm_file *priv;
476 struct drm_magic_entry *next;
477 } drm_magic_entry_t;
478
479 typedef struct drm_magic_head {
480 struct drm_magic_entry *head;
481 struct drm_magic_entry *tail;
482 } drm_magic_head_t;
483
484 typedef struct drm_buf {
485 int idx; /* Index into master buflist */
486 int total; /* Buffer size */
487 int order; /* log-base-2(total) */
488 int used; /* Amount of buffer in use (for DMA) */
489 unsigned long offset; /* Byte offset (used internally) */
490 void *address; /* Address of buffer */
491 unsigned long bus_address; /* Bus address of buffer */
492 struct drm_buf *next; /* Kernel-only: used for free list */
493 __volatile__ int pending; /* On hardware DMA queue */
494 struct drm_file *file_priv; /* Unique identifier of holding process */
495 int context; /* Kernel queue for this buffer */
496 enum {
497 DRM_LIST_NONE = 0,
498 DRM_LIST_FREE = 1,
499 DRM_LIST_WAIT = 2,
500 DRM_LIST_PEND = 3,
501 DRM_LIST_PRIO = 4,
502 DRM_LIST_RECLAIM = 5
503 } list; /* Which list we're on */
504
505 int dev_priv_size; /* Size of buffer private stoarge */
506 void *dev_private; /* Per-buffer private storage */
507 } drm_buf_t;
508
509 typedef struct drm_freelist {
510 int initialized; /* Freelist in use */
511 atomic_t count; /* Number of free buffers */
512 drm_buf_t *next; /* End pointer */
513
514 int low_mark; /* Low water mark */
515 int high_mark; /* High water mark */
516 } drm_freelist_t;
517
518 typedef struct drm_dma_handle {
519 void *vaddr;
520 bus_addr_t busaddr;
521 bus_dma_tag_t tag;
522 bus_dmamap_t map;
523 #if defined(__NetBSD__)
524 size_t size;
525 size_t nsegs;
526 bus_dma_segment_t segs[1];
527 #endif
528 } drm_dma_handle_t;
529
530 typedef struct drm_buf_entry {
531 int buf_size;
532 int buf_count;
533 drm_buf_t *buflist;
534 int seg_count;
535 drm_dma_handle_t **seglist;
536 int page_order;
537
538 drm_freelist_t freelist;
539 } drm_buf_entry_t;
540
541 typedef TAILQ_HEAD(drm_file_list, drm_file) drm_file_list_t;
542 struct drm_file {
543 TAILQ_ENTRY(drm_file) link;
544 struct drm_device *dev;
545 int authenticated;
546 int master;
547 int minor;
548 pid_t pid;
549 uid_t uid;
550 drm_magic_t magic;
551 unsigned long ioctl_count;
552 void *driver_priv;
553 };
554
555 typedef struct drm_lock_data {
556 struct drm_hw_lock *hw_lock; /* Hardware lock */
557 struct drm_file *file_priv; /* Unique identifier of holding process (NULL is kernel)*/
558 int lock_queue; /* Queue of blocked processes */
559 unsigned long lock_time; /* Time of last lock in jiffies */
560 } drm_lock_data_t;
561
562 /* This structure, in the struct drm_device, is always initialized while the
563 * device
564 * is open. dev->dma_lock protects the incrementing of dev->buf_use, which
565 * when set marks that no further bufs may be allocated until device teardown
566 * occurs (when the last open of the device has closed). The high/low
567 * watermarks of bufs are only touched by the X Server, and thus not
568 * concurrently accessed, so no locking is needed.
569 */
570 typedef struct drm_device_dma {
571 drm_buf_entry_t bufs[DRM_MAX_ORDER+1];
572 int buf_count;
573 drm_buf_t **buflist; /* Vector of pointers info bufs */
574 int seg_count;
575 int page_count;
576 unsigned long *pagelist;
577 unsigned long byte_count;
578 enum {
579 _DRM_DMA_USE_AGP = 0x01,
580 _DRM_DMA_USE_SG = 0x02
581 } flags;
582 } drm_device_dma_t;
583
584 typedef struct drm_agp_mem {
585 void *handle;
586 unsigned long bound; /* address */
587 int pages;
588 struct drm_agp_mem *prev;
589 struct drm_agp_mem *next;
590 } drm_agp_mem_t;
591
592 typedef struct drm_agp_head {
593 device_t agpdev;
594 struct agp_info info;
595 const char *chipset;
596 drm_agp_mem_t *memory;
597 unsigned long mode;
598 int enabled;
599 int acquired;
600 unsigned long base;
601 int mtrr;
602 int cant_use_aperture;
603 unsigned long page_mask;
604 } drm_agp_head_t;
605
606 typedef struct drm_sg_mem {
607 unsigned long handle;
608 void *virtual;
609 int pages;
610 dma_addr_t *busaddr;
611 struct drm_dma_handle *sg_dmah; /* Handle for sg_pages */
612 struct drm_dma_handle *dmah; /* Handle to PCI memory */
613 /* for ATI PCIGART table */
614 } drm_sg_mem_t;
615
616 typedef TAILQ_HEAD(drm_map_list, drm_local_map) drm_map_list_t;
617
618 #if defined(__NetBSD__)
619 typedef struct {
620 int mapped;
621 int maptype;
622 bus_addr_t base;
623 bus_size_t size;
624 bus_space_handle_t bsh;
625 int flags;
626 void * vaddr;
627 } pci_map_data_t;
628
629 /* XXX */
630 #define readl(va) (*(volatile u_int32_t *) (va))
631 #endif
632
633 typedef struct drm_local_map {
634 unsigned long offset; /* Physical address (0 for SAREA)*/
635 unsigned long size; /* Physical size (bytes) */
636 enum drm_map_type type; /* Type of memory mapped */
637 enum drm_map_flags flags; /* Flags */
638 void *handle; /* User-space: "Handle" to pass to mmap */
639 /* Kernel-space: kernel-virtual address */
640 int mtrr; /* Boolean: MTRR used */
641 /* Private data */
642 int rid; /* PCI resource ID for bus_space */
643 #if defined(__FreeBSD__)
644 struct resource *bsr;
645 #endif
646 bus_space_tag_t bst;
647 bus_space_handle_t bsh;
648 drm_dma_handle_t *dmah;
649 #if defined(__NetBSD__)
650 pci_map_data_t *fullmap;
651 bus_size_t mapsize;
652 #endif
653 TAILQ_ENTRY(drm_local_map) link;
654 } drm_local_map_t;
655
656 TAILQ_HEAD(drm_vbl_sig_list, drm_vbl_sig);
657 typedef struct drm_vbl_sig {
658 TAILQ_ENTRY(drm_vbl_sig) link;
659 unsigned int sequence;
660 int signo;
661 int pid;
662 } drm_vbl_sig_t;
663
664 struct drm_vblank_info {
665 wait_queue_head_t queue; /* vblank wait queue */
666 atomic_t count; /* number of VBLANK interrupts */
667 /* (driver must alloc the right number of counters) */
668 struct drm_vbl_sig_list sigs; /* signal list to send on VBLANK */
669 atomic_t refcount; /* number of users of vblank interrupts */
670 u32 last; /* protected by dev->vbl_lock, used */
671 /* for wraparound handling */
672 int enabled; /* so we don't call enable more than */
673 /* once per disable */
674 int inmodeset; /* Display driver is setting mode */
675 };
676
677 /* location of GART table */
678 #define DRM_ATI_GART_MAIN 1
679 #define DRM_ATI_GART_FB 2
680
681 #define DRM_ATI_GART_PCI 1
682 #define DRM_ATI_GART_PCIE 2
683 #define DRM_ATI_GART_IGP 3
684
685 struct drm_ati_pcigart_info {
686 int gart_table_location;
687 int gart_reg_if;
688 void *addr;
689 dma_addr_t bus_addr;
690 dma_addr_t table_mask;
691 dma_addr_t member_mask;
692 struct drm_dma_handle *table_handle;
693 drm_local_map_t mapping;
694 int table_size;
695 };
696
697 #ifndef DMA_BIT_MASK
698 #define DMA_BIT_MASK(n) ((dma_addr_t)(((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1))
699 #endif
700
701 #define upper_32_bits(n) ((u32)(((n) >> 16) >> 16))
702
703 struct drm_driver_info {
704 int (*load)(struct drm_device *, unsigned long flags);
705 int (*firstopen)(struct drm_device *);
706 int (*open)(struct drm_device *, struct drm_file *);
707 void (*preclose)(struct drm_device *, struct drm_file *file_priv);
708 void (*postclose)(struct drm_device *, struct drm_file *);
709 void (*lastclose)(struct drm_device *);
710 int (*unload)(struct drm_device *);
711 void (*reclaim_buffers_locked)(struct drm_device *,
712 struct drm_file *file_priv);
713 int (*dma_ioctl)(struct drm_device *dev, void *data,
714 struct drm_file *file_priv);
715 void (*dma_ready)(struct drm_device *);
716 int (*dma_quiescent)(struct drm_device *);
717 int (*dma_flush_block_and_flush)(struct drm_device *, int context,
718 enum drm_lock_flags flags);
719 int (*dma_flush_unblock)(struct drm_device *, int context,
720 enum drm_lock_flags flags);
721 int (*context_ctor)(struct drm_device *dev, int context);
722 int (*context_dtor)(struct drm_device *dev, int context);
723 int (*kernel_context_switch)(struct drm_device *dev, int old,
724 int new);
725 int (*kernel_context_switch_unlock)(struct drm_device *dev);
726 void (*irq_preinstall)(struct drm_device *dev);
727 int (*irq_postinstall)(struct drm_device *dev);
728 void (*irq_uninstall)(struct drm_device *dev);
729 irqreturn_t (*irq_handler)(DRM_IRQ_ARGS);
730 u32 (*get_vblank_counter)(struct drm_device *dev, unsigned int crtc);
731 int (*enable_vblank)(struct drm_device *dev, unsigned int crtc);
732 void (*disable_vblank)(struct drm_device *dev, unsigned int crtc);
733
734 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */
735
736 /**
737 * Called by \c drm_device_is_agp. Typically used to determine if a
738 * card is really attached to AGP or not.
739 *
740 * \param dev DRM device handle
741 *
742 * \returns
743 * One of three values is returned depending on whether or not the
744 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
745 * (return of 1), or may or may not be AGP (return of 2).
746 */
747 int (*device_is_agp) (struct drm_device * dev);
748
749 drm_ioctl_desc_t *ioctls;
750 int max_ioctl;
751
752 int buf_priv_size;
753
754 int major;
755 int minor;
756 int patchlevel;
757 const char *name; /* Simple driver name */
758 const char *desc; /* Longer driver name */
759 const char *date; /* Date of last major changes. */
760
761 u32 driver_features;
762 };
763
764 /* Length for the array of resource pointers for drm_get_resource_*. */
765 #define DRM_MAX_PCI_RESOURCE 6
766
767 /**
768 * DRM device functions structure
769 */
770 struct drm_device {
771 struct drm_driver_info *driver;
772 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */
773
774 u_int16_t pci_device; /* PCI device id */
775 u_int16_t pci_vendor; /* PCI vendor id */
776
777 char *unique; /* Unique identifier: e.g., busid */
778 int unique_len; /* Length of unique field */
779 device_t device; /* Device instance from newbus */
780 #if defined(__FreeBSD__)
781 struct cdev *devnode; /* Device number for mknod */
782 #endif
783 int if_version; /* Highest interface version set */
784
785 int flags; /* Flags to open(2) */
786
787 /* Locks */
788 DRM_SPINTYPE vbl_lock; /* protects vblank operations */
789 DRM_SPINTYPE dma_lock; /* protects dev->dma */
790 DRM_SPINTYPE irq_lock; /* protects irq condition checks */
791 DRM_SPINTYPE dev_lock; /* protects everything else */
792 DRM_SPINTYPE drw_lock;
793
794 /* Usage Counters */
795 int open_count; /* Outstanding files open */
796 int buf_use; /* Buffers in use -- cannot alloc */
797
798 /* Performance counters */
799 unsigned long counters;
800 enum drm_stat_type types[15];
801 atomic_t counts[15];
802
803 /* Authentication */
804 drm_file_list_t files;
805 drm_magic_head_t magiclist[DRM_HASH_SIZE];
806
807 /* Linked list of mappable regions. Protected by dev_lock */
808 drm_map_list_t maplist;
809
810 drm_local_map_t **context_sareas;
811 int max_context;
812
813 drm_lock_data_t lock; /* Information on hardware lock */
814
815 /* DMA queues (contexts) */
816 drm_device_dma_t *dma; /* Optional pointer for DMA support */
817
818 /* Context support */
819 int irq; /* Interrupt used by board */
820 int irq_enabled; /* True if the irq handler is enabled */
821 int msi_enabled; /* MSI enabled */
822 #if defined(__FreeBSD__)
823 int irqrid; /* Interrupt used by board */
824 struct resource *irqr; /* Resource for interrupt used by board */
825
826 /* Storage of resource pointers for drm_get_resource_* */
827 struct resource *pcir[DRM_MAX_PCI_RESOURCE];
828 int pcirid[DRM_MAX_PCI_RESOURCE];
829 #elif defined(__NetBSD__)
830 struct pci_attach_args pa;
831 pci_map_data_t pci_map_data[DRM_MAX_PCI_RESOURCE];
832 pci_map_data_t agp_map_data[DRM_MAX_PCI_RESOURCE];
833 dev_t kdev;
834 #endif
835 void *irqh; /* Handle from bus_setup_intr */
836
837 int pci_domain;
838 int pci_bus;
839 int pci_slot;
840 int pci_func;
841
842 atomic_t context_flag; /* Context swapping flag */
843 int last_context; /* Last current context */
844
845 int vblank_disable_allowed;
846 atomic_t vbl_signal_pending; /* number of signals pending on all crtcs */
847 struct callout vblank_disable_timer;
848 u32 max_vblank_count; /* size of vblank counter register */
849 struct drm_vblank_info *vblank; /* per crtc vblank info */
850 int num_crtcs;
851
852 #if defined(__FreeBSD__)
853 struct sigio *buf_sigio; /* Processes waiting for SIGIO */
854 #elif defined(__NetBSD__)
855 pid_t buf_pgid;
856 #endif
857
858 /* Sysctl support */
859 struct drm_sysctl_info *sysctl;
860
861 drm_agp_head_t *agp;
862 drm_sg_mem_t *sg; /* Scatter gather memory */
863 atomic_t *ctx_bitmap;
864 void *dev_private;
865 unsigned int agp_buffer_token;
866 drm_local_map_t *agp_buffer_map;
867
868 #if defined(__FreeBSD__)
869 struct unrhdr *drw_unrhdr;
870 #elif defined(__NetBSD__)
871 int drw_no;
872 #endif
873 /* RB tree of drawable infos */
874 RB_HEAD(drawable_tree, bsd_drm_drawable_info) drw_head;
875 };
876
drm_core_check_feature(struct drm_device * dev,int feature)877 static __inline__ int drm_core_check_feature(struct drm_device *dev,
878 int feature)
879 {
880 return ((dev->driver->driver_features & feature) ? 1 : 0);
881 }
882
883 #if __OS_HAS_AGP
drm_core_has_AGP(struct drm_device * dev)884 static inline int drm_core_has_AGP(struct drm_device *dev)
885 {
886 return drm_core_check_feature(dev, DRIVER_USE_AGP);
887 }
888 #else
889 #define drm_core_has_AGP(dev) (0)
890 #endif
891
892 #if defined(__FreeBSD__)
893
894 #define DRM_READ8(map, offset) \
895 *(volatile u_int8_t *)(((vm_offset_t)(map)->handle) + \
896 (vm_offset_t)(offset))
897 #define DRM_READ16(map, offset) \
898 *(volatile u_int16_t *)(((vm_offset_t)(map)->handle) + \
899 (vm_offset_t)(offset))
900 #define DRM_READ32(map, offset) \
901 *(volatile u_int32_t *)(((vm_offset_t)(map)->handle) + \
902 (vm_offset_t)(offset))
903 #define DRM_WRITE8(map, offset, val) \
904 *(volatile u_int8_t *)(((vm_offset_t)(map)->handle) + \
905 (vm_offset_t)(offset)) = val
906 #define DRM_WRITE16(map, offset, val) \
907 *(volatile u_int16_t *)(((vm_offset_t)(map)->handle) + \
908 (vm_offset_t)(offset)) = val
909 #define DRM_WRITE32(map, offset, val) \
910 *(volatile u_int32_t *)(((vm_offset_t)(map)->handle) + \
911 (vm_offset_t)(offset)) = val
912
913 #define DRM_VERIFYAREA_READ( uaddr, size ) \
914 (!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ))
915
916 #elif defined(__NetBSD__)
917
918 typedef vaddr_t vm_offset_t;
919
920 #define DRM_IS_BUS_SPACE(map) ((map)->type == _DRM_REGISTERS || \
921 (map)->type == _DRM_CONSISTENT)
922
923 static __inline__ u_int8_t
DRM_READ8(drm_local_map_t * map,bus_size_t offset)924 DRM_READ8(drm_local_map_t *map, bus_size_t offset)
925 {
926 if (DRM_IS_BUS_SPACE(map))
927 return bus_space_read_1(map->bst, map->bsh, offset);
928 else
929 return *(volatile u_int8_t *)((vaddr_t)map->handle + offset);
930 }
931
932 static __inline__ u_int16_t
DRM_READ16(drm_local_map_t * map,bus_size_t offset)933 DRM_READ16(drm_local_map_t *map, bus_size_t offset)
934 {
935 if (DRM_IS_BUS_SPACE(map))
936 return bus_space_read_2(map->bst, map->bsh, offset);
937 else
938 return *(volatile u_int16_t *)((vaddr_t)map->handle + offset);
939 }
940
941 static __inline__ u_int32_t
DRM_READ32(drm_local_map_t * map,bus_size_t offset)942 DRM_READ32(drm_local_map_t *map, bus_size_t offset)
943 {
944 if (DRM_IS_BUS_SPACE(map))
945 return bus_space_read_4(map->bst, map->bsh, offset);
946 else
947 return *(volatile u_int32_t *)((vaddr_t)map->handle + offset);
948 }
949
950 static __inline__ void
DRM_WRITE8(drm_local_map_t * map,bus_size_t offset,u_int8_t val)951 DRM_WRITE8(drm_local_map_t *map, bus_size_t offset, u_int8_t val)
952 {
953 if (DRM_IS_BUS_SPACE(map))
954 bus_space_write_1(map->bst, map->bsh, offset, val);
955 else
956 *(volatile u_int8_t *)((vaddr_t)map->handle + offset) = val;
957 }
958
959 static __inline__ void
DRM_WRITE16(drm_local_map_t * map,bus_size_t offset,u_int16_t val)960 DRM_WRITE16(drm_local_map_t *map, bus_size_t offset, u_int16_t val)
961 {
962 if (DRM_IS_BUS_SPACE(map))
963 bus_space_write_2(map->bst, map->bsh, offset, val);
964 else
965 *(volatile u_int16_t *)((vaddr_t)map->handle + offset) = val;
966 }
967
968 static __inline__ void
DRM_WRITE32(drm_local_map_t * map,bus_size_t offset,u_int32_t val)969 DRM_WRITE32(drm_local_map_t *map, bus_size_t offset, u_int32_t val)
970 {
971 if (DRM_IS_BUS_SPACE(map))
972 bus_space_write_4(map->bst, map->bsh, offset, val);
973 else
974 *(volatile u_int32_t *)((vaddr_t)map->handle + offset) = val;
975 }
976
977 #define DRM_VERIFYAREA_READ( uaddr, size ) \
978 (!uvm_map_checkprot(&(curproc->p_vmspace->vm_map), \
979 (vaddr_t)uaddr, (vaddr_t)uaddr+size, UVM_PROT_READ))
980
981 #endif
982
983 extern int drm_debug_flag;
984
985 /* Device setup support (drm_drv.c) */
986 #if defined(__FreeBSD__)
987 int drm_probe(device_t kdev, drm_pci_id_list_t *idlist);
988 int drm_attach(device_t kdev, drm_pci_id_list_t *idlist);
989 void drm_close(void *data);
990 int drm_detach(device_t kdev);
991 d_ioctl_t drm_ioctl;
992 d_open_t drm_open;
993 d_read_t drm_read;
994 d_poll_t drm_poll;
995 d_mmap_t drm_mmap;
996 #elif defined(__NetBSD__)
997 int drm_probe(struct pci_attach_args *pa, drm_pci_id_list_t *idlist);
998 void drm_attach(device_t kdev, struct pci_attach_args *pa, drm_pci_id_list_t *idlist);
999 int drm_detach(device_t self, int flags);
1000 dev_type_ioctl(drm_ioctl);
1001 dev_type_open(drm_open);
1002 dev_type_close(drm_close);
1003 dev_type_read(drm_read);
1004 dev_type_poll(drm_poll);
1005 dev_type_mmap(drm_mmap);
1006 #endif
1007 extern drm_local_map_t *drm_getsarea(struct drm_device *dev);
1008
1009 int drm_close_pid(struct drm_device *dev, struct drm_file *priv, pid_t pid);
1010
1011 /* File operations helpers (drm_fops.c) */
1012 #if defined(__FreeBSD__)
1013 extern int drm_open_helper(struct cdev *kdev, int flags, int fmt,
1014 DRM_STRUCTPROC *p,
1015 struct drm_device *dev);
1016 #elif defined(__NetBSD__)
1017 extern struct drm_file *drm_find_file_by_proc(struct drm_device *dev,
1018 struct proc *p);
1019 extern int drm_open_helper(dev_t kdev, int flags, int fmt,
1020 struct proc *p, struct drm_device *dev);
1021 #endif
1022
1023 /* Memory management support (drm_memory.c) */
1024 void drm_mem_init(void);
1025 void drm_mem_uninit(void);
1026 void *drm_ioremap_wc(struct drm_device *dev, drm_local_map_t *map);
1027 void *drm_ioremap(struct drm_device *dev, drm_local_map_t *map);
1028 void drm_ioremapfree(drm_local_map_t *map);
1029 int drm_mtrr_add(unsigned long offset, size_t size, int flags);
1030 int drm_mtrr_del(int handle, unsigned long offset, size_t size, int flags);
1031
1032 int drm_context_switch(struct drm_device *dev, int old, int new);
1033 int drm_context_switch_complete(struct drm_device *dev, int new);
1034
1035 int drm_ctxbitmap_init(struct drm_device *dev);
1036 void drm_ctxbitmap_cleanup(struct drm_device *dev);
1037 void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
1038 int drm_ctxbitmap_next(struct drm_device *dev);
1039
1040 /* Locking IOCTL support (drm_lock.c) */
1041 int drm_lock_take(struct drm_lock_data *lock_data,
1042 unsigned int context);
1043 int drm_lock_transfer(struct drm_lock_data *lock_data,
1044 unsigned int context);
1045 int drm_lock_free(struct drm_lock_data *lock_data,
1046 unsigned int context);
1047
1048 /* Buffer management support (drm_bufs.c) */
1049 unsigned long drm_get_resource_start(struct drm_device *dev,
1050 unsigned int resource);
1051 unsigned long drm_get_resource_len(struct drm_device *dev,
1052 unsigned int resource);
1053 void drm_rmmap(struct drm_device *dev, drm_local_map_t *map);
1054 int drm_order(unsigned long size);
1055 int drm_addmap(struct drm_device *dev, unsigned long offset,
1056 unsigned long size,
1057 enum drm_map_type type, enum drm_map_flags flags,
1058 drm_local_map_t **map_ptr);
1059 int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc *request);
1060 int drm_addbufs_sg(struct drm_device *dev, struct drm_buf_desc *request);
1061 int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc *request);
1062
1063 /* DMA support (drm_dma.c) */
1064 int drm_dma_setup(struct drm_device *dev);
1065 void drm_dma_takedown(struct drm_device *dev);
1066 void drm_free_buffer(struct drm_device *dev, drm_buf_t *buf);
1067 void drm_reclaim_buffers(struct drm_device *dev, struct drm_file *file_priv);
1068 #define drm_core_reclaim_buffers drm_reclaim_buffers
1069
1070 /* IRQ support (drm_irq.c) */
1071 int drm_irq_install(struct drm_device *dev);
1072 int drm_irq_uninstall(struct drm_device *dev);
1073 irqreturn_t drm_irq_handler(DRM_IRQ_ARGS);
1074 void drm_driver_irq_preinstall(struct drm_device *dev);
1075 void drm_driver_irq_postinstall(struct drm_device *dev);
1076 void drm_driver_irq_uninstall(struct drm_device *dev);
1077 void drm_handle_vblank(struct drm_device *dev, unsigned int crtc);
1078 u32 drm_vblank_count(struct drm_device *dev, unsigned int crtc);
1079 int drm_vblank_get(struct drm_device *dev, unsigned int crtc);
1080 void drm_vblank_put(struct drm_device *dev, unsigned int crtc);
1081 void drm_vblank_cleanup(struct drm_device *dev);
1082 int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq);
1083 int drm_vblank_init(struct drm_device *dev, int num_crtcs);
1084 void drm_vbl_send_signals(struct drm_device *dev, unsigned int crtc);
1085 int drm_modeset_ctl(struct drm_device *dev, void *data,
1086 struct drm_file *file_priv);
1087
1088 /* AGP/PCI Express/GART support (drm_agpsupport.c) */
1089 int drm_device_is_agp(struct drm_device *dev);
1090 int drm_device_is_pcie(struct drm_device *dev);
1091 drm_agp_head_t *drm_agp_init(struct drm_device *dev);
1092 int drm_agp_acquire(struct drm_device *dev);
1093 int drm_agp_release(struct drm_device *dev);
1094 int drm_agp_info(struct drm_device * dev, struct drm_agp_info *info);
1095 int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode);
1096 void *drm_agp_allocate_memory(size_t pages, u32 type);
1097 int drm_agp_free_memory(void *handle);
1098 int drm_agp_bind_memory(void *handle, off_t start);
1099 int drm_agp_unbind_memory(void *handle);
1100 int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request);
1101 int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request);
1102 int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
1103 int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request);
1104
1105 /* Scatter Gather Support (drm_scatter.c) */
1106 void drm_sg_cleanup(drm_sg_mem_t *entry);
1107 int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request);
1108
1109 /* sysctl support (drm_sysctl.h) */
1110 extern int drm_sysctl_init(struct drm_device *dev);
1111 extern int drm_sysctl_cleanup(struct drm_device *dev);
1112
1113 /* ATI PCIGART support (ati_pcigart.c) */
1114 int drm_ati_pcigart_init(struct drm_device *dev,
1115 struct drm_ati_pcigart_info *gart_info);
1116 int drm_ati_pcigart_cleanup(struct drm_device *dev,
1117 struct drm_ati_pcigart_info *gart_info);
1118
1119 /* Locking IOCTL support (drm_drv.c) */
1120 int drm_lock(struct drm_device *dev, void *data,
1121 struct drm_file *file_priv);
1122 int drm_unlock(struct drm_device *dev, void *data,
1123 struct drm_file *file_priv);
1124 int drm_version(struct drm_device *dev, void *data,
1125 struct drm_file *file_priv);
1126 int drm_setversion(struct drm_device *dev, void *data,
1127 struct drm_file *file_priv);
1128
1129 /* Misc. IOCTL support (drm_ioctl.c) */
1130 int drm_irq_by_busid(struct drm_device *dev, void *data,
1131 struct drm_file *file_priv);
1132 int drm_getunique(struct drm_device *dev, void *data,
1133 struct drm_file *file_priv);
1134 int drm_setunique(struct drm_device *dev, void *data,
1135 struct drm_file *file_priv);
1136 int drm_getmap(struct drm_device *dev, void *data,
1137 struct drm_file *file_priv);
1138 int drm_getclient(struct drm_device *dev, void *data,
1139 struct drm_file *file_priv);
1140 int drm_getstats(struct drm_device *dev, void *data,
1141 struct drm_file *file_priv);
1142 int drm_noop(struct drm_device *dev, void *data,
1143 struct drm_file *file_priv);
1144
1145 /* Context IOCTL support (drm_context.c) */
1146 int drm_resctx(struct drm_device *dev, void *data,
1147 struct drm_file *file_priv);
1148 int drm_addctx(struct drm_device *dev, void *data,
1149 struct drm_file *file_priv);
1150 int drm_modctx(struct drm_device *dev, void *data,
1151 struct drm_file *file_priv);
1152 int drm_getctx(struct drm_device *dev, void *data,
1153 struct drm_file *file_priv);
1154 int drm_switchctx(struct drm_device *dev, void *data,
1155 struct drm_file *file_priv);
1156 int drm_newctx(struct drm_device *dev, void *data,
1157 struct drm_file *file_priv);
1158 int drm_rmctx(struct drm_device *dev, void *data,
1159 struct drm_file *file_priv);
1160 int drm_setsareactx(struct drm_device *dev, void *data,
1161 struct drm_file *file_priv);
1162 int drm_getsareactx(struct drm_device *dev, void *data,
1163 struct drm_file *file_priv);
1164
1165 /* Drawable IOCTL support (drm_drawable.c) */
1166 int drm_adddraw(struct drm_device *dev, void *data,
1167 struct drm_file *file_priv);
1168 int drm_rmdraw(struct drm_device *dev, void *data,
1169 struct drm_file *file_priv);
1170 int drm_update_draw(struct drm_device *dev, void *data,
1171 struct drm_file *file_priv);
1172 struct drm_drawable_info *drm_get_drawable_info(struct drm_device *dev,
1173 int handle);
1174
1175 /* Drawable support (drm_drawable.c) */
1176 void drm_drawable_free_all(struct drm_device *dev);
1177
1178 /* Authentication IOCTL support (drm_auth.c) */
1179 int drm_getmagic(struct drm_device *dev, void *data,
1180 struct drm_file *file_priv);
1181 int drm_authmagic(struct drm_device *dev, void *data,
1182 struct drm_file *file_priv);
1183
1184 /* Buffer management support (drm_bufs.c) */
1185 int drm_addmap_ioctl(struct drm_device *dev, void *data,
1186 struct drm_file *file_priv);
1187 int drm_rmmap_ioctl(struct drm_device *dev, void *data,
1188 struct drm_file *file_priv);
1189 int drm_addbufs(struct drm_device *dev, void *data,
1190 struct drm_file *file_priv);
1191 int drm_infobufs(struct drm_device *dev, void *data,
1192 struct drm_file *file_priv);
1193 int drm_markbufs(struct drm_device *dev, void *data,
1194 struct drm_file *file_priv);
1195 int drm_freebufs(struct drm_device *dev, void *data,
1196 struct drm_file *file_priv);
1197 int drm_mapbufs(struct drm_device *dev, void *data,
1198 struct drm_file *file_priv);
1199
1200 /* DMA support (drm_dma.c) */
1201 int drm_dma(struct drm_device *dev, void *data, struct drm_file *file_priv);
1202
1203 /* IRQ support (drm_irq.c) */
1204 int drm_control(struct drm_device *dev, void *data,
1205 struct drm_file *file_priv);
1206 int drm_wait_vblank(struct drm_device *dev, void *data,
1207 struct drm_file *file_priv);
1208
1209 /* AGP/GART support (drm_agpsupport.c) */
1210 int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
1211 struct drm_file *file_priv);
1212 int drm_agp_release_ioctl(struct drm_device *dev, void *data,
1213 struct drm_file *file_priv);
1214 int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
1215 struct drm_file *file_priv);
1216 int drm_agp_info_ioctl(struct drm_device *dev, void *data,
1217 struct drm_file *file_priv);
1218 int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
1219 struct drm_file *file_priv);
1220 int drm_agp_free_ioctl(struct drm_device *dev, void *data,
1221 struct drm_file *file_priv);
1222 int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
1223 struct drm_file *file_priv);
1224 int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
1225 struct drm_file *file_priv);
1226
1227 /* Scatter Gather Support (drm_scatter.c) */
1228 int drm_sg_alloc_ioctl(struct drm_device *dev, void *data,
1229 struct drm_file *file_priv);
1230 int drm_sg_free(struct drm_device *dev, void *data,
1231 struct drm_file *file_priv);
1232
1233 /* consistent PCI memory functions (drm_pci.c) */
1234 drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
1235 size_t align, dma_addr_t maxaddr);
1236 void drm_pci_free(struct drm_device *dev, drm_dma_handle_t *dmah);
1237
1238 /* Inline replacements for drm_alloc and friends */
1239 static __inline__ void *
drm_alloc(size_t size,struct malloc_type * area)1240 drm_alloc(size_t size, struct malloc_type *area)
1241 {
1242 return malloc(size, area, M_NOWAIT);
1243 }
1244
1245 static __inline__ void *
drm_calloc(size_t nmemb,size_t size,struct malloc_type * area)1246 drm_calloc(size_t nmemb, size_t size, struct malloc_type *area)
1247 {
1248 return malloc(size * nmemb, area, M_NOWAIT | M_ZERO);
1249 }
1250
1251 static __inline__ void *
drm_realloc(void * oldpt,size_t oldsize,size_t size,struct malloc_type * area)1252 drm_realloc(void *oldpt, size_t oldsize, size_t size,
1253 struct malloc_type *area)
1254 {
1255 #if defined(__FreeBSD__)
1256 return reallocf(oldpt, size, area, M_NOWAIT);
1257 #elif defined(__NetBSD__)
1258 void *pt;
1259
1260 pt = malloc(size, area, M_NOWAIT);
1261 if (pt == NULL)
1262 return NULL;
1263 if (oldpt && oldsize) {
1264 memcpy(pt, oldpt, oldsize);
1265 free(oldpt, area);
1266 }
1267 return pt;
1268 #endif
1269 }
1270
1271 static __inline__ void
drm_free(void * pt,size_t size,struct malloc_type * area)1272 drm_free(void *pt, size_t size, struct malloc_type *area)
1273 {
1274 free(pt, area);
1275 }
1276
1277 /* Inline replacements for DRM_IOREMAP macros */
1278 static __inline__ void
drm_core_ioremap_wc(struct drm_local_map * map,struct drm_device * dev)1279 drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev)
1280 {
1281 map->handle = drm_ioremap_wc(dev, map);
1282 }
1283 static __inline__ void
drm_core_ioremap(struct drm_local_map * map,struct drm_device * dev)1284 drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev)
1285 {
1286 map->handle = drm_ioremap(dev, map);
1287 }
1288 static __inline__ void
drm_core_ioremapfree(struct drm_local_map * map,struct drm_device * dev)1289 drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev)
1290 {
1291 if ( map->handle && map->size )
1292 drm_ioremapfree(map);
1293 }
1294
1295 static __inline__ struct drm_local_map *
drm_core_findmap(struct drm_device * dev,unsigned long offset)1296 drm_core_findmap(struct drm_device *dev, unsigned long offset)
1297 {
1298 drm_local_map_t *map;
1299
1300 DRM_SPINLOCK_ASSERT(&dev->dev_lock);
1301 TAILQ_FOREACH(map, &dev->maplist, link) {
1302 if (map->offset == offset)
1303 return map;
1304 }
1305 return NULL;
1306 }
1307
drm_core_dropmap(struct drm_map * map)1308 static __inline__ void drm_core_dropmap(struct drm_map *map)
1309 {
1310 }
1311
1312 #endif /* __KERNEL__ */
1313 #endif /* _DRM_P_H_ */
1314