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powerpc: use consistent types in mktree
[zen-stable.git] / drivers / gpu / drm / i915 / i915_dma.c
blob50d1f782768cc99ffc1e3a844f74a4c7898fcfed
1 /* i915_dma.c -- DMA support for the I915 -*- linux-c -*-
2 */
3 /*
4 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
5 * All Rights Reserved.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sub license, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
14 *
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial portions
17 * of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
22 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
23 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
24 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
25 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 *
27 */
28
29 #include "drmP.h"
30 #include "drm.h"
31 #include "drm_crtc_helper.h"
32 #include "intel_drv.h"
33 #include "i915_drm.h"
34 #include "i915_drv.h"
35
36 #define I915_DRV "i915_drv"
37
38 /* Really want an OS-independent resettable timer. Would like to have
39 * this loop run for (eg) 3 sec, but have the timer reset every time
40 * the head pointer changes, so that EBUSY only happens if the ring
41 * actually stalls for (eg) 3 seconds.
42 */
43 int i915_wait_ring(struct drm_device * dev, int n, const char *caller)
44 {
45 drm_i915_private_t *dev_priv = dev->dev_private;
46 drm_i915_ring_buffer_t *ring = &(dev_priv->ring);
47 u32 acthd_reg = IS_I965G(dev) ? ACTHD_I965 : ACTHD;
48 u32 last_acthd = I915_READ(acthd_reg);
49 u32 acthd;
50 u32 last_head = I915_READ(PRB0_HEAD) & HEAD_ADDR;
51 int i;
52
53 for (i = 0; i < 100000; i++) {
54 ring->head = I915_READ(PRB0_HEAD) & HEAD_ADDR;
55 acthd = I915_READ(acthd_reg);
56 ring->space = ring->head - (ring->tail + 8);
57 if (ring->space < 0)
58 ring->space += ring->Size;
59 if (ring->space >= n)
60 return 0;
61
62 if (dev->primary->master) {
63 struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
64 if (master_priv->sarea_priv)
65 master_priv->sarea_priv->perf_boxes |= I915_BOX_WAIT;
66 }
67
68
69 if (ring->head != last_head)
70 i = 0;
71 if (acthd != last_acthd)
72 i = 0;
73
74 last_head = ring->head;
75 last_acthd = acthd;
76 msleep_interruptible(10);
77
78 }
79
80 return -EBUSY;
81 }
82
83 /**
84 * Sets up the hardware status page for devices that need a physical address
85 * in the register.
86 */
87 static int i915_init_phys_hws(struct drm_device *dev)
88 {
89 drm_i915_private_t *dev_priv = dev->dev_private;
90 /* Program Hardware Status Page */
91 dev_priv->status_page_dmah =
92 drm_pci_alloc(dev, PAGE_SIZE, PAGE_SIZE, 0xffffffff);
93
94 if (!dev_priv->status_page_dmah) {
95 DRM_ERROR("Can not allocate hardware status page\n");
96 return -ENOMEM;
97 }
98 dev_priv->hw_status_page = dev_priv->status_page_dmah->vaddr;
99 dev_priv->dma_status_page = dev_priv->status_page_dmah->busaddr;
100
101 memset(dev_priv->hw_status_page, 0, PAGE_SIZE);
102
103 I915_WRITE(HWS_PGA, dev_priv->dma_status_page);
104 DRM_DEBUG_DRIVER(I915_DRV, "Enabled hardware status page\n");
105 return 0;
106 }
107
108 /**
109 * Frees the hardware status page, whether it's a physical address or a virtual
110 * address set up by the X Server.
111 */
112 static void i915_free_hws(struct drm_device *dev)
113 {
114 drm_i915_private_t *dev_priv = dev->dev_private;
115 if (dev_priv->status_page_dmah) {
116 drm_pci_free(dev, dev_priv->status_page_dmah);
117 dev_priv->status_page_dmah = NULL;
118 }
119
120 if (dev_priv->status_gfx_addr) {
121 dev_priv->status_gfx_addr = 0;
122 drm_core_ioremapfree(&dev_priv->hws_map, dev);
123 }
124
125 /* Need to rewrite hardware status page */
126 I915_WRITE(HWS_PGA, 0x1ffff000);
127 }
128
129 void i915_kernel_lost_context(struct drm_device * dev)
130 {
131 drm_i915_private_t *dev_priv = dev->dev_private;
132 struct drm_i915_master_private *master_priv;
133 drm_i915_ring_buffer_t *ring = &(dev_priv->ring);
134
135 /*
136 * We should never lose context on the ring with modesetting
137 * as we don't expose it to userspace
138 */
139 if (drm_core_check_feature(dev, DRIVER_MODESET))
140 return;
141
142 ring->head = I915_READ(PRB0_HEAD) & HEAD_ADDR;
143 ring->tail = I915_READ(PRB0_TAIL) & TAIL_ADDR;
144 ring->space = ring->head - (ring->tail + 8);
145 if (ring->space < 0)
146 ring->space += ring->Size;
147
148 if (!dev->primary->master)
149 return;
150
151 master_priv = dev->primary->master->driver_priv;
152 if (ring->head == ring->tail && master_priv->sarea_priv)
153 master_priv->sarea_priv->perf_boxes |= I915_BOX_RING_EMPTY;
154 }
155
156 static int i915_dma_cleanup(struct drm_device * dev)
157 {
158 drm_i915_private_t *dev_priv = dev->dev_private;
159 /* Make sure interrupts are disabled here because the uninstall ioctl
160 * may not have been called from userspace and after dev_private
161 * is freed, it's too late.
162 */
163 if (dev->irq_enabled)
164 drm_irq_uninstall(dev);
165
166 if (dev_priv->ring.virtual_start) {
167 drm_core_ioremapfree(&dev_priv->ring.map, dev);
168 dev_priv->ring.virtual_start = NULL;
169 dev_priv->ring.map.handle = NULL;
170 dev_priv->ring.map.size = 0;
171 }
172
173 /* Clear the HWS virtual address at teardown */
174 if (I915_NEED_GFX_HWS(dev))
175 i915_free_hws(dev);
176
177 return 0;
178 }
179
180 static int i915_initialize(struct drm_device * dev, drm_i915_init_t * init)
181 {
182 drm_i915_private_t *dev_priv = dev->dev_private;
183 struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
184
185 master_priv->sarea = drm_getsarea(dev);
186 if (master_priv->sarea) {
187 master_priv->sarea_priv = (drm_i915_sarea_t *)
188 ((u8 *)master_priv->sarea->handle + init->sarea_priv_offset);
189 } else {
190 DRM_DEBUG_DRIVER(I915_DRV,
191 "sarea not found assuming DRI2 userspace\n");
192 }
193
194 if (init->ring_size != 0) {
195 if (dev_priv->ring.ring_obj != NULL) {
196 i915_dma_cleanup(dev);
197 DRM_ERROR("Client tried to initialize ringbuffer in "
198 "GEM mode\n");
199 return -EINVAL;
200 }
201
202 dev_priv->ring.Size = init->ring_size;
203 dev_priv->ring.tail_mask = dev_priv->ring.Size - 1;
204
205 dev_priv->ring.map.offset = init->ring_start;
206 dev_priv->ring.map.size = init->ring_size;
207 dev_priv->ring.map.type = 0;
208 dev_priv->ring.map.flags = 0;
209 dev_priv->ring.map.mtrr = 0;
210
211 drm_core_ioremap_wc(&dev_priv->ring.map, dev);
212
213 if (dev_priv->ring.map.handle == NULL) {
214 i915_dma_cleanup(dev);
215 DRM_ERROR("can not ioremap virtual address for"
216 " ring buffer\n");
217 return -ENOMEM;
218 }
219 }
220
221 dev_priv->ring.virtual_start = dev_priv->ring.map.handle;
222
223 dev_priv->cpp = init->cpp;
224 dev_priv->back_offset = init->back_offset;
225 dev_priv->front_offset = init->front_offset;
226 dev_priv->current_page = 0;
227 if (master_priv->sarea_priv)
228 master_priv->sarea_priv->pf_current_page = 0;
229
230 /* Allow hardware batchbuffers unless told otherwise.
231 */
232 dev_priv->allow_batchbuffer = 1;
233
234 return 0;
235 }
236
237 static int i915_dma_resume(struct drm_device * dev)
238 {
239 drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
240
241 DRM_DEBUG_DRIVER(I915_DRV, "%s\n", __func__);
242
243 if (dev_priv->ring.map.handle == NULL) {
244 DRM_ERROR("can not ioremap virtual address for"
245 " ring buffer\n");
246 return -ENOMEM;
247 }
248
249 /* Program Hardware Status Page */
250 if (!dev_priv->hw_status_page) {
251 DRM_ERROR("Can not find hardware status page\n");
252 return -EINVAL;
253 }
254 DRM_DEBUG_DRIVER(I915_DRV, "hw status page @ %p\n",
255 dev_priv->hw_status_page);
256
257 if (dev_priv->status_gfx_addr != 0)
258 I915_WRITE(HWS_PGA, dev_priv->status_gfx_addr);
259 else
260 I915_WRITE(HWS_PGA, dev_priv->dma_status_page);
261 DRM_DEBUG_DRIVER(I915_DRV, "Enabled hardware status page\n");
262
263 return 0;
264 }
265
266 static int i915_dma_init(struct drm_device *dev, void *data,
267 struct drm_file *file_priv)
268 {
269 drm_i915_init_t *init = data;
270 int retcode = 0;
271
272 switch (init->func) {
273 case I915_INIT_DMA:
274 retcode = i915_initialize(dev, init);
275 break;
276 case I915_CLEANUP_DMA:
277 retcode = i915_dma_cleanup(dev);
278 break;
279 case I915_RESUME_DMA:
280 retcode = i915_dma_resume(dev);
281 break;
282 default:
283 retcode = -EINVAL;
284 break;
285 }
286
287 return retcode;
288 }
289
290 /* Implement basically the same security restrictions as hardware does
291 * for MI_BATCH_NON_SECURE. These can be made stricter at any time.
292 *
293 * Most of the calculations below involve calculating the size of a
294 * particular instruction. It's important to get the size right as
295 * that tells us where the next instruction to check is. Any illegal
296 * instruction detected will be given a size of zero, which is a
297 * signal to abort the rest of the buffer.
298 */
299 static int do_validate_cmd(int cmd)
300 {
301 switch (((cmd >> 29) & 0x7)) {
302 case 0x0:
303 switch ((cmd >> 23) & 0x3f) {
304 case 0x0:
305 return 1; /* MI_NOOP */
306 case 0x4:
307 return 1; /* MI_FLUSH */
308 default:
309 return 0; /* disallow everything else */
310 }
311 break;
312 case 0x1:
313 return 0; /* reserved */
314 case 0x2:
315 return (cmd & 0xff) + 2; /* 2d commands */
316 case 0x3:
317 if (((cmd >> 24) & 0x1f) <= 0x18)
318 return 1;
319
320 switch ((cmd >> 24) & 0x1f) {
321 case 0x1c:
322 return 1;
323 case 0x1d:
324 switch ((cmd >> 16) & 0xff) {
325 case 0x3:
326 return (cmd & 0x1f) + 2;
327 case 0x4:
328 return (cmd & 0xf) + 2;
329 default:
330 return (cmd & 0xffff) + 2;
331 }
332 case 0x1e:
333 if (cmd & (1 << 23))
334 return (cmd & 0xffff) + 1;
335 else
336 return 1;
337 case 0x1f:
338 if ((cmd & (1 << 23)) == 0) /* inline vertices */
339 return (cmd & 0x1ffff) + 2;
340 else if (cmd & (1 << 17)) /* indirect random */
341 if ((cmd & 0xffff) == 0)
342 return 0; /* unknown length, too hard */
343 else
344 return (((cmd & 0xffff) + 1) / 2) + 1;
345 else
346 return 2; /* indirect sequential */
347 default:
348 return 0;
349 }
350 default:
351 return 0;
352 }
353
354 return 0;
355 }
356
357 static int validate_cmd(int cmd)
358 {
359 int ret = do_validate_cmd(cmd);
360
361 /* printk("validate_cmd( %x ): %d\n", cmd, ret); */
362
363 return ret;
364 }
365
366 static int i915_emit_cmds(struct drm_device * dev, int *buffer, int dwords)
367 {
368 drm_i915_private_t *dev_priv = dev->dev_private;
369 int i;
370 RING_LOCALS;
371
372 if ((dwords+1) * sizeof(int) >= dev_priv->ring.Size - 8)
373 return -EINVAL;
374
375 BEGIN_LP_RING((dwords+1)&~1);
376
377 for (i = 0; i < dwords;) {
378 int cmd, sz;
379
380 cmd = buffer[i];
381
382 if ((sz = validate_cmd(cmd)) == 0 || i + sz > dwords)
383 return -EINVAL;
384
385 OUT_RING(cmd);
386
387 while (++i, --sz) {
388 OUT_RING(buffer[i]);
389 }
390 }
391
392 if (dwords & 1)
393 OUT_RING(0);
394
395 ADVANCE_LP_RING();
396
397 return 0;
398 }
399
400 int
401 i915_emit_box(struct drm_device *dev,
402 struct drm_clip_rect *boxes,
403 int i, int DR1, int DR4)
404 {
405 drm_i915_private_t *dev_priv = dev->dev_private;
406 struct drm_clip_rect box = boxes[i];
407 RING_LOCALS;
408
409 if (box.y2 <= box.y1 || box.x2 <= box.x1 || box.y2 <= 0 || box.x2 <= 0) {
410 DRM_ERROR("Bad box %d,%d..%d,%d\n",
411 box.x1, box.y1, box.x2, box.y2);
412 return -EINVAL;
413 }
414
415 if (IS_I965G(dev)) {
416 BEGIN_LP_RING(4);
417 OUT_RING(GFX_OP_DRAWRECT_INFO_I965);
418 OUT_RING((box.x1 & 0xffff) | (box.y1 << 16));
419 OUT_RING(((box.x2 - 1) & 0xffff) | ((box.y2 - 1) << 16));
420 OUT_RING(DR4);
421 ADVANCE_LP_RING();
422 } else {
423 BEGIN_LP_RING(6);
424 OUT_RING(GFX_OP_DRAWRECT_INFO);
425 OUT_RING(DR1);
426 OUT_RING((box.x1 & 0xffff) | (box.y1 << 16));
427 OUT_RING(((box.x2 - 1) & 0xffff) | ((box.y2 - 1) << 16));
428 OUT_RING(DR4);
429 OUT_RING(0);
430 ADVANCE_LP_RING();
431 }
432
433 return 0;
434 }
435
436 /* XXX: Emitting the counter should really be moved to part of the IRQ
437 * emit. For now, do it in both places:
438 */
439
440 static void i915_emit_breadcrumb(struct drm_device *dev)
441 {
442 drm_i915_private_t *dev_priv = dev->dev_private;
443 struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
444 RING_LOCALS;
445
446 dev_priv->counter++;
447 if (dev_priv->counter > 0x7FFFFFFFUL)
448 dev_priv->counter = 0;
449 if (master_priv->sarea_priv)
450 master_priv->sarea_priv->last_enqueue = dev_priv->counter;
451
452 BEGIN_LP_RING(4);
453 OUT_RING(MI_STORE_DWORD_INDEX);
454 OUT_RING(I915_BREADCRUMB_INDEX << MI_STORE_DWORD_INDEX_SHIFT);
455 OUT_RING(dev_priv->counter);
456 OUT_RING(0);
457 ADVANCE_LP_RING();
458 }
459
460 static int i915_dispatch_cmdbuffer(struct drm_device * dev,
461 drm_i915_cmdbuffer_t *cmd,
462 struct drm_clip_rect *cliprects,
463 void *cmdbuf)
464 {
465 int nbox = cmd->num_cliprects;
466 int i = 0, count, ret;
467
468 if (cmd->sz & 0x3) {
469 DRM_ERROR("alignment");
470 return -EINVAL;
471 }
472
473 i915_kernel_lost_context(dev);
474
475 count = nbox ? nbox : 1;
476
477 for (i = 0; i < count; i++) {
478 if (i < nbox) {
479 ret = i915_emit_box(dev, cliprects, i,
480 cmd->DR1, cmd->DR4);
481 if (ret)
482 return ret;
483 }
484
485 ret = i915_emit_cmds(dev, cmdbuf, cmd->sz / 4);
486 if (ret)
487 return ret;
488 }
489
490 i915_emit_breadcrumb(dev);
491 return 0;
492 }
493
494 static int i915_dispatch_batchbuffer(struct drm_device * dev,
495 drm_i915_batchbuffer_t * batch,
496 struct drm_clip_rect *cliprects)
497 {
498 drm_i915_private_t *dev_priv = dev->dev_private;
499 int nbox = batch->num_cliprects;
500 int i = 0, count;
501 RING_LOCALS;
502
503 if ((batch->start | batch->used) & 0x7) {
504 DRM_ERROR("alignment");
505 return -EINVAL;
506 }
507
508 i915_kernel_lost_context(dev);
509
510 count = nbox ? nbox : 1;
511
512 for (i = 0; i < count; i++) {
513 if (i < nbox) {
514 int ret = i915_emit_box(dev, cliprects, i,
515 batch->DR1, batch->DR4);
516 if (ret)
517 return ret;
518 }
519
520 if (!IS_I830(dev) && !IS_845G(dev)) {
521 BEGIN_LP_RING(2);
522 if (IS_I965G(dev)) {
523 OUT_RING(MI_BATCH_BUFFER_START | (2 << 6) | MI_BATCH_NON_SECURE_I965);
524 OUT_RING(batch->start);
525 } else {
526 OUT_RING(MI_BATCH_BUFFER_START | (2 << 6));
527 OUT_RING(batch->start | MI_BATCH_NON_SECURE);
528 }
529 ADVANCE_LP_RING();
530 } else {
531 BEGIN_LP_RING(4);
532 OUT_RING(MI_BATCH_BUFFER);
533 OUT_RING(batch->start | MI_BATCH_NON_SECURE);
534 OUT_RING(batch->start + batch->used - 4);
535 OUT_RING(0);
536 ADVANCE_LP_RING();
537 }
538 }
539
540 i915_emit_breadcrumb(dev);
541
542 return 0;
543 }
544
545 static int i915_dispatch_flip(struct drm_device * dev)
546 {
547 drm_i915_private_t *dev_priv = dev->dev_private;
548 struct drm_i915_master_private *master_priv =
549 dev->primary->master->driver_priv;
550 RING_LOCALS;
551
552 if (!master_priv->sarea_priv)
553 return -EINVAL;
554
555 DRM_DEBUG_DRIVER(I915_DRV, "%s: page=%d pfCurrentPage=%d\n",
556 __func__,
557 dev_priv->current_page,
558 master_priv->sarea_priv->pf_current_page);
559
560 i915_kernel_lost_context(dev);
561
562 BEGIN_LP_RING(2);
563 OUT_RING(MI_FLUSH | MI_READ_FLUSH);
564 OUT_RING(0);
565 ADVANCE_LP_RING();
566
567 BEGIN_LP_RING(6);
568 OUT_RING(CMD_OP_DISPLAYBUFFER_INFO | ASYNC_FLIP);
569 OUT_RING(0);
570 if (dev_priv->current_page == 0) {
571 OUT_RING(dev_priv->back_offset);
572 dev_priv->current_page = 1;
573 } else {
574 OUT_RING(dev_priv->front_offset);
575 dev_priv->current_page = 0;
576 }
577 OUT_RING(0);
578 ADVANCE_LP_RING();
579
580 BEGIN_LP_RING(2);
581 OUT_RING(MI_WAIT_FOR_EVENT | MI_WAIT_FOR_PLANE_A_FLIP);
582 OUT_RING(0);
583 ADVANCE_LP_RING();
584
585 master_priv->sarea_priv->last_enqueue = dev_priv->counter++;
586
587 BEGIN_LP_RING(4);
588 OUT_RING(MI_STORE_DWORD_INDEX);
589 OUT_RING(I915_BREADCRUMB_INDEX << MI_STORE_DWORD_INDEX_SHIFT);
590 OUT_RING(dev_priv->counter);
591 OUT_RING(0);
592 ADVANCE_LP_RING();
593
594 master_priv->sarea_priv->pf_current_page = dev_priv->current_page;
595 return 0;
596 }
597
598 static int i915_quiescent(struct drm_device * dev)
599 {
600 drm_i915_private_t *dev_priv = dev->dev_private;
601
602 i915_kernel_lost_context(dev);
603 return i915_wait_ring(dev, dev_priv->ring.Size - 8, __func__);
604 }
605
606 static int i915_flush_ioctl(struct drm_device *dev, void *data,
607 struct drm_file *file_priv)
608 {
609 int ret;
610
611 RING_LOCK_TEST_WITH_RETURN(dev, file_priv);
612
613 mutex_lock(&dev->struct_mutex);
614 ret = i915_quiescent(dev);
615 mutex_unlock(&dev->struct_mutex);
616
617 return ret;
618 }
619
620 static int i915_batchbuffer(struct drm_device *dev, void *data,
621 struct drm_file *file_priv)
622 {
623 drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
624 struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
625 drm_i915_sarea_t *sarea_priv = (drm_i915_sarea_t *)
626 master_priv->sarea_priv;
627 drm_i915_batchbuffer_t *batch = data;
628 int ret;
629 struct drm_clip_rect *cliprects = NULL;
630
631 if (!dev_priv->allow_batchbuffer) {
632 DRM_ERROR("Batchbuffer ioctl disabled\n");
633 return -EINVAL;
634 }
635
636 DRM_DEBUG_DRIVER(I915_DRV,
637 "i915 batchbuffer, start %x used %d cliprects %d\n",
638 batch->start, batch->used, batch->num_cliprects);
639
640 RING_LOCK_TEST_WITH_RETURN(dev, file_priv);
641
642 if (batch->num_cliprects < 0)
643 return -EINVAL;
644
645 if (batch->num_cliprects) {
646 cliprects = kcalloc(batch->num_cliprects,
647 sizeof(struct drm_clip_rect),
648 GFP_KERNEL);
649 if (cliprects == NULL)
650 return -ENOMEM;
651
652 ret = copy_from_user(cliprects, batch->cliprects,
653 batch->num_cliprects *
654 sizeof(struct drm_clip_rect));
655 if (ret != 0)
656 goto fail_free;
657 }
658
659 mutex_lock(&dev->struct_mutex);
660 ret = i915_dispatch_batchbuffer(dev, batch, cliprects);
661 mutex_unlock(&dev->struct_mutex);
662
663 if (sarea_priv)
664 sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv);
665
666 fail_free:
667 kfree(cliprects);
668
669 return ret;
670 }
671
672 static int i915_cmdbuffer(struct drm_device *dev, void *data,
673 struct drm_file *file_priv)
674 {
675 drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
676 struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
677 drm_i915_sarea_t *sarea_priv = (drm_i915_sarea_t *)
678 master_priv->sarea_priv;
679 drm_i915_cmdbuffer_t *cmdbuf = data;
680 struct drm_clip_rect *cliprects = NULL;
681 void *batch_data;
682 int ret;
683
684 DRM_DEBUG_DRIVER(I915_DRV,
685 "i915 cmdbuffer, buf %p sz %d cliprects %d\n",
686 cmdbuf->buf, cmdbuf->sz, cmdbuf->num_cliprects);
687
688 RING_LOCK_TEST_WITH_RETURN(dev, file_priv);
689
690 if (cmdbuf->num_cliprects < 0)
691 return -EINVAL;
692
693 batch_data = kmalloc(cmdbuf->sz, GFP_KERNEL);
694 if (batch_data == NULL)
695 return -ENOMEM;
696
697 ret = copy_from_user(batch_data, cmdbuf->buf, cmdbuf->sz);
698 if (ret != 0)
699 goto fail_batch_free;
700
701 if (cmdbuf->num_cliprects) {
702 cliprects = kcalloc(cmdbuf->num_cliprects,
703 sizeof(struct drm_clip_rect), GFP_KERNEL);
704 if (cliprects == NULL)
705 goto fail_batch_free;
706
707 ret = copy_from_user(cliprects, cmdbuf->cliprects,
708 cmdbuf->num_cliprects *
709 sizeof(struct drm_clip_rect));
710 if (ret != 0)
711 goto fail_clip_free;
712 }
713
714 mutex_lock(&dev->struct_mutex);
715 ret = i915_dispatch_cmdbuffer(dev, cmdbuf, cliprects, batch_data);
716 mutex_unlock(&dev->struct_mutex);
717 if (ret) {
718 DRM_ERROR("i915_dispatch_cmdbuffer failed\n");
719 goto fail_clip_free;
720 }
721
722 if (sarea_priv)
723 sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv);
724
725 fail_clip_free:
726 kfree(cliprects);
727 fail_batch_free:
728 kfree(batch_data);
729
730 return ret;
731 }
732
733 static int i915_flip_bufs(struct drm_device *dev, void *data,
734 struct drm_file *file_priv)
735 {
736 int ret;
737
738 DRM_DEBUG_DRIVER(I915_DRV, "%s\n", __func__);
739
740 RING_LOCK_TEST_WITH_RETURN(dev, file_priv);
741
742 mutex_lock(&dev->struct_mutex);
743 ret = i915_dispatch_flip(dev);
744 mutex_unlock(&dev->struct_mutex);
745
746 return ret;
747 }
748
749 static int i915_getparam(struct drm_device *dev, void *data,
750 struct drm_file *file_priv)
751 {
752 drm_i915_private_t *dev_priv = dev->dev_private;
753 drm_i915_getparam_t *param = data;
754 int value;
755
756 if (!dev_priv) {
757 DRM_ERROR("called with no initialization\n");
758 return -EINVAL;
759 }
760
761 switch (param->param) {
762 case I915_PARAM_IRQ_ACTIVE:
763 value = dev->pdev->irq ? 1 : 0;
764 break;
765 case I915_PARAM_ALLOW_BATCHBUFFER:
766 value = dev_priv->allow_batchbuffer ? 1 : 0;
767 break;
768 case I915_PARAM_LAST_DISPATCH:
769 value = READ_BREADCRUMB(dev_priv);
770 break;
771 case I915_PARAM_CHIPSET_ID:
772 value = dev->pci_device;
773 break;
774 case I915_PARAM_HAS_GEM:
775 value = dev_priv->has_gem;
776 break;
777 case I915_PARAM_NUM_FENCES_AVAIL:
778 value = dev_priv->num_fence_regs - dev_priv->fence_reg_start;
779 break;
780 default:
781 DRM_DEBUG_DRIVER(I915_DRV, "Unknown parameter %d\n",
782 param->param);
783 return -EINVAL;
784 }
785
786 if (DRM_COPY_TO_USER(param->value, &value, sizeof(int))) {
787 DRM_ERROR("DRM_COPY_TO_USER failed\n");
788 return -EFAULT;
789 }
790
791 return 0;
792 }
793
794 static int i915_setparam(struct drm_device *dev, void *data,
795 struct drm_file *file_priv)
796 {
797 drm_i915_private_t *dev_priv = dev->dev_private;
798 drm_i915_setparam_t *param = data;
799
800 if (!dev_priv) {
801 DRM_ERROR("called with no initialization\n");
802 return -EINVAL;
803 }
804
805 switch (param->param) {
806 case I915_SETPARAM_USE_MI_BATCHBUFFER_START:
807 break;
808 case I915_SETPARAM_TEX_LRU_LOG_GRANULARITY:
809 dev_priv->tex_lru_log_granularity = param->value;
810 break;
811 case I915_SETPARAM_ALLOW_BATCHBUFFER:
812 dev_priv->allow_batchbuffer = param->value;
813 break;
814 case I915_SETPARAM_NUM_USED_FENCES:
815 if (param->value > dev_priv->num_fence_regs ||
816 param->value < 0)
817 return -EINVAL;
818 /* Userspace can use first N regs */
819 dev_priv->fence_reg_start = param->value;
820 break;
821 default:
822 DRM_DEBUG_DRIVER(I915_DRV, "unknown parameter %d\n",
823 param->param);
824 return -EINVAL;
825 }
826
827 return 0;
828 }
829
830 static int i915_set_status_page(struct drm_device *dev, void *data,
831 struct drm_file *file_priv)
832 {
833 drm_i915_private_t *dev_priv = dev->dev_private;
834 drm_i915_hws_addr_t *hws = data;
835
836 if (!I915_NEED_GFX_HWS(dev))
837 return -EINVAL;
838
839 if (!dev_priv) {
840 DRM_ERROR("called with no initialization\n");
841 return -EINVAL;
842 }
843
844 if (drm_core_check_feature(dev, DRIVER_MODESET)) {
845 WARN(1, "tried to set status page when mode setting active\n");
846 return 0;
847 }
848
849 DRM_DEBUG("set status page addr 0x%08x\n", (u32)hws->addr);
850
851 dev_priv->status_gfx_addr = hws->addr & (0x1ffff<<12);
852
853 dev_priv->hws_map.offset = dev->agp->base + hws->addr;
854 dev_priv->hws_map.size = 4*1024;
855 dev_priv->hws_map.type = 0;
856 dev_priv->hws_map.flags = 0;
857 dev_priv->hws_map.mtrr = 0;
858
859 drm_core_ioremap_wc(&dev_priv->hws_map, dev);
860 if (dev_priv->hws_map.handle == NULL) {
861 i915_dma_cleanup(dev);
862 dev_priv->status_gfx_addr = 0;
863 DRM_ERROR("can not ioremap virtual address for"
864 " G33 hw status page\n");
865 return -ENOMEM;
866 }
867 dev_priv->hw_status_page = dev_priv->hws_map.handle;
868
869 memset(dev_priv->hw_status_page, 0, PAGE_SIZE);
870 I915_WRITE(HWS_PGA, dev_priv->status_gfx_addr);
871 DRM_DEBUG_DRIVER(I915_DRV, "load hws HWS_PGA with gfx mem 0x%x\n",
872 dev_priv->status_gfx_addr);
873 DRM_DEBUG_DRIVER(I915_DRV, "load hws at %p\n",
874 dev_priv->hw_status_page);
875 return 0;
876 }
877
878 /**
879 * i915_probe_agp - get AGP bootup configuration
880 * @pdev: PCI device
881 * @aperture_size: returns AGP aperture configured size
882 * @preallocated_size: returns size of BIOS preallocated AGP space
883 *
884 * Since Intel integrated graphics are UMA, the BIOS has to set aside
885 * some RAM for the framebuffer at early boot. This code figures out
886 * how much was set aside so we can use it for our own purposes.
887 */
888 static int i915_probe_agp(struct drm_device *dev, uint32_t *aperture_size,
889 uint32_t *preallocated_size)
890 {
891 struct pci_dev *bridge_dev;
892 u16 tmp = 0;
893 unsigned long overhead;
894 unsigned long stolen;
895
896 bridge_dev = pci_get_bus_and_slot(0, PCI_DEVFN(0,0));
897 if (!bridge_dev) {
898 DRM_ERROR("bridge device not found\n");
899 return -1;
900 }
901
902 /* Get the fb aperture size and "stolen" memory amount. */
903 pci_read_config_word(bridge_dev, INTEL_GMCH_CTRL, &tmp);
904 pci_dev_put(bridge_dev);
905
906 *aperture_size = 1024 * 1024;
907 *preallocated_size = 1024 * 1024;
908
909 switch (dev->pdev->device) {
910 case PCI_DEVICE_ID_INTEL_82830_CGC:
911 case PCI_DEVICE_ID_INTEL_82845G_IG:
912 case PCI_DEVICE_ID_INTEL_82855GM_IG:
913 case PCI_DEVICE_ID_INTEL_82865_IG:
914 if ((tmp & INTEL_GMCH_MEM_MASK) == INTEL_GMCH_MEM_64M)
915 *aperture_size *= 64;
916 else
917 *aperture_size *= 128;
918 break;
919 default:
920 /* 9xx supports large sizes, just look at the length */
921 *aperture_size = pci_resource_len(dev->pdev, 2);
922 break;
923 }
924
925 /*
926 * Some of the preallocated space is taken by the GTT
927 * and popup. GTT is 1K per MB of aperture size, and popup is 4K.
928 */
929 if (IS_G4X(dev) || IS_IGD(dev) || IS_IGDNG(dev))
930 overhead = 4096;
931 else
932 overhead = (*aperture_size / 1024) + 4096;
933
934 switch (tmp & INTEL_GMCH_GMS_MASK) {
935 case INTEL_855_GMCH_GMS_DISABLED:
936 DRM_ERROR("video memory is disabled\n");
937 return -1;
938 case INTEL_855_GMCH_GMS_STOLEN_1M:
939 stolen = 1 * 1024 * 1024;
940 break;
941 case INTEL_855_GMCH_GMS_STOLEN_4M:
942 stolen = 4 * 1024 * 1024;
943 break;
944 case INTEL_855_GMCH_GMS_STOLEN_8M:
945 stolen = 8 * 1024 * 1024;
946 break;
947 case INTEL_855_GMCH_GMS_STOLEN_16M:
948 stolen = 16 * 1024 * 1024;
949 break;
950 case INTEL_855_GMCH_GMS_STOLEN_32M:
951 stolen = 32 * 1024 * 1024;
952 break;
953 case INTEL_915G_GMCH_GMS_STOLEN_48M:
954 stolen = 48 * 1024 * 1024;
955 break;
956 case INTEL_915G_GMCH_GMS_STOLEN_64M:
957 stolen = 64 * 1024 * 1024;
958 break;
959 case INTEL_GMCH_GMS_STOLEN_128M:
960 stolen = 128 * 1024 * 1024;
961 break;
962 case INTEL_GMCH_GMS_STOLEN_256M:
963 stolen = 256 * 1024 * 1024;
964 break;
965 case INTEL_GMCH_GMS_STOLEN_96M:
966 stolen = 96 * 1024 * 1024;
967 break;
968 case INTEL_GMCH_GMS_STOLEN_160M:
969 stolen = 160 * 1024 * 1024;
970 break;
971 case INTEL_GMCH_GMS_STOLEN_224M:
972 stolen = 224 * 1024 * 1024;
973 break;
974 case INTEL_GMCH_GMS_STOLEN_352M:
975 stolen = 352 * 1024 * 1024;
976 break;
977 default:
978 DRM_ERROR("unexpected GMCH_GMS value: 0x%02x\n",
979 tmp & INTEL_GMCH_GMS_MASK);
980 return -1;
981 }
982 *preallocated_size = stolen - overhead;
983
984 return 0;
985 }
986
987 static int i915_load_modeset_init(struct drm_device *dev,
988 unsigned long prealloc_size,
989 unsigned long agp_size)
990 {
991 struct drm_i915_private *dev_priv = dev->dev_private;
992 int fb_bar = IS_I9XX(dev) ? 2 : 0;
993 int ret = 0;
994
995 dev->mode_config.fb_base = drm_get_resource_start(dev, fb_bar) &
996 0xff000000;
997
998 if (IS_MOBILE(dev) || IS_I9XX(dev))
999 dev_priv->cursor_needs_physical = true;
1000 else
1001 dev_priv->cursor_needs_physical = false;
1002
1003 if (IS_I965G(dev) || IS_G33(dev))
1004 dev_priv->cursor_needs_physical = false;
1005
1006 /* Basic memrange allocator for stolen space (aka vram) */
1007 drm_mm_init(&dev_priv->vram, 0, prealloc_size);
1008
1009 /* Let GEM Manage from end of prealloc space to end of aperture.
1010 *
1011 * However, leave one page at the end still bound to the scratch page.
1012 * There are a number of places where the hardware apparently
1013 * prefetches past the end of the object, and we've seen multiple
1014 * hangs with the GPU head pointer stuck in a batchbuffer bound
1015 * at the last page of the aperture. One page should be enough to
1016 * keep any prefetching inside of the aperture.
1017 */
1018 i915_gem_do_init(dev, prealloc_size, agp_size - 4096);
1019
1020 ret = i915_gem_init_ringbuffer(dev);
1021 if (ret)
1022 goto out;
1023
1024 /* Allow hardware batchbuffers unless told otherwise.
1025 */
1026 dev_priv->allow_batchbuffer = 1;
1027
1028 ret = intel_init_bios(dev);
1029 if (ret)
1030 DRM_INFO("failed to find VBIOS tables\n");
1031
1032 ret = drm_irq_install(dev);
1033 if (ret)
1034 goto destroy_ringbuffer;
1035
1036 /* Always safe in the mode setting case. */
1037 /* FIXME: do pre/post-mode set stuff in core KMS code */
1038 dev->vblank_disable_allowed = 1;
1039
1040 /*
1041 * Initialize the hardware status page IRQ location.
1042 */
1043
1044 I915_WRITE(INSTPM, (1 << 5) | (1 << 21));
1045
1046 intel_modeset_init(dev);
1047
1048 drm_helper_initial_config(dev);
1049
1050 return 0;
1051
1052 destroy_ringbuffer:
1053 i915_gem_cleanup_ringbuffer(dev);
1054 out:
1055 return ret;
1056 }
1057
1058 int i915_master_create(struct drm_device *dev, struct drm_master *master)
1059 {
1060 struct drm_i915_master_private *master_priv;
1061
1062 master_priv = kzalloc(sizeof(*master_priv), GFP_KERNEL);
1063 if (!master_priv)
1064 return -ENOMEM;
1065
1066 master->driver_priv = master_priv;
1067 return 0;
1068 }
1069
1070 void i915_master_destroy(struct drm_device *dev, struct drm_master *master)
1071 {
1072 struct drm_i915_master_private *master_priv = master->driver_priv;
1073
1074 if (!master_priv)
1075 return;
1076
1077 kfree(master_priv);
1078
1079 master->driver_priv = NULL;
1080 }
1081
1082 static void i915_get_mem_freq(struct drm_device *dev)
1083 {
1084 drm_i915_private_t *dev_priv = dev->dev_private;
1085 u32 tmp;
1086
1087 if (!IS_IGD(dev))
1088 return;
1089
1090 tmp = I915_READ(CLKCFG);
1091
1092 switch (tmp & CLKCFG_FSB_MASK) {
1093 case CLKCFG_FSB_533:
1094 dev_priv->fsb_freq = 533; /* 133*4 */
1095 break;
1096 case CLKCFG_FSB_800:
1097 dev_priv->fsb_freq = 800; /* 200*4 */
1098 break;
1099 case CLKCFG_FSB_667:
1100 dev_priv->fsb_freq = 667; /* 167*4 */
1101 break;
1102 case CLKCFG_FSB_400:
1103 dev_priv->fsb_freq = 400; /* 100*4 */
1104 break;
1105 }
1106
1107 switch (tmp & CLKCFG_MEM_MASK) {
1108 case CLKCFG_MEM_533:
1109 dev_priv->mem_freq = 533;
1110 break;
1111 case CLKCFG_MEM_667:
1112 dev_priv->mem_freq = 667;
1113 break;
1114 case CLKCFG_MEM_800:
1115 dev_priv->mem_freq = 800;
1116 break;
1117 }
1118 }
1119
1120 /**
1121 * i915_driver_load - setup chip and create an initial config
1122 * @dev: DRM device
1123 * @flags: startup flags
1124 *
1125 * The driver load routine has to do several things:
1126 * - drive output discovery via intel_modeset_init()
1127 * - initialize the memory manager
1128 * - allocate initial config memory
1129 * - setup the DRM framebuffer with the allocated memory
1130 */
1131 int i915_driver_load(struct drm_device *dev, unsigned long flags)
1132 {
1133 struct drm_i915_private *dev_priv = dev->dev_private;
1134 resource_size_t base, size;
1135 int ret = 0, mmio_bar = IS_I9XX(dev) ? 0 : 1;
1136 uint32_t agp_size, prealloc_size;
1137
1138 /* i915 has 4 more counters */
1139 dev->counters += 4;
1140 dev->types[6] = _DRM_STAT_IRQ;
1141 dev->types[7] = _DRM_STAT_PRIMARY;
1142 dev->types[8] = _DRM_STAT_SECONDARY;
1143 dev->types[9] = _DRM_STAT_DMA;
1144
1145 dev_priv = kzalloc(sizeof(drm_i915_private_t), GFP_KERNEL);
1146 if (dev_priv == NULL)
1147 return -ENOMEM;
1148
1149 dev->dev_private = (void *)dev_priv;
1150 dev_priv->dev = dev;
1151
1152 /* Add register map (needed for suspend/resume) */
1153 base = drm_get_resource_start(dev, mmio_bar);
1154 size = drm_get_resource_len(dev, mmio_bar);
1155
1156 dev_priv->regs = ioremap(base, size);
1157 if (!dev_priv->regs) {
1158 DRM_ERROR("failed to map registers\n");
1159 ret = -EIO;
1160 goto free_priv;
1161 }
1162
1163 dev_priv->mm.gtt_mapping =
1164 io_mapping_create_wc(dev->agp->base,
1165 dev->agp->agp_info.aper_size * 1024*1024);
1166 if (dev_priv->mm.gtt_mapping == NULL) {
1167 ret = -EIO;
1168 goto out_rmmap;
1169 }
1170
1171 /* Set up a WC MTRR for non-PAT systems. This is more common than
1172 * one would think, because the kernel disables PAT on first
1173 * generation Core chips because WC PAT gets overridden by a UC
1174 * MTRR if present. Even if a UC MTRR isn't present.
1175 */
1176 dev_priv->mm.gtt_mtrr = mtrr_add(dev->agp->base,
1177 dev->agp->agp_info.aper_size *
1178 1024 * 1024,
1179 MTRR_TYPE_WRCOMB, 1);
1180 if (dev_priv->mm.gtt_mtrr < 0) {
1181 DRM_INFO("MTRR allocation failed. Graphics "
1182 "performance may suffer.\n");
1183 }
1184
1185 ret = i915_probe_agp(dev, &agp_size, &prealloc_size);
1186 if (ret)
1187 goto out_iomapfree;
1188
1189 dev_priv->wq = create_workqueue("i915");
1190 if (dev_priv->wq == NULL) {
1191 DRM_ERROR("Failed to create our workqueue.\n");
1192 ret = -ENOMEM;
1193 goto out_iomapfree;
1194 }
1195
1196 /* enable GEM by default */
1197 dev_priv->has_gem = 1;
1198
1199 if (prealloc_size > agp_size * 3 / 4) {
1200 DRM_ERROR("Detected broken video BIOS with %d/%dkB of video "
1201 "memory stolen.\n",
1202 prealloc_size / 1024, agp_size / 1024);
1203 DRM_ERROR("Disabling GEM. (try reducing stolen memory or "
1204 "updating the BIOS to fix).\n");
1205 dev_priv->has_gem = 0;
1206 }
1207
1208 dev->driver->get_vblank_counter = i915_get_vblank_counter;
1209 dev->max_vblank_count = 0xffffff; /* only 24 bits of frame count */
1210 if (IS_G4X(dev) || IS_IGDNG(dev)) {
1211 dev->max_vblank_count = 0xffffffff; /* full 32 bit counter */
1212 dev->driver->get_vblank_counter = gm45_get_vblank_counter;
1213 }
1214
1215 i915_gem_load(dev);
1216
1217 /* Init HWS */
1218 if (!I915_NEED_GFX_HWS(dev)) {
1219 ret = i915_init_phys_hws(dev);
1220 if (ret != 0)
1221 goto out_workqueue_free;
1222 }
1223
1224 i915_get_mem_freq(dev);
1225
1226 /* On the 945G/GM, the chipset reports the MSI capability on the
1227 * integrated graphics even though the support isn't actually there
1228 * according to the published specs. It doesn't appear to function
1229 * correctly in testing on 945G.
1230 * This may be a side effect of MSI having been made available for PEG
1231 * and the registers being closely associated.
1232 *
1233 * According to chipset errata, on the 965GM, MSI interrupts may
1234 * be lost or delayed, but we use them anyways to avoid
1235 * stuck interrupts on some machines.
1236 */
1237 if (!IS_I945G(dev) && !IS_I945GM(dev))
1238 pci_enable_msi(dev->pdev);
1239
1240 spin_lock_init(&dev_priv->user_irq_lock);
1241 spin_lock_init(&dev_priv->error_lock);
1242 dev_priv->user_irq_refcount = 0;
1243
1244 ret = drm_vblank_init(dev, I915_NUM_PIPE);
1245
1246 if (ret) {
1247 (void) i915_driver_unload(dev);
1248 return ret;
1249 }
1250
1251 if (drm_core_check_feature(dev, DRIVER_MODESET)) {
1252 ret = i915_load_modeset_init(dev, prealloc_size, agp_size);
1253 if (ret < 0) {
1254 DRM_ERROR("failed to init modeset\n");
1255 goto out_workqueue_free;
1256 }
1257 }
1258
1259 /* Must be done after probing outputs */
1260 /* FIXME: verify on IGDNG */
1261 if (!IS_IGDNG(dev))
1262 intel_opregion_init(dev, 0);
1263
1264 return 0;
1265
1266 out_workqueue_free:
1267 destroy_workqueue(dev_priv->wq);
1268 out_iomapfree:
1269 io_mapping_free(dev_priv->mm.gtt_mapping);
1270 out_rmmap:
1271 iounmap(dev_priv->regs);
1272 free_priv:
1273 kfree(dev_priv);
1274 return ret;
1275 }
1276
1277 int i915_driver_unload(struct drm_device *dev)
1278 {
1279 struct drm_i915_private *dev_priv = dev->dev_private;
1280
1281 destroy_workqueue(dev_priv->wq);
1282
1283 io_mapping_free(dev_priv->mm.gtt_mapping);
1284 if (dev_priv->mm.gtt_mtrr >= 0) {
1285 mtrr_del(dev_priv->mm.gtt_mtrr, dev->agp->base,
1286 dev->agp->agp_info.aper_size * 1024 * 1024);
1287 dev_priv->mm.gtt_mtrr = -1;
1288 }
1289
1290 if (drm_core_check_feature(dev, DRIVER_MODESET)) {
1291 drm_irq_uninstall(dev);
1292 }
1293
1294 if (dev->pdev->msi_enabled)
1295 pci_disable_msi(dev->pdev);
1296
1297 if (dev_priv->regs != NULL)
1298 iounmap(dev_priv->regs);
1299
1300 if (!IS_IGDNG(dev))
1301 intel_opregion_free(dev, 0);
1302
1303 if (drm_core_check_feature(dev, DRIVER_MODESET)) {
1304 intel_modeset_cleanup(dev);
1305
1306 i915_gem_free_all_phys_object(dev);
1307
1308 mutex_lock(&dev->struct_mutex);
1309 i915_gem_cleanup_ringbuffer(dev);
1310 mutex_unlock(&dev->struct_mutex);
1311 drm_mm_takedown(&dev_priv->vram);
1312 i915_gem_lastclose(dev);
1313 }
1314
1315 kfree(dev->dev_private);
1316
1317 return 0;
1318 }
1319
1320 int i915_driver_open(struct drm_device *dev, struct drm_file *file_priv)
1321 {
1322 struct drm_i915_file_private *i915_file_priv;
1323
1324 DRM_DEBUG_DRIVER(I915_DRV, "\n");
1325 i915_file_priv = (struct drm_i915_file_private *)
1326 kmalloc(sizeof(*i915_file_priv), GFP_KERNEL);
1327
1328 if (!i915_file_priv)
1329 return -ENOMEM;
1330
1331 file_priv->driver_priv = i915_file_priv;
1332
1333 INIT_LIST_HEAD(&i915_file_priv->mm.request_list);
1334
1335 return 0;
1336 }
1337
1338 /**
1339 * i915_driver_lastclose - clean up after all DRM clients have exited
1340 * @dev: DRM device
1341 *
1342 * Take care of cleaning up after all DRM clients have exited. In the
1343 * mode setting case, we want to restore the kernel's initial mode (just
1344 * in case the last client left us in a bad state).
1345 *
1346 * Additionally, in the non-mode setting case, we'll tear down the AGP
1347 * and DMA structures, since the kernel won't be using them, and clea
1348 * up any GEM state.
1349 */
1350 void i915_driver_lastclose(struct drm_device * dev)
1351 {
1352 drm_i915_private_t *dev_priv = dev->dev_private;
1353
1354 if (!dev_priv || drm_core_check_feature(dev, DRIVER_MODESET)) {
1355 intelfb_restore();
1356 return;
1357 }
1358
1359 i915_gem_lastclose(dev);
1360
1361 if (dev_priv->agp_heap)
1362 i915_mem_takedown(&(dev_priv->agp_heap));
1363
1364 i915_dma_cleanup(dev);
1365 }
1366
1367 void i915_driver_preclose(struct drm_device * dev, struct drm_file *file_priv)
1368 {
1369 drm_i915_private_t *dev_priv = dev->dev_private;
1370 i915_gem_release(dev, file_priv);
1371 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1372 i915_mem_release(dev, file_priv, dev_priv->agp_heap);
1373 }
1374
1375 void i915_driver_postclose(struct drm_device *dev, struct drm_file *file_priv)
1376 {
1377 struct drm_i915_file_private *i915_file_priv = file_priv->driver_priv;
1378
1379 kfree(i915_file_priv);
1380 }
1381
1382 struct drm_ioctl_desc i915_ioctls[] = {
1383 DRM_IOCTL_DEF(DRM_I915_INIT, i915_dma_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1384 DRM_IOCTL_DEF(DRM_I915_FLUSH, i915_flush_ioctl, DRM_AUTH),
1385 DRM_IOCTL_DEF(DRM_I915_FLIP, i915_flip_bufs, DRM_AUTH),
1386 DRM_IOCTL_DEF(DRM_I915_BATCHBUFFER, i915_batchbuffer, DRM_AUTH),
1387 DRM_IOCTL_DEF(DRM_I915_IRQ_EMIT, i915_irq_emit, DRM_AUTH),
1388 DRM_IOCTL_DEF(DRM_I915_IRQ_WAIT, i915_irq_wait, DRM_AUTH),
1389 DRM_IOCTL_DEF(DRM_I915_GETPARAM, i915_getparam, DRM_AUTH),
1390 DRM_IOCTL_DEF(DRM_I915_SETPARAM, i915_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1391 DRM_IOCTL_DEF(DRM_I915_ALLOC, i915_mem_alloc, DRM_AUTH),
1392 DRM_IOCTL_DEF(DRM_I915_FREE, i915_mem_free, DRM_AUTH),
1393 DRM_IOCTL_DEF(DRM_I915_INIT_HEAP, i915_mem_init_heap, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1394 DRM_IOCTL_DEF(DRM_I915_CMDBUFFER, i915_cmdbuffer, DRM_AUTH),
1395 DRM_IOCTL_DEF(DRM_I915_DESTROY_HEAP, i915_mem_destroy_heap, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY ),
1396 DRM_IOCTL_DEF(DRM_I915_SET_VBLANK_PIPE, i915_vblank_pipe_set, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY ),
1397 DRM_IOCTL_DEF(DRM_I915_GET_VBLANK_PIPE, i915_vblank_pipe_get, DRM_AUTH ),
1398 DRM_IOCTL_DEF(DRM_I915_VBLANK_SWAP, i915_vblank_swap, DRM_AUTH),
1399 DRM_IOCTL_DEF(DRM_I915_HWS_ADDR, i915_set_status_page, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1400 DRM_IOCTL_DEF(DRM_I915_GEM_INIT, i915_gem_init_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1401 DRM_IOCTL_DEF(DRM_I915_GEM_EXECBUFFER, i915_gem_execbuffer, DRM_AUTH),
1402 DRM_IOCTL_DEF(DRM_I915_GEM_PIN, i915_gem_pin_ioctl, DRM_AUTH|DRM_ROOT_ONLY),
1403 DRM_IOCTL_DEF(DRM_I915_GEM_UNPIN, i915_gem_unpin_ioctl, DRM_AUTH|DRM_ROOT_ONLY),
1404 DRM_IOCTL_DEF(DRM_I915_GEM_BUSY, i915_gem_busy_ioctl, DRM_AUTH),
1405 DRM_IOCTL_DEF(DRM_I915_GEM_THROTTLE, i915_gem_throttle_ioctl, DRM_AUTH),
1406 DRM_IOCTL_DEF(DRM_I915_GEM_ENTERVT, i915_gem_entervt_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1407 DRM_IOCTL_DEF(DRM_I915_GEM_LEAVEVT, i915_gem_leavevt_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1408 DRM_IOCTL_DEF(DRM_I915_GEM_CREATE, i915_gem_create_ioctl, 0),
1409 DRM_IOCTL_DEF(DRM_I915_GEM_PREAD, i915_gem_pread_ioctl, 0),
1410 DRM_IOCTL_DEF(DRM_I915_GEM_PWRITE, i915_gem_pwrite_ioctl, 0),
1411 DRM_IOCTL_DEF(DRM_I915_GEM_MMAP, i915_gem_mmap_ioctl, 0),
1412 DRM_IOCTL_DEF(DRM_I915_GEM_MMAP_GTT, i915_gem_mmap_gtt_ioctl, 0),
1413 DRM_IOCTL_DEF(DRM_I915_GEM_SET_DOMAIN, i915_gem_set_domain_ioctl, 0),
1414 DRM_IOCTL_DEF(DRM_I915_GEM_SW_FINISH, i915_gem_sw_finish_ioctl, 0),
1415 DRM_IOCTL_DEF(DRM_I915_GEM_SET_TILING, i915_gem_set_tiling, 0),
1416 DRM_IOCTL_DEF(DRM_I915_GEM_GET_TILING, i915_gem_get_tiling, 0),
1417 DRM_IOCTL_DEF(DRM_I915_GEM_GET_APERTURE, i915_gem_get_aperture_ioctl, 0),
1418 DRM_IOCTL_DEF(DRM_I915_GET_PIPE_FROM_CRTC_ID, intel_get_pipe_from_crtc_id, 0),
1419 };
1420
1421 int i915_max_ioctl = DRM_ARRAY_SIZE(i915_ioctls);
1422
1423 /**
1424 * Determine if the device really is AGP or not.
1425 *
1426 * All Intel graphics chipsets are treated as AGP, even if they are really
1427 * PCI-e.
1428 *
1429 * \param dev The device to be tested.
1430 *
1431 * \returns
1432 * A value of 1 is always retured to indictate every i9x5 is AGP.
1433 */
1434 int i915_driver_device_is_agp(struct drm_device * dev)
1435 {
1436 return 1;
1437 }