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thunderbird: update to 45.5.1
[unleashed-userland.git] / components / openindiana / drm / drm / i915 / src / i915_dma.c
blobc72fbb65a9c468ef7cb8c46be0d96f636c3d818b
1 /*
2 * Copyright (c) 2006, 2014, Oracle and/or its affiliates. All rights reserved.
3 */
4
5 /* i915_dma.c -- DMA support for the I915 -*- linux-c -*-
6 */
7 /*
8 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
9 * Copyright (c) 2009, 2013, Intel Corporation.
10 * All Rights Reserved.
11 *
12 * Permission is hereby granted, free of charge, to any person obtaining a
13 * copy of this software and associated documentation files (the
14 * "Software"), to deal in the Software without restriction, including
15 * without limitation the rights to use, copy, modify, merge, publish,
16 * distribute, sub license, and/or sell copies of the Software, and to
17 * permit persons to whom the Software is furnished to do so, subject to
18 * the following conditions:
19 *
20 * The above copyright notice and this permission notice (including the
21 * next paragraph) shall be included in all copies or substantial portions
22 * of the Software.
23 *
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
25 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
27 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
28 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
29 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
30 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
31 *
32 */
33
34 #include "drmP.h"
35 #include "drm.h"
36 #include "drm_crtc_helper.h"
37 #include "drm_fb_helper.h"
38 #include "drm_linux.h"
39 #include "drm_mm.h"
40 #include "intel_drv.h"
41 #include "i915_drm.h"
42 #include "i915_drv.h"
43 #include "i915_io32.h"
44 #include "agptarget_io.h"
45
46 #define USE_PCI_DMA_API 0
47
48 #define LP_RING(d) (&((struct drm_i915_private *)(d))->ring[RCS])
49
50 #define BEGIN_LP_RING(n) \
51 intel_ring_begin(LP_RING(dev_priv), (n))
52
53 #define OUT_RING(x) \
54 intel_ring_emit(LP_RING(dev_priv), x)
55
56 #define ADVANCE_LP_RING() \
57 intel_ring_advance(LP_RING(dev_priv))
58
59 /**
60 * Lock test for when it's just for synchronization of ring access.
61 *
62 * In that case, we don't need to do it when GEM is initialized as nobody else
63 * has access to the ring.
64 */
65 #define RING_LOCK_TEST_WITH_RETURN(dev, file) do { \
66 if (LP_RING(dev->dev_private)->obj == NULL) \
67 LOCK_TEST_WITH_RETURN(dev, file); \
68 } while (__lintzero)
69
70 static inline u32
71 intel_read_legacy_status_page(struct drm_i915_private *dev_priv, int reg)
72 {
73 if (I915_NEED_GFX_HWS(dev_priv->dev)) {
74 u32 *regs = (u32 *)dev_priv->dri1.gfx_hws_cpu_addr.handle;
75 return regs[reg];
76 } else
77 return intel_read_status_page(LP_RING(dev_priv), reg);
78 }
79
80 #define READ_HWSP(dev_priv, reg) intel_read_legacy_status_page(dev_priv, reg)
81 #define READ_BREADCRUMB(dev_priv) READ_HWSP(dev_priv, I915_BREADCRUMB_INDEX)
82 #define I915_BREADCRUMB_INDEX 0x21
83
84 void i915_update_dri1_breadcrumb(struct drm_device *dev)
85 {
86 drm_i915_private_t *dev_priv = dev->dev_private;
87 struct drm_i915_master_private *master_priv;
88
89 if (dev->primary->master) {
90 master_priv = dev->primary->master->driver_priv;
91 if (master_priv->sarea_priv)
92 master_priv->sarea_priv->last_dispatch =
93 READ_BREADCRUMB(dev_priv);
94 }
95 }
96
97 static void i915_write_hws_pga(struct drm_device *dev)
98 {
99 drm_i915_private_t *dev_priv = dev->dev_private;
100 u32 addr;
101
102 addr = dev_priv->status_page_dmah->paddr;
103 if (INTEL_INFO(dev)->gen >= 4)
104 addr |= (dev_priv->status_page_dmah->paddr >> 28) & 0xf0;
105 I915_WRITE(HWS_PGA, addr);
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 struct intel_ring_buffer *ring = LP_RING(dev_priv);
116
117 if (dev_priv->status_page_dmah) {
118 drm_pci_free(dev_priv->status_page_dmah);
119 dev_priv->status_page_dmah = NULL;
120 }
121
122 if (ring->status_page.gfx_addr) {
123 ring->status_page.gfx_addr = 0;
124 drm_core_ioremapfree(&dev_priv->dri1.gfx_hws_cpu_addr, dev);
125 }
126
127 /* Need to rewrite hardware status page */
128 I915_WRITE(HWS_PGA, 0x1ffff000);
129 }
130
131 void i915_kernel_lost_context(struct drm_device * dev)
132 {
133 drm_i915_private_t *dev_priv = dev->dev_private;
134 struct drm_i915_master_private *master_priv;
135 struct intel_ring_buffer *ring = LP_RING(dev_priv);
136
137 /*
138 * We should never lose context on the ring with modesetting
139 * as we don't expose it to userspace
140 */
141 if (drm_core_check_feature(dev, DRIVER_MODESET))
142 return;
143
144 ring->head = I915_READ_HEAD(ring) & HEAD_ADDR;
145 ring->tail = I915_READ_TAIL(ring) & TAIL_ADDR;
146 ring->space = ring->head - (ring->tail + I915_RING_FREE_SPACE);
147 if (ring->space < 0)
148 ring->space += ring->size;
149
150 if (!dev->primary->master)
151 return;
152
153 master_priv = dev->primary->master->driver_priv;
154 if (ring->head == ring->tail && master_priv->sarea_priv)
155 master_priv->sarea_priv->perf_boxes |= I915_BOX_RING_EMPTY;
156 }
157
158 static int i915_dma_cleanup(struct drm_device * dev)
159 {
160 drm_i915_private_t *dev_priv = dev->dev_private;
161 int i;
162
163 /* Make sure interrupts are disabled here because the uninstall ioctl
164 * may not have been called from userspace and after dev_private
165 * is freed, it's too late.
166 */
167 if (dev->irq_enabled)
168 (void) drm_irq_uninstall(dev);
169
170 mutex_lock(&dev->struct_mutex);
171 for (i = 0; i < I915_NUM_RINGS; i++)
172 intel_cleanup_ring_buffer(&dev_priv->ring[i]);
173 mutex_unlock(&dev->struct_mutex);
174
175 /* Clear the HWS virtual address at teardown */
176 if (I915_NEED_GFX_HWS(dev))
177 i915_free_hws(dev);
178
179 return 0;
180 }
181
182 static int i915_initialize(struct drm_device * dev, drm_i915_init_t * init)
183 {
184 drm_i915_private_t *dev_priv = dev->dev_private;
185 struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
186 int ret;
187
188 master_priv->sarea = drm_getsarea(dev);
189 if (master_priv->sarea) {
190 master_priv->sarea_priv = (drm_i915_sarea_t *)(uintptr_t)
191 ((u8 *)master_priv->sarea->handle + init->sarea_priv_offset);
192 } else {
193 DRM_DEBUG_DRIVER("sarea not found assuming DRI2 userspace\n");
194 }
195
196 if (init->ring_size != 0) {
197 if (LP_RING(dev_priv)->obj != NULL) {
198 (void) i915_dma_cleanup(dev);
199 DRM_ERROR("Client tried to initialize ringbuffer in "
200 "GEM mode\n");
201 return -EINVAL;
202 }
203
204 ret = intel_render_ring_init_dri(dev,
205 init->ring_start,
206 init->ring_size);
207 if (ret) {
208 (void) i915_dma_cleanup(dev);
209 return ret;
210 }
211 }
212
213 dev_priv->dri1.cpp = init->cpp;
214 dev_priv->dri1.back_offset = init->back_offset;
215 dev_priv->dri1.front_offset = init->front_offset;
216 dev_priv->dri1.current_page = 0;
217 if (master_priv->sarea_priv)
218 master_priv->sarea_priv->pf_current_page = 0;
219
220 /* Allow hardware batchbuffers unless told otherwise.
221 */
222 dev_priv->dri1.allow_batchbuffer = 1;
223
224 return 0;
225 }
226
227 static int i915_dma_resume(struct drm_device * dev)
228 {
229 drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
230 struct intel_ring_buffer *ring = LP_RING(dev_priv);
231
232 DRM_DEBUG_DRIVER("%s\n", __func__);
233
234 if (ring->virtual_start == NULL) {
235 DRM_ERROR("can not ioremap virtual address for"
236 " ring buffer\n");
237 return -ENOMEM;
238 }
239
240 /* Program Hardware Status Page */
241 if (!ring->status_page.page_addr) {
242 DRM_ERROR("Can not find hardware status page\n");
243 return -EINVAL;
244 }
245 DRM_DEBUG_DRIVER("hw status page @ %p\n",
246 ring->status_page.page_addr);
247 if (ring->status_page.gfx_addr != 0)
248 intel_ring_setup_status_page(ring);
249 else
250 i915_write_hws_pga(dev);
251 DRM_DEBUG_DRIVER("Enabled hardware status page\n");
252
253 return 0;
254 }
255 /* LINTED */
256 static int i915_dma_init(DRM_IOCTL_ARGS)
257 {
258 drm_i915_init_t *init = data;
259 int retcode = 0;
260
261 if (drm_core_check_feature(dev, DRIVER_MODESET))
262 return -ENODEV;
263
264 switch (init->func) {
265 case I915_INIT_DMA:
266 retcode = i915_initialize(dev, init);
267 break;
268 case I915_CLEANUP_DMA:
269 retcode = i915_dma_cleanup(dev);
270 break;
271 case I915_RESUME_DMA:
272 retcode = i915_dma_resume(dev);
273 break;
274 default:
275 retcode = -EINVAL;
276 break;
277 }
278
279 return retcode;
280 }
281
282 /* Implement basically the same security restrictions as hardware does
283 * for MI_BATCH_NON_SECURE. These can be made stricter at any time.
284 *
285 * Most of the calculations below involve calculating the size of a
286 * particular instruction. It's important to get the size right as
287 * that tells us where the next instruction to check is. Any illegal
288 * instruction detected will be given a size of zero, which is a
289 * signal to abort the rest of the buffer.
290 */
291 static int validate_cmd(int cmd)
292 {
293 switch (((cmd >> 29) & 0x7)) {
294 case 0x0:
295 switch ((cmd >> 23) & 0x3f) {
296 case 0x0:
297 return 1; /* MI_NOOP */
298 case 0x4:
299 return 1; /* MI_FLUSH */
300 default:
301 return 0; /* disallow everything else */
302 }
303 #ifndef __SUNPRO_C
304 break;
305 #endif
306 case 0x1:
307 return 0; /* reserved */
308 case 0x2:
309 return (cmd & 0xff) + 2; /* 2d commands */
310 case 0x3:
311 if (((cmd >> 24) & 0x1f) <= 0x18)
312 return 1;
313
314 switch ((cmd >> 24) & 0x1f) {
315 case 0x1c:
316 return 1;
317 case 0x1d:
318 switch ((cmd >> 16) & 0xff) {
319 case 0x3:
320 return (cmd & 0x1f) + 2;
321 case 0x4:
322 return (cmd & 0xf) + 2;
323 default:
324 return (cmd & 0xffff) + 2;
325 }
326 case 0x1e:
327 if (cmd & (1 << 23))
328 return (cmd & 0xffff) + 1;
329 else
330 return 1;
331 case 0x1f:
332 if ((cmd & (1 << 23)) == 0) /* inline vertices */
333 return (cmd & 0x1ffff) + 2;
334 else if (cmd & (1 << 17)) /* indirect random */
335 if ((cmd & 0xffff) == 0)
336 return 0; /* unknown length, too hard */
337 else
338 return (((cmd & 0xffff) + 1) / 2) + 1;
339 else
340 return 2; /* indirect sequential */
341 default:
342 return 0;
343 }
344 default:
345 return 0;
346 }
347
348 #ifndef __SUNPRO_C
349 return 0;
350 #endif
351 }
352
353 static int i915_emit_cmds(struct drm_device * dev, int *buffer, int dwords)
354 {
355 drm_i915_private_t *dev_priv = dev->dev_private;
356 int i, ret;
357
358 if ((dwords+1) * sizeof(int) >= LP_RING(dev_priv)->size - 8)
359 return -EINVAL;
360
361 for (i = 0; i < dwords;) {
362 int sz = validate_cmd(buffer[i]);
363 if (sz == 0 || i + sz > dwords)
364 return -EINVAL;
365 i += sz;
366 }
367
368 ret = BEGIN_LP_RING((dwords+1)&~1);
369 if (ret)
370 return ret;
371
372 for (i = 0; i < dwords; i++)
373 OUT_RING(buffer[i]);
374 if (dwords & 1)
375 OUT_RING(0);
376
377 ADVANCE_LP_RING();
378
379 return 0;
380 }
381
382 int
383 i915_emit_box(struct drm_device *dev,
384 struct drm_clip_rect *box,
385 int DR1, int DR4)
386 {
387 struct drm_i915_private *dev_priv = dev->dev_private;
388 int ret;
389
390 if (box->y2 <= box->y1 || box->x2 <= box->x1 ||
391 (unsigned) box->y2 <= 0 || (unsigned) box->x2 <= 0) {
392 DRM_ERROR("Bad box %d,%d..%d,%d\n",
393 box->x1, box->y1, box->x2, box->y2);
394 return -EINVAL;
395 }
396
397 if (INTEL_INFO(dev)->gen >= 4) {
398 ret = BEGIN_LP_RING(4);
399 if (ret)
400 return ret;
401
402 OUT_RING(GFX_OP_DRAWRECT_INFO_I965);
403 OUT_RING((box->x1 & 0xffff) | (box->y1 << 16));
404 OUT_RING(((box->x2 - 1) & 0xffff) | ((box->y2 - 1) << 16));
405 OUT_RING(DR4);
406 } else {
407 ret = BEGIN_LP_RING(6);
408 if (ret)
409 return ret;
410
411 OUT_RING(GFX_OP_DRAWRECT_INFO);
412 OUT_RING(DR1);
413 OUT_RING((box->x1 & 0xffff) | (box->y1 << 16));
414 OUT_RING(((box->x2 - 1) & 0xffff) | ((box->y2 - 1) << 16));
415 OUT_RING(DR4);
416 OUT_RING(0);
417 }
418 ADVANCE_LP_RING();
419
420 return 0;
421 }
422
423 /* XXX: Emitting the counter should really be moved to part of the IRQ
424 * emit. For now, do it in both places:
425 */
426
427 static void i915_emit_breadcrumb(struct drm_device *dev)
428 {
429 drm_i915_private_t *dev_priv = dev->dev_private;
430 struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
431
432 dev_priv->dri1.counter++;
433 if (dev_priv->dri1.counter > 0x7FFFFFFFUL)
434 dev_priv->dri1.counter = 0;
435 if (master_priv->sarea_priv)
436 master_priv->sarea_priv->last_enqueue = dev_priv->dri1.counter;
437
438 if (BEGIN_LP_RING(4) == 0) {
439 OUT_RING(MI_STORE_DWORD_INDEX);
440 OUT_RING(I915_BREADCRUMB_INDEX << MI_STORE_DWORD_INDEX_SHIFT);
441 OUT_RING(dev_priv->dri1.counter);
442 OUT_RING(0);
443 ADVANCE_LP_RING();
444 }
445 }
446
447 static int i915_dispatch_cmdbuffer(struct drm_device * dev,
448 drm_i915_cmdbuffer_t *cmd,
449 struct drm_clip_rect *cliprects,
450 void *cmdbuf)
451 {
452 int nbox = cmd->num_cliprects;
453 int i = 0, count, ret;
454
455 if (cmd->sz & 0x3) {
456 DRM_ERROR("alignment");
457 return -EINVAL;
458 }
459
460 i915_kernel_lost_context(dev);
461
462 count = nbox ? nbox : 1;
463
464 for (i = 0; i < count; i++) {
465 if (i < nbox) {
466 ret = i915_emit_box(dev, &cliprects[i],
467 cmd->DR1, cmd->DR4);
468 if (ret)
469 return ret;
470 }
471
472 ret = i915_emit_cmds(dev, cmdbuf, cmd->sz / 4);
473 if (ret)
474 return ret;
475 }
476
477 i915_emit_breadcrumb(dev);
478 return 0;
479 }
480
481 static int i915_dispatch_batchbuffer(struct drm_device * dev,
482 drm_i915_batchbuffer_t * batch,
483 struct drm_clip_rect *cliprects)
484 {
485 struct drm_i915_private *dev_priv = dev->dev_private;
486 int nbox = batch->num_cliprects;
487 int i, count, ret;
488
489 if ((batch->start | batch->used) & 0x7) {
490 DRM_ERROR("alignment");
491 return -EINVAL;
492 }
493
494 i915_kernel_lost_context(dev);
495
496 count = nbox ? nbox : 1;
497 for (i = 0; i < count; i++) {
498 if (i < nbox) {
499 ret = i915_emit_box(dev, &cliprects[i],
500 batch->DR1, batch->DR4);
501 if (ret)
502 return ret;
503 }
504
505 if (!IS_I830(dev) && !IS_845G(dev)) {
506 ret = BEGIN_LP_RING(2);
507 if (ret)
508 return ret;
509
510 if (INTEL_INFO(dev)->gen >= 4) {
511 OUT_RING(MI_BATCH_BUFFER_START | (2 << 6) | MI_BATCH_NON_SECURE_I965);
512 OUT_RING(batch->start);
513 } else {
514 OUT_RING(MI_BATCH_BUFFER_START | (2 << 6));
515 OUT_RING(batch->start | MI_BATCH_NON_SECURE);
516 }
517 } else {
518 ret = BEGIN_LP_RING(4);
519 if (ret)
520 return ret;
521
522 OUT_RING(MI_BATCH_BUFFER);
523 OUT_RING(batch->start | MI_BATCH_NON_SECURE);
524 OUT_RING(batch->start + batch->used - 4);
525 OUT_RING(0);
526 }
527 ADVANCE_LP_RING();
528 }
529
530
531 if (IS_G4X(dev) || IS_GEN5(dev)) {
532 if (BEGIN_LP_RING(2) == 0) {
533 OUT_RING(MI_FLUSH | MI_NO_WRITE_FLUSH | MI_INVALIDATE_ISP);
534 OUT_RING(MI_NOOP);
535 ADVANCE_LP_RING();
536 }
537 }
538
539 i915_emit_breadcrumb(dev);
540 return 0;
541 }
542
543 static int i915_dispatch_flip(struct drm_device * dev)
544 {
545 drm_i915_private_t *dev_priv = dev->dev_private;
546 struct drm_i915_master_private *master_priv =
547 dev->primary->master->driver_priv;
548 int ret;
549
550 if (!master_priv->sarea_priv)
551 return -EINVAL;
552
553 DRM_DEBUG_DRIVER("%s: page=%d pfCurrentPage=%d\n",
554 __func__,
555 dev_priv->dri1.current_page,
556 master_priv->sarea_priv->pf_current_page);
557
558 i915_kernel_lost_context(dev);
559
560 ret = BEGIN_LP_RING(10);
561 if (ret)
562 return ret;
563
564 OUT_RING(MI_FLUSH | MI_READ_FLUSH);
565 OUT_RING(0);
566
567 OUT_RING(CMD_OP_DISPLAYBUFFER_INFO | ASYNC_FLIP);
568 OUT_RING(0);
569 if (dev_priv->dri1.current_page == 0) {
570 OUT_RING(dev_priv->dri1.back_offset);
571 dev_priv->dri1.current_page = 1;
572 } else {
573 OUT_RING(dev_priv->dri1.front_offset);
574 dev_priv->dri1.current_page = 0;
575 }
576 OUT_RING(0);
577
578 OUT_RING(MI_WAIT_FOR_EVENT | MI_WAIT_FOR_PLANE_A_FLIP);
579 OUT_RING(0);
580
581 ADVANCE_LP_RING();
582
583 master_priv->sarea_priv->last_enqueue = dev_priv->dri1.counter++;
584
585 if (BEGIN_LP_RING(4) == 0) {
586 OUT_RING(MI_STORE_DWORD_INDEX);
587 OUT_RING(I915_BREADCRUMB_INDEX << MI_STORE_DWORD_INDEX_SHIFT);
588 OUT_RING(dev_priv->dri1.counter);
589 OUT_RING(0);
590 ADVANCE_LP_RING();
591 }
592
593 master_priv->sarea_priv->pf_current_page = dev_priv->dri1.current_page;
594 return 0;
595 }
596
597 static int i915_quiescent(struct drm_device * dev)
598 {
599 i915_kernel_lost_context(dev);
600 return intel_ring_idle(LP_RING(dev->dev_private));
601 }
602
603 /* LINTED */
604 static int i915_flush_ioctl(DRM_IOCTL_ARGS)
605 {
606 int ret;
607
608 if (drm_core_check_feature(dev, DRIVER_MODESET))
609 return -ENODEV;
610
611 RING_LOCK_TEST_WITH_RETURN(dev, file);
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 /* LINTED */
621 static int i915_batchbuffer(DRM_IOCTL_ARGS)
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 (drm_core_check_feature(dev, DRIVER_MODESET))
632 return -ENODEV;
633
634 if (!dev_priv->dri1.allow_batchbuffer) {
635 DRM_ERROR("Batchbuffer ioctl disabled\n");
636 return -EINVAL;
637 }
638
639 DRM_DEBUG_DRIVER("i915 batchbuffer, start %x used %d cliprects %d\n",
640 batch->start, batch->used, batch->num_cliprects);
641
642 RING_LOCK_TEST_WITH_RETURN(dev, file);
643
644 if (batch->num_cliprects < 0)
645 return -EINVAL;
646
647 if (batch->num_cliprects) {
648 cliprects = kcalloc(batch->num_cliprects,
649 sizeof(struct drm_clip_rect),
650 GFP_KERNEL);
651 if (cliprects == NULL)
652 return -ENOMEM;
653
654 ret = copy_from_user(cliprects, batch->cliprects,
655 batch->num_cliprects *
656 sizeof(struct drm_clip_rect));
657 if (ret != 0) {
658 ret = -EFAULT;
659 goto fail_free;
660 }
661 }
662
663 mutex_lock(&dev->struct_mutex);
664 ret = i915_dispatch_batchbuffer(dev, batch, cliprects);
665 mutex_unlock(&dev->struct_mutex);
666
667 if (sarea_priv)
668 sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv);
669
670 fail_free:
671 kfree(cliprects, batch->num_cliprects * sizeof(struct drm_clip_rect));
672
673 return ret;
674 }
675
676 /* LINTED */
677 static int i915_cmdbuffer(DRM_IOCTL_ARGS)
678 {
679 drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
680 struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
681 drm_i915_sarea_t *sarea_priv = (drm_i915_sarea_t *)
682 master_priv->sarea_priv;
683 drm_i915_cmdbuffer_t *cmdbuf = data;
684 struct drm_clip_rect *cliprects = NULL;
685 void *batch_data;
686 int ret;
687
688 DRM_DEBUG_DRIVER("i915 cmdbuffer, buf %p sz %d cliprects %d\n",
689 (void *)cmdbuf->buf, cmdbuf->sz, cmdbuf->num_cliprects);
690
691 if (drm_core_check_feature(dev, DRIVER_MODESET))
692 return -ENODEV;
693
694 RING_LOCK_TEST_WITH_RETURN(dev, file);
695
696 if (cmdbuf->num_cliprects < 0)
697 return -EINVAL;
698
699 batch_data = kmalloc(cmdbuf->sz, GFP_KERNEL);
700 if (batch_data == NULL)
701 return -ENOMEM;
702
703 ret = copy_from_user(batch_data, cmdbuf->buf, cmdbuf->sz);
704 if (ret != 0) {
705 ret = -EFAULT;
706 goto fail_batch_free;
707 }
708
709 if (cmdbuf->num_cliprects) {
710 cliprects = kcalloc(cmdbuf->num_cliprects,
711 sizeof(struct drm_clip_rect), GFP_KERNEL);
712 if (cliprects == NULL) {
713 ret = -ENOMEM;
714 goto fail_batch_free;
715 }
716
717 ret = copy_from_user(cliprects, cmdbuf->cliprects,
718 cmdbuf->num_cliprects *
719 sizeof(struct drm_clip_rect));
720 if (ret != 0) {
721 ret = -EFAULT;
722 goto fail_clip_free;
723 }
724 }
725
726 mutex_lock(&dev->struct_mutex);
727 ret = i915_dispatch_cmdbuffer(dev, cmdbuf, cliprects, batch_data);
728 mutex_unlock(&dev->struct_mutex);
729 if (ret) {
730 DRM_ERROR("i915_dispatch_cmdbuffer failed\n");
731 goto fail_clip_free;
732 }
733
734 if (sarea_priv)
735 sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv);
736
737 fail_clip_free:
738 kfree(cliprects, cmdbuf->num_cliprects * sizeof(struct drm_clip_rect));
739 fail_batch_free:
740 kfree(batch_data, cmdbuf->sz);
741
742 return ret;
743 }
744
745 static int i915_emit_irq(struct drm_device * dev)
746 {
747 drm_i915_private_t *dev_priv = dev->dev_private;
748 struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
749
750 i915_kernel_lost_context(dev);
751
752 DRM_DEBUG_DRIVER("\n");
753
754 dev_priv->dri1.counter++;
755 if (dev_priv->dri1.counter > 0x7FFFFFFFUL)
756 dev_priv->dri1.counter = 1;
757 if (master_priv->sarea_priv)
758 master_priv->sarea_priv->last_enqueue = dev_priv->dri1.counter;
759
760 if (BEGIN_LP_RING(4) == 0) {
761 OUT_RING(MI_STORE_DWORD_INDEX);
762 OUT_RING(I915_BREADCRUMB_INDEX << MI_STORE_DWORD_INDEX_SHIFT);
763 OUT_RING(dev_priv->dri1.counter);
764 OUT_RING(MI_USER_INTERRUPT);
765 ADVANCE_LP_RING();
766 }
767
768 return dev_priv->dri1.counter;
769 }
770
771 static int i915_wait_irq(struct drm_device * dev, int irq_nr)
772 {
773 drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
774 struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
775 int ret = 0;
776 struct intel_ring_buffer *ring = LP_RING(dev_priv);
777
778 DRM_DEBUG_DRIVER("irq_nr=%d breadcrumb=%d\n", irq_nr,
779 READ_BREADCRUMB(dev_priv));
780
781 if (READ_BREADCRUMB(dev_priv) >= irq_nr) {
782 if (master_priv->sarea_priv)
783 master_priv->sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv);
784 return 0;
785 }
786
787 if (master_priv->sarea_priv)
788 master_priv->sarea_priv->perf_boxes |= I915_BOX_WAIT;
789
790 if (ring->irq_get(ring)) {
791 DRM_WAIT_ON(ret, &ring->irq_queue, 3 * DRM_HZ,
792 READ_BREADCRUMB(dev_priv) >= irq_nr);
793 ring->irq_put(ring);
794 } else if (wait_for(READ_BREADCRUMB(dev_priv) >= irq_nr, 3000))
795 ret = -EBUSY;
796
797 if (ret == -EBUSY) {
798 DRM_ERROR("EBUSY -- rec: %d emitted: %d\n",
799 READ_BREADCRUMB(dev_priv), (int)dev_priv->dri1.counter);
800 }
801
802 return ret;
803 }
804
805 /* Needs the lock as it touches the ring.
806 */
807 /* LINTED */
808 int i915_irq_emit(DRM_IOCTL_ARGS)
809 {
810 drm_i915_private_t *dev_priv = dev->dev_private;
811 drm_i915_irq_emit_t *emit = data;
812 int result;
813
814 if (drm_core_check_feature(dev, DRIVER_MODESET))
815 return -ENODEV;
816
817 if (!dev_priv || !LP_RING(dev_priv)->virtual_start) {
818 DRM_ERROR("called with no initialization\n");
819 return -EINVAL;
820 }
821
822 RING_LOCK_TEST_WITH_RETURN(dev, file);
823
824 mutex_lock(&dev->struct_mutex);
825 result = i915_emit_irq(dev);
826 mutex_unlock(&dev->struct_mutex);
827
828 if (DRM_COPY_TO_USER(emit->irq_seq, &result, sizeof(int))) {
829 DRM_ERROR("copy_to_user\n");
830 return -EFAULT;
831 }
832
833 return 0;
834 }
835
836 /* Doesn't need the hardware lock.
837 */
838 /* LINTED */
839 int i915_irq_wait(DRM_IOCTL_ARGS)
840 {
841 drm_i915_private_t *dev_priv = dev->dev_private;
842 drm_i915_irq_wait_t *irqwait = data;
843
844 if (drm_core_check_feature(dev, DRIVER_MODESET))
845 return -ENODEV;
846
847 if (!dev_priv) {
848 DRM_ERROR("called with no initialization\n");
849 return -EINVAL;
850 }
851
852 return i915_wait_irq(dev, irqwait->irq_seq);
853 }
854
855 /* LINTED */
856 int i915_vblank_pipe_get(DRM_IOCTL_ARGS)
857 {
858 drm_i915_private_t *dev_priv = dev->dev_private;
859 drm_i915_vblank_pipe_t *pipe = data;
860
861 if (drm_core_check_feature(dev, DRIVER_MODESET))
862 return -ENODEV;
863
864 if (!dev_priv) {
865 DRM_ERROR("called with no initialization\n");
866 return -EINVAL;
867 }
868
869 pipe->pipe = DRM_I915_VBLANK_PIPE_A | DRM_I915_VBLANK_PIPE_B;
870
871 return 0;
872 }
873
874 /**
875 * Schedule buffer swap at given vertical blank.
876 */
877 /* LINTED */
878 int i915_vblank_swap(DRM_IOCTL_ARGS)
879 {
880 /* The delayed swap mechanism was fundamentally racy, and has been
881 * removed. The model was that the client requested a delayed flip/swap
882 * from the kernel, then waited for vblank before continuing to perform
883 * rendering. The problem was that the kernel might wake the client
884 * up before it dispatched the vblank swap (since the lock has to be
885 * held while touching the ringbuffer), in which case the client would
886 * clear and start the next frame before the swap occurred, and
887 * flicker would occur in addition to likely missing the vblank.
888 *
889 * In the absence of this ioctl, userland falls back to a correct path
890 * of waiting for a vblank, then dispatching the swap on its own.
891 * Context switching to userland and back is plenty fast enough for
892 * meeting the requirements of vblank swapping.
893 */
894 return -EINVAL;
895 }
896
897 /* LINTED */
898 static int i915_flip_bufs(DRM_IOCTL_ARGS)
899 {
900 int ret;
901
902 if (drm_core_check_feature(dev, DRIVER_MODESET))
903 return -ENODEV;
904
905 DRM_DEBUG_DRIVER("%s\n", __func__);
906
907 RING_LOCK_TEST_WITH_RETURN(dev, file);
908
909 mutex_lock(&dev->struct_mutex);
910 ret = i915_dispatch_flip(dev);
911 mutex_unlock(&dev->struct_mutex);
912
913 return ret;
914 }
915
916 /* LINTED */
917 static int i915_getparam(DRM_IOCTL_ARGS)
918 {
919 drm_i915_private_t *dev_priv = dev->dev_private;
920 drm_i915_getparam_t *param = data;
921 int value;
922
923 if (!dev_priv) {
924 DRM_ERROR("called with no initialization\n");
925 return -EINVAL;
926 }
927
928 switch (param->param) {
929 case I915_PARAM_IRQ_ACTIVE:
930 value = dev->pdev->irq ? 1 : 0;
931 break;
932 case I915_PARAM_ALLOW_BATCHBUFFER:
933 value = dev_priv->dri1.allow_batchbuffer ? 1 : 0;
934 break;
935 case I915_PARAM_LAST_DISPATCH:
936 value = READ_BREADCRUMB(dev_priv);
937 break;
938 case I915_PARAM_CHIPSET_ID:
939 value = dev->pci_device;
940 break;
941 case I915_PARAM_HAS_GEM:
942 value = 1;
943 break;
944 case I915_PARAM_NUM_FENCES_AVAIL:
945 value = dev_priv->num_fence_regs - dev_priv->fence_reg_start;
946 break;
947 case I915_PARAM_HAS_OVERLAY:
948 value = dev_priv->overlay ? 1 : 0;
949 break;
950 case I915_PARAM_HAS_PAGEFLIPPING:
951 value = 1;
952 break;
953 case I915_PARAM_HAS_EXECBUF2:
954 /* depends on GEM */
955 value = 1;
956 break;
957 case I915_PARAM_HAS_BSD:
958 value = intel_ring_initialized(&dev_priv->ring[VCS]);
959 break;
960 case I915_PARAM_HAS_BLT:
961 value = intel_ring_initialized(&dev_priv->ring[BCS]);
962 break;
963 case I915_PARAM_HAS_VEBOX:
964 value = intel_ring_initialized(&dev_priv->ring[VECS]);
965 break;
966 case I915_PARAM_HAS_RELAXED_FENCING:
967 value = 1;
968 break;
969 case I915_PARAM_HAS_COHERENT_RINGS:
970 value = 1;
971 break;
972 case I915_PARAM_HAS_EXEC_CONSTANTS:
973 value = INTEL_INFO(dev)->gen >= 4;
974 break;
975 case I915_PARAM_HAS_RELAXED_DELTA:
976 value = 1;
977 break;
978 case I915_PARAM_HAS_GEN7_SOL_RESET:
979 value = 1;
980 break;
981 case I915_PARAM_HAS_LLC:
982 value = HAS_LLC(dev);
983 break;
984 case I915_PARAM_HAS_ALIASING_PPGTT:
985 value = dev_priv->mm.aliasing_ppgtt ? 1 : 0;
986 break;
987 case I915_PARAM_HAS_WAIT_TIMEOUT:
988 value = 1;
989 break;
990 case I915_PARAM_HAS_SEMAPHORES:
991 value = i915_semaphore_is_enabled(dev);
992 break;
993 case I915_PARAM_HAS_PRIME_VMAP_FLUSH:
994 value = 1;
995 break;
996 case I915_PARAM_HAS_SECURE_BATCHES:
997 /* not support yet */
998 value = 0;
999 break;
1000 case I915_PARAM_HAS_PINNED_BATCHES:
1001 value = 1;
1002 break;
1003 case I915_PARAM_HAS_EXEC_NO_RELOC:
1004 value = 1;
1005 break;
1006 case I915_PARAM_HAS_EXEC_HANDLE_LUT:
1007 value = 1;
1008 break;
1009 default:
1010 DRM_DEBUG_DRIVER("Unknown parameter %d\n",
1011 param->param);
1012 return -EINVAL;
1013 }
1014
1015 if (DRM_COPY_TO_USER(param->value, &value, sizeof(int))) {
1016 DRM_ERROR("DRM_COPY_TO_USER failed\n");
1017 return -EFAULT;
1018 }
1019
1020 return 0;
1021 }
1022
1023 /* LINTED */
1024 static int i915_setparam(DRM_IOCTL_ARGS)
1025 {
1026 drm_i915_private_t *dev_priv = dev->dev_private;
1027 drm_i915_setparam_t *param = data;
1028
1029 if (!dev_priv) {
1030 DRM_ERROR("called with no initialization\n");
1031 return -EINVAL;
1032 }
1033
1034 switch (param->param) {
1035 case I915_SETPARAM_USE_MI_BATCHBUFFER_START:
1036 break;
1037 case I915_SETPARAM_TEX_LRU_LOG_GRANULARITY:
1038 break;
1039 case I915_SETPARAM_ALLOW_BATCHBUFFER:
1040 dev_priv->dri1.allow_batchbuffer = param->value ? 1 : 0;
1041 break;
1042 case I915_SETPARAM_NUM_USED_FENCES:
1043 if (param->value > dev_priv->num_fence_regs ||
1044 param->value < 0)
1045 return -EINVAL;
1046 /* Userspace can use first N regs */
1047 dev_priv->fence_reg_start = param->value;
1048 break;
1049 default:
1050 DRM_DEBUG_DRIVER("unknown parameter %d\n",
1051 param->param);
1052 return -EINVAL;
1053 }
1054
1055 return 0;
1056 }
1057
1058 /* LINTED */
1059 static int i915_set_status_page(DRM_IOCTL_ARGS)
1060 {
1061 drm_i915_private_t *dev_priv = dev->dev_private;
1062 drm_i915_hws_addr_t *hws = data;
1063 struct intel_ring_buffer *ring;
1064
1065 if (drm_core_check_feature(dev, DRIVER_MODESET))
1066 return -ENODEV;
1067
1068 if (!I915_NEED_GFX_HWS(dev))
1069 return -EINVAL;
1070
1071 if (!dev_priv) {
1072 DRM_ERROR("called with no initialization\n");
1073 return -EINVAL;
1074 }
1075
1076 if (drm_core_check_feature(dev, DRIVER_MODESET)) {
1077 DRM_ERROR("tried to set status page when mode setting active\n");
1078 return 0;
1079 }
1080
1081 DRM_DEBUG_DRIVER("set status page addr 0x%08x\n", (u32)hws->addr);
1082
1083 ring = LP_RING(dev_priv);
1084 ring->status_page.gfx_addr = hws->addr & (0x1ffff<<12);
1085
1086 dev_priv->dri1.gfx_hws_cpu_addr.offset = (u_offset_t)dev->agp_aperbase + hws->addr;
1087 dev_priv->dri1.gfx_hws_cpu_addr.size = 4*1024;
1088 dev_priv->dri1.gfx_hws_cpu_addr.type = 0;
1089 dev_priv->dri1.gfx_hws_cpu_addr.flags = 0;
1090 dev_priv->dri1.gfx_hws_cpu_addr.mtrr = 0;
1091
1092 drm_core_ioremap(&dev_priv->dri1.gfx_hws_cpu_addr, dev);
1093 if (dev_priv->dri1.gfx_hws_cpu_addr.handle == NULL) {
1094 (void) i915_dma_cleanup(dev);
1095 ring->status_page.gfx_addr = 0;
1096 DRM_ERROR("can not ioremap virtual address for"
1097 " G33 hw status page\n");
1098 return -ENOMEM;
1099 }
1100
1101 (void) memset(dev_priv->dri1.gfx_hws_cpu_addr.handle, 0, PAGE_SIZE);
1102 I915_WRITE(HWS_PGA, ring->status_page.gfx_addr);
1103
1104 DRM_DEBUG_DRIVER("load hws HWS_PGA with gfx mem 0x%x\n",
1105 ring->status_page.gfx_addr);
1106 DRM_DEBUG_DRIVER("load hws at %p\n",
1107 ring->status_page.page_addr);
1108 return 0;
1109 }
1110
1111 static int i915_get_bridge_dev(struct drm_device *dev)
1112 {
1113 struct drm_i915_private *dev_priv = dev->dev_private;
1114
1115 /* OSOL_i915 Begin */
1116 struct drm_i915_bridge_dev *bridge_dev = &dev_priv->bridge_dev;
1117 char name[32];
1118 int i, err;
1119
1120 if (INTEL_INFO(dev)->gen >= 6)
1121 return 0;
1122
1123 if (bridge_dev->ldi_id) {
1124 DRM_DEBUG("end");
1125 return 0;
1126 }
1127
1128 if (ldi_ident_from_dip(dev->devinfo, &bridge_dev->ldi_id)) {
1129 bridge_dev->ldi_id = NULL;
1130 DRM_DEBUG("failed");
1131 return -1;
1132 };
1133
1134 /* Workaround here:
1135 * agptarget0 is not always linked to the right device
1136 * try agptarget1 if failed at agptarget0
1137 */
1138 for (i = 0; i < 16; i++) {
1139 (void) sprintf(name, "/dev/agp/agptarget%d", i);
1140 err = ldi_open_by_name(name, 0, kcred,
1141 &bridge_dev->bridge_dev_hdl, bridge_dev->ldi_id);
1142 if (err == 0) {
1143 break;
1144 }
1145 DRM_INFO("can't open agptarget%d", i);
1146 }
1147
1148 if (err) {
1149 ldi_ident_release(bridge_dev->ldi_id);
1150 bridge_dev->ldi_id = NULL;
1151 bridge_dev->bridge_dev_hdl = NULL;
1152 return -1;
1153 }
1154 /* OSOL_i915 End */
1155
1156 return 0;
1157 }
1158
1159 int i915_bridge_dev_read_config_word(struct drm_i915_bridge_dev *bridge_dev, int where, u16 *val)
1160 {
1161 u16 data = (u16)where;
1162
1163 if (ldi_ioctl(bridge_dev->bridge_dev_hdl,
1164 AGP_TARGET_PCICONFIG_GET16, (intptr_t)&data, FKIOCTL, kcred, 0))
1165 return -1;
1166
1167 *val = data;
1168 return 0;
1169 }
1170
1171 int i915_bridge_dev_write_config_word(struct drm_i915_bridge_dev *bridge_dev, int where, u16 val)
1172 {
1173 u32 data = (u16)where << 16 | val;
1174
1175 if (ldi_ioctl(bridge_dev->bridge_dev_hdl,
1176 AGP_TARGET_PCICONFIG_SET16, (intptr_t)&data, FKIOCTL, kcred, 0))
1177 return -1;
1178
1179 return 0;
1180 }
1181
1182 /* true = enable decode, false = disable decoder */
1183 /* LINTED */
1184 static unsigned int i915_vga_set_decode(void *cookie, bool state)
1185 {
1186 struct drm_device *dev = cookie;
1187
1188 (void) intel_modeset_vga_set_state(dev, state);
1189 if (state)
1190 return VGA_RSRC_LEGACY_IO | VGA_RSRC_LEGACY_MEM |
1191 VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
1192 else
1193 return VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
1194 }
1195
1196
1197 static int i915_load_modeset_init(struct drm_device *dev)
1198 {
1199 struct drm_i915_private *dev_priv = dev->dev_private;
1200 int ret;
1201
1202 ret = intel_parse_bios(dev);
1203 if (ret)
1204 DRM_INFO("failed to find VBIOS tables\n");
1205
1206 /* Initialise stolen first so that we may reserve preallocated
1207 * objects for the BIOS to KMS transition.
1208 */
1209 ret = i915_gem_init_stolen(dev);
1210 if (ret)
1211 goto out;
1212
1213 /* clear interrupt related bits */
1214 if (dev->driver->irq_uninstall)
1215 dev->driver->irq_uninstall(dev);
1216
1217 ret = drm_irq_install(dev);
1218 if (ret)
1219 goto cleanup_gem_stolen;
1220
1221 /* Important: The output setup functions called by modeset_init need
1222 * working irqs for e.g. gmbus and dp aux transfers. */
1223 intel_modeset_init(dev);
1224
1225 ret = i915_gem_init(dev);
1226 if (ret)
1227 goto cleanup_irq;
1228
1229
1230 intel_modeset_gem_init(dev);
1231
1232 /* Always safe in the mode setting case. */
1233 /* FIXME: do pre/post-mode set stuff in core KMS code */
1234 dev->vblank_disable_allowed = 1;
1235 if (INTEL_INFO(dev)->num_pipes == 0) {
1236 dev_priv->mm.suspended = 0;
1237 return 0;
1238 }
1239
1240 if (dev_priv->fbcon_obj != NULL) {
1241 ret = intel_fbdev_init(dev);
1242 if (ret)
1243 goto cleanup_gem;
1244
1245 drm_register_fbops(dev);
1246 }
1247
1248 /* Only enable hotplug handling once the fbdev is fully set up. */
1249 intel_hpd_init(dev);
1250
1251 /*
1252 * Some ports require correctly set-up hpd registers for detection to
1253 * work properly (leading to ghost connected connector status), e.g. VGA
1254 * on gm45. Hence we can only set up the initial fbdev config after hpd
1255 * irqs are fully enabled. Now we should scan for the initial config
1256 * only once hotplug handling is enabled, but due to screwed-up locking
1257 * around kms/fbdev init we can't protect the fdbev initial config
1258 * scanning against hotplug events. Hence do this first and ignore the
1259 * tiny window where we will loose hotplug notifactions.
1260 */
1261 if (dev_priv->fbcon_obj != NULL)
1262 intel_fbdev_initial_config(dev);
1263
1264 /* Only enable hotplug handling once the fbdev is fully set up. */
1265 dev_priv->enable_hotplug_processing = true;
1266
1267 drm_kms_helper_poll_init(dev);
1268
1269 /* We're off and running w/KMS */
1270 dev_priv->mm.suspended = 0;
1271
1272 return 0;
1273
1274 cleanup_gem:
1275 mutex_lock(&dev->struct_mutex);
1276 i915_gem_cleanup_ringbuffer(dev);
1277 i915_gem_context_fini(dev);
1278 mutex_unlock(&dev->struct_mutex);
1279 i915_gem_cleanup_aliasing_ppgtt(dev);
1280 drm_mm_takedown(&dev_priv->mm.gtt_space);
1281 cleanup_irq:
1282 drm_irq_uninstall(dev);
1283 cleanup_gem_stolen:
1284 i915_gem_cleanup_stolen(dev);
1285 out:
1286 return ret;
1287 }
1288
1289 /* LINTED */
1290 int i915_master_create(struct drm_device *dev, struct drm_master *master)
1291 {
1292 struct drm_i915_master_private *master_priv;
1293
1294 master_priv = kzalloc(sizeof(*master_priv), GFP_KERNEL);
1295 if (!master_priv)
1296 return -ENOMEM;
1297
1298 master->driver_priv = master_priv;
1299 return 0;
1300 }
1301
1302 /* LINTED */
1303 void i915_master_destroy(struct drm_device *dev, struct drm_master *master)
1304 {
1305 struct drm_i915_master_private *master_priv = master->driver_priv;
1306
1307 if (!master_priv)
1308 return;
1309
1310 kfree(master_priv, sizeof(struct drm_i915_master_private));
1311
1312 master->driver_priv = NULL;
1313 }
1314
1315
1316 /* OSOL_i915 Begin */
1317 #define pci_dev_put(d) do_pci_dev_put(&(d))
1318
1319 void do_pci_dev_put(struct drm_i915_bridge_dev *bridge_dev)
1320 {
1321 if (bridge_dev->bridge_dev_hdl) {
1322 (void) ldi_close(bridge_dev->bridge_dev_hdl, 0, kcred);
1323 bridge_dev->bridge_dev_hdl = NULL;
1324 }
1325
1326 if (bridge_dev->ldi_id) {
1327 ldi_ident_release(bridge_dev->ldi_id);
1328 bridge_dev->ldi_id = NULL;
1329 }
1330 }
1331 /* OSOL_i915 End */
1332
1333 /**
1334 * intel_early_sanitize_regs - clean up BIOS state
1335 * @dev: DRM device
1336 *
1337 * This function must be called before we do any I915_READ or I915_WRITE. Its
1338 * purpose is to clean up any state left by the BIOS that may affect us when
1339 * reading and/or writing registers.
1340 */
1341 static void intel_early_sanitize_regs(struct drm_device *dev)
1342 {
1343 struct drm_i915_private *dev_priv = dev->dev_private;
1344
1345 if (HAS_FPGA_DBG_UNCLAIMED(dev))
1346 I915_WRITE_NOTRACE(FPGA_DBG, FPGA_DBG_RM_NOCLAIM);
1347 }
1348
1349 /**
1350 * i915_driver_load - setup chip and create an initial config
1351 * @dev: DRM device
1352 * @flags: startup flags
1353 *
1354 * The driver load routine has to do several things:
1355 * - drive output discovery via intel_modeset_init()
1356 * - initialize the memory manager
1357 * - allocate initial config memory
1358 * - setup the DRM framebuffer with the allocated memory
1359 */
1360 int i915_driver_load(struct drm_device *dev, unsigned long flags)
1361 {
1362 struct drm_i915_private *dev_priv;
1363 struct intel_device_info *info;
1364 resource_size_t base, size;
1365 int ret = 0, mmio_bar;
1366
1367 info = (struct intel_device_info *) flags;
1368
1369 /* Refuse to load on gen6+ without kms enabled. */
1370 if (info->gen >= 6 && !drm_core_check_feature(dev, DRIVER_MODESET))
1371 return -ENODEV;
1372
1373 /* i915 has 4 more counters */
1374 dev->counters += 4;
1375 dev->types[6] = _DRM_STAT_IRQ;
1376 dev->types[7] = _DRM_STAT_PRIMARY;
1377 dev->types[8] = _DRM_STAT_SECONDARY;
1378 dev->types[9] = _DRM_STAT_DMA;
1379
1380 dev_priv = kzalloc(sizeof(drm_i915_private_t), GFP_KERNEL);
1381 if (dev_priv == NULL)
1382 return -ENOMEM;
1383
1384 dev->dev_private = (void *)dev_priv;
1385 dev_priv->dev = dev;
1386 dev_priv->info = info;
1387
1388 dev_priv->info = (struct intel_device_info *) flags;
1389
1390 /* Add register map (needed for suspend/resume) */
1391 mmio_bar = IS_GEN2(dev) ? 1 : 0;
1392 base = drm_get_resource_start(dev, mmio_bar);
1393 size = drm_get_resource_len(dev, mmio_bar);
1394
1395 dev_priv->regs = drm_alloc(sizeof (drm_local_map_t), DRM_MEM_MAPS);
1396 dev_priv->regs->offset = base;
1397 dev_priv->regs->size = size;
1398 dev_priv->regs->type = _DRM_REGISTERS;
1399 dev_priv->regs->flags = _DRM_REMOVABLE;
1400 if (drm_ioremap(dev, dev_priv->regs)) {
1401 ret = -EIO;
1402 goto put_bridge;
1403 }
1404
1405 DRM_DEBUG("mmio paddr=%lx, kvaddr=%p", dev_priv->regs->offset, dev_priv->regs->handle);
1406
1407 intel_early_sanitize_regs(dev);
1408 /* The i915 workqueue is primarily used for batched retirement of
1409 * requests (and thus managing bo) once the task has been completed
1410 * by the GPU. i915_gem_retire_requests() is called directly when we
1411 * need high-priority retirement, such as waiting for an explicit
1412 * bo.
1413 *
1414 * It is also used for periodic low-priority events, such as
1415 * idle-timers and hangcheck.
1416 *
1417 * All tasks on the workqueue are expected to acquire the dev mutex
1418 * so there is no point in running more than one instance of the
1419 * workqueue at any time: max_active = 1 and NON_REENTRANT.
1420 */
1421 dev_priv->wq = create_workqueue(dev->devinfo, "i915");
1422 if (dev_priv->wq == NULL) {
1423 DRM_ERROR("Failed to create i915 workqueue.\n");
1424 ret = -ENOMEM;
1425 goto out_rmmap;
1426 }
1427
1428 /* The i915 workqueue is primarily used for page_flip and fbc */
1429 dev_priv->other_wq = create_workqueue(dev->devinfo, "i915_other");
1430 if (dev_priv->other_wq == NULL) {
1431 DRM_ERROR("Failed to create i915_other workqueue.\n");
1432 ret = -ENOMEM;
1433 goto out_mtrrfree;
1434 }
1435
1436 /* This must be called before any calls to HAS_PCH_* */
1437 intel_detect_pch(dev);
1438
1439 intel_irq_init(dev);
1440 intel_pm_init(dev);
1441 intel_gt_sanitize(dev);
1442 intel_gt_init(dev);
1443
1444 if (intel_setup_gmbus(dev) != 0)
1445 goto out_mtrrfree;
1446
1447 /* Make sure the bios did its job and set up vital registers */
1448 intel_setup_bios(dev);
1449
1450 i915_gem_load(dev);
1451
1452 /* On the 945G/GM, the chipset reports the MSI capability on the
1453 * integrated graphics even though the support isn't actually there
1454 * according to the published specs. It doesn't appear to function
1455 * correctly in testing on 945G.
1456 * This may be a side effect of MSI having been made available for PEG
1457 * and the registers being closely associated.
1458 *
1459 * According to chipset errata, on the 965GM, MSI interrupts may
1460 * be lost or delayed, but we use them anyways to avoid
1461 * stuck interrupts on some machines.
1462 */
1463 /* Fix me: Failed to get interrupts after resume, when enable msi */
1464 /*
1465 if (!IS_I945G(dev) && !IS_I945GM(dev))
1466 pci_enable_msi(dev->pdev);
1467 */
1468 spin_lock_init(&dev_priv->irq_lock);
1469 spin_lock_init(&dev_priv->gpu_error.lock);
1470 spin_lock_init(&dev_priv->rps.lock);
1471 spin_lock_init(&dev_priv->dpio_lock);
1472
1473 spin_lock_init(&dev_priv->rps.hw_lock);
1474 spin_lock_init(&dev_priv->modeset_restore_lock);
1475
1476 dev_priv->num_plane = 1;
1477 if (IS_VALLEYVIEW(dev))
1478 dev_priv->num_plane = 2;
1479
1480 if (INTEL_INFO(dev)->num_pipes) {
1481 ret = drm_vblank_init(dev, INTEL_INFO(dev)->num_pipes);
1482 if (ret)
1483 goto out_gem_unload;
1484 }
1485
1486 /* Start out suspended */
1487 dev_priv->mm.suspended = 1;
1488
1489 if (HAS_POWER_WELL(dev))
1490 i915_init_power_well(dev);
1491
1492 if (IS_GEN7(dev))
1493 i915_try_reset = true;
1494
1495 dev_priv->gpu_hang = 0;
1496
1497 init_timer(&dev_priv->gpu_top_timer);
1498 setup_timer(&dev_priv->gpu_top_timer, gpu_top_handler,
1499 (void *) dev);
1500
1501 if (MDB_TRACK_ENABLE)
1502 INIT_LIST_HEAD(&dev_priv->batch_list);
1503
1504 return 0;
1505
1506 out_gem_unload:
1507 destroy_workqueue(dev_priv->other_wq);
1508 out_mtrrfree:
1509 destroy_workqueue(dev_priv->wq);
1510 out_rmmap:
1511 drm_ioremapfree(dev_priv->regs);
1512 put_bridge:
1513 free_priv:
1514 kfree(dev_priv, sizeof(struct drm_i915_private));
1515 return ret;
1516 }
1517
1518 int i915_driver_unload(struct drm_device *dev)
1519 {
1520 struct drm_i915_private *dev_priv = dev->dev_private;
1521 int ret;
1522
1523 if (HAS_POWER_WELL(dev))
1524 i915_remove_power_well(dev);
1525
1526 mutex_lock(&dev->struct_mutex);
1527 ret = i915_gpu_idle(dev);
1528 if (ret)
1529 DRM_ERROR("failed to idle hardware: %d\n", ret);
1530 i915_gem_retire_requests(dev);
1531 mutex_unlock(&dev->struct_mutex);
1532
1533 destroy_workqueue(dev_priv->other_wq);
1534 destroy_workqueue(dev_priv->wq);
1535
1536 del_timer_sync(&dev_priv->gpu_top_timer);
1537 destroy_timer(&dev_priv->gpu_top_timer);
1538 del_timer_sync(&dev_priv->gpu_error.hangcheck_timer);
1539 destroy_timer(&dev_priv->gpu_error.hangcheck_timer);
1540
1541 /* XXXX rebracket after this is tested */
1542 /*
1543 * Uninitialized GTT indicates that i915 never opens.
1544 * So we should not try to release the resources
1545 * which are only allocated in i915_driver_firstopen.
1546 */
1547 if (dev_priv->gtt.total !=0) {
1548
1549 if (drm_core_check_feature(dev, DRIVER_MODESET)) {
1550 (void) drm_irq_uninstall(dev);
1551 /* XXX FIXME vga_client_register(dev->pdev, NULL, NULL, NULL); */
1552 }
1553
1554 if (dev->pdev->msi_enabled)
1555 pci_disable_msi(dev->pdev);
1556
1557 i915_free_hws(dev);//XXX should still be here ??
1558
1559 if (drm_core_check_feature(dev, DRIVER_MODESET)) {
1560 if (dev_priv->fbcon_obj != NULL)
1561 intel_fbdev_fini(dev);
1562 intel_modeset_cleanup(dev);
1563
1564 mutex_lock(&dev->struct_mutex);
1565 i915_gem_free_all_phys_object(dev);
1566 i915_gem_cleanup_ringbuffer(dev);
1567 i915_gem_context_fini(dev);
1568 mutex_unlock(&dev->struct_mutex);
1569
1570 i915_gem_cleanup_aliasing_ppgtt(dev);
1571 i915_gem_cleanup_stolen(dev);
1572 if (!I915_NEED_GFX_HWS(dev))
1573 i915_free_hws(dev);
1574 i915_gem_lastclose(dev);
1575 if (dev_priv->gtt.scratch_page)
1576 teardown_scratch_page(dev);
1577 if (dev_priv->fbcon_obj != NULL) {
1578 i915_gem_free_object(&dev_priv->fbcon_obj->base);
1579 dev_priv->fbcon_obj = NULL;
1580 }
1581 }
1582 }
1583 drm_mm_takedown(&dev_priv->mm.gtt_space);
1584 dev_priv->gtt.gtt_remove(dev);
1585
1586 if (dev_priv->regs != NULL)
1587 (void) drm_rmmap(dev, dev_priv->regs);
1588
1589 mutex_destroy(&dev_priv->irq_lock);
1590
1591 pci_dev_put(dev_priv->bridge_dev);
1592
1593 if (MDB_TRACK_ENABLE) {
1594 struct batch_info_list *r_list, *list_temp;
1595 list_for_each_entry_safe(r_list, list_temp, struct batch_info_list, &dev_priv->batch_list, head) {
1596 list_del(&r_list->head);
1597 drm_free(r_list->obj_list, r_list->num * sizeof(caddr_t), DRM_MEM_MAPS);
1598 drm_free(r_list, sizeof (struct batch_info_list), DRM_MEM_MAPS);
1599 }
1600 list_del(&dev_priv->batch_list);
1601 }
1602 kfree(dev->dev_private, sizeof(drm_i915_private_t));
1603 dev->dev_private = NULL;
1604
1605 return 0;
1606 }
1607
1608 int
1609 i915_driver_firstopen(struct drm_device *dev)
1610 {
1611 static bool first_call = true;
1612 struct drm_i915_private *dev_priv = dev->dev_private;
1613 struct pci_dev *pdev = dev->pdev;
1614 u32 aperbase;
1615 int ret = 0;
1616
1617 if (first_call) {
1618 /* OSOL_i915: moved from i915_driver_load */
1619
1620 if (i915_get_bridge_dev(dev)) {
1621 DRM_ERROR("i915_get_bridge_dev() failed.");
1622 return -EIO;
1623 }
1624
1625 /*
1626 * AGP has been removed for GEN6+,
1627 * So we read the agp base and size here.
1628 */
1629 if (INTEL_INFO(dev)->gen >= 6) {
1630 pci_read_config_dword(pdev, GEN6_CONF_GMADR, &aperbase);
1631 dev->agp_aperbase = aperbase & GEN6_GTT_BASE_MASK;
1632 } else {
1633 dev->agp_aperbase = dev->agp->agp_info.agpi_aperbase;
1634 }
1635
1636 ret = i915_gem_gtt_init(dev);
1637 if (ret) {
1638 DRM_ERROR("Failed to initialize GTT\n");
1639 pci_dev_put(dev_priv->bridge_dev);
1640 ret = -ENODEV;
1641 return ret;
1642 }
1643
1644 if (drm_core_check_feature(dev, DRIVER_MODESET)) {
1645 ret = i915_load_modeset_init(dev);
1646 if (ret < 0) {
1647 DRM_ERROR("failed to init modeset\n");
1648 pci_dev_put(dev_priv->bridge_dev);
1649 return ret;
1650 }
1651 }
1652 }
1653
1654 dev_priv->isX = 1;
1655 first_call = false;
1656 return ret;
1657 }
1658
1659 /* LINTED */
1660 int i915_driver_open(struct drm_device *dev, struct drm_file *file_priv)
1661 {
1662 struct drm_i915_file_private *i915_file_priv;
1663
1664 DRM_DEBUG_DRIVER("\n");
1665 i915_file_priv = (struct drm_i915_file_private *)
1666 kmalloc(sizeof(*i915_file_priv), GFP_KERNEL);
1667
1668 if (!i915_file_priv)
1669 return -ENOMEM;
1670
1671 spin_lock_init(&i915_file_priv->mm.lock);
1672 INIT_LIST_HEAD(&i915_file_priv->mm.request_list);
1673
1674 idr_init(&i915_file_priv->context_idr);
1675
1676 i915_file_priv->status = 1;
1677 file_priv->driver_priv = i915_file_priv;
1678
1679 return 0;
1680 }
1681
1682 /**
1683 * i915_driver_lastclose - clean up after all DRM clients have exited
1684 * @dev: DRM device
1685 *
1686 * Take care of cleaning up after all DRM clients have exited. In the
1687 * mode setting case, we want to restore the kernel's initial mode (just
1688 * in case the last client left us in a bad state).
1689 *
1690 * Additionally, in the non-mode setting case, we'll tear down the AGP
1691 * and DMA structures, since the kernel won't be using them, and clea
1692 * up any GEM state.
1693 */
1694 void i915_driver_lastclose(struct drm_device * dev)
1695 {
1696 drm_i915_private_t *dev_priv = dev->dev_private;
1697
1698 /* On gen6+ we refuse to init without kms enabled, but then the drm core
1699 * goes right around and calls lastclose. Check for this and don't clean
1700 * up anything. */
1701 if (!dev_priv)
1702 return;
1703 dev_priv->isX = 0;
1704 if (drm_core_check_feature(dev, DRIVER_MODESET)) {
1705 intel_fb_restore_mode(dev);
1706 return;
1707 }
1708
1709 i915_gem_lastclose(dev);
1710
1711 (void) i915_dma_cleanup(dev);
1712 }
1713
1714 void i915_driver_preclose(struct drm_device * dev, struct drm_file *file_priv)
1715 {
1716 i915_gem_context_close(dev, file_priv);
1717 i915_gem_release(dev, file_priv);
1718 }
1719
1720 void i915_driver_entervt(struct drm_device *dev)
1721 {
1722 struct drm_i915_private *dev_priv = dev->dev_private;
1723
1724 /* Do nothing when coming back from high-res mode (VESA)*/
1725 if (dev_priv->fbcon_obj)
1726 return;
1727
1728 /* Need to do full modeset from VGA TEXT mode */
1729 if (dev_priv->vt_holding > 0) {
1730 (void) i915_restore_state(dev);
1731 if (IS_HASWELL(dev))
1732 intel_modeset_setup_hw_state(dev, false);
1733 else
1734 intel_modeset_setup_hw_state(dev, true);
1735 }
1736 dev_priv->vt_holding = 0;
1737 }
1738
1739 void i915_driver_leavevt(struct drm_device *dev)
1740 {
1741 drm_i915_private_t *dev_priv = dev->dev_private;
1742
1743 if (dev_priv->fbcon_obj)
1744 return;
1745
1746 (void) i915_save_state(dev);
1747
1748 if (IS_HASWELL(dev))
1749 intel_modeset_disable(dev);
1750
1751 dev_priv->vt_holding = 1;
1752 }
1753
1754 /* LINTED */
1755 void i915_driver_postclose(struct drm_device *dev, struct drm_file *file_priv)
1756 {
1757 struct drm_i915_file_private *i915_file_priv = file_priv->driver_priv;
1758 kfree(i915_file_priv, sizeof(*i915_file_priv));
1759 file_priv->driver_priv = NULL;
1760 }
1761
1762 struct drm_ioctl_desc i915_ioctls[] = {
1763 I915_IOCTL_DEF(DRM_IOCTL_I915_INIT, i915_dma_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY, NULL, NULL),
1764 I915_IOCTL_DEF(DRM_IOCTL_I915_FLUSH, i915_flush_ioctl, DRM_AUTH, NULL, NULL),
1765 I915_IOCTL_DEF(DRM_IOCTL_I915_FLIP, i915_flip_bufs, DRM_AUTH, NULL, NULL),
1766 I915_IOCTL_DEF(DRM_IOCTL_I915_BATCHBUFFER, i915_batchbuffer, DRM_AUTH, copyin32_i915_batchbuffer, NULL),
1767 I915_IOCTL_DEF(DRM_IOCTL_I915_IRQ_EMIT, i915_irq_emit, DRM_AUTH, copyin32_i915_irq_emit, NULL),
1768 I915_IOCTL_DEF(DRM_IOCTL_I915_IRQ_WAIT, i915_irq_wait, DRM_AUTH, NULL, NULL),
1769 I915_IOCTL_DEF(DRM_IOCTL_I915_GETPARAM, i915_getparam, DRM_AUTH, copyin32_i915_getparam, NULL),
1770 I915_IOCTL_DEF(DRM_IOCTL_I915_SETPARAM, i915_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY, NULL, NULL),
1771 I915_IOCTL_DEF(DRM_IOCTL_I915_ALLOC, drm_noop, DRM_AUTH, copyin32_i915_mem_alloc, NULL),
1772 I915_IOCTL_DEF(DRM_IOCTL_I915_FREE, drm_noop, DRM_AUTH, NULL, NULL),
1773 I915_IOCTL_DEF(DRM_IOCTL_I915_INIT_HEAP, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY, NULL, NULL),
1774 I915_IOCTL_DEF(DRM_IOCTL_I915_CMDBUFFER, i915_cmdbuffer, DRM_AUTH, copyin32_i915_cmdbuffer, NULL),
1775 I915_IOCTL_DEF(DRM_IOCTL_I915_DESTROY_HEAP, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY, NULL, NULL),
1776 I915_IOCTL_DEF(DRM_IOCTL_I915_GET_VBLANK_PIPE, i915_vblank_pipe_get, DRM_AUTH, NULL, NULL),
1777 I915_IOCTL_DEF(DRM_IOCTL_I915_VBLANK_SWAP, i915_vblank_swap, DRM_AUTH, NULL, NULL),
1778 I915_IOCTL_DEF(DRM_IOCTL_I915_HWS_ADDR, i915_set_status_page, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY, NULL, NULL),
1779 I915_IOCTL_DEF(DRM_IOCTL_I915_GEM_INIT, i915_gem_init_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED, NULL, NULL),
1780 I915_IOCTL_DEF(DRM_IOCTL_I915_GEM_EXECBUFFER, i915_gem_execbuffer, DRM_AUTH|DRM_UNLOCKED, NULL, NULL),
1781 I915_IOCTL_DEF(DRM_IOCTL_I915_GEM_EXECBUFFER2, i915_gem_execbuffer2, DRM_AUTH|DRM_UNLOCKED, NULL, NULL),
1782 I915_IOCTL_DEF(DRM_IOCTL_I915_GEM_PIN, i915_gem_pin_ioctl, DRM_AUTH|DRM_ROOT_ONLY|DRM_UNLOCKED, NULL, NULL),
1783 I915_IOCTL_DEF(DRM_IOCTL_I915_GEM_UNPIN, i915_gem_unpin_ioctl, DRM_AUTH|DRM_ROOT_ONLY|DRM_UNLOCKED, NULL, NULL),
1784 I915_IOCTL_DEF(DRM_IOCTL_I915_GEM_BUSY, i915_gem_busy_ioctl, DRM_AUTH|DRM_UNLOCKED, NULL, NULL),
1785 I915_IOCTL_DEF(DRM_IOCTL_I915_GEM_SET_CACHING, i915_gem_set_caching_ioctl, DRM_UNLOCKED, NULL, NULL),
1786 I915_IOCTL_DEF(DRM_IOCTL_I915_GEM_GET_CACHING, i915_gem_get_caching_ioctl, DRM_UNLOCKED, NULL, NULL),
1787 I915_IOCTL_DEF(DRM_IOCTL_I915_GEM_THROTTLE, i915_gem_throttle_ioctl, DRM_AUTH|DRM_UNLOCKED, NULL, NULL),
1788 I915_IOCTL_DEF(DRM_IOCTL_I915_GEM_ENTERVT, i915_gem_entervt_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED, NULL, NULL),
1789 I915_IOCTL_DEF(DRM_IOCTL_I915_GEM_LEAVEVT, i915_gem_leavevt_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED, NULL, NULL),
1790 I915_IOCTL_DEF(DRM_IOCTL_I915_GEM_CREATE, i915_gem_create_ioctl, DRM_UNLOCKED, NULL, NULL),
1791 I915_IOCTL_DEF(DRM_IOCTL_I915_GEM_PREAD, i915_gem_pread_ioctl, DRM_UNLOCKED, NULL, NULL),
1792 I915_IOCTL_DEF(DRM_IOCTL_I915_GEM_PWRITE, i915_gem_pwrite_ioctl, DRM_UNLOCKED, NULL, NULL),
1793 I915_IOCTL_DEF(DRM_IOCTL_I915_GEM_MMAP, i915_gem_mmap_ioctl, DRM_UNLOCKED, NULL, NULL),
1794 I915_IOCTL_DEF(DRM_IOCTL_I915_GEM_MMAP_GTT, i915_gem_mmap_gtt_ioctl, DRM_UNLOCKED, NULL, NULL),
1795 I915_IOCTL_DEF(DRM_IOCTL_I915_GEM_SET_DOMAIN, i915_gem_set_domain_ioctl, DRM_UNLOCKED, NULL, NULL),
1796 I915_IOCTL_DEF(DRM_IOCTL_I915_GEM_SW_FINISH, i915_gem_sw_finish_ioctl, DRM_UNLOCKED, NULL, NULL),
1797 I915_IOCTL_DEF(DRM_IOCTL_I915_GEM_SET_TILING, i915_gem_set_tiling, DRM_UNLOCKED, NULL, NULL),
1798 I915_IOCTL_DEF(DRM_IOCTL_I915_GEM_GET_TILING, i915_gem_get_tiling, DRM_UNLOCKED, NULL, NULL),
1799 I915_IOCTL_DEF(DRM_IOCTL_I915_GEM_GET_APERTURE, i915_gem_get_aperture_ioctl, DRM_UNLOCKED, NULL, NULL),
1800 I915_IOCTL_DEF(DRM_IOCTL_I915_GET_PIPE_FROM_CRTC_ID, intel_get_pipe_from_crtc_id, DRM_UNLOCKED, NULL, NULL),
1801 I915_IOCTL_DEF(DRM_IOCTL_I915_GEM_MADVISE, i915_gem_madvise_ioctl, DRM_UNLOCKED, NULL, NULL),
1802 I915_IOCTL_DEF(DRM_IOCTL_I915_OVERLAY_PUT_IMAGE, intel_overlay_put_image, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED, NULL, NULL),
1803 I915_IOCTL_DEF(DRM_IOCTL_I915_OVERLAY_ATTRS, intel_overlay_attrs, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED, NULL, NULL),
1804 I915_IOCTL_DEF(DRM_IOCTL_I915_SET_SPRITE_COLORKEY, intel_sprite_set_colorkey, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED, NULL, NULL),
1805 I915_IOCTL_DEF(DRM_IOCTL_I915_GET_SPRITE_COLORKEY, intel_sprite_get_colorkey, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED, NULL, NULL),
1806 I915_IOCTL_DEF(DRM_IOCTL_I915_GEM_WAIT, i915_gem_wait_ioctl, DRM_AUTH|DRM_UNLOCKED, NULL, NULL),
1807 I915_IOCTL_DEF(DRM_IOCTL_I915_GEM_CONTEXT_CREATE, i915_gem_context_create_ioctl, DRM_UNLOCKED, NULL, NULL),
1808 I915_IOCTL_DEF(DRM_IOCTL_I915_GEM_CONTEXT_DESTROY, i915_gem_context_destroy_ioctl, DRM_UNLOCKED, NULL, NULL),
1809 I915_IOCTL_DEF(DRM_IOCTL_I915_REG_READ, i915_reg_read_ioctl, DRM_UNLOCKED, NULL, NULL),
1810 };
1811
1812 int i915_max_ioctl = DRM_ARRAY_SIZE(i915_ioctls);
1813
1814 /**
1815 * Determine if the device really is AGP or not.
1816 *
1817 * All Intel graphics chipsets are treated as AGP, even if they are really
1818 */
1819 /* LINTED */
1820 int i915_driver_device_is_agp(struct drm_device * dev)
1821 {
1822 return 1;
1823 }
Unleashed OS - userland