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62fdfeaf EA |
1 | /* |
2 | * Copyright © 2008-2010 Intel Corporation | |
3 | * | |
4 | * Permission is hereby granted, free of charge, to any person obtaining a | |
5 | * copy of this software and associated documentation files (the "Software"), | |
6 | * to deal in the Software without restriction, including without limitation | |
7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
8 | * and/or sell copies of the Software, and to permit persons to whom the | |
9 | * Software is furnished to do so, subject to the following conditions: | |
10 | * | |
11 | * The above copyright notice and this permission notice (including the next | |
12 | * paragraph) shall be included in all copies or substantial portions of the | |
13 | * Software. | |
14 | * | |
15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS | |
21 | * IN THE SOFTWARE. | |
22 | * | |
23 | * Authors: | |
24 | * Eric Anholt <eric@anholt.net> | |
25 | * Zou Nan hai <nanhai.zou@intel.com> | |
26 | * Xiang Hai hao<haihao.xiang@intel.com> | |
27 | * | |
28 | */ | |
29 | ||
30 | #include "drmP.h" | |
31 | #include "drm.h" | |
62fdfeaf | 32 | #include "i915_drv.h" |
8187a2b7 | 33 | #include "i915_drm.h" |
62fdfeaf | 34 | #include "i915_trace.h" |
62fdfeaf | 35 | |
6f392d54 CW |
36 | static u32 i915_gem_get_seqno(struct drm_device *dev) |
37 | { | |
38 | drm_i915_private_t *dev_priv = dev->dev_private; | |
39 | u32 seqno; | |
40 | ||
41 | seqno = dev_priv->next_seqno; | |
42 | ||
43 | /* reserve 0 for non-seqno */ | |
44 | if (++dev_priv->next_seqno == 0) | |
45 | dev_priv->next_seqno = 1; | |
46 | ||
47 | return seqno; | |
48 | } | |
49 | ||
8187a2b7 ZN |
50 | static void |
51 | render_ring_flush(struct drm_device *dev, | |
52 | struct intel_ring_buffer *ring, | |
53 | u32 invalidate_domains, | |
54 | u32 flush_domains) | |
62fdfeaf | 55 | { |
6f392d54 CW |
56 | drm_i915_private_t *dev_priv = dev->dev_private; |
57 | u32 cmd; | |
58 | ||
62fdfeaf EA |
59 | #if WATCH_EXEC |
60 | DRM_INFO("%s: invalidate %08x flush %08x\n", __func__, | |
61 | invalidate_domains, flush_domains); | |
62 | #endif | |
6f392d54 CW |
63 | |
64 | trace_i915_gem_request_flush(dev, dev_priv->next_seqno, | |
62fdfeaf EA |
65 | invalidate_domains, flush_domains); |
66 | ||
62fdfeaf EA |
67 | if ((invalidate_domains | flush_domains) & I915_GEM_GPU_DOMAINS) { |
68 | /* | |
69 | * read/write caches: | |
70 | * | |
71 | * I915_GEM_DOMAIN_RENDER is always invalidated, but is | |
72 | * only flushed if MI_NO_WRITE_FLUSH is unset. On 965, it is | |
73 | * also flushed at 2d versus 3d pipeline switches. | |
74 | * | |
75 | * read-only caches: | |
76 | * | |
77 | * I915_GEM_DOMAIN_SAMPLER is flushed on pre-965 if | |
78 | * MI_READ_FLUSH is set, and is always flushed on 965. | |
79 | * | |
80 | * I915_GEM_DOMAIN_COMMAND may not exist? | |
81 | * | |
82 | * I915_GEM_DOMAIN_INSTRUCTION, which exists on 965, is | |
83 | * invalidated when MI_EXE_FLUSH is set. | |
84 | * | |
85 | * I915_GEM_DOMAIN_VERTEX, which exists on 965, is | |
86 | * invalidated with every MI_FLUSH. | |
87 | * | |
88 | * TLBs: | |
89 | * | |
90 | * On 965, TLBs associated with I915_GEM_DOMAIN_COMMAND | |
91 | * and I915_GEM_DOMAIN_CPU in are invalidated at PTE write and | |
92 | * I915_GEM_DOMAIN_RENDER and I915_GEM_DOMAIN_SAMPLER | |
93 | * are flushed at any MI_FLUSH. | |
94 | */ | |
95 | ||
96 | cmd = MI_FLUSH | MI_NO_WRITE_FLUSH; | |
97 | if ((invalidate_domains|flush_domains) & | |
98 | I915_GEM_DOMAIN_RENDER) | |
99 | cmd &= ~MI_NO_WRITE_FLUSH; | |
100 | if (!IS_I965G(dev)) { | |
101 | /* | |
102 | * On the 965, the sampler cache always gets flushed | |
103 | * and this bit is reserved. | |
104 | */ | |
105 | if (invalidate_domains & I915_GEM_DOMAIN_SAMPLER) | |
106 | cmd |= MI_READ_FLUSH; | |
107 | } | |
108 | if (invalidate_domains & I915_GEM_DOMAIN_INSTRUCTION) | |
109 | cmd |= MI_EXE_FLUSH; | |
110 | ||
111 | #if WATCH_EXEC | |
112 | DRM_INFO("%s: queue flush %08x to ring\n", __func__, cmd); | |
113 | #endif | |
be26a10b | 114 | intel_ring_begin(dev, ring, 2); |
8187a2b7 ZN |
115 | intel_ring_emit(dev, ring, cmd); |
116 | intel_ring_emit(dev, ring, MI_NOOP); | |
117 | intel_ring_advance(dev, ring); | |
62fdfeaf | 118 | } |
8187a2b7 ZN |
119 | } |
120 | ||
121 | static unsigned int render_ring_get_head(struct drm_device *dev, | |
122 | struct intel_ring_buffer *ring) | |
123 | { | |
124 | drm_i915_private_t *dev_priv = dev->dev_private; | |
125 | return I915_READ(PRB0_HEAD) & HEAD_ADDR; | |
126 | } | |
62fdfeaf | 127 | |
8187a2b7 ZN |
128 | static unsigned int render_ring_get_tail(struct drm_device *dev, |
129 | struct intel_ring_buffer *ring) | |
130 | { | |
131 | drm_i915_private_t *dev_priv = dev->dev_private; | |
132 | return I915_READ(PRB0_TAIL) & TAIL_ADDR; | |
62fdfeaf | 133 | } |
8187a2b7 ZN |
134 | |
135 | static unsigned int render_ring_get_active_head(struct drm_device *dev, | |
136 | struct intel_ring_buffer *ring) | |
137 | { | |
138 | drm_i915_private_t *dev_priv = dev->dev_private; | |
139 | u32 acthd_reg = IS_I965G(dev) ? ACTHD_I965 : ACTHD; | |
140 | ||
141 | return I915_READ(acthd_reg); | |
142 | } | |
143 | ||
144 | static void render_ring_advance_ring(struct drm_device *dev, | |
145 | struct intel_ring_buffer *ring) | |
146 | { | |
147 | drm_i915_private_t *dev_priv = dev->dev_private; | |
148 | I915_WRITE(PRB0_TAIL, ring->tail); | |
149 | } | |
150 | ||
151 | static int init_ring_common(struct drm_device *dev, | |
152 | struct intel_ring_buffer *ring) | |
153 | { | |
154 | u32 head; | |
155 | drm_i915_private_t *dev_priv = dev->dev_private; | |
156 | struct drm_i915_gem_object *obj_priv; | |
157 | obj_priv = to_intel_bo(ring->gem_object); | |
158 | ||
159 | /* Stop the ring if it's running. */ | |
160 | I915_WRITE(ring->regs.ctl, 0); | |
161 | I915_WRITE(ring->regs.head, 0); | |
162 | I915_WRITE(ring->regs.tail, 0); | |
163 | ||
164 | /* Initialize the ring. */ | |
165 | I915_WRITE(ring->regs.start, obj_priv->gtt_offset); | |
166 | head = ring->get_head(dev, ring); | |
167 | ||
168 | /* G45 ring initialization fails to reset head to zero */ | |
169 | if (head != 0) { | |
170 | DRM_ERROR("%s head not reset to zero " | |
171 | "ctl %08x head %08x tail %08x start %08x\n", | |
172 | ring->name, | |
173 | I915_READ(ring->regs.ctl), | |
174 | I915_READ(ring->regs.head), | |
175 | I915_READ(ring->regs.tail), | |
176 | I915_READ(ring->regs.start)); | |
177 | ||
178 | I915_WRITE(ring->regs.head, 0); | |
179 | ||
180 | DRM_ERROR("%s head forced to zero " | |
181 | "ctl %08x head %08x tail %08x start %08x\n", | |
182 | ring->name, | |
183 | I915_READ(ring->regs.ctl), | |
184 | I915_READ(ring->regs.head), | |
185 | I915_READ(ring->regs.tail), | |
186 | I915_READ(ring->regs.start)); | |
187 | } | |
188 | ||
189 | I915_WRITE(ring->regs.ctl, | |
190 | ((ring->gem_object->size - PAGE_SIZE) & RING_NR_PAGES) | |
191 | | RING_NO_REPORT | RING_VALID); | |
192 | ||
193 | head = I915_READ(ring->regs.head) & HEAD_ADDR; | |
194 | /* If the head is still not zero, the ring is dead */ | |
195 | if (head != 0) { | |
196 | DRM_ERROR("%s initialization failed " | |
197 | "ctl %08x head %08x tail %08x start %08x\n", | |
198 | ring->name, | |
199 | I915_READ(ring->regs.ctl), | |
200 | I915_READ(ring->regs.head), | |
201 | I915_READ(ring->regs.tail), | |
202 | I915_READ(ring->regs.start)); | |
203 | return -EIO; | |
204 | } | |
205 | ||
206 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
207 | i915_kernel_lost_context(dev); | |
208 | else { | |
209 | ring->head = ring->get_head(dev, ring); | |
210 | ring->tail = ring->get_tail(dev, ring); | |
211 | ring->space = ring->head - (ring->tail + 8); | |
212 | if (ring->space < 0) | |
213 | ring->space += ring->size; | |
214 | } | |
215 | return 0; | |
216 | } | |
217 | ||
218 | static int init_render_ring(struct drm_device *dev, | |
219 | struct intel_ring_buffer *ring) | |
220 | { | |
221 | drm_i915_private_t *dev_priv = dev->dev_private; | |
222 | int ret = init_ring_common(dev, ring); | |
a69ffdbf ZW |
223 | int mode; |
224 | ||
8187a2b7 | 225 | if (IS_I9XX(dev) && !IS_GEN3(dev)) { |
a69ffdbf ZW |
226 | mode = VS_TIMER_DISPATCH << 16 | VS_TIMER_DISPATCH; |
227 | if (IS_GEN6(dev)) | |
228 | mode |= MI_FLUSH_ENABLE << 16 | MI_FLUSH_ENABLE; | |
229 | I915_WRITE(MI_MODE, mode); | |
8187a2b7 ZN |
230 | } |
231 | return ret; | |
232 | } | |
233 | ||
62fdfeaf | 234 | #define PIPE_CONTROL_FLUSH(addr) \ |
8187a2b7 | 235 | do { \ |
62fdfeaf | 236 | OUT_RING(GFX_OP_PIPE_CONTROL | PIPE_CONTROL_QW_WRITE | \ |
ca76482e | 237 | PIPE_CONTROL_DEPTH_STALL | 2); \ |
62fdfeaf EA |
238 | OUT_RING(addr | PIPE_CONTROL_GLOBAL_GTT); \ |
239 | OUT_RING(0); \ | |
240 | OUT_RING(0); \ | |
8187a2b7 | 241 | } while (0) |
62fdfeaf EA |
242 | |
243 | /** | |
244 | * Creates a new sequence number, emitting a write of it to the status page | |
245 | * plus an interrupt, which will trigger i915_user_interrupt_handler. | |
246 | * | |
247 | * Must be called with struct_lock held. | |
248 | * | |
249 | * Returned sequence numbers are nonzero on success. | |
250 | */ | |
8187a2b7 ZN |
251 | static u32 |
252 | render_ring_add_request(struct drm_device *dev, | |
253 | struct intel_ring_buffer *ring, | |
254 | struct drm_file *file_priv, | |
255 | u32 flush_domains) | |
62fdfeaf EA |
256 | { |
257 | drm_i915_private_t *dev_priv = dev->dev_private; | |
6f392d54 CW |
258 | u32 seqno; |
259 | ||
260 | seqno = i915_gem_get_seqno(dev); | |
ca76482e ZW |
261 | |
262 | if (IS_GEN6(dev)) { | |
263 | BEGIN_LP_RING(6); | |
264 | OUT_RING(GFX_OP_PIPE_CONTROL | 3); | |
265 | OUT_RING(PIPE_CONTROL_QW_WRITE | | |
266 | PIPE_CONTROL_WC_FLUSH | PIPE_CONTROL_IS_FLUSH | | |
267 | PIPE_CONTROL_NOTIFY); | |
268 | OUT_RING(dev_priv->seqno_gfx_addr | PIPE_CONTROL_GLOBAL_GTT); | |
269 | OUT_RING(seqno); | |
270 | OUT_RING(0); | |
271 | OUT_RING(0); | |
272 | ADVANCE_LP_RING(); | |
273 | } else if (HAS_PIPE_CONTROL(dev)) { | |
62fdfeaf EA |
274 | u32 scratch_addr = dev_priv->seqno_gfx_addr + 128; |
275 | ||
276 | /* | |
277 | * Workaround qword write incoherence by flushing the | |
278 | * PIPE_NOTIFY buffers out to memory before requesting | |
279 | * an interrupt. | |
280 | */ | |
281 | BEGIN_LP_RING(32); | |
282 | OUT_RING(GFX_OP_PIPE_CONTROL | PIPE_CONTROL_QW_WRITE | | |
283 | PIPE_CONTROL_WC_FLUSH | PIPE_CONTROL_TC_FLUSH); | |
284 | OUT_RING(dev_priv->seqno_gfx_addr | PIPE_CONTROL_GLOBAL_GTT); | |
285 | OUT_RING(seqno); | |
286 | OUT_RING(0); | |
287 | PIPE_CONTROL_FLUSH(scratch_addr); | |
288 | scratch_addr += 128; /* write to separate cachelines */ | |
289 | PIPE_CONTROL_FLUSH(scratch_addr); | |
290 | scratch_addr += 128; | |
291 | PIPE_CONTROL_FLUSH(scratch_addr); | |
292 | scratch_addr += 128; | |
293 | PIPE_CONTROL_FLUSH(scratch_addr); | |
294 | scratch_addr += 128; | |
295 | PIPE_CONTROL_FLUSH(scratch_addr); | |
296 | scratch_addr += 128; | |
297 | PIPE_CONTROL_FLUSH(scratch_addr); | |
298 | OUT_RING(GFX_OP_PIPE_CONTROL | PIPE_CONTROL_QW_WRITE | | |
299 | PIPE_CONTROL_WC_FLUSH | PIPE_CONTROL_TC_FLUSH | | |
300 | PIPE_CONTROL_NOTIFY); | |
301 | OUT_RING(dev_priv->seqno_gfx_addr | PIPE_CONTROL_GLOBAL_GTT); | |
302 | OUT_RING(seqno); | |
303 | OUT_RING(0); | |
304 | ADVANCE_LP_RING(); | |
305 | } else { | |
306 | BEGIN_LP_RING(4); | |
307 | OUT_RING(MI_STORE_DWORD_INDEX); | |
308 | OUT_RING(I915_GEM_HWS_INDEX << MI_STORE_DWORD_INDEX_SHIFT); | |
309 | OUT_RING(seqno); | |
310 | ||
311 | OUT_RING(MI_USER_INTERRUPT); | |
312 | ADVANCE_LP_RING(); | |
313 | } | |
314 | return seqno; | |
315 | } | |
316 | ||
8187a2b7 ZN |
317 | static u32 |
318 | render_ring_get_gem_seqno(struct drm_device *dev, | |
319 | struct intel_ring_buffer *ring) | |
320 | { | |
321 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; | |
322 | if (HAS_PIPE_CONTROL(dev)) | |
323 | return ((volatile u32 *)(dev_priv->seqno_page))[0]; | |
324 | else | |
325 | return intel_read_status_page(ring, I915_GEM_HWS_INDEX); | |
326 | } | |
327 | ||
328 | static void | |
329 | render_ring_get_user_irq(struct drm_device *dev, | |
330 | struct intel_ring_buffer *ring) | |
62fdfeaf EA |
331 | { |
332 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; | |
333 | unsigned long irqflags; | |
334 | ||
335 | spin_lock_irqsave(&dev_priv->user_irq_lock, irqflags); | |
8187a2b7 | 336 | if (dev->irq_enabled && (++ring->user_irq_refcount == 1)) { |
62fdfeaf EA |
337 | if (HAS_PCH_SPLIT(dev)) |
338 | ironlake_enable_graphics_irq(dev_priv, GT_PIPE_NOTIFY); | |
339 | else | |
340 | i915_enable_irq(dev_priv, I915_USER_INTERRUPT); | |
341 | } | |
342 | spin_unlock_irqrestore(&dev_priv->user_irq_lock, irqflags); | |
343 | } | |
344 | ||
8187a2b7 ZN |
345 | static void |
346 | render_ring_put_user_irq(struct drm_device *dev, | |
347 | struct intel_ring_buffer *ring) | |
62fdfeaf EA |
348 | { |
349 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; | |
350 | unsigned long irqflags; | |
351 | ||
352 | spin_lock_irqsave(&dev_priv->user_irq_lock, irqflags); | |
8187a2b7 ZN |
353 | BUG_ON(dev->irq_enabled && ring->user_irq_refcount <= 0); |
354 | if (dev->irq_enabled && (--ring->user_irq_refcount == 0)) { | |
62fdfeaf EA |
355 | if (HAS_PCH_SPLIT(dev)) |
356 | ironlake_disable_graphics_irq(dev_priv, GT_PIPE_NOTIFY); | |
357 | else | |
358 | i915_disable_irq(dev_priv, I915_USER_INTERRUPT); | |
359 | } | |
360 | spin_unlock_irqrestore(&dev_priv->user_irq_lock, irqflags); | |
361 | } | |
362 | ||
8187a2b7 ZN |
363 | static void render_setup_status_page(struct drm_device *dev, |
364 | struct intel_ring_buffer *ring) | |
365 | { | |
366 | drm_i915_private_t *dev_priv = dev->dev_private; | |
367 | if (IS_GEN6(dev)) { | |
368 | I915_WRITE(HWS_PGA_GEN6, ring->status_page.gfx_addr); | |
369 | I915_READ(HWS_PGA_GEN6); /* posting read */ | |
370 | } else { | |
371 | I915_WRITE(HWS_PGA, ring->status_page.gfx_addr); | |
372 | I915_READ(HWS_PGA); /* posting read */ | |
373 | } | |
374 | ||
375 | } | |
376 | ||
d1b851fc ZN |
377 | void |
378 | bsd_ring_flush(struct drm_device *dev, | |
379 | struct intel_ring_buffer *ring, | |
380 | u32 invalidate_domains, | |
381 | u32 flush_domains) | |
382 | { | |
be26a10b | 383 | intel_ring_begin(dev, ring, 2); |
d1b851fc ZN |
384 | intel_ring_emit(dev, ring, MI_FLUSH); |
385 | intel_ring_emit(dev, ring, MI_NOOP); | |
386 | intel_ring_advance(dev, ring); | |
387 | } | |
388 | ||
389 | static inline unsigned int bsd_ring_get_head(struct drm_device *dev, | |
390 | struct intel_ring_buffer *ring) | |
391 | { | |
392 | drm_i915_private_t *dev_priv = dev->dev_private; | |
393 | return I915_READ(BSD_RING_HEAD) & HEAD_ADDR; | |
394 | } | |
395 | ||
396 | static inline unsigned int bsd_ring_get_tail(struct drm_device *dev, | |
397 | struct intel_ring_buffer *ring) | |
398 | { | |
399 | drm_i915_private_t *dev_priv = dev->dev_private; | |
400 | return I915_READ(BSD_RING_TAIL) & TAIL_ADDR; | |
401 | } | |
402 | ||
403 | static inline unsigned int bsd_ring_get_active_head(struct drm_device *dev, | |
404 | struct intel_ring_buffer *ring) | |
405 | { | |
406 | drm_i915_private_t *dev_priv = dev->dev_private; | |
407 | return I915_READ(BSD_RING_ACTHD); | |
408 | } | |
409 | ||
410 | static inline void bsd_ring_advance_ring(struct drm_device *dev, | |
411 | struct intel_ring_buffer *ring) | |
412 | { | |
413 | drm_i915_private_t *dev_priv = dev->dev_private; | |
414 | I915_WRITE(BSD_RING_TAIL, ring->tail); | |
415 | } | |
416 | ||
417 | static int init_bsd_ring(struct drm_device *dev, | |
418 | struct intel_ring_buffer *ring) | |
419 | { | |
420 | return init_ring_common(dev, ring); | |
421 | } | |
422 | ||
423 | static u32 | |
424 | bsd_ring_add_request(struct drm_device *dev, | |
425 | struct intel_ring_buffer *ring, | |
426 | struct drm_file *file_priv, | |
427 | u32 flush_domains) | |
428 | { | |
429 | u32 seqno; | |
6f392d54 CW |
430 | |
431 | seqno = i915_gem_get_seqno(dev); | |
432 | ||
d1b851fc ZN |
433 | intel_ring_begin(dev, ring, 4); |
434 | intel_ring_emit(dev, ring, MI_STORE_DWORD_INDEX); | |
435 | intel_ring_emit(dev, ring, | |
436 | I915_GEM_HWS_INDEX << MI_STORE_DWORD_INDEX_SHIFT); | |
437 | intel_ring_emit(dev, ring, seqno); | |
438 | intel_ring_emit(dev, ring, MI_USER_INTERRUPT); | |
439 | intel_ring_advance(dev, ring); | |
440 | ||
441 | DRM_DEBUG_DRIVER("%s %d\n", ring->name, seqno); | |
442 | ||
443 | return seqno; | |
444 | } | |
445 | ||
446 | static void bsd_setup_status_page(struct drm_device *dev, | |
447 | struct intel_ring_buffer *ring) | |
448 | { | |
449 | drm_i915_private_t *dev_priv = dev->dev_private; | |
450 | I915_WRITE(BSD_HWS_PGA, ring->status_page.gfx_addr); | |
451 | I915_READ(BSD_HWS_PGA); | |
452 | } | |
453 | ||
454 | static void | |
455 | bsd_ring_get_user_irq(struct drm_device *dev, | |
456 | struct intel_ring_buffer *ring) | |
457 | { | |
458 | /* do nothing */ | |
459 | } | |
460 | static void | |
461 | bsd_ring_put_user_irq(struct drm_device *dev, | |
462 | struct intel_ring_buffer *ring) | |
463 | { | |
464 | /* do nothing */ | |
465 | } | |
466 | ||
467 | static u32 | |
468 | bsd_ring_get_gem_seqno(struct drm_device *dev, | |
469 | struct intel_ring_buffer *ring) | |
470 | { | |
471 | return intel_read_status_page(ring, I915_GEM_HWS_INDEX); | |
472 | } | |
473 | ||
474 | static int | |
475 | bsd_ring_dispatch_gem_execbuffer(struct drm_device *dev, | |
476 | struct intel_ring_buffer *ring, | |
477 | struct drm_i915_gem_execbuffer2 *exec, | |
478 | struct drm_clip_rect *cliprects, | |
479 | uint64_t exec_offset) | |
480 | { | |
481 | uint32_t exec_start; | |
482 | exec_start = (uint32_t) exec_offset + exec->batch_start_offset; | |
483 | intel_ring_begin(dev, ring, 2); | |
484 | intel_ring_emit(dev, ring, MI_BATCH_BUFFER_START | | |
485 | (2 << 6) | MI_BATCH_NON_SECURE_I965); | |
486 | intel_ring_emit(dev, ring, exec_start); | |
487 | intel_ring_advance(dev, ring); | |
488 | return 0; | |
489 | } | |
490 | ||
491 | ||
8187a2b7 ZN |
492 | static int |
493 | render_ring_dispatch_gem_execbuffer(struct drm_device *dev, | |
494 | struct intel_ring_buffer *ring, | |
495 | struct drm_i915_gem_execbuffer2 *exec, | |
496 | struct drm_clip_rect *cliprects, | |
497 | uint64_t exec_offset) | |
62fdfeaf EA |
498 | { |
499 | drm_i915_private_t *dev_priv = dev->dev_private; | |
500 | int nbox = exec->num_cliprects; | |
501 | int i = 0, count; | |
502 | uint32_t exec_start, exec_len; | |
62fdfeaf EA |
503 | exec_start = (uint32_t) exec_offset + exec->batch_start_offset; |
504 | exec_len = (uint32_t) exec->batch_len; | |
505 | ||
6f392d54 | 506 | trace_i915_gem_request_submit(dev, dev_priv->next_seqno + 1); |
62fdfeaf EA |
507 | |
508 | count = nbox ? nbox : 1; | |
509 | ||
510 | for (i = 0; i < count; i++) { | |
511 | if (i < nbox) { | |
512 | int ret = i915_emit_box(dev, cliprects, i, | |
513 | exec->DR1, exec->DR4); | |
514 | if (ret) | |
515 | return ret; | |
516 | } | |
517 | ||
518 | if (IS_I830(dev) || IS_845G(dev)) { | |
8187a2b7 ZN |
519 | intel_ring_begin(dev, ring, 4); |
520 | intel_ring_emit(dev, ring, MI_BATCH_BUFFER); | |
521 | intel_ring_emit(dev, ring, | |
522 | exec_start | MI_BATCH_NON_SECURE); | |
523 | intel_ring_emit(dev, ring, exec_start + exec_len - 4); | |
524 | intel_ring_emit(dev, ring, 0); | |
62fdfeaf | 525 | } else { |
8187a2b7 | 526 | intel_ring_begin(dev, ring, 4); |
62fdfeaf | 527 | if (IS_I965G(dev)) { |
8187a2b7 ZN |
528 | intel_ring_emit(dev, ring, |
529 | MI_BATCH_BUFFER_START | (2 << 6) | |
530 | | MI_BATCH_NON_SECURE_I965); | |
531 | intel_ring_emit(dev, ring, exec_start); | |
62fdfeaf | 532 | } else { |
8187a2b7 ZN |
533 | intel_ring_emit(dev, ring, MI_BATCH_BUFFER_START |
534 | | (2 << 6)); | |
535 | intel_ring_emit(dev, ring, exec_start | | |
536 | MI_BATCH_NON_SECURE); | |
62fdfeaf | 537 | } |
62fdfeaf | 538 | } |
8187a2b7 | 539 | intel_ring_advance(dev, ring); |
62fdfeaf EA |
540 | } |
541 | ||
1cafd347 ZN |
542 | if (IS_G4X(dev) || IS_IRONLAKE(dev)) { |
543 | intel_ring_begin(dev, ring, 2); | |
544 | intel_ring_emit(dev, ring, MI_FLUSH | | |
545 | MI_NO_WRITE_FLUSH | | |
546 | MI_INVALIDATE_ISP ); | |
547 | intel_ring_emit(dev, ring, MI_NOOP); | |
548 | intel_ring_advance(dev, ring); | |
549 | } | |
62fdfeaf | 550 | /* XXX breadcrumb */ |
1cafd347 | 551 | |
62fdfeaf EA |
552 | return 0; |
553 | } | |
554 | ||
8187a2b7 ZN |
555 | static void cleanup_status_page(struct drm_device *dev, |
556 | struct intel_ring_buffer *ring) | |
62fdfeaf EA |
557 | { |
558 | drm_i915_private_t *dev_priv = dev->dev_private; | |
559 | struct drm_gem_object *obj; | |
560 | struct drm_i915_gem_object *obj_priv; | |
561 | ||
8187a2b7 ZN |
562 | obj = ring->status_page.obj; |
563 | if (obj == NULL) | |
62fdfeaf | 564 | return; |
62fdfeaf EA |
565 | obj_priv = to_intel_bo(obj); |
566 | ||
567 | kunmap(obj_priv->pages[0]); | |
568 | i915_gem_object_unpin(obj); | |
569 | drm_gem_object_unreference(obj); | |
8187a2b7 | 570 | ring->status_page.obj = NULL; |
62fdfeaf EA |
571 | |
572 | memset(&dev_priv->hws_map, 0, sizeof(dev_priv->hws_map)); | |
62fdfeaf EA |
573 | } |
574 | ||
8187a2b7 ZN |
575 | static int init_status_page(struct drm_device *dev, |
576 | struct intel_ring_buffer *ring) | |
62fdfeaf EA |
577 | { |
578 | drm_i915_private_t *dev_priv = dev->dev_private; | |
579 | struct drm_gem_object *obj; | |
580 | struct drm_i915_gem_object *obj_priv; | |
581 | int ret; | |
582 | ||
62fdfeaf EA |
583 | obj = i915_gem_alloc_object(dev, 4096); |
584 | if (obj == NULL) { | |
585 | DRM_ERROR("Failed to allocate status page\n"); | |
586 | ret = -ENOMEM; | |
587 | goto err; | |
588 | } | |
589 | obj_priv = to_intel_bo(obj); | |
590 | obj_priv->agp_type = AGP_USER_CACHED_MEMORY; | |
591 | ||
592 | ret = i915_gem_object_pin(obj, 4096); | |
593 | if (ret != 0) { | |
62fdfeaf EA |
594 | goto err_unref; |
595 | } | |
596 | ||
8187a2b7 ZN |
597 | ring->status_page.gfx_addr = obj_priv->gtt_offset; |
598 | ring->status_page.page_addr = kmap(obj_priv->pages[0]); | |
599 | if (ring->status_page.page_addr == NULL) { | |
62fdfeaf | 600 | memset(&dev_priv->hws_map, 0, sizeof(dev_priv->hws_map)); |
62fdfeaf EA |
601 | goto err_unpin; |
602 | } | |
8187a2b7 ZN |
603 | ring->status_page.obj = obj; |
604 | memset(ring->status_page.page_addr, 0, PAGE_SIZE); | |
62fdfeaf | 605 | |
8187a2b7 ZN |
606 | ring->setup_status_page(dev, ring); |
607 | DRM_DEBUG_DRIVER("%s hws offset: 0x%08x\n", | |
608 | ring->name, ring->status_page.gfx_addr); | |
62fdfeaf EA |
609 | |
610 | return 0; | |
611 | ||
612 | err_unpin: | |
613 | i915_gem_object_unpin(obj); | |
614 | err_unref: | |
615 | drm_gem_object_unreference(obj); | |
616 | err: | |
8187a2b7 | 617 | return ret; |
62fdfeaf EA |
618 | } |
619 | ||
8187a2b7 ZN |
620 | |
621 | int intel_init_ring_buffer(struct drm_device *dev, | |
622 | struct intel_ring_buffer *ring) | |
62fdfeaf | 623 | { |
8187a2b7 ZN |
624 | struct drm_i915_gem_object *obj_priv; |
625 | struct drm_gem_object *obj; | |
dd785e35 CW |
626 | int ret; |
627 | ||
8187a2b7 | 628 | ring->dev = dev; |
62fdfeaf | 629 | |
8187a2b7 ZN |
630 | if (I915_NEED_GFX_HWS(dev)) { |
631 | ret = init_status_page(dev, ring); | |
632 | if (ret) | |
633 | return ret; | |
634 | } | |
62fdfeaf | 635 | |
8187a2b7 | 636 | obj = i915_gem_alloc_object(dev, ring->size); |
62fdfeaf EA |
637 | if (obj == NULL) { |
638 | DRM_ERROR("Failed to allocate ringbuffer\n"); | |
8187a2b7 | 639 | ret = -ENOMEM; |
dd785e35 | 640 | goto err_hws; |
62fdfeaf | 641 | } |
62fdfeaf | 642 | |
8187a2b7 ZN |
643 | ring->gem_object = obj; |
644 | ||
645 | ret = i915_gem_object_pin(obj, ring->alignment); | |
dd785e35 CW |
646 | if (ret) |
647 | goto err_unref; | |
62fdfeaf | 648 | |
8187a2b7 ZN |
649 | obj_priv = to_intel_bo(obj); |
650 | ring->map.size = ring->size; | |
62fdfeaf | 651 | ring->map.offset = dev->agp->base + obj_priv->gtt_offset; |
62fdfeaf EA |
652 | ring->map.type = 0; |
653 | ring->map.flags = 0; | |
654 | ring->map.mtrr = 0; | |
655 | ||
656 | drm_core_ioremap_wc(&ring->map, dev); | |
657 | if (ring->map.handle == NULL) { | |
658 | DRM_ERROR("Failed to map ringbuffer.\n"); | |
8187a2b7 | 659 | ret = -EINVAL; |
dd785e35 | 660 | goto err_unpin; |
62fdfeaf EA |
661 | } |
662 | ||
8187a2b7 ZN |
663 | ring->virtual_start = ring->map.handle; |
664 | ret = ring->init(dev, ring); | |
dd785e35 CW |
665 | if (ret) |
666 | goto err_unmap; | |
62fdfeaf | 667 | |
62fdfeaf EA |
668 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
669 | i915_kernel_lost_context(dev); | |
670 | else { | |
8187a2b7 ZN |
671 | ring->head = ring->get_head(dev, ring); |
672 | ring->tail = ring->get_tail(dev, ring); | |
62fdfeaf EA |
673 | ring->space = ring->head - (ring->tail + 8); |
674 | if (ring->space < 0) | |
8187a2b7 | 675 | ring->space += ring->size; |
62fdfeaf | 676 | } |
8187a2b7 ZN |
677 | INIT_LIST_HEAD(&ring->active_list); |
678 | INIT_LIST_HEAD(&ring->request_list); | |
679 | return ret; | |
dd785e35 CW |
680 | |
681 | err_unmap: | |
682 | drm_core_ioremapfree(&ring->map, dev); | |
683 | err_unpin: | |
684 | i915_gem_object_unpin(obj); | |
685 | err_unref: | |
686 | drm_gem_object_unreference(obj); | |
687 | ring->gem_object = NULL; | |
688 | err_hws: | |
8187a2b7 ZN |
689 | cleanup_status_page(dev, ring); |
690 | return ret; | |
62fdfeaf EA |
691 | } |
692 | ||
8187a2b7 ZN |
693 | void intel_cleanup_ring_buffer(struct drm_device *dev, |
694 | struct intel_ring_buffer *ring) | |
62fdfeaf | 695 | { |
8187a2b7 | 696 | if (ring->gem_object == NULL) |
62fdfeaf EA |
697 | return; |
698 | ||
8187a2b7 | 699 | drm_core_ioremapfree(&ring->map, dev); |
62fdfeaf | 700 | |
8187a2b7 ZN |
701 | i915_gem_object_unpin(ring->gem_object); |
702 | drm_gem_object_unreference(ring->gem_object); | |
703 | ring->gem_object = NULL; | |
704 | cleanup_status_page(dev, ring); | |
62fdfeaf EA |
705 | } |
706 | ||
8187a2b7 ZN |
707 | int intel_wrap_ring_buffer(struct drm_device *dev, |
708 | struct intel_ring_buffer *ring) | |
62fdfeaf | 709 | { |
8187a2b7 | 710 | unsigned int *virt; |
62fdfeaf | 711 | int rem; |
8187a2b7 | 712 | rem = ring->size - ring->tail; |
62fdfeaf | 713 | |
8187a2b7 ZN |
714 | if (ring->space < rem) { |
715 | int ret = intel_wait_ring_buffer(dev, ring, rem); | |
62fdfeaf EA |
716 | if (ret) |
717 | return ret; | |
718 | } | |
62fdfeaf | 719 | |
8187a2b7 | 720 | virt = (unsigned int *)(ring->virtual_start + ring->tail); |
1741dd4a CW |
721 | rem /= 8; |
722 | while (rem--) { | |
62fdfeaf | 723 | *virt++ = MI_NOOP; |
1741dd4a CW |
724 | *virt++ = MI_NOOP; |
725 | } | |
62fdfeaf | 726 | |
8187a2b7 | 727 | ring->tail = 0; |
43ed340a | 728 | ring->space = ring->head - 8; |
62fdfeaf EA |
729 | |
730 | return 0; | |
731 | } | |
732 | ||
8187a2b7 ZN |
733 | int intel_wait_ring_buffer(struct drm_device *dev, |
734 | struct intel_ring_buffer *ring, int n) | |
62fdfeaf | 735 | { |
8187a2b7 | 736 | unsigned long end; |
62fdfeaf EA |
737 | |
738 | trace_i915_ring_wait_begin (dev); | |
8187a2b7 ZN |
739 | end = jiffies + 3 * HZ; |
740 | do { | |
741 | ring->head = ring->get_head(dev, ring); | |
62fdfeaf EA |
742 | ring->space = ring->head - (ring->tail + 8); |
743 | if (ring->space < 0) | |
8187a2b7 | 744 | ring->space += ring->size; |
62fdfeaf EA |
745 | if (ring->space >= n) { |
746 | trace_i915_ring_wait_end (dev); | |
747 | return 0; | |
748 | } | |
749 | ||
750 | if (dev->primary->master) { | |
751 | struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv; | |
752 | if (master_priv->sarea_priv) | |
753 | master_priv->sarea_priv->perf_boxes |= I915_BOX_WAIT; | |
754 | } | |
d1b851fc | 755 | |
8187a2b7 ZN |
756 | yield(); |
757 | } while (!time_after(jiffies, end)); | |
758 | trace_i915_ring_wait_end (dev); | |
759 | return -EBUSY; | |
760 | } | |
62fdfeaf | 761 | |
8187a2b7 | 762 | void intel_ring_begin(struct drm_device *dev, |
be26a10b | 763 | struct intel_ring_buffer *ring, int num_dwords) |
8187a2b7 | 764 | { |
be26a10b | 765 | int n = 4*num_dwords; |
8187a2b7 ZN |
766 | if (unlikely(ring->tail + n > ring->size)) |
767 | intel_wrap_ring_buffer(dev, ring); | |
768 | if (unlikely(ring->space < n)) | |
769 | intel_wait_ring_buffer(dev, ring, n); | |
d97ed339 CW |
770 | |
771 | ring->space -= n; | |
8187a2b7 | 772 | } |
62fdfeaf | 773 | |
8187a2b7 ZN |
774 | void intel_ring_advance(struct drm_device *dev, |
775 | struct intel_ring_buffer *ring) | |
776 | { | |
d97ed339 | 777 | ring->tail &= ring->size - 1; |
8187a2b7 ZN |
778 | ring->advance_ring(dev, ring); |
779 | } | |
62fdfeaf | 780 | |
8187a2b7 ZN |
781 | void intel_fill_struct(struct drm_device *dev, |
782 | struct intel_ring_buffer *ring, | |
783 | void *data, | |
784 | unsigned int len) | |
785 | { | |
786 | unsigned int *virt = ring->virtual_start + ring->tail; | |
787 | BUG_ON((len&~(4-1)) != 0); | |
be26a10b | 788 | intel_ring_begin(dev, ring, len/4); |
8187a2b7 ZN |
789 | memcpy(virt, data, len); |
790 | ring->tail += len; | |
791 | ring->tail &= ring->size - 1; | |
792 | ring->space -= len; | |
793 | intel_ring_advance(dev, ring); | |
794 | } | |
62fdfeaf | 795 | |
8187a2b7 ZN |
796 | struct intel_ring_buffer render_ring = { |
797 | .name = "render ring", | |
798 | .regs = { | |
799 | .ctl = PRB0_CTL, | |
800 | .head = PRB0_HEAD, | |
801 | .tail = PRB0_TAIL, | |
802 | .start = PRB0_START | |
803 | }, | |
804 | .ring_flag = I915_EXEC_RENDER, | |
805 | .size = 32 * PAGE_SIZE, | |
806 | .alignment = PAGE_SIZE, | |
807 | .virtual_start = NULL, | |
808 | .dev = NULL, | |
809 | .gem_object = NULL, | |
810 | .head = 0, | |
811 | .tail = 0, | |
812 | .space = 0, | |
8187a2b7 ZN |
813 | .user_irq_refcount = 0, |
814 | .irq_gem_seqno = 0, | |
815 | .waiting_gem_seqno = 0, | |
816 | .setup_status_page = render_setup_status_page, | |
817 | .init = init_render_ring, | |
818 | .get_head = render_ring_get_head, | |
819 | .get_tail = render_ring_get_tail, | |
820 | .get_active_head = render_ring_get_active_head, | |
821 | .advance_ring = render_ring_advance_ring, | |
822 | .flush = render_ring_flush, | |
823 | .add_request = render_ring_add_request, | |
824 | .get_gem_seqno = render_ring_get_gem_seqno, | |
825 | .user_irq_get = render_ring_get_user_irq, | |
826 | .user_irq_put = render_ring_put_user_irq, | |
827 | .dispatch_gem_execbuffer = render_ring_dispatch_gem_execbuffer, | |
828 | .status_page = {NULL, 0, NULL}, | |
829 | .map = {0,} | |
830 | }; | |
d1b851fc ZN |
831 | |
832 | /* ring buffer for bit-stream decoder */ | |
833 | ||
834 | struct intel_ring_buffer bsd_ring = { | |
835 | .name = "bsd ring", | |
836 | .regs = { | |
837 | .ctl = BSD_RING_CTL, | |
838 | .head = BSD_RING_HEAD, | |
839 | .tail = BSD_RING_TAIL, | |
840 | .start = BSD_RING_START | |
841 | }, | |
842 | .ring_flag = I915_EXEC_BSD, | |
843 | .size = 32 * PAGE_SIZE, | |
844 | .alignment = PAGE_SIZE, | |
845 | .virtual_start = NULL, | |
846 | .dev = NULL, | |
847 | .gem_object = NULL, | |
848 | .head = 0, | |
849 | .tail = 0, | |
850 | .space = 0, | |
d1b851fc ZN |
851 | .user_irq_refcount = 0, |
852 | .irq_gem_seqno = 0, | |
853 | .waiting_gem_seqno = 0, | |
854 | .setup_status_page = bsd_setup_status_page, | |
855 | .init = init_bsd_ring, | |
856 | .get_head = bsd_ring_get_head, | |
857 | .get_tail = bsd_ring_get_tail, | |
858 | .get_active_head = bsd_ring_get_active_head, | |
859 | .advance_ring = bsd_ring_advance_ring, | |
860 | .flush = bsd_ring_flush, | |
861 | .add_request = bsd_ring_add_request, | |
862 | .get_gem_seqno = bsd_ring_get_gem_seqno, | |
863 | .user_irq_get = bsd_ring_get_user_irq, | |
864 | .user_irq_put = bsd_ring_put_user_irq, | |
865 | .dispatch_gem_execbuffer = bsd_ring_dispatch_gem_execbuffer, | |
866 | .status_page = {NULL, 0, NULL}, | |
867 | .map = {0,} | |
868 | }; |