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r600g: atomize streamout enabling
[mesa.git] / src / gallium / drivers / r600 / r600_hw_context.c
1 /*
2 * Copyright 2010 Jerome Glisse <glisse@freedesktop.org>
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 * on the rights to use, copy, modify, merge, publish, distribute, sub
8 * license, and/or sell copies of the Software, and to permit persons to whom
9 * the 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 NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
21 * USE OR OTHER DEALINGS IN THE SOFTWARE.
22 *
23 * Authors:
24 * Jerome Glisse
25 */
26 #include "r600_hw_context_priv.h"
27 #include "r600d.h"
28 #include "util/u_memory.h"
29 #include <errno.h>
30 #include <unistd.h>
31
32 /* Get backends mask */
33 void r600_get_backend_mask(struct r600_context *ctx)
34 {
35 struct radeon_winsys_cs *cs = ctx->rings.gfx.cs;
36 struct r600_resource *buffer;
37 uint32_t *results;
38 unsigned num_backends = ctx->screen->info.r600_num_backends;
39 unsigned i, mask = 0;
40 uint64_t va;
41
42 /* if backend_map query is supported by the kernel */
43 if (ctx->screen->info.r600_backend_map_valid) {
44 unsigned num_tile_pipes = ctx->screen->info.r600_num_tile_pipes;
45 unsigned backend_map = ctx->screen->info.r600_backend_map;
46 unsigned item_width, item_mask;
47
48 if (ctx->chip_class >= EVERGREEN) {
49 item_width = 4;
50 item_mask = 0x7;
51 } else {
52 item_width = 2;
53 item_mask = 0x3;
54 }
55
56 while(num_tile_pipes--) {
57 i = backend_map & item_mask;
58 mask |= (1<<i);
59 backend_map >>= item_width;
60 }
61 if (mask != 0) {
62 ctx->backend_mask = mask;
63 return;
64 }
65 }
66
67 /* otherwise backup path for older kernels */
68
69 /* create buffer for event data */
70 buffer = (struct r600_resource*)
71 pipe_buffer_create(&ctx->screen->screen, PIPE_BIND_CUSTOM,
72 PIPE_USAGE_STAGING, ctx->max_db*16);
73 if (!buffer)
74 goto err;
75 va = r600_resource_va(&ctx->screen->screen, (void*)buffer);
76
77 /* initialize buffer with zeroes */
78 results = r600_buffer_mmap_sync_with_rings(ctx, buffer, PIPE_TRANSFER_WRITE);
79 if (results) {
80 memset(results, 0, ctx->max_db * 4 * 4);
81 ctx->ws->buffer_unmap(buffer->cs_buf);
82
83 /* emit EVENT_WRITE for ZPASS_DONE */
84 cs->buf[cs->cdw++] = PKT3(PKT3_EVENT_WRITE, 2, 0);
85 cs->buf[cs->cdw++] = EVENT_TYPE(EVENT_TYPE_ZPASS_DONE) | EVENT_INDEX(1);
86 cs->buf[cs->cdw++] = va;
87 cs->buf[cs->cdw++] = (va >> 32UL) & 0xFF;
88
89 cs->buf[cs->cdw++] = PKT3(PKT3_NOP, 0, 0);
90 cs->buf[cs->cdw++] = r600_context_bo_reloc(ctx, &ctx->rings.gfx, buffer, RADEON_USAGE_WRITE);
91
92 /* analyze results */
93 results = r600_buffer_mmap_sync_with_rings(ctx, buffer, PIPE_TRANSFER_READ);
94 if (results) {
95 for(i = 0; i < ctx->max_db; i++) {
96 /* at least highest bit will be set if backend is used */
97 if (results[i*4 + 1])
98 mask |= (1<<i);
99 }
100 ctx->ws->buffer_unmap(buffer->cs_buf);
101 }
102 }
103
104 pipe_resource_reference((struct pipe_resource**)&buffer, NULL);
105
106 if (mask != 0) {
107 ctx->backend_mask = mask;
108 return;
109 }
110
111 err:
112 /* fallback to old method - set num_backends lower bits to 1 */
113 ctx->backend_mask = (~((uint32_t)0))>>(32-num_backends);
114 return;
115 }
116
117 static void r600_init_block(struct r600_context *ctx,
118 struct r600_block *block,
119 const struct r600_reg *reg, int index, int nreg,
120 unsigned opcode, unsigned offset_base)
121 {
122 int i = index;
123 int j, n = nreg;
124
125 /* initialize block */
126 block->flags = 0;
127 block->status |= R600_BLOCK_STATUS_DIRTY; /* dirty all blocks at start */
128 block->start_offset = reg[i].offset;
129 block->pm4[block->pm4_ndwords++] = PKT3(opcode, n, 0);
130 block->pm4[block->pm4_ndwords++] = (block->start_offset - offset_base) >> 2;
131 block->reg = &block->pm4[block->pm4_ndwords];
132 block->pm4_ndwords += n;
133 block->nreg = n;
134 block->nreg_dirty = n;
135 LIST_INITHEAD(&block->list);
136 LIST_INITHEAD(&block->enable_list);
137
138 for (j = 0; j < n; j++) {
139 if (reg[i+j].flags & REG_FLAG_DIRTY_ALWAYS) {
140 block->flags |= REG_FLAG_DIRTY_ALWAYS;
141 }
142 if (reg[i+j].flags & REG_FLAG_ENABLE_ALWAYS) {
143 if (!(block->status & R600_BLOCK_STATUS_ENABLED)) {
144 block->status |= R600_BLOCK_STATUS_ENABLED;
145 LIST_ADDTAIL(&block->enable_list, &ctx->enable_list);
146 LIST_ADDTAIL(&block->list,&ctx->dirty);
147 }
148 }
149 if (reg[i+j].flags & REG_FLAG_FLUSH_CHANGE) {
150 block->flags |= REG_FLAG_FLUSH_CHANGE;
151 }
152
153 if (reg[i+j].flags & REG_FLAG_NEED_BO) {
154 block->nbo++;
155 assert(block->nbo < R600_BLOCK_MAX_BO);
156 block->pm4_bo_index[j] = block->nbo;
157 block->pm4[block->pm4_ndwords++] = PKT3(PKT3_NOP, 0, 0);
158 block->pm4[block->pm4_ndwords++] = 0x00000000;
159 block->reloc[block->nbo].bo_pm4_index = block->pm4_ndwords - 1;
160 }
161 }
162 /* check that we stay in limit */
163 assert(block->pm4_ndwords < R600_BLOCK_MAX_REG);
164 }
165
166 int r600_context_add_block(struct r600_context *ctx, const struct r600_reg *reg, unsigned nreg,
167 unsigned opcode, unsigned offset_base)
168 {
169 struct r600_block *block;
170 struct r600_range *range;
171 int offset;
172
173 for (unsigned i = 0, n = 0; i < nreg; i += n) {
174 /* ignore new block balise */
175 if (reg[i].offset == GROUP_FORCE_NEW_BLOCK) {
176 n = 1;
177 continue;
178 }
179
180 /* register that need relocation are in their own group */
181 /* find number of consecutive registers */
182 n = 0;
183 offset = reg[i].offset;
184 while (reg[i + n].offset == offset) {
185 n++;
186 offset += 4;
187 if ((n + i) >= nreg)
188 break;
189 if (n >= (R600_BLOCK_MAX_REG - 2))
190 break;
191 }
192
193 /* allocate new block */
194 block = calloc(1, sizeof(struct r600_block));
195 if (block == NULL) {
196 return -ENOMEM;
197 }
198 ctx->nblocks++;
199 for (int j = 0; j < n; j++) {
200 range = &ctx->range[CTX_RANGE_ID(reg[i + j].offset)];
201 /* create block table if it doesn't exist */
202 if (!range->blocks)
203 range->blocks = calloc(1 << HASH_SHIFT, sizeof(void *));
204 if (!range->blocks) {
205 free(block);
206 return -1;
207 }
208
209 range->blocks[CTX_BLOCK_ID(reg[i + j].offset)] = block;
210 }
211
212 r600_init_block(ctx, block, reg, i, n, opcode, offset_base);
213
214 }
215 return 0;
216 }
217
218 static const struct r600_reg r600_context_reg_list[] = {
219 {R_028D24_DB_HTILE_SURFACE, 0, 0},
220 {R_028614_SPI_VS_OUT_ID_0, 0, 0},
221 {R_028618_SPI_VS_OUT_ID_1, 0, 0},
222 {R_02861C_SPI_VS_OUT_ID_2, 0, 0},
223 {R_028620_SPI_VS_OUT_ID_3, 0, 0},
224 {R_028624_SPI_VS_OUT_ID_4, 0, 0},
225 {R_028628_SPI_VS_OUT_ID_5, 0, 0},
226 {R_02862C_SPI_VS_OUT_ID_6, 0, 0},
227 {R_028630_SPI_VS_OUT_ID_7, 0, 0},
228 {R_028634_SPI_VS_OUT_ID_8, 0, 0},
229 {R_028638_SPI_VS_OUT_ID_9, 0, 0},
230 {R_0286C4_SPI_VS_OUT_CONFIG, 0, 0},
231 {GROUP_FORCE_NEW_BLOCK, 0, 0},
232 {R_028858_SQ_PGM_START_VS, REG_FLAG_NEED_BO, 0},
233 {GROUP_FORCE_NEW_BLOCK, 0, 0},
234 {R_028868_SQ_PGM_RESOURCES_VS, 0, 0},
235 {GROUP_FORCE_NEW_BLOCK, 0, 0},
236 {R_0288A4_SQ_PGM_RESOURCES_FS, 0, 0},
237 {R_0288DC_SQ_PGM_CF_OFFSET_FS, 0, 0},
238 {R_028644_SPI_PS_INPUT_CNTL_0, 0, 0},
239 {R_028648_SPI_PS_INPUT_CNTL_1, 0, 0},
240 {R_02864C_SPI_PS_INPUT_CNTL_2, 0, 0},
241 {R_028650_SPI_PS_INPUT_CNTL_3, 0, 0},
242 {R_028654_SPI_PS_INPUT_CNTL_4, 0, 0},
243 {R_028658_SPI_PS_INPUT_CNTL_5, 0, 0},
244 {R_02865C_SPI_PS_INPUT_CNTL_6, 0, 0},
245 {R_028660_SPI_PS_INPUT_CNTL_7, 0, 0},
246 {R_028664_SPI_PS_INPUT_CNTL_8, 0, 0},
247 {R_028668_SPI_PS_INPUT_CNTL_9, 0, 0},
248 {R_02866C_SPI_PS_INPUT_CNTL_10, 0, 0},
249 {R_028670_SPI_PS_INPUT_CNTL_11, 0, 0},
250 {R_028674_SPI_PS_INPUT_CNTL_12, 0, 0},
251 {R_028678_SPI_PS_INPUT_CNTL_13, 0, 0},
252 {R_02867C_SPI_PS_INPUT_CNTL_14, 0, 0},
253 {R_028680_SPI_PS_INPUT_CNTL_15, 0, 0},
254 {R_028684_SPI_PS_INPUT_CNTL_16, 0, 0},
255 {R_028688_SPI_PS_INPUT_CNTL_17, 0, 0},
256 {R_02868C_SPI_PS_INPUT_CNTL_18, 0, 0},
257 {R_028690_SPI_PS_INPUT_CNTL_19, 0, 0},
258 {R_028694_SPI_PS_INPUT_CNTL_20, 0, 0},
259 {R_028698_SPI_PS_INPUT_CNTL_21, 0, 0},
260 {R_02869C_SPI_PS_INPUT_CNTL_22, 0, 0},
261 {R_0286A0_SPI_PS_INPUT_CNTL_23, 0, 0},
262 {R_0286A4_SPI_PS_INPUT_CNTL_24, 0, 0},
263 {R_0286A8_SPI_PS_INPUT_CNTL_25, 0, 0},
264 {R_0286AC_SPI_PS_INPUT_CNTL_26, 0, 0},
265 {R_0286B0_SPI_PS_INPUT_CNTL_27, 0, 0},
266 {R_0286B4_SPI_PS_INPUT_CNTL_28, 0, 0},
267 {R_0286B8_SPI_PS_INPUT_CNTL_29, 0, 0},
268 {R_0286BC_SPI_PS_INPUT_CNTL_30, 0, 0},
269 {R_0286C0_SPI_PS_INPUT_CNTL_31, 0, 0},
270 {R_0286CC_SPI_PS_IN_CONTROL_0, 0, 0},
271 {R_0286D0_SPI_PS_IN_CONTROL_1, 0, 0},
272 {R_0286D8_SPI_INPUT_Z, 0, 0},
273 {GROUP_FORCE_NEW_BLOCK, 0, 0},
274 {R_028840_SQ_PGM_START_PS, REG_FLAG_NEED_BO, 0},
275 {GROUP_FORCE_NEW_BLOCK, 0, 0},
276 {R_028850_SQ_PGM_RESOURCES_PS, 0, 0},
277 {R_028854_SQ_PGM_EXPORTS_PS, 0, 0},
278 };
279
280 /* initialize */
281 void r600_context_fini(struct r600_context *ctx)
282 {
283 struct r600_block *block;
284 struct r600_range *range;
285
286 if (ctx->range) {
287 for (int i = 0; i < NUM_RANGES; i++) {
288 if (!ctx->range[i].blocks)
289 continue;
290 for (int j = 0; j < (1 << HASH_SHIFT); j++) {
291 block = ctx->range[i].blocks[j];
292 if (block) {
293 for (int k = 0, offset = block->start_offset; k < block->nreg; k++, offset += 4) {
294 range = &ctx->range[CTX_RANGE_ID(offset)];
295 range->blocks[CTX_BLOCK_ID(offset)] = NULL;
296 }
297 for (int k = 1; k <= block->nbo; k++) {
298 pipe_resource_reference((struct pipe_resource**)&block->reloc[k].bo, NULL);
299 }
300 free(block);
301 }
302 }
303 free(ctx->range[i].blocks);
304 }
305 }
306 free(ctx->blocks);
307 }
308
309 int r600_setup_block_table(struct r600_context *ctx)
310 {
311 /* setup block table */
312 int c = 0;
313 ctx->blocks = calloc(ctx->nblocks, sizeof(void*));
314 if (!ctx->blocks)
315 return -ENOMEM;
316 for (int i = 0; i < NUM_RANGES; i++) {
317 if (!ctx->range[i].blocks)
318 continue;
319 for (int j = 0, add; j < (1 << HASH_SHIFT); j++) {
320 if (!ctx->range[i].blocks[j])
321 continue;
322
323 add = 1;
324 for (int k = 0; k < c; k++) {
325 if (ctx->blocks[k] == ctx->range[i].blocks[j]) {
326 add = 0;
327 break;
328 }
329 }
330 if (add) {
331 assert(c < ctx->nblocks);
332 ctx->blocks[c++] = ctx->range[i].blocks[j];
333 j += (ctx->range[i].blocks[j]->nreg) - 1;
334 }
335 }
336 }
337 return 0;
338 }
339
340 int r600_context_init(struct r600_context *ctx)
341 {
342 int r;
343
344 /* add blocks */
345 r = r600_context_add_block(ctx, r600_context_reg_list,
346 Elements(r600_context_reg_list), PKT3_SET_CONTEXT_REG, R600_CONTEXT_REG_OFFSET);
347 if (r)
348 goto out_err;
349
350 r = r600_setup_block_table(ctx);
351 if (r)
352 goto out_err;
353
354 ctx->max_db = 4;
355 return 0;
356 out_err:
357 r600_context_fini(ctx);
358 return r;
359 }
360
361 void r600_need_cs_space(struct r600_context *ctx, unsigned num_dw,
362 boolean count_draw_in)
363 {
364 if (!ctx->ws->cs_memory_below_limit(ctx->rings.gfx.cs, ctx->vram, ctx->gtt)) {
365 ctx->gtt = 0;
366 ctx->vram = 0;
367 ctx->rings.gfx.flush(ctx, RADEON_FLUSH_ASYNC);
368 return;
369 }
370 /* all will be accounted once relocation are emited */
371 ctx->gtt = 0;
372 ctx->vram = 0;
373
374 /* The number of dwords we already used in the CS so far. */
375 num_dw += ctx->rings.gfx.cs->cdw;
376
377 if (count_draw_in) {
378 unsigned i;
379
380 /* The number of dwords all the dirty states would take. */
381 for (i = 0; i < R600_NUM_ATOMS; i++) {
382 if (ctx->atoms[i] && ctx->atoms[i]->dirty) {
383 num_dw += ctx->atoms[i]->num_dw;
384 #if R600_TRACE_CS
385 if (ctx->screen->trace_bo) {
386 num_dw += R600_TRACE_CS_DWORDS;
387 }
388 #endif
389 }
390 }
391
392 num_dw += ctx->pm4_dirty_cdwords;
393
394 /* The upper-bound of how much space a draw command would take. */
395 num_dw += R600_MAX_FLUSH_CS_DWORDS + R600_MAX_DRAW_CS_DWORDS;
396 #if R600_TRACE_CS
397 if (ctx->screen->trace_bo) {
398 num_dw += R600_TRACE_CS_DWORDS;
399 }
400 #endif
401 }
402
403 /* Count in queries_suspend. */
404 num_dw += ctx->num_cs_dw_nontimer_queries_suspend;
405
406 /* Count in streamout_end at the end of CS. */
407 if (ctx->streamout.begin_emitted) {
408 num_dw += ctx->streamout.num_dw_for_end;
409 }
410
411 /* Count in render_condition(NULL) at the end of CS. */
412 if (ctx->predicate_drawing) {
413 num_dw += 3;
414 }
415
416 /* SX_MISC */
417 if (ctx->chip_class <= R700) {
418 num_dw += 3;
419 }
420
421 /* Count in framebuffer cache flushes at the end of CS. */
422 num_dw += R600_MAX_FLUSH_CS_DWORDS;
423
424 /* The fence at the end of CS. */
425 num_dw += 10;
426
427 /* Flush if there's not enough space. */
428 if (num_dw > RADEON_MAX_CMDBUF_DWORDS) {
429 ctx->rings.gfx.flush(ctx, RADEON_FLUSH_ASYNC);
430 }
431 }
432
433 void r600_context_dirty_block(struct r600_context *ctx,
434 struct r600_block *block,
435 int dirty, int index)
436 {
437 if ((index + 1) > block->nreg_dirty)
438 block->nreg_dirty = index + 1;
439
440 if ((dirty != (block->status & R600_BLOCK_STATUS_DIRTY)) || !(block->status & R600_BLOCK_STATUS_ENABLED)) {
441 block->status |= R600_BLOCK_STATUS_DIRTY;
442 ctx->pm4_dirty_cdwords += block->pm4_ndwords;
443 if (!(block->status & R600_BLOCK_STATUS_ENABLED)) {
444 block->status |= R600_BLOCK_STATUS_ENABLED;
445 LIST_ADDTAIL(&block->enable_list, &ctx->enable_list);
446 }
447 LIST_ADDTAIL(&block->list,&ctx->dirty);
448
449 if (block->flags & REG_FLAG_FLUSH_CHANGE) {
450 ctx->flags |= R600_CONTEXT_WAIT_3D_IDLE;
451 }
452 }
453 }
454
455 /**
456 * If reg needs a reloc, this function will add it to its block's reloc list.
457 * @return true if reg needs a reloc, false otherwise
458 */
459 static bool r600_reg_set_block_reloc(struct r600_pipe_reg *reg)
460 {
461 unsigned reloc_id;
462
463 if (!reg->block->pm4_bo_index[reg->id]) {
464 return false;
465 }
466 /* find relocation */
467 reloc_id = reg->block->pm4_bo_index[reg->id];
468 pipe_resource_reference(
469 (struct pipe_resource**)&reg->block->reloc[reloc_id].bo,
470 &reg->bo->b.b);
471 reg->block->reloc[reloc_id].bo_usage = reg->bo_usage;
472 return true;
473 }
474
475 /**
476 * This function will emit all the registers in state directly to the command
477 * stream allowing you to bypass the r600_context dirty list.
478 *
479 * This is used for dispatching compute shaders to avoid mixing compute and
480 * 3D states in the context's dirty list.
481 *
482 * @param pkt_flags Should be either 0 or RADEON_CP_PACKET3_COMPUTE_MODE. This
483 * value will be passed on to r600_context_block_emit_dirty an or'd against
484 * the PKT3 headers.
485 */
486 void r600_context_pipe_state_emit(struct r600_context *ctx,
487 struct r600_pipe_state *state,
488 unsigned pkt_flags)
489 {
490 unsigned i;
491
492 /* Mark all blocks as dirty:
493 * Since two registers can be in the same block, we need to make sure
494 * we mark all the blocks dirty before we emit any of them. If we were
495 * to mark blocks dirty and emit them in the same loop, like this:
496 *
497 * foreach (reg in state->regs) {
498 * mark_dirty(reg->block)
499 * emit_block(reg->block)
500 * }
501 *
502 * Then if we have two registers in this state that are in the same
503 * block, we would end up emitting that block twice.
504 */
505 for (i = 0; i < state->nregs; i++) {
506 struct r600_pipe_reg *reg = &state->regs[i];
507 /* Mark all the registers in the block as dirty */
508 reg->block->nreg_dirty = reg->block->nreg;
509 reg->block->status |= R600_BLOCK_STATUS_DIRTY;
510 /* Update the reloc for this register if necessary. */
511 r600_reg_set_block_reloc(reg);
512 }
513
514 /* Emit the registers writes */
515 for (i = 0; i < state->nregs; i++) {
516 struct r600_pipe_reg *reg = &state->regs[i];
517 if (reg->block->status & R600_BLOCK_STATUS_DIRTY) {
518 r600_context_block_emit_dirty(ctx, reg->block, pkt_flags);
519 }
520 }
521 }
522
523 void r600_context_pipe_state_set(struct r600_context *ctx, struct r600_pipe_state *state)
524 {
525 struct r600_block *block;
526 int dirty;
527 for (int i = 0; i < state->nregs; i++) {
528 unsigned id;
529 struct r600_pipe_reg *reg = &state->regs[i];
530
531 block = reg->block;
532 id = reg->id;
533
534 dirty = block->status & R600_BLOCK_STATUS_DIRTY;
535
536 if (reg->value != block->reg[id]) {
537 block->reg[id] = reg->value;
538 dirty |= R600_BLOCK_STATUS_DIRTY;
539 }
540 if (block->flags & REG_FLAG_DIRTY_ALWAYS)
541 dirty |= R600_BLOCK_STATUS_DIRTY;
542 if (r600_reg_set_block_reloc(reg)) {
543 /* always force dirty for relocs for now */
544 dirty |= R600_BLOCK_STATUS_DIRTY;
545 }
546
547 if (dirty)
548 r600_context_dirty_block(ctx, block, dirty, id);
549 }
550 }
551
552 /**
553 * @param pkt_flags should be set to RADEON_CP_PACKET3_COMPUTE_MODE if this
554 * block will be used for compute shaders.
555 */
556 void r600_context_block_emit_dirty(struct r600_context *ctx, struct r600_block *block,
557 unsigned pkt_flags)
558 {
559 struct radeon_winsys_cs *cs = ctx->rings.gfx.cs;
560 int optional = block->nbo == 0 && !(block->flags & REG_FLAG_DIRTY_ALWAYS);
561 int cp_dwords = block->pm4_ndwords, start_dword = 0;
562 int new_dwords = 0;
563 int nbo = block->nbo;
564
565 if (block->nreg_dirty == 0 && optional) {
566 goto out;
567 }
568
569 if (nbo) {
570 for (int j = 0; j < block->nreg; j++) {
571 if (block->pm4_bo_index[j]) {
572 /* find relocation */
573 struct r600_block_reloc *reloc = &block->reloc[block->pm4_bo_index[j]];
574 if (reloc->bo) {
575 block->pm4[reloc->bo_pm4_index] =
576 r600_context_bo_reloc(ctx, &ctx->rings.gfx, reloc->bo, reloc->bo_usage);
577 } else {
578 block->pm4[reloc->bo_pm4_index] = 0;
579 }
580 nbo--;
581 if (nbo == 0)
582 break;
583
584 }
585 }
586 }
587
588 optional &= (block->nreg_dirty != block->nreg);
589 if (optional) {
590 new_dwords = block->nreg_dirty;
591 start_dword = cs->cdw;
592 cp_dwords = new_dwords + 2;
593 }
594 memcpy(&cs->buf[cs->cdw], block->pm4, cp_dwords * 4);
595
596 /* We are applying the pkt_flags after copying the register block to
597 * the the command stream, because it is possible this block will be
598 * emitted with a different pkt_flags, and we don't want to store the
599 * pkt_flags in the block.
600 */
601 cs->buf[cs->cdw] |= pkt_flags;
602 cs->cdw += cp_dwords;
603
604 if (optional) {
605 uint32_t newword;
606
607 newword = cs->buf[start_dword];
608 newword &= PKT_COUNT_C;
609 newword |= PKT_COUNT_S(new_dwords);
610 cs->buf[start_dword] = newword;
611 }
612 out:
613 block->status ^= R600_BLOCK_STATUS_DIRTY;
614 block->nreg_dirty = 0;
615 LIST_DELINIT(&block->list);
616 }
617
618 void r600_flush_emit(struct r600_context *rctx)
619 {
620 struct radeon_winsys_cs *cs = rctx->rings.gfx.cs;
621 unsigned cp_coher_cntl = 0;
622 unsigned wait_until = 0;
623 unsigned emit_flush = 0;
624
625 if (!rctx->flags) {
626 return;
627 }
628
629 if (rctx->flags & R600_CONTEXT_WAIT_3D_IDLE) {
630 wait_until |= S_008040_WAIT_3D_IDLE(1);
631 }
632 if (rctx->flags & R600_CONTEXT_WAIT_CP_DMA_IDLE) {
633 wait_until |= S_008040_WAIT_CP_DMA_IDLE(1);
634 }
635
636 if (wait_until) {
637 /* Use of WAIT_UNTIL is deprecated on Cayman+ */
638 if (rctx->family >= CHIP_CAYMAN) {
639 /* emit a PS partial flush on Cayman/TN */
640 rctx->flags |= R600_CONTEXT_PS_PARTIAL_FLUSH;
641 }
642 }
643
644 if (rctx->flags & R600_CONTEXT_PS_PARTIAL_FLUSH) {
645 cs->buf[cs->cdw++] = PKT3(PKT3_EVENT_WRITE, 0, 0);
646 cs->buf[cs->cdw++] = EVENT_TYPE(EVENT_TYPE_PS_PARTIAL_FLUSH) | EVENT_INDEX(4);
647 }
648
649 if (rctx->chip_class >= R700 &&
650 (rctx->flags & R600_CONTEXT_FLUSH_AND_INV_CB_META)) {
651 cs->buf[cs->cdw++] = PKT3(PKT3_EVENT_WRITE, 0, 0);
652 cs->buf[cs->cdw++] = EVENT_TYPE(EVENT_TYPE_FLUSH_AND_INV_CB_META) | EVENT_INDEX(0);
653 }
654
655 if (rctx->flags & R600_CONTEXT_FLUSH_AND_INV) {
656 cs->buf[cs->cdw++] = PKT3(PKT3_EVENT_WRITE, 0, 0);
657 cs->buf[cs->cdw++] = EVENT_TYPE(EVENT_TYPE_CACHE_FLUSH_AND_INV_EVENT) | EVENT_INDEX(0);
658 if (rctx->chip_class >= EVERGREEN) {
659 cp_coher_cntl = S_0085F0_CB0_DEST_BASE_ENA(1) |
660 S_0085F0_CB1_DEST_BASE_ENA(1) |
661 S_0085F0_CB2_DEST_BASE_ENA(1) |
662 S_0085F0_CB3_DEST_BASE_ENA(1) |
663 S_0085F0_CB4_DEST_BASE_ENA(1) |
664 S_0085F0_CB5_DEST_BASE_ENA(1) |
665 S_0085F0_CB6_DEST_BASE_ENA(1) |
666 S_0085F0_CB7_DEST_BASE_ENA(1) |
667 S_0085F0_CB8_DEST_BASE_ENA(1) |
668 S_0085F0_CB9_DEST_BASE_ENA(1) |
669 S_0085F0_CB10_DEST_BASE_ENA(1) |
670 S_0085F0_CB11_DEST_BASE_ENA(1) |
671 S_0085F0_DB_DEST_BASE_ENA(1) |
672 S_0085F0_TC_ACTION_ENA(1) |
673 S_0085F0_CB_ACTION_ENA(1) |
674 S_0085F0_DB_ACTION_ENA(1) |
675 S_0085F0_SH_ACTION_ENA(1) |
676 S_0085F0_SMX_ACTION_ENA(1) |
677 S_0085F0_FULL_CACHE_ENA(1);
678 } else {
679 cp_coher_cntl = S_0085F0_SMX_ACTION_ENA(1) |
680 S_0085F0_SH_ACTION_ENA(1) |
681 S_0085F0_VC_ACTION_ENA(1) |
682 S_0085F0_TC_ACTION_ENA(1) |
683 S_0085F0_FULL_CACHE_ENA(1);
684 }
685 emit_flush = 1;
686 }
687
688 if (rctx->flags & R600_CONTEXT_INVAL_READ_CACHES) {
689 cp_coher_cntl |= S_0085F0_VC_ACTION_ENA(1) |
690 S_0085F0_TC_ACTION_ENA(1) |
691 S_0085F0_FULL_CACHE_ENA(1);
692 emit_flush = 1;
693 }
694
695 if (rctx->flags & R600_CONTEXT_STREAMOUT_FLUSH) {
696 cp_coher_cntl |= S_0085F0_SO0_DEST_BASE_ENA(1) |
697 S_0085F0_SO1_DEST_BASE_ENA(1) |
698 S_0085F0_SO2_DEST_BASE_ENA(1) |
699 S_0085F0_SO3_DEST_BASE_ENA(1) |
700 S_0085F0_SMX_ACTION_ENA(1);
701 emit_flush = 1;
702 }
703
704 if (emit_flush) {
705 cs->buf[cs->cdw++] = PKT3(PKT3_SURFACE_SYNC, 3, 0);
706 cs->buf[cs->cdw++] = cp_coher_cntl; /* CP_COHER_CNTL */
707 cs->buf[cs->cdw++] = 0xffffffff; /* CP_COHER_SIZE */
708 cs->buf[cs->cdw++] = 0; /* CP_COHER_BASE */
709 cs->buf[cs->cdw++] = 0x0000000A; /* POLL_INTERVAL */
710 }
711
712 if (wait_until) {
713 /* Use of WAIT_UNTIL is deprecated on Cayman+ */
714 if (rctx->family < CHIP_CAYMAN) {
715 /* wait for things to settle */
716 r600_write_config_reg(cs, R_008040_WAIT_UNTIL, wait_until);
717 }
718 }
719
720 /* everything is properly flushed */
721 rctx->flags = 0;
722 }
723
724 void r600_context_flush(struct r600_context *ctx, unsigned flags)
725 {
726 struct radeon_winsys_cs *cs = ctx->rings.gfx.cs;
727
728 if (cs->cdw == ctx->start_cs_cmd.num_dw)
729 return;
730
731 ctx->nontimer_queries_suspended = false;
732 ctx->streamout.suspended = false;
733
734 /* suspend queries */
735 if (ctx->num_cs_dw_nontimer_queries_suspend) {
736 r600_suspend_nontimer_queries(ctx);
737 ctx->nontimer_queries_suspended = true;
738 }
739
740 if (ctx->streamout.begin_emitted) {
741 r600_emit_streamout_end(ctx);
742 ctx->streamout.suspended = true;
743 }
744
745 /* flush is needed to avoid lockups on some chips with user fences
746 * this will also flush the framebuffer cache
747 */
748 ctx->flags |= R600_CONTEXT_FLUSH_AND_INV |
749 R600_CONTEXT_FLUSH_AND_INV_CB_META |
750 R600_CONTEXT_WAIT_3D_IDLE |
751 R600_CONTEXT_WAIT_CP_DMA_IDLE;
752
753 r600_flush_emit(ctx);
754
755 /* old kernels and userspace don't set SX_MISC, so we must reset it to 0 here */
756 if (ctx->chip_class <= R700) {
757 r600_write_context_reg(cs, R_028350_SX_MISC, 0);
758 }
759
760 /* force to keep tiling flags */
761 if (ctx->keep_tiling_flags) {
762 flags |= RADEON_FLUSH_KEEP_TILING_FLAGS;
763 }
764
765 /* Flush the CS. */
766 #if R600_TRACE_CS
767 if (ctx->screen->trace_bo) {
768 struct r600_screen *rscreen = ctx->screen;
769 unsigned i;
770
771 for (i = 0; i < cs->cdw; i++) {
772 fprintf(stderr, "[%4d] [%5d] 0x%08x\n", rscreen->cs_count, i, cs->buf[i]);
773 }
774 rscreen->cs_count++;
775 }
776 #endif
777 ctx->ws->cs_flush(ctx->rings.gfx.cs, flags);
778 #if R600_TRACE_CS
779 if (ctx->screen->trace_bo) {
780 struct r600_screen *rscreen = ctx->screen;
781 unsigned i;
782
783 for (i = 0; i < 10; i++) {
784 usleep(5);
785 if (!ctx->ws->buffer_is_busy(rscreen->trace_bo->buf, RADEON_USAGE_READWRITE)) {
786 break;
787 }
788 }
789 if (i == 10) {
790 fprintf(stderr, "timeout on cs lockup likely happen at cs %d dw %d\n",
791 rscreen->trace_ptr[1], rscreen->trace_ptr[0]);
792 } else {
793 fprintf(stderr, "cs %d executed in %dms\n", rscreen->trace_ptr[1], i * 5);
794 }
795 }
796 #endif
797 }
798
799 void r600_begin_new_cs(struct r600_context *ctx)
800 {
801 struct r600_block *enable_block = NULL;
802 unsigned shader;
803
804 ctx->pm4_dirty_cdwords = 0;
805 ctx->flags = 0;
806 ctx->gtt = 0;
807 ctx->vram = 0;
808
809 /* Begin a new CS. */
810 r600_emit_command_buffer(ctx->rings.gfx.cs, &ctx->start_cs_cmd);
811
812 /* Re-emit states. */
813 ctx->alphatest_state.atom.dirty = true;
814 ctx->blend_color.atom.dirty = true;
815 ctx->cb_misc_state.atom.dirty = true;
816 ctx->clip_misc_state.atom.dirty = true;
817 ctx->clip_state.atom.dirty = true;
818 ctx->db_misc_state.atom.dirty = true;
819 ctx->db_state.atom.dirty = true;
820 ctx->framebuffer.atom.dirty = true;
821 ctx->poly_offset_state.atom.dirty = true;
822 ctx->vgt_state.atom.dirty = true;
823 ctx->vgt2_state.atom.dirty = true;
824 ctx->sample_mask.atom.dirty = true;
825 ctx->scissor.atom.dirty = true;
826 ctx->config_state.atom.dirty = true;
827 ctx->stencil_ref.atom.dirty = true;
828 ctx->vertex_fetch_shader.atom.dirty = true;
829 ctx->viewport.atom.dirty = true;
830
831 if (ctx->blend_state.cso)
832 ctx->blend_state.atom.dirty = true;
833 if (ctx->dsa_state.cso)
834 ctx->dsa_state.atom.dirty = true;
835 if (ctx->rasterizer_state.cso)
836 ctx->rasterizer_state.atom.dirty = true;
837
838 if (ctx->chip_class <= R700) {
839 ctx->seamless_cube_map.atom.dirty = true;
840 }
841
842 ctx->vertex_buffer_state.dirty_mask = ctx->vertex_buffer_state.enabled_mask;
843 r600_vertex_buffers_dirty(ctx);
844
845 /* Re-emit shader resources. */
846 for (shader = 0; shader < PIPE_SHADER_TYPES; shader++) {
847 struct r600_constbuf_state *constbuf = &ctx->constbuf_state[shader];
848 struct r600_textures_info *samplers = &ctx->samplers[shader];
849
850 constbuf->dirty_mask = constbuf->enabled_mask;
851 samplers->views.dirty_mask = samplers->views.enabled_mask;
852 samplers->states.dirty_mask = samplers->states.enabled_mask;
853
854 r600_constant_buffers_dirty(ctx, constbuf);
855 r600_sampler_views_dirty(ctx, &samplers->views);
856 r600_sampler_states_dirty(ctx, &samplers->states);
857 }
858
859 if (ctx->streamout.suspended) {
860 ctx->streamout.append_bitmask = ctx->streamout.enabled_mask;
861 r600_streamout_buffers_dirty(ctx);
862 }
863
864 /* resume queries */
865 if (ctx->nontimer_queries_suspended) {
866 r600_resume_nontimer_queries(ctx);
867 }
868
869 /* set all valid group as dirty so they get reemited on
870 * next draw command
871 */
872 LIST_FOR_EACH_ENTRY(enable_block, &ctx->enable_list, enable_list) {
873 if(!(enable_block->status & R600_BLOCK_STATUS_DIRTY)) {
874 LIST_ADDTAIL(&enable_block->list,&ctx->dirty);
875 enable_block->status |= R600_BLOCK_STATUS_DIRTY;
876 }
877 ctx->pm4_dirty_cdwords += enable_block->pm4_ndwords;
878 enable_block->nreg_dirty = enable_block->nreg;
879 }
880
881 /* Re-emit the draw state. */
882 ctx->last_primitive_type = -1;
883 ctx->last_start_instance = -1;
884 }
885
886 void r600_context_emit_fence(struct r600_context *ctx, struct r600_resource *fence_bo, unsigned offset, unsigned value)
887 {
888 struct radeon_winsys_cs *cs = ctx->rings.gfx.cs;
889 uint64_t va;
890
891 r600_need_cs_space(ctx, 10, FALSE);
892
893 va = r600_resource_va(&ctx->screen->screen, (void*)fence_bo);
894 va = va + (offset << 2);
895
896 /* Use of WAIT_UNTIL is deprecated on Cayman+ */
897 if (ctx->family >= CHIP_CAYMAN) {
898 cs->buf[cs->cdw++] = PKT3(PKT3_EVENT_WRITE, 0, 0);
899 cs->buf[cs->cdw++] = EVENT_TYPE(EVENT_TYPE_PS_PARTIAL_FLUSH) | EVENT_INDEX(4);
900 } else {
901 r600_write_config_reg(cs, R_008040_WAIT_UNTIL, S_008040_WAIT_3D_IDLE(1));
902 }
903
904 cs->buf[cs->cdw++] = PKT3(PKT3_EVENT_WRITE_EOP, 4, 0);
905 cs->buf[cs->cdw++] = EVENT_TYPE(EVENT_TYPE_CACHE_FLUSH_AND_INV_TS_EVENT) | EVENT_INDEX(5);
906 cs->buf[cs->cdw++] = va & 0xFFFFFFFFUL; /* ADDRESS_LO */
907 /* DATA_SEL | INT_EN | ADDRESS_HI */
908 cs->buf[cs->cdw++] = (1 << 29) | (0 << 24) | ((va >> 32UL) & 0xFF);
909 cs->buf[cs->cdw++] = value; /* DATA_LO */
910 cs->buf[cs->cdw++] = 0; /* DATA_HI */
911 cs->buf[cs->cdw++] = PKT3(PKT3_NOP, 0, 0);
912 cs->buf[cs->cdw++] = r600_context_bo_reloc(ctx, &ctx->rings.gfx, fence_bo, RADEON_USAGE_WRITE);
913 }
914
915 static void r600_flush_vgt_streamout(struct r600_context *ctx)
916 {
917 struct radeon_winsys_cs *cs = ctx->rings.gfx.cs;
918
919 r600_write_config_reg(cs, R_008490_CP_STRMOUT_CNTL, 0);
920
921 cs->buf[cs->cdw++] = PKT3(PKT3_EVENT_WRITE, 0, 0);
922 cs->buf[cs->cdw++] = EVENT_TYPE(EVENT_TYPE_SO_VGTSTREAMOUT_FLUSH) | EVENT_INDEX(0);
923
924 cs->buf[cs->cdw++] = PKT3(PKT3_WAIT_REG_MEM, 5, 0);
925 cs->buf[cs->cdw++] = WAIT_REG_MEM_EQUAL; /* wait until the register is equal to the reference value */
926 cs->buf[cs->cdw++] = R_008490_CP_STRMOUT_CNTL >> 2; /* register */
927 cs->buf[cs->cdw++] = 0;
928 cs->buf[cs->cdw++] = S_008490_OFFSET_UPDATE_DONE(1); /* reference value */
929 cs->buf[cs->cdw++] = S_008490_OFFSET_UPDATE_DONE(1); /* mask */
930 cs->buf[cs->cdw++] = 4; /* poll interval */
931 }
932
933 static void r600_set_streamout_enable(struct r600_context *ctx, unsigned buffer_enable_bit)
934 {
935 struct radeon_winsys_cs *cs = ctx->rings.gfx.cs;
936
937 if (buffer_enable_bit) {
938 r600_write_context_reg(cs, R_028AB0_VGT_STRMOUT_EN, S_028AB0_STREAMOUT(1));
939 r600_write_context_reg(cs, R_028B20_VGT_STRMOUT_BUFFER_EN, buffer_enable_bit);
940 } else {
941 r600_write_context_reg(cs, R_028AB0_VGT_STRMOUT_EN, S_028AB0_STREAMOUT(0));
942 }
943 }
944
945 void r600_emit_streamout_begin(struct r600_context *ctx, struct r600_atom *atom)
946 {
947 struct radeon_winsys_cs *cs = ctx->rings.gfx.cs;
948 struct r600_so_target **t = ctx->streamout.targets;
949 unsigned *stride_in_dw = ctx->vs_shader->so.stride;
950 unsigned i, update_flags = 0;
951 uint64_t va;
952
953 if (ctx->chip_class >= EVERGREEN) {
954 evergreen_flush_vgt_streamout(ctx);
955 evergreen_set_streamout_enable(ctx, ctx->streamout.enabled_mask);
956 } else {
957 r600_flush_vgt_streamout(ctx);
958 r600_set_streamout_enable(ctx, ctx->streamout.enabled_mask);
959 }
960
961 for (i = 0; i < ctx->streamout.num_targets; i++) {
962 if (t[i]) {
963 t[i]->stride_in_dw = stride_in_dw[i];
964 t[i]->so_index = i;
965 va = r600_resource_va(&ctx->screen->screen,
966 (void*)t[i]->b.buffer);
967
968 update_flags |= SURFACE_BASE_UPDATE_STRMOUT(i);
969
970 r600_write_context_reg_seq(cs, R_028AD0_VGT_STRMOUT_BUFFER_SIZE_0 + 16*i, 3);
971 r600_write_value(cs, (t[i]->b.buffer_offset +
972 t[i]->b.buffer_size) >> 2); /* BUFFER_SIZE (in DW) */
973 r600_write_value(cs, stride_in_dw[i]); /* VTX_STRIDE (in DW) */
974 r600_write_value(cs, va >> 8); /* BUFFER_BASE */
975
976 cs->buf[cs->cdw++] = PKT3(PKT3_NOP, 0, 0);
977 cs->buf[cs->cdw++] =
978 r600_context_bo_reloc(ctx, &ctx->rings.gfx, r600_resource(t[i]->b.buffer),
979 RADEON_USAGE_WRITE);
980
981 /* R7xx requires this packet after updating BUFFER_BASE.
982 * Without this, R7xx locks up. */
983 if (ctx->family >= CHIP_RS780 && ctx->family <= CHIP_RV740) {
984 cs->buf[cs->cdw++] = PKT3(PKT3_STRMOUT_BASE_UPDATE, 1, 0);
985 cs->buf[cs->cdw++] = i;
986 cs->buf[cs->cdw++] = va >> 8;
987
988 cs->buf[cs->cdw++] = PKT3(PKT3_NOP, 0, 0);
989 cs->buf[cs->cdw++] =
990 r600_context_bo_reloc(ctx, &ctx->rings.gfx, r600_resource(t[i]->b.buffer),
991 RADEON_USAGE_WRITE);
992 }
993
994 if (ctx->streamout.append_bitmask & (1 << i)) {
995 va = r600_resource_va(&ctx->screen->screen,
996 (void*)t[i]->buf_filled_size) + t[i]->buf_filled_size_offset;
997 /* Append. */
998 cs->buf[cs->cdw++] = PKT3(PKT3_STRMOUT_BUFFER_UPDATE, 4, 0);
999 cs->buf[cs->cdw++] = STRMOUT_SELECT_BUFFER(i) |
1000 STRMOUT_OFFSET_SOURCE(STRMOUT_OFFSET_FROM_MEM); /* control */
1001 cs->buf[cs->cdw++] = 0; /* unused */
1002 cs->buf[cs->cdw++] = 0; /* unused */
1003 cs->buf[cs->cdw++] = va & 0xFFFFFFFFUL; /* src address lo */
1004 cs->buf[cs->cdw++] = (va >> 32UL) & 0xFFUL; /* src address hi */
1005
1006 cs->buf[cs->cdw++] = PKT3(PKT3_NOP, 0, 0);
1007 cs->buf[cs->cdw++] =
1008 r600_context_bo_reloc(ctx, &ctx->rings.gfx, t[i]->buf_filled_size,
1009 RADEON_USAGE_READ);
1010 } else {
1011 /* Start from the beginning. */
1012 cs->buf[cs->cdw++] = PKT3(PKT3_STRMOUT_BUFFER_UPDATE, 4, 0);
1013 cs->buf[cs->cdw++] = STRMOUT_SELECT_BUFFER(i) |
1014 STRMOUT_OFFSET_SOURCE(STRMOUT_OFFSET_FROM_PACKET); /* control */
1015 cs->buf[cs->cdw++] = 0; /* unused */
1016 cs->buf[cs->cdw++] = 0; /* unused */
1017 cs->buf[cs->cdw++] = t[i]->b.buffer_offset >> 2; /* buffer offset in DW */
1018 cs->buf[cs->cdw++] = 0; /* unused */
1019 }
1020 }
1021 }
1022
1023 if (ctx->family > CHIP_R600 && ctx->family < CHIP_RV770) {
1024 cs->buf[cs->cdw++] = PKT3(PKT3_SURFACE_BASE_UPDATE, 0, 0);
1025 cs->buf[cs->cdw++] = update_flags;
1026 }
1027 ctx->streamout.begin_emitted = true;
1028 }
1029
1030 void r600_emit_streamout_end(struct r600_context *ctx)
1031 {
1032 struct radeon_winsys_cs *cs = ctx->rings.gfx.cs;
1033 struct r600_so_target **t = ctx->streamout.targets;
1034 unsigned i;
1035 uint64_t va;
1036
1037 if (ctx->chip_class >= EVERGREEN) {
1038 evergreen_flush_vgt_streamout(ctx);
1039 } else {
1040 r600_flush_vgt_streamout(ctx);
1041 }
1042
1043 for (i = 0; i < ctx->streamout.num_targets; i++) {
1044 if (t[i]) {
1045 va = r600_resource_va(&ctx->screen->screen,
1046 (void*)t[i]->buf_filled_size) + t[i]->buf_filled_size_offset;
1047 cs->buf[cs->cdw++] = PKT3(PKT3_STRMOUT_BUFFER_UPDATE, 4, 0);
1048 cs->buf[cs->cdw++] = STRMOUT_SELECT_BUFFER(i) |
1049 STRMOUT_OFFSET_SOURCE(STRMOUT_OFFSET_NONE) |
1050 STRMOUT_STORE_BUFFER_FILLED_SIZE; /* control */
1051 cs->buf[cs->cdw++] = va & 0xFFFFFFFFUL; /* dst address lo */
1052 cs->buf[cs->cdw++] = (va >> 32UL) & 0xFFUL; /* dst address hi */
1053 cs->buf[cs->cdw++] = 0; /* unused */
1054 cs->buf[cs->cdw++] = 0; /* unused */
1055
1056 cs->buf[cs->cdw++] = PKT3(PKT3_NOP, 0, 0);
1057 cs->buf[cs->cdw++] =
1058 r600_context_bo_reloc(ctx, &ctx->rings.gfx, t[i]->buf_filled_size,
1059 RADEON_USAGE_WRITE);
1060 }
1061 }
1062
1063 if (ctx->chip_class >= EVERGREEN) {
1064 ctx->flags |= R600_CONTEXT_STREAMOUT_FLUSH;
1065 evergreen_set_streamout_enable(ctx, 0);
1066 } else {
1067 if (ctx->chip_class >= R700) {
1068 ctx->flags |= R600_CONTEXT_STREAMOUT_FLUSH;
1069 }
1070 r600_set_streamout_enable(ctx, 0);
1071 }
1072 ctx->flags |= R600_CONTEXT_WAIT_3D_IDLE | R600_CONTEXT_FLUSH_AND_INV;
1073 ctx->streamout.begin_emitted = false;
1074 }
1075
1076 /* The max number of bytes to copy per packet. */
1077 #define CP_DMA_MAX_BYTE_COUNT ((1 << 21) - 8)
1078
1079 void r600_cp_dma_copy_buffer(struct r600_context *rctx,
1080 struct pipe_resource *dst, uint64_t dst_offset,
1081 struct pipe_resource *src, uint64_t src_offset,
1082 unsigned size)
1083 {
1084 struct radeon_winsys_cs *cs = rctx->rings.gfx.cs;
1085
1086 assert(size);
1087 assert(rctx->chip_class != R600);
1088
1089 /* CP DMA doesn't work on R600 (flushing seems to be unreliable). */
1090 if (rctx->chip_class == R600) {
1091 return;
1092 }
1093
1094 dst_offset += r600_resource_va(&rctx->screen->screen, dst);
1095 src_offset += r600_resource_va(&rctx->screen->screen, src);
1096
1097 /* We flush the caches, because we might read from or write
1098 * to resources which are bound right now. */
1099 rctx->flags |= R600_CONTEXT_INVAL_READ_CACHES |
1100 R600_CONTEXT_FLUSH_AND_INV |
1101 R600_CONTEXT_FLUSH_AND_INV_CB_META |
1102 R600_CONTEXT_STREAMOUT_FLUSH |
1103 R600_CONTEXT_WAIT_3D_IDLE;
1104
1105 /* There are differences between R700 and EG in CP DMA,
1106 * but we only use the common bits here. */
1107 while (size) {
1108 unsigned sync = 0;
1109 unsigned byte_count = MIN2(size, CP_DMA_MAX_BYTE_COUNT);
1110 unsigned src_reloc, dst_reloc;
1111
1112 r600_need_cs_space(rctx, 10 + (rctx->flags ? R600_MAX_FLUSH_CS_DWORDS : 0), FALSE);
1113
1114 /* Flush the caches for the first copy only. */
1115 if (rctx->flags) {
1116 r600_flush_emit(rctx);
1117 }
1118
1119 /* Do the synchronization after the last copy, so that all data is written to memory. */
1120 if (size == byte_count) {
1121 sync = PKT3_CP_DMA_CP_SYNC;
1122 }
1123
1124 /* This must be done after r600_need_cs_space. */
1125 src_reloc = r600_context_bo_reloc(rctx, &rctx->rings.gfx, (struct r600_resource*)src, RADEON_USAGE_READ);
1126 dst_reloc = r600_context_bo_reloc(rctx, &rctx->rings.gfx, (struct r600_resource*)dst, RADEON_USAGE_WRITE);
1127
1128 r600_write_value(cs, PKT3(PKT3_CP_DMA, 4, 0));
1129 r600_write_value(cs, src_offset); /* SRC_ADDR_LO [31:0] */
1130 r600_write_value(cs, sync | ((src_offset >> 32) & 0xff)); /* CP_SYNC [31] | SRC_ADDR_HI [7:0] */
1131 r600_write_value(cs, dst_offset); /* DST_ADDR_LO [31:0] */
1132 r600_write_value(cs, (dst_offset >> 32) & 0xff); /* DST_ADDR_HI [7:0] */
1133 r600_write_value(cs, byte_count); /* COMMAND [29:22] | BYTE_COUNT [20:0] */
1134
1135 r600_write_value(cs, PKT3(PKT3_NOP, 0, 0));
1136 r600_write_value(cs, src_reloc);
1137 r600_write_value(cs, PKT3(PKT3_NOP, 0, 0));
1138 r600_write_value(cs, dst_reloc);
1139
1140 size -= byte_count;
1141 src_offset += byte_count;
1142 dst_offset += byte_count;
1143 }
1144
1145 /* Invalidate the read caches. */
1146 rctx->flags |= R600_CONTEXT_INVAL_READ_CACHES;
1147 }
1148
1149 void r600_need_dma_space(struct r600_context *ctx, unsigned num_dw)
1150 {
1151 /* The number of dwords we already used in the DMA so far. */
1152 num_dw += ctx->rings.dma.cs->cdw;
1153 /* Flush if there's not enough space. */
1154 if (num_dw > RADEON_MAX_CMDBUF_DWORDS) {
1155 ctx->rings.dma.flush(ctx, RADEON_FLUSH_ASYNC);
1156 }
1157 }
1158
1159 void r600_dma_copy(struct r600_context *rctx,
1160 struct pipe_resource *dst,
1161 struct pipe_resource *src,
1162 uint64_t dst_offset,
1163 uint64_t src_offset,
1164 uint64_t size)
1165 {
1166 struct radeon_winsys_cs *cs = rctx->rings.dma.cs;
1167 unsigned i, ncopy, csize, shift;
1168 struct r600_resource *rdst = (struct r600_resource*)dst;
1169 struct r600_resource *rsrc = (struct r600_resource*)src;
1170
1171 /* make sure that the dma ring is only one active */
1172 rctx->rings.gfx.flush(rctx, RADEON_FLUSH_ASYNC);
1173
1174 size >>= 2;
1175 shift = 2;
1176 ncopy = (size / 0xffff) + !!(size % 0xffff);
1177
1178 r600_need_dma_space(rctx, ncopy * 5);
1179 for (i = 0; i < ncopy; i++) {
1180 csize = size < 0xffff ? size : 0xffff;
1181 /* emit reloc before writting cs so that cs is always in consistent state */
1182 r600_context_bo_reloc(rctx, &rctx->rings.dma, rsrc, RADEON_USAGE_READ);
1183 r600_context_bo_reloc(rctx, &rctx->rings.dma, rdst, RADEON_USAGE_WRITE);
1184 cs->buf[cs->cdw++] = DMA_PACKET(DMA_PACKET_COPY, 0, 0, csize);
1185 cs->buf[cs->cdw++] = dst_offset & 0xfffffffc;
1186 cs->buf[cs->cdw++] = src_offset & 0xfffffffc;
1187 cs->buf[cs->cdw++] = (dst_offset >> 32UL) & 0xff;
1188 cs->buf[cs->cdw++] = (src_offset >> 32UL) & 0xff;
1189 dst_offset += csize << shift;
1190 src_offset += csize << shift;
1191 size -= csize;
1192 }
1193 }