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_pipe.h"
27 #include "r600d.h"
28 #include "util/u_memory.h"
29 #include <errno.h>
30 #include <unistd.h>
31
32
r600_need_cs_space(struct r600_context * ctx,unsigned num_dw,boolean count_draw_in,unsigned num_atomics)33 void r600_need_cs_space(struct r600_context *ctx, unsigned num_dw,
34 boolean count_draw_in, unsigned num_atomics)
35 {
36 /* Flush the DMA IB if it's not empty. */
37 if (radeon_emitted(ctx->b.dma.cs, 0))
38 ctx->b.dma.flush(ctx, PIPE_FLUSH_ASYNC, NULL);
39
40 if (!radeon_cs_memory_below_limit(ctx->b.screen, ctx->b.gfx.cs,
41 ctx->b.vram, ctx->b.gtt)) {
42 ctx->b.gtt = 0;
43 ctx->b.vram = 0;
44 ctx->b.gfx.flush(ctx, PIPE_FLUSH_ASYNC, NULL);
45 return;
46 }
47 /* all will be accounted once relocation are emited */
48 ctx->b.gtt = 0;
49 ctx->b.vram = 0;
50
51 /* Check available space in CS. */
52 if (count_draw_in) {
53 uint64_t mask;
54
55 /* The number of dwords all the dirty states would take. */
56 mask = ctx->dirty_atoms;
57 while (mask != 0)
58 num_dw += ctx->atoms[u_bit_scan64(&mask)]->num_dw;
59
60 /* The upper-bound of how much space a draw command would take. */
61 num_dw += R600_MAX_FLUSH_CS_DWORDS + R600_MAX_DRAW_CS_DWORDS;
62 }
63
64 /* add atomic counters, 8 pre + 8 post per counter + 16 post if any counters */
65 num_dw += (num_atomics * 16) + (num_atomics ? 16 : 0);
66
67 /* Count in r600_suspend_queries. */
68 num_dw += ctx->b.num_cs_dw_queries_suspend;
69
70 /* Count in streamout_end at the end of CS. */
71 if (ctx->b.streamout.begin_emitted) {
72 num_dw += ctx->b.streamout.num_dw_for_end;
73 }
74
75 /* SX_MISC */
76 if (ctx->b.chip_class == R600) {
77 num_dw += 3;
78 }
79
80 /* Count in framebuffer cache flushes at the end of CS. */
81 num_dw += R600_MAX_FLUSH_CS_DWORDS;
82
83 /* The fence at the end of CS. */
84 num_dw += 10;
85
86 /* Flush if there's not enough space. */
87 if (!ctx->b.ws->cs_check_space(ctx->b.gfx.cs, num_dw, false)) {
88 ctx->b.gfx.flush(ctx, PIPE_FLUSH_ASYNC, NULL);
89 }
90 }
91
r600_flush_emit(struct r600_context * rctx)92 void r600_flush_emit(struct r600_context *rctx)
93 {
94 struct radeon_cmdbuf *cs = rctx->b.gfx.cs;
95 unsigned cp_coher_cntl = 0;
96 unsigned wait_until = 0;
97
98 if (!rctx->b.flags) {
99 return;
100 }
101
102 /* Ensure coherency between streamout and shaders. */
103 if (rctx->b.flags & R600_CONTEXT_STREAMOUT_FLUSH)
104 rctx->b.flags |= r600_get_flush_flags(R600_COHERENCY_SHADER);
105
106 if (rctx->b.flags & R600_CONTEXT_WAIT_3D_IDLE) {
107 wait_until |= S_008040_WAIT_3D_IDLE(1);
108 }
109 if (rctx->b.flags & R600_CONTEXT_WAIT_CP_DMA_IDLE) {
110 wait_until |= S_008040_WAIT_CP_DMA_IDLE(1);
111 }
112
113 if (wait_until) {
114 /* Use of WAIT_UNTIL is deprecated on Cayman+ */
115 if (rctx->b.family >= CHIP_CAYMAN) {
116 /* emit a PS partial flush on Cayman/TN */
117 rctx->b.flags |= R600_CONTEXT_PS_PARTIAL_FLUSH;
118 }
119 }
120
121 /* Wait packets must be executed first, because SURFACE_SYNC doesn't
122 * wait for shaders if it's not flushing CB or DB.
123 */
124 if (rctx->b.flags & R600_CONTEXT_PS_PARTIAL_FLUSH) {
125 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
126 radeon_emit(cs, EVENT_TYPE(EVENT_TYPE_PS_PARTIAL_FLUSH) | EVENT_INDEX(4));
127 }
128
129 if (rctx->b.flags & R600_CONTEXT_CS_PARTIAL_FLUSH) {
130 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
131 radeon_emit(cs, EVENT_TYPE(EVENT_TYPE_CS_PARTIAL_FLUSH) | EVENT_INDEX(4));
132 }
133
134 if (wait_until) {
135 /* Use of WAIT_UNTIL is deprecated on Cayman+ */
136 if (rctx->b.family < CHIP_CAYMAN) {
137 /* wait for things to settle */
138 radeon_set_config_reg(cs, R_008040_WAIT_UNTIL, wait_until);
139 }
140 }
141
142 if (rctx->b.chip_class >= R700 &&
143 (rctx->b.flags & R600_CONTEXT_FLUSH_AND_INV_CB_META)) {
144 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
145 radeon_emit(cs, EVENT_TYPE(EVENT_TYPE_FLUSH_AND_INV_CB_META) | EVENT_INDEX(0));
146 }
147
148 if (rctx->b.chip_class >= R700 &&
149 (rctx->b.flags & R600_CONTEXT_FLUSH_AND_INV_DB_META)) {
150 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
151 radeon_emit(cs, EVENT_TYPE(EVENT_TYPE_FLUSH_AND_INV_DB_META) | EVENT_INDEX(0));
152
153 /* Set FULL_CACHE_ENA for DB META flushes on r7xx and later.
154 *
155 * This hack predates use of FLUSH_AND_INV_DB_META, so it's
156 * unclear whether it's still needed or even whether it has
157 * any effect.
158 */
159 cp_coher_cntl |= S_0085F0_FULL_CACHE_ENA(1);
160 }
161
162 if (rctx->b.flags & R600_CONTEXT_FLUSH_AND_INV ||
163 (rctx->b.chip_class == R600 && rctx->b.flags & R600_CONTEXT_STREAMOUT_FLUSH)) {
164 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
165 radeon_emit(cs, EVENT_TYPE(EVENT_TYPE_CACHE_FLUSH_AND_INV_EVENT) | EVENT_INDEX(0));
166 }
167
168 if (rctx->b.flags & R600_CONTEXT_INV_CONST_CACHE) {
169 /* Direct constant addressing uses the shader cache.
170 * Indirect contant addressing uses the vertex cache. */
171 cp_coher_cntl |= S_0085F0_SH_ACTION_ENA(1) |
172 (rctx->has_vertex_cache ? S_0085F0_VC_ACTION_ENA(1)
173 : S_0085F0_TC_ACTION_ENA(1));
174 }
175 if (rctx->b.flags & R600_CONTEXT_INV_VERTEX_CACHE) {
176 cp_coher_cntl |= rctx->has_vertex_cache ? S_0085F0_VC_ACTION_ENA(1)
177 : S_0085F0_TC_ACTION_ENA(1);
178 }
179 if (rctx->b.flags & R600_CONTEXT_INV_TEX_CACHE) {
180 /* Textures use the texture cache.
181 * Texture buffer objects use the vertex cache. */
182 cp_coher_cntl |= S_0085F0_TC_ACTION_ENA(1) |
183 (rctx->has_vertex_cache ? S_0085F0_VC_ACTION_ENA(1) : 0);
184 }
185
186 /* Don't use the DB CP COHER logic on r6xx.
187 * There are hw bugs.
188 */
189 if (rctx->b.chip_class >= R700 &&
190 (rctx->b.flags & R600_CONTEXT_FLUSH_AND_INV_DB)) {
191 cp_coher_cntl |= S_0085F0_DB_ACTION_ENA(1) |
192 S_0085F0_DB_DEST_BASE_ENA(1) |
193 S_0085F0_SMX_ACTION_ENA(1);
194 }
195
196 /* Don't use the CB CP COHER logic on r6xx.
197 * There are hw bugs.
198 */
199 if (rctx->b.chip_class >= R700 &&
200 (rctx->b.flags & R600_CONTEXT_FLUSH_AND_INV_CB)) {
201 cp_coher_cntl |= S_0085F0_CB_ACTION_ENA(1) |
202 S_0085F0_CB0_DEST_BASE_ENA(1) |
203 S_0085F0_CB1_DEST_BASE_ENA(1) |
204 S_0085F0_CB2_DEST_BASE_ENA(1) |
205 S_0085F0_CB3_DEST_BASE_ENA(1) |
206 S_0085F0_CB4_DEST_BASE_ENA(1) |
207 S_0085F0_CB5_DEST_BASE_ENA(1) |
208 S_0085F0_CB6_DEST_BASE_ENA(1) |
209 S_0085F0_CB7_DEST_BASE_ENA(1) |
210 S_0085F0_SMX_ACTION_ENA(1);
211 if (rctx->b.chip_class >= EVERGREEN)
212 cp_coher_cntl |= S_0085F0_CB8_DEST_BASE_ENA(1) |
213 S_0085F0_CB9_DEST_BASE_ENA(1) |
214 S_0085F0_CB10_DEST_BASE_ENA(1) |
215 S_0085F0_CB11_DEST_BASE_ENA(1);
216 }
217
218 if (rctx->b.chip_class >= R700 &&
219 rctx->b.flags & R600_CONTEXT_STREAMOUT_FLUSH) {
220 cp_coher_cntl |= S_0085F0_SO0_DEST_BASE_ENA(1) |
221 S_0085F0_SO1_DEST_BASE_ENA(1) |
222 S_0085F0_SO2_DEST_BASE_ENA(1) |
223 S_0085F0_SO3_DEST_BASE_ENA(1) |
224 S_0085F0_SMX_ACTION_ENA(1);
225 }
226
227 /* Workaround for buggy flushing on some R6xx chipsets. */
228 if ((rctx->b.flags & (R600_CONTEXT_FLUSH_AND_INV |
229 R600_CONTEXT_STREAMOUT_FLUSH)) &&
230 (rctx->b.family == CHIP_RV670 ||
231 rctx->b.family == CHIP_RS780 ||
232 rctx->b.family == CHIP_RS880)) {
233 cp_coher_cntl |= S_0085F0_CB1_DEST_BASE_ENA(1) |
234 S_0085F0_DEST_BASE_0_ENA(1);
235 }
236
237 if (cp_coher_cntl) {
238 radeon_emit(cs, PKT3(PKT3_SURFACE_SYNC, 3, 0));
239 radeon_emit(cs, cp_coher_cntl); /* CP_COHER_CNTL */
240 radeon_emit(cs, 0xffffffff); /* CP_COHER_SIZE */
241 radeon_emit(cs, 0); /* CP_COHER_BASE */
242 radeon_emit(cs, 0x0000000A); /* POLL_INTERVAL */
243 }
244
245 if (rctx->b.flags & R600_CONTEXT_START_PIPELINE_STATS) {
246 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
247 radeon_emit(cs, EVENT_TYPE(EVENT_TYPE_PIPELINESTAT_START) |
248 EVENT_INDEX(0));
249 } else if (rctx->b.flags & R600_CONTEXT_STOP_PIPELINE_STATS) {
250 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
251 radeon_emit(cs, EVENT_TYPE(EVENT_TYPE_PIPELINESTAT_STOP) |
252 EVENT_INDEX(0));
253 }
254
255 /* everything is properly flushed */
256 rctx->b.flags = 0;
257 }
258
r600_context_gfx_flush(void * context,unsigned flags,struct pipe_fence_handle ** fence)259 void r600_context_gfx_flush(void *context, unsigned flags,
260 struct pipe_fence_handle **fence)
261 {
262 struct r600_context *ctx = context;
263 struct radeon_cmdbuf *cs = ctx->b.gfx.cs;
264 struct radeon_winsys *ws = ctx->b.ws;
265
266 if (!radeon_emitted(cs, ctx->b.initial_gfx_cs_size))
267 return;
268
269 if (r600_check_device_reset(&ctx->b))
270 return;
271
272 r600_preflush_suspend_features(&ctx->b);
273
274 /* flush the framebuffer cache */
275 ctx->b.flags |= R600_CONTEXT_FLUSH_AND_INV |
276 R600_CONTEXT_FLUSH_AND_INV_CB |
277 R600_CONTEXT_FLUSH_AND_INV_DB |
278 R600_CONTEXT_FLUSH_AND_INV_CB_META |
279 R600_CONTEXT_FLUSH_AND_INV_DB_META |
280 R600_CONTEXT_WAIT_3D_IDLE |
281 R600_CONTEXT_WAIT_CP_DMA_IDLE;
282
283 r600_flush_emit(ctx);
284
285 if (ctx->trace_buf)
286 eg_trace_emit(ctx);
287 /* old kernels and userspace don't set SX_MISC, so we must reset it to 0 here */
288 if (ctx->b.chip_class == R600) {
289 radeon_set_context_reg(cs, R_028350_SX_MISC, 0);
290 }
291
292 if (ctx->is_debug) {
293 /* Save the IB for debug contexts. */
294 radeon_clear_saved_cs(&ctx->last_gfx);
295 radeon_save_cs(ws, cs, &ctx->last_gfx, true);
296 r600_resource_reference(&ctx->last_trace_buf, ctx->trace_buf);
297 r600_resource_reference(&ctx->trace_buf, NULL);
298 }
299 /* Flush the CS. */
300 ws->cs_flush(cs, flags, &ctx->b.last_gfx_fence);
301 if (fence)
302 ws->fence_reference(fence, ctx->b.last_gfx_fence);
303 ctx->b.num_gfx_cs_flushes++;
304
305 if (ctx->is_debug) {
306 if (!ws->fence_wait(ws, ctx->b.last_gfx_fence, 10000000)) {
307 const char *fname = getenv("R600_TRACE");
308 if (!fname)
309 exit(-1);
310 FILE *fl = fopen(fname, "w+");
311 if (fl) {
312 eg_dump_debug_state(&ctx->b.b, fl, 0);
313 fclose(fl);
314 } else
315 perror(fname);
316 exit(-1);
317 }
318 }
319 r600_begin_new_cs(ctx);
320 }
321
r600_begin_new_cs(struct r600_context * ctx)322 void r600_begin_new_cs(struct r600_context *ctx)
323 {
324 unsigned shader;
325
326 if (ctx->is_debug) {
327 uint32_t zero = 0;
328
329 /* Create a buffer used for writing trace IDs and initialize it to 0. */
330 assert(!ctx->trace_buf);
331 ctx->trace_buf = (struct r600_resource*)
332 pipe_buffer_create(ctx->b.b.screen, 0,
333 PIPE_USAGE_STAGING, 4);
334 if (ctx->trace_buf)
335 pipe_buffer_write_nooverlap(&ctx->b.b, &ctx->trace_buf->b.b,
336 0, sizeof(zero), &zero);
337 ctx->trace_id = 0;
338 }
339
340 if (ctx->trace_buf)
341 eg_trace_emit(ctx);
342
343 ctx->b.flags = 0;
344 ctx->b.gtt = 0;
345 ctx->b.vram = 0;
346
347 /* Begin a new CS. */
348 r600_emit_command_buffer(ctx->b.gfx.cs, &ctx->start_cs_cmd);
349
350 /* Re-emit states. */
351 r600_mark_atom_dirty(ctx, &ctx->alphatest_state.atom);
352 r600_mark_atom_dirty(ctx, &ctx->blend_color.atom);
353 r600_mark_atom_dirty(ctx, &ctx->cb_misc_state.atom);
354 r600_mark_atom_dirty(ctx, &ctx->clip_misc_state.atom);
355 r600_mark_atom_dirty(ctx, &ctx->clip_state.atom);
356 r600_mark_atom_dirty(ctx, &ctx->db_misc_state.atom);
357 r600_mark_atom_dirty(ctx, &ctx->db_state.atom);
358 r600_mark_atom_dirty(ctx, &ctx->framebuffer.atom);
359 if (ctx->b.chip_class >= EVERGREEN) {
360 r600_mark_atom_dirty(ctx, &ctx->fragment_images.atom);
361 r600_mark_atom_dirty(ctx, &ctx->fragment_buffers.atom);
362 r600_mark_atom_dirty(ctx, &ctx->compute_images.atom);
363 r600_mark_atom_dirty(ctx, &ctx->compute_buffers.atom);
364 }
365 r600_mark_atom_dirty(ctx, &ctx->hw_shader_stages[R600_HW_STAGE_PS].atom);
366 r600_mark_atom_dirty(ctx, &ctx->poly_offset_state.atom);
367 r600_mark_atom_dirty(ctx, &ctx->vgt_state.atom);
368 r600_mark_atom_dirty(ctx, &ctx->sample_mask.atom);
369 ctx->b.scissors.dirty_mask = (1 << R600_MAX_VIEWPORTS) - 1;
370 r600_mark_atom_dirty(ctx, &ctx->b.scissors.atom);
371 ctx->b.viewports.dirty_mask = (1 << R600_MAX_VIEWPORTS) - 1;
372 ctx->b.viewports.depth_range_dirty_mask = (1 << R600_MAX_VIEWPORTS) - 1;
373 r600_mark_atom_dirty(ctx, &ctx->b.viewports.atom);
374 if (ctx->b.chip_class <= EVERGREEN) {
375 r600_mark_atom_dirty(ctx, &ctx->config_state.atom);
376 }
377 r600_mark_atom_dirty(ctx, &ctx->stencil_ref.atom);
378 r600_mark_atom_dirty(ctx, &ctx->vertex_fetch_shader.atom);
379 r600_mark_atom_dirty(ctx, &ctx->hw_shader_stages[R600_HW_STAGE_ES].atom);
380 r600_mark_atom_dirty(ctx, &ctx->shader_stages.atom);
381 if (ctx->gs_shader) {
382 r600_mark_atom_dirty(ctx, &ctx->hw_shader_stages[R600_HW_STAGE_GS].atom);
383 r600_mark_atom_dirty(ctx, &ctx->gs_rings.atom);
384 }
385 if (ctx->tes_shader) {
386 r600_mark_atom_dirty(ctx, &ctx->hw_shader_stages[EG_HW_STAGE_HS].atom);
387 r600_mark_atom_dirty(ctx, &ctx->hw_shader_stages[EG_HW_STAGE_LS].atom);
388 }
389 r600_mark_atom_dirty(ctx, &ctx->hw_shader_stages[R600_HW_STAGE_VS].atom);
390 r600_mark_atom_dirty(ctx, &ctx->b.streamout.enable_atom);
391 r600_mark_atom_dirty(ctx, &ctx->b.render_cond_atom);
392
393 if (ctx->blend_state.cso)
394 r600_mark_atom_dirty(ctx, &ctx->blend_state.atom);
395 if (ctx->dsa_state.cso)
396 r600_mark_atom_dirty(ctx, &ctx->dsa_state.atom);
397 if (ctx->rasterizer_state.cso)
398 r600_mark_atom_dirty(ctx, &ctx->rasterizer_state.atom);
399
400 if (ctx->b.chip_class <= R700) {
401 r600_mark_atom_dirty(ctx, &ctx->seamless_cube_map.atom);
402 }
403
404 ctx->vertex_buffer_state.dirty_mask = ctx->vertex_buffer_state.enabled_mask;
405 r600_vertex_buffers_dirty(ctx);
406
407 /* Re-emit shader resources. */
408 for (shader = 0; shader < PIPE_SHADER_TYPES; shader++) {
409 struct r600_constbuf_state *constbuf = &ctx->constbuf_state[shader];
410 struct r600_textures_info *samplers = &ctx->samplers[shader];
411
412 constbuf->dirty_mask = constbuf->enabled_mask;
413 samplers->views.dirty_mask = samplers->views.enabled_mask;
414 samplers->states.dirty_mask = samplers->states.enabled_mask;
415
416 r600_constant_buffers_dirty(ctx, constbuf);
417 r600_sampler_views_dirty(ctx, &samplers->views);
418 r600_sampler_states_dirty(ctx, &samplers->states);
419 }
420
421 for (shader = 0; shader < ARRAY_SIZE(ctx->scratch_buffers); shader++) {
422 ctx->scratch_buffers[shader].dirty = true;
423 }
424
425 r600_postflush_resume_features(&ctx->b);
426
427 /* Re-emit the draw state. */
428 ctx->last_primitive_type = -1;
429 ctx->last_start_instance = -1;
430 ctx->last_rast_prim = -1;
431 ctx->current_rast_prim = -1;
432
433 assert(!ctx->b.gfx.cs->prev_dw);
434 ctx->b.initial_gfx_cs_size = ctx->b.gfx.cs->current.cdw;
435 }
436
r600_emit_pfp_sync_me(struct r600_context * rctx)437 void r600_emit_pfp_sync_me(struct r600_context *rctx)
438 {
439 struct radeon_cmdbuf *cs = rctx->b.gfx.cs;
440
441 if (rctx->b.chip_class >= EVERGREEN &&
442 rctx->b.screen->info.drm_minor >= 46) {
443 radeon_emit(cs, PKT3(PKT3_PFP_SYNC_ME, 0, 0));
444 radeon_emit(cs, 0);
445 } else {
446 /* Emulate PFP_SYNC_ME by writing a value to memory in ME and
447 * waiting for it in PFP.
448 */
449 struct r600_resource *buf = NULL;
450 unsigned offset, reloc;
451 uint64_t va;
452
453 /* 16-byte address alignment is required by WAIT_REG_MEM. */
454 u_suballocator_alloc(rctx->b.allocator_zeroed_memory, 4, 16,
455 &offset, (struct pipe_resource**)&buf);
456 if (!buf) {
457 /* This is too heavyweight, but will work. */
458 rctx->b.gfx.flush(rctx, PIPE_FLUSH_ASYNC, NULL);
459 return;
460 }
461
462 reloc = radeon_add_to_buffer_list(&rctx->b, &rctx->b.gfx, buf,
463 RADEON_USAGE_READWRITE,
464 RADEON_PRIO_FENCE);
465
466 va = buf->gpu_address + offset;
467 assert(va % 16 == 0);
468
469 /* Write 1 to memory in ME. */
470 radeon_emit(cs, PKT3(PKT3_MEM_WRITE, 3, 0));
471 radeon_emit(cs, va);
472 radeon_emit(cs, ((va >> 32) & 0xff) | MEM_WRITE_32_BITS);
473 radeon_emit(cs, 1);
474 radeon_emit(cs, 0);
475
476 radeon_emit(cs, PKT3(PKT3_NOP, 0, 0));
477 radeon_emit(cs, reloc);
478
479 /* Wait in PFP (PFP can only do GEQUAL against memory). */
480 radeon_emit(cs, PKT3(PKT3_WAIT_REG_MEM, 5, 0));
481 radeon_emit(cs, WAIT_REG_MEM_GEQUAL |
482 WAIT_REG_MEM_MEMORY |
483 WAIT_REG_MEM_PFP);
484 radeon_emit(cs, va);
485 radeon_emit(cs, va >> 32);
486 radeon_emit(cs, 1); /* reference value */
487 radeon_emit(cs, 0xffffffff); /* mask */
488 radeon_emit(cs, 4); /* poll interval */
489
490 radeon_emit(cs, PKT3(PKT3_NOP, 0, 0));
491 radeon_emit(cs, reloc);
492
493 r600_resource_reference(&buf, NULL);
494 }
495 }
496
497 /* The max number of bytes to copy per packet. */
498 #define CP_DMA_MAX_BYTE_COUNT ((1 << 21) - 8)
499
r600_cp_dma_copy_buffer(struct r600_context * rctx,struct pipe_resource * dst,uint64_t dst_offset,struct pipe_resource * src,uint64_t src_offset,unsigned size)500 void r600_cp_dma_copy_buffer(struct r600_context *rctx,
501 struct pipe_resource *dst, uint64_t dst_offset,
502 struct pipe_resource *src, uint64_t src_offset,
503 unsigned size)
504 {
505 struct radeon_cmdbuf *cs = rctx->b.gfx.cs;
506
507 assert(size);
508 assert(rctx->screen->b.has_cp_dma);
509
510 /* Mark the buffer range of destination as valid (initialized),
511 * so that transfer_map knows it should wait for the GPU when mapping
512 * that range. */
513 util_range_add(dst, &r600_resource(dst)->valid_buffer_range, dst_offset,
514 dst_offset + size);
515
516 dst_offset += r600_resource(dst)->gpu_address;
517 src_offset += r600_resource(src)->gpu_address;
518
519 /* Flush the caches where the resources are bound. */
520 rctx->b.flags |= r600_get_flush_flags(R600_COHERENCY_SHADER) |
521 R600_CONTEXT_WAIT_3D_IDLE;
522
523 /* There are differences between R700 and EG in CP DMA,
524 * but we only use the common bits here. */
525 while (size) {
526 unsigned sync = 0;
527 unsigned byte_count = MIN2(size, CP_DMA_MAX_BYTE_COUNT);
528 unsigned src_reloc, dst_reloc;
529
530 r600_need_cs_space(rctx,
531 10 + (rctx->b.flags ? R600_MAX_FLUSH_CS_DWORDS : 0) +
532 3 + R600_MAX_PFP_SYNC_ME_DWORDS, FALSE, 0);
533
534 /* Flush the caches for the first copy only. */
535 if (rctx->b.flags) {
536 r600_flush_emit(rctx);
537 }
538
539 /* Do the synchronization after the last copy, so that all data is written to memory. */
540 if (size == byte_count) {
541 sync = PKT3_CP_DMA_CP_SYNC;
542 }
543
544 /* This must be done after r600_need_cs_space. */
545 src_reloc = radeon_add_to_buffer_list(&rctx->b, &rctx->b.gfx, (struct r600_resource*)src,
546 RADEON_USAGE_READ, RADEON_PRIO_CP_DMA);
547 dst_reloc = radeon_add_to_buffer_list(&rctx->b, &rctx->b.gfx, (struct r600_resource*)dst,
548 RADEON_USAGE_WRITE, RADEON_PRIO_CP_DMA);
549
550 radeon_emit(cs, PKT3(PKT3_CP_DMA, 4, 0));
551 radeon_emit(cs, src_offset); /* SRC_ADDR_LO [31:0] */
552 radeon_emit(cs, sync | ((src_offset >> 32) & 0xff)); /* CP_SYNC [31] | SRC_ADDR_HI [7:0] */
553 radeon_emit(cs, dst_offset); /* DST_ADDR_LO [31:0] */
554 radeon_emit(cs, (dst_offset >> 32) & 0xff); /* DST_ADDR_HI [7:0] */
555 radeon_emit(cs, byte_count); /* COMMAND [29:22] | BYTE_COUNT [20:0] */
556
557 radeon_emit(cs, PKT3(PKT3_NOP, 0, 0));
558 radeon_emit(cs, src_reloc);
559 radeon_emit(cs, PKT3(PKT3_NOP, 0, 0));
560 radeon_emit(cs, dst_reloc);
561
562 size -= byte_count;
563 src_offset += byte_count;
564 dst_offset += byte_count;
565 }
566
567 /* CP_DMA_CP_SYNC doesn't wait for idle on R6xx, but this does. */
568 if (rctx->b.chip_class == R600)
569 radeon_set_config_reg(cs, R_008040_WAIT_UNTIL,
570 S_008040_WAIT_CP_DMA_IDLE(1));
571
572 /* CP DMA is executed in ME, but index buffers are read by PFP.
573 * This ensures that ME (CP DMA) is idle before PFP starts fetching
574 * indices. If we wanted to execute CP DMA in PFP, this packet
575 * should precede it.
576 */
577 r600_emit_pfp_sync_me(rctx);
578 }
579
r600_dma_copy_buffer(struct r600_context * rctx,struct pipe_resource * dst,struct pipe_resource * src,uint64_t dst_offset,uint64_t src_offset,uint64_t size)580 void r600_dma_copy_buffer(struct r600_context *rctx,
581 struct pipe_resource *dst,
582 struct pipe_resource *src,
583 uint64_t dst_offset,
584 uint64_t src_offset,
585 uint64_t size)
586 {
587 struct radeon_cmdbuf *cs = rctx->b.dma.cs;
588 unsigned i, ncopy, csize;
589 struct r600_resource *rdst = (struct r600_resource*)dst;
590 struct r600_resource *rsrc = (struct r600_resource*)src;
591
592 /* Mark the buffer range of destination as valid (initialized),
593 * so that transfer_map knows it should wait for the GPU when mapping
594 * that range. */
595 util_range_add(&rdst->b.b, &rdst->valid_buffer_range, dst_offset,
596 dst_offset + size);
597
598 size >>= 2; /* convert to dwords */
599 ncopy = (size / R600_DMA_COPY_MAX_SIZE_DW) + !!(size % R600_DMA_COPY_MAX_SIZE_DW);
600
601 r600_need_dma_space(&rctx->b, ncopy * 5, rdst, rsrc);
602 for (i = 0; i < ncopy; i++) {
603 csize = size < R600_DMA_COPY_MAX_SIZE_DW ? size : R600_DMA_COPY_MAX_SIZE_DW;
604 /* emit reloc before writing cs so that cs is always in consistent state */
605 radeon_add_to_buffer_list(&rctx->b, &rctx->b.dma, rsrc, RADEON_USAGE_READ, 0);
606 radeon_add_to_buffer_list(&rctx->b, &rctx->b.dma, rdst, RADEON_USAGE_WRITE, 0);
607 radeon_emit(cs, DMA_PACKET(DMA_PACKET_COPY, 0, 0, csize));
608 radeon_emit(cs, dst_offset & 0xfffffffc);
609 radeon_emit(cs, src_offset & 0xfffffffc);
610 radeon_emit(cs, (dst_offset >> 32UL) & 0xff);
611 radeon_emit(cs, (src_offset >> 32UL) & 0xff);
612 dst_offset += csize << 2;
613 src_offset += csize << 2;
614 size -= csize;
615 }
616 }
617