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radv: Remove unused variable.
[mesa.git] / src / amd / vulkan / si_cmd_buffer.c
1 /*
2 * Copyright © 2016 Red Hat.
3 * Copyright © 2016 Bas Nieuwenhuizen
4 *
5 * based on si_state.c
6 * Copyright © 2015 Advanced Micro Devices, Inc.
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice (including the next
16 * paragraph) shall be included in all copies or substantial portions of the
17 * Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
22 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
23 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
24 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
25 * IN THE SOFTWARE.
26 */
27
28 /* command buffer handling for SI */
29
30 #include "radv_private.h"
31 #include "radv_shader.h"
32 #include "radv_cs.h"
33 #include "sid.h"
34 #include "gfx9d.h"
35 #include "radv_util.h"
36 #include "main/macros.h"
37
38 static void
39 si_write_harvested_raster_configs(struct radv_physical_device *physical_device,
40 struct radeon_cmdbuf *cs,
41 unsigned raster_config,
42 unsigned raster_config_1)
43 {
44 unsigned num_se = MAX2(physical_device->rad_info.max_se, 1);
45 unsigned raster_config_se[4];
46 unsigned se;
47
48 ac_get_harvested_configs(&physical_device->rad_info,
49 raster_config,
50 &raster_config_1,
51 raster_config_se);
52
53 for (se = 0; se < num_se; se++) {
54 /* GRBM_GFX_INDEX has a different offset on SI and CI+ */
55 if (physical_device->rad_info.chip_class < CIK)
56 radeon_set_config_reg(cs, R_00802C_GRBM_GFX_INDEX,
57 S_00802C_SE_INDEX(se) |
58 S_00802C_SH_BROADCAST_WRITES(1) |
59 S_00802C_INSTANCE_BROADCAST_WRITES(1));
60 else
61 radeon_set_uconfig_reg(cs, R_030800_GRBM_GFX_INDEX,
62 S_030800_SE_INDEX(se) | S_030800_SH_BROADCAST_WRITES(1) |
63 S_030800_INSTANCE_BROADCAST_WRITES(1));
64 radeon_set_context_reg(cs, R_028350_PA_SC_RASTER_CONFIG, raster_config_se[se]);
65 }
66
67 /* GRBM_GFX_INDEX has a different offset on SI and CI+ */
68 if (physical_device->rad_info.chip_class < CIK)
69 radeon_set_config_reg(cs, R_00802C_GRBM_GFX_INDEX,
70 S_00802C_SE_BROADCAST_WRITES(1) |
71 S_00802C_SH_BROADCAST_WRITES(1) |
72 S_00802C_INSTANCE_BROADCAST_WRITES(1));
73 else
74 radeon_set_uconfig_reg(cs, R_030800_GRBM_GFX_INDEX,
75 S_030800_SE_BROADCAST_WRITES(1) | S_030800_SH_BROADCAST_WRITES(1) |
76 S_030800_INSTANCE_BROADCAST_WRITES(1));
77
78 if (physical_device->rad_info.chip_class >= CIK)
79 radeon_set_context_reg(cs, R_028354_PA_SC_RASTER_CONFIG_1, raster_config_1);
80 }
81
82 void
83 si_emit_compute(struct radv_physical_device *physical_device,
84 struct radeon_cmdbuf *cs)
85 {
86 radeon_set_sh_reg_seq(cs, R_00B810_COMPUTE_START_X, 3);
87 radeon_emit(cs, 0);
88 radeon_emit(cs, 0);
89 radeon_emit(cs, 0);
90
91 radeon_set_sh_reg_seq(cs, R_00B858_COMPUTE_STATIC_THREAD_MGMT_SE0, 2);
92 /* R_00B858_COMPUTE_STATIC_THREAD_MGMT_SE0 / SE1 */
93 radeon_emit(cs, S_00B858_SH0_CU_EN(0xffff) | S_00B858_SH1_CU_EN(0xffff));
94 radeon_emit(cs, S_00B85C_SH0_CU_EN(0xffff) | S_00B85C_SH1_CU_EN(0xffff));
95
96 if (physical_device->rad_info.chip_class >= CIK) {
97 /* Also set R_00B858_COMPUTE_STATIC_THREAD_MGMT_SE2 / SE3 */
98 radeon_set_sh_reg_seq(cs,
99 R_00B864_COMPUTE_STATIC_THREAD_MGMT_SE2, 2);
100 radeon_emit(cs, S_00B864_SH0_CU_EN(0xffff) |
101 S_00B864_SH1_CU_EN(0xffff));
102 radeon_emit(cs, S_00B868_SH0_CU_EN(0xffff) |
103 S_00B868_SH1_CU_EN(0xffff));
104 }
105
106 /* This register has been moved to R_00CD20_COMPUTE_MAX_WAVE_ID
107 * and is now per pipe, so it should be handled in the
108 * kernel if we want to use something other than the default value,
109 * which is now 0x22f.
110 */
111 if (physical_device->rad_info.chip_class <= SI) {
112 /* XXX: This should be:
113 * (number of compute units) * 4 * (waves per simd) - 1 */
114
115 radeon_set_sh_reg(cs, R_00B82C_COMPUTE_MAX_WAVE_ID,
116 0x190 /* Default value */);
117 }
118 }
119
120 /* 12.4 fixed-point */
121 static unsigned radv_pack_float_12p4(float x)
122 {
123 return x <= 0 ? 0 :
124 x >= 4096 ? 0xffff : x * 16;
125 }
126
127 static void
128 si_set_raster_config(struct radv_physical_device *physical_device,
129 struct radeon_cmdbuf *cs)
130 {
131 unsigned num_rb = MIN2(physical_device->rad_info.num_render_backends, 16);
132 unsigned rb_mask = physical_device->rad_info.enabled_rb_mask;
133 unsigned raster_config, raster_config_1;
134
135 ac_get_raster_config(&physical_device->rad_info,
136 &raster_config,
137 &raster_config_1, NULL);
138
139 /* Always use the default config when all backends are enabled
140 * (or when we failed to determine the enabled backends).
141 */
142 if (!rb_mask || util_bitcount(rb_mask) >= num_rb) {
143 radeon_set_context_reg(cs, R_028350_PA_SC_RASTER_CONFIG,
144 raster_config);
145 if (physical_device->rad_info.chip_class >= CIK)
146 radeon_set_context_reg(cs, R_028354_PA_SC_RASTER_CONFIG_1,
147 raster_config_1);
148 } else {
149 si_write_harvested_raster_configs(physical_device, cs,
150 raster_config,
151 raster_config_1);
152 }
153 }
154
155 void
156 si_emit_graphics(struct radv_physical_device *physical_device,
157 struct radeon_cmdbuf *cs)
158 {
159 int i;
160
161 /* Only SI can disable CLEAR_STATE for now. */
162 assert(physical_device->has_clear_state ||
163 physical_device->rad_info.chip_class == SI);
164
165 radeon_emit(cs, PKT3(PKT3_CONTEXT_CONTROL, 1, 0));
166 radeon_emit(cs, CONTEXT_CONTROL_LOAD_ENABLE(1));
167 radeon_emit(cs, CONTEXT_CONTROL_SHADOW_ENABLE(1));
168
169 if (physical_device->has_clear_state) {
170 radeon_emit(cs, PKT3(PKT3_CLEAR_STATE, 0, 0));
171 radeon_emit(cs, 0);
172 }
173
174 if (physical_device->rad_info.chip_class <= VI)
175 si_set_raster_config(physical_device, cs);
176
177 radeon_set_context_reg(cs, R_028A18_VGT_HOS_MAX_TESS_LEVEL, fui(64));
178 if (!physical_device->has_clear_state)
179 radeon_set_context_reg(cs, R_028A1C_VGT_HOS_MIN_TESS_LEVEL, fui(0));
180
181 /* FIXME calculate these values somehow ??? */
182 if (physical_device->rad_info.chip_class <= VI) {
183 radeon_set_context_reg(cs, R_028A54_VGT_GS_PER_ES, SI_GS_PER_ES);
184 radeon_set_context_reg(cs, R_028A58_VGT_ES_PER_GS, 0x40);
185 }
186
187 if (!physical_device->has_clear_state) {
188 radeon_set_context_reg(cs, R_028A5C_VGT_GS_PER_VS, 0x2);
189 radeon_set_context_reg(cs, R_028A8C_VGT_PRIMITIVEID_RESET, 0x0);
190 radeon_set_context_reg(cs, R_028B98_VGT_STRMOUT_BUFFER_CONFIG, 0x0);
191 }
192
193 radeon_set_context_reg(cs, R_028AA0_VGT_INSTANCE_STEP_RATE_0, 1);
194 if (!physical_device->has_clear_state)
195 radeon_set_context_reg(cs, R_028AB8_VGT_VTX_CNT_EN, 0x0);
196 if (physical_device->rad_info.chip_class < CIK)
197 radeon_set_config_reg(cs, R_008A14_PA_CL_ENHANCE, S_008A14_NUM_CLIP_SEQ(3) |
198 S_008A14_CLIP_VTX_REORDER_ENA(1));
199
200 radeon_set_context_reg(cs, R_028BD4_PA_SC_CENTROID_PRIORITY_0, 0x76543210);
201 radeon_set_context_reg(cs, R_028BD8_PA_SC_CENTROID_PRIORITY_1, 0xfedcba98);
202
203 if (!physical_device->has_clear_state)
204 radeon_set_context_reg(cs, R_02882C_PA_SU_PRIM_FILTER_CNTL, 0);
205
206 /* CLEAR_STATE doesn't clear these correctly on certain generations.
207 * I don't know why. Deduced by trial and error.
208 */
209 if (physical_device->rad_info.chip_class <= CIK) {
210 radeon_set_context_reg(cs, R_028B28_VGT_STRMOUT_DRAW_OPAQUE_OFFSET, 0);
211 radeon_set_context_reg(cs, R_028204_PA_SC_WINDOW_SCISSOR_TL,
212 S_028204_WINDOW_OFFSET_DISABLE(1));
213 radeon_set_context_reg(cs, R_028240_PA_SC_GENERIC_SCISSOR_TL,
214 S_028240_WINDOW_OFFSET_DISABLE(1));
215 radeon_set_context_reg(cs, R_028244_PA_SC_GENERIC_SCISSOR_BR,
216 S_028244_BR_X(16384) | S_028244_BR_Y(16384));
217 radeon_set_context_reg(cs, R_028030_PA_SC_SCREEN_SCISSOR_TL, 0);
218 radeon_set_context_reg(cs, R_028034_PA_SC_SCREEN_SCISSOR_BR,
219 S_028034_BR_X(16384) | S_028034_BR_Y(16384));
220 }
221
222 if (!physical_device->has_clear_state) {
223 for (i = 0; i < 16; i++) {
224 radeon_set_context_reg(cs, R_0282D0_PA_SC_VPORT_ZMIN_0 + i*8, 0);
225 radeon_set_context_reg(cs, R_0282D4_PA_SC_VPORT_ZMAX_0 + i*8, fui(1.0));
226 }
227 }
228
229 if (!physical_device->has_clear_state) {
230 radeon_set_context_reg(cs, R_02820C_PA_SC_CLIPRECT_RULE, 0xFFFF);
231 radeon_set_context_reg(cs, R_028230_PA_SC_EDGERULE, 0xAAAAAAAA);
232 /* PA_SU_HARDWARE_SCREEN_OFFSET must be 0 due to hw bug on SI */
233 radeon_set_context_reg(cs, R_028234_PA_SU_HARDWARE_SCREEN_OFFSET, 0);
234 radeon_set_context_reg(cs, R_028820_PA_CL_NANINF_CNTL, 0);
235 radeon_set_context_reg(cs, R_028AC0_DB_SRESULTS_COMPARE_STATE0, 0x0);
236 radeon_set_context_reg(cs, R_028AC4_DB_SRESULTS_COMPARE_STATE1, 0x0);
237 radeon_set_context_reg(cs, R_028AC8_DB_PRELOAD_CONTROL, 0x0);
238 }
239
240 radeon_set_context_reg(cs, R_02800C_DB_RENDER_OVERRIDE,
241 S_02800C_FORCE_HIS_ENABLE0(V_02800C_FORCE_DISABLE) |
242 S_02800C_FORCE_HIS_ENABLE1(V_02800C_FORCE_DISABLE));
243
244 if (physical_device->rad_info.chip_class >= GFX9) {
245 radeon_set_uconfig_reg(cs, R_030920_VGT_MAX_VTX_INDX, ~0);
246 radeon_set_uconfig_reg(cs, R_030924_VGT_MIN_VTX_INDX, 0);
247 radeon_set_uconfig_reg(cs, R_030928_VGT_INDX_OFFSET, 0);
248 } else {
249 /* These registers, when written, also overwrite the
250 * CLEAR_STATE context, so we can't rely on CLEAR_STATE setting
251 * them. It would be an issue if there was another UMD
252 * changing them.
253 */
254 radeon_set_context_reg(cs, R_028400_VGT_MAX_VTX_INDX, ~0);
255 radeon_set_context_reg(cs, R_028404_VGT_MIN_VTX_INDX, 0);
256 radeon_set_context_reg(cs, R_028408_VGT_INDX_OFFSET, 0);
257 }
258
259 if (physical_device->rad_info.chip_class >= CIK) {
260 if (physical_device->rad_info.chip_class >= GFX9) {
261 radeon_set_sh_reg(cs, R_00B41C_SPI_SHADER_PGM_RSRC3_HS,
262 S_00B41C_CU_EN(0xffff) | S_00B41C_WAVE_LIMIT(0x3F));
263 } else {
264 radeon_set_sh_reg(cs, R_00B51C_SPI_SHADER_PGM_RSRC3_LS,
265 S_00B51C_CU_EN(0xffff) | S_00B51C_WAVE_LIMIT(0x3F));
266 radeon_set_sh_reg(cs, R_00B41C_SPI_SHADER_PGM_RSRC3_HS,
267 S_00B41C_WAVE_LIMIT(0x3F));
268 radeon_set_sh_reg(cs, R_00B31C_SPI_SHADER_PGM_RSRC3_ES,
269 S_00B31C_CU_EN(0xffff) | S_00B31C_WAVE_LIMIT(0x3F));
270 /* If this is 0, Bonaire can hang even if GS isn't being used.
271 * Other chips are unaffected. These are suboptimal values,
272 * but we don't use on-chip GS.
273 */
274 radeon_set_context_reg(cs, R_028A44_VGT_GS_ONCHIP_CNTL,
275 S_028A44_ES_VERTS_PER_SUBGRP(64) |
276 S_028A44_GS_PRIMS_PER_SUBGRP(4));
277 }
278 radeon_set_sh_reg(cs, R_00B21C_SPI_SHADER_PGM_RSRC3_GS,
279 S_00B21C_CU_EN(0xffff) | S_00B21C_WAVE_LIMIT(0x3F));
280
281 if (physical_device->rad_info.num_good_cu_per_sh <= 4) {
282 /* Too few available compute units per SH. Disallowing
283 * VS to run on CU0 could hurt us more than late VS
284 * allocation would help.
285 *
286 * LATE_ALLOC_VS = 2 is the highest safe number.
287 */
288 radeon_set_sh_reg(cs, R_00B118_SPI_SHADER_PGM_RSRC3_VS,
289 S_00B118_CU_EN(0xffff) | S_00B118_WAVE_LIMIT(0x3F) );
290 radeon_set_sh_reg(cs, R_00B11C_SPI_SHADER_LATE_ALLOC_VS, S_00B11C_LIMIT(2));
291 } else {
292 /* Set LATE_ALLOC_VS == 31. It should be less than
293 * the number of scratch waves. Limitations:
294 * - VS can't execute on CU0.
295 * - If HS writes outputs to LDS, LS can't execute on CU0.
296 */
297 radeon_set_sh_reg(cs, R_00B118_SPI_SHADER_PGM_RSRC3_VS,
298 S_00B118_CU_EN(0xfffe) | S_00B118_WAVE_LIMIT(0x3F));
299 radeon_set_sh_reg(cs, R_00B11C_SPI_SHADER_LATE_ALLOC_VS, S_00B11C_LIMIT(31));
300 }
301
302 radeon_set_sh_reg(cs, R_00B01C_SPI_SHADER_PGM_RSRC3_PS,
303 S_00B01C_CU_EN(0xffff) | S_00B01C_WAVE_LIMIT(0x3F));
304 }
305
306 if (physical_device->rad_info.chip_class >= VI) {
307 uint32_t vgt_tess_distribution;
308
309 vgt_tess_distribution = S_028B50_ACCUM_ISOLINE(32) |
310 S_028B50_ACCUM_TRI(11) |
311 S_028B50_ACCUM_QUAD(11) |
312 S_028B50_DONUT_SPLIT(16);
313
314 if (physical_device->rad_info.family == CHIP_FIJI ||
315 physical_device->rad_info.family >= CHIP_POLARIS10)
316 vgt_tess_distribution |= S_028B50_TRAP_SPLIT(3);
317
318 radeon_set_context_reg(cs, R_028B50_VGT_TESS_DISTRIBUTION,
319 vgt_tess_distribution);
320 } else if (!physical_device->has_clear_state) {
321 radeon_set_context_reg(cs, R_028C58_VGT_VERTEX_REUSE_BLOCK_CNTL, 14);
322 radeon_set_context_reg(cs, R_028C5C_VGT_OUT_DEALLOC_CNTL, 16);
323 }
324
325 if (physical_device->rad_info.chip_class >= GFX9) {
326 unsigned num_se = physical_device->rad_info.max_se;
327 unsigned pc_lines = 0;
328
329 switch (physical_device->rad_info.family) {
330 case CHIP_VEGA10:
331 case CHIP_VEGA12:
332 case CHIP_VEGA20:
333 pc_lines = 4096;
334 break;
335 case CHIP_RAVEN:
336 case CHIP_RAVEN2:
337 pc_lines = 1024;
338 break;
339 default:
340 assert(0);
341 }
342
343 radeon_set_context_reg(cs, R_028C48_PA_SC_BINNER_CNTL_1,
344 S_028C48_MAX_ALLOC_COUNT(MIN2(128, pc_lines / (4 * num_se))) |
345 S_028C48_MAX_PRIM_PER_BATCH(1023));
346 radeon_set_context_reg(cs, R_028C4C_PA_SC_CONSERVATIVE_RASTERIZATION_CNTL,
347 S_028C4C_NULL_SQUAD_AA_MASK_ENABLE(1));
348 radeon_set_uconfig_reg(cs, R_030968_VGT_INSTANCE_BASE_ID, 0);
349 }
350
351 unsigned tmp = (unsigned)(1.0 * 8.0);
352 radeon_set_context_reg_seq(cs, R_028A00_PA_SU_POINT_SIZE, 1);
353 radeon_emit(cs, S_028A00_HEIGHT(tmp) | S_028A00_WIDTH(tmp));
354 radeon_set_context_reg_seq(cs, R_028A04_PA_SU_POINT_MINMAX, 1);
355 radeon_emit(cs, S_028A04_MIN_SIZE(radv_pack_float_12p4(0)) |
356 S_028A04_MAX_SIZE(radv_pack_float_12p4(8192/2)));
357
358 if (!physical_device->has_clear_state) {
359 radeon_set_context_reg(cs, R_028004_DB_COUNT_CONTROL,
360 S_028004_ZPASS_INCREMENT_DISABLE(1));
361 }
362
363 /* Enable the Polaris small primitive filter control.
364 * XXX: There is possibly an issue when MSAA is off (see RadeonSI
365 * has_msaa_sample_loc_bug). But this doesn't seem to regress anything,
366 * and AMDVLK doesn't have a workaround as well.
367 */
368 if (physical_device->rad_info.family >= CHIP_POLARIS10) {
369 unsigned small_prim_filter_cntl =
370 S_028830_SMALL_PRIM_FILTER_ENABLE(1) |
371 /* Workaround for a hw line bug. */
372 S_028830_LINE_FILTER_DISABLE(physical_device->rad_info.family <= CHIP_POLARIS12);
373
374 radeon_set_context_reg(cs, R_028830_PA_SU_SMALL_PRIM_FILTER_CNTL,
375 small_prim_filter_cntl);
376 }
377
378 si_emit_compute(physical_device, cs);
379 }
380
381 void
382 cik_create_gfx_config(struct radv_device *device)
383 {
384 struct radeon_cmdbuf *cs = device->ws->cs_create(device->ws, RING_GFX);
385 if (!cs)
386 return;
387
388 si_emit_graphics(device->physical_device, cs);
389
390 while (cs->cdw & 7) {
391 if (device->physical_device->rad_info.gfx_ib_pad_with_type2)
392 radeon_emit(cs, 0x80000000);
393 else
394 radeon_emit(cs, 0xffff1000);
395 }
396
397 device->gfx_init = device->ws->buffer_create(device->ws,
398 cs->cdw * 4, 4096,
399 RADEON_DOMAIN_GTT,
400 RADEON_FLAG_CPU_ACCESS|
401 RADEON_FLAG_NO_INTERPROCESS_SHARING |
402 RADEON_FLAG_READ_ONLY);
403 if (!device->gfx_init)
404 goto fail;
405
406 void *map = device->ws->buffer_map(device->gfx_init);
407 if (!map) {
408 device->ws->buffer_destroy(device->gfx_init);
409 device->gfx_init = NULL;
410 goto fail;
411 }
412 memcpy(map, cs->buf, cs->cdw * 4);
413
414 device->ws->buffer_unmap(device->gfx_init);
415 device->gfx_init_size_dw = cs->cdw;
416 fail:
417 device->ws->cs_destroy(cs);
418 }
419
420 static void
421 get_viewport_xform(const VkViewport *viewport,
422 float scale[3], float translate[3])
423 {
424 float x = viewport->x;
425 float y = viewport->y;
426 float half_width = 0.5f * viewport->width;
427 float half_height = 0.5f * viewport->height;
428 double n = viewport->minDepth;
429 double f = viewport->maxDepth;
430
431 scale[0] = half_width;
432 translate[0] = half_width + x;
433 scale[1] = half_height;
434 translate[1] = half_height + y;
435
436 scale[2] = (f - n);
437 translate[2] = n;
438 }
439
440 void
441 si_write_viewport(struct radeon_cmdbuf *cs, int first_vp,
442 int count, const VkViewport *viewports)
443 {
444 int i;
445
446 assert(count);
447 radeon_set_context_reg_seq(cs, R_02843C_PA_CL_VPORT_XSCALE +
448 first_vp * 4 * 6, count * 6);
449
450 for (i = 0; i < count; i++) {
451 float scale[3], translate[3];
452
453
454 get_viewport_xform(&viewports[i], scale, translate);
455 radeon_emit(cs, fui(scale[0]));
456 radeon_emit(cs, fui(translate[0]));
457 radeon_emit(cs, fui(scale[1]));
458 radeon_emit(cs, fui(translate[1]));
459 radeon_emit(cs, fui(scale[2]));
460 radeon_emit(cs, fui(translate[2]));
461 }
462
463 radeon_set_context_reg_seq(cs, R_0282D0_PA_SC_VPORT_ZMIN_0 +
464 first_vp * 4 * 2, count * 2);
465 for (i = 0; i < count; i++) {
466 float zmin = MIN2(viewports[i].minDepth, viewports[i].maxDepth);
467 float zmax = MAX2(viewports[i].minDepth, viewports[i].maxDepth);
468 radeon_emit(cs, fui(zmin));
469 radeon_emit(cs, fui(zmax));
470 }
471 }
472
473 static VkRect2D si_scissor_from_viewport(const VkViewport *viewport)
474 {
475 float scale[3], translate[3];
476 VkRect2D rect;
477
478 get_viewport_xform(viewport, scale, translate);
479
480 rect.offset.x = translate[0] - fabs(scale[0]);
481 rect.offset.y = translate[1] - fabs(scale[1]);
482 rect.extent.width = ceilf(translate[0] + fabs(scale[0])) - rect.offset.x;
483 rect.extent.height = ceilf(translate[1] + fabs(scale[1])) - rect.offset.y;
484
485 return rect;
486 }
487
488 static VkRect2D si_intersect_scissor(const VkRect2D *a, const VkRect2D *b) {
489 VkRect2D ret;
490 ret.offset.x = MAX2(a->offset.x, b->offset.x);
491 ret.offset.y = MAX2(a->offset.y, b->offset.y);
492 ret.extent.width = MIN2(a->offset.x + a->extent.width,
493 b->offset.x + b->extent.width) - ret.offset.x;
494 ret.extent.height = MIN2(a->offset.y + a->extent.height,
495 b->offset.y + b->extent.height) - ret.offset.y;
496 return ret;
497 }
498
499 void
500 si_write_scissors(struct radeon_cmdbuf *cs, int first,
501 int count, const VkRect2D *scissors,
502 const VkViewport *viewports, bool can_use_guardband)
503 {
504 int i;
505 float scale[3], translate[3], guardband_x = INFINITY, guardband_y = INFINITY;
506 const float max_range = 32767.0f;
507 if (!count)
508 return;
509
510 radeon_set_context_reg_seq(cs, R_028250_PA_SC_VPORT_SCISSOR_0_TL + first * 4 * 2, count * 2);
511 for (i = 0; i < count; i++) {
512 VkRect2D viewport_scissor = si_scissor_from_viewport(viewports + i);
513 VkRect2D scissor = si_intersect_scissor(&scissors[i], &viewport_scissor);
514
515 get_viewport_xform(viewports + i, scale, translate);
516 scale[0] = fabsf(scale[0]);
517 scale[1] = fabsf(scale[1]);
518
519 if (scale[0] < 0.5)
520 scale[0] = 0.5;
521 if (scale[1] < 0.5)
522 scale[1] = 0.5;
523
524 guardband_x = MIN2(guardband_x, (max_range - fabsf(translate[0])) / scale[0]);
525 guardband_y = MIN2(guardband_y, (max_range - fabsf(translate[1])) / scale[1]);
526
527 radeon_emit(cs, S_028250_TL_X(scissor.offset.x) |
528 S_028250_TL_Y(scissor.offset.y) |
529 S_028250_WINDOW_OFFSET_DISABLE(1));
530 radeon_emit(cs, S_028254_BR_X(scissor.offset.x + scissor.extent.width) |
531 S_028254_BR_Y(scissor.offset.y + scissor.extent.height));
532 }
533 if (!can_use_guardband) {
534 guardband_x = 1.0;
535 guardband_y = 1.0;
536 }
537
538 radeon_set_context_reg_seq(cs, R_028BE8_PA_CL_GB_VERT_CLIP_ADJ, 4);
539 radeon_emit(cs, fui(guardband_y));
540 radeon_emit(cs, fui(1.0));
541 radeon_emit(cs, fui(guardband_x));
542 radeon_emit(cs, fui(1.0));
543 }
544
545 static inline unsigned
546 radv_prims_for_vertices(struct radv_prim_vertex_count *info, unsigned num)
547 {
548 if (num == 0)
549 return 0;
550
551 if (info->incr == 0)
552 return 0;
553
554 if (num < info->min)
555 return 0;
556
557 return 1 + ((num - info->min) / info->incr);
558 }
559
560 uint32_t
561 si_get_ia_multi_vgt_param(struct radv_cmd_buffer *cmd_buffer,
562 bool instanced_draw, bool indirect_draw,
563 uint32_t draw_vertex_count)
564 {
565 enum chip_class chip_class = cmd_buffer->device->physical_device->rad_info.chip_class;
566 enum radeon_family family = cmd_buffer->device->physical_device->rad_info.family;
567 struct radeon_info *info = &cmd_buffer->device->physical_device->rad_info;
568 const unsigned max_primgroup_in_wave = 2;
569 /* SWITCH_ON_EOP(0) is always preferable. */
570 bool wd_switch_on_eop = false;
571 bool ia_switch_on_eop = false;
572 bool ia_switch_on_eoi = false;
573 bool partial_vs_wave = false;
574 bool partial_es_wave = cmd_buffer->state.pipeline->graphics.ia_multi_vgt_param.partial_es_wave;
575 bool multi_instances_smaller_than_primgroup;
576
577 multi_instances_smaller_than_primgroup = indirect_draw;
578 if (!multi_instances_smaller_than_primgroup && instanced_draw) {
579 uint32_t num_prims = radv_prims_for_vertices(&cmd_buffer->state.pipeline->graphics.prim_vertex_count, draw_vertex_count);
580 if (num_prims < cmd_buffer->state.pipeline->graphics.ia_multi_vgt_param.primgroup_size)
581 multi_instances_smaller_than_primgroup = true;
582 }
583
584 ia_switch_on_eoi = cmd_buffer->state.pipeline->graphics.ia_multi_vgt_param.ia_switch_on_eoi;
585 partial_vs_wave = cmd_buffer->state.pipeline->graphics.ia_multi_vgt_param.partial_vs_wave;
586
587 if (chip_class >= CIK) {
588 wd_switch_on_eop = cmd_buffer->state.pipeline->graphics.ia_multi_vgt_param.wd_switch_on_eop;
589
590 /* Hawaii hangs if instancing is enabled and WD_SWITCH_ON_EOP is 0.
591 * We don't know that for indirect drawing, so treat it as
592 * always problematic. */
593 if (family == CHIP_HAWAII &&
594 (instanced_draw || indirect_draw))
595 wd_switch_on_eop = true;
596
597 /* Performance recommendation for 4 SE Gfx7-8 parts if
598 * instances are smaller than a primgroup.
599 * Assume indirect draws always use small instances.
600 * This is needed for good VS wave utilization.
601 */
602 if (chip_class <= VI &&
603 info->max_se == 4 &&
604 multi_instances_smaller_than_primgroup)
605 wd_switch_on_eop = true;
606
607 /* Required on CIK and later. */
608 if (info->max_se > 2 && !wd_switch_on_eop)
609 ia_switch_on_eoi = true;
610
611 /* Required by Hawaii and, for some special cases, by VI. */
612 if (ia_switch_on_eoi &&
613 (family == CHIP_HAWAII ||
614 (chip_class == VI &&
615 /* max primgroup in wave is always 2 - leave this for documentation */
616 (radv_pipeline_has_gs(cmd_buffer->state.pipeline) || max_primgroup_in_wave != 2))))
617 partial_vs_wave = true;
618
619 /* Instancing bug on Bonaire. */
620 if (family == CHIP_BONAIRE && ia_switch_on_eoi &&
621 (instanced_draw || indirect_draw))
622 partial_vs_wave = true;
623
624 /* If the WD switch is false, the IA switch must be false too. */
625 assert(wd_switch_on_eop || !ia_switch_on_eop);
626 }
627 /* If SWITCH_ON_EOI is set, PARTIAL_ES_WAVE must be set too. */
628 if (chip_class <= VI && ia_switch_on_eoi)
629 partial_es_wave = true;
630
631 if (radv_pipeline_has_gs(cmd_buffer->state.pipeline)) {
632 /* GS hw bug with single-primitive instances and SWITCH_ON_EOI.
633 * The hw doc says all multi-SE chips are affected, but amdgpu-pro Vulkan
634 * only applies it to Hawaii. Do what amdgpu-pro Vulkan does.
635 */
636 if (family == CHIP_HAWAII && ia_switch_on_eoi) {
637 bool set_vgt_flush = indirect_draw;
638 if (!set_vgt_flush && instanced_draw) {
639 uint32_t num_prims = radv_prims_for_vertices(&cmd_buffer->state.pipeline->graphics.prim_vertex_count, draw_vertex_count);
640 if (num_prims <= 1)
641 set_vgt_flush = true;
642 }
643 if (set_vgt_flush)
644 cmd_buffer->state.flush_bits |= RADV_CMD_FLAG_VGT_FLUSH;
645 }
646 }
647
648 return cmd_buffer->state.pipeline->graphics.ia_multi_vgt_param.base |
649 S_028AA8_SWITCH_ON_EOP(ia_switch_on_eop) |
650 S_028AA8_SWITCH_ON_EOI(ia_switch_on_eoi) |
651 S_028AA8_PARTIAL_VS_WAVE_ON(partial_vs_wave) |
652 S_028AA8_PARTIAL_ES_WAVE_ON(partial_es_wave) |
653 S_028AA8_WD_SWITCH_ON_EOP(chip_class >= CIK ? wd_switch_on_eop : 0);
654
655 }
656
657 void si_cs_emit_write_event_eop(struct radeon_cmdbuf *cs,
658 enum chip_class chip_class,
659 bool is_mec,
660 unsigned event, unsigned event_flags,
661 unsigned data_sel,
662 uint64_t va,
663 uint32_t new_fence,
664 uint64_t gfx9_eop_bug_va)
665 {
666 unsigned op = EVENT_TYPE(event) |
667 EVENT_INDEX(5) |
668 event_flags;
669 unsigned is_gfx8_mec = is_mec && chip_class < GFX9;
670 unsigned sel = EOP_DATA_SEL(data_sel);
671
672 /* Wait for write confirmation before writing data, but don't send
673 * an interrupt. */
674 if (data_sel != EOP_DATA_SEL_DISCARD)
675 sel |= EOP_INT_SEL(EOP_INT_SEL_SEND_DATA_AFTER_WR_CONFIRM);
676
677 if (chip_class >= GFX9 || is_gfx8_mec) {
678 /* A ZPASS_DONE or PIXEL_STAT_DUMP_EVENT (of the DB occlusion
679 * counters) must immediately precede every timestamp event to
680 * prevent a GPU hang on GFX9.
681 */
682 if (chip_class == GFX9 && !is_mec) {
683 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 2, 0));
684 radeon_emit(cs, EVENT_TYPE(EVENT_TYPE_ZPASS_DONE) | EVENT_INDEX(1));
685 radeon_emit(cs, gfx9_eop_bug_va);
686 radeon_emit(cs, gfx9_eop_bug_va >> 32);
687 }
688
689 radeon_emit(cs, PKT3(PKT3_RELEASE_MEM, is_gfx8_mec ? 5 : 6, false));
690 radeon_emit(cs, op);
691 radeon_emit(cs, sel);
692 radeon_emit(cs, va); /* address lo */
693 radeon_emit(cs, va >> 32); /* address hi */
694 radeon_emit(cs, new_fence); /* immediate data lo */
695 radeon_emit(cs, 0); /* immediate data hi */
696 if (!is_gfx8_mec)
697 radeon_emit(cs, 0); /* unused */
698 } else {
699 if (chip_class == CIK ||
700 chip_class == VI) {
701 /* Two EOP events are required to make all engines go idle
702 * (and optional cache flushes executed) before the timestamp
703 * is written.
704 */
705 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE_EOP, 4, false));
706 radeon_emit(cs, op);
707 radeon_emit(cs, va);
708 radeon_emit(cs, ((va >> 32) & 0xffff) | sel);
709 radeon_emit(cs, 0); /* immediate data */
710 radeon_emit(cs, 0); /* unused */
711 }
712
713 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE_EOP, 4, false));
714 radeon_emit(cs, op);
715 radeon_emit(cs, va);
716 radeon_emit(cs, ((va >> 32) & 0xffff) | sel);
717 radeon_emit(cs, new_fence); /* immediate data */
718 radeon_emit(cs, 0); /* unused */
719 }
720 }
721
722 void
723 radv_cp_wait_mem(struct radeon_cmdbuf *cs, uint32_t op, uint64_t va,
724 uint32_t ref, uint32_t mask)
725 {
726 assert(op == WAIT_REG_MEM_EQUAL ||
727 op == WAIT_REG_MEM_NOT_EQUAL ||
728 op == WAIT_REG_MEM_GREATER_OR_EQUAL);
729
730 radeon_emit(cs, PKT3(PKT3_WAIT_REG_MEM, 5, false));
731 radeon_emit(cs, op | WAIT_REG_MEM_MEM_SPACE(1));
732 radeon_emit(cs, va);
733 radeon_emit(cs, va >> 32);
734 radeon_emit(cs, ref); /* reference value */
735 radeon_emit(cs, mask); /* mask */
736 radeon_emit(cs, 4); /* poll interval */
737 }
738
739 static void
740 si_emit_acquire_mem(struct radeon_cmdbuf *cs,
741 bool is_mec,
742 bool is_gfx9,
743 unsigned cp_coher_cntl)
744 {
745 if (is_mec || is_gfx9) {
746 uint32_t hi_val = is_gfx9 ? 0xffffff : 0xff;
747 radeon_emit(cs, PKT3(PKT3_ACQUIRE_MEM, 5, false) |
748 PKT3_SHADER_TYPE_S(is_mec));
749 radeon_emit(cs, cp_coher_cntl); /* CP_COHER_CNTL */
750 radeon_emit(cs, 0xffffffff); /* CP_COHER_SIZE */
751 radeon_emit(cs, hi_val); /* CP_COHER_SIZE_HI */
752 radeon_emit(cs, 0); /* CP_COHER_BASE */
753 radeon_emit(cs, 0); /* CP_COHER_BASE_HI */
754 radeon_emit(cs, 0x0000000A); /* POLL_INTERVAL */
755 } else {
756 /* ACQUIRE_MEM is only required on a compute ring. */
757 radeon_emit(cs, PKT3(PKT3_SURFACE_SYNC, 3, false));
758 radeon_emit(cs, cp_coher_cntl); /* CP_COHER_CNTL */
759 radeon_emit(cs, 0xffffffff); /* CP_COHER_SIZE */
760 radeon_emit(cs, 0); /* CP_COHER_BASE */
761 radeon_emit(cs, 0x0000000A); /* POLL_INTERVAL */
762 }
763 }
764
765 void
766 si_cs_emit_cache_flush(struct radeon_cmdbuf *cs,
767 enum chip_class chip_class,
768 uint32_t *flush_cnt,
769 uint64_t flush_va,
770 bool is_mec,
771 enum radv_cmd_flush_bits flush_bits,
772 uint64_t gfx9_eop_bug_va)
773 {
774 unsigned cp_coher_cntl = 0;
775 uint32_t flush_cb_db = flush_bits & (RADV_CMD_FLAG_FLUSH_AND_INV_CB |
776 RADV_CMD_FLAG_FLUSH_AND_INV_DB);
777
778 if (flush_bits & RADV_CMD_FLAG_INV_ICACHE)
779 cp_coher_cntl |= S_0085F0_SH_ICACHE_ACTION_ENA(1);
780 if (flush_bits & RADV_CMD_FLAG_INV_SMEM_L1)
781 cp_coher_cntl |= S_0085F0_SH_KCACHE_ACTION_ENA(1);
782
783 if (chip_class <= VI) {
784 if (flush_bits & RADV_CMD_FLAG_FLUSH_AND_INV_CB) {
785 cp_coher_cntl |= S_0085F0_CB_ACTION_ENA(1) |
786 S_0085F0_CB0_DEST_BASE_ENA(1) |
787 S_0085F0_CB1_DEST_BASE_ENA(1) |
788 S_0085F0_CB2_DEST_BASE_ENA(1) |
789 S_0085F0_CB3_DEST_BASE_ENA(1) |
790 S_0085F0_CB4_DEST_BASE_ENA(1) |
791 S_0085F0_CB5_DEST_BASE_ENA(1) |
792 S_0085F0_CB6_DEST_BASE_ENA(1) |
793 S_0085F0_CB7_DEST_BASE_ENA(1);
794
795 /* Necessary for DCC */
796 if (chip_class >= VI) {
797 si_cs_emit_write_event_eop(cs,
798 chip_class,
799 is_mec,
800 V_028A90_FLUSH_AND_INV_CB_DATA_TS,
801 0,
802 EOP_DATA_SEL_DISCARD,
803 0, 0,
804 gfx9_eop_bug_va);
805 }
806 }
807 if (flush_bits & RADV_CMD_FLAG_FLUSH_AND_INV_DB) {
808 cp_coher_cntl |= S_0085F0_DB_ACTION_ENA(1) |
809 S_0085F0_DB_DEST_BASE_ENA(1);
810 }
811 }
812
813 if (flush_bits & RADV_CMD_FLAG_FLUSH_AND_INV_CB_META) {
814 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
815 radeon_emit(cs, EVENT_TYPE(V_028A90_FLUSH_AND_INV_CB_META) | EVENT_INDEX(0));
816 }
817
818 if (flush_bits & RADV_CMD_FLAG_FLUSH_AND_INV_DB_META) {
819 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
820 radeon_emit(cs, EVENT_TYPE(V_028A90_FLUSH_AND_INV_DB_META) | EVENT_INDEX(0));
821 }
822
823 if (flush_bits & RADV_CMD_FLAG_PS_PARTIAL_FLUSH) {
824 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
825 radeon_emit(cs, EVENT_TYPE(V_028A90_PS_PARTIAL_FLUSH) | EVENT_INDEX(4));
826 } else if (flush_bits & RADV_CMD_FLAG_VS_PARTIAL_FLUSH) {
827 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
828 radeon_emit(cs, EVENT_TYPE(V_028A90_VS_PARTIAL_FLUSH) | EVENT_INDEX(4));
829 }
830
831 if (flush_bits & RADV_CMD_FLAG_CS_PARTIAL_FLUSH) {
832 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
833 radeon_emit(cs, EVENT_TYPE(V_028A90_CS_PARTIAL_FLUSH) | EVENT_INDEX(4));
834 }
835
836 if (chip_class >= GFX9 && flush_cb_db) {
837 unsigned cb_db_event, tc_flags;
838
839 /* Set the CB/DB flush event. */
840 cb_db_event = V_028A90_CACHE_FLUSH_AND_INV_TS_EVENT;
841
842 /* These are the only allowed combinations. If you need to
843 * do multiple operations at once, do them separately.
844 * All operations that invalidate L2 also seem to invalidate
845 * metadata. Volatile (VOL) and WC flushes are not listed here.
846 *
847 * TC | TC_WB = writeback & invalidate L2 & L1
848 * TC | TC_WB | TC_NC = writeback & invalidate L2 for MTYPE == NC
849 * TC_WB | TC_NC = writeback L2 for MTYPE == NC
850 * TC | TC_NC = invalidate L2 for MTYPE == NC
851 * TC | TC_MD = writeback & invalidate L2 metadata (DCC, etc.)
852 * TCL1 = invalidate L1
853 */
854 tc_flags = EVENT_TC_ACTION_ENA |
855 EVENT_TC_MD_ACTION_ENA;
856
857 /* Ideally flush TC together with CB/DB. */
858 if (flush_bits & RADV_CMD_FLAG_INV_GLOBAL_L2) {
859 /* Writeback and invalidate everything in L2 & L1. */
860 tc_flags = EVENT_TC_ACTION_ENA |
861 EVENT_TC_WB_ACTION_ENA;
862
863
864 /* Clear the flags. */
865 flush_bits &= ~(RADV_CMD_FLAG_INV_GLOBAL_L2 |
866 RADV_CMD_FLAG_WRITEBACK_GLOBAL_L2 |
867 RADV_CMD_FLAG_INV_VMEM_L1);
868 }
869 assert(flush_cnt);
870 (*flush_cnt)++;
871
872 si_cs_emit_write_event_eop(cs, chip_class, false, cb_db_event, tc_flags,
873 EOP_DATA_SEL_VALUE_32BIT,
874 flush_va, *flush_cnt,
875 gfx9_eop_bug_va);
876 radv_cp_wait_mem(cs, WAIT_REG_MEM_EQUAL, flush_va,
877 *flush_cnt, 0xffffffff);
878 }
879
880 /* VGT state sync */
881 if (flush_bits & RADV_CMD_FLAG_VGT_FLUSH) {
882 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
883 radeon_emit(cs, EVENT_TYPE(V_028A90_VGT_FLUSH) | EVENT_INDEX(0));
884 }
885
886 /* VGT streamout state sync */
887 if (flush_bits & RADV_CMD_FLAG_VGT_STREAMOUT_SYNC) {
888 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
889 radeon_emit(cs, EVENT_TYPE(V_028A90_VGT_STREAMOUT_SYNC) | EVENT_INDEX(0));
890 }
891
892 /* Make sure ME is idle (it executes most packets) before continuing.
893 * This prevents read-after-write hazards between PFP and ME.
894 */
895 if ((cp_coher_cntl ||
896 (flush_bits & (RADV_CMD_FLAG_CS_PARTIAL_FLUSH |
897 RADV_CMD_FLAG_INV_VMEM_L1 |
898 RADV_CMD_FLAG_INV_GLOBAL_L2 |
899 RADV_CMD_FLAG_WRITEBACK_GLOBAL_L2))) &&
900 !is_mec) {
901 radeon_emit(cs, PKT3(PKT3_PFP_SYNC_ME, 0, 0));
902 radeon_emit(cs, 0);
903 }
904
905 if ((flush_bits & RADV_CMD_FLAG_INV_GLOBAL_L2) ||
906 (chip_class <= CIK && (flush_bits & RADV_CMD_FLAG_WRITEBACK_GLOBAL_L2))) {
907 si_emit_acquire_mem(cs, is_mec, chip_class >= GFX9,
908 cp_coher_cntl |
909 S_0085F0_TC_ACTION_ENA(1) |
910 S_0085F0_TCL1_ACTION_ENA(1) |
911 S_0301F0_TC_WB_ACTION_ENA(chip_class >= VI));
912 cp_coher_cntl = 0;
913 } else {
914 if(flush_bits & RADV_CMD_FLAG_WRITEBACK_GLOBAL_L2) {
915 /* WB = write-back
916 * NC = apply to non-coherent MTYPEs
917 * (i.e. MTYPE <= 1, which is what we use everywhere)
918 *
919 * WB doesn't work without NC.
920 */
921 si_emit_acquire_mem(cs, is_mec,
922 chip_class >= GFX9,
923 cp_coher_cntl |
924 S_0301F0_TC_WB_ACTION_ENA(1) |
925 S_0301F0_TC_NC_ACTION_ENA(1));
926 cp_coher_cntl = 0;
927 }
928 if (flush_bits & RADV_CMD_FLAG_INV_VMEM_L1) {
929 si_emit_acquire_mem(cs, is_mec,
930 chip_class >= GFX9,
931 cp_coher_cntl |
932 S_0085F0_TCL1_ACTION_ENA(1));
933 cp_coher_cntl = 0;
934 }
935 }
936
937 /* When one of the DEST_BASE flags is set, SURFACE_SYNC waits for idle.
938 * Therefore, it should be last. Done in PFP.
939 */
940 if (cp_coher_cntl)
941 si_emit_acquire_mem(cs, is_mec, chip_class >= GFX9, cp_coher_cntl);
942
943 if (flush_bits & RADV_CMD_FLAG_START_PIPELINE_STATS) {
944 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
945 radeon_emit(cs, EVENT_TYPE(V_028A90_PIPELINESTAT_START) |
946 EVENT_INDEX(0));
947 } else if (flush_bits & RADV_CMD_FLAG_STOP_PIPELINE_STATS) {
948 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
949 radeon_emit(cs, EVENT_TYPE(V_028A90_PIPELINESTAT_STOP) |
950 EVENT_INDEX(0));
951 }
952 }
953
954 void
955 si_emit_cache_flush(struct radv_cmd_buffer *cmd_buffer)
956 {
957 bool is_compute = cmd_buffer->queue_family_index == RADV_QUEUE_COMPUTE;
958
959 if (is_compute)
960 cmd_buffer->state.flush_bits &= ~(RADV_CMD_FLAG_FLUSH_AND_INV_CB |
961 RADV_CMD_FLAG_FLUSH_AND_INV_CB_META |
962 RADV_CMD_FLAG_FLUSH_AND_INV_DB |
963 RADV_CMD_FLAG_FLUSH_AND_INV_DB_META |
964 RADV_CMD_FLAG_PS_PARTIAL_FLUSH |
965 RADV_CMD_FLAG_VS_PARTIAL_FLUSH |
966 RADV_CMD_FLAG_VGT_FLUSH |
967 RADV_CMD_FLAG_START_PIPELINE_STATS |
968 RADV_CMD_FLAG_STOP_PIPELINE_STATS);
969
970 if (!cmd_buffer->state.flush_bits)
971 return;
972
973 radeon_check_space(cmd_buffer->device->ws, cmd_buffer->cs, 128);
974
975 si_cs_emit_cache_flush(cmd_buffer->cs,
976 cmd_buffer->device->physical_device->rad_info.chip_class,
977 &cmd_buffer->gfx9_fence_idx,
978 cmd_buffer->gfx9_fence_va,
979 radv_cmd_buffer_uses_mec(cmd_buffer),
980 cmd_buffer->state.flush_bits,
981 cmd_buffer->gfx9_eop_bug_va);
982
983
984 if (unlikely(cmd_buffer->device->trace_bo))
985 radv_cmd_buffer_trace_emit(cmd_buffer);
986
987 cmd_buffer->state.flush_bits = 0;
988
989 /* If the driver used a compute shader for resetting a query pool, it
990 * should be finished at this point.
991 */
992 cmd_buffer->pending_reset_query = false;
993 }
994
995 /* sets the CP predication state using a boolean stored at va */
996 void
997 si_emit_set_predication_state(struct radv_cmd_buffer *cmd_buffer,
998 bool draw_visible, uint64_t va)
999 {
1000 uint32_t op = 0;
1001
1002 if (va) {
1003 op = PRED_OP(PREDICATION_OP_BOOL64);
1004
1005 /* PREDICATION_DRAW_VISIBLE means that if the 32-bit value is
1006 * zero, all rendering commands are discarded. Otherwise, they
1007 * are discarded if the value is non zero.
1008 */
1009 op |= draw_visible ? PREDICATION_DRAW_VISIBLE :
1010 PREDICATION_DRAW_NOT_VISIBLE;
1011 }
1012 if (cmd_buffer->device->physical_device->rad_info.chip_class >= GFX9) {
1013 radeon_emit(cmd_buffer->cs, PKT3(PKT3_SET_PREDICATION, 2, 0));
1014 radeon_emit(cmd_buffer->cs, op);
1015 radeon_emit(cmd_buffer->cs, va);
1016 radeon_emit(cmd_buffer->cs, va >> 32);
1017 } else {
1018 radeon_emit(cmd_buffer->cs, PKT3(PKT3_SET_PREDICATION, 1, 0));
1019 radeon_emit(cmd_buffer->cs, va);
1020 radeon_emit(cmd_buffer->cs, op | ((va >> 32) & 0xFF));
1021 }
1022 }
1023
1024 /* Set this if you want the 3D engine to wait until CP DMA is done.
1025 * It should be set on the last CP DMA packet. */
1026 #define CP_DMA_SYNC (1 << 0)
1027
1028 /* Set this if the source data was used as a destination in a previous CP DMA
1029 * packet. It's for preventing a read-after-write (RAW) hazard between two
1030 * CP DMA packets. */
1031 #define CP_DMA_RAW_WAIT (1 << 1)
1032 #define CP_DMA_USE_L2 (1 << 2)
1033 #define CP_DMA_CLEAR (1 << 3)
1034
1035 /* Alignment for optimal performance. */
1036 #define SI_CPDMA_ALIGNMENT 32
1037
1038 /* The max number of bytes that can be copied per packet. */
1039 static inline unsigned cp_dma_max_byte_count(struct radv_cmd_buffer *cmd_buffer)
1040 {
1041 unsigned max = cmd_buffer->device->physical_device->rad_info.chip_class >= GFX9 ?
1042 S_414_BYTE_COUNT_GFX9(~0u) :
1043 S_414_BYTE_COUNT_GFX6(~0u);
1044
1045 /* make it aligned for optimal performance */
1046 return max & ~(SI_CPDMA_ALIGNMENT - 1);
1047 }
1048
1049 /* Emit a CP DMA packet to do a copy from one buffer to another, or to clear
1050 * a buffer. The size must fit in bits [20:0]. If CP_DMA_CLEAR is set, src_va is a 32-bit
1051 * clear value.
1052 */
1053 static void si_emit_cp_dma(struct radv_cmd_buffer *cmd_buffer,
1054 uint64_t dst_va, uint64_t src_va,
1055 unsigned size, unsigned flags)
1056 {
1057 struct radeon_cmdbuf *cs = cmd_buffer->cs;
1058 uint32_t header = 0, command = 0;
1059
1060 assert(size <= cp_dma_max_byte_count(cmd_buffer));
1061
1062 radeon_check_space(cmd_buffer->device->ws, cmd_buffer->cs, 9);
1063 if (cmd_buffer->device->physical_device->rad_info.chip_class >= GFX9)
1064 command |= S_414_BYTE_COUNT_GFX9(size);
1065 else
1066 command |= S_414_BYTE_COUNT_GFX6(size);
1067
1068 /* Sync flags. */
1069 if (flags & CP_DMA_SYNC)
1070 header |= S_411_CP_SYNC(1);
1071 else {
1072 if (cmd_buffer->device->physical_device->rad_info.chip_class >= GFX9)
1073 command |= S_414_DISABLE_WR_CONFIRM_GFX9(1);
1074 else
1075 command |= S_414_DISABLE_WR_CONFIRM_GFX6(1);
1076 }
1077
1078 if (flags & CP_DMA_RAW_WAIT)
1079 command |= S_414_RAW_WAIT(1);
1080
1081 /* Src and dst flags. */
1082 if (cmd_buffer->device->physical_device->rad_info.chip_class >= GFX9 &&
1083 !(flags & CP_DMA_CLEAR) &&
1084 src_va == dst_va)
1085 header |= S_411_DST_SEL(V_411_NOWHERE); /* prefetch only */
1086 else if (flags & CP_DMA_USE_L2)
1087 header |= S_411_DST_SEL(V_411_DST_ADDR_TC_L2);
1088
1089 if (flags & CP_DMA_CLEAR)
1090 header |= S_411_SRC_SEL(V_411_DATA);
1091 else if (flags & CP_DMA_USE_L2)
1092 header |= S_411_SRC_SEL(V_411_SRC_ADDR_TC_L2);
1093
1094 if (cmd_buffer->device->physical_device->rad_info.chip_class >= CIK) {
1095 radeon_emit(cs, PKT3(PKT3_DMA_DATA, 5, cmd_buffer->state.predicating));
1096 radeon_emit(cs, header);
1097 radeon_emit(cs, src_va); /* SRC_ADDR_LO [31:0] */
1098 radeon_emit(cs, src_va >> 32); /* SRC_ADDR_HI [31:0] */
1099 radeon_emit(cs, dst_va); /* DST_ADDR_LO [31:0] */
1100 radeon_emit(cs, dst_va >> 32); /* DST_ADDR_HI [31:0] */
1101 radeon_emit(cs, command);
1102 } else {
1103 assert(!(flags & CP_DMA_USE_L2));
1104 header |= S_411_SRC_ADDR_HI(src_va >> 32);
1105 radeon_emit(cs, PKT3(PKT3_CP_DMA, 4, cmd_buffer->state.predicating));
1106 radeon_emit(cs, src_va); /* SRC_ADDR_LO [31:0] */
1107 radeon_emit(cs, header); /* SRC_ADDR_HI [15:0] + flags. */
1108 radeon_emit(cs, dst_va); /* DST_ADDR_LO [31:0] */
1109 radeon_emit(cs, (dst_va >> 32) & 0xffff); /* DST_ADDR_HI [15:0] */
1110 radeon_emit(cs, command);
1111 }
1112
1113 /* CP DMA is executed in ME, but index buffers are read by PFP.
1114 * This ensures that ME (CP DMA) is idle before PFP starts fetching
1115 * indices. If we wanted to execute CP DMA in PFP, this packet
1116 * should precede it.
1117 */
1118 if (flags & CP_DMA_SYNC) {
1119 if (cmd_buffer->queue_family_index == RADV_QUEUE_GENERAL) {
1120 radeon_emit(cs, PKT3(PKT3_PFP_SYNC_ME, 0, cmd_buffer->state.predicating));
1121 radeon_emit(cs, 0);
1122 }
1123
1124 /* CP will see the sync flag and wait for all DMAs to complete. */
1125 cmd_buffer->state.dma_is_busy = false;
1126 }
1127
1128 if (unlikely(cmd_buffer->device->trace_bo))
1129 radv_cmd_buffer_trace_emit(cmd_buffer);
1130 }
1131
1132 void si_cp_dma_prefetch(struct radv_cmd_buffer *cmd_buffer, uint64_t va,
1133 unsigned size)
1134 {
1135 uint64_t aligned_va = va & ~(SI_CPDMA_ALIGNMENT - 1);
1136 uint64_t aligned_size = ((va + size + SI_CPDMA_ALIGNMENT -1) & ~(SI_CPDMA_ALIGNMENT - 1)) - aligned_va;
1137
1138 si_emit_cp_dma(cmd_buffer, aligned_va, aligned_va,
1139 aligned_size, CP_DMA_USE_L2);
1140 }
1141
1142 static void si_cp_dma_prepare(struct radv_cmd_buffer *cmd_buffer, uint64_t byte_count,
1143 uint64_t remaining_size, unsigned *flags)
1144 {
1145
1146 /* Flush the caches for the first copy only.
1147 * Also wait for the previous CP DMA operations.
1148 */
1149 if (cmd_buffer->state.flush_bits) {
1150 si_emit_cache_flush(cmd_buffer);
1151 *flags |= CP_DMA_RAW_WAIT;
1152 }
1153
1154 /* Do the synchronization after the last dma, so that all data
1155 * is written to memory.
1156 */
1157 if (byte_count == remaining_size)
1158 *flags |= CP_DMA_SYNC;
1159 }
1160
1161 static void si_cp_dma_realign_engine(struct radv_cmd_buffer *cmd_buffer, unsigned size)
1162 {
1163 uint64_t va;
1164 uint32_t offset;
1165 unsigned dma_flags = 0;
1166 unsigned buf_size = SI_CPDMA_ALIGNMENT * 2;
1167 void *ptr;
1168
1169 assert(size < SI_CPDMA_ALIGNMENT);
1170
1171 radv_cmd_buffer_upload_alloc(cmd_buffer, buf_size, SI_CPDMA_ALIGNMENT, &offset, &ptr);
1172
1173 va = radv_buffer_get_va(cmd_buffer->upload.upload_bo);
1174 va += offset;
1175
1176 si_cp_dma_prepare(cmd_buffer, size, size, &dma_flags);
1177
1178 si_emit_cp_dma(cmd_buffer, va, va + SI_CPDMA_ALIGNMENT, size,
1179 dma_flags);
1180 }
1181
1182 void si_cp_dma_buffer_copy(struct radv_cmd_buffer *cmd_buffer,
1183 uint64_t src_va, uint64_t dest_va,
1184 uint64_t size)
1185 {
1186 uint64_t main_src_va, main_dest_va;
1187 uint64_t skipped_size = 0, realign_size = 0;
1188
1189 /* Assume that we are not going to sync after the last DMA operation. */
1190 cmd_buffer->state.dma_is_busy = true;
1191
1192 if (cmd_buffer->device->physical_device->rad_info.family <= CHIP_CARRIZO ||
1193 cmd_buffer->device->physical_device->rad_info.family == CHIP_STONEY) {
1194 /* If the size is not aligned, we must add a dummy copy at the end
1195 * just to align the internal counter. Otherwise, the DMA engine
1196 * would slow down by an order of magnitude for following copies.
1197 */
1198 if (size % SI_CPDMA_ALIGNMENT)
1199 realign_size = SI_CPDMA_ALIGNMENT - (size % SI_CPDMA_ALIGNMENT);
1200
1201 /* If the copy begins unaligned, we must start copying from the next
1202 * aligned block and the skipped part should be copied after everything
1203 * else has been copied. Only the src alignment matters, not dst.
1204 */
1205 if (src_va % SI_CPDMA_ALIGNMENT) {
1206 skipped_size = SI_CPDMA_ALIGNMENT - (src_va % SI_CPDMA_ALIGNMENT);
1207 /* The main part will be skipped if the size is too small. */
1208 skipped_size = MIN2(skipped_size, size);
1209 size -= skipped_size;
1210 }
1211 }
1212 main_src_va = src_va + skipped_size;
1213 main_dest_va = dest_va + skipped_size;
1214
1215 while (size) {
1216 unsigned dma_flags = 0;
1217 unsigned byte_count = MIN2(size, cp_dma_max_byte_count(cmd_buffer));
1218
1219 si_cp_dma_prepare(cmd_buffer, byte_count,
1220 size + skipped_size + realign_size,
1221 &dma_flags);
1222
1223 dma_flags &= ~CP_DMA_SYNC;
1224
1225 si_emit_cp_dma(cmd_buffer, main_dest_va, main_src_va,
1226 byte_count, dma_flags);
1227
1228 size -= byte_count;
1229 main_src_va += byte_count;
1230 main_dest_va += byte_count;
1231 }
1232
1233 if (skipped_size) {
1234 unsigned dma_flags = 0;
1235
1236 si_cp_dma_prepare(cmd_buffer, skipped_size,
1237 size + skipped_size + realign_size,
1238 &dma_flags);
1239
1240 si_emit_cp_dma(cmd_buffer, dest_va, src_va,
1241 skipped_size, dma_flags);
1242 }
1243 if (realign_size)
1244 si_cp_dma_realign_engine(cmd_buffer, realign_size);
1245 }
1246
1247 void si_cp_dma_clear_buffer(struct radv_cmd_buffer *cmd_buffer, uint64_t va,
1248 uint64_t size, unsigned value)
1249 {
1250
1251 if (!size)
1252 return;
1253
1254 assert(va % 4 == 0 && size % 4 == 0);
1255
1256 /* Assume that we are not going to sync after the last DMA operation. */
1257 cmd_buffer->state.dma_is_busy = true;
1258
1259 while (size) {
1260 unsigned byte_count = MIN2(size, cp_dma_max_byte_count(cmd_buffer));
1261 unsigned dma_flags = CP_DMA_CLEAR;
1262
1263 si_cp_dma_prepare(cmd_buffer, byte_count, size, &dma_flags);
1264
1265 /* Emit the clear packet. */
1266 si_emit_cp_dma(cmd_buffer, va, value, byte_count,
1267 dma_flags);
1268
1269 size -= byte_count;
1270 va += byte_count;
1271 }
1272 }
1273
1274 void si_cp_dma_wait_for_idle(struct radv_cmd_buffer *cmd_buffer)
1275 {
1276 if (cmd_buffer->device->physical_device->rad_info.chip_class < CIK)
1277 return;
1278
1279 if (!cmd_buffer->state.dma_is_busy)
1280 return;
1281
1282 /* Issue a dummy DMA that copies zero bytes.
1283 *
1284 * The DMA engine will see that there's no work to do and skip this
1285 * DMA request, however, the CP will see the sync flag and still wait
1286 * for all DMAs to complete.
1287 */
1288 si_emit_cp_dma(cmd_buffer, 0, 0, 0, CP_DMA_SYNC);
1289
1290 cmd_buffer->state.dma_is_busy = false;
1291 }
1292
1293 /* For MSAA sample positions. */
1294 #define FILL_SREG(s0x, s0y, s1x, s1y, s2x, s2y, s3x, s3y) \
1295 (((s0x) & 0xf) | (((unsigned)(s0y) & 0xf) << 4) | \
1296 (((unsigned)(s1x) & 0xf) << 8) | (((unsigned)(s1y) & 0xf) << 12) | \
1297 (((unsigned)(s2x) & 0xf) << 16) | (((unsigned)(s2y) & 0xf) << 20) | \
1298 (((unsigned)(s3x) & 0xf) << 24) | (((unsigned)(s3y) & 0xf) << 28))
1299
1300
1301 /* 2xMSAA
1302 * There are two locations (4, 4), (-4, -4). */
1303 const uint32_t eg_sample_locs_2x[4] = {
1304 FILL_SREG(4, 4, -4, -4, 4, 4, -4, -4),
1305 FILL_SREG(4, 4, -4, -4, 4, 4, -4, -4),
1306 FILL_SREG(4, 4, -4, -4, 4, 4, -4, -4),
1307 FILL_SREG(4, 4, -4, -4, 4, 4, -4, -4),
1308 };
1309 const unsigned eg_max_dist_2x = 4;
1310 /* 4xMSAA
1311 * There are 4 locations: (-2, 6), (6, -2), (-6, 2), (2, 6). */
1312 const uint32_t eg_sample_locs_4x[4] = {
1313 FILL_SREG(-2, -6, 6, -2, -6, 2, 2, 6),
1314 FILL_SREG(-2, -6, 6, -2, -6, 2, 2, 6),
1315 FILL_SREG(-2, -6, 6, -2, -6, 2, 2, 6),
1316 FILL_SREG(-2, -6, 6, -2, -6, 2, 2, 6),
1317 };
1318 const unsigned eg_max_dist_4x = 6;
1319
1320 /* Cayman 8xMSAA */
1321 static const uint32_t cm_sample_locs_8x[] = {
1322 FILL_SREG( 1, -3, -1, 3, 5, 1, -3, -5),
1323 FILL_SREG( 1, -3, -1, 3, 5, 1, -3, -5),
1324 FILL_SREG( 1, -3, -1, 3, 5, 1, -3, -5),
1325 FILL_SREG( 1, -3, -1, 3, 5, 1, -3, -5),
1326 FILL_SREG(-5, 5, -7, -1, 3, 7, 7, -7),
1327 FILL_SREG(-5, 5, -7, -1, 3, 7, 7, -7),
1328 FILL_SREG(-5, 5, -7, -1, 3, 7, 7, -7),
1329 FILL_SREG(-5, 5, -7, -1, 3, 7, 7, -7),
1330 };
1331 static const unsigned cm_max_dist_8x = 8;
1332 /* Cayman 16xMSAA */
1333 static const uint32_t cm_sample_locs_16x[] = {
1334 FILL_SREG( 1, 1, -1, -3, -3, 2, 4, -1),
1335 FILL_SREG( 1, 1, -1, -3, -3, 2, 4, -1),
1336 FILL_SREG( 1, 1, -1, -3, -3, 2, 4, -1),
1337 FILL_SREG( 1, 1, -1, -3, -3, 2, 4, -1),
1338 FILL_SREG(-5, -2, 2, 5, 5, 3, 3, -5),
1339 FILL_SREG(-5, -2, 2, 5, 5, 3, 3, -5),
1340 FILL_SREG(-5, -2, 2, 5, 5, 3, 3, -5),
1341 FILL_SREG(-5, -2, 2, 5, 5, 3, 3, -5),
1342 FILL_SREG(-2, 6, 0, -7, -4, -6, -6, 4),
1343 FILL_SREG(-2, 6, 0, -7, -4, -6, -6, 4),
1344 FILL_SREG(-2, 6, 0, -7, -4, -6, -6, 4),
1345 FILL_SREG(-2, 6, 0, -7, -4, -6, -6, 4),
1346 FILL_SREG(-8, 0, 7, -4, 6, 7, -7, -8),
1347 FILL_SREG(-8, 0, 7, -4, 6, 7, -7, -8),
1348 FILL_SREG(-8, 0, 7, -4, 6, 7, -7, -8),
1349 FILL_SREG(-8, 0, 7, -4, 6, 7, -7, -8),
1350 };
1351 static const unsigned cm_max_dist_16x = 8;
1352
1353 unsigned radv_cayman_get_maxdist(int log_samples)
1354 {
1355 unsigned max_dist[] = {
1356 0,
1357 eg_max_dist_2x,
1358 eg_max_dist_4x,
1359 cm_max_dist_8x,
1360 cm_max_dist_16x
1361 };
1362 return max_dist[log_samples];
1363 }
1364
1365 void radv_cayman_emit_msaa_sample_locs(struct radeon_cmdbuf *cs, int nr_samples)
1366 {
1367 switch (nr_samples) {
1368 default:
1369 case 1:
1370 radeon_set_context_reg(cs, R_028BF8_PA_SC_AA_SAMPLE_LOCS_PIXEL_X0Y0_0, 0);
1371 radeon_set_context_reg(cs, R_028C08_PA_SC_AA_SAMPLE_LOCS_PIXEL_X1Y0_0, 0);
1372 radeon_set_context_reg(cs, R_028C18_PA_SC_AA_SAMPLE_LOCS_PIXEL_X0Y1_0, 0);
1373 radeon_set_context_reg(cs, R_028C28_PA_SC_AA_SAMPLE_LOCS_PIXEL_X1Y1_0, 0);
1374 break;
1375 case 2:
1376 radeon_set_context_reg(cs, R_028BF8_PA_SC_AA_SAMPLE_LOCS_PIXEL_X0Y0_0, eg_sample_locs_2x[0]);
1377 radeon_set_context_reg(cs, R_028C08_PA_SC_AA_SAMPLE_LOCS_PIXEL_X1Y0_0, eg_sample_locs_2x[1]);
1378 radeon_set_context_reg(cs, R_028C18_PA_SC_AA_SAMPLE_LOCS_PIXEL_X0Y1_0, eg_sample_locs_2x[2]);
1379 radeon_set_context_reg(cs, R_028C28_PA_SC_AA_SAMPLE_LOCS_PIXEL_X1Y1_0, eg_sample_locs_2x[3]);
1380 break;
1381 case 4:
1382 radeon_set_context_reg(cs, R_028BF8_PA_SC_AA_SAMPLE_LOCS_PIXEL_X0Y0_0, eg_sample_locs_4x[0]);
1383 radeon_set_context_reg(cs, R_028C08_PA_SC_AA_SAMPLE_LOCS_PIXEL_X1Y0_0, eg_sample_locs_4x[1]);
1384 radeon_set_context_reg(cs, R_028C18_PA_SC_AA_SAMPLE_LOCS_PIXEL_X0Y1_0, eg_sample_locs_4x[2]);
1385 radeon_set_context_reg(cs, R_028C28_PA_SC_AA_SAMPLE_LOCS_PIXEL_X1Y1_0, eg_sample_locs_4x[3]);
1386 break;
1387 case 8:
1388 radeon_set_context_reg_seq(cs, R_028BF8_PA_SC_AA_SAMPLE_LOCS_PIXEL_X0Y0_0, 14);
1389 radeon_emit(cs, cm_sample_locs_8x[0]);
1390 radeon_emit(cs, cm_sample_locs_8x[4]);
1391 radeon_emit(cs, 0);
1392 radeon_emit(cs, 0);
1393 radeon_emit(cs, cm_sample_locs_8x[1]);
1394 radeon_emit(cs, cm_sample_locs_8x[5]);
1395 radeon_emit(cs, 0);
1396 radeon_emit(cs, 0);
1397 radeon_emit(cs, cm_sample_locs_8x[2]);
1398 radeon_emit(cs, cm_sample_locs_8x[6]);
1399 radeon_emit(cs, 0);
1400 radeon_emit(cs, 0);
1401 radeon_emit(cs, cm_sample_locs_8x[3]);
1402 radeon_emit(cs, cm_sample_locs_8x[7]);
1403 break;
1404 case 16:
1405 radeon_set_context_reg_seq(cs, R_028BF8_PA_SC_AA_SAMPLE_LOCS_PIXEL_X0Y0_0, 16);
1406 radeon_emit(cs, cm_sample_locs_16x[0]);
1407 radeon_emit(cs, cm_sample_locs_16x[4]);
1408 radeon_emit(cs, cm_sample_locs_16x[8]);
1409 radeon_emit(cs, cm_sample_locs_16x[12]);
1410 radeon_emit(cs, cm_sample_locs_16x[1]);
1411 radeon_emit(cs, cm_sample_locs_16x[5]);
1412 radeon_emit(cs, cm_sample_locs_16x[9]);
1413 radeon_emit(cs, cm_sample_locs_16x[13]);
1414 radeon_emit(cs, cm_sample_locs_16x[2]);
1415 radeon_emit(cs, cm_sample_locs_16x[6]);
1416 radeon_emit(cs, cm_sample_locs_16x[10]);
1417 radeon_emit(cs, cm_sample_locs_16x[14]);
1418 radeon_emit(cs, cm_sample_locs_16x[3]);
1419 radeon_emit(cs, cm_sample_locs_16x[7]);
1420 radeon_emit(cs, cm_sample_locs_16x[11]);
1421 radeon_emit(cs, cm_sample_locs_16x[15]);
1422 break;
1423 }
1424 }
1425
1426 static void radv_cayman_get_sample_position(struct radv_device *device,
1427 unsigned sample_count,
1428 unsigned sample_index, float *out_value)
1429 {
1430 int offset, index;
1431 struct {
1432 int idx:4;
1433 } val;
1434 switch (sample_count) {
1435 case 1:
1436 default:
1437 out_value[0] = out_value[1] = 0.5;
1438 break;
1439 case 2:
1440 offset = 4 * (sample_index * 2);
1441 val.idx = (eg_sample_locs_2x[0] >> offset) & 0xf;
1442 out_value[0] = (float)(val.idx + 8) / 16.0f;
1443 val.idx = (eg_sample_locs_2x[0] >> (offset + 4)) & 0xf;
1444 out_value[1] = (float)(val.idx + 8) / 16.0f;
1445 break;
1446 case 4:
1447 offset = 4 * (sample_index * 2);
1448 val.idx = (eg_sample_locs_4x[0] >> offset) & 0xf;
1449 out_value[0] = (float)(val.idx + 8) / 16.0f;
1450 val.idx = (eg_sample_locs_4x[0] >> (offset + 4)) & 0xf;
1451 out_value[1] = (float)(val.idx + 8) / 16.0f;
1452 break;
1453 case 8:
1454 offset = 4 * (sample_index % 4 * 2);
1455 index = (sample_index / 4) * 4;
1456 val.idx = (cm_sample_locs_8x[index] >> offset) & 0xf;
1457 out_value[0] = (float)(val.idx + 8) / 16.0f;
1458 val.idx = (cm_sample_locs_8x[index] >> (offset + 4)) & 0xf;
1459 out_value[1] = (float)(val.idx + 8) / 16.0f;
1460 break;
1461 case 16:
1462 offset = 4 * (sample_index % 4 * 2);
1463 index = (sample_index / 4) * 4;
1464 val.idx = (cm_sample_locs_16x[index] >> offset) & 0xf;
1465 out_value[0] = (float)(val.idx + 8) / 16.0f;
1466 val.idx = (cm_sample_locs_16x[index] >> (offset + 4)) & 0xf;
1467 out_value[1] = (float)(val.idx + 8) / 16.0f;
1468 break;
1469 }
1470 }
1471
1472 void radv_device_init_msaa(struct radv_device *device)
1473 {
1474 int i;
1475 radv_cayman_get_sample_position(device, 1, 0, device->sample_locations_1x[0]);
1476
1477 for (i = 0; i < 2; i++)
1478 radv_cayman_get_sample_position(device, 2, i, device->sample_locations_2x[i]);
1479 for (i = 0; i < 4; i++)
1480 radv_cayman_get_sample_position(device, 4, i, device->sample_locations_4x[i]);
1481 for (i = 0; i < 8; i++)
1482 radv_cayman_get_sample_position(device, 8, i, device->sample_locations_8x[i]);
1483 for (i = 0; i < 16; i++)
1484 radv_cayman_get_sample_position(device, 16, i, device->sample_locations_16x[i]);
1485 }