projects / mesa.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
history | raw | HEAD
radeonsi/gfx9: draw changes
[mesa.git] / src / gallium / drivers / radeonsi / si_state_draw.c
1 /*
2 * Copyright 2012 Advanced Micro Devices, Inc.
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 * Christian König <christian.koenig@amd.com>
25 */
26
27 #include "si_pipe.h"
28 #include "radeon/r600_cs.h"
29 #include "sid.h"
30 #include "gfx9d.h"
31
32 #include "util/u_index_modify.h"
33 #include "util/u_upload_mgr.h"
34 #include "util/u_prim.h"
35
36 #include "ac_debug.h"
37
38 static unsigned si_conv_pipe_prim(unsigned mode)
39 {
40 static const unsigned prim_conv[] = {
41 [PIPE_PRIM_POINTS] = V_008958_DI_PT_POINTLIST,
42 [PIPE_PRIM_LINES] = V_008958_DI_PT_LINELIST,
43 [PIPE_PRIM_LINE_LOOP] = V_008958_DI_PT_LINELOOP,
44 [PIPE_PRIM_LINE_STRIP] = V_008958_DI_PT_LINESTRIP,
45 [PIPE_PRIM_TRIANGLES] = V_008958_DI_PT_TRILIST,
46 [PIPE_PRIM_TRIANGLE_STRIP] = V_008958_DI_PT_TRISTRIP,
47 [PIPE_PRIM_TRIANGLE_FAN] = V_008958_DI_PT_TRIFAN,
48 [PIPE_PRIM_QUADS] = V_008958_DI_PT_QUADLIST,
49 [PIPE_PRIM_QUAD_STRIP] = V_008958_DI_PT_QUADSTRIP,
50 [PIPE_PRIM_POLYGON] = V_008958_DI_PT_POLYGON,
51 [PIPE_PRIM_LINES_ADJACENCY] = V_008958_DI_PT_LINELIST_ADJ,
52 [PIPE_PRIM_LINE_STRIP_ADJACENCY] = V_008958_DI_PT_LINESTRIP_ADJ,
53 [PIPE_PRIM_TRIANGLES_ADJACENCY] = V_008958_DI_PT_TRILIST_ADJ,
54 [PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY] = V_008958_DI_PT_TRISTRIP_ADJ,
55 [PIPE_PRIM_PATCHES] = V_008958_DI_PT_PATCH,
56 [R600_PRIM_RECTANGLE_LIST] = V_008958_DI_PT_RECTLIST
57 };
58 assert(mode < ARRAY_SIZE(prim_conv));
59 return prim_conv[mode];
60 }
61
62 static unsigned si_conv_prim_to_gs_out(unsigned mode)
63 {
64 static const int prim_conv[] = {
65 [PIPE_PRIM_POINTS] = V_028A6C_OUTPRIM_TYPE_POINTLIST,
66 [PIPE_PRIM_LINES] = V_028A6C_OUTPRIM_TYPE_LINESTRIP,
67 [PIPE_PRIM_LINE_LOOP] = V_028A6C_OUTPRIM_TYPE_LINESTRIP,
68 [PIPE_PRIM_LINE_STRIP] = V_028A6C_OUTPRIM_TYPE_LINESTRIP,
69 [PIPE_PRIM_TRIANGLES] = V_028A6C_OUTPRIM_TYPE_TRISTRIP,
70 [PIPE_PRIM_TRIANGLE_STRIP] = V_028A6C_OUTPRIM_TYPE_TRISTRIP,
71 [PIPE_PRIM_TRIANGLE_FAN] = V_028A6C_OUTPRIM_TYPE_TRISTRIP,
72 [PIPE_PRIM_QUADS] = V_028A6C_OUTPRIM_TYPE_TRISTRIP,
73 [PIPE_PRIM_QUAD_STRIP] = V_028A6C_OUTPRIM_TYPE_TRISTRIP,
74 [PIPE_PRIM_POLYGON] = V_028A6C_OUTPRIM_TYPE_TRISTRIP,
75 [PIPE_PRIM_LINES_ADJACENCY] = V_028A6C_OUTPRIM_TYPE_LINESTRIP,
76 [PIPE_PRIM_LINE_STRIP_ADJACENCY] = V_028A6C_OUTPRIM_TYPE_LINESTRIP,
77 [PIPE_PRIM_TRIANGLES_ADJACENCY] = V_028A6C_OUTPRIM_TYPE_TRISTRIP,
78 [PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY] = V_028A6C_OUTPRIM_TYPE_TRISTRIP,
79 [PIPE_PRIM_PATCHES] = V_028A6C_OUTPRIM_TYPE_POINTLIST,
80 [R600_PRIM_RECTANGLE_LIST] = V_028A6C_OUTPRIM_TYPE_TRISTRIP
81 };
82 assert(mode < ARRAY_SIZE(prim_conv));
83
84 return prim_conv[mode];
85 }
86
87 /**
88 * This calculates the LDS size for tessellation shaders (VS, TCS, TES).
89 * LS.LDS_SIZE is shared by all 3 shader stages.
90 *
91 * The information about LDS and other non-compile-time parameters is then
92 * written to userdata SGPRs.
93 */
94 static void si_emit_derived_tess_state(struct si_context *sctx,
95 const struct pipe_draw_info *info,
96 unsigned *num_patches)
97 {
98 struct radeon_winsys_cs *cs = sctx->b.gfx.cs;
99 struct si_shader_ctx_state *ls = &sctx->vs_shader;
100 /* The TES pointer will only be used for sctx->last_tcs.
101 * It would be wrong to think that TCS = TES. */
102 struct si_shader_selector *tcs =
103 sctx->tcs_shader.cso ? sctx->tcs_shader.cso : sctx->tes_shader.cso;
104 unsigned tes_sh_base = sctx->shader_userdata.sh_base[PIPE_SHADER_TESS_EVAL];
105 unsigned num_tcs_input_cp = info->vertices_per_patch;
106 unsigned num_tcs_output_cp, num_tcs_inputs, num_tcs_outputs;
107 unsigned num_tcs_patch_outputs;
108 unsigned input_vertex_size, output_vertex_size, pervertex_output_patch_size;
109 unsigned input_patch_size, output_patch_size, output_patch0_offset;
110 unsigned perpatch_output_offset, lds_size, ls_rsrc2;
111 unsigned tcs_in_layout, tcs_out_layout, tcs_out_offsets;
112 unsigned offchip_layout, hardware_lds_size, ls_hs_config;
113
114 if (sctx->last_ls == ls->current &&
115 sctx->last_tcs == tcs &&
116 sctx->last_tes_sh_base == tes_sh_base &&
117 sctx->last_num_tcs_input_cp == num_tcs_input_cp) {
118 *num_patches = sctx->last_num_patches;
119 return;
120 }
121
122 sctx->last_ls = ls->current;
123 sctx->last_tcs = tcs;
124 sctx->last_tes_sh_base = tes_sh_base;
125 sctx->last_num_tcs_input_cp = num_tcs_input_cp;
126
127 /* This calculates how shader inputs and outputs among VS, TCS, and TES
128 * are laid out in LDS. */
129 num_tcs_inputs = util_last_bit64(ls->cso->outputs_written);
130
131 if (sctx->tcs_shader.cso) {
132 num_tcs_outputs = util_last_bit64(tcs->outputs_written);
133 num_tcs_output_cp = tcs->info.properties[TGSI_PROPERTY_TCS_VERTICES_OUT];
134 num_tcs_patch_outputs = util_last_bit64(tcs->patch_outputs_written);
135 } else {
136 /* No TCS. Route varyings from LS to TES. */
137 num_tcs_outputs = num_tcs_inputs;
138 num_tcs_output_cp = num_tcs_input_cp;
139 num_tcs_patch_outputs = 2; /* TESSINNER + TESSOUTER */
140 }
141
142 input_vertex_size = num_tcs_inputs * 16;
143 output_vertex_size = num_tcs_outputs * 16;
144
145 input_patch_size = num_tcs_input_cp * input_vertex_size;
146
147 pervertex_output_patch_size = num_tcs_output_cp * output_vertex_size;
148 output_patch_size = pervertex_output_patch_size + num_tcs_patch_outputs * 16;
149
150 /* Ensure that we only need one wave per SIMD so we don't need to check
151 * resource usage. Also ensures that the number of tcs in and out
152 * vertices per threadgroup are at most 256.
153 */
154 *num_patches = 64 / MAX2(num_tcs_input_cp, num_tcs_output_cp) * 4;
155
156 /* Make sure that the data fits in LDS. This assumes the shaders only
157 * use LDS for the inputs and outputs.
158 */
159 hardware_lds_size = sctx->b.chip_class >= CIK ? 65536 : 32768;
160 *num_patches = MIN2(*num_patches, hardware_lds_size / (input_patch_size +
161 output_patch_size));
162
163 /* Make sure the output data fits in the offchip buffer */
164 *num_patches = MIN2(*num_patches,
165 (sctx->screen->tess_offchip_block_dw_size * 4) /
166 output_patch_size);
167
168 /* Not necessary for correctness, but improves performance. The
169 * specific value is taken from the proprietary driver.
170 */
171 *num_patches = MIN2(*num_patches, 40);
172
173 /* SI bug workaround - limit LS-HS threadgroups to only one wave. */
174 if (sctx->b.chip_class == SI) {
175 unsigned one_wave = 64 / MAX2(num_tcs_input_cp, num_tcs_output_cp);
176 *num_patches = MIN2(*num_patches, one_wave);
177 }
178
179 sctx->last_num_patches = *num_patches;
180
181 output_patch0_offset = input_patch_size * *num_patches;
182 perpatch_output_offset = output_patch0_offset + pervertex_output_patch_size;
183
184 lds_size = output_patch0_offset + output_patch_size * *num_patches;
185 ls_rsrc2 = ls->current->config.rsrc2;
186
187 if (sctx->b.chip_class >= CIK) {
188 assert(lds_size <= 65536);
189 lds_size = align(lds_size, 512) / 512;
190 } else {
191 assert(lds_size <= 32768);
192 lds_size = align(lds_size, 256) / 256;
193 }
194 si_multiwave_lds_size_workaround(sctx->screen, &lds_size);
195 ls_rsrc2 |= S_00B52C_LDS_SIZE(lds_size);
196
197 /* Due to a hw bug, RSRC2_LS must be written twice with another
198 * LS register written in between. */
199 if (sctx->b.chip_class == CIK && sctx->b.family != CHIP_HAWAII)
200 radeon_set_sh_reg(cs, R_00B52C_SPI_SHADER_PGM_RSRC2_LS, ls_rsrc2);
201 radeon_set_sh_reg_seq(cs, R_00B528_SPI_SHADER_PGM_RSRC1_LS, 2);
202 radeon_emit(cs, ls->current->config.rsrc1);
203 radeon_emit(cs, ls_rsrc2);
204
205 /* Compute userdata SGPRs. */
206 assert(((input_vertex_size / 4) & ~0xff) == 0);
207 assert(((output_vertex_size / 4) & ~0xff) == 0);
208 assert(((input_patch_size / 4) & ~0x1fff) == 0);
209 assert(((output_patch_size / 4) & ~0x1fff) == 0);
210 assert(((output_patch0_offset / 16) & ~0xffff) == 0);
211 assert(((perpatch_output_offset / 16) & ~0xffff) == 0);
212 assert(num_tcs_input_cp <= 32);
213 assert(num_tcs_output_cp <= 32);
214
215 tcs_in_layout = (input_patch_size / 4) |
216 ((input_vertex_size / 4) << 13);
217 tcs_out_layout = (output_patch_size / 4) |
218 ((output_vertex_size / 4) << 13);
219 tcs_out_offsets = (output_patch0_offset / 16) |
220 ((perpatch_output_offset / 16) << 16);
221 offchip_layout = (pervertex_output_patch_size * *num_patches << 16) |
222 (num_tcs_output_cp << 9) | *num_patches;
223
224 /* Set them for LS. */
225 radeon_set_sh_reg(cs,
226 R_00B530_SPI_SHADER_USER_DATA_LS_0 + SI_SGPR_LS_OUT_LAYOUT * 4,
227 tcs_in_layout);
228
229 /* Set them for TCS. */
230 radeon_set_sh_reg_seq(cs,
231 R_00B430_SPI_SHADER_USER_DATA_HS_0 + SI_SGPR_TCS_OFFCHIP_LAYOUT * 4, 4);
232 radeon_emit(cs, offchip_layout);
233 radeon_emit(cs, tcs_out_offsets);
234 radeon_emit(cs, tcs_out_layout | (num_tcs_input_cp << 26));
235 radeon_emit(cs, tcs_in_layout);
236
237 /* Set them for TES. */
238 radeon_set_sh_reg_seq(cs, tes_sh_base + SI_SGPR_TCS_OFFCHIP_LAYOUT * 4, 1);
239 radeon_emit(cs, offchip_layout);
240
241 ls_hs_config = S_028B58_NUM_PATCHES(*num_patches) |
242 S_028B58_HS_NUM_INPUT_CP(num_tcs_input_cp) |
243 S_028B58_HS_NUM_OUTPUT_CP(num_tcs_output_cp);
244
245 if (sctx->b.chip_class >= CIK)
246 radeon_set_context_reg_idx(cs, R_028B58_VGT_LS_HS_CONFIG, 2,
247 ls_hs_config);
248 else
249 radeon_set_context_reg(cs, R_028B58_VGT_LS_HS_CONFIG,
250 ls_hs_config);
251 }
252
253 static unsigned si_num_prims_for_vertices(const struct pipe_draw_info *info)
254 {
255 switch (info->mode) {
256 case PIPE_PRIM_PATCHES:
257 return info->count / info->vertices_per_patch;
258 case R600_PRIM_RECTANGLE_LIST:
259 return info->count / 3;
260 default:
261 return u_prims_for_vertices(info->mode, info->count);
262 }
263 }
264
265 static unsigned
266 si_get_init_multi_vgt_param(struct si_screen *sscreen,
267 union si_vgt_param_key *key)
268 {
269 STATIC_ASSERT(sizeof(union si_vgt_param_key) == 4);
270 unsigned max_primgroup_in_wave = 2;
271
272 /* SWITCH_ON_EOP(0) is always preferable. */
273 bool wd_switch_on_eop = false;
274 bool ia_switch_on_eop = false;
275 bool ia_switch_on_eoi = false;
276 bool partial_vs_wave = false;
277 bool partial_es_wave = false;
278
279 if (key->u.uses_tess) {
280 /* SWITCH_ON_EOI must be set if PrimID is used. */
281 if (key->u.tcs_tes_uses_prim_id)
282 ia_switch_on_eoi = true;
283
284 /* Bug with tessellation and GS on Bonaire and older 2 SE chips. */
285 if ((sscreen->b.family == CHIP_TAHITI ||
286 sscreen->b.family == CHIP_PITCAIRN ||
287 sscreen->b.family == CHIP_BONAIRE) &&
288 key->u.uses_gs)
289 partial_vs_wave = true;
290
291 /* Needed for 028B6C_DISTRIBUTION_MODE != 0 */
292 if (sscreen->has_distributed_tess) {
293 if (key->u.uses_gs) {
294 partial_es_wave = true;
295
296 /* GPU hang workaround. */
297 if (sscreen->b.family == CHIP_TONGA ||
298 sscreen->b.family == CHIP_FIJI ||
299 sscreen->b.family == CHIP_POLARIS10 ||
300 sscreen->b.family == CHIP_POLARIS11)
301 partial_vs_wave = true;
302 } else {
303 partial_vs_wave = true;
304 }
305 }
306 }
307
308 /* This is a hardware requirement. */
309 if (key->u.line_stipple_enabled ||
310 (sscreen->b.debug_flags & DBG_SWITCH_ON_EOP)) {
311 ia_switch_on_eop = true;
312 wd_switch_on_eop = true;
313 }
314
315 if (sscreen->b.chip_class >= CIK) {
316 /* WD_SWITCH_ON_EOP has no effect on GPUs with less than
317 * 4 shader engines. Set 1 to pass the assertion below.
318 * The other cases are hardware requirements.
319 *
320 * Polaris supports primitive restart with WD_SWITCH_ON_EOP=0
321 * for points, line strips, and tri strips.
322 */
323 if (sscreen->b.info.max_se < 4 ||
324 key->u.prim == PIPE_PRIM_POLYGON ||
325 key->u.prim == PIPE_PRIM_LINE_LOOP ||
326 key->u.prim == PIPE_PRIM_TRIANGLE_FAN ||
327 key->u.prim == PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY ||
328 (key->u.primitive_restart &&
329 (sscreen->b.family < CHIP_POLARIS10 ||
330 (key->u.prim != PIPE_PRIM_POINTS &&
331 key->u.prim != PIPE_PRIM_LINE_STRIP &&
332 key->u.prim != PIPE_PRIM_TRIANGLE_STRIP))) ||
333 key->u.count_from_stream_output)
334 wd_switch_on_eop = true;
335
336 /* Hawaii hangs if instancing is enabled and WD_SWITCH_ON_EOP is 0.
337 * We don't know that for indirect drawing, so treat it as
338 * always problematic. */
339 if (sscreen->b.family == CHIP_HAWAII &&
340 key->u.uses_instancing)
341 wd_switch_on_eop = true;
342
343 /* Performance recommendation for 4 SE Gfx7-8 parts if
344 * instances are smaller than a primgroup.
345 * Assume indirect draws always use small instances.
346 * This is needed for good VS wave utilization.
347 */
348 if (sscreen->b.chip_class <= VI &&
349 sscreen->b.info.max_se == 4 &&
350 key->u.multi_instances_smaller_than_primgroup)
351 wd_switch_on_eop = true;
352
353 /* Required on CIK and later. */
354 if (sscreen->b.info.max_se > 2 && !wd_switch_on_eop)
355 ia_switch_on_eoi = true;
356
357 /* Required by Hawaii and, for some special cases, by VI. */
358 if (ia_switch_on_eoi &&
359 (sscreen->b.family == CHIP_HAWAII ||
360 (sscreen->b.chip_class == VI &&
361 (key->u.uses_gs || max_primgroup_in_wave != 2))))
362 partial_vs_wave = true;
363
364 /* Instancing bug on Bonaire. */
365 if (sscreen->b.family == CHIP_BONAIRE && ia_switch_on_eoi &&
366 key->u.uses_instancing)
367 partial_vs_wave = true;
368
369 /* If the WD switch is false, the IA switch must be false too. */
370 assert(wd_switch_on_eop || !ia_switch_on_eop);
371 }
372
373 /* If SWITCH_ON_EOI is set, PARTIAL_ES_WAVE must be set too. */
374 if (ia_switch_on_eoi)
375 partial_es_wave = true;
376
377 return S_028AA8_SWITCH_ON_EOP(ia_switch_on_eop) |
378 S_028AA8_SWITCH_ON_EOI(ia_switch_on_eoi) |
379 S_028AA8_PARTIAL_VS_WAVE_ON(partial_vs_wave) |
380 S_028AA8_PARTIAL_ES_WAVE_ON(partial_es_wave) |
381 S_028AA8_WD_SWITCH_ON_EOP(sscreen->b.chip_class >= CIK ? wd_switch_on_eop : 0) |
382 S_028AA8_MAX_PRIMGRP_IN_WAVE(sscreen->b.chip_class >= VI ?
383 max_primgroup_in_wave : 0) |
384 S_030960_EN_INST_OPT_BASIC(sscreen->b.chip_class >= GFX9) |
385 S_030960_EN_INST_OPT_ADV(sscreen->b.chip_class >= GFX9);
386 }
387
388 void si_init_ia_multi_vgt_param_table(struct si_context *sctx)
389 {
390 for (int prim = 0; prim <= R600_PRIM_RECTANGLE_LIST; prim++)
391 for (int uses_instancing = 0; uses_instancing < 2; uses_instancing++)
392 for (int multi_instances = 0; multi_instances < 2; multi_instances++)
393 for (int primitive_restart = 0; primitive_restart < 2; primitive_restart++)
394 for (int count_from_so = 0; count_from_so < 2; count_from_so++)
395 for (int line_stipple = 0; line_stipple < 2; line_stipple++)
396 for (int uses_tess = 0; uses_tess < 2; uses_tess++)
397 for (int tess_uses_primid = 0; tess_uses_primid < 2; tess_uses_primid++)
398 for (int uses_gs = 0; uses_gs < 2; uses_gs++) {
399 union si_vgt_param_key key;
400
401 key.index = 0;
402 key.u.prim = prim;
403 key.u.uses_instancing = uses_instancing;
404 key.u.multi_instances_smaller_than_primgroup = multi_instances;
405 key.u.primitive_restart = primitive_restart;
406 key.u.count_from_stream_output = count_from_so;
407 key.u.line_stipple_enabled = line_stipple;
408 key.u.uses_tess = uses_tess;
409 key.u.tcs_tes_uses_prim_id = tess_uses_primid;
410 key.u.uses_gs = uses_gs;
411
412 sctx->ia_multi_vgt_param[key.index] =
413 si_get_init_multi_vgt_param(sctx->screen, &key);
414 }
415 }
416
417 static unsigned si_get_ia_multi_vgt_param(struct si_context *sctx,
418 const struct pipe_draw_info *info,
419 unsigned num_patches)
420 {
421 union si_vgt_param_key key = sctx->ia_multi_vgt_param_key;
422 unsigned primgroup_size;
423 unsigned ia_multi_vgt_param;
424
425 if (sctx->tes_shader.cso) {
426 primgroup_size = num_patches; /* must be a multiple of NUM_PATCHES */
427 } else if (sctx->gs_shader.cso) {
428 primgroup_size = 64; /* recommended with a GS */
429 } else {
430 primgroup_size = 128; /* recommended without a GS and tess */
431 }
432
433 key.u.prim = info->mode;
434 key.u.uses_instancing = info->indirect || info->instance_count > 1;
435 key.u.multi_instances_smaller_than_primgroup =
436 info->indirect ||
437 (info->instance_count > 1 &&
438 (info->count_from_stream_output ||
439 si_num_prims_for_vertices(info) < primgroup_size));
440 key.u.primitive_restart = info->primitive_restart;
441 key.u.count_from_stream_output = info->count_from_stream_output != NULL;
442
443 ia_multi_vgt_param = sctx->ia_multi_vgt_param[key.index] |
444 S_028AA8_PRIMGROUP_SIZE(primgroup_size - 1);
445
446 if (sctx->gs_shader.cso) {
447 /* GS requirement. */
448 if (SI_GS_PER_ES / primgroup_size >= sctx->screen->gs_table_depth - 3)
449 ia_multi_vgt_param |= S_028AA8_PARTIAL_ES_WAVE_ON(1);
450
451 /* GS hw bug with single-primitive instances and SWITCH_ON_EOI.
452 * The hw doc says all multi-SE chips are affected, but Vulkan
453 * only applies it to Hawaii. Do what Vulkan does.
454 */
455 if (sctx->b.family == CHIP_HAWAII &&
456 G_028AA8_SWITCH_ON_EOI(ia_multi_vgt_param) &&
457 (info->indirect ||
458 (info->instance_count > 1 &&
459 (info->count_from_stream_output ||
460 si_num_prims_for_vertices(info) <= 1))))
461 sctx->b.flags |= SI_CONTEXT_VGT_FLUSH;
462 }
463
464 return ia_multi_vgt_param;
465 }
466
467 /* rast_prim is the primitive type after GS. */
468 static void si_emit_rasterizer_prim_state(struct si_context *sctx)
469 {
470 struct radeon_winsys_cs *cs = sctx->b.gfx.cs;
471 unsigned rast_prim = sctx->current_rast_prim;
472 struct si_state_rasterizer *rs = sctx->emitted.named.rasterizer;
473
474 /* Skip this if not rendering lines. */
475 if (rast_prim != PIPE_PRIM_LINES &&
476 rast_prim != PIPE_PRIM_LINE_LOOP &&
477 rast_prim != PIPE_PRIM_LINE_STRIP &&
478 rast_prim != PIPE_PRIM_LINES_ADJACENCY &&
479 rast_prim != PIPE_PRIM_LINE_STRIP_ADJACENCY)
480 return;
481
482 if (rast_prim == sctx->last_rast_prim &&
483 rs->pa_sc_line_stipple == sctx->last_sc_line_stipple)
484 return;
485
486 /* For lines, reset the stipple pattern at each primitive. Otherwise,
487 * reset the stipple pattern at each packet (line strips, line loops).
488 */
489 radeon_set_context_reg(cs, R_028A0C_PA_SC_LINE_STIPPLE,
490 rs->pa_sc_line_stipple |
491 S_028A0C_AUTO_RESET_CNTL(rast_prim == PIPE_PRIM_LINES ? 1 : 2));
492
493 sctx->last_rast_prim = rast_prim;
494 sctx->last_sc_line_stipple = rs->pa_sc_line_stipple;
495 }
496
497 static void si_emit_draw_registers(struct si_context *sctx,
498 const struct pipe_draw_info *info)
499 {
500 struct radeon_winsys_cs *cs = sctx->b.gfx.cs;
501 unsigned prim = si_conv_pipe_prim(info->mode);
502 unsigned gs_out_prim = si_conv_prim_to_gs_out(sctx->current_rast_prim);
503 unsigned ia_multi_vgt_param, num_patches = 0;
504
505 if (sctx->tes_shader.cso)
506 si_emit_derived_tess_state(sctx, info, &num_patches);
507
508 ia_multi_vgt_param = si_get_ia_multi_vgt_param(sctx, info, num_patches);
509
510 /* Draw state. */
511 if (ia_multi_vgt_param != sctx->last_multi_vgt_param) {
512 if (sctx->b.chip_class >= GFX9)
513 radeon_set_uconfig_reg_idx(cs, R_030960_IA_MULTI_VGT_PARAM, 4, ia_multi_vgt_param);
514 else if (sctx->b.chip_class >= CIK)
515 radeon_set_context_reg_idx(cs, R_028AA8_IA_MULTI_VGT_PARAM, 1, ia_multi_vgt_param);
516 else
517 radeon_set_context_reg(cs, R_028AA8_IA_MULTI_VGT_PARAM, ia_multi_vgt_param);
518
519 sctx->last_multi_vgt_param = ia_multi_vgt_param;
520 }
521 if (prim != sctx->last_prim) {
522 if (sctx->b.chip_class >= CIK)
523 radeon_set_uconfig_reg_idx(cs, R_030908_VGT_PRIMITIVE_TYPE, 1, prim);
524 else
525 radeon_set_config_reg(cs, R_008958_VGT_PRIMITIVE_TYPE, prim);
526
527 sctx->last_prim = prim;
528 }
529
530 if (gs_out_prim != sctx->last_gs_out_prim) {
531 radeon_set_context_reg(cs, R_028A6C_VGT_GS_OUT_PRIM_TYPE, gs_out_prim);
532 sctx->last_gs_out_prim = gs_out_prim;
533 }
534
535 /* Primitive restart. */
536 if (info->primitive_restart != sctx->last_primitive_restart_en) {
537 if (sctx->b.chip_class >= GFX9)
538 radeon_set_uconfig_reg(cs, R_03092C_VGT_MULTI_PRIM_IB_RESET_EN,
539 info->primitive_restart);
540 else
541 radeon_set_context_reg(cs, R_028A94_VGT_MULTI_PRIM_IB_RESET_EN,
542 info->primitive_restart);
543
544 sctx->last_primitive_restart_en = info->primitive_restart;
545
546 }
547 if (info->primitive_restart &&
548 (info->restart_index != sctx->last_restart_index ||
549 sctx->last_restart_index == SI_RESTART_INDEX_UNKNOWN)) {
550 radeon_set_context_reg(cs, R_02840C_VGT_MULTI_PRIM_IB_RESET_INDX,
551 info->restart_index);
552 sctx->last_restart_index = info->restart_index;
553 }
554 }
555
556 static void si_emit_draw_packets(struct si_context *sctx,
557 const struct pipe_draw_info *info,
558 const struct pipe_index_buffer *ib)
559 {
560 struct radeon_winsys_cs *cs = sctx->b.gfx.cs;
561 unsigned sh_base_reg = sctx->shader_userdata.sh_base[PIPE_SHADER_VERTEX];
562 bool render_cond_bit = sctx->b.render_cond && !sctx->b.render_cond_force_off;
563 uint32_t index_max_size = 0;
564 uint64_t index_va = 0;
565
566 if (info->count_from_stream_output) {
567 struct r600_so_target *t =
568 (struct r600_so_target*)info->count_from_stream_output;
569 uint64_t va = t->buf_filled_size->gpu_address +
570 t->buf_filled_size_offset;
571
572 radeon_set_context_reg(cs, R_028B30_VGT_STRMOUT_DRAW_OPAQUE_VERTEX_STRIDE,
573 t->stride_in_dw);
574
575 radeon_emit(cs, PKT3(PKT3_COPY_DATA, 4, 0));
576 radeon_emit(cs, COPY_DATA_SRC_SEL(COPY_DATA_MEM) |
577 COPY_DATA_DST_SEL(COPY_DATA_REG) |
578 COPY_DATA_WR_CONFIRM);
579 radeon_emit(cs, va); /* src address lo */
580 radeon_emit(cs, va >> 32); /* src address hi */
581 radeon_emit(cs, R_028B2C_VGT_STRMOUT_DRAW_OPAQUE_BUFFER_FILLED_SIZE >> 2);
582 radeon_emit(cs, 0); /* unused */
583
584 radeon_add_to_buffer_list(&sctx->b, &sctx->b.gfx,
585 t->buf_filled_size, RADEON_USAGE_READ,
586 RADEON_PRIO_SO_FILLED_SIZE);
587 }
588
589 /* draw packet */
590 if (info->indexed) {
591 if (ib->index_size != sctx->last_index_size) {
592 unsigned index_type;
593
594 /* index type */
595 switch (ib->index_size) {
596 case 1:
597 index_type = V_028A7C_VGT_INDEX_8;
598 break;
599 case 2:
600 index_type = V_028A7C_VGT_INDEX_16 |
601 (SI_BIG_ENDIAN && sctx->b.chip_class <= CIK ?
602 V_028A7C_VGT_DMA_SWAP_16_BIT : 0);
603 break;
604 case 4:
605 index_type = V_028A7C_VGT_INDEX_32 |
606 (SI_BIG_ENDIAN && sctx->b.chip_class <= CIK ?
607 V_028A7C_VGT_DMA_SWAP_32_BIT : 0);
608 break;
609 default:
610 assert(!"unreachable");
611 return;
612 }
613
614 if (sctx->b.chip_class >= GFX9) {
615 radeon_set_uconfig_reg_idx(cs, R_03090C_VGT_INDEX_TYPE,
616 2, index_type);
617 } else {
618 radeon_emit(cs, PKT3(PKT3_INDEX_TYPE, 0, 0));
619 radeon_emit(cs, index_type);
620 }
621
622 sctx->last_index_size = ib->index_size;
623 }
624
625 index_max_size = (ib->buffer->width0 - ib->offset) /
626 ib->index_size;
627 index_va = r600_resource(ib->buffer)->gpu_address + ib->offset;
628
629 radeon_add_to_buffer_list(&sctx->b, &sctx->b.gfx,
630 (struct r600_resource *)ib->buffer,
631 RADEON_USAGE_READ, RADEON_PRIO_INDEX_BUFFER);
632 } else {
633 /* On CI and later, non-indexed draws overwrite VGT_INDEX_TYPE,
634 * so the state must be re-emitted before the next indexed draw.
635 */
636 if (sctx->b.chip_class >= CIK)
637 sctx->last_index_size = -1;
638 }
639
640 if (!info->indirect) {
641 int base_vertex;
642
643 radeon_emit(cs, PKT3(PKT3_NUM_INSTANCES, 0, 0));
644 radeon_emit(cs, info->instance_count);
645
646 /* Base vertex and start instance. */
647 base_vertex = info->indexed ? info->index_bias : info->start;
648
649 if (base_vertex != sctx->last_base_vertex ||
650 sctx->last_base_vertex == SI_BASE_VERTEX_UNKNOWN ||
651 info->start_instance != sctx->last_start_instance ||
652 info->drawid != sctx->last_drawid ||
653 sh_base_reg != sctx->last_sh_base_reg) {
654 radeon_set_sh_reg_seq(cs, sh_base_reg + SI_SGPR_BASE_VERTEX * 4, 3);
655 radeon_emit(cs, base_vertex);
656 radeon_emit(cs, info->start_instance);
657 radeon_emit(cs, info->drawid);
658
659 sctx->last_base_vertex = base_vertex;
660 sctx->last_start_instance = info->start_instance;
661 sctx->last_drawid = info->drawid;
662 sctx->last_sh_base_reg = sh_base_reg;
663 }
664 } else {
665 uint64_t indirect_va = r600_resource(info->indirect)->gpu_address;
666
667 assert(indirect_va % 8 == 0);
668
669 si_invalidate_draw_sh_constants(sctx);
670
671 radeon_emit(cs, PKT3(PKT3_SET_BASE, 2, 0));
672 radeon_emit(cs, 1);
673 radeon_emit(cs, indirect_va);
674 radeon_emit(cs, indirect_va >> 32);
675
676 radeon_add_to_buffer_list(&sctx->b, &sctx->b.gfx,
677 (struct r600_resource *)info->indirect,
678 RADEON_USAGE_READ, RADEON_PRIO_DRAW_INDIRECT);
679 }
680
681 if (info->indirect) {
682 unsigned di_src_sel = info->indexed ? V_0287F0_DI_SRC_SEL_DMA
683 : V_0287F0_DI_SRC_SEL_AUTO_INDEX;
684
685 assert(info->indirect_offset % 4 == 0);
686
687 if (info->indexed) {
688 radeon_emit(cs, PKT3(PKT3_INDEX_BASE, 1, 0));
689 radeon_emit(cs, index_va);
690 radeon_emit(cs, index_va >> 32);
691
692 radeon_emit(cs, PKT3(PKT3_INDEX_BUFFER_SIZE, 0, 0));
693 radeon_emit(cs, index_max_size);
694 }
695
696 if (!sctx->screen->has_draw_indirect_multi) {
697 radeon_emit(cs, PKT3(info->indexed ? PKT3_DRAW_INDEX_INDIRECT
698 : PKT3_DRAW_INDIRECT,
699 3, render_cond_bit));
700 radeon_emit(cs, info->indirect_offset);
701 radeon_emit(cs, (sh_base_reg + SI_SGPR_BASE_VERTEX * 4 - SI_SH_REG_OFFSET) >> 2);
702 radeon_emit(cs, (sh_base_reg + SI_SGPR_START_INSTANCE * 4 - SI_SH_REG_OFFSET) >> 2);
703 radeon_emit(cs, di_src_sel);
704 } else {
705 uint64_t count_va = 0;
706
707 if (info->indirect_params) {
708 struct r600_resource *params_buf =
709 (struct r600_resource *)info->indirect_params;
710
711 radeon_add_to_buffer_list(
712 &sctx->b, &sctx->b.gfx, params_buf,
713 RADEON_USAGE_READ, RADEON_PRIO_DRAW_INDIRECT);
714
715 count_va = params_buf->gpu_address + info->indirect_params_offset;
716 }
717
718 radeon_emit(cs, PKT3(info->indexed ? PKT3_DRAW_INDEX_INDIRECT_MULTI :
719 PKT3_DRAW_INDIRECT_MULTI,
720 8, render_cond_bit));
721 radeon_emit(cs, info->indirect_offset);
722 radeon_emit(cs, (sh_base_reg + SI_SGPR_BASE_VERTEX * 4 - SI_SH_REG_OFFSET) >> 2);
723 radeon_emit(cs, (sh_base_reg + SI_SGPR_START_INSTANCE * 4 - SI_SH_REG_OFFSET) >> 2);
724 radeon_emit(cs, ((sh_base_reg + SI_SGPR_DRAWID * 4 - SI_SH_REG_OFFSET) >> 2) |
725 S_2C3_DRAW_INDEX_ENABLE(1) |
726 S_2C3_COUNT_INDIRECT_ENABLE(!!info->indirect_params));
727 radeon_emit(cs, info->indirect_count);
728 radeon_emit(cs, count_va);
729 radeon_emit(cs, count_va >> 32);
730 radeon_emit(cs, info->indirect_stride);
731 radeon_emit(cs, di_src_sel);
732 }
733 } else {
734 if (info->indexed) {
735 index_va += info->start * ib->index_size;
736
737 radeon_emit(cs, PKT3(PKT3_DRAW_INDEX_2, 4, render_cond_bit));
738 radeon_emit(cs, index_max_size);
739 radeon_emit(cs, index_va);
740 radeon_emit(cs, index_va >> 32);
741 radeon_emit(cs, info->count);
742 radeon_emit(cs, V_0287F0_DI_SRC_SEL_DMA);
743 } else {
744 radeon_emit(cs, PKT3(PKT3_DRAW_INDEX_AUTO, 1, render_cond_bit));
745 radeon_emit(cs, info->count);
746 radeon_emit(cs, V_0287F0_DI_SRC_SEL_AUTO_INDEX |
747 S_0287F0_USE_OPAQUE(!!info->count_from_stream_output));
748 }
749 }
750 }
751
752 static void si_emit_surface_sync(struct r600_common_context *rctx,
753 unsigned cp_coher_cntl)
754 {
755 struct radeon_winsys_cs *cs = rctx->gfx.cs;
756
757 /* ACQUIRE_MEM is only required on a compute ring. */
758 radeon_emit(cs, PKT3(PKT3_SURFACE_SYNC, 3, 0));
759 radeon_emit(cs, cp_coher_cntl); /* CP_COHER_CNTL */
760 radeon_emit(cs, 0xffffffff); /* CP_COHER_SIZE */
761 radeon_emit(cs, 0); /* CP_COHER_BASE */
762 radeon_emit(cs, 0x0000000A); /* POLL_INTERVAL */
763 }
764
765 void si_emit_cache_flush(struct si_context *sctx)
766 {
767 struct r600_common_context *rctx = &sctx->b;
768 struct radeon_winsys_cs *cs = rctx->gfx.cs;
769 uint32_t cp_coher_cntl = 0;
770
771 if (rctx->flags & (SI_CONTEXT_FLUSH_AND_INV_CB |
772 SI_CONTEXT_FLUSH_AND_INV_DB))
773 sctx->b.num_fb_cache_flushes++;
774
775 /* SI has a bug that it always flushes ICACHE and KCACHE if either
776 * bit is set. An alternative way is to write SQC_CACHES, but that
777 * doesn't seem to work reliably. Since the bug doesn't affect
778 * correctness (it only does more work than necessary) and
779 * the performance impact is likely negligible, there is no plan
780 * to add a workaround for it.
781 */
782
783 if (rctx->flags & SI_CONTEXT_INV_ICACHE)
784 cp_coher_cntl |= S_0085F0_SH_ICACHE_ACTION_ENA(1);
785 if (rctx->flags & SI_CONTEXT_INV_SMEM_L1)
786 cp_coher_cntl |= S_0085F0_SH_KCACHE_ACTION_ENA(1);
787
788 if (rctx->flags & SI_CONTEXT_FLUSH_AND_INV_CB) {
789 cp_coher_cntl |= S_0085F0_CB_ACTION_ENA(1) |
790 S_0085F0_CB0_DEST_BASE_ENA(1) |
791 S_0085F0_CB1_DEST_BASE_ENA(1) |
792 S_0085F0_CB2_DEST_BASE_ENA(1) |
793 S_0085F0_CB3_DEST_BASE_ENA(1) |
794 S_0085F0_CB4_DEST_BASE_ENA(1) |
795 S_0085F0_CB5_DEST_BASE_ENA(1) |
796 S_0085F0_CB6_DEST_BASE_ENA(1) |
797 S_0085F0_CB7_DEST_BASE_ENA(1);
798
799 /* Necessary for DCC */
800 if (rctx->chip_class == VI)
801 r600_gfx_write_event_eop(rctx, V_028A90_FLUSH_AND_INV_CB_DATA_TS,
802 0, 0, NULL, 0, 0, 0);
803
804 /* Flush CMASK/FMASK/DCC. SURFACE_SYNC will wait for idle. */
805 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
806 radeon_emit(cs, EVENT_TYPE(V_028A90_FLUSH_AND_INV_CB_META) | EVENT_INDEX(0));
807 }
808 if (rctx->flags & SI_CONTEXT_FLUSH_AND_INV_DB) {
809 cp_coher_cntl |= S_0085F0_DB_ACTION_ENA(1) |
810 S_0085F0_DB_DEST_BASE_ENA(1);
811
812 /* Flush HTILE. SURFACE_SYNC will wait for idle. */
813 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
814 radeon_emit(cs, EVENT_TYPE(V_028A90_FLUSH_AND_INV_DB_META) | EVENT_INDEX(0));
815 }
816
817 /* Wait for shader engines to go idle.
818 * VS and PS waits are unnecessary if SURFACE_SYNC is going to wait
819 * for everything including CB/DB cache flushes.
820 */
821 if (!(rctx->flags & (SI_CONTEXT_FLUSH_AND_INV_CB |
822 SI_CONTEXT_FLUSH_AND_INV_DB))) {
823 if (rctx->flags & SI_CONTEXT_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 /* Only count explicit shader flushes, not implicit ones
827 * done by SURFACE_SYNC.
828 */
829 rctx->num_vs_flushes++;
830 rctx->num_ps_flushes++;
831 } else if (rctx->flags & SI_CONTEXT_VS_PARTIAL_FLUSH) {
832 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
833 radeon_emit(cs, EVENT_TYPE(V_028A90_VS_PARTIAL_FLUSH) | EVENT_INDEX(4));
834 rctx->num_vs_flushes++;
835 }
836 }
837
838 if (rctx->flags & SI_CONTEXT_CS_PARTIAL_FLUSH &&
839 sctx->compute_is_busy) {
840 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
841 radeon_emit(cs, EVENT_TYPE(V_028A90_CS_PARTIAL_FLUSH | EVENT_INDEX(4)));
842 rctx->num_cs_flushes++;
843 sctx->compute_is_busy = false;
844 }
845
846 /* VGT state synchronization. */
847 if (rctx->flags & SI_CONTEXT_VGT_FLUSH) {
848 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
849 radeon_emit(cs, EVENT_TYPE(V_028A90_VGT_FLUSH) | EVENT_INDEX(0));
850 }
851 if (rctx->flags & SI_CONTEXT_VGT_STREAMOUT_SYNC) {
852 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
853 radeon_emit(cs, EVENT_TYPE(V_028A90_VGT_STREAMOUT_SYNC) | EVENT_INDEX(0));
854 }
855
856 /* Make sure ME is idle (it executes most packets) before continuing.
857 * This prevents read-after-write hazards between PFP and ME.
858 */
859 if (cp_coher_cntl ||
860 (rctx->flags & (SI_CONTEXT_CS_PARTIAL_FLUSH |
861 SI_CONTEXT_INV_VMEM_L1 |
862 SI_CONTEXT_INV_GLOBAL_L2 |
863 SI_CONTEXT_WRITEBACK_GLOBAL_L2))) {
864 radeon_emit(cs, PKT3(PKT3_PFP_SYNC_ME, 0, 0));
865 radeon_emit(cs, 0);
866 }
867
868 /* When one of the CP_COHER_CNTL.DEST_BASE flags is set, SURFACE_SYNC
869 * waits for idle. Therefore, it should be last. SURFACE_SYNC is done
870 * in PFP.
871 *
872 * cp_coher_cntl should contain all necessary flags except TC flags
873 * at this point.
874 *
875 * SI-CIK don't support L2 write-back.
876 */
877 if (rctx->flags & SI_CONTEXT_INV_GLOBAL_L2 ||
878 (rctx->chip_class <= CIK &&
879 (rctx->flags & SI_CONTEXT_WRITEBACK_GLOBAL_L2))) {
880 /* Invalidate L1 & L2. (L1 is always invalidated on SI)
881 * WB must be set on VI+ when TC_ACTION is set.
882 */
883 si_emit_surface_sync(rctx, cp_coher_cntl |
884 S_0085F0_TC_ACTION_ENA(1) |
885 S_0085F0_TCL1_ACTION_ENA(1) |
886 S_0301F0_TC_WB_ACTION_ENA(rctx->chip_class >= VI));
887 cp_coher_cntl = 0;
888 sctx->b.num_L2_invalidates++;
889 } else {
890 /* L1 invalidation and L2 writeback must be done separately,
891 * because both operations can't be done together.
892 */
893 if (rctx->flags & SI_CONTEXT_WRITEBACK_GLOBAL_L2) {
894 /* WB = write-back
895 * NC = apply to non-coherent MTYPEs
896 * (i.e. MTYPE <= 1, which is what we use everywhere)
897 *
898 * WB doesn't work without NC.
899 */
900 si_emit_surface_sync(rctx, cp_coher_cntl |
901 S_0301F0_TC_WB_ACTION_ENA(1) |
902 S_0301F0_TC_NC_ACTION_ENA(1));
903 cp_coher_cntl = 0;
904 sctx->b.num_L2_writebacks++;
905 }
906 if (rctx->flags & SI_CONTEXT_INV_VMEM_L1) {
907 /* Invalidate per-CU VMEM L1. */
908 si_emit_surface_sync(rctx, cp_coher_cntl |
909 S_0085F0_TCL1_ACTION_ENA(1));
910 cp_coher_cntl = 0;
911 }
912 }
913
914 /* If TC flushes haven't cleared this... */
915 if (cp_coher_cntl)
916 si_emit_surface_sync(rctx, cp_coher_cntl);
917
918 if (rctx->flags & R600_CONTEXT_START_PIPELINE_STATS) {
919 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
920 radeon_emit(cs, EVENT_TYPE(V_028A90_PIPELINESTAT_START) |
921 EVENT_INDEX(0));
922 } else if (rctx->flags & R600_CONTEXT_STOP_PIPELINE_STATS) {
923 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
924 radeon_emit(cs, EVENT_TYPE(V_028A90_PIPELINESTAT_STOP) |
925 EVENT_INDEX(0));
926 }
927
928 rctx->flags = 0;
929 }
930
931 static void si_get_draw_start_count(struct si_context *sctx,
932 const struct pipe_draw_info *info,
933 unsigned *start, unsigned *count)
934 {
935 if (info->indirect) {
936 unsigned indirect_count;
937 struct pipe_transfer *transfer;
938 unsigned begin, end;
939 unsigned map_size;
940 unsigned *data;
941
942 if (info->indirect_params) {
943 data = pipe_buffer_map_range(&sctx->b.b,
944 info->indirect_params,
945 info->indirect_params_offset,
946 sizeof(unsigned),
947 PIPE_TRANSFER_READ, &transfer);
948
949 indirect_count = *data;
950
951 pipe_buffer_unmap(&sctx->b.b, transfer);
952 } else {
953 indirect_count = info->indirect_count;
954 }
955
956 if (!indirect_count) {
957 *start = *count = 0;
958 return;
959 }
960
961 map_size = (indirect_count - 1) * info->indirect_stride + 3 * sizeof(unsigned);
962 data = pipe_buffer_map_range(&sctx->b.b, info->indirect,
963 info->indirect_offset, map_size,
964 PIPE_TRANSFER_READ, &transfer);
965
966 begin = UINT_MAX;
967 end = 0;
968
969 for (unsigned i = 0; i < indirect_count; ++i) {
970 unsigned count = data[0];
971 unsigned start = data[2];
972
973 if (count > 0) {
974 begin = MIN2(begin, start);
975 end = MAX2(end, start + count);
976 }
977
978 data += info->indirect_stride / sizeof(unsigned);
979 }
980
981 pipe_buffer_unmap(&sctx->b.b, transfer);
982
983 if (begin < end) {
984 *start = begin;
985 *count = end - begin;
986 } else {
987 *start = *count = 0;
988 }
989 } else {
990 *start = info->start;
991 *count = info->count;
992 }
993 }
994
995 void si_ce_pre_draw_synchronization(struct si_context *sctx)
996 {
997 if (sctx->ce_need_synchronization) {
998 radeon_emit(sctx->ce_ib, PKT3(PKT3_INCREMENT_CE_COUNTER, 0, 0));
999 radeon_emit(sctx->ce_ib, 1);
1000
1001 radeon_emit(sctx->b.gfx.cs, PKT3(PKT3_WAIT_ON_CE_COUNTER, 0, 0));
1002 radeon_emit(sctx->b.gfx.cs, 1);
1003 }
1004 }
1005
1006 void si_ce_post_draw_synchronization(struct si_context *sctx)
1007 {
1008 if (sctx->ce_need_synchronization) {
1009 radeon_emit(sctx->b.gfx.cs, PKT3(PKT3_INCREMENT_DE_COUNTER, 0, 0));
1010 radeon_emit(sctx->b.gfx.cs, 0);
1011
1012 sctx->ce_need_synchronization = false;
1013 }
1014 }
1015
1016 void si_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info *info)
1017 {
1018 struct si_context *sctx = (struct si_context *)ctx;
1019 struct si_state_rasterizer *rs = sctx->queued.named.rasterizer;
1020 struct pipe_index_buffer ib = {};
1021 unsigned mask, dirty_tex_counter, rast_prim;
1022
1023 if (likely(!info->indirect)) {
1024 /* SI-CI treat instance_count==0 as instance_count==1. There is
1025 * no workaround for indirect draws, but we can at least skip
1026 * direct draws.
1027 */
1028 if (unlikely(!info->instance_count))
1029 return;
1030
1031 /* Handle count == 0. */
1032 if (unlikely(!info->count &&
1033 (info->indexed || !info->count_from_stream_output)))
1034 return;
1035 }
1036
1037 if (unlikely(!sctx->vs_shader.cso)) {
1038 assert(0);
1039 return;
1040 }
1041 if (unlikely(!sctx->ps_shader.cso && (!rs || !rs->rasterizer_discard))) {
1042 assert(0);
1043 return;
1044 }
1045 if (unlikely(!!sctx->tes_shader.cso != (info->mode == PIPE_PRIM_PATCHES))) {
1046 assert(0);
1047 return;
1048 }
1049
1050 /* Recompute and re-emit the texture resource states if needed. */
1051 dirty_tex_counter = p_atomic_read(&sctx->b.screen->dirty_tex_counter);
1052 if (unlikely(dirty_tex_counter != sctx->b.last_dirty_tex_counter)) {
1053 sctx->b.last_dirty_tex_counter = dirty_tex_counter;
1054 sctx->framebuffer.dirty_cbufs |=
1055 ((1 << sctx->framebuffer.state.nr_cbufs) - 1);
1056 sctx->framebuffer.dirty_zsbuf = true;
1057 sctx->framebuffer.do_update_surf_dirtiness = true;
1058 si_mark_atom_dirty(sctx, &sctx->framebuffer.atom);
1059 si_update_all_texture_descriptors(sctx);
1060 }
1061
1062 si_decompress_graphics_textures(sctx);
1063
1064 /* Set the rasterization primitive type.
1065 *
1066 * This must be done after si_decompress_textures, which can call
1067 * draw_vbo recursively, and before si_update_shaders, which uses
1068 * current_rast_prim for this draw_vbo call. */
1069 if (sctx->gs_shader.cso)
1070 rast_prim = sctx->gs_shader.cso->gs_output_prim;
1071 else if (sctx->tes_shader.cso)
1072 rast_prim = sctx->tes_shader.cso->info.properties[TGSI_PROPERTY_TES_PRIM_MODE];
1073 else
1074 rast_prim = info->mode;
1075
1076 if (rast_prim != sctx->current_rast_prim) {
1077 sctx->current_rast_prim = rast_prim;
1078 sctx->do_update_shaders = true;
1079 }
1080
1081 if (sctx->gs_shader.cso) {
1082 /* Determine whether the GS triangle strip adjacency fix should
1083 * be applied. Rotate every other triangle if
1084 * - triangle strips with adjacency are fed to the GS and
1085 * - primitive restart is disabled (the rotation doesn't help
1086 * when the restart occurs after an odd number of triangles).
1087 */
1088 bool gs_tri_strip_adj_fix =
1089 !sctx->tes_shader.cso &&
1090 info->mode == PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY &&
1091 !info->primitive_restart;
1092
1093 if (gs_tri_strip_adj_fix != sctx->gs_tri_strip_adj_fix) {
1094 sctx->gs_tri_strip_adj_fix = gs_tri_strip_adj_fix;
1095 sctx->do_update_shaders = true;
1096 }
1097 }
1098
1099 if (sctx->do_update_shaders && !si_update_shaders(sctx))
1100 return;
1101
1102 if (!si_upload_graphics_shader_descriptors(sctx))
1103 return;
1104
1105 if (info->indexed) {
1106 /* Initialize the index buffer struct. */
1107 pipe_resource_reference(&ib.buffer, sctx->index_buffer.buffer);
1108 ib.user_buffer = sctx->index_buffer.user_buffer;
1109 ib.index_size = sctx->index_buffer.index_size;
1110 ib.offset = sctx->index_buffer.offset;
1111
1112 /* Translate or upload, if needed. */
1113 /* 8-bit indices are supported on VI. */
1114 if (sctx->b.chip_class <= CIK && ib.index_size == 1) {
1115 struct pipe_resource *out_buffer = NULL;
1116 unsigned out_offset, start, count, start_offset, size;
1117 void *ptr;
1118
1119 si_get_draw_start_count(sctx, info, &start, &count);
1120 start_offset = start * 2;
1121 size = count * 2;
1122
1123 u_upload_alloc(ctx->stream_uploader, start_offset,
1124 size,
1125 si_optimal_tcc_alignment(sctx, size),
1126 &out_offset, &out_buffer, &ptr);
1127 if (!out_buffer) {
1128 pipe_resource_reference(&ib.buffer, NULL);
1129 return;
1130 }
1131
1132 util_shorten_ubyte_elts_to_userptr(&sctx->b.b, &ib, 0, 0,
1133 ib.offset + start,
1134 count, ptr);
1135
1136 pipe_resource_reference(&ib.buffer, NULL);
1137 ib.user_buffer = NULL;
1138 ib.buffer = out_buffer;
1139 /* info->start will be added by the drawing code */
1140 ib.offset = out_offset - start_offset;
1141 ib.index_size = 2;
1142 } else if (ib.user_buffer && !ib.buffer) {
1143 unsigned start, count, start_offset;
1144
1145 si_get_draw_start_count(sctx, info, &start, &count);
1146 start_offset = start * ib.index_size;
1147
1148 u_upload_data(ctx->stream_uploader, start_offset,
1149 count * ib.index_size,
1150 sctx->screen->b.info.tcc_cache_line_size,
1151 (char*)ib.user_buffer + start_offset,
1152 &ib.offset, &ib.buffer);
1153 if (!ib.buffer)
1154 return;
1155 /* info->start will be added by the drawing code */
1156 ib.offset -= start_offset;
1157 } else if (sctx->b.chip_class <= CIK &&
1158 r600_resource(ib.buffer)->TC_L2_dirty) {
1159 /* VI reads index buffers through TC L2, so it doesn't
1160 * need this. */
1161 sctx->b.flags |= SI_CONTEXT_WRITEBACK_GLOBAL_L2;
1162 r600_resource(ib.buffer)->TC_L2_dirty = false;
1163 }
1164 }
1165
1166 if (info->indirect) {
1167 /* Add the buffer size for memory checking in need_cs_space. */
1168 r600_context_add_resource_size(ctx, info->indirect);
1169
1170 if (r600_resource(info->indirect)->TC_L2_dirty) {
1171 sctx->b.flags |= SI_CONTEXT_WRITEBACK_GLOBAL_L2;
1172 r600_resource(info->indirect)->TC_L2_dirty = false;
1173 }
1174
1175 if (info->indirect_params &&
1176 r600_resource(info->indirect_params)->TC_L2_dirty) {
1177 sctx->b.flags |= SI_CONTEXT_WRITEBACK_GLOBAL_L2;
1178 r600_resource(info->indirect_params)->TC_L2_dirty = false;
1179 }
1180 }
1181
1182 si_need_cs_space(sctx);
1183
1184 /* Since we've called r600_context_add_resource_size for vertex buffers,
1185 * this must be called after si_need_cs_space, because we must let
1186 * need_cs_space flush before we add buffers to the buffer list.
1187 */
1188 if (!si_upload_vertex_buffer_descriptors(sctx))
1189 return;
1190
1191 /* GFX9 scissor bug workaround. There is also a more efficient but
1192 * more involved alternative workaround. */
1193 if (sctx->b.chip_class == GFX9 &&
1194 si_is_atom_dirty(sctx, &sctx->b.scissors.atom))
1195 sctx->b.flags |= SI_CONTEXT_PS_PARTIAL_FLUSH;
1196
1197 /* Flush caches before the first state atom, which does L2 prefetches. */
1198 if (sctx->b.flags)
1199 si_emit_cache_flush(sctx);
1200
1201 /* Emit state atoms. */
1202 mask = sctx->dirty_atoms;
1203 while (mask) {
1204 struct r600_atom *atom = sctx->atoms.array[u_bit_scan(&mask)];
1205
1206 atom->emit(&sctx->b, atom);
1207 }
1208 sctx->dirty_atoms = 0;
1209
1210 /* Emit states. */
1211 mask = sctx->dirty_states;
1212 while (mask) {
1213 unsigned i = u_bit_scan(&mask);
1214 struct si_pm4_state *state = sctx->queued.array[i];
1215
1216 if (!state || sctx->emitted.array[i] == state)
1217 continue;
1218
1219 si_pm4_emit(sctx, state);
1220 sctx->emitted.array[i] = state;
1221 }
1222 sctx->dirty_states = 0;
1223
1224 si_emit_rasterizer_prim_state(sctx);
1225 si_emit_draw_registers(sctx, info);
1226
1227 si_ce_pre_draw_synchronization(sctx);
1228 si_emit_draw_packets(sctx, info, &ib);
1229 si_ce_post_draw_synchronization(sctx);
1230
1231 if (sctx->trace_buf)
1232 si_trace_emit(sctx);
1233
1234 /* Workaround for a VGT hang when streamout is enabled.
1235 * It must be done after drawing. */
1236 if ((sctx->b.family == CHIP_HAWAII ||
1237 sctx->b.family == CHIP_TONGA ||
1238 sctx->b.family == CHIP_FIJI) &&
1239 r600_get_strmout_en(&sctx->b)) {
1240 sctx->b.flags |= SI_CONTEXT_VGT_STREAMOUT_SYNC;
1241 }
1242
1243 if (sctx->framebuffer.do_update_surf_dirtiness) {
1244 /* Set the depth buffer as dirty. */
1245 if (sctx->framebuffer.state.zsbuf) {
1246 struct pipe_surface *surf = sctx->framebuffer.state.zsbuf;
1247 struct r600_texture *rtex = (struct r600_texture *)surf->texture;
1248
1249 if (!rtex->tc_compatible_htile)
1250 rtex->dirty_level_mask |= 1 << surf->u.tex.level;
1251
1252 if (rtex->surface.flags & RADEON_SURF_SBUFFER)
1253 rtex->stencil_dirty_level_mask |= 1 << surf->u.tex.level;
1254 }
1255 if (sctx->framebuffer.compressed_cb_mask) {
1256 struct pipe_surface *surf;
1257 struct r600_texture *rtex;
1258 unsigned mask = sctx->framebuffer.compressed_cb_mask;
1259
1260 do {
1261 unsigned i = u_bit_scan(&mask);
1262 surf = sctx->framebuffer.state.cbufs[i];
1263 rtex = (struct r600_texture*)surf->texture;
1264
1265 if (rtex->fmask.size)
1266 rtex->dirty_level_mask |= 1 << surf->u.tex.level;
1267 if (rtex->dcc_gather_statistics)
1268 rtex->separate_dcc_dirty = true;
1269 } while (mask);
1270 }
1271 sctx->framebuffer.do_update_surf_dirtiness = false;
1272 }
1273
1274 pipe_resource_reference(&ib.buffer, NULL);
1275 sctx->b.num_draw_calls++;
1276 if (G_0286E8_WAVESIZE(sctx->spi_tmpring_size))
1277 sctx->b.num_spill_draw_calls++;
1278 }
1279
1280 void si_trace_emit(struct si_context *sctx)
1281 {
1282 struct radeon_winsys_cs *cs = sctx->b.gfx.cs;
1283
1284 sctx->trace_id++;
1285 radeon_add_to_buffer_list(&sctx->b, &sctx->b.gfx, sctx->trace_buf,
1286 RADEON_USAGE_READWRITE, RADEON_PRIO_TRACE);
1287 radeon_emit(cs, PKT3(PKT3_WRITE_DATA, 3, 0));
1288 radeon_emit(cs, S_370_DST_SEL(V_370_MEMORY_SYNC) |
1289 S_370_WR_CONFIRM(1) |
1290 S_370_ENGINE_SEL(V_370_ME));
1291 radeon_emit(cs, sctx->trace_buf->gpu_address);
1292 radeon_emit(cs, sctx->trace_buf->gpu_address >> 32);
1293 radeon_emit(cs, sctx->trace_id);
1294 radeon_emit(cs, PKT3(PKT3_NOP, 0, 0));
1295 radeon_emit(cs, AC_ENCODE_TRACE_POINT(sctx->trace_id));
1296 }