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radeonsi/gfx10: implement Wave32
[mesa.git] / src / gallium / drivers / radeonsi / si_state_draw.c
1 /*
2 * Copyright 2012 Advanced Micro Devices, Inc.
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * on the rights to use, copy, modify, merge, publish, distribute, sub
9 * license, and/or sell copies of the Software, and to permit persons to whom
10 * the Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
22 * USE OR OTHER DEALINGS IN THE SOFTWARE.
23 */
24
25 #include "si_build_pm4.h"
26 #include "sid.h"
27
28 #include "util/u_index_modify.h"
29 #include "util/u_log.h"
30 #include "util/u_upload_mgr.h"
31 #include "util/u_prim.h"
32 #include "util/u_suballoc.h"
33
34 #include "ac_debug.h"
35
36 /* special primitive types */
37 #define SI_PRIM_RECTANGLE_LIST PIPE_PRIM_MAX
38
39 static unsigned si_conv_pipe_prim(unsigned mode)
40 {
41 static const unsigned prim_conv[] = {
42 [PIPE_PRIM_POINTS] = V_008958_DI_PT_POINTLIST,
43 [PIPE_PRIM_LINES] = V_008958_DI_PT_LINELIST,
44 [PIPE_PRIM_LINE_LOOP] = V_008958_DI_PT_LINELOOP,
45 [PIPE_PRIM_LINE_STRIP] = V_008958_DI_PT_LINESTRIP,
46 [PIPE_PRIM_TRIANGLES] = V_008958_DI_PT_TRILIST,
47 [PIPE_PRIM_TRIANGLE_STRIP] = V_008958_DI_PT_TRISTRIP,
48 [PIPE_PRIM_TRIANGLE_FAN] = V_008958_DI_PT_TRIFAN,
49 [PIPE_PRIM_QUADS] = V_008958_DI_PT_QUADLIST,
50 [PIPE_PRIM_QUAD_STRIP] = V_008958_DI_PT_QUADSTRIP,
51 [PIPE_PRIM_POLYGON] = V_008958_DI_PT_POLYGON,
52 [PIPE_PRIM_LINES_ADJACENCY] = V_008958_DI_PT_LINELIST_ADJ,
53 [PIPE_PRIM_LINE_STRIP_ADJACENCY] = V_008958_DI_PT_LINESTRIP_ADJ,
54 [PIPE_PRIM_TRIANGLES_ADJACENCY] = V_008958_DI_PT_TRILIST_ADJ,
55 [PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY] = V_008958_DI_PT_TRISTRIP_ADJ,
56 [PIPE_PRIM_PATCHES] = V_008958_DI_PT_PATCH,
57 [SI_PRIM_RECTANGLE_LIST] = V_008958_DI_PT_RECTLIST
58 };
59 assert(mode < ARRAY_SIZE(prim_conv));
60 return prim_conv[mode];
61 }
62
63 /**
64 * This calculates the LDS size for tessellation shaders (VS, TCS, TES).
65 * LS.LDS_SIZE is shared by all 3 shader stages.
66 *
67 * The information about LDS and other non-compile-time parameters is then
68 * written to userdata SGPRs.
69 */
70 static void si_emit_derived_tess_state(struct si_context *sctx,
71 const struct pipe_draw_info *info,
72 unsigned *num_patches)
73 {
74 struct radeon_cmdbuf *cs = sctx->gfx_cs;
75 struct si_shader *ls_current;
76 struct si_shader_selector *ls;
77 /* The TES pointer will only be used for sctx->last_tcs.
78 * It would be wrong to think that TCS = TES. */
79 struct si_shader_selector *tcs =
80 sctx->tcs_shader.cso ? sctx->tcs_shader.cso : sctx->tes_shader.cso;
81 unsigned tess_uses_primid = sctx->ia_multi_vgt_param_key.u.tess_uses_prim_id;
82 bool has_primid_instancing_bug = sctx->chip_class == GFX6 &&
83 sctx->screen->info.max_se == 1;
84 unsigned tes_sh_base = sctx->shader_pointers.sh_base[PIPE_SHADER_TESS_EVAL];
85 unsigned num_tcs_input_cp = info->vertices_per_patch;
86 unsigned num_tcs_output_cp, num_tcs_inputs, num_tcs_outputs;
87 unsigned num_tcs_patch_outputs;
88 unsigned input_vertex_size, output_vertex_size, pervertex_output_patch_size;
89 unsigned input_patch_size, output_patch_size, output_patch0_offset;
90 unsigned perpatch_output_offset, lds_size;
91 unsigned tcs_in_layout, tcs_out_layout, tcs_out_offsets;
92 unsigned offchip_layout, hardware_lds_size, ls_hs_config;
93
94 /* Since GFX9 has merged LS-HS in the TCS state, set LS = TCS. */
95 if (sctx->chip_class >= GFX9) {
96 if (sctx->tcs_shader.cso)
97 ls_current = sctx->tcs_shader.current;
98 else
99 ls_current = sctx->fixed_func_tcs_shader.current;
100
101 ls = ls_current->key.part.tcs.ls;
102 } else {
103 ls_current = sctx->vs_shader.current;
104 ls = sctx->vs_shader.cso;
105 }
106
107 if (sctx->last_ls == ls_current &&
108 sctx->last_tcs == tcs &&
109 sctx->last_tes_sh_base == tes_sh_base &&
110 sctx->last_num_tcs_input_cp == num_tcs_input_cp &&
111 (!has_primid_instancing_bug ||
112 (sctx->last_tess_uses_primid == tess_uses_primid))) {
113 *num_patches = sctx->last_num_patches;
114 return;
115 }
116
117 sctx->last_ls = ls_current;
118 sctx->last_tcs = tcs;
119 sctx->last_tes_sh_base = tes_sh_base;
120 sctx->last_num_tcs_input_cp = num_tcs_input_cp;
121 sctx->last_tess_uses_primid = tess_uses_primid;
122
123 /* This calculates how shader inputs and outputs among VS, TCS, and TES
124 * are laid out in LDS. */
125 num_tcs_inputs = util_last_bit64(ls->outputs_written);
126
127 if (sctx->tcs_shader.cso) {
128 num_tcs_outputs = util_last_bit64(tcs->outputs_written);
129 num_tcs_output_cp = tcs->info.properties[TGSI_PROPERTY_TCS_VERTICES_OUT];
130 num_tcs_patch_outputs = util_last_bit64(tcs->patch_outputs_written);
131 } else {
132 /* No TCS. Route varyings from LS to TES. */
133 num_tcs_outputs = num_tcs_inputs;
134 num_tcs_output_cp = num_tcs_input_cp;
135 num_tcs_patch_outputs = 2; /* TESSINNER + TESSOUTER */
136 }
137
138 input_vertex_size = ls->lshs_vertex_stride;
139 output_vertex_size = num_tcs_outputs * 16;
140
141 input_patch_size = num_tcs_input_cp * input_vertex_size;
142
143 pervertex_output_patch_size = num_tcs_output_cp * output_vertex_size;
144 output_patch_size = pervertex_output_patch_size + num_tcs_patch_outputs * 16;
145
146 /* Ensure that we only need one wave per SIMD so we don't need to check
147 * resource usage. Also ensures that the number of tcs in and out
148 * vertices per threadgroup are at most 256.
149 */
150 unsigned max_verts_per_patch = MAX2(num_tcs_input_cp, num_tcs_output_cp);
151 *num_patches = 256 / max_verts_per_patch;
152
153 /* Make sure that the data fits in LDS. This assumes the shaders only
154 * use LDS for the inputs and outputs.
155 *
156 * While GFX7 can use 64K per threadgroup, there is a hang on Stoney
157 * with 2 CUs if we use more than 32K. The closed Vulkan driver also
158 * uses 32K at most on all GCN chips.
159 */
160 hardware_lds_size = 32768;
161 *num_patches = MIN2(*num_patches, hardware_lds_size / (input_patch_size +
162 output_patch_size));
163
164 /* Make sure the output data fits in the offchip buffer */
165 *num_patches = MIN2(*num_patches,
166 (sctx->screen->tess_offchip_block_dw_size * 4) /
167 output_patch_size);
168
169 /* Not necessary for correctness, but improves performance.
170 * The hardware can do more, but the radeonsi shader constant is
171 * limited to 6 bits.
172 */
173 *num_patches = MIN2(*num_patches, 63); /* triangles: 3 full waves except 3 lanes */
174
175 /* When distributed tessellation is unsupported, switch between SEs
176 * at a higher frequency to compensate for it.
177 */
178 if (!sctx->screen->has_distributed_tess && sctx->screen->info.max_se > 1)
179 *num_patches = MIN2(*num_patches, 16); /* recommended */
180
181 /* Make sure that vector lanes are reasonably occupied. It probably
182 * doesn't matter much because this is LS-HS, and TES is likely to
183 * occupy significantly more CUs.
184 */
185 unsigned temp_verts_per_tg = *num_patches * max_verts_per_patch;
186 unsigned wave_size = sctx->screen->ge_wave_size;
187
188 if (temp_verts_per_tg > wave_size && temp_verts_per_tg % wave_size < wave_size*3/4)
189 *num_patches = (temp_verts_per_tg & ~(wave_size - 1)) / max_verts_per_patch;
190
191 if (sctx->chip_class == GFX6) {
192 /* GFX6 bug workaround, related to power management. Limit LS-HS
193 * threadgroups to only one wave.
194 */
195 unsigned one_wave = wave_size / max_verts_per_patch;
196 *num_patches = MIN2(*num_patches, one_wave);
197 }
198
199 /* The VGT HS block increments the patch ID unconditionally
200 * within a single threadgroup. This results in incorrect
201 * patch IDs when instanced draws are used.
202 *
203 * The intended solution is to restrict threadgroups to
204 * a single instance by setting SWITCH_ON_EOI, which
205 * should cause IA to split instances up. However, this
206 * doesn't work correctly on GFX6 when there is no other
207 * SE to switch to.
208 */
209 if (has_primid_instancing_bug && tess_uses_primid)
210 *num_patches = 1;
211
212 sctx->last_num_patches = *num_patches;
213
214 output_patch0_offset = input_patch_size * *num_patches;
215 perpatch_output_offset = output_patch0_offset + pervertex_output_patch_size;
216
217 /* Compute userdata SGPRs. */
218 assert(((input_vertex_size / 4) & ~0xff) == 0);
219 assert(((output_vertex_size / 4) & ~0xff) == 0);
220 assert(((input_patch_size / 4) & ~0x1fff) == 0);
221 assert(((output_patch_size / 4) & ~0x1fff) == 0);
222 assert(((output_patch0_offset / 16) & ~0xffff) == 0);
223 assert(((perpatch_output_offset / 16) & ~0xffff) == 0);
224 assert(num_tcs_input_cp <= 32);
225 assert(num_tcs_output_cp <= 32);
226
227 uint64_t ring_va = si_resource(sctx->tess_rings)->gpu_address;
228 assert((ring_va & u_bit_consecutive(0, 19)) == 0);
229
230 tcs_in_layout = S_VS_STATE_LS_OUT_PATCH_SIZE(input_patch_size / 4) |
231 S_VS_STATE_LS_OUT_VERTEX_SIZE(input_vertex_size / 4);
232 tcs_out_layout = (output_patch_size / 4) |
233 (num_tcs_input_cp << 13) |
234 ring_va;
235 tcs_out_offsets = (output_patch0_offset / 16) |
236 ((perpatch_output_offset / 16) << 16);
237 offchip_layout = *num_patches |
238 (num_tcs_output_cp << 6) |
239 (pervertex_output_patch_size * *num_patches << 12);
240
241 /* Compute the LDS size. */
242 lds_size = output_patch0_offset + output_patch_size * *num_patches;
243
244 if (sctx->chip_class >= GFX7) {
245 assert(lds_size <= 65536);
246 lds_size = align(lds_size, 512) / 512;
247 } else {
248 assert(lds_size <= 32768);
249 lds_size = align(lds_size, 256) / 256;
250 }
251
252 /* Set SI_SGPR_VS_STATE_BITS. */
253 sctx->current_vs_state &= C_VS_STATE_LS_OUT_PATCH_SIZE &
254 C_VS_STATE_LS_OUT_VERTEX_SIZE;
255 sctx->current_vs_state |= tcs_in_layout;
256
257 /* We should be able to support in-shader LDS use with LLVM >= 9
258 * by just adding the lds_sizes together, but it has never
259 * been tested. */
260 assert(ls_current->config.lds_size == 0);
261
262 if (sctx->chip_class >= GFX9) {
263 unsigned hs_rsrc2 = ls_current->config.rsrc2;
264
265 if (sctx->chip_class >= GFX10)
266 hs_rsrc2 |= S_00B42C_LDS_SIZE_GFX10(lds_size);
267 else
268 hs_rsrc2 |= S_00B42C_LDS_SIZE_GFX9(lds_size);
269
270 radeon_set_sh_reg(cs, R_00B42C_SPI_SHADER_PGM_RSRC2_HS, hs_rsrc2);
271
272 /* Set userdata SGPRs for merged LS-HS. */
273 radeon_set_sh_reg_seq(cs,
274 R_00B430_SPI_SHADER_USER_DATA_LS_0 +
275 GFX9_SGPR_TCS_OFFCHIP_LAYOUT * 4, 3);
276 radeon_emit(cs, offchip_layout);
277 radeon_emit(cs, tcs_out_offsets);
278 radeon_emit(cs, tcs_out_layout);
279 } else {
280 unsigned ls_rsrc2 = ls_current->config.rsrc2;
281
282 si_multiwave_lds_size_workaround(sctx->screen, &lds_size);
283 ls_rsrc2 |= S_00B52C_LDS_SIZE(lds_size);
284
285 /* Due to a hw bug, RSRC2_LS must be written twice with another
286 * LS register written in between. */
287 if (sctx->chip_class == GFX7 && sctx->family != CHIP_HAWAII)
288 radeon_set_sh_reg(cs, R_00B52C_SPI_SHADER_PGM_RSRC2_LS, ls_rsrc2);
289 radeon_set_sh_reg_seq(cs, R_00B528_SPI_SHADER_PGM_RSRC1_LS, 2);
290 radeon_emit(cs, ls_current->config.rsrc1);
291 radeon_emit(cs, ls_rsrc2);
292
293 /* Set userdata SGPRs for TCS. */
294 radeon_set_sh_reg_seq(cs,
295 R_00B430_SPI_SHADER_USER_DATA_HS_0 + GFX6_SGPR_TCS_OFFCHIP_LAYOUT * 4, 4);
296 radeon_emit(cs, offchip_layout);
297 radeon_emit(cs, tcs_out_offsets);
298 radeon_emit(cs, tcs_out_layout);
299 radeon_emit(cs, tcs_in_layout);
300 }
301
302 /* Set userdata SGPRs for TES. */
303 radeon_set_sh_reg_seq(cs, tes_sh_base + SI_SGPR_TES_OFFCHIP_LAYOUT * 4, 2);
304 radeon_emit(cs, offchip_layout);
305 radeon_emit(cs, ring_va);
306
307 ls_hs_config = S_028B58_NUM_PATCHES(*num_patches) |
308 S_028B58_HS_NUM_INPUT_CP(num_tcs_input_cp) |
309 S_028B58_HS_NUM_OUTPUT_CP(num_tcs_output_cp);
310
311 if (sctx->last_ls_hs_config != ls_hs_config) {
312 if (sctx->chip_class >= GFX7) {
313 radeon_set_context_reg_idx(cs, R_028B58_VGT_LS_HS_CONFIG, 2,
314 ls_hs_config);
315 } else {
316 radeon_set_context_reg(cs, R_028B58_VGT_LS_HS_CONFIG,
317 ls_hs_config);
318 }
319 sctx->last_ls_hs_config = ls_hs_config;
320 sctx->context_roll = true;
321 }
322 }
323
324 static unsigned si_num_prims_for_vertices(const struct pipe_draw_info *info,
325 enum pipe_prim_type prim)
326 {
327 switch (prim) {
328 case PIPE_PRIM_PATCHES:
329 return info->count / info->vertices_per_patch;
330 case PIPE_PRIM_POLYGON:
331 return info->count >= 3;
332 case SI_PRIM_RECTANGLE_LIST:
333 return info->count / 3;
334 default:
335 return u_decomposed_prims_for_vertices(prim, info->count);
336 }
337 }
338
339 static unsigned
340 si_get_init_multi_vgt_param(struct si_screen *sscreen,
341 union si_vgt_param_key *key)
342 {
343 STATIC_ASSERT(sizeof(union si_vgt_param_key) == 4);
344 unsigned max_primgroup_in_wave = 2;
345
346 /* SWITCH_ON_EOP(0) is always preferable. */
347 bool wd_switch_on_eop = false;
348 bool ia_switch_on_eop = false;
349 bool ia_switch_on_eoi = false;
350 bool partial_vs_wave = false;
351 bool partial_es_wave = false;
352
353 if (key->u.uses_tess) {
354 /* SWITCH_ON_EOI must be set if PrimID is used. */
355 if (key->u.tess_uses_prim_id)
356 ia_switch_on_eoi = true;
357
358 /* Bug with tessellation and GS on Bonaire and older 2 SE chips. */
359 if ((sscreen->info.family == CHIP_TAHITI ||
360 sscreen->info.family == CHIP_PITCAIRN ||
361 sscreen->info.family == CHIP_BONAIRE) &&
362 key->u.uses_gs)
363 partial_vs_wave = true;
364
365 /* Needed for 028B6C_DISTRIBUTION_MODE != 0. (implies >= GFX8) */
366 if (sscreen->has_distributed_tess) {
367 if (key->u.uses_gs) {
368 if (sscreen->info.chip_class == GFX8)
369 partial_es_wave = true;
370 } else {
371 partial_vs_wave = true;
372 }
373 }
374 }
375
376 /* This is a hardware requirement. */
377 if (key->u.line_stipple_enabled ||
378 (sscreen->debug_flags & DBG(SWITCH_ON_EOP))) {
379 ia_switch_on_eop = true;
380 wd_switch_on_eop = true;
381 }
382
383 if (sscreen->info.chip_class >= GFX7) {
384 /* WD_SWITCH_ON_EOP has no effect on GPUs with less than
385 * 4 shader engines. Set 1 to pass the assertion below.
386 * The other cases are hardware requirements.
387 *
388 * Polaris supports primitive restart with WD_SWITCH_ON_EOP=0
389 * for points, line strips, and tri strips.
390 */
391 if (sscreen->info.max_se <= 2 ||
392 key->u.prim == PIPE_PRIM_POLYGON ||
393 key->u.prim == PIPE_PRIM_LINE_LOOP ||
394 key->u.prim == PIPE_PRIM_TRIANGLE_FAN ||
395 key->u.prim == PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY ||
396 (key->u.primitive_restart &&
397 (sscreen->info.family < CHIP_POLARIS10 ||
398 (key->u.prim != PIPE_PRIM_POINTS &&
399 key->u.prim != PIPE_PRIM_LINE_STRIP &&
400 key->u.prim != PIPE_PRIM_TRIANGLE_STRIP))) ||
401 key->u.count_from_stream_output)
402 wd_switch_on_eop = true;
403
404 /* Hawaii hangs if instancing is enabled and WD_SWITCH_ON_EOP is 0.
405 * We don't know that for indirect drawing, so treat it as
406 * always problematic. */
407 if (sscreen->info.family == CHIP_HAWAII &&
408 key->u.uses_instancing)
409 wd_switch_on_eop = true;
410
411 /* Performance recommendation for 4 SE Gfx7-8 parts if
412 * instances are smaller than a primgroup.
413 * Assume indirect draws always use small instances.
414 * This is needed for good VS wave utilization.
415 */
416 if (sscreen->info.chip_class <= GFX8 &&
417 sscreen->info.max_se == 4 &&
418 key->u.multi_instances_smaller_than_primgroup)
419 wd_switch_on_eop = true;
420
421 /* Required on GFX7 and later. */
422 if (sscreen->info.max_se == 4 && !wd_switch_on_eop)
423 ia_switch_on_eoi = true;
424
425 /* HW engineers suggested that PARTIAL_VS_WAVE_ON should be set
426 * to work around a GS hang.
427 */
428 if (key->u.uses_gs &&
429 (sscreen->info.family == CHIP_TONGA ||
430 sscreen->info.family == CHIP_FIJI ||
431 sscreen->info.family == CHIP_POLARIS10 ||
432 sscreen->info.family == CHIP_POLARIS11 ||
433 sscreen->info.family == CHIP_POLARIS12 ||
434 sscreen->info.family == CHIP_VEGAM))
435 partial_vs_wave = true;
436
437 /* Required by Hawaii and, for some special cases, by GFX8. */
438 if (ia_switch_on_eoi &&
439 (sscreen->info.family == CHIP_HAWAII ||
440 (sscreen->info.chip_class == GFX8 &&
441 (key->u.uses_gs || max_primgroup_in_wave != 2))))
442 partial_vs_wave = true;
443
444 /* Instancing bug on Bonaire. */
445 if (sscreen->info.family == CHIP_BONAIRE && ia_switch_on_eoi &&
446 key->u.uses_instancing)
447 partial_vs_wave = true;
448
449 /* This only applies to Polaris10 and later 4 SE chips.
450 * wd_switch_on_eop is already true on all other chips.
451 */
452 if (!wd_switch_on_eop && key->u.primitive_restart)
453 partial_vs_wave = true;
454
455 /* If the WD switch is false, the IA switch must be false too. */
456 assert(wd_switch_on_eop || !ia_switch_on_eop);
457 }
458
459 /* If SWITCH_ON_EOI is set, PARTIAL_ES_WAVE must be set too. */
460 if (sscreen->info.chip_class <= GFX8 && ia_switch_on_eoi)
461 partial_es_wave = true;
462
463 return S_028AA8_SWITCH_ON_EOP(ia_switch_on_eop) |
464 S_028AA8_SWITCH_ON_EOI(ia_switch_on_eoi) |
465 S_028AA8_PARTIAL_VS_WAVE_ON(partial_vs_wave) |
466 S_028AA8_PARTIAL_ES_WAVE_ON(partial_es_wave) |
467 S_028AA8_WD_SWITCH_ON_EOP(sscreen->info.chip_class >= GFX7 ? wd_switch_on_eop : 0) |
468 /* The following field was moved to VGT_SHADER_STAGES_EN in GFX9. */
469 S_028AA8_MAX_PRIMGRP_IN_WAVE(sscreen->info.chip_class == GFX8 ?
470 max_primgroup_in_wave : 0) |
471 S_030960_EN_INST_OPT_BASIC(sscreen->info.chip_class >= GFX9) |
472 S_030960_EN_INST_OPT_ADV(sscreen->info.chip_class >= GFX9);
473 }
474
475 static void si_init_ia_multi_vgt_param_table(struct si_context *sctx)
476 {
477 for (int prim = 0; prim <= SI_PRIM_RECTANGLE_LIST; prim++)
478 for (int uses_instancing = 0; uses_instancing < 2; uses_instancing++)
479 for (int multi_instances = 0; multi_instances < 2; multi_instances++)
480 for (int primitive_restart = 0; primitive_restart < 2; primitive_restart++)
481 for (int count_from_so = 0; count_from_so < 2; count_from_so++)
482 for (int line_stipple = 0; line_stipple < 2; line_stipple++)
483 for (int uses_tess = 0; uses_tess < 2; uses_tess++)
484 for (int tess_uses_primid = 0; tess_uses_primid < 2; tess_uses_primid++)
485 for (int uses_gs = 0; uses_gs < 2; uses_gs++) {
486 union si_vgt_param_key key;
487
488 key.index = 0;
489 key.u.prim = prim;
490 key.u.uses_instancing = uses_instancing;
491 key.u.multi_instances_smaller_than_primgroup = multi_instances;
492 key.u.primitive_restart = primitive_restart;
493 key.u.count_from_stream_output = count_from_so;
494 key.u.line_stipple_enabled = line_stipple;
495 key.u.uses_tess = uses_tess;
496 key.u.tess_uses_prim_id = tess_uses_primid;
497 key.u.uses_gs = uses_gs;
498
499 sctx->ia_multi_vgt_param[key.index] =
500 si_get_init_multi_vgt_param(sctx->screen, &key);
501 }
502 }
503
504 static unsigned si_get_ia_multi_vgt_param(struct si_context *sctx,
505 const struct pipe_draw_info *info,
506 enum pipe_prim_type prim,
507 unsigned num_patches,
508 unsigned instance_count,
509 bool primitive_restart)
510 {
511 union si_vgt_param_key key = sctx->ia_multi_vgt_param_key;
512 unsigned primgroup_size;
513 unsigned ia_multi_vgt_param;
514
515 if (sctx->tes_shader.cso) {
516 primgroup_size = num_patches; /* must be a multiple of NUM_PATCHES */
517 } else if (sctx->gs_shader.cso) {
518 primgroup_size = 64; /* recommended with a GS */
519 } else {
520 primgroup_size = 128; /* recommended without a GS and tess */
521 }
522
523 key.u.prim = prim;
524 key.u.uses_instancing = info->indirect || instance_count > 1;
525 key.u.multi_instances_smaller_than_primgroup =
526 info->indirect ||
527 (instance_count > 1 &&
528 (info->count_from_stream_output ||
529 si_num_prims_for_vertices(info, prim) < primgroup_size));
530 key.u.primitive_restart = primitive_restart;
531 key.u.count_from_stream_output = info->count_from_stream_output != NULL;
532
533 ia_multi_vgt_param = sctx->ia_multi_vgt_param[key.index] |
534 S_028AA8_PRIMGROUP_SIZE(primgroup_size - 1);
535
536 if (sctx->gs_shader.cso) {
537 /* GS requirement. */
538 if (sctx->chip_class <= GFX8 &&
539 SI_GS_PER_ES / primgroup_size >= sctx->screen->gs_table_depth - 3)
540 ia_multi_vgt_param |= S_028AA8_PARTIAL_ES_WAVE_ON(1);
541
542 /* GS hw bug with single-primitive instances and SWITCH_ON_EOI.
543 * The hw doc says all multi-SE chips are affected, but Vulkan
544 * only applies it to Hawaii. Do what Vulkan does.
545 */
546 if (sctx->family == CHIP_HAWAII &&
547 G_028AA8_SWITCH_ON_EOI(ia_multi_vgt_param) &&
548 (info->indirect ||
549 (instance_count > 1 &&
550 (info->count_from_stream_output ||
551 si_num_prims_for_vertices(info, prim) <= 1))))
552 sctx->flags |= SI_CONTEXT_VGT_FLUSH;
553 }
554
555 return ia_multi_vgt_param;
556 }
557
558 static unsigned si_conv_prim_to_gs_out(unsigned mode)
559 {
560 static const int prim_conv[] = {
561 [PIPE_PRIM_POINTS] = V_028A6C_OUTPRIM_TYPE_POINTLIST,
562 [PIPE_PRIM_LINES] = V_028A6C_OUTPRIM_TYPE_LINESTRIP,
563 [PIPE_PRIM_LINE_LOOP] = V_028A6C_OUTPRIM_TYPE_LINESTRIP,
564 [PIPE_PRIM_LINE_STRIP] = V_028A6C_OUTPRIM_TYPE_LINESTRIP,
565 [PIPE_PRIM_TRIANGLES] = V_028A6C_OUTPRIM_TYPE_TRISTRIP,
566 [PIPE_PRIM_TRIANGLE_STRIP] = V_028A6C_OUTPRIM_TYPE_TRISTRIP,
567 [PIPE_PRIM_TRIANGLE_FAN] = V_028A6C_OUTPRIM_TYPE_TRISTRIP,
568 [PIPE_PRIM_QUADS] = V_028A6C_OUTPRIM_TYPE_TRISTRIP,
569 [PIPE_PRIM_QUAD_STRIP] = V_028A6C_OUTPRIM_TYPE_TRISTRIP,
570 [PIPE_PRIM_POLYGON] = V_028A6C_OUTPRIM_TYPE_TRISTRIP,
571 [PIPE_PRIM_LINES_ADJACENCY] = V_028A6C_OUTPRIM_TYPE_LINESTRIP,
572 [PIPE_PRIM_LINE_STRIP_ADJACENCY] = V_028A6C_OUTPRIM_TYPE_LINESTRIP,
573 [PIPE_PRIM_TRIANGLES_ADJACENCY] = V_028A6C_OUTPRIM_TYPE_TRISTRIP,
574 [PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY] = V_028A6C_OUTPRIM_TYPE_TRISTRIP,
575 [PIPE_PRIM_PATCHES] = V_028A6C_OUTPRIM_TYPE_POINTLIST,
576 [SI_PRIM_RECTANGLE_LIST] = V_028A6C_VGT_OUT_RECT_V0,
577 };
578 assert(mode < ARRAY_SIZE(prim_conv));
579
580 return prim_conv[mode];
581 }
582
583 /* rast_prim is the primitive type after GS. */
584 static void si_emit_rasterizer_prim_state(struct si_context *sctx)
585 {
586 struct radeon_cmdbuf *cs = sctx->gfx_cs;
587 enum pipe_prim_type rast_prim = sctx->current_rast_prim;
588 struct si_state_rasterizer *rs = sctx->queued.named.rasterizer;
589
590 if (likely(rast_prim == sctx->last_rast_prim &&
591 rs->pa_sc_line_stipple == sctx->last_sc_line_stipple &&
592 (sctx->chip_class <= GFX9 ||
593 rs->flatshade_first == sctx->last_flatshade_first)))
594 return;
595
596 if (util_prim_is_lines(rast_prim)) {
597 /* For lines, reset the stipple pattern at each primitive. Otherwise,
598 * reset the stipple pattern at each packet (line strips, line loops).
599 */
600 radeon_set_context_reg(cs, R_028A0C_PA_SC_LINE_STIPPLE,
601 rs->pa_sc_line_stipple |
602 S_028A0C_AUTO_RESET_CNTL(rast_prim == PIPE_PRIM_LINES ? 1 : 2));
603 sctx->context_roll = true;
604 }
605
606 unsigned gs_out = si_conv_prim_to_gs_out(sctx->current_rast_prim);
607
608 if (rast_prim != sctx->last_rast_prim &&
609 (sctx->ngg || sctx->gs_shader.cso)) {
610 radeon_set_context_reg(cs, R_028A6C_VGT_GS_OUT_PRIM_TYPE, gs_out);
611 sctx->context_roll = true;
612
613 if (sctx->chip_class >= GFX10) {
614 sctx->current_vs_state &= C_VS_STATE_OUTPRIM;
615 sctx->current_vs_state |= S_VS_STATE_OUTPRIM(gs_out);
616 }
617 }
618
619 if (sctx->chip_class >= GFX10) {
620 unsigned vtx_index = rs->flatshade_first ? 0 : gs_out;
621 sctx->current_vs_state &= C_VS_STATE_PROVOKING_VTX_INDEX;
622 sctx->current_vs_state |= S_VS_STATE_PROVOKING_VTX_INDEX(vtx_index);
623 }
624
625 sctx->last_rast_prim = rast_prim;
626 sctx->last_sc_line_stipple = rs->pa_sc_line_stipple;
627 sctx->last_flatshade_first = rs->flatshade_first;
628 }
629
630 static void si_emit_vs_state(struct si_context *sctx,
631 const struct pipe_draw_info *info)
632 {
633 sctx->current_vs_state &= C_VS_STATE_INDEXED;
634 sctx->current_vs_state |= S_VS_STATE_INDEXED(!!info->index_size);
635
636 if (sctx->num_vs_blit_sgprs) {
637 /* Re-emit the state after we leave u_blitter. */
638 sctx->last_vs_state = ~0;
639 return;
640 }
641
642 if (sctx->current_vs_state != sctx->last_vs_state) {
643 struct radeon_cmdbuf *cs = sctx->gfx_cs;
644
645 /* For the API vertex shader (VS_STATE_INDEXED, LS_OUT_*). */
646 radeon_set_sh_reg(cs,
647 sctx->shader_pointers.sh_base[PIPE_SHADER_VERTEX] +
648 SI_SGPR_VS_STATE_BITS * 4,
649 sctx->current_vs_state);
650
651 /* Set CLAMP_VERTEX_COLOR and OUTPRIM in the last stage
652 * before the rasterizer.
653 *
654 * For TES or the GS copy shader without NGG:
655 */
656 if (sctx->shader_pointers.sh_base[PIPE_SHADER_VERTEX] !=
657 R_00B130_SPI_SHADER_USER_DATA_VS_0) {
658 radeon_set_sh_reg(cs,
659 R_00B130_SPI_SHADER_USER_DATA_VS_0 +
660 SI_SGPR_VS_STATE_BITS * 4,
661 sctx->current_vs_state);
662 }
663
664 /* For NGG: */
665 if (sctx->chip_class >= GFX10 &&
666 sctx->shader_pointers.sh_base[PIPE_SHADER_VERTEX] !=
667 R_00B230_SPI_SHADER_USER_DATA_GS_0) {
668 radeon_set_sh_reg(cs,
669 R_00B230_SPI_SHADER_USER_DATA_GS_0 +
670 SI_SGPR_VS_STATE_BITS * 4,
671 sctx->current_vs_state);
672 }
673
674 sctx->last_vs_state = sctx->current_vs_state;
675 }
676 }
677
678 static inline bool si_prim_restart_index_changed(struct si_context *sctx,
679 bool primitive_restart,
680 unsigned restart_index)
681 {
682 return primitive_restart &&
683 (restart_index != sctx->last_restart_index ||
684 sctx->last_restart_index == SI_RESTART_INDEX_UNKNOWN);
685 }
686
687 static void si_emit_ia_multi_vgt_param(struct si_context *sctx,
688 const struct pipe_draw_info *info,
689 enum pipe_prim_type prim,
690 unsigned num_patches,
691 unsigned instance_count,
692 bool primitive_restart)
693 {
694 struct radeon_cmdbuf *cs = sctx->gfx_cs;
695 unsigned ia_multi_vgt_param;
696
697 ia_multi_vgt_param = si_get_ia_multi_vgt_param(sctx, info, prim, num_patches,
698 instance_count, primitive_restart);
699
700 /* Draw state. */
701 if (ia_multi_vgt_param != sctx->last_multi_vgt_param) {
702 if (sctx->chip_class == GFX9)
703 radeon_set_uconfig_reg_idx(cs, sctx->screen,
704 R_030960_IA_MULTI_VGT_PARAM, 4,
705 ia_multi_vgt_param);
706 else if (sctx->chip_class >= GFX7)
707 radeon_set_context_reg_idx(cs, R_028AA8_IA_MULTI_VGT_PARAM, 1, ia_multi_vgt_param);
708 else
709 radeon_set_context_reg(cs, R_028AA8_IA_MULTI_VGT_PARAM, ia_multi_vgt_param);
710
711 sctx->last_multi_vgt_param = ia_multi_vgt_param;
712 }
713 }
714
715 /* GFX10 removed IA_MULTI_VGT_PARAM in exchange for GE_CNTL.
716 * We overload last_multi_vgt_param.
717 */
718 static void gfx10_emit_ge_cntl(struct si_context *sctx, unsigned num_patches)
719 {
720 unsigned ge_cntl;
721
722 if (sctx->ngg) {
723 ge_cntl = si_get_vs_state(sctx)->ge_cntl |
724 S_03096C_PACKET_TO_ONE_PA(sctx->ia_multi_vgt_param_key.u.line_stipple_enabled);
725 } else {
726 union si_vgt_param_key key = sctx->ia_multi_vgt_param_key;
727 unsigned primgroup_size;
728 unsigned vertgroup_size;
729
730 if (sctx->tes_shader.cso) {
731 primgroup_size = num_patches; /* must be a multiple of NUM_PATCHES */
732 vertgroup_size = 0;
733 } else if (sctx->gs_shader.cso) {
734 unsigned vgt_gs_onchip_cntl = sctx->gs_shader.current->ctx_reg.gs.vgt_gs_onchip_cntl;
735 primgroup_size = G_028A44_GS_PRIMS_PER_SUBGRP(vgt_gs_onchip_cntl);
736 vertgroup_size = G_028A44_ES_VERTS_PER_SUBGRP(vgt_gs_onchip_cntl);
737 } else {
738 primgroup_size = 128; /* recommended without a GS and tess */
739 vertgroup_size = 0;
740 }
741
742 ge_cntl = S_03096C_PRIM_GRP_SIZE(primgroup_size) |
743 S_03096C_VERT_GRP_SIZE(vertgroup_size) |
744 S_03096C_BREAK_WAVE_AT_EOI(key.u.uses_tess && key.u.tess_uses_prim_id) |
745 S_03096C_PACKET_TO_ONE_PA(key.u.line_stipple_enabled);
746 }
747
748 if (ge_cntl != sctx->last_multi_vgt_param) {
749 radeon_set_uconfig_reg(sctx->gfx_cs, R_03096C_GE_CNTL, ge_cntl);
750 sctx->last_multi_vgt_param = ge_cntl;
751 }
752 }
753
754 static void si_emit_draw_registers(struct si_context *sctx,
755 const struct pipe_draw_info *info,
756 enum pipe_prim_type prim,
757 unsigned num_patches,
758 unsigned instance_count,
759 bool primitive_restart)
760 {
761 struct radeon_cmdbuf *cs = sctx->gfx_cs;
762 unsigned vgt_prim = si_conv_pipe_prim(info->mode);
763
764 if (sctx->chip_class >= GFX10)
765 gfx10_emit_ge_cntl(sctx, num_patches);
766 else
767 si_emit_ia_multi_vgt_param(sctx, info, prim, num_patches,
768 instance_count, primitive_restart);
769
770 if (vgt_prim != sctx->last_prim) {
771 if (sctx->chip_class >= GFX7)
772 radeon_set_uconfig_reg_idx(cs, sctx->screen,
773 R_030908_VGT_PRIMITIVE_TYPE, 1, vgt_prim);
774 else
775 radeon_set_config_reg(cs, R_008958_VGT_PRIMITIVE_TYPE, vgt_prim);
776
777 sctx->last_prim = vgt_prim;
778 }
779
780 /* Primitive restart. */
781 if (primitive_restart != sctx->last_primitive_restart_en) {
782 if (sctx->chip_class >= GFX9)
783 radeon_set_uconfig_reg(cs, R_03092C_VGT_MULTI_PRIM_IB_RESET_EN,
784 primitive_restart);
785 else
786 radeon_set_context_reg(cs, R_028A94_VGT_MULTI_PRIM_IB_RESET_EN,
787 primitive_restart);
788
789 sctx->last_primitive_restart_en = primitive_restart;
790
791 }
792 if (si_prim_restart_index_changed(sctx, primitive_restart, info->restart_index)) {
793 radeon_set_context_reg(cs, R_02840C_VGT_MULTI_PRIM_IB_RESET_INDX,
794 info->restart_index);
795 sctx->last_restart_index = info->restart_index;
796 sctx->context_roll = true;
797 }
798 }
799
800 static void si_emit_draw_packets(struct si_context *sctx,
801 const struct pipe_draw_info *info,
802 struct pipe_resource *indexbuf,
803 unsigned index_size,
804 unsigned index_offset,
805 unsigned instance_count,
806 bool dispatch_prim_discard_cs,
807 unsigned original_index_size)
808 {
809 struct pipe_draw_indirect_info *indirect = info->indirect;
810 struct radeon_cmdbuf *cs = sctx->gfx_cs;
811 unsigned sh_base_reg = sctx->shader_pointers.sh_base[PIPE_SHADER_VERTEX];
812 bool render_cond_bit = sctx->render_cond && !sctx->render_cond_force_off;
813 uint32_t index_max_size = 0;
814 uint64_t index_va = 0;
815
816 if (info->count_from_stream_output) {
817 struct si_streamout_target *t =
818 (struct si_streamout_target*)info->count_from_stream_output;
819
820 radeon_set_context_reg(cs, R_028B30_VGT_STRMOUT_DRAW_OPAQUE_VERTEX_STRIDE,
821 t->stride_in_dw);
822 si_cp_copy_data(sctx, sctx->gfx_cs,
823 COPY_DATA_REG, NULL,
824 R_028B2C_VGT_STRMOUT_DRAW_OPAQUE_BUFFER_FILLED_SIZE >> 2,
825 COPY_DATA_SRC_MEM, t->buf_filled_size,
826 t->buf_filled_size_offset);
827 }
828
829 /* draw packet */
830 if (index_size) {
831 if (index_size != sctx->last_index_size) {
832 unsigned index_type;
833
834 /* index type */
835 switch (index_size) {
836 case 1:
837 index_type = V_028A7C_VGT_INDEX_8;
838 break;
839 case 2:
840 index_type = V_028A7C_VGT_INDEX_16 |
841 (SI_BIG_ENDIAN && sctx->chip_class <= GFX7 ?
842 V_028A7C_VGT_DMA_SWAP_16_BIT : 0);
843 break;
844 case 4:
845 index_type = V_028A7C_VGT_INDEX_32 |
846 (SI_BIG_ENDIAN && sctx->chip_class <= GFX7 ?
847 V_028A7C_VGT_DMA_SWAP_32_BIT : 0);
848 break;
849 default:
850 assert(!"unreachable");
851 return;
852 }
853
854 if (sctx->chip_class >= GFX9) {
855 radeon_set_uconfig_reg_idx(cs, sctx->screen,
856 R_03090C_VGT_INDEX_TYPE, 2,
857 index_type);
858 } else {
859 radeon_emit(cs, PKT3(PKT3_INDEX_TYPE, 0, 0));
860 radeon_emit(cs, index_type);
861 }
862
863 sctx->last_index_size = index_size;
864 }
865
866 if (original_index_size) {
867 index_max_size = (indexbuf->width0 - index_offset) /
868 original_index_size;
869 index_va = si_resource(indexbuf)->gpu_address + index_offset;
870
871 radeon_add_to_buffer_list(sctx, sctx->gfx_cs,
872 si_resource(indexbuf),
873 RADEON_USAGE_READ, RADEON_PRIO_INDEX_BUFFER);
874 }
875 } else {
876 /* On GFX7 and later, non-indexed draws overwrite VGT_INDEX_TYPE,
877 * so the state must be re-emitted before the next indexed draw.
878 */
879 if (sctx->chip_class >= GFX7)
880 sctx->last_index_size = -1;
881 }
882
883 if (indirect) {
884 uint64_t indirect_va = si_resource(indirect->buffer)->gpu_address;
885
886 assert(indirect_va % 8 == 0);
887
888 si_invalidate_draw_sh_constants(sctx);
889
890 radeon_emit(cs, PKT3(PKT3_SET_BASE, 2, 0));
891 radeon_emit(cs, 1);
892 radeon_emit(cs, indirect_va);
893 radeon_emit(cs, indirect_va >> 32);
894
895 radeon_add_to_buffer_list(sctx, sctx->gfx_cs,
896 si_resource(indirect->buffer),
897 RADEON_USAGE_READ, RADEON_PRIO_DRAW_INDIRECT);
898
899 unsigned di_src_sel = index_size ? V_0287F0_DI_SRC_SEL_DMA
900 : V_0287F0_DI_SRC_SEL_AUTO_INDEX;
901
902 assert(indirect->offset % 4 == 0);
903
904 if (index_size) {
905 radeon_emit(cs, PKT3(PKT3_INDEX_BASE, 1, 0));
906 radeon_emit(cs, index_va);
907 radeon_emit(cs, index_va >> 32);
908
909 radeon_emit(cs, PKT3(PKT3_INDEX_BUFFER_SIZE, 0, 0));
910 radeon_emit(cs, index_max_size);
911 }
912
913 if (!sctx->screen->has_draw_indirect_multi) {
914 radeon_emit(cs, PKT3(index_size ? PKT3_DRAW_INDEX_INDIRECT
915 : PKT3_DRAW_INDIRECT,
916 3, render_cond_bit));
917 radeon_emit(cs, indirect->offset);
918 radeon_emit(cs, (sh_base_reg + SI_SGPR_BASE_VERTEX * 4 - SI_SH_REG_OFFSET) >> 2);
919 radeon_emit(cs, (sh_base_reg + SI_SGPR_START_INSTANCE * 4 - SI_SH_REG_OFFSET) >> 2);
920 radeon_emit(cs, di_src_sel);
921 } else {
922 uint64_t count_va = 0;
923
924 if (indirect->indirect_draw_count) {
925 struct si_resource *params_buf =
926 si_resource(indirect->indirect_draw_count);
927
928 radeon_add_to_buffer_list(
929 sctx, sctx->gfx_cs, params_buf,
930 RADEON_USAGE_READ, RADEON_PRIO_DRAW_INDIRECT);
931
932 count_va = params_buf->gpu_address + indirect->indirect_draw_count_offset;
933 }
934
935 radeon_emit(cs, PKT3(index_size ? PKT3_DRAW_INDEX_INDIRECT_MULTI :
936 PKT3_DRAW_INDIRECT_MULTI,
937 8, render_cond_bit));
938 radeon_emit(cs, indirect->offset);
939 radeon_emit(cs, (sh_base_reg + SI_SGPR_BASE_VERTEX * 4 - SI_SH_REG_OFFSET) >> 2);
940 radeon_emit(cs, (sh_base_reg + SI_SGPR_START_INSTANCE * 4 - SI_SH_REG_OFFSET) >> 2);
941 radeon_emit(cs, ((sh_base_reg + SI_SGPR_DRAWID * 4 - SI_SH_REG_OFFSET) >> 2) |
942 S_2C3_DRAW_INDEX_ENABLE(1) |
943 S_2C3_COUNT_INDIRECT_ENABLE(!!indirect->indirect_draw_count));
944 radeon_emit(cs, indirect->draw_count);
945 radeon_emit(cs, count_va);
946 radeon_emit(cs, count_va >> 32);
947 radeon_emit(cs, indirect->stride);
948 radeon_emit(cs, di_src_sel);
949 }
950 } else {
951 int base_vertex;
952
953 if (sctx->last_instance_count == SI_INSTANCE_COUNT_UNKNOWN ||
954 sctx->last_instance_count != instance_count) {
955 radeon_emit(cs, PKT3(PKT3_NUM_INSTANCES, 0, 0));
956 radeon_emit(cs, instance_count);
957 sctx->last_instance_count = instance_count;
958 }
959
960 /* Base vertex and start instance. */
961 base_vertex = original_index_size ? info->index_bias : info->start;
962
963 if (sctx->num_vs_blit_sgprs) {
964 /* Re-emit draw constants after we leave u_blitter. */
965 si_invalidate_draw_sh_constants(sctx);
966
967 /* Blit VS doesn't use BASE_VERTEX, START_INSTANCE, and DRAWID. */
968 radeon_set_sh_reg_seq(cs, sh_base_reg + SI_SGPR_VS_BLIT_DATA * 4,
969 sctx->num_vs_blit_sgprs);
970 radeon_emit_array(cs, sctx->vs_blit_sh_data,
971 sctx->num_vs_blit_sgprs);
972 } else if (base_vertex != sctx->last_base_vertex ||
973 sctx->last_base_vertex == SI_BASE_VERTEX_UNKNOWN ||
974 info->start_instance != sctx->last_start_instance ||
975 info->drawid != sctx->last_drawid ||
976 sh_base_reg != sctx->last_sh_base_reg) {
977 radeon_set_sh_reg_seq(cs, sh_base_reg + SI_SGPR_BASE_VERTEX * 4, 3);
978 radeon_emit(cs, base_vertex);
979 radeon_emit(cs, info->start_instance);
980 radeon_emit(cs, info->drawid);
981
982 sctx->last_base_vertex = base_vertex;
983 sctx->last_start_instance = info->start_instance;
984 sctx->last_drawid = info->drawid;
985 sctx->last_sh_base_reg = sh_base_reg;
986 }
987
988 if (index_size) {
989 if (dispatch_prim_discard_cs) {
990 index_va += info->start * original_index_size;
991 index_max_size = MIN2(index_max_size, info->count);
992
993 si_dispatch_prim_discard_cs_and_draw(sctx, info,
994 original_index_size,
995 base_vertex,
996 index_va, index_max_size);
997 return;
998 }
999
1000 index_va += info->start * index_size;
1001
1002 radeon_emit(cs, PKT3(PKT3_DRAW_INDEX_2, 4, render_cond_bit));
1003 radeon_emit(cs, index_max_size);
1004 radeon_emit(cs, index_va);
1005 radeon_emit(cs, index_va >> 32);
1006 radeon_emit(cs, info->count);
1007 radeon_emit(cs, V_0287F0_DI_SRC_SEL_DMA);
1008 } else {
1009 radeon_emit(cs, PKT3(PKT3_DRAW_INDEX_AUTO, 1, render_cond_bit));
1010 radeon_emit(cs, info->count);
1011 radeon_emit(cs, V_0287F0_DI_SRC_SEL_AUTO_INDEX |
1012 S_0287F0_USE_OPAQUE(!!info->count_from_stream_output));
1013 }
1014 }
1015 }
1016
1017 void si_emit_surface_sync(struct si_context *sctx, struct radeon_cmdbuf *cs,
1018 unsigned cp_coher_cntl)
1019 {
1020 bool compute_ib = !sctx->has_graphics ||
1021 cs == sctx->prim_discard_compute_cs;
1022
1023 assert(sctx->chip_class <= GFX9);
1024
1025 if (sctx->chip_class == GFX9 || compute_ib) {
1026 /* Flush caches and wait for the caches to assert idle. */
1027 radeon_emit(cs, PKT3(PKT3_ACQUIRE_MEM, 5, 0));
1028 radeon_emit(cs, cp_coher_cntl); /* CP_COHER_CNTL */
1029 radeon_emit(cs, 0xffffffff); /* CP_COHER_SIZE */
1030 radeon_emit(cs, 0xffffff); /* CP_COHER_SIZE_HI */
1031 radeon_emit(cs, 0); /* CP_COHER_BASE */
1032 radeon_emit(cs, 0); /* CP_COHER_BASE_HI */
1033 radeon_emit(cs, 0x0000000A); /* POLL_INTERVAL */
1034 } else {
1035 /* ACQUIRE_MEM is only required on a compute ring. */
1036 radeon_emit(cs, PKT3(PKT3_SURFACE_SYNC, 3, 0));
1037 radeon_emit(cs, cp_coher_cntl); /* CP_COHER_CNTL */
1038 radeon_emit(cs, 0xffffffff); /* CP_COHER_SIZE */
1039 radeon_emit(cs, 0); /* CP_COHER_BASE */
1040 radeon_emit(cs, 0x0000000A); /* POLL_INTERVAL */
1041 }
1042
1043 /* ACQUIRE_MEM has an implicit context roll if the current context
1044 * is busy. */
1045 if (!compute_ib)
1046 sctx->context_roll = true;
1047 }
1048
1049 void si_prim_discard_signal_next_compute_ib_start(struct si_context *sctx)
1050 {
1051 if (!si_compute_prim_discard_enabled(sctx))
1052 return;
1053
1054 if (!sctx->barrier_buf) {
1055 u_suballocator_alloc(sctx->allocator_zeroed_memory, 4, 4,
1056 &sctx->barrier_buf_offset,
1057 (struct pipe_resource**)&sctx->barrier_buf);
1058 }
1059
1060 /* Emit a placeholder to signal the next compute IB to start.
1061 * See si_compute_prim_discard.c for explanation.
1062 */
1063 uint32_t signal = 1;
1064 si_cp_write_data(sctx, sctx->barrier_buf, sctx->barrier_buf_offset,
1065 4, V_370_MEM, V_370_ME, &signal);
1066
1067 sctx->last_pkt3_write_data =
1068 &sctx->gfx_cs->current.buf[sctx->gfx_cs->current.cdw - 5];
1069
1070 /* Only the last occurence of WRITE_DATA will be executed.
1071 * The packet will be enabled in si_flush_gfx_cs.
1072 */
1073 *sctx->last_pkt3_write_data = PKT3(PKT3_NOP, 3, 0);
1074 }
1075
1076 void gfx10_emit_cache_flush(struct si_context *ctx)
1077 {
1078 struct radeon_cmdbuf *cs = ctx->gfx_cs;
1079 uint32_t gcr_cntl = 0;
1080 unsigned cb_db_event = 0;
1081 unsigned flags = ctx->flags;
1082
1083 if (!ctx->has_graphics) {
1084 /* Only process compute flags. */
1085 flags &= SI_CONTEXT_INV_ICACHE |
1086 SI_CONTEXT_INV_SCACHE |
1087 SI_CONTEXT_INV_VCACHE |
1088 SI_CONTEXT_INV_L2 |
1089 SI_CONTEXT_WB_L2 |
1090 SI_CONTEXT_INV_L2_METADATA |
1091 SI_CONTEXT_CS_PARTIAL_FLUSH;
1092 }
1093
1094 /* We don't need these. */
1095 assert(!(flags & (SI_CONTEXT_VGT_FLUSH |
1096 SI_CONTEXT_VGT_STREAMOUT_SYNC |
1097 SI_CONTEXT_FLUSH_AND_INV_DB_META)));
1098
1099 if (flags & SI_CONTEXT_FLUSH_AND_INV_CB)
1100 ctx->num_cb_cache_flushes++;
1101 if (flags & SI_CONTEXT_FLUSH_AND_INV_DB)
1102 ctx->num_db_cache_flushes++;
1103
1104 if (flags & SI_CONTEXT_INV_ICACHE)
1105 gcr_cntl |= S_586_GLI_INV(V_586_GLI_ALL);
1106 if (flags & SI_CONTEXT_INV_SCACHE) {
1107 /* TODO: When writing to the SMEM L1 cache, we need to set SEQ
1108 * to FORWARD when both L1 and L2 are written out (WB or INV).
1109 */
1110 gcr_cntl |= S_586_GL1_INV(1) | S_586_GLK_INV(1);
1111 }
1112 if (flags & SI_CONTEXT_INV_VCACHE)
1113 gcr_cntl |= S_586_GL1_INV(1) | S_586_GLV_INV(1);
1114 if (flags & SI_CONTEXT_INV_L2) {
1115 /* Writeback and invalidate everything in L2. */
1116 gcr_cntl |= S_586_GL2_INV(1) | S_586_GLM_INV(1);
1117 ctx->num_L2_invalidates++;
1118 } else if (flags & SI_CONTEXT_WB_L2) {
1119 /* Writeback but do not invalidate. */
1120 gcr_cntl |= S_586_GL2_WB(1);
1121 }
1122 if (flags & SI_CONTEXT_INV_L2_METADATA)
1123 gcr_cntl |= S_586_GLM_INV(1);
1124
1125 if (flags & (SI_CONTEXT_FLUSH_AND_INV_CB | SI_CONTEXT_FLUSH_AND_INV_DB)) {
1126 if (flags & SI_CONTEXT_FLUSH_AND_INV_CB) {
1127 /* Flush CMASK/FMASK/DCC. Will wait for idle later. */
1128 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
1129 radeon_emit(cs, EVENT_TYPE(V_028A90_FLUSH_AND_INV_CB_META) |
1130 EVENT_INDEX(0));
1131 }
1132 if (flags & SI_CONTEXT_FLUSH_AND_INV_DB) {
1133 /* Flush HTILE. Will wait for idle later. */
1134 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
1135 radeon_emit(cs, EVENT_TYPE(V_028A90_FLUSH_AND_INV_DB_META) |
1136 EVENT_INDEX(0));
1137 }
1138
1139 /* First flush CB/DB, then L1/L2. */
1140 gcr_cntl |= S_586_SEQ(V_586_SEQ_FORWARD);
1141
1142 if ((flags & (SI_CONTEXT_FLUSH_AND_INV_CB | SI_CONTEXT_FLUSH_AND_INV_DB)) ==
1143 (SI_CONTEXT_FLUSH_AND_INV_CB | SI_CONTEXT_FLUSH_AND_INV_DB)) {
1144 cb_db_event = V_028A90_CACHE_FLUSH_AND_INV_TS_EVENT;
1145 } else if (flags & SI_CONTEXT_FLUSH_AND_INV_CB) {
1146 cb_db_event = V_028A90_FLUSH_AND_INV_CB_DATA_TS;
1147 } else if (flags & SI_CONTEXT_FLUSH_AND_INV_DB) {
1148 cb_db_event = V_028A90_FLUSH_AND_INV_DB_DATA_TS;
1149 } else {
1150 assert(0);
1151 }
1152 } else {
1153 /* Wait for graphics shaders to go idle if requested. */
1154 if (flags & SI_CONTEXT_PS_PARTIAL_FLUSH) {
1155 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
1156 radeon_emit(cs, EVENT_TYPE(V_028A90_PS_PARTIAL_FLUSH) | EVENT_INDEX(4));
1157 /* Only count explicit shader flushes, not implicit ones. */
1158 ctx->num_vs_flushes++;
1159 ctx->num_ps_flushes++;
1160 } else if (flags & SI_CONTEXT_VS_PARTIAL_FLUSH) {
1161 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
1162 radeon_emit(cs, EVENT_TYPE(V_028A90_VS_PARTIAL_FLUSH) | EVENT_INDEX(4));
1163 ctx->num_vs_flushes++;
1164 }
1165 }
1166
1167 if (flags & SI_CONTEXT_CS_PARTIAL_FLUSH && ctx->compute_is_busy) {
1168 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
1169 radeon_emit(cs, EVENT_TYPE(V_028A90_CS_PARTIAL_FLUSH | EVENT_INDEX(4)));
1170 ctx->num_cs_flushes++;
1171 ctx->compute_is_busy = false;
1172 }
1173
1174 if (cb_db_event) {
1175 /* CB/DB flush and invalidate (or possibly just a wait for a
1176 * meta flush) via RELEASE_MEM.
1177 *
1178 * Combine this with other cache flushes when possible; this
1179 * requires affected shaders to be idle, so do it after the
1180 * CS_PARTIAL_FLUSH before (VS/PS partial flushes are always
1181 * implied).
1182 */
1183 uint64_t va;
1184
1185 /* Do the flush (enqueue the event and wait for it). */
1186 va = ctx->wait_mem_scratch->gpu_address;
1187 ctx->wait_mem_number++;
1188
1189 /* Get GCR_CNTL fields, because the encoding is different in RELEASE_MEM. */
1190 unsigned glm_wb = G_586_GLM_WB(gcr_cntl);
1191 unsigned glm_inv = G_586_GLM_INV(gcr_cntl);
1192 unsigned glv_inv = G_586_GLV_INV(gcr_cntl);
1193 unsigned gl1_inv = G_586_GL1_INV(gcr_cntl);
1194 assert(G_586_GL2_US(gcr_cntl) == 0);
1195 assert(G_586_GL2_RANGE(gcr_cntl) == 0);
1196 assert(G_586_GL2_DISCARD(gcr_cntl) == 0);
1197 unsigned gl2_inv = G_586_GL2_INV(gcr_cntl);
1198 unsigned gl2_wb = G_586_GL2_WB(gcr_cntl);
1199 unsigned gcr_seq = G_586_SEQ(gcr_cntl);
1200
1201 gcr_cntl &= C_586_GLM_WB &
1202 C_586_GLM_INV &
1203 C_586_GLV_INV &
1204 C_586_GL1_INV &
1205 C_586_GL2_INV &
1206 C_586_GL2_WB; /* keep SEQ */
1207
1208 si_cp_release_mem(ctx, cs, cb_db_event,
1209 S_490_GLM_WB(glm_wb) |
1210 S_490_GLM_INV(glm_inv) |
1211 S_490_GLV_INV(glv_inv) |
1212 S_490_GL1_INV(gl1_inv) |
1213 S_490_GL2_INV(gl2_inv) |
1214 S_490_GL2_WB(gl2_wb) |
1215 S_490_SEQ(gcr_seq),
1216 EOP_DST_SEL_MEM,
1217 EOP_INT_SEL_SEND_DATA_AFTER_WR_CONFIRM,
1218 EOP_DATA_SEL_VALUE_32BIT,
1219 ctx->wait_mem_scratch, va,
1220 ctx->wait_mem_number, SI_NOT_QUERY);
1221 si_cp_wait_mem(ctx, ctx->gfx_cs, va, ctx->wait_mem_number, 0xffffffff,
1222 WAIT_REG_MEM_EQUAL);
1223 }
1224
1225 /* Ignore fields that only modify the behavior of other fields. */
1226 if (gcr_cntl & C_586_GL1_RANGE & C_586_GL2_RANGE & C_586_SEQ) {
1227 /* Flush caches and wait for the caches to assert idle.
1228 * The cache flush is executed in the ME, but the PFP waits
1229 * for completion.
1230 */
1231 radeon_emit(cs, PKT3(PKT3_ACQUIRE_MEM, 6, 0));
1232 radeon_emit(cs, 0); /* CP_COHER_CNTL */
1233 radeon_emit(cs, 0xffffffff); /* CP_COHER_SIZE */
1234 radeon_emit(cs, 0xffffff); /* CP_COHER_SIZE_HI */
1235 radeon_emit(cs, 0); /* CP_COHER_BASE */
1236 radeon_emit(cs, 0); /* CP_COHER_BASE_HI */
1237 radeon_emit(cs, 0x0000000A); /* POLL_INTERVAL */
1238 radeon_emit(cs, gcr_cntl); /* GCR_CNTL */
1239 } else if (cb_db_event ||
1240 (flags & (SI_CONTEXT_VS_PARTIAL_FLUSH |
1241 SI_CONTEXT_PS_PARTIAL_FLUSH |
1242 SI_CONTEXT_CS_PARTIAL_FLUSH))) {
1243 /* We need to ensure that PFP waits as well. */
1244 radeon_emit(cs, PKT3(PKT3_PFP_SYNC_ME, 0, 0));
1245 radeon_emit(cs, 0);
1246 }
1247
1248 if (flags & SI_CONTEXT_START_PIPELINE_STATS) {
1249 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
1250 radeon_emit(cs, EVENT_TYPE(V_028A90_PIPELINESTAT_START) |
1251 EVENT_INDEX(0));
1252 } else if (flags & SI_CONTEXT_STOP_PIPELINE_STATS) {
1253 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
1254 radeon_emit(cs, EVENT_TYPE(V_028A90_PIPELINESTAT_STOP) |
1255 EVENT_INDEX(0));
1256 }
1257
1258 ctx->flags = 0;
1259 }
1260
1261 void si_emit_cache_flush(struct si_context *sctx)
1262 {
1263 struct radeon_cmdbuf *cs = sctx->gfx_cs;
1264 uint32_t flags = sctx->flags;
1265
1266 if (!sctx->has_graphics) {
1267 /* Only process compute flags. */
1268 flags &= SI_CONTEXT_INV_ICACHE |
1269 SI_CONTEXT_INV_SCACHE |
1270 SI_CONTEXT_INV_VCACHE |
1271 SI_CONTEXT_INV_L2 |
1272 SI_CONTEXT_WB_L2 |
1273 SI_CONTEXT_INV_L2_METADATA |
1274 SI_CONTEXT_CS_PARTIAL_FLUSH;
1275 }
1276
1277 uint32_t cp_coher_cntl = 0;
1278 const uint32_t flush_cb_db = flags & (SI_CONTEXT_FLUSH_AND_INV_CB |
1279 SI_CONTEXT_FLUSH_AND_INV_DB);
1280 const bool is_barrier = flush_cb_db ||
1281 /* INV_ICACHE == beginning of gfx IB. Checking
1282 * INV_ICACHE fixes corruption for DeusExMD with
1283 * compute-based culling, but I don't know why.
1284 */
1285 flags & (SI_CONTEXT_INV_ICACHE |
1286 SI_CONTEXT_PS_PARTIAL_FLUSH |
1287 SI_CONTEXT_VS_PARTIAL_FLUSH) ||
1288 (flags & SI_CONTEXT_CS_PARTIAL_FLUSH &&
1289 sctx->compute_is_busy);
1290
1291 assert(sctx->chip_class <= GFX9);
1292
1293 if (flags & SI_CONTEXT_FLUSH_AND_INV_CB)
1294 sctx->num_cb_cache_flushes++;
1295 if (flags & SI_CONTEXT_FLUSH_AND_INV_DB)
1296 sctx->num_db_cache_flushes++;
1297
1298 /* GFX6 has a bug that it always flushes ICACHE and KCACHE if either
1299 * bit is set. An alternative way is to write SQC_CACHES, but that
1300 * doesn't seem to work reliably. Since the bug doesn't affect
1301 * correctness (it only does more work than necessary) and
1302 * the performance impact is likely negligible, there is no plan
1303 * to add a workaround for it.
1304 */
1305
1306 if (flags & SI_CONTEXT_INV_ICACHE)
1307 cp_coher_cntl |= S_0085F0_SH_ICACHE_ACTION_ENA(1);
1308 if (flags & SI_CONTEXT_INV_SCACHE)
1309 cp_coher_cntl |= S_0085F0_SH_KCACHE_ACTION_ENA(1);
1310
1311 if (sctx->chip_class <= GFX8) {
1312 if (flags & SI_CONTEXT_FLUSH_AND_INV_CB) {
1313 cp_coher_cntl |= S_0085F0_CB_ACTION_ENA(1) |
1314 S_0085F0_CB0_DEST_BASE_ENA(1) |
1315 S_0085F0_CB1_DEST_BASE_ENA(1) |
1316 S_0085F0_CB2_DEST_BASE_ENA(1) |
1317 S_0085F0_CB3_DEST_BASE_ENA(1) |
1318 S_0085F0_CB4_DEST_BASE_ENA(1) |
1319 S_0085F0_CB5_DEST_BASE_ENA(1) |
1320 S_0085F0_CB6_DEST_BASE_ENA(1) |
1321 S_0085F0_CB7_DEST_BASE_ENA(1);
1322
1323 /* Necessary for DCC */
1324 if (sctx->chip_class == GFX8)
1325 si_cp_release_mem(sctx, cs,
1326 V_028A90_FLUSH_AND_INV_CB_DATA_TS,
1327 0, EOP_DST_SEL_MEM, EOP_INT_SEL_NONE,
1328 EOP_DATA_SEL_DISCARD, NULL,
1329 0, 0, SI_NOT_QUERY);
1330 }
1331 if (flags & SI_CONTEXT_FLUSH_AND_INV_DB)
1332 cp_coher_cntl |= S_0085F0_DB_ACTION_ENA(1) |
1333 S_0085F0_DB_DEST_BASE_ENA(1);
1334 }
1335
1336 if (flags & SI_CONTEXT_FLUSH_AND_INV_CB) {
1337 /* Flush CMASK/FMASK/DCC. SURFACE_SYNC will wait for idle. */
1338 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
1339 radeon_emit(cs, EVENT_TYPE(V_028A90_FLUSH_AND_INV_CB_META) | EVENT_INDEX(0));
1340 }
1341 if (flags & (SI_CONTEXT_FLUSH_AND_INV_DB |
1342 SI_CONTEXT_FLUSH_AND_INV_DB_META)) {
1343 /* Flush HTILE. SURFACE_SYNC will wait for idle. */
1344 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
1345 radeon_emit(cs, EVENT_TYPE(V_028A90_FLUSH_AND_INV_DB_META) | EVENT_INDEX(0));
1346 }
1347
1348 /* Wait for shader engines to go idle.
1349 * VS and PS waits are unnecessary if SURFACE_SYNC is going to wait
1350 * for everything including CB/DB cache flushes.
1351 */
1352 if (!flush_cb_db) {
1353 if (flags & SI_CONTEXT_PS_PARTIAL_FLUSH) {
1354 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
1355 radeon_emit(cs, EVENT_TYPE(V_028A90_PS_PARTIAL_FLUSH) | EVENT_INDEX(4));
1356 /* Only count explicit shader flushes, not implicit ones
1357 * done by SURFACE_SYNC.
1358 */
1359 sctx->num_vs_flushes++;
1360 sctx->num_ps_flushes++;
1361 } else if (flags & SI_CONTEXT_VS_PARTIAL_FLUSH) {
1362 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
1363 radeon_emit(cs, EVENT_TYPE(V_028A90_VS_PARTIAL_FLUSH) | EVENT_INDEX(4));
1364 sctx->num_vs_flushes++;
1365 }
1366 }
1367
1368 if (flags & SI_CONTEXT_CS_PARTIAL_FLUSH &&
1369 sctx->compute_is_busy) {
1370 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
1371 radeon_emit(cs, EVENT_TYPE(V_028A90_CS_PARTIAL_FLUSH) | EVENT_INDEX(4));
1372 sctx->num_cs_flushes++;
1373 sctx->compute_is_busy = false;
1374 }
1375
1376 /* VGT state synchronization. */
1377 if (flags & SI_CONTEXT_VGT_FLUSH) {
1378 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
1379 radeon_emit(cs, EVENT_TYPE(V_028A90_VGT_FLUSH) | EVENT_INDEX(0));
1380 }
1381 if (flags & SI_CONTEXT_VGT_STREAMOUT_SYNC) {
1382 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
1383 radeon_emit(cs, EVENT_TYPE(V_028A90_VGT_STREAMOUT_SYNC) | EVENT_INDEX(0));
1384 }
1385
1386 /* GFX9: Wait for idle if we're flushing CB or DB. ACQUIRE_MEM doesn't
1387 * wait for idle on GFX9. We have to use a TS event.
1388 */
1389 if (sctx->chip_class == GFX9 && flush_cb_db) {
1390 uint64_t va;
1391 unsigned tc_flags, cb_db_event;
1392
1393 /* Set the CB/DB flush event. */
1394 switch (flush_cb_db) {
1395 case SI_CONTEXT_FLUSH_AND_INV_CB:
1396 cb_db_event = V_028A90_FLUSH_AND_INV_CB_DATA_TS;
1397 break;
1398 case SI_CONTEXT_FLUSH_AND_INV_DB:
1399 cb_db_event = V_028A90_FLUSH_AND_INV_DB_DATA_TS;
1400 break;
1401 default:
1402 /* both CB & DB */
1403 cb_db_event = V_028A90_CACHE_FLUSH_AND_INV_TS_EVENT;
1404 }
1405
1406 /* These are the only allowed combinations. If you need to
1407 * do multiple operations at once, do them separately.
1408 * All operations that invalidate L2 also seem to invalidate
1409 * metadata. Volatile (VOL) and WC flushes are not listed here.
1410 *
1411 * TC | TC_WB = writeback & invalidate L2 & L1
1412 * TC | TC_WB | TC_NC = writeback & invalidate L2 for MTYPE == NC
1413 * TC_WB | TC_NC = writeback L2 for MTYPE == NC
1414 * TC | TC_NC = invalidate L2 for MTYPE == NC
1415 * TC | TC_MD = writeback & invalidate L2 metadata (DCC, etc.)
1416 * TCL1 = invalidate L1
1417 */
1418 tc_flags = 0;
1419
1420 if (flags & SI_CONTEXT_INV_L2_METADATA) {
1421 tc_flags = EVENT_TC_ACTION_ENA |
1422 EVENT_TC_MD_ACTION_ENA;
1423 }
1424
1425 /* Ideally flush TC together with CB/DB. */
1426 if (flags & SI_CONTEXT_INV_L2) {
1427 /* Writeback and invalidate everything in L2 & L1. */
1428 tc_flags = EVENT_TC_ACTION_ENA |
1429 EVENT_TC_WB_ACTION_ENA;
1430
1431 /* Clear the flags. */
1432 flags &= ~(SI_CONTEXT_INV_L2 |
1433 SI_CONTEXT_WB_L2 |
1434 SI_CONTEXT_INV_VCACHE);
1435 sctx->num_L2_invalidates++;
1436 }
1437
1438 /* Do the flush (enqueue the event and wait for it). */
1439 va = sctx->wait_mem_scratch->gpu_address;
1440 sctx->wait_mem_number++;
1441
1442 si_cp_release_mem(sctx, cs, cb_db_event, tc_flags,
1443 EOP_DST_SEL_MEM,
1444 EOP_INT_SEL_SEND_DATA_AFTER_WR_CONFIRM,
1445 EOP_DATA_SEL_VALUE_32BIT,
1446 sctx->wait_mem_scratch, va,
1447 sctx->wait_mem_number, SI_NOT_QUERY);
1448 si_cp_wait_mem(sctx, cs, va, sctx->wait_mem_number, 0xffffffff,
1449 WAIT_REG_MEM_EQUAL);
1450 }
1451
1452 /* Make sure ME is idle (it executes most packets) before continuing.
1453 * This prevents read-after-write hazards between PFP and ME.
1454 */
1455 if (sctx->has_graphics &&
1456 (cp_coher_cntl ||
1457 (flags & (SI_CONTEXT_CS_PARTIAL_FLUSH |
1458 SI_CONTEXT_INV_VCACHE |
1459 SI_CONTEXT_INV_L2 |
1460 SI_CONTEXT_WB_L2)))) {
1461 radeon_emit(cs, PKT3(PKT3_PFP_SYNC_ME, 0, 0));
1462 radeon_emit(cs, 0);
1463 }
1464
1465 /* GFX6-GFX8 only:
1466 * When one of the CP_COHER_CNTL.DEST_BASE flags is set, SURFACE_SYNC
1467 * waits for idle, so it should be last. SURFACE_SYNC is done in PFP.
1468 *
1469 * cp_coher_cntl should contain all necessary flags except TC flags
1470 * at this point.
1471 *
1472 * GFX6-GFX7 don't support L2 write-back.
1473 */
1474 if (flags & SI_CONTEXT_INV_L2 ||
1475 (sctx->chip_class <= GFX7 &&
1476 (flags & SI_CONTEXT_WB_L2))) {
1477 /* Invalidate L1 & L2. (L1 is always invalidated on GFX6)
1478 * WB must be set on GFX8+ when TC_ACTION is set.
1479 */
1480 si_emit_surface_sync(sctx, sctx->gfx_cs, cp_coher_cntl |
1481 S_0085F0_TC_ACTION_ENA(1) |
1482 S_0085F0_TCL1_ACTION_ENA(1) |
1483 S_0301F0_TC_WB_ACTION_ENA(sctx->chip_class >= GFX8));
1484 cp_coher_cntl = 0;
1485 sctx->num_L2_invalidates++;
1486 } else {
1487 /* L1 invalidation and L2 writeback must be done separately,
1488 * because both operations can't be done together.
1489 */
1490 if (flags & SI_CONTEXT_WB_L2) {
1491 /* WB = write-back
1492 * NC = apply to non-coherent MTYPEs
1493 * (i.e. MTYPE <= 1, which is what we use everywhere)
1494 *
1495 * WB doesn't work without NC.
1496 */
1497 si_emit_surface_sync(sctx, sctx->gfx_cs, cp_coher_cntl |
1498 S_0301F0_TC_WB_ACTION_ENA(1) |
1499 S_0301F0_TC_NC_ACTION_ENA(1));
1500 cp_coher_cntl = 0;
1501 sctx->num_L2_writebacks++;
1502 }
1503 if (flags & SI_CONTEXT_INV_VCACHE) {
1504 /* Invalidate per-CU VMEM L1. */
1505 si_emit_surface_sync(sctx, sctx->gfx_cs, cp_coher_cntl |
1506 S_0085F0_TCL1_ACTION_ENA(1));
1507 cp_coher_cntl = 0;
1508 }
1509 }
1510
1511 /* If TC flushes haven't cleared this... */
1512 if (cp_coher_cntl)
1513 si_emit_surface_sync(sctx, sctx->gfx_cs, cp_coher_cntl);
1514
1515 if (is_barrier)
1516 si_prim_discard_signal_next_compute_ib_start(sctx);
1517
1518 if (flags & SI_CONTEXT_START_PIPELINE_STATS) {
1519 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
1520 radeon_emit(cs, EVENT_TYPE(V_028A90_PIPELINESTAT_START) |
1521 EVENT_INDEX(0));
1522 } else if (flags & SI_CONTEXT_STOP_PIPELINE_STATS) {
1523 radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
1524 radeon_emit(cs, EVENT_TYPE(V_028A90_PIPELINESTAT_STOP) |
1525 EVENT_INDEX(0));
1526 }
1527
1528 sctx->flags = 0;
1529 }
1530
1531 static void si_get_draw_start_count(struct si_context *sctx,
1532 const struct pipe_draw_info *info,
1533 unsigned *start, unsigned *count)
1534 {
1535 struct pipe_draw_indirect_info *indirect = info->indirect;
1536
1537 if (indirect) {
1538 unsigned indirect_count;
1539 struct pipe_transfer *transfer;
1540 unsigned begin, end;
1541 unsigned map_size;
1542 unsigned *data;
1543
1544 if (indirect->indirect_draw_count) {
1545 data = pipe_buffer_map_range(&sctx->b,
1546 indirect->indirect_draw_count,
1547 indirect->indirect_draw_count_offset,
1548 sizeof(unsigned),
1549 PIPE_TRANSFER_READ, &transfer);
1550
1551 indirect_count = *data;
1552
1553 pipe_buffer_unmap(&sctx->b, transfer);
1554 } else {
1555 indirect_count = indirect->draw_count;
1556 }
1557
1558 if (!indirect_count) {
1559 *start = *count = 0;
1560 return;
1561 }
1562
1563 map_size = (indirect_count - 1) * indirect->stride + 3 * sizeof(unsigned);
1564 data = pipe_buffer_map_range(&sctx->b, indirect->buffer,
1565 indirect->offset, map_size,
1566 PIPE_TRANSFER_READ, &transfer);
1567
1568 begin = UINT_MAX;
1569 end = 0;
1570
1571 for (unsigned i = 0; i < indirect_count; ++i) {
1572 unsigned count = data[0];
1573 unsigned start = data[2];
1574
1575 if (count > 0) {
1576 begin = MIN2(begin, start);
1577 end = MAX2(end, start + count);
1578 }
1579
1580 data += indirect->stride / sizeof(unsigned);
1581 }
1582
1583 pipe_buffer_unmap(&sctx->b, transfer);
1584
1585 if (begin < end) {
1586 *start = begin;
1587 *count = end - begin;
1588 } else {
1589 *start = *count = 0;
1590 }
1591 } else {
1592 *start = info->start;
1593 *count = info->count;
1594 }
1595 }
1596
1597 static void si_emit_all_states(struct si_context *sctx, const struct pipe_draw_info *info,
1598 enum pipe_prim_type prim, unsigned instance_count,
1599 bool primitive_restart, unsigned skip_atom_mask)
1600 {
1601 unsigned num_patches = 0;
1602
1603 si_emit_rasterizer_prim_state(sctx);
1604 if (sctx->tes_shader.cso)
1605 si_emit_derived_tess_state(sctx, info, &num_patches);
1606
1607 /* Emit state atoms. */
1608 unsigned mask = sctx->dirty_atoms & ~skip_atom_mask;
1609 while (mask)
1610 sctx->atoms.array[u_bit_scan(&mask)].emit(sctx);
1611
1612 sctx->dirty_atoms &= skip_atom_mask;
1613
1614 /* Emit states. */
1615 mask = sctx->dirty_states;
1616 while (mask) {
1617 unsigned i = u_bit_scan(&mask);
1618 struct si_pm4_state *state = sctx->queued.array[i];
1619
1620 if (!state || sctx->emitted.array[i] == state)
1621 continue;
1622
1623 si_pm4_emit(sctx, state);
1624 sctx->emitted.array[i] = state;
1625 }
1626 sctx->dirty_states = 0;
1627
1628 /* Emit draw states. */
1629 si_emit_vs_state(sctx, info);
1630 si_emit_draw_registers(sctx, info, prim, num_patches, instance_count,
1631 primitive_restart);
1632 }
1633
1634 static bool
1635 si_all_vs_resources_read_only(struct si_context *sctx,
1636 struct pipe_resource *indexbuf)
1637 {
1638 struct radeon_winsys *ws = sctx->ws;
1639 struct radeon_cmdbuf *cs = sctx->gfx_cs;
1640
1641 /* Index buffer. */
1642 if (indexbuf &&
1643 ws->cs_is_buffer_referenced(cs, si_resource(indexbuf)->buf,
1644 RADEON_USAGE_WRITE))
1645 goto has_write_reference;
1646
1647 /* Vertex buffers. */
1648 struct si_vertex_elements *velems = sctx->vertex_elements;
1649 unsigned num_velems = velems->count;
1650
1651 for (unsigned i = 0; i < num_velems; i++) {
1652 if (!((1 << i) & velems->first_vb_use_mask))
1653 continue;
1654
1655 unsigned vb_index = velems->vertex_buffer_index[i];
1656 struct pipe_resource *res = sctx->vertex_buffer[vb_index].buffer.resource;
1657 if (!res)
1658 continue;
1659
1660 if (ws->cs_is_buffer_referenced(cs, si_resource(res)->buf,
1661 RADEON_USAGE_WRITE))
1662 goto has_write_reference;
1663 }
1664
1665 /* Constant and shader buffers. */
1666 struct si_descriptors *buffers =
1667 &sctx->descriptors[si_const_and_shader_buffer_descriptors_idx(PIPE_SHADER_VERTEX)];
1668 for (unsigned i = 0; i < buffers->num_active_slots; i++) {
1669 unsigned index = buffers->first_active_slot + i;
1670 struct pipe_resource *res =
1671 sctx->const_and_shader_buffers[PIPE_SHADER_VERTEX].buffers[index];
1672 if (!res)
1673 continue;
1674
1675 if (ws->cs_is_buffer_referenced(cs, si_resource(res)->buf,
1676 RADEON_USAGE_WRITE))
1677 goto has_write_reference;
1678 }
1679
1680 /* Samplers. */
1681 struct si_shader_selector *vs = sctx->vs_shader.cso;
1682 if (vs->info.samplers_declared) {
1683 unsigned num_samplers = util_last_bit(vs->info.samplers_declared);
1684
1685 for (unsigned i = 0; i < num_samplers; i++) {
1686 struct pipe_sampler_view *view = sctx->samplers[PIPE_SHADER_VERTEX].views[i];
1687 if (!view)
1688 continue;
1689
1690 if (ws->cs_is_buffer_referenced(cs,
1691 si_resource(view->texture)->buf,
1692 RADEON_USAGE_WRITE))
1693 goto has_write_reference;
1694 }
1695 }
1696
1697 /* Images. */
1698 if (vs->info.images_declared) {
1699 unsigned num_images = util_last_bit(vs->info.images_declared);
1700
1701 for (unsigned i = 0; i < num_images; i++) {
1702 struct pipe_resource *res = sctx->images[PIPE_SHADER_VERTEX].views[i].resource;
1703 if (!res)
1704 continue;
1705
1706 if (ws->cs_is_buffer_referenced(cs, si_resource(res)->buf,
1707 RADEON_USAGE_WRITE))
1708 goto has_write_reference;
1709 }
1710 }
1711
1712 return true;
1713
1714 has_write_reference:
1715 /* If the current gfx IB has enough packets, flush it to remove write
1716 * references to buffers.
1717 */
1718 if (cs->prev_dw + cs->current.cdw > 2048) {
1719 si_flush_gfx_cs(sctx, RADEON_FLUSH_ASYNC_START_NEXT_GFX_IB_NOW, NULL);
1720 assert(si_all_vs_resources_read_only(sctx, indexbuf));
1721 return true;
1722 }
1723 return false;
1724 }
1725
1726 static ALWAYS_INLINE bool pd_msg(const char *s)
1727 {
1728 if (SI_PRIM_DISCARD_DEBUG)
1729 printf("PD failed: %s\n", s);
1730 return false;
1731 }
1732
1733 static void si_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info *info)
1734 {
1735 struct si_context *sctx = (struct si_context *)ctx;
1736 struct si_state_rasterizer *rs = sctx->queued.named.rasterizer;
1737 struct pipe_resource *indexbuf = info->index.resource;
1738 unsigned dirty_tex_counter, dirty_buf_counter;
1739 enum pipe_prim_type rast_prim, prim = info->mode;
1740 unsigned index_size = info->index_size;
1741 unsigned index_offset = info->indirect ? info->start * index_size : 0;
1742 unsigned instance_count = info->instance_count;
1743 bool primitive_restart = info->primitive_restart &&
1744 (!sctx->screen->options.prim_restart_tri_strips_only ||
1745 (prim != PIPE_PRIM_TRIANGLE_STRIP &&
1746 prim != PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY));
1747
1748 if (likely(!info->indirect)) {
1749 /* GFX6-GFX7 treat instance_count==0 as instance_count==1. There is
1750 * no workaround for indirect draws, but we can at least skip
1751 * direct draws.
1752 */
1753 if (unlikely(!instance_count))
1754 return;
1755
1756 /* Handle count == 0. */
1757 if (unlikely(!info->count &&
1758 (index_size || !info->count_from_stream_output)))
1759 return;
1760 }
1761
1762 if (unlikely(!sctx->vs_shader.cso ||
1763 !rs ||
1764 (!sctx->ps_shader.cso && !rs->rasterizer_discard) ||
1765 (!!sctx->tes_shader.cso != (prim == PIPE_PRIM_PATCHES)))) {
1766 assert(0);
1767 return;
1768 }
1769
1770 /* Recompute and re-emit the texture resource states if needed. */
1771 dirty_tex_counter = p_atomic_read(&sctx->screen->dirty_tex_counter);
1772 if (unlikely(dirty_tex_counter != sctx->last_dirty_tex_counter)) {
1773 sctx->last_dirty_tex_counter = dirty_tex_counter;
1774 sctx->framebuffer.dirty_cbufs |=
1775 ((1 << sctx->framebuffer.state.nr_cbufs) - 1);
1776 sctx->framebuffer.dirty_zsbuf = true;
1777 si_mark_atom_dirty(sctx, &sctx->atoms.s.framebuffer);
1778 si_update_all_texture_descriptors(sctx);
1779 }
1780
1781 dirty_buf_counter = p_atomic_read(&sctx->screen->dirty_buf_counter);
1782 if (unlikely(dirty_buf_counter != sctx->last_dirty_buf_counter)) {
1783 sctx->last_dirty_buf_counter = dirty_buf_counter;
1784 /* Rebind all buffers unconditionally. */
1785 si_rebind_buffer(sctx, NULL);
1786 }
1787
1788 si_decompress_textures(sctx, u_bit_consecutive(0, SI_NUM_GRAPHICS_SHADERS));
1789
1790 /* Set the rasterization primitive type.
1791 *
1792 * This must be done after si_decompress_textures, which can call
1793 * draw_vbo recursively, and before si_update_shaders, which uses
1794 * current_rast_prim for this draw_vbo call. */
1795 if (sctx->gs_shader.cso) {
1796 /* Only possibilities: POINTS, LINE_STRIP, TRIANGLES */
1797 rast_prim = sctx->gs_shader.cso->rast_prim;
1798 } else if (sctx->tes_shader.cso) {
1799 /* Only possibilities: POINTS, LINE_STRIP, TRIANGLES */
1800 rast_prim = sctx->tes_shader.cso->rast_prim;
1801 } else if (util_rast_prim_is_triangles(prim)) {
1802 rast_prim = PIPE_PRIM_TRIANGLES;
1803 } else {
1804 /* Only possibilities, POINTS, LINE*, RECTANGLES */
1805 rast_prim = prim;
1806 }
1807
1808 if (rast_prim != sctx->current_rast_prim) {
1809 if (util_prim_is_points_or_lines(sctx->current_rast_prim) !=
1810 util_prim_is_points_or_lines(rast_prim))
1811 si_mark_atom_dirty(sctx, &sctx->atoms.s.guardband);
1812
1813 sctx->current_rast_prim = rast_prim;
1814 sctx->do_update_shaders = true;
1815 }
1816
1817 if (sctx->tes_shader.cso &&
1818 sctx->screen->has_ls_vgpr_init_bug) {
1819 /* Determine whether the LS VGPR fix should be applied.
1820 *
1821 * It is only required when num input CPs > num output CPs,
1822 * which cannot happen with the fixed function TCS. We should
1823 * also update this bit when switching from TCS to fixed
1824 * function TCS.
1825 */
1826 struct si_shader_selector *tcs = sctx->tcs_shader.cso;
1827 bool ls_vgpr_fix =
1828 tcs &&
1829 info->vertices_per_patch >
1830 tcs->info.properties[TGSI_PROPERTY_TCS_VERTICES_OUT];
1831
1832 if (ls_vgpr_fix != sctx->ls_vgpr_fix) {
1833 sctx->ls_vgpr_fix = ls_vgpr_fix;
1834 sctx->do_update_shaders = true;
1835 }
1836 }
1837
1838 if (sctx->chip_class <= GFX9 && sctx->gs_shader.cso) {
1839 /* Determine whether the GS triangle strip adjacency fix should
1840 * be applied. Rotate every other triangle if
1841 * - triangle strips with adjacency are fed to the GS and
1842 * - primitive restart is disabled (the rotation doesn't help
1843 * when the restart occurs after an odd number of triangles).
1844 */
1845 bool gs_tri_strip_adj_fix =
1846 !sctx->tes_shader.cso &&
1847 prim == PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY &&
1848 !primitive_restart;
1849
1850 if (gs_tri_strip_adj_fix != sctx->gs_tri_strip_adj_fix) {
1851 sctx->gs_tri_strip_adj_fix = gs_tri_strip_adj_fix;
1852 sctx->do_update_shaders = true;
1853 }
1854 }
1855
1856 if (index_size) {
1857 /* Translate or upload, if needed. */
1858 /* 8-bit indices are supported on GFX8. */
1859 if (sctx->chip_class <= GFX7 && index_size == 1) {
1860 unsigned start, count, start_offset, size, offset;
1861 void *ptr;
1862
1863 si_get_draw_start_count(sctx, info, &start, &count);
1864 start_offset = start * 2;
1865 size = count * 2;
1866
1867 indexbuf = NULL;
1868 u_upload_alloc(ctx->stream_uploader, start_offset,
1869 size,
1870 si_optimal_tcc_alignment(sctx, size),
1871 &offset, &indexbuf, &ptr);
1872 if (!indexbuf)
1873 return;
1874
1875 util_shorten_ubyte_elts_to_userptr(&sctx->b, info, 0, 0,
1876 index_offset + start,
1877 count, ptr);
1878
1879 /* info->start will be added by the drawing code */
1880 index_offset = offset - start_offset;
1881 index_size = 2;
1882 } else if (info->has_user_indices) {
1883 unsigned start_offset;
1884
1885 assert(!info->indirect);
1886 start_offset = info->start * index_size;
1887
1888 indexbuf = NULL;
1889 u_upload_data(ctx->stream_uploader, start_offset,
1890 info->count * index_size,
1891 sctx->screen->info.tcc_cache_line_size,
1892 (char*)info->index.user + start_offset,
1893 &index_offset, &indexbuf);
1894 if (!indexbuf)
1895 return;
1896
1897 /* info->start will be added by the drawing code */
1898 index_offset -= start_offset;
1899 } else if (sctx->chip_class <= GFX7 &&
1900 si_resource(indexbuf)->TC_L2_dirty) {
1901 /* GFX8 reads index buffers through TC L2, so it doesn't
1902 * need this. */
1903 sctx->flags |= SI_CONTEXT_WB_L2;
1904 si_resource(indexbuf)->TC_L2_dirty = false;
1905 }
1906 }
1907
1908 bool dispatch_prim_discard_cs = false;
1909 bool prim_discard_cs_instancing = false;
1910 unsigned original_index_size = index_size;
1911 unsigned direct_count = 0;
1912
1913 if (info->indirect) {
1914 struct pipe_draw_indirect_info *indirect = info->indirect;
1915
1916 /* Add the buffer size for memory checking in need_cs_space. */
1917 si_context_add_resource_size(sctx, indirect->buffer);
1918
1919 /* Indirect buffers use TC L2 on GFX9, but not older hw. */
1920 if (sctx->chip_class <= GFX8) {
1921 if (si_resource(indirect->buffer)->TC_L2_dirty) {
1922 sctx->flags |= SI_CONTEXT_WB_L2;
1923 si_resource(indirect->buffer)->TC_L2_dirty = false;
1924 }
1925
1926 if (indirect->indirect_draw_count &&
1927 si_resource(indirect->indirect_draw_count)->TC_L2_dirty) {
1928 sctx->flags |= SI_CONTEXT_WB_L2;
1929 si_resource(indirect->indirect_draw_count)->TC_L2_dirty = false;
1930 }
1931 }
1932 } else {
1933 /* Multiply by 3 for strips and fans to get an approximate vertex
1934 * count as triangles. */
1935 direct_count = info->count * instance_count *
1936 (prim == PIPE_PRIM_TRIANGLES ? 1 : 3);
1937 }
1938
1939 /* Determine if we can use the primitive discard compute shader. */
1940 if (si_compute_prim_discard_enabled(sctx) &&
1941 (direct_count > sctx->prim_discard_vertex_count_threshold ?
1942 (sctx->compute_num_verts_rejected += direct_count, true) : /* Add, then return true. */
1943 (sctx->compute_num_verts_ineligible += direct_count, false)) && /* Add, then return false. */
1944 (!info->count_from_stream_output || pd_msg("draw_opaque")) &&
1945 (primitive_restart ?
1946 /* Supported prim types with primitive restart: */
1947 (prim == PIPE_PRIM_TRIANGLE_STRIP || pd_msg("bad prim type with primitive restart")) &&
1948 /* Disallow instancing with primitive restart: */
1949 (instance_count == 1 || pd_msg("instance_count > 1 with primitive restart")) :
1950 /* Supported prim types without primitive restart + allow instancing: */
1951 (1 << prim) & ((1 << PIPE_PRIM_TRIANGLES) |
1952 (1 << PIPE_PRIM_TRIANGLE_STRIP) |
1953 (1 << PIPE_PRIM_TRIANGLE_FAN)) &&
1954 /* Instancing is limited to 16-bit indices, because InstanceID is packed into VertexID. */
1955 /* TODO: DrawArraysInstanced doesn't sometimes work, so it's disabled. */
1956 (instance_count == 1 ||
1957 (instance_count <= USHRT_MAX && index_size && index_size <= 2) ||
1958 pd_msg("instance_count too large or index_size == 4 or DrawArraysInstanced"))) &&
1959 (info->drawid == 0 || !sctx->vs_shader.cso->info.uses_drawid || pd_msg("draw_id > 0")) &&
1960 (!sctx->render_cond || pd_msg("render condition")) &&
1961 /* Forced enablement ignores pipeline statistics queries. */
1962 (sctx->screen->debug_flags & (DBG(PD) | DBG(ALWAYS_PD)) ||
1963 (!sctx->num_pipeline_stat_queries && !sctx->streamout.prims_gen_query_enabled) ||
1964 pd_msg("pipestat or primgen query")) &&
1965 (!sctx->vertex_elements->instance_divisor_is_fetched || pd_msg("loads instance divisors")) &&
1966 (!sctx->tes_shader.cso || pd_msg("uses tess")) &&
1967 (!sctx->gs_shader.cso || pd_msg("uses GS")) &&
1968 (!sctx->ps_shader.cso->info.uses_primid || pd_msg("PS uses PrimID")) &&
1969 #if SI_PRIM_DISCARD_DEBUG /* same as cso->prim_discard_cs_allowed */
1970 (!sctx->vs_shader.cso->info.uses_bindless_images || pd_msg("uses bindless images")) &&
1971 (!sctx->vs_shader.cso->info.uses_bindless_samplers || pd_msg("uses bindless samplers")) &&
1972 (!sctx->vs_shader.cso->info.writes_memory || pd_msg("writes memory")) &&
1973 (!sctx->vs_shader.cso->info.writes_viewport_index || pd_msg("writes viewport index")) &&
1974 !sctx->vs_shader.cso->info.properties[TGSI_PROPERTY_VS_WINDOW_SPACE_POSITION] &&
1975 !sctx->vs_shader.cso->so.num_outputs &&
1976 #else
1977 (sctx->vs_shader.cso->prim_discard_cs_allowed || pd_msg("VS shader uses unsupported features")) &&
1978 #endif
1979 /* Check that all buffers are used for read only, because compute
1980 * dispatches can run ahead. */
1981 (si_all_vs_resources_read_only(sctx, index_size ? indexbuf : NULL) || pd_msg("write reference"))) {
1982 switch (si_prepare_prim_discard_or_split_draw(sctx, info, primitive_restart)) {
1983 case SI_PRIM_DISCARD_ENABLED:
1984 original_index_size = index_size;
1985 prim_discard_cs_instancing = instance_count > 1;
1986 dispatch_prim_discard_cs = true;
1987
1988 /* The compute shader changes/lowers the following: */
1989 prim = PIPE_PRIM_TRIANGLES;
1990 index_size = 4;
1991 instance_count = 1;
1992 primitive_restart = false;
1993 sctx->compute_num_verts_rejected -= direct_count;
1994 sctx->compute_num_verts_accepted += direct_count;
1995 break;
1996 case SI_PRIM_DISCARD_DISABLED:
1997 break;
1998 case SI_PRIM_DISCARD_DRAW_SPLIT:
1999 sctx->compute_num_verts_rejected -= direct_count;
2000 goto return_cleanup;
2001 }
2002 }
2003
2004 if (prim_discard_cs_instancing != sctx->prim_discard_cs_instancing) {
2005 sctx->prim_discard_cs_instancing = prim_discard_cs_instancing;
2006 sctx->do_update_shaders = true;
2007 }
2008
2009 if (sctx->do_update_shaders && !si_update_shaders(sctx))
2010 goto return_cleanup;
2011
2012 si_need_gfx_cs_space(sctx);
2013
2014 if (sctx->bo_list_add_all_gfx_resources)
2015 si_gfx_resources_add_all_to_bo_list(sctx);
2016
2017 /* Since we've called si_context_add_resource_size for vertex buffers,
2018 * this must be called after si_need_cs_space, because we must let
2019 * need_cs_space flush before we add buffers to the buffer list.
2020 */
2021 if (!si_upload_vertex_buffer_descriptors(sctx))
2022 goto return_cleanup;
2023
2024 /* Vega10/Raven scissor bug workaround. When any context register is
2025 * written (i.e. the GPU rolls the context), PA_SC_VPORT_SCISSOR
2026 * registers must be written too.
2027 */
2028 bool has_gfx9_scissor_bug = sctx->screen->has_gfx9_scissor_bug;
2029 unsigned masked_atoms = 0;
2030
2031 if (has_gfx9_scissor_bug) {
2032 masked_atoms |= si_get_atom_bit(sctx, &sctx->atoms.s.scissors);
2033
2034 if (info->count_from_stream_output ||
2035 sctx->dirty_atoms & si_atoms_that_always_roll_context() ||
2036 sctx->dirty_states & si_states_that_always_roll_context())
2037 sctx->context_roll = true;
2038 }
2039
2040 /* Use optimal packet order based on whether we need to sync the pipeline. */
2041 if (unlikely(sctx->flags & (SI_CONTEXT_FLUSH_AND_INV_CB |
2042 SI_CONTEXT_FLUSH_AND_INV_DB |
2043 SI_CONTEXT_PS_PARTIAL_FLUSH |
2044 SI_CONTEXT_CS_PARTIAL_FLUSH))) {
2045 /* If we have to wait for idle, set all states first, so that all
2046 * SET packets are processed in parallel with previous draw calls.
2047 * Then draw and prefetch at the end. This ensures that the time
2048 * the CUs are idle is very short.
2049 */
2050 if (unlikely(sctx->flags & SI_CONTEXT_FLUSH_FOR_RENDER_COND))
2051 masked_atoms |= si_get_atom_bit(sctx, &sctx->atoms.s.render_cond);
2052
2053 if (!si_upload_graphics_shader_descriptors(sctx))
2054 goto return_cleanup;
2055
2056 /* Emit all states except possibly render condition. */
2057 si_emit_all_states(sctx, info, prim, instance_count,
2058 primitive_restart, masked_atoms);
2059 sctx->emit_cache_flush(sctx);
2060 /* <-- CUs are idle here. */
2061
2062 if (si_is_atom_dirty(sctx, &sctx->atoms.s.render_cond))
2063 sctx->atoms.s.render_cond.emit(sctx);
2064
2065 if (has_gfx9_scissor_bug &&
2066 (sctx->context_roll ||
2067 si_is_atom_dirty(sctx, &sctx->atoms.s.scissors)))
2068 sctx->atoms.s.scissors.emit(sctx);
2069
2070 sctx->dirty_atoms = 0;
2071
2072 si_emit_draw_packets(sctx, info, indexbuf, index_size, index_offset,
2073 instance_count, dispatch_prim_discard_cs,
2074 original_index_size);
2075 /* <-- CUs are busy here. */
2076
2077 /* Start prefetches after the draw has been started. Both will run
2078 * in parallel, but starting the draw first is more important.
2079 */
2080 if (sctx->chip_class >= GFX7 && sctx->prefetch_L2_mask)
2081 cik_emit_prefetch_L2(sctx, false);
2082 } else {
2083 /* If we don't wait for idle, start prefetches first, then set
2084 * states, and draw at the end.
2085 */
2086 if (sctx->flags)
2087 sctx->emit_cache_flush(sctx);
2088
2089 /* Only prefetch the API VS and VBO descriptors. */
2090 if (sctx->chip_class >= GFX7 && sctx->prefetch_L2_mask)
2091 cik_emit_prefetch_L2(sctx, true);
2092
2093 if (!si_upload_graphics_shader_descriptors(sctx))
2094 goto return_cleanup;
2095
2096 si_emit_all_states(sctx, info, prim, instance_count,
2097 primitive_restart, masked_atoms);
2098
2099 if (has_gfx9_scissor_bug &&
2100 (sctx->context_roll ||
2101 si_is_atom_dirty(sctx, &sctx->atoms.s.scissors)))
2102 sctx->atoms.s.scissors.emit(sctx);
2103
2104 sctx->dirty_atoms = 0;
2105
2106 si_emit_draw_packets(sctx, info, indexbuf, index_size, index_offset,
2107 instance_count, dispatch_prim_discard_cs,
2108 original_index_size);
2109
2110 /* Prefetch the remaining shaders after the draw has been
2111 * started. */
2112 if (sctx->chip_class >= GFX7 && sctx->prefetch_L2_mask)
2113 cik_emit_prefetch_L2(sctx, false);
2114 }
2115
2116 /* Clear the context roll flag after the draw call. */
2117 sctx->context_roll = false;
2118
2119 if (unlikely(sctx->current_saved_cs)) {
2120 si_trace_emit(sctx);
2121 si_log_draw_state(sctx, sctx->log);
2122 }
2123
2124 /* Workaround for a VGT hang when streamout is enabled.
2125 * It must be done after drawing. */
2126 if ((sctx->family == CHIP_HAWAII ||
2127 sctx->family == CHIP_TONGA ||
2128 sctx->family == CHIP_FIJI) &&
2129 si_get_strmout_en(sctx)) {
2130 sctx->flags |= SI_CONTEXT_VGT_STREAMOUT_SYNC;
2131 }
2132
2133 if (unlikely(sctx->decompression_enabled)) {
2134 sctx->num_decompress_calls++;
2135 } else {
2136 sctx->num_draw_calls++;
2137 if (sctx->framebuffer.state.nr_cbufs > 1)
2138 sctx->num_mrt_draw_calls++;
2139 if (primitive_restart)
2140 sctx->num_prim_restart_calls++;
2141 if (G_0286E8_WAVESIZE(sctx->spi_tmpring_size))
2142 sctx->num_spill_draw_calls++;
2143 }
2144
2145 return_cleanup:
2146 if (index_size && indexbuf != info->index.resource)
2147 pipe_resource_reference(&indexbuf, NULL);
2148 }
2149
2150 static void
2151 si_draw_rectangle(struct blitter_context *blitter,
2152 void *vertex_elements_cso,
2153 blitter_get_vs_func get_vs,
2154 int x1, int y1, int x2, int y2,
2155 float depth, unsigned num_instances,
2156 enum blitter_attrib_type type,
2157 const union blitter_attrib *attrib)
2158 {
2159 struct pipe_context *pipe = util_blitter_get_pipe(blitter);
2160 struct si_context *sctx = (struct si_context*)pipe;
2161
2162 /* Pack position coordinates as signed int16. */
2163 sctx->vs_blit_sh_data[0] = (uint32_t)(x1 & 0xffff) |
2164 ((uint32_t)(y1 & 0xffff) << 16);
2165 sctx->vs_blit_sh_data[1] = (uint32_t)(x2 & 0xffff) |
2166 ((uint32_t)(y2 & 0xffff) << 16);
2167 sctx->vs_blit_sh_data[2] = fui(depth);
2168
2169 switch (type) {
2170 case UTIL_BLITTER_ATTRIB_COLOR:
2171 memcpy(&sctx->vs_blit_sh_data[3], attrib->color,
2172 sizeof(float)*4);
2173 break;
2174 case UTIL_BLITTER_ATTRIB_TEXCOORD_XY:
2175 case UTIL_BLITTER_ATTRIB_TEXCOORD_XYZW:
2176 memcpy(&sctx->vs_blit_sh_data[3], &attrib->texcoord,
2177 sizeof(attrib->texcoord));
2178 break;
2179 case UTIL_BLITTER_ATTRIB_NONE:;
2180 }
2181
2182 pipe->bind_vs_state(pipe, si_get_blitter_vs(sctx, type, num_instances));
2183
2184 struct pipe_draw_info info = {};
2185 info.mode = SI_PRIM_RECTANGLE_LIST;
2186 info.count = 3;
2187 info.instance_count = num_instances;
2188
2189 /* Don't set per-stage shader pointers for VS. */
2190 sctx->shader_pointers_dirty &= ~SI_DESCS_SHADER_MASK(VERTEX);
2191 sctx->vertex_buffer_pointer_dirty = false;
2192
2193 si_draw_vbo(pipe, &info);
2194 }
2195
2196 void si_trace_emit(struct si_context *sctx)
2197 {
2198 struct radeon_cmdbuf *cs = sctx->gfx_cs;
2199 uint32_t trace_id = ++sctx->current_saved_cs->trace_id;
2200
2201 si_cp_write_data(sctx, sctx->current_saved_cs->trace_buf,
2202 0, 4, V_370_MEM, V_370_ME, &trace_id);
2203
2204 radeon_emit(cs, PKT3(PKT3_NOP, 0, 0));
2205 radeon_emit(cs, AC_ENCODE_TRACE_POINT(trace_id));
2206
2207 if (sctx->log)
2208 u_log_flush(sctx->log);
2209 }
2210
2211 void si_init_draw_functions(struct si_context *sctx)
2212 {
2213 sctx->b.draw_vbo = si_draw_vbo;
2214
2215 sctx->blitter->draw_rectangle = si_draw_rectangle;
2216
2217 si_init_ia_multi_vgt_param_table(sctx);
2218 }