2 * Copyright 2012 Advanced Micro Devices, Inc.
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:
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
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.
25 #include "si_build_pm4.h"
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"
36 /* special primitive types */
37 #define SI_PRIM_RECTANGLE_LIST PIPE_PRIM_MAX
39 static unsigned si_conv_pipe_prim(unsigned mode
)
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
59 assert(mode
< ARRAY_SIZE(prim_conv
));
60 return prim_conv
[mode
];
64 * This calculates the LDS size for tessellation shaders (VS, TCS, TES).
65 * LS.LDS_SIZE is shared by all 3 shader stages.
67 * The information about LDS and other non-compile-time parameters is then
68 * written to userdata SGPRs.
70 static void si_emit_derived_tess_state(struct si_context
*sctx
,
71 const struct pipe_draw_info
*info
,
72 unsigned *num_patches
)
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
;
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
;
99 ls_current
= sctx
->fixed_func_tcs_shader
.current
;
101 ls
= ls_current
->key
.part
.tcs
.ls
;
103 ls_current
= sctx
->vs_shader
.current
;
104 ls
= sctx
->vs_shader
.cso
;
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
;
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
;
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
);
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
);
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 */
138 input_vertex_size
= ls
->lshs_vertex_stride
;
139 output_vertex_size
= num_tcs_outputs
* 16;
141 input_patch_size
= num_tcs_input_cp
* input_vertex_size
;
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;
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.
150 unsigned max_verts_per_patch
= MAX2(num_tcs_input_cp
, num_tcs_output_cp
);
151 *num_patches
= 256 / max_verts_per_patch
;
153 /* Make sure that the data fits in LDS. This assumes the shaders only
154 * use LDS for the inputs and outputs.
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.
160 hardware_lds_size
= 32768;
161 *num_patches
= MIN2(*num_patches
, hardware_lds_size
/ (input_patch_size
+
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) /
169 /* Not necessary for correctness, but improves performance.
170 * The hardware can do more, but the radeonsi shader constant is
173 *num_patches
= MIN2(*num_patches
, 63); /* triangles: 3 full waves except 3 lanes */
175 /* When distributed tessellation is unsupported, switch between SEs
176 * at a higher frequency to compensate for it.
178 if (!sctx
->screen
->has_distributed_tess
&& sctx
->screen
->info
.max_se
> 1)
179 *num_patches
= MIN2(*num_patches
, 16); /* recommended */
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.
185 unsigned temp_verts_per_tg
= *num_patches
* max_verts_per_patch
;
186 if (temp_verts_per_tg
> 64 && temp_verts_per_tg
% 64 < 48)
187 *num_patches
= (temp_verts_per_tg
& ~63) / max_verts_per_patch
;
189 if (sctx
->chip_class
== GFX6
) {
190 /* GFX6 bug workaround, related to power management. Limit LS-HS
191 * threadgroups to only one wave.
193 unsigned one_wave
= 64 / max_verts_per_patch
;
194 *num_patches
= MIN2(*num_patches
, one_wave
);
197 /* The VGT HS block increments the patch ID unconditionally
198 * within a single threadgroup. This results in incorrect
199 * patch IDs when instanced draws are used.
201 * The intended solution is to restrict threadgroups to
202 * a single instance by setting SWITCH_ON_EOI, which
203 * should cause IA to split instances up. However, this
204 * doesn't work correctly on GFX6 when there is no other
207 if (has_primid_instancing_bug
&& tess_uses_primid
)
210 sctx
->last_num_patches
= *num_patches
;
212 output_patch0_offset
= input_patch_size
* *num_patches
;
213 perpatch_output_offset
= output_patch0_offset
+ pervertex_output_patch_size
;
215 /* Compute userdata SGPRs. */
216 assert(((input_vertex_size
/ 4) & ~0xff) == 0);
217 assert(((output_vertex_size
/ 4) & ~0xff) == 0);
218 assert(((input_patch_size
/ 4) & ~0x1fff) == 0);
219 assert(((output_patch_size
/ 4) & ~0x1fff) == 0);
220 assert(((output_patch0_offset
/ 16) & ~0xffff) == 0);
221 assert(((perpatch_output_offset
/ 16) & ~0xffff) == 0);
222 assert(num_tcs_input_cp
<= 32);
223 assert(num_tcs_output_cp
<= 32);
225 uint64_t ring_va
= si_resource(sctx
->tess_rings
)->gpu_address
;
226 assert((ring_va
& u_bit_consecutive(0, 19)) == 0);
228 tcs_in_layout
= S_VS_STATE_LS_OUT_PATCH_SIZE(input_patch_size
/ 4) |
229 S_VS_STATE_LS_OUT_VERTEX_SIZE(input_vertex_size
/ 4);
230 tcs_out_layout
= (output_patch_size
/ 4) |
231 (num_tcs_input_cp
<< 13) |
233 tcs_out_offsets
= (output_patch0_offset
/ 16) |
234 ((perpatch_output_offset
/ 16) << 16);
235 offchip_layout
= *num_patches
|
236 (num_tcs_output_cp
<< 6) |
237 (pervertex_output_patch_size
* *num_patches
<< 12);
239 /* Compute the LDS size. */
240 lds_size
= output_patch0_offset
+ output_patch_size
* *num_patches
;
242 if (sctx
->chip_class
>= GFX7
) {
243 assert(lds_size
<= 65536);
244 lds_size
= align(lds_size
, 512) / 512;
246 assert(lds_size
<= 32768);
247 lds_size
= align(lds_size
, 256) / 256;
250 /* Set SI_SGPR_VS_STATE_BITS. */
251 sctx
->current_vs_state
&= C_VS_STATE_LS_OUT_PATCH_SIZE
&
252 C_VS_STATE_LS_OUT_VERTEX_SIZE
;
253 sctx
->current_vs_state
|= tcs_in_layout
;
255 /* We should be able to support in-shader LDS use with LLVM >= 9
256 * by just adding the lds_sizes together, but it has never
258 assert(ls_current
->config
.lds_size
== 0);
260 if (sctx
->chip_class
>= GFX9
) {
261 unsigned hs_rsrc2
= ls_current
->config
.rsrc2
|
262 S_00B42C_LDS_SIZE_GFX9(lds_size
);
264 radeon_set_sh_reg(cs
, R_00B42C_SPI_SHADER_PGM_RSRC2_HS
, hs_rsrc2
);
266 /* Set userdata SGPRs for merged LS-HS. */
267 radeon_set_sh_reg_seq(cs
,
268 R_00B430_SPI_SHADER_USER_DATA_LS_0
+
269 GFX9_SGPR_TCS_OFFCHIP_LAYOUT
* 4, 3);
270 radeon_emit(cs
, offchip_layout
);
271 radeon_emit(cs
, tcs_out_offsets
);
272 radeon_emit(cs
, tcs_out_layout
);
274 unsigned ls_rsrc2
= ls_current
->config
.rsrc2
;
276 si_multiwave_lds_size_workaround(sctx
->screen
, &lds_size
);
277 ls_rsrc2
|= S_00B52C_LDS_SIZE(lds_size
);
279 /* Due to a hw bug, RSRC2_LS must be written twice with another
280 * LS register written in between. */
281 if (sctx
->chip_class
== GFX7
&& sctx
->family
!= CHIP_HAWAII
)
282 radeon_set_sh_reg(cs
, R_00B52C_SPI_SHADER_PGM_RSRC2_LS
, ls_rsrc2
);
283 radeon_set_sh_reg_seq(cs
, R_00B528_SPI_SHADER_PGM_RSRC1_LS
, 2);
284 radeon_emit(cs
, ls_current
->config
.rsrc1
);
285 radeon_emit(cs
, ls_rsrc2
);
287 /* Set userdata SGPRs for TCS. */
288 radeon_set_sh_reg_seq(cs
,
289 R_00B430_SPI_SHADER_USER_DATA_HS_0
+ GFX6_SGPR_TCS_OFFCHIP_LAYOUT
* 4, 4);
290 radeon_emit(cs
, offchip_layout
);
291 radeon_emit(cs
, tcs_out_offsets
);
292 radeon_emit(cs
, tcs_out_layout
);
293 radeon_emit(cs
, tcs_in_layout
);
296 /* Set userdata SGPRs for TES. */
297 radeon_set_sh_reg_seq(cs
, tes_sh_base
+ SI_SGPR_TES_OFFCHIP_LAYOUT
* 4, 2);
298 radeon_emit(cs
, offchip_layout
);
299 radeon_emit(cs
, ring_va
);
301 ls_hs_config
= S_028B58_NUM_PATCHES(*num_patches
) |
302 S_028B58_HS_NUM_INPUT_CP(num_tcs_input_cp
) |
303 S_028B58_HS_NUM_OUTPUT_CP(num_tcs_output_cp
);
305 if (sctx
->last_ls_hs_config
!= ls_hs_config
) {
306 if (sctx
->chip_class
>= GFX7
) {
307 radeon_set_context_reg_idx(cs
, R_028B58_VGT_LS_HS_CONFIG
, 2,
310 radeon_set_context_reg(cs
, R_028B58_VGT_LS_HS_CONFIG
,
313 sctx
->last_ls_hs_config
= ls_hs_config
;
314 sctx
->context_roll
= true;
318 static unsigned si_num_prims_for_vertices(const struct pipe_draw_info
*info
,
319 enum pipe_prim_type prim
)
322 case PIPE_PRIM_PATCHES
:
323 return info
->count
/ info
->vertices_per_patch
;
324 case PIPE_PRIM_POLYGON
:
325 return info
->count
>= 3;
326 case SI_PRIM_RECTANGLE_LIST
:
327 return info
->count
/ 3;
329 return u_decomposed_prims_for_vertices(prim
, info
->count
);
334 si_get_init_multi_vgt_param(struct si_screen
*sscreen
,
335 union si_vgt_param_key
*key
)
337 STATIC_ASSERT(sizeof(union si_vgt_param_key
) == 4);
338 unsigned max_primgroup_in_wave
= 2;
340 /* SWITCH_ON_EOP(0) is always preferable. */
341 bool wd_switch_on_eop
= false;
342 bool ia_switch_on_eop
= false;
343 bool ia_switch_on_eoi
= false;
344 bool partial_vs_wave
= false;
345 bool partial_es_wave
= false;
347 if (key
->u
.uses_tess
) {
348 /* SWITCH_ON_EOI must be set if PrimID is used. */
349 if (key
->u
.tess_uses_prim_id
)
350 ia_switch_on_eoi
= true;
352 /* Bug with tessellation and GS on Bonaire and older 2 SE chips. */
353 if ((sscreen
->info
.family
== CHIP_TAHITI
||
354 sscreen
->info
.family
== CHIP_PITCAIRN
||
355 sscreen
->info
.family
== CHIP_BONAIRE
) &&
357 partial_vs_wave
= true;
359 /* Needed for 028B6C_DISTRIBUTION_MODE != 0. (implies >= GFX8) */
360 if (sscreen
->has_distributed_tess
) {
361 if (key
->u
.uses_gs
) {
362 if (sscreen
->info
.chip_class
== GFX8
)
363 partial_es_wave
= true;
365 partial_vs_wave
= true;
370 /* This is a hardware requirement. */
371 if (key
->u
.line_stipple_enabled
||
372 (sscreen
->debug_flags
& DBG(SWITCH_ON_EOP
))) {
373 ia_switch_on_eop
= true;
374 wd_switch_on_eop
= true;
377 if (sscreen
->info
.chip_class
>= GFX7
) {
378 /* WD_SWITCH_ON_EOP has no effect on GPUs with less than
379 * 4 shader engines. Set 1 to pass the assertion below.
380 * The other cases are hardware requirements.
382 * Polaris supports primitive restart with WD_SWITCH_ON_EOP=0
383 * for points, line strips, and tri strips.
385 if (sscreen
->info
.max_se
<= 2 ||
386 key
->u
.prim
== PIPE_PRIM_POLYGON
||
387 key
->u
.prim
== PIPE_PRIM_LINE_LOOP
||
388 key
->u
.prim
== PIPE_PRIM_TRIANGLE_FAN
||
389 key
->u
.prim
== PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY
||
390 (key
->u
.primitive_restart
&&
391 (sscreen
->info
.family
< CHIP_POLARIS10
||
392 (key
->u
.prim
!= PIPE_PRIM_POINTS
&&
393 key
->u
.prim
!= PIPE_PRIM_LINE_STRIP
&&
394 key
->u
.prim
!= PIPE_PRIM_TRIANGLE_STRIP
))) ||
395 key
->u
.count_from_stream_output
)
396 wd_switch_on_eop
= true;
398 /* Hawaii hangs if instancing is enabled and WD_SWITCH_ON_EOP is 0.
399 * We don't know that for indirect drawing, so treat it as
400 * always problematic. */
401 if (sscreen
->info
.family
== CHIP_HAWAII
&&
402 key
->u
.uses_instancing
)
403 wd_switch_on_eop
= true;
405 /* Performance recommendation for 4 SE Gfx7-8 parts if
406 * instances are smaller than a primgroup.
407 * Assume indirect draws always use small instances.
408 * This is needed for good VS wave utilization.
410 if (sscreen
->info
.chip_class
<= GFX8
&&
411 sscreen
->info
.max_se
== 4 &&
412 key
->u
.multi_instances_smaller_than_primgroup
)
413 wd_switch_on_eop
= true;
415 /* Required on GFX7 and later. */
416 if (sscreen
->info
.max_se
== 4 && !wd_switch_on_eop
)
417 ia_switch_on_eoi
= true;
419 /* HW engineers suggested that PARTIAL_VS_WAVE_ON should be set
420 * to work around a GS hang.
422 if (key
->u
.uses_gs
&&
423 (sscreen
->info
.family
== CHIP_TONGA
||
424 sscreen
->info
.family
== CHIP_FIJI
||
425 sscreen
->info
.family
== CHIP_POLARIS10
||
426 sscreen
->info
.family
== CHIP_POLARIS11
||
427 sscreen
->info
.family
== CHIP_POLARIS12
||
428 sscreen
->info
.family
== CHIP_VEGAM
))
429 partial_vs_wave
= true;
431 /* Required by Hawaii and, for some special cases, by GFX8. */
432 if (ia_switch_on_eoi
&&
433 (sscreen
->info
.family
== CHIP_HAWAII
||
434 (sscreen
->info
.chip_class
== GFX8
&&
435 (key
->u
.uses_gs
|| max_primgroup_in_wave
!= 2))))
436 partial_vs_wave
= true;
438 /* Instancing bug on Bonaire. */
439 if (sscreen
->info
.family
== CHIP_BONAIRE
&& ia_switch_on_eoi
&&
440 key
->u
.uses_instancing
)
441 partial_vs_wave
= true;
443 /* This only applies to Polaris10 and later 4 SE chips.
444 * wd_switch_on_eop is already true on all other chips.
446 if (!wd_switch_on_eop
&& key
->u
.primitive_restart
)
447 partial_vs_wave
= true;
449 /* If the WD switch is false, the IA switch must be false too. */
450 assert(wd_switch_on_eop
|| !ia_switch_on_eop
);
453 /* If SWITCH_ON_EOI is set, PARTIAL_ES_WAVE must be set too. */
454 if (sscreen
->info
.chip_class
<= GFX8
&& ia_switch_on_eoi
)
455 partial_es_wave
= true;
457 return S_028AA8_SWITCH_ON_EOP(ia_switch_on_eop
) |
458 S_028AA8_SWITCH_ON_EOI(ia_switch_on_eoi
) |
459 S_028AA8_PARTIAL_VS_WAVE_ON(partial_vs_wave
) |
460 S_028AA8_PARTIAL_ES_WAVE_ON(partial_es_wave
) |
461 S_028AA8_WD_SWITCH_ON_EOP(sscreen
->info
.chip_class
>= GFX7
? wd_switch_on_eop
: 0) |
462 /* The following field was moved to VGT_SHADER_STAGES_EN in GFX9. */
463 S_028AA8_MAX_PRIMGRP_IN_WAVE(sscreen
->info
.chip_class
== GFX8
?
464 max_primgroup_in_wave
: 0) |
465 S_030960_EN_INST_OPT_BASIC(sscreen
->info
.chip_class
>= GFX9
) |
466 S_030960_EN_INST_OPT_ADV(sscreen
->info
.chip_class
>= GFX9
);
469 static void si_init_ia_multi_vgt_param_table(struct si_context
*sctx
)
471 for (int prim
= 0; prim
<= SI_PRIM_RECTANGLE_LIST
; prim
++)
472 for (int uses_instancing
= 0; uses_instancing
< 2; uses_instancing
++)
473 for (int multi_instances
= 0; multi_instances
< 2; multi_instances
++)
474 for (int primitive_restart
= 0; primitive_restart
< 2; primitive_restart
++)
475 for (int count_from_so
= 0; count_from_so
< 2; count_from_so
++)
476 for (int line_stipple
= 0; line_stipple
< 2; line_stipple
++)
477 for (int uses_tess
= 0; uses_tess
< 2; uses_tess
++)
478 for (int tess_uses_primid
= 0; tess_uses_primid
< 2; tess_uses_primid
++)
479 for (int uses_gs
= 0; uses_gs
< 2; uses_gs
++) {
480 union si_vgt_param_key key
;
484 key
.u
.uses_instancing
= uses_instancing
;
485 key
.u
.multi_instances_smaller_than_primgroup
= multi_instances
;
486 key
.u
.primitive_restart
= primitive_restart
;
487 key
.u
.count_from_stream_output
= count_from_so
;
488 key
.u
.line_stipple_enabled
= line_stipple
;
489 key
.u
.uses_tess
= uses_tess
;
490 key
.u
.tess_uses_prim_id
= tess_uses_primid
;
491 key
.u
.uses_gs
= uses_gs
;
493 sctx
->ia_multi_vgt_param
[key
.index
] =
494 si_get_init_multi_vgt_param(sctx
->screen
, &key
);
498 static unsigned si_get_ia_multi_vgt_param(struct si_context
*sctx
,
499 const struct pipe_draw_info
*info
,
500 enum pipe_prim_type prim
,
501 unsigned num_patches
,
502 unsigned instance_count
,
503 bool primitive_restart
)
505 union si_vgt_param_key key
= sctx
->ia_multi_vgt_param_key
;
506 unsigned primgroup_size
;
507 unsigned ia_multi_vgt_param
;
509 if (sctx
->tes_shader
.cso
) {
510 primgroup_size
= num_patches
; /* must be a multiple of NUM_PATCHES */
511 } else if (sctx
->gs_shader
.cso
) {
512 primgroup_size
= 64; /* recommended with a GS */
514 primgroup_size
= 128; /* recommended without a GS and tess */
518 key
.u
.uses_instancing
= info
->indirect
|| instance_count
> 1;
519 key
.u
.multi_instances_smaller_than_primgroup
=
521 (instance_count
> 1 &&
522 (info
->count_from_stream_output
||
523 si_num_prims_for_vertices(info
, prim
) < primgroup_size
));
524 key
.u
.primitive_restart
= primitive_restart
;
525 key
.u
.count_from_stream_output
= info
->count_from_stream_output
!= NULL
;
527 ia_multi_vgt_param
= sctx
->ia_multi_vgt_param
[key
.index
] |
528 S_028AA8_PRIMGROUP_SIZE(primgroup_size
- 1);
530 if (sctx
->gs_shader
.cso
) {
531 /* GS requirement. */
532 if (sctx
->chip_class
<= GFX8
&&
533 SI_GS_PER_ES
/ primgroup_size
>= sctx
->screen
->gs_table_depth
- 3)
534 ia_multi_vgt_param
|= S_028AA8_PARTIAL_ES_WAVE_ON(1);
536 /* GS hw bug with single-primitive instances and SWITCH_ON_EOI.
537 * The hw doc says all multi-SE chips are affected, but Vulkan
538 * only applies it to Hawaii. Do what Vulkan does.
540 if (sctx
->family
== CHIP_HAWAII
&&
541 G_028AA8_SWITCH_ON_EOI(ia_multi_vgt_param
) &&
543 (instance_count
> 1 &&
544 (info
->count_from_stream_output
||
545 si_num_prims_for_vertices(info
, prim
) <= 1))))
546 sctx
->flags
|= SI_CONTEXT_VGT_FLUSH
;
549 return ia_multi_vgt_param
;
552 /* rast_prim is the primitive type after GS. */
553 static void si_emit_rasterizer_prim_state(struct si_context
*sctx
)
555 struct radeon_cmdbuf
*cs
= sctx
->gfx_cs
;
556 enum pipe_prim_type rast_prim
= sctx
->current_rast_prim
;
557 struct si_state_rasterizer
*rs
= sctx
->queued
.named
.rasterizer
;
559 /* Skip this if not rendering lines. */
560 if (!util_prim_is_lines(rast_prim
))
563 if (rast_prim
== sctx
->last_rast_prim
&&
564 rs
->pa_sc_line_stipple
== sctx
->last_sc_line_stipple
)
567 /* For lines, reset the stipple pattern at each primitive. Otherwise,
568 * reset the stipple pattern at each packet (line strips, line loops).
570 radeon_set_context_reg(cs
, R_028A0C_PA_SC_LINE_STIPPLE
,
571 rs
->pa_sc_line_stipple
|
572 S_028A0C_AUTO_RESET_CNTL(rast_prim
== PIPE_PRIM_LINES
? 1 : 2));
574 sctx
->last_rast_prim
= rast_prim
;
575 sctx
->last_sc_line_stipple
= rs
->pa_sc_line_stipple
;
576 sctx
->context_roll
= true;
579 static void si_emit_vs_state(struct si_context
*sctx
,
580 const struct pipe_draw_info
*info
)
582 sctx
->current_vs_state
&= C_VS_STATE_INDEXED
;
583 sctx
->current_vs_state
|= S_VS_STATE_INDEXED(!!info
->index_size
);
585 if (sctx
->num_vs_blit_sgprs
) {
586 /* Re-emit the state after we leave u_blitter. */
587 sctx
->last_vs_state
= ~0;
591 if (sctx
->current_vs_state
!= sctx
->last_vs_state
) {
592 struct radeon_cmdbuf
*cs
= sctx
->gfx_cs
;
594 /* For the API vertex shader (VS_STATE_INDEXED). */
595 radeon_set_sh_reg(cs
,
596 sctx
->shader_pointers
.sh_base
[PIPE_SHADER_VERTEX
] +
597 SI_SGPR_VS_STATE_BITS
* 4,
598 sctx
->current_vs_state
);
600 /* For vertex color clamping, which is done in the last stage
601 * before the rasterizer. */
602 if (sctx
->gs_shader
.cso
|| sctx
->tes_shader
.cso
) {
603 /* GS copy shader or TES if GS is missing. */
604 radeon_set_sh_reg(cs
,
605 R_00B130_SPI_SHADER_USER_DATA_VS_0
+
606 SI_SGPR_VS_STATE_BITS
* 4,
607 sctx
->current_vs_state
);
610 sctx
->last_vs_state
= sctx
->current_vs_state
;
614 static inline bool si_prim_restart_index_changed(struct si_context
*sctx
,
615 bool primitive_restart
,
616 unsigned restart_index
)
618 return primitive_restart
&&
619 (restart_index
!= sctx
->last_restart_index
||
620 sctx
->last_restart_index
== SI_RESTART_INDEX_UNKNOWN
);
623 static void si_emit_draw_registers(struct si_context
*sctx
,
624 const struct pipe_draw_info
*info
,
625 enum pipe_prim_type prim
,
626 unsigned num_patches
,
627 unsigned instance_count
,
628 bool primitive_restart
)
630 struct radeon_cmdbuf
*cs
= sctx
->gfx_cs
;
631 unsigned vgt_prim
= si_conv_pipe_prim(prim
);
632 unsigned ia_multi_vgt_param
;
634 ia_multi_vgt_param
= si_get_ia_multi_vgt_param(sctx
, info
, prim
, num_patches
,
635 instance_count
, primitive_restart
);
638 if (ia_multi_vgt_param
!= sctx
->last_multi_vgt_param
) {
639 if (sctx
->chip_class
>= GFX9
)
640 radeon_set_uconfig_reg_idx(cs
, sctx
->screen
,
641 R_030960_IA_MULTI_VGT_PARAM
, 4,
643 else if (sctx
->chip_class
>= GFX7
)
644 radeon_set_context_reg_idx(cs
, R_028AA8_IA_MULTI_VGT_PARAM
, 1, ia_multi_vgt_param
);
646 radeon_set_context_reg(cs
, R_028AA8_IA_MULTI_VGT_PARAM
, ia_multi_vgt_param
);
648 sctx
->last_multi_vgt_param
= ia_multi_vgt_param
;
650 if (vgt_prim
!= sctx
->last_prim
) {
651 if (sctx
->chip_class
>= GFX7
)
652 radeon_set_uconfig_reg_idx(cs
, sctx
->screen
,
653 R_030908_VGT_PRIMITIVE_TYPE
, 1, vgt_prim
);
655 radeon_set_config_reg(cs
, R_008958_VGT_PRIMITIVE_TYPE
, vgt_prim
);
657 sctx
->last_prim
= vgt_prim
;
660 /* Primitive restart. */
661 if (primitive_restart
!= sctx
->last_primitive_restart_en
) {
662 if (sctx
->chip_class
>= GFX9
)
663 radeon_set_uconfig_reg(cs
, R_03092C_VGT_MULTI_PRIM_IB_RESET_EN
,
666 radeon_set_context_reg(cs
, R_028A94_VGT_MULTI_PRIM_IB_RESET_EN
,
669 sctx
->last_primitive_restart_en
= primitive_restart
;
672 if (si_prim_restart_index_changed(sctx
, primitive_restart
, info
->restart_index
)) {
673 radeon_set_context_reg(cs
, R_02840C_VGT_MULTI_PRIM_IB_RESET_INDX
,
674 info
->restart_index
);
675 sctx
->last_restart_index
= info
->restart_index
;
676 sctx
->context_roll
= true;
680 static void si_emit_draw_packets(struct si_context
*sctx
,
681 const struct pipe_draw_info
*info
,
682 struct pipe_resource
*indexbuf
,
684 unsigned index_offset
,
685 unsigned instance_count
,
686 bool dispatch_prim_discard_cs
,
687 unsigned original_index_size
)
689 struct pipe_draw_indirect_info
*indirect
= info
->indirect
;
690 struct radeon_cmdbuf
*cs
= sctx
->gfx_cs
;
691 unsigned sh_base_reg
= sctx
->shader_pointers
.sh_base
[PIPE_SHADER_VERTEX
];
692 bool render_cond_bit
= sctx
->render_cond
&& !sctx
->render_cond_force_off
;
693 uint32_t index_max_size
= 0;
694 uint64_t index_va
= 0;
696 if (info
->count_from_stream_output
) {
697 struct si_streamout_target
*t
=
698 (struct si_streamout_target
*)info
->count_from_stream_output
;
700 radeon_set_context_reg(cs
, R_028B30_VGT_STRMOUT_DRAW_OPAQUE_VERTEX_STRIDE
,
702 si_cp_copy_data(sctx
, sctx
->gfx_cs
,
704 R_028B2C_VGT_STRMOUT_DRAW_OPAQUE_BUFFER_FILLED_SIZE
>> 2,
705 COPY_DATA_SRC_MEM
, t
->buf_filled_size
,
706 t
->buf_filled_size_offset
);
711 if (index_size
!= sctx
->last_index_size
) {
715 switch (index_size
) {
717 index_type
= V_028A7C_VGT_INDEX_8
;
720 index_type
= V_028A7C_VGT_INDEX_16
|
721 (SI_BIG_ENDIAN
&& sctx
->chip_class
<= GFX7
?
722 V_028A7C_VGT_DMA_SWAP_16_BIT
: 0);
725 index_type
= V_028A7C_VGT_INDEX_32
|
726 (SI_BIG_ENDIAN
&& sctx
->chip_class
<= GFX7
?
727 V_028A7C_VGT_DMA_SWAP_32_BIT
: 0);
730 assert(!"unreachable");
734 if (sctx
->chip_class
>= GFX9
) {
735 radeon_set_uconfig_reg_idx(cs
, sctx
->screen
,
736 R_03090C_VGT_INDEX_TYPE
, 2,
739 radeon_emit(cs
, PKT3(PKT3_INDEX_TYPE
, 0, 0));
740 radeon_emit(cs
, index_type
);
743 sctx
->last_index_size
= index_size
;
746 if (original_index_size
) {
747 index_max_size
= (indexbuf
->width0
- index_offset
) /
749 index_va
= si_resource(indexbuf
)->gpu_address
+ index_offset
;
751 radeon_add_to_buffer_list(sctx
, sctx
->gfx_cs
,
752 si_resource(indexbuf
),
753 RADEON_USAGE_READ
, RADEON_PRIO_INDEX_BUFFER
);
756 /* On GFX7 and later, non-indexed draws overwrite VGT_INDEX_TYPE,
757 * so the state must be re-emitted before the next indexed draw.
759 if (sctx
->chip_class
>= GFX7
)
760 sctx
->last_index_size
= -1;
764 uint64_t indirect_va
= si_resource(indirect
->buffer
)->gpu_address
;
766 assert(indirect_va
% 8 == 0);
768 si_invalidate_draw_sh_constants(sctx
);
770 radeon_emit(cs
, PKT3(PKT3_SET_BASE
, 2, 0));
772 radeon_emit(cs
, indirect_va
);
773 radeon_emit(cs
, indirect_va
>> 32);
775 radeon_add_to_buffer_list(sctx
, sctx
->gfx_cs
,
776 si_resource(indirect
->buffer
),
777 RADEON_USAGE_READ
, RADEON_PRIO_DRAW_INDIRECT
);
779 unsigned di_src_sel
= index_size
? V_0287F0_DI_SRC_SEL_DMA
780 : V_0287F0_DI_SRC_SEL_AUTO_INDEX
;
782 assert(indirect
->offset
% 4 == 0);
785 radeon_emit(cs
, PKT3(PKT3_INDEX_BASE
, 1, 0));
786 radeon_emit(cs
, index_va
);
787 radeon_emit(cs
, index_va
>> 32);
789 radeon_emit(cs
, PKT3(PKT3_INDEX_BUFFER_SIZE
, 0, 0));
790 radeon_emit(cs
, index_max_size
);
793 if (!sctx
->screen
->has_draw_indirect_multi
) {
794 radeon_emit(cs
, PKT3(index_size
? PKT3_DRAW_INDEX_INDIRECT
795 : PKT3_DRAW_INDIRECT
,
796 3, render_cond_bit
));
797 radeon_emit(cs
, indirect
->offset
);
798 radeon_emit(cs
, (sh_base_reg
+ SI_SGPR_BASE_VERTEX
* 4 - SI_SH_REG_OFFSET
) >> 2);
799 radeon_emit(cs
, (sh_base_reg
+ SI_SGPR_START_INSTANCE
* 4 - SI_SH_REG_OFFSET
) >> 2);
800 radeon_emit(cs
, di_src_sel
);
802 uint64_t count_va
= 0;
804 if (indirect
->indirect_draw_count
) {
805 struct si_resource
*params_buf
=
806 si_resource(indirect
->indirect_draw_count
);
808 radeon_add_to_buffer_list(
809 sctx
, sctx
->gfx_cs
, params_buf
,
810 RADEON_USAGE_READ
, RADEON_PRIO_DRAW_INDIRECT
);
812 count_va
= params_buf
->gpu_address
+ indirect
->indirect_draw_count_offset
;
815 radeon_emit(cs
, PKT3(index_size
? PKT3_DRAW_INDEX_INDIRECT_MULTI
:
816 PKT3_DRAW_INDIRECT_MULTI
,
817 8, render_cond_bit
));
818 radeon_emit(cs
, indirect
->offset
);
819 radeon_emit(cs
, (sh_base_reg
+ SI_SGPR_BASE_VERTEX
* 4 - SI_SH_REG_OFFSET
) >> 2);
820 radeon_emit(cs
, (sh_base_reg
+ SI_SGPR_START_INSTANCE
* 4 - SI_SH_REG_OFFSET
) >> 2);
821 radeon_emit(cs
, ((sh_base_reg
+ SI_SGPR_DRAWID
* 4 - SI_SH_REG_OFFSET
) >> 2) |
822 S_2C3_DRAW_INDEX_ENABLE(1) |
823 S_2C3_COUNT_INDIRECT_ENABLE(!!indirect
->indirect_draw_count
));
824 radeon_emit(cs
, indirect
->draw_count
);
825 radeon_emit(cs
, count_va
);
826 radeon_emit(cs
, count_va
>> 32);
827 radeon_emit(cs
, indirect
->stride
);
828 radeon_emit(cs
, di_src_sel
);
833 if (sctx
->last_instance_count
== SI_INSTANCE_COUNT_UNKNOWN
||
834 sctx
->last_instance_count
!= instance_count
) {
835 radeon_emit(cs
, PKT3(PKT3_NUM_INSTANCES
, 0, 0));
836 radeon_emit(cs
, instance_count
);
837 sctx
->last_instance_count
= instance_count
;
840 /* Base vertex and start instance. */
841 base_vertex
= original_index_size
? info
->index_bias
: info
->start
;
843 if (sctx
->num_vs_blit_sgprs
) {
844 /* Re-emit draw constants after we leave u_blitter. */
845 si_invalidate_draw_sh_constants(sctx
);
847 /* Blit VS doesn't use BASE_VERTEX, START_INSTANCE, and DRAWID. */
848 radeon_set_sh_reg_seq(cs
, sh_base_reg
+ SI_SGPR_VS_BLIT_DATA
* 4,
849 sctx
->num_vs_blit_sgprs
);
850 radeon_emit_array(cs
, sctx
->vs_blit_sh_data
,
851 sctx
->num_vs_blit_sgprs
);
852 } else if (base_vertex
!= sctx
->last_base_vertex
||
853 sctx
->last_base_vertex
== SI_BASE_VERTEX_UNKNOWN
||
854 info
->start_instance
!= sctx
->last_start_instance
||
855 info
->drawid
!= sctx
->last_drawid
||
856 sh_base_reg
!= sctx
->last_sh_base_reg
) {
857 radeon_set_sh_reg_seq(cs
, sh_base_reg
+ SI_SGPR_BASE_VERTEX
* 4, 3);
858 radeon_emit(cs
, base_vertex
);
859 radeon_emit(cs
, info
->start_instance
);
860 radeon_emit(cs
, info
->drawid
);
862 sctx
->last_base_vertex
= base_vertex
;
863 sctx
->last_start_instance
= info
->start_instance
;
864 sctx
->last_drawid
= info
->drawid
;
865 sctx
->last_sh_base_reg
= sh_base_reg
;
869 if (dispatch_prim_discard_cs
) {
870 index_va
+= info
->start
* original_index_size
;
871 index_max_size
= MIN2(index_max_size
, info
->count
);
873 si_dispatch_prim_discard_cs_and_draw(sctx
, info
,
876 index_va
, index_max_size
);
880 index_va
+= info
->start
* index_size
;
882 radeon_emit(cs
, PKT3(PKT3_DRAW_INDEX_2
, 4, render_cond_bit
));
883 radeon_emit(cs
, index_max_size
);
884 radeon_emit(cs
, index_va
);
885 radeon_emit(cs
, index_va
>> 32);
886 radeon_emit(cs
, info
->count
);
887 radeon_emit(cs
, V_0287F0_DI_SRC_SEL_DMA
);
889 radeon_emit(cs
, PKT3(PKT3_DRAW_INDEX_AUTO
, 1, render_cond_bit
));
890 radeon_emit(cs
, info
->count
);
891 radeon_emit(cs
, V_0287F0_DI_SRC_SEL_AUTO_INDEX
|
892 S_0287F0_USE_OPAQUE(!!info
->count_from_stream_output
));
897 void si_emit_surface_sync(struct si_context
*sctx
, struct radeon_cmdbuf
*cs
,
898 unsigned cp_coher_cntl
)
900 bool compute_ib
= !sctx
->has_graphics
||
901 cs
== sctx
->prim_discard_compute_cs
;
903 if (sctx
->chip_class
>= GFX9
|| compute_ib
) {
904 /* Flush caches and wait for the caches to assert idle. */
905 radeon_emit(cs
, PKT3(PKT3_ACQUIRE_MEM
, 5, 0));
906 radeon_emit(cs
, cp_coher_cntl
); /* CP_COHER_CNTL */
907 radeon_emit(cs
, 0xffffffff); /* CP_COHER_SIZE */
908 radeon_emit(cs
, 0xffffff); /* CP_COHER_SIZE_HI */
909 radeon_emit(cs
, 0); /* CP_COHER_BASE */
910 radeon_emit(cs
, 0); /* CP_COHER_BASE_HI */
911 radeon_emit(cs
, 0x0000000A); /* POLL_INTERVAL */
913 /* ACQUIRE_MEM is only required on a compute ring. */
914 radeon_emit(cs
, PKT3(PKT3_SURFACE_SYNC
, 3, 0));
915 radeon_emit(cs
, cp_coher_cntl
); /* CP_COHER_CNTL */
916 radeon_emit(cs
, 0xffffffff); /* CP_COHER_SIZE */
917 radeon_emit(cs
, 0); /* CP_COHER_BASE */
918 radeon_emit(cs
, 0x0000000A); /* POLL_INTERVAL */
921 /* ACQUIRE_MEM has an implicit context roll if the current context
924 sctx
->context_roll
= true;
927 void si_prim_discard_signal_next_compute_ib_start(struct si_context
*sctx
)
929 if (!si_compute_prim_discard_enabled(sctx
))
932 if (!sctx
->barrier_buf
) {
933 u_suballocator_alloc(sctx
->allocator_zeroed_memory
, 4, 4,
934 &sctx
->barrier_buf_offset
,
935 (struct pipe_resource
**)&sctx
->barrier_buf
);
938 /* Emit a placeholder to signal the next compute IB to start.
939 * See si_compute_prim_discard.c for explanation.
942 si_cp_write_data(sctx
, sctx
->barrier_buf
, sctx
->barrier_buf_offset
,
943 4, V_370_MEM
, V_370_ME
, &signal
);
945 sctx
->last_pkt3_write_data
=
946 &sctx
->gfx_cs
->current
.buf
[sctx
->gfx_cs
->current
.cdw
- 5];
948 /* Only the last occurence of WRITE_DATA will be executed.
949 * The packet will be enabled in si_flush_gfx_cs.
951 *sctx
->last_pkt3_write_data
= PKT3(PKT3_NOP
, 3, 0);
954 void si_emit_cache_flush(struct si_context
*sctx
)
956 struct radeon_cmdbuf
*cs
= sctx
->gfx_cs
;
957 uint32_t flags
= sctx
->flags
;
959 if (!sctx
->has_graphics
) {
960 /* Only process compute flags. */
961 flags
&= SI_CONTEXT_INV_ICACHE
|
962 SI_CONTEXT_INV_SCACHE
|
963 SI_CONTEXT_INV_VCACHE
|
966 SI_CONTEXT_INV_L2_METADATA
|
967 SI_CONTEXT_CS_PARTIAL_FLUSH
;
970 uint32_t cp_coher_cntl
= 0;
971 const uint32_t flush_cb_db
= flags
& (SI_CONTEXT_FLUSH_AND_INV_CB
|
972 SI_CONTEXT_FLUSH_AND_INV_DB
);
973 const bool is_barrier
= flush_cb_db
||
974 /* INV_ICACHE == beginning of gfx IB. Checking
975 * INV_ICACHE fixes corruption for DeusExMD with
976 * compute-based culling, but I don't know why.
978 flags
& (SI_CONTEXT_INV_ICACHE
|
979 SI_CONTEXT_PS_PARTIAL_FLUSH
|
980 SI_CONTEXT_VS_PARTIAL_FLUSH
) ||
981 (flags
& SI_CONTEXT_CS_PARTIAL_FLUSH
&&
982 sctx
->compute_is_busy
);
984 if (flags
& SI_CONTEXT_FLUSH_AND_INV_CB
)
985 sctx
->num_cb_cache_flushes
++;
986 if (flags
& SI_CONTEXT_FLUSH_AND_INV_DB
)
987 sctx
->num_db_cache_flushes
++;
989 /* GFX6 has a bug that it always flushes ICACHE and KCACHE if either
990 * bit is set. An alternative way is to write SQC_CACHES, but that
991 * doesn't seem to work reliably. Since the bug doesn't affect
992 * correctness (it only does more work than necessary) and
993 * the performance impact is likely negligible, there is no plan
994 * to add a workaround for it.
997 if (flags
& SI_CONTEXT_INV_ICACHE
)
998 cp_coher_cntl
|= S_0085F0_SH_ICACHE_ACTION_ENA(1);
999 if (flags
& SI_CONTEXT_INV_SCACHE
)
1000 cp_coher_cntl
|= S_0085F0_SH_KCACHE_ACTION_ENA(1);
1002 if (sctx
->chip_class
<= GFX8
) {
1003 if (flags
& SI_CONTEXT_FLUSH_AND_INV_CB
) {
1004 cp_coher_cntl
|= S_0085F0_CB_ACTION_ENA(1) |
1005 S_0085F0_CB0_DEST_BASE_ENA(1) |
1006 S_0085F0_CB1_DEST_BASE_ENA(1) |
1007 S_0085F0_CB2_DEST_BASE_ENA(1) |
1008 S_0085F0_CB3_DEST_BASE_ENA(1) |
1009 S_0085F0_CB4_DEST_BASE_ENA(1) |
1010 S_0085F0_CB5_DEST_BASE_ENA(1) |
1011 S_0085F0_CB6_DEST_BASE_ENA(1) |
1012 S_0085F0_CB7_DEST_BASE_ENA(1);
1014 /* Necessary for DCC */
1015 if (sctx
->chip_class
== GFX8
)
1016 si_cp_release_mem(sctx
, cs
,
1017 V_028A90_FLUSH_AND_INV_CB_DATA_TS
,
1018 0, EOP_DST_SEL_MEM
, EOP_INT_SEL_NONE
,
1019 EOP_DATA_SEL_DISCARD
, NULL
,
1020 0, 0, SI_NOT_QUERY
);
1022 if (flags
& SI_CONTEXT_FLUSH_AND_INV_DB
)
1023 cp_coher_cntl
|= S_0085F0_DB_ACTION_ENA(1) |
1024 S_0085F0_DB_DEST_BASE_ENA(1);
1027 if (flags
& SI_CONTEXT_FLUSH_AND_INV_CB
) {
1028 /* Flush CMASK/FMASK/DCC. SURFACE_SYNC will wait for idle. */
1029 radeon_emit(cs
, PKT3(PKT3_EVENT_WRITE
, 0, 0));
1030 radeon_emit(cs
, EVENT_TYPE(V_028A90_FLUSH_AND_INV_CB_META
) | EVENT_INDEX(0));
1032 if (flags
& (SI_CONTEXT_FLUSH_AND_INV_DB
|
1033 SI_CONTEXT_FLUSH_AND_INV_DB_META
)) {
1034 /* Flush HTILE. SURFACE_SYNC will wait for idle. */
1035 radeon_emit(cs
, PKT3(PKT3_EVENT_WRITE
, 0, 0));
1036 radeon_emit(cs
, EVENT_TYPE(V_028A90_FLUSH_AND_INV_DB_META
) | EVENT_INDEX(0));
1039 /* Wait for shader engines to go idle.
1040 * VS and PS waits are unnecessary if SURFACE_SYNC is going to wait
1041 * for everything including CB/DB cache flushes.
1044 if (flags
& SI_CONTEXT_PS_PARTIAL_FLUSH
) {
1045 radeon_emit(cs
, PKT3(PKT3_EVENT_WRITE
, 0, 0));
1046 radeon_emit(cs
, EVENT_TYPE(V_028A90_PS_PARTIAL_FLUSH
) | EVENT_INDEX(4));
1047 /* Only count explicit shader flushes, not implicit ones
1048 * done by SURFACE_SYNC.
1050 sctx
->num_vs_flushes
++;
1051 sctx
->num_ps_flushes
++;
1052 } else if (flags
& SI_CONTEXT_VS_PARTIAL_FLUSH
) {
1053 radeon_emit(cs
, PKT3(PKT3_EVENT_WRITE
, 0, 0));
1054 radeon_emit(cs
, EVENT_TYPE(V_028A90_VS_PARTIAL_FLUSH
) | EVENT_INDEX(4));
1055 sctx
->num_vs_flushes
++;
1059 if (flags
& SI_CONTEXT_CS_PARTIAL_FLUSH
&&
1060 sctx
->compute_is_busy
) {
1061 radeon_emit(cs
, PKT3(PKT3_EVENT_WRITE
, 0, 0));
1062 radeon_emit(cs
, EVENT_TYPE(V_028A90_CS_PARTIAL_FLUSH
) | EVENT_INDEX(4));
1063 sctx
->num_cs_flushes
++;
1064 sctx
->compute_is_busy
= false;
1067 /* VGT state synchronization. */
1068 if (flags
& SI_CONTEXT_VGT_FLUSH
) {
1069 radeon_emit(cs
, PKT3(PKT3_EVENT_WRITE
, 0, 0));
1070 radeon_emit(cs
, EVENT_TYPE(V_028A90_VGT_FLUSH
) | EVENT_INDEX(0));
1072 if (flags
& SI_CONTEXT_VGT_STREAMOUT_SYNC
) {
1073 radeon_emit(cs
, PKT3(PKT3_EVENT_WRITE
, 0, 0));
1074 radeon_emit(cs
, EVENT_TYPE(V_028A90_VGT_STREAMOUT_SYNC
) | EVENT_INDEX(0));
1077 /* GFX9: Wait for idle if we're flushing CB or DB. ACQUIRE_MEM doesn't
1078 * wait for idle on GFX9. We have to use a TS event.
1080 if (sctx
->chip_class
>= GFX9
&& flush_cb_db
) {
1082 unsigned tc_flags
, cb_db_event
;
1084 /* Set the CB/DB flush event. */
1085 switch (flush_cb_db
) {
1086 case SI_CONTEXT_FLUSH_AND_INV_CB
:
1087 cb_db_event
= V_028A90_FLUSH_AND_INV_CB_DATA_TS
;
1089 case SI_CONTEXT_FLUSH_AND_INV_DB
:
1090 cb_db_event
= V_028A90_FLUSH_AND_INV_DB_DATA_TS
;
1094 cb_db_event
= V_028A90_CACHE_FLUSH_AND_INV_TS_EVENT
;
1097 /* These are the only allowed combinations. If you need to
1098 * do multiple operations at once, do them separately.
1099 * All operations that invalidate L2 also seem to invalidate
1100 * metadata. Volatile (VOL) and WC flushes are not listed here.
1102 * TC | TC_WB = writeback & invalidate L2 & L1
1103 * TC | TC_WB | TC_NC = writeback & invalidate L2 for MTYPE == NC
1104 * TC_WB | TC_NC = writeback L2 for MTYPE == NC
1105 * TC | TC_NC = invalidate L2 for MTYPE == NC
1106 * TC | TC_MD = writeback & invalidate L2 metadata (DCC, etc.)
1107 * TCL1 = invalidate L1
1111 if (flags
& SI_CONTEXT_INV_L2_METADATA
) {
1112 tc_flags
= EVENT_TC_ACTION_ENA
|
1113 EVENT_TC_MD_ACTION_ENA
;
1116 /* Ideally flush TC together with CB/DB. */
1117 if (flags
& SI_CONTEXT_INV_L2
) {
1118 /* Writeback and invalidate everything in L2 & L1. */
1119 tc_flags
= EVENT_TC_ACTION_ENA
|
1120 EVENT_TC_WB_ACTION_ENA
;
1122 /* Clear the flags. */
1123 flags
&= ~(SI_CONTEXT_INV_L2
|
1125 SI_CONTEXT_INV_VCACHE
);
1126 sctx
->num_L2_invalidates
++;
1129 /* Do the flush (enqueue the event and wait for it). */
1130 va
= sctx
->wait_mem_scratch
->gpu_address
;
1131 sctx
->wait_mem_number
++;
1133 si_cp_release_mem(sctx
, cs
, cb_db_event
, tc_flags
,
1135 EOP_INT_SEL_SEND_DATA_AFTER_WR_CONFIRM
,
1136 EOP_DATA_SEL_VALUE_32BIT
,
1137 sctx
->wait_mem_scratch
, va
,
1138 sctx
->wait_mem_number
, SI_NOT_QUERY
);
1139 si_cp_wait_mem(sctx
, cs
, va
, sctx
->wait_mem_number
, 0xffffffff,
1140 WAIT_REG_MEM_EQUAL
);
1143 /* Make sure ME is idle (it executes most packets) before continuing.
1144 * This prevents read-after-write hazards between PFP and ME.
1146 if (sctx
->has_graphics
&&
1148 (flags
& (SI_CONTEXT_CS_PARTIAL_FLUSH
|
1149 SI_CONTEXT_INV_VCACHE
|
1151 SI_CONTEXT_WB_L2
)))) {
1152 radeon_emit(cs
, PKT3(PKT3_PFP_SYNC_ME
, 0, 0));
1157 * When one of the CP_COHER_CNTL.DEST_BASE flags is set, SURFACE_SYNC
1158 * waits for idle, so it should be last. SURFACE_SYNC is done in PFP.
1160 * cp_coher_cntl should contain all necessary flags except TC flags
1163 * GFX6-GFX7 don't support L2 write-back.
1165 if (flags
& SI_CONTEXT_INV_L2
||
1166 (sctx
->chip_class
<= GFX7
&&
1167 (flags
& SI_CONTEXT_WB_L2
))) {
1168 /* Invalidate L1 & L2. (L1 is always invalidated on GFX6)
1169 * WB must be set on GFX8+ when TC_ACTION is set.
1171 si_emit_surface_sync(sctx
, sctx
->gfx_cs
, cp_coher_cntl
|
1172 S_0085F0_TC_ACTION_ENA(1) |
1173 S_0085F0_TCL1_ACTION_ENA(1) |
1174 S_0301F0_TC_WB_ACTION_ENA(sctx
->chip_class
>= GFX8
));
1176 sctx
->num_L2_invalidates
++;
1178 /* L1 invalidation and L2 writeback must be done separately,
1179 * because both operations can't be done together.
1181 if (flags
& SI_CONTEXT_WB_L2
) {
1183 * NC = apply to non-coherent MTYPEs
1184 * (i.e. MTYPE <= 1, which is what we use everywhere)
1186 * WB doesn't work without NC.
1188 si_emit_surface_sync(sctx
, sctx
->gfx_cs
, cp_coher_cntl
|
1189 S_0301F0_TC_WB_ACTION_ENA(1) |
1190 S_0301F0_TC_NC_ACTION_ENA(1));
1192 sctx
->num_L2_writebacks
++;
1194 if (flags
& SI_CONTEXT_INV_VCACHE
) {
1195 /* Invalidate per-CU VMEM L1. */
1196 si_emit_surface_sync(sctx
, sctx
->gfx_cs
, cp_coher_cntl
|
1197 S_0085F0_TCL1_ACTION_ENA(1));
1202 /* If TC flushes haven't cleared this... */
1204 si_emit_surface_sync(sctx
, sctx
->gfx_cs
, cp_coher_cntl
);
1207 si_prim_discard_signal_next_compute_ib_start(sctx
);
1209 if (flags
& SI_CONTEXT_START_PIPELINE_STATS
) {
1210 radeon_emit(cs
, PKT3(PKT3_EVENT_WRITE
, 0, 0));
1211 radeon_emit(cs
, EVENT_TYPE(V_028A90_PIPELINESTAT_START
) |
1213 } else if (flags
& SI_CONTEXT_STOP_PIPELINE_STATS
) {
1214 radeon_emit(cs
, PKT3(PKT3_EVENT_WRITE
, 0, 0));
1215 radeon_emit(cs
, EVENT_TYPE(V_028A90_PIPELINESTAT_STOP
) |
1222 static void si_get_draw_start_count(struct si_context
*sctx
,
1223 const struct pipe_draw_info
*info
,
1224 unsigned *start
, unsigned *count
)
1226 struct pipe_draw_indirect_info
*indirect
= info
->indirect
;
1229 unsigned indirect_count
;
1230 struct pipe_transfer
*transfer
;
1231 unsigned begin
, end
;
1235 if (indirect
->indirect_draw_count
) {
1236 data
= pipe_buffer_map_range(&sctx
->b
,
1237 indirect
->indirect_draw_count
,
1238 indirect
->indirect_draw_count_offset
,
1240 PIPE_TRANSFER_READ
, &transfer
);
1242 indirect_count
= *data
;
1244 pipe_buffer_unmap(&sctx
->b
, transfer
);
1246 indirect_count
= indirect
->draw_count
;
1249 if (!indirect_count
) {
1250 *start
= *count
= 0;
1254 map_size
= (indirect_count
- 1) * indirect
->stride
+ 3 * sizeof(unsigned);
1255 data
= pipe_buffer_map_range(&sctx
->b
, indirect
->buffer
,
1256 indirect
->offset
, map_size
,
1257 PIPE_TRANSFER_READ
, &transfer
);
1262 for (unsigned i
= 0; i
< indirect_count
; ++i
) {
1263 unsigned count
= data
[0];
1264 unsigned start
= data
[2];
1267 begin
= MIN2(begin
, start
);
1268 end
= MAX2(end
, start
+ count
);
1271 data
+= indirect
->stride
/ sizeof(unsigned);
1274 pipe_buffer_unmap(&sctx
->b
, transfer
);
1278 *count
= end
- begin
;
1280 *start
= *count
= 0;
1283 *start
= info
->start
;
1284 *count
= info
->count
;
1288 static void si_emit_all_states(struct si_context
*sctx
, const struct pipe_draw_info
*info
,
1289 enum pipe_prim_type prim
, unsigned instance_count
,
1290 bool primitive_restart
, unsigned skip_atom_mask
)
1292 unsigned num_patches
= 0;
1294 si_emit_rasterizer_prim_state(sctx
);
1295 if (sctx
->tes_shader
.cso
)
1296 si_emit_derived_tess_state(sctx
, info
, &num_patches
);
1298 /* Emit state atoms. */
1299 unsigned mask
= sctx
->dirty_atoms
& ~skip_atom_mask
;
1301 sctx
->atoms
.array
[u_bit_scan(&mask
)].emit(sctx
);
1303 sctx
->dirty_atoms
&= skip_atom_mask
;
1306 mask
= sctx
->dirty_states
;
1308 unsigned i
= u_bit_scan(&mask
);
1309 struct si_pm4_state
*state
= sctx
->queued
.array
[i
];
1311 if (!state
|| sctx
->emitted
.array
[i
] == state
)
1314 si_pm4_emit(sctx
, state
);
1315 sctx
->emitted
.array
[i
] = state
;
1317 sctx
->dirty_states
= 0;
1319 /* Emit draw states. */
1320 si_emit_vs_state(sctx
, info
);
1321 si_emit_draw_registers(sctx
, info
, prim
, num_patches
, instance_count
,
1326 si_all_vs_resources_read_only(struct si_context
*sctx
,
1327 struct pipe_resource
*indexbuf
)
1329 struct radeon_winsys
*ws
= sctx
->ws
;
1330 struct radeon_cmdbuf
*cs
= sctx
->gfx_cs
;
1334 ws
->cs_is_buffer_referenced(cs
, si_resource(indexbuf
)->buf
,
1335 RADEON_USAGE_WRITE
))
1336 goto has_write_reference
;
1338 /* Vertex buffers. */
1339 struct si_vertex_elements
*velems
= sctx
->vertex_elements
;
1340 unsigned num_velems
= velems
->count
;
1342 for (unsigned i
= 0; i
< num_velems
; i
++) {
1343 if (!((1 << i
) & velems
->first_vb_use_mask
))
1346 unsigned vb_index
= velems
->vertex_buffer_index
[i
];
1347 struct pipe_resource
*res
= sctx
->vertex_buffer
[vb_index
].buffer
.resource
;
1351 if (ws
->cs_is_buffer_referenced(cs
, si_resource(res
)->buf
,
1352 RADEON_USAGE_WRITE
))
1353 goto has_write_reference
;
1356 /* Constant and shader buffers. */
1357 struct si_descriptors
*buffers
=
1358 &sctx
->descriptors
[si_const_and_shader_buffer_descriptors_idx(PIPE_SHADER_VERTEX
)];
1359 for (unsigned i
= 0; i
< buffers
->num_active_slots
; i
++) {
1360 unsigned index
= buffers
->first_active_slot
+ i
;
1361 struct pipe_resource
*res
=
1362 sctx
->const_and_shader_buffers
[PIPE_SHADER_VERTEX
].buffers
[index
];
1366 if (ws
->cs_is_buffer_referenced(cs
, si_resource(res
)->buf
,
1367 RADEON_USAGE_WRITE
))
1368 goto has_write_reference
;
1372 struct si_shader_selector
*vs
= sctx
->vs_shader
.cso
;
1373 if (vs
->info
.samplers_declared
) {
1374 unsigned num_samplers
= util_last_bit(vs
->info
.samplers_declared
);
1376 for (unsigned i
= 0; i
< num_samplers
; i
++) {
1377 struct pipe_sampler_view
*view
= sctx
->samplers
[PIPE_SHADER_VERTEX
].views
[i
];
1381 if (ws
->cs_is_buffer_referenced(cs
,
1382 si_resource(view
->texture
)->buf
,
1383 RADEON_USAGE_WRITE
))
1384 goto has_write_reference
;
1389 if (vs
->info
.images_declared
) {
1390 unsigned num_images
= util_last_bit(vs
->info
.images_declared
);
1392 for (unsigned i
= 0; i
< num_images
; i
++) {
1393 struct pipe_resource
*res
= sctx
->images
[PIPE_SHADER_VERTEX
].views
[i
].resource
;
1397 if (ws
->cs_is_buffer_referenced(cs
, si_resource(res
)->buf
,
1398 RADEON_USAGE_WRITE
))
1399 goto has_write_reference
;
1405 has_write_reference
:
1406 /* If the current gfx IB has enough packets, flush it to remove write
1407 * references to buffers.
1409 if (cs
->prev_dw
+ cs
->current
.cdw
> 2048) {
1410 si_flush_gfx_cs(sctx
, RADEON_FLUSH_ASYNC_START_NEXT_GFX_IB_NOW
, NULL
);
1411 assert(si_all_vs_resources_read_only(sctx
, indexbuf
));
1417 static ALWAYS_INLINE
bool pd_msg(const char *s
)
1419 if (SI_PRIM_DISCARD_DEBUG
)
1420 printf("PD failed: %s\n", s
);
1424 static void si_draw_vbo(struct pipe_context
*ctx
, const struct pipe_draw_info
*info
)
1426 struct si_context
*sctx
= (struct si_context
*)ctx
;
1427 struct si_state_rasterizer
*rs
= sctx
->queued
.named
.rasterizer
;
1428 struct pipe_resource
*indexbuf
= info
->index
.resource
;
1429 unsigned dirty_tex_counter
, dirty_buf_counter
;
1430 enum pipe_prim_type rast_prim
, prim
= info
->mode
;
1431 unsigned index_size
= info
->index_size
;
1432 unsigned index_offset
= info
->indirect
? info
->start
* index_size
: 0;
1433 unsigned instance_count
= info
->instance_count
;
1434 bool primitive_restart
= info
->primitive_restart
&&
1435 (!sctx
->screen
->options
.prim_restart_tri_strips_only
||
1436 (prim
!= PIPE_PRIM_TRIANGLE_STRIP
&&
1437 prim
!= PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY
));
1439 if (likely(!info
->indirect
)) {
1440 /* GFX6-GFX7 treat instance_count==0 as instance_count==1. There is
1441 * no workaround for indirect draws, but we can at least skip
1444 if (unlikely(!instance_count
))
1447 /* Handle count == 0. */
1448 if (unlikely(!info
->count
&&
1449 (index_size
|| !info
->count_from_stream_output
)))
1453 if (unlikely(!sctx
->vs_shader
.cso
||
1455 (!sctx
->ps_shader
.cso
&& !rs
->rasterizer_discard
) ||
1456 (!!sctx
->tes_shader
.cso
!= (prim
== PIPE_PRIM_PATCHES
)))) {
1461 /* Recompute and re-emit the texture resource states if needed. */
1462 dirty_tex_counter
= p_atomic_read(&sctx
->screen
->dirty_tex_counter
);
1463 if (unlikely(dirty_tex_counter
!= sctx
->last_dirty_tex_counter
)) {
1464 sctx
->last_dirty_tex_counter
= dirty_tex_counter
;
1465 sctx
->framebuffer
.dirty_cbufs
|=
1466 ((1 << sctx
->framebuffer
.state
.nr_cbufs
) - 1);
1467 sctx
->framebuffer
.dirty_zsbuf
= true;
1468 si_mark_atom_dirty(sctx
, &sctx
->atoms
.s
.framebuffer
);
1469 si_update_all_texture_descriptors(sctx
);
1472 dirty_buf_counter
= p_atomic_read(&sctx
->screen
->dirty_buf_counter
);
1473 if (unlikely(dirty_buf_counter
!= sctx
->last_dirty_buf_counter
)) {
1474 sctx
->last_dirty_buf_counter
= dirty_buf_counter
;
1475 /* Rebind all buffers unconditionally. */
1476 si_rebind_buffer(sctx
, NULL
);
1479 si_decompress_textures(sctx
, u_bit_consecutive(0, SI_NUM_GRAPHICS_SHADERS
));
1481 /* Set the rasterization primitive type.
1483 * This must be done after si_decompress_textures, which can call
1484 * draw_vbo recursively, and before si_update_shaders, which uses
1485 * current_rast_prim for this draw_vbo call. */
1486 if (sctx
->gs_shader
.cso
)
1487 rast_prim
= sctx
->gs_shader
.cso
->gs_output_prim
;
1488 else if (sctx
->tes_shader
.cso
) {
1489 if (sctx
->tes_shader
.cso
->info
.properties
[TGSI_PROPERTY_TES_POINT_MODE
])
1490 rast_prim
= PIPE_PRIM_POINTS
;
1492 rast_prim
= sctx
->tes_shader
.cso
->info
.properties
[TGSI_PROPERTY_TES_PRIM_MODE
];
1496 if (rast_prim
!= sctx
->current_rast_prim
) {
1497 if (util_prim_is_points_or_lines(sctx
->current_rast_prim
) !=
1498 util_prim_is_points_or_lines(rast_prim
))
1499 si_mark_atom_dirty(sctx
, &sctx
->atoms
.s
.guardband
);
1501 sctx
->current_rast_prim
= rast_prim
;
1502 sctx
->do_update_shaders
= true;
1505 if (sctx
->tes_shader
.cso
&&
1506 sctx
->screen
->has_ls_vgpr_init_bug
) {
1507 /* Determine whether the LS VGPR fix should be applied.
1509 * It is only required when num input CPs > num output CPs,
1510 * which cannot happen with the fixed function TCS. We should
1511 * also update this bit when switching from TCS to fixed
1514 struct si_shader_selector
*tcs
= sctx
->tcs_shader
.cso
;
1517 info
->vertices_per_patch
>
1518 tcs
->info
.properties
[TGSI_PROPERTY_TCS_VERTICES_OUT
];
1520 if (ls_vgpr_fix
!= sctx
->ls_vgpr_fix
) {
1521 sctx
->ls_vgpr_fix
= ls_vgpr_fix
;
1522 sctx
->do_update_shaders
= true;
1526 if (sctx
->gs_shader
.cso
) {
1527 /* Determine whether the GS triangle strip adjacency fix should
1528 * be applied. Rotate every other triangle if
1529 * - triangle strips with adjacency are fed to the GS and
1530 * - primitive restart is disabled (the rotation doesn't help
1531 * when the restart occurs after an odd number of triangles).
1533 bool gs_tri_strip_adj_fix
=
1534 !sctx
->tes_shader
.cso
&&
1535 prim
== PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY
&&
1538 if (gs_tri_strip_adj_fix
!= sctx
->gs_tri_strip_adj_fix
) {
1539 sctx
->gs_tri_strip_adj_fix
= gs_tri_strip_adj_fix
;
1540 sctx
->do_update_shaders
= true;
1545 /* Translate or upload, if needed. */
1546 /* 8-bit indices are supported on GFX8. */
1547 if (sctx
->chip_class
<= GFX7
&& index_size
== 1) {
1548 unsigned start
, count
, start_offset
, size
, offset
;
1551 si_get_draw_start_count(sctx
, info
, &start
, &count
);
1552 start_offset
= start
* 2;
1556 u_upload_alloc(ctx
->stream_uploader
, start_offset
,
1558 si_optimal_tcc_alignment(sctx
, size
),
1559 &offset
, &indexbuf
, &ptr
);
1563 util_shorten_ubyte_elts_to_userptr(&sctx
->b
, info
, 0, 0,
1564 index_offset
+ start
,
1567 /* info->start will be added by the drawing code */
1568 index_offset
= offset
- start_offset
;
1570 } else if (info
->has_user_indices
) {
1571 unsigned start_offset
;
1573 assert(!info
->indirect
);
1574 start_offset
= info
->start
* index_size
;
1577 u_upload_data(ctx
->stream_uploader
, start_offset
,
1578 info
->count
* index_size
,
1579 sctx
->screen
->info
.tcc_cache_line_size
,
1580 (char*)info
->index
.user
+ start_offset
,
1581 &index_offset
, &indexbuf
);
1585 /* info->start will be added by the drawing code */
1586 index_offset
-= start_offset
;
1587 } else if (sctx
->chip_class
<= GFX7
&&
1588 si_resource(indexbuf
)->TC_L2_dirty
) {
1589 /* GFX8 reads index buffers through TC L2, so it doesn't
1591 sctx
->flags
|= SI_CONTEXT_WB_L2
;
1592 si_resource(indexbuf
)->TC_L2_dirty
= false;
1596 bool dispatch_prim_discard_cs
= false;
1597 bool prim_discard_cs_instancing
= false;
1598 unsigned original_index_size
= index_size
;
1599 unsigned direct_count
= 0;
1601 if (info
->indirect
) {
1602 struct pipe_draw_indirect_info
*indirect
= info
->indirect
;
1604 /* Add the buffer size for memory checking in need_cs_space. */
1605 si_context_add_resource_size(sctx
, indirect
->buffer
);
1607 /* Indirect buffers use TC L2 on GFX9, but not older hw. */
1608 if (sctx
->chip_class
<= GFX8
) {
1609 if (si_resource(indirect
->buffer
)->TC_L2_dirty
) {
1610 sctx
->flags
|= SI_CONTEXT_WB_L2
;
1611 si_resource(indirect
->buffer
)->TC_L2_dirty
= false;
1614 if (indirect
->indirect_draw_count
&&
1615 si_resource(indirect
->indirect_draw_count
)->TC_L2_dirty
) {
1616 sctx
->flags
|= SI_CONTEXT_WB_L2
;
1617 si_resource(indirect
->indirect_draw_count
)->TC_L2_dirty
= false;
1621 /* Multiply by 3 for strips and fans to get an approximate vertex
1622 * count as triangles. */
1623 direct_count
= info
->count
* instance_count
*
1624 (prim
== PIPE_PRIM_TRIANGLES
? 1 : 3);
1627 /* Determine if we can use the primitive discard compute shader. */
1628 if (si_compute_prim_discard_enabled(sctx
) &&
1629 (direct_count
> sctx
->prim_discard_vertex_count_threshold
?
1630 (sctx
->compute_num_verts_rejected
+= direct_count
, true) : /* Add, then return true. */
1631 (sctx
->compute_num_verts_ineligible
+= direct_count
, false)) && /* Add, then return false. */
1632 (!info
->count_from_stream_output
|| pd_msg("draw_opaque")) &&
1633 (primitive_restart
?
1634 /* Supported prim types with primitive restart: */
1635 (prim
== PIPE_PRIM_TRIANGLE_STRIP
|| pd_msg("bad prim type with primitive restart")) &&
1636 /* Disallow instancing with primitive restart: */
1637 (instance_count
== 1 || pd_msg("instance_count > 1 with primitive restart")) :
1638 /* Supported prim types without primitive restart + allow instancing: */
1639 (1 << prim
) & ((1 << PIPE_PRIM_TRIANGLES
) |
1640 (1 << PIPE_PRIM_TRIANGLE_STRIP
) |
1641 (1 << PIPE_PRIM_TRIANGLE_FAN
)) &&
1642 /* Instancing is limited to 16-bit indices, because InstanceID is packed into VertexID. */
1643 /* TODO: DrawArraysInstanced doesn't sometimes work, so it's disabled. */
1644 (instance_count
== 1 ||
1645 (instance_count
<= USHRT_MAX
&& index_size
&& index_size
<= 2) ||
1646 pd_msg("instance_count too large or index_size == 4 or DrawArraysInstanced"))) &&
1647 (info
->drawid
== 0 || !sctx
->vs_shader
.cso
->info
.uses_drawid
|| pd_msg("draw_id > 0")) &&
1648 (!sctx
->render_cond
|| pd_msg("render condition")) &&
1649 /* Forced enablement ignores pipeline statistics queries. */
1650 (sctx
->screen
->debug_flags
& (DBG(PD
) | DBG(ALWAYS_PD
)) ||
1651 (!sctx
->num_pipeline_stat_queries
&& !sctx
->streamout
.prims_gen_query_enabled
) ||
1652 pd_msg("pipestat or primgen query")) &&
1653 (!sctx
->vertex_elements
->instance_divisor_is_fetched
|| pd_msg("loads instance divisors")) &&
1654 (!sctx
->tes_shader
.cso
|| pd_msg("uses tess")) &&
1655 (!sctx
->gs_shader
.cso
|| pd_msg("uses GS")) &&
1656 (!sctx
->ps_shader
.cso
->info
.uses_primid
|| pd_msg("PS uses PrimID")) &&
1657 #if SI_PRIM_DISCARD_DEBUG /* same as cso->prim_discard_cs_allowed */
1658 (!sctx
->vs_shader
.cso
->info
.uses_bindless_images
|| pd_msg("uses bindless images")) &&
1659 (!sctx
->vs_shader
.cso
->info
.uses_bindless_samplers
|| pd_msg("uses bindless samplers")) &&
1660 (!sctx
->vs_shader
.cso
->info
.writes_memory
|| pd_msg("writes memory")) &&
1661 (!sctx
->vs_shader
.cso
->info
.writes_viewport_index
|| pd_msg("writes viewport index")) &&
1662 !sctx
->vs_shader
.cso
->info
.properties
[TGSI_PROPERTY_VS_WINDOW_SPACE_POSITION
] &&
1663 !sctx
->vs_shader
.cso
->so
.num_outputs
&&
1665 (sctx
->vs_shader
.cso
->prim_discard_cs_allowed
|| pd_msg("VS shader uses unsupported features")) &&
1667 /* Check that all buffers are used for read only, because compute
1668 * dispatches can run ahead. */
1669 (si_all_vs_resources_read_only(sctx
, index_size
? indexbuf
: NULL
) || pd_msg("write reference"))) {
1670 switch (si_prepare_prim_discard_or_split_draw(sctx
, info
, primitive_restart
)) {
1671 case SI_PRIM_DISCARD_ENABLED
:
1672 original_index_size
= index_size
;
1673 prim_discard_cs_instancing
= instance_count
> 1;
1674 dispatch_prim_discard_cs
= true;
1676 /* The compute shader changes/lowers the following: */
1677 prim
= PIPE_PRIM_TRIANGLES
;
1680 primitive_restart
= false;
1681 sctx
->compute_num_verts_rejected
-= direct_count
;
1682 sctx
->compute_num_verts_accepted
+= direct_count
;
1684 case SI_PRIM_DISCARD_DISABLED
:
1686 case SI_PRIM_DISCARD_DRAW_SPLIT
:
1687 sctx
->compute_num_verts_rejected
-= direct_count
;
1688 goto return_cleanup
;
1692 if (prim_discard_cs_instancing
!= sctx
->prim_discard_cs_instancing
) {
1693 sctx
->prim_discard_cs_instancing
= prim_discard_cs_instancing
;
1694 sctx
->do_update_shaders
= true;
1697 if (sctx
->do_update_shaders
&& !si_update_shaders(sctx
))
1698 goto return_cleanup
;
1700 si_need_gfx_cs_space(sctx
);
1702 if (sctx
->bo_list_add_all_gfx_resources
)
1703 si_gfx_resources_add_all_to_bo_list(sctx
);
1705 /* Since we've called si_context_add_resource_size for vertex buffers,
1706 * this must be called after si_need_cs_space, because we must let
1707 * need_cs_space flush before we add buffers to the buffer list.
1709 if (!si_upload_vertex_buffer_descriptors(sctx
))
1710 goto return_cleanup
;
1712 /* Vega10/Raven scissor bug workaround. When any context register is
1713 * written (i.e. the GPU rolls the context), PA_SC_VPORT_SCISSOR
1714 * registers must be written too.
1716 bool has_gfx9_scissor_bug
= sctx
->screen
->has_gfx9_scissor_bug
;
1717 unsigned masked_atoms
= 0;
1719 if (has_gfx9_scissor_bug
) {
1720 masked_atoms
|= si_get_atom_bit(sctx
, &sctx
->atoms
.s
.scissors
);
1722 if (info
->count_from_stream_output
||
1723 sctx
->dirty_atoms
& si_atoms_that_always_roll_context() ||
1724 sctx
->dirty_states
& si_states_that_always_roll_context())
1725 sctx
->context_roll
= true;
1728 /* Use optimal packet order based on whether we need to sync the pipeline. */
1729 if (unlikely(sctx
->flags
& (SI_CONTEXT_FLUSH_AND_INV_CB
|
1730 SI_CONTEXT_FLUSH_AND_INV_DB
|
1731 SI_CONTEXT_PS_PARTIAL_FLUSH
|
1732 SI_CONTEXT_CS_PARTIAL_FLUSH
))) {
1733 /* If we have to wait for idle, set all states first, so that all
1734 * SET packets are processed in parallel with previous draw calls.
1735 * Then draw and prefetch at the end. This ensures that the time
1736 * the CUs are idle is very short.
1738 if (unlikely(sctx
->flags
& SI_CONTEXT_FLUSH_FOR_RENDER_COND
))
1739 masked_atoms
|= si_get_atom_bit(sctx
, &sctx
->atoms
.s
.render_cond
);
1741 if (!si_upload_graphics_shader_descriptors(sctx
))
1742 goto return_cleanup
;
1744 /* Emit all states except possibly render condition. */
1745 si_emit_all_states(sctx
, info
, prim
, instance_count
,
1746 primitive_restart
, masked_atoms
);
1747 si_emit_cache_flush(sctx
);
1748 /* <-- CUs are idle here. */
1750 if (si_is_atom_dirty(sctx
, &sctx
->atoms
.s
.render_cond
))
1751 sctx
->atoms
.s
.render_cond
.emit(sctx
);
1753 if (has_gfx9_scissor_bug
&&
1754 (sctx
->context_roll
||
1755 si_is_atom_dirty(sctx
, &sctx
->atoms
.s
.scissors
)))
1756 sctx
->atoms
.s
.scissors
.emit(sctx
);
1758 sctx
->dirty_atoms
= 0;
1760 si_emit_draw_packets(sctx
, info
, indexbuf
, index_size
, index_offset
,
1761 instance_count
, dispatch_prim_discard_cs
,
1762 original_index_size
);
1763 /* <-- CUs are busy here. */
1765 /* Start prefetches after the draw has been started. Both will run
1766 * in parallel, but starting the draw first is more important.
1768 if (sctx
->chip_class
>= GFX7
&& sctx
->prefetch_L2_mask
)
1769 cik_emit_prefetch_L2(sctx
, false);
1771 /* If we don't wait for idle, start prefetches first, then set
1772 * states, and draw at the end.
1775 si_emit_cache_flush(sctx
);
1777 /* Only prefetch the API VS and VBO descriptors. */
1778 if (sctx
->chip_class
>= GFX7
&& sctx
->prefetch_L2_mask
)
1779 cik_emit_prefetch_L2(sctx
, true);
1781 if (!si_upload_graphics_shader_descriptors(sctx
))
1782 goto return_cleanup
;
1784 si_emit_all_states(sctx
, info
, prim
, instance_count
,
1785 primitive_restart
, masked_atoms
);
1787 if (has_gfx9_scissor_bug
&&
1788 (sctx
->context_roll
||
1789 si_is_atom_dirty(sctx
, &sctx
->atoms
.s
.scissors
)))
1790 sctx
->atoms
.s
.scissors
.emit(sctx
);
1792 sctx
->dirty_atoms
= 0;
1794 si_emit_draw_packets(sctx
, info
, indexbuf
, index_size
, index_offset
,
1795 instance_count
, dispatch_prim_discard_cs
,
1796 original_index_size
);
1798 /* Prefetch the remaining shaders after the draw has been
1800 if (sctx
->chip_class
>= GFX7
&& sctx
->prefetch_L2_mask
)
1801 cik_emit_prefetch_L2(sctx
, false);
1804 /* Clear the context roll flag after the draw call. */
1805 sctx
->context_roll
= false;
1807 if (unlikely(sctx
->current_saved_cs
)) {
1808 si_trace_emit(sctx
);
1809 si_log_draw_state(sctx
, sctx
->log
);
1812 /* Workaround for a VGT hang when streamout is enabled.
1813 * It must be done after drawing. */
1814 if ((sctx
->family
== CHIP_HAWAII
||
1815 sctx
->family
== CHIP_TONGA
||
1816 sctx
->family
== CHIP_FIJI
) &&
1817 si_get_strmout_en(sctx
)) {
1818 sctx
->flags
|= SI_CONTEXT_VGT_STREAMOUT_SYNC
;
1821 if (unlikely(sctx
->decompression_enabled
)) {
1822 sctx
->num_decompress_calls
++;
1824 sctx
->num_draw_calls
++;
1825 if (sctx
->framebuffer
.state
.nr_cbufs
> 1)
1826 sctx
->num_mrt_draw_calls
++;
1827 if (primitive_restart
)
1828 sctx
->num_prim_restart_calls
++;
1829 if (G_0286E8_WAVESIZE(sctx
->spi_tmpring_size
))
1830 sctx
->num_spill_draw_calls
++;
1834 if (index_size
&& indexbuf
!= info
->index
.resource
)
1835 pipe_resource_reference(&indexbuf
, NULL
);
1839 si_draw_rectangle(struct blitter_context
*blitter
,
1840 void *vertex_elements_cso
,
1841 blitter_get_vs_func get_vs
,
1842 int x1
, int y1
, int x2
, int y2
,
1843 float depth
, unsigned num_instances
,
1844 enum blitter_attrib_type type
,
1845 const union blitter_attrib
*attrib
)
1847 struct pipe_context
*pipe
= util_blitter_get_pipe(blitter
);
1848 struct si_context
*sctx
= (struct si_context
*)pipe
;
1850 /* Pack position coordinates as signed int16. */
1851 sctx
->vs_blit_sh_data
[0] = (uint32_t)(x1
& 0xffff) |
1852 ((uint32_t)(y1
& 0xffff) << 16);
1853 sctx
->vs_blit_sh_data
[1] = (uint32_t)(x2
& 0xffff) |
1854 ((uint32_t)(y2
& 0xffff) << 16);
1855 sctx
->vs_blit_sh_data
[2] = fui(depth
);
1858 case UTIL_BLITTER_ATTRIB_COLOR
:
1859 memcpy(&sctx
->vs_blit_sh_data
[3], attrib
->color
,
1862 case UTIL_BLITTER_ATTRIB_TEXCOORD_XY
:
1863 case UTIL_BLITTER_ATTRIB_TEXCOORD_XYZW
:
1864 memcpy(&sctx
->vs_blit_sh_data
[3], &attrib
->texcoord
,
1865 sizeof(attrib
->texcoord
));
1867 case UTIL_BLITTER_ATTRIB_NONE
:;
1870 pipe
->bind_vs_state(pipe
, si_get_blitter_vs(sctx
, type
, num_instances
));
1872 struct pipe_draw_info info
= {};
1873 info
.mode
= SI_PRIM_RECTANGLE_LIST
;
1875 info
.instance_count
= num_instances
;
1877 /* Don't set per-stage shader pointers for VS. */
1878 sctx
->shader_pointers_dirty
&= ~SI_DESCS_SHADER_MASK(VERTEX
);
1879 sctx
->vertex_buffer_pointer_dirty
= false;
1881 si_draw_vbo(pipe
, &info
);
1884 void si_trace_emit(struct si_context
*sctx
)
1886 struct radeon_cmdbuf
*cs
= sctx
->gfx_cs
;
1887 uint32_t trace_id
= ++sctx
->current_saved_cs
->trace_id
;
1889 si_cp_write_data(sctx
, sctx
->current_saved_cs
->trace_buf
,
1890 0, 4, V_370_MEM
, V_370_ME
, &trace_id
);
1892 radeon_emit(cs
, PKT3(PKT3_NOP
, 0, 0));
1893 radeon_emit(cs
, AC_ENCODE_TRACE_POINT(trace_id
));
1896 u_log_flush(sctx
->log
);
1899 void si_init_draw_functions(struct si_context
*sctx
)
1901 sctx
->b
.draw_vbo
= si_draw_vbo
;
1903 sctx
->blitter
->draw_rectangle
= si_draw_rectangle
;
1905 si_init_ia_multi_vgt_param_table(sctx
);