2 * Copyright 2012 Advanced Micro Devices, Inc.
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * on the rights to use, copy, modify, merge, publish, distribute, sub
8 * license, and/or sell copies of the Software, and to permit persons to whom
9 * the Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
21 * USE OR OTHER DEALINGS IN THE SOFTWARE.
24 * Christian König <christian.koenig@amd.com>
28 #include "radeon/r600_cs.h"
32 #include "util/u_index_modify.h"
33 #include "util/u_log.h"
34 #include "util/u_upload_mgr.h"
35 #include "util/u_prim.h"
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 [R600_PRIM_RECTANGLE_LIST
] = V_008958_DI_PT_RECTLIST
59 assert(mode
< ARRAY_SIZE(prim_conv
));
60 return prim_conv
[mode
];
63 static unsigned si_conv_prim_to_gs_out(unsigned mode
)
65 static const int prim_conv
[] = {
66 [PIPE_PRIM_POINTS
] = V_028A6C_OUTPRIM_TYPE_POINTLIST
,
67 [PIPE_PRIM_LINES
] = V_028A6C_OUTPRIM_TYPE_LINESTRIP
,
68 [PIPE_PRIM_LINE_LOOP
] = V_028A6C_OUTPRIM_TYPE_LINESTRIP
,
69 [PIPE_PRIM_LINE_STRIP
] = V_028A6C_OUTPRIM_TYPE_LINESTRIP
,
70 [PIPE_PRIM_TRIANGLES
] = V_028A6C_OUTPRIM_TYPE_TRISTRIP
,
71 [PIPE_PRIM_TRIANGLE_STRIP
] = V_028A6C_OUTPRIM_TYPE_TRISTRIP
,
72 [PIPE_PRIM_TRIANGLE_FAN
] = V_028A6C_OUTPRIM_TYPE_TRISTRIP
,
73 [PIPE_PRIM_QUADS
] = V_028A6C_OUTPRIM_TYPE_TRISTRIP
,
74 [PIPE_PRIM_QUAD_STRIP
] = V_028A6C_OUTPRIM_TYPE_TRISTRIP
,
75 [PIPE_PRIM_POLYGON
] = V_028A6C_OUTPRIM_TYPE_TRISTRIP
,
76 [PIPE_PRIM_LINES_ADJACENCY
] = V_028A6C_OUTPRIM_TYPE_LINESTRIP
,
77 [PIPE_PRIM_LINE_STRIP_ADJACENCY
] = V_028A6C_OUTPRIM_TYPE_LINESTRIP
,
78 [PIPE_PRIM_TRIANGLES_ADJACENCY
] = V_028A6C_OUTPRIM_TYPE_TRISTRIP
,
79 [PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY
] = V_028A6C_OUTPRIM_TYPE_TRISTRIP
,
80 [PIPE_PRIM_PATCHES
] = V_028A6C_OUTPRIM_TYPE_POINTLIST
,
81 [R600_PRIM_RECTANGLE_LIST
] = V_028A6C_OUTPRIM_TYPE_TRISTRIP
83 assert(mode
< ARRAY_SIZE(prim_conv
));
85 return prim_conv
[mode
];
89 * This calculates the LDS size for tessellation shaders (VS, TCS, TES).
90 * LS.LDS_SIZE is shared by all 3 shader stages.
92 * The information about LDS and other non-compile-time parameters is then
93 * written to userdata SGPRs.
95 static void si_emit_derived_tess_state(struct si_context
*sctx
,
96 const struct pipe_draw_info
*info
,
97 unsigned *num_patches
)
99 struct radeon_winsys_cs
*cs
= sctx
->b
.gfx
.cs
;
100 struct si_shader
*ls_current
;
101 struct si_shader_selector
*ls
;
102 /* The TES pointer will only be used for sctx->last_tcs.
103 * It would be wrong to think that TCS = TES. */
104 struct si_shader_selector
*tcs
=
105 sctx
->tcs_shader
.cso
? sctx
->tcs_shader
.cso
: sctx
->tes_shader
.cso
;
106 unsigned tess_uses_primid
= sctx
->ia_multi_vgt_param_key
.u
.tess_uses_prim_id
;
107 bool has_primid_instancing_bug
= sctx
->b
.chip_class
== SI
&&
108 sctx
->b
.screen
->info
.max_se
== 1;
109 unsigned tes_sh_base
= sctx
->shader_pointers
.sh_base
[PIPE_SHADER_TESS_EVAL
];
110 unsigned num_tcs_input_cp
= info
->vertices_per_patch
;
111 unsigned num_tcs_output_cp
, num_tcs_inputs
, num_tcs_outputs
;
112 unsigned num_tcs_patch_outputs
;
113 unsigned input_vertex_size
, output_vertex_size
, pervertex_output_patch_size
;
114 unsigned input_patch_size
, output_patch_size
, output_patch0_offset
;
115 unsigned perpatch_output_offset
, lds_size
;
116 unsigned tcs_in_layout
, tcs_out_layout
, tcs_out_offsets
;
117 unsigned offchip_layout
, hardware_lds_size
, ls_hs_config
;
119 /* Since GFX9 has merged LS-HS in the TCS state, set LS = TCS. */
120 if (sctx
->b
.chip_class
>= GFX9
) {
121 if (sctx
->tcs_shader
.cso
)
122 ls_current
= sctx
->tcs_shader
.current
;
124 ls_current
= sctx
->fixed_func_tcs_shader
.current
;
126 ls
= ls_current
->key
.part
.tcs
.ls
;
128 ls_current
= sctx
->vs_shader
.current
;
129 ls
= sctx
->vs_shader
.cso
;
132 if (sctx
->last_ls
== ls_current
&&
133 sctx
->last_tcs
== tcs
&&
134 sctx
->last_tes_sh_base
== tes_sh_base
&&
135 sctx
->last_num_tcs_input_cp
== num_tcs_input_cp
&&
136 (!has_primid_instancing_bug
||
137 (sctx
->last_tess_uses_primid
== tess_uses_primid
))) {
138 *num_patches
= sctx
->last_num_patches
;
142 sctx
->last_ls
= ls_current
;
143 sctx
->last_tcs
= tcs
;
144 sctx
->last_tes_sh_base
= tes_sh_base
;
145 sctx
->last_num_tcs_input_cp
= num_tcs_input_cp
;
146 sctx
->last_tess_uses_primid
= tess_uses_primid
;
148 /* This calculates how shader inputs and outputs among VS, TCS, and TES
149 * are laid out in LDS. */
150 num_tcs_inputs
= util_last_bit64(ls
->outputs_written
);
152 if (sctx
->tcs_shader
.cso
) {
153 num_tcs_outputs
= util_last_bit64(tcs
->outputs_written
);
154 num_tcs_output_cp
= tcs
->info
.properties
[TGSI_PROPERTY_TCS_VERTICES_OUT
];
155 num_tcs_patch_outputs
= util_last_bit64(tcs
->patch_outputs_written
);
157 /* No TCS. Route varyings from LS to TES. */
158 num_tcs_outputs
= num_tcs_inputs
;
159 num_tcs_output_cp
= num_tcs_input_cp
;
160 num_tcs_patch_outputs
= 2; /* TESSINNER + TESSOUTER */
163 input_vertex_size
= num_tcs_inputs
* 16;
164 output_vertex_size
= num_tcs_outputs
* 16;
166 input_patch_size
= num_tcs_input_cp
* input_vertex_size
;
168 pervertex_output_patch_size
= num_tcs_output_cp
* output_vertex_size
;
169 output_patch_size
= pervertex_output_patch_size
+ num_tcs_patch_outputs
* 16;
171 /* Ensure that we only need one wave per SIMD so we don't need to check
172 * resource usage. Also ensures that the number of tcs in and out
173 * vertices per threadgroup are at most 256.
175 *num_patches
= 64 / MAX2(num_tcs_input_cp
, num_tcs_output_cp
) * 4;
177 /* Make sure that the data fits in LDS. This assumes the shaders only
178 * use LDS for the inputs and outputs.
180 * While CIK can use 64K per threadgroup, there is a hang on Stoney
181 * with 2 CUs if we use more than 32K. The closed Vulkan driver also
182 * uses 32K at most on all GCN chips.
184 hardware_lds_size
= 32768;
185 *num_patches
= MIN2(*num_patches
, hardware_lds_size
/ (input_patch_size
+
188 /* Make sure the output data fits in the offchip buffer */
189 *num_patches
= MIN2(*num_patches
,
190 (sctx
->screen
->tess_offchip_block_dw_size
* 4) /
193 /* Not necessary for correctness, but improves performance. The
194 * specific value is taken from the proprietary driver.
196 *num_patches
= MIN2(*num_patches
, 40);
198 if (sctx
->b
.chip_class
== SI
) {
199 /* SI bug workaround, related to power management. Limit LS-HS
200 * threadgroups to only one wave.
202 unsigned one_wave
= 64 / MAX2(num_tcs_input_cp
, num_tcs_output_cp
);
203 *num_patches
= MIN2(*num_patches
, one_wave
);
206 /* The VGT HS block increments the patch ID unconditionally
207 * within a single threadgroup. This results in incorrect
208 * patch IDs when instanced draws are used.
210 * The intended solution is to restrict threadgroups to
211 * a single instance by setting SWITCH_ON_EOI, which
212 * should cause IA to split instances up. However, this
213 * doesn't work correctly on SI when there is no other
216 if (has_primid_instancing_bug
&& tess_uses_primid
)
219 sctx
->last_num_patches
= *num_patches
;
221 output_patch0_offset
= input_patch_size
* *num_patches
;
222 perpatch_output_offset
= output_patch0_offset
+ pervertex_output_patch_size
;
224 /* Compute userdata SGPRs. */
225 assert(((input_vertex_size
/ 4) & ~0xff) == 0);
226 assert(((output_vertex_size
/ 4) & ~0xff) == 0);
227 assert(((input_patch_size
/ 4) & ~0x1fff) == 0);
228 assert(((output_patch_size
/ 4) & ~0x1fff) == 0);
229 assert(((output_patch0_offset
/ 16) & ~0xffff) == 0);
230 assert(((perpatch_output_offset
/ 16) & ~0xffff) == 0);
231 assert(num_tcs_input_cp
<= 32);
232 assert(num_tcs_output_cp
<= 32);
234 tcs_in_layout
= S_VS_STATE_LS_OUT_PATCH_SIZE(input_patch_size
/ 4) |
235 S_VS_STATE_LS_OUT_VERTEX_SIZE(input_vertex_size
/ 4);
236 tcs_out_layout
= (output_patch_size
/ 4) |
237 ((output_vertex_size
/ 4) << 13);
238 tcs_out_offsets
= (output_patch0_offset
/ 16) |
239 ((perpatch_output_offset
/ 16) << 16);
240 offchip_layout
= *num_patches
|
241 (num_tcs_output_cp
<< 6) |
242 (pervertex_output_patch_size
* *num_patches
<< 12);
244 /* Compute the LDS size. */
245 lds_size
= output_patch0_offset
+ output_patch_size
* *num_patches
;
247 if (sctx
->b
.chip_class
>= CIK
) {
248 assert(lds_size
<= 65536);
249 lds_size
= align(lds_size
, 512) / 512;
251 assert(lds_size
<= 32768);
252 lds_size
= align(lds_size
, 256) / 256;
255 /* Set SI_SGPR_VS_STATE_BITS. */
256 sctx
->current_vs_state
&= C_VS_STATE_LS_OUT_PATCH_SIZE
&
257 C_VS_STATE_LS_OUT_VERTEX_SIZE
;
258 sctx
->current_vs_state
|= tcs_in_layout
;
260 if (sctx
->b
.chip_class
>= GFX9
) {
261 unsigned hs_rsrc2
= ls_current
->config
.rsrc2
|
262 S_00B42C_LDS_SIZE(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
| (num_tcs_input_cp
<< 26));
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
->b
.chip_class
== CIK
&& sctx
->b
.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
| (num_tcs_input_cp
<< 26));
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
, r600_resource(sctx
->tess_offchip_ring
)->gpu_address
>> 16);
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
->b
.chip_class
>= CIK
)
306 radeon_set_context_reg_idx(cs
, R_028B58_VGT_LS_HS_CONFIG
, 2,
309 radeon_set_context_reg(cs
, R_028B58_VGT_LS_HS_CONFIG
,
313 static unsigned si_num_prims_for_vertices(const struct pipe_draw_info
*info
)
315 switch (info
->mode
) {
316 case PIPE_PRIM_PATCHES
:
317 return info
->count
/ info
->vertices_per_patch
;
318 case R600_PRIM_RECTANGLE_LIST
:
319 return info
->count
/ 3;
321 return u_prims_for_vertices(info
->mode
, info
->count
);
326 si_get_init_multi_vgt_param(struct si_screen
*sscreen
,
327 union si_vgt_param_key
*key
)
329 STATIC_ASSERT(sizeof(union si_vgt_param_key
) == 4);
330 unsigned max_primgroup_in_wave
= 2;
332 /* SWITCH_ON_EOP(0) is always preferable. */
333 bool wd_switch_on_eop
= false;
334 bool ia_switch_on_eop
= false;
335 bool ia_switch_on_eoi
= false;
336 bool partial_vs_wave
= false;
337 bool partial_es_wave
= false;
339 if (key
->u
.uses_tess
) {
340 /* SWITCH_ON_EOI must be set if PrimID is used. */
341 if (key
->u
.tess_uses_prim_id
)
342 ia_switch_on_eoi
= true;
344 /* Bug with tessellation and GS on Bonaire and older 2 SE chips. */
345 if ((sscreen
->b
.family
== CHIP_TAHITI
||
346 sscreen
->b
.family
== CHIP_PITCAIRN
||
347 sscreen
->b
.family
== CHIP_BONAIRE
) &&
349 partial_vs_wave
= true;
351 /* Needed for 028B6C_DISTRIBUTION_MODE != 0 */
352 if (sscreen
->has_distributed_tess
) {
353 if (key
->u
.uses_gs
) {
354 if (sscreen
->b
.chip_class
<= VI
)
355 partial_es_wave
= true;
357 /* GPU hang workaround. */
358 if (sscreen
->b
.family
== CHIP_TONGA
||
359 sscreen
->b
.family
== CHIP_FIJI
||
360 sscreen
->b
.family
== CHIP_POLARIS10
||
361 sscreen
->b
.family
== CHIP_POLARIS11
||
362 sscreen
->b
.family
== CHIP_POLARIS12
)
363 partial_vs_wave
= true;
365 partial_vs_wave
= true;
370 /* This is a hardware requirement. */
371 if (key
->u
.line_stipple_enabled
||
372 (sscreen
->b
.debug_flags
& DBG_SWITCH_ON_EOP
)) {
373 ia_switch_on_eop
= true;
374 wd_switch_on_eop
= true;
377 if (sscreen
->b
.chip_class
>= CIK
) {
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
->b
.info
.max_se
< 4 ||
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
->b
.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
->b
.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
->b
.chip_class
<= VI
&&
411 sscreen
->b
.info
.max_se
== 4 &&
412 key
->u
.multi_instances_smaller_than_primgroup
)
413 wd_switch_on_eop
= true;
415 /* Required on CIK and later. */
416 if (sscreen
->b
.info
.max_se
> 2 && !wd_switch_on_eop
)
417 ia_switch_on_eoi
= true;
419 /* Required by Hawaii and, for some special cases, by VI. */
420 if (ia_switch_on_eoi
&&
421 (sscreen
->b
.family
== CHIP_HAWAII
||
422 (sscreen
->b
.chip_class
== VI
&&
423 (key
->u
.uses_gs
|| max_primgroup_in_wave
!= 2))))
424 partial_vs_wave
= true;
426 /* Instancing bug on Bonaire. */
427 if (sscreen
->b
.family
== CHIP_BONAIRE
&& ia_switch_on_eoi
&&
428 key
->u
.uses_instancing
)
429 partial_vs_wave
= true;
431 /* If the WD switch is false, the IA switch must be false too. */
432 assert(wd_switch_on_eop
|| !ia_switch_on_eop
);
435 /* If SWITCH_ON_EOI is set, PARTIAL_ES_WAVE must be set too. */
436 if (sscreen
->b
.chip_class
<= VI
&& ia_switch_on_eoi
)
437 partial_es_wave
= true;
439 return S_028AA8_SWITCH_ON_EOP(ia_switch_on_eop
) |
440 S_028AA8_SWITCH_ON_EOI(ia_switch_on_eoi
) |
441 S_028AA8_PARTIAL_VS_WAVE_ON(partial_vs_wave
) |
442 S_028AA8_PARTIAL_ES_WAVE_ON(partial_es_wave
) |
443 S_028AA8_WD_SWITCH_ON_EOP(sscreen
->b
.chip_class
>= CIK
? wd_switch_on_eop
: 0) |
444 /* The following field was moved to VGT_SHADER_STAGES_EN in GFX9. */
445 S_028AA8_MAX_PRIMGRP_IN_WAVE(sscreen
->b
.chip_class
== VI
?
446 max_primgroup_in_wave
: 0) |
447 S_030960_EN_INST_OPT_BASIC(sscreen
->b
.chip_class
>= GFX9
) |
448 S_030960_EN_INST_OPT_ADV(sscreen
->b
.chip_class
>= GFX9
);
451 void si_init_ia_multi_vgt_param_table(struct si_context
*sctx
)
453 for (int prim
= 0; prim
<= R600_PRIM_RECTANGLE_LIST
; prim
++)
454 for (int uses_instancing
= 0; uses_instancing
< 2; uses_instancing
++)
455 for (int multi_instances
= 0; multi_instances
< 2; multi_instances
++)
456 for (int primitive_restart
= 0; primitive_restart
< 2; primitive_restart
++)
457 for (int count_from_so
= 0; count_from_so
< 2; count_from_so
++)
458 for (int line_stipple
= 0; line_stipple
< 2; line_stipple
++)
459 for (int uses_tess
= 0; uses_tess
< 2; uses_tess
++)
460 for (int tess_uses_primid
= 0; tess_uses_primid
< 2; tess_uses_primid
++)
461 for (int uses_gs
= 0; uses_gs
< 2; uses_gs
++) {
462 union si_vgt_param_key key
;
466 key
.u
.uses_instancing
= uses_instancing
;
467 key
.u
.multi_instances_smaller_than_primgroup
= multi_instances
;
468 key
.u
.primitive_restart
= primitive_restart
;
469 key
.u
.count_from_stream_output
= count_from_so
;
470 key
.u
.line_stipple_enabled
= line_stipple
;
471 key
.u
.uses_tess
= uses_tess
;
472 key
.u
.tess_uses_prim_id
= tess_uses_primid
;
473 key
.u
.uses_gs
= uses_gs
;
475 sctx
->ia_multi_vgt_param
[key
.index
] =
476 si_get_init_multi_vgt_param(sctx
->screen
, &key
);
480 static unsigned si_get_ia_multi_vgt_param(struct si_context
*sctx
,
481 const struct pipe_draw_info
*info
,
482 unsigned num_patches
)
484 union si_vgt_param_key key
= sctx
->ia_multi_vgt_param_key
;
485 unsigned primgroup_size
;
486 unsigned ia_multi_vgt_param
;
488 if (sctx
->tes_shader
.cso
) {
489 primgroup_size
= num_patches
; /* must be a multiple of NUM_PATCHES */
490 } else if (sctx
->gs_shader
.cso
) {
491 primgroup_size
= 64; /* recommended with a GS */
493 primgroup_size
= 128; /* recommended without a GS and tess */
496 key
.u
.prim
= info
->mode
;
497 key
.u
.uses_instancing
= info
->indirect
|| info
->instance_count
> 1;
498 key
.u
.multi_instances_smaller_than_primgroup
=
500 (info
->instance_count
> 1 &&
501 (info
->count_from_stream_output
||
502 si_num_prims_for_vertices(info
) < primgroup_size
));
503 key
.u
.primitive_restart
= info
->primitive_restart
;
504 key
.u
.count_from_stream_output
= info
->count_from_stream_output
!= NULL
;
506 ia_multi_vgt_param
= sctx
->ia_multi_vgt_param
[key
.index
] |
507 S_028AA8_PRIMGROUP_SIZE(primgroup_size
- 1);
509 if (sctx
->gs_shader
.cso
) {
510 /* GS requirement. */
511 if (sctx
->b
.chip_class
<= VI
&&
512 SI_GS_PER_ES
/ primgroup_size
>= sctx
->screen
->gs_table_depth
- 3)
513 ia_multi_vgt_param
|= S_028AA8_PARTIAL_ES_WAVE_ON(1);
515 /* GS hw bug with single-primitive instances and SWITCH_ON_EOI.
516 * The hw doc says all multi-SE chips are affected, but Vulkan
517 * only applies it to Hawaii. Do what Vulkan does.
519 if (sctx
->b
.family
== CHIP_HAWAII
&&
520 G_028AA8_SWITCH_ON_EOI(ia_multi_vgt_param
) &&
522 (info
->instance_count
> 1 &&
523 (info
->count_from_stream_output
||
524 si_num_prims_for_vertices(info
) <= 1))))
525 sctx
->b
.flags
|= SI_CONTEXT_VGT_FLUSH
;
528 return ia_multi_vgt_param
;
531 /* rast_prim is the primitive type after GS. */
532 static void si_emit_rasterizer_prim_state(struct si_context
*sctx
)
534 struct radeon_winsys_cs
*cs
= sctx
->b
.gfx
.cs
;
535 enum pipe_prim_type rast_prim
= sctx
->current_rast_prim
;
536 struct si_state_rasterizer
*rs
= sctx
->emitted
.named
.rasterizer
;
538 /* Skip this if not rendering lines. */
539 if (rast_prim
!= PIPE_PRIM_LINES
&&
540 rast_prim
!= PIPE_PRIM_LINE_LOOP
&&
541 rast_prim
!= PIPE_PRIM_LINE_STRIP
&&
542 rast_prim
!= PIPE_PRIM_LINES_ADJACENCY
&&
543 rast_prim
!= PIPE_PRIM_LINE_STRIP_ADJACENCY
)
546 if (rast_prim
== sctx
->last_rast_prim
&&
547 rs
->pa_sc_line_stipple
== sctx
->last_sc_line_stipple
)
550 /* For lines, reset the stipple pattern at each primitive. Otherwise,
551 * reset the stipple pattern at each packet (line strips, line loops).
553 radeon_set_context_reg(cs
, R_028A0C_PA_SC_LINE_STIPPLE
,
554 rs
->pa_sc_line_stipple
|
555 S_028A0C_AUTO_RESET_CNTL(rast_prim
== PIPE_PRIM_LINES
? 1 : 2));
557 sctx
->last_rast_prim
= rast_prim
;
558 sctx
->last_sc_line_stipple
= rs
->pa_sc_line_stipple
;
561 static void si_emit_vs_state(struct si_context
*sctx
,
562 const struct pipe_draw_info
*info
)
564 sctx
->current_vs_state
&= C_VS_STATE_INDEXED
;
565 sctx
->current_vs_state
|= S_VS_STATE_INDEXED(!!info
->index_size
);
567 if (sctx
->current_vs_state
!= sctx
->last_vs_state
) {
568 struct radeon_winsys_cs
*cs
= sctx
->b
.gfx
.cs
;
570 radeon_set_sh_reg(cs
,
571 sctx
->shader_pointers
.sh_base
[PIPE_SHADER_VERTEX
] +
572 SI_SGPR_VS_STATE_BITS
* 4,
573 sctx
->current_vs_state
);
575 sctx
->last_vs_state
= sctx
->current_vs_state
;
579 static void si_emit_draw_registers(struct si_context
*sctx
,
580 const struct pipe_draw_info
*info
,
581 unsigned num_patches
)
583 struct radeon_winsys_cs
*cs
= sctx
->b
.gfx
.cs
;
584 unsigned prim
= si_conv_pipe_prim(info
->mode
);
585 unsigned gs_out_prim
= si_conv_prim_to_gs_out(sctx
->current_rast_prim
);
586 unsigned ia_multi_vgt_param
;
588 ia_multi_vgt_param
= si_get_ia_multi_vgt_param(sctx
, info
, num_patches
);
591 if (ia_multi_vgt_param
!= sctx
->last_multi_vgt_param
) {
592 if (sctx
->b
.chip_class
>= GFX9
)
593 radeon_set_uconfig_reg_idx(cs
, R_030960_IA_MULTI_VGT_PARAM
, 4, ia_multi_vgt_param
);
594 else if (sctx
->b
.chip_class
>= CIK
)
595 radeon_set_context_reg_idx(cs
, R_028AA8_IA_MULTI_VGT_PARAM
, 1, ia_multi_vgt_param
);
597 radeon_set_context_reg(cs
, R_028AA8_IA_MULTI_VGT_PARAM
, ia_multi_vgt_param
);
599 sctx
->last_multi_vgt_param
= ia_multi_vgt_param
;
601 if (prim
!= sctx
->last_prim
) {
602 if (sctx
->b
.chip_class
>= CIK
)
603 radeon_set_uconfig_reg_idx(cs
, R_030908_VGT_PRIMITIVE_TYPE
, 1, prim
);
605 radeon_set_config_reg(cs
, R_008958_VGT_PRIMITIVE_TYPE
, prim
);
607 sctx
->last_prim
= prim
;
610 if (gs_out_prim
!= sctx
->last_gs_out_prim
) {
611 radeon_set_context_reg(cs
, R_028A6C_VGT_GS_OUT_PRIM_TYPE
, gs_out_prim
);
612 sctx
->last_gs_out_prim
= gs_out_prim
;
615 /* Primitive restart. */
616 if (info
->primitive_restart
!= sctx
->last_primitive_restart_en
) {
617 if (sctx
->b
.chip_class
>= GFX9
)
618 radeon_set_uconfig_reg(cs
, R_03092C_VGT_MULTI_PRIM_IB_RESET_EN
,
619 info
->primitive_restart
);
621 radeon_set_context_reg(cs
, R_028A94_VGT_MULTI_PRIM_IB_RESET_EN
,
622 info
->primitive_restart
);
624 sctx
->last_primitive_restart_en
= info
->primitive_restart
;
627 if (info
->primitive_restart
&&
628 (info
->restart_index
!= sctx
->last_restart_index
||
629 sctx
->last_restart_index
== SI_RESTART_INDEX_UNKNOWN
)) {
630 radeon_set_context_reg(cs
, R_02840C_VGT_MULTI_PRIM_IB_RESET_INDX
,
631 info
->restart_index
);
632 sctx
->last_restart_index
= info
->restart_index
;
636 static void si_emit_draw_packets(struct si_context
*sctx
,
637 const struct pipe_draw_info
*info
,
638 struct pipe_resource
*indexbuf
,
640 unsigned index_offset
)
642 struct pipe_draw_indirect_info
*indirect
= info
->indirect
;
643 struct radeon_winsys_cs
*cs
= sctx
->b
.gfx
.cs
;
644 unsigned sh_base_reg
= sctx
->shader_pointers
.sh_base
[PIPE_SHADER_VERTEX
];
645 bool render_cond_bit
= sctx
->b
.render_cond
&& !sctx
->b
.render_cond_force_off
;
646 uint32_t index_max_size
= 0;
647 uint64_t index_va
= 0;
649 if (info
->count_from_stream_output
) {
650 struct r600_so_target
*t
=
651 (struct r600_so_target
*)info
->count_from_stream_output
;
652 uint64_t va
= t
->buf_filled_size
->gpu_address
+
653 t
->buf_filled_size_offset
;
655 radeon_set_context_reg(cs
, R_028B30_VGT_STRMOUT_DRAW_OPAQUE_VERTEX_STRIDE
,
658 radeon_emit(cs
, PKT3(PKT3_COPY_DATA
, 4, 0));
659 radeon_emit(cs
, COPY_DATA_SRC_SEL(COPY_DATA_MEM
) |
660 COPY_DATA_DST_SEL(COPY_DATA_REG
) |
661 COPY_DATA_WR_CONFIRM
);
662 radeon_emit(cs
, va
); /* src address lo */
663 radeon_emit(cs
, va
>> 32); /* src address hi */
664 radeon_emit(cs
, R_028B2C_VGT_STRMOUT_DRAW_OPAQUE_BUFFER_FILLED_SIZE
>> 2);
665 radeon_emit(cs
, 0); /* unused */
667 radeon_add_to_buffer_list(&sctx
->b
, &sctx
->b
.gfx
,
668 t
->buf_filled_size
, RADEON_USAGE_READ
,
669 RADEON_PRIO_SO_FILLED_SIZE
);
674 if (index_size
!= sctx
->last_index_size
) {
678 switch (index_size
) {
680 index_type
= V_028A7C_VGT_INDEX_8
;
683 index_type
= V_028A7C_VGT_INDEX_16
|
684 (SI_BIG_ENDIAN
&& sctx
->b
.chip_class
<= CIK
?
685 V_028A7C_VGT_DMA_SWAP_16_BIT
: 0);
688 index_type
= V_028A7C_VGT_INDEX_32
|
689 (SI_BIG_ENDIAN
&& sctx
->b
.chip_class
<= CIK
?
690 V_028A7C_VGT_DMA_SWAP_32_BIT
: 0);
693 assert(!"unreachable");
697 if (sctx
->b
.chip_class
>= GFX9
) {
698 radeon_set_uconfig_reg_idx(cs
, R_03090C_VGT_INDEX_TYPE
,
701 radeon_emit(cs
, PKT3(PKT3_INDEX_TYPE
, 0, 0));
702 radeon_emit(cs
, index_type
);
705 sctx
->last_index_size
= index_size
;
708 index_max_size
= (indexbuf
->width0
- index_offset
) /
710 index_va
= r600_resource(indexbuf
)->gpu_address
+ index_offset
;
712 radeon_add_to_buffer_list(&sctx
->b
, &sctx
->b
.gfx
,
713 (struct r600_resource
*)indexbuf
,
714 RADEON_USAGE_READ
, RADEON_PRIO_INDEX_BUFFER
);
716 /* On CI and later, non-indexed draws overwrite VGT_INDEX_TYPE,
717 * so the state must be re-emitted before the next indexed draw.
719 if (sctx
->b
.chip_class
>= CIK
)
720 sctx
->last_index_size
= -1;
724 uint64_t indirect_va
= r600_resource(indirect
->buffer
)->gpu_address
;
726 assert(indirect_va
% 8 == 0);
728 si_invalidate_draw_sh_constants(sctx
);
730 radeon_emit(cs
, PKT3(PKT3_SET_BASE
, 2, 0));
732 radeon_emit(cs
, indirect_va
);
733 radeon_emit(cs
, indirect_va
>> 32);
735 radeon_add_to_buffer_list(&sctx
->b
, &sctx
->b
.gfx
,
736 (struct r600_resource
*)indirect
->buffer
,
737 RADEON_USAGE_READ
, RADEON_PRIO_DRAW_INDIRECT
);
739 unsigned di_src_sel
= index_size
? V_0287F0_DI_SRC_SEL_DMA
740 : V_0287F0_DI_SRC_SEL_AUTO_INDEX
;
742 assert(indirect
->offset
% 4 == 0);
745 radeon_emit(cs
, PKT3(PKT3_INDEX_BASE
, 1, 0));
746 radeon_emit(cs
, index_va
);
747 radeon_emit(cs
, index_va
>> 32);
749 radeon_emit(cs
, PKT3(PKT3_INDEX_BUFFER_SIZE
, 0, 0));
750 radeon_emit(cs
, index_max_size
);
753 if (!sctx
->screen
->has_draw_indirect_multi
) {
754 radeon_emit(cs
, PKT3(index_size
? PKT3_DRAW_INDEX_INDIRECT
755 : PKT3_DRAW_INDIRECT
,
756 3, render_cond_bit
));
757 radeon_emit(cs
, indirect
->offset
);
758 radeon_emit(cs
, (sh_base_reg
+ SI_SGPR_BASE_VERTEX
* 4 - SI_SH_REG_OFFSET
) >> 2);
759 radeon_emit(cs
, (sh_base_reg
+ SI_SGPR_START_INSTANCE
* 4 - SI_SH_REG_OFFSET
) >> 2);
760 radeon_emit(cs
, di_src_sel
);
762 uint64_t count_va
= 0;
764 if (indirect
->indirect_draw_count
) {
765 struct r600_resource
*params_buf
=
766 (struct r600_resource
*)indirect
->indirect_draw_count
;
768 radeon_add_to_buffer_list(
769 &sctx
->b
, &sctx
->b
.gfx
, params_buf
,
770 RADEON_USAGE_READ
, RADEON_PRIO_DRAW_INDIRECT
);
772 count_va
= params_buf
->gpu_address
+ indirect
->indirect_draw_count_offset
;
775 radeon_emit(cs
, PKT3(index_size
? PKT3_DRAW_INDEX_INDIRECT_MULTI
:
776 PKT3_DRAW_INDIRECT_MULTI
,
777 8, render_cond_bit
));
778 radeon_emit(cs
, indirect
->offset
);
779 radeon_emit(cs
, (sh_base_reg
+ SI_SGPR_BASE_VERTEX
* 4 - SI_SH_REG_OFFSET
) >> 2);
780 radeon_emit(cs
, (sh_base_reg
+ SI_SGPR_START_INSTANCE
* 4 - SI_SH_REG_OFFSET
) >> 2);
781 radeon_emit(cs
, ((sh_base_reg
+ SI_SGPR_DRAWID
* 4 - SI_SH_REG_OFFSET
) >> 2) |
782 S_2C3_DRAW_INDEX_ENABLE(1) |
783 S_2C3_COUNT_INDIRECT_ENABLE(!!indirect
->indirect_draw_count
));
784 radeon_emit(cs
, indirect
->draw_count
);
785 radeon_emit(cs
, count_va
);
786 radeon_emit(cs
, count_va
>> 32);
787 radeon_emit(cs
, indirect
->stride
);
788 radeon_emit(cs
, di_src_sel
);
793 radeon_emit(cs
, PKT3(PKT3_NUM_INSTANCES
, 0, 0));
794 radeon_emit(cs
, info
->instance_count
);
796 /* Base vertex and start instance. */
797 base_vertex
= index_size
? info
->index_bias
: info
->start
;
799 if (base_vertex
!= sctx
->last_base_vertex
||
800 sctx
->last_base_vertex
== SI_BASE_VERTEX_UNKNOWN
||
801 info
->start_instance
!= sctx
->last_start_instance
||
802 info
->drawid
!= sctx
->last_drawid
||
803 sh_base_reg
!= sctx
->last_sh_base_reg
) {
804 radeon_set_sh_reg_seq(cs
, sh_base_reg
+ SI_SGPR_BASE_VERTEX
* 4, 3);
805 radeon_emit(cs
, base_vertex
);
806 radeon_emit(cs
, info
->start_instance
);
807 radeon_emit(cs
, info
->drawid
);
809 sctx
->last_base_vertex
= base_vertex
;
810 sctx
->last_start_instance
= info
->start_instance
;
811 sctx
->last_drawid
= info
->drawid
;
812 sctx
->last_sh_base_reg
= sh_base_reg
;
816 index_va
+= info
->start
* index_size
;
818 radeon_emit(cs
, PKT3(PKT3_DRAW_INDEX_2
, 4, render_cond_bit
));
819 radeon_emit(cs
, index_max_size
);
820 radeon_emit(cs
, index_va
);
821 radeon_emit(cs
, index_va
>> 32);
822 radeon_emit(cs
, info
->count
);
823 radeon_emit(cs
, V_0287F0_DI_SRC_SEL_DMA
);
825 radeon_emit(cs
, PKT3(PKT3_DRAW_INDEX_AUTO
, 1, render_cond_bit
));
826 radeon_emit(cs
, info
->count
);
827 radeon_emit(cs
, V_0287F0_DI_SRC_SEL_AUTO_INDEX
|
828 S_0287F0_USE_OPAQUE(!!info
->count_from_stream_output
));
833 static void si_emit_surface_sync(struct r600_common_context
*rctx
,
834 unsigned cp_coher_cntl
)
836 struct radeon_winsys_cs
*cs
= rctx
->gfx
.cs
;
838 if (rctx
->chip_class
>= GFX9
) {
839 /* Flush caches and wait for the caches to assert idle. */
840 radeon_emit(cs
, PKT3(PKT3_ACQUIRE_MEM
, 5, 0));
841 radeon_emit(cs
, cp_coher_cntl
); /* CP_COHER_CNTL */
842 radeon_emit(cs
, 0xffffffff); /* CP_COHER_SIZE */
843 radeon_emit(cs
, 0xffffff); /* CP_COHER_SIZE_HI */
844 radeon_emit(cs
, 0); /* CP_COHER_BASE */
845 radeon_emit(cs
, 0); /* CP_COHER_BASE_HI */
846 radeon_emit(cs
, 0x0000000A); /* POLL_INTERVAL */
848 /* ACQUIRE_MEM is only required on a compute ring. */
849 radeon_emit(cs
, PKT3(PKT3_SURFACE_SYNC
, 3, 0));
850 radeon_emit(cs
, cp_coher_cntl
); /* CP_COHER_CNTL */
851 radeon_emit(cs
, 0xffffffff); /* CP_COHER_SIZE */
852 radeon_emit(cs
, 0); /* CP_COHER_BASE */
853 radeon_emit(cs
, 0x0000000A); /* POLL_INTERVAL */
857 void si_emit_cache_flush(struct si_context
*sctx
)
859 struct r600_common_context
*rctx
= &sctx
->b
;
860 struct radeon_winsys_cs
*cs
= rctx
->gfx
.cs
;
861 uint32_t cp_coher_cntl
= 0;
862 uint32_t flush_cb_db
= rctx
->flags
& (SI_CONTEXT_FLUSH_AND_INV_CB
|
863 SI_CONTEXT_FLUSH_AND_INV_DB
);
865 if (rctx
->flags
& SI_CONTEXT_FLUSH_AND_INV_CB
)
866 sctx
->b
.num_cb_cache_flushes
++;
867 if (rctx
->flags
& SI_CONTEXT_FLUSH_AND_INV_DB
)
868 sctx
->b
.num_db_cache_flushes
++;
870 /* SI has a bug that it always flushes ICACHE and KCACHE if either
871 * bit is set. An alternative way is to write SQC_CACHES, but that
872 * doesn't seem to work reliably. Since the bug doesn't affect
873 * correctness (it only does more work than necessary) and
874 * the performance impact is likely negligible, there is no plan
875 * to add a workaround for it.
878 if (rctx
->flags
& SI_CONTEXT_INV_ICACHE
)
879 cp_coher_cntl
|= S_0085F0_SH_ICACHE_ACTION_ENA(1);
880 if (rctx
->flags
& SI_CONTEXT_INV_SMEM_L1
)
881 cp_coher_cntl
|= S_0085F0_SH_KCACHE_ACTION_ENA(1);
883 if (rctx
->chip_class
<= VI
) {
884 if (rctx
->flags
& SI_CONTEXT_FLUSH_AND_INV_CB
) {
885 cp_coher_cntl
|= S_0085F0_CB_ACTION_ENA(1) |
886 S_0085F0_CB0_DEST_BASE_ENA(1) |
887 S_0085F0_CB1_DEST_BASE_ENA(1) |
888 S_0085F0_CB2_DEST_BASE_ENA(1) |
889 S_0085F0_CB3_DEST_BASE_ENA(1) |
890 S_0085F0_CB4_DEST_BASE_ENA(1) |
891 S_0085F0_CB5_DEST_BASE_ENA(1) |
892 S_0085F0_CB6_DEST_BASE_ENA(1) |
893 S_0085F0_CB7_DEST_BASE_ENA(1);
895 /* Necessary for DCC */
896 if (rctx
->chip_class
== VI
)
897 r600_gfx_write_event_eop(rctx
, V_028A90_FLUSH_AND_INV_CB_DATA_TS
,
898 0, EOP_DATA_SEL_DISCARD
, NULL
,
899 0, 0, R600_NOT_QUERY
);
901 if (rctx
->flags
& SI_CONTEXT_FLUSH_AND_INV_DB
)
902 cp_coher_cntl
|= S_0085F0_DB_ACTION_ENA(1) |
903 S_0085F0_DB_DEST_BASE_ENA(1);
906 if (rctx
->flags
& SI_CONTEXT_FLUSH_AND_INV_CB
) {
907 /* Flush CMASK/FMASK/DCC. SURFACE_SYNC will wait for idle. */
908 radeon_emit(cs
, PKT3(PKT3_EVENT_WRITE
, 0, 0));
909 radeon_emit(cs
, EVENT_TYPE(V_028A90_FLUSH_AND_INV_CB_META
) | EVENT_INDEX(0));
911 if (rctx
->flags
& (SI_CONTEXT_FLUSH_AND_INV_DB
|
912 SI_CONTEXT_FLUSH_AND_INV_DB_META
)) {
913 /* Flush HTILE. SURFACE_SYNC will wait for idle. */
914 radeon_emit(cs
, PKT3(PKT3_EVENT_WRITE
, 0, 0));
915 radeon_emit(cs
, EVENT_TYPE(V_028A90_FLUSH_AND_INV_DB_META
) | EVENT_INDEX(0));
918 /* Wait for shader engines to go idle.
919 * VS and PS waits are unnecessary if SURFACE_SYNC is going to wait
920 * for everything including CB/DB cache flushes.
923 if (rctx
->flags
& SI_CONTEXT_PS_PARTIAL_FLUSH
) {
924 radeon_emit(cs
, PKT3(PKT3_EVENT_WRITE
, 0, 0));
925 radeon_emit(cs
, EVENT_TYPE(V_028A90_PS_PARTIAL_FLUSH
) | EVENT_INDEX(4));
926 /* Only count explicit shader flushes, not implicit ones
927 * done by SURFACE_SYNC.
929 rctx
->num_vs_flushes
++;
930 rctx
->num_ps_flushes
++;
931 } else if (rctx
->flags
& SI_CONTEXT_VS_PARTIAL_FLUSH
) {
932 radeon_emit(cs
, PKT3(PKT3_EVENT_WRITE
, 0, 0));
933 radeon_emit(cs
, EVENT_TYPE(V_028A90_VS_PARTIAL_FLUSH
) | EVENT_INDEX(4));
934 rctx
->num_vs_flushes
++;
938 if (rctx
->flags
& SI_CONTEXT_CS_PARTIAL_FLUSH
&&
939 sctx
->compute_is_busy
) {
940 radeon_emit(cs
, PKT3(PKT3_EVENT_WRITE
, 0, 0));
941 radeon_emit(cs
, EVENT_TYPE(V_028A90_CS_PARTIAL_FLUSH
| EVENT_INDEX(4)));
942 rctx
->num_cs_flushes
++;
943 sctx
->compute_is_busy
= false;
946 /* VGT state synchronization. */
947 if (rctx
->flags
& SI_CONTEXT_VGT_FLUSH
) {
948 radeon_emit(cs
, PKT3(PKT3_EVENT_WRITE
, 0, 0));
949 radeon_emit(cs
, EVENT_TYPE(V_028A90_VGT_FLUSH
) | EVENT_INDEX(0));
951 if (rctx
->flags
& SI_CONTEXT_VGT_STREAMOUT_SYNC
) {
952 radeon_emit(cs
, PKT3(PKT3_EVENT_WRITE
, 0, 0));
953 radeon_emit(cs
, EVENT_TYPE(V_028A90_VGT_STREAMOUT_SYNC
) | EVENT_INDEX(0));
956 /* GFX9: Wait for idle if we're flushing CB or DB. ACQUIRE_MEM doesn't
957 * wait for idle on GFX9. We have to use a TS event.
959 if (sctx
->b
.chip_class
>= GFX9
&& flush_cb_db
) {
961 unsigned tc_flags
, cb_db_event
;
963 /* Set the CB/DB flush event. */
964 switch (flush_cb_db
) {
965 case SI_CONTEXT_FLUSH_AND_INV_CB
:
966 cb_db_event
= V_028A90_FLUSH_AND_INV_CB_DATA_TS
;
968 case SI_CONTEXT_FLUSH_AND_INV_DB
:
969 cb_db_event
= V_028A90_FLUSH_AND_INV_DB_DATA_TS
;
973 cb_db_event
= V_028A90_CACHE_FLUSH_AND_INV_TS_EVENT
;
976 /* These are the only allowed combinations. If you need to
977 * do multiple operations at once, do them separately.
978 * All operations that invalidate L2 also seem to invalidate
979 * metadata. Volatile (VOL) and WC flushes are not listed here.
981 * TC | TC_WB = writeback & invalidate L2 & L1
982 * TC | TC_WB | TC_NC = writeback & invalidate L2 for MTYPE == NC
983 * TC_WB | TC_NC = writeback L2 for MTYPE == NC
984 * TC | TC_NC = invalidate L2 for MTYPE == NC
985 * TC | TC_MD = writeback & invalidate L2 metadata (DCC, etc.)
986 * TCL1 = invalidate L1
990 if (rctx
->flags
& SI_CONTEXT_INV_L2_METADATA
) {
991 tc_flags
= EVENT_TC_ACTION_ENA
|
992 EVENT_TC_MD_ACTION_ENA
;
995 /* Ideally flush TC together with CB/DB. */
996 if (rctx
->flags
& SI_CONTEXT_INV_GLOBAL_L2
) {
997 /* Writeback and invalidate everything in L2 & L1. */
998 tc_flags
= EVENT_TC_ACTION_ENA
|
999 EVENT_TC_WB_ACTION_ENA
;
1001 /* Clear the flags. */
1002 rctx
->flags
&= ~(SI_CONTEXT_INV_GLOBAL_L2
|
1003 SI_CONTEXT_WRITEBACK_GLOBAL_L2
|
1004 SI_CONTEXT_INV_VMEM_L1
);
1005 sctx
->b
.num_L2_invalidates
++;
1008 /* Do the flush (enqueue the event and wait for it). */
1009 va
= sctx
->wait_mem_scratch
->gpu_address
;
1010 sctx
->wait_mem_number
++;
1012 r600_gfx_write_event_eop(rctx
, cb_db_event
, tc_flags
,
1013 EOP_DATA_SEL_VALUE_32BIT
,
1014 sctx
->wait_mem_scratch
, va
,
1015 sctx
->wait_mem_number
, R600_NOT_QUERY
);
1016 r600_gfx_wait_fence(rctx
, va
, sctx
->wait_mem_number
, 0xffffffff);
1019 /* Make sure ME is idle (it executes most packets) before continuing.
1020 * This prevents read-after-write hazards between PFP and ME.
1022 if (cp_coher_cntl
||
1023 (rctx
->flags
& (SI_CONTEXT_CS_PARTIAL_FLUSH
|
1024 SI_CONTEXT_INV_VMEM_L1
|
1025 SI_CONTEXT_INV_GLOBAL_L2
|
1026 SI_CONTEXT_WRITEBACK_GLOBAL_L2
))) {
1027 radeon_emit(cs
, PKT3(PKT3_PFP_SYNC_ME
, 0, 0));
1032 * When one of the CP_COHER_CNTL.DEST_BASE flags is set, SURFACE_SYNC
1033 * waits for idle, so it should be last. SURFACE_SYNC is done in PFP.
1035 * cp_coher_cntl should contain all necessary flags except TC flags
1038 * SI-CIK don't support L2 write-back.
1040 if (rctx
->flags
& SI_CONTEXT_INV_GLOBAL_L2
||
1041 (rctx
->chip_class
<= CIK
&&
1042 (rctx
->flags
& SI_CONTEXT_WRITEBACK_GLOBAL_L2
))) {
1043 /* Invalidate L1 & L2. (L1 is always invalidated on SI)
1044 * WB must be set on VI+ when TC_ACTION is set.
1046 si_emit_surface_sync(rctx
, cp_coher_cntl
|
1047 S_0085F0_TC_ACTION_ENA(1) |
1048 S_0085F0_TCL1_ACTION_ENA(1) |
1049 S_0301F0_TC_WB_ACTION_ENA(rctx
->chip_class
>= VI
));
1051 sctx
->b
.num_L2_invalidates
++;
1053 /* L1 invalidation and L2 writeback must be done separately,
1054 * because both operations can't be done together.
1056 if (rctx
->flags
& SI_CONTEXT_WRITEBACK_GLOBAL_L2
) {
1058 * NC = apply to non-coherent MTYPEs
1059 * (i.e. MTYPE <= 1, which is what we use everywhere)
1061 * WB doesn't work without NC.
1063 si_emit_surface_sync(rctx
, cp_coher_cntl
|
1064 S_0301F0_TC_WB_ACTION_ENA(1) |
1065 S_0301F0_TC_NC_ACTION_ENA(1));
1067 sctx
->b
.num_L2_writebacks
++;
1069 if (rctx
->flags
& SI_CONTEXT_INV_VMEM_L1
) {
1070 /* Invalidate per-CU VMEM L1. */
1071 si_emit_surface_sync(rctx
, cp_coher_cntl
|
1072 S_0085F0_TCL1_ACTION_ENA(1));
1077 /* If TC flushes haven't cleared this... */
1079 si_emit_surface_sync(rctx
, cp_coher_cntl
);
1081 if (rctx
->flags
& R600_CONTEXT_START_PIPELINE_STATS
) {
1082 radeon_emit(cs
, PKT3(PKT3_EVENT_WRITE
, 0, 0));
1083 radeon_emit(cs
, EVENT_TYPE(V_028A90_PIPELINESTAT_START
) |
1085 } else if (rctx
->flags
& R600_CONTEXT_STOP_PIPELINE_STATS
) {
1086 radeon_emit(cs
, PKT3(PKT3_EVENT_WRITE
, 0, 0));
1087 radeon_emit(cs
, EVENT_TYPE(V_028A90_PIPELINESTAT_STOP
) |
1094 static void si_get_draw_start_count(struct si_context
*sctx
,
1095 const struct pipe_draw_info
*info
,
1096 unsigned *start
, unsigned *count
)
1098 struct pipe_draw_indirect_info
*indirect
= info
->indirect
;
1101 unsigned indirect_count
;
1102 struct pipe_transfer
*transfer
;
1103 unsigned begin
, end
;
1107 if (indirect
->indirect_draw_count
) {
1108 data
= pipe_buffer_map_range(&sctx
->b
.b
,
1109 indirect
->indirect_draw_count
,
1110 indirect
->indirect_draw_count_offset
,
1112 PIPE_TRANSFER_READ
, &transfer
);
1114 indirect_count
= *data
;
1116 pipe_buffer_unmap(&sctx
->b
.b
, transfer
);
1118 indirect_count
= indirect
->draw_count
;
1121 if (!indirect_count
) {
1122 *start
= *count
= 0;
1126 map_size
= (indirect_count
- 1) * indirect
->stride
+ 3 * sizeof(unsigned);
1127 data
= pipe_buffer_map_range(&sctx
->b
.b
, indirect
->buffer
,
1128 indirect
->offset
, map_size
,
1129 PIPE_TRANSFER_READ
, &transfer
);
1134 for (unsigned i
= 0; i
< indirect_count
; ++i
) {
1135 unsigned count
= data
[0];
1136 unsigned start
= data
[2];
1139 begin
= MIN2(begin
, start
);
1140 end
= MAX2(end
, start
+ count
);
1143 data
+= indirect
->stride
/ sizeof(unsigned);
1146 pipe_buffer_unmap(&sctx
->b
.b
, transfer
);
1150 *count
= end
- begin
;
1152 *start
= *count
= 0;
1155 *start
= info
->start
;
1156 *count
= info
->count
;
1160 static void si_emit_all_states(struct si_context
*sctx
, const struct pipe_draw_info
*info
,
1161 unsigned skip_atom_mask
)
1163 /* Emit state atoms. */
1164 unsigned mask
= sctx
->dirty_atoms
& ~skip_atom_mask
;
1166 struct r600_atom
*atom
= sctx
->atoms
.array
[u_bit_scan(&mask
)];
1168 atom
->emit(&sctx
->b
, atom
);
1170 sctx
->dirty_atoms
&= skip_atom_mask
;
1173 mask
= sctx
->dirty_states
;
1175 unsigned i
= u_bit_scan(&mask
);
1176 struct si_pm4_state
*state
= sctx
->queued
.array
[i
];
1178 if (!state
|| sctx
->emitted
.array
[i
] == state
)
1181 si_pm4_emit(sctx
, state
);
1182 sctx
->emitted
.array
[i
] = state
;
1184 sctx
->dirty_states
= 0;
1186 /* Emit draw states. */
1187 unsigned num_patches
= 0;
1189 si_emit_rasterizer_prim_state(sctx
);
1190 if (sctx
->tes_shader
.cso
)
1191 si_emit_derived_tess_state(sctx
, info
, &num_patches
);
1192 si_emit_vs_state(sctx
, info
);
1193 si_emit_draw_registers(sctx
, info
, num_patches
);
1196 void si_draw_vbo(struct pipe_context
*ctx
, const struct pipe_draw_info
*info
)
1198 struct si_context
*sctx
= (struct si_context
*)ctx
;
1199 struct si_state_rasterizer
*rs
= sctx
->queued
.named
.rasterizer
;
1200 struct pipe_resource
*indexbuf
= info
->index
.resource
;
1201 unsigned dirty_tex_counter
;
1202 enum pipe_prim_type rast_prim
;
1203 unsigned index_size
= info
->index_size
;
1204 unsigned index_offset
= info
->indirect
? info
->start
* index_size
: 0;
1206 if (likely(!info
->indirect
)) {
1207 /* SI-CI treat instance_count==0 as instance_count==1. There is
1208 * no workaround for indirect draws, but we can at least skip
1211 if (unlikely(!info
->instance_count
))
1214 /* Handle count == 0. */
1215 if (unlikely(!info
->count
&&
1216 (index_size
|| !info
->count_from_stream_output
)))
1220 if (unlikely(!sctx
->vs_shader
.cso
)) {
1224 if (unlikely(!sctx
->ps_shader
.cso
&& (!rs
|| !rs
->rasterizer_discard
))) {
1228 if (unlikely(!!sctx
->tes_shader
.cso
!= (info
->mode
== PIPE_PRIM_PATCHES
))) {
1233 /* Recompute and re-emit the texture resource states if needed. */
1234 dirty_tex_counter
= p_atomic_read(&sctx
->b
.screen
->dirty_tex_counter
);
1235 if (unlikely(dirty_tex_counter
!= sctx
->b
.last_dirty_tex_counter
)) {
1236 sctx
->b
.last_dirty_tex_counter
= dirty_tex_counter
;
1237 sctx
->framebuffer
.dirty_cbufs
|=
1238 ((1 << sctx
->framebuffer
.state
.nr_cbufs
) - 1);
1239 sctx
->framebuffer
.dirty_zsbuf
= true;
1240 si_mark_atom_dirty(sctx
, &sctx
->framebuffer
.atom
);
1241 si_update_all_texture_descriptors(sctx
);
1244 si_decompress_graphics_textures(sctx
);
1246 /* Set the rasterization primitive type.
1248 * This must be done after si_decompress_textures, which can call
1249 * draw_vbo recursively, and before si_update_shaders, which uses
1250 * current_rast_prim for this draw_vbo call. */
1251 if (sctx
->gs_shader
.cso
)
1252 rast_prim
= sctx
->gs_shader
.cso
->gs_output_prim
;
1253 else if (sctx
->tes_shader
.cso
)
1254 rast_prim
= sctx
->tes_shader
.cso
->info
.properties
[TGSI_PROPERTY_TES_PRIM_MODE
];
1256 rast_prim
= info
->mode
;
1258 if (rast_prim
!= sctx
->current_rast_prim
) {
1259 sctx
->current_rast_prim
= rast_prim
;
1260 sctx
->do_update_shaders
= true;
1263 if (sctx
->tes_shader
.cso
&&
1264 (sctx
->b
.family
== CHIP_VEGA10
|| sctx
->b
.family
== CHIP_RAVEN
)) {
1265 /* Determine whether the LS VGPR fix should be applied.
1267 * It is only required when num input CPs > num output CPs,
1268 * which cannot happen with the fixed function TCS. We should
1269 * also update this bit when switching from TCS to fixed
1272 struct si_shader_selector
*tcs
= sctx
->tcs_shader
.cso
;
1275 info
->vertices_per_patch
>
1276 tcs
->info
.properties
[TGSI_PROPERTY_TCS_VERTICES_OUT
];
1278 if (ls_vgpr_fix
!= sctx
->ls_vgpr_fix
) {
1279 sctx
->ls_vgpr_fix
= ls_vgpr_fix
;
1280 sctx
->do_update_shaders
= true;
1284 if (sctx
->gs_shader
.cso
) {
1285 /* Determine whether the GS triangle strip adjacency fix should
1286 * be applied. Rotate every other triangle if
1287 * - triangle strips with adjacency are fed to the GS and
1288 * - primitive restart is disabled (the rotation doesn't help
1289 * when the restart occurs after an odd number of triangles).
1291 bool gs_tri_strip_adj_fix
=
1292 !sctx
->tes_shader
.cso
&&
1293 info
->mode
== PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY
&&
1294 !info
->primitive_restart
;
1296 if (gs_tri_strip_adj_fix
!= sctx
->gs_tri_strip_adj_fix
) {
1297 sctx
->gs_tri_strip_adj_fix
= gs_tri_strip_adj_fix
;
1298 sctx
->do_update_shaders
= true;
1302 if (sctx
->do_update_shaders
&& !si_update_shaders(sctx
))
1306 /* Translate or upload, if needed. */
1307 /* 8-bit indices are supported on VI. */
1308 if (sctx
->b
.chip_class
<= CIK
&& index_size
== 1) {
1309 unsigned start
, count
, start_offset
, size
, offset
;
1312 si_get_draw_start_count(sctx
, info
, &start
, &count
);
1313 start_offset
= start
* 2;
1317 u_upload_alloc(ctx
->stream_uploader
, start_offset
,
1319 si_optimal_tcc_alignment(sctx
, size
),
1320 &offset
, &indexbuf
, &ptr
);
1324 util_shorten_ubyte_elts_to_userptr(&sctx
->b
.b
, info
, 0, 0,
1325 index_offset
+ start
,
1328 /* info->start will be added by the drawing code */
1329 index_offset
= offset
- start_offset
;
1331 } else if (info
->has_user_indices
) {
1332 unsigned start_offset
;
1334 assert(!info
->indirect
);
1335 start_offset
= info
->start
* index_size
;
1338 u_upload_data(ctx
->stream_uploader
, start_offset
,
1339 info
->count
* index_size
,
1340 sctx
->screen
->b
.info
.tcc_cache_line_size
,
1341 (char*)info
->index
.user
+ start_offset
,
1342 &index_offset
, &indexbuf
);
1346 /* info->start will be added by the drawing code */
1347 index_offset
-= start_offset
;
1348 } else if (sctx
->b
.chip_class
<= CIK
&&
1349 r600_resource(indexbuf
)->TC_L2_dirty
) {
1350 /* VI reads index buffers through TC L2, so it doesn't
1352 sctx
->b
.flags
|= SI_CONTEXT_WRITEBACK_GLOBAL_L2
;
1353 r600_resource(indexbuf
)->TC_L2_dirty
= false;
1357 if (info
->indirect
) {
1358 struct pipe_draw_indirect_info
*indirect
= info
->indirect
;
1360 /* Add the buffer size for memory checking in need_cs_space. */
1361 r600_context_add_resource_size(ctx
, indirect
->buffer
);
1363 /* Indirect buffers use TC L2 on GFX9, but not older hw. */
1364 if (sctx
->b
.chip_class
<= VI
) {
1365 if (r600_resource(indirect
->buffer
)->TC_L2_dirty
) {
1366 sctx
->b
.flags
|= SI_CONTEXT_WRITEBACK_GLOBAL_L2
;
1367 r600_resource(indirect
->buffer
)->TC_L2_dirty
= false;
1370 if (indirect
->indirect_draw_count
&&
1371 r600_resource(indirect
->indirect_draw_count
)->TC_L2_dirty
) {
1372 sctx
->b
.flags
|= SI_CONTEXT_WRITEBACK_GLOBAL_L2
;
1373 r600_resource(indirect
->indirect_draw_count
)->TC_L2_dirty
= false;
1378 si_need_cs_space(sctx
);
1380 if (unlikely(sctx
->b
.log
))
1381 si_log_draw_state(sctx
, sctx
->b
.log
);
1383 /* Since we've called r600_context_add_resource_size for vertex buffers,
1384 * this must be called after si_need_cs_space, because we must let
1385 * need_cs_space flush before we add buffers to the buffer list.
1387 if (!si_upload_vertex_buffer_descriptors(sctx
))
1390 /* GFX9 scissor bug workaround. This must be done before VPORT scissor
1391 * registers are changed. There is also a more efficient but more
1392 * involved alternative workaround.
1394 if (sctx
->b
.chip_class
== GFX9
&&
1395 si_is_atom_dirty(sctx
, &sctx
->b
.scissors
.atom
)) {
1396 sctx
->b
.flags
|= SI_CONTEXT_PS_PARTIAL_FLUSH
;
1397 si_emit_cache_flush(sctx
);
1400 /* Use optimal packet order based on whether we need to sync the pipeline. */
1401 if (unlikely(sctx
->b
.flags
& (SI_CONTEXT_FLUSH_AND_INV_CB
|
1402 SI_CONTEXT_FLUSH_AND_INV_DB
|
1403 SI_CONTEXT_PS_PARTIAL_FLUSH
|
1404 SI_CONTEXT_CS_PARTIAL_FLUSH
))) {
1405 /* If we have to wait for idle, set all states first, so that all
1406 * SET packets are processed in parallel with previous draw calls.
1407 * Then upload descriptors, set shader pointers, and draw, and
1408 * prefetch at the end. This ensures that the time the CUs
1409 * are idle is very short. (there are only SET_SH packets between
1410 * the wait and the draw)
1412 struct r600_atom
*shader_pointers
= &sctx
->shader_pointers
.atom
;
1413 unsigned masked_atoms
= 1u << shader_pointers
->id
;
1415 if (unlikely(sctx
->b
.flags
& R600_CONTEXT_FLUSH_FOR_RENDER_COND
))
1416 masked_atoms
|= 1u << sctx
->b
.render_cond_atom
.id
;
1418 /* Emit all states except shader pointers and render condition. */
1419 si_emit_all_states(sctx
, info
, masked_atoms
);
1420 si_emit_cache_flush(sctx
);
1422 /* <-- CUs are idle here. */
1423 if (!si_upload_graphics_shader_descriptors(sctx
))
1426 /* Set shader pointers after descriptors are uploaded. */
1427 if (si_is_atom_dirty(sctx
, shader_pointers
))
1428 shader_pointers
->emit(&sctx
->b
, NULL
);
1429 if (si_is_atom_dirty(sctx
, &sctx
->b
.render_cond_atom
))
1430 sctx
->b
.render_cond_atom
.emit(&sctx
->b
, NULL
);
1431 sctx
->dirty_atoms
= 0;
1433 si_emit_draw_packets(sctx
, info
, indexbuf
, index_size
, index_offset
);
1434 /* <-- CUs are busy here. */
1436 /* Start prefetches after the draw has been started. Both will run
1437 * in parallel, but starting the draw first is more important.
1439 if (sctx
->b
.chip_class
>= CIK
&& sctx
->prefetch_L2_mask
)
1440 cik_emit_prefetch_L2(sctx
);
1442 /* If we don't wait for idle, start prefetches first, then set
1443 * states, and draw at the end.
1446 si_emit_cache_flush(sctx
);
1448 if (sctx
->b
.chip_class
>= CIK
&& sctx
->prefetch_L2_mask
)
1449 cik_emit_prefetch_L2(sctx
);
1451 if (!si_upload_graphics_shader_descriptors(sctx
))
1454 si_emit_all_states(sctx
, info
, 0);
1455 si_emit_draw_packets(sctx
, info
, indexbuf
, index_size
, index_offset
);
1458 if (unlikely(sctx
->current_saved_cs
))
1459 si_trace_emit(sctx
);
1461 /* Workaround for a VGT hang when streamout is enabled.
1462 * It must be done after drawing. */
1463 if ((sctx
->b
.family
== CHIP_HAWAII
||
1464 sctx
->b
.family
== CHIP_TONGA
||
1465 sctx
->b
.family
== CHIP_FIJI
) &&
1466 r600_get_strmout_en(&sctx
->b
)) {
1467 sctx
->b
.flags
|= SI_CONTEXT_VGT_STREAMOUT_SYNC
;
1470 if (unlikely(sctx
->decompression_enabled
)) {
1471 sctx
->b
.num_decompress_calls
++;
1473 sctx
->b
.num_draw_calls
++;
1474 if (sctx
->framebuffer
.state
.nr_cbufs
> 1)
1475 sctx
->b
.num_mrt_draw_calls
++;
1476 if (info
->primitive_restart
)
1477 sctx
->b
.num_prim_restart_calls
++;
1478 if (G_0286E8_WAVESIZE(sctx
->spi_tmpring_size
))
1479 sctx
->b
.num_spill_draw_calls
++;
1481 if (index_size
&& indexbuf
!= info
->index
.resource
)
1482 pipe_resource_reference(&indexbuf
, NULL
);
1485 void si_trace_emit(struct si_context
*sctx
)
1487 struct radeon_winsys_cs
*cs
= sctx
->b
.gfx
.cs
;
1488 uint64_t va
= sctx
->current_saved_cs
->trace_buf
->gpu_address
;
1489 uint32_t trace_id
= ++sctx
->current_saved_cs
->trace_id
;
1491 radeon_emit(cs
, PKT3(PKT3_WRITE_DATA
, 3, 0));
1492 radeon_emit(cs
, S_370_DST_SEL(V_370_MEMORY_SYNC
) |
1493 S_370_WR_CONFIRM(1) |
1494 S_370_ENGINE_SEL(V_370_ME
));
1495 radeon_emit(cs
, va
);
1496 radeon_emit(cs
, va
>> 32);
1497 radeon_emit(cs
, trace_id
);
1498 radeon_emit(cs
, PKT3(PKT3_NOP
, 0, 0));
1499 radeon_emit(cs
, AC_ENCODE_TRACE_POINT(trace_id
));
1502 u_log_flush(sctx
->b
.log
);