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_upload_mgr.h"
34 #include "util/u_prim.h"
38 static unsigned si_conv_pipe_prim(unsigned mode
)
40 static const unsigned prim_conv
[] = {
41 [PIPE_PRIM_POINTS
] = V_008958_DI_PT_POINTLIST
,
42 [PIPE_PRIM_LINES
] = V_008958_DI_PT_LINELIST
,
43 [PIPE_PRIM_LINE_LOOP
] = V_008958_DI_PT_LINELOOP
,
44 [PIPE_PRIM_LINE_STRIP
] = V_008958_DI_PT_LINESTRIP
,
45 [PIPE_PRIM_TRIANGLES
] = V_008958_DI_PT_TRILIST
,
46 [PIPE_PRIM_TRIANGLE_STRIP
] = V_008958_DI_PT_TRISTRIP
,
47 [PIPE_PRIM_TRIANGLE_FAN
] = V_008958_DI_PT_TRIFAN
,
48 [PIPE_PRIM_QUADS
] = V_008958_DI_PT_QUADLIST
,
49 [PIPE_PRIM_QUAD_STRIP
] = V_008958_DI_PT_QUADSTRIP
,
50 [PIPE_PRIM_POLYGON
] = V_008958_DI_PT_POLYGON
,
51 [PIPE_PRIM_LINES_ADJACENCY
] = V_008958_DI_PT_LINELIST_ADJ
,
52 [PIPE_PRIM_LINE_STRIP_ADJACENCY
] = V_008958_DI_PT_LINESTRIP_ADJ
,
53 [PIPE_PRIM_TRIANGLES_ADJACENCY
] = V_008958_DI_PT_TRILIST_ADJ
,
54 [PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY
] = V_008958_DI_PT_TRISTRIP_ADJ
,
55 [PIPE_PRIM_PATCHES
] = V_008958_DI_PT_PATCH
,
56 [R600_PRIM_RECTANGLE_LIST
] = V_008958_DI_PT_RECTLIST
58 assert(mode
< ARRAY_SIZE(prim_conv
));
59 return prim_conv
[mode
];
62 static unsigned si_conv_prim_to_gs_out(unsigned mode
)
64 static const int prim_conv
[] = {
65 [PIPE_PRIM_POINTS
] = V_028A6C_OUTPRIM_TYPE_POINTLIST
,
66 [PIPE_PRIM_LINES
] = V_028A6C_OUTPRIM_TYPE_LINESTRIP
,
67 [PIPE_PRIM_LINE_LOOP
] = V_028A6C_OUTPRIM_TYPE_LINESTRIP
,
68 [PIPE_PRIM_LINE_STRIP
] = V_028A6C_OUTPRIM_TYPE_LINESTRIP
,
69 [PIPE_PRIM_TRIANGLES
] = V_028A6C_OUTPRIM_TYPE_TRISTRIP
,
70 [PIPE_PRIM_TRIANGLE_STRIP
] = V_028A6C_OUTPRIM_TYPE_TRISTRIP
,
71 [PIPE_PRIM_TRIANGLE_FAN
] = V_028A6C_OUTPRIM_TYPE_TRISTRIP
,
72 [PIPE_PRIM_QUADS
] = V_028A6C_OUTPRIM_TYPE_TRISTRIP
,
73 [PIPE_PRIM_QUAD_STRIP
] = V_028A6C_OUTPRIM_TYPE_TRISTRIP
,
74 [PIPE_PRIM_POLYGON
] = V_028A6C_OUTPRIM_TYPE_TRISTRIP
,
75 [PIPE_PRIM_LINES_ADJACENCY
] = V_028A6C_OUTPRIM_TYPE_LINESTRIP
,
76 [PIPE_PRIM_LINE_STRIP_ADJACENCY
] = V_028A6C_OUTPRIM_TYPE_LINESTRIP
,
77 [PIPE_PRIM_TRIANGLES_ADJACENCY
] = V_028A6C_OUTPRIM_TYPE_TRISTRIP
,
78 [PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY
] = V_028A6C_OUTPRIM_TYPE_TRISTRIP
,
79 [PIPE_PRIM_PATCHES
] = V_028A6C_OUTPRIM_TYPE_POINTLIST
,
80 [R600_PRIM_RECTANGLE_LIST
] = V_028A6C_OUTPRIM_TYPE_TRISTRIP
82 assert(mode
< ARRAY_SIZE(prim_conv
));
84 return prim_conv
[mode
];
88 * This calculates the LDS size for tessellation shaders (VS, TCS, TES).
89 * LS.LDS_SIZE is shared by all 3 shader stages.
91 * The information about LDS and other non-compile-time parameters is then
92 * written to userdata SGPRs.
94 static void si_emit_derived_tess_state(struct si_context
*sctx
,
95 const struct pipe_draw_info
*info
,
96 unsigned *num_patches
)
98 struct radeon_winsys_cs
*cs
= sctx
->b
.gfx
.cs
;
99 struct si_shader
*ls_current
;
100 struct si_shader_selector
*ls
;
101 /* The TES pointer will only be used for sctx->last_tcs.
102 * It would be wrong to think that TCS = TES. */
103 struct si_shader_selector
*tcs
=
104 sctx
->tcs_shader
.cso
? sctx
->tcs_shader
.cso
: sctx
->tes_shader
.cso
;
105 unsigned tes_sh_base
= sctx
->shader_userdata
.sh_base
[PIPE_SHADER_TESS_EVAL
];
106 unsigned num_tcs_input_cp
= info
->vertices_per_patch
;
107 unsigned num_tcs_output_cp
, num_tcs_inputs
, num_tcs_outputs
;
108 unsigned num_tcs_patch_outputs
;
109 unsigned input_vertex_size
, output_vertex_size
, pervertex_output_patch_size
;
110 unsigned input_patch_size
, output_patch_size
, output_patch0_offset
;
111 unsigned perpatch_output_offset
, lds_size
;
112 unsigned tcs_in_layout
, tcs_out_layout
, tcs_out_offsets
;
113 unsigned offchip_layout
, hardware_lds_size
, ls_hs_config
;
115 /* Since GFX9 has merged LS-HS in the TCS state, set LS = TCS. */
116 if (sctx
->b
.chip_class
>= GFX9
) {
117 if (sctx
->tcs_shader
.cso
)
118 ls_current
= sctx
->tcs_shader
.current
;
120 ls_current
= sctx
->fixed_func_tcs_shader
.current
;
122 ls
= ls_current
->key
.part
.tcs
.ls
;
124 ls_current
= sctx
->vs_shader
.current
;
125 ls
= sctx
->vs_shader
.cso
;
128 if (sctx
->last_ls
== ls_current
&&
129 sctx
->last_tcs
== tcs
&&
130 sctx
->last_tes_sh_base
== tes_sh_base
&&
131 sctx
->last_num_tcs_input_cp
== num_tcs_input_cp
) {
132 *num_patches
= sctx
->last_num_patches
;
136 sctx
->last_ls
= ls_current
;
137 sctx
->last_tcs
= tcs
;
138 sctx
->last_tes_sh_base
= tes_sh_base
;
139 sctx
->last_num_tcs_input_cp
= num_tcs_input_cp
;
141 /* This calculates how shader inputs and outputs among VS, TCS, and TES
142 * are laid out in LDS. */
143 num_tcs_inputs
= util_last_bit64(ls
->outputs_written
);
145 if (sctx
->tcs_shader
.cso
) {
146 num_tcs_outputs
= util_last_bit64(tcs
->outputs_written
);
147 num_tcs_output_cp
= tcs
->info
.properties
[TGSI_PROPERTY_TCS_VERTICES_OUT
];
148 num_tcs_patch_outputs
= util_last_bit64(tcs
->patch_outputs_written
);
150 /* No TCS. Route varyings from LS to TES. */
151 num_tcs_outputs
= num_tcs_inputs
;
152 num_tcs_output_cp
= num_tcs_input_cp
;
153 num_tcs_patch_outputs
= 2; /* TESSINNER + TESSOUTER */
156 input_vertex_size
= num_tcs_inputs
* 16;
157 output_vertex_size
= num_tcs_outputs
* 16;
159 input_patch_size
= num_tcs_input_cp
* input_vertex_size
;
161 pervertex_output_patch_size
= num_tcs_output_cp
* output_vertex_size
;
162 output_patch_size
= pervertex_output_patch_size
+ num_tcs_patch_outputs
* 16;
164 /* Ensure that we only need one wave per SIMD so we don't need to check
165 * resource usage. Also ensures that the number of tcs in and out
166 * vertices per threadgroup are at most 256.
168 *num_patches
= 64 / MAX2(num_tcs_input_cp
, num_tcs_output_cp
) * 4;
170 /* Make sure that the data fits in LDS. This assumes the shaders only
171 * use LDS for the inputs and outputs.
173 hardware_lds_size
= sctx
->b
.chip_class
>= CIK
? 65536 : 32768;
174 *num_patches
= MIN2(*num_patches
, hardware_lds_size
/ (input_patch_size
+
177 /* Make sure the output data fits in the offchip buffer */
178 *num_patches
= MIN2(*num_patches
,
179 (sctx
->screen
->tess_offchip_block_dw_size
* 4) /
182 /* Not necessary for correctness, but improves performance. The
183 * specific value is taken from the proprietary driver.
185 *num_patches
= MIN2(*num_patches
, 40);
187 if (sctx
->b
.chip_class
== SI
) {
188 /* SI bug workaround, related to power management. Limit LS-HS
189 * threadgroups to only one wave.
191 unsigned one_wave
= 64 / MAX2(num_tcs_input_cp
, num_tcs_output_cp
);
192 *num_patches
= MIN2(*num_patches
, one_wave
);
194 if (sctx
->screen
->b
.info
.max_se
== 1) {
195 /* The VGT HS block increments the patch ID unconditionally
196 * within a single threadgroup. This results in incorrect
197 * patch IDs when instanced draws are used.
199 * The intended solution is to restrict threadgroups to
200 * a single instance by setting SWITCH_ON_EOI, which
201 * should cause IA to split instances up. However, this
202 * doesn't work correctly on SI when there is no other
209 sctx
->last_num_patches
= *num_patches
;
211 output_patch0_offset
= input_patch_size
* *num_patches
;
212 perpatch_output_offset
= output_patch0_offset
+ pervertex_output_patch_size
;
214 /* Compute userdata SGPRs. */
215 assert(((input_vertex_size
/ 4) & ~0xff) == 0);
216 assert(((output_vertex_size
/ 4) & ~0xff) == 0);
217 assert(((input_patch_size
/ 4) & ~0x1fff) == 0);
218 assert(((output_patch_size
/ 4) & ~0x1fff) == 0);
219 assert(((output_patch0_offset
/ 16) & ~0xffff) == 0);
220 assert(((perpatch_output_offset
/ 16) & ~0xffff) == 0);
221 assert(num_tcs_input_cp
<= 32);
222 assert(num_tcs_output_cp
<= 32);
224 tcs_in_layout
= S_VS_STATE_LS_OUT_PATCH_SIZE(input_patch_size
/ 4) |
225 S_VS_STATE_LS_OUT_VERTEX_SIZE(input_vertex_size
/ 4);
226 tcs_out_layout
= (output_patch_size
/ 4) |
227 ((output_vertex_size
/ 4) << 13);
228 tcs_out_offsets
= (output_patch0_offset
/ 16) |
229 ((perpatch_output_offset
/ 16) << 16);
230 offchip_layout
= *num_patches
|
231 (num_tcs_output_cp
<< 6) |
232 (pervertex_output_patch_size
* *num_patches
<< 12);
234 /* Compute the LDS size. */
235 lds_size
= output_patch0_offset
+ output_patch_size
* *num_patches
;
237 if (sctx
->b
.chip_class
>= CIK
) {
238 assert(lds_size
<= 65536);
239 lds_size
= align(lds_size
, 512) / 512;
241 assert(lds_size
<= 32768);
242 lds_size
= align(lds_size
, 256) / 256;
245 /* Set SI_SGPR_VS_STATE_BITS. */
246 sctx
->current_vs_state
&= C_VS_STATE_LS_OUT_PATCH_SIZE
&
247 C_VS_STATE_LS_OUT_VERTEX_SIZE
;
248 sctx
->current_vs_state
|= tcs_in_layout
;
250 if (sctx
->b
.chip_class
>= GFX9
) {
251 unsigned hs_rsrc2
= ls_current
->config
.rsrc2
|
252 S_00B42C_LDS_SIZE(lds_size
);
254 radeon_set_sh_reg(cs
, R_00B42C_SPI_SHADER_PGM_RSRC2_HS
, hs_rsrc2
);
256 /* Set userdata SGPRs for merged LS-HS. */
257 radeon_set_sh_reg_seq(cs
,
258 R_00B430_SPI_SHADER_USER_DATA_LS_0
+
259 GFX9_SGPR_TCS_OFFCHIP_LAYOUT
* 4, 3);
260 radeon_emit(cs
, offchip_layout
);
261 radeon_emit(cs
, tcs_out_offsets
);
262 radeon_emit(cs
, tcs_out_layout
| (num_tcs_input_cp
<< 26));
264 unsigned ls_rsrc2
= ls_current
->config
.rsrc2
;
266 si_multiwave_lds_size_workaround(sctx
->screen
, &lds_size
);
267 ls_rsrc2
|= S_00B52C_LDS_SIZE(lds_size
);
269 /* Due to a hw bug, RSRC2_LS must be written twice with another
270 * LS register written in between. */
271 if (sctx
->b
.chip_class
== CIK
&& sctx
->b
.family
!= CHIP_HAWAII
)
272 radeon_set_sh_reg(cs
, R_00B52C_SPI_SHADER_PGM_RSRC2_LS
, ls_rsrc2
);
273 radeon_set_sh_reg_seq(cs
, R_00B528_SPI_SHADER_PGM_RSRC1_LS
, 2);
274 radeon_emit(cs
, ls_current
->config
.rsrc1
);
275 radeon_emit(cs
, ls_rsrc2
);
277 /* Set userdata SGPRs for TCS. */
278 radeon_set_sh_reg_seq(cs
,
279 R_00B430_SPI_SHADER_USER_DATA_HS_0
+ GFX6_SGPR_TCS_OFFCHIP_LAYOUT
* 4, 4);
280 radeon_emit(cs
, offchip_layout
);
281 radeon_emit(cs
, tcs_out_offsets
);
282 radeon_emit(cs
, tcs_out_layout
| (num_tcs_input_cp
<< 26));
283 radeon_emit(cs
, tcs_in_layout
);
286 /* Set userdata SGPRs for TES. */
287 radeon_set_sh_reg_seq(cs
, tes_sh_base
+ SI_SGPR_TES_OFFCHIP_LAYOUT
* 4, 2);
288 radeon_emit(cs
, offchip_layout
);
289 radeon_emit(cs
, r600_resource(sctx
->tess_offchip_ring
)->gpu_address
>> 16);
291 ls_hs_config
= S_028B58_NUM_PATCHES(*num_patches
) |
292 S_028B58_HS_NUM_INPUT_CP(num_tcs_input_cp
) |
293 S_028B58_HS_NUM_OUTPUT_CP(num_tcs_output_cp
);
295 if (sctx
->b
.chip_class
>= CIK
)
296 radeon_set_context_reg_idx(cs
, R_028B58_VGT_LS_HS_CONFIG
, 2,
299 radeon_set_context_reg(cs
, R_028B58_VGT_LS_HS_CONFIG
,
303 static unsigned si_num_prims_for_vertices(const struct pipe_draw_info
*info
)
305 switch (info
->mode
) {
306 case PIPE_PRIM_PATCHES
:
307 return info
->count
/ info
->vertices_per_patch
;
308 case R600_PRIM_RECTANGLE_LIST
:
309 return info
->count
/ 3;
311 return u_prims_for_vertices(info
->mode
, info
->count
);
316 si_get_init_multi_vgt_param(struct si_screen
*sscreen
,
317 union si_vgt_param_key
*key
)
319 STATIC_ASSERT(sizeof(union si_vgt_param_key
) == 4);
320 unsigned max_primgroup_in_wave
= 2;
322 /* SWITCH_ON_EOP(0) is always preferable. */
323 bool wd_switch_on_eop
= false;
324 bool ia_switch_on_eop
= false;
325 bool ia_switch_on_eoi
= false;
326 bool partial_vs_wave
= false;
327 bool partial_es_wave
= false;
329 if (key
->u
.uses_tess
) {
330 /* SWITCH_ON_EOI must be set if PrimID is used. */
331 if (key
->u
.tcs_tes_uses_prim_id
)
332 ia_switch_on_eoi
= true;
334 /* Bug with tessellation and GS on Bonaire and older 2 SE chips. */
335 if ((sscreen
->b
.family
== CHIP_TAHITI
||
336 sscreen
->b
.family
== CHIP_PITCAIRN
||
337 sscreen
->b
.family
== CHIP_BONAIRE
) &&
339 partial_vs_wave
= true;
341 /* Needed for 028B6C_DISTRIBUTION_MODE != 0 */
342 if (sscreen
->has_distributed_tess
) {
343 if (key
->u
.uses_gs
) {
344 if (sscreen
->b
.chip_class
<= VI
)
345 partial_es_wave
= true;
347 /* GPU hang workaround. */
348 if (sscreen
->b
.family
== CHIP_TONGA
||
349 sscreen
->b
.family
== CHIP_FIJI
||
350 sscreen
->b
.family
== CHIP_POLARIS10
||
351 sscreen
->b
.family
== CHIP_POLARIS11
||
352 sscreen
->b
.family
== CHIP_POLARIS12
)
353 partial_vs_wave
= true;
355 partial_vs_wave
= true;
360 /* This is a hardware requirement. */
361 if (key
->u
.line_stipple_enabled
||
362 (sscreen
->b
.debug_flags
& DBG_SWITCH_ON_EOP
)) {
363 ia_switch_on_eop
= true;
364 wd_switch_on_eop
= true;
367 if (sscreen
->b
.chip_class
>= CIK
) {
368 /* WD_SWITCH_ON_EOP has no effect on GPUs with less than
369 * 4 shader engines. Set 1 to pass the assertion below.
370 * The other cases are hardware requirements.
372 * Polaris supports primitive restart with WD_SWITCH_ON_EOP=0
373 * for points, line strips, and tri strips.
375 if (sscreen
->b
.info
.max_se
< 4 ||
376 key
->u
.prim
== PIPE_PRIM_POLYGON
||
377 key
->u
.prim
== PIPE_PRIM_LINE_LOOP
||
378 key
->u
.prim
== PIPE_PRIM_TRIANGLE_FAN
||
379 key
->u
.prim
== PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY
||
380 (key
->u
.primitive_restart
&&
381 (sscreen
->b
.family
< CHIP_POLARIS10
||
382 (key
->u
.prim
!= PIPE_PRIM_POINTS
&&
383 key
->u
.prim
!= PIPE_PRIM_LINE_STRIP
&&
384 key
->u
.prim
!= PIPE_PRIM_TRIANGLE_STRIP
))) ||
385 key
->u
.count_from_stream_output
)
386 wd_switch_on_eop
= true;
388 /* Hawaii hangs if instancing is enabled and WD_SWITCH_ON_EOP is 0.
389 * We don't know that for indirect drawing, so treat it as
390 * always problematic. */
391 if (sscreen
->b
.family
== CHIP_HAWAII
&&
392 key
->u
.uses_instancing
)
393 wd_switch_on_eop
= true;
395 /* Performance recommendation for 4 SE Gfx7-8 parts if
396 * instances are smaller than a primgroup.
397 * Assume indirect draws always use small instances.
398 * This is needed for good VS wave utilization.
400 if (sscreen
->b
.chip_class
<= VI
&&
401 sscreen
->b
.info
.max_se
== 4 &&
402 key
->u
.multi_instances_smaller_than_primgroup
)
403 wd_switch_on_eop
= true;
405 /* Required on CIK and later. */
406 if (sscreen
->b
.info
.max_se
> 2 && !wd_switch_on_eop
)
407 ia_switch_on_eoi
= true;
409 /* Required by Hawaii and, for some special cases, by VI. */
410 if (ia_switch_on_eoi
&&
411 (sscreen
->b
.family
== CHIP_HAWAII
||
412 (sscreen
->b
.chip_class
== VI
&&
413 (key
->u
.uses_gs
|| max_primgroup_in_wave
!= 2))))
414 partial_vs_wave
= true;
416 /* Instancing bug on Bonaire. */
417 if (sscreen
->b
.family
== CHIP_BONAIRE
&& ia_switch_on_eoi
&&
418 key
->u
.uses_instancing
)
419 partial_vs_wave
= true;
421 /* If the WD switch is false, the IA switch must be false too. */
422 assert(wd_switch_on_eop
|| !ia_switch_on_eop
);
425 /* If SWITCH_ON_EOI is set, PARTIAL_ES_WAVE must be set too. */
426 if (sscreen
->b
.chip_class
<= VI
&& ia_switch_on_eoi
)
427 partial_es_wave
= true;
429 return S_028AA8_SWITCH_ON_EOP(ia_switch_on_eop
) |
430 S_028AA8_SWITCH_ON_EOI(ia_switch_on_eoi
) |
431 S_028AA8_PARTIAL_VS_WAVE_ON(partial_vs_wave
) |
432 S_028AA8_PARTIAL_ES_WAVE_ON(partial_es_wave
) |
433 S_028AA8_WD_SWITCH_ON_EOP(sscreen
->b
.chip_class
>= CIK
? wd_switch_on_eop
: 0) |
434 /* The following field was moved to VGT_SHADER_STAGES_EN in GFX9. */
435 S_028AA8_MAX_PRIMGRP_IN_WAVE(sscreen
->b
.chip_class
== VI
?
436 max_primgroup_in_wave
: 0) |
437 S_030960_EN_INST_OPT_BASIC(sscreen
->b
.chip_class
>= GFX9
) |
438 S_030960_EN_INST_OPT_ADV(sscreen
->b
.chip_class
>= GFX9
);
441 void si_init_ia_multi_vgt_param_table(struct si_context
*sctx
)
443 for (int prim
= 0; prim
<= R600_PRIM_RECTANGLE_LIST
; prim
++)
444 for (int uses_instancing
= 0; uses_instancing
< 2; uses_instancing
++)
445 for (int multi_instances
= 0; multi_instances
< 2; multi_instances
++)
446 for (int primitive_restart
= 0; primitive_restart
< 2; primitive_restart
++)
447 for (int count_from_so
= 0; count_from_so
< 2; count_from_so
++)
448 for (int line_stipple
= 0; line_stipple
< 2; line_stipple
++)
449 for (int uses_tess
= 0; uses_tess
< 2; uses_tess
++)
450 for (int tess_uses_primid
= 0; tess_uses_primid
< 2; tess_uses_primid
++)
451 for (int uses_gs
= 0; uses_gs
< 2; uses_gs
++) {
452 union si_vgt_param_key key
;
456 key
.u
.uses_instancing
= uses_instancing
;
457 key
.u
.multi_instances_smaller_than_primgroup
= multi_instances
;
458 key
.u
.primitive_restart
= primitive_restart
;
459 key
.u
.count_from_stream_output
= count_from_so
;
460 key
.u
.line_stipple_enabled
= line_stipple
;
461 key
.u
.uses_tess
= uses_tess
;
462 key
.u
.tcs_tes_uses_prim_id
= tess_uses_primid
;
463 key
.u
.uses_gs
= uses_gs
;
465 sctx
->ia_multi_vgt_param
[key
.index
] =
466 si_get_init_multi_vgt_param(sctx
->screen
, &key
);
470 static unsigned si_get_ia_multi_vgt_param(struct si_context
*sctx
,
471 const struct pipe_draw_info
*info
,
472 unsigned num_patches
)
474 union si_vgt_param_key key
= sctx
->ia_multi_vgt_param_key
;
475 unsigned primgroup_size
;
476 unsigned ia_multi_vgt_param
;
478 if (sctx
->tes_shader
.cso
) {
479 primgroup_size
= num_patches
; /* must be a multiple of NUM_PATCHES */
480 } else if (sctx
->gs_shader
.cso
) {
481 primgroup_size
= 64; /* recommended with a GS */
483 primgroup_size
= 128; /* recommended without a GS and tess */
486 key
.u
.prim
= info
->mode
;
487 key
.u
.uses_instancing
= info
->indirect
|| info
->instance_count
> 1;
488 key
.u
.multi_instances_smaller_than_primgroup
=
490 (info
->instance_count
> 1 &&
491 (info
->count_from_stream_output
||
492 si_num_prims_for_vertices(info
) < primgroup_size
));
493 key
.u
.primitive_restart
= info
->primitive_restart
;
494 key
.u
.count_from_stream_output
= info
->count_from_stream_output
!= NULL
;
496 ia_multi_vgt_param
= sctx
->ia_multi_vgt_param
[key
.index
] |
497 S_028AA8_PRIMGROUP_SIZE(primgroup_size
- 1);
499 if (sctx
->gs_shader
.cso
) {
500 /* GS requirement. */
501 if (sctx
->b
.chip_class
<= VI
&&
502 SI_GS_PER_ES
/ primgroup_size
>= sctx
->screen
->gs_table_depth
- 3)
503 ia_multi_vgt_param
|= S_028AA8_PARTIAL_ES_WAVE_ON(1);
505 /* GS hw bug with single-primitive instances and SWITCH_ON_EOI.
506 * The hw doc says all multi-SE chips are affected, but Vulkan
507 * only applies it to Hawaii. Do what Vulkan does.
509 if (sctx
->b
.family
== CHIP_HAWAII
&&
510 G_028AA8_SWITCH_ON_EOI(ia_multi_vgt_param
) &&
512 (info
->instance_count
> 1 &&
513 (info
->count_from_stream_output
||
514 si_num_prims_for_vertices(info
) <= 1))))
515 sctx
->b
.flags
|= SI_CONTEXT_VGT_FLUSH
;
518 return ia_multi_vgt_param
;
521 /* rast_prim is the primitive type after GS. */
522 static void si_emit_rasterizer_prim_state(struct si_context
*sctx
)
524 struct radeon_winsys_cs
*cs
= sctx
->b
.gfx
.cs
;
525 enum pipe_prim_type rast_prim
= sctx
->current_rast_prim
;
526 struct si_state_rasterizer
*rs
= sctx
->emitted
.named
.rasterizer
;
528 /* Skip this if not rendering lines. */
529 if (rast_prim
!= PIPE_PRIM_LINES
&&
530 rast_prim
!= PIPE_PRIM_LINE_LOOP
&&
531 rast_prim
!= PIPE_PRIM_LINE_STRIP
&&
532 rast_prim
!= PIPE_PRIM_LINES_ADJACENCY
&&
533 rast_prim
!= PIPE_PRIM_LINE_STRIP_ADJACENCY
)
536 if (rast_prim
== sctx
->last_rast_prim
&&
537 rs
->pa_sc_line_stipple
== sctx
->last_sc_line_stipple
)
540 /* For lines, reset the stipple pattern at each primitive. Otherwise,
541 * reset the stipple pattern at each packet (line strips, line loops).
543 radeon_set_context_reg(cs
, R_028A0C_PA_SC_LINE_STIPPLE
,
544 rs
->pa_sc_line_stipple
|
545 S_028A0C_AUTO_RESET_CNTL(rast_prim
== PIPE_PRIM_LINES
? 1 : 2));
547 sctx
->last_rast_prim
= rast_prim
;
548 sctx
->last_sc_line_stipple
= rs
->pa_sc_line_stipple
;
551 static void si_emit_vs_state(struct si_context
*sctx
,
552 const struct pipe_draw_info
*info
)
554 sctx
->current_vs_state
&= C_VS_STATE_INDEXED
;
555 sctx
->current_vs_state
|= S_VS_STATE_INDEXED(!!info
->indexed
);
557 if (sctx
->current_vs_state
!= sctx
->last_vs_state
) {
558 struct radeon_winsys_cs
*cs
= sctx
->b
.gfx
.cs
;
560 radeon_set_sh_reg(cs
,
561 sctx
->shader_userdata
.sh_base
[PIPE_SHADER_VERTEX
] +
562 SI_SGPR_VS_STATE_BITS
* 4,
563 sctx
->current_vs_state
);
565 sctx
->last_vs_state
= sctx
->current_vs_state
;
569 static void si_emit_draw_registers(struct si_context
*sctx
,
570 const struct pipe_draw_info
*info
,
571 unsigned num_patches
)
573 struct radeon_winsys_cs
*cs
= sctx
->b
.gfx
.cs
;
574 unsigned prim
= si_conv_pipe_prim(info
->mode
);
575 unsigned gs_out_prim
= si_conv_prim_to_gs_out(sctx
->current_rast_prim
);
576 unsigned ia_multi_vgt_param
;
578 ia_multi_vgt_param
= si_get_ia_multi_vgt_param(sctx
, info
, num_patches
);
581 if (ia_multi_vgt_param
!= sctx
->last_multi_vgt_param
) {
582 if (sctx
->b
.chip_class
>= GFX9
)
583 radeon_set_uconfig_reg_idx(cs
, R_030960_IA_MULTI_VGT_PARAM
, 4, ia_multi_vgt_param
);
584 else if (sctx
->b
.chip_class
>= CIK
)
585 radeon_set_context_reg_idx(cs
, R_028AA8_IA_MULTI_VGT_PARAM
, 1, ia_multi_vgt_param
);
587 radeon_set_context_reg(cs
, R_028AA8_IA_MULTI_VGT_PARAM
, ia_multi_vgt_param
);
589 sctx
->last_multi_vgt_param
= ia_multi_vgt_param
;
591 if (prim
!= sctx
->last_prim
) {
592 if (sctx
->b
.chip_class
>= CIK
)
593 radeon_set_uconfig_reg_idx(cs
, R_030908_VGT_PRIMITIVE_TYPE
, 1, prim
);
595 radeon_set_config_reg(cs
, R_008958_VGT_PRIMITIVE_TYPE
, prim
);
597 sctx
->last_prim
= prim
;
600 if (gs_out_prim
!= sctx
->last_gs_out_prim
) {
601 radeon_set_context_reg(cs
, R_028A6C_VGT_GS_OUT_PRIM_TYPE
, gs_out_prim
);
602 sctx
->last_gs_out_prim
= gs_out_prim
;
605 /* Primitive restart. */
606 if (info
->primitive_restart
!= sctx
->last_primitive_restart_en
) {
607 if (sctx
->b
.chip_class
>= GFX9
)
608 radeon_set_uconfig_reg(cs
, R_03092C_VGT_MULTI_PRIM_IB_RESET_EN
,
609 info
->primitive_restart
);
611 radeon_set_context_reg(cs
, R_028A94_VGT_MULTI_PRIM_IB_RESET_EN
,
612 info
->primitive_restart
);
614 sctx
->last_primitive_restart_en
= info
->primitive_restart
;
617 if (info
->primitive_restart
&&
618 (info
->restart_index
!= sctx
->last_restart_index
||
619 sctx
->last_restart_index
== SI_RESTART_INDEX_UNKNOWN
)) {
620 radeon_set_context_reg(cs
, R_02840C_VGT_MULTI_PRIM_IB_RESET_INDX
,
621 info
->restart_index
);
622 sctx
->last_restart_index
= info
->restart_index
;
626 static void si_emit_draw_packets(struct si_context
*sctx
,
627 const struct pipe_draw_info
*info
,
628 const struct pipe_index_buffer
*ib
)
630 struct pipe_draw_indirect_info
*indirect
= info
->indirect
;
631 struct radeon_winsys_cs
*cs
= sctx
->b
.gfx
.cs
;
632 unsigned sh_base_reg
= sctx
->shader_userdata
.sh_base
[PIPE_SHADER_VERTEX
];
633 bool render_cond_bit
= sctx
->b
.render_cond
&& !sctx
->b
.render_cond_force_off
;
634 uint32_t index_max_size
= 0;
635 uint64_t index_va
= 0;
637 if (info
->count_from_stream_output
) {
638 struct r600_so_target
*t
=
639 (struct r600_so_target
*)info
->count_from_stream_output
;
640 uint64_t va
= t
->buf_filled_size
->gpu_address
+
641 t
->buf_filled_size_offset
;
643 radeon_set_context_reg(cs
, R_028B30_VGT_STRMOUT_DRAW_OPAQUE_VERTEX_STRIDE
,
646 radeon_emit(cs
, PKT3(PKT3_COPY_DATA
, 4, 0));
647 radeon_emit(cs
, COPY_DATA_SRC_SEL(COPY_DATA_MEM
) |
648 COPY_DATA_DST_SEL(COPY_DATA_REG
) |
649 COPY_DATA_WR_CONFIRM
);
650 radeon_emit(cs
, va
); /* src address lo */
651 radeon_emit(cs
, va
>> 32); /* src address hi */
652 radeon_emit(cs
, R_028B2C_VGT_STRMOUT_DRAW_OPAQUE_BUFFER_FILLED_SIZE
>> 2);
653 radeon_emit(cs
, 0); /* unused */
655 radeon_add_to_buffer_list(&sctx
->b
, &sctx
->b
.gfx
,
656 t
->buf_filled_size
, RADEON_USAGE_READ
,
657 RADEON_PRIO_SO_FILLED_SIZE
);
662 if (ib
->index_size
!= sctx
->last_index_size
) {
666 switch (ib
->index_size
) {
668 index_type
= V_028A7C_VGT_INDEX_8
;
671 index_type
= V_028A7C_VGT_INDEX_16
|
672 (SI_BIG_ENDIAN
&& sctx
->b
.chip_class
<= CIK
?
673 V_028A7C_VGT_DMA_SWAP_16_BIT
: 0);
676 index_type
= V_028A7C_VGT_INDEX_32
|
677 (SI_BIG_ENDIAN
&& sctx
->b
.chip_class
<= CIK
?
678 V_028A7C_VGT_DMA_SWAP_32_BIT
: 0);
681 assert(!"unreachable");
685 if (sctx
->b
.chip_class
>= GFX9
) {
686 radeon_set_uconfig_reg_idx(cs
, R_03090C_VGT_INDEX_TYPE
,
689 radeon_emit(cs
, PKT3(PKT3_INDEX_TYPE
, 0, 0));
690 radeon_emit(cs
, index_type
);
693 sctx
->last_index_size
= ib
->index_size
;
696 index_max_size
= (ib
->buffer
->width0
- ib
->offset
) /
698 index_va
= r600_resource(ib
->buffer
)->gpu_address
+ ib
->offset
;
700 radeon_add_to_buffer_list(&sctx
->b
, &sctx
->b
.gfx
,
701 (struct r600_resource
*)ib
->buffer
,
702 RADEON_USAGE_READ
, RADEON_PRIO_INDEX_BUFFER
);
704 /* On CI and later, non-indexed draws overwrite VGT_INDEX_TYPE,
705 * so the state must be re-emitted before the next indexed draw.
707 if (sctx
->b
.chip_class
>= CIK
)
708 sctx
->last_index_size
= -1;
712 uint64_t indirect_va
= r600_resource(indirect
->buffer
)->gpu_address
;
714 assert(indirect_va
% 8 == 0);
716 si_invalidate_draw_sh_constants(sctx
);
718 radeon_emit(cs
, PKT3(PKT3_SET_BASE
, 2, 0));
720 radeon_emit(cs
, indirect_va
);
721 radeon_emit(cs
, indirect_va
>> 32);
723 radeon_add_to_buffer_list(&sctx
->b
, &sctx
->b
.gfx
,
724 (struct r600_resource
*)indirect
->buffer
,
725 RADEON_USAGE_READ
, RADEON_PRIO_DRAW_INDIRECT
);
727 unsigned di_src_sel
= info
->indexed
? V_0287F0_DI_SRC_SEL_DMA
728 : V_0287F0_DI_SRC_SEL_AUTO_INDEX
;
730 assert(indirect
->offset
% 4 == 0);
733 radeon_emit(cs
, PKT3(PKT3_INDEX_BASE
, 1, 0));
734 radeon_emit(cs
, index_va
);
735 radeon_emit(cs
, index_va
>> 32);
737 radeon_emit(cs
, PKT3(PKT3_INDEX_BUFFER_SIZE
, 0, 0));
738 radeon_emit(cs
, index_max_size
);
741 if (!sctx
->screen
->has_draw_indirect_multi
) {
742 radeon_emit(cs
, PKT3(info
->indexed
? PKT3_DRAW_INDEX_INDIRECT
743 : PKT3_DRAW_INDIRECT
,
744 3, render_cond_bit
));
745 radeon_emit(cs
, indirect
->offset
);
746 radeon_emit(cs
, (sh_base_reg
+ SI_SGPR_BASE_VERTEX
* 4 - SI_SH_REG_OFFSET
) >> 2);
747 radeon_emit(cs
, (sh_base_reg
+ SI_SGPR_START_INSTANCE
* 4 - SI_SH_REG_OFFSET
) >> 2);
748 radeon_emit(cs
, di_src_sel
);
750 uint64_t count_va
= 0;
752 if (indirect
->indirect_draw_count
) {
753 struct r600_resource
*params_buf
=
754 (struct r600_resource
*)indirect
->indirect_draw_count
;
756 radeon_add_to_buffer_list(
757 &sctx
->b
, &sctx
->b
.gfx
, params_buf
,
758 RADEON_USAGE_READ
, RADEON_PRIO_DRAW_INDIRECT
);
760 count_va
= params_buf
->gpu_address
+ indirect
->indirect_draw_count_offset
;
763 radeon_emit(cs
, PKT3(info
->indexed
? PKT3_DRAW_INDEX_INDIRECT_MULTI
:
764 PKT3_DRAW_INDIRECT_MULTI
,
765 8, render_cond_bit
));
766 radeon_emit(cs
, indirect
->offset
);
767 radeon_emit(cs
, (sh_base_reg
+ SI_SGPR_BASE_VERTEX
* 4 - SI_SH_REG_OFFSET
) >> 2);
768 radeon_emit(cs
, (sh_base_reg
+ SI_SGPR_START_INSTANCE
* 4 - SI_SH_REG_OFFSET
) >> 2);
769 radeon_emit(cs
, ((sh_base_reg
+ SI_SGPR_DRAWID
* 4 - SI_SH_REG_OFFSET
) >> 2) |
770 S_2C3_DRAW_INDEX_ENABLE(1) |
771 S_2C3_COUNT_INDIRECT_ENABLE(!!indirect
->indirect_draw_count
));
772 radeon_emit(cs
, indirect
->draw_count
);
773 radeon_emit(cs
, count_va
);
774 radeon_emit(cs
, count_va
>> 32);
775 radeon_emit(cs
, indirect
->stride
);
776 radeon_emit(cs
, di_src_sel
);
781 radeon_emit(cs
, PKT3(PKT3_NUM_INSTANCES
, 0, 0));
782 radeon_emit(cs
, info
->instance_count
);
784 /* Base vertex and start instance. */
785 base_vertex
= info
->indexed
? info
->index_bias
: info
->start
;
787 if (base_vertex
!= sctx
->last_base_vertex
||
788 sctx
->last_base_vertex
== SI_BASE_VERTEX_UNKNOWN
||
789 info
->start_instance
!= sctx
->last_start_instance
||
790 info
->drawid
!= sctx
->last_drawid
||
791 sh_base_reg
!= sctx
->last_sh_base_reg
) {
792 radeon_set_sh_reg_seq(cs
, sh_base_reg
+ SI_SGPR_BASE_VERTEX
* 4, 3);
793 radeon_emit(cs
, base_vertex
);
794 radeon_emit(cs
, info
->start_instance
);
795 radeon_emit(cs
, info
->drawid
);
797 sctx
->last_base_vertex
= base_vertex
;
798 sctx
->last_start_instance
= info
->start_instance
;
799 sctx
->last_drawid
= info
->drawid
;
800 sctx
->last_sh_base_reg
= sh_base_reg
;
804 index_va
+= info
->start
* ib
->index_size
;
806 radeon_emit(cs
, PKT3(PKT3_DRAW_INDEX_2
, 4, render_cond_bit
));
807 radeon_emit(cs
, index_max_size
);
808 radeon_emit(cs
, index_va
);
809 radeon_emit(cs
, index_va
>> 32);
810 radeon_emit(cs
, info
->count
);
811 radeon_emit(cs
, V_0287F0_DI_SRC_SEL_DMA
);
813 radeon_emit(cs
, PKT3(PKT3_DRAW_INDEX_AUTO
, 1, render_cond_bit
));
814 radeon_emit(cs
, info
->count
);
815 radeon_emit(cs
, V_0287F0_DI_SRC_SEL_AUTO_INDEX
|
816 S_0287F0_USE_OPAQUE(!!info
->count_from_stream_output
));
821 static void si_emit_surface_sync(struct r600_common_context
*rctx
,
822 unsigned cp_coher_cntl
)
824 struct radeon_winsys_cs
*cs
= rctx
->gfx
.cs
;
826 if (rctx
->chip_class
>= GFX9
) {
827 /* Flush caches and wait for the caches to assert idle. */
828 radeon_emit(cs
, PKT3(PKT3_ACQUIRE_MEM
, 5, 0));
829 radeon_emit(cs
, cp_coher_cntl
); /* CP_COHER_CNTL */
830 radeon_emit(cs
, 0xffffffff); /* CP_COHER_SIZE */
831 radeon_emit(cs
, 0xffffff); /* CP_COHER_SIZE_HI */
832 radeon_emit(cs
, 0); /* CP_COHER_BASE */
833 radeon_emit(cs
, 0); /* CP_COHER_BASE_HI */
834 radeon_emit(cs
, 0x0000000A); /* POLL_INTERVAL */
836 /* ACQUIRE_MEM is only required on a compute ring. */
837 radeon_emit(cs
, PKT3(PKT3_SURFACE_SYNC
, 3, 0));
838 radeon_emit(cs
, cp_coher_cntl
); /* CP_COHER_CNTL */
839 radeon_emit(cs
, 0xffffffff); /* CP_COHER_SIZE */
840 radeon_emit(cs
, 0); /* CP_COHER_BASE */
841 radeon_emit(cs
, 0x0000000A); /* POLL_INTERVAL */
845 void si_emit_cache_flush(struct si_context
*sctx
)
847 struct r600_common_context
*rctx
= &sctx
->b
;
848 struct radeon_winsys_cs
*cs
= rctx
->gfx
.cs
;
849 uint32_t cp_coher_cntl
= 0;
850 uint32_t flush_cb_db
= rctx
->flags
& (SI_CONTEXT_FLUSH_AND_INV_CB
|
851 SI_CONTEXT_FLUSH_AND_INV_DB
);
853 if (rctx
->flags
& (SI_CONTEXT_FLUSH_AND_INV_CB
|
854 SI_CONTEXT_FLUSH_AND_INV_DB
))
855 sctx
->b
.num_fb_cache_flushes
++;
857 /* SI has a bug that it always flushes ICACHE and KCACHE if either
858 * bit is set. An alternative way is to write SQC_CACHES, but that
859 * doesn't seem to work reliably. Since the bug doesn't affect
860 * correctness (it only does more work than necessary) and
861 * the performance impact is likely negligible, there is no plan
862 * to add a workaround for it.
865 if (rctx
->flags
& SI_CONTEXT_INV_ICACHE
)
866 cp_coher_cntl
|= S_0085F0_SH_ICACHE_ACTION_ENA(1);
867 if (rctx
->flags
& SI_CONTEXT_INV_SMEM_L1
)
868 cp_coher_cntl
|= S_0085F0_SH_KCACHE_ACTION_ENA(1);
870 if (rctx
->chip_class
<= VI
) {
871 if (rctx
->flags
& SI_CONTEXT_FLUSH_AND_INV_CB
) {
872 cp_coher_cntl
|= S_0085F0_CB_ACTION_ENA(1) |
873 S_0085F0_CB0_DEST_BASE_ENA(1) |
874 S_0085F0_CB1_DEST_BASE_ENA(1) |
875 S_0085F0_CB2_DEST_BASE_ENA(1) |
876 S_0085F0_CB3_DEST_BASE_ENA(1) |
877 S_0085F0_CB4_DEST_BASE_ENA(1) |
878 S_0085F0_CB5_DEST_BASE_ENA(1) |
879 S_0085F0_CB6_DEST_BASE_ENA(1) |
880 S_0085F0_CB7_DEST_BASE_ENA(1);
882 /* Necessary for DCC */
883 if (rctx
->chip_class
== VI
)
884 r600_gfx_write_event_eop(rctx
, V_028A90_FLUSH_AND_INV_CB_DATA_TS
,
885 0, 0, NULL
, 0, 0, 0);
887 if (rctx
->flags
& SI_CONTEXT_FLUSH_AND_INV_DB
)
888 cp_coher_cntl
|= S_0085F0_DB_ACTION_ENA(1) |
889 S_0085F0_DB_DEST_BASE_ENA(1);
892 if (rctx
->flags
& SI_CONTEXT_FLUSH_AND_INV_CB
) {
893 /* Flush CMASK/FMASK/DCC. SURFACE_SYNC will wait for idle. */
894 radeon_emit(cs
, PKT3(PKT3_EVENT_WRITE
, 0, 0));
895 radeon_emit(cs
, EVENT_TYPE(V_028A90_FLUSH_AND_INV_CB_META
) | EVENT_INDEX(0));
897 if (rctx
->flags
& SI_CONTEXT_FLUSH_AND_INV_DB
) {
898 /* Flush HTILE. SURFACE_SYNC will wait for idle. */
899 radeon_emit(cs
, PKT3(PKT3_EVENT_WRITE
, 0, 0));
900 radeon_emit(cs
, EVENT_TYPE(V_028A90_FLUSH_AND_INV_DB_META
) | EVENT_INDEX(0));
903 /* Wait for shader engines to go idle.
904 * VS and PS waits are unnecessary if SURFACE_SYNC is going to wait
905 * for everything including CB/DB cache flushes.
908 if (rctx
->flags
& SI_CONTEXT_PS_PARTIAL_FLUSH
) {
909 radeon_emit(cs
, PKT3(PKT3_EVENT_WRITE
, 0, 0));
910 radeon_emit(cs
, EVENT_TYPE(V_028A90_PS_PARTIAL_FLUSH
) | EVENT_INDEX(4));
911 /* Only count explicit shader flushes, not implicit ones
912 * done by SURFACE_SYNC.
914 rctx
->num_vs_flushes
++;
915 rctx
->num_ps_flushes
++;
916 } else if (rctx
->flags
& SI_CONTEXT_VS_PARTIAL_FLUSH
) {
917 radeon_emit(cs
, PKT3(PKT3_EVENT_WRITE
, 0, 0));
918 radeon_emit(cs
, EVENT_TYPE(V_028A90_VS_PARTIAL_FLUSH
) | EVENT_INDEX(4));
919 rctx
->num_vs_flushes
++;
923 if (rctx
->flags
& SI_CONTEXT_CS_PARTIAL_FLUSH
&&
924 sctx
->compute_is_busy
) {
925 radeon_emit(cs
, PKT3(PKT3_EVENT_WRITE
, 0, 0));
926 radeon_emit(cs
, EVENT_TYPE(V_028A90_CS_PARTIAL_FLUSH
| EVENT_INDEX(4)));
927 rctx
->num_cs_flushes
++;
928 sctx
->compute_is_busy
= false;
931 /* VGT state synchronization. */
932 if (rctx
->flags
& SI_CONTEXT_VGT_FLUSH
) {
933 radeon_emit(cs
, PKT3(PKT3_EVENT_WRITE
, 0, 0));
934 radeon_emit(cs
, EVENT_TYPE(V_028A90_VGT_FLUSH
) | EVENT_INDEX(0));
936 if (rctx
->flags
& SI_CONTEXT_VGT_STREAMOUT_SYNC
) {
937 radeon_emit(cs
, PKT3(PKT3_EVENT_WRITE
, 0, 0));
938 radeon_emit(cs
, EVENT_TYPE(V_028A90_VGT_STREAMOUT_SYNC
) | EVENT_INDEX(0));
941 /* GFX9: Wait for idle if we're flushing CB or DB. ACQUIRE_MEM doesn't
942 * wait for idle on GFX9. We have to use a TS event.
944 if (sctx
->b
.chip_class
>= GFX9
&& flush_cb_db
) {
945 struct r600_resource
*rbuf
= NULL
;
947 unsigned offset
= 0, tc_flags
, cb_db_event
;
949 /* Set the CB/DB flush event. */
950 switch (flush_cb_db
) {
951 case SI_CONTEXT_FLUSH_AND_INV_CB
:
952 cb_db_event
= V_028A90_FLUSH_AND_INV_CB_DATA_TS
;
954 case SI_CONTEXT_FLUSH_AND_INV_DB
:
955 cb_db_event
= V_028A90_FLUSH_AND_INV_DB_DATA_TS
;
959 cb_db_event
= V_028A90_CACHE_FLUSH_AND_INV_TS_EVENT
;
962 /* TC | TC_WB = invalidate L2 data
963 * TC_MD | TC_WB = invalidate L2 metadata
964 * TC | TC_WB | TC_MD = invalidate L2 data & metadata
966 * The metadata cache must always be invalidated for coherency
967 * between CB/DB and shaders. (metadata = HTILE, CMASK, DCC)
969 * TC must be invalidated on GFX9 only if the CB/DB surface is
970 * not pipe-aligned. If the surface is RB-aligned, it might not
971 * strictly be pipe-aligned since RB alignment takes precendence.
973 tc_flags
= EVENT_TC_WB_ACTION_ENA
|
974 EVENT_TC_MD_ACTION_ENA
;
976 /* Ideally flush TC together with CB/DB. */
977 if (rctx
->flags
& SI_CONTEXT_INV_GLOBAL_L2
) {
978 tc_flags
|= EVENT_TC_ACTION_ENA
|
979 EVENT_TCL1_ACTION_ENA
;
981 /* Clear the flags. */
982 rctx
->flags
&= ~(SI_CONTEXT_INV_GLOBAL_L2
|
983 SI_CONTEXT_WRITEBACK_GLOBAL_L2
|
984 SI_CONTEXT_INV_VMEM_L1
);
987 /* Allocate memory for the fence. */
988 u_suballocator_alloc(rctx
->allocator_zeroed_memory
, 4, 4,
989 &offset
, (struct pipe_resource
**)&rbuf
);
990 va
= rbuf
->gpu_address
+ offset
;
992 r600_gfx_write_event_eop(rctx
, cb_db_event
, tc_flags
, 1,
994 r600_gfx_wait_fence(rctx
, va
, 1, 0xffffffff);
997 /* Make sure ME is idle (it executes most packets) before continuing.
998 * This prevents read-after-write hazards between PFP and ME.
1000 if (cp_coher_cntl
||
1001 (rctx
->flags
& (SI_CONTEXT_CS_PARTIAL_FLUSH
|
1002 SI_CONTEXT_INV_VMEM_L1
|
1003 SI_CONTEXT_INV_GLOBAL_L2
|
1004 SI_CONTEXT_WRITEBACK_GLOBAL_L2
))) {
1005 radeon_emit(cs
, PKT3(PKT3_PFP_SYNC_ME
, 0, 0));
1010 * When one of the CP_COHER_CNTL.DEST_BASE flags is set, SURFACE_SYNC
1011 * waits for idle, so it should be last. SURFACE_SYNC is done in PFP.
1013 * cp_coher_cntl should contain all necessary flags except TC flags
1016 * SI-CIK don't support L2 write-back.
1018 if (rctx
->flags
& SI_CONTEXT_INV_GLOBAL_L2
||
1019 (rctx
->chip_class
<= CIK
&&
1020 (rctx
->flags
& SI_CONTEXT_WRITEBACK_GLOBAL_L2
))) {
1021 /* Invalidate L1 & L2. (L1 is always invalidated on SI)
1022 * WB must be set on VI+ when TC_ACTION is set.
1024 si_emit_surface_sync(rctx
, cp_coher_cntl
|
1025 S_0085F0_TC_ACTION_ENA(1) |
1026 S_0085F0_TCL1_ACTION_ENA(1) |
1027 S_0301F0_TC_WB_ACTION_ENA(rctx
->chip_class
>= VI
));
1029 sctx
->b
.num_L2_invalidates
++;
1031 /* L1 invalidation and L2 writeback must be done separately,
1032 * because both operations can't be done together.
1034 if (rctx
->flags
& SI_CONTEXT_WRITEBACK_GLOBAL_L2
) {
1036 * NC = apply to non-coherent MTYPEs
1037 * (i.e. MTYPE <= 1, which is what we use everywhere)
1039 * WB doesn't work without NC.
1041 si_emit_surface_sync(rctx
, cp_coher_cntl
|
1042 S_0301F0_TC_WB_ACTION_ENA(1) |
1043 S_0301F0_TC_NC_ACTION_ENA(1));
1045 sctx
->b
.num_L2_writebacks
++;
1047 if (rctx
->flags
& SI_CONTEXT_INV_VMEM_L1
) {
1048 /* Invalidate per-CU VMEM L1. */
1049 si_emit_surface_sync(rctx
, cp_coher_cntl
|
1050 S_0085F0_TCL1_ACTION_ENA(1));
1055 /* If TC flushes haven't cleared this... */
1057 si_emit_surface_sync(rctx
, cp_coher_cntl
);
1059 if (rctx
->flags
& R600_CONTEXT_START_PIPELINE_STATS
) {
1060 radeon_emit(cs
, PKT3(PKT3_EVENT_WRITE
, 0, 0));
1061 radeon_emit(cs
, EVENT_TYPE(V_028A90_PIPELINESTAT_START
) |
1063 } else if (rctx
->flags
& R600_CONTEXT_STOP_PIPELINE_STATS
) {
1064 radeon_emit(cs
, PKT3(PKT3_EVENT_WRITE
, 0, 0));
1065 radeon_emit(cs
, EVENT_TYPE(V_028A90_PIPELINESTAT_STOP
) |
1072 static void si_get_draw_start_count(struct si_context
*sctx
,
1073 const struct pipe_draw_info
*info
,
1074 unsigned *start
, unsigned *count
)
1076 struct pipe_draw_indirect_info
*indirect
= info
->indirect
;
1079 unsigned indirect_count
;
1080 struct pipe_transfer
*transfer
;
1081 unsigned begin
, end
;
1085 if (indirect
->indirect_draw_count
) {
1086 data
= pipe_buffer_map_range(&sctx
->b
.b
,
1087 indirect
->indirect_draw_count
,
1088 indirect
->indirect_draw_count_offset
,
1090 PIPE_TRANSFER_READ
, &transfer
);
1092 indirect_count
= *data
;
1094 pipe_buffer_unmap(&sctx
->b
.b
, transfer
);
1096 indirect_count
= indirect
->draw_count
;
1099 if (!indirect_count
) {
1100 *start
= *count
= 0;
1104 map_size
= (indirect_count
- 1) * indirect
->stride
+ 3 * sizeof(unsigned);
1105 data
= pipe_buffer_map_range(&sctx
->b
.b
, indirect
->buffer
,
1106 indirect
->offset
, map_size
,
1107 PIPE_TRANSFER_READ
, &transfer
);
1112 for (unsigned i
= 0; i
< indirect_count
; ++i
) {
1113 unsigned count
= data
[0];
1114 unsigned start
= data
[2];
1117 begin
= MIN2(begin
, start
);
1118 end
= MAX2(end
, start
+ count
);
1121 data
+= indirect
->stride
/ sizeof(unsigned);
1124 pipe_buffer_unmap(&sctx
->b
.b
, transfer
);
1128 *count
= end
- begin
;
1130 *start
= *count
= 0;
1133 *start
= info
->start
;
1134 *count
= info
->count
;
1138 void si_ce_pre_draw_synchronization(struct si_context
*sctx
)
1140 if (sctx
->ce_need_synchronization
) {
1141 radeon_emit(sctx
->ce_ib
, PKT3(PKT3_INCREMENT_CE_COUNTER
, 0, 0));
1142 radeon_emit(sctx
->ce_ib
, 1);
1144 radeon_emit(sctx
->b
.gfx
.cs
, PKT3(PKT3_WAIT_ON_CE_COUNTER
, 0, 0));
1145 radeon_emit(sctx
->b
.gfx
.cs
, 1);
1149 void si_ce_post_draw_synchronization(struct si_context
*sctx
)
1151 if (sctx
->ce_need_synchronization
) {
1152 radeon_emit(sctx
->b
.gfx
.cs
, PKT3(PKT3_INCREMENT_DE_COUNTER
, 0, 0));
1153 radeon_emit(sctx
->b
.gfx
.cs
, 0);
1155 sctx
->ce_need_synchronization
= false;
1159 void si_draw_vbo(struct pipe_context
*ctx
, const struct pipe_draw_info
*info
)
1161 struct si_context
*sctx
= (struct si_context
*)ctx
;
1162 struct si_state_rasterizer
*rs
= sctx
->queued
.named
.rasterizer
;
1163 const struct pipe_index_buffer
*ib
= &sctx
->index_buffer
;
1164 struct pipe_index_buffer ib_tmp
; /* for index buffer uploads only */
1165 unsigned mask
, dirty_tex_counter
;
1166 enum pipe_prim_type rast_prim
;
1167 unsigned num_patches
= 0;
1169 if (likely(!info
->indirect
)) {
1170 /* SI-CI treat instance_count==0 as instance_count==1. There is
1171 * no workaround for indirect draws, but we can at least skip
1174 if (unlikely(!info
->instance_count
))
1177 /* Handle count == 0. */
1178 if (unlikely(!info
->count
&&
1179 (info
->indexed
|| !info
->count_from_stream_output
)))
1183 if (unlikely(!sctx
->vs_shader
.cso
)) {
1187 if (unlikely(!sctx
->ps_shader
.cso
&& (!rs
|| !rs
->rasterizer_discard
))) {
1191 if (unlikely(!!sctx
->tes_shader
.cso
!= (info
->mode
== PIPE_PRIM_PATCHES
))) {
1196 /* Recompute and re-emit the texture resource states if needed. */
1197 dirty_tex_counter
= p_atomic_read(&sctx
->b
.screen
->dirty_tex_counter
);
1198 if (unlikely(dirty_tex_counter
!= sctx
->b
.last_dirty_tex_counter
)) {
1199 sctx
->b
.last_dirty_tex_counter
= dirty_tex_counter
;
1200 sctx
->framebuffer
.dirty_cbufs
|=
1201 ((1 << sctx
->framebuffer
.state
.nr_cbufs
) - 1);
1202 sctx
->framebuffer
.dirty_zsbuf
= true;
1203 sctx
->framebuffer
.do_update_surf_dirtiness
= true;
1204 si_mark_atom_dirty(sctx
, &sctx
->framebuffer
.atom
);
1205 si_update_all_texture_descriptors(sctx
);
1208 si_decompress_graphics_textures(sctx
);
1210 /* Set the rasterization primitive type.
1212 * This must be done after si_decompress_textures, which can call
1213 * draw_vbo recursively, and before si_update_shaders, which uses
1214 * current_rast_prim for this draw_vbo call. */
1215 if (sctx
->gs_shader
.cso
)
1216 rast_prim
= sctx
->gs_shader
.cso
->gs_output_prim
;
1217 else if (sctx
->tes_shader
.cso
)
1218 rast_prim
= sctx
->tes_shader
.cso
->info
.properties
[TGSI_PROPERTY_TES_PRIM_MODE
];
1220 rast_prim
= info
->mode
;
1222 if (rast_prim
!= sctx
->current_rast_prim
) {
1223 sctx
->current_rast_prim
= rast_prim
;
1224 sctx
->do_update_shaders
= true;
1227 if (sctx
->gs_shader
.cso
) {
1228 /* Determine whether the GS triangle strip adjacency fix should
1229 * be applied. Rotate every other triangle if
1230 * - triangle strips with adjacency are fed to the GS and
1231 * - primitive restart is disabled (the rotation doesn't help
1232 * when the restart occurs after an odd number of triangles).
1234 bool gs_tri_strip_adj_fix
=
1235 !sctx
->tes_shader
.cso
&&
1236 info
->mode
== PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY
&&
1237 !info
->primitive_restart
;
1239 if (gs_tri_strip_adj_fix
!= sctx
->gs_tri_strip_adj_fix
) {
1240 sctx
->gs_tri_strip_adj_fix
= gs_tri_strip_adj_fix
;
1241 sctx
->do_update_shaders
= true;
1245 if (sctx
->do_update_shaders
&& !si_update_shaders(sctx
))
1248 if (!si_upload_graphics_shader_descriptors(sctx
))
1251 ib_tmp
.buffer
= NULL
;
1253 if (info
->indexed
) {
1254 /* Translate or upload, if needed. */
1255 /* 8-bit indices are supported on VI. */
1256 if (sctx
->b
.chip_class
<= CIK
&& ib
->index_size
== 1) {
1257 unsigned start
, count
, start_offset
, size
;
1260 si_get_draw_start_count(sctx
, info
, &start
, &count
);
1261 start_offset
= start
* 2;
1264 u_upload_alloc(ctx
->stream_uploader
, start_offset
,
1266 si_optimal_tcc_alignment(sctx
, size
),
1267 &ib_tmp
.offset
, &ib_tmp
.buffer
, &ptr
);
1271 util_shorten_ubyte_elts_to_userptr(&sctx
->b
.b
, ib
, 0, 0,
1275 /* info->start will be added by the drawing code */
1276 ib_tmp
.offset
-= start_offset
;
1277 ib_tmp
.index_size
= 2;
1279 } else if (ib
->user_buffer
&& !ib
->buffer
) {
1280 unsigned start_offset
;
1282 assert(!info
->indirect
);
1283 start_offset
= info
->start
* ib
->index_size
;
1285 u_upload_data(ctx
->stream_uploader
, start_offset
,
1286 info
->count
* ib
->index_size
,
1287 sctx
->screen
->b
.info
.tcc_cache_line_size
,
1288 (char*)ib
->user_buffer
+ start_offset
,
1289 &ib_tmp
.offset
, &ib_tmp
.buffer
);
1293 /* info->start will be added by the drawing code */
1294 ib_tmp
.offset
-= start_offset
;
1295 ib_tmp
.index_size
= ib
->index_size
;
1297 } else if (sctx
->b
.chip_class
<= CIK
&&
1298 r600_resource(ib
->buffer
)->TC_L2_dirty
) {
1299 /* VI reads index buffers through TC L2, so it doesn't
1301 sctx
->b
.flags
|= SI_CONTEXT_WRITEBACK_GLOBAL_L2
;
1302 r600_resource(ib
->buffer
)->TC_L2_dirty
= false;
1306 if (info
->indirect
) {
1307 struct pipe_draw_indirect_info
*indirect
= info
->indirect
;
1309 /* Add the buffer size for memory checking in need_cs_space. */
1310 r600_context_add_resource_size(ctx
, indirect
->buffer
);
1312 if (r600_resource(indirect
->buffer
)->TC_L2_dirty
) {
1313 sctx
->b
.flags
|= SI_CONTEXT_WRITEBACK_GLOBAL_L2
;
1314 r600_resource(indirect
->buffer
)->TC_L2_dirty
= false;
1317 if (indirect
->indirect_draw_count
&&
1318 r600_resource(indirect
->indirect_draw_count
)->TC_L2_dirty
) {
1319 sctx
->b
.flags
|= SI_CONTEXT_WRITEBACK_GLOBAL_L2
;
1320 r600_resource(indirect
->indirect_draw_count
)->TC_L2_dirty
= false;
1324 si_need_cs_space(sctx
);
1326 /* Since we've called r600_context_add_resource_size for vertex buffers,
1327 * this must be called after si_need_cs_space, because we must let
1328 * need_cs_space flush before we add buffers to the buffer list.
1330 if (!si_upload_vertex_buffer_descriptors(sctx
))
1333 /* GFX9 scissor bug workaround. There is also a more efficient but
1334 * more involved alternative workaround. */
1335 if (sctx
->b
.chip_class
== GFX9
&&
1336 si_is_atom_dirty(sctx
, &sctx
->b
.scissors
.atom
))
1337 sctx
->b
.flags
|= SI_CONTEXT_PS_PARTIAL_FLUSH
;
1339 /* Flush caches before the first state atom, which does L2 prefetches. */
1341 si_emit_cache_flush(sctx
);
1343 /* Emit state atoms. */
1344 mask
= sctx
->dirty_atoms
;
1346 struct r600_atom
*atom
= sctx
->atoms
.array
[u_bit_scan(&mask
)];
1348 atom
->emit(&sctx
->b
, atom
);
1350 sctx
->dirty_atoms
= 0;
1353 mask
= sctx
->dirty_states
;
1355 unsigned i
= u_bit_scan(&mask
);
1356 struct si_pm4_state
*state
= sctx
->queued
.array
[i
];
1358 if (!state
|| sctx
->emitted
.array
[i
] == state
)
1361 si_pm4_emit(sctx
, state
);
1362 sctx
->emitted
.array
[i
] = state
;
1364 sctx
->dirty_states
= 0;
1366 si_emit_rasterizer_prim_state(sctx
);
1367 if (sctx
->tes_shader
.cso
)
1368 si_emit_derived_tess_state(sctx
, info
, &num_patches
);
1369 si_emit_vs_state(sctx
, info
);
1370 si_emit_draw_registers(sctx
, info
, num_patches
);
1372 si_ce_pre_draw_synchronization(sctx
);
1373 si_emit_draw_packets(sctx
, info
, ib
);
1374 si_ce_post_draw_synchronization(sctx
);
1376 if (sctx
->trace_buf
)
1377 si_trace_emit(sctx
);
1379 /* Workaround for a VGT hang when streamout is enabled.
1380 * It must be done after drawing. */
1381 if ((sctx
->b
.family
== CHIP_HAWAII
||
1382 sctx
->b
.family
== CHIP_TONGA
||
1383 sctx
->b
.family
== CHIP_FIJI
) &&
1384 r600_get_strmout_en(&sctx
->b
)) {
1385 sctx
->b
.flags
|= SI_CONTEXT_VGT_STREAMOUT_SYNC
;
1388 if (sctx
->framebuffer
.do_update_surf_dirtiness
) {
1389 /* Set the depth buffer as dirty. */
1390 if (sctx
->framebuffer
.state
.zsbuf
) {
1391 struct pipe_surface
*surf
= sctx
->framebuffer
.state
.zsbuf
;
1392 struct r600_texture
*rtex
= (struct r600_texture
*)surf
->texture
;
1394 if (!rtex
->tc_compatible_htile
)
1395 rtex
->dirty_level_mask
|= 1 << surf
->u
.tex
.level
;
1397 if (rtex
->surface
.flags
& RADEON_SURF_SBUFFER
)
1398 rtex
->stencil_dirty_level_mask
|= 1 << surf
->u
.tex
.level
;
1400 if (sctx
->framebuffer
.compressed_cb_mask
) {
1401 struct pipe_surface
*surf
;
1402 struct r600_texture
*rtex
;
1403 unsigned mask
= sctx
->framebuffer
.compressed_cb_mask
;
1406 unsigned i
= u_bit_scan(&mask
);
1407 surf
= sctx
->framebuffer
.state
.cbufs
[i
];
1408 rtex
= (struct r600_texture
*)surf
->texture
;
1410 if (rtex
->fmask
.size
)
1411 rtex
->dirty_level_mask
|= 1 << surf
->u
.tex
.level
;
1412 if (rtex
->dcc_gather_statistics
)
1413 rtex
->separate_dcc_dirty
= true;
1416 sctx
->framebuffer
.do_update_surf_dirtiness
= false;
1419 pipe_resource_reference(&ib_tmp
.buffer
, NULL
);
1420 sctx
->b
.num_draw_calls
++;
1421 if (info
->primitive_restart
)
1422 sctx
->b
.num_prim_restart_calls
++;
1423 if (G_0286E8_WAVESIZE(sctx
->spi_tmpring_size
))
1424 sctx
->b
.num_spill_draw_calls
++;
1427 void si_trace_emit(struct si_context
*sctx
)
1429 struct radeon_winsys_cs
*cs
= sctx
->b
.gfx
.cs
;
1432 radeon_add_to_buffer_list(&sctx
->b
, &sctx
->b
.gfx
, sctx
->trace_buf
,
1433 RADEON_USAGE_READWRITE
, RADEON_PRIO_TRACE
);
1434 radeon_emit(cs
, PKT3(PKT3_WRITE_DATA
, 3, 0));
1435 radeon_emit(cs
, S_370_DST_SEL(V_370_MEMORY_SYNC
) |
1436 S_370_WR_CONFIRM(1) |
1437 S_370_ENGINE_SEL(V_370_ME
));
1438 radeon_emit(cs
, sctx
->trace_buf
->gpu_address
);
1439 radeon_emit(cs
, sctx
->trace_buf
->gpu_address
>> 32);
1440 radeon_emit(cs
, sctx
->trace_id
);
1441 radeon_emit(cs
, PKT3(PKT3_NOP
, 0, 0));
1442 radeon_emit(cs
, AC_ENCODE_TRACE_POINT(sctx
->trace_id
));