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>
25 * Marek Olšák <maraeo@gmail.com>
29 #include "si_shader.h"
32 #include "tgsi/tgsi_parse.h"
33 #include "tgsi/tgsi_ureg.h"
34 #include "util/u_memory.h"
35 #include "util/u_simple_shaders.h"
37 static void si_set_tesseval_regs(struct si_shader
*shader
,
38 struct si_pm4_state
*pm4
)
40 struct tgsi_shader_info
*info
= &shader
->selector
->info
;
41 unsigned tes_prim_mode
= info
->properties
[TGSI_PROPERTY_TES_PRIM_MODE
];
42 unsigned tes_spacing
= info
->properties
[TGSI_PROPERTY_TES_SPACING
];
43 bool tes_vertex_order_cw
= info
->properties
[TGSI_PROPERTY_TES_VERTEX_ORDER_CW
];
44 bool tes_point_mode
= info
->properties
[TGSI_PROPERTY_TES_POINT_MODE
];
45 unsigned type
, partitioning
, topology
;
47 switch (tes_prim_mode
) {
49 type
= V_028B6C_TESS_ISOLINE
;
51 case PIPE_PRIM_TRIANGLES
:
52 type
= V_028B6C_TESS_TRIANGLE
;
55 type
= V_028B6C_TESS_QUAD
;
62 switch (tes_spacing
) {
63 case PIPE_TESS_SPACING_FRACTIONAL_ODD
:
64 partitioning
= V_028B6C_PART_FRAC_ODD
;
66 case PIPE_TESS_SPACING_FRACTIONAL_EVEN
:
67 partitioning
= V_028B6C_PART_FRAC_EVEN
;
69 case PIPE_TESS_SPACING_EQUAL
:
70 partitioning
= V_028B6C_PART_INTEGER
;
78 topology
= V_028B6C_OUTPUT_POINT
;
79 else if (tes_prim_mode
== PIPE_PRIM_LINES
)
80 topology
= V_028B6C_OUTPUT_LINE
;
81 else if (tes_vertex_order_cw
)
82 /* for some reason, this must be the other way around */
83 topology
= V_028B6C_OUTPUT_TRIANGLE_CCW
;
85 topology
= V_028B6C_OUTPUT_TRIANGLE_CW
;
87 si_pm4_set_reg(pm4
, R_028B6C_VGT_TF_PARAM
,
89 S_028B6C_PARTITIONING(partitioning
) |
90 S_028B6C_TOPOLOGY(topology
));
93 static void si_shader_ls(struct si_shader
*shader
)
95 struct si_pm4_state
*pm4
;
96 unsigned num_sgprs
, num_user_sgprs
;
97 unsigned vgpr_comp_cnt
;
100 pm4
= shader
->pm4
= CALLOC_STRUCT(si_pm4_state
);
104 va
= shader
->bo
->gpu_address
;
105 si_pm4_add_bo(pm4
, shader
->bo
, RADEON_USAGE_READ
, RADEON_PRIO_SHADER_DATA
);
107 /* We need at least 2 components for LS.
108 * VGPR0-3: (VertexID, RelAutoindex, ???, InstanceID). */
109 vgpr_comp_cnt
= shader
->uses_instanceid
? 3 : 1;
111 num_user_sgprs
= SI_LS_NUM_USER_SGPR
;
112 num_sgprs
= shader
->num_sgprs
;
113 if (num_user_sgprs
> num_sgprs
) {
114 /* Last 2 reserved SGPRs are used for VCC */
115 num_sgprs
= num_user_sgprs
+ 2;
117 assert(num_sgprs
<= 104);
119 si_pm4_set_reg(pm4
, R_00B520_SPI_SHADER_PGM_LO_LS
, va
>> 8);
120 si_pm4_set_reg(pm4
, R_00B524_SPI_SHADER_PGM_HI_LS
, va
>> 40);
122 shader
->ls_rsrc1
= S_00B528_VGPRS((shader
->num_vgprs
- 1) / 4) |
123 S_00B528_SGPRS((num_sgprs
- 1) / 8) |
124 S_00B528_VGPR_COMP_CNT(vgpr_comp_cnt
);
125 shader
->ls_rsrc2
= S_00B52C_USER_SGPR(num_user_sgprs
) |
126 S_00B52C_SCRATCH_EN(shader
->scratch_bytes_per_wave
> 0);
129 static void si_shader_hs(struct si_shader
*shader
)
131 struct si_pm4_state
*pm4
;
132 unsigned num_sgprs
, num_user_sgprs
;
135 pm4
= shader
->pm4
= CALLOC_STRUCT(si_pm4_state
);
139 va
= shader
->bo
->gpu_address
;
140 si_pm4_add_bo(pm4
, shader
->bo
, RADEON_USAGE_READ
, RADEON_PRIO_SHADER_DATA
);
142 num_user_sgprs
= SI_TCS_NUM_USER_SGPR
;
143 num_sgprs
= shader
->num_sgprs
;
144 /* One SGPR after user SGPRs is pre-loaded with tessellation factor
146 if ((num_user_sgprs
+ 1) > num_sgprs
) {
147 /* Last 2 reserved SGPRs are used for VCC */
148 num_sgprs
= num_user_sgprs
+ 1 + 2;
150 assert(num_sgprs
<= 104);
152 si_pm4_set_reg(pm4
, R_00B420_SPI_SHADER_PGM_LO_HS
, va
>> 8);
153 si_pm4_set_reg(pm4
, R_00B424_SPI_SHADER_PGM_HI_HS
, va
>> 40);
154 si_pm4_set_reg(pm4
, R_00B428_SPI_SHADER_PGM_RSRC1_HS
,
155 S_00B428_VGPRS((shader
->num_vgprs
- 1) / 4) |
156 S_00B428_SGPRS((num_sgprs
- 1) / 8));
157 si_pm4_set_reg(pm4
, R_00B42C_SPI_SHADER_PGM_RSRC2_HS
,
158 S_00B42C_USER_SGPR(num_user_sgprs
) |
159 S_00B42C_SCRATCH_EN(shader
->scratch_bytes_per_wave
> 0));
162 static void si_shader_es(struct si_shader
*shader
)
164 struct si_pm4_state
*pm4
;
165 unsigned num_sgprs
, num_user_sgprs
;
166 unsigned vgpr_comp_cnt
;
169 pm4
= shader
->pm4
= CALLOC_STRUCT(si_pm4_state
);
174 va
= shader
->bo
->gpu_address
;
175 si_pm4_add_bo(pm4
, shader
->bo
, RADEON_USAGE_READ
, RADEON_PRIO_SHADER_DATA
);
177 if (shader
->selector
->type
== PIPE_SHADER_VERTEX
) {
178 vgpr_comp_cnt
= shader
->uses_instanceid
? 3 : 0;
179 num_user_sgprs
= SI_VS_NUM_USER_SGPR
;
180 } else if (shader
->selector
->type
== PIPE_SHADER_TESS_EVAL
) {
181 vgpr_comp_cnt
= 3; /* all components are needed for TES */
182 num_user_sgprs
= SI_TES_NUM_USER_SGPR
;
186 num_sgprs
= shader
->num_sgprs
;
187 /* One SGPR after user SGPRs is pre-loaded with es2gs_offset */
188 if ((num_user_sgprs
+ 1) > num_sgprs
) {
189 /* Last 2 reserved SGPRs are used for VCC */
190 num_sgprs
= num_user_sgprs
+ 1 + 2;
192 assert(num_sgprs
<= 104);
194 si_pm4_set_reg(pm4
, R_00B320_SPI_SHADER_PGM_LO_ES
, va
>> 8);
195 si_pm4_set_reg(pm4
, R_00B324_SPI_SHADER_PGM_HI_ES
, va
>> 40);
196 si_pm4_set_reg(pm4
, R_00B328_SPI_SHADER_PGM_RSRC1_ES
,
197 S_00B328_VGPRS((shader
->num_vgprs
- 1) / 4) |
198 S_00B328_SGPRS((num_sgprs
- 1) / 8) |
199 S_00B328_VGPR_COMP_CNT(vgpr_comp_cnt
) |
200 S_00B328_DX10_CLAMP(shader
->dx10_clamp_mode
));
201 si_pm4_set_reg(pm4
, R_00B32C_SPI_SHADER_PGM_RSRC2_ES
,
202 S_00B32C_USER_SGPR(num_user_sgprs
) |
203 S_00B32C_SCRATCH_EN(shader
->scratch_bytes_per_wave
> 0));
205 if (shader
->selector
->type
== PIPE_SHADER_TESS_EVAL
)
206 si_set_tesseval_regs(shader
, pm4
);
209 static unsigned si_gs_get_max_stream(struct si_shader
*shader
)
211 struct pipe_stream_output_info
*so
= &shader
->selector
->so
;
212 unsigned max_stream
= 0, i
;
214 if (so
->num_outputs
== 0)
217 for (i
= 0; i
< so
->num_outputs
; i
++) {
218 if (so
->output
[i
].stream
> max_stream
)
219 max_stream
= so
->output
[i
].stream
;
224 static void si_shader_gs(struct si_shader
*shader
)
226 unsigned gs_vert_itemsize
= shader
->selector
->info
.num_outputs
* 16;
227 unsigned gs_max_vert_out
= shader
->selector
->gs_max_out_vertices
;
228 unsigned gsvs_itemsize
= (gs_vert_itemsize
* gs_max_vert_out
) >> 2;
229 unsigned gs_num_invocations
= shader
->selector
->gs_num_invocations
;
231 struct si_pm4_state
*pm4
;
232 unsigned num_sgprs
, num_user_sgprs
;
234 unsigned max_stream
= si_gs_get_max_stream(shader
);
236 /* The GSVS_RING_ITEMSIZE register takes 15 bits */
237 assert(gsvs_itemsize
< (1 << 15));
239 pm4
= shader
->pm4
= CALLOC_STRUCT(si_pm4_state
);
244 if (gs_max_vert_out
<= 128) {
245 cut_mode
= V_028A40_GS_CUT_128
;
246 } else if (gs_max_vert_out
<= 256) {
247 cut_mode
= V_028A40_GS_CUT_256
;
248 } else if (gs_max_vert_out
<= 512) {
249 cut_mode
= V_028A40_GS_CUT_512
;
251 assert(gs_max_vert_out
<= 1024);
252 cut_mode
= V_028A40_GS_CUT_1024
;
255 si_pm4_set_reg(pm4
, R_028A40_VGT_GS_MODE
,
256 S_028A40_MODE(V_028A40_GS_SCENARIO_G
) |
257 S_028A40_CUT_MODE(cut_mode
)|
258 S_028A40_ES_WRITE_OPTIMIZE(1) |
259 S_028A40_GS_WRITE_OPTIMIZE(1));
261 si_pm4_set_reg(pm4
, R_028A60_VGT_GSVS_RING_OFFSET_1
, gsvs_itemsize
);
262 si_pm4_set_reg(pm4
, R_028A64_VGT_GSVS_RING_OFFSET_2
, gsvs_itemsize
* ((max_stream
>= 2) ? 2 : 1));
263 si_pm4_set_reg(pm4
, R_028A68_VGT_GSVS_RING_OFFSET_3
, gsvs_itemsize
* ((max_stream
>= 3) ? 3 : 1));
265 si_pm4_set_reg(pm4
, R_028AAC_VGT_ESGS_RING_ITEMSIZE
,
266 util_bitcount64(shader
->selector
->inputs_read
) * (16 >> 2));
267 si_pm4_set_reg(pm4
, R_028AB0_VGT_GSVS_RING_ITEMSIZE
, gsvs_itemsize
* (max_stream
+ 1));
269 si_pm4_set_reg(pm4
, R_028B38_VGT_GS_MAX_VERT_OUT
, gs_max_vert_out
);
271 si_pm4_set_reg(pm4
, R_028B5C_VGT_GS_VERT_ITEMSIZE
, gs_vert_itemsize
>> 2);
272 si_pm4_set_reg(pm4
, R_028B60_VGT_GS_VERT_ITEMSIZE_1
, (max_stream
>= 1) ? gs_vert_itemsize
>> 2 : 0);
273 si_pm4_set_reg(pm4
, R_028B64_VGT_GS_VERT_ITEMSIZE_2
, (max_stream
>= 2) ? gs_vert_itemsize
>> 2 : 0);
274 si_pm4_set_reg(pm4
, R_028B68_VGT_GS_VERT_ITEMSIZE_3
, (max_stream
>= 3) ? gs_vert_itemsize
>> 2 : 0);
276 si_pm4_set_reg(pm4
, R_028B90_VGT_GS_INSTANCE_CNT
,
277 S_028B90_CNT(MIN2(gs_num_invocations
, 127)) |
278 S_028B90_ENABLE(gs_num_invocations
> 0));
280 va
= shader
->bo
->gpu_address
;
281 si_pm4_add_bo(pm4
, shader
->bo
, RADEON_USAGE_READ
, RADEON_PRIO_SHADER_DATA
);
282 si_pm4_set_reg(pm4
, R_00B220_SPI_SHADER_PGM_LO_GS
, va
>> 8);
283 si_pm4_set_reg(pm4
, R_00B224_SPI_SHADER_PGM_HI_GS
, va
>> 40);
285 num_user_sgprs
= SI_GS_NUM_USER_SGPR
;
286 num_sgprs
= shader
->num_sgprs
;
287 /* Two SGPRs after user SGPRs are pre-loaded with gs2vs_offset, gs_wave_id */
288 if ((num_user_sgprs
+ 2) > num_sgprs
) {
289 /* Last 2 reserved SGPRs are used for VCC */
290 num_sgprs
= num_user_sgprs
+ 2 + 2;
292 assert(num_sgprs
<= 104);
294 si_pm4_set_reg(pm4
, R_00B228_SPI_SHADER_PGM_RSRC1_GS
,
295 S_00B228_VGPRS((shader
->num_vgprs
- 1) / 4) |
296 S_00B228_SGPRS((num_sgprs
- 1) / 8) |
297 S_00B228_DX10_CLAMP(shader
->dx10_clamp_mode
));
298 si_pm4_set_reg(pm4
, R_00B22C_SPI_SHADER_PGM_RSRC2_GS
,
299 S_00B22C_USER_SGPR(num_user_sgprs
) |
300 S_00B22C_SCRATCH_EN(shader
->scratch_bytes_per_wave
> 0));
303 static void si_shader_vs(struct si_shader
*shader
)
305 struct si_pm4_state
*pm4
;
306 unsigned num_sgprs
, num_user_sgprs
;
307 unsigned nparams
, vgpr_comp_cnt
;
309 unsigned window_space
=
310 shader
->selector
->info
.properties
[TGSI_PROPERTY_VS_WINDOW_SPACE_POSITION
];
311 bool enable_prim_id
= si_vs_exports_prim_id(shader
);
313 pm4
= shader
->pm4
= CALLOC_STRUCT(si_pm4_state
);
318 /* If this is the GS copy shader, the GS state writes this register.
319 * Otherwise, the VS state writes it.
321 if (!shader
->is_gs_copy_shader
) {
322 si_pm4_set_reg(pm4
, R_028A40_VGT_GS_MODE
,
323 S_028A40_MODE(enable_prim_id
? V_028A40_GS_SCENARIO_A
: 0));
324 si_pm4_set_reg(pm4
, R_028A84_VGT_PRIMITIVEID_EN
, enable_prim_id
);
326 si_pm4_set_reg(pm4
, R_028A84_VGT_PRIMITIVEID_EN
, 0);
328 va
= shader
->bo
->gpu_address
;
329 si_pm4_add_bo(pm4
, shader
->bo
, RADEON_USAGE_READ
, RADEON_PRIO_SHADER_DATA
);
331 if (shader
->is_gs_copy_shader
) {
332 vgpr_comp_cnt
= 0; /* only VertexID is needed for GS-COPY. */
333 num_user_sgprs
= SI_GSCOPY_NUM_USER_SGPR
;
334 } else if (shader
->selector
->type
== PIPE_SHADER_VERTEX
) {
335 vgpr_comp_cnt
= shader
->uses_instanceid
? 3 : (enable_prim_id
? 2 : 0);
336 num_user_sgprs
= SI_VS_NUM_USER_SGPR
;
337 } else if (shader
->selector
->type
== PIPE_SHADER_TESS_EVAL
) {
338 vgpr_comp_cnt
= 3; /* all components are needed for TES */
339 num_user_sgprs
= SI_TES_NUM_USER_SGPR
;
343 num_sgprs
= shader
->num_sgprs
;
344 if (num_user_sgprs
> num_sgprs
) {
345 /* Last 2 reserved SGPRs are used for VCC */
346 num_sgprs
= num_user_sgprs
+ 2;
348 assert(num_sgprs
<= 104);
350 /* VS is required to export at least one param. */
351 nparams
= MAX2(shader
->nr_param_exports
, 1);
352 si_pm4_set_reg(pm4
, R_0286C4_SPI_VS_OUT_CONFIG
,
353 S_0286C4_VS_EXPORT_COUNT(nparams
- 1));
355 si_pm4_set_reg(pm4
, R_02870C_SPI_SHADER_POS_FORMAT
,
356 S_02870C_POS0_EXPORT_FORMAT(V_02870C_SPI_SHADER_4COMP
) |
357 S_02870C_POS1_EXPORT_FORMAT(shader
->nr_pos_exports
> 1 ?
358 V_02870C_SPI_SHADER_4COMP
:
359 V_02870C_SPI_SHADER_NONE
) |
360 S_02870C_POS2_EXPORT_FORMAT(shader
->nr_pos_exports
> 2 ?
361 V_02870C_SPI_SHADER_4COMP
:
362 V_02870C_SPI_SHADER_NONE
) |
363 S_02870C_POS3_EXPORT_FORMAT(shader
->nr_pos_exports
> 3 ?
364 V_02870C_SPI_SHADER_4COMP
:
365 V_02870C_SPI_SHADER_NONE
));
367 si_pm4_set_reg(pm4
, R_00B120_SPI_SHADER_PGM_LO_VS
, va
>> 8);
368 si_pm4_set_reg(pm4
, R_00B124_SPI_SHADER_PGM_HI_VS
, va
>> 40);
369 si_pm4_set_reg(pm4
, R_00B128_SPI_SHADER_PGM_RSRC1_VS
,
370 S_00B128_VGPRS((shader
->num_vgprs
- 1) / 4) |
371 S_00B128_SGPRS((num_sgprs
- 1) / 8) |
372 S_00B128_VGPR_COMP_CNT(vgpr_comp_cnt
) |
373 S_00B128_DX10_CLAMP(shader
->dx10_clamp_mode
));
374 si_pm4_set_reg(pm4
, R_00B12C_SPI_SHADER_PGM_RSRC2_VS
,
375 S_00B12C_USER_SGPR(num_user_sgprs
) |
376 S_00B12C_SO_BASE0_EN(!!shader
->selector
->so
.stride
[0]) |
377 S_00B12C_SO_BASE1_EN(!!shader
->selector
->so
.stride
[1]) |
378 S_00B12C_SO_BASE2_EN(!!shader
->selector
->so
.stride
[2]) |
379 S_00B12C_SO_BASE3_EN(!!shader
->selector
->so
.stride
[3]) |
380 S_00B12C_SO_EN(!!shader
->selector
->so
.num_outputs
) |
381 S_00B12C_SCRATCH_EN(shader
->scratch_bytes_per_wave
> 0));
383 si_pm4_set_reg(pm4
, R_028818_PA_CL_VTE_CNTL
,
384 S_028818_VTX_XY_FMT(1) | S_028818_VTX_Z_FMT(1));
386 si_pm4_set_reg(pm4
, R_028818_PA_CL_VTE_CNTL
,
387 S_028818_VTX_W0_FMT(1) |
388 S_028818_VPORT_X_SCALE_ENA(1) | S_028818_VPORT_X_OFFSET_ENA(1) |
389 S_028818_VPORT_Y_SCALE_ENA(1) | S_028818_VPORT_Y_OFFSET_ENA(1) |
390 S_028818_VPORT_Z_SCALE_ENA(1) | S_028818_VPORT_Z_OFFSET_ENA(1));
392 if (shader
->selector
->type
== PIPE_SHADER_TESS_EVAL
)
393 si_set_tesseval_regs(shader
, pm4
);
396 static void si_shader_ps(struct si_shader
*shader
)
398 struct tgsi_shader_info
*info
= &shader
->selector
->info
;
399 struct si_pm4_state
*pm4
;
400 unsigned i
, spi_ps_in_control
;
401 unsigned num_sgprs
, num_user_sgprs
;
402 unsigned spi_baryc_cntl
= 0, spi_ps_input_ena
;
405 pm4
= shader
->pm4
= CALLOC_STRUCT(si_pm4_state
);
410 for (i
= 0; i
< info
->num_inputs
; i
++) {
411 switch (info
->input_semantic_name
[i
]) {
412 case TGSI_SEMANTIC_POSITION
:
413 /* SPI_BARYC_CNTL.POS_FLOAT_LOCATION
415 * 0 -> Position = pixel center (default)
416 * 1 -> Position = pixel centroid
417 * 2 -> Position = at sample position
419 switch (info
->input_interpolate_loc
[i
]) {
420 case TGSI_INTERPOLATE_LOC_CENTROID
:
421 spi_baryc_cntl
|= S_0286E0_POS_FLOAT_LOCATION(1);
423 case TGSI_INTERPOLATE_LOC_SAMPLE
:
424 spi_baryc_cntl
|= S_0286E0_POS_FLOAT_LOCATION(2);
428 if (info
->properties
[TGSI_PROPERTY_FS_COORD_PIXEL_CENTER
] ==
429 TGSI_FS_COORD_PIXEL_CENTER_INTEGER
)
430 spi_baryc_cntl
|= S_0286E0_POS_FLOAT_ULC(1);
435 spi_ps_in_control
= S_0286D8_NUM_INTERP(shader
->nparam
) |
436 S_0286D8_BC_OPTIMIZE_DISABLE(1);
438 si_pm4_set_reg(pm4
, R_0286E0_SPI_BARYC_CNTL
, spi_baryc_cntl
);
439 spi_ps_input_ena
= shader
->spi_ps_input_ena
;
440 /* we need to enable at least one of them, otherwise we hang the GPU */
441 assert(G_0286CC_PERSP_SAMPLE_ENA(spi_ps_input_ena
) ||
442 G_0286CC_PERSP_CENTER_ENA(spi_ps_input_ena
) ||
443 G_0286CC_PERSP_CENTROID_ENA(spi_ps_input_ena
) ||
444 G_0286CC_PERSP_PULL_MODEL_ENA(spi_ps_input_ena
) ||
445 G_0286CC_LINEAR_SAMPLE_ENA(spi_ps_input_ena
) ||
446 G_0286CC_LINEAR_CENTER_ENA(spi_ps_input_ena
) ||
447 G_0286CC_LINEAR_CENTROID_ENA(spi_ps_input_ena
) ||
448 G_0286CC_LINE_STIPPLE_TEX_ENA(spi_ps_input_ena
));
450 si_pm4_set_reg(pm4
, R_0286CC_SPI_PS_INPUT_ENA
, spi_ps_input_ena
);
451 si_pm4_set_reg(pm4
, R_0286D0_SPI_PS_INPUT_ADDR
, spi_ps_input_ena
);
452 si_pm4_set_reg(pm4
, R_0286D8_SPI_PS_IN_CONTROL
, spi_ps_in_control
);
454 si_pm4_set_reg(pm4
, R_028710_SPI_SHADER_Z_FORMAT
, shader
->spi_shader_z_format
);
455 si_pm4_set_reg(pm4
, R_028714_SPI_SHADER_COL_FORMAT
,
456 shader
->spi_shader_col_format
);
457 si_pm4_set_reg(pm4
, R_02823C_CB_SHADER_MASK
, shader
->cb_shader_mask
);
459 va
= shader
->bo
->gpu_address
;
460 si_pm4_add_bo(pm4
, shader
->bo
, RADEON_USAGE_READ
, RADEON_PRIO_SHADER_DATA
);
461 si_pm4_set_reg(pm4
, R_00B020_SPI_SHADER_PGM_LO_PS
, va
>> 8);
462 si_pm4_set_reg(pm4
, R_00B024_SPI_SHADER_PGM_HI_PS
, va
>> 40);
464 num_user_sgprs
= SI_PS_NUM_USER_SGPR
;
465 num_sgprs
= shader
->num_sgprs
;
466 /* One SGPR after user SGPRs is pre-loaded with {prim_mask, lds_offset} */
467 if ((num_user_sgprs
+ 1) > num_sgprs
) {
468 /* Last 2 reserved SGPRs are used for VCC */
469 num_sgprs
= num_user_sgprs
+ 1 + 2;
471 assert(num_sgprs
<= 104);
473 si_pm4_set_reg(pm4
, R_00B028_SPI_SHADER_PGM_RSRC1_PS
,
474 S_00B028_VGPRS((shader
->num_vgprs
- 1) / 4) |
475 S_00B028_SGPRS((num_sgprs
- 1) / 8) |
476 S_00B028_DX10_CLAMP(shader
->dx10_clamp_mode
));
477 si_pm4_set_reg(pm4
, R_00B02C_SPI_SHADER_PGM_RSRC2_PS
,
478 S_00B02C_EXTRA_LDS_SIZE(shader
->lds_size
) |
479 S_00B02C_USER_SGPR(num_user_sgprs
) |
480 S_00B32C_SCRATCH_EN(shader
->scratch_bytes_per_wave
> 0));
483 static void si_shader_init_pm4_state(struct si_shader
*shader
)
487 si_pm4_free_state_simple(shader
->pm4
);
489 switch (shader
->selector
->type
) {
490 case PIPE_SHADER_VERTEX
:
491 if (shader
->key
.vs
.as_ls
)
492 si_shader_ls(shader
);
493 else if (shader
->key
.vs
.as_es
)
494 si_shader_es(shader
);
496 si_shader_vs(shader
);
498 case PIPE_SHADER_TESS_CTRL
:
499 si_shader_hs(shader
);
501 case PIPE_SHADER_TESS_EVAL
:
502 if (shader
->key
.tes
.as_es
)
503 si_shader_es(shader
);
505 si_shader_vs(shader
);
507 case PIPE_SHADER_GEOMETRY
:
508 si_shader_gs(shader
);
509 si_shader_vs(shader
->gs_copy_shader
);
511 case PIPE_SHADER_FRAGMENT
:
512 si_shader_ps(shader
);
519 /* Compute the key for the hw shader variant */
520 static inline void si_shader_selector_key(struct pipe_context
*ctx
,
521 struct si_shader_selector
*sel
,
522 union si_shader_key
*key
)
524 struct si_context
*sctx
= (struct si_context
*)ctx
;
527 memset(key
, 0, sizeof(*key
));
530 case PIPE_SHADER_VERTEX
:
531 if (sctx
->vertex_elements
)
532 for (i
= 0; i
< sctx
->vertex_elements
->count
; ++i
)
533 key
->vs
.instance_divisors
[i
] =
534 sctx
->vertex_elements
->elements
[i
].instance_divisor
;
536 if (sctx
->tes_shader
)
538 else if (sctx
->gs_shader
) {
540 key
->vs
.es_enabled_outputs
= sctx
->gs_shader
->inputs_read
;
543 if (!sctx
->gs_shader
&& sctx
->ps_shader
&&
544 sctx
->ps_shader
->info
.uses_primid
)
545 key
->vs
.export_prim_id
= 1;
547 case PIPE_SHADER_TESS_CTRL
:
549 sctx
->tes_shader
->info
.properties
[TGSI_PROPERTY_TES_PRIM_MODE
];
551 case PIPE_SHADER_TESS_EVAL
:
552 if (sctx
->gs_shader
) {
554 key
->tes
.es_enabled_outputs
= sctx
->gs_shader
->inputs_read
;
555 } else if (sctx
->ps_shader
&& sctx
->ps_shader
->info
.uses_primid
)
556 key
->tes
.export_prim_id
= 1;
558 case PIPE_SHADER_GEOMETRY
:
560 case PIPE_SHADER_FRAGMENT
: {
561 struct si_state_rasterizer
*rs
= sctx
->queued
.named
.rasterizer
;
563 if (sel
->info
.properties
[TGSI_PROPERTY_FS_COLOR0_WRITES_ALL_CBUFS
])
564 key
->ps
.last_cbuf
= MAX2(sctx
->framebuffer
.state
.nr_cbufs
, 1) - 1;
565 key
->ps
.export_16bpc
= sctx
->framebuffer
.export_16bpc
;
568 bool is_poly
= (sctx
->current_rast_prim
>= PIPE_PRIM_TRIANGLES
&&
569 sctx
->current_rast_prim
<= PIPE_PRIM_POLYGON
) ||
570 sctx
->current_rast_prim
>= PIPE_PRIM_TRIANGLES_ADJACENCY
;
571 bool is_line
= !is_poly
&& sctx
->current_rast_prim
!= PIPE_PRIM_POINTS
;
573 key
->ps
.color_two_side
= rs
->two_side
;
575 if (sctx
->queued
.named
.blend
) {
576 key
->ps
.alpha_to_one
= sctx
->queued
.named
.blend
->alpha_to_one
&&
577 rs
->multisample_enable
&&
578 !sctx
->framebuffer
.cb0_is_integer
;
581 key
->ps
.poly_stipple
= rs
->poly_stipple_enable
&& is_poly
;
582 key
->ps
.poly_line_smoothing
= ((is_poly
&& rs
->poly_smooth
) ||
583 (is_line
&& rs
->line_smooth
)) &&
584 sctx
->framebuffer
.nr_samples
<= 1;
587 key
->ps
.alpha_func
= PIPE_FUNC_ALWAYS
;
588 /* Alpha-test should be disabled if colorbuffer 0 is integer. */
589 if (sctx
->queued
.named
.dsa
&&
590 !sctx
->framebuffer
.cb0_is_integer
)
591 key
->ps
.alpha_func
= sctx
->queued
.named
.dsa
->alpha_func
;
599 /* Select the hw shader variant depending on the current state. */
600 static int si_shader_select(struct pipe_context
*ctx
,
601 struct si_shader_selector
*sel
)
603 struct si_context
*sctx
= (struct si_context
*)ctx
;
604 union si_shader_key key
;
605 struct si_shader
* shader
= NULL
;
608 si_shader_selector_key(ctx
, sel
, &key
);
610 /* Check if we don't need to change anything.
611 * This path is also used for most shaders that don't need multiple
612 * variants, it will cost just a computation of the key and this
614 if (likely(sel
->current
&& memcmp(&sel
->current
->key
, &key
, sizeof(key
)) == 0)) {
618 /* lookup if we have other variants in the list */
619 if (sel
->num_shaders
> 1) {
620 struct si_shader
*p
= sel
->current
, *c
= p
->next_variant
;
622 while (c
&& memcmp(&c
->key
, &key
, sizeof(key
)) != 0) {
628 p
->next_variant
= c
->next_variant
;
634 shader
->next_variant
= sel
->current
;
635 sel
->current
= shader
;
637 shader
= CALLOC(1, sizeof(struct si_shader
));
638 shader
->selector
= sel
;
641 shader
->next_variant
= sel
->current
;
642 sel
->current
= shader
;
643 r
= si_shader_create((struct si_screen
*)ctx
->screen
, sctx
->tm
,
646 R600_ERR("Failed to build shader variant (type=%u) %d\n",
652 si_shader_init_pm4_state(shader
);
654 p_atomic_inc(&sctx
->screen
->b
.num_compilations
);
660 static void *si_create_shader_state(struct pipe_context
*ctx
,
661 const struct pipe_shader_state
*state
,
662 unsigned pipe_shader_type
)
664 struct si_screen
*sscreen
= (struct si_screen
*)ctx
->screen
;
665 struct si_shader_selector
*sel
= CALLOC_STRUCT(si_shader_selector
);
668 sel
->type
= pipe_shader_type
;
669 sel
->tokens
= tgsi_dup_tokens(state
->tokens
);
670 sel
->so
= state
->stream_output
;
671 tgsi_scan_shader(state
->tokens
, &sel
->info
);
672 p_atomic_inc(&sscreen
->b
.num_shaders_created
);
674 switch (pipe_shader_type
) {
675 case PIPE_SHADER_GEOMETRY
:
676 sel
->gs_output_prim
=
677 sel
->info
.properties
[TGSI_PROPERTY_GS_OUTPUT_PRIM
];
678 sel
->gs_max_out_vertices
=
679 sel
->info
.properties
[TGSI_PROPERTY_GS_MAX_OUTPUT_VERTICES
];
680 sel
->gs_num_invocations
=
681 sel
->info
.properties
[TGSI_PROPERTY_GS_INVOCATIONS
];
683 for (i
= 0; i
< sel
->info
.num_inputs
; i
++) {
684 unsigned name
= sel
->info
.input_semantic_name
[i
];
685 unsigned index
= sel
->info
.input_semantic_index
[i
];
688 case TGSI_SEMANTIC_PRIMID
:
692 1llu << si_shader_io_get_unique_index(name
, index
);
697 case PIPE_SHADER_VERTEX
:
698 case PIPE_SHADER_TESS_CTRL
:
699 for (i
= 0; i
< sel
->info
.num_outputs
; i
++) {
700 unsigned name
= sel
->info
.output_semantic_name
[i
];
701 unsigned index
= sel
->info
.output_semantic_index
[i
];
704 case TGSI_SEMANTIC_TESSINNER
:
705 case TGSI_SEMANTIC_TESSOUTER
:
706 case TGSI_SEMANTIC_PATCH
:
707 sel
->patch_outputs_written
|=
708 1llu << si_shader_io_get_unique_index(name
, index
);
711 sel
->outputs_written
|=
712 1llu << si_shader_io_get_unique_index(name
, index
);
718 if (sscreen
->b
.debug_flags
& DBG_PRECOMPILE
)
719 si_shader_select(ctx
, sel
);
724 static void *si_create_fs_state(struct pipe_context
*ctx
,
725 const struct pipe_shader_state
*state
)
727 return si_create_shader_state(ctx
, state
, PIPE_SHADER_FRAGMENT
);
730 static void *si_create_gs_state(struct pipe_context
*ctx
,
731 const struct pipe_shader_state
*state
)
733 return si_create_shader_state(ctx
, state
, PIPE_SHADER_GEOMETRY
);
736 static void *si_create_vs_state(struct pipe_context
*ctx
,
737 const struct pipe_shader_state
*state
)
739 return si_create_shader_state(ctx
, state
, PIPE_SHADER_VERTEX
);
742 static void *si_create_tcs_state(struct pipe_context
*ctx
,
743 const struct pipe_shader_state
*state
)
745 return si_create_shader_state(ctx
, state
, PIPE_SHADER_TESS_CTRL
);
748 static void *si_create_tes_state(struct pipe_context
*ctx
,
749 const struct pipe_shader_state
*state
)
751 return si_create_shader_state(ctx
, state
, PIPE_SHADER_TESS_EVAL
);
754 static void si_bind_vs_shader(struct pipe_context
*ctx
, void *state
)
756 struct si_context
*sctx
= (struct si_context
*)ctx
;
757 struct si_shader_selector
*sel
= state
;
759 if (sctx
->vs_shader
== sel
|| !sel
)
762 sctx
->vs_shader
= sel
;
763 si_mark_atom_dirty(sctx
, &sctx
->clip_regs
);
766 static void si_bind_gs_shader(struct pipe_context
*ctx
, void *state
)
768 struct si_context
*sctx
= (struct si_context
*)ctx
;
769 struct si_shader_selector
*sel
= state
;
770 bool enable_changed
= !!sctx
->gs_shader
!= !!sel
;
772 if (sctx
->gs_shader
== sel
)
775 sctx
->gs_shader
= sel
;
776 si_mark_atom_dirty(sctx
, &sctx
->clip_regs
);
777 sctx
->last_rast_prim
= -1; /* reset this so that it gets updated */
780 si_shader_change_notify(sctx
);
783 static void si_bind_tcs_shader(struct pipe_context
*ctx
, void *state
)
785 struct si_context
*sctx
= (struct si_context
*)ctx
;
786 struct si_shader_selector
*sel
= state
;
787 bool enable_changed
= !!sctx
->tcs_shader
!= !!sel
;
789 if (sctx
->tcs_shader
== sel
)
792 sctx
->tcs_shader
= sel
;
795 sctx
->last_tcs
= NULL
; /* invalidate derived tess state */
798 static void si_bind_tes_shader(struct pipe_context
*ctx
, void *state
)
800 struct si_context
*sctx
= (struct si_context
*)ctx
;
801 struct si_shader_selector
*sel
= state
;
802 bool enable_changed
= !!sctx
->tes_shader
!= !!sel
;
804 if (sctx
->tes_shader
== sel
)
807 sctx
->tes_shader
= sel
;
808 si_mark_atom_dirty(sctx
, &sctx
->clip_regs
);
809 sctx
->last_rast_prim
= -1; /* reset this so that it gets updated */
811 if (enable_changed
) {
812 si_shader_change_notify(sctx
);
813 sctx
->last_tes_sh_base
= -1; /* invalidate derived tess state */
817 static void si_make_dummy_ps(struct si_context
*sctx
)
819 if (!sctx
->dummy_pixel_shader
) {
820 sctx
->dummy_pixel_shader
=
821 util_make_fragment_cloneinput_shader(&sctx
->b
.b
, 0,
822 TGSI_SEMANTIC_GENERIC
,
823 TGSI_INTERPOLATE_CONSTANT
);
827 static void si_bind_ps_shader(struct pipe_context
*ctx
, void *state
)
829 struct si_context
*sctx
= (struct si_context
*)ctx
;
830 struct si_shader_selector
*sel
= state
;
832 /* skip if supplied shader is one already in use */
833 if (sctx
->ps_shader
== sel
)
836 /* use a dummy shader if binding a NULL shader */
838 si_make_dummy_ps(sctx
);
839 sel
= sctx
->dummy_pixel_shader
;
842 sctx
->ps_shader
= sel
;
845 static void si_delete_shader_selector(struct pipe_context
*ctx
,
846 struct si_shader_selector
*sel
)
848 struct si_context
*sctx
= (struct si_context
*)ctx
;
849 struct si_shader
*p
= sel
->current
, *c
;
854 case PIPE_SHADER_VERTEX
:
856 si_pm4_delete_state(sctx
, ls
, p
->pm4
);
857 else if (p
->key
.vs
.as_es
)
858 si_pm4_delete_state(sctx
, es
, p
->pm4
);
860 si_pm4_delete_state(sctx
, vs
, p
->pm4
);
862 case PIPE_SHADER_TESS_CTRL
:
863 si_pm4_delete_state(sctx
, hs
, p
->pm4
);
865 case PIPE_SHADER_TESS_EVAL
:
866 if (p
->key
.tes
.as_es
)
867 si_pm4_delete_state(sctx
, es
, p
->pm4
);
869 si_pm4_delete_state(sctx
, vs
, p
->pm4
);
871 case PIPE_SHADER_GEOMETRY
:
872 si_pm4_delete_state(sctx
, gs
, p
->pm4
);
873 si_pm4_delete_state(sctx
, vs
, p
->gs_copy_shader
->pm4
);
875 case PIPE_SHADER_FRAGMENT
:
876 si_pm4_delete_state(sctx
, ps
, p
->pm4
);
880 si_shader_destroy(ctx
, p
);
889 static void si_delete_vs_shader(struct pipe_context
*ctx
, void *state
)
891 struct si_context
*sctx
= (struct si_context
*)ctx
;
892 struct si_shader_selector
*sel
= (struct si_shader_selector
*)state
;
894 if (sctx
->vs_shader
== sel
) {
895 sctx
->vs_shader
= NULL
;
898 si_delete_shader_selector(ctx
, sel
);
901 static void si_delete_gs_shader(struct pipe_context
*ctx
, void *state
)
903 struct si_context
*sctx
= (struct si_context
*)ctx
;
904 struct si_shader_selector
*sel
= (struct si_shader_selector
*)state
;
906 if (sctx
->gs_shader
== sel
) {
907 sctx
->gs_shader
= NULL
;
910 si_delete_shader_selector(ctx
, sel
);
913 static void si_delete_ps_shader(struct pipe_context
*ctx
, void *state
)
915 struct si_context
*sctx
= (struct si_context
*)ctx
;
916 struct si_shader_selector
*sel
= (struct si_shader_selector
*)state
;
918 if (sctx
->ps_shader
== sel
) {
919 sctx
->ps_shader
= NULL
;
922 si_delete_shader_selector(ctx
, sel
);
925 static void si_delete_tcs_shader(struct pipe_context
*ctx
, void *state
)
927 struct si_context
*sctx
= (struct si_context
*)ctx
;
928 struct si_shader_selector
*sel
= (struct si_shader_selector
*)state
;
930 if (sctx
->tcs_shader
== sel
) {
931 sctx
->tcs_shader
= NULL
;
934 si_delete_shader_selector(ctx
, sel
);
937 static void si_delete_tes_shader(struct pipe_context
*ctx
, void *state
)
939 struct si_context
*sctx
= (struct si_context
*)ctx
;
940 struct si_shader_selector
*sel
= (struct si_shader_selector
*)state
;
942 if (sctx
->tes_shader
== sel
) {
943 sctx
->tes_shader
= NULL
;
946 si_delete_shader_selector(ctx
, sel
);
949 static void si_update_spi_map(struct si_context
*sctx
)
951 struct si_shader
*ps
= sctx
->ps_shader
->current
;
952 struct si_shader
*vs
= si_get_vs_state(sctx
);
953 struct tgsi_shader_info
*psinfo
= &ps
->selector
->info
;
954 struct tgsi_shader_info
*vsinfo
= &vs
->selector
->info
;
955 struct si_pm4_state
*pm4
= CALLOC_STRUCT(si_pm4_state
);
958 for (i
= 0; i
< psinfo
->num_inputs
; i
++) {
959 unsigned name
= psinfo
->input_semantic_name
[i
];
960 unsigned index
= psinfo
->input_semantic_index
[i
];
961 unsigned interpolate
= psinfo
->input_interpolate
[i
];
962 unsigned param_offset
= ps
->ps_input_param_offset
[i
];
964 if (name
== TGSI_SEMANTIC_POSITION
||
965 name
== TGSI_SEMANTIC_FACE
)
966 /* Read from preloaded VGPRs, not parameters */
972 if (interpolate
== TGSI_INTERPOLATE_CONSTANT
||
973 (interpolate
== TGSI_INTERPOLATE_COLOR
&& sctx
->flatshade
))
974 tmp
|= S_028644_FLAT_SHADE(1);
976 if (name
== TGSI_SEMANTIC_PCOORD
||
977 (name
== TGSI_SEMANTIC_TEXCOORD
&&
978 sctx
->sprite_coord_enable
& (1 << index
))) {
979 tmp
|= S_028644_PT_SPRITE_TEX(1);
982 for (j
= 0; j
< vsinfo
->num_outputs
; j
++) {
983 if (name
== vsinfo
->output_semantic_name
[j
] &&
984 index
== vsinfo
->output_semantic_index
[j
]) {
985 tmp
|= S_028644_OFFSET(vs
->vs_output_param_offset
[j
]);
990 if (name
== TGSI_SEMANTIC_PRIMID
)
991 /* PrimID is written after the last output. */
992 tmp
|= S_028644_OFFSET(vs
->vs_output_param_offset
[vsinfo
->num_outputs
]);
993 else if (j
== vsinfo
->num_outputs
&& !G_028644_PT_SPRITE_TEX(tmp
)) {
994 /* No corresponding output found, load defaults into input.
995 * Don't set any other bits.
996 * (FLAT_SHADE=1 completely changes behavior) */
997 tmp
= S_028644_OFFSET(0x20);
1001 R_028644_SPI_PS_INPUT_CNTL_0
+ param_offset
* 4,
1004 if (name
== TGSI_SEMANTIC_COLOR
&&
1005 ps
->key
.ps
.color_two_side
) {
1006 name
= TGSI_SEMANTIC_BCOLOR
;
1012 si_pm4_set_state(sctx
, spi
, pm4
);
1015 /* Initialize state related to ESGS / GSVS ring buffers */
1016 static void si_init_gs_rings(struct si_context
*sctx
)
1018 unsigned esgs_ring_size
= 128 * 1024;
1019 unsigned gsvs_ring_size
= 64 * 1024 * 1024;
1021 assert(!sctx
->gs_rings
);
1022 sctx
->gs_rings
= CALLOC_STRUCT(si_pm4_state
);
1024 sctx
->esgs_ring
= pipe_buffer_create(sctx
->b
.b
.screen
, PIPE_BIND_CUSTOM
,
1025 PIPE_USAGE_DEFAULT
, esgs_ring_size
);
1027 sctx
->gsvs_ring
= pipe_buffer_create(sctx
->b
.b
.screen
, PIPE_BIND_CUSTOM
,
1028 PIPE_USAGE_DEFAULT
, gsvs_ring_size
);
1030 if (sctx
->b
.chip_class
>= CIK
) {
1031 si_pm4_set_reg(sctx
->gs_rings
, R_030900_VGT_ESGS_RING_SIZE
,
1032 esgs_ring_size
/ 256);
1033 si_pm4_set_reg(sctx
->gs_rings
, R_030904_VGT_GSVS_RING_SIZE
,
1034 gsvs_ring_size
/ 256);
1036 si_pm4_set_reg(sctx
->gs_rings
, R_0088C8_VGT_ESGS_RING_SIZE
,
1037 esgs_ring_size
/ 256);
1038 si_pm4_set_reg(sctx
->gs_rings
, R_0088CC_VGT_GSVS_RING_SIZE
,
1039 gsvs_ring_size
/ 256);
1042 si_set_ring_buffer(&sctx
->b
.b
, PIPE_SHADER_VERTEX
, SI_RING_ESGS
,
1043 sctx
->esgs_ring
, 0, esgs_ring_size
,
1044 true, true, 4, 64, 0);
1045 si_set_ring_buffer(&sctx
->b
.b
, PIPE_SHADER_GEOMETRY
, SI_RING_ESGS
,
1046 sctx
->esgs_ring
, 0, esgs_ring_size
,
1047 false, false, 0, 0, 0);
1048 si_set_ring_buffer(&sctx
->b
.b
, PIPE_SHADER_VERTEX
, SI_RING_GSVS
,
1049 sctx
->gsvs_ring
, 0, gsvs_ring_size
,
1050 false, false, 0, 0, 0);
1053 static void si_update_gs_rings(struct si_context
*sctx
)
1055 unsigned gs_vert_itemsize
= sctx
->gs_shader
->info
.num_outputs
* 16;
1056 unsigned gs_max_vert_out
= sctx
->gs_shader
->gs_max_out_vertices
;
1057 unsigned gsvs_itemsize
= gs_vert_itemsize
* gs_max_vert_out
;
1060 si_set_ring_buffer(&sctx
->b
.b
, PIPE_SHADER_GEOMETRY
, SI_RING_GSVS
,
1061 sctx
->gsvs_ring
, gsvs_itemsize
,
1062 64, true, true, 4, 16, 0);
1064 offset
= gsvs_itemsize
* 64;
1065 si_set_ring_buffer(&sctx
->b
.b
, PIPE_SHADER_GEOMETRY
, SI_RING_GSVS_1
,
1066 sctx
->gsvs_ring
, gsvs_itemsize
,
1067 64, true, true, 4, 16, offset
);
1069 offset
= (gsvs_itemsize
* 2) * 64;
1070 si_set_ring_buffer(&sctx
->b
.b
, PIPE_SHADER_GEOMETRY
, SI_RING_GSVS_2
,
1071 sctx
->gsvs_ring
, gsvs_itemsize
,
1072 64, true, true, 4, 16, offset
);
1074 offset
= (gsvs_itemsize
* 3) * 64;
1075 si_set_ring_buffer(&sctx
->b
.b
, PIPE_SHADER_GEOMETRY
, SI_RING_GSVS_3
,
1076 sctx
->gsvs_ring
, gsvs_itemsize
,
1077 64, true, true, 4, 16, offset
);
1081 * @returns 1 if \p sel has been updated to use a new scratch buffer and 0
1084 static unsigned si_update_scratch_buffer(struct si_context
*sctx
,
1085 struct si_shader_selector
*sel
)
1087 struct si_shader
*shader
;
1088 uint64_t scratch_va
= sctx
->scratch_buffer
->gpu_address
;
1093 shader
= sel
->current
;
1095 /* This shader doesn't need a scratch buffer */
1096 if (shader
->scratch_bytes_per_wave
== 0)
1099 /* This shader is already configured to use the current
1100 * scratch buffer. */
1101 if (shader
->scratch_bo
== sctx
->scratch_buffer
)
1104 assert(sctx
->scratch_buffer
);
1106 si_shader_apply_scratch_relocs(sctx
, shader
, scratch_va
);
1108 /* Replace the shader bo with a new bo that has the relocs applied. */
1109 si_shader_binary_upload(sctx
->screen
, shader
);
1111 /* Update the shader state to use the new shader bo. */
1112 si_shader_init_pm4_state(shader
);
1114 r600_resource_reference(&shader
->scratch_bo
, sctx
->scratch_buffer
);
1119 static unsigned si_get_current_scratch_buffer_size(struct si_context
*sctx
)
1121 if (!sctx
->scratch_buffer
)
1124 return sctx
->scratch_buffer
->b
.b
.width0
;
1127 static unsigned si_get_scratch_buffer_bytes_per_wave(struct si_context
*sctx
,
1128 struct si_shader_selector
*sel
)
1133 return sel
->current
->scratch_bytes_per_wave
;
1136 static unsigned si_get_max_scratch_bytes_per_wave(struct si_context
*sctx
)
1140 bytes
= MAX2(bytes
, si_get_scratch_buffer_bytes_per_wave(sctx
, sctx
->ps_shader
));
1141 bytes
= MAX2(bytes
, si_get_scratch_buffer_bytes_per_wave(sctx
, sctx
->gs_shader
));
1142 bytes
= MAX2(bytes
, si_get_scratch_buffer_bytes_per_wave(sctx
, sctx
->vs_shader
));
1143 bytes
= MAX2(bytes
, si_get_scratch_buffer_bytes_per_wave(sctx
, sctx
->tcs_shader
));
1144 bytes
= MAX2(bytes
, si_get_scratch_buffer_bytes_per_wave(sctx
, sctx
->tes_shader
));
1148 static void si_update_spi_tmpring_size(struct si_context
*sctx
)
1150 unsigned current_scratch_buffer_size
=
1151 si_get_current_scratch_buffer_size(sctx
);
1152 unsigned scratch_bytes_per_wave
=
1153 si_get_max_scratch_bytes_per_wave(sctx
);
1154 unsigned scratch_needed_size
= scratch_bytes_per_wave
*
1155 sctx
->scratch_waves
;
1157 if (scratch_needed_size
> 0) {
1159 if (scratch_needed_size
> current_scratch_buffer_size
) {
1160 /* Create a bigger scratch buffer */
1161 pipe_resource_reference(
1162 (struct pipe_resource
**)&sctx
->scratch_buffer
,
1165 sctx
->scratch_buffer
=
1166 si_resource_create_custom(&sctx
->screen
->b
.b
,
1167 PIPE_USAGE_DEFAULT
, scratch_needed_size
);
1170 /* Update the shaders, so they are using the latest scratch. The
1171 * scratch buffer may have been changed since these shaders were
1172 * last used, so we still need to try to update them, even if
1173 * they require scratch buffers smaller than the current size.
1175 if (si_update_scratch_buffer(sctx
, sctx
->ps_shader
))
1176 si_pm4_bind_state(sctx
, ps
, sctx
->ps_shader
->current
->pm4
);
1177 if (si_update_scratch_buffer(sctx
, sctx
->gs_shader
))
1178 si_pm4_bind_state(sctx
, gs
, sctx
->gs_shader
->current
->pm4
);
1179 if (si_update_scratch_buffer(sctx
, sctx
->tcs_shader
))
1180 si_pm4_bind_state(sctx
, hs
, sctx
->tcs_shader
->current
->pm4
);
1182 /* VS can be bound as LS, ES, or VS. */
1183 if (sctx
->tes_shader
) {
1184 if (si_update_scratch_buffer(sctx
, sctx
->vs_shader
))
1185 si_pm4_bind_state(sctx
, ls
, sctx
->vs_shader
->current
->pm4
);
1186 } else if (sctx
->gs_shader
) {
1187 if (si_update_scratch_buffer(sctx
, sctx
->vs_shader
))
1188 si_pm4_bind_state(sctx
, es
, sctx
->vs_shader
->current
->pm4
);
1190 if (si_update_scratch_buffer(sctx
, sctx
->vs_shader
))
1191 si_pm4_bind_state(sctx
, vs
, sctx
->vs_shader
->current
->pm4
);
1194 /* TES can be bound as ES or VS. */
1195 if (sctx
->gs_shader
) {
1196 if (si_update_scratch_buffer(sctx
, sctx
->tes_shader
))
1197 si_pm4_bind_state(sctx
, es
, sctx
->tes_shader
->current
->pm4
);
1199 if (si_update_scratch_buffer(sctx
, sctx
->tes_shader
))
1200 si_pm4_bind_state(sctx
, vs
, sctx
->tes_shader
->current
->pm4
);
1204 /* The LLVM shader backend should be reporting aligned scratch_sizes. */
1205 assert((scratch_needed_size
& ~0x3FF) == scratch_needed_size
&&
1206 "scratch size should already be aligned correctly.");
1208 sctx
->spi_tmpring_size
= S_0286E8_WAVES(sctx
->scratch_waves
) |
1209 S_0286E8_WAVESIZE(scratch_bytes_per_wave
>> 10);
1212 static void si_init_tess_factor_ring(struct si_context
*sctx
)
1214 assert(!sctx
->tf_state
);
1215 sctx
->tf_state
= CALLOC_STRUCT(si_pm4_state
);
1217 sctx
->tf_ring
= pipe_buffer_create(sctx
->b
.b
.screen
, PIPE_BIND_CUSTOM
,
1219 32768 * sctx
->screen
->b
.info
.max_se
);
1220 sctx
->b
.clear_buffer(&sctx
->b
.b
, sctx
->tf_ring
, 0,
1221 sctx
->tf_ring
->width0
, fui(0), false);
1222 assert(((sctx
->tf_ring
->width0
/ 4) & C_030938_SIZE
) == 0);
1224 if (sctx
->b
.chip_class
>= CIK
) {
1225 si_pm4_set_reg(sctx
->tf_state
, R_030938_VGT_TF_RING_SIZE
,
1226 S_030938_SIZE(sctx
->tf_ring
->width0
/ 4));
1227 si_pm4_set_reg(sctx
->tf_state
, R_030940_VGT_TF_MEMORY_BASE
,
1228 r600_resource(sctx
->tf_ring
)->gpu_address
>> 8);
1230 si_pm4_set_reg(sctx
->tf_state
, R_008988_VGT_TF_RING_SIZE
,
1231 S_008988_SIZE(sctx
->tf_ring
->width0
/ 4));
1232 si_pm4_set_reg(sctx
->tf_state
, R_0089B8_VGT_TF_MEMORY_BASE
,
1233 r600_resource(sctx
->tf_ring
)->gpu_address
>> 8);
1235 si_pm4_add_bo(sctx
->tf_state
, r600_resource(sctx
->tf_ring
),
1236 RADEON_USAGE_READWRITE
, RADEON_PRIO_SHADER_RESOURCE_RW
);
1237 si_pm4_bind_state(sctx
, tf_ring
, sctx
->tf_state
);
1239 si_set_ring_buffer(&sctx
->b
.b
, PIPE_SHADER_TESS_CTRL
,
1240 SI_RING_TESS_FACTOR
, sctx
->tf_ring
, 0,
1241 sctx
->tf_ring
->width0
, false, false, 0, 0, 0);
1243 sctx
->b
.flags
|= SI_CONTEXT_VGT_FLUSH
;
1247 * This is used when TCS is NULL in the VS->TCS->TES chain. In this case,
1248 * VS passes its outputs to TES directly, so the fixed-function shader only
1249 * has to write TESSOUTER and TESSINNER.
1251 static void si_generate_fixed_func_tcs(struct si_context
*sctx
)
1253 struct ureg_src const0
, const1
;
1254 struct ureg_dst tessouter
, tessinner
;
1255 struct ureg_program
*ureg
= ureg_create(TGSI_PROCESSOR_TESS_CTRL
);
1258 return; /* if we get here, we're screwed */
1260 assert(!sctx
->fixed_func_tcs_shader
);
1262 ureg_DECL_constant2D(ureg
, 0, 1, SI_DRIVER_STATE_CONST_BUF
);
1263 const0
= ureg_src_dimension(ureg_src_register(TGSI_FILE_CONSTANT
, 0),
1264 SI_DRIVER_STATE_CONST_BUF
);
1265 const1
= ureg_src_dimension(ureg_src_register(TGSI_FILE_CONSTANT
, 1),
1266 SI_DRIVER_STATE_CONST_BUF
);
1268 tessouter
= ureg_DECL_output(ureg
, TGSI_SEMANTIC_TESSOUTER
, 0);
1269 tessinner
= ureg_DECL_output(ureg
, TGSI_SEMANTIC_TESSINNER
, 0);
1271 ureg_MOV(ureg
, tessouter
, const0
);
1272 ureg_MOV(ureg
, tessinner
, const1
);
1275 sctx
->fixed_func_tcs_shader
=
1276 ureg_create_shader_and_destroy(ureg
, &sctx
->b
.b
);
1277 assert(sctx
->fixed_func_tcs_shader
);
1280 static void si_update_vgt_shader_config(struct si_context
*sctx
)
1282 /* Calculate the index of the config.
1283 * 0 = VS, 1 = VS+GS, 2 = VS+Tess, 3 = VS+Tess+GS */
1284 unsigned index
= 2*!!sctx
->tes_shader
+ !!sctx
->gs_shader
;
1285 struct si_pm4_state
**pm4
= &sctx
->vgt_shader_config
[index
];
1288 uint32_t stages
= 0;
1290 *pm4
= CALLOC_STRUCT(si_pm4_state
);
1292 if (sctx
->tes_shader
) {
1293 stages
|= S_028B54_LS_EN(V_028B54_LS_STAGE_ON
) |
1296 if (sctx
->gs_shader
)
1297 stages
|= S_028B54_ES_EN(V_028B54_ES_STAGE_DS
) |
1299 S_028B54_VS_EN(V_028B54_VS_STAGE_COPY_SHADER
);
1301 stages
|= S_028B54_VS_EN(V_028B54_VS_STAGE_DS
);
1302 } else if (sctx
->gs_shader
) {
1303 stages
|= S_028B54_ES_EN(V_028B54_ES_STAGE_REAL
) |
1305 S_028B54_VS_EN(V_028B54_VS_STAGE_COPY_SHADER
);
1308 si_pm4_set_reg(*pm4
, R_028B54_VGT_SHADER_STAGES_EN
, stages
);
1310 si_pm4_bind_state(sctx
, vgt_shader_config
, *pm4
);
1313 static void si_update_so(struct si_context
*sctx
, struct si_shader_selector
*shader
)
1315 struct pipe_stream_output_info
*so
= &shader
->so
;
1316 uint32_t enabled_stream_buffers_mask
= 0;
1319 for (i
= 0; i
< so
->num_outputs
; i
++)
1320 enabled_stream_buffers_mask
|= (1 << so
->output
[i
].output_buffer
) << (so
->output
[i
].stream
* 4);
1321 sctx
->b
.streamout
.enabled_stream_buffers_mask
= enabled_stream_buffers_mask
;
1322 sctx
->b
.streamout
.stride_in_dw
= shader
->so
.stride
;
1325 void si_update_shaders(struct si_context
*sctx
)
1327 struct pipe_context
*ctx
= (struct pipe_context
*)sctx
;
1328 struct si_state_rasterizer
*rs
= sctx
->queued
.named
.rasterizer
;
1330 /* Update stages before GS. */
1331 if (sctx
->tes_shader
) {
1332 if (!sctx
->tf_state
)
1333 si_init_tess_factor_ring(sctx
);
1336 si_shader_select(ctx
, sctx
->vs_shader
);
1337 si_pm4_bind_state(sctx
, ls
, sctx
->vs_shader
->current
->pm4
);
1339 if (sctx
->tcs_shader
) {
1340 si_shader_select(ctx
, sctx
->tcs_shader
);
1341 si_pm4_bind_state(sctx
, hs
, sctx
->tcs_shader
->current
->pm4
);
1343 if (!sctx
->fixed_func_tcs_shader
)
1344 si_generate_fixed_func_tcs(sctx
);
1345 si_shader_select(ctx
, sctx
->fixed_func_tcs_shader
);
1346 si_pm4_bind_state(sctx
, hs
,
1347 sctx
->fixed_func_tcs_shader
->current
->pm4
);
1350 si_shader_select(ctx
, sctx
->tes_shader
);
1351 if (sctx
->gs_shader
) {
1353 si_pm4_bind_state(sctx
, es
, sctx
->tes_shader
->current
->pm4
);
1356 si_pm4_bind_state(sctx
, vs
, sctx
->tes_shader
->current
->pm4
);
1357 si_update_so(sctx
, sctx
->tes_shader
);
1359 } else if (sctx
->gs_shader
) {
1361 si_shader_select(ctx
, sctx
->vs_shader
);
1362 si_pm4_bind_state(sctx
, es
, sctx
->vs_shader
->current
->pm4
);
1365 si_shader_select(ctx
, sctx
->vs_shader
);
1366 si_pm4_bind_state(sctx
, vs
, sctx
->vs_shader
->current
->pm4
);
1367 si_update_so(sctx
, sctx
->vs_shader
);
1371 if (sctx
->gs_shader
) {
1372 si_shader_select(ctx
, sctx
->gs_shader
);
1373 si_pm4_bind_state(sctx
, gs
, sctx
->gs_shader
->current
->pm4
);
1374 si_pm4_bind_state(sctx
, vs
, sctx
->gs_shader
->current
->gs_copy_shader
->pm4
);
1375 si_update_so(sctx
, sctx
->gs_shader
);
1377 if (!sctx
->gs_rings
)
1378 si_init_gs_rings(sctx
);
1380 if (sctx
->emitted
.named
.gs_rings
!= sctx
->gs_rings
)
1381 sctx
->b
.flags
|= SI_CONTEXT_VGT_FLUSH
;
1382 si_pm4_bind_state(sctx
, gs_rings
, sctx
->gs_rings
);
1384 si_update_gs_rings(sctx
);
1386 si_pm4_bind_state(sctx
, gs_rings
, NULL
);
1387 si_pm4_bind_state(sctx
, gs
, NULL
);
1388 si_pm4_bind_state(sctx
, es
, NULL
);
1391 si_update_vgt_shader_config(sctx
);
1393 si_shader_select(ctx
, sctx
->ps_shader
);
1395 if (!sctx
->ps_shader
->current
) {
1396 struct si_shader_selector
*sel
;
1398 /* use a dummy shader if compiling the shader (variant) failed */
1399 si_make_dummy_ps(sctx
);
1400 sel
= sctx
->dummy_pixel_shader
;
1401 si_shader_select(ctx
, sel
);
1402 sctx
->ps_shader
->current
= sel
->current
;
1405 si_pm4_bind_state(sctx
, ps
, sctx
->ps_shader
->current
->pm4
);
1407 if (si_pm4_state_changed(sctx
, ps
) || si_pm4_state_changed(sctx
, vs
) ||
1408 sctx
->sprite_coord_enable
!= rs
->sprite_coord_enable
||
1409 sctx
->flatshade
!= rs
->flatshade
) {
1410 sctx
->sprite_coord_enable
= rs
->sprite_coord_enable
;
1411 sctx
->flatshade
= rs
->flatshade
;
1412 si_update_spi_map(sctx
);
1415 if (si_pm4_state_changed(sctx
, ps
) || si_pm4_state_changed(sctx
, vs
) ||
1416 si_pm4_state_changed(sctx
, gs
)) {
1417 si_update_spi_tmpring_size(sctx
);
1420 if (sctx
->ps_db_shader_control
!= sctx
->ps_shader
->current
->db_shader_control
) {
1421 sctx
->ps_db_shader_control
= sctx
->ps_shader
->current
->db_shader_control
;
1422 si_mark_atom_dirty(sctx
, &sctx
->db_render_state
);
1425 if (sctx
->smoothing_enabled
!= sctx
->ps_shader
->current
->key
.ps
.poly_line_smoothing
) {
1426 sctx
->smoothing_enabled
= sctx
->ps_shader
->current
->key
.ps
.poly_line_smoothing
;
1427 si_mark_atom_dirty(sctx
, &sctx
->msaa_config
);
1429 if (sctx
->b
.chip_class
== SI
)
1430 si_mark_atom_dirty(sctx
, &sctx
->db_render_state
);
1434 void si_init_shader_functions(struct si_context
*sctx
)
1436 sctx
->b
.b
.create_vs_state
= si_create_vs_state
;
1437 sctx
->b
.b
.create_tcs_state
= si_create_tcs_state
;
1438 sctx
->b
.b
.create_tes_state
= si_create_tes_state
;
1439 sctx
->b
.b
.create_gs_state
= si_create_gs_state
;
1440 sctx
->b
.b
.create_fs_state
= si_create_fs_state
;
1442 sctx
->b
.b
.bind_vs_state
= si_bind_vs_shader
;
1443 sctx
->b
.b
.bind_tcs_state
= si_bind_tcs_shader
;
1444 sctx
->b
.b
.bind_tes_state
= si_bind_tes_shader
;
1445 sctx
->b
.b
.bind_gs_state
= si_bind_gs_shader
;
1446 sctx
->b
.b
.bind_fs_state
= si_bind_ps_shader
;
1448 sctx
->b
.b
.delete_vs_state
= si_delete_vs_shader
;
1449 sctx
->b
.b
.delete_tcs_state
= si_delete_tcs_shader
;
1450 sctx
->b
.b
.delete_tes_state
= si_delete_tes_shader
;
1451 sctx
->b
.b
.delete_gs_state
= si_delete_gs_shader
;
1452 sctx
->b
.b
.delete_fs_state
= si_delete_ps_shader
;