2 * Copyright © 2014 Intel Corporation
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 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * 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 NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
27 * Tessellation evaluation shader state upload code.
30 #include "brw_context.h"
31 #include "compiler/brw_nir.h"
32 #include "brw_program.h"
33 #include "brw_state.h"
34 #include "program/prog_parameter.h"
37 brw_tes_debug_recompile(struct brw_context
*brw
, struct gl_program
*prog
,
38 const struct brw_tes_prog_key
*key
)
40 perf_debug("Recompiling tessellation evaluation shader for program %d\n",
44 const struct brw_tes_prog_key
*old_key
=
45 brw_find_previous_compile(&brw
->cache
, BRW_CACHE_TES_PROG
,
46 key
->program_string_id
);
49 perf_debug(" Didn't find previous compile in the shader cache for "
54 found
|= brw_debug_recompile_sampler_key(brw
, &old_key
->tex
, &key
->tex
);
55 found
|= key_debug(brw
, "inputs read", old_key
->inputs_read
,
57 found
|= key_debug(brw
, "patch inputs read", old_key
->patch_inputs_read
,
58 key
->patch_inputs_read
);
61 perf_debug(" Something else\n");
66 brw_codegen_tes_prog(struct brw_context
*brw
,
67 struct brw_program
*tep
,
68 struct brw_tes_prog_key
*key
)
70 const struct brw_compiler
*compiler
= brw
->screen
->compiler
;
71 const struct gen_device_info
*devinfo
= &brw
->screen
->devinfo
;
72 struct brw_stage_state
*stage_state
= &brw
->tes
.base
;
73 nir_shader
*nir
= tep
->program
.nir
;
74 struct brw_tes_prog_data prog_data
;
75 bool start_busy
= false;
76 double start_time
= 0;
78 memset(&prog_data
, 0, sizeof(prog_data
));
80 void *mem_ctx
= ralloc_context(NULL
);
82 brw_assign_common_binding_table_offsets(devinfo
, &tep
->program
,
83 &prog_data
.base
.base
, 0);
85 brw_nir_setup_glsl_uniforms(mem_ctx
, nir
, &tep
->program
,
87 compiler
->scalar_stage
[MESA_SHADER_TESS_EVAL
]);
88 brw_nir_analyze_ubo_ranges(compiler
, tep
->program
.nir
,
89 prog_data
.base
.base
.ubo_ranges
);
92 if (unlikely(INTEL_DEBUG
& DEBUG_SHADER_TIME
))
93 st_index
= brw_get_shader_time_index(brw
, &tep
->program
, ST_TES
, true);
95 if (unlikely(brw
->perf_debug
)) {
96 start_busy
= brw
->batch
.last_bo
&& brw_bo_busy(brw
->batch
.last_bo
);
97 start_time
= get_time();
100 struct brw_vue_map input_vue_map
;
101 brw_compute_tess_vue_map(&input_vue_map
, key
->inputs_read
,
102 key
->patch_inputs_read
);
104 unsigned program_size
;
106 const unsigned *program
=
107 brw_compile_tes(compiler
, brw
, mem_ctx
, key
, &input_vue_map
, &prog_data
,
108 nir
, &tep
->program
, st_index
, &program_size
, &error_str
);
109 if (program
== NULL
) {
110 tep
->program
.sh
.data
->LinkStatus
= linking_failure
;
111 ralloc_strcat(&tep
->program
.sh
.data
->InfoLog
, error_str
);
113 _mesa_problem(NULL
, "Failed to compile tessellation evaluation shader: "
116 ralloc_free(mem_ctx
);
120 if (unlikely(brw
->perf_debug
)) {
121 if (tep
->compiled_once
) {
122 brw_tes_debug_recompile(brw
, &tep
->program
, key
);
124 if (start_busy
&& !brw_bo_busy(brw
->batch
.last_bo
)) {
125 perf_debug("TES compile took %.03f ms and stalled the GPU\n",
126 (get_time() - start_time
) * 1000);
128 tep
->compiled_once
= true;
131 /* Scratch space is used for register spilling */
132 brw_alloc_stage_scratch(brw
, stage_state
,
133 prog_data
.base
.base
.total_scratch
,
134 devinfo
->max_tes_threads
);
136 /* The param and pull_param arrays will be freed by the shader cache. */
137 ralloc_steal(NULL
, prog_data
.base
.base
.param
);
138 ralloc_steal(NULL
, prog_data
.base
.base
.pull_param
);
139 brw_upload_cache(&brw
->cache
, BRW_CACHE_TES_PROG
,
141 program
, program_size
,
142 &prog_data
, sizeof(prog_data
),
143 &stage_state
->prog_offset
, &brw
->tes
.base
.prog_data
);
144 ralloc_free(mem_ctx
);
150 brw_tes_populate_key(struct brw_context
*brw
,
151 struct brw_tes_prog_key
*key
)
153 struct brw_program
*tcp
=
154 (struct brw_program
*) brw
->programs
[MESA_SHADER_TESS_CTRL
];
155 struct brw_program
*tep
=
156 (struct brw_program
*) brw
->programs
[MESA_SHADER_TESS_EVAL
];
157 struct gl_program
*prog
= &tep
->program
;
159 uint64_t per_vertex_slots
= prog
->info
.inputs_read
;
160 uint32_t per_patch_slots
= prog
->info
.patch_inputs_read
;
162 memset(key
, 0, sizeof(*key
));
164 key
->program_string_id
= tep
->id
;
166 /* The TCS may have additional outputs which aren't read by the
167 * TES (possibly for cross-thread communication). These need to
168 * be stored in the Patch URB Entry as well.
171 struct gl_program
*tcp_prog
= &tcp
->program
;
172 per_vertex_slots
|= tcp_prog
->info
.outputs_written
&
173 ~(VARYING_BIT_TESS_LEVEL_INNER
| VARYING_BIT_TESS_LEVEL_OUTER
);
174 per_patch_slots
|= tcp_prog
->info
.patch_outputs_written
;
177 key
->inputs_read
= per_vertex_slots
;
178 key
->patch_inputs_read
= per_patch_slots
;
181 brw_populate_sampler_prog_key_data(&brw
->ctx
, prog
, &key
->tex
);
185 brw_upload_tes_prog(struct brw_context
*brw
)
187 struct brw_stage_state
*stage_state
= &brw
->tes
.base
;
188 struct brw_tes_prog_key key
;
189 /* BRW_NEW_TESS_PROGRAMS */
190 struct brw_program
*tep
=
191 (struct brw_program
*) brw
->programs
[MESA_SHADER_TESS_EVAL
];
193 if (!brw_state_dirty(brw
,
195 BRW_NEW_TESS_PROGRAMS
))
198 brw_tes_populate_key(brw
, &key
);
200 if (!brw_search_cache(&brw
->cache
, BRW_CACHE_TES_PROG
,
202 &stage_state
->prog_offset
,
203 &brw
->tes
.base
.prog_data
)) {
204 bool success
= brw_codegen_tes_prog(brw
, tep
, &key
);
212 brw_tes_precompile(struct gl_context
*ctx
,
213 struct gl_shader_program
*shader_prog
,
214 struct gl_program
*prog
)
216 struct brw_context
*brw
= brw_context(ctx
);
217 struct brw_tes_prog_key key
;
218 uint32_t old_prog_offset
= brw
->tes
.base
.prog_offset
;
219 struct brw_stage_prog_data
*old_prog_data
= brw
->tes
.base
.prog_data
;
222 struct brw_program
*btep
= brw_program(prog
);
224 memset(&key
, 0, sizeof(key
));
226 key
.program_string_id
= btep
->id
;
227 key
.inputs_read
= prog
->nir
->info
.inputs_read
;
228 key
.patch_inputs_read
= prog
->nir
->info
.patch_inputs_read
;
230 if (shader_prog
->_LinkedShaders
[MESA_SHADER_TESS_CTRL
]) {
231 struct gl_program
*tcp
=
232 shader_prog
->_LinkedShaders
[MESA_SHADER_TESS_CTRL
]->Program
;
233 key
.inputs_read
|= tcp
->nir
->info
.outputs_written
&
234 ~(VARYING_BIT_TESS_LEVEL_INNER
| VARYING_BIT_TESS_LEVEL_OUTER
);
235 key
.patch_inputs_read
|= tcp
->nir
->info
.patch_outputs_written
;
238 brw_setup_tex_for_precompile(brw
, &key
.tex
, prog
);
240 success
= brw_codegen_tes_prog(brw
, btep
, &key
);
242 brw
->tes
.base
.prog_offset
= old_prog_offset
;
243 brw
->tes
.base
.prog_data
= old_prog_data
;