2 * Copyright © 2013 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 * State atom for client-programmable geometry shaders, and support code.
31 #include "brw_context.h"
32 #include "brw_state.h"
33 #include "brw_ff_gs.h"
34 #include "compiler/brw_nir.h"
35 #include "brw_program.h"
36 #include "compiler/glsl/ir_uniform.h"
39 brw_gs_debug_recompile(struct brw_context
*brw
, struct gl_program
*prog
,
40 const struct brw_gs_prog_key
*key
)
42 perf_debug("Recompiling geometry shader for program %d\n", prog
->Id
);
45 const struct brw_gs_prog_key
*old_key
=
46 brw_find_previous_compile(&brw
->cache
, BRW_CACHE_GS_PROG
,
47 key
->program_string_id
);
50 perf_debug(" Didn't find previous compile in the shader cache for "
55 found
|= brw_debug_recompile_sampler_key(brw
, &old_key
->tex
, &key
->tex
);
58 perf_debug(" Something else\n");
63 assign_gs_binding_table_offsets(const struct gen_device_info
*devinfo
,
64 const struct gl_program
*prog
,
65 struct brw_gs_prog_data
*prog_data
)
67 /* In gen6 we reserve the first BRW_MAX_SOL_BINDINGS entries for transform
70 uint32_t reserved
= devinfo
->gen
== 6 ? BRW_MAX_SOL_BINDINGS
: 0;
72 brw_assign_common_binding_table_offsets(devinfo
, prog
,
73 &prog_data
->base
.base
, reserved
);
77 brw_codegen_gs_prog(struct brw_context
*brw
,
78 struct brw_program
*gp
,
79 struct brw_gs_prog_key
*key
)
81 struct brw_compiler
*compiler
= brw
->screen
->compiler
;
82 const struct gen_device_info
*devinfo
= &brw
->screen
->devinfo
;
83 struct brw_stage_state
*stage_state
= &brw
->gs
.base
;
84 struct brw_gs_prog_data prog_data
;
85 bool start_busy
= false;
86 double start_time
= 0;
88 memset(&prog_data
, 0, sizeof(prog_data
));
90 assign_gs_binding_table_offsets(devinfo
, &gp
->program
, &prog_data
);
92 /* Allocate the references to the uniforms that will end up in the
93 * prog_data associated with the compiled program, and which will be freed
96 * Note: param_count needs to be num_uniform_components * 4, since we add
97 * padding around uniform values below vec4 size, so the worst case is that
98 * every uniform is a float which gets padded to the size of a vec4.
100 int param_count
= gp
->program
.nir
->num_uniforms
/ 4;
102 prog_data
.base
.base
.param
= rzalloc_array(NULL
, uint32_t, param_count
);
103 prog_data
.base
.base
.pull_param
= rzalloc_array(NULL
, uint32_t, param_count
);
104 prog_data
.base
.base
.image_param
=
105 rzalloc_array(NULL
, struct brw_image_param
,
106 gp
->program
.info
.num_images
);
107 prog_data
.base
.base
.nr_params
= param_count
;
108 prog_data
.base
.base
.nr_image_params
= gp
->program
.info
.num_images
;
110 brw_nir_setup_glsl_uniforms(gp
->program
.nir
, &gp
->program
,
111 &prog_data
.base
.base
,
112 compiler
->scalar_stage
[MESA_SHADER_GEOMETRY
]);
113 brw_nir_analyze_ubo_ranges(compiler
, gp
->program
.nir
,
114 prog_data
.base
.base
.ubo_ranges
);
116 uint64_t outputs_written
= gp
->program
.nir
->info
.outputs_written
;
118 brw_compute_vue_map(devinfo
,
119 &prog_data
.base
.vue_map
, outputs_written
,
120 gp
->program
.info
.separate_shader
);
123 if (INTEL_DEBUG
& DEBUG_SHADER_TIME
)
124 st_index
= brw_get_shader_time_index(brw
, &gp
->program
, ST_GS
, true);
126 if (unlikely(brw
->perf_debug
)) {
127 start_busy
= brw
->batch
.last_bo
&& brw_bo_busy(brw
->batch
.last_bo
);
128 start_time
= get_time();
131 void *mem_ctx
= ralloc_context(NULL
);
132 unsigned program_size
;
134 const unsigned *program
=
135 brw_compile_gs(brw
->screen
->compiler
, brw
, mem_ctx
, key
,
136 &prog_data
, gp
->program
.nir
, &gp
->program
,
137 st_index
, &program_size
, &error_str
);
138 if (program
== NULL
) {
139 ralloc_strcat(&gp
->program
.sh
.data
->InfoLog
, error_str
);
140 _mesa_problem(NULL
, "Failed to compile geometry shader: %s\n", error_str
);
142 ralloc_free(mem_ctx
);
146 if (unlikely(brw
->perf_debug
)) {
147 if (gp
->compiled_once
) {
148 brw_gs_debug_recompile(brw
, &gp
->program
, key
);
150 if (start_busy
&& !brw_bo_busy(brw
->batch
.last_bo
)) {
151 perf_debug("GS compile took %.03f ms and stalled the GPU\n",
152 (get_time() - start_time
) * 1000);
154 gp
->compiled_once
= true;
157 /* Scratch space is used for register spilling */
158 brw_alloc_stage_scratch(brw
, stage_state
,
159 prog_data
.base
.base
.total_scratch
,
160 devinfo
->max_gs_threads
);
162 brw_upload_cache(&brw
->cache
, BRW_CACHE_GS_PROG
,
164 program
, program_size
,
165 &prog_data
, sizeof(prog_data
),
166 &stage_state
->prog_offset
, &brw
->gs
.base
.prog_data
);
167 ralloc_free(mem_ctx
);
173 brw_gs_state_dirty(const struct brw_context
*brw
)
175 return brw_state_dirty(brw
,
177 BRW_NEW_GEOMETRY_PROGRAM
|
178 BRW_NEW_TRANSFORM_FEEDBACK
);
182 brw_gs_populate_key(struct brw_context
*brw
,
183 struct brw_gs_prog_key
*key
)
185 struct gl_context
*ctx
= &brw
->ctx
;
186 struct brw_program
*gp
=
187 (struct brw_program
*) brw
->programs
[MESA_SHADER_GEOMETRY
];
189 memset(key
, 0, sizeof(*key
));
191 key
->program_string_id
= gp
->id
;
194 brw_populate_sampler_prog_key_data(ctx
, &gp
->program
, &key
->tex
);
198 brw_upload_gs_prog(struct brw_context
*brw
)
200 struct brw_stage_state
*stage_state
= &brw
->gs
.base
;
201 struct brw_gs_prog_key key
;
202 /* BRW_NEW_GEOMETRY_PROGRAM */
203 struct brw_program
*gp
=
204 (struct brw_program
*) brw
->programs
[MESA_SHADER_GEOMETRY
];
206 if (!brw_gs_state_dirty(brw
))
209 brw_gs_populate_key(brw
, &key
);
211 if (!brw_search_cache(&brw
->cache
, BRW_CACHE_GS_PROG
,
213 &stage_state
->prog_offset
,
214 &brw
->gs
.base
.prog_data
)) {
215 bool success
= brw_codegen_gs_prog(brw
, gp
, &key
);
222 brw_gs_precompile(struct gl_context
*ctx
, struct gl_program
*prog
)
224 struct brw_context
*brw
= brw_context(ctx
);
225 struct brw_gs_prog_key key
;
226 uint32_t old_prog_offset
= brw
->gs
.base
.prog_offset
;
227 struct brw_stage_prog_data
*old_prog_data
= brw
->gs
.base
.prog_data
;
230 struct brw_program
*bgp
= brw_program(prog
);
232 memset(&key
, 0, sizeof(key
));
234 brw_setup_tex_for_precompile(brw
, &key
.tex
, prog
);
235 key
.program_string_id
= bgp
->id
;
237 success
= brw_codegen_gs_prog(brw
, bgp
, &key
);
239 brw
->gs
.base
.prog_offset
= old_prog_offset
;
240 brw
->gs
.base
.prog_data
= old_prog_data
;