2 * Copyright (c) 2014 - 2015 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.
24 #include "util/ralloc.h"
25 #include "brw_context.h"
28 #include "intel_mipmap_tree.h"
29 #include "brw_state.h"
30 #include "intel_batchbuffer.h"
31 #include "compiler/brw_nir.h"
32 #include "brw_program.h"
33 #include "compiler/glsl/ir_uniform.h"
35 struct brw_cs_parameters
36 brw_cs_get_parameters(const struct brw_context
*brw
)
38 assert(brw
->cs
.base
.prog_data
);
39 struct brw_cs_prog_data
*cs_prog_data
=
40 brw_cs_prog_data(brw
->cs
.base
.prog_data
);
42 struct brw_cs_parameters params
= {};
44 if (brw
->compute
.group_size
) {
45 /* With ARB_compute_variable_group_size the group size is set at
46 * dispatch time, so we can't use the one provided by the compiler.
48 params
.group_size
= brw
->compute
.group_size
[0] *
49 brw
->compute
.group_size
[1] *
50 brw
->compute
.group_size
[2];
52 params
.group_size
= cs_prog_data
->local_size
[0] *
53 cs_prog_data
->local_size
[1] *
54 cs_prog_data
->local_size
[2];
58 brw_cs_simd_size_for_group_size(&brw
->screen
->devinfo
,
59 cs_prog_data
, params
.group_size
);
60 params
.threads
= DIV_ROUND_UP(params
.group_size
, params
.simd_size
);
66 assign_cs_binding_table_offsets(const struct gen_device_info
*devinfo
,
67 const struct gl_program
*prog
,
68 struct brw_cs_prog_data
*prog_data
)
70 uint32_t next_binding_table_offset
= 0;
72 /* May not be used if the gl_NumWorkGroups variable is not accessed. */
73 prog_data
->binding_table
.work_groups_start
= next_binding_table_offset
;
74 next_binding_table_offset
++;
76 brw_assign_common_binding_table_offsets(devinfo
, prog
, &prog_data
->base
,
77 next_binding_table_offset
);
81 brw_codegen_cs_prog(struct brw_context
*brw
,
82 struct brw_program
*cp
,
83 struct brw_cs_prog_key
*key
)
85 const struct gen_device_info
*devinfo
= &brw
->screen
->devinfo
;
86 const GLuint
*program
;
87 void *mem_ctx
= ralloc_context(NULL
);
88 struct brw_cs_prog_data prog_data
;
89 bool start_busy
= false;
90 double start_time
= 0;
91 nir_shader
*nir
= nir_shader_clone(mem_ctx
, cp
->program
.nir
);
93 memset(&prog_data
, 0, sizeof(prog_data
));
95 if (cp
->program
.info
.cs
.shared_size
> 64 * 1024) {
96 cp
->program
.sh
.data
->LinkStatus
= LINKING_FAILURE
;
97 const char *error_str
=
98 "Compute shader used more than 64KB of shared variables";
99 ralloc_strcat(&cp
->program
.sh
.data
->InfoLog
, error_str
);
100 _mesa_problem(NULL
, "Failed to link compute shader: %s\n", error_str
);
102 ralloc_free(mem_ctx
);
106 assign_cs_binding_table_offsets(devinfo
, &cp
->program
, &prog_data
);
108 brw_nir_setup_glsl_uniforms(mem_ctx
, nir
,
109 &cp
->program
, &prog_data
.base
, true);
111 if (unlikely(brw
->perf_debug
)) {
112 start_busy
= (brw
->batch
.last_bo
&&
113 brw_bo_busy(brw
->batch
.last_bo
));
114 start_time
= get_time();
118 if (INTEL_DEBUG
& DEBUG_SHADER_TIME
)
119 st_index
= brw_get_shader_time_index(brw
, &cp
->program
, ST_CS
, true);
121 brw_nir_lower_cs_intrinsics(nir
);
124 program
= brw_compile_cs(brw
->screen
->compiler
, brw
, mem_ctx
, key
,
125 &prog_data
, nir
, st_index
, NULL
, &error_str
);
126 if (program
== NULL
) {
127 cp
->program
.sh
.data
->LinkStatus
= LINKING_FAILURE
;
128 ralloc_strcat(&cp
->program
.sh
.data
->InfoLog
, error_str
);
129 _mesa_problem(NULL
, "Failed to compile compute shader: %s\n", error_str
);
131 ralloc_free(mem_ctx
);
135 if (unlikely(brw
->perf_debug
)) {
136 if (cp
->compiled_once
) {
137 brw_debug_recompile(brw
, MESA_SHADER_COMPUTE
, cp
->program
.Id
,
140 cp
->compiled_once
= true;
142 if (start_busy
&& !brw_bo_busy(brw
->batch
.last_bo
)) {
143 perf_debug("CS compile took %.03f ms and stalled the GPU\n",
144 (get_time() - start_time
) * 1000);
148 brw_alloc_stage_scratch(brw
, &brw
->cs
.base
, prog_data
.base
.total_scratch
);
150 /* The param and pull_param arrays will be freed by the shader cache. */
151 ralloc_steal(NULL
, prog_data
.base
.param
);
152 ralloc_steal(NULL
, prog_data
.base
.pull_param
);
153 brw_upload_cache(&brw
->cache
, BRW_CACHE_CS_PROG
,
155 program
, prog_data
.base
.program_size
,
156 &prog_data
, sizeof(prog_data
),
157 &brw
->cs
.base
.prog_offset
, &brw
->cs
.base
.prog_data
);
158 ralloc_free(mem_ctx
);
165 brw_cs_populate_key(struct brw_context
*brw
, struct brw_cs_prog_key
*key
)
167 struct gl_context
*ctx
= &brw
->ctx
;
168 /* BRW_NEW_COMPUTE_PROGRAM */
169 const struct brw_program
*cp
=
170 (struct brw_program
*) brw
->programs
[MESA_SHADER_COMPUTE
];
172 memset(key
, 0, sizeof(*key
));
175 brw_populate_base_prog_key(ctx
, cp
, &key
->base
);
180 brw_upload_cs_prog(struct brw_context
*brw
)
182 struct gl_context
*ctx
= &brw
->ctx
;
183 struct brw_cs_prog_key key
;
184 struct brw_program
*cp
=
185 (struct brw_program
*) brw
->programs
[MESA_SHADER_COMPUTE
];
190 if (!brw_state_dirty(brw
, _NEW_TEXTURE
, BRW_NEW_COMPUTE_PROGRAM
))
193 brw
->cs
.base
.sampler_count
=
194 util_last_bit(ctx
->ComputeProgram
._Current
->SamplersUsed
);
196 brw_cs_populate_key(brw
, &key
);
198 if (brw_search_cache(&brw
->cache
, BRW_CACHE_CS_PROG
, &key
, sizeof(key
),
199 &brw
->cs
.base
.prog_offset
, &brw
->cs
.base
.prog_data
,
203 if (brw_disk_cache_upload_program(brw
, MESA_SHADER_COMPUTE
))
206 cp
= (struct brw_program
*) brw
->programs
[MESA_SHADER_COMPUTE
];
207 cp
->id
= key
.base
.program_string_id
;
209 ASSERTED
bool success
= brw_codegen_cs_prog(brw
, cp
, &key
);
214 brw_cs_populate_default_key(const struct brw_compiler
*compiler
,
215 struct brw_cs_prog_key
*key
,
216 struct gl_program
*prog
)
218 const struct gen_device_info
*devinfo
= compiler
->devinfo
;
219 memset(key
, 0, sizeof(*key
));
220 brw_populate_default_base_prog_key(devinfo
, brw_program(prog
), &key
->base
);
224 brw_cs_precompile(struct gl_context
*ctx
, struct gl_program
*prog
)
226 struct brw_context
*brw
= brw_context(ctx
);
227 struct brw_cs_prog_key key
;
229 struct brw_program
*bcp
= brw_program(prog
);
231 brw_cs_populate_default_key(brw
->screen
->compiler
, &key
, prog
);
233 uint32_t old_prog_offset
= brw
->cs
.base
.prog_offset
;
234 struct brw_stage_prog_data
*old_prog_data
= brw
->cs
.base
.prog_data
;
236 bool success
= brw_codegen_cs_prog(brw
, bcp
, &key
);
238 brw
->cs
.base
.prog_offset
= old_prog_offset
;
239 brw
->cs
.base
.prog_data
= old_prog_data
;