2 * Copyright (c) 2014 - 2015 Intel Corporation
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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
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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"
36 assign_cs_binding_table_offsets(const struct gen_device_info
*devinfo
,
37 const struct gl_program
*prog
,
38 struct brw_cs_prog_data
*prog_data
)
40 uint32_t next_binding_table_offset
= 0;
42 /* May not be used if the gl_NumWorkGroups variable is not accessed. */
43 prog_data
->binding_table
.work_groups_start
= next_binding_table_offset
;
44 next_binding_table_offset
++;
46 brw_assign_common_binding_table_offsets(devinfo
, prog
, &prog_data
->base
,
47 next_binding_table_offset
);
51 brw_codegen_cs_prog(struct brw_context
*brw
,
52 struct brw_program
*cp
,
53 struct brw_cs_prog_key
*key
)
55 const struct gen_device_info
*devinfo
= &brw
->screen
->devinfo
;
56 const GLuint
*program
;
57 void *mem_ctx
= ralloc_context(NULL
);
58 struct brw_cs_prog_data prog_data
;
59 bool start_busy
= false;
60 double start_time
= 0;
61 nir_shader
*nir
= nir_shader_clone(mem_ctx
, cp
->program
.nir
);
63 memset(&prog_data
, 0, sizeof(prog_data
));
65 if (cp
->program
.info
.cs
.shared_size
> 64 * 1024) {
66 cp
->program
.sh
.data
->LinkStatus
= LINKING_FAILURE
;
67 const char *error_str
=
68 "Compute shader used more than 64KB of shared variables";
69 ralloc_strcat(&cp
->program
.sh
.data
->InfoLog
, error_str
);
70 _mesa_problem(NULL
, "Failed to link compute shader: %s\n", error_str
);
75 prog_data
.base
.total_shared
= cp
->program
.info
.cs
.shared_size
;
78 assign_cs_binding_table_offsets(devinfo
, &cp
->program
, &prog_data
);
80 brw_nir_setup_glsl_uniforms(mem_ctx
, nir
,
81 &cp
->program
, &prog_data
.base
, true);
83 if (unlikely(brw
->perf_debug
)) {
84 start_busy
= (brw
->batch
.last_bo
&&
85 brw_bo_busy(brw
->batch
.last_bo
));
86 start_time
= get_time();
90 if (INTEL_DEBUG
& DEBUG_SHADER_TIME
)
91 st_index
= brw_get_shader_time_index(brw
, &cp
->program
, ST_CS
, true);
94 program
= brw_compile_cs(brw
->screen
->compiler
, brw
, mem_ctx
, key
,
95 &prog_data
, nir
, st_index
, &error_str
);
96 if (program
== NULL
) {
97 cp
->program
.sh
.data
->LinkStatus
= LINKING_FAILURE
;
98 ralloc_strcat(&cp
->program
.sh
.data
->InfoLog
, error_str
);
99 _mesa_problem(NULL
, "Failed to compile compute shader: %s\n", error_str
);
101 ralloc_free(mem_ctx
);
105 if (unlikely(brw
->perf_debug
)) {
106 if (cp
->compiled_once
) {
107 brw_debug_recompile(brw
, MESA_SHADER_COMPUTE
, cp
->program
.Id
,
108 key
->program_string_id
, key
);
110 cp
->compiled_once
= true;
112 if (start_busy
&& !brw_bo_busy(brw
->batch
.last_bo
)) {
113 perf_debug("CS compile took %.03f ms and stalled the GPU\n",
114 (get_time() - start_time
) * 1000);
118 brw_alloc_stage_scratch(brw
, &brw
->cs
.base
, prog_data
.base
.total_scratch
);
120 /* The param and pull_param arrays will be freed by the shader cache. */
121 ralloc_steal(NULL
, prog_data
.base
.param
);
122 ralloc_steal(NULL
, prog_data
.base
.pull_param
);
123 brw_upload_cache(&brw
->cache
, BRW_CACHE_CS_PROG
,
125 program
, prog_data
.base
.program_size
,
126 &prog_data
, sizeof(prog_data
),
127 &brw
->cs
.base
.prog_offset
, &brw
->cs
.base
.prog_data
);
128 ralloc_free(mem_ctx
);
135 brw_cs_populate_key(struct brw_context
*brw
, struct brw_cs_prog_key
*key
)
137 struct gl_context
*ctx
= &brw
->ctx
;
138 /* BRW_NEW_COMPUTE_PROGRAM */
139 const struct brw_program
*cp
=
140 (struct brw_program
*) brw
->programs
[MESA_SHADER_COMPUTE
];
141 const struct gl_program
*prog
= (struct gl_program
*) cp
;
143 memset(key
, 0, sizeof(*key
));
146 brw_populate_sampler_prog_key_data(ctx
, prog
, &key
->tex
);
148 /* The unique compute program ID */
149 key
->program_string_id
= cp
->id
;
154 brw_upload_cs_prog(struct brw_context
*brw
)
156 struct gl_context
*ctx
= &brw
->ctx
;
157 struct brw_cs_prog_key key
;
158 struct brw_program
*cp
=
159 (struct brw_program
*) brw
->programs
[MESA_SHADER_COMPUTE
];
164 if (!brw_state_dirty(brw
, _NEW_TEXTURE
, BRW_NEW_COMPUTE_PROGRAM
))
167 brw
->cs
.base
.sampler_count
=
168 util_last_bit(ctx
->ComputeProgram
._Current
->SamplersUsed
);
170 brw_cs_populate_key(brw
, &key
);
172 if (brw_search_cache(&brw
->cache
, BRW_CACHE_CS_PROG
, &key
, sizeof(key
),
173 &brw
->cs
.base
.prog_offset
, &brw
->cs
.base
.prog_data
,
177 if (brw_disk_cache_upload_program(brw
, MESA_SHADER_COMPUTE
))
180 cp
= (struct brw_program
*) brw
->programs
[MESA_SHADER_COMPUTE
];
181 cp
->id
= key
.program_string_id
;
183 MAYBE_UNUSED
bool success
= brw_codegen_cs_prog(brw
, cp
, &key
);
188 brw_cs_populate_default_key(const struct gen_device_info
*devinfo
,
189 struct brw_cs_prog_key
*key
,
190 struct gl_program
*prog
)
192 memset(key
, 0, sizeof(*key
));
193 key
->program_string_id
= brw_program(prog
)->id
;
195 brw_setup_tex_for_precompile(devinfo
, &key
->tex
, prog
);
199 brw_cs_precompile(struct gl_context
*ctx
, struct gl_program
*prog
)
201 struct brw_context
*brw
= brw_context(ctx
);
202 struct brw_cs_prog_key key
;
204 struct brw_program
*bcp
= brw_program(prog
);
206 brw_cs_populate_default_key(&brw
->screen
->devinfo
, &key
, prog
);
208 uint32_t old_prog_offset
= brw
->cs
.base
.prog_offset
;
209 struct brw_stage_prog_data
*old_prog_data
= brw
->cs
.base
.prog_data
;
211 bool success
= brw_codegen_cs_prog(brw
, bcp
, &key
);
213 brw
->cs
.base
.prog_offset
= old_prog_offset
;
214 brw
->cs
.base
.prog_data
= old_prog_data
;