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
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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 assign_gs_binding_table_offsets(const struct gen_device_info
*devinfo
,
40 const struct gl_program
*prog
,
41 struct brw_gs_prog_data
*prog_data
)
43 /* In gen6 we reserve the first BRW_MAX_SOL_BINDINGS entries for transform
46 uint32_t reserved
= devinfo
->gen
== 6 ? BRW_MAX_SOL_BINDINGS
: 0;
48 brw_assign_common_binding_table_offsets(devinfo
, prog
,
49 &prog_data
->base
.base
, reserved
);
53 brw_codegen_gs_prog(struct brw_context
*brw
,
54 struct brw_program
*gp
,
55 struct brw_gs_prog_key
*key
)
57 struct brw_compiler
*compiler
= brw
->screen
->compiler
;
58 const struct gen_device_info
*devinfo
= &brw
->screen
->devinfo
;
59 struct brw_stage_state
*stage_state
= &brw
->gs
.base
;
60 struct brw_gs_prog_data prog_data
;
61 bool start_busy
= false;
62 double start_time
= 0;
64 memset(&prog_data
, 0, sizeof(prog_data
));
66 void *mem_ctx
= ralloc_context(NULL
);
68 nir_shader
*nir
= nir_shader_clone(mem_ctx
, gp
->program
.nir
);
70 assign_gs_binding_table_offsets(devinfo
, &gp
->program
, &prog_data
);
72 brw_nir_setup_glsl_uniforms(mem_ctx
, nir
, &gp
->program
,
74 compiler
->scalar_stage
[MESA_SHADER_GEOMETRY
]);
75 brw_nir_analyze_ubo_ranges(compiler
, nir
, NULL
,
76 prog_data
.base
.base
.ubo_ranges
);
78 uint64_t outputs_written
= nir
->info
.outputs_written
;
80 brw_compute_vue_map(devinfo
,
81 &prog_data
.base
.vue_map
, outputs_written
,
82 gp
->program
.info
.separate_shader
);
85 if (INTEL_DEBUG
& DEBUG_SHADER_TIME
)
86 st_index
= brw_get_shader_time_index(brw
, &gp
->program
, ST_GS
, true);
88 if (unlikely(brw
->perf_debug
)) {
89 start_busy
= brw
->batch
.last_bo
&& brw_bo_busy(brw
->batch
.last_bo
);
90 start_time
= get_time();
94 const unsigned *program
=
95 brw_compile_gs(brw
->screen
->compiler
, brw
, mem_ctx
, key
,
96 &prog_data
, nir
, &gp
->program
, st_index
, &error_str
);
97 if (program
== NULL
) {
98 ralloc_strcat(&gp
->program
.sh
.data
->InfoLog
, error_str
);
99 _mesa_problem(NULL
, "Failed to compile geometry shader: %s\n", error_str
);
101 ralloc_free(mem_ctx
);
105 if (unlikely(brw
->perf_debug
)) {
106 if (gp
->compiled_once
) {
107 brw_debug_recompile(brw
, MESA_SHADER_GEOMETRY
, gp
->program
.Id
,
108 key
->program_string_id
, key
);
110 if (start_busy
&& !brw_bo_busy(brw
->batch
.last_bo
)) {
111 perf_debug("GS compile took %.03f ms and stalled the GPU\n",
112 (get_time() - start_time
) * 1000);
114 gp
->compiled_once
= true;
117 /* Scratch space is used for register spilling */
118 brw_alloc_stage_scratch(brw
, stage_state
,
119 prog_data
.base
.base
.total_scratch
);
121 /* The param and pull_param arrays will be freed by the shader cache. */
122 ralloc_steal(NULL
, prog_data
.base
.base
.param
);
123 ralloc_steal(NULL
, prog_data
.base
.base
.pull_param
);
124 brw_upload_cache(&brw
->cache
, BRW_CACHE_GS_PROG
,
126 program
, prog_data
.base
.base
.program_size
,
127 &prog_data
, sizeof(prog_data
),
128 &stage_state
->prog_offset
, &brw
->gs
.base
.prog_data
);
129 ralloc_free(mem_ctx
);
135 brw_gs_state_dirty(const struct brw_context
*brw
)
137 return brw_state_dirty(brw
,
139 BRW_NEW_GEOMETRY_PROGRAM
|
140 BRW_NEW_TRANSFORM_FEEDBACK
);
144 brw_gs_populate_key(struct brw_context
*brw
,
145 struct brw_gs_prog_key
*key
)
147 struct gl_context
*ctx
= &brw
->ctx
;
148 struct brw_program
*gp
=
149 (struct brw_program
*) brw
->programs
[MESA_SHADER_GEOMETRY
];
151 memset(key
, 0, sizeof(*key
));
153 key
->program_string_id
= gp
->id
;
156 brw_populate_sampler_prog_key_data(ctx
, &gp
->program
, &key
->tex
);
160 brw_upload_gs_prog(struct brw_context
*brw
)
162 struct brw_stage_state
*stage_state
= &brw
->gs
.base
;
163 struct brw_gs_prog_key key
;
164 /* BRW_NEW_GEOMETRY_PROGRAM */
165 struct brw_program
*gp
=
166 (struct brw_program
*) brw
->programs
[MESA_SHADER_GEOMETRY
];
168 if (!brw_gs_state_dirty(brw
))
171 brw_gs_populate_key(brw
, &key
);
173 if (brw_search_cache(&brw
->cache
, BRW_CACHE_GS_PROG
, &key
, sizeof(key
),
174 &stage_state
->prog_offset
, &brw
->gs
.base
.prog_data
,
178 if (brw_disk_cache_upload_program(brw
, MESA_SHADER_GEOMETRY
))
181 gp
= (struct brw_program
*) brw
->programs
[MESA_SHADER_GEOMETRY
];
182 gp
->id
= key
.program_string_id
;
184 MAYBE_UNUSED
bool success
= brw_codegen_gs_prog(brw
, gp
, &key
);
189 brw_gs_populate_default_key(const struct brw_compiler
*compiler
,
190 struct brw_gs_prog_key
*key
,
191 struct gl_program
*prog
)
193 const struct gen_device_info
*devinfo
= compiler
->devinfo
;
195 memset(key
, 0, sizeof(*key
));
197 brw_setup_tex_for_precompile(devinfo
, &key
->tex
, prog
);
198 key
->program_string_id
= brw_program(prog
)->id
;
202 brw_gs_precompile(struct gl_context
*ctx
, struct gl_program
*prog
)
204 struct brw_context
*brw
= brw_context(ctx
);
205 struct brw_gs_prog_key key
;
206 uint32_t old_prog_offset
= brw
->gs
.base
.prog_offset
;
207 struct brw_stage_prog_data
*old_prog_data
= brw
->gs
.base
.prog_data
;
210 struct brw_program
*bgp
= brw_program(prog
);
212 brw_gs_populate_default_key(brw
->screen
->compiler
, &key
, prog
);
214 success
= brw_codegen_gs_prog(brw
, bgp
, &key
);
216 brw
->gs
.base
.prog_offset
= old_prog_offset
;
217 brw
->gs
.base
.prog_data
= old_prog_data
;