94 lines
3.7 KiB
C
94 lines
3.7 KiB
C
/*
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* Copyright © 2017 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#include "anv_nir.h"
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#include "nir/nir_builder.h"
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#include "compiler/brw_compiler.h"
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bool
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anv_nir_add_base_work_group_id(nir_shader *shader,
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struct brw_cs_prog_data *prog_data)
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{
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assert(shader->info.stage == MESA_SHADER_COMPUTE);
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nir_builder b;
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int base_id_offset = -1;
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bool progress = false;
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nir_foreach_function(function, shader) {
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if (!function->impl)
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continue;
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nir_builder_init(&b, function->impl);
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nir_foreach_block(block, function->impl) {
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nir_foreach_instr_safe(instr, block) {
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if (instr->type != nir_instr_type_intrinsic)
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continue;
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nir_intrinsic_instr *load_id = nir_instr_as_intrinsic(instr);
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if (load_id->intrinsic != nir_intrinsic_load_work_group_id)
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continue;
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b.cursor = nir_after_instr(&load_id->instr);
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if (base_id_offset < 0) {
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/* If we don't have a set of BASE_WORK_GROUP_ID params,
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* add them.
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*/
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assert(shader->num_uniforms == prog_data->base.nr_params * 4);
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uint32_t *param =
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brw_stage_prog_data_add_params(&prog_data->base, 3);
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param[0] = BRW_PARAM_BUILTIN_BASE_WORK_GROUP_ID_X;
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param[1] = BRW_PARAM_BUILTIN_BASE_WORK_GROUP_ID_Y;
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param[2] = BRW_PARAM_BUILTIN_BASE_WORK_GROUP_ID_Z;
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base_id_offset = shader->num_uniforms;
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shader->num_uniforms += 12;
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}
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nir_intrinsic_instr *load_base =
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nir_intrinsic_instr_create(shader, nir_intrinsic_load_uniform);
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load_base->num_components = 3;
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load_base->src[0] = nir_src_for_ssa(nir_imm_int(&b, 0));
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nir_ssa_dest_init(&load_base->instr, &load_base->dest, 3, 32, NULL);
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nir_intrinsic_set_base(load_base, base_id_offset);
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nir_intrinsic_set_range(load_base, 3 * sizeof(uint32_t));
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nir_builder_instr_insert(&b, &load_base->instr);
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nir_ssa_def *id = nir_iadd(&b, &load_id->dest.ssa,
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&load_base->dest.ssa);
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nir_ssa_def_rewrite_uses_after(&load_id->dest.ssa,
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nir_src_for_ssa(id),
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id->parent_instr);
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progress = true;
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}
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}
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nir_metadata_preserve(function->impl, nir_metadata_block_index |
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nir_metadata_dominance);
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}
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return progress;
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}
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