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