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a9ed4538ab
This is where it should be rather than having to pass it into the optimisation pass every time. It also allows us to call the loop analysis pass without having to duplicate these options which we will do later in this series. Reviewed-by: Ian Romanick <ian.d.romanick@intel.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12064>
309 lines
13 KiB
C
309 lines
13 KiB
C
/*
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* Copyright © 2015-2016 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 "brw_compiler.h"
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#include "brw_shader.h"
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#include "brw_eu.h"
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#include "dev/intel_debug.h"
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#include "compiler/nir/nir.h"
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#include "main/errors.h"
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#include "util/debug.h"
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#define COMMON_OPTIONS \
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.lower_fdiv = true, \
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.lower_scmp = true, \
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.lower_flrp16 = true, \
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.lower_fmod = true, \
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.lower_bitfield_extract = true, \
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.lower_bitfield_insert = true, \
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.lower_uadd_carry = true, \
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.lower_usub_borrow = true, \
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.lower_flrp64 = true, \
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.lower_isign = true, \
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.lower_ldexp = true, \
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.lower_device_index_to_zero = true, \
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.vectorize_io = true, \
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.use_interpolated_input_intrinsics = true, \
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.lower_insert_byte = true, \
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.lower_insert_word = true, \
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.vertex_id_zero_based = true, \
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.lower_base_vertex = true, \
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.use_scoped_barrier = true, \
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.support_16bit_alu = true, \
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.lower_uniforms_to_ubo = true, \
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.has_txs = true
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#define COMMON_SCALAR_OPTIONS \
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.lower_to_scalar = true, \
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.lower_pack_half_2x16 = true, \
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.lower_pack_snorm_2x16 = true, \
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.lower_pack_snorm_4x8 = true, \
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.lower_pack_unorm_2x16 = true, \
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.lower_pack_unorm_4x8 = true, \
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.lower_unpack_half_2x16 = true, \
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.lower_unpack_snorm_2x16 = true, \
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.lower_unpack_snorm_4x8 = true, \
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.lower_unpack_unorm_2x16 = true, \
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.lower_unpack_unorm_4x8 = true, \
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.lower_usub_sat64 = true, \
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.lower_hadd64 = true, \
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.lower_bfe_with_two_constants = true, \
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.max_unroll_iterations = 32, \
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.force_indirect_unrolling = nir_var_function_temp
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static const struct nir_shader_compiler_options scalar_nir_options = {
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COMMON_OPTIONS,
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COMMON_SCALAR_OPTIONS,
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};
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static const struct nir_shader_compiler_options vector_nir_options = {
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COMMON_OPTIONS,
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/* In the vec4 backend, our dpN instruction replicates its result to all the
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* components of a vec4. We would like NIR to give us replicated fdot
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* instructions because it can optimize better for us.
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*/
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.fdot_replicates = true,
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.lower_pack_snorm_2x16 = true,
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.lower_pack_unorm_2x16 = true,
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.lower_unpack_snorm_2x16 = true,
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.lower_unpack_unorm_2x16 = true,
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.lower_extract_byte = true,
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.lower_extract_word = true,
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.intel_vec4 = true,
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.max_unroll_iterations = 32,
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};
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struct brw_compiler *
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brw_compiler_create(void *mem_ctx, const struct intel_device_info *devinfo)
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{
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struct brw_compiler *compiler = rzalloc(mem_ctx, struct brw_compiler);
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compiler->devinfo = devinfo;
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brw_fs_alloc_reg_sets(compiler);
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brw_vec4_alloc_reg_set(compiler);
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compiler->precise_trig = env_var_as_boolean("INTEL_PRECISE_TRIG", false);
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compiler->use_tcs_8_patch =
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devinfo->ver >= 12 ||
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(devinfo->ver >= 9 && (INTEL_DEBUG & DEBUG_TCS_EIGHT_PATCH));
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/* Default to the sampler since that's what we've done since forever */
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compiler->indirect_ubos_use_sampler = true;
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/* There is no vec4 mode on Gfx10+, and we don't use it at all on Gfx8+. */
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for (int i = MESA_SHADER_VERTEX; i < MESA_ALL_SHADER_STAGES; i++) {
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compiler->scalar_stage[i] = devinfo->ver >= 8 ||
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i == MESA_SHADER_FRAGMENT || i == MESA_SHADER_COMPUTE;
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}
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for (int i = MESA_SHADER_TASK; i < MESA_VULKAN_SHADER_STAGES; i++)
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compiler->scalar_stage[i] = true;
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nir_lower_int64_options int64_options =
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nir_lower_imul64 |
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nir_lower_isign64 |
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nir_lower_divmod64 |
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nir_lower_imul_high64;
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nir_lower_doubles_options fp64_options =
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nir_lower_drcp |
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nir_lower_dsqrt |
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nir_lower_drsq |
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nir_lower_dtrunc |
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nir_lower_dfloor |
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nir_lower_dceil |
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nir_lower_dfract |
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nir_lower_dround_even |
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nir_lower_dmod |
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nir_lower_dsub |
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nir_lower_ddiv;
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if (!devinfo->has_64bit_float || (INTEL_DEBUG & DEBUG_SOFT64)) {
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int64_options |= (nir_lower_int64_options)~0;
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fp64_options |= nir_lower_fp64_full_software;
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}
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/* The Bspec's section tittled "Instruction_multiply[DevBDW+]" claims that
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* destination type can be Quadword and source type Doubleword for Gfx8 and
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* Gfx9. So, lower 64 bit multiply instruction on rest of the platforms.
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*/
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if (devinfo->ver < 8 || devinfo->ver > 9)
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int64_options |= nir_lower_imul_2x32_64;
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/* We want the GLSL compiler to emit code that uses condition codes */
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for (int i = 0; i < MESA_ALL_SHADER_STAGES; i++) {
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compiler->glsl_compiler_options[i].MaxUnrollIterations = 0;
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compiler->glsl_compiler_options[i].MaxIfDepth =
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devinfo->ver < 6 ? 16 : UINT_MAX;
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/* We handle this in NIR */
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compiler->glsl_compiler_options[i].EmitNoIndirectInput = false;
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compiler->glsl_compiler_options[i].EmitNoIndirectOutput = false;
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compiler->glsl_compiler_options[i].EmitNoIndirectUniform = false;
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compiler->glsl_compiler_options[i].EmitNoIndirectTemp = false;
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bool is_scalar = compiler->scalar_stage[i];
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compiler->glsl_compiler_options[i].OptimizeForAOS = !is_scalar;
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struct nir_shader_compiler_options *nir_options =
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rzalloc(compiler, struct nir_shader_compiler_options);
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if (is_scalar) {
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*nir_options = scalar_nir_options;
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} else {
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*nir_options = vector_nir_options;
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}
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/* Prior to Gfx6, there are no three source operations, and Gfx11 loses
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* LRP.
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*/
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nir_options->lower_ffma16 = devinfo->ver < 6;
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nir_options->lower_ffma32 = devinfo->ver < 6;
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nir_options->lower_ffma64 = devinfo->ver < 6;
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nir_options->lower_flrp32 = devinfo->ver < 6 || devinfo->ver >= 11;
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nir_options->lower_fpow = devinfo->ver >= 12;
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nir_options->lower_rotate = devinfo->ver < 11;
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nir_options->lower_bitfield_reverse = devinfo->ver < 7;
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nir_options->has_iadd3 = devinfo->verx10 >= 125;
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nir_options->lower_int64_options = int64_options;
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nir_options->lower_doubles_options = fp64_options;
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/* Starting with Gfx11, we lower away 8-bit arithmetic */
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nir_options->support_8bit_alu = devinfo->ver < 11;
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nir_options->unify_interfaces = i < MESA_SHADER_FRAGMENT;
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nir_options->force_indirect_unrolling |=
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brw_nir_no_indirect_mask(compiler, i);
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compiler->glsl_compiler_options[i].NirOptions = nir_options;
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compiler->glsl_compiler_options[i].ClampBlockIndicesToArrayBounds = true;
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}
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return compiler;
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}
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static void
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insert_u64_bit(uint64_t *val, bool add)
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{
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*val = (*val << 1) | !!add;
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}
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uint64_t
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brw_get_compiler_config_value(const struct brw_compiler *compiler)
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{
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uint64_t config = 0;
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insert_u64_bit(&config, compiler->precise_trig);
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if (compiler->devinfo->ver >= 8 && compiler->devinfo->ver < 10) {
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insert_u64_bit(&config, compiler->scalar_stage[MESA_SHADER_VERTEX]);
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insert_u64_bit(&config, compiler->scalar_stage[MESA_SHADER_TESS_CTRL]);
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insert_u64_bit(&config, compiler->scalar_stage[MESA_SHADER_TESS_EVAL]);
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insert_u64_bit(&config, compiler->scalar_stage[MESA_SHADER_GEOMETRY]);
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}
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uint64_t debug_bits = INTEL_DEBUG;
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uint64_t mask = DEBUG_DISK_CACHE_MASK;
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while (mask != 0) {
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const uint64_t bit = 1ULL << (ffsll(mask) - 1);
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insert_u64_bit(&config, (debug_bits & bit) != 0);
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mask &= ~bit;
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}
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return config;
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}
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unsigned
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brw_prog_data_size(gl_shader_stage stage)
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{
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static const size_t stage_sizes[] = {
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[MESA_SHADER_VERTEX] = sizeof(struct brw_vs_prog_data),
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[MESA_SHADER_TESS_CTRL] = sizeof(struct brw_tcs_prog_data),
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[MESA_SHADER_TESS_EVAL] = sizeof(struct brw_tes_prog_data),
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[MESA_SHADER_GEOMETRY] = sizeof(struct brw_gs_prog_data),
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[MESA_SHADER_FRAGMENT] = sizeof(struct brw_wm_prog_data),
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[MESA_SHADER_COMPUTE] = sizeof(struct brw_cs_prog_data),
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[MESA_SHADER_RAYGEN] = sizeof(struct brw_bs_prog_data),
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[MESA_SHADER_ANY_HIT] = sizeof(struct brw_bs_prog_data),
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[MESA_SHADER_CLOSEST_HIT] = sizeof(struct brw_bs_prog_data),
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[MESA_SHADER_MISS] = sizeof(struct brw_bs_prog_data),
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[MESA_SHADER_INTERSECTION] = sizeof(struct brw_bs_prog_data),
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[MESA_SHADER_CALLABLE] = sizeof(struct brw_bs_prog_data),
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[MESA_SHADER_KERNEL] = sizeof(struct brw_cs_prog_data),
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};
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assert((int)stage >= 0 && stage < ARRAY_SIZE(stage_sizes));
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return stage_sizes[stage];
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}
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unsigned
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brw_prog_key_size(gl_shader_stage stage)
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{
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static const size_t stage_sizes[] = {
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[MESA_SHADER_VERTEX] = sizeof(struct brw_vs_prog_key),
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[MESA_SHADER_TESS_CTRL] = sizeof(struct brw_tcs_prog_key),
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[MESA_SHADER_TESS_EVAL] = sizeof(struct brw_tes_prog_key),
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[MESA_SHADER_GEOMETRY] = sizeof(struct brw_gs_prog_key),
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[MESA_SHADER_FRAGMENT] = sizeof(struct brw_wm_prog_key),
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[MESA_SHADER_COMPUTE] = sizeof(struct brw_cs_prog_key),
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[MESA_SHADER_RAYGEN] = sizeof(struct brw_bs_prog_key),
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[MESA_SHADER_ANY_HIT] = sizeof(struct brw_bs_prog_key),
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[MESA_SHADER_CLOSEST_HIT] = sizeof(struct brw_bs_prog_key),
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[MESA_SHADER_MISS] = sizeof(struct brw_bs_prog_key),
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[MESA_SHADER_INTERSECTION] = sizeof(struct brw_bs_prog_key),
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[MESA_SHADER_CALLABLE] = sizeof(struct brw_bs_prog_key),
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[MESA_SHADER_KERNEL] = sizeof(struct brw_cs_prog_key),
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};
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assert((int)stage >= 0 && stage < ARRAY_SIZE(stage_sizes));
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return stage_sizes[stage];
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}
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void
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brw_write_shader_relocs(const struct intel_device_info *devinfo,
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void *program,
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const struct brw_stage_prog_data *prog_data,
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struct brw_shader_reloc_value *values,
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unsigned num_values)
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{
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for (unsigned i = 0; i < prog_data->num_relocs; i++) {
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assert(prog_data->relocs[i].offset % 8 == 0);
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void *dst = program + prog_data->relocs[i].offset;
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for (unsigned j = 0; j < num_values; j++) {
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if (prog_data->relocs[i].id == values[j].id) {
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uint32_t value = values[j].value + prog_data->relocs[i].delta;
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switch (prog_data->relocs[i].type) {
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case BRW_SHADER_RELOC_TYPE_U32:
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*(uint32_t *)dst = value;
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break;
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case BRW_SHADER_RELOC_TYPE_MOV_IMM:
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brw_update_reloc_imm(devinfo, dst, value);
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break;
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default:
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unreachable("Invalid relocation type");
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}
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break;
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}
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}
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}
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}
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