mesa/src/microsoft/clc/clc_nir.c

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/*
* Copyright © Microsoft 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 "u_math.h"
#include "nir.h"
#include "glsl_types.h"
#include "nir_types.h"
#include "nir_builder.h"
#include "clc_nir.h"
#include "clc_compiler.h"
#include "../compiler/dxil_nir.h"
static bool
lower_load_base_global_invocation_id(nir_builder *b, nir_intrinsic_instr *intr,
nir_variable *var)
{
b->cursor = nir_after_instr(&intr->instr);
nir_ssa_def *offset =
build_load_ubo_dxil(b, nir_imm_int(b, var->data.binding),
nir_imm_int(b,
offsetof(struct clc_work_properties_data,
global_offset_x)),
nir_dest_num_components(intr->dest),
nir_dest_bit_size(intr->dest));
nir_ssa_def_rewrite_uses(&intr->dest.ssa, offset);
nir_instr_remove(&intr->instr);
return true;
}
static bool
lower_load_work_dim(nir_builder *b, nir_intrinsic_instr *intr,
nir_variable *var)
{
b->cursor = nir_after_instr(&intr->instr);
nir_ssa_def *dim =
build_load_ubo_dxil(b, nir_imm_int(b, var->data.binding),
nir_imm_int(b,
offsetof(struct clc_work_properties_data,
work_dim)),
nir_dest_num_components(intr->dest),
nir_dest_bit_size(intr->dest));
nir_ssa_def_rewrite_uses(&intr->dest.ssa, dim);
nir_instr_remove(&intr->instr);
return true;
}
static bool
lower_load_num_workgroups(nir_builder *b, nir_intrinsic_instr *intr,
nir_variable *var)
{
b->cursor = nir_after_instr(&intr->instr);
nir_ssa_def *count =
build_load_ubo_dxil(b, nir_imm_int(b, var->data.binding),
nir_imm_int(b,
offsetof(struct clc_work_properties_data,
group_count_total_x)),
nir_dest_num_components(intr->dest),
nir_dest_bit_size(intr->dest));
nir_ssa_def_rewrite_uses(&intr->dest.ssa, count);
nir_instr_remove(&intr->instr);
return true;
}
static bool
lower_load_base_workgroup_id(nir_builder *b, nir_intrinsic_instr *intr,
nir_variable *var)
{
b->cursor = nir_after_instr(&intr->instr);
nir_ssa_def *offset =
build_load_ubo_dxil(b, nir_imm_int(b, var->data.binding),
nir_imm_int(b,
offsetof(struct clc_work_properties_data,
group_id_offset_x)),
nir_dest_num_components(intr->dest),
nir_dest_bit_size(intr->dest));
nir_ssa_def_rewrite_uses(&intr->dest.ssa, offset);
nir_instr_remove(&intr->instr);
return true;
}
bool
clc_nir_lower_system_values(nir_shader *nir, nir_variable *var)
{
bool progress = false;
foreach_list_typed(nir_function, func, node, &nir->functions) {
if (!func->is_entrypoint)
continue;
assert(func->impl);
nir_builder b;
nir_builder_init(&b, func->impl);
nir_foreach_block(block, func->impl) {
nir_foreach_instr_safe(instr, block) {
if (instr->type != nir_instr_type_intrinsic)
continue;
nir_intrinsic_instr *intr = nir_instr_as_intrinsic(instr);
switch (intr->intrinsic) {
case nir_intrinsic_load_base_global_invocation_id:
progress |= lower_load_base_global_invocation_id(&b, intr, var);
break;
case nir_intrinsic_load_work_dim:
progress |= lower_load_work_dim(&b, intr, var);
break;
case nir_intrinsic_load_num_workgroups:
lower_load_num_workgroups(&b, intr, var);
break;
case nir_intrinsic_load_base_workgroup_id:
lower_load_base_workgroup_id(&b, intr, var);
break;
default: break;
}
}
}
}
return progress;
}
static bool
lower_load_kernel_input(nir_builder *b, nir_intrinsic_instr *intr,
nir_variable *var)
{
b->cursor = nir_before_instr(&intr->instr);
unsigned bit_size = nir_dest_bit_size(intr->dest);
enum glsl_base_type base_type;
switch (bit_size) {
case 64:
base_type = GLSL_TYPE_UINT64;
break;
case 32:
base_type = GLSL_TYPE_UINT;
break;
case 16:
base_type = GLSL_TYPE_UINT16;
break;
case 8:
base_type = GLSL_TYPE_UINT8;
break;
}
const struct glsl_type *type =
glsl_vector_type(base_type, nir_dest_num_components(intr->dest));
nir_ssa_def *ptr = nir_vec2(b, nir_imm_int(b, var->data.binding),
nir_u2u(b, intr->src[0].ssa, 32));
nir_deref_instr *deref = nir_build_deref_cast(b, ptr, nir_var_mem_ubo, type,
bit_size / 8);
deref->cast.align_mul = nir_intrinsic_align_mul(intr);
deref->cast.align_offset = nir_intrinsic_align_offset(intr);
nir_ssa_def *result =
nir_load_deref(b, deref);
nir_ssa_def_rewrite_uses(&intr->dest.ssa, result);
nir_instr_remove(&intr->instr);
return true;
}
bool
clc_nir_lower_kernel_input_loads(nir_shader *nir, nir_variable *var)
{
bool progress = false;
foreach_list_typed(nir_function, func, node, &nir->functions) {
if (!func->is_entrypoint)
continue;
assert(func->impl);
nir_builder b;
nir_builder_init(&b, func->impl);
nir_foreach_block(block, func->impl) {
nir_foreach_instr_safe(instr, block) {
if (instr->type != nir_instr_type_intrinsic)
continue;
nir_intrinsic_instr *intr = nir_instr_as_intrinsic(instr);
if (intr->intrinsic == nir_intrinsic_load_kernel_input)
progress |= lower_load_kernel_input(&b, intr, var);
}
}
}
return progress;
}
static nir_variable *
add_printf_var(struct nir_shader *nir, unsigned uav_id)
{
/* This size is arbitrary. Minimum required per spec is 1MB */
const unsigned max_printf_size = 1 * 1024 * 1024;
const unsigned printf_array_size = max_printf_size / sizeof(unsigned);
nir_variable *var =
nir_variable_create(nir, nir_var_mem_ssbo,
glsl_array_type(glsl_uint_type(), printf_array_size, sizeof(unsigned)),
"printf");
var->data.binding = uav_id;
return var;
}
bool
clc_lower_printf_base(nir_shader *nir, unsigned uav_id)
{
nir_variable *printf_var = NULL;
nir_ssa_def *printf_deref = NULL;
nir_foreach_function(func, nir) {
nir_builder b;
nir_builder_init(&b, func->impl);
b.cursor = nir_before_instr(nir_block_first_instr(nir_start_block(func->impl)));
bool progress = false;
nir_foreach_block(block, func->impl) {
nir_foreach_instr_safe(instr, block) {
if (instr->type != nir_instr_type_intrinsic)
continue;
nir_intrinsic_instr *intrin = nir_instr_as_intrinsic(instr);
if (intrin->intrinsic != nir_intrinsic_load_printf_buffer_address)
continue;
if (!printf_var) {
printf_var = add_printf_var(nir, uav_id);
nir_deref_instr *deref = nir_build_deref_var(&b, printf_var);
printf_deref = &deref->dest.ssa;
}
nir_ssa_def_rewrite_uses(&intrin->dest.ssa, printf_deref);
progress = true;
}
}
if (progress)
nir_metadata_preserve(func->impl, nir_metadata_loop_analysis |
nir_metadata_block_index |
nir_metadata_dominance);
else
nir_metadata_preserve(func->impl, nir_metadata_all);
}
return printf_var != NULL;
}
static nir_variable *
find_identical_const_sampler(nir_shader *nir, nir_variable *sampler)
{
nir_foreach_variable_with_modes(uniform, nir, nir_var_uniform) {
if (!glsl_type_is_sampler(uniform->type) || !uniform->data.sampler.is_inline_sampler)
continue;
if (uniform->data.sampler.addressing_mode == sampler->data.sampler.addressing_mode &&
uniform->data.sampler.normalized_coordinates == sampler->data.sampler.normalized_coordinates &&
uniform->data.sampler.filter_mode == sampler->data.sampler.filter_mode)
return uniform;
}
unreachable("Should have at least found the input sampler");
}
static bool
clc_nir_dedupe_const_samplers_instr(nir_builder *b,
nir_instr *instr,
void *cb_data)
{
nir_shader *nir = cb_data;
if (instr->type != nir_instr_type_tex)
return false;
nir_tex_instr *tex = nir_instr_as_tex(instr);
int sampler_idx = nir_tex_instr_src_index(tex, nir_tex_src_sampler_deref);
if (sampler_idx == -1)
return false;
nir_deref_instr *deref = nir_src_as_deref(tex->src[sampler_idx].src);
nir_variable *sampler = nir_deref_instr_get_variable(deref);
if (!sampler)
return false;
assert(sampler->data.mode == nir_var_uniform);
if (!sampler->data.sampler.is_inline_sampler)
return false;
nir_variable *replacement = find_identical_const_sampler(nir, sampler);
if (replacement == sampler)
return false;
b->cursor = nir_before_instr(&tex->instr);
nir_deref_instr *replacement_deref = nir_build_deref_var(b, replacement);
nir_instr_rewrite_src(&tex->instr, &tex->src[sampler_idx].src,
nir_src_for_ssa(&replacement_deref->dest.ssa));
nir_deref_instr_remove_if_unused(deref);
return true;
}
bool
clc_nir_dedupe_const_samplers(nir_shader *nir)
{
return nir_shader_instructions_pass(nir,
clc_nir_dedupe_const_samplers_instr,
nir_metadata_block_index |
nir_metadata_dominance,
nir);
}