diff options
Diffstat (limited to 'src/intel/vulkan/anv_nir_apply_pipeline_layout.c')
| -rw-r--r-- | src/intel/vulkan/anv_nir_apply_pipeline_layout.c | 394 |
1 files changed, 394 insertions, 0 deletions
diff --git a/src/intel/vulkan/anv_nir_apply_pipeline_layout.c b/src/intel/vulkan/anv_nir_apply_pipeline_layout.c new file mode 100644 index 0000000..c58a938 --- /dev/null +++ b/src/intel/vulkan/anv_nir_apply_pipeline_layout.c @@ -0,0 +1,394 @@ +/* + * Copyright © 2015 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 "program/prog_parameter.h" +#include "nir/nir_builder.h" + +struct apply_pipeline_layout_state { + nir_shader *shader; + nir_builder builder; + + struct { + BITSET_WORD *used; + uint8_t *surface_offsets; + uint8_t *sampler_offsets; + uint8_t *image_offsets; + } set[MAX_SETS]; +}; + +static void +add_binding(struct apply_pipeline_layout_state *state, + uint32_t set, uint32_t binding) +{ + BITSET_SET(state->set[set].used, binding); +} + +static void +add_var_binding(struct apply_pipeline_layout_state *state, nir_variable *var) +{ + add_binding(state, var->data.descriptor_set, var->data.binding); +} + +static bool +get_used_bindings_block(nir_block *block, void *void_state) +{ + struct apply_pipeline_layout_state *state = void_state; + + nir_foreach_instr_safe(block, instr) { + switch (instr->type) { + case nir_instr_type_intrinsic: { + nir_intrinsic_instr *intrin = nir_instr_as_intrinsic(instr); + switch (intrin->intrinsic) { + case nir_intrinsic_vulkan_resource_index: + add_binding(state, nir_intrinsic_desc_set(intrin), + nir_intrinsic_binding(intrin)); + break; + + case nir_intrinsic_image_load: + case nir_intrinsic_image_store: + case nir_intrinsic_image_atomic_add: + case nir_intrinsic_image_atomic_min: + case nir_intrinsic_image_atomic_max: + case nir_intrinsic_image_atomic_and: + case nir_intrinsic_image_atomic_or: + case nir_intrinsic_image_atomic_xor: + case nir_intrinsic_image_atomic_exchange: + case nir_intrinsic_image_atomic_comp_swap: + case nir_intrinsic_image_size: + case nir_intrinsic_image_samples: + add_var_binding(state, intrin->variables[0]->var); + break; + + default: + break; + } + break; + } + case nir_instr_type_tex: { + nir_tex_instr *tex = nir_instr_as_tex(instr); + assert(tex->texture); + add_var_binding(state, tex->texture->var); + if (tex->sampler) + add_var_binding(state, tex->sampler->var); + break; + } + default: + continue; + } + } + + return true; +} + +static void +lower_res_index_intrinsic(nir_intrinsic_instr *intrin, + struct apply_pipeline_layout_state *state) +{ + nir_builder *b = &state->builder; + + b->cursor = nir_before_instr(&intrin->instr); + + uint32_t set = nir_intrinsic_desc_set(intrin); + uint32_t binding = nir_intrinsic_binding(intrin); + + uint32_t surface_index = state->set[set].surface_offsets[binding]; + + nir_const_value *const_block_idx = + nir_src_as_const_value(intrin->src[0]); + + nir_ssa_def *block_index; + if (const_block_idx) { + block_index = nir_imm_int(b, surface_index + const_block_idx->u[0]); + } else { + block_index = nir_iadd(b, nir_imm_int(b, surface_index), + nir_ssa_for_src(b, intrin->src[0], 1)); + } + + assert(intrin->dest.is_ssa); + nir_ssa_def_rewrite_uses(&intrin->dest.ssa, nir_src_for_ssa(block_index)); + nir_instr_remove(&intrin->instr); +} + +static void +lower_tex_deref(nir_tex_instr *tex, nir_deref_var *deref, + unsigned *const_index, nir_tex_src_type src_type, + struct apply_pipeline_layout_state *state) +{ + if (deref->deref.child) { + assert(deref->deref.child->deref_type == nir_deref_type_array); + nir_deref_array *deref_array = nir_deref_as_array(deref->deref.child); + + *const_index += deref_array->base_offset; + + if (deref_array->deref_array_type == nir_deref_array_type_indirect) { + nir_tex_src *new_srcs = rzalloc_array(tex, nir_tex_src, + tex->num_srcs + 1); + + for (unsigned i = 0; i < tex->num_srcs; i++) { + new_srcs[i].src_type = tex->src[i].src_type; + nir_instr_move_src(&tex->instr, &new_srcs[i].src, &tex->src[i].src); + } + + ralloc_free(tex->src); + tex->src = new_srcs; + + /* Now we can go ahead and move the source over to being a + * first-class texture source. + */ + tex->src[tex->num_srcs].src_type = src_type; + tex->num_srcs++; + assert(deref_array->indirect.is_ssa); + nir_instr_rewrite_src(&tex->instr, &tex->src[tex->num_srcs - 1].src, + deref_array->indirect); + } + } +} + +static void +cleanup_tex_deref(nir_tex_instr *tex, nir_deref_var *deref) +{ + if (deref->deref.child == NULL) + return; + + nir_deref_array *deref_array = nir_deref_as_array(deref->deref.child); + + if (deref_array->deref_array_type != nir_deref_array_type_indirect) + return; + + nir_instr_rewrite_src(&tex->instr, &deref_array->indirect, NIR_SRC_INIT); +} + +static void +lower_tex(nir_tex_instr *tex, struct apply_pipeline_layout_state *state) +{ + /* No one should have come by and lowered it already */ + assert(tex->texture); + + unsigned set = tex->texture->var->data.descriptor_set; + unsigned binding = tex->texture->var->data.binding; + tex->texture_index = state->set[set].surface_offsets[binding]; + lower_tex_deref(tex, tex->texture, &tex->texture_index, + nir_tex_src_texture_offset, state); + + if (tex->sampler) { + unsigned set = tex->sampler->var->data.descriptor_set; + unsigned binding = tex->sampler->var->data.binding; + tex->sampler_index = state->set[set].surface_offsets[binding]; + lower_tex_deref(tex, tex->sampler, &tex->sampler_index, + nir_tex_src_sampler_offset, state); + } + + /* The backend only ever uses this to mark used surfaces. We don't care + * about that little optimization so it just needs to be non-zero. + */ + tex->texture_array_size = 1; + + cleanup_tex_deref(tex, tex->texture); + if (tex->sampler) + cleanup_tex_deref(tex, tex->sampler); + tex->texture = NULL; + tex->sampler = NULL; +} + +static bool +apply_pipeline_layout_block(nir_block *block, void *void_state) +{ + struct apply_pipeline_layout_state *state = void_state; + + nir_foreach_instr_safe(block, instr) { + switch (instr->type) { + case nir_instr_type_intrinsic: { + nir_intrinsic_instr *intrin = nir_instr_as_intrinsic(instr); + if (intrin->intrinsic == nir_intrinsic_vulkan_resource_index) { + lower_res_index_intrinsic(intrin, state); + } + break; + } + case nir_instr_type_tex: + lower_tex(nir_instr_as_tex(instr), state); + break; + default: + continue; + } + } + + return true; +} + +static void +setup_vec4_uniform_value(const union gl_constant_value **params, + const union gl_constant_value *values, + unsigned n) +{ + static const gl_constant_value zero = { 0 }; + + for (unsigned i = 0; i < n; ++i) + params[i] = &values[i]; + + for (unsigned i = n; i < 4; ++i) + params[i] = &zero; +} + +void +anv_nir_apply_pipeline_layout(struct anv_pipeline *pipeline, + nir_shader *shader, + struct brw_stage_prog_data *prog_data) +{ + struct anv_pipeline_layout *layout = pipeline->layout; + + struct apply_pipeline_layout_state state = { + .shader = shader, + }; + + void *mem_ctx = ralloc_context(NULL); + + for (unsigned s = 0; s < layout->num_sets; s++) { + const unsigned count = layout->set[s].layout->binding_count; + const unsigned words = BITSET_WORDS(count); + state.set[s].used = rzalloc_array(mem_ctx, BITSET_WORD, words); + state.set[s].surface_offsets = rzalloc_array(mem_ctx, uint8_t, count); + state.set[s].sampler_offsets = rzalloc_array(mem_ctx, uint8_t, count); + state.set[s].image_offsets = rzalloc_array(mem_ctx, uint8_t, count); + } + + nir_foreach_function(shader, function) { + if (function->impl) + nir_foreach_block(function->impl, get_used_bindings_block, &state); + } + + struct anv_pipeline_bind_map map = { + .surface_count = 0, + .sampler_count = 0, + }; + + for (uint32_t set = 0; set < layout->num_sets; set++) { + struct anv_descriptor_set_layout *set_layout = layout->set[set].layout; + + BITSET_WORD b, _tmp; + BITSET_FOREACH_SET(b, _tmp, state.set[set].used, + set_layout->binding_count) { + if (set_layout->binding[b].stage[shader->stage].surface_index >= 0) + map.surface_count += set_layout->binding[b].array_size; + if (set_layout->binding[b].stage[shader->stage].sampler_index >= 0) + map.sampler_count += set_layout->binding[b].array_size; + if (set_layout->binding[b].stage[shader->stage].image_index >= 0) + map.image_count += set_layout->binding[b].array_size; + } + } + + map.surface_to_descriptor = + malloc(map.surface_count * sizeof(struct anv_pipeline_binding)); + map.sampler_to_descriptor = + malloc(map.sampler_count * sizeof(struct anv_pipeline_binding)); + + pipeline->bindings[shader->stage] = map; + + unsigned surface = 0; + unsigned sampler = 0; + unsigned image = 0; + for (uint32_t set = 0; set < layout->num_sets; set++) { + struct anv_descriptor_set_layout *set_layout = layout->set[set].layout; + + BITSET_WORD b, _tmp; + BITSET_FOREACH_SET(b, _tmp, state.set[set].used, + set_layout->binding_count) { + unsigned array_size = set_layout->binding[b].array_size; + unsigned set_offset = set_layout->binding[b].descriptor_index; + + if (set_layout->binding[b].stage[shader->stage].surface_index >= 0) { + state.set[set].surface_offsets[b] = surface; + for (unsigned i = 0; i < array_size; i++) { + map.surface_to_descriptor[surface + i].set = set; + map.surface_to_descriptor[surface + i].offset = set_offset + i; + } + surface += array_size; + } + + if (set_layout->binding[b].stage[shader->stage].sampler_index >= 0) { + state.set[set].sampler_offsets[b] = sampler; + for (unsigned i = 0; i < array_size; i++) { + map.sampler_to_descriptor[sampler + i].set = set; + map.sampler_to_descriptor[sampler + i].offset = set_offset + i; + } + sampler += array_size; + } + + if (set_layout->binding[b].stage[shader->stage].image_index >= 0) { + state.set[set].image_offsets[b] = image; + image += array_size; + } + } + } + + nir_foreach_function(shader, function) { + if (function->impl) { + nir_builder_init(&state.builder, function->impl); + nir_foreach_block(function->impl, apply_pipeline_layout_block, &state); + nir_metadata_preserve(function->impl, nir_metadata_block_index | + nir_metadata_dominance); + } + } + + if (map.image_count > 0) { + nir_foreach_variable(var, &shader->uniforms) { + if (glsl_type_is_image(var->type) || + (glsl_type_is_array(var->type) && + glsl_type_is_image(glsl_get_array_element(var->type)))) { + /* Images are represented as uniform push constants and the actual + * information required for reading/writing to/from the image is + * storred in the uniform. + */ + unsigned set = var->data.descriptor_set; + unsigned binding = var->data.binding; + unsigned image_index = state.set[set].image_offsets[binding]; + + var->data.driver_location = shader->num_uniforms + + image_index * BRW_IMAGE_PARAM_SIZE * 4; + } + } + + struct anv_push_constants *null_data = NULL; + const gl_constant_value **param = prog_data->param + shader->num_uniforms; + const struct brw_image_param *image_param = null_data->images; + for (uint32_t i = 0; i < map.image_count; i++) { + setup_vec4_uniform_value(param + BRW_IMAGE_PARAM_SURFACE_IDX_OFFSET, + (const union gl_constant_value *)&image_param->surface_idx, 1); + setup_vec4_uniform_value(param + BRW_IMAGE_PARAM_OFFSET_OFFSET, + (const union gl_constant_value *)image_param->offset, 2); + setup_vec4_uniform_value(param + BRW_IMAGE_PARAM_SIZE_OFFSET, + (const union gl_constant_value *)image_param->size, 3); + setup_vec4_uniform_value(param + BRW_IMAGE_PARAM_STRIDE_OFFSET, + (const union gl_constant_value *)image_param->stride, 4); + setup_vec4_uniform_value(param + BRW_IMAGE_PARAM_TILING_OFFSET, + (const union gl_constant_value *)image_param->tiling, 3); + setup_vec4_uniform_value(param + BRW_IMAGE_PARAM_SWIZZLING_OFFSET, + (const union gl_constant_value *)image_param->swizzling, 2); + + param += BRW_IMAGE_PARAM_SIZE; + image_param ++; + } + + shader->num_uniforms += map.image_count * BRW_IMAGE_PARAM_SIZE * 4; + } +} |