| /* |
| * Copyright © 2020 Google, Inc. |
| * Copyright (c) 2020 Etnaviv Project |
| * |
| * 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, sub license, |
| * 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 NON-INFRINGEMENT. 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. |
| * |
| * Authors: |
| * Christian Gmeiner <christian.gmeiner@gmail.com> |
| */ |
| |
| #include "etnaviv_debug.h" |
| #include "etnaviv_disk_cache.h" |
| #include "nir_serialize.h" |
| |
| #define debug 0 |
| |
| void |
| etna_disk_cache_init(struct etna_compiler *compiler, const char *renderer) |
| { |
| if (!(etna_mesa_debug & ETNA_DBG_NIR)) |
| return; |
| |
| if (etna_mesa_debug & ETNA_DBG_NOCACHE) |
| return; |
| |
| const struct build_id_note *note = |
| build_id_find_nhdr_for_addr(etna_disk_cache_init); |
| assert(note && build_id_length(note) == 20); /* sha1 */ |
| |
| const uint8_t *id_sha1 = build_id_data(note); |
| assert(id_sha1); |
| |
| char timestamp[41]; |
| _mesa_sha1_format(timestamp, id_sha1); |
| |
| compiler->disk_cache = disk_cache_create(renderer, timestamp, etna_mesa_debug); |
| } |
| |
| void |
| etna_disk_cache_init_shader_key(struct etna_compiler *compiler, struct etna_shader *shader) |
| { |
| if (!compiler->disk_cache) |
| return; |
| |
| struct mesa_sha1 ctx; |
| |
| _mesa_sha1_init(&ctx); |
| |
| /* Serialize the NIR to a binary blob that we can hash for the disk |
| * cache. Drop unnecessary information (like variable names) |
| * so the serialized NIR is smaller, and also to let us detect more |
| * isomorphic shaders when hashing, increasing cache hits. |
| */ |
| struct blob blob; |
| |
| blob_init(&blob); |
| nir_serialize(&blob, shader->nir, true); |
| _mesa_sha1_update(&ctx, blob.data, blob.size); |
| blob_finish(&blob); |
| |
| _mesa_sha1_final(&ctx, shader->cache_key); |
| } |
| |
| static void |
| compute_variant_key(struct etna_compiler *compiler, struct etna_shader_variant *v, |
| cache_key cache_key) |
| { |
| struct blob blob; |
| |
| blob_init(&blob); |
| |
| blob_write_bytes(&blob, &v->shader->cache_key, sizeof(v->shader->cache_key)); |
| blob_write_bytes(&blob, &v->key, sizeof(v->key)); |
| |
| disk_cache_compute_key(compiler->disk_cache, blob.data, blob.size, cache_key); |
| |
| blob_finish(&blob); |
| } |
| |
| static void |
| retrieve_variant(struct blob_reader *blob, struct etna_shader_variant *v) |
| { |
| blob_copy_bytes(blob, VARIANT_CACHE_PTR(v), VARIANT_CACHE_SIZE); |
| |
| v->code = malloc(4 * v->code_size); |
| blob_copy_bytes(blob, v->code, 4 * v->code_size); |
| |
| blob_copy_bytes(blob, &v->uniforms.imm_count, sizeof(v->uniforms.imm_count)); |
| v->uniforms.imm_contents = malloc(v->uniforms.imm_count * sizeof(v->uniforms.imm_contents)); |
| v->uniforms.imm_data = malloc(v->uniforms.imm_count * sizeof(v->uniforms.imm_data)); |
| |
| blob_copy_bytes(blob, v->uniforms.imm_contents, v->uniforms.imm_count * sizeof(v->uniforms.imm_contents)); |
| blob_copy_bytes(blob, v->uniforms.imm_data, v->uniforms.imm_count * sizeof(v->uniforms.imm_data)); |
| } |
| |
| static void |
| store_variant(struct blob *blob, const struct etna_shader_variant *v) |
| { |
| const uint32_t imm_count = v->uniforms.imm_count; |
| |
| blob_write_bytes(blob, VARIANT_CACHE_PTR(v), VARIANT_CACHE_SIZE); |
| blob_write_bytes(blob, v->code, 4 * v->code_size); |
| |
| blob_write_bytes(blob, &v->uniforms.imm_count, sizeof(v->uniforms.imm_count)); |
| blob_write_bytes(blob, v->uniforms.imm_contents, imm_count * sizeof(v->uniforms.imm_contents)); |
| blob_write_bytes(blob, v->uniforms.imm_data, imm_count * sizeof(v->uniforms.imm_data)); |
| } |
| |
| bool |
| etna_disk_cache_retrieve(struct etna_compiler *compiler, struct etna_shader_variant *v) |
| { |
| if (!compiler->disk_cache) |
| return false; |
| |
| cache_key cache_key; |
| |
| compute_variant_key(compiler, v, cache_key); |
| |
| if (debug) { |
| char sha1[41]; |
| |
| _mesa_sha1_format(sha1, cache_key); |
| fprintf(stderr, "[mesa disk cache] retrieving variant %s: ", sha1); |
| } |
| |
| size_t size; |
| void *buffer = disk_cache_get(compiler->disk_cache, cache_key, &size); |
| |
| if (debug) |
| fprintf(stderr, "%s\n", buffer ? "found" : "missing"); |
| |
| if (!buffer) |
| return false; |
| |
| struct blob_reader blob; |
| blob_reader_init(&blob, buffer, size); |
| |
| retrieve_variant(&blob, v); |
| |
| free(buffer); |
| |
| return true; |
| } |
| |
| void |
| etna_disk_cache_store(struct etna_compiler *compiler, struct etna_shader_variant *v) |
| { |
| if (!compiler->disk_cache) |
| return; |
| |
| cache_key cache_key; |
| |
| compute_variant_key(compiler, v, cache_key); |
| |
| if (debug) { |
| char sha1[41]; |
| |
| _mesa_sha1_format(sha1, cache_key); |
| fprintf(stderr, "[mesa disk cache] storing variant %s\n", sha1); |
| } |
| |
| struct blob blob; |
| blob_init(&blob); |
| |
| store_variant(&blob, v); |
| |
| disk_cache_put(compiler->disk_cache, cache_key, blob.data, blob.size, NULL); |
| blob_finish(&blob); |
| } |