2020-08-08 16:44:15 +01:00
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/*
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* Copyright © 2020 Google, Inc.
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* Copyright (c) 2020 Etnaviv Project
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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, sub license,
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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
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* next paragraph) shall be included in all copies or substantial portions
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* of the 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 NON-INFRINGEMENT. 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
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* DEALINGS IN THE SOFTWARE.
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*
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* Authors:
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* Christian Gmeiner <christian.gmeiner@gmail.com>
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*/
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#include "etnaviv_debug.h"
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#include "etnaviv_disk_cache.h"
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#include "nir_serialize.h"
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#define debug 0
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void
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etna_disk_cache_init(struct etna_compiler *compiler, const char *renderer)
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{
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if (!(etna_mesa_debug & ETNA_DBG_NIR))
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return;
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if (etna_mesa_debug & ETNA_DBG_NOCACHE)
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return;
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const struct build_id_note *note =
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build_id_find_nhdr_for_addr(etna_disk_cache_init);
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assert(note && build_id_length(note) == 20); /* sha1 */
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const uint8_t *id_sha1 = build_id_data(note);
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assert(id_sha1);
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char timestamp[41];
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_mesa_sha1_format(timestamp, id_sha1);
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compiler->disk_cache = disk_cache_create(renderer, timestamp, etna_mesa_debug);
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}
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void
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etna_disk_cache_init_shader_key(struct etna_compiler *compiler, struct etna_shader *shader)
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{
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if (!compiler->disk_cache)
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return;
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struct mesa_sha1 ctx;
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_mesa_sha1_init(&ctx);
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/* Serialize the NIR to a binary blob that we can hash for the disk
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* cache. Drop unnecessary information (like variable names)
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* so the serialized NIR is smaller, and also to let us detect more
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* isomorphic shaders when hashing, increasing cache hits.
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*/
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struct blob blob;
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blob_init(&blob);
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nir_serialize(&blob, shader->nir, true);
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_mesa_sha1_update(&ctx, blob.data, blob.size);
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blob_finish(&blob);
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_mesa_sha1_final(&ctx, shader->cache_key);
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}
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static void
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compute_variant_key(struct etna_compiler *compiler, struct etna_shader_variant *v,
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cache_key cache_key)
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{
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struct blob blob;
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blob_init(&blob);
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blob_write_bytes(&blob, &v->shader->cache_key, sizeof(v->shader->cache_key));
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blob_write_bytes(&blob, &v->key, sizeof(v->key));
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disk_cache_compute_key(compiler->disk_cache, blob.data, blob.size, cache_key);
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blob_finish(&blob);
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}
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static void
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retrieve_variant(struct blob_reader *blob, struct etna_shader_variant *v)
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{
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blob_copy_bytes(blob, VARIANT_CACHE_PTR(v), VARIANT_CACHE_SIZE);
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v->code = malloc(4 * v->code_size);
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blob_copy_bytes(blob, v->code, 4 * v->code_size);
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2020-11-18 14:54:16 +00:00
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blob_copy_bytes(blob, &v->uniforms.count, sizeof(v->uniforms.count));
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v->uniforms.contents = malloc(v->uniforms.count * sizeof(v->uniforms.contents));
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v->uniforms.data = malloc(v->uniforms.count * sizeof(v->uniforms.data));
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2020-08-08 16:44:15 +01:00
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2020-11-18 14:54:16 +00:00
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blob_copy_bytes(blob, v->uniforms.contents, v->uniforms.count * sizeof(v->uniforms.contents));
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blob_copy_bytes(blob, v->uniforms.data, v->uniforms.count * sizeof(v->uniforms.data));
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2020-08-08 16:44:15 +01:00
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}
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static void
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store_variant(struct blob *blob, const struct etna_shader_variant *v)
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{
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2020-11-18 14:54:16 +00:00
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const uint32_t imm_count = v->uniforms.count;
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2020-08-08 16:44:15 +01:00
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blob_write_bytes(blob, VARIANT_CACHE_PTR(v), VARIANT_CACHE_SIZE);
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blob_write_bytes(blob, v->code, 4 * v->code_size);
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2020-11-18 14:54:16 +00:00
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blob_write_bytes(blob, &v->uniforms.count, sizeof(v->uniforms.count));
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blob_write_bytes(blob, v->uniforms.contents, imm_count * sizeof(v->uniforms.contents));
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blob_write_bytes(blob, v->uniforms.data, imm_count * sizeof(v->uniforms.data));
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2020-08-08 16:44:15 +01:00
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}
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bool
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etna_disk_cache_retrieve(struct etna_compiler *compiler, struct etna_shader_variant *v)
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{
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if (!compiler->disk_cache)
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return false;
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cache_key cache_key;
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compute_variant_key(compiler, v, cache_key);
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if (debug) {
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char sha1[41];
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_mesa_sha1_format(sha1, cache_key);
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fprintf(stderr, "[mesa disk cache] retrieving variant %s: ", sha1);
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}
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size_t size;
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void *buffer = disk_cache_get(compiler->disk_cache, cache_key, &size);
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if (debug)
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fprintf(stderr, "%s\n", buffer ? "found" : "missing");
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if (!buffer)
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return false;
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struct blob_reader blob;
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blob_reader_init(&blob, buffer, size);
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retrieve_variant(&blob, v);
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free(buffer);
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return true;
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}
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void
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etna_disk_cache_store(struct etna_compiler *compiler, struct etna_shader_variant *v)
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{
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if (!compiler->disk_cache)
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return;
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cache_key cache_key;
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compute_variant_key(compiler, v, cache_key);
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if (debug) {
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char sha1[41];
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_mesa_sha1_format(sha1, cache_key);
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fprintf(stderr, "[mesa disk cache] storing variant %s\n", sha1);
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}
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struct blob blob;
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blob_init(&blob);
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store_variant(&blob, v);
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disk_cache_put(compiler->disk_cache, cache_key, blob.data, blob.size, NULL);
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blob_finish(&blob);
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}
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