| /* |
| * Copyright © 2020 Google, Inc. |
| * |
| * 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 "nir_serialize.h" |
| |
| #include "ir3_compiler.h" |
| #include "ir3_nir.h" |
| |
| #define debug 0 |
| |
| /* |
| * Shader disk-cache implementation. |
| * |
| * Note that at least in the EGL_ANDROID_blob_cache, we should never |
| * rely on inter-dependencies between different cache entries: |
| * |
| * No guarantees are made as to whether a given key/value pair is present in |
| * the cache after the set call. If a different value has been associated |
| * with the given key in the past then it is undefined which value, if any, |
| * is associated with the key after the set call. Note that while there are |
| * no guarantees, the cache implementation should attempt to cache the most |
| * recently set value for a given key. |
| * |
| * for this reason, because binning pass variants share const_state with |
| * their draw-pass counterpart, both variants are serialized together. |
| */ |
| |
| void |
| ir3_disk_cache_init(struct ir3_compiler *compiler) |
| { |
| if (ir3_shader_debug & IR3_DBG_NOCACHE) |
| return; |
| |
| const char *renderer = fd_dev_name(compiler->dev_id); |
| const struct build_id_note *note = |
| build_id_find_nhdr_for_addr(ir3_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); |
| |
| uint64_t driver_flags = ir3_shader_debug; |
| if (compiler->options.robust_buffer_access2) |
| driver_flags |= IR3_DBG_ROBUST_UBO_ACCESS; |
| compiler->disk_cache = disk_cache_create(renderer, timestamp, driver_flags); |
| } |
| |
| void |
| ir3_disk_cache_init_shader_key(struct ir3_compiler *compiler, |
| struct ir3_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_update(&ctx, &shader->api_wavesize, |
| sizeof(shader->api_wavesize)); |
| _mesa_sha1_update(&ctx, &shader->real_wavesize, |
| sizeof(shader->real_wavesize)); |
| |
| /* Note that on some gens stream-out is lowered in ir3 to stg. For later |
| * gens we maybe don't need to include stream-out in the cache key. |
| */ |
| _mesa_sha1_update(&ctx, &shader->stream_output, |
| sizeof(shader->stream_output)); |
| |
| _mesa_sha1_final(&ctx, shader->cache_key); |
| } |
| |
| static void |
| compute_variant_key(struct ir3_shader *shader, struct ir3_shader_variant *v, |
| cache_key cache_key) |
| { |
| struct blob blob; |
| blob_init(&blob); |
| |
| blob_write_bytes(&blob, &shader->cache_key, sizeof(shader->cache_key)); |
| blob_write_bytes(&blob, &v->key, sizeof(v->key)); |
| blob_write_uint8(&blob, v->binning_pass); |
| |
| disk_cache_compute_key(shader->compiler->disk_cache, blob.data, blob.size, |
| cache_key); |
| |
| blob_finish(&blob); |
| } |
| |
| static void |
| retrieve_variant(struct blob_reader *blob, struct ir3_shader_variant *v) |
| { |
| blob_copy_bytes(blob, VARIANT_CACHE_PTR(v), VARIANT_CACHE_SIZE); |
| |
| /* |
| * pointers need special handling: |
| */ |
| |
| v->bin = rzalloc_size(v, v->info.size); |
| blob_copy_bytes(blob, v->bin, v->info.size); |
| |
| if (!v->binning_pass) { |
| blob_copy_bytes(blob, v->const_state, sizeof(*v->const_state)); |
| unsigned immeds_sz = v->const_state->immediates_size * |
| sizeof(v->const_state->immediates[0]); |
| v->const_state->immediates = ralloc_size(v->const_state, immeds_sz); |
| blob_copy_bytes(blob, v->const_state->immediates, immeds_sz); |
| } |
| } |
| |
| static void |
| store_variant(struct blob *blob, struct ir3_shader_variant *v) |
| { |
| blob_write_bytes(blob, VARIANT_CACHE_PTR(v), VARIANT_CACHE_SIZE); |
| |
| /* |
| * pointers need special handling: |
| */ |
| |
| blob_write_bytes(blob, v->bin, v->info.size); |
| |
| /* No saving constant_data, it's already baked into bin at this point. */ |
| |
| if (!v->binning_pass) { |
| blob_write_bytes(blob, v->const_state, sizeof(*v->const_state)); |
| unsigned immeds_sz = v->const_state->immediates_size * |
| sizeof(v->const_state->immediates[0]); |
| blob_write_bytes(blob, v->const_state->immediates, immeds_sz); |
| } |
| } |
| |
| struct ir3_shader_variant * |
| ir3_retrieve_variant(struct blob_reader *blob, struct ir3_compiler *compiler, |
| void *mem_ctx) |
| { |
| struct ir3_shader_variant *v = rzalloc_size(mem_ctx, sizeof(*v)); |
| |
| v->id = 0; |
| v->compiler = compiler; |
| v->binning_pass = false; |
| v->nonbinning = NULL; |
| v->binning = NULL; |
| blob_copy_bytes(blob, &v->key, sizeof(v->key)); |
| v->type = blob_read_uint32(blob); |
| v->mergedregs = blob_read_uint32(blob); |
| v->const_state = rzalloc_size(v, sizeof(*v->const_state)); |
| |
| retrieve_variant(blob, v); |
| |
| if (v->type == MESA_SHADER_VERTEX && ir3_has_binning_vs(&v->key)) { |
| v->binning = rzalloc_size(v, sizeof(*v->binning)); |
| v->binning->id = 0; |
| v->binning->compiler = compiler; |
| v->binning->binning_pass = true; |
| v->binning->nonbinning = v; |
| v->binning->key = v->key; |
| v->binning->type = MESA_SHADER_VERTEX; |
| v->binning->mergedregs = v->mergedregs; |
| v->binning->const_state = v->const_state; |
| |
| retrieve_variant(blob, v->binning); |
| } |
| |
| return v; |
| } |
| |
| void |
| ir3_store_variant(struct blob *blob, struct ir3_shader_variant *v) |
| { |
| blob_write_bytes(blob, &v->key, sizeof(v->key)); |
| blob_write_uint32(blob, v->type); |
| blob_write_uint32(blob, v->mergedregs); |
| |
| store_variant(blob, v); |
| |
| if (v->type == MESA_SHADER_VERTEX && ir3_has_binning_vs(&v->key)) { |
| store_variant(blob, v->binning); |
| } |
| } |
| |
| bool |
| ir3_disk_cache_retrieve(struct ir3_shader *shader, |
| struct ir3_shader_variant *v) |
| { |
| if (!shader->compiler->disk_cache) |
| return false; |
| |
| cache_key cache_key; |
| |
| compute_variant_key(shader, 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(shader->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); |
| |
| if (v->binning) |
| retrieve_variant(&blob, v->binning); |
| |
| free(buffer); |
| |
| return true; |
| } |
| |
| void |
| ir3_disk_cache_store(struct ir3_shader *shader, |
| struct ir3_shader_variant *v) |
| { |
| if (!shader->compiler->disk_cache) |
| return; |
| |
| cache_key cache_key; |
| |
| compute_variant_key(shader, 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); |
| |
| if (v->binning) |
| store_variant(&blob, v->binning); |
| |
| disk_cache_put(shader->compiler->disk_cache, cache_key, blob.data, blob.size, NULL); |
| blob_finish(&blob); |
| } |