summaryrefslogtreecommitdiff
path: root/src/gallium/drivers/etnaviv/etnaviv_disk_cache.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/gallium/drivers/etnaviv/etnaviv_disk_cache.c')
-rw-r--r--src/gallium/drivers/etnaviv/etnaviv_disk_cache.c186
1 files changed, 186 insertions, 0 deletions
diff --git a/src/gallium/drivers/etnaviv/etnaviv_disk_cache.c b/src/gallium/drivers/etnaviv/etnaviv_disk_cache.c
new file mode 100644
index 00000000000..5b1844d8ebc
--- /dev/null
+++ b/src/gallium/drivers/etnaviv/etnaviv_disk_cache.c
@@ -0,0 +1,186 @@
+/*
+ * 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);
+}