--- /dev/null
+/*
+ * Copyright © 2017 Timothy Arceri
+ *
+ * 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 <stdio.h>
+
+#include "st_program.h"
+#include "st_shader_cache.h"
+#include "compiler/glsl/program.h"
+#include "pipe/p_shader_tokens.h"
+#include "program/ir_to_mesa.h"
+#include "util/u_memory.h"
+
+static void
+write_stream_out_to_cache(struct blob *blob,
+ struct pipe_shader_state *tgsi)
+{
+ blob_write_bytes(blob, &tgsi->stream_output,
+ sizeof(tgsi->stream_output));
+}
+
+static void
+write_tgsi_to_cache(struct blob *blob, struct pipe_shader_state *tgsi,
+ struct st_context *st, unsigned char *sha1,
+ unsigned num_tokens)
+{
+ blob_write_uint32(blob, num_tokens);
+ blob_write_bytes(blob, tgsi->tokens,
+ num_tokens * sizeof(struct tgsi_token));
+
+ disk_cache_put(st->ctx->Cache, sha1, blob->data, blob->size);
+}
+
+/**
+ * Store tgsi and any other required state in on-disk shader cache.
+ */
+void
+st_store_tgsi_in_disk_cache(struct st_context *st, struct gl_program *prog,
+ struct pipe_shader_state *out_state,
+ unsigned num_tokens)
+{
+ if (!st->ctx->Cache)
+ return;
+
+ /* Exit early when we are dealing with a ff shader with no source file to
+ * generate a source from.
+ */
+ if (*prog->sh.data->sha1 == 0)
+ return;
+
+ unsigned char *sha1;
+ struct blob *blob = blob_create(NULL);
+
+ switch (prog->info.stage) {
+ case MESA_SHADER_VERTEX: {
+ struct st_vertex_program *stvp = (struct st_vertex_program *) prog;
+ sha1 = stvp->sha1;
+
+ blob_write_uint32(blob, stvp->num_inputs);
+ blob_write_bytes(blob, stvp->index_to_input,
+ sizeof(stvp->index_to_input));
+ blob_write_bytes(blob, stvp->result_to_output,
+ sizeof(stvp->result_to_output));
+
+ write_stream_out_to_cache(blob, &stvp->tgsi);
+ write_tgsi_to_cache(blob, &stvp->tgsi, st, sha1, num_tokens);
+ break;
+ }
+ case MESA_SHADER_TESS_CTRL: {
+ struct st_tessctrl_program *stcp = (struct st_tessctrl_program *) prog;
+ sha1 = stcp->sha1;
+
+ write_stream_out_to_cache(blob, out_state);
+ write_tgsi_to_cache(blob, out_state, st, sha1, num_tokens);
+ break;
+ }
+ case MESA_SHADER_TESS_EVAL: {
+ struct st_tesseval_program *step = (struct st_tesseval_program *) prog;
+ sha1 = step->sha1;
+
+ write_stream_out_to_cache(blob, out_state);
+ write_tgsi_to_cache(blob, out_state, st, sha1, num_tokens);
+ break;
+ }
+ case MESA_SHADER_GEOMETRY: {
+ struct st_geometry_program *stgp = (struct st_geometry_program *) prog;
+ sha1 = stgp->sha1;
+
+ write_stream_out_to_cache(blob, out_state);
+ write_tgsi_to_cache(blob, out_state, st, sha1, num_tokens);
+ break;
+ }
+ case MESA_SHADER_FRAGMENT: {
+ struct st_fragment_program *stfp = (struct st_fragment_program *) prog;
+ sha1 = stfp->sha1;
+
+ write_tgsi_to_cache(blob, &stfp->tgsi, st, sha1, num_tokens);
+ break;
+ }
+ case MESA_SHADER_COMPUTE: {
+ struct st_compute_program *stcp = (struct st_compute_program *) prog;
+ sha1 = stcp->sha1;
+
+ write_tgsi_to_cache(blob, out_state, st, sha1, num_tokens);
+ break;
+ }
+ default:
+ unreachable("Unsupported stage");
+ }
+
+ if (st->ctx->_Shader->Flags & GLSL_CACHE_INFO) {
+ char sha1_buf[41];
+ _mesa_sha1_format(sha1_buf, sha1);
+ fprintf(stderr, "putting %s tgsi_tokens in cache: %s\n",
+ _mesa_shader_stage_to_string(prog->info.stage), sha1_buf);
+ }
+
+ ralloc_free(blob);
+}
+
+static void
+read_stream_out_from_cache(struct blob_reader *blob_reader,
+ struct pipe_shader_state *tgsi)
+{
+ blob_copy_bytes(blob_reader, (uint8_t *) &tgsi->stream_output,
+ sizeof(tgsi->stream_output));
+}
+
+static void
+read_tgsi_from_cache(struct blob_reader *blob_reader,
+ const struct tgsi_token **tokens)
+{
+ uint32_t num_tokens = blob_read_uint32(blob_reader);
+ unsigned tokens_size = num_tokens * sizeof(struct tgsi_token);
+ *tokens = (const struct tgsi_token*) MALLOC(tokens_size);
+ blob_copy_bytes(blob_reader, (uint8_t *) *tokens, tokens_size);
+}
+
+bool
+st_load_tgsi_from_disk_cache(struct gl_context *ctx,
+ struct gl_shader_program *prog)
+{
+ if (!ctx->Cache)
+ return false;
+
+ unsigned char *stage_sha1[MESA_SHADER_STAGES];
+ char sha1_buf[41];
+
+ /* Compute and store sha1 for each stage. These will be reused by the
+ * cache store pass if we fail to find the cached tgsi.
+ */
+ for (unsigned i = 0; i < MESA_SHADER_STAGES; i++) {
+ if (prog->_LinkedShaders[i] == NULL)
+ continue;
+
+ char *buf = ralloc_strdup(NULL, "tgsi_tokens ");
+ _mesa_sha1_format(sha1_buf,
+ prog->_LinkedShaders[i]->Program->sh.data->sha1);
+ ralloc_strcat(&buf, sha1_buf);
+
+ struct gl_program *glprog = prog->_LinkedShaders[i]->Program;
+ switch (glprog->info.stage) {
+ case MESA_SHADER_VERTEX: {
+ struct st_vertex_program *stvp = (struct st_vertex_program *) glprog;
+ stage_sha1[i] = stvp->sha1;
+ ralloc_strcat(&buf, " vs");
+ _mesa_sha1_compute(buf, strlen(buf), stage_sha1[i]);
+ break;
+ }
+ case MESA_SHADER_TESS_CTRL: {
+ struct st_tessctrl_program *stcp =
+ (struct st_tessctrl_program *) glprog;
+ stage_sha1[i] = stcp->sha1;
+ ralloc_strcat(&buf, " tcs");
+ _mesa_sha1_compute(buf, strlen(buf), stage_sha1[i]);
+ break;
+ }
+ case MESA_SHADER_TESS_EVAL: {
+ struct st_tesseval_program *step =
+ (struct st_tesseval_program *) glprog;
+ stage_sha1[i] = step->sha1;
+ ralloc_strcat(&buf, " tes");
+ _mesa_sha1_compute(buf, strlen(buf), stage_sha1[i]);
+ break;
+ }
+ case MESA_SHADER_GEOMETRY: {
+ struct st_geometry_program *stgp =
+ (struct st_geometry_program *) glprog;
+ stage_sha1[i] = stgp->sha1;
+ ralloc_strcat(&buf, " gs");
+ _mesa_sha1_compute(buf, strlen(buf), stage_sha1[i]);
+ break;
+ }
+ case MESA_SHADER_FRAGMENT: {
+ struct st_fragment_program *stfp =
+ (struct st_fragment_program *) glprog;
+ stage_sha1[i] = stfp->sha1;
+ ralloc_strcat(&buf, " fs");
+ _mesa_sha1_compute(buf, strlen(buf), stage_sha1[i]);
+ break;
+ }
+ case MESA_SHADER_COMPUTE: {
+ struct st_compute_program *stcp =
+ (struct st_compute_program *) glprog;
+ stage_sha1[i] = stcp->sha1;
+ ralloc_strcat(&buf, " cs");
+ _mesa_sha1_compute(buf, strlen(buf), stage_sha1[i]);
+ break;
+ }
+ default:
+ unreachable("Unsupported stage");
+ }
+
+ ralloc_free(buf);
+ }
+
+ struct st_context *st = st_context(ctx);
+ for (unsigned i = 0; i < MESA_SHADER_STAGES; i++) {
+ if (prog->_LinkedShaders[i] == NULL)
+ continue;
+
+ unsigned char *sha1 = stage_sha1[i];
+ size_t size;
+ uint8_t *buffer = (uint8_t *) disk_cache_get(ctx->Cache, sha1, &size);
+ if (buffer) {
+ struct blob_reader blob_reader;
+ blob_reader_init(&blob_reader, buffer, size);
+
+ struct gl_program *glprog = prog->_LinkedShaders[i]->Program;
+ switch (glprog->info.stage) {
+ case MESA_SHADER_VERTEX: {
+ struct st_vertex_program *stvp =
+ (struct st_vertex_program *) glprog;
+
+ st_release_vp_variants(st, stvp);
+
+ stvp->num_inputs = blob_read_uint32(&blob_reader);
+ blob_copy_bytes(&blob_reader, (uint8_t *) stvp->index_to_input,
+ sizeof(stvp->index_to_input));
+ blob_copy_bytes(&blob_reader, (uint8_t *) stvp->result_to_output,
+ sizeof(stvp->result_to_output));
+
+ read_stream_out_from_cache(&blob_reader, &stvp->tgsi);
+ read_tgsi_from_cache(&blob_reader, &stvp->tgsi.tokens);
+
+ if (st->vp == stvp)
+ st->dirty |= ST_NEW_VERTEX_PROGRAM(st, stvp);
+
+ break;
+ }
+ case MESA_SHADER_TESS_CTRL: {
+ struct st_tessctrl_program *sttcp =
+ (struct st_tessctrl_program *) glprog;
+
+ st_release_basic_variants(st, sttcp->Base.Target,
+ &sttcp->variants, &sttcp->tgsi);
+
+ read_stream_out_from_cache(&blob_reader, &sttcp->tgsi);
+ read_tgsi_from_cache(&blob_reader, &sttcp->tgsi.tokens);
+
+ if (st->tcp == sttcp)
+ st->dirty |= sttcp->affected_states;
+
+ break;
+ }
+ case MESA_SHADER_TESS_EVAL: {
+ struct st_tesseval_program *sttep =
+ (struct st_tesseval_program *) glprog;
+
+ st_release_basic_variants(st, sttep->Base.Target,
+ &sttep->variants, &sttep->tgsi);
+
+ read_stream_out_from_cache(&blob_reader, &sttep->tgsi);
+ read_tgsi_from_cache(&blob_reader, &sttep->tgsi.tokens);
+
+ if (st->tep == sttep)
+ st->dirty |= sttep->affected_states;
+
+ break;
+ }
+ case MESA_SHADER_GEOMETRY: {
+ struct st_geometry_program *stgp =
+ (struct st_geometry_program *) glprog;
+
+ st_release_basic_variants(st, stgp->Base.Target, &stgp->variants,
+ &stgp->tgsi);
+
+ read_stream_out_from_cache(&blob_reader, &stgp->tgsi);
+ read_tgsi_from_cache(&blob_reader, &stgp->tgsi.tokens);
+
+ if (st->gp == stgp)
+ st->dirty |= stgp->affected_states;
+
+ break;
+ }
+ case MESA_SHADER_FRAGMENT: {
+ struct st_fragment_program *stfp =
+ (struct st_fragment_program *) glprog;
+
+ st_release_fp_variants(st, stfp);
+
+ read_tgsi_from_cache(&blob_reader, &stfp->tgsi.tokens);
+
+ if (st->fp == stfp)
+ st->dirty |= stfp->affected_states;
+
+ break;
+ }
+ case MESA_SHADER_COMPUTE: {
+ struct st_compute_program *stcp =
+ (struct st_compute_program *) glprog;
+
+ st_release_cp_variants(st, stcp);
+
+ read_tgsi_from_cache(&blob_reader,
+ (const struct tgsi_token**) &stcp->tgsi.prog);
+
+ stcp->tgsi.req_local_mem = stcp->Base.info.cs.shared_size;
+ stcp->tgsi.req_private_mem = 0;
+ stcp->tgsi.req_input_mem = 0;
+
+ if (st->cp == stcp)
+ st->dirty |= stcp->affected_states;
+
+ break;
+ }
+ default:
+ unreachable("Unsupported stage");
+ }
+
+ if (blob_reader.current != blob_reader.end || blob_reader.overrun) {
+ /* Something very bad has gone wrong discard the item from the
+ * cache and rebuild/link from source.
+ */
+ assert(!"Invalid TGSI shader disk cache item!");
+
+ if (ctx->_Shader->Flags & GLSL_CACHE_INFO) {
+ fprintf(stderr, "Error reading program from cache (invalid "
+ "TGSI cache item)\n");
+ }
+
+ disk_cache_remove(ctx->Cache, sha1);
+
+ goto fallback_recompile;
+ }
+
+ if (ctx->_Shader->Flags & GLSL_CACHE_INFO) {
+ _mesa_sha1_format(sha1_buf, sha1);
+ fprintf(stderr, "%s tgsi_tokens retrieved from cache: %s\n",
+ _mesa_shader_stage_to_string(i), sha1_buf);
+ }
+
+ st_set_prog_affected_state_flags(glprog);
+ _mesa_associate_uniform_storage(ctx, prog, glprog->Parameters);
+
+ free(buffer);
+ } else {
+ /* Failed to find a matching cached shader so fallback to recompile.
+ */
+ if (ctx->_Shader->Flags & GLSL_CACHE_INFO) {
+ fprintf(stderr, "TGSI cache item not found falling back to "
+ "compile.\n");
+ }
+
+ goto fallback_recompile;
+ }
+ }
+
+ return true;
+
+fallback_recompile:
+
+ /* GLSL IR was compiled and linked so just fallback to the regular
+ * glsl to tgsi path.
+ */
+ if (prog->data->LinkStatus != linking_skipped)
+ return false;
+
+ for (unsigned i = 0; i < prog->NumShaders; i++) {
+ _mesa_glsl_compile_shader(ctx, prog->Shaders[i], false, false, true);
+ }
+
+ prog->data->cache_fallback = true;
+ _mesa_glsl_link_shader(ctx, prog);
+
+ return true;
+}
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