+++ /dev/null
-/*
- * Copyright (c) 2014 - 2015 Intel Corporation
- *
- * 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 "util/ralloc.h"
-#include "brw_context.h"
-#include "brw_cs.h"
-#include "brw_fs.h"
-#include "brw_eu.h"
-#include "brw_wm.h"
-#include "intel_mipmap_tree.h"
-#include "brw_state.h"
-#include "intel_batchbuffer.h"
-
-extern "C"
-bool
-brw_cs_prog_data_compare(const void *in_a, const void *in_b)
-{
- const struct brw_cs_prog_data *a =
- (const struct brw_cs_prog_data *)in_a;
- const struct brw_cs_prog_data *b =
- (const struct brw_cs_prog_data *)in_b;
-
- /* Compare the base structure. */
- if (!brw_stage_prog_data_compare(&a->base, &b->base))
- return false;
-
- /* Compare the rest of the structure. */
- const unsigned offset = sizeof(struct brw_stage_prog_data);
- if (memcmp(((char *) a) + offset, ((char *) b) + offset,
- sizeof(struct brw_cs_prog_data) - offset))
- return false;
-
- return true;
-}
-
-
-const unsigned *
-brw_cs_emit(struct brw_context *brw,
- void *mem_ctx,
- const struct brw_cs_prog_key *key,
- struct brw_cs_prog_data *prog_data,
- struct gl_compute_program *cp,
- struct gl_shader_program *prog,
- unsigned *final_assembly_size)
-{
- bool start_busy = false;
- double start_time = 0;
-
- if (unlikely(brw->perf_debug)) {
- start_busy = (brw->batch.last_bo &&
- drm_intel_bo_busy(brw->batch.last_bo));
- start_time = get_time();
- }
-
- struct brw_shader *shader =
- (struct brw_shader *) prog->_LinkedShaders[MESA_SHADER_COMPUTE];
-
- if (unlikely(INTEL_DEBUG & DEBUG_CS))
- brw_dump_ir("compute", prog, &shader->base, &cp->Base);
-
- prog_data->local_size[0] = cp->LocalSize[0];
- prog_data->local_size[1] = cp->LocalSize[1];
- prog_data->local_size[2] = cp->LocalSize[2];
- unsigned local_workgroup_size =
- cp->LocalSize[0] * cp->LocalSize[1] * cp->LocalSize[2];
-
- cfg_t *cfg = NULL;
- const char *fail_msg = NULL;
-
- int st_index = -1;
- if (INTEL_DEBUG & DEBUG_SHADER_TIME)
- st_index = brw_get_shader_time_index(brw, prog, &cp->Base, ST_CS);
-
- /* Now the main event: Visit the shader IR and generate our CS IR for it.
- */
- fs_visitor v8(brw->intelScreen->compiler, brw,
- mem_ctx, MESA_SHADER_COMPUTE, key, &prog_data->base, prog,
- &cp->Base, 8, st_index);
- if (!v8.run_cs()) {
- fail_msg = v8.fail_msg;
- } else if (local_workgroup_size <= 8 * brw->max_cs_threads) {
- cfg = v8.cfg;
- prog_data->simd_size = 8;
- }
-
- fs_visitor v16(brw->intelScreen->compiler, brw,
- mem_ctx, MESA_SHADER_COMPUTE, key, &prog_data->base, prog,
- &cp->Base, 16, st_index);
- if (likely(!(INTEL_DEBUG & DEBUG_NO16)) &&
- !fail_msg && !v8.simd16_unsupported &&
- local_workgroup_size <= 16 * brw->max_cs_threads) {
- /* Try a SIMD16 compile */
- v16.import_uniforms(&v8);
- if (!v16.run_cs()) {
- perf_debug("SIMD16 shader failed to compile: %s", v16.fail_msg);
- if (!cfg) {
- fail_msg =
- "Couldn't generate SIMD16 program and not "
- "enough threads for SIMD8";
- }
- } else {
- cfg = v16.cfg;
- prog_data->simd_size = 16;
- }
- }
-
- if (unlikely(cfg == NULL)) {
- assert(fail_msg);
- prog->LinkStatus = false;
- ralloc_strcat(&prog->InfoLog, fail_msg);
- _mesa_problem(NULL, "Failed to compile compute shader: %s\n",
- fail_msg);
- return NULL;
- }
-
- fs_generator g(brw->intelScreen->compiler, brw,
- mem_ctx, (void*) key, &prog_data->base, &cp->Base,
- v8.promoted_constants, v8.runtime_check_aads_emit, "CS");
- if (INTEL_DEBUG & DEBUG_CS) {
- char *name = ralloc_asprintf(mem_ctx, "%s compute shader %d",
- prog->Label ? prog->Label : "unnamed",
- prog->Name);
- g.enable_debug(name);
- }
-
- g.generate_code(cfg, prog_data->simd_size);
-
- if (unlikely(brw->perf_debug) && shader) {
- if (shader->compiled_once) {
- _mesa_problem(&brw->ctx, "CS programs shouldn't need recompiles");
- }
- shader->compiled_once = true;
-
- if (start_busy && !drm_intel_bo_busy(brw->batch.last_bo)) {
- perf_debug("CS compile took %.03f ms and stalled the GPU\n",
- (get_time() - start_time) * 1000);
- }
- }
-
- return g.get_assembly(final_assembly_size);
-}
-
-static bool
-brw_codegen_cs_prog(struct brw_context *brw,
- struct gl_shader_program *prog,
- struct brw_compute_program *cp,
- struct brw_cs_prog_key *key)
-{
- struct gl_context *ctx = &brw->ctx;
- const GLuint *program;
- void *mem_ctx = ralloc_context(NULL);
- GLuint program_size;
- struct brw_cs_prog_data prog_data;
-
- struct gl_shader *cs = prog->_LinkedShaders[MESA_SHADER_COMPUTE];
- assert (cs);
-
- memset(&prog_data, 0, sizeof(prog_data));
-
- /* Allocate the references to the uniforms that will end up in the
- * prog_data associated with the compiled program, and which will be freed
- * by the state cache.
- */
- int param_count = cs->num_uniform_components +
- cs->NumImages * BRW_IMAGE_PARAM_SIZE;
-
- /* The backend also sometimes adds params for texture size. */
- param_count += 2 * ctx->Const.Program[MESA_SHADER_COMPUTE].MaxTextureImageUnits;
- prog_data.base.param =
- rzalloc_array(NULL, const gl_constant_value *, param_count);
- prog_data.base.pull_param =
- rzalloc_array(NULL, const gl_constant_value *, param_count);
- prog_data.base.image_param =
- rzalloc_array(NULL, struct brw_image_param, cs->NumImages);
- prog_data.base.nr_params = param_count;
- prog_data.base.nr_image_params = cs->NumImages;
-
- program = brw_cs_emit(brw, mem_ctx, key, &prog_data,
- &cp->program, prog, &program_size);
- if (program == NULL) {
- ralloc_free(mem_ctx);
- return false;
- }
-
- if (prog_data.base.total_scratch) {
- brw_get_scratch_bo(brw, &brw->cs.base.scratch_bo,
- prog_data.base.total_scratch * brw->max_cs_threads);
- }
-
- if (unlikely(INTEL_DEBUG & DEBUG_CS))
- fprintf(stderr, "\n");
-
- brw_upload_cache(&brw->cache, BRW_CACHE_CS_PROG,
- key, sizeof(*key),
- program, program_size,
- &prog_data, sizeof(prog_data),
- &brw->cs.base.prog_offset, &brw->cs.prog_data);
- ralloc_free(mem_ctx);
-
- return true;
-}
-
-
-static void
-brw_cs_populate_key(struct brw_context *brw, struct brw_cs_prog_key *key)
-{
- /* BRW_NEW_COMPUTE_PROGRAM */
- const struct brw_compute_program *cp =
- (struct brw_compute_program *) brw->compute_program;
-
- memset(key, 0, sizeof(*key));
-
- /* The unique compute program ID */
- key->program_string_id = cp->id;
-}
-
-
-extern "C"
-void
-brw_upload_cs_prog(struct brw_context *brw)
-{
- struct gl_context *ctx = &brw->ctx;
- struct brw_cs_prog_key key;
- struct brw_compute_program *cp = (struct brw_compute_program *)
- brw->compute_program;
-
- if (!cp)
- return;
-
- if (!brw_state_dirty(brw, 0, BRW_NEW_COMPUTE_PROGRAM))
- return;
-
- brw_cs_populate_key(brw, &key);
-
- if (!brw_search_cache(&brw->cache, BRW_CACHE_CS_PROG,
- &key, sizeof(key),
- &brw->cs.base.prog_offset, &brw->cs.prog_data)) {
- bool success =
- brw_codegen_cs_prog(brw,
- ctx->Shader.CurrentProgram[MESA_SHADER_COMPUTE],
- cp, &key);
- (void) success;
- assert(success);
- }
- brw->cs.base.prog_data = &brw->cs.prog_data->base;
-}
-
-
-extern "C" bool
-brw_cs_precompile(struct gl_context *ctx,
- struct gl_shader_program *shader_prog,
- struct gl_program *prog)
-{
- struct brw_context *brw = brw_context(ctx);
- struct brw_cs_prog_key key;
-
- struct gl_compute_program *cp = (struct gl_compute_program *) prog;
- struct brw_compute_program *bcp = brw_compute_program(cp);
-
- memset(&key, 0, sizeof(key));
- key.program_string_id = bcp->id;
-
- brw_setup_tex_for_precompile(brw, &key.tex, prog);
-
- uint32_t old_prog_offset = brw->cs.base.prog_offset;
- struct brw_cs_prog_data *old_prog_data = brw->cs.prog_data;
-
- bool success = brw_codegen_cs_prog(brw, shader_prog, bcp, &key);
-
- brw->cs.base.prog_offset = old_prog_offset;
- brw->cs.prog_data = old_prog_data;
-
- return success;
-}
-
-
-static unsigned
-get_cs_thread_count(const struct brw_cs_prog_data *cs_prog_data)
-{
- const unsigned simd_size = cs_prog_data->simd_size;
- unsigned group_size = cs_prog_data->local_size[0] *
- cs_prog_data->local_size[1] * cs_prog_data->local_size[2];
-
- return (group_size + simd_size - 1) / simd_size;
-}
-
-
-static void
-brw_upload_cs_state(struct brw_context *brw)
-{
- if (!brw->cs.prog_data)
- return;
-
- uint32_t offset;
- uint32_t *desc = (uint32_t*) brw_state_batch(brw, AUB_TRACE_SURFACE_STATE,
- 8 * 4, 64, &offset);
- struct brw_stage_state *stage_state = &brw->cs.base;
- struct brw_cs_prog_data *cs_prog_data = brw->cs.prog_data;
- struct brw_stage_prog_data *prog_data = &cs_prog_data->base;
-
- if (INTEL_DEBUG & DEBUG_SHADER_TIME) {
- brw->vtbl.emit_buffer_surface_state(
- brw, &stage_state->surf_offset[
- prog_data->binding_table.shader_time_start],
- brw->shader_time.bo, 0, BRW_SURFACEFORMAT_RAW,
- brw->shader_time.bo->size, 1, true);
- }
-
- uint32_t *bind = (uint32_t*) brw_state_batch(brw, AUB_TRACE_BINDING_TABLE,
- prog_data->binding_table.size_bytes,
- 32, &stage_state->bind_bo_offset);
-
- unsigned threads = get_cs_thread_count(cs_prog_data);
-
- uint32_t dwords = brw->gen < 8 ? 8 : 9;
- BEGIN_BATCH(dwords);
- OUT_BATCH(MEDIA_VFE_STATE << 16 | (dwords - 2));
-
- if (prog_data->total_scratch) {
- if (brw->gen >= 8)
- OUT_RELOC64(stage_state->scratch_bo,
- I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER,
- ffs(prog_data->total_scratch) - 11);
- else
- OUT_RELOC(stage_state->scratch_bo,
- I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER,
- ffs(prog_data->total_scratch) - 11);
- } else {
- OUT_BATCH(0);
- if (brw->gen >= 8)
- OUT_BATCH(0);
- }
-
- const uint32_t vfe_num_urb_entries = brw->gen >= 8 ? 2 : 0;
- const uint32_t vfe_gpgpu_mode =
- brw->gen == 7 ? SET_FIELD(1, GEN7_MEDIA_VFE_STATE_GPGPU_MODE) : 0;
- OUT_BATCH(SET_FIELD(brw->max_cs_threads - 1, MEDIA_VFE_STATE_MAX_THREADS) |
- SET_FIELD(vfe_num_urb_entries, MEDIA_VFE_STATE_URB_ENTRIES) |
- SET_FIELD(1, MEDIA_VFE_STATE_RESET_GTW_TIMER) |
- SET_FIELD(1, MEDIA_VFE_STATE_BYPASS_GTW) |
- vfe_gpgpu_mode);
-
- OUT_BATCH(0);
- const uint32_t vfe_urb_allocation = brw->gen >= 8 ? 2 : 0;
- OUT_BATCH(SET_FIELD(vfe_urb_allocation, MEDIA_VFE_STATE_URB_ALLOC));
- OUT_BATCH(0);
- OUT_BATCH(0);
- OUT_BATCH(0);
- ADVANCE_BATCH();
-
- /* BRW_NEW_SURFACES and BRW_NEW_*_CONSTBUF */
- memcpy(bind, stage_state->surf_offset,
- prog_data->binding_table.size_bytes);
-
- memset(desc, 0, 8 * 4);
-
- int dw = 0;
- desc[dw++] = brw->cs.base.prog_offset;
- if (brw->gen >= 8)
- desc[dw++] = 0; /* Kernel Start Pointer High */
- desc[dw++] = 0;
- desc[dw++] = 0;
- desc[dw++] = stage_state->bind_bo_offset;
- desc[dw++] = 0;
- const uint32_t media_threads =
- brw->gen >= 8 ?
- SET_FIELD(threads, GEN8_MEDIA_GPGPU_THREAD_COUNT) :
- SET_FIELD(threads, MEDIA_GPGPU_THREAD_COUNT);
- assert(threads <= brw->max_cs_threads);
- desc[dw++] = media_threads;
-
- BEGIN_BATCH(4);
- OUT_BATCH(MEDIA_INTERFACE_DESCRIPTOR_LOAD << 16 | (4 - 2));
- OUT_BATCH(0);
- OUT_BATCH(8 * 4);
- OUT_BATCH(offset);
- ADVANCE_BATCH();
-}
-
-
-extern "C"
-const struct brw_tracked_state brw_cs_state = {
- /* explicit initialisers aren't valid C++, comment
- * them for documentation purposes */
- /* .dirty = */{
- /* .mesa = */ 0,
- /* .brw = */ BRW_NEW_CS_PROG_DATA,
- },
- /* .emit = */ brw_upload_cs_state
-};
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