348 lines
11 KiB
C
348 lines
11 KiB
C
/*
|
|
* Copyright © 2017 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 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.
|
|
*/
|
|
|
|
/**
|
|
* @file crocus_program_cache.c
|
|
*
|
|
* The in-memory program cache. This is basically a hash table mapping
|
|
* API-specified shaders and a state key to a compiled variant. It also
|
|
* takes care of uploading shader assembly into a BO for use on the GPU.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <errno.h>
|
|
#include "pipe/p_defines.h"
|
|
#include "pipe/p_state.h"
|
|
#include "pipe/p_context.h"
|
|
#include "pipe/p_screen.h"
|
|
#include "util/u_atomic.h"
|
|
#include "util/u_upload_mgr.h"
|
|
#include "compiler/nir/nir.h"
|
|
#include "compiler/nir/nir_builder.h"
|
|
#include "intel/compiler/brw_compiler.h"
|
|
#include "intel/compiler/brw_eu.h"
|
|
#include "intel/compiler/brw_nir.h"
|
|
#include "crocus_context.h"
|
|
#include "crocus_resource.h"
|
|
|
|
struct keybox {
|
|
uint16_t size;
|
|
enum crocus_program_cache_id cache_id;
|
|
uint8_t data[0];
|
|
};
|
|
|
|
static struct keybox *
|
|
make_keybox(void *mem_ctx, enum crocus_program_cache_id cache_id,
|
|
const void *key, uint32_t key_size)
|
|
{
|
|
struct keybox *keybox =
|
|
ralloc_size(mem_ctx, sizeof(struct keybox) + key_size);
|
|
|
|
keybox->cache_id = cache_id;
|
|
keybox->size = key_size;
|
|
memcpy(keybox->data, key, key_size);
|
|
|
|
return keybox;
|
|
}
|
|
|
|
static uint32_t
|
|
keybox_hash(const void *void_key)
|
|
{
|
|
const struct keybox *key = void_key;
|
|
return _mesa_hash_data(&key->cache_id, key->size + sizeof(key->cache_id));
|
|
}
|
|
|
|
static bool
|
|
keybox_equals(const void *void_a, const void *void_b)
|
|
{
|
|
const struct keybox *a = void_a, *b = void_b;
|
|
if (a->size != b->size)
|
|
return false;
|
|
|
|
return memcmp(a->data, b->data, a->size) == 0;
|
|
}
|
|
|
|
struct crocus_compiled_shader *
|
|
crocus_find_cached_shader(struct crocus_context *ice,
|
|
enum crocus_program_cache_id cache_id,
|
|
uint32_t key_size, const void *key)
|
|
{
|
|
struct keybox *keybox = make_keybox(NULL, cache_id, key, key_size);
|
|
struct hash_entry *entry =
|
|
_mesa_hash_table_search(ice->shaders.cache, keybox);
|
|
|
|
ralloc_free(keybox);
|
|
|
|
return entry ? entry->data : NULL;
|
|
}
|
|
|
|
const void *
|
|
crocus_find_previous_compile(const struct crocus_context *ice,
|
|
enum crocus_program_cache_id cache_id,
|
|
unsigned program_string_id)
|
|
{
|
|
hash_table_foreach(ice->shaders.cache, entry) {
|
|
const struct keybox *keybox = entry->key;
|
|
const struct brw_base_prog_key *key = (const void *)keybox->data;
|
|
if (keybox->cache_id == cache_id &&
|
|
key->program_string_id == program_string_id) {
|
|
return keybox->data;
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* Look for an existing entry in the cache that has identical assembly code.
|
|
*
|
|
* This is useful for programs generating shaders at runtime, where multiple
|
|
* distinct shaders (from an API perspective) may compile to the same assembly
|
|
* in our backend. This saves space in the program cache buffer.
|
|
*/
|
|
static const struct crocus_compiled_shader *
|
|
find_existing_assembly(struct hash_table *cache, void *map,
|
|
const void *assembly, unsigned assembly_size)
|
|
{
|
|
hash_table_foreach (cache, entry) {
|
|
const struct crocus_compiled_shader *existing = entry->data;
|
|
|
|
if (existing->map_size != assembly_size)
|
|
continue;
|
|
|
|
if (memcmp(map + existing->offset, assembly, assembly_size) == 0)
|
|
return existing;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static void
|
|
crocus_cache_new_bo(struct crocus_context *ice,
|
|
uint32_t new_size)
|
|
{
|
|
struct crocus_screen *screen = (struct crocus_screen *)ice->ctx.screen;
|
|
struct crocus_bo *new_bo;
|
|
new_bo = crocus_bo_alloc(screen->bufmgr, "program cache", new_size);
|
|
|
|
void *map = crocus_bo_map(NULL, new_bo, MAP_READ | MAP_WRITE |
|
|
MAP_ASYNC | MAP_PERSISTENT);
|
|
|
|
if (ice->shaders.cache_next_offset != 0) {
|
|
memcpy(map, ice->shaders.cache_bo_map, ice->shaders.cache_next_offset);
|
|
}
|
|
|
|
crocus_bo_unmap(ice->shaders.cache_bo);
|
|
crocus_bo_unreference(ice->shaders.cache_bo);
|
|
ice->shaders.cache_bo = new_bo;
|
|
ice->shaders.cache_bo_map = map;
|
|
|
|
if (screen->devinfo.ver == 4) {
|
|
/* reemit all shaders on GEN4 only. */
|
|
ice->state.dirty |= CROCUS_DIRTY_CLIP | CROCUS_DIRTY_RASTER |
|
|
CROCUS_DIRTY_WM;
|
|
}
|
|
ice->batches[CROCUS_BATCH_RENDER].state_base_address_emitted = false;
|
|
ice->batches[CROCUS_BATCH_COMPUTE].state_base_address_emitted = false;
|
|
/* unset state base address */
|
|
}
|
|
|
|
static uint32_t
|
|
crocus_alloc_item_data(struct crocus_context *ice, uint32_t size)
|
|
{
|
|
if (ice->shaders.cache_next_offset + size > ice->shaders.cache_bo->size) {
|
|
uint32_t new_size = ice->shaders.cache_bo->size * 2;
|
|
while (ice->shaders.cache_next_offset + size > new_size)
|
|
new_size *= 2;
|
|
|
|
crocus_cache_new_bo(ice, new_size);
|
|
}
|
|
uint32_t offset = ice->shaders.cache_next_offset;
|
|
|
|
/* Programs are always 64-byte aligned, so set up the next one now */
|
|
ice->shaders.cache_next_offset = ALIGN(offset + size, 64);
|
|
return offset;
|
|
}
|
|
|
|
struct crocus_compiled_shader *
|
|
crocus_upload_shader(struct crocus_context *ice,
|
|
enum crocus_program_cache_id cache_id, uint32_t key_size,
|
|
const void *key, const void *assembly, uint32_t asm_size,
|
|
struct brw_stage_prog_data *prog_data,
|
|
uint32_t prog_data_size, uint32_t *streamout,
|
|
enum brw_param_builtin *system_values,
|
|
unsigned num_system_values, unsigned num_cbufs,
|
|
const struct crocus_binding_table *bt)
|
|
{
|
|
struct hash_table *cache = ice->shaders.cache;
|
|
struct crocus_compiled_shader *shader =
|
|
rzalloc_size(cache, sizeof(struct crocus_compiled_shader));
|
|
const struct crocus_compiled_shader *existing = find_existing_assembly(
|
|
cache, ice->shaders.cache_bo_map, assembly, asm_size);
|
|
|
|
/* If we can find a matching prog in the cache already, then reuse the
|
|
* existing stuff without creating new copy into the underlying buffer
|
|
* object. This is notably useful for programs generating shaders at
|
|
* runtime, where multiple shaders may compile to the same thing in our
|
|
* backend.
|
|
*/
|
|
if (existing) {
|
|
shader->offset = existing->offset;
|
|
shader->map_size = existing->map_size;
|
|
} else {
|
|
shader->offset = crocus_alloc_item_data(ice, asm_size);
|
|
shader->map_size = asm_size;
|
|
|
|
memcpy(ice->shaders.cache_bo_map + shader->offset, assembly, asm_size);
|
|
}
|
|
|
|
shader->prog_data = prog_data;
|
|
shader->prog_data_size = prog_data_size;
|
|
shader->streamout = streamout;
|
|
shader->system_values = system_values;
|
|
shader->num_system_values = num_system_values;
|
|
shader->num_cbufs = num_cbufs;
|
|
shader->bt = *bt;
|
|
|
|
ralloc_steal(shader, shader->prog_data);
|
|
if (prog_data_size > 16) {
|
|
ralloc_steal(shader->prog_data, prog_data->param);
|
|
ralloc_steal(shader->prog_data, prog_data->pull_param);
|
|
}
|
|
ralloc_steal(shader, shader->streamout);
|
|
ralloc_steal(shader, shader->system_values);
|
|
|
|
struct keybox *keybox = make_keybox(shader, cache_id, key, key_size);
|
|
_mesa_hash_table_insert(ice->shaders.cache, keybox, shader);
|
|
|
|
return shader;
|
|
}
|
|
|
|
bool
|
|
crocus_blorp_lookup_shader(struct blorp_batch *blorp_batch, const void *key,
|
|
uint32_t key_size, uint32_t *kernel_out,
|
|
void *prog_data_out)
|
|
{
|
|
struct blorp_context *blorp = blorp_batch->blorp;
|
|
struct crocus_context *ice = blorp->driver_ctx;
|
|
struct crocus_compiled_shader *shader =
|
|
crocus_find_cached_shader(ice, CROCUS_CACHE_BLORP, key_size, key);
|
|
|
|
if (!shader)
|
|
return false;
|
|
|
|
*kernel_out = shader->offset;
|
|
*((void **)prog_data_out) = shader->prog_data;
|
|
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
crocus_blorp_upload_shader(struct blorp_batch *blorp_batch, uint32_t stage,
|
|
const void *key, uint32_t key_size,
|
|
const void *kernel, uint32_t kernel_size,
|
|
const struct brw_stage_prog_data *prog_data_templ,
|
|
uint32_t prog_data_size, uint32_t *kernel_out,
|
|
void *prog_data_out)
|
|
{
|
|
struct blorp_context *blorp = blorp_batch->blorp;
|
|
struct crocus_context *ice = blorp->driver_ctx;
|
|
|
|
struct brw_stage_prog_data *prog_data = ralloc_size(NULL, prog_data_size);
|
|
memcpy(prog_data, prog_data_templ, prog_data_size);
|
|
|
|
struct crocus_binding_table bt;
|
|
memset(&bt, 0, sizeof(bt));
|
|
|
|
struct crocus_compiled_shader *shader = crocus_upload_shader(
|
|
ice, CROCUS_CACHE_BLORP, key_size, key, kernel, kernel_size, prog_data,
|
|
prog_data_size, NULL, NULL, 0, 0, &bt);
|
|
|
|
*kernel_out = shader->offset;
|
|
*((void **)prog_data_out) = shader->prog_data;
|
|
|
|
return true;
|
|
}
|
|
|
|
void
|
|
crocus_init_program_cache(struct crocus_context *ice)
|
|
{
|
|
struct crocus_screen *screen = (struct crocus_screen *)ice->ctx.screen;
|
|
ice->shaders.cache =
|
|
_mesa_hash_table_create(ice, keybox_hash, keybox_equals);
|
|
|
|
ice->shaders.cache_bo =
|
|
crocus_bo_alloc(screen->bufmgr, "program_cache", 16384);
|
|
ice->shaders.cache_bo_map =
|
|
crocus_bo_map(NULL, ice->shaders.cache_bo,
|
|
MAP_READ | MAP_WRITE | MAP_ASYNC | MAP_PERSISTENT);
|
|
}
|
|
|
|
void
|
|
crocus_destroy_program_cache(struct crocus_context *ice)
|
|
{
|
|
for (int i = 0; i < MESA_SHADER_STAGES; i++) {
|
|
ice->shaders.prog[i] = NULL;
|
|
}
|
|
|
|
if (ice->shaders.cache_bo) {
|
|
crocus_bo_unmap(ice->shaders.cache_bo);
|
|
crocus_bo_unreference(ice->shaders.cache_bo);
|
|
ice->shaders.cache_bo_map = NULL;
|
|
ice->shaders.cache_bo = NULL;
|
|
}
|
|
|
|
ralloc_free(ice->shaders.cache);
|
|
}
|
|
|
|
static const char *
|
|
cache_name(enum crocus_program_cache_id cache_id)
|
|
{
|
|
if (cache_id == CROCUS_CACHE_BLORP)
|
|
return "BLORP";
|
|
|
|
if (cache_id == CROCUS_CACHE_SF)
|
|
return "SF";
|
|
|
|
if (cache_id == CROCUS_CACHE_CLIP)
|
|
return "CLIP";
|
|
|
|
if (cache_id == CROCUS_CACHE_FF_GS)
|
|
return "FF_GS";
|
|
|
|
return _mesa_shader_stage_to_string(cache_id);
|
|
}
|
|
|
|
void
|
|
crocus_print_program_cache(struct crocus_context *ice)
|
|
{
|
|
struct crocus_screen *screen = (struct crocus_screen *)ice->ctx.screen;
|
|
const struct intel_device_info *devinfo = &screen->devinfo;
|
|
|
|
hash_table_foreach(ice->shaders.cache, entry) {
|
|
const struct keybox *keybox = entry->key;
|
|
struct crocus_compiled_shader *shader = entry->data;
|
|
fprintf(stderr, "%s:\n", cache_name(keybox->cache_id));
|
|
brw_disassemble(devinfo, ice->shaders.cache_bo_map + shader->offset, 0,
|
|
shader->prog_data->program_size, NULL, stderr);
|
|
}
|
|
}
|