diff options
Diffstat (limited to 'src/gallium/drivers/i965simple/brw_state_cache.c')
| -rw-r--r-- | src/gallium/drivers/i965simple/brw_state_cache.c | 443 |
1 files changed, 443 insertions, 0 deletions
diff --git a/src/gallium/drivers/i965simple/brw_state_cache.c b/src/gallium/drivers/i965simple/brw_state_cache.c new file mode 100644 index 00000000000..b3a5124461d --- /dev/null +++ b/src/gallium/drivers/i965simple/brw_state_cache.c @@ -0,0 +1,443 @@ +/* + Copyright (C) Intel Corp. 2006. All Rights Reserved. + Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to + develop this 3D driver. + + 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 COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS 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: + * Keith Whitwell <[email protected]> + */ + + +#include "brw_state.h" + +#include "brw_wm.h" +#include "brw_vs.h" +#include "brw_clip.h" +#include "brw_sf.h" +#include "brw_gs.h" + +#include "pipe/p_util.h" + + + +/*********************************************************************** + * Check cache for uploaded version of struct, else upload new one. + * Fail when memory is exhausted. + * + * XXX: FIXME: Currently search is so slow it would be quicker to + * regenerate the data every time... + */ + +static unsigned hash_key( const void *key, unsigned key_size ) +{ + unsigned *ikey = (unsigned *)key; + unsigned hash = 0, i; + + assert(key_size % 4 == 0); + + /* I'm sure this can be improved on: + */ + for (i = 0; i < key_size/4; i++) + hash ^= ikey[i]; + + return hash; +} + +static struct brw_cache_item *search_cache( struct brw_cache *cache, + unsigned hash, + const void *key, + unsigned key_size) +{ + struct brw_cache_item *c; + + for (c = cache->items[hash % cache->size]; c; c = c->next) { + if (c->hash == hash && + c->key_size == key_size && + memcmp(c->key, key, key_size) == 0) + return c; + } + + return NULL; +} + + +static void rehash( struct brw_cache *cache ) +{ + struct brw_cache_item **items; + struct brw_cache_item *c, *next; + unsigned size, i; + + size = cache->size * 3; + items = (struct brw_cache_item**) MALLOC(size * sizeof(*items)); + memset(items, 0, size * sizeof(*items)); + + for (i = 0; i < cache->size; i++) + for (c = cache->items[i]; c; c = next) { + next = c->next; + c->next = items[c->hash % size]; + items[c->hash % size] = c; + } + + FREE(cache->items); + cache->items = items; + cache->size = size; +} + + +boolean brw_search_cache( struct brw_cache *cache, + const void *key, + unsigned key_size, + void *aux_return, + unsigned *offset_return) +{ + struct brw_cache_item *item; + unsigned addr = 0; + unsigned hash = hash_key(key, key_size); + + item = search_cache(cache, hash, key, key_size); + + if (item) { + if (aux_return) + *(void **)aux_return = (void *)((char *)item->key + item->key_size); + + *offset_return = addr = item->offset; + } + + if (item == NULL || addr != cache->last_addr) { + cache->brw->state.dirty.cache |= 1<<cache->id; + cache->last_addr = addr; + } + + return item != NULL; +} + +unsigned brw_upload_cache( struct brw_cache *cache, + const void *key, + unsigned key_size, + const void *data, + unsigned data_size, + const void *aux, + void *aux_return ) +{ + unsigned offset; + struct brw_cache_item *item = CALLOC_STRUCT(brw_cache_item); + unsigned hash = hash_key(key, key_size); + void *tmp = MALLOC(key_size + cache->aux_size); + + if (!brw_pool_alloc(cache->pool, data_size, 1 << 6, &offset)) { + /* Should not be possible: + */ + debug_printf("brw_pool_alloc failed\n"); + exit(1); + } + + memcpy(tmp, key, key_size); + + if (cache->aux_size) + memcpy(tmp+key_size, aux, cache->aux_size); + + item->key = tmp; + item->hash = hash; + item->key_size = key_size; + item->offset = offset; + item->data_size = data_size; + + if (++cache->n_items > cache->size * 1.5) + rehash(cache); + + hash %= cache->size; + item->next = cache->items[hash]; + cache->items[hash] = item; + + if (aux_return) { + assert(cache->aux_size); + *(void **)aux_return = (void *)((char *)item->key + item->key_size); + } + + if (BRW_DEBUG & DEBUG_STATE) + debug_printf("upload %s: %d bytes to pool buffer %p offset %x\n", + cache->name, + data_size, + (void*)cache->pool->buffer, + offset); + + /* Copy data to the buffer: + */ + cache->brw->winsys->buffer_subdata_typed(cache->brw->winsys, + cache->pool->buffer, + offset, + data_size, + data, + cache->id); + + cache->brw->state.dirty.cache |= 1<<cache->id; + cache->last_addr = offset; + + return offset; +} + +/* This doesn't really work with aux data. Use search/upload instead + */ +unsigned brw_cache_data_sz(struct brw_cache *cache, + const void *data, + unsigned data_size) +{ + unsigned addr; + + if (!brw_search_cache(cache, data, data_size, NULL, &addr)) { + addr = brw_upload_cache(cache, + data, data_size, + data, data_size, + NULL, NULL); + } + + return addr; +} + +unsigned brw_cache_data(struct brw_cache *cache, + const void *data) +{ + return brw_cache_data_sz(cache, data, cache->key_size); +} + +enum pool_type { + DW_SURFACE_STATE, + DW_GENERAL_STATE +}; + +static void brw_init_cache( struct brw_context *brw, + const char *name, + unsigned id, + unsigned key_size, + unsigned aux_size, + enum pool_type pool_type) +{ + struct brw_cache *cache = &brw->cache[id]; + cache->brw = brw; + cache->id = id; + cache->name = name; + cache->items = NULL; + + cache->size = 7; + cache->n_items = 0; + cache->items = (struct brw_cache_item **) + CALLOC(cache->size, sizeof(struct brw_cache_item)); + + + cache->key_size = key_size; + cache->aux_size = aux_size; + switch (pool_type) { + case DW_GENERAL_STATE: cache->pool = &brw->pool[BRW_GS_POOL]; break; + case DW_SURFACE_STATE: cache->pool = &brw->pool[BRW_SS_POOL]; break; + default: assert(0); break; + } +} + +void brw_init_caches( struct brw_context *brw ) +{ + + brw_init_cache(brw, + "CC_VP", + BRW_CC_VP, + sizeof(struct brw_cc_viewport), + 0, + DW_GENERAL_STATE); + + brw_init_cache(brw, + "CC_UNIT", + BRW_CC_UNIT, + sizeof(struct brw_cc_unit_state), + 0, + DW_GENERAL_STATE); + + brw_init_cache(brw, + "WM_PROG", + BRW_WM_PROG, + sizeof(struct brw_wm_prog_key), + sizeof(struct brw_wm_prog_data), + DW_GENERAL_STATE); + + brw_init_cache(brw, + "SAMPLER_DEFAULT_COLOR", + BRW_SAMPLER_DEFAULT_COLOR, + sizeof(struct brw_sampler_default_color), + 0, + DW_GENERAL_STATE); + + brw_init_cache(brw, + "SAMPLER", + BRW_SAMPLER, + 0, /* variable key/data size */ + 0, + DW_GENERAL_STATE); + + brw_init_cache(brw, + "WM_UNIT", + BRW_WM_UNIT, + sizeof(struct brw_wm_unit_state), + 0, + DW_GENERAL_STATE); + + brw_init_cache(brw, + "SF_PROG", + BRW_SF_PROG, + sizeof(struct brw_sf_prog_key), + sizeof(struct brw_sf_prog_data), + DW_GENERAL_STATE); + + brw_init_cache(brw, + "SF_VP", + BRW_SF_VP, + sizeof(struct brw_sf_viewport), + 0, + DW_GENERAL_STATE); + + brw_init_cache(brw, + "SF_UNIT", + BRW_SF_UNIT, + sizeof(struct brw_sf_unit_state), + 0, + DW_GENERAL_STATE); + + brw_init_cache(brw, + "VS_UNIT", + BRW_VS_UNIT, + sizeof(struct brw_vs_unit_state), + 0, + DW_GENERAL_STATE); + + brw_init_cache(brw, + "VS_PROG", + BRW_VS_PROG, + sizeof(struct brw_vs_prog_key), + sizeof(struct brw_vs_prog_data), + DW_GENERAL_STATE); + + brw_init_cache(brw, + "CLIP_UNIT", + BRW_CLIP_UNIT, + sizeof(struct brw_clip_unit_state), + 0, + DW_GENERAL_STATE); + + brw_init_cache(brw, + "CLIP_PROG", + BRW_CLIP_PROG, + sizeof(struct brw_clip_prog_key), + sizeof(struct brw_clip_prog_data), + DW_GENERAL_STATE); + + brw_init_cache(brw, + "GS_UNIT", + BRW_GS_UNIT, + sizeof(struct brw_gs_unit_state), + 0, + DW_GENERAL_STATE); + + brw_init_cache(brw, + "GS_PROG", + BRW_GS_PROG, + sizeof(struct brw_gs_prog_key), + sizeof(struct brw_gs_prog_data), + DW_GENERAL_STATE); + + brw_init_cache(brw, + "SS_SURFACE", + BRW_SS_SURFACE, + sizeof(struct brw_surface_state), + 0, + DW_SURFACE_STATE); + + brw_init_cache(brw, + "SS_SURF_BIND", + BRW_SS_SURF_BIND, + sizeof(struct brw_surface_binding_table), + 0, + DW_SURFACE_STATE); +} + + +/* When we lose hardware context, need to invalidate the surface cache + * as these structs must be explicitly re-uploaded. They are subject + * to fixup by the memory manager as they contain absolute agp + * offsets, so we need to ensure there is a fresh version of the + * struct available to receive the fixup. + * + * XXX: Need to ensure that there aren't two versions of a surface or + * bufferobj with different backing data active in the same buffer at + * once? Otherwise the cache could confuse them. Maybe better not to + * cache at all? + * + * --> Isn't this the same as saying need to ensure batch is flushed + * before new data is uploaded to an existing buffer? We + * already try to make sure of that. + */ +static void clear_cache( struct brw_cache *cache ) +{ + struct brw_cache_item *c, *next; + unsigned i; + + for (i = 0; i < cache->size; i++) { + for (c = cache->items[i]; c; c = next) { + next = c->next; + free((void *)c->key); + free(c); + } + cache->items[i] = NULL; + } + + cache->n_items = 0; +} + +void brw_clear_all_caches( struct brw_context *brw ) +{ + int i; + + if (BRW_DEBUG & DEBUG_STATE) + debug_printf("%s\n", __FUNCTION__); + + for (i = 0; i < BRW_MAX_CACHE; i++) + clear_cache(&brw->cache[i]); + + if (brw->curbe.last_buf) { + FREE(brw->curbe.last_buf); + brw->curbe.last_buf = NULL; + } + + brw->state.dirty.brw |= ~0; + brw->state.dirty.cache |= ~0; +} + + + + + +void brw_destroy_caches( struct brw_context *brw ) +{ + unsigned i; + + for (i = 0; i < BRW_MAX_CACHE; i++) + clear_cache(&brw->cache[i]); +} |