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i965: Only write program to cache when it doesn't exist yet 

Current logic re-writes the same data when existing data is found.
Not that this actually matters at the moment in practice, the
contraint for finding matching data is too severe to ever allow
data to be shared between two items in the cache.

Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
This commit is contained in:
Topi Pohjolainen 2015-06-25 14:35:26 +03:00
parent b4897eb70a
commit 12a66d91f6
1 changed files with 7 additions and 7 deletions
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14
src/mesa/drivers/dri/i965/brw_state_cache.c
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@ -314,6 +314,13 @@ brw_upload_cache(struct brw_cache *cache,
*/
if (!brw_try_upload_using_copy(cache, item, data, aux)) {
item->offset = brw_alloc_item_data(cache, data_size);
/* Copy data to the buffer */
if (brw->has_llc) {
memcpy((char *)cache->bo->virtual + item->offset, data, data_size);
} else {
drm_intel_bo_subdata(cache->bo, item->offset, data_size, data);
}
}
/* Set up the memory containing the key and aux_data */
@ -332,13 +339,6 @@ brw_upload_cache(struct brw_cache *cache,
cache->items[hash] = item;
cache->n_items++;
/* Copy data to the buffer */
if (brw->has_llc) {
memcpy((char *) cache->bo->virtual + item->offset, data, data_size);
} else {
drm_intel_bo_subdata(cache->bo, item->offset, data_size, data);
}
*out_offset = item->offset;
*(void **)out_aux = (void *)((char *)item->key + item->key_size);
cache->brw->ctx.NewDriverState |= 1 << cache_id;