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iris: Tidy BO sizing code and comments

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Buckets haven't been power of two sized in over a decade.

Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
This commit is contained in:
Kenneth Graunke 2019-05-26 16:21:55 -07:00
parent 7acc88a47c
commit 4c2d9729df
1 changed files with 5 additions and 12 deletions
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17
src/gallium/drivers/iris/iris_bufmgr.c
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@ -460,21 +460,14 @@ bo_alloc_internal(struct iris_bufmgr *bufmgr,
{
struct iris_bo *bo;
unsigned int page_size = getpagesize();
struct bo_cache_bucket *bucket;
uint64_t bo_size;
bool alloc_pages = false;
struct bo_cache_bucket *bucket = bucket_for_size(bufmgr, size);
/* Round the allocated size up to a power of two number of pages. */
bucket = bucket_for_size(bufmgr, size);
/* If we don't have caching at this size, don't actually round the
* allocation up.
/* Round the size up to the bucket size, or if we don't have caching
* at this size, a multiple of the page size.
*/
if (bucket == NULL) {
bo_size = MAX2(ALIGN(size, page_size), page_size);
} else {
bo_size = bucket->size;
}
uint64_t bo_size =
bucket ? bucket->size : MAX2(ALIGN(size, page_size), page_size);
mtx_lock(&bufmgr->lock);