diff options
| author | Jan Vesely <jan.vesely@rutgers.edu> | 2014-06-19 20:20:00 +0200 |
|---|---|---|
| committer | Tom Stellard <thomas.stellard@amd.com> | 2014-06-24 12:36:55 -0400 |
| commit | 9575225e12c66bf409ce2269400f9ad148ffe0a2 (patch) | |
| tree | 3fe00a6de301e622627f53e4f38bb47167ee9ecb /src/gallium/drivers/r600 | |
| parent | 0c181cdc6c0efdd98927b010239e0376399cecbf (diff) | |
r600g/compute: Fix possible endless loop in compute_memory_pool allocations.
The important part is the change of the condition to <= 0. Otherwise the loop
gets stuck never actually growing the pool.
The change in the aux-need calculation guarantees max 2 iterations, and
avoids wasting memory in case a smaller item can't fit into a relatively larger
pool.
Reviewed-by: Bruno Jiménez <brunojimen@gmail.com>
Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>
Diffstat (limited to 'src/gallium/drivers/r600')
| -rw-r--r-- | src/gallium/drivers/r600/compute_memory_pool.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/gallium/drivers/r600/compute_memory_pool.c b/src/gallium/drivers/r600/compute_memory_pool.c index 691c9383f15..9cb16f8c29e 100644 --- a/src/gallium/drivers/r600/compute_memory_pool.c +++ b/src/gallium/drivers/r600/compute_memory_pool.c @@ -323,8 +323,11 @@ int compute_memory_promote_item(struct compute_memory_pool *pool, int64_t need = item->size_in_dw + 2048 - (pool->size_in_dw - allocated); - if (need < 0) { - need = pool->size_in_dw / 10; + if (need <= 0) { + /* There's enough free space, but it's too + * fragmented. Assume half of the item can fit + * int the last chunk */ + need = (item->size_in_dw / 2) + ITEM_ALIGNMENT; } need = align(need, ITEM_ALIGNMENT); |