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radeonsi: skip an unnecessary mutex lock for L2 prefetches

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the mutex lock is inside util_range_add.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
This commit is contained in:
Marek Olšák
2017-01-17 20:10:15 +01:00
parent d93b0eacb7
commit 4bde7d3d3c
1 changed files with 7 additions and 5 deletions
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12
src/gallium/drivers/radeonsi/si_cp_dma.c
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@@ -315,11 +315,13 @@ void si_copy_buffer(struct si_context *sctx,
if (!size)
return;
/* Mark the buffer range of destination as valid (initialized),
* so that transfer_map knows it should wait for the GPU when mapping
* that range. */
util_range_add(&r600_resource(dst)->valid_buffer_range, dst_offset,
dst_offset + size);
if (dst != src || dst_offset != src_offset) {
/* Mark the buffer range of destination as valid (initialized),
* so that transfer_map knows it should wait for the GPU when mapping
* that range. */
util_range_add(&r600_resource(dst)->valid_buffer_range, dst_offset,
dst_offset + size);
}
dst_offset += r600_resource(dst)->gpu_address;
src_offset += r600_resource(src)->gpu_address;