diff options
| author | Bas Nieuwenhuizen <[email protected]> | 2017-04-19 22:32:16 +0200 |
|---|---|---|
| committer | Bas Nieuwenhuizen <[email protected]> | 2017-04-19 23:47:27 +0200 |
| commit | 1e1165389c1940415306fae1e5bbe3e75b649975 (patch) | |
| tree | 5c4fee6a3312732c00a3259653cd8b84b2eb7617 /src/amd/vulkan/si_cmd_buffer.c | |
| parent | 74d92e547c0c5118e15df71b81a46a588e6a0a01 (diff) | |
radv: Add shader prefetch.
Gives me approximately a 2% perf increase in bot dota2 & talos.
Having descriptors (both sets and vertex buffers) prefetched
didn't help so I didn't include that.
Signed-off-by: Bas Nieuwenhuizen <[email protected]>
Reviewed-by: Dave Airlie <[email protected]>
Diffstat (limited to 'src/amd/vulkan/si_cmd_buffer.c')
| -rw-r--r-- | src/amd/vulkan/si_cmd_buffer.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/amd/vulkan/si_cmd_buffer.c b/src/amd/vulkan/si_cmd_buffer.c index 711dbde0aca..41625aa132d 100644 --- a/src/amd/vulkan/si_cmd_buffer.c +++ b/src/amd/vulkan/si_cmd_buffer.c @@ -1022,6 +1022,16 @@ static void si_emit_cp_dma_clear_buffer(struct radv_cmd_buffer *cmd_buffer, radv_cmd_buffer_trace_emit(cmd_buffer); } +void si_cp_dma_prefetch(struct radv_cmd_buffer *cmd_buffer, uint64_t va, + unsigned size) +{ + uint64_t aligned_va = va & ~(CP_DMA_ALIGNMENT - 1); + uint64_t aligned_size = ((va + size + CP_DMA_ALIGNMENT -1) & ~(CP_DMA_ALIGNMENT - 1)) - aligned_va; + + si_emit_cp_dma_copy_buffer(cmd_buffer, aligned_va, aligned_va, + aligned_size, CIK_CP_DMA_USE_L2); +} + static void si_cp_dma_prepare(struct radv_cmd_buffer *cmd_buffer, uint64_t byte_count, uint64_t remaining_size, unsigned *flags) { |