diff options
| author | Dave Airlie <[email protected]> | 2017-06-06 08:43:38 +1000 |
|---|---|---|
| committer | Dave Airlie <[email protected]> | 2017-06-06 08:44:01 +1000 |
| commit | 114d29e7fe13355f01d1ef27d50723af84b03081 (patch) | |
| tree | 41e04728481676688cfbecba7b3275ac1e30d515 | |
| parent | da3330662f348de713cc9ae566d6f67187928c76 (diff) | |
radv: add a comment from radeonsi before cp dma function.
This is just copied over.
Signed-off-by: Dave Airlie <[email protected]>
| -rw-r--r-- | src/amd/vulkan/si_cmd_buffer.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/amd/vulkan/si_cmd_buffer.c b/src/amd/vulkan/si_cmd_buffer.c index 8237155bda8..fdcf24e631c 100644 --- a/src/amd/vulkan/si_cmd_buffer.c +++ b/src/amd/vulkan/si_cmd_buffer.c @@ -1001,6 +1001,10 @@ static inline unsigned cp_dma_max_byte_count(struct radv_cmd_buffer *cmd_buffer) return max & ~(SI_CPDMA_ALIGNMENT - 1); } +/* Emit a CP DMA packet to do a copy from one buffer to another, or to clear + * a buffer. The size must fit in bits [20:0]. If CP_DMA_CLEAR is set, src_va is a 32-bit + * clear value. + */ static void si_emit_cp_dma(struct radv_cmd_buffer *cmd_buffer, uint64_t dst_va, uint64_t src_va, unsigned size, unsigned flags) |