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radv: Invalidate L2 for TRANSFER_WRITE barriers 

CP DMA and PKT3_WRITE_DATA (in CmdUpdateBuffer) don't (currently) write
through L2. Therefore, to make these writes visible to later accesses
we must invalidate L2 rather than just writing it back, to avoid the
possibility that stale data is read through L2.

Cc: "17.0" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Alex Smith <asmith@feralinteractive.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Smith 2017-03-21 17:02:33 +00:00 committed by Dave Airlie
parent bb32ea4fc6
commit bc5d587a80
1 changed files with 1 additions and 1 deletions
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2
src/amd/vulkan/radv_cmd_buffer.c
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@ -1477,7 +1477,7 @@ radv_src_access_flush(struct radv_cmd_buffer *cmd_buffer,
RADV_CMD_FLAG_FLUSH_AND_INV_CB_META |
RADV_CMD_FLAG_FLUSH_AND_INV_DB |
RADV_CMD_FLAG_FLUSH_AND_INV_DB_META |
RADV_CMD_FLAG_WRITEBACK_GLOBAL_L2;
RADV_CMD_FLAG_INV_GLOBAL_L2;
break;
default:
break;