[Bug 108894] [anv] vkCmdCopyBuffer() and vkCmdCopyQueryPoolResults() write-after-write hazard

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Thu Nov 29 12:22:10 UTC 2018


--- Comment #3 from Lionel Landwerlin <lionel.g.landwerlin at linux.intel.com> ---
Got it.

Yes, I think you need to put barriers because in Anv we're using the 3d
pipeline to copy buffers, whereas timestamps are copied using the command
Those being 2 different pieces of hardware, there is no guarantee about which
one is going to write to memory first/last.

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