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authorJason Ekstrand <[email protected]>2016-11-05 19:47:33 -0700
committerJason Ekstrand <[email protected]>2016-11-09 11:31:12 -0800
commit8b61c57049ff75766715ad4f7b1ad2d3657b9b4d (patch)
treee05714e8c01219542ec2e169d8c80bef493094ee /doxygen
parent595400d57745fba198b42d95f3c4f5d855023c33 (diff)
anv: Move relocation handling from EndCommandBuffer to QueueSubmit
Ever since the early days of the Vulkan driver, we've been setting up the lists of relocations at EndCommandBuffer time. The idea behind this was to move some of the CPU load out of QueueSubmit which the client is required to lock around and into command buffer building which could be done in parallel. Then QueueSubmit basically just becomes a bunch of execbuf2 calls. Technically, this works. However, when you start to do more in QueueSubmit than just execbuf2, you start to run into problems. In particular, if a block pool is resized between EndCommandBuffer and QueueSubmit, the list of anv_bo's and the execbuf2 object list can get out of sync. This can cause problems if, for instance, you wanted to do relocations in userspace. Signed-off-by: Jason Ekstrand <[email protected]> Reviewed-by: Kristian H. Kristensen <[email protected]> Cc: "13.0" <[email protected]>
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