mirror of https://github.com/torvalds/linux.git
17154addc5
Add a way for userspace to specify the sequence number fence used to track completion of the submit. As the seqno fence is simply an incrementing counter which is local to the submitqueue, it is easy for userspace to know the next value. This is useful for native userspace drivers in a vm guest, as the guest to host roundtrip can have high latency. Assigning the fence seqno in the guest userspace allows the guest to continue without waiting for response from the host. Signed-off-by: Rob Clark <robdclark@chromium.org> Link: https://lore.kernel.org/r/20220224222321.60653-1-robdclark@gmail.com |
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| Kbuild | ||