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This is 3 orders of > magnitude more than Nouveau (which sleeps for 1 microsecond) or OpenRM > (which does not sleep at all and busy-polls) and is way too much, as GSP > commands are expected to be processed much faster than that. > > Reduce the sleep time to 1 microsecond. This effectively makes `fsleep` > busy-loop with a call to `cpu_relax` afterwards, keeping latency to a > minimum. > > Signed-off-by: Alexandre Courbot > --- > Changes in v2: > - Wait for 1 microsecond. (Eliot) > - Link to v1: https://patch.msgid.link/20261030-cmdq_wait_msg_timeout-v1-= 1-a1e628d2732c@nvidia.com > --- Reviewed-by: Eliot Courtney