On Tue, 2018-04-10 at 11:49:31 UTC, Nicholas Piggin wrote: > This is the start of an effort to tidy up and standardise all the > delays. Existing loops have a range of delay/sleep periods from 1ms > to 20ms, and some have no delay. They all loop forever except rtc, > which times out after 10 retries, and that uses 10ms delays. So use > 10ms as our standard delay. The OPAL maintainer agrees 10ms is a > reasonable starting point. > > The idea is to use the same recipe everywhere, once this is proven to > work then it will be documented as an OPAL API standard. Then both > firmware and OS can agree, and if a particular call needs something > else, then that can be documented with reasoning. > > This is not the end-all of this effort, it's just a relatively easy > change that fixes some existing high latency delays. There should be > provision for standardising timeouts and/or interruptible loops where > possible, so non-fatal firmware errors don't cause hangs. > > Signed-off-by: Nicholas Piggin <npig...@gmail.com>
Applied to powerpc fixes, thanks. https://git.kernel.org/powerpc/c/34dd25de9fe3f60bfdb31b473bf04b cheers
