iommu: msm: Do not sleep for 10 ms when TLB sync does not complete
TLB sync might take longer than expected to complete and we wait for 10 ms
to recheck. This is causing jitter in some applications. Instead of waiting
too long to check whether TLB sync has completed we use function
readl_tight_poll_timeout to quickly poll the status without incurring sleep
delay.
We also ensure that if we do eventually time out on the TLB sync or iommu
halt we cause a crash to indicate that something has gone wrong.
CRs-fixed: 608971
Change-Id: I6b3e5155ab7aafa80432f95554d25cf0e2b753f9
Signed-off-by: Olav Haugan <ohaugan@codeaurora.org>
2 files changed