On Mon, Mar 19, 2018 at 08:47:45PM -0600, Sinan Kaya wrote: > Code includes wmb() followed by writel(). writel() already has a barrier on > some architectures like arm64. > > This ends up CPU observing two barriers back to back before executing the > register write. > > Create a new wrapper function with relaxed write operator. Use the new > wrapper when a write is following a wmb(). > > Since code already has an explicit barrier call, changing writel() to > writel_relaxed(). > > Signed-off-by: Sinan Kaya <ok...@codeaurora.org>
Acked-by: Shiraz Saleem <shiraz.sal...@intel.com>
