Re: [PATCH 1/1] arm64: fix flush_cache_range
From: Russell King - ARM Linux
Date: Wed May 25 2016 - 13:27:36 EST
On Wed, May 25, 2016 at 04:22:55PM +0100, Catalin Marinas wrote:
> That's when we realised that the CoW problem no longer exists for
> non-aliasing VIPT caches. However, the I-cache counterpart 6060e8df5178
> has not been reverted.
I think I mostly agree, except for reverting 6060e8df5178, which I don't
think would be correct. That reintroduces the possibility of flushing
the I-cache twice in that path, once for aliasing vipt dcaches, and again
for asid tagged vivt icaches. I'd rather have the code structured so we
only do this once.
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up
according to speedtest.net.