[PATCH] ARM: LPAE: initialize cachepolicy correctly

Russell King - ARM Linux linux at armlinux.org.uk
Sun Sep 4 15:09:03 PDT 2016

On Sat, Sep 03, 2016 at 10:33:31PM -0700, Stefan Agner wrote:
> The cachepolicy variable gets initialized using a masked pmd
> So far, the pmd has been masked with flags valid for the 2-page
> table format. In the LPAE case, this lead to a wrong assumption
> of what the initial cachepolicy has been used. Later a check
> forces the cache policy to writealloc and prints the following
> warning:
> Forcing write-allocate cache policy for SMP
> This patch uses PMD_SECT_WBWA to mask all cache setting flags.
> The define represents the complete mask of the cache relevant
> flags for both page table formats.

PMD_SECT_WBWA is just one possible combination, it's not a bit-mask.
We need a new definition.

RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
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