Re: [PATCH v2] arm64: allow ioremap_cache() to use existing RAMmappings

From: Catalin Marinas
Date: Tue Oct 29 2013 - 12:42:46 EST

On Thu, Oct 24, 2013 at 03:54:17PM +0100, Mark Salter wrote:
> Some drivers (ACPI notably) use ioremap_cache() to map an area which could
> either be outside of kernel RAM or in an already mapped reserved area of
> RAM. To avoid aliases with different caching attributes, ioremap() does
> not allow RAM to be remapped. But for ioremap_cache(), the existing kernel
> mapping may be used.
> Signed-off-by: Mark Salter <msalter@xxxxxxxxxx>

Looks good. Thanks.

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