[PATCH] arm64: fix early_io_map for 64K pages

Will Deacon will.deacon at arm.com
Wed Feb 5 09:52:51 EST 2014


Hi Rob,

On Wed, Feb 05, 2014 at 02:50:29PM +0000, Rob Herring wrote:
> From: Rob Herring <robh at kernel.org>
> 
> earlyprintk is broken with 64KB pages. The problem is pgprot_default
> is not yet initialized when early_io_map is called, so the pte does not
> get marked as valid. Set the necessary page and access permission bits.
> 
> Cc: Mark Salter <msalter at redhat.com>
> Cc: Catalin Marinas <catalin.marinas at arm.com>
> Cc: Will Deacon <will.deacon at arm.com>
> Signed-off-by: Rob Herring <robh at kernel.org>
> ---

I thought we fixed this in 4ce00dfcf19c by reverting the use of
pgprot_default?

Will



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