[RFC PATCH 3/4] arm64: add support for memtest

[Catalin Marinas]

On Tue, Mar 03, 2015 at 09:26:58AM +0000, Vladimir Murzin wrote:
> On 02/03/15 18:56, Will Deacon wrote:
> > On Mon, Mar 02, 2015 at 02:55:44PM +0000, Vladimir Murzin wrote:
> >> Add support for memtest command line option.
> >>
> >> Signed-off-by: Vladimir Murzin <vladimir.murzin at arm.com>
> >> ---
> >>  arch/arm64/mm/init.c |    2 ++
> >>  1 file changed, 2 insertions(+)
> >>
> >> diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
> >> index ae85da6..597831b 100644
> >> --- a/arch/arm64/mm/init.c
> >> +++ b/arch/arm64/mm/init.c
> >> @@ -190,6 +190,8 @@ void __init bootmem_init(void)
> >>  	min = PFN_UP(memblock_start_of_DRAM());
> >>  	max = PFN_DOWN(memblock_end_of_DRAM());
> >>  
> >> +	early_memtest(min << PAGE_SHIFT, max << PAGE_SHIFT);
> >> +
> >>  	/*
> >>  	 * Sparsemem tries to allocate bootmem in memory_present(), so must be
> >>  	 * done after the fixed reservations.
> > 
> > This is really neat, thanks for doing this Vladimir!
> > 
> >   Acked-by: Will Deacon <will.deacon at arm.com>
> > 
> > For the series, modulo Baruch's comments about Documentation updates.
> 
> Thanks Will! I'll wait for awhile for other comments and repost updated
> version.
> 
> I wonder which tree it might go?

Since it touches mm, x86, arm, arm64, I guess it could go in via the mm
tree (akpm). We could take it via the arm64 tree as well if we have all
the acks in place.

-- 
Catalin