linux-kernel - Re: [PATCH v2 linux-next] iommu: Enable LPAE pagetable on ARM only

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Date:	Tue, 24 Feb 2015 02:02:57 +0200
From:	Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:	Vincent Stehlé <vincent.stehle@...oste.net>
Cc:	iommu@...ts.linux-foundation.org, linux-next@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	Will Deacon <will.deacon@....com>
Subject: Re: [PATCH v2 linux-next] iommu: Enable LPAE pagetable on ARM only

Hi Vincent,

On Tuesday 24 February 2015 01:58:17 Laurent Pinchart wrote:
> On Tuesday 24 February 2015 00:55:21 Vincent Stehlé wrote:
> > LPAE iommu page table makes sense only for ARM architecture. Add the
> > corresponding dependency in Kconfig (and enable for COMPILE_TEST, too, as
> > per Laurent's suggestion).
> > 
> > Signed-off-by: Vincent Stehlé <vincent.stehle@...oste.net>
> > Suggested-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>
> > Cc: Will Deacon <will.deacon@....com>
> 
> Acked-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>

And I of course spoke too soon :-/

> > ---
> > 
> > Changes since v1:
> > - Add condition on COMPILE_TEST
> > 
> >  drivers/iommu/Kconfig | 1 +
> >  1 file changed, 1 insertion(+)
> > 
> > diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
> > index baa0d97..27cd88d 100644
> > --- a/drivers/iommu/Kconfig
> > +++ b/drivers/iommu/Kconfig
> > @@ -22,6 +22,7 @@ config IOMMU_IO_PGTABLE
> > 
> >  config IOMMU_IO_PGTABLE_LPAE
> >  	bool "ARMv7/v8 Long Descriptor Format"
> > +	depends on ARM || COMPILE_TEST

Shouldn't this be ARM || ARM64 || COMPILE_TEST ?

> >  	select IOMMU_IO_PGTABLE
> >  	help
> >  	  Enable support for the ARM long descriptor pagetable format.

-- 
Regards,

Laurent Pinchart

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