linux-kernel - RE: [PATCH v6 01/12] iommu/exynos: add missing cache flush for removed pagetable entries

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Date:	Thu, 04 Jul 2013 20:20:49 +0900
From:	Cho KyongHo <pullip.cho@...sung.com>
To:	'Grant Grundler' <grundler@...omium.org>,
	'Joerg Roedel' <joro@...tes.org>
Cc:	'LKML' <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH v6 01/12] iommu/exynos: add missing cache flush for removed
 pagetable entries

> From: grundler@...gle.com [mailto:grundler@...gle.com] On Behalf Of Grant Grundler
> Sent: Thursday, July 04, 2013 5:44 AM
> 
> Ping?
Hi.

Sorry for late update the patch set.
I am still working on the patch set when I am free.
Implementation of the updated patch set has been finished but not tested yet.

I will post the patches after simple test :)

Thank you.
> 
> On Mon, Jul 1, 2013 at 6:49 PM, Grant Grundler <grundler@...omium.org> wrote:
> > On Tuesday, December 25, 2012 6:00:01 PM UTC-8, Cho KyongHo wrote:
> >> This commit adds cache flush for removed small page and large page
> >> entries in exynos_iommu_unmap(). Missing cache flush of removed page
> >> table entries can cause missing page fault interrupt when a master IP
> >> accesses an unmapped area.
> >
> > KyongHo,
> > It appears this patch was never applied and got caught up in the
> > device tree binding discussion. AFAICT, this patch is still necessary.
> > Can you resubmit this patch separately. Or ok if I do?
> >
> > Original patch is here:
> >     https://patchwork.kernel.org/patch/1910261/
> >
> > thanks,
> > grant

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