From mboxrd@z Thu Jan 1 00:00:00 1970 From: Will Deacon Subject: Re: [PATCH 5/7] iommu/arm-smmu: don't bother truncating the s1 output size to VA_BITS Date: Tue, 2 Dec 2014 09:26:38 +0000 Message-ID: <20141202092638.GA9917@arm.com> References: <1409849405-17347-1-git-send-email-will.deacon@arm.com> <1409849405-17347-6-git-send-email-will.deacon@arm.com> <87mw77cdft.fsf@igel.home> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <87mw77cdft.fsf-hBGjKatGTSWzQB+pC5nmwQ@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: Andreas Schwab Cc: "iommu-cunTk1MwBs98uUxBSJOaYoYkZiVZrdSR2LY78lusg7I@public.gmane.org" , "tchalamarla-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org" , Robin Murphy , "linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org" List-Id: iommu@lists.linux-foundation.org On Mon, Dec 01, 2014 at 08:39:18PM +0000, Andreas Schwab wrote: > Will Deacon writes: > > > diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c > > index ecad700cd4f4..2a7e3331b93a 100644 > > --- a/drivers/iommu/arm-smmu.c > > +++ b/drivers/iommu/arm-smmu.c > > @@ -24,7 +24,7 @@ > > * - v7/v8 long-descriptor format > > * - Non-secure access to the SMMU > > * - 4k and 64k pages, with contiguous pte hints. > > - * - Up to 42-bit addressing (dependent on VA_BITS) > > + * - Up to 48-bit addressing (dependent on VA_BITS) > > Does that mean that the dependency on !ARM_SMMU for ARM64_VA_BITS_48 is > obsolete? No, you need my other patch series for that (we don't handle stage-2 properly without it): http://lists.infradead.org/pipermail/linux-arm-kernel/2014-November/306786.html Will