From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joerg Roedel Subject: Re: [PATCH 1/2] iommu/exynos: Block SYSMMU while invalidating FLPD cache Date: Wed, 22 Mar 2017 15:51:28 +0100 Message-ID: <20170322145128.GB7315@8bytes.org> References: <1490001484-18890-1-git-send-email-m.szyprowski@samsung.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <1490001484-18890-1-git-send-email-m.szyprowski-Sze3O3UU22JBDgjK7y7TUQ@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: Marek Szyprowski Cc: linux-samsung-soc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Bartlomiej Zolnierkiewicz , stable-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Andrzej Hajda , iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, Krzysztof Kozlowski List-Id: iommu@lists.linux-foundation.org On Mon, Mar 20, 2017 at 10:17:56AM +0100, Marek Szyprowski wrote: > Documentation specifies that SYSMMU should be in blocked state while > performing TLB/FLPD cache invalidation, so add needed calls to > sysmmu_block/unblock. > > Fixes: 66a7ed84b345d ("iommu/exynos: Apply workaround of caching fault page table entries") > CC: stable-u79uwXL29TY76Z2rM5mHXA@public.gmane.org # v4.10+ > Signed-off-by: Marek Szyprowski > --- > This issue has been introduced long time ago, but this fix applies only for > v4.10+ kernels due to other changes in the surrounding code. > --- > drivers/iommu/exynos-iommu.c | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) Applied both patches to iommu/fixes, thanks.