From mboxrd@z Thu Jan 1 00:00:00 1970 From: Will Deacon Subject: [GIT PULL] iommu/arm-smmu: Fixes for 4.13 Date: Mon, 24 Jul 2017 13:29:43 +0100 Message-ID: <20170724122943.GE29919@arm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline 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: joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org Cc: ray.jui-dY08KVG/lbpWk0Htik3J/w@public.gmane.org, iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org List-Id: iommu@lists.linux-foundation.org Hi Joerg, Please can you pull these arm-smmu/io-pgtable fixes for 4.13? The two main things are: 1. Ensure that we reject out-of-range map/unmap requests in the io-pgtable code (rather than operate on silently truncated addresses). 2. Serialise TLB sync operations on arm-smmu, otherwise we can limit forward progress and cause timeouts in the driver (as observed by Ray). This undoes a previous micro-optimisation that is no longer sensible with the pgtable locsk removed, but which is required for correctness on the MTK IOMMU, so the MTK driver is updated to keep things working there. Thanks, Will --->8 The following changes since commit 5771a8c08880cdca3bfb4a3fc6d309d6bba20877: Linux v4.13-rc1 (2017-07-15 15:22:10 -0700) are available in the git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/will/linux.git for-joerg/arm-smmu/fixes for you to fetch changes up to 76557391433c77d330cede1a531b358d2f90df66: iommu/io-pgtable: Sanitise map/unmap addresses (2017-07-20 10:30:28 +0100) ---------------------------------------------------------------- Robin Murphy (3): iommu/mtk: Avoid redundant TLB syncs locally Revert "iommu/io-pgtable: Avoid redundant TLB syncs" iommu/io-pgtable: Sanitise map/unmap addresses Vivek Gautam (1): iommu/arm-smmu: Fix the error path in arm_smmu_add_device Will Deacon (1): iommu/arm-smmu: Reintroduce locking around TLB sync operations drivers/iommu/arm-smmu.c | 18 +++++++++++++----- drivers/iommu/io-pgtable-arm-v7s.c | 6 ++++++ drivers/iommu/io-pgtable-arm.c | 7 +++++++ drivers/iommu/io-pgtable.h | 9 +-------- drivers/iommu/mtk_iommu.c | 6 ++++++ drivers/iommu/mtk_iommu.h | 1 + 6 files changed, 34 insertions(+), 13 deletions(-) From mboxrd@z Thu Jan 1 00:00:00 1970 From: will.deacon@arm.com (Will Deacon) Date: Mon, 24 Jul 2017 13:29:43 +0100 Subject: [GIT PULL] iommu/arm-smmu: Fixes for 4.13 Message-ID: <20170724122943.GE29919@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi Joerg, Please can you pull these arm-smmu/io-pgtable fixes for 4.13? The two main things are: 1. Ensure that we reject out-of-range map/unmap requests in the io-pgtable code (rather than operate on silently truncated addresses). 2. Serialise TLB sync operations on arm-smmu, otherwise we can limit forward progress and cause timeouts in the driver (as observed by Ray). This undoes a previous micro-optimisation that is no longer sensible with the pgtable locsk removed, but which is required for correctness on the MTK IOMMU, so the MTK driver is updated to keep things working there. Thanks, Will --->8 The following changes since commit 5771a8c08880cdca3bfb4a3fc6d309d6bba20877: Linux v4.13-rc1 (2017-07-15 15:22:10 -0700) are available in the git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/will/linux.git for-joerg/arm-smmu/fixes for you to fetch changes up to 76557391433c77d330cede1a531b358d2f90df66: iommu/io-pgtable: Sanitise map/unmap addresses (2017-07-20 10:30:28 +0100) ---------------------------------------------------------------- Robin Murphy (3): iommu/mtk: Avoid redundant TLB syncs locally Revert "iommu/io-pgtable: Avoid redundant TLB syncs" iommu/io-pgtable: Sanitise map/unmap addresses Vivek Gautam (1): iommu/arm-smmu: Fix the error path in arm_smmu_add_device Will Deacon (1): iommu/arm-smmu: Reintroduce locking around TLB sync operations drivers/iommu/arm-smmu.c | 18 +++++++++++++----- drivers/iommu/io-pgtable-arm-v7s.c | 6 ++++++ drivers/iommu/io-pgtable-arm.c | 7 +++++++ drivers/iommu/io-pgtable.h | 9 +-------- drivers/iommu/mtk_iommu.c | 6 ++++++ drivers/iommu/mtk_iommu.h | 1 + 6 files changed, 34 insertions(+), 13 deletions(-)