From mboxrd@z Thu Jan 1 00:00:00 1970 From: jean-philippe.brucker@arm.com (Jean-Philippe Brucker) Date: Fri, 6 Oct 2017 14:31:59 +0100 Subject: [RFCv2 PATCH 32/36] iommu/arm-smmu-v3: Hook ATC invalidation to process ops In-Reply-To: <20171006133203.22803-1-jean-philippe.brucker@arm.com> References: <20171006133203.22803-1-jean-philippe.brucker@arm.com> Message-ID: <20171006133203.22803-33-jean-philippe.brucker@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org The core calls us when a process is modified. Perform the required ATC invalidations. Signed-off-by: Jean-Philippe Brucker --- drivers/iommu/arm-smmu-v3.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c index d03bec4d4b82..f591f1974228 100644 --- a/drivers/iommu/arm-smmu-v3.c +++ b/drivers/iommu/arm-smmu-v3.c @@ -2839,7 +2839,7 @@ static void arm_smmu_process_detach(struct iommu_domain *domain, arm_smmu_write_ctx_desc(smmu_domain, process->pasid, NULL); } - /* TODO: Invalidate ATC. */ + arm_smmu_atc_inv_master_all(master, process->pasid); /* TODO: Invalidate all mappings if last and not DVM. */ } @@ -2847,8 +2847,9 @@ static void arm_smmu_process_invalidate(struct iommu_domain *domain, struct iommu_process *process, unsigned long iova, size_t size) { + arm_smmu_atc_inv_domain(to_smmu_domain(domain), process->pasid, + iova, size); /* - * TODO: Invalidate ATC. * TODO: Invalidate mapping if not DVM */ } @@ -2871,7 +2872,7 @@ static void arm_smmu_process_exit(struct iommu_domain *domain, domain->process_exit(domain, master->dev, process->pasid, domain->process_exit_token); - /* TODO: inval ATC */ + arm_smmu_atc_inv_master_all(master, process->pasid); } spin_unlock(&smmu_domain->devices_lock); -- 2.13.3