[RFCv2,32/36] iommu/arm-smmu-v3: Hook ATC invalidation to process ops

Commit Message

Jean-Philippe Brucker Oct. 6, 2017, 1:31 p.m. UTC

The core calls us when a process is modified. Perform the required ATC
invalidations.

Signed-off-by: Jean-Philippe Brucker <[e-mail]>
---
 drivers/iommu/arm-smmu-v3.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

Patch

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);