[RFCv2 PATCH 32/36] iommu/arm-smmu-v3: Hook ATC invalidation to process ops
From: Jean-Philippe Brucker <hidden>
Date: 2017-10-06 13:31:59
Also in:
linux-acpi, linux-devicetree, linux-iommu, linux-pci
Subsystem:
iommu subsystem, the rest · Maintainers:
Joerg Roedel, Will Deacon, Linus Torvalds
The core calls us when a process is modified. Perform the required ATC invalidations. Signed-off-by: Jean-Philippe Brucker <redacted> --- 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