[PATCH RFC v1 05/15] iommu/arm-smmu-v3: Set sync op from consumer driver of cd-lib
From: Vivek Gautam <hidden>
Date: 2021-01-15 12:15:49
Also in:
linux-iommu, lkml
Subsystem:
arm smmu drivers, iommu subsystem, the rest · Maintainers:
Will Deacon, Joerg Roedel, Linus Torvalds
Te change allows different consumers of arm-smmu-v3-cd-lib to set their respective sync op for pasid entries. Signed-off-by: Vivek Gautam <redacted> Cc: Joerg Roedel <joro@8bytes.org> Cc: Will Deacon <redacted> Cc: Robin Murphy <robin.murphy@arm.com> Cc: Jean-Philippe Brucker <redacted> Cc: Eric Auger <eric.auger@redhat.com> Cc: Alex Williamson <redacted> Cc: Kevin Tian <kevin.tian@intel.com> Cc: Jacob Pan <redacted> Cc: Liu Yi L <redacted> Cc: Lorenzo Pieralisi <redacted> Cc: Shameerali Kolothum Thodi <redacted> --- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-cd-lib.c | 1 - drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 7 +++++++ 2 files changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-cd-lib.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-cd-lib.c
index ec37476c8d09..acaa09acecdd 100644
--- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-cd-lib.c
+++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-cd-lib.c@@ -265,7 +265,6 @@ struct iommu_vendor_psdtable_ops arm_cd_table_ops = { .free = arm_smmu_free_cd_tables, .prepare = arm_smmu_prepare_cd, .write = arm_smmu_write_ctx_desc, - .sync = arm_smmu_sync_cd, }; struct iommu_pasid_table *arm_smmu_register_cd_table(struct device *dev,
diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
index 2f86c6ac42b6..0c644be22b4b 100644
--- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
+++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c@@ -1869,6 +1869,13 @@ static int arm_smmu_domain_finalise_s1(struct arm_smmu_domain *smmu_domain, if (ret) goto out_free_cd_tables; + /* + * Strange to setup an op here? + * cd-lib is the actual user of sync op, and therefore the platform + * drivers should assign this sync/maintenance ops as per need. + */ + tbl->ops->sync = arm_smmu_sync_cd; + /* * Note that this will end up calling arm_smmu_sync_cd() before * the master has been added to the devices list for this domain.
--
2.17.1
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel