Set the pgtable quirk IO_PGTABLE_QUIRK_TLB_INV_ALL for QTI SoC
implementation to use ::tlb_flush_all() for partial walk flush
to improve unmap performance.
Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@xxxxxxxxxxxxxx>
---
drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
index 7771d40176de..b8ae51592d00 100644
--- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
+++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
@@ -146,6 +146,8 @@ static int qcom_adreno_smmu_init_context(struct arm_smmu_domain *smmu_domain,
{
struct adreno_smmu_priv *priv;
+ pgtbl_cfg->quirks |= IO_PGTABLE_QUIRK_TLB_INV_ALL;
+
/* Only enable split pagetables for the GPU device (SID 0) */
if (!qcom_adreno_smmu_is_gpu_device(dev))
return 0;
@@ -185,6 +187,14 @@ static const struct of_device_id qcom_smmu_client_of_match[] __maybe_unused = {
{ }
};
+static int qcom_smmu_init_context(struct arm_smmu_domain *smmu_domain,
+ struct io_pgtable_cfg *pgtbl_cfg, struct device *dev)
+{
+ pgtbl_cfg->quirks |= IO_PGTABLE_QUIRK_TLB_INV_ALL;
+
+ return 0;
+}
+
static int qcom_smmu_cfg_probe(struct arm_smmu_device *smmu)
{
unsigned int last_s2cr = ARM_SMMU_GR0_S2CR(smmu->num_mapping_groups - 1);
@@ -308,6 +318,7 @@ static int qcom_smmu500_reset(struct arm_smmu_device *smmu)
}
static const struct arm_smmu_impl qcom_smmu_impl = {
+ .init_context = qcom_smmu_init_context,
.cfg_probe = qcom_smmu_cfg_probe,
.def_domain_type = qcom_smmu_def_domain_type,
.reset = qcom_smmu500_reset,
--
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of Code Aurora Forum, hosted by The Linux Foundation
