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, -- QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation