On 9/20/2024 9:48 PM, Dmitry Baryshkov wrote:
On Fri, Sep 20, 2024 at 09:28:13PM GMT, Bibek Kumar Patro wrote:Add ACTLR data table for qcom_smmu_500 including corresponding data entry and set prefetch value by way of a list of compatible strings. Signed-off-by: Bibek Kumar Patro <quic_bibekkum@xxxxxxxxxxx> --- drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 24 ++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c index 4ac272d05843..e8f936a446df 100644 --- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c +++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c @@ -25,8 +25,31 @@ #define CPRE (1 << 1) #define CMTLB (1 << 0) +#define PREFETCH_SHIFT 8 +#define PREFETCH_DEFAULT 0 +#define PREFETCH_SHALLOW (1 << PREFETCH_SHIFT) +#define PREFETCH_MODERATE (2 << PREFETCH_SHIFT) +#define PREFETCH_DEEP (3 << PREFETCH_SHIFT) #define GFX_ACTLR_PRR (1 << 5) +static const struct of_device_id qcom_smmu_actlr_client_of_match[] = { + { .compatible = "qcom,adreno", + .data = (const void *) (PREFETCH_DEEP | CPRE | CMTLB) }, + { .compatible = "qcom,adreno-gmu", + .data = (const void *) (PREFETCH_DEEP | CPRE | CMTLB) }, + { .compatible = "qcom,adreno-smmu", + .data = (const void *) (PREFETCH_DEEP | CPRE | CMTLB) }, + { .compatible = "qcom,fastrpc", + .data = (const void *) (PREFETCH_DEEP | CPRE | CMTLB) }, + { .compatible = "qcom,sc7280-mdss", + .data = (const void *) (PREFETCH_SHALLOW | CPRE | CMTLB) }, + { .compatible = "qcom,sc7280-venus", + .data = (const void *) (PREFETCH_SHALLOW | CPRE | CMTLB) }, + { .compatible = "qcom,sm8550-mdss", + .data = (const void *) (PREFETCH_DEFAULT | CMTLB) }, + { } +};Wow, this looks really nice now!
I am also in favor of this compatible based approach now, as it looks to be much cleaner implementation.
+ static struct qcom_smmu *to_qcom_smmu(struct arm_smmu_device *smmu) { return container_of(smmu, struct qcom_smmu, smmu); @@ -640,6 +663,7 @@ static const struct qcom_smmu_match_data qcom_smmu_500_impl0_data = { .impl = &qcom_smmu_500_impl, .adreno_impl = &qcom_adreno_smmu_500_impl, .cfg = &qcom_smmu_impl0_cfg, + .client_match = qcom_smmu_actlr_client_of_match, }; /* -- 2.34.1
