This patch series consists of three parts and covers the following: 1. Introducing intital set of driver changes to implement ACTLR register for custom prefetcher settings in Qualcomm SoCs. 2. Adding ACTLR data and implementation operations for SM8550. 3. Re-enabling context caching for Qualcomm SoCs to retain prefetcher settings during reset and runtime suspend. Changes in v2 from v1: - Incorporated suggestions on v1 from Dmitry,Konrad,Pratyush. - Added defines for ACTLR values. - Linked sm8550 implementation structure to corresponding compatible string. - Repackaged actlr value set implementation to separate function. - Fixed indentation errors. - Link to v1: https://lore.kernel.org/all/20231103215124.1095-1-quic_bibekkum@xxxxxxxxxxx/ Changes in v1 from RFC: - Incorporated suggestion form Robin on RFC. - Moved the actlr data table into driver, instead of maintaining it inside soc specific DT and piggybacking on exisiting iommus property (iommu = <SID, MASK, ACTLR>) to set this value during smmu probe. - Link to RFC: //lore.kernel.org/all/a01e7e60-6ead-4a9e-ba90-22a8a6bbd03f@xxxxxxxxxxx/ Bibek Kumar Patro (3): iommu/arm-smmu: introduction of ACTLR for custom prefetcher settings iommu/arm-smmu: add ACTLR data and support for SM8550 iommu/arm-smmu: re-enable context caching in smmu reset operation drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 156 ++++++++++++++++++++- drivers/iommu/arm/arm-smmu/arm-smmu-qcom.h | 2 + drivers/iommu/arm/arm-smmu/arm-smmu.c | 5 +- drivers/iommu/arm/arm-smmu/arm-smmu.h | 5 + 4 files changed, 159 insertions(+), 9 deletions(-) -- 2.17.1
