This series implements system cache or LLCC(Last Level Cache Controller) driver for SDM845 SOC. The purpose of the driver is to partition the system cache and program the settings such as priortiy, lines to probe while doing a look up in the system cache, low power related settings etc. The partitions are called cache slices. Each cache slice is associated with size and SCID (System Cache ID) The driver also provides API for clients to query the cache slice details, activate and deactivate them. System cache has other blocks for memory error detection and AMON (Activity Monitor) for lock up detection. Since the hardware block has multiple functional units the driver is implemented to use syscon/regmap interface. The driver can be broadly classified into: - Core driver: llcc-core.c: This driver initializes the syscon, does common settings required to enable interrupts and error handling features. - SOC specific driver: llcc-sdm845.c: Cache partitioning and cache slice properties for usecases on sdm845 that need to use system cache. - API : llcc-slice.c: Exports APIs to clients to query cache slice details, activate and deactivate cache slices. Channagoud Kadabi (2): dt-bindings: Documentation for qcom,llcc drivers: soc: Add LLCC driver .../devicetree/bindings/arm/msm/qcom,llcc.txt | 93 +++++ drivers/soc/qcom/Kconfig | 16 + drivers/soc/qcom/Makefile | 2 + drivers/soc/qcom/llcc-core.c | 120 ++++++ drivers/soc/qcom/llcc-sdm845.c | 102 +++++ drivers/soc/qcom/llcc-slice.c | 456 +++++++++++++++++++++ include/linux/soc/qcom/llcc-qcom.h | 152 +++++++ 7 files changed, 941 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/msm/qcom,llcc.txt create mode 100644 drivers/soc/qcom/llcc-core.c create mode 100644 drivers/soc/qcom/llcc-sdm845.c create mode 100644 drivers/soc/qcom/llcc-slice.c create mode 100644 include/linux/soc/qcom/llcc-qcom.h -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
