Some remote processors (in particular the modem) found in Qualcomm platforms stores configuration parameters and other data in a file system. As the remotes does not have direct storage access it needs to relay block accesses through a service running on the application CPU. The memory is described in DeviceTree by a new reserved-memory compatible and the implementation provides the user space service a read/write interface to this chunk of memory. Bjorn Andersson (5): of/platform: Generalize /reserved-memory handling of: reserved_mem: Accessor for acquiring reserved_mem dt-binding: soc: qcom: Add binding for rmtfs memory soc: qcom: Remote filesystem memory driver arm64: dts: msm8916: Mark rmtfs node as qcom,rmtfs-mem compatible .../bindings/reserved-memory/qcom,rmtfs-mem.txt | 51 ++++ arch/arm64/boot/dts/qcom/msm8916.dtsi | 3 + drivers/of/of_reserved_mem.c | 26 ++ drivers/of/platform.c | 19 +- drivers/soc/qcom/Kconfig | 11 + drivers/soc/qcom/Makefile | 1 + drivers/soc/qcom/rmtfs_mem.c | 271 +++++++++++++++++++++ include/linux/of_reserved_mem.h | 5 + 8 files changed, 379 insertions(+), 8 deletions(-) create mode 100644 Documentation/devicetree/bindings/reserved-memory/qcom,rmtfs-mem.txt create mode 100644 drivers/soc/qcom/rmtfs_mem.c -- 2.12.0 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
