The SBI v3.0 MPXY extension [1] and RPMI v1.0 [2] specifications are in stable state and under ARC review at the RISC-V International so as part of the RVI process we would like to receive an early feedback on the device tree bindings and mailbox drivers hence this series. Currently, most of the RPMI and MPXY drivers are in OpenSBI whereas for Linux only has SBI MPXY mailbox controller driver, RPMI clock driver.and RPMI system MSI driver This series also includes ACPI support for SBI MPXY mailbox controller and RPMI system MSI drivers. These patches can be found in the riscv_sbi_mpxy_mailbox_v2 branch at: https://github.com/avpatel/linux.git To test these patches, boot Linux on "virt,rpmi=on,aia=aplic-imsic" machine with OpenSBI and QEMU from the dev-upstream QEMU branch at: https://github.com/ventanamicro/opensbi.git https://github.com/ventanamicro/qemu.git [1] https://github.com/riscv-non-isa/riscv-sbi-doc/releases [2] https://github.com/riscv-non-isa/riscv-rpmi/releases Changes since v1: - Addressed DT bindings related comments in PATCH2, PATCH3, and PATCH7 of v1 series - Addressed comments in PATCH6 and PATCH8 of v1 series - New PATCH6 in v2 series to allow fwnode based mailbox channel request - New PATCH10 and PATCH11 to add RPMI system MSI based interrupt controller driver - New PATCH12 to PATCH16 which adds ACPI support in SBI MPXY mailbox driver and RPMI system MSI driver - New PATCH17 to enable required kconfig option to allow graceful shutdown on QEMU virt machine Anup Patel (11): riscv: Add new error codes defined by SBI v3.0 dt-bindings: mailbox: Add bindings for RPMI shared memory transport dt-bindings: mailbox: Add bindings for RISC-V SBI MPXY extension RISC-V: Add defines for the SBI message proxy extension mailbox: Add common header for RPMI messages sent via mailbox mailbox: Allow controller specific mapping using fwnode mailbox: Add RISC-V SBI message proxy (MPXY) based mailbox driver dt-bindings: clock: Add bindings for RISC-V RPMI clock service group dt-bindings: interrupt-controller: Add bindings for RISC-V RPMI system MSI irqchip: Add driver for the RISC-V RPMI system MSI service group RISC-V: Enable GPIO keyboard and event device in RV64 defconfig Rahul Pathak (1): clk: Add clock driver for the RISC-V RPMI clock service group Sunil V L (5): ACPI: property: Add support for nargs_prop in acpi_fwnode_get_reference_args() ACPI: scan: Update honor list for RPMI System MSI ACPI: RISC-V: Add RPMI System MSI to GSI mapping mailbox/riscv-sbi-mpxy: Add ACPI support irqchip/riscv-rpmi-sysmsi: Add ACPI support .../bindings/clock/riscv,rpmi-clock.yaml | 77 ++ .../riscv,rpmi-system-msi.yaml | 89 ++ .../mailbox/riscv,rpmi-shmem-mbox.yaml | 150 +++ .../bindings/mailbox/riscv,sbi-mpxy-mbox.yaml | 54 + arch/riscv/configs/defconfig | 2 + arch/riscv/include/asm/irq.h | 1 + arch/riscv/include/asm/sbi.h | 70 ++ drivers/acpi/property.c | 15 +- drivers/acpi/riscv/irq.c | 33 + drivers/acpi/scan.c | 2 + drivers/clk/Kconfig | 8 + drivers/clk/Makefile | 1 + drivers/clk/clk-rpmi.c | 601 ++++++++++ drivers/gpio/gpiolib-acpi.c | 2 +- drivers/irqchip/Kconfig | 7 + drivers/irqchip/Makefile | 1 + drivers/irqchip/irq-riscv-rpmi-sysmsi.c | 315 +++++ drivers/mailbox/Kconfig | 11 + drivers/mailbox/Makefile | 2 + drivers/mailbox/mailbox.c | 44 +- drivers/mailbox/riscv-sbi-mpxy-mbox.c | 1027 +++++++++++++++++ drivers/pwm/core.c | 2 +- include/linux/acpi.h | 12 +- include/linux/mailbox/riscv-rpmi-message.h | 235 ++++ include/linux/mailbox_controller.h | 3 + 25 files changed, 2737 insertions(+), 27 deletions(-) create mode 100644 Documentation/devicetree/bindings/clock/riscv,rpmi-clock.yaml create mode 100644 Documentation/devicetree/bindings/interrupt-controller/riscv,rpmi-system-msi.yaml create mode 100644 Documentation/devicetree/bindings/mailbox/riscv,rpmi-shmem-mbox.yaml create mode 100644 Documentation/devicetree/bindings/mailbox/riscv,sbi-mpxy-mbox.yaml create mode 100644 drivers/clk/clk-rpmi.c create mode 100644 drivers/irqchip/irq-riscv-rpmi-sysmsi.c create mode 100644 drivers/mailbox/riscv-sbi-mpxy-mbox.c create mode 100644 include/linux/mailbox/riscv-rpmi-message.h -- 2.43.0
