# SPDX-License-Identifier: GPL-2.0-onlymenuconfig MAILBOX	bool "Mailbox Hardware Support"	help	  Mailbox is a framework to control hardware communication between	  on-chip processors through queued messages and interrupt driven	  signals. Say Y if your platform supports hardware mailboxes. if MAILBOX config ARM_MHU	tristate "ARM MHU Mailbox"	depends on ARM_AMBA	help	  Say Y here if you want to build the ARM MHU controller driver.	  The controller has 3 mailbox channels, the last of which can be	  used in Secure mode only. config ARM_MHU_V2	tristate "ARM MHUv2 Mailbox"	depends on ARM_AMBA	help	  Say Y here if you want to build the ARM MHUv2 controller driver,	  which provides unidirectional mailboxes between processing elements. config ARM_MHU_V3	tristate "ARM MHUv3 Mailbox"	depends on ARM64 || COMPILE_TEST	depends on HAS_IOMEM || COMPILE_TEST	depends on OF	help	  Say Y here if you want to build the ARM MHUv3 controller driver,	  which provides unidirectional mailboxes between processing elements. 	  ARM MHUv3 controllers can implement a varying number of extensions	  that provides different means of transports: supported extensions	  will be discovered and possibly managed at probe-time. config AST2700_MBOX	tristate "ASPEED AST2700 IPC driver"	depends on ARCH_ASPEED || COMPILE_TEST	help	  Mailbox driver implementation for ASPEED AST27XX SoCs. This driver	  can be used to send message between different processors in SoC.	  The driver provides mailbox support for sending interrupts to the	  clients. Say Y here if you want to build this driver. config CV1800_MBOX	tristate "cv1800 mailbox"	depends on ARCH_SOPHGO || COMPILE_TEST	help	  Mailbox driver implementation for Sophgo CV18XX SoCs. This driver	  can be used to send message between different processors in SoC. Any	  processer can write data in a channel, and set co-responding register	  to raise interrupt to notice another processor, and it is allowed to	  send data to itself. config EXYNOS_MBOX	tristate "Exynos Mailbox"	depends on ARCH_EXYNOS || COMPILE_TEST	help	  Say Y here if you want to build the Samsung Exynos Mailbox controller	  driver. The controller has 16 flag bits for hardware interrupt	  generation and a shared register for passing mailbox messages.	  When the controller is used by the ACPM interface the shared register	  is ignored and the mailbox controller acts as a doorbell that raises	  the interrupt to the ACPM firmware. config IMX_MBOX	tristate "i.MX Mailbox"	depends on ARCH_MXC || COMPILE_TEST	help	  Mailbox implementation for i.MX Messaging Unit (MU). config PLATFORM_MHU	tristate "Platform MHU Mailbox"	depends on OF	depends on HAS_IOMEM	help	  Say Y here if you want to build a platform specific variant MHU	  controller driver.	  The controller has a maximum of 3 mailbox channels, the last of	  which can be used in Secure mode only. config PL320_MBOX	bool "ARM PL320 Mailbox"	depends on ARM_AMBA	help	  An implementation of the ARM PL320 Interprocessor Communication	  Mailbox (IPCM), tailored for the Calxeda Highbank. It is used to	  send short messages between Highbank's A9 cores and the EnergyCore	  Management Engine, primarily for cpufreq. Say Y here if you want	  to use the PL320 IPCM support. config ARMADA_37XX_RWTM_MBOX	tristate "Armada 37xx rWTM BIU Mailbox"	depends on ARCH_MVEBU || COMPILE_TEST	depends on OF	help	  Mailbox implementation for communication with the the firmware	  running on the Cortex-M3 rWTM secure processor of the Armada 37xx	  SOC. Say Y here if you are building for such a device (for example	  the Turris Mox router). config OMAP2PLUS_MBOX	tristate "OMAP2+ Mailbox framework support"	depends on ARCH_OMAP2PLUS || ARCH_K3 || COMPILE_TEST	help	  Mailbox implementation for OMAP family chips with hardware for	  interprocessor communication involving DSP, IVA1.0 and IVA2 in	  OMAP2/3; or IPU, IVA HD and DSP in OMAP4/5. Say Y here if you	  want to use OMAP2+ Mailbox framework support. config ROCKCHIP_MBOX	bool "Rockchip Soc Integrated Mailbox Support"	depends on ARCH_ROCKCHIP || COMPILE_TEST	help	  This driver provides support for inter-processor communication	  between CPU cores and MCU processor on Some Rockchip SOCs.	  Please check it that the Soc you use have Mailbox hardware.	  Say Y here if you want to use the Rockchip Mailbox support. config PCC	bool "Platform Communication Channel Driver"	depends on ACPI	default n	help	  ACPI 5.0+ spec defines a generic mode of communication	  between the OS and a platform such as the BMC. This medium	  (PCC) is typically used by CPPC (ACPI CPU Performance management),	  RAS (ACPI reliability protocol) and MPST (ACPI Memory power	  states). Select this driver if your platform implements the	  PCC clients mentioned above. config ALTERA_MBOX	tristate "Altera Mailbox"	depends on HAS_IOMEM	help	  An implementation of the Altera Mailbox soft core. It is used	  to send message between processors. Say Y here if you want to use the	  Altera mailbox support. config BCM2835_MBOX	tristate "BCM2835 Mailbox"	depends on ARCH_BCM2835	help	  An implementation of the BCM2385 Mailbox.  It is used to invoke	  the services of the Videocore. Say Y here if you want to use the	  BCM2835 Mailbox. config STI_MBOX	tristate "STI Mailbox framework support"	depends on ARCH_STI && OF	help	  Mailbox implementation for STMicroelectonics family chips with	  hardware for interprocessor communication. config TI_MESSAGE_MANAGER	tristate "Texas Instruments Message Manager Driver"	depends on ARCH_KEYSTONE || ARCH_K3 || COMPILE_TEST	default ARCH_K3	help	  An implementation of Message Manager slave driver for Keystone	  and K3 architecture SoCs from Texas Instruments. Message Manager	  is a communication entity found on few of Texas Instrument's keystone	  and K3 architecture SoCs. These may be used for communication between	  multiple processors within the SoC. Select this driver if your	  platform has support for the hardware block. config HI3660_MBOX	tristate "Hi3660 Mailbox" if EXPERT	depends on (ARCH_HISI || COMPILE_TEST)	depends on OF	default ARCH_HISI	help	  An implementation of the hi3660 mailbox. It is used to send message	  between application processors and other processors/MCU/DSP. Select	  Y here if you want to use Hi3660 mailbox controller. config HI6220_MBOX	tristate "Hi6220 Mailbox" if EXPERT	depends on (ARCH_HISI || COMPILE_TEST)	depends on OF	default ARCH_HISI	help	  An implementation of the hi6220 mailbox. It is used to send message	  between application processors and MCU. Say Y here if you want to	  build Hi6220 mailbox controller driver. config MAILBOX_TEST	tristate "Mailbox Test Client"	depends on OF	depends on HAS_IOMEM	help	  Test client to help with testing new Controller driver	  implementations. config POLARFIRE_SOC_MAILBOX	tristate "PolarFire SoC (MPFS) Mailbox"	depends on HAS_IOMEM	depends on MFD_SYSCON	depends on ARCH_MICROCHIP || COMPILE_TEST	help	  This driver adds support for the PolarFire SoC (MPFS) mailbox controller. 	  To compile this driver as a module, choose M here. the	  module will be called mailbox-mpfs. 	  If unsure, say N. config MCHP_SBI_IPC_MBOX	tristate "Microchip Inter-processor Communication (IPC) SBI driver"	depends on RISCV_SBI	depends on ARCH_MICROCHIP || COMPILE_TEST	help	  Mailbox implementation for Microchip devices with an	  Inter-process communication (IPC) controller. 	  To compile this driver as a module, choose M here. the	  module will be called mailbox-mchp-ipc-sbi. 	  If unsure, say N. config QCOM_APCS_IPC	tristate "Qualcomm APCS IPC driver"	depends on ARCH_QCOM || COMPILE_TEST	help	  Say y here to enable support for the APCS IPC mailbox driver,	  providing an interface for invoking the inter-process communication	  signals from the application processor to other masters. config TEGRA_HSP_MBOX	bool "Tegra HSP (Hardware Synchronization Primitives) Driver"	depends on ARCH_TEGRA	help	  The Tegra HSP driver is used for the interprocessor communication	  between different remote processors and host processors on Tegra186	  and later SoCs. Say Y here if you want to have this support.	  If unsure say N. config XGENE_SLIMPRO_MBOX	tristate "APM SoC X-Gene SLIMpro Mailbox Controller"	depends on ARCH_XGENE	help	  An implementation of the APM X-Gene Interprocessor Communication	  Mailbox (IPCM) between the ARM 64-bit cores and SLIMpro controller.	  It is used to send short messages between ARM64-bit cores and	  the SLIMpro Management Engine, primarily for PM. Say Y here if you	  want to use the APM X-Gene SLIMpro IPCM support. config BCM_PDC_MBOX	tristate "Broadcom FlexSparx DMA Mailbox"	depends on ARCH_BCM_IPROC || COMPILE_TEST	help	  Mailbox implementation for the Broadcom FlexSparx DMA ring manager,	  which provides access to various offload engines on Broadcom	  SoCs, including FA2/FA+ on Northstar Plus and PDC on Northstar 2. config BCM_FLEXRM_MBOX	tristate "Broadcom FlexRM Mailbox"	depends on ARM64	depends on ARCH_BCM_IPROC || COMPILE_TEST	select GENERIC_MSI_IRQ	default m if ARCH_BCM_IPROC	help	  Mailbox implementation of the Broadcom FlexRM ring manager,	  which provides access to various offload engines on Broadcom	  SoCs. Say Y here if you want to use the Broadcom FlexRM. config STM32_IPCC	tristate "STM32 IPCC Mailbox"	depends on MACH_STM32MP157 || COMPILE_TEST	help	  Mailbox implementation for STMicroelectonics STM32 family chips	  with hardware for Inter-Processor Communication Controller (IPCC)	  between processors. Say Y here if you want to have this support. config MTK_ADSP_MBOX	tristate "MediaTek ADSP Mailbox Controller"	depends on ARCH_MEDIATEK || COMPILE_TEST	help          Say yes here to add support for MediaTek ADSP Mailbox Controller.          This mailbox driver is used to send notification or short message          between processors with ADSP. It will place the message to share	  buffer and will access the ipc control. config MTK_CMDQ_MBOX	tristate "MediaTek CMDQ Mailbox Support"	depends on ARCH_MEDIATEK || COMPILE_TEST	select MTK_INFRACFG	help	  Say yes here to add support for the MediaTek Command Queue (CMDQ)	  mailbox driver. The CMDQ is used to help read/write registers with	  critical time limitation, such as updating display configuration	  during the vblank. config MTK_GPUEB_MBOX	tristate "MediaTek GPUEB Mailbox Support"	depends on ARCH_MEDIATEK || COMPILE_TEST	help	  The MediaTek GPUEB mailbox is used to communicate with the embedded	  controller in charge of GPU frequency and power management on some	  MediaTek SoCs, such as the MT8196.	  Say Y or m here if you want to support the MT8196 SoC in your kernel	  build. config MTK_VCP_MBOX	tristate "MediaTek VCP Mailbox Support"	depends on ARCH_MEDIATEK || COMPILE_TEST	help	  Say yes here to add support for the MediaTek VCP mailbox driver.	  The mailbox implementation provides access from the application	  processor to Video Companion Processor Unit.	  If unsure say N. config ZYNQMP_IPI_MBOX	tristate "Xilinx ZynqMP IPI Mailbox"	depends on ARCH_ZYNQMP && OF	help	  Say yes here to add support for Xilinx IPI mailbox driver.	  This mailbox driver is used to send notification or short message	  between processors with Xilinx ZynqMP IPI. It will place the	  message to the IPI buffer and will access the IPI control	  registers to kick the other processor or enquire status. config SUN6I_MSGBOX	tristate "Allwinner sun6i/sun8i/sun9i/sun50i Message Box"	depends on ARCH_SUNXI || COMPILE_TEST	default ARCH_SUNXI	help	  Mailbox implementation for the hardware message box present in	  various Allwinner SoCs. This mailbox is used for communication	  between the application CPUs and the power management coprocessor. config SPRD_MBOX	tristate "Spreadtrum Mailbox"	depends on ARCH_SPRD || COMPILE_TEST	help	  Mailbox driver implementation for the Spreadtrum platform. It is used	  to send message between application processors and MCU. Say Y here if	  you want to build the Spreatrum mailbox controller driver. config QCOM_CPUCP_MBOX	tristate "Qualcomm CPUCP mailbox driver"	depends on (ARCH_QCOM || COMPILE_TEST) && 64BIT	help	  Qualcomm Technologies, Inc. CPUSS Control Processor (CPUCP) mailbox	  controller driver enables communication between AP and CPUCP. Say	  Y here if you want to build this driver. config QCOM_IPCC	tristate "Qualcomm IPCC driver"	depends on ARCH_QCOM || COMPILE_TEST	help	  Qualcomm Technologies, Inc. Inter-Processor Communication Controller	  (IPCC) driver for MSM devices. The driver provides mailbox support for	  sending interrupts to the clients. On the other hand, the driver also	  acts as an interrupt controller for receiving interrupts from clients.	  Say Y here if you want to build this driver. config THEAD_TH1520_MBOX	tristate "T-head TH1520 Mailbox"	depends on ARCH_THEAD || COMPILE_TEST	help	  Mailbox driver implementation for the Thead TH-1520 platform. Enables	  two cores within the SoC to communicate and coordinate by passing	  messages. Could be used to communicate between E910 core, on which the	  kernel is running, and E902 core used for power management among other	  things. config CIX_MBOX        tristate "CIX Mailbox"        depends on ARCH_CIX || COMPILE_TEST        depends on OF        help          Mailbox implementation for CIX IPC system. The controller supports          11 mailbox channels with different operating mode and every channel          is unidirectional. Say Y here if you want to use the CIX Mailbox          support. config BCM74110_MAILBOX	tristate "Brcmstb BCM74110 Mailbox"	depends on ARCH_BRCMSTB || COMPILE_TEST	default ARCH_BRCMSTB	help	  Broadcom STB mailbox driver present starting with brcmstb bcm74110	  SoCs. The mailbox is a communication channel between the host	  processor and coprocessor that handles various power management task	  and more. config RISCV_SBI_MPXY_MBOX	tristate "RISC-V SBI Message Proxy (MPXY) Mailbox"	depends on RISCV_SBI	default RISCV	help	  Mailbox driver implementation for RISC-V SBI Message Proxy (MPXY)	  extension. This mailbox driver is used to send messages to the	  remote processor through the SBI implementation (M-mode firmware	  or HS-mode hypervisor). Say Y here, unless you are sure you do not	  need this. config AXIADO_MAILBOX	tristate "Axiado mailbox driver"	depends on ARCH_AXIADO || COMPILE_TEST	depends on OF	help	  Enable support for the Axiado mailbox controller. The driver provides	  communication channels between the host CPU and the coprocessor on	  Axiado SoCs.	  If unsure, say N. endif