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# SPDX-License-Identifier: GPL-2.0-only
menuconfig 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 APPLE_MAILBOX
tristate "Apple Mailbox driver"
depends on ARCH_APPLE || (ARM64 && COMPILE_TEST)
default ARCH_APPLE
help
Apple SoCs have various co-processors required for certain
peripherals to work (NVMe, display controller, etc.). This
driver adds support for the mailbox controller used to
communicate with those.
Say Y here if you have a Apple SoC.
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 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
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 OMAP_MBOX_KFIFO_SIZE
int "Mailbox kfifo default buffer size (bytes)"
depends on OMAP2PLUS_MBOX
default 256
help
Specify the default size of mailbox's kfifo buffers (bytes).
This can also be changed at runtime (via the mbox_kfifo_size
module parameter).
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
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 ARCH_MICROCHIP_POLARFIRE || 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 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 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_IPCC
tristate "Qualcomm Technologies, Inc. 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.
endif
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