1menuconfig MAILBOX 2 bool "Mailbox Hardware Support" 3 help 4 Mailbox is a framework to control hardware communication between 5 on-chip processors through queued messages and interrupt driven 6 signals. Say Y if your platform supports hardware mailboxes. 7 8if MAILBOX 9 10config ARM_MHU 11 tristate "ARM MHU Mailbox" 12 depends on ARM_AMBA 13 help 14 Say Y here if you want to build the ARM MHU controller driver. 15 The controller has 3 mailbox channels, the last of which can be 16 used in Secure mode only. 17 18config PL320_MBOX 19 bool "ARM PL320 Mailbox" 20 depends on ARM_AMBA 21 help 22 An implementation of the ARM PL320 Interprocessor Communication 23 Mailbox (IPCM), tailored for the Calxeda Highbank. It is used to 24 send short messages between Highbank's A9 cores and the EnergyCore 25 Management Engine, primarily for cpufreq. Say Y here if you want 26 to use the PL320 IPCM support. 27 28config OMAP2PLUS_MBOX 29 tristate "OMAP2+ Mailbox framework support" 30 depends on ARCH_OMAP2PLUS 31 help 32 Mailbox implementation for OMAP family chips with hardware for 33 interprocessor communication involving DSP, IVA1.0 and IVA2 in 34 OMAP2/3; or IPU, IVA HD and DSP in OMAP4/5. Say Y here if you 35 want to use OMAP2+ Mailbox framework support. 36 37config OMAP_MBOX_KFIFO_SIZE 38 int "Mailbox kfifo default buffer size (bytes)" 39 depends on OMAP2PLUS_MBOX 40 default 256 41 help 42 Specify the default size of mailbox's kfifo buffers (bytes). 43 This can also be changed at runtime (via the mbox_kfifo_size 44 module parameter). 45 46config PCC 47 bool "Platform Communication Channel Driver" 48 depends on ACPI 49 help 50 ACPI 5.0+ spec defines a generic mode of communication 51 between the OS and a platform such as the BMC. This medium 52 (PCC) is typically used by CPPC (ACPI CPU Performance management), 53 RAS (ACPI reliability protocol) and MPST (ACPI Memory power 54 states). Select this driver if your platform implements the 55 PCC clients mentioned above. 56 57config ALTERA_MBOX 58 tristate "Altera Mailbox" 59 depends on HAS_IOMEM 60 help 61 An implementation of the Altera Mailbox soft core. It is used 62 to send message between processors. Say Y here if you want to use the 63 Altera mailbox support. 64 65config BCM2835_MBOX 66 tristate "BCM2835 Mailbox" 67 depends on ARCH_BCM2835 68 help 69 An implementation of the BCM2385 Mailbox. It is used to invoke 70 the services of the Videocore. Say Y here if you want to use the 71 BCM2835 Mailbox. 72 73endif 74