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bool "Mailbox Hardware Support"
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.
bool "ARM PL320 Mailbox"
depends on ARM_AMBA
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.
tristate "OMAP2+ Mailbox framework support"
depends on ARCH_OMAP2PLUS
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.
int "Mailbox kfifo default buffer size (bytes)"
depends on OMAP2PLUS_MBOX
Specify the default size of mailbox's kfifo buffers (bytes).
This can also be changed at runtime (via the mbox_kfifo_size
bool "Platform Communication Channel Driver"
depends on ACPI
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.