On 01/07/14 10:48, David E. Box wrote: > On Tue, Jan 07, 2014 at 10:15:03AM -0800, Randy Dunlap wrote: >> On 01/07/14 10:03, David E. Box wrote: >>> From: "David E. Box" <[email protected]> >>> >>> diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig >>> index b51a746..6e199a5 100644 >>> --- a/drivers/platform/x86/Kconfig >>> +++ b/drivers/platform/x86/Kconfig >>> @@ -819,4 +819,14 @@ config PVPANIC >>> a paravirtualized device provided by QEMU; it lets a virtual machine >>> (guest) communicate panic events to the host. >>> >>> +config INTEL_BAYTRAIL_MBI >>> + tristate >> >> Is this kconfig option displayed when you run >> menuconfig/nconfig/xconfig/gconfig etc.? >> Doesn't it need a prompt string? >> How did you enable it and test it? >> > > It is not displayed on purpose. The driver isn't exposed to user space. > It was tested by adding the option to .config, both as module and built-in. > >>> + depends on PCI >>> + ---help--- >>> + Needed on Baytrail platforms for access to the IOSF Sideband Mailbox >>> + Interface. This is a requirement for systems that need to configure >>> + the PUNIT for power management features such as RAPL. Register >>> + addresses and r/w opcodes are defined in >> >> Think of users reading this. At least change "r/w" to read/write. >> What is IOSF? does it matter here? >> PUNIT? RAPL? >> > > If you don't know what the IOSF Sideband is you probably shouldn't be enabling > this feature. Users of this driver (of which for now there are few) will be > kernel space drivers that should have ample knowledge of the registers this > interface provides access to.
I see. Thanks. -- ~Randy -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
