On Thu, Jan 28, 2016 at 11:08:20AM +0000, Will Deacon wrote: > On Thu, Jan 28, 2016 at 10:34:41AM +0000, Catalin Marinas wrote: > > On Wed, Jan 27, 2016 at 04:10:30PM -0700, dann frazier wrote: > > > 16K page size is an optional feature of the architecture, and is not > > > supported by the X-Gene SoC family. > > > > > > Signed-off-by: dann frazier <[email protected]> > > > --- > > > arch/arm64/Kconfig.platforms | 1 + > > > 1 file changed, 1 insertion(+) > > > > > > diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms > > > index 21074f6..b241290 100644 > > > --- a/arch/arm64/Kconfig.platforms > > > +++ b/arch/arm64/Kconfig.platforms > > > @@ -133,6 +133,7 @@ config ARCH_VEXPRESS > > > > > > config ARCH_XGENE > > > bool "AppliedMicro X-Gene SOC Family" > > > + depends on !ARM64_16K_PAGES > > > help > > > This enables support for AppliedMicro X-Gene SOC Family > > > > This would be the case on Juno as well. But maybe at some point the > > X-Gene family would gain a CPU with such support. > > > > Anyway, I would rather make 16K pages depend on EXPERT, make it a bit > > harder to enable. We've had a few questions recently about enabling it > > on CPUs that don't have such feature. > > I thought there was also a suggestion that we could fail gracefully in > the EFI stub if we detected an unsupported page size?
Yup. There are other things we could/should test, too. I believe Jeremy had a patch, but due to churn in that area it didn't get picked up. Mark.
