On 03/25/2015 06:25 PM, Praneeth Bajjuri wrote: > ARM errata 798181 is applicable for OMAP5/DRA7 based devices. So enable > the same in the build. > > DRA7xx is based on Cortex-A15 r2p2 revision. > > ARM Errata extract and workaround information is as below. > > On Cortex-A15 (r0p0..r3p2) the TLBI*IS/DSB operations are not > adequately shooting down all use of the old entries. The > ARM_ERRATA_798181 option enables the Linux kernel workaround > for this erratum which sends an IPI to the CPUs that are running > the same ASID as the one being invalidated. > > Signed-off-by: Praneeth Bajjuri <praneeth@xxxxxx> > --- > arch/arm/mach-omap2/Kconfig | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig > index c7d8d86..3e4b4ae 100644 > --- a/arch/arm/mach-omap2/Kconfig > +++ b/arch/arm/mach-omap2/Kconfig > @@ -69,6 +69,7 @@ config SOC_DRA7XX > select ARM_GIC > select HAVE_ARM_ARCH_TIMER > select IRQ_CROSSBAR > + select ARM_ERRATA_798181 if SMP > > config ARCH_OMAP2PLUS > bool > Gee thanks and Apologies on missing this patch. Acked-by: Nishanth Menon <nm@xxxxxx> Seen on DRA7 only builds, so kinda slipped radar a bit.. verified to apply on v4.0-rc1 -- Regards, Nishanth Menon -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
