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Date: Wed, 25 Mar 2015 17:12:24 -0500 From: Nishanth Menon <nm@...com> To: Russell King <linux@....linux.org.uk>, Tony Lindgren <tony@...mide.com> CC: <praneeth@...com>, <linux-kernel@...r.kernel.org>, <linux-omap@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>, Nishanth Menon <nm@...com> Subject: [PATCH] ARM: DRA7: Enable Cortex A15 errata 798181 ARM errata 798181 is applicable for DRA7 based devices. So enable the same in the build. 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. Reported-by: Praneeth Kumar Bajjuri <praneeth@...com> Signed-off-by: Nishanth Menon <nm@...com> --- 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 2b8e47788062..1f78709adb05 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 -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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