On Wed, Feb 09, 2011 at 10:01:33AM +0000, Catalin Marinas wrote: > Could we make the domains usage a run-time feature based on the > architecture version? For ARMv7, we need to have the vectors page > read-only anyway if the SWP emulation is enabled (and I posted a > simple patch in a reply to your email). > > The issue I see is that ARM11MPCore is reported as v7 though we still > use domains on this processor (we could always remove the domains if > TLS register is available or use some more precise architecture > version identification). We could also do the below, which I think is more logical - SWP emulation requires that CPU domains aren't enabled, so let's make that explicit in the Kconfig. arch/arm/mm/Kconfig | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig index c9d2d56..7ea482b 100644 --- a/arch/arm/mm/Kconfig +++ b/arch/arm/mm/Kconfig @@ -644,7 +644,7 @@ config ARM_THUMBEE config SWP_EMULATE bool "Emulate SWP/SWPB instructions" - depends on CPU_V7 && !CPU_V6 + depends on !CPU_USE_DOMAINS && CPU_V7 && !CPU_V6 select HAVE_PROC_CPU if PROC_FS default y if SMP help -- 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
