From mboxrd@z Thu Jan 1 00:00:00 1970 From: linux@arm.linux.org.uk (Russell King - ARM Linux) Date: Fri, 5 Sep 2014 10:32:40 +0100 Subject: [PATCH v2 1/4] arm64, thunder: Add Kconfig option for Cavium Thunder SoC Family In-Reply-To: <1409903205-2762-2-git-send-email-rric@kernel.org> References: <1409903205-2762-1-git-send-email-rric@kernel.org> <1409903205-2762-2-git-send-email-rric@kernel.org> Message-ID: <20140905093239.GC30401@n2100.arm.linux.org.uk> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Fri, Sep 05, 2014 at 09:46:42AM +0200, Robert Richter wrote: > From: Radha Mohan Chintakuntla > > Increase maximum numbers of cpus to 32. This relates to current > maximal possible cpu number. Increasing this to 64 cpus will be a > separate patch not part of this enablement patches. > > Signed-off-by: Radha Mohan Chintakuntla > Signed-off-by: Robert Richter > --- > arch/arm64/Kconfig | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig > index fd4e81a4e1ce..77fb82b0f684 100644 > --- a/arch/arm64/Kconfig > +++ b/arch/arm64/Kconfig > @@ -134,6 +134,11 @@ source "kernel/Kconfig.freezer" > > menu "Platform selection" > > +config ARCH_THUNDER > + bool "Cavium Inc. Thunder SoC Family" > + help > + This enables support for Cavium's Thunder Family of SoCs. > + > config ARCH_VEXPRESS > bool "ARMv8 software model (Versatile Express)" > select ARCH_REQUIRE_GPIOLIB > @@ -256,6 +261,7 @@ config NR_CPUS > range 2 32 > depends on SMP > # These have to remain sorted largest to smallest > + default "32" if ARCH_THUNDER > default "8" Why do you need ARCH_THUNDER? If it's just to change this default, please don't bother - we don't do this kind of thing on x86, so why should it be done here? Just ensure that NR_CPUS is appropriately adjusted. Alternatively, look at how x86 deals with this (with X86_BIGSMP / MAXSMP). -- FTTC broadband for 0.8mile line: currently at 9.5Mbps down 400kbps up according to speedtest.net.