Messages in this thread | | | Date | Thu, 9 Jan 2014 10:30:05 +0000 | From | Will Deacon <> | Subject | Re: [PATCH v3] arm: remove !CPU_V6 and !GENERIC_ATOMIC64 build dependencies for XEN |
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Hi Stefano,
On Wed, Jan 08, 2014 at 06:00:23PM +0000, Stefano Stabellini wrote: > Remove !GENERIC_ATOMIC64 build dependency: > - rename atomic64_xchg to armv7_atomic64_xchg and define it even ifdef > GENERIC_ATOMIC64; > - call armv7_atomic64_xchg directly from xen/events.h. > > Remove !CPU_V6 build dependency: > - introduce __cmpxchg8 and __cmpxchg16, compiled even ifdef > CONFIG_CPU_V6; > - implement sync_cmpxchg using __cmpxchg8 and __cmpxchg16. > > Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> > CC: arnd@arndb.de > CC: linux@arm.linux.org.uk > CC: will.deacon@arm.com > CC: gang.chen@asianux.com > CC: catalin.marinas@arm.com > CC: jaccon.bastiaansen@gmail.com > CC: linux-arm-kernel@lists.infradead.org > CC: linux-kernel@vger.kernel.org >
I'm confused here. It looks like you want to call armv7 code in a v6 kernel. What am I missing?
Will
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