Re: [Xen-devel] [PATCH v4] arm: remove !CPU_V6 and !GENERIC_ATOMIC64 build dependencies for XEN

2014-01-22 Thread Ian Campbell
On Tue, 2014-01-21 at 13:44 +, Stefano Stabellini wrote: > Remove !GENERIC_ATOMIC64 build dependency: > - introduce xen_atomic64_xchg > - use it to implement xchg_xen_ulong > > Remove !CPU_V6 build dependency: > - introduce __cmpxchg8 and __cmpxchg16, compiled even ifdef > CONFIG_CPU_V6 > -

Re: [Xen-devel] [PATCH v4] arm: remove !CPU_V6 and !GENERIC_ATOMIC64 build dependencies for XEN

2014-01-22 Thread Ian Campbell
On Tue, 2014-01-21 at 13:44 +, Stefano Stabellini wrote: Remove !GENERIC_ATOMIC64 build dependency: - introduce xen_atomic64_xchg - use it to implement xchg_xen_ulong Remove !CPU_V6 build dependency: - introduce __cmpxchg8 and __cmpxchg16, compiled even ifdef CONFIG_CPU_V6 -