On Fri, Jan 28, 2011 at 01:10:56PM +0000, Catalin Marinas wrote: > On Fri, 2011-01-28 at 13:05 +0000, Russell King - ARM Linux wrote: > > On Fri, Jan 28, 2011 at 12:25:18PM +0000, Catalin Marinas wrote: > > > With your latest patches, do we use the TLS emulation on ARMv7 (UP) if > > > v6 is compiled in? If that's the case, we may have a problem - I talked > > > to the toolchain guys and it looks like code optimised for ARMv7 reads > > > the TLS register directly without going through the kuser helper. > > > > That's not a problem, because you wouldn't run ARMv7 optimized userspace > > on an ARMv6 CPU. That's not what this whole exercise is about. > > But you can run ARMv7 optimised userspace on ARMv7 CPU with a kernel > image compiled for v6+v7.
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