Re: [PATCH 10/14] ARM: v6k: select TLS register code according to V6 variants

[Nicolas Pitre <nico@fluxnic.net>]

On Mon, 17 Jan 2011, Russell King - ARM Linux wrote:

> On Mon, Jan 17, 2011 at 10:36:35PM +0000, Russell King - ARM Linux wrote:
> > It may be better at some point to get rid of the CPU_32v* and replace
> > them with CPU_ARCH_V* instead, which makes it clear that these ones
> > definitely refer to the architecture versions.
> 
> Last point on this is that I think we want to sanitize PJ4.
> 
> If we think about CPU_V7 as being the selection of ARM CPUs which are V7
> architectures, CPU_PJ4 should be a separate config option selecting all
> the same symbols which CPU_V7 does - and that should also select proc-v7.S
> for building.
> 
> I'm not sure it makes sense to have (eg) the V7 perf events available on
> PJ4 or the ARM errata for their V7 cores?
> 
> Does PJ4 have VFPv3?  Is Neon available on PJ4?  What about the DCC
> debug registers?

Agreed.  Actually this is also the same issue with Dove.


Nicolas