Subject: [PATCH 2/2] arm: Make VFPv3 usable on ARMv6

From: [email-masked] (Tony Lindgren)
Date: Thu, 1 Jul 2010 15:42:53 +0300

* Catalin Marinas <[email-masked]> [100625 16:44]:
> On Wed, 2010-06-23 at 08:57 +0100, Tony Lindgren wrote:
> > MVFR0 and MVFR1 are only available starting with ARM1136 r1p0 release
> > according to "B.5 VFP changes" in DDI0211F_arm1136_r1p0_trm.pdf. This is
> > also when TLS register got added, so we can use HAS_TLS also to test for
> > MVFR0 and MVFR1.
> > 
> > Otherwise VFPFMRX and VFPFMXR access fails and we get:
> > 
> > Internal error: Oops - undefined instruction: 0 [#1]
> > PC is at no_old_VFP_process+0x8/0x3c
> > LR is at __und_svc+0x48/0x80
> > ...
> > 
> > Signed-off-by: Tony Lindgren <[email-masked]>
> 
> The new version looks fine to me.
> 
> Acked-by: Catalin Marinas <[email-masked]>

Thanks. Added your ack and posted to Russell's patch system:

http://www.arm.linux.org.uk/developer/patches/viewpatch.php?id=6203/1

Regards,

Tony