From: Tony Lindgren <tony@atomide.com>
Date: Thu, 1 Jul 2010 12:41:05 +0000 (+0100)
Subject: ARM: 6203/1: Make VFPv3 usable on ARMv6
X-Git-Tag: v2.6.36-rc1~591^2~2^4~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5aaf254409f8d58229107b59507a8235b715a960;p=pandora-kernel.git

ARM: 6203/1: Make VFPv3 usable on ARMv6

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 <tony@atomide.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

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