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authorWill Deacon <will.deacon@arm.com>2012-08-03 17:24:14 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-09-14 10:00:03 -0700
commit7de4da6fedad1267970c6640e47561c2d38ec0b4 (patch)
treee261e47fd98b8f0b64a8c70130733728d13d2d54
parent5ed0dc3c88fd7586d5ea0b615007bbcf1c7cf7ea (diff)
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ARM: 7483/1: vfp: only advertise VFPv4 in hwcaps if CONFIG_VFPv3 is enabled
commit 3d9fb0038a9b02febb01efc79a4a5d97f1822a90 upstream. VFPv4 support depends on the VFPv3 context save/restore code, so only advertise support in the hwcaps if the kernel can actually handle it. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--arch/arm/vfp/vfpmodule.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c
index 1ef803aa7a5..1f8241da03b 100644
--- a/arch/arm/vfp/vfpmodule.c
+++ b/arch/arm/vfp/vfpmodule.c
@@ -719,8 +719,10 @@ static int __init vfp_init(void)
if ((fmrx(MVFR1) & 0x000fff00) == 0x00011100)
elf_hwcap |= HWCAP_NEON;
#endif
+#ifdef CONFIG_VFPv3
if ((fmrx(MVFR1) & 0xf0000000) == 0x10000000)
elf_hwcap |= HWCAP_VFPv4;
+#endif
}
}
return 0;