From ce48b2100785e5ca629fb3aa8e3b50aca808f692 Mon Sep 17 00:00:00 2001 From: Michael Neuling Date: Wed, 25 Jun 2008 14:07:18 +1000 Subject: powerpc: Add VSX context save/restore, ptrace and signal support This patch extends the floating point save and restore code to use the VSX load/stores when VSX is available. This will make FP context save/restore marginally slower on FP only code, when VSX is available, as it has to load/store 128bits rather than just 64bits. Mixing FP, VMX and VSX code will get constant architected state. The signals interface is extended to enable access to VSR 0-31 doubleword 1 after discussions with tool chain maintainers. Backward compatibility is maintained. The ptrace interface is also extended to allow access to VSR 0-31 full registers. Signed-off-by: Michael Neuling Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/ppc_ksyms.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'arch/powerpc/kernel/ppc_ksyms.c') diff --git a/arch/powerpc/kernel/ppc_ksyms.c b/arch/powerpc/kernel/ppc_ksyms.c index d3ac631..958ecb9 100644 --- a/arch/powerpc/kernel/ppc_ksyms.c +++ b/arch/powerpc/kernel/ppc_ksyms.c @@ -102,6 +102,9 @@ EXPORT_SYMBOL(giveup_fpu); #ifdef CONFIG_ALTIVEC EXPORT_SYMBOL(giveup_altivec); #endif /* CONFIG_ALTIVEC */ +#ifdef CONFIG_VSX +EXPORT_SYMBOL(giveup_vsx); +#endif /* CONFIG_VSX */ #ifdef CONFIG_SPE EXPORT_SYMBOL(giveup_spe); #endif /* CONFIG_SPE */ -- cgit v1.1