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| author | Michael Neuling <mikey@neuling.org> | 2008-06-25 14:07:18 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2008-07-01 11:28:50 +1000 |
| commit | ce48b2100785e5ca629fb3aa8e3b50aca808f692 (patch) | |
| tree | 63532ff7cc68b18ca4902bd10e03fcbaaf01cade /arch/powerpc/kernel/ppc_ksyms.c | |
| parent | 72ffff5b1792b0fa4d40a8e2f3276fff999820ec (diff) | |
| download | op-kernel-dev-ce48b2100785e5ca629fb3aa8e3b50aca808f692.zip op-kernel-dev-ce48b2100785e5ca629fb3aa8e3b50aca808f692.tar.gz | |
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 <mikey@neuling.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/kernel/ppc_ksyms.c')
| -rw-r--r-- | arch/powerpc/kernel/ppc_ksyms.c | 3 |
1 files changed, 3 insertions, 0 deletions
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 */ |
