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powerpc: fix giveup_vsx to save registers correctly

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giveup_vsx didn't save the FPU and VMX regsiters.  Change it to be
like giveup_fpr/altivec which save these registers.

Also update call sites where FPU and VMX are already saved to use the
original giveup_vsx (renamed to __giveup_vsx).

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Michael Neuling
2008-07-11 16:29:12 +10:00
committed by Benjamin Herrenschmidt
parent 01f4b8b8b8
commit 7c29217096
5 changed files with 16 additions and 7 deletions
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2
arch/powerpc/kernel/signal_64.c
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@@ -122,7 +122,7 @@ static long setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs,
* VMX data.
*/
if (current->thread.used_vsr) {
flush_vsx_to_thread(current);
__giveup_vsx(current);
v_regs += ELF_NVRREG;
err |= copy_vsx_to_user(v_regs, current);
/* set MSR_VSX in the MSR value in the frame to