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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_32.c
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@@ -452,7 +452,7 @@ static int save_user_regs(struct pt_regs *regs, struct mcontext __user *frame,
* contains valid data
*/
if (current->thread.used_vsr) {
flush_vsx_to_thread(current);
__giveup_vsx(current);
if (copy_vsx_to_user(&frame->mc_vsregs, current))
return 1;
msr |= MSR_VSX;