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powerpc/vsx: Fix VSX alignment handler for regs 32-63

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Fix the VSX alignment handler for VSX registers > 32.  32-63 are stored
in the VMX part of the thread_struct not the FPR part.

Signed-off-by: Michael Neuling <mikey@neuling.org>
CC: stable@kernel.org (2.6.27 & .28 please)
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Michael Neuling 2009-02-12 19:08:58 +00:00 committed by Benjamin Herrenschmidt
parent 0047656e2a
commit 26456dcfb8
1 changed files with 6 additions and 1 deletions
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7
arch/powerpc/kernel/align.c
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@ -646,11 +646,16 @@ static int emulate_vsx(unsigned char __user *addr, unsigned int reg,
unsigned int areg, struct pt_regs *regs,
unsigned int flags, unsigned int length)
{
char *ptr = (char *) &current->thread.TS_FPR(reg);
char *ptr;
int ret = 0;
flush_vsx_to_thread(current);
if (reg < 32)
ptr = (char *) &current->thread.TS_FPR(reg);
else
ptr = (char *) &current->thread.vr[reg - 32];
if (flags & ST)
ret = __copy_to_user(addr, ptr, length);
else {