[PATCH] powerpc: fix VSX alignment handler for regs 32-63

[Michael Neuling]

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 <mi...@neuling.org>
---
 arch/powerpc/kernel/align.c |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

Index: linux-2.6-ozlabs/arch/powerpc/kernel/align.c
===================================================================
--- linux-2.6-ozlabs.orig/arch/powerpc/kernel/align.c
+++ linux-2.6-ozlabs/arch/powerpc/kernel/align.c
@@ -646,11 +646,16 @@ static int emulate_vsx(unsigned char __u
                       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 {
_______________________________________________
Linuxppc-dev mailing list
Linuxppc-dev@ozlabs.org
https://ozlabs.org/mailman/listinfo/linuxppc-dev