[PATCH] powerpc: fix VSX alignment handler for regs 32-63
From: Michael Neuling <hidden>
Date: 2009-02-13 05:08:58
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 <redacted> --- 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 *) ¤t->thread.TS_FPR(reg); + char *ptr; int ret = 0; flush_vsx_to_thread(current); + if (reg < 32) + ptr = (char *) ¤t->thread.TS_FPR(reg); + else + ptr = (char *) ¤t->thread.vr[reg - 32]; + if (flags & ST) ret = __copy_to_user(addr, ptr, length); else {