From 26456dcfb8d8e43b1b64b2a14710694cf7a72f05 Mon Sep 17 00:00:00 2001 From: Michael Neuling Date: Thu, 12 Feb 2009 19:08:58 +0000 Subject: [PATCH] powerpc/vsx: Fix VSX alignment handler for regs 32-63 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 CC: stable@kernel.org (2.6.27 & .28 please) Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/kernel/align.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/kernel/align.c b/arch/powerpc/kernel/align.c index 5af4e9b2dbe2..ada06924a423 100644 --- a/arch/powerpc/kernel/align.c +++ b/arch/powerpc/kernel/align.c @@ -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 *) ¤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 { -- 2.20.1