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authorMichael Neuling <mikey@neuling.org>2009-02-12 19:08:58 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-02-13 16:37:45 +1100
commit26456dcfb8d8e43b1b64b2a14710694cf7a72f05 (patch)
tree2a655c7515a5c27ea20a51a206e4d3b8df0edcba /arch/powerpc/kernel/align.c
parent0047656e2a97d4452dd7df9e52591a7afe21a263 (diff)
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 <mikey@neuling.org> CC: stable@kernel.org (2.6.27 & .28 please) Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/align.c')
-rw-r--r--arch/powerpc/kernel/align.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/align.c b/arch/powerpc/kernel/align.c
index 5af4e9b2dbe..ada06924a42 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 *) &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 {