* [PATCH] powerpc: fix VSX alignment handler for regs 32-63
@ 2009-02-13 5:08 Michael Neuling
0 siblings, 0 replies; only message in thread
From: Michael Neuling @ 2009-02-13 5:08 UTC (permalink / raw)
To: benh; +Cc: linuxppc-dev
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>
---
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 {
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2009-02-13 5:08 [PATCH] powerpc: fix VSX alignment handler for regs 32-63 Michael Neuling
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