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| author | Michael Neuling <mikey@neuling.org> | 2009-02-12 19:08:58 (GMT) |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-02-13 05:37:45 (GMT) |
| commit | 26456dcfb8d8e43b1b64b2a14710694cf7a72f05 (patch) | |
| tree | 2a655c7515a5c27ea20a51a206e4d3b8df0edcba | |
| parent | 0047656e2a97d4452dd7df9e52591a7afe21a263 (diff) | |
| download | linux-26456dcfb8d8e43b1b64b2a14710694cf7a72f05.tar.xz | |
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>
| -rw-r--r-- | arch/powerpc/kernel/align.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/align.c b/arch/powerpc/kernel/align.c index 5af4e9b..ada0692 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 { |