diff options
Diffstat (limited to 'arch/powerpc/kernel/vecemu.c')
| -rw-r--r-- | arch/powerpc/kernel/vecemu.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/arch/powerpc/kernel/vecemu.c b/arch/powerpc/kernel/vecemu.c index 4acd3fb2b38e..1f5e3b4c8ae4 100644 --- a/arch/powerpc/kernel/vecemu.c +++ b/arch/powerpc/kernel/vecemu.c @@ -260,21 +260,23 @@ static unsigned int rfin(unsigned int x) int emulate_altivec(struct pt_regs *regs) { - unsigned int instr, i; + unsigned int instr, i, word; unsigned int va, vb, vc, vd; vector128 *vrs; if (get_user(instr, (unsigned int __user *) regs->nip)) return -EFAULT; - if ((instr >> 26) != 4) + + word = ppc_inst_val(instr); + if ((word >> 26) != 4) return -EINVAL; /* not an altivec instruction */ - vd = (instr >> 21) & 0x1f; - va = (instr >> 16) & 0x1f; - vb = (instr >> 11) & 0x1f; - vc = (instr >> 6) & 0x1f; + vd = (word >> 21) & 0x1f; + va = (word >> 16) & 0x1f; + vb = (word >> 11) & 0x1f; + vc = (word >> 6) & 0x1f; vrs = current->thread.vr_state.vr; - switch (instr & 0x3f) { + switch (word & 0x3f) { case 10: switch (vc) { case 0: /* vaddfp */ |