2 * arch/arm/mach-iop32x/include/mach/entry-macro.S
4 * Low-level IRQ helper macros for IOP32x-based platforms
6 * This file is licensed under the terms of the GNU General Public
7 * License version 2. This program is licensed "as is" without any
8 * warranty of any kind, whether express or implied.
10 #include <mach/iop32x.h>
15 .macro get_irqnr_preamble, base, tmp
16 mrc p15, 0, \tmp, c15, c1, 0
17 orr \tmp, \tmp, #(1 << 6)
18 mcr p15, 0, \tmp, c15, c1, 0 @ Enable cp6 access
19 mrc p15, 0, \tmp, c15, c1, 0
21 sub pc, pc, #4 @ cp_wait
24 .macro get_irqnr_and_base, irqnr, irqstat, base, tmp
25 mrc p6, 0, \irqstat, c8, c0, 0 @ Read IINTSRC
27 clzne \irqnr, \irqstat
28 rsbne \irqnr, \irqnr, #31
31 .macro arch_ret_to_user, tmp1, tmp2
32 mrc p15, 0, \tmp1, c15, c1, 0
33 ands \tmp2, \tmp1, #(1 << 6)
34 bicne \tmp1, \tmp1, #(1 << 6)
35 mcrne p15, 0, \tmp1, c15, c1, 0 @ Disable cp6 access