1/*
2 * arch/arm/mach-iop32x/include/mach/entry-macro.S
3 *
4 * Low-level IRQ helper macros for IOP32x-based platforms
5 *
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.
9 */
10#include <mach/iop32x.h>
11
12	.macro get_irqnr_preamble, base, tmp
13	mrc	p15, 0, \tmp, c15, c1, 0
14	orr	\tmp, \tmp, #(1 << 6)
15	mcr	p15, 0, \tmp, c15, c1, 0	@ Enable cp6 access
16	mrc	p15, 0, \tmp, c15, c1, 0
17	mov	\tmp, \tmp
18	sub	pc, pc, #4			@ cp_wait
19	.endm
20
21	.macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
22	mrc     p6, 0, \irqstat, c8, c0, 0	@ Read IINTSRC
23	cmp     \irqstat, #0
24	clzne   \irqnr, \irqstat
25	rsbne   \irqnr, \irqnr, #31
26	.endm
27
28	.macro arch_ret_to_user, tmp1, tmp2
29	mrc	p15, 0, \tmp1, c15, c1, 0
30	ands	\tmp2, \tmp1, #(1 << 6)
31	bicne	\tmp1, \tmp1, #(1 << 6)
32	mcrne	p15, 0, \tmp1, c15, c1, 0	@ Disable cp6 access
33	.endm
34