1/*
2 *
3 * arch-arm/mach-u300/include/mach/entry-macro.S
4 *
5 *
6 * Copyright (C) 2006-2009 ST-Ericsson AB
7 * License terms: GNU General Public License (GPL) version 2
8 * Low-level IRQ helper macros for ST-Ericsson U300
9 * Author: Linus Walleij <linus.walleij@stericsson.com>
10 */
11#include <mach/hardware.h>
12#include <asm/hardware/vic.h>
13
14	.macro	disable_fiq
15	.endm
16
17	.macro  get_irqnr_preamble, base, tmp
18	.endm
19
20	.macro  arch_ret_to_user, tmp1, tmp2
21	.endm
22
23	.macro	get_irqnr_and_base, irqnr, irqstat, base, tmp
24	ldr	\base, = U300_AHB_PER_VIRT_BASE-U300_AHB_PER_PHYS_BASE+U300_INTCON0_BASE
25	ldr	\irqstat, [\base, #VIC_IRQ_STATUS] @ get masked status
26	mov	\irqnr, #0
27	teq	\irqstat, #0
28	bne	1002f
291001:	ldr	\base, = U300_AHB_PER_VIRT_BASE-U300_AHB_PER_PHYS_BASE+U300_INTCON1_BASE
30	ldr	\irqstat, [\base, #VIC_IRQ_STATUS] @ get masked status
31	mov	\irqnr, #32
32	teq	\irqstat, #0
33	beq	1003f
341002:	tst	\irqstat, #1
35	bne	1003f
36	add	\irqnr, \irqnr, #1
37	movs	\irqstat, \irqstat, lsr #1
38	bne	1002b
391003:		/* EQ will be set if no irqs pending */
40	.endm
41