aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-s5p6442/include/mach/entry-macro.S
blob: 6d574edbf1ae03bd66dfa39f5f9e52068d6e234d (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
/* linux/arch/arm/mach-s5p6442/include/mach/entry-macro.S
 *
 * Copyright (c) 2010 Samsung Electronics Co., Ltd.
 *		http://www.samsung.com/
 *
 * Low-level IRQ helper macros for the Samsung S5P6442
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
*/

#include <asm/hardware/vic.h>
#include <mach/map.h>
#include <plat/irqs.h>

	.macro	disable_fiq
	.endm

	.macro	get_irqnr_preamble, base, tmp
	ldr	\base, =VA_VIC0
	.endm

	.macro	arch_ret_to_user, tmp1, tmp2
	.endm

	.macro	get_irqnr_and_base, irqnr, irqstat, base, tmp

	@ check the vic0
	mov	\irqnr, # S5P_IRQ_OFFSET + 31
	ldr	\irqstat, [ \base, # VIC_IRQ_STATUS ]
	teq	\irqstat, #0

	@ otherwise try vic1
	addeq	\tmp, \base, #(VA_VIC1 - VA_VIC0)
	addeq	\irqnr, \irqnr, #32
	ldreq	\irqstat, [ \tmp, # VIC_IRQ_STATUS ]
	teqeq	\irqstat, #0

	@ otherwise try vic2
	addeq	\tmp, \base, #(VA_VIC2 - VA_VIC0)
	addeq	\irqnr, \irqnr, #32
	ldreq	\irqstat, [ \tmp, # VIC_IRQ_STATUS ]
	teqeq	\irqstat, #0

	clzne	\irqstat, \irqstat
	subne	\irqnr, \irqnr, \irqstat
	.endm