| /* 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 |
