| /* arch/arm/mach-s3c6400/include/mach/entry-macro.S |
| * |
| * Copyright 2008 Openmoko, Inc. |
| * Copyright 2008 Simtec Electronics |
| * http://armlinux.simtec.co.uk/ |
| * Ben Dooks <ben@simtec.co.uk> |
| * |
| * Low-level IRQ helper macros for the Samsung S3C64XX series |
| * |
| * This file is licensed under the terms of the GNU General Public |
| * License version 2. This program is licensed "as is" without any |
| * warranty of any kind, whether express or implied. |
| */ |
| |
| #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, =S3C_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, # S3C_IRQ_OFFSET + 31 |
| ldr \irqstat, [ \base, # VIC_IRQ_STATUS ] |
| teq \irqstat, #0 |
| |
| @ otherwise try vic1 |
| addeq \tmp, \base, #(S3C_VA_VIC1 - S3C_VA_VIC0) |
| addeq \irqnr, \irqnr, #32 |
| ldreq \irqstat, [ \tmp, # VIC_IRQ_STATUS ] |
| teqeq \irqstat, #0 |
| |
| clzne \irqstat, \irqstat |
| subne \irqnr, \irqnr, \irqstat |
| .endm |
