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