1/* 2 * Low-level IRQ helper macros for Nomadik platforms 3 * 4 * This file is licensed under the terms of the GNU General Public 5 * License version 2. This program is licensed "as is" without any 6 * warranty of any kind, whether express or implied. 7 */ 8 9#include <mach/hardware.h> 10#include <mach/irqs.h> 11 12 .macro disable_fiq 13 .endm 14 15 .macro get_irqnr_preamble, base, tmp 16 ldr \base, =IO_ADDRESS(NOMADIK_IC_BASE) 17 .endm 18 19 .macro arch_ret_to_user, tmp1, tmp2 20 .endm 21 22 .macro get_irqnr_and_base, irqnr, irqstat, base, tmp 23 24 /* This stanza gets the irq mask from one of two status registers */ 25 mov \irqnr, #0 26 ldr \irqstat, [\base, #VIC_REG_IRQSR0] @ get masked status 27 cmp \irqstat, #0 28 bne 1001f 29 add \irqnr, \irqnr, #32 30 ldr \irqstat, [\base, #VIC_REG_IRQSR1] @ get masked status 31 321001: tst \irqstat, #15 33 bne 1002f 34 add \irqnr, \irqnr, #4 35 movs \irqstat, \irqstat, lsr #4 36 bne 1001b 371002: tst \irqstat, #1 38 bne 1003f 39 add \irqnr, \irqnr, #1 40 movs \irqstat, \irqstat, lsr #1 41 bne 1002b 421003: /* EQ will be set if no irqs pending */ 43 .endm 44