1/* 2 * arch/arm/mach-integrator/include/mach/entry-macro.S 3 * 4 * Low-level IRQ helper macros for Integrator platforms 5 * 6 * This file is licensed under the terms of the GNU General Public 7 * License version 2. This program is licensed "as is" without any 8 * warranty of any kind, whether express or implied. 9 */ 10#include <mach/hardware.h> 11#include <mach/platform.h> 12#include <mach/irqs.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, =IO_ADDRESS(INTEGRATOR_IC_BASE) 25 mov \irqnr, #IRQ_PIC_START 26 ldr \irqstat, [\base, #IRQ_STATUS] @ get masked status 27 ldr \base, =IO_ADDRESS(INTEGRATOR_HDR_BASE) 28 teq \irqstat, #0 29 ldreq \irqstat, [\base, #(INTEGRATOR_HDR_IC_OFFSET+IRQ_STATUS)] 30 moveq \irqnr, #IRQ_CIC_START 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