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* arch/arm/mach-integrator/include/mach/entry-macro.S
* Low-level IRQ helper macros for Integrator platforms
* 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 <mach/hardware.h>
#include <mach/platform.h>
#include <mach/irqs.h>
.macro disable_fiq
.macro get_irqnr_preamble, base, tmp
.macro arch_ret_to_user, tmp1, tmp2
.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
/* FIXME: should not be using soo many LDRs here */
mov \irqnr, #IRQ_PIC_START
ldr \irqstat, [\base, #IRQ_STATUS] @ get masked status
teq \irqstat, #0
ldreq \irqstat, [\base, #(INTEGRATOR_HDR_IC_OFFSET+IRQ_STATUS)]
moveq \irqnr, #IRQ_CIC_START
1001: tst \irqstat, #15
bne 1002f
add \irqnr, \irqnr, #4
movs \irqstat, \irqstat, lsr #4
bne 1001b
1002: tst \irqstat, #1
bne 1003f
add \irqnr, \irqnr, #1
movs \irqstat, \irqstat, lsr #1
bne 1002b
1003: /* EQ will be set if no irqs pending */