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- /*
- *
- * arch-arm/mach-u300/include/mach/entry-macro.S
- *
- *
- * Copyright (C) 2006-2009 ST-Ericsson AB
- * License terms: GNU General Public License (GPL) version 2
- * Low-level IRQ helper macros for ST-Ericsson U300
- * Author: Linus Walleij <linus.walleij@stericsson.com>
- */
- #include <mach/hardware.h>
- #include <asm/hardware/vic.h>
- .macro disable_fiq
- .endm
- .macro get_irqnr_preamble, base, tmp
- .endm
- .macro arch_ret_to_user, tmp1, tmp2
- .endm
- .macro get_irqnr_and_base, irqnr, irqstat, base, tmp
- ldr \base, = U300_AHB_PER_VIRT_BASE-U300_AHB_PER_PHYS_BASE+U300_INTCON0_BASE
- ldr \irqstat, [\base, #VIC_IRQ_STATUS] @ get masked status
- mov \irqnr, #0
- teq \irqstat, #0
- bne 1002f
- 1001: ldr \base, = U300_AHB_PER_VIRT_BASE-U300_AHB_PER_PHYS_BASE+U300_INTCON1_BASE
- ldr \irqstat, [\base, #VIC_IRQ_STATUS] @ get masked status
- mov \irqnr, #32
- teq \irqstat, #0
- beq 1003f
- 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 */
- .endm
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