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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/arch/arm/mach-omap1/include/mach/entry-macro.S
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/*

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 * arch/arm/mach-omap1/include/mach/entry-macro.S

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 *

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 * Low-level IRQ helper macros for OMAP-based platforms

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 *

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 * Copyright (C) 2009 Texas Instruments

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 *

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 * This file is licensed under  the terms of the GNU General Public

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 * License version 2. This program is licensed "as is" without any

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 * warranty of any kind, whether express or implied.

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 */

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#include <mach/hardware.h>

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#include <mach/io.h>

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#include <mach/irqs.h>

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#include <asm/hardware/gic.h>

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 		.macro	disable_fiq

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		.endm

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		.macro  get_irqnr_preamble, base, tmp

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		.endm

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		.macro  arch_ret_to_user, tmp1, tmp2

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		.endm

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		.macro	get_irqnr_and_base, irqnr, irqstat, base, tmp

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		ldr	\base, =OMAP1_IO_ADDRESS(OMAP_IH1_BASE)

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		ldr	\irqnr, [\base, #IRQ_ITR_REG_OFFSET]

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		ldr	\tmp, [\base, #IRQ_MIR_REG_OFFSET]

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		mov	\irqstat, #0xffffffff

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		bic	\tmp, \irqstat, \tmp

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		tst	\irqnr, \tmp

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		beq	1510f

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		ldr	\irqnr, [\base, #IRQ_SIR_FIQ_REG_OFFSET]

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		ldr	\tmp, =omap_irq_flags	@ irq flags address

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		ldr	\tmp, [\tmp, #0]	@ irq flags value

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		cmp	\irqnr, #0

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		ldreq	\irqnr, [\base, #IRQ_SIR_IRQ_REG_OFFSET]

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		cmpeq	\irqnr, \tmp

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		ldreq	\base, =OMAP1_IO_ADDRESS(OMAP_IH2_BASE)

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		ldreq	\irqnr, [\base, #IRQ_SIR_IRQ_REG_OFFSET]

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		addeqs	\irqnr, \irqnr, #32

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1510:

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		.endm

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