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

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 * Copyright (C) 2007 Google, Inc.

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 * Author: Brian Swetland <[email protected]>

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 *

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

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 * License version 2, as published by the Free Software Foundation, and

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 * may be copied, distributed, and modified under those terms.

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 *

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 * This program is distributed in the hope that it will be useful,

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 * but WITHOUT ANY WARRANTY; without even the implied warranty of

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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

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 * GNU General Public License for more details.

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 *

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 */

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#include <mach/msm_iomap.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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	@ enable imprecise aborts

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	cpsie	a

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	mov	\base, #MSM_VIC_BASE

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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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	@ 0xD0 has irq# or old irq# if the irq has been handled

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	@ 0xD4 has irq# or -1 if none pending *but* if you just

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	@ read 0xD4 you never get the first irq for some reason

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	ldr	\irqnr, [\base, #0xD0]

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	ldr	\irqnr, [\base, #0xD4]

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	cmp	\irqnr, #0xffffffff

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	.endm

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