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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/arch/arm/mach-ks8695/include/mach/entry-macro.S
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/*

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 * arch/arm/mach-ks8695/include/mach/entry-macro.S

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 *

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 * Copyright (C) 2006 Ben Dooks <[email protected]>

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 * Copyright (C) 2006 Simtec Electronics

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 *

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 * Low-level IRQ helper macros for KS8695

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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/regs-irq.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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		ldr	\base, =KS8695_IRQ_VA			@ Base address of interrupt controller

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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	\irqstat, [\base, #KS8695_INTMS]	@ Mask Status register

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		teq	\irqstat, #0

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		beq	1001f

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		mov	\irqnr, #0

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		tst	\irqstat, #0xff

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		moveq	\irqstat, \irqstat, lsr #8

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		addeq	\irqnr, \irqnr, #8

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		tsteq	\irqstat, #0xff

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		moveq	\irqstat, \irqstat, lsr #8

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		addeq	\irqnr, \irqnr, #8

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		tsteq	\irqstat, #0xff

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		moveq	\irqstat, \irqstat, lsr #8

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		addeq	\irqnr, \irqnr, #8

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		tst	\irqstat, #0x0f

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		moveq	\irqstat, \irqstat, lsr #4

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		addeq	\irqnr, \irqnr, #4

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		tst	\irqstat, #0x03

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		moveq	\irqstat, \irqstat, lsr #2

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		addeq	\irqnr, \irqnr, #2

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		tst	\irqstat, #0x01

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		addeqs	\irqnr, \irqnr, #1

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1001:

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	.endm

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