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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/arch/mips/include/asm/asmmacro.h
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/*

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 * This file is subject to the terms and conditions of the GNU General Public

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 * License.  See the file "COPYING" in the main directory of this archive

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 * for more details.

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 *

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 * Copyright (C) 2003 Ralf Baechle

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 */

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#ifndef _ASM_ASMMACRO_H

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#define _ASM_ASMMACRO_H

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#include <asm/hazards.h>

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#ifdef CONFIG_32BIT

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#include <asm/asmmacro-32.h>

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#endif

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#ifdef CONFIG_64BIT

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#include <asm/asmmacro-64.h>

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#endif

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#ifdef CONFIG_MIPS_MT_SMTC

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#include <asm/mipsmtregs.h>

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#endif

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#ifdef CONFIG_MIPS_MT_SMTC

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	.macro	local_irq_enable reg=t0

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	mfc0	\reg, CP0_TCSTATUS

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	ori	\reg, \reg, TCSTATUS_IXMT

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	xori	\reg, \reg, TCSTATUS_IXMT

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	mtc0	\reg, CP0_TCSTATUS

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	_ehb

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	.endm

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	.macro	local_irq_disable reg=t0

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	mfc0	\reg, CP0_TCSTATUS

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	ori	\reg, \reg, TCSTATUS_IXMT

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	mtc0	\reg, CP0_TCSTATUS

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	_ehb

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	.endm

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#elif defined(CONFIG_CPU_MIPSR2)

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	.macro	local_irq_enable reg=t0

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	ei

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	irq_enable_hazard

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	.endm

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	.macro	local_irq_disable reg=t0

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	di

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	irq_disable_hazard

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	.endm

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#else

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	.macro	local_irq_enable reg=t0

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	mfc0	\reg, CP0_STATUS

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	ori	\reg, \reg, 1

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	mtc0	\reg, CP0_STATUS

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	irq_enable_hazard

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	.endm

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	.macro	local_irq_disable reg=t0

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	mfc0	\reg, CP0_STATUS

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	ori	\reg, \reg, 1

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	xori	\reg, \reg, 1

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	mtc0	\reg, CP0_STATUS

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	irq_disable_hazard

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	.endm

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#endif /* CONFIG_MIPS_MT_SMTC */

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/*

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 * Temporary until all gas have MT ASE support

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 */

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	.macro	DMT	reg=0

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	.word	0x41600bc1 | (\reg << 16)

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	.endm

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	.macro	EMT	reg=0

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	.word	0x41600be1 | (\reg << 16)

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	.endm

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	.macro	DVPE	reg=0

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	.word	0x41600001 | (\reg << 16)

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	.endm

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	.macro	EVPE	reg=0

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	.word	0x41600021 | (\reg << 16)

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	.endm

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	.macro	MFTR	rt=0, rd=0, u=0, sel=0

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	 .word	0x41000000 | (\rt << 16) | (\rd << 11) | (\u << 5) | (\sel)

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	.endm

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	.macro	MTTR	rt=0, rd=0, u=0, sel=0

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	 .word	0x41800000 | (\rt << 16) | (\rd << 11) | (\u << 5) | (\sel)

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	.endm

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#endif /* _ASM_ASMMACRO_H */

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