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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/arch/mips/include/asm/asmmacro-64.h
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/*

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 * asmmacro.h: Assembler macros to make things easier to read.

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 *

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 * Copyright (C) 1996 David S. Miller ([email protected])

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 * Copyright (C) 1998, 1999 Ralf Baechle

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 * Copyright (C) 1999 Silicon Graphics, Inc.

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 */

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#ifndef _ASM_ASMMACRO_64_H

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#define _ASM_ASMMACRO_64_H

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#include <asm/asm-offsets.h>

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#include <asm/regdef.h>

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#include <asm/fpregdef.h>

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#include <asm/mipsregs.h>

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	.macro	fpu_save_16even thread tmp=t0

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	cfc1	\tmp, fcr31

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	sdc1	$f0,  THREAD_FPR0(\thread)

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	sdc1	$f2,  THREAD_FPR2(\thread)

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	sdc1	$f4,  THREAD_FPR4(\thread)

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	sdc1	$f6,  THREAD_FPR6(\thread)

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	sdc1	$f8,  THREAD_FPR8(\thread)

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	sdc1	$f10, THREAD_FPR10(\thread)

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	sdc1	$f12, THREAD_FPR12(\thread)

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	sdc1	$f14, THREAD_FPR14(\thread)

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	sdc1	$f16, THREAD_FPR16(\thread)

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	sdc1	$f18, THREAD_FPR18(\thread)

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	sdc1	$f20, THREAD_FPR20(\thread)

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	sdc1	$f22, THREAD_FPR22(\thread)

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	sdc1	$f24, THREAD_FPR24(\thread)

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	sdc1	$f26, THREAD_FPR26(\thread)

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	sdc1	$f28, THREAD_FPR28(\thread)

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	sdc1	$f30, THREAD_FPR30(\thread)

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	sw	\tmp, THREAD_FCR31(\thread)

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	.endm

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	.macro	fpu_save_16odd thread

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	sdc1	$f1,  THREAD_FPR1(\thread)

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	sdc1	$f3,  THREAD_FPR3(\thread)

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	sdc1	$f5,  THREAD_FPR5(\thread)

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	sdc1	$f7,  THREAD_FPR7(\thread)

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	sdc1	$f9,  THREAD_FPR9(\thread)

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	sdc1	$f11, THREAD_FPR11(\thread)

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	sdc1	$f13, THREAD_FPR13(\thread)

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	sdc1	$f15, THREAD_FPR15(\thread)

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	sdc1	$f17, THREAD_FPR17(\thread)

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	sdc1	$f19, THREAD_FPR19(\thread)

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	sdc1	$f21, THREAD_FPR21(\thread)

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	sdc1	$f23, THREAD_FPR23(\thread)

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	sdc1	$f25, THREAD_FPR25(\thread)

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	sdc1	$f27, THREAD_FPR27(\thread)

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	sdc1	$f29, THREAD_FPR29(\thread)

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	sdc1	$f31, THREAD_FPR31(\thread)

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	.endm

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	.macro	fpu_save_double thread status tmp

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	sll	\tmp, \status, 5

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	bgez	\tmp, 2f

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	fpu_save_16odd \thread

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2:

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	fpu_save_16even \thread \tmp

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	.endm

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	.macro	fpu_restore_16even thread tmp=t0

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	lw	\tmp, THREAD_FCR31(\thread)

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	ldc1	$f0,  THREAD_FPR0(\thread)

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	ldc1	$f2,  THREAD_FPR2(\thread)

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	ldc1	$f4,  THREAD_FPR4(\thread)

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	ldc1	$f6,  THREAD_FPR6(\thread)

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	ldc1	$f8,  THREAD_FPR8(\thread)

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	ldc1	$f10, THREAD_FPR10(\thread)

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	ldc1	$f12, THREAD_FPR12(\thread)

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	ldc1	$f14, THREAD_FPR14(\thread)

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	ldc1	$f16, THREAD_FPR16(\thread)

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	ldc1	$f18, THREAD_FPR18(\thread)

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	ldc1	$f20, THREAD_FPR20(\thread)

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	ldc1	$f22, THREAD_FPR22(\thread)

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	ldc1	$f24, THREAD_FPR24(\thread)

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	ldc1	$f26, THREAD_FPR26(\thread)

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	ldc1	$f28, THREAD_FPR28(\thread)

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	ldc1	$f30, THREAD_FPR30(\thread)

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	ctc1	\tmp, fcr31

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	.endm

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	.macro	fpu_restore_16odd thread

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	ldc1	$f1,  THREAD_FPR1(\thread)

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	ldc1	$f3,  THREAD_FPR3(\thread)

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	ldc1	$f5,  THREAD_FPR5(\thread)

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	ldc1	$f7,  THREAD_FPR7(\thread)

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	ldc1	$f9,  THREAD_FPR9(\thread)

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	ldc1	$f11, THREAD_FPR11(\thread)

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	ldc1	$f13, THREAD_FPR13(\thread)

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	ldc1	$f15, THREAD_FPR15(\thread)

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	ldc1	$f17, THREAD_FPR17(\thread)

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	ldc1	$f19, THREAD_FPR19(\thread)

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	ldc1	$f21, THREAD_FPR21(\thread)

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	ldc1	$f23, THREAD_FPR23(\thread)

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	ldc1	$f25, THREAD_FPR25(\thread)

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	ldc1	$f27, THREAD_FPR27(\thread)

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	ldc1	$f29, THREAD_FPR29(\thread)

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	ldc1	$f31, THREAD_FPR31(\thread)

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	.endm

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	.macro	fpu_restore_double thread status tmp

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	sll	\tmp, \status, 5

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	bgez	\tmp, 1f				# 16 register mode?

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	fpu_restore_16odd \thread

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1:	fpu_restore_16even \thread \tmp

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	.endm

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	.macro	cpu_save_nonscratch thread

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	LONG_S	s0, THREAD_REG16(\thread)

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	LONG_S	s1, THREAD_REG17(\thread)

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	LONG_S	s2, THREAD_REG18(\thread)

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	LONG_S	s3, THREAD_REG19(\thread)

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	LONG_S	s4, THREAD_REG20(\thread)

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	LONG_S	s5, THREAD_REG21(\thread)

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	LONG_S	s6, THREAD_REG22(\thread)

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	LONG_S	s7, THREAD_REG23(\thread)

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	LONG_S	sp, THREAD_REG29(\thread)

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	LONG_S	fp, THREAD_REG30(\thread)

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	.endm

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	.macro	cpu_restore_nonscratch thread

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	LONG_L	s0, THREAD_REG16(\thread)

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	LONG_L	s1, THREAD_REG17(\thread)

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	LONG_L	s2, THREAD_REG18(\thread)

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	LONG_L	s3, THREAD_REG19(\thread)

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	LONG_L	s4, THREAD_REG20(\thread)

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	LONG_L	s5, THREAD_REG21(\thread)

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	LONG_L	s6, THREAD_REG22(\thread)

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	LONG_L	s7, THREAD_REG23(\thread)

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	LONG_L	sp, THREAD_REG29(\thread)

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	LONG_L	fp, THREAD_REG30(\thread)

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	LONG_L	ra, THREAD_REG31(\thread)

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	.endm

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#endif /* _ASM_ASMMACRO_64_H */

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