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2874c5fd28
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
41 lines
533 B
ArmAsm
41 lines
533 B
ArmAsm
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* This file contains miscellaneous low-level functions for PPC 44x.
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* Copyright 2007 David Gibson <dwg@au1.ibm.com>, IBM Corporation.
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*/
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#include <asm/reg.h>
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#include <asm/ppc_asm.h>
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.text
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/*
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* Do an IO access in AS1
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*/
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_GLOBAL(as1_readb)
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mfmsr r7
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ori r0,r7,MSR_DS
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sync
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mtmsr r0
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sync
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isync
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lbz r3,0(r3)
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sync
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mtmsr r7
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sync
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isync
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blr
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_GLOBAL(as1_writeb)
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mfmsr r7
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ori r0,r7,MSR_DS
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sync
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mtmsr r0
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sync
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isync
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stb r3,0(r4)
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sync
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mtmsr r7
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sync
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isync
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blr
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