linux_dsm_epyc7002/arch/powerpc/sysdev/dcr.S
Jon Mason 2ef9481e66 [PATCH] powerpc: trivial: modify comments to refer to new location of files
This patch removes all self references and fixes references to files
in the now defunct arch/ppc64 tree.  I think this accomplises
everything wanted, though there might be a few references I missed.

Signed-off-by: Jon Mason <jdmason@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-10 16:53:51 +11:00

40 lines
858 B
ArmAsm

/*
* "Indirect" DCR access
*
* Copyright (c) 2004 Eugene Surovegin <ebs@ebshome.net>
*
* 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.
*/
#include <asm/ppc_asm.h>
#include <asm/processor.h>
#define DCR_ACCESS_PROLOG(table) \
rlwinm r3,r3,4,18,27; \
lis r5,table@h; \
ori r5,r5,table@l; \
add r3,r3,r5; \
mtctr r3; \
bctr
_GLOBAL(__mfdcr)
DCR_ACCESS_PROLOG(__mfdcr_table)
_GLOBAL(__mtdcr)
DCR_ACCESS_PROLOG(__mtdcr_table)
__mfdcr_table:
mfdcr r3,0; blr
__mtdcr_table:
mtdcr 0,r4; blr
dcr = 1
.rept 1023
mfdcr r3,dcr; blr
mtdcr dcr,r4; blr
dcr = dcr + 1
.endr