mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 10:45:23 +07:00
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
42 lines
886 B
ArmAsm
42 lines
886 B
ArmAsm
/*
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* arch/ppc/syslib/dcr.S
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*
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* "Indirect" DCR access
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*
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* Copyright (c) 2004 Eugene Surovegin <ebs@ebshome.net>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#include <asm/ppc_asm.h>
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#include <asm/processor.h>
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#define DCR_ACCESS_PROLOG(table) \
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rlwinm r3,r3,4,18,27; \
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lis r5,table@h; \
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ori r5,r5,table@l; \
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add r3,r3,r5; \
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mtctr r3; \
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bctr
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_GLOBAL(__mfdcr)
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DCR_ACCESS_PROLOG(__mfdcr_table)
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_GLOBAL(__mtdcr)
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DCR_ACCESS_PROLOG(__mtdcr_table)
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__mfdcr_table:
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mfdcr r3,0; blr
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__mtdcr_table:
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mtdcr 0,r4; blr
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dcr = 1
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.rept 1023
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mfdcr r3,dcr; blr
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mtdcr dcr,r4; blr
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dcr = dcr + 1
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.endr
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