This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / arch / powerpc / sysdev / dcr-low.S

diff --git a/arch/powerpc/sysdev/dcr-low.S b/arch/powerpc/sysdev/dcr-low.S
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+/*
+ * "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