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kernel add
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/* NGcopy_from_user.S: Niagara optimized copy from userspace.
*
* Copyright (C) 2006, 2007 David S. Miller (davem@davemloft.net)
*/
#define EX_LD(x,y) \
98: x; \
.section __ex_table,"a";\
.align 4; \
.word 98b, y; \
.text; \
.align 4;
#ifndef ASI_AIUS
#define ASI_AIUS 0x11
#endif
#define FUNC_NAME NGcopy_from_user
#define LOAD(type,addr,dest) type##a [addr] ASI_AIUS, dest
#define LOAD_TWIN(addr_reg,dest0,dest1) \
ldda [addr_reg] ASI_BLK_INIT_QUAD_LDD_AIUS, dest0
#define EX_RETVAL(x) %g0
#ifdef __KERNEL__
#define PREAMBLE \
rd %asi, %g1; \
cmp %g1, ASI_AIUS; \
bne,pn %icc, ___copy_in_user; \
nop
#endif
#include "NGmemcpy.S"
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