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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" |