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- /* SPDX-License-Identifier: GPL-2.0 */
- /* 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, raw_copy_in_user; \
- nop
- #endif
- #include "NGmemcpy.S"
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