5c7dd7acc3
repo: https://github.com/T-head-Semi/linux commit: b1313fe517ca3703119dcc99ef3bbf75ab42bcfb Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
34 lines
711 B
ArmAsm
34 lines
711 B
ArmAsm
/* SPDX-License-Identifier: GPL-2.0 */
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/* NGcopy_from_user.S: Niagara optimized copy from userspace.
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*
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* Copyright (C) 2006, 2007 David S. Miller (davem@davemloft.net)
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*/
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#define EX_LD(x,y) \
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98: x; \
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.section __ex_table,"a";\
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.align 4; \
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.word 98b, y; \
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.text; \
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.align 4;
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#ifndef ASI_AIUS
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#define ASI_AIUS 0x11
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#endif
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#define FUNC_NAME NGcopy_from_user
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#define LOAD(type,addr,dest) type##a [addr] ASI_AIUS, dest
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#define LOAD_TWIN(addr_reg,dest0,dest1) \
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ldda [addr_reg] ASI_BLK_INIT_QUAD_LDD_AIUS, dest0
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#define EX_RETVAL(x) %g0
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#ifdef __KERNEL__
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#define PREAMBLE \
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rd %asi, %g1; \
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cmp %g1, ASI_AIUS; \
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bne,pn %icc, raw_copy_in_user; \
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nop
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#endif
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#include "NGmemcpy.S"
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