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40 lines
723 B
40 lines
723 B
/* |
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* M7copy_from_user.S: SPARC M7 optimized copy from userspace. |
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* |
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* Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. |
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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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#define EX_LD_FP(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##_fp; \ |
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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 M7copy_from_user |
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#define LOAD(type,addr,dest) type##a [addr] %asi, dest |
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#define EX_RETVAL(x) 0 |
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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 "M7memcpy.S"
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