| 1 | /* |
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| 2 | * M7copy_from_user.S: SPARC M7 optimized copy from userspace. |
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| 3 | * |
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| 4 | * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. |
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| 5 | */ |
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| 6 | |
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| 7 | |
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| 8 | #define EX_LD(x, y) \ |
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| 9 | 98: x; \ |
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| 10 | .section __ex_table,"a"; \ |
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| 11 | .align 4; \ |
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| 12 | .word 98b, y; \ |
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| 13 | .text; \ |
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| 14 | .align 4; |
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| 15 | |
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| 16 | #define EX_LD_FP(x, y) \ |
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| 17 | 98: x; \ |
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| 18 | .section __ex_table,"a"; \ |
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| 19 | .align 4; \ |
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| 20 | .word 98b, y##_fp; \ |
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| 21 | .text; \ |
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| 22 | .align 4; |
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| 23 | |
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| 24 | #ifndef ASI_AIUS |
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| 25 | #define ASI_AIUS 0x11 |
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| 26 | #endif |
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| 27 | |
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| 28 | #define FUNC_NAME M7copy_from_user |
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| 29 | #define LOAD(type,addr,dest) type##a [addr] %asi, dest |
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| 30 | #define EX_RETVAL(x) 0 |
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| 31 | |
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| 32 | #ifdef __KERNEL__ |
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| 33 | #define PREAMBLE \ |
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| 34 | rd %asi, %g1; \ |
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| 35 | cmp %g1, ASI_AIUS; \ |
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| 36 | bne,pn %icc, raw_copy_in_user; \ |
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| 37 | nop |
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| 38 | #endif |
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| 39 | |
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| 40 | #include "M7memcpy.S" |
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| 41 | |
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