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