| Babu Moger | b3a04ed | 2017-08-07 17:52:51 -0600 | [diff] [blame] | 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 | |
| Babu Moger | 34060b8 | 2017-08-07 17:52:52 -0600 | [diff] [blame] | 8 | #define EX_LD(x, y) \ |
| Babu Moger | b3a04ed | 2017-08-07 17:52:51 -0600 | [diff] [blame] | 9 | 98: x; \ |
| 10 | .section __ex_table,"a"; \ |
| 11 | .align 4; \ |
| Babu Moger | 34060b8 | 2017-08-07 17:52:52 -0600 | [diff] [blame] | 12 | .word 98b, y; \ |
| Babu Moger | b3a04ed | 2017-08-07 17:52:51 -0600 | [diff] [blame] | 13 | .text; \ |
| 14 | .align 4; |
| 15 | |
| Babu Moger | 34060b8 | 2017-08-07 17:52:52 -0600 | [diff] [blame] | 16 | #define EX_LD_FP(x, y) \ |
| Babu Moger | b3a04ed | 2017-08-07 17:52:51 -0600 | [diff] [blame] | 17 | 98: x; \ |
| 18 | .section __ex_table,"a"; \ |
| 19 | .align 4; \ |
| Babu Moger | 34060b8 | 2017-08-07 17:52:52 -0600 | [diff] [blame] | 20 | .word 98b, y##_fp; \ |
| Babu Moger | b3a04ed | 2017-08-07 17:52:51 -0600 | [diff] [blame] | 21 | .text; \ |
| 22 | .align 4; |
| 23 | |
| Babu Moger | b3a04ed | 2017-08-07 17:52:51 -0600 | [diff] [blame] | 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; \ |
| Babu Moger | 34060b8 | 2017-08-07 17:52:52 -0600 | [diff] [blame] | 37 | nop |
| Babu Moger | b3a04ed | 2017-08-07 17:52:51 -0600 | [diff] [blame] | 38 | #endif |
| 39 | |
| 40 | #include "M7memcpy.S" |