| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | #ifndef __ASM_SH_UACCESS_64_H |
| 3 | #define __ASM_SH_UACCESS_64_H |
| 4 | |
| 5 | /* |
| 6 | * include/asm-sh/uaccess_64.h |
| 7 | * |
| 8 | * Copyright (C) 2000, 2001 Paolo Alberelli |
| 9 | * Copyright (C) 2003, 2004 Paul Mundt |
| 10 | * |
| 11 | * User space memory access functions |
| 12 | * |
| 13 | * Copyright (C) 1999 Niibe Yutaka |
| 14 | * |
| 15 | * Based on: |
| 16 | * MIPS implementation version 1.15 by |
| 17 | * Copyright (C) 1996, 1997, 1998 by Ralf Baechle |
| 18 | * and i386 version. |
| 19 | */ |
| 20 | |
| 21 | #define __get_user_size(x,ptr,size,retval) \ |
| 22 | do { \ |
| 23 | retval = 0; \ |
| 24 | x = 0; \ |
| 25 | switch (size) { \ |
| 26 | case 1: \ |
| 27 | retval = __get_user_asm_b((void *)&x, \ |
| 28 | (long)ptr); \ |
| 29 | break; \ |
| 30 | case 2: \ |
| 31 | retval = __get_user_asm_w((void *)&x, \ |
| 32 | (long)ptr); \ |
| 33 | break; \ |
| 34 | case 4: \ |
| 35 | retval = __get_user_asm_l((void *)&x, \ |
| 36 | (long)ptr); \ |
| 37 | break; \ |
| 38 | case 8: \ |
| 39 | retval = __get_user_asm_q((void *)&x, \ |
| 40 | (long)ptr); \ |
| 41 | break; \ |
| 42 | default: \ |
| 43 | __get_user_unknown(); \ |
| 44 | break; \ |
| 45 | } \ |
| 46 | } while (0) |
| 47 | |
| 48 | extern long __get_user_asm_b(void *, long); |
| 49 | extern long __get_user_asm_w(void *, long); |
| 50 | extern long __get_user_asm_l(void *, long); |
| 51 | extern long __get_user_asm_q(void *, long); |
| 52 | extern void __get_user_unknown(void); |
| 53 | |
| 54 | #define __put_user_size(x,ptr,size,retval) \ |
| 55 | do { \ |
| 56 | retval = 0; \ |
| 57 | switch (size) { \ |
| 58 | case 1: \ |
| 59 | retval = __put_user_asm_b((void *)&x, \ |
| 60 | (__force long)ptr); \ |
| 61 | break; \ |
| 62 | case 2: \ |
| 63 | retval = __put_user_asm_w((void *)&x, \ |
| 64 | (__force long)ptr); \ |
| 65 | break; \ |
| 66 | case 4: \ |
| 67 | retval = __put_user_asm_l((void *)&x, \ |
| 68 | (__force long)ptr); \ |
| 69 | break; \ |
| 70 | case 8: \ |
| 71 | retval = __put_user_asm_q((void *)&x, \ |
| 72 | (__force long)ptr); \ |
| 73 | break; \ |
| 74 | default: \ |
| 75 | __put_user_unknown(); \ |
| 76 | } \ |
| 77 | } while (0) |
| 78 | |
| 79 | extern long __put_user_asm_b(void *, long); |
| 80 | extern long __put_user_asm_w(void *, long); |
| 81 | extern long __put_user_asm_l(void *, long); |
| 82 | extern long __put_user_asm_q(void *, long); |
| 83 | extern void __put_user_unknown(void); |
| 84 | |
| 85 | #endif /* __ASM_SH_UACCESS_64_H */ |