1 /*
2 * Copyright (c) 2020 HiSilicon (Shanghai) Technologies CO., LIMITED.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 * Description: math
15 *
16 * Create: 2021-12-16
17 */
18
19 #include <linux/module.h>
20 #include <linux/kernel.h>
21 #include "soc_osal.h"
22
23 /* the result of u64/u32. */
osal_div_u64(unsigned long long dividend,unsigned int divisor)24 unsigned long long osal_div_u64(unsigned long long dividend, unsigned int divisor)
25 {
26 return div_u64(dividend, divisor);
27 }
28
29 /* the result of s64/s32. */
osal_div_s64(long long dividend,int divisor)30 long long osal_div_s64(long long dividend, int divisor)
31 {
32 return div_s64(dividend, divisor);
33 }
34
35 /* the result of u64/u64. */
osal_div64_u64(unsigned long long dividend,unsigned long long divisor)36 unsigned long long osal_div64_u64(unsigned long long dividend, unsigned long long divisor)
37 {
38 return div64_u64(dividend, divisor);
39 }
40
41 /* the result of s64/s64. */
osal_div64_s64(long long dividend,long long divisor)42 long long osal_div64_s64(long long dividend, long long divisor)
43 {
44 return div64_s64(dividend, divisor);
45 }
46
47 /* the remainder of u64/u32. */
osal_div_u64_rem(unsigned long long dividend,unsigned int divisor)48 unsigned long long osal_div_u64_rem(unsigned long long dividend, unsigned int divisor)
49 {
50 unsigned int remainder = 0;
51
52 div_u64_rem(dividend, divisor, &remainder);
53
54 return remainder;
55 }
56
57 /* the remainder of s64/s32. */
osal_div_s64_rem(long long dividend,int divisor)58 long long osal_div_s64_rem(long long dividend, int divisor)
59 {
60 int remainder = 0;
61
62 div_s64_rem(dividend, divisor, &remainder);
63
64 return remainder;
65 }
66
67 /* the remainder of u64/u64. */
osal_div64_u64_rem(unsigned long long dividend,unsigned long long divisor)68 unsigned long long osal_div64_u64_rem(unsigned long long dividend, unsigned long long divisor)
69 {
70 unsigned long long remainder = 0;
71
72 div64_u64_rem(dividend, divisor, &remainder);
73 return remainder;
74 }
75
osal_get_random_int(void)76 unsigned int osal_get_random_int(void)
77 {
78 return (unsigned int)random();
79 }
80