1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3 * (C) COPYRIGHT 2018 ARM Limited. All rights reserved.
4 * Author: James.Qian.Wang <james.qian.wang@arm.com>
5 *
6 */
7 #ifndef _MALIDP_UTILS_
8 #define _MALIDP_UTILS_
9
10 #include <linux/delay.h>
11 #include <linux/errno.h>
12
13 #define has_bit(nr, mask) (BIT(nr) & (mask))
14 #define has_bits(bits, mask) (((bits) & (mask)) == (bits))
15
16 #define dp_wait_cond(__cond, __tries, __min_range, __max_range) \
17 ({ \
18 int num_tries = __tries; \
19 while (!__cond && (num_tries > 0)) { \
20 usleep_range(__min_range, __max_range); \
21 num_tries--; \
22 } \
23 (__cond) ? 0 : -ETIMEDOUT; \
24 })
25
26 /* the restriction of range is [start, end] */
27 struct malidp_range {
28 u32 start;
29 u32 end;
30 };
31
set_range(struct malidp_range * rg,u32 start,u32 end)32 static inline void set_range(struct malidp_range *rg, u32 start, u32 end)
33 {
34 rg->start = start;
35 rg->end = end;
36 }
37
in_range(struct malidp_range * rg,u32 v)38 static inline bool in_range(struct malidp_range *rg, u32 v)
39 {
40 return (v >= rg->start) && (v <= rg->end);
41 }
42
43 #endif /* _MALIDP_UTILS_ */
44