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_for_each_set_bit(bit, mask) \
17	for_each_set_bit((bit), ((unsigned long *)&(mask)), sizeof(mask) * 8)
18
19#define dp_wait_cond(__cond, __tries, __min_range, __max_range)	\
20({							\
21	int num_tries = __tries;			\
22	while (!__cond && (num_tries > 0)) {		\
23		usleep_range(__min_range, __max_range);	\
24		num_tries--;				\
25	}						\
26	(__cond) ? 0 : -ETIMEDOUT;			\
27})
28
29/* the restriction of range is [start, end] */
30struct malidp_range {
31	u32 start;
32	u32 end;
33};
34
35static inline void set_range(struct malidp_range *rg, u32 start, u32 end)
36{
37	rg->start = start;
38	rg->end   = end;
39}
40
41static inline bool in_range(struct malidp_range *rg, u32 v)
42{
43	return (v >= rg->start) && (v <= rg->end);
44}
45
46#endif /* _MALIDP_UTILS_ */