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 12 #define has_bit(nr, mask) (BIT(nr) & (mask)) 13 #define has_bits(bits, mask) (((bits) & (mask)) == (bits)) 14 15 #define dp_for_each_set_bit(bit, mask) \ 16 for_each_set_bit((bit), ((unsigned long *)&(mask)), sizeof(mask) * 8) 17 18 #define dp_wait_cond(__cond, __tries, __min_range, __max_range) \ 19 ({ \ 20 int num_tries = __tries; \ 21 while (!__cond && (num_tries > 0)) { \ 22 usleep_range(__min_range, __max_range); \ 23 if (__cond) \ 24 break; \ 25 num_tries--; \ 26 } \ 27 num_tries; \ 28 }) 29 30 /* the restriction of range is [start, end] */ 31 struct malidp_range { 32 u32 start; 33 u32 end; 34 }; 35 36 static inline void set_range(struct malidp_range *rg, u32 start, u32 end) 37 { 38 rg->start = start; 39 rg->end = end; 40 } 41 42 static inline bool in_range(struct malidp_range *rg, u32 v) 43 { 44 return (v >= rg->start) && (v <= rg->end); 45 } 46 47 #endif /* _MALIDP_UTILS_ */ 48