| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef _LINUX_RANGE_H |
| #define _LINUX_RANGE_H |
| #include <linux/types.h> |
| |
| struct range { |
| u64 start; |
| u64 end; |
| }; |
| |
| static inline u64 range_len(const struct range *range) |
| { |
| return range->end - range->start + 1; |
| } |
| |
| int add_range(struct range *range, int az, int nr_range, |
| u64 start, u64 end); |
| |
| |
| int add_range_with_merge(struct range *range, int az, int nr_range, |
| u64 start, u64 end); |
| |
| void subtract_range(struct range *range, int az, u64 start, u64 end); |
| |
| int clean_sort_range(struct range *range, int az); |
| |
| void sort_range(struct range *range, int nr_range); |
| |
| #define MAX_RESOURCE ((resource_size_t)~0) |
| static inline resource_size_t cap_resource(u64 val) |
| { |
| if (val > MAX_RESOURCE) |
| return MAX_RESOURCE; |
| |
| return val; |
| } |
| #endif |