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/* 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;
}
/* True if r1 completely contains r2 */
static inline bool range_contains(const struct range *r1,
const struct range *r2)
{
return r1->start <= r2->start && r1->end >= r2->end;
}
/* True if any part of r1 overlaps r2 */
static inline bool range_overlaps(const struct range *r1,
const struct range *r2)
{
return r1->start <= r2->end && r1->end >= r2->start;
}
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 DEFINE_RANGE(_start, _end) \
(struct range) { \
.start = (_start), \
.end = (_end), \
}
#endif
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