forked from mirrors/linux
9ad3f2c7c6
Prepare for 32bit pci root bus
-v2: hpa said we should compare with (resource_size_t)~0
-v3: according to Linus to use MAX_RESOURCE instead.
also need need to put related patches together
-v4: according to Andrew, use min in cap_resource()
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
LKML-Reference: <1265793639-15071-8-git-send-email-yinghai@kernel.org>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
30 lines
612 B
C
30 lines
612 B
C
#ifndef _LINUX_RANGE_H
|
|
#define _LINUX_RANGE_H
|
|
|
|
struct range {
|
|
u64 start;
|
|
u64 end;
|
|
};
|
|
|
|
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
|