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
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#define _LINUX_RANGE_H
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struct range {
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u64 start;
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u64 end;
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};
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int add_range(struct range *range, int az, int nr_range,
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u64 start, u64 end);
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int add_range_with_merge(struct range *range, int az, int nr_range,
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u64 start, u64 end);
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void subtract_range(struct range *range, int az, u64 start, u64 end);
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int clean_sort_range(struct range *range, int az);
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void sort_range(struct range *range, int nr_range);
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#define MAX_RESOURCE ((resource_size_t)~0)
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static inline resource_size_t cap_resource(u64 val)
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{
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if (val > MAX_RESOURCE)
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return MAX_RESOURCE;
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return val;
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}
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#endif
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