33 lines
870 B
C
33 lines
870 B
C
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/*
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2019 Western Digital Corporation or its affiliates.
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*
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* Authors:
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* Anup Patel <anup.patel@wdc.com>
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*/
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#ifndef __SBI_BITS_H__
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#define __SBI_BITS_H__
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#define likely(x) __builtin_expect((x), 1)
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#define unlikely(x) __builtin_expect((x), 0)
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#define ROUNDUP(a, b) ((((a)-1) / (b) + 1) * (b))
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#define ROUNDDOWN(a, b) ((a) / (b) * (b))
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#define MAX(a, b) ((a) > (b) ? (a) : (b))
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#define MIN(a, b) ((a) < (b) ? (a) : (b))
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#define CLAMP(a, lo, hi) MIN(MAX(a, lo), hi)
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#define EXTRACT_FIELD(val, which) (((val) & (which)) / ((which) & ~((which)-1)))
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#define INSERT_FIELD(val, which, fieldval) \
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(((val) & ~(which)) | ((fieldval) * ((which) & ~((which)-1))))
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#define STR(x) XSTR(x)
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#define XSTR(x) #x
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#define BIT_MASK(nr) (1UL << ((nr) % BITS_PER_LONG))
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#define BIT_WORD(nr) ((nr) / BITS_PER_LONG)
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#endif
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