54 lines
1.2 KiB
C
54 lines
1.2 KiB
C
/*
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* Copyright (c) 2021-2022 Amlogic, Inc. All rights reserved.
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*
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* SPDX-License-Identifier: MIT
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*/
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#ifndef _RISCV_BITS_H
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#define _RISCV_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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#if __riscv_xlen == 64
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#define SLL32 sllw
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#define STORE sd
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#define LOAD ld
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#define LWU lwu
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#define LOG_REGBYTES 3
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#else
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#define SLL32 sll
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#define STORE sw
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#define LOAD lw
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#define LWU lw
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#define LOG_REGBYTES 2
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#endif
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#define REGBYTES (1 << LOG_REGBYTES)
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#if __riscv_flen == 64
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#define FPSTORE fsd
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#define FPLOAD fld
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#define LOG_FPREGBYTES 3
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#else
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#define FPSTORE fsw
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#define FPLOAD flw
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#define LOG_FPREGBYTES 2
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#endif
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#define FPREGBYTES (1 << LOG_FPREGBYTES)
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#endif
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