mirror of
https://github.com/riscv-software-src/opensbi.git
synced 2025-08-24 23:41:23 +01:00
44
include/sbi/sbi_bits.h
Normal file
44
include/sbi/sbi_bits.h
Normal file
@@ -0,0 +1,44 @@
|
||||
/*
|
||||
* Copyright (c) 2018 Western Digital Corporation or its affiliates.
|
||||
*
|
||||
* Authors:
|
||||
* Anup Patel <anup.patel@wdc.com>
|
||||
*
|
||||
* SPDX-License-Identifier: BSD-2-Clause
|
||||
*/
|
||||
|
||||
#ifndef __SBI_BITS_H__
|
||||
#define __SBI_BITS_H__
|
||||
|
||||
#define likely(x) __builtin_expect((x), 1)
|
||||
#define unlikely(x) __builtin_expect((x), 0)
|
||||
|
||||
#define ROUNDUP(a, b) ((((a)-1)/(b)+1)*(b))
|
||||
#define ROUNDDOWN(a, b) ((a)/(b)*(b))
|
||||
|
||||
#define MAX(a, b) ((a) > (b) ? (a) : (b))
|
||||
#define MIN(a, b) ((a) < (b) ? (a) : (b))
|
||||
#define CLAMP(a, lo, hi) MIN(MAX(a, lo), hi)
|
||||
|
||||
#define EXTRACT_FIELD(val, which) (((val) & (which)) / ((which) & ~((which)-1)))
|
||||
#define INSERT_FIELD(val, which, fieldval) (((val) & ~(which)) | ((fieldval) * ((which) & ~((which)-1))))
|
||||
|
||||
#define STR(x) XSTR(x)
|
||||
#define XSTR(x) #x
|
||||
|
||||
#if __riscv_xlen == 64
|
||||
#define SLL32 sllw
|
||||
#define STORE sd
|
||||
#define LOAD ld
|
||||
#define LWU lwu
|
||||
#define LOG_REGBYTES 3
|
||||
#else
|
||||
#define SLL32 sll
|
||||
#define STORE sw
|
||||
#define LOAD lw
|
||||
#define LWU lw
|
||||
#define LOG_REGBYTES 2
|
||||
#endif
|
||||
#define REGBYTES (1 << LOG_REGBYTES)
|
||||
|
||||
#endif
|
Reference in New Issue
Block a user