Files
SDK_SG200x_V2/opensbi/lib/sbi/sbi_math.c
carbon 0545e9dc6d init version 2024-05-07
commit d1edce71135cc6d98c0a4b5729774542b676e769
Author: sophgo-forum-service <forum_service@sophgo.com>
Date:   Fri Mar 15 16:07:33 2024 +0800

    [fix] recommend using ssh method to clone repo.
    [fix] fix sensor driver repo branch name.
2024-05-07 19:36:36 +08:00

24 lines
397 B
C

/*
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2020 Western Digital Corporation or its affiliates.
*
* Common helper functions used across OpenSBI project.
*
* Authors:
* Atish Patra <atish.patra@wdc.com>
*/
unsigned long log2roundup(unsigned long x)
{
unsigned long ret = 0;
while (ret < __riscv_xlen) {
if (x <= (1UL << ret))
break;
ret++;
}
return ret;
}