93f81bd490
repo: https://github.com/T-head-Semi/opensbi commit: 89182b257c8798e15e4c685c1af0c2862d528d2a Change-Id: I7b39d66729e0108661a6f4c9e28acbdb303684ea
24 lines
397 B
C
24 lines
397 B
C
/*
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2020 Western Digital Corporation or its affiliates.
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*
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* Common helper functions used across OpenSBI project.
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*
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* Authors:
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* Atish Patra <atish.patra@wdc.com>
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*/
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unsigned long log2roundup(unsigned long x)
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{
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unsigned long ret = 0;
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while (ret < __riscv_xlen) {
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if (x <= (1UL << ret))
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break;
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ret++;
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}
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return ret;
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}
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