40 lines
1.2 KiB
C
40 lines
1.2 KiB
C
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/*
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* Copyright (C) 2018 Marvell International Ltd.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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* https://spdx.org/licenses
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*/
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#ifndef MVEBU_H
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#define MVEBU_H
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/* Use this functions only when printf is allowed */
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#define debug_enter() VERBOSE("----> Enter %s\n", __func__)
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#define debug_exit() VERBOSE("<---- Exit %s\n", __func__)
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/* Macro for testing alignment. Positive if number is NOT aligned */
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#define IS_NOT_ALIGN(number, align) ((number) & ((align) - 1))
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/* Macro for alignment up. For example, ALIGN_UP(0x0330, 0x20) = 0x0340 */
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#define ALIGN_UP(number, align) (((number) & ((align) - 1)) ? \
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(((number) + (align)) & ~((align)-1)) : (number))
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/* Macro for testing whether a number is a power of 2. Positive if so */
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#define IS_POWER_OF_2(number) ((number) != 0 && \
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(((number) & ((number) - 1)) == 0))
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/*
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* Macro for ronding up to next power of 2
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* it is done by count leading 0 (clz assembly opcode) and see msb set bit.
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* then you can shift it left and get number which power of 2
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* Note: this Macro is for 32 bit number
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*/
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#define ROUND_UP_TO_POW_OF_2(number) (1 << \
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(32 - __builtin_clz((number) - 1)))
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#define _1MB_ (1024ULL * 1024ULL)
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#define _1GB_ (_1MB_ * 1024ULL)
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#define _2GB_ (2 * _1GB_)
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#endif /* MVEBU_H */
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