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Konstantin Porotchkinf69ec582018-06-07 18:31:14 +03001/*
2 * Copyright (C) 2018 Marvell International Ltd.
3 *
4 * SPDX-License-Identifier: BSD-3-Clause
5 * https://spdx.org/licenses
6 */
7
8#ifndef _MVEBU_H_
9#define _MVEBU_H_
10
11/* Use this functions only when printf is allowed */
12#define debug_enter() VERBOSE("----> Enter %s\n", __func__)
13#define debug_exit() VERBOSE("<---- Exit %s\n", __func__)
14
15/* Macro for testing alignment. Positive if number is NOT aligned */
16#define IS_NOT_ALIGN(number, align) ((number) & ((align) - 1))
17
18/* Macro for alignment up. For example, ALIGN_UP(0x0330, 0x20) = 0x0340 */
19#define ALIGN_UP(number, align) (((number) & ((align) - 1)) ? \
20 (((number) + (align)) & ~((align)-1)) : (number))
21
22/* Macro for testing whether a number is a power of 2. Positive if so */
23#define IS_POWER_OF_2(number) ((number) != 0 && \
24 (((number) & ((number) - 1)) == 0))
25
26/*
27 * Macro for ronding up to next power of 2
28 * it is done by count leading 0 (clz assembly opcode) and see msb set bit.
29 * then you can shift it left and get number which power of 2
30 * Note: this Macro is for 32 bit number
31 */
32#define ROUND_UP_TO_POW_OF_2(number) (1 << \
33 (32 - __builtin_clz((number) - 1)))
34
Konstantin Porotchkine7be6e22018-10-08 16:53:09 +030035#define _1MB_ (1024ULL * 1024ULL)
36#define _1GB_ (_1MB_ * 1024ULL)
37#define _2GB_ (2 * _1GB_)
Konstantin Porotchkinf69ec582018-06-07 18:31:14 +030038
39#endif /* MVEBU_H */