1 /* 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 35 #define _1MB_ (1024ULL * 1024ULL) 36 #define _1GB_ (_1MB_ * 1024ULL) 37 #define _2GB_ (2 * _1GB_) 38 39 #endif /* MVEBU_H */ 40