1*91f16700Schasinglulu /* 2*91f16700Schasinglulu * Copyright (C) 2018 Marvell International Ltd. 3*91f16700Schasinglulu * 4*91f16700Schasinglulu * SPDX-License-Identifier: BSD-3-Clause 5*91f16700Schasinglulu * https://spdx.org/licenses 6*91f16700Schasinglulu */ 7*91f16700Schasinglulu 8*91f16700Schasinglulu #ifndef MVEBU_H 9*91f16700Schasinglulu #define MVEBU_H 10*91f16700Schasinglulu 11*91f16700Schasinglulu /* Use this functions only when printf is allowed */ 12*91f16700Schasinglulu #define debug_enter() VERBOSE("----> Enter %s\n", __func__) 13*91f16700Schasinglulu #define debug_exit() VERBOSE("<---- Exit %s\n", __func__) 14*91f16700Schasinglulu 15*91f16700Schasinglulu /* Macro for testing alignment. Positive if number is NOT aligned */ 16*91f16700Schasinglulu #define IS_NOT_ALIGN(number, align) ((number) & ((align) - 1)) 17*91f16700Schasinglulu 18*91f16700Schasinglulu /* Macro for alignment up. For example, ALIGN_UP(0x0330, 0x20) = 0x0340 */ 19*91f16700Schasinglulu #define ALIGN_UP(number, align) (((number) & ((align) - 1)) ? \ 20*91f16700Schasinglulu (((number) + (align)) & ~((align)-1)) : (number)) 21*91f16700Schasinglulu 22*91f16700Schasinglulu /* Macro for testing whether a number is a power of 2. Positive if so */ 23*91f16700Schasinglulu #define IS_POWER_OF_2(number) ((number) != 0 && \ 24*91f16700Schasinglulu (((number) & ((number) - 1)) == 0)) 25*91f16700Schasinglulu 26*91f16700Schasinglulu /* 27*91f16700Schasinglulu * Macro for ronding up to next power of 2 28*91f16700Schasinglulu * it is done by count leading 0 (clz assembly opcode) and see msb set bit. 29*91f16700Schasinglulu * then you can shift it left and get number which power of 2 30*91f16700Schasinglulu * Note: this Macro is for 32 bit number 31*91f16700Schasinglulu */ 32*91f16700Schasinglulu #define ROUND_UP_TO_POW_OF_2(number) (1 << \ 33*91f16700Schasinglulu (32 - __builtin_clz((number) - 1))) 34*91f16700Schasinglulu 35*91f16700Schasinglulu #define _1MB_ (1024ULL * 1024ULL) 36*91f16700Schasinglulu #define _1GB_ (_1MB_ * 1024ULL) 37*91f16700Schasinglulu #define _2GB_ (2 * _1GB_) 38*91f16700Schasinglulu 39*91f16700Schasinglulu #endif /* MVEBU_H */ 40