gem5 v24.0.0.0
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utils.hh
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1/*
2 * Copyright (c) 2017-2018 ARM Limited
3 * All rights reserved
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software
9 * licensed hereunder. You may use the software subject to the license
10 * terms below provided that you ensure that this notice is replicated
11 * unmodified and in its entirety in all distributions of the software,
12 * modified or unmodified, in source code or in binary form.
13 *
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions are
16 * met: redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer;
18 * redistributions in binary form must reproduce the above copyright
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20 * documentation and/or other materials provided with the distribution;
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23 * this software without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
26 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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36 */
37
38#ifndef __CPU_UTILS_HH__
39#define __CPU_UTILS_HH__
40
41#include "base/types.hh"
42
43namespace gem5
44{
45
52inline Addr
54{
55 return addr & (block_size - 1);
56}
57
65inline Addr
67{
68 return addr & ~(block_size - 1);
69}
70
79inline bool
80transferNeedsBurst(Addr addr, unsigned int size, unsigned int block_size)
81{
82 return (addrBlockOffset(addr, block_size) + size) > block_size;
83}
84
88inline bool
91{
92 auto it_tmp = it_start;
93 for (;it_tmp != it_end && !(*it_tmp); ++it_tmp);
94 return (it_tmp != it_end);
95}
96
97} // namespace gem5
98
99#endif // __CPU_UTILS_HH__
Defines global host-dependent types: Counter, Tick, and (indirectly) {int,uint}{8,...
STL vector class.
Definition stl.hh:37
Bitfield< 3 > addr
Definition types.hh:84
Copyright (c) 2024 - Pranith Kumar Copyright (c) 2020 Inria All rights reserved.
Definition binary32.hh:36
uint64_t Addr
Address type This will probably be moved somewhere else in the near future.
Definition types.hh:147
Addr addrBlockOffset(Addr addr, Addr block_size)
Calculates the offset of a given address wrt aligned fixed-size blocks.
Definition utils.hh:53
bool transferNeedsBurst(Addr addr, unsigned int size, unsigned int block_size)
Returns true if the given memory access (address, size) needs to be fragmented across aligned fixed-s...
Definition utils.hh:80
bool isAnyActiveElement(const std::vector< bool >::const_iterator &it_start, const std::vector< bool >::const_iterator &it_end)
Test if there is any active element in an enablement range.
Definition utils.hh:89
Addr addrBlockAlign(Addr addr, Addr block_size)
Returns the address of the closest aligned fixed-size block to the given address.
Definition utils.hh:66

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