gem5  [DEVELOP-FOR-23.0]
All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Modules Pages
bulk_bloom_filter.hh
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2019 Inria
3  * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions are
8  * met: redistributions of source code must retain the above copyright
9  * notice, this list of conditions and the following disclaimer;
10  * redistributions in binary form must reproduce the above copyright
11  * notice, this list of conditions and the following disclaimer in the
12  * documentation and/or other materials provided with the distribution;
13  * neither the name of the copyright holders nor the names of its
14  * contributors may be used to endorse or promote products derived from
15  * this software without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28  */
29 
30 #ifndef __BASE_FILTERS_BULK_BLOOM_FILTER_HH__
31 #define __BASE_FILTERS_BULK_BLOOM_FILTER_HH__
32 
34 
35 namespace gem5
36 {
37 
38 struct BloomFilterBulkParams;
39 
40 namespace bloom_filter
41 {
42 
48 class Bulk : public MultiBitSel
49 {
50  public:
51  Bulk(const BloomFilterBulkParams &p);
52  ~Bulk();
53 
54  protected:
55  int hash(Addr addr, int hash_number) const override;
56 
57  private:
59  Addr permute(Addr addr) const;
60 
67  const int sectorBits;
68 };
69 
70 } // namespace bloom_filter
71 } // namespace gem5
72 
73 #endif // __BASE_FILTERS_BULK_BLOOM_FILTER_HH__
gem5::bloom_filter::Bulk
Implementation of the bloom filter, as described in "Bulk Disambiguation of Speculative Threads in Mu...
Definition: bulk_bloom_filter.hh:48
gem5::bloom_filter::Bulk::sectorBits
const int sectorBits
Number of bits used per sector.
Definition: bulk_bloom_filter.hh:67
gem5::bloom_filter::Bulk::Bulk
Bulk(const BloomFilterBulkParams &p)
Definition: bulk_bloom_filter.cc:44
gem5::VegaISA::p
Bitfield< 54 > p
Definition: pagetable.hh:70
multi_bit_sel_bloom_filter.hh
gem5::bloom_filter::MultiBitSel
The MultiBitSel Bloom Filter associates an address to multiple entries through the use of multiple ha...
Definition: multi_bit_sel_bloom_filter.hh:47
gem5::Addr
uint64_t Addr
Address type This will probably be moved somewhere else in the near future.
Definition: types.hh:147
gem5::bloom_filter::Bulk::~Bulk
~Bulk()
Definition: bulk_bloom_filter.cc:52
gem5::bloom_filter::Bulk::permute
Addr permute(Addr addr) const
Permutes the address to generate its signature.
Definition: bulk_bloom_filter.cc:74
gem5::bloom_filter::Bulk::hash
int hash(Addr addr, int hash_number) const override
Apply the selected the hash functions to an address.
Definition: bulk_bloom_filter.cc:57
gem5
Reference material can be found at the JEDEC website: UFS standard http://www.jedec....
Definition: gpu_translation_state.hh:37
gem5::X86ISA::addr
Bitfield< 3 > addr
Definition: types.hh:84

Generated on Sun Jul 30 2023 01:56:51 for gem5 by doxygen 1.8.17