1 | /* |
2 | * Copyright (c) 2015-2017, Intel Corporation |
3 | * |
4 | * Redistribution and use in source and binary forms, with or without |
5 | * modification, are permitted provided that the following conditions are met: |
6 | * |
7 | * * Redistributions of source code must retain the above copyright notice, |
8 | * this list of conditions and the following disclaimer. |
9 | * * Redistributions in binary form must reproduce the above copyright |
10 | * notice, this list of conditions and the following disclaimer in the |
11 | * documentation and/or other materials provided with the distribution. |
12 | * * Neither the name of Intel Corporation nor the names of its contributors |
13 | * may be used to endorse or promote products derived from this software |
14 | * without specific prior written permission. |
15 | * |
16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
20 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
26 | * POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
28 | |
29 | #ifndef FDR_ENGINE_DESCRIPTION_H |
30 | #define FDR_ENGINE_DESCRIPTION_H |
31 | |
32 | #include "engine_description.h" |
33 | |
34 | #include <map> |
35 | #include <memory> |
36 | #include <vector> |
37 | |
38 | namespace ue2 { |
39 | |
40 | struct FDREngineDef { |
41 | u32 id; |
42 | u32 schemeWidth; |
43 | u32 numBuckets; |
44 | u64a cpu_features; |
45 | }; |
46 | |
47 | class FDREngineDescription : public EngineDescription { |
48 | public: |
49 | u32 schemeWidth; |
50 | u32 stride; |
51 | u32 bits; |
52 | |
53 | u32 getSchemeWidth() const { return schemeWidth; } |
54 | u32 getBucketWidth(BucketIndex b) const; |
55 | SchemeBitIndex getSchemeBit(BucketIndex b, PositionInBucket p) const; |
56 | u32 getNumTableEntries() const { return 1 << bits; } |
57 | u32 getTabSizeBytes() const { |
58 | return schemeWidth / 8 * getNumTableEntries(); |
59 | } |
60 | |
61 | explicit FDREngineDescription(const FDREngineDef &def); |
62 | |
63 | u32 getDefaultFloodSuffixLength() const override; |
64 | }; |
65 | |
66 | std::unique_ptr<FDREngineDescription> |
67 | chooseEngine(const target_t &target, const std::vector<hwlmLiteral> &vl, |
68 | bool make_small); |
69 | std::unique_ptr<FDREngineDescription> getFdrDescription(u32 engineID); |
70 | void getFdrDescriptions(std::vector<FDREngineDescription> *out); |
71 | } // namespace ue2 |
72 | |
73 | #endif |
74 | |