1/*****************************************************************************
2 * McPAT
3 * SOFTWARE LICENSE AGREEMENT
4 * Copyright 2012 Hewlett-Packard Development Company, L.P.
5 * Copyright (c) 2010-2013 Advanced Micro Devices, Inc.
6 * All Rights Reserved
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are
10 * met: redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer;
12 * redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the

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21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 *
31 ***************************************************************************/
32
33
34#ifndef CORE_H_
35#define CORE_H_
36
37#include "array.h"
38#include "basic_components.h"
39#include "cacheunit.h"
40#include "interconnect.h"
41#include "logic.h"
42#include "parameter.h"
43
44// Macros used in the various core-related classes
45#define NUM_SOURCE_OPERANDS 2
46#define NUM_INT_INST_SOURCE_OPERANDS 2
47
48class BranchPredictorParameters {
49public:
50 int assoc;
51 int nbanks;
52 int local_l1_predictor_size;
53 int local_l2_predictor_size;
54 int local_predictor_entries;
55 int global_predictor_bits;
56 int global_predictor_entries;
57 int chooser_predictor_bits;
58 int chooser_predictor_entries;
59};
60
61class BranchPredictor : public McPATComponent {
62public:
63 ArrayST* globalBPT;
64 ArrayST* localBPT;
65 ArrayST* L1_localBPT;
66 ArrayST* L2_localBPT;
67 ArrayST* chooser;
68 ArrayST* RAS;
69
70 InputParameter interface_ip;
71 CoreParameters core_params;
72 CoreStatistics core_stats;
73 BranchPredictorParameters branch_pred_params;
74 double scktRatio, chip_PR_overhead, macro_PR_overhead;
75 bool exist;
76
77 BranchPredictor(XMLNode* _xml_data, InputParameter* interface_ip_,
78 const CoreParameters & _core_params,
79 const CoreStatistics & _core_stats,
80 bool exsit = true);
81 void set_params_stats();
82 void computeEnergy();
83 void displayData(uint32_t indent = 0, int plevel = 100);
84 ~BranchPredictor();
85};
86
87class InstFetchParameters {
88public:
89 int btb_size;
90 int btb_block_size;
91 int btb_assoc;
92 int btb_num_banks;
93 int btb_latency;
94 int btb_throughput;
95 int btb_rw_ports;
96};
97
98class InstFetchStatistics {
99public:
100 double btb_read_accesses;
101 double btb_write_accesses;
102};
103
104class InstFetchU : public McPATComponent {
105public:
106 CacheUnit* icache;
107 ArrayST* IB;
108 ArrayST* BTB;
109 BranchPredictor* BPT;
110 InstructionDecoder* ID_inst;
111 InstructionDecoder* ID_operand;
112 InstructionDecoder* ID_misc;
113
114 InputParameter interface_ip;
115 CoreParameters core_params;
116 CoreStatistics core_stats;
117 InstFetchParameters inst_fetch_params;
118 InstFetchStatistics inst_fetch_stats;
119 double scktRatio, chip_PR_overhead, macro_PR_overhead;
120 enum Cache_policy cache_p;
121 bool exist;
122
123 InstFetchU(XMLNode* _xml_data, InputParameter* interface_ip_,
124 const CoreParameters & _core_params,
125 const CoreStatistics & _core_stats,
126 bool exsit = true);
127 void set_params_stats();
128 void computeEnergy();
129 void displayData(uint32_t indent = 0, int plevel = 100);
130 ~InstFetchU();
131};
132
133
134class SchedulerU : public McPATComponent {
135public:
136 static int ROB_STATUS_BITS;
137
138 ArrayST* int_inst_window;
139 ArrayST* fp_inst_window;
140 ArrayST* ROB;
141 selection_logic* int_instruction_selection;
142 selection_logic* fp_instruction_selection;
143
144 InputParameter interface_ip;
145 CoreParameters core_params;
146 CoreStatistics core_stats;
147 double scktRatio, chip_PR_overhead, macro_PR_overhead;
148 double Iw_height, fp_Iw_height, ROB_height;
149 bool exist;
150
151 SchedulerU(XMLNode* _xml_data, InputParameter* interface_ip_,
152 const CoreParameters & _core_params,
153 const CoreStatistics & _core_stats,
154 bool exist_ = true);
155 void computeEnergy();
156 void displayData(uint32_t indent = 0, int plevel = 100);
157 ~SchedulerU();
158};
159
160class RENAMINGU : public McPATComponent {
161public:
162 ArrayST* iFRAT;
163 ArrayST* fFRAT;
164 ArrayST* iRRAT;
165 ArrayST* fRRAT;
166 ArrayST* ifreeL;
167 ArrayST* ffreeL;
168 dep_resource_conflict_check* idcl;
169 dep_resource_conflict_check* fdcl;
170 ArrayST* RAHT;
171
172 InputParameter interface_ip;
173 CoreParameters core_params;
174 CoreStatistics core_stats;
175 bool exist;
176
177 RENAMINGU(XMLNode* _xml_data, InputParameter* interface_ip_,
178 const CoreParameters & _core_params,
179 const CoreStatistics & _core_stats,
180 bool exist_ = true);
181 void computeEnergy();
182 void displayData(uint32_t indent = 0, int plevel = 100);
183 ~RENAMINGU();
184};
185
186class LoadStoreU : public McPATComponent {
187public:
188 CacheUnit* dcache;
189 ArrayST* LSQ;
190 ArrayST* LoadQ;
191
192 InputParameter interface_ip;
193 CoreParameters core_params;
194 CoreStatistics core_stats;
195 enum Cache_policy cache_p;
196 double scktRatio, chip_PR_overhead, macro_PR_overhead;
197 double lsq_height;
198 bool exist;
199
200 LoadStoreU(XMLNode* _xml_data, InputParameter* interface_ip_,
201 const CoreParameters & _core_params,
202 const CoreStatistics & _core_stats,
203 bool exist_ = true);
204 void computeEnergy();
205 void displayData(uint32_t indent = 0, int plevel = 100);
206 ~LoadStoreU();
207};
208
209class MemoryManagementParams {
210public:
211 int itlb_number_entries;
212 double itlb_latency;
213 double itlb_throughput;
214 int itlb_assoc;
215 int itlb_nbanks;
216 int dtlb_number_entries;
217 double dtlb_latency;
218 double dtlb_throughput;
219 int dtlb_assoc;
220 int dtlb_nbanks;
221};
222
223class MemoryManagementStats {
224public:
225 double itlb_total_accesses;
226 double itlb_total_misses;
227 double itlb_conflicts;
228 double dtlb_read_accesses;
229 double dtlb_read_misses;
230 double dtlb_write_accesses;
231 double dtlb_write_misses;
232 double dtlb_conflicts;
233};
234
235class MemManU : public McPATComponent {
236public:
237 ArrayST* itlb;
238 ArrayST* dtlb;
239
240 InputParameter interface_ip;
241 CoreParameters core_params;
242 CoreStatistics core_stats;
243 MemoryManagementParams mem_man_params;
244 MemoryManagementStats mem_man_stats;
245 double scktRatio, chip_PR_overhead, macro_PR_overhead;
246 bool exist;
247
248 MemManU(XMLNode* _xml_data, InputParameter* interface_ip_,
249 const CoreParameters & _core_params,
250 const CoreStatistics & _core_stats, bool exist_ = true);
251 void set_params_stats();
252 void computeEnergy();
253 void displayData(uint32_t indent = 0, int plevel = 100);
254 ~MemManU();
255};
256
257class RegFU : public McPATComponent {
258public:
259 static int RFWIN_ACCESS_MULTIPLIER;
260
261 ArrayST* IRF;
262 ArrayST* FRF;
263 ArrayST* RFWIN;
264
265 InputParameter interface_ip;
266 CoreParameters core_params;
267 CoreStatistics core_stats;
268 double scktRatio, chip_PR_overhead, macro_PR_overhead;
269 double int_regfile_height, fp_regfile_height;
270 bool exist;
271
272 RegFU(XMLNode* _xml_data,
273 InputParameter* interface_ip_, const CoreParameters & _core_params,
274 const CoreStatistics & _core_stats,
275 bool exist_ = true);
276 void computeEnergy();
277 void displayData(uint32_t indent = 0, int plevel = 100);
278 ~RegFU();
279};
280
281class EXECU : public McPATComponent {
282public:
283 RegFU* rfu;
284 SchedulerU* scheu;
285 FunctionalUnit* fp_u;
286 FunctionalUnit* exeu;
287 FunctionalUnit* mul;
288 Interconnect* int_bypass;
289 Interconnect* intTagBypass;
290 Interconnect* int_mul_bypass;
291 Interconnect* intTag_mul_Bypass;
292 Interconnect* fp_bypass;
293 Interconnect* fpTagBypass;
294
295 InputParameter interface_ip;
296 double scktRatio, chip_PR_overhead, macro_PR_overhead;
297 double lsq_height;
298 CoreParameters core_params;
299 CoreStatistics core_stats;
300 bool exist;
301
302 EXECU(XMLNode* _xml_data, InputParameter* interface_ip_,
303 double lsq_height_, const CoreParameters & _core_params,
304 const CoreStatistics & _core_stats, bool exist_ = true);
305 void computeEnergy();
306 void displayData(uint32_t indent = 0, int plevel = 100);
307 ~EXECU();
308};
309
310
311class Core : public McPATComponent {
312public:
313 InstFetchU* ifu;
314 LoadStoreU* lsu;
315 MemManU* mmu;
316 EXECU* exu;
317 RENAMINGU* rnu;
318 Pipeline* corepipe;
319 UndiffCore* undiffCore;
320 CacheUnit* l2cache;
321
322 int ithCore;
323 InputParameter interface_ip;
324 double scktRatio, chip_PR_overhead, macro_PR_overhead;
325 CoreParameters core_params;
326 CoreStatistics core_stats;
327
328 // TODO: Migrate component ID handling into the XML data to remove this
329 // ithCore variable
330 Core(XMLNode* _xml_data, int _ithCore, InputParameter* interface_ip_);
331 void initialize_params();
332 void initialize_stats();
333 void set_core_param();
334 void computeEnergy();
335 ~Core();
336};
337
338#endif /* CORE_H_ */