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vci_cc_vcache_wrapper2_v1.cpp @ 108

Last change on this file since 108 was 108, checked in by gao, 14 years ago
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1	/* -- c++ --
2	* File : vci_cc_vcache_wrapper2_v1.cpp
3	* Copyright (c) UPMC, Lip6, SoC
4	* Authors : Alain GREINER, Yang GAO
5	*
6	* SOCLIB_LGPL_HEADER_BEGIN
7	*
8	* This file is part of SoCLib, GNU LGPLv2.1.
9	*
10	* SoCLib is free software; you can redistribute it and/or modify it
11	* under the terms of the GNU Lesser General Public License as published
12	* by the Free Software Foundation; version 2.1 of the License.
13	*
14	* SoCLib is distributed in the hope that it will be useful, but
15	* WITHOUT ANY WARRANTY; without even the implied warranty of
16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17	* Lesser General Public License for more details.
18	*
19	* You should have received a copy of the GNU Lesser General Public
20	* License along with SoCLib; if not, write to the Free Software
21	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
22	* 02110-1301 USA
23	*
24	* SOCLIB_LGPL_HEADER_END
25	*/
26
27	#include <cassert>
28	#include "arithmetics.h"
29	#include "../include/vci_cc_vcache_wrapper2_v1.h"
30
31	namespace soclib {
32	namespace caba {
33
34	//#define SOCLIB_MODULE_DEBUG
35	//#define EVALUATION_CACHE
36	#ifdef SOCLIB_MODULE_DEBUG
37	namespace {
38	const char *icache_fsm_state_str[] = {
39	"ICACHE_IDLE",
40	"ICACHE_BIS",
41	"ICACHE_TLB1_READ",
42	"ICACHE_TLB1_WRITE",
43	"ICACHE_TLB1_UPDT",
44	"ICACHE_TLB2_READ",
45	"ICACHE_TLB2_WRITE",
46	"ICACHE_TLB2_UPDT",
47	"ICACHE_SW_FLUSH",
48	"ICACHE_TLB_FLUSH",
49	"ICACHE_CACHE_FLUSH",
50	"ICACHE_TLB_INVAL",
51	"ICACHE_CACHE_INVAL",
52	"ICACHE_CACHE_INVAL_PA",
53	"ICACHE_MISS_WAIT",
54	"ICACHE_UNC_WAIT",
55	"ICACHE_MISS_UPDT",
56	"ICACHE_ERROR",
57	"ICACHE_CC_INVAL",
58	"ICACHE_TLB_CC_INVAL",
59	};
60	const char *dcache_fsm_state_str[] = {
61	"DCACHE_IDLE",
62	"DCACHE_BIS",
63	"DCACHE_DTLB1_READ_CACHE",
64	"DCACHE_TLB1_LL_WAIT",
65	"DCACHE_TLB1_SC_WAIT",
66	"DCACHE_TLB1_READ",
67	"DCACHE_TLB1_READ_UPDT",
68	"DCACHE_TLB1_UPDT",
69	"DCACHE_DTLB2_READ_CACHE",
70	"DCACHE_TLB2_LL_WAIT",
71	"DCACHE_TLB2_SC_WAIT",
72	"DCACHE_TLB2_READ",
73	"DCACHE_TLB2_READ_UPDT",
74	"DCACHE_TLB2_UPDT",
75	"DCACHE_CTXT_SWITCH",
76	"DCACHE_ICACHE_FLUSH",
77	"DCACHE_DCACHE_FLUSH",
78	"DCACHE_ITLB_INVAL",
79	"DCACHE_DTLB_INVAL",
80	"DCACHE_ICACHE_INVAL",
81	"DCACHE_DCACHE_INVAL",
82	"DCACHE_ICACHE_INVAL_PA",
83	"DCACHE_DCACHE_INVAL_PA",
84	"DCACHE_DCACHE_SYNC",
85	"DCACHE_LL_DIRTY_WAIT",
86	"DCACHE_SC_DIRTY_WAIT",
87	"DCACHE_WRITE_UPDT",
88	"DCACHE_WRITE_DIRTY",
89	"DCACHE_WRITE_REQ",
90	"DCACHE_MISS_WAIT",
91	"DCACHE_MISS_UPDT",
92	"DCACHE_UNC_WAIT",
93	"DCACHE_ERROR",
94	"DCACHE_ITLB_READ",
95	"DCACHE_ITLB_UPDT",
96	"DCACHE_ITLB_LL_WAIT",
97	"DCACHE_ITLB_SC_WAIT",
98	"DCACHE_CC_CHECK",
99	"DCACHE_CC_INVAL",
100	"DCACHE_CC_UPDT",
101	"DCACHE_CC_NOP",
102	"DCACHE_TLB_CC_INVAL",
103	"DCACHE_ITLB_CLEANUP",
104	};
105	const char *cmd_fsm_state_str[] = {
106	"CMD_IDLE",
107	"CMD_ITLB_READ",
108	"CMD_ITLB_ACC_LL",
109	"CMD_ITLB_ACC_SC",
110	"CMD_INS_MISS",
111	"CMD_INS_UNC",
112	"CMD_DTLB_READ",
113	"CMD_DTLB_ACC_LL",
114	"CMD_DTLB_ACC_SC",
115	"CMD_DTLB_DIRTY_LL",
116	"CMD_DTLB_DIRTY_SC",
117	"CMD_DATA_UNC",
118	"CMD_DATA_MISS",
119	"CMD_DATA_WRITE",
120	"CMD_INS_CLEANUP",
121	"CMD_DATA_CLEANUP",
122	};
123	const char *rsp_fsm_state_str[] = {
124	"RSP_IDLE",
125	"RSP_ITLB_READ",
126	"RSP_ITLB_ACC_LL",
127	"RSP_ITLB_ACC_SC",
128	"RSP_INS_MISS",
129	"RSP_INS_UNC",
130	"RSP_DTLB_READ",
131	"RSP_DTLB_ACC_LL",
132	"RSP_DTLB_ACC_SC",
133	"RSP_DTLB_DIRTY_LL",
134	"RSP_DTLB_DIRTY_SC",
135	"RSP_DATA_MISS",
136	"RSP_DATA_UNC",
137	"RSP_DATA_WRITE",
138	"RSP_INS_CLEANUP",
139	"RSP_DATA_CLEANUP",
140	};
141	const char *tgt_fsm_state_str[] = {
142	"TGT_IDLE",
143	"TGT_UPDT_WORD",
144	"TGT_UPDT_DATA",
145	"TGT_REQ_BROADCAST",
146	"TGT_REQ_ICACHE",
147	"TGT_REQ_DCACHE",
148	"TGT_RSP_BROADCAST",
149	"TGT_RSP_ICACHE",
150	"TGT_RSP_DCACHE",
151	};
152	const char *inval_itlb_fsm_state_str[] = {
153	"INVAL_ITLB_IDLE",
154	"INVAL_ITLB_CHECK" ,
155	"INVAL_ITLB_INVAL",
156	"INVAL_ITLB_CLEAR",
157	};
158	const char *inval_dtlb_fsm_state_str[] = {
159	"INVAL_DTLB_IDLE",
160	"INVAL_DTLB_CHECK",
161	"INVAL_DTLB_INVAL",
162	"INVAL_DTLB_CLEAR",
163	};
164	}
165	#endif
166
167	#define tmpl(...) template<typename vci_param, typename iss_t> __VA_ARGS__ VciCcVCacheWrapper2V1<vci_param, iss_t>
168
169	using soclib::common::uint32_log2;
170
171	/***********************************************/
172	tmpl(/**/)::VciCcVCacheWrapper2V1(
173	sc_module_name name,
174	int proc_id,
175	const soclib::common::MappingTable &mtp,
176	const soclib::common::MappingTable &mtc,
177	const soclib::common::IntTab &initiator_index_rw,
178	const soclib::common::IntTab &initiator_index_c,
179	const soclib::common::IntTab &target_index,
180	size_t itlb_ways,
181	size_t itlb_sets,
182	size_t dtlb_ways,
183	size_t dtlb_sets,
184	size_t icache_ways,
185	size_t icache_sets,
186	size_t icache_words,
187	size_t dcache_ways,
188	size_t dcache_sets,
189	size_t dcache_words,
190	size_t write_buf_size )
191	/***********************************************/
192	: soclib::caba::BaseModule(name),
193
194	p_clk("clk"),
195	p_resetn("resetn"),
196	p_vci_ini_rw("vci_ini_rw"),
197	p_vci_ini_c("vci_ini_c"),
198	p_vci_tgt("vci_tgt"),
199
200	m_cacheability_table(mtp.getCacheabilityTable()),
201	m_segment(mtc.getSegment(target_index)),
202	m_iss(this->name(), proc_id),
203	m_srcid_rw(mtp.indexForId(initiator_index_rw)),
204	m_srcid_c(mtp.indexForId(initiator_index_c)),
205
206	m_itlb_ways(itlb_ways),
207	m_itlb_sets(itlb_sets),
208
209	m_dtlb_ways(dtlb_ways),
210	m_dtlb_sets(dtlb_sets),
211
212	m_icache_ways(icache_ways),
213	m_icache_sets(icache_sets),
214	m_icache_yzmask((~0)<<(uint32_log2(icache_words) + 2)),
215	m_icache_words(icache_words),
216
217	m_dcache_ways(dcache_ways),
218	m_dcache_sets(dcache_sets),
219	m_dcache_yzmask((~0)<<(uint32_log2(dcache_words) + 2)),
220	m_dcache_words(dcache_words),
221
222	m_write_buf_size(write_buf_size),
223	m_paddr_nbits(vci_param::N),
224
225	icache_tlb(itlb_ways,itlb_sets,vci_param::N),
226	dcache_tlb(dtlb_ways,dtlb_sets,vci_param::N),
227
228	r_dcache_fsm("r_dcache_fsm"),
229	r_dcache_paddr_save("r_dcache_paddr_save"),
230	r_dcache_wdata_save("r_dcache_wdata_save"),
231	r_dcache_rdata_save("r_dcache_rdata_save"),
232	r_dcache_type_save("r_dcache_type_save"),
233	r_dcache_be_save("r_dcache_be_save"),
234	r_dcache_cached_save("r_dcache_cached_save"),
235	r_dcache_tlb_paddr("r_dcache_tlb_paddr"),
236	r_dcache_miss_req("r_dcache_miss_req"),
237	r_dcache_unc_req("r_dcache_unc_req"),
238	r_dcache_write_req("r_dcache_write_req"),
239	r_dcache_tlb_read_req("r_dcache_tlb_read_req"),
240
241	r_dcache_tlb_ll_acc_req("r_dcache_tlb_ll_acc_req"),
242	r_dcache_tlb_sc_acc_req("r_dcache_tlb_sc_acc_req"),
243	r_dcache_tlb_ll_dirty_req("r_dcache_tlb_ll_dirty_req"),
244	r_dcache_tlb_sc_dirty_req("r_dcache_tlb_sc_dirty_req"),
245	r_dcache_tlb_ptba_read("r_dcache_tlb_ptba_read"),
246	r_dcache_xtn_req("r_dcache_xtn_req"),
247
248	r_dcache_fsm_save("r_dcache_fsm_save"),
249	r_dcache_cleanup_req("r_dcache_cleanup_req"),
250	r_dcache_inval_rsp("r_dcache_inval_rsp"),
251
252	r_icache_fsm("r_icache_fsm"),
253	r_icache_paddr_save("r_icache_paddr_save"),
254	r_icache_miss_req("r_icache_miss_req"),
255	r_icache_unc_req("r_icache_unc_req"),
256	r_dcache_itlb_read_req("r_dcache_itlb_read_req"),
257	r_dcache_itlb_ll_acc_req("r_dcache_itlb_ll_acc_req"),
258	r_dcache_itlb_sc_acc_req("r_dcache_itlb_sc_acc_req"),
259
260	r_itlb_read_dcache_req("r_itlb_read_dcache_req"),
261	r_itlb_k_read_dcache("r_itlb_k_read_dcache"),
262	r_itlb_acc_dcache_req("r_itlb_acc_dcache_req"),
263	r_dcache_rsp_itlb_error("r_dcache_rsp_itlb_error"),
264
265	r_icache_fsm_save("r_icache_fsm_save"),
266	r_icache_cleanup_req("r_icache_cleanup_req"),
267	r_icache_inval_rsp("r_icache_inval_rsp"),
268
269	r_vci_cmd_fsm("r_vci_cmd_fsm"),
270	r_vci_cmd_min("r_vci_cmd_min"),
271	r_vci_cmd_max("r_vci_cmd_max"),
272	r_vci_cmd_cpt("r_vci_cmd_cpt"),
273
274	r_vci_rsp_fsm("r_vci_rsp_fsm"),
275	r_vci_rsp_cpt("r_vci_rsp_cpt"),
276	r_vci_rsp_ins_error("r_vci_rsp_ins_error"),
277	r_vci_rsp_data_error("r_vci_rsp_data_error"),
278	r_dcache_tlb_sc_fail("r_dcache_tlb_sc_fail"),
279
280	r_vci_tgt_fsm("r_vci_tgt_fsm"),
281	r_tgt_addr("r_tgt_addr"),
282	r_tgt_word("r_tgt_word"),
283	r_tgt_update("r_tgt_update"),
284	r_tgt_srcid("r_tgt_srcid"),
285	r_tgt_pktid("r_tgt_pktid"),
286	r_tgt_trdid("r_tgt_trdid"),
287	r_tgt_icache_req("r_tgt_icache_req"),
288	r_tgt_dcache_req("r_tgt_dcache_req"),
289
290	r_inval_itlb_fsm("r_inval_itlb_fsm"),
291	r_dcache_itlb_inval_req("r_dcache_itlb_inval_req"),
292	r_dcache_itlb_inval_line("r_dcache_itlb_inval_line"),
293	r_itlb_cc_check_end("r_itlb_cc_check_end"),
294	r_ccinval_itlb_way("r_ccinval_itlb_way"),
295	r_ccinval_itlb_set("r_ccinval_itlb_set"),
296	r_icache_inval_tlb_rsp("r_icache_inval_tlb_rsp"),
297	r_icache_tlb_nline("r_icache_tlb_nline"),
298
299	r_inval_dtlb_fsm("r_inval_dtlb_fsm"),
300	r_dcache_dtlb_inval_req("r_dcache_dtlb_inval_req"),
301	r_dcache_dtlb_inval_line("r_dcache_dtlb_inval_line"),
302	r_dtlb_cc_check_end("r_dtlb_cc_check_end"),
303	r_ccinval_dtlb_way("r_ccinval_dtlb_way"),
304	r_ccinval_dtlb_set("r_ccinval_dtlb_set"),
305	r_dcache_inval_tlb_rsp("r_dcache_inval_tlb_rsp"),
306	r_dcache_tlb_nline("r_dcache_tlb_nline"),
307
308	r_dcache_itlb_cleanup_req("r_dcache_itlb_cleanup_req"),
309	r_dcache_itlb_cleanup_line("r_dcache_itlb_cleanup_line"),
310
311	r_dcache_dtlb_cleanup_req("r_dcache_dtlb_cleanup_req"),
312	r_dcache_dtlb_cleanup_line("r_dcache_dtlb_cleanup_line"),
313
314	r_wbuf("wbuf", write_buf_size ),
315	r_icache("icache", icache_ways, icache_sets, icache_words),
316	r_dcache("dcache", dcache_ways, dcache_sets, dcache_words)
317	{
318	r_icache_miss_buf = new data_t[icache_words];
319	r_dcache_miss_buf = new data_t[dcache_words];
320	r_tgt_buf = new data_t[dcache_words];
321	r_tgt_val = new bool[dcache_words];
322	r_dcache_in_itlb = new bool[dcache_ways*dcache_sets];
323	r_dcache_in_dtlb = new bool[dcache_ways*dcache_sets];
324
325	SC_METHOD(transition);
326	dont_initialize();
327	sensitive << p_clk.pos();
328
329	SC_METHOD(genMoore);
330	dont_initialize();
331	sensitive << p_clk.neg();
332
333	typename iss_t::CacheInfo cache_info;
334	cache_info.has_mmu = true;
335	cache_info.icache_line_size = icache_words*sizeof(data_t);
336	cache_info.icache_assoc = icache_ways;
337	cache_info.icache_n_lines = icache_sets;
338	cache_info.dcache_line_size = dcache_words*sizeof(data_t);
339	cache_info.dcache_assoc = dcache_ways;
340	cache_info.dcache_n_lines = dcache_sets;
341	m_iss.setCacheInfo(cache_info);
342	}
343
344	/////////////////////////////////////
345	tmpl(/**/)::~VciCcVCacheWrapper2V1()
346	/////////////////////////////////////
347	{
348	delete [] r_icache_miss_buf;
349	delete [] r_dcache_miss_buf;
350	delete [] r_tgt_val;
351	delete [] r_tgt_buf;
352	delete [] r_dcache_in_itlb;
353	delete [] r_dcache_in_dtlb;
354	}
355
356	////////////////////////
357	tmpl(void)::print_cpi()
358	////////////////////////
359	{
360	std::cout << name() << " CPI = "
361	<< (float)m_cpt_total_cycles/(m_cpt_total_cycles - m_cpt_frz_cycles) << std::endl ;
362	}
363
364	////////////////////////
365	tmpl(void)::print_stats()
366	////////////////////////
367	{
368	float run_cycles = (float)(m_cpt_total_cycles - m_cpt_frz_cycles);
369	std::cout << name() << std::endl
370	<< "- CPI = " << (float)m_cpt_total_cycles/run_cycles << std::endl
371	<< "- READ RATE = " << (float)m_cpt_read/run_cycles << std::endl
372	<< "- WRITE RATE = " << (float)m_cpt_write/run_cycles << std::endl
373	<< "- IMISS_RATE = " << (float)m_cpt_ins_miss/m_cpt_ins_read << std::endl
374	<< "- DMISS RATE = " << (float)m_cpt_data_miss/(m_cpt_read-m_cpt_unc_read) << std::endl
375	<< "- INS MISS COST = " << (float)m_cost_ins_miss_frz/m_cpt_ins_miss << std::endl
376	<< "- DATA MISS COST = " << (float)m_cost_data_miss_frz/m_cpt_data_miss << std::endl
377	<< "- WRITE COST = " << (float)m_cost_write_frz/m_cpt_write << std::endl
378	<< "- UNC COST = " << (float)m_cost_unc_read_frz/m_cpt_unc_read << std::endl
379	<< "- UNCACHED READ RATE = " << (float)m_cpt_unc_read/m_cpt_read << std::endl
380	<< "- CACHED WRITE RATE = " << (float)m_cpt_write_cached/m_cpt_write << std::endl
381	<< "- INS TLB MISS RATE = " << (float)m_cpt_ins_tlb_miss/m_cpt_ins_tlb_read << std::endl
382	<< "- DATA TLB MISS RATE = " << (float)m_cpt_data_tlb_miss/m_cpt_data_tlb_read << std::endl
383	<< "- ITLB MISS COST = " << (float)m_cost_ins_tlb_miss_frz/m_cpt_ins_tlb_miss << std::endl
384	<< "- DTLB MISS COST = " << (float)m_cost_data_tlb_miss_frz/m_cpt_data_tlb_miss << std::endl
385	<< "- ITLB UPDATE ACC COST = " << (float)m_cost_ins_tlb_update_acc_frz/m_cpt_ins_tlb_update_acc << std::endl
386	<< "- DTLB UPDATE ACC COST = " << (float)m_cost_data_tlb_update_acc_frz/m_cpt_data_tlb_update_acc << std::endl
387	<< "- DTLB UPDATE DIRTY COST = " << (float)m_cost_data_tlb_update_dirty_frz/m_cpt_data_tlb_update_dirty << std::endl
388	<< "- ITLB HIT IN DCACHE RATE= " << (float)m_cpt_ins_tlb_hit_dcache/m_cpt_ins_tlb_miss << std::endl
389	<< "- DTLB HIT IN DCACHE RATE= " << (float)m_cpt_data_tlb_hit_dcache/m_cpt_data_tlb_miss << std::endl
390	<< "- DCACHE FROZEN BY TLB OP= " << (float)(m_cost_ins_tlb_occup_cache_frz+m_cost_data_tlb_occup_cache_frz)/m_cpt_dcache_frz_cycles << std::endl
391	<< "- DCACHE FOR TLB % = " << (float)m_cpt_tlb_occup_dcache/(m_dcache_ways*m_dcache_sets) << std::endl
392	<< "- NB CC BROADCAST = " << m_cpt_cc_broadcast << std::endl
393	<< "- NB CC UPDATE DATA = " << m_cpt_cc_update_data << std::endl
394	<< "- NB CC INVAL DATA = " << m_cpt_cc_inval_data << std::endl
395	<< "- NB CC INVAL INS = " << m_cpt_cc_inval_ins << std::endl
396	<< "- NB CC CLEANUP DATA = " << m_cpt_cc_cleanup_data << std::endl
397	<< "- NB CC CLEANUP INS = " << m_cpt_cc_cleanup_ins << std::endl
398	<< "- IMISS TRANSACTION = " << (float)m_cost_imiss_transaction/m_cpt_imiss_transaction << std::endl
399	<< "- DMISS TRANSACTION = " << (float)m_cost_dmiss_transaction/m_cpt_dmiss_transaction << std::endl
400	<< "- UNC TRANSACTION = " << (float)m_cost_unc_transaction/m_cpt_unc_transaction << std::endl
401	<< "- WRITE TRANSACTION = " << (float)m_cost_write_transaction/m_cpt_write_transaction << std::endl
402	<< "- WRITE LENGTH = " << (float)m_length_write_transaction/m_cpt_write_transaction << std::endl
403	<< "- ITLB MISS TRANSACTION = " << (float)m_cost_itlbmiss_transaction/m_cpt_itlbmiss_transaction << std::endl
404	<< "- DTLB MISS TRANSACTION = " << (float)m_cost_dtlbmiss_transaction/m_cpt_dtlbmiss_transaction << std::endl;
405	}
406
407	/*************************************************/
408	tmpl(void)::transition()
409	/*************************************************/
410	{
411	if ( ! p_resetn.read() )
412	{
413	m_iss.reset();
414
415	r_dcache_fsm = DCACHE_IDLE;
416	r_icache_fsm = ICACHE_IDLE;
417	r_vci_cmd_fsm = CMD_IDLE;
418	r_vci_rsp_fsm = RSP_IDLE;
419	r_vci_tgt_fsm = TGT_IDLE;
420	r_inval_itlb_fsm = INVAL_ITLB_IDLE;
421	r_inval_dtlb_fsm = INVAL_DTLB_IDLE;
422
423	// write buffer & caches
424	r_wbuf.reset();
425	r_icache.reset();
426	r_dcache.reset();
427
428	icache_tlb.reset();
429	dcache_tlb.reset();
430
431	std::memset(r_dcache_in_itlb, 0, sizeof(r_dcache_in_itlb)m_icache_ways*m_icache_sets);
432	std::memset(r_dcache_in_dtlb, 0, sizeof(r_dcache_in_dtlb)m_dcache_ways*m_dcache_sets);
433
434	//r_mmu_mode = ALL_DEACTIVE;
435	r_mmu_mode = 0x3;
436	r_mmu_params = (uint32_log2(m_dtlb_ways) << 29) \| (uint32_log2(m_dtlb_sets) << 25) \|
437	(uint32_log2(m_dcache_ways) << 22) \| (uint32_log2(m_dcache_sets) << 18) \|
438	(uint32_log2(m_itlb_ways) << 15) \| (uint32_log2(m_itlb_sets) << 11) \|
439	(uint32_log2(m_icache_ways) << 8) \| (uint32_log2(m_icache_sets) << 4) \|
440	(uint32_log2(m_icache_words * 4));
441	r_mmu_release = (uint32_t)(1 << 16) \| 0x1;
442
443	r_icache_miss_req = false;
444	r_icache_unc_req = false;
445	r_dcache_itlb_read_req = false;
446
447	r_itlb_read_dcache_req = false;
448	r_itlb_k_read_dcache = false;
449	r_itlb_acc_dcache_req = false;
450	r_itlb_acc_redo_req = false;
451	r_dcache_rsp_itlb_error = false;
452
453	r_dcache_miss_req = false;
454	r_dcache_unc_req = false;
455	r_dcache_write_req = false;
456	r_dcache_tlb_read_req = false;
457	r_dcache_tlb_ptba_read = false;
458	r_dcache_xtn_req = false;
459	r_dcache_llsc_reserved = false;
460
461	r_dcache_tlb_ll_acc_req = false;
462	r_dcache_tlb_sc_acc_req = false;
463	r_dcache_tlb_ll_dirty_req = false;
464	r_dcache_tlb_sc_dirty_req = false;
465	r_dcache_sc_updt_dirty = false;
466	r_dcache_itlb_ll_acc_req = false;
467	r_dcache_itlb_sc_acc_req = false;
468
469	r_icache_cleanup_req = false;
470	r_dcache_cleanup_req = false;
471
472	r_tgt_icache_req = false;
473	r_tgt_dcache_req = false;
474
475	r_icache_inval_rsp = false;
476	r_dcache_inval_rsp = false;
477
478	r_dcache_dirty_save = false;
479	r_dcache_hit_p_save = false;
480	r_dcache_cached_save = false;
481
482	r_icache_buf_unc_valid = false;
483	r_dcache_buf_unc_valid = false;
484
485	r_vci_rsp_ins_error = false;
486	r_vci_rsp_data_error = false;
487
488	r_icache_id1_save = 0;
489	r_icache_ppn_save = 0;
490	r_icache_vpn_save = 0;
491	r_itlb_translation_valid = false;
492
493	r_dcache_id1_save = 0;
494	r_dcache_ppn_save = 0;
495	r_dcache_vpn_save = 0;
496	r_dtlb_translation_valid = false;
497
498	r_icache_ptba_ok = false;
499	r_dcache_ptba_ok = false;
500
501	r_icache_error_type = MMU_NONE;
502	r_dcache_error_type = MMU_NONE;
503
504	// coherence registers
505	r_icache_way = 0;
506	r_icache_set = 0;
507	r_icache_cleanup_req = false;
508	r_icache_inval_rsp = false;
509
510	r_dcache_way = 0;
511	r_dcache_set = 0;
512	r_dcache_cleanup_req = false;
513	r_dcache_inval_rsp = false;
514
515	r_itlb_inval_req = false;
516	r_dcache_itlb_inval_req = false;
517	r_itlb_cc_check_end = false;
518	r_ccinval_itlb_way = 0;
519	r_ccinval_itlb_set = 0;
520	r_icache_inval_tlb_rsp = false;
521
522	r_dcache_dtlb_inval_req = false;
523	r_dtlb_cc_check_end = false;
524	r_ccinval_dtlb_way = 0;
525	r_ccinval_dtlb_set = 0;
526	r_dcache_inval_tlb_rsp = false;
527
528	r_dcache_itlb_cleanup_req = false;
529	r_dcache_dtlb_cleanup_req = false;
530
531	r_dcache_cc_check = false;
532	r_dcache_tlb_sc_fail = false;
533
534	// activity counters
535	m_cpt_dcache_data_read = 0;
536	m_cpt_dcache_data_write = 0;
537	m_cpt_dcache_dir_read = 0;
538	m_cpt_dcache_dir_write = 0;
539	m_cpt_icache_data_read = 0;
540	m_cpt_icache_data_write = 0;
541	m_cpt_icache_dir_read = 0;
542	m_cpt_icache_dir_write = 0;
543
544	m_cpt_frz_cycles = 0;
545	m_cpt_dcache_frz_cycles = 0;
546	m_cpt_total_cycles = 0;
547
548	m_cpt_read = 0;
549	m_cpt_write = 0;
550	m_cpt_data_miss = 0;
551	m_cpt_ins_miss = 0;
552	m_cpt_unc_read = 0;
553	m_cpt_write_cached = 0;
554	m_cpt_ins_read = 0;
555
556	m_cost_write_frz = 0;
557	m_cost_data_miss_frz = 0;
558	m_cost_unc_read_frz = 0;
559	m_cost_ins_miss_frz = 0;
560
561	m_cpt_imiss_transaction = 0;
562	m_cpt_dmiss_transaction = 0;
563	m_cpt_unc_transaction = 0;
564	m_cpt_write_transaction = 0;
565	m_cpt_icache_unc_transaction = 0;
566
567	m_cost_imiss_transaction = 0;
568	m_cost_dmiss_transaction = 0;
569	m_cost_unc_transaction = 0;
570	m_cost_write_transaction = 0;
571	m_cost_icache_unc_transaction = 0;
572	m_length_write_transaction = 0;
573
574	m_cpt_ins_tlb_read = 0;
575	m_cpt_ins_tlb_miss = 0;
576	m_cpt_ins_tlb_update_acc = 0;
577
578	m_cpt_data_tlb_read = 0;
579	m_cpt_data_tlb_miss = 0;
580	m_cpt_data_tlb_update_acc = 0;
581	m_cpt_data_tlb_update_dirty = 0;
582	m_cpt_ins_tlb_hit_dcache = 0;
583	m_cpt_data_tlb_hit_dcache = 0;
584	m_cpt_ins_tlb_occup_cache = 0;
585	m_cpt_data_tlb_occup_cache = 0;
586
587	m_cost_ins_tlb_miss_frz = 0;
588	m_cost_data_tlb_miss_frz = 0;
589	m_cost_ins_tlb_update_acc_frz = 0;
590	m_cost_data_tlb_update_acc_frz = 0;
591	m_cost_data_tlb_update_dirty_frz = 0;
592	m_cost_ins_tlb_occup_cache_frz = 0;
593	m_cost_data_tlb_occup_cache_frz = 0;
594
595	m_cpt_itlbmiss_transaction = 0;
596	m_cpt_itlb_ll_transaction = 0;
597	m_cpt_itlb_sc_transaction = 0;
598	m_cpt_dtlbmiss_transaction = 0;
599	m_cpt_dtlb_ll_transaction = 0;
600	m_cpt_dtlb_sc_transaction = 0;
601	m_cpt_dtlb_ll_dirty_transaction = 0;
602	m_cpt_dtlb_sc_dirty_transaction = 0;
603
604	m_cost_itlbmiss_transaction = 0;
605	m_cost_itlb_ll_transaction = 0;
606	m_cost_itlb_sc_transaction = 0;
607	m_cost_dtlbmiss_transaction = 0;
608	m_cost_dtlb_ll_transaction = 0;
609	m_cost_dtlb_sc_transaction = 0;
610	m_cost_dtlb_ll_dirty_transaction = 0;
611	m_cost_dtlb_sc_dirty_transaction = 0;
612	return;
613	}
614
615	#ifdef SOCLIB_MODULE_DEBUG
616	std::cout << name() << " cycle = " << std::dec << m_cpt_total_cycles
617	<< " tgt fsm: " << tgt_fsm_state_str[r_vci_tgt_fsm]
618	<< " dcache fsm: " << dcache_fsm_state_str[r_dcache_fsm]
619	<< " icache fsm: " << icache_fsm_state_str[r_icache_fsm]
620	<< " cmd fsm: " << cmd_fsm_state_str[r_vci_cmd_fsm]
621	<< " rsp fsm: " << rsp_fsm_state_str[r_vci_rsp_fsm]
622	<< " inval itlb fsm: " << inval_itlb_fsm_state_str[r_inval_itlb_fsm]
623	<< " inval dtlb fsm: " << inval_dtlb_fsm_state_str[r_inval_dtlb_fsm] << std::endl;
624	#endif
625
626	m_cpt_total_cycles++;
627
628	typename iss_t::InstructionRequest ireq = ISS_IREQ_INITIALIZER;
629	typename iss_t::InstructionResponse irsp = ISS_IRSP_INITIALIZER;
630
631	typename iss_t::DataRequest dreq = ISS_DREQ_INITIALIZER;
632	typename iss_t::DataResponse drsp = ISS_DRSP_INITIALIZER;
633
634	m_iss.getRequests( ireq, dreq );
635
636	#ifdef SOCLIB_MODULE_DEBUG
637	std::cout << name() << " Instruction Request: " << ireq << std::endl;
638	std::cout << name() << " Data Request: " << dreq << std::endl;
639	#endif
640
641	/////////////////////////////////////////////////////////////////////
642	// The TGT_FSM controls the following ressources:
643	// - r_vci_tgt_fsm
644	// - r_tgt_buf[nwords]
645	// - r_tgt_val[nwords]
646	// - r_tgt_update
647	// - r_tgt_word
648	// - r_tgt_addr
649	// - r_tgt_srcid
650	// - r_tgt_trdid
651	// - r_tgt_pktid
652	// All VCI commands must be CMD_WRITE.
653	// If the VCI address offset is null, the command is an invalidate
654	// request. It is an update request otherwise.
655	// The VCI_TGT FSM stores the external request arguments in the
656	// IDLE, UPDT_WORD & UPDT_DATA states. It sets the r_tgt_icache_req
657	// & r_tgt_dcache_req flip-flops to signal the external request to
658	// the ICACHE & DCACHE FSMs in the REQ state. It waits the completion
659	// of the update or invalidate request in the RSP state.
660	// - for an invalidate request the VCI packet length is 1 word.
661	// The WDATA field contains the line index (i.e. the Z & Y fields).
662	// - for an update request the VCI packet length is (n+2) words.
663	// The WDATA field of the first VCI word contains the line number.
664	// The WDATA field of the second VCI word contains the word index.
665	// The WDATA field of the n following words contains the values.
666	// - for both invalidate & update requests, the VCI response
667	// is one single word.
668	// In case of errors in the VCI command packet, the simulation
669	// is stopped with an error message.
670	/////////////////////////////////////////////////////////////////////
671
672	switch(r_vci_tgt_fsm) {
673	//////////////
674	case TGT_IDLE:
675	{
676	if ( p_vci_tgt.cmdval.read() )
677	{
678	paddr_t address = p_vci_tgt.address.read();
679
680	if ( p_vci_tgt.cmd.read() != vci_param::CMD_WRITE)
681	{
682	std::cout << "error in component VCI_CC_VCACHE_WRAPPER " << name() << std::endl;
683	std::cout << "the received VCI command is not a write" << std::endl;
684	exit(0);
685	}
686
687	// multi-update or multi-invalidate for data type
688	if ( ( (address & 0x3) != 0x3 ) && ( ! m_segment.contains(address)) )
689	{
690	std::cout << "error in component VCI_CC_VCACHE_WRAPPER " << name() << std::endl;
691	std::cout << "out of segment VCI command received for a multi-updt or multi-inval request" << std::endl;
692	exit(0);
693	}
694
695	r_tgt_srcid = p_vci_tgt.srcid.read();
696	r_tgt_trdid = p_vci_tgt.trdid.read();
697	r_tgt_pktid = p_vci_tgt.pktid.read();
698	r_tgt_plen = p_vci_tgt.plen.read(); // todo: wait L2 modification
699	r_tgt_addr = (paddr_t)(p_vci_tgt.be.read() & 0x3) << 32 \|
700	(paddr_t)p_vci_tgt.wdata.read() * m_dcache_words * 4;
701
702	if ( (address&0x3) == 0x3 ) // broadcast invalidate for data or instruction type
703	{
704	if ( ! p_vci_tgt.eop.read() )
705	{
706	std::cout << "error in component VCI_CC_VCACHE_WRAPPER " << name() << std::endl;
707	std::cout << "the BROADCAST INVALIDATE command length must be one word" << std::endl;
708	exit(0);
709	}
710	r_tgt_update = false;
711	r_vci_tgt_fsm = TGT_REQ_BROADCAST;
712	m_cpt_cc_broadcast++;
713	}
714	else // multi-update or multi-invalidate for data type
715	{
716	paddr_t cell = address - m_segment.baseAddress();
717
718	if (cell == 0) // invalidate
719	{
720	if ( ! p_vci_tgt.eop.read() )
721	{
722	std::cout << "error in component VCI_CC_VCACHE_WRAPPER " << name() << std::endl;
723	std::cout << "the MULTI-INVALIDATE command length must be one word" << std::endl;
724	exit(0);
725	}
726	r_tgt_update = false;
727	r_vci_tgt_fsm = TGT_REQ_DCACHE;
728	m_cpt_cc_inval_data++ ;
729	}
730	else if (cell == 4) // update
731	{
732	if ( p_vci_tgt.eop.read() )
733	{
734	std::cout << "error in component VCI_CC_VCACHE_WRAPPER " << name() << std::endl;
735	std::cout << "the MULTI-UPDATE command length must be N+2 words" << std::endl;
736	exit(0);
737	}
738	r_tgt_update = true;
739	r_vci_tgt_fsm = TGT_UPDT_WORD;
740	m_cpt_cc_update_data++ ;
741	}
742	else if (cell == 8)
743	{
744	if ( ! p_vci_tgt.eop.read() )
745	{
746	std::cout << "error in component VCI_CC_VCACHE_WRAPPER " << name() << std::endl;
747	std::cout << "the MULTI-INVALIDATE command length must be one word" << std::endl;
748	exit(0);
749	}
750	r_tgt_update = false;
751	r_vci_tgt_fsm = TGT_REQ_ICACHE;
752	m_cpt_cc_inval_ins++ ;
753
754	}
755	} // end if address
756	} // end if cmdval
757	break;
758	}
759	///////////////////
760	case TGT_UPDT_WORD:
761	{
762	if (p_vci_tgt.cmdval.read())
763	{
764	if ( p_vci_tgt.eop.read() )
765	{
766	std::cout << "error in component VCI_CC_VCACHE_WRAPPER " << name() << std::endl;
767	std::cout << "the MULTI-UPDATE command length must be N+2 words" << std::endl;
768	exit(0);
769	}
770	for ( size_t i=0 ; i<m_dcache_words ; i++ ) r_tgt_val[i] = false;
771	r_tgt_word = p_vci_tgt.wdata.read(); // the first modified word index
772	r_vci_tgt_fsm = TGT_UPDT_DATA;
773	}
774	break;
775	}
776	///////////////////
777	case TGT_UPDT_DATA:
778	{
779	if (p_vci_tgt.cmdval.read())
780	{
781	size_t word = r_tgt_word.read();
782	if (word >= m_dcache_words)
783	{
784	std::cout << "error in component VCI_CC_VCACHE_WRAPPER " << name() << std::endl;
785	std::cout << "the reveived MULTI-UPDATE command length is wrong" << std::endl;
786	exit(0);
787	}
788	r_tgt_buf[word] = p_vci_tgt.wdata.read();
789	if(p_vci_tgt.be.read()) r_tgt_val[word] = true;
790	r_tgt_word = word + 1;
791	if (p_vci_tgt.eop.read()) r_vci_tgt_fsm = TGT_REQ_DCACHE;
792	}
793	break;
794	}
795	////////////////////////
796	case TGT_REQ_BROADCAST:
797	{
798	if ( !r_tgt_icache_req.read() && !r_tgt_dcache_req.read() )
799	{
800	r_vci_tgt_fsm = TGT_RSP_BROADCAST;
801	r_tgt_icache_req = true;
802	r_tgt_dcache_req = true;
803	}
804	break;
805	}
806	/////////////////////
807	case TGT_REQ_ICACHE:
808	{
809	if ( !r_tgt_icache_req.read() )
810	{
811	r_vci_tgt_fsm = TGT_RSP_ICACHE;
812	r_tgt_icache_req = true;
813	}
814	break;
815	}
816	/////////////////////
817	case TGT_REQ_DCACHE:
818	{
819	if ( !r_tgt_dcache_req.read() )
820	{
821	r_vci_tgt_fsm = TGT_RSP_DCACHE;
822	r_tgt_dcache_req = true;
823	}
824	break;
825	}
826	///////////////////////
827	case TGT_RSP_BROADCAST:
828	{
829	// no response
830	if ( !r_tgt_icache_rsp.read() && !r_tgt_dcache_rsp.read() && !r_tgt_icache_req.read() && !r_tgt_dcache_req.read() )
831	{
832	r_vci_tgt_fsm = TGT_IDLE;
833	break;
834	}
835
836	if ( p_vci_tgt.rspack.read() && !r_tgt_icache_req.read() && !r_tgt_dcache_req.read() )
837	{
838	// one response
839	if ( !r_tgt_icache_rsp \|\| !r_tgt_dcache_rsp )
840	{
841	r_vci_tgt_fsm = TGT_IDLE;
842	r_tgt_icache_rsp = false;
843	r_tgt_dcache_rsp = false;
844	}
845
846	// if data and instruction have the inval line, need two responses
847	if ( r_tgt_icache_rsp && r_tgt_dcache_rsp )
848	{
849	r_tgt_icache_rsp = false; // only reset one for respond the second time
850	}
851	}
852	break;
853	}
854	/////////////////////
855	case TGT_RSP_ICACHE:
856	{
857	if ( (p_vci_tgt.rspack.read() \|\| !r_tgt_icache_rsp.read()) && !r_tgt_icache_req.read() )
858	{
859	r_vci_tgt_fsm = TGT_IDLE;
860	r_tgt_icache_rsp = false;
861	}
862	break;
863	}
864	/////////////////////
865	case TGT_RSP_DCACHE:
866	{
867	if ( (p_vci_tgt.rspack.read() \|\| !r_tgt_dcache_rsp.read()) && !r_tgt_dcache_req.read() )
868	{
869	r_vci_tgt_fsm = TGT_IDLE;
870	r_tgt_dcache_rsp = false;
871	}
872	break;
873	}
874	} // end switch TGT_FSM
875
876	////////////////////////////////////////////////////////////////////////////////////////
877	// ICACHE_FSM
878	//
879	// There is 9 mutually exclusive conditions to exit the IDLE state.
880	// Four configurations corresponding to an XTN request from processor,
881	// - Flush TLB (in case of Context switch) => TLB_FLUSH state
882	// - Flush cache => CACHE_FLUSH state
883	// - Invalidate a TLB entry => TLB_INVAL state
884	// - Invalidate a cache line => CACHE_INVAL state
885	// Five configurations corresponding to various TLB or cache MISS :
886	// - TLB miss(in case hit_p miss) => TLB1_READ state
887	// - TLB miss(in case hit_p hit) => TLB2_READ state
888	// - Hit in TLB but VPN changed => BIS state
889	// - Cached read miss => MISS_REQ state
890	// - Uncache read miss => UNC_REQ state
891	//
892	// In case of MISS, the controller writes a request in the r_icache_paddr_save register
893	// and sets the corresponding request flip-flop : r_dcache_itlb_read_req, r_icache_miss_req
894	// or r_icache_unc_req. These request flip-flops are reset by the VCI_RSP controller
895	// when the response is ready in the ICACHE buffer.
896	//
897	// The DCACHE FSM signals XTN processor requests using the r_dcache_xtn_req flip-flop.
898	// The request opcod and the address to be invalidated are transmitted
899	// in the r_dcache_paddr_save & r_dcache_wdata_save registers respectively.
900	// The request flip-flop is reset by the ICACHE_FSM when the operation is completed.
901	//
902	// The r_vci_rsp_ins_error flip-flop is set by the VCI_RSP FSM and reset
903	// by the ICACHE-FSM in the ICACHE_ERROR state.
904	//
905	//-----------------------------------------------------------------------------------
906	// Instruction TLB:
907	//
908	// - int ET (00: unmapped; 01: unused or PTD)
909	// (10: PTE new; 11: PTE old )
910	// - bool cachable (cached bit)
911	// - bool writable (** not used alwayse false)
912	// - bool executable (executable bit)
913	// - bool user (access in user mode allowed)
914	// - bool global (PTE not invalidated by a TLB flush)
915	// - bool dirty (** not used alwayse false)
916	// - uint32_t vpn (virtual page number)
917	// - uint32_t ppn (physical page number)
918	////////////////////////////////////////////////////////////////////////////////////////
919
920	switch(r_icache_fsm) {
921
922	////////////////
923	case ICACHE_IDLE:
924	{
925	pte_info_t icache_pte_info;
926	paddr_t tlb_ipaddr = 0; // physical address obtained from TLB
927	paddr_t spc_ipaddr = 0; // physical adress obtained from PPN_save (speculative)
928	data_t icache_ins = 0; // read instruction
929	bool icache_hit_c = false; // Cache hit
930	bool icache_cached = false; // cacheable access (read)
931	bool icache_hit_t = false; // hit on TLB
932	bool icache_hit_x = false; // VPN unmodified (can use spc_dpaddr)
933	bool icache_hit_p = false; // PTP unmodified (can skip first level page table walk)
934	size_t icache_tlb_way = 0; // selected way (in case of cache hit)
935	size_t icache_tlb_set = 0; // selected set (Y field in address)
936	paddr_t icache_tlb_nline = 0; // TLB NLINE
937
938	// Decoding processor XTN requests
939	// They are sent by DCACHE FSM
940
941	if (r_dcache_xtn_req)
942	{
943	if ((int)r_dcache_type_save == (int)iss_t::XTN_PTPR )
944	{
945	r_icache_way = 0;
946	r_icache_set = 0;
947	r_icache_fsm = ICACHE_SW_FLUSH;
948	break;
949	}
950	if ((int)r_dcache_type_save == (int)iss_t::XTN_ICACHE_FLUSH)
951	{
952	r_icache_way = 0;
953	r_icache_set = 0;
954	r_icache_fsm = ICACHE_CACHE_FLUSH;
955	break;
956	}
957	if ((int)r_dcache_type_save == (int)iss_t::XTN_ITLB_INVAL)
958	{
959	r_icache_fsm = ICACHE_TLB_INVAL;
960	break;
961	}
962	if ((int)r_dcache_type_save == (int)iss_t::XTN_ICACHE_INVAL)
963	{
964	r_icache_fsm = ICACHE_CACHE_INVAL;
965	break;
966	}
967	if ((int)r_dcache_type_save == (int)iss_t::XTN_MMU_ICACHE_PA_INV)
968	{
969	r_icache_fsm = ICACHE_CACHE_INVAL_PA;
970	break;
971	}
972	if ((int)r_dcache_type_save == (int)iss_t::XTN_DCACHE_FLUSH )
973	{
974	// special for ins tlb miss via data cache
975	r_icache_fsm = ICACHE_TLB_FLUSH;
976	break;
977	}
978	} // end if xtn_req
979
980	// external cache invalidate request
981	if ( r_tgt_icache_req )
982	{
983	r_icache_fsm = ICACHE_CC_INVAL;
984	r_icache_fsm_save = r_icache_fsm;
985	break;
986	}
987
988	// external tlb invalidate request
989	if ( r_dcache_itlb_inval_req )
990	{
991	r_itlb_inval_req = true;
992	r_icache_fsm = ICACHE_TLB_CC_INVAL;
993	r_icache_fsm_save = r_icache_fsm;
994	break;
995	}
996
997	// icache_hit_t_m, icache_hit_t_k, icache_hit_x, icache_hit_p
998	// icache_pte_info, icache_tlb_way, icache_tlb_set & ipaddr & cacheability
999	// - If MMU activated : cacheability is defined by the cachable bit in the TLB
1000	// - If MMU not activated : cacheability is defined by the segment table.
1001
1002	if ( !(r_mmu_mode.read() & INS_TLB_MASK) ) // MMU not activated
1003	{
1004	icache_hit_t = true;
1005	icache_hit_x = true;
1006	icache_hit_p = true;
1007	tlb_ipaddr = ireq.addr;
1008	spc_ipaddr = ireq.addr;
1009	icache_cached = m_cacheability_table[ireq.addr];
1010	}
1011	else // MMU activated
1012	{
1013	m_cpt_ins_tlb_read++;
1014	icache_hit_t = icache_tlb.cctranslate(ireq.addr, &tlb_ipaddr, &icache_pte_info,
1015	&icache_tlb_nline, &icache_tlb_way, &icache_tlb_set);
1016	icache_hit_x = (((vaddr_t)r_icache_vpn_save << PAGE_K_NBITS) == (ireq.addr & ~PAGE_K_MASK)) && r_itlb_translation_valid;
1017	icache_hit_p = (((ireq.addr >> PAGE_M_NBITS) == r_icache_id1_save) && r_icache_ptba_ok);
1018	spc_ipaddr = ((paddr_t)r_icache_ppn_save << PAGE_K_NBITS) \| (paddr_t)(ireq.addr & PAGE_K_MASK);
1019	icache_cached = icache_pte_info.c;
1020	}
1021
1022	if ( !(r_mmu_mode.read() & INS_CACHE_MASK) ) // cache not actived
1023	{
1024	icache_cached = false;
1025	}
1026
1027	if ( ireq.valid )
1028	{
1029	m_cpt_icache_dir_read += m_icache_ways;
1030	m_cpt_icache_data_read += m_icache_ways;
1031
1032	// icache_hit_c & icache_ins
1033	if ( icache_cached ) // using speculative physical address for cached access
1034	{
1035	icache_hit_c = r_icache.read(spc_ipaddr, &icache_ins);
1036	}
1037	else // using actual physical address for uncached access
1038	{
1039	icache_hit_c = ( r_icache_buf_unc_valid && (tlb_ipaddr == (paddr_t)r_icache_paddr_save) );
1040	icache_ins = r_icache_miss_buf[0];
1041	}
1042
1043	if ( r_mmu_mode.read() & INS_TLB_MASK )
1044	{
1045	if ( icache_hit_t )
1046	{
1047	// check access rights
1048	if ( !icache_pte_info.u && (ireq.mode == iss_t::MODE_USER))
1049	{
1050	r_icache_error_type = MMU_READ_PRIVILEGE_VIOLATION;
1051	r_icache_bad_vaddr = ireq.addr;
1052	irsp.valid = true;
1053	irsp.error = true;
1054	irsp.instruction = 0;
1055	break;
1056	}
1057	if ( !icache_pte_info.x )
1058	{
1059	r_icache_error_type = MMU_READ_EXEC_VIOLATION;
1060	r_icache_bad_vaddr = ireq.addr;
1061	irsp.valid = true;
1062	irsp.error = true;
1063	irsp.instruction = 0;
1064	break;
1065	}
1066	}
1067
1068	// update LRU, save ppn, vpn and page type
1069	if ( icache_hit_t )
1070	{
1071	icache_tlb.setlru(icache_tlb_way,icache_tlb_set);
1072	r_icache_ppn_save = tlb_ipaddr >> PAGE_K_NBITS;
1073	r_icache_vpn_save = ireq.addr >> PAGE_K_NBITS;
1074	r_icache_tlb_nline = icache_tlb_nline;
1075	r_itlb_translation_valid = true;
1076	}
1077	else
1078	{
1079	r_itlb_translation_valid = false;
1080	}
1081
1082	} // end if MMU activated
1083
1084	// compute next state
1085	if ( !icache_hit_t && !icache_hit_p ) // TLB miss
1086	{
1087	// walk page table level 1
1088	r_icache_paddr_save = (paddr_t)r_mmu_ptpr << (INDEX1_NBITS+2) \| (paddr_t)((ireq.addr>>PAGE_M_NBITS)<<2);
1089	r_itlb_read_dcache_req = true;
1090	r_icache_vaddr_req = ireq.addr;
1091	r_icache_fsm = ICACHE_TLB1_READ;
1092	m_cpt_ins_tlb_miss++;
1093	m_cost_ins_tlb_miss_frz++;
1094	}
1095	else if ( !icache_hit_t && icache_hit_p ) // TLB Miss with possibility of bypass first level page
1096	{
1097	// walk page table level 2
1098	r_icache_paddr_save = (paddr_t)r_icache_ptba_save \|
1099	(paddr_t)(((ireq.addr&PTD_ID2_MASK)>>PAGE_K_NBITS) << 3);
1100	r_itlb_read_dcache_req = true;
1101	r_icache_vaddr_req = ireq.addr;
1102	r_itlb_k_read_dcache = true;
1103	r_icache_fsm = ICACHE_TLB2_READ;
1104	m_cpt_ins_tlb_miss++;
1105	m_cost_ins_tlb_miss_frz++;
1106	}
1107	else if ( icache_hit_t && !icache_hit_x && icache_cached ) // cached access with an ucorrect speculative physical address
1108	{
1109	r_icache_paddr_save = tlb_ipaddr; // save actual physical address for BIS
1110	r_icache_vaddr_req = ireq.addr;
1111	r_icache_fsm = ICACHE_BIS;
1112	m_cost_ins_miss_frz++;
1113	}
1114	else // cached or uncached access with a correct speculative physical address
1115	{
1116	m_cpt_ins_read++;
1117	if ( !icache_hit_c )
1118	{
1119	m_cpt_ins_miss++;
1120	m_cost_ins_miss_frz++;
1121	if ( icache_cached )
1122	{
1123	r_icache_miss_req = true;
1124	r_icache_paddr_save = spc_ipaddr;
1125	r_icache_vaddr_req = ireq.addr;
1126	r_icache_fsm = ICACHE_MISS_WAIT;
1127	}
1128	else
1129	{
1130	r_icache_unc_req = true;
1131	r_icache_buf_unc_valid = false;
1132	r_icache_paddr_save = tlb_ipaddr;
1133	r_icache_vaddr_req = ireq.addr;
1134	r_icache_fsm = ICACHE_UNC_WAIT;
1135	}
1136	}
1137	else
1138	{
1139	r_icache_buf_unc_valid = false;
1140	r_icache_fsm = ICACHE_IDLE;
1141	}
1142	irsp.valid = icache_hit_c;
1143	irsp.instruction = icache_ins;
1144	} // end if next states
1145
1146	} // end if ireq.valid
1147	break;
1148	}
1149	////////////////
1150	case ICACHE_BIS:
1151	{
1152	// external cache invalidate request
1153	if ( r_tgt_icache_req )
1154	{
1155	if ( ireq.valid ) m_cost_ins_miss_frz++;
1156	r_icache_fsm = ICACHE_CC_INVAL;
1157	r_icache_fsm_save = r_icache_fsm;
1158	break;
1159	}
1160
1161	// external tlb invalidate request
1162	if ( r_dcache_itlb_inval_req )
1163	{
1164	if ( ireq.valid ) m_cost_ins_miss_frz++;
1165	r_itlb_inval_req = true;
1166	r_icache_fsm = ICACHE_TLB_CC_INVAL;
1167	r_icache_fsm_save = r_icache_fsm;
1168	break;
1169	}
1170
1171	// using page is invalidated
1172	if ( r_icache_inval_tlb_rsp )
1173	{
1174	if ( ireq.valid ) m_cost_ins_miss_frz++;
1175	r_icache_inval_tlb_rsp = false;
1176	r_icache_fsm = ICACHE_IDLE;
1177	break;
1178	}
1179
1180	data_t icache_ins = 0;
1181	bool icache_hit_c = false;
1182	bool icache_hit_t = false;
1183	paddr_t tlb_ipaddr = 0;
1184
1185	icache_hit_t = icache_tlb.translate(ireq.addr, &tlb_ipaddr);
1186
1187	if ( (tlb_ipaddr == r_icache_paddr_save.read()) && ireq.valid && icache_hit_t ) // unmodified & valid
1188	{
1189	m_cpt_ins_read++;
1190
1191	// acces is always cached in this state
1192	icache_hit_c = r_icache.read(r_icache_paddr_save, &icache_ins);
1193
1194	if ( !icache_hit_c )
1195	{
1196	r_icache_miss_req = true;
1197	r_icache_fsm = ICACHE_MISS_WAIT;
1198	m_cpt_ins_miss++;
1199	m_cost_ins_miss_frz++;
1200	}
1201	else
1202	{
1203	r_icache_fsm = ICACHE_IDLE;
1204	}
1205	irsp.valid = icache_hit_c;
1206	if (irsp.valid)
1207	assert((r_icache_vaddr_req.read() == ireq.addr) &&
1208	"vaddress should not be modified while ICACHE_BIS");
1209	irsp.error = false;
1210	irsp.instruction = icache_ins;
1211	}
1212	else // modified or invalid
1213	{
1214	irsp.valid = false;
1215	irsp.error = false;
1216	irsp.instruction = 0;
1217	r_icache_fsm = ICACHE_IDLE;
1218	}
1219	break;
1220	}
1221	//////////////////////
1222	case ICACHE_TLB1_READ:
1223	{
1224	if ( ireq.valid ) m_cost_ins_tlb_miss_frz++;
1225
1226	// external cache invalidate request
1227	if ( r_tgt_icache_req )
1228	{
1229	r_icache_fsm = ICACHE_CC_INVAL;
1230	r_icache_fsm_save = r_icache_fsm;
1231	break;
1232	}
1233
1234	// external tlb invalidate request
1235	if ( r_dcache_itlb_inval_req )
1236	{
1237	r_itlb_inval_req = true;
1238	r_icache_fsm = ICACHE_TLB_CC_INVAL;
1239	r_icache_fsm_save = r_icache_fsm;
1240	break;
1241	}
1242
1243	if ( !r_itlb_read_dcache_req )
1244	{
1245	if (r_icache_vaddr_req.read() != ireq.addr \|\| !ireq.valid)
1246	{
1247	/* request modified, drop response and restart */
1248	r_icache_ptba_ok = false;
1249	if ( r_icache_inval_tlb_rsp ) r_icache_inval_tlb_rsp = false;
1250	if ( r_dcache_rsp_itlb_error ) r_dcache_rsp_itlb_error = false;
1251	r_icache_fsm = ICACHE_IDLE;
1252	break;
1253	}
1254
1255	if ( !r_icache_inval_tlb_rsp ) // TLB miss read response and no invalidation
1256	{
1257	if ( !r_dcache_rsp_itlb_error ) // vci response ok
1258	{
1259	if ( !(r_dcache_rsp_itlb_miss >> PTE_V_SHIFT) ) // unmapped
1260	{
1261	r_icache_ptba_ok = false;
1262	r_icache_error_type = MMU_READ_PT1_UNMAPPED;
1263	r_icache_bad_vaddr = r_icache_vaddr_req.read();
1264	r_icache_fsm = ICACHE_ERROR;
1265	}
1266	else if ( (r_dcache_rsp_itlb_miss & PTE_T_MASK ) >> PTE_T_SHIFT ) // PTD
1267	{
1268	r_icache_ptba_ok = true;
1269	r_icache_ptba_save = (paddr_t)(r_dcache_rsp_itlb_miss & ((1<<(m_paddr_nbits - PAGE_K_NBITS))-1)) << PAGE_K_NBITS;
1270	r_icache_id1_save = r_icache_vaddr_req.read() >> PAGE_M_NBITS;
1271	r_icache_paddr_save = (paddr_t)(r_dcache_rsp_itlb_miss & ((1<<(m_paddr_nbits - PAGE_K_NBITS))-1)) << PAGE_K_NBITS \|
1272	(paddr_t)(((r_icache_vaddr_req.read() & PTD_ID2_MASK) >> PAGE_K_NBITS) << 3);
1273	r_itlb_read_dcache_req = true;
1274	r_itlb_k_read_dcache = true;
1275	r_icache_fsm = ICACHE_TLB2_READ;
1276	}
1277	else
1278	{
1279	r_icache_ptba_ok = false;
1280
1281	if ( (m_srcid_rw >> 4) == ((r_dcache_rsp_itlb_miss & ((1<<(m_paddr_nbits - PAGE_M_NBITS))-1)) >> (m_paddr_nbits - PAGE_M_NBITS -10)) ) // local
1282	{
1283	if ( (r_dcache_rsp_itlb_miss & PTE_L_MASK ) >> PTE_L_SHIFT ) // L bit is set
1284	{
1285	r_icache_pte_update = r_dcache_rsp_itlb_miss;
1286	r_icache_fsm = ICACHE_TLB1_UPDT;
1287	}
1288	else
1289	{
1290	r_icache_pte_update = r_dcache_rsp_itlb_miss \| PTE_L_MASK;
1291	r_itlb_acc_dcache_req = true;
1292	r_icache_fsm = ICACHE_TLB1_WRITE;
1293	m_cpt_ins_tlb_update_acc++;
1294	m_cost_ins_tlb_update_acc_frz++;
1295	}
1296	}
1297	else // remotely
1298	{
1299	if ( (r_dcache_rsp_itlb_miss & PTE_R_MASK ) >> PTE_R_SHIFT ) // R bit is set
1300	{
1301	r_icache_pte_update = r_dcache_rsp_itlb_miss;
1302	r_icache_fsm = ICACHE_TLB1_UPDT;
1303	}
1304	else
1305	{
1306	r_icache_pte_update = r_dcache_rsp_itlb_miss \| PTE_R_MASK;
1307	r_itlb_acc_dcache_req = true;
1308	r_icache_fsm = ICACHE_TLB1_WRITE;
1309	m_cpt_ins_tlb_update_acc++;
1310	m_cost_ins_tlb_update_acc_frz++;
1311	}
1312	}
1313	}
1314	}
1315	else // vci response error
1316	{
1317	r_icache_fsm = ICACHE_ERROR;
1318	r_icache_error_type = MMU_READ_PT1_ILLEGAL_ACCESS;
1319	r_icache_bad_vaddr = r_icache_vaddr_req.read();
1320	}
1321	}
1322	else // TLB miss read response and invalidation
1323	{
1324	if ( r_dcache_rsp_itlb_error )
1325	{
1326	r_icache_inval_tlb_rsp = false;
1327	r_icache_error_type = MMU_READ_PT1_ILLEGAL_ACCESS;
1328	r_icache_bad_vaddr = r_icache_vaddr_req.read();
1329	r_icache_fsm = ICACHE_ERROR;
1330	}
1331	else
1332	{
1333	r_icache_inval_tlb_rsp = false;
1334	r_icache_fsm = ICACHE_IDLE;
1335	}
1336	}
1337	}
1338	break;
1339	}
1340	///////////////////////
1341	case ICACHE_TLB1_WRITE:
1342	{
1343	if ( ireq.valid ) m_cost_ins_tlb_miss_frz++;
1344	m_cost_ins_tlb_update_acc_frz++;
1345
1346	// external cache invalidate request
1347	if ( r_tgt_icache_req )
1348	{
1349	r_icache_fsm = ICACHE_CC_INVAL;
1350	r_icache_fsm_save = r_icache_fsm;
1351	break;
1352	}
1353	// external tlb invalidate request
1354	if ( r_dcache_itlb_inval_req )
1355	{
1356	r_itlb_inval_req = true;
1357	r_icache_fsm = ICACHE_TLB_CC_INVAL;
1358	r_icache_fsm_save = r_icache_fsm;
1359	break;
1360	}
1361
1362	if ( !r_itlb_acc_dcache_req ) // TLB access bits write response
1363	{
1364	if ( !r_icache_inval_tlb_rsp ) // TLB access bits write response and no invalidation
1365	{
1366	if ( r_dcache_rsp_itlb_error )
1367	{
1368	r_icache_error_type = MMU_READ_PT1_ILLEGAL_ACCESS;
1369	r_icache_bad_vaddr = r_icache_vaddr_req.read();
1370	r_icache_fsm = ICACHE_ERROR;
1371	}
1372	else if ( r_itlb_acc_redo_req )
1373	{
1374	r_itlb_acc_redo_req = false;
1375	r_icache_fsm = ICACHE_IDLE;
1376	}
1377	else
1378	{
1379	r_icache_fsm = ICACHE_TLB1_UPDT;
1380	}
1381	}
1382	else // TLB ET write response and invalidation
1383	{
1384	if ( r_dcache_rsp_itlb_error )
1385	{
1386	r_icache_inval_tlb_rsp = false;
1387	r_icache_error_type = MMU_READ_PT1_ILLEGAL_ACCESS;
1388	r_icache_bad_vaddr = r_icache_vaddr_req.read();
1389	r_icache_fsm = ICACHE_ERROR;
1390	}
1391	else if ( r_itlb_acc_redo_req )
1392	{
1393	r_itlb_acc_redo_req = false;
1394	r_icache_inval_tlb_rsp = false;
1395	r_icache_fsm = ICACHE_IDLE;
1396	}
1397	else
1398	{
1399	r_icache_inval_tlb_rsp = false;
1400	r_icache_fsm = ICACHE_IDLE;
1401	}
1402	}
1403	}
1404	break;
1405	}
1406	//////////////////////
1407	case ICACHE_TLB1_UPDT:
1408	{
1409	if ( ireq.valid ) m_cost_ins_tlb_miss_frz++;
1410
1411	// external cache invalidate request
1412	if ( r_tgt_icache_req )
1413	{
1414	r_icache_fsm = ICACHE_CC_INVAL;
1415	r_icache_fsm_save = r_icache_fsm;
1416	break;
1417	}
1418
1419	// external tlb invalidate request
1420	if ( r_dcache_itlb_inval_req )
1421	{
1422	r_itlb_inval_req = true;
1423	r_icache_fsm = ICACHE_TLB_CC_INVAL;
1424	r_icache_fsm_save = r_icache_fsm;
1425	break;
1426	}
1427
1428	// TLB update and invalidate different PTE
1429	if ( !r_dcache_itlb_cleanup_req && !r_icache_inval_tlb_rsp )
1430	{
1431	paddr_t victim_index = 0;
1432	r_dcache_itlb_cleanup_req = icache_tlb.update(r_icache_pte_update,r_icache_vaddr_req.read(),(r_icache_paddr_save.read() >> (uint32_log2(m_dcache_words)+2)),&victim_index);
1433	r_dcache_itlb_cleanup_line = victim_index;
1434	m_cpt_cc_cleanup_ins++;
1435	r_icache_fsm = ICACHE_IDLE;
1436	}
1437
1438	// TLB update and invalidate same PTE
1439	if ( r_icache_inval_tlb_rsp )
1440	{
1441	r_icache_inval_tlb_rsp = false;
1442	r_icache_fsm = ICACHE_IDLE;
1443	}
1444	break;
1445	}
1446	/////////////////////
1447	case ICACHE_TLB2_READ:
1448	{
1449	if ( ireq.valid ) m_cost_ins_tlb_miss_frz++;
1450
1451	// external cache invalidate request
1452	if ( r_tgt_icache_req )
1453	{
1454	r_icache_fsm = ICACHE_CC_INVAL;
1455	r_icache_fsm_save = r_icache_fsm;
1456	break;
1457	}
1458
1459	// external tlb invalidate request
1460	if ( r_dcache_itlb_inval_req )
1461	{
1462	r_itlb_inval_req = true;
1463	r_icache_fsm = ICACHE_TLB_CC_INVAL;
1464	r_icache_fsm_save = r_icache_fsm;
1465	break;
1466	}
1467
1468	if ( !r_itlb_read_dcache_req ) // TLB miss read response
1469	{
1470	if (r_icache_vaddr_req.read() != ireq.addr \|\| !ireq.valid)
1471	{
1472	/* request modified, drop response and restart */
1473	r_icache_ptba_ok = false;
1474	if ( r_icache_inval_tlb_rsp ) r_icache_inval_tlb_rsp = false;
1475	if ( r_dcache_rsp_itlb_error ) r_dcache_rsp_itlb_error = false;
1476	r_icache_fsm = ICACHE_IDLE;
1477	break;
1478	}
1479
1480	if ( !r_icache_inval_tlb_rsp ) // TLB miss read response
1481	{
1482	if ( !r_dcache_rsp_itlb_error ) // VCI response ok
1483	{
1484	if ( !(r_dcache_rsp_itlb_miss >> PTE_V_SHIFT) ) // unmapped
1485	{
1486	r_icache_error_type = MMU_READ_PT2_UNMAPPED;
1487	r_icache_bad_vaddr = r_icache_vaddr_req.read();
1488	r_icache_fsm = ICACHE_ERROR;
1489	}
1490	else
1491	{
1492	if ( (m_srcid_rw >> 4) == ((r_dcache_rsp_itlb_miss & ((1<<(m_paddr_nbits - PAGE_M_NBITS))-1)) >> (m_paddr_nbits - PAGE_M_NBITS -10)) ) // local
1493	{
1494	if ( (r_dcache_rsp_itlb_miss & PTE_L_MASK ) >> PTE_L_SHIFT ) // L bit is set
1495	{
1496	r_icache_fsm = ICACHE_TLB2_UPDT;
1497	r_icache_pte_update = r_dcache_rsp_itlb_miss;
1498	}
1499	else
1500	{
1501	r_icache_pte_update = r_dcache_rsp_itlb_miss \| PTE_L_MASK;
1502	r_itlb_acc_dcache_req = true;
1503	r_icache_fsm = ICACHE_TLB2_WRITE;
1504	m_cpt_ins_tlb_update_acc++;
1505	m_cost_ins_tlb_update_acc_frz++;
1506	}
1507	}
1508	else // remotely
1509	{
1510	if ( (r_dcache_rsp_itlb_miss & PTE_R_MASK ) >> PTE_R_SHIFT ) // R bit is set
1511	{
1512	r_icache_fsm = ICACHE_TLB2_UPDT;
1513	r_icache_pte_update = r_dcache_rsp_itlb_miss;
1514	}
1515	else
1516	{
1517	r_icache_pte_update = r_dcache_rsp_itlb_miss \| PTE_R_MASK;
1518	r_itlb_acc_dcache_req = true;
1519	r_icache_fsm = ICACHE_TLB2_WRITE;
1520	m_cpt_ins_tlb_update_acc++;
1521	m_cost_ins_tlb_update_acc_frz++;
1522	}
1523	}
1524	}
1525	}
1526	else // VCI response error
1527	{
1528	r_icache_error_type = MMU_READ_PT2_ILLEGAL_ACCESS;
1529	r_icache_bad_vaddr = r_icache_vaddr_req.read();
1530	r_icache_fsm = ICACHE_ERROR;
1531	}
1532	}
1533	else // TLB miss read response and invalidation
1534	{
1535	if ( r_dcache_rsp_itlb_error )
1536	{
1537	r_icache_inval_tlb_rsp = false;
1538	r_icache_error_type = MMU_READ_PT2_ILLEGAL_ACCESS;
1539	r_icache_bad_vaddr = r_icache_vaddr_req.read();
1540	r_icache_fsm = ICACHE_ERROR;
1541	}
1542	else
1543	{
1544	r_icache_inval_tlb_rsp = false;
1545	r_icache_fsm = ICACHE_IDLE;
1546	}
1547	}
1548	}
1549	break;
1550	}
1551	/////////////////////////
1552	case ICACHE_TLB2_WRITE:
1553	{
1554	if ( ireq.valid ) m_cost_ins_tlb_miss_frz++;
1555	m_cost_ins_tlb_update_acc_frz++;
1556
1557	// external cache invalidate request
1558	if ( r_tgt_icache_req )
1559	{
1560	r_icache_fsm = ICACHE_CC_INVAL;
1561	r_icache_fsm_save = r_icache_fsm;
1562	break;
1563	}
1564	// external tlb invalidate request
1565	if ( r_dcache_itlb_inval_req )
1566	{
1567	r_itlb_inval_req = true;
1568	r_icache_fsm = ICACHE_TLB_CC_INVAL;
1569	r_icache_fsm_save = r_icache_fsm;
1570	break;
1571	}
1572
1573	if ( !r_itlb_acc_dcache_req ) // TLB access bits write response
1574	{
1575	if ( !r_icache_inval_tlb_rsp ) // TLB access bits write response
1576	{
1577	if ( r_dcache_rsp_itlb_error )
1578	{
1579	r_icache_error_type = MMU_READ_PT2_ILLEGAL_ACCESS;
1580	r_icache_bad_vaddr = r_icache_vaddr_req.read();
1581	r_icache_fsm = ICACHE_ERROR;
1582	}
1583	else if ( r_itlb_acc_redo_req )
1584	{
1585	r_itlb_acc_redo_req = false;
1586	r_icache_fsm = ICACHE_IDLE;
1587	}
1588	else
1589	{
1590	r_icache_fsm = ICACHE_TLB2_UPDT;
1591	}
1592	}
1593	else // TLB ET write response and invalidation
1594	{
1595	if ( r_dcache_rsp_itlb_error )
1596	{
1597	r_icache_inval_tlb_rsp = false;
1598	r_icache_error_type = MMU_READ_PT2_ILLEGAL_ACCESS;
1599	r_icache_bad_vaddr = r_icache_vaddr_req.read();
1600	r_icache_fsm = ICACHE_ERROR;
1601	}
1602	else if ( r_itlb_acc_redo_req )
1603	{
1604	r_itlb_acc_redo_req = false;
1605	r_icache_inval_tlb_rsp = false;
1606	r_icache_fsm = ICACHE_IDLE;
1607	}
1608	else
1609	{
1610	r_icache_inval_tlb_rsp = false;
1611	r_icache_fsm = ICACHE_IDLE;
1612	}
1613	}
1614	}
1615	break;
1616	}
1617	/////////////////////
1618	case ICACHE_TLB2_UPDT:
1619	{
1620	if ( ireq.valid ) m_cost_ins_tlb_miss_frz++;
1621
1622	// external cache invalidate request
1623	if ( r_tgt_icache_req )
1624	{
1625	r_icache_fsm = ICACHE_CC_INVAL;
1626	r_icache_fsm_save = r_icache_fsm;
1627	break;
1628	}
1629
1630	// external tlb invalidate request
1631	if ( r_dcache_itlb_inval_req )
1632	{
1633	r_itlb_inval_req = true;
1634	r_icache_fsm = ICACHE_TLB_CC_INVAL;
1635	r_icache_fsm_save = r_icache_fsm;
1636	break;
1637	}
1638
1639	// TLB update and invalidate different PTE
1640	if ( !r_dcache_itlb_cleanup_req && !r_icache_inval_tlb_rsp )
1641	{
1642	paddr_t victim_index = 0;
1643	r_dcache_itlb_cleanup_req = icache_tlb.update(r_icache_pte_update,r_dcache_rsp_itlb_ppn,r_icache_vaddr_req.read(),(r_icache_paddr_save.read() >> (uint32_log2(m_dcache_words)+2)),&victim_index);
1644	r_dcache_itlb_cleanup_line = victim_index;
1645	m_cpt_cc_cleanup_ins++;
1646	r_icache_fsm = ICACHE_IDLE;
1647	}
1648	// TLB update and invalidate same PTE
1649	if ( r_icache_inval_tlb_rsp )
1650	{
1651	r_icache_inval_tlb_rsp = false;
1652	r_icache_fsm = ICACHE_IDLE;
1653	}
1654	break;
1655	}
1656	/////////////////////////////
1657	case ICACHE_SW_FLUSH:
1658	{
1659	size_t way = r_icache_way;
1660	size_t set = r_icache_set;
1661	bool clean = false;
1662
1663	// 4K page size TLB flush leads to cleanup req to data cache
1664	if ( !r_dcache_itlb_cleanup_req ) // last cleanup finish
1665	{
1666	paddr_t victim_index = 0;
1667	for ( ; way < m_itlb_ways; way++)
1668	{
1669	for ( ; set < m_itlb_sets; set++)
1670	{
1671	if(icache_tlb.checkcleanup(way, set, &victim_index))
1672	{
1673	clean = true;
1674	r_dcache_itlb_cleanup_req = true;
1675	r_dcache_itlb_cleanup_line = victim_index;
1676	r_icache_way = way + ((set+1)/m_itlb_sets);
1677	r_icache_set = (set+1) % m_itlb_sets;
1678	break;
1679	}
1680	}
1681	if (clean) break;
1682	set = 0;
1683	}
1684
1685	if (way == m_itlb_ways)
1686	{
1687	r_dcache_xtn_req = false;
1688	r_itlb_translation_valid = false;
1689	r_icache_ptba_ok = false;
1690	r_icache_fsm = ICACHE_IDLE;
1691	break;
1692	}
1693	}
1694	break;
1695	}
1696	/////////////////////
1697	case ICACHE_TLB_FLUSH:
1698	{
1699	// data cache flush leads to ins tlb flush, flush all tlb entry
1700	icache_tlb.flush(true); // global entries are invalidated
1701	r_dcache_xtn_req = false;
1702	r_itlb_translation_valid = false;
1703	r_icache_ptba_ok = false;
1704	r_icache_fsm = ICACHE_IDLE;
1705	break;
1706	}
1707	////////////////////////
1708	case ICACHE_CACHE_FLUSH:
1709	{
1710	// external cache invalidate request
1711	if ( r_tgt_icache_req )
1712	{
1713	r_icache_fsm = ICACHE_CC_INVAL;
1714	r_icache_fsm_save = r_icache_fsm;
1715	break;
1716	}
1717
1718	size_t way = r_icache_way;
1719	size_t set = r_icache_set;
1720	bool clean = false;
1721
1722	// cache flush and send cleanup to external
1723	if ( !r_icache_cleanup_req )
1724	{
1725	paddr_t victim_index = 0;
1726	for ( ; way < m_icache_ways; way++ )
1727	{
1728	for ( ; set < m_icache_sets; set++ )
1729	{
1730	if ( r_icache.flush(way, set, &victim_index) )
1731	{
1732	clean = true;
1733	r_icache_cleanup_req = true;
1734	r_icache_cleanup_line = victim_index;
1735	m_cpt_cc_cleanup_ins++;
1736	r_icache_way = way + ((set+1)/m_icache_sets);
1737	r_icache_set = (set+1) % m_icache_sets;
1738	break;
1739	}
1740	}
1741	if (clean) break;
1742	set = 0;
1743	}
1744	if (way == m_icache_ways)
1745	{
1746	r_dcache_xtn_req = false;
1747	r_icache_fsm = ICACHE_IDLE;
1748	break;
1749	}
1750	}
1751	break;
1752	}
1753	/////////////////////
1754	case ICACHE_TLB_INVAL:
1755	{
1756	paddr_t victim_index = 0;
1757
1758	if ( !r_dcache_itlb_cleanup_req )
1759	{
1760	r_dcache_itlb_cleanup_req = icache_tlb.inval(r_dcache_wdata_save, &victim_index);
1761	r_dcache_itlb_cleanup_line = victim_index;
1762	m_cpt_cc_cleanup_ins++;
1763	r_dcache_xtn_req = false;
1764	r_itlb_translation_valid = false;
1765	r_icache_ptba_ok = false;
1766	r_icache_fsm = ICACHE_IDLE;
1767	}
1768	break;
1769	}
1770	////////////////////////
1771	case ICACHE_CACHE_INVAL:
1772	{
1773	// external cache invalidate request
1774	if ( r_tgt_icache_req )
1775	{
1776	r_icache_fsm = ICACHE_CC_INVAL;
1777	r_icache_fsm_save = r_icache_fsm;
1778	break;
1779	}
1780
1781	paddr_t ipaddr = 0;
1782	bool icache_hit_t = false;
1783
1784	if ( !r_icache_cleanup_req )
1785	{
1786	if ( r_mmu_mode.read() & INS_TLB_MASK )
1787	{
1788	icache_hit_t = icache_tlb.translate(r_dcache_wdata_save, &ipaddr);
1789	}
1790	else
1791	{
1792	ipaddr = (paddr_t)r_dcache_wdata_save;
1793	icache_hit_t = true;
1794	}
1795	if ( icache_hit_t )
1796	{
1797	// invalidate and cleanup if necessary
1798	r_icache_cleanup_req = r_icache.inval(ipaddr);
1799	r_icache_cleanup_line = ipaddr >> (uint32_log2(m_icache_words) + 2);
1800	m_cpt_cc_cleanup_ins++;
1801	}
1802	r_dcache_xtn_req = false;
1803	r_icache_fsm = ICACHE_IDLE;
1804	}
1805	break;
1806	}
1807	////////////////////////
1808	case ICACHE_CACHE_INVAL_PA:
1809	{
1810	// external cache invalidate request
1811	if ( r_tgt_icache_req )
1812	{
1813	r_icache_fsm = ICACHE_CC_INVAL;
1814	r_icache_fsm_save = r_icache_fsm;
1815	break;
1816	}
1817
1818	paddr_t ipaddr = (paddr_t)r_mmu_word_hi.read() << 32 \| r_mmu_word_lo.read();
1819
1820	if ( !r_icache_cleanup_req )
1821	{
1822	// invalidate and cleanup if necessary
1823	r_icache_cleanup_req = r_icache.inval(ipaddr);
1824	r_icache_cleanup_line = ipaddr >> (uint32_log2(m_icache_words) + 2);
1825	m_cpt_cc_cleanup_ins++;
1826	r_dcache_xtn_req = false;
1827	r_icache_fsm = ICACHE_IDLE;
1828	}
1829	break;
1830	}
1831	///////////////////////
1832	case ICACHE_MISS_WAIT:
1833	{
1834	m_cost_ins_miss_frz++;
1835
1836	// external cache invalidate request
1837	if ( r_tgt_icache_req )
1838	{
1839	r_icache_fsm = ICACHE_CC_INVAL;
1840	r_icache_fsm_save = r_icache_fsm;
1841	break;
1842	}
1843
1844	// external tlb invalidate request
1845	if ( r_dcache_itlb_inval_req )
1846	{
1847	r_itlb_inval_req = true;
1848	r_icache_fsm = ICACHE_TLB_CC_INVAL;
1849	r_icache_fsm_save = r_icache_fsm;
1850	break;
1851	}
1852
1853	if ( !r_icache_miss_req )
1854	{
1855	if ( r_vci_rsp_ins_error )
1856	{
1857	r_icache_error_type = MMU_READ_DATA_ILLEGAL_ACCESS;
1858	r_icache_bad_vaddr = ireq.addr;
1859	r_icache_fsm = ICACHE_ERROR;
1860
1861	if ( r_icache_inval_tlb_rsp ) r_icache_inval_tlb_rsp = false;
1862	if ( r_icache_inval_rsp ) r_icache_inval_rsp = false;
1863	break;
1864	}
1865
1866	if ( r_icache_inval_tlb_rsp ) // Miss read response and tlb invalidation
1867	{
1868	if ( r_icache_cleanup_req ) break;
1869	r_icache_cleanup_req = true;
1870	r_icache_cleanup_line = r_icache_paddr_save.read() >> (uint32_log2(m_icache_words) + 2);
1871	m_cpt_cc_cleanup_ins++;
1872	r_icache_fsm = ICACHE_IDLE;
1873	r_icache_inval_tlb_rsp = false;
1874	if ( r_icache_inval_rsp ) r_icache_inval_rsp = false;
1875	break;
1876	}
1877
1878	if ( r_icache_inval_rsp ) // Miss read response and tlb invalidation
1879	{
1880	if ( r_icache_cleanup_req ) break;
1881	r_icache_cleanup_req = true;
1882	r_icache_cleanup_line = r_icache_paddr_save.read() >> (uint32_log2(m_icache_words) + 2);
1883	m_cpt_cc_cleanup_ins++;
1884	r_icache_fsm = ICACHE_IDLE;
1885	r_icache_inval_rsp = false;
1886	break;
1887	}
1888	r_icache_fsm = ICACHE_MISS_UPDT;
1889	}
1890	break;
1891	}
1892	////////////////////
1893	case ICACHE_UNC_WAIT:
1894	{
1895	// external cache invalidate request
1896	if ( r_tgt_icache_req )
1897	{
1898	r_icache_fsm = ICACHE_CC_INVAL;
1899	r_icache_fsm_save = r_icache_fsm;
1900	break;
1901	}
1902
1903	// external tlb invalidate request
1904	if ( r_dcache_itlb_inval_req )
1905	{
1906	r_itlb_inval_req = true;
1907	r_icache_fsm = ICACHE_TLB_CC_INVAL;
1908	r_icache_fsm_save = r_icache_fsm;
1909	break;
1910	}
1911
1912	if ( !r_icache_unc_req )
1913	{
1914	if ( r_vci_rsp_ins_error )
1915	{
1916	r_icache_error_type = MMU_READ_DATA_ILLEGAL_ACCESS;
1917	r_icache_bad_vaddr = ireq.addr;
1918	r_icache_fsm = ICACHE_ERROR;
1919
1920	if ( r_icache_inval_tlb_rsp ) r_icache_inval_tlb_rsp = false;
1921	//if ( r_icache_inval_rsp ) r_icache_inval_rsp = false;
1922	break;
1923	}
1924
1925	if ( r_icache_inval_tlb_rsp ) // Miss read response and tlb invalidation
1926	{
1927	r_icache_inval_tlb_rsp = false;
1928	r_icache_fsm = ICACHE_IDLE;
1929	break;
1930	}
1931
1932	// Miss read response and no invalidation
1933	r_icache_buf_unc_valid = true;
1934	r_icache_fsm = ICACHE_IDLE;
1935	}
1936	break;
1937	}
1938	//////////////////////
1939	case ICACHE_MISS_UPDT:
1940	{
1941	m_cost_ins_miss_frz++;
1942
1943	// external cache invalidate request
1944	if ( r_tgt_icache_req )
1945	{
1946	r_icache_fsm = ICACHE_CC_INVAL;
1947	r_icache_fsm_save = r_icache_fsm;
1948	break;
1949	}
1950
1951	// external tlb invalidate request
1952	if ( r_dcache_itlb_inval_req )
1953	{
1954	r_itlb_inval_req = true;
1955	r_icache_fsm = ICACHE_TLB_CC_INVAL;
1956	r_icache_fsm_save = r_icache_fsm;
1957	break;
1958	}
1959
1960	if ( r_icache_inval_tlb_rsp ) // tlb invalidation
1961	{
1962	if ( r_icache_cleanup_req ) break;
1963	r_icache_cleanup_req = true;
1964	r_icache_cleanup_line = r_icache_paddr_save.read() >> (uint32_log2(m_icache_words) + 2);
1965	m_cpt_cc_cleanup_ins++;
1966	r_icache_inval_tlb_rsp = false;
1967	if ( r_icache_inval_rsp ) r_icache_inval_rsp = false;
1968	r_icache_fsm = ICACHE_IDLE;
1969	break;
1970	}
1971
1972	if ( !r_icache_cleanup_req ) // Miss update and no invalidation
1973	{
1974	if ( r_icache_inval_rsp ) // invalidation
1975	{
1976	r_icache_cleanup_req = true;
1977	r_icache_cleanup_line = r_icache_paddr_save.read() >> (uint32_log2(m_icache_words) + 2);
1978	m_cpt_cc_cleanup_ins++;
1979	r_icache_fsm = ICACHE_IDLE;
1980	r_icache_inval_rsp = false;
1981	}
1982	else
1983	{
1984	data_t* buf = r_icache_miss_buf;
1985	paddr_t victim_index = 0;
1986	m_cpt_icache_dir_write++;
1987	m_cpt_icache_data_write++;
1988
1989	r_icache_cleanup_req = r_icache.update(r_icache_paddr_save.read(), buf, &victim_index);
1990	r_icache_cleanup_line = victim_index; m_cpt_cc_cleanup_ins++;
1991	r_icache_fsm = ICACHE_IDLE;
1992	}
1993	}
1994	break;
1995	}
1996	///////////////////
1997	case ICACHE_ERROR:
1998	{
1999	r_vci_rsp_ins_error = false;
2000	r_dcache_rsp_itlb_error = false;
2001	irsp.valid = true;
2002	irsp.error = true;
2003	irsp.instruction = 0;
2004	r_icache_fsm = ICACHE_IDLE;
2005	break;
2006	}
2007	/////////////////////
2008	case ICACHE_CC_INVAL:
2009	{
2010	m_cpt_icache_dir_read += m_icache_ways;
2011	/* activity counter */
2012	if ( (( r_icache_fsm_save == ICACHE_BIS ) \|\|( r_icache_fsm_save == ICACHE_MISS_WAIT ) \|\| ( r_icache_fsm_save == ICACHE_MISS_UPDT ) ) && ( ireq.valid ) )
2013	{
2014	m_cost_ins_miss_frz++;
2015	}
2016	if( (( r_icache_fsm_save == ICACHE_TLB1_READ ) \|\| ( r_icache_fsm_save == ICACHE_TLB2_READ ) \|\|
2017	( r_icache_fsm_save == ICACHE_TLB1_WRITE ) \|\| ( r_icache_fsm_save == ICACHE_TLB2_WRITE ) \|\|
2018	( r_icache_fsm_save == ICACHE_TLB1_UPDT ) \|\| ( r_icache_fsm_save == ICACHE_TLB2_UPDT )) && (ireq.valid) )
2019	{
2020	m_cost_ins_tlb_miss_frz++;
2021	}
2022
2023	// invalidate cache
2024	if( (( r_icache_fsm_save == ICACHE_MISS_WAIT ) \|\| ( r_icache_fsm_save == ICACHE_MISS_UPDT ) /*\|\|
2025	( r_icache_fsm_save == ICACHE_UNC_WAIT )*/ ) &&
2026	((r_icache_paddr_save.read() & ~((m_icache_words<<2)-1)) == (r_tgt_addr.read() & ~((m_icache_words<<2)-1))) )
2027	{
2028	r_icache_inval_rsp = true;
2029	r_tgt_icache_rsp = false;
2030	}
2031	else
2032	{
2033	r_tgt_icache_rsp = r_icache.inval(r_tgt_addr.read());
2034	}
2035	r_tgt_icache_req = false;
2036	r_icache_fsm = r_icache_fsm_save;
2037	break;
2038	}
2039	/////////////////////////
2040	case ICACHE_TLB_CC_INVAL:
2041	{
2042	/* activity counter */
2043	if ( (( r_icache_fsm_save == ICACHE_BIS ) \|\|( r_icache_fsm_save == ICACHE_MISS_WAIT ) \|\| ( r_icache_fsm_save == ICACHE_MISS_UPDT ) ) && ( ireq.valid ) )
2044	{
2045	m_cost_ins_miss_frz++;
2046	}
2047	if( (( r_icache_fsm_save == ICACHE_TLB1_READ ) \|\| ( r_icache_fsm_save == ICACHE_TLB2_READ ) \|\|
2048	( r_icache_fsm_save == ICACHE_TLB1_WRITE ) \|\| ( r_icache_fsm_save == ICACHE_TLB2_WRITE ) \|\|
2049	( r_icache_fsm_save == ICACHE_TLB1_UPDT ) \|\| ( r_icache_fsm_save == ICACHE_TLB2_UPDT )) && (ireq.valid) )
2050	{
2051	m_cost_ins_tlb_miss_frz++;
2052	}
2053
2054	if ( r_itlb_inval_req ) break;
2055	// invalidate cache
2056	if( (( r_icache_fsm_save == ICACHE_TLB1_READ ) \|\| ( r_icache_fsm_save == ICACHE_TLB2_READ ) \|\|
2057	( r_icache_fsm_save == ICACHE_TLB1_WRITE )\|\| ( r_icache_fsm_save == ICACHE_TLB2_WRITE ) \|\|
2058	( r_icache_fsm_save == ICACHE_TLB1_UPDT ) \|\| ( r_icache_fsm_save == ICACHE_TLB2_UPDT )) &&
2059	(((r_icache_paddr_save.read() & ~((m_icache_words<<2)-1)) >> (uint32_log2(m_icache_words) + 2) ) == r_dcache_itlb_inval_line.read()) )
2060	{
2061	r_icache_inval_tlb_rsp = true;
2062	}
2063	else if (((r_icache_fsm_save == ICACHE_BIS)\|\|(r_icache_fsm_save == ICACHE_MISS_WAIT) \|\|
2064	/* (r_icache_fsm_save == ICACHE_UNC_WAIT)\|\|*/(r_icache_fsm_save == ICACHE_MISS_UPDT)) &&
2065	(r_icache_tlb_nline.read() == r_dcache_itlb_inval_line.read()))
2066	{
2067	r_icache_inval_tlb_rsp = true;
2068	}
2069	r_dcache_itlb_inval_req = false;
2070	r_itlb_translation_valid = false;
2071	r_icache_ptba_ok = false;
2072	r_icache_fsm = r_icache_fsm_save;
2073	break;
2074	}
2075	} // end switch r_icache_fsm
2076
2077	#ifdef SOCLIB_MODULE_DEBUG
2078	std::cout << name() << " Instruction Response: " << irsp << std::endl;
2079	#endif
2080	////////////////////////////////////////////////////////////////////////////////////
2081	// INVAL ITLB CHECK FSM
2082	////////////////////////////////////////////////////////////////////////////////////////
2083	switch(r_inval_itlb_fsm) {
2084	/////////////////////
2085	case INVAL_ITLB_IDLE:
2086	{
2087	if ( r_itlb_inval_req )
2088	{
2089	r_ccinval_itlb_way = 0;
2090	r_ccinval_itlb_set = 0;
2091	r_inval_itlb_fsm = INVAL_ITLB_CHECK;
2092	m_cost_ins_tlb_inval_frz++;
2093	}
2094	break;
2095	}
2096	////////////////////////////
2097	case INVAL_ITLB_CHECK:
2098	{
2099	m_cost_ins_tlb_inval_frz++;
2100
2101	size_t way = r_ccinval_itlb_way;
2102	size_t set = r_ccinval_itlb_set;
2103	bool end = false;
2104	bool tlb_hit = icache_tlb.cccheck(r_dcache_itlb_inval_line.read(), way, set, &way, &set, &end);
2105
2106	if ( tlb_hit )
2107	{
2108	r_ccinval_itlb_way = way;
2109	r_ccinval_itlb_set = set;
2110	r_itlb_cc_check_end = end;
2111	r_inval_itlb_fsm = INVAL_ITLB_INVAL;
2112	m_cpt_ins_tlb_inval++;
2113	}
2114	else
2115	{
2116	r_inval_itlb_fsm = INVAL_ITLB_CLEAR;
2117	}
2118	break;
2119	}
2120	/////////////////////////
2121	case INVAL_ITLB_INVAL:
2122	{
2123	m_cost_ins_tlb_inval_frz++;
2124
2125	icache_tlb.ccinval(r_ccinval_itlb_way, r_ccinval_itlb_set);
2126
2127	if ( !r_itlb_cc_check_end )
2128	{
2129	r_inval_itlb_fsm = INVAL_ITLB_CHECK;
2130	}
2131	else
2132	{
2133	r_inval_itlb_fsm = INVAL_ITLB_CLEAR;
2134	}
2135	break;
2136	}
2137	////////////////////
2138	case INVAL_ITLB_CLEAR:
2139	{
2140	r_itlb_inval_req = false;
2141	r_itlb_cc_check_end = false;
2142	r_ccinval_itlb_way = 0;
2143	r_ccinval_itlb_set = 0;
2144	r_inval_itlb_fsm = INVAL_ITLB_IDLE;
2145	m_cost_ins_tlb_inval_frz++;
2146	break;
2147	}
2148	} // end switch r_inval_itlb_fsm
2149
2150	////////////////////////////////////////////////////////////////////////////////////
2151	// DCACHE FSM
2152	//
2153	// Both the Cacheability Table, and the MMU cached bit are used to define
2154	// the cacheability.
2155	//
2156	// There is 14 mutually exclusive conditions to exit the IDLE state.
2157	// Seven configurations corresponding to an XTN request from processor:
2158	// - Context switch => CTXT_SWITCH state
2159	// - Flush dcache => DCACHE_FLUSH state
2160	// - Flush icache => ICACHE_FLUSH state
2161	// - Invalidate a dtlb entry => DTLB_INVAL state
2162	// - Invalidate a itlb entry => ITLB_INVAL state
2163	// - Invalidate a dcache line => DCACHE_INVAL state
2164	// - Invalidate a icache line => ICACHE_INVAL state
2165	// Seven configurations corresponding to various read miss or write requests:
2166	// - TLB miss(in case hit_p miss) => TLB1_READ state
2167	// - TLB miss(in case hit_p hit) => TLB2_READ state
2168	// - Hit in TLB but VPN changed => BIS state
2169	// - Cached read miss => MISS_REQ state
2170	// - Uncache read miss => UNC_REQ state
2171	// - Write hit => WRITE_UPDT state
2172	// - Write miss => WRITE_REQ
2173	//
2174	// The r_vci_rsp_data_error flip-flop is set by the VCI_RSP controller and reset
2175	// by DCACHE-FSM when its state is in DCACHE_ERROR.
2176	//---------------------------------------------------------------------
2177	// Data TLB:
2178	//
2179	// - int ET (00: unmapped; 01: unused or PTD)
2180	// (10: PTE new; 11: PTE old )
2181	// - bool cachable (cached bit)
2182	// - bool writable (writable bit)
2183	// - bool executable (** not used alwayse false)
2184	// - bool user (access in user mode allowed)
2185	// - bool global (PTE not invalidated by a TLB flush)
2186	// - bool dirty (page has been modified)
2187	// - uint32_t vpn (virtual page number)
2188	// - uint32_t ppn (physical page number)
2189	////////////////////////////////////////////////////////////////////////////////////////
2190
2191	switch (r_dcache_fsm) {
2192	//////////////////////
2193	case DCACHE_WRITE_REQ:
2194	{
2195	// external cache invalidate request
2196	if ( r_tgt_dcache_req )
2197	{
2198	r_dcache_fsm = DCACHE_CC_CHECK;
2199	r_dcache_fsm_save = r_dcache_fsm;
2200	break;
2201	}
2202
2203	// try to post the write request in the write buffer
2204	if ( !r_dcache_write_req ) // no previous write transaction
2205	{
2206	if ( r_wbuf.wok(r_dcache_paddr_save) ) // write request in the same cache line
2207	{
2208	r_wbuf.write(r_dcache_paddr_save.read(), r_dcache_be_save.read(), r_dcache_wdata_save);
2209	// closing the write packet if uncached
2210	if ( !r_dcache_cached_save )
2211	{
2212	r_dcache_write_req = true;
2213	}
2214	}
2215	else
2216	{ // close the write packet if write request not in the same cache line
2217	r_dcache_write_req = true;
2218	m_cost_write_frz++;
2219	break; // posting not possible : stay in DCACHE_WRITEREQ state
2220	}
2221	}
2222	else // previous write transaction not completed
2223	{
2224	m_cost_write_frz++;
2225	break; // posting not possible : stay in DCACHE_WRITEREQ state
2226	}
2227
2228	// close the write packet if the next processor request is not a write
2229	if ( !dreq.valid \|\| (dreq.type != iss_t::DATA_WRITE))
2230	{
2231	r_dcache_write_req = true;
2232	}
2233
2234	// The next state and the processor request parameters are computed
2235	// as in the DCACHE_IDLE state (see below ...)
2236	}
2237	/////////////////
2238	case DCACHE_IDLE:
2239	{
2240	// external cache invalidate request
2241	if ( r_tgt_dcache_req )
2242	{
2243	r_dcache_fsm = DCACHE_CC_CHECK;
2244	r_dcache_fsm_save = DCACHE_IDLE;
2245	break;
2246	}
2247
2248	// ins tlb cleanup
2249	if ( r_dcache_itlb_cleanup_req )
2250	{
2251	r_dcache_fsm = DCACHE_ITLB_CLEANUP;
2252	break;
2253	}
2254	// ins tlb miss
2255	if ( r_itlb_read_dcache_req )
2256	{
2257	if ( dreq.valid ) m_cost_ins_tlb_occup_cache_frz++;
2258	data_t rsp_itlb_miss;
2259	data_t rsp_itlb_ppn;
2260
2261	bool itlb_hit_dcache = r_dcache.read(r_icache_paddr_save, &rsp_itlb_miss);
2262	if ( r_itlb_k_read_dcache && itlb_hit_dcache )
2263	{
2264	r_itlb_k_read_dcache = false;
2265	bool itlb_hit_ppn = r_dcache.read(r_icache_paddr_save.read()+4, &rsp_itlb_ppn);
2266	assert(itlb_hit_ppn && "Address of pte[64-32] and pte[31-0] should be successive");
2267	}
2268
2269	m_cpt_dcache_data_read += m_dcache_ways;
2270	m_cpt_dcache_dir_read += m_dcache_ways;
2271
2272	if ( itlb_hit_dcache ) // ins TLB request hits in data cache
2273	{
2274	if (!((rsp_itlb_miss & PTE_T_MASK ) >> PTE_T_SHIFT)) m_cpt_ins_tlb_hit_dcache++;
2275	r_dcache_rsp_itlb_miss = rsp_itlb_miss;
2276	r_dcache_rsp_itlb_ppn = rsp_itlb_ppn;
2277	r_itlb_read_dcache_req = false;
2278	r_dcache_fsm = DCACHE_IDLE;
2279
2280	// set TLB bit if it's a PTE
2281	if ( !((rsp_itlb_miss & PTE_T_MASK ) >> PTE_T_SHIFT) )
2282	{
2283	bool set_hit = r_dcache.setinbit(r_icache_paddr_save, r_dcache_in_itlb, true);
2284	assert(set_hit && "D$ IDLE ITLB set hit error");
2285	}
2286	}
2287	else // ins TLB request miss in data cache
2288	{
2289	r_dcache_itlb_read_req = true;
2290	r_dcache_fsm = DCACHE_ITLB_READ;
2291	}
2292	}
2293	else if ( r_itlb_acc_dcache_req ) // ins tlb write access bit
2294	{
2295	data_t rsp_itlb_miss;
2296	bool itlb_hit_dcache = r_dcache.read(r_icache_paddr_save, &rsp_itlb_miss);
2297	if ( itlb_hit_dcache )
2298	{
2299	r_dcache_itlb_ll_acc_req = true;
2300	r_dcache_fsm = DCACHE_ITLB_LL_WAIT;
2301	m_cpt_dcache_data_write++;
2302	}
2303	else
2304	{
2305	r_itlb_acc_dcache_req = false;
2306	r_itlb_acc_redo_req = true;
2307	r_dcache_fsm = DCACHE_IDLE;
2308	}
2309	}
2310	else if (dreq.valid)
2311	{
2312	pte_info_t dcache_pte_info;
2313	int xtn_opcod = (int)dreq.addr/4;
2314	paddr_t tlb_dpaddr = 0; // physical address obtained from TLB
2315	paddr_t spc_dpaddr = 0; // physical adress obtained from PPN_save (speculative)
2316	bool dcache_hit_t = false; // hit on 4Kilo TLB
2317	bool dcache_hit_x = false; // VPN unmodified (can use spc_dpaddr)
2318	bool dcache_hit_p = false; // PTP unmodified (can skip first level page table walk)
2319	bool dcache_hit_c = false; // Cache hit
2320	bool dcache_cached = false; // cacheable access (read or write)
2321	size_t dcache_tlb_way = 0; // selected way (in case of cache hit)
2322	size_t dcache_tlb_set = 0; // selected set (Y field in address)
2323	data_t dcache_rdata = 0; // read data
2324	paddr_t dcache_tlb_nline = 0; // TLB NLINE
2325
2326	m_cpt_dcache_data_read += m_dcache_ways;
2327	m_cpt_dcache_dir_read += m_dcache_ways;
2328
2329	// Decoding READ XTN requests from processor
2330	// They are executed in this DCACHE_IDLE state
2331
2332	if (dreq.type == iss_t::XTN_READ)
2333	{
2334	switch(xtn_opcod) {
2335	case iss_t::XTN_INS_ERROR_TYPE:
2336	drsp.rdata = (uint32_t)r_icache_error_type;
2337	r_icache_error_type = MMU_NONE;
2338	drsp.valid = true;
2339	drsp.error = false;
2340	break;
2341	case iss_t::XTN_DATA_ERROR_TYPE:
2342	drsp.rdata = (uint32_t)r_dcache_error_type;
2343	r_dcache_error_type = MMU_NONE;
2344	drsp.valid = true;
2345	drsp.error = false;
2346	break;
2347	case iss_t::XTN_INS_BAD_VADDR:
2348	drsp.rdata = (uint32_t)r_icache_bad_vaddr;
2349	drsp.valid = true;
2350	drsp.error = false;
2351	break;
2352	case iss_t::XTN_DATA_BAD_VADDR:
2353	drsp.rdata = (uint32_t)r_dcache_bad_vaddr;
2354	drsp.valid = true;
2355	drsp.error = false;
2356	break;
2357	case iss_t::XTN_PTPR:
2358	drsp.rdata = (uint32_t)r_mmu_ptpr;
2359	drsp.valid = true;
2360	drsp.error = false;
2361	break;
2362	case iss_t::XTN_TLB_MODE:
2363	drsp.rdata = (uint32_t)r_mmu_mode;
2364	drsp.valid = true;
2365	drsp.error = false;
2366	break;
2367	case iss_t::XTN_MMU_PARAMS:
2368	drsp.rdata = (uint32_t)r_mmu_params;
2369	drsp.valid = true;
2370	drsp.error = false;
2371	break;
2372	case iss_t::XTN_MMU_RELEASE:
2373	drsp.rdata = (uint32_t)r_mmu_release;
2374	drsp.valid = true;
2375	drsp.error = false;
2376	break;
2377	case iss_t::XTN_MMU_WORD_LO:
2378	drsp.rdata = (uint32_t)r_mmu_word_lo;
2379	drsp.valid = true;
2380	drsp.error = false;
2381	break;
2382	case iss_t::XTN_MMU_WORD_HI:
2383	drsp.rdata = (uint32_t)r_mmu_word_hi;
2384	drsp.valid = true;
2385	drsp.error = false;
2386	break;
2387	default:
2388	r_dcache_error_type = MMU_READ_UNDEFINED_XTN;
2389	r_dcache_bad_vaddr = dreq.addr;
2390	drsp.valid = true;
2391	drsp.error = true;
2392	break;
2393	}
2394	r_dcache_fsm = DCACHE_IDLE;
2395	break;
2396	}
2397
2398	// Decoding WRITE XTN requests from processor
2399	// If there is no privilege violation, they are not executed in this DCACHE_IDLE state,
2400	// but in the next state, because they generally require access to the caches or the TLBs
2401
2402	if (dreq.type == iss_t::XTN_WRITE)
2403	{
2404	drsp.valid = false;
2405	drsp.error = false;
2406	drsp.rdata = 0;
2407	r_dcache_wdata_save = dreq.wdata;
2408	switch(xtn_opcod) {
2409
2410	case iss_t::XTN_PTPR: // context switch : checking the kernel mode
2411	// both instruction & data TLBs must be flushed
2412	if ((dreq.mode == iss_t::MODE_HYPER) \|\| (dreq.mode == iss_t::MODE_KERNEL))
2413	{
2414	r_mmu_ptpr = dreq.wdata;
2415	r_icache_error_type = MMU_NONE;
2416	r_dcache_error_type = MMU_NONE;
2417	r_dcache_type_save = dreq.addr/4;
2418	r_dcache_xtn_req = true;
2419	r_dcache_fsm = DCACHE_CTXT_SWITCH;
2420	}
2421	else
2422	{
2423	r_dcache_error_type = MMU_WRITE_PRIVILEGE_VIOLATION;
2424	r_dcache_bad_vaddr = dreq.addr;
2425	drsp.valid = true;
2426	drsp.error = true;
2427	r_dcache_fsm = DCACHE_IDLE;
2428	}
2429	break;
2430
2431	case iss_t::XTN_TLB_MODE: // modifying TLBs mode : checking the kernel mode
2432	if ((dreq.mode == iss_t::MODE_HYPER) \|\| (dreq.mode == iss_t::MODE_KERNEL))
2433	{
2434	r_mmu_mode = (int)dreq.wdata;
2435	drsp.valid = true;
2436	}
2437	else
2438	{
2439	r_dcache_error_type = MMU_WRITE_PRIVILEGE_VIOLATION;
2440	r_dcache_bad_vaddr = dreq.addr;
2441	drsp.valid = true;
2442	drsp.error = true;
2443	}
2444	r_dcache_fsm = DCACHE_IDLE;
2445	break;
2446
2447	case iss_t::XTN_DTLB_INVAL: // checking the kernel mode
2448	if ((dreq.mode == iss_t::MODE_HYPER) \|\| (dreq.mode == iss_t::MODE_KERNEL))
2449	{
2450	r_dcache_fsm = DCACHE_DTLB_INVAL;
2451	}
2452	else
2453	{
2454	r_dcache_error_type = MMU_WRITE_PRIVILEGE_VIOLATION;
2455	r_dcache_bad_vaddr = dreq.addr;
2456	drsp.valid = true;
2457	drsp.error = true;
2458	r_dcache_fsm = DCACHE_IDLE;
2459	}
2460	break;
2461
2462	case iss_t::XTN_ITLB_INVAL: // checking the kernel mode
2463	if ((dreq.mode == iss_t::MODE_HYPER) \|\| (dreq.mode == iss_t::MODE_KERNEL))
2464	{
2465	r_dcache_xtn_req = true;
2466	r_dcache_type_save = dreq.addr/4;
2467	r_dcache_fsm = DCACHE_ITLB_INVAL;
2468	}
2469	else
2470	{
2471	r_dcache_error_type = MMU_WRITE_PRIVILEGE_VIOLATION;
2472	r_dcache_bad_vaddr = dreq.addr;
2473	drsp.valid = true;
2474	drsp.error = true;
2475	r_dcache_fsm = DCACHE_IDLE;
2476	}
2477	break;
2478
2479	case iss_t::XTN_DCACHE_INVAL: // cache inval can be executed in user mode.
2480	r_dcache_fsm = DCACHE_DCACHE_INVAL;
2481	break;
2482
2483	case iss_t::XTN_MMU_DCACHE_PA_INV: // cache inval can be executed in user mode.
2484	r_dcache_fsm = DCACHE_DCACHE_INVAL_PA;
2485	break;
2486
2487	case iss_t::XTN_DCACHE_FLUSH: // cache flush can be executed in user mode.
2488	r_dcache_type_save = dreq.addr/4;
2489	r_dcache_xtn_req = true;
2490	r_dcache_way = 0;
2491	r_dcache_set = 0;
2492	r_dcache_fsm = DCACHE_DCACHE_FLUSH;
2493	break;
2494
2495	case iss_t::XTN_ICACHE_INVAL: // cache inval can be executed in user mode.
2496	r_dcache_type_save = dreq.addr/4;
2497	r_dcache_xtn_req = true;
2498	r_dcache_fsm = DCACHE_ICACHE_INVAL;
2499	break;
2500
2501	case iss_t::XTN_MMU_ICACHE_PA_INV: // cache inval can be executed in user mode.
2502	r_dcache_type_save = dreq.addr/4;
2503	r_dcache_xtn_req = true;
2504	r_dcache_fsm = DCACHE_ICACHE_INVAL_PA;
2505	break;
2506
2507	case iss_t::XTN_ICACHE_FLUSH: // cache flush can be executed in user mode.
2508	r_dcache_type_save = dreq.addr/4;
2509	r_dcache_xtn_req = true;
2510	r_dcache_fsm = DCACHE_ICACHE_FLUSH;
2511	break;
2512
2513	case iss_t::XTN_SYNC: // cache synchronization can be executed in user mode.
2514	if (r_wbuf.rok())
2515	{
2516	r_dcache_fsm = DCACHE_DCACHE_SYNC;
2517	}
2518	else
2519	{
2520	drsp.valid = true;
2521	r_dcache_fsm = DCACHE_IDLE;
2522	}
2523	break;
2524
2525	case iss_t::XTN_MMU_WORD_LO: // modifying MMU misc registers
2526	if ((dreq.mode == iss_t::MODE_HYPER) \|\| (dreq.mode == iss_t::MODE_KERNEL))
2527	{
2528	r_mmu_word_lo = (int)dreq.wdata;
2529	drsp.valid = true;
2530	}
2531	else
2532	{
2533	r_dcache_error_type = MMU_WRITE_PRIVILEGE_VIOLATION;
2534	r_dcache_bad_vaddr = dreq.addr;
2535	drsp.valid = true;
2536	drsp.error = true;
2537	}
2538	r_dcache_fsm = DCACHE_IDLE;
2539	break;
2540
2541	case iss_t::XTN_MMU_WORD_HI: // modifying MMU misc registers
2542	if ((dreq.mode == iss_t::MODE_HYPER) \|\| (dreq.mode == iss_t::MODE_KERNEL))
2543	{
2544	r_mmu_word_hi = (int)dreq.wdata;
2545	drsp.valid = true;
2546	}
2547	else
2548	{
2549	r_dcache_error_type = MMU_WRITE_PRIVILEGE_VIOLATION;
2550	r_dcache_bad_vaddr = dreq.addr;
2551	drsp.valid = true;
2552	drsp.error = true;
2553	}
2554	r_dcache_fsm = DCACHE_IDLE;
2555	break;
2556
2557	case iss_t::XTN_ICACHE_PREFETCH:
2558	case iss_t::XTN_DCACHE_PREFETCH:
2559	drsp.valid = true;
2560	drsp.error = false;
2561	break;
2562
2563	default:
2564	r_dcache_error_type = MMU_WRITE_UNDEFINED_XTN;
2565	r_dcache_bad_vaddr = dreq.addr;
2566	drsp.valid = true;
2567	drsp.error = true;
2568	r_dcache_fsm = DCACHE_IDLE;
2569	break;
2570	} // end switch xtn_opcod
2571
2572	break;
2573	} // end if XTN_WRITE
2574
2575	// Evaluating dcache_hit_t, dcache_hit_x, dcache_hit_p, dcache_hit_c,
2576	// dcache_pte_info, dcache_tlb_way, dcache_tlb_set & dpaddr & cacheability
2577	// - If MMU activated : cacheability is defined by the cachable bit in the TLB
2578	// - If MMU not activated : cacheability is defined by the segment table.
2579
2580	if ( !(r_mmu_mode.read() & DATA_TLB_MASK) ) // MMU not activated
2581	{
2582	dcache_hit_t = true;
2583	dcache_hit_x = true;
2584	dcache_hit_p = true;
2585	tlb_dpaddr = dreq.addr;
2586	spc_dpaddr = dreq.addr;
2587	dcache_cached = m_cacheability_table[dreq.addr] &&
2588	((dreq.type != iss_t::DATA_LL) && (dreq.type != iss_t::DATA_SC) &&
2589	(dreq.type != iss_t::XTN_READ) && (dreq.type != iss_t::XTN_WRITE));
2590	}
2591	else // MMU activated
2592	{
2593	m_cpt_data_tlb_read++;
2594	dcache_hit_t = dcache_tlb.cctranslate(dreq.addr, &tlb_dpaddr, &dcache_pte_info,
2595	&dcache_tlb_nline, &dcache_tlb_way, &dcache_tlb_set);
2596	dcache_hit_x = (((vaddr_t)r_dcache_vpn_save << PAGE_K_NBITS) == (dreq.addr & ~PAGE_K_MASK)) && r_dtlb_translation_valid;
2597	dcache_hit_p = (((dreq.addr >> PAGE_M_NBITS) == r_dcache_id1_save) && r_dcache_ptba_ok );
2598	spc_dpaddr = ((paddr_t)r_dcache_ppn_save << PAGE_K_NBITS) \| (paddr_t)((dreq.addr & PAGE_K_MASK));
2599	dcache_cached = dcache_pte_info.c &&
2600	((dreq.type != iss_t::DATA_LL) && (dreq.type != iss_t::DATA_SC) &&
2601	(dreq.type != iss_t::XTN_READ) && (dreq.type != iss_t::XTN_WRITE));
2602	}
2603
2604	if ( !(r_mmu_mode.read() & DATA_CACHE_MASK) ) // cache not actived
2605	{
2606	dcache_cached = false;
2607	}
2608
2609	// dcache_hit_c & dcache_rdata
2610	if ( dcache_cached ) // using speculative physical address for cached access
2611	{
2612	dcache_hit_c = r_dcache.read(spc_dpaddr, &dcache_rdata);
2613	}
2614	else // using actual physical address for uncached access
2615	{
2616	dcache_hit_c = false;
2617	}
2618	if ( r_mmu_mode.read() & DATA_TLB_MASK )
2619	{
2620	// Checking access rights
2621	if ( dcache_hit_t )
2622	{
2623	if (!dcache_pte_info.u && (dreq.mode == iss_t::MODE_USER))
2624	{
2625	if ((dreq.type == iss_t::DATA_READ)\|\|(dreq.type == iss_t::DATA_LL))
2626	{
2627	r_dcache_error_type = MMU_READ_PRIVILEGE_VIOLATION;
2628	}
2629	else /if ((dreq.type == iss_t::DATA_WRITE)\|\|(dreq.type == iss_t::DATA_SC))/
2630	{
2631	r_dcache_error_type = MMU_WRITE_PRIVILEGE_VIOLATION;
2632	}
2633	r_dcache_bad_vaddr = dreq.addr;
2634	drsp.valid = true;
2635	drsp.error = true;
2636	drsp.rdata = 0;
2637	r_dcache_fsm = DCACHE_IDLE;
2638	break;
2639	}
2640	if (!dcache_pte_info.w && ((dreq.type == iss_t::DATA_WRITE)\|\|(dreq.type == iss_t::DATA_SC)))
2641	{
2642	r_dcache_error_type = MMU_WRITE_ACCES_VIOLATION;
2643	r_dcache_bad_vaddr = dreq.addr;
2644	drsp.valid = true;
2645	drsp.error = true;
2646	drsp.rdata = 0;
2647	r_dcache_fsm = DCACHE_IDLE;
2648	break;
2649	}
2650	}
2651
2652	// update LRU, save ppn, vpn and page type
2653	if ( dcache_hit_t ) {
2654	dcache_tlb.setlru(dcache_tlb_way,dcache_tlb_set);
2655	r_dcache_ppn_save = tlb_dpaddr >> PAGE_K_NBITS;
2656	r_dcache_vpn_save = dreq.addr >> PAGE_K_NBITS;
2657	r_dcache_tlb_nline = dcache_tlb_nline;
2658	r_dtlb_translation_valid = true;
2659	}
2660	else
2661	{
2662	r_dtlb_translation_valid = false;
2663	}
2664
2665	} // end if MMU activated
2666
2667	// compute next state
2668	if ( !dcache_hit_p && !dcache_hit_t ) // TLB miss
2669	{
2670	r_dcache_tlb_paddr = (paddr_t)r_mmu_ptpr << (INDEX1_NBITS+2) \| (paddr_t)((dreq.addr>>PAGE_M_NBITS)<<2);
2671	r_dcache_fsm = DCACHE_DTLB1_READ_CACHE;
2672	m_cpt_data_tlb_miss++;
2673	m_cost_data_tlb_miss_frz++;
2674	}
2675	else if ( dcache_hit_p && !dcache_hit_t ) // TLB Miss with possibility of bypass first level page
2676	{
2677	// walk page table level 2
2678	r_dcache_tlb_paddr = (paddr_t)r_dcache_ptba_save \|
2679	(paddr_t)(((dreq.addr&PTD_ID2_MASK)>>PAGE_K_NBITS) << 3);
2680	r_dcache_fsm = DCACHE_DTLB2_READ_CACHE;
2681	m_cpt_data_tlb_miss++;
2682	m_cost_data_tlb_miss_frz++;
2683	}
2684	else if ( dcache_hit_t && !dcache_hit_x && dcache_cached )// cached access with an ucorrect speculative physical address
2685	{
2686	r_dcache_hit_p_save = dcache_hit_p;
2687	r_dcache_fsm = DCACHE_BIS;
2688	m_cost_data_tlb_miss_frz++;
2689	}
2690	else // cached or uncached access with a correct speculative physical address
2691	{
2692	switch( dreq.type ) {
2693	case iss_t::DATA_READ:
2694	case iss_t::DATA_LL:
2695	case iss_t::DATA_SC:
2696	m_cpt_read++;
2697	if ( dcache_hit_c )
2698	{
2699	r_dcache_fsm = DCACHE_IDLE;
2700	drsp.valid = true;
2701	drsp.rdata = dcache_rdata;
2702	}
2703	else
2704	{
2705	if ( dcache_cached )
2706	{
2707	r_dcache_miss_req = true;
2708	r_dcache_fsm = DCACHE_MISS_WAIT;
2709	m_cpt_data_miss++;
2710	m_cost_data_miss_frz++;
2711	}
2712	else
2713	{
2714	if ((dreq.type == iss_t::DATA_SC) && !dcache_pte_info.d && (r_mmu_mode.read() & DATA_TLB_MASK))
2715	{
2716	m_cpt_data_tlb_update_dirty++;
2717	m_cost_data_tlb_update_dirty_frz++;
2718	r_dcache_sc_updt_dirty = true;
2719	if ( dcache_tlb.getpagesize(dcache_tlb_way, dcache_tlb_set) ) // 2M page size, one level page table
2720	{
2721	r_dcache_pte_update = dcache_tlb.getpte(dcache_tlb_way, dcache_tlb_set) \| PTE_D_MASK;
2722	r_dcache_tlb_paddr = (paddr_t)r_mmu_ptpr << (INDEX1_NBITS+2) \| (paddr_t)((dreq.addr>>PAGE_M_NBITS)<<2);
2723	r_dcache_tlb_ll_dirty_req = true;
2724	r_dcache_fsm = DCACHE_LL_DIRTY_WAIT;
2725	}
2726	else // 4k page size, two levels page table
2727	{
2728	if (dcache_hit_p)
2729	{
2730	r_dcache_pte_update = dcache_tlb.getpte(dcache_tlb_way, dcache_tlb_set) \| PTE_D_MASK;
2731	r_dcache_tlb_paddr = (paddr_t)r_dcache_ptba_save \| (paddr_t)(((dreq.addr&PTD_ID2_MASK)>>PAGE_K_NBITS) << 3);
2732	r_dcache_tlb_ll_dirty_req = true;
2733	r_dcache_fsm = DCACHE_LL_DIRTY_WAIT;
2734	}
2735	else // get PTBA to calculate the physical address of PTE
2736	{
2737	data_t ptba;
2738	if (r_dcache.read((paddr_t)r_mmu_ptpr << (INDEX1_NBITS+2) \| (paddr_t)((dreq.addr>>PAGE_M_NBITS)<<2), &ptba))
2739	{
2740	r_dcache_pte_update = dcache_tlb.getpte(dcache_tlb_way, dcache_tlb_set) \| PTE_D_MASK;
2741	r_dcache_tlb_paddr = (paddr_t)(ptba & ((1<<(m_paddr_nbits - PAGE_K_NBITS))-1)) << PAGE_K_NBITS \|
2742	(paddr_t)(((dreq.addr & PTD_ID2_MASK) >> PAGE_K_NBITS) << 3);
2743	r_dcache_tlb_ll_dirty_req = true;
2744	r_dcache_fsm = DCACHE_LL_DIRTY_WAIT;
2745
2746	}
2747	else
2748	{
2749	r_dcache_pte_update = dcache_tlb.getpte(dcache_tlb_way, dcache_tlb_set) \| PTE_D_MASK;
2750	r_dcache_tlb_paddr = (paddr_t)r_mmu_ptpr << (INDEX1_NBITS+2) \| (paddr_t)((dreq.addr>>PAGE_M_NBITS)<<2);
2751	r_dcache_tlb_ptba_read = true;
2752	r_dcache_fsm = DCACHE_DTLB1_READ_CACHE;
2753	}
2754	}
2755	}
2756	}
2757	else
2758	{
2759	r_dcache_unc_req = true;
2760	r_dcache_fsm = DCACHE_UNC_WAIT;
2761	m_cpt_unc_read++;
2762	}
2763	m_cost_unc_read_frz++;
2764	}
2765	}
2766	break;
2767	/*
2768	case iss_t::DATA_READ:
2769	m_cpt_read++;
2770	if ( dcache_hit_c )
2771	{
2772	r_dcache_buf_unc_valid = false;
2773	r_dcache_fsm = DCACHE_IDLE;
2774	drsp.valid = true;
2775	drsp.rdata = dcache_rdata;
2776	}
2777	else
2778	{
2779	if ( dcache_cached )
2780	{
2781	r_dcache_miss_req = true;
2782	r_dcache_fsm = DCACHE_MISS_WAIT;
2783	m_cpt_data_miss++;
2784	m_cost_data_miss_frz++;
2785	}
2786	else
2787	{
2788	r_dcache_unc_req = true;
2789	r_dcache_fsm = DCACHE_UNC_WAIT;
2790	m_cpt_unc_read++;
2791	m_cost_unc_read_frz++;
2792	}
2793	}
2794	break;
2795	case iss_t::DATA_LL:
2796	if (r_dcache_llsc_reserved && (r_dcache_llsc_addr_save == tlb_dpaddr) && r_dcache_buf_unc_valid)
2797	{
2798	r_dcache_buf_unc_valid = false;
2799	r_dcache_fsm = DCACHE_IDLE;
2800	drsp.valid = true;
2801	drsp.rdata = dcache_rdata;
2802	}
2803	else
2804	{
2805	r_dcache_llsc_reserved = true;
2806	r_dcache_llsc_addr_save = tlb_dpaddr;
2807	r_dcache_unc_req = true;
2808	r_dcache_fsm = DCACHE_UNC_WAIT;
2809	}
2810	break;
2811	case iss_t::DATA_SC:
2812	if (r_dcache_llsc_reserved && (r_dcache_llsc_addr_save == tlb_dpaddr))
2813	{
2814	r_dcache_llsc_reserved = false;
2815	r_dcache_unc_req = true;
2816	r_dcache_fsm = DCACHE_UNC_WAIT;
2817	}
2818	else
2819	{
2820	if ( r_dcache_buf_unc_valid )
2821	{
2822	r_dcache_llsc_reserved = false;
2823	r_dcache_buf_unc_valid = false;
2824	drsp.valid = true;
2825	drsp.rdata = dcache_rdata;
2826	}
2827	r_dcache_fsm = DCACHE_IDLE;
2828	}
2829	break;
2830	*/
2831	case iss_t::DATA_WRITE:
2832	m_cpt_write++;
2833	if ( dcache_cached ) m_cpt_write_cached++;
2834	m_cost_write_frz++;
2835	if ( dcache_hit_c && dcache_cached ) // cache update required
2836	{
2837	r_dcache_fsm = DCACHE_WRITE_UPDT;
2838	}
2839	else if ( !dcache_pte_info.d && (r_mmu_mode.read() & DATA_TLB_MASK) ) // dirty bit update required
2840	{
2841	m_cpt_data_tlb_update_dirty++;
2842	m_cost_data_tlb_update_dirty_frz++;
2843	if ( dcache_tlb.getpagesize(dcache_tlb_way, dcache_tlb_set) ) // 2M page size, one level page table
2844	{
2845	r_dcache_pte_update = dcache_tlb.getpte(dcache_tlb_way, dcache_tlb_set) \| PTE_D_MASK;
2846	r_dcache_tlb_paddr = (paddr_t)r_mmu_ptpr << (INDEX1_NBITS+2) \| (paddr_t)((dreq.addr>>PAGE_M_NBITS)<<2);
2847	r_dcache_tlb_ll_dirty_req = true;
2848	r_dcache_fsm = DCACHE_LL_DIRTY_WAIT;
2849	}
2850	else // 4k page size, two levels page table
2851	{
2852	if (dcache_hit_p)
2853	{
2854	r_dcache_pte_update = dcache_tlb.getpte(dcache_tlb_way, dcache_tlb_set) \| PTE_D_MASK;
2855	r_dcache_tlb_paddr = (paddr_t)r_dcache_ptba_save \| (paddr_t)(((dreq.addr&PTD_ID2_MASK)>>PAGE_K_NBITS) << 3);
2856	r_dcache_tlb_ll_dirty_req = true;
2857	r_dcache_fsm = DCACHE_LL_DIRTY_WAIT;
2858	}
2859	else // get PTBA to calculate the physical address of PTE
2860	{
2861	r_dcache_pte_update = dcache_tlb.getpte(dcache_tlb_way, dcache_tlb_set) \| PTE_D_MASK;
2862	data_t ptba;
2863	if (r_dcache.read((paddr_t)r_mmu_ptpr << (INDEX1_NBITS+2) \| (paddr_t)((dreq.addr>>PAGE_M_NBITS)<<2), &ptba))
2864	{
2865	r_dcache_tlb_paddr = (paddr_t)(ptba & ((1<<(m_paddr_nbits - PAGE_K_NBITS))-1)) << PAGE_K_NBITS \| (paddr_t)(((dreq.addr & PTD_ID2_MASK) >> PAGE_K_NBITS) << 3);
2866	r_dcache_tlb_ll_dirty_req = true;
2867	r_dcache_fsm = DCACHE_LL_DIRTY_WAIT;
2868	}
2869	else
2870	{
2871	r_dcache_tlb_paddr = (paddr_t)r_mmu_ptpr << (INDEX1_NBITS+2) \| (paddr_t)((dreq.addr>>PAGE_M_NBITS)<<2);
2872	r_dcache_tlb_ptba_read = true;
2873	r_dcache_fsm = DCACHE_DTLB1_READ_CACHE;
2874	}
2875	}
2876	}
2877	}
2878	else // no cache update, not dirty bit update
2879	{
2880	r_dcache_fsm = DCACHE_WRITE_REQ;
2881	drsp.valid = true;
2882	drsp.rdata = 0;
2883	}
2884	break;
2885	default:
2886	break;
2887	} // end switch dreq.type
2888	} // end if next states
2889
2890	// save values for the next states
2891	r_dcache_paddr_save = tlb_dpaddr;
2892	r_dcache_type_save = dreq.type;
2893	r_dcache_wdata_save = dreq.wdata;
2894	r_dcache_be_save = dreq.be;
2895	r_dcache_rdata_save = dcache_rdata;
2896	r_dcache_cached_save = dcache_cached;
2897	r_dcache_dirty_save = dcache_pte_info.d;
2898	r_dcache_tlb_set_save = dcache_tlb_set;
2899	r_dcache_tlb_way_save = dcache_tlb_way;
2900
2901	} // end if dreq.valid
2902	else
2903	{
2904	r_dcache_fsm = DCACHE_IDLE;
2905	}
2906
2907	// processor request are not accepted in the WRITE_REQ state
2908	// when the write buffer is not writeable
2909
2910	if ((r_dcache_fsm == DCACHE_WRITE_REQ) &&
2911	(r_dcache_write_req \|\| !r_wbuf.wok(r_dcache_paddr_save)))
2912	{
2913	drsp.valid = false;
2914	}
2915	break;
2916	}
2917	/////////////////
2918	case DCACHE_BIS:
2919	{
2920	// external cache invalidate request
2921	if ( r_tgt_dcache_req )
2922	{
2923	r_dcache_fsm = DCACHE_CC_CHECK;
2924	r_dcache_fsm_save = r_dcache_fsm;
2925	if ( dreq.valid ) m_cost_data_miss_frz++;
2926	break;
2927	}
2928
2929	// Using tlb entry is invalidated
2930	if ( r_dcache_inval_tlb_rsp )
2931	{
2932	r_dcache_inval_tlb_rsp = false;
2933	r_dcache_fsm = DCACHE_IDLE;
2934	if ( dreq.valid ) m_cost_data_miss_frz++;
2935	break;
2936	}
2937
2938	data_t dcache_rdata = 0;
2939	bool dcache_hit_c = false;
2940	bool dcache_hit_t = false;
2941	paddr_t tlb_dpaddr = 0;
2942
2943	dcache_hit_t = dcache_tlb.translate(dreq.addr, &tlb_dpaddr);
2944
2945	if ( (tlb_dpaddr == r_dcache_paddr_save.read()) && dreq.valid && dcache_hit_t )
2946	{
2947	// acces always cached in this state
2948	dcache_hit_c = r_dcache.read(r_dcache_paddr_save, &dcache_rdata);
2949
2950	if ( dreq.type == iss_t::DATA_READ ) // cached read
2951	{
2952	m_cpt_read++;
2953	if ( !dcache_hit_c )
2954	{
2955	r_dcache_miss_req = true;
2956	r_dcache_fsm = DCACHE_MISS_WAIT;
2957	m_cpt_data_miss++;
2958	m_cost_data_miss_frz++;
2959	}
2960	else
2961	{
2962	r_dcache_fsm = DCACHE_IDLE;
2963	}
2964	drsp.valid = dcache_hit_c;
2965	drsp.error = false;
2966	drsp.rdata = dcache_rdata;
2967	}
2968	else // cached write
2969	{
2970	m_cpt_write++;
2971	m_cpt_write_cached++;
2972	if ( dcache_hit_c ) // cache update required
2973	{
2974	r_dcache_rdata_save = dcache_rdata;
2975	r_dcache_fsm = DCACHE_WRITE_UPDT;
2976	}
2977	else if (!r_dcache_dirty_save && (r_mmu_mode.read() & DATA_TLB_MASK)) // dirty bit update required
2978	{
2979	m_cpt_data_tlb_update_dirty++;
2980	m_cost_data_tlb_update_dirty_frz++;
2981	if (dcache_tlb.getpagesize(r_dcache_tlb_way_save, r_dcache_tlb_set_save))
2982	{
2983	r_dcache_pte_update = dcache_tlb.getpte(r_dcache_tlb_way_save, r_dcache_tlb_set_save) \| PTE_D_MASK;
2984	r_dcache_tlb_paddr = (paddr_t)r_mmu_ptpr << (INDEX1_NBITS+2) \| (paddr_t)((dreq.addr>>PAGE_M_NBITS)<<2);
2985	r_dcache_tlb_ll_dirty_req = true;
2986	r_dcache_fsm = DCACHE_LL_DIRTY_WAIT;
2987	}
2988	else
2989	{
2990	if (r_dcache_hit_p_save)
2991	{
2992	r_dcache_pte_update = dcache_tlb.getpte(r_dcache_tlb_way_save, r_dcache_tlb_set_save) \| PTE_D_MASK;
2993	r_dcache_tlb_paddr = (paddr_t)r_dcache_ptba_save\|(paddr_t)(((dreq.addr&PTD_ID2_MASK)>>PAGE_K_NBITS) << 3);
2994	r_dcache_tlb_ll_dirty_req = true;
2995	r_dcache_fsm = DCACHE_LL_DIRTY_WAIT;
2996	}
2997	else
2998	{
2999	r_dcache_pte_update = dcache_tlb.getpte(r_dcache_tlb_way_save, r_dcache_tlb_set_save) \| PTE_D_MASK;
3000	data_t ptba;
3001	if (r_dcache.read((paddr_t)r_mmu_ptpr << (INDEX1_NBITS+2) \| (paddr_t)((dreq.addr>>PAGE_M_NBITS)<<2), &ptba))
3002	{
3003	r_dcache_tlb_paddr = (paddr_t)(ptba & ((1<<(m_paddr_nbits - PAGE_K_NBITS))-1)) << PAGE_K_NBITS \| (paddr_t)(((dreq.addr & PTD_ID2_MASK) >> PAGE_K_NBITS) << 3);
3004	r_dcache_tlb_ll_dirty_req = true;
3005	r_dcache_fsm = DCACHE_LL_DIRTY_WAIT;
3006	}
3007	else
3008	{
3009	r_dcache_tlb_paddr = (paddr_t)r_mmu_ptpr << (INDEX1_NBITS+2) \| (paddr_t)((dreq.addr>>PAGE_M_NBITS)<<2);
3010	r_dcache_tlb_ptba_read = true;
3011	r_dcache_fsm = DCACHE_DTLB1_READ_CACHE;
3012	}
3013	}
3014	}
3015	}
3016	else // no cache update, not dirty bit update
3017	{
3018	r_dcache_fsm = DCACHE_WRITE_REQ;
3019	drsp.valid = true;
3020	drsp.rdata = 0;
3021	}
3022	}
3023	}
3024	else
3025	{
3026	drsp.valid = false;
3027	drsp.error = false;
3028	drsp.rdata = 0;
3029	r_dcache_fsm = DCACHE_IDLE;
3030	}
3031	break;
3032	}
3033	//////////////////////////
3034	case DCACHE_LL_DIRTY_WAIT:
3035	{
3036	m_cost_data_tlb_update_dirty_frz++;
3037
3038	// external cache invalidate request
3039	if ( r_tgt_dcache_req )
3040	{
3041	r_dcache_fsm = DCACHE_CC_CHECK;
3042	r_dcache_fsm_save = r_dcache_fsm;
3043	break;
3044	}
3045
3046	if (!r_dcache_tlb_ll_dirty_req)
3047	{
3048	if ( r_vci_rsp_data_error ) // VCI response ko
3049	{
3050	if (dcache_tlb.getpagesize(r_dcache_tlb_way_save, r_dcache_tlb_set_save))
3051	{
3052	r_dcache_error_type = MMU_WRITE_PT1_ILLEGAL_ACCESS;
3053	}
3054	else
3055	{
3056	r_dcache_error_type = MMU_WRITE_PT2_ILLEGAL_ACCESS;
3057	}
3058	r_dcache_bad_vaddr = dreq.addr;
3059	r_dcache_fsm = DCACHE_ERROR;
3060
3061	if (r_dcache_inval_tlb_rsp) r_dcache_inval_tlb_rsp = false;
3062	if (r_dcache_inval_rsp) r_dcache_inval_rsp = false;
3063	if (r_dcache_sc_updt_dirty) r_dcache_sc_updt_dirty = false;
3064	}
3065	else
3066	{
3067	if ( !(r_dcache_miss_buf[0] >> PTE_V_SHIFT) ) // unmapped
3068	{
3069	if (dcache_tlb.getpagesize(r_dcache_tlb_way_save, r_dcache_tlb_set_save))
3070	{
3071	r_dcache_error_type = MMU_WRITE_PT1_UNMAPPED;
3072	}
3073	else
3074	{
3075	r_dcache_error_type = MMU_WRITE_PT2_UNMAPPED;
3076	}
3077	r_dcache_bad_vaddr = dreq.addr;
3078	r_dcache_fsm = DCACHE_ERROR;
3079
3080	if (r_dcache_inval_tlb_rsp) r_dcache_inval_tlb_rsp = false;
3081	if (r_dcache_inval_rsp) r_dcache_inval_rsp = false;
3082	if (r_dcache_sc_updt_dirty) r_dcache_sc_updt_dirty = false;
3083	}
3084	else if ( r_dcache_inval_tlb_rsp )
3085	{
3086	r_dcache_inval_tlb_rsp = false;
3087	r_dcache_fsm = DCACHE_IDLE;
3088	if (r_dcache_sc_updt_dirty) r_dcache_sc_updt_dirty = false;
3089	}
3090	else if ( r_dcache_inval_rsp )
3091	{
3092	r_dcache_inval_rsp = false;
3093	r_dcache_fsm = DCACHE_IDLE;
3094	if (r_dcache_sc_updt_dirty) r_dcache_sc_updt_dirty = false;
3095	}
3096	else
3097	{
3098	r_dcache_tlb_sc_dirty_req = true;
3099	r_dcache_pte_update = r_dcache_miss_buf[0] \| r_dcache_pte_update.read();
3100	r_dcache_fsm = DCACHE_SC_DIRTY_WAIT;
3101	}
3102	}
3103	}
3104	break;
3105	}
3106	//////////////////////////
3107	case DCACHE_SC_DIRTY_WAIT:
3108	{
3109	m_cost_data_tlb_update_dirty_frz++;
3110	// external cache invalidate request
3111	if ( r_tgt_dcache_req )
3112	{
3113	r_dcache_fsm = DCACHE_CC_CHECK;
3114	r_dcache_fsm_save = r_dcache_fsm;
3115	break;
3116	}
3117
3118	if ( !r_dcache_tlb_sc_dirty_req )
3119	{
3120	if ( r_vci_rsp_data_error ) // VCI response ko
3121	{
3122	if (dcache_tlb.getpagesize(r_dcache_tlb_way_save, r_dcache_tlb_set_save))
3123	{
3124	r_dcache_error_type = MMU_WRITE_PT1_ILLEGAL_ACCESS;
3125	}
3126	else
3127	{
3128	r_dcache_error_type = MMU_WRITE_PT2_ILLEGAL_ACCESS;
3129	}
3130	r_dcache_bad_vaddr = dreq.addr;
3131	r_dcache_fsm = DCACHE_ERROR;
3132
3133	if (r_dcache_inval_tlb_rsp) r_dcache_inval_tlb_rsp = false;
3134	if (r_dcache_inval_rsp) r_dcache_inval_rsp = false;
3135	if (r_dcache_sc_updt_dirty) r_dcache_sc_updt_dirty = false;
3136	}
3137	else
3138	{
3139	// Using tlb entry is invalidated
3140	if ( r_dcache_inval_tlb_rsp )
3141	{
3142	r_dcache_inval_tlb_rsp = false;
3143	r_dcache_fsm = DCACHE_IDLE;
3144	if (r_dcache_tlb_sc_fail) r_dcache_tlb_sc_fail = false;
3145	if (r_dcache_sc_updt_dirty) r_dcache_sc_updt_dirty = false;
3146	}
3147	else if ( r_dcache_inval_rsp )
3148	{
3149	r_dcache_inval_rsp = false;
3150	r_dcache_fsm = DCACHE_IDLE;
3151	if (r_dcache_tlb_sc_fail) r_dcache_tlb_sc_fail = false;
3152	if (r_dcache_sc_updt_dirty) r_dcache_sc_updt_dirty = false;
3153	}
3154	else if ( r_dcache_tlb_sc_fail )
3155	{
3156	r_dcache_tlb_ll_dirty_req = true;
3157	r_dcache_tlb_sc_fail = false;
3158	r_dcache_fsm = DCACHE_LL_DIRTY_WAIT;
3159	m_cpt_data_tlb_update_dirty++;
3160	}
3161	else
3162	{
3163	bool write_hit = r_dcache.write(r_dcache_tlb_paddr, r_dcache_pte_update);
3164	assert(write_hit && "Write on miss ignores data for data MMU update dirty bit");
3165	r_dcache_fsm = DCACHE_WRITE_DIRTY;
3166	m_cpt_dcache_data_write++;
3167	}
3168	}
3169	}
3170	break;
3171	}
3172	////////////////////////////
3173	case DCACHE_DTLB1_READ_CACHE:
3174	{
3175	m_cost_data_tlb_miss_frz++;
3176
3177	// external cache invalidate request
3178	if ( r_tgt_dcache_req )
3179	{
3180	r_dcache_fsm = DCACHE_CC_CHECK;
3181	r_dcache_fsm_save = r_dcache_fsm;
3182	break;
3183	}
3184
3185	// Using tlb entry is invalidated
3186	if ( r_dcache_inval_tlb_rsp )
3187	{
3188	r_dcache_inval_tlb_rsp = false;
3189	r_dcache_fsm = DCACHE_IDLE;
3190	if ( r_dcache_tlb_ptba_read ) r_dcache_tlb_ptba_read = false;
3191	break;
3192	}
3193
3194	data_t tlb_data = 0;
3195	bool tlb_hit_cache = r_dcache.read(r_dcache_tlb_paddr, &tlb_data);
3196
3197	// DTLB request hit in cache
3198	if ( tlb_hit_cache )
3199	{
3200	if ( !(tlb_data >> PTE_V_SHIFT) ) // unmapped
3201	{
3202	r_dcache_ptba_ok = false;
3203	if ((r_dcache_type_save == iss_t::DATA_READ)\|\|(r_dcache_type_save == iss_t::DATA_LL))
3204	{
3205	r_dcache_error_type = MMU_READ_PT1_UNMAPPED;
3206	}
3207	else /if ((dreq.type == iss_t::DATA_WRITE)\|\|(dreq.type == iss_t::DATA_SC))/
3208	{
3209	r_dcache_error_type = MMU_WRITE_PT1_UNMAPPED;
3210	}
3211	r_dcache_bad_vaddr = dreq.addr;
3212	r_dcache_fsm = DCACHE_ERROR;
3213	}
3214	else if ( (tlb_data & PTE_T_MASK) >> PTE_T_SHIFT ) // PTD
3215	{
3216	r_dcache_ptba_ok = true;
3217	r_dcache_ptba_save = (paddr_t)(tlb_data & ((1<<(m_paddr_nbits - PAGE_K_NBITS))-1)) << PAGE_K_NBITS;
3218	r_dcache_id1_save = dreq.addr >> PAGE_M_NBITS;
3219	r_dcache_tlb_paddr = (paddr_t)(tlb_data & ((1<<(m_paddr_nbits - PAGE_K_NBITS))-1)) << PAGE_K_NBITS \|
3220	(paddr_t)(((dreq.addr & PTD_ID2_MASK) >> PAGE_K_NBITS) << 3);
3221	if ( r_dcache_tlb_ptba_read )
3222	{
3223	paddr_t tlb_dpaddr;
3224	data_t data;
3225	r_dcache_tlb_ptba_read = false;
3226	if (dcache_tlb.translate(dreq.addr, &tlb_dpaddr) && r_dcache.read( (paddr_t)(tlb_data & ((1<<(m_paddr_nbits - PAGE_K_NBITS))-1)) << PAGE_K_NBITS \| (paddr_t)(((dreq.addr & PTD_ID2_MASK) >> PAGE_K_NBITS) << 3) ,&data))
3227	{
3228	r_dcache_tlb_ll_dirty_req = true;
3229	r_dcache_fsm = DCACHE_LL_DIRTY_WAIT;
3230	//m_cpt_dcache_data_write++;
3231	m_cpt_data_tlb_update_dirty++;
3232	m_cost_data_tlb_update_dirty_frz++;
3233	}
3234	else
3235	{
3236	r_dcache_fsm = DCACHE_IDLE;
3237	}
3238	}
3239	else
3240	{
3241	r_dcache_fsm = DCACHE_DTLB2_READ_CACHE;
3242	}
3243	}
3244	else // PTE
3245	{
3246	m_cpt_data_tlb_hit_dcache++;
3247	r_dcache_ptba_ok = false;
3248	if ( (m_srcid_rw >> 4) == ((r_dcache_tlb_paddr.read() & ((1<<(m_paddr_nbits - PAGE_M_NBITS))-1)) >> (m_paddr_nbits - PAGE_M_NBITS -10)) ) // local
3249	{
3250	if ( (tlb_data & PTE_L_MASK ) >> PTE_L_SHIFT ) // L bit is set
3251	{
3252	r_dcache_pte_update = tlb_data;
3253	r_dcache_fsm = DCACHE_TLB1_UPDT;
3254	}
3255	else
3256	{
3257	r_dcache_pte_update = tlb_data \| PTE_L_MASK;
3258	r_dcache_tlb_ll_acc_req = true;
3259	r_dcache_fsm = DCACHE_TLB1_LL_WAIT;
3260	m_cpt_data_tlb_update_acc++;
3261	m_cost_data_tlb_update_acc_frz++;
3262	}
3263	}
3264	else // remotely
3265	{
3266	if ( (tlb_data & PTE_R_MASK ) >> PTE_R_SHIFT ) // R bit is set
3267	{
3268	r_dcache_pte_update = tlb_data;
3269	r_dcache_fsm = DCACHE_TLB1_UPDT;
3270	}
3271	else
3272	{
3273	r_dcache_pte_update = tlb_data \| PTE_R_MASK;
3274	r_dcache_tlb_ll_acc_req = true;
3275	r_dcache_fsm = DCACHE_TLB1_LL_WAIT;
3276	m_cpt_data_tlb_update_acc++;
3277	m_cost_data_tlb_update_acc_frz++;
3278	}
3279	}
3280	}
3281	}
3282	else
3283	{
3284	// DTLB request miss in cache and walk page table level 1
3285	r_dcache_tlb_read_req = true;
3286	r_dcache_fsm = DCACHE_TLB1_READ;
3287	}
3288	break;
3289	}
3290	///////////////////////
3291	case DCACHE_TLB1_LL_WAIT:
3292	{
3293	if ( dreq.valid ) m_cost_data_tlb_miss_frz++;
3294	m_cost_data_tlb_update_acc_frz++;
3295	// external cache invalidate request
3296	if ( r_tgt_dcache_req )
3297	{
3298	r_dcache_fsm = DCACHE_CC_CHECK;
3299	r_dcache_fsm_save = r_dcache_fsm;
3300	break;
3301	}
3302
3303	if (!r_dcache_tlb_ll_acc_req)
3304	{
3305	if ( r_vci_rsp_data_error ) // VCI response ko
3306	{
3307	if ((r_dcache_type_save == iss_t::DATA_READ)\|\|(r_dcache_type_save == iss_t::DATA_LL))
3308	{
3309	r_dcache_error_type = MMU_READ_PT1_ILLEGAL_ACCESS;
3310	}
3311	else /if ((dreq.type == iss_t::DATA_WRITE)\|\|(dreq.type == iss_t::DATA_SC))/
3312	{
3313	r_dcache_error_type = MMU_WRITE_PT1_ILLEGAL_ACCESS;
3314	}
3315	r_dcache_bad_vaddr = dreq.addr;
3316	r_dcache_fsm = DCACHE_ERROR;
3317
3318	if (r_dcache_inval_tlb_rsp) r_dcache_inval_tlb_rsp = false;
3319	if (r_dcache_inval_rsp) r_dcache_inval_rsp = false;
3320	}
3321	else
3322	{
3323	if ( !(r_dcache_miss_buf[0] >> PTE_V_SHIFT) ) // unmapped
3324	{
3325	if ((r_dcache_type_save == iss_t::DATA_READ)\|\|(r_dcache_type_save == iss_t::DATA_LL))
3326	{
3327	r_dcache_error_type = MMU_READ_PT1_UNMAPPED;
3328	}
3329	else /if ((dreq.type == iss_t::DATA_WRITE)\|\|(dreq.type == iss_t::DATA_SC))/
3330	{
3331	r_dcache_error_type = MMU_WRITE_PT1_UNMAPPED;
3332	}
3333	r_dcache_bad_vaddr = dreq.addr;
3334	r_dcache_fsm = DCACHE_ERROR;
3335
3336	if (r_dcache_inval_tlb_rsp) r_dcache_inval_tlb_rsp = false;
3337	if (r_dcache_inval_rsp) r_dcache_inval_rsp = false;
3338	}
3339	else if ( r_dcache_inval_tlb_rsp )
3340	{
3341	r_dcache_inval_tlb_rsp = false;
3342	r_dcache_fsm = DCACHE_IDLE;
3343	}
3344	else if ( r_dcache_inval_rsp )
3345	{
3346	r_dcache_inval_rsp = false;
3347	r_dcache_fsm = DCACHE_IDLE;
3348	}
3349	else
3350	{
3351	r_dcache_tlb_sc_acc_req = true;
3352	r_dcache_pte_update = r_dcache_miss_buf[0] \| r_dcache_pte_update.read();
3353	r_dcache_fsm = DCACHE_TLB1_SC_WAIT;
3354	}
3355	}
3356	}
3357	break;
3358	}
3359	///////////////////////
3360	case DCACHE_TLB1_SC_WAIT:
3361	{
3362	if ( dreq.valid ) m_cost_data_tlb_miss_frz++;
3363	m_cost_data_tlb_update_acc_frz++;
3364	// external cache invalidate request
3365	if ( r_tgt_dcache_req )
3366	{
3367	r_dcache_fsm = DCACHE_CC_CHECK;
3368	r_dcache_fsm_save = r_dcache_fsm;
3369	break;
3370	}
3371
3372	if ( !r_dcache_tlb_sc_acc_req )
3373	{
3374	if ( r_vci_rsp_data_error ) // VCI response ko
3375	{
3376	if ((r_dcache_type_save == iss_t::DATA_READ)\|\|(r_dcache_type_save == iss_t::DATA_LL))
3377	{
3378	r_dcache_error_type = MMU_READ_PT1_ILLEGAL_ACCESS;
3379	}
3380	else /if ((dreq.type == iss_t::DATA_WRITE)\|\|(dreq.type == iss_t::DATA_SC))/
3381	{
3382	r_dcache_error_type = MMU_WRITE_PT1_ILLEGAL_ACCESS;
3383	}
3384	r_dcache_bad_vaddr = dreq.addr;
3385	r_dcache_fsm = DCACHE_ERROR;
3386
3387	if (r_dcache_inval_tlb_rsp) r_dcache_inval_tlb_rsp = false;
3388	if (r_dcache_inval_rsp) r_dcache_inval_rsp = false;
3389	}
3390	else
3391	{
3392	// Using tlb entry is invalidated
3393	if ( r_dcache_inval_tlb_rsp )
3394	{
3395	r_dcache_inval_tlb_rsp = false;
3396	r_dcache_fsm = DCACHE_IDLE;
3397	if (r_dcache_tlb_sc_fail) r_dcache_tlb_sc_fail = false;
3398	}
3399	else if ( r_dcache_inval_rsp )
3400	{
3401	r_dcache_inval_rsp = false;
3402	if (r_dcache_tlb_sc_fail) r_dcache_tlb_sc_fail = false;
3403	r_dcache_fsm = DCACHE_IDLE;
3404	}
3405	else if ( r_dcache_tlb_sc_fail )
3406	{
3407	r_dcache_tlb_sc_fail = false;
3408	r_dcache_tlb_ll_acc_req = true;
3409	r_dcache_fsm = DCACHE_TLB1_LL_WAIT;
3410	m_cpt_data_tlb_update_acc++;
3411	}
3412	else
3413	{
3414	bool write_hit = r_dcache.write(r_dcache_tlb_paddr,r_dcache_pte_update);
3415	assert(write_hit && "Write on miss ignores data for data MMU update data access bit");
3416	r_dcache_fsm = DCACHE_TLB1_UPDT;
3417	m_cpt_dcache_data_write++;
3418	}
3419	}
3420	}
3421	break;
3422	}
3423	//////////////////////
3424	case DCACHE_TLB1_READ:
3425	{
3426	if ( dreq.valid ) m_cost_data_tlb_miss_frz++;
3427
3428	// external cache invalidate request
3429	if ( r_tgt_dcache_req )
3430	{
3431	r_dcache_fsm = DCACHE_CC_CHECK;
3432	r_dcache_fsm_save = r_dcache_fsm;
3433	break;
3434	}
3435
3436	if ( !r_dcache_tlb_read_req )
3437	{
3438	if ( r_vci_rsp_data_error ) // VCI response ko
3439	{
3440	if ((r_dcache_type_save == iss_t::DATA_READ)\|\|(r_dcache_type_save == iss_t::DATA_LL))
3441	{
3442	r_dcache_error_type = MMU_READ_PT1_ILLEGAL_ACCESS;
3443	}
3444	else /if ((dreq.type == iss_t::DATA_WRITE)\|\|(dreq.type == iss_t::DATA_SC))/
3445	{
3446	r_dcache_error_type = MMU_WRITE_PT1_ILLEGAL_ACCESS;
3447	}
3448	r_dcache_bad_vaddr = dreq.addr;
3449	r_dcache_fsm = DCACHE_ERROR;
3450
3451	if (r_dcache_inval_tlb_rsp) r_dcache_inval_tlb_rsp = false;
3452	if (r_dcache_inval_rsp) r_dcache_inval_rsp = false;
3453	if ( r_dcache_tlb_ptba_read ) r_dcache_tlb_ptba_read = false;
3454	break;
3455	}
3456
3457	if ( r_dcache_inval_tlb_rsp ) // TLB miss response and invalidation
3458	{
3459	r_dcache_fsm = DCACHE_IDLE;
3460	r_dcache_inval_tlb_rsp = false;
3461	if ( r_dcache_tlb_ptba_read ) r_dcache_tlb_ptba_read = false;
3462	break;
3463	}
3464
3465	if ( r_dcache_inval_rsp ) // TLB miss response and cache invalidation
3466	{
3467	if ( r_dcache_cleanup_req ) break;
3468	r_dcache_cleanup_req = true;
3469	r_dcache_cleanup_line = r_dcache_tlb_paddr.read() >> (uint32_log2(m_dcache_words) + 2);
3470	m_cpt_cc_cleanup_data++;
3471	r_dcache_fsm = DCACHE_IDLE;
3472	r_dcache_inval_rsp = false;
3473	if ( r_dcache_tlb_ptba_read ) r_dcache_tlb_ptba_read = false;
3474	break;
3475	}
3476
3477	// TLB miss response and no invalidation
3478	r_dcache_fsm = DCACHE_TLB1_READ_UPDT;
3479	}
3480	break;
3481	}
3482	//////////////////////////
3483	case DCACHE_TLB1_READ_UPDT:
3484	{
3485	m_cost_data_tlb_miss_frz++;
3486
3487	// external cache invalidate request
3488	if ( r_tgt_dcache_req )
3489	{
3490	r_dcache_fsm = DCACHE_CC_CHECK;
3491	r_dcache_fsm_save = r_dcache_fsm;
3492	break;
3493	}
3494
3495	// Using tlb entry is invalidated
3496	if ( r_dcache_inval_tlb_rsp )
3497	{
3498	r_dcache_inval_tlb_rsp = false;
3499	r_dcache_fsm = DCACHE_IDLE;
3500	if ( r_dcache_tlb_ptba_read ) r_dcache_tlb_ptba_read = false;
3501	break;
3502	}
3503
3504	if ( !r_dcache_cleanup_req ) // Miss update and no invalidation
3505	{
3506	// update dcache
3507	data_t rsp_dtlb_miss = 0;
3508	paddr_t victim_index = 0;
3509	size_t way = 0;
3510	size_t set = 0;
3511
3512	// Using tlb entry is in the invalidated cache line
3513	if ( r_dcache_inval_rsp )
3514	{
3515	r_dcache_cleanup_req = true;
3516	r_dcache_cleanup_line = r_dcache_tlb_paddr.read() >> (uint32_log2(m_dcache_words) + 2);
3517	m_cpt_cc_cleanup_data++;
3518	r_dcache_fsm = DCACHE_IDLE;
3519	r_dcache_inval_rsp = false;
3520	if ( r_dcache_tlb_ptba_read ) r_dcache_tlb_ptba_read = false;
3521	break;
3522	}
3523
3524	bool cleanup_req = r_dcache.find(r_dcache_tlb_paddr, r_dcache_in_itlb, r_dcache_in_dtlb, &way, &set, &victim_index);
3525
3526	if ( cleanup_req )
3527	{
3528	// ins tlb invalidate verification
3529	r_dcache_itlb_inval_req = r_dcache_in_itlb[m_dcache_sets*way+set];
3530	r_dcache_itlb_inval_line = victim_index;
3531	r_dcache_in_itlb[way*m_dcache_sets+set] = false;
3532
3533	// data tlb invalidate verification
3534	r_dcache_dtlb_inval_req = r_dcache_in_dtlb[m_dcache_sets*way+set];
3535	r_dcache_dtlb_inval_line = victim_index;
3536	r_dcache_in_dtlb[way*m_dcache_sets+set] = false;
3537
3538	r_dcache_cleanup_req = true;
3539	r_dcache_cleanup_line = victim_index;
3540	m_cpt_cc_cleanup_data++;
3541	r_dcache_fsm = DCACHE_TLB_CC_INVAL;
3542	r_dcache_fsm_save = r_dcache_fsm;
3543	break;
3544	}
3545
3546	r_dcache.update(r_dcache_tlb_paddr, way, set, r_dcache_miss_buf);
3547	r_dcache.read(r_dcache_tlb_paddr, &rsp_dtlb_miss);
3548	m_cpt_data_tlb_occup_cache++;
3549
3550	if ( !(rsp_dtlb_miss >> PTE_V_SHIFT) ) // unmapped
3551	{
3552	r_dcache_ptba_ok = false;
3553	if ((r_dcache_type_save == iss_t::DATA_READ)\|\|(r_dcache_type_save == iss_t::DATA_LL))
3554	{
3555	r_dcache_error_type = MMU_READ_PT1_UNMAPPED;
3556	}
3557	else /if ((dreq.type == iss_t::DATA_WRITE)\|\|(dreq.type == iss_t::DATA_SC))/
3558	{
3559	r_dcache_error_type = MMU_WRITE_PT1_UNMAPPED;
3560	}
3561	r_dcache_bad_vaddr = dreq.addr;
3562	r_dcache_fsm = DCACHE_ERROR;
3563	if ( r_dcache_tlb_ptba_read ) r_dcache_tlb_ptba_read = false;
3564	}
3565	else if ( (rsp_dtlb_miss & PTE_T_MASK) >> PTE_T_SHIFT ) // PTD
3566	{
3567	r_dcache_ptba_ok = true;
3568	r_dcache_ptba_save = (paddr_t)(rsp_dtlb_miss & ((1<<(m_paddr_nbits - PAGE_K_NBITS))-1)) << PAGE_K_NBITS;
3569	r_dcache_id1_save = dreq.addr >> PAGE_M_NBITS;
3570	r_dcache_tlb_paddr = (paddr_t)(rsp_dtlb_miss & ((1<<(m_paddr_nbits - PAGE_K_NBITS))-1)) << PAGE_K_NBITS \|
3571	(paddr_t)(((dreq.addr & PTD_ID2_MASK) >> PAGE_K_NBITS) << 3);
3572	if ( r_dcache_tlb_ptba_read )
3573	{
3574	paddr_t tlb_dpaddr;
3575	data_t data;
3576	r_dcache_tlb_ptba_read = false;
3577	if (dcache_tlb.translate(dreq.addr, &tlb_dpaddr) && r_dcache.read((paddr_t)(rsp_dtlb_miss & ((1<<(m_paddr_nbits - PAGE_K_NBITS))-1)) << PAGE_K_NBITS \| (paddr_t)(((dreq.addr & PTD_ID2_MASK) >> PAGE_K_NBITS) << 3),&data))
3578	{
3579	r_dcache_tlb_ll_dirty_req = true;
3580	r_dcache_fsm = DCACHE_LL_DIRTY_WAIT;
3581	//m_cpt_dcache_data_write++;
3582	m_cpt_data_tlb_update_dirty++;
3583	m_cost_data_tlb_update_dirty_frz++;
3584	}
3585	else
3586	{
3587	r_dcache_fsm = DCACHE_IDLE;
3588	}
3589	}
3590	else
3591	{
3592	r_dcache_fsm = DCACHE_DTLB2_READ_CACHE;
3593	}
3594	}
3595	else // PTE
3596	{
3597	r_dcache_ptba_ok = false;
3598	if ( (m_srcid_rw >> 4) == ((r_dcache_tlb_paddr.read() & ((1<<(m_paddr_nbits - PAGE_M_NBITS))-1)) >> (m_paddr_nbits - PAGE_M_NBITS -10)) ) // local
3599	{
3600	if ( (rsp_dtlb_miss & PTE_L_MASK ) >> PTE_L_SHIFT ) // L bit is set
3601	{
3602	r_dcache_pte_update = rsp_dtlb_miss;
3603	r_dcache_fsm = DCACHE_TLB1_UPDT;
3604	}
3605	else
3606	{
3607	r_dcache_pte_update = rsp_dtlb_miss \| PTE_L_MASK;
3608	r_dcache_tlb_ll_acc_req = true;
3609	r_dcache_fsm = DCACHE_TLB1_LL_WAIT;
3610	m_cpt_data_tlb_update_acc++;
3611	m_cost_data_tlb_update_acc_frz++;
3612	}
3613	}
3614	else // remotely
3615	{
3616	if ( (rsp_dtlb_miss & PTE_R_MASK ) >> PTE_R_SHIFT ) // R bit is set
3617	{
3618	r_dcache_pte_update = rsp_dtlb_miss;
3619	r_dcache_fsm = DCACHE_TLB1_UPDT;
3620	}
3621	else
3622	{
3623	r_dcache_pte_update = rsp_dtlb_miss \| PTE_R_MASK;
3624	r_dcache_tlb_ll_acc_req = true;
3625	r_dcache_fsm = DCACHE_TLB1_LL_WAIT;
3626	m_cpt_data_tlb_update_acc++;
3627	m_cost_data_tlb_update_acc_frz++;
3628	}
3629	}
3630	}
3631	}
3632	break;
3633	}
3634	//////////////////////
3635	case DCACHE_TLB1_UPDT:
3636	{
3637	m_cost_data_tlb_miss_frz++;
3638
3639	// external cache invalidate request
3640	if ( r_tgt_dcache_req )
3641	{
3642	r_dcache_fsm = DCACHE_CC_CHECK;
3643	r_dcache_fsm_save = r_dcache_fsm;
3644	break;
3645	}
3646
3647	if ( !r_dcache_inval_tlb_rsp && !r_dcache_inval_rsp )
3648	{
3649	paddr_t victim_index = 0;
3650	if (dcache_tlb.update(r_dcache_pte_update,dreq.addr,(r_dcache_tlb_paddr.read() >> (uint32_log2(m_dcache_words)+2)),&victim_index))
3651	{
3652	r_dcache.setinbit((paddr_t)victim_index << (uint32_log2(m_dcache_words)+2), r_dcache_in_dtlb, false);
3653	}
3654	bool set_hit = r_dcache.setinbit(r_dcache_tlb_paddr, r_dcache_in_dtlb, true);
3655	assert(set_hit && "TLB1_UPDT set hit error");
3656	r_dcache_fsm = DCACHE_IDLE;
3657	}
3658	else
3659	{
3660	if ( r_dcache_inval_tlb_rsp ) r_dcache_inval_tlb_rsp = false;
3661	if ( r_dcache_inval_rsp ) r_dcache_inval_rsp = false;
3662	r_dcache_fsm = DCACHE_IDLE;
3663	}
3664	break;
3665	}
3666	/////////////////////////////
3667	case DCACHE_DTLB2_READ_CACHE:
3668	{
3669	m_cost_data_tlb_miss_frz++;
3670
3671	// external cache invalidate request
3672	if ( r_tgt_dcache_req )
3673	{
3674	r_dcache_fsm = DCACHE_CC_CHECK;
3675	r_dcache_fsm_save = r_dcache_fsm;
3676	break;
3677	}
3678
3679	// Using tlb entry is invalidated
3680	if ( r_dcache_inval_tlb_rsp )
3681	{
3682	r_dcache_inval_tlb_rsp = false;
3683	r_dcache_fsm = DCACHE_IDLE;
3684	break;
3685	}
3686
3687	data_t tlb_data = 0;
3688	data_t tlb_data_ppn = 0;
3689	bool tlb_hit_cache = r_dcache.read(r_dcache_tlb_paddr, &tlb_data);
3690
3691	if ( tlb_hit_cache )
3692	{
3693	bool tlb_hit_ppn = r_dcache.read(r_dcache_tlb_paddr.read()+4, &tlb_data_ppn);
3694	assert(tlb_hit_ppn && "Address of pte[64-32] and pte[31-0] should be successive");
3695	}
3696
3697	// DTLB request hit in cache
3698	if ( tlb_hit_cache )
3699	{
3700	if ( !(tlb_data >> PTE_V_SHIFT) ) // unmapped
3701	{
3702	if ((r_dcache_type_save == iss_t::DATA_READ)\|\|(r_dcache_type_save == iss_t::DATA_LL))
3703	{
3704	r_dcache_error_type = MMU_READ_PT2_UNMAPPED;
3705	}
3706	else /if ((dreq.type == iss_t::DATA_WRITE)\|\|(dreq.type == iss_t::DATA_SC))/
3707	{
3708	r_dcache_error_type = MMU_WRITE_PT2_UNMAPPED;
3709	}
3710	r_dcache_bad_vaddr = dreq.addr;
3711	r_dcache_fsm = DCACHE_ERROR;
3712	}
3713	else if ( (tlb_data & PTE_T_MASK) >> PTE_T_SHIFT ) //PTD
3714	{
3715	r_dcache_pte_update = tlb_data;
3716	r_dcache_ppn_update = tlb_data_ppn;
3717	r_dcache_fsm = DCACHE_TLB2_UPDT;
3718	}
3719	else
3720	{
3721	m_cpt_data_tlb_hit_dcache++;
3722	if ( (m_srcid_rw >> 4) == ((r_dcache_tlb_paddr.read() & ((1<<(m_paddr_nbits - PAGE_M_NBITS))-1)) >> (m_paddr_nbits - PAGE_M_NBITS -10)) ) // local
3723	{
3724	if ( (tlb_data & PTE_L_MASK ) >> PTE_L_SHIFT ) // L bit is set
3725	{
3726	r_dcache_pte_update = tlb_data;
3727	r_dcache_ppn_update = tlb_data_ppn;
3728	r_dcache_fsm = DCACHE_TLB2_UPDT;
3729	}
3730	else
3731	{
3732	r_dcache_pte_update = tlb_data \| PTE_L_MASK;
3733	r_dcache_ppn_update = tlb_data_ppn;
3734	r_dcache_tlb_ll_acc_req = true;
3735	r_dcache_fsm = DCACHE_TLB2_LL_WAIT;
3736	m_cpt_data_tlb_update_acc++;
3737	m_cost_data_tlb_update_acc_frz++;
3738	}
3739	}
3740	else // remotely
3741	{
3742	if ( (tlb_data & PTE_R_MASK ) >> PTE_R_SHIFT ) // R bit is set
3743	{
3744	r_dcache_pte_update = tlb_data;
3745	r_dcache_ppn_update = tlb_data_ppn;
3746	r_dcache_fsm = DCACHE_TLB2_UPDT;
3747	}
3748	else
3749	{
3750	r_dcache_pte_update = tlb_data \| PTE_R_MASK;
3751	r_dcache_ppn_update = tlb_data_ppn;
3752	r_dcache_tlb_ll_acc_req = true;
3753	r_dcache_fsm = DCACHE_TLB2_LL_WAIT;
3754	m_cpt_data_tlb_update_acc++;
3755	m_cost_data_tlb_update_acc_frz++;
3756	}
3757	}
3758	}
3759	}
3760	else
3761	{
3762	// DTLB request miss in cache and walk page table level 2
3763	r_dcache_tlb_read_req = true;
3764	r_dcache_fsm = DCACHE_TLB2_READ;
3765	}
3766	break;
3767	}
3768	///////////////////////
3769	case DCACHE_TLB2_LL_WAIT:
3770	{
3771	if ( dreq.valid ) m_cost_data_tlb_miss_frz++;
3772	m_cost_data_tlb_update_acc_frz++;
3773
3774	// external cache invalidate request
3775	if ( r_tgt_dcache_req )
3776	{
3777	r_dcache_fsm = DCACHE_CC_CHECK;
3778	r_dcache_fsm_save = r_dcache_fsm;
3779	break;
3780	}
3781
3782	if (!r_dcache_tlb_ll_acc_req)
3783	{
3784	if ( r_vci_rsp_data_error ) // VCI response ko
3785	{
3786	if ((r_dcache_type_save == iss_t::DATA_READ)\|\|(r_dcache_type_save == iss_t::DATA_LL))
3787	{
3788	r_dcache_error_type = MMU_READ_PT2_ILLEGAL_ACCESS;
3789	}
3790	else /if ((dreq.type == iss_t::DATA_WRITE)\|\|(dreq.type == iss_t::DATA_SC))/
3791	{
3792	r_dcache_error_type = MMU_WRITE_PT2_ILLEGAL_ACCESS;
3793	}
3794	r_dcache_bad_vaddr = dreq.addr;
3795	r_dcache_fsm = DCACHE_ERROR;
3796
3797	if (r_dcache_inval_tlb_rsp) r_dcache_inval_tlb_rsp = false;
3798	if (r_dcache_inval_rsp) r_dcache_inval_rsp = false;
3799	}
3800	else
3801	{
3802	if ( !(r_dcache_miss_buf[0] >> PTE_V_SHIFT) ) // unmapped
3803	{
3804	if ((r_dcache_type_save == iss_t::DATA_READ)\|\|(r_dcache_type_save == iss_t::DATA_LL))
3805	{
3806	r_dcache_error_type = MMU_READ_PT2_UNMAPPED;
3807	}
3808	else /if ((dreq.type == iss_t::DATA_WRITE)\|\|(dreq.type == iss_t::DATA_SC))/
3809	{
3810	r_dcache_error_type = MMU_WRITE_PT2_UNMAPPED;
3811	}
3812	r_dcache_bad_vaddr = dreq.addr;
3813	r_dcache_fsm = DCACHE_ERROR;
3814
3815	if (r_dcache_inval_tlb_rsp) r_dcache_inval_tlb_rsp = false;
3816	if (r_dcache_inval_rsp) r_dcache_inval_rsp = false;
3817	}
3818	else if ( r_dcache_inval_tlb_rsp )
3819	{
3820	r_dcache_inval_tlb_rsp = false;
3821	r_dcache_fsm = DCACHE_IDLE;
3822	}
3823	else if ( r_dcache_inval_rsp )
3824	{
3825	r_dcache_inval_rsp = false;
3826	r_dcache_fsm = DCACHE_IDLE;
3827	}
3828	else
3829	{
3830	r_dcache_tlb_sc_acc_req = true;
3831	r_dcache_pte_update = r_dcache_miss_buf[0] \| r_dcache_pte_update.read();
3832	r_dcache_fsm = DCACHE_TLB2_SC_WAIT;
3833	}
3834	}
3835	}
3836	break;
3837	}
3838	///////////////////////
3839	case DCACHE_TLB2_SC_WAIT:
3840	{
3841	if ( dreq.valid ) m_cost_data_tlb_miss_frz++;
3842	m_cost_data_tlb_update_acc_frz++;
3843	// external cache invalidate request
3844	if ( r_tgt_dcache_req )
3845	{
3846	r_dcache_fsm = DCACHE_CC_CHECK;
3847	r_dcache_fsm_save = r_dcache_fsm;
3848	break;
3849	}
3850
3851	if ( !r_dcache_tlb_sc_acc_req )
3852	{
3853	if ( r_vci_rsp_data_error ) // VCI response ko
3854	{
3855	if ((r_dcache_type_save == iss_t::DATA_READ)\|\|(r_dcache_type_save == iss_t::DATA_LL))
3856	{
3857	r_dcache_error_type = MMU_READ_PT2_ILLEGAL_ACCESS;
3858	}
3859	else /if ((dreq.type == iss_t::DATA_WRITE)\|\|(dreq.type == iss_t::DATA_SC))/
3860	{
3861	r_dcache_error_type = MMU_WRITE_PT2_ILLEGAL_ACCESS;
3862	}
3863	r_dcache_bad_vaddr = dreq.addr;
3864	r_dcache_fsm = DCACHE_ERROR;
3865
3866	if (r_dcache_inval_tlb_rsp) r_dcache_inval_tlb_rsp = false;
3867	if (r_dcache_inval_rsp) r_dcache_inval_rsp = false;
3868	}
3869	else
3870	{
3871	// Using tlb entry is invalidated
3872	if ( r_dcache_inval_tlb_rsp )
3873	{
3874	r_dcache_inval_tlb_rsp = false;
3875	if (r_dcache_tlb_sc_fail) r_dcache_tlb_sc_fail = false;
3876	r_dcache_fsm = DCACHE_IDLE;
3877	}
3878	else if ( r_dcache_inval_rsp )
3879	{
3880	r_dcache_inval_rsp = false;
3881	if (r_dcache_tlb_sc_fail) r_dcache_tlb_sc_fail = false;
3882	r_dcache_fsm = DCACHE_IDLE;
3883	}
3884	else if ( r_dcache_tlb_sc_fail )
3885	{
3886	r_dcache_tlb_ll_acc_req = true;
3887	r_dcache_tlb_sc_fail = false;
3888	r_dcache_fsm = DCACHE_TLB2_LL_WAIT;
3889	m_cpt_data_tlb_update_acc++;
3890	}
3891	else
3892	{
3893	bool write_hit = r_dcache.write(r_dcache_tlb_paddr,r_dcache_pte_update);
3894	assert(write_hit && "Write on miss ignores data for data MMU update data access bit");
3895	r_dcache_fsm = DCACHE_TLB2_UPDT;
3896	m_cpt_dcache_data_write++;
3897	}
3898	}
3899	}
3900	break;
3901	}
3902	/////////////////////
3903	case DCACHE_TLB2_READ:
3904	{
3905	m_cost_data_tlb_miss_frz++;
3906
3907	// external cache invalidate request
3908	if ( r_tgt_dcache_req )
3909	{
3910	r_dcache_fsm = DCACHE_CC_CHECK;
3911	r_dcache_fsm_save = r_dcache_fsm;
3912	break;
3913	}
3914
3915	if ( !r_dcache_tlb_read_req )
3916	{
3917	if ( r_vci_rsp_data_error ) // VCI response ko
3918	{
3919	if ((r_dcache_type_save == iss_t::DATA_READ)\|\|(r_dcache_type_save == iss_t::DATA_LL))
3920	{
3921	r_dcache_error_type = MMU_READ_PT2_ILLEGAL_ACCESS;
3922	}
3923	else /if ((dreq.type == iss_t::DATA_WRITE)\|\|(dreq.type == iss_t::DATA_SC))/
3924	{
3925	r_dcache_error_type = MMU_WRITE_PT2_ILLEGAL_ACCESS;
3926	}
3927	r_dcache_bad_vaddr = dreq.addr;
3928	r_dcache_fsm = DCACHE_ERROR;
3929
3930	if (r_dcache_inval_tlb_rsp) r_dcache_inval_tlb_rsp = false;
3931	if (r_dcache_inval_rsp) r_dcache_inval_rsp = false;
3932	break;
3933	}
3934
3935	if ( r_dcache_inval_tlb_rsp ) // TLB miss response and invalidation
3936	{
3937	r_dcache_fsm = DCACHE_IDLE;
3938	r_dcache_inval_tlb_rsp = false;
3939	break;
3940	}
3941
3942	if ( r_dcache_inval_rsp ) // TLB miss response and cache invalidation
3943	{
3944	if ( r_dcache_cleanup_req ) break;
3945	r_dcache_cleanup_req = true;
3946	r_dcache_cleanup_line = r_dcache_tlb_paddr.read() >> (uint32_log2(m_dcache_words) + 2);
3947	m_cpt_cc_cleanup_data++;
3948	r_dcache_fsm = DCACHE_IDLE;
3949	r_dcache_inval_rsp = false;
3950	break;
3951	}
3952
3953	// TLB miss response and no invalidation
3954	r_dcache_fsm = DCACHE_TLB2_READ_UPDT;
3955	}
3956	break;
3957	}
3958	//////////////////////////
3959	case DCACHE_TLB2_READ_UPDT:
3960	{
3961	m_cost_data_tlb_miss_frz++;
3962
3963	// external cache invalidate request
3964	if ( r_tgt_dcache_req )
3965	{
3966	r_dcache_fsm = DCACHE_CC_CHECK;
3967	r_dcache_fsm_save = r_dcache_fsm;
3968	break;
3969	}
3970
3971	// Using tlb entry is invalidated
3972	if ( r_dcache_inval_tlb_rsp )
3973	{
3974	r_dcache_inval_tlb_rsp = false;
3975	r_dcache_fsm = DCACHE_IDLE;
3976	break;
3977	}
3978
3979	if ( !r_dcache_cleanup_req )
3980	{
3981	// update cache
3982	data_t rsp_dtlb_miss;
3983	data_t tlb_data_ppn;
3984	//bool write_hit = false;
3985	paddr_t victim_index = 0;
3986	size_t way = 0;
3987	size_t set = 0;
3988
3989	// Using tlb entry is in the invalidated cache line
3990	if ( r_dcache_inval_rsp )
3991	{
3992	r_dcache_cleanup_req = true;
3993	r_dcache_cleanup_line = r_dcache_tlb_paddr.read() >> (uint32_log2(m_dcache_words) + 2);
3994	m_cpt_cc_cleanup_data++;
3995	r_dcache_fsm = DCACHE_IDLE;
3996	r_dcache_inval_rsp = false;
3997	break;
3998	}
3999
4000	bool cleanup_req = r_dcache.find(r_dcache_tlb_paddr, r_dcache_in_itlb, r_dcache_in_dtlb, &way, &set, &victim_index);
4001
4002	if ( cleanup_req )
4003	{
4004	// ins tlb invalidate verification
4005	r_dcache_itlb_inval_req = r_dcache_in_itlb[m_dcache_sets*way+set];
4006	r_dcache_itlb_inval_line = victim_index;
4007	r_dcache_in_itlb[way*m_dcache_sets+set] = false;
4008
4009	// data tlb invalidate verification
4010	r_dcache_dtlb_inval_req = r_dcache_in_dtlb[m_dcache_sets*way+set];
4011	r_dcache_dtlb_inval_line = victim_index;
4012	r_dcache_in_dtlb[way*m_dcache_sets+set] = false;
4013
4014	r_dcache_cleanup_req = true;
4015	r_dcache_cleanup_line = victim_index;
4016	m_cpt_cc_cleanup_data++;
4017	r_dcache_fsm = DCACHE_TLB_CC_INVAL;
4018	r_dcache_fsm_save = r_dcache_fsm;
4019	break;
4020	}
4021
4022	r_dcache.update(r_dcache_tlb_paddr, way, set, r_dcache_miss_buf);
4023	r_dcache.read(r_dcache_tlb_paddr, &rsp_dtlb_miss);
4024	m_cpt_data_tlb_occup_cache++;
4025
4026	bool tlb_hit_ppn = r_dcache.read(r_dcache_tlb_paddr.read()+4, &tlb_data_ppn);
4027	assert(tlb_hit_ppn && "Address of pte[64-32] and pte[31-0] should be successive");
4028
4029	if ( !(rsp_dtlb_miss >> PTE_V_SHIFT) ) // unmapped
4030	{
4031	if ((r_dcache_type_save == iss_t::DATA_READ)\|\|(r_dcache_type_save == iss_t::DATA_LL))
4032	{
4033	r_dcache_error_type = MMU_READ_PT2_UNMAPPED;
4034	}
4035	else /if ((dreq.type == iss_t::DATA_WRITE)\|\|(dreq.type == iss_t::DATA_SC))/
4036	{
4037	r_dcache_error_type = MMU_WRITE_PT2_UNMAPPED;
4038	}
4039	r_dcache_bad_vaddr = dreq.addr;
4040	r_dcache_fsm = DCACHE_ERROR;
4041	}
4042	else if ( (rsp_dtlb_miss & PTE_T_MASK) >> PTE_T_SHIFT ) // PTD
4043	{
4044	r_dcache_pte_update = rsp_dtlb_miss;
4045	r_dcache_ppn_update = tlb_data_ppn;
4046	r_dcache_fsm = DCACHE_TLB2_UPDT;
4047	}
4048	else
4049	{
4050	if ( (m_srcid_rw >> 4) == ((r_dcache_tlb_paddr.read() & ((1<<(m_paddr_nbits - PAGE_M_NBITS))-1)) >> (m_paddr_nbits - PAGE_M_NBITS -10)) ) // local
4051	{
4052	if ( (rsp_dtlb_miss & PTE_L_MASK ) >> PTE_L_SHIFT ) // L bit is set
4053	{
4054	r_dcache_pte_update = rsp_dtlb_miss;
4055	r_dcache_ppn_update = tlb_data_ppn;
4056	r_dcache_fsm = DCACHE_TLB2_UPDT;
4057	}
4058	else
4059	{
4060	r_dcache_pte_update = rsp_dtlb_miss \| PTE_L_MASK;
4061	r_dcache_ppn_update = tlb_data_ppn;
4062	r_dcache_tlb_ll_acc_req = true;
4063	r_dcache_fsm = DCACHE_TLB2_LL_WAIT;
4064	m_cpt_data_tlb_update_acc++;
4065	m_cost_data_tlb_update_acc_frz++;
4066	}
4067	}
4068	else // remotely
4069	{
4070	if ( (rsp_dtlb_miss & PTE_R_MASK ) >> PTE_R_SHIFT ) // R bit is set
4071	{
4072	r_dcache_pte_update = rsp_dtlb_miss;
4073	r_dcache_ppn_update = tlb_data_ppn;
4074	r_dcache_fsm = DCACHE_TLB2_UPDT;
4075	}
4076	else
4077	{
4078	r_dcache_pte_update = rsp_dtlb_miss \| PTE_R_MASK;
4079	r_dcache_ppn_update = tlb_data_ppn;
4080	r_dcache_tlb_ll_acc_req = true;
4081	r_dcache_fsm = DCACHE_TLB2_LL_WAIT;
4082	m_cpt_data_tlb_update_acc++;
4083	m_cost_data_tlb_update_acc_frz++;
4084	}
4085	}
4086	}
4087	}
4088	break;
4089	}
4090	//////////////////////
4091	case DCACHE_TLB2_UPDT:
4092	{
4093	m_cost_data_tlb_miss_frz++;
4094
4095	// external cache invalidate request
4096	if ( r_tgt_dcache_req )
4097	{
4098	r_dcache_fsm = DCACHE_CC_CHECK;
4099	r_dcache_fsm_save = r_dcache_fsm;
4100	break;
4101	}
4102
4103	if ( !r_dcache_inval_tlb_rsp && !r_dcache_inval_rsp )
4104	{
4105	paddr_t victim_index = 0;
4106	if (dcache_tlb.update(r_dcache_pte_update,r_dcache_ppn_update,dreq.addr,(r_dcache_tlb_paddr.read() >> (uint32_log2(m_dcache_words)+2)),&victim_index))
4107	{
4108	r_dcache.setinbit((paddr_t)victim_index << (uint32_log2(m_dcache_words)+2), r_dcache_in_dtlb, false);
4109	}
4110	bool set_hit = r_dcache.setinbit(r_dcache_tlb_paddr, r_dcache_in_dtlb, true);
4111	assert(set_hit && "TLB2_UPDT set hit error");
4112	r_dcache_fsm = DCACHE_IDLE;
4113	}
4114	else
4115	{
4116	if ( r_dcache_inval_tlb_rsp ) r_dcache_inval_tlb_rsp = false;
4117	if ( r_dcache_inval_rsp ) r_dcache_inval_rsp = false;
4118	r_dcache_fsm = DCACHE_IDLE;
4119	}
4120	break;
4121	}
4122	///////////////////////
4123	case DCACHE_CTXT_SWITCH:
4124	{
4125	// TLB flush leads to cleanup corresponding data cache line
4126	paddr_t victim_index = 0;
4127	size_t way = 0;
4128	size_t set = 0;
4129
4130	if ( r_dcache_itlb_cleanup_req )
4131	{
4132	r_dcache.setinbit(((paddr_t)r_dcache_itlb_cleanup_line.read() << (uint32_log2(m_dcache_words)+2)), r_dcache_in_itlb, false);
4133	r_dcache_itlb_cleanup_req = false;
4134	}
4135
4136	for ( way = 0; way < m_dtlb_ways; way++)
4137	{
4138	for ( set = 0; set < m_dtlb_sets; set++)
4139	{
4140	if(dcache_tlb.checkcleanup(way, set, &victim_index))
4141	{
4142	r_dcache.setinbit((paddr_t)(victim_index << (uint32_log2(m_dcache_words)+2)), r_dcache_in_dtlb, false);
4143	}
4144	}
4145	}
4146
4147	if ( !r_dcache_xtn_req )
4148	{
4149	r_dcache_fsm = DCACHE_IDLE;
4150	r_dtlb_translation_valid = false;
4151	r_dcache_ptba_ok = false;
4152	drsp.valid = true;
4153	}
4154	break;
4155	}
4156	////////////////////////
4157	case DCACHE_ICACHE_FLUSH:
4158	case DCACHE_ICACHE_INVAL:
4159	case DCACHE_ICACHE_INVAL_PA:
4160	case DCACHE_ITLB_INVAL:
4161	{
4162	// external cache invalidate request
4163	if ( r_tgt_dcache_req )
4164	{
4165	r_dcache_fsm = DCACHE_CC_CHECK;
4166	r_dcache_fsm_save = r_dcache_fsm;
4167	break;
4168	}
4169	if ( !r_dcache_xtn_req )
4170	{
4171	r_dcache_fsm = DCACHE_IDLE;
4172	drsp.valid = true;
4173	}
4174	break;
4175	}
4176	////////////////////////
4177	case DCACHE_DCACHE_FLUSH:
4178	{
4179	// external cache invalidate request
4180	if ( r_tgt_dcache_req )
4181	{
4182	r_dcache_fsm = DCACHE_CC_CHECK;
4183	r_dcache_fsm_save = r_dcache_fsm;
4184	break;
4185	}
4186	size_t way = r_dcache_way;
4187	size_t set = r_dcache_set;
4188	bool clean = false;
4189
4190	// cache flush and send cleanup to external
4191	if ( !r_dcache_cleanup_req )
4192	{
4193	paddr_t victim_index = 0;
4194	for ( ; way < m_dcache_ways; way++ )
4195	{
4196	for ( ; set < m_dcache_sets; set++ )
4197	{
4198	if ( r_dcache.flush(way, set, &victim_index) )
4199	{
4200	clean = true;
4201	r_dcache_cleanup_req = true;
4202	r_dcache_cleanup_line = victim_index;
4203	m_cpt_cc_cleanup_data++;
4204	r_dcache_way = way + ((set+1)/m_dcache_sets);
4205	r_dcache_set = (set+1) % m_dcache_sets;
4206	break;
4207	}
4208	}
4209	if (clean) break;
4210	set = 0;
4211	}
4212
4213	if ((way == m_dcache_ways) && !r_dcache_xtn_req )
4214	{
4215	// data TLB flush
4216	dcache_tlb.flush(true); // global entries are invalidated
4217	r_dtlb_translation_valid = false;
4218	r_dcache_ptba_ok = false;
4219
4220	for (size_t line = 0; line < m_dcache_ways*m_dcache_sets; line++)
4221	{
4222	r_dcache_in_itlb[line] = false;
4223	r_dcache_in_dtlb[line] = false;
4224	}
4225
4226	r_dcache_fsm = DCACHE_IDLE;
4227	drsp.valid = true;
4228	break;
4229	}
4230	}
4231	break;
4232	}
4233	//////////////////////
4234	case DCACHE_DTLB_INVAL:
4235	{
4236	paddr_t victim_index = 0;
4237	// clean indicate data tlb bit
4238	if ( dcache_tlb.inval(r_dcache_wdata_save, &victim_index) )
4239	{
4240	r_dcache.setinbit((paddr_t)(victim_index << (uint32_log2(m_dcache_words)+2)), r_dcache_in_dtlb, false);
4241	}
4242	r_dtlb_translation_valid = false;
4243	r_dcache_ptba_ok = false;
4244	r_dcache_fsm = DCACHE_IDLE;
4245	drsp.valid = true;
4246	break;
4247	}
4248	////////////////////////
4249	case DCACHE_DCACHE_INVAL:
4250	{
4251	// external cache invalidate request
4252	if ( r_tgt_dcache_req )
4253	{
4254	r_dcache_fsm = DCACHE_CC_CHECK;
4255	r_dcache_fsm_save = r_dcache_fsm;
4256	break;
4257	}
4258
4259	m_cpt_dcache_dir_read += m_dcache_ways;
4260	vaddr_t invadr = dreq.wdata;
4261	paddr_t dpaddr = 0;
4262	bool dcache_hit_t = false;
4263	size_t way = 0;
4264	size_t set = 0;
4265
4266	if ( !r_dcache_cleanup_req )
4267	{
4268	if ( r_mmu_mode.read() & DATA_TLB_MASK )
4269	{
4270	dcache_hit_t = dcache_tlb.translate(invadr, &dpaddr);
4271	}
4272	else
4273	{
4274	dpaddr = invadr;
4275	dcache_hit_t = true;
4276	}
4277
4278	if ( dcache_hit_t )
4279	{
4280	r_dcache_cleanup_req = r_dcache.inval(dpaddr, &way, &set);
4281	r_dcache_cleanup_line = dpaddr >> (uint32_log2(m_dcache_words)+2);
4282	m_cpt_cc_cleanup_data++;
4283
4284	if ( r_dcache_in_itlb[waym_dcache_sets+set] \|\| r_dcache_in_dtlb[waym_dcache_sets+set] )
4285	{
4286	// ins tlb invalidate verification
4287	r_dcache_itlb_inval_req = r_dcache_in_itlb[way*m_dcache_sets+set];
4288	r_dcache_itlb_inval_line = dpaddr >> (uint32_log2(m_dcache_words)+2);
4289	r_dcache_in_itlb[way*m_dcache_sets+set] = false;
4290
4291	// data tlb invalidate verification
4292	r_dcache_dtlb_inval_req = r_dcache_in_dtlb[way*m_dcache_sets+set];
4293	r_dcache_dtlb_inval_line = dpaddr >> (uint32_log2(m_dcache_words)+2);
4294	r_dcache_in_dtlb[way*m_dcache_sets+set] = false;
4295	r_dcache_fsm = DCACHE_TLB_CC_INVAL;
4296	r_dcache_fsm_save = r_dcache_fsm;
4297	break;
4298	}
4299	}
4300	r_dcache_fsm = DCACHE_IDLE;
4301	drsp.valid = true;
4302	}
4303	break;
4304	}
4305	////////////////////////
4306	case DCACHE_DCACHE_INVAL_PA:
4307	{
4308	// external cache invalidate request
4309	if ( r_tgt_dcache_req )
4310	{
4311	r_dcache_fsm = DCACHE_CC_CHECK;
4312	r_dcache_fsm_save = r_dcache_fsm;
4313	break;
4314	}
4315	m_cpt_dcache_dir_read += m_dcache_ways;
4316	paddr_t dpaddr = (paddr_t)r_mmu_word_hi.read() << 32 \| r_mmu_word_lo.read();
4317	size_t way = 0;
4318	size_t set = 0;
4319
4320	if ( !r_dcache_cleanup_req )
4321	{
4322	r_dcache_cleanup_req = r_dcache.inval(dpaddr, &way, &set);
4323	r_dcache_cleanup_line = dpaddr >> (uint32_log2(m_dcache_words)+2);
4324	m_cpt_cc_cleanup_data++;
4325
4326	if ( r_dcache_in_itlb[waym_dcache_sets+set] \|\| r_dcache_in_dtlb[waym_dcache_sets+set] )
4327	{
4328	// ins tlb invalidate verification
4329	r_dcache_itlb_inval_req = r_dcache_in_itlb[way*m_dcache_sets+set];
4330	r_dcache_itlb_inval_line = dpaddr >> (uint32_log2(m_dcache_words)+2);
4331	r_dcache_in_itlb[way*m_dcache_sets+set] = false;
4332
4333	// data tlb invalidate verification
4334	r_dcache_dtlb_inval_req = r_dcache_in_dtlb[way*m_dcache_sets+set];
4335	r_dcache_dtlb_inval_line = dpaddr >> (uint32_log2(m_dcache_words)+2);
4336	r_dcache_in_dtlb[way*m_dcache_sets+set] = false;
4337	r_dcache_fsm = DCACHE_TLB_CC_INVAL;
4338	r_dcache_fsm_save = r_dcache_fsm;
4339	break;
4340	}
4341	r_dcache_fsm = DCACHE_IDLE;
4342	drsp.valid = true;
4343	}
4344	break;
4345	}
4346	/////////////////////////
4347	case DCACHE_DCACHE_SYNC:
4348	{
4349	// external cache invalidate request
4350	if ( r_tgt_dcache_req )
4351	{
4352	r_dcache_fsm = DCACHE_CC_CHECK;
4353	r_dcache_fsm_save = r_dcache_fsm;
4354	break;
4355	}
4356	if ( !r_dcache_write_req )
4357	{
4358	r_dcache_write_req = r_wbuf.rok();
4359	drsp.valid = true;
4360	r_dcache_fsm = DCACHE_IDLE;
4361	}
4362	break;
4363	}
4364	/////////////////////
4365	case DCACHE_MISS_WAIT:
4366	{
4367	m_cost_data_miss_frz++;
4368
4369	// external cache invalidate request
4370	if ( r_tgt_dcache_req )
4371	{
4372	r_dcache_fsm = DCACHE_CC_CHECK;
4373	r_dcache_fsm_save = r_dcache_fsm;
4374	break;
4375	}
4376
4377	if ( !r_dcache_miss_req )
4378	{
4379	if ( r_vci_rsp_data_error )
4380	{
4381	r_dcache_error_type = MMU_READ_DATA_ILLEGAL_ACCESS;
4382	r_dcache_bad_vaddr = dreq.addr;
4383	r_dcache_fsm = DCACHE_ERROR;
4384
4385	if (r_dcache_inval_tlb_rsp) r_dcache_inval_tlb_rsp = false;
4386	if (r_dcache_inval_rsp) r_dcache_inval_rsp = false;
4387	break;
4388	}
4389
4390	if ( r_dcache_inval_tlb_rsp ) // Miss read response and tlb invalidation
4391	{
4392	if ( r_dcache_cleanup_req ) break;
4393	r_dcache_cleanup_req = true;
4394	r_dcache_cleanup_line = r_dcache_paddr_save.read() >> (uint32_log2(m_dcache_words) + 2);
4395	m_cpt_cc_cleanup_data++;
4396	r_dcache_fsm = DCACHE_IDLE;
4397	r_dcache_inval_tlb_rsp = false;
4398	if ( r_dcache_inval_rsp ) r_dcache_inval_rsp = false;
4399	break;
4400	}
4401
4402	if ( r_dcache_inval_rsp ) // TLB miss response and cache invalidation
4403	{
4404	if ( r_dcache_cleanup_req ) break;
4405	r_dcache_cleanup_req = true;
4406	r_dcache_cleanup_line = r_dcache_paddr_save.read() >> (uint32_log2(m_dcache_words) + 2);
4407	m_cpt_cc_cleanup_data++;
4408	r_dcache_fsm = DCACHE_IDLE;
4409	r_dcache_inval_rsp = false;
4410	break;
4411	}
4412	// Miss read response and no tlb invalidation
4413	r_dcache_fsm = DCACHE_MISS_UPDT;
4414	}
4415	break;
4416	}
4417	/////////////////////
4418	case DCACHE_MISS_UPDT:
4419	{
4420	m_cost_data_miss_frz++;
4421
4422	// external cache invalidate request
4423	if ( r_tgt_dcache_req )
4424	{
4425	r_dcache_fsm = DCACHE_CC_CHECK;
4426	r_dcache_fsm_save = r_dcache_fsm;
4427	break;
4428	}
4429
4430	if ( r_dcache_inval_tlb_rsp ) // tlb invalidation
4431	{
4432	if ( r_dcache_cleanup_req ) break;
4433	r_dcache_cleanup_req = true;
4434	r_dcache_cleanup_line = r_dcache_paddr_save.read() >> (uint32_log2(m_dcache_words) + 2);
4435	m_cpt_cc_cleanup_data++;
4436	r_dcache_inval_tlb_rsp = false;
4437	r_dcache_inval_rsp = false;
4438	r_dcache_fsm = DCACHE_IDLE;
4439	break;
4440	}
4441
4442	if (!r_dcache_cleanup_req ) // Miss update and no invalidation
4443	{
4444	paddr_t victim_index = 0;
4445	size_t way = 0;
4446	size_t set = 0;
4447
4448	// Using tlb entry is in the invalidated cache line
4449	if ( r_dcache_inval_rsp )
4450	{
4451	r_dcache_cleanup_req = true;
4452	r_dcache_cleanup_line = r_dcache_paddr_save.read() >> (uint32_log2(m_dcache_words) + 2);
4453	m_cpt_cc_cleanup_data++;
4454	r_dcache_fsm = DCACHE_IDLE;
4455	r_dcache_inval_rsp = false;
4456	break;
4457	}
4458
4459	bool cleanup_req = r_dcache.find(r_dcache_paddr_save.read(), r_dcache_in_itlb, r_dcache_in_dtlb, &way, &set, &victim_index);
4460
4461	if ( cleanup_req )
4462	{
4463	// ins tlb invalidate verification
4464	r_dcache_itlb_inval_req = r_dcache_in_itlb[m_dcache_sets*way+set];
4465	r_dcache_itlb_inval_line = victim_index;
4466
4467	// data tlb invalidate verification
4468	r_dcache_dtlb_inval_req = r_dcache_in_dtlb[m_dcache_sets*way+set];
4469	r_dcache_dtlb_inval_line = victim_index;
4470
4471	r_dcache_cleanup_req = true;
4472	r_dcache_cleanup_line = victim_index;
4473	m_cpt_cc_cleanup_data++;
4474
4475	if ( r_dcache_in_itlb[m_dcache_setsway+set] \|\| r_dcache_in_dtlb[m_dcache_setsway+set] )
4476	{
4477	r_dcache_fsm = DCACHE_TLB_CC_INVAL;
4478	r_dcache_fsm_save = r_dcache_fsm;
4479	r_dcache_in_itlb[way*m_dcache_sets+set] = false;
4480	r_dcache_in_dtlb[way*m_dcache_sets+set] = false;
4481	break;
4482	}
4483	}
4484	m_cpt_dcache_dir_write++;
4485	m_cpt_dcache_data_write++;
4486	r_dcache.update(r_dcache_paddr_save.read(), way, set, r_dcache_miss_buf);
4487	r_dcache_fsm = DCACHE_IDLE;
4488	}
4489	break;
4490	}
4491	//////////////////////
4492	case DCACHE_UNC_WAIT:
4493	{
4494	m_cost_unc_read_frz++;
4495
4496	// external cache invalidate request
4497	if ( r_tgt_dcache_req )
4498	{
4499	r_dcache_fsm = DCACHE_CC_CHECK;
4500	r_dcache_fsm_save = r_dcache_fsm;
4501	break;
4502	}
4503
4504	if ( !r_dcache_unc_req )
4505	{
4506	if ( r_vci_rsp_data_error )
4507	{
4508	r_dcache_error_type = MMU_READ_DATA_ILLEGAL_ACCESS;
4509	r_dcache_bad_vaddr = dreq.addr;
4510	r_dcache_fsm = DCACHE_ERROR;
4511
4512	if (r_dcache_inval_tlb_rsp) r_dcache_inval_tlb_rsp = false;
4513	break;
4514	}
4515
4516	if ( r_dcache_inval_tlb_rsp ) // Miss read response and tlb invalidation
4517	{
4518	r_dcache_inval_tlb_rsp = false;
4519	}
4520
4521	drsp.valid = true;
4522	drsp.rdata = r_dcache_miss_buf[0];
4523	r_dcache_fsm = DCACHE_IDLE;
4524	}
4525	break;
4526	}
4527	///////////////////////
4528	case DCACHE_WRITE_UPDT:
4529	{
4530	m_cost_write_frz++;
4531	m_cpt_dcache_data_write++;
4532	size_t way = 0;
4533	size_t set = 0;
4534	bool write_hit = false;
4535	data_t mask = vci_param::be2mask(r_dcache_be_save.read());
4536	data_t wdata = (mask & r_dcache_wdata_save) \| (~mask & r_dcache_rdata_save);
4537	write_hit = r_dcache.write(r_dcache_paddr_save, wdata, &way, &set);
4538	assert(write_hit && "Write on miss ignores data");
4539
4540	if (r_dcache_in_itlb[waym_dcache_sets+set] \|\| r_dcache_in_dtlb[m_dcache_setsway+set])
4541	{
4542	// ins tlb invalidate verification
4543	r_dcache_itlb_inval_req = r_dcache_in_itlb[m_dcache_sets*way+set];
4544	r_dcache_itlb_inval_line = (r_dcache.get_tag(way, set) * m_dcache_sets) + set;
4545	r_dcache_in_itlb[way*m_dcache_sets+set] = false;
4546
4547	// data tlb invalidate verification
4548	r_dcache_dtlb_inval_req = r_dcache_in_dtlb[m_dcache_sets*way+set];
4549	r_dcache_dtlb_inval_line = (r_dcache.get_tag(way, set) * m_dcache_sets) + set;
4550	r_dcache_in_dtlb[way*m_dcache_sets+set] = false;
4551
4552	r_dcache_fsm = DCACHE_TLB_CC_INVAL;
4553	r_dcache_fsm_save = r_dcache_fsm;
4554	break;
4555	}
4556
4557	if ( !r_dcache_dirty_save && (r_mmu_mode.read() & DATA_TLB_MASK) )
4558	{
4559	m_cpt_data_tlb_update_dirty++;
4560	m_cost_data_tlb_update_dirty_frz++;
4561	if ( dcache_tlb.getpagesize(r_dcache_tlb_way_save, r_dcache_tlb_set_save) ) // 2M page size, one level page table
4562	{
4563	r_dcache_pte_update = dcache_tlb.getpte(r_dcache_tlb_way_save, r_dcache_tlb_set_save) \| PTE_D_MASK;
4564	r_dcache_tlb_paddr = (paddr_t)r_mmu_ptpr << (INDEX1_NBITS+2) \| (paddr_t)((dreq.addr>>PAGE_M_NBITS)<<2);
4565	r_dcache_tlb_ll_dirty_req = true;
4566	r_dcache_fsm = DCACHE_LL_DIRTY_WAIT;
4567	}
4568	else
4569	{
4570	if (r_dcache_hit_p_save)
4571	{
4572	r_dcache_pte_update = dcache_tlb.getpte(r_dcache_tlb_way_save, r_dcache_tlb_set_save) \| PTE_D_MASK;
4573	r_dcache_tlb_paddr = (paddr_t)r_dcache_ptba_save\|(paddr_t)(((dreq.addr&PTD_ID2_MASK)>>PAGE_K_NBITS) << 3);
4574	r_dcache_tlb_ll_dirty_req = true;
4575	r_dcache_fsm = DCACHE_LL_DIRTY_WAIT;
4576	}
4577	else
4578	{
4579	r_dcache_pte_update = dcache_tlb.getpte(r_dcache_tlb_way_save, r_dcache_tlb_set_save) \| PTE_D_MASK;
4580	data_t ptba;
4581	if (r_dcache.read((paddr_t)r_mmu_ptpr << (INDEX1_NBITS+2) \| (paddr_t)((dreq.addr>>PAGE_M_NBITS)<<2), &ptba))
4582	{
4583	r_dcache_tlb_paddr = (paddr_t)(ptba & ((1<<(m_paddr_nbits - PAGE_K_NBITS))-1)) << PAGE_K_NBITS \| (paddr_t)(((dreq.addr & PTD_ID2_MASK) >> PAGE_K_NBITS) << 3);
4584	r_dcache_tlb_ll_dirty_req = true;
4585	r_dcache_fsm = DCACHE_LL_DIRTY_WAIT;
4586
4587	}
4588	else
4589	{
4590	r_dcache_tlb_paddr = (paddr_t)r_mmu_ptpr << (INDEX1_NBITS+2) \| (paddr_t)((dreq.addr>>PAGE_M_NBITS)<<2);
4591	r_dcache_tlb_ptba_read = true;
4592	r_dcache_fsm = DCACHE_DTLB1_READ_CACHE;
4593	}
4594	}
4595	}
4596	}
4597	else
4598	{
4599	r_dcache_fsm = DCACHE_WRITE_REQ;
4600	drsp.valid = true;
4601	drsp.rdata = 0;
4602	}
4603	break;
4604	}
4605	////////////////////////
4606	case DCACHE_WRITE_DIRTY:
4607	{
4608	m_cost_data_tlb_update_dirty_frz++;
4609
4610	// external cache invalidate request
4611	if ( r_tgt_dcache_req )
4612	{
4613	r_dcache_fsm = DCACHE_CC_CHECK;
4614	r_dcache_fsm_save = r_dcache_fsm;
4615	break;
4616	}
4617
4618	if ( r_dcache_inval_tlb_rsp ) // Miss read response and tlb invalidation
4619	{
4620	r_dcache_fsm = DCACHE_IDLE;
4621	if ( r_dcache_sc_updt_dirty ) r_dcache_sc_updt_dirty = false;
4622	r_dcache_inval_tlb_rsp = false;
4623	break;
4624	}
4625
4626	if ( r_dcache_inval_rsp ) // TLB miss response and cache invalidation
4627	{
4628	r_dcache_fsm = DCACHE_IDLE;
4629	if ( r_dcache_sc_updt_dirty ) r_dcache_sc_updt_dirty = false;
4630	r_dcache_inval_rsp = false;
4631	break;
4632	}
4633
4634	dcache_tlb.setdirty(r_dcache_tlb_way_save, r_dcache_tlb_set_save);
4635	if ( r_dcache_sc_updt_dirty )
4636	{
4637	r_dcache_sc_updt_dirty = false;
4638	r_dcache_unc_req = true;
4639	r_dcache_fsm = DCACHE_UNC_WAIT;
4640	m_cpt_unc_read++;
4641	}
4642	else
4643	{
4644	r_dcache_fsm = DCACHE_WRITE_REQ;
4645	drsp.valid = true;
4646	drsp.rdata = 0;
4647	}
4648	break;
4649	}
4650	/////////////////
4651	case DCACHE_ERROR:
4652	{
4653	r_vci_rsp_data_error = false;
4654	drsp.valid = true;
4655	drsp.error = true;
4656	drsp.rdata = 0;
4657	r_dcache_fsm = DCACHE_IDLE;
4658	break;
4659	}
4660	//////////////////////
4661	case DCACHE_ITLB_READ:
4662	{
4663	if ( dreq.valid ) m_cost_ins_tlb_occup_cache_frz++;
4664
4665	// external cache invalidate request
4666	if ( r_tgt_dcache_req )
4667	{
4668	r_dcache_fsm = DCACHE_CC_CHECK;
4669	r_dcache_fsm_save = r_dcache_fsm;
4670	break;
4671	}
4672
4673	if ( !r_dcache_itlb_read_req ) // vci response ok
4674	{
4675	if ( r_vci_rsp_data_error )
4676	{
4677	r_dcache_rsp_itlb_error = true;
4678	r_itlb_read_dcache_req = false;
4679	r_vci_rsp_data_error = false;
4680	r_dcache_fsm = DCACHE_IDLE;
4681
4682	if (r_dcache_inval_rsp) r_dcache_inval_rsp = false;
4683	break;
4684	}
4685
4686	if ( r_dcache_inval_rsp ) // TLB miss response and cache invalidation
4687	{
4688	if ( r_dcache_cleanup_req ) break;
4689	r_dcache_cleanup_req = true;
4690	r_dcache_cleanup_line = r_icache_paddr_save.read() >> (uint32_log2(m_dcache_words) + 2);
4691	m_cpt_cc_cleanup_data++;
4692	r_dcache_fsm = DCACHE_IDLE;
4693	r_dcache_inval_rsp = false;
4694	break;
4695	}
4696
4697	r_dcache_fsm = DCACHE_ITLB_UPDT;
4698	}
4699	break;
4700	}
4701	//////////////////////
4702	case DCACHE_ITLB_UPDT:
4703	{
4704	if ( dreq.valid ) m_cost_ins_tlb_occup_cache_frz++;
4705
4706	// external cache invalidate request
4707	if ( r_tgt_dcache_req )
4708	{
4709	r_dcache_fsm = DCACHE_CC_CHECK;
4710	r_dcache_fsm_save = r_dcache_fsm;
4711	break;
4712	}
4713
4714	if ( !r_dcache_cleanup_req )
4715	{
4716	data_t rsp_itlb_miss = 0;
4717	data_t rsp_itlb_ppn = 0;
4718
4719	paddr_t victim_index = 0;
4720	size_t way = 0;
4721	size_t set = 0;
4722
4723	if ( r_dcache_inval_rsp ) // TLB miss response and cache invalidation
4724	{
4725	r_dcache_cleanup_req = true;
4726	r_dcache_cleanup_line = r_icache_paddr_save.read() >> (uint32_log2(m_dcache_words) + 2);
4727	m_cpt_cc_cleanup_data++;
4728	r_dcache_fsm = DCACHE_IDLE;
4729	r_dcache_inval_rsp = false;
4730	break;
4731	}
4732
4733	bool cleanup = r_dcache.find(r_icache_paddr_save, r_dcache_in_itlb, r_dcache_in_dtlb, &way, &set, &victim_index);
4734
4735	if ( cleanup )
4736	{
4737	// ins tlb invalidate verification
4738	r_dcache_itlb_inval_req = r_dcache_in_itlb[m_dcache_sets*way+set];
4739	r_dcache_itlb_inval_line = victim_index;
4740
4741	// data tlb invalidate verification
4742	r_dcache_dtlb_inval_req = r_dcache_in_dtlb[m_dcache_sets*way+set];
4743	r_dcache_dtlb_inval_line = victim_index;
4744
4745	r_dcache_cleanup_req = true;
4746	r_dcache_cleanup_line = victim_index;
4747	m_cpt_cc_cleanup_data++;
4748	if ( r_dcache_in_itlb[m_dcache_setsway+set] \|\| r_dcache_in_dtlb[m_dcache_setsway+set] )
4749	{
4750	r_dcache_fsm = DCACHE_TLB_CC_INVAL;
4751	r_dcache_fsm_save = r_dcache_fsm;
4752	r_dcache_in_itlb[way*m_dcache_sets+set] = false;
4753	r_dcache_in_dtlb[way*m_dcache_sets+set] = false;
4754	break;
4755	}
4756	}
4757
4758	r_dcache.update(r_icache_paddr_save, way, set, r_dcache_miss_buf);
4759
4760	bool set_hit = r_dcache.setinbit(r_icache_paddr_save, r_dcache_in_itlb, true);
4761	assert(set_hit && "ITLB_UPDT set hit error");
4762	bool itlb_hit_dcache = r_dcache.read(r_icache_paddr_save, &rsp_itlb_miss);
4763	m_cpt_ins_tlb_occup_cache++;
4764
4765	if ( r_itlb_k_read_dcache && itlb_hit_dcache )
4766	{
4767	r_itlb_k_read_dcache = false;
4768	bool itlb_hit_ppn = r_dcache.read(r_icache_paddr_save.read()+4, &rsp_itlb_ppn);
4769	assert(itlb_hit_ppn && "Address of pte[64-32] and pte[31-0] should be successive");
4770	}
4771
4772	r_dcache_rsp_itlb_miss = rsp_itlb_miss;
4773	r_dcache_rsp_itlb_ppn = rsp_itlb_ppn;
4774	r_dcache_rsp_itlb_error = false;
4775	r_itlb_read_dcache_req = false;
4776	r_dcache_fsm = DCACHE_IDLE;
4777	}
4778	break;
4779	}
4780	//////////////////////////
4781	case DCACHE_ITLB_LL_WAIT:
4782	{
4783	if ( dreq.valid ) m_cost_ins_tlb_occup_cache_frz++;
4784	// external cache invalidate request
4785	if ( r_tgt_dcache_req )
4786	{
4787	r_dcache_fsm = DCACHE_CC_CHECK;
4788	r_dcache_fsm_save = r_dcache_fsm;
4789	break;
4790	}
4791
4792	if (!r_dcache_itlb_ll_acc_req)
4793	{
4794	if ( r_vci_rsp_data_error ) // VCI response ko
4795	{
4796	r_dcache_rsp_itlb_error = true;
4797	r_vci_rsp_data_error = false;
4798	r_itlb_acc_dcache_req = false;
4799	r_dcache_fsm = DCACHE_IDLE;
4800	if (r_dcache_inval_rsp) r_dcache_inval_rsp = false;
4801	}
4802	else
4803	{
4804	if ( !(r_dcache_miss_buf[0] >> PTE_V_SHIFT) ) // unmapped
4805	{
4806	r_dcache_rsp_itlb_error = true;
4807	r_itlb_acc_dcache_req = false;
4808	r_dcache_fsm = DCACHE_IDLE;
4809	if (r_dcache_inval_rsp) r_dcache_inval_rsp = false;
4810	}
4811	else if ( r_dcache_inval_rsp )
4812	{
4813	r_dcache_inval_rsp = false;
4814	r_dcache_fsm = DCACHE_IDLE;
4815	}
4816	else
4817	{
4818	r_dcache_itlb_sc_acc_req = true;
4819	r_icache_pte_update = r_dcache_miss_buf[0] \| r_icache_pte_update.read();
4820	r_dcache_fsm = DCACHE_ITLB_SC_WAIT;
4821	}
4822	}
4823	}
4824	break;
4825	}
4826	//////////////////////////
4827	case DCACHE_ITLB_SC_WAIT:
4828	{
4829	if ( dreq.valid ) m_cost_ins_tlb_occup_cache_frz++;
4830	// external cache invalidate request
4831	if ( r_tgt_dcache_req )
4832	{
4833	r_dcache_fsm = DCACHE_CC_CHECK;
4834	r_dcache_fsm_save = r_dcache_fsm;
4835	break;
4836	}
4837
4838	if ( !r_dcache_itlb_sc_acc_req )
4839	{
4840	if ( r_vci_rsp_data_error ) // VCI response ko
4841	{
4842	r_dcache_rsp_itlb_error = true;
4843	r_vci_rsp_data_error = false;
4844	r_itlb_acc_dcache_req = false;
4845	r_dcache_fsm = DCACHE_IDLE;
4846	if (r_dcache_inval_rsp) r_dcache_inval_rsp = false;
4847	}
4848	else
4849	{
4850	if ( r_dcache_inval_rsp )
4851	{
4852	r_itlb_acc_dcache_req = false;
4853	r_itlb_acc_redo_req = true;
4854	r_dcache_inval_rsp = false;
4855	r_dcache_fsm = DCACHE_IDLE;
4856	if (r_dcache_tlb_sc_fail) r_dcache_tlb_sc_fail = false;
4857	}
4858	else if ( r_dcache_tlb_sc_fail )
4859	{
4860	r_dcache_tlb_sc_fail = false;
4861	r_dcache_itlb_ll_acc_req = true;
4862	r_dcache_fsm = DCACHE_ITLB_LL_WAIT;
4863	}
4864	else
4865	{
4866	bool write_hit = r_dcache.write(r_icache_paddr_save, r_icache_pte_update);
4867	assert(write_hit && "Write on miss ignores data for data MMU update ins access bit");
4868	r_itlb_acc_dcache_req = false;
4869	r_dcache_fsm = DCACHE_IDLE;
4870	}
4871	}
4872	}
4873	break;
4874	}
4875	/////////////////////
4876	case DCACHE_CC_CHECK: // read directory in case of invalidate or update request
4877	{
4878	m_cpt_dcache_dir_read += m_dcache_ways;
4879	m_cpt_dcache_data_read += m_dcache_ways;
4880
4881	/* activity counter */
4882	if ( (( r_dcache_fsm_save == DCACHE_BIS ) \|\|( r_dcache_fsm_save == DCACHE_MISS_WAIT ) \|\| ( r_dcache_fsm_save == DCACHE_MISS_UPDT ) ) && ( dreq.valid ) )
4883	{
4884	m_cost_data_miss_frz++;
4885	}
4886	if( (( r_dcache_fsm_save == DCACHE_DTLB1_READ_CACHE ) \|\| ( r_dcache_fsm_save == DCACHE_DTLB2_READ_CACHE ) \|\|
4887	( r_dcache_fsm_save == DCACHE_TLB1_READ ) \|\| ( r_dcache_fsm_save == DCACHE_TLB2_READ ) \|\|
4888	( r_dcache_fsm_save == DCACHE_TLB1_LL_WAIT ) \|\| ( r_dcache_fsm_save == DCACHE_TLB2_LL_WAIT ) \|\|
4889	( r_dcache_fsm_save == DCACHE_TLB1_SC_WAIT ) \|\| ( r_dcache_fsm_save == DCACHE_TLB2_SC_WAIT ) \|\|
4890	( r_dcache_fsm_save == DCACHE_TLB1_READ_UPDT ) \|\| ( r_dcache_fsm_save == DCACHE_TLB2_READ_UPDT ) \|\|
4891	( r_dcache_fsm_save == DCACHE_TLB1_UPDT ) \|\| ( r_dcache_fsm_save == DCACHE_TLB2_UPDT )) && (dreq.valid) )
4892	{
4893	m_cost_data_tlb_miss_frz++;
4894	}
4895
4896	// DCACHE_TLB1_LL_WAIT DCACHE_TLB1_SC_WAIT DCACHE_LL_DIRTY_WAIT DCACHE_WRITE_DIRTY DCACHE_ITLB_LL_WAIT DCACHE_ITLB_SC_WAIT
4897	// DCACHE_TLB2_LL_WAIT DCACHE_TLB2_SC_WAIT DCACHE_SC_DIRTY_WAIT
4898	if((( /( r_dcache_fsm_save == DCACHE_UNC_WAIT ) \|\|/
4899	( r_dcache_fsm_save == DCACHE_MISS_WAIT ) \|\| ( r_dcache_fsm_save == DCACHE_MISS_UPDT ) ) &&
4900	( (r_dcache_paddr_save.read() & ~((m_dcache_words<<2)-1)) == (r_tgt_addr.read() & ~((m_dcache_words<<2)-1))))
4901	\|\| (( ( r_dcache_fsm_save == DCACHE_TLB1_READ ) \|\| ( r_dcache_fsm_save == DCACHE_TLB2_READ ) \|\|
4902	( r_dcache_fsm_save == DCACHE_TLB1_READ_UPDT ) \|\| ( r_dcache_fsm_save == DCACHE_TLB2_READ_UPDT ) /*\|\|
4903	( r_dcache_fsm_save == DCACHE_TLB1_UPDT ) \|\| ( r_dcache_fsm_save == DCACHE_TLB2_UPDT ) \|\|
4904	( r_dcache_fsm_save == DCACHE_TLB1_LL_WAIT ) \|\| ( r_dcache_fsm_save == DCACHE_TLB2_LL_WAIT ) \|\|
4905	( r_dcache_fsm_save == DCACHE_TLB1_SC_WAIT ) \|\| ( r_dcache_fsm_save == DCACHE_TLB2_SC_WAIT ) \|\|
4906	( r_dcache_fsm_save == DCACHE_LL_DIRTY_WAIT ) \|\| ( r_dcache_fsm_save == DCACHE_SC_DIRTY_WAIT ) \|\|
4907	( r_dcache_fsm_save == DCACHE_WRITE_DIRTY )*/ ) &&
4908	( (r_dcache_tlb_paddr.read() & ~((m_dcache_words<<2)-1)) == (r_tgt_addr.read() & ~((m_dcache_words<<2)-1))) )
4909	\|\| (( ( r_dcache_fsm_save == DCACHE_ITLB_READ ) /*\|\| ( r_dcache_fsm_save == DCACHE_ITLB_UPDT ) \|\|
4910	( r_dcache_fsm_save == DCACHE_ITLB_LL_WAIT ) \|\| ( r_dcache_fsm_save == DCACHE_ITLB_SC_WAIT )*/ ) &&
4911	( (r_icache_paddr_save.read() & ~((m_dcache_words<<2)-1)) == (r_tgt_addr.read() & ~((m_dcache_words<<2)-1))) ) )
4912	{
4913	r_dcache_inval_rsp = true;
4914	r_tgt_dcache_req = false;
4915	if ( r_tgt_update )
4916	{ // Also send a cleanup and answer
4917	r_tgt_dcache_rsp = true;
4918	}
4919	else
4920	{ // Also send a cleanup but don't answer
4921	r_tgt_dcache_rsp = false;
4922	}
4923	r_dcache_fsm = r_dcache_fsm_save;
4924	}
4925	else
4926	{
4927	data_t dcache_rdata = 0;
4928	size_t way = 0;
4929	size_t set = 0;
4930
4931	bool dcache_hit = r_dcache.read(r_tgt_addr.read(), &dcache_rdata, &way, &set);
4932
4933	if ( dcache_hit )
4934	{
4935	if (((( r_dcache_fsm_save == DCACHE_TLB1_UPDT ) \|\| ( r_dcache_fsm_save == DCACHE_TLB2_UPDT ) \|\|
4936	( r_dcache_fsm_save == DCACHE_TLB1_LL_WAIT ) \|\| ( r_dcache_fsm_save == DCACHE_TLB2_LL_WAIT ) \|\|
4937	( r_dcache_fsm_save == DCACHE_TLB1_SC_WAIT ) \|\| ( r_dcache_fsm_save == DCACHE_TLB2_SC_WAIT ) \|\|
4938	( r_dcache_fsm_save == DCACHE_LL_DIRTY_WAIT ) \|\| ( r_dcache_fsm_save == DCACHE_SC_DIRTY_WAIT ) \|\|
4939	( r_dcache_fsm_save == DCACHE_WRITE_DIRTY )) &&
4940	((r_dcache_tlb_paddr.read() & ~((m_dcache_words<<2)-1)) == (r_tgt_addr.read() & ~((m_dcache_words<<2)-1)) )) \|\|
4941	((( r_dcache_fsm_save == DCACHE_ITLB_UPDT ) \|\|
4942	( r_dcache_fsm_save == DCACHE_ITLB_LL_WAIT ) \|\| ( r_dcache_fsm_save == DCACHE_ITLB_SC_WAIT ) ) &&
4943	((r_icache_paddr_save.read() & ~((m_dcache_words<<2)-1)) == (r_tgt_addr.read() & ~((m_dcache_words<<2)-1)))))
4944	{
4945	r_dcache_inval_rsp = true;
4946	}
4947
4948	if ( r_dcache_in_dtlb[m_dcache_setsway+set] \|\| r_dcache_in_itlb[m_dcache_setsway+set] )
4949	{
4950	// ins tlb invalidate verification
4951	r_dcache_itlb_inval_req = r_dcache_in_itlb[m_dcache_sets*way+set];
4952	r_dcache_itlb_inval_line = r_tgt_addr.read() >> (uint32_log2(m_dcache_words)+2);
4953	r_dcache_in_itlb[way*m_dcache_sets+set] = false;
4954
4955	// data tlb invalidate verification
4956	r_dcache_dtlb_inval_req = r_dcache_in_dtlb[m_dcache_sets*way+set];
4957	r_dcache_dtlb_inval_line = r_tgt_addr.read() >> (uint32_log2(m_dcache_words)+2);
4958	r_dcache_in_dtlb[way*m_dcache_sets+set] = false;
4959
4960	r_dcache_cc_check = true;
4961	r_dcache_fsm = DCACHE_TLB_CC_INVAL;
4962	break;
4963	}
4964
4965	if ( r_tgt_update ) // update
4966	{
4967	r_dcache_fsm = DCACHE_CC_UPDT;
4968	}
4969	else // invalidate
4970	{
4971	r_dcache_fsm = DCACHE_CC_INVAL;
4972	}
4973	}
4974	else // nothing
4975	{
4976	r_dcache_fsm = DCACHE_CC_NOP;
4977	}
4978	}
4979	break;
4980	}
4981	///////////////////
4982	case DCACHE_CC_UPDT: // update directory and data cache
4983	{
4984	/* activity counter */
4985	if ( (( r_dcache_fsm_save == DCACHE_BIS ) \|\|( r_dcache_fsm_save == DCACHE_MISS_WAIT ) \|\| ( r_dcache_fsm_save == DCACHE_MISS_UPDT ) ) && ( dreq.valid ) )
4986	{
4987	m_cost_data_miss_frz++;
4988	}
4989	if( (( r_dcache_fsm_save == DCACHE_DTLB1_READ_CACHE ) \|\| ( r_dcache_fsm_save == DCACHE_DTLB2_READ_CACHE ) \|\|
4990	( r_dcache_fsm_save == DCACHE_TLB1_READ ) \|\| ( r_dcache_fsm_save == DCACHE_TLB2_READ ) \|\|
4991	( r_dcache_fsm_save == DCACHE_TLB1_LL_WAIT ) \|\| ( r_dcache_fsm_save == DCACHE_TLB2_LL_WAIT ) \|\|
4992	( r_dcache_fsm_save == DCACHE_TLB1_SC_WAIT ) \|\| ( r_dcache_fsm_save == DCACHE_TLB2_SC_WAIT ) \|\|
4993	( r_dcache_fsm_save == DCACHE_TLB1_READ_UPDT ) \|\| ( r_dcache_fsm_save == DCACHE_TLB2_READ_UPDT ) \|\|
4994	( r_dcache_fsm_save == DCACHE_TLB1_UPDT ) \|\| ( r_dcache_fsm_save == DCACHE_TLB2_UPDT )) && (dreq.valid) )
4995	{
4996	m_cost_data_tlb_miss_frz++;
4997	}
4998
4999	m_cpt_dcache_dir_write++;
5000	m_cpt_dcache_data_write++;
5001	data_t* buf = r_tgt_buf;
5002	for( size_t i = 0; i < m_dcache_words; i++ )
5003	{
5004	if( r_tgt_val[i] ) r_dcache.write( r_tgt_addr.read() + i*4, buf[i] );
5005	}
5006
5007	r_tgt_dcache_req = false;
5008	r_tgt_dcache_rsp = true;
5009	r_dcache_fsm = r_dcache_fsm_save;
5010	break;
5011	}
5012	/////////////////////
5013	case DCACHE_CC_INVAL: // invalidate a cache line
5014	{
5015	/* activity counter */
5016	if ( (( r_dcache_fsm_save == DCACHE_BIS ) \|\|( r_dcache_fsm_save == DCACHE_MISS_WAIT ) \|\| ( r_dcache_fsm_save == DCACHE_MISS_UPDT ) ) && ( dreq.valid ) )
5017	{
5018	m_cost_data_miss_frz++;
5019	}
5020	if( (( r_dcache_fsm_save == DCACHE_DTLB1_READ_CACHE ) \|\| ( r_dcache_fsm_save == DCACHE_DTLB2_READ_CACHE ) \|\|
5021	( r_dcache_fsm_save == DCACHE_TLB1_READ ) \|\| ( r_dcache_fsm_save == DCACHE_TLB2_READ ) \|\|
5022	( r_dcache_fsm_save == DCACHE_TLB1_LL_WAIT ) \|\| ( r_dcache_fsm_save == DCACHE_TLB2_LL_WAIT ) \|\|
5023	( r_dcache_fsm_save == DCACHE_TLB1_SC_WAIT ) \|\| ( r_dcache_fsm_save == DCACHE_TLB2_SC_WAIT ) \|\|
5024	( r_dcache_fsm_save == DCACHE_TLB1_READ_UPDT ) \|\| ( r_dcache_fsm_save == DCACHE_TLB2_READ_UPDT ) \|\|
5025	( r_dcache_fsm_save == DCACHE_TLB1_UPDT ) \|\| ( r_dcache_fsm_save == DCACHE_TLB2_UPDT )) && (dreq.valid) )
5026	{
5027	m_cost_data_tlb_miss_frz++;
5028	}
5029
5030	r_tgt_dcache_rsp = r_dcache.inval(r_tgt_addr.read());
5031	r_tgt_dcache_req = false;
5032	r_dcache_fsm = r_dcache_fsm_save;
5033	break;
5034	}
5035	///////////////////
5036	case DCACHE_CC_NOP: // no external hit
5037	{
5038	/* activity counter */
5039	if ( (( r_dcache_fsm_save == DCACHE_BIS ) \|\|( r_dcache_fsm_save == DCACHE_MISS_WAIT ) \|\| ( r_dcache_fsm_save == DCACHE_MISS_UPDT ) ) && ( dreq.valid ) )
5040	{
5041	m_cost_data_miss_frz++;
5042	}
5043	if( (( r_dcache_fsm_save == DCACHE_DTLB1_READ_CACHE ) \|\| ( r_dcache_fsm_save == DCACHE_DTLB2_READ_CACHE ) \|\|
5044	( r_dcache_fsm_save == DCACHE_TLB1_READ ) \|\| ( r_dcache_fsm_save == DCACHE_TLB2_READ ) \|\|
5045	( r_dcache_fsm_save == DCACHE_TLB1_LL_WAIT ) \|\| ( r_dcache_fsm_save == DCACHE_TLB2_LL_WAIT ) \|\|
5046	( r_dcache_fsm_save == DCACHE_TLB1_SC_WAIT ) \|\| ( r_dcache_fsm_save == DCACHE_TLB2_SC_WAIT ) \|\|
5047	( r_dcache_fsm_save == DCACHE_TLB1_READ_UPDT ) \|\| ( r_dcache_fsm_save == DCACHE_TLB2_READ_UPDT ) \|\|
5048	( r_dcache_fsm_save == DCACHE_TLB1_UPDT ) \|\| ( r_dcache_fsm_save == DCACHE_TLB2_UPDT )) && (dreq.valid) )
5049	{
5050	m_cost_data_tlb_miss_frz++;
5051	}
5052
5053	r_tgt_dcache_req = false;
5054	if ( r_tgt_update )
5055	{
5056	r_tgt_dcache_rsp = true;
5057	}
5058	else
5059	{
5060	r_tgt_dcache_rsp = false;
5061	}
5062
5063	r_dcache_fsm = r_dcache_fsm_save;
5064	break;
5065	}
5066	/////////////////////////
5067	case DCACHE_TLB_CC_INVAL:
5068	{
5069	/* activity counter */
5070	if ( (( r_dcache_fsm_save == DCACHE_BIS ) \|\|( r_dcache_fsm_save == DCACHE_MISS_WAIT ) \|\| ( r_dcache_fsm_save == DCACHE_MISS_UPDT ) ) && ( dreq.valid ) )
5071	{
5072	m_cost_data_miss_frz++;
5073	}
5074	if( (( r_dcache_fsm_save == DCACHE_DTLB1_READ_CACHE ) \|\| ( r_dcache_fsm_save == DCACHE_DTLB2_READ_CACHE ) \|\|
5075	( r_dcache_fsm_save == DCACHE_TLB1_READ ) \|\| ( r_dcache_fsm_save == DCACHE_TLB2_READ ) \|\|
5076	( r_dcache_fsm_save == DCACHE_TLB1_LL_WAIT ) \|\| ( r_dcache_fsm_save == DCACHE_TLB2_LL_WAIT ) \|\|
5077	( r_dcache_fsm_save == DCACHE_TLB1_SC_WAIT ) \|\| ( r_dcache_fsm_save == DCACHE_TLB2_SC_WAIT ) \|\|
5078	( r_dcache_fsm_save == DCACHE_TLB1_READ_UPDT ) \|\| ( r_dcache_fsm_save == DCACHE_TLB2_READ_UPDT ) \|\|
5079	( r_dcache_fsm_save == DCACHE_TLB1_UPDT ) \|\| ( r_dcache_fsm_save == DCACHE_TLB2_UPDT )) && (dreq.valid) )
5080	{
5081	m_cost_data_tlb_miss_frz++;
5082	}
5083
5084	if ( r_dcache_itlb_inval_req \|\| r_dcache_dtlb_inval_req ) break;
5085
5086	if( (( r_dcache_fsm_save == DCACHE_TLB1_READ ) \|\| ( r_dcache_fsm_save == DCACHE_TLB2_READ ) \|\|
5087	( r_dcache_fsm_save == DCACHE_TLB1_READ_UPDT ) \|\| ( r_dcache_fsm_save == DCACHE_TLB2_READ_UPDT ) \|\|
5088	( r_dcache_fsm_save == DCACHE_TLB1_LL_WAIT ) \|\| ( r_dcache_fsm_save == DCACHE_TLB2_LL_WAIT ) \|\|
5089	( r_dcache_fsm_save == DCACHE_TLB1_SC_WAIT ) \|\| ( r_dcache_fsm_save == DCACHE_TLB2_SC_WAIT ) \|\|
5090	( r_dcache_fsm_save == DCACHE_TLB1_UPDT ) \|\| ( r_dcache_fsm_save == DCACHE_TLB2_UPDT ) \|\|
5091	( r_dcache_fsm_save == DCACHE_DTLB1_READ_CACHE ) \|\| ( r_dcache_fsm_save == DCACHE_DTLB2_READ_CACHE ) \|\|
5092	( r_dcache_fsm_save == DCACHE_LL_DIRTY_WAIT ) \|\| ( r_dcache_fsm_save == DCACHE_SC_DIRTY_WAIT ) \|\|
5093	( r_dcache_fsm_save == DCACHE_WRITE_DIRTY )) &&
5094	(((r_dcache_tlb_paddr.read() & ~((m_dcache_words<<2)-1)) >> (uint32_log2(m_dcache_words) + 2)) == r_dcache_dtlb_inval_line.read()) )
5095	{
5096	r_dcache_inval_tlb_rsp = true;
5097	}
5098
5099	if (((r_dcache_fsm_save == DCACHE_BIS)\|\|(r_dcache_fsm_save == DCACHE_MISS_WAIT) \|\|
5100	(r_dcache_fsm_save == DCACHE_MISS_UPDT)) &&
5101	(r_dcache_tlb_nline.read() == r_dcache_dtlb_inval_line.read()))
5102	{
5103	r_dcache_inval_tlb_rsp = true;
5104	}
5105
5106	if ( !r_dcache_cc_check )
5107	{
5108	r_dcache_fsm = r_dcache_fsm_save;
5109	}
5110	else
5111	{
5112	r_dcache_fsm = DCACHE_CC_CHECK;
5113	r_dcache_cc_check = false;
5114	}
5115	r_dtlb_translation_valid = false;
5116	r_dcache_ptba_ok = false;
5117	break;
5118	}
5119	/////////////////////////
5120	case DCACHE_ITLB_CLEANUP:
5121	{
5122	if ( dreq.valid ) m_cost_data_miss_frz++;
5123
5124	r_dcache.setinbit(((paddr_t)r_dcache_itlb_cleanup_line.read()<<(uint32_log2(m_dcache_words)+2)), r_dcache_in_itlb, false);
5125	r_dcache_itlb_cleanup_req = false;
5126	r_dcache_fsm = DCACHE_IDLE;
5127	break;
5128	}
5129	} // end switch r_dcache_fsm
5130
5131	#ifdef SOCLIB_MODULE_DEBUG
5132	std::cout << name() << " Data Response: " << drsp << std::endl;
5133	#endif
5134	////////////////////////////////////////////////////////////////////////////////////
5135	// INVAL DTLB CHECK FSM
5136	////////////////////////////////////////////////////////////////////////////////////////
5137	switch(r_inval_dtlb_fsm) {
5138	/////////////////////
5139	case INVAL_DTLB_IDLE:
5140	{
5141	if ( r_dcache_dtlb_inval_req )
5142	{
5143	r_ccinval_dtlb_way = 0;
5144	r_ccinval_dtlb_set = 0;
5145	r_inval_dtlb_fsm = INVAL_DTLB_CHECK;
5146	m_cost_data_tlb_inval_frz++;
5147	}
5148	break;
5149	}
5150	////////////////////////////
5151	case INVAL_DTLB_CHECK:
5152	{
5153	m_cost_data_tlb_inval_frz++;
5154
5155	size_t way = r_ccinval_dtlb_way;
5156	size_t set = r_ccinval_dtlb_set;
5157	bool end = false;
5158	bool tlb_hit = dcache_tlb.cccheck(r_dcache_dtlb_inval_line.read(), way, set, &way, &set, &end);
5159
5160	if ( tlb_hit )
5161	{
5162	r_ccinval_dtlb_way = way;
5163	r_ccinval_dtlb_set = set;
5164	r_dtlb_cc_check_end = end;
5165	r_inval_dtlb_fsm = INVAL_DTLB_INVAL;
5166	m_cpt_data_tlb_inval++;
5167	}
5168	else
5169	{
5170	r_inval_dtlb_fsm = INVAL_DTLB_CLEAR;
5171	}
5172	break;
5173	}
5174	/////////////////////////
5175	case INVAL_DTLB_INVAL:
5176	{
5177	m_cost_data_tlb_inval_frz++;
5178
5179	dcache_tlb.ccinval(r_ccinval_dtlb_way, r_ccinval_dtlb_set);
5180
5181	if ( !r_dtlb_cc_check_end )
5182	{
5183	r_inval_dtlb_fsm = INVAL_DTLB_CHECK;
5184	}
5185	else
5186	{
5187	r_inval_dtlb_fsm = INVAL_DTLB_CLEAR;
5188	}
5189	break;
5190	}
5191	////////////////////
5192	case INVAL_DTLB_CLEAR:
5193	{
5194	r_dcache_dtlb_inval_req = false;
5195	r_dtlb_cc_check_end = false;
5196	r_ccinval_dtlb_way = 0;
5197	r_ccinval_dtlb_set = 0;
5198	r_inval_dtlb_fsm = INVAL_DTLB_IDLE;
5199	m_cpt_data_tlb_inval++;
5200	break;
5201	}
5202	} // end switch r_inval_itlb_fsm
5203
5204	/////////// execute one iss cycle /////////////////////////////////
5205	{
5206	uint32_t it = 0;
5207	for (size_t i=0; i<(size_t)iss_t::n_irq; i++) if(p_irq[i].read()) it \|= (1<<i);
5208	m_iss.executeNCycles(1, irsp, drsp, it);
5209	}
5210
5211	////////////// number of frozen cycles //////////////////////////
5212	if ( (ireq.valid && !irsp.valid) \|\| (dreq.valid && !drsp.valid) )
5213	{
5214	m_cpt_frz_cycles++;
5215	}
5216	if ( dreq.valid && !drsp.valid )
5217	{
5218	m_cpt_dcache_frz_cycles++;
5219	}
5220	#ifdef EVALUATION_CACHE
5221	for (size_t way = 0; way < m_dcache_ways; way++ )
5222	{
5223	for (size_t set = 0; set < m_dcache_sets; set++ )
5224	{
5225	if (r_dcache_in_itlb[waym_dcache_sets+set] \|\| r_dcache_in_dtlb[waym_dcache_sets+set])
5226	m_cpt_tlb_occup_dcache++;
5227	}
5228	}
5229	#endif
5230	////////////////////////////////////////////////////////////////////////////
5231	// VCI_CMD FSM
5232	//
5233	// This FSM handles requests from both the DCACHE controler
5234	// (request registers) and the ICACHE controler (request registers).
5235	// There is 10 VCI transaction types :
5236	// - INS_TLB_READ
5237	// - INS_TLB_WRITE
5238	// - INS_MISS
5239	// - INS_UNC_MISS
5240	// - DATA_TLB_READ
5241	// - DATA_TLB_WRITE
5242	// - DATA_TLB_DIRTY
5243	// - DATA_MISS
5244	// - DATA_UNC
5245	// - DATA_WRITE
5246	// The ICACHE requests have the highest priority.
5247	// There is at most one (CMD/RSP) VCI transaction, as both CMD_FSM and RSP_FSM
5248	// exit simultaneously the IDLE state.
5249	//////////////////////////////////////////////////////////////////////////////
5250
5251	switch (r_vci_cmd_fsm) {
5252
5253	case CMD_IDLE:
5254	if (r_vci_rsp_fsm != RSP_IDLE)
5255	break;
5256
5257	r_vci_cmd_cpt = 0;
5258
5259	if (r_icache_cleanup_req)
5260	{
5261	r_vci_cmd_fsm = CMD_INS_CLEANUP;
5262	m_cpt_icleanup_transaction++;
5263	}
5264	else if (r_dcache_cleanup_req)
5265	{
5266	r_vci_cmd_fsm = CMD_DATA_CLEANUP;
5267	m_cpt_dcleanup_transaction++;
5268	}
5269	else if (r_dcache_itlb_read_req)
5270	{
5271	r_vci_cmd_fsm = CMD_ITLB_READ;
5272	m_cpt_itlbmiss_transaction++;
5273	}
5274	else if (r_dcache_itlb_ll_acc_req)
5275	{
5276	r_vci_cmd_fsm = CMD_ITLB_ACC_LL;
5277	m_cpt_itlb_ll_transaction++;
5278	}
5279	else if (r_dcache_itlb_sc_acc_req)
5280	{
5281	r_vci_cmd_fsm = CMD_ITLB_ACC_SC;
5282	m_cpt_itlb_sc_transaction++;
5283	}
5284	else if (r_icache_miss_req)
5285	{
5286	r_vci_cmd_fsm = CMD_INS_MISS;
5287	m_cpt_imiss_transaction++;
5288	}
5289	else if (r_icache_unc_req)
5290	{
5291	r_vci_cmd_fsm = CMD_INS_UNC;
5292	m_cpt_icache_unc_transaction++;
5293	}
5294	else if (r_dcache_tlb_read_req)
5295	{
5296	r_vci_cmd_fsm = CMD_DTLB_READ;
5297	m_cpt_dtlbmiss_transaction++;
5298	}
5299	else if (r_dcache_tlb_ll_acc_req)
5300	{
5301	r_vci_cmd_fsm = CMD_DTLB_ACC_LL;
5302	m_cpt_dtlb_ll_transaction++;
5303	}
5304	else if (r_dcache_tlb_sc_acc_req)
5305	{
5306	r_vci_cmd_fsm = CMD_DTLB_ACC_SC;
5307	m_cpt_dtlb_sc_transaction++;
5308	}
5309	else if (r_dcache_tlb_ll_dirty_req)
5310	{
5311	r_vci_cmd_fsm = CMD_DTLB_DIRTY_LL;
5312	m_cpt_dtlb_ll_dirty_transaction++;
5313	}
5314	else if (r_dcache_tlb_sc_dirty_req)
5315	{
5316	r_vci_cmd_fsm = CMD_DTLB_DIRTY_SC;
5317	m_cpt_dtlb_sc_dirty_transaction++;
5318	}
5319	else if (r_dcache_write_req)
5320	{
5321	r_vci_cmd_fsm = CMD_DATA_WRITE;
5322	r_vci_cmd_cpt = r_wbuf.getMin();
5323	r_vci_cmd_min = r_wbuf.getMin();
5324	r_vci_cmd_max = r_wbuf.getMax();
5325	m_cpt_write_transaction++;
5326	m_length_write_transaction += (r_wbuf.getMax() - r_wbuf.getMin() + 1);
5327	}
5328	else if (r_dcache_miss_req)
5329	{
5330	r_vci_cmd_fsm = CMD_DATA_MISS;
5331	m_cpt_dmiss_transaction++;
5332	}
5333	else if (r_dcache_unc_req)
5334	{
5335	r_vci_cmd_fsm = CMD_DATA_UNC;
5336	m_cpt_unc_transaction++;
5337	}
5338	break;
5339
5340	case CMD_DATA_WRITE:
5341	if ( p_vci_ini_rw.cmdack.read() )
5342	{
5343	r_vci_cmd_cpt = r_vci_cmd_cpt + 1;
5344	if (r_vci_cmd_cpt == r_vci_cmd_max)
5345	{
5346	r_vci_cmd_fsm = CMD_IDLE;
5347	r_wbuf.reset();
5348	}
5349	}
5350	break;
5351
5352	case CMD_INS_CLEANUP:
5353	case CMD_DATA_CLEANUP:
5354	if ( p_vci_ini_c.cmdack.read() )
5355	{
5356	r_vci_cmd_fsm = CMD_IDLE;
5357	}
5358	break;
5359
5360	default:
5361	if ( p_vci_ini_rw.cmdack.read() )
5362	{
5363	r_vci_cmd_fsm = CMD_IDLE;
5364	}
5365	break;
5366
5367	} // end switch r_vci_cmd_fsm
5368
5369	//////////////////////////////////////////////////////////////////////////
5370	// VCI_RSP FSM
5371	//
5372	// This FSM is synchronized with the VCI_CMD FSM, as both FSMs exit the
5373	// IDLE state simultaneously.
5374	//////////////////////////////////////////////////////////////////////////
5375
5376	switch (r_vci_rsp_fsm) {
5377
5378	case RSP_IDLE:
5379	assert( !p_vci_ini_rw.rspval.read() && !p_vci_ini_c.rspval.read() && "Unexpected response" );
5380
5381	if (r_vci_cmd_fsm != CMD_IDLE)
5382	break;
5383
5384	r_vci_rsp_cpt = 0;
5385	if (r_icache_cleanup_req) // ICACHE cleanup response
5386	{
5387	r_vci_rsp_fsm = RSP_INS_CLEANUP;
5388	}
5389	else if (r_dcache_cleanup_req) // DCACHE cleanup response
5390	{
5391	r_vci_rsp_fsm = RSP_DATA_CLEANUP;
5392	}
5393	else if (r_dcache_itlb_read_req) // ITLB miss response
5394	{
5395	r_vci_rsp_fsm = RSP_ITLB_READ;
5396	}
5397	else if (r_dcache_itlb_ll_acc_req) // ITLB linked load response
5398	{
5399	r_vci_rsp_fsm = RSP_ITLB_ACC_LL;
5400	}
5401	else if (r_dcache_itlb_sc_acc_req) // ITLB store conditional response
5402	{
5403	r_vci_rsp_fsm = RSP_ITLB_ACC_SC;
5404	}
5405	else if (r_icache_miss_req) // ICACHE cached miss response
5406	{
5407	r_vci_rsp_fsm = RSP_INS_MISS;
5408	}
5409	else if (r_icache_unc_req) // ICACHE uncached miss response
5410	{
5411	r_vci_rsp_fsm = RSP_INS_UNC;
5412	}
5413	else if (r_dcache_tlb_read_req) // ITLB miss response
5414	{
5415	r_vci_rsp_fsm = RSP_DTLB_READ;
5416	}
5417	else if (r_dcache_tlb_ll_acc_req) // DTLB access bits linked load response
5418	{
5419	r_vci_rsp_fsm = RSP_DTLB_ACC_LL;
5420	}
5421	else if (r_dcache_tlb_sc_acc_req) // DTLB access bits store conditional response
5422	{
5423	r_vci_rsp_fsm = RSP_DTLB_ACC_SC;
5424	}
5425	else if (r_dcache_tlb_ll_dirty_req) // DTLB dirty bit linked load response
5426	{
5427	r_vci_rsp_fsm = RSP_DTLB_DIRTY_LL;
5428	}
5429	else if (r_dcache_tlb_sc_dirty_req) // DTLB dirty bit store conditional response
5430	{
5431	r_vci_rsp_fsm = RSP_DTLB_DIRTY_SC;
5432	}
5433	else if (r_dcache_write_req) // DCACHE write response
5434	{
5435	r_vci_rsp_fsm = RSP_DATA_WRITE;
5436	}
5437	else if (r_dcache_miss_req) // DCACHE read response
5438	{
5439	r_vci_rsp_fsm = RSP_DATA_MISS;
5440	}
5441	else if (r_dcache_unc_req) // DCACHE uncached read response
5442	{
5443	r_vci_rsp_fsm = RSP_DATA_UNC;
5444	}
5445	break;
5446
5447	case RSP_ITLB_READ:
5448	m_cost_itlbmiss_transaction++;
5449	if ( ! p_vci_ini_rw.rspval.read() )
5450	break;
5451
5452	assert(r_vci_rsp_cpt != m_dcache_words &&
5453	"illegal VCI response packet for data read miss");
5454
5455	r_vci_rsp_cpt = r_vci_rsp_cpt + 1;
5456	r_dcache_miss_buf[r_vci_rsp_cpt] = (data_t)p_vci_ini_rw.rdata.read();
5457	if ( p_vci_ini_rw.reop.read() )
5458	{
5459	assert(r_vci_rsp_cpt == m_dcache_words - 1 &&
5460	"illegal VCI response packet for data read miss");
5461	r_dcache_itlb_read_req = false;
5462	r_vci_rsp_fsm = RSP_IDLE;
5463	}
5464	if ( p_vci_ini_rw.rerror.read() != vci_param::ERR_NORMAL )
5465	{
5466	r_vci_rsp_data_error = true;
5467	}
5468	break;
5469
5470	case RSP_ITLB_ACC_LL:
5471	m_cost_itlb_ll_transaction++;
5472	if ( ! p_vci_ini_rw.rspval.read() )
5473	break;
5474
5475	assert(p_vci_ini_rw.reop.read() &&
5476	"illegal VCI response packet for ll tlb");
5477
5478	if ( p_vci_ini_rw.rerror.read() != vci_param::ERR_NORMAL )
5479	{
5480	r_vci_rsp_data_error = true;
5481	}
5482	else
5483	{
5484	r_dcache_miss_buf[0] = (data_t)p_vci_ini_rw.rdata.read();
5485	}
5486	r_dcache_itlb_ll_acc_req = false;
5487	r_vci_rsp_fsm = RSP_IDLE;
5488	break;
5489
5490	case RSP_ITLB_ACC_SC:
5491	m_cost_itlb_sc_transaction++;
5492	if ( ! p_vci_ini_rw.rspval.read() )
5493	break;
5494
5495	assert(p_vci_ini_rw.reop.read() &&
5496	"illegal VCI response packet for sc tlb");
5497
5498	if ( p_vci_ini_rw.rerror.read() != vci_param::ERR_NORMAL )
5499	{
5500	r_vci_rsp_data_error = true;
5501	}
5502	else if ( p_vci_ini_rw.rdata.read() == 1 ) // store conditional is not successful
5503	{
5504	r_dcache_tlb_sc_fail = true;
5505	//r_dcache_itlb_ll_acc_req = true;
5506	}
5507	r_dcache_itlb_sc_acc_req = false;
5508	r_vci_rsp_fsm = RSP_IDLE;
5509	break;
5510
5511	case RSP_INS_MISS:
5512	m_cost_imiss_transaction++;
5513	if ( ! p_vci_ini_rw.rspval.read() )
5514	break;
5515
5516	assert( (r_vci_rsp_cpt < m_icache_words) &&
5517	"The VCI response packet for instruction miss is too long");
5518	r_vci_rsp_cpt = r_vci_rsp_cpt + 1;
5519	r_icache_miss_buf[r_vci_rsp_cpt] = (data_t)p_vci_ini_rw.rdata.read();
5520
5521	if ( p_vci_ini_rw.reop.read() )
5522	{
5523	assert( (r_vci_rsp_cpt == m_icache_words - 1) &&
5524	"The VCI response packet for instruction miss is too short");
5525	r_icache_miss_req = false;
5526	r_vci_rsp_fsm = RSP_IDLE;
5527
5528	}
5529	if ( p_vci_ini_rw.rerror.read() != vci_param::ERR_NORMAL )
5530	{
5531	r_vci_rsp_ins_error = true;
5532	}
5533	break;
5534
5535	case RSP_INS_UNC:
5536	m_cost_icache_unc_transaction++;
5537	if ( ! p_vci_ini_rw.rspval.read() )
5538	break;
5539
5540	assert(p_vci_ini_rw.reop.read() &&
5541	"illegal VCI response packet for uncached instruction");
5542
5543	r_icache_miss_buf[0] = (data_t)p_vci_ini_rw.rdata.read();
5544	r_icache_buf_unc_valid = true;
5545	r_icache_unc_req = false;
5546	r_vci_rsp_fsm = RSP_IDLE;
5547
5548	if ( p_vci_ini_rw.rerror.read() != vci_param::ERR_NORMAL )
5549	{
5550	r_vci_rsp_ins_error = true;
5551	}
5552	break;
5553
5554	case RSP_DTLB_READ:
5555	m_cost_dtlbmiss_transaction++;
5556	if ( ! p_vci_ini_rw.rspval.read() )
5557	break;
5558
5559	assert(r_vci_rsp_cpt != m_dcache_words &&
5560	"illegal VCI response packet for data read miss");
5561
5562	r_vci_rsp_cpt = r_vci_rsp_cpt + 1;
5563	r_dcache_miss_buf[r_vci_rsp_cpt] = (data_t)p_vci_ini_rw.rdata.read();
5564	if ( p_vci_ini_rw.reop.read() )
5565	{
5566	assert(r_vci_rsp_cpt == m_dcache_words - 1 &&
5567	"illegal VCI response packet for data read miss");
5568	r_dcache_tlb_read_req = false;
5569	r_vci_rsp_fsm = RSP_IDLE;
5570	}
5571	if ( p_vci_ini_rw.rerror.read() != vci_param::ERR_NORMAL )
5572	{
5573	r_vci_rsp_data_error = true;
5574	}
5575	break;
5576
5577	case RSP_DTLB_ACC_LL:
5578	m_cost_dtlb_ll_transaction++;
5579	if ( ! p_vci_ini_rw.rspval.read() )
5580	break;
5581
5582	assert(p_vci_ini_rw.reop.read() &&
5583	"illegal VCI response packet for ll tlb");
5584
5585	if ( p_vci_ini_rw.rerror.read() != vci_param::ERR_NORMAL )
5586	{
5587	r_vci_rsp_data_error = true;
5588	}
5589	else
5590	{
5591	r_dcache_miss_buf[0] = (data_t)p_vci_ini_rw.rdata.read();
5592	}
5593	r_dcache_tlb_ll_acc_req = false;
5594	r_vci_rsp_fsm = RSP_IDLE;
5595	break;
5596
5597	case RSP_DTLB_ACC_SC:
5598	m_cost_dtlb_sc_transaction++;
5599	if ( ! p_vci_ini_rw.rspval.read() )
5600	break;
5601
5602	assert(p_vci_ini_rw.reop.read() &&
5603	"illegal VCI response packet for sc tlb");
5604
5605	if ( p_vci_ini_rw.rerror.read() != vci_param::ERR_NORMAL )
5606	{
5607	r_vci_rsp_data_error = true;
5608	}
5609	else if ( p_vci_ini_rw.rdata.read() == 1 ) // store conditional is not successful
5610	{
5611	r_dcache_tlb_sc_fail = true;
5612	//r_dcache_tlb_ll_acc_req = true;
5613	}
5614	r_dcache_tlb_sc_acc_req = false;
5615	r_vci_rsp_fsm = RSP_IDLE;
5616	break;
5617
5618	case RSP_DTLB_DIRTY_LL:
5619	m_cost_dtlb_ll_dirty_transaction++;
5620	if ( ! p_vci_ini_rw.rspval.read() )
5621	break;
5622
5623	assert(p_vci_ini_rw.reop.read() &&
5624	"illegal VCI response packet for ll tlb");
5625
5626	if ( p_vci_ini_rw.rerror.read() != vci_param::ERR_NORMAL )
5627	{
5628	r_vci_rsp_data_error = true;
5629	}
5630	else
5631	{
5632	r_dcache_miss_buf[0] = (data_t)p_vci_ini_rw.rdata.read();
5633	}
5634	r_dcache_tlb_ll_dirty_req = false;
5635	r_vci_rsp_fsm = RSP_IDLE;
5636	break;
5637
5638	case RSP_DTLB_DIRTY_SC:
5639	m_cost_dtlb_sc_dirty_transaction++;
5640	if ( ! p_vci_ini_rw.rspval.read() )
5641	break;
5642
5643	assert(p_vci_ini_rw.reop.read() &&
5644	"illegal VCI response packet for sc tlb");
5645
5646	if ( p_vci_ini_rw.rerror.read() != vci_param::ERR_NORMAL )
5647	{
5648	r_vci_rsp_data_error = true;
5649	}
5650	else if ( p_vci_ini_rw.rdata.read() == 1 ) // store conditional is not successful
5651	{
5652	r_dcache_tlb_sc_fail = true;
5653	//r_dcache_tlb_ll_dirty_req = true;
5654	}
5655	r_dcache_tlb_sc_dirty_req = false;
5656	r_vci_rsp_fsm = RSP_IDLE;
5657	break;
5658
5659	case RSP_DATA_UNC:
5660	m_cost_unc_transaction++;
5661	if ( ! p_vci_ini_rw.rspval.read() )
5662	break;
5663
5664	assert(p_vci_ini_rw.reop.read() &&
5665	"illegal VCI response packet for data read uncached");
5666
5667	if ( p_vci_ini_rw.rerror.read() != vci_param::ERR_NORMAL )
5668	{
5669	r_vci_rsp_data_error = true;
5670	}
5671	else
5672	{
5673	r_dcache_miss_buf[0] = (data_t)p_vci_ini_rw.rdata.read();
5674	r_dcache_buf_unc_valid = true;
5675	}
5676	r_dcache_unc_req = false;
5677	r_vci_rsp_fsm = RSP_IDLE;
5678	break;
5679
5680	case RSP_DATA_MISS:
5681	m_cost_dmiss_transaction++;
5682	if ( ! p_vci_ini_rw.rspval.read() )
5683	break;
5684
5685	assert(r_vci_rsp_cpt != m_dcache_words &&
5686	"illegal VCI response packet for data read miss");
5687
5688	r_vci_rsp_cpt = r_vci_rsp_cpt + 1;
5689	r_dcache_miss_buf[r_vci_rsp_cpt] = (data_t)p_vci_ini_rw.rdata.read();
5690	if ( p_vci_ini_rw.reop.read() )
5691	{
5692	assert(r_vci_rsp_cpt == m_dcache_words - 1 &&
5693	"illegal VCI response packet for data read miss");
5694	r_dcache_miss_req = false;
5695	r_vci_rsp_fsm = RSP_IDLE;
5696	}
5697	if ( p_vci_ini_rw.rerror.read() != vci_param::ERR_NORMAL )
5698	{
5699	r_vci_rsp_data_error = true;
5700	}
5701	break;
5702
5703	case RSP_DATA_WRITE:
5704	m_cost_write_transaction++;
5705	if ( ! p_vci_ini_rw.rspval.read() )
5706	break;
5707
5708	if ( p_vci_ini_rw.reop.read() )
5709	{
5710	r_vci_rsp_fsm = RSP_IDLE;
5711	r_dcache_write_req = false;
5712	}
5713	if ( p_vci_ini_rw.rerror.read() != vci_param::ERR_NORMAL )
5714	{
5715	m_iss.setWriteBerr();
5716	}
5717	break;
5718
5719	case RSP_INS_CLEANUP:
5720	case RSP_DATA_CLEANUP:
5721	if ( r_vci_rsp_fsm == RSP_INS_CLEANUP )
5722	{
5723	m_cost_icleanup_transaction++;
5724	}
5725	else
5726	{
5727	m_cost_dcleanup_transaction++;
5728	}
5729
5730	if ( ! p_vci_ini_c.rspval.read() )
5731	break;
5732	assert( p_vci_ini_c.reop.read() &&
5733	"illegal VCI response packet for icache cleanup");
5734	assert( (p_vci_ini_c.rerror.read() == vci_param::ERR_NORMAL) &&
5735	"error in response packet for icache cleanup");
5736
5737	if ( r_vci_rsp_fsm == RSP_INS_CLEANUP )
5738	{
5739	r_icache_cleanup_req = false;
5740	}
5741	else
5742	{
5743	r_dcache_cleanup_req = false;
5744	}
5745	r_vci_rsp_fsm = RSP_IDLE;
5746	break;
5747
5748	} // end switch r_vci_rsp_fsm
5749	} // end transition()
5750
5751	///////////////////////
5752	tmpl(void)::genMoore()
5753	///////////////////////
5754	{
5755	// VCI initiator response
5756
5757	p_vci_ini_rw.rspack = true;
5758	p_vci_ini_c.rspack = true;
5759
5760	// VCI initiator command
5761
5762	p_vci_ini_rw.pktid = 0;
5763	p_vci_ini_rw.srcid = m_srcid_rw;
5764	p_vci_ini_rw.cons = false;
5765	p_vci_ini_rw.wrap = false;
5766	p_vci_ini_rw.contig = true;
5767	p_vci_ini_rw.clen = 0;
5768	p_vci_ini_rw.cfixed = false;
5769
5770	p_vci_ini_c.cmdval = false;
5771	p_vci_ini_c.address = 0;
5772	p_vci_ini_c.wdata = 0;
5773	p_vci_ini_c.be = 0;
5774	p_vci_ini_c.plen = 0;
5775	p_vci_ini_c.cmd = vci_param::CMD_NOP;
5776	p_vci_ini_c.trdid = 0;
5777	p_vci_ini_c.pktid = 0;
5778	p_vci_ini_c.srcid = 0;
5779	p_vci_ini_c.cons = false;
5780	p_vci_ini_c.wrap = false;
5781	p_vci_ini_c.contig = false;
5782	p_vci_ini_c.clen = 0;
5783	p_vci_ini_c.cfixed = false;
5784	p_vci_ini_c.eop = false;
5785
5786	switch (r_vci_cmd_fsm) {
5787
5788	case CMD_IDLE:
5789	p_vci_ini_rw.cmdval = false;
5790	p_vci_ini_rw.address = 0;
5791	p_vci_ini_rw.wdata = 0;
5792	p_vci_ini_rw.be = 0;
5793	p_vci_ini_rw.trdid = 0;
5794	p_vci_ini_rw.plen = 0;
5795	p_vci_ini_rw.cmd = vci_param::CMD_NOP;
5796	p_vci_ini_rw.eop = false;
5797	break;
5798
5799	case CMD_ITLB_READ:
5800	p_vci_ini_rw.cmdval = true;
5801	p_vci_ini_rw.address = r_icache_paddr_save.read() & m_dcache_yzmask;
5802	p_vci_ini_rw.wdata = 0;
5803	p_vci_ini_rw.be = 0xF;
5804	p_vci_ini_rw.trdid = 1; // via data cache cached read
5805	p_vci_ini_rw.plen = m_dcache_words << 2;
5806	p_vci_ini_rw.cmd = vci_param::CMD_READ;
5807	p_vci_ini_rw.eop = true;
5808	break;
5809
5810	case CMD_ITLB_ACC_LL:
5811	p_vci_ini_rw.cmdval = true;
5812	p_vci_ini_rw.address = r_icache_paddr_save.read() & ~0x3;
5813	p_vci_ini_rw.wdata = 0;
5814	p_vci_ini_rw.be = 0xF;
5815	p_vci_ini_rw.trdid = 0; // data cache uncached read
5816	p_vci_ini_rw.plen = 4;
5817	p_vci_ini_rw.cmd = vci_param::CMD_LOCKED_READ;
5818	p_vci_ini_rw.eop = true;
5819	break;
5820
5821	case CMD_ITLB_ACC_SC:
5822	p_vci_ini_rw.cmdval = true;
5823	p_vci_ini_rw.address = r_icache_paddr_save.read() & ~0x3;
5824	p_vci_ini_rw.wdata = r_icache_pte_update.read();
5825	p_vci_ini_rw.be = 0xF;
5826	p_vci_ini_rw.trdid = 0; // data cache uncached read
5827	p_vci_ini_rw.plen = 4;
5828	p_vci_ini_rw.cmd = vci_param::CMD_STORE_COND;
5829	p_vci_ini_rw.eop = true;
5830	break;
5831
5832	case CMD_INS_MISS:
5833	p_vci_ini_rw.cmdval = true;
5834	p_vci_ini_rw.address = r_icache_paddr_save.read() & m_icache_yzmask;
5835	p_vci_ini_rw.wdata = 0;
5836	p_vci_ini_rw.be = 0xF;
5837	p_vci_ini_rw.trdid = 3; // ins cache cached read
5838	p_vci_ini_rw.plen = m_icache_words << 2;
5839	p_vci_ini_rw.cmd = vci_param::CMD_READ;
5840	p_vci_ini_rw.eop = true;
5841	break;
5842
5843	case CMD_INS_UNC:
5844	p_vci_ini_rw.cmdval = true;
5845	p_vci_ini_rw.address = r_icache_paddr_save.read() & ~0x3;
5846	p_vci_ini_rw.wdata = 0;
5847	p_vci_ini_rw.be = 0xF;
5848	p_vci_ini_rw.trdid = 2; // ins cache uncached read
5849	p_vci_ini_rw.plen = 4;
5850	p_vci_ini_rw.cmd = vci_param::CMD_READ;
5851	p_vci_ini_rw.eop = true;
5852	break;
5853
5854	case CMD_DTLB_READ:
5855	p_vci_ini_rw.cmdval = true;
5856	p_vci_ini_rw.address = r_dcache_tlb_paddr.read() & m_dcache_yzmask;
5857	p_vci_ini_rw.wdata = 0;
5858	p_vci_ini_rw.be = 0xF;
5859	p_vci_ini_rw.trdid = 1; // via dcache cached read
5860	p_vci_ini_rw.plen = m_dcache_words << 2;
5861	p_vci_ini_rw.cmd = vci_param::CMD_READ;
5862	p_vci_ini_rw.eop = true;
5863	break;
5864
5865	case CMD_DTLB_ACC_LL:
5866	p_vci_ini_rw.cmdval = true;
5867	p_vci_ini_rw.address = r_dcache_tlb_paddr.read() & ~0x3;
5868	p_vci_ini_rw.wdata = 0;
5869	p_vci_ini_rw.be = 0xF;
5870	p_vci_ini_rw.trdid = 0; // data cache uncached read
5871	p_vci_ini_rw.plen = 4;
5872	p_vci_ini_rw.cmd = vci_param::CMD_LOCKED_READ;
5873	p_vci_ini_rw.eop = true;
5874	break;
5875
5876	case CMD_DTLB_ACC_SC:
5877	p_vci_ini_rw.cmdval = true;
5878	p_vci_ini_rw.address = r_dcache_tlb_paddr.read() & ~0x3;
5879	p_vci_ini_rw.wdata = r_dcache_pte_update.read();
5880	p_vci_ini_rw.be = 0xF;
5881	p_vci_ini_rw.trdid = 0; // data cache uncached read
5882	p_vci_ini_rw.plen = 4;
5883	p_vci_ini_rw.cmd = vci_param::CMD_STORE_COND;
5884	p_vci_ini_rw.eop = true;
5885	break;
5886
5887	case CMD_DTLB_DIRTY_LL:
5888	p_vci_ini_rw.cmdval = true;
5889	p_vci_ini_rw.address = r_dcache_tlb_paddr.read() & ~0x3;
5890	p_vci_ini_rw.wdata = 0;
5891	p_vci_ini_rw.be = 0xF;
5892	p_vci_ini_rw.trdid = 0; // data cache uncached read
5893	p_vci_ini_rw.plen = 4;
5894	p_vci_ini_rw.cmd = vci_param::CMD_LOCKED_READ;
5895	p_vci_ini_rw.eop = true;
5896	break;
5897
5898	case CMD_DTLB_DIRTY_SC:
5899	p_vci_ini_rw.cmdval = true;
5900	p_vci_ini_rw.address = r_dcache_tlb_paddr.read() & ~0x3;
5901	p_vci_ini_rw.wdata = r_dcache_pte_update.read();
5902	p_vci_ini_rw.be = 0xF;
5903	p_vci_ini_rw.trdid = 0; // data cache uncached read
5904	p_vci_ini_rw.plen = 4;
5905	p_vci_ini_rw.cmd = vci_param::CMD_STORE_COND;
5906	p_vci_ini_rw.eop = true;
5907	break;
5908
5909	case CMD_DATA_UNC:
5910	p_vci_ini_rw.cmdval = true;
5911	p_vci_ini_rw.address = r_dcache_paddr_save.read() & ~0x3;
5912	p_vci_ini_rw.trdid = 0; // data cache uncached read
5913	p_vci_ini_rw.plen = 4;
5914	p_vci_ini_rw.eop = true;
5915	switch(r_dcache_type_save) {
5916	case iss_t::DATA_READ:
5917	p_vci_ini_rw.wdata = 0;
5918	p_vci_ini_rw.be = r_dcache_be_save.read();
5919	p_vci_ini_rw.cmd = vci_param::CMD_READ;
5920	break;
5921	case iss_t::DATA_LL:
5922	p_vci_ini_rw.wdata = 0;
5923	p_vci_ini_rw.be = 0xF;
5924	p_vci_ini_rw.cmd = vci_param::CMD_LOCKED_READ;
5925	break;
5926	case iss_t::DATA_SC:
5927	p_vci_ini_rw.wdata = r_dcache_wdata_save.read();
5928	p_vci_ini_rw.be = 0xF;
5929	p_vci_ini_rw.cmd = vci_param::CMD_STORE_COND;
5930	break;
5931	default:
5932	assert("this should not happen");
5933	}
5934	break;
5935
5936	case CMD_DATA_WRITE:
5937	p_vci_ini_rw.cmdval = true;
5938	p_vci_ini_rw.address = r_wbuf.getAddress(r_vci_cmd_cpt);
5939	p_vci_ini_rw.wdata = r_wbuf.getData(r_vci_cmd_cpt);
5940	p_vci_ini_rw.be = r_wbuf.getBe(r_vci_cmd_cpt);
5941	p_vci_ini_rw.trdid = 0; // data cache write
5942	p_vci_ini_rw.plen = (r_vci_cmd_max - r_vci_cmd_min + 1)<<2;
5943	p_vci_ini_rw.cmd = vci_param::CMD_WRITE;
5944	p_vci_ini_rw.eop = (r_vci_cmd_cpt == r_vci_cmd_max);
5945	break;
5946
5947	case CMD_DATA_MISS:
5948	p_vci_ini_rw.cmdval = true;
5949	p_vci_ini_rw.address = r_dcache_paddr_save.read() & m_dcache_yzmask;
5950	p_vci_ini_rw.wdata = 0;
5951	p_vci_ini_rw.be = 0xF;
5952	p_vci_ini_rw.trdid = 1; // data cache cached read
5953	p_vci_ini_rw.plen = m_dcache_words << 2;
5954	p_vci_ini_rw.cmd = vci_param::CMD_READ;
5955	p_vci_ini_rw.eop = true;
5956	break;
5957
5958	case CMD_INS_CLEANUP:
5959	case CMD_DATA_CLEANUP:
5960	p_vci_ini_rw.cmdval = false;
5961	p_vci_ini_rw.address = 0;
5962	p_vci_ini_rw.wdata = 0;
5963	p_vci_ini_rw.be = 0;
5964	p_vci_ini_rw.trdid = 0;
5965	p_vci_ini_rw.plen = 0;
5966	p_vci_ini_rw.cmd = vci_param::CMD_NOP;
5967	p_vci_ini_rw.eop = false;
5968
5969	p_vci_ini_c.cmdval = true;
5970	if ( r_vci_cmd_fsm == CMD_INS_CLEANUP )
5971	{
5972	p_vci_ini_c.address = r_icache_cleanup_line.read() * (m_icache_words<<2);
5973	p_vci_ini_c.trdid = 1; // cleanup instruction
5974	}
5975	else
5976	{
5977	p_vci_ini_c.address = r_dcache_cleanup_line.read() * (m_dcache_words<<2);
5978	p_vci_ini_c.trdid = 0; // cleanup data
5979	}
5980	p_vci_ini_c.wdata = 0;
5981	p_vci_ini_c.be = 0;
5982	p_vci_ini_c.plen = 4;
5983	p_vci_ini_c.cmd = vci_param::CMD_WRITE;
5984	p_vci_ini_c.pktid = 0;
5985	p_vci_ini_c.srcid = m_srcid_c;
5986	p_vci_ini_c.cons = false;
5987	p_vci_ini_c.wrap = false;
5988	p_vci_ini_c.contig = false;
5989	p_vci_ini_c.clen = 0;
5990	p_vci_ini_c.cfixed = false;
5991	p_vci_ini_c.eop = true;
5992	break;
5993
5994	} // end switch r_vci_cmd_fsm
5995
5996	// VCI_TGT
5997	switch ( r_vci_tgt_fsm.read() ) {
5998
5999	case TGT_IDLE:
6000	case TGT_UPDT_WORD:
6001	case TGT_UPDT_DATA:
6002	p_vci_tgt.cmdack = true;
6003	p_vci_tgt.rspval = false;
6004	break;
6005
6006	case TGT_RSP_BROADCAST:
6007	p_vci_tgt.cmdack = false;
6008	p_vci_tgt.rspval = !r_tgt_icache_req.read() && !r_tgt_dcache_req.read() && ( r_tgt_icache_rsp \| r_tgt_dcache_rsp );
6009	p_vci_tgt.rsrcid = r_tgt_srcid.read();
6010	p_vci_tgt.rpktid = r_tgt_pktid.read();
6011	p_vci_tgt.rtrdid = r_tgt_trdid.read();
6012	p_vci_tgt.rdata = 0;
6013	p_vci_tgt.rerror = 0;
6014	p_vci_tgt.reop = true;
6015	break;
6016
6017	case TGT_RSP_ICACHE:
6018	p_vci_tgt.cmdack = false;
6019	p_vci_tgt.rspval = !r_tgt_icache_req.read() && r_tgt_icache_rsp.read();
6020	p_vci_tgt.rsrcid = r_tgt_srcid.read();
6021	p_vci_tgt.rpktid = r_tgt_pktid.read();
6022	p_vci_tgt.rtrdid = r_tgt_trdid.read();
6023	p_vci_tgt.rdata = 0;
6024	p_vci_tgt.rerror = 0;
6025	p_vci_tgt.reop = true;
6026	break;
6027
6028	case TGT_RSP_DCACHE:
6029	p_vci_tgt.cmdack = false;
6030	p_vci_tgt.rspval = !r_tgt_dcache_req.read() && r_tgt_dcache_rsp.read();
6031	p_vci_tgt.rsrcid = r_tgt_srcid.read();
6032	p_vci_tgt.rpktid = r_tgt_pktid.read();
6033	p_vci_tgt.rtrdid = r_tgt_trdid.read();
6034	p_vci_tgt.rdata = 0;
6035	p_vci_tgt.rerror = 0;
6036	p_vci_tgt.reop = true;
6037	break;
6038
6039	case TGT_REQ_BROADCAST:
6040	case TGT_REQ_ICACHE:
6041	case TGT_REQ_DCACHE:
6042	p_vci_tgt.cmdack = false;
6043	p_vci_tgt.rspval = false;
6044	break;
6045
6046	} // end switch TGT_FSM
6047	#ifdef SOCLIB_MODULE_DEBUG
6048	std::cout << name()
6049	<< " Moore R/W:" << std::hex
6050	<< " p_vci_ini_rw.cmdval: " << p_vci_ini_rw.cmdval
6051	<< " p_vci_ini_rw.address: " << p_vci_ini_rw.address
6052	<< " p_vci_ini_rw.wdata: " << p_vci_ini_rw.wdata
6053	<< " p_vci_ini_rw.cmd: " << p_vci_ini_rw.cmd
6054	<< " p_vci_ini_rw.eop: " << p_vci_ini_rw.eop
6055	<< std::endl;
6056
6057	std::cout << name()
6058	<< " Moore TGT:" << std::hex
6059	<< " p_vci_tgt.rspval: " << p_vci_tgt.rspval
6060	<< std::endl;
6061
6062	std::cout << name()
6063	<< " Moore Cleanup:" << std::hex
6064	<< " p_vci_ini_c.cmdval: " << p_vci_ini_c.cmdval
6065	<< " p_vci_ini_c.address: " << p_vci_ini_c.address
6066	<< " p_vci_ini_c.trdid: " << p_vci_ini_c.trdid
6067	<< " p_vci_ini_c.cmd: " << p_vci_ini_c.cmd
6068	<< " p_vci_ini_c.eop: " << p_vci_ini_c.eop
6069	<< std::endl;
6070	#endif
6071	}
6072
6073	}}
6074
6075	// Local Variables:
6076	// tab-width: 4
6077	// c-basic-offset: 4
6078	// c-file-offsets:((innamespace . 0)(inline-open . 0))
6079	// indent-tabs-mode: nil
6080	// End:
6081
6082	// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=4:softtabstop=4
6083
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