1 | /* SOCLIB_LGPL_HEADER_BEGIN |
---|
2 | * |
---|
3 | * This file is part of SoCLib, GNU LGPLv2.1. |
---|
4 | * |
---|
5 | * SoCLib is free software; you can redistribute it and/or modify it |
---|
6 | * under the terms of the GNU Lesser General Public License as published |
---|
7 | * by the Free Software Foundation; version 2.1 of the License. |
---|
8 | * |
---|
9 | * SoCLib is distributed in the hope that it will be useful, but |
---|
10 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
---|
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
---|
12 | * Lesser General Public License for more details. |
---|
13 | * |
---|
14 | * You should have received a copy of the GNU Lesser General Public |
---|
15 | * License along with SoCLib; if not, write to the Free Software |
---|
16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
---|
17 | * 02110-1301 USA |
---|
18 | * |
---|
19 | * SOCLIB_LGPL_HEADER_END |
---|
20 | * |
---|
21 | * Author : Abdelmalek SI MERABET |
---|
22 | * Date : February 2013 |
---|
23 | * Copyright: UPMC - LIP6 |
---|
24 | */ |
---|
25 | ///////////////////////////////////////////////////////////////////////////// |
---|
26 | // Ring : Broadcast-inval : 2 flits l2(1)->l1(n) // |
---|
27 | //--------------------------------------------------------------------------- |
---|
28 | // 1st flit | eop |xmin |xmax |ymin |ymax | memcid | lid* |1| |
---|
29 | // (40) (1) (5) (5) (5) (5) (14) (4) (1) |
---|
30 | //--------------------------------------------------------------------------- |
---|
31 | // next flit | eop |res| trdid | nline | |
---|
32 | // (40) (1) (1) (4) (34) |
---|
33 | //--------------------------------------------------------------------------- |
---|
34 | // *lid : local id (port number on ring) for sequential broadcast |
---|
35 | ////////////////////////////////////////////////////////////////////////////// |
---|
36 | // Ring : Multicast-inval 2 flits (l2->l1) // |
---|
37 | //---------------------------------------------------------------------------- |
---|
38 | // 1st flit | eop | procid |res| memcid | trdid | type |0| |
---|
39 | // (40) (1) (14) (3) (14) (4) (3) (1) |
---|
40 | //---------------------------------------------------------------------------- |
---|
41 | // next flit | eop |res | nline | |
---|
42 | // (40) (1) (5) (34) |
---|
43 | ////////////////////////////////////////////////////////////////////////////// |
---|
44 | // Ring : Multicast-update 2+N flits l2(1)->l1(n) // |
---|
45 | //---------------------------------------------------------------------------- |
---|
46 | // 1st flit | eop | procid |res| memcid | trdid | type |0| |
---|
47 | // (40) (1) (14) (3) (14) (4) (3) (1) |
---|
48 | //---------------------------------------------------------------------------- |
---|
49 | // next flit | eop |res| wdidx | nline | |
---|
50 | // (40) (1) (1) (4) (34) |
---|
51 | //---------------------------------------------------------------------------- |
---|
52 | // next flits | eop | res | be | wdata | |
---|
53 | // (40) (1) (3) (4) (32) |
---|
54 | ////////////////////////////////////////////////////////////////////////////// |
---|
55 | // Ring : Cleanup Ack 1 flit l2(1)-l1(n) // |
---|
56 | //---------------------------------------------------------------------------- |
---|
57 | // 1st flit | eop | procid |res| set | way | type |0| |
---|
58 | // (40) (1) (14) (1) (16) (4) (3) (1) |
---|
59 | //---------------------------------------------------------------------------- |
---|
60 | // Type | cleanup ACK | Update/Inval | Data/instr | |
---|
61 | // (3) (1) (1) (1) |
---|
62 | //////////////////////////////////////////////////////////////////// |
---|
63 | // Ring : cleanup 2 flits l1(n)->l2(1) // |
---|
64 | //------------------------------------------------------------------ |
---|
65 | // 1st flit | eop | clustid*| procid | nline | way | type | |
---|
66 | // (33) (1) (10) (14) (2) (4) (2) |
---|
67 | // next flit | eop | nline | |
---|
68 | // (33) (1) (32) |
---|
69 | ///////////////////////////////////////////////////////////////////// |
---|
70 | // Ring : multicast ack 1 flit l1(n)->l2(1) // |
---|
71 | //------------------------------------------------------------------ |
---|
72 | // 1st flit | eop | clustid*| res | trdid | type | |
---|
73 | // (33) (1) (10) (16) (4) (2) |
---|
74 | //------------------------------------------------------------------ |
---|
75 | // Type | cleanup/MulticastACK | Data/instr | |
---|
76 | // (2) (1) (1) |
---|
77 | // *clusterid : identifiy cluster id of the dest memory cache. |
---|
78 | // all memory caches have the same Identifier in their clusters. |
---|
79 | //------------------------------------------------------------------ |
---|
80 | |
---|
81 | #ifndef SOCLIB_CABA_DSPIN_SIMPLE_RING_INITIATOR_FAST_C_H |
---|
82 | #define SOCLIB_CABA_DSPIN_SIMPLE_RING_INITIATOR_FAST_C_H |
---|
83 | |
---|
84 | #include "generic_fifo.h" |
---|
85 | #include "mapping_table.h" |
---|
86 | #include "ring_signals_fast.h" |
---|
87 | #include "dspin_interface.h" |
---|
88 | |
---|
89 | #define I_DEBUG |
---|
90 | |
---|
91 | namespace soclib { namespace caba { |
---|
92 | |
---|
93 | namespace { |
---|
94 | |
---|
95 | const char *ring_cmd_fsm_state_str_si[] = { |
---|
96 | "CMD_IDLE", |
---|
97 | "DEFAULT", |
---|
98 | "BDC_FIRST", |
---|
99 | "BDC_SECOND", |
---|
100 | "KEEP", |
---|
101 | }; |
---|
102 | |
---|
103 | #ifdef I_DEBUG |
---|
104 | |
---|
105 | const char *ring_rsp_fsm_state_str_si[] = { |
---|
106 | "RSP_IDLE", |
---|
107 | "LOCAL", |
---|
108 | "RING", |
---|
109 | }; |
---|
110 | #endif |
---|
111 | } // end namespace |
---|
112 | |
---|
113 | template<typename vci_param, int ring_cmd_data_size, int ring_rsp_data_size> |
---|
114 | class DspinSimpleRingInitiatorFastC |
---|
115 | { |
---|
116 | |
---|
117 | typedef SimpleRingSignals ring_signal_t; |
---|
118 | typedef DspinInput<ring_cmd_data_size> cmd_in_t; |
---|
119 | typedef DspinOutput<ring_rsp_data_size> rsp_out_t; |
---|
120 | |
---|
121 | private: |
---|
122 | enum ring_rsp_fsm_state_e { |
---|
123 | RSP_IDLE, // waiting for first flit of a response packet |
---|
124 | LOCAL, // next flit of a local rsp packet |
---|
125 | RING, // next flit of a ring rsp packet |
---|
126 | }; |
---|
127 | |
---|
128 | enum ring_cmd_fsm_state_e { |
---|
129 | CMD_IDLE, |
---|
130 | DEFAULT, |
---|
131 | BDC_FIRST, |
---|
132 | BDC_SECOND, |
---|
133 | KEEP, |
---|
134 | }; |
---|
135 | |
---|
136 | // structural parameters |
---|
137 | std::string m_name; |
---|
138 | bool m_alloc_init; |
---|
139 | |
---|
140 | |
---|
141 | // internal fifos |
---|
142 | GenericFifo<uint64_t > m_cmd_fifo; // fifo for the local command packet |
---|
143 | GenericFifo<uint64_t > m_rsp_fifo; // fifo for the local response packet |
---|
144 | |
---|
145 | // routing table |
---|
146 | //soclib::common::AddressMaskingTable<uint32_t> m_rt; |
---|
147 | //soclib::common::AddressDecodingTable<uint32_t, bool> m_lt; |
---|
148 | |
---|
149 | uint64_t r_brdcst_save; |
---|
150 | //uint32_t m_srcid; |
---|
151 | uint32_t m_nb_target; |
---|
152 | |
---|
153 | sc_core::sc_signal<uint32_t> r_cpt_tgt; // target id for sequential broadcast |
---|
154 | sc_core::sc_signal<uint32_t> r_ring_cmd_fsm; // ring command (l2->l1) packet FSM |
---|
155 | sc_core::sc_signal<uint32_t> r_ring_rsp_fsm; // ring response (l1->l2) packet FSM |
---|
156 | |
---|
157 | public : |
---|
158 | |
---|
159 | #define __renRegInitS(x) x((((std::string) name)+"_" #x).c_str()) |
---|
160 | |
---|
161 | DspinSimpleRingInitiatorFastC( |
---|
162 | const char *name, |
---|
163 | bool alloc_init, |
---|
164 | const int &wrapper_fifo_depth, |
---|
165 | const uint32_t &nb_target) |
---|
166 | : m_name(name), |
---|
167 | m_alloc_init(alloc_init), |
---|
168 | m_cmd_fifo(((std::string) name)+"m_cmd_fifo", wrapper_fifo_depth), |
---|
169 | m_rsp_fifo(((std::string) name)+"m_rsp_fifo", wrapper_fifo_depth), |
---|
170 | //m_rt(mt.getIdMaskingTable(ringid.level())), |
---|
171 | //m_lt(mt.getIdLocalityTable(ringid)), |
---|
172 | //m_srcid(srcid), |
---|
173 | m_nb_target(nb_target), |
---|
174 | __renRegInitS(r_cpt_tgt), |
---|
175 | __renRegInitS(r_ring_cmd_fsm), |
---|
176 | __renRegInitS(r_ring_rsp_fsm) |
---|
177 | |
---|
178 | {} // end constructor |
---|
179 | |
---|
180 | void reset() |
---|
181 | { |
---|
182 | if(m_alloc_init) |
---|
183 | r_ring_cmd_fsm = DEFAULT; |
---|
184 | else |
---|
185 | r_ring_cmd_fsm = CMD_IDLE; |
---|
186 | |
---|
187 | r_ring_rsp_fsm = RSP_IDLE; |
---|
188 | m_cmd_fifo.init(); |
---|
189 | m_rsp_fifo.init(); |
---|
190 | } |
---|
191 | |
---|
192 | void transition(const cmd_in_t &p_cmd_in, const rsp_out_t &p_rsp_out, const ring_signal_t p_ring_in, cmd_str &init_cmd, bool &init_rsp_val) |
---|
193 | { |
---|
194 | |
---|
195 | bool cmd_fifo_get = false; |
---|
196 | bool cmd_fifo_put = false; |
---|
197 | uint64_t cmd_fifo_data = 0; |
---|
198 | |
---|
199 | bool rsp_fifo_put = false; |
---|
200 | uint64_t rsp_fifo_data = 0; |
---|
201 | |
---|
202 | //////////// ACCESS DSPIN FIFOS /////////////////// |
---|
203 | if (p_cmd_in.write.read()) { |
---|
204 | #ifdef I_DEBUG |
---|
205 | std::cout << sc_time_stamp() << " -- " << m_name << " -- DSPIN FIFO" |
---|
206 | << " -- cmd in rok : " << p_cmd_in.write |
---|
207 | << " -- in data : " << std::hex << p_cmd_in.data.read() |
---|
208 | << " -- fifo wok : " << m_cmd_fifo.wok() |
---|
209 | << std::endl; |
---|
210 | #endif |
---|
211 | cmd_fifo_data = (uint64_t) p_cmd_in.data.read(); |
---|
212 | cmd_fifo_put = m_cmd_fifo.wok(); |
---|
213 | } |
---|
214 | |
---|
215 | bool rsp_fifo_get = p_rsp_out.read.read(); |
---|
216 | //////////// RING CMD FSM ///////////////////////// |
---|
217 | switch( r_ring_cmd_fsm ) |
---|
218 | { |
---|
219 | case CMD_IDLE: |
---|
220 | #ifdef I_DEBUG |
---|
221 | std::cout << sc_time_stamp() << " -- " << m_name << " -- r_ring_cmd_fsm : CMD_IDLE " |
---|
222 | << " -- in grant : " << p_ring_in.cmd_grant |
---|
223 | << " -- fifo rok : " << m_cmd_fifo.rok() |
---|
224 | << " -- fifo data : " << std::hex << m_cmd_fifo.read() |
---|
225 | << std::endl; |
---|
226 | #endif |
---|
227 | if ( p_ring_in.cmd_grant && m_cmd_fifo.rok() ) |
---|
228 | { |
---|
229 | |
---|
230 | |
---|
231 | if (m_cmd_fifo.read() & 0x1 == 0x1) // broadcast |
---|
232 | { |
---|
233 | r_cpt_tgt = 0; |
---|
234 | r_brdcst_save = m_cmd_fifo.read(); // save first flit of brdcst |
---|
235 | r_ring_cmd_fsm = BDC_FIRST; |
---|
236 | |
---|
237 | } else { |
---|
238 | r_ring_cmd_fsm = KEEP; |
---|
239 | } |
---|
240 | } |
---|
241 | break; |
---|
242 | |
---|
243 | case DEFAULT: |
---|
244 | |
---|
245 | if ( m_cmd_fifo.rok()) // && p_ring_in.cmd_wok.read() ) |
---|
246 | { |
---|
247 | #ifdef I_DEBUG |
---|
248 | std::cout << sc_time_stamp() << " -- " << m_name |
---|
249 | << " -- r_ring_cmd_fsm : DEFAULT " |
---|
250 | << " -- in grant : " << p_ring_in.cmd_grant |
---|
251 | << " -- fifo rok : " << m_cmd_fifo.rok() |
---|
252 | << " -- fifo_cmd_data : " << std::hex << m_cmd_fifo.read() |
---|
253 | << std::endl; |
---|
254 | #endif |
---|
255 | bool eop = ( (int) ((m_cmd_fifo.read() >> (ring_cmd_data_size - 1) ) & 0x1) == 1); |
---|
256 | |
---|
257 | if (m_cmd_fifo.read() & 0x1 == 0x1) // broadcast |
---|
258 | { |
---|
259 | r_cpt_tgt = 0; |
---|
260 | r_brdcst_save = m_cmd_fifo.read(); // save first flit of brdcst |
---|
261 | r_ring_cmd_fsm = BDC_FIRST; |
---|
262 | } |
---|
263 | // |
---|
264 | else |
---|
265 | { |
---|
266 | if ( eop && p_ring_in.cmd_r ) |
---|
267 | { |
---|
268 | cmd_fifo_get = true; |
---|
269 | if ( p_ring_in.cmd_grant ) |
---|
270 | r_ring_cmd_fsm = DEFAULT; |
---|
271 | else |
---|
272 | r_ring_cmd_fsm = CMD_IDLE; |
---|
273 | } |
---|
274 | |
---|
275 | if (!eop || !p_ring_in.cmd_r) |
---|
276 | { |
---|
277 | cmd_fifo_get = p_ring_in.cmd_r; |
---|
278 | r_ring_cmd_fsm = KEEP; |
---|
279 | } |
---|
280 | |
---|
281 | } |
---|
282 | |
---|
283 | } |
---|
284 | else if ( !p_ring_in.cmd_grant) |
---|
285 | r_ring_cmd_fsm = CMD_IDLE; |
---|
286 | break; |
---|
287 | |
---|
288 | case BDC_FIRST: |
---|
289 | |
---|
290 | #ifdef I_DEBUG |
---|
291 | std::cout << sc_time_stamp() << " -- " << m_name << " -- r_ring_cmd_fsm : BDC_FIRST " |
---|
292 | << " -- in grant : " << p_ring_in.cmd_grant |
---|
293 | << " -- cpt_tgt : " << r_cpt_tgt |
---|
294 | << " -- fifo rok : " << m_cmd_fifo.rok() |
---|
295 | << " -- in wok : " << p_ring_in.cmd_r |
---|
296 | << " -- fifo_cmd_data : " << std::hex << m_cmd_fifo.read() |
---|
297 | << std::endl; |
---|
298 | #endif |
---|
299 | |
---|
300 | if (p_ring_in.cmd_r) |
---|
301 | { |
---|
302 | if (r_cpt_tgt.read() == 0) |
---|
303 | { |
---|
304 | cmd_fifo_get = true; |
---|
305 | } |
---|
306 | r_ring_cmd_fsm = BDC_SECOND; |
---|
307 | } |
---|
308 | break; |
---|
309 | |
---|
310 | case BDC_SECOND: |
---|
311 | #ifdef I_DEBUG |
---|
312 | std::cout << sc_time_stamp() << " -- " << m_name << " -- r_ring_cmd_fsm : BDC_SECOND " |
---|
313 | << " -- in grant : " << p_ring_in.cmd_grant |
---|
314 | << " -- fifo rok : " << m_cmd_fifo.rok() |
---|
315 | << " -- in wok : " << p_ring_in.cmd_r |
---|
316 | << " -- fifo_cmd_data : " << std::hex << m_cmd_fifo.read() |
---|
317 | << std::endl; |
---|
318 | #endif |
---|
319 | if(m_cmd_fifo.rok() && p_ring_in.cmd_r) |
---|
320 | { |
---|
321 | if(r_cpt_tgt.read() == m_nb_target - 1) |
---|
322 | { |
---|
323 | cmd_fifo_get = true; |
---|
324 | |
---|
325 | if ( p_ring_in.cmd_grant ) |
---|
326 | r_ring_cmd_fsm = DEFAULT; |
---|
327 | else |
---|
328 | r_ring_cmd_fsm = CMD_IDLE; |
---|
329 | } |
---|
330 | else |
---|
331 | { |
---|
332 | r_cpt_tgt = r_cpt_tgt + 1; |
---|
333 | r_ring_cmd_fsm = BDC_FIRST; |
---|
334 | } |
---|
335 | |
---|
336 | } |
---|
337 | break; |
---|
338 | |
---|
339 | case KEEP: |
---|
340 | #ifdef I_DEBUG |
---|
341 | std::cout << std::dec << sc_time_stamp() << " - " << m_name |
---|
342 | << " - r_ring_cmd_fsm = " << ring_cmd_fsm_state_str_si[r_ring_cmd_fsm] |
---|
343 | << " -- in grant : " << p_ring_in.cmd_grant |
---|
344 | << " -- fifo ROK : " << m_cmd_fifo.rok() |
---|
345 | << " -- in wok : " << p_ring_in.cmd_r |
---|
346 | << " -- fifo data : " << std::hex << m_cmd_fifo.read() |
---|
347 | << std::endl; |
---|
348 | #endif |
---|
349 | if(m_cmd_fifo.rok() && p_ring_in.cmd_r ) |
---|
350 | { |
---|
351 | cmd_fifo_get = true; |
---|
352 | if (((int) (m_cmd_fifo.read() >> (ring_cmd_data_size - 1) ) & 0x1) == 1) // 39 |
---|
353 | { |
---|
354 | if ( p_ring_in.cmd_grant ) |
---|
355 | r_ring_cmd_fsm = DEFAULT; |
---|
356 | else |
---|
357 | r_ring_cmd_fsm = CMD_IDLE; |
---|
358 | } |
---|
359 | } |
---|
360 | break; |
---|
361 | |
---|
362 | } // end switch ring cmd fsm |
---|
363 | |
---|
364 | /////////// RING RSP FSM //////////////////////// |
---|
365 | |
---|
366 | switch( r_ring_rsp_fsm ) |
---|
367 | { |
---|
368 | case RSP_IDLE: |
---|
369 | { |
---|
370 | |
---|
371 | //uint32_t rsrcid = (uint32_t) ((sc_dt::sc_uint<vci_param::S>) ((p_ring_in.rsp_data >> (ring_rsp_data_size - 1)) << (vci_param::S))); |
---|
372 | bool islocal = true; // m_lt[rsrcid] && (m_rt[rsrcid] == m_srcid); |
---|
373 | bool reop = ((p_ring_in.rsp_data >> (ring_rsp_data_size - 1)) & 0x1) == 1; |
---|
374 | #ifdef I_DEBUG |
---|
375 | if(p_ring_in.rsp_w) { |
---|
376 | std::cout << std::dec << sc_time_stamp() << " - " << m_name |
---|
377 | << " - r_ring_rsp_fsm = " << ring_rsp_fsm_state_str_si[r_ring_rsp_fsm] |
---|
378 | << " -- in rok : " << p_ring_in.rsp_w |
---|
379 | << " -- in wok : " << p_ring_in.rsp_r |
---|
380 | << " -- fifo wok : " << m_rsp_fifo.wok() |
---|
381 | << " -- in data : " << std::hex << p_ring_in.rsp_data |
---|
382 | << std::endl; |
---|
383 | } |
---|
384 | #endif |
---|
385 | |
---|
386 | if (p_ring_in.rsp_w && islocal) |
---|
387 | { |
---|
388 | |
---|
389 | rsp_fifo_put = m_rsp_fifo.wok(); |
---|
390 | rsp_fifo_data = p_ring_in.rsp_data; |
---|
391 | |
---|
392 | if (reop && m_rsp_fifo.wok()) |
---|
393 | r_ring_rsp_fsm = RSP_IDLE; |
---|
394 | else |
---|
395 | r_ring_rsp_fsm = LOCAL; |
---|
396 | |
---|
397 | } |
---|
398 | |
---|
399 | else if (p_ring_in.rsp_w && !islocal) |
---|
400 | { |
---|
401 | |
---|
402 | if (reop && p_ring_in.rsp_r) |
---|
403 | r_ring_rsp_fsm = RSP_IDLE; |
---|
404 | else |
---|
405 | r_ring_rsp_fsm = RING; |
---|
406 | } |
---|
407 | |
---|
408 | else // !p_ring_in.rsp_w |
---|
409 | { |
---|
410 | r_ring_rsp_fsm = RSP_IDLE; |
---|
411 | } |
---|
412 | } |
---|
413 | break; |
---|
414 | |
---|
415 | case LOCAL: |
---|
416 | { |
---|
417 | #ifdef I_DEBUG |
---|
418 | if(p_ring_in.rsp_w) |
---|
419 | std::cout << std::dec << sc_time_stamp() << " - " << m_name |
---|
420 | << " - r_ring_rsp_fsm = " << ring_rsp_fsm_state_str_si[r_ring_rsp_fsm] |
---|
421 | << " -- in rok : " << p_ring_in.rsp_w |
---|
422 | << " -- in wok : " << p_ring_in.rsp_r |
---|
423 | << " -- fifo wok : " << m_rsp_fifo.wok() |
---|
424 | << " -- in data : " << std::hex << p_ring_in.rsp_data |
---|
425 | << std::endl; |
---|
426 | #endif |
---|
427 | |
---|
428 | bool reop = ((p_ring_in.rsp_data >> (ring_rsp_data_size - 1)) & 0x1) == 1; |
---|
429 | |
---|
430 | if (p_ring_in.rsp_w && m_rsp_fifo.wok() && reop) |
---|
431 | { |
---|
432 | |
---|
433 | rsp_fifo_put = true; |
---|
434 | rsp_fifo_data = p_ring_in.rsp_data; |
---|
435 | r_ring_rsp_fsm = RSP_IDLE; |
---|
436 | } |
---|
437 | if (!p_ring_in.rsp_w || !m_rsp_fifo.wok() || !reop) |
---|
438 | { |
---|
439 | |
---|
440 | rsp_fifo_put = p_ring_in.rsp_w && m_rsp_fifo.wok(); |
---|
441 | rsp_fifo_data = p_ring_in.rsp_data; |
---|
442 | r_ring_rsp_fsm = LOCAL; |
---|
443 | } |
---|
444 | } |
---|
445 | break; |
---|
446 | |
---|
447 | case RING: |
---|
448 | { |
---|
449 | #ifdef I_DEBUG |
---|
450 | if(p_ring_in.rsp_w) |
---|
451 | std::cout << std::dec << sc_time_stamp() << " - " << m_name |
---|
452 | << " - r_ring_rsp_fsm = " << ring_rsp_fsm_state_str_si[r_ring_rsp_fsm] |
---|
453 | << " -- in rok : " << p_ring_in.rsp_w |
---|
454 | << " -- in wok : " << p_ring_in.rsp_r |
---|
455 | << " -- fifo wok : " << m_rsp_fifo.wok() |
---|
456 | << " -- in data : " << std::hex << p_ring_in.rsp_data |
---|
457 | << std::endl; |
---|
458 | #endif |
---|
459 | bool reop = ((p_ring_in.rsp_data >> (ring_rsp_data_size - 1)) & 0x1) == 1; |
---|
460 | |
---|
461 | if (p_ring_in.rsp_w && reop && p_ring_in.rsp_r) |
---|
462 | { |
---|
463 | r_ring_rsp_fsm = RSP_IDLE; |
---|
464 | } |
---|
465 | else |
---|
466 | { |
---|
467 | r_ring_rsp_fsm = RING; |
---|
468 | } |
---|
469 | } |
---|
470 | break; |
---|
471 | |
---|
472 | } // end switch rsp fsm |
---|
473 | |
---|
474 | //////////////////////// |
---|
475 | // fifos update // |
---|
476 | //////////////////////// |
---|
477 | //-- to keep trace on ring traffic : a valid initiator command is being sent |
---|
478 | init_cmd.cmdval = cmd_fifo_get; |
---|
479 | init_cmd.flit = m_cmd_fifo.read(); |
---|
480 | init_cmd.state = ring_cmd_fsm_state_str_si[r_ring_cmd_fsm]; |
---|
481 | |
---|
482 | //init_cmd_val = cmd_fifo_get; |
---|
483 | init_rsp_val = rsp_fifo_put; |
---|
484 | // local cmd fifo update |
---|
485 | if ( cmd_fifo_put && cmd_fifo_get ) m_cmd_fifo.put_and_get(cmd_fifo_data); |
---|
486 | else if ( cmd_fifo_put && !cmd_fifo_get ) m_cmd_fifo.simple_put(cmd_fifo_data); |
---|
487 | else if ( !cmd_fifo_put && cmd_fifo_get ) m_cmd_fifo.simple_get(); |
---|
488 | |
---|
489 | // local rsp fifo update |
---|
490 | if ( rsp_fifo_put && rsp_fifo_get ) m_rsp_fifo.put_and_get(rsp_fifo_data); |
---|
491 | else if ( rsp_fifo_put && !rsp_fifo_get ) m_rsp_fifo.simple_put(rsp_fifo_data); |
---|
492 | else if ( !rsp_fifo_put && rsp_fifo_get ) m_rsp_fifo.simple_get(); |
---|
493 | |
---|
494 | } // end Transition() |
---|
495 | |
---|
496 | /////////////////////////////////////////////////////////////////// |
---|
497 | void genMoore(cmd_in_t &p_cmd_in, rsp_out_t &p_rsp_out) |
---|
498 | /////////////////////////////////////////////////////////////////// |
---|
499 | { |
---|
500 | p_rsp_out.write = m_rsp_fifo.rok(); |
---|
501 | p_rsp_out.data = (sc_dt::sc_uint<ring_rsp_data_size>) m_rsp_fifo.read(); |
---|
502 | |
---|
503 | p_cmd_in.read= m_cmd_fifo.wok(); |
---|
504 | |
---|
505 | } // end genMoore |
---|
506 | ///////////////////////////////////////////////////////////////////////////// |
---|
507 | void update_ring_signals(ring_signal_t p_ring_in, ring_signal_t &p_ring_out) |
---|
508 | //////////////////////////////////////////////////////////////////////////// |
---|
509 | { |
---|
510 | switch( r_ring_cmd_fsm ) |
---|
511 | { |
---|
512 | case CMD_IDLE: |
---|
513 | p_ring_out.cmd_grant = p_ring_in.cmd_grant && !m_cmd_fifo.rok(); |
---|
514 | |
---|
515 | p_ring_out.cmd_w = p_ring_in.cmd_w; |
---|
516 | p_ring_out.cmd_data = p_ring_in.cmd_data; |
---|
517 | break; |
---|
518 | |
---|
519 | case DEFAULT: |
---|
520 | { |
---|
521 | bool eop = ((int) ((m_cmd_fifo.read() >> (ring_cmd_data_size - 1) ) & 0x1) == 1); |
---|
522 | bool brdcst = (m_cmd_fifo.read() & 0x1 == 0x1); |
---|
523 | |
---|
524 | p_ring_out.cmd_grant = (!m_cmd_fifo.rok() || (eop && p_ring_in.cmd_r)) ; |
---|
525 | |
---|
526 | p_ring_out.cmd_w = m_cmd_fifo.rok() && !brdcst; |
---|
527 | p_ring_out.cmd_data = m_cmd_fifo.read(); |
---|
528 | } |
---|
529 | break; |
---|
530 | |
---|
531 | case BDC_FIRST: |
---|
532 | p_ring_out.cmd_grant = false; |
---|
533 | p_ring_out.cmd_w = true; |
---|
534 | p_ring_out.cmd_data = r_brdcst_save | ((((uint64_t) r_cpt_tgt.read()) & 0xF) << 0x1); |
---|
535 | break; |
---|
536 | |
---|
537 | case BDC_SECOND: |
---|
538 | p_ring_out.cmd_grant = m_cmd_fifo.rok() && p_ring_in.cmd_r && (r_cpt_tgt.read() == m_nb_target - 1); |
---|
539 | p_ring_out.cmd_w = m_cmd_fifo.rok(); |
---|
540 | p_ring_out.cmd_data = m_cmd_fifo.read(); |
---|
541 | |
---|
542 | break; |
---|
543 | |
---|
544 | case KEEP: |
---|
545 | { |
---|
546 | int cmd_fifo_eop = (int) ((m_cmd_fifo.read() >> (ring_cmd_data_size - 1)) & 0x1) ; //39 |
---|
547 | p_ring_out.cmd_grant = m_cmd_fifo.rok() && p_ring_in.cmd_r && (cmd_fifo_eop == 1); |
---|
548 | |
---|
549 | p_ring_out.cmd_w = m_cmd_fifo.rok(); |
---|
550 | p_ring_out.cmd_data = m_cmd_fifo.read(); |
---|
551 | } |
---|
552 | break; |
---|
553 | |
---|
554 | } // end switch |
---|
555 | |
---|
556 | p_ring_out.cmd_r = p_ring_in.cmd_r; |
---|
557 | |
---|
558 | p_ring_out.rsp_grant = p_ring_in.rsp_grant; |
---|
559 | p_ring_out.rsp_w = p_ring_in.rsp_w; |
---|
560 | p_ring_out.rsp_data = p_ring_in.rsp_data; |
---|
561 | |
---|
562 | switch( r_ring_rsp_fsm ) |
---|
563 | { |
---|
564 | case RSP_IDLE: |
---|
565 | { |
---|
566 | |
---|
567 | //uint32_t rsrcid = (uint32_t) ((sc_dt::sc_uint<vci_param::S>) ((p_ring_in.rsp_data >> (ring_rsp_data_size-m_x_width-m_y_width - 1)) << (vci_param::S-m_x_width-m_y_width))); |
---|
568 | bool islocal = true; //m_lt[rsrcid] && (m_rt[rsrcid] == m_srcid); |
---|
569 | |
---|
570 | if(p_ring_in.rsp_w && islocal) |
---|
571 | p_ring_out.rsp_r = m_rsp_fifo.wok(); |
---|
572 | else |
---|
573 | p_ring_out.rsp_r = p_ring_in.rsp_r; |
---|
574 | } |
---|
575 | break; |
---|
576 | |
---|
577 | case LOCAL: |
---|
578 | p_ring_out.rsp_r = m_rsp_fifo.wok(); |
---|
579 | break; |
---|
580 | |
---|
581 | case RING: |
---|
582 | p_ring_out.rsp_r = p_ring_in.rsp_r; |
---|
583 | break; |
---|
584 | } // end switch |
---|
585 | |
---|
586 | |
---|
587 | } // end update_ring_signals |
---|
588 | |
---|
589 | }; |
---|
590 | |
---|
591 | }} // end namespace |
---|
592 | #endif // SOCLIB_CABA_DSPIN_SIMPLE_RING_INITIATOR_FAST_C_H |
---|
593 | |
---|
594 | |
---|