request.hh (10568:e70523bd0d26) request.hh (10653:e3fc6bc7f97e)
1/*
2 * Copyright (c) 2012-2013 ARM Limited
3 * All rights reserved
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software

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193 static const PrivateFlagsType VALID_EXTRA_DATA = 0x00000080;
194
195 /** These flags are *not* cleared when a Request object is reused
196 (assigned a new address). */
197 static const PrivateFlagsType STICKY_PRIVATE_FLAGS =
198 VALID_CONTEXT_ID | VALID_THREAD_ID;
199
200 private:
1/*
2 * Copyright (c) 2012-2013 ARM Limited
3 * All rights reserved
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software

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193 static const PrivateFlagsType VALID_EXTRA_DATA = 0x00000080;
194
195 /** These flags are *not* cleared when a Request object is reused
196 (assigned a new address). */
197 static const PrivateFlagsType STICKY_PRIVATE_FLAGS =
198 VALID_CONTEXT_ID | VALID_THREAD_ID;
199
200 private:
201
201 /**
202 /**
203 * Set up a physical (e.g. device) request in a previously
204 * allocated Request object.
205 */
206 void
207 setPhys(Addr paddr, unsigned size, Flags flags, MasterID mid, Tick time)
208 {
209 assert(size >= 0);
210 _paddr = paddr;
211 _size = size;
212 _time = time;
213 _masterId = mid;
214 _flags.clear(~STICKY_FLAGS);
215 _flags.set(flags);
216 privateFlags.clear(~STICKY_PRIVATE_FLAGS);
217 privateFlags.set(VALID_PADDR|VALID_SIZE);
218 depth = 0;
219 accessDelta = 0;
220 //translateDelta = 0;
221 }
222
223 /**
202 * The physical address of the request. Valid only if validPaddr
203 * is set.
204 */
205 Addr _paddr;
206
207 /**
208 * The size of the request. This field must be set when vaddr or
209 * paddr is written via setVirt() or setPhys(), so it is always
210 * valid as long as one of the address fields is valid.
211 */
224 * The physical address of the request. Valid only if validPaddr
225 * is set.
226 */
227 Addr _paddr;
228
229 /**
230 * The size of the request. This field must be set when vaddr or
231 * paddr is written via setVirt() or setPhys(), so it is always
232 * valid as long as one of the address fields is valid.
233 */
212 int _size;
234 unsigned _size;
213
214 /** The requestor ID which is unique in the system for all ports
215 * that are capable of issuing a transaction
216 */
217 MasterID _masterId;
218
219 /** Flag structure for the request. */
220 Flags _flags;

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249 int _contextId;
250 /** The thread ID (id within this CPU) */
251 int _threadId;
252
253 /** program counter of initiating access; for tracing/debugging */
254 Addr _pc;
255
256 public:
235
236 /** The requestor ID which is unique in the system for all ports
237 * that are capable of issuing a transaction
238 */
239 MasterID _masterId;
240
241 /** Flag structure for the request. */
242 Flags _flags;

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271 int _contextId;
272 /** The thread ID (id within this CPU) */
273 int _threadId;
274
275 /** program counter of initiating access; for tracing/debugging */
276 Addr _pc;
277
278 public:
257 /** Minimal constructor. No fields are initialized.
258 * (Note that _flags and privateFlags are cleared by Flags
259 * default constructor.)
279
280 /**
281 * Minimal constructor. No fields are initialized. (Note that
282 * _flags and privateFlags are cleared by Flags default
283 * constructor.)
260 */
261 Request()
262 : _paddr(0), _size(0), _masterId(invldMasterId), _time(0),
263 _taskId(ContextSwitchTaskId::Unknown), _asid(0), _vaddr(0),
264 _extraData(0), _contextId(0), _threadId(0), _pc(0),
265 translateDelta(0), accessDelta(0), depth(0)
266 {}
267
268 /**
269 * Constructor for physical (e.g. device) requests. Initializes
270 * just physical address, size, flags, and timestamp (to curTick()).
284 */
285 Request()
286 : _paddr(0), _size(0), _masterId(invldMasterId), _time(0),
287 _taskId(ContextSwitchTaskId::Unknown), _asid(0), _vaddr(0),
288 _extraData(0), _contextId(0), _threadId(0), _pc(0),
289 translateDelta(0), accessDelta(0), depth(0)
290 {}
291
292 /**
293 * Constructor for physical (e.g. device) requests. Initializes
294 * just physical address, size, flags, and timestamp (to curTick()).
271 * These fields are adequate to perform a request.
295 * These fields are adequate to perform a request.
272 */
296 */
273 Request(Addr paddr, int size, Flags flags, MasterID mid)
297 Request(Addr paddr, unsigned size, Flags flags, MasterID mid)
274 : _paddr(0), _size(0), _masterId(invldMasterId), _time(0),
275 _taskId(ContextSwitchTaskId::Unknown), _asid(0), _vaddr(0),
276 _extraData(0), _contextId(0), _threadId(0), _pc(0),
277 translateDelta(0), accessDelta(0), depth(0)
278 {
298 : _paddr(0), _size(0), _masterId(invldMasterId), _time(0),
299 _taskId(ContextSwitchTaskId::Unknown), _asid(0), _vaddr(0),
300 _extraData(0), _contextId(0), _threadId(0), _pc(0),
301 translateDelta(0), accessDelta(0), depth(0)
302 {
279 setPhys(paddr, size, flags, mid);
303 setPhys(paddr, size, flags, mid, curTick());
280 }
281
304 }
305
282 Request(Addr paddr, int size, Flags flags, MasterID mid, Tick time)
306 Request(Addr paddr, unsigned size, Flags flags, MasterID mid, Tick time)
283 : _paddr(0), _size(0), _masterId(invldMasterId), _time(0),
284 _taskId(ContextSwitchTaskId::Unknown), _asid(0), _vaddr(0),
285 _extraData(0), _contextId(0), _threadId(0), _pc(0),
286 translateDelta(0), accessDelta(0), depth(0)
287 {
288 setPhys(paddr, size, flags, mid, time);
289 }
290
307 : _paddr(0), _size(0), _masterId(invldMasterId), _time(0),
308 _taskId(ContextSwitchTaskId::Unknown), _asid(0), _vaddr(0),
309 _extraData(0), _contextId(0), _threadId(0), _pc(0),
310 translateDelta(0), accessDelta(0), depth(0)
311 {
312 setPhys(paddr, size, flags, mid, time);
313 }
314
291 Request(Addr paddr, int size, Flags flags, MasterID mid, Tick time, Addr pc)
315 Request(Addr paddr, unsigned size, Flags flags, MasterID mid, Tick time,
316 Addr pc)
292 : _paddr(0), _size(0), _masterId(invldMasterId), _time(0),
293 _taskId(ContextSwitchTaskId::Unknown), _asid(0), _vaddr(0),
294 _extraData(0), _contextId(0), _threadId(0), _pc(0),
295 translateDelta(0), accessDelta(0), depth(0)
296 {
297 setPhys(paddr, size, flags, mid, time);
298 privateFlags.set(VALID_PC);
299 _pc = pc;
300 }
301
317 : _paddr(0), _size(0), _masterId(invldMasterId), _time(0),
318 _taskId(ContextSwitchTaskId::Unknown), _asid(0), _vaddr(0),
319 _extraData(0), _contextId(0), _threadId(0), _pc(0),
320 translateDelta(0), accessDelta(0), depth(0)
321 {
322 setPhys(paddr, size, flags, mid, time);
323 privateFlags.set(VALID_PC);
324 _pc = pc;
325 }
326
302 Request(int asid, Addr vaddr, int size, Flags flags, MasterID mid, Addr pc,
327 Request(int asid, Addr vaddr, unsigned size, Flags flags, MasterID mid,
328 Addr pc,
303 int cid, ThreadID tid)
304 : _paddr(0), _size(0), _masterId(invldMasterId), _time(0),
305 _taskId(ContextSwitchTaskId::Unknown), _asid(0), _vaddr(0),
306 _extraData(0), _contextId(0), _threadId(0), _pc(0),
307 translateDelta(0), accessDelta(0), depth(0)
308 {
309 setVirt(asid, vaddr, size, flags, mid, pc);
310 setThreadContext(cid, tid);

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319 setThreadContext(int context_id, ThreadID tid)
320 {
321 _contextId = context_id;
322 _threadId = tid;
323 privateFlags.set(VALID_CONTEXT_ID|VALID_THREAD_ID);
324 }
325
326 /**
329 int cid, ThreadID tid)
330 : _paddr(0), _size(0), _masterId(invldMasterId), _time(0),
331 _taskId(ContextSwitchTaskId::Unknown), _asid(0), _vaddr(0),
332 _extraData(0), _contextId(0), _threadId(0), _pc(0),
333 translateDelta(0), accessDelta(0), depth(0)
334 {
335 setVirt(asid, vaddr, size, flags, mid, pc);
336 setThreadContext(cid, tid);

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345 setThreadContext(int context_id, ThreadID tid)
346 {
347 _contextId = context_id;
348 _threadId = tid;
349 privateFlags.set(VALID_CONTEXT_ID|VALID_THREAD_ID);
350 }
351
352 /**
327 * Set up a physical (e.g. device) request in a previously
328 * allocated Request object.
329 */
330 void
331 setPhys(Addr paddr, int size, Flags flags, MasterID mid, Tick time)
332 {
333 assert(size >= 0);
334 _paddr = paddr;
335 _size = size;
336 _time = time;
337 _masterId = mid;
338 _flags.clear(~STICKY_FLAGS);
339 _flags.set(flags);
340 privateFlags.clear(~STICKY_PRIVATE_FLAGS);
341 privateFlags.set(VALID_PADDR|VALID_SIZE);
342 depth = 0;
343 accessDelta = 0;
344 //translateDelta = 0;
345 }
346
347 void
348 setPhys(Addr paddr, int size, Flags flags, MasterID mid)
349 {
350 setPhys(paddr, size, flags, mid, curTick());
351 }
352
353 /**
354 * Set up a virtual (e.g., CPU) request in a previously
355 * allocated Request object.
356 */
357 void
353 * Set up a virtual (e.g., CPU) request in a previously
354 * allocated Request object.
355 */
356 void
358 setVirt(int asid, Addr vaddr, int size, Flags flags, MasterID mid, Addr pc)
357 setVirt(int asid, Addr vaddr, unsigned size, Flags flags, MasterID mid,
358 Addr pc)
359 {
360 assert(size >= 0);
361 _asid = asid;
362 _vaddr = vaddr;
363 _size = size;
364 _masterId = mid;
365 _pc = pc;
366 _time = curTick();

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392 * Generate two requests as if this request had been split into two
393 * pieces. The original request can't have been translated already.
394 */
395 void splitOnVaddr(Addr split_addr, RequestPtr &req1, RequestPtr &req2)
396 {
397 assert(privateFlags.isSet(VALID_VADDR));
398 assert(privateFlags.noneSet(VALID_PADDR));
399 assert(split_addr > _vaddr && split_addr < _vaddr + _size);
359 {
360 assert(size >= 0);
361 _asid = asid;
362 _vaddr = vaddr;
363 _size = size;
364 _masterId = mid;
365 _pc = pc;
366 _time = curTick();

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392 * Generate two requests as if this request had been split into two
393 * pieces. The original request can't have been translated already.
394 */
395 void splitOnVaddr(Addr split_addr, RequestPtr &req1, RequestPtr &req2)
396 {
397 assert(privateFlags.isSet(VALID_VADDR));
398 assert(privateFlags.noneSet(VALID_PADDR));
399 assert(split_addr > _vaddr && split_addr < _vaddr + _size);
400 req1 = new Request;
401 *req1 = *this;
402 req2 = new Request;
403 *req2 = *this;
400 req1 = new Request(*this);
401 req2 = new Request(*this);
404 req1->_size = split_addr - _vaddr;
405 req2->_vaddr = split_addr;
406 req2->_size = _size - req1->_size;
407 }
408
409 /**
410 * Accessor for paddr.
411 */

--- 245 unchanged lines hidden --- 		402 req1->_size = split_addr - _vaddr;
403 req2->_vaddr = split_addr;
404 req2->_size = _size - req1->_size;
405 }
406
407 /**
408 * Accessor for paddr.
409 */

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