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source: trunk/kernel/kern/rpc.c @ 440

Last change on this file since 440 was 440, checked in by alain, 7 years ago
1/ Fix a bug in the Multithreaded "sort" applicationr: The pthread_create() arguments must be declared as global variables. 2/ The exit syscall can be called by any thread of a process..
File size: 79.8 KB

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1	/*
2	* rpc.c - RPC operations implementation.
3	*
4	* Author Alain Greiner (2016,2017,2018)
5	*
6	* Copyright (c) UPMC Sorbonne Universites
7	*
8	* This file is part of ALMOS-MKH.
9	*
10	* ALMOS-MKH is free software; you can redistribute it and/or modify it
11	* under the terms of the GNU General Public License as published by
12	* the Free Software Foundation; version 2.0 of the License.
13	*
14	* ALMOS-MKH 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	* General Public License for more details.
18	*
19	* You should have received a copy of the GNU General Public License
20	* along with ALMOS-MKH; if not, write to the Free Software Foundation,
21	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22	*/
23
24	#include <kernel_config.h>
25	#include <hal_types.h>
26	#include <hal_atomic.h>
27	#include <hal_remote.h>
28	#include <hal_irqmask.h>
29	#include <hal_special.h>
30	#include <printk.h>
31	#include <remote_sem.h>
32	#include <core.h>
33	#include <mapper.h>
34	#include <chdev.h>
35	#include <bits.h>
36	#include <thread.h>
37	#include <cluster.h>
38	#include <process.h>
39	#include <vfs.h>
40	#include <fatfs.h>
41	#include <rpc.h>
42
43
44	/////////////////////////////////////////////////////////////////////////////////////////
45	// array of function pointers (must be consistent with enum in rpc.h)
46	/////////////////////////////////////////////////////////////////////////////////////////
47
48	rpc_server_t * rpc_server[RPC_MAX_INDEX] =
49	{
50	&rpc_pmem_get_pages_server, // 0
51	&rpc_pmem_release_pages_server, // 1
52	&rpc_undefined, // 2 unused slot
53	&rpc_process_make_fork_server, // 3
54	&rpc_undefined, // 4 unused slot
55	&rpc_undefined, // 5 unused slot
56	&rpc_thread_user_create_server, // 6
57	&rpc_thread_kernel_create_server, // 7
58	&rpc_undefined, // 8 unused slot
59	&rpc_process_sigaction_server, // 9
60
61	&rpc_vfs_inode_create_server, // 10
62	&rpc_vfs_inode_destroy_server, // 11
63	&rpc_vfs_dentry_create_server, // 12
64	&rpc_vfs_dentry_destroy_server, // 13
65	&rpc_vfs_file_create_server, // 14
66	&rpc_vfs_file_destroy_server, // 15
67	&rpc_vfs_inode_load_server, // 16
68	&rpc_vfs_mapper_load_all_server, // 17
69	&rpc_fatfs_get_cluster_server, // 18
70	&rpc_undefined, // 19 unused slot
71
72	&rpc_vmm_get_vseg_server, // 20
73	&rpc_vmm_get_pte_server, // 21
74	&rpc_kcm_alloc_server, // 22
75	&rpc_kcm_free_server, // 23
76	&rpc_mapper_move_buffer_server, // 24
77	&rpc_mapper_get_page_server, // 25
78	&rpc_vmm_create_vseg_server, // 26
79	&rpc_sched_display_server, // 27
80	&rpc_vmm_set_cow_server, // 28
81	&rpc_vmm_display_server, // 29
82	};
83
84	//////////////////////////////////////////////
85	void __attribute__((noinline)) rpc_undefined()
86	{
87	assert( false , __FUNCTION__ , "called in cluster %x", local_cxy );
88	}
89
90	/***************************************************************************************/
91	/********** Generic functions supporting RPCs : client side ************************/
92	/***************************************************************************************/
93
94	///////////////////////////////////////
95	void rpc_send( cxy_t server_cxy,
96	rpc_desc_t * rpc )
97	{
98	lid_t server_core_lid;
99	lid_t client_core_lid;
100	volatile error_t full;
101	thread_t * this;
102	cluster_t * cluster;
103
104	#if DEBUG_RPC_CLIENT_GENERIC
105	uint32_t cycle = (uint32_t)hal_get_cycles();
106	if( DEBUG_RPC_CLIENT_GENERIC < cycle )
107	printk("\n[DBG] %s : thread %x in cluster %x enter for rpc[%d] / rpc_ptr %x / cycle %d\n",
108	__FUNCTION__, CURRENT_THREAD, local_cxy, rpc->index, rpc, cycle );
109	#endif
110
111	full = 0;
112	this = CURRENT_THREAD;
113	cluster = LOCAL_CLUSTER;
114	client_core_lid = this->core->lid;
115
116	// select a server_core : use client core index if possible / core 0 otherwise
117	if( client_core_lid < hal_remote_lw( XPTR( server_cxy , &cluster->cores_nr ) ) )
118	{
119	server_core_lid = client_core_lid;
120	}
121	else
122	{
123	server_core_lid = 0;
124	}
125
126	// register client_thread pointer and client_core lid in RPC descriptor
127	rpc->thread = this;
128	rpc->lid = client_core_lid;
129
130	// build extended pointer on the RPC descriptor
131	xptr_t desc_xp = XPTR( local_cxy , rpc );
132
133	// get local pointer on rpc_fifo in remote cluster,
134	remote_fifo_t * rpc_fifo = &LOCAL_CLUSTER->rpc_fifo[server_core_lid];
135
136	// post RPC in remote fifo / deschedule and retry if fifo full
137	do
138	{
139	full = remote_fifo_put_item( XPTR( server_cxy , rpc_fifo ), (uint64_t )desc_xp );
140	if ( full )
141	{
142	printk("\n[WARNING] %s : cluster %x cannot post RPC to cluster %x\n",
143	__FUNCTION__ , local_cxy , server_cxy );
144
145	// deschedule without blocking
146	sched_yield("RPC fifo full");
147	}
148	}
149	while( full );
150
151	hal_fence();
152
153	// send IPI to the selected server core
154	dev_pic_send_ipi( server_cxy , server_core_lid );
155
156	// wait RPC completion before returning if blocking RPC
157	// - busy waiting policy during kernel_init, or if threads cannot yield
158	// - block and deschedule in all other cases
159	if ( rpc->blocking )
160	{
161	if( (this->type == THREAD_IDLE) \|\| (thread_can_yield() == false) ) // busy waiting
162	{
163
164	#if DEBUG_RPC_CLIENT_GENERIC
165	cycle = (uint32_t)hal_get_cycles();
166	if( DEBUG_RPC_CLIENT_GENERIC < cycle )
167	printk("\n[DBG] %s : thread %x in cluster %x busy waiting / rpc[%d] / cycle %d\n",
168	__FUNCTION__, CURRENT_THREAD, local_cxy, rpc->index , cycle );
169	#endif
170
171	while( rpc->responses ) hal_fixed_delay( 100 );
172
173	#if DEBUG_RPC_CLIENT_GENERIC
174	cycle = (uint32_t)hal_get_cycles();
175	if( DEBUG_RPC_CLIENT_GENERIC < cycle )
176	printk("\n[DBG] %s : thread %x in cluster %x resumes / rpc[%d] / cycle %d\n",
177	__FUNCTION__, CURRENT_THREAD, local_cxy, rpc->index, cycle );
178	#endif
179	}
180	else // block & deschedule
181	{
182
183	#if DEBUG_RPC_CLIENT_GENERIC
184	cycle = (uint32_t)hal_get_cycles();
185	if( DEBUG_RPC_CLIENT_GENERIC < cycle )
186	printk("\n[DBG] %s : thread %x in cluster %x blocks & deschedules / rpc[%d] / cycle %d\n",
187	__FUNCTION__, CURRENT_THREAD, local_cxy, rpc->index , cycle );
188	#endif
189	thread_block( XPTR( local_cxy , this ) , THREAD_BLOCKED_RPC );
190	sched_yield("blocked on RPC");
191
192	#if DEBUG_RPC_CLIENT_GENERIC
193	cycle = (uint32_t)hal_get_cycles();
194	if( DEBUG_RPC_CLIENT_GENERIC < cycle )
195	printk("\n[DBG] %s : thread %x in cluster %x resumes / rpcr[%d] / cycle %d\n",
196	__FUNCTION__, CURRENT_THREAD, local_cxy, rpc->index, cycle );
197	#endif
198	}
199
200	// check response available
201	assert( (rpc->responses == 0) , __FUNCTION__, "illegal RPC response\n" );
202	}
203	else // non blocking RPC
204	{
205
206	#if DEBUG_RPC_CLIENT_GENERIC
207	cycle = (uint32_t)hal_get_cycles();
208	if( DEBUG_RPC_CLIENT_GENERIC < cycle )
209	printk("\n[DBG] %s : non blocking rpc[%d] => thread %x return / cycle %d\n",
210	__FUNCTION__, rpc->index, CURRENT_THREAD, cycle );
211	#endif
212
213	}
214	} // end rpc_send()
215
216
217	/***************************************************************************************/
218	/********** Generic functions supporting RPCs : server side ************************/
219	/***************************************************************************************/
220
221	////////////////
222	void rpc_check()
223	{
224	error_t error;
225	thread_t * thread;
226	uint32_t sr_save;
227
228	bool_t found = false;
229	thread_t * this = CURRENT_THREAD;
230	core_t * core = this->core;
231	scheduler_t * sched = &core->scheduler;
232	remote_fifo_t * rpc_fifo = &LOCAL_CLUSTER->rpc_fifo[core->lid];
233
234	#if DEBUG_RPC_SERVER_GENERIC
235	uint32_t cycle = (uint32_t)hal_get_cycles();
236	if( DEBUG_RPC_SERVER_GENERIC < cycle )
237	printk("\n[DBG] %s : thread %x interrupted in cluster %x / cycle %d\n",
238	__FUNCTION__, this, local_cxy, cycle );
239	#endif
240
241	// interrupted thread not preemptable during RPC chek
242	hal_disable_irq( &sr_save );
243
244	// activate (or create) RPC thread if RPC FIFO not empty and no acive RPC thread
245	if( (rpc_fifo->owner == 0) && (local_fifo_is_empty(rpc_fifo) == false) )
246	{
247
248	#if DEBUG_RPC_SERVER_GENERIC
249	cycle = (uint32_t)hal_get_cycles();
250	if( DEBUG_RPC_SERVER_GENERIC < cycle )
251	printk("\n[DBG] %s : RPC FIFO non empty in cluster %x / cycle %d\n",
252	__FUNCTION__, local_cxy, cycle );
253	#endif
254
255	// search one IDLE RPC thread associated to the selected core
256	list_entry_t * iter;
257	LIST_FOREACH( &sched->k_root , iter )
258	{
259	thread = LIST_ELEMENT( iter , thread_t , sched_list );
260	if( (thread->type == THREAD_RPC) && (thread->blocked == THREAD_BLOCKED_IDLE ) )
261	{
262	// unblock found RPC thread
263	thread_unblock( XPTR( local_cxy , thread ) , THREAD_BLOCKED_IDLE );
264
265	// exit loop
266	found = true;
267	break;
268	}
269	}
270
271	// create new RPC thread for the selected core if not found
272	if( found == false )
273	{
274	error = thread_kernel_create( &thread,
275	THREAD_RPC,
276	&rpc_thread_func,
277	NULL,
278	core->lid );
279
280	assert( (error == 0), __FUNCTION__ ,
281	"no memory to allocate a new RPC thread in cluster %x", local_cxy );
282
283	// unblock created RPC thread
284	thread->blocked = 0;
285
286	// update RRPC threads counter
287	hal_atomic_add( &LOCAL_CLUSTER->rpc_threads[core->lid] , 1 );
288
289	#if DEBUG_RPC_SERVER_GENERIC
290	cycle = (uint32_t)hal_get_cycles();
291	if( DEBUG_RPC_SERVER_GENERIC < cycle )
292	printk("\n[DBG] %s : create a new RPC thread %x in cluster %x / cycle %d\n",
293	__FUNCTION__, thread, local_cxy, cycle );
294	#endif
295	}
296	}
297
298	#if DEBUG_RPC_SERVER_GENERIC
299	cycle = (uint32_t)hal_get_cycles();
300	if( DEBUG_RPC_SERVER_GENERIC < cycle )
301	printk("\n[DBG] %s : interrupted thread %x deschedules in cluster %x / cycle %d\n",
302	__FUNCTION__, this, local_cxy, cycle );
303	#endif
304
305	// interrupted thread always deschedule
306	sched_yield("IPI received");
307
308	#if DEBUG_RPC_SERVER_GENERIC
309	cycle = (uint32_t)hal_get_cycles();
310	if( DEBUG_RPC_SERVER_GENERIC < cycle )
311	printk("\n[DBG] %s : interrupted thread %x resumes in cluster %x / cycle %d\n",
312	__FUNCTION__, this, local_cxy, cycle );
313	#endif
314
315	// interrupted thread restore IRQs after resume
316	hal_restore_irq( sr_save );
317
318	} // end rpc_check()
319
320
321	//////////////////////
322	void rpc_thread_func()
323	{
324	error_t empty; // local RPC fifo state
325	xptr_t desc_xp; // extended pointer on RPC request
326	cxy_t desc_cxy; // RPC request cluster (client)
327	rpc_desc_t * desc_ptr; // RPC request local pointer
328	uint32_t index; // RPC request index
329	thread_t * client_ptr; // local pointer on client thread
330	thread_t * server_ptr; // local pointer on server thread
331	xptr_t server_xp; // extended pointer on server thread
332	lid_t client_core_lid; // local index of client core
333	lid_t server_core_lid; // local index of server core
334	bool_t blocking; // blocking RPC when true
335	remote_fifo_t * rpc_fifo; // local pointer on RPC fifo
336
337	// makes RPC thread not preemptable
338	hal_disable_irq( NULL );
339
340	server_ptr = CURRENT_THREAD;
341	server_xp = XPTR( local_cxy , server_ptr );
342	server_core_lid = server_ptr->core->lid;
343	rpc_fifo = &LOCAL_CLUSTER->rpc_fifo[server_core_lid];
344
345	// two embedded loops:
346	// - external loop : "infinite" RPC thread
347	// - internal loop : handle one RPC request per iteration
348
349	while(1) // infinite loop
350	{
351	// try to take RPC_FIFO ownership
352	if( hal_atomic_test_set( &rpc_fifo->owner , server_ptr->trdid ) )
353	{
354
355	#if DEBUG_RPC_SERVER_GENERIC
356	uint32_t cycle = (uint32_t)hal_get_cycles();
357	if( DEBUG_RPC_SERVER_GENERIC < cycle )
358	printk("\n[DBG] %s : RPC thread %x in cluster %x takes RPC fifo ownership / cycle %d\n",
359	__FUNCTION__, server_ptr, local_cxy, cycle );
360	#endif
361	while( 1 ) // one RPC request per iteration
362	{
363	empty = local_fifo_get_item( rpc_fifo , (uint64_t *)&desc_xp );
364
365	// exit when FIFO empty or FIFO ownership lost (in case of descheduling)
366	if ( (empty == 0) && (rpc_fifo->owner == server_ptr->trdid) )
367	{
368	// get client cluster and pointer on RPC descriptor
369	desc_cxy = GET_CXY( desc_xp );
370	desc_ptr = GET_PTR( desc_xp );
371
372	index = hal_remote_lw( XPTR( desc_cxy , &desc_ptr->index ) );
373	blocking = hal_remote_lw( XPTR( desc_cxy , &desc_ptr->blocking ) );
374
375	#if DEBUG_RPC_SERVER_GENERIC
376	cycle = (uint32_t)hal_get_cycles();
377	if( DEBUG_RPC_SERVER_GENERIC < cycle )
378	printk("\n[DBG] %s : RPC thread %x in cluster %x got rpc[%d] / rpc_cxy %x / rpc_ptr %x\n",
379	__FUNCTION__, server_ptr, local_cxy, index, desc_cxy, desc_ptr );
380	#endif
381	// call the relevant server function
382	rpc_server[index]( desc_xp );
383
384	#if DEBUG_RPC_SERVER_GENERIC
385	cycle = (uint32_t)hal_get_cycles();
386	if( DEBUG_RPC_SERVER_GENERIC < cycle )
387	printk("\n[DBG] %s : RPC thread %x in cluster %x completes rpc[%d] / rpc_ptr %x / cycle %d\n",
388	__FUNCTION__, server_ptr, local_cxy, index, desc_ptr, cycle );
389	#endif
390	// decrement response counter in RPC descriptor if blocking
391	if( blocking )
392	{
393	// decrement responses counter in RPC descriptor
394	hal_remote_atomic_add( XPTR( desc_cxy, &desc_ptr->responses ), -1 );
395
396	// get client thread pointer and client core lid from RPC descriptor
397	client_ptr = hal_remote_lpt( XPTR( desc_cxy , &desc_ptr->thread ) );
398	client_core_lid = hal_remote_lw ( XPTR( desc_cxy , &desc_ptr->lid ) );
399
400	// unblock client thread
401	thread_unblock( XPTR( desc_cxy , client_ptr ) , THREAD_BLOCKED_RPC );
402
403	hal_fence();
404
405	#if DEBUG_RPC_SERVER_GENERIC
406	cycle = (uint32_t)hal_get_cycles();
407	if( DEBUG_RPC_SERVER_GENERIC < cycle )
408	printk("\n[DBG] %s : RPC thread %x (cluster %x) unblocked client thread %x (cluster %x)\n",
409	__FUNCTION__, server_ptr, local_cxy, client_ptr, desc_cxy, cycle );
410	#endif
411	// send IPI to client core
412	dev_pic_send_ipi( desc_cxy , client_core_lid );
413	}
414	}
415	else
416	{
417	break;
418	}
419	} // end internal loop
420
421	// release rpc_fifo ownership if not lost
422	if( rpc_fifo->owner == server_ptr->trdid ) rpc_fifo->owner = 0;
423
424	} // end if RPC fifo
425
426	// RPC thread blocks on IDLE
427	thread_block( server_xp , THREAD_BLOCKED_IDLE );
428
429	// sucide if too many RPC threads / simply deschedule otherwise
430	if( LOCAL_CLUSTER->rpc_threads[server_core_lid] >= CONFIG_RPC_THREADS_MAX )
431	{
432
433	#if DEBUG_RPC_SERVER_GENERIC
434	uint32_t cycle = (uint32_t)hal_get_cycles();
435	if( DEBUG_RPC_SERVER_GENERIC < cycle )
436	printk("\n[DBG] %s : RPC thread %x in cluster %x suicides / cycle %d\n",
437	__FUNCTION__, server_ptr, local_cxy, cycle );
438	#endif
439	// update RPC threads counter
440	hal_atomic_add( &LOCAL_CLUSTER->rpc_threads , -1 );
441
442	// RPC thread blocks on GLOBAL
443	thread_block( server_xp , THREAD_BLOCKED_GLOBAL );
444
445	// RPC thread set the REQ_DELETE flag to suicide
446	hal_remote_atomic_or( server_xp , THREAD_FLAG_REQ_DELETE );
447	}
448	else
449	{
450
451	#if DEBUG_RPC_SERVER_GENERIC
452	uint32_t cycle = (uint32_t)hal_get_cycles();
453	if( DEBUG_RPC_SERVER_GENERIC < cycle )
454	printk("\n[DBG] %s : RPC thread %x in cluster %x block & deschedules / cycle %d\n",
455	__FUNCTION__, server_ptr, local_cxy, cycle );
456	#endif
457
458	// RPC thread deschedules
459	assert( thread_can_yield( server_ptr ) , __FUNCTION__, "illegal sched_yield\n" );
460	sched_yield("RPC fifo empty");
461	}
462
463	} // end infinite loop
464
465	} // end rpc_thread_func()
466
467
468	/////////////////////////////////////////////////////////////////////////////////////////
469	// [0] Marshaling functions attached to RPC_PMEM_GET_PAGES (blocking)
470	/////////////////////////////////////////////////////////////////////////////////////////
471
472	///////////////////////////////////////////////
473	void rpc_pmem_get_pages_client( cxy_t cxy,
474	uint32_t order, // in
475	page_t ** page ) // out
476	{
477	#if DEBUG_RPC_PMEM_GET_PAGES
478	uint32_t cycle = (uint32_t)hal_get_cycles();
479	if( cycle > DEBUG_RPC_PMEM_GET_PAGES )
480	printk("\n[DBG] %s : thread %x enter on core[%x,%d] / cycle %d\n",
481	__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
482	#endif
483
484	assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
485
486	// initialise RPC descriptor header
487	rpc_desc_t rpc;
488	rpc.index = RPC_PMEM_GET_PAGES;
489	rpc.blocking = true;
490	rpc.responses = 1;
491
492	// set input arguments in RPC descriptor
493	rpc.args[0] = (uint64_t)order;
494
495	// register RPC request in remote RPC fifo
496	rpc_send( cxy , &rpc );
497
498	// get output arguments from RPC descriptor
499	page = (page_t )(intptr_t)rpc.args[1];
500
501	#if DEBUG_RPC_PMEM_GET_PAGES
502	cycle = (uint32_t)hal_get_cycles();
503	if( cycle > DEBUG_RPC_PMEM_GET_PAGES )
504	printk("\n[DBG] %s : thread %x exit / cycle %d\n",
505	__FUNCTION__ , CURRENT_THREAD , cycle );
506	#endif
507	}
508
509	///////////////////////////////////////////
510	void rpc_pmem_get_pages_server( xptr_t xp )
511	{
512	#if DEBUG_RPC_PMEM_GET_PAGES
513	uint32_t cycle = (uint32_t)hal_get_cycles();
514	if( cycle > DEBUG_RPC_PMEM_GET_PAGES )
515	printk("\n[DBG] %s : thread %x enter on core[%x,%d] / cycle %d\n",
516	__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
517	#endif
518
519	// get client cluster identifier and pointer on RPC descriptor
520	cxy_t cxy = GET_CXY( xp );
521	rpc_desc_t * desc = GET_PTR( xp );
522
523	// get input arguments from client RPC descriptor
524	uint32_t order = (uint32_t)hal_remote_lwd( XPTR( cxy , &desc->args[0] ) );
525
526	// call local pmem allocator
527	page_t * page = ppm_alloc_pages( order );
528
529	// set output arguments into client RPC descriptor
530	hal_remote_swd( XPTR( cxy , &desc->args[1] ) , (uint64_t)(intptr_t)page );
531
532	#if DEBUG_RPC_PMEM_GET_PAGES
533	cycle = (uint32_t)hal_get_cycles();
534	if( cycle > DEBUG_RPC_PMEM_GET_PAGES )
535	printk("\n[DBG] %s : thread %x exit / cycle %d\n",
536	__FUNCTION__ , CURRENT_THREAD , cycle );
537	#endif
538	}
539
540	/////////////////////////////////////////////////////////////////////////////////////////
541	// [1] Marshaling functions attached to RPC_PMEM_RELEASE_PAGES (blocking)
542	/////////////////////////////////////////////////////////////////////////////////////////
543
544	//////////////////////////////////////////////////
545	void rpc_pmem_release_pages_client( cxy_t cxy,
546	page_t * page ) // out
547	{
548	#if DEBUG_RPC_PMEM_RELEASE_PAGES
549	uint32_t cycle = (uint32_t)hal_get_cycles();
550	if( cycle > DEBUG_RPC_PMEM_RELEASE_PAGES )
551	printk("\n[DBG] %s : thread %x enter on core[%x,%d] / cycle %d\n",
552	__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
553	#endif
554
555	assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
556
557	// initialise RPC descriptor header
558	rpc_desc_t rpc;
559	rpc.index = RPC_PMEM_RELEASE_PAGES;
560	rpc.blocking = true;
561	rpc.responses = 1;
562
563	// set input arguments in RPC descriptor
564	rpc.args[0] = (uint64_t)(intptr_t)page;
565
566	// register RPC request in remote RPC fifo
567	rpc_send( cxy , &rpc );
568
569	#if DEBUG_RPC_PMEM_RELEASE_PAGES
570	cycle = (uint32_t)hal_get_cycles();
571	if( cycle > DEBUG_RPC_PMEM_RELEASE_PAGES )
572	printk("\n[DBG] %s : thread %x exit / cycle %d\n",
573	__FUNCTION__ , CURRENT_THREAD , cycle );
574	#endif
575	}
576
577	///////////////////////////////////////////////
578	void rpc_pmem_release_pages_server( xptr_t xp )
579	{
580	#if DEBUG_RPC_PMEM_RELEASE_PAGES
581	uint32_t cycle = (uint32_t)hal_get_cycles();
582	if( cycle > DEBUG_RPC_PMEM_RELEASE_PAGES )
583	printk("\n[DBG] %s : thread %x enter on core[%x,%d] / cycle %d\n",
584	__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
585	#endif
586
587	// get client cluster identifier and pointer on RPC descriptor
588	cxy_t cxy = GET_CXY( xp );
589	rpc_desc_t * desc = GET_PTR( xp );
590
591	// get input arguments from client RPC descriptor
592	page_t * page = (page_t *)(intptr_t)hal_remote_lwd( XPTR( cxy , &desc->args[0] ) );
593
594	// release memory to local pmem
595	kmem_req_t req;
596	req.type = KMEM_PAGE;
597	req.ptr = page;
598	kmem_free( &req );
599
600	#if DEBUG_RPC_PMEM_RELEASE_PAGES
601	cycle = (uint32_t)hal_get_cycles();
602	if( cycle > DEBUG_RPC_PMEM_RELEASE_PAGES )
603	printk("\n[DBG] %s : thread %x exit / cycle %d\n",
604	__FUNCTION__ , CURRENT_THREAD , cycle );
605	#endif
606	}
607
608	/////////////////////////////////////////////////////////////////////////////////////////
609	// [2] undefined slot
610	/////////////////////////////////////////////////////////////////////////////////////////
611
612	/////////////////////////////////////////////////////////////////////////////////////////
613	// [3] Marshaling functions attached to RPC_PROCESS_MAKE_FORK (blocking)
614	/////////////////////////////////////////////////////////////////////////////////////////
615
616	///////////////////////////////////////////////////
617	void rpc_process_make_fork_client( cxy_t cxy,
618	xptr_t ref_process_xp, // in
619	xptr_t parent_thread_xp, // in
620	pid_t * child_pid, // out
621	thread_t ** child_thread_ptr, // out
622	error_t * error ) // out
623	{
624	#if DEBUG_RPC_PROCESS_MAKE_FORK
625	uint32_t cycle = (uint32_t)hal_get_cycles();
626	if( cycle > DEBUG_RPC_PROCESS_MAKE_FORK )
627	printk("\n[DBG] %s : thread %x enter on core[%x,%d] / cycle %d\n",
628	__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
629	#endif
630
631	assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
632
633	// initialise RPC descriptor header
634	rpc_desc_t rpc;
635	rpc.index = RPC_PROCESS_MAKE_FORK;
636	rpc.blocking = true;
637	rpc.responses = 1;
638
639	// set input arguments in RPC descriptor
640	rpc.args[0] = (uint64_t)ref_process_xp;
641	rpc.args[1] = (uint64_t)parent_thread_xp;
642
643	// register RPC request in remote RPC fifo
644	rpc_send( cxy , &rpc );
645
646	// get output arguments from RPC descriptor
647	*child_pid = (pid_t)rpc.args[2];
648	child_thread_ptr = (thread_t )(intptr_t)rpc.args[3];
649	*error = (error_t)rpc.args[4];
650
651	#if DEBUG_RPC_PROCESS_MAKE_FORK
652	cycle = (uint32_t)hal_get_cycles();
653	if( cycle > DEBUG_RPC_PROCESS_MAKE_FORK )
654	printk("\n[DBG] %s : thread %x exit / cycle %d\n",
655	__FUNCTION__ , CURRENT_THREAD , cycle );
656	#endif
657	}
658
659	//////////////////////////////////////////////
660	void rpc_process_make_fork_server( xptr_t xp )
661	{
662	#if DEBUG_RPC_PROCESS_MAKE_FORK
663	uint32_t cycle = (uint32_t)hal_get_cycles();
664	if( cycle > DEBUG_RPC_PROCESS_MAKE_FORK )
665	printk("\n[DBG] %s : thread %x enter on core[%x,%d] / cycle %d\n",
666	__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
667	#endif
668
669	xptr_t ref_process_xp; // extended pointer on reference parent process
670	xptr_t parent_thread_xp; // extended pointer on parent thread
671	pid_t child_pid; // child process identifier
672	thread_t * child_thread_ptr; // local copy of exec_info structure
673	error_t error; // local error status
674
675	// get client cluster identifier and pointer on RPC descriptor
676	cxy_t client_cxy = GET_CXY( xp );
677	rpc_desc_t * desc = GET_PTR( xp );
678
679	// get input arguments from cient RPC descriptor
680	ref_process_xp = (xptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) );
681	parent_thread_xp = (xptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[1] ) );
682
683	// call local kernel function
684	error = process_make_fork( ref_process_xp,
685	parent_thread_xp,
686	&child_pid,
687	&child_thread_ptr );
688
689	// set output argument into client RPC descriptor
690	hal_remote_swd( XPTR( client_cxy , &desc->args[2] ) , (uint64_t)child_pid );
691	hal_remote_swd( XPTR( client_cxy , &desc->args[3] ) , (uint64_t)(intptr_t)child_thread_ptr );
692	hal_remote_swd( XPTR( client_cxy , &desc->args[4] ) , (uint64_t)error );
693
694	#if DEBUG_RPC_PROCESS_MAKE_FORK
695	cycle = (uint32_t)hal_get_cycles();
696	if( cycle > DEBUG_RPC_PROCESS_MAKE_FORK )
697	printk("\n[DBG] %s : thread %x exit / cycle %d\n",
698	__FUNCTION__ , CURRENT_THREAD , cycle );
699	#endif
700	}
701
702	/////////////////////////////////////////////////////////////////////////////////////////
703	// [4] undefined slot
704	/////////////////////////////////////////////////////////////////////////////////////////
705
706	/////////////////////////////////////////////////////////////////////////////////////////
707	// [5] undefined slot
708	/////////////////////////////////////////////////////////////////////////////////////////
709
710	/////////////////////////////////////////////////////////////////////////////////////////
711	// [6] Marshaling functions attached to RPC_THREAD_USER_CREATE (blocking)
712	/////////////////////////////////////////////////////////////////////////////////////////
713
714	/////////////////////////////////////////////////////////
715	void rpc_thread_user_create_client( cxy_t cxy,
716	pid_t pid, // in
717	void * start_func, // in
718	void * start_arg, // in
719	pthread_attr_t * attr, // in
720	xptr_t * thread_xp, // out
721	error_t * error ) // out
722	{
723	assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
724
725	// initialise RPC descriptor header
726	rpc_desc_t rpc;
727	rpc.index = RPC_THREAD_USER_CREATE;
728	rpc.blocking = true;
729	rpc.responses = 1;
730
731	// set input arguments in RPC descriptor
732	rpc.args[0] = (uint64_t)pid;
733	rpc.args[1] = (uint64_t)(intptr_t)start_func;
734	rpc.args[2] = (uint64_t)(intptr_t)start_arg;
735	rpc.args[3] = (uint64_t)(intptr_t)attr;
736
737	// register RPC request in remote RPC fifo
738	rpc_send( cxy , &rpc );
739
740	// get output arguments from RPC descriptor
741	*thread_xp = (xptr_t)rpc.args[4];
742	*error = (error_t)rpc.args[5];
743
744	}
745
746	///////////////////////////////////////////////
747	void rpc_thread_user_create_server( xptr_t xp )
748	{
749
750	pthread_attr_t * attr_ptr; // pointer on attributes structure in client cluster
751	pthread_attr_t attr_copy; // attributes structure copy in server cluster
752	thread_t * thread_ptr; // local pointer on thread descriptor
753	xptr_t thread_xp; // extended pointer on thread descriptor
754
755	pid_t pid; // process identifier
756	void * start_func;
757	void * start_arg;
758	error_t error;
759
760	// get client cluster identifier and pointer on RPC descriptor
761	cxy_t client_cxy = GET_CXY( xp );
762	rpc_desc_t * desc = GET_PTR( xp );
763
764	// get pointer on attributes structure in client cluster from RPC descriptor
765
766	// get input arguments from RPC descriptor
767	pid = (pid_t) hal_remote_lwd(XPTR(client_cxy , &desc->args[0]));
768	start_func = (void *)(intptr_t) hal_remote_lwd(XPTR(client_cxy , &desc->args[1]));
769	start_arg = (void *)(intptr_t) hal_remote_lwd(XPTR(client_cxy , &desc->args[2]));
770	attr_ptr = (pthread_attr_t *)(intptr_t)hal_remote_lwd(XPTR(client_cxy , &desc->args[3]));
771
772	// makes a local copy of attributes structure
773	hal_remote_memcpy( XPTR( local_cxy , &attr_copy ),
774	XPTR( client_cxy , attr_ptr ),
775	sizeof(pthread_attr_t) );
776
777	// call kernel function
778	error = thread_user_create( pid,
779	start_func,
780	start_arg,
781	&attr_copy,
782	&thread_ptr );
783
784	// set output arguments
785	thread_xp = XPTR( local_cxy , thread_ptr );
786	hal_remote_swd( XPTR( client_cxy , &desc->args[4] ) , (uint64_t)thread_xp );
787	hal_remote_swd( XPTR( client_cxy , &desc->args[5] ) , (uint64_t)error );
788
789	}
790
791	/////////////////////////////////////////////////////////////////////////////////////////
792	// [7] Marshaling functions attached to RPC_THREAD_KERNEL_CREATE (blocking)
793	/////////////////////////////////////////////////////////////////////////////////////////
794
795	////////////////////////////////////////////////////
796	void rpc_thread_kernel_create_client( cxy_t cxy,
797	uint32_t type, // in
798	void * func, // in
799	void * args, // in
800	xptr_t * thread_xp, // out
801	error_t * error ) // out
802	{
803	assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
804
805	// initialise RPC descriptor header
806	rpc_desc_t rpc;
807	rpc.index = RPC_THREAD_KERNEL_CREATE;
808	rpc.blocking = true;
809	rpc.responses = 1;
810
811	// set input arguments in RPC descriptor
812	rpc.args[0] = (uint64_t)type;
813	rpc.args[1] = (uint64_t)(intptr_t)func;
814	rpc.args[2] = (uint64_t)(intptr_t)args;
815
816	// register RPC request in remote RPC fifo
817	rpc_send( cxy , &rpc );
818
819	// get output arguments from RPC descriptor
820	*thread_xp = (xptr_t)rpc.args[3];
821	*error = (error_t)rpc.args[4];
822
823	}
824
825	/////////////////////////////////////////////////
826	void rpc_thread_kernel_create_server( xptr_t xp )
827	{
828	thread_t * thread_ptr; // local pointer on thread descriptor
829	xptr_t thread_xp; // extended pointer on thread descriptor
830	lid_t core_lid; // core local index
831	error_t error;
832
833	// get client cluster identifier and pointer on RPC descriptor
834	cxy_t client_cxy = GET_CXY( xp );
835	rpc_desc_t * desc = GET_PTR( xp );
836
837	// get attributes from RPC descriptor
838	uint32_t type = (uint32_t) hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) );
839	void * func = (void*)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[1] ) );
840	void * args = (void*)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[2] ) );
841
842	// select one core
843	core_lid = cluster_select_local_core();
844
845	// call local kernel function
846	error = thread_kernel_create( &thread_ptr , type , func , args , core_lid );
847
848	// set output arguments
849	thread_xp = XPTR( local_cxy , thread_ptr );
850	hal_remote_swd( XPTR( client_cxy , &desc->args[1] ) , (uint64_t)error );
851	hal_remote_swd( XPTR( client_cxy , &desc->args[2] ) , (uint64_t)thread_xp );
852
853	}
854
855	/////////////////////////////////////////////////////////////////////////////////////////
856	// [8] undefined slot
857	/////////////////////////////////////////////////////////////////////////////////////////
858
859
860	/////////////////////////////////////////////////////////////////////////////////////////
861	// [9] Marshaling functions attached to RPC_PROCESS_SIGACTION (multicast / non blocking)
862	/////////////////////////////////////////////////////////////////////////////////////////
863
864	////////////////////////////////////////////////////
865	void rpc_process_sigaction_client( cxy_t cxy,
866	rpc_desc_t * rpc )
867	{
868
869	#if DEBUG_RPC_PROCESS_SIGACTION
870	uint32_t cycle = (uint32_t)hal_get_cycles();
871	uint32_t action = rpc->args[0];
872	pid_t pid = rpc->args[1];
873	if( DEBUG_RPC_PROCESS_SIGACTION < cycle )
874	printk("\n[DBG] %s : enter to %s process %x in cluster %x / cycle %d\n",
875	__FUNCTION__ , process_action_str( action ) , pid , cxy , cycle );
876	#endif
877
878	// check some RPC arguments
879	assert( (rpc->blocking == false) , __FUNCTION__ , "must be non-blocking\n");
880	assert( (rpc->index == RPC_PROCESS_SIGACTION ) , __FUNCTION__ , "bad RPC index\n" );
881
882	// register RPC request in remote RPC fifo and return
883	rpc_send( cxy , rpc );
884
885	#if DEBUG_RPC_PROCESS_SIGACTION
886	cycle = (uint32_t)hal_get_cycles();
887	if( DEBUG_RPC_PROCESS_SIGACTION < cycle )
888	printk("\n[DBG] %s : exit after requesting to %s process %x in cluster %x / cycle %d\n",
889	__FUNCTION__ , process_action_str( action ) , pid , cxy , cycle );
890	#endif
891
892	} // end rpc_process_sigaction_client()
893
894	//////////////////////////////////////////////
895	void rpc_process_sigaction_server( xptr_t xp )
896	{
897	pid_t pid; // target process identifier
898	process_t * process; // pointer on local target process descriptor
899	uint32_t action; // sigaction index
900	thread_t * client_ptr; // pointer on client thread in client cluster
901	xptr_t client_xp; // extended pointer client thread
902	cxy_t client_cxy; // client cluster identifier
903	rpc_desc_t * rpc; // pointer on rpc descriptor in client cluster
904	xptr_t count_xp; // extended pointer on responses counter
905	uint32_t count_value; // responses counter value
906	lid_t client_lid; // client core local index
907
908	// get client cluster identifier and pointer on RPC descriptor
909	client_cxy = GET_CXY( xp );
910	rpc = GET_PTR( xp );
911
912	// get arguments from RPC descriptor
913	action = (uint32_t)hal_remote_lwd( XPTR(client_cxy , &rpc->args[0]) );
914	pid = (pid_t) hal_remote_lwd( XPTR(client_cxy , &rpc->args[1]) );
915
916	#if DEBUG_RPC_PROCESS_SIGACTION
917	uint32_t cycle = (uint32_t)hal_get_cycles();
918	if( DEBUG_RPC_PROCESS_SIGACTION < cycle )
919	printk("\n[DBG] %s : enter to %s process %x in cluster %x / cycle %d\n",
920	__FUNCTION__ , process_action_str( action ) , pid , local_cxy , cycle );
921	#endif
922
923	// get client thread pointers
924	client_ptr = (thread_t *)hal_remote_lpt( XPTR( client_cxy , &rpc->thread ) );
925	client_xp = XPTR( client_cxy , client_ptr );
926
927	// get local process descriptor
928	process = cluster_get_local_process_from_pid( pid );
929
930	// call relevant kernel function
931	if ( action == DELETE_ALL_THREADS ) process_delete_threads ( process , client_xp );
932	else if ( action == BLOCK_ALL_THREADS ) process_block_threads ( process , client_xp );
933	else if ( action == UNBLOCK_ALL_THREADS ) process_unblock_threads( process );
934
935	// build extended pointer on response counter in RPC
936	count_xp = XPTR( client_cxy , &rpc->responses );
937
938	// decrement the responses counter in RPC descriptor,
939	count_value = hal_remote_atomic_add( count_xp , -1 );
940
941	// unblock the client thread only if it is the last response.
942	if( count_value == 1 )
943	{
944	// get client core lid
945	client_lid = (lid_t) hal_remote_lw ( XPTR( client_cxy , &rpc->lid ) );
946
947	// unblock client thread
948	thread_unblock( client_xp , THREAD_BLOCKED_RPC );
949
950	// send an IPI to client core
951	dev_pic_send_ipi( client_cxy , client_lid );
952	}
953
954	#if DEBUG_RPC_PROCESS_SIGACTION
955	cycle = (uint32_t)hal_get_cycles();
956	if( DEBUG_RPC_PROCESS_SIGACTION < cycle )
957	printk("\n[DBG] %s : exit after %s process %x in cluster %x / cycle %d\n",
958	__FUNCTION__ , process_action_str( action ) , pid , local_cxy , cycle );
959	#endif
960
961	} // end rpc_process_sigaction_server()
962
963	/////////////////////////////////////////////////////////////////////////////////////////
964	// [10] Marshaling functions attached to RPC_VFS_INODE_CREATE (blocking)
965	/////////////////////////////////////////////////////////////////////////////////////////
966
967	/////////////////////////////////////////////////////
968	void rpc_vfs_inode_create_client( cxy_t cxy,
969	xptr_t dentry_xp, // in
970	uint32_t fs_type, // in
971	uint32_t inode_type, // in
972	void * extend, // in
973	uint32_t attr, // in
974	uint32_t rights, // in
975	uint32_t uid, // in
976	uint32_t gid, // in
977	xptr_t * inode_xp, // out
978	error_t * error ) // out
979	{
980	assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
981
982	// initialise RPC descriptor header
983	rpc_desc_t rpc;
984	rpc.index = RPC_VFS_INODE_CREATE;
985	rpc.blocking = true;
986	rpc.responses = 1;
987
988	// set input arguments in RPC descriptor
989	rpc.args[0] = (uint64_t)dentry_xp;
990	rpc.args[1] = (uint64_t)fs_type;
991	rpc.args[2] = (uint64_t)inode_type;
992	rpc.args[3] = (uint64_t)(intptr_t)extend;
993	rpc.args[4] = (uint64_t)attr;
994	rpc.args[5] = (uint64_t)rights;
995	rpc.args[6] = (uint64_t)uid;
996	rpc.args[7] = (uint64_t)gid;
997
998	// register RPC request in remote RPC fifo
999	rpc_send( cxy , &rpc );
1000
1001	// get output values from RPC descriptor
1002	*inode_xp = (xptr_t)rpc.args[8];
1003	*error = (error_t)rpc.args[9];
1004
1005	}
1006
1007	/////////////////////////////////////////////
1008	void rpc_vfs_inode_create_server( xptr_t xp )
1009	{
1010	xptr_t dentry_xp;
1011	uint32_t fs_type;
1012	uint32_t inode_type;
1013	void * extend;
1014	uint32_t attr;
1015	uint32_t rights;
1016	uint32_t uid;
1017	uint32_t gid;
1018	xptr_t inode_xp;
1019	error_t error;
1020
1021	// get client cluster identifier and pointer on RPC descriptor
1022	cxy_t client_cxy = GET_CXY( xp );
1023	rpc_desc_t * desc = GET_PTR( xp );
1024
1025	// get input arguments from client rpc descriptor
1026	dentry_xp = (xptr_t) hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) );
1027	fs_type = (uint32_t) hal_remote_lwd( XPTR( client_cxy , &desc->args[1] ) );
1028	inode_type = (uint32_t) hal_remote_lwd( XPTR( client_cxy , &desc->args[2] ) );
1029	extend = (void *)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[3] ) );
1030	attr = (uint32_t) hal_remote_lwd( XPTR( client_cxy , &desc->args[4] ) );
1031	rights = (uint32_t) hal_remote_lwd( XPTR( client_cxy , &desc->args[5] ) );
1032	uid = (uid_t) hal_remote_lwd( XPTR( client_cxy , &desc->args[6] ) );
1033	gid = (gid_t) hal_remote_lwd( XPTR( client_cxy , &desc->args[7] ) );
1034
1035	// call local kernel function
1036	error = vfs_inode_create( dentry_xp,
1037	fs_type,
1038	inode_type,
1039	extend,
1040	attr,
1041	rights,
1042	uid,
1043	gid,
1044	&inode_xp );
1045
1046	// set output arguments
1047	hal_remote_swd( XPTR( client_cxy , &desc->args[8] ) , (uint64_t)inode_xp );
1048	hal_remote_swd( XPTR( client_cxy , &desc->args[9] ) , (uint64_t)error );
1049
1050	}
1051
1052	/////////////////////////////////////////////////////////////////////////////////////////
1053	// [11] Marshaling functions attached to RPC_VFS_INODE_DESTROY (blocking)
1054	/////////////////////////////////////////////////////////////////////////////////////////
1055
1056	/////////////////////////////////////////////////////////////
1057	void rpc_vfs_inode_destroy_client( cxy_t cxy,
1058	struct vfs_inode_s * inode )
1059	{
1060	assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
1061
1062	// initialise RPC descriptor header
1063	rpc_desc_t rpc;
1064	rpc.index = RPC_VFS_INODE_DESTROY;
1065	rpc.blocking = true;
1066	rpc.responses = 1;
1067
1068	// set input arguments in RPC descriptor
1069	rpc.args[0] = (uint64_t)(intptr_t)inode;
1070
1071	// register RPC request in remote RPC fifo
1072	rpc_send( cxy , &rpc );
1073
1074	}
1075
1076	//////////////////////////////////////////////
1077	void rpc_vfs_inode_destroy_server( xptr_t xp )
1078	{
1079	vfs_inode_t * inode;
1080
1081	// get client cluster identifier and pointer on RPC descriptor
1082	cxy_t client_cxy = GET_CXY( xp );
1083	rpc_desc_t * desc = GET_PTR( xp );
1084
1085	// get arguments "inode" from client RPC descriptor
1086	inode = (vfs_inode_t *)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) );
1087
1088	// call local kernel function
1089	vfs_inode_destroy( inode );
1090
1091	}
1092
1093	/////////////////////////////////////////////////////////////////////////////////////////
1094	// [12] Marshaling functions attached to RPC_VFS_DENTRY_CREATE (blocking)
1095	/////////////////////////////////////////////////////////////////////////////////////////
1096
1097	//////////////////////////////////////////////////////////////
1098	void rpc_vfs_dentry_create_client( cxy_t cxy,
1099	uint32_t type, // in
1100	char * name, // in
1101	struct vfs_inode_s * parent, // in
1102	xptr_t * dentry_xp, // out
1103	error_t * error ) // out
1104	{
1105	#if DEBUG_RPC_VFS_DENTRY_CREATE
1106	uint32_t cycle = (uint32_t)hal_get_cycles();
1107	if( cycle > DEBUG_RPC_VFS_DENTRY_CREATE )
1108	printk("\n[DBG] %s : thread %x enter on core[%x,%d] / cycle %d\n",
1109	__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
1110	#endif
1111
1112	assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
1113
1114	// initialise RPC descriptor header
1115	rpc_desc_t rpc;
1116	rpc.index = RPC_VFS_DENTRY_CREATE;
1117	rpc.blocking = true;
1118	rpc.responses = 1;
1119
1120	// set input arguments in RPC descriptor
1121	rpc.args[0] = (uint64_t)type;
1122	rpc.args[1] = (uint64_t)(intptr_t)name;
1123	rpc.args[2] = (uint64_t)(intptr_t)parent;
1124
1125	// register RPC request in remote RPC fifo
1126	rpc_send( cxy , &rpc );
1127
1128	// get output values from RPC descriptor
1129	*dentry_xp = (xptr_t)rpc.args[3];
1130	*error = (error_t)rpc.args[4];
1131
1132	#if DEBUG_RPC_VFS_DENTRY_CREATE
1133	cycle = (uint32_t)hal_get_cycles();
1134	if( cycle > DEBUG_RPC_VFS_DENTRY_CREATE )
1135	printk("\n[DBG] %s : thread %x exit / cycle %d\n",
1136	__FUNCTION__ , CURRENT_THREAD , cycle );
1137	#endif
1138	}
1139
1140	//////////////////////////////////////////////
1141	void rpc_vfs_dentry_create_server( xptr_t xp )
1142	{
1143	#if DEBUG_RPC_VFS_DENTRY_CREATE
1144	uint32_t cycle = (uint32_t)hal_get_cycles();
1145	if( cycle > DEBUG_RPC_VFS_DENTRY_CREATE )
1146	printk("\n[DBG] %s : thread %x enter on core[%x,%d] / cycle %d\n",
1147	__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
1148	#endif
1149
1150	uint32_t type;
1151	char * name;
1152	vfs_inode_t * parent;
1153	xptr_t dentry_xp;
1154	error_t error;
1155	char name_copy[CONFIG_VFS_MAX_NAME_LENGTH];
1156
1157	// get client cluster identifier and pointer on RPC descriptor
1158	cxy_t client_cxy = GET_CXY( xp );
1159	rpc_desc_t * desc = GET_PTR( xp );
1160
1161	// get arguments "name", "type", and "parent" from client RPC descriptor
1162	type = (uint32_t) hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) );
1163	name = (char *)(intptr_t) hal_remote_lwd( XPTR( client_cxy , &desc->args[1] ) );
1164	parent = (vfs_inode_t *)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[2] ) );
1165
1166	// makes a local copy of name
1167	hal_remote_strcpy( XPTR( local_cxy , name_copy ),
1168	XPTR( client_cxy , name ) );
1169
1170	// call local kernel function
1171	error = vfs_dentry_create( type,
1172	name_copy,
1173	parent,
1174	&dentry_xp );
1175	// set output arguments
1176	hal_remote_swd( XPTR( client_cxy , &desc->args[3] ) , (uint64_t)dentry_xp );
1177	hal_remote_swd( XPTR( client_cxy , &desc->args[4] ) , (uint64_t)error );
1178
1179	#if DEBUG_RPC_VFS_DENTRY_CREATE
1180	cycle = (uint32_t)hal_get_cycles();
1181	if( cycle > DEBUG_RPC_VFS_DENTRY_CREATE )
1182	printk("\n[DBG] %s : thread %x exit / cycle %d\n",
1183	__FUNCTION__ , CURRENT_THREAD , cycle );
1184	#endif
1185	}
1186
1187	/////////////////////////////////////////////////////////////////////////////////////////
1188	// [13] Marshaling functions attached to RPC_VFS_DENTRY_DESTROY (blocking)
1189	/////////////////////////////////////////////////////////////////////////////////////////
1190
1191
1192	///////////////////////////////////////////////////////
1193	void rpc_vfs_dentry_destroy_client( cxy_t cxy,
1194	vfs_dentry_t * dentry )
1195	{
1196	#if DEBUG_RPC_VFS_DENTRY_DESTROY
1197	uint32_t cycle = (uint32_t)hal_get_cycles();
1198	if( cycle > DEBUG_RPC_VFS_DENTRY_DESTROY )
1199	printk("\n[DBG] %s : thread %x enter on core[%x,%d] / cycle %d\n",
1200	__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
1201	#endif
1202
1203	assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
1204
1205	// initialise RPC descriptor header
1206	rpc_desc_t rpc;
1207	rpc.index = RPC_VFS_DENTRY_DESTROY;
1208	rpc.blocking = true;
1209	rpc.responses = 1;
1210
1211	// set input arguments in RPC descriptor
1212	rpc.args[0] = (uint64_t)(intptr_t)dentry;
1213
1214	// register RPC request in remote RPC fifo
1215	rpc_send( cxy , &rpc );
1216
1217	#if DEBUG_RPC_VFS_DENTRY_DESTROY
1218	cycle = (uint32_t)hal_get_cycles();
1219	if( cycle > DEBUG_RPC_VFS_DENTRY_DESTROY )
1220	printk("\n[DBG] %s : thread %x exit / cycle %d\n",
1221	__FUNCTION__ , CURRENT_THREAD , cycle );
1222	#endif
1223	}
1224
1225	///////////////////////////////////////////////
1226	void rpc_vfs_dentry_destroy_server( xptr_t xp )
1227	{
1228	#if DEBUG_RPC_VFS_DENTRY_DESTROY
1229	uint32_t cycle = (uint32_t)hal_get_cycles();
1230	if( cycle > DEBUG_RPC_VFS_DENTRY_DESTROY )
1231	printk("\n[DBG] %s : thread %x enter on core[%x,%d] / cycle %d\n",
1232	__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
1233	#endif
1234
1235	vfs_dentry_t * dentry;
1236
1237	// get client cluster identifier and pointer on RPC descriptor
1238	cxy_t client_cxy = GET_CXY( xp );
1239	rpc_desc_t * desc = GET_PTR( xp );
1240
1241	// get arguments "dentry" from client RPC descriptor
1242	dentry = (vfs_dentry_t *)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) );
1243
1244	// call local kernel function
1245	vfs_dentry_destroy( dentry );
1246
1247	#if DEBUG_RPC_VFS_DENTRY_DESTROY
1248	cycle = (uint32_t)hal_get_cycles();
1249	if( cycle > DEBUG_RPC_VFS_DENTRY_DESTROY )
1250	printk("\n[DBG] %s : thread %x exit / cycle %d\n",
1251	__FUNCTION__ , CURRENT_THREAD , cycle );
1252	#endif
1253	}
1254
1255
1256	/////////////////////////////////////////////////////////////////////////////////////////
1257	// [14] Marshaling functions attached to RPC_VFS_FILE_CREATE (blocking)
1258	/////////////////////////////////////////////////////////////////////////////////////////
1259
1260	//////////////////////////////////////////////////////////////
1261	void rpc_vfs_file_create_client( cxy_t cxy,
1262	struct vfs_inode_s * inode, // in
1263	uint32_t file_attr, // in
1264	xptr_t * file_xp, // out
1265	error_t * error ) // out
1266	{
1267	#if DEBUG_RPC_VFS_FILE_CREATE
1268	uint32_t cycle = (uint32_t)hal_get_cycles();
1269	if( cycle > DEBUG_RPC_VFS_FILE_CREATE )
1270	printk("\n[DBG] %s : thread %x enter on core[%x,%d] / cycle %d\n",
1271	__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
1272	#endif
1273
1274	assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
1275
1276	// initialise RPC descriptor header
1277	rpc_desc_t rpc;
1278	rpc.index = RPC_VFS_FILE_CREATE;
1279	rpc.blocking = true;
1280	rpc.responses = 1;
1281
1282	// set input arguments in RPC descriptor
1283	rpc.args[0] = (uint64_t)(intptr_t)inode;
1284	rpc.args[1] = (uint64_t)file_attr;
1285
1286	// register RPC request in remote RPC fifo
1287	rpc_send( cxy , &rpc );
1288
1289	// get output values from RPC descriptor
1290	*file_xp = (xptr_t)rpc.args[2];
1291	*error = (error_t)rpc.args[3];
1292
1293	#if DEBUG_RPC_VFS_FILE_CREATE
1294	cycle = (uint32_t)hal_get_cycles();
1295	if( cycle > DEBUG_RPC_VFS_FILE_CREATE )
1296	printk("\n[DBG] %s : thread %x exit / cycle %d\n",
1297	__FUNCTION__ , CURRENT_THREAD , cycle );
1298	#endif
1299	}
1300
1301	////////////////////////////////////////////
1302	void rpc_vfs_file_create_server( xptr_t xp )
1303	{
1304	#if DEBUG_RPC_VFS_FILE_CREATE
1305	uint32_t cycle = (uint32_t)hal_get_cycles();
1306	if( cycle > DEBUG_RPC_VFS_FILE_CREATE )
1307	printk("\n[DBG] %s : thread %x enter on core[%x,%d] / cycle %d\n",
1308	__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
1309	#endif
1310
1311	uint32_t file_attr;
1312	vfs_inode_t * inode;
1313	xptr_t file_xp;
1314	error_t error;
1315
1316	// get client cluster identifier and pointer on RPC descriptor
1317	cxy_t client_cxy = GET_CXY( xp );
1318	rpc_desc_t * desc = GET_PTR( xp );
1319
1320	// get arguments "file_attr" and "inode" from client RPC descriptor
1321	inode = (vfs_inode_t *)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) );
1322	file_attr = (uint32_t) hal_remote_lwd( XPTR( client_cxy , &desc->args[1] ) );
1323
1324	// call local kernel function
1325	error = vfs_file_create( inode,
1326	file_attr,
1327	&file_xp );
1328
1329	// set output arguments
1330	hal_remote_swd( XPTR( client_cxy , &desc->args[2] ) , (uint64_t)file_xp );
1331	hal_remote_swd( XPTR( client_cxy , &desc->args[3] ) , (uint64_t)error );
1332
1333	#if DEBUG_RPC_VFS_FILE_CREATE
1334	cycle = (uint32_t)hal_get_cycles();
1335	if( cycle > DEBUG_RPC_VFS_FILE_CREATE )
1336	printk("\n[DBG] %s : thread %x exit / cycle %d\n",
1337	__FUNCTION__ , CURRENT_THREAD , cycle );
1338	#endif
1339	}
1340
1341	/////////////////////////////////////////////////////////////////////////////////////////
1342	// [15] Marshaling functions attached to RPC_VFS_FILE_DESTROY (blocking)
1343	/////////////////////////////////////////////////////////////////////////////////////////
1344
1345	///////////////////////////////////////////////////
1346	void rpc_vfs_file_destroy_client( cxy_t cxy,
1347	vfs_file_t * file )
1348	{
1349	#if DEBUG_RPC_VFS_FILE_DESTROY
1350	uint32_t cycle = (uint32_t)hal_get_cycles();
1351	if( cycle > DEBUG_RPC_VFS_FILE_DESTROY )
1352	printk("\n[DBG] %s : thread %x enter on core[%x,%d] / cycle %d\n",
1353	__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
1354	#endif
1355
1356	assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
1357
1358	// initialise RPC descriptor header
1359	rpc_desc_t rpc;
1360	rpc.index = RPC_VFS_FILE_DESTROY;
1361	rpc.blocking = true;
1362	rpc.responses = 1;
1363
1364	// set input arguments in RPC descriptor
1365	rpc.args[0] = (uint64_t)(intptr_t)file;
1366
1367	// register RPC request in remote RPC fifo
1368	rpc_send( cxy , &rpc );
1369
1370	#if DEBUG_RPC_VFS_FILE_DESTROY
1371	cycle = (uint32_t)hal_get_cycles();
1372	if( cycle > DEBUG_RPC_VFS_FILE_DESTROY )
1373	printk("\n[DBG] %s : thread %x exit / cycle %d\n",
1374	__FUNCTION__ , CURRENT_THREAD , cycle );
1375	#endif
1376	}
1377
1378	/////////////////////////////////////////////
1379	void rpc_vfs_file_destroy_server( xptr_t xp )
1380	{
1381	#if DEBUG_RPC_VFS_FILE_DESTROY
1382	uint32_t cycle = (uint32_t)hal_get_cycles();
1383	if( cycle > DEBUG_RPC_VFS_FILE_DESTROY )
1384	printk("\n[DBG] %s : thread %x enter on core[%x,%d] / cycle %d\n",
1385	__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
1386	#endif
1387
1388	vfs_file_t * file;
1389
1390	// get client cluster identifier and pointer on RPC descriptor
1391	cxy_t client_cxy = GET_CXY( xp );
1392	rpc_desc_t * desc = GET_PTR( xp );
1393
1394	// get arguments "dentry" from client RPC descriptor
1395	file = (vfs_file_t *)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) );
1396
1397	// call local kernel function
1398	vfs_file_destroy( file );
1399
1400	#if DEBUG_RPC_VFS_FILE_DESTROY
1401	cycle = (uint32_t)hal_get_cycles();
1402	if( cycle > DEBUG_RPC_VFS_FILE_DESTROY )
1403	printk("\n[DBG] %s : thread %x exit / cycle %d\n",
1404	__FUNCTION__ , CURRENT_THREAD , cycle );
1405	#endif
1406	}
1407
1408	/////////////////////////////////////////////////////////////////////////////////////////
1409	// [16] Marshaling functions attached to RPC_VFS_INODE_LOAD (blocking)
1410	/////////////////////////////////////////////////////////////////////////////////////////
1411
1412	//////////////////////////////////////////////////
1413	void rpc_vfs_inode_load_client( cxy_t cxy,
1414	vfs_inode_t * parent_inode, // in
1415	char * name, // in
1416	xptr_t child_inode_xp, // in
1417	error_t * error ) // out
1418	{
1419	assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
1420
1421	// initialise RPC descriptor header
1422	rpc_desc_t rpc;
1423	rpc.index = RPC_VFS_INODE_LOAD;
1424	rpc.blocking = true;
1425	rpc.responses = 1;
1426
1427	// set input arguments in RPC descriptor
1428	rpc.args[0] = (uint64_t)(intptr_t)parent_inode;
1429	rpc.args[1] = (uint64_t)(intptr_t)name;
1430	rpc.args[2] = (uint64_t)child_inode_xp;
1431
1432	// register RPC request in remote RPC fifo
1433	rpc_send( cxy , &rpc );
1434
1435	// get output values from RPC descriptor
1436	*error = (error_t)rpc.args[3];
1437
1438	}
1439
1440	///////////////////////////////////////////
1441	void rpc_vfs_inode_load_server( xptr_t xp )
1442	{
1443	error_t error;
1444	vfs_inode_t * parent;
1445	xptr_t child_xp;
1446	char * name;
1447
1448	char name_copy[CONFIG_VFS_MAX_NAME_LENGTH];
1449
1450	// get client cluster identifier and pointer on RPC descriptor
1451	cxy_t client_cxy = GET_CXY( xp );
1452	rpc_desc_t * desc = GET_PTR( xp );
1453
1454	// get arguments "parent", "name", and "child_xp"
1455	parent = (vfs_inode_t*)(intptr_t)hal_remote_lwd(XPTR(client_cxy , &desc->args[0]));
1456	name = (char*)(intptr_t) hal_remote_lwd(XPTR(client_cxy , &desc->args[1]));
1457	child_xp = (xptr_t) hal_remote_lwd(XPTR(client_cxy , &desc->args[2]));
1458
1459	// get name local copy
1460	hal_remote_strcpy( XPTR( local_cxy , name_copy ) ,
1461	XPTR( client_cxy , name ) );
1462
1463	// call the kernel function
1464	error = vfs_inode_load( parent , name_copy , child_xp );
1465
1466	// set output argument
1467	hal_remote_swd( XPTR( client_cxy , &desc->args[3] ) , (uint64_t)error );
1468
1469	}
1470
1471	/////////////////////////////////////////////////////////////////////////////////////////
1472	// [17] Marshaling functions attached to RPC_VFS_MAPPER_LOAD_ALL (blocking)
1473	/////////////////////////////////////////////////////////////////////////////////////////
1474
1475	///////////////////////////////////////////////////////
1476	void rpc_vfs_mapper_load_all_client( cxy_t cxy,
1477	vfs_inode_t * inode, // in
1478	error_t * error ) // out
1479	{
1480	assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
1481
1482	// initialise RPC descriptor header
1483	rpc_desc_t rpc;
1484	rpc.index = RPC_VFS_MAPPER_LOAD_ALL;
1485	rpc.blocking = true;
1486	rpc.responses = 1;
1487
1488	// set input arguments in RPC descriptor
1489	rpc.args[0] = (uint64_t)(intptr_t)inode;
1490
1491	// register RPC request in remote RPC fifo
1492	rpc_send( cxy , &rpc );
1493
1494	// get output values from RPC descriptor
1495	*error = (error_t)rpc.args[1];
1496
1497	}
1498
1499	////////////////////////////////////////////////
1500	void rpc_vfs_mapper_load_all_server( xptr_t xp )
1501	{
1502	error_t error;
1503	vfs_inode_t * inode;
1504
1505	// get client cluster identifier and pointer on RPC descriptor
1506	cxy_t client_cxy = GET_CXY( xp );
1507	rpc_desc_t * desc = GET_PTR( xp );
1508
1509	// get arguments "parent", "name", and "child_xp"
1510	inode = (vfs_inode_t*)(intptr_t)hal_remote_lwd(XPTR(client_cxy , &desc->args[0]));
1511
1512	// call the kernel function
1513	error = vfs_mapper_load_all( inode );
1514
1515	// set output argument
1516	hal_remote_swd( XPTR( client_cxy , &desc->args[1] ) , (uint64_t)error );
1517
1518	}
1519
1520	/////////////////////////////////////////////////////////////////////////////////////////
1521	// [18] Marshaling functions attached to RPC_FATFS_GET_CLUSTER (blocking)
1522	/////////////////////////////////////////////////////////////////////////////////////////
1523
1524	//////////////////////////////////////////////////
1525	void rpc_fatfs_get_cluster_client( cxy_t cxy,
1526	mapper_t * mapper, // in
1527	uint32_t first, // in
1528	uint32_t index, // in
1529	uint32_t * cluster, // out
1530	error_t * error ) // out
1531	{
1532	assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
1533
1534	// initialise RPC descriptor header
1535	rpc_desc_t rpc;
1536	rpc.index = RPC_FATFS_GET_CLUSTER;
1537	rpc.blocking = true;
1538	rpc.responses = 1;
1539
1540	// set input arguments in RPC descriptor
1541	rpc.args[0] = (uint64_t)(intptr_t)mapper;
1542	rpc.args[1] = (uint64_t)first;
1543	rpc.args[2] = (uint64_t)index;
1544
1545	// register RPC request in remote RPC fifo
1546	rpc_send( cxy , &rpc );
1547
1548	// get output argument from rpc descriptor
1549	*cluster = (uint32_t)rpc.args[3];
1550	*error = (error_t)rpc.args[4];
1551
1552	}
1553
1554	//////////////////////////////////////////////
1555	void rpc_fatfs_get_cluster_server( xptr_t xp )
1556	{
1557	mapper_t * mapper;
1558	uint32_t first;
1559	uint32_t index;
1560	uint32_t cluster;
1561	error_t error;
1562
1563	// get client cluster identifier and pointer on RPC descriptor
1564	cxy_t client_cxy = GET_CXY( xp );
1565	rpc_desc_t * desc = GET_PTR( xp );
1566
1567	// get input arguments
1568	mapper = (mapper_t *)(intptr_t)hal_remote_lpt( XPTR( client_cxy , &desc->args[0] ) );
1569	first = (uint32_t) hal_remote_lw ( XPTR( client_cxy , &desc->args[1] ) );
1570	index = (uint32_t) hal_remote_lw ( XPTR( client_cxy , &desc->args[2] ) );
1571
1572	// call the kernel function
1573	error = fatfs_get_cluster( mapper , first , index , &cluster );
1574
1575	// set output argument
1576	hal_remote_swd( XPTR( client_cxy , &desc->args[3] ) , (uint64_t)cluster );
1577	hal_remote_swd( XPTR( client_cxy , &desc->args[4] ) , (uint64_t)error );
1578
1579	}
1580
1581	/////////////////////////////////////////////////////////////////////////////////////////
1582	// [20] Marshaling functions attached to RPC_VMM_GET_VSEG (blocking)
1583	/////////////////////////////////////////////////////////////////////////////////////////
1584
1585	//////////////////////////////////////////////////
1586	void rpc_vmm_get_vseg_client( cxy_t cxy,
1587	process_t * process, // in
1588	intptr_t vaddr, // in
1589	xptr_t * vseg_xp, // out
1590	error_t * error ) // out
1591	{
1592	#if DEBUG_RPC_VMM_GET_VSEG
1593	uint32_t cycle = (uint32_t)hal_get_cycles();
1594	if( cycle > DEBUG_RPC_VMM_GET_VSEG )
1595	printk("\n[DBG] %s : thread %x enter on core[%x,%d] / cycle %d\n",
1596	__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
1597	#endif
1598
1599	assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
1600
1601	// initialise RPC descriptor header
1602	rpc_desc_t rpc;
1603	rpc.index = RPC_VMM_GET_VSEG;
1604	rpc.blocking = true;
1605	rpc.responses = 1;
1606
1607	// set input arguments in RPC descriptor
1608	rpc.args[0] = (uint64_t)(intptr_t)process;
1609	rpc.args[1] = (uint64_t)vaddr;
1610
1611	// register RPC request in remote RPC fifo
1612	rpc_send( cxy , &rpc );
1613
1614	// get output argument from rpc descriptor
1615	*vseg_xp = rpc.args[2];
1616	*error = (error_t)rpc.args[3];
1617
1618	#if DEBUG_RPC_VMM_GET_VSEG
1619	cycle = (uint32_t)hal_get_cycles();
1620	if( cycle > DEBUG_RPC_VMM_GET_VSEG )
1621	printk("\n[DBG] %s : thread %x exit on core[%x,%d] / cycle %d\n",
1622	__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
1623	#endif
1624	}
1625
1626	/////////////////////////////////////////
1627	void rpc_vmm_get_vseg_server( xptr_t xp )
1628	{
1629	#if DEBUG_RPC_VMM_GET_VSEG
1630	uint32_t cycle = (uint32_t)hal_get_cycles();
1631	if( cycle > DEBUG_RPC_VMM_GET_VSEG )
1632	printk("\n[DBG] %s : thread %x enter on core[%x,%d] / cycle %d\n",
1633	__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
1634	#endif
1635
1636	process_t * process;
1637	intptr_t vaddr;
1638	vseg_t * vseg_ptr;
1639	xptr_t vseg_xp;
1640	error_t error;
1641
1642	// get client cluster identifier and pointer on RPC descriptor
1643	cxy_t client_cxy = GET_CXY( xp );
1644	rpc_desc_t * desc = GET_PTR( xp );
1645
1646	// get input argument from client RPC descriptor
1647	process = (process_t *)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) );
1648	vaddr = (intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[1] ) );
1649
1650	// call local kernel function
1651	error = vmm_get_vseg( process , vaddr , &vseg_ptr );
1652
1653	// set output arguments to client RPC descriptor
1654	vseg_xp = XPTR( local_cxy , vseg_ptr );
1655	hal_remote_swd( XPTR( client_cxy , &desc->args[2] ) , (uint64_t)vseg_xp );
1656	hal_remote_swd( XPTR( client_cxy , &desc->args[3] ) , (uint64_t)error );
1657
1658	#if DEBUG_RPC_VMM_GET_VSEG
1659	cycle = (uint32_t)hal_get_cycles();
1660	if( cycle > DEBUG_RPC_VMM_GET_VSEG )
1661	printk("\n[DBG] %s : thread %x exit on core[%x,%d] / cycle %d\n",
1662	__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
1663	#endif
1664	}
1665
1666
1667	/////////////////////////////////////////////////////////////////////////////////////////
1668	// [21] Marshaling functions attached to RPC_VMM_GET_VSEG (blocking)
1669	/////////////////////////////////////////////////////////////////////////////////////////
1670
1671	////////////////////////////////////////////
1672	void rpc_vmm_get_pte_client( cxy_t cxy,
1673	process_t * process, // in
1674	vpn_t vpn, // in
1675	bool_t cow, // in
1676	uint32_t * attr, // out
1677	ppn_t * ppn, // out
1678	error_t * error ) // out
1679	{
1680	#if DEBUG_RPC_VMM_GET_PTE
1681	uint32_t cycle = (uint32_t)hal_get_cycles();
1682	if( cycle > DEBUG_RPC_VMM_GET_PTE )
1683	printk("\n[DBG] %s : thread %x enter on core[%x,%d] / cycle %d\n",
1684	__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
1685	#endif
1686
1687	assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
1688
1689	// initialise RPC descriptor header
1690	rpc_desc_t rpc;
1691	rpc.index = RPC_VMM_GET_VSEG;
1692	rpc.blocking = true;
1693	rpc.responses = 1;
1694
1695	// set input arguments in RPC descriptor
1696	rpc.args[0] = (uint64_t)(intptr_t)process;
1697	rpc.args[1] = (uint64_t)vpn;
1698	rpc.args[2] = (uint64_t)cow;
1699
1700	// register RPC request in remote RPC fifo
1701	rpc_send( cxy , &rpc );
1702
1703	// get output argument from rpc descriptor
1704	*attr = (uint32_t)rpc.args[3];
1705	*ppn = (ppn_t)rpc.args[4];
1706	*error = (error_t)rpc.args[5];
1707
1708	#if DEBUG_RPC_VMM_GET_PTE
1709	cycle = (uint32_t)hal_get_cycles();
1710	if( cycle > DEBUG_RPC_VMM_GET_PTE )
1711	printk("\n[DBG] %s : thread %x exit on core[%x,%d] / cycle %d\n",
1712	__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
1713	#endif
1714	}
1715
1716	////////////////////////////////////////
1717	void rpc_vmm_get_pte_server( xptr_t xp )
1718	{
1719	#if DEBUG_RPC_VMM_GET_PTE
1720	uint32_t cycle = (uint32_t)hal_get_cycles();
1721	if( cycle > DEBUG_RPC_VMM_GET_PTE )
1722	printk("\n[DBG] %s : thread %x enter on core[%x,%d] / cycle %d\n",
1723	__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
1724	#endif
1725
1726	process_t * process;
1727	vpn_t vpn;
1728	bool_t cow;
1729	uint32_t attr;
1730	ppn_t ppn;
1731	error_t error;
1732
1733	// get client cluster identifier and pointer on RPC descriptor
1734	cxy_t client_cxy = GET_CXY( xp );
1735	rpc_desc_t * desc = GET_PTR( xp );
1736
1737	// get input argument "process" & "vpn" from client RPC descriptor
1738	process = (process_t *)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) );
1739	vpn = (vpn_t) hal_remote_lwd( XPTR( client_cxy , &desc->args[1] ) );
1740	cow = (bool_t) hal_remote_lwd( XPTR( client_cxy , &desc->args[2] ) );
1741
1742	// call local kernel function
1743	error = vmm_get_pte( process , vpn , cow , &attr , &ppn );
1744
1745	// set output argument "attr" & "ppn" to client RPC descriptor
1746	hal_remote_swd( XPTR( client_cxy , &desc->args[3] ) , (uint64_t)attr );
1747	hal_remote_swd( XPTR( client_cxy , &desc->args[4] ) , (uint64_t)ppn );
1748	hal_remote_swd( XPTR( client_cxy , &desc->args[5] ) , (uint64_t)error );
1749
1750	#if DEBUG_RPC_VMM_GET_PTE
1751	cycle = (uint32_t)hal_get_cycles();
1752	if( cycle > DEBUG_RPC_VMM_GET_PTE )
1753	printk("\n[DBG] %s : thread %x exit on core[%x,%d] / cycle %d\n",
1754	__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
1755	#endif
1756	}
1757
1758	/////////////////////////////////////////////////////////////////////////////////////////
1759	// [22] Marshaling functions attached to RPC_KCM_ALLOC (blocking)
1760	/////////////////////////////////////////////////////////////////////////////////////////
1761
1762	//////////////////////////////////////////
1763	void rpc_kcm_alloc_client( cxy_t cxy,
1764	uint32_t kmem_type, // in
1765	xptr_t * buf_xp ) // out
1766	{
1767	assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
1768
1769	// initialise RPC descriptor header
1770	rpc_desc_t rpc;
1771	rpc.index = RPC_THREAD_USER_CREATE;
1772	rpc.blocking = true;
1773	rpc.responses = 1;
1774
1775	// set input arguments in RPC descriptor
1776	rpc.args[0] = (uint64_t)kmem_type;
1777
1778	// register RPC request in remote RPC fifo
1779	rpc_send( cxy , &rpc );
1780
1781	// get output arguments from RPC descriptor
1782	*buf_xp = (xptr_t)rpc.args[1];
1783
1784	}
1785
1786	//////////////////////////////////////
1787	void rpc_kcm_alloc_server( xptr_t xp )
1788	{
1789	// get client cluster identifier and pointer on RPC descriptor
1790	cxy_t client_cxy = GET_CXY( xp );
1791	rpc_desc_t * desc = GET_PTR( xp );
1792
1793	// get input argument "kmem_type" from client RPC descriptor
1794	uint32_t kmem_type = (uint32_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) );
1795
1796	// allocates memory for kcm
1797	kmem_req_t req;
1798	req.type = kmem_type;
1799	req.flags = AF_ZERO;
1800	void * buf_ptr = kmem_alloc( &req );
1801
1802	// set output argument
1803	xptr_t buf_xp = XPTR( local_cxy , buf_ptr );
1804	hal_remote_swd( XPTR( client_cxy , &desc->args[1] ) , (uint64_t)buf_xp );
1805
1806	}
1807
1808	/////////////////////////////////////////////////////////////////////////////////////////
1809	// [23] Marshaling functions attached to RPC_KCM_FREE (blocking)
1810	/////////////////////////////////////////////////////////////////////////////////////////
1811
1812	/////////////////////////////////////////
1813	void rpc_kcm_free_client( cxy_t cxy,
1814	void * buf, // in
1815	uint32_t kmem_type ) // in
1816	{
1817	assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
1818
1819	// initialise RPC descriptor header
1820	rpc_desc_t rpc;
1821	rpc.index = RPC_THREAD_USER_CREATE;
1822	rpc.blocking = true;
1823	rpc.responses = 1;
1824
1825	// set input arguments in RPC descriptor
1826	rpc.args[0] = (uint64_t)(intptr_t)buf;
1827	rpc.args[1] = (uint64_t)kmem_type;
1828
1829	// register RPC request in remote RPC fifo
1830	rpc_send( cxy , &rpc );
1831
1832	}
1833
1834	/////////////////////////////////////
1835	void rpc_kcm_free_server( xptr_t xp )
1836	{
1837	// get client cluster identifier and pointer on RPC descriptor
1838	cxy_t client_cxy = GET_CXY( xp );
1839	rpc_desc_t * desc = GET_PTR( xp );
1840
1841	// get input arguments "buf" and "kmem_type" from client RPC descriptor
1842	void * buf = (void *)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) );
1843	uint32_t kmem_type = (uint32_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[1] ) );
1844
1845	// releases memory
1846	kmem_req_t req;
1847	req.type = kmem_type;
1848	req.ptr = buf;
1849	kmem_free( &req );
1850
1851	}
1852
1853	/////////////////////////////////////////////////////////////////////////////////////////
1854	// [24] Marshaling functions attached to RPC_MAPPER_MOVE_BUFFER
1855	/////////////////////////////////////////////////////////////////////////////////////////
1856
1857	///////////////////////////////////////////////////
1858	void rpc_mapper_move_buffer_client( cxy_t cxy,
1859	mapper_t * mapper, // in
1860	bool_t to_buffer, // in
1861	bool_t is_user, // in
1862	uint32_t file_offset, // in
1863	uint64_t buffer, // in
1864	uint32_t size, // in
1865	error_t * error ) // out
1866	{
1867	assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
1868
1869	// initialise RPC descriptor header
1870	rpc_desc_t rpc;
1871	rpc.index = RPC_MAPPER_MOVE_BUFFER;
1872	rpc.blocking = true;
1873	rpc.responses = 1;
1874
1875	// set input arguments in RPC descriptor
1876	rpc.args[0] = (uint64_t)(intptr_t)mapper;
1877	rpc.args[1] = (uint64_t)to_buffer;
1878	rpc.args[2] = (uint64_t)is_user;
1879	rpc.args[3] = (uint64_t)file_offset;
1880	rpc.args[4] = (uint64_t)buffer;
1881	rpc.args[5] = (uint64_t)size;
1882
1883	// register RPC request in remote RPC fifo
1884	rpc_send( cxy , &rpc );
1885
1886	// get output values from RPC descriptor
1887	*error = (error_t)rpc.args[6];
1888
1889	}
1890
1891	///////////////////////////////////////////////
1892	void rpc_mapper_move_buffer_server( xptr_t xp )
1893	{
1894	mapper_t * mapper;
1895	bool_t to_buffer;
1896	bool_t is_user;
1897	uint32_t file_offset;
1898	void * user_buffer;
1899	xptr_t kern_buffer;
1900	uint32_t size;
1901	error_t error;
1902
1903	// get client cluster identifier and pointer on RPC descriptor
1904	cxy_t client_cxy = GET_CXY( xp );
1905	rpc_desc_t * desc = GET_PTR( xp );
1906
1907	// get arguments from client RPC descriptor
1908	mapper = (mapper_t *)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) );
1909	to_buffer = hal_remote_lwd( XPTR( client_cxy , &desc->args[1] ) );
1910	is_user = hal_remote_lwd( XPTR( client_cxy , &desc->args[2] ) );
1911	file_offset = hal_remote_lwd( XPTR( client_cxy , &desc->args[3] ) );
1912	size = hal_remote_lwd( XPTR( client_cxy , &desc->args[5] ) );
1913
1914	// call local kernel function
1915	if( is_user )
1916	{
1917	user_buffer = (void *)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[4] ) );
1918
1919	error = mapper_move_user( mapper,
1920	to_buffer,
1921	file_offset,
1922	user_buffer,
1923	size );
1924	}
1925	else
1926	{
1927	kern_buffer = (xptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[4] ) );
1928
1929	error = mapper_move_kernel( mapper,
1930	to_buffer,
1931	file_offset,
1932	kern_buffer,
1933	size );
1934	}
1935
1936	// set output argument to client RPC descriptor
1937	hal_remote_swd( XPTR( client_cxy , &desc->args[6] ) , (uint64_t)error );
1938
1939	}
1940
1941	/////////////////////////////////////////////////////////////////////////////////////////
1942	// [25] Marshaling functions attached to RPC_MAPPER_GET_PAGE (blocking)
1943	/////////////////////////////////////////////////////////////////////////////////////////
1944
1945	///////////////////////////////////////////////////////
1946	void rpc_mapper_get_page_client( cxy_t cxy,
1947	struct mapper_s * mapper, // in
1948	uint32_t index, // in
1949	page_t ** page ) // out
1950	{
1951	assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
1952
1953	// initialise RPC descriptor header
1954	rpc_desc_t rpc;
1955	rpc.index = RPC_MAPPER_GET_PAGE;
1956	rpc.blocking = true;
1957	rpc.responses = 1;
1958
1959	// set input arguments in RPC descriptor
1960	rpc.args[0] = (uint64_t)(intptr_t)mapper;
1961	rpc.args[1] = (uint64_t)index;
1962
1963	// register RPC request in remote RPC fifo
1964	rpc_send( cxy , &rpc );
1965
1966	// get output values from RPC descriptor
1967	page = (page_t )(intptr_t)rpc.args[2];
1968
1969	}
1970
1971	////////////////////////////////////////////
1972	void rpc_mapper_get_page_server( xptr_t xp )
1973	{
1974	// get client cluster identifier and pointer on RPC descriptor
1975	cxy_t cxy = GET_CXY( xp );
1976	rpc_desc_t * desc = GET_PTR( xp );
1977
1978	// get input arguments from client RPC descriptor
1979	mapper_t * mapper = (mapper_t *)(intptr_t)hal_remote_lwd( XPTR( cxy , &desc->args[0] ) );
1980	uint32_t index = (uint32_t) hal_remote_lwd( XPTR( cxy , &desc->args[1] ) );
1981
1982	// call local pmem allocator
1983	page_t * page = mapper_get_page( mapper , index );
1984
1985	// set output arguments into client RPC descriptor
1986	hal_remote_swd( XPTR( cxy , &desc->args[1] ) , (uint64_t)(intptr_t)page );
1987
1988	}
1989
1990	/////////////////////////////////////////////////////////////////////////////////////////
1991	// [26] Marshaling functions attached to RPC_VMM_CREATE_VSEG (blocking)
1992	/////////////////////////////////////////////////////////////////////////////////////////
1993
1994	////////////////////////////////////////////////////////
1995	void rpc_vmm_create_vseg_client( cxy_t cxy,
1996	struct process_s * process,
1997	vseg_type_t type,
1998	intptr_t base,
1999	uint32_t size,
2000	uint32_t file_offset,
2001	uint32_t file_size,
2002	xptr_t mapper_xp,
2003	cxy_t vseg_cxy,
2004	struct vseg_s ** vseg )
2005	{
2006	assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
2007
2008	// initialise RPC descriptor header
2009	rpc_desc_t rpc;
2010	rpc.index = RPC_VMM_CREATE_VSEG;
2011	rpc.blocking = true;
2012	rpc.responses = 1;
2013
2014	// set input arguments in RPC descriptor
2015	rpc.args[0] = (uint64_t)(intptr_t)process;
2016	rpc.args[1] = (uint64_t)type;
2017	rpc.args[2] = (uint64_t)base;
2018	rpc.args[3] = (uint64_t)size;
2019	rpc.args[4] = (uint64_t)file_offset;
2020	rpc.args[5] = (uint64_t)file_size;
2021	rpc.args[6] = (uint64_t)mapper_xp;
2022	rpc.args[7] = (uint64_t)vseg_cxy;
2023
2024	// register RPC request in remote RPC fifo
2025	rpc_send( cxy , &rpc );
2026
2027	// get output values from RPC descriptor
2028	vseg = (vseg_t )(intptr_t)rpc.args[8];
2029
2030	}
2031
2032	////////////////////////////////////////////
2033	void rpc_vmm_create_vseg_server( xptr_t xp )
2034	{
2035	// get client cluster identifier and pointer on RPC descriptor
2036	cxy_t cxy = GET_CXY( xp );
2037	rpc_desc_t * desc = GET_PTR( xp );
2038
2039	// get input arguments from client RPC descriptor
2040	process_t * process = (process_t *)(intptr_t)hal_remote_lwd( XPTR(cxy , &desc->args[0]));
2041	vseg_type_t type = (vseg_type_t)(uint32_t)hal_remote_lwd( XPTR(cxy , &desc->args[1]));
2042	intptr_t base = (intptr_t) hal_remote_lwd( XPTR(cxy , &desc->args[2]));
2043	uint32_t size = (uint32_t) hal_remote_lwd( XPTR(cxy , &desc->args[3]));
2044	uint32_t file_offset = (uint32_t) hal_remote_lwd( XPTR(cxy , &desc->args[4]));
2045	uint32_t file_size = (uint32_t) hal_remote_lwd( XPTR(cxy , &desc->args[5]));
2046	xptr_t mapper_xp = (xptr_t) hal_remote_lwd( XPTR(cxy , &desc->args[6]));
2047	cxy_t vseg_cxy = (cxy_t)(uint32_t) hal_remote_lwd( XPTR(cxy , &desc->args[7]));
2048
2049	// call local kernel function
2050	vseg_t * vseg = vmm_create_vseg( process,
2051	type,
2052	base,
2053	size,
2054	file_offset,
2055	file_size,
2056	mapper_xp,
2057	vseg_cxy );
2058
2059	// set output arguments into client RPC descriptor
2060	hal_remote_swd( XPTR( cxy , &desc->args[8] ) , (uint64_t)(intptr_t)vseg );
2061
2062	}
2063
2064	/////////////////////////////////////////////////////////////////////////////////////////
2065	// [27] Marshaling functions attached to RPC_SCHED_DISPLAY (blocking)
2066	/////////////////////////////////////////////////////////////////////////////////////////
2067
2068	////////////////////////////////////////////////////////
2069	void rpc_sched_display_client( cxy_t cxy,
2070	lid_t lid)
2071	{
2072	assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
2073
2074	// initialise RPC descriptor header
2075	rpc_desc_t rpc;
2076	rpc.index = RPC_SCHED_DISPLAY;
2077	rpc.blocking = true;
2078	rpc.responses = 1;
2079
2080	// set input arguments in RPC descriptor
2081	rpc.args[0] = (uint64_t)lid;
2082
2083	// register RPC request in remote RPC fifo
2084	rpc_send( cxy , &rpc );
2085
2086	}
2087
2088	//////////////////////////////////////////
2089	void rpc_sched_display_server( xptr_t xp )
2090	{
2091	// get client cluster identifier and pointer on RPC descriptor
2092	cxy_t cxy = GET_CXY( xp );
2093	rpc_desc_t * desc = GET_PTR( xp );
2094
2095	// get input arguments from client RPC descriptor
2096	lid_t lid = (lid_t)hal_remote_lwd( XPTR(cxy , &desc->args[0]));
2097
2098	// call local kernel function
2099	sched_display( lid );
2100
2101	}
2102
2103	/////////////////////////////////////////////////////////////////////////////////////////
2104	// [28] Marshaling functions attached to RPC_VMM_SET_COW (blocking)
2105	/////////////////////////////////////////////////////////////////////////////////////////
2106
2107	/////////////////////////////////////////////
2108	void rpc_vmm_set_cow_client( cxy_t cxy,
2109	process_t * process )
2110	{
2111	assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
2112
2113	// initialise RPC descriptor header
2114	rpc_desc_t rpc;
2115	rpc.index = RPC_VMM_SET_COW;
2116	rpc.blocking = true;
2117	rpc.responses = 1;
2118
2119	// set input arguments in RPC descriptor
2120	rpc.args[0] = (uint64_t)(intptr_t)process;
2121
2122	// register RPC request in remote RPC fifo
2123	rpc_send( cxy , &rpc );
2124
2125	}
2126
2127	////////////////////////////////////////
2128	void rpc_vmm_set_cow_server( xptr_t xp )
2129	{
2130	process_t * process;
2131
2132	// get client cluster identifier and pointer on RPC descriptor
2133	cxy_t cxy = GET_CXY( xp );
2134	rpc_desc_t * desc = GET_PTR( xp );
2135
2136	// get input arguments from client RPC descriptor
2137	process = (process_t *)(intptr_t)hal_remote_lwd( XPTR(cxy , &desc->args[0]));
2138
2139	// call local kernel function
2140	vmm_set_cow( process );
2141
2142	}
2143
2144	/////////////////////////////////////////////////////////////////////////////////////////
2145	// [29] Marshaling functions attached to RPC_VMM_DISPLAY (blocking)
2146	/////////////////////////////////////////////////////////////////////////////////////////
2147
2148	/////////////////////////////////////////////
2149	void rpc_vmm_display_client( cxy_t cxy,
2150	process_t * process,
2151	bool_t detailed )
2152	{
2153	assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
2154
2155	// initialise RPC descriptor header
2156	rpc_desc_t rpc;
2157	rpc.index = RPC_VMM_DISPLAY;
2158	rpc.blocking = true;
2159	rpc.responses = 1;
2160
2161	// set input arguments in RPC descriptor
2162	rpc.args[0] = (uint64_t)(intptr_t)process;
2163	rpc.args[1] = (uint64_t)detailed;
2164
2165	// register RPC request in remote RPC fifo
2166	rpc_send( cxy , &rpc );
2167
2168	}
2169
2170	////////////////////////////////////////
2171	void rpc_vmm_display_server( xptr_t xp )
2172	{
2173	process_t * process;
2174	bool_t detailed;
2175
2176	// get client cluster identifier and pointer on RPC descriptor
2177	cxy_t cxy = GET_CXY( xp );
2178	rpc_desc_t * desc = GET_PTR( xp );
2179
2180	// get input arguments from client RPC descriptor
2181	process = (process_t *)(intptr_t)hal_remote_lwd( XPTR(cxy , &desc->args[0]));
2182	detailed = (bool_t) hal_remote_lwd( XPTR(cxy , &desc->args[1]));
2183
2184	// call local kernel function
2185	vmm_display( process , detailed );
2186
2187	}
2188
2189

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