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rpc.c @ 687

Last change on this file since 687 was 669, checked in by alain, 4 years ago

1) Introduce up to 4 command lines arguments in the KSH "load" command.
These arguments are transfered to the user process through the
argc/argv mechanism, using the user space "args" vseg.

2) Introduce the named and anonymous "pipes", for inter-process communication
through the pipe() and mkfifo() syscalls.

3) Introduce the "chat" application to validate the two above mechanisms.

4) Improve printk() and assert() fonctions in printk.c.

File size: 103.1 KB

Line
1	/*
2	* rpc.c - RPC operations implementation.
3	*
4	* Author Alain Greiner (2016,2017,2018,2019,2020)
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_kernel_types.h>
26	#include <hal_vmm.h>
27	#include <hal_atomic.h>
28	#include <hal_remote.h>
29	#include <hal_irqmask.h>
30	#include <hal_special.h>
31	#include <printk.h>
32	#include <user_dir.h>
33	#include <remote_sem.h>
34	#include <core.h>
35	#include <mapper.h>
36	#include <chdev.h>
37	#include <bits.h>
38	#include <thread.h>
39	#include <cluster.h>
40	#include <process.h>
41	#include <vfs.h>
42	#include <fatfs.h>
43	#include <rpc.h>
44
45
46	/////////////////////////////////////////////////////////////////////////////////////////
47	// Array of function pointers and array of printable strings.
48	// These arrays must be kept consistent with enum in rpc.h file.
49	/////////////////////////////////////////////////////////////////////////////////////////
50
51	rpc_server_t * rpc_server[RPC_MAX_INDEX] =
52	{
53	&rpc_undefined, // 0
54	&rpc_undefined, // 1
55	&rpc_undefined, // 2
56	&rpc_process_make_fork_server, // 3
57	&rpc_user_dir_create_server, // 4
58	&rpc_user_dir_destroy_server, // 5
59	&rpc_thread_user_create_server, // 6
60	&rpc_thread_kernel_create_server, // 7
61	&rpc_undefined, // 8
62	&rpc_process_sigaction_server, // 9
63
64	&rpc_undefined, // 10
65	&rpc_undefined, // 11
66	&rpc_undefined, // 12
67	&rpc_undefined, // 13
68	&rpc_undefined, // 14
69	&rpc_vmm_resize_vseg_server, // 15
70	&rpc_vmm_remove_vseg_server, // 16
71	&rpc_vmm_create_vseg_server, // 17
72	&rpc_vmm_set_cow_server, // 18
73	&rpc_undefined, // 19
74	};
75
76	char * rpc_str[RPC_MAX_INDEX] =
77	{
78	"undefined_0", // 0
79	"undefined_1", // 1
80	"undefined_2", // 2
81	"PROCESS_MAKE_FORK", // 3
82	"USER_DIR_CREATE", // 4
83	"USER_DIR_DESTROY", // 5
84	"THREAD_USER_CREATE", // 6
85	"THREAD_KERNEL_CREATE", // 7
86	"FBF_DISPLAY", // 8
87	"PROCESS_SIGACTION", // 9
88
89	"undefined_10", // 10
90	"undefined_11", // 11
91	"undefined_12", // 12
92	"undefined_13", // 13
93	"undefined_14", // 14
94	"VMM_RESIZE_VSEG", // 15
95	"VMM_REMOVE_VSEG", // 16
96	"VMM_CREATE_VSEG", // 17
97	"VMM_SET_COW", // 18
98	"undefined_19", // 19
99	};
100
101	//////////////////////////////////////////////////////////////////////////////////
102	void __attribute__((noinline)) rpc_undefined( xptr_t xp __attribute__ ((unused)) )
103	{
104	assert( __FUNCTION__, false , "called in cluster %x", local_cxy );
105	}
106
107	/***************************************************************************************/
108	/********** Generic function supporting RPCs : client side *************************/
109	/***************************************************************************************/
110
111	///////////////////////////////////////
112	void rpc_send( cxy_t server_cxy,
113	rpc_desc_t * rpc )
114	{
115	lid_t server_core_lid;
116	lid_t client_core_lid;
117	volatile error_t full;
118	thread_t * this;
119
120	full = 0;
121	this = CURRENT_THREAD;
122	client_core_lid = this->core->lid;
123
124	// check calling thread can yield when is not the IDLE thread
125	// RPCs executed by the IDLE thread during kernel_init do not deschedule
126	if( this->type != THREAD_IDLE ) thread_assert_can_yield( this , __FUNCTION__ );
127
128	// select a server_core : use client core index if possible / core 0 otherwise
129	if( client_core_lid < hal_remote_l32( XPTR( server_cxy , &LOCAL_CLUSTER->cores_nr ) ) )
130	{
131	server_core_lid = client_core_lid;
132	}
133	else
134	{
135	server_core_lid = 0;
136	}
137
138	// register client_thread and client_core in RPC descriptor
139	rpc->thread = this;
140	rpc->lid = client_core_lid;
141
142	// build extended pointer on the RPC descriptor
143	xptr_t desc_xp = XPTR( local_cxy , rpc );
144
145	// get local pointer on rpc_fifo in remote cluster,
146	remote_fifo_t * rpc_fifo = &LOCAL_CLUSTER->rpc_fifo[server_core_lid];
147	xptr_t rpc_fifo_xp = XPTR( server_cxy , rpc_fifo );
148
149	// post RPC in remote fifo / deschedule without blocking if fifo full
150	do
151	{
152	full = remote_fifo_put_item( rpc_fifo_xp , (uint64_t )desc_xp );
153
154	if ( full )
155	{
156	printk("\n[WARNING] %s : cluster %x cannot post RPC to cluster %x\n",
157	__FUNCTION__ , local_cxy , server_cxy );
158
159	// deschedule without blocking
160	sched_yield("RPC fifo full");
161	}
162	}
163	while( full );
164
165	#if DEBUG_RPC_CLIENT_GENERIC
166	uint32_t cycle = (uint32_t)hal_get_cycles();
167	uint32_t items = remote_fifo_items( rpc_fifo_xp );
168	if( DEBUG_RPC_CLIENT_GENERIC < cycle )
169	printk("\n[%s] thread[%x,%x] / rpc %s / server[%x,%d] / items %d / cycle %d\n",
170	__FUNCTION__, this->process->pid, this->trdid, rpc_str[rpc->index],
171	server_cxy, server_core_lid, items, cycle );
172	#endif
173
174	// send IPI to the selected server core
175	dev_pic_send_ipi( server_cxy , server_core_lid );
176
177	// wait RPC completion before returning if blocking RPC :
178	// - deschedule without blocking if thread idle (in kernel init)
179	// - block and deschedule policy for any other thread
180	if ( rpc->blocking )
181	{
182	if( this->type == THREAD_IDLE ) // deschedule without blocking policy
183	{
184
185	#if DEBUG_RPC_CLIENT_GENERIC
186	cycle = (uint32_t)hal_get_cycles();
187	if( DEBUG_RPC_CLIENT_GENERIC < cycle )
188	printk("\n[%s] thread[%x,%x] enter waiting loop for rpc %s / cycle %d\n",
189	__FUNCTION__, this->process->pid, this->trdid, rpc_str[rpc->index], cycle );
190	#endif
191	while( 1 )
192	{
193	// check responses counter
194	if( hal_remote_l32( XPTR( local_cxy , rpc->rsp ) ) == 0 ) break;
195
196	// deschedule
197	sched_yield("busy_waiting RPC completion");
198	}
199
200	#if DEBUG_RPC_CLIENT_GENERIC
201	cycle = (uint32_t)hal_get_cycles();
202	if( DEBUG_RPC_CLIENT_GENERIC < cycle )
203	printk("\n[%s] thread[%x,%x] received response for rpc %s / cycle %d\n",
204	__FUNCTION__, this->process->pid, this->trdid, rpc_str[rpc->index], cycle );
205	#endif
206
207	}
208	else // block and deschedule policy
209	{
210
211	#if DEBUG_RPC_CLIENT_GENERIC
212	cycle = (uint32_t)hal_get_cycles();
213	if( DEBUG_RPC_CLIENT_GENERIC < cycle )
214	printk("\n[%s] thread[%x,%x] blocks & deschedules for rpc %s / cycle %d\n",
215	__FUNCTION__, this->process->pid, this->trdid, rpc_str[rpc->index], cycle );
216	#endif
217
218	// block client thread
219	thread_block( XPTR( local_cxy , this ) , THREAD_BLOCKED_RPC );
220
221	// deschedule
222	sched_yield("blocked on RPC");
223
224	#if DEBUG_RPC_CLIENT_GENERIC
225	cycle = (uint32_t)hal_get_cycles();
226	if( DEBUG_RPC_CLIENT_GENERIC < cycle )
227	printk("\n[%s] thread[%x,%x] resumes after rpc %s / cycle %d\n",
228	__FUNCTION__, this->process->pid, this->trdid, rpc_str[rpc->index], cycle );
229	#endif
230	}
231
232	// response must be available for a blocking RPC
233	assert( __FUNCTION__, (*rpc->rsp == 0) , "illegal response for RPC %s\n", rpc_str[rpc->index] );
234
235	}
236	else // non blocking RPC
237	{
238
239	#if DEBUG_RPC_CLIENT_GENERIC
240	cycle = (uint32_t)hal_get_cycles();
241	if( DEBUG_RPC_CLIENT_GENERIC < cycle )
242	printk("\n[%s] thread[%x,%x] returns for non blocking rpc %s / cycle %d\n",
243	__FUNCTION__, this->process->pid, this->trdid, rpc_str[rpc->index], cycle );
244	#endif
245
246	}
247	} // end rpc_send()
248
249
250	/***************************************************************************************/
251	/********** Generic functions supporting RPCs : server side ************************/
252	/***************************************************************************************/
253
254	////////////////////////////
255	void rpc_server_func( void )
256	{
257	error_t empty; // local RPC fifo state
258	xptr_t desc_xp; // extended pointer on RPC request
259	cxy_t desc_cxy; // RPC request cluster (client)
260	rpc_desc_t * desc_ptr; // RPC request local pointer
261	uint32_t index; // RPC request index
262	thread_t * client_ptr; // local pointer on client thread
263	xptr_t client_xp; // extended pointer on client thread
264	lid_t client_lid; // local index of client core
265	thread_t * server_ptr; // local pointer on server thread
266	xptr_t server_xp; // extended pointer on server thread
267	lid_t server_lid; // local index of server core
268	remote_fifo_t * rpc_fifo; // local pointer on RPC fifo
269	uint32_t * rsp_ptr; // local pointer on responses counter
270	xptr_t rsp_xp; // extended pointer on responses counter
271	uint32_t responses; // number of expected responses
272
273	// makes RPC thread not preemptable
274	hal_disable_irq( NULL );
275
276	server_ptr = CURRENT_THREAD;
277	server_xp = XPTR( local_cxy , server_ptr );
278	server_lid = server_ptr->core->lid;
279	rpc_fifo = &LOCAL_CLUSTER->rpc_fifo[server_lid];
280
281	// "infinite" RPC thread loop
282	while(1)
283	{
284	// try to take RPC_FIFO ownership
285	if( hal_atomic_test_set( &rpc_fifo->owner , server_ptr->trdid ) )
286	{
287
288	#if DEBUG_RPC_SERVER_GENERIC
289	uint32_t cycle = (uint32_t)hal_get_cycles();
290	if( DEBUG_RPC_SERVER_GENERIC < cycle )
291	printk("\n[%s] RPC thread[%x,%x] on core[%d] takes RPC_FIFO ownership / cycle %d\n",
292	__FUNCTION__, server_ptr->process->pid, server_ptr->trdid, server_lid, cycle );
293	#endif
294	// try to consume one RPC request
295	empty = remote_fifo_get_item( rpc_fifo , (uint64_t *)&desc_xp );
296
297	// release RPC_FIFO ownership
298	rpc_fifo->owner = 0;
299
300	// handle RPC request if success
301	if ( empty == 0 )
302	{
303	// get client cluster and pointer on RPC descriptor
304	desc_cxy = GET_CXY( desc_xp );
305	desc_ptr = GET_PTR( desc_xp );
306
307	// get relevant infos from RPC descriptor
308	index = hal_remote_l32( XPTR( desc_cxy , &desc_ptr->index ) );
309	client_ptr = hal_remote_lpt( XPTR( desc_cxy , &desc_ptr->thread ) );
310	rsp_ptr = hal_remote_lpt( XPTR( desc_cxy , &desc_ptr->rsp ) );
311	client_lid = hal_remote_l32( XPTR( desc_cxy , &desc_ptr->lid ) );
312
313	rsp_xp = XPTR( desc_cxy , rsp_ptr );
314	client_xp = XPTR( desc_cxy , client_ptr );
315
316	#if DEBUG_RPC_SERVER_GENERIC
317	cycle = (uint32_t)hal_get_cycles();
318	uint32_t items = remote_fifo_items( XPTR( local_cxy , rpc_fifo ) );
319	if( DEBUG_RPC_SERVER_GENERIC < cycle )
320	printk("\n[%s] RPC thread[%x,%x] got rpc %s / client_cxy %x / items %d / cycle %d\n",
321	__FUNCTION__, server_ptr->process->pid, server_ptr->trdid, rpc_str[index], desc_cxy, items, cycle );
322	#endif
323	// register client thread in RPC thread descriptor
324	server_ptr->rpc_client_xp = client_xp;
325
326	// call the relevant server function
327	rpc_server[index]( desc_xp );
328
329	// update responses counter
330	responses = hal_remote_atomic_add( rsp_xp , -1 );
331
332	#if DEBUG_RPC_SERVER_GENERIC
333	cycle = (uint32_t)hal_get_cycles();
334	if( DEBUG_RPC_SERVER_GENERIC < cycle )
335	printk("\n[%s] RPC thread[%x,%x] completes rpc %s / responses %d / cycle %d\n",
336	__FUNCTION__, server_ptr->process->pid, server_ptr->trdid, rpc_str[index], responses, cycle );
337	#endif
338	// decrement expected responses counter
339	// unblock client thread if last response
340	if( responses == 1 )
341	{
342	// unblock client thread
343	thread_unblock( client_xp , THREAD_BLOCKED_RPC );
344
345	hal_fence();
346
347	#if DEBUG_RPC_SERVER_GENERIC
348	cycle = (uint32_t)hal_get_cycles();
349	trdid_t client_trdid = hal_remote_l32( XPTR( desc_cxy , &client_ptr->trdid ) );
350	process_t * process = hal_remote_lpt( XPTR( desc_cxy , &client_ptr->process ) );
351	pid_t client_pid = hal_remote_l32( XPTR( desc_cxy , &process->pid ) );
352	if( DEBUG_RPC_SERVER_GENERIC < cycle )
353	printk("\n[%s] RPC thread[%x,%x] unblocked client thread[%x,%x] / cycle %d\n",
354	__FUNCTION__, server_ptr->process->pid, server_ptr->trdid,
355	client_pid, client_trdid, cycle );
356	#endif
357	// send IPI to client core
358	dev_pic_send_ipi( desc_cxy , client_lid );
359	}
360	} // end RPC handling if fifo non empty
361	} // end if RPC_fIFO ownership successfully taken and released
362
363	// sucide if too many RPC threads
364	if( LOCAL_CLUSTER->rpc_threads[server_lid] >= CONFIG_RPC_THREADS_MAX )
365	{
366
367	#if DEBUG_RPC_SERVER_GENERIC
368	uint32_t cycle = (uint32_t)hal_get_cycles();
369	if( DEBUG_RPC_SERVER_GENERIC < cycle )
370	printk("\n[%s] RPC thread[%x,%x] suicides / cycle %d\n",
371	__FUNCTION__, server_ptr->process->pid, server_ptr->trdid, cycle );
372	#endif
373	// update RPC threads counter
374	hal_atomic_add( &LOCAL_CLUSTER->rpc_threads[server_lid] , -1 );
375
376	// RPC thread blocks on GLOBAL
377	thread_block( server_xp , THREAD_BLOCKED_GLOBAL );
378
379	// RPC thread set the REQ_DELETE flag to suicide
380	hal_remote_atomic_or( server_xp , THREAD_FLAG_REQ_DELETE );
381	}
382	// block and deschedule otherwise
383	else
384	{
385
386	#if DEBUG_RPC_SERVER_GENERIC
387	uint32_t cycle = (uint32_t)hal_get_cycles();
388	if( DEBUG_RPC_SERVER_GENERIC < cycle )
389	printk("\n[%s] RPC thread[%x,%x] blocks & deschedules / cycle %d\n",
390	__FUNCTION__, server_ptr->process->pid, server_ptr->trdid, cycle );
391	#endif
392	// RPC thread blocks on IDLE
393	thread_block( server_xp , THREAD_BLOCKED_IDLE );
394
395	// RPC thread deschedules
396	sched_yield("RPC_FIFO empty");
397	}
398	} // end infinite loop
399
400	} // end rpc_server_func()
401
402
403	/***************************************************************************************/
404	/********** Marshaling functions ordered by increasing index ***********************/
405	/***************************************************************************************/
406
407
408	/////////////////////////////////////////////////////////////////////////////////////////
409	// [0] undefined
410	/////////////////////////////////////////////////////////////////////////////////////////
411
412	/////////////////////////////////////////////////////////////////////////////////////////
413	// [1] undefined
414	/////////////////////////////////////////////////////////////////////////////////////////
415
416	/////////////////////////////////////////////////////////////////////////////////////////
417	// [2] undefined
418	/////////////////////////////////////////////////////////////////////////////////////////
419
420
421	/////////////////////////////////////////////////////////////////////////////////////////
422	// [3] Marshaling function attached to RPC_MAKE_FORK
423	/////////////////////////////////////////////////////////////////////////////////////////
424
425	///////////////////////////////////////////////////
426	void rpc_process_make_fork_client( cxy_t cxy,
427	xptr_t ref_process_xp, // in
428	xptr_t parent_thread_xp, // in
429	pid_t * child_pid, // out
430	thread_t ** child_thread_ptr, // out
431	error_t * error ) // out
432	{
433	#if DEBUG_RPC_PROCESS_MAKE_FORK
434	thread_t * this = CURRENT_THREAD;
435	uint32_t cycle = (uint32_t)hal_get_cycles();
436	if( cycle > DEBUG_RPC_PROCESS_MAKE_FORK )
437	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
438	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
439	#endif
440
441	uint32_t responses = 1;
442
443	// initialise RPC descriptor header
444	rpc_desc_t rpc;
445	rpc.index = RPC_PROCESS_MAKE_FORK;
446	rpc.blocking = true;
447	rpc.rsp = &responses;
448
449	// set input arguments in RPC descriptor
450	rpc.args[0] = (uint64_t)ref_process_xp;
451	rpc.args[1] = (uint64_t)parent_thread_xp;
452
453	// register RPC request in remote RPC fifo
454	rpc_send( cxy , &rpc );
455
456	// get output arguments from RPC descriptor
457	*child_pid = (pid_t)rpc.args[2];
458	child_thread_ptr = (thread_t )(intptr_t)rpc.args[3];
459	*error = (error_t)rpc.args[4];
460
461	#if DEBUG_RPC_PROCESS_MAKE_FORK
462	cycle = (uint32_t)hal_get_cycles();
463	if( cycle > DEBUG_RPC_PROCESS_MAKE_FORK )
464	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
465	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
466	#endif
467	}
468
469	//////////////////////////////////////////////
470	void rpc_process_make_fork_server( xptr_t xp )
471	{
472	#if DEBUG_RPC_PROCESS_MAKE_FORK
473	thread_t * this = CURRENT_THREAD;
474	uint32_t cycle = (uint32_t)hal_get_cycles();
475	if( cycle > DEBUG_RPC_PROCESS_MAKE_FORK )
476	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
477	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
478	#endif
479
480	xptr_t ref_process_xp; // extended pointer on reference parent process
481	xptr_t parent_thread_xp; // extended pointer on parent thread
482	pid_t child_pid; // child process identifier
483	thread_t * child_thread_ptr; // local copy of exec_info structure
484	error_t error; // local error status
485
486	// get client cluster identifier and pointer on RPC descriptor
487	cxy_t client_cxy = GET_CXY( xp );
488	rpc_desc_t * desc = GET_PTR( xp );
489
490	// get input arguments from cient RPC descriptor
491	ref_process_xp = (xptr_t)hal_remote_l64( XPTR( client_cxy , &desc->args[0] ) );
492	parent_thread_xp = (xptr_t)hal_remote_l64( XPTR( client_cxy , &desc->args[1] ) );
493
494	// call local kernel function
495	error = process_make_fork( ref_process_xp,
496	parent_thread_xp,
497	&child_pid,
498	&child_thread_ptr );
499
500	// set output argument into client RPC descriptor
501	hal_remote_s64( XPTR( client_cxy , &desc->args[2] ) , (uint64_t)child_pid );
502	hal_remote_s64( XPTR( client_cxy , &desc->args[3] ) , (uint64_t)(intptr_t)child_thread_ptr );
503	hal_remote_s64( XPTR( client_cxy , &desc->args[4] ) , (uint64_t)error );
504
505	#if DEBUG_RPC_PROCESS_MAKE_FORK
506	cycle = (uint32_t)hal_get_cycles();
507	if( cycle > DEBUG_RPC_PROCESS_MAKE_FORK )
508	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
509	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
510	#endif
511	}
512
513	/////////////////////////////////////////////////////////////////////////////////////////
514	// [4] Marshaling functions attached to RPC_USER_DIR_CREATE
515	/////////////////////////////////////////////////////////////////////////////////////////
516
517	////////////////////////////////////////////////////
518	void rpc_user_dir_create_client( cxy_t cxy,
519	vfs_inode_t * inode,
520	xptr_t ref_xp,
521	user_dir_t ** dir )
522	{
523	#if DEBUG_RPC_USER_DIR_CREATE
524	thread_t * this = CURRENT_THREAD;
525	uint32_t cycle = (uint32_t)hal_get_cycles();
526	if( cycle > DEBUG_RPC_USER_DIR_CREATE)
527	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
528	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
529	#endif
530
531	uint32_t responses = 1;
532
533	// initialise RPC descriptor header
534	rpc_desc_t rpc;
535	rpc.index = RPC_USER_DIR_CREATE;
536	rpc.blocking = true;
537	rpc.rsp = &responses;
538
539	// set input arguments in RPC descriptor
540	rpc.args[0] = (uint64_t)(intptr_t)inode;
541	rpc.args[1] = (uint64_t)ref_xp;
542
543	// register RPC request in remote RPC fifo
544	rpc_send( cxy , &rpc );
545
546	// get output argument from RPC descriptor
547	dir = (user_dir_t )(intptr_t)rpc.args[2];
548
549	#if DEBUG_RPC_USER_DIR_CREATE
550	cycle = (uint32_t)hal_get_cycles();
551	if( cycle > DEBUG_RPC_USER_DIR_CREATE)
552	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
553	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
554	#endif
555	}
556
557	////////////////////////////////////////////
558	void rpc_user_dir_create_server( xptr_t xp )
559	{
560	#if DEBUG_RPC_USER_DIR_CREATE
561	thread_t * this = CURRENT_THREAD;
562	uint32_t cycle = (uint32_t)hal_get_cycles();
563	if( cycle > DEBUG_RPC_USER_DIR_CREATE)
564	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
565	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
566	#endif
567
568	vfs_inode_t * inode; // pointer on inode in server cluster
569	xptr_t ref_xp; // extended pointer on reference user process
570	user_dir_t * dir; // pointer on user_dir structure in server cluster
571
572	// get client cluster identifier and pointer on RPC descriptor
573	cxy_t client_cxy = GET_CXY( xp );
574	rpc_desc_t * desc = GET_PTR( xp );
575
576	// get input argument from RPC descriptor
577	inode = (vfs_inode_t *)(intptr_t)hal_remote_l64(XPTR(client_cxy , &desc->args[0]));
578	ref_xp = (xptr_t) hal_remote_l64(XPTR(client_cxy , &desc->args[1]));
579
580	// call kernel function
581	dir = user_dir_create( inode , ref_xp );
582
583	// set output argument into RPC descriptor
584	hal_remote_s64( XPTR( client_cxy , &desc->args[2] ) , (intptr_t)dir );
585
586	#if DEBUG_RPC_USER_DIR_CREATE
587	cycle = (uint32_t)hal_get_cycles();
588	if( cycle > DEBUG_RPC_USER_DIR_CREATE)
589	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
590	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
591	#endif
592	}
593
594	/////////////////////////////////////////////////////////////////////////////////////////
595	// [5] Marshaling functions attached to RPC_USER_DIR_DESTROY
596	/////////////////////////////////////////////////////////////////////////////////////////
597
598	////////////////////////////////////////////////////
599	void rpc_user_dir_destroy_client( cxy_t cxy,
600	user_dir_t * dir,
601	xptr_t ref_xp )
602	{
603	#if DEBUG_RPC_USER_DIR_DESTROY
604	thread_t * this = CURRENT_THREAD;
605	uint32_t cycle = (uint32_t)hal_get_cycles();
606	if( cycle > DEBUG_RPC_USER_DIR_DESTROY)
607	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
608	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
609	#endif
610
611	uint32_t responses = 1;
612
613	// initialise RPC descriptor header
614	rpc_desc_t rpc;
615	rpc.index = RPC_USER_DIR_DESTROY;
616	rpc.blocking = true;
617	rpc.rsp = &responses;
618
619	// set input arguments in RPC descriptor
620	rpc.args[0] = (uint64_t)(intptr_t)dir;
621	rpc.args[1] = (uint64_t)ref_xp;
622
623	// register RPC request in remote RPC fifo
624	rpc_send( cxy , &rpc );
625
626	#if DEBUG_RPC_USER_DIR_DESTROY
627	cycle = (uint32_t)hal_get_cycles();
628	if( cycle > DEBUG_RPC_USER_DIR_DESTROY)
629	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
630	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
631	#endif
632	}
633
634	/////////////////////////////////////////////
635	void rpc_user_dir_destroy_server( xptr_t xp )
636	{
637	#if DEBUG_RPC_USER_DIR_DESTROY
638	thread_t * this = CURRENT_THREAD;
639	uint32_t cycle = (uint32_t)hal_get_cycles();
640	if( cycle > DEBUG_RPC_USER_DIR_DESTROY)
641	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
642	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
643	#endif
644
645	user_dir_t * dir; // pointer on user_dir structure in server cluster
646	xptr_t ref_xp; // extended pointer on reference process
647
648	// get client cluster identifier and pointer on RPC descriptor
649	cxy_t client_cxy = GET_CXY( xp );
650	rpc_desc_t * desc = GET_PTR( xp );
651
652	// get input argument from RPC descriptor
653	dir = (user_dir_t *)(intptr_t)hal_remote_l64(XPTR(client_cxy , &desc->args[0]));
654	ref_xp = (xptr_t) hal_remote_l64(XPTR(client_cxy , &desc->args[1]));
655
656	// call kernel function
657	user_dir_destroy( dir , ref_xp );
658
659	#if DEBUG_RPC_USER_DIR_DESTROY
660	cycle = (uint32_t)hal_get_cycles();
661	if( cycle > DEBUG_RPC_USER_DIR_DESTROY)
662	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
663	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
664	#endif
665	}
666
667	/////////////////////////////////////////////////////////////////////////////////////////
668	// [6] Marshaling functions attached to RPC_THREAD_USER_CREATE
669	/////////////////////////////////////////////////////////////////////////////////////////
670
671	/////////////////////////////////////////////////////////
672	void rpc_thread_user_create_client( cxy_t cxy,
673	pid_t pid, // in
674	void * start_func, // in
675	void * start_arg, // in
676	pthread_attr_t * attr, // in
677	xptr_t * thread_xp, // out
678	error_t * error ) // out
679	{
680	#if DEBUG_RPC_THREAD_USER_CREATE
681	thread_t * this = CURRENT_THREAD;
682	uint32_t cycle = (uint32_t)hal_get_cycles();
683	if( cycle > DEBUG_RPC_THREAD_USER_CREATE)
684	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
685	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
686	#endif
687
688	uint32_t responses = 1;
689
690	// initialise RPC descriptor header
691	rpc_desc_t rpc;
692	rpc.index = RPC_THREAD_USER_CREATE;
693	rpc.blocking = true;
694	rpc.rsp = &responses;
695
696	// set input arguments in RPC descriptor
697	rpc.args[0] = (uint64_t)pid;
698	rpc.args[1] = (uint64_t)(intptr_t)start_func;
699	rpc.args[2] = (uint64_t)(intptr_t)start_arg;
700	rpc.args[3] = (uint64_t)(intptr_t)attr;
701
702	// register RPC request in remote RPC fifo
703	rpc_send( cxy , &rpc );
704
705	// get output arguments from RPC descriptor
706	*thread_xp = (xptr_t)rpc.args[4];
707	*error = (error_t)rpc.args[5];
708
709	#if DEBUG_RPC_THREAD_USER_CREATE
710	cycle = (uint32_t)hal_get_cycles();
711	if( cycle > DEBUG_RPC_THREAD_USER_CREATE)
712	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
713	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
714	#endif
715	}
716
717	///////////////////////////////////////////////
718	void rpc_thread_user_create_server( xptr_t xp )
719	{
720	#if DEBUG_RPC_THREAD_USER_CREATE
721	thread_t * this = CURRENT_THREAD;
722	uint32_t cycle = (uint32_t)hal_get_cycles();
723	if( cycle > DEBUG_RPC_THREAD_USER_CREATE)
724	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
725	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
726	#endif
727
728	pthread_attr_t * attr_ptr; // pointer on attributes structure in client cluster
729	pthread_attr_t attr_copy; // attributes structure copy in server cluster
730	thread_t * thread_ptr; // local pointer on thread descriptor
731	xptr_t thread_xp; // extended pointer on thread descriptor
732
733	pid_t pid; // process identifier
734	void * start_func;
735	void * start_arg;
736	error_t error;
737
738	// get client cluster identifier and pointer on RPC descriptor
739	cxy_t client_cxy = GET_CXY( xp );
740	rpc_desc_t * desc = GET_PTR( xp );
741
742	// get input arguments from RPC descriptor
743	pid = (pid_t) hal_remote_l64(XPTR(client_cxy , &desc->args[0]));
744	start_func = (void *)(intptr_t) hal_remote_l64(XPTR(client_cxy , &desc->args[1]));
745	start_arg = (void *)(intptr_t) hal_remote_l64(XPTR(client_cxy , &desc->args[2]));
746	attr_ptr = (pthread_attr_t *)(intptr_t)hal_remote_l64(XPTR(client_cxy , &desc->args[3]));
747
748	// makes a local copy of attributes structure
749	hal_remote_memcpy( XPTR( local_cxy , &attr_copy ),
750	XPTR( client_cxy , attr_ptr ),
751	sizeof(pthread_attr_t) );
752
753	// call kernel function
754	error = thread_user_create( pid,
755	start_func,
756	start_arg,
757	&attr_copy,
758	&thread_ptr );
759	// set output arguments
760	thread_xp = XPTR( local_cxy , thread_ptr );
761	hal_remote_s64( XPTR( client_cxy , &desc->args[4] ) , (uint64_t)thread_xp );
762	hal_remote_s64( XPTR( client_cxy , &desc->args[5] ) , (uint64_t)error );
763
764	#if DEBUG_RPC_THREAD_USER_CREATE
765	cycle = (uint32_t)hal_get_cycles();
766	if( cycle > DEBUG_RPC_THREAD_USER_CREATE)
767	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
768	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
769	#endif
770	}
771
772	/////////////////////////////////////////////////////////////////////////////////////////
773	// [7] Marshaling functions attached to RPC_THREAD_KERNEL_CREATE
774	/////////////////////////////////////////////////////////////////////////////////////////
775
776	////////////////////////////////////////////////////
777	void rpc_thread_kernel_create_client( cxy_t cxy,
778	uint32_t type, // in
779	void * func, // in
780	void * args, // in
781	xptr_t * thread_xp, // out
782	error_t * error ) // out
783	{
784	#if DEBUG_RPC_THREAD_KERNEL_CREATE
785	thread_t * this = CURRENT_THREAD;
786	uint32_t cycle = (uint32_t)hal_get_cycles();
787	if( cycle > DEBUG_RPC_THREAD_KERNEL_CREATE)
788	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
789	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
790	#endif
791
792	uint32_t responses = 1;
793
794	// initialise RPC descriptor header
795	rpc_desc_t rpc;
796	rpc.index = RPC_THREAD_KERNEL_CREATE;
797	rpc.blocking = true;
798	rpc.rsp = &responses;
799
800	// set input arguments in RPC descriptor
801	rpc.args[0] = (uint64_t)type;
802	rpc.args[1] = (uint64_t)(intptr_t)func;
803	rpc.args[2] = (uint64_t)(intptr_t)args;
804
805	// register RPC request in remote RPC fifo
806	rpc_send( cxy , &rpc );
807
808	// get output arguments from RPC descriptor
809	*thread_xp = (xptr_t)rpc.args[3];
810	*error = (error_t)rpc.args[4];
811
812	#if DEBUG_RPC_THREAD_KERNEL_CREATE
813	cycle = (uint32_t)hal_get_cycles();
814	if( cycle > DEBUG_RPC_THREAD_KERNEL_CREATE)
815	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
816	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
817	#endif
818	}
819
820	/////////////////////////////////////////////////
821	void rpc_thread_kernel_create_server( xptr_t xp )
822	{
823	#if DEBUG_RPC_THREAD_KERNEL_CREATE
824	thread_t * this = CURRENT_THREAD;
825	uint32_t cycle = (uint32_t)hal_get_cycles();
826	if( cycle > DEBUG_RPC_THREAD_KERNEL_CREATE)
827	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
828	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
829	#endif
830
831	thread_t * thread_ptr; // local pointer on thread descriptor
832	xptr_t thread_xp; // extended pointer on thread descriptor
833	lid_t core_lid; // core local index
834	error_t error;
835
836	// get client cluster identifier and pointer on RPC descriptor
837	cxy_t client_cxy = GET_CXY( xp );
838	rpc_desc_t * desc = GET_PTR( xp );
839
840	// get attributes from RPC descriptor
841	uint32_t type = (uint32_t) hal_remote_l64( XPTR( client_cxy , &desc->args[0] ) );
842	void * func = (void*)(intptr_t)hal_remote_l64( XPTR( client_cxy , &desc->args[1] ) );
843	void * args = (void*)(intptr_t)hal_remote_l64( XPTR( client_cxy , &desc->args[2] ) );
844
845	// select one core
846	core_lid = cluster_select_local_core( local_cxy );
847
848	// call local kernel function
849	error = thread_kernel_create( &thread_ptr , type , func , args , core_lid );
850
851	// set output arguments
852	thread_xp = XPTR( local_cxy , thread_ptr );
853	hal_remote_s64( XPTR( client_cxy , &desc->args[1] ) , (uint64_t)error );
854	hal_remote_s64( XPTR( client_cxy , &desc->args[2] ) , (uint64_t)thread_xp );
855
856	#if DEBUG_RPC_THREAD_KERNEL_CREATE
857	cycle = (uint32_t)hal_get_cycles();
858	if( cycle > DEBUG_RPC_THREAD_KERNEL_CREATE)
859	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
860	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
861	#endif
862	}
863
864	/////////////////////////////////////////////////////////////////////////////////////////
865	// [8] undefined
866	/////////////////////////////////////////////////////////////////////////////////////////
867
868	/////////////////////////////////////////////////////////////////////////////////////////
869	// [9] Marshaling functions attached to RPC_PROCESS_SIGACTION
870	/////////////////////////////////////////////////////////////////////////////////////////
871
872	////////////////////////////////////////////////////
873	void rpc_process_sigaction_client( cxy_t cxy,
874	pid_t pid,
875	uint32_t action )
876	{
877	#if DEBUG_RPC_PROCESS_SIGACTION
878	uint32_t cycle = (uint32_t)hal_get_cycles();
879	thread_t * this = CURRENT_THREAD;
880	if( DEBUG_RPC_PROCESS_SIGACTION < cycle )
881	printk("\n[%s] thread[%x,%x] on core %d : enter to %s process %x / cycle %d\n",
882	__FUNCTION__, this->process->pid, this->trdid, this->core->lid,
883	process_action_str( action ), pid, cycle );
884	#endif
885
886	uint32_t responses = 1;
887	rpc_desc_t rpc;
888
889	// initialise RPC descriptor header
890	rpc.index = RPC_PROCESS_SIGACTION;
891	rpc.blocking = true;
892	rpc.rsp = &responses;
893
894	// set input arguments in RPC descriptor
895	rpc.args[0] = (uint64_t)pid;
896	rpc.args[1] = (uint64_t)action;
897
898	// register RPC request in remote RPC fifo
899	rpc_send( cxy , &rpc );
900
901	#if DEBUG_RPC_PROCESS_SIGACTION
902	cycle = (uint32_t)hal_get_cycles();
903	if( DEBUG_RPC_PROCESS_SIGACTION < cycle )
904	printk("\n[%s] thread[%x,%x] on core %d : exit after %s process %x / cycle %d\n",
905	__FUNCTION__, this->process->pid, this->trdid, this->core->lid,
906	process_action_str( action ), pid, cycle );
907	#endif
908	}
909
910	//////////////////////////////////////////////
911	void rpc_process_sigaction_server( xptr_t xp )
912	{
913	// get client cluster identifier and pointer on RPC descriptor
914	cxy_t client_cxy = GET_CXY( xp );
915	rpc_desc_t * desc = GET_PTR( xp );
916
917	// get arguments from RPC descriptor
918	pid_t pid = (pid_t) hal_remote_l64( XPTR(client_cxy , &desc->args[0]) );
919	uint32_t action = (uint32_t)hal_remote_l64( XPTR(client_cxy , &desc->args[1]) );
920
921	#if DEBUG_RPC_PROCESS_SIGACTION
922	uint32_t cycle = (uint32_t)hal_get_cycles();
923	thread_t * this = CURRENT_THREAD;
924	if( DEBUG_RPC_PROCESS_SIGACTION < cycle )
925	printk("\n[%s] thread[%x,%x] on core %d : enter to %s process %x / cycle %d\n",
926	__FUNCTION__, this->process->pid, this->trdid, this->core->lid,
927	process_action_str( action ), pid, cycle );
928	#endif
929
930	// get client thread pointers
931	thread_t * client_ptr = hal_remote_lpt( XPTR( client_cxy , &desc->thread ) );
932	xptr_t client_xp = XPTR( client_cxy , client_ptr );
933
934	// get local process descriptor
935	process_t * process = cluster_get_local_process_from_pid( pid );
936
937	// call relevant kernel function if found / does nothing if not found
938	if( process != NULL )
939	{
940	if ( action == DELETE_ALL_THREADS ) process_delete_threads ( process , client_xp );
941	if ( action == BLOCK_ALL_THREADS ) process_block_threads ( process );
942	if ( action == UNBLOCK_ALL_THREADS ) process_unblock_threads( process );
943	}
944
945	#if DEBUG_RPC_PROCESS_SIGACTION
946	cycle = (uint32_t)hal_get_cycles();
947	if( DEBUG_RPC_PROCESS_SIGACTION < cycle )
948	printk("\n[%s] thread[%x,%x] on core %d : exit after %s process %x / cycle %d\n",
949	__FUNCTION__, this->process->pid, this->trdid, this->core->lid,
950	process_action_str( action ), pid, cycle );
951	#endif
952	}
953
954	/////////////////////////////////////////////////////////////////////////////////////////
955	// [10] undefined
956	/////////////////////////////////////////////////////////////////////////////////////////
957
958	/////////////////////////////////////////////////////////////////////////////////////////
959	// [11] undefined
960	/////////////////////////////////////////////////////////////////////////////////////////
961
962	/////////////////////////////////////////////////////////////////////////////////////////
963	// [12] undefined
964	/////////////////////////////////////////////////////////////////////////////////////////
965
966	/////////////////////////////////////////////////////////////////////////////////////////
967	// [13] undefined
968	/////////////////////////////////////////////////////////////////////////////////////////
969
970	/////////////////////////////////////////////////////////////////////////////////////////
971	// [14] undefined
972	/////////////////////////////////////////////////////////////////////////////////////////
973
974	/////////////////////////////////////////////////////////////////////////////////////////
975	// [15] Marshaling functions attached to RPC_VMM_RESIZE_VSEG
976	/////////////////////////////////////////////////////////////////////////////////////////
977
978	//////////////////////////////////////////////////////////
979	void rpc_vmm_resize_vseg_client( cxy_t cxy,
980	pid_t pid,
981	intptr_t base,
982	intptr_t new_base,
983	intptr_t new_size )
984	{
985	#if DEBUG_RPC_VMM_RESIZE_VSEG
986	thread_t * this = CURRENT_THREAD;
987	uint32_t cycle = (uint32_t)hal_get_cycles();
988	if( cycle > DEBUG_RPC_VMM_RESIZE_VSEG )
989	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
990	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
991	#endif
992
993	uint32_t responses = 1;
994
995	// initialise RPC descriptor header
996	rpc_desc_t rpc;
997	rpc.index = RPC_VMM_RESIZE_VSEG;
998	rpc.blocking = true;
999	rpc.rsp = &responses;
1000
1001	// set input arguments in RPC descriptor
1002	rpc.args[0] = (uint64_t)pid;
1003	rpc.args[1] = (uint64_t)base;
1004	rpc.args[2] = (uint64_t)new_base;
1005	rpc.args[3] = (uint64_t)new_size;
1006
1007	// register RPC request in remote RPC fifo
1008	rpc_send( cxy , &rpc );
1009
1010	#if DEBUG_RPC_VMM_RESIZE_VSEG
1011	cycle = (uint32_t)hal_get_cycles();
1012	if( cycle > DEBUG_RPC_VMM_RESIZE_VSEG )
1013	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
1014	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
1015	#endif
1016	}
1017
1018	////////////////////////////////////////////
1019	void rpc_vmm_resize_vseg_server( xptr_t xp )
1020	{
1021	#if DEBUG_RPC_VMM_RESIZE_VSEG
1022	thread_t * this = CURRENT_THREAD;
1023	uint32_t cycle = (uint32_t)hal_get_cycles();
1024	if( cycle > DEBUG_RPC_VMM_RESIZE_VSEG )
1025	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
1026	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
1027	#endif
1028
1029	pid_t pid;
1030	process_t * process;
1031	intptr_t base;
1032	vseg_t * vseg;
1033	intptr_t new_base;
1034	intptr_t new_size;
1035
1036	// get client cluster identifier and pointer on RPC descriptor
1037	cxy_t client_cxy = GET_CXY( xp );
1038	rpc_desc_t * desc = GET_PTR( xp );
1039
1040	// get arguments from client RPC descriptor
1041	pid = (pid_t) hal_remote_l64( XPTR( client_cxy , &desc->args[0] ) );
1042	base = (intptr_t)hal_remote_l64( XPTR( client_cxy , &desc->args[1] ) );
1043	new_base = (intptr_t)hal_remote_l64( XPTR( client_cxy , &desc->args[2] ) );
1044	new_size = (intptr_t)hal_remote_l64( XPTR( client_cxy , &desc->args[3] ) );
1045
1046	// get local pointer on target process
1047	process = cluster_get_local_process_from_pid( pid );
1048
1049	// get target vseg from vaddr
1050	vmm_get_vseg( process , base , &vseg );
1051
1052	// call relevant kernel function
1053	vmm_resize_vseg( process,
1054	vseg,
1055	new_base,
1056	new_size );
1057
1058	#if DEBUG_RPC_VMM_RESIZE_VSEG
1059	cycle = (uint32_t)hal_get_cycles();
1060	if( cycle > DEBUG_RPC_VMM_RESIZE_VSEG )
1061	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
1062	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
1063	#endif
1064	}
1065
1066
1067	/////////////////////////////////////////////////////////////////////////////////////////
1068	// [16] Marshaling functions attached to RPC_VMM_REMOVE_VSEG
1069	/////////////////////////////////////////////////////////////////////////////////////////
1070
1071	/////////////////////////////////////////////////
1072	void rpc_vmm_remove_vseg_client( cxy_t cxy,
1073	pid_t pid,
1074	intptr_t base )
1075	{
1076	#if DEBUG_RPC_VMM_REMOVE_VSEG
1077	thread_t * this = CURRENT_THREAD;
1078	uint32_t cycle = (uint32_t)hal_get_cycles();
1079	if( cycle > DEBUG_RPC_VMM_REMOVE_VSEG )
1080	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
1081	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
1082	#endif
1083
1084	uint32_t responses = 1;
1085	rpc_desc_t rpc;
1086
1087	// initialise RPC descriptor header
1088	rpc.index = RPC_VMM_REMOVE_VSEG;
1089	rpc.blocking = true;
1090	rpc.rsp = &responses;
1091
1092	// set input arguments in RPC descriptor
1093	rpc.args[0] = (uint64_t)pid;
1094	rpc.args[1] = (uint64_t)base;
1095
1096	// register RPC request in remote RPC fifo
1097	rpc_send( cxy , &rpc );
1098
1099	#if DEBUG_RPC_VMM_REMOVE_VSEG
1100	cycle = (uint32_t)hal_get_cycles();
1101	if( cycle > DEBUG_RPC_VMM_REMOVE_VSEG )
1102	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
1103	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
1104	#endif
1105	}
1106
1107	////////////////////////////////////////////
1108	void rpc_vmm_remove_vseg_server( xptr_t xp )
1109	{
1110	#if DEBUG_RPC_VMM_REMOVE_VSEG
1111	uint32_t cycle = (uint32_t)hal_get_cycles();
1112	thread_t * this = CURRENT_THREAD;
1113	if( DEBUG_RPC_VMM_REMOVE_VSEG < cycle )
1114	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
1115	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
1116	#endif
1117
1118	pid_t pid;
1119	intptr_t vaddr;
1120	process_t * process;
1121	vseg_t * vseg;
1122
1123	// get client cluster identifier and pointer on RPC descriptor
1124	cxy_t client_cxy = GET_CXY( xp );
1125	rpc_desc_t * desc = GET_PTR( xp );
1126
1127	// get arguments from RPC descriptor
1128	pid = (pid_t) hal_remote_l64( XPTR( client_cxy , &desc->args[0] ) );
1129	vaddr = (intptr_t)hal_remote_l64( XPTR( client_cxy , &desc->args[1] ) );
1130
1131	// get local pointer on target process
1132	process = cluster_get_local_process_from_pid( pid );
1133
1134	// get target vseg from vaddr
1135	vmm_get_vseg( process , vaddr , &vseg );
1136
1137	// call relevant kernel function
1138	vmm_remove_vseg( process,
1139	vseg );
1140
1141	#if DEBUG_RPC_VMM_REMOVE_VSEG
1142	cycle = (uint32_t)hal_get_cycles();
1143	if( DEBUG_RPC_VMM_REMOVE_VSEG < cycle )
1144	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
1145	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
1146	#endif
1147	}
1148
1149	/////////////////////////////////////////////////////////////////////////////////////////
1150	// [17] Marshaling functions attached to RPC_VMM_CREATE_VSEG
1151	/////////////////////////////////////////////////////////////////////////////////////////
1152
1153	////////////////////////////////////////////////////////
1154	void rpc_vmm_create_vseg_client( cxy_t cxy,
1155	struct process_s * process,
1156	vseg_type_t type,
1157	intptr_t base,
1158	uint32_t size,
1159	uint32_t file_offset,
1160	uint32_t file_size,
1161	xptr_t mapper_xp,
1162	cxy_t vseg_cxy,
1163	struct vseg_s ** vseg )
1164	{
1165	#if DEBUG_RPC_VMM_CREATE_VSEG
1166	thread_t * this = CURRENT_THREAD;
1167	uint32_t cycle = (uint32_t)hal_get_cycles();
1168	if( cycle > DEBUG_RPC_VMM_CREATE_VSEG )
1169	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
1170	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
1171	#endif
1172
1173	uint32_t responses = 1;
1174
1175	// initialise RPC descriptor header
1176	rpc_desc_t rpc;
1177	rpc.index = RPC_VMM_CREATE_VSEG;
1178	rpc.blocking = true;
1179	rpc.rsp = &responses;
1180
1181	// set input arguments in RPC descriptor
1182	rpc.args[0] = (uint64_t)(intptr_t)process;
1183	rpc.args[1] = (uint64_t)type;
1184	rpc.args[2] = (uint64_t)base;
1185	rpc.args[3] = (uint64_t)size;
1186	rpc.args[4] = (uint64_t)file_offset;
1187	rpc.args[5] = (uint64_t)file_size;
1188	rpc.args[6] = (uint64_t)mapper_xp;
1189	rpc.args[7] = (uint64_t)vseg_cxy;
1190
1191	// register RPC request in remote RPC fifo
1192	rpc_send( cxy , &rpc );
1193
1194	// get output values from RPC descriptor
1195	vseg = (vseg_t )(intptr_t)rpc.args[8];
1196
1197	#if DEBUG_RPC_VMM_CREATE_VSEG
1198	cycle = (uint32_t)hal_get_cycles();
1199	if( cycle > DEBUG_RPC_VMM_CREATE_VSEG )
1200	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
1201	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
1202	#endif
1203	}
1204
1205	////////////////////////////////////////////
1206	void rpc_vmm_create_vseg_server( xptr_t xp )
1207	{
1208	#if DEBUG_RPC_VMM_CREATE_VSEG
1209	thread_t * this = CURRENT_THREAD;
1210	uint32_t cycle = (uint32_t)hal_get_cycles();
1211	if( cycle > DEBUG_RPC_VMM_CREATE_VSEG )
1212	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
1213	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
1214	#endif
1215
1216	// get client cluster identifier and pointer on RPC descriptor
1217	cxy_t cxy = GET_CXY( xp );
1218	rpc_desc_t * desc = GET_PTR( xp );
1219
1220	// get input arguments from client RPC descriptor
1221	process_t * process = (process_t *)(intptr_t)hal_remote_l64( XPTR(cxy , &desc->args[0]));
1222	vseg_type_t type = (vseg_type_t)(uint32_t)hal_remote_l64( XPTR(cxy , &desc->args[1]));
1223	intptr_t base = (intptr_t) hal_remote_l64( XPTR(cxy , &desc->args[2]));
1224	uint32_t size = (uint32_t) hal_remote_l64( XPTR(cxy , &desc->args[3]));
1225	uint32_t file_offset = (uint32_t) hal_remote_l64( XPTR(cxy , &desc->args[4]));
1226	uint32_t file_size = (uint32_t) hal_remote_l64( XPTR(cxy , &desc->args[5]));
1227	xptr_t mapper_xp = (xptr_t) hal_remote_l64( XPTR(cxy , &desc->args[6]));
1228	cxy_t vseg_cxy = (cxy_t)(uint32_t) hal_remote_l64( XPTR(cxy , &desc->args[7]));
1229
1230	// call local kernel function
1231	vseg_t * vseg = vmm_create_vseg( process,
1232	type,
1233	base,
1234	size,
1235	file_offset,
1236	file_size,
1237	mapper_xp,
1238	vseg_cxy );
1239
1240	// set output arguments into client RPC descriptor
1241	hal_remote_s64( XPTR( cxy , &desc->args[8] ) , (uint64_t)(intptr_t)vseg );
1242
1243	#if DEBUG_RPC_VMM_CREATE_VSEG
1244	cycle = (uint32_t)hal_get_cycles();
1245	if( cycle > DEBUG_RPC_VMM_CREATE_VSEG )
1246	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
1247	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
1248	#endif
1249	}
1250
1251	/////////////////////////////////////////////////////////////////////////////////////////
1252	// [18] Marshaling functions attached to RPC_VMM_SET_COW
1253	/////////////////////////////////////////////////////////////////////////////////////////
1254
1255	/////////////////////////////////////////////
1256	void rpc_vmm_set_cow_client( cxy_t cxy,
1257	process_t * process )
1258	{
1259	#if DEBUG_RPC_VMM_SET_COW
1260	thread_t * this = CURRENT_THREAD;
1261	uint32_t cycle = (uint32_t)hal_get_cycles();
1262	if( cycle > DEBUG_RPC_VMM_SET_COW )
1263	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
1264	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
1265	#endif
1266
1267	uint32_t responses = 1;
1268
1269	// initialise RPC descriptor header
1270	rpc_desc_t rpc;
1271	rpc.index = RPC_VMM_SET_COW;
1272	rpc.blocking = true;
1273	rpc.rsp = &responses;
1274
1275	// set input arguments in RPC descriptor
1276	rpc.args[0] = (uint64_t)(intptr_t)process;
1277
1278	// register RPC request in remote RPC fifo
1279	rpc_send( cxy , &rpc );
1280
1281	#if DEBUG_RPC_VMM_SET_COW
1282	cycle = (uint32_t)hal_get_cycles();
1283	if( cycle > DEBUG_RPC_VMM_SET_COW )
1284	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
1285	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
1286	#endif
1287	}
1288
1289	////////////////////////////////////////
1290	void rpc_vmm_set_cow_server( xptr_t xp )
1291	{
1292	#if DEBUG_RPC_VMM_SET_COW
1293	thread_t * this = CURRENT_THREAD;
1294	uint32_t cycle = (uint32_t)hal_get_cycles();
1295	if( cycle > DEBUG_RPC_VMM_SET_COW )
1296	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
1297	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
1298	#endif
1299
1300	process_t * process;
1301
1302	// get client cluster identifier and pointer on RPC descriptor
1303	cxy_t cxy = GET_CXY( xp );
1304	rpc_desc_t * desc = GET_PTR( xp );
1305
1306	// get input arguments from client RPC descriptor
1307	process = (process_t *)(intptr_t)hal_remote_l64( XPTR(cxy , &desc->args[0]));
1308
1309	// call local kernel function
1310	vmm_set_cow( process );
1311
1312	#if DEBUG_RPC_VMM_SET_COW
1313	cycle = (uint32_t)hal_get_cycles();
1314	if( cycle > DEBUG_RPC_VMM_SET_COW )
1315	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
1316	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
1317	#endif
1318	}
1319
1320
1321
1322	/////////////////////////////////////////////////////////////////////////////////////////
1323	/////////////////////////////////////////////////////////////////////////////////////////
1324	// DEPRECATED RPCs
1325	/////////////////////////////////////////////////////////////////////////////////////////
1326	/////////////////////////////////////////////////////////////////////////////////////////
1327
1328	/*
1329
1330	/////////////////////////////////////////////////////////////////////////////////////////
1331	// [0] RPC_PMEM_GET_PAGES deprecated [AG] May 2019
1332	/////////////////////////////////////////////////////////////////////////////////////////
1333	void rpc_pmem_get_pages_client( cxy_t cxy,
1334	uint32_t order, // in
1335	page_t ** page ) // out
1336	{
1337	#if DEBUG_RPC_PMEM_GET_PAGES
1338	thread_t * this = CURRENT_THREAD;
1339	uint32_t cycle = (uint32_t)hal_get_cycles();
1340	if( cycle > DEBUG_RPC_PMEM_GET_PAGES )
1341	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
1342	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
1343	#endif
1344
1345	uint32_t responses = 1;
1346
1347	// initialise RPC descriptor header
1348	rpc_desc_t rpc;
1349	rpc.index = RPC_PMEM_GET_PAGES;
1350	rpc.blocking = true;
1351	rpc.rsp = &responses;
1352
1353	// set input arguments in RPC descriptor
1354	rpc.args[0] = (uint64_t)order;
1355
1356	// register RPC request in remote RPC fifo
1357	rpc_send( cxy , &rpc );
1358
1359	// get output arguments from RPC descriptor
1360	page = (page_t )(intptr_t)rpc.args[1];
1361
1362	#if DEBUG_RPC_PMEM_GET_PAGES
1363	cycle = (uint32_t)hal_get_cycles();
1364	if( cycle > DEBUG_RPC_PMEM_GET_PAGES )
1365	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
1366	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
1367	#endif
1368	}
1369
1370	///////////////////////////////////////////
1371	void rpc_pmem_get_pages_server( xptr_t xp )
1372	{
1373	#if DEBUG_RPC_PMEM_GET_PAGES
1374	thread_t * this = CURRENT_THREAD;
1375	uint32_t cycle = (uint32_t)hal_get_cycles();
1376	if( cycle > DEBUG_RPC_PMEM_GET_PAGES )
1377	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
1378	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
1379	#endif
1380
1381	// get client cluster identifier and pointer on RPC descriptor
1382	cxy_t cxy = GET_CXY( xp );
1383	rpc_desc_t * desc = GET_PTR( xp );
1384
1385	// get input arguments from client RPC descriptor
1386	uint32_t order = (uint32_t)hal_remote_l64( XPTR( cxy , &desc->args[0] ) );
1387
1388	// call local pmem allocator
1389	page_t * page = ppm_alloc_pages( order );
1390
1391	// set output arguments into client RPC descriptor
1392	hal_remote_s64( XPTR( cxy , &desc->args[1] ) , (uint64_t)(intptr_t)page );
1393
1394	#if DEBUG_RPC_PMEM_GET_PAGES
1395	cycle = (uint32_t)hal_get_cycles();
1396	if( cycle > DEBUG_RPC_PMEM_GET_PAGES )
1397	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
1398	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
1399	#endif
1400	}
1401
1402	/////////////////////////////////////////////////////////////////////////////////////////
1403	// [1] RPC_PMEM_RELEASE_PAGES deprecated [AG] may 2019
1404	/////////////////////////////////////////////////////////////////////////////////////////
1405	void rpc_pmem_release_pages_client( cxy_t cxy,
1406	page_t * page ) // out
1407	{
1408	#if DEBUG_RPC_PMEM_RELEASE_PAGES
1409	thread_t * this = CURRENT_THREAD;
1410	uint32_t cycle = (uint32_t)hal_get_cycles();
1411	if( cycle > DEBUG_RPC_PMEM_RELEASE_PAGES )
1412	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
1413	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
1414	#endif
1415
1416	uint32_t responses = 1;
1417
1418	// initialise RPC descriptor header
1419	rpc_desc_t rpc;
1420	rpc.index = RPC_PMEM_RELEASE_PAGES;
1421	rpc.blocking = true;
1422	rpc.rsp = &responses;
1423
1424	// set input arguments in RPC descriptor
1425	rpc.args[0] = (uint64_t)(intptr_t)page;
1426
1427	// register RPC request in remote RPC fifo
1428	rpc_send( cxy , &rpc );
1429
1430	#if DEBUG_RPC_PMEM_RELEASE_PAGES
1431	cycle = (uint32_t)hal_get_cycles();
1432	if( cycle > DEBUG_RPC_PMEM_RELEASE_PAGES )
1433	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
1434	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
1435	#endif
1436	}
1437
1438	///////////////////////////////////////////////
1439	void rpc_pmem_release_pages_server( xptr_t xp )
1440	{
1441	#if DEBUG_RPC_PMEM_RELEASE_PAGES
1442	thread_t * this = CURRENT_THREAD;
1443	uint32_t cycle = (uint32_t)hal_get_cycles();
1444	if( cycle > DEBUG_RPC_PMEM_RELEASE_PAGES )
1445	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
1446	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
1447	#endif
1448
1449	// get client cluster identifier and pointer on RPC descriptor
1450	cxy_t cxy = GET_CXY( xp );
1451	rpc_desc_t * desc = GET_PTR( xp );
1452
1453	// get input arguments from client RPC descriptor
1454	page_t * page = (page_t *)(intptr_t)hal_remote_l64( XPTR( cxy , &desc->args[0] ) );
1455
1456	// release memory to local pmem
1457	kmem_req_t req;
1458	req.type = KMEM_PPM;
1459	req.ptr = page;
1460	kmem_free( &req );
1461
1462	#if DEBUG_RPC_PMEM_RELEASE_PAGES
1463	cycle = (uint32_t)hal_get_cycles();
1464	if( cycle > DEBUG_RPC_PMEM_RELEASE_PAGES )
1465	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
1466	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
1467	#endif
1468	}
1469
1470	/////////////////////////////////////////////////////////////////////////////////////////
1471	// [2] RPC_PPM_DISPLAY deprecated [AG] May 2019
1472	/////////////////////////////////////////////////////////////////////////////////////////
1473	void rpc_ppm_display_client( cxy_t cxy )
1474	{
1475	#if DEBUG_RPC_PPM_DISPLAY
1476	thread_t * this = CURRENT_THREAD;
1477	uint32_t cycle = (uint32_t)hal_get_cycles();
1478	if( cycle > DEBUG_RPC_PPM_DISPLAY )
1479	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
1480	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
1481	#endif
1482
1483	uint32_t responses = 1;
1484
1485	// initialise RPC descriptor header
1486	rpc_desc_t rpc;
1487	rpc.index = RPC_PPM_DISPLAY;
1488	rpc.blocking = true;
1489	rpc.rsp = &responses;
1490
1491	// register RPC request in remote RPC fifo
1492	rpc_send( cxy , &rpc );
1493
1494	#if DEBUG_RPC_PPM_DISPLAY
1495	cycle = (uint32_t)hal_get_cycles();
1496	if( cycle > DEBUG_RPC_PPM_DISPLAY )
1497	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
1498	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
1499	#endif
1500	}
1501
1502	////////////////////////////////////////////////////////////////////
1503	void rpc_ppm_display_server( xptr_t __attribute__((__unused__)) xp )
1504	{
1505	#if DEBUG_RPC_PPM_DISPLAY
1506	thread_t * this = CURRENT_THREAD;
1507	uint32_t cycle = (uint32_t)hal_get_cycles();
1508	if( cycle > DEBUG_RPC_PPM_DISPLAY )
1509	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
1510	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
1511	#endif
1512
1513	// call local kernel function
1514	ppm_display();
1515
1516	#if DEBUG_RPC_PPM_DISPLAY
1517	cycle = (uint32_t)hal_get_cycles();
1518	if( cycle > DEBUG_RPC_PPM_DISPLAY )
1519	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
1520	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
1521	#endif
1522	}
1523
1524	/////////////////////////////////////////////////////////////////////////////////////////
1525	// [8] RPC_VFS_FS_UPDATE_DENTRY deprecated [AG] dec 2019
1526	/////////////////////////////////////////////////////////////////////////////////////////
1527	void rpc_vfs_fs_update_dentry_client( cxy_t cxy,
1528	vfs_inode_t * inode,
1529	vfs_dentry_t * dentry,
1530	uint32_t size,
1531	error_t * error )
1532	{
1533	#if DEBUG_RPC_VFS_FS_UPDATE_DENTRY
1534	thread_t * this = CURRENT_THREAD;
1535	uint32_t cycle = (uint32_t)hal_get_cycles();
1536	if( cycle > DEBUG_RPC_VFS_FS_UPDATE_DENTRY )
1537	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
1538	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
1539	#endif
1540
1541	uint32_t responses = 1;
1542
1543	// initialise RPC descriptor header
1544	rpc_desc_t rpc;
1545	rpc.index = RPC_VFS_FS_UPDATE_DENTRY;
1546	rpc.blocking = true;
1547	rpc.rsp = &responses;
1548
1549	// set input arguments in RPC descriptor
1550	rpc.args[0] = (uint64_t)(intptr_t)inode;
1551	rpc.args[1] = (uint64_t)(intptr_t)dentry;
1552	rpc.args[2] = (uint64_t)size;
1553
1554	// register RPC request in remote RPC fifo
1555	rpc_send( cxy , &rpc );
1556
1557	// get output values from RPC descriptor
1558	*error = (error_t)rpc.args[3];
1559
1560	#if DEBUG_RPC_VFS_FS_UPDATE_DENTRY
1561	cycle = (uint32_t)hal_get_cycles();
1562	if( cycle > DEBUG_RPC_VFS_FS_UPDATE_DENTRY )
1563	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
1564	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
1565	#endif
1566	}
1567
1568	/////////////////////////////////////////////////
1569	void rpc_vfs_fs_update_dentry_server( xptr_t xp )
1570	{
1571	#if DEBUG_RPC_VFS_FS_UPDATE_DENTRY
1572	thread_t * this = CURRENT_THREAD;
1573	uint32_t cycle = (uint32_t)hal_get_cycles();
1574	if( cycle > DEBUG_RPC_VFS_FS_UPDATE_DENTRY )
1575	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
1576	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
1577	#endif
1578
1579	error_t error;
1580	vfs_inode_t * inode;
1581	vfs_dentry_t * dentry;
1582	uint32_t size;
1583
1584	// get client cluster identifier and pointer on RPC descriptor
1585	cxy_t client_cxy = GET_CXY( xp );
1586	rpc_desc_t * desc = GET_PTR( xp );
1587
1588	// get input arguments
1589	inode = (vfs_inode_t*)(intptr_t) hal_remote_l64(XPTR(client_cxy , &desc->args[0]));
1590	dentry = (vfs_dentry_t*)(intptr_t)hal_remote_l64(XPTR(client_cxy , &desc->args[1]));
1591	size = (uint32_t) hal_remote_l64(XPTR(client_cxy , &desc->args[2]));
1592
1593	// call the kernel function
1594	error = vfs_fs_update_dentry( inode , dentry , size );
1595
1596	// set output argument
1597	hal_remote_s64( XPTR( client_cxy , &desc->args[3] ) , (uint64_t)error );
1598
1599	#if DEBUG_RPC_VFS_FS_UPDATE_DENTRY
1600	cycle = (uint32_t)hal_get_cycles();
1601	if( cycle > DEBUG_RPC_VFS_FS_UPDATE_DENTRY )
1602	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
1603	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
1604	#endif
1605	}
1606
1607
1608	/////////////////////////////////////////////////////////////////////////////////////////
1609	// [29] RPC_VMM_DISPLAY deprecated [AG] June 2019
1610	/////////////////////////////////////////////////////////////////////////////////////////
1611	void rpc_hal_vmm_display_client( cxy_t cxy,
1612	process_t * process,
1613	bool_t detailed )
1614	{
1615	#if DEBUG_RPC_VMM_DISPLAY
1616	thread_t * this = CURRENT_THREAD;
1617	uint32_t cycle = (uint32_t)hal_get_cycles();
1618	if( cycle > DEBUG_RPC_VMM_DISPLAY )
1619	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
1620	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
1621	#endif
1622
1623	uint32_t responses = 1;
1624
1625	// initialise RPC descriptor header
1626	rpc_desc_t rpc;
1627	rpc.index = RPC_VMM_DISPLAY;
1628	rpc.blocking = true;
1629	rpc.rsp = &responses;
1630
1631	// set input arguments in RPC descriptor
1632	rpc.args[0] = (uint64_t)(intptr_t)process;
1633	rpc.args[1] = (uint64_t)detailed;
1634
1635	// register RPC request in remote RPC fifo
1636	rpc_send( cxy , &rpc );
1637
1638	#if DEBUG_RPC_VMM_DISPLAY
1639	cycle = (uint32_t)hal_get_cycles();
1640	if( cycle > DEBUG_RPC_VMM_DISPLAY )
1641	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
1642	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
1643	#endif
1644	}
1645
1646	////////////////////////////////////////
1647	void rpc_hal_vmm_display_server( xptr_t xp )
1648	{
1649	#if DEBUG_RPC_VMM_DISPLAY
1650	thread_t * this = CURRENT_THREAD;
1651	uint32_t cycle = (uint32_t)hal_get_cycles();
1652	if( cycle > DEBUG_RPC_VMM_DISPLAY )
1653	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
1654	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
1655	#endif
1656
1657	process_t * process;
1658	bool_t detailed;
1659
1660	// get client cluster identifier and pointer on RPC descriptor
1661	cxy_t cxy = GET_CXY( xp );
1662	rpc_desc_t * desc = GET_PTR( xp );
1663
1664	// get input arguments from client RPC descriptor
1665	process = (process_t *)(intptr_t)hal_remote_l64( XPTR(cxy , &desc->args[0]));
1666	detailed = (bool_t) hal_remote_l64( XPTR(cxy , &desc->args[1]));
1667
1668	// call local kernel function
1669	hal_vmm_display( process , detailed );
1670
1671	#if DEBUG_RPC_VMM_DISPLAY
1672	cycle = (uint32_t)hal_get_cycles();
1673	if( cycle > DEBUG_RPC_VMM_DISPLAY )
1674	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
1675	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
1676	#endif
1677	}
1678
1679	/////////////////////////////////////////////////////////////////////////////////////////
1680	// [10] to RPC_VFS_INODE_CREATE deprecated [AG] dec 2019
1681	/////////////////////////////////////////////////////////////////////////////////////////
1682	void rpc_vfs_inode_create_client( cxy_t cxy,
1683	uint32_t fs_type, // in
1684	uint32_t attr, // in
1685	uint32_t rights, // in
1686	uint32_t uid, // in
1687	uint32_t gid, // in
1688	xptr_t * inode_xp, // out
1689	error_t * error ) // out
1690	{
1691	#if DEBUG_RPC_VFS_INODE_CREATE
1692	thread_t * this = CURRENT_THREAD;
1693	uint32_t cycle = (uint32_t)hal_get_cycles();
1694	if( cycle > DEBUG_RPC_VFS_INODE_CREATE )
1695	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
1696	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
1697	#endif
1698
1699	uint32_t responses = 1;
1700
1701	// initialise RPC descriptor header
1702	rpc_desc_t rpc;
1703	rpc.index = RPC_VFS_INODE_CREATE;
1704	rpc.blocking = true;
1705	rpc.rsp = &responses;
1706
1707	// set input arguments in RPC descriptor
1708	rpc.args[0] = (uint64_t)fs_type;
1709	rpc.args[1] = (uint64_t)attr;
1710	rpc.args[2] = (uint64_t)rights;
1711	rpc.args[3] = (uint64_t)uid;
1712	rpc.args[4] = (uint64_t)gid;
1713
1714	// register RPC request in remote RPC fifo
1715	rpc_send( cxy , &rpc );
1716
1717	// get output values from RPC descriptor
1718	*inode_xp = (xptr_t)rpc.args[5];
1719	*error = (error_t)rpc.args[6];
1720
1721	#if DEBUG_RPC_VFS_INODE_CREATE
1722	cycle = (uint32_t)hal_get_cycles();
1723	if( cycle > DEBUG_RPC_VFS_INODE_CREATE )
1724	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
1725	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
1726	#endif
1727	}
1728
1729	/////////////////////////////////////////////
1730	void rpc_vfs_inode_create_server( xptr_t xp )
1731	{
1732	#if DEBUG_RPC_VFS_INODE_CREATE
1733	thread_t * this = CURRENT_THREAD;
1734	uint32_t cycle = (uint32_t)hal_get_cycles();
1735	if( cycle > DEBUG_RPC_VFS_INODE_CREATE )
1736	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
1737	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
1738	#endif
1739
1740	uint32_t fs_type;
1741	uint32_t attr;
1742	uint32_t rights;
1743	uint32_t uid;
1744	uint32_t gid;
1745	xptr_t inode_xp;
1746	error_t error;
1747
1748	// get client cluster identifier and pointer on RPC descriptor
1749	cxy_t client_cxy = GET_CXY( xp );
1750	rpc_desc_t * desc = GET_PTR( xp );
1751
1752	// get input arguments from client rpc descriptor
1753	fs_type = (uint32_t) hal_remote_l64( XPTR( client_cxy , &desc->args[0] ) );
1754	attr = (uint32_t) hal_remote_l64( XPTR( client_cxy , &desc->args[1] ) );
1755	rights = (uint32_t) hal_remote_l64( XPTR( client_cxy , &desc->args[2] ) );
1756	uid = (uid_t) hal_remote_l64( XPTR( client_cxy , &desc->args[3] ) );
1757	gid = (gid_t) hal_remote_l64( XPTR( client_cxy , &desc->args[4] ) );
1758
1759	// call local kernel function
1760	error = vfs_inode_create( fs_type,
1761	attr,
1762	rights,
1763	uid,
1764	gid,
1765	&inode_xp );
1766
1767	// set output arguments
1768	hal_remote_s64( XPTR( client_cxy , &desc->args[5] ) , (uint64_t)inode_xp );
1769	hal_remote_s64( XPTR( client_cxy , &desc->args[6] ) , (uint64_t)error );
1770
1771	#if DEBUG_RPC_VFS_INODE_CREATE
1772	cycle = (uint32_t)hal_get_cycles();
1773	if( cycle > DEBUG_RPC_VFS_INODE_CREATE )
1774	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
1775	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
1776	#endif
1777	}
1778
1779	/////////////////////////////////////////////////////////////////////////////////////////
1780	// [11] to RPC_VFS_INODE_DESTROY deprecated [AG] dec 2019
1781	/////////////////////////////////////////////////////////////////////////////////////////
1782	void rpc_vfs_inode_destroy_client( cxy_t cxy,
1783	struct vfs_inode_s * inode )
1784	{
1785	#if DEBUG_RPC_VFS_INODE_DESTROY
1786	thread_t * this = CURRENT_THREAD;
1787	uint32_t cycle = (uint32_t)hal_get_cycles();
1788	if( cycle > DEBUG_RPC_VFS_INODE_DESTROY )
1789	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
1790	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
1791	#endif
1792
1793	uint32_t responses = 1;
1794
1795	// initialise RPC descriptor header
1796	rpc_desc_t rpc;
1797	rpc.index = RPC_VFS_INODE_DESTROY;
1798	rpc.blocking = true;
1799	rpc.rsp = &responses;
1800
1801	// set input arguments in RPC descriptor
1802	rpc.args[0] = (uint64_t)(intptr_t)inode;
1803
1804	// register RPC request in remote RPC fifo
1805	rpc_send( cxy , &rpc );
1806
1807	#if DEBUG_RPC_VFS_INODE_DESTROY
1808	cycle = (uint32_t)hal_get_cycles();
1809	if( cycle > DEBUG_RPC_VFS_INODE_DESTROY )
1810	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
1811	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
1812	#endif
1813	}
1814
1815	//////////////////////////////////////////////
1816	void rpc_vfs_inode_destroy_server( xptr_t xp )
1817	{
1818	#if DEBUG_RPC_VFS_INODE_DESTROY
1819	thread_t * this = CURRENT_THREAD;
1820	uint32_t cycle = (uint32_t)hal_get_cycles();
1821	if( cycle > DEBUG_RPC_VFS_INODE_DESTROY )
1822	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
1823	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
1824	#endif
1825
1826	vfs_inode_t * inode;
1827
1828	// get client cluster identifier and pointer on RPC descriptor
1829	cxy_t client_cxy = GET_CXY( xp );
1830	rpc_desc_t * desc = GET_PTR( xp );
1831
1832	// get argument "inode" from client RPC descriptor
1833	inode = (vfs_inode_t *)(intptr_t)hal_remote_l64( XPTR( client_cxy , &desc->args[0] ) );
1834
1835	// call local kernel function
1836	vfs_inode_destroy( inode );
1837
1838	#if DEBUG_RPC_VFS_INODE_DESTROY
1839	cycle = (uint32_t)hal_get_cycles();
1840	if( cycle > DEBUG_RPC_VFS_INODE_DESTROY )
1841	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
1842	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
1843	#endif
1844	}
1845
1846	/////////////////////////////////////////////////////////////////////////////////////////
1847	// [12] RPC_VFS_DENTRY_CREATE deprecated [AG] dec 2019
1848	/////////////////////////////////////////////////////////////////////////////////////////
1849	void rpc_vfs_dentry_create_client( cxy_t cxy,
1850	uint32_t type, // in
1851	char * name, // in
1852	xptr_t * dentry_xp, // out
1853	error_t * error ) // out
1854	{
1855	#if DEBUG_RPC_VFS_DENTRY_CREATE
1856	thread_t * this = CURRENT_THREAD;
1857	uint32_t cycle = (uint32_t)hal_get_cycles();
1858	if( cycle > DEBUG_RPC_VFS_DENTRY_CREATE )
1859	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
1860	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
1861	#endif
1862
1863	uint32_t responses = 1;
1864
1865	// initialise RPC descriptor header
1866	rpc_desc_t rpc;
1867	rpc.index = RPC_VFS_DENTRY_CREATE;
1868	rpc.blocking = true;
1869	rpc.rsp = &responses;
1870
1871	// set input arguments in RPC descriptor
1872	rpc.args[0] = (uint64_t)type;
1873	rpc.args[1] = (uint64_t)(intptr_t)name;
1874
1875	// register RPC request in remote RPC fifo
1876	rpc_send( cxy , &rpc );
1877
1878	// get output values from RPC descriptor
1879	*dentry_xp = (xptr_t)rpc.args[2];
1880	*error = (error_t)rpc.args[3];
1881
1882	#if DEBUG_RPC_VFS_DENTRY_CREATE
1883	cycle = (uint32_t)hal_get_cycles();
1884	if( cycle > DEBUG_RPC_VFS_DENTRY_CREATE )
1885	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
1886	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
1887	#endif
1888	}
1889
1890	//////////////////////////////////////////////
1891	void rpc_vfs_dentry_create_server( xptr_t xp )
1892	{
1893	#if DEBUG_RPC_VFS_DENTRY_CREATE
1894	thread_t * this = CURRENT_THREAD;
1895	uint32_t cycle = (uint32_t)hal_get_cycles();
1896	if( cycle > DEBUG_RPC_VFS_DENTRY_CREATE )
1897	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
1898	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
1899	#endif
1900
1901	uint32_t type;
1902	char * name;
1903	xptr_t dentry_xp;
1904	error_t error;
1905	char name_copy[CONFIG_VFS_MAX_NAME_LENGTH];
1906
1907	// get client cluster identifier and pointer on RPC descriptor
1908	cxy_t client_cxy = GET_CXY( xp );
1909	rpc_desc_t * desc = GET_PTR( xp );
1910
1911	// get arguments "name", "type", and "parent" from client RPC descriptor
1912	type = (uint32_t) hal_remote_l64( XPTR( client_cxy , &desc->args[0] ) );
1913	name = (char *)(intptr_t) hal_remote_l64( XPTR( client_cxy , &desc->args[1] ) );
1914
1915	// makes a local copy of name
1916	hal_remote_strcpy( XPTR( local_cxy , name_copy ),
1917	XPTR( client_cxy , name ) );
1918
1919	// call local kernel function
1920	error = vfs_dentry_create( type,
1921	name_copy,
1922	&dentry_xp );
1923	// set output arguments
1924	hal_remote_s64( XPTR( client_cxy , &desc->args[2] ) , (uint64_t)dentry_xp );
1925	hal_remote_s64( XPTR( client_cxy , &desc->args[3] ) , (uint64_t)error );
1926
1927	#if DEBUG_RPC_VFS_DENTRY_CREATE
1928	cycle = (uint32_t)hal_get_cycles();
1929	if( cycle > DEBUG_RPC_VFS_DENTRY_CREATE )
1930	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
1931	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
1932	#endif
1933	}
1934
1935	/////////////////////////////////////////////////////////////////////////////////////////
1936	// [13] RPC_VFS_DENTRY_DESTROY deprecated [AG] dec 2019
1937	/////////////////////////////////////////////////////////////////////////////////////////
1938	void rpc_vfs_dentry_destroy_client( cxy_t cxy,
1939	vfs_dentry_t * dentry )
1940	{
1941	#if DEBUG_RPC_VFS_DENTRY_DESTROY
1942	thread_t * this = CURRENT_THREAD;
1943	uint32_t cycle = (uint32_t)hal_get_cycles();
1944	if( cycle > DEBUG_RPC_VFS_DENTRY_DESTROY )
1945	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
1946	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
1947	#endif
1948
1949	uint32_t responses = 1;
1950
1951	// initialise RPC descriptor header
1952	rpc_desc_t rpc;
1953	rpc.index = RPC_VFS_DENTRY_DESTROY;
1954	rpc.blocking = true;
1955	rpc.rsp = &responses;
1956
1957	// set input arguments in RPC descriptor
1958	rpc.args[0] = (uint64_t)(intptr_t)dentry;
1959
1960	// register RPC request in remote RPC fifo
1961	rpc_send( cxy , &rpc );
1962
1963	#if DEBUG_RPC_VFS_DENTRY_DESTROY
1964	cycle = (uint32_t)hal_get_cycles();
1965	if( cycle > DEBUG_RPC_VFS_DENTRY_DESTROY )
1966	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
1967	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
1968	#endif
1969	}
1970
1971	///////////////////////////////////////////////
1972	void rpc_vfs_dentry_destroy_server( xptr_t xp )
1973	{
1974	#if DEBUG_RPC_VFS_DENTRY_DESTROY
1975	thread_t * this = CURRENT_THREAD;
1976	uint32_t cycle = (uint32_t)hal_get_cycles();
1977	if( cycle > DEBUG_RPC_VFS_DENTRY_DESTROY )
1978	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
1979	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
1980	#endif
1981
1982	vfs_dentry_t * dentry;
1983
1984	// get client cluster identifier and pointer on RPC descriptor
1985	cxy_t client_cxy = GET_CXY( xp );
1986	rpc_desc_t * desc = GET_PTR( xp );
1987
1988	// get arguments "dentry" from client RPC descriptor
1989	dentry = (vfs_dentry_t *)(intptr_t)hal_remote_l64( XPTR( client_cxy , &desc->args[0] ) );
1990
1991	// call local kernel function
1992	vfs_dentry_destroy( dentry );
1993
1994	#if DEBUG_RPC_VFS_DENTRY_DESTROY
1995	cycle = (uint32_t)hal_get_cycles();
1996	if( cycle > DEBUG_RPC_VFS_DENTRY_DESTROY )
1997	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
1998	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
1999	#endif
2000	}
2001
2002
2003	/////////////////////////////////////////////////////////////////////////////////////////
2004	// [14] RPC_VFS_FILE_CREATE deprecated [AG] dec 2019
2005	/////////////////////////////////////////////////////////////////////////////////////////
2006	void rpc_vfs_file_create_client( cxy_t cxy,
2007	struct vfs_inode_s * inode, // in
2008	uint32_t file_attr, // in
2009	xptr_t * file_xp, // out
2010	error_t * error ) // out
2011	{
2012	#if DEBUG_RPC_VFS_FILE_CREATE
2013	thread_t * this = CURRENT_THREAD;
2014	uint32_t cycle = (uint32_t)hal_get_cycles();
2015	if( cycle > DEBUG_RPC_VFS_FILE_CREATE )
2016	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
2017	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
2018	#endif
2019
2020	uint32_t responses = 1;
2021
2022	// initialise RPC descriptor header
2023	rpc_desc_t rpc;
2024	rpc.index = RPC_VFS_FILE_CREATE;
2025	rpc.blocking = true;
2026	rpc.rsp = &responses;
2027
2028	// set input arguments in RPC descriptor
2029	rpc.args[0] = (uint64_t)(intptr_t)inode;
2030	rpc.args[1] = (uint64_t)file_attr;
2031
2032	// register RPC request in remote RPC fifo
2033	rpc_send( cxy , &rpc );
2034
2035	// get output values from RPC descriptor
2036	*file_xp = (xptr_t)rpc.args[2];
2037	*error = (error_t)rpc.args[3];
2038
2039	#if DEBUG_RPC_VFS_FILE_CREATE
2040	cycle = (uint32_t)hal_get_cycles();
2041	if( cycle > DEBUG_RPC_VFS_FILE_CREATE )
2042	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
2043	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
2044	#endif
2045	}
2046
2047	////////////////////////////////////////////
2048	void rpc_vfs_file_create_server( xptr_t xp )
2049	{
2050	#if DEBUG_RPC_VFS_FILE_CREATE
2051	thread_t * this = CURRENT_THREAD;
2052	uint32_t cycle = (uint32_t)hal_get_cycles();
2053	if( cycle > DEBUG_RPC_VFS_FILE_CREATE )
2054	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
2055	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
2056	#endif
2057
2058	uint32_t file_attr;
2059	vfs_inode_t * inode;
2060	xptr_t file_xp;
2061	error_t error;
2062
2063	// get client cluster identifier and pointer on RPC descriptor
2064	cxy_t client_cxy = GET_CXY( xp );
2065	rpc_desc_t * desc = GET_PTR( xp );
2066
2067	// get arguments "file_attr" and "inode" from client RPC descriptor
2068	inode = (vfs_inode_t *)(intptr_t)hal_remote_l64( XPTR( client_cxy , &desc->args[0] ) );
2069	file_attr = (uint32_t) hal_remote_l64( XPTR( client_cxy , &desc->args[1] ) );
2070
2071	// call local kernel function
2072	error = vfs_file_create( inode,
2073	file_attr,
2074	&file_xp );
2075
2076	// set output arguments
2077	hal_remote_s64( XPTR( client_cxy , &desc->args[2] ) , (uint64_t)file_xp );
2078	hal_remote_s64( XPTR( client_cxy , &desc->args[3] ) , (uint64_t)error );
2079
2080	#if DEBUG_RPC_VFS_FILE_CREATE
2081	cycle = (uint32_t)hal_get_cycles();
2082	if( cycle > DEBUG_RPC_VFS_FILE_CREATE )
2083	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
2084	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
2085	#endif
2086	}
2087
2088	/////////////////////////////////////////////////////////////////////////////////////////
2089	// [15] RPC_VFS_FILE_DESTROY deprecated [AG] dec 2019
2090	/////////////////////////////////////////////////////////////////////////////////////////
2091	void rpc_vfs_file_destroy_client( cxy_t cxy,
2092	vfs_file_t * file )
2093	{
2094	#if DEBUG_RPC_VFS_FILE_DESTROY
2095	thread_t * this = CURRENT_THREAD;
2096	uint32_t cycle = (uint32_t)hal_get_cycles();
2097	if( cycle > DEBUG_RPC_VFS_FILE_DESTROY )
2098	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
2099	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
2100	#endif
2101
2102	uint32_t responses = 1;
2103
2104	// initialise RPC descriptor header
2105	rpc_desc_t rpc;
2106	rpc.index = RPC_VFS_FILE_DESTROY;
2107	rpc.blocking = true;
2108	rpc.rsp = &responses;
2109
2110	// set input arguments in RPC descriptor
2111	rpc.args[0] = (uint64_t)(intptr_t)file;
2112
2113	// register RPC request in remote RPC fifo
2114	rpc_send( cxy , &rpc );
2115
2116	#if DEBUG_RPC_VFS_FILE_DESTROY
2117	cycle = (uint32_t)hal_get_cycles();
2118	if( cycle > DEBUG_RPC_VFS_FILE_DESTROY )
2119	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
2120	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
2121	#endif
2122	}
2123
2124	/////////////////////////////////////////////
2125	void rpc_vfs_file_destroy_server( xptr_t xp )
2126	{
2127	#if DEBUG_RPC_VFS_FILE_DESTROY
2128	thread_t * this = CURRENT_THREAD;
2129	uint32_t cycle = (uint32_t)hal_get_cycles();
2130	if( cycle > DEBUG_RPC_VFS_FILE_DESTROY )
2131	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
2132	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
2133	#endif
2134
2135	vfs_file_t * file;
2136
2137	// get client cluster identifier and pointer on RPC descriptor
2138	cxy_t client_cxy = GET_CXY( xp );
2139	rpc_desc_t * desc = GET_PTR( xp );
2140
2141	// get arguments "dentry" from client RPC descriptor
2142	file = (vfs_file_t *)(intptr_t)hal_remote_l64( XPTR( client_cxy , &desc->args[0] ) );
2143
2144	// call local kernel function
2145	vfs_file_destroy( file );
2146
2147	#if DEBUG_RPC_VFS_FILE_DESTROY
2148	cycle = (uint32_t)hal_get_cycles();
2149	if( cycle > DEBUG_RPC_VFS_FILE_DESTROY )
2150	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
2151	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
2152	#endif
2153	}
2154
2155	/////////////////////////////////////////////////////////////////////////////////////////
2156	// [16] RPC_VFS_FS_GET_DENTRY deprecated [AG] dec 2019
2157	/////////////////////////////////////////////////////////////////////////////////////////
2158	void rpc_vfs_fs_new_dentry_client( cxy_t cxy,
2159	vfs_inode_t * parent_inode, // in
2160	char * name, // in
2161	xptr_t child_inode_xp, // in
2162	error_t * error ) // out
2163	{
2164	#if DEBUG_RPC_VFS_FS_NEW_DENTRY
2165	thread_t * this = CURRENT_THREAD;
2166	uint32_t cycle = (uint32_t)hal_get_cycles();
2167	if( cycle > DEBUG_RPC_VFS_FS_NEW_DENTRY )
2168	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
2169	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
2170	#endif
2171
2172	uint32_t responses = 1;
2173
2174	// initialise RPC descriptor header
2175	rpc_desc_t rpc;
2176	rpc.index = RPC_VFS_FS_NEW_DENTRY;
2177	rpc.blocking = true;
2178	rpc.rsp = &responses;
2179
2180	// set input arguments in RPC descriptor
2181	rpc.args[0] = (uint64_t)(intptr_t)parent_inode;
2182	rpc.args[1] = (uint64_t)(intptr_t)name;
2183	rpc.args[2] = (uint64_t)child_inode_xp;
2184
2185	// register RPC request in remote RPC fifo
2186	rpc_send( cxy , &rpc );
2187
2188	// get output values from RPC descriptor
2189	*error = (error_t)rpc.args[3];
2190
2191	#if DEBUG_RPC_VFS_FS_NEW_DENTRY
2192	cycle = (uint32_t)hal_get_cycles();
2193	if( cycle > DEBUG_RPC_VFS_FS_NEW_DENTRY )
2194	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
2195	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
2196	#endif
2197	}
2198
2199	//////////////////////////////////////////////
2200	void rpc_vfs_fs_new_dentry_server( xptr_t xp )
2201	{
2202	#if DEBUG_RPC_VFS_FS_NEW_DENTRY
2203	thread_t * this = CURRENT_THREAD;
2204	uint32_t cycle = (uint32_t)hal_get_cycles();
2205	if( cycle > DEBUG_RPC_VFS_FS_NEW_DENTRY )
2206	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
2207	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
2208	#endif
2209
2210	error_t error;
2211	vfs_inode_t * parent;
2212	xptr_t child_xp;
2213	char * name;
2214
2215	char name_copy[CONFIG_VFS_MAX_NAME_LENGTH];
2216
2217	// get client cluster identifier and pointer on RPC descriptor
2218	cxy_t client_cxy = GET_CXY( xp );
2219	rpc_desc_t * desc = GET_PTR( xp );
2220
2221	// get arguments "parent", "name", and "child_xp"
2222	parent = (vfs_inode_t*)(intptr_t)hal_remote_l64(XPTR(client_cxy , &desc->args[0]));
2223	name = (char*)(intptr_t) hal_remote_l64(XPTR(client_cxy , &desc->args[1]));
2224	child_xp = (xptr_t) hal_remote_l64(XPTR(client_cxy , &desc->args[2]));
2225
2226	// get name local copy
2227	hal_remote_strcpy( XPTR( local_cxy , name_copy ) ,
2228	XPTR( client_cxy , name ) );
2229
2230	// call the kernel function
2231	error = vfs_fs_new_dentry( parent , name_copy , child_xp );
2232
2233	// set output argument
2234	hal_remote_s64( XPTR( client_cxy , &desc->args[3] ) , (uint64_t)error );
2235
2236	#if DEBUG_RPC_VFS_FS_NEW_DENTRY
2237	cycle = (uint32_t)hal_get_cycles();
2238	if( cycle > DEBUG_RPC_VFS_FS_NEW_DENTRY )
2239	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
2240	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
2241	#endif
2242	}
2243
2244	/////////////////////////////////////////////////////////////////////////////////////////
2245	// [17] RPC_VFS_FS_ADD_DENTRY deprecated [AG] dec 2019
2246	/////////////////////////////////////////////////////////////////////////////////////////
2247	void rpc_vfs_fs_add_dentry_client( cxy_t cxy,
2248	vfs_inode_t * parent, // in
2249	vfs_dentry_t * dentry, // in
2250	error_t * error ) // out
2251	{
2252	#if DEBUG_RPC_VFS_FS_ADD_DENTRY
2253	thread_t * this = CURRENT_THREAD;
2254	uint32_t cycle = (uint32_t)hal_get_cycles();
2255	if( cycle > DEBUG_RPC_VFS_FS_ADD_DENTRY )
2256	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
2257	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
2258	#endif
2259
2260	uint32_t responses = 1;
2261
2262	// initialise RPC descriptor header
2263	rpc_desc_t rpc;
2264	rpc.index = RPC_VFS_FS_ADD_DENTRY;
2265	rpc.blocking = true;
2266	rpc.rsp = &responses;
2267
2268	// set input arguments in RPC descriptor
2269	rpc.args[0] = (uint64_t)(intptr_t)parent;
2270	rpc.args[1] = (uint64_t)(intptr_t)dentry;
2271
2272	// register RPC request in remote RPC fifo
2273	rpc_send( cxy , &rpc );
2274
2275	// get output values from RPC descriptor
2276	*error = (error_t)rpc.args[2];
2277
2278	#if DEBUG_RPC_VFS_FS_ADD_DENTRY
2279	cycle = (uint32_t)hal_get_cycles();
2280	if( cycle > DEBUG_RPC_VFS_FS_ADD_DENTRY )
2281	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
2282	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
2283	#endif
2284	}
2285
2286	//////////////////////////////////////////////
2287	void rpc_vfs_fs_add_dentry_server( xptr_t xp )
2288	{
2289	#if DEBUG_RPC_VFS_FS_ADD_DENTRY
2290	thread_t * this = CURRENT_THREAD;
2291	uint32_t cycle = (uint32_t)hal_get_cycles();
2292	if( cycle > DEBUG_RPC_VFS_FS_ADD_DENTRY )
2293	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
2294	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
2295	#endif
2296
2297	error_t error;
2298	vfs_inode_t * parent;
2299	vfs_dentry_t * dentry;
2300
2301	// get client cluster identifier and pointer on RPC descriptor
2302	cxy_t client_cxy = GET_CXY( xp );
2303	rpc_desc_t * desc = GET_PTR( xp );
2304
2305	// get input arguments
2306	parent = (vfs_inode_t*)(intptr_t) hal_remote_l64(XPTR(client_cxy , &desc->args[0]));
2307	dentry = (vfs_dentry_t*)(intptr_t)hal_remote_l64(XPTR(client_cxy , &desc->args[1]));
2308
2309	// call the kernel function
2310	error = vfs_fs_add_dentry( parent , dentry );
2311
2312	// set output argument
2313	hal_remote_s64( XPTR( client_cxy , &desc->args[2] ) , (uint64_t)error );
2314
2315	#if DEBUG_RPC_VFS_FS_ADD_DENTRY
2316	cycle = (uint32_t)hal_get_cycles();
2317	if( cycle > DEBUG_RPC_VFS_FS_ADD_DENTRY )
2318	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
2319	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
2320	#endif
2321	}
2322
2323	/////////////////////////////////////////////////////////////////////////////////////////
2324	// [18] RPC_VFS_FS_REMOVE_DENTRY deprecated [AG] dec 2019
2325	/////////////////////////////////////////////////////////////////////////////////////////
2326	void rpc_vfs_fs_remove_dentry_client( cxy_t cxy,
2327	vfs_inode_t * parent, // in
2328	vfs_dentry_t * dentry, // in
2329	error_t * error ) // out
2330	{
2331	#if DEBUG_RPC_VFS_FS_REMOVE_DENTRY
2332	thread_t * this = CURRENT_THREAD;
2333	uint32_t cycle = (uint32_t)hal_get_cycles();
2334	if( cycle > DEBUG_RPC_VFS_FS_REMOVE_DENTRY )
2335	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
2336	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
2337	#endif
2338
2339	uint32_t responses = 1;
2340
2341	// initialise RPC descriptor header
2342	rpc_desc_t rpc;
2343	rpc.index = RPC_VFS_FS_REMOVE_DENTRY;
2344	rpc.blocking = true;
2345	rpc.rsp = &responses;
2346
2347	// set input arguments in RPC descriptor
2348	rpc.args[0] = (uint64_t)(intptr_t)parent;
2349	rpc.args[1] = (uint64_t)(intptr_t)dentry;
2350
2351	// register RPC request in remote RPC fifo
2352	rpc_send( cxy , &rpc );
2353
2354	// get output values from RPC descriptor
2355	*error = (error_t)rpc.args[2];
2356
2357	#if DEBUG_RPC_VFS_FS_REMOVE_DENTRY
2358	cycle = (uint32_t)hal_get_cycles();
2359	if( cycle > DEBUG_RPC_VFS_FS_REMOVE_DENTRY )
2360	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
2361	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
2362	#endif
2363	}
2364
2365	/////////////////////////////////////////////////
2366	void rpc_vfs_fs_remove_dentry_server( xptr_t xp )
2367	{
2368	#if DEBUG_RPC_VFS_FS_REMOVE_DENTRY
2369	thread_t * this = CURRENT_THREAD;
2370	uint32_t cycle = (uint32_t)hal_get_cycles();
2371	if( cycle > DEBUG_RPC_VFS_FS_REMOVE_DENTRY )
2372	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
2373	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
2374	#endif
2375
2376	error_t error;
2377	vfs_inode_t * parent;
2378	vfs_dentry_t * dentry;
2379
2380	// get client cluster identifier and pointer on RPC descriptor
2381	cxy_t client_cxy = GET_CXY( xp );
2382	rpc_desc_t * desc = GET_PTR( xp );
2383
2384	// get input arguments
2385	parent = (vfs_inode_t*)(intptr_t) hal_remote_l64(XPTR(client_cxy , &desc->args[0]));
2386	dentry = (vfs_dentry_t*)(intptr_t)hal_remote_l64(XPTR(client_cxy , &desc->args[1]));
2387
2388	// call the kernel function
2389	error = vfs_fs_remove_dentry( parent , dentry );
2390
2391	// set output argument
2392	hal_remote_s64( XPTR( client_cxy , &desc->args[2] ) , (uint64_t)error );
2393
2394	#if DEBUG_RPC_VFS_FS_REMOVE_DENTRY
2395	cycle = (uint32_t)hal_get_cycles();
2396	if( cycle > DEBUG_RPC_VFS_FS_REMOVE_DENTRY )
2397	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
2398	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
2399	#endif
2400	}
2401
2402	/////////////////////////////////////////////////////////////////////////////////////////
2403	// [19] RPC_VFS_INODE_LOAD_ALL_PAGES deprecated [AG] dec 2019
2404	/////////////////////////////////////////////////////////////////////////////////////////
2405	void rpc_vfs_inode_load_all_pages_client( cxy_t cxy,
2406	vfs_inode_t * inode, // in
2407	error_t * error ) // out
2408	{
2409	#if DEBUG_RPC_VFS_INODE_LOAD_ALL_PAGES
2410	thread_t * this = CURRENT_THREAD;
2411	uint32_t cycle = (uint32_t)hal_get_cycles();
2412	if( cycle > DEBUG_RPC_VFS_INODE_LOAD_ALL_PAGES )
2413	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
2414	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
2415	#endif
2416
2417	uint32_t responses = 1;
2418
2419	// initialise RPC descriptor header
2420	rpc_desc_t rpc;
2421	rpc.index = RPC_VFS_INODE_LOAD_ALL_PAGES;
2422	rpc.blocking = true;
2423	rpc.rsp = &responses;
2424
2425	// set input arguments in RPC descriptor
2426	rpc.args[0] = (uint64_t)(intptr_t)inode;
2427
2428	// register RPC request in remote RPC fifo
2429	rpc_send( cxy , &rpc );
2430
2431	// get output values from RPC descriptor
2432	*error = (error_t)rpc.args[1];
2433
2434	#if DEBUG_RPC_VFS_INODE_LOAD_ALL_PAGES
2435	cycle = (uint32_t)hal_get_cycles();
2436	if( cycle > DEBUG_RPC_VFS_INODE_LOAD_ALL_PAGES )
2437	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
2438	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
2439	#endif
2440	}
2441
2442	/////////////////////////////////////////////////////
2443	void rpc_vfs_inode_load_all_pages_server( xptr_t xp )
2444	{
2445	#if DEBUG_RPC_VFS_INODE_LOAD_ALL_PAGES
2446	thread_t * this = CURRENT_THREAD;
2447	uint32_t cycle = (uint32_t)hal_get_cycles();
2448	if( cycle > DEBUG_RPC_VFS_INODE_LOAD_ALL_PAGES )
2449	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
2450	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
2451	#endif
2452
2453	error_t error;
2454	vfs_inode_t * inode;
2455
2456	// get client cluster identifier and pointer on RPC descriptor
2457	cxy_t client_cxy = GET_CXY( xp );
2458	rpc_desc_t * desc = GET_PTR( xp );
2459
2460	// get input argument
2461	inode = (vfs_inode_t*)(intptr_t)hal_remote_l64(XPTR(client_cxy , &desc->args[0]));
2462
2463	// call the kernel function
2464	error = vfs_inode_load_all_pages( inode );
2465
2466	// set output argument
2467	hal_remote_s64( XPTR( client_cxy , &desc->args[1] ) , (uint64_t)error );
2468
2469	#if DEBUG_RPC_VFS_INODE_LOAD_ALL_PAGES
2470	cycle = (uint32_t)hal_get_cycles();
2471	if( cycle > DEBUG_RPC_VFS_INODE_LOAD_ALL_PAGES )
2472	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
2473	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
2474	#endif
2475	}
2476
2477	/////////////////////////////////////////////////////////////////////////////////////////
2478	// [20] RPC_VMM_GET_VSEG deprecated [AG] sept 2019
2479	/////////////////////////////////////////////////////////////////////////////////////////
2480	void rpc_vmm_get_vseg_client( cxy_t cxy,
2481	process_t * process, // in
2482	intptr_t vaddr, // in
2483	xptr_t * vseg_xp, // out
2484	error_t * error ) // out
2485	{
2486	#if DEBUG_RPC_VMM_GET_VSEG
2487	thread_t * this = CURRENT_THREAD;
2488	uint32_t cycle = (uint32_t)hal_get_cycles();
2489	if( cycle > DEBUG_RPC_VMM_GET_VSEG )
2490	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
2491	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
2492	#endif
2493
2494	uint32_t responses = 1;
2495
2496	// initialise RPC descriptor header
2497	rpc_desc_t rpc;
2498	rpc.index = RPC_VMM_GET_VSEG;
2499	rpc.blocking = true;
2500	rpc.rsp = &responses;
2501
2502	// set input arguments in RPC descriptor
2503	rpc.args[0] = (uint64_t)(intptr_t)process;
2504	rpc.args[1] = (uint64_t)vaddr;
2505
2506	// register RPC request in remote RPC fifo
2507	rpc_send( cxy , &rpc );
2508
2509	// get output argument from rpc descriptor
2510	*vseg_xp = rpc.args[2];
2511	*error = (error_t)rpc.args[3];
2512
2513	#if DEBUG_RPC_VMM_GET_VSEG
2514	cycle = (uint32_t)hal_get_cycles();
2515	if( cycle > DEBUG_RPC_VMM_GET_VSEG )
2516	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
2517	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
2518	#endif
2519	}
2520
2521	/////////////////////////////////////////
2522	void rpc_vmm_get_vseg_server( xptr_t xp )
2523	{
2524	#if DEBUG_RPC_VMM_GET_VSEG
2525	thread_t * this = CURRENT_THREAD;
2526	uint32_t cycle = (uint32_t)hal_get_cycles();
2527	if( cycle > DEBUG_RPC_VMM_GET_VSEG )
2528	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
2529	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
2530	#endif
2531
2532	process_t * process;
2533	intptr_t vaddr;
2534	vseg_t * vseg_ptr;
2535	xptr_t vseg_xp;
2536	error_t error;
2537
2538	// get client cluster identifier and pointer on RPC descriptor
2539	cxy_t client_cxy = GET_CXY( xp );
2540	rpc_desc_t * desc = GET_PTR( xp );
2541
2542	// get input argument from client RPC descriptor
2543	process = (process_t *)(intptr_t)hal_remote_l64( XPTR( client_cxy , &desc->args[0] ) );
2544	vaddr = (intptr_t)hal_remote_l64( XPTR( client_cxy , &desc->args[1] ) );
2545
2546	// call local kernel function
2547	error = vmm_get_vseg( process , vaddr , &vseg_ptr );
2548
2549	// set output arguments to client RPC descriptor
2550	vseg_xp = XPTR( local_cxy , vseg_ptr );
2551	hal_remote_s64( XPTR( client_cxy , &desc->args[2] ) , (uint64_t)vseg_xp );
2552	hal_remote_s64( XPTR( client_cxy , &desc->args[3] ) , (uint64_t)error );
2553
2554	#if DEBUG_RPC_VMM_GET_VSEG
2555	cycle = (uint32_t)hal_get_cycles();
2556	if( cycle > DEBUG_RPC_VMM_GET_VSEG )
2557	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
2558	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
2559	#endif
2560	}
2561
2562	/////////////////////////////////////////////////////////////////////////////////////////
2563	// [22] RPC_KCM_ALLOC deprecated [AG] sept 2019
2564	/////////////////////////////////////////////////////////////////////////////////////////
2565	void rpc_kcm_alloc_client( cxy_t cxy,
2566	uint32_t kmem_type, // in
2567	xptr_t * buf_xp ) // out
2568	{
2569	#if DEBUG_RPC_KCM_ALLOC
2570	thread_t * this = CURRENT_THREAD;
2571	uint32_t cycle = (uint32_t)hal_get_cycles();
2572	if( cycle > DEBUG_RPC_KCM_ALLOC )
2573	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
2574	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
2575	#endif
2576
2577	uint32_t responses = 1;
2578
2579	// initialise RPC descriptor header
2580	rpc_desc_t rpc;
2581	rpc.index = RPC_KCM_ALLOC;
2582	rpc.blocking = true;
2583	rpc.rsp = &responses;
2584
2585	// set input arguments in RPC descriptor
2586	rpc.args[0] = (uint64_t)kmem_type;
2587
2588	// register RPC request in remote RPC fifo
2589	rpc_send( cxy , &rpc );
2590
2591	// get output arguments from RPC descriptor
2592	*buf_xp = (xptr_t)rpc.args[1];
2593
2594	#if DEBUG_RPC_KCM_ALLOC
2595	cycle = (uint32_t)hal_get_cycles();
2596	if( cycle > DEBUG_RPC_KCM_ALLOC )
2597	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
2598	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
2599	#endif
2600	}
2601
2602	//////////////////////////////////////
2603	void rpc_kcm_alloc_server( xptr_t xp )
2604	{
2605	#if DEBUG_RPC_KCM_ALLOC
2606	thread_t * this = CURRENT_THREAD;
2607	uint32_t cycle = (uint32_t)hal_get_cycles();
2608	if( cycle > DEBUG_RPC_KCM_ALLOC )
2609	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
2610	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
2611	#endif
2612
2613	// get client cluster identifier and pointer on RPC descriptor
2614	cxy_t client_cxy = GET_CXY( xp );
2615	rpc_desc_t * desc = GET_PTR( xp );
2616
2617	// get input argument "kmem_type" from client RPC descriptor
2618	uint32_t kmem_type = (uint32_t)hal_remote_l64( XPTR( client_cxy , &desc->args[0] ) );
2619
2620	// allocates memory for kcm
2621	kmem_req_t req;
2622	req.type = kmem_type;
2623	req.flags = AF_ZERO;
2624	void * buf_ptr = kmem_alloc( &req );
2625
2626	// set output argument
2627	xptr_t buf_xp = XPTR( local_cxy , buf_ptr );
2628	hal_remote_s64( XPTR( client_cxy , &desc->args[1] ) , (uint64_t)buf_xp );
2629
2630	#if DEBUG_RPC_KCM_ALLOC
2631	cycle = (uint32_t)hal_get_cycles();
2632	if( cycle > DEBUG_RPC_KCM_ALLOC )
2633	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
2634	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
2635	#endif
2636	}
2637
2638	/////////////////////////////////////////////////////////////////////////////////////////
2639	// [23] RPC_KCM_FREE deprecated [AG] sept 2019
2640	/////////////////////////////////////////////////////////////////////////////////////////
2641	void rpc_kcm_free_client( cxy_t cxy,
2642	void * buf, // in
2643	uint32_t kmem_type ) // in
2644	{
2645	#if DEBUG_RPC_KCM_FREE
2646	thread_t * this = CURRENT_THREAD;
2647	uint32_t cycle = (uint32_t)hal_get_cycles();
2648	if( cycle > DEBUG_RPC_KCM_FREE )
2649	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
2650	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
2651	#endif
2652
2653	uint32_t responses = 1;
2654
2655	// initialise RPC descriptor header
2656	rpc_desc_t rpc;
2657	rpc.index = RPC_KCM_FREE;
2658	rpc.blocking = true;
2659	rpc.rsp = &responses;
2660
2661	// set input arguments in RPC descriptor
2662	rpc.args[0] = (uint64_t)(intptr_t)buf;
2663	rpc.args[1] = (uint64_t)kmem_type;
2664
2665	// register RPC request in remote RPC fifo
2666	rpc_send( cxy , &rpc );
2667
2668	#if DEBUG_RPC_KCM_FREE
2669	cycle = (uint32_t)hal_get_cycles();
2670	if( cycle > DEBUG_RPC_KCM_FREE )
2671	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
2672	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
2673	#endif
2674	}
2675
2676	/////////////////////////////////////
2677	void rpc_kcm_free_server( xptr_t xp )
2678	{
2679	#if DEBUG_RPC_KCM_FREE
2680	thread_t * this = CURRENT_THREAD;
2681	uint32_t cycle = (uint32_t)hal_get_cycles();
2682	if( cycle > DEBUG_RPC_KCM_FREE )
2683	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
2684	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
2685	#endif
2686
2687	// get client cluster identifier and pointer on RPC descriptor
2688	cxy_t client_cxy = GET_CXY( xp );
2689	rpc_desc_t * desc = GET_PTR( xp );
2690
2691	// get input arguments "buf" and "kmem_type" from client RPC descriptor
2692	void * buf = (void *)(intptr_t)hal_remote_l64( XPTR( client_cxy , &desc->args[0] ) );
2693	uint32_t kmem_type = (uint32_t)hal_remote_l64( XPTR( client_cxy , &desc->args[1] ) );
2694
2695	// releases memory
2696	kmem_req_t req;
2697	req.type = kmem_type;
2698	req.ptr = buf;
2699	kmem_free( &req );
2700
2701	#if DEBUG_RPC_KCM_FREE
2702	cycle = (uint32_t)hal_get_cycles();
2703	if( cycle > DEBUG_RPC_KCM_FREE )
2704	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
2705	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
2706	#endif
2707	}
2708
2709	/////////////////////////////////////////////////////////////////////////////////////////
2710	// [24] Marshaling functions attached to RPC_MAPPER_SYNC
2711	/////////////////////////////////////////////////////////////////////////////////////////
2712	void rpc_mapper_sync_client( cxy_t cxy,
2713	struct mapper_s * mapper,
2714	error_t * error )
2715	{
2716	#if DEBUG_RPC_MAPPER_SYNC
2717	thread_t * this = CURRENT_THREAD;
2718	uint32_t cycle = (uint32_t)hal_get_cycles();
2719	if( cycle > DEBUG_RPC_MAPPER_SYNC )
2720	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
2721	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
2722	#endif
2723
2724	uint32_t responses = 1;
2725
2726	// initialise RPC descriptor header
2727	rpc_desc_t rpc;
2728	rpc.index = RPC_MAPPER_SYNC;
2729	rpc.blocking = true;
2730	rpc.rsp = &responses;
2731
2732	// set input arguments in RPC descriptor
2733	rpc.args[0] = (uint64_t)(intptr_t)mapper;
2734
2735	// register RPC request in remote RPC fifo
2736	rpc_send( cxy , &rpc );
2737
2738	// get output values from RPC descriptor
2739	*error = (error_t)rpc.args[1];
2740
2741	#if DEBUG_RPC_MAPPER_SYNC
2742	cycle = (uint32_t)hal_get_cycles();
2743	if( cycle > DEBUG_RPC_MAPPER_SYNC )
2744	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
2745	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
2746	#endif
2747	}
2748
2749	////////////////////////////////////////
2750	void rpc_mapper_sync_server( xptr_t xp )
2751	{
2752	#if DEBUG_RPC_MAPPER_SYNC
2753	thread_t * this = CURRENT_THREAD;
2754	uint32_t cycle = (uint32_t)hal_get_cycles();
2755	if( cycle > DEBUG_RPC_MAPPER_SYNC )
2756	printk("\n[%s] thread[%x,%x] on core %d enter / cycle %d\n",
2757	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
2758	#endif
2759
2760	mapper_t * mapper;
2761	error_t error;
2762
2763	// get client cluster identifier and pointer on RPC descriptor
2764	cxy_t client_cxy = GET_CXY( xp );
2765	rpc_desc_t * desc = GET_PTR( xp );
2766
2767	// get arguments from client RPC descriptor
2768	mapper = (mapper_t *)(intptr_t)hal_remote_l64( XPTR( client_cxy , &desc->args[0] ) );
2769
2770	// call local kernel function
2771	error = mapper_sync( mapper );
2772
2773	// set output argument to client RPC descriptor
2774	hal_remote_s64( XPTR( client_cxy , &desc->args[1] ) , (uint64_t)error );
2775
2776	#if DEBUG_RPC_MAPPER_SYNC
2777	cycle = (uint32_t)hal_get_cycles();
2778	if( cycle > DEBUG_RPC_MAPPER_SYNC )
2779	printk("\n[%s] thread[%x,%x] on core %d exit / cycle %d\n",
2780	__FUNCTION__, this->process->pid, this->trdid, this->core->lid , cycle );
2781	#endif
2782	}
2783
2784	*/
2785
2786
2787
2788	/*
2789	////////////////////////////////////////////////////
2790	void rpc_fbf_display_client( cxy_t cxy,
2791	xptr_t window_xp,
2792	uint32_t cores,
2793	error_t * error )
2794	{
2795	#if DEBUG_RPC_FBF_DISPLAY
2796	uint32_t cycle = (uint32_t)hal_get_cycles();
2797	thread_t * this = CURRENT_THREAD;
2798	if( DEBUG_RPC_FBF_DISPLAY < cycle )
2799	printk("\n[%s] thread[%x,%x] on core %d : enter / cycle %d\n",
2800	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
2801	#endif
2802
2803	uint32_t responses = 1;
2804	rpc_desc_t rpc;
2805
2806	// initialise RPC descriptor header
2807	rpc.index = RPC_FBF_DISPLAY;
2808	rpc.blocking = true;
2809	rpc.rsp = &responses;
2810
2811	// set input arguments in RPC descriptor
2812	rpc.args[0] = (uint64_t)window_xp;
2813	rpc.args[1] = (uint64_t)cores;
2814
2815	// register RPC request in remote RPC fifo
2816	rpc_send( cxy , &rpc );
2817
2818	// get output argument from RPC descriptor
2819	*error = (error_t)rpc.args[2];
2820
2821	#if DEBUG_RPC_FBF_DISPLAY
2822	cycle = (uint32_t)hal_get_cycles();
2823	if( DEBUG_RPC_FBF_DISPLAY < cycle )
2824	printk("\n[%s] thread[%x,%x] on core %d : exit / cycle %d\n",
2825	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
2826	#endif
2827	}
2828
2829	////////////////////////////////////////
2830	void rpc_fbf_display_server( xptr_t xp )
2831	{
2832	// get client cluster identifier and pointer on RPC descriptor
2833	cxy_t client_cxy = GET_CXY( xp );
2834	rpc_desc_t * desc = GET_PTR( xp );
2835
2836	// get arguments from RPC descriptor
2837	xptr_t window_xp = (xptr_t )hal_remote_l64( XPTR(client_cxy , &desc->args[0]) );
2838	uint32_t ncores = (uint32_t)hal_remote_l64( XPTR(client_cxy , &desc->args[1]) );
2839
2840	#if DEBUG_RPC_FBF_DISPLAY
2841	uint32_t cycle = (uint32_t)hal_get_cycles();
2842	thread_t * this = CURRENT_THREAD;
2843	if( DEBUG_RPC_FBF_DISPLAY < cycle )
2844	printk("\n[%s] thread[%x,%x] on core %d : enter / cycle %d\n",
2845	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
2846	#endif
2847
2848	// call relevant kernel function
2849	error_t error = dev_fbf_parallel_display( window_xp , ncores );
2850
2851	// WARNING : for parallel RPCs, the return error argument is shared
2852	hal_remote_atomic_or( XPTR( client_cxy , &desc->args[2] ) , error );
2853
2854	#if DEBUG_RPC_FBF_DISPLAY
2855	cycle = (uint32_t)hal_get_cycles();
2856	if( DEBUG_RPC_FBF_DISPLAY < cycle )
2857	printk("\n[%s] thread[%x,%x] on core %d : exit / cycle %d\n",
2858	__FUNCTION__, this->process->pid, this->trdid, this->core->lid, cycle );
2859	#endif
2860	}
2861	*/
2862
2863

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source: trunk/kernel/kern/rpc.c @ 687

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