source: trunk/kernel/kern/rpc.c @ 457

Last change on this file since 457 was 457, checked in by alain, 6 years ago

This version modifies the exec syscall and fixes a large number of small bugs.
The version number has been updated (0.1)

File size: 78.9 KB
RevLine 
[1]1/*
[437]2 * rpc.c - RPC operations implementation.
[1]3 *
[437]4 * Author    Alain Greiner (2016,2017,2018)
[1]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
[14]24#include <kernel_config.h>
[457]25#include <hal_kernel_types.h>
[1]26#include <hal_atomic.h>
27#include <hal_remote.h>
28#include <hal_irqmask.h>
29#include <hal_special.h>
30#include <printk.h>
31#include <remote_sem.h>
32#include <core.h>
33#include <mapper.h>
[5]34#include <chdev.h>
[1]35#include <bits.h>
36#include <thread.h>
37#include <cluster.h>
38#include <process.h>
39#include <vfs.h>
40#include <fatfs.h>
41#include <rpc.h>
42
[433]43
[1]44/////////////////////////////////////////////////////////////////////////////////////////
45//      array of function pointers  (must be consistent with enum in rpc.h)
46/////////////////////////////////////////////////////////////////////////////////////////
47
48rpc_server_t * rpc_server[RPC_MAX_INDEX] =
49{
50    &rpc_pmem_get_pages_server,         // 0
[409]51    &rpc_pmem_release_pages_server,     // 1
[433]52    &rpc_undefined,                     // 2    unused slot
[409]53    &rpc_process_make_fork_server,      // 3
[433]54    &rpc_undefined,                     // 4    unused slot
[435]55    &rpc_undefined,                     // 5    unused slot
[409]56    &rpc_thread_user_create_server,     // 6
57    &rpc_thread_kernel_create_server,   // 7
[436]58    &rpc_undefined,                     // 8    unused slot       
[409]59    &rpc_process_sigaction_server,      // 9
[1]60
61    &rpc_vfs_inode_create_server,       // 10 
62    &rpc_vfs_inode_destroy_server,      // 11 
63    &rpc_vfs_dentry_create_server,      // 12 
64    &rpc_vfs_dentry_destroy_server,     // 13 
[23]65    &rpc_vfs_file_create_server,        // 14
66    &rpc_vfs_file_destroy_server,       // 15
[238]67    &rpc_vfs_inode_load_server,         // 16
68    &rpc_vfs_mapper_load_all_server,    // 17
69    &rpc_fatfs_get_cluster_server,      // 18
[433]70    &rpc_undefined,                     // 19   unused slot
[1]71
[389]72    &rpc_vmm_get_vseg_server,           // 20
[1]73    &rpc_vmm_get_pte_server,            // 21
[23]74    &rpc_kcm_alloc_server,              // 22
75    &rpc_kcm_free_server,               // 23
[265]76    &rpc_mapper_move_buffer_server,     // 24
[313]77    &rpc_mapper_get_page_server,        // 25
[407]78    &rpc_vmm_create_vseg_server,        // 26
[450]79    &rpc_undefined,                     // 27   unused slot
[408]80    &rpc_vmm_set_cow_server,            // 28
[428]81    &rpc_vmm_display_server,            // 29
[1]82};
83
84//////////////////////////////////////////////
85void __attribute__((noinline)) rpc_undefined()
86{
[428]87        assert( false , __FUNCTION__ , "called in cluster %x", local_cxy );
[1]88}
89
[409]90/***************************************************************************************/
91/************ Generic functions supporting RPCs : client side **************************/
92/***************************************************************************************/
93
94///////////////////////////////////////
95void rpc_send( cxy_t        server_cxy, 
[416]96               rpc_desc_t * rpc )
[409]97{
[438]98    lid_t              server_core_lid;
99    lid_t              client_core_lid;
100    volatile error_t   full;
101    thread_t         * this;
[409]102
[457]103    full            = 0;
104    this            = CURRENT_THREAD;
105    client_core_lid = this->core->lid;
106
[438]107#if DEBUG_RPC_CLIENT_GENERIC
[436]108uint32_t cycle = (uint32_t)hal_get_cycles();
[438]109if( DEBUG_RPC_CLIENT_GENERIC < cycle ) 
[457]110printk("\n[DBG] %s : thread %x in process %x enter for rpc[%d] / cycle %d\n",
111__FUNCTION__, this->trdid, this->process->pid, rpc->index, cycle );
[436]112#endif
[409]113
[440]114    // select a server_core : use client core index if possible / core 0 otherwise
[457]115    if( client_core_lid < hal_remote_lw( XPTR( server_cxy , &LOCAL_CLUSTER->cores_nr ) ) )
[438]116    {
117        server_core_lid = client_core_lid;
118    }
119    else
120    {   
121        server_core_lid = 0;
122    }
123
124    // register client_thread pointer and client_core lid in RPC descriptor
[436]125    rpc->thread = this;
[438]126    rpc->lid    = client_core_lid;
[409]127
[438]128    // build extended pointer on the RPC descriptor
[409]129        xptr_t   desc_xp = XPTR( local_cxy , rpc );
130
[436]131    // get local pointer on rpc_fifo in remote cluster,
[440]132    remote_fifo_t * rpc_fifo = &LOCAL_CLUSTER->rpc_fifo[server_core_lid];
[409]133
[436]134        // post RPC in remote fifo / deschedule and retry if fifo full
[409]135    do
136    { 
[436]137        full = remote_fifo_put_item( XPTR( server_cxy , rpc_fifo ), (uint64_t )desc_xp );
138            if ( full ) 
[409]139        {
140            printk("\n[WARNING] %s : cluster %x cannot post RPC to cluster %x\n",
141            __FUNCTION__ , local_cxy , server_cxy );
142
[436]143            // deschedule without blocking
144            sched_yield("RPC fifo full");
[409]145        }
146    }
[436]147    while( full );
[409]148 
149    hal_fence();
[457]150
151#if DEBUG_RPC_CLIENT_GENERIC
152cycle = (uint32_t)hal_get_cycles();
153if( DEBUG_RPC_CLIENT_GENERIC < cycle ) 
154printk("\n[DBG] %s : thread %x in process %x / rpc[%d] / rpc_ptr %x / cycle %d\n",
155__FUNCTION__, this->trdid, this->process->pid, rpc->index, rpc, cycle );
156#endif
[409]157       
[457]158   // send IPI to the selected server core
159   dev_pic_send_ipi( server_cxy , server_core_lid );
[409]160
[416]161    // wait RPC completion before returning if blocking RPC
[409]162    // - busy waiting policy during kernel_init, or if threads cannot yield
163    // - block and deschedule in all other cases
[416]164    if ( rpc->blocking )
[409]165    {
166        if( (this->type == THREAD_IDLE) || (thread_can_yield() == false) ) // busy waiting
167        {
168
[438]169#if DEBUG_RPC_CLIENT_GENERIC
[436]170cycle = (uint32_t)hal_get_cycles();
[438]171if( DEBUG_RPC_CLIENT_GENERIC < cycle ) 
[457]172printk("\n[DBG] %s : thread %x in process %x busy waiting for rpc[%d] / cycle %d\n",
173__FUNCTION__, this->trdid, this->process->pid, rpc->index , cycle );
[436]174#endif
[409]175
[438]176            while( rpc->responses ) hal_fixed_delay( 100 );
[409]177   
[438]178#if DEBUG_RPC_CLIENT_GENERIC
[436]179cycle = (uint32_t)hal_get_cycles();
[438]180if( DEBUG_RPC_CLIENT_GENERIC < cycle ) 
[457]181printk("\n[DBG] %s : thread %x in process %x resumes for rpc[%d] / cycle %d\n",
182__FUNCTION__, this->trdid, this->process->pid, rpc->index, cycle );
[436]183#endif
[409]184        } 
[436]185        else                                                         // block & deschedule
[409]186        {
187
[438]188#if DEBUG_RPC_CLIENT_GENERIC
[436]189cycle = (uint32_t)hal_get_cycles();
[438]190if( DEBUG_RPC_CLIENT_GENERIC < cycle ) 
[457]191printk("\n[DBG] %s : thread %x in process %x blocks & deschedules for rpc[%d] / cycle %d\n",
192__FUNCTION__, this->trdid, this->process->pid, rpc->index , cycle );
[436]193#endif
194            thread_block( XPTR( local_cxy , this ) , THREAD_BLOCKED_RPC );
195            sched_yield("blocked on RPC");
[409]196
[438]197#if DEBUG_RPC_CLIENT_GENERIC
[436]198cycle = (uint32_t)hal_get_cycles();
[438]199if( DEBUG_RPC_CLIENT_GENERIC < cycle ) 
[457]200printk("\n[DBG] %s : thread %x in process %x resumes for rpc[%d] / cycle %d\n",
201__FUNCTION__, this->trdid, this->process->pid, rpc->index, cycle );
[436]202#endif
[409]203        }
204
205        // check response available
[438]206        assert( (rpc->responses == 0) , __FUNCTION__, "illegal RPC response\n" );
[409]207    }
[438]208    else  // non blocking RPC
[436]209    {
210
[438]211#if DEBUG_RPC_CLIENT_GENERIC
[436]212cycle = (uint32_t)hal_get_cycles();
[438]213if( DEBUG_RPC_CLIENT_GENERIC < cycle ) 
[457]214printk("\n[DBG] %s : thread %x in process %x returns for non blocking rpc[%d] / cycle %d\n",
215__FUNCTION__, this->trdid, this->process->pid, rpc->index, cycle );
[436]216#endif
217
218    }
[409]219}  // end rpc_send()
220
221
222/***************************************************************************************/
223/************ Generic functions supporting RPCs : server side **************************/
224/***************************************************************************************/
225
226////////////////
227void rpc_check()
228{
229    error_t         error;
230    thread_t      * thread; 
231    uint32_t        sr_save;
232
[457]233#if DEBUG_RPC_SERVER_GENERIC
234uint32_t cycle;
235#endif
236
[409]237    bool_t          found    = false;
238        thread_t      * this     = CURRENT_THREAD;
239    core_t        * core     = this->core;
240    scheduler_t   * sched    = &core->scheduler;
[440]241        remote_fifo_t * rpc_fifo = &LOCAL_CLUSTER->rpc_fifo[core->lid];
[409]242
243    // interrupted thread not preemptable during RPC chek
244        hal_disable_irq( &sr_save );
245
[440]246    // activate (or create) RPC thread if RPC FIFO not empty and no acive RPC thread 
[409]247        if( (rpc_fifo->owner == 0) && (local_fifo_is_empty(rpc_fifo) == false) )
248    {
[438]249
250#if DEBUG_RPC_SERVER_GENERIC
251cycle = (uint32_t)hal_get_cycles();
252if( DEBUG_RPC_SERVER_GENERIC < cycle ) 
[457]253printk("\n[DBG] %s : RPC FIFO non empty for core[%x,%d] / cycle %d\n",
254__FUNCTION__, local_cxy, core->lid, cycle );
[438]255#endif
256
[440]257        // search one IDLE RPC thread associated to the selected core   
[409]258        list_entry_t * iter;
259        LIST_FOREACH( &sched->k_root , iter )
260        {
261            thread = LIST_ELEMENT( iter , thread_t , sched_list );
[438]262            if( (thread->type == THREAD_RPC) && (thread->blocked == THREAD_BLOCKED_IDLE ) ) 
[409]263            {
[438]264                // unblock found RPC thread
265                thread_unblock( XPTR( local_cxy , thread ) , THREAD_BLOCKED_IDLE );
266
267                // exit loop
[409]268                found = true;
269                break;
270            }
271        }
272
[440]273        // create new RPC thread for the selected core if not found   
[409]274        if( found == false )                   
275        {
276            error = thread_kernel_create( &thread,
277                                          THREAD_RPC, 
278                                                      &rpc_thread_func, 
279                                          NULL,
[440]280                                                      core->lid );
281                 
282            assert( (error == 0), __FUNCTION__ ,
283            "no memory to allocate a new RPC thread in cluster %x", local_cxy );
[409]284
[438]285            // unblock created RPC thread
286            thread->blocked = 0;
[409]287
[440]288            // update RRPC threads counter 
289            hal_atomic_add( &LOCAL_CLUSTER->rpc_threads[core->lid] , 1 );
[438]290
291#if DEBUG_RPC_SERVER_GENERIC
[436]292cycle = (uint32_t)hal_get_cycles();
[438]293if( DEBUG_RPC_SERVER_GENERIC < cycle ) 
[457]294printk("\n[DBG] %s : new RPC thread %x created for core[%x,%d] / cycle %d\n",
295__FUNCTION__, thread, local_cxy, core->lid, cycle );
[436]296#endif
[409]297        }
298    }
299
[438]300#if DEBUG_RPC_SERVER_GENERIC
[436]301cycle = (uint32_t)hal_get_cycles();
[438]302if( DEBUG_RPC_SERVER_GENERIC < cycle ) 
[457]303printk("\n[DBG] %s : interrupted thread %x deschedules on core[%x,%d] / cycle %d\n",
304__FUNCTION__, this, local_cxy, core->lid, cycle );
[436]305#endif
[409]306
[438]307    // interrupted thread always deschedule         
[409]308        sched_yield("IPI received");
309
[438]310#if DEBUG_RPC_SERVER_GENERIC
[436]311cycle = (uint32_t)hal_get_cycles();
[438]312if( DEBUG_RPC_SERVER_GENERIC < cycle ) 
[457]313printk("\n[DBG] %s : interrupted thread %x resumes on core[%x,%d] / cycle %d\n",
314__FUNCTION__, this, local_cxy, core->lid, cycle );
[436]315#endif
[409]316
317    // interrupted thread restore IRQs after resume
318        hal_restore_irq( sr_save );
319
320} // end rpc_check()
321
322
323//////////////////////
324void rpc_thread_func()
325{
[440]326    error_t         empty;              // local RPC fifo state
327    xptr_t          desc_xp;            // extended pointer on RPC request
328    cxy_t           desc_cxy;           // RPC request cluster (client)
329    rpc_desc_t    * desc_ptr;           // RPC request local pointer
330    uint32_t        index;              // RPC request index
331    thread_t      * client_ptr;         // local pointer on client thread
332        thread_t      * server_ptr;         // local pointer on server thread
333    xptr_t          server_xp;          // extended pointer on server thread
334    lid_t           client_core_lid;    // local index of client core
335    lid_t           server_core_lid;    // local index of server core
336    bool_t          blocking;           // blocking RPC when true
337        remote_fifo_t * rpc_fifo;           // local pointer on RPC fifo
[409]338 
339    // makes RPC thread not preemptable
340        hal_disable_irq( NULL );
341 
[440]342        server_ptr      = CURRENT_THREAD;
343    server_xp       = XPTR( local_cxy , server_ptr );
344    server_core_lid = server_ptr->core->lid;
345        rpc_fifo        = &LOCAL_CLUSTER->rpc_fifo[server_core_lid];
[409]346
347    // two embedded loops:
348    // - external loop : "infinite" RPC thread
[440]349    // - internal loop : handle one RPC request per iteration
[409]350 
[438]351        while(1)  // infinite loop
[409]352        {
353        // try to take RPC_FIFO ownership
[440]354        if( hal_atomic_test_set( &rpc_fifo->owner , server_ptr->trdid ) )
[409]355        {
[436]356
[438]357#if DEBUG_RPC_SERVER_GENERIC
[436]358uint32_t cycle = (uint32_t)hal_get_cycles();
[438]359if( DEBUG_RPC_SERVER_GENERIC < cycle ) 
[437]360printk("\n[DBG] %s : RPC thread %x in cluster %x takes RPC fifo ownership / cycle %d\n",
[440]361__FUNCTION__, server_ptr, local_cxy, cycle );
[436]362#endif
[440]363                while( 1 )  //  one RPC request per iteration
[409]364            {
365                    empty = local_fifo_get_item( rpc_fifo , (uint64_t *)&desc_xp );
366
[440]367                // exit when FIFO empty or FIFO ownership lost (in case of descheduling)
368                    if ( (empty == 0) && (rpc_fifo->owner == server_ptr->trdid) )
[409]369                {
370                    // get client cluster and pointer on RPC descriptor
[436]371                    desc_cxy = GET_CXY( desc_xp );
372                    desc_ptr = GET_PTR( desc_xp );
[409]373
[437]374                        index    = hal_remote_lw( XPTR( desc_cxy , &desc_ptr->index ) );
375                    blocking = hal_remote_lw( XPTR( desc_cxy , &desc_ptr->blocking ) );
[409]376
[438]377#if DEBUG_RPC_SERVER_GENERIC
[436]378cycle = (uint32_t)hal_get_cycles();
[438]379if( DEBUG_RPC_SERVER_GENERIC < cycle ) 
380printk("\n[DBG] %s : RPC thread %x in cluster %x got rpc[%d] / rpc_cxy %x / rpc_ptr %x\n",
[440]381__FUNCTION__, server_ptr, local_cxy, index, desc_cxy, desc_ptr );
[436]382#endif
[409]383                    // call the relevant server function
384                    rpc_server[index]( desc_xp );
385
[438]386#if DEBUG_RPC_SERVER_GENERIC
[436]387cycle = (uint32_t)hal_get_cycles();
[438]388if( DEBUG_RPC_SERVER_GENERIC < cycle ) 
[437]389printk("\n[DBG] %s : RPC thread %x in cluster %x completes rpc[%d] / rpc_ptr %x / cycle %d\n",
[440]390__FUNCTION__, server_ptr, local_cxy, index, desc_ptr, cycle );
[436]391#endif
[416]392                    // decrement response counter in RPC descriptor if blocking
393                    if( blocking )
394                    {
395                        // decrement responses counter in RPC descriptor
[438]396                        hal_remote_atomic_add( XPTR( desc_cxy, &desc_ptr->responses ), -1 );
[409]397
[438]398                        // get client thread pointer and client core lid from RPC descriptor
[440]399                        client_ptr      = hal_remote_lpt( XPTR( desc_cxy , &desc_ptr->thread ) );
400                        client_core_lid = hal_remote_lw ( XPTR( desc_cxy , &desc_ptr->lid ) );
[438]401
[416]402                        // unblock client thread
[440]403                        thread_unblock( XPTR( desc_cxy , client_ptr ) , THREAD_BLOCKED_RPC );
[409]404
405                        hal_fence();
406
[438]407#if DEBUG_RPC_SERVER_GENERIC
408cycle = (uint32_t)hal_get_cycles();
409if( DEBUG_RPC_SERVER_GENERIC < cycle ) 
410printk("\n[DBG] %s : RPC thread %x (cluster %x) unblocked client thread %x (cluster %x)\n",
[440]411__FUNCTION__, server_ptr, local_cxy, client_ptr, desc_cxy, cycle );
[438]412#endif
413                        // send IPI to client core
[457]414                            // dev_pic_send_ipi( desc_cxy , client_core_lid );
[409]415                    }
416                        }
[440]417                else
418                {
419                    break;
420                }
[409]421                } // end internal loop
422
423            // release rpc_fifo ownership if not lost
[440]424            if( rpc_fifo->owner == server_ptr->trdid ) rpc_fifo->owner = 0;
[409]425
[416]426        }  // end if RPC fifo
427
[440]428        // RPC thread blocks on IDLE
429        thread_block( server_xp , THREAD_BLOCKED_IDLE );
430
431        // sucide if too many RPC threads / simply deschedule otherwise
432        if( LOCAL_CLUSTER->rpc_threads[server_core_lid] >= CONFIG_RPC_THREADS_MAX )
[409]433            {
434
[438]435#if DEBUG_RPC_SERVER_GENERIC
[436]436uint32_t cycle = (uint32_t)hal_get_cycles();
[438]437if( DEBUG_RPC_SERVER_GENERIC < cycle ) 
[437]438printk("\n[DBG] %s : RPC thread %x in cluster %x suicides / cycle %d\n",
[440]439__FUNCTION__, server_ptr, local_cxy, cycle );
[436]440#endif
[409]441            // update RPC threads counter
442                hal_atomic_add( &LOCAL_CLUSTER->rpc_threads , -1 );
443
[440]444            // RPC thread blocks on GLOBAL
445                thread_block( server_xp , THREAD_BLOCKED_GLOBAL );
446
447            // RPC thread set the REQ_DELETE flag to suicide
448            hal_remote_atomic_or( server_xp , THREAD_FLAG_REQ_DELETE );
[409]449            }
[440]450        else
451        {
[409]452
[438]453#if DEBUG_RPC_SERVER_GENERIC
[436]454uint32_t cycle = (uint32_t)hal_get_cycles();
[438]455if( DEBUG_RPC_SERVER_GENERIC < cycle ) 
[440]456printk("\n[DBG] %s : RPC thread %x in cluster %x block & deschedules / cycle %d\n",
457__FUNCTION__, server_ptr, local_cxy, cycle );
[436]458#endif
[409]459
[440]460            // RPC thread deschedules
461            assert( thread_can_yield( server_ptr ) , __FUNCTION__, "illegal sched_yield\n" );
462            sched_yield("RPC fifo empty");
463        }
[409]464
[438]465        } // end infinite loop
[409]466
467} // end rpc_thread_func()
468
469
[1]470/////////////////////////////////////////////////////////////////////////////////////////
[409]471// [0]           Marshaling functions attached to RPC_PMEM_GET_PAGES (blocking)
[1]472/////////////////////////////////////////////////////////////////////////////////////////
473
474///////////////////////////////////////////////
475void rpc_pmem_get_pages_client( cxy_t      cxy,
476                                uint32_t   order,      // in
[313]477                                page_t  ** page )      // out
[1]478{
[438]479#if DEBUG_RPC_PMEM_GET_PAGES
480uint32_t cycle = (uint32_t)hal_get_cycles();
481if( cycle > DEBUG_RPC_PMEM_GET_PAGES )
482printk("\n[DBG] %s : thread %x enter on core[%x,%d] / cycle %d\n",
483__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
484#endif
[296]485
[238]486    assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
[1]487
488    // initialise RPC descriptor header
489    rpc_desc_t  rpc;
[438]490    rpc.index     = RPC_PMEM_GET_PAGES;
491    rpc.blocking  = true;
492    rpc.responses = 1;
[1]493
494    // set input arguments in RPC descriptor
495    rpc.args[0] = (uint64_t)order;
496
[436]497    // register RPC request in remote RPC fifo
[416]498    rpc_send( cxy , &rpc );
[1]499
[313]500    // get output arguments from RPC descriptor
[407]501    *page = (page_t *)(intptr_t)rpc.args[1];
[279]502
[438]503#if DEBUG_RPC_PMEM_GET_PAGES
504cycle = (uint32_t)hal_get_cycles();
505if( cycle > DEBUG_RPC_PMEM_GET_PAGES )
506printk("\n[DBG] %s : thread %x exit / cycle %d\n",
507__FUNCTION__ , CURRENT_THREAD , cycle );
508#endif
[1]509}
510
511///////////////////////////////////////////
512void rpc_pmem_get_pages_server( xptr_t xp )
513{
[438]514#if DEBUG_RPC_PMEM_GET_PAGES
515uint32_t cycle = (uint32_t)hal_get_cycles();
516if( cycle > DEBUG_RPC_PMEM_GET_PAGES )
517printk("\n[DBG] %s : thread %x enter on core[%x,%d] / cycle %d\n",
518__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
519#endif
[296]520
[1]521    // get client cluster identifier and pointer on RPC descriptor
[436]522    cxy_t        cxy  = GET_CXY( xp );
523    rpc_desc_t * desc = GET_PTR( xp );
[1]524
525    // get input arguments from client RPC descriptor
[409]526    uint32_t order = (uint32_t)hal_remote_lwd( XPTR( cxy , &desc->args[0] ) );
[1]527   
528    // call local pmem allocator
529    page_t * page = ppm_alloc_pages( order ); 
530
531    // set output arguments into client RPC descriptor
[313]532    hal_remote_swd( XPTR( cxy , &desc->args[1] ) , (uint64_t)(intptr_t)page );
[296]533
[438]534#if DEBUG_RPC_PMEM_GET_PAGES
535cycle = (uint32_t)hal_get_cycles();
536if( cycle > DEBUG_RPC_PMEM_GET_PAGES )
537printk("\n[DBG] %s : thread %x exit / cycle %d\n",
538__FUNCTION__ , CURRENT_THREAD , cycle );
539#endif
[1]540}
541
542/////////////////////////////////////////////////////////////////////////////////////////
[409]543// [1]       Marshaling functions attached to RPC_PMEM_RELEASE_PAGES (blocking)
[1]544/////////////////////////////////////////////////////////////////////////////////////////
545
[409]546//////////////////////////////////////////////////
547void rpc_pmem_release_pages_client( cxy_t     cxy,
548                                    page_t  * page )      // out
549{
[438]550#if DEBUG_RPC_PMEM_RELEASE_PAGES
551uint32_t cycle = (uint32_t)hal_get_cycles();
552if( cycle > DEBUG_RPC_PMEM_RELEASE_PAGES )
553printk("\n[DBG] %s : thread %x enter on core[%x,%d] / cycle %d\n",
554__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
555#endif
[409]556
557    assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
558
559    // initialise RPC descriptor header
560    rpc_desc_t  rpc;
561    rpc.index    = RPC_PMEM_RELEASE_PAGES;
[416]562    rpc.blocking = true;
[438]563    rpc.responses = 1;
[409]564
565    // set input arguments in RPC descriptor
566    rpc.args[0] = (uint64_t)(intptr_t)page;
567
[436]568    // register RPC request in remote RPC fifo
[416]569    rpc_send( cxy , &rpc );
[409]570
[438]571#if DEBUG_RPC_PMEM_RELEASE_PAGES
572cycle = (uint32_t)hal_get_cycles();
573if( cycle > DEBUG_RPC_PMEM_RELEASE_PAGES )
574printk("\n[DBG] %s : thread %x exit / cycle %d\n",
575__FUNCTION__ , CURRENT_THREAD , cycle );
576#endif
[409]577}
578
579///////////////////////////////////////////////
580void rpc_pmem_release_pages_server( xptr_t xp )
581{
[438]582#if DEBUG_RPC_PMEM_RELEASE_PAGES
583uint32_t cycle = (uint32_t)hal_get_cycles();
584if( cycle > DEBUG_RPC_PMEM_RELEASE_PAGES )
585printk("\n[DBG] %s : thread %x enter on core[%x,%d] / cycle %d\n",
586__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
587#endif
[409]588
589    // get client cluster identifier and pointer on RPC descriptor
[436]590    cxy_t        cxy  = GET_CXY( xp );
591    rpc_desc_t * desc = GET_PTR( xp );
[409]592
593    // get input arguments from client RPC descriptor
594    page_t * page = (page_t *)(intptr_t)hal_remote_lwd( XPTR( cxy , &desc->args[0] ) );
595   
596    // release memory to local pmem
597    kmem_req_t req;
598    req.type = KMEM_PAGE;
599    req.ptr  = page;
600    kmem_free( &req );
601
[438]602#if DEBUG_RPC_PMEM_RELEASE_PAGES
603cycle = (uint32_t)hal_get_cycles();
604if( cycle > DEBUG_RPC_PMEM_RELEASE_PAGES )
605printk("\n[DBG] %s : thread %x exit / cycle %d\n",
606__FUNCTION__ , CURRENT_THREAD , cycle );
607#endif
[409]608}
609
610/////////////////////////////////////////////////////////////////////////////////////////
[433]611// [2]      undefined slot
[409]612/////////////////////////////////////////////////////////////////////////////////////////
613
[1]614/////////////////////////////////////////////////////////////////////////////////////////
[409]615// [3]           Marshaling functions attached to RPC_PROCESS_MAKE_FORK (blocking)
[1]616/////////////////////////////////////////////////////////////////////////////////////////
617
[408]618///////////////////////////////////////////////////
619void rpc_process_make_fork_client( cxy_t       cxy,
620                                   xptr_t      ref_process_xp,      // in
621                                   xptr_t      parent_thread_xp,    // in
622                                   pid_t     * child_pid,           // out
623                                   thread_t ** child_thread_ptr,    // out     
624                                   error_t   * error )              // out
[1]625{
[438]626#if DEBUG_RPC_PROCESS_MAKE_FORK
627uint32_t cycle = (uint32_t)hal_get_cycles();
628if( cycle > DEBUG_RPC_PROCESS_MAKE_FORK )
629printk("\n[DBG] %s : thread %x enter on core[%x,%d] / cycle %d\n",
630__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
631#endif
632
[238]633    assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
[1]634
635    // initialise RPC descriptor header
636    rpc_desc_t  rpc;
[408]637    rpc.index    = RPC_PROCESS_MAKE_FORK;
[416]638    rpc.blocking = true;
[438]639    rpc.responses = 1;
[1]640
641    // set input arguments in RPC descriptor 
[440]642    rpc.args[0] = (uint64_t)ref_process_xp;
643    rpc.args[1] = (uint64_t)parent_thread_xp;
[1]644
[436]645    // register RPC request in remote RPC fifo
[416]646    rpc_send( cxy , &rpc );
[1]647
648    // get output arguments from RPC descriptor
[408]649    *child_pid         = (pid_t)rpc.args[2];
650    *child_thread_ptr  = (thread_t *)(intptr_t)rpc.args[3];
651    *error             = (error_t)rpc.args[4];     
[279]652
[438]653#if DEBUG_RPC_PROCESS_MAKE_FORK
654cycle = (uint32_t)hal_get_cycles();
655if( cycle > DEBUG_RPC_PROCESS_MAKE_FORK )
656printk("\n[DBG] %s : thread %x exit / cycle %d\n",
657__FUNCTION__ , CURRENT_THREAD , cycle );
658#endif
[1]659}
660
[408]661//////////////////////////////////////////////
662void rpc_process_make_fork_server( xptr_t xp )
[1]663{
[438]664#if DEBUG_RPC_PROCESS_MAKE_FORK
665uint32_t cycle = (uint32_t)hal_get_cycles();
666if( cycle > DEBUG_RPC_PROCESS_MAKE_FORK )
667printk("\n[DBG] %s : thread %x enter on core[%x,%d] / cycle %d\n",
668__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
669#endif
[409]670
[408]671    xptr_t     ref_process_xp;     // extended pointer on reference parent process
672    xptr_t     parent_thread_xp;   // extended pointer on parent thread
673    pid_t      child_pid;          // child process identifier
674    thread_t * child_thread_ptr;   // local copy of exec_info structure
675    error_t    error;              // local error status
[1]676
677    // get client cluster identifier and pointer on RPC descriptor
[436]678    cxy_t        client_cxy  = GET_CXY( xp );
679    rpc_desc_t * desc        = GET_PTR( xp );
[1]680
[408]681    // get input arguments from cient RPC descriptor
682    ref_process_xp   = (xptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) );
683    parent_thread_xp = (xptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[1] ) );
[1]684
685    // call local kernel function
[408]686    error = process_make_fork( ref_process_xp,
687                               parent_thread_xp,
688                               &child_pid,
689                               &child_thread_ptr ); 
[1]690
691    // set output argument into client RPC descriptor
[408]692    hal_remote_swd( XPTR( client_cxy , &desc->args[2] ) , (uint64_t)child_pid );
693    hal_remote_swd( XPTR( client_cxy , &desc->args[3] ) , (uint64_t)(intptr_t)child_thread_ptr );
694    hal_remote_swd( XPTR( client_cxy , &desc->args[4] ) , (uint64_t)error );
[296]695
[438]696#if DEBUG_RPC_PROCESS_MAKE_FORK
697cycle = (uint32_t)hal_get_cycles();
698if( cycle > DEBUG_RPC_PROCESS_MAKE_FORK )
699printk("\n[DBG] %s : thread %x exit / cycle %d\n",
700__FUNCTION__ , CURRENT_THREAD , cycle );
701#endif
[1]702}
703
704/////////////////////////////////////////////////////////////////////////////////////////
[433]705// [4]      undefined slot
[1]706/////////////////////////////////////////////////////////////////////////////////////////
707
[409]708/////////////////////////////////////////////////////////////////////////////////////////
[435]709// [5]      undefined slot
[409]710/////////////////////////////////////////////////////////////////////////////////////////
711
[1]712/////////////////////////////////////////////////////////////////////////////////////////
[436]713// [6]      Marshaling functions attached to RPC_THREAD_USER_CREATE (blocking) 
[1]714/////////////////////////////////////////////////////////////////////////////////////////
715
716/////////////////////////////////////////////////////////
717void rpc_thread_user_create_client( cxy_t            cxy, 
[23]718                                    pid_t            pid,         // in
719                                    void           * start_func,  // in
720                                    void           * start_arg,   // in
[1]721                                    pthread_attr_t * attr,        // in
722                                    xptr_t         * thread_xp,   // out
723                                    error_t        * error )      // out
724{
[238]725    assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
[1]726
727    // initialise RPC descriptor header
728    rpc_desc_t  rpc;
[436]729    rpc.index    = RPC_THREAD_USER_CREATE;
[416]730    rpc.blocking = true;
[438]731    rpc.responses = 1;
[1]732
733    // set input arguments in RPC descriptor
[23]734    rpc.args[0] = (uint64_t)pid;
735    rpc.args[1] = (uint64_t)(intptr_t)start_func;
736    rpc.args[2] = (uint64_t)(intptr_t)start_arg;
737    rpc.args[3] = (uint64_t)(intptr_t)attr;
[1]738
[436]739    // register RPC request in remote RPC fifo
[416]740    rpc_send( cxy , &rpc );
[1]741
742    // get output arguments from RPC descriptor
[23]743    *thread_xp = (xptr_t)rpc.args[4];
744    *error     = (error_t)rpc.args[5];
[279]745
[1]746}
747
748///////////////////////////////////////////////
749void rpc_thread_user_create_server( xptr_t xp )
750{
[409]751
[1]752    pthread_attr_t * attr_ptr;   // pointer on attributes structure in client cluster
753    pthread_attr_t   attr_copy;  // attributes structure  copy in server cluster
754    thread_t       * thread_ptr; // local pointer on thread descriptor
755    xptr_t           thread_xp;  // extended pointer on thread descriptor
[23]756
[1]757    pid_t            pid;        // process identifier
[23]758    void           * start_func;
759    void           * start_arg;
760    error_t          error;
[1]761
762    // get client cluster identifier and pointer on RPC descriptor
[436]763    cxy_t        client_cxy  = GET_CXY( xp );
[438]764    rpc_desc_t * desc        = GET_PTR( xp );
[1]765
766    // get pointer on attributes structure in client cluster from RPC descriptor
767
[23]768    // get input arguments from RPC descriptor
769    pid        = (pid_t)                     hal_remote_lwd(XPTR(client_cxy , &desc->args[0]));
770    start_func = (void *)(intptr_t)          hal_remote_lwd(XPTR(client_cxy , &desc->args[1]));
771    start_arg  = (void *)(intptr_t)          hal_remote_lwd(XPTR(client_cxy , &desc->args[2]));
772    attr_ptr   = (pthread_attr_t *)(intptr_t)hal_remote_lwd(XPTR(client_cxy , &desc->args[3]));
773
[1]774    // makes a local copy of attributes structure
775    hal_remote_memcpy( XPTR( local_cxy , &attr_copy ),
776                       XPTR( client_cxy , attr_ptr ), 
777                       sizeof(pthread_attr_t) );
778   
[23]779    // call kernel function
780    error = thread_user_create( pid,
781                                start_func,
782                                start_arg,
783                                &attr_copy,
784                                &thread_ptr );
[1]785
786    // set output arguments
787    thread_xp = XPTR( local_cxy , thread_ptr );
[407]788    hal_remote_swd( XPTR( client_cxy , &desc->args[4] ) , (uint64_t)thread_xp );
789    hal_remote_swd( XPTR( client_cxy , &desc->args[5] ) , (uint64_t)error );
[296]790
[1]791}
792
793/////////////////////////////////////////////////////////////////////////////////////////
[436]794// [7]      Marshaling functions attached to RPC_THREAD_KERNEL_CREATE (blocking)
[1]795/////////////////////////////////////////////////////////////////////////////////////////
796
797////////////////////////////////////////////////////
798void rpc_thread_kernel_create_client( cxy_t     cxy,
799                                      uint32_t  type,        // in
800                                      void    * func,        // in
801                                      void    * args,        // in
802                                      xptr_t  * thread_xp,   // out
803                                      error_t * error )      // out
804{
[238]805    assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
[1]806
807    // initialise RPC descriptor header
808    rpc_desc_t  rpc;
809    rpc.index    = RPC_THREAD_KERNEL_CREATE;
[416]810    rpc.blocking = true;
[438]811    rpc.responses = 1;
[1]812
813    // set input arguments in RPC descriptor
814    rpc.args[0] = (uint64_t)type;
815    rpc.args[1] = (uint64_t)(intptr_t)func;
816    rpc.args[2] = (uint64_t)(intptr_t)args;
817   
[436]818    // register RPC request in remote RPC fifo
[416]819    rpc_send( cxy , &rpc );
[1]820
821    // get output arguments from RPC descriptor
822    *thread_xp = (xptr_t)rpc.args[3];
823    *error     = (error_t)rpc.args[4];
[279]824
[1]825}
826
827/////////////////////////////////////////////////
828void rpc_thread_kernel_create_server( xptr_t xp )
829{
830    thread_t       * thread_ptr;  // local pointer on thread descriptor
831    xptr_t           thread_xp;   // extended pointer on thread descriptor
832    lid_t            core_lid;    // core local index
833    error_t          error;   
834
835    // get client cluster identifier and pointer on RPC descriptor
[436]836    cxy_t        client_cxy  = GET_CXY( xp );
[438]837    rpc_desc_t * desc        = GET_PTR( xp );
[1]838
839    // get attributes from RPC descriptor
840    uint32_t  type = (uint32_t)       hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) );
841    void    * func = (void*)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[1] ) );
842    void    * args = (void*)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[2] ) );
843
844    // select one core
845    core_lid = cluster_select_local_core();
846
847    // call local kernel function
848    error = thread_kernel_create( &thread_ptr , type , func , args , core_lid );
849
850    // set output arguments
851    thread_xp = XPTR( local_cxy , thread_ptr );
852    hal_remote_swd( XPTR( client_cxy , &desc->args[1] ) , (uint64_t)error );
853    hal_remote_swd( XPTR( client_cxy , &desc->args[2] ) , (uint64_t)thread_xp );
[296]854
[1]855}
856
857/////////////////////////////////////////////////////////////////////////////////////////
[436]858// [8]   undefined slot
[1]859/////////////////////////////////////////////////////////////////////////////////////////
860
[296]861
[23]862/////////////////////////////////////////////////////////////////////////////////////////
[415]863// [9] Marshaling functions attached to RPC_PROCESS_SIGACTION (multicast / non blocking)
[23]864/////////////////////////////////////////////////////////////////////////////////////////
865
[416]866////////////////////////////////////////////////////
867void rpc_process_sigaction_client( cxy_t        cxy,
[436]868                                   rpc_desc_t * rpc )
[409]869{
870
[438]871#if DEBUG_RPC_PROCESS_SIGACTION
[436]872uint32_t  cycle  = (uint32_t)hal_get_cycles();
873uint32_t  action = rpc->args[0];
874pid_t     pid    = rpc->args[1];
[438]875if( DEBUG_RPC_PROCESS_SIGACTION < cycle )
[457]876printk("\n[DBG] %s : enter to request %s of process %x in cluster %x / cycle %d\n",
[436]877__FUNCTION__ , process_action_str( action ) , pid , cxy , cycle );
878#endif
[409]879
[436]880    // check some RPC arguments
881    assert( (rpc->blocking == false) , __FUNCTION__ , "must be non-blocking\n");
882    assert( (rpc->index == RPC_PROCESS_SIGACTION ) , __FUNCTION__ , "bad RPC index\n" );
[409]883
[436]884    // register RPC request in remote RPC fifo and return
885    rpc_send( cxy , rpc );
886
[438]887#if DEBUG_RPC_PROCESS_SIGACTION
[436]888cycle = (uint32_t)hal_get_cycles();
[438]889if( DEBUG_RPC_PROCESS_SIGACTION < cycle )
[436]890printk("\n[DBG] %s : exit after requesting to %s process %x in cluster %x / cycle %d\n",
891__FUNCTION__ , process_action_str( action ) , pid , cxy , cycle );
892#endif
893
894}  // end rpc_process_sigaction_client()
895
[409]896//////////////////////////////////////////////
897void rpc_process_sigaction_server( xptr_t xp )
898{
[440]899    pid_t        pid;             // target process identifier
900    process_t  * process;         // pointer on local target process descriptor
901    uint32_t     action;          // sigaction index
902    thread_t   * client_ptr;      // pointer on client thread in client cluster
903    xptr_t       client_xp;       // extended pointer client thread
904    cxy_t        client_cxy;      // client cluster identifier
905    rpc_desc_t * rpc;             // pointer on rpc descriptor in client cluster
906    xptr_t       count_xp;        // extended pointer on responses counter
907    uint32_t     count_value;     // responses counter value
908    lid_t        client_lid;      // client core local index
[409]909
910    // get client cluster identifier and pointer on RPC descriptor
[436]911    client_cxy = GET_CXY( xp );
912    rpc        = GET_PTR( xp );
[409]913
914    // get arguments from RPC descriptor
[436]915    action   = (uint32_t)hal_remote_lwd( XPTR(client_cxy , &rpc->args[0]) );
916    pid      = (pid_t)   hal_remote_lwd( XPTR(client_cxy , &rpc->args[1]) );
[409]917
[438]918#if DEBUG_RPC_PROCESS_SIGACTION
[436]919uint32_t cycle = (uint32_t)hal_get_cycles();
[438]920if( DEBUG_RPC_PROCESS_SIGACTION < cycle )
[436]921printk("\n[DBG] %s : enter to %s process %x in cluster %x / cycle %d\n",
922__FUNCTION__ , process_action_str( action ) , pid , local_cxy , cycle );
923#endif
[435]924
[440]925    // get client thread pointers
926    client_ptr = (thread_t *)hal_remote_lpt( XPTR( client_cxy , &rpc->thread ) );
927    client_xp  = XPTR( client_cxy , client_ptr );
928
[435]929    // get local process descriptor
[436]930    process = cluster_get_local_process_from_pid( pid );
[435]931
[409]932    // call relevant kernel function
[440]933    if      ( action == DELETE_ALL_THREADS  ) process_delete_threads ( process , client_xp ); 
934    else if ( action == BLOCK_ALL_THREADS   ) process_block_threads  ( process , client_xp ); 
[436]935    else if ( action == UNBLOCK_ALL_THREADS ) process_unblock_threads( process );
[409]936
[436]937    // build extended pointer on response counter in RPC
[438]938    count_xp = XPTR( client_cxy , &rpc->responses );
[436]939
[416]940    // decrement the responses counter in RPC descriptor,
[440]941    count_value = hal_remote_atomic_add( count_xp , -1 );
942
[416]943    // unblock the client thread only if it is the last response.
[440]944    if( count_value == 1 )
[416]945    {
[440]946        // get client core lid
[436]947        client_lid    = (lid_t)     hal_remote_lw ( XPTR( client_cxy , &rpc->lid    ) );
948
[440]949        // unblock client thread
950        thread_unblock( client_xp , THREAD_BLOCKED_RPC );
951
952        // send an IPI to client core
[457]953        // dev_pic_send_ipi( client_cxy , client_lid );
[416]954    }
955
[438]956#if DEBUG_RPC_PROCESS_SIGACTION
[436]957cycle = (uint32_t)hal_get_cycles();
[438]958if( DEBUG_RPC_PROCESS_SIGACTION < cycle )
[436]959printk("\n[DBG] %s : exit after %s process %x in cluster %x / cycle %d\n",
960__FUNCTION__ , process_action_str( action ) , pid , local_cxy , cycle );
961#endif
[409]962
[436]963} // end rpc_process_sigaction_server()
964
[409]965/////////////////////////////////////////////////////////////////////////////////////////
[436]966// [10]     Marshaling functions attached to RPC_VFS_INODE_CREATE  (blocking)
[409]967/////////////////////////////////////////////////////////////////////////////////////////
968
[1]969/////////////////////////////////////////////////////
970void rpc_vfs_inode_create_client( cxy_t          cxy,     
971                                  xptr_t         dentry_xp,  // in
[23]972                                  uint32_t       fs_type,    // in
973                                  uint32_t       inode_type, // in
[188]974                                  void         * extend,     // in
[1]975                                  uint32_t       attr,       // in
[23]976                                  uint32_t       rights,     // in
[1]977                                  uint32_t       uid,        // in
978                                  uint32_t       gid,        // in
979                                  xptr_t       * inode_xp,   // out
980                                  error_t      * error )     // out
981{
[238]982    assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
[1]983
984    // initialise RPC descriptor header
985    rpc_desc_t  rpc;
986    rpc.index    = RPC_VFS_INODE_CREATE;
[416]987    rpc.blocking = true;
[438]988    rpc.responses = 1;
[1]989
990    // set input arguments in RPC descriptor
991    rpc.args[0] = (uint64_t)dentry_xp;
[23]992    rpc.args[1] = (uint64_t)fs_type;
993    rpc.args[2] = (uint64_t)inode_type;
[188]994    rpc.args[3] = (uint64_t)(intptr_t)extend;
995    rpc.args[4] = (uint64_t)attr;
996    rpc.args[5] = (uint64_t)rights;
997    rpc.args[6] = (uint64_t)uid;
998    rpc.args[7] = (uint64_t)gid;
[1]999
[436]1000    // register RPC request in remote RPC fifo
[416]1001    rpc_send( cxy , &rpc );
[1]1002
1003    // get output values from RPC descriptor
[188]1004    *inode_xp = (xptr_t)rpc.args[8];
1005    *error    = (error_t)rpc.args[9];
[279]1006
[1]1007}
1008
1009/////////////////////////////////////////////
1010void rpc_vfs_inode_create_server( xptr_t xp )
1011{
1012    xptr_t           dentry_xp;
[23]1013    uint32_t         fs_type;
1014    uint32_t         inode_type;
[188]1015    void           * extend;
[1]1016    uint32_t         attr;
[23]1017    uint32_t         rights;
[1]1018    uint32_t         uid;
1019    uint32_t         gid;
1020    xptr_t           inode_xp;
1021    error_t          error;
1022
1023    // get client cluster identifier and pointer on RPC descriptor
[436]1024    cxy_t        client_cxy  = GET_CXY( xp );
1025    rpc_desc_t * desc        = GET_PTR( xp );
[1]1026
1027    // get input arguments from client rpc descriptor
[188]1028    dentry_xp  = (xptr_t)          hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) );
1029    fs_type    = (uint32_t)        hal_remote_lwd( XPTR( client_cxy , &desc->args[1] ) );
1030    inode_type = (uint32_t)        hal_remote_lwd( XPTR( client_cxy , &desc->args[2] ) );
1031    extend     = (void *)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[3] ) );
1032    attr       = (uint32_t)        hal_remote_lwd( XPTR( client_cxy , &desc->args[4] ) );
1033    rights     = (uint32_t)        hal_remote_lwd( XPTR( client_cxy , &desc->args[5] ) );
1034    uid        = (uid_t)           hal_remote_lwd( XPTR( client_cxy , &desc->args[6] ) );
1035    gid        = (gid_t)           hal_remote_lwd( XPTR( client_cxy , &desc->args[7] ) );
[1]1036
1037    // call local kernel function
1038    error = vfs_inode_create( dentry_xp,
[23]1039                              fs_type,
1040                              inode_type,
[188]1041                              extend,
[1]1042                              attr,
[23]1043                              rights,
[1]1044                              uid,
1045                              gid,
1046                              &inode_xp );
1047
1048    // set output arguments
[188]1049    hal_remote_swd( XPTR( client_cxy , &desc->args[8] ) , (uint64_t)inode_xp );
1050    hal_remote_swd( XPTR( client_cxy , &desc->args[9] ) , (uint64_t)error );
[296]1051
[1]1052}
1053
1054/////////////////////////////////////////////////////////////////////////////////////////
[409]1055// [11]          Marshaling functions attached to RPC_VFS_INODE_DESTROY  (blocking)
[1]1056/////////////////////////////////////////////////////////////////////////////////////////
1057
1058/////////////////////////////////////////////////////////////
1059void rpc_vfs_inode_destroy_client( cxy_t                cxy,
1060                                   struct vfs_inode_s * inode )
1061{
[238]1062    assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
[1]1063
1064    // initialise RPC descriptor header
1065    rpc_desc_t  rpc;
1066    rpc.index    = RPC_VFS_INODE_DESTROY;
[416]1067    rpc.blocking = true;
[438]1068    rpc.responses = 1;
[1]1069
1070    // set input arguments in RPC descriptor
1071    rpc.args[0] = (uint64_t)(intptr_t)inode;
1072   
[436]1073    // register RPC request in remote RPC fifo
[416]1074    rpc_send( cxy , &rpc );
[279]1075
[1]1076}
1077
1078//////////////////////////////////////////////
1079void rpc_vfs_inode_destroy_server( xptr_t xp )
1080{
1081    vfs_inode_t * inode;
1082
1083    // get client cluster identifier and pointer on RPC descriptor
[436]1084    cxy_t        client_cxy  = GET_CXY( xp );
1085    rpc_desc_t * desc        = GET_PTR( xp );
[1]1086
1087    // get arguments "inode" from client RPC descriptor
1088    inode = (vfs_inode_t *)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) );
1089                       
1090    // call local kernel function
1091    vfs_inode_destroy( inode );
[296]1092
[1]1093}
1094
1095/////////////////////////////////////////////////////////////////////////////////////////
[409]1096// [12]          Marshaling functions attached to RPC_VFS_DENTRY_CREATE  (blocking)
[1]1097/////////////////////////////////////////////////////////////////////////////////////////
1098
1099//////////////////////////////////////////////////////////////
1100void rpc_vfs_dentry_create_client( cxy_t                  cxy,
1101                                   uint32_t               type,         // in
1102                                   char                 * name,         // in
1103                                   struct vfs_inode_s   * parent,       // in
1104                                   xptr_t               * dentry_xp,    // out
1105                                   error_t              * error )       // out
1106{
[438]1107#if DEBUG_RPC_VFS_DENTRY_CREATE
1108uint32_t cycle = (uint32_t)hal_get_cycles();
1109if( cycle > DEBUG_RPC_VFS_DENTRY_CREATE )
1110printk("\n[DBG] %s : thread %x enter on core[%x,%d] / cycle %d\n",
1111__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
1112#endif
[296]1113
[238]1114    assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
[1]1115
1116    // initialise RPC descriptor header
1117    rpc_desc_t  rpc;
1118    rpc.index    = RPC_VFS_DENTRY_CREATE;
[416]1119    rpc.blocking = true;
[438]1120    rpc.responses = 1;
[1]1121
1122    // set input arguments in RPC descriptor
1123    rpc.args[0] = (uint64_t)type;
1124    rpc.args[1] = (uint64_t)(intptr_t)name;
[238]1125    rpc.args[2] = (uint64_t)(intptr_t)parent;
[1]1126
[436]1127    // register RPC request in remote RPC fifo
[416]1128    rpc_send( cxy , &rpc );
[1]1129
1130    // get output values from RPC descriptor
[238]1131    *dentry_xp = (xptr_t)rpc.args[3];
1132    *error     = (error_t)rpc.args[4];
[279]1133
[438]1134#if DEBUG_RPC_VFS_DENTRY_CREATE
1135cycle = (uint32_t)hal_get_cycles();
1136if( cycle > DEBUG_RPC_VFS_DENTRY_CREATE )
1137printk("\n[DBG] %s : thread %x exit / cycle %d\n",
1138__FUNCTION__ , CURRENT_THREAD , cycle );
1139#endif
[1]1140}
1141
1142//////////////////////////////////////////////
1143void rpc_vfs_dentry_create_server( xptr_t xp )
1144{
[438]1145#if DEBUG_RPC_VFS_DENTRY_CREATE
1146uint32_t cycle = (uint32_t)hal_get_cycles();
1147if( cycle > DEBUG_RPC_VFS_DENTRY_CREATE )
1148printk("\n[DBG] %s : thread %x enter on core[%x,%d] / cycle %d\n",
1149__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
1150#endif
1151
[1]1152    uint32_t      type;
1153    char        * name;
1154    vfs_inode_t * parent;
1155    xptr_t        dentry_xp;
1156    error_t       error;
[238]1157    char          name_copy[CONFIG_VFS_MAX_NAME_LENGTH];
1158
[1]1159    // get client cluster identifier and pointer on RPC descriptor
[436]1160    cxy_t        client_cxy  = GET_CXY( xp );
1161    rpc_desc_t * desc        = GET_PTR( xp );
[1]1162
[238]1163    // get arguments "name", "type", and "parent" from client RPC descriptor
[1]1164    type   = (uint32_t)               hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) );
[238]1165    name   = (char *)(intptr_t)       hal_remote_lwd( XPTR( client_cxy , &desc->args[1] ) );
1166    parent = (vfs_inode_t *)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[2] ) );
[296]1167
[238]1168    // makes a local copy of  name
1169    hal_remote_strcpy( XPTR( local_cxy , name_copy ),
1170                       XPTR( client_cxy , name ) );
1171
[1]1172    // call local kernel function
1173    error = vfs_dentry_create( type,
1174                               name_copy,
1175                               parent,
1176                               &dentry_xp );
1177    // set output arguments
[238]1178    hal_remote_swd( XPTR( client_cxy , &desc->args[3] ) , (uint64_t)dentry_xp );
1179    hal_remote_swd( XPTR( client_cxy , &desc->args[4] ) , (uint64_t)error );
[296]1180
[438]1181#if DEBUG_RPC_VFS_DENTRY_CREATE
1182cycle = (uint32_t)hal_get_cycles();
1183if( cycle > DEBUG_RPC_VFS_DENTRY_CREATE )
1184printk("\n[DBG] %s : thread %x exit / cycle %d\n",
1185__FUNCTION__ , CURRENT_THREAD , cycle );
1186#endif
[1]1187}
1188
1189/////////////////////////////////////////////////////////////////////////////////////////
[409]1190// [13]          Marshaling functions attached to RPC_VFS_DENTRY_DESTROY  (blocking)
[1]1191/////////////////////////////////////////////////////////////////////////////////////////
1192
[296]1193
[1]1194///////////////////////////////////////////////////////
1195void rpc_vfs_dentry_destroy_client( cxy_t          cxy,
1196                                    vfs_dentry_t * dentry )
1197{
[440]1198#if DEBUG_RPC_VFS_DENTRY_DESTROY
1199uint32_t cycle = (uint32_t)hal_get_cycles();
1200if( cycle > DEBUG_RPC_VFS_DENTRY_DESTROY )
1201printk("\n[DBG] %s : thread %x enter on core[%x,%d] / cycle %d\n",
1202__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
1203#endif
1204
[238]1205    assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
[1]1206
1207    // initialise RPC descriptor header
1208    rpc_desc_t  rpc;
1209    rpc.index    = RPC_VFS_DENTRY_DESTROY;
[416]1210    rpc.blocking = true;
[438]1211    rpc.responses = 1;
[1]1212
1213    // set input arguments in RPC descriptor
1214    rpc.args[0] = (uint64_t)(intptr_t)dentry;
1215   
[436]1216    // register RPC request in remote RPC fifo
[416]1217    rpc_send( cxy , &rpc );
[279]1218
[440]1219#if DEBUG_RPC_VFS_DENTRY_DESTROY
1220cycle = (uint32_t)hal_get_cycles();
1221if( cycle > DEBUG_RPC_VFS_DENTRY_DESTROY )
1222printk("\n[DBG] %s : thread %x exit / cycle %d\n",
1223__FUNCTION__ , CURRENT_THREAD , cycle );
1224#endif
[1]1225}
1226
1227///////////////////////////////////////////////
1228void rpc_vfs_dentry_destroy_server( xptr_t xp )
1229{
[440]1230#if DEBUG_RPC_VFS_DENTRY_DESTROY
1231uint32_t cycle = (uint32_t)hal_get_cycles();
1232if( cycle > DEBUG_RPC_VFS_DENTRY_DESTROY )
1233printk("\n[DBG] %s : thread %x enter on core[%x,%d] / cycle %d\n",
1234__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
1235#endif
1236
[1]1237    vfs_dentry_t * dentry;
1238
1239    // get client cluster identifier and pointer on RPC descriptor
[436]1240    cxy_t        client_cxy  = GET_CXY( xp );
1241    rpc_desc_t * desc        = GET_PTR( xp );
[1]1242
1243    // get arguments "dentry" from client RPC descriptor
1244    dentry = (vfs_dentry_t *)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) );
1245                       
1246    // call local kernel function
1247    vfs_dentry_destroy( dentry );
[296]1248
[440]1249#if DEBUG_RPC_VFS_DENTRY_DESTROY
1250cycle = (uint32_t)hal_get_cycles();
1251if( cycle > DEBUG_RPC_VFS_DENTRY_DESTROY )
1252printk("\n[DBG] %s : thread %x exit / cycle %d\n",
1253__FUNCTION__ , CURRENT_THREAD , cycle );
1254#endif
[1]1255}
1256
1257
1258/////////////////////////////////////////////////////////////////////////////////////////
[409]1259// [14]          Marshaling functions attached to RPC_VFS_FILE_CREATE  (blocking)
[1]1260/////////////////////////////////////////////////////////////////////////////////////////
1261
[23]1262//////////////////////////////////////////////////////////////
1263void rpc_vfs_file_create_client( cxy_t                  cxy,
1264                                 struct vfs_inode_s   * inode,       // in
1265                                 uint32_t               file_attr,   // in
1266                                 xptr_t               * file_xp,     // out
1267                                 error_t              * error )      // out
1268{
[438]1269#if DEBUG_RPC_VFS_FILE_CREATE
1270uint32_t cycle = (uint32_t)hal_get_cycles();
1271if( cycle > DEBUG_RPC_VFS_FILE_CREATE )
1272printk("\n[DBG] %s : thread %x enter on core[%x,%d] / cycle %d\n",
1273__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
1274#endif
1275
[238]1276    assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
[23]1277
1278    // initialise RPC descriptor header
1279    rpc_desc_t  rpc;
1280    rpc.index    = RPC_VFS_FILE_CREATE;
[416]1281    rpc.blocking = true;
[438]1282    rpc.responses = 1;
[23]1283
1284    // set input arguments in RPC descriptor
1285    rpc.args[0] = (uint64_t)(intptr_t)inode;
1286    rpc.args[1] = (uint64_t)file_attr;
1287
[436]1288    // register RPC request in remote RPC fifo
[416]1289    rpc_send( cxy , &rpc );
[23]1290
1291    // get output values from RPC descriptor
1292    *file_xp = (xptr_t)rpc.args[2];
1293    *error   = (error_t)rpc.args[3];
[279]1294
[438]1295#if DEBUG_RPC_VFS_FILE_CREATE
1296cycle = (uint32_t)hal_get_cycles();
1297if( cycle > DEBUG_RPC_VFS_FILE_CREATE )
1298printk("\n[DBG] %s : thread %x exit / cycle %d\n",
1299__FUNCTION__ , CURRENT_THREAD , cycle );
1300#endif
[23]1301}
1302
1303////////////////////////////////////////////
1304void rpc_vfs_file_create_server( xptr_t xp )
1305{
[438]1306#if DEBUG_RPC_VFS_FILE_CREATE
1307uint32_t cycle = (uint32_t)hal_get_cycles();
1308if( cycle > DEBUG_RPC_VFS_FILE_CREATE )
1309printk("\n[DBG] %s : thread %x enter on core[%x,%d] / cycle %d\n",
1310__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
1311#endif
1312
[23]1313    uint32_t      file_attr;
1314    vfs_inode_t * inode;
1315    xptr_t        file_xp;
1316    error_t       error;
1317
1318    // get client cluster identifier and pointer on RPC descriptor
[436]1319    cxy_t        client_cxy  = GET_CXY( xp );
1320    rpc_desc_t * desc        = GET_PTR( xp );
[23]1321
1322    // get arguments "file_attr" and "inode" from client RPC descriptor
1323    inode     = (vfs_inode_t *)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) );
1324    file_attr = (uint32_t)               hal_remote_lwd( XPTR( client_cxy , &desc->args[1] ) );
1325                       
1326    // call local kernel function
1327    error = vfs_file_create( inode,
1328                             file_attr,
1329                             &file_xp );
1330 
1331    // set output arguments
1332    hal_remote_swd( XPTR( client_cxy , &desc->args[2] ) , (uint64_t)file_xp );
1333    hal_remote_swd( XPTR( client_cxy , &desc->args[3] ) , (uint64_t)error );
[296]1334
[438]1335#if DEBUG_RPC_VFS_FILE_CREATE
1336cycle = (uint32_t)hal_get_cycles();
1337if( cycle > DEBUG_RPC_VFS_FILE_CREATE )
1338printk("\n[DBG] %s : thread %x exit / cycle %d\n",
1339__FUNCTION__ , CURRENT_THREAD , cycle );
1340#endif
[23]1341}
1342
1343/////////////////////////////////////////////////////////////////////////////////////////
[409]1344// [15]          Marshaling functions attached to RPC_VFS_FILE_DESTROY  (blocking)
[23]1345/////////////////////////////////////////////////////////////////////////////////////////
1346
1347///////////////////////////////////////////////////
1348void rpc_vfs_file_destroy_client( cxy_t        cxy,
1349                                  vfs_file_t * file )
1350{
[440]1351#if DEBUG_RPC_VFS_FILE_DESTROY
1352uint32_t cycle = (uint32_t)hal_get_cycles();
1353if( cycle > DEBUG_RPC_VFS_FILE_DESTROY )
1354printk("\n[DBG] %s : thread %x enter on core[%x,%d] / cycle %d\n",
1355__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
1356#endif
1357
[238]1358    assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
[23]1359
1360    // initialise RPC descriptor header
1361    rpc_desc_t  rpc;
1362    rpc.index    = RPC_VFS_FILE_DESTROY;
[416]1363    rpc.blocking = true;
[438]1364    rpc.responses = 1;
[23]1365
1366    // set input arguments in RPC descriptor
1367    rpc.args[0] = (uint64_t)(intptr_t)file;
1368   
[436]1369    // register RPC request in remote RPC fifo
[416]1370    rpc_send( cxy , &rpc );
[279]1371
[440]1372#if DEBUG_RPC_VFS_FILE_DESTROY
1373cycle = (uint32_t)hal_get_cycles();
1374if( cycle > DEBUG_RPC_VFS_FILE_DESTROY )
1375printk("\n[DBG] %s : thread %x exit / cycle %d\n",
1376__FUNCTION__ , CURRENT_THREAD , cycle );
1377#endif
[23]1378}
1379
1380/////////////////////////////////////////////
1381void rpc_vfs_file_destroy_server( xptr_t xp )
1382{
[440]1383#if DEBUG_RPC_VFS_FILE_DESTROY
1384uint32_t cycle = (uint32_t)hal_get_cycles();
1385if( cycle > DEBUG_RPC_VFS_FILE_DESTROY )
1386printk("\n[DBG] %s : thread %x enter on core[%x,%d] / cycle %d\n",
1387__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
1388#endif
1389
[23]1390    vfs_file_t * file;
1391
1392    // get client cluster identifier and pointer on RPC descriptor
[436]1393    cxy_t        client_cxy  = GET_CXY( xp );
1394    rpc_desc_t * desc        = GET_PTR( xp );
[23]1395
1396    // get arguments "dentry" from client RPC descriptor
1397    file = (vfs_file_t *)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) );
1398                       
1399    // call local kernel function
1400    vfs_file_destroy( file );
[296]1401
[440]1402#if DEBUG_RPC_VFS_FILE_DESTROY
1403cycle = (uint32_t)hal_get_cycles();
1404if( cycle > DEBUG_RPC_VFS_FILE_DESTROY )
1405printk("\n[DBG] %s : thread %x exit / cycle %d\n",
1406__FUNCTION__ , CURRENT_THREAD , cycle );
1407#endif
[23]1408}
1409
1410/////////////////////////////////////////////////////////////////////////////////////////
[409]1411// [16]          Marshaling functions attached to RPC_VFS_INODE_LOAD   (blocking)
[23]1412/////////////////////////////////////////////////////////////////////////////////////////
1413
[1]1414//////////////////////////////////////////////////
[238]1415void rpc_vfs_inode_load_client( cxy_t         cxy,
1416                                vfs_inode_t * parent_inode,    // in
1417                                char        * name,            // in
1418                                xptr_t        child_inode_xp,  // in
1419                                error_t     * error )          // out
1420{
1421    assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
1422
1423    // initialise RPC descriptor header
1424    rpc_desc_t  rpc;
1425    rpc.index    = RPC_VFS_INODE_LOAD;
[416]1426    rpc.blocking = true;
[438]1427    rpc.responses = 1;
[238]1428
1429    // set input arguments in RPC descriptor
1430    rpc.args[0] = (uint64_t)(intptr_t)parent_inode;
1431    rpc.args[1] = (uint64_t)(intptr_t)name;
1432    rpc.args[2] = (uint64_t)child_inode_xp;
1433
[436]1434    // register RPC request in remote RPC fifo
[416]1435    rpc_send( cxy , &rpc );
[238]1436
1437    // get output values from RPC descriptor
1438    *error   = (error_t)rpc.args[3];
[279]1439
[238]1440}
1441
1442///////////////////////////////////////////
1443void rpc_vfs_inode_load_server( xptr_t xp )
1444{
1445    error_t       error;
1446    vfs_inode_t * parent;
1447    xptr_t        child_xp;
1448    char        * name;
1449
1450    char          name_copy[CONFIG_VFS_MAX_NAME_LENGTH];
1451
1452    // get client cluster identifier and pointer on RPC descriptor
[436]1453    cxy_t        client_cxy  = GET_CXY( xp );
1454    rpc_desc_t * desc        = GET_PTR( xp );
[238]1455
1456    // get arguments "parent", "name", and "child_xp"
1457    parent     = (vfs_inode_t*)(intptr_t)hal_remote_lwd(XPTR(client_cxy , &desc->args[0]));
1458    name       = (char*)(intptr_t)       hal_remote_lwd(XPTR(client_cxy , &desc->args[1]));
1459    child_xp   = (xptr_t)                hal_remote_lwd(XPTR(client_cxy , &desc->args[2]));
1460
1461    // get name local copy
1462    hal_remote_strcpy( XPTR( local_cxy , name_copy ) ,
1463                       XPTR( client_cxy , name ) );
1464
1465    // call the kernel function
1466    error = vfs_inode_load( parent , name_copy , child_xp );
1467
1468    // set output argument
1469    hal_remote_swd( XPTR( client_cxy , &desc->args[3] ) , (uint64_t)error );
[296]1470
[238]1471}
1472
1473/////////////////////////////////////////////////////////////////////////////////////////
[409]1474// [17]          Marshaling functions attached to RPC_VFS_MAPPER_LOAD_ALL  (blocking)
[238]1475/////////////////////////////////////////////////////////////////////////////////////////
1476
1477///////////////////////////////////////////////////////
1478void rpc_vfs_mapper_load_all_client( cxy_t         cxy,
1479                                     vfs_inode_t * inode,      // in
1480                                     error_t     * error )     // out
1481{
1482    assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
1483
1484    // initialise RPC descriptor header
1485    rpc_desc_t  rpc;
[389]1486    rpc.index    = RPC_VFS_MAPPER_LOAD_ALL;
[416]1487    rpc.blocking = true;
[438]1488    rpc.responses = 1;
[238]1489
1490    // set input arguments in RPC descriptor
1491    rpc.args[0] = (uint64_t)(intptr_t)inode;
1492
[436]1493    // register RPC request in remote RPC fifo
[416]1494    rpc_send( cxy , &rpc );
[238]1495
1496    // get output values from RPC descriptor
1497    *error   = (error_t)rpc.args[1];
[279]1498
[238]1499}
1500
1501////////////////////////////////////////////////
1502void rpc_vfs_mapper_load_all_server( xptr_t xp )
1503{
1504    error_t       error;
1505    vfs_inode_t * inode;
1506
1507    // get client cluster identifier and pointer on RPC descriptor
[436]1508    cxy_t        client_cxy  = GET_CXY( xp );
1509    rpc_desc_t * desc        = GET_PTR( xp );
[238]1510
1511    // get arguments "parent", "name", and "child_xp"
1512    inode = (vfs_inode_t*)(intptr_t)hal_remote_lwd(XPTR(client_cxy , &desc->args[0]));
1513
1514    // call the kernel function
1515    error = vfs_mapper_load_all( inode );
1516
1517    // set output argument
[389]1518    hal_remote_swd( XPTR( client_cxy , &desc->args[1] ) , (uint64_t)error );
[296]1519
[238]1520}
1521
1522/////////////////////////////////////////////////////////////////////////////////////////
[409]1523// [18]          Marshaling functions attached to RPC_FATFS_GET_CLUSTER  (blocking)
[238]1524/////////////////////////////////////////////////////////////////////////////////////////
1525
1526//////////////////////////////////////////////////
[23]1527void rpc_fatfs_get_cluster_client( cxy_t      cxy,
1528                                   mapper_t * mapper,    // in
1529                                   uint32_t   first,     // in
[407]1530                                   uint32_t   index,     // in
[23]1531                                   uint32_t * cluster,   // out
1532                                   error_t  * error )    // out
1533{
[238]1534    assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
[23]1535
1536    // initialise RPC descriptor header
1537    rpc_desc_t  rpc;
1538    rpc.index    = RPC_FATFS_GET_CLUSTER;
[416]1539    rpc.blocking = true;
[438]1540    rpc.responses = 1;
[23]1541
1542    // set input arguments in RPC descriptor
1543    rpc.args[0] = (uint64_t)(intptr_t)mapper;
1544    rpc.args[1] = (uint64_t)first;
[407]1545    rpc.args[2] = (uint64_t)index;
[23]1546
1547    // register RPC request in remote RPC fifo
[416]1548    rpc_send( cxy , &rpc );
[23]1549
1550    // get output argument from rpc descriptor
1551    *cluster = (uint32_t)rpc.args[3];
1552    *error   = (error_t)rpc.args[4];
[279]1553
[23]1554}
1555
1556//////////////////////////////////////////////
1557void rpc_fatfs_get_cluster_server( xptr_t xp )
1558{
1559    mapper_t    * mapper;
1560    uint32_t      first;
[407]1561    uint32_t      index;
[23]1562    uint32_t      cluster;
1563    error_t       error;
1564
1565    // get client cluster identifier and pointer on RPC descriptor
[436]1566    cxy_t        client_cxy  = GET_CXY( xp );
[438]1567    rpc_desc_t * desc        = GET_PTR( xp );
[23]1568
1569    // get input arguments
1570    mapper = (mapper_t *)(intptr_t)hal_remote_lpt( XPTR( client_cxy , &desc->args[0] ) );
1571    first  = (uint32_t)            hal_remote_lw ( XPTR( client_cxy , &desc->args[1] ) );
[407]1572    index  = (uint32_t)            hal_remote_lw ( XPTR( client_cxy , &desc->args[2] ) );
[23]1573
1574    // call the kernel function
[407]1575    error = fatfs_get_cluster( mapper , first , index , &cluster );
[23]1576
1577    // set output argument
1578    hal_remote_swd( XPTR( client_cxy , &desc->args[3] ) , (uint64_t)cluster );
1579    hal_remote_swd( XPTR( client_cxy , &desc->args[4] ) , (uint64_t)error );
[296]1580
[23]1581}
1582
1583/////////////////////////////////////////////////////////////////////////////////////////
[409]1584// [20]          Marshaling functions attached to RPC_VMM_GET_VSEG  (blocking)
[23]1585/////////////////////////////////////////////////////////////////////////////////////////
1586
1587//////////////////////////////////////////////////
[389]1588void rpc_vmm_get_vseg_client( cxy_t       cxy,     
1589                              process_t * process,     // in 
1590                              intptr_t    vaddr,       // in 
1591                              xptr_t    * vseg_xp,     // out
1592                              error_t   * error )      // out
[1]1593{
[440]1594#if DEBUG_RPC_VMM_GET_VSEG
1595uint32_t cycle = (uint32_t)hal_get_cycles();
1596if( cycle > DEBUG_RPC_VMM_GET_VSEG )
1597printk("\n[DBG] %s : thread %x enter on core[%x,%d] / cycle %d\n",
1598__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
1599#endif
1600
[238]1601    assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
[1]1602
1603    // initialise RPC descriptor header
1604    rpc_desc_t  rpc;
[389]1605    rpc.index    = RPC_VMM_GET_VSEG;
[416]1606    rpc.blocking = true;
[438]1607    rpc.responses = 1;
[1]1608
1609    // set input arguments in RPC descriptor
1610    rpc.args[0] = (uint64_t)(intptr_t)process;
1611    rpc.args[1] = (uint64_t)vaddr;
1612
[436]1613    // register RPC request in remote RPC fifo
[416]1614    rpc_send( cxy , &rpc );
[1]1615
1616    // get output argument from rpc descriptor
1617    *vseg_xp = rpc.args[2];
[389]1618    *error   = (error_t)rpc.args[3];
[279]1619
[440]1620#if DEBUG_RPC_VMM_GET_VSEG
1621cycle = (uint32_t)hal_get_cycles();
1622if( cycle > DEBUG_RPC_VMM_GET_VSEG )
1623printk("\n[DBG] %s : thread %x exit on core[%x,%d] / cycle %d\n",
1624__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
1625#endif
[1]1626}
1627
[389]1628/////////////////////////////////////////
1629void rpc_vmm_get_vseg_server( xptr_t xp )
[1]1630{
[440]1631#if DEBUG_RPC_VMM_GET_VSEG
1632uint32_t cycle = (uint32_t)hal_get_cycles();
1633if( cycle > DEBUG_RPC_VMM_GET_VSEG )
1634printk("\n[DBG] %s : thread %x enter on core[%x,%d] / cycle %d\n",
1635__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
1636#endif
1637
[1]1638    process_t   * process;
1639    intptr_t      vaddr;
1640    vseg_t      * vseg_ptr;
1641    xptr_t        vseg_xp;
[389]1642    error_t       error;
[1]1643
1644    // get client cluster identifier and pointer on RPC descriptor
[436]1645    cxy_t        client_cxy  = GET_CXY( xp );
1646    rpc_desc_t * desc        = GET_PTR( xp );
[1]1647
1648    // get input argument from client RPC descriptor
1649    process = (process_t *)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) );
1650    vaddr   = (intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[1] ) );
1651   
1652    // call local kernel function
[389]1653    error = vmm_get_vseg( process , vaddr , &vseg_ptr );
[1]1654
[389]1655    // set output arguments to client RPC descriptor
1656    vseg_xp = XPTR( local_cxy , vseg_ptr );
[1]1657    hal_remote_swd( XPTR( client_cxy , &desc->args[2] ) , (uint64_t)vseg_xp );
[389]1658    hal_remote_swd( XPTR( client_cxy , &desc->args[3] ) , (uint64_t)error );
[296]1659
[440]1660#if DEBUG_RPC_VMM_GET_VSEG
1661cycle = (uint32_t)hal_get_cycles();
1662if( cycle > DEBUG_RPC_VMM_GET_VSEG )
1663printk("\n[DBG] %s : thread %x exit on core[%x,%d] / cycle %d\n",
1664__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
1665#endif
[1]1666}
1667
1668
1669/////////////////////////////////////////////////////////////////////////////////////////
[441]1670// [21]          Marshaling functions attached to RPC_VMM_GET_PTE  (blocking)
[1]1671/////////////////////////////////////////////////////////////////////////////////////////
1672
1673////////////////////////////////////////////
1674void rpc_vmm_get_pte_client( cxy_t       cxy,   
1675                             process_t * process,  // in
1676                             vpn_t       vpn,      // in
[407]1677                             bool_t      cow,      // in
[1]1678                             uint32_t  * attr,     // out
1679                             ppn_t     * ppn,      // out
1680                             error_t   * error )   // out
1681{
[440]1682#if DEBUG_RPC_VMM_GET_PTE
1683uint32_t cycle = (uint32_t)hal_get_cycles();
1684if( cycle > DEBUG_RPC_VMM_GET_PTE )
1685printk("\n[DBG] %s : thread %x enter on core[%x,%d] / cycle %d\n",
1686__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
1687#endif
1688
[238]1689    assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
[1]1690
1691    // initialise RPC descriptor header
1692    rpc_desc_t  rpc;
[441]1693    rpc.index    = RPC_VMM_GET_PTE;
[416]1694    rpc.blocking = true;
[438]1695    rpc.responses = 1;
[1]1696
1697    // set input arguments in RPC descriptor
1698    rpc.args[0] = (uint64_t)(intptr_t)process;
1699    rpc.args[1] = (uint64_t)vpn;
[407]1700    rpc.args[2] = (uint64_t)cow;
[1]1701
[436]1702    // register RPC request in remote RPC fifo
[416]1703    rpc_send( cxy , &rpc );
[1]1704
1705    // get output argument from rpc descriptor
[407]1706    *attr  = (uint32_t)rpc.args[3];
1707    *ppn   = (ppn_t)rpc.args[4];
1708    *error = (error_t)rpc.args[5];
[279]1709
[440]1710#if DEBUG_RPC_VMM_GET_PTE
1711cycle = (uint32_t)hal_get_cycles();
1712if( cycle > DEBUG_RPC_VMM_GET_PTE )
1713printk("\n[DBG] %s : thread %x exit on core[%x,%d] / cycle %d\n",
1714__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
1715#endif
[1]1716}
1717
1718////////////////////////////////////////
1719void rpc_vmm_get_pte_server( xptr_t xp )
1720{
[440]1721#if DEBUG_RPC_VMM_GET_PTE
1722uint32_t cycle = (uint32_t)hal_get_cycles();
1723if( cycle > DEBUG_RPC_VMM_GET_PTE )
1724printk("\n[DBG] %s : thread %x enter on core[%x,%d] / cycle %d\n",
1725__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
1726#endif
1727
[1]1728    process_t   * process;
1729    vpn_t         vpn;
[407]1730    bool_t        cow;
[1]1731    uint32_t      attr;
1732    ppn_t         ppn;
1733    error_t       error;
1734
1735    // get client cluster identifier and pointer on RPC descriptor
[436]1736    cxy_t        client_cxy  = GET_CXY( xp );
1737    rpc_desc_t * desc        = GET_PTR( xp );
[1]1738
1739    // get input argument "process" & "vpn" from client RPC descriptor
1740    process = (process_t *)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) );
1741    vpn     = (vpn_t)                hal_remote_lwd( XPTR( client_cxy , &desc->args[1] ) );
[407]1742    cow     = (bool_t)               hal_remote_lwd( XPTR( client_cxy , &desc->args[2] ) );
[1]1743   
1744    // call local kernel function
[407]1745    error = vmm_get_pte( process , vpn , cow , &attr , &ppn ); 
[1]1746
1747    // set output argument "attr" & "ppn" to client RPC descriptor
[407]1748    hal_remote_swd( XPTR( client_cxy , &desc->args[3] ) , (uint64_t)attr );
1749    hal_remote_swd( XPTR( client_cxy , &desc->args[4] ) , (uint64_t)ppn );
1750    hal_remote_swd( XPTR( client_cxy , &desc->args[5] ) , (uint64_t)error );
[296]1751
[440]1752#if DEBUG_RPC_VMM_GET_PTE
1753cycle = (uint32_t)hal_get_cycles();
1754if( cycle > DEBUG_RPC_VMM_GET_PTE )
1755printk("\n[DBG] %s : thread %x exit on core[%x,%d] / cycle %d\n",
1756__FUNCTION__ , CURRENT_THREAD , local_cxy, CURRENT_THREAD->core->lid , cycle );
1757#endif
[1]1758}
1759
1760/////////////////////////////////////////////////////////////////////////////////////////
[409]1761// [22]          Marshaling functions attached to RPC_KCM_ALLOC  (blocking)
[1]1762/////////////////////////////////////////////////////////////////////////////////////////
1763
[23]1764//////////////////////////////////////////
1765void rpc_kcm_alloc_client( cxy_t      cxy,
1766                           uint32_t   kmem_type,   // in
1767                           xptr_t *   buf_xp )     // out
[1]1768{
[238]1769    assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
[1]1770
1771    // initialise RPC descriptor header
1772    rpc_desc_t  rpc;
[441]1773    rpc.index    = RPC_KCM_ALLOC;
[416]1774    rpc.blocking = true;
[438]1775    rpc.responses = 1;
[1]1776
[23]1777    // set input arguments in RPC descriptor
1778    rpc.args[0] = (uint64_t)kmem_type;
1779
[436]1780    // register RPC request in remote RPC fifo
[416]1781    rpc_send( cxy , &rpc );
[1]1782
1783    // get output arguments from RPC descriptor
[23]1784    *buf_xp = (xptr_t)rpc.args[1];
[279]1785
[1]1786}
1787
[23]1788//////////////////////////////////////
1789void rpc_kcm_alloc_server( xptr_t xp )
[1]1790{
1791    // get client cluster identifier and pointer on RPC descriptor
[436]1792    cxy_t        client_cxy  = GET_CXY( xp );
[438]1793    rpc_desc_t * desc        = GET_PTR( xp );
[1]1794
[23]1795    // get input argument "kmem_type" from client RPC descriptor
1796    uint32_t kmem_type = (uint32_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) );
1797
1798    // allocates memory for kcm
[1]1799    kmem_req_t  req;
[23]1800    req.type  = kmem_type;
[1]1801    req.flags = AF_ZERO;
[23]1802    void * buf_ptr = kmem_alloc( &req );
[1]1803
1804    // set output argument
[23]1805    xptr_t buf_xp = XPTR( local_cxy , buf_ptr );
1806    hal_remote_swd( XPTR( client_cxy , &desc->args[1] ) , (uint64_t)buf_xp );
[296]1807
[1]1808}   
1809
1810/////////////////////////////////////////////////////////////////////////////////////////
[409]1811// [23]          Marshaling functions attached to RPC_KCM_FREE  (blocking)
[1]1812/////////////////////////////////////////////////////////////////////////////////////////
1813
[23]1814/////////////////////////////////////////
1815void rpc_kcm_free_client( cxy_t      cxy,
1816                          void     * buf,          // in
1817                          uint32_t   kmem_type )   // in
[1]1818{
[238]1819    assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
[1]1820
1821    // initialise RPC descriptor header
1822    rpc_desc_t  rpc;
[441]1823    rpc.index    = RPC_KCM_FREE;
[416]1824    rpc.blocking = true;
[438]1825    rpc.responses = 1;
[1]1826
1827    // set input arguments in RPC descriptor
[23]1828    rpc.args[0] = (uint64_t)(intptr_t)buf;
1829    rpc.args[1] = (uint64_t)kmem_type;
[1]1830
[436]1831    // register RPC request in remote RPC fifo
[416]1832    rpc_send( cxy , &rpc );
[279]1833
[1]1834}
1835
[23]1836/////////////////////////////////////
1837void rpc_kcm_free_server( xptr_t xp )
[1]1838{
1839    // get client cluster identifier and pointer on RPC descriptor
[436]1840    cxy_t        client_cxy  = GET_CXY( xp );
[438]1841    rpc_desc_t * desc        = GET_PTR( xp );
[1]1842
[23]1843    // get input arguments "buf" and "kmem_type" from client RPC descriptor
1844    void     * buf = (void *)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) );
1845    uint32_t   kmem_type = (uint32_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[1] ) );
[1]1846
1847    // releases memory
1848    kmem_req_t  req;
[23]1849    req.type = kmem_type;
1850    req.ptr  = buf;
1851    kmem_free( &req );
[296]1852
[1]1853}   
1854
1855/////////////////////////////////////////////////////////////////////////////////////////
[265]1856// [24]          Marshaling functions attached to RPC_MAPPER_MOVE_BUFFER
[1]1857/////////////////////////////////////////////////////////////////////////////////////////
1858
[265]1859///////////////////////////////////////////////////
1860void rpc_mapper_move_buffer_client( cxy_t      cxy,
1861                                    mapper_t * mapper,        // in
1862                                    bool_t     to_buffer,     // in
1863                                    bool_t     is_user,       // in
1864                                    uint32_t   file_offset,   // in
[313]1865                                    uint64_t   buffer,        // in
[265]1866                                    uint32_t   size,          // in
1867                                    error_t  * error )        // out
[1]1868{
[238]1869    assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
[1]1870
1871    // initialise RPC descriptor header
1872    rpc_desc_t  rpc;
[265]1873    rpc.index    = RPC_MAPPER_MOVE_BUFFER;
[416]1874    rpc.blocking = true;
[438]1875    rpc.responses = 1;
[1]1876
1877    // set input arguments in RPC descriptor
1878    rpc.args[0] = (uint64_t)(intptr_t)mapper;
[23]1879    rpc.args[1] = (uint64_t)to_buffer;
[265]1880    rpc.args[2] = (uint64_t)is_user;
1881    rpc.args[3] = (uint64_t)file_offset;
[313]1882    rpc.args[4] = (uint64_t)buffer;
[265]1883    rpc.args[5] = (uint64_t)size;
[1]1884
[436]1885    // register RPC request in remote RPC fifo
[416]1886    rpc_send( cxy , &rpc );
[1]1887
[23]1888    // get output values from RPC descriptor
[265]1889    *error     = (error_t)rpc.args[6];
[279]1890
[1]1891}
1892
[265]1893///////////////////////////////////////////////
1894void rpc_mapper_move_buffer_server( xptr_t xp )
[1]1895{
[23]1896    mapper_t * mapper;
[265]1897    bool_t     to_buffer;
1898    bool_t     is_user;
[23]1899    uint32_t   file_offset;
[313]1900    void     * user_buffer;
1901    xptr_t     kern_buffer;
[23]1902    uint32_t   size;
1903    error_t    error;
[1]1904
1905    // get client cluster identifier and pointer on RPC descriptor
[436]1906    cxy_t        client_cxy  = GET_CXY( xp );
1907    rpc_desc_t * desc        = GET_PTR( xp );
[1]1908
[23]1909    // get arguments from client RPC descriptor
1910    mapper      = (mapper_t *)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) );
1911    to_buffer   =                       hal_remote_lwd( XPTR( client_cxy , &desc->args[1] ) );
[265]1912    is_user     =                       hal_remote_lwd( XPTR( client_cxy , &desc->args[2] ) );
1913    file_offset =                       hal_remote_lwd( XPTR( client_cxy , &desc->args[3] ) );
1914    size        =                       hal_remote_lwd( XPTR( client_cxy , &desc->args[5] ) );
[1]1915
[23]1916    // call local kernel function
[313]1917    if( is_user )
1918    {
1919        user_buffer = (void *)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[4] ) );
[1]1920
[315]1921        error = mapper_move_user( mapper,
1922                                  to_buffer,
1923                                  file_offset,
1924                                  user_buffer,
1925                                  size );
[313]1926    }
1927    else
1928    {
1929        kern_buffer = (xptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[4] ) );
1930
[315]1931        error = mapper_move_kernel( mapper,
1932                                    to_buffer,
1933                                    file_offset,
1934                                    kern_buffer,
1935                                    size );
[313]1936    }
1937
[23]1938    // set output argument to client RPC descriptor
[265]1939    hal_remote_swd( XPTR( client_cxy , &desc->args[6] ) , (uint64_t)error );
[296]1940
[1]1941}
1942
[313]1943/////////////////////////////////////////////////////////////////////////////////////////
[409]1944// [25]          Marshaling functions attached to RPC_MAPPER_GET_PAGE (blocking)
[313]1945/////////////////////////////////////////////////////////////////////////////////////////
1946
1947///////////////////////////////////////////////////////
1948void rpc_mapper_get_page_client( cxy_t             cxy,
1949                                 struct mapper_s * mapper,     // in
1950                                 uint32_t          index,      // in
1951                                 page_t         ** page )      // out
1952{
1953    assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
1954
1955    // initialise RPC descriptor header
1956    rpc_desc_t  rpc;
1957    rpc.index    = RPC_MAPPER_GET_PAGE;
[416]1958    rpc.blocking = true;
[438]1959    rpc.responses = 1;
[313]1960
1961    // set input arguments in RPC descriptor
1962    rpc.args[0] = (uint64_t)(intptr_t)mapper;
1963    rpc.args[1] = (uint64_t)index;
1964
[436]1965    // register RPC request in remote RPC fifo
[416]1966    rpc_send( cxy , &rpc );
[313]1967
1968    // get output values from RPC descriptor
1969    *page = (page_t *)(intptr_t)rpc.args[2];
1970
1971}
1972
1973////////////////////////////////////////////
1974void rpc_mapper_get_page_server( xptr_t xp )
1975{
1976    // get client cluster identifier and pointer on RPC descriptor
[436]1977    cxy_t        cxy  = GET_CXY( xp );
1978    rpc_desc_t * desc = GET_PTR( xp );
[313]1979
1980    // get input arguments from client RPC descriptor
1981    mapper_t * mapper = (mapper_t *)(intptr_t)hal_remote_lwd( XPTR( cxy , &desc->args[0] ) );
1982    uint32_t   index  = (uint32_t)            hal_remote_lwd( XPTR( cxy , &desc->args[1] ) );
1983   
1984    // call local pmem allocator
1985    page_t * page = mapper_get_page( mapper , index ); 
1986
1987    // set output arguments into client RPC descriptor
1988    hal_remote_swd( XPTR( cxy , &desc->args[1] ) , (uint64_t)(intptr_t)page );
1989
1990}
1991
[407]1992/////////////////////////////////////////////////////////////////////////////////////////
[409]1993// [26]          Marshaling functions attached to RPC_VMM_CREATE_VSEG (blocking)
[407]1994/////////////////////////////////////////////////////////////////////////////////////////
[313]1995
[407]1996////////////////////////////////////////////////////////
1997void rpc_vmm_create_vseg_client( cxy_t              cxy,
1998                                 struct process_s * process,
1999                                 vseg_type_t        type,
2000                                 intptr_t           base,
2001                                 uint32_t           size,
2002                                 uint32_t           file_offset,
2003                                 uint32_t           file_size,
2004                                 xptr_t             mapper_xp,
2005                                 cxy_t              vseg_cxy,
2006                                 struct vseg_s   ** vseg )
2007{
2008    assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
2009
2010    // initialise RPC descriptor header
2011    rpc_desc_t  rpc;
2012    rpc.index    = RPC_VMM_CREATE_VSEG;
[416]2013    rpc.blocking = true;
[438]2014    rpc.responses = 1;
[407]2015
2016    // set input arguments in RPC descriptor
2017    rpc.args[0] = (uint64_t)(intptr_t)process;
2018    rpc.args[1] = (uint64_t)type;
2019    rpc.args[2] = (uint64_t)base;
2020    rpc.args[3] = (uint64_t)size;
2021    rpc.args[4] = (uint64_t)file_offset;
2022    rpc.args[5] = (uint64_t)file_size;
2023    rpc.args[6] = (uint64_t)mapper_xp;
2024    rpc.args[7] = (uint64_t)vseg_cxy;
2025
[436]2026    // register RPC request in remote RPC fifo
[416]2027    rpc_send( cxy , &rpc );
[407]2028
2029    // get output values from RPC descriptor
2030    *vseg = (vseg_t *)(intptr_t)rpc.args[8];
2031
2032}
2033
2034////////////////////////////////////////////
2035void rpc_vmm_create_vseg_server( xptr_t xp )
2036{
2037    // get client cluster identifier and pointer on RPC descriptor
[436]2038    cxy_t        cxy  = GET_CXY( xp );
2039    rpc_desc_t * desc = GET_PTR( xp );
[407]2040
2041    // get input arguments from client RPC descriptor
2042    process_t * process     = (process_t *)(intptr_t)hal_remote_lwd( XPTR(cxy , &desc->args[0]));
2043    vseg_type_t type        = (vseg_type_t)(uint32_t)hal_remote_lwd( XPTR(cxy , &desc->args[1]));
2044    intptr_t    base        = (intptr_t)             hal_remote_lwd( XPTR(cxy , &desc->args[2]));
2045    uint32_t    size        = (uint32_t)             hal_remote_lwd( XPTR(cxy , &desc->args[3]));
2046    uint32_t    file_offset = (uint32_t)             hal_remote_lwd( XPTR(cxy , &desc->args[4]));
2047    uint32_t    file_size   = (uint32_t)             hal_remote_lwd( XPTR(cxy , &desc->args[5]));
2048    xptr_t      mapper_xp   = (xptr_t)               hal_remote_lwd( XPTR(cxy , &desc->args[6]));
2049    cxy_t       vseg_cxy    = (cxy_t)(uint32_t)      hal_remote_lwd( XPTR(cxy , &desc->args[7]));
2050   
2051    // call local kernel function
2052    vseg_t * vseg = vmm_create_vseg( process,
2053                                     type,
2054                                     base,
2055                                     size,
2056                                     file_offset,
2057                                     file_size,
2058                                     mapper_xp,
2059                                     vseg_cxy ); 
2060
2061    // set output arguments into client RPC descriptor
2062    hal_remote_swd( XPTR( cxy , &desc->args[8] ) , (uint64_t)(intptr_t)vseg );
2063
2064}
2065
2066/////////////////////////////////////////////////////////////////////////////////////////
[450]2067// [27]         undefined slot
[407]2068/////////////////////////////////////////////////////////////////////////////////////////
2069
[408]2070/////////////////////////////////////////////////////////////////////////////////////////
[409]2071// [28]          Marshaling functions attached to RPC_VMM_SET_COW (blocking)
[408]2072/////////////////////////////////////////////////////////////////////////////////////////
2073
2074/////////////////////////////////////////////
2075void rpc_vmm_set_cow_client( cxy_t       cxy,
2076                             process_t * process )
2077{
2078    assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
2079
2080    // initialise RPC descriptor header
2081    rpc_desc_t  rpc;
2082    rpc.index    = RPC_VMM_SET_COW;
[416]2083    rpc.blocking = true;
[438]2084    rpc.responses = 1;
[408]2085
2086    // set input arguments in RPC descriptor
2087    rpc.args[0] = (uint64_t)(intptr_t)process;
2088
[436]2089    // register RPC request in remote RPC fifo
[416]2090    rpc_send( cxy , &rpc );
[408]2091
2092}
2093
2094////////////////////////////////////////
2095void rpc_vmm_set_cow_server( xptr_t xp )
2096{
2097    process_t * process;
2098
2099    // get client cluster identifier and pointer on RPC descriptor
[436]2100    cxy_t        cxy  = GET_CXY( xp );
2101    rpc_desc_t * desc = GET_PTR( xp );
[408]2102
2103    // get input arguments from client RPC descriptor
[428]2104    process = (process_t *)(intptr_t)hal_remote_lwd( XPTR(cxy , &desc->args[0]));
[408]2105   
2106    // call local kernel function
2107    vmm_set_cow( process );
2108
2109}
2110
[428]2111/////////////////////////////////////////////////////////////////////////////////////////
2112// [29]          Marshaling functions attached to RPC_VMM_DISPLAY (blocking)
2113/////////////////////////////////////////////////////////////////////////////////////////
[1]2114
[428]2115/////////////////////////////////////////////
2116void rpc_vmm_display_client( cxy_t       cxy,
2117                             process_t * process,
2118                             bool_t      detailed )
2119{
2120    assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n");
2121
2122    // initialise RPC descriptor header
2123    rpc_desc_t  rpc;
2124    rpc.index    = RPC_VMM_DISPLAY;
2125    rpc.blocking = true;
[438]2126    rpc.responses = 1;
[428]2127
2128    // set input arguments in RPC descriptor
2129    rpc.args[0] = (uint64_t)(intptr_t)process;
2130    rpc.args[1] = (uint64_t)detailed;
2131
[436]2132    // register RPC request in remote RPC fifo
[428]2133    rpc_send( cxy , &rpc );
2134
2135}
2136
2137////////////////////////////////////////
2138void rpc_vmm_display_server( xptr_t xp )
2139{
2140    process_t * process;
2141    bool_t      detailed;
2142
2143    // get client cluster identifier and pointer on RPC descriptor
[436]2144    cxy_t        cxy  = GET_CXY( xp );
2145    rpc_desc_t * desc = GET_PTR( xp );
[428]2146
2147    // get input arguments from client RPC descriptor
2148    process  = (process_t *)(intptr_t)hal_remote_lwd( XPTR(cxy , &desc->args[0]));
2149    detailed = (bool_t)               hal_remote_lwd( XPTR(cxy , &desc->args[1]));
2150   
2151    // call local kernel function
2152    vmm_display( process , detailed );
2153
2154}
2155
2156
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