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source: trunk/kernel/kern/kernel_init.c @ 416

Last change on this file since 416 was 409, checked in by alain, 7 years ago
Fix bugs in exec
File size: 52.6 KB

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1	/*
2	* kernel_init.c - kernel parallel initialization
3	*
4	* Authors : Mohamed Lamine Karaoui (2015)
5	* Alain Greiner (2016,2017)
6	*
7	* Copyright (c) Sorbonne Universites
8	*
9	* This file is part of ALMOS-MKH.
10	*
11	* ALMOS-MKH is free software; you can redistribute it and/or modify it
12	* under the terms of the GNU General Public License as published by
13	* the Free Software Foundation; version 2.0 of the License.
14	*
15	* ALMOS-MKH is distributed in the hope that it will be useful, but
16	* WITHOUT ANY WARRANTY; without even the implied warranty of
17	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18	* General Public License for more details.
19	*
20	* You should have received a copy of the GNU General Public License
21	* along with ALMOS-MKH; if not, write to the Free Software Foundation,
22	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
23	*/
24
25	#include <kernel_config.h>
26	#include <errno.h>
27	#include <hal_types.h>
28	#include <hal_special.h>
29	#include <hal_context.h>
30	#include <hal_irqmask.h>
31	#include <hal_ppm.h>
32	#include <barrier.h>
33	#include <remote_barrier.h>
34	#include <remote_fifo.h>
35	#include <core.h>
36	#include <list.h>
37	#include <xlist.h>
38	#include <xhtab.h>
39	#include <thread.h>
40	#include <scheduler.h>
41	#include <kmem.h>
42	#include <cluster.h>
43	#include <string.h>
44	#include <memcpy.h>
45	#include <ppm.h>
46	#include <page.h>
47	#include <chdev.h>
48	#include <boot_info.h>
49	#include <dqdt.h>
50	#include <dev_mmc.h>
51	#include <dev_dma.h>
52	#include <dev_iob.h>
53	#include <dev_ioc.h>
54	#include <dev_txt.h>
55	#include <dev_pic.h>
56	#include <printk.h>
57	#include <vfs.h>
58	#include <devfs.h>
59	#include <mapper.h>
60
61	#define KERNEL_INIT_SYNCHRO 0xA5A5B5B5
62
63	///////////////////////////////////////////////////////////////////////////////////////////
64	// All the following global variables are replicated in all clusters.
65	// They are initialised by the kernel_init() function.
66	//
67	// WARNING : The section names have been defined to control the base addresses of the
68	// boot_info structure and the idle thread descriptors, through the kernel.ld script:
69	// - the boot_info structure is built by the bootloader, and used by kernel_init.
70	// it must be the first object in the kdata segment.
71	// - the array of idle threads descriptors must be placed on the first page boundary after
72	// the boot_info structure in the kdata segment.
73	///////////////////////////////////////////////////////////////////////////////////////////
74
75	// This variable defines the local boot_info structure
76	__attribute__((section(".kinfo")))
77	boot_info_t boot_info;
78
79	// This variable defines the "idle" threads descriptors array
80	__attribute__((section(".kidle")))
81	char idle_threads[CONFIG_THREAD_DESC_SIZE *
82	CONFIG_MAX_LOCAL_CORES] CONFIG_PPM_PAGE_ALIGNED;
83
84	// This variable defines the local cluster manager
85	__attribute__((section(".kdata")))
86	cluster_t cluster_manager CONFIG_CACHE_LINE_ALIGNED;
87
88	// This variable defines the TXT0 kernel terminal (TX only)
89	__attribute__((section(".kdata")))
90	chdev_t txt0_chdev CONFIG_CACHE_LINE_ALIGNED;
91
92	// This variables define the kernel process0 descriptor
93	__attribute__((section(".kdata")))
94	process_t process_zero CONFIG_CACHE_LINE_ALIGNED;
95
96	// This variable defines extended pointers on the distributed chdevs
97	__attribute__((section(".kdata")))
98	chdev_directory_t chdev_dir CONFIG_CACHE_LINE_ALIGNED;
99
100	// This variable contains the input IRQ indexes for the IOPIC controller
101	__attribute__((section(".kdata")))
102	iopic_input_t iopic_input CONFIG_CACHE_LINE_ALIGNED;
103
104	// This variable contains the input IRQ indexes for the LAPIC controller
105	__attribute__((section(".kdata")))
106	lapic_input_t lapic_input CONFIG_CACHE_LINE_ALIGNED;
107
108	// This variable defines the local cluster identifier
109	__attribute__((section(".kdata")))
110	cxy_t local_cxy CONFIG_CACHE_LINE_ALIGNED;
111
112	// This variable is used for CP0 cores synchronisation in kernel_init()
113	__attribute__((section(".kdata")))
114	remote_barrier_t global_barrier CONFIG_CACHE_LINE_ALIGNED;
115
116	// This variable is used for local cores synchronisation in kernel_init()
117	__attribute__((section(".kdata")))
118	barrier_t local_barrier CONFIG_CACHE_LINE_ALIGNED;
119
120	// This variable defines the array of supported File System contexts
121	__attribute__((section(".kdata")))
122	vfs_ctx_t fs_context[FS_TYPES_NR] CONFIG_CACHE_LINE_ALIGNED;
123
124
125	// TODO remove these debug variables used dans sys_read()
126
127	#if CONFIG_READ_DEBUG
128	uint32_t enter_sys_read;
129	uint32_t exit_sys_read;
130
131	uint32_t enter_devfs_move;
132	uint32_t exit_devfs_move;
133
134	uint32_t enter_txt_read;
135	uint32_t exit_txt_read;
136
137	uint32_t enter_chdev_cmd;
138	uint32_t exit_chdev_cmd;
139
140	uint32_t enter_chdev_server;
141	uint32_t exit_chdev_server;
142
143	uint32_t enter_tty_cmd;
144	uint32_t exit_tty_cmd;
145
146	uint32_t enter_tty_isr;
147	uint32_t exit_tty_isr;
148	#endif
149
150	///////////////////////////////////////////////////////////////////////////////////////////
151	// This function displays the ALMOS_MKH banner.
152	///////////////////////////////////////////////////////////////////////////////////////////
153	static void print_banner( uint32_t nclusters , uint32_t ncores )
154	{
155	printk("\n"
156	" _ __ __ _____ ______ __ __ _ __ _ _ \n"
157	" /\\ \| \| \| \\ / \| / ___ \\ / _____\| \| \\ / \| \| \| / / \| \| \| \| \n"
158	" / \\ \| \| \| \\/ \| \| / \\ \| \| / \| \\/ \| \| \|/ / \| \| \| \| \n"
159	" / /\\ \\ \| \| \| \|\\ /\| \| \| \| \| \| \| \|_____ ___ \| \|\\ /\| \| \| / \| \|___\| \| \n"
160	" / /__\\ \\ \| \| \| \| \\/ \| \| \| \| \| \| \\_____ \\ \|___\| \| \| \\/ \| \| \| \\ \| ___ \| \n"
161	" / ______ \\ \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|\\ \\ \| \| \| \| \n"
162	" / / \\ \\ \| \|____ \| \| \| \| \| \\___/ \| _____/ \| \| \| \| \| \| \| \\ \\ \| \| \| \| \n"
163	" /_/ \\_\\ \|______\| \|_\| \|_\| \\_____/ \|______/ \|_\| \|_\| \|_\| \\_\\ \|_\| \|_\| \n"
164	"\n\n\t\t Advanced Locality Management Operating System / Multi Kernel Hybrid\n"
165	"\n\n\t\t Version 0.0 / %d cluster(s) / %d core(s) per cluster / cycle %d\n\n",
166	nclusters , ncores , hal_time_stamp() );
167	}
168
169
170	///////////////////////////////////////////////////////////////////////////////////////////
171	// This function initializes the TXT0 chdev descriptor, that is the "kernel terminal",
172	// shared by all kernel instances for debug messages.
173	// It is a global variable (replicated in all clusters), because this terminal is used
174	// before the kmem allocator initialisation, but only the instance in cluster containing
175	// the calling core is registered in the "chdev_dir" directory.
176	// As this TXT0 chdev supports only the TXT_SYNC_WRITE command, we don't create
177	// a server thread, we don't allocate a WTI, and we don't initialize the waiting queue.
178	///////////////////////////////////////////////////////////////////////////////////////////
179	// @ info : pointer on the local boot-info structure.
180	///////////////////////////////////////////////////////////////////////////////////////////
181	static void txt0_device_init( boot_info_t * info )
182	{
183	boot_device_t * dev_tbl; // pointer on array of devices in boot_info
184	uint32_t dev_nr; // actual number of devices in this cluster
185	xptr_t base; // remote pointer on segment base
186	uint32_t func; // device functional index
187	uint32_t impl; // device implementation index
188	uint32_t i; // device index in dev_tbl
189	uint32_t x; // X cluster coordinate
190	uint32_t y; // Y cluster coordinate
191	uint32_t channels; // number of channels
192
193	// get number of peripherals and base of devices array from boot_info
194	dev_nr = info->ext_dev_nr;
195	dev_tbl = info->ext_dev;
196
197	// loop on external peripherals to find TXT device
198	for( i = 0 ; i < dev_nr ; i++ )
199	{
200	base = dev_tbl[i].base;
201	func = FUNC_FROM_TYPE( dev_tbl[i].type );
202	impl = IMPL_FROM_TYPE( dev_tbl[i].type );
203	channels = dev_tbl[i].channels;
204
205	if (func == DEV_FUNC_TXT )
206	{
207	assert( (channels > 0) , __FUNCTION__ ,
208	"numner of TXT channels cannot be 0\n");
209
210	// initializes TXT0 basic fields
211	txt0_chdev.func = func;
212	txt0_chdev.impl = impl;
213	txt0_chdev.channel = 0;
214	txt0_chdev.base = base;
215	txt0_chdev.is_rx = false;
216
217	// initializes lock
218	remote_spinlock_init( XPTR( local_cxy , &txt0_chdev.wait_lock ) );
219
220	// TXT specific initialisation:
221	// no server thread & no IRQ routing for channel 0
222	dev_txt_init( &txt0_chdev );
223
224	// register the TXT0 in all chdev_dir[x][y] structures
225	for( x = 0 ; x < info->x_size ; x++ )
226	{
227	for( y = 0 ; y < info->y_size ; y++ )
228	{
229	cxy_t cxy = (x<<info->y_width) + y;
230	hal_remote_swd( XPTR( cxy , &chdev_dir.txt_tx[0] ) ,
231	XPTR( local_cxy , &txt0_chdev ) );
232	}
233	}
234	}
235	} // end loop on devices
236	} // end txt0_device_init()
237
238	///////////////////////////////////////////////////////////////////////////////////////////
239	// This function allocates memory and initializes the chdev descriptors for the internal
240	// peripherals contained in the local cluster, other than the LAPIC, as specified by
241	// the boot_info, including the linking with the driver for the specified implementation.
242	// The relevant entries in all copies of the devices directory are initialised.
243	///////////////////////////////////////////////////////////////////////////////////////////
244	// @ info : pointer on the local boot-info structure.
245	///////////////////////////////////////////////////////////////////////////////////////////
246	static void internal_devices_init( boot_info_t * info )
247	{
248	boot_device_t * dev_tbl; // pointer on array of internaldevices in boot_info
249	uint32_t dev_nr; // actual number of devices in this cluster
250	xptr_t base; // remote pointer on segment base
251	uint32_t func; // device functionnal index
252	uint32_t impl; // device implementation index
253	uint32_t i; // device index in dev_tbl
254	uint32_t x; // X cluster coordinate
255	uint32_t y; // Y cluster coordinate
256	uint32_t channels; // number of channels
257	uint32_t channel; // channel index
258	chdev_t * chdev_ptr; // local pointer on created chdev
259
260	// get number of internal peripherals and base from boot_info
261	dev_nr = info->int_dev_nr;
262	dev_tbl = info->int_dev;
263
264	// loop on internal peripherals
265	for( i = 0 ; i < dev_nr ; i++ )
266	{
267	base = dev_tbl[i].base;
268	channels = dev_tbl[i].channels;
269	func = FUNC_FROM_TYPE( dev_tbl[i].type );
270	impl = IMPL_FROM_TYPE( dev_tbl[i].type );
271
272	//////////////////////////
273	if( func == DEV_FUNC_MMC )
274	{
275	assert( (channels == 1) , __FUNCTION__ ,
276	"MMC device must be single channel\n" );
277
278	// create chdev in local cluster
279	chdev_ptr = chdev_create( func,
280	impl,
281	0, // channel
282	false, // direction
283	base );
284
285	assert( (chdev_ptr != NULL) , __FUNCTION__ ,
286	"cannot allocate memory for MMC chdev\n" );
287
288	// make MMC specific initialisation
289	dev_mmc_init( chdev_ptr );
290
291	// set the MMC field in all chdev_dir[x][y] structures
292	for( x = 0 ; x < info->x_size ; x++ )
293	{
294	for( y = 0 ; y < info->y_size ; y++ )
295	{
296	cxy_t cxy = (x<<info->y_width) + y;
297	hal_remote_swd( XPTR( cxy , &chdev_dir.mmc[local_cxy] ),
298	XPTR( local_cxy , chdev_ptr ) );
299	}
300	}
301
302	#if( CONFIG_KINIT_DEBUG & 0x1 )
303	if( hal_time_stamp() > CONFIG_KINIT_DEBUG )
304	printk("\n[DBG] %s : created MMC in cluster %x / chdev = %x\n",
305	__FUNCTION__ , local_cxy , chdev_ptr );
306	#endif
307	}
308	///////////////////////////////
309	else if( func == DEV_FUNC_DMA )
310	{
311	// create one chdev per channel in local cluster
312	for( channel = 0 ; channel < channels ; channel++ )
313	{
314	// create chdev[channel] in local cluster
315	chdev_ptr = chdev_create( func,
316	impl,
317	channel,
318	false, // direction
319	base );
320
321	assert( (chdev_ptr != NULL) , __FUNCTION__ ,
322	"cannot allocate memory for DMA chdev" );
323
324	// make DMA specific initialisation
325	dev_dma_init( chdev_ptr );
326
327	// initialize only the DMA[channel] field in the local chdev_dir[x][y]
328	// structure because the DMA device is not remotely accessible.
329	chdev_dir.dma[channel] = XPTR( local_cxy , chdev_ptr );
330
331	#if( CONFIG_KINIT_DEBUG & 0x1 )
332	if( hal_time_stamp() > CONFIG_KINIT_DEBUG )
333	printk("\n[DBG] %s : created DMA[%d] in cluster %x / chdev = %x\n",
334	__FUNCTION__ , channel , local_cxy , chdev_ptr );
335	#endif
336	}
337	}
338	}
339	} // end internal_devices_init()
340
341	///////////////////////////////////////////////////////////////////////////////////////////
342	// This function allocates memory and initializes the chdev descriptors for the
343	// external (shared) peripherals other than the IOPIC, as specified by the boot_info.
344	// This includes the dynamic linking with the driver for the specified implementation.
345	// These chdev descriptors are distributed on all clusters, using a modulo on a global
346	// index, identically computed in all clusters.
347	// This function is executed in all clusters by the CP0 core, that computes a global index
348	// for all external chdevs. Each CP0 core creates only the chdevs that must be placed in
349	// the local cluster, because the global index matches the local index.
350	// The relevant entries in all copies of the devices directory are initialised.
351	///////////////////////////////////////////////////////////////////////////////////////////
352	// @ info : pointer on the local boot-info structure.
353	///////////////////////////////////////////////////////////////////////////////////////////
354	static void external_devices_init( boot_info_t * info )
355	{
356	boot_device_t * dev_tbl; // pointer on array of external devices in boot_info
357	uint32_t dev_nr; // actual number of external devices
358	xptr_t base; // remote pointer on segment base
359	uint32_t func; // device functionnal index
360	uint32_t impl; // device implementation index
361	uint32_t i; // device index in dev_tbl
362	uint32_t x; // X cluster coordinate
363	uint32_t y; // Y cluster coordinate
364	uint32_t channels; // number of channels
365	uint32_t channel; // channel index
366	uint32_t directions; // number of directions (1 or 2)
367	uint32_t rx; // direction index (0 or 1)
368	uint32_t first_channel; // used in loop on channels for TXT
369	chdev_t * chdev; // local pointer on one channel_device descriptor
370	uint32_t ext_chdev_gid; // global index of external chdev
371
372	// get number of peripherals and base of devices array from boot_info
373	dev_nr = info->ext_dev_nr;
374	dev_tbl = info->ext_dev;
375
376	// initializes global index (PIC is already placed in cluster 0
377	ext_chdev_gid = 1;
378
379	// loop on external peripherals
380	for( i = 0 ; i < dev_nr ; i++ )
381	{
382	base = dev_tbl[i].base;
383	channels = dev_tbl[i].channels;
384	func = FUNC_FROM_TYPE( dev_tbl[i].type );
385	impl = IMPL_FROM_TYPE( dev_tbl[i].type );
386
387	// There is one chdev per direction for NIC and for TXT
388	if((func == DEV_FUNC_NIC) \|\| (func == DEV_FUNC_TXT)) directions = 2;
389	else directions = 1;
390
391	// The TXT0 chdev has already been created
392	if (func == DEV_FUNC_TXT) first_channel = 1;
393	else first_channel = 0;
394
395	// do nothing for ROM, that does not require a device descriptor.
396	if( func == DEV_FUNC_ROM ) continue;
397
398	// do nothing for PIC, that is already initialized
399	if( func == DEV_FUNC_PIC ) continue;
400
401	// check PIC device initialized
402	assert( (chdev_dir.pic != XPTR_NULL ) , __FUNCTION__ ,
403	"PIC device must be initialized before other devices\n" );
404
405	// check external device functionnal type
406	assert( ( (func == DEV_FUNC_IOB) \|\|
407	(func == DEV_FUNC_IOC) \|\|
408	(func == DEV_FUNC_TXT) \|\|
409	(func == DEV_FUNC_NIC) \|\|
410	(func == DEV_FUNC_FBF) ) , __FUNCTION__ ,
411	"undefined external peripheral type\n" );
412
413	// loops on channels
414	for( channel = first_channel ; channel < channels ; channel++ )
415	{
416	// loop on directions
417	for( rx = 0 ; rx < directions ; rx++ )
418	{
419	// compute target cluster for chdev[func,channel,direction]
420	uint32_t offset = ext_chdev_gid % ( info->x_size * info->y_size );
421	uint32_t cx = offset / info->y_size;
422	uint32_t cy = offset % info->y_size;
423	uint32_t target_cxy = (cx<<info->y_width) + cy;
424
425	// allocate and initialize a local chdev
426	// when local cluster matches target cluster
427	if( target_cxy == local_cxy )
428	{
429	chdev = chdev_create( func,
430	impl,
431	channel,
432	rx, // direction
433	base );
434
435	assert( (chdev != NULL), __FUNCTION__ ,
436	"cannot allocate external device" );
437
438	// make device type specific initialisation
439	if ( func == DEV_FUNC_IOB ) dev_iob_init( chdev );
440	else if( func == DEV_FUNC_IOC ) dev_ioc_init( chdev );
441	else if( func == DEV_FUNC_TXT ) dev_txt_init( chdev );
442	else if( func == DEV_FUNC_NIC ) dev_nic_init( chdev );
443	else if( func == DEV_FUNC_FBF ) dev_fbf_init( chdev );
444
445	// all external (shared) devices are remotely accessible
446	// initialize the replicated chdev_dir[x][y] structures
447	// defining the extended pointers on chdev descriptors
448	xptr_t * entry;
449
450	if(func==DEV_FUNC_IOB ) entry = &chdev_dir.iob;
451	if(func==DEV_FUNC_IOC ) entry = &chdev_dir.ioc[channel];
452	if(func==DEV_FUNC_FBF ) entry = &chdev_dir.fbf[channel];
453	if((func==DEV_FUNC_TXT) && (rx==0)) entry = &chdev_dir.txt_tx[channel];
454	if((func==DEV_FUNC_TXT) && (rx==1)) entry = &chdev_dir.txt_rx[channel];
455	if((func==DEV_FUNC_NIC) && (rx==0)) entry = &chdev_dir.nic_tx[channel];
456	if((func==DEV_FUNC_NIC) && (rx==1)) entry = &chdev_dir.nic_rx[channel];
457
458	for( x = 0 ; x < info->x_size ; x++ )
459	{
460	for( y = 0 ; y < info->y_size ; y++ )
461	{
462	cxy_t cxy = (x<<info->y_width) + y;
463	hal_remote_swd( XPTR( cxy , entry ),
464	XPTR( local_cxy , chdev ) );
465	}
466	}
467
468	#if( CONFIG_KINIT_DEBUG & 0x1 )
469	if( hal_time_stamp() > CONFIG_KINIT_DEBUG )
470	printk("\n[DBG] %s : create chdev %s / channel = %d / rx = %d / cluster %x / chdev = %x\n",
471	__FUNCTION__ , chdev_func_str( func ), channel , rx , local_cxy , chdev );
472	#endif
473	} // end if match
474
475	// increment chdev global index (matching or not)
476	ext_chdev_gid++;
477
478	} // end loop on directions
479	} // end loop on channels
480	} // end loop on devices
481	} // end external_devices_init()
482
483	///////////////////////////////////////////////////////////////////////////////////////////
484	// This function is called by CP0 in cluster 0 to allocate memory and initialize the PIC
485	// device, namely the informations attached to the external IOPIC controller, that
486	// must be replicated in all clusters (struct iopic_input).
487	// This initialisation must be done before other devices initialisation because the IRQ
488	// routing infrastructure is required for both internal and external devices init.
489	///////////////////////////////////////////////////////////////////////////////////////////
490	// @ info : pointer on the local boot-info structure.
491	///////////////////////////////////////////////////////////////////////////////////////////
492	static void iopic_init( boot_info_t * info )
493	{
494	boot_device_t * dev_tbl; // pointer on boot_info external devices array
495	uint32_t dev_nr; // actual number of external devices
496	xptr_t base; // remote pointer on segment base
497	uint32_t func; // device functionnal index
498	uint32_t impl; // device implementation index
499	uint32_t i; // device index in dev_tbl
500	uint32_t x; // cluster X coordinate
501	uint32_t y; // cluster Y coordinate
502	bool_t found; // IOPIC found
503	chdev_t * chdev; // pointer on PIC chdev descriptor
504
505	// get number of external peripherals and base of array from boot_info
506	dev_nr = info->ext_dev_nr;
507	dev_tbl = info->ext_dev;
508
509	// loop on external peripherals to get the IOPIC
510	for( i = 0 , found = false ; i < dev_nr ; i++ )
511	{
512	func = FUNC_FROM_TYPE( dev_tbl[i].type );
513
514	if( func == DEV_FUNC_PIC )
515	{
516	base = dev_tbl[i].base;
517	impl = IMPL_FROM_TYPE( dev_tbl[i].type );
518	found = true;
519	break;
520	}
521	}
522
523	assert( found , __FUNCTION__ , "PIC device not found\n" );
524
525	// allocate and initialize the PIC chdev in cluster 0
526	chdev = chdev_create( DEV_FUNC_PIC,
527	impl,
528	0, // channel
529	0, // direction,
530	base );
531
532	assert( (chdev != NULL), __FUNCTION__ , "no memory for PIC chdev\n" );
533
534	// make PIC device type specific initialisation
535	dev_pic_init( chdev );
536
537	// register, in all clusters, the extended pointer
538	// on PIC chdev in "chdev_dir" array
539	xptr_t * entry = &chdev_dir.pic;
540
541	for( x = 0 ; x < info->x_size ; x++ )
542	{
543	for( y = 0 ; y < info->y_size ; y++ )
544	{
545	cxy_t cxy = (x<<info->y_width) + y;
546	hal_remote_swd( XPTR( cxy , entry ) ,
547	XPTR( local_cxy , chdev ) );
548	}
549	}
550
551	// initialize, in all clusters, the "iopic_input" structure
552	// defining how external IRQs are connected to IOPIC
553
554	// register default value for unused inputs
555	for( x = 0 ; x < info->x_size ; x++ )
556	{
557	for( y = 0 ; y < info->y_size ; y++ )
558	{
559	cxy_t cxy = (x<<info->y_width) + y;
560	hal_remote_memset( XPTR( cxy , &iopic_input ) , 0xFF , sizeof(iopic_input_t) );
561	}
562	}
563
564	// register input IRQ index for valid inputs
565	uint32_t id; // input IRQ index
566	uint8_t valid; // input IRQ is connected
567	uint32_t type; // source device type
568	uint8_t channel; // source device channel
569	uint8_t is_rx; // source device direction
570	uint32_t * ptr; // local pointer on one field in iopic_input stucture
571
572	for( id = 0 ; id < CONFIG_MAX_EXTERNAL_IRQS ; id++ )
573	{
574	valid = dev_tbl[i].irq[id].valid;
575	type = dev_tbl[i].irq[id].dev_type;
576	channel = dev_tbl[i].irq[id].channel;
577	is_rx = dev_tbl[i].irq[id].is_rx;
578	func = FUNC_FROM_TYPE( type );
579
580	// get pointer on relevant field in iopic_input
581	if( valid )
582	{
583	if ( func == DEV_FUNC_IOC ) ptr = &iopic_input.ioc[channel];
584	else if((func == DEV_FUNC_TXT) && (is_rx == 0)) ptr = &iopic_input.txt_tx[channel];
585	else if((func == DEV_FUNC_TXT) && (is_rx != 0)) ptr = &iopic_input.txt_rx[channel];
586	else if((func == DEV_FUNC_NIC) && (is_rx == 0)) ptr = &iopic_input.nic_tx[channel];
587	else if((func == DEV_FUNC_NIC) && (is_rx != 0)) ptr = &iopic_input.nic_rx[channel];
588	else if( func == DEV_FUNC_IOB ) ptr = &iopic_input.iob;
589	else panic( "illegal source device for IOPIC input" );
590
591	// set one entry in all "iopic_input" structures
592	for( x = 0 ; x < info->x_size ; x++ )
593	{
594	for( y = 0 ; y < info->y_size ; y++ )
595	{
596	cxy_t cxy = (x<<info->y_width) + y;
597	hal_remote_swd( XPTR( cxy , ptr ) , id );
598	}
599	}
600	}
601	}
602
603	#if( CONFIG_KINIT_DEBUG & 0x1 )
604	if( hal_time_stamp() > CONFIG_KINIT_DEBUG )
605	{
606	printk("\n[DBG] %s created PIC chdev in cluster %x at cycle %d\n",
607	__FUNCTION__ , local_cxy , (uint32_t)hal_time_stamp() );
608	dev_pic_inputs_display();
609	}
610	#endif
611
612	} // end iopic_init()
613
614	///////////////////////////////////////////////////////////////////////////////////////////
615	// This function is called by all CP0s in all cluster to complete the PIC device
616	// initialisation, namely the informations attached to the LAPIC controller.
617	// This initialisation must be done after the IOPIC initialisation, but before other
618	// devices initialisation because the IRQ routing infrastructure is required for both
619	// internal and external devices initialisation.
620	///////////////////////////////////////////////////////////////////////////////////////////
621	// @ info : pointer on the local boot-info structure.
622	///////////////////////////////////////////////////////////////////////////////////////////
623	static void lapic_init( boot_info_t * info )
624	{
625	boot_device_t * dev_tbl; // pointer on boot_info internal devices array
626	uint32_t dev_nr; // number of internal devices
627	uint32_t i; // device index in dev_tbl
628	xptr_t base; // remote pointer on segment base
629	uint32_t func; // device functionnal type in boot_info
630	bool_t found; // LAPIC found
631
632	// get number of internal peripherals and base
633	dev_nr = info->int_dev_nr;
634	dev_tbl = info->int_dev;
635
636	// loop on internal peripherals to get the lapic device
637	for( i = 0 , found = false ; i < dev_nr ; i++ )
638	{
639	func = FUNC_FROM_TYPE( dev_tbl[i].type );
640
641	if( func == DEV_FUNC_ICU )
642	{
643	base = dev_tbl[i].base;
644	found = true;
645	break;
646	}
647	}
648
649	// if the LAPIC controller is not defined in the boot_info,
650	// we simply don't initialize the PIC extensions in the kernel,
651	// making the assumption that the LAPIC related informations
652	// are hidden in the hardware specific PIC driver.
653	if( found )
654	{
655	// initialise the PIC extensions for
656	// the core descriptor and core manager extensions
657	dev_pic_extend_init( (uint32_t *)GET_PTR( base ) );
658
659	// initialize the "lapic_input" structure
660	// defining how internal IRQs are connected to LAPIC
661	uint32_t id;
662	uint8_t valid;
663	uint8_t channel;
664	uint32_t func;
665
666	for( id = 0 ; id < CONFIG_MAX_INTERNAL_IRQS ; id++ )
667	{
668	valid = dev_tbl[i].irq[id].valid;
669	func = FUNC_FROM_TYPE( dev_tbl[i].irq[id].dev_type );
670	channel = dev_tbl[i].irq[id].channel;
671
672	if( valid ) // only valid local IRQs are registered
673	{
674	if ( func == DEV_FUNC_MMC ) lapic_input.mmc = id;
675	else if( func == DEV_FUNC_DMA ) lapic_input.dma[channel] = id;
676	else assert( false , __FUNCTION__ , "illegal source device for LAPIC input" );
677	}
678	}
679	}
680	} // end lapic_init()
681
682	///////////////////////////////////////////////////////////////////////////////////////////
683	// This static function returns the identifiers of the calling core.
684	///////////////////////////////////////////////////////////////////////////////////////////
685	// @ info : pointer on boot_info structure.
686	// @ lid : [out] core local index in cluster.
687	// @ cxy : [out] cluster identifier.
688	// @ lid : [out] core global identifier (hardware).
689	// @ return 0 if success / return EINVAL if not found.
690	///////////////////////////////////////////////////////////////////////////////////////////
691	static error_t get_core_identifiers( boot_info_t * info,
692	lid_t * lid,
693	cxy_t * cxy,
694	gid_t * gid )
695	{
696	uint32_t i;
697	gid_t global_id;
698
699	// get global identifier from hardware register
700	global_id = hal_get_gid();
701
702	// makes an associative search in boot_info to get (cxy,lid) from global_id
703	for( i = 0 ; i < info->cores_nr ; i++ )
704	{
705	if( global_id == info->core[i].gid )
706	{
707	*lid = info->core[i].lid;
708	*cxy = info->core[i].cxy;
709	*gid = global_id;
710	return 0;
711	}
712	}
713	return EINVAL;
714	}
715
716	///////////////////////////////////////////////////////////////////////////////////////////
717	// This function is the entry point for the kernel initialisation.
718	// It is executed by all cores in all clusters, but only core[0], called CP0,
719	// initializes the shared resources such as the cluster manager, or the local peripherals.
720	// To comply with the multi-kernels paradigm, it accesses only local cluster memory, using
721	// only information contained in the local boot_info_t structure, set by the bootloader.
722	// Only CP0 in cluster 0 print the log messages.
723	///////////////////////////////////////////////////////////////////////////////////////////
724	// @ info : pointer on the local boot-info structure.
725	///////////////////////////////////////////////////////////////////////////////////////////
726	void kernel_init( boot_info_t * info )
727	{
728	lid_t core_lid = -1; // running core local index
729	cxy_t core_cxy = -1; // running core cluster identifier
730	gid_t core_gid; // running core hardware identifier
731	cluster_t * cluster; // pointer on local cluster manager
732	core_t * core; // pointer on running core descriptor
733	thread_t * thread; // pointer on idle thread descriptor
734
735	xptr_t vfs_root_inode_xp; // extended pointer on VFS root inode
736	xptr_t devfs_dev_inode_xp; // extended pointer on DEVFS dev inode
737	xptr_t devfs_external_inode_xp; // extended pointer on DEVFS external inode
738	xptr_t devfs_internal_inode_xp; // extended pointer on DEVFS internal inode
739
740	error_t error;
741	reg_t status; // running core status register
742
743	cxy_t io_cxy = info->io_cxy;
744
745	assert( (io_cxy == ((info->x_size - 1)<<(info->y_width)) + (info->y_size - 1)) ,
746	__FUNCTION__ , "illegal IO cluter identifier\n" );
747
748	/////////////////////////////////////////////////////////////////////////////////
749	// STEP 0 : Each core get its core identifier from boot_info, and makes
750	// a partial initialisation of its private idle thread descriptor.
751	// CP0 initializes the "local_cxy" global variable.
752	// CP0 in cluster IO initializes the TXT0 chdev to print log messages.
753	/////////////////////////////////////////////////////////////////////////////////
754
755	error = get_core_identifiers( info,
756	&core_lid,
757	&core_cxy,
758	&core_gid );
759
760	// CP0 initializes cluster identifier
761	if( core_lid == 0 ) local_cxy = info->cxy;
762
763	// each core gets a pointer on its private idle thread descriptor
764	thread = (thread_t )( idle_threads + (core_lid CONFIG_THREAD_DESC_SIZE) );
765
766	// each core registers this thread pointer in hardware register
767	hal_set_current_thread( thread );
768
769	// each core register core descriptor pointer in idle thread descriptor
770	thread->core = &LOCAL_CLUSTER->core_tbl[core_lid];
771
772	#if CONFIG_LOCKS_DEBUG
773	list_root_init( &thread->locks_root );
774	xlist_root_init( XPTR( local_cxy , &thread->xlocks_root ) );
775	#endif
776
777	// CP0 in I/O cluster initialises TXT0 chdev descriptor
778	if( (core_lid == 0) && (core_cxy == io_cxy) ) txt0_device_init( info );
779
780	/////////////////////////////////////////////////////////////////////////////////
781	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
782	(info->x_size * info->y_size) );
783	barrier_wait( &local_barrier , info->cores_nr );
784
785	if( (core_lid == 0) && (local_cxy == 0) )
786	kinit_dmsg("\n[DBG] %s : exit barrier 0 : TXT0 initialized / cycle %d\n",
787	__FUNCTION__, hal_time_stamp() );
788
789	/////////////////////////////////////////////////////////////////////////////
790	// STEP 1 : all cores check core identifier.
791	// CP0 initializes the local cluster manager.
792	// This includes the memory allocators.
793	/////////////////////////////////////////////////////////////////////////////
794
795	// all cores check identifiers
796	if( error )
797	{
798	panic("illegal core identifiers gid = %x / cxy = %x / lid = %d",
799	core_lid , core_cxy , core_lid );
800	}
801
802	// CP0 initializes cluster manager
803	if( core_lid == 0 )
804	{
805	error = cluster_init( info );
806
807	if( error )
808	{
809	panic("cannot initialise cluster %x", local_cxy );
810	}
811	}
812
813	/////////////////////////////////////////////////////////////////////////////////
814	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
815	(info->x_size * info->y_size) );
816	barrier_wait( &local_barrier , info->cores_nr );
817	/////////////////////////////////////////////////////////////////////////////////
818
819	if( (core_lid == 0) && (local_cxy == 0) )
820	kinit_dmsg("\n[DBG] %s : exit barrier 1 : clusters initialised / cycle %d\n",
821	__FUNCTION__, hal_time_stamp() );
822
823	/////////////////////////////////////////////////////////////////////////////////
824	// STEP 2 : CP0 initializes the process_zero descriptor.
825	// CP0 in cluster 0 initializes the IOPIC device.
826	/////////////////////////////////////////////////////////////////////////////////
827
828	// all cores get pointer on local cluster manager & core descriptor
829	cluster = &cluster_manager;
830	core = &cluster->core_tbl[core_lid];
831
832	// all CP0s initialize the process_zero descriptor
833	if( core_lid == 0 ) process_zero_init( &process_zero );
834
835	// CP0 in cluster 0 initializes the PIC chdev,
836	if( (core_lid == 0) && (local_cxy == 0) ) iopic_init( info );
837
838	////////////////////////////////////////////////////////////////////////////////
839	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
840	(info->x_size * info->y_size) );
841	barrier_wait( &local_barrier , info->cores_nr );
842	////////////////////////////////////////////////////////////////////////////////
843
844	if( (core_lid == 0) && (local_cxy == 0) )
845	kinit_dmsg("\n[DBG] %s : exit barrier 2 : PIC initialised / cycle %d\n",
846	__FUNCTION__, hal_time_stamp() );
847
848	////////////////////////////////////////////////////////////////////////////////
849	// STEP 3 : CP0 initializes the distibuted LAPIC descriptor.
850	// CP0 initializes the internal chdev descriptors
851	// CP0 initialize the local external chdev descriptors
852	////////////////////////////////////////////////////////////////////////////////
853
854	// all CP0s initialize their local LAPIC extension,
855	if( core_lid == 0 ) lapic_init( info );
856
857	// CP0 scan the internal (private) peripherals,
858	// and allocates memory for the corresponding chdev descriptors.
859	if( core_lid == 0 ) internal_devices_init( info );
860
861
862	// All CP0s contribute to initialise external peripheral chdev descriptors.
863	// Each CP0[cxy] scan the set of external (shared) peripherals (but the TXT0),
864	// and allocates memory for the chdev descriptors that must be placed
865	// on the (cxy) cluster according to the global index value.
866
867	if( core_lid == 0 ) external_devices_init( info );
868
869	/////////////////////////////////////////////////////////////////////////////////
870	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
871	(info->x_size * info->y_size) );
872	barrier_wait( &local_barrier , info->cores_nr );
873	/////////////////////////////////////////////////////////////////////////////////
874
875	if( (core_lid == 0) && (local_cxy == 0) )
876	kinit_dmsg("\n[DBG] %s : exit barrier 3 : all chdev initialised / cycle %d\n",
877	__FUNCTION__, hal_time_stamp());
878
879	/////////////////////////////////////////////////////////////////////////////////
880	// STEP 4 : All cores enable IPI (Inter Procesor Interrupt),
881	// Alh cores initialize IDLE thread.
882	// Only CP0 in cluster 0 creates the VFS root inode.
883	// It access the boot device to initialize the file system context.
884	/////////////////////////////////////////////////////////////////////////////////
885
886	#if CONFIG_KINIT_DEBUG
887	chdev_dir_display();
888	#endif
889
890	// All cores enable the shared IPI channel
891	dev_pic_enable_ipi();
892	hal_enable_irq( &status );
893
894	// all cores initialize the idle thread descriptor
895	error = thread_kernel_init( thread,
896	THREAD_IDLE,
897	&thread_idle_func,
898	NULL,
899	core_lid );
900	if( error )
901	{
902	panic("core[%x][%d] cannot initialize idle thread",
903	local_cxy , core_lid );
904	}
905
906	// all cores unblock idle thread, and register it in scheduler
907	thread_unblock( XPTR( local_cxy , thread ) , THREAD_BLOCKED_GLOBAL );
908	core->scheduler.idle = thread;
909
910	#if CONFIG_KINIT_DEBUG
911	sched_display( core_lid );
912	#endif
913
914	// CPO in cluster 0 creates the VFS root
915	if( (core_lid == 0) && (local_cxy == 0 ) )
916	{
917	vfs_root_inode_xp = XPTR_NULL;
918
919	// File System must be FATFS in this implementation,
920	// but other File System can be introduced here
921	if( CONFIG_VFS_ROOT_IS_FATFS )
922	{
923	// 1. allocate memory for FATFS context in cluster 0
924	fatfs_ctx_t * fatfs_ctx = fatfs_ctx_alloc();
925
926	assert( (fatfs_ctx != NULL) , __FUNCTION__ ,
927	"cannot create FATFS context in cluster 0\n" );
928
929	// 2. access boot device to initialize FATFS context
930	fatfs_ctx_init( fatfs_ctx );
931
932	// 3. get various informations from FATFS context
933	uint32_t root_dir_cluster = fatfs_ctx->root_dir_cluster;
934	uint32_t cluster_size = fatfs_ctx->bytes_per_sector *
935	fatfs_ctx->sectors_per_cluster;
936	uint32_t total_clusters = fatfs_ctx->fat_sectors_count << 7;
937
938	// 4. create VFS root inode in cluster 0
939	error = vfs_inode_create( XPTR_NULL, // dentry_xp
940	FS_TYPE_FATFS, // fs_type
941	INODE_TYPE_DIR, // inode_type
942	(void *)(intptr_t)root_dir_cluster, // extend
943	0, // attr
944	0, // rights
945	0, // uid
946	0, // gid
947	&vfs_root_inode_xp ); // return
948
949	assert( (error == 0) , __FUNCTION__ ,
950	"cannot create VFS root inode\n" );
951
952	// 5. initialize VFS context for FAT in cluster 0
953	vfs_ctx_init( FS_TYPE_FATFS, // file system type
954	0, // attributes
955	total_clusters,
956	cluster_size,
957	vfs_root_inode_xp, // VFS root
958	fatfs_ctx ); // extend
959
960	// 6. check initialisation
961	vfs_ctx_t * vfs_ctx = &fs_context[FS_TYPE_FATFS];
962	assert( (((fatfs_ctx_t *)vfs_ctx->extend)->sectors_per_cluster == 8),
963	__FUNCTION__ , "illegal value for FATFS context in cluster %x\n", local_cxy );
964	}
965	else
966	{
967	panic("root FS must be FATFS");
968	}
969
970	// register VFS root inode in process_zero descriptor of cluster 0
971	process_zero.vfs_root_xp = vfs_root_inode_xp;
972	process_zero.vfs_cwd_xp = vfs_root_inode_xp;
973	}
974
975	/////////////////////////////////////////////////////////////////////////////////
976	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
977	(info->x_size * info->y_size) );
978	barrier_wait( &local_barrier , info->cores_nr );
979	/////////////////////////////////////////////////////////////////////////////////
980
981	if( (core_lid == 0) && (local_cxy == 0) )
982	kinit_dmsg("\n[DBG] %s : exit barrier 4 : VFS_root = %l in cluster 0 / cycle %d\n",
983	__FUNCTION__, vfs_root_inode_xp , hal_time_stamp());
984
985	/////////////////////////////////////////////////////////////////////////////////
986	// STEP 5 : Other CP0s allocate memory for the selected FS context,
987	// and initialise both the local FS context and the local VFS context
988	// from values stored in cluster 0.
989	// They get the VFS root inode extended pointer from cluster 0.
990	/////////////////////////////////////////////////////////////////////////////////
991
992	if( (core_lid == 0) && (local_cxy != 0) )
993	{
994	// File System must be FATFS in this implementation,
995	// but other File System can be introduced here
996	if( CONFIG_VFS_ROOT_IS_FATFS )
997	{
998	// 1. allocate memory for local FATFS context
999	fatfs_ctx_t * local_fatfs_ctx = fatfs_ctx_alloc();
1000
1001	assert( (local_fatfs_ctx != NULL) , __FUNCTION__ ,
1002	"cannot create FATFS context in cluster %x\n", local_cxy );
1003
1004	// 2. get local pointer on VFS context for FATFS
1005	vfs_ctx_t * vfs_ctx = &fs_context[FS_TYPE_FATFS];
1006
1007	// 3. get local pointer on FATFS context in cluster 0
1008	fatfs_ctx_t * remote_fatfs_ctx = hal_remote_lpt( XPTR( 0 , &vfs_ctx->extend ) );
1009
1010	// 4. copy FATFS context from cluster 0 to local cluster
1011	hal_remote_memcpy( XPTR( local_cxy , local_fatfs_ctx ),
1012	XPTR( 0 , remote_fatfs_ctx ), sizeof(fatfs_ctx_t) );
1013
1014	// 5. copy VFS context from cluster 0 to local cluster
1015	hal_remote_memcpy( XPTR( local_cxy , vfs_ctx ),
1016	XPTR( 0 , vfs_ctx ), sizeof(vfs_ctx_t) );
1017
1018	// 6. update extend field in local copy of VFS context
1019	vfs_ctx->extend = local_fatfs_ctx;
1020
1021	// 7. check initialisation
1022	assert( (((fatfs_ctx_t *)vfs_ctx->extend)->sectors_per_cluster == 8),
1023	__FUNCTION__ , "illegal value for FATFS context in cluster %x\n", local_cxy );
1024	}
1025
1026	// get extended pointer on VFS root inode from cluster 0
1027	vfs_root_inode_xp = hal_remote_lwd( XPTR( 0 , &process_zero.vfs_root_xp ) );
1028
1029	// update local process_zero descriptor
1030	process_zero.vfs_root_xp = vfs_root_inode_xp;
1031	process_zero.vfs_cwd_xp = vfs_root_inode_xp;
1032	}
1033
1034	/////////////////////////////////////////////////////////////////////////////////
1035	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
1036	(info->x_size * info->y_size) );
1037	barrier_wait( &local_barrier , info->cores_nr );
1038	/////////////////////////////////////////////////////////////////////////////////
1039
1040	if( (core_lid == 0) && (local_cxy == 0) )
1041	kinit_dmsg("\n[DBG] %s : exit barrier 5 : VFS_root = %l in cluster IO / cycle %d\n",
1042	__FUNCTION__, vfs_root_inode_xp , hal_time_stamp() );
1043
1044	/////////////////////////////////////////////////////////////////////////////////
1045	// STEP 6 : CP0 in cluster IO makes the global DEVFS tree initialisation:
1046	// It creates the DEVFS directory "dev", and the DEVFS "external"
1047	// directory in cluster IO and mount these inodes into VFS.
1048	/////////////////////////////////////////////////////////////////////////////////
1049
1050	if( (core_lid == 0) && (local_cxy == io_cxy) )
1051	{
1052	// create "dev" and "external" directories.
1053	devfs_global_init( process_zero.vfs_root_xp,
1054	&devfs_dev_inode_xp,
1055	&devfs_external_inode_xp );
1056
1057	// creates the DEVFS context in cluster IO
1058	devfs_ctx_t * devfs_ctx = devfs_ctx_alloc();
1059
1060	assert( (devfs_ctx != NULL) , __FUNCTION__ ,
1061	"cannot create DEVFS context in cluster IO\n");
1062
1063	// register DEVFS root and external directories
1064	devfs_ctx_init( devfs_ctx, devfs_dev_inode_xp, devfs_external_inode_xp );
1065	}
1066
1067	/////////////////////////////////////////////////////////////////////////////////
1068	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
1069	(info->x_size * info->y_size) );
1070	barrier_wait( &local_barrier , info->cores_nr );
1071	/////////////////////////////////////////////////////////////////////////////////
1072
1073	if( (core_lid == 0) && (local_cxy == 0) )
1074	kinit_dmsg("\n[DBG] %s : exit barrier 6 : dev_root = %l in cluster IO / cycle %d\n",
1075	__FUNCTION__, devfs_dev_inode_xp , hal_time_stamp() );
1076
1077	/////////////////////////////////////////////////////////////////////////////////
1078	// STEP 7 : All CP0s complete in parallel the DEVFS tree initialization.
1079	// Each CP0 get the "dev" and "external" extended pointers from
1080	// values stored in cluster IO.
1081	// Then each CP0 in cluster(i) creates the DEVFS "internal directory,
1082	// and creates the pseudo-files for all chdevs in cluster (i).
1083	/////////////////////////////////////////////////////////////////////////////////
1084
1085	if( core_lid == 0 )
1086	{
1087	// get extended pointer on "extend" field of VFS context for DEVFS in cluster IO
1088	xptr_t extend_xp = XPTR( io_cxy , &fs_context[FS_TYPE_DEVFS].extend );
1089
1090	// get pointer on DEVFS context in cluster IO
1091	devfs_ctx_t * devfs_ctx = hal_remote_lpt( extend_xp );
1092
1093	devfs_dev_inode_xp = hal_remote_lwd( XPTR( io_cxy ,
1094	&devfs_ctx->dev_inode_xp ) );
1095	devfs_external_inode_xp = hal_remote_lwd( XPTR( io_cxy ,
1096	&devfs_ctx->external_inode_xp ) );
1097
1098	// populate DEVFS in all clusters
1099	devfs_local_init( devfs_dev_inode_xp,
1100	devfs_external_inode_xp,
1101	&devfs_internal_inode_xp );
1102	}
1103
1104	/////////////////////////////////////////////////////////////////////////////////
1105	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
1106	(info->x_size * info->y_size) );
1107	barrier_wait( &local_barrier , info->cores_nr );
1108	/////////////////////////////////////////////////////////////////////////////////
1109
1110	if( (core_lid == 0) && (local_cxy == 0) )
1111	kinit_dmsg("\n[DBG] %s : exit barrier 7 : dev_root = %l in cluster 0 / cycle %d\n",
1112	__FUNCTION__, devfs_dev_inode_xp , hal_time_stamp() );
1113
1114	/////////////////////////////////////////////////////////////////////////////////
1115	// STEP 8 : CP0 in I/O cluster creates the first user process (process_init)
1116	/////////////////////////////////////////////////////////////////////////////////
1117
1118	if( (core_lid == 0) && (local_cxy == io_cxy) )
1119	{
1120	process_init_create();
1121	}
1122
1123	/////////////////////////////////////////////////////////////////////////////////
1124	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
1125	(info->x_size * info->y_size) );
1126	barrier_wait( &local_barrier , info->cores_nr );
1127	/////////////////////////////////////////////////////////////////////////////////
1128
1129	#if CONFIG_KINIT_DEBUG
1130	sched_display( core_lid );
1131	#endif
1132
1133	if( (core_lid == 0) && (local_cxy == 0) )
1134	kinit_dmsg("\n[DBG] %s : exit barrier 8 : process init created / cycle %d\n",
1135	__FUNCTION__ , hal_time_stamp() );
1136
1137	/////////////////////////////////////////////////////////////////////////////////
1138	// STEP 9 : CP0 in cluster 0 print banner
1139	/////////////////////////////////////////////////////////////////////////////////
1140
1141	if( (core_lid == 0) && (local_cxy == io_cxy) )
1142	{
1143	print_banner( (info->x_size * info->y_size) , info->cores_nr );
1144
1145	#if CONFIG_KINIT_DEBUG
1146
1147	vfs_display( vfs_root_inode_xp );
1148
1149	printk("\n\n***** memory fooprint for main kernel objects\n\n"
1150	" - thread descriptor : %d bytes\n"
1151	" - process descriptor : %d bytes\n"
1152	" - cluster manager : %d bytes\n"
1153	" - chdev descriptor : %d bytes\n"
1154	" - core descriptor : %d bytes\n"
1155	" - scheduler : %d bytes\n"
1156	" - rpc fifo : %d bytes\n"
1157	" - page descriptor : %d bytes\n"
1158	" - mapper root : %d bytes\n"
1159	" - ppm manager : %d bytes\n"
1160	" - kcm manager : %d bytes\n"
1161	" - khm manager : %d bytes\n"
1162	" - vmm manager : %d bytes\n"
1163	" - gpt root : %d bytes\n"
1164	" - list item : %d bytes\n"
1165	" - xlist item : %d bytes\n"
1166	" - spinlock : %d bytes\n"
1167	" - remote spinlock : %d bytes\n"
1168	" - rwlock : %d bytes\n"
1169	" - remote rwlock : %d bytes\n",
1170	sizeof( thread_t ),
1171	sizeof( process_t ),
1172	sizeof( cluster_t ),
1173	sizeof( chdev_t ),
1174	sizeof( core_t ),
1175	sizeof( scheduler_t ),
1176	sizeof( remote_fifo_t ),
1177	sizeof( page_t ),
1178	sizeof( mapper_t ),
1179	sizeof( ppm_t ),
1180	sizeof( kcm_t ),
1181	sizeof( khm_t ),
1182	sizeof( vmm_t ),
1183	sizeof( gpt_t ),
1184	sizeof( list_entry_t ),
1185	sizeof( xlist_entry_t ),
1186	sizeof( spinlock_t ),
1187	sizeof( remote_spinlock_t ),
1188	sizeof( rwlock_t ),
1189	sizeof( remote_rwlock_t ));
1190	#endif
1191
1192	}
1193
1194	// each core activates its private TICK IRQ
1195	dev_pic_enable_timer( CONFIG_SCHED_TICK_MS_PERIOD );
1196
1197	// each core jump to thread_idle_func
1198	thread_idle_func();
1199	}
1200

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