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source: trunk/kernel/kern/kernel_init.c @ 406

Last change on this file since 406 was 406, checked in by alain, 8 years ago
This version executed successfully the user "init" process on a mono-processor TSAR architecture.
File size: 50.6 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 <core.h>
35	#include <list.h>
36	#include <xlist.h>
37	#include <xhtab.h>
38	#include <thread.h>
39	#include <scheduler.h>
40	#include <kmem.h>
41	#include <cluster.h>
42	#include <string.h>
43	#include <memcpy.h>
44	#include <ppm.h>
45	#include <page.h>
46	#include <chdev.h>
47	#include <boot_info.h>
48	#include <dqdt.h>
49	#include <dev_mmc.h>
50	#include <dev_dma.h>
51	#include <dev_iob.h>
52	#include <dev_ioc.h>
53	#include <dev_txt.h>
54	#include <dev_pic.h>
55	#include <printk.h>
56	#include <vfs.h>
57	#include <devfs.h>
58	#include <mapper.h>
59
60	#define KERNEL_INIT_SYNCHRO 0xA5A5B5B5
61
62	///////////////////////////////////////////////////////////////////////////////////////////
63	// All the following global variables are replicated in all clusters.
64	// They are initialised by the kernel_init() function.
65	//
66	// WARNING : The section names have been defined to control the base addresses of the
67	// boot_info structure and the idle thread descriptors, through the kernel.ld script:
68	// - the boot_info structure is built by the bootloader, and used by kernel_init.
69	// it must be the first object in the kdata segment.
70	// - the array of idle threads descriptors must be placed on the first page boundary after
71	// the boot_info structure in the kdata segment.
72	///////////////////////////////////////////////////////////////////////////////////////////
73
74	// This variable defines the local boot_info structure
75	__attribute__((section(".kinfo")))
76	boot_info_t boot_info;
77
78	// This variable defines the "idle" threads descriptors array
79	__attribute__((section(".kidle")))
80	char idle_threads[CONFIG_THREAD_DESC_SIZE *
81	CONFIG_MAX_LOCAL_CORES] CONFIG_PPM_PAGE_ALIGNED;
82
83	// This variable defines the local cluster manager
84	__attribute__((section(".kdata")))
85	cluster_t cluster_manager CONFIG_CACHE_LINE_ALIGNED;
86
87	// This variable defines the TXT0 kernel terminal
88	__attribute__((section(".kdata")))
89	chdev_t txt0_chdev CONFIG_CACHE_LINE_ALIGNED;
90
91	// This variables define the kernel process0 descriptor
92	__attribute__((section(".kdata")))
93	process_t process_zero CONFIG_CACHE_LINE_ALIGNED;
94
95	// This variable defines extended pointers on the distributed chdevs
96	__attribute__((section(".kdata")))
97	chdev_directory_t chdev_dir CONFIG_CACHE_LINE_ALIGNED;
98
99	// This variable contains the input IRQ indexes for the IOPIC controller
100	__attribute__((section(".kdata")))
101	iopic_input_t iopic_input CONFIG_CACHE_LINE_ALIGNED;
102
103	// This variable contains the input IRQ indexes for the LAPIC controller
104	__attribute__((section(".kdata")))
105	lapic_input_t lapic_input CONFIG_CACHE_LINE_ALIGNED;
106
107	// This variable defines the local cluster identifier
108	__attribute__((section(".kdata")))
109	cxy_t local_cxy CONFIG_CACHE_LINE_ALIGNED;
110
111	// This variable is used for CP0 cores synchronisation in kernel_init()
112	__attribute__((section(".kdata")))
113	remote_barrier_t global_barrier CONFIG_CACHE_LINE_ALIGNED;
114
115	// This variable is used for local cores synchronisation in kernel_init()
116	__attribute__((section(".kdata")))
117	barrier_t local_barrier CONFIG_CACHE_LINE_ALIGNED;
118
119	// This variable defines the array of supported File System contexts
120	__attribute__((section(".kdata")))
121	vfs_ctx_t fs_context[FS_TYPES_NR] CONFIG_CACHE_LINE_ALIGNED;
122
123
124	///////////////////////////////////////////////////////////////////////////////////////////
125	// This function displays the ALMOS_MKH banner.
126	///////////////////////////////////////////////////////////////////////////////////////////
127	static void print_banner( uint32_t nclusters , uint32_t ncores )
128	{
129	printk("\n"
130	" _ __ __ _____ ______ __ __ _ __ _ _ \n"
131	" /\\ \| \| \| \\ / \| / ___ \\ / _____\| \| \\ / \| \| \| / / \| \| \| \| \n"
132	" / \\ \| \| \| \\/ \| \| / \\ \| \| / \| \\/ \| \| \|/ / \| \| \| \| \n"
133	" / /\\ \\ \| \| \| \|\\ /\| \| \| \| \| \| \| \|_____ ___ \| \|\\ /\| \| \| / \| \|___\| \| \n"
134	" / /__\\ \\ \| \| \| \| \\/ \| \| \| \| \| \| \\_____ \\ \|___\| \| \| \\/ \| \| \| \\ \| ___ \| \n"
135	" / ______ \\ \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|\\ \\ \| \| \| \| \n"
136	" / / \\ \\ \| \|____ \| \| \| \| \| \\___/ \| _____/ \| \| \| \| \| \| \| \\ \\ \| \| \| \| \n"
137	" /_/ \\_\\ \|______\| \|_\| \|_\| \\_____/ \|______/ \|_\| \|_\| \|_\| \\_\\ \|_\| \|_\| \n"
138	"\n\n\t\t Advanced Locality Management Operating System / Multi Kernel Hybrid\n"
139	"\n\n\t\t\t Version 0.0 / %d cluster(s) / %d core(s) per cluster\n\n", nclusters , ncores );
140	}
141
142
143	///////////////////////////////////////////////////////////////////////////////////////////
144	// This function initializes the TXT0 chdev descriptor, that is the "kernel terminal",
145	// shared by all kernel instances for debug messages.
146	// It is a global variable (replicated in all clusters), because this terminal is used
147	// before the kmem allocator initialisation, but only the instance in cluster containing
148	// the calling core is registered in the "chdev_dir" directory.
149	// As this TXT0 chdev supports only the TXT_SYNC_WRITE command, we don't create
150	// a server thread, we don't allocate a WTI, and we don't initialize the waiting queue.
151	///////////////////////////////////////////////////////////////////////////////////////////
152	// @ info : pointer on the local boot-info structure.
153	///////////////////////////////////////////////////////////////////////////////////////////
154	static void txt0_device_init( boot_info_t * info )
155	{
156	boot_device_t * dev_tbl; // pointer on array of devices in boot_info
157	uint32_t dev_nr; // actual number of devices in this cluster
158	xptr_t base; // remote pointer on segment base
159	uint32_t func; // device functional index
160	uint32_t impl; // device implementation index
161	uint32_t i; // device index in dev_tbl
162	uint32_t x; // X cluster coordinate
163	uint32_t y; // Y cluster coordinate
164	uint32_t channels; // number of channels
165
166	// get number of peripherals and base of devices array from boot_info
167	dev_nr = info->ext_dev_nr;
168	dev_tbl = info->ext_dev;
169
170	// loop on external peripherals to find TXT device
171	for( i = 0 ; i < dev_nr ; i++ )
172	{
173	base = dev_tbl[i].base;
174	func = FUNC_FROM_TYPE( dev_tbl[i].type );
175	impl = IMPL_FROM_TYPE( dev_tbl[i].type );
176	channels = dev_tbl[i].channels;
177
178	if (func == DEV_FUNC_TXT )
179	{
180	assert( (channels > 0) , __FUNCTION__ ,
181	"numner of TXT channels cannot be 0\n");
182
183	// initializes TXT0 basic fields
184	txt0_chdev.func = func;
185	txt0_chdev.impl = impl;
186	txt0_chdev.channel = 0;
187	txt0_chdev.base = base;
188	txt0_chdev.is_rx = false;
189
190	// initializes lock
191	remote_spinlock_init( XPTR( local_cxy , &txt0_chdev.wait_lock ) );
192
193	// TXT specific initialisation:
194	// no server thread & no IRQ routing for channel 0
195	dev_txt_init( &txt0_chdev );
196
197	// register the TXT0 in all chdev_dir[x][y] structures
198	for( x = 0 ; x < info->x_size ; x++ )
199	{
200	for( y = 0 ; y < info->y_size ; y++ )
201	{
202	cxy_t cxy = (x<<info->y_width) + y;
203	hal_remote_swd( XPTR( cxy , &chdev_dir.txt[0] ) ,
204	XPTR( local_cxy , &txt0_chdev ) );
205	}
206	}
207	}
208	} // end loop on devices
209	} // end txt0_device_init()
210
211	///////////////////////////////////////////////////////////////////////////////////////////
212	// This function allocates memory and initializes the chdev descriptors for the internal
213	// peripherals contained in the local cluster, other than the LAPIC, as specified by
214	// the boot_info, including the linking with the driver for the specified implementation.
215	// The relevant entries in all copies of the devices directory are initialised.
216	///////////////////////////////////////////////////////////////////////////////////////////
217	// @ info : pointer on the local boot-info structure.
218	///////////////////////////////////////////////////////////////////////////////////////////
219	static void internal_devices_init( boot_info_t * info )
220	{
221	boot_device_t * dev_tbl; // pointer on array of internaldevices in boot_info
222	uint32_t dev_nr; // actual number of devices in this cluster
223	xptr_t base; // remote pointer on segment base
224	uint32_t func; // device functionnal index
225	uint32_t impl; // device implementation index
226	uint32_t i; // device index in dev_tbl
227	uint32_t x; // X cluster coordinate
228	uint32_t y; // Y cluster coordinate
229	uint32_t channels; // number of channels
230	uint32_t channel; // channel index
231	chdev_t * chdev_ptr; // local pointer on created chdev
232
233	// get number of internal peripherals and base from boot_info
234	dev_nr = info->int_dev_nr;
235	dev_tbl = info->int_dev;
236
237	// loop on internal peripherals
238	for( i = 0 ; i < dev_nr ; i++ )
239	{
240	base = dev_tbl[i].base;
241	channels = dev_tbl[i].channels;
242	func = FUNC_FROM_TYPE( dev_tbl[i].type );
243	impl = IMPL_FROM_TYPE( dev_tbl[i].type );
244
245	//////////////////////////
246	if( func == DEV_FUNC_MMC )
247	{
248	assert( (channels == 1) , __FUNCTION__ ,
249	"MMC device must be single channel\n" );
250
251	// create chdev in local cluster
252	chdev_ptr = chdev_create( func,
253	impl,
254	0, // channel
255	false, // direction
256	base );
257
258	assert( (chdev_ptr != NULL) , __FUNCTION__ ,
259	"cannot allocate memory for MMC chdev\n" );
260
261	// make MMC specific initialisation
262	dev_mmc_init( chdev_ptr );
263
264	// set the MMC field in all chdev_dir[x][y] structures
265	for( x = 0 ; x < info->x_size ; x++ )
266	{
267	for( y = 0 ; y < info->y_size ; y++ )
268	{
269	cxy_t cxy = (x<<info->y_width) + y;
270	hal_remote_swd( XPTR( cxy , &chdev_dir.mmc[local_cxy] ),
271	XPTR( local_cxy , chdev_ptr ) );
272	}
273	}
274
275	#if( CONFIG_KINIT_DEBUG > 1 )
276	printk("\n[DMSG] %s : created MMC in cluster %x / chdev = %x\n",
277	__FUNCTION__ , channel , local_cxy , chdev_ptr );
278	#endif
279	}
280	///////////////////////////////
281	else if( func == DEV_FUNC_DMA )
282	{
283	// create one chdev per channel in local cluster
284	for( channel = 0 ; channel < channels ; channel++ )
285	{
286	// create chdev[channel] in local cluster
287	chdev_ptr = chdev_create( func,
288	impl,
289	channel,
290	false, // direction
291	base );
292
293	assert( (chdev_ptr != NULL) , __FUNCTION__ ,
294	"cannot allocate memory for DMA chdev" );
295
296	// make DMA specific initialisation
297	dev_dma_init( chdev_ptr );
298
299	// initialize only the DMA[channel] field in the local chdev_dir[x][y]
300	// structure because the DMA device is not remotely accessible.
301	chdev_dir.dma[channel] = XPTR( local_cxy , chdev_ptr );
302
303	#if( CONFIG_KINIT_DEBUG > 1 )
304	printk("\n[DMSG] %s : created DMA[%d] in cluster %x / chdev = %x\n",
305	__FUNCTION__ , channel , local_cxy , chdev_ptr );
306	#endif
307	}
308	}
309	}
310	} // end internal_devices_init()
311
312	///////////////////////////////////////////////////////////////////////////////////////////
313	// This function allocates memory and initializes the chdev descriptors for the
314	// external (shared) peripherals other than the IOPIC, as specified by the boot_info,
315	// including the dynamic linking with the driver for the specified implementation.
316	// These chdev descriptors are distributed on all clusters, using a modulo on a global
317	// index, identically computed in all clusters: In each cluster, the local CP0 core
318	// computes the global index for all external chdevs, and creates only the chdevs that
319	// must be placed in the local cluster.
320	// The relevant entries in all copies of the devices directory are initialised.
321	///////////////////////////////////////////////////////////////////////////////////////////
322	// @ info : pointer on the local boot-info structure.
323	///////////////////////////////////////////////////////////////////////////////////////////
324	static void external_devices_init( boot_info_t * info )
325	{
326	boot_device_t * dev_tbl; // pointer on array of external devices in boot_info
327	uint32_t dev_nr; // actual number of external devices
328	xptr_t base; // remote pointer on segment base
329	uint32_t func; // device functionnal index
330	uint32_t impl; // device implementation index
331	uint32_t i; // device index in dev_tbl
332	uint32_t x; // X cluster coordinate
333	uint32_t y; // Y cluster coordinate
334	uint32_t channels; // number of channels
335	uint32_t channel; // channel index
336	uint32_t directions; // number of directions (1 or 2)
337	uint32_t rx; // direction index (0 or 1)
338	uint32_t first_channel; // used in loop on channels for TXT
339	chdev_t * chdev; // local pointer on one channel_device descriptor
340	uint32_t ext_chdev_gid; // global index of external chdev
341
342	// get number of peripherals and base of devices array from boot_info
343	dev_nr = info->ext_dev_nr;
344	dev_tbl = info->ext_dev;
345
346	// initializes global index (PIC is already placed in cluster 0
347	ext_chdev_gid = 1;
348
349	// loop on external peripherals
350	for( i = 0 ; i < dev_nr ; i++ )
351	{
352	base = dev_tbl[i].base;
353	channels = dev_tbl[i].channels;
354	func = FUNC_FROM_TYPE( dev_tbl[i].type );
355	impl = IMPL_FROM_TYPE( dev_tbl[i].type );
356
357	// There is one chdev per direction for NIC
358	if (func == DEV_FUNC_NIC) directions = 2;
359	else directions = 1;
360
361	// The TXT0 chdev has already been created
362	if (func == DEV_FUNC_TXT) first_channel = 1;
363	else first_channel = 0;
364
365	// do nothing for RO, that does not require a device descriptor.
366	if( func == DEV_FUNC_ROM ) continue;
367
368	// do nothing for PIC, that is already initialized
369	if( func == DEV_FUNC_PIC ) continue;
370
371	// check PIC device initialized
372	assert( (chdev_dir.pic != XPTR_NULL ) , __FUNCTION__ ,
373	"PIC device must be initialized before other devices\n" );
374
375	// check external device functionnal type
376	assert( ( (func == DEV_FUNC_IOB) \|\|
377	(func == DEV_FUNC_IOC) \|\|
378	(func == DEV_FUNC_TXT) \|\|
379	(func == DEV_FUNC_NIC) \|\|
380	(func == DEV_FUNC_FBF) ) , __FUNCTION__ ,
381	"undefined external peripheral type\n" );
382
383	// loops on channels
384	for( channel = first_channel ; channel < channels ; channel++ )
385	{
386	// loop on directions
387	for( rx = 0 ; rx < directions ; rx++ )
388	{
389	// compute target cluster for chdev[func,channel,direction]
390	uint32_t offset = ext_chdev_gid % ( info->x_size * info->y_size );
391	uint32_t cx = offset / info->y_size;
392	uint32_t cy = offset % info->y_size;
393	uint32_t target_cxy = (cx<<info->y_width) + cy;
394
395	// allocate and initialize a local chdev
396	// if local cluster matches target cluster
397	if( target_cxy == local_cxy )
398	{
399	chdev = chdev_create( func,
400	impl,
401	channel,
402	rx, // direction
403	base );
404
405	assert( (chdev != NULL), __FUNCTION__ ,
406	"cannot allocate external device" );
407
408	// make device type specific initialisation
409	if ( func == DEV_FUNC_IOB ) dev_iob_init( chdev );
410	else if( func == DEV_FUNC_IOC ) dev_ioc_init( chdev );
411	else if( func == DEV_FUNC_TXT ) dev_txt_init( chdev );
412	else if( func == DEV_FUNC_NIC ) dev_nic_init( chdev );
413	else if( func == DEV_FUNC_FBF ) dev_fbf_init( chdev );
414
415	// all external (shared) devices are remotely accessible
416	// initialize the replicated chdev_dir[x][y] structures
417	// defining the extended pointers on chdev descriptors
418	xptr_t * entry;
419
420	if(func==DEV_FUNC_IOB ) entry = &chdev_dir.iob;
421	if(func==DEV_FUNC_IOC ) entry = &chdev_dir.ioc[channel];
422	if(func==DEV_FUNC_TXT ) entry = &chdev_dir.txt[channel];
423	if(func==DEV_FUNC_FBF ) entry = &chdev_dir.fbf[channel];
424	if((func==DEV_FUNC_NIC) && (rx==0)) entry = &chdev_dir.nic_tx[channel];
425	if((func==DEV_FUNC_NIC) && (rx==1)) entry = &chdev_dir.nic_rx[channel];
426
427	for( x = 0 ; x < info->x_size ; x++ )
428	{
429	for( y = 0 ; y < info->y_size ; y++ )
430	{
431	cxy_t cxy = (x<<info->y_width) + y;
432	hal_remote_swd( XPTR( cxy , entry ),
433	XPTR( local_cxy , chdev ) );
434	}
435	}
436
437	#if( CONFIG_KINIT_DEBUG > 1 )
438	printk("\n[DMSG] %s : create chdev %s[%d] in cluster %x / chdev = %x\n",
439	__FUNCTION__ , chdev_func_str( func ), channel , local_cxy , chdev );
440	#endif
441	} // end if match
442
443	// increment chdev global index (matching or not)
444	ext_chdev_gid++;
445
446	} // end loop on directions
447	} // end loop on channels
448	} // end loop on devices
449	} // end external_devices_init()
450
451	///////////////////////////////////////////////////////////////////////////////////////////
452	// This function is called by CP0 in cluster 0 to allocate memory and initialize the PIC
453	// device, namely the informations attached to the external IOPIC controller.
454	// This initialisation must be done before other devices initialisation because the IRQ
455	// routing infrastructure is required for internal and external devices initialisation.
456	///////////////////////////////////////////////////////////////////////////////////////////
457	// @ info : pointer on the local boot-info structure.
458	///////////////////////////////////////////////////////////////////////////////////////////
459	static void iopic_init( boot_info_t * info )
460	{
461	boot_device_t * dev_tbl; // pointer on boot_info external devices array
462	uint32_t dev_nr; // actual number of external devices
463	xptr_t base; // remote pointer on segment base
464	uint32_t func; // device functionnal index
465	uint32_t impl; // device implementation index
466	uint32_t i; // device index in dev_tbl
467	uint32_t x; // cluster X coordinate
468	uint32_t y; // cluster Y coordinate
469	bool_t found; // IOPIC found
470	chdev_t * chdev; // pointer on PIC chdev descriptor
471
472	// get number of external peripherals and base of array from boot_info
473	dev_nr = info->ext_dev_nr;
474	dev_tbl = info->ext_dev;
475
476	// loop on external peripherals to get the IOPIC
477	for( i = 0 , found = false ; i < dev_nr ; i++ )
478	{
479	func = FUNC_FROM_TYPE( dev_tbl[i].type );
480
481	if( func == DEV_FUNC_PIC )
482	{
483	base = dev_tbl[i].base;
484	impl = IMPL_FROM_TYPE( dev_tbl[i].type );
485	found = true;
486	break;
487	}
488	}
489
490	assert( found , __FUNCTION__ , "PIC device not found\n" );
491
492	// allocate and initialize the PIC chdev in local cluster
493	chdev = chdev_create( func,
494	impl,
495	0, // channel
496	0, // direction,
497	base );
498
499	assert( (chdev != NULL), __FUNCTION__ , "no memory for PIC chdev\n" );
500
501	// make PIC device type specific initialisation
502	dev_pic_init( chdev );
503
504	// register extended pointer on PIC chdev in "chdev_dir" array in all clusters
505	xptr_t * entry = &chdev_dir.pic;
506
507	for( x = 0 ; x < info->x_size ; x++ )
508	{
509	for( y = 0 ; y < info->y_size ; y++ )
510	{
511	cxy_t cxy = (x<<info->y_width) + y;
512	hal_remote_swd( XPTR( cxy , entry ) ,
513	XPTR( local_cxy , chdev ) );
514	}
515	}
516
517	// initialize the "iopic_input" structure
518	// defining how external IRQs are connected to IOPIC
519	uint32_t id;
520	uint8_t valid;
521	uint32_t type;
522	uint8_t channel;
523	uint8_t is_rx;
524
525	for( id = 0 ; id < CONFIG_MAX_EXTERNAL_IRQS ; id++ )
526	{
527	valid = dev_tbl[i].irq[id].valid;
528	type = dev_tbl[i].irq[id].dev_type;
529	channel = dev_tbl[i].irq[id].channel;
530	is_rx = dev_tbl[i].irq[id].is_rx;
531
532	if( valid ) // only valid inputs are registered
533	{
534	uint32_t * index; // local pointer on one entry
535	uint16_t func = FUNC_FROM_TYPE( type );
536
537	if ( func == DEV_FUNC_TXT )
538	index = &iopic_input.txt[channel];
539	else if( func == DEV_FUNC_IOC )
540	index = &iopic_input.ioc[channel];
541	else if( (func == DEV_FUNC_NIC) && (is_rx == 0) )
542	index = &iopic_input.nic_tx[channel];
543	else if( (func == DEV_FUNC_NIC) && (is_rx != 0) )
544	index = &iopic_input.nic_rx[channel];
545	else if( func == DEV_FUNC_IOB )
546	index = &iopic_input.iob;
547	else
548	assert( false , __FUNCTION__ , "illegal source device for IOPIC input" );
549
550	// set entry in local structure
551	*index = id;
552	}
553	}
554
555	#if( CONFIG_KINIT_DEBUG > 1 )
556	printk("\n[DMSG] %s created PIC chdev in cluster %x at cycle %d\n",
557	__FUNCTION__ , local_cxy , (uint32_t)hal_time_stamp() );
558	#endif
559
560	} // end iopic_init()
561
562	///////////////////////////////////////////////////////////////////////////////////////////
563	// This function is called by all CP0s in all cluster to complete the PIC device
564	// initialisation, namely the informations attached to the LAPIC controller.
565	// This initialisation must be done after the IOPIC initialisation, but before other
566	// devices initialisation because the IRQ routing infrastructure is required for both
567	// internal and external devices initialisation.
568	///////////////////////////////////////////////////////////////////////////////////////////
569	// @ info : pointer on the local boot-info structure.
570	///////////////////////////////////////////////////////////////////////////////////////////
571	static void lapic_init( boot_info_t * info )
572	{
573	boot_device_t * dev_tbl; // pointer on boot_info internal devices array
574	uint32_t dev_nr; // number of internal devices
575	uint32_t i; // device index in dev_tbl
576	xptr_t base; // remote pointer on segment base
577	uint32_t func; // device functionnal type in boot_info
578	bool_t found; // LAPIC found
579
580	// get number of internal peripherals and base
581	dev_nr = info->int_dev_nr;
582	dev_tbl = info->int_dev;
583
584	// loop on internal peripherals to get the lapic device
585	for( i = 0 , found = false ; i < dev_nr ; i++ )
586	{
587	func = FUNC_FROM_TYPE( dev_tbl[i].type );
588
589	if( func == DEV_FUNC_ICU )
590	{
591	base = dev_tbl[i].base;
592	found = true;
593	break;
594	}
595	}
596
597	// if the LAPIC controller is not defined in the boot_info,
598	// we simply don't initialize the PIC extensions in the kernel,
599	// making the assumption that the LAPIC related informations
600	// are hidden in the hardware specific PIC driver.
601	if( found )
602	{
603	// initialise the PIC extensions for
604	// the core descriptor and core manager extensions
605	dev_pic_extend_init( (uint32_t *)GET_PTR( base ) );
606
607	// initialize the "lapic_input" structure
608	// defining how internal IRQs are connected to LAPIC
609	uint32_t id;
610	uint8_t valid;
611	uint8_t channel;
612	uint32_t func;
613
614	for( id = 0 ; id < CONFIG_MAX_INTERNAL_IRQS ; id++ )
615	{
616	valid = dev_tbl[i].irq[id].valid;
617	func = FUNC_FROM_TYPE( dev_tbl[i].irq[id].dev_type );
618	channel = dev_tbl[i].irq[id].channel;
619
620	if( valid ) // only valid local IRQs are registered
621	{
622	if ( func == DEV_FUNC_MMC ) lapic_input.mmc = id;
623	else if( func == DEV_FUNC_DMA ) lapic_input.dma[channel] = id;
624	else assert( false , __FUNCTION__ , "illegal source device for LAPIC input" );
625	}
626	}
627	}
628	} // end lapic_init()
629
630	///////////////////////////////////////////////////////////////////////////////////////////
631	// This static function returns the identifiers of the calling core.
632	///////////////////////////////////////////////////////////////////////////////////////////
633	// @ info : pointer on boot_info structure.
634	// @ lid : [out] core local index in cluster.
635	// @ cxy : [out] cluster identifier.
636	// @ lid : [out] core global identifier (hardware).
637	// @ return 0 if success / return EINVAL if not found.
638	///////////////////////////////////////////////////////////////////////////////////////////
639	static error_t get_core_identifiers( boot_info_t * info,
640	lid_t * lid,
641	cxy_t * cxy,
642	gid_t * gid )
643	{
644	uint32_t i;
645	gid_t global_id;
646
647	// get global identifier from hardware register
648	global_id = hal_get_gid();
649
650	// makes an associative search in boot_info to get (cxy,lid) from global_id
651	for( i = 0 ; i < info->cores_nr ; i++ )
652	{
653	if( global_id == info->core[i].gid )
654	{
655	*lid = info->core[i].lid;
656	*cxy = info->core[i].cxy;
657	*gid = global_id;
658	return 0;
659	}
660	}
661	return EINVAL;
662	}
663
664	///////////////////////////////////////////////////////////////////////////////////////////
665	// This function is the entry point for the kernel initialisation.
666	// It is executed by all cores in all clusters, but only core[0], called CP0,
667	// initializes the shared resources such as the cluster manager, or the local peripherals.
668	// To comply with the multi-kernels paradigm, it accesses only local cluster memory, using
669	// only information contained in the local boot_info_t structure, set by the bootloader.
670	// Only CP0 in cluster 0 print the log messages.
671	///////////////////////////////////////////////////////////////////////////////////////////
672	// @ info : pointer on the local boot-info structure.
673	///////////////////////////////////////////////////////////////////////////////////////////
674	void kernel_init( boot_info_t * info )
675	{
676	lid_t core_lid = -1; // running core local index
677	cxy_t core_cxy = -1; // running core cluster identifier
678	gid_t core_gid; // running core hardware identifier
679	cluster_t * cluster; // pointer on local cluster manager
680	core_t * core; // pointer on running core descriptor
681	thread_t * thread; // pointer on idle thread descriptor
682
683	xptr_t vfs_root_inode_xp; // extended pointer on VFS root inode
684	xptr_t devfs_dev_inode_xp; // extended pointer on DEVFS dev inode
685	xptr_t devfs_external_inode_xp; // extended pointer on DEVFS external inode
686	xptr_t devfs_internal_inode_xp; // extended pointer on DEVFS internal inode
687
688	error_t error;
689	reg_t status; // running core status register
690
691	cxy_t io_cxy = info->io_cxy;
692
693	assert( (io_cxy == ((info->x_size - 1)<<(info->y_width)) + (info->y_size - 1)) ,
694	__FUNCTION__ , "illegal IO cluter identifier\n" );
695
696	/////////////////////////////////////////////////////////////////////////////////
697	// STEP 0 : Each core get its core identifier from boot_info, and makes
698	// a partial initialisation of its private idle thread descriptor.
699	// CP0 initializes the "local_cxy" global variable.
700	// CP0 in cluster IO initializes the TXT0 chdev to print log messages.
701	/////////////////////////////////////////////////////////////////////////////////
702
703	error = get_core_identifiers( info,
704	&core_lid,
705	&core_cxy,
706	&core_gid );
707
708	// CP0 initializes cluster identifier
709	if( core_lid == 0 ) local_cxy = info->cxy;
710
711	// each core gets a pointer on its private idle thread descriptor
712	thread = (thread_t )( idle_threads + (core_lid CONFIG_THREAD_DESC_SIZE) );
713
714	// each core registers this thread pointer in hardware register
715	hal_set_current_thread( thread );
716
717	// each core initializes the idle thread "locks_root" and "xlocks_root" fields
718	list_root_init( &thread->locks_root );
719	xlist_root_init( XPTR( local_cxy , &thread->xlocks_root ) );
720
721	// CP0 in I/O cluster initialises TXT0 chdev descriptor
722	if( (core_lid == 0) && (core_cxy == io_cxy) ) txt0_device_init( info );
723
724	/////////////////////////////////////////////////////////////////////////////////
725	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
726	(info->x_size * info->y_size) );
727	barrier_wait( &local_barrier , info->cores_nr );
728
729	if( (core_lid == 0) && (local_cxy == 0) )
730	printk("\n[KINIT] %s : exit barrier 0 : TXT0 initialized / cycle %d\n",
731	__FUNCTION__, hal_time_stamp() );
732
733	/////////////////////////////////////////////////////////////////////////////
734	// STEP 1 : all cores check its core identifier.
735	// CP0 initializes the local cluster manager.
736	// This includes the memory allocators.
737	/////////////////////////////////////////////////////////////////////////////
738
739	// all cores check identifiers
740	if( error )
741	{
742	panic("illegal core identifiers gid = %x / cxy = %x / lid = %d",
743	core_lid , core_cxy , core_lid );
744	}
745
746	// CP0 initializes cluster manager
747	if( core_lid == 0 )
748	{
749	error = cluster_init( info );
750
751	if( error )
752	{
753	panic("cannot initialise cluster %x", local_cxy );
754	}
755	}
756
757	/////////////////////////////////////////////////////////////////////////////////
758	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
759	(info->x_size * info->y_size) );
760	barrier_wait( &local_barrier , info->cores_nr );
761	/////////////////////////////////////////////////////////////////////////////////
762
763	if( (core_lid == 0) && (local_cxy == 0) )
764	printk("\n[KINIT] %s : exit barrier 1 : clusters initialised / cycle %d\n",
765	__FUNCTION__, hal_time_stamp() );
766
767	/////////////////////////////////////////////////////////////////////////////////
768	// STEP 2 : all CP0s initialize the process_zero descriptor.
769	// CP0 in cluster 0 initializes the IOPIC device.
770	/////////////////////////////////////////////////////////////////////////////////
771
772	// all cores get pointer on local cluster manager & core descriptor
773	cluster = &cluster_manager;
774	core = &cluster->core_tbl[core_lid];
775
776	// all CP0s initialize the process_zero descriptor
777	if( core_lid == 0 ) process_reference_init( &process_zero , 0 , XPTR_NULL );
778
779	// CP0 in cluster 0 initializes the PIC chdev,
780	if( (core_lid == 0) && (local_cxy == 0) ) iopic_init( info );
781
782	////////////////////////////////////////////////////////////////////////////////
783	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
784	(info->x_size * info->y_size) );
785	barrier_wait( &local_barrier , info->cores_nr );
786	////////////////////////////////////////////////////////////////////////////////
787
788	if( (core_lid == 0) && (local_cxy == 0) )
789	printk("\n[KINIT] %s : exit barrier 2 : PIC initialised / cycle %d\n",
790	__FUNCTION__, hal_time_stamp() );
791
792	////////////////////////////////////////////////////////////////////////////////
793	// STEP 3 : all CP0s initialize the distibuted LAPIC descriptor.
794	// all CP0s initialize the internal chdev descriptors
795	// all CP0s initialize the local external chdev descriptors
796	////////////////////////////////////////////////////////////////////////////////
797
798	// all CP0s initialize their local LAPIC extension,
799	if( core_lid == 0 ) lapic_init( info );
800
801	// CP0 scan the internal (private) peripherals,
802	// and allocates memory for the corresponding chdev descriptors.
803	if( core_lid == 0 ) internal_devices_init( info );
804
805
806	// All CP0s contribute to initialise external peripheral chdev descriptors.
807	// Each CP0[cxy] scan the set of external (shared) peripherals (but the TXT0),
808	// and allocates memory for the chdev descriptors that must be placed
809	// on the (cxy) cluster according to the global index value.
810
811	if( core_lid == 0 ) external_devices_init( info );
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	printk("\n[KINIT] %s : exit barrier 3 : all chdev initialised / cycle %d\n",
821	__FUNCTION__, hal_time_stamp());
822
823	/////////////////////////////////////////////////////////////////////////////////
824	// STEP 4 : All cores enable IPI (Inter Procesor Interrupt),
825	// All cores initialise specific core registers
826	// Alh cores initialize IDLE thread.
827	// Only CP0 in cluster 0 creates the VFS root inode.
828	// It access the boot device to initialize the file system context.
829	/////////////////////////////////////////////////////////////////////////////////
830
831	#if CONFIG_KINIT_DEBUG
832	chdev_dir_display();
833	#endif
834
835	// All cores enable the shared IPI channel
836	dev_pic_enable_ipi();
837	hal_enable_irq( &status );
838
839	// All cores initialize specific core registers
840	hal_core_init( info );
841
842	// all cores initialize the idle thread descriptor
843	error = thread_kernel_init( thread,
844	THREAD_IDLE,
845	&thread_idle_func,
846	NULL,
847	core_lid );
848	if( error )
849	{
850	panic("core[%x][%d] cannot initialize idle thread",
851	local_cxy , core_lid );
852	}
853
854	// all cores unblock idle thread, and register it in scheduler
855	thread_unblock( XPTR( local_cxy , thread ) , THREAD_BLOCKED_GLOBAL );
856	core->scheduler.idle = thread;
857
858	#if CONFIG_KINIT_DEBUG
859	sched_display();
860	#endif
861
862	// CPO in cluster 0 creates the VFS root
863	if( (core_lid == 0) && (local_cxy == 0 ) )
864	{
865	vfs_root_inode_xp = XPTR_NULL;
866
867	// File System must be FATFS in this implementation,
868	// but other File System can be introduced here
869	if( CONFIG_VFS_ROOT_IS_FATFS )
870	{
871	// 1. allocate memory for FATFS context in cluster 0
872	fatfs_ctx_t * fatfs_ctx = fatfs_ctx_alloc();
873
874	assert( (fatfs_ctx != NULL) , __FUNCTION__ ,
875	"cannot create FATFS context in cluster 0\n" );
876
877	// 2. access boot device to initialize FATFS context
878	fatfs_ctx_init( fatfs_ctx );
879
880	// 3. get various informations from FATFS context
881	uint32_t root_dir_cluster = fatfs_ctx->root_dir_cluster;
882	uint32_t cluster_size = fatfs_ctx->bytes_per_sector *
883	fatfs_ctx->sectors_per_cluster;
884	uint32_t total_clusters = fatfs_ctx->fat_sectors_count << 7;
885
886	// 4. create VFS root inode in cluster 0
887	error = vfs_inode_create( XPTR_NULL, // dentry_xp
888	FS_TYPE_FATFS, // fs_type
889	INODE_TYPE_DIR, // inode_type
890	(void *)(intptr_t)root_dir_cluster, // extend
891	0, // attr
892	0, // rights
893	0, // uid
894	0, // gid
895	&vfs_root_inode_xp ); // return
896
897	assert( (error == 0) , __FUNCTION__ ,
898	"cannot create VFS root inode\n" );
899
900	// 5. initialize VFS context for FAT in cluster 0
901	vfs_ctx_init( FS_TYPE_FATFS, // file system type
902	0, // attributes
903	total_clusters,
904	cluster_size,
905	vfs_root_inode_xp, // VFS root
906	fatfs_ctx ); // extend
907
908	// 6. check initialisation
909	vfs_ctx_t * vfs_ctx = &fs_context[FS_TYPE_FATFS];
910	assert( (((fatfs_ctx_t *)vfs_ctx->extend)->sectors_per_cluster == 8),
911	__FUNCTION__ , "illegal value for FATFS context in cluster %x\n", local_cxy );
912	}
913	else
914	{
915	panic("root FS must be FATFS");
916	}
917
918	// register VFS root inode in process_zero descriptor of cluster 0
919	process_zero.vfs_root_xp = vfs_root_inode_xp;
920	process_zero.vfs_cwd_xp = vfs_root_inode_xp;
921	}
922
923	/////////////////////////////////////////////////////////////////////////////////
924	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
925	(info->x_size * info->y_size) );
926	barrier_wait( &local_barrier , info->cores_nr );
927	/////////////////////////////////////////////////////////////////////////////////
928
929	if( (core_lid == 0) && (local_cxy == 0) )
930	printk("\n[KINIT] %s : exit barrier 4 : VFS_root = %l in cluster 0 / cycle %d\n",
931	__FUNCTION__, vfs_root_inode_xp , hal_time_stamp());
932
933	/////////////////////////////////////////////////////////////////////////////////
934	// STEP 5 : Other CP0s allocate memory for the selected FS context,
935	// and initialise both the local FS context and the local VFS context
936	// from values stored in cluster 0.
937	// They get the VFS root inode extended pointer from cluster 0.
938	/////////////////////////////////////////////////////////////////////////////////
939
940	if( (core_lid == 0) && (local_cxy != 0) )
941	{
942	// File System must be FATFS in this implementation,
943	// but other File System can be introduced here
944	if( CONFIG_VFS_ROOT_IS_FATFS )
945	{
946	// 1. allocate memory for local FATFS context
947	fatfs_ctx_t * local_fatfs_ctx = fatfs_ctx_alloc();
948
949	assert( (local_fatfs_ctx != NULL) , __FUNCTION__ ,
950	"cannot create FATFS context in cluster %x\n", local_cxy );
951
952	// 2. get local pointer on VFS context for FATFS
953	vfs_ctx_t * vfs_ctx = &fs_context[FS_TYPE_FATFS];
954
955	// 3. get local pointer on FATFS context in cluster 0
956	fatfs_ctx_t * remote_fatfs_ctx = hal_remote_lpt( XPTR( 0 , &vfs_ctx->extend ) );
957
958	// 4. copy FATFS context from cluster 0 to local cluster
959	hal_remote_memcpy( XPTR( local_cxy , local_fatfs_ctx ),
960	XPTR( 0 , remote_fatfs_ctx ), sizeof(fatfs_ctx_t) );
961
962	// 5. copy VFS context from cluster 0 to local cluster
963	hal_remote_memcpy( XPTR( local_cxy , vfs_ctx ),
964	XPTR( 0 , vfs_ctx ), sizeof(vfs_ctx_t) );
965
966	// 6. update extend field in local copy of VFS context
967	vfs_ctx->extend = local_fatfs_ctx;
968
969	// 7. check initialisation
970	assert( (((fatfs_ctx_t *)vfs_ctx->extend)->sectors_per_cluster == 8),
971	__FUNCTION__ , "illegal value for FATFS context in cluster %x\n", local_cxy );
972	}
973
974	// get extended pointer on VFS root inode from cluster 0
975	vfs_root_inode_xp = hal_remote_lwd( XPTR( 0 , &process_zero.vfs_root_xp ) );
976
977	// update local process_zero descriptor
978	process_zero.vfs_root_xp = vfs_root_inode_xp;
979	process_zero.vfs_cwd_xp = vfs_root_inode_xp;
980	}
981
982	/////////////////////////////////////////////////////////////////////////////////
983	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
984	(info->x_size * info->y_size) );
985	barrier_wait( &local_barrier , info->cores_nr );
986	/////////////////////////////////////////////////////////////////////////////////
987
988	if( (core_lid == 0) && (local_cxy == 0) )
989	printk("\n[KINIT] %s : exit barrier 5 : VFS_root = %l in cluster IO / cycle %d\n",
990	__FUNCTION__, vfs_root_inode_xp , hal_time_stamp() );
991
992	/////////////////////////////////////////////////////////////////////////////////
993	// STEP 6 : CP0 in cluster IO makes the global DEVFS tree initialisation:
994	// It creates the DEVFS directory "dev", and the DEVFS "external"
995	// directory in cluster IO and mount these inodes into VFS.
996	/////////////////////////////////////////////////////////////////////////////////
997
998	if( (core_lid == 0) && (local_cxy == io_cxy) )
999	{
1000	// create "dev" and "external" directories.
1001	devfs_global_init( process_zero.vfs_root_xp,
1002	&devfs_dev_inode_xp,
1003	&devfs_external_inode_xp );
1004
1005	// creates the DEVFS context in cluster IO
1006	devfs_ctx_t * devfs_ctx = devfs_ctx_alloc();
1007
1008	assert( (devfs_ctx != NULL) , __FUNCTION__ ,
1009	"cannot create DEVFS context in cluster IO\n");
1010
1011	// register DEVFS root and external directories
1012	devfs_ctx_init( devfs_ctx, devfs_dev_inode_xp, devfs_external_inode_xp );
1013	}
1014
1015	/////////////////////////////////////////////////////////////////////////////////
1016	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
1017	(info->x_size * info->y_size) );
1018	barrier_wait( &local_barrier , info->cores_nr );
1019	/////////////////////////////////////////////////////////////////////////////////
1020
1021	if( (core_lid == 0) && (local_cxy == 0) )
1022	printk("\n[KINIT] %s : exit barrier 6 : dev_root = %l in cluster IO / cycle %d\n",
1023	__FUNCTION__, devfs_dev_inode_xp , hal_time_stamp() );
1024
1025	/////////////////////////////////////////////////////////////////////////////////
1026	// STEP 7 : All CP0s complete in parallel the DEVFS tree initialization.
1027	// Each CP0 get the "dev" and "external" extended pointers from
1028	// values stored in cluster IO.
1029	// Then each CP0 in cluster(i) creates the DEVFS "internal directory,
1030	// and creates the pseudo-files for all chdevs in cluster (i).
1031	/////////////////////////////////////////////////////////////////////////////////
1032
1033	if( core_lid == 0 )
1034	{
1035	// get extended pointer on "extend" field of VFS context for DEVFS in cluster IO
1036	xptr_t extend_xp = XPTR( io_cxy , &fs_context[FS_TYPE_DEVFS].extend );
1037
1038	// get pointer on DEVFS context in cluster IO
1039	devfs_ctx_t * devfs_ctx = hal_remote_lpt( extend_xp );
1040
1041	devfs_dev_inode_xp = hal_remote_lwd( XPTR( io_cxy ,
1042	&devfs_ctx->dev_inode_xp ) );
1043	devfs_external_inode_xp = hal_remote_lwd( XPTR( io_cxy ,
1044	&devfs_ctx->external_inode_xp ) );
1045
1046	// populate DEVFS in all clusters
1047	devfs_local_init( devfs_dev_inode_xp,
1048	devfs_external_inode_xp,
1049	&devfs_internal_inode_xp );
1050	}
1051
1052	/////////////////////////////////////////////////////////////////////////////////
1053	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
1054	(info->x_size * info->y_size) );
1055	barrier_wait( &local_barrier , info->cores_nr );
1056	/////////////////////////////////////////////////////////////////////////////////
1057
1058	if( (core_lid == 0) && (local_cxy == 0) )
1059	printk("\n[KINIT] %s : exit barrier 7 : dev_root = %l in cluster 0 / cycle %d\n",
1060	__FUNCTION__, devfs_dev_inode_xp , hal_time_stamp() );
1061
1062	/////////////////////////////////////////////////////////////////////////////////
1063	// STEP 8 : CP0 in I/O cluster creates the first user process (process_init)
1064	/////////////////////////////////////////////////////////////////////////////////
1065
1066	if( (core_lid == 0) && (local_cxy == io_cxy) )
1067	{
1068	process_init_create();
1069	}
1070
1071	/////////////////////////////////////////////////////////////////////////////////
1072	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
1073	(info->x_size * info->y_size) );
1074	barrier_wait( &local_barrier , info->cores_nr );
1075	/////////////////////////////////////////////////////////////////////////////////
1076
1077	if( (core_lid == 0) && (local_cxy == 0) )
1078	printk("\n[KINIT] %s : exit barrier 8 : process init created / cycle %d\n",
1079	__FUNCTION__ , hal_time_stamp() );
1080
1081	/////////////////////////////////////////////////////////////////////////////////
1082	// STEP 9 : CP0 in cluster 0 print banner
1083	/////////////////////////////////////////////////////////////////////////////////
1084
1085	if( (core_lid == 0) && (local_cxy == io_cxy) )
1086	{
1087	print_banner( (info->x_size * info->y_size) , info->cores_nr );
1088
1089	#if CONFIG_KINIT_DEBUG
1090
1091	vfs_display( vfs_root_inode_xp );
1092
1093	printk("\n\n***** memory fooprint for main kernel objects\n\n"
1094	" - thread descriptor : %d bytes\n"
1095	" - process descriptor : %d bytes\n"
1096	" - cluster manager : %d bytes\n"
1097	" - chdev descriptor : %d bytes\n"
1098	" - core descriptor : %d bytes\n"
1099	" - scheduler : %d bytes\n"
1100	" - rpc fifo : %d bytes\n"
1101	" - page descriptor : %d bytes\n"
1102	" - mapper root : %d bytes\n"
1103	" - ppm manager : %d bytes\n"
1104	" - kcm manager : %d bytes\n"
1105	" - khm manager : %d bytes\n"
1106	" - vmm manager : %d bytes\n"
1107	" - gpt root : %d bytes\n"
1108	" - list item : %d bytes\n"
1109	" - xlist item : %d bytes\n"
1110	" - spinlock : %d bytes\n"
1111	" - remote spinlock : %d bytes\n"
1112	" - rwlock : %d bytes\n"
1113	" - remote rwlock : %d bytes\n",
1114	sizeof( thread_t ),
1115	sizeof( process_t ),
1116	sizeof( cluster_t ),
1117	sizeof( chdev_t ),
1118	sizeof( core_t ),
1119	sizeof( scheduler_t ),
1120	sizeof( rpc_fifo_t ),
1121	sizeof( page_t ),
1122	sizeof( mapper_t ),
1123	sizeof( ppm_t ),
1124	sizeof( kcm_t ),
1125	sizeof( khm_t ),
1126	sizeof( vmm_t ),
1127	sizeof( gpt_t ),
1128	sizeof( list_entry_t ),
1129	sizeof( xlist_entry_t ),
1130	sizeof( spinlock_t ),
1131	sizeof( remote_spinlock_t ),
1132	sizeof( rwlock_t ),
1133	sizeof( remote_rwlock_t ));
1134	#endif
1135
1136	}
1137
1138	// each core activates its private TICK IRQ
1139	dev_pic_enable_timer( CONFIG_SCHED_TICK_MS_PERIOD );
1140
1141	// each core jump to idle thread
1142	thread_idle_func();
1143	}
1144

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