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source: trunk/kernel/kern/kernel_init.c @ 396

Last change on this file since 396 was 393, checked in by max@…, 7 years ago
Use panic().
File size: 50.6 KB

Rev	Line
[1]	1	/*
	2	* kernel_init.c - kernel parallel initialization
[127]	3	*
[23]	4	* Authors : Mohamed Lamine Karaoui (2015)
	5	* Alain Greiner (2016,2017)
[1]	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
[14]	25	#include <kernel_config.h>
[1]	26	#include <errno.h>
	27	#include <hal_types.h>
	28	#include <hal_special.h>
	29	#include <hal_context.h>
[279]	30	#include <hal_irqmask.h>
[296]	31	#include <hal_ppm.h>
[14]	32	#include <barrier.h>
[1]	33	#include <remote_barrier.h>
	34	#include <core.h>
	35	#include <list.h>
[68]	36	#include <xlist.h>
[204]	37	#include <xhtab.h>
[1]	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>
[5]	46	#include <chdev.h>
[1]	47	#include <boot_info.h>
	48	#include <dqdt.h>
	49	#include <dev_mmc.h>
[5]	50	#include <dev_dma.h>
	51	#include <dev_iob.h>
[1]	52	#include <dev_ioc.h>
[5]	53	#include <dev_txt.h>
[1]	54	#include <dev_pic.h>
	55	#include <printk.h>
	56	#include <vfs.h>
[23]	57	#include <devfs.h>
[68]	58	#include <mapper.h>
[1]	59
[5]	60	#define KERNEL_INIT_SYNCHRO 0xA5A5B5B5
[1]	61
	62	///////////////////////////////////////////////////////////////////////////////////////////
[279]	63	// All the following global variables are replicated in all clusters.
[1]	64	// They are initialised by the kernel_init() function.
[14]	65	//
[127]	66	// WARNING : The section names have been defined to control the base addresses of the
[14]	67	// boot_info structure and the idle thread descriptors, through the kernel.ld script:
[127]	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.
[14]	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.
[1]	72	///////////////////////////////////////////////////////////////////////////////////////////
	73
[5]	74	// This variable defines the local boot_info structure
	75	__attribute__((section(".kinfo")))
[14]	76	boot_info_t boot_info;
[5]	77
[14]	78	// This variable defines the "idle" threads descriptors array
	79	__attribute__((section(".kidle")))
[381]	80	char idle_threads[CONFIG_THREAD_DESC_SIZE *
[14]	81	CONFIG_MAX_LOCAL_CORES] CONFIG_PPM_PAGE_ALIGNED;
	82
[127]	83	// This variable defines the local cluster manager
[5]	84	__attribute__((section(".kdata")))
[19]	85	cluster_t cluster_manager CONFIG_CACHE_LINE_ALIGNED;
[1]	86
[188]	87	// This variable defines the TXT0 kernel terminal
	88	__attribute__((section(".kdata")))
	89	chdev_t txt0_chdev CONFIG_CACHE_LINE_ALIGNED;
	90
[14]	91	// This variables define the kernel process0 descriptor
[5]	92	__attribute__((section(".kdata")))
[19]	93	process_t process_zero CONFIG_CACHE_LINE_ALIGNED;
[1]	94
[14]	95	// This variable defines extended pointers on the distributed chdevs
[5]	96	__attribute__((section(".kdata")))
[14]	97	chdev_directory_t chdev_dir CONFIG_CACHE_LINE_ALIGNED;
[1]	98
[188]	99	// This variable contains the input IRQ indexes for the IOPIC controller
[5]	100	__attribute__((section(".kdata")))
[246]	101	iopic_input_t iopic_input CONFIG_CACHE_LINE_ALIGNED;
[1]	102
[188]	103	// This variable contains the input IRQ indexes for the LAPIC controller
[5]	104	__attribute__((section(".kdata")))
[188]	105	lapic_input_t lapic_input CONFIG_CACHE_LINE_ALIGNED;
[1]	106
[14]	107	// This variable defines the local cluster identifier
[5]	108	__attribute__((section(".kdata")))
[14]	109	cxy_t local_cxy CONFIG_CACHE_LINE_ALIGNED;
[5]	110
[127]	111	// This variable is used for CP0 cores synchronisation in kernel_init()
[5]	112	__attribute__((section(".kdata")))
[14]	113	remote_barrier_t global_barrier CONFIG_CACHE_LINE_ALIGNED;
[1]	114
[127]	115	// This variable is used for local cores synchronisation in kernel_init()
[14]	116	__attribute__((section(".kdata")))
	117	barrier_t local_barrier CONFIG_CACHE_LINE_ALIGNED;
	118
[127]	119	// This variable defines the array of supported File System contexts
[50]	120	__attribute__((section(".kdata")))
	121	vfs_ctx_t fs_context[FS_TYPES_NR] CONFIG_CACHE_LINE_ALIGNED;
	122
	123
[1]	124	///////////////////////////////////////////////////////////////////////////////////////////
[5]	125	// This function displays the ALMOS_MKH banner.
[1]	126	///////////////////////////////////////////////////////////////////////////////////////////
[5]	127	static void print_banner( uint32_t nclusters , uint32_t ncores )
[127]	128	{
[5]	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"
[279]	139	"\n\n\t\t\t Version 0.0 : %d cluster(s) / %d core(s) per cluster\n\n", nclusters , ncores );
[5]	140	}
[1]	141
	142
[5]	143	///////////////////////////////////////////////////////////////////////////////////////////
[188]	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.
[127]	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.
[5]	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
[127]	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
[5]	160	uint32_t impl; // device implementation index
[127]	161	uint32_t i; // device index in dev_tbl
	162	uint32_t x; // X cluster coordinate
	163	uint32_t y; // Y cluster coordinate
[188]	164	uint32_t channels; // number of channels
[1]	165
[5]	166	// get number of peripherals and base of devices array from boot_info
[127]	167	dev_nr = info->ext_dev_nr;
[5]	168	dev_tbl = info->ext_dev;
[1]	169
[14]	170	// loop on external peripherals to find TXT device
[127]	171	for( i = 0 ; i < dev_nr ; i++ )
	172	{
[5]	173	base = dev_tbl[i].base;
[188]	174	func = FUNC_FROM_TYPE( dev_tbl[i].type );
	175	impl = IMPL_FROM_TYPE( dev_tbl[i].type );
	176	channels = dev_tbl[i].channels;
[5]	177
[127]	178	if (func == DEV_FUNC_TXT )
[5]	179	{
[188]	180	assert( (channels > 0) , __FUNCTION__ ,
	181	"numner of TXT channels cannot be 0\n");
[5]	182
[188]	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
[14]	191	remote_spinlock_init( XPTR( local_cxy , &txt0_chdev.wait_lock ) );
[188]	192
	193	// TXT specific initialisation:
	194	// no server thread & no IRQ routing for channel 0
	195	dev_txt_init( &txt0_chdev );
[14]	196
[188]	197	// register the TXT0 in all chdev_dir[x][y] structures
[5]	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;
[19]	203	hal_remote_swd( XPTR( cxy , &chdev_dir.txt[0] ) ,
[14]	204	XPTR( local_cxy , &txt0_chdev ) );
[5]	205	}
	206	}
	207	}
[188]	208	} // end loop on devices
	209	} // end txt0_device_init()
[5]	210
[1]	211	///////////////////////////////////////////////////////////////////////////////////////////
[188]	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.
[1]	216	///////////////////////////////////////////////////////////////////////////////////////////
	217	// @ info : pointer on the local boot-info structure.
	218	///////////////////////////////////////////////////////////////////////////////////////////
[5]	219	static void internal_devices_init( boot_info_t * info )
[1]	220	{
[188]	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
[1]	232
[188]	233	// get number of internal peripherals and base from boot_info
	234	dev_nr = info->int_dev_nr;
	235	dev_tbl = info->int_dev;
[1]	236
[188]	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 );
[204]	244
[188]	245	//////////////////////////
	246	if( func == DEV_FUNC_MMC )
[5]	247	{
[188]	248	assert( (channels == 1) , __FUNCTION__ ,
	249	"MMC device must be single channel\n" );
[1]	250
[188]	251	// create chdev in local cluster
	252	chdev_ptr = chdev_create( func,
	253	impl,
	254	0, // channel
	255	false, // direction
	256	base );
[14]	257
[188]	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 );
[1]	263
[188]	264	// set the MMC field in all chdev_dir[x][y] structures
	265	for( x = 0 ; x < info->x_size ; x++ )
[1]	266	{
[188]	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	}
[1]	273	}
[188]	274
[389]	275	#if( CONFIG_KINIT_DEBUG > 1 )
	276	printk("\n[INFO] %s : created MMC in cluster %x / chdev = %x\n",
	277	__FUNCTION__ , channel , local_cxy , chdev_ptr );
	278	#endif
[14]	279	}
[188]	280	///////////////////////////////
	281	else if( func == DEV_FUNC_DMA )
[127]	282	{
[188]	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 );
[5]	292
[188]	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 );
[127]	298
[188]	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 );
[5]	302
[389]	303	#if( CONFIG_KINIT_DEBUG > 1 )
	304	printk("\n[INFO] %s : created DMA[%d] in cluster %x / chdev = %x\n",
	305	__FUNCTION__ , channel , local_cxy , chdev_ptr );
	306	#endif
[188]	307	}
[14]	308	}
[127]	309	}
[5]	310	} // end internal_devices_init()
	311
	312	///////////////////////////////////////////////////////////////////////////////////////////
[188]	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,
[5]	315	// including the dynamic linking with the driver for the specified implementation.
[188]	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.
[5]	321	///////////////////////////////////////////////////////////////////////////////////////////
	322	// @ info : pointer on the local boot-info structure.
	323	///////////////////////////////////////////////////////////////////////////////////////////
	324	static void external_devices_init( boot_info_t * info )
	325	{
[188]	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
[5]	329	uint32_t func; // device functionnal index
	330	uint32_t impl; // device implementation index
[188]	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
[127]	339	chdev_t * chdev; // local pointer on one channel_device descriptor
[188]	340	uint32_t ext_chdev_gid; // global index of external chdev
[5]	341
	342	// get number of peripherals and base of devices array from boot_info
[127]	343	dev_nr = info->ext_dev_nr;
[5]	344	dev_tbl = info->ext_dev;
	345
[188]	346	// initializes global index (PIC is already placed in cluster 0
	347	ext_chdev_gid = 1;
	348
[5]	349	// loop on external peripherals
[127]	350	for( i = 0 ; i < dev_nr ; i++ )
	351	{
[188]	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 );
[5]	356
	357	// There is one chdev per direction for NIC
[188]	358	if (func == DEV_FUNC_NIC) directions = 2;
	359	else directions = 1;
[5]	360
	361	// The TXT0 chdev has already been created
	362	if (func == DEV_FUNC_TXT) first_channel = 1;
	363	else first_channel = 0;
	364
[188]	365	// do nothing for RO, that does not require a device descriptor.
[5]	366	if( func == DEV_FUNC_ROM ) continue;
	367
[188]	368	// do nothing for PIC, that is already initialized
	369	if( func == DEV_FUNC_PIC ) continue;
[5]	370
[188]	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
[127]	383	// loops on channels
[188]	384	for( channel = first_channel ; channel < channels ; channel++ )
[127]	385	{
[5]	386	// loop on directions
[188]	387	for( rx = 0 ; rx < directions ; rx++ )
[1]	388	{
[188]	389	// compute target cluster for chdev[func,channel,direction]
	390	uint32_t offset = ext_chdev_gid % ( info->x_size * info->y_size );
[5]	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;
[1]	394
[5]	395	// allocate and initialize a local chdev
	396	// if local cluster matches target cluster
	397	if( target_cxy == local_cxy )
[1]	398	{
[5]	399	chdev = chdev_create( func,
	400	impl,
	401	channel,
[188]	402	rx, // direction
[5]	403	base );
	404
[127]	405	assert( (chdev != NULL), __FUNCTION__ ,
[5]	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 );
[188]	413	else if( func == DEV_FUNC_FBF ) dev_fbf_init( chdev );
[5]	414
[127]	415	// all external (shared) devices are remotely accessible
[5]	416	// initialize the replicated chdev_dir[x][y] structures
[127]	417	// defining the extended pointers on chdev descriptors
	418	xptr_t * entry;
	419
[188]	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];
[127]	426
[1]	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;
[188]	432	hal_remote_swd( XPTR( cxy , entry ),
	433	XPTR( local_cxy , chdev ) );
[5]	434	}
[1]	435	}
	436
[389]	437	#if( CONFIG_KINIT_DEBUG > 1 )
	438	printk("\n[INFO] %s : create chdev %s[%d] in cluster %x / chdev = %x\n",
	439	__FUNCTION__ , chdev_func_str( func ), channel , local_cxy , chdev );
	440	#endif
[5]	441	} // end if match
	442
[19]	443	// increment chdev global index (matching or not)
[188]	444	ext_chdev_gid++;
[5]	445
	446	} // end loop on directions
	447	} // end loop on channels
[188]	448	} // end loop on devices
	449	} // end external_devices_init()
[5]	450
[188]	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
[127]	481	if( func == DEV_FUNC_PIC )
[1]	482	{
[188]	483	base = dev_tbl[i].base;
	484	impl = IMPL_FROM_TYPE( dev_tbl[i].type );
	485	found = true;
	486	break;
	487	}
	488	}
[5]	489
[188]	490	assert( found , __FUNCTION__ , "PIC device not found\n" );
[1]	491
[188]	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 );
[5]	498
[188]	499	assert( (chdev != NULL), __FUNCTION__ , "no memory for PIC chdev\n" );
[5]	500
[188]	501	// make PIC device type specific initialisation
	502	dev_pic_init( chdev );
[1]	503
[188]	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	}
[1]	516
[188]	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
[389]	555	#if( CONFIG_KINIT_DEBUG > 1 )
	556	printk("\n[INFO] %s created PIC chdev in cluster %x at cycle %d\n",
	557	__FUNCTION__ , local_cxy , (uint32_t)hal_time_stamp() );
	558	#endif
[188]	559
	560	} // end iopic_init()
	561
[1]	562	///////////////////////////////////////////////////////////////////////////////////////////
[188]	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	///////////////////////////////////////////////////////////////////////////////////////////
[14]	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	///////////////////////////////////////////////////////////////////////////////////////////
[23]	639	static error_t get_core_identifiers( boot_info_t * info,
	640	lid_t * lid,
[14]	641	cxy_t * cxy,
	642	gid_t * gid )
	643	{
[127]	644	uint32_t i;
[14]	645	gid_t global_id;
[19]	646
[14]	647	// get global identifier from hardware register
[127]	648	global_id = hal_get_gid();
[14]	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;
[19]	662	}
[14]	663
	664	///////////////////////////////////////////////////////////////////////////////////////////
[1]	665	// This function is the entry point for the kernel initialisation.
[19]	666	// It is executed by all cores in all clusters, but only core[0], called CP0,
[14]	667	// initializes the shared resources such as the cluster manager, or the local peripherals.
[19]	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.
[103]	670	// Only CP0 in cluster 0 print the log messages.
[1]	671	///////////////////////////////////////////////////////////////////////////////////////////
	672	// @ info : pointer on the local boot-info structure.
	673	///////////////////////////////////////////////////////////////////////////////////////////
	674	void kernel_init( boot_info_t * info )
	675	{
[204]	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
[1]	688	error_t error;
[285]	689	reg_t status; // running core status register
[1]	690
[188]	691	cxy_t io_cxy = info->io_cxy;
	692
[381]	693	assert( (io_cxy == ((info->x_size - 1)<<(info->y_width)) + (info->y_size - 1)) ,
	694	__FUNCTION__ , "illegal IO cluter identifier\n" );
	695
[188]	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
[23]	703	error = get_core_identifiers( info,
[14]	704	&core_lid,
	705	&core_cxy,
	706	&core_gid );
[1]	707
[127]	708	// CP0 initializes cluster identifier
[14]	709	if( core_lid == 0 ) local_cxy = info->cxy;
[1]	710
[127]	711	// each core gets a pointer on its private idle thread descriptor
	712	thread = (thread_t )( idle_threads + (core_lid CONFIG_THREAD_DESC_SIZE) );
[68]	713
[127]	714	// each core registers this thread pointer in hardware register
[68]	715	hal_set_current_thread( thread );
[71]	716
[188]	717	// each core initializes the idle thread "locks_root" and "xlocks_root" fields
[124]	718	list_root_init( &thread->locks_root );
[188]	719	xlist_root_init( XPTR( local_cxy , &thread->xlocks_root ) );
[124]	720
[188]	721	// CP0 in I/O cluster initialises TXT0 chdev descriptor
	722	if( (core_lid == 0) && (core_cxy == io_cxy) ) txt0_device_init( info );
[14]	723
	724	/////////////////////////////////////////////////////////////////////////////////
[188]	725	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
[14]	726	(info->x_size * info->y_size) );
	727	barrier_wait( &local_barrier , info->cores_nr );
	728
[188]	729	if( (core_lid == 0) && (local_cxy == 0) )
[296]	730	kinit_dmsg("\n[INFO] %s : exit barrier 0 : TXT0 initialized / cycle %d\n",
	731	__FUNCTION__, hal_time_stamp() );
[14]	732
[188]	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
[14]	740	if( error )
[1]	741	{
[393]	742	panic("illegal core identifiers gid = %x / cxy = %x / lid = %d",
	743	core_lid , core_cxy , core_lid );
[1]	744	}
	745
[188]	746	// CP0 initializes cluster manager
[14]	747	if( core_lid == 0 )
[1]	748	{
	749	error = cluster_init( info );
	750
[14]	751	if( error )
	752	{
[393]	753	panic("cannot initialise cluster %x", local_cxy );
[14]	754	}
	755	}
[5]	756
[14]	757	/////////////////////////////////////////////////////////////////////////////////
[188]	758	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
[14]	759	(info->x_size * info->y_size) );
	760	barrier_wait( &local_barrier , info->cores_nr );
	761	/////////////////////////////////////////////////////////////////////////////////
[1]	762
[188]	763	if( (core_lid == 0) && (local_cxy == 0) )
[296]	764	kinit_dmsg("\n[INFO] %s : exit barrier 1 : clusters initialised / cycle %d\n",
	765	__FUNCTION__, hal_time_stamp() );
[1]	766
[188]	767	/////////////////////////////////////////////////////////////////////////////////
	768	// STEP 2 : all CP0s initialize the process_zero descriptor.
[296]	769	// CP0 in cluster 0 initializes the IOPIC device.
[188]	770	/////////////////////////////////////////////////////////////////////////////////
	771
	772	// all cores get pointer on local cluster manager & core descriptor
[14]	773	cluster = &cluster_manager;
[127]	774	core = &cluster->core_tbl[core_lid];
[1]	775
[188]	776	// all CP0s initialize the process_zero descriptor
[101]	777	if( core_lid == 0 ) process_reference_init( &process_zero , 0 , XPTR_NULL );
[5]	778
[188]	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	////////////////////////////////////////////////////////////////////////////////
[127]	787
[188]	788	if( (core_lid == 0) && (local_cxy == 0) )
[296]	789	kinit_dmsg("\n[INFO] %s : exit barrier 2 : PIC initialised / cycle %d\n",
	790	__FUNCTION__, hal_time_stamp() );
[1]	791
[188]	792	////////////////////////////////////////////////////////////////////////////////
[296]	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
[188]	796	////////////////////////////////////////////////////////////////////////////////
[5]	797
[279]	798	// all CP0s initialize their local LAPIC extension,
	799	if( core_lid == 0 ) lapic_init( info );
	800
[188]	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
[1]	805
[50]	806	// All CP0s contribute to initialise external peripheral chdev descriptors.
[14]	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
[127]	809	// on the (cxy) cluster according to the global index value.
[188]	810
[14]	811	if( core_lid == 0 ) external_devices_init( info );
[1]	812
[14]	813	/////////////////////////////////////////////////////////////////////////////////
[188]	814	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
[14]	815	(info->x_size * info->y_size) );
	816	barrier_wait( &local_barrier , info->cores_nr );
	817	/////////////////////////////////////////////////////////////////////////////////
[5]	818
[188]	819	if( (core_lid == 0) && (local_cxy == 0) )
[296]	820	kinit_dmsg("\n[INFO] %s : exit barrier 3 : all chdev initialised / cycle %d\n",
	821	__FUNCTION__, hal_time_stamp());
[1]	822
[188]	823	/////////////////////////////////////////////////////////////////////////////////
[279]	824	// STEP 4 : All cores enable IPI (Inter Procesor Interrupt),
[296]	825	// All cores initialise specific core registers
[279]	826	// Alh cores initialize IDLE thread.
[188]	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
[389]	831	#if( CONFIG_KINIT_DEBUG > 1 )
	832	chdev_dir_display();
	833	#endif
[279]	834
	835	// All cores enable the shared IPI channel
	836	dev_pic_enable_ipi();
	837	hal_enable_irq( &status );
	838
[296]	839	// All cores initialize specific core registers
	840	hal_core_init( info );
	841
	842	// all cores initialize the idle thread descriptor
[14]	843	error = thread_kernel_init( thread,
[127]	844	THREAD_IDLE,
	845	&thread_idle_func,
[14]	846	NULL,
	847	core_lid );
	848	if( error )
[1]	849	{
[393]	850	panic("core[%x][%d] cannot initialize idle thread",
	851	local_cxy , core_lid );
[1]	852	}
	853
[296]	854	// all cores unblock idle thread, and register it in scheduler
	855	thread_unblock( XPTR( local_cxy , thread ) , THREAD_BLOCKED_GLOBAL );
[103]	856	core->scheduler.idle = thread;
[1]	857
[389]	858	#if( CONFIG_KINIT_DEBUG > 1 )
	859	sched_display();
	860	#endif
[14]	861
[188]	862	// CPO in cluster 0 creates the VFS root
	863	if( (core_lid == 0) && (local_cxy == 0 ) )
[14]	864	{
[188]	865	vfs_root_inode_xp = XPTR_NULL;
[23]	866
[188]	867	// File System must be FATFS in this implementation,
	868	// but other File System can be introduced here
[23]	869	if( CONFIG_VFS_ROOT_IS_FATFS )
	870	{
[389]	871	// 1. allocate memory for FATFS context in cluster 0
[188]	872	fatfs_ctx_t * fatfs_ctx = fatfs_ctx_alloc();
	873
[279]	874	assert( (fatfs_ctx != NULL) , __FUNCTION__ ,
	875	"cannot create FATFS context in cluster 0\n" );
[188]	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
[279]	897	assert( (error == 0) , __FUNCTION__ ,
	898	"cannot create VFS root inode\n" );
[188]	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
[389]	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 );
[23]	912	}
	913	else
	914	{
[393]	915	panic("root FS must be FATFS");
[23]	916	}
	917
[389]	918	// register VFS root inode in process_zero descriptor of cluster 0
[188]	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) )
[296]	930	kinit_dmsg("\n[INFO] %s : exit barrier 4 : VFS_root = %l in cluster 0 / cycle %d\n",
	931	__FUNCTION__, vfs_root_inode_xp , hal_time_stamp());
[188]	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 )
[23]	945	{
[389]	946	// 1. allocate memory for local FATFS context
	947	fatfs_ctx_t * local_fatfs_ctx = fatfs_ctx_alloc();
[188]	948
[389]	949	assert( (local_fatfs_ctx != NULL) , __FUNCTION__ ,
	950	"cannot create FATFS context in cluster %x\n", local_cxy );
[188]	951
[389]	952	// 2. get local pointer on VFS context for FATFS
[188]	953	vfs_ctx_t * vfs_ctx = &fs_context[FS_TYPE_FATFS];
	954
[389]	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
[188]	963	hal_remote_memcpy( XPTR( local_cxy , vfs_ctx ),
[389]	964	XPTR( 0 , vfs_ctx ), sizeof(vfs_ctx_t) );
[188]	965
[389]	966	// 6. update extend field in local copy of VFS context
	967	vfs_ctx->extend = local_fatfs_ctx;
[188]	968
[389]	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 );
[23]	972	}
	973
[188]	974	// get extended pointer on VFS root inode from cluster 0
[296]	975	vfs_root_inode_xp = hal_remote_lwd( XPTR( 0 , &process_zero.vfs_root_xp ) );
[101]	976
[188]	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;
[14]	980	}
	981
[188]	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 );
[204]	986	/////////////////////////////////////////////////////////////////////////////////
[101]	987
[381]	988	if( (core_lid == 0) && (local_cxy == 0) )
[296]	989	kinit_dmsg("\n[INFO] %s : exit barrier 5 : VFS_root = %l in cluster IO / cycle %d\n",
	990	__FUNCTION__, vfs_root_inode_xp , hal_time_stamp() );
[188]	991
	992	/////////////////////////////////////////////////////////////////////////////////
	993	// STEP 6 : CP0 in cluster IO makes the global DEVFS tree initialisation:
[204]	994	// It creates the DEVFS directory "dev", and the DEVFS "external"
	995	// directory in cluster IO and mount these inodes into VFS.
[188]	996	/////////////////////////////////////////////////////////////////////////////////
	997
	998	if( (core_lid == 0) && (local_cxy == io_cxy) )
[1]	999	{
[188]	1000	// create "dev" and "external" directories.
	1001	devfs_global_init( process_zero.vfs_root_xp,
[204]	1002	&devfs_dev_inode_xp,
[188]	1003	&devfs_external_inode_xp );
	1004
	1005	// creates the DEVFS context in cluster IO
	1006	devfs_ctx_t * devfs_ctx = devfs_ctx_alloc();
	1007
[279]	1008	assert( (devfs_ctx != NULL) , __FUNCTION__ ,
	1009	"cannot create DEVFS context in cluster IO\n");
[188]	1010
	1011	// register DEVFS root and external directories
[204]	1012	devfs_ctx_init( devfs_ctx, devfs_dev_inode_xp, devfs_external_inode_xp );
[188]	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 );
[204]	1019	/////////////////////////////////////////////////////////////////////////////////
[188]	1020
[381]	1021	if( (core_lid == 0) && (local_cxy == 0) )
[296]	1022	kinit_dmsg("\n[INFO] %s : exit barrier 6 : dev_root = %l in cluster IO / cycle %d\n",
	1023	__FUNCTION__, devfs_dev_inode_xp , hal_time_stamp() );
[188]	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
[204]	1028	// values stored in cluster IO.
[337]	1029	// Then each CP0 in cluster(i) creates the DEVFS "internal directory,
[204]	1030	// and creates the pseudo-files for all chdevs in cluster (i).
[188]	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
[204]	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 ) );
[188]	1045
[204]	1046	// populate DEVFS in all clusters
	1047	devfs_local_init( devfs_dev_inode_xp,
	1048	devfs_external_inode_xp,
	1049	&devfs_internal_inode_xp );
[188]	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 );
[204]	1056	/////////////////////////////////////////////////////////////////////////////////
[188]	1057
	1058	if( (core_lid == 0) && (local_cxy == 0) )
[296]	1059	kinit_dmsg("\n[INFO] %s : exit barrier 7 : dev_root = %l in cluster 0 / cycle %d\n",
	1060	__FUNCTION__, devfs_dev_inode_xp , hal_time_stamp() );
[188]	1061
	1062	/////////////////////////////////////////////////////////////////////////////////
[204]	1063	// STEP 8 : CP0 in I/O cluster creates the first user process (process_init)
[188]	1064	/////////////////////////////////////////////////////////////////////////////////
	1065
	1066	if( (core_lid == 0) && (local_cxy == io_cxy) )
	1067	{
[101]	1068	process_init_create();
[389]	1069	vfs_display( vfs_root_inode_xp );
[188]	1070	}
[101]	1071
[188]	1072	/////////////////////////////////////////////////////////////////////////////////
[381]	1073	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
[188]	1074	(info->x_size * info->y_size) );
	1075	barrier_wait( &local_barrier , info->cores_nr );
[204]	1076	/////////////////////////////////////////////////////////////////////////////////
[188]	1077
	1078	if( (core_lid == 0) && (local_cxy == 0) )
[296]	1079	kinit_dmsg("\n[INFO] %s : exit barrier 8 : process init created / cycle %d\n",
	1080	__FUNCTION__ , hal_time_stamp() );
[188]	1081
	1082	/////////////////////////////////////////////////////////////////////////////////
	1083	// STEP 9 : CP0 in cluster 0 print banner
	1084	/////////////////////////////////////////////////////////////////////////////////
	1085
	1086	if( (core_lid == 0) && (local_cxy == io_cxy) )
	1087	{
[5]	1088	print_banner( (info->x_size * info->y_size) , info->cores_nr );
[68]	1089
[389]	1090	kinit_dmsg("\n\n***** memory fooprint for main kernet objects\n\n"
[68]	1091	" - thread descriptor : %d bytes\n"
	1092	" - process descriptor : %d bytes\n"
	1093	" - cluster manager : %d bytes\n"
	1094	" - chdev descriptor : %d bytes\n"
	1095	" - core descriptor : %d bytes\n"
	1096	" - scheduler : %d bytes\n"
	1097	" - rpc fifo : %d bytes\n"
	1098	" - page descriptor : %d bytes\n"
	1099	" - mapper root : %d bytes\n"
	1100	" - ppm manager : %d bytes\n"
	1101	" - kcm manager : %d bytes\n"
	1102	" - khm manager : %d bytes\n"
	1103	" - vmm manager : %d bytes\n"
	1104	" - gpt root : %d bytes\n"
	1105	" - list item : %d bytes\n"
	1106	" - xlist item : %d bytes\n"
	1107	" - spinlock : %d bytes\n"
	1108	" - remote spinlock : %d bytes\n"
	1109	" - rwlock : %d bytes\n"
	1110	" - remote rwlock : %d bytes\n",
[127]	1111	sizeof( thread_t ),
[68]	1112	sizeof( process_t ),
	1113	sizeof( cluster_t ),
	1114	sizeof( chdev_t ),
	1115	sizeof( core_t ),
	1116	sizeof( scheduler_t ),
	1117	sizeof( rpc_fifo_t ),
	1118	sizeof( page_t ),
	1119	sizeof( mapper_t ),
	1120	sizeof( ppm_t ),
	1121	sizeof( kcm_t ),
	1122	sizeof( khm_t ),
	1123	sizeof( vmm_t ),
	1124	sizeof( gpt_t ),
	1125	sizeof( list_entry_t ),
	1126	sizeof( xlist_entry_t ),
	1127	sizeof( spinlock_t ),
	1128	sizeof( remote_spinlock_t ),
	1129	sizeof( rwlock_t ),
	1130	sizeof( remote_rwlock_t ));
[1]	1131	}
	1132
[380]	1133	// each core activates its private TICK IRQ (number of ticks)
	1134	dev_pic_enable_timer( CONFIG_SCHED_TICKS_PER_QUANTUM );
[14]	1135
	1136	// each core jump to idle thread
[50]	1137	thread_idle_func();
[127]	1138	}
[14]	1139

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