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source: trunk/kernel/kern/kernel_init.c @ 267

Last change on this file since 267 was 265, checked in by alain, 7 years ago
Fix several bugs in VFS.
File size: 50.4 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>
[14]	30	#include <barrier.h>
[1]	31	#include <remote_barrier.h>
	32	#include <core.h>
	33	#include <list.h>
[68]	34	#include <xlist.h>
[204]	35	#include <xhtab.h>
[1]	36	#include <thread.h>
	37	#include <scheduler.h>
	38	#include <kmem.h>
	39	#include <cluster.h>
	40	#include <string.h>
	41	#include <memcpy.h>
	42	#include <ppm.h>
	43	#include <page.h>
[5]	44	#include <chdev.h>
[1]	45	#include <boot_info.h>
	46	#include <dqdt.h>
	47	#include <dev_mmc.h>
[5]	48	#include <dev_dma.h>
	49	#include <dev_iob.h>
[1]	50	#include <dev_ioc.h>
[5]	51	#include <dev_txt.h>
[1]	52	#include <dev_pic.h>
	53	#include <printk.h>
	54	#include <vfs.h>
[23]	55	#include <devfs.h>
[68]	56	#include <mapper.h>
[1]	57
[5]	58	#define KERNEL_INIT_SYNCHRO 0xA5A5B5B5
[1]	59
	60	///////////////////////////////////////////////////////////////////////////////////////////
	61	// All these global variables are replicated in all clusters.
	62	// They are initialised by the kernel_init() function.
[14]	63	//
[127]	64	// WARNING : The section names have been defined to control the base addresses of the
[14]	65	// boot_info structure and the idle thread descriptors, through the kernel.ld script:
[127]	66	// - the boot_info structure is built by the bootloader, and used by kernel_init.
	67	// it must be the first object in the kdata segment.
[14]	68	// - the array of idle threads descriptors must be placed on the first page boundary after
	69	// the boot_info structure in the kdata segment.
[1]	70	///////////////////////////////////////////////////////////////////////////////////////////
	71
[5]	72	// This variable defines the local boot_info structure
	73	__attribute__((section(".kinfo")))
[14]	74	boot_info_t boot_info;
[5]	75
[14]	76	// This variable defines the "idle" threads descriptors array
	77	__attribute__((section(".kidle")))
	78	char idle_threads[CONFIG_THREAD_DESC_SIZE *
	79	CONFIG_MAX_LOCAL_CORES] CONFIG_PPM_PAGE_ALIGNED;
	80
[127]	81	// This variable defines the local cluster manager
[5]	82	__attribute__((section(".kdata")))
[19]	83	cluster_t cluster_manager CONFIG_CACHE_LINE_ALIGNED;
[1]	84
[188]	85	// This variable defines the TXT0 kernel terminal
	86	__attribute__((section(".kdata")))
	87	chdev_t txt0_chdev CONFIG_CACHE_LINE_ALIGNED;
	88
[14]	89	// This variables define the kernel process0 descriptor
[5]	90	__attribute__((section(".kdata")))
[19]	91	process_t process_zero CONFIG_CACHE_LINE_ALIGNED;
[1]	92
[14]	93	// This variable defines extended pointers on the distributed chdevs
[5]	94	__attribute__((section(".kdata")))
[14]	95	chdev_directory_t chdev_dir CONFIG_CACHE_LINE_ALIGNED;
[1]	96
[188]	97	// This variable contains the input IRQ indexes for the IOPIC controller
[5]	98	__attribute__((section(".kdata")))
[246]	99	iopic_input_t iopic_input CONFIG_CACHE_LINE_ALIGNED;
[1]	100
[188]	101	// This variable contains the input IRQ indexes for the LAPIC controller
[5]	102	__attribute__((section(".kdata")))
[188]	103	lapic_input_t lapic_input CONFIG_CACHE_LINE_ALIGNED;
[1]	104
[14]	105	// This variable defines the local cluster identifier
[5]	106	__attribute__((section(".kdata")))
[14]	107	cxy_t local_cxy CONFIG_CACHE_LINE_ALIGNED;
[5]	108
[127]	109	// This variable is used for CP0 cores synchronisation in kernel_init()
[5]	110	__attribute__((section(".kdata")))
[14]	111	remote_barrier_t global_barrier CONFIG_CACHE_LINE_ALIGNED;
[1]	112
[127]	113	// This variable is used for local cores synchronisation in kernel_init()
[14]	114	__attribute__((section(".kdata")))
	115	barrier_t local_barrier CONFIG_CACHE_LINE_ALIGNED;
	116
[127]	117	// This variable defines the array of supported File System contexts
[50]	118	__attribute__((section(".kdata")))
	119	vfs_ctx_t fs_context[FS_TYPES_NR] CONFIG_CACHE_LINE_ALIGNED;
	120
	121
[1]	122	///////////////////////////////////////////////////////////////////////////////////////////
[5]	123	// This function displays the ALMOS_MKH banner.
[1]	124	///////////////////////////////////////////////////////////////////////////////////////////
[5]	125	static void print_banner( uint32_t nclusters , uint32_t ncores )
[127]	126	{
[5]	127	printk("\n"
	128	" _ __ __ _____ ______ __ __ _ __ _ _ \n"
	129	" /\\ \| \| \| \\ / \| / ___ \\ / _____\| \| \\ / \| \| \| / / \| \| \| \| \n"
	130	" / \\ \| \| \| \\/ \| \| / \\ \| \| / \| \\/ \| \| \|/ / \| \| \| \| \n"
	131	" / /\\ \\ \| \| \| \|\\ /\| \| \| \| \| \| \| \|_____ ___ \| \|\\ /\| \| \| / \| \|___\| \| \n"
	132	" / /__\\ \\ \| \| \| \| \\/ \| \| \| \| \| \| \\_____ \\ \|___\| \| \| \\/ \| \| \| \\ \| ___ \| \n"
	133	" / ______ \\ \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|\\ \\ \| \| \| \| \n"
	134	" / / \\ \\ \| \|____ \| \| \| \| \| \\___/ \| _____/ \| \| \| \| \| \| \| \\ \\ \| \| \| \| \n"
	135	" /_/ \\_\\ \|______\| \|_\| \|_\| \\_____/ \|______/ \|_\| \|_\| \|_\| \\_\\ \|_\| \|_\| \n"
	136	"\n\n\t\t Advanced Locality Management Operating System / Multi Kernel Hybrid\n"
[127]	137	"\n\n\t\t\t Version 0.0 : %d clusters / %d cores per cluster\n\n", nclusters , ncores );
[5]	138	}
[1]	139
	140
[5]	141	///////////////////////////////////////////////////////////////////////////////////////////
[188]	142	// This function initializes the TXT0 chdev descriptor, that is the "kernel terminal",
	143	// shared by all kernel instances for debug messages.
	144	// It is a global variable (replicated in all clusters), because this terminal is used
	145	// before the kmem allocator initialisation, but only the instance in cluster containing
	146	// the calling core is registered in the "chdev_dir" directory.
[127]	147	// As this TXT0 chdev supports only the TXT_SYNC_WRITE command, we don't create
	148	// a server thread, we don't allocate a WTI, and we don't initialize the waiting queue.
[5]	149	///////////////////////////////////////////////////////////////////////////////////////////
	150	// @ info : pointer on the local boot-info structure.
	151	///////////////////////////////////////////////////////////////////////////////////////////
	152	static void txt0_device_init( boot_info_t * info )
	153	{
	154	boot_device_t * dev_tbl; // pointer on array of devices in boot_info
[127]	155	uint32_t dev_nr; // actual number of devices in this cluster
	156	xptr_t base; // remote pointer on segment base
	157	uint32_t func; // device functional index
[5]	158	uint32_t impl; // device implementation index
[127]	159	uint32_t i; // device index in dev_tbl
	160	uint32_t x; // X cluster coordinate
	161	uint32_t y; // Y cluster coordinate
[188]	162	uint32_t channels; // number of channels
[1]	163
[5]	164	// get number of peripherals and base of devices array from boot_info
[127]	165	dev_nr = info->ext_dev_nr;
[5]	166	dev_tbl = info->ext_dev;
[1]	167
[14]	168	// loop on external peripherals to find TXT device
[127]	169	for( i = 0 ; i < dev_nr ; i++ )
	170	{
[5]	171	base = dev_tbl[i].base;
[188]	172	func = FUNC_FROM_TYPE( dev_tbl[i].type );
	173	impl = IMPL_FROM_TYPE( dev_tbl[i].type );
	174	channels = dev_tbl[i].channels;
[5]	175
[127]	176	if (func == DEV_FUNC_TXT )
[5]	177	{
[188]	178	assert( (channels > 0) , __FUNCTION__ ,
	179	"numner of TXT channels cannot be 0\n");
[5]	180
[188]	181	// initializes TXT0 basic fields
	182	txt0_chdev.func = func;
	183	txt0_chdev.impl = impl;
	184	txt0_chdev.channel = 0;
	185	txt0_chdev.base = base;
	186	txt0_chdev.is_rx = false;
	187
	188	// initializes lock
[14]	189	remote_spinlock_init( XPTR( local_cxy , &txt0_chdev.wait_lock ) );
[188]	190
	191	// TXT specific initialisation:
	192	// no server thread & no IRQ routing for channel 0
	193	dev_txt_init( &txt0_chdev );
[14]	194
[188]	195	// register the TXT0 in all chdev_dir[x][y] structures
[5]	196	for( x = 0 ; x < info->x_size ; x++ )
	197	{
	198	for( y = 0 ; y < info->y_size ; y++ )
	199	{
	200	cxy_t cxy = (x<<info->y_width) + y;
[19]	201	hal_remote_swd( XPTR( cxy , &chdev_dir.txt[0] ) ,
[14]	202	XPTR( local_cxy , &txt0_chdev ) );
[5]	203	}
	204	}
	205
[188]	206	kinit_dmsg("\n[INFO] %s created TXT0 chdev in cluster %x at cycle %d\n",
	207	__FUNCTION__ , local_cxy , (uint32_t)hal_time_stamp() );
[5]	208	}
[188]	209	} // end loop on devices
	210	} // end txt0_device_init()
[5]	211
[1]	212	///////////////////////////////////////////////////////////////////////////////////////////
[188]	213	// This function allocates memory and initializes the chdev descriptors for the internal
	214	// peripherals contained in the local cluster, other than the LAPIC, as specified by
	215	// the boot_info, including the linking with the driver for the specified implementation.
	216	// The relevant entries in all copies of the devices directory are initialised.
[1]	217	///////////////////////////////////////////////////////////////////////////////////////////
	218	// @ info : pointer on the local boot-info structure.
	219	///////////////////////////////////////////////////////////////////////////////////////////
[5]	220	static void internal_devices_init( boot_info_t * info )
[1]	221	{
[188]	222	boot_device_t * dev_tbl; // pointer on array of internaldevices in boot_info
	223	uint32_t dev_nr; // actual number of devices in this cluster
	224	xptr_t base; // remote pointer on segment base
	225	uint32_t func; // device functionnal index
	226	uint32_t impl; // device implementation index
	227	uint32_t i; // device index in dev_tbl
	228	uint32_t x; // X cluster coordinate
	229	uint32_t y; // Y cluster coordinate
	230	uint32_t channels; // number of channels
	231	uint32_t channel; // channel index
	232	chdev_t * chdev_ptr; // local pointer on created chdev
[1]	233
[188]	234	// get number of internal peripherals and base from boot_info
	235	dev_nr = info->int_dev_nr;
	236	dev_tbl = info->int_dev;
[1]	237
[188]	238	// loop on internal peripherals
	239	for( i = 0 ; i < dev_nr ; i++ )
	240	{
	241	base = dev_tbl[i].base;
	242	channels = dev_tbl[i].channels;
	243	func = FUNC_FROM_TYPE( dev_tbl[i].type );
	244	impl = IMPL_FROM_TYPE( dev_tbl[i].type );
[204]	245
[188]	246	//////////////////////////
	247	if( func == DEV_FUNC_MMC )
[5]	248	{
[188]	249	assert( (channels == 1) , __FUNCTION__ ,
	250	"MMC device must be single channel\n" );
[1]	251
[188]	252	// create chdev in local cluster
	253	chdev_ptr = chdev_create( func,
	254	impl,
	255	0, // channel
	256	false, // direction
	257	base );
[14]	258
[188]	259	assert( (chdev_ptr != NULL) , __FUNCTION__ ,
	260	"cannot allocate memory for MMC chdev\n" );
	261
	262	// make MMC specific initialisation
	263	dev_mmc_init( chdev_ptr );
[1]	264
[188]	265	// set the MMC field in all chdev_dir[x][y] structures
	266	for( x = 0 ; x < info->x_size ; x++ )
[1]	267	{
[188]	268	for( y = 0 ; y < info->y_size ; y++ )
	269	{
	270	cxy_t cxy = (x<<info->y_width) + y;
	271	hal_remote_swd( XPTR( cxy , &chdev_dir.mmc[local_cxy] ),
	272	XPTR( local_cxy , chdev_ptr ) );
	273	}
[1]	274	}
[188]	275
	276	if( local_cxy == 0 )
	277	kinit_dmsg("\n[INFO] %s created MMC chdev in cluster 0 at cycle %d\n",
	278	__FUNCTION__ , local_cxy , (uint32_t)hal_time_stamp() );
[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
[188]	303	kinit_dmsg("\n[INFO] %s created DMA[%d] chdev in cluster 0 at cycle %d\n",
	304	__FUNCTION__ , channel , (uint32_t)hal_time_stamp() );
	305	}
[14]	306	}
[127]	307	}
[5]	308	} // end internal_devices_init()
	309
	310	///////////////////////////////////////////////////////////////////////////////////////////
[188]	311	// This function allocates memory and initializes the chdev descriptors for the
	312	// external (shared) peripherals other than the IOPIC, as specified by the boot_info,
[5]	313	// including the dynamic linking with the driver for the specified implementation.
[188]	314	// These chdev descriptors are distributed on all clusters, using a modulo on a global
	315	// index, identically computed in all clusters: In each cluster, the local CP0 core
	316	// computes the global index for all external chdevs, and creates only the chdevs that
	317	// must be placed in the local cluster.
	318	// The relevant entries in all copies of the devices directory are initialised.
[5]	319	///////////////////////////////////////////////////////////////////////////////////////////
	320	// @ info : pointer on the local boot-info structure.
	321	///////////////////////////////////////////////////////////////////////////////////////////
	322	static void external_devices_init( boot_info_t * info )
	323	{
[188]	324	boot_device_t * dev_tbl; // pointer on array of external devices in boot_info
	325	uint32_t dev_nr; // actual number of external devices
	326	xptr_t base; // remote pointer on segment base
[5]	327	uint32_t func; // device functionnal index
	328	uint32_t impl; // device implementation index
[188]	329	uint32_t i; // device index in dev_tbl
	330	uint32_t x; // X cluster coordinate
	331	uint32_t y; // Y cluster coordinate
	332	uint32_t channels; // number of channels
	333	uint32_t channel; // channel index
	334	uint32_t directions; // number of directions (1 or 2)
	335	uint32_t rx; // direction index (0 or 1)
	336	uint32_t first_channel; // used in loop on channels for TXT
[127]	337	chdev_t * chdev; // local pointer on one channel_device descriptor
[188]	338	uint32_t ext_chdev_gid; // global index of external chdev
[5]	339
	340	// get number of peripherals and base of devices array from boot_info
[127]	341	dev_nr = info->ext_dev_nr;
[5]	342	dev_tbl = info->ext_dev;
	343
[188]	344	// initializes global index (PIC is already placed in cluster 0
	345	ext_chdev_gid = 1;
	346
[5]	347	// loop on external peripherals
[127]	348	for( i = 0 ; i < dev_nr ; i++ )
	349	{
[188]	350	base = dev_tbl[i].base;
	351	channels = dev_tbl[i].channels;
	352	func = FUNC_FROM_TYPE( dev_tbl[i].type );
	353	impl = IMPL_FROM_TYPE( dev_tbl[i].type );
[5]	354
	355	// There is one chdev per direction for NIC
[188]	356	if (func == DEV_FUNC_NIC) directions = 2;
	357	else directions = 1;
[5]	358
	359	// The TXT0 chdev has already been created
	360	if (func == DEV_FUNC_TXT) first_channel = 1;
	361	else first_channel = 0;
	362
[188]	363	// do nothing for RO, that does not require a device descriptor.
[5]	364	if( func == DEV_FUNC_ROM ) continue;
	365
[188]	366	// do nothing for PIC, that is already initialized
	367	if( func == DEV_FUNC_PIC ) continue;
[5]	368
[188]	369	// check PIC device initialized
	370	assert( (chdev_dir.pic != XPTR_NULL ) , __FUNCTION__ ,
	371	"PIC device must be initialized before other devices\n" );
	372
	373	// check external device functionnal type
	374	assert( ( (func == DEV_FUNC_IOB) \|\|
	375	(func == DEV_FUNC_IOC) \|\|
	376	(func == DEV_FUNC_TXT) \|\|
	377	(func == DEV_FUNC_NIC) \|\|
	378	(func == DEV_FUNC_FBF) ) , __FUNCTION__ ,
	379	"undefined external peripheral type\n" );
	380
[127]	381	// loops on channels
[188]	382	for( channel = first_channel ; channel < channels ; channel++ )
[127]	383	{
[5]	384	// loop on directions
[188]	385	for( rx = 0 ; rx < directions ; rx++ )
[1]	386	{
[188]	387	// compute target cluster for chdev[func,channel,direction]
	388	uint32_t offset = ext_chdev_gid % ( info->x_size * info->y_size );
[5]	389	uint32_t cx = offset / info->y_size;
	390	uint32_t cy = offset % info->y_size;
	391	uint32_t target_cxy = (cx<<info->y_width) + cy;
[1]	392
[5]	393	// allocate and initialize a local chdev
	394	// if local cluster matches target cluster
	395	if( target_cxy == local_cxy )
[1]	396	{
[5]	397	chdev = chdev_create( func,
	398	impl,
	399	channel,
[188]	400	rx, // direction
[5]	401	base );
	402
[127]	403	assert( (chdev != NULL), __FUNCTION__ ,
[5]	404	"cannot allocate external device" );
	405
	406	// make device type specific initialisation
	407	if ( func == DEV_FUNC_IOB ) dev_iob_init( chdev );
	408	else if( func == DEV_FUNC_IOC ) dev_ioc_init( chdev );
	409	else if( func == DEV_FUNC_TXT ) dev_txt_init( chdev );
	410	else if( func == DEV_FUNC_NIC ) dev_nic_init( chdev );
[188]	411	else if( func == DEV_FUNC_FBF ) dev_fbf_init( chdev );
[5]	412
[127]	413	// all external (shared) devices are remotely accessible
[5]	414	// initialize the replicated chdev_dir[x][y] structures
[127]	415	// defining the extended pointers on chdev descriptors
	416	xptr_t * entry;
	417
[188]	418	if(func==DEV_FUNC_IOB ) entry = &chdev_dir.iob;
	419	if(func==DEV_FUNC_IOC ) entry = &chdev_dir.ioc[channel];
	420	if(func==DEV_FUNC_TXT ) entry = &chdev_dir.txt[channel];
	421	if(func==DEV_FUNC_FBF ) entry = &chdev_dir.fbf[channel];
	422	if((func==DEV_FUNC_NIC) && (rx==0)) entry = &chdev_dir.nic_tx[channel];
	423	if((func==DEV_FUNC_NIC) && (rx==1)) entry = &chdev_dir.nic_rx[channel];
[127]	424
[1]	425	for( x = 0 ; x < info->x_size ; x++ )
	426	{
	427	for( y = 0 ; y < info->y_size ; y++ )
	428	{
	429	cxy_t cxy = (x<<info->y_width) + y;
[188]	430	hal_remote_swd( XPTR( cxy , entry ),
	431	XPTR( local_cxy , chdev ) );
[5]	432	}
[1]	433	}
	434
[188]	435	kinit_dmsg("\n[INFO] %s create chdev %s[%d] in cluster %x at cycle %d\n",
	436	__FUNCTION__ , chdev_func_str( func ), channel,
	437	local_cxy , (uint32_t)hal_time_stamp() );
[5]	438
	439	} // end if match
	440
[19]	441	// increment chdev global index (matching or not)
[188]	442	ext_chdev_gid++;
[5]	443
	444	} // end loop on directions
	445	} // end loop on channels
[188]	446	} // end loop on devices
	447	} // end external_devices_init()
[5]	448
[188]	449	///////////////////////////////////////////////////////////////////////////////////////////
	450	// This function is called by CP0 in cluster 0 to allocate memory and initialize the PIC
	451	// device, namely the informations attached to the external IOPIC controller.
	452	// This initialisation must be done before other devices initialisation because the IRQ
	453	// routing infrastructure is required for internal and external devices initialisation.
	454	///////////////////////////////////////////////////////////////////////////////////////////
	455	// @ info : pointer on the local boot-info structure.
	456	///////////////////////////////////////////////////////////////////////////////////////////
	457	static void iopic_init( boot_info_t * info )
	458	{
	459	boot_device_t * dev_tbl; // pointer on boot_info external devices array
	460	uint32_t dev_nr; // actual number of external devices
	461	xptr_t base; // remote pointer on segment base
	462	uint32_t func; // device functionnal index
	463	uint32_t impl; // device implementation index
	464	uint32_t i; // device index in dev_tbl
	465	uint32_t x; // cluster X coordinate
	466	uint32_t y; // cluster Y coordinate
	467	bool_t found; // IOPIC found
	468	chdev_t * chdev; // pointer on PIC chdev descriptor
	469
	470	// get number of external peripherals and base of array from boot_info
	471	dev_nr = info->ext_dev_nr;
	472	dev_tbl = info->ext_dev;
	473
	474	// loop on external peripherals to get the IOPIC
	475	for( i = 0 , found = false ; i < dev_nr ; i++ )
	476	{
	477	func = FUNC_FROM_TYPE( dev_tbl[i].type );
	478
[127]	479	if( func == DEV_FUNC_PIC )
[1]	480	{
[188]	481	base = dev_tbl[i].base;
	482	impl = IMPL_FROM_TYPE( dev_tbl[i].type );
	483	found = true;
	484	break;
	485	}
	486	}
[5]	487
[188]	488	assert( found , __FUNCTION__ , "PIC device not found\n" );
[1]	489
[188]	490	// allocate and initialize the PIC chdev in local cluster
	491	chdev = chdev_create( func,
	492	impl,
	493	0, // channel
	494	0, // direction,
	495	base );
[5]	496
[188]	497	assert( (chdev != NULL), __FUNCTION__ , "no memory for PIC chdev\n" );
[5]	498
[188]	499	// make PIC device type specific initialisation
	500	dev_pic_init( chdev );
[1]	501
[188]	502	// register extended pointer on PIC chdev in "chdev_dir" array in all clusters
	503	xptr_t * entry = &chdev_dir.pic;
	504
	505	for( x = 0 ; x < info->x_size ; x++ )
	506	{
	507	for( y = 0 ; y < info->y_size ; y++ )
	508	{
	509	cxy_t cxy = (x<<info->y_width) + y;
	510	hal_remote_swd( XPTR( cxy , entry ) ,
	511	XPTR( local_cxy , chdev ) );
	512	}
	513	}
[1]	514
[188]	515	// initialize the "iopic_input" structure
	516	// defining how external IRQs are connected to IOPIC
	517	uint32_t id;
	518	uint8_t valid;
	519	uint32_t type;
	520	uint8_t channel;
	521	uint8_t is_rx;
	522
	523	for( id = 0 ; id < CONFIG_MAX_EXTERNAL_IRQS ; id++ )
	524	{
	525	valid = dev_tbl[i].irq[id].valid;
	526	type = dev_tbl[i].irq[id].dev_type;
	527	channel = dev_tbl[i].irq[id].channel;
	528	is_rx = dev_tbl[i].irq[id].is_rx;
	529
	530	if( valid ) // only valid inputs are registered
	531	{
	532	uint32_t * index; // local pointer on one entry
	533	uint16_t func = FUNC_FROM_TYPE( type );
	534
	535	if ( func == DEV_FUNC_TXT )
	536	index = &iopic_input.txt[channel];
	537	else if( func == DEV_FUNC_IOC )
	538	index = &iopic_input.ioc[channel];
	539	else if( (func == DEV_FUNC_NIC) && (is_rx == 0) )
	540	index = &iopic_input.nic_tx[channel];
	541	else if( (func == DEV_FUNC_NIC) && (is_rx != 0) )
	542	index = &iopic_input.nic_rx[channel];
	543	else if( func == DEV_FUNC_IOB )
	544	index = &iopic_input.iob;
	545	else
	546	assert( false , __FUNCTION__ , "illegal source device for IOPIC input" );
	547
	548	// set entry in local structure
	549	*index = id;
	550	}
	551	}
	552
[204]	553	kinit_dmsg("\n[INFO] %s created PIC chdev in cluster %x at cycle %d\n",
[188]	554	__FUNCTION__ , local_cxy , (uint32_t)hal_time_stamp() );
	555
	556	} // end iopic_init()
	557
[1]	558	///////////////////////////////////////////////////////////////////////////////////////////
[188]	559	// This function is called by all CP0s in all cluster to complete the PIC device
	560	// initialisation, namely the informations attached to the LAPIC controller.
	561	// This initialisation must be done after the IOPIC initialisation, but before other
	562	// devices initialisation because the IRQ routing infrastructure is required for both
	563	// internal and external devices initialisation.
	564	///////////////////////////////////////////////////////////////////////////////////////////
	565	// @ info : pointer on the local boot-info structure.
	566	///////////////////////////////////////////////////////////////////////////////////////////
	567	static void lapic_init( boot_info_t * info )
	568	{
	569	boot_device_t * dev_tbl; // pointer on boot_info internal devices array
	570	uint32_t dev_nr; // number of internal devices
	571	uint32_t i; // device index in dev_tbl
	572	xptr_t base; // remote pointer on segment base
	573	uint32_t func; // device functionnal type in boot_info
	574	bool_t found; // LAPIC found
	575
	576	// get number of internal peripherals and base
	577	dev_nr = info->int_dev_nr;
	578	dev_tbl = info->int_dev;
	579
	580	// loop on internal peripherals to get the lapic device
	581	for( i = 0 , found = false ; i < dev_nr ; i++ )
	582	{
	583	func = FUNC_FROM_TYPE( dev_tbl[i].type );
	584
	585	if( func == DEV_FUNC_ICU )
	586	{
	587	base = dev_tbl[i].base;
	588	found = true;
	589	break;
	590	}
	591	}
	592
	593	// if the LAPIC controller is not defined in the boot_info,
	594	// we simply don't initialize the PIC extensions in the kernel,
	595	// making the assumption that the LAPIC related informations
	596	// are hidden in the hardware specific PIC driver.
	597	if( found )
	598	{
	599	// initialise the PIC extensions for
	600	// the core descriptor and core manager extensions
	601	dev_pic_extend_init( (uint32_t *)GET_PTR( base ) );
	602
	603	// initialize the "lapic_input" structure
	604	// defining how internal IRQs are connected to LAPIC
	605	uint32_t id;
	606	uint8_t valid;
	607	uint8_t channel;
	608	uint32_t func;
	609
	610	for( id = 0 ; id < CONFIG_MAX_INTERNAL_IRQS ; id++ )
	611	{
	612	valid = dev_tbl[i].irq[id].valid;
	613	func = FUNC_FROM_TYPE( dev_tbl[i].irq[id].dev_type );
	614	channel = dev_tbl[i].irq[id].channel;
	615
	616	if( valid ) // only valid local IRQs are registered
	617	{
	618	if ( func == DEV_FUNC_MMC ) lapic_input.mmc = id;
	619	else if( func == DEV_FUNC_DMA ) lapic_input.dma[channel] = id;
	620	else assert( false , __FUNCTION__ , "illegal source device for LAPIC input" );
	621	}
	622	}
	623	}
	624	} // end lapic_init()
	625
	626	///////////////////////////////////////////////////////////////////////////////////////////
[14]	627	// This static function returns the identifiers of the calling core.
	628	///////////////////////////////////////////////////////////////////////////////////////////
	629	// @ info : pointer on boot_info structure.
	630	// @ lid : [out] core local index in cluster.
	631	// @ cxy : [out] cluster identifier.
	632	// @ lid : [out] core global identifier (hardware).
	633	// @ return 0 if success / return EINVAL if not found.
	634	///////////////////////////////////////////////////////////////////////////////////////////
[23]	635	static error_t get_core_identifiers( boot_info_t * info,
	636	lid_t * lid,
[14]	637	cxy_t * cxy,
	638	gid_t * gid )
	639	{
[127]	640	uint32_t i;
[14]	641	gid_t global_id;
[19]	642
[14]	643	// get global identifier from hardware register
[127]	644	global_id = hal_get_gid();
[14]	645
	646	// makes an associative search in boot_info to get (cxy,lid) from global_id
	647	for( i = 0 ; i < info->cores_nr ; i++ )
	648	{
	649	if( global_id == info->core[i].gid )
	650	{
	651	*lid = info->core[i].lid;
	652	*cxy = info->core[i].cxy;
	653	*gid = global_id;
	654	return 0;
	655	}
	656	}
	657	return EINVAL;
[19]	658	}
[14]	659
	660	///////////////////////////////////////////////////////////////////////////////////////////
[1]	661	// This function is the entry point for the kernel initialisation.
[19]	662	// It is executed by all cores in all clusters, but only core[0], called CP0,
[14]	663	// initializes the shared resources such as the cluster manager, or the local peripherals.
[19]	664	// To comply with the multi-kernels paradigm, it accesses only local cluster memory, using
	665	// only information contained in the local boot_info_t structure, set by the bootloader.
[103]	666	// Only CP0 in cluster 0 print the log messages.
[1]	667	///////////////////////////////////////////////////////////////////////////////////////////
	668	// @ info : pointer on the local boot-info structure.
	669	///////////////////////////////////////////////////////////////////////////////////////////
	670	void kernel_init( boot_info_t * info )
	671	{
[204]	672	lid_t core_lid = -1; // running core local index
	673	cxy_t core_cxy = -1; // running core cluster identifier
	674	gid_t core_gid; // running core hardware identifier
	675	cluster_t * cluster; // pointer on local cluster manager
	676	core_t * core; // pointer on running core descriptor
	677	thread_t * thread; // pointer on idle thread descriptor
	678
	679	xptr_t vfs_root_inode_xp; // extended pointer on VFS root inode
	680	xptr_t devfs_dev_inode_xp; // extended pointer on DEVFS dev inode
	681	xptr_t devfs_external_inode_xp; // extended pointer on DEVFS external inode
	682	xptr_t devfs_internal_inode_xp; // extended pointer on DEVFS internal inode
	683
[1]	684	error_t error;
	685
[188]	686	cxy_t io_cxy = info->io_cxy;
	687
	688	/////////////////////////////////////////////////////////////////////////////////
	689	// STEP 0 : Each core get its core identifier from boot_info, and makes
	690	// a partial initialisation of its private idle thread descriptor.
	691	// CP0 initializes the "local_cxy" global variable.
	692	// CP0 in cluster IO initializes the TXT0 chdev to print log messages.
	693	/////////////////////////////////////////////////////////////////////////////////
	694
[23]	695	error = get_core_identifiers( info,
[14]	696	&core_lid,
	697	&core_cxy,
	698	&core_gid );
[1]	699
[127]	700	// CP0 initializes cluster identifier
[14]	701	if( core_lid == 0 ) local_cxy = info->cxy;
[1]	702
[127]	703	// each core gets a pointer on its private idle thread descriptor
	704	thread = (thread_t )( idle_threads + (core_lid CONFIG_THREAD_DESC_SIZE) );
[68]	705
[127]	706	// each core registers this thread pointer in hardware register
[68]	707	hal_set_current_thread( thread );
[71]	708
[188]	709	// each core initializes the idle thread "locks_root" and "xlocks_root" fields
[124]	710	list_root_init( &thread->locks_root );
[188]	711	xlist_root_init( XPTR( local_cxy , &thread->xlocks_root ) );
[124]	712
[188]	713	// CP0 in I/O cluster initialises TXT0 chdev descriptor
	714	if( (core_lid == 0) && (core_cxy == io_cxy) ) txt0_device_init( info );
[14]	715
	716	/////////////////////////////////////////////////////////////////////////////////
[188]	717	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
[14]	718	(info->x_size * info->y_size) );
	719	barrier_wait( &local_barrier , info->cores_nr );
	720
[188]	721	if( (core_lid == 0) && (local_cxy == 0) )
	722	kinit_dmsg("\n[INFO] %s exit barrier 0 at cycle %d : TXT0 initialized\n",
	723	__FUNCTION__, (uint32_t)hal_time_stamp());
[14]	724
[188]	725	/////////////////////////////////////////////////////////////////////////////
	726	// STEP 1 : all cores check its core identifier.
	727	// CP0 initializes the local cluster manager.
	728	// This includes the memory allocators.
	729	/////////////////////////////////////////////////////////////////////////////
	730
	731	// all cores check identifiers
[14]	732	if( error )
[1]	733	{
[103]	734	nolock_printk("\n[PANIC] in %s : illegal core identifiers"
[14]	735	" gid = %x / cxy = %x / lid = %d\n",
	736	__FUNCTION__ , core_lid , core_cxy , core_lid );
	737	hal_core_sleep();
[1]	738	}
	739
[188]	740	// CP0 initializes cluster manager
[14]	741	if( core_lid == 0 )
[1]	742	{
	743	error = cluster_init( info );
	744
[14]	745	if( error )
	746	{
[188]	747	nolock_printk("\n[PANIC] in %s : cannot initialise cluster %x",
[14]	748	__FUNCTION__ , local_cxy );
	749	hal_core_sleep();
	750	}
	751	}
[5]	752
[14]	753	/////////////////////////////////////////////////////////////////////////////////
[188]	754	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
[14]	755	(info->x_size * info->y_size) );
	756	barrier_wait( &local_barrier , info->cores_nr );
	757	/////////////////////////////////////////////////////////////////////////////////
[1]	758
[188]	759	if( (core_lid == 0) && (local_cxy == 0) )
	760	kinit_dmsg("\n[INFO] %s exit barrier 1 at cycle %d : clusters initialised\n",
	761	__FUNCTION__, (uint32_t)hal_time_stamp());
[1]	762
[188]	763	/////////////////////////////////////////////////////////////////////////////////
	764	// STEP 2 : all CP0s initialize the process_zero descriptor.
	765	// CP0 in cluster 0 initialises the IOPIC device.
	766	// all CP0s complete the distibuted LAPIC initialization.
	767	/////////////////////////////////////////////////////////////////////////////////
	768
	769	// all cores get pointer on local cluster manager & core descriptor
[14]	770	cluster = &cluster_manager;
[127]	771	core = &cluster->core_tbl[core_lid];
[1]	772
[188]	773	// all CP0s initialize the process_zero descriptor
[101]	774	if( core_lid == 0 ) process_reference_init( &process_zero , 0 , XPTR_NULL );
[5]	775
[188]	776	// CP0 in cluster 0 initializes the PIC chdev,
	777	if( (core_lid == 0) && (local_cxy == 0) ) iopic_init( info );
	778
	779	// all CP0s initialize their local LAPIC extension,
	780	if( core_lid == 0 ) lapic_init( info );
[124]	781
[188]	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) )
	789	kinit_dmsg("\n[INFO] %s exit barrier 2 at cycle %d : PIC initialised\n",
	790	__FUNCTION__, (uint32_t)hal_time_stamp());
[1]	791
[188]	792	////////////////////////////////////////////////////////////////////////////////
	793	// STEP 3 : all CP0s initialize their local chdev descriptors
	794	// (both internal devices and external devices).
	795	////////////////////////////////////////////////////////////////////////////////
[5]	796
[188]	797	// CP0 scan the internal (private) peripherals,
	798	// and allocates memory for the corresponding chdev descriptors.
	799	if( core_lid == 0 ) internal_devices_init( info );
	800
[1]	801
[50]	802	// All CP0s contribute to initialise external peripheral chdev descriptors.
[14]	803	// Each CP0[cxy] scan the set of external (shared) peripherals (but the TXT0),
	804	// and allocates memory for the chdev descriptors that must be placed
[127]	805	// on the (cxy) cluster according to the global index value.
[188]	806
[14]	807	if( core_lid == 0 ) external_devices_init( info );
[1]	808
[14]	809	/////////////////////////////////////////////////////////////////////////////////
[188]	810	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
[14]	811	(info->x_size * info->y_size) );
	812	barrier_wait( &local_barrier , info->cores_nr );
	813	/////////////////////////////////////////////////////////////////////////////////
[5]	814
[188]	815	if( (core_lid == 0) && (local_cxy == 0) )
	816	kinit_dmsg("\n[INFO] %s exit barrier 3 at cycle %d : all chdev initialised\n",
	817	__FUNCTION__, (uint32_t)hal_time_stamp());
[1]	818
[188]	819	/////////////////////////////////////////////////////////////////////////////////
	820	// STEP 4 : Alls cores initialize their private IDLE thread.
	821	// Only CP0 in cluster 0 creates the VFS root inode.
	822	// It access the boot device to initialize the file system context.
	823	/////////////////////////////////////////////////////////////////////////////////
	824
	825	// all cores create idle thread descriptor
[14]	826	error = thread_kernel_init( thread,
[127]	827	THREAD_IDLE,
	828	&thread_idle_func,
[14]	829	NULL,
	830	core_lid );
	831	if( error )
[1]	832	{
[103]	833	nolock_printk("\n[PANIC] in %s : core[%x][%d] cannot initialize idle thread\n",
	834	__FUNCTION__ , local_cxy , core_lid );
[14]	835	hal_core_sleep();
[1]	836	}
	837
[188]	838	// all cores register idle thread in scheduler
[103]	839	core->scheduler.idle = thread;
[1]	840
[188]	841	// all core activate the idle thread
[103]	842	thread_unblock( XPTR( local_cxy , thread ) , THREAD_BLOCKED_GLOBAL );
	843
[188]	844	if( (core_lid == 0) && (local_cxy == 0) )
[103]	845	{
[188]	846	kinit_dmsg("\n[INFO] %s : created idle thread %x at cycle %d\n",
	847	__FUNCTION__ , thread , (uint32_t)hal_time_stamp());
[14]	848	}
	849
[188]	850	// CPO in cluster 0 creates the VFS root
	851	if( (core_lid == 0) && (local_cxy == 0 ) )
[14]	852	{
[188]	853	vfs_root_inode_xp = XPTR_NULL;
[23]	854
[188]	855	// File System must be FATFS in this implementation,
	856	// but other File System can be introduced here
[23]	857	if( CONFIG_VFS_ROOT_IS_FATFS )
	858	{
[188]	859	// 1. create FATFS context in cluster 0
	860	fatfs_ctx_t * fatfs_ctx = fatfs_ctx_alloc();
	861
	862	nolock_assert( (fatfs_ctx != NULL) , __FUNCTION__ ,
	863	"cannot create FATFS context in cluster 0\n" );
	864
	865	// 2. access boot device to initialize FATFS context
	866	fatfs_ctx_init( fatfs_ctx );
	867
	868	// 3. get various informations from FATFS context
	869	uint32_t root_dir_cluster = fatfs_ctx->root_dir_cluster;
	870	uint32_t cluster_size = fatfs_ctx->bytes_per_sector *
	871	fatfs_ctx->sectors_per_cluster;
	872	uint32_t total_clusters = fatfs_ctx->fat_sectors_count << 7;
	873
	874	// 4. create VFS root inode in cluster 0
	875	error = vfs_inode_create( XPTR_NULL, // dentry_xp
	876	FS_TYPE_FATFS, // fs_type
	877	INODE_TYPE_DIR, // inode_type
	878	(void *)(intptr_t)root_dir_cluster, // extend
	879	0, // attr
	880	0, // rights
	881	0, // uid
	882	0, // gid
	883	&vfs_root_inode_xp ); // return
	884
	885	nolock_assert( (error == 0) , __FUNCTION__ ,
	886	"cannot create VFS root inode\n" );
	887
	888	// 5. initialize VFS context for FAT in cluster 0
	889	vfs_ctx_init( FS_TYPE_FATFS, // file system type
	890	0, // attributes
	891	total_clusters,
	892	cluster_size,
	893	vfs_root_inode_xp, // VFS root
	894	fatfs_ctx ); // extend
[23]	895	}
	896	else
	897	{
[103]	898	nolock_printk("\n[PANIC] in %s : root FS must be FATFS\n", __FUNCTION__ );
[23]	899	hal_core_sleep();
	900	}
	901
[188]	902	// register VFS root inode in process_zero
	903	process_zero.vfs_root_xp = vfs_root_inode_xp;
	904	process_zero.vfs_cwd_xp = vfs_root_inode_xp;
	905	}
	906
	907	/////////////////////////////////////////////////////////////////////////////////
	908	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
	909	(info->x_size * info->y_size) );
	910	barrier_wait( &local_barrier , info->cores_nr );
	911	/////////////////////////////////////////////////////////////////////////////////
	912
	913	if( (core_lid == 0) && (local_cxy == 0) )
	914	kinit_dmsg("\n[INFO] %s exit barrier 4 at cycle %d : VFS OK in cluster 0\n",
	915	__FUNCTION__, (uint32_t)hal_time_stamp());
	916
	917	/////////////////////////////////////////////////////////////////////////////////
	918	// STEP 5 : Other CP0s allocate memory for the selected FS context,
	919	// and initialise both the local FS context and the local VFS context
	920	// from values stored in cluster 0.
	921	// They get the VFS root inode extended pointer from cluster 0.
	922	/////////////////////////////////////////////////////////////////////////////////
	923
	924	if( (core_lid == 0) && (local_cxy != 0) )
	925	{
	926	// File System must be FATFS in this implementation,
	927	// but other File System can be introduced here
	928	if( CONFIG_VFS_ROOT_IS_FATFS )
[23]	929	{
[188]	930	// allocate memory for FATFS context
	931	fatfs_ctx_t * fatfs_ctx = fatfs_ctx_alloc();
	932
	933	nolock_assert( (fatfs_ctx != NULL) , __FUNCTION__ ,
	934	"cannot create FATFS context\n" );
	935
	936	// get local pointer on VFS context for FATFS
	937	vfs_ctx_t * vfs_ctx = &fs_context[FS_TYPE_FATFS];
	938
	939	// copy VFS context from cluster 0 to local cluster
	940	hal_remote_memcpy( XPTR( local_cxy , vfs_ctx ),
	941	XPTR( 0 , vfs_ctx ),
	942	sizeof(vfs_ctx_t) );
	943
	944	// copy FATFS context from cluster 0 to local cluster
	945	hal_remote_memcpy( XPTR( local_cxy , fatfs_ctx ),
	946	XPTR( 0 , fatfs_ctx ),
	947	sizeof(fatfs_ctx_t) );
	948
	949	// update extend field in local copy of VFS context
	950	vfs_ctx->extend = fatfs_ctx;
[23]	951	}
	952
[188]	953	// get extended pointer on VFS root inode from cluster 0
	954	vfs_root_inode_xp = hal_remote_lwd( XPTR( 0 , process_zero.vfs_root_xp ) );
[101]	955
[188]	956	// update local process_zero descriptor
	957	process_zero.vfs_root_xp = vfs_root_inode_xp;
	958	process_zero.vfs_cwd_xp = vfs_root_inode_xp;
[14]	959	}
	960
[188]	961	/////////////////////////////////////////////////////////////////////////////////
	962	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
	963	(info->x_size * info->y_size) );
	964	barrier_wait( &local_barrier , info->cores_nr );
[204]	965	/////////////////////////////////////////////////////////////////////////////////
[101]	966
[188]	967	if( (core_lid == 0) && (local_cxy == 0) )
	968	kinit_dmsg("\n[INFO] %s exit barrier 5 at cycle %d : VFS OK in all clusters\n",
	969	__FUNCTION__, (uint32_t)hal_time_stamp());
	970
	971
	972	/////////////////////////////////////////////////////////////////////////////////
	973	// STEP 6 : CP0 in cluster IO makes the global DEVFS tree initialisation:
[204]	974	// It creates the DEVFS directory "dev", and the DEVFS "external"
	975	// directory in cluster IO and mount these inodes into VFS.
[188]	976	/////////////////////////////////////////////////////////////////////////////////
	977
	978	if( (core_lid == 0) && (local_cxy == io_cxy) )
[1]	979	{
[188]	980	// create "dev" and "external" directories.
	981	devfs_global_init( process_zero.vfs_root_xp,
[204]	982	&devfs_dev_inode_xp,
[188]	983	&devfs_external_inode_xp );
	984
	985	// creates the DEVFS context in cluster IO
	986	devfs_ctx_t * devfs_ctx = devfs_ctx_alloc();
	987
	988	nolock_assert( (devfs_ctx != NULL) , __FUNCTION__ ,
	989	"cannot create DEVFS context in cluster IO\n");
	990
	991	// register DEVFS root and external directories
[204]	992	devfs_ctx_init( devfs_ctx, devfs_dev_inode_xp, devfs_external_inode_xp );
[188]	993	}
	994
	995	/////////////////////////////////////////////////////////////////////////////////
	996	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
	997	(info->x_size * info->y_size) );
	998	barrier_wait( &local_barrier , info->cores_nr );
[204]	999	/////////////////////////////////////////////////////////////////////////////////
[188]	1000
	1001	if( (core_lid == 0) && (local_cxy == 0) )
	1002	kinit_dmsg("\n[INFO] %s exit barrier 6 at cycle %d : DEVFS OK in cluster IO\n",
	1003	__FUNCTION__, (uint32_t)hal_time_stamp());
	1004
	1005	/////////////////////////////////////////////////////////////////////////////////
	1006	// STEP 7 : All CP0s complete in parallel the DEVFS tree initialization.
	1007	// Each CP0 get the "dev" and "external" extended pointers from
[204]	1008	// values stored in cluster IO.
	1009	// Then CP0 in cluster(i) creates the DEVFS "internal directory,
	1010	// and creates the pseudo-files for all chdevs in cluster (i).
[188]	1011	/////////////////////////////////////////////////////////////////////////////////
	1012
	1013	if( core_lid == 0 )
	1014	{
	1015	// get extended pointer on "extend" field of VFS context for DEVFS in cluster IO
	1016	xptr_t extend_xp = XPTR( io_cxy , &fs_context[FS_TYPE_DEVFS].extend );
	1017
	1018	// get pointer on DEVFS context in cluster IO
	1019	devfs_ctx_t * devfs_ctx = hal_remote_lpt( extend_xp );
	1020
[204]	1021	devfs_dev_inode_xp = hal_remote_lwd( XPTR( io_cxy ,
	1022	&devfs_ctx->dev_inode_xp ) );
	1023	devfs_external_inode_xp = hal_remote_lwd( XPTR( io_cxy ,
	1024	&devfs_ctx->external_inode_xp ) );
[188]	1025
[204]	1026	// populate DEVFS in all clusters
	1027	devfs_local_init( devfs_dev_inode_xp,
	1028	devfs_external_inode_xp,
	1029	&devfs_internal_inode_xp );
[188]	1030	}
	1031
	1032	/////////////////////////////////////////////////////////////////////////////////
	1033	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
	1034	(info->x_size * info->y_size) );
	1035	barrier_wait( &local_barrier , info->cores_nr );
[204]	1036	/////////////////////////////////////////////////////////////////////////////////
[188]	1037
	1038	if( (core_lid == 0) && (local_cxy == 0) )
	1039	kinit_dmsg("\n[INFO] %s exit barrier 7 at cycle %d : DEVFS OK in all clusters\n",
	1040	__FUNCTION__, (uint32_t)hal_time_stamp());
	1041
[204]	1042	#if CONFIG_KINIT_DEBUG
	1043	vfs_display( vfs_root_inode_xp );
	1044	#endif
	1045
[188]	1046	/////////////////////////////////////////////////////////////////////////////////
[204]	1047	// STEP 8 : CP0 in I/O cluster creates the first user process (process_init)
[188]	1048	/////////////////////////////////////////////////////////////////////////////////
	1049
	1050	if( (core_lid == 0) && (local_cxy == io_cxy) )
	1051	{
[101]	1052	process_init_create();
[188]	1053	}
[101]	1054
[188]	1055	/////////////////////////////////////////////////////////////////////////////////
	1056	if( core_lid == 0 ) remote_barrier( XPTR( info->io_cxy , &global_barrier ),
	1057	(info->x_size * info->y_size) );
	1058	barrier_wait( &local_barrier , info->cores_nr );
[204]	1059	/////////////////////////////////////////////////////////////////////////////////
[188]	1060
	1061	if( (core_lid == 0) && (local_cxy == 0) )
	1062	kinit_dmsg("\n[INFO] %s exit barrier 8 at cycle %d : process init created\n",
	1063	__FUNCTION__ , (uint32_t)hal_time_stamp() );
	1064
	1065	/////////////////////////////////////////////////////////////////////////////////
	1066	// STEP 9 : CP0 in cluster 0 print banner
	1067	/////////////////////////////////////////////////////////////////////////////////
	1068
	1069	if( (core_lid == 0) && (local_cxy == io_cxy) )
	1070	{
[5]	1071	print_banner( (info->x_size * info->y_size) , info->cores_nr );
[68]	1072
	1073	kinit_dmsg("\n\n* memory fooprint of main kernet objects *\n"
	1074	" - thread descriptor : %d bytes\n"
	1075	" - process descriptor : %d bytes\n"
	1076	" - cluster manager : %d bytes\n"
	1077	" - chdev descriptor : %d bytes\n"
	1078	" - core descriptor : %d bytes\n"
	1079	" - scheduler : %d bytes\n"
	1080	" - rpc fifo : %d bytes\n"
	1081	" - page descriptor : %d bytes\n"
	1082	" - mapper root : %d bytes\n"
	1083	" - ppm manager : %d bytes\n"
	1084	" - kcm manager : %d bytes\n"
	1085	" - khm manager : %d bytes\n"
	1086	" - vmm manager : %d bytes\n"
	1087	" - gpt root : %d bytes\n"
	1088	" - list item : %d bytes\n"
	1089	" - xlist item : %d bytes\n"
	1090	" - spinlock : %d bytes\n"
	1091	" - remote spinlock : %d bytes\n"
	1092	" - rwlock : %d bytes\n"
	1093	" - remote rwlock : %d bytes\n",
[127]	1094	sizeof( thread_t ),
[68]	1095	sizeof( process_t ),
	1096	sizeof( cluster_t ),
	1097	sizeof( chdev_t ),
	1098	sizeof( core_t ),
	1099	sizeof( scheduler_t ),
	1100	sizeof( rpc_fifo_t ),
	1101	sizeof( page_t ),
	1102	sizeof( mapper_t ),
	1103	sizeof( ppm_t ),
	1104	sizeof( kcm_t ),
	1105	sizeof( khm_t ),
	1106	sizeof( vmm_t ),
	1107	sizeof( gpt_t ),
	1108	sizeof( list_entry_t ),
	1109	sizeof( xlist_entry_t ),
	1110	sizeof( spinlock_t ),
	1111	sizeof( remote_spinlock_t ),
	1112	sizeof( rwlock_t ),
	1113	sizeof( remote_rwlock_t ));
[1]	1114	}
	1115
[127]	1116	// each core activates its private PTI IRQ
[188]	1117	dev_pic_enable_timer( CONFIG_SCHED_TICK_PERIOD );
[14]	1118
[188]	1119	if( (core_lid == 0) && (local_cxy == io_cxy) )
	1120	thread_dmsg("\n[INFO] %s complete kernel init in cluster 0 at cycle %d\n"
	1121	__FUNCTION__ , (uint32_t)hal_time_stamp() )
[14]	1122
	1123	// each core jump to idle thread
[50]	1124	thread_idle_func();
[127]	1125	}
[14]	1126

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