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source: trunk/kernel/kern/kernel_init.c @ 433

Last change on this file since 433 was 428, checked in by alain, 6 years ago
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File size: 52.6 KB

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

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