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source: trunk/kernel/kern/kernel_init.c @ 247

Last change on this file since 247 was 247, checked in by max@…, 7 years ago
Rename soclib_tty->txt_rs232.
File size: 50.5 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_icu.h>
	48	#include <dev_mmc.h>
[5]	49	#include <dev_dma.h>
	50	#include <dev_iob.h>
[1]	51	#include <dev_ioc.h>
[5]	52	#include <dev_txt.h>
[1]	53	#include <dev_pic.h>
	54	#include <printk.h>
	55	#include <vfs.h>
[23]	56	#include <devfs.h>
[68]	57	#include <mapper.h>
[1]	58
[5]	59	#define KERNEL_INIT_SYNCHRO 0xA5A5B5B5
[1]	60
	61	///////////////////////////////////////////////////////////////////////////////////////////
	62	// All these global variables are replicated in all clusters.
	63	// They are initialised by the kernel_init() function.
[14]	64	//
[127]	65	// WARNING : The section names have been defined to control the base addresses of the
[14]	66	// boot_info structure and the idle thread descriptors, through the kernel.ld script:
[127]	67	// - the boot_info structure is built by the bootloader, and used by kernel_init.
	68	// it must be the first object in the kdata segment.
[14]	69	// - the array of idle threads descriptors must be placed on the first page boundary after
	70	// the boot_info structure in the kdata segment.
[1]	71	///////////////////////////////////////////////////////////////////////////////////////////
	72
[5]	73	// This variable defines the local boot_info structure
	74	__attribute__((section(".kinfo")))
[14]	75	boot_info_t boot_info;
[5]	76
[14]	77	// This variable defines the "idle" threads descriptors array
	78	__attribute__((section(".kidle")))
	79	char idle_threads[CONFIG_THREAD_DESC_SIZE *
	80	CONFIG_MAX_LOCAL_CORES] CONFIG_PPM_PAGE_ALIGNED;
	81
[127]	82	// This variable defines the local cluster manager
[5]	83	__attribute__((section(".kdata")))
[19]	84	cluster_t cluster_manager CONFIG_CACHE_LINE_ALIGNED;
[1]	85
[188]	86	// This variable defines the TXT0 kernel terminal
	87	__attribute__((section(".kdata")))
	88	chdev_t txt0_chdev CONFIG_CACHE_LINE_ALIGNED;
	89
[14]	90	// This variables define the kernel process0 descriptor
[5]	91	__attribute__((section(".kdata")))
[19]	92	process_t process_zero CONFIG_CACHE_LINE_ALIGNED;
[1]	93
[14]	94	// This variable defines extended pointers on the distributed chdevs
[5]	95	__attribute__((section(".kdata")))
[14]	96	chdev_directory_t chdev_dir CONFIG_CACHE_LINE_ALIGNED;
[1]	97
[188]	98	// This variable contains the input IRQ indexes for the IOPIC controller
[5]	99	__attribute__((section(".kdata")))
[246]	100	iopic_input_t iopic_input CONFIG_CACHE_LINE_ALIGNED;
[1]	101
[188]	102	// This variable contains the input IRQ indexes for the LAPIC controller
[5]	103	__attribute__((section(".kdata")))
[188]	104	lapic_input_t lapic_input CONFIG_CACHE_LINE_ALIGNED;
[1]	105
[14]	106	// This variable defines the local cluster identifier
[5]	107	__attribute__((section(".kdata")))
[14]	108	cxy_t local_cxy CONFIG_CACHE_LINE_ALIGNED;
[5]	109
[127]	110	// This variable is used for CP0 cores synchronisation in kernel_init()
[5]	111	__attribute__((section(".kdata")))
[14]	112	remote_barrier_t global_barrier CONFIG_CACHE_LINE_ALIGNED;
[1]	113
[127]	114	// This variable is used for local cores synchronisation in kernel_init()
[14]	115	__attribute__((section(".kdata")))
	116	barrier_t local_barrier CONFIG_CACHE_LINE_ALIGNED;
	117
[127]	118	// This variable defines the array of supported File System contexts
[50]	119	__attribute__((section(".kdata")))
	120	vfs_ctx_t fs_context[FS_TYPES_NR] CONFIG_CACHE_LINE_ALIGNED;
	121
	122
[1]	123	///////////////////////////////////////////////////////////////////////////////////////////
[5]	124	// This function displays the ALMOS_MKH banner.
[1]	125	///////////////////////////////////////////////////////////////////////////////////////////
[5]	126	static void print_banner( uint32_t nclusters , uint32_t ncores )
[127]	127	{
[5]	128	printk("\n"
	129	" _ __ __ _____ ______ __ __ _ __ _ _ \n"
	130	" /\\ \| \| \| \\ / \| / ___ \\ / _____\| \| \\ / \| \| \| / / \| \| \| \| \n"
	131	" / \\ \| \| \| \\/ \| \| / \\ \| \| / \| \\/ \| \| \|/ / \| \| \| \| \n"
	132	" / /\\ \\ \| \| \| \|\\ /\| \| \| \| \| \| \| \|_____ ___ \| \|\\ /\| \| \| / \| \|___\| \| \n"
	133	" / /__\\ \\ \| \| \| \| \\/ \| \| \| \| \| \| \\_____ \\ \|___\| \| \| \\/ \| \| \| \\ \| ___ \| \n"
	134	" / ______ \\ \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|\\ \\ \| \| \| \| \n"
	135	" / / \\ \\ \| \|____ \| \| \| \| \| \\___/ \| _____/ \| \| \| \| \| \| \| \\ \\ \| \| \| \| \n"
	136	" /_/ \\_\\ \|______\| \|_\| \|_\| \\_____/ \|______/ \|_\| \|_\| \|_\| \\_\\ \|_\| \|_\| \n"
	137	"\n\n\t\t Advanced Locality Management Operating System / Multi Kernel Hybrid\n"
[127]	138	"\n\n\t\t\t Version 0.0 : %d clusters / %d cores per cluster\n\n", nclusters , ncores );
[5]	139	}
[1]	140
	141
[5]	142	///////////////////////////////////////////////////////////////////////////////////////////
[188]	143	// This function initializes the TXT0 chdev descriptor, that is the "kernel terminal",
	144	// shared by all kernel instances for debug messages.
	145	// It is a global variable (replicated in all clusters), because this terminal is used
	146	// before the kmem allocator initialisation, but only the instance in cluster containing
	147	// the calling core is registered in the "chdev_dir" directory.
[127]	148	// As this TXT0 chdev supports only the TXT_SYNC_WRITE command, we don't create
	149	// a server thread, we don't allocate a WTI, and we don't initialize the waiting queue.
[5]	150	///////////////////////////////////////////////////////////////////////////////////////////
	151	// @ info : pointer on the local boot-info structure.
	152	///////////////////////////////////////////////////////////////////////////////////////////
	153	static void txt0_device_init( boot_info_t * info )
	154	{
	155	boot_device_t * dev_tbl; // pointer on array of devices in boot_info
[127]	156	uint32_t dev_nr; // actual number of devices in this cluster
	157	xptr_t base; // remote pointer on segment base
	158	uint32_t func; // device functional index
[5]	159	uint32_t impl; // device implementation index
[127]	160	uint32_t i; // device index in dev_tbl
	161	uint32_t x; // X cluster coordinate
	162	uint32_t y; // Y cluster coordinate
[188]	163	uint32_t channels; // number of channels
[1]	164
[5]	165	// get number of peripherals and base of devices array from boot_info
[127]	166	dev_nr = info->ext_dev_nr;
[5]	167	dev_tbl = info->ext_dev;
[1]	168
[14]	169	// loop on external peripherals to find TXT device
[127]	170	for( i = 0 ; i < dev_nr ; i++ )
	171	{
[5]	172	base = dev_tbl[i].base;
[188]	173	func = FUNC_FROM_TYPE( dev_tbl[i].type );
	174	impl = IMPL_FROM_TYPE( dev_tbl[i].type );
	175	channels = dev_tbl[i].channels;
[5]	176
[127]	177	if (func == DEV_FUNC_TXT )
[5]	178	{
[188]	179	assert( (channels > 0) , __FUNCTION__ ,
	180	"numner of TXT channels cannot be 0\n");
[5]	181
[188]	182	// initializes TXT0 basic fields
	183	txt0_chdev.func = func;
	184	txt0_chdev.impl = impl;
	185	txt0_chdev.channel = 0;
	186	txt0_chdev.base = base;
	187	txt0_chdev.is_rx = false;
	188
	189	// initializes lock
[14]	190	remote_spinlock_init( XPTR( local_cxy , &txt0_chdev.wait_lock ) );
[188]	191
	192	// TXT specific initialisation:
	193	// no server thread & no IRQ routing for channel 0
	194	dev_txt_init( &txt0_chdev );
[14]	195
[188]	196	// register the TXT0 in all chdev_dir[x][y] structures
[5]	197	for( x = 0 ; x < info->x_size ; x++ )
	198	{
	199	for( y = 0 ; y < info->y_size ; y++ )
	200	{
	201	cxy_t cxy = (x<<info->y_width) + y;
[19]	202	hal_remote_swd( XPTR( cxy , &chdev_dir.txt[0] ) ,
[14]	203	XPTR( local_cxy , &txt0_chdev ) );
[5]	204	}
	205	}
	206
[188]	207	kinit_dmsg("\n[INFO] %s created TXT0 chdev in cluster %x at cycle %d\n",
	208	__FUNCTION__ , local_cxy , (uint32_t)hal_time_stamp() );
[5]	209	}
[188]	210	} // end loop on devices
	211	} // end txt0_device_init()
[5]	212
[1]	213	///////////////////////////////////////////////////////////////////////////////////////////
[188]	214	// This function allocates memory and initializes the chdev descriptors for the internal
	215	// peripherals contained in the local cluster, other than the LAPIC, as specified by
	216	// the boot_info, including the linking with the driver for the specified implementation.
	217	// The relevant entries in all copies of the devices directory are initialised.
[1]	218	///////////////////////////////////////////////////////////////////////////////////////////
	219	// @ info : pointer on the local boot-info structure.
	220	///////////////////////////////////////////////////////////////////////////////////////////
[5]	221	static void internal_devices_init( boot_info_t * info )
[1]	222	{
[188]	223	boot_device_t * dev_tbl; // pointer on array of internaldevices in boot_info
	224	uint32_t dev_nr; // actual number of devices in this cluster
	225	xptr_t base; // remote pointer on segment base
	226	uint32_t func; // device functionnal index
	227	uint32_t impl; // device implementation index
	228	uint32_t i; // device index in dev_tbl
	229	uint32_t x; // X cluster coordinate
	230	uint32_t y; // Y cluster coordinate
	231	uint32_t channels; // number of channels
	232	uint32_t channel; // channel index
	233	chdev_t * chdev_ptr; // local pointer on created chdev
[1]	234
[188]	235	// get number of internal peripherals and base from boot_info
	236	dev_nr = info->int_dev_nr;
	237	dev_tbl = info->int_dev;
[1]	238
[188]	239	// loop on internal peripherals
	240	for( i = 0 ; i < dev_nr ; i++ )
	241	{
	242	base = dev_tbl[i].base;
	243	channels = dev_tbl[i].channels;
	244	func = FUNC_FROM_TYPE( dev_tbl[i].type );
	245	impl = IMPL_FROM_TYPE( dev_tbl[i].type );
[204]	246
[188]	247	//////////////////////////
	248	if( func == DEV_FUNC_MMC )
[5]	249	{
[188]	250	assert( (channels == 1) , __FUNCTION__ ,
	251	"MMC device must be single channel\n" );
[1]	252
[188]	253	// create chdev in local cluster
	254	chdev_ptr = chdev_create( func,
	255	impl,
	256	0, // channel
	257	false, // direction
	258	base );
[14]	259
[188]	260	assert( (chdev_ptr != NULL) , __FUNCTION__ ,
	261	"cannot allocate memory for MMC chdev\n" );
	262
	263	// make MMC specific initialisation
	264	dev_mmc_init( chdev_ptr );
[1]	265
[188]	266	// set the MMC field in all chdev_dir[x][y] structures
	267	for( x = 0 ; x < info->x_size ; x++ )
[1]	268	{
[188]	269	for( y = 0 ; y < info->y_size ; y++ )
	270	{
	271	cxy_t cxy = (x<<info->y_width) + y;
	272	hal_remote_swd( XPTR( cxy , &chdev_dir.mmc[local_cxy] ),
	273	XPTR( local_cxy , chdev_ptr ) );
	274	}
[1]	275	}
[188]	276
	277	if( local_cxy == 0 )
	278	kinit_dmsg("\n[INFO] %s created MMC chdev in cluster 0 at cycle %d\n",
	279	__FUNCTION__ , local_cxy , (uint32_t)hal_time_stamp() );
[14]	280	}
[188]	281	///////////////////////////////
	282	else if( func == DEV_FUNC_DMA )
[127]	283	{
[188]	284	// create one chdev per channel in local cluster
	285	for( channel = 0 ; channel < channels ; channel++ )
	286	{
	287	// create chdev[channel] in local cluster
	288	chdev_ptr = chdev_create( func,
	289	impl,
	290	channel,
	291	false, // direction
	292	base );
[5]	293
[188]	294	assert( (chdev_ptr != NULL) , __FUNCTION__ ,
	295	"cannot allocate memory for DMA chdev" );
	296
	297	// make DMA specific initialisation
	298	dev_dma_init( chdev_ptr );
[127]	299
[188]	300	// initialize only the DMA[channel] field in the local chdev_dir[x][y]
	301	// structure because the DMA device is not remotely accessible.
	302	chdev_dir.dma[channel] = XPTR( local_cxy , chdev_ptr );
[5]	303
[188]	304	kinit_dmsg("\n[INFO] %s created DMA[%d] chdev in cluster 0 at cycle %d\n",
	305	__FUNCTION__ , channel , (uint32_t)hal_time_stamp() );
	306	}
[14]	307	}
[127]	308	}
[5]	309	} // end internal_devices_init()
	310
	311	///////////////////////////////////////////////////////////////////////////////////////////
[188]	312	// This function allocates memory and initializes the chdev descriptors for the
	313	// external (shared) peripherals other than the IOPIC, as specified by the boot_info,
[5]	314	// including the dynamic linking with the driver for the specified implementation.
[188]	315	// These chdev descriptors are distributed on all clusters, using a modulo on a global
	316	// index, identically computed in all clusters: In each cluster, the local CP0 core
	317	// computes the global index for all external chdevs, and creates only the chdevs that
	318	// must be placed in the local cluster.
	319	// The relevant entries in all copies of the devices directory are initialised.
[5]	320	///////////////////////////////////////////////////////////////////////////////////////////
	321	// @ info : pointer on the local boot-info structure.
	322	///////////////////////////////////////////////////////////////////////////////////////////
	323	static void external_devices_init( boot_info_t * info )
	324	{
[188]	325	boot_device_t * dev_tbl; // pointer on array of external devices in boot_info
	326	uint32_t dev_nr; // actual number of external devices
	327	xptr_t base; // remote pointer on segment base
[5]	328	uint32_t func; // device functionnal index
	329	uint32_t impl; // device implementation index
[188]	330	uint32_t i; // device index in dev_tbl
	331	uint32_t x; // X cluster coordinate
	332	uint32_t y; // Y cluster coordinate
	333	uint32_t channels; // number of channels
	334	uint32_t channel; // channel index
	335	uint32_t directions; // number of directions (1 or 2)
	336	uint32_t rx; // direction index (0 or 1)
	337	uint32_t first_channel; // used in loop on channels for TXT
[127]	338	chdev_t * chdev; // local pointer on one channel_device descriptor
[188]	339	uint32_t ext_chdev_gid; // global index of external chdev
[5]	340
	341	// get number of peripherals and base of devices array from boot_info
[127]	342	dev_nr = info->ext_dev_nr;
[5]	343	dev_tbl = info->ext_dev;
	344
[188]	345	// initializes global index (PIC is already placed in cluster 0
	346	ext_chdev_gid = 1;
	347
[5]	348	// loop on external peripherals
[127]	349	for( i = 0 ; i < dev_nr ; i++ )
	350	{
[188]	351	base = dev_tbl[i].base;
	352	channels = dev_tbl[i].channels;
	353	func = FUNC_FROM_TYPE( dev_tbl[i].type );
	354	impl = IMPL_FROM_TYPE( dev_tbl[i].type );
[5]	355
	356	// There is one chdev per direction for NIC
[188]	357	if (func == DEV_FUNC_NIC) directions = 2;
	358	else directions = 1;
[5]	359
	360	// The TXT0 chdev has already been created
	361	if (func == DEV_FUNC_TXT) first_channel = 1;
	362	else first_channel = 0;
	363
[188]	364	// do nothing for RO, that does not require a device descriptor.
[5]	365	if( func == DEV_FUNC_ROM ) continue;
	366
[188]	367	// do nothing for PIC, that is already initialized
	368	if( func == DEV_FUNC_PIC ) continue;
[5]	369
[188]	370	// check PIC device initialized
	371	assert( (chdev_dir.pic != XPTR_NULL ) , __FUNCTION__ ,
	372	"PIC device must be initialized before other devices\n" );
	373
	374	// check external device functionnal type
	375	assert( ( (func == DEV_FUNC_IOB) \|\|
	376	(func == DEV_FUNC_IOC) \|\|
	377	(func == DEV_FUNC_TXT) \|\|
	378	(func == DEV_FUNC_NIC) \|\|
	379	(func == DEV_FUNC_FBF) ) , __FUNCTION__ ,
	380	"undefined external peripheral type\n" );
	381
[127]	382	// loops on channels
[188]	383	for( channel = first_channel ; channel < channels ; channel++ )
[127]	384	{
[5]	385	// loop on directions
[188]	386	for( rx = 0 ; rx < directions ; rx++ )
[1]	387	{
[188]	388	// compute target cluster for chdev[func,channel,direction]
	389	uint32_t offset = ext_chdev_gid % ( info->x_size * info->y_size );
[5]	390	uint32_t cx = offset / info->y_size;
	391	uint32_t cy = offset % info->y_size;
	392	uint32_t target_cxy = (cx<<info->y_width) + cy;
[1]	393
[5]	394	// allocate and initialize a local chdev
	395	// if local cluster matches target cluster
	396	if( target_cxy == local_cxy )
[1]	397	{
[5]	398	chdev = chdev_create( func,
	399	impl,
	400	channel,
[188]	401	rx, // direction
[5]	402	base );
	403
[127]	404	assert( (chdev != NULL), __FUNCTION__ ,
[5]	405	"cannot allocate external device" );
	406
	407	// make device type specific initialisation
	408	if ( func == DEV_FUNC_IOB ) dev_iob_init( chdev );
	409	else if( func == DEV_FUNC_IOC ) dev_ioc_init( chdev );
	410	else if( func == DEV_FUNC_TXT ) dev_txt_init( chdev );
	411	else if( func == DEV_FUNC_NIC ) dev_nic_init( chdev );
[188]	412	else if( func == DEV_FUNC_FBF ) dev_fbf_init( chdev );
[5]	413
[127]	414	// all external (shared) devices are remotely accessible
[5]	415	// initialize the replicated chdev_dir[x][y] structures
[127]	416	// defining the extended pointers on chdev descriptors
	417	xptr_t * entry;
	418
[188]	419	if(func==DEV_FUNC_IOB ) entry = &chdev_dir.iob;
	420	if(func==DEV_FUNC_IOC ) entry = &chdev_dir.ioc[channel];
	421	if(func==DEV_FUNC_TXT ) entry = &chdev_dir.txt[channel];
	422	if(func==DEV_FUNC_FBF ) entry = &chdev_dir.fbf[channel];
	423	if((func==DEV_FUNC_NIC) && (rx==0)) entry = &chdev_dir.nic_tx[channel];
	424	if((func==DEV_FUNC_NIC) && (rx==1)) entry = &chdev_dir.nic_rx[channel];
[127]	425
[1]	426	for( x = 0 ; x < info->x_size ; x++ )
	427	{
	428	for( y = 0 ; y < info->y_size ; y++ )
	429	{
	430	cxy_t cxy = (x<<info->y_width) + y;
[188]	431	hal_remote_swd( XPTR( cxy , entry ),
	432	XPTR( local_cxy , chdev ) );
[5]	433	}
[1]	434	}
	435
[188]	436	kinit_dmsg("\n[INFO] %s create chdev %s[%d] in cluster %x at cycle %d\n",
	437	__FUNCTION__ , chdev_func_str( func ), channel,
	438	local_cxy , (uint32_t)hal_time_stamp() );
[5]	439
	440	} // end if match
	441
[19]	442	// increment chdev global index (matching or not)
[188]	443	ext_chdev_gid++;
[5]	444
	445	} // end loop on directions
	446	} // end loop on channels
[188]	447	} // end loop on devices
	448	} // end external_devices_init()
[5]	449
[188]	450	///////////////////////////////////////////////////////////////////////////////////////////
	451	// This function is called by CP0 in cluster 0 to allocate memory and initialize the PIC
	452	// device, namely the informations attached to the external IOPIC controller.
	453	// This initialisation must be done before other devices initialisation because the IRQ
	454	// routing infrastructure is required for internal and external devices initialisation.
	455	///////////////////////////////////////////////////////////////////////////////////////////
	456	// @ info : pointer on the local boot-info structure.
	457	///////////////////////////////////////////////////////////////////////////////////////////
	458	static void iopic_init( boot_info_t * info )
	459	{
	460	boot_device_t * dev_tbl; // pointer on boot_info external devices array
	461	uint32_t dev_nr; // actual number of external devices
	462	xptr_t base; // remote pointer on segment base
	463	uint32_t func; // device functionnal index
	464	uint32_t impl; // device implementation index
	465	uint32_t i; // device index in dev_tbl
	466	uint32_t x; // cluster X coordinate
	467	uint32_t y; // cluster Y coordinate
	468	bool_t found; // IOPIC found
	469	chdev_t * chdev; // pointer on PIC chdev descriptor
	470
	471	// get number of external peripherals and base of array from boot_info
	472	dev_nr = info->ext_dev_nr;
	473	dev_tbl = info->ext_dev;
	474
	475	// loop on external peripherals to get the IOPIC
	476	for( i = 0 , found = false ; i < dev_nr ; i++ )
	477	{
	478	func = FUNC_FROM_TYPE( dev_tbl[i].type );
	479
[127]	480	if( func == DEV_FUNC_PIC )
[1]	481	{
[188]	482	base = dev_tbl[i].base;
	483	impl = IMPL_FROM_TYPE( dev_tbl[i].type );
	484	found = true;
	485	break;
	486	}
	487	}
[5]	488
[188]	489	assert( found , __FUNCTION__ , "PIC device not found\n" );
[1]	490
[188]	491	// allocate and initialize the PIC chdev in local cluster
	492	chdev = chdev_create( func,
	493	impl,
	494	0, // channel
	495	0, // direction,
	496	base );
[5]	497
[188]	498	assert( (chdev != NULL), __FUNCTION__ , "no memory for PIC chdev\n" );
[5]	499
[188]	500	// make PIC device type specific initialisation
	501	dev_pic_init( chdev );
[1]	502
[188]	503	// register extended pointer on PIC chdev in "chdev_dir" array in all clusters
	504	xptr_t * entry = &chdev_dir.pic;
	505
	506	for( x = 0 ; x < info->x_size ; x++ )
	507	{
	508	for( y = 0 ; y < info->y_size ; y++ )
	509	{
	510	cxy_t cxy = (x<<info->y_width) + y;
	511	hal_remote_swd( XPTR( cxy , entry ) ,
	512	XPTR( local_cxy , chdev ) );
	513	}
	514	}
[1]	515
[188]	516	// initialize the "iopic_input" structure
	517	// defining how external IRQs are connected to IOPIC
	518	uint32_t id;
	519	uint8_t valid;
	520	uint32_t type;
	521	uint8_t channel;
	522	uint8_t is_rx;
	523
	524	for( id = 0 ; id < CONFIG_MAX_EXTERNAL_IRQS ; id++ )
	525	{
	526	valid = dev_tbl[i].irq[id].valid;
	527	type = dev_tbl[i].irq[id].dev_type;
	528	channel = dev_tbl[i].irq[id].channel;
	529	is_rx = dev_tbl[i].irq[id].is_rx;
	530
	531	if( valid ) // only valid inputs are registered
	532	{
	533	uint32_t * index; // local pointer on one entry
	534	uint16_t func = FUNC_FROM_TYPE( type );
	535
	536	if ( func == DEV_FUNC_TXT )
	537	index = &iopic_input.txt[channel];
	538	else if( func == DEV_FUNC_IOC )
	539	index = &iopic_input.ioc[channel];
	540	else if( (func == DEV_FUNC_NIC) && (is_rx == 0) )
	541	index = &iopic_input.nic_tx[channel];
	542	else if( (func == DEV_FUNC_NIC) && (is_rx != 0) )
	543	index = &iopic_input.nic_rx[channel];
	544	else if( func == DEV_FUNC_IOB )
	545	index = &iopic_input.iob;
	546	else
	547	assert( false , __FUNCTION__ , "illegal source device for IOPIC input" );
	548
	549	// set entry in local structure
	550	*index = id;
	551	}
	552	}
	553
[204]	554	kinit_dmsg("\n[INFO] %s created PIC chdev in cluster %x at cycle %d\n",
[188]	555	__FUNCTION__ , local_cxy , (uint32_t)hal_time_stamp() );
	556
	557	} // end iopic_init()
	558
[1]	559	///////////////////////////////////////////////////////////////////////////////////////////
[188]	560	// This function is called by all CP0s in all cluster to complete the PIC device
	561	// initialisation, namely the informations attached to the LAPIC controller.
	562	// This initialisation must be done after the IOPIC initialisation, but before other
	563	// devices initialisation because the IRQ routing infrastructure is required for both
	564	// internal and external devices initialisation.
	565	///////////////////////////////////////////////////////////////////////////////////////////
	566	// @ info : pointer on the local boot-info structure.
	567	///////////////////////////////////////////////////////////////////////////////////////////
	568	static void lapic_init( boot_info_t * info )
	569	{
	570	boot_device_t * dev_tbl; // pointer on boot_info internal devices array
	571	uint32_t dev_nr; // number of internal devices
	572	uint32_t i; // device index in dev_tbl
	573	xptr_t base; // remote pointer on segment base
	574	uint32_t func; // device functionnal type in boot_info
	575	bool_t found; // LAPIC found
	576
	577	// get number of internal peripherals and base
	578	dev_nr = info->int_dev_nr;
	579	dev_tbl = info->int_dev;
	580
	581	// loop on internal peripherals to get the lapic device
	582	for( i = 0 , found = false ; i < dev_nr ; i++ )
	583	{
	584	func = FUNC_FROM_TYPE( dev_tbl[i].type );
	585
	586	if( func == DEV_FUNC_ICU )
	587	{
	588	base = dev_tbl[i].base;
	589	found = true;
	590	break;
	591	}
	592	}
	593
	594	// if the LAPIC controller is not defined in the boot_info,
	595	// we simply don't initialize the PIC extensions in the kernel,
	596	// making the assumption that the LAPIC related informations
	597	// are hidden in the hardware specific PIC driver.
	598	if( found )
	599	{
	600	// initialise the PIC extensions for
	601	// the core descriptor and core manager extensions
	602	dev_pic_extend_init( (uint32_t *)GET_PTR( base ) );
	603
	604	// initialize the "lapic_input" structure
	605	// defining how internal IRQs are connected to LAPIC
	606	uint32_t id;
	607	uint8_t valid;
	608	uint8_t channel;
	609	uint32_t func;
	610
	611	for( id = 0 ; id < CONFIG_MAX_INTERNAL_IRQS ; id++ )
	612	{
	613	valid = dev_tbl[i].irq[id].valid;
	614	func = FUNC_FROM_TYPE( dev_tbl[i].irq[id].dev_type );
	615	channel = dev_tbl[i].irq[id].channel;
	616
	617	if( valid ) // only valid local IRQs are registered
	618	{
	619	if ( func == DEV_FUNC_MMC ) lapic_input.mmc = id;
	620	else if( func == DEV_FUNC_DMA ) lapic_input.dma[channel] = id;
	621	else assert( false , __FUNCTION__ , "illegal source device for LAPIC input" );
	622	}
	623	}
	624	}
	625	} // end lapic_init()
	626
	627	///////////////////////////////////////////////////////////////////////////////////////////
[14]	628	// This static function returns the identifiers of the calling core.
	629	///////////////////////////////////////////////////////////////////////////////////////////
	630	// @ info : pointer on boot_info structure.
	631	// @ lid : [out] core local index in cluster.
	632	// @ cxy : [out] cluster identifier.
	633	// @ lid : [out] core global identifier (hardware).
	634	// @ return 0 if success / return EINVAL if not found.
	635	///////////////////////////////////////////////////////////////////////////////////////////
[23]	636	static error_t get_core_identifiers( boot_info_t * info,
	637	lid_t * lid,
[14]	638	cxy_t * cxy,
	639	gid_t * gid )
	640	{
[127]	641	uint32_t i;
[14]	642	gid_t global_id;
[19]	643
[14]	644	// get global identifier from hardware register
[127]	645	global_id = hal_get_gid();
[14]	646
	647	// makes an associative search in boot_info to get (cxy,lid) from global_id
	648	for( i = 0 ; i < info->cores_nr ; i++ )
	649	{
	650	if( global_id == info->core[i].gid )
	651	{
	652	*lid = info->core[i].lid;
	653	*cxy = info->core[i].cxy;
	654	*gid = global_id;
	655	return 0;
	656	}
	657	}
	658	return EINVAL;
[19]	659	}
[14]	660
	661	///////////////////////////////////////////////////////////////////////////////////////////
[1]	662	// This function is the entry point for the kernel initialisation.
[19]	663	// It is executed by all cores in all clusters, but only core[0], called CP0,
[14]	664	// initializes the shared resources such as the cluster manager, or the local peripherals.
[19]	665	// To comply with the multi-kernels paradigm, it accesses only local cluster memory, using
	666	// only information contained in the local boot_info_t structure, set by the bootloader.
[103]	667	// Only CP0 in cluster 0 print the log messages.
[1]	668	///////////////////////////////////////////////////////////////////////////////////////////
	669	// @ info : pointer on the local boot-info structure.
	670	///////////////////////////////////////////////////////////////////////////////////////////
	671	void kernel_init( boot_info_t * info )
	672	{
[204]	673	lid_t core_lid = -1; // running core local index
	674	cxy_t core_cxy = -1; // running core cluster identifier
	675	gid_t core_gid; // running core hardware identifier
	676	cluster_t * cluster; // pointer on local cluster manager
	677	core_t * core; // pointer on running core descriptor
	678	thread_t * thread; // pointer on idle thread descriptor
	679
	680	xptr_t vfs_root_inode_xp; // extended pointer on VFS root inode
	681	xptr_t devfs_dev_inode_xp; // extended pointer on DEVFS dev inode
	682	xptr_t devfs_external_inode_xp; // extended pointer on DEVFS external inode
	683	xptr_t devfs_internal_inode_xp; // extended pointer on DEVFS internal inode
	684
[1]	685	error_t error;
	686
[188]	687	cxy_t io_cxy = info->io_cxy;
	688
	689	/////////////////////////////////////////////////////////////////////////////////
	690	// STEP 0 : Each core get its core identifier from boot_info, and makes
	691	// a partial initialisation of its private idle thread descriptor.
	692	// CP0 initializes the "local_cxy" global variable.
	693	// CP0 in cluster IO initializes the TXT0 chdev to print log messages.
	694	/////////////////////////////////////////////////////////////////////////////////
	695
[23]	696	error = get_core_identifiers( info,
[14]	697	&core_lid,
	698	&core_cxy,
	699	&core_gid );
[1]	700
[127]	701	// CP0 initializes cluster identifier
[14]	702	if( core_lid == 0 ) local_cxy = info->cxy;
[1]	703
[127]	704	// each core gets a pointer on its private idle thread descriptor
	705	thread = (thread_t )( idle_threads + (core_lid CONFIG_THREAD_DESC_SIZE) );
[68]	706
[127]	707	// each core registers this thread pointer in hardware register
[68]	708	hal_set_current_thread( thread );
[71]	709
[188]	710	// each core initializes the idle thread "locks_root" and "xlocks_root" fields
[124]	711	list_root_init( &thread->locks_root );
[188]	712	xlist_root_init( XPTR( local_cxy , &thread->xlocks_root ) );
[124]	713
[188]	714	// CP0 in I/O cluster initialises TXT0 chdev descriptor
	715	if( (core_lid == 0) && (core_cxy == io_cxy) ) txt0_device_init( info );
[14]	716
	717	/////////////////////////////////////////////////////////////////////////////////
[188]	718	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
[14]	719	(info->x_size * info->y_size) );
	720	barrier_wait( &local_barrier , info->cores_nr );
	721
[188]	722	if( (core_lid == 0) && (local_cxy == 0) )
	723	kinit_dmsg("\n[INFO] %s exit barrier 0 at cycle %d : TXT0 initialized\n",
	724	__FUNCTION__, (uint32_t)hal_time_stamp());
[14]	725
[188]	726	/////////////////////////////////////////////////////////////////////////////
	727	// STEP 1 : all cores check its core identifier.
	728	// CP0 initializes the local cluster manager.
	729	// This includes the memory allocators.
	730	/////////////////////////////////////////////////////////////////////////////
	731
	732	// all cores check identifiers
[14]	733	if( error )
[1]	734	{
[103]	735	nolock_printk("\n[PANIC] in %s : illegal core identifiers"
[14]	736	" gid = %x / cxy = %x / lid = %d\n",
	737	__FUNCTION__ , core_lid , core_cxy , core_lid );
	738	hal_core_sleep();
[1]	739	}
	740
[188]	741	// CP0 initializes cluster manager
[14]	742	if( core_lid == 0 )
[1]	743	{
	744	error = cluster_init( info );
	745
[14]	746	if( error )
	747	{
[188]	748	nolock_printk("\n[PANIC] in %s : cannot initialise cluster %x",
[14]	749	__FUNCTION__ , local_cxy );
	750	hal_core_sleep();
	751	}
	752	}
[5]	753
[14]	754	/////////////////////////////////////////////////////////////////////////////////
[188]	755	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
[14]	756	(info->x_size * info->y_size) );
	757	barrier_wait( &local_barrier , info->cores_nr );
	758	/////////////////////////////////////////////////////////////////////////////////
[1]	759
[188]	760	if( (core_lid == 0) && (local_cxy == 0) )
	761	kinit_dmsg("\n[INFO] %s exit barrier 1 at cycle %d : clusters initialised\n",
	762	__FUNCTION__, (uint32_t)hal_time_stamp());
[1]	763
[188]	764	/////////////////////////////////////////////////////////////////////////////////
	765	// STEP 2 : all CP0s initialize the process_zero descriptor.
	766	// CP0 in cluster 0 initialises the IOPIC device.
	767	// all CP0s complete the distibuted LAPIC initialization.
	768	/////////////////////////////////////////////////////////////////////////////////
	769
	770	// all cores get pointer on local cluster manager & core descriptor
[14]	771	cluster = &cluster_manager;
[127]	772	core = &cluster->core_tbl[core_lid];
[1]	773
[188]	774	// all CP0s initialize the process_zero descriptor
[101]	775	if( core_lid == 0 ) process_reference_init( &process_zero , 0 , XPTR_NULL );
[5]	776
[188]	777	// CP0 in cluster 0 initializes the PIC chdev,
	778	if( (core_lid == 0) && (local_cxy == 0) ) iopic_init( info );
	779
	780	// all CP0s initialize their local LAPIC extension,
	781	if( core_lid == 0 ) lapic_init( info );
[124]	782
[188]	783	////////////////////////////////////////////////////////////////////////////////
	784	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
	785	(info->x_size * info->y_size) );
	786	barrier_wait( &local_barrier , info->cores_nr );
	787	////////////////////////////////////////////////////////////////////////////////
[127]	788
[188]	789	if( (core_lid == 0) && (local_cxy == 0) )
	790	kinit_dmsg("\n[INFO] %s exit barrier 2 at cycle %d : PIC initialised\n",
	791	__FUNCTION__, (uint32_t)hal_time_stamp());
[1]	792
[188]	793	////////////////////////////////////////////////////////////////////////////////
	794	// STEP 3 : all CP0s initialize their local chdev descriptors
	795	// (both internal devices and external devices).
	796	////////////////////////////////////////////////////////////////////////////////
[5]	797
[188]	798	// CP0 scan the internal (private) peripherals,
	799	// and allocates memory for the corresponding chdev descriptors.
	800	if( core_lid == 0 ) internal_devices_init( info );
	801
[1]	802
[50]	803	// All CP0s contribute to initialise external peripheral chdev descriptors.
[14]	804	// Each CP0[cxy] scan the set of external (shared) peripherals (but the TXT0),
	805	// and allocates memory for the chdev descriptors that must be placed
[127]	806	// on the (cxy) cluster according to the global index value.
[188]	807
[14]	808	if( core_lid == 0 ) external_devices_init( info );
[1]	809
[14]	810	/////////////////////////////////////////////////////////////////////////////////
[188]	811	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
[14]	812	(info->x_size * info->y_size) );
	813	barrier_wait( &local_barrier , info->cores_nr );
	814	/////////////////////////////////////////////////////////////////////////////////
[5]	815
[188]	816	if( (core_lid == 0) && (local_cxy == 0) )
	817	kinit_dmsg("\n[INFO] %s exit barrier 3 at cycle %d : all chdev initialised\n",
	818	__FUNCTION__, (uint32_t)hal_time_stamp());
[1]	819
[188]	820	/////////////////////////////////////////////////////////////////////////////////
	821	// STEP 4 : Alls cores initialize their private IDLE thread.
	822	// Only CP0 in cluster 0 creates the VFS root inode.
	823	// It access the boot device to initialize the file system context.
	824	/////////////////////////////////////////////////////////////////////////////////
	825
	826	// all cores create idle thread descriptor
[14]	827	error = thread_kernel_init( thread,
[127]	828	THREAD_IDLE,
	829	&thread_idle_func,
[14]	830	NULL,
	831	core_lid );
	832	if( error )
[1]	833	{
[103]	834	nolock_printk("\n[PANIC] in %s : core[%x][%d] cannot initialize idle thread\n",
	835	__FUNCTION__ , local_cxy , core_lid );
[14]	836	hal_core_sleep();
[1]	837	}
	838
[188]	839	// all cores register idle thread in scheduler
[103]	840	core->scheduler.idle = thread;
[1]	841
[188]	842	// all core activate the idle thread
[103]	843	thread_unblock( XPTR( local_cxy , thread ) , THREAD_BLOCKED_GLOBAL );
	844
[188]	845	if( (core_lid == 0) && (local_cxy == 0) )
[103]	846	{
[188]	847	kinit_dmsg("\n[INFO] %s : created idle thread %x at cycle %d\n",
	848	__FUNCTION__ , thread , (uint32_t)hal_time_stamp());
[14]	849	}
	850
[188]	851	// CPO in cluster 0 creates the VFS root
	852	if( (core_lid == 0) && (local_cxy == 0 ) )
[14]	853	{
[188]	854	vfs_root_inode_xp = XPTR_NULL;
[23]	855
[188]	856	// File System must be FATFS in this implementation,
	857	// but other File System can be introduced here
[23]	858	if( CONFIG_VFS_ROOT_IS_FATFS )
	859	{
[188]	860	// 1. create FATFS context in cluster 0
	861	fatfs_ctx_t * fatfs_ctx = fatfs_ctx_alloc();
	862
[246]	863	printk("\n@@@ %s extend = %x\n", __FUNCTION__ , fatfs_ctx );
	864
[188]	865	nolock_assert( (fatfs_ctx != NULL) , __FUNCTION__ ,
	866	"cannot create FATFS context in cluster 0\n" );
	867
	868	// 2. access boot device to initialize FATFS context
	869	fatfs_ctx_init( fatfs_ctx );
	870
	871	// 3. get various informations from FATFS context
	872	uint32_t root_dir_cluster = fatfs_ctx->root_dir_cluster;
	873	uint32_t cluster_size = fatfs_ctx->bytes_per_sector *
	874	fatfs_ctx->sectors_per_cluster;
	875	uint32_t total_clusters = fatfs_ctx->fat_sectors_count << 7;
	876
	877	// 4. create VFS root inode in cluster 0
	878	error = vfs_inode_create( XPTR_NULL, // dentry_xp
	879	FS_TYPE_FATFS, // fs_type
	880	INODE_TYPE_DIR, // inode_type
	881	(void *)(intptr_t)root_dir_cluster, // extend
	882	0, // attr
	883	0, // rights
	884	0, // uid
	885	0, // gid
	886	&vfs_root_inode_xp ); // return
	887
	888	nolock_assert( (error == 0) , __FUNCTION__ ,
	889	"cannot create VFS root inode\n" );
	890
	891	// 5. initialize VFS context for FAT in cluster 0
	892	vfs_ctx_init( FS_TYPE_FATFS, // file system type
	893	0, // attributes
	894	total_clusters,
	895	cluster_size,
	896	vfs_root_inode_xp, // VFS root
	897	fatfs_ctx ); // extend
[23]	898	}
	899	else
	900	{
[103]	901	nolock_printk("\n[PANIC] in %s : root FS must be FATFS\n", __FUNCTION__ );
[23]	902	hal_core_sleep();
	903	}
	904
[246]	905	///////////////////////////////@@@
	906	fatfs_ctx_display();
	907	///////////////////////////////@@@
	908
[188]	909	// register VFS root inode in process_zero
	910	process_zero.vfs_root_xp = vfs_root_inode_xp;
	911	process_zero.vfs_cwd_xp = vfs_root_inode_xp;
	912	}
	913
	914	/////////////////////////////////////////////////////////////////////////////////
	915	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
	916	(info->x_size * info->y_size) );
	917	barrier_wait( &local_barrier , info->cores_nr );
	918	/////////////////////////////////////////////////////////////////////////////////
	919
	920	if( (core_lid == 0) && (local_cxy == 0) )
	921	kinit_dmsg("\n[INFO] %s exit barrier 4 at cycle %d : VFS OK in cluster 0\n",
	922	__FUNCTION__, (uint32_t)hal_time_stamp());
	923
	924	/////////////////////////////////////////////////////////////////////////////////
	925	// STEP 5 : Other CP0s allocate memory for the selected FS context,
	926	// and initialise both the local FS context and the local VFS context
	927	// from values stored in cluster 0.
	928	// They get the VFS root inode extended pointer from cluster 0.
	929	/////////////////////////////////////////////////////////////////////////////////
	930
	931	if( (core_lid == 0) && (local_cxy != 0) )
	932	{
	933	// File System must be FATFS in this implementation,
	934	// but other File System can be introduced here
	935	if( CONFIG_VFS_ROOT_IS_FATFS )
[23]	936	{
[188]	937	// allocate memory for FATFS context
	938	fatfs_ctx_t * fatfs_ctx = fatfs_ctx_alloc();
	939
	940	nolock_assert( (fatfs_ctx != NULL) , __FUNCTION__ ,
	941	"cannot create FATFS context\n" );
	942
	943	// get local pointer on VFS context for FATFS
	944	vfs_ctx_t * vfs_ctx = &fs_context[FS_TYPE_FATFS];
	945
	946	// copy VFS context from cluster 0 to local cluster
	947	hal_remote_memcpy( XPTR( local_cxy , vfs_ctx ),
	948	XPTR( 0 , vfs_ctx ),
	949	sizeof(vfs_ctx_t) );
	950
	951	// copy FATFS context from cluster 0 to local cluster
	952	hal_remote_memcpy( XPTR( local_cxy , fatfs_ctx ),
	953	XPTR( 0 , fatfs_ctx ),
	954	sizeof(fatfs_ctx_t) );
	955
	956	// update extend field in local copy of VFS context
	957	vfs_ctx->extend = fatfs_ctx;
[23]	958	}
	959
[188]	960	// get extended pointer on VFS root inode from cluster 0
	961	vfs_root_inode_xp = hal_remote_lwd( XPTR( 0 , process_zero.vfs_root_xp ) );
[101]	962
[188]	963	// update local process_zero descriptor
	964	process_zero.vfs_root_xp = vfs_root_inode_xp;
	965	process_zero.vfs_cwd_xp = vfs_root_inode_xp;
[14]	966	}
	967
[188]	968	/////////////////////////////////////////////////////////////////////////////////
	969	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
	970	(info->x_size * info->y_size) );
	971	barrier_wait( &local_barrier , info->cores_nr );
[204]	972	/////////////////////////////////////////////////////////////////////////////////
[101]	973
[188]	974	if( (core_lid == 0) && (local_cxy == 0) )
	975	kinit_dmsg("\n[INFO] %s exit barrier 5 at cycle %d : VFS OK in all clusters\n",
	976	__FUNCTION__, (uint32_t)hal_time_stamp());
	977
	978
	979	/////////////////////////////////////////////////////////////////////////////////
	980	// STEP 6 : CP0 in cluster IO makes the global DEVFS tree initialisation:
[204]	981	// It creates the DEVFS directory "dev", and the DEVFS "external"
	982	// directory in cluster IO and mount these inodes into VFS.
[188]	983	/////////////////////////////////////////////////////////////////////////////////
	984
	985	if( (core_lid == 0) && (local_cxy == io_cxy) )
[1]	986	{
[188]	987	// create "dev" and "external" directories.
	988	devfs_global_init( process_zero.vfs_root_xp,
[204]	989	&devfs_dev_inode_xp,
[188]	990	&devfs_external_inode_xp );
	991
	992	// creates the DEVFS context in cluster IO
	993	devfs_ctx_t * devfs_ctx = devfs_ctx_alloc();
	994
	995	nolock_assert( (devfs_ctx != NULL) , __FUNCTION__ ,
	996	"cannot create DEVFS context in cluster IO\n");
	997
	998	// register DEVFS root and external directories
[204]	999	devfs_ctx_init( devfs_ctx, devfs_dev_inode_xp, devfs_external_inode_xp );
[188]	1000	}
	1001
	1002	/////////////////////////////////////////////////////////////////////////////////
	1003	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
	1004	(info->x_size * info->y_size) );
	1005	barrier_wait( &local_barrier , info->cores_nr );
[204]	1006	/////////////////////////////////////////////////////////////////////////////////
[188]	1007
	1008	if( (core_lid == 0) && (local_cxy == 0) )
	1009	kinit_dmsg("\n[INFO] %s exit barrier 6 at cycle %d : DEVFS OK in cluster IO\n",
	1010	__FUNCTION__, (uint32_t)hal_time_stamp());
	1011
	1012	/////////////////////////////////////////////////////////////////////////////////
	1013	// STEP 7 : All CP0s complete in parallel the DEVFS tree initialization.
	1014	// Each CP0 get the "dev" and "external" extended pointers from
[204]	1015	// values stored in cluster IO.
	1016	// Then CP0 in cluster(i) creates the DEVFS "internal directory,
	1017	// and creates the pseudo-files for all chdevs in cluster (i).
[188]	1018	/////////////////////////////////////////////////////////////////////////////////
	1019
	1020	if( core_lid == 0 )
	1021	{
	1022	// get extended pointer on "extend" field of VFS context for DEVFS in cluster IO
	1023	xptr_t extend_xp = XPTR( io_cxy , &fs_context[FS_TYPE_DEVFS].extend );
	1024
	1025	// get pointer on DEVFS context in cluster IO
	1026	devfs_ctx_t * devfs_ctx = hal_remote_lpt( extend_xp );
	1027
[204]	1028	devfs_dev_inode_xp = hal_remote_lwd( XPTR( io_cxy ,
	1029	&devfs_ctx->dev_inode_xp ) );
	1030	devfs_external_inode_xp = hal_remote_lwd( XPTR( io_cxy ,
	1031	&devfs_ctx->external_inode_xp ) );
[188]	1032
[204]	1033	// populate DEVFS in all clusters
	1034	devfs_local_init( devfs_dev_inode_xp,
	1035	devfs_external_inode_xp,
	1036	&devfs_internal_inode_xp );
[188]	1037	}
	1038
	1039	/////////////////////////////////////////////////////////////////////////////////
	1040	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
	1041	(info->x_size * info->y_size) );
	1042	barrier_wait( &local_barrier , info->cores_nr );
[204]	1043	/////////////////////////////////////////////////////////////////////////////////
[188]	1044
	1045	if( (core_lid == 0) && (local_cxy == 0) )
	1046	kinit_dmsg("\n[INFO] %s exit barrier 7 at cycle %d : DEVFS OK in all clusters\n",
	1047	__FUNCTION__, (uint32_t)hal_time_stamp());
	1048
[204]	1049	#if CONFIG_KINIT_DEBUG
	1050	vfs_display( vfs_root_inode_xp );
	1051	#endif
	1052
[188]	1053	/////////////////////////////////////////////////////////////////////////////////
[204]	1054	// STEP 8 : CP0 in I/O cluster creates the first user process (process_init)
[188]	1055	/////////////////////////////////////////////////////////////////////////////////
	1056
	1057	if( (core_lid == 0) && (local_cxy == io_cxy) )
	1058	{
[101]	1059	process_init_create();
[188]	1060	}
[101]	1061
[188]	1062	/////////////////////////////////////////////////////////////////////////////////
	1063	if( core_lid == 0 ) remote_barrier( XPTR( info->io_cxy , &global_barrier ),
	1064	(info->x_size * info->y_size) );
	1065	barrier_wait( &local_barrier , info->cores_nr );
[204]	1066	/////////////////////////////////////////////////////////////////////////////////
[188]	1067
	1068	if( (core_lid == 0) && (local_cxy == 0) )
	1069	kinit_dmsg("\n[INFO] %s exit barrier 8 at cycle %d : process init created\n",
	1070	__FUNCTION__ , (uint32_t)hal_time_stamp() );
	1071
	1072	/////////////////////////////////////////////////////////////////////////////////
	1073	// STEP 9 : CP0 in cluster 0 print banner
	1074	/////////////////////////////////////////////////////////////////////////////////
	1075
	1076	if( (core_lid == 0) && (local_cxy == io_cxy) )
	1077	{
[5]	1078	print_banner( (info->x_size * info->y_size) , info->cores_nr );
[68]	1079
	1080	kinit_dmsg("\n\n* memory fooprint of main kernet objects *\n"
	1081	" - thread descriptor : %d bytes\n"
	1082	" - process descriptor : %d bytes\n"
	1083	" - cluster manager : %d bytes\n"
	1084	" - chdev descriptor : %d bytes\n"
	1085	" - core descriptor : %d bytes\n"
	1086	" - scheduler : %d bytes\n"
	1087	" - rpc fifo : %d bytes\n"
	1088	" - page descriptor : %d bytes\n"
	1089	" - mapper root : %d bytes\n"
	1090	" - ppm manager : %d bytes\n"
	1091	" - kcm manager : %d bytes\n"
	1092	" - khm manager : %d bytes\n"
	1093	" - vmm manager : %d bytes\n"
	1094	" - gpt root : %d bytes\n"
	1095	" - list item : %d bytes\n"
	1096	" - xlist item : %d bytes\n"
	1097	" - spinlock : %d bytes\n"
	1098	" - remote spinlock : %d bytes\n"
	1099	" - rwlock : %d bytes\n"
	1100	" - remote rwlock : %d bytes\n",
[127]	1101	sizeof( thread_t ),
[68]	1102	sizeof( process_t ),
	1103	sizeof( cluster_t ),
	1104	sizeof( chdev_t ),
	1105	sizeof( core_t ),
	1106	sizeof( scheduler_t ),
	1107	sizeof( rpc_fifo_t ),
	1108	sizeof( page_t ),
	1109	sizeof( mapper_t ),
	1110	sizeof( ppm_t ),
	1111	sizeof( kcm_t ),
	1112	sizeof( khm_t ),
	1113	sizeof( vmm_t ),
	1114	sizeof( gpt_t ),
	1115	sizeof( list_entry_t ),
	1116	sizeof( xlist_entry_t ),
	1117	sizeof( spinlock_t ),
	1118	sizeof( remote_spinlock_t ),
	1119	sizeof( rwlock_t ),
	1120	sizeof( remote_rwlock_t ));
[1]	1121	}
	1122
[127]	1123	// each core activates its private PTI IRQ
[188]	1124	dev_pic_enable_timer( CONFIG_SCHED_TICK_PERIOD );
[14]	1125
[188]	1126	if( (core_lid == 0) && (local_cxy == io_cxy) )
	1127	thread_dmsg("\n[INFO] %s complete kernel init in cluster 0 at cycle %d\n"
	1128	__FUNCTION__ , (uint32_t)hal_time_stamp() )
[14]	1129
	1130	// each core jump to idle thread
[50]	1131	thread_idle_func();
[127]	1132	}
[14]	1133

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