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kernel_init.c @ 220

Last change on this file since 220 was 204, checked in by alain, 7 years ago

Bug fix in kernel_init
-This line, and those below, will be ignored--

M params.mk
M kernel_config.h
M Makefile
M hdd/virt_hdd.dmg
M tools/bootloader_tsar/boot.c
M kernel/libk/bits.h
M kernel/libk/elf.c
M kernel/libk/xhtab.c
M kernel/libk/elf.h
M kernel/libk/xhtab.h
M kernel/devices/dev_pic.c
M kernel/mm/vmm.c
M kernel/mm/mapper.c
M kernel/mm/mapper.h
M kernel/vfs/devfs.h
M kernel/vfs/vfs.c
M kernel/vfs/vfs.h
M kernel/vfs/devfs.c
M kernel/kern/chdev.h
M kernel/kern/kernel_init.c
M kernel/kern/process.c
M kernel/kern/process.h
M hal/tsar_mips32/core/hal_remote.c
M hal/tsar_mips32/drivers/soclib_pic.c

File size: 50.4 KB

Rev	Line
[1]	1	/*
	2	* kernel_init.c - kernel parallel initialization
[127]	3	*
[23]	4	* Authors : Mohamed Lamine Karaoui (2015)
	5	* Alain Greiner (2016,2017)
[1]	6	*
	7	* Copyright (c) Sorbonne Universites
	8	*
	9	* This file is part of ALMOS-MKH.
	10	*
	11	* ALMOS-MKH is free software; you can redistribute it and/or modify it
	12	* under the terms of the GNU General Public License as published by
	13	* the Free Software Foundation; version 2.0 of the License.
	14	*
	15	* ALMOS-MKH is distributed in the hope that it will be useful, but
	16	* WITHOUT ANY WARRANTY; without even the implied warranty of
	17	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	18	* General Public License for more details.
	19	*
	20	* You should have received a copy of the GNU General Public License
	21	* along with ALMOS-MKH; if not, write to the Free Software Foundation,
	22	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	23	*/
	24
[14]	25	#include <kernel_config.h>
[1]	26	#include <errno.h>
	27	#include <hal_types.h>
	28	#include <hal_special.h>
	29	#include <hal_context.h>
[14]	30	#include <barrier.h>
[1]	31	#include <remote_barrier.h>
	32	#include <core.h>
	33	#include <list.h>
[68]	34	#include <xlist.h>
[204]	35	#include <xhtab.h>
[1]	36	#include <thread.h>
	37	#include <scheduler.h>
	38	#include <kmem.h>
	39	#include <cluster.h>
	40	#include <string.h>
	41	#include <memcpy.h>
	42	#include <ppm.h>
	43	#include <page.h>
[5]	44	#include <chdev.h>
[1]	45	#include <boot_info.h>
	46	#include <dqdt.h>
	47	#include <dev_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>
[77]	56	#include <hal_drivers.h>
[23]	57	#include <devfs.h>
[68]	58	#include <mapper.h>
[101]	59	#include <soclib_tty.h>
[1]	60
[5]	61	#define KERNEL_INIT_SYNCHRO 0xA5A5B5B5
[1]	62
	63	///////////////////////////////////////////////////////////////////////////////////////////
	64	// All these global variables are replicated in all clusters.
	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")))
	81	char idle_threads[CONFIG_THREAD_DESC_SIZE *
	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
[188]	88	// This variable defines the TXT0 kernel terminal
	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")))
[188]	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
[1]	125	///////////////////////////////////////////////////////////////////////////////////////////
[5]	126	// This function displays the ALMOS_MKH banner.
[1]	127	///////////////////////////////////////////////////////////////////////////////////////////
[5]	128	static void print_banner( uint32_t nclusters , uint32_t ncores )
[127]	129	{
[5]	130	printk("\n"
	131	" _ __ __ _____ ______ __ __ _ __ _ _ \n"
	132	" /\\ \| \| \| \\ / \| / ___ \\ / _____\| \| \\ / \| \| \| / / \| \| \| \| \n"
	133	" / \\ \| \| \| \\/ \| \| / \\ \| \| / \| \\/ \| \| \|/ / \| \| \| \| \n"
	134	" / /\\ \\ \| \| \| \|\\ /\| \| \| \| \| \| \| \|_____ ___ \| \|\\ /\| \| \| / \| \|___\| \| \n"
	135	" / /__\\ \\ \| \| \| \| \\/ \| \| \| \| \| \| \\_____ \\ \|___\| \| \| \\/ \| \| \| \\ \| ___ \| \n"
	136	" / ______ \\ \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|\\ \\ \| \| \| \| \n"
	137	" / / \\ \\ \| \|____ \| \| \| \| \| \\___/ \| _____/ \| \| \| \| \| \| \| \\ \\ \| \| \| \| \n"
	138	" /_/ \\_\\ \|______\| \|_\| \|_\| \\_____/ \|______/ \|_\| \|_\| \|_\| \\_\\ \|_\| \|_\| \n"
	139	"\n\n\t\t Advanced Locality Management Operating System / Multi Kernel Hybrid\n"
[127]	140	"\n\n\t\t\t Version 0.0 : %d clusters / %d cores per cluster\n\n", nclusters , ncores );
[5]	141	}
[1]	142
	143
[5]	144	///////////////////////////////////////////////////////////////////////////////////////////
[188]	145	// This function initializes the TXT0 chdev descriptor, that is the "kernel terminal",
	146	// shared by all kernel instances for debug messages.
	147	// It is a global variable (replicated in all clusters), because this terminal is used
	148	// before the kmem allocator initialisation, but only the instance in cluster containing
	149	// the calling core is registered in the "chdev_dir" directory.
[127]	150	// As this TXT0 chdev supports only the TXT_SYNC_WRITE command, we don't create
	151	// a server thread, we don't allocate a WTI, and we don't initialize the waiting queue.
[5]	152	///////////////////////////////////////////////////////////////////////////////////////////
	153	// @ info : pointer on the local boot-info structure.
	154	///////////////////////////////////////////////////////////////////////////////////////////
	155	static void txt0_device_init( boot_info_t * info )
	156	{
	157	boot_device_t * dev_tbl; // pointer on array of devices in boot_info
[127]	158	uint32_t dev_nr; // actual number of devices in this cluster
	159	xptr_t base; // remote pointer on segment base
	160	uint32_t func; // device functional index
[5]	161	uint32_t impl; // device implementation index
[127]	162	uint32_t i; // device index in dev_tbl
	163	uint32_t x; // X cluster coordinate
	164	uint32_t y; // Y cluster coordinate
[188]	165	uint32_t channels; // number of channels
[1]	166
[5]	167	// get number of peripherals and base of devices array from boot_info
[127]	168	dev_nr = info->ext_dev_nr;
[5]	169	dev_tbl = info->ext_dev;
[1]	170
[14]	171	// loop on external peripherals to find TXT device
[127]	172	for( i = 0 ; i < dev_nr ; i++ )
	173	{
[5]	174	base = dev_tbl[i].base;
[188]	175	func = FUNC_FROM_TYPE( dev_tbl[i].type );
	176	impl = IMPL_FROM_TYPE( dev_tbl[i].type );
	177	channels = dev_tbl[i].channels;
[5]	178
[127]	179	if (func == DEV_FUNC_TXT )
[5]	180	{
[188]	181	assert( (channels > 0) , __FUNCTION__ ,
	182	"numner of TXT channels cannot be 0\n");
[5]	183
[188]	184	// initializes TXT0 basic fields
	185	txt0_chdev.func = func;
	186	txt0_chdev.impl = impl;
	187	txt0_chdev.channel = 0;
	188	txt0_chdev.base = base;
	189	txt0_chdev.is_rx = false;
	190
	191	// initializes lock
[14]	192	remote_spinlock_init( XPTR( local_cxy , &txt0_chdev.wait_lock ) );
[188]	193
	194	// TXT specific initialisation:
	195	// no server thread & no IRQ routing for channel 0
	196	dev_txt_init( &txt0_chdev );
[14]	197
[188]	198	// register the TXT0 in all chdev_dir[x][y] structures
[5]	199	for( x = 0 ; x < info->x_size ; x++ )
	200	{
	201	for( y = 0 ; y < info->y_size ; y++ )
	202	{
	203	cxy_t cxy = (x<<info->y_width) + y;
[19]	204	hal_remote_swd( XPTR( cxy , &chdev_dir.txt[0] ) ,
[14]	205	XPTR( local_cxy , &txt0_chdev ) );
[5]	206	}
	207	}
	208
[188]	209	kinit_dmsg("\n[INFO] %s created TXT0 chdev in cluster %x at cycle %d\n",
	210	__FUNCTION__ , local_cxy , (uint32_t)hal_time_stamp() );
[5]	211	}
[188]	212	} // end loop on devices
	213	} // end txt0_device_init()
[5]	214
[1]	215	///////////////////////////////////////////////////////////////////////////////////////////
[188]	216	// This function allocates memory and initializes the chdev descriptors for the internal
	217	// peripherals contained in the local cluster, other than the LAPIC, as specified by
	218	// the boot_info, including the linking with the driver for the specified implementation.
	219	// The relevant entries in all copies of the devices directory are initialised.
[1]	220	///////////////////////////////////////////////////////////////////////////////////////////
	221	// @ info : pointer on the local boot-info structure.
	222	///////////////////////////////////////////////////////////////////////////////////////////
[5]	223	static void internal_devices_init( boot_info_t * info )
[1]	224	{
[188]	225	boot_device_t * dev_tbl; // pointer on array of internaldevices in boot_info
	226	uint32_t dev_nr; // actual number of devices in this cluster
	227	xptr_t base; // remote pointer on segment base
	228	uint32_t func; // device functionnal index
	229	uint32_t impl; // device implementation index
	230	uint32_t i; // device index in dev_tbl
	231	uint32_t x; // X cluster coordinate
	232	uint32_t y; // Y cluster coordinate
	233	uint32_t channels; // number of channels
	234	uint32_t channel; // channel index
	235	chdev_t * chdev_ptr; // local pointer on created chdev
[1]	236
[188]	237	// get number of internal peripherals and base from boot_info
	238	dev_nr = info->int_dev_nr;
	239	dev_tbl = info->int_dev;
[1]	240
[188]	241	// loop on internal peripherals
	242	for( i = 0 ; i < dev_nr ; i++ )
	243	{
	244	base = dev_tbl[i].base;
	245	channels = dev_tbl[i].channels;
	246	func = FUNC_FROM_TYPE( dev_tbl[i].type );
	247	impl = IMPL_FROM_TYPE( dev_tbl[i].type );
[204]	248
[188]	249	//////////////////////////
	250	if( func == DEV_FUNC_MMC )
[5]	251	{
[188]	252	assert( (channels == 1) , __FUNCTION__ ,
	253	"MMC device must be single channel\n" );
[1]	254
[188]	255	// create chdev in local cluster
	256	chdev_ptr = chdev_create( func,
	257	impl,
	258	0, // channel
	259	false, // direction
	260	base );
[14]	261
[188]	262	assert( (chdev_ptr != NULL) , __FUNCTION__ ,
	263	"cannot allocate memory for MMC chdev\n" );
	264
	265	// make MMC specific initialisation
	266	dev_mmc_init( chdev_ptr );
[1]	267
[188]	268	// set the MMC field in all chdev_dir[x][y] structures
	269	for( x = 0 ; x < info->x_size ; x++ )
[1]	270	{
[188]	271	for( y = 0 ; y < info->y_size ; y++ )
	272	{
	273	cxy_t cxy = (x<<info->y_width) + y;
	274	hal_remote_swd( XPTR( cxy , &chdev_dir.mmc[local_cxy] ),
	275	XPTR( local_cxy , chdev_ptr ) );
	276	}
[1]	277	}
[188]	278
	279	if( local_cxy == 0 )
	280	kinit_dmsg("\n[INFO] %s created MMC chdev in cluster 0 at cycle %d\n",
	281	__FUNCTION__ , local_cxy , (uint32_t)hal_time_stamp() );
[14]	282	}
[188]	283	///////////////////////////////
	284	else if( func == DEV_FUNC_DMA )
[127]	285	{
[188]	286	// create one chdev per channel in local cluster
	287	for( channel = 0 ; channel < channels ; channel++ )
	288	{
	289	// create chdev[channel] in local cluster
	290	chdev_ptr = chdev_create( func,
	291	impl,
	292	channel,
	293	false, // direction
	294	base );
[5]	295
[188]	296	assert( (chdev_ptr != NULL) , __FUNCTION__ ,
	297	"cannot allocate memory for DMA chdev" );
	298
	299	// make DMA specific initialisation
	300	dev_dma_init( chdev_ptr );
[127]	301
[188]	302	// initialize only the DMA[channel] field in the local chdev_dir[x][y]
	303	// structure because the DMA device is not remotely accessible.
	304	chdev_dir.dma[channel] = XPTR( local_cxy , chdev_ptr );
[5]	305
[188]	306	kinit_dmsg("\n[INFO] %s created DMA[%d] chdev in cluster 0 at cycle %d\n",
	307	__FUNCTION__ , channel , (uint32_t)hal_time_stamp() );
	308	}
[14]	309	}
[127]	310	}
[5]	311	} // end internal_devices_init()
	312
	313	///////////////////////////////////////////////////////////////////////////////////////////
[188]	314	// This function allocates memory and initializes the chdev descriptors for the
	315	// external (shared) peripherals other than the IOPIC, as specified by the boot_info,
[5]	316	// including the dynamic linking with the driver for the specified implementation.
[188]	317	// These chdev descriptors are distributed on all clusters, using a modulo on a global
	318	// index, identically computed in all clusters: In each cluster, the local CP0 core
	319	// computes the global index for all external chdevs, and creates only the chdevs that
	320	// must be placed in the local cluster.
	321	// The relevant entries in all copies of the devices directory are initialised.
[5]	322	///////////////////////////////////////////////////////////////////////////////////////////
	323	// @ info : pointer on the local boot-info structure.
	324	///////////////////////////////////////////////////////////////////////////////////////////
	325	static void external_devices_init( boot_info_t * info )
	326	{
[188]	327	boot_device_t * dev_tbl; // pointer on array of external devices in boot_info
	328	uint32_t dev_nr; // actual number of external devices
	329	xptr_t base; // remote pointer on segment base
[5]	330	uint32_t func; // device functionnal index
	331	uint32_t impl; // device implementation index
[188]	332	uint32_t i; // device index in dev_tbl
	333	uint32_t x; // X cluster coordinate
	334	uint32_t y; // Y cluster coordinate
	335	uint32_t channels; // number of channels
	336	uint32_t channel; // channel index
	337	uint32_t directions; // number of directions (1 or 2)
	338	uint32_t rx; // direction index (0 or 1)
	339	uint32_t first_channel; // used in loop on channels for TXT
[127]	340	chdev_t * chdev; // local pointer on one channel_device descriptor
[188]	341	uint32_t ext_chdev_gid; // global index of external chdev
[5]	342
	343	// get number of peripherals and base of devices array from boot_info
[127]	344	dev_nr = info->ext_dev_nr;
[5]	345	dev_tbl = info->ext_dev;
	346
[188]	347	// initializes global index (PIC is already placed in cluster 0
	348	ext_chdev_gid = 1;
	349
[5]	350	// loop on external peripherals
[127]	351	for( i = 0 ; i < dev_nr ; i++ )
	352	{
[188]	353	base = dev_tbl[i].base;
	354	channels = dev_tbl[i].channels;
	355	func = FUNC_FROM_TYPE( dev_tbl[i].type );
	356	impl = IMPL_FROM_TYPE( dev_tbl[i].type );
[5]	357
	358	// There is one chdev per direction for NIC
[188]	359	if (func == DEV_FUNC_NIC) directions = 2;
	360	else directions = 1;
[5]	361
	362	// The TXT0 chdev has already been created
	363	if (func == DEV_FUNC_TXT) first_channel = 1;
	364	else first_channel = 0;
	365
[188]	366	// do nothing for RO, that does not require a device descriptor.
[5]	367	if( func == DEV_FUNC_ROM ) continue;
	368
[188]	369	// do nothing for PIC, that is already initialized
	370	if( func == DEV_FUNC_PIC ) continue;
[5]	371
[188]	372	// check PIC device initialized
	373	assert( (chdev_dir.pic != XPTR_NULL ) , __FUNCTION__ ,
	374	"PIC device must be initialized before other devices\n" );
	375
	376	// check external device functionnal type
	377	assert( ( (func == DEV_FUNC_IOB) \|\|
	378	(func == DEV_FUNC_IOC) \|\|
	379	(func == DEV_FUNC_TXT) \|\|
	380	(func == DEV_FUNC_NIC) \|\|
	381	(func == DEV_FUNC_FBF) ) , __FUNCTION__ ,
	382	"undefined external peripheral type\n" );
	383
[127]	384	// loops on channels
[188]	385	for( channel = first_channel ; channel < channels ; channel++ )
[127]	386	{
[5]	387	// loop on directions
[188]	388	for( rx = 0 ; rx < directions ; rx++ )
[1]	389	{
[188]	390	// compute target cluster for chdev[func,channel,direction]
	391	uint32_t offset = ext_chdev_gid % ( info->x_size * info->y_size );
[5]	392	uint32_t cx = offset / info->y_size;
	393	uint32_t cy = offset % info->y_size;
	394	uint32_t target_cxy = (cx<<info->y_width) + cy;
[1]	395
[5]	396	// allocate and initialize a local chdev
	397	// if local cluster matches target cluster
	398	if( target_cxy == local_cxy )
[1]	399	{
[5]	400	chdev = chdev_create( func,
	401	impl,
	402	channel,
[188]	403	rx, // direction
[5]	404	base );
	405
[127]	406	assert( (chdev != NULL), __FUNCTION__ ,
[5]	407	"cannot allocate external device" );
	408
	409	// make device type specific initialisation
	410	if ( func == DEV_FUNC_IOB ) dev_iob_init( chdev );
	411	else if( func == DEV_FUNC_IOC ) dev_ioc_init( chdev );
	412	else if( func == DEV_FUNC_TXT ) dev_txt_init( chdev );
	413	else if( func == DEV_FUNC_NIC ) dev_nic_init( chdev );
[188]	414	else if( func == DEV_FUNC_FBF ) dev_fbf_init( chdev );
[5]	415
[127]	416	// all external (shared) devices are remotely accessible
[5]	417	// initialize the replicated chdev_dir[x][y] structures
[127]	418	// defining the extended pointers on chdev descriptors
	419	xptr_t * entry;
	420
[188]	421	if(func==DEV_FUNC_IOB ) entry = &chdev_dir.iob;
	422	if(func==DEV_FUNC_IOC ) entry = &chdev_dir.ioc[channel];
	423	if(func==DEV_FUNC_TXT ) entry = &chdev_dir.txt[channel];
	424	if(func==DEV_FUNC_FBF ) entry = &chdev_dir.fbf[channel];
	425	if((func==DEV_FUNC_NIC) && (rx==0)) entry = &chdev_dir.nic_tx[channel];
	426	if((func==DEV_FUNC_NIC) && (rx==1)) entry = &chdev_dir.nic_rx[channel];
[127]	427
[1]	428	for( x = 0 ; x < info->x_size ; x++ )
	429	{
	430	for( y = 0 ; y < info->y_size ; y++ )
	431	{
	432	cxy_t cxy = (x<<info->y_width) + y;
[188]	433	hal_remote_swd( XPTR( cxy , entry ),
	434	XPTR( local_cxy , chdev ) );
[5]	435	}
[1]	436	}
	437
[188]	438	kinit_dmsg("\n[INFO] %s create chdev %s[%d] in cluster %x at cycle %d\n",
	439	__FUNCTION__ , chdev_func_str( func ), channel,
	440	local_cxy , (uint32_t)hal_time_stamp() );
[5]	441
	442	} // end if match
	443
[19]	444	// increment chdev global index (matching or not)
[188]	445	ext_chdev_gid++;
[5]	446
	447	} // end loop on directions
	448	} // end loop on channels
[188]	449	} // end loop on devices
	450	} // end external_devices_init()
[5]	451
[188]	452	///////////////////////////////////////////////////////////////////////////////////////////
	453	// This function is called by CP0 in cluster 0 to allocate memory and initialize the PIC
	454	// device, namely the informations attached to the external IOPIC controller.
	455	// This initialisation must be done before other devices initialisation because the IRQ
	456	// routing infrastructure is required for internal and external devices initialisation.
	457	///////////////////////////////////////////////////////////////////////////////////////////
	458	// @ info : pointer on the local boot-info structure.
	459	///////////////////////////////////////////////////////////////////////////////////////////
	460	static void iopic_init( boot_info_t * info )
	461	{
	462	boot_device_t * dev_tbl; // pointer on boot_info external devices array
	463	uint32_t dev_nr; // actual number of external devices
	464	xptr_t base; // remote pointer on segment base
	465	uint32_t func; // device functionnal index
	466	uint32_t impl; // device implementation index
	467	uint32_t i; // device index in dev_tbl
	468	uint32_t x; // cluster X coordinate
	469	uint32_t y; // cluster Y coordinate
	470	bool_t found; // IOPIC found
	471	chdev_t * chdev; // pointer on PIC chdev descriptor
	472
	473	// get number of external peripherals and base of array from boot_info
	474	dev_nr = info->ext_dev_nr;
	475	dev_tbl = info->ext_dev;
	476
	477	// loop on external peripherals to get the IOPIC
	478	for( i = 0 , found = false ; i < dev_nr ; i++ )
	479	{
	480	func = FUNC_FROM_TYPE( dev_tbl[i].type );
	481
[127]	482	if( func == DEV_FUNC_PIC )
[1]	483	{
[188]	484	base = dev_tbl[i].base;
	485	impl = IMPL_FROM_TYPE( dev_tbl[i].type );
	486	found = true;
	487	break;
	488	}
	489	}
[5]	490
[188]	491	assert( found , __FUNCTION__ , "PIC device not found\n" );
[1]	492
[188]	493	// allocate and initialize the PIC chdev in local cluster
	494	chdev = chdev_create( func,
	495	impl,
	496	0, // channel
	497	0, // direction,
	498	base );
[5]	499
[188]	500	assert( (chdev != NULL), __FUNCTION__ , "no memory for PIC chdev\n" );
[5]	501
[188]	502	// make PIC device type specific initialisation
	503	dev_pic_init( chdev );
[1]	504
[188]	505	// register extended pointer on PIC chdev in "chdev_dir" array in all clusters
	506	xptr_t * entry = &chdev_dir.pic;
	507
	508	for( x = 0 ; x < info->x_size ; x++ )
	509	{
	510	for( y = 0 ; y < info->y_size ; y++ )
	511	{
	512	cxy_t cxy = (x<<info->y_width) + y;
	513	hal_remote_swd( XPTR( cxy , entry ) ,
	514	XPTR( local_cxy , chdev ) );
	515	}
	516	}
[1]	517
[188]	518	// initialize the "iopic_input" structure
	519	// defining how external IRQs are connected to IOPIC
	520	uint32_t id;
	521	uint8_t valid;
	522	uint32_t type;
	523	uint8_t channel;
	524	uint8_t is_rx;
	525
	526	for( id = 0 ; id < CONFIG_MAX_EXTERNAL_IRQS ; id++ )
	527	{
	528	valid = dev_tbl[i].irq[id].valid;
	529	type = dev_tbl[i].irq[id].dev_type;
	530	channel = dev_tbl[i].irq[id].channel;
	531	is_rx = dev_tbl[i].irq[id].is_rx;
	532
	533	if( valid ) // only valid inputs are registered
	534	{
	535	uint32_t * index; // local pointer on one entry
	536	uint16_t func = FUNC_FROM_TYPE( type );
	537
	538	if ( func == DEV_FUNC_TXT )
	539	index = &iopic_input.txt[channel];
	540	else if( func == DEV_FUNC_IOC )
	541	index = &iopic_input.ioc[channel];
	542	else if( (func == DEV_FUNC_NIC) && (is_rx == 0) )
	543	index = &iopic_input.nic_tx[channel];
	544	else if( (func == DEV_FUNC_NIC) && (is_rx != 0) )
	545	index = &iopic_input.nic_rx[channel];
	546	else if( func == DEV_FUNC_IOB )
	547	index = &iopic_input.iob;
	548	else
	549	assert( false , __FUNCTION__ , "illegal source device for IOPIC input" );
	550
	551	// set entry in local structure
	552	*index = id;
	553	}
	554	}
	555
[204]	556	kinit_dmsg("\n[INFO] %s created PIC chdev in cluster %x at cycle %d\n",
[188]	557	__FUNCTION__ , local_cxy , (uint32_t)hal_time_stamp() );
	558
	559	} // end iopic_init()
	560
[1]	561	///////////////////////////////////////////////////////////////////////////////////////////
[188]	562	// This function is called by all CP0s in all cluster to complete the PIC device
	563	// initialisation, namely the informations attached to the LAPIC controller.
	564	// This initialisation must be done after the IOPIC initialisation, but before other
	565	// devices initialisation because the IRQ routing infrastructure is required for both
	566	// internal and external devices initialisation.
	567	///////////////////////////////////////////////////////////////////////////////////////////
	568	// @ info : pointer on the local boot-info structure.
	569	///////////////////////////////////////////////////////////////////////////////////////////
	570	static void lapic_init( boot_info_t * info )
	571	{
	572	boot_device_t * dev_tbl; // pointer on boot_info internal devices array
	573	uint32_t dev_nr; // number of internal devices
	574	uint32_t i; // device index in dev_tbl
	575	xptr_t base; // remote pointer on segment base
	576	uint32_t func; // device functionnal type in boot_info
	577	bool_t found; // LAPIC found
	578
	579	// get number of internal peripherals and base
	580	dev_nr = info->int_dev_nr;
	581	dev_tbl = info->int_dev;
	582
	583	// loop on internal peripherals to get the lapic device
	584	for( i = 0 , found = false ; i < dev_nr ; i++ )
	585	{
	586	func = FUNC_FROM_TYPE( dev_tbl[i].type );
	587
	588	if( func == DEV_FUNC_ICU )
	589	{
	590	base = dev_tbl[i].base;
	591	found = true;
	592	break;
	593	}
	594	}
	595
	596	// if the LAPIC controller is not defined in the boot_info,
	597	// we simply don't initialize the PIC extensions in the kernel,
	598	// making the assumption that the LAPIC related informations
	599	// are hidden in the hardware specific PIC driver.
	600	if( found )
	601	{
	602	// initialise the PIC extensions for
	603	// the core descriptor and core manager extensions
	604	dev_pic_extend_init( (uint32_t *)GET_PTR( base ) );
	605
	606	// initialize the "lapic_input" structure
	607	// defining how internal IRQs are connected to LAPIC
	608	uint32_t id;
	609	uint8_t valid;
	610	uint8_t channel;
	611	uint32_t func;
	612
	613	for( id = 0 ; id < CONFIG_MAX_INTERNAL_IRQS ; id++ )
	614	{
	615	valid = dev_tbl[i].irq[id].valid;
	616	func = FUNC_FROM_TYPE( dev_tbl[i].irq[id].dev_type );
	617	channel = dev_tbl[i].irq[id].channel;
	618
	619	if( valid ) // only valid local IRQs are registered
	620	{
	621	if ( func == DEV_FUNC_MMC ) lapic_input.mmc = id;
	622	else if( func == DEV_FUNC_DMA ) lapic_input.dma[channel] = id;
	623	else assert( false , __FUNCTION__ , "illegal source device for LAPIC input" );
	624	}
	625	}
	626	}
	627	} // end lapic_init()
	628
	629	///////////////////////////////////////////////////////////////////////////////////////////
[14]	630	// This static function returns the identifiers of the calling core.
	631	///////////////////////////////////////////////////////////////////////////////////////////
	632	// @ info : pointer on boot_info structure.
	633	// @ lid : [out] core local index in cluster.
	634	// @ cxy : [out] cluster identifier.
	635	// @ lid : [out] core global identifier (hardware).
	636	// @ return 0 if success / return EINVAL if not found.
	637	///////////////////////////////////////////////////////////////////////////////////////////
[23]	638	static error_t get_core_identifiers( boot_info_t * info,
	639	lid_t * lid,
[14]	640	cxy_t * cxy,
	641	gid_t * gid )
	642	{
[127]	643	uint32_t i;
[14]	644	gid_t global_id;
[19]	645
[14]	646	// get global identifier from hardware register
[127]	647	global_id = hal_get_gid();
[14]	648
	649	// makes an associative search in boot_info to get (cxy,lid) from global_id
	650	for( i = 0 ; i < info->cores_nr ; i++ )
	651	{
	652	if( global_id == info->core[i].gid )
	653	{
	654	*lid = info->core[i].lid;
	655	*cxy = info->core[i].cxy;
	656	*gid = global_id;
	657	return 0;
	658	}
	659	}
	660	return EINVAL;
[19]	661	}
[14]	662
	663	///////////////////////////////////////////////////////////////////////////////////////////
[1]	664	// This function is the entry point for the kernel initialisation.
[19]	665	// It is executed by all cores in all clusters, but only core[0], called CP0,
[14]	666	// initializes the shared resources such as the cluster manager, or the local peripherals.
[19]	667	// To comply with the multi-kernels paradigm, it accesses only local cluster memory, using
	668	// only information contained in the local boot_info_t structure, set by the bootloader.
[103]	669	// Only CP0 in cluster 0 print the log messages.
[1]	670	///////////////////////////////////////////////////////////////////////////////////////////
	671	// @ info : pointer on the local boot-info structure.
	672	///////////////////////////////////////////////////////////////////////////////////////////
	673	void kernel_init( boot_info_t * info )
	674	{
[204]	675	lid_t core_lid = -1; // running core local index
	676	cxy_t core_cxy = -1; // running core cluster identifier
	677	gid_t core_gid; // running core hardware identifier
	678	cluster_t * cluster; // pointer on local cluster manager
	679	core_t * core; // pointer on running core descriptor
	680	thread_t * thread; // pointer on idle thread descriptor
	681
	682	xptr_t vfs_root_inode_xp; // extended pointer on VFS root inode
	683	xptr_t devfs_dev_inode_xp; // extended pointer on DEVFS dev inode
	684	xptr_t devfs_external_inode_xp; // extended pointer on DEVFS external inode
	685	xptr_t devfs_internal_inode_xp; // extended pointer on DEVFS internal inode
	686
[1]	687	error_t error;
	688
[188]	689	cxy_t io_cxy = info->io_cxy;
	690
	691	/////////////////////////////////////////////////////////////////////////////////
	692	// STEP 0 : Each core get its core identifier from boot_info, and makes
	693	// a partial initialisation of its private idle thread descriptor.
	694	// CP0 initializes the "local_cxy" global variable.
	695	// CP0 in cluster IO initializes the TXT0 chdev to print log messages.
	696	/////////////////////////////////////////////////////////////////////////////////
	697
[23]	698	error = get_core_identifiers( info,
[14]	699	&core_lid,
	700	&core_cxy,
	701	&core_gid );
[1]	702
[127]	703	// CP0 initializes cluster identifier
[14]	704	if( core_lid == 0 ) local_cxy = info->cxy;
[1]	705
[127]	706	// each core gets a pointer on its private idle thread descriptor
	707	thread = (thread_t )( idle_threads + (core_lid CONFIG_THREAD_DESC_SIZE) );
[68]	708
[127]	709	// each core registers this thread pointer in hardware register
[68]	710	hal_set_current_thread( thread );
[71]	711
[188]	712	// each core initializes the idle thread "locks_root" and "xlocks_root" fields
[124]	713	list_root_init( &thread->locks_root );
[188]	714	xlist_root_init( XPTR( local_cxy , &thread->xlocks_root ) );
[124]	715
[188]	716	// CP0 in I/O cluster initialises TXT0 chdev descriptor
	717	if( (core_lid == 0) && (core_cxy == io_cxy) ) txt0_device_init( info );
[14]	718
	719	/////////////////////////////////////////////////////////////////////////////////
[188]	720	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
[14]	721	(info->x_size * info->y_size) );
	722	barrier_wait( &local_barrier , info->cores_nr );
	723
[188]	724	if( (core_lid == 0) && (local_cxy == 0) )
	725	kinit_dmsg("\n[INFO] %s exit barrier 0 at cycle %d : TXT0 initialized\n",
	726	__FUNCTION__, (uint32_t)hal_time_stamp());
[14]	727
[188]	728	/////////////////////////////////////////////////////////////////////////////
	729	// STEP 1 : all cores check its core identifier.
	730	// CP0 initializes the local cluster manager.
	731	// This includes the memory allocators.
	732	/////////////////////////////////////////////////////////////////////////////
	733
	734	// all cores check identifiers
[14]	735	if( error )
[1]	736	{
[103]	737	nolock_printk("\n[PANIC] in %s : illegal core identifiers"
[14]	738	" gid = %x / cxy = %x / lid = %d\n",
	739	__FUNCTION__ , core_lid , core_cxy , core_lid );
	740	hal_core_sleep();
[1]	741	}
	742
[188]	743	// CP0 initializes cluster manager
[14]	744	if( core_lid == 0 )
[1]	745	{
	746	error = cluster_init( info );
	747
[14]	748	if( error )
	749	{
[188]	750	nolock_printk("\n[PANIC] in %s : cannot initialise cluster %x",
[14]	751	__FUNCTION__ , local_cxy );
	752	hal_core_sleep();
	753	}
	754	}
[5]	755
[14]	756	/////////////////////////////////////////////////////////////////////////////////
[188]	757	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
[14]	758	(info->x_size * info->y_size) );
	759	barrier_wait( &local_barrier , info->cores_nr );
	760	/////////////////////////////////////////////////////////////////////////////////
[1]	761
[188]	762	if( (core_lid == 0) && (local_cxy == 0) )
	763	kinit_dmsg("\n[INFO] %s exit barrier 1 at cycle %d : clusters initialised\n",
	764	__FUNCTION__, (uint32_t)hal_time_stamp());
[1]	765
[188]	766	/////////////////////////////////////////////////////////////////////////////////
	767	// STEP 2 : all CP0s initialize the process_zero descriptor.
	768	// CP0 in cluster 0 initialises the IOPIC device.
	769	// all CP0s complete the distibuted LAPIC initialization.
	770	/////////////////////////////////////////////////////////////////////////////////
	771
	772	// all cores get pointer on local cluster manager & core descriptor
[14]	773	cluster = &cluster_manager;
[127]	774	core = &cluster->core_tbl[core_lid];
[1]	775
[188]	776	// all CP0s initialize the process_zero descriptor
[101]	777	if( core_lid == 0 ) process_reference_init( &process_zero , 0 , XPTR_NULL );
[5]	778
[188]	779	// CP0 in cluster 0 initializes the PIC chdev,
	780	if( (core_lid == 0) && (local_cxy == 0) ) iopic_init( info );
	781
	782	// all CP0s initialize their local LAPIC extension,
	783	if( core_lid == 0 ) lapic_init( info );
[124]	784
[188]	785	////////////////////////////////////////////////////////////////////////////////
	786	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
	787	(info->x_size * info->y_size) );
	788	barrier_wait( &local_barrier , info->cores_nr );
	789	////////////////////////////////////////////////////////////////////////////////
[127]	790
[188]	791	if( (core_lid == 0) && (local_cxy == 0) )
	792	kinit_dmsg("\n[INFO] %s exit barrier 2 at cycle %d : PIC initialised\n",
	793	__FUNCTION__, (uint32_t)hal_time_stamp());
[1]	794
[188]	795	////////////////////////////////////////////////////////////////////////////////
	796	// STEP 3 : all CP0s initialize their local chdev descriptors
	797	// (both internal devices and external devices).
	798	////////////////////////////////////////////////////////////////////////////////
[5]	799
[188]	800	// CP0 scan the internal (private) peripherals,
	801	// and allocates memory for the corresponding chdev descriptors.
	802	if( core_lid == 0 ) internal_devices_init( info );
	803
[1]	804
[50]	805	// All CP0s contribute to initialise external peripheral chdev descriptors.
[14]	806	// Each CP0[cxy] scan the set of external (shared) peripherals (but the TXT0),
	807	// and allocates memory for the chdev descriptors that must be placed
[127]	808	// on the (cxy) cluster according to the global index value.
[188]	809
[14]	810	if( core_lid == 0 ) external_devices_init( info );
[1]	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	/////////////////////////////////////////////////////////////////////////////////
[5]	817
[188]	818	if( (core_lid == 0) && (local_cxy == 0) )
	819	kinit_dmsg("\n[INFO] %s exit barrier 3 at cycle %d : all chdev initialised\n",
	820	__FUNCTION__, (uint32_t)hal_time_stamp());
[1]	821
[188]	822	/////////////////////////////////////////////////////////////////////////////////
	823	// STEP 4 : Alls cores initialize their private IDLE thread.
	824	// Only CP0 in cluster 0 creates the VFS root inode.
	825	// It access the boot device to initialize the file system context.
	826	/////////////////////////////////////////////////////////////////////////////////
	827
	828	// all cores create idle thread descriptor
[14]	829	error = thread_kernel_init( thread,
[127]	830	THREAD_IDLE,
	831	&thread_idle_func,
[14]	832	NULL,
	833	core_lid );
	834	if( error )
[1]	835	{
[103]	836	nolock_printk("\n[PANIC] in %s : core[%x][%d] cannot initialize idle thread\n",
	837	__FUNCTION__ , local_cxy , core_lid );
[14]	838	hal_core_sleep();
[1]	839	}
	840
[188]	841	// all cores register idle thread in scheduler
[103]	842	core->scheduler.idle = thread;
[1]	843
[188]	844	// all core activate the idle thread
[103]	845	thread_unblock( XPTR( local_cxy , thread ) , THREAD_BLOCKED_GLOBAL );
	846
[188]	847	if( (core_lid == 0) && (local_cxy == 0) )
[103]	848	{
[188]	849	kinit_dmsg("\n[INFO] %s : created idle thread %x at cycle %d\n",
	850	__FUNCTION__ , thread , (uint32_t)hal_time_stamp());
[14]	851	}
	852
[188]	853	// CPO in cluster 0 creates the VFS root
	854	if( (core_lid == 0) && (local_cxy == 0 ) )
[14]	855	{
[188]	856	vfs_root_inode_xp = XPTR_NULL;
[23]	857
[188]	858	// File System must be FATFS in this implementation,
	859	// but other File System can be introduced here
[23]	860	if( CONFIG_VFS_ROOT_IS_FATFS )
	861	{
[188]	862	// 1. create FATFS context in cluster 0
	863	fatfs_ctx_t * fatfs_ctx = fatfs_ctx_alloc();
	864
	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
[188]	905	// register VFS root inode in process_zero
	906	process_zero.vfs_root_xp = vfs_root_inode_xp;
	907	process_zero.vfs_cwd_xp = vfs_root_inode_xp;
	908	}
	909
	910	/////////////////////////////////////////////////////////////////////////////////
	911	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
	912	(info->x_size * info->y_size) );
	913	barrier_wait( &local_barrier , info->cores_nr );
	914	/////////////////////////////////////////////////////////////////////////////////
	915
	916	if( (core_lid == 0) && (local_cxy == 0) )
	917	kinit_dmsg("\n[INFO] %s exit barrier 4 at cycle %d : VFS OK in cluster 0\n",
	918	__FUNCTION__, (uint32_t)hal_time_stamp());
	919
	920	/////////////////////////////////////////////////////////////////////////////////
	921	// STEP 5 : Other CP0s allocate memory for the selected FS context,
	922	// and initialise both the local FS context and the local VFS context
	923	// from values stored in cluster 0.
	924	// They get the VFS root inode extended pointer from cluster 0.
	925	/////////////////////////////////////////////////////////////////////////////////
	926
	927	if( (core_lid == 0) && (local_cxy != 0) )
	928	{
	929	// File System must be FATFS in this implementation,
	930	// but other File System can be introduced here
	931	if( CONFIG_VFS_ROOT_IS_FATFS )
[23]	932	{
[188]	933	// allocate memory for FATFS context
	934	fatfs_ctx_t * fatfs_ctx = fatfs_ctx_alloc();
	935
	936	nolock_assert( (fatfs_ctx != NULL) , __FUNCTION__ ,
	937	"cannot create FATFS context\n" );
	938
	939	// get local pointer on VFS context for FATFS
	940	vfs_ctx_t * vfs_ctx = &fs_context[FS_TYPE_FATFS];
	941
	942	// copy VFS context from cluster 0 to local cluster
	943	hal_remote_memcpy( XPTR( local_cxy , vfs_ctx ),
	944	XPTR( 0 , vfs_ctx ),
	945	sizeof(vfs_ctx_t) );
	946
	947	// copy FATFS context from cluster 0 to local cluster
	948	hal_remote_memcpy( XPTR( local_cxy , fatfs_ctx ),
	949	XPTR( 0 , fatfs_ctx ),
	950	sizeof(fatfs_ctx_t) );
	951
	952	// update extend field in local copy of VFS context
	953	vfs_ctx->extend = fatfs_ctx;
[23]	954	}
	955
[188]	956	// get extended pointer on VFS root inode from cluster 0
	957	vfs_root_inode_xp = hal_remote_lwd( XPTR( 0 , process_zero.vfs_root_xp ) );
[101]	958
[188]	959	// update local process_zero descriptor
	960	process_zero.vfs_root_xp = vfs_root_inode_xp;
	961	process_zero.vfs_cwd_xp = vfs_root_inode_xp;
[14]	962	}
	963
[188]	964	/////////////////////////////////////////////////////////////////////////////////
	965	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
	966	(info->x_size * info->y_size) );
	967	barrier_wait( &local_barrier , info->cores_nr );
[204]	968	/////////////////////////////////////////////////////////////////////////////////
[101]	969
[188]	970	if( (core_lid == 0) && (local_cxy == 0) )
	971	kinit_dmsg("\n[INFO] %s exit barrier 5 at cycle %d : VFS OK in all clusters\n",
	972	__FUNCTION__, (uint32_t)hal_time_stamp());
	973
	974
	975	/////////////////////////////////////////////////////////////////////////////////
	976	// STEP 6 : CP0 in cluster IO makes the global DEVFS tree initialisation:
[204]	977	// It creates the DEVFS directory "dev", and the DEVFS "external"
	978	// directory in cluster IO and mount these inodes into VFS.
[188]	979	/////////////////////////////////////////////////////////////////////////////////
	980
	981	if( (core_lid == 0) && (local_cxy == io_cxy) )
[1]	982	{
[188]	983	// create "dev" and "external" directories.
	984	devfs_global_init( process_zero.vfs_root_xp,
[204]	985	&devfs_dev_inode_xp,
[188]	986	&devfs_external_inode_xp );
	987
	988	// creates the DEVFS context in cluster IO
	989	devfs_ctx_t * devfs_ctx = devfs_ctx_alloc();
	990
	991	nolock_assert( (devfs_ctx != NULL) , __FUNCTION__ ,
	992	"cannot create DEVFS context in cluster IO\n");
	993
	994	// register DEVFS root and external directories
[204]	995	devfs_ctx_init( devfs_ctx, devfs_dev_inode_xp, devfs_external_inode_xp );
[188]	996	}
	997
	998	/////////////////////////////////////////////////////////////////////////////////
	999	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
	1000	(info->x_size * info->y_size) );
	1001	barrier_wait( &local_barrier , info->cores_nr );
[204]	1002	/////////////////////////////////////////////////////////////////////////////////
[188]	1003
	1004	if( (core_lid == 0) && (local_cxy == 0) )
	1005	kinit_dmsg("\n[INFO] %s exit barrier 6 at cycle %d : DEVFS OK in cluster IO\n",
	1006	__FUNCTION__, (uint32_t)hal_time_stamp());
	1007
	1008	/////////////////////////////////////////////////////////////////////////////////
	1009	// STEP 7 : All CP0s complete in parallel the DEVFS tree initialization.
	1010	// Each CP0 get the "dev" and "external" extended pointers from
[204]	1011	// values stored in cluster IO.
	1012	// Then CP0 in cluster(i) creates the DEVFS "internal directory,
	1013	// and creates the pseudo-files for all chdevs in cluster (i).
[188]	1014	/////////////////////////////////////////////////////////////////////////////////
	1015
	1016	if( core_lid == 0 )
	1017	{
	1018	// get extended pointer on "extend" field of VFS context for DEVFS in cluster IO
	1019	xptr_t extend_xp = XPTR( io_cxy , &fs_context[FS_TYPE_DEVFS].extend );
	1020
	1021	// get pointer on DEVFS context in cluster IO
	1022	devfs_ctx_t * devfs_ctx = hal_remote_lpt( extend_xp );
	1023
[204]	1024	devfs_dev_inode_xp = hal_remote_lwd( XPTR( io_cxy ,
	1025	&devfs_ctx->dev_inode_xp ) );
	1026	devfs_external_inode_xp = hal_remote_lwd( XPTR( io_cxy ,
	1027	&devfs_ctx->external_inode_xp ) );
[188]	1028
[204]	1029	// populate DEVFS in all clusters
	1030	devfs_local_init( devfs_dev_inode_xp,
	1031	devfs_external_inode_xp,
	1032	&devfs_internal_inode_xp );
[188]	1033	}
	1034
	1035	/////////////////////////////////////////////////////////////////////////////////
	1036	if( core_lid == 0 ) remote_barrier( XPTR( io_cxy , &global_barrier ),
	1037	(info->x_size * info->y_size) );
	1038	barrier_wait( &local_barrier , info->cores_nr );
[204]	1039	/////////////////////////////////////////////////////////////////////////////////
[188]	1040
	1041	if( (core_lid == 0) && (local_cxy == 0) )
	1042	kinit_dmsg("\n[INFO] %s exit barrier 7 at cycle %d : DEVFS OK in all clusters\n",
	1043	__FUNCTION__, (uint32_t)hal_time_stamp());
	1044
[204]	1045	#if CONFIG_KINIT_DEBUG
	1046	vfs_display( vfs_root_inode_xp );
	1047	#endif
	1048
[188]	1049	/////////////////////////////////////////////////////////////////////////////////
[204]	1050	// STEP 8 : CP0 in I/O cluster creates the first user process (process_init)
[188]	1051	/////////////////////////////////////////////////////////////////////////////////
	1052
	1053	if( (core_lid == 0) && (local_cxy == io_cxy) )
	1054	{
[101]	1055	process_init_create();
[188]	1056	}
[101]	1057
[188]	1058	/////////////////////////////////////////////////////////////////////////////////
	1059	if( core_lid == 0 ) remote_barrier( XPTR( info->io_cxy , &global_barrier ),
	1060	(info->x_size * info->y_size) );
	1061	barrier_wait( &local_barrier , info->cores_nr );
[204]	1062	/////////////////////////////////////////////////////////////////////////////////
[188]	1063
	1064	if( (core_lid == 0) && (local_cxy == 0) )
	1065	kinit_dmsg("\n[INFO] %s exit barrier 8 at cycle %d : process init created\n",
	1066	__FUNCTION__ , (uint32_t)hal_time_stamp() );
	1067
	1068	/////////////////////////////////////////////////////////////////////////////////
	1069	// STEP 9 : CP0 in cluster 0 print banner
	1070	/////////////////////////////////////////////////////////////////////////////////
	1071
	1072	if( (core_lid == 0) && (local_cxy == io_cxy) )
	1073	{
[5]	1074	print_banner( (info->x_size * info->y_size) , info->cores_nr );
[68]	1075
	1076	kinit_dmsg("\n\n* memory fooprint of main kernet objects *\n"
	1077	" - thread descriptor : %d bytes\n"
	1078	" - process descriptor : %d bytes\n"
	1079	" - cluster manager : %d bytes\n"
	1080	" - chdev descriptor : %d bytes\n"
	1081	" - core descriptor : %d bytes\n"
	1082	" - scheduler : %d bytes\n"
	1083	" - rpc fifo : %d bytes\n"
	1084	" - page descriptor : %d bytes\n"
	1085	" - mapper root : %d bytes\n"
	1086	" - ppm manager : %d bytes\n"
	1087	" - kcm manager : %d bytes\n"
	1088	" - khm manager : %d bytes\n"
	1089	" - vmm manager : %d bytes\n"
	1090	" - gpt root : %d bytes\n"
	1091	" - list item : %d bytes\n"
	1092	" - xlist item : %d bytes\n"
	1093	" - spinlock : %d bytes\n"
	1094	" - remote spinlock : %d bytes\n"
	1095	" - rwlock : %d bytes\n"
	1096	" - remote rwlock : %d bytes\n",
[127]	1097	sizeof( thread_t ),
[68]	1098	sizeof( process_t ),
	1099	sizeof( cluster_t ),
	1100	sizeof( chdev_t ),
	1101	sizeof( core_t ),
	1102	sizeof( scheduler_t ),
	1103	sizeof( rpc_fifo_t ),
	1104	sizeof( page_t ),
	1105	sizeof( mapper_t ),
	1106	sizeof( ppm_t ),
	1107	sizeof( kcm_t ),
	1108	sizeof( khm_t ),
	1109	sizeof( vmm_t ),
	1110	sizeof( gpt_t ),
	1111	sizeof( list_entry_t ),
	1112	sizeof( xlist_entry_t ),
	1113	sizeof( spinlock_t ),
	1114	sizeof( remote_spinlock_t ),
	1115	sizeof( rwlock_t ),
	1116	sizeof( remote_rwlock_t ));
[1]	1117	}
	1118
[127]	1119	// each core activates its private PTI IRQ
[188]	1120	dev_pic_enable_timer( CONFIG_SCHED_TICK_PERIOD );
[14]	1121
[188]	1122	if( (core_lid == 0) && (local_cxy == io_cxy) )
	1123	thread_dmsg("\n[INFO] %s complete kernel init in cluster 0 at cycle %d\n"
	1124	__FUNCTION__ , (uint32_t)hal_time_stamp() )
[14]	1125
	1126	// each core jump to idle thread
[50]	1127	thread_idle_func();
[127]	1128	}
[14]	1129

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source: trunk/kernel/kern/kernel_init.c @ 220

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