Context Navigation

← Previous Revision
Next Revision →
Normal
Revision Log

kernel_init.c

Last change on this file was 683, checked in by alain, 3 years ago
All modifications required to support the <tcp_chat> application including error recovery in case of packet loss.A
File size: 65.6 KB

Rev	Line
[1]	1	/*
	2	* kernel_init.c - kernel parallel initialization
[127]	3	*
[23]	4	* Authors : Mohamed Lamine Karaoui (2015)
[683]	5	* Alain Greiner (2016,2017,2018,2019,2020)
[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>
[457]	27	#include <hal_kernel_types.h>
[1]	28	#include <hal_special.h>
	29	#include <hal_context.h>
[279]	30	#include <hal_irqmask.h>
[564]	31	#include <hal_macros.h>
[296]	32	#include <hal_ppm.h>
[14]	33	#include <barrier.h>
[564]	34	#include <xbarrier.h>
[407]	35	#include <remote_fifo.h>
[1]	36	#include <core.h>
	37	#include <list.h>
[68]	38	#include <xlist.h>
[204]	39	#include <xhtab.h>
[1]	40	#include <thread.h>
	41	#include <scheduler.h>
[662]	42	#include <ksocket.h>
[1]	43	#include <kmem.h>
	44	#include <cluster.h>
	45	#include <string.h>
	46	#include <memcpy.h>
	47	#include <ppm.h>
[683]	48	#include <kcm.h>
[1]	49	#include <page.h>
[5]	50	#include <chdev.h>
[1]	51	#include <boot_info.h>
	52	#include <dqdt.h>
	53	#include <dev_mmc.h>
[5]	54	#include <dev_dma.h>
	55	#include <dev_iob.h>
[1]	56	#include <dev_ioc.h>
[5]	57	#include <dev_txt.h>
[1]	58	#include <dev_pic.h>
	59	#include <printk.h>
	60	#include <vfs.h>
[23]	61	#include <devfs.h>
[68]	62	#include <mapper.h>
[1]	63
	64	///////////////////////////////////////////////////////////////////////////////////////////
[279]	65	// All the following global variables are replicated in all clusters.
[1]	66	// They are initialised by the kernel_init() function.
[14]	67	//
[127]	68	// WARNING : The section names have been defined to control the base addresses of the
[14]	69	// boot_info structure and the idle thread descriptors, through the kernel.ld script:
[127]	70	// - the boot_info structure is built by the bootloader, and used by kernel_init.
	71	// it must be the first object in the kdata segment.
[14]	72	// - the array of idle threads descriptors must be placed on the first page boundary after
	73	// the boot_info structure in the kdata segment.
[1]	74	///////////////////////////////////////////////////////////////////////////////////////////
	75
[5]	76	// This variable defines the local boot_info structure
	77	__attribute__((section(".kinfo")))
[14]	78	boot_info_t boot_info;
[5]	79
[14]	80	// This variable defines the "idle" threads descriptors array
	81	__attribute__((section(".kidle")))
[381]	82	char idle_threads[CONFIG_THREAD_DESC_SIZE *
[14]	83	CONFIG_MAX_LOCAL_CORES] CONFIG_PPM_PAGE_ALIGNED;
	84
[127]	85	// This variable defines the local cluster manager
[5]	86	__attribute__((section(".kdata")))
[19]	87	cluster_t cluster_manager CONFIG_CACHE_LINE_ALIGNED;
[1]	88
[564]	89	// This variable defines the TXT_TX[0] chdev
[188]	90	__attribute__((section(".kdata")))
[564]	91	chdev_t txt0_tx_chdev CONFIG_CACHE_LINE_ALIGNED;
[188]	92
[564]	93	// This variable defines the TXT_RX[0] chdev
[539]	94	__attribute__((section(".kdata")))
[564]	95	chdev_t txt0_rx_chdev CONFIG_CACHE_LINE_ALIGNED;
[539]	96
[14]	97	// This variables define the kernel process0 descriptor
[5]	98	__attribute__((section(".kdata")))
[19]	99	process_t process_zero CONFIG_CACHE_LINE_ALIGNED;
[1]	100
[624]	101	// This variable defines a set of extended pointers on the distributed chdevs
[5]	102	__attribute__((section(".kdata")))
[14]	103	chdev_directory_t chdev_dir CONFIG_CACHE_LINE_ALIGNED;
[1]	104
[188]	105	// This variable contains the input IRQ indexes for the IOPIC controller
[5]	106	__attribute__((section(".kdata")))
[246]	107	iopic_input_t iopic_input CONFIG_CACHE_LINE_ALIGNED;
[1]	108
[188]	109	// This variable contains the input IRQ indexes for the LAPIC controller
[5]	110	__attribute__((section(".kdata")))
[188]	111	lapic_input_t lapic_input CONFIG_CACHE_LINE_ALIGNED;
[1]	112
[14]	113	// This variable defines the local cluster identifier
[5]	114	__attribute__((section(".kdata")))
[14]	115	cxy_t local_cxy CONFIG_CACHE_LINE_ALIGNED;
[5]	116
[623]	117	// This variable is used for core[0] cores synchronisation in kernel_init()
[5]	118	__attribute__((section(".kdata")))
[564]	119	xbarrier_t global_barrier CONFIG_CACHE_LINE_ALIGNED;
[1]	120
[127]	121	// This variable is used for local cores synchronisation in kernel_init()
[14]	122	__attribute__((section(".kdata")))
	123	barrier_t local_barrier CONFIG_CACHE_LINE_ALIGNED;
	124
[127]	125	// This variable defines the array of supported File System contexts
[50]	126	__attribute__((section(".kdata")))
	127	vfs_ctx_t fs_context[FS_TYPES_NR] CONFIG_CACHE_LINE_ALIGNED;
	128
[564]	129	// This array is used for debug, and describes the kernel locks usage,
	130	// It must be kept consistent with the defines in kernel_config.h file.
[624]	131	__attribute__((section(".kdata")))
[564]	132	char * lock_type_str[] =
	133	{
[662]	134	"unused_0", // 0 must be unused to help debug
[408]	135
[564]	136	"CLUSTER_KCM", // 1
[632]	137	"SCHED_STATE", // 2
	138	"VMM_STACK", // 3
	139	"VMM_MMAP", // 4
[657]	140	"KCM_STATE", // 5
	141	"KHM_STATE", // 6
	142	"HTAB_STATE", // 7
[669]	143	"CORE_ALARMS", // 8
[564]	144
[669]	145	"VFS_CTX", // 9
	146	"PPM_FREE", // 10
	147	"THREAD_JOIN", // 11
	148	"XHTAB_STATE", // 12
	149	"CHDEV_QUEUE", // 13
	150	"CHDEV_TXT0", // 14
	151	"CHDEV_TXTLIST", // 15
	152	"PAGE_STATE", // 16
	153	"MUTEX_STATE", // 17
	154	"CONDVAR_STATE", // 18
	155	"SEM_STATE", // 19
	156	"PROCESS_CWD", // 20
	157	"BARRIER_STATE", // 21
	158	"LISTEN_SOCKET", // 22
[564]	159
[669]	160	"CLUSTER_PREFTBL", // 23
[601]	161
[669]	162	"SOCKET_STATE", // 24
	163	"PPM_DIRTY", // 25
	164	"CLUSTER_LOCALS", // 26
	165	"CLUSTER_COPIES", // 27
	166	"PROCESS_CHILDREN", // 28
	167	"PROCESS_USERSYNC", // 29
	168	"PROCESS_FDARRAY", // 30
	169	"PROCESS_DIR", // 31
	170	"VMM_VSL", // 32
[564]	171
[669]	172	"PROCESS_THTBL", // 33
[564]	173
[669]	174	"MAPPER_STATE", // 34
	175	"VFS_SIZE", // 35
	176	"VFS_FILE", // 36
	177	"VFS_MAIN", // 37
	178	"FATFS_FAT", // 38
	179	"FBF_WINDOWS", // 39
[564]	180	};
	181
[662]	182	// debug variables to analyse the sys_read() syscalls timing
[564]	183
[438]	184	#if DEBUG_SYS_READ
[407]	185	uint32_t enter_sys_read;
	186	uint32_t exit_sys_read;
	187
[435]	188	uint32_t enter_devfs_read;
	189	uint32_t exit_devfs_read;
[407]	190
	191	uint32_t enter_txt_read;
	192	uint32_t exit_txt_read;
	193
[435]	194	uint32_t enter_chdev_cmd_read;
	195	uint32_t exit_chdev_cmd_read;
[407]	196
[435]	197	uint32_t enter_chdev_server_read;
	198	uint32_t exit_chdev_server_read;
[407]	199
[435]	200	uint32_t enter_tty_cmd_read;
	201	uint32_t exit_tty_cmd_read;
[407]	202
[435]	203	uint32_t enter_tty_isr_read;
	204	uint32_t exit_tty_isr_read;
[407]	205	#endif
	206
[662]	207	// debug variables to analyse the sys_write() syscall timing
[435]	208
[438]	209	#if DEBUG_SYS_WRITE
[435]	210	uint32_t enter_sys_write;
	211	uint32_t exit_sys_write;
	212
	213	uint32_t enter_devfs_write;
	214	uint32_t exit_devfs_write;
	215
	216	uint32_t enter_txt_write;
	217	uint32_t exit_txt_write;
	218
	219	uint32_t enter_chdev_cmd_write;
	220	uint32_t exit_chdev_cmd_write;
	221
	222	uint32_t enter_chdev_server_write;
	223	uint32_t exit_chdev_server_write;
	224
	225	uint32_t enter_tty_cmd_write;
	226	uint32_t exit_tty_cmd_write;
	227
	228	uint32_t enter_tty_isr_write;
	229	uint32_t exit_tty_isr_write;
	230	#endif
	231
[564]	232	// intrumentation variables : cumulated costs per syscall type in cluster
[624]	233
	234	#if CONFIG_INSTRUMENTATION_SYSCALLS
	235	__attribute__((section(".kdata")))
[564]	236	uint32_t syscalls_cumul_cost[SYSCALLS_NR];
	237
[624]	238	__attribute__((section(".kdata")))
[564]	239	uint32_t syscalls_occurences[SYSCALLS_NR];
[624]	240	#endif
[564]	241
[1]	242	///////////////////////////////////////////////////////////////////////////////////////////
[5]	243	// This function displays the ALMOS_MKH banner.
[1]	244	///////////////////////////////////////////////////////////////////////////////////////////
[5]	245	static void print_banner( uint32_t nclusters , uint32_t ncores )
[127]	246	{
[5]	247	printk("\n"
	248	" _ __ __ _____ ______ __ __ _ __ _ _ \n"
	249	" /\\ \| \| \| \\ / \| / ___ \\ / _____\| \| \\ / \| \| \| / / \| \| \| \| \n"
	250	" / \\ \| \| \| \\/ \| \| / \\ \| \| / \| \\/ \| \| \|/ / \| \| \| \| \n"
	251	" / /\\ \\ \| \| \| \|\\ /\| \| \| \| \| \| \| \|_____ ___ \| \|\\ /\| \| \| / \| \|___\| \| \n"
	252	" / /__\\ \\ \| \| \| \| \\/ \| \| \| \| \| \| \\_____ \\ \|___\| \| \| \\/ \| \| \| \\ \| ___ \| \n"
	253	" / ______ \\ \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|\\ \\ \| \| \| \| \n"
	254	" / / \\ \\ \| \|____ \| \| \| \| \| \\___/ \| _____/ \| \| \| \| \| \| \| \\ \\ \| \| \| \| \n"
	255	" /_/ \\_\\ \|______\| \|_\| \|_\| \\_____/ \|______/ \|_\| \|_\| \|_\| \\_\\ \|_\| \|_\| \n"
	256	"\n\n\t\t Advanced Locality Management Operating System / Multi Kernel Hybrid\n"
[457]	257	"\n\n\t\t %s / %d cluster(s) / %d core(s) per cluster\n\n",
[635]	258	CONFIG_VERSION , nclusters , ncores );
[5]	259	}
[1]	260
	261
[5]	262	///////////////////////////////////////////////////////////////////////////////////////////
[564]	263	// This function initializes the TXT_TX[0] and TXT_RX[0] chdev descriptors, implementing
	264	// the "kernel terminal", shared by all kernel instances for debug messages.
	265	// These chdev are implemented as global variables (replicated in all clusters),
	266	// because this terminal is used before the kmem allocator initialisation, but only
	267	// the chdevs in cluster 0 are registered in the "chdev_dir" directory.
[127]	268	// As this TXT0 chdev supports only the TXT_SYNC_WRITE command, we don't create
	269	// a server thread, we don't allocate a WTI, and we don't initialize the waiting queue.
[564]	270	// Note: The TXT_RX[0] chdev is created, but is not used by ALMOS-MKH (september 2018).
[5]	271	///////////////////////////////////////////////////////////////////////////////////////////
	272	// @ info : pointer on the local boot-info structure.
	273	///////////////////////////////////////////////////////////////////////////////////////////
[564]	274	static void __attribute__ ((noinline)) txt0_device_init( boot_info_t * info )
[5]	275	{
	276	boot_device_t * dev_tbl; // pointer on array of devices in boot_info
[127]	277	uint32_t dev_nr; // actual number of devices in this cluster
	278	xptr_t base; // remote pointer on segment base
	279	uint32_t func; // device functional index
[5]	280	uint32_t impl; // device implementation index
[127]	281	uint32_t i; // device index in dev_tbl
	282	uint32_t x; // X cluster coordinate
	283	uint32_t y; // Y cluster coordinate
[1]	284
[5]	285	// get number of peripherals and base of devices array from boot_info
[127]	286	dev_nr = info->ext_dev_nr;
[5]	287	dev_tbl = info->ext_dev;
[1]	288
[14]	289	// loop on external peripherals to find TXT device
[127]	290	for( i = 0 ; i < dev_nr ; i++ )
	291	{
[5]	292	base = dev_tbl[i].base;
[188]	293	func = FUNC_FROM_TYPE( dev_tbl[i].type );
	294	impl = IMPL_FROM_TYPE( dev_tbl[i].type );
[5]	295
[127]	296	if (func == DEV_FUNC_TXT )
[5]	297	{
[564]	298	// initialize TXT_TX[0] chdev
	299	txt0_tx_chdev.func = func;
	300	txt0_tx_chdev.impl = impl;
	301	txt0_tx_chdev.channel = 0;
	302	txt0_tx_chdev.base = base;
	303	txt0_tx_chdev.is_rx = false;
	304	remote_busylock_init( XPTR( local_cxy , &txt0_tx_chdev.wait_lock ),
	305	LOCK_CHDEV_TXT0 );
[188]	306
[669]	307	// make TXT specific initialisations
	308	dev_txt_init( &txt0_tx_chdev );
	309
[564]	310	// initialize TXT_RX[0] chdev
	311	txt0_rx_chdev.func = func;
	312	txt0_rx_chdev.impl = impl;
	313	txt0_rx_chdev.channel = 0;
	314	txt0_rx_chdev.base = base;
	315	txt0_rx_chdev.is_rx = true;
	316	remote_busylock_init( XPTR( local_cxy , &txt0_rx_chdev.wait_lock ),
	317	LOCK_CHDEV_TXT0 );
	318
	319	// make TXT specific initialisations
	320	dev_txt_init( &txt0_rx_chdev );
[14]	321
[564]	322	// register TXT_TX[0] & TXT_RX[0] in chdev_dir[x][y]
	323	// for all valid clusters
[5]	324	for( x = 0 ; x < info->x_size ; x++ )
	325	{
[564]	326	for( y = 0 ; y < info->y_size ; y++ )
[5]	327	{
[564]	328	cxy_t cxy = HAL_CXY_FROM_XY( x , y );
	329
	330	if( cluster_is_active( cxy ) )
	331	{
	332	hal_remote_s64( XPTR( cxy , &chdev_dir.txt_tx[0] ) ,
	333	XPTR( local_cxy , &txt0_tx_chdev ) );
	334	hal_remote_s64( XPTR( cxy , &chdev_dir.txt_rx[0] ) ,
	335	XPTR( local_cxy , &txt0_rx_chdev ) );
[559]	336	}
[5]	337	}
	338	}
[564]	339
	340	hal_fence();
[5]	341	}
[188]	342	} // end loop on devices
	343	} // end txt0_device_init()
[5]	344
[1]	345	///////////////////////////////////////////////////////////////////////////////////////////
[188]	346	// This function allocates memory and initializes the chdev descriptors for the internal
	347	// peripherals contained in the local cluster, other than the LAPIC, as specified by
	348	// the boot_info, including the linking with the driver for the specified implementation.
	349	// The relevant entries in all copies of the devices directory are initialised.
[1]	350	///////////////////////////////////////////////////////////////////////////////////////////
	351	// @ info : pointer on the local boot-info structure.
	352	///////////////////////////////////////////////////////////////////////////////////////////
[564]	353	static void __attribute__ ((noinline)) internal_devices_init( boot_info_t * info )
[1]	354	{
[188]	355	boot_device_t * dev_tbl; // pointer on array of internaldevices in boot_info
	356	uint32_t dev_nr; // actual number of devices in this cluster
	357	xptr_t base; // remote pointer on segment base
	358	uint32_t func; // device functionnal index
	359	uint32_t impl; // device implementation index
	360	uint32_t i; // device index in dev_tbl
	361	uint32_t x; // X cluster coordinate
	362	uint32_t y; // Y cluster coordinate
	363	uint32_t channels; // number of channels
	364	uint32_t channel; // channel index
	365	chdev_t * chdev_ptr; // local pointer on created chdev
[1]	366
[188]	367	// get number of internal peripherals and base from boot_info
	368	dev_nr = info->int_dev_nr;
	369	dev_tbl = info->int_dev;
[1]	370
[188]	371	// loop on internal peripherals
	372	for( i = 0 ; i < dev_nr ; i++ )
	373	{
	374	base = dev_tbl[i].base;
	375	channels = dev_tbl[i].channels;
	376	func = FUNC_FROM_TYPE( dev_tbl[i].type );
	377	impl = IMPL_FROM_TYPE( dev_tbl[i].type );
[204]	378
[188]	379	//////////////////////////
	380	if( func == DEV_FUNC_MMC )
[5]	381	{
[188]	382	// create chdev in local cluster
	383	chdev_ptr = chdev_create( func,
	384	impl,
	385	0, // channel
	386	false, // direction
	387	base );
[564]	388	if( chdev_ptr == NULL )
[580]	389	{
	390	printk("\n[PANIC] in %s : cannot create MMC chdev\n",
	391	__FUNCTION__ );
	392	hal_core_sleep();
	393	}
[188]	394
[683]	395	#if (DEBUG_KERNEL_INIT & 0x1)
	396	if( hal_time_stamp() > DEBUG_KERNEL_INIT )
	397	printk("\n[%s] created chdev[%x,%x] for MMC\n",
	398	__FUNCTION__ , local_cxy , chdev_ptr );
	399	#endif
[188]	400	// make MMC specific initialisation
	401	dev_mmc_init( chdev_ptr );
[1]	402
[188]	403	// set the MMC field in all chdev_dir[x][y] structures
	404	for( x = 0 ; x < info->x_size ; x++ )
[1]	405	{
[564]	406	for( y = 0 ; y < info->y_size ; y++ )
[188]	407	{
[564]	408	cxy_t cxy = HAL_CXY_FROM_XY( x , y );
	409
	410	if( cluster_is_active( cxy ) )
	411	{
	412	hal_remote_s64( XPTR( cxy , &chdev_dir.mmc[local_cxy] ),
[559]	413	XPTR( local_cxy , chdev_ptr ) );
	414	}
[188]	415	}
[1]	416	}
[188]	417
[438]	418	#if( DEBUG_KERNEL_INIT & 0x1 )
	419	if( hal_time_stamp() > DEBUG_KERNEL_INIT )
[683]	420	printk("\n[%s] initialised chdev[%x,%x] for MMC\n",
[407]	421	__FUNCTION__ , local_cxy , chdev_ptr );
[389]	422	#endif
[14]	423	}
[188]	424	///////////////////////////////
	425	else if( func == DEV_FUNC_DMA )
[127]	426	{
[188]	427	// create one chdev per channel in local cluster
	428	for( channel = 0 ; channel < channels ; channel++ )
	429	{
	430	// create chdev[channel] in local cluster
	431	chdev_ptr = chdev_create( func,
	432	impl,
	433	channel,
	434	false, // direction
	435	base );
[564]	436	if( chdev_ptr == NULL )
[580]	437	{
	438	printk("\n[PANIC] in %s : cannot create DMA chdev\n",
	439	__FUNCTION__ );
	440	hal_core_sleep();
	441	}
[564]	442
[683]	443	#if (DEBUG_KERNEL_INIT & 0x1)
	444	if( hal_time_stamp() > DEBUG_KERNEL_INIT )
	445	printk("\n[%s] cxy %x : created chdev[%x,%x] for DMA[%d]\n",
	446	__FUNCTION__ , local_cxy , chdev_ptr , channel );
	447	#endif
[188]	448	// make DMA specific initialisation
	449	dev_dma_init( chdev_ptr );
[127]	450
[188]	451	// initialize only the DMA[channel] field in the local chdev_dir[x][y]
	452	// structure because the DMA device is not remotely accessible.
	453	chdev_dir.dma[channel] = XPTR( local_cxy , chdev_ptr );
[5]	454
[438]	455	#if( DEBUG_KERNEL_INIT & 0x1 )
	456	if( hal_time_stamp() > DEBUG_KERNEL_INIT )
[683]	457	printk("\n[%s] initialised chdev[%x,%x] for DMA[%d]\n",
	458	__FUNCTION__ , local_cxy , chdev_ptr , channel );
[389]	459	#endif
[188]	460	}
[14]	461	}
[127]	462	}
[5]	463	} // end internal_devices_init()
	464
	465	///////////////////////////////////////////////////////////////////////////////////////////
[188]	466	// This function allocates memory and initializes the chdev descriptors for the
[408]	467	// external (shared) peripherals other than the IOPIC, as specified by the boot_info.
	468	// This includes the dynamic linking with the driver for the specified implementation.
[188]	469	// These chdev descriptors are distributed on all clusters, using a modulo on a global
[408]	470	// index, identically computed in all clusters.
[683]	471	// This function is executed in all clusters by the core[0], that computes a global index
	472	// for all external chdevs. Each core[0] core creates only the chdevs that must be placed
	473	// in the local cluster, because the global index matches the local index.
[188]	474	// The relevant entries in all copies of the devices directory are initialised.
[5]	475	///////////////////////////////////////////////////////////////////////////////////////////
	476	// @ info : pointer on the local boot-info structure.
	477	///////////////////////////////////////////////////////////////////////////////////////////
	478	static void external_devices_init( boot_info_t * info )
	479	{
[188]	480	boot_device_t * dev_tbl; // pointer on array of external devices in boot_info
	481	uint32_t dev_nr; // actual number of external devices
	482	xptr_t base; // remote pointer on segment base
[5]	483	uint32_t func; // device functionnal index
	484	uint32_t impl; // device implementation index
[188]	485	uint32_t i; // device index in dev_tbl
	486	uint32_t x; // X cluster coordinate
	487	uint32_t y; // Y cluster coordinate
	488	uint32_t channels; // number of channels
	489	uint32_t channel; // channel index
	490	uint32_t directions; // number of directions (1 or 2)
	491	uint32_t rx; // direction index (0 or 1)
[127]	492	chdev_t * chdev; // local pointer on one channel_device descriptor
[188]	493	uint32_t ext_chdev_gid; // global index of external chdev
[5]	494
	495	// get number of peripherals and base of devices array from boot_info
[127]	496	dev_nr = info->ext_dev_nr;
[5]	497	dev_tbl = info->ext_dev;
	498
[683]	499	// initializes global index (PIC is already placed in cluster 0)
[188]	500	ext_chdev_gid = 1;
	501
[5]	502	// loop on external peripherals
[127]	503	for( i = 0 ; i < dev_nr ; i++ )
	504	{
[188]	505	base = dev_tbl[i].base;
	506	channels = dev_tbl[i].channels;
	507	func = FUNC_FROM_TYPE( dev_tbl[i].type );
	508	impl = IMPL_FROM_TYPE( dev_tbl[i].type );
[5]	509
[407]	510	// There is one chdev per direction for NIC and for TXT
	511	if((func == DEV_FUNC_NIC) \|\| (func == DEV_FUNC_TXT)) directions = 2;
	512	else directions = 1;
[5]	513
[407]	514	// do nothing for ROM, that does not require a device descriptor.
[5]	515	if( func == DEV_FUNC_ROM ) continue;
	516
[188]	517	// do nothing for PIC, that is already initialized
	518	if( func == DEV_FUNC_PIC ) continue;
[5]	519
[188]	520	// check PIC device initialized
[564]	521	if( chdev_dir.pic == XPTR_NULL )
[580]	522	{
	523	printk("\n[PANIC] in %s : PIC device must be initialized first\n",
	524	__FUNCTION__ );
	525	hal_core_sleep();
	526	}
[188]	527
	528	// check external device functionnal type
[683]	529	if( (func != DEV_FUNC_IOB) &&
	530	(func != DEV_FUNC_IOC) &&
	531	(func != DEV_FUNC_TXT) &&
	532	(func != DEV_FUNC_NIC) &&
	533	(func != DEV_FUNC_FBF) )
[580]	534	{
	535	printk("\n[PANIC] in %s : undefined peripheral type\n",
	536	__FUNCTION__ );
	537	hal_core_sleep();
	538	}
[188]	539
[683]	540	// loop on channels
[428]	541	for( channel = 0 ; channel < channels ; channel++ )
[127]	542	{
[5]	543	// loop on directions
[188]	544	for( rx = 0 ; rx < directions ; rx++ )
[1]	545	{
[564]	546	// skip TXT0 that has already been initialized
	547	if( (func == DEV_FUNC_TXT) && (channel == 0) ) continue;
[428]	548
[564]	549	// all kernel instances compute the target cluster for all chdevs,
[683]	550	// and the global index ext_chdev_gid[func,channel,direction]
[564]	551	cxy_t target_cxy;
	552	while( 1 )
[536]	553	{
[564]	554	uint32_t offset = ext_chdev_gid % ( info->x_size * info->y_size );
	555	uint32_t x = offset / info->y_size;
	556	uint32_t y = offset % info->y_size;
[536]	557
[564]	558	target_cxy = HAL_CXY_FROM_XY( x , y );
	559
	560	// exit loop if target cluster is active
	561	if( cluster_is_active( target_cxy ) ) break;
	562
	563	// increment global index otherwise
	564	ext_chdev_gid++;
[550]	565	}
	566
[5]	567	// allocate and initialize a local chdev
[407]	568	// when local cluster matches target cluster
[5]	569	if( target_cxy == local_cxy )
[1]	570	{
[5]	571	chdev = chdev_create( func,
	572	impl,
	573	channel,
[188]	574	rx, // direction
[5]	575	base );
	576
[564]	577	if( chdev == NULL )
[580]	578	{
	579	printk("\n[PANIC] in %s : cannot allocate chdev\n",
	580	__FUNCTION__ );
	581	hal_core_sleep();
	582	}
[5]	583
[683]	584	#if (DEBUG_KERNEL_INIT & 0x1)
	585	if( hal_time_stamp() > DEBUG_KERNEL_INIT )
	586	printk("\n[%s] created chdev[%x,%x] for %s[%d] / is_rx %d\n",
	587	__FUNCTION__ , local_cxy , chdev , chdev_func_str(func) , channel , rx );
	588	#endif
[5]	589	// make device type specific initialisation
	590	if ( func == DEV_FUNC_IOB ) dev_iob_init( chdev );
	591	else if( func == DEV_FUNC_IOC ) dev_ioc_init( chdev );
	592	else if( func == DEV_FUNC_TXT ) dev_txt_init( chdev );
	593	else if( func == DEV_FUNC_NIC ) dev_nic_init( chdev );
[188]	594	else if( func == DEV_FUNC_FBF ) dev_fbf_init( chdev );
[5]	595
[127]	596	// all external (shared) devices are remotely accessible
[5]	597	// initialize the replicated chdev_dir[x][y] structures
[127]	598	// defining the extended pointers on chdev descriptors
[633]	599	xptr_t * entry = NULL;
[127]	600
[188]	601	if(func==DEV_FUNC_IOB ) entry = &chdev_dir.iob;
	602	if(func==DEV_FUNC_IOC ) entry = &chdev_dir.ioc[channel];
	603	if(func==DEV_FUNC_FBF ) entry = &chdev_dir.fbf[channel];
[407]	604	if((func==DEV_FUNC_TXT) && (rx==0)) entry = &chdev_dir.txt_tx[channel];
	605	if((func==DEV_FUNC_TXT) && (rx==1)) entry = &chdev_dir.txt_rx[channel];
[188]	606	if((func==DEV_FUNC_NIC) && (rx==0)) entry = &chdev_dir.nic_tx[channel];
	607	if((func==DEV_FUNC_NIC) && (rx==1)) entry = &chdev_dir.nic_rx[channel];
[127]	608
[1]	609	for( x = 0 ; x < info->x_size ; x++ )
	610	{
[564]	611	for( y = 0 ; y < info->y_size ; y++ )
[1]	612	{
[564]	613	cxy_t cxy = HAL_CXY_FROM_XY( x , y );
	614
[633]	615	if( cluster_is_active( cxy ) && ( entry != NULL ) )
[564]	616	{
	617	hal_remote_s64( XPTR( cxy , entry ),
[559]	618	XPTR( local_cxy , chdev ) );
	619	}
[5]	620	}
[1]	621	}
	622
[683]	623	#if( DEBUG_KERNEL_INIT & 1 )
[438]	624	if( hal_time_stamp() > DEBUG_KERNEL_INIT )
[683]	625	printk("\n[%s] initialised chdev[%x,%x] for %s\n",
	626	__FUNCTION__ , local_cxy, chdev , chdev->name );
[389]	627	#endif
[683]	628
[5]	629	} // end if match
	630
[19]	631	// increment chdev global index (matching or not)
[188]	632	ext_chdev_gid++;
[5]	633
	634	} // end loop on directions
	635	} // end loop on channels
[188]	636	} // end loop on devices
	637	} // end external_devices_init()
[5]	638
[188]	639	///////////////////////////////////////////////////////////////////////////////////////////
[683]	640	// This function is called by core[0][0] to allocate memory and initialize the PIC
[407]	641	// device, namely the informations attached to the external IOPIC controller, that
	642	// must be replicated in all clusters (struct iopic_input).
[188]	643	// This initialisation must be done before other devices initialisation because the IRQ
[407]	644	// routing infrastructure is required for both internal and external devices init.
[188]	645	///////////////////////////////////////////////////////////////////////////////////////////
	646	// @ info : pointer on the local boot-info structure.
	647	///////////////////////////////////////////////////////////////////////////////////////////
[564]	648	static void __attribute__ ((noinline)) iopic_init( boot_info_t * info )
[188]	649	{
	650	boot_device_t * dev_tbl; // pointer on boot_info external devices array
	651	uint32_t dev_nr; // actual number of external devices
	652	xptr_t base; // remote pointer on segment base
	653	uint32_t func; // device functionnal index
	654	uint32_t impl; // device implementation index
	655	uint32_t i; // device index in dev_tbl
	656	uint32_t x; // cluster X coordinate
	657	uint32_t y; // cluster Y coordinate
	658	bool_t found; // IOPIC found
	659	chdev_t * chdev; // pointer on PIC chdev descriptor
	660
	661	// get number of external peripherals and base of array from boot_info
	662	dev_nr = info->ext_dev_nr;
	663	dev_tbl = info->ext_dev;
	664
[564]	665	// avoid GCC warning
	666	base = XPTR_NULL;
	667	impl = 0;
	668
[188]	669	// loop on external peripherals to get the IOPIC
	670	for( i = 0 , found = false ; i < dev_nr ; i++ )
	671	{
	672	func = FUNC_FROM_TYPE( dev_tbl[i].type );
	673
[127]	674	if( func == DEV_FUNC_PIC )
[1]	675	{
[188]	676	base = dev_tbl[i].base;
	677	impl = IMPL_FROM_TYPE( dev_tbl[i].type );
	678	found = true;
	679	break;
	680	}
	681	}
[5]	682
[564]	683	// check PIC existence
	684	if( found == false )
[580]	685	{
	686	printk("\n[PANIC] in %s : PIC device not found\n",
	687	__FUNCTION__ );
	688	hal_core_sleep();
	689	}
[1]	690
[407]	691	// allocate and initialize the PIC chdev in cluster 0
	692	chdev = chdev_create( DEV_FUNC_PIC,
[188]	693	impl,
	694	0, // channel
	695	0, // direction,
	696	base );
[5]	697
[564]	698	// check memory
	699	if( chdev == NULL )
[580]	700	{
	701	printk("\n[PANIC] in %s : no memory for PIC chdev\n",
	702	__FUNCTION__ );
	703	hal_core_sleep();
	704	}
[5]	705
[188]	706	// make PIC device type specific initialisation
	707	dev_pic_init( chdev );
[1]	708
[407]	709	// register, in all clusters, the extended pointer
	710	// on PIC chdev in "chdev_dir" array
[188]	711	xptr_t * entry = &chdev_dir.pic;
	712
	713	for( x = 0 ; x < info->x_size ; x++ )
	714	{
[564]	715	for( y = 0 ; y < info->y_size ; y++ )
[188]	716	{
[564]	717	cxy_t cxy = HAL_CXY_FROM_XY( x , y );
	718
	719	if( cluster_is_active( cxy ) )
	720	{
	721	hal_remote_s64( XPTR( cxy , entry ) ,
[559]	722	XPTR( local_cxy , chdev ) );
	723	}
[188]	724	}
	725	}
[1]	726
[407]	727	// initialize, in all clusters, the "iopic_input" structure
[188]	728	// defining how external IRQs are connected to IOPIC
	729
[407]	730	// register default value for unused inputs
	731	for( x = 0 ; x < info->x_size ; x++ )
	732	{
[564]	733	for( y = 0 ; y < info->y_size ; y++ )
[407]	734	{
[564]	735	cxy_t cxy = HAL_CXY_FROM_XY( x , y );
	736
	737	if( cluster_is_active( cxy ) )
	738	{
	739	hal_remote_memset( XPTR( cxy , &iopic_input ),
	740	0xFF , sizeof(iopic_input_t) );
[559]	741	}
[407]	742	}
	743	}
	744
	745	// register input IRQ index for valid inputs
[577]	746	uint32_t id; // input IRQ index
	747	uint8_t valid; // input IRQ is connected
	748	uint32_t type; // source device type
	749	uint8_t channel; // source device channel
	750	uint8_t is_rx; // source device direction
	751	uint32_t * ptr = NULL; // local pointer on one field in iopic_input stucture
[407]	752
[188]	753	for( id = 0 ; id < CONFIG_MAX_EXTERNAL_IRQS ; id++ )
	754	{
	755	valid = dev_tbl[i].irq[id].valid;
	756	type = dev_tbl[i].irq[id].dev_type;
	757	channel = dev_tbl[i].irq[id].channel;
	758	is_rx = dev_tbl[i].irq[id].is_rx;
[407]	759	func = FUNC_FROM_TYPE( type );
[188]	760
[407]	761	// get pointer on relevant field in iopic_input
	762	if( valid )
[188]	763	{
[407]	764	if ( func == DEV_FUNC_IOC ) ptr = &iopic_input.ioc[channel];
	765	else if((func == DEV_FUNC_TXT) && (is_rx == 0)) ptr = &iopic_input.txt_tx[channel];
	766	else if((func == DEV_FUNC_TXT) && (is_rx != 0)) ptr = &iopic_input.txt_rx[channel];
[492]	767	else if((func == DEV_FUNC_NIC) && (is_rx == 0)) ptr = &iopic_input.nic_tx[channel];
	768	else if((func == DEV_FUNC_NIC) && (is_rx != 0)) ptr = &iopic_input.nic_rx[channel];
	769	else if( func == DEV_FUNC_IOB ) ptr = &iopic_input.iob;
[580]	770	else
	771	{
	772	printk("\n[PANIC] in %s : illegal source device for IOPIC input\n",
	773	__FUNCTION__ );
	774	hal_core_sleep();
	775	}
[188]	776
[407]	777	// set one entry in all "iopic_input" structures
	778	for( x = 0 ; x < info->x_size ; x++ )
	779	{
[564]	780	for( y = 0 ; y < info->y_size ; y++ )
[407]	781	{
[564]	782	cxy_t cxy = HAL_CXY_FROM_XY( x , y );
	783
	784	if( cluster_is_active( cxy ) )
	785	{
	786	hal_remote_s64( XPTR( cxy , ptr ) , id );
[559]	787	}
[407]	788	}
	789	}
[188]	790	}
	791	}
	792
[438]	793	#if( DEBUG_KERNEL_INIT & 0x1 )
[601]	794	if( hal_time_stamp() > DEBUG_KERNEL_INIT )
[407]	795	{
[601]	796	printk("\n[%s] created PIC chdev in cluster %x at cycle %d\n",
[407]	797	__FUNCTION__ , local_cxy , (uint32_t)hal_time_stamp() );
	798	dev_pic_inputs_display();
	799	}
[389]	800	#endif
[188]	801
	802	} // end iopic_init()
	803
[1]	804	///////////////////////////////////////////////////////////////////////////////////////////
[623]	805	// This function is called by all core[0]s in all cluster to complete the PIC device
[188]	806	// initialisation, namely the informations attached to the LAPIC controller.
	807	// This initialisation must be done after the IOPIC initialisation, but before other
	808	// devices initialisation because the IRQ routing infrastructure is required for both
	809	// internal and external devices initialisation.
	810	///////////////////////////////////////////////////////////////////////////////////////////
	811	// @ info : pointer on the local boot-info structure.
	812	///////////////////////////////////////////////////////////////////////////////////////////
[564]	813	static void __attribute__ ((noinline)) lapic_init( boot_info_t * info )
[188]	814	{
	815	boot_device_t * dev_tbl; // pointer on boot_info internal devices array
	816	uint32_t dev_nr; // number of internal devices
	817	uint32_t i; // device index in dev_tbl
	818	xptr_t base; // remote pointer on segment base
	819	uint32_t func; // device functionnal type in boot_info
	820	bool_t found; // LAPIC found
	821
	822	// get number of internal peripherals and base
	823	dev_nr = info->int_dev_nr;
	824	dev_tbl = info->int_dev;
	825
	826	// loop on internal peripherals to get the lapic device
	827	for( i = 0 , found = false ; i < dev_nr ; i++ )
	828	{
	829	func = FUNC_FROM_TYPE( dev_tbl[i].type );
	830
	831	if( func == DEV_FUNC_ICU )
	832	{
	833	base = dev_tbl[i].base;
	834	found = true;
	835	break;
	836	}
	837	}
	838
	839	// if the LAPIC controller is not defined in the boot_info,
	840	// we simply don't initialize the PIC extensions in the kernel,
	841	// making the assumption that the LAPIC related informations
	842	// are hidden in the hardware specific PIC driver.
	843	if( found )
	844	{
	845	// initialise the PIC extensions for
	846	// the core descriptor and core manager extensions
	847	dev_pic_extend_init( (uint32_t *)GET_PTR( base ) );
	848
	849	// initialize the "lapic_input" structure
	850	// defining how internal IRQs are connected to LAPIC
	851	uint32_t id;
	852	uint8_t valid;
	853	uint8_t channel;
	854	uint32_t func;
	855
	856	for( id = 0 ; id < CONFIG_MAX_INTERNAL_IRQS ; id++ )
	857	{
	858	valid = dev_tbl[i].irq[id].valid;
	859	func = FUNC_FROM_TYPE( dev_tbl[i].irq[id].dev_type );
	860	channel = dev_tbl[i].irq[id].channel;
	861
	862	if( valid ) // only valid local IRQs are registered
	863	{
	864	if ( func == DEV_FUNC_MMC ) lapic_input.mmc = id;
	865	else if( func == DEV_FUNC_DMA ) lapic_input.dma[channel] = id;
[580]	866	else
	867	{
	868	printk("\n[PANIC] in %s : illegal source device for LAPIC input\n",
	869	__FUNCTION__ );
	870	hal_core_sleep();
	871	}
[188]	872	}
	873	}
	874	}
	875	} // end lapic_init()
	876
	877	///////////////////////////////////////////////////////////////////////////////////////////
[14]	878	// This static function returns the identifiers of the calling core.
	879	///////////////////////////////////////////////////////////////////////////////////////////
	880	// @ info : pointer on boot_info structure.
	881	// @ lid : [out] core local index in cluster.
	882	// @ cxy : [out] cluster identifier.
	883	// @ lid : [out] core global identifier (hardware).
[657]	884	// @ return 0 if success / return -1 if not found.
[14]	885	///////////////////////////////////////////////////////////////////////////////////////////
[564]	886	static error_t __attribute__ ((noinline)) get_core_identifiers( boot_info_t * info,
	887	lid_t * lid,
	888	cxy_t * cxy,
	889	gid_t * gid )
[14]	890	{
[127]	891	uint32_t i;
[14]	892	gid_t global_id;
[19]	893
[14]	894	// get global identifier from hardware register
[127]	895	global_id = hal_get_gid();
[14]	896
	897	// makes an associative search in boot_info to get (cxy,lid) from global_id
	898	for( i = 0 ; i < info->cores_nr ; i++ )
	899	{
	900	if( global_id == info->core[i].gid )
	901	{
	902	*lid = info->core[i].lid;
	903	*cxy = info->core[i].cxy;
	904	*gid = global_id;
	905	return 0;
	906	}
	907	}
[657]	908	return -1;
[19]	909	}
[14]	910
[626]	911
	912
	913
	914
[14]	915	///////////////////////////////////////////////////////////////////////////////////////////
[1]	916	// This function is the entry point for the kernel initialisation.
[651]	917	// It is executed by all cores in all clusters, but only core[cxy][0] initializes
[623]	918	// the shared resources such as the cluster manager, or the local peripherals.
[19]	919	// To comply with the multi-kernels paradigm, it accesses only local cluster memory, using
	920	// only information contained in the local boot_info_t structure, set by the bootloader.
[623]	921	// Only core[0] in cluster 0 print the log messages.
[1]	922	///////////////////////////////////////////////////////////////////////////////////////////
	923	// @ info : pointer on the local boot-info structure.
	924	///////////////////////////////////////////////////////////////////////////////////////////
	925	void kernel_init( boot_info_t * info )
	926	{
[204]	927	lid_t core_lid = -1; // running core local index
	928	cxy_t core_cxy = -1; // running core cluster identifier
	929	gid_t core_gid; // running core hardware identifier
	930	cluster_t * cluster; // pointer on local cluster manager
	931	core_t * core; // pointer on running core descriptor
	932	thread_t * thread; // pointer on idle thread descriptor
	933
	934	xptr_t vfs_root_inode_xp; // extended pointer on VFS root inode
	935	xptr_t devfs_dev_inode_xp; // extended pointer on DEVFS dev inode
	936	xptr_t devfs_external_inode_xp; // extended pointer on DEVFS external inode
	937
[1]	938	error_t error;
[285]	939	reg_t status; // running core status register
[1]	940
[188]	941	/////////////////////////////////////////////////////////////////////////////////
[623]	942	// STEP 1 : Each core get its core identifier from boot_info, and makes
[188]	943	// a partial initialisation of its private idle thread descriptor.
[623]	944	// core[0] initializes the "local_cxy" global variable.
	945	// core[0] in cluster[0] initializes the TXT0 chdev for log messages.
[188]	946	/////////////////////////////////////////////////////////////////////////////////
	947
[23]	948	error = get_core_identifiers( info,
[14]	949	&core_lid,
	950	&core_cxy,
	951	&core_gid );
[1]	952
[623]	953	// core[0] initialize cluster identifier
[14]	954	if( core_lid == 0 ) local_cxy = info->cxy;
[1]	955
[127]	956	// each core gets a pointer on its private idle thread descriptor
	957	thread = (thread_t )( idle_threads + (core_lid CONFIG_THREAD_DESC_SIZE) );
[68]	958
[127]	959	// each core registers this thread pointer in hardware register
[68]	960	hal_set_current_thread( thread );
[71]	961
[407]	962	// each core register core descriptor pointer in idle thread descriptor
	963	thread->core = &LOCAL_CLUSTER->core_tbl[core_lid];
	964
[564]	965	// each core initializes the idle thread locks counters
	966	thread->busylocks = 0;
[124]	967
[564]	968	#if DEBUG_BUSYLOCK
	969	// each core initialise the idle thread list of busylocks
	970	xlist_root_init( XPTR( local_cxy , &thread->busylocks_root ) );
	971	#endif
[14]	972
[623]	973	// core[0] initializes cluster info
[564]	974	if( core_lid == 0 ) cluster_info_init( info );
	975
[623]	976	// core[0] in cluster[0] initialises TXT0 chdev descriptor
[564]	977	if( (core_lid == 0) && (core_cxy == 0) ) txt0_device_init( info );
	978
[623]	979	// all cores check identifiers
	980	if( error )
	981	{
	982	printk("\n[PANIC] in %s : illegal core : gid %x / cxy %x / lid %d",
	983	__FUNCTION__, core_lid, core_cxy, core_lid );
	984	hal_core_sleep();
	985	}
	986
[14]	987	/////////////////////////////////////////////////////////////////////////////////
[564]	988	if( core_lid == 0 ) xbarrier_wait( XPTR( 0 , &global_barrier ),
	989	(info->x_size * info->y_size) );
[14]	990	barrier_wait( &local_barrier , info->cores_nr );
[437]	991	/////////////////////////////////////////////////////////////////////////////////
[14]	992
[438]	993	#if DEBUG_KERNEL_INIT
[583]	994	if( (core_lid == 0) & (local_cxy == 0) )
[624]	995	printk("\n[%s] exit barrier 1 : TXT0 initialized / cycle %d\n",
[610]	996	__FUNCTION__, (uint32_t)hal_get_cycles() );
[437]	997	#endif
[14]	998
[623]	999	/////////////////////////////////////////////////////////////////////////////////
[637]	1000	// STEP 2 : core[0] initializes the cluster manager,
	1001	// including the physical memory allocators.
[623]	1002	/////////////////////////////////////////////////////////////////////////////////
[188]	1003
[651]	1004	// core[0] initialises DQDT (only core[0][0] build the quad-tree)
[582]	1005	if( core_lid == 0 ) dqdt_init();
	1006
[623]	1007	// core[0] initialize other cluster manager complex structures
[14]	1008	if( core_lid == 0 )
[1]	1009	{
[564]	1010	error = cluster_manager_init( info );
[1]	1011
[14]	1012	if( error )
[580]	1013	{
	1014	printk("\n[PANIC] in %s : cannot initialize cluster manager in cluster %x\n",
	1015	__FUNCTION__, local_cxy );
	1016	hal_core_sleep();
	1017	}
[14]	1018	}
[5]	1019
[14]	1020	/////////////////////////////////////////////////////////////////////////////////
[564]	1021	if( core_lid == 0 ) xbarrier_wait( XPTR( 0 , &global_barrier ),
	1022	(info->x_size * info->y_size) );
[14]	1023	barrier_wait( &local_barrier , info->cores_nr );
	1024	/////////////////////////////////////////////////////////////////////////////////
[1]	1025
[438]	1026	#if DEBUG_KERNEL_INIT
	1027	if( (core_lid == 0) & (local_cxy == 0) )
[624]	1028	printk("\n[%s] exit barrier 2 : cluster manager initialized / cycle %d\n",
[610]	1029	__FUNCTION__, (uint32_t)hal_get_cycles() );
[437]	1030	#endif
[1]	1031
[188]	1032	/////////////////////////////////////////////////////////////////////////////////
[624]	1033	// STEP 3 : all cores initialize the idle thread descriptor.
	1034	// core[0] initializes the process_zero descriptor,
[623]	1035	// including the kernel VMM (both GPT and VSL)
[188]	1036	/////////////////////////////////////////////////////////////////////////////////
	1037
	1038	// all cores get pointer on local cluster manager & core descriptor
[14]	1039	cluster = &cluster_manager;
[127]	1040	core = &cluster->core_tbl[core_lid];
[1]	1041
[624]	1042	// all cores update the register(s) defining the kernel
	1043	// entry points for interrupts, exceptions and syscalls,
	1044	// this must be done before VFS initialisation, because
	1045	// kernel_init() uses RPCs requiring IPIs...
	1046	hal_set_kentry();
	1047
	1048	// all cores initialize the idle thread descriptor
	1049	thread_idle_init( thread,
	1050	THREAD_IDLE,
	1051	&thread_idle_func,
	1052	NULL,
	1053	core_lid );
	1054
[623]	1055	// core[0] initializes the process_zero descriptor,
	1056	if( core_lid == 0 ) process_zero_create( &process_zero , info );
[5]	1057
[623]	1058	/////////////////////////////////////////////////////////////////////////////////
	1059	if( core_lid == 0 ) xbarrier_wait( XPTR( 0 , &global_barrier ),
	1060	(info->x_size * info->y_size) );
	1061	barrier_wait( &local_barrier , info->cores_nr );
	1062	/////////////////////////////////////////////////////////////////////////////////
	1063
	1064	#if DEBUG_KERNEL_INIT
	1065	if( (core_lid == 0) & (local_cxy == 0) )
[624]	1066	printk("\n[%s] exit barrier 3 : kernel processs initialized / cycle %d\n",
[623]	1067	__FUNCTION__, (uint32_t)hal_get_cycles() );
	1068	#endif
	1069
	1070	/////////////////////////////////////////////////////////////////////////////////
	1071	// STEP 4 : all cores initialize their private MMU
	1072	// core[0] in cluster 0 initializes the IOPIC device.
	1073	/////////////////////////////////////////////////////////////////////////////////
	1074
	1075	// all cores initialise their MMU
	1076	hal_mmu_init( &process_zero.vmm.gpt );
	1077
	1078	// core[0] in cluster[0] initializes the PIC chdev,
[188]	1079	if( (core_lid == 0) && (local_cxy == 0) ) iopic_init( info );
	1080
	1081	////////////////////////////////////////////////////////////////////////////////
[564]	1082	if( core_lid == 0 ) xbarrier_wait( XPTR( 0 , &global_barrier ),
	1083	(info->x_size * info->y_size) );
[188]	1084	barrier_wait( &local_barrier , info->cores_nr );
	1085	////////////////////////////////////////////////////////////////////////////////
[127]	1086
[438]	1087	#if DEBUG_KERNEL_INIT
	1088	if( (core_lid == 0) & (local_cxy == 0) )
[624]	1089	printk("\n[%s] exit barrier 4 : MMU and IOPIC initialized / cycle %d\n",
[610]	1090	__FUNCTION__, (uint32_t)hal_get_cycles() );
[437]	1091	#endif
[1]	1092
[188]	1093	////////////////////////////////////////////////////////////////////////////////
[637]	1094	// STEP 5 : core[0] initialize the distibuted LAPIC descriptor.
	1095	// core[0] initialize the internal chdev descriptors
[623]	1096	// core[0] initialize the local external chdev descriptors
[188]	1097	////////////////////////////////////////////////////////////////////////////////
[5]	1098
[623]	1099	// all core[0]s initialize their local LAPIC extension,
[279]	1100	if( core_lid == 0 ) lapic_init( info );
	1101
[623]	1102	// core[0] scan the internal (private) peripherals,
[188]	1103	// and allocates memory for the corresponding chdev descriptors.
	1104	if( core_lid == 0 ) internal_devices_init( info );
[1]	1105
[623]	1106	// All core[0]s contribute to initialise external peripheral chdev descriptors.
	1107	// Each core[0][cxy] scan the set of external (shared) peripherals (but the TXT0),
[14]	1108	// and allocates memory for the chdev descriptors that must be placed
[127]	1109	// on the (cxy) cluster according to the global index value.
[188]	1110
[14]	1111	if( core_lid == 0 ) external_devices_init( info );
[1]	1112
[14]	1113	/////////////////////////////////////////////////////////////////////////////////
[564]	1114	if( core_lid == 0 ) xbarrier_wait( XPTR( 0 , &global_barrier ),
	1115	(info->x_size * info->y_size) );
[14]	1116	barrier_wait( &local_barrier , info->cores_nr );
	1117	/////////////////////////////////////////////////////////////////////////////////
[5]	1118
[438]	1119	#if DEBUG_KERNEL_INIT
	1120	if( (core_lid == 0) & (local_cxy == 0) )
[624]	1121	printk("\n[%s] exit barrier 5 : chdevs initialised / cycle %d\n",
[610]	1122	__FUNCTION__, (uint32_t)hal_get_cycles() );
[437]	1123	#endif
[1]	1124
[657]	1125	#if CONFIG_INSTRUMENTATION_CHDEVS
[443]	1126	if( (core_lid == 0) & (local_cxy == 0) )
[437]	1127	chdev_dir_display();
	1128	#endif
	1129
[188]	1130	/////////////////////////////////////////////////////////////////////////////////
[657]	1131	// STEP 6 : All cores enable IPI (Inter Procesor Interrupt),
	1132	// All cores unblock the idle thread, and register it in scheduler.
	1133	// The core[0] in cluster defined by the CONFIG_VFS_ROOT_CXY parameter,
	1134	// access the IOC device to initialize the VFS for the FS identified
	1135	// by the CONFIG_VFS_ROOT_IS_*** parameter. It does the following
	1136	// actions in the VFS_ROOT cluster :
	1137	// 1. allocate and initialize the selected FS context,
	1138	// 2. create and initializes the VFS root inodes,
	1139	// 3. initialize the VFS context for FATFS (in fs_context[] array),
	1140	// 4. create the <.> and <..> dentries in VFS root directory,
	1141	// 5. register the VFS root inode in process_zero descriptor,
	1142	// 6. allocate the DEVFS context,
	1143	// 7. initialize the VFS context for DEVFS (in fs_context[] array),
	1144	// 8. create the <dev> and <external> inodes,
	1145	// 9. initialize the DEVFS context.
[188]	1146	/////////////////////////////////////////////////////////////////////////////////
	1147
[564]	1148	// All cores enable IPI
[279]	1149	dev_pic_enable_ipi();
	1150	hal_enable_irq( &status );
	1151
[624]	1152	// all cores unblock the idle thread, and register it in scheduler
[296]	1153	thread_unblock( XPTR( local_cxy , thread ) , THREAD_BLOCKED_GLOBAL );
[103]	1154	core->scheduler.idle = thread;
[1]	1155
[657]	1156	// core[O] in VFS_ROOT cluster creates the VFS root
	1157	if( (core_lid == 0) && (local_cxy == CONFIG_VFS_ROOT_CXY ) )
[14]	1158	{
[614]	1159	// Only FATFS is supported yet,
[657]	1160	// TODO other File System can be introduced below
[23]	1161	if( CONFIG_VFS_ROOT_IS_FATFS )
	1162	{
[657]	1163	// 1. allocate memory and initialize FATFS context in VFS_ROOT cluster
	1164	xptr_t fatfs_ctx_xp = fatfs_ctx_alloc( CONFIG_VFS_ROOT_CXY );
[188]	1165
[657]	1166	if( fatfs_ctx_xp == XPTR_NULL )
[580]	1167	{
[657]	1168	printk("\n[PANIC] in %s : cannot allocate FATFS context in cluster %x\n",
	1169	__FUNCTION__ , CONFIG_VFS_ROOT_CXY );
[580]	1170	hal_core_sleep();
	1171	}
[188]	1172
[657]	1173	// initialise FATFS context in VFS_ROOT cluster from IOC device (boot_record)
	1174	error = fatfs_ctx_init( fatfs_ctx_xp );
[626]	1175
[657]	1176	if( error )
	1177	{
	1178	printk("\n[PANIC] in %s : cannot initialize FATFS context in cluster %x\n",
	1179	__FUNCTION__ , CONFIG_VFS_ROOT_CXY );
	1180	hal_core_sleep();
	1181	}
	1182
	1183	#if( DEBUG_KERNEL_INIT & 1 )
	1184	printk("\n[%s] initialized FATFS context in cluster %x\n",
	1185	__FUNCTION__, CONFIG_VFS_ROOT_CXY );
	1186	#endif
	1187
	1188	// get various informations from FATFS context
	1189	fatfs_ctx_t * fatfs_ctx_ptr = GET_PTR( fatfs_ctx_xp );
	1190
	1191	uint32_t root_dir_cluster = hal_remote_l32( XPTR( CONFIG_VFS_ROOT_CXY,
	1192	&fatfs_ctx_ptr->root_dir_cluster ) );
	1193
	1194	uint32_t bytes_per_sector = hal_remote_l32( XPTR( CONFIG_VFS_ROOT_CXY,
	1195	&fatfs_ctx_ptr->bytes_per_sector ) );
[188]	1196
[657]	1197	uint32_t sectors_per_cluster = hal_remote_l32( XPTR( CONFIG_VFS_ROOT_CXY,
	1198	&fatfs_ctx_ptr->sectors_per_cluster ) );
	1199
	1200	uint32_t cluster_size = bytes_per_sector * sectors_per_cluster;
	1201
	1202	uint32_t fat_sectors_count = hal_remote_l32( XPTR( CONFIG_VFS_ROOT_CXY,
	1203	&fatfs_ctx_ptr->fat_sectors_count ) ) << 7;
	1204
	1205	uint32_t total_clusters = fat_sectors_count << 7;
	1206
	1207	// 2. create VFS root inode in VFS_ROOT cluster
	1208	// TODO define attr, rights, uid, gid
	1209	error = vfs_inode_create( CONFIG_VFS_ROOT_CXY, // target cluster
	1210	FS_TYPE_FATFS, // fs_type
	1211	0, // attr
	1212	0, // rights
	1213	0, // uid
	1214	0, // gid
	1215	&vfs_root_inode_xp ); // return
[564]	1216	if( error )
[580]	1217	{
[657]	1218	printk("\n[PANIC] in %s : cannot create VFS root inode in cluster %x\n",
	1219	__FUNCTION__ , CONFIG_VFS_ROOT_CXY );
[580]	1220	hal_core_sleep();
	1221	}
[188]	1222
[657]	1223	#if( DEBUG_KERNEL_INIT & 1 )
	1224	vfs_inode_t * root_inode = GET_PTR( vfs_root_inode_xp );
	1225	printk("\n[%s] created </> root inode %x in cluster %x / ctx %x\n",
	1226	__FUNCTION__, root_inode, CONFIG_VFS_ROOT_CXY, root_inode->ctx );
	1227	#endif
	1228
	1229	// update FATFS root inode "type" and "extend" fields
	1230	vfs_inode_t * vfs_root_inode_ptr = GET_PTR( vfs_root_inode_xp );
	1231
	1232	hal_remote_s32( XPTR( CONFIG_VFS_ROOT_CXY , &vfs_root_inode_ptr->type ),
[669]	1233	FILE_TYPE_DIR );
[657]	1234
	1235	hal_remote_spt( XPTR( CONFIG_VFS_ROOT_CXY , &vfs_root_inode_ptr->extend ),
[601]	1236	(void*)(intptr_t)root_dir_cluster );
[188]	1237
[657]	1238	// 3. initialize the VFS context for FATFS in VFS_ROOT cluster
	1239	vfs_ctx_init( CONFIG_VFS_ROOT_CXY, // target cluster
	1240	FS_TYPE_FATFS, // fs type
	1241	total_clusters, // number of clusters
	1242	cluster_size, // bytes
	1243	vfs_root_inode_xp, // VFS root
	1244	fatfs_ctx_ptr ); // extend
	1245
	1246	#if( DEBUG_KERNEL_INIT & 1 )
	1247	vfs_ctx_t * vfs_for_fatfs_ctx = &fs_context[FS_TYPE_FATFS];
	1248	printk("\n[%s] initialized VFS_for_FATFS context in cluster %x / ctx %x / fs_type %d\n",
	1249	__FUNCTION__, CONFIG_VFS_ROOT_CXY, vfs_for_fatfs_ctx, vfs_for_fatfs_ctx->type );
	1250	#endif
[23]	1251	}
	1252	else
	1253	{
[657]	1254	printk("\n[PANIC] in %s : unsupported VFS type in cluster %x\n",
	1255	__FUNCTION__ , CONFIG_VFS_ROOT_CXY );
[580]	1256	hal_core_sleep();
[23]	1257	}
	1258
[657]	1259	// 4. create the <.> and <..> dentries in VFS root directory
[614]	1260	// the VFS root parent inode is the VFS root inode itself
	1261	vfs_add_special_dentries( vfs_root_inode_xp,
	1262	vfs_root_inode_xp );
	1263
[657]	1264	// 5. register VFS root inode in target cluster process_zero descriptor
	1265	hal_remote_s64( XPTR( CONFIG_VFS_ROOT_CXY , &process_zero.vfs_root_xp ),
	1266	vfs_root_inode_xp );
	1267	hal_remote_s64( XPTR( CONFIG_VFS_ROOT_CXY , &process_zero.cwd_xp ),
	1268	vfs_root_inode_xp );
	1269
	1270	// 6. allocate memory for DEVFS context in VFS_ROOT cluster
	1271	xptr_t devfs_ctx_xp = devfs_ctx_alloc( CONFIG_VFS_ROOT_CXY );
	1272
	1273	if( devfs_ctx_xp == XPTR_NULL )
	1274	{
	1275	printk("\n[PANIC] in %s : cannot create DEVFS context in cluster %x\n",
	1276	__FUNCTION__ , CONFIG_VFS_ROOT_CXY );
	1277	hal_core_sleep();
	1278	}
	1279
	1280	// 7. initialize the VFS context for DEVFS in VFS_ROOT cluster
	1281	vfs_ctx_init( CONFIG_VFS_ROOT_CXY, // target cluster
	1282	FS_TYPE_DEVFS, // fs type
	1283	0, // total_clusters: unused
	1284	0, // cluster_size: unused
	1285	vfs_root_inode_xp, // VFS root
	1286	GET_PTR( devfs_ctx_xp ) ); // extend
	1287
	1288	#if( DEBUG_KERNEL_INIT & 1 )
	1289	vfs_ctx_t * vfs_for_devfs_ctx = &fs_context[FS_TYPE_DEVFS];
	1290	printk("\n[%s] initialized VFS_for_DEVFS context in cluster %x / ctx %x / fs_type %d\n",
	1291	__FUNCTION__, CONFIG_VFS_ROOT_CXY, vfs_for_devfs_ctx, vfs_for_devfs_ctx->type );
	1292	#endif
	1293
	1294	// 8. create "dev" and "external" inodes (directories)
	1295	devfs_global_init( vfs_root_inode_xp,
	1296	&devfs_dev_inode_xp,
	1297	&devfs_external_inode_xp );
	1298
	1299	// 9. initializes DEVFS context in VFS_ROOT cluster
	1300	devfs_ctx_init( devfs_ctx_xp,
	1301	devfs_dev_inode_xp,
	1302	devfs_external_inode_xp );
[188]	1303	}
	1304
	1305	/////////////////////////////////////////////////////////////////////////////////
[564]	1306	if( core_lid == 0 ) xbarrier_wait( XPTR( 0 , &global_barrier ),
	1307	(info->x_size * info->y_size) );
[188]	1308	barrier_wait( &local_barrier , info->cores_nr );
	1309	/////////////////////////////////////////////////////////////////////////////////
	1310
[438]	1311	#if DEBUG_KERNEL_INIT
[657]	1312	if( (core_lid == 0) & (local_cxy == CONFIG_VFS_ROOT_CXY) )
	1313	printk("\n[%s] exit barrier 6 : VFS root inode (%x) created in cluster (%x) / cycle %d\n",
	1314	__FUNCTION__, GET_CXY(vfs_root_inode_xp),
	1315	GET_PTR(vfs_root_inode_xp), (uint32_t)hal_get_cycles() );
[437]	1316	#endif
[188]	1317
	1318	/////////////////////////////////////////////////////////////////////////////////
[657]	1319	// STEP 7 : In all clusters other than the VFS_ROOT cluster, the core[0] makes
	1320	// the following local actions to complete the VFS initialisation :
	1321	// 1. allocate a local context for the selected FS extension,
	1322	// 2. copy FS context from VFS_ROOT cluster to local cluster,
	1323	// 3. copy VFS_for_FATFS context from VFS_ROOT cluster to local cluster,
	1324	// 4. allocate a local context for the DEVFS extension,
	1325	// 5. copy DEVFS context from VFS_ROOT cluster to local cluster,
	1326	// 6. update the local "root_inode_xp" field in process_zero.
[188]	1327	/////////////////////////////////////////////////////////////////////////////////
	1328
[657]	1329	if( (core_lid == 0) && (local_cxy != CONFIG_VFS_ROOT_CXY) )
[188]	1330	{
[657]	1331	// only FATFS is supported yet
	1332	// TODO other File System can be introduced below
[188]	1333	if( CONFIG_VFS_ROOT_IS_FATFS )
[23]	1334	{
[657]	1335	// 1. allocate a local FATFS context extension
	1336	xptr_t local_fatfs_ctx_xp = fatfs_ctx_alloc( local_cxy );
[188]	1337
[657]	1338	if( local_fatfs_ctx_xp == XPTR_NULL )
[580]	1339	{
	1340	printk("\n[PANIC] in %s : cannot create FATFS context in cluster %x\n",
	1341	__FUNCTION__ , local_cxy );
	1342	hal_core_sleep();
	1343	}
[188]	1344
[657]	1345	// get local pointer on VFS_for_FATFS context (same in all clusters)
	1346	vfs_ctx_t * vfs_fat_ctx_ptr = &fs_context[FS_TYPE_FATFS];
[188]	1347
[657]	1348	// build extended pointer on VFS_for_FATFS "extend" field in VFS_ROOT cluster
	1349	xptr_t fatfs_extend_xp = XPTR( CONFIG_VFS_ROOT_CXY , &vfs_fat_ctx_ptr->extend );
[389]	1350
[657]	1351	// get local pointer on FATFS context in VFS_ROOT cluster
	1352	fatfs_ctx_t * remote_fatfs_ctx_ptr = hal_remote_lpt( fatfs_extend_xp );
[389]	1353
[657]	1354	// build extended pointer on FATFS context in VFS_ROOT cluster
	1355	xptr_t remote_fatfs_ctx_xp = XPTR( CONFIG_VFS_ROOT_CXY , remote_fatfs_ctx_ptr );
[188]	1356
[657]	1357	// 2. copy FATFS context from VFS_ROOT cluster to local cluster
	1358	hal_remote_memcpy( local_fatfs_ctx_xp,
	1359	remote_fatfs_ctx_xp,
	1360	sizeof(fatfs_ctx_t) );
[188]	1361
[657]	1362	// build extended pointer on remote VFS_for_FATFS context
	1363	xptr_t remote_vfs_ctx_xp = XPTR( CONFIG_VFS_ROOT_CXY , vfs_fat_ctx_ptr );
[23]	1364
[657]	1365	// build extended pointer on local VFS_for_FATFS context
	1366	xptr_t local_vfs_ctx_xp = XPTR( local_cxy , vfs_fat_ctx_ptr );
	1367
	1368	// 3. copy VFS_for_FATFS context from VFS_ROOT cluster to local cluster
	1369	hal_remote_memcpy( local_vfs_ctx_xp,
	1370	remote_vfs_ctx_xp,
	1371	sizeof(vfs_ctx_t) );
[101]	1372
[657]	1373	// update "extend" field in local VFS_for_FATFS context
	1374	vfs_fat_ctx_ptr->extend = GET_PTR( local_fatfs_ctx_xp );
[14]	1375
[657]	1376	// check local FATFS and VFS context copies
[669]	1377	assert( __FUNCTION__, (((fatfs_ctx_t *)vfs_fat_ctx_ptr->extend)->sectors_per_cluster == 8),
	1378	"illegal FATFS context" );
[101]	1379
[657]	1380	}
	1381	else
[580]	1382	{
[657]	1383	printk("\n[PANIC] in %s : unsupported VFS type in cluster %x\n",
[580]	1384	__FUNCTION__ , local_cxy );
	1385	hal_core_sleep();
	1386	}
[564]	1387
[657]	1388	// 4. allocate a local DEVFS context extension,
	1389	xptr_t local_devfs_ctx_xp = devfs_ctx_alloc( local_cxy );
[564]	1390
[657]	1391	// get local pointer on VFS_for_DEVFS context (same in all clusters)
	1392	vfs_ctx_t * vfs_dev_ctx_ptr = &fs_context[FS_TYPE_DEVFS];
[188]	1393
[657]	1394	// build extended pointer on VFS_for_DEVFS extend field in VFS_ROOT cluster
	1395	xptr_t remote_extend_xp = XPTR( CONFIG_VFS_ROOT_CXY , &vfs_dev_ctx_ptr->extend );
[188]	1396
[657]	1397	// get local pointer on DEVFS context in VFS_ROOT cluster
	1398	devfs_ctx_t * remote_devfs_ctx_ptr = hal_remote_lpt( remote_extend_xp );
	1399
	1400	// build extended pointer on FATFS context in VFS_ROOT cluster
	1401	xptr_t remote_devfs_ctx_xp = XPTR( CONFIG_VFS_ROOT_CXY , remote_devfs_ctx_ptr );
	1402
	1403	// 5. copy DEVFS context from VFS_ROOT cluster to local cluster
	1404	hal_remote_memcpy( local_devfs_ctx_xp,
	1405	remote_devfs_ctx_xp,
	1406	sizeof(devfs_ctx_t) );
	1407
	1408	// update "extend" field in local VFS_for_DEVFS context
	1409	vfs_dev_ctx_ptr->extend = GET_PTR( local_devfs_ctx_xp );
	1410
	1411	// get extended pointer on VFS root inode from VFS_ROOT cluster
	1412	vfs_root_inode_xp = hal_remote_l64( XPTR( CONFIG_VFS_ROOT_CXY,
	1413	&process_zero.vfs_root_xp ) );
	1414
	1415	// 6. update local process_zero descriptor
	1416	process_zero.vfs_root_xp = vfs_root_inode_xp;
	1417	process_zero.cwd_xp = vfs_root_inode_xp;
	1418	}
	1419
[188]	1420	/////////////////////////////////////////////////////////////////////////////////
[564]	1421	if( core_lid == 0 ) xbarrier_wait( XPTR( 0 , &global_barrier ),
	1422	(info->x_size * info->y_size) );
[188]	1423	barrier_wait( &local_barrier , info->cores_nr );
[204]	1424	/////////////////////////////////////////////////////////////////////////////////
[188]	1425
[438]	1426	#if DEBUG_KERNEL_INIT
	1427	if( (core_lid == 0) & (local_cxy == 0) )
[657]	1428	printk("\n[%s] exit barrier 7 : VFS & DEVFS contexts replicated in all clusters / cycle %d\n",
	1429	__FUNCTION__ , (uint32_t)hal_get_cycles() );
[437]	1430	#endif
[188]	1431
	1432	/////////////////////////////////////////////////////////////////////////////////
[657]	1433	// STEP 8 : In all clusters in parallel, core[0] completes DEVFS initialization.
	1434	// Each core[0] creates the local DEVFS "internal" directory,
	1435	// and creates the pseudo-files for chdevs placed in local cluster.
[188]	1436	/////////////////////////////////////////////////////////////////////////////////
	1437
	1438	if( core_lid == 0 )
	1439	{
[657]	1440	// get local pointer on local DEVFS context
	1441	devfs_ctx_t * ctx = fs_context[FS_TYPE_DEVFS].extend;
[188]	1442
[204]	1443	// populate DEVFS in all clusters
[657]	1444	devfs_local_init( ctx->dev_inode_xp,
	1445	ctx->external_inode_xp );
[188]	1446	}
	1447
	1448	/////////////////////////////////////////////////////////////////////////////////
[564]	1449	if( core_lid == 0 ) xbarrier_wait( XPTR( 0 , &global_barrier ),
	1450	(info->x_size * info->y_size) );
[188]	1451	barrier_wait( &local_barrier , info->cores_nr );
[204]	1452	/////////////////////////////////////////////////////////////////////////////////
[188]	1453
[438]	1454	#if DEBUG_KERNEL_INIT
	1455	if( (core_lid == 0) & (local_cxy == 0) )
[657]	1456	printk("\n[%s] exit barrier 8 : DEVFS initialized in all clusters / cycle %d\n",
[610]	1457	__FUNCTION__, (uint32_t)hal_get_cycles() );
[437]	1458	#endif
[188]	1459
[623]	1460	#if( DEBUG_KERNEL_INIT & 1 )
	1461	if( (core_lid == 0) & (local_cxy == 0) )
	1462	vfs_display( vfs_root_inode_xp );
	1463	#endif
	1464
[188]	1465	/////////////////////////////////////////////////////////////////////////////////
[657]	1466	// STEP 9 : core[0] in cluster 0 creates the first user process (process_init).
	1467	// This include the process VMM (GPT and VSL) creation.
	1468	// Finally, it prints the ALMOS-MKH banner.
[188]	1469	/////////////////////////////////////////////////////////////////////////////////
	1470
[457]	1471	if( (core_lid == 0) && (local_cxy == 0) )
[188]	1472	{
[669]	1473	process_init_create();
[188]	1474	}
[101]	1475
[624]	1476	#if DEBUG_KERNEL_INIT
	1477	if( (core_lid == 0) & (local_cxy == 0) )
[657]	1478	printk("\n[%s] exit barrier 9 : process_init created in cluster 0 / cycle %d\n",
[624]	1479	__FUNCTION__, (uint32_t)hal_get_cycles() );
	1480	#endif
	1481
[564]	1482	if( (core_lid == 0) && (local_cxy == 0) )
[188]	1483	{
[5]	1484	print_banner( (info->x_size * info->y_size) , info->cores_nr );
[623]	1485	}
[68]	1486
[635]	1487	#if CONFIG_INSTRUMENTATION_FOOTPRINT
[623]	1488	if( (core_lid == 0) & (local_cxy == 0) )
[437]	1489	printk("\n\n***** memory fooprint for main kernel objects\n\n"
[68]	1490	" - thread descriptor : %d bytes\n"
	1491	" - process descriptor : %d bytes\n"
	1492	" - cluster manager : %d bytes\n"
	1493	" - chdev descriptor : %d bytes\n"
	1494	" - core descriptor : %d bytes\n"
	1495	" - scheduler : %d bytes\n"
[683]	1496	" - socket descriptor : %d bytes\n"
[68]	1497	" - rpc fifo : %d bytes\n"
	1498	" - page descriptor : %d bytes\n"
[635]	1499	" - mapper descriptor : %d bytes\n"
	1500	" - vseg descriptor : %d bytes\n"
[68]	1501	" - ppm manager : %d bytes\n"
	1502	" - kcm manager : %d bytes\n"
	1503	" - vmm manager : %d bytes\n"
[635]	1504	" - vfs inode : %d bytes\n"
	1505	" - vfs dentry : %d bytes\n"
	1506	" - vfs file : %d bytes\n"
	1507	" - vfs context : %d bytes\n"
	1508	" - xhtab root : %d bytes\n"
[68]	1509	" - list item : %d bytes\n"
	1510	" - xlist item : %d bytes\n"
[564]	1511	" - busylock : %d bytes\n"
	1512	" - remote busylock : %d bytes\n"
	1513	" - queuelock : %d bytes\n"
	1514	" - remote queuelock : %d bytes\n"
[68]	1515	" - rwlock : %d bytes\n"
	1516	" - remote rwlock : %d bytes\n",
[564]	1517	sizeof( thread_t ),
	1518	sizeof( process_t ),
	1519	sizeof( cluster_t ),
	1520	sizeof( chdev_t ),
	1521	sizeof( core_t ),
	1522	sizeof( scheduler_t ),
[662]	1523	sizeof( socket_t ),
[564]	1524	sizeof( remote_fifo_t ),
	1525	sizeof( page_t ),
	1526	sizeof( mapper_t ),
[635]	1527	sizeof( vseg_t ),
[564]	1528	sizeof( ppm_t ),
	1529	sizeof( kcm_t ),
	1530	sizeof( vmm_t ),
[635]	1531	sizeof( vfs_inode_t ),
	1532	sizeof( vfs_dentry_t ),
	1533	sizeof( vfs_file_t ),
	1534	sizeof( vfs_ctx_t ),
	1535	sizeof( xhtab_t ),
[564]	1536	sizeof( list_entry_t ),
	1537	sizeof( xlist_entry_t ),
	1538	sizeof( busylock_t ),
	1539	sizeof( remote_busylock_t ),
	1540	sizeof( queuelock_t ),
	1541	sizeof( remote_queuelock_t ),
	1542	sizeof( rwlock_t ),
	1543	sizeof( remote_rwlock_t ));
[406]	1544	#endif
	1545
[683]	1546	// number of cycles per TICK (depends on the actual system clock frequency
	1547	uint32_t cycles_per_tick = cluster->sys_clk / CONFIG_SCHED_TICKS_PER_SECOND;
	1548
[398]	1549	// each core activates its private TICK IRQ
[683]	1550	dev_pic_enable_timer( cycles_per_tick );
[14]	1551
[610]	1552	/////////////////////////////////////////////////////////////////////////////////
	1553	if( core_lid == 0 ) xbarrier_wait( XPTR( 0 , &global_barrier ),
	1554	(info->x_size * info->y_size) );
	1555	barrier_wait( &local_barrier , info->cores_nr );
	1556	/////////////////////////////////////////////////////////////////////////////////
	1557
[635]	1558	#if DEBUG_KERNEL_INIT
[610]	1559	thread_t * this = CURRENT_THREAD;
	1560	printk("\n[%s] : thread[%x,%x] on core[%x,%d] jumps to thread_idle_func() / cycle %d\n",
	1561	__FUNCTION__ , this->process->pid, this->trdid,
	1562	local_cxy, core_lid, (uint32_t)hal_get_cycles() );
[440]	1563	#endif
	1564
[407]	1565	// each core jump to thread_idle_func
[50]	1566	thread_idle_func();
[14]	1567
[610]	1568	} // end kernel_init()
	1569

Note: See TracBrowser for help on using the repository browser.

Context Navigation

source: trunk/kernel/kern/kernel_init.c

Download in other formats: