1
2
3
4
5
6
7
8
9
10
11
12#define __KERNEL_SYSCALLS__
13
14#include <linux/config.h>
15#include <linux/proc_fs.h>
16#include <linux/unistd.h>
17#include <linux/ctype.h>
18#include <linux/delay.h>
19#include <linux/utsname.h>
20#include <linux/ioport.h>
21#include <linux/init.h>
22#include <linux/smp_lock.h>
23#include <linux/blk.h>
24#include <linux/hdreg.h>
25
26#include <asm/io.h>
27#include <asm/bugs.h>
28
29#ifdef CONFIG_PCI
30#include <linux/pci.h>
31#endif
32
33#ifdef CONFIG_DIO
34#include <linux/dio.h>
35#endif
36
37#ifdef CONFIG_ZORRO
38#include <linux/zorro.h>
39#endif
40
41#ifdef CONFIG_MTRR
42# include <asm/mtrr.h>
43#endif
44
45#ifdef CONFIG_APM
46#include <linux/apm_bios.h>
47#endif
48
49#ifdef CONFIG_DASD
50#include "../drivers/s390/block/dasd.h"
51#endif
52
53#ifdef CONFIG_MAC
54extern void nubus_init(void);
55#endif
56
57
58
59
60
61
62
63#if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6)
64#error sorry, your GCC is too old. It builds incorrect kernels.
65#endif
66
67extern char _stext, _etext;
68extern char *linux_banner;
69
70extern int console_loglevel;
71
72static int init(void *);
73extern int bdflush(void *);
74extern int kupdate(void *);
75extern int kswapd(void *);
76extern int kpiod(void *);
77extern void kswapd_setup(void);
78extern unsigned long init_IRQ( unsigned long);
79extern void init_modules(void);
80extern long console_init(long, long);
81extern void sock_init(void);
82extern void uidcache_init(void);
83extern void mca_init(void);
84extern void sbus_init(void);
85extern void ppc_init(void);
86extern void sysctl_init(void);
87extern void filescache_init(void);
88extern void signals_init(void);
89
90extern void device_setup(void);
91extern void binfmt_setup(void);
92extern void free_initmem(void);
93extern void filesystem_setup(void);
94
95#ifdef CONFIG_ARCH_ACORN
96extern void ecard_init(void);
97#endif
98
99extern void smp_setup(char *str, int *ints);
100#ifdef __i386__
101extern void ioapic_pirq_setup(char *str, int *ints);
102extern void ioapic_setup(char *str, int *ints);
103#endif
104extern void no_scroll(char *str, int *ints);
105extern void kbd_reset_setup(char *str, int *ints);
106extern void panic_setup(char *str, int *ints);
107extern void bmouse_setup(char *str, int *ints);
108extern void msmouse_setup(char *str, int *ints);
109extern void console_setup(char *str, int *ints);
110#ifdef CONFIG_PRINTER
111extern void lp_setup(char *str, int *ints);
112#endif
113#ifdef CONFIG_VIDEO_CPIA_PP
114extern void cpia_pp_setup(char *str, int *ints);
115#endif
116#ifdef CONFIG_JOY_AMIGA
117extern void js_am_setup(char *str, int *ints);
118#endif
119#ifdef CONFIG_JOY_ANALOG
120extern void js_an_setup(char *str, int *ints);
121#endif
122#ifdef CONFIG_JOY_ASSASSIN
123extern void js_as_setup(char *str, int *ints);
124#endif
125#ifdef CONFIG_JOY_CONSOLE
126extern void js_console_setup(char *str, int *ints);
127extern void js_console_setup_2(char *str, int *ints);
128extern void js_console_setup_3(char *str, int *ints);
129#endif
130#ifdef CONFIG_JOY_DB9
131extern void js_db9_setup(char *str, int *ints);
132extern void js_db9_setup_2(char *str, int *ints);
133extern void js_db9_setup_3(char *str, int *ints);
134#endif
135#ifdef CONFIG_JOY_TURBOGRAFX
136extern void js_tg_setup(char *str, int *ints);
137extern void js_tg_setup_2(char *str, int *ints);
138extern void js_tg_setup_3(char *str, int *ints);
139#endif
140#ifdef CONFIG_JOY_LIGHTNING
141extern void js_l4_setup(char *str, int *ints);
142#endif
143#ifdef CONFIG_JOY_PCI
144extern void js_pci_setup(char *str, int *ints);
145#endif
146extern void eth_setup(char *str, int *ints);
147#ifdef CONFIG_ARCNET_COM20020
148extern void com20020_setup(char *str, int *ints);
149#endif
150#ifdef CONFIG_ARCNET_RIM_I
151extern void arcrimi_setup(char *str, int *ints);
152#endif
153#ifdef CONFIG_CTC
154extern void ctc_setup(char *str, int *ints);
155#endif
156#ifdef CONFIG_IUCV
157extern void iucv_setup(char *str, int *ints);
158#endif
159#ifdef CONFIG_ARCNET_COM90xxIO
160extern void com90io_setup(char *str, int *ints);
161#endif
162#ifdef CONFIG_ARCNET_COM90xx
163extern void com90xx_setup(char *str, int *ints);
164#endif
165#ifdef CONFIG_DECNET
166extern void decnet_setup(char *str, int *ints);
167#endif
168#ifdef CONFIG_BLK_DEV_XD
169extern void xd_setup(char *str, int *ints);
170extern void xd_manual_geo_init(char *str, int *ints);
171#endif
172#ifdef CONFIG_BLK_DEV_IDE
173extern void ide_setup(char *);
174#endif
175#ifdef CONFIG_PARIDE_PD
176extern void pd_setup(char *str, int *ints);
177#endif
178#ifdef CONFIG_PARIDE_PF
179extern void pf_setup(char *str, int *ints);
180#endif
181#ifdef CONFIG_PARIDE_PT
182extern void pt_setup(char *str, int *ints);
183#endif
184#ifdef CONFIG_PARIDE_PG
185extern void pg_setup(char *str, int *ints);
186#endif
187#ifdef CONFIG_PARIDE_PCD
188extern void pcd_setup(char *str, int *ints);
189#endif
190#ifdef CONFIG_3215
191extern void con3215_setup(char *str, int *ints);
192#endif
193#ifdef CONFIG_3215
194extern void con3215_setup(char *str, int *ints);
195#endif
196#ifdef CONFIG_MDISK
197extern void mdisk_setup(char *str, int *ints);
198#endif
199#ifdef CONFIG_DASD
200extern void dasd_setup(char *str, int *ints);
201#endif
202extern void floppy_setup(char *str, int *ints);
203extern void st_setup(char *str, int *ints);
204extern void st0x_setup(char *str, int *ints);
205extern void advansys_setup(char *str, int *ints);
206extern void tmc8xx_setup(char *str, int *ints);
207extern void t128_setup(char *str, int *ints);
208extern void pas16_setup(char *str, int *ints);
209extern void generic_NCR5380_setup(char *str, int *intr);
210extern void generic_NCR53C400_setup(char *str, int *intr);
211extern void generic_NCR53C400A_setup(char *str, int *intr);
212extern void generic_DTC3181E_setup(char *str, int *intr);
213extern void aha152x_setup(char *str, int *ints);
214extern void aha1542_setup(char *str, int *ints);
215extern void gdth_setup(char *str, int *ints);
216extern void aic7xxx_setup(char *str, int *ints);
217extern void AM53C974_setup(char *str, int *ints);
218extern void BusLogic_Setup(char *str, int *ints);
219extern void ncr53c8xx_setup(char *str, int *ints);
220extern void sym53c8xx_setup(char *str, int *ints);
221extern void eata2x_setup(char *str, int *ints);
222extern void u14_34f_setup(char *str, int *ints);
223extern void fdomain_setup(char *str, int *ints);
224extern void ibmmca_scsi_setup(char *str, int *ints);
225extern void fd_mcs_setup(char *str, int *ints);
226extern void in2000_setup(char *str, int *ints);
227extern void NCR53c406a_setup(char *str, int *ints);
228extern void sym53c416_setup(char *str, int *ints);
229extern void wd7000_setup(char *str, int *ints);
230extern void dc390_setup(char* str, int *ints);
231extern void scsi_luns_setup(char *str, int *ints);
232extern void scsi_logging_setup(char *str, int *ints);
233extern void sound_setup(char *str, int *ints);
234extern void reboot_setup(char *str, int *ints);
235extern void video_setup(char *str, int *ints);
236#ifdef CONFIG_CDU31A
237extern void cdu31a_setup(char *str, int *ints);
238#endif CONFIG_CDU31A
239#ifdef CONFIG_BLK_DEV_PS2
240extern void ed_setup(char *str, int *ints);
241extern void tp720_setup(char *str, int *ints);
242#endif CONFIG_BLK_DEV_PS2
243#ifdef CONFIG_MCD
244extern void mcd_setup(char *str, int *ints);
245#endif CONFIG_MCD
246#ifdef CONFIG_MCDX
247extern void mcdx_setup(char *str, int *ints);
248#endif CONFIG_MCDX
249#ifdef CONFIG_SBPCD
250extern void sbpcd_setup(char *str, int *ints);
251#endif CONFIG_SBPCD
252#ifdef CONFIG_AZTCD
253extern void aztcd_setup(char *str, int *ints);
254#endif CONFIG_AZTCD
255#ifdef CONFIG_CDU535
256extern void sonycd535_setup(char *str, int *ints);
257#endif CONFIG_CDU535
258#ifdef CONFIG_GSCD
259extern void gscd_setup(char *str, int *ints);
260#endif CONFIG_GSCD
261#ifdef CONFIG_CM206
262extern void cm206_setup(char *str, int *ints);
263#endif CONFIG_CM206
264#ifdef CONFIG_OPTCD
265extern void optcd_setup(char *str, int *ints);
266#endif CONFIG_OPTCD
267#ifdef CONFIG_SJCD
268extern void sjcd_setup(char *str, int *ints);
269#endif CONFIG_SJCD
270#ifdef CONFIG_ISP16_CDI
271extern void isp16_setup(char *str, int *ints);
272#endif CONFIG_ISP16_CDI
273#ifdef CONFIG_BLK_DEV_RAM
274static void ramdisk_start_setup(char *str, int *ints);
275static void load_ramdisk(char *str, int *ints);
276static void prompt_ramdisk(char *str, int *ints);
277static void ramdisk_size(char *str, int *ints);
278#ifdef CONFIG_BLK_DEV_INITRD
279static void no_initrd(char *s,int *ints);
280#endif
281#endif CONFIG_BLK_DEV_RAM
282#ifdef CONFIG_ISDN_DRV_ICN
283extern void icn_setup(char *str, int *ints);
284#endif
285#ifdef CONFIG_ISDN_DRV_HISAX
286extern void HiSax_setup(char *str, int *ints);
287#endif
288#ifdef CONFIG_DIGIEPCA
289extern void epca_setup(char *str, int *ints);
290#endif
291#ifdef CONFIG_ISDN_DRV_PCBIT
292extern void pcbit_setup(char *str, int *ints);
293#endif
294
295#ifdef CONFIG_ATARIMOUSE
296extern void atari_mouse_setup (char *str, int *ints);
297#endif
298#ifdef CONFIG_DMASOUND
299extern void dmasound_setup (char *str, int *ints);
300#endif
301#ifdef CONFIG_ATARI_SCSI
302extern void atari_scsi_setup (char *str, int *ints);
303#endif
304extern void stram_swap_setup (char *str, int *ints);
305extern void wd33c93_setup (char *str, int *ints);
306extern void gvp11_setup (char *str, int *ints);
307extern void ncr53c7xx_setup (char *str, int *ints);
308extern void sim710_setup (char *str, int *ints);
309#ifdef CONFIG_MAC_SCSI
310extern void mac_scsi_setup (char *str, int *ints);
311#endif
312
313#ifdef CONFIG_CYCLADES
314extern void cy_setup(char *str, int *ints);
315#endif
316#ifdef CONFIG_DIGI
317extern void pcxx_setup(char *str, int *ints);
318#endif
319#ifdef CONFIG_RISCOM8
320extern void riscom8_setup(char *str, int *ints);
321#endif
322#ifdef CONFIG_SPECIALIX
323extern void specialix_setup(char *str, int *ints);
324#endif
325#ifdef CONFIG_DMASCC
326extern void dmascc_setup(char *str, int *ints);
327#endif
328#ifdef CONFIG_BAYCOM_PAR
329extern void baycom_par_setup(char *str, int *ints);
330#endif
331#ifdef CONFIG_BAYCOM_SER_FDX
332extern void baycom_ser_fdx_setup(char *str, int *ints);
333#endif
334#ifdef CONFIG_BAYCOM_SER_HDX
335extern void baycom_ser_hdx_setup(char *str, int *ints);
336#endif
337#ifdef CONFIG_SOUNDMODEM
338extern void sm_setup(char *str, int *ints);
339#endif
340#ifdef CONFIG_ADBMOUSE
341extern void adb_mouse_setup(char *str, int *ints);
342#endif
343#ifdef CONFIG_WDT
344extern void wdt_setup(char *str, int *ints);
345#endif
346#ifdef CONFIG_PARPORT
347extern void parport_setup(char *str, int *ints);
348#endif
349#ifdef CONFIG_PLIP
350extern void plip_setup(char *str, int *ints);
351#endif
352#ifdef CONFIG_HFMODEM
353extern void hfmodem_setup(char *str, int *ints);
354#endif
355#ifdef CONFIG_IP_PNP
356extern void ip_auto_config_setup(char *str, int *ints);
357#endif
358#ifdef CONFIG_ROOT_NFS
359extern void nfs_root_setup(char *str, int *ints);
360#endif
361#ifdef CONFIG_FTAPE
362extern void ftape_setup(char *str, int *ints);
363#endif
364#ifdef CONFIG_3215_CONSOLE
365extern int con3215_activate(void);
366#endif
367#ifdef CONFIG_MDA_CONSOLE
368extern void mdacon_setup(char *str, int *ints);
369#endif
370#ifdef CONFIG_LTPC
371extern void ltpc_setup(char *str, int *ints);
372#endif
373#ifdef CONFIG_BLK_CPQ_DA
374extern void cpqarray_setup(char *str, int *ints);
375#endif
376
377#if defined(CONFIG_SYSVIPC)
378extern void ipc_init(void);
379#endif
380#if defined(CONFIG_QUOTA)
381extern void dquot_init_hash(void);
382#endif
383
384#ifdef CONFIG_MD_BOOT
385extern void md_setup(char *str,int *ints) __init;
386#endif
387
388
389
390
391#define MAX_INIT_ARGS 8
392#define MAX_INIT_ENVS 8
393
394extern void time_init(void);
395
396static unsigned long memory_start = 0;
397static unsigned long memory_end = 0;
398
399int rows, cols;
400
401#ifdef CONFIG_BLK_DEV_RAM
402extern int rd_doload;
403extern int rd_prompt;
404extern int rd_size;
405extern int rd_image_start;
406#ifdef CONFIG_BLK_DEV_INITRD
407kdev_t real_root_dev;
408#endif
409#endif
410
411int root_mountflags = MS_RDONLY;
412char *execute_command = NULL;
413
414static char * argv_init[MAX_INIT_ARGS+2] = { "init", NULL, };
415static char * envp_init[MAX_INIT_ENVS+2] = { "HOME=/", "TERM=linux", NULL, };
416
417char *get_options(char *str, int *ints)
418{
419 char *cur = str;
420 int i=1;
421
422 while (cur && (*cur=='-' || isdigit(*cur)) && i <= 10) {
423 ints[i++] = simple_strtol(cur,NULL,0);
424 if ((cur = strchr(cur,',')) != NULL)
425 cur++;
426 }
427 ints[0] = i-1;
428 return(cur);
429}
430
431static void __init profile_setup(char *str, int *ints)
432{
433 if (ints[0] > 0)
434 prof_shift = (unsigned long) ints[1];
435 else
436 prof_shift = 2;
437}
438
439
440static struct dev_name_struct {
441 const char *name;
442 const int num;
443} root_dev_names[] __initdata = {
444#ifdef CONFIG_ROOT_NFS
445 { "nfs", 0x00ff },
446#endif
447#ifdef CONFIG_BLK_DEV_LOOP
448 { "loop", 0x0700 },
449#endif
450#ifdef CONFIG_BLK_DEV_IDE
451 { "hda", 0x0300 },
452 { "hdb", 0x0340 },
453 { "hdc", 0x1600 },
454 { "hdd", 0x1640 },
455 { "hde", 0x2100 },
456 { "hdf", 0x2140 },
457 { "hdg", 0x2200 },
458 { "hdh", 0x2240 },
459 { "hdi", 0x3800 },
460 { "hdj", 0x3840 },
461 { "hdk", 0x3900 },
462 { "hdl", 0x3940 },
463#endif
464#ifdef CONFIG_BLK_DEV_SD
465 { "sda", 0x0800 },
466 { "sdb", 0x0810 },
467 { "sdc", 0x0820 },
468 { "sdd", 0x0830 },
469 { "sde", 0x0840 },
470 { "sdf", 0x0850 },
471 { "sdg", 0x0860 },
472 { "sdh", 0x0870 },
473 { "sdi", 0x0880 },
474 { "sdj", 0x0890 },
475 { "sdk", 0x08a0 },
476 { "sdl", 0x08b0 },
477 { "sdm", 0x08c0 },
478 { "sdn", 0x08d0 },
479 { "sdo", 0x08e0 },
480 { "sdp", 0x08f0 },
481#endif
482#ifdef CONFIG_BLK_DEV_DAC960
483 { "rd/c0d0p",0x3000 },
484 { "rd/c0d1p",0x3008 },
485 { "rd/c0d2p",0x3010 },
486 { "rd/c0d3p",0x3018 },
487 { "rd/c0d4p",0x3020 },
488 { "rd/c0d5p",0x3028 },
489 { "rd/c0d6p",0x3030 },
490 { "rd/c0d7p",0x3038 },
491 { "rd/c0d8p",0x3040 },
492 { "rd/c0d9p",0x3048 },
493 { "rd/c0d10p",0x3050 },
494 { "rd/c0d11p",0x3058 },
495 { "rd/c0d12p",0x3060 },
496 { "rd/c0d13p",0x3068 },
497 { "rd/c0d14p",0x3070 },
498 { "rd/c0d15p",0x3078 },
499#endif
500#if defined(CONFIG_BLK_CPQ_DA) || defined(CONFIG_BLK_CPQ_DA_MODULE)
501 { "ida/c0d0p",0x4800 },
502 { "ida/c0d1p",0x4810 },
503 { "ida/c0d2p",0x4820 },
504 { "ida/c0d3p",0x4830 },
505 { "ida/c0d4p",0x4840 },
506 { "ida/c0d5p",0x4850 },
507 { "ida/c0d6p",0x4860 },
508 { "ida/c0d7p",0x4870 },
509 { "ida/c0d8p",0x4880 },
510 { "ida/c0d9p",0x4890 },
511 { "ida/c0d10p",0x48A0 },
512 { "ida/c0d11p",0x48B0 },
513 { "ida/c0d12p",0x48C0 },
514 { "ida/c0d13p",0x48D0 },
515 { "ida/c0d14p",0x48E0 },
516 { "ida/c0d15p",0x48F0 },
517#endif
518#ifdef CONFIG_ATARI_ACSI
519 { "ada", 0x1c00 },
520 { "adb", 0x1c10 },
521 { "adc", 0x1c20 },
522 { "add", 0x1c30 },
523 { "ade", 0x1c40 },
524#endif
525#ifdef CONFIG_BLK_DEV_FD
526 { "fd", 0x0200 },
527#endif
528#ifdef CONFIG_MD_BOOT
529 { "md", 0x0900 },
530#endif
531#ifdef CONFIG_BLK_DEV_XD
532 { "xda", 0x0d00 },
533 { "xdb", 0x0d40 },
534#endif
535#ifdef CONFIG_BLK_DEV_RAM
536 { "ram", 0x0100 },
537#endif
538#ifdef CONFIG_BLK_DEV_SR
539 { "scd", 0x0b00 },
540#endif
541#ifdef CONFIG_MCD
542 { "mcd", 0x1700 },
543#endif
544#ifdef CONFIG_CDU535
545 { "cdu535", 0x1800 },
546 { "sonycd", 0x1800 },
547#endif
548#ifdef CONFIG_AZTCD
549 { "aztcd", 0x1d00 },
550#endif
551#ifdef CONFIG_CM206
552 { "cm206cd", 0x2000 },
553#endif
554#ifdef CONFIG_GSCD
555 { "gscd", 0x1000 },
556#endif
557#ifdef CONFIG_SBPCD
558 { "sbpcd", 0x1900 },
559#endif
560#ifdef CONFIG_BLK_DEV_PS2
561 { "eda", 0x2400 },
562 { "edb", 0x2440 },
563#endif
564#ifdef CONFIG_PARIDE_PD
565 { "pda", 0x2d00 },
566 { "pdb", 0x2d10 },
567 { "pdc", 0x2d20 },
568 { "pdd", 0x2d30 },
569#endif
570#ifdef CONFIG_PARIDE_PCD
571 { "pcd", 0x2e00 },
572#endif
573#ifdef CONFIG_PARIDE_PF
574 { "pf", 0x2f00 },
575#endif
576#if CONFIG_APBLOCK
577 { "apblock", APBLOCK_MAJOR << 8},
578#endif
579#if CONFIG_DDV
580 { "ddv", DDV_MAJOR << 8},
581#endif
582#ifdef CONFIG_MDISK
583 { "mnda", (MDISK_MAJOR << MINORBITS)},
584 { "mndb", (MDISK_MAJOR << MINORBITS) + 1},
585 { "mndc", (MDISK_MAJOR << MINORBITS) + 2},
586 { "mndd", (MDISK_MAJOR << MINORBITS) + 3},
587 { "mnde", (MDISK_MAJOR << MINORBITS) + 4},
588 { "mndf", (MDISK_MAJOR << MINORBITS) + 5},
589 { "mndg", (MDISK_MAJOR << MINORBITS) + 6},
590 { "mndh", (MDISK_MAJOR << MINORBITS) + 7},
591#endif
592#ifdef CONFIG_DASD
593 { "dasda", (DASD_MAJOR << MINORBITS) },
594 { "dasdb", (DASD_MAJOR << MINORBITS) + (1 << 2) },
595 { "dasdc", (DASD_MAJOR << MINORBITS) + (2 << 2) },
596 { "dasdd", (DASD_MAJOR << MINORBITS) + (3 << 2) },
597 { "dasde", (DASD_MAJOR << MINORBITS) + (4 << 2) },
598 { "dasdf", (DASD_MAJOR << MINORBITS) + (5 << 2) },
599 { "dasdg", (DASD_MAJOR << MINORBITS) + (6 << 2) },
600 { "dasdh", (DASD_MAJOR << MINORBITS) + (7 << 2) },
601#endif
602 { NULL, 0 }
603};
604
605kdev_t __init name_to_kdev_t(char *line)
606{
607 int base = 0;
608 if (strncmp(line,"/dev/",5) == 0) {
609 struct dev_name_struct *dev = root_dev_names;
610 line += 5;
611 do {
612 int len = strlen(dev->name);
613 if (strncmp(line,dev->name,len) == 0) {
614 line += len;
615 base = dev->num;
616 break;
617 }
618 dev++;
619 } while (dev->name);
620 }
621 return to_kdev_t(base + simple_strtoul(line,NULL,base?10:16));
622}
623
624static void __init root_dev_setup(char *line, int *num)
625{
626 ROOT_DEV = name_to_kdev_t(line);
627}
628
629
630
631
632
633
634
635
636struct kernel_param {
637 const char *str;
638 void (*setup_func)(char *, int *);
639};
640
641static struct kernel_param cooked_params[] __initdata = {
642
643#ifndef CONFIG_KERNEL_PNP_RESOURCE
644 { "reserve=", reserve_setup },
645#else
646 { "reserve=", pnp_reserve_setup },
647#endif
648 { "profile=", profile_setup },
649#ifdef __SMP__
650 { "nosmp", smp_setup },
651 { "maxcpus=", smp_setup },
652#ifdef CONFIG_X86_IO_APIC
653 { "noapic", ioapic_setup },
654 { "pirq=", ioapic_pirq_setup },
655#endif
656#endif
657#ifdef CONFIG_BLK_DEV_RAM
658 { "ramdisk_start=", ramdisk_start_setup },
659 { "load_ramdisk=", load_ramdisk },
660 { "prompt_ramdisk=", prompt_ramdisk },
661 { "ramdisk=", ramdisk_size },
662 { "ramdisk_size=", ramdisk_size },
663#ifdef CONFIG_BLK_DEV_INITRD
664 { "noinitrd", no_initrd },
665#endif
666
667#ifdef CONFIG_CTC
668 { "ctc=", ctc_setup } ,
669#endif
670#ifdef CONFIG_IUCV
671 { "iucv=", iucv_setup } ,
672#endif
673
674#endif
675
676#ifdef CONFIG_FB
677 { "video=", video_setup },
678#endif
679 { "panic=", panic_setup },
680 { "console=", console_setup },
681#ifdef CONFIG_VGA_CONSOLE
682 { "no-scroll", no_scroll },
683#endif
684#ifdef CONFIG_MDA_CONSOLE
685 { "mdacon=", mdacon_setup },
686#endif
687#ifdef CONFIG_VT
688 { "kbd-reset", kbd_reset_setup },
689#endif
690#ifdef CONFIG_BUGi386
691 { "no-hlt", no_halt },
692 { "no387", no_387 },
693 { "reboot=", reboot_setup },
694#endif
695#ifdef CONFIG_MCA
696 { "mca-pentium", mca_pentium },
697#endif
698#ifdef CONFIG_INET
699 { "ether=", eth_setup },
700#endif
701#ifdef CONFIG_ARCNET_COM20020
702 { "com20020=", com20020_setup },
703#endif
704#ifdef CONFIG_ARCNET_RIM_I
705 { "arcrimi=", arcrimi_setup },
706#endif
707#ifdef CONFIG_ARCNET_COM90xxIO
708 { "com90io=", com90io_setup },
709#endif
710#ifdef CONFIG_ARCNET_COM90xx
711 { "com90xx=", com90xx_setup },
712#endif
713#ifdef CONFIG_DECNET
714 { "decnet=", decnet_setup },
715#endif
716#ifdef CONFIG_PRINTER
717 { "lp=", lp_setup },
718#endif
719#ifdef CONFIG_VIDEO_CPIA_PP
720 { "cpia_pp=", cpia_pp_setup },
721#endif
722#ifdef CONFIG_JOY_AMIGA
723 { "js_am=", js_am_setup },
724#endif
725#ifdef CONFIG_JOY_ANALOG
726 { "js_an=", js_an_setup },
727#endif
728#ifdef CONFIG_JOY_ASSASSIN
729 { "js_as=", js_as_setup },
730#endif
731#ifdef CONFIG_JOY_CONSOLE
732 { "js_console=", js_console_setup },
733 { "js_console2=", js_console_setup_2 },
734 { "js_console3=", js_console_setup_3 },
735#endif
736#ifdef CONFIG_JOY_DB9
737 { "js_db9=", js_db9_setup },
738 { "js_db9_2=", js_db9_setup_2 },
739 { "js_db9_3=", js_db9_setup_3 },
740#endif
741#ifdef CONFIG_JOY_TURBOGRAFX
742 { "js_tg=", js_tg_setup },
743 { "js_tg_2=", js_tg_setup_2 },
744 { "js_tg_3=", js_tg_setup_3 },
745#endif
746#ifdef CONFIG_JOY_LIGHTNING
747 { "js_l4=", js_l4_setup },
748#endif
749#ifdef CONFIG_JOY_PCI
750 { "js_pci=", js_pci_setup },
751#endif
752#ifdef CONFIG_SCSI
753 { "max_scsi_luns=", scsi_luns_setup },
754 { "scsi_logging=", scsi_logging_setup },
755#endif
756#ifdef CONFIG_SCSI_ADVANSYS
757 { "advansys=", advansys_setup },
758#endif
759#if defined(CONFIG_BLK_DEV_HD)
760 { "hd=", hd_setup },
761#endif
762#ifdef CONFIG_CHR_DEV_ST
763 { "st=", st_setup },
764#endif
765#ifdef CONFIG_BUSMOUSE
766 { "bmouse=", bmouse_setup },
767#endif
768#ifdef CONFIG_MS_BUSMOUSE
769 { "msmouse=", msmouse_setup },
770#endif
771#ifdef CONFIG_SCSI_SEAGATE
772 { "st0x=", st0x_setup },
773 { "tmc8xx=", tmc8xx_setup },
774#endif
775#ifdef CONFIG_SCSI_T128
776 { "t128=", t128_setup },
777#endif
778#ifdef CONFIG_SCSI_PAS16
779 { "pas16=", pas16_setup },
780#endif
781#ifdef CONFIG_SCSI_GENERIC_NCR5380
782 { "ncr5380=", generic_NCR5380_setup },
783 { "ncr53c400=", generic_NCR53C400_setup },
784 { "ncr53c400a=", generic_NCR53C400A_setup },
785 { "dtc3181e=", generic_DTC3181E_setup },
786#endif
787#ifdef CONFIG_SCSI_AHA152X
788 { "aha152x=", aha152x_setup},
789#endif
790#ifdef CONFIG_SCSI_AHA1542
791 { "aha1542=", aha1542_setup},
792#endif
793#ifdef CONFIG_SCSI_GDTH
794 { "gdth=", gdth_setup},
795#endif
796#ifdef CONFIG_SCSI_AIC7XXX
797 { "aic7xxx=", aic7xxx_setup},
798#endif
799#ifdef CONFIG_SCSI_BUSLOGIC
800 { "BusLogic=", BusLogic_Setup},
801#endif
802#ifdef CONFIG_SCSI_NCR53C8XX
803 { "ncr53c8xx=", ncr53c8xx_setup},
804#endif
805#ifdef CONFIG_SCSI_SYM53C8XX
806 { "sym53c8xx=", sym53c8xx_setup},
807#endif
808#ifdef CONFIG_SCSI_EATA
809 { "eata=", eata2x_setup},
810#endif
811#ifdef CONFIG_SCSI_U14_34F
812 { "u14-34f=", u14_34f_setup},
813#endif
814#ifdef CONFIG_SCSI_AM53C974
815 { "AM53C974=", AM53C974_setup},
816#endif
817#ifdef CONFIG_SCSI_NCR53C406A
818 { "ncr53c406a=", NCR53c406a_setup},
819#endif
820#ifdef CONFIG_SCSI_SYM53C416
821 { "sym53c416=", sym53c416_setup},
822#endif
823#ifdef CONFIG_SCSI_FUTURE_DOMAIN
824 { "fdomain=", fdomain_setup},
825#endif
826#ifdef CONFIG_SCSI_IN2000
827 { "in2000=", in2000_setup},
828#endif
829#ifdef CONFIG_SCSI_7000FASST
830 { "wd7000=", wd7000_setup},
831#endif
832#ifdef CONFIG_SCSI_IBMMCA
833 { "ibmmcascsi=", ibmmca_scsi_setup },
834#endif
835#ifdef CONFIG_SCSI_FD_MCS
836 { "fd_mcs=", fd_mcs_setup },
837#endif
838#if defined(CONFIG_SCSI_DC390T) && ! defined(CONFIG_SCSI_DC390T_NOGENSUPP)
839 { "tmscsim=", dc390_setup },
840#endif
841#ifdef CONFIG_BLK_DEV_XD
842 { "xd=", xd_setup },
843 { "xd_geo=", xd_manual_geo_init },
844#endif
845#if defined(CONFIG_BLK_DEV_FD) || defined(CONFIG_AMIGA_FLOPPY) || defined(CONFIG_ATARI_FLOPPY)
846 { "floppy=", floppy_setup },
847#endif
848#ifdef CONFIG_BLK_DEV_PS2
849 { "eda=", ed_setup },
850 { "edb=", ed_setup },
851 { "tp720=", tp720_setup },
852#endif
853#ifdef CONFIG_CDU31A
854 { "cdu31a=", cdu31a_setup },
855#endif CONFIG_CDU31A
856#ifdef CONFIG_MCD
857 { "mcd=", mcd_setup },
858#endif CONFIG_MCD
859#ifdef CONFIG_MCDX
860 { "mcdx=", mcdx_setup },
861#endif CONFIG_MCDX
862#ifdef CONFIG_SBPCD
863 { "sbpcd=", sbpcd_setup },
864#endif CONFIG_SBPCD
865#ifdef CONFIG_AZTCD
866 { "aztcd=", aztcd_setup },
867#endif CONFIG_AZTCD
868#ifdef CONFIG_CDU535
869 { "sonycd535=", sonycd535_setup },
870#endif CONFIG_CDU535
871#ifdef CONFIG_GSCD
872 { "gscd=", gscd_setup },
873#endif CONFIG_GSCD
874#ifdef CONFIG_CM206
875 { "cm206=", cm206_setup },
876#endif CONFIG_CM206
877#ifdef CONFIG_OPTCD
878 { "optcd=", optcd_setup },
879#endif CONFIG_OPTCD
880#ifdef CONFIG_SJCD
881 { "sjcd=", sjcd_setup },
882#endif CONFIG_SJCD
883#ifdef CONFIG_ISP16_CDI
884 { "isp16=", isp16_setup },
885#endif CONFIG_ISP16_CDI
886#ifdef CONFIG_SOUND_OSS
887 { "sound=", sound_setup },
888#endif
889#ifdef CONFIG_ISDN_DRV_ICN
890 { "icn=", icn_setup },
891#endif
892#ifdef CONFIG_ISDN_DRV_HISAX
893 { "hisax=", HiSax_setup },
894 { "HiSax=", HiSax_setup },
895#endif
896#ifdef CONFIG_ISDN_DRV_PCBIT
897 { "pcbit=", pcbit_setup },
898#endif
899#ifdef CONFIG_ATARIMOUSE
900 { "atamouse=", atari_mouse_setup },
901#endif
902#ifdef CONFIG_DMASOUND
903 { "dmasound=", dmasound_setup },
904#endif
905#ifdef CONFIG_ATARI_SCSI
906 { "atascsi=", atari_scsi_setup },
907#endif
908#ifdef CONFIG_STRAM_SWAP
909 { "stram_swap=", stram_swap_setup },
910#endif
911#if defined(CONFIG_A4000T_SCSI) || defined(CONFIG_WARPENGINE_SCSI) \
912 || defined(CONFIG_A4091_SCSI) || defined(CONFIG_MVME16x_SCSI) \
913 || defined(CONFIG_BVME6000_SCSI) \
914 || defined(CONFIG_BLZ603EPLUS_SCSI)
915 { "53c7xx=", ncr53c7xx_setup },
916#endif
917#if defined(CONFIG_SCSI_SIM710)
918 { "sim710=", sim710_setup },
919#endif
920#if defined(CONFIG_A3000_SCSI) || defined(CONFIG_A2091_SCSI) \
921 || defined(CONFIG_GVP11_SCSI)
922 { "wd33c93=", wd33c93_setup },
923#endif
924#if defined(CONFIG_GVP11_SCSI)
925 { "gvp11=", gvp11_setup },
926#endif
927#ifdef CONFIG_MAC_SCSI
928 { "mac5380=", mac_scsi_setup },
929#endif
930#ifdef CONFIG_CYCLADES
931 { "cyclades=", cy_setup },
932#endif
933#ifdef CONFIG_DIGI
934 { "digi=", pcxx_setup },
935#endif
936#ifdef CONFIG_DIGIEPCA
937 { "digiepca=", epca_setup },
938#endif
939#ifdef CONFIG_RISCOM8
940 { "riscom8=", riscom8_setup },
941#endif
942#ifdef CONFIG_DMASCC
943 { "dmascc=", dmascc_setup },
944#endif
945#ifdef CONFIG_SPECIALIX
946 { "specialix=", specialix_setup },
947#endif
948#ifdef CONFIG_BAYCOM_PAR
949 { "baycom_par=", baycom_par_setup },
950#endif
951#ifdef CONFIG_BAYCOM_SER_FDX
952 { "baycom_ser_fdx=", baycom_ser_fdx_setup },
953#endif
954#ifdef CONFIG_BAYCOM_SER_HDX
955 { "baycom_ser_hdx=", baycom_ser_hdx_setup },
956#endif
957#ifdef CONFIG_SOUNDMODEM
958 { "soundmodem=", sm_setup },
959#endif
960#ifdef CONFIG_WDT
961 { "wdt=", wdt_setup },
962#endif
963#ifdef CONFIG_PARPORT
964 { "parport=", parport_setup },
965#endif
966#ifdef CONFIG_PLIP
967 { "plip=", plip_setup },
968#endif
969#ifdef CONFIG_HFMODEM
970 { "hfmodem=", hfmodem_setup },
971#endif
972#ifdef CONFIG_FTAPE
973 { "ftape=", ftape_setup},
974#endif
975#ifdef CONFIG_MD_BOOT
976 { "md=", md_setup},
977#endif
978#ifdef CONFIG_ADBMOUSE
979 { "adb_buttons=", adb_mouse_setup },
980#endif
981#ifdef CONFIG_LTPC
982 { "ltpc=", ltpc_setup },
983#endif
984#ifdef CONFIG_BLK_CPQ_DA
985 { "smart2=", cpqarray_setup },
986#endif
987 { 0, 0 }
988};
989
990static struct kernel_param raw_params[] __initdata = {
991 { "root=", root_dev_setup },
992#ifdef CONFIG_ROOT_NFS
993 { "nfsroot=", nfs_root_setup },
994 { "nfsaddrs=", ip_auto_config_setup },
995#endif
996#ifdef CONFIG_IP_PNP
997 { "ip=", ip_auto_config_setup },
998#endif
999#ifdef CONFIG_PCI
1000 { "pci=", pci_setup },
1001#endif
1002#ifdef CONFIG_PARIDE_PD
1003 { "pd.", pd_setup },
1004#endif
1005#ifdef CONFIG_PARIDE_PCD
1006 { "pcd.", pcd_setup },
1007#endif
1008#ifdef CONFIG_PARIDE_PF
1009 { "pf.", pf_setup },
1010#endif
1011#ifdef CONFIG_PARIDE_PT
1012 { "pt.", pt_setup },
1013#endif
1014#ifdef CONFIG_PARIDE_PG
1015 { "pg.", pg_setup },
1016#endif
1017#ifdef CONFIG_APM
1018 { "apm=", apm_setup },
1019#endif
1020#ifdef CONFIG_3215
1021 { "condev=", con3215_setup },
1022#endif
1023#ifdef CONFIG_3215
1024 { "condev=", con3215_setup },
1025#endif
1026#ifdef CONFIG_MDISK
1027 { "mdisk=", mdisk_setup },
1028#endif
1029#ifdef CONFIG_DASD
1030 { "dasd=", dasd_setup },
1031#endif
1032 { 0, 0 }
1033};
1034
1035#ifdef CONFIG_BLK_DEV_RAM
1036static void __init ramdisk_start_setup(char *str, int *ints)
1037{
1038 if (ints[0] > 0 && ints[1] >= 0)
1039 rd_image_start = ints[1];
1040}
1041
1042static void __init load_ramdisk(char *str, int *ints)
1043{
1044 if (ints[0] > 0 && ints[1] >= 0)
1045 rd_doload = ints[1] & 3;
1046}
1047
1048static void __init prompt_ramdisk(char *str, int *ints)
1049{
1050 if (ints[0] > 0 && ints[1] >= 0)
1051 rd_prompt = ints[1] & 1;
1052}
1053
1054static void __init ramdisk_size(char *str, int *ints)
1055{
1056 if (ints[0] > 0 && ints[1] >= 0)
1057 rd_size = ints[1];
1058}
1059#endif
1060
1061static int __init checksetup(char *line)
1062{
1063 int i, ints[11];
1064
1065#ifdef CONFIG_BLK_DEV_IDE
1066
1067 if (!strncmp(line,"ide",3) || (!strncmp(line,"hd",2) && line[2] != '=')) {
1068 ide_setup(line);
1069 return 1;
1070 }
1071#endif
1072 for (i=0; raw_params[i].str; i++) {
1073 int n = strlen(raw_params[i].str);
1074 if (!strncmp(line,raw_params[i].str,n)) {
1075 raw_params[i].setup_func(line+n, NULL);
1076 return 1;
1077 }
1078 }
1079 for (i=0; cooked_params[i].str; i++) {
1080 int n = strlen(cooked_params[i].str);
1081 if (!strncmp(line,cooked_params[i].str,n)) {
1082 cooked_params[i].setup_func(get_options(line+n, ints), ints);
1083 return 1;
1084 }
1085 }
1086 return 0;
1087}
1088
1089
1090
1091unsigned long loops_per_sec = (1<<12);
1092
1093
1094
1095
1096#define LPS_PREC 8
1097
1098void __init calibrate_delay(void)
1099{
1100 unsigned long ticks, loopbit;
1101 int lps_precision = LPS_PREC;
1102
1103 loops_per_sec = (1<<12);
1104
1105 printk("Calibrating delay loop... ");
1106 while (loops_per_sec <<= 1) {
1107
1108 ticks = jiffies;
1109 while (ticks == jiffies)
1110 ;
1111
1112 ticks = jiffies;
1113 __delay(loops_per_sec);
1114 ticks = jiffies - ticks;
1115 if (ticks)
1116 break;
1117 }
1118
1119
1120
1121 loops_per_sec >>= 1;
1122 loopbit = loops_per_sec;
1123 while ( lps_precision-- && (loopbit >>= 1) ) {
1124 loops_per_sec |= loopbit;
1125 ticks = jiffies;
1126 while (ticks == jiffies);
1127 ticks = jiffies;
1128 __delay(loops_per_sec);
1129 if (jiffies != ticks)
1130 loops_per_sec &= ~loopbit;
1131 }
1132
1133
1134 loops_per_sec *= HZ;
1135
1136 printk("%lu.%02lu BogoMIPS\n",
1137 (loops_per_sec+2500)/500000,
1138 ((loops_per_sec+2500)/5000) % 100);
1139}
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150static void __init parse_options(char *line)
1151{
1152 char *next;
1153 int args, envs;
1154
1155 if (!*line)
1156 return;
1157 args = 0;
1158 envs = 1;
1159 next = line;
1160 while ((line = next) != NULL) {
1161 if ((next = strchr(line,' ')) != NULL)
1162 *next++ = 0;
1163
1164
1165
1166 if (!strcmp(line,"ro")) {
1167 root_mountflags |= MS_RDONLY;
1168 continue;
1169 }
1170 if (!strcmp(line,"rw")) {
1171 root_mountflags &= ~MS_RDONLY;
1172 continue;
1173 }
1174 if (!strcmp(line,"debug")) {
1175 console_loglevel = 10;
1176 continue;
1177 }
1178 if (!strncmp(line,"init=",5)) {
1179 line += 5;
1180 execute_command = line;
1181
1182
1183
1184
1185
1186 args = 0;
1187 continue;
1188 }
1189 if (checksetup(line))
1190 continue;
1191
1192
1193
1194
1195
1196 if (strchr(line,'=')) {
1197 if (envs >= MAX_INIT_ENVS)
1198 break;
1199 envp_init[++envs] = line;
1200 } else {
1201 if (args >= MAX_INIT_ARGS)
1202 break;
1203 argv_init[++args] = line;
1204 }
1205 }
1206 argv_init[args+1] = NULL;
1207 envp_init[envs+1] = NULL;
1208}
1209
1210
1211extern void setup_arch(char **, unsigned long *, unsigned long *);
1212
1213#ifndef __SMP__
1214
1215
1216
1217
1218
1219int cpu_idle(void *unused)
1220{
1221 for(;;)
1222 idle();
1223}
1224
1225#define smp_init() do { } while (0)
1226
1227#else
1228
1229
1230
1231
1232
1233extern int cpu_idle(void * unused);
1234
1235
1236static void __init smp_init(void)
1237{
1238
1239 smp_boot_cpus();
1240 smp_threads_ready=1;
1241 smp_commence();
1242}
1243
1244#endif
1245
1246extern void initialize_secondary(void);
1247
1248
1249
1250
1251
1252asmlinkage void __init start_kernel(void)
1253{
1254 char * command_line;
1255
1256#ifdef __SMP__
1257 static int boot_cpu = 1;
1258
1259 if (!boot_cpu)
1260 initialize_secondary();
1261 boot_cpu = 0;
1262#endif
1263
1264
1265
1266
1267
1268 printk(linux_banner);
1269 setup_arch(&command_line, &memory_start, &memory_end);
1270 memory_start = paging_init(memory_start,memory_end);
1271 trap_init();
1272 memory_start = init_IRQ( memory_start );
1273 sched_init();
1274 time_init();
1275 parse_options(command_line);
1276
1277
1278
1279
1280
1281
1282 memory_start = console_init(memory_start,memory_end);
1283#ifdef CONFIG_MODULES
1284 init_modules();
1285#endif
1286 if (prof_shift) {
1287 prof_buffer = (unsigned int *) memory_start;
1288
1289 prof_len = (unsigned long) &_etext - (unsigned long) &_stext;
1290 prof_len >>= prof_shift;
1291 memory_start += prof_len * sizeof(unsigned int);
1292 memset(prof_buffer, 0, prof_len * sizeof(unsigned int));
1293 }
1294
1295 memory_start = kmem_cache_init(memory_start, memory_end);
1296 sti();
1297 calibrate_delay();
1298#ifdef CONFIG_BLK_DEV_INITRD
1299 if (initrd_start && !initrd_below_start_ok && initrd_start < memory_start) {
1300 printk(KERN_CRIT "initrd overwritten (0x%08lx < 0x%08lx) - "
1301 "disabling it.\n",initrd_start,memory_start);
1302 initrd_start = 0;
1303 }
1304#endif
1305 mem_init(memory_start,memory_end);
1306 kmem_cache_sizes_init();
1307#ifdef CONFIG_3215_CONSOLE
1308 con3215_activate();
1309#endif
1310#ifdef CONFIG_PROC_FS
1311 proc_root_init();
1312#endif
1313 uidcache_init();
1314 filescache_init();
1315 dcache_init();
1316 vma_init();
1317 buffer_init(memory_end-memory_start);
1318 page_cache_init(memory_end-memory_start);
1319 signals_init();
1320 inode_init();
1321 file_table_init();
1322#if defined(CONFIG_SYSVIPC)
1323 ipc_init();
1324#endif
1325#if defined(CONFIG_QUOTA)
1326 dquot_init_hash();
1327#endif
1328 check_bugs();
1329 printk("POSIX conformance testing by UNIFIX\n");
1330
1331
1332
1333
1334
1335
1336 smp_init();
1337 kernel_thread(init, NULL, CLONE_FS | CLONE_FILES | CLONE_SIGHAND);
1338 current->need_resched = 1;
1339 cpu_idle(NULL);
1340}
1341
1342#ifdef CONFIG_BLK_DEV_INITRD
1343static int do_linuxrc(void * shell)
1344{
1345 static char *argv[] = { "linuxrc", NULL, };
1346
1347 close(0);close(1);close(2);
1348 setsid();
1349 (void) open("/dev/console",O_RDWR,0);
1350 (void) dup(0);
1351 (void) dup(0);
1352 return execve(shell, argv, envp_init);
1353}
1354
1355static void __init no_initrd(char *s,int *ints)
1356{
1357 mount_initrd = 0;
1358}
1359#endif
1360
1361struct task_struct *child_reaper = &init_task;
1362
1363
1364
1365
1366
1367
1368
1369
1370static void __init do_basic_setup(void)
1371{
1372#ifdef CONFIG_BLK_DEV_INITRD
1373 int real_root_mountflags;
1374#endif
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384 child_reaper = current;
1385
1386#if defined(CONFIG_MTRR)
1387
1388
1389
1390
1391
1392 mtrr_init();
1393#endif
1394
1395#ifdef CONFIG_SYSCTL
1396 sysctl_init();
1397#endif
1398
1399
1400
1401
1402
1403#ifdef CONFIG_PCI
1404 pci_init();
1405#endif
1406#ifdef CONFIG_SBUS
1407 sbus_init();
1408#endif
1409#if defined(CONFIG_PPC)
1410 ppc_init();
1411#endif
1412#ifdef CONFIG_MCA
1413 mca_init();
1414#endif
1415#ifdef CONFIG_ARCH_ACORN
1416 ecard_init();
1417#endif
1418#ifdef CONFIG_ZORRO
1419 zorro_init();
1420#endif
1421#ifdef CONFIG_DIO
1422 dio_init();
1423#endif
1424#ifdef CONFIG_MAC
1425 nubus_init();
1426#endif
1427
1428
1429 sock_init();
1430
1431
1432 kernel_thread(bdflush, NULL, CLONE_FS | CLONE_FILES | CLONE_SIGHAND);
1433 kernel_thread(kupdate, NULL, CLONE_FS | CLONE_FILES | CLONE_SIGHAND);
1434
1435 kswapd_setup();
1436 kernel_thread(kpiod, NULL, CLONE_FS | CLONE_FILES | CLONE_SIGHAND);
1437 kernel_thread(kswapd, NULL, CLONE_FS | CLONE_FILES | CLONE_SIGHAND);
1438
1439#if CONFIG_AP1000
1440
1441 {
1442 extern int asyncd(void *);
1443 kernel_thread(asyncd, NULL, CLONE_FS | CLONE_FILES | CLONE_SIGHAND);
1444 }
1445#endif
1446
1447#ifdef CONFIG_BLK_DEV_INITRD
1448
1449 real_root_dev = ROOT_DEV;
1450 real_root_mountflags = root_mountflags;
1451 if (initrd_start && mount_initrd) root_mountflags &= ~MS_RDONLY;
1452 else mount_initrd =0;
1453#endif
1454
1455
1456 device_setup();
1457
1458
1459 binfmt_setup();
1460
1461
1462 filesystem_setup();
1463
1464#ifdef CONFIG_IRDA
1465 irda_device_init();
1466#endif
1467
1468
1469 mount_root();
1470
1471#ifdef CONFIG_BLK_DEV_INITRD
1472 root_mountflags = real_root_mountflags;
1473 if (mount_initrd && ROOT_DEV != real_root_dev
1474 && MAJOR(ROOT_DEV) == RAMDISK_MAJOR && MINOR(ROOT_DEV) == 0) {
1475 int error;
1476 int i, pid;
1477
1478 pid = kernel_thread(do_linuxrc, "/linuxrc", SIGCHLD);
1479 if (pid>0)
1480 while (pid != wait(&i));
1481 if (MAJOR(real_root_dev) != RAMDISK_MAJOR
1482 || MINOR(real_root_dev) != 0) {
1483 error = change_root(real_root_dev,"/initrd");
1484 if (error)
1485 printk(KERN_ERR "Change root to /initrd: "
1486 "error %d\n",error);
1487 }
1488 }
1489#endif
1490}
1491
1492static int init(void * unused)
1493{
1494 lock_kernel();
1495 do_basic_setup();
1496
1497
1498
1499
1500
1501
1502 free_initmem();
1503 unlock_kernel();
1504
1505 if (open("/dev/console", O_RDWR, 0) < 0)
1506 printk("Warning: unable to open an initial console.\n");
1507
1508 (void) dup(0);
1509 (void) dup(0);
1510
1511
1512
1513
1514
1515
1516
1517
1518 if (execute_command)
1519 execve(execute_command,argv_init,envp_init);
1520 execve("/sbin/init",argv_init,envp_init);
1521 execve("/etc/init",argv_init,envp_init);
1522 execve("/bin/init",argv_init,envp_init);
1523 execve("/bin/sh",argv_init,envp_init);
1524 panic("No init found. Try passing init= option to kernel.");
1525}
1526
