ref: 1dbb193077af7ba6ff7fb70a4dd465480764382e
dir: /os/ipaq1110/main.c/
#include "u.h" #include "../port/lib.h" #include "mem.h" #include "dat.h" #include "fns.h" #include "../port/error.h" #include "io.h" #include "version.h" Mach *m = (Mach*)MACHADDR; Proc *up = 0; Vectorpage *page0 = (Vectorpage*)KZERO; /* doubly-mapped to AIVECADDR */ Conf conf; extern ulong kerndate; extern int cflag; extern int main_pool_pcnt; extern int heap_pool_pcnt; extern int image_pool_pcnt; ulong cpuidlecount; static void poolsizeinit(void) { ulong nb; nb = conf.npage*BY2PG; poolsize(mainmem, (nb*main_pool_pcnt)/100, 0); poolsize(heapmem, (nb*heap_pool_pcnt)/100, 0); poolsize(imagmem, (nb*image_pool_pcnt)/100, 1); } void main(void) { memset(edata, 0, end-edata); /* clear the BSS */ memset(m, 0, sizeof(Mach)); /* clear the mach struct */ conf.nmach = 1; archreset(); dmareset(); quotefmtinstall(); confinit(); xinit(); mmuinit(); poolinit(); poolsizeinit(); trapinit(); clockinit(); printinit(); screeninit(); procinit(); links(); chandevreset(); eve = strdup("inferno"); archconsole(); kbdinit(); print("%ld MHz id %8.8lux\n", (m->cpuhz+500000)/1000000, getcpuid()); print("\nInferno %s\n", VERSION); print("Vita Nuova\n"); print("conf %s (%lud) jit %d\n\n",conffile, kerndate, cflag); userinit(); schedinit(); } void reboot(void) { exit(0); } void halt(void) { spllo(); print("cpu halted\n"); for(;;){ /* nothing to do */ } } void confinit(void) { ulong base; archconfinit(); base = PGROUND((ulong)end); conf.base0 = base; conf.base1 = 0; conf.npage1 = 0; conf.npage0 = (conf.topofmem - base)/BY2PG; conf.npage = conf.npage0 + conf.npage1; conf.ialloc = (((conf.npage*(main_pool_pcnt))/100)/2)*BY2PG; conf.nproc = 100 + ((conf.npage*BY2PG)/MB)*5; conf.nmach = 1; } void init0(void) { Osenv *o; char buf[2*KNAMELEN]; up->nerrlab = 0; spllo(); if(waserror()) panic("init0 %r"); /* * These are o.k. because rootinit is null. * Then early kproc's will have a root and dot. */ o = up->env; o->pgrp->slash = namec("#/", Atodir, 0, 0); cnameclose(o->pgrp->slash->name); o->pgrp->slash->name = newcname("/"); o->pgrp->dot = cclone(o->pgrp->slash); chandevinit(); if(!waserror()){ ksetenv("cputype", "arm", 0); snprint(buf, sizeof(buf), "arm %s", conffile); ksetenv("terminal", buf, 0); poperror(); } poperror(); disinit("/osinit.dis"); } void userinit(void) { Proc *p; Osenv *o; p = newproc(); o = p->env; o->fgrp = newfgrp(nil); o->pgrp = newpgrp(); o->egrp = newegrp(); kstrdup(&o->user, eve); strcpy(p->text, "interp"); p->fpstate = FPINIT; /* * Kernel Stack * * N.B. The -12 for the stack pointer is important. * 4 bytes for gotolabel's return PC */ p->sched.pc = (ulong)init0; p->sched.sp = (ulong)p->kstack+KSTACK-8; ready(p); } void exit(int inpanic) { up = 0; /* Shutdown running devices */ chandevshutdown(); if(inpanic && 0){ print("Hit the reset button\n"); for(;;) clockpoll(); } archreboot(); } static void linkproc(void) { spllo(); if (waserror()) print("error() underflow: %r\n"); else (*up->kpfun)(up->arg); pexit("end proc", 1); } void kprocchild(Proc *p, void (*func)(void*), void *arg) { p->sched.pc = (ulong)linkproc; p->sched.sp = (ulong)p->kstack+KSTACK-8; p->kpfun = func; p->arg = arg; } void idlehands(void) { cpuidlecount++; INTRREG->iccr = 1; /* only unmasked interrupts will stop idle mode */ idle(); } /* stubs */ void setfsr(ulong) { } ulong getfsr() { return 0; } void setfcr(ulong) { } ulong getfcr() { return 0; } void fpinit(void) { } void FPsave(void*) { } void FPrestore(void*) { }