Current Path : /sys/mips/idt/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
Current File : //sys/mips/idt/idt_machdep.c |
/*- * Copyright (C) 2007 by Oleksandr Tymoshenko. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT, * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF * THE POSSIBILITY OF SUCH DAMAGE. * * $Id: $ * */ #include <sys/cdefs.h> __FBSDID("$FreeBSD: release/9.1.0/sys/mips/idt/idt_machdep.c 216320 2010-12-09 07:47:40Z gonzo $"); #include "opt_ddb.h" #include <sys/param.h> #include <sys/conf.h> #include <sys/kernel.h> #include <sys/systm.h> #include <sys/imgact.h> #include <sys/bio.h> #include <sys/buf.h> #include <sys/bus.h> #include <sys/cpu.h> #include <sys/cons.h> #include <sys/exec.h> #include <sys/ucontext.h> #include <sys/proc.h> #include <sys/kdb.h> #include <sys/ptrace.h> #include <sys/reboot.h> #include <sys/signalvar.h> #include <sys/sysent.h> #include <sys/sysproto.h> #include <sys/user.h> #include <vm/vm.h> #include <vm/vm_object.h> #include <vm/vm_page.h> #include <vm/vm_pager.h> #include <machine/cache.h> #include <machine/clock.h> #include <machine/cpu.h> #include <machine/cpuinfo.h> #include <machine/cpufunc.h> #include <machine/cpuregs.h> #include <machine/hwfunc.h> #include <machine/intr_machdep.h> #include <machine/locore.h> #include <machine/md_var.h> #include <machine/pte.h> #include <machine/sigframe.h> #include <machine/trap.h> #include <machine/vmparam.h> extern int *edata; extern int *end; void platform_cpu_init() { /* Nothing special */ } void platform_halt(void) { } void platform_identify(void) { } void platform_reset(void) { volatile unsigned int * p = (void *)0xb8008000; /* * TODO: we should take care of TLB stuff here. Otherwise * board does not boots properly next time */ /* Write 0x8000_0001 to the Reset register */ *p = 0x80000001; __asm __volatile("li $25, 0xbfc00000"); __asm __volatile("j $25"); } void platform_trap_enter(void) { } void platform_trap_exit(void) { } void platform_start(__register_t a0, __register_t a1, __register_t a2 __unused, __register_t a3 __unused) { uint64_t platform_counter_freq; vm_offset_t kernend; int argc = a0; char **argv = (char **)a1; int i, mem; /* clear the BSS and SBSS segments */ kernend = (vm_offset_t)&end; memset(&edata, 0, kernend - (vm_offset_t)(&edata)); mips_postboot_fixup(); /* Initialize pcpu stuff */ mips_pcpu0_init(); /* * Looking for mem=XXM argument */ mem = 0; /* Just something to start with */ for (i=0; i < argc; i++) { if (strncmp(argv[i], "mem=", 4) == 0) { mem = strtol(argv[i] + 4, NULL, 0); break; } } bootverbose = 1; if (mem > 0) realmem = btoc(mem << 20); else realmem = btoc(32 << 20); for (i = 0; i < 10; i++) { phys_avail[i] = 0; } /* phys_avail regions are in bytes */ phys_avail[0] = MIPS_KSEG0_TO_PHYS(kernel_kseg0_end); phys_avail[1] = ctob(realmem); dump_avail[0] = phys_avail[0]; dump_avail[1] = phys_avail[1]; physmem = realmem; /* * ns8250 uart code uses DELAY so ticker should be inititalized * before cninit. And tick_init_params refers to hz, so * init_param1 * should be called first. */ init_param1(); /* TODO: parse argc,argv */ platform_counter_freq = 330000000UL; mips_timer_init_params(platform_counter_freq, 1); cninit(); /* Panic here, after cninit */ if (mem == 0) panic("No mem=XX parameter in arguments"); printf("cmd line: "); for (i=0; i < argc; i++) printf("%s ", argv[i]); printf("\n"); init_param2(physmem); mips_cpu_init(); pmap_bootstrap(); mips_proc0_init(); mutex_init(); kdb_init(); #ifdef KDB if (boothowto & RB_KDB) kdb_enter(KDB_WHY_BOOTFLAGS, "Boot flags requested debugger"); #endif }