Use allocsys(), mips_init_msgbuf(), and mips_init_proc0(), plus small
changes for MACHINE_NEW_NONCONTIG.
This commit is contained in:
thorpej
parent
c2e692ff93
commit
b3c5864223
@ -1,4 +1,4 @@
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/* $NetBSD: machdep.c,v 1.19 1998/02/23 20:05:09 thorpej Exp $ */
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/* $NetBSD: machdep.c,v 1.20 1998/02/25 23:30:33 thorpej Exp $ */
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/*
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* Copyright (c) 1988 University of Utah.
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@ -55,7 +55,6 @@
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#include <sys/reboot.h>
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#include <sys/conf.h>
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#include <sys/file.h>
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#include <sys/clist.h>
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#include <sys/callout.h>
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#include <sys/malloc.h>
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#include <sys/mbuf.h>
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@ -65,19 +64,11 @@
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#include <sys/tty.h>
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#include <sys/user.h>
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#include <sys/exec.h>
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#include <vm/vm.h>
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#include <sys/sysctl.h>
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#include <sys/mount.h>
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#include <sys/syscallargs.h>
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#include <sys/kcore.h>
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#ifdef SYSVSHM
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#include <sys/shm.h>
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#endif
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#ifdef SYSVSEM
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#include <sys/sem.h>
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#endif
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#ifdef SYSVMSG
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#include <sys/msg.h>
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#endif
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#include <vm/vm_kern.h>
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#include <ufs/mfs/mfs_extern.h> /* mfs_initminiroot() */
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@ -115,22 +106,6 @@ char cpu_model[30];
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vm_map_t buffer_map;
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/*
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* Declare these as initialized data so we can patch them.
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*/
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int nswbuf = 0;
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#ifdef NBUF
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int nbuf = NBUF;
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#else
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int nbuf = 0;
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#endif
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#ifdef BUFPAGES
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int bufpages = BUFPAGES;
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#else
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int bufpages = 0;
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#endif
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caddr_t msgbufaddr;
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int maxmem; /* max memory per process */
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int physmem; /* max supported memory, changes to actual */
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int memcfg; /* memory config register */
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@ -141,7 +116,7 @@ int ncpu = 1; /* At least one cpu in the system */
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int isa_io_base; /* Base address of ISA io port space */
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int isa_mem_base; /* Base address of ISA memory space */
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phys_ram_seg_t mem_clusters[1]; /* XXX VM_PHYSSEG_MAX */
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phys_ram_seg_t mem_clusters[VM_PHYSSEG_MAX];
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int mem_cluster_cnt;
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/*
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@ -196,9 +171,6 @@ extern void stacktrace __P((void)); /*XXX*/
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*/
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int safepri = PSL_LOWIPL;
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struct user *proc0paddr;
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struct proc nullproc; /* for use by swtch_exit() */
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extern void mips_vector_init __P((void));
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@ -216,15 +188,15 @@ mach_init(argc, argv, code)
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{
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register char *cp;
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register int i;
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register unsigned firstaddr;
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register caddr_t v;
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caddr_t start;
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struct tlb tlb;
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u_long first, last;
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caddr_t kernend, v;
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vm_size_t size;
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extern char edata[], end[];
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/* clear the BSS segment in NetBSD code */
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v = (caddr_t)pica_round_page(end);
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bzero(edata, v - edata);
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kernend = (caddr_t)pica_round_page(end);
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bzero(edata, kernend - edata);
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/*
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* Set the VM page size.
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@ -316,10 +288,18 @@ mach_init(argc, argv, code)
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*/
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if (boothowto & RB_MINIROOT) {
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boothowto |= RB_DFLTROOT;
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v += mfs_initminiroot(v);
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kernend += round_page(mfs_initminiroot(kernend));
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}
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#endif
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/*
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* Init the mapping for u page(s) for proc0, pm_tlbpid 1.
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* This also initializes nullproc for switch_exit().
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*/
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mips_init_proc0(kernend);
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kernend += 2 * UPAGES * PAGE_SIZE;
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/*
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* Now its time to abandon the BIOS and be self supplying.
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* Start with cleaning out the TLB. Bye bye Microsoft....
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@ -366,51 +346,6 @@ mach_init(argc, argv, code)
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tlb.tlb_lo0 = vad_to_pfn(PICA_P_ISA_IO) | MIPS3_PG_IOPAGE;
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tlb.tlb_lo1 = vad_to_pfn(PICA_P_ISA_MEM) | MIPS3_PG_IOPAGE;
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mips3_TLBWriteIndexedVPS(5, &tlb);
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/*
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* Init mapping for u page(s) for proc[0], pm_tlbpid 1.
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*/
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v = (caddr_t) (((int)v+3) & -4);
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start = v;
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curproc->p_addr = proc0paddr = (struct user *)v;
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curproc->p_md.md_regs = proc0paddr->u_pcb.pcb_regs;
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firstaddr = MIPS_KSEG0_TO_PHYS(v);
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for (i = 0; i < UPAGES; i+=2) {
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tlb.tlb_mask = MIPS3_PG_SIZE_4K;
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tlb.tlb_hi = mips3_vad_to_vpn((UADDR + (i << PGSHIFT))) | 1;
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tlb.tlb_lo0 = vad_to_pfn(firstaddr) |
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(MIPS3_PG_V | MIPS3_PG_M | MIPS3_PG_CACHED);
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tlb.tlb_lo1 = vad_to_pfn(firstaddr + NBPG) |
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(MIPS3_PG_V | MIPS3_PG_M | MIPS3_PG_CACHED);
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curproc->p_md.md_upte[i] = tlb.tlb_lo0;
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curproc->p_md.md_upte[i+1] = tlb.tlb_lo1;
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mips3_TLBWriteIndexedVPS(i,&tlb);
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firstaddr += NBPG * 2;
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}
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v += UPAGES * NBPG;
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v = (caddr_t) (((int)v+3) & -4);
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MachSetPID(1);
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/*
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* init nullproc for swtch_exit().
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* init mapping for u page(s), pm_tlbpid 0
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* This could be used for an idle process.
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*/
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nullproc.p_addr = (struct user *)v;
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nullproc.p_md.md_regs = nullproc.p_addr->u_pcb.pcb_regs;
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bcopy("nullproc", nullproc.p_comm, sizeof("nullproc"));
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firstaddr = MIPS_KSEG0_TO_PHYS(v);
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for (i = 0; i < UPAGES; i+=2) {
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nullproc.p_md.md_upte[i] = vad_to_pfn(firstaddr) |
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(MIPS3_PG_V | MIPS3_PG_M | MIPS3_PG_CACHED);
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nullproc.p_md.md_upte[i+1] = vad_to_pfn(firstaddr + NBPG) |
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(MIPS3_PG_V | MIPS3_PG_M | MIPS3_PG_CACHED);
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firstaddr += NBPG * 2;
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}
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v += UPAGES * NBPG;
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/* clear pages for u areas */
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bzero(start, v - start);
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/* check what model platform we are running on */
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switch (cputype) {
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@ -457,7 +392,7 @@ mach_init(argc, argv, code)
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break;
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default:
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physmem = btoc((u_int)v - KERNBASE);
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physmem = btoc((vm_offset_t)kernend - MIPS_KSEG0_START);
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cp = (char *)MIPS_PHYS_TO_KSEG0(physmem << PGSHIFT);
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while (cp < (char *)MIPS_MAX_MEM_ADDR) {
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if (badaddr(cp, 4))
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@ -489,79 +424,33 @@ mach_init(argc, argv, code)
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mem_clusters[0].size = ctob(physmem);
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mem_cluster_cnt = 1;
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/*
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* Load the rest of the pages into the VM system.
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*/
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first = round_page(MIPS_KSEG0_TO_PHYS(kernend));
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last = mem_clusters[0].start + mem_clusters[0].size;
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vm_page_physload(atop(first), atop(last), atop(first), atop(last));
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/*
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* Initialize error message buffer (at end of core).
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*/
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maxmem -= btoc(MSGBUFSIZE);
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msgbufaddr = (caddr_t)(MIPS_PHYS_TO_KSEG0(maxmem << PGSHIFT));
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initmsgbuf(msgbufaddr, pica_round_page(MSGBUFSIZE));
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mips_init_msgbuf();
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/*
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* Allocate space for system data structures.
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* The first available kernel virtual address is in "v".
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* As pages of kernel virtual memory are allocated, "v" is incremented.
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*
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* These data structures are allocated here instead of cpu_startup()
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* because physical memory is directly addressable. We don't have
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* to map these into virtual address space.
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* Allocate space for system data structures. These data structures
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* are allocated here instead of cpu_startup() because physical
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* memory is directly addressable. We don't have to map these into
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* virtual address space.
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*/
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start = v;
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#define valloc(name, type, num) \
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(name) = (type *)v; v = (caddr_t)((name)+(num))
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#define valloclim(name, type, num, lim) \
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(name) = (type *)v; v = (caddr_t)((lim) = ((name)+(num)))
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#ifdef REAL_CLISTS
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valloc(cfree, struct cblock, nclist);
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#endif
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valloc(callout, struct callout, ncallout);
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#ifdef SYSVSHM
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valloc(shmsegs, struct shmid_ds, shminfo.shmmni);
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#endif
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#ifdef SYSVSEM
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valloc(sema, struct semid_ds, seminfo.semmni);
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valloc(sem, struct sem, seminfo.semmns);
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/* This is pretty disgusting! */
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valloc(semu, int, (seminfo.semmnu * seminfo.semusz) / sizeof(int));
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#endif
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#ifdef SYSVMSG
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valloc(msgpool, char, msginfo.msgmax);
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valloc(msgmaps, struct msgmap, msginfo.msgseg);
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valloc(msghdrs, struct msg, msginfo.msgtql);
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valloc(msqids, struct msqid_ds, msginfo.msgmni);
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#endif
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/*
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* Determine how many buffers to allocate.
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* We allocate more buffer space than the BSD standard of
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* using 10% of memory for the first 2 Meg, 5% of remaining.
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* We just allocate a flat 10%. Ensure a minimum of 16 buffers.
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* We allocate 1/2 as many swap buffer headers as file i/o buffers.
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*/
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if (bufpages == 0)
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bufpages = physmem / 10 / CLSIZE;
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if (nbuf == 0) {
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nbuf = bufpages;
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if (nbuf < 16)
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nbuf = 16;
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}
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if (nswbuf == 0) {
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nswbuf = (nbuf / 2) &~ 1; /* force even */
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if (nswbuf > 256)
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nswbuf = 256; /* sanity */
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}
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valloc(swbuf, struct buf, nswbuf);
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valloc(buf, struct buf, nbuf);
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/*
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* Clear allocated memory.
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*/
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bzero(start, v - start);
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size = (vm_size_t)allocsys(0);
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v = (caddr_t)pmap_steal_memory(size, NULL, NULL);
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if ((allocsys(v) - v) != size)
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panic("mach_init: table size inconsistency");
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/*
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* Initialize the virtual memory system.
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*/
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pmap_bootstrap((vm_offset_t)v);
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pmap_bootstrap();
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}
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/*
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