Add UVM support.
This commit is contained in:
tsubai
parent
f7a658d062
commit
ed4f8a8894
@ -1,4 +1,4 @@
|
||||
/* $NetBSD: machdep.c,v 1.9 1998/05/01 18:41:27 tsubai Exp $ */
|
||||
/* $NetBSD: machdep.c,v 1.10 1998/05/03 17:46:41 tsubai Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 1988 University of Utah.
|
||||
@ -43,11 +43,12 @@
|
||||
|
||||
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
|
||||
|
||||
__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.9 1998/05/01 18:41:27 tsubai Exp $");
|
||||
__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.10 1998/05/03 17:46:41 tsubai Exp $");
|
||||
|
||||
/* from: Utah Hdr: machdep.c 1.63 91/04/24 */
|
||||
|
||||
#include "fs_mfs.h"
|
||||
#include "opt_uvm.h"
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/systm.h>
|
||||
@ -75,6 +76,11 @@ __KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.9 1998/05/01 18:41:27 tsubai Exp $");
|
||||
#include <sys/kcore.h>
|
||||
|
||||
#include <vm/vm_kern.h>
|
||||
|
||||
#if defined(UVM)
|
||||
#include <uvm/uvm_extern.h>
|
||||
#endif
|
||||
|
||||
#include <ufs/mfs/mfs_extern.h> /* mfs_initminiroot() */
|
||||
|
||||
#include <machine/cpu.h>
|
||||
@ -98,7 +104,15 @@ __KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.9 1998/05/01 18:41:27 tsubai Exp $");
|
||||
char machine[] = MACHINE; /* from <machine/param.h> */
|
||||
char cpu_model[30];
|
||||
|
||||
/* maps for VM objects */
|
||||
|
||||
#if defined(UVM)
|
||||
vm_map_t exec_map = NULL;
|
||||
vm_map_t mb_map = NULL;
|
||||
vm_map_t phys_map = NULL;
|
||||
#else
|
||||
vm_map_t buffer_map;
|
||||
#endif
|
||||
|
||||
int maxmem; /* max memory per process */
|
||||
int physmem; /* max supported memory, changes to actual */
|
||||
@ -199,7 +213,11 @@ mach_init(x_boothowto, x_bootdev, x_bootname, x_maxmem)
|
||||
/*
|
||||
* Set the VM page size.
|
||||
*/
|
||||
#if defined(UVM)
|
||||
uvm_setpagesize();
|
||||
#else
|
||||
vm_set_page_size();
|
||||
#endif
|
||||
|
||||
boothowto = x_boothowto;
|
||||
bootdev = x_bootdev;
|
||||
@ -256,7 +274,11 @@ mach_init(x_boothowto, x_bootdev, x_bootname, x_maxmem)
|
||||
*/
|
||||
first = round_page(MIPS_KSEG0_TO_PHYS(kernend));
|
||||
last = mem_clusters[0].start + mem_clusters[0].size;
|
||||
#if defined(UVM)
|
||||
uvm_page_physload(atop(first), atop(last), atop(first), atop(last));
|
||||
#else
|
||||
vm_page_physload(atop(first), atop(last), atop(first), atop(last));
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Initialize error message buffer (at end of core).
|
||||
@ -333,7 +355,7 @@ cpu_startup()
|
||||
* Good {morning,afternoon,evening,night}.
|
||||
*/
|
||||
printf(version);
|
||||
printf("real mem = %d\n", ctob(physmem));
|
||||
printf("real mem = %d\n", ctob(physmem));
|
||||
|
||||
/*
|
||||
* Allocate virtual address space for file I/O buffers.
|
||||
@ -341,15 +363,52 @@ cpu_startup()
|
||||
* and usually occupy more virtual memory than physical.
|
||||
*/
|
||||
size = MAXBSIZE * nbuf;
|
||||
#if defined(UVM)
|
||||
if (uvm_map(kernel_map, (vm_offset_t *) &buffers, round_page(size),
|
||||
NULL, UVM_UNKNOWN_OFFSET,
|
||||
UVM_MAPFLAG(UVM_PROT_NONE, UVM_PROT_NONE, UVM_INH_NONE,
|
||||
UVM_ADV_NORMAL, 0)) != KERN_SUCCESS)
|
||||
panic("startup: cannot allocate VM for buffers");
|
||||
#else
|
||||
buffer_map = kmem_suballoc(kernel_map, (vm_offset_t *)&buffers,
|
||||
&maxaddr, size, TRUE);
|
||||
minaddr = (vm_offset_t)buffers;
|
||||
if (vm_map_find(buffer_map, vm_object_allocate(size), (vm_offset_t)0,
|
||||
&minaddr, size, FALSE) != KERN_SUCCESS)
|
||||
panic("startup: cannot allocate buffers");
|
||||
#endif /* UVM */
|
||||
base = bufpages / nbuf;
|
||||
residual = bufpages % nbuf;
|
||||
for (i = 0; i < nbuf; i++) {
|
||||
#if defined(UVM)
|
||||
vm_size_t curbufsize;
|
||||
vm_offset_t curbuf;
|
||||
struct vm_page *pg;
|
||||
|
||||
/*
|
||||
* Each buffer has MAXBSIZE bytes of VM space allocated. Of
|
||||
* that MAXBSIZE space, we allocate and map (base+1) pages
|
||||
* for the first "residual" buffers, and then we allocate
|
||||
* "base" pages for the rest.
|
||||
*/
|
||||
curbuf = (vm_offset_t) buffers + (i * MAXBSIZE);
|
||||
curbufsize = CLBYTES * ((i < residual) ? (base+1) : base);
|
||||
|
||||
while (curbufsize) {
|
||||
pg = uvm_pagealloc(NULL, 0, NULL);
|
||||
if (pg == NULL)
|
||||
panic("cpu_startup: not enough memory for "
|
||||
"buffer cache");
|
||||
#if defined(PMAP_NEW)
|
||||
pmap_kenter_pgs(curbuf, &pg, 1);
|
||||
#else
|
||||
pmap_enter(kernel_map->pmap, curbuf,
|
||||
VM_PAGE_TO_PHYS(pg), VM_PROT_ALL, TRUE);
|
||||
#endif
|
||||
curbuf += PAGE_SIZE;
|
||||
curbufsize -= PAGE_SIZE;
|
||||
}
|
||||
#else /* ! UVM */
|
||||
vm_size_t curbufsize;
|
||||
vm_offset_t curbuf;
|
||||
|
||||
@ -364,24 +423,40 @@ cpu_startup()
|
||||
curbufsize = CLBYTES * (i < residual ? base+1 : base);
|
||||
vm_map_pageable(buffer_map, curbuf, curbuf+curbufsize, FALSE);
|
||||
vm_map_simplify(buffer_map, curbuf);
|
||||
#endif /* UVM */
|
||||
}
|
||||
/*
|
||||
* Allocate a submap for exec arguments. This map effectively
|
||||
* limits the number of processes exec'ing at any time.
|
||||
*/
|
||||
#if defined(UVM)
|
||||
exec_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr,
|
||||
16 * NCARGS, TRUE, FALSE, NULL);
|
||||
#else
|
||||
exec_map = kmem_suballoc(kernel_map, &minaddr, &maxaddr,
|
||||
16 * NCARGS, TRUE);
|
||||
#endif
|
||||
/*
|
||||
* Allocate a submap for physio
|
||||
*/
|
||||
#if defined(UVM)
|
||||
phys_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr,
|
||||
VM_PHYS_SIZE, TRUE, FALSE, NULL);
|
||||
#else
|
||||
phys_map = kmem_suballoc(kernel_map, &minaddr, &maxaddr,
|
||||
VM_PHYS_SIZE, TRUE);
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Finally, allocate mbuf cluster submap.
|
||||
*/
|
||||
#if defined(UVM)
|
||||
mb_map = uvm_km_suballoc(kernel_map, (vm_offset_t *)&mbutl, &maxaddr,
|
||||
VM_MBUF_SIZE, FALSE, FALSE, NULL);
|
||||
#else
|
||||
mb_map = kmem_suballoc(kernel_map, (vm_offset_t *)&mbutl, &maxaddr,
|
||||
VM_MBUF_SIZE, FALSE);
|
||||
#endif
|
||||
/*
|
||||
* Initialize callouts
|
||||
*/
|
||||
@ -393,7 +468,11 @@ cpu_startup()
|
||||
#ifdef DEBUG
|
||||
pmapdebug = opmapdebug;
|
||||
#endif
|
||||
#if defined(UVM)
|
||||
printf("avail mem = %ld\n", ptoa(uvmexp.free));
|
||||
#else
|
||||
printf("avail mem = %ld\n", ptoa(cnt.v_free_count));
|
||||
#endif
|
||||
printf("using %d buffers containing %d bytes of memory\n",
|
||||
nbuf, bufpages * CLBYTES);
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user