diff options
Diffstat (limited to 'sys/vm/vm_map.c')
| -rw-r--r-- | sys/vm/vm_map.c | 39 |
1 files changed, 33 insertions, 6 deletions
diff --git a/sys/vm/vm_map.c b/sys/vm/vm_map.c index 9dbde817dff..8c83bd3e377 100644 --- a/sys/vm/vm_map.c +++ b/sys/vm/vm_map.c @@ -1,4 +1,4 @@ -/* $OpenBSD: vm_map.c,v 1.14 1998/04/25 07:01:19 niklas Exp $ */ +/* $OpenBSD: vm_map.c,v 1.15 1998/04/25 20:15:13 niklas Exp $ */ /* $NetBSD: vm_map.c,v 1.23 1996/02/10 00:08:08 christos Exp $ */ /* @@ -136,8 +136,16 @@ * maps and requires map entries. */ +#if defined(MACHINE_NEW_NONCONTIG) +u_int8_t kentry_data_store[MAX_KMAP*sizeof(struct vm_map) + + MAX_KMAPENT*sizeof(struct vm_map_entry)]; +vm_offset_t kentry_data = (vm_offset_t) kentry_data_store; +vm_size_t kentry_data_size = sizeof(kentry_data_store); +#else +/* NUKE NUKE NUKE */ vm_offset_t kentry_data; vm_size_t kentry_data_size; +#endif vm_map_entry_t kentry_free; vm_map_t kmap_free; @@ -160,6 +168,12 @@ vm_map_startup() vm_map_t mp; /* + * zero kentry area + * XXX necessary? + */ + bzero((caddr_t)kentry_data, kentry_data_size); + + /* * Static map structures for allocation before initialization of * kernel map or kmem map. vm_map_create knows how to deal with them. */ @@ -197,11 +211,24 @@ vmspace_alloc(min, max, pageable) register struct vmspace *vm; if (mapvmpgcnt == 0 && mapvm == 0) { -#ifndef MACHINE_NONCONTIG - mapvmpgcnt = ((last_page-first_page) * sizeof(struct vm_map_entry) + PAGE_SIZE - 1) / PAGE_SIZE; -#else - mapvmpgcnt = (vm_page_count * sizeof(struct vm_map_entry) + PAGE_SIZE - 1) / PAGE_SIZE; -#endif +#if defined(MACHINE_NEW_NONCONTIG) + int vm_page_count = 0; + int lcv; + + for (lcv = 0; lcv < vm_nphysseg; lcv++) + vm_page_count += (vm_physmem[lcv].end - + vm_physmem[lcv].start); + + mapvmpgcnt = (vm_page_count * + sizeof(struct vm_map_entry) + PAGE_SIZE - 1) / PAGE_SIZE; + +#elif defined(MACHINE_NONCONTIG) + mapvmpgcnt = (vm_page_count * + sizeof(struct vm_map_entry) + PAGE_SIZE - 1) / PAGE_SIZE; +#else /* must be contig */ + mapvmpgcnt = ((last_page-first_page) * + sizeof(struct vm_map_entry) + PAGE_SIZE - 1) / PAGE_SIZE; +#endif /* contig */ mapvm_start = mapvm = kmem_alloc_pageable(kernel_map, mapvmpgcnt * PAGE_SIZE); mapvmmax = mapvm_start + mapvmpgcnt * PAGE_SIZE; |