MNN is no longer optional, remove old code
This commit is contained in:
chuck
parent
417e5339f0
commit
9cb41178b7
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@ -1,4 +1,4 @@
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/* $NetBSD: vmparam.h,v 1.15 1999/01/15 07:43:48 matthias Exp $ */
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/* $NetBSD: vmparam.h,v 1.16 1999/01/16 20:39:03 chuck Exp $ */
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/*-
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* Copyright (c) 1990 The Regents of the University of California.
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@ -159,8 +159,6 @@
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#define VM_KMEM_SIZE (NKMEMCLUSTERS*CLBYTES)
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#define VM_PHYS_SIZE (USRIOSIZE*CLBYTES)
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#define MACHINE_NEW_NONCONTIG /* VM <=> pmap interface modifier */
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#define VM_PHYSSEG_MAX 1 /* we have contiguous memory */
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#define VM_PHYSSEG_STRAT VM_PSTRAT_RANDOM
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#define VM_PHYSSEG_NOADD /* can't add RAM after vm_mem_init */
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@ -1,4 +1,4 @@
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/* $NetBSD: pmap.c,v 1.30 1998/09/12 19:14:59 matthias Exp $ */
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/* $NetBSD: pmap.c,v 1.31 1999/01/16 20:39:03 chuck Exp $ */
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/*-
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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@ -207,17 +207,9 @@ paddr_t avail_start; /* PA of first available physical page */
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paddr_t avail_end; /* PA of last available physical page */
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vaddr_t virtual_avail; /* VA of first avail page (after kernel bss)*/
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vaddr_t virtual_end; /* VA of last avail page (end of kernel AS) */
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#if !defined(MACHINE_NEW_NONCONTIG)
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vaddr_t vm_first_phys; /* PA of first managed page */
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vaddr_t vm_last_phys; /* PA just past last managed page */
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#endif
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int npages;
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boolean_t pmap_initialized = FALSE; /* Has pmap_init completed? */
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#if !defined(MACHINE_NEW_NONCONTIG)
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short *pmap_attributes; /* reference and modify bits */
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struct pv_entry *pv_table; /* array of entries, one per page */
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#endif
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TAILQ_HEAD(pv_page_list, pv_page) pv_page_freelist;
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int pv_nfree;
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@ -319,7 +311,6 @@ pmap_bootstrap(virtual_start)
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*/
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virtual_avail = reserve_dumppages(virtual_avail);
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#if defined(MACHINE_NEW_NONCONTIG)
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/*
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* we must call vm_page_physload() after we are done playing
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* with virtual_avail but before we call pmap_steal_memory.
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@ -332,7 +323,6 @@ pmap_bootstrap(virtual_start)
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#else
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vm_page_physload(atop(avail_start), atop(avail_end),
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atop(avail_start), atop(avail_end));
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#endif
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#endif
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pmap_update();
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@ -348,7 +338,6 @@ pmap_virtual_space(startp, endp)
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*endp = virtual_end;
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}
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#if defined(MACHINE_NEW_NONCONTIG)
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/*
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* Initialize the pmap module.
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* Called by vm_init, to initialize any structures that the pmap
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@ -404,54 +393,6 @@ pmap_init()
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pmap_initialized = TRUE;
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}
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#else /* MACHINE_NEW_NONCONTIG */
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/*
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* Initialize the pmap module.
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* Called by vm_init, to initialize any structures that the pmap
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* system needs to map virtual memory.
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*/
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void
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pmap_init(phys_start, phys_end)
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vaddr_t phys_start;
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vaddr_t phys_end;
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{
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vaddr_t addr;
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vsize_t s;
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if (PAGE_SIZE != NBPG)
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panic("pmap_init: CLSIZE != 1");
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npages = atop(phys_end - phys_start);
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s = (vsize_t) (sizeof(struct pv_entry) * npages +
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sizeof(*pmap_attributes) * npages);
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s = round_page(s);
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#if defined(UVM)
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addr = (vaddr_t) uvm_km_zalloc(kernel_map, s);
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if (addr == NULL)
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panic("pmap_init");
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#else
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addr = (vaddr_t) kmem_alloc(kernel_map, s);
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#endif
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pv_table = (struct pv_entry *) addr;
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addr += sizeof(struct pv_entry) * npages;
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pmap_attributes = (short *) addr;
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TAILQ_INIT(&pv_page_freelist);
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#ifdef DEBUG
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if (pmapdebug & PDB_INIT)
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printf("pmap_init: %lx bytes (%x pgs): tbl %p attr %p\n",
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s, npages, pv_table, pmap_attributes);
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#endif
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/*
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* Now it is safe to enable pv_table recording.
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*/
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vm_first_phys = phys_start;
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vm_last_phys = phys_end;
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pmap_initialized = TRUE;
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}
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#endif
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struct pv_entry *
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pmap_alloc_pv()
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{
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@ -581,19 +522,6 @@ pmap_collect_pv()
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}
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#endif
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#if !defined(MACHINE_NEW_NONCONTIG)
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int pmap_page_index(vaddr_t);
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static __inline int
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pmap_page_index(pa)
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vaddr_t pa;
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{
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if (pa >= vm_first_phys && pa < vm_last_phys)
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return ns532_btop(pa - vm_first_phys);
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return -1;
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}
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#endif
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__inline void
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pmap_enter_pv(pmap, va, pv)
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pmap_t pmap;
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@ -910,11 +838,7 @@ pmap_remove(pmap, sva, eva)
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{
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pt_entry_t *pte;
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paddr_t pa;
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#if defined(MACHINE_NEW_NONCONTIG)
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int bank, off;
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#else
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u_int pind;
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#endif
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int flush = 0;
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sva &= PG_FRAME;
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@ -996,19 +920,12 @@ pmap_remove(pmap, sva, eva)
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reduce wiring count on page table pages as references drop
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#endif
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#if defined(MACHINE_NEW_NONCONTIG)
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if ((bank = vm_physseg_find(atop(pa), &off)) != -1) {
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vm_physmem[bank].pmseg.attrs[off] |=
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*pte & (PG_M | PG_U);
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pmap_remove_pv(pmap, sva,
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&vm_physmem[bank].pmseg.pvent[off]);
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}
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#else
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if ((pind = pmap_page_index(pa)) != -1) {
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pmap_attributes[pind] |= *pte & (PG_M | PG_U);
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pmap_remove_pv(pmap, sva, &pv_table[pind]);
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}
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#endif /* MACHINE_NEW_NONCONTIG */
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*pte = 0;
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@ -1037,11 +954,7 @@ pmap_remove_all(pa)
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struct pv_entry *ph, *pv, *npv;
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pmap_t pmap;
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pt_entry_t *pte;
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#if defined(MACHINE_NEW_NONCONTIG)
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int bank, off;
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#else
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u_int pind;
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#endif
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int s;
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#ifdef DEBUG
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@ -1050,22 +963,12 @@ pmap_remove_all(pa)
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/*pmap_pvdump(pa);*/
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#endif
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#if defined(MACHINE_NEW_NONCONTIG)
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bank = vm_physseg_find(atop(pa), &off);
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if (bank == -1)
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return;
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pv = ph = &vm_physmem[bank].pmseg.pvent[off];
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#else
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if ((pind = pmap_page_index(pa)) == -1)
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return;
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pv = ph = &pv_table[pind];
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#endif
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s = splimp();
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if (ph->pv_pmap == NULL) {
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@ -1106,11 +1009,7 @@ reduce wiring count on page table pages as references drop
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/*
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* Update saved attributes for managed page
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*/
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#if defined(MACHINE_NEW_NONCONTIG)
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vm_physmem[bank].pmseg.attrs[off] |= *pte & (PG_M | PG_U);
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#else
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pmap_attributes[pind] |= *pte & (PG_M | PG_U);
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#endif
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*pte = 0;
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@ -1250,11 +1149,7 @@ pmap_enter(pmap, va, pa, prot, wired)
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{
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pt_entry_t *pte;
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pt_entry_t npte;
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#if defined(MACHINE_NEW_NONCONTIG)
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int bank, off;
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#else
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u_int pind;
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#endif
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int flush = 0;
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boolean_t cacheable;
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@ -1363,7 +1258,6 @@ pmap_enter(pmap, va, pa, prot, wired)
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printf("enter: removing old mapping %lx pa %lx ",
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va, opa);
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#endif
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#if defined(MACHINE_NEW_NONCONTIG)
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if ((bank = vm_physseg_find(atop(opa), &off)) != -1) {
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vm_physmem[bank].pmseg.attrs[off] |=
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@ -1371,12 +1265,6 @@ pmap_enter(pmap, va, pa, prot, wired)
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pmap_remove_pv(pmap, va,
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&vm_physmem[bank].pmseg.pvent[off]);
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}
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#else
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if ((pind = pmap_page_index(opa)) != -1) {
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pmap_attributes[pind] |= *pte & (PG_M | PG_U);
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pmap_remove_pv(pmap, va, &pv_table[pind]);
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}
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#endif
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#ifdef DEBUG
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enter_stats.mchange++;
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#endif
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@ -1392,7 +1280,6 @@ pmap_enter(pmap, va, pa, prot, wired)
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/*
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* Enter on the PV list if part of our managed memory
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*/
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#if defined(MACHINE_NEW_NONCONTIG)
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if ((bank = vm_physseg_find(atop(pa), &off)) != -1) {
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#ifdef DEBUG
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enter_stats.managed++;
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@ -1400,7 +1287,6 @@ pmap_enter(pmap, va, pa, prot, wired)
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pmap_enter_pv(pmap, va, &vm_physmem[bank].pmseg.pvent[off]);
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cacheable = TRUE;
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}
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#else
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if ((pind = pmap_page_index(pa)) != -1) {
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#ifdef DEBUG
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enter_stats.managed++;
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@ -1408,7 +1294,6 @@ pmap_enter(pmap, va, pa, prot, wired)
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pmap_enter_pv(pmap, va, &pv_table[pind]);
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cacheable = TRUE;
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}
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#endif
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else if (pmap_initialized) {
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#ifdef DEBUG
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enter_stats.unmanaged++;
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@ -1755,11 +1640,7 @@ pmap_pageable(pmap, sva, eva, pageable)
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pt_entry_t *pte;
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#ifdef DEBUG
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#if defined(MACHINE_NEW_NONCONTIG)
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int bank, off;
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#else
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u_int pind;
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#endif
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struct pv_entry *pv;
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if ((pmapdebug & (PDB_FOLLOW|PDB_PTPAGE)) == PDB_PTPAGE)
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@ -1776,18 +1657,11 @@ pmap_pageable(pmap, sva, eva, pageable)
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pa = pmap_pte_pa(pte);
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#ifdef DEBUG
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#if defined(MACHINE_NEW_NONCONTIG)
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if ((bank = vm_physseg_find(atop(pa), &off)) == -1)
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return;
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pv = &vm_physmem[bank].pmseg.pvent[off];
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#else
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if ((pind = pmap_page_index(pa)) == -1)
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return;
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pv = &pv_table[pind];
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#endif
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if (pv->pv_va != sva || pv->pv_next) {
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printf("pmap_pageable: bad PT page va %lx next %p\n",
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pv->pv_va, pv->pv_next);
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@ -1835,33 +1709,19 @@ pmap_testbit(pa, setbits)
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{
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struct pv_entry *pv;
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pt_entry_t *pte;
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#if defined(MACHINE_NEW_NONCONTIG)
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int bank, off;
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#else
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u_int pind;
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#endif
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int s;
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#if defined(MACHINE_NEW_NONCONTIG)
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if ((bank = vm_physseg_find(atop(pa), &off)) == -1)
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return FALSE;
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pv = &vm_physmem[bank].pmseg.pvent[off];
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#else
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if ((pind = pmap_page_index(pa)) == -1)
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return FALSE;
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pv = &pv_table[pind];
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#endif
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s = splimp();
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/*
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* Check saved info first
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*/
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#if defined(MACHINE_NEW_NONCONTIG)
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if (vm_physmem[bank].pmseg.attrs[off] & setbits)
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#else
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if (pmap_attributes[pind] & setbits)
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#endif
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{
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splx(s);
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return TRUE;
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@ -1897,11 +1757,7 @@ pmap_changebit(pa, setbits, maskbits)
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struct pv_entry *pv;
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pt_entry_t *pte;
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vaddr_t va;
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#if defined(MACHINE_NEW_NONCONTIG)
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int bank, off;
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#else
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u_int pind;
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#endif
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int s;
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#ifdef DEBUG
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@ -1910,27 +1766,16 @@ pmap_changebit(pa, setbits, maskbits)
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pa, setbits, ~maskbits);
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#endif
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#if defined(MACHINE_NEW_NONCONTIG)
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if ((bank = vm_physseg_find(atop(pa), &off)) == -1)
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return;
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pv = &vm_physmem[bank].pmseg.pvent[off];
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#else
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if ((pind = pmap_page_index(pa)) == -1)
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return;
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pv = &pv_table[pind];
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#endif
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s = splimp();
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/*
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* Clear saved attributes (modify, reference)
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*/
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#if defined(MACHINE_NEW_NONCONTIG)
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if (~maskbits)
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vm_physmem[bank].pmseg.attrs[off] &= maskbits;
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#else
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if (~maskbits)
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pmap_attributes[pind] &= maskbits;
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#endif
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/*
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* Loop over all current mappings setting/clearing as appropos
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@ -1970,12 +1815,9 @@ pmap_pvdump(pa)
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paddr_t pa;
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{
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struct pv_entry *pv;
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#if defined(MACHINE_NEW_NONCONTIG)
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int bank, off;
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#endif
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printf("pa %lx", pa);
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#if defined(MACHINE_NEW_NONCONTIG)
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if ((bank = vm_physseg_find(atop(pa), &off)) == -1) {
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printf("INVALID PA!");
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} else {
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@ -1985,12 +1827,6 @@ pmap_pvdump(pa)
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pads(pv->pv_pmap);
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}
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}
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#else
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for (pv = &pv_table[pmap_page_index(pa)]; pv; pv = pv->pv_next) {
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printf(" -> pmap %p, va %lx", pv->pv_pmap, pv->pv_va);
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pads(pv->pv_pmap);
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}
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#endif
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printf(" ");
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}
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@ -1,4 +1,4 @@
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/* $NetBSD: vmparam.h,v 1.7 1998/08/31 14:43:40 tsubai Exp $ */
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/* $NetBSD: vmparam.h,v 1.8 1999/01/16 20:41:23 chuck Exp $ */
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/*-
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* Copyright (C) 1995, 1996 Wolfgang Solfrank.
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@ -94,8 +94,6 @@
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#define VM_MBUF_SIZE (NMBCLUSTERS * CLBYTES)
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#define VM_PHYS_SIZE (USRIOSIZE * CLBYTES)
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#define MACHINE_NEW_NONCONTIG
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struct pmap_physseg {
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struct pv_entry *pvent;
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char *attrs;
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@ -1,4 +1,4 @@
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/* $NetBSD: pmap.c,v 1.13 1999/01/12 11:03:04 tsubai Exp $ */
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/* $NetBSD: pmap.c,v 1.14 1999/01/16 20:41:24 chuck Exp $ */
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/*
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* Copyright (C) 1995, 1996 Wolfgang Solfrank.
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@ -189,7 +189,6 @@ ptematch(ptp, sr, va, which)
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| which);
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}
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#if defined(MACHINE_NEW_NONCONTIG)
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static __inline struct pv_entry *
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pa_to_pv(pa)
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paddr_t pa;
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@ -213,7 +212,6 @@ pa_to_attr(pa)
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return NULL;
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return &vm_physmem[bank].pmseg.attrs[pg];
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}
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#endif
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/*
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* Try to insert page table entry *pt into the ptable at idx.
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@ -488,7 +486,6 @@ pmap_bootstrap(kernelstart, kernelend)
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bcopy(mp + 1, mp, (cnt - (mp - avail)) * sizeof *mp);
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#endif
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#if defined(MACHINE_NEW_NONCONTIG)
|
||||
for (mp = avail; mp->size; mp++)
|
||||
#if defined(UVM)
|
||||
uvm_page_physload(atop(mp->start), atop(mp->start + mp->size),
|
||||
|
|
@ -497,7 +494,6 @@ pmap_bootstrap(kernelstart, kernelend)
|
|||
#else
|
||||
vm_page_physload(atop(mp->start), atop(mp->start + mp->size),
|
||||
atop(mp->start), atop(mp->start + mp->size));
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/*
|
||||
|
|
@ -557,10 +553,8 @@ pmap_init()
|
|||
vsize_t sz;
|
||||
vaddr_t addr;
|
||||
int i, s;
|
||||
#if defined(MACHINE_NEW_NONCONTIG)
|
||||
int bank;
|
||||
char *attr;
|
||||
#endif
|
||||
|
||||
sz = (vsize_t)((sizeof(struct pv_entry) + 1) * npgs);
|
||||
sz = round_page(sz);
|
||||
|
|
@ -579,7 +573,6 @@ pmap_init()
|
|||
pmap_attrib = (char *)pv;
|
||||
bzero(pv, npgs);
|
||||
|
||||
#if defined(MACHINE_NEW_NONCONTIG)
|
||||
pv = pv_table;
|
||||
attr = pmap_attrib;
|
||||
for (bank = 0; bank < vm_nphysseg; bank++) {
|
||||
|
|
@ -589,34 +582,11 @@ pmap_init()
|
|||
pv += sz;
|
||||
attr += sz;
|
||||
}
|
||||
#endif
|
||||
|
||||
pmap_initialized = 1;
|
||||
splx(s);
|
||||
}
|
||||
|
||||
/*
|
||||
* Return the index of the given page in terms of pmap_next_page() calls.
|
||||
*/
|
||||
#if !defined(MACHINE_NEW_NONCONTIG)
|
||||
int
|
||||
pmap_page_index(pa)
|
||||
paddr_t pa;
|
||||
{
|
||||
struct mem_region *mp;
|
||||
psize_t pre;
|
||||
|
||||
pa &= ~PGOFSET;
|
||||
for (pre = 0, mp = avail; mp->size; mp++) {
|
||||
if (pa >= mp->start
|
||||
&& pa < mp->start + mp->size)
|
||||
return btoc(pre + (pa - mp->start));
|
||||
pre += mp->size;
|
||||
}
|
||||
return -1;
|
||||
}
|
||||
#endif
|
||||
|
||||
/*
|
||||
* How much virtual space is available to the kernel?
|
||||
*/
|
||||
|
|
@ -631,40 +601,6 @@ pmap_virtual_space(start, end)
|
|||
*end = *start + SEGMENT_LENGTH;
|
||||
}
|
||||
|
||||
#if !defined(MACHINE_NEW_NONCONTIG)
|
||||
/*
|
||||
* Return the number of possible page indices returned
|
||||
* from pmap_page_index for any page provided by pmap_next_page.
|
||||
*/
|
||||
u_int
|
||||
pmap_free_pages()
|
||||
{
|
||||
return npgs;
|
||||
}
|
||||
|
||||
/*
|
||||
* If there are still physical pages available, put the address of
|
||||
* the next available one at paddr and return TRUE. Otherwise,
|
||||
* return FALSE to indicate that there are no more free pages.
|
||||
*/
|
||||
int
|
||||
pmap_next_page(paddr)
|
||||
paddr_t *paddr;
|
||||
{
|
||||
static int lastidx = -1;
|
||||
|
||||
if (lastidx < 0
|
||||
|| nextavail >= avail[lastidx].start + avail[lastidx].size) {
|
||||
if (avail[++lastidx].size == 0)
|
||||
return FALSE;
|
||||
nextavail = avail[lastidx].start;
|
||||
}
|
||||
*paddr = nextavail;
|
||||
nextavail += NBPG;
|
||||
return TRUE;
|
||||
}
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Create and return a physical map.
|
||||
*/
|
||||
|
|
@ -1092,13 +1028,8 @@ pmap_enter(pm, va, pa, prot, wired)
|
|||
pte.pte_lo = (pa & PTE_RPGN) | PTE_M | PTE_I | PTE_G;
|
||||
|
||||
managed = 0;
|
||||
#if defined(MACHINE_NEW_NONCONTIG)
|
||||
if (vm_physseg_find(atop(pa), NULL) != -1)
|
||||
managed = 1;
|
||||
#else
|
||||
if (pmap_page_index(pa) != -1)
|
||||
managed = 1;
|
||||
#endif
|
||||
for (mp = mem; mp->size; mp++) {
|
||||
if (pa >= mp->start && pa < mp->start + mp->size) {
|
||||
pte.pte_lo &= ~(PTE_I | PTE_G);
|
||||
|
|
|
|||
Loading…
Reference in New Issue