Annotation of sys/arch/m88k/include/pmap.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: pmap.h,v 1.9 2005/12/11 21:45:28 miod Exp $ */
2: /*
3: * Mach Operating System
4: * Copyright (c) 1991 Carnegie Mellon University
5: * Copyright (c) 1991 OMRON Corporation
6: * All Rights Reserved.
7: *
8: * Permission to use, copy, modify and distribute this software and its
9: * documentation is hereby granted, provided that both the copyright
10: * notice and this permission notice appear in all copies of the
11: * software, derivative works or modified versions, and any portions
12: * thereof, and that both notices appear in supporting documentation.
13: *
14: */
15: #ifndef _M88K_PMAP_H_
16: #define _M88K_PMAP_H_
17:
18: #include <machine/mmu.h>
19:
20: /*
21: * PMAP structure
22: */
23:
24: struct pmap {
25: sdt_entry_t *pm_stab; /* virtual pointer to sdt */
26: apr_t pm_apr;
27: int pm_count; /* reference count */
28: /* cpus using of this pmap; NCPU must be <= 32 */
29: u_int32_t pm_cpus;
30: #ifdef MULTIPROCESSOR
31: __cpu_simple_lock_t pm_lock;
32: #endif
33: struct pmap_statistics pm_stats; /* pmap statistics */
34: };
35:
36: /* The PV (Physical to virtual) List.
37: *
38: * For each vm_page_t, pmap keeps a list of all currently valid virtual
39: * mappings of that page. An entry is a pv_entry_t; the list is the
40: * pv_head_table. This is used by things like pmap_remove, when we must
41: * find and remove all mappings for a particular physical page.
42: */
43: /* XXX - struct pv_entry moved to vmparam.h because of include ordering issues */
44:
45: typedef struct pmap *pmap_t;
46: typedef struct pv_entry *pv_entry_t;
47:
48: #ifdef _KERNEL
49:
50: extern pmap_t kernel_pmap;
51: extern struct pmap kernel_pmap_store;
52: extern caddr_t vmmap;
53:
54: #define pmap_kernel() (&kernel_pmap_store)
55: #define pmap_resident_count(pmap) ((pmap)->pm_stats.resident_count)
56: #define pmap_wired_count(pmap) ((pmap)->pm_stats.wired_count)
57: #define pmap_phys_address(frame) ((paddr_t)(ptoa(frame)))
58:
59: #define pmap_copy(dp,sp,d,l,s) do { /* nothing */ } while (0)
60: #define pmap_update(pmap) do { /* nothing (yet) */ } while (0)
61:
62: #define pmap_clear_modify(pg) pmap_unsetbit(pg, PG_M)
63: #define pmap_clear_reference(pg) pmap_unsetbit(pg, PG_U)
64:
65: void pmap_bootstrap(vaddr_t);
66: void pmap_bootstrap_cpu(cpuid_t);
67: void pmap_cache_ctrl(pmap_t, vaddr_t, vaddr_t, u_int);
68: void pmap_proc_iflush(struct proc *, vaddr_t, vsize_t);
69: #define pmap_unuse_final(p) /* nothing */
70: boolean_t pmap_unsetbit(struct vm_page *, int);
71:
72: #endif /* _KERNEL */
73:
74: #endif /* _M88K_PMAP_H_ */
CVSweb