Annotation of sys/arch/solbourne/include/pmap.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: pmap.h,v 1.1 2005/04/19 21:30:18 miod Exp $ */
2: /*
3: * Copyright (c) 2005, Miodrag Vallat
4: *
5: * Redistribution and use in source and binary forms, with or without
6: * modification, are permitted provided that the following conditions
7: * are met:
8: * 1. Redistributions of source code must retain the above copyright
9: * notice, this list of conditions and the following disclaimer.
10: * 2. Redistributions in binary form must reproduce the above copyright
11: * notice, this list of conditions and the following disclaimer in the
12: * documentation and/or other materials provided with the distribution.
13: *
14: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
16: * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
17: * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
18: * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
19: * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
20: * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
22: * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
23: * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
24: * POSSIBILITY OF SUCH DAMAGE.
25: */
26:
27: #ifndef _SOLBOURNE_PMAP_H_
28: #define _SOLBOURNE_PMAP_H_
29:
30: #include <machine/pte.h>
31:
32: /*
33: * PMAP structure
34: */
35: struct pmap {
36: pd_entry_t *pm_segtab; /* first level table */
37: paddr_t pm_psegtab; /* pa of above */
38:
39: int pm_refcount; /* reference count */
40: struct simplelock pm_lock;
41: struct pmap_statistics pm_stats; /* pmap statistics */
42: };
43:
44: typedef struct pmap *pmap_t;
45:
46: /*
47: * Extra constants passed in the low bits of pa in pmap_enter() to
48: * request specific memory attributes.
49: */
50:
51: #define PMAP_NC 1
52: #define PMAP_OBIO PMAP_NC
53: #define PMAP_BWS 2
54:
55: /*
56: * Macro to pass iospace bits in the low bits of pa in pmap_enter().
57: * Provided for source code compatibility - we don't need such bits.
58: */
59:
60: #define PMAP_IOENC(x) 0
61:
62: #ifdef _KERNEL
63:
64: extern struct pmap kernel_pmap_store;
65:
66: #define kvm_recache(addr, npages) kvm_setcache(addr, npages, 1)
67: #define kvm_uncache(addr, npages) kvm_setcache(addr, npages, 0)
68: #define pmap_copy(a,b,c,d,e) do { /* nothing */ } while (0)
69: #define pmap_deactivate(p) do { /* nothing */ } while (0)
70: #define pmap_kernel() (&kernel_pmap_store)
71: #define pmap_phys_address(frame) ptoa(frame)
72: #define pmap_resident_count(p) ((p)->pm_stats.resident_count)
73: #define pmap_update(p) do { /* nothing */ } while (0)
74: #define pmap_wired_count(p) ((p)->pm_stats.wired_count)
75:
76: #define PMAP_PREFER(fo, ap) pmap_prefer((fo), (ap))
77:
78: struct proc;
79: void kvm_setcache(caddr_t, int, int);
80: void switchexit(struct proc *); /* locore.s */
81: void pmap_activate(struct proc *);
82: void pmap_bootstrap(size_t);
83: void pmap_cache_enable(void);
84: void pmap_changeprot(pmap_t, vaddr_t, vm_prot_t, int);
85: boolean_t pmap_clear_modify(struct vm_page *);
86: boolean_t pmap_clear_reference(struct vm_page *);
87: void pmap_copy_page(struct vm_page *, struct vm_page *);
88: pmap_t pmap_create(void);
89: void pmap_destroy(pmap_t);
90: int pmap_enter(pmap_t, vaddr_t, paddr_t, vm_prot_t, int);
91: boolean_t pmap_extract(pmap_t, vaddr_t, paddr_t *);
92: void pmap_init(void);
93: boolean_t pmap_is_modified(struct vm_page *);
94: boolean_t pmap_is_referenced(struct vm_page *);
95: void pmap_kenter_pa(vaddr_t, paddr_t, vm_prot_t);
96: void pmap_kremove(vaddr_t, vsize_t);
97: vaddr_t pmap_map(vaddr_t, paddr_t, paddr_t, int);
98: int pmap_pa_exists(paddr_t);
99: void pmap_page_protect(struct vm_page *, vm_prot_t);
100: void pmap_prefer(vaddr_t, vaddr_t *);
101: void pmap_proc_iflush(struct proc *, vaddr_t, vsize_t);
102: void pmap_protect(pmap_t, vaddr_t, vaddr_t, vm_prot_t);
103: void pmap_reference(pmap_t);
104: void pmap_release(pmap_t);
105: void pmap_redzone(void);
106: void pmap_remove(pmap_t, vaddr_t, vaddr_t);
107: void pmap_unwire(pmap_t, vaddr_t);
108: void pmap_virtual_space(vaddr_t *, vaddr_t *);
109: void pmap_writetext(unsigned char *, int);
110: void pmap_zero_page(struct vm_page *);
111:
112: #endif /* _KERNEL */
113:
114: #endif /* _SOLBOURNE_PMAP_H_ */
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