tlb.h revision 97027 
1/*-
2 * Copyright (c) 2001 Jake Burkholder.
3 * All rights reserved.
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 AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: head/sys/sparc64/include/tlb.h 97027 2002-05-21 00:29:02Z jake $
27 */
28
29#ifndef	_MACHINE_TLB_H_
30#define	_MACHINE_TLB_H_
31
32#define	TLB_DAR_SLOT_SHIFT		(3)
33#define	TLB_DAR_SLOT(slot)		((slot) << TLB_DAR_SLOT_SHIFT)
34
35#define	TAR_VPN_SHIFT			(13)
36#define	TAR_CTX_MASK			((1 << TAR_VPN_SHIFT) - 1)
37
38#define	TLB_TAR_VA(va)			((va) & ~TAR_CTX_MASK)
39#define	TLB_TAR_CTX(ctx)		((ctx) & TAR_CTX_MASK)
40
41#define	TLB_DEMAP_ID_SHIFT		(4)
42#define	TLB_DEMAP_ID_PRIMARY		(0)
43#define	TLB_DEMAP_ID_SECONDARY		(1)
44#define	TLB_DEMAP_ID_NUCLEUS		(2)
45
46#define	TLB_DEMAP_TYPE_SHIFT		(6)
47#define	TLB_DEMAP_TYPE_PAGE		(0)
48#define	TLB_DEMAP_TYPE_CONTEXT		(1)
49
50#define	TLB_DEMAP_VA(va)		((va) & ~PAGE_MASK)
51#define	TLB_DEMAP_ID(id)		((id) << TLB_DEMAP_ID_SHIFT)
52#define	TLB_DEMAP_TYPE(type)		((type) << TLB_DEMAP_TYPE_SHIFT)
53
54#define	TLB_DEMAP_PAGE			(TLB_DEMAP_TYPE(TLB_DEMAP_TYPE_PAGE))
55#define	TLB_DEMAP_CONTEXT		(TLB_DEMAP_TYPE(TLB_DEMAP_TYPE_CONTEXT))
56
57#define	TLB_DEMAP_PRIMARY		(TLB_DEMAP_ID(TLB_DEMAP_ID_PRIMARY))
58#define	TLB_DEMAP_SECONDARY		(TLB_DEMAP_ID(TLB_DEMAP_ID_SECONDARY))
59#define	TLB_DEMAP_NUCLEUS		(TLB_DEMAP_ID(TLB_DEMAP_ID_NUCLEUS))
60
61#define	TLB_CTX_KERNEL			(0)
62#define	TLB_CTX_USER_MIN		(1)
63#define	TLB_CTX_USER_MAX		(8192)
64
65#define	TLB_DTLB			(1 << 0)
66#define	TLB_ITLB			(1 << 1)
67
68#define	MMU_SFSR_ASI_SHIFT		(16)
69#define	MMU_SFSR_FT_SHIFT		(7)
70#define	MMU_SFSR_E_SHIFT		(6)
71#define	MMU_SFSR_CT_SHIFT		(4)
72#define	MMU_SFSR_PR_SHIFT		(3)
73#define	MMU_SFSR_W_SHIFT		(2)
74#define	MMU_SFSR_OW_SHIFT		(1)
75#define	MMU_SFSR_FV_SHIFT		(0)
76
77#define	MMU_SFSR_ASI_SIZE		(8)
78#define	MMU_SFSR_FT_SIZE		(6)
79#define	MMU_SFSR_CT_SIZE		(2)
80
81#define	MMU_SFSR_W			(1L << MMU_SFSR_W_SHIFT)
82
83extern int kernel_tlb_slots;
84extern struct tte *kernel_ttes;
85
86void	tlb_context_demap(struct pmap *pm);
87void	tlb_page_demap(u_int tlb, struct pmap *pm, vm_offset_t va);
88void	tlb_range_demap(struct pmap *pm, vm_offset_t start, vm_offset_t end);
89
90#define	tlb_tte_demap(tp, pm) \
91	tlb_page_demap(TTE_GET_TLB(tp), pm, TTE_GET_VA(tp))
92
93#endif /* !_MACHINE_TLB_H_ */
94