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 113453 2003-04-13 21:54:58Z jake $
27 */
28
29#ifndef _MACHINE_TLB_H_
30#define _MACHINE_TLB_H_
31
32#define TLB_DIRECT_ADDRESS_BITS (43)
33#define TLB_DIRECT_PAGE_BITS (PAGE_SHIFT_4M)
34
35#define TLB_DIRECT_ADDRESS_MASK ((1UL << TLB_DIRECT_ADDRESS_BITS) - 1)
36#define TLB_DIRECT_PAGE_MASK ((1UL << TLB_DIRECT_PAGE_BITS) - 1)
37
38#define TLB_PHYS_TO_DIRECT(pa) \
39 ((pa) | VM_MIN_DIRECT_ADDRESS)
40#define TLB_DIRECT_TO_PHYS(va) \
41 ((va) & TLB_DIRECT_ADDRESS_MASK)
42#define TLB_DIRECT_TO_TTE_MASK \
43 (TD_V | TD_4M | (TLB_DIRECT_ADDRESS_MASK - TLB_DIRECT_PAGE_MASK))
44
45#define TLB_DAR_SLOT_SHIFT (3)
46#define TLB_DAR_SLOT(slot) ((slot) << TLB_DAR_SLOT_SHIFT)
47
48#define TAR_VPN_SHIFT (13)
49#define TAR_CTX_MASK ((1 << TAR_VPN_SHIFT) - 1)
50
51#define TLB_TAR_VA(va) ((va) & ~TAR_CTX_MASK)
52#define TLB_TAR_CTX(ctx) ((ctx) & TAR_CTX_MASK)
53
54#define TLB_DEMAP_ID_SHIFT (4)
55#define TLB_DEMAP_ID_PRIMARY (0)
56#define TLB_DEMAP_ID_SECONDARY (1)
57#define TLB_DEMAP_ID_NUCLEUS (2)
58
59#define TLB_DEMAP_TYPE_SHIFT (6)
60#define TLB_DEMAP_TYPE_PAGE (0)
61#define TLB_DEMAP_TYPE_CONTEXT (1)
62
63#define TLB_DEMAP_VA(va) ((va) & ~PAGE_MASK)
64#define TLB_DEMAP_ID(id) ((id) << TLB_DEMAP_ID_SHIFT)
65#define TLB_DEMAP_TYPE(type) ((type) << TLB_DEMAP_TYPE_SHIFT)
66
67#define TLB_DEMAP_PAGE (TLB_DEMAP_TYPE(TLB_DEMAP_TYPE_PAGE))
68#define TLB_DEMAP_CONTEXT (TLB_DEMAP_TYPE(TLB_DEMAP_TYPE_CONTEXT))
69
70#define TLB_DEMAP_PRIMARY (TLB_DEMAP_ID(TLB_DEMAP_ID_PRIMARY))
71#define TLB_DEMAP_SECONDARY (TLB_DEMAP_ID(TLB_DEMAP_ID_SECONDARY))
72#define TLB_DEMAP_NUCLEUS (TLB_DEMAP_ID(TLB_DEMAP_ID_NUCLEUS))
73
74#define TLB_CTX_KERNEL (0)
75#define TLB_CTX_USER_MIN (1)
76#define TLB_CTX_USER_MAX (8192)
77
78#define MMU_SFSR_ASI_SHIFT (16)
79#define MMU_SFSR_FT_SHIFT (7)
80#define MMU_SFSR_E_SHIFT (6)
81#define MMU_SFSR_CT_SHIFT (4)
82#define MMU_SFSR_PR_SHIFT (3)
83#define MMU_SFSR_W_SHIFT (2)
84#define MMU_SFSR_OW_SHIFT (1)
85#define MMU_SFSR_FV_SHIFT (0)
86
87#define MMU_SFSR_ASI_SIZE (8)
88#define MMU_SFSR_FT_SIZE (6)
89#define MMU_SFSR_CT_SIZE (2)
90
91#define MMU_SFSR_GET_ASI(sfsr) \
92 (((sfsr) >> MMU_SFSR_ASI_SHIFT) & ((1UL << MMU_SFSR_ASI_SIZE) - 1))
93#define MMU_SFSR_W (1UL << MMU_SFSR_W_SHIFT)
94#define MMU_SFSR_FV (1UL << MMU_SFSR_FV_SHIFT)
95
96typedef void tlb_flush_user_t(void);
97
98struct pmap;
99struct tlb_entry;
100
101extern int kernel_tlb_slots;
102extern struct tlb_entry *kernel_tlbs;
103
104void tlb_context_demap(struct pmap *pm);
105void tlb_page_demap(struct pmap *pm, vm_offset_t va);
106void tlb_range_demap(struct pmap *pm, vm_offset_t start, vm_offset_t end);
107
108tlb_flush_user_t cheetah_tlb_flush_user;
109tlb_flush_user_t spitfire_tlb_flush_user;
110
111extern tlb_flush_user_t *tlb_flush_user;
112
113#endif /* !_MACHINE_TLB_H_ */
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 113453 2003-04-13 21:54:58Z jake $
27 */
28
29#ifndef _MACHINE_TLB_H_
30#define _MACHINE_TLB_H_
31
32#define TLB_DIRECT_ADDRESS_BITS (43)
33#define TLB_DIRECT_PAGE_BITS (PAGE_SHIFT_4M)
34
35#define TLB_DIRECT_ADDRESS_MASK ((1UL << TLB_DIRECT_ADDRESS_BITS) - 1)
36#define TLB_DIRECT_PAGE_MASK ((1UL << TLB_DIRECT_PAGE_BITS) - 1)
37
38#define TLB_PHYS_TO_DIRECT(pa) \
39 ((pa) | VM_MIN_DIRECT_ADDRESS)
40#define TLB_DIRECT_TO_PHYS(va) \
41 ((va) & TLB_DIRECT_ADDRESS_MASK)
42#define TLB_DIRECT_TO_TTE_MASK \
43 (TD_V | TD_4M | (TLB_DIRECT_ADDRESS_MASK - TLB_DIRECT_PAGE_MASK))
44
45#define TLB_DAR_SLOT_SHIFT (3)
46#define TLB_DAR_SLOT(slot) ((slot) << TLB_DAR_SLOT_SHIFT)
47
48#define TAR_VPN_SHIFT (13)
49#define TAR_CTX_MASK ((1 << TAR_VPN_SHIFT) - 1)
50
51#define TLB_TAR_VA(va) ((va) & ~TAR_CTX_MASK)
52#define TLB_TAR_CTX(ctx) ((ctx) & TAR_CTX_MASK)
53
54#define TLB_DEMAP_ID_SHIFT (4)
55#define TLB_DEMAP_ID_PRIMARY (0)
56#define TLB_DEMAP_ID_SECONDARY (1)
57#define TLB_DEMAP_ID_NUCLEUS (2)
58
59#define TLB_DEMAP_TYPE_SHIFT (6)
60#define TLB_DEMAP_TYPE_PAGE (0)
61#define TLB_DEMAP_TYPE_CONTEXT (1)
62
63#define TLB_DEMAP_VA(va) ((va) & ~PAGE_MASK)
64#define TLB_DEMAP_ID(id) ((id) << TLB_DEMAP_ID_SHIFT)
65#define TLB_DEMAP_TYPE(type) ((type) << TLB_DEMAP_TYPE_SHIFT)
66
67#define TLB_DEMAP_PAGE (TLB_DEMAP_TYPE(TLB_DEMAP_TYPE_PAGE))
68#define TLB_DEMAP_CONTEXT (TLB_DEMAP_TYPE(TLB_DEMAP_TYPE_CONTEXT))
69
70#define TLB_DEMAP_PRIMARY (TLB_DEMAP_ID(TLB_DEMAP_ID_PRIMARY))
71#define TLB_DEMAP_SECONDARY (TLB_DEMAP_ID(TLB_DEMAP_ID_SECONDARY))
72#define TLB_DEMAP_NUCLEUS (TLB_DEMAP_ID(TLB_DEMAP_ID_NUCLEUS))
73
74#define TLB_CTX_KERNEL (0)
75#define TLB_CTX_USER_MIN (1)
76#define TLB_CTX_USER_MAX (8192)
77
78#define MMU_SFSR_ASI_SHIFT (16)
79#define MMU_SFSR_FT_SHIFT (7)
80#define MMU_SFSR_E_SHIFT (6)
81#define MMU_SFSR_CT_SHIFT (4)
82#define MMU_SFSR_PR_SHIFT (3)
83#define MMU_SFSR_W_SHIFT (2)
84#define MMU_SFSR_OW_SHIFT (1)
85#define MMU_SFSR_FV_SHIFT (0)
86
87#define MMU_SFSR_ASI_SIZE (8)
88#define MMU_SFSR_FT_SIZE (6)
89#define MMU_SFSR_CT_SIZE (2)
90
91#define MMU_SFSR_GET_ASI(sfsr) \
92 (((sfsr) >> MMU_SFSR_ASI_SHIFT) & ((1UL << MMU_SFSR_ASI_SIZE) - 1))
93#define MMU_SFSR_W (1UL << MMU_SFSR_W_SHIFT)
94#define MMU_SFSR_FV (1UL << MMU_SFSR_FV_SHIFT)
95
96typedef void tlb_flush_user_t(void);
97
98struct pmap;
99struct tlb_entry;
100
101extern int kernel_tlb_slots;
102extern struct tlb_entry *kernel_tlbs;
103
104void tlb_context_demap(struct pmap *pm);
105void tlb_page_demap(struct pmap *pm, vm_offset_t va);
106void tlb_range_demap(struct pmap *pm, vm_offset_t start, vm_offset_t end);
107
108tlb_flush_user_t cheetah_tlb_flush_user;
109tlb_flush_user_t spitfire_tlb_flush_user;
110
111extern tlb_flush_user_t *tlb_flush_user;
112
113#endif /* !_MACHINE_TLB_H_ */