Rev 2105 | Rev 3233 | Go to most recent revision | Only display areas with differences | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed
Rev 2105 | Rev 2141 | ||
---|---|---|---|
1 | /* |
1 | /* |
2 | * Copyright (c) 2005 Jakub Jermar |
2 | * Copyright (c) 2005 Jakub Jermar |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | /** @addtogroup sparc64mm |
29 | /** @addtogroup sparc64mm |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** @file |
32 | /** @file |
33 | */ |
33 | */ |
34 | 34 | ||
35 | #ifndef KERN_sparc64_PAGE_H_ |
35 | #ifndef KERN_sparc64_PAGE_H_ |
36 | #define KERN_sparc64_PAGE_H_ |
36 | #define KERN_sparc64_PAGE_H_ |
37 | 37 | ||
38 | #include <arch/mm/frame.h> |
38 | #include <arch/mm/frame.h> |
39 | 39 | ||
- | 40 | /* |
|
- | 41 | * On the TLB and TSB level, we still use 8K pages, which are supported by the |
|
- | 42 | * MMU. |
|
- | 43 | */ |
|
- | 44 | #define MMU_PAGE_WIDTH MMU_FRAME_WIDTH |
|
- | 45 | #define MMU_PAGE_SIZE MMU_FRAME_SIZE |
|
- | 46 | ||
- | 47 | /* |
|
- | 48 | * On the page table level, we use 16K pages. 16K pages are not supported by |
|
- | 49 | * the MMU but we emulate them with pairs of 8K pages. |
|
- | 50 | */ |
|
40 | #define PAGE_WIDTH FRAME_WIDTH |
51 | #define PAGE_WIDTH FRAME_WIDTH |
41 | #define PAGE_SIZE FRAME_SIZE |
52 | #define PAGE_SIZE FRAME_SIZE |
42 | 53 | ||
- | 54 | #define MMU_PAGES_PER_PAGE (1 << (PAGE_WIDTH - MMU_PAGE_WIDTH)) |
|
- | 55 | ||
- | 56 | /* |
|
- | 57 | * With 16K pages, there is only one page color. |
|
- | 58 | */ |
|
43 | #define PAGE_COLOR_BITS 1 /**< 14 - 13; 2^14 == 16K == alias boundary. */ |
59 | #define PAGE_COLOR_BITS 0 /**< 14 - 14; 2^14 == 16K == alias boundary. */ |
44 | 60 | ||
45 | #ifdef KERNEL |
61 | #ifdef KERNEL |
46 | 62 | ||
47 | #ifndef __ASM__ |
63 | #ifndef __ASM__ |
48 | 64 | ||
49 | #include <arch/interrupt.h> |
65 | #include <arch/interrupt.h> |
50 | 66 | ||
51 | extern uintptr_t physmem_base; |
67 | extern uintptr_t physmem_base; |
52 | 68 | ||
53 | #define KA2PA(x) (((uintptr_t) (x)) + physmem_base) |
69 | #define KA2PA(x) (((uintptr_t) (x)) + physmem_base) |
54 | #define PA2KA(x) (((uintptr_t) (x)) - physmem_base) |
70 | #define PA2KA(x) (((uintptr_t) (x)) - physmem_base) |
55 | 71 | ||
56 | typedef union { |
72 | typedef union { |
57 | uintptr_t address; |
73 | uintptr_t address; |
58 | struct { |
74 | struct { |
59 | uint64_t vpn : 51; /**< Virtual Page Number. */ |
75 | uint64_t vpn : 51; /**< Virtual Page Number. */ |
60 | unsigned offset : 13; /**< Offset. */ |
76 | unsigned offset : 13; /**< Offset. */ |
61 | } __attribute__ ((packed)); |
77 | } __attribute__ ((packed)); |
62 | } page_address_t; |
78 | } page_address_t; |
63 | 79 | ||
64 | extern void page_arch_init(void); |
80 | extern void page_arch_init(void); |
65 | 81 | ||
66 | #endif /* !def __ASM__ */ |
82 | #endif /* !def __ASM__ */ |
67 | 83 | ||
68 | #endif /* KERNEL */ |
84 | #endif /* KERNEL */ |
69 | 85 | ||
70 | #endif |
86 | #endif |
71 | 87 | ||
72 | /** @} |
88 | /** @} |
73 | */ |
89 | */ |
74 | 90 |