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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 | /* |
40 | /* |
41 | * On the TLB and TSB level, we still use 8K pages, which are supported by the |
41 | * On the TLB and TSB level, we still use 8K pages, which are supported by the |
42 | * MMU. |
42 | * MMU. |
43 | */ |
43 | */ |
44 | #define MMU_PAGE_WIDTH MMU_FRAME_WIDTH |
44 | #define MMU_PAGE_WIDTH MMU_FRAME_WIDTH |
45 | #define MMU_PAGE_SIZE MMU_FRAME_SIZE |
45 | #define MMU_PAGE_SIZE MMU_FRAME_SIZE |
46 | 46 | ||
47 | /* |
47 | /* |
48 | * On the page table level, we use 16K pages. 16K pages are not supported by |
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. |
49 | * the MMU but we emulate them with pairs of 8K pages. |
50 | */ |
50 | */ |
51 | #define PAGE_WIDTH FRAME_WIDTH |
51 | #define PAGE_WIDTH FRAME_WIDTH |
52 | #define PAGE_SIZE FRAME_SIZE |
52 | #define PAGE_SIZE FRAME_SIZE |
53 | 53 | ||
54 | #define MMU_PAGES_PER_PAGE (1 << (PAGE_WIDTH - MMU_PAGE_WIDTH)) |
54 | #define MMU_PAGES_PER_PAGE (1 << (PAGE_WIDTH - MMU_PAGE_WIDTH)) |
55 | 55 | ||
56 | /* |
- | |
57 | * With 16K pages, there is only one page color. |
- | |
58 | */ |
- | |
59 | #define PAGE_COLOR_BITS 0 /**< 14 - 14; 2^14 == 16K == alias boundary. */ |
- | |
60 | - | ||
61 | #ifdef KERNEL |
56 | #ifdef KERNEL |
62 | 57 | ||
63 | #ifndef __ASM__ |
58 | #ifndef __ASM__ |
64 | 59 | ||
65 | #include <arch/interrupt.h> |
60 | #include <arch/interrupt.h> |
66 | 61 | ||
67 | extern uintptr_t physmem_base; |
62 | extern uintptr_t physmem_base; |
68 | 63 | ||
69 | #define KA2PA(x) (((uintptr_t) (x)) + physmem_base) |
64 | #define KA2PA(x) (((uintptr_t) (x)) + physmem_base) |
70 | #define PA2KA(x) (((uintptr_t) (x)) - physmem_base) |
65 | #define PA2KA(x) (((uintptr_t) (x)) - physmem_base) |
71 | 66 | ||
72 | typedef union { |
67 | typedef union { |
73 | uintptr_t address; |
68 | uintptr_t address; |
74 | struct { |
69 | struct { |
75 | uint64_t vpn : 51; /**< Virtual Page Number. */ |
70 | uint64_t vpn : 51; /**< Virtual Page Number. */ |
76 | unsigned offset : 13; /**< Offset. */ |
71 | unsigned offset : 13; /**< Offset. */ |
77 | } __attribute__ ((packed)); |
72 | } __attribute__ ((packed)); |
78 | } page_address_t; |
73 | } page_address_t; |
79 | 74 | ||
80 | extern void page_arch_init(void); |
75 | extern void page_arch_init(void); |
81 | 76 | ||
82 | #endif /* !def __ASM__ */ |
77 | #endif /* !def __ASM__ */ |
83 | 78 | ||
84 | #endif /* KERNEL */ |
79 | #endif /* KERNEL */ |
85 | 80 | ||
86 | #endif |
81 | #endif |
87 | 82 | ||
88 | /** @} |
83 | /** @} |
89 | */ |
84 | */ |
90 | 85 |