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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_FRAME_H_ |
35 | #ifndef KERN_sparc64_FRAME_H_ |
36 | #define KERN_sparc64_FRAME_H_ |
36 | #define KERN_sparc64_FRAME_H_ |
37 | 37 | ||
- | 38 | /* |
|
- | 39 | * Page size supported by the MMU. |
|
- | 40 | * For 8K there is the nasty illegal virtual aliasing problem. |
|
- | 41 | * Therefore, the kernel uses 8K only internally on the TLB and TSB levels. |
|
- | 42 | */ |
|
- | 43 | #define MMU_FRAME_WIDTH 13 /* 8K */ |
|
- | 44 | #define MMU_FRAME_SIZE (1 << MMU_FRAME_WIDTH) |
|
- | 45 | ||
- | 46 | /* |
|
- | 47 | * Page size exported to the generic memory management subsystems. |
|
- | 48 | * This page size is not directly supported by the MMU, but we can emulate |
|
- | 49 | * each 16K page with a pair of adjacent 8K pages. |
|
- | 50 | */ |
|
38 | #define FRAME_WIDTH 13 /* 8K */ |
51 | #define FRAME_WIDTH 14 /* 16K */ |
39 | #define FRAME_SIZE (1 << FRAME_WIDTH) |
52 | #define FRAME_SIZE (1 << FRAME_WIDTH) |
40 | 53 | ||
41 | #ifdef KERNEL |
54 | #ifdef KERNEL |
42 | #ifndef __ASM__ |
55 | #ifndef __ASM__ |
43 | 56 | ||
44 | #include <arch/types.h> |
57 | #include <arch/types.h> |
45 | 58 | ||
46 | union frame_address { |
59 | union frame_address { |
47 | uintptr_t address; |
60 | uintptr_t address; |
48 | struct { |
61 | struct { |
49 | unsigned : 23; |
62 | unsigned : 23; |
50 | uint64_t pfn : 28; /**< Physical Frame Number. */ |
63 | uint64_t pfn : 28; /**< Physical Frame Number. */ |
51 | unsigned offset : 13; /**< Offset. */ |
64 | unsigned offset : 13; /**< Offset. */ |
52 | } __attribute__ ((packed)); |
65 | } __attribute__ ((packed)); |
53 | }; |
66 | }; |
54 | 67 | ||
55 | typedef union frame_address frame_address_t; |
68 | typedef union frame_address frame_address_t; |
56 | 69 | ||
57 | extern uintptr_t last_frame; |
70 | extern uintptr_t last_frame; |
58 | extern void frame_arch_init(void); |
71 | extern void frame_arch_init(void); |
59 | 72 | ||
60 | #endif |
73 | #endif |
61 | #endif |
74 | #endif |
62 | 75 | ||
63 | #endif |
76 | #endif |
64 | 77 | ||
65 | /** @} |
78 | /** @} |
66 | */ |
79 | */ |
67 | 80 |