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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 | #include <arch/mm/frame.h> |
35 | #include <arch/mm/frame.h> |
36 | #include <mm/frame.h> |
36 | #include <mm/frame.h> |
37 | #include <arch/boot/boot.h> |
37 | #include <arch/boot/boot.h> |
38 | #include <arch/types.h> |
38 | #include <arch/types.h> |
39 | #include <config.h> |
39 | #include <config.h> |
40 | #include <align.h> |
40 | #include <align.h> |
41 | #include <macros.h> |
41 | #include <macros.h> |
42 | 42 | ||
43 | uintptr_t last_frame = NULL; |
43 | uintptr_t last_frame = NULL; |
44 | 44 | ||
45 | /** Create memory zones according to information stored in bootinfo. |
45 | /** Create memory zones according to information stored in bootinfo. |
46 | * |
46 | * |
47 | * Walk the bootinfo memory map and create frame zones according to it. |
47 | * Walk the bootinfo memory map and create frame zones according to it. |
48 | */ |
48 | */ |
49 | void frame_arch_init(void) |
49 | void frame_arch_init(void) |
50 | { |
50 | { |
51 | int i; |
51 | int i; |
52 | pfn_t confdata; |
52 | pfn_t confdata; |
53 | 53 | ||
54 | if (config.cpu_active == 1) { |
54 | if (config.cpu_active == 1) { |
55 | for (i = 0; i < bootinfo.memmap.count; i++) { |
55 | for (i = 0; i < bootinfo.memmap.count; i++) { |
56 | uintptr_t start = bootinfo.memmap.zones[i].start; |
56 | uintptr_t start = bootinfo.memmap.zones[i].start; |
57 | size_t size = bootinfo.memmap.zones[i].size; |
57 | size_t size = bootinfo.memmap.zones[i].size; |
58 | 58 | ||
59 | /* |
59 | /* |
60 | * The memmap is created by HelenOS boot loader. |
60 | * The memmap is created by HelenOS boot loader. |
61 | * It already contains no holes. |
61 | * It already contains no holes. |
62 | */ |
62 | */ |
63 | 63 | ||
64 | confdata = ADDR2PFN(start); |
64 | confdata = ADDR2PFN(start); |
65 | if (confdata == ADDR2PFN(KA2PA(PFN2ADDR(0)))) |
65 | if (confdata == ADDR2PFN(KA2PA(PFN2ADDR(0)))) |
66 | confdata = ADDR2PFN(KA2PA(PFN2ADDR(2))); |
66 | confdata = ADDR2PFN(KA2PA(PFN2ADDR(2))); |
67 | zone_create(ADDR2PFN(start), |
67 | zone_create(ADDR2PFN(start), |
68 | SIZE2FRAMES(ALIGN_DOWN(size, FRAME_SIZE)), |
68 | SIZE2FRAMES(ALIGN_DOWN(size, FRAME_SIZE)), |
69 | confdata, 0); |
69 | confdata, 0); |
70 | last_frame = max(last_frame, start + ALIGN_UP(size, |
70 | last_frame = max(last_frame, start + ALIGN_UP(size, |
71 | FRAME_SIZE)); |
71 | FRAME_SIZE)); |
72 | } |
72 | } |
73 | 73 | ||
74 | /* |
74 | /* |
75 | * On sparc64, physical memory can start on a non-zero address. |
75 | * On sparc64, physical memory can start on a non-zero address. |
76 | * The generic frame_init() only marks PFN 0 as not free, so we |
76 | * The generic frame_init() only marks PFN 0 as not free, so we |
77 | * must mark the physically first frame not free explicitly |
77 | * must mark the physically first frame not free explicitly |
78 | * here, no matter what is its address. |
78 | * here, no matter what is its address. |
79 | */ |
79 | */ |
80 | frame_mark_unavailable(ADDR2PFN(KA2PA(PFN2ADDR(0))), 1); |
80 | frame_mark_unavailable(ADDR2PFN(KA2PA(PFN2ADDR(0))), 1); |
81 | } |
81 | } |
82 | 82 | ||
83 | } |
83 | } |
84 | 84 | ||
85 | /** @} |
85 | /** @} |
86 | */ |
86 | */ |
87 | 87 |