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1 | /* |
1 | /* |
2 | * Copyright (c) 2009 Jakub Jermar |
2 | * Copyright (c) 2009 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/page.h> |
35 | #include <arch/mm/page.h> |
36 | #include <arch/mm/tlb.h> |
36 | #include <arch/mm/tlb.h> |
37 | #include <genarch/mm/page_ht.h> |
37 | #include <genarch/mm/page_ht.h> |
38 | #include <mm/frame.h> |
38 | #include <mm/frame.h> |
39 | #include <arch/mm/frame.h> |
39 | #include <arch/mm/frame.h> |
40 | #include <bitops.h> |
40 | #include <bitops.h> |
41 | #include <debug.h> |
41 | #include <debug.h> |
42 | #include <align.h> |
42 | #include <align.h> |
43 | #include <config.h> |
43 | #include <config.h> |
44 | 44 | ||
45 | /** Perform sparc64 specific initialization of paging. */ |
45 | /** Perform sparc64 specific initialization of paging. */ |
46 | void page_arch_init(void) |
46 | void page_arch_init(void) |
47 | { |
47 | { |
48 | if (config.cpu_active == 1) |
48 | if (config.cpu_active == 1) |
49 | page_mapping_operations = &ht_mapping_operations; |
49 | page_mapping_operations = &ht_mapping_operations; |
50 | } |
50 | } |
51 | 51 | ||
52 | /** Map memory-mapped device into virtual memory. |
52 | /** Map memory-mapped device into virtual memory. |
53 | * |
53 | * |
54 | * We are currently using identity mapping for mapping device registers. |
54 | * We are currently using identity mapping for mapping device registers. |
55 | * |
55 | * |
56 | * @param physaddr Physical address of the page where the device is |
56 | * @param physaddr Physical address of the page where the device is |
57 | * located. |
57 | * located. |
58 | * @param size Size of the device's registers. |
58 | * @param size Size of the device's registers. |
59 | * |
59 | * |
60 | * @return Virtual address of the page where the device is mapped. |
60 | * @return Virtual address of the page where the device is mapped. |
61 | * |
61 | * |
62 | */ |
62 | */ |
63 | uintptr_t hw_map(uintptr_t physaddr, size_t size) |
63 | uintptr_t hw_map(uintptr_t physaddr, size_t size) |
64 | { |
64 | { |
65 | if (last_frame + ALIGN_UP(size, PAGE_SIZE) > KA2PA(KERNEL_ADDRESS_SPACE_END_ARCH)) |
- | |
66 | panic("Unable to map physical memory %p (%d bytes).", physaddr, size) |
- | |
67 | - | ||
68 | uintptr_t virtaddr = PA2KA(last_frame); |
- | |
69 | pfn_t i; |
- | |
70 | for (i = 0; i < ADDR2PFN(ALIGN_UP(size, PAGE_SIZE)); i++) { |
- | |
71 | uintptr_t addr = PFN2ADDR(i); |
- | |
72 | page_mapping_insert(AS_KERNEL, virtaddr + addr, physaddr + addr, PAGE_NOT_CACHEABLE | PAGE_WRITE); |
- | |
73 | } |
- | |
74 | - | ||
75 | last_frame = ALIGN_UP(last_frame + size, FRAME_SIZE); |
- | |
76 | - | ||
77 | return virtaddr; |
65 | return PA2KA(physaddr); |
78 | } |
66 | } |
79 | 67 | ||
80 | /** @} |
68 | /** @} |
81 | */ |
69 | */ |
82 | 70 |