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29 | #include <arch/mm/page.h> |
29 | #include <arch/mm/page.h> |
30 | #include <arch/mm/tlb.h> |
30 | #include <arch/mm/tlb.h> |
31 | #include <genarch/mm/page_ht.h> |
31 | #include <genarch/mm/page_ht.h> |
32 | #include <mm/frame.h> |
32 | #include <mm/frame.h> |
33 | #include <bitops.h> |
33 | #include <bitops.h> |
- | 34 | #include <debug.h> |
|
34 | 35 | ||
35 | void page_arch_init(void) |
36 | void page_arch_init(void) |
36 | { |
37 | { |
37 | page_mapping_operations = &ht_mapping_operations; |
38 | page_mapping_operations = &ht_mapping_operations; |
38 | } |
39 | } |
39 | 40 | ||
40 | __address hw_map(__address physaddr, size_t size) |
41 | __address hw_map(__address physaddr, size_t size) |
41 | { |
42 | { |
42 | unsigned int order; |
43 | unsigned int order; |
- | 44 | int i; |
|
- | 45 | ||
- | 46 | struct { |
|
- | 47 | int pagesize; |
|
- | 48 | size_t increment; |
|
- | 49 | count_t count; |
|
- | 50 | } sizemap[] = { |
|
- | 51 | { PAGESIZE_8K, 0, 1 }, /* 8K */ |
|
- | 52 | { PAGESIZE_8K, PAGE_SIZE, 2 }, /* 16K */ |
|
- | 53 | { PAGESIZE_8K, PAGE_SIZE, 4 }, /* 32K */ |
|
- | 54 | { PAGESIZE_64K, 0, 1}, /* 64K */ |
|
- | 55 | { PAGESIZE_64K, 8*PAGE_SIZE, 2 }, /* 128K */ |
|
- | 56 | { PAGESIZE_64K, 8*PAGE_SIZE, 4 }, /* 256K */ |
|
- | 57 | { PAGESIZE_512K, 0, 1 }, /* 512K */ |
|
- | 58 | { PAGESIZE_512K, 64*PAGE_SIZE, 2 }, /* 1M */ |
|
- | 59 | { PAGESIZE_512K, 64*PAGE_SIZE, 4 }, /* 2M */ |
|
- | 60 | { PAGESIZE_4M, 0, 1 } /* 4M */ |
|
- | 61 | }; |
|
- | 62 | ||
- | 63 | ASSERT(size <= 4*1024*1024); |
|
43 | 64 | ||
44 | if (size <= FRAME_SIZE) |
65 | if (size <= FRAME_SIZE) |
45 | order = 0; |
66 | order = 0; |
46 | else |
67 | else |
47 | order = (fnzb32(size - 1) + 1) - FRAME_WIDTH; |
68 | order = (fnzb32(size - 1) + 1) - FRAME_WIDTH; |
48 | 69 | ||
49 | __address virtaddr = PA2KA(PFN2ADDR(frame_alloc(order, FRAME_KA))); |
70 | __address virtaddr = PA2KA(PFN2ADDR(frame_alloc(order, FRAME_KA))); |
50 | 71 | ||
- | 72 | for (i = 0; i < sizemap[order].count; i++) |
|
51 | dtlb_insert_mapping(virtaddr, physaddr, PAGESIZE_512K, true, false); |
73 | dtlb_insert_mapping(virtaddr + i*sizemap[order].increment, |
- | 74 | physaddr + i*sizemap[order].increment, |
|
52 | dtlb_insert_mapping(virtaddr + 512 * 1024, physaddr + 512 * 1024, PAGESIZE_512K, true, false); |
75 | sizemap[order].pagesize, true, false); |
53 | 76 | ||
54 | return virtaddr; |
77 | return virtaddr; |
55 | } |
78 | } |