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| Rev 1888 | Rev 1903 | ||
|---|---|---|---|
| Line 38... | Line 38... | ||
| 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 | 44 | ||
| - | 45 | #ifdef CONFIG_SMP |
|
| - | 46 | /** Entries locked in DTLB of BSP. |
|
| - | 47 | * |
|
| - | 48 | * Application processors need to have the same locked entries |
|
| - | 49 | * in their DTLBs as the bootstrap processor. |
|
| - | 50 | */ |
|
| - | 51 | static struct { |
|
| - | 52 | uintptr_t virt_page; |
|
| - | 53 | uintptr_t phys_page; |
|
| - | 54 | int pagesize_code; |
|
| - | 55 | } bsp_locked_dtlb_entry[DTLB_ENTRY_COUNT]; |
|
| - | 56 | ||
| - | 57 | /** Number of entries in bsp_locked_dtlb_entry array. */ |
|
| - | 58 | static count_t bsp_locked_dtlb_entries = 0; |
|
| - | 59 | #endif /* CONFIG_SMP */ |
|
| - | 60 | ||
| - | 61 | /** Perform sparc64 specific initialization of paging. */ |
|
| 44 | void page_arch_init(void) |
62 | void page_arch_init(void) |
| 45 | { |
63 | { |
| - | 64 | if (config.cpu_active == 1) { |
|
| 46 | page_mapping_operations = &ht_mapping_operations; |
65 | page_mapping_operations = &ht_mapping_operations; |
| - | 66 | } else { |
|
| - | 67 | ||
| - | 68 | #ifdef CONFIG_SMP |
|
| - | 69 | int i; |
|
| - | 70 | ||
| - | 71 | /* |
|
| - | 72 | * Copy locked DTLB entries from the BSP. |
|
| - | 73 | */ |
|
| - | 74 | for (i = 0; i < bsp_locked_dtlb_entries; i++) { |
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| - | 75 | dtlb_insert_mapping(bsp_locked_dtlb_entry[i].virt_page, |
|
| - | 76 | bsp_locked_dtlb_entry[i].phys_page, bsp_locked_dtlb_entry[i].pagesize_code, |
|
| - | 77 | true, false); |
|
| - | 78 | } |
|
| - | 79 | #endif |
|
| - | 80 | ||
| - | 81 | } |
|
| 47 | } |
82 | } |
| 48 | 83 | ||
| 49 | /** Map memory-mapped device into virtual memory. |
84 | /** Map memory-mapped device into virtual memory. |
| 50 | * |
85 | * |
| 51 | * So far, only DTLB is used to map devices into memory. |
86 | * So far, only DTLB is used to map devices into memory. |
| Line 65... | Line 100... | ||
| 65 | uintptr_t hw_map(uintptr_t physaddr, size_t size) |
100 | uintptr_t hw_map(uintptr_t physaddr, size_t size) |
| 66 | { |
101 | { |
| 67 | unsigned int order; |
102 | unsigned int order; |
| 68 | int i; |
103 | int i; |
| 69 | 104 | ||
| - | 105 | ASSERT(config.cpu_active == 1); |
|
| - | 106 | ||
| 70 | struct { |
107 | struct { |
| 71 | int pagesize; |
108 | int pagesize_code; |
| 72 | size_t increment; |
109 | size_t increment; |
| 73 | count_t count; |
110 | count_t count; |
| 74 | } sizemap[] = { |
111 | } sizemap[] = { |
| 75 | { PAGESIZE_8K, 0, 1 }, /* 8K */ |
112 | { PAGESIZE_8K, 0, 1 }, /* 8K */ |
| 76 | { PAGESIZE_8K, PAGE_SIZE, 2 }, /* 16K */ |
113 | { PAGESIZE_8K, PAGE_SIZE, 2 }, /* 16K */ |
| Line 99... | Line 136... | ||
| 99 | */ |
136 | */ |
| 100 | ASSERT(last_frame); |
137 | ASSERT(last_frame); |
| 101 | uintptr_t virtaddr = ALIGN_UP(last_frame, 1<<(order + FRAME_WIDTH)); |
138 | uintptr_t virtaddr = ALIGN_UP(last_frame, 1<<(order + FRAME_WIDTH)); |
| 102 | last_frame = ALIGN_UP(virtaddr + size, 1<<(order + FRAME_WIDTH)); |
139 | last_frame = ALIGN_UP(virtaddr + size, 1<<(order + FRAME_WIDTH)); |
| 103 | 140 | ||
| 104 | for (i = 0; i < sizemap[order].count; i++) |
141 | for (i = 0; i < sizemap[order].count; i++) { |
| - | 142 | /* |
|
| - | 143 | * First, insert the mapping into DTLB. |
|
| - | 144 | */ |
|
| 105 | dtlb_insert_mapping(virtaddr + i*sizemap[order].increment, |
145 | dtlb_insert_mapping(virtaddr + i*sizemap[order].increment, |
| 106 | physaddr + i*sizemap[order].increment, |
146 | physaddr + i*sizemap[order].increment, |
| 107 | sizemap[order].pagesize, true, false); |
147 | sizemap[order].pagesize_code, true, false); |
| - | 148 | ||
| - | 149 | #ifdef CONFIG_SMP |
|
| - | 150 | /* |
|
| - | 151 | * Second, save the information about the mapping for APs. |
|
| - | 152 | */ |
|
| - | 153 | bsp_locked_dtlb_entry[bsp_locked_dtlb_entries].virt_page = virtaddr + i*sizemap[order].increment; |
|
| - | 154 | bsp_locked_dtlb_entry[bsp_locked_dtlb_entries].phys_page = physaddr + i*sizemap[order].increment; |
|
| - | 155 | bsp_locked_dtlb_entry[bsp_locked_dtlb_entries].pagesize_code = sizemap[order].pagesize_code; |
|
| - | 156 | bsp_locked_dtlb_entries++; |
|
| - | 157 | #endif |
|
| - | 158 | } |
|
| 108 | 159 | ||
| 109 | return virtaddr; |
160 | return virtaddr; |
| 110 | } |
161 | } |
| 111 | 162 | ||
| 112 | /** @} |
163 | /** @} |