Changeset 1c01e6c in mainline for kernel/arch/amd64/src/mm/page.c
- Timestamp:
- 2011-11-26T16:37:37Z (12 years ago)
- Branches:
- lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export
- Children:
- 056ddc30
- Parents:
- 9aed144
- File:
-
- 1 edited
Legend:
- Unmodified
- Added
- Removed
-
kernel/arch/amd64/src/mm/page.c
r9aed144 r1c01e6c 98 98 } 99 99 100 uintptr_t hw_map(uintptr_t physaddr, size_t size)101 {102 if (last_frame + ALIGN_UP(size, PAGE_SIZE) > KA2PA(KERNEL_ADDRESS_SPACE_END_ARCH))103 panic("Unable to map physical memory %p (%zu bytes).",104 (void *) physaddr, size);105 106 uintptr_t virtaddr = PA2KA(last_frame);107 pfn_t i;108 109 page_table_lock(AS_KERNEL, true);110 111 for (i = 0; i < ADDR2PFN(ALIGN_UP(size, PAGE_SIZE)); i++)112 page_mapping_insert(AS_KERNEL, virtaddr + PFN2ADDR(i), physaddr + PFN2ADDR(i), PAGE_NOT_CACHEABLE | PAGE_WRITE);113 114 page_table_unlock(AS_KERNEL, true);115 116 last_frame = ALIGN_UP(last_frame + size, FRAME_SIZE);117 118 return virtaddr;119 }120 121 100 /** @} 122 101 */
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