Changes in kernel/generic/src/mm/km.c [1ccd0aa:f7f47a7] in mainline
- File:
-
- 1 edited
Legend:
- Unmodified
- Added
- Removed
-
kernel/generic/src/mm/km.c
r1ccd0aa rf7f47a7 46 46 #include <debug.h> 47 47 #include <arch.h> 48 #include <align.h>49 #include <macros.h>50 #include <bitops.h>51 48 52 49 static ra_arena_t *km_ni_arena; … … 123 120 ra_free(km_ni_arena, page, size); 124 121 } 125 126 uintptr_t km_map(uintptr_t paddr, size_t size, unsigned int flags)127 {128 uintptr_t vaddr;129 size_t asize;130 size_t align;131 uintptr_t offs;132 133 asize = ALIGN_UP(size, PAGE_SIZE);134 align = ispwr2(size) ? size : (1U << (fnzb(size) + 1));135 vaddr = km_page_alloc(asize, max(PAGE_SIZE, align));136 137 page_table_lock(AS_KERNEL, true);138 for (offs = 0; offs < asize; offs += PAGE_SIZE) {139 page_mapping_insert(AS_KERNEL, vaddr + offs, paddr + offs,140 flags);141 }142 page_table_unlock(AS_KERNEL, true);143 144 return vaddr;145 }146 147 122 148 123 /** Unmap kernen non-identity page. … … 190 165 FRAME_HIGHMEM | FRAME_ATOMIC | flags); 191 166 if (frame) { 192 page = km_map(frame, PAGE_SIZE, 193 PAGE_READ | PAGE_WRITE | PAGE_CACHEABLE); 167 page = km_page_alloc(PAGE_SIZE, PAGE_SIZE); 194 168 ASSERT(page); // FIXME 169 page_table_lock(AS_KERNEL, true); 170 page_mapping_insert(AS_KERNEL, page, frame, 171 PAGE_CACHEABLE | PAGE_READ | PAGE_WRITE); 172 page_table_unlock(AS_KERNEL, true); 195 173 } else { 196 174 frame = (uintptr_t) frame_alloc_noreserve(ONE_FRAME,
Note:
See TracChangeset
for help on using the changeset viewer.