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big commit

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This commit is contained in:
Taku Shimosawa
2011-11-28 13:00:13 +09:00
parent ea0e1327c8
commit 480e1b12ef
21 changed files with 1866 additions and 89 deletions
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8
kernel/mem.c
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@@ -100,7 +100,10 @@ void *aal_mc_map_virtual(unsigned long phys, int npages,
enum aal_mc_pt_attribute attr)
{
void *p;
unsigned long i;
unsigned long i, offset;
offset = (phys & (PAGE_SIZE - 1));
phys = phys & PAGE_MASK;
p = (void *)aal_pagealloc_alloc(vmap_allocator, npages);
if (!p) {
@@ -110,13 +113,14 @@ void *aal_mc_map_virtual(unsigned long phys, int npages,
aal_mc_pt_set_page(NULL, (char *)p + (i << PAGE_SHIFT),
phys + (i << PAGE_SHIFT), attr);
}
return p;
return (char *)p + offset;
}
void aal_mc_unmap_virtual(void *va, int npages)
{
unsigned long i;
va = (void *)((unsigned long)va & PAGE_MASK);
for (i = 0; i < npages; i++) {
aal_mc_pt_clear_page(NULL, (char *)va + (i << PAGE_SHIFT));
}