struct pmap *pmap_alloc(void)
{
l1e_t *l1s;
struct pmap *pmap;
l1s = (l1e_t *) alloc12k();
if (l1s == NULL)
return NULL;
memset(l1s, 0, 12 * 1024);
pmap = structs_alloc(&pmap_cache);
if (pmap == NULL) {
free12k(l1s);
return NULL;
}
l1s[NPTES * 2 + LINOFF + 0] = mklinl1e(DEUKERNBASE(l1s),
PG_A | PG_D | PG_W | PG_P);
l1s[NPTES * 2 + LINOFF + 1] = mklinl1e(DEUKERNBASE(l1s + NPTES),
PG_A | PG_D | PG_W | PG_P);
l1s[NPTES * 2 + LINOFF + 2] =
mklinl1e(DEUKERNBASE(l1s + NPTES * 2),
PG_A | PG_D | PG_W | PG_P);
l1s[NPTES * 2 + LINOFF + 3] =
mklinl1e(DEUKERNBASE(pmap_kernel_l1),
PG_A | PG_D | PG_W | PG_P);
pmap->pdptr[0] = mkl2e(DEUKERNBASE(l1s), PG_P);
pmap->pdptr[1] = mkl2e(DEUKERNBASE(l1s + 512), PG_P);
pmap->pdptr[2] = mkl2e(DEUKERNBASE(l1s + 1024), PG_P);
pmap->pdptr[3] = mkl2e(DEUKERNBASE(pmap_kernel_l1), PG_P);
pmap->l1s = l1s;
pmap->lock = 0;
pmap->refcnt = 0;
return pmap;
}
void *AcpiOsAcquireObject(ACPI_CACHE_T * Cache)
{
return structs_alloc((struct slab *) Cache);
}
