static inline int
remap_area_pmd(pmd_t *pmd, unsigned long address, unsigned long size,
unsigned long phys_addr, unsigned long flags)
{
unsigned long end;
address &= ~PGDIR_MASK;
end = address + size;
if (end > PGDIR_SIZE)
end = PGDIR_SIZE;
BUG_ON(address >= end);
phys_addr -= address;
do {
pte_t *pte = pte_alloc_kernel(pmd, address);
if (!pte)
return -ENOMEM;
remap_area_pte(pte, address, end - address,
address + phys_addr, flags);
address = (address + PMD_SIZE) & PMD_MASK;
pmd++;
} while (address && (address < end));
return 0;
}
static inline int
remap_area_pmd(pmd_t * pmd, unsigned long address, unsigned long size,
unsigned long phys_addr, unsigned long flags)
{
unsigned long end;
pgprot_t pgprot;
address &= ~PGDIR_MASK;
end = address + size;
if (end > PGDIR_SIZE)
end = PGDIR_SIZE;
phys_addr -= address;
BUG_ON(address >= end);
pgprot = __pgprot(L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY | L_PTE_WRITE | flags);
do {
pte_t * pte = pte_alloc_kernel(&init_mm, pmd, address);
if (!pte)
return -ENOMEM;
remap_area_pte(pte, address, end - address, address + phys_addr, pgprot);
address = (address + PMD_SIZE) & PMD_MASK;
pmd++;
} while (address && (address < end));
return 0;
}
static inline int remap_area_pmd(pmd_t * pmd, unsigned long address, unsigned long size,
unsigned long phys_addr, unsigned long flags)
{
unsigned long end;
address &= ~PGDIR_MASK;
end = address + size;
if (end > PGDIR_SIZE)
end = PGDIR_SIZE;
DEBUG_IOREMAP(("%s: pmd 0x%08x, addr. 0x%08x, phys. 0x%08x, end 0x%08x pmd 0x%08x\n", \
pmd, address, phys_addr, end));
phys_addr -= address;
do {
DEBUG_IOREMAP(("%s: pmd 0x%08x, addr. 0x%08x, phys. 0x%08x, end 0x%08x pmd 0x%08x\n", \
__FUNCTION__, pmd, address, phys_addr, end));
pte_t * pte = pte_alloc(&init_mm, pmd, address);
if (!pte) {
return -ENOMEM;
}
remap_area_pte(pte, address, end - address, address + phys_addr, flags);
address = (address + PMD_SIZE) & PMD_MASK;
pmd++;
DEBUG_IOREMAP(("remap_area_pmd address is 0x%08x phys_addr is 0x%08x end 0x%08x\n", address,phys_addr,end));
} while (address && (address < end));
return 0;
}
static inline int remap_area_pmd(pgd_t *pgd, unsigned long addr,
unsigned long end, unsigned long phys_addr,
const struct mem_type *type)
{
unsigned long next;
pmd_t *pmd;
int ret = 0;
pmd = pmd_alloc(&init_mm, pgd, addr);
if (!pmd)
return -ENOMEM;
do {
next = pmd_addr_end(addr, end);
ret = remap_area_pte(pmd, addr, next, phys_addr, type);
if (ret)
return ret;
phys_addr += next - addr;
} while (pmd++, addr = next, addr != end);
return ret;
}
