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Diffstat (limited to 'arch/m68k/mm/kmap.c')
-rw-r--r--arch/m68k/mm/kmap.c39
1 files changed, 29 insertions, 10 deletions
diff --git a/arch/m68k/mm/kmap.c b/arch/m68k/mm/kmap.c
index 23f9466aabb5..120030ad8dc4 100644
--- a/arch/m68k/mm/kmap.c
+++ b/arch/m68k/mm/kmap.c
@@ -63,18 +63,23 @@ static void __free_io_area(void *addr, unsigned long size)
{
unsigned long virtaddr = (unsigned long)addr;
pgd_t *pgd_dir;
+ p4d_t *p4d_dir;
+ pud_t *pud_dir;
pmd_t *pmd_dir;
pte_t *pte_dir;
while ((long)size > 0) {
pgd_dir = pgd_offset_k(virtaddr);
- if (pgd_bad(*pgd_dir)) {
- printk("iounmap: bad pgd(%08lx)\n", pgd_val(*pgd_dir));
- pgd_clear(pgd_dir);
+ p4d_dir = p4d_offset(pgd_dir, virtaddr);
+ pud_dir = pud_offset(p4d_dir, virtaddr);
+ if (pud_bad(*pud_dir)) {
+ printk("iounmap: bad pud(%08lx)\n", pud_val(*pud_dir));
+ pud_clear(pud_dir);
return;
}
- pmd_dir = pmd_offset(pgd_dir, virtaddr);
+ pmd_dir = pmd_offset(pud_dir, virtaddr);
+#if CONFIG_PGTABLE_LEVELS == 3
if (CPU_IS_020_OR_030) {
int pmd_off = (virtaddr/PTRTREESIZE) & 15;
int pmd_type = pmd_dir->pmd[pmd_off] & _DESCTYPE_MASK;
@@ -87,6 +92,7 @@ static void __free_io_area(void *addr, unsigned long size)
} else if (pmd_type == 0)
continue;
}
+#endif
if (pmd_bad(*pmd_dir)) {
printk("iounmap: bad pmd (%08lx)\n", pmd_val(*pmd_dir));
@@ -159,6 +165,8 @@ void __iomem *__ioremap(unsigned long physaddr, unsigned long size, int cachefla
unsigned long virtaddr, retaddr;
long offset;
pgd_t *pgd_dir;
+ p4d_t *p4d_dir;
+ pud_t *pud_dir;
pmd_t *pmd_dir;
pte_t *pte_dir;
@@ -245,18 +253,23 @@ void __iomem *__ioremap(unsigned long physaddr, unsigned long size, int cachefla
printk ("\npa=%#lx va=%#lx ", physaddr, virtaddr);
#endif
pgd_dir = pgd_offset_k(virtaddr);
- pmd_dir = pmd_alloc(&init_mm, pgd_dir, virtaddr);
+ p4d_dir = p4d_offset(pgd_dir, virtaddr);
+ pud_dir = pud_offset(p4d_dir, virtaddr);
+ pmd_dir = pmd_alloc(&init_mm, pud_dir, virtaddr);
if (!pmd_dir) {
printk("ioremap: no mem for pmd_dir\n");
return NULL;
}
+#if CONFIG_PGTABLE_LEVELS == 3
if (CPU_IS_020_OR_030) {
pmd_dir->pmd[(virtaddr/PTRTREESIZE) & 15] = physaddr;
physaddr += PTRTREESIZE;
virtaddr += PTRTREESIZE;
size -= PTRTREESIZE;
- } else {
+ } else
+#endif
+ {
pte_dir = pte_alloc_kernel(pmd_dir, virtaddr);
if (!pte_dir) {
printk("ioremap: no mem for pte_dir\n");
@@ -307,6 +320,8 @@ void kernel_set_cachemode(void *addr, unsigned long size, int cmode)
{
unsigned long virtaddr = (unsigned long)addr;
pgd_t *pgd_dir;
+ p4d_t *p4d_dir;
+ pud_t *pud_dir;
pmd_t *pmd_dir;
pte_t *pte_dir;
@@ -341,13 +356,16 @@ void kernel_set_cachemode(void *addr, unsigned long size, int cmode)
while ((long)size > 0) {
pgd_dir = pgd_offset_k(virtaddr);
- if (pgd_bad(*pgd_dir)) {
- printk("iocachemode: bad pgd(%08lx)\n", pgd_val(*pgd_dir));
- pgd_clear(pgd_dir);
+ p4d_dir = p4d_offset(pgd_dir, virtaddr);
+ pud_dir = pud_offset(p4d_dir, virtaddr);
+ if (pud_bad(*pud_dir)) {
+ printk("iocachemode: bad pud(%08lx)\n", pud_val(*pud_dir));
+ pud_clear(pud_dir);
return;
}
- pmd_dir = pmd_offset(pgd_dir, virtaddr);
+ pmd_dir = pmd_offset(pud_dir, virtaddr);
+#if CONFIG_PGTABLE_LEVELS == 3
if (CPU_IS_020_OR_030) {
int pmd_off = (virtaddr/PTRTREESIZE) & 15;
@@ -359,6 +377,7 @@ void kernel_set_cachemode(void *addr, unsigned long size, int cmode)
continue;
}
}
+#endif
if (pmd_bad(*pmd_dir)) {
printk("iocachemode: bad pmd (%08lx)\n", pmd_val(*pmd_dir));