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-rw-r--r--arch/mips/mm/pgtable-64.c44
1 files changed, 27 insertions, 17 deletions
diff --git a/arch/mips/mm/pgtable-64.c b/arch/mips/mm/pgtable-64.c
index 1121019fa456..78eaa4f0b0ec 100644
--- a/arch/mips/mm/pgtable-64.c
+++ b/arch/mips/mm/pgtable-64.c
@@ -15,23 +15,31 @@
void pgd_init(unsigned long page)
{
unsigned long *p, *end;
+ unsigned long entry;
+
+#ifdef __PAGETABLE_PMD_FOLDED
+ entry = (unsigned long)invalid_pte_table;
+#else
+ entry = (unsigned long)invalid_pmd_table;
+#endif
p = (unsigned long *) page;
end = p + PTRS_PER_PGD;
while (p < end) {
- p[0] = (unsigned long) invalid_pmd_table;
- p[1] = (unsigned long) invalid_pmd_table;
- p[2] = (unsigned long) invalid_pmd_table;
- p[3] = (unsigned long) invalid_pmd_table;
- p[4] = (unsigned long) invalid_pmd_table;
- p[5] = (unsigned long) invalid_pmd_table;
- p[6] = (unsigned long) invalid_pmd_table;
- p[7] = (unsigned long) invalid_pmd_table;
+ p[0] = entry;
+ p[1] = entry;
+ p[2] = entry;
+ p[3] = entry;
+ p[4] = entry;
+ p[5] = entry;
+ p[6] = entry;
+ p[7] = entry;
p += 8;
}
}
+#ifndef __PAGETABLE_PMD_FOLDED
void pmd_init(unsigned long addr, unsigned long pagetable)
{
unsigned long *p, *end;
@@ -40,17 +48,18 @@ void pmd_init(unsigned long addr, unsigned long pagetable)
end = p + PTRS_PER_PMD;
while (p < end) {
- p[0] = (unsigned long)pagetable;
- p[1] = (unsigned long)pagetable;
- p[2] = (unsigned long)pagetable;
- p[3] = (unsigned long)pagetable;
- p[4] = (unsigned long)pagetable;
- p[5] = (unsigned long)pagetable;
- p[6] = (unsigned long)pagetable;
- p[7] = (unsigned long)pagetable;
+ p[0] = pagetable;
+ p[1] = pagetable;
+ p[2] = pagetable;
+ p[3] = pagetable;
+ p[4] = pagetable;
+ p[5] = pagetable;
+ p[6] = pagetable;
+ p[7] = pagetable;
p += 8;
}
}
+#endif
void __init pagetable_init(void)
{
@@ -59,8 +68,9 @@ void __init pagetable_init(void)
/* Initialize the entire pgd. */
pgd_init((unsigned long)swapper_pg_dir);
+#ifndef __PAGETABLE_PMD_FOLDED
pmd_init((unsigned long)invalid_pmd_table, (unsigned long)invalid_pte_table);
-
+#endif
pgd_base = swapper_pg_dir;
/*
* Fixed mappings: