diff options
Diffstat (limited to 'arch/mips/mm/pgtable-64.c')
| -rw-r--r-- | arch/mips/mm/pgtable-64.c | 44 |
1 files changed, 27 insertions, 17 deletions
diff --git a/arch/mips/mm/pgtable-64.c b/arch/mips/mm/pgtable-64.c index 1121019fa45..78eaa4f0b0e 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: |