diff options
| -rw-r--r-- | arch/sh/mm/pg-mmu.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/sh/mm/pg-mmu.c b/arch/sh/mm/pg-mmu.c index 027c4d83fb8..7a6ef34bd49 100644 --- a/arch/sh/mm/pg-mmu.c +++ b/arch/sh/mm/pg-mmu.c @@ -22,13 +22,14 @@ static pte_t *kmap_coherent_pte; void __init kmap_coherent_init(void) { -#if defined(CONFIG_CPU_SH4) || defined(CONFIG_SH7705_CACHE_32KB) unsigned long vaddr; + if (!boot_cpu_data.dcache.n_aliases) + return; + /* cache the first coherent kmap pte */ vaddr = __fix_to_virt(FIX_CMAP_BEGIN); kmap_coherent_pte = kmap_get_fixmap_pte(vaddr); -#endif } static void *kmap_coherent(struct page *page, unsigned long addr) |