diff options
Diffstat (limited to 'arch/x86/mm/pageattr.c')
| -rw-r--r-- | arch/x86/mm/pageattr.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c index bd5e05c654d..60bcb5b6a37 100644 --- a/arch/x86/mm/pageattr.c +++ b/arch/x86/mm/pageattr.c @@ -777,14 +777,20 @@ static inline int change_page_attr_clear(unsigned long addr, int numpages, int _set_memory_uc(unsigned long addr, int numpages) { + /* + * for now UC MINUS. see comments in ioremap_nocache() + */ return change_page_attr_set(addr, numpages, - __pgprot(_PAGE_CACHE_UC)); + __pgprot(_PAGE_CACHE_UC_MINUS)); } int set_memory_uc(unsigned long addr, int numpages) { + /* + * for now UC MINUS. see comments in ioremap_nocache() + */ if (reserve_memtype(addr, addr + numpages * PAGE_SIZE, - _PAGE_CACHE_UC, NULL)) + _PAGE_CACHE_UC_MINUS, NULL)) return -EINVAL; return _set_memory_uc(addr, numpages); |