diff options
Diffstat (limited to 'include/asm-ppc/pgtable.h')
| -rw-r--r-- | include/asm-ppc/pgtable.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/include/asm-ppc/pgtable.h b/include/asm-ppc/pgtable.h index 2ba37d3ccfbf70..6cfc5fc57138be 100644 --- a/include/asm-ppc/pgtable.h +++ b/include/asm-ppc/pgtable.h @@ -298,12 +298,13 @@ extern unsigned long vmalloc_start; #define _PAGE_NO_CACHE 0x0002 /* I: cache inhibit */ #define _PAGE_SHARED 0x0004 /* No ASID (context) compare */ -/* These three software bits must be masked out when the entry is loaded - * into the TLB, 2 SW bits free. +/* These four software bits must be masked out when the entry is loaded + * into the TLB, 1 SW bits left(0x0080). */ #define _PAGE_EXEC 0x0008 /* software: i-cache coherency required */ #define _PAGE_GUARDED 0x0010 /* software: guarded access */ #define _PAGE_ACCESSED 0x0020 /* software: page referenced */ +#define _PAGE_WRITETHRU 0x0040 /* software: caching is write through */ /* Setting any bits in the nibble with the follow two controls will * require a TLB exception handler change. It is assumed unused bits |