summaryrefslogtreecommitdiffstats
path: root/arch/s390/include/asm/pgtable.h
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2009-12-09 19:01:47 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-09 19:01:47 -0800
commit67dd2f5a669f48e48ea1013fb80522adca8287f4 (patch)
treeeee4e7f15df90f899211cde0a669d661085de05d /arch/s390/include/asm/pgtable.h
parent5327b9b83a9c45a3fcbcda224a2b02d9eea9f6bb (diff)
parent42d61b9b415686d81eaa022b846737548876e51d (diff)
Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: (72 commits) [S390] 3215/3270 console: remove wrong comment [S390] dasd: remove BKL from extended error reporting code [S390] vmlogrdr: remove BKL [S390] vmur: remove BKL [S390] zcrypt: remove BKL [S390] 3270: remove BKL [S390] vmwatchdog: remove lock_kernel() from open() function [S390] monwriter: remove lock_kernel() from open() function [S390] monreader: remove lock_kernel() from open() function [S390] s390: remove unused nfsd #includes [S390] ftrace: build ftrace.o when CONFIG_FTRACE_SYSCALLS is set for s390 [S390] etr/stp: put correct per cpu variable [S390] tty3270: move keyboard compat ioctls [S390] sclp: improve servicability setting [S390] s390: use change recording override for kernel mapping [S390] MAINTAINERS: Add s390 drivers block [S390] use generic sockios.h header file [S390] use generic termbits.h header file [S390] smp: remove unused typedef and defines [S390] cmm: free pages on hibernate. ...
Diffstat (limited to 'arch/s390/include/asm/pgtable.h')
-rw-r--r--arch/s390/include/asm/pgtable.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index 60a7b1a1702..e2fa79cf061 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -169,12 +169,13 @@ extern unsigned long VMALLOC_START;
* STL Segment-Table-Length: Segment-table length (STL+1*16 entries -> up to 2048)
*
* A 64 bit pagetable entry of S390 has following format:
- * | PFRA |0IP0| OS |
+ * | PFRA |0IPC| OS |
* 0000000000111111111122222222223333333333444444444455555555556666
* 0123456789012345678901234567890123456789012345678901234567890123
*
* I Page-Invalid Bit: Page is not available for address-translation
* P Page-Protection Bit: Store access not possible for page
+ * C Change-bit override: HW is not required to set change bit
*
* A 64 bit segmenttable entry of S390 has following format:
* | P-table origin | TT
@@ -218,6 +219,7 @@ extern unsigned long VMALLOC_START;
*/
/* Hardware bits in the page table entry */
+#define _PAGE_CO 0x100 /* HW Change-bit override */
#define _PAGE_RO 0x200 /* HW read-only bit */
#define _PAGE_INVALID 0x400 /* HW invalid bit */