diff mbox series

[kvm-unit-tests,GIT,PULL,05/11] s390x: lib: Introduce HPAGE_* constants

Message ID 20210816132054.60078-6-frankja@linux.ibm.com (mailing list archive)
State New, archived
Headers show
Series [kvm-unit-tests,GIT,PULL,01/11] s390x: Add SPDX and header comments for s390x/* and lib/s390x/* | expand

Commit Message

Janosch Frank Aug. 16, 2021, 1:20 p.m. UTC 
They come in handy when working with 1MB blocks/addresses.

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
---
 lib/s390x/asm/page.h | 4 ++++
 1 file changed, 4 insertions(+)
diff mbox series

Patch

diff --git a/lib/s390x/asm/page.h b/lib/s390x/asm/page.h
index f130f936..2f4afd06 100644
--- a/lib/s390x/asm/page.h
+++ b/lib/s390x/asm/page.h
@@ -35,4 +35,8 @@  typedef struct { pteval_t pte; } pte_t;
 #define __pmd(x)	((pmd_t) { (x) } )
 #define __pte(x)	((pte_t) { (x) } )
 
+#define HPAGE_SHIFT		20
+#define HPAGE_SIZE		(_AC(1,UL) << HPAGE_SHIFT)
+#define HPAGE_MASK		(~(HPAGE_SIZE-1))
+
 #endif