[PATCH v4 03/23] s390: Move sske_frame() to a header

Claudio Imbrenda posted 23 patches 1 week, 4 days ago
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[PATCH v4 03/23] s390: Move sske_frame() to a header
Posted by Claudio Imbrenda 1 week, 4 days ago
Move the sske_frame() function to asm/pgtable.h, so it can be used in
other modules too.

Opportunistically convert the .insn opcode specification to the
appropriate mnemonic.

Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Reviewed-by: Steffen Eiden <seiden@linux.ibm.com>
Reviewed-by: Christoph Schlameuss <schlameuss@linux.ibm.com>
Reviewed-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com>
---
 arch/s390/include/asm/pgtable.h | 7 +++++++
 arch/s390/mm/pageattr.c         | 7 -------
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index 528ce3611e53..3ddc62fcf6dd 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -1148,6 +1148,13 @@ static inline pte_t pte_mkhuge(pte_t pte)
 }
 #endif
 
+static inline unsigned long sske_frame(unsigned long addr, unsigned char skey)
+{
+	asm volatile("sske %[skey],%[addr],1"
+		     : [addr] "+a" (addr) : [skey] "d" (skey));
+	return addr;
+}
+
 #define IPTE_GLOBAL	0
 #define	IPTE_LOCAL	1
 
diff --git a/arch/s390/mm/pageattr.c b/arch/s390/mm/pageattr.c
index 348e759840e7..ceeb04136cec 100644
--- a/arch/s390/mm/pageattr.c
+++ b/arch/s390/mm/pageattr.c
@@ -16,13 +16,6 @@
 #include <asm/asm.h>
 #include <asm/set_memory.h>
 
-static inline unsigned long sske_frame(unsigned long addr, unsigned char skey)
-{
-	asm volatile(".insn rrf,0xb22b0000,%[skey],%[addr],1,0"
-		     : [addr] "+a" (addr) : [skey] "d" (skey));
-	return addr;
-}
-
 void __storage_key_init_range(unsigned long start, unsigned long end)
 {
 	unsigned long boundary, size;
-- 
2.51.1