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authorMarcelo Tosatti <mtosatti@redhat.com>2012-10-30 01:15:32 +0400
committerMarcelo Tosatti <mtosatti@redhat.com>2012-10-30 01:15:32 +0400
commit19bf7f8ac3f8131100027281c495dbbe00cd5ae0 (patch)
tree270b97e3ca47c0f62a1babca2ae37f79a76a309c /arch/s390/include/asm/page.h
parent787c57c0fb393fe8a3974d300ddcfe30373386fe (diff)
parent35fd3dc58da675d659513384221349ef90749a01 (diff)
downloadlinux-19bf7f8ac3f8131100027281c495dbbe00cd5ae0.tar.xz
Merge remote-tracking branch 'master' into queue
Merge reason: development work has dependency on kvm patches merged upstream. Conflicts: arch/powerpc/include/asm/Kbuild arch/powerpc/include/asm/kvm_para.h Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'arch/s390/include/asm/page.h')
-rw-r--r--arch/s390/include/asm/page.h14
1 files changed, 11 insertions, 3 deletions
diff --git a/arch/s390/include/asm/page.h b/arch/s390/include/asm/page.h
index 27ab3c7c1e8b..6d5367060a56 100644
--- a/arch/s390/include/asm/page.h
+++ b/arch/s390/include/asm/page.h
@@ -30,12 +30,20 @@
#include <asm/setup.h>
#ifndef __ASSEMBLY__
+static unsigned long pfmf(unsigned long function, unsigned long address)
+{
+ asm volatile(
+ " .insn rre,0xb9af0000,%[function],%[address]"
+ : [address] "+a" (address)
+ : [function] "d" (function)
+ : "memory");
+ return address;
+}
+
static inline void clear_page(void *page)
{
if (MACHINE_HAS_PFMF) {
- asm volatile(
- " .insn rre,0xb9af0000,%0,%1"
- : : "d" (0x10000), "a" (page) : "memory", "cc");
+ pfmf(0x10000, (unsigned long)page);
} else {
register unsigned long reg1 asm ("1") = 0;
register void *reg2 asm ("2") = page;