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authorHans-Joachim Picht <hans@linux.vnet.ibm.com>2009-06-16 10:30:52 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2009-06-16 10:31:22 +0200
commit155af2f95f905c830688dd0ca7c7cac4107334fd (patch)
tree4304a39e713d1594903e838830c4029715cc7a2a /arch/s390/kernel/mem_detect.c
parentc369527f18f8560bd3580be2676cb55b54b02ee6 (diff)
downloadop-kernel-dev-155af2f95f905c830688dd0ca7c7cac4107334fd.zip
op-kernel-dev-155af2f95f905c830688dd0ca7c7cac4107334fd.tar.gz
[S390] s390: hibernation support for s390
This patch introduces the hibernation backend support to the s390 architecture. Now it is possible to suspend a mainframe Linux guest using the following command: echo disk > /sys/power/state Signed-off-by: Hans-Joachim Picht <hans@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/mem_detect.c')
-rw-r--r--arch/s390/kernel/mem_detect.c19
1 files changed, 3 insertions, 16 deletions
diff --git a/arch/s390/kernel/mem_detect.c b/arch/s390/kernel/mem_detect.c
index 9872999..559af0d 100644
--- a/arch/s390/kernel/mem_detect.c
+++ b/arch/s390/kernel/mem_detect.c
@@ -1,6 +1,7 @@
/*
- * Copyright IBM Corp. 2008
- * Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>
+ * Copyright IBM Corp. 2008, 2009
+ *
+ * Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>
*/
#include <linux/kernel.h>
@@ -9,20 +10,6 @@
#include <asm/sclp.h>
#include <asm/setup.h>
-static inline int tprot(unsigned long addr)
-{
- int rc = -EFAULT;
-
- asm volatile(
- " tprot 0(%1),0\n"
- "0: ipm %0\n"
- " srl %0,28\n"
- "1:\n"
- EX_TABLE(0b,1b)
- : "+d" (rc) : "a" (addr) : "cc");
- return rc;
-}
-
#define ADDR2G (1ULL << 31)
static void find_memory_chunks(struct mem_chunk chunk[])
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