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authorHeiko Carstens <heiko.carstens@de.ibm.com>2012-05-14 10:35:22 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2012-05-16 14:42:44 +0200
commitd652d59682c8891bdaecfccc72b0209cbe91d89f (patch)
treef04f1d0d174bab1b28496f3666d9d4dc597fcd36 /arch/s390
parent0544516956c0b949e3190f744df4b473f5ad4853 (diff)
downloadlinux-d652d59682c8891bdaecfccc72b0209cbe91d89f.tar.bz2
s390/time: simply Kconfig dependency
Use HAVE_MARCH_Z9_109_FEATURES to figure out if stckf is available at compile time. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390')
-rw-r--r--arch/s390/include/asm/timex.h2
-rw-r--r--arch/s390/kernel/entry64.S2
2 files changed, 2 insertions, 2 deletions
diff --git a/arch/s390/include/asm/timex.h b/arch/s390/include/asm/timex.h
index 72eaa8511a4f..239ece9e53c1 100644
--- a/arch/s390/include/asm/timex.h
+++ b/arch/s390/include/asm/timex.h
@@ -77,7 +77,7 @@ static inline unsigned long long get_clock(void)
{
unsigned long long clk;
-#if defined(CONFIG_64BIT) && !defined(CONFIG_MARCH_Z900) && !defined(CONFIG_MARCH_Z990)
+#ifdef CONFIG_HAVE_MARCH_Z9_109_FEATURES
asm volatile(".insn s,0xb27c0000,%0" : "=Q" (clk) : : "cc");
#else
asm volatile("stck %0" : "=Q" (clk) : : "cc");
diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S
index 02b660a7dcd4..02bf601d84bf 100644
--- a/arch/s390/kernel/entry64.S
+++ b/arch/s390/kernel/entry64.S
@@ -147,7 +147,7 @@ _TIF_EXIT_SIE = (_TIF_SIGPENDING | _TIF_NEED_RESCHED | _TIF_MCCK_PENDING)
.endm
.macro STCK savearea
-#if defined(CONFIG_64BIT) && !defined(CONFIG_MARCH_Z900) && !defined(CONFIG_MARCH_Z990)
+#ifdef CONFIG_HAVE_MARCH_Z9_109_FEATURES
.insn s,0xb27c0000,\savearea # store clock fast
#else
.insn s,0xb2050000,\savearea # store clock