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-rw-r--r--arch/s390/include/asm/setup.h3
-rw-r--r--arch/s390/include/asm/timex.h2
2 files changed, 4 insertions, 1 deletions
diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h
index 5a099714df0..097183c7040 100644
--- a/arch/s390/include/asm/setup.h
+++ b/arch/s390/include/asm/setup.h
@@ -82,6 +82,7 @@ extern unsigned int user_mode;
#define MACHINE_FLAG_LPAR (1UL << 12)
#define MACHINE_FLAG_SPP (1UL << 13)
#define MACHINE_FLAG_TOPOLOGY (1UL << 14)
+#define MACHINE_FLAG_STCKF (1UL << 15)
#define MACHINE_IS_VM (S390_lowcore.machine_flags & MACHINE_FLAG_VM)
#define MACHINE_IS_KVM (S390_lowcore.machine_flags & MACHINE_FLAG_KVM)
@@ -100,6 +101,7 @@ extern unsigned int user_mode;
#define MACHINE_HAS_PFMF (0)
#define MACHINE_HAS_SPP (0)
#define MACHINE_HAS_TOPOLOGY (0)
+#define MACHINE_HAS_STCKF (0)
#else /* __s390x__ */
#define MACHINE_HAS_IEEE (1)
#define MACHINE_HAS_CSP (1)
@@ -111,6 +113,7 @@ extern unsigned int user_mode;
#define MACHINE_HAS_PFMF (S390_lowcore.machine_flags & MACHINE_FLAG_PFMF)
#define MACHINE_HAS_SPP (S390_lowcore.machine_flags & MACHINE_FLAG_SPP)
#define MACHINE_HAS_TOPOLOGY (S390_lowcore.machine_flags & MACHINE_FLAG_TOPOLOGY)
+#define MACHINE_HAS_STCKF (S390_lowcore.machine_flags & MACHINE_FLAG_STCKF)
#endif /* __s390x__ */
#define ZFCPDUMP_HSA_SIZE (32UL<<20)
diff --git a/arch/s390/include/asm/timex.h b/arch/s390/include/asm/timex.h
index d610bef9c5e..c447a27a7fd 100644
--- a/arch/s390/include/asm/timex.h
+++ b/arch/s390/include/asm/timex.h
@@ -90,7 +90,7 @@ static inline unsigned long long get_clock_fast(void)
{
unsigned long long clk;
- if (test_facility(25))
+ if (MACHINE_HAS_STCKF)
asm volatile(".insn s,0xb27c0000,%0" : "=Q" (clk) : : "cc");
else
clk = get_clock();