s390/spinlock: add compare-and-delay to lock wait loops

[firefly-linux-kernel-4.4.55.git] / arch / s390 / include / asm / setup.h

diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h
index 7736fdd725953c862f3df931723ed355d8b23f8b..b8d1e54b473308738167c1246b72734c5e0d71cc 100644 (file)
--- a/arch/s390/include/asm/setup.h
+++ b/arch/s390/include/asm/setup.h
@@ -57,6 +57,7 @@ extern void detect_memory_memblock(void);
 #define MACHINE_FLAG_TE                (1UL << 15)
 #define MACHINE_FLAG_TLB_LC    (1UL << 17)
 #define MACHINE_FLAG_VX                (1UL << 18)
+#define MACHINE_FLAG_CAD       (1UL << 19)
 
 #define MACHINE_IS_VM          (S390_lowcore.machine_flags & MACHINE_FLAG_VM)
 #define MACHINE_IS_KVM         (S390_lowcore.machine_flags & MACHINE_FLAG_KVM)
@@ -80,6 +81,7 @@ extern void detect_memory_memblock(void);
 #define MACHINE_HAS_TE         (0)
 #define MACHINE_HAS_TLB_LC     (0)
 #define MACHINE_HAS_VX         (0)
+#define MACHINE_HAS_CAD                (0)
 #else /* CONFIG_64BIT */
 #define MACHINE_HAS_IEEE       (1)
 #define MACHINE_HAS_CSP                (1)
@@ -93,6 +95,7 @@ extern void detect_memory_memblock(void);
 #define MACHINE_HAS_TE         (S390_lowcore.machine_flags & MACHINE_FLAG_TE)
 #define MACHINE_HAS_TLB_LC     (S390_lowcore.machine_flags & MACHINE_FLAG_TLB_LC)
 #define MACHINE_HAS_VX         (S390_lowcore.machine_flags & MACHINE_FLAG_VX)
+#define MACHINE_HAS_CAD                (S390_lowcore.machine_flags & MACHINE_FLAG_CAD)
 #endif /* CONFIG_64BIT */
 
 /*