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Diffstat (limited to 'arch/s390/include/asm/ctl_reg.h')
-rw-r--r--arch/s390/include/asm/ctl_reg.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/s390/include/asm/ctl_reg.h b/arch/s390/include/asm/ctl_reg.h
index 4e63f1a13600..31ab9f346d7e 100644
--- a/arch/s390/include/asm/ctl_reg.h
+++ b/arch/s390/include/asm/ctl_reg.h
@@ -57,6 +57,20 @@ static inline void __ctl_clear_bit(unsigned int cr, unsigned int bit)
void smp_ctl_set_bit(int cr, int bit);
void smp_ctl_clear_bit(int cr, int bit);
+union ctlreg0 {
+ unsigned long val;
+ struct {
+#ifdef CONFIG_64BIT
+ unsigned long : 32;
+#endif
+ unsigned long : 3;
+ unsigned long lap : 1; /* Low-address-protection control */
+ unsigned long : 4;
+ unsigned long edat : 1; /* Enhanced-DAT-enablement control */
+ unsigned long : 23;
+ };
+};
+
#ifdef CONFIG_SMP
# define ctl_set_bit(cr, bit) smp_ctl_set_bit(cr, bit)
# define ctl_clear_bit(cr, bit) smp_ctl_clear_bit(cr, bit)