[kvm-unit-tests PATCH 7/8] lib: s390x: Control register constant cleanup

[Janosch Frank <frankja@linux.ibm.com>]

We had bits and masks defined and don't necessarily need both.

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
---
 lib/s390x/asm/arch_def.h | 29 +++++++++++++----------------
 lib/s390x/smp.c          |  2 +-
 s390x/skrf.c             |  2 +-
 3 files changed, 15 insertions(+), 18 deletions(-)

diff --git a/lib/s390x/asm/arch_def.h b/lib/s390x/asm/arch_def.h
index 245453c3..4574a166 100644
--- a/lib/s390x/asm/arch_def.h
+++ b/lib/s390x/asm/arch_def.h
@@ -54,10 +54,19 @@ struct psw {
 #define PSW_MASK_BA			0x0000000080000000UL
 #define PSW_MASK_64			PSW_MASK_BA | PSW_MASK_EA;
 
-#define CR0_EXTM_SCLP			0x0000000000000200UL
-#define CR0_EXTM_EXTC			0x0000000000002000UL
-#define CR0_EXTM_EMGC			0x0000000000004000UL
-#define CR0_EXTM_MASK			0x0000000000006200UL
+#define CTL0_LOW_ADDR_PROT		(63 - 35)
+#define CTL0_EDAT			(63 - 40)
+#define CTL0_IEP			(63 - 43)
+#define CTL0_AFP			(63 - 45)
+#define CTL0_VECTOR			(63 - 46)
+#define CTL0_EMERGENCY_SIGNAL		(63 - 49)
+#define CTL0_EXTERNAL_CALL		(63 - 50)
+#define CTL0_CLOCK_COMPARATOR		(63 - 52)
+#define CTL0_SERVICE_SIGNAL		(63 - 54)
+#define CR0_EXTM_MASK			0x0000000000006200UL /* Combined external masks */
+#define BIT_TO_MASK64(x)		1UL << x
+
+#define CTL2_GUARDED_STORAGE		(63 - 59)
 
 struct lowcore {
 	uint8_t		pad_0x0000[0x0080 - 0x0000];	/* 0x0000 */
@@ -239,18 +248,6 @@ static inline uint64_t stctg(int cr)
 	return value;
 }
 
-#define CTL0_LOW_ADDR_PROT	(63 - 35)
-#define CTL0_EDAT		(63 - 40)
-#define CTL0_IEP		(63 - 43)
-#define CTL0_AFP		(63 - 45)
-#define CTL0_VECTOR		(63 - 46)
-#define CTL0_EMERGENCY_SIGNAL	(63 - 49)
-#define CTL0_EXTERNAL_CALL	(63 - 50)
-#define CTL0_CLOCK_COMPARATOR	(63 - 52)
-#define CTL0_SERVICE_SIGNAL	(63 - 54)
-
-#define CTL2_GUARDED_STORAGE	(63 - 59)
-
 static inline void ctl_set_bit(int cr, unsigned int bit)
 {
         uint64_t reg;
diff --git a/lib/s390x/smp.c b/lib/s390x/smp.c
index 228fe667..c2c6ffec 100644
--- a/lib/s390x/smp.c
+++ b/lib/s390x/smp.c
@@ -204,7 +204,7 @@ int smp_cpu_setup(uint16_t addr, struct psw psw)
 	cpu->lowcore->sw_int_grs[15] = (uint64_t)cpu->stack + (PAGE_SIZE * 4);
 	lc->restart_new_psw.mask = PSW_MASK_64;
 	lc->restart_new_psw.addr = (uint64_t)smp_cpu_setup_state;
-	lc->sw_int_crs[0] = 0x0000000000040000UL;
+	lc->sw_int_crs[0] = BIT_TO_MASK64(CTL0_AFP);
 
 	/* Start processing */
 	smp_cpu_restart_nolock(addr, NULL);
diff --git a/s390x/skrf.c b/s390x/skrf.c
index 9488c32b..a350ada6 100644
--- a/s390x/skrf.c
+++ b/s390x/skrf.c
@@ -125,8 +125,8 @@ static void ecall_cleanup(void)
 {
 	struct lowcore *lc = (void *)0x0;
 
-	lc->sw_int_crs[0] = 0x0000000000040000;
 	lc->ext_new_psw.mask = PSW_MASK_64;
+	lc->sw_int_crs[0] = BIT_TO_MASK64(CTL0_AFP);
 
 	/*
 	 * PGM old contains the ext new PSW, we need to clean it up,
-- 
2.30.2