From: Heiko Carstens <hca@linux.ibm.com>
Date: Mon, 11 Sep 2023 19:40:07 +0000 (+0200)
Subject: s390/early: use system_ctl_set_bit() instead of local_ctl_set_bit()
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=103dde702d698c2e17529550650407a386711cdf;p=linux.git

s390/early: use system_ctl_set_bit() instead of local_ctl_set_bit()

Use system_ctl_set_bit() instead of local_ctl_set_bit() to reflect
that the control register changes are supposed to be global. This
change is just for documentation purposes, since it still results only
in local control register contents being changed.

Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
---

diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index 1f359309cce6c..0beaa0ba58a86 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -216,7 +216,7 @@ static __init void detect_machine_facilities(void)
 {
 	if (test_facility(8)) {
 		S390_lowcore.machine_flags |= MACHINE_FLAG_EDAT1;
-		local_ctl_set_bit(0, 23);
+		system_ctl_set_bit(0, 23);
 	}
 	if (test_facility(78))
 		S390_lowcore.machine_flags |= MACHINE_FLAG_EDAT2;
@@ -224,13 +224,13 @@ static __init void detect_machine_facilities(void)
 		S390_lowcore.machine_flags |= MACHINE_FLAG_IDTE;
 	if (test_facility(50) && test_facility(73)) {
 		S390_lowcore.machine_flags |= MACHINE_FLAG_TE;
-		local_ctl_set_bit(0, 55);
+		system_ctl_set_bit(0, 55);
 	}
 	if (test_facility(51))
 		S390_lowcore.machine_flags |= MACHINE_FLAG_TLB_LC;
 	if (test_facility(129)) {
 		S390_lowcore.machine_flags |= MACHINE_FLAG_VX;
-		local_ctl_set_bit(0, 17);
+		system_ctl_set_bit(0, 17);
 	}
 	if (test_facility(130))
 		S390_lowcore.machine_flags |= MACHINE_FLAG_NX;
@@ -240,7 +240,7 @@ static __init void detect_machine_facilities(void)
 		/* Enabled signed clock comparator comparisons */
 		S390_lowcore.machine_flags |= MACHINE_FLAG_SCC;
 		clock_comparator_max = -1ULL >> 1;
-		local_ctl_set_bit(0, 53);
+		system_ctl_set_bit(0, 53);
 	}
 	if (IS_ENABLED(CONFIG_PCI) && test_facility(153)) {
 		S390_lowcore.machine_flags |= MACHINE_FLAG_PCI_MIO;
@@ -260,7 +260,7 @@ static inline void save_vector_registers(void)
 
 static inline void setup_low_address_protection(void)
 {
-	local_ctl_set_bit(0, 28);
+	system_ctl_set_bit(0, 28);
 }
 
 static inline void setup_access_registers(void)
@@ -273,7 +273,7 @@ static inline void setup_access_registers(void)
 static int __init disable_vector_extension(char *str)
 {
 	S390_lowcore.machine_flags &= ~MACHINE_FLAG_VX;
-	local_ctl_clear_bit(0, 17);
+	system_ctl_clear_bit(0, 17);
 	return 0;
 }
 early_param("novx", disable_vector_extension);