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authorHeiko Carstens <hca@linux.ibm.com>2024-07-16 13:50:50 +0200
committerVasily Gorbik <gor@linux.ibm.com>2024-07-23 16:02:31 +0200
commitc77f7354c4478bf4560b546913e097b3d4ab50c1 (patch)
treea8a4384b04de8c63600f5be17465f4c59f6cbaeb
parent9be999a61232fd6748ebe8654c71bcde1a0fbed3 (diff)
s390/alternatives: Merge both alternative header files
The two alternative header files must stay in sync. This is easier to achieve within one header file. Therefore merge both of them and have only one file, like most other architectures. Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com> Tested-by: Sven Schnelle <svens@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
-rw-r--r--arch/s390/include/asm/alternative-asm.h57
-rw-r--r--arch/s390/include/asm/alternative.h50
-rw-r--r--arch/s390/kernel/entry.S2
3 files changed, 51 insertions, 58 deletions
diff --git a/arch/s390/include/asm/alternative-asm.h b/arch/s390/include/asm/alternative-asm.h
deleted file mode 100644
index 608f6287ca9c..000000000000
--- a/arch/s390/include/asm/alternative-asm.h
+++ /dev/null
@@ -1,57 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ASM_S390_ALTERNATIVE_ASM_H
-#define _ASM_S390_ALTERNATIVE_ASM_H
-
-#ifdef __ASSEMBLY__
-
-/*
- * Issue one struct alt_instr descriptor entry (need to put it into
- * the section .altinstructions, see below). This entry contains
- * enough information for the alternatives patching code to patch an
- * instruction. See apply_alternatives().
- */
-.macro alt_entry orig_start, orig_end, alt_start, alt_end, feature
- .long \orig_start - .
- .long \alt_start - .
- .word \feature
- .byte \orig_end - \orig_start
- .org . - ( \orig_end - \orig_start ) & 1
- .org . - ( \orig_end - \orig_start ) + ( \alt_end - \alt_start )
- .org . - ( \alt_end - \alt_start ) + ( \orig_end - \orig_start )
-.endm
-
-/*
- * Define an alternative between two instructions. If @feature is
- * present, early code in apply_alternatives() replaces @oldinstr with
- * @newinstr.
- */
-.macro ALTERNATIVE oldinstr, newinstr, feature
- .pushsection .altinstr_replacement,"ax"
-770: \newinstr
-771: .popsection
-772: \oldinstr
-773: .pushsection .altinstructions,"a"
- alt_entry 772b, 773b, 770b, 771b, \feature
- .popsection
-.endm
-
-/*
- * Define an alternative between two instructions. If @feature is
- * present, early code in apply_alternatives() replaces @oldinstr with
- * @newinstr.
- */
-.macro ALTERNATIVE_2 oldinstr, newinstr1, feature1, newinstr2, feature2
- .pushsection .altinstr_replacement,"ax"
-770: \newinstr1
-771: \newinstr2
-772: .popsection
-773: \oldinstr
-774: .pushsection .altinstructions,"a"
- alt_entry 773b, 774b, 770b, 771b,\feature1
- alt_entry 773b, 774b, 771b, 772b,\feature2
- .popsection
-.endm
-
-#endif /* __ASSEMBLY__ */
-
-#endif /* _ASM_S390_ALTERNATIVE_ASM_H */
diff --git a/arch/s390/include/asm/alternative.h b/arch/s390/include/asm/alternative.h
index 07459553d64f..16de33750d6c 100644
--- a/arch/s390/include/asm/alternative.h
+++ b/arch/s390/include/asm/alternative.h
@@ -116,6 +116,56 @@ void apply_alternatives(struct alt_instr *start, struct alt_instr *end);
/* Use this macro if clobbers are needed without inputs. */
#define ASM_NO_INPUT_CLOBBER(clobber...) : clobber
+#else /* __ASSEMBLY__ */
+
+/*
+ * Issue one struct alt_instr descriptor entry (need to put it into
+ * the section .altinstructions, see below). This entry contains
+ * enough information for the alternatives patching code to patch an
+ * instruction. See apply_alternatives().
+ */
+.macro alt_entry orig_start, orig_end, alt_start, alt_end, feature
+ .long \orig_start - .
+ .long \alt_start - .
+ .word \feature
+ .byte \orig_end - \orig_start
+ .org . - ( \orig_end - \orig_start ) & 1
+ .org . - ( \orig_end - \orig_start ) + ( \alt_end - \alt_start )
+ .org . - ( \alt_end - \alt_start ) + ( \orig_end - \orig_start )
+.endm
+
+/*
+ * Define an alternative between two instructions. If @feature is
+ * present, early code in apply_alternatives() replaces @oldinstr with
+ * @newinstr.
+ */
+.macro ALTERNATIVE oldinstr, newinstr, feature
+ .pushsection .altinstr_replacement,"ax"
+770: \newinstr
+771: .popsection
+772: \oldinstr
+773: .pushsection .altinstructions,"a"
+ alt_entry 772b, 773b, 770b, 771b, \feature
+ .popsection
+.endm
+
+/*
+ * Define an alternative between two instructions. If @feature is
+ * present, early code in apply_alternatives() replaces @oldinstr with
+ * @newinstr.
+ */
+.macro ALTERNATIVE_2 oldinstr, newinstr1, feature1, newinstr2, feature2
+ .pushsection .altinstr_replacement,"ax"
+770: \newinstr1
+771: \newinstr2
+772: .popsection
+773: \oldinstr
+774: .pushsection .altinstructions,"a"
+ alt_entry 773b, 774b, 770b, 771b,\feature1
+ alt_entry 773b, 774b, 771b, 772b,\feature2
+ .popsection
+.endm
+
#endif /* __ASSEMBLY__ */
#endif /* _ASM_S390_ALTERNATIVE_H */
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index fa58bd2c48c9..866917ff013f 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -12,7 +12,7 @@
#include <linux/init.h>
#include <linux/linkage.h>
#include <asm/asm-extable.h>
-#include <asm/alternative-asm.h>
+#include <asm/alternative.h>
#include <asm/processor.h>
#include <asm/cache.h>
#include <asm/dwarf.h>