[PATCHv5 03/12] arm64: uaccess: move uao_* alternatives to asm-uaccess.h

[Mark Rutland]

The uao_* alternative asm macros are only used by the uaccess assembly
routines in arch/arm64/lib/, where they are included indirectly via
asm-uaccess.h. Since they're specific to the uaccess assembly (and will
lose the alternatives in subsequent patches), let's move them into
asm-uaccess.h.

There should be no functional change as a result of this patch.

Signed-off-by: Mark Rutland <mark.rutland at arm.com>
Cc: Catalin Marinas <catalin.marinas at arm.com>
Cc: Christoph Hellwig <hch at lst.de>
Cc: James Morse <james.morse at arm.com>
Cc: Will Deacon <will at kernel.org>
---
 arch/arm64/include/asm/alternative.h | 59 ------------------------------------
 arch/arm64/include/asm/asm-uaccess.h | 59 ++++++++++++++++++++++++++++++++++++
 arch/arm64/lib/mte.S                 |  2 +-
 3 files changed, 60 insertions(+), 60 deletions(-)

diff --git a/arch/arm64/include/asm/alternative.h b/arch/arm64/include/asm/alternative.h
index 619db9b4c9d5..5d6b89d26de4 100644
--- a/arch/arm64/include/asm/alternative.h
+++ b/arch/arm64/include/asm/alternative.h
@@ -224,65 +224,6 @@ alternative_endif
 	_asm_extable 9999b, \label
 .endm
 
-/*
- * Generate the assembly for UAO alternatives with exception table entries.
- * This is complicated as there is no post-increment or pair versions of the
- * unprivileged instructions, and USER() only works for single instructions.
- */
-#ifdef CONFIG_ARM64_UAO
-	.macro uao_ldp l, reg1, reg2, addr, post_inc
-		alternative_if_not ARM64_HAS_UAO
-8888:			ldp	\reg1, \reg2, [\addr], \post_inc;
-8889:			nop;
-			nop;
-		alternative_else
-			ldtr	\reg1, [\addr];
-			ldtr	\reg2, [\addr, #8];
-			add	\addr, \addr, \post_inc;
-		alternative_endif
-
-		_asm_extable	8888b,\l;
-		_asm_extable	8889b,\l;
-	.endm
-
-	.macro uao_stp l, reg1, reg2, addr, post_inc
-		alternative_if_not ARM64_HAS_UAO
-8888:			stp	\reg1, \reg2, [\addr], \post_inc;
-8889:			nop;
-			nop;
-		alternative_else
-			sttr	\reg1, [\addr];
-			sttr	\reg2, [\addr, #8];
-			add	\addr, \addr, \post_inc;
-		alternative_endif
-
-		_asm_extable	8888b,\l;
-		_asm_extable	8889b,\l;
-	.endm
-
-	.macro uao_user_alternative l, inst, alt_inst, reg, addr, post_inc
-		alternative_if_not ARM64_HAS_UAO
-8888:			\inst	\reg, [\addr], \post_inc;
-			nop;
-		alternative_else
-			\alt_inst	\reg, [\addr];
-			add		\addr, \addr, \post_inc;
-		alternative_endif
-
-		_asm_extable	8888b,\l;
-	.endm
-#else
-	.macro uao_ldp l, reg1, reg2, addr, post_inc
-		USER(\l, ldp \reg1, \reg2, [\addr], \post_inc)
-	.endm
-	.macro uao_stp l, reg1, reg2, addr, post_inc
-		USER(\l, stp \reg1, \reg2, [\addr], \post_inc)
-	.endm
-	.macro uao_user_alternative l, inst, alt_inst, reg, addr, post_inc
-		USER(\l, \inst \reg, [\addr], \post_inc)
-	.endm
-#endif
-
 #endif  /*  __ASSEMBLY__  */
 
 /*
diff --git a/arch/arm64/include/asm/asm-uaccess.h b/arch/arm64/include/asm/asm-uaccess.h
index f68a0e64482a..479222ab82d4 100644
--- a/arch/arm64/include/asm/asm-uaccess.h
+++ b/arch/arm64/include/asm/asm-uaccess.h
@@ -58,4 +58,63 @@ alternative_else_nop_endif
 	.endm
 #endif
 
+/*
+ * Generate the assembly for UAO alternatives with exception table entries.
+ * This is complicated as there is no post-increment or pair versions of the
+ * unprivileged instructions, and USER() only works for single instructions.
+ */
+#ifdef CONFIG_ARM64_UAO
+	.macro uao_ldp l, reg1, reg2, addr, post_inc
+		alternative_if_not ARM64_HAS_UAO
+8888:			ldp	\reg1, \reg2, [\addr], \post_inc;
+8889:			nop;
+			nop;
+		alternative_else
+			ldtr	\reg1, [\addr];
+			ldtr	\reg2, [\addr, #8];
+			add	\addr, \addr, \post_inc;
+		alternative_endif
+
+		_asm_extable	8888b,\l;
+		_asm_extable	8889b,\l;
+	.endm
+
+	.macro uao_stp l, reg1, reg2, addr, post_inc
+		alternative_if_not ARM64_HAS_UAO
+8888:			stp	\reg1, \reg2, [\addr], \post_inc;
+8889:			nop;
+			nop;
+		alternative_else
+			sttr	\reg1, [\addr];
+			sttr	\reg2, [\addr, #8];
+			add	\addr, \addr, \post_inc;
+		alternative_endif
+
+		_asm_extable	8888b,\l;
+		_asm_extable	8889b,\l;
+	.endm
+
+	.macro uao_user_alternative l, inst, alt_inst, reg, addr, post_inc
+		alternative_if_not ARM64_HAS_UAO
+8888:			\inst	\reg, [\addr], \post_inc;
+			nop;
+		alternative_else
+			\alt_inst	\reg, [\addr];
+			add		\addr, \addr, \post_inc;
+		alternative_endif
+
+		_asm_extable	8888b,\l;
+	.endm
+#else
+	.macro uao_ldp l, reg1, reg2, addr, post_inc
+		USER(\l, ldp \reg1, \reg2, [\addr], \post_inc)
+	.endm
+	.macro uao_stp l, reg1, reg2, addr, post_inc
+		USER(\l, stp \reg1, \reg2, [\addr], \post_inc)
+	.endm
+	.macro uao_user_alternative l, inst, alt_inst, reg, addr, post_inc
+		USER(\l, \inst \reg, [\addr], \post_inc)
+	.endm
+#endif
+
 #endif
diff --git a/arch/arm64/lib/mte.S b/arch/arm64/lib/mte.S
index 03ca6d8b8670..cceed41bba15 100644
--- a/arch/arm64/lib/mte.S
+++ b/arch/arm64/lib/mte.S
@@ -4,7 +4,7 @@
  */
 #include <linux/linkage.h>
 
-#include <asm/alternative.h>
+#include <asm/asm-uaccess.h>
 #include <asm/assembler.h>
 #include <asm/mte.h>
 #include <asm/page.h>
-- 
2.11.0