Module Name: src
Committed By: rin
Date: Thu Mar 5 01:13:00 UTC 2020
Modified Files:
src/sys/arch/powerpc/ibm4xx: copyinstr.c copyoutstr.c
Log Message:
Use dcbst instead of dcbf to flush cache; the former does not invalidate
the cache line, which should be used immediately in most cases.
To generate a diff of this commit:
cvs rdiff -u -r1.11 -r1.12 src/sys/arch/powerpc/ibm4xx/copyinstr.c \
src/sys/arch/powerpc/ibm4xx/copyoutstr.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/powerpc/ibm4xx/copyinstr.c
diff -u src/sys/arch/powerpc/ibm4xx/copyinstr.c:1.11 src/sys/arch/powerpc/ibm4xx/copyinstr.c:1.12
--- src/sys/arch/powerpc/ibm4xx/copyinstr.c:1.11 Thu Mar 5 01:10:57 2020
+++ src/sys/arch/powerpc/ibm4xx/copyinstr.c Thu Mar 5 01:13:00 2020
@@ -1,4 +1,4 @@
-/* $NetBSD: copyinstr.c,v 1.11 2020/03/05 01:10:57 rin Exp $ */
+/* $NetBSD: copyinstr.c,v 1.12 2020/03/05 01:13:00 rin Exp $ */
/*
* Copyright 2001 Wasabi Systems, Inc.
@@ -36,7 +36,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: copyinstr.c,v 1.11 2020/03/05 01:10:57 rin Exp $");
+__KERNEL_RCSID(0, "$NetBSD: copyinstr.c,v 1.12 2020/03/05 01:13:00 rin Exp $");
#include <sys/param.h>
#include <uvm/uvm_extern.h>
@@ -83,7 +83,7 @@ copyinstr(const void *udaddr, void *kadd
"lbz %2,0(%5); addi %5,%5,1;" /* Load byte */
"sync; isync;"
"mtpid %1;sync;"
- "stb %2,0(%6); dcbf 0,%6; addi %6,%6,1;"
+ "stb %2,0(%6); dcbst 0,%6; addi %6,%6,1;"
/* Store kernel byte */
"sync; isync;"
"or. %2,%2,%2;"
Index: src/sys/arch/powerpc/ibm4xx/copyoutstr.c
diff -u src/sys/arch/powerpc/ibm4xx/copyoutstr.c:1.11 src/sys/arch/powerpc/ibm4xx/copyoutstr.c:1.12
--- src/sys/arch/powerpc/ibm4xx/copyoutstr.c:1.11 Thu Mar 5 01:10:57 2020
+++ src/sys/arch/powerpc/ibm4xx/copyoutstr.c Thu Mar 5 01:13:00 2020
@@ -1,4 +1,4 @@
-/* $NetBSD: copyoutstr.c,v 1.11 2020/03/05 01:10:57 rin Exp $ */
+/* $NetBSD: copyoutstr.c,v 1.12 2020/03/05 01:13:00 rin Exp $ */
/*
* Copyright 2001 Wasabi Systems, Inc.
@@ -36,7 +36,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: copyoutstr.c,v 1.11 2020/03/05 01:10:57 rin Exp $");
+__KERNEL_RCSID(0, "$NetBSD: copyoutstr.c,v 1.12 2020/03/05 01:13:00 rin Exp $");
#include <sys/param.h>
#include <uvm/uvm_extern.h>
@@ -83,7 +83,7 @@ copyoutstr(const void *kaddr, void *udad
"lbz %2,0(%6); addi %6,%6,1;" /* Store kernel byte */
"sync; isync;"
"mtpid %4; sync;" /* Load user ctx */
- "stb %2,0(%5); dcbf 0,%5; addi %5,%5,1;"
+ "stb %2,0(%5); dcbst 0,%5; addi %5,%5,1;"
/* Load byte */
"sync; isync;"
"or. %2,%2,%2;"
