[src/trunk]: src/sys/arch/arm/arm32 arm/bus_dma: Fix misleading comment:

[rin <rin%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/5f4ee2cd8205
branches:  trunk
changeset: 378250:5f4ee2cd8205
user:      rin <rin%NetBSD.org@localhost>
date:      Fri Jul 28 06:21:02 2023 +0000

description:
arm/bus_dma: Fix misleading comment:

- * For a virtually-indexed write-back cache, we need
- * to do the following things:
+ * For a write-back cache, we need to do the following things:

This comment was written long ago when we supported only virtually-
indexed caches for arm. But subsequent comments are valid also for
physically-indexed cache.

diffstat:

 sys/arch/arm/arm32/bus_dma.c |  7 +++----
 1 files changed, 3 insertions(+), 4 deletions(-)

diffs (28 lines):

diff -r e1a75ef547a7 -r 5f4ee2cd8205 sys/arch/arm/arm32/bus_dma.c
--- a/sys/arch/arm/arm32/bus_dma.c      Fri Jul 28 05:06:44 2023 +0000
+++ b/sys/arch/arm/arm32/bus_dma.c      Fri Jul 28 06:21:02 2023 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: bus_dma.c,v 1.143 2023/04/03 06:42:57 skrll Exp $      */
+/*     $NetBSD: bus_dma.c,v 1.144 2023/07/28 06:21:02 rin Exp $        */
 
 /*-
  * Copyright (c) 1996, 1997, 1998, 2020 The NetBSD Foundation, Inc.
@@ -36,7 +36,7 @@
 #include "opt_cputypes.h"
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: bus_dma.c,v 1.143 2023/04/03 06:42:57 skrll Exp $");
+__KERNEL_RCSID(0, "$NetBSD: bus_dma.c,v 1.144 2023/07/28 06:21:02 rin Exp $");
 
 #include <sys/param.h>
 
@@ -1114,8 +1114,7 @@ void
            len, offset, map->dm_mapsize);
 
        /*
-        * For a virtually-indexed write-back cache, we need
-        * to do the following things:
+        * For a write-back cache, we need to do the following things:
         *
         *      PREREAD -- Invalidate the D-cache.  We do this
         *      here in case a write-back is required by the back-end.