From 806d42fb8fef226f37c2d1ec18a75aab3cc7d9a8 Mon Sep 17 00:00:00 2001
From: thorpej <thorpej@NetBSD.org>
Date: Sat, 3 Oct 2020 17:33:23 +0000
Subject: [PATCH] Add a comment describing the rpb::rpb_vptb field.

---
 sys/arch/alpha/include/rpb.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sys/arch/alpha/include/rpb.h b/sys/arch/alpha/include/rpb.h
index 72afd0e67b68..8b39319d4ebc 100644
--- a/sys/arch/alpha/include/rpb.h
+++ b/sys/arch/alpha/include/rpb.h
@@ -1,4 +1,4 @@
-/* $NetBSD: rpb.h,v 1.43 2019/04/08 00:47:21 thorpej Exp $ */
+/* $NetBSD: rpb.h,v 1.44 2020/10/03 17:33:23 thorpej Exp $ */
 
 /*
  * Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University.
@@ -190,7 +190,7 @@ struct rpb {
 	char		rpb_revision[8];	/*  60; only first 4 valid */
 	uint64_t	rpb_intr_freq;		/*  68; scaled by 4096 */
 	uint64_t	rpb_cc_freq;		/*  70: cycle cntr frequency */
-	u_long		rpb_vptb;		/*  78: */
+	u_long		rpb_vptb;		/*  78: virtual page tbl base */
 	uint64_t	rpb_reserved_arch;	/*  80: */
 	u_long		rpb_tbhint_off;		/*  88: */
 	uint64_t	rpb_pcs_cnt;		/*  90: */