[src/trunk]: src/sys/arch/sparc64/include Avoid using (1<<64)-1 for VM_MAX{,U...

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

details:   https://anonhg.NetBSD.org/src/rev/6948650fd551
branches:  trunk
changeset: 373402:6948650fd551
user:      hgutch <hgutch%NetBSD.org@localhost>
date:      Tue Feb 07 14:11:16 2023 +0000

description:
Avoid using (1<<64)-1 for VM_MAX{,USER}_ADDRESS as rounding that up to
the next page boundary gives 0 and instead make the VA space end one
page earlier.

Fixes PR sparc64/57219.

diffstat:

 sys/arch/sparc64/include/vmparam.h |  6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diffs (20 lines):

diff -r 8678976ddbf2 -r 6948650fd551 sys/arch/sparc64/include/vmparam.h
--- a/sys/arch/sparc64/include/vmparam.h        Tue Feb 07 09:25:51 2023 +0000
+++ b/sys/arch/sparc64/include/vmparam.h        Tue Feb 07 14:11:16 2023 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: vmparam.h,v 1.42 2021/02/26 02:01:16 simonb Exp $ */
+/*     $NetBSD: vmparam.h,v 1.43 2023/02/07 14:11:16 hgutch Exp $ */
 
 /*
  * Copyright (c) 1992, 1993
@@ -176,8 +176,8 @@
  * User/kernel map constants.
  */
 #define VM_MIN_ADDRESS         ((vaddr_t)0)
-#define VM_MAX_ADDRESS         ((vaddr_t)-1)
-#define VM_MAXUSER_ADDRESS     ((vaddr_t)-1)
+#define VM_MAX_ADDRESS         (((vaddr_t)(-1))&~PGOFSET)
+#define VM_MAXUSER_ADDRESS     VM_MAX_ADDRESS
 #define VM_MAXUSER_ADDRESS32   ((vaddr_t)(0x00000000ffffffffL&~PGOFSET))
 
 #define VM_MIN_KERNEL_ADDRESS  ((vaddr_t)KERNBASE)