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[src/trunk]: src/sys/arch/aarch64 PID_MAX is just an initial value (soft maxi...
details: https://anonhg.NetBSD.org/src/rev/c4645bdc8ec7
branches: trunk
changeset: 938763:c4645bdc8ec7
user: ryo <ryo%NetBSD.org@localhost>
date: Mon Sep 14 10:06:35 2020 +0000
description:
PID_MAX is just an initial value (soft maximum). Don't use it for CTASSERT.
defined __HAVE_CPU_MAXPROC to use function cpu_maxproc().
pointed out by mrg@, thanks.
diffstat:
sys/arch/aarch64/aarch64/pmap.c | 14 ++++++++++----
sys/arch/aarch64/include/cpu.h | 3 ++-
sys/arch/aarch64/include/types.h | 3 ++-
3 files changed, 14 insertions(+), 6 deletions(-)
diffs (76 lines):
diff -r b600fcdcd00e -r c4645bdc8ec7 sys/arch/aarch64/aarch64/pmap.c
--- a/sys/arch/aarch64/aarch64/pmap.c Mon Sep 14 09:47:43 2020 +0000
+++ b/sys/arch/aarch64/aarch64/pmap.c Mon Sep 14 10:06:35 2020 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: pmap.c,v 1.88 2020/09/06 17:38:10 ryo Exp $ */
+/* $NetBSD: pmap.c,v 1.89 2020/09/14 10:06:35 ryo Exp $ */
/*
* Copyright (c) 2017 Ryo Shimizu <ryo%nerv.org@localhost>
@@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.88 2020/09/06 17:38:10 ryo Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.89 2020/09/14 10:06:35 ryo Exp $");
#include "opt_arm_debug.h"
#include "opt_ddb.h"
@@ -1413,6 +1413,13 @@
pm_unlock(pm);
}
+/* XXX: due to the current implementation of pmap depends on 16bit ASID */
+int
+cpu_maxproc(void)
+{
+ return 65535;
+}
+
void
pmap_activate(struct lwp *l)
{
@@ -1436,8 +1443,7 @@
reg_tcr_el1_write(tcr | TCR_EPD0);
__asm __volatile("isb" ::: "memory");
- /* XXX */
- CTASSERT(PID_MAX <= 65535); /* 16bit ASID */
+ /* XXX: allocate asid, and regenerate if needed */
if (pm->pm_asid == -1)
pm->pm_asid = l->l_proc->p_pid;
diff -r b600fcdcd00e -r c4645bdc8ec7 sys/arch/aarch64/include/cpu.h
--- a/sys/arch/aarch64/include/cpu.h Mon Sep 14 09:47:43 2020 +0000
+++ b/sys/arch/aarch64/include/cpu.h Mon Sep 14 10:06:35 2020 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: cpu.h,v 1.26 2020/08/12 13:19:35 skrll Exp $ */
+/* $NetBSD: cpu.h,v 1.27 2020/09/14 10:06:35 ryo Exp $ */
/*-
* Copyright (c) 2014, 2020 The NetBSD Foundation, Inc.
@@ -147,6 +147,7 @@
#undef curlwp
#define curlwp (aarch64_curlwp())
+int cpu_maxproc(void);
void cpu_signotify(struct lwp *l);
void cpu_need_proftick(struct lwp *l);
diff -r b600fcdcd00e -r c4645bdc8ec7 sys/arch/aarch64/include/types.h
--- a/sys/arch/aarch64/include/types.h Mon Sep 14 09:47:43 2020 +0000
+++ b/sys/arch/aarch64/include/types.h Mon Sep 14 10:06:35 2020 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: types.h,v 1.15 2020/08/03 06:30:00 ryo Exp $ */
+/* $NetBSD: types.h,v 1.16 2020/09/14 10:06:35 ryo Exp $ */
/*-
* Copyright (c) 2014 The NetBSD Foundation, Inc.
@@ -96,6 +96,7 @@
#define __HAVE_COMMON___TLS_GET_ADDR
#define __HAVE_CPU_COUNTER
#define __HAVE_CPU_DATA_FIRST
+#define __HAVE_CPU_MAXPROC
#define __HAVE_FAST_SOFTINTS
#define __HAVE_MINIMAL_EMUL
#define __HAVE_MM_MD_DIRECT_MAPPED_PHYS
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