Module Name: src
Committed By: thorpej
Date: Fri Jul 16 19:13:21 UTC 2021
Modified Files:
src/sys/arch/alpha/alpha: vm_machdep.c
Log Message:
Instrument success/faulure of phyisically contiguous uarea allocation.
To generate a diff of this commit:
cvs rdiff -u -r1.120 -r1.121 src/sys/arch/alpha/alpha/vm_machdep.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/alpha/alpha/vm_machdep.c
diff -u src/sys/arch/alpha/alpha/vm_machdep.c:1.120 src/sys/arch/alpha/alpha/vm_machdep.c:1.121
--- src/sys/arch/alpha/alpha/vm_machdep.c:1.120 Tue Jul 6 12:20:52 2021
+++ src/sys/arch/alpha/alpha/vm_machdep.c Fri Jul 16 19:13:21 2021
@@ -1,4 +1,4 @@
-/* $NetBSD: vm_machdep.c,v 1.120 2021/07/06 12:20:52 thorpej Exp $ */
+/* $NetBSD: vm_machdep.c,v 1.121 2021/07/16 19:13:21 thorpej Exp $ */
/*
* Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University.
@@ -29,7 +29,7 @@
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
-__KERNEL_RCSID(0, "$NetBSD: vm_machdep.c,v 1.120 2021/07/06 12:20:52 thorpej Exp $");
+__KERNEL_RCSID(0, "$NetBSD: vm_machdep.c,v 1.121 2021/07/16 19:13:21 thorpej Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@@ -248,6 +248,14 @@ vunmapbuf(struct buf *bp, vsize_t len)
}
#ifdef __HAVE_CPU_UAREA_ROUTINES
+static struct evcnt uarea_direct_success =
+ EVCNT_INITIALIZER(EVCNT_TYPE_MISC, NULL, "uarea direct", "success");
+static struct evcnt uarea_direct_failure =
+ EVCNT_INITIALIZER(EVCNT_TYPE_MISC, NULL, "uarea direct", "failure");
+
+EVCNT_ATTACH_STATIC(uarea_direct_success);
+EVCNT_ATTACH_STATIC(uarea_direct_failure);
+
void *
cpu_uarea_alloc(bool system)
{
@@ -259,8 +267,11 @@ cpu_uarea_alloc(bool system)
* direct-mapped.
*/
error = uvm_pglistalloc(USPACE, 0, ptoa(physmem), 0, 0, &pglist, 1, 1);
- if (error)
+ if (error) {
+ atomic_inc_ulong(&uarea_direct_failure.ev_count);
return NULL;
+ }
+ atomic_inc_ulong(&uarea_direct_success.ev_count);
/*
* Get the physical address from the first page.
