Module Name: src
Committed By: jruoho
Date: Sun Jan 2 05:48:55 UTC 2011
Modified Files:
src/sys/dev/acpi: acpi_timer.c
Log Message:
Print a warning if the BIOS thinks that the timer is unreliable. However, do
not touch the quality of the timecounter(9) based on this information.
To generate a diff of this commit:
cvs rdiff -u -r1.18 -r1.19 src/sys/dev/acpi/acpi_timer.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/dev/acpi/acpi_timer.c
diff -u src/sys/dev/acpi/acpi_timer.c:1.18 src/sys/dev/acpi/acpi_timer.c:1.19
--- src/sys/dev/acpi/acpi_timer.c:1.18 Sat Jul 10 19:37:38 2010
+++ src/sys/dev/acpi/acpi_timer.c Sun Jan 2 05:48:55 2011
@@ -1,4 +1,4 @@
-/* $NetBSD: acpi_timer.c,v 1.18 2010/07/10 19:37:38 jruoho Exp $ */
+/* $NetBSD: acpi_timer.c,v 1.19 2011/01/02 05:48:55 jruoho Exp $ */
/*-
* Copyright (c) 2006 Matthias Drochner <droch...@netbsd.org>
@@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: acpi_timer.c,v 1.18 2010/07/10 19:37:38 jruoho Exp $");
+__KERNEL_RCSID(0, "$NetBSD: acpi_timer.c,v 1.19 2011/01/02 05:48:55 jruoho Exp $");
#include <sys/types.h>
#include <sys/systm.h>
@@ -55,13 +55,14 @@
int
acpitimer_init(struct acpi_softc *sc)
{
- ACPI_STATUS res;
+ const uint32_t flags = AcpiGbl_FADT.Flags;
+ ACPI_STATUS rv;
uint32_t bits;
int i, j;
- res = AcpiGetTimerResolution(&bits);
+ rv = AcpiGetTimerResolution(&bits);
- if (res != AE_OK)
+ if (ACPI_FAILURE(rv))
return -1;
if (bits == 32)
@@ -78,8 +79,12 @@
tc_init(&acpi_timecounter);
- aprint_debug_dev(sc->sc_dev,
- "%s %d-bit timer\n", acpi_timecounter.tc_name, bits);
+ aprint_debug_dev(sc->sc_dev, "%s %d-bit timer\n",
+ acpi_timecounter.tc_name, bits);
+
+ if ((flags & ACPI_FADT_PLATFORM_CLOCK) != 0)
+ aprint_debug_dev(sc->sc_dev,
+ "warning: timer may be unreliable\n");
return 0;
}
