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Date: Thu, 18 Jun 2009 09:41:52 +0200
From: Wim Van Sebroeck <wim@...ana.be>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>,
LKML <linux-kernel@...r.kernel.org>,
Thomas Mingarelli <thomas.mingarelli@...com>,
"Denis V. Lunev" <den@...nvz.org>
Subject: [WATCHDOG] v2.6.31-rc patches - Part 1: watchdog fixes, clean-up
and changes
Hi Linus,
Please pull from 'master' branch of
git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog.git
or if master.kernel.org hasn't synced up yet:
master.kernel.org:/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog.git
This will update the following files:
Documentation/watchdog/hpwdt.txt | 84 +++++++++++++++++++++++++++++++
drivers/watchdog/alim7101_wdt.c | 15 ++++-
drivers/watchdog/ar7_wdt.c | 3 -
drivers/watchdog/at91rm9200_wdt.c | 3 -
drivers/watchdog/at91sam9_wdt.c | 3 -
drivers/watchdog/bfin_wdt.c | 14 +++--
drivers/watchdog/cpwd.c | 6 +-
drivers/watchdog/davinci_wdt.c | 6 +-
drivers/watchdog/hpwdt.c | 59 ++++++++++++++++------
drivers/watchdog/iTCO_vendor_support.c | 88 +++++++++++++++++++++++++++++----
drivers/watchdog/iTCO_wdt.c | 36 +++++++------
drivers/watchdog/indydog.c | 4 -
drivers/watchdog/it8712f_wdt.c | 3 -
drivers/watchdog/ks8695_wdt.c | 4 -
drivers/watchdog/machzwd.c | 9 ++-
drivers/watchdog/mpcore_wdt.c | 7 +-
drivers/watchdog/mtx-1_wdt.c | 6 +-
drivers/watchdog/pnx4008_wdt.c | 6 +-
drivers/watchdog/rdc321x_wdt.c | 4 -
drivers/watchdog/rm9k_wdt.c | 6 +-
drivers/watchdog/s3c2410_wdt.c | 32 +++++-------
drivers/watchdog/sb_wdog.c | 9 +--
drivers/watchdog/sbc60xxwdt.c | 5 +
drivers/watchdog/sbc8360.c | 4 -
drivers/watchdog/sbc_epx_c3.c | 12 ++--
drivers/watchdog/scx200_wdt.c | 7 +-
drivers/watchdog/shwdt.c | 4 +
drivers/watchdog/softdog.c | 7 +-
drivers/watchdog/w83697hf_wdt.c | 3 -
drivers/watchdog/wdrtas.c | 7 --
30 files changed, 335 insertions(+), 121 deletions(-)
with these Changes:
Author: Thomas Mingarelli <thomas.mingarelli@...com>
Date: Thu Jun 4 19:50:45 2009 +0000
[WATCHDOG] hpwdt: Add NMI sourcing
Add NMI sourcing functionality (Can only be active if nmi_watchdog is
inactive).
Signed-off-by: Thomas Mingarelli <thomas.mingarelli@...com>
Signed-off-by: Wim Van Sebroeck <wim@...ana.be>
Author: Wim Van Sebroeck <wim@...ana.be>
Date: Mon Jun 8 17:41:51 2009 +0000
[WATCHDOG] iTCO_wdt: Fix ICH7+ reboot issue.
Bugzilla: 9868 & 10195.
There seems to be a bug into the SMM code that handles TCO Timeout SMI.
Andriy Gapon found that the code on his DG33TL system does the following:
> The handler is quite simple - it tests value in TCO1_CNT against 0x800, i.e.
> checks TCO_TMR_HLT. If the bit is set the handler goes into an infinite loop,
> apparently to allow the second timeout and reboot. Otherwise it simply clears
> TIMEOUT bit in TCO1_STS and that's it.
> So the logic seems to be reversed, because it is hard to see how TIMEOUT can
> get set to 1 and SMI generated when TCO_TMR_HLT is set (other than a
> transitional effect).
The only trick we have is to bypass the SMM code by turning of the generation
of the SMI#. The trick can only be enabled by setting the vendorsupport module
parameter to 911. This trick doesn't work well on laptop's.
Note: this is a dirty hack. Please handle with care. The only real fix is that
the bug in the SMM bios code get's fixed.
Signed-off-by: Wim Van Sebroeck <wim@...ana.be>
Author: Denis V. Lunev <den@...nvz.org>
Date: Fri Jun 5 15:13:08 2009 +0400
[WATCHDOG] iTCO_wdt: fix memory corruption when RCBA is disabled by hardware
According to 9.1.33 on p.343 of ICH8.pdf RCBA can be disabled by
hardware if bit 0 of RCBA register is not set.
Perform correct check for this to prevent memory corruption under
some virtual machines where this feature is disabled.
Signed-off-by: Denis V. Lunev <den@...nvz.org>
CC: Vasily Averin <vvs@...nvz.org>
Signed-off-by: Wim Van Sebroeck <wim@...ana.be>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
Author: Wim Van Sebroeck <wim@...ana.be>
Date: Mon May 11 18:33:00 2009 +0000
[WATCHDOG] Correct WDIOF_MAGICCLOSE flag
Make sure that when the WDIOF_MAGICCLOSE flag is set we also
support the magic-close feature...
Signed-off-by: Wim Van Sebroeck <wim@...ana.be>
Author: Wim Van Sebroeck <wim@...ana.be>
Date: Tue Apr 14 20:30:55 2009 +0000
[WATCHDOG] move platform probe and remove function to devinit and devexit
A pointer to probe and remove functions is passed to the core via
platform_driver_register and so the function must not disappear when the
.init sections are discarded. Otherwise (if also having HOTPLUG=y)
unbinding and binding a device to the driver via sysfs will result in an
oops as does a device being registered late.
Signed-off-by: Wim Van Sebroeck <wim@...ana.be>
Author: Wim Van Sebroeck <wim@...ana.be>
Date: Tue Apr 14 20:20:07 2009 +0000
[WATCHDOG] Some more general cleanup
Clean-up the watchdog drivers so that checkpatch.pl get's happy...
Signed-off-by: Wim Van Sebroeck <wim@...ana.be>
Author: Wim Van Sebroeck <wim@...ana.be>
Date: Tue Apr 14 20:20:07 2009 +0000
[WATCHDOG] iTCO_wdt: Cleanup code
Clean-up the iTCO_wdt code so that checkpatch.pl get's happy...
Signed-off-by: Wim Van Sebroeck <wim@...ana.be>
The Changes can also be looked at on:
http://www.kernel.org/git/?p=linux/kernel/git/wim/linux-2.6-watchdog.git;a=summary
For completeness, I added the overal diff below.
Greetings,
Wim.
================================================================================
diff --git a/Documentation/watchdog/hpwdt.txt b/Documentation/watchdog/hpwdt.txt
new file mode 100644
index 0000000..127839e
--- /dev/null
+++ b/Documentation/watchdog/hpwdt.txt
@@ -0,0 +1,84 @@
+Last reviewed: 06/02/2009
+
+ HP iLO2 NMI Watchdog Driver
+ NMI sourcing for iLO2 based ProLiant Servers
+ Documentation and Driver by
+ Thomas Mingarelli <thomas.mingarelli@...com>
+
+ The HP iLO2 NMI Watchdog driver is a kernel module that provides basic
+ watchdog functionality and the added benefit of NMI sourcing. Both the
+ watchdog functionality and the NMI sourcing capability need to be enabled
+ by the user. Remember that the two modes are not dependant on one another.
+ A user can have the NMI sourcing without the watchdog timer and vice-versa.
+
+ Watchdog functionality is enabled like any other common watchdog driver. That
+ is, an application needs to be started that kicks off the watchdog timer. A
+ basic application exists in the Documentation/watchdog/src directory called
+ watchdog-test.c. Simply compile the C file and kick it off. If the system
+ gets into a bad state and hangs, the HP ProLiant iLO 2 timer register will
+ not be updated in a timely fashion and a hardware system reset (also known as
+ an Automatic Server Recovery (ASR)) event will occur.
+
+ The hpwdt driver also has three (3) module parameters. They are the following:
+
+ soft_margin - allows the user to set the watchdog timer value
+ allow_kdump - allows the user to save off a kernel dump image after an NMI
+ nowayout - basic watchdog parameter that does not allow the timer to
+ be restarted or an impending ASR to be escaped.
+
+ NOTE: More information about watchdog drivers in general, including the ioctl
+ interface to /dev/watchdog can be found in
+ Documentation/watchdog/watchdog-api.txt and Documentation/IPMI.txt.
+
+ The NMI sourcing capability is disabled when the driver discovers that the
+ nmi_watchdog is turned on (nmi_watchdog = 1). This is due to the inability to
+ distinguish between "NMI Watchdog Ticks" and "HW generated NMI events" in the
+ Linux kernel. What this means is that the hpwdt nmi handler code is called
+ each time the NMI signal fires off. This could amount to several thousands of
+ NMIs in a matter of seconds. If a user sees the Linux kernel's "dazed and
+ confused" message in the logs or if the system gets into a hung state, then
+ the user should reboot with nmi_watchdog=0.
+
+ 1. If the kernel has not been booted with nmi_watchdog turned off then
+ edit /boot/grub/menu.lst and place the nmi_watchdog=0 at the end of the
+ currently booting kernel line.
+ 2. reboot the sever
+
+ Now, the hpwdt can successfully receive and source the NMI and provide a log
+ message that details the reason for the NMI (as determined by the HP BIOS).
+
+ Below is a list of NMIs the HP BIOS understands along with the associated
+ code (reason):
+
+ No source found 00h
+
+ Uncorrectable Memory Error 01h
+
+ ASR NMI 1Bh
+
+ PCI Parity Error 20h
+
+ NMI Button Press 27h
+
+ SB_BUS_NMI 28h
+
+ ILO Doorbell NMI 29h
+
+ ILO IOP NMI 2Ah
+
+ ILO Watchdog NMI 2Bh
+
+ Proc Throt NMI 2Ch
+
+ Front Side Bus NMI 2Dh
+
+ PCI Express Error 2Fh
+
+ DMA controller NMI 30h
+
+ Hypertransport/CSI Error 31h
+
+
+
+ -- Tom Mingarelli
+ (thomas.mingarelli@...com)
diff --git a/drivers/watchdog/alim7101_wdt.c b/drivers/watchdog/alim7101_wdt.c
index 90f98df..f90afdb 100644
--- a/drivers/watchdog/alim7101_wdt.c
+++ b/drivers/watchdog/alim7101_wdt.c
@@ -322,7 +322,8 @@ static int wdt_notify_sys(struct notifier_block *this,
* watchdog on reboot with no heartbeat
*/
wdt_change(WDT_ENABLE);
- printk(KERN_INFO PFX "Watchdog timer is now enabled with no heartbeat - should reboot in ~1 second.\n");
+ printk(KERN_INFO PFX "Watchdog timer is now enabled "
+ "with no heartbeat - should reboot in ~1 second.\n");
}
return NOTIFY_DONE;
}
@@ -374,12 +375,17 @@ static int __init alim7101_wdt_init(void)
pci_dev_put(ali1543_south);
if ((tmp & 0x1e) == 0x00) {
if (!use_gpio) {
- printk(KERN_INFO PFX "Detected old alim7101 revision 'a1d'. If this is a cobalt board, set the 'use_gpio' module parameter.\n");
+ printk(KERN_INFO PFX
+ "Detected old alim7101 revision 'a1d'. "
+ "If this is a cobalt board, set the 'use_gpio' "
+ "module parameter.\n");
goto err_out;
}
nowayout = 1;
} else if ((tmp & 0x1e) != 0x12 && (tmp & 0x1e) != 0x00) {
- printk(KERN_INFO PFX "ALi 1543 South-Bridge does not have the correct revision number (???1001?) - WDT not set\n");
+ printk(KERN_INFO PFX
+ "ALi 1543 South-Bridge does not have the correct "
+ "revision number (???1001?) - WDT not set\n");
goto err_out;
}
@@ -409,7 +415,8 @@ static int __init alim7101_wdt_init(void)
if (nowayout)
__module_get(THIS_MODULE);
- printk(KERN_INFO PFX "WDT driver for ALi M7101 initialised. timeout=%d sec (nowayout=%d)\n",
+ printk(KERN_INFO PFX "WDT driver for ALi M7101 initialised. "
+ "timeout=%d sec (nowayout=%d)\n",
timeout, nowayout);
return 0;
diff --git a/drivers/watchdog/ar7_wdt.c b/drivers/watchdog/ar7_wdt.c
index 55dcbfe..3fe9742 100644
--- a/drivers/watchdog/ar7_wdt.c
+++ b/drivers/watchdog/ar7_wdt.c
@@ -246,7 +246,8 @@ static long ar7_wdt_ioctl(struct file *file,
static struct watchdog_info ident = {
.identity = LONGNAME,
.firmware_version = 1,
- .options = (WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING),
+ .options = (WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING |
+ WDIOF_MAGICCLOSE),
};
int new_margin;
diff --git a/drivers/watchdog/at91rm9200_wdt.c b/drivers/watchdog/at91rm9200_wdt.c
index 29e52c2..b185daf 100644
--- a/drivers/watchdog/at91rm9200_wdt.c
+++ b/drivers/watchdog/at91rm9200_wdt.c
@@ -268,7 +268,8 @@ static int __init at91_wdt_init(void)
if not reset to the default */
if (at91_wdt_settimeout(wdt_time)) {
at91_wdt_settimeout(WDT_DEFAULT_TIME);
- pr_info("at91_wdt: wdt_time value must be 1 <= wdt_time <= 256, using %d\n", wdt_time);
+ pr_info("at91_wdt: wdt_time value must be 1 <= wdt_time <= 256"
+ ", using %d\n", wdt_time);
}
return platform_driver_register(&at91wdt_driver);
diff --git a/drivers/watchdog/at91sam9_wdt.c b/drivers/watchdog/at91sam9_wdt.c
index 435b057..eac2602 100644
--- a/drivers/watchdog/at91sam9_wdt.c
+++ b/drivers/watchdog/at91sam9_wdt.c
@@ -156,7 +156,8 @@ static int at91_wdt_settimeout(unsigned int timeout)
static const struct watchdog_info at91_wdt_info = {
.identity = DRV_NAME,
- .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING,
+ .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING |
+ WDIOF_MAGICCLOSE,
};
/*
diff --git a/drivers/watchdog/bfin_wdt.c b/drivers/watchdog/bfin_wdt.c
index 067a57c..c7b3f9d 100644
--- a/drivers/watchdog/bfin_wdt.c
+++ b/drivers/watchdog/bfin_wdt.c
@@ -27,10 +27,15 @@
#include <linux/uaccess.h>
#include <asm/blackfin.h>
-#define stamp(fmt, args...) pr_debug("%s:%i: " fmt "\n", __func__, __LINE__, ## args)
+#define stamp(fmt, args...) \
+ pr_debug("%s:%i: " fmt "\n", __func__, __LINE__, ## args)
#define stampit() stamp("here i am")
-#define pr_devinit(fmt, args...) ({ static const __devinitconst char __fmt[] = fmt; printk(__fmt, ## args); })
-#define pr_init(fmt, args...) ({ static const __initconst char __fmt[] = fmt; printk(__fmt, ## args); })
+#define pr_devinit(fmt, args...) \
+ ({ static const __devinitconst char __fmt[] = fmt; \
+ printk(__fmt, ## args); })
+#define pr_init(fmt, args...) \
+ ({ static const __initconst char __fmt[] = fmt; \
+ printk(__fmt, ## args); })
#define WATCHDOG_NAME "bfin-wdt"
#define PFX WATCHDOG_NAME ": "
@@ -476,7 +481,8 @@ static int __init bfin_wdt_init(void)
return ret;
}
- bfin_wdt_device = platform_device_register_simple(WATCHDOG_NAME, -1, NULL, 0);
+ bfin_wdt_device = platform_device_register_simple(WATCHDOG_NAME,
+ -1, NULL, 0);
if (IS_ERR(bfin_wdt_device)) {
pr_init(KERN_ERR PFX "unable to register device\n");
platform_driver_unregister(&bfin_wdt_driver);
diff --git a/drivers/watchdog/cpwd.c b/drivers/watchdog/cpwd.c
index 41070e4..081f295 100644
--- a/drivers/watchdog/cpwd.c
+++ b/drivers/watchdog/cpwd.c
@@ -154,9 +154,9 @@ static struct cpwd *cpwd_device;
static struct timer_list cpwd_timer;
-static int wd0_timeout = 0;
-static int wd1_timeout = 0;
-static int wd2_timeout = 0;
+static int wd0_timeout;
+static int wd1_timeout;
+static int wd2_timeout;
module_param(wd0_timeout, int, 0);
MODULE_PARM_DESC(wd0_timeout, "Default watchdog0 timeout in 1/10secs");
diff --git a/drivers/watchdog/davinci_wdt.c b/drivers/watchdog/davinci_wdt.c
index c51d0b0..83e22e7 100644
--- a/drivers/watchdog/davinci_wdt.c
+++ b/drivers/watchdog/davinci_wdt.c
@@ -193,7 +193,7 @@ static struct miscdevice davinci_wdt_miscdev = {
.fops = &davinci_wdt_fops,
};
-static int davinci_wdt_probe(struct platform_device *pdev)
+static int __devinit davinci_wdt_probe(struct platform_device *pdev)
{
int ret = 0, size;
struct resource *res;
@@ -237,7 +237,7 @@ static int davinci_wdt_probe(struct platform_device *pdev)
return ret;
}
-static int davinci_wdt_remove(struct platform_device *pdev)
+static int __devexit davinci_wdt_remove(struct platform_device *pdev)
{
misc_deregister(&davinci_wdt_miscdev);
if (wdt_mem) {
@@ -254,7 +254,7 @@ static struct platform_driver platform_wdt_driver = {
.owner = THIS_MODULE,
},
.probe = davinci_wdt_probe,
- .remove = davinci_wdt_remove,
+ .remove = __devexit_p(davinci_wdt_remove),
};
static int __init davinci_wdt_init(void)
diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c
index 3137361..c0b9169 100644
--- a/drivers/watchdog/hpwdt.c
+++ b/drivers/watchdog/hpwdt.c
@@ -19,6 +19,7 @@
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/irq.h>
+#include <linux/nmi.h>
#include <linux/kernel.h>
#include <linux/miscdevice.h>
#include <linux/mm.h>
@@ -47,7 +48,7 @@
#define PCI_BIOS32_PARAGRAPH_LEN 16
#define PCI_ROM_BASE1 0x000F0000
#define ROM_SIZE 0x10000
-#define HPWDT_VERSION "1.01"
+#define HPWDT_VERSION "1.1.1"
struct bios32_service_dir {
u32 signature;
@@ -119,6 +120,7 @@ static int nowayout = WATCHDOG_NOWAYOUT;
static char expect_release;
static unsigned long hpwdt_is_open;
static unsigned int allow_kdump;
+static int hpwdt_nmi_sourcing;
static void __iomem *pci_mem_addr; /* the PCI-memory address */
static unsigned long __iomem *hpwdt_timer_reg;
@@ -468,21 +470,22 @@ static int hpwdt_pretimeout(struct notifier_block *nb, unsigned long ulReason,
if (ulReason != DIE_NMI && ulReason != DIE_NMI_IPI)
return NOTIFY_OK;
- spin_lock_irqsave(&rom_lock, rom_pl);
- if (!die_nmi_called)
- asminline_call(&cmn_regs, cru_rom_addr);
- die_nmi_called = 1;
- spin_unlock_irqrestore(&rom_lock, rom_pl);
- if (cmn_regs.u1.ral == 0) {
- printk(KERN_WARNING "hpwdt: An NMI occurred, "
- "but unable to determine source.\n");
- } else {
- if (allow_kdump)
- hpwdt_stop();
- panic("An NMI occurred, please see the Integrated "
- "Management Log for details.\n");
+ if (hpwdt_nmi_sourcing) {
+ spin_lock_irqsave(&rom_lock, rom_pl);
+ if (!die_nmi_called)
+ asminline_call(&cmn_regs, cru_rom_addr);
+ die_nmi_called = 1;
+ spin_unlock_irqrestore(&rom_lock, rom_pl);
+ if (cmn_regs.u1.ral == 0) {
+ printk(KERN_WARNING "hpwdt: An NMI occurred, "
+ "but unable to determine source.\n");
+ } else {
+ if (allow_kdump)
+ hpwdt_stop();
+ panic("An NMI occurred, please see the Integrated "
+ "Management Log for details.\n");
+ }
}
-
return NOTIFY_OK;
}
@@ -627,12 +630,38 @@ static struct notifier_block die_notifier = {
* Init & Exit
*/
+#ifdef ARCH_HAS_NMI_WATCHDOG
+static void __devinit hpwdt_check_nmi_sourcing(struct pci_dev *dev)
+{
+ /*
+ * If nmi_watchdog is turned off then we can turn on
+ * our nmi sourcing capability.
+ */
+ if (!nmi_watchdog_active())
+ hpwdt_nmi_sourcing = 1;
+ else
+ dev_warn(&dev->dev, "NMI sourcing is disabled. To enable this "
+ "functionality you must reboot with nmi_watchdog=0.\n");
+}
+#else
+static void __devinit hpwdt_check_nmi_sourcing(struct pci_dev *dev)
+{
+ dev_warn(&dev->dev, "NMI sourcing is disabled. "
+ "Your kernel does not support a NMI Watchdog.\n");
+}
+#endif
+
static int __devinit hpwdt_init_one(struct pci_dev *dev,
const struct pci_device_id *ent)
{
int retval;
/*
+ * Check if we can do NMI sourcing or not
+ */
+ hpwdt_check_nmi_sourcing(dev);
+
+ /*
* First let's find out if we are on an iLO2 server. We will
* not run on a legacy ASM box.
* So we only support the G5 ProLiant servers and higher.
diff --git a/drivers/watchdog/iTCO_vendor_support.c b/drivers/watchdog/iTCO_vendor_support.c
index d3c0f6d..5133bca 100644
--- a/drivers/watchdog/iTCO_vendor_support.c
+++ b/drivers/watchdog/iTCO_vendor_support.c
@@ -19,7 +19,7 @@
/* Module and version information */
#define DRV_NAME "iTCO_vendor_support"
-#define DRV_VERSION "1.03"
+#define DRV_VERSION "1.04"
#define PFX DRV_NAME ": "
/* Includes */
@@ -35,20 +35,23 @@
#include "iTCO_vendor.h"
/* iTCO defines */
-#define SMI_EN acpibase + 0x30 /* SMI Control and Enable Register */
-#define TCOBASE acpibase + 0x60 /* TCO base address */
-#define TCO1_STS TCOBASE + 0x04 /* TCO1 Status Register */
+#define SMI_EN (acpibase + 0x30) /* SMI Control and Enable Register */
+#define TCOBASE (acpibase + 0x60) /* TCO base address */
+#define TCO1_STS (TCOBASE + 0x04) /* TCO1 Status Register */
/* List of vendor support modes */
/* SuperMicro Pentium 3 Era 370SSE+-OEM1/P3TSSE */
#define SUPERMICRO_OLD_BOARD 1
/* SuperMicro Pentium 4 / Xeon 4 / EMT64T Era Systems */
#define SUPERMICRO_NEW_BOARD 2
+/* Broken BIOS */
+#define BROKEN_BIOS 911
static int vendorsupport;
module_param(vendorsupport, int, 0);
MODULE_PARM_DESC(vendorsupport, "iTCO vendor specific support mode, default="
- "0 (none), 1=SuperMicro Pent3, 2=SuperMicro Pent4+");
+ "0 (none), 1=SuperMicro Pent3, 2=SuperMicro Pent4+, "
+ "911=Broken SMI BIOS");
/*
* Vendor Specific Support
@@ -243,25 +246,92 @@ static void supermicro_new_pre_set_heartbeat(unsigned int heartbeat)
}
/*
+ * Vendor Support: 911
+ * Board: Some Intel ICHx based motherboards
+ * iTCO chipset: ICH7+
+ *
+ * Some Intel motherboards have a broken BIOS implementation: i.e.
+ * the SMI handler clear's the TIMEOUT bit in the TC01_STS register
+ * and does not reload the time. Thus the TCO watchdog does not reboot
+ * the system.
+ *
+ * These are the conclusions of Andriy Gapon <avg@...b.net.ua> after
+ * debugging: the SMI handler is quite simple - it tests value in
+ * TCO1_CNT against 0x800, i.e. checks TCO_TMR_HLT. If the bit is set
+ * the handler goes into an infinite loop, apparently to allow the
+ * second timeout and reboot. Otherwise it simply clears TIMEOUT bit
+ * in TCO1_STS and that's it.
+ * So the logic seems to be reversed, because it is hard to see how
+ * TIMEOUT can get set to 1 and SMI generated when TCO_TMR_HLT is set
+ * (other than a transitional effect).
+ *
+ * The only fix found to get the motherboard(s) to reboot is to put
+ * the glb_smi_en bit to 0. This is a dirty hack that bypasses the
+ * broken code by disabling Global SMI.
+ *
+ * WARNING: globally disabling SMI could possibly lead to dramatic
+ * problems, especially on laptops! I.e. various ACPI things where
+ * SMI is used for communication between OS and firmware.
+ *
+ * Don't use this fix if you don't need to!!!
+ */
+
+static void broken_bios_start(unsigned long acpibase)
+{
+ unsigned long val32;
+
+ val32 = inl(SMI_EN);
+ /* Bit 13: TCO_EN -> 0 = Disables TCO logic generating an SMI#
+ Bit 0: GBL_SMI_EN -> 0 = No SMI# will be generated by ICH. */
+ val32 &= 0xffffdffe;
+ outl(val32, SMI_EN);
+}
+
+static void broken_bios_stop(unsigned long acpibase)
+{
+ unsigned long val32;
+
+ val32 = inl(SMI_EN);
+ /* Bit 13: TCO_EN -> 1 = Enables TCO logic generating an SMI#
+ Bit 0: GBL_SMI_EN -> 1 = Turn global SMI on again. */
+ val32 |= 0x00002001;
+ outl(val32, SMI_EN);
+}
+
+/*
* Generic Support Functions
*/
void iTCO_vendor_pre_start(unsigned long acpibase,
unsigned int heartbeat)
{
- if (vendorsupport == SUPERMICRO_OLD_BOARD)
+ switch (vendorsupport) {
+ case SUPERMICRO_OLD_BOARD:
supermicro_old_pre_start(acpibase);
- else if (vendorsupport == SUPERMICRO_NEW_BOARD)
+ break;
+ case SUPERMICRO_NEW_BOARD:
supermicro_new_pre_start(heartbeat);
+ break;
+ case BROKEN_BIOS:
+ broken_bios_start(acpibase);
+ break;
+ }
}
EXPORT_SYMBOL(iTCO_vendor_pre_start);
void iTCO_vendor_pre_stop(unsigned long acpibase)
{
- if (vendorsupport == SUPERMICRO_OLD_BOARD)
+ switch (vendorsupport) {
+ case SUPERMICRO_OLD_BOARD:
supermicro_old_pre_stop(acpibase);
- else if (vendorsupport == SUPERMICRO_NEW_BOARD)
+ break;
+ case SUPERMICRO_NEW_BOARD:
supermicro_new_pre_stop();
+ break;
+ case BROKEN_BIOS:
+ broken_bios_stop(acpibase);
+ break;
+ }
}
EXPORT_SYMBOL(iTCO_vendor_pre_stop);
diff --git a/drivers/watchdog/iTCO_wdt.c b/drivers/watchdog/iTCO_wdt.c
index 648250b..6a51edd 100644
--- a/drivers/watchdog/iTCO_wdt.c
+++ b/drivers/watchdog/iTCO_wdt.c
@@ -236,19 +236,19 @@ MODULE_DEVICE_TABLE(pci, iTCO_wdt_pci_tbl);
/* Address definitions for the TCO */
/* TCO base address */
-#define TCOBASE iTCO_wdt_private.ACPIBASE + 0x60
+#define TCOBASE (iTCO_wdt_private.ACPIBASE + 0x60)
/* SMI Control and Enable Register */
-#define SMI_EN iTCO_wdt_private.ACPIBASE + 0x30
-
-#define TCO_RLD TCOBASE + 0x00 /* TCO Timer Reload and Curr. Value */
-#define TCOv1_TMR TCOBASE + 0x01 /* TCOv1 Timer Initial Value */
-#define TCO_DAT_IN TCOBASE + 0x02 /* TCO Data In Register */
-#define TCO_DAT_OUT TCOBASE + 0x03 /* TCO Data Out Register */
-#define TCO1_STS TCOBASE + 0x04 /* TCO1 Status Register */
-#define TCO2_STS TCOBASE + 0x06 /* TCO2 Status Register */
-#define TCO1_CNT TCOBASE + 0x08 /* TCO1 Control Register */
-#define TCO2_CNT TCOBASE + 0x0a /* TCO2 Control Register */
-#define TCOv2_TMR TCOBASE + 0x12 /* TCOv2 Timer Initial Value */
+#define SMI_EN (iTCO_wdt_private.ACPIBASE + 0x30)
+
+#define TCO_RLD (TCOBASE + 0x00) /* TCO Timer Reload and Curr. Value */
+#define TCOv1_TMR (TCOBASE + 0x01) /* TCOv1 Timer Initial Value */
+#define TCO_DAT_IN (TCOBASE + 0x02) /* TCO Data In Register */
+#define TCO_DAT_OUT (TCOBASE + 0x03) /* TCO Data Out Register */
+#define TCO1_STS (TCOBASE + 0x04) /* TCO1 Status Register */
+#define TCO2_STS (TCOBASE + 0x06) /* TCO2 Status Register */
+#define TCO1_CNT (TCOBASE + 0x08) /* TCO1 Control Register */
+#define TCO2_CNT (TCOBASE + 0x0a) /* TCO2 Control Register */
+#define TCOv2_TMR (TCOBASE + 0x12) /* TCOv2 Timer Initial Value */
/* internal variables */
static unsigned long is_active;
@@ -666,6 +666,11 @@ static int __devinit iTCO_wdt_init(struct pci_dev *pdev,
GCS = RCBA + ICH6_GCS(0x3410). */
if (iTCO_wdt_private.iTCO_version == 2) {
pci_read_config_dword(pdev, 0xf0, &base_address);
+ if ((base_address & 1) == 0) {
+ printk(KERN_ERR PFX "RCBA is disabled by harddware\n");
+ ret = -ENODEV;
+ goto out;
+ }
RCBA = base_address & 0xffffc000;
iTCO_wdt_private.gcs = ioremap((RCBA + 0x3410), 4);
}
@@ -675,7 +680,7 @@ static int __devinit iTCO_wdt_init(struct pci_dev *pdev,
printk(KERN_ERR PFX "failed to reset NO_REBOOT flag, "
"reboot disabled by hardware\n");
ret = -ENODEV; /* Cannot reset NO_REBOOT bit */
- goto out;
+ goto out_unmap;
}
/* Set the NO_REBOOT bit to prevent later reboots, just for sure */
@@ -686,7 +691,7 @@ static int __devinit iTCO_wdt_init(struct pci_dev *pdev,
printk(KERN_ERR PFX
"I/O address 0x%04lx already in use\n", SMI_EN);
ret = -EIO;
- goto out;
+ goto out_unmap;
}
/* Bit 13: TCO_EN -> 0 = Disables TCO logic generating an SMI# */
val32 = inl(SMI_EN);
@@ -742,9 +747,10 @@ unreg_region:
release_region(TCOBASE, 0x20);
unreg_smi_en:
release_region(SMI_EN, 4);
-out:
+out_unmap:
if (iTCO_wdt_private.iTCO_version == 2)
iounmap(iTCO_wdt_private.gcs);
+out:
pci_dev_put(iTCO_wdt_private.pdev);
iTCO_wdt_private.ACPIBASE = 0;
return ret;
diff --git a/drivers/watchdog/indydog.c b/drivers/watchdog/indydog.c
index 0f761db..bea8a12 100644
--- a/drivers/watchdog/indydog.c
+++ b/drivers/watchdog/indydog.c
@@ -83,7 +83,6 @@ static int indydog_open(struct inode *inode, struct file *file)
indydog_start();
indydog_ping();
- indydog_alive = 1;
printk(KERN_INFO "Started watchdog timer.\n");
return nonseekable_open(inode, file);
@@ -113,8 +112,7 @@ static long indydog_ioctl(struct file *file, unsigned int cmd,
{
int options, retval = -EINVAL;
static struct watchdog_info ident = {
- .options = WDIOF_KEEPALIVEPING |
- WDIOF_MAGICCLOSE,
+ .options = WDIOF_KEEPALIVEPING,
.firmware_version = 0,
.identity = "Hardware Watchdog for SGI IP22",
};
diff --git a/drivers/watchdog/it8712f_wdt.c b/drivers/watchdog/it8712f_wdt.c
index 2270ee0..daed48d 100644
--- a/drivers/watchdog/it8712f_wdt.c
+++ b/drivers/watchdog/it8712f_wdt.c
@@ -239,7 +239,8 @@ static long it8712f_wdt_ioctl(struct file *file, unsigned int cmd,
static struct watchdog_info ident = {
.identity = "IT8712F Watchdog",
.firmware_version = 1,
- .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING,
+ .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING |
+ WDIOF_MAGICCLOSE,
};
int value;
diff --git a/drivers/watchdog/ks8695_wdt.c b/drivers/watchdog/ks8695_wdt.c
index ae38321..00b03eb 100644
--- a/drivers/watchdog/ks8695_wdt.c
+++ b/drivers/watchdog/ks8695_wdt.c
@@ -293,8 +293,8 @@ static int __init ks8695_wdt_init(void)
if not reset to the default */
if (ks8695_wdt_settimeout(wdt_time)) {
ks8695_wdt_settimeout(WDT_DEFAULT_TIME);
- pr_info("ks8695_wdt: wdt_time value must be 1 <= wdt_time <= %i, using %d\n",
- wdt_time, WDT_MAX_TIME);
+ pr_info("ks8695_wdt: wdt_time value must be 1 <= wdt_time <= %i"
+ ", using %d\n", wdt_time, WDT_MAX_TIME);
}
return platform_driver_register(&ks8695wdt_driver);
}
diff --git a/drivers/watchdog/machzwd.c b/drivers/watchdog/machzwd.c
index 2dfc275..b6b3f59 100644
--- a/drivers/watchdog/machzwd.c
+++ b/drivers/watchdog/machzwd.c
@@ -118,7 +118,8 @@ static struct watchdog_info zf_info = {
*/
static int action;
module_param(action, int, 0);
-MODULE_PARM_DESC(action, "after watchdog resets, generate: 0 = RESET(*) 1 = SMI 2 = NMI 3 = SCI");
+MODULE_PARM_DESC(action, "after watchdog resets, generate: "
+ "0 = RESET(*) 1 = SMI 2 = NMI 3 = SCI");
static void zf_ping(unsigned long data);
@@ -142,7 +143,8 @@ static unsigned long next_heartbeat;
#ifndef ZF_DEBUG
# define dprintk(format, args...)
#else
-# define dprintk(format, args...) printk(KERN_DEBUG PFX ":%s:%d: " format, __func__, __LINE__ , ## args)
+# define dprintk(format, args...) printk(KERN_DEBUG PFX
+ ":%s:%d: " format, __func__, __LINE__ , ## args)
#endif
@@ -340,7 +342,8 @@ static int zf_close(struct inode *inode, struct file *file)
zf_timer_off();
else {
del_timer(&zf_timer);
- printk(KERN_ERR PFX ": device file closed unexpectedly. Will not stop the WDT!\n");
+ printk(KERN_ERR PFX ": device file closed unexpectedly. "
+ "Will not stop the WDT!\n");
}
clear_bit(0, &zf_is_open);
zf_expect_close = 0;
diff --git a/drivers/watchdog/mpcore_wdt.c b/drivers/watchdog/mpcore_wdt.c
index 1512ab8..83fa34b 100644
--- a/drivers/watchdog/mpcore_wdt.c
+++ b/drivers/watchdog/mpcore_wdt.c
@@ -61,7 +61,9 @@ MODULE_PARM_DESC(nowayout,
#define ONLY_TESTING 0
static int mpcore_noboot = ONLY_TESTING;
module_param(mpcore_noboot, int, 0);
-MODULE_PARM_DESC(mpcore_noboot, "MPcore watchdog action, set to 1 to ignore reboots, 0 to reboot (default=" __MODULE_STRING(ONLY_TESTING) ")");
+MODULE_PARM_DESC(mpcore_noboot, "MPcore watchdog action, "
+ "set to 1 to ignore reboots, 0 to reboot (default="
+ __MODULE_STRING(ONLY_TESTING) ")");
/*
* This is the interrupt handler. Note that we only use this
@@ -416,7 +418,8 @@ static struct platform_driver mpcore_wdt_driver = {
},
};
-static char banner[] __initdata = KERN_INFO "MPcore Watchdog Timer: 0.1. mpcore_noboot=%d mpcore_margin=%d sec (nowayout= %d)\n";
+static char banner[] __initdata = KERN_INFO "MPcore Watchdog Timer: 0.1. "
+ "mpcore_noboot=%d mpcore_margin=%d sec (nowayout= %d)\n";
static int __init mpcore_wdt_init(void)
{
diff --git a/drivers/watchdog/mtx-1_wdt.c b/drivers/watchdog/mtx-1_wdt.c
index 539b6f6..08e8a6a 100644
--- a/drivers/watchdog/mtx-1_wdt.c
+++ b/drivers/watchdog/mtx-1_wdt.c
@@ -206,7 +206,7 @@ static struct miscdevice mtx1_wdt_misc = {
};
-static int mtx1_wdt_probe(struct platform_device *pdev)
+static int __devinit mtx1_wdt_probe(struct platform_device *pdev)
{
int ret;
@@ -229,7 +229,7 @@ static int mtx1_wdt_probe(struct platform_device *pdev)
return 0;
}
-static int mtx1_wdt_remove(struct platform_device *pdev)
+static int __devexit mtx1_wdt_remove(struct platform_device *pdev)
{
/* FIXME: do we need to lock this test ? */
if (mtx1_wdt_device.queue) {
@@ -242,7 +242,7 @@ static int mtx1_wdt_remove(struct platform_device *pdev)
static struct platform_driver mtx1_wdt = {
.probe = mtx1_wdt_probe,
- .remove = mtx1_wdt_remove,
+ .remove = __devexit_p(mtx1_wdt_remove),
.driver.name = "mtx1-wdt",
.driver.owner = THIS_MODULE,
};
diff --git a/drivers/watchdog/pnx4008_wdt.c b/drivers/watchdog/pnx4008_wdt.c
index 6413519..f24d041 100644
--- a/drivers/watchdog/pnx4008_wdt.c
+++ b/drivers/watchdog/pnx4008_wdt.c
@@ -246,7 +246,7 @@ static struct miscdevice pnx4008_wdt_miscdev = {
.fops = &pnx4008_wdt_fops,
};
-static int pnx4008_wdt_probe(struct platform_device *pdev)
+static int __devinit pnx4008_wdt_probe(struct platform_device *pdev)
{
int ret = 0, size;
struct resource *res;
@@ -299,7 +299,7 @@ out:
return ret;
}
-static int pnx4008_wdt_remove(struct platform_device *pdev)
+static int __devexit pnx4008_wdt_remove(struct platform_device *pdev)
{
misc_deregister(&pnx4008_wdt_miscdev);
if (wdt_clk) {
@@ -321,7 +321,7 @@ static struct platform_driver platform_wdt_driver = {
.owner = THIS_MODULE,
},
.probe = pnx4008_wdt_probe,
- .remove = pnx4008_wdt_remove,
+ .remove = __devexit_p(pnx4008_wdt_remove),
};
static int __init pnx4008_wdt_init(void)
diff --git a/drivers/watchdog/rdc321x_wdt.c b/drivers/watchdog/rdc321x_wdt.c
index 36e221b..4976bfd 100644
--- a/drivers/watchdog/rdc321x_wdt.c
+++ b/drivers/watchdog/rdc321x_wdt.c
@@ -245,7 +245,7 @@ static int __devinit rdc321x_wdt_probe(struct platform_device *pdev)
return 0;
}
-static int rdc321x_wdt_remove(struct platform_device *pdev)
+static int __devexit rdc321x_wdt_remove(struct platform_device *pdev)
{
if (rdc321x_wdt_device.queue) {
rdc321x_wdt_device.queue = 0;
@@ -259,7 +259,7 @@ static int rdc321x_wdt_remove(struct platform_device *pdev)
static struct platform_driver rdc321x_wdt_driver = {
.probe = rdc321x_wdt_probe,
- .remove = rdc321x_wdt_remove,
+ .remove = __devexit_p(rdc321x_wdt_remove),
.driver = {
.owner = THIS_MODULE,
.name = "rdc321x-wdt",
diff --git a/drivers/watchdog/rm9k_wdt.c b/drivers/watchdog/rm9k_wdt.c
index cce1982..2e44426 100644
--- a/drivers/watchdog/rm9k_wdt.c
+++ b/drivers/watchdog/rm9k_wdt.c
@@ -345,8 +345,8 @@ static const struct resource *wdt_gpi_get_resource(struct platform_device *pdv,
return platform_get_resource_byname(pdv, type, buf);
}
-/* No hotplugging on the platform bus - use __init */
-static int __init wdt_gpi_probe(struct platform_device *pdv)
+/* No hotplugging on the platform bus - use __devinit */
+static int __devinit wdt_gpi_probe(struct platform_device *pdv)
{
int res;
const struct resource
@@ -373,7 +373,7 @@ static int __init wdt_gpi_probe(struct platform_device *pdv)
return res;
}
-static int __exit wdt_gpi_remove(struct platform_device *dev)
+static int __devexit wdt_gpi_remove(struct platform_device *dev)
{
int res;
diff --git a/drivers/watchdog/s3c2410_wdt.c b/drivers/watchdog/s3c2410_wdt.c
index e31925e..b57ac6b 100644
--- a/drivers/watchdog/s3c2410_wdt.c
+++ b/drivers/watchdog/s3c2410_wdt.c
@@ -68,15 +68,10 @@ MODULE_PARM_DESC(tmr_atboot,
__MODULE_STRING(CONFIG_S3C2410_WATCHDOG_ATBOOT));
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
-MODULE_PARM_DESC(soft_noboot, "Watchdog action, set to 1 to ignore reboots, 0 to reboot (default depends on ONLY_TESTING)");
+MODULE_PARM_DESC(soft_noboot, "Watchdog action, set to 1 to ignore reboots, "
+ "0 to reboot (default depends on ONLY_TESTING)");
MODULE_PARM_DESC(debug, "Watchdog debug, set to >1 for debug, (default 0)");
-
-typedef enum close_state {
- CLOSE_STATE_NOT,
- CLOSE_STATE_ALLOW = 0x4021
-} close_state_t;
-
static unsigned long open_lock;
static struct device *wdt_dev; /* platform device attached to */
static struct resource *wdt_mem;
@@ -84,7 +79,7 @@ static struct resource *wdt_irq;
static struct clk *wdt_clock;
static void __iomem *wdt_base;
static unsigned int wdt_count;
-static close_state_t allow_close;
+static char expect_close;
static DEFINE_SPINLOCK(wdt_lock);
/* watchdog control routines */
@@ -211,7 +206,7 @@ static int s3c2410wdt_open(struct inode *inode, struct file *file)
if (nowayout)
__module_get(THIS_MODULE);
- allow_close = CLOSE_STATE_NOT;
+ expect_close = 0;
/* start the timer */
s3c2410wdt_start();
@@ -225,13 +220,13 @@ static int s3c2410wdt_release(struct inode *inode, struct file *file)
* Lock it in if it's a module and we set nowayout
*/
- if (allow_close == CLOSE_STATE_ALLOW)
+ if (expect_close == 42)
s3c2410wdt_stop();
else {
dev_err(wdt_dev, "Unexpected close, not stopping watchdog\n");
s3c2410wdt_keepalive();
}
- allow_close = CLOSE_STATE_NOT;
+ expect_close = 0;
clear_bit(0, &open_lock);
return 0;
}
@@ -247,7 +242,7 @@ static ssize_t s3c2410wdt_write(struct file *file, const char __user *data,
size_t i;
/* In case it was set long ago */
- allow_close = CLOSE_STATE_NOT;
+ expect_close = 0;
for (i = 0; i != len; i++) {
char c;
@@ -255,7 +250,7 @@ static ssize_t s3c2410wdt_write(struct file *file, const char __user *data,
if (get_user(c, data + i))
return -EFAULT;
if (c == 'V')
- allow_close = CLOSE_STATE_ALLOW;
+ expect_close = 42;
}
}
s3c2410wdt_keepalive();
@@ -263,7 +258,7 @@ static ssize_t s3c2410wdt_write(struct file *file, const char __user *data,
return len;
}
-#define OPTIONS WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE
+#define OPTIONS (WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE)
static const struct watchdog_info s3c2410_wdt_ident = {
.options = OPTIONS,
@@ -331,7 +326,7 @@ static irqreturn_t s3c2410wdt_irq(int irqno, void *param)
}
/* device interface */
-static int s3c2410wdt_probe(struct platform_device *pdev)
+static int __devinit s3c2410wdt_probe(struct platform_device *pdev)
{
struct resource *res;
struct device *dev;
@@ -404,7 +399,8 @@ static int s3c2410wdt_probe(struct platform_device *pdev)
"tmr_margin value out of range, default %d used\n",
CONFIG_S3C2410_WATCHDOG_DEFAULT_TIME);
else
- dev_info(dev, "default timer value is out of range, cannot start\n");
+ dev_info(dev, "default timer value is out of range, "
+ "cannot start\n");
}
ret = misc_register(&s3c2410wdt_miscdev);
@@ -453,7 +449,7 @@ static int s3c2410wdt_probe(struct platform_device *pdev)
return ret;
}
-static int s3c2410wdt_remove(struct platform_device *dev)
+static int __devexit s3c2410wdt_remove(struct platform_device *dev)
{
release_resource(wdt_mem);
kfree(wdt_mem);
@@ -515,7 +511,7 @@ static int s3c2410wdt_resume(struct platform_device *dev)
static struct platform_driver s3c2410wdt_driver = {
.probe = s3c2410wdt_probe,
- .remove = s3c2410wdt_remove,
+ .remove = __devexit_p(s3c2410wdt_remove),
.shutdown = s3c2410wdt_shutdown,
.suspend = s3c2410wdt_suspend,
.resume = s3c2410wdt_resume,
diff --git a/drivers/watchdog/sb_wdog.c b/drivers/watchdog/sb_wdog.c
index 38f5831..9748eed 100644
--- a/drivers/watchdog/sb_wdog.c
+++ b/drivers/watchdog/sb_wdog.c
@@ -93,7 +93,7 @@ static int expect_close;
static const struct watchdog_info ident = {
.options = WDIOF_CARDRESET | WDIOF_SETTIMEOUT |
- WDIOF_KEEPALIVEPING,
+ WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE,
.identity = "SiByte Watchdog",
};
@@ -269,9 +269,10 @@ irqreturn_t sbwdog_interrupt(int irq, void *addr)
* if it's the second watchdog timer, it's for those users
*/
if (wd_cfg_reg == user_dog)
- printk(KERN_CRIT
- "%s in danger of initiating system reset in %ld.%01ld seconds\n",
- ident.identity, wd_init / 1000000, (wd_init / 100000) % 10);
+ printk(KERN_CRIT "%s in danger of initiating system reset "
+ "in %ld.%01ld seconds\n",
+ ident.identity,
+ wd_init / 1000000, (wd_init / 100000) % 10);
else
cfg |= 1;
diff --git a/drivers/watchdog/sbc60xxwdt.c b/drivers/watchdog/sbc60xxwdt.c
index d1c390c..626d0e8 100644
--- a/drivers/watchdog/sbc60xxwdt.c
+++ b/drivers/watchdog/sbc60xxwdt.c
@@ -372,8 +372,9 @@ static int __init sbc60xxwdt_init(void)
wdt_miscdev.minor, rc);
goto err_out_reboot;
}
- printk(KERN_INFO PFX "WDT driver for 60XX single board computer initialised. timeout=%d sec (nowayout=%d)\n",
- timeout, nowayout);
+ printk(KERN_INFO PFX
+ "WDT driver for 60XX single board computer initialised. "
+ "timeout=%d sec (nowayout=%d)\n", timeout, nowayout);
return 0;
diff --git a/drivers/watchdog/sbc8360.c b/drivers/watchdog/sbc8360.c
index b6e6799..68e2e2d 100644
--- a/drivers/watchdog/sbc8360.c
+++ b/drivers/watchdog/sbc8360.c
@@ -280,8 +280,8 @@ static int sbc8360_close(struct inode *inode, struct file *file)
if (expect_close == 42)
sbc8360_stop();
else
- printk(KERN_CRIT PFX
- "SBC8360 device closed unexpectedly. SBC8360 will not stop!\n");
+ printk(KERN_CRIT PFX "SBC8360 device closed unexpectedly. "
+ "SBC8360 will not stop!\n");
clear_bit(0, &sbc8360_is_open);
expect_close = 0;
diff --git a/drivers/watchdog/sbc_epx_c3.c b/drivers/watchdog/sbc_epx_c3.c
index e467ddc..28f1214 100644
--- a/drivers/watchdog/sbc_epx_c3.c
+++ b/drivers/watchdog/sbc_epx_c3.c
@@ -107,8 +107,7 @@ static long epx_c3_ioctl(struct file *file, unsigned int cmd,
int options, retval = -EINVAL;
int __user *argp = (void __user *)arg;
static const struct watchdog_info ident = {
- .options = WDIOF_KEEPALIVEPING |
- WDIOF_MAGICCLOSE,
+ .options = WDIOF_KEEPALIVEPING,
.firmware_version = 0,
.identity = "Winsystems EPX-C3 H/W Watchdog",
};
@@ -174,8 +173,8 @@ static struct notifier_block epx_c3_notifier = {
.notifier_call = epx_c3_notify_sys,
};
-static const char banner[] __initdata =
- KERN_INFO PFX "Hardware Watchdog Timer for Winsystems EPX-C3 SBC: 0.1\n";
+static const char banner[] __initdata = KERN_INFO PFX
+ "Hardware Watchdog Timer for Winsystems EPX-C3 SBC: 0.1\n";
static int __init watchdog_init(void)
{
@@ -219,6 +218,9 @@ module_init(watchdog_init);
module_exit(watchdog_exit);
MODULE_AUTHOR("Calin A. Culianu <calin@...ar.org>");
-MODULE_DESCRIPTION("Hardware Watchdog Device for Winsystems EPX-C3 SBC. Note that there is no way to probe for this device -- so only use it if you are *sure* you are runnning on this specific SBC system from Winsystems! It writes to IO ports 0x1ee and 0x1ef!");
+MODULE_DESCRIPTION("Hardware Watchdog Device for Winsystems EPX-C3 SBC. "
+ "Note that there is no way to probe for this device -- "
+ "so only use it if you are *sure* you are runnning on this specific "
+ "SBC system from Winsystems! It writes to IO ports 0x1ee and 0x1ef!");
MODULE_LICENSE("GPL");
MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/scx200_wdt.c b/drivers/watchdog/scx200_wdt.c
index 9e19a10..e67b76c 100644
--- a/drivers/watchdog/scx200_wdt.c
+++ b/drivers/watchdog/scx200_wdt.c
@@ -108,7 +108,9 @@ static int scx200_wdt_open(struct inode *inode, struct file *file)
static int scx200_wdt_release(struct inode *inode, struct file *file)
{
if (expect_close != 42)
- printk(KERN_WARNING NAME ": watchdog device closed unexpectedly, will not disable the watchdog timer\n");
+ printk(KERN_WARNING NAME
+ ": watchdog device closed unexpectedly, "
+ "will not disable the watchdog timer\n");
else if (!nowayout)
scx200_wdt_disable();
expect_close = 0;
@@ -163,7 +165,8 @@ static long scx200_wdt_ioctl(struct file *file, unsigned int cmd,
static const struct watchdog_info ident = {
.identity = "NatSemi SCx200 Watchdog",
.firmware_version = 1,
- .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING,
+ .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING |
+ WDIOF_MAGICCLOSE,
};
int new_margin;
diff --git a/drivers/watchdog/shwdt.c b/drivers/watchdog/shwdt.c
index cdc7138..a03f84e 100644
--- a/drivers/watchdog/shwdt.c
+++ b/drivers/watchdog/shwdt.c
@@ -494,7 +494,9 @@ MODULE_LICENSE("GPL");
MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
module_param(clock_division_ratio, int, 0);
-MODULE_PARM_DESC(clock_division_ratio, "Clock division ratio. Valid ranges are from 0x5 (1.31ms) to 0x7 (5.25ms). (default=" __MODULE_STRING(clock_division_ratio) ")");
+MODULE_PARM_DESC(clock_division_ratio,
+ "Clock division ratio. Valid ranges are from 0x5 (1.31ms) "
+ "to 0x7 (5.25ms). (default=" __MODULE_STRING(clock_division_ratio) ")");
module_param(heartbeat, int, 0);
MODULE_PARM_DESC(heartbeat,
diff --git a/drivers/watchdog/softdog.c b/drivers/watchdog/softdog.c
index ebcc9ce..833f49f 100644
--- a/drivers/watchdog/softdog.c
+++ b/drivers/watchdog/softdog.c
@@ -71,7 +71,9 @@ static int soft_noboot = 0;
#endif /* ONLY_TESTING */
module_param(soft_noboot, int, 0);
-MODULE_PARM_DESC(soft_noboot, "Softdog action, set to 1 to ignore reboots, 0 to reboot (default depends on ONLY_TESTING)");
+MODULE_PARM_DESC(soft_noboot,
+ "Softdog action, set to 1 to ignore reboots, 0 to reboot "
+ "(default depends on ONLY_TESTING)");
/*
* Our timer
@@ -264,7 +266,8 @@ static struct notifier_block softdog_notifier = {
.notifier_call = softdog_notify_sys,
};
-static char banner[] __initdata = KERN_INFO "Software Watchdog Timer: 0.07 initialized. soft_noboot=%d soft_margin=%d sec (nowayout= %d)\n";
+static char banner[] __initdata = KERN_INFO "Software Watchdog Timer: 0.07 "
+ "initialized. soft_noboot=%d soft_margin=%d sec (nowayout= %d)\n";
static int __init watchdog_init(void)
{
diff --git a/drivers/watchdog/w83697hf_wdt.c b/drivers/watchdog/w83697hf_wdt.c
index a9c7f35..af08972 100644
--- a/drivers/watchdog/w83697hf_wdt.c
+++ b/drivers/watchdog/w83697hf_wdt.c
@@ -413,7 +413,8 @@ static int __init wdt_init(void)
w83697hf_init();
if (early_disable) {
if (wdt_running())
- printk(KERN_WARNING PFX "Stopping previously enabled watchdog until userland kicks in\n");
+ printk(KERN_WARNING PFX "Stopping previously enabled "
+ "watchdog until userland kicks in\n");
wdt_disable();
}
diff --git a/drivers/watchdog/wdrtas.c b/drivers/watchdog/wdrtas.c
index a38fa49..a4fe7a3 100644
--- a/drivers/watchdog/wdrtas.c
+++ b/drivers/watchdog/wdrtas.c
@@ -49,12 +49,7 @@ MODULE_LICENSE("GPL");
MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
MODULE_ALIAS_MISCDEV(TEMP_MINOR);
-#ifdef CONFIG_WATCHDOG_NOWAYOUT
-static int wdrtas_nowayout = 1;
-#else
-static int wdrtas_nowayout = 0;
-#endif
-
+static int wdrtas_nowayout = WATCHDOG_NOWAYOUT;
static atomic_t wdrtas_miscdev_open = ATOMIC_INIT(0);
static char wdrtas_expect_close;
--
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