diff options
| -rw-r--r-- | drivers/watchdog/Kconfig | 17 | ||||
| -rw-r--r-- | drivers/watchdog/hpwdt.c | 27 |
2 files changed, 37 insertions, 7 deletions
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig index cee25e401440..b036677df8c4 100644 --- a/drivers/watchdog/Kconfig +++ b/drivers/watchdog/Kconfig @@ -578,12 +578,17 @@ config HP_WATCHDOG depends on X86 help A software monitoring watchdog and NMI sourcing driver. This driver - will detect lockups and provide a stack trace. Also, when an NMI - occurs this driver will make the necessary BIOS calls to log - the cause of the NMI. This is a driver that will only load on a - HP ProLiant system with a minimum of iLO2 support. - To compile this driver as a module, choose M here: the - module will be called hpwdt. + will detect lockups and provide a stack trace. This is a driver that + will only load on a HP ProLiant system with a minimum of iLO2 support. + To compile this driver as a module, choose M here: the module will be + called hpwdt. + +config HPWDT_NMI_DECODING + bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer" + depends on HP_WATCHDOG + help + When an NMI occurs this feature will make the necessary BIOS calls to + log the cause of the NMI. config SC1200_WDT tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog" diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c index 850f17877e9c..3d77116e4634 100644 --- a/drivers/watchdog/hpwdt.c +++ b/drivers/watchdog/hpwdt.c @@ -27,14 +27,16 @@ #include <linux/types.h> #include <linux/uaccess.h> #include <linux/watchdog.h> +#ifdef CONFIG_HPWDT_NMI_DECODING #include <linux/dmi.h> #include <linux/spinlock.h> #include <linux/nmi.h> #include <linux/kdebug.h> #include <linux/notifier.h> #include <asm/cacheflush.h> +#endif /* CONFIG_HPWDT_NMI_DECODING */ -#define HPWDT_VERSION "1.1.1" +#define HPWDT_VERSION "1.2.0" #define SECS_TO_TICKS(secs) ((secs) * 1000 / 128) #define TICKS_TO_SECS(ticks) ((ticks) * 128 / 1000) #define HPWDT_MAX_TIMER TICKS_TO_SECS(65535) @@ -57,6 +59,7 @@ static struct pci_device_id hpwdt_devices[] = { }; MODULE_DEVICE_TABLE(pci, hpwdt_devices); +#ifdef CONFIG_HPWDT_NMI_DECODING #define PCI_BIOS32_SD_VALUE 0x5F32335F /* "_32_" */ #define CRU_BIOS_SIGNATURE_VALUE 0x55524324 #define PCI_BIOS32_PARAGRAPH_LEN 16 @@ -407,6 +410,7 @@ static int __devinit detect_cru_service(void) } /* ------------------------------------------------------------------------- */ #endif /* CONFIG_X86_64 */ +#endif /* CONFIG_HPWDT_NMI_DECODING */ /* * Watchdog operations @@ -455,6 +459,7 @@ static int hpwdt_time_left(void) return TICKS_TO_SECS(ioread16(hpwdt_timer_reg)); } +#ifdef CONFIG_HPWDT_NMI_DECODING /* * NMI Handler */ @@ -487,6 +492,7 @@ static int hpwdt_pretimeout(struct notifier_block *nb, unsigned long ulReason, out: return NOTIFY_OK; } +#endif /* CONFIG_HPWDT_NMI_DECODING */ /* * /dev/watchdog handling @@ -624,15 +630,18 @@ static struct miscdevice hpwdt_miscdev = { .fops = &hpwdt_fops, }; +#ifdef CONFIG_HPWDT_NMI_DECODING static struct notifier_block die_notifier = { .notifier_call = hpwdt_pretimeout, .priority = 0, }; +#endif /* CONFIG_HPWDT_NMI_DECODING */ /* * Init & Exit */ +#ifdef CONFIG_HPWDT_NMI_DECODING #ifdef ARCH_HAS_NMI_WATCHDOG static void __devinit hpwdt_check_nmi_decoding(struct pci_dev *dev) { @@ -712,6 +721,20 @@ static void __devexit hpwdt_exit_nmi_decoding(void) if (cru_rom_addr) iounmap(cru_rom_addr); } +#else /* !CONFIG_HPWDT_NMI_DECODING */ +static void __devinit hpwdt_check_nmi_decoding(struct pci_dev *dev) +{ +} + +static int __devinit hpwdt_init_nmi_decoding(struct pci_dev *dev) +{ + return 0; +} + +static void __devexit hpwdt_exit_nmi_decoding(void) +{ +} +#endif /* CONFIG_HPWDT_NMI_DECODING */ static int __devinit hpwdt_init_one(struct pci_dev *dev, const struct pci_device_id *ent) @@ -823,12 +846,14 @@ module_param(nowayout, int, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); +#ifdef CONFIG_HPWDT_NMI_DECODING module_param(allow_kdump, int, 0); MODULE_PARM_DESC(allow_kdump, "Start a kernel dump after NMI occurs"); module_param(priority, int, 0); MODULE_PARM_DESC(priority, "The hpwdt driver handles NMIs first or last" " (default = 0/Last)\n"); +#endif /* !CONFIG_HPWDT_NMI_DECODING */ module_init(hpwdt_init); module_exit(hpwdt_cleanup); |