diff options
| author | dann frazier <dannf@hp.com> | 2010-07-27 17:51:02 -0600 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@iguana.be> | 2010-08-13 20:54:53 +0000 |
| commit | 86ded1f35df32ad795cfc8cc1bdaeffbcaec0d5f (patch) | |
| tree | 7b8d9f1b39b1b53d6d85bdee8518ced02c033f3c /drivers/watchdog/hpwdt.c | |
| parent | 2ec7ed67dc1e4e57d891233f5014d25f43f941ff (diff) | |
| download | linux-86ded1f35df32ad795cfc8cc1bdaeffbcaec0d5f.tar.bz2 | |
watchdog: hpwdt (12/12): Make NMI decoding a compile-time option
hpwdt is quite functional without the NMI decoding feature.
This change lets users disable the NMI portion at compile-time
via the new HPWDT_NMI_DECODING config option.
Signed-off-by: dann frazier <dannf@hp.com>
Acked-by: Thomas Mingarelli <Thomas.Mingarelli@hp.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Diffstat (limited to 'drivers/watchdog/hpwdt.c')
| -rw-r--r-- | drivers/watchdog/hpwdt.c | 27 |
1 files changed, 26 insertions, 1 deletions
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); |