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-rw-r--r--drivers/watchdog/hpwdt.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c
index 11796b9b864e..de7e4f497222 100644
--- a/drivers/watchdog/hpwdt.c
+++ b/drivers/watchdog/hpwdt.c
@@ -39,7 +39,7 @@
#endif /* CONFIG_HPWDT_NMI_DECODING */
#include <asm/nmi.h>
-#define HPWDT_VERSION "1.3.1"
+#define HPWDT_VERSION "1.3.2"
#define SECS_TO_TICKS(secs) ((secs) * 1000 / 128)
#define TICKS_TO_SECS(ticks) ((ticks) * 128 / 1000)
#define HPWDT_MAX_TIMER TICKS_TO_SECS(65535)
@@ -148,6 +148,7 @@ struct cmn_registers {
static unsigned int hpwdt_nmi_decoding;
static unsigned int allow_kdump = 1;
static unsigned int is_icru;
+static unsigned int is_uefi;
static DEFINE_SPINLOCK(rom_lock);
static void *cru_rom_addr;
static struct cmn_registers cmn_regs;
@@ -484,7 +485,7 @@ static int hpwdt_pretimeout(unsigned int ulReason, struct pt_regs *regs)
goto out;
spin_lock_irqsave(&rom_lock, rom_pl);
- if (!die_nmi_called && !is_icru)
+ if (!die_nmi_called && !is_icru && !is_uefi)
asminline_call(&cmn_regs, cru_rom_addr);
die_nmi_called = 1;
spin_unlock_irqrestore(&rom_lock, rom_pl);
@@ -492,7 +493,7 @@ static int hpwdt_pretimeout(unsigned int ulReason, struct pt_regs *regs)
if (allow_kdump)
hpwdt_stop();
- if (!is_icru) {
+ if (!is_icru && !is_uefi) {
if (cmn_regs.u1.ral == 0) {
panic("An NMI occurred, "
"but unable to determine source.\n");
@@ -679,6 +680,8 @@ static void dmi_find_icru(const struct dmi_header *dm, void *dummy)
smbios_proliant_ptr = (struct smbios_proliant_info *) dm;
if (smbios_proliant_ptr->misc_features & 0x01)
is_icru = 1;
+ if (smbios_proliant_ptr->misc_features & 0x408)
+ is_uefi = 1;
}
}
@@ -697,7 +700,7 @@ static int hpwdt_init_nmi_decoding(struct pci_dev *dev)
* the old cru detect code.
*/
dmi_walk(dmi_find_icru, NULL);
- if (!is_icru) {
+ if (!is_icru && !is_uefi) {
/*
* We need to map the ROM to get the CRU service.