[PATCH] powerpc/8xx: add system_reset_exception

From: Christophe Leroy
Date: Mon Sep 05 2016 - 02:42:40 EST


When the watchdog is in NMI mode, the system reset interrupt is
generated when the watchdog counter expires.

Signed-off-by: Christophe Leroy <christophe.leroy@xxxxxx>
---
arch/powerpc/kernel/head_8xx.S | 2 +-
arch/powerpc/kernel/traps.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/kernel/head_8xx.S b/arch/powerpc/kernel/head_8xx.S
index 43ddaae..f7b8007 100644
--- a/arch/powerpc/kernel/head_8xx.S
+++ b/arch/powerpc/kernel/head_8xx.S
@@ -227,7 +227,7 @@ i##n: \
ret_from_except)

/* System reset */
- EXCEPTION(0x100, Reset, unknown_exception, EXC_XFER_STD)
+ EXCEPTION(0x100, Reset, system_reset_exception, EXC_XFER_STD)

/* Machine check */
. = 0x200
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index 2cb5892..f8fa11b 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -269,7 +269,6 @@ void _exception(int signr, struct pt_regs *regs, int code, unsigned long addr)
force_sig_info(signr, &info, current);
}

-#ifdef CONFIG_PPC64
void system_reset_exception(struct pt_regs *regs)
{
/* See if any machine dependent calls */
@@ -287,6 +286,7 @@ void system_reset_exception(struct pt_regs *regs)
/* What should we do here? We could issue a shutdown or hard reset. */
}

+#ifdef CONFIG_PPC64
/*
* This function is called in real mode. Strictly no printk's please.
*
--
2.1.0