From: Christophe Leroy <christophe.leroy@c-s.fr>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Michael Ellerman <mpe@ellerman.id.au>,
Scott Wood <oss@buserror.net>
Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org
Subject: [PATCH] powerpc/8xx: add system_reset_exception
Date: Mon, 5 Sep 2016 08:42:31 +0200 (CEST) [thread overview]
Message-ID: <20160905064232.2CEB11A245A@localhost.localdomain> (raw)
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@c-s.fr>
---
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
next reply other threads:[~2016-09-05 6:42 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-05 6:42 Christophe Leroy [this message]
2016-09-06 22:40 ` [PATCH] powerpc/8xx: add system_reset_exception Scott Wood
2016-09-07 5:15 ` Christophe Leroy
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