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From: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
To: vgoyal@in.ibm.com, hbabu@us.ibm.com, tglx@linutronix.de
Cc: kexec@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/3] x86: add lapic_shutdown for x86_64
Date: Fri, 19 Oct 2007 18:21:11 -0700	[thread overview]
Message-ID: <47195807.6030809@ct.jp.nec.com> (raw)
In-Reply-To: <47195763.1090803@ct.jp.nec.com>

From: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
---
 arch/x86/kernel/apic_64.c |   14 ++++++++++++++
 include/asm-x86/apic_64.h |    1 +
 2 files changed, 15 insertions(+), 0 deletions(-)

diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c
index f47bc49..f28ccb5 100644
--- a/arch/x86/kernel/apic_64.c
+++ b/arch/x86/kernel/apic_64.c
@@ -287,6 +287,20 @@ void disable_local_APIC(void)
 	apic_write(APIC_SPIV, value);
 }
 
+void lapic_shutdown(void)
+{
+	unsigned long flags;
+
+	if (!cpu_has_apic)
+		return;
+
+	local_irq_save(flags);
+
+	disable_local_APIC();
+
+	local_irq_restore(flags);
+}
+
 /*
  * This is to verify that we're looking at a real local APIC.
  * Check these against your board if the CPUs aren't getting
diff --git a/include/asm-x86/apic_64.h b/include/asm-x86/apic_64.h
index 3c8f21e..2747a11 100644
--- a/include/asm-x86/apic_64.h
+++ b/include/asm-x86/apic_64.h
@@ -69,6 +69,7 @@ extern void clear_local_APIC (void);
 extern void connect_bsp_APIC (void);
 extern void disconnect_bsp_APIC (int virt_wire_setup);
 extern void disable_local_APIC (void);
+extern void lapic_shutdown (void);
 extern int verify_local_APIC (void);
 extern void cache_APIC_registers (void);
 extern void sync_Arb_IDs (void);
-- 
1.5.2.3

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WARNING: multiple messages have this Message-ID (diff)
From: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
To: vgoyal@in.ibm.com, hbabu@us.ibm.com, tglx@linutronix.de
Cc: linux-kernel@vger.kernel.org, kexec@lists.infradead.org
Subject: Re: [PATCH 1/3] x86: add lapic_shutdown for x86_64
Date: Fri, 19 Oct 2007 18:21:11 -0700	[thread overview]
Message-ID: <47195807.6030809@ct.jp.nec.com> (raw)
In-Reply-To: <47195763.1090803@ct.jp.nec.com>

From: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
---
 arch/x86/kernel/apic_64.c |   14 ++++++++++++++
 include/asm-x86/apic_64.h |    1 +
 2 files changed, 15 insertions(+), 0 deletions(-)

diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c
index f47bc49..f28ccb5 100644
--- a/arch/x86/kernel/apic_64.c
+++ b/arch/x86/kernel/apic_64.c
@@ -287,6 +287,20 @@ void disable_local_APIC(void)
 	apic_write(APIC_SPIV, value);
 }
 
+void lapic_shutdown(void)
+{
+	unsigned long flags;
+
+	if (!cpu_has_apic)
+		return;
+
+	local_irq_save(flags);
+
+	disable_local_APIC();
+
+	local_irq_restore(flags);
+}
+
 /*
  * This is to verify that we're looking at a real local APIC.
  * Check these against your board if the CPUs aren't getting
diff --git a/include/asm-x86/apic_64.h b/include/asm-x86/apic_64.h
index 3c8f21e..2747a11 100644
--- a/include/asm-x86/apic_64.h
+++ b/include/asm-x86/apic_64.h
@@ -69,6 +69,7 @@ extern void clear_local_APIC (void);
 extern void connect_bsp_APIC (void);
 extern void disconnect_bsp_APIC (int virt_wire_setup);
 extern void disable_local_APIC (void);
+extern void lapic_shutdown (void);
 extern int verify_local_APIC (void);
 extern void cache_APIC_registers (void);
 extern void sync_Arb_IDs (void);
-- 
1.5.2.3

  reply	other threads:[~2007-10-20  1:21 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-10-20  1:18 [PATCH 0/3] x86: unify crash_32/64.c Hiroshi Shimamoto
2007-10-20  1:18 ` Hiroshi Shimamoto
2007-10-20  1:21 ` Hiroshi Shimamoto [this message]
2007-10-20  1:21   ` [PATCH 1/3] x86: add lapic_shutdown for x86_64 Hiroshi Shimamoto
2007-10-24  6:29   ` Vivek Goyal
2007-10-24  6:29     ` Vivek Goyal
2007-10-24 21:27     ` Hiroshi Shimamoto
2007-10-24 21:27       ` Hiroshi Shimamoto
2007-10-25  0:28       ` Eric W. Biederman
2007-10-25  0:28         ` Eric W. Biederman
2007-10-29 22:45         ` Hiroshi Shimamoto
2007-10-29 22:45           ` Hiroshi Shimamoto
2007-10-29 22:39     ` [PATCH] Revert " Hiroshi Shimamoto
2007-10-29 22:39       ` Hiroshi Shimamoto
2007-10-29 23:15       ` Arjan van de Ven
2007-10-29 23:15         ` Arjan van de Ven
2007-10-30  0:05         ` Hiroshi Shimamoto
2007-10-30  0:05           ` Hiroshi Shimamoto
2007-10-30  1:06           ` Thomas Gleixner
2007-10-30  1:06             ` Thomas Gleixner
2007-10-20  1:23 ` [PATCH 2/3] x86: add safe_smp_processor_id " Hiroshi Shimamoto
2007-10-20  1:23   ` Hiroshi Shimamoto
2007-10-24  6:31   ` Vivek Goyal
2007-10-24  6:31     ` Vivek Goyal
2007-10-24  9:01     ` Vivek Goyal
2007-10-24  9:01       ` Vivek Goyal
2007-10-20  1:24 ` [PATCH 3/3] x86: unify crash_32/64.c Hiroshi Shimamoto
2007-10-20  1:24   ` Hiroshi Shimamoto
2007-10-20 10:50 ` [PATCH 0/3] " Thomas Gleixner
2007-10-20 10:50   ` Thomas Gleixner
2007-10-24  6:34 ` Vivek Goyal
2007-10-24  6:34   ` Vivek Goyal
2007-10-24 16:28   ` Hiroshi Shimamoto
2007-10-24 16:28     ` Hiroshi Shimamoto
2007-10-25 17:58     ` Hiroshi Shimamoto
2007-10-25 17:58       ` Hiroshi Shimamoto
2007-10-26 21:43       ` Hiroshi Shimamoto
2007-10-26 21:43         ` Hiroshi Shimamoto
2007-10-26 22:37         ` Thomas Gleixner
2007-10-26 22:37           ` Thomas Gleixner
2007-10-27  0:13           ` Hiroshi Shimamoto
2007-10-27  0:13             ` Hiroshi Shimamoto
2007-10-27  1:15             ` Hiroshi Shimamoto
2007-10-27  1:15               ` Hiroshi Shimamoto

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