From: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
To: linux-ia64@vger.kernel.org
Subject: [PATCH] ia64: Fix iosapic interrupt delivery mode for CPE
Date: Fri, 09 Nov 2007 01:51:01 +0000 [thread overview]
Message-ID: <4733BD05.8040804@jp.fujitsu.com> (raw)
If "CPEI Processor Override" bit is not set in "Platform Interrupt
Source Flags" in "Platform Interrupt Sources Structure" in ACPI MADT,
the target processor of CPEI is restricted to a specific CPU. Because
of this, the delivery mode for CPEI should be IOSAPIC_FIXED.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
---
arch/ia64/kernel/iosapic.c | 2 +-
1 files changed, 1 insertion(+), 1 deletion(-)
Index: linux-2.6.24-rc2/arch/ia64/kernel/iosapic.c
=================================--- linux-2.6.24-rc2.orig/arch/ia64/kernel/iosapic.c
+++ linux-2.6.24-rc2/arch/ia64/kernel/iosapic.c
@@ -938,7 +938,7 @@ iosapic_register_platform_intr (u32 int_
case ACPI_INTERRUPT_CPEI:
irq = vector = IA64_CPE_VECTOR;
BUG_ON(bind_irq_vector(irq, vector, CPU_MASK_ALL));
- delivery = IOSAPIC_LOWEST_PRIORITY;
+ delivery = IOSAPIC_FIXED;
mask = 1;
break;
default:
reply other threads:[~2007-11-09 1:51 UTC|newest]
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