From: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Date: Fri, 9 Nov 2007 01:51:01 +0000 (+0900)
Subject: [IA64] Fix iosapic interrupt delivery mode for CPE
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=aa0ebec9cfb8a3fab966db75ac21d05a43f312a1;p=deliverable%2Flinux.git

[IA64] Fix iosapic interrupt delivery mode for CPE

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>
Signed-off-by: Tony Luck <tony.luck@intel.com>
---

diff --git a/arch/ia64/kernel/iosapic.c b/arch/ia64/kernel/iosapic.c
index 96460ca2b906..398e2fd1cd25 100644
--- a/arch/ia64/kernel/iosapic.c
+++ b/arch/ia64/kernel/iosapic.c
@@ -925,7 +925,7 @@ iosapic_register_platform_intr (u32 int_type, unsigned int gsi,
 	      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: