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From: "Andy Currid" <acurrid@nvidia.com>
To: <linux-kernel@vger.kernel.org>
Subject: [PATCH][2.4.26 x86_64] fix ACPI PRT entry handling
Date: Fri, 21 May 2004 15:23:22 -0700	[thread overview]
Message-ID: <D621AA393FEB2544B1370005D36B875A05765F86@mail-sc-12.nvidia.com> (raw)


This patch fixes a PCI interrupt routing bug that shows up when running
on x86_64 with ACPI and IOAPIC functionality enabled. Without this patch
in place, the code attempts to route all configurable PCI interrupts to
IRQ 0.

Regards

Andy
--
Andy Currid, NVIDIA Corporation 
acurrid@nvidia.com   408 566 6743

--
diff -Nupr linux-2.4.26/arch/x86_64/kernel/mpparse.c
linux-2.4.26-patch/arch/x86_64/kernel/mpparse.c
--- linux-2.4.26/arch/x86_64/kernel/mpparse.c	2004-05-21
06:39:40.000000000 -0700
+++ linux-2.4.26-patch/arch/x86_64/kernel/mpparse.c	2004-05-21
06:39:33.000000000 -0700
@@ -942,8 +942,6 @@ void __init mp_parse_prt (void)
 			irq = entry->link.index;
 		}
 
-		irq = entry->link.index;
-
   		/* Don't set up the ACPI SCI because it's already set up
*/
                 if (acpi_fadt.sci_int == irq) {
                          entry->irq = irq; /*we still need to set
entry's irq*/

             reply	other threads:[~2004-05-21 22:23 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-05-21 22:23 Andy Currid [this message]
     [not found] <A6974D8E5F98D511BB910002A50A6647615FBF36@hdsmsx403.hd.intel.com>
2004-05-23  2:58 ` Len Brown

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