linux-kernel - Re: [2.6.18-git] Lost all PCI devices

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Date:	Sat, 30 Sep 2006 20:11:13 +0200
From:	Andi Kleen <ak@...e.de>
To:	Luca Tettamanti <kronos.it@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [2.6.18-git] Lost all PCI devices

On Saturday 30 September 2006 19:42, Luca Tettamanti wrote:
> Hi Andi,
> I'm testing current git on my notebook, but kernel doesn't find any
> PCI device: no video card, no IDE, nothing.

Can you test it with this patch please? 

-Andi

Fix PCI BIOS config space access

Got broken by a earlier change.

Signed-off-by: Andi Kleen <ak@...e.de>

Index: linux/arch/i386/pci/direct.c
===================================================================
--- linux.orig/arch/i386/pci/direct.c
+++ linux/arch/i386/pci/direct.c
@@ -256,6 +256,8 @@ static int __init pci_check_type2(void)
 
 void __init pci_direct_init(int type)
 {
+	if (type == 0)
+		return;
 	printk(KERN_INFO "PCI: Using configuration type %d\n", type);
 	if (type == 1)
 		raw_pci_ops = &pci_direct_conf1;
Index: linux/arch/i386/pci/init.c
===================================================================
--- linux.orig/arch/i386/pci/init.c
+++ linux/arch/i386/pci/init.c
@@ -28,6 +28,10 @@ static __init int pci_access_init(void)
 #ifdef CONFIG_PCI_DIRECT
 	pci_direct_init(type);
 #endif
+	if (!raw_pci_ops)
+		printk(KERN_ERR 
+		"PCI: Fatal: No config space access function found\n");
+
 	return 0;
 }
 arch_initcall(pci_access_init);
-
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