linux-kernel - [PATCH] x86_64: AMD Family 10h enable ext config in quirk

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Date:	Tue, 22 Jan 2008 01:10:19 -0800
From:	Yinghai Lu <Yinghai.Lu@....COM>
To:	akpm@...ux-foundation.org, greg@...ah.com
Cc:	LKML <linux-kernel@...r.kernel.org>, ak@...e.de, hpa@...or.com,
	mingo@...e.hu, tglx@...utronix.de
Subject: [PATCH] x86_64: AMD Family 10h enable ext config in quirk

need to be applied after
gregkh-pci-pci-make-pci-extended-config-space-a-driver-opt-in.patch
x86_64-set-cfg_size-for-amd-family-10h-in-case-mmconfig-is-used.patch

[PATCH] x86_64: AMD Family 10h enable ext config in quirk

because of changes of
gregkh-pci-pci-make-pci-extended-config-space-a-driver-opt-in.patch

need to call pci_enable_ext_config to enable mmconfig before set right cfg_size
even MCFG is there

Signed-off-by: Yinghai Lu <yinghai.lu@....com>

--- a/arch/x86/pci/fixup.c	2008-01-22 00:54:38.000000000 -0800
+++ b/arch/x86/pci/fixup.c	2008-01-22 00:55:06.000000000 -0800
@@ -498,10 +498,12 @@
  * access it.  Maybe we don't have a way to generate extended config space
  * accesses.   So check it
  */
-static void fam10h_pci_cfg_space_size(struct pci_dev *dev)
+static void fam10h_enable_pci_ext_cfg(struct pci_dev *dev)
 {
+	pci_enable_ext_config(dev);
+	/* recheck cfg_size without pcie_pcix checking */
 	dev->cfg_size = pci_cfg_space_size_ext(dev, 0);
 }
 
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_ANY_ID,
-			 fam10h_pci_cfg_space_size);
+			 fam10h_enable_pci_ext_cfg);

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