linux-kernel - [patch] PCI: disable the MSI of AMD RS690

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Message-ID: <B90463BC30D2E446BA423D888DC85E501BF78E@sshaexmb1.amd.com>
Date:	Thu, 24 Jan 2008 18:59:04 +0800
From:	"Shane Huang" <Shane.Huang@....com>
To:	gregkh@...e.de
cc:	linux-kernel@...r.kernel.org, linux-pci@...ey.karlin.mff.cuni.cz,
	htejun@...il.com, "Shane Huang" <Shane.Huang@....com>
Subject: [patch] PCI: disable the MSI of AMD RS690

This patch recover Tejun's commit
4be8f906435a6af241821ab5b94b2b12cb7d57d8
 because there is one MSI bug on RS690+SB600 board which will lead to
boot failure. This bug is NOT same as the one in SB700 SATA controller,
quirk_msi_intx_disable_bug does not work to SB600. Disablement the MSI
of RS690 is the workaround.

Signed-off-by: Shane Huang <shane.huang@....com>


Since there is some word wrapping problem with my mail client MS outlook
if I copy the patch into the text, so I'll also attach the patch as an
attachment. Please check it.


diff -ruN old/drivers/pci/quirks.c new/drivers/pci/quirks.c
--- old/drivers/pci/quirks.c	2008-01-07 05:45:38.000000000 +0800
+++ new/drivers/pci/quirks.c	2008-01-22 11:02:00.000000000 +0800
@@ -1623,6 +1623,7 @@
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS,
PCI_DEVICE_ID_SERVERWORKS_GCNB_LE, quirk_disable_all_msi);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS400_200,
quirk_disable_all_msi);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS480,
quirk_disable_all_msi);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS690,
quirk_disable_all_msi);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3351,
quirk_disable_all_msi);
 
 /* Disable MSI on chipsets that are known to not support it */
diff -ruN old/include/linux/pci_ids.h new/include/linux/pci_ids.h
--- old/include/linux/pci_ids.h	2008-01-07 05:45:38.000000000 +0800
+++ new/include/linux/pci_ids.h	2008-01-22 11:01:55.000000000 +0800
@@ -360,6 +360,7 @@
 #define PCI_DEVICE_ID_ATI_RS400_166     0x5a32
 #define PCI_DEVICE_ID_ATI_RS400_200     0x5a33
 #define PCI_DEVICE_ID_ATI_RS480         0x5950
+#define PCI_DEVICE_ID_ATI_RS690         0x7910
 /* ATI IXP Chipset */
 #define PCI_DEVICE_ID_ATI_IXP200_IDE	0x4349
 #define PCI_DEVICE_ID_ATI_IXP200_SMBUS	0x4353



Thanks
Best Regards
Shane


Download attachment "disable_RS690_MSI.patch" of type "application/octet-stream" (1295 bytes)