From htejun@gmail.com Fri Jan 25 10:08:12 2008 From: Shane Huang Date: Fri, 25 Jan 2008 15:46:24 +0900 Subject: PCI: modify SB700 SATA MSI quirk To: Shane Huang Cc: gregkh@suse.de, linux-kernel@vger.kernel.org, linux-pci@atrey.karlin.mff.cuni.cz Message-ID: <479985C0.9020100@gmail.com> From: Shane Huang SB700 SATA MSI bug will be fixed in SB700 revision A21 at hardware level, but the SB700 revision older than A21 will also be found in the market. This patch modify the original quirk commit bc38b411fe696fad32b261f492cb4afbf1835256 instead of withdrawing it. The patch also removes quirk to 0x4395 because 0x4395 is SB800 device ID. Signed-off-by: Shane Huang Signed-off-by: Tejun Heo Signed-off-by: Greg Kroah-Hartman --- drivers/pci/quirks.c | 29 ++++++++++++++++++++++------- 1 file changed, 22 insertions(+), 7 deletions(-) --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -1779,6 +1779,23 @@ static void __devinit quirk_msi_intx_dis { dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG; } +static void __devinit quirk_msi_intx_disable_ati_bug(struct pci_dev *dev) +{ + struct pci_dev *p; + + /* SB700 MSI issue will be fixed at HW level from revision A21, + * we need check PCI REVISION ID of SMBus controller to get SB700 + * revision. + */ + p = pci_get_device(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SBX00_SMBUS, + NULL); + if (!p) + return; + + if ((p->revision < 0x3B) && (p->revision >= 0x30)) + dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG; + pci_dev_put(p); +} DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5780, quirk_msi_intx_disable_bug); @@ -1799,17 +1816,15 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BR quirk_msi_intx_disable_bug); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4390, - quirk_msi_intx_disable_bug); + quirk_msi_intx_disable_ati_bug); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4391, - quirk_msi_intx_disable_bug); + quirk_msi_intx_disable_ati_bug); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4392, - quirk_msi_intx_disable_bug); + quirk_msi_intx_disable_ati_bug); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4393, - quirk_msi_intx_disable_bug); + quirk_msi_intx_disable_ati_bug); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4394, - quirk_msi_intx_disable_bug); -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4395, - quirk_msi_intx_disable_bug); + quirk_msi_intx_disable_ati_bug); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4373, quirk_msi_intx_disable_bug);