From: Rajesh Shah Date: Wed, 17 Aug 2005 00:32:04 +0000 (-0700) Subject: [PATCH] PCI: Fix PCI bus mastering enable problem in pciehp X-Git-Tag: v2.6.14-rc1~260^2~2 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7c56075e60caaff1314decdb61b72ef576915270;p=linux-2.6 [PATCH] PCI: Fix PCI bus mastering enable problem in pciehp Martin Franc reported that the pciehp driver was not enabling bus master capability on his hot-plugged card. pciehprm_enable_card() was updating the PCI command register only if _HPP indicated a value for SERR or PERR that was different from the current setting. I don't have hardware that reproduces this problem, but Martin reports that this patch fixes the problem for him. Signed-off-by: Rajesh Shah Signed-off-by: Greg Kroah-Hartman From rzarev@its.caltech.edu Tue Sep 6 18:29:50 2005 Date: Tue, 6 Sep 2005 13:39:32 -0700 (PDT) From: Rumen Ivanov Zarev Message-Id: <200509062039.j86KdWMr014934@inky.its.caltech.edu> To: gregkh@suse.de Subject: PCI: Unhide SMBus on Compaq Evo N620c Cc: linux-kernel@vger.kernel.org Trivial patch against 2.6.13 to unhide SMBus on Compaq Evo N620c laptop using Intel 82855PM chipset. Signed-off-by: Rumen Zarev Signed-off-by: Greg Kroah-Hartman --- drivers/pci/quirks.c | 6 ++++++ 1 file changed, 6 insertions(+) --- gregkh-2.6.orig/drivers/pci/quirks.c 2005-09-09 10:28:55.000000000 -0700 +++ gregkh-2.6/drivers/pci/quirks.c 2005-09-09 13:51:44.000000000 -0700 @@ -876,6 +876,12 @@ static void __init asus_hides_smbus_host case 0xC00C: /* Samsung P35 notebook */ asus_hides_smbus = 1; } + } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_COMPAQ)) { + if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB) + switch(dev->subsystem_device) { + case 0x0058: /* Compaq Evo N620c */ + asus_hides_smbus = 1; + } } } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845_HB, asus_hides_smbus_hostbridge ); --- diff --git a/drivers/pci/hotplug/pciehprm_acpi.c b/drivers/pci/hotplug/pciehprm_acpi.c index 305b47ec2f..1406db35b0 100644 --- a/drivers/pci/hotplug/pciehprm_acpi.c +++ b/drivers/pci/hotplug/pciehprm_acpi.c @@ -1696,15 +1696,15 @@ void pciehprm_enable_card( pci_bus->number = func->bus; devfn = PCI_DEVFN(func->device, func->function); - rc = pci_bus_read_config_word(pci_bus, devfn, PCI_COMMAND, &command); + rc = pci_bus_read_config_word(pci_bus, devfn, PCI_COMMAND, &cmd); if (card_type == PCI_HEADER_TYPE_BRIDGE) { - rc = pci_bus_read_config_word(pci_bus, devfn, PCI_BRIDGE_CONTROL, &bcommand); + rc = pci_bus_read_config_word(pci_bus, devfn, PCI_BRIDGE_CONTROL, &bcmd); } - cmd = command = command | PCI_COMMAND_MASTER | PCI_COMMAND_INVALIDATE + command = cmd | PCI_COMMAND_MASTER | PCI_COMMAND_INVALIDATE | PCI_COMMAND_IO | PCI_COMMAND_MEMORY; - bcmd = bcommand = bcommand | PCI_BRIDGE_CTL_NO_ISA; + bcommand = bcmd | PCI_BRIDGE_CTL_NO_ISA; ab = find_acpi_bridge_by_bus(acpi_bridges_head, ctrl->seg, ctrl->bus); if (ab) {