On Wed, Feb 24, 2016 at 06:11:57PM -0800, Yinghai Lu wrote: > Meelis reported that qla2000 driver does not get loaded on one sparc system. > > schizo f00732d0: PCI host bridge to bus 0001:00 > pci_bus 0001:00: root bus resource [io 0x7fe01000000-0x7fe01ffffff] (bus > address [0x0000-0xffffff]) > pci 0001:00:06.0: quirk: [io 0x7fe01000800-0x7fe0100083f] claimed by ali7101 > ACPI > pci 0001:00:06.0: quirk: [io 0x7fe01000600-0x7fe0100061f] claimed by ali7101 > SMB > pci 0001:00:07.0: can't claim BAR 0 [io 0x7fe01000000-0x7fe0100ffff]: > address conflict with 0001:00:06.0 [io 0x7fe01000600-0x7fe0100061f] > > So the quirk for M7101 claim the io range early. > > According to spec with M7101 in M1543 page 103/104, > http://www.versalogic.com/Support/Downloads/pdf/ali1543.pdf > 0xe0, and 0xe2 do not include address info for acpi/smb. > > Kill wrong quirk about them.
This needs an explanation for why the quirk was added in the first place, and why it is now safe to remove it. > Link: http://kodu.ut.ee/~mroos/dm/dm.v240 > Link: http://kodu.ut.ee/~mroos/dm/dm.sb100 > Reported-by: Meelis Roos <mr...@linux.ee> > Cc: Meelis Roos <mr...@linux.ee> > Signed-off-by: Yinghai Lu <ying...@kernel.org> > Tested-by: Khalid Aziz <khalid.a...@oracle.com> > --- > drivers/pci/quirks.c | 18 ------------------ > 1 file changed, 18 deletions(-) > > diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c > index 0575a1e..051999e 100644 > --- a/drivers/pci/quirks.c > +++ b/drivers/pci/quirks.c > @@ -445,24 +445,6 @@ static void quirk_amd_nl_class(struct pci_dev *pdev) > DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_NL_USB, > quirk_amd_nl_class); > > -/* > - * Let's make the southbridge information explicit instead > - * of having to worry about people probing the ACPI areas, > - * for example.. (Yes, it happens, and if you read the wrong > - * ACPI register it will put the machine to sleep with no > - * way of waking it up again. Bummer). > - * > - * ALI M7101: Two IO regions pointed to by words at > - * 0xE0 (64 bytes of ACPI registers) > - * 0xE2 (32 bytes of SMB registers) > - */ > -static void quirk_ali7101_acpi(struct pci_dev *dev) > -{ > - quirk_io_region(dev, 0xE0, 64, PCI_BRIDGE_RESOURCES, "ali7101 ACPI"); > - quirk_io_region(dev, 0xE2, 32, PCI_BRIDGE_RESOURCES+1, "ali7101 SMB"); > -} > -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101, > quirk_ali7101_acpi); > - > static void piix4_io_quirk(struct pci_dev *dev, const char *name, unsigned > int port, unsigned int enable) > { > u32 devres; > -- > 1.8.4.5 >
