Messages in this thread | | | Date | Sun, 27 Jun 2010 18:14:29 -0600 | From | Robert Hancock <> | Subject | Re: [PATCH 1/1] ACPI: pci_irq, add PRT_ quirk for IBM Bartolo |
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On 06/27/2010 03:21 PM, Jiri Slaby wrote: > On IBM Bartolo machines, cards in 00:09.0 are defunct (if use > interrupts). DSDT says that this slot (with function 0, i.e. pin A) is > routed to \_SB_.PCI0.PIB_.LNKB. But it's not, it's wired to LNKC, so > interrupts are misrouted. Add a quirk for this to workaround the > issue.
That seems a rather serious DSDT flaw. Do devices in that slot work in Windows?
> > This error was reported in suse bugzilla at: > https://bugzilla.novell.com/show_bug.cgi?id=595683
Apparently that bugzilla requires a login to even view the bug, seems bizarre to me..
> > Signed-off-by: Jiri Slaby<jslaby@suse.cz> > Cc: Len Brown<lenb@kernel.org> > Cc: Jesse Barnes<jbarnes@virtuousgeek.org> > --- > drivers/acpi/pci_irq.c | 15 +++++++++++++++ > 1 files changed, 15 insertions(+), 0 deletions(-) > > diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c > index e4804fb..8e054a4 100644 > --- a/drivers/acpi/pci_irq.c > +++ b/drivers/acpi/pci_irq.c > @@ -125,6 +125,18 @@ static const struct dmi_system_id hp_t5710[] = { > { } > }; > > +/* https://bugzilla.novell.com/show_bug.cgi?id=595683 */ > +static const struct dmi_system_id ibm_bartolo[] = { > + { > + .ident = "IBM Bartolo", > + .matches = { > + DMI_MATCH(DMI_SYS_VENDOR, "IBM CORPORATION"), > + DMI_MATCH(DMI_PRODUCT_NAME, "4810320"), > + }, > + }, > + { } > +}; > + > struct prt_quirk { > const struct dmi_system_id *system; > unsigned int segment; > @@ -152,6 +164,9 @@ static const struct prt_quirk prt_quirks[] = { > { hp_t5710, 0, 0, 1, PCI_INTX_PIN('A'), > "\\_SB_.PCI0.LNK1", > "\\_SB_.PCI0.LNK3"}, > + { ibm_bartolo, 0, 0, 9, PCI_INTX_PIN('A'), > + "\\_SB_.PCI0.PIB_.LNKB", > + "\\_SB_.PCI0.PIB_.LNKC"}, > }; > > static void do_prt_fixups(struct acpi_prt_entry *entry,
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