| Message ID | 1440141992-21945-1-git-send-email-jiang.liu@linux.intel.com (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
Hi all, Sorry press send to fast, will resend with proper commit message. Thanks! Gerry On 2015/8/21 15:26, Jiang Liu wrote: > Hi Nick, > Rafael and Thomas have concerns about the way to solve the > regression by quirk, so could you please help to test this patch? > Thanks! > Gerry > > Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> > --- > arch/x86/kernel/acpi/boot.c | 1 + > drivers/acpi/pci_link.c | 16 ++++++++++++++++ > include/linux/acpi.h | 2 +- > 3 files changed, 18 insertions(+), 1 deletion(-) > > diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c > index e49ee24da85e..9393896717d0 100644 > --- a/arch/x86/kernel/acpi/boot.c > +++ b/arch/x86/kernel/acpi/boot.c > @@ -445,6 +445,7 @@ static void __init acpi_sci_ioapic_setup(u8 bus_irq, u16 polarity, u16 trigger, > polarity = acpi_sci_flags & ACPI_MADT_POLARITY_MASK; > > mp_override_legacy_irq(bus_irq, polarity, trigger, gsi); > + acpi_penalize_sci_irq(bus_irq, trigger, polarity); > > /* > * stash over-ride to indicate we've been here > diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c > index cfd7581cc19f..b09ad554430a 100644 > --- a/drivers/acpi/pci_link.c > +++ b/drivers/acpi/pci_link.c > @@ -826,6 +826,22 @@ void acpi_penalize_isa_irq(int irq, int active) > } > > /* > + * Penalize IRQ used by ACPI SCI. If ACPI SCI pin attributes conflict with > + * PCI IRQ attributes, mark ACPI SCI as ISA_ALWAYS so it won't be use for > + * PCI IRQs. > + */ > +void acpi_penalize_sci_irq(int irq, int trigger, int polarity) > +{ > + if (irq >= 0 && irq < ARRAY_SIZE(acpi_irq_penalty)) { > + if (trigger != ACPI_MADT_TRIGGER_LEVEL || > + polarity != ACPI_MADT_POLARITY_ACTIVE_LOW) > + acpi_irq_penalty[irq] += PIRQ_PENALTY_ISA_ALWAYS; > + else > + acpi_irq_penalty[irq] += PIRQ_PENALTY_PCI_USING; > + } > +} > + > +/* > * Over-ride default table to reserve additional IRQs for use by ISA > * e.g. acpi_irq_isa=5 > * Useful for telling ACPI how not to interfere with your ISA sound card. > diff --git a/include/linux/acpi.h b/include/linux/acpi.h > index d2445fa9999f..0b2394f61af4 100644 > --- a/include/linux/acpi.h > +++ b/include/linux/acpi.h > @@ -221,7 +221,7 @@ struct pci_dev; > > int acpi_pci_irq_enable (struct pci_dev *dev); > void acpi_penalize_isa_irq(int irq, int active); > - > +void acpi_penalize_sci_irq(int irq, int trigger, int polarity); > void acpi_pci_irq_disable (struct pci_dev *dev); > > extern int ec_read(u8 addr, u8 *val); > -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index e49ee24da85e..9393896717d0 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -445,6 +445,7 @@ static void __init acpi_sci_ioapic_setup(u8 bus_irq, u16 polarity, u16 trigger, polarity = acpi_sci_flags & ACPI_MADT_POLARITY_MASK; mp_override_legacy_irq(bus_irq, polarity, trigger, gsi); + acpi_penalize_sci_irq(bus_irq, trigger, polarity); /* * stash over-ride to indicate we've been here diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c index cfd7581cc19f..b09ad554430a 100644 --- a/drivers/acpi/pci_link.c +++ b/drivers/acpi/pci_link.c @@ -826,6 +826,22 @@ void acpi_penalize_isa_irq(int irq, int active) } /* + * Penalize IRQ used by ACPI SCI. If ACPI SCI pin attributes conflict with + * PCI IRQ attributes, mark ACPI SCI as ISA_ALWAYS so it won't be use for + * PCI IRQs. + */ +void acpi_penalize_sci_irq(int irq, int trigger, int polarity) +{ + if (irq >= 0 && irq < ARRAY_SIZE(acpi_irq_penalty)) { + if (trigger != ACPI_MADT_TRIGGER_LEVEL || + polarity != ACPI_MADT_POLARITY_ACTIVE_LOW) + acpi_irq_penalty[irq] += PIRQ_PENALTY_ISA_ALWAYS; + else + acpi_irq_penalty[irq] += PIRQ_PENALTY_PCI_USING; + } +} + +/* * Over-ride default table to reserve additional IRQs for use by ISA * e.g. acpi_irq_isa=5 * Useful for telling ACPI how not to interfere with your ISA sound card. diff --git a/include/linux/acpi.h b/include/linux/acpi.h index d2445fa9999f..0b2394f61af4 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -221,7 +221,7 @@ struct pci_dev; int acpi_pci_irq_enable (struct pci_dev *dev); void acpi_penalize_isa_irq(int irq, int active); - +void acpi_penalize_sci_irq(int irq, int trigger, int polarity); void acpi_pci_irq_disable (struct pci_dev *dev); extern int ec_read(u8 addr, u8 *val);
Hi Nick, Rafael and Thomas have concerns about the way to solve the regression by quirk, so could you please help to test this patch? Thanks! Gerry Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> --- arch/x86/kernel/acpi/boot.c | 1 + drivers/acpi/pci_link.c | 16 ++++++++++++++++ include/linux/acpi.h | 2 +- 3 files changed, 18 insertions(+), 1 deletion(-)