| Message ID | 1475615720-31047-3-git-send-email-okaya@codeaurora.org (mailing list archive) |
|---|---|
| State | New, archived |
| Delegated to: | Bjorn Helgaas |
| Headers | show |
On Tue, Oct 04, 2016 at 05:15:18PM -0400, Sinan Kaya wrote: > The change introduced in commit 103544d86976 ("ACPI,PCI,IRQ: reduce > resource requirements") removed PCI_USING penalty from > acpi_pci_link_allocate function as there is no longer a fixed size penalty > array for both PCI and IRQ interrupts. > > We need to add the PCI_USING penalty for ISA interrupts too if the link is > in use and matches our ISA IRQ number. > > Tested-by: Jonathan Liu <net147@gmail.com> > Tested-by: Ondrej Zary <linux@rainbow-software.org> > Signed-off-by: Sinan Kaya <okaya@codeaurora.org> > --- > drivers/acpi/pci_link.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c > index f3792f4..06c2a11 100644 > --- a/drivers/acpi/pci_link.c > +++ b/drivers/acpi/pci_link.c > @@ -620,6 +620,10 @@ static int acpi_pci_link_allocate(struct acpi_pci_link *link) > acpi_device_bid(link->device)); > return -ENODEV; > } else { > + if (link->irq.active < ACPI_MAX_IRQS) > + acpi_irq_penalty[link->irq.active] += > + PIRQ_PENALTY_PCI_USING; Nit: elsewhere you use ARRAY_SIZE(acpi_irq_penalty), so it'd be nice to be consistent, e.g., if (link->irq.active < ARRAY_SIZE(acpi_irq_penalty)) acpi_irq_penalty[link->irq.active] += PIRQ_PENALTY_PCI_USING; There are a couple other similar uses in acpi_irq_get_penalty() and acpi_irq_penalty_init(). > printk(KERN_WARNING PREFIX "%s [%s] enabled at IRQ %d\n", > acpi_device_name(link->device), > acpi_device_bid(link->device), link->irq.active); > -- > 1.9.1 > > -- > 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 -- To unsubscribe from this list: send the line "unsubscribe linux-pci" 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/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c index f3792f4..06c2a11 100644 --- a/drivers/acpi/pci_link.c +++ b/drivers/acpi/pci_link.c @@ -620,6 +620,10 @@ static int acpi_pci_link_allocate(struct acpi_pci_link *link) acpi_device_bid(link->device)); return -ENODEV; } else { + if (link->irq.active < ACPI_MAX_IRQS) + acpi_irq_penalty[link->irq.active] += + PIRQ_PENALTY_PCI_USING; + printk(KERN_WARNING PREFIX "%s [%s] enabled at IRQ %d\n", acpi_device_name(link->device), acpi_device_bid(link->device), link->irq.active);
The change introduced in commit 103544d86976 ("ACPI,PCI,IRQ: reduce resource requirements") removed PCI_USING penalty from acpi_pci_link_allocate function as there is no longer a fixed size penalty array for both PCI and IRQ interrupts. We need to add the PCI_USING penalty for ISA interrupts too if the link is in use and matches our ISA IRQ number. Tested-by: Jonathan Liu <net147@gmail.com> Tested-by: Ondrej Zary <linux@rainbow-software.org> Signed-off-by: Sinan Kaya <okaya@codeaurora.org> --- drivers/acpi/pci_link.c | 4 ++++ 1 file changed, 4 insertions(+)