Commit-ID: c03b3b0738a56cf283b0d05256988d5e3c8bd719 Gitweb: http://git.kernel.org/tip/c03b3b0738a56cf283b0d05256988d5e3c8bd719 Author: Jiang Liu <jiang....@linux.intel.com> AuthorDate: Mon, 9 Jun 2014 16:20:08 +0800 Committer: Thomas Gleixner <t...@linutronix.de> CommitDate: Sat, 21 Jun 2014 23:05:44 +0200
x86, irq, mpparse: Release IOAPIC pin when PCI device is disabled Release IOAPIC pin associated with PCI device when the PCI device is disabled. Signed-off-by: Jiang Liu <jiang....@linux.intel.com> Cc: Konrad Rzeszutek Wilk <konrad.w...@oracle.com> Cc: Tony Luck <tony.l...@intel.com> Cc: Joerg Roedel <j...@8bytes.org> Cc: Paul Gortmaker <paul.gortma...@windriver.com> Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org> Cc: Benjamin Herrenschmidt <b...@kernel.crashing.org> Cc: Grant Likely <grant.lik...@linaro.org> Cc: Rafael J. Wysocki <r...@rjwysocki.net> Cc: Bjorn Helgaas <bhelg...@google.com> Cc: Randy Dunlap <rdun...@infradead.org> Cc: Yinghai Lu <ying...@kernel.org> Link: http://lkml.kernel.org/r/1402302011-23642-40-git-send-email-jiang....@linux.intel.com Signed-off-by: Thomas Gleixner <t...@linutronix.de> --- arch/x86/kernel/mpparse.c | 1 + arch/x86/pci/irq.c | 13 +++++++++++-- 2 files changed, 12 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c index faf503a..fde86d2 100644 --- a/arch/x86/kernel/mpparse.c +++ b/arch/x86/kernel/mpparse.c @@ -115,6 +115,7 @@ static void __init MP_bus_info(struct mpc_bus *m) static struct irq_domain_ops mp_ioapic_irqdomain_ops = { .map = mp_irqdomain_map, + .unmap = mp_irqdomain_unmap, }; static void __init MP_ioapic_info(struct mpc_ioapic *m) diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c index e4200e5..748cfe8 100644 --- a/arch/x86/pci/irq.c +++ b/arch/x86/pci/irq.c @@ -26,6 +26,7 @@ static int acer_tm360_irqrouting; static struct irq_routing_table *pirq_table; static int pirq_enable_irq(struct pci_dev *dev); +static void pirq_disable_irq(struct pci_dev *dev); /* * Never use: 0, 1, 2 (timer, keyboard, and cascade) @@ -53,7 +54,7 @@ struct irq_router_handler { }; int (*pcibios_enable_irq)(struct pci_dev *dev) = pirq_enable_irq; -void (*pcibios_disable_irq)(struct pci_dev *dev) = NULL; +void (*pcibios_disable_irq)(struct pci_dev *dev) = pirq_disable_irq; /* * Check passed address for the PCI IRQ Routing Table signature @@ -1186,7 +1187,7 @@ void pcibios_penalize_isa_irq(int irq, int active) static int pirq_enable_irq(struct pci_dev *dev) { - u8 pin; + u8 pin = 0; pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin); if (pin && !pcibios_lookup_irq(dev, 1)) { @@ -1252,3 +1253,11 @@ static int pirq_enable_irq(struct pci_dev *dev) } return 0; } + +static void pirq_disable_irq(struct pci_dev *dev) +{ + if (io_apic_assign_pci_irqs && dev->irq) { + mp_unmap_irq(dev->irq); + dev->irq = 0; + } +} -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
