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authorKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2011-12-16 17:38:18 -0500
committerJesse Barnes <jbarnes@virtuousgeek.org>2012-01-06 14:02:26 -0800
commit76ccc297018d25d55b789bbd508861ef1e2cdb0c (patch)
tree27789ff0ea4a77ce4972987a836156255808f703 /arch/x86/include
parentfb7ebfe4108e2cdfa2bb88e57148087717463dfa (diff)
downloadblackbird-op-linux-76ccc297018d25d55b789bbd508861ef1e2cdb0c.tar.gz
blackbird-op-linux-76ccc297018d25d55b789bbd508861ef1e2cdb0c.zip
x86/PCI: Expand the x86_msi_ops to have a restore MSIs.
The MSI restore function will become a function pointer in an x86_msi_ops struct. It defaults to the implementation in the io_apic.c and msi.c. We piggyback on the indirection mechanism introduced by "x86: Introduce x86_msi_ops". Cc: x86@kernel.org Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: linux-pci@vger.kernel.org Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'arch/x86/include')
-rw-r--r--arch/x86/include/asm/pci.h9
-rw-r--r--arch/x86/include/asm/x86_init.h1
2 files changed, 10 insertions, 0 deletions
diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h
index d498943b906c..df75d07571ce 100644
--- a/arch/x86/include/asm/pci.h
+++ b/arch/x86/include/asm/pci.h
@@ -112,19 +112,28 @@ static inline void x86_teardown_msi_irq(unsigned int irq)
{
x86_msi.teardown_msi_irq(irq);
}
+static inline void x86_restore_msi_irqs(struct pci_dev *dev, int irq)
+{
+ x86_msi.restore_msi_irqs(dev, irq);
+}
#define arch_setup_msi_irqs x86_setup_msi_irqs
#define arch_teardown_msi_irqs x86_teardown_msi_irqs
#define arch_teardown_msi_irq x86_teardown_msi_irq
+#define arch_restore_msi_irqs x86_restore_msi_irqs
/* implemented in arch/x86/kernel/apic/io_apic. */
int native_setup_msi_irqs(struct pci_dev *dev, int nvec, int type);
void native_teardown_msi_irq(unsigned int irq);
+void native_restore_msi_irqs(struct pci_dev *dev, int irq);
/* default to the implementation in drivers/lib/msi.c */
#define HAVE_DEFAULT_MSI_TEARDOWN_IRQS
+#define HAVE_DEFAULT_MSI_RESTORE_IRQS
void default_teardown_msi_irqs(struct pci_dev *dev);
+void default_restore_msi_irqs(struct pci_dev *dev, int irq);
#else
#define native_setup_msi_irqs NULL
#define native_teardown_msi_irq NULL
#define default_teardown_msi_irqs NULL
+#define default_restore_msi_irqs NULL
#endif
#define PCI_DMA_BUS_IS_PHYS (dma_ops->is_phys)
diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h
index 1971e652d24b..cd5208446c2d 100644
--- a/arch/x86/include/asm/x86_init.h
+++ b/arch/x86/include/asm/x86_init.h
@@ -177,6 +177,7 @@ struct x86_msi_ops {
int (*setup_msi_irqs)(struct pci_dev *dev, int nvec, int type);
void (*teardown_msi_irq)(unsigned int irq);
void (*teardown_msi_irqs)(struct pci_dev *dev);
+ void (*restore_msi_irqs)(struct pci_dev *dev, int irq);
};
extern struct x86_init_ops x86_init;
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