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| author | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2011-12-16 17:38:18 -0500 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2012-01-06 14:02:26 -0800 |
| commit | 76ccc297018d25d55b789bbd508861ef1e2cdb0c (patch) | |
| tree | 27789ff0ea4a77ce4972987a836156255808f703 /arch | |
| parent | fb7ebfe4108e2cdfa2bb88e57148087717463dfa (diff) | |
| download | linux-76ccc297018d25d55b789bbd508861ef1e2cdb0c.tar.gz linux-76ccc297018d25d55b789bbd508861ef1e2cdb0c.tar.bz2 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')
| -rw-r--r-- | arch/x86/include/asm/pci.h | 9 | ||||
| -rw-r--r-- | arch/x86/include/asm/x86_init.h | 1 | ||||
| -rw-r--r-- | arch/x86/kernel/x86_init.c | 1 |
3 files changed, 11 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; diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c index c1d6cd549397..83b05adaadf1 100644 --- a/arch/x86/kernel/x86_init.c +++ b/arch/x86/kernel/x86_init.c @@ -114,4 +114,5 @@ struct x86_msi_ops x86_msi = { .setup_msi_irqs = native_setup_msi_irqs, .teardown_msi_irq = native_teardown_msi_irq, .teardown_msi_irqs = default_teardown_msi_irqs, + .restore_msi_irqs = default_restore_msi_irqs, }; |