diff options
| author | Joerg Roedel <joro@8bytes.org> | 2012-09-26 12:44:44 +0200 |
|---|---|---|
| committer | Joerg Roedel <joro@8bytes.org> | 2013-01-28 12:17:27 +0100 |
| commit | 819508d302e5b6d6dacb5c3d5e4756091e32cc7d (patch) | |
| tree | 63dee51803e2f5674fd4f6983b9423b9ba65b642 | |
| parent | x86, irq: Move irq_remapping_enabled declaration to iommu code (diff) | |
| download | linux-819508d302e5b6d6dacb5c3d5e4756091e32cc7d.tar.xz linux-819508d302e5b6d6dacb5c3d5e4756091e32cc7d.zip | |
x86, irq: Add data structure to keep AMD specific irq remapping information
Add a data structure to store information the IOMMU driver
can use to get from a 'struct irq_cfg' to the remapping
entry.
Signed-off-by: Joerg Roedel <joro@8bytes.org>
Acked-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
| -rw-r--r-- | arch/x86/include/asm/hw_irq.h | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/arch/x86/include/asm/hw_irq.h b/arch/x86/include/asm/hw_irq.h index eb92a6ed2be7..fc89a2a9b04a 100644 --- a/arch/x86/include/asm/hw_irq.h +++ b/arch/x86/include/asm/hw_irq.h @@ -101,6 +101,7 @@ static inline void set_io_apic_irq_attr(struct io_apic_irq_attr *irq_attr, irq_attr->polarity = polarity; } +/* Intel specific interrupt remapping information */ struct irq_2_iommu { struct intel_iommu *iommu; u16 irte_index; @@ -108,6 +109,12 @@ struct irq_2_iommu { u8 irte_mask; }; +/* AMD specific interrupt remapping information */ +struct irq_2_irte { + u16 devid; /* Device ID for IRTE table */ + u16 index; /* Index into IRTE table*/ +}; + /* * This is performance-critical, we want to do it O(1) * @@ -120,7 +127,10 @@ struct irq_cfg { u8 vector; u8 move_in_progress : 1; #ifdef CONFIG_IRQ_REMAP - struct irq_2_iommu irq_2_iommu; + union { + struct irq_2_iommu irq_2_iommu; + struct irq_2_irte irq_2_irte; + }; #endif }; |