Messages in this thread Patch in this message | | | From | Joerg Roedel <> | Subject | [PATCH 12/19] x86, irq: Add data structure to keep AMD specific irq remapping information | Date | Mon, 20 Aug 2012 15:55:58 +0200 |
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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 <joerg.roedel@amd.com> --- arch/x86/include/asm/hw_irq.h | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/arch/x86/include/asm/hw_irq.h b/arch/x86/include/asm/hw_irq.h index eb92a6e..fc89a2a 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 }; -- 1.7.9.5
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