Commit-ID: 819508d302e5b6d6dacb5c3d5e4756091e32cc7d
Gitweb: http://git.kernel.org/tip/819508d302e5b6d6dacb5c3d5e4756091e32cc7d
Author: Joerg Roedel <joro@xxxxxxxxxx>
AuthorDate: Wed, 26 Sep 2012 12:44:44 +0200
Committer: Joerg Roedel <joro@xxxxxxxxxx>
CommitDate: Mon, 28 Jan 2013 12:17:27 +0100
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@xxxxxxxxxx>
Acked-by: Sebastian Andrzej Siewior <sebastian@xxxxxxxxxxxxx>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
---
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
};
--
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