From 6f281923949a4944a7d5625e4f900ec02fefee59 Mon Sep 17 00:00:00 2001 From: Feng Wu Date: Tue, 9 Jun 2015 13:20:28 +0800 Subject: [PATCH] iommu: Add new member capability to struct irq_remap_ops Add a new member 'capability' to struct irq_remap_ops for storing information about available capabilities such as VT-d Posted-Interrupts. Signed-off-by: Feng Wu Reviewed-by: Jiang Liu Reviewed-by: Thomas Gleixner Acked-by: Joerg Roedel Cc: iommu@lists.linux-foundation.org Cc: dwmw2@infradead.org Link: http://lkml.kernel.org/r/1433827237-3382-2-git-send-email-feng.wu@intel.com Signed-off-by: Thomas Gleixner --- arch/x86/include/asm/irq_remapping.h | 4 ++++ drivers/iommu/irq_remapping.h | 3 +++ 2 files changed, 7 insertions(+) diff --git a/arch/x86/include/asm/irq_remapping.h b/arch/x86/include/asm/irq_remapping.h index 78974fbc33b4..8b432dd8f170 100644 --- a/arch/x86/include/asm/irq_remapping.h +++ b/arch/x86/include/asm/irq_remapping.h @@ -29,6 +29,10 @@ struct msi_msg; struct irq_alloc_info; +enum irq_remap_cap { + IRQ_POSTING_CAP = 0, +}; + #ifdef CONFIG_IRQ_REMAP extern void set_irq_remapping_broken(void); diff --git a/drivers/iommu/irq_remapping.h b/drivers/iommu/irq_remapping.h index 91d5a119956a..b6ca30d31986 100644 --- a/drivers/iommu/irq_remapping.h +++ b/drivers/iommu/irq_remapping.h @@ -35,6 +35,9 @@ extern int no_x2apic_optout; extern int irq_remapping_enabled; struct irq_remap_ops { + /* The supported capabilities */ + int capability; + /* Initializes hardware and makes it ready for remapping interrupts */ int (*prepare)(void);