From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joerg Roedel Subject: [PATCH 12/19] x86, irq: Add data structure to keep AMD specific irq remapping information Date: Tue, 20 Nov 2012 14:12:49 +0100 Message-ID: <1353417176-18945-13-git-send-email-joro@8bytes.org> References: <1353417176-18945-1-git-send-email-joro@8bytes.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1353417176-18945-1-git-send-email-joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" Cc: Suresh Siddha , x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, Yinghai Lu , Sebastian Andrzej Siewior List-Id: iommu@lists.linux-foundation.org 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 Acked-by: Sebastian Andrzej Siewior --- 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