From: Feng Wu <feng.wu@intel.com>
To: joro@8bytes.org, dwmw2@infradead.org
Cc: tglx@linutronix.de, jiang.liu@linux.intel.com,
iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org,
Feng Wu <feng.wu@intel.com>
Subject: [v5 1/9] iommu: Add new member capability to struct irq_remap_ops
Date: Wed, 20 May 2015 13:15:29 +0800 [thread overview]
Message-ID: <1432098937-19527-2-git-send-email-feng.wu@intel.com> (raw)
In-Reply-To: <1432098937-19527-1-git-send-email-feng.wu@intel.com>
This patch adds a new member capability to struct irq_remap_ops,
this new function ops can be used to check whether some
features are supported, such as VT-d Posted-Interrupts.
Signed-off-by: Feng Wu <feng.wu@intel.com>
Reviewed-by: Jiang Liu <jiang.liu@linux.intel.com>
---
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 78974fb..0953723 100644
--- a/arch/x86/include/asm/irq_remapping.h
+++ b/arch/x86/include/asm/irq_remapping.h
@@ -31,6 +31,10 @@ struct irq_alloc_info;
#ifdef CONFIG_IRQ_REMAP
+enum irq_remap_cap {
+ IRQ_POSTING_CAP = 0,
+};
+
extern void set_irq_remapping_broken(void);
extern int irq_remapping_prepare(void);
extern int irq_remapping_enable(void);
diff --git a/drivers/iommu/irq_remapping.h b/drivers/iommu/irq_remapping.h
index 91d5a11..b6ca30d 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);
--
2.1.0
next prev parent reply other threads:[~2015-05-20 5:24 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-20 5:15 [v5 0/9] Add VT-d Posted-Interrupts support - IOMMU part Feng Wu
2015-05-20 5:15 ` Feng Wu [this message]
2015-05-20 5:15 ` [v5 2/9] iommu, x86: Define new irte structure for VT-d Posted-Interrupts Feng Wu
2015-05-20 5:15 ` [v5 3/9] iommu, x86: Abstract modify_irte() to accept two format of irte Feng Wu
2015-05-20 11:46 ` Thomas Gleixner
2015-05-21 7:01 ` Wu, Feng
2015-05-20 5:15 ` [v5 4/9] iommu, x86: Implement irq_set_vcpu_affinity for intel_ir_chip Feng Wu
2015-05-20 5:15 ` [v5 5/9] iommu, x86: No need to migrating irq for VT-d Posted-Interrupts Feng Wu
2015-05-20 5:15 ` [v5 6/9] iommu, x86: Add cap_pi_support() to detect VT-d PI capability Feng Wu
2015-05-20 5:15 ` [v5 7/9] iommu, x86: Setup Posted-Interrupts capability for Intel iommu Feng Wu
2015-05-20 5:15 ` [v5 8/9] iommu, x86: define irq_remapping_cap() Feng Wu
2015-05-20 5:15 ` [v5 9/9] iommu, x86: Properly handler PI for IOMMU hotplug Feng Wu
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