From: Feng Wu <feng.wu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
To: joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org,
dwmw2-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org
Cc: tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org,
jiang.liu-VuQAYsv1563Yd54FQh9/CA@public.gmane.org,
iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: [v8 1/9] iommu: Add new member capability to struct irq_remap_ops
Date: Wed, 27 May 2015 12:05:36 +0800 [thread overview]
Message-ID: <1432699544-17444-2-git-send-email-feng.wu@intel.com> (raw)
In-Reply-To: <1432699544-17444-1-git-send-email-feng.wu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
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-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Reviewed-by: Jiang Liu <jiang.liu-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
---
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:[~2015-05-27 4:05 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-27 4:05 [v8 0/9] Add VT-d Posted-Interrupts support - IOMMU part Feng Wu
[not found] ` <1432699544-17444-1-git-send-email-feng.wu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2015-05-27 4:05 ` Feng Wu [this message]
2015-05-27 4:05 ` [v8 2/9] iommu: dmar: Extend struct irte for VT-d Posted-Interrupts Feng Wu
2015-05-27 4:05 ` [v8 3/9] iommu, x86: Implement irq_set_vcpu_affinity for intel_ir_chip Feng Wu
[not found] ` <1432699544-17444-4-git-send-email-feng.wu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2015-06-02 13:59 ` Thomas Gleixner
2015-06-03 1:05 ` Wu, Feng
2015-05-27 4:05 ` [v8 4/9] iommu, x86: Save the mode (posted or remapped) of an IRTE Feng Wu
2015-05-27 4:05 ` [v8 5/9] iommu, x86: No need to migrating irq for VT-d Posted-Interrupts Feng Wu
2015-05-27 4:05 ` [v8 6/9] iommu, x86: Add cap_pi_support() to detect VT-d PI capability Feng Wu
2015-05-27 4:05 ` [v8 7/9] iommu, x86: Setup Posted-Interrupts capability for Intel iommu Feng Wu
2015-05-27 4:05 ` [v8 8/9] iommu, x86: define irq_remapping_cap() Feng Wu
2015-05-27 4:05 ` [v8 9/9] iommu, x86: Properly handler PI for IOMMU hotplug Feng Wu
2015-06-01 2:18 ` [v8 0/9] Add VT-d Posted-Interrupts support - IOMMU part Wu, Feng
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