lkml.org 
[lkml]   [2014]   [Dec]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[v2 02/25] iommu: Add new member capability to struct irq_remap_ops
Date
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 | 4 ++++
2 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/arch/x86/include/asm/irq_remapping.h b/arch/x86/include/asm/irq_remapping.h
index 6ba2431..f67ae08 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 setup_irq_remapping_ops(void);
extern int irq_remapping_supported(void);
extern void set_irq_remapping_broken(void);
diff --git a/drivers/iommu/irq_remapping.h b/drivers/iommu/irq_remapping.h
index 4bd791d..2d991b2 100644
--- a/drivers/iommu/irq_remapping.h
+++ b/drivers/iommu/irq_remapping.h
@@ -28,6 +28,7 @@ struct irq_data;
struct msi_msg;
struct irq_domain;
struct irq_alloc_info;
+enum irq_remap_cap;

extern int disable_irq_remap;
extern int irq_remap_broken;
@@ -39,6 +40,9 @@ struct irq_remap_ops {
/* Check whether Interrupt Remapping is supported */
int (*supported)(void);

+ /* Check some capability is supported */
+ bool (*capability)(enum irq_remap_cap);
+
/* Initializes hardware and makes it ready for remapping interrupts */
int (*prepare)(void);

--
1.7.1


\
 
 \ /
  Last update: 2014-12-03 09:21    [W:0.206 / U:0.292 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site