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iommu/vt-d: Convert missing apic.c intr-remapping call to remap_ops

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Convert these calls too:

	* Disable of remapping hardware
	* Reenable of remapping hardware
	* Enable fault handling

With that all of arch/x86/kernel/apic/apic.c is converted to
use the generic intr-remapping interface.

Signed-off-by: Joerg Roedel <[email protected]>
Acked-by: Yinghai Lu <[email protected]>
Cc: David Woodhouse <[email protected]>
Cc: Alex Williamson <[email protected]>
Signed-off-by: Suresh Siddha <[email protected]>
Signed-off-by: Joerg Roedel <[email protected]>
This commit is contained in:
Joerg Roedel 2012-03-30 11:47:01 -07:00
commit 4f3d8b67ad
6 changed files with 47 additions and 23 deletions
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7
drivers/iommu/intel_intr_remapping.c
View file

@ -764,7 +764,7 @@ int __init ir_dev_scope_init(void)
}
rootfs_initcall(ir_dev_scope_init);
void disable_intr_remapping(void)
static void disable_intr_remapping(void)
{
struct dmar_drhd_unit *drhd;
struct intel_iommu *iommu = NULL;
@ -780,7 +780,7 @@ void disable_intr_remapping(void)
}
}
int reenable_intr_remapping(int eim)
static int reenable_intr_remapping(int eim)
{
struct dmar_drhd_unit *drhd;
int setup = 0;
@ -818,4 +818,7 @@ struct irq_remap_ops intel_irq_remap_ops = {
.supported = intel_intr_remapping_supported,
.hardware_init = dmar_table_init,
.hardware_enable = intel_enable_intr_remapping,
.hardware_disable = disable_intr_remapping,
.hardware_reenable = reenable_intr_remapping,
.enable_faulting = enable_drhd_fault_handling,
};

24
drivers/iommu/intr_remapping.c
View file

@ -74,3 +74,27 @@ int __init intr_hardware_enable(void)
return remap_ops->hardware_enable();
}
void intr_hardware_disable(void)
{
if (!remap_ops || !remap_ops->hardware_disable)
return;
remap_ops->hardware_disable();
}
int intr_hardware_reenable(int mode)
{
if (!remap_ops || !remap_ops->hardware_reenable)
return 0;
return remap_ops->hardware_reenable(mode);
}
int __init intr_enable_fault_handling(void)
{
if (!remap_ops || !remap_ops->enable_faulting)
return -ENODEV;
return remap_ops->enable_faulting();
}

9
drivers/iommu/intr_remapping.h
View file

@ -37,6 +37,15 @@ struct irq_remap_ops {
/* Enables the remapping hardware */
int (*hardware_enable)(void);
/* Disables the remapping hardware */
void (*hardware_disable)(void);
/* Reenables the remapping hardware */
int (*hardware_reenable)(int);
/* Enable fault handling */
int (*enable_faulting)(void);
};
extern struct irq_remap_ops intel_irq_remap_ops;