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genirq: Add more helper functions to support stacked irq_chip

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Add more helper function for stacked irq_chip to just call parent's
function.

Signed-off-by: Yingjoe Chen <[email protected]>
Cc: Rob Herring <[email protected]>
Cc: Pawel Moll <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Matthias Brugger <[email protected]>
Cc: Russell King <[email protected]>
Cc: Jason Cooper <[email protected]>
Cc: Gran Likely <[email protected]>
Cc: Boris BREZILLON <[email protected]>
Cc: <[email protected]>
Cc: Bjorn Helgaas <[email protected]>
Cc: Yijing Wang <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: Sascha Hauer <[email protected]>
Cc: Jiang Liu <[email protected]>
Cc: Marc Zyngier <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>
This commit is contained in:
Yingjoe Chen 2014-11-13 23:37:05 +08:00 • committed by Thomas Gleixner
commit 56e8abab61
2 changed files with 54 additions and 0 deletions
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48
kernel/irq/chip.c
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@ -862,6 +862,54 @@ void irq_chip_ack_parent(struct irq_data *data)
data->chip->irq_ack(data);
}
/**
* irq_chip_mask_parent - Mask the parent interrupt
* @data: Pointer to interrupt specific data
*/
void irq_chip_mask_parent(struct irq_data *data)
{
data = data->parent_data;
data->chip->irq_mask(data);
}
/**
* irq_chip_unmask_parent - Unmask the parent interrupt
* @data: Pointer to interrupt specific data
*/
void irq_chip_unmask_parent(struct irq_data *data)
{
data = data->parent_data;
data->chip->irq_unmask(data);
}
/**
* irq_chip_eoi_parent - Invoke EOI on the parent interrupt
* @data: Pointer to interrupt specific data
*/
void irq_chip_eoi_parent(struct irq_data *data)
{
data = data->parent_data;
data->chip->irq_eoi(data);
}
/**
* irq_chip_set_affinity_parent - Set affinity on the parent interrupt
* @data: Pointer to interrupt specific data
* @dest: The affinity mask to set
* @force: Flag to enforce setting (disable online checks)
*
* Conditinal, as the underlying parent chip might not implement it.
*/
int irq_chip_set_affinity_parent(struct irq_data *data,
const struct cpumask *dest, bool force)
{
data = data->parent_data;
if (data->chip->irq_set_affinity)
return data->chip->irq_set_affinity(data, dest, force);
return -ENOSYS;
}
/**
* irq_chip_retrigger_hierarchy - Retrigger an interrupt in hardware
* @data: Pointer to interrupt specific data