Commit-ID: 56e8abab615e0c5858cfb9fa0015a44641762b9d Gitweb: http://git.kernel.org/tip/56e8abab615e0c5858cfb9fa0015a44641762b9d Author: Yingjoe Chen <[email protected]> AuthorDate: Thu, 13 Nov 2014 23:37:05 +0800 Committer: Thomas Gleixner <[email protected]> CommitDate: Sun, 23 Nov 2014 13:01:46 +0100
genirq: Add more helper functions to support stacked irq_chip 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]> --- include/linux/irq.h | 6 ++++++ kernel/irq/chip.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 54 insertions(+) diff --git a/include/linux/irq.h b/include/linux/irq.h index 0adcbbb..fad4bf6 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -446,6 +446,12 @@ extern void handle_nested_irq(unsigned int irq); #ifdef CONFIG_IRQ_DOMAIN_HIERARCHY extern void irq_chip_ack_parent(struct irq_data *data); extern int irq_chip_retrigger_hierarchy(struct irq_data *data); +extern void irq_chip_mask_parent(struct irq_data *data); +extern void irq_chip_unmask_parent(struct irq_data *data); +extern void irq_chip_eoi_parent(struct irq_data *data); +extern int irq_chip_set_affinity_parent(struct irq_data *data, + const struct cpumask *dest, + bool force); #endif /* Handling of unhandled and spurious interrupts: */ diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c index dd1d3c4..47f4c64 100644 --- a/kernel/irq/chip.c +++ b/kernel/irq/chip.c @@ -863,6 +863,54 @@ void irq_chip_ack_parent(struct irq_data *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 * -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
