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| author | Thomas Gleixner <tglx@linutronix.de> | 2022-11-25 00:25:54 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2022-12-05 19:21:01 +0100 |
| commit | 4443664f298d1a2cba25a2e48d53b78f4138209b (patch) | |
| tree | c1b0640c06305d2a0d2ac53f6964cd11dd687561 | |
| parent | a80c0aceeaffdb3afe9536fe747480e85841da7f (diff) | |
| download | lwn-4443664f298d1a2cba25a2e48d53b78f4138209b.tar.gz lwn-4443664f298d1a2cba25a2e48d53b78f4138209b.zip | |
genirq/irqdomain: Add irq_domain:: Dev for per device MSI domains
Per device domains require the device pointer of the device which
instantiated the domain for some purposes. Add the pointer to struct
irq_domain. It will be used in the next step which provides the
infrastructure to create per device MSI domains.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20221124232325.618807601@linutronix.de
| -rw-r--r-- | include/linux/irqdomain.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h index a668cc015874..a372086750ca 100644 --- a/include/linux/irqdomain.h +++ b/include/linux/irqdomain.h @@ -132,6 +132,9 @@ struct irq_domain_chip_generic; * @gc: Pointer to a list of generic chips. There is a helper function for * setting up one or more generic chips for interrupt controllers * drivers using the generic chip library which uses this pointer. + * @dev: Pointer to the device which instantiated the irqdomain + * With per device irq domains this is not necessarily the same + * as @pm_dev. * @pm_dev: Pointer to a device that can be utilized for power management * purposes related to the irq domain. * @parent: Pointer to parent irq_domain to support hierarchy irq_domains @@ -155,6 +158,7 @@ struct irq_domain { struct fwnode_handle *fwnode; enum irq_domain_bus_token bus_token; struct irq_domain_chip_generic *gc; + struct device *dev; struct device *pm_dev; #ifdef CONFIG_IRQ_DOMAIN_HIERARCHY struct irq_domain *parent; |