diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2022-11-25 00:24:33 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2022-12-05 19:21:00 +0100 |
| commit | 4cd5f4403f283766f73749c4c936801f58ffe77a (patch) | |
| tree | 72bef97a90c939da3a4c668bb6229e1033e63401 /include/linux/msi.h | |
| parent | 40742716f294449549884421170ea18356a2abe8 (diff) | |
| download | linux-4cd5f4403f283766f73749c4c936801f58ffe77a.tar.bz2 | |
genirq/msi: Provide new domain id based interfaces for freeing interrupts
Provide two sorts of interfaces to handle the different use cases:
- msi_domain_free_irqs_range():
Handles a caller defined precise range
- msi_domain_free_irqs_all():
Frees all interrupts associated to a domain
The latter is useful for device teardown and to handle the legacy MSI support
which does not have any range information available.
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/20221124230314.337844751@linutronix.de
Diffstat (limited to 'include/linux/msi.h')
| -rw-r--r-- | include/linux/msi.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/msi.h b/include/linux/msi.h index 23172d6354ca..74cb0a93de6f 100644 --- a/include/linux/msi.h +++ b/include/linux/msi.h @@ -498,6 +498,15 @@ int msi_domain_alloc_irqs(struct irq_domain *domain, struct device *dev, int nvec); void msi_domain_free_irqs_descs_locked(struct irq_domain *domain, struct device *dev); void msi_domain_free_irqs(struct irq_domain *domain, struct device *dev); + +void msi_domain_free_irqs_range_locked(struct device *dev, unsigned int domid, + unsigned int first, unsigned int last); +void msi_domain_free_irqs_range(struct device *dev, unsigned int domid, + unsigned int first, unsigned int last); + +void msi_domain_free_irqs_all_locked(struct device *dev, unsigned int domid); +void msi_domain_free_irqs_all(struct device *dev, unsigned int domid); + struct msi_domain_info *msi_get_domain_info(struct irq_domain *domain); struct irq_domain *platform_msi_create_irq_domain(struct fwnode_handle *fwnode, |