diff options
| author | Marc Zyngier <marc.zyngier@arm.com> | 2014-12-08 17:52:45 +0000 |
|---|---|---|
| committer | Jon Medhurst <tixy@linaro.org> | 2015-07-22 15:33:56 +0100 |
| commit | f105f7a71a43ec8ded6811c6c198fd157f92429f (patch) | |
| tree | 49e4956a6a941954b6fa780dbecccbaca5336b9e | |
| parent | be38277086a6b4ac8cbda4ac8176f66c2421f2c8 (diff) | |
device core: Introduce per-device MSI domain pointer
As MSI-type features are creeping into non-PCI devices, it is
starting to make sense to give our struct device some form of
support for this, by allowing a pointer to an MSI irq domain to
be set/retrieved.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Jon Medhurst <tixy@linaro.org>
| -rw-r--r-- | include/linux/device.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/include/linux/device.h b/include/linux/device.h index a2b4ea70a946..979182377cf2 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -714,6 +714,7 @@ struct device_dma_parameters { * along with subsystem-level and driver-level callbacks. * @pins: For device pin management. * See Documentation/pinctrl.txt for details. + * @msi_domain: The generic MSI domain this device is using. * @numa_node: NUMA node this device is close to. * @dma_mask: Dma mask (if dma'ble device). * @coherent_dma_mask: Like dma_mask, but for alloc_coherent mapping as not all @@ -774,6 +775,9 @@ struct device { struct dev_pm_info power; struct dev_pm_domain *pm_domain; +#ifdef CONFIG_GENERIC_MSI_IRQ_DOMAIN + struct irq_domain *msi_domain; /* MSI domain device uses */ +#endif #ifdef CONFIG_PINCTRL struct dev_pin_info *pins; #endif @@ -861,6 +865,22 @@ static inline void set_dev_node(struct device *dev, int node) } #endif +static inline struct irq_domain *dev_get_msi_domain(const struct device *dev) +{ +#ifdef CONFIG_GENERIC_MSI_IRQ_DOMAIN + return dev->msi_domain; +#else + return NULL; +#endif +} + +static inline void dev_set_msi_domain(struct device *dev, struct irq_domain *d) +{ +#ifdef CONFIG_GENERIC_MSI_IRQ_DOMAIN + dev->msi_domain = d; +#endif +} + static inline void *dev_get_drvdata(const struct device *dev) { return dev->driver_data; |