Commit f1421db8 authored by Marc Zyngier's avatar Marc Zyngier Committed by Thomas Gleixner

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.
Reviewed-by: default avatarHanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
Cc: <linux-arm-kernel@lists.infradead.org>
Cc: Yijing Wang <wangyijing@huawei.com>
Cc: Ma Jun <majun258@huawei.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Duc Dang <dhdang@apm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Link: http://lkml.kernel.org/r/1438091186-10244-4-git-send-email-marc.zyngier@arm.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent 0380839d
...@@ -715,6 +715,7 @@ struct device_dma_parameters { ...@@ -715,6 +715,7 @@ struct device_dma_parameters {
* @pins: For device pin management. * @pins: For device pin management.
* See Documentation/pinctrl.txt for details. * See Documentation/pinctrl.txt for details.
* @msi_list: Hosts MSI descriptors * @msi_list: Hosts MSI descriptors
* @msi_domain: The generic MSI domain this device is using.
* @numa_node: NUMA node this device is close to. * @numa_node: NUMA node this device is close to.
* @dma_mask: Dma mask (if dma'ble device). * @dma_mask: Dma mask (if dma'ble device).
* @coherent_dma_mask: Like dma_mask, but for alloc_coherent mapping as not all * @coherent_dma_mask: Like dma_mask, but for alloc_coherent mapping as not all
...@@ -775,6 +776,9 @@ struct device { ...@@ -775,6 +776,9 @@ struct device {
struct dev_pm_info power; struct dev_pm_info power;
struct dev_pm_domain *pm_domain; struct dev_pm_domain *pm_domain;
#ifdef CONFIG_GENERIC_MSI_IRQ_DOMAIN
struct irq_domain *msi_domain;
#endif
#ifdef CONFIG_PINCTRL #ifdef CONFIG_PINCTRL
struct dev_pin_info *pins; struct dev_pin_info *pins;
#endif #endif
...@@ -865,6 +869,22 @@ static inline void set_dev_node(struct device *dev, int node) ...@@ -865,6 +869,22 @@ static inline void set_dev_node(struct device *dev, int node)
} }
#endif #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) static inline void *dev_get_drvdata(const struct device *dev)
{ {
return dev->driver_data; return dev->driver_data;
......
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