summaryrefslogtreecommitdiff
path: root/include/linux/device.h
diff options
context:
space:
mode:
authorThomas Gleixner <tglx@linutronix.de>2021-12-11 01:18:55 +0300
committerThomas Gleixner <tglx@linutronix.de>2021-12-17 00:16:38 +0300
commit013bd8e543c2c777b586cf033c588ea82bd502db (patch)
treef6177388fe82c29084b7319f24818bc704f86d5d /include/linux/device.h
parent34fff62827b254f8a43633cc878deb04bf11297c (diff)
downloadlinux-013bd8e543c2c777b586cf033c588ea82bd502db.tar.xz
device: Add device:: Msi_data pointer and struct msi_device_data
Create struct msi_device_data and add a pointer of that type to struct dev_msi_info, which is part of struct device. Provide an allocator function which can be invoked from the MSI interrupt allocation code pathes. Add a properties field to the data structure as a first member so the allocation size is not zero bytes. The field will be uses later on. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Michael Kelley <mikelley@microsoft.com> Tested-by: Nishanth Menon <nm@ti.com> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Link: https://lore.kernel.org/r/20211210221813.676660809@linutronix.de
Diffstat (limited to 'include/linux/device.h')
-rw-r--r--include/linux/device.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/device.h b/include/linux/device.h
index f212b7a7b156..f0033cd93631 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -45,6 +45,7 @@ struct iommu_ops;
struct iommu_group;
struct dev_pin_info;
struct dev_iommu;
+struct msi_device_data;
/**
* struct subsys_interface - interfaces to device functions
@@ -374,11 +375,15 @@ struct dev_links_info {
/**
* struct dev_msi_info - Device data related to MSI
* @domain: The MSI interrupt domain associated to the device
+ * @data: Pointer to MSI device data
*/
struct dev_msi_info {
#ifdef CONFIG_GENERIC_MSI_IRQ_DOMAIN
struct irq_domain *domain;
#endif
+#ifdef CONFIG_GENERIC_MSI_IRQ
+ struct msi_device_data *data;
+#endif
};
/**