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genirq/msi: Provide msi_device_populate/destroy_sysfs()

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Add new allocation functions which can be activated by domain info
flags. They store the groups pointer in struct msi_device_data.

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/20211210221813.988659194@linutronix.de
This commit is contained in:
Thomas Gleixner 2021-12-10 23:19:03 +01:00
parent 686073e9f8
commit bf6e054e0e
2 changed files with 44 additions and 2 deletions
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4
include/linux/msi.h
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@ -56,6 +56,8 @@ struct irq_data;
struct msi_desc;
struct pci_dev;
struct platform_msi_priv_data;
struct attribute_group;
void __get_cached_msi_msg(struct msi_desc *entry, struct msi_msg *msg);
#ifdef CONFIG_GENERIC_MSI_IRQ
void get_cached_msi_msg(unsigned int irq, struct msi_msg *msg);
@ -174,9 +176,11 @@ struct msi_desc {
/**
* msi_device_data - MSI per device data
* @properties: MSI properties which are interesting to drivers
* @attrs: Pointer to the sysfs attribute group
*/
struct msi_device_data {
unsigned long properties;
const struct attribute_group **attrs;
};
int msi_setup_device_data(struct device *dev);