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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef LINUX_MSI_API_H
#define LINUX_MSI_API_H
/*
* APIs which are relevant for device driver code for allocating and
* freeing MSI interrupts and querying the associations between
* hardware/software MSI indices and the Linux interrupt number.
*/
struct device;
/*
* Per device interrupt domain related constants.
*/
enum msi_domain_ids {
MSI_DEFAULT_DOMAIN,
MSI_MAX_DEVICE_IRQDOMAINS,
};
unsigned int msi_domain_get_virq(struct device *dev, unsigned int domid, unsigned int index);
/**
* msi_get_virq - Lookup the Linux interrupt number for a MSI index on the default interrupt domain
* @dev: Device for which the lookup happens
* @index: The MSI index to lookup
*
* Return: The Linux interrupt number on success (> 0), 0 if not found
*/
static inline unsigned int msi_get_virq(struct device *dev, unsigned int index)
{
return msi_domain_get_virq(dev, MSI_DEFAULT_DOMAIN, index);
}
#endif
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