diff options
| author | Thomas Gleixner <[email protected]> | 2022-11-25 00:24:14 +0100 |
|---|---|---|
| committer | Thomas Gleixner <[email protected]> | 2022-12-05 19:20:58 +0100 |
| commit | 6b6941f6653ec8017e3822b55bb9eae245f0ed99 (patch) | |
| tree | 528b7993314c59149a253001765bb3b1899e7b53 | |
| parent | 6a9fc4190ca23fcf327de666e1a98dbdcdd2d210 (diff) | |
genirq/msi: Create msi_api.h
Create a API header for MSI specific functions which are relevant to device
drivers.
Signed-off-by: Thomas Gleixner <[email protected]>
Reviewed-by: Jason Gunthorpe <[email protected]>
Reviewed-by: Kevin Tian <[email protected]>
Acked-by: Marc Zyngier <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
| -rw-r--r-- | include/linux/msi.h | 6 | ||||
| -rw-r--r-- | include/linux/msi_api.h | 15 |
2 files changed, 19 insertions, 2 deletions
diff --git a/include/linux/msi.h b/include/linux/msi.h index 2d87e000bd45..9f72494dcc3e 100644 --- a/include/linux/msi.h +++ b/include/linux/msi.h @@ -13,11 +13,14 @@ * * Regular device drivers have no business with any of these functions and * especially storing MSI descriptor pointers in random code is considered - * abuse. The only function which is relevant for drivers is msi_get_virq(). + * abuse. + * + * Device driver relevant functions are available in <linux/msi_api.h> */ #include <linux/irqdomain_defs.h> #include <linux/cpumask.h> +#include <linux/msi_api.h> #include <linux/xarray.h> #include <linux/mutex.h> #include <linux/list.h> @@ -188,7 +191,6 @@ struct msi_device_data { int msi_setup_device_data(struct device *dev); -unsigned int msi_get_virq(struct device *dev, unsigned int index); void msi_lock_descs(struct device *dev); void msi_unlock_descs(struct device *dev); diff --git a/include/linux/msi_api.h b/include/linux/msi_api.h new file mode 100644 index 000000000000..57d27cfcde2d --- /dev/null +++ b/include/linux/msi_api.h @@ -0,0 +1,15 @@ +/* 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; + +unsigned int msi_get_virq(struct device *dev, unsigned int index); + +#endif |