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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef LINUX_DEVICE_ID_DFL_H
#define LINUX_DEVICE_ID_DFL_H
#ifdef __KERNEL__
#include <linux/types.h>
typedef unsigned long kernel_ulong_t;
#endif
/*
* DFL (Device Feature List)
*
* DFL defines a linked list of feature headers within the device MMIO space to
* provide an extensible way of adding features. Software can walk through these
* predefined data structures to enumerate features. It is now used in the FPGA.
* See Documentation/fpga/dfl.rst for more information.
*
* The dfl bus type is introduced to match the individual feature devices (dfl
* devices) for specific dfl drivers.
*/
/**
* struct dfl_device_id - dfl device identifier
* @type: DFL FIU type of the device. See enum dfl_id_type.
* @feature_id: feature identifier local to its DFL FIU type.
* @driver_data: driver specific data.
*/
struct dfl_device_id {
__u16 type;
__u16 feature_id;
kernel_ulong_t driver_data;
};
#endif /* ifndef LINUX_DEVICE_ID_DFL_H */
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