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/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
/* Copyright IBM Corp 2019 */
#ifndef _UAPI_LINUX_ASPEED_XDMA_H_
#define _UAPI_LINUX_ASPEED_XDMA_H_
#include <linux/ioctl.h>
#include <linux/types.h>
#define __ASPEED_XDMA_IOCTL_MAGIC 0xb7
#define ASPEED_XDMA_IOCTL_RESET _IO(__ASPEED_XDMA_IOCTL_MAGIC, 0)
/*
* aspeed_xdma_direction
*
* ASPEED_XDMA_DIRECTION_DOWNSTREAM: transfers data from the host to the BMC
*
* ASPEED_XDMA_DIRECTION_UPSTREAM: transfers data from the BMC to the host
*/
enum aspeed_xdma_direction {
ASPEED_XDMA_DIRECTION_DOWNSTREAM = 0,
ASPEED_XDMA_DIRECTION_UPSTREAM,
};
/*
* aspeed_xdma_op
*
* host_addr: the DMA address on the host side, typically configured by PCI
* subsystem
*
* len: the size of the transfer in bytes
*
* direction: an enumerator indicating the direction of the DMA operation; see
* enum aspeed_xdma_direction
*/
struct aspeed_xdma_op {
__u64 host_addr;
__u32 len;
__u32 direction;
};
#endif /* _UAPI_LINUX_ASPEED_XDMA_H_ */
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