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/*
* (C) COPYRIGHT 2020 ARM Limited. All rights reserved.
*
* This program is free software and is provided to you under the terms of the
* GNU General Public License version 2 as published by the Free Software
* Foundation, and any use by you of this program is subject to the terms
* of such GNU licence.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, you can access it online at
* http://www.gnu.org/licenses/gpl-2.0.html.
*
* SPDX-License-Identifier: GPL-2.0-only
*/
#ifndef ETHOSU_H
#define ETHOSU_H
/****************************************************************************
* Includes
****************************************************************************/
#include <linux/ioctl.h>
#include <linux/types.h>
/****************************************************************************
* Defines
****************************************************************************/
#define ETHOSU_IOCTL_BASE 0x01
#define ETHOSU_IO(nr) _IO(ETHOSU_IOCTL_BASE, nr)
#define ETHOSU_IOR(nr, type) _IOR(ETHOSU_IOCTL_BASE, nr, type)
#define ETHOSU_IOW(nr, type) _IOW(ETHOSU_IOCTL_BASE, nr, type)
#define ETHOSU_IOWR(nr, type) _IOWR(ETHOSU_IOCTL_BASE, nr, type)
#define ETHOSU_IOCTL_PING ETHOSU_IO(0x00)
#define ETHOSU_IOCTL_BUFFER_CREATE ETHOSU_IOR(0x10, \
struct ethosu_uapi_buffer_create)
#define ETHOSU_IOCTL_BUFFER_SET ETHOSU_IOR(0x11, \
struct ethosu_uapi_buffer)
#define ETHOSU_IOCTL_BUFFER_GET ETHOSU_IOW(0x12, \
struct ethosu_uapi_buffer)
#define ETHOSU_IOCTL_NETWORK_CREATE ETHOSU_IOR(0x20, \
struct ethosu_uapi_network_create)
#define ETHOSU_IOCTL_INFERENCE_CREATE ETHOSU_IOR(0x30, \
struct ethosu_uapi_inference_create)
#define ETHOSU_IOCTL_INFERENCE_STATUS ETHOSU_IO(0x31)
/* Maximum number of IFM/OFM file descriptors per network */
#define ETHOSU_FD_MAX 16
/****************************************************************************
* Types
****************************************************************************/
/**
* enum ethosu_uapi_status - Status
*/
enum ethosu_uapi_status {
ETHOSU_UAPI_STATUS_OK,
ETHOSU_UAPI_STATUS_ERROR
};
/**
* struct ethosu_uapi_buffer_create - Create buffer request
* @capacity: Maximum capacity of the buffer
*/
struct ethosu_uapi_buffer_create {
__u32 capacity;
};
/**
* struct ethosu_uapi_buffer - Buffer descriptor
* @offset: Offset to where the data starts
* @size: Size of the data
*
* 'offset + size' must not exceed the capacity of the buffer.
*/
struct ethosu_uapi_buffer {
__u32 offset;
__u32 size;
};
/**
* struct ethosu_uapi_network_create - Create network request
* @fd: Buffer file descriptor
*/
struct ethosu_uapi_network_create {
__u32 fd;
};
/**
* struct ethosu_uapi_inference_create - Create network request
* @ifm_count: Number of IFM file descriptors
* @ifm_fd: IFM buffer file descriptors
* @ofm_count: Number of OFM file descriptors
* @ofm_fd: OFM buffer file descriptors
*/
struct ethosu_uapi_inference_create {
__u32 ifm_count;
__u32 ifm_fd[ETHOSU_FD_MAX];
__u32 ofm_count;
__u32 ofm_fd[ETHOSU_FD_MAX];
};
#endif
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