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: / usr / include / misc / uacce /
Filename : uacce.h
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/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
#ifndef UUACCE_H
#define UUACCE_H

#include <linux/types.h>
#include <linux/ioctl.h>

/*
 * UACCE_CMD_START_Q: Start queue
 */
#define UACCE_CMD_START_Q	_IO('W', 0)

/*
 * UACCE_CMD_PUT_Q:
 * User actively stop queue and free queue resource immediately
 * Optimization method since close fd may delay
 */
#define UACCE_CMD_PUT_Q		_IO('W', 1)

/*
 * UACCE Device flags:
 * UACCE_DEV_SVA: Shared Virtual Addresses
 *		  Support PASID
 *		  Support device page faults (PCI PRI or SMMU Stall)
 */
#define UACCE_DEV_SVA		BIT(0)

/**
 * enum uacce_qfrt: queue file region type
 * @UACCE_QFRT_MMIO: device mmio region
 * @UACCE_QFRT_DUS: device user share region
 */
enum uacce_qfrt {
	UACCE_QFRT_MMIO = 0,
	UACCE_QFRT_DUS = 1,
};

#endif