misc/uacce/uacce.h

0001 /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
0002 #ifndef _UAPIUUACCE_H
0003 #define _UAPIUUACCE_H
0004
0005 #include <linux/types.h>
0006 #include <linux/ioctl.h>
0007
0008 /*
0009  * UACCE_CMD_START_Q: Start queue
0010  */
0011 #define UACCE_CMD_START_Q   _IO('W', 0)
0012
0013 /*
0014  * UACCE_CMD_PUT_Q:
0015  * User actively stop queue and free queue resource immediately
0016  * Optimization method since close fd may delay
0017  */
0018 #define UACCE_CMD_PUT_Q     _IO('W', 1)
0019
0020 /*
0021  * UACCE Device flags:
0022  * UACCE_DEV_SVA: Shared Virtual Addresses
0023  *        Support PASID
0024  *        Support device page faults (PCI PRI or SMMU Stall)
0025  */
0026 #define UACCE_DEV_SVA       BIT(0)
0027
0028 /**
0029  * enum uacce_qfrt: queue file region type
0030  * @UACCE_QFRT_MMIO: device mmio region
0031  * @UACCE_QFRT_DUS: device user share region
0032  */
0033 enum uacce_qfrt {
0034     UACCE_QFRT_MMIO = 0,
0035     UACCE_QFRT_DUS = 1,
0036 };
0037
0038 #endif