include/uapi/misc/uacce/uacce.h

Source file repositories/reference/linux-study-clean/include/uapi/misc/uacce/uacce.h

File Facts

System
Linux kernel
Corpus path
include/uapi/misc/uacce/uacce.h
Extension
.h
Size
806 bytes
Lines
39
Domain
Repository Root And Misc
Bucket
include
Inferred role
Repository Root And Misc: implementation source
Status
source implementation candidate

Why This File Exists

Top-level or miscellaneous repository surface. Use this as map coverage unless a later manual pass promotes the file into a deeper subsystem dossier.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef _UAPIUUACCE_H
#define _UAPIUUACCE_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

Annotation

Implementation Notes