23 lines
674 B
C
23 lines
674 B
C
|
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
|
||
|
|
#ifndef __UAPI_CORESIGHT_STM_H_
|
||
|
|
#define __UAPI_CORESIGHT_STM_H_
|
||
|
|
|
||
|
|
#define STM_FLAG_TIMESTAMPED BIT(3)
|
||
|
|
#define STM_FLAG_GUARANTEED BIT(7)
|
||
|
|
|
||
|
|
/*
|
||
|
|
* The CoreSight STM supports guaranteed and invariant timing
|
||
|
|
* transactions. Guaranteed transactions are guaranteed to be
|
||
|
|
* traced, this might involve stalling the bus or system to
|
||
|
|
* ensure the transaction is accepted by the STM. While invariant
|
||
|
|
* timing transactions are not guaranteed to be traced, they
|
||
|
|
* will take an invariant amount of time regardless of the
|
||
|
|
* state of the STM.
|
||
|
|
*/
|
||
|
|
enum {
|
||
|
|
STM_OPTION_GUARANTEED = 0,
|
||
|
|
STM_OPTION_INVARIANT,
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif
|