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1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2#ifndef __UAPI_CORESIGHT_STM_H_
3#define __UAPI_CORESIGHT_STM_H_
4
5#define STM_FLAG_TIMESTAMPED BIT(3)
6#define STM_FLAG_GUARANTEED BIT(7)
7
8/*
9 * The CoreSight STM supports guaranteed and invariant timing
10 * transactions. Guaranteed transactions are guaranteed to be
11 * traced, this might involve stalling the bus or system to
12 * ensure the transaction is accepted by the STM. While invariant
13 * timing transactions are not guaranteed to be traced, they
14 * will take an invariant amount of time regardless of the
15 * state of the STM.
16 */
17enum {
18 STM_OPTION_GUARANTEED = 0,
19 STM_OPTION_INVARIANT,
20};
21
22#endif