Tingwei Zhang
99eb40f95d
STP_PACKET_MARKED is not supported by STM currently. Add STM_FLAG_MARKED to support marked packet in STM. Bug: 160464759 Link: https://lore.kernel.org/linux-arm-kernel/20200726023950.3804-1-tingwei@codeaurora.org/ Signed-off-by: Tingwei Zhang <tingwei@codeaurora.org> Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org> Change-Id: Ibe402e35d12e17f33c6ef006f88ab470791bb770
26 lines
747 B
C
26 lines
747 B
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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#ifndef __UAPI_CORESIGHT_STM_H_
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#define __UAPI_CORESIGHT_STM_H_
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#include <linux/const.h>
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#define STM_FLAG_TIMESTAMPED _BITUL(3)
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#define STM_FLAG_MARKED _BITUL(4)
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#define STM_FLAG_GUARANTEED _BITUL(7)
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/*
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* The CoreSight STM supports guaranteed and invariant timing
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* transactions. Guaranteed transactions are guaranteed to be
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* traced, this might involve stalling the bus or system to
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* ensure the transaction is accepted by the STM. While invariant
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* timing transactions are not guaranteed to be traced, they
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* will take an invariant amount of time regardless of the
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* state of the STM.
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*/
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enum {
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STM_OPTION_GUARANTEED = 0,
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STM_OPTION_INVARIANT,
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};
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#endif
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