coresight-stm.h 747 B

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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. #include <linux/const.h>
  5. #define STM_FLAG_TIMESTAMPED _BITUL(3)
  6. #define STM_FLAG_MARKED _BITUL(4)
  7. #define STM_FLAG_GUARANTEED _BITUL(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. */
  17. enum {
  18. STM_OPTION_GUARANTEED = 0,
  19. STM_OPTION_INVARIANT,
  20. };
  21. #endif