coresight-stm.h 706 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_GUARANTEED _BITUL(7)
  7. /*
  8. * The CoreSight STM supports guaranteed and invariant timing
  9. * transactions. Guaranteed transactions are guaranteed to be
  10. * traced, this might involve stalling the bus or system to
  11. * ensure the transaction is accepted by the STM. While invariant
  12. * timing transactions are not guaranteed to be traced, they
  13. * will take an invariant amount of time regardless of the
  14. * state of the STM.
  15. */
  16. enum {
  17. STM_OPTION_GUARANTEED = 0,
  18. STM_OPTION_INVARIANT,
  19. };
  20. #endif