sbi_ecall_ipi.c 817 B

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  1. /*
  2. * SPDX-License-Identifier: BSD-2-Clause
  3. *
  4. * Copyright (c) 2020 Western Digital Corporation or its affiliates.
  5. *
  6. * Authors:
  7. * Anup Patel <anup.patel@wdc.com>
  8. * Atish Patra <atish.patra@wdc.com>
  9. */
  10. #include <sbi/sbi_error.h>
  11. #include <sbi/sbi_ecall.h>
  12. #include <sbi/sbi_ecall_interface.h>
  13. #include <sbi/sbi_trap.h>
  14. #include <sbi/sbi_ipi.h>
  15. static int sbi_ecall_ipi_handler(unsigned long extid, unsigned long funcid,
  16. const struct sbi_trap_regs *regs,
  17. unsigned long *out_val,
  18. struct sbi_trap_info *out_trap)
  19. {
  20. int ret = 0;
  21. if (funcid == SBI_EXT_IPI_SEND_IPI)
  22. ret = sbi_ipi_send_smode(regs->a0, regs->a1);
  23. else
  24. ret = SBI_ENOTSUPP;
  25. return ret;
  26. }
  27. struct sbi_ecall_extension ecall_ipi = {
  28. .extid_start = SBI_EXT_IPI,
  29. .extid_end = SBI_EXT_IPI,
  30. .handle = sbi_ecall_ipi_handler,
  31. };