acpi_iort.h 1.5 KB

123456789101112131415161718192021222324252627282930313233343536373839404142
  1. /*
  2. * Copyright (C) 2016, Semihalf
  3. * Author: Tomasz Nowicki <tn@semihalf.com>
  4. *
  5. * This program is free software; you can redistribute it and/or modify it
  6. * under the terms and conditions of the GNU General Public License,
  7. * version 2, as published by the Free Software Foundation.
  8. *
  9. * This program is distributed in the hope it will be useful, but WITHOUT
  10. * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11. * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
  12. * more details.
  13. *
  14. * You should have received a copy of the GNU General Public License along with
  15. * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
  16. * Place - Suite 330, Boston, MA 02111-1307 USA.
  17. */
  18. #ifndef __ACPI_IORT_H__
  19. #define __ACPI_IORT_H__
  20. #include <linux/acpi.h>
  21. #include <linux/fwnode.h>
  22. #include <linux/irqdomain.h>
  23. int iort_register_domain_token(int trans_id, struct fwnode_handle *fw_node);
  24. void iort_deregister_domain_token(int trans_id);
  25. struct fwnode_handle *iort_find_domain_token(int trans_id);
  26. #ifdef CONFIG_ACPI_IORT
  27. void acpi_iort_init(void);
  28. u32 iort_msi_map_rid(struct device *dev, u32 req_id);
  29. struct irq_domain *iort_get_device_domain(struct device *dev, u32 req_id);
  30. #else
  31. static inline void acpi_iort_init(void) { }
  32. static inline u32 iort_msi_map_rid(struct device *dev, u32 req_id)
  33. { return req_id; }
  34. static inline struct irq_domain *iort_get_device_domain(struct device *dev,
  35. u32 req_id)
  36. { return NULL; }
  37. #endif
  38. #endif /* __ACPI_IORT_H__ */