intr_remapping.h 1.7 KB

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  1. /*
  2. * Copyright (C) 2012 Advanced Micro Devices, Inc.
  3. * Author: Joerg Roedel <joerg.roedel@amd.com>
  4. *
  5. * This program is free software; you can redistribute it and/or modify it
  6. * under the terms of the GNU General Public License version 2 as published
  7. * by the Free Software Foundation.
  8. *
  9. * This program is distributed in the hope that it will be useful,
  10. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  12. * GNU General Public License for more details.
  13. *
  14. * You should have received a copy of the GNU General Public License
  15. * along with this program; if not, write to the Free Software
  16. * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  17. *
  18. * This header file contains stuff that is shared between different interrupt
  19. * remapping drivers but with no need to be visible outside of the IOMMU layer.
  20. */
  21. #ifndef __INTR_REMAPPING_H
  22. #define __INTR_REMAPPING_H
  23. #ifdef CONFIG_IRQ_REMAP
  24. extern int disable_intremap;
  25. extern int disable_sourceid_checking;
  26. extern int no_x2apic_optout;
  27. struct irq_remap_ops {
  28. /* Check whether Interrupt Remapping is supported */
  29. int (*supported)(void);
  30. /* Initializes hardware and makes it ready for remapping interrupts */
  31. int (*hardware_init)(void);
  32. /* Enables the remapping hardware */
  33. int (*hardware_enable)(void);
  34. /* Disables the remapping hardware */
  35. void (*hardware_disable)(void);
  36. /* Reenables the remapping hardware */
  37. int (*hardware_reenable)(int);
  38. /* Enable fault handling */
  39. int (*enable_faulting)(void);
  40. };
  41. extern struct irq_remap_ops intel_irq_remap_ops;
  42. #endif /* CONFIG_IRQ_REMAP */
  43. #endif /* __INTR_REMAPPING_H */