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  1. /*
  2.  * Copyright (c) 2005 Jakub Jermar
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. /** @addtogroup sparc64interrupt sparc64
  30.  * @ingroup interrupt
  31.  * @{
  32.  */
  33. /** @file
  34.  */
  35.  
  36. #ifndef KERN_sparc64_INTERRUPT_H_
  37. #define KERN_sparc64_INTERRUPT_H_
  38.  
  39. #include <arch/types.h>
  40. #include <arch/regdef.h>
  41.  
  42. #define IVT_ITEMS   15
  43. #define IVT_FIRST   1
  44.  
  45. /* This needs to be defined for inter-architecture API portability. */
  46. #define VECTOR_TLB_SHOOTDOWN_IPI    0
  47.  
  48. enum {
  49.     IPI_TLB_SHOOTDOWN = VECTOR_TLB_SHOOTDOWN_IPI
  50. };     
  51.  
  52. typedef struct {
  53.     uint64_t    tnpc;
  54.     uint64_t    tpc;
  55.     uint64_t    tstate;
  56. } istate_t;
  57.  
  58. static inline void istate_set_retaddr(istate_t *istate, uintptr_t retaddr)
  59. {
  60.     istate->tpc = retaddr;
  61. }
  62.  
  63. static inline int istate_from_uspace(istate_t *istate)
  64. {
  65.     return !(istate->tstate & TSTATE_PRIV_BIT);
  66. }
  67.  
  68. static inline unative_t istate_get_pc(istate_t *istate)
  69. {
  70.     return istate->tpc;
  71. }
  72.  
  73. #endif
  74.  
  75. /** @}
  76.  */
  77.