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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. #ifndef __ia64_INTERRUPT_H__
  30. #define __ia64_INTERRUPT_H__
  31.  
  32. #include <typedefs.h>
  33. #include <arch/types.h>
  34. #include <arch/register.h>
  35.  
  36. #define IRQ_COUNT               257 /* 256 NOT suppotred IRQS*//* TODO */
  37. #define IRQ_KBD                 256 /* One simulated interrupt for ski simulator keyboard*/
  38.  
  39. /** External Interrupt vectors. */
  40. #define INTERRUPT_TIMER     0
  41. #define INTERRUPT_SPURIOUS  15
  42.  
  43. /** General Exception codes. */
  44. #define GE_ILLEGALOP        0
  45. #define GE_PRIVOP       1
  46. #define GE_PRIVREG      2
  47. #define GE_RESREGFLD        3
  48. #define GE_DISBLDISTRAN     4
  49. #define GE_ILLEGALDEP       8
  50.  
  51. #define EOI 0       /**< The actual value doesn't matter. */
  52.  
  53. struct istate {
  54.     __r128 f2;
  55.     __r128 f3;
  56.     __r128 f4;
  57.     __r128 f5;
  58.     __r128 f6;
  59.     __r128 f7;
  60.     __r128 f8;
  61.     __r128 f9;
  62.     __r128 f10;
  63.     __r128 f11;
  64.     __r128 f12;
  65.     __r128 f13;
  66.     __r128 f14;
  67.     __r128 f15;
  68.     __r128 f16;
  69.     __r128 f17;
  70.     __r128 f18;
  71.     __r128 f19;
  72.     __r128 f20;
  73.     __r128 f21;
  74.     __r128 f22;
  75.     __r128 f23;
  76.     __r128 f24;
  77.     __r128 f25;
  78.     __r128 f26;
  79.     __r128 f27;
  80.     __r128 f28;
  81.     __r128 f29;
  82.     __r128 f30;
  83.     __r128 f31;
  84.        
  85.     __address ar_bsp;
  86.     __address ar_bspstore;
  87.     __address ar_bspstore_new;
  88.     __u64 ar_rnat;
  89.     __u64 ar_ifs;
  90.     __u64 ar_pfs;
  91.     __u64 ar_rsc;
  92.     __address cr_ifa;
  93.     cr_isr_t cr_isr;
  94.     __address cr_iipa;
  95.     psr_t cr_ipsr;
  96.     __address cr_iip;
  97.     __u64 pr;
  98.     __address sp;
  99.    
  100.     /*
  101.      * The following variables are defined only for break_instruction handler.
  102.      */
  103.     __u64 in0;
  104.     __u64 in1;
  105.     __u64 in2;
  106.     __u64 in3;
  107.     __u64 in4;
  108. };
  109.  
  110. static inline void istate_set_retaddr(istate_t *istate, __address retaddr)
  111. {
  112.     istate->cr_iip = retaddr;
  113.     istate->cr_ipsr.ri = 0;     /* return to instruction slot #0 */
  114. }
  115.  
  116. extern void *ivt;
  117.  
  118. extern void general_exception(__u64 vector, istate_t *istate);
  119. extern int break_instruction(__u64 vector, istate_t *istate);
  120. extern void universal_handler(__u64 vector, istate_t *istate);
  121. extern void nop_handler(__u64 vector, istate_t *istate);
  122. extern void external_interrupt(__u64 vector, istate_t *istate);
  123. extern void virtual_interrupt(__u64 irq, void *param);
  124. extern void disabled_fp_register(__u64 vector, istate_t *istate);
  125.  
  126.  
  127.  
  128. #endif
  129.