interrupt.h

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00001 /*
00002  * Copyright (C) 2005 Jakub Jermar
00003  * All rights reserved.
00004  *
00005  * Redistribution and use in source and binary forms, with or without
00006  * modification, are permitted provided that the following conditions
00007  * are met:
00008  *
00009  * - Redistributions of source code must retain the above copyright
00010  *   notice, this list of conditions and the following disclaimer.
00011  * - Redistributions in binary form must reproduce the above copyright
00012  *   notice, this list of conditions and the following disclaimer in the
00013  *   documentation and/or other materials provided with the distribution.
00014  * - The name of the author may not be used to endorse or promote products
00015  *   derived from this software without specific prior written permission.
00016  *
00017  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
00018  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
00019  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
00020  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
00021  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
00022  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
00023  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
00024  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
00025  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
00026  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00027  */
00028 
00035 #ifndef __ia64_INTERRUPT_H__
00036 #define __ia64_INTERRUPT_H__
00037 
00038 #include <typedefs.h>
00039 #include <arch/types.h>
00040 #include <arch/register.h>
00041 
00042 #define IRQ_COUNT               257 /* 256 NOT suppotred IRQS*//* TODO */
00043 #define IRQ_KBD                 256 /* One simulated interrupt for ski simulator keyboard*/
00044 
00046 #define INTERRUPT_TIMER         0
00047 #define INTERRUPT_SPURIOUS      15
00048 
00050 #define GE_ILLEGALOP            0
00051 #define GE_PRIVOP               1
00052 #define GE_PRIVREG              2
00053 #define GE_RESREGFLD            3
00054 #define GE_DISBLDISTRAN         4
00055 #define GE_ILLEGALDEP           8
00056 
00057 #define EOI     0               
00059 struct istate {
00060         __r128 f2;
00061         __r128 f3;
00062         __r128 f4;
00063         __r128 f5;
00064         __r128 f6;
00065         __r128 f7;
00066         __r128 f8;
00067         __r128 f9;
00068         __r128 f10;
00069         __r128 f11;
00070         __r128 f12;
00071         __r128 f13;
00072         __r128 f14;
00073         __r128 f15;
00074         __r128 f16;
00075         __r128 f17;
00076         __r128 f18;
00077         __r128 f19;
00078         __r128 f20;
00079         __r128 f21;
00080         __r128 f22;
00081         __r128 f23;
00082         __r128 f24;
00083         __r128 f25;
00084         __r128 f26;
00085         __r128 f27;
00086         __r128 f28;
00087         __r128 f29;
00088         __r128 f30;
00089         __r128 f31;
00090                 
00091         __address ar_bsp;
00092         __address ar_bspstore;
00093         __address ar_bspstore_new;
00094         __u64 ar_rnat;
00095         __u64 ar_ifs;
00096         __u64 ar_pfs;
00097         __u64 ar_rsc;
00098         __address cr_ifa;
00099         cr_isr_t cr_isr;
00100         __address cr_iipa;
00101         psr_t cr_ipsr;
00102         __address cr_iip;
00103         __u64 pr;
00104         __address sp;
00105         
00106         /*
00107          * The following variables are defined only for break_instruction handler. 
00108          */
00109         __u64 in0;
00110         __u64 in1;
00111         __u64 in2;
00112         __u64 in3;
00113         __u64 in4;
00114 };
00115 
00116 static inline void istate_set_retaddr(istate_t *istate, __address retaddr)
00117 {
00118         istate->cr_iip = retaddr;
00119         istate->cr_ipsr.ri = 0;         /* return to instruction slot #0 */
00120 }
00121 
00122 static inline __native istate_get_pc(istate_t *istate)
00123 {
00124         return istate->cr_iip;
00125 }
00126 #include <panic.h>
00127 static inline int istate_from_uspace(istate_t *istate)
00128 {
00129         return (istate->cr_iip)<0xe000000000000000ULL;
00130 }
00131 
00132 extern void *ivt;
00133 
00134 extern void general_exception(__u64 vector, istate_t *istate);
00135 extern int break_instruction(__u64 vector, istate_t *istate);
00136 extern void universal_handler(__u64 vector, istate_t *istate);
00137 extern void nop_handler(__u64 vector, istate_t *istate);
00138 extern void external_interrupt(__u64 vector, istate_t *istate);
00139 extern void virtual_interrupt(__u64 irq, void *param);
00140 extern void disabled_fp_register(__u64 vector, istate_t *istate);
00141 
00142 
00143 
00144 #endif
00145 

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