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431 jermar 1
/*
2071 jermar 2
 * Copyright (c) 2005 Jakub Jermar
431 jermar 3
 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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1888 jermar 29
/** @addtogroup ia64interrupt
1702 cejka 30
 * @{
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 */
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/** @file
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 */
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1888 jermar 35
#ifndef KERN_ia64_INTERRUPT_H_
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#define KERN_ia64_INTERRUPT_H_
431 jermar 37
 
470 jermar 38
#include <arch/types.h>
472 jermar 39
#include <arch/register.h>
470 jermar 40
 
1942 jermar 41
/** ia64 has 256 INRs. */
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#define INR_COUNT   256
1265 jermar 43
 
1942 jermar 44
/*
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 * We need to keep this just to compile.
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 * We might eventually move interrupt/ stuff
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 * to genarch.
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 */
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#define IVT_ITEMS       0
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#define IVT_FIRST       0
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472 jermar 52
/** External Interrupt vectors. */
2064 vana 53
#define INTERRUPT_TIMER     255
433 jermar 54
#define INTERRUPT_SPURIOUS  15
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472 jermar 56
/** General Exception codes. */
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#define GE_ILLEGALOP        0
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#define GE_PRIVOP       1
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#define GE_PRIVREG      2
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#define GE_RESREGFLD        3
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#define GE_DISBLDISTRAN     4
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#define GE_ILLEGALDEP       8
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435 jermar 64
#define EOI 0       /**< The actual value doesn't matter. */
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2089 decky 66
typedef struct {
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    uint128_t f2;
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    uint128_t f3;
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    uint128_t f4;
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    uint128_t f5;
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    uint128_t f6;
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    uint128_t f7;
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    uint128_t f8;
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    uint128_t f9;
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    uint128_t f10;
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    uint128_t f11;
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    uint128_t f12;
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    uint128_t f13;
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    uint128_t f14;
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    uint128_t f15;
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    uint128_t f16;
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    uint128_t f17;
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    uint128_t f18;
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    uint128_t f19;
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    uint128_t f20;
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    uint128_t f21;
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    uint128_t f22;
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    uint128_t f23;
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    uint128_t f24;
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    uint128_t f25;
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    uint128_t f26;
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    uint128_t f27;
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    uint128_t f28;
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    uint128_t f29;
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    uint128_t f30;
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    uint128_t f31;
1265 jermar 97
 
1780 jermar 98
    uintptr_t ar_bsp;
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    uintptr_t ar_bspstore;
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    uintptr_t ar_bspstore_new;
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    uint64_t ar_rnat;
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    uint64_t ar_ifs;
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    uint64_t ar_pfs;
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    uint64_t ar_rsc;
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    uintptr_t cr_ifa;
472 jermar 106
    cr_isr_t cr_isr;
1780 jermar 107
    uintptr_t cr_iipa;
921 jermar 108
    psr_t cr_ipsr;
1780 jermar 109
    uintptr_t cr_iip;
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    uint64_t pr;
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    uintptr_t sp;
921 jermar 112
 
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    /*
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     * The following variables are defined only for break_instruction handler.
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     */
1780 jermar 116
    uint64_t in0;
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    uint64_t in1;
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    uint64_t in2;
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    uint64_t in3;
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    uint64_t in4;
2089 decky 121
} istate_t;
431 jermar 122
 
1780 jermar 123
static inline void istate_set_retaddr(istate_t *istate, uintptr_t retaddr)
1288 jermar 124
{
1295 jermar 125
    istate->cr_iip = retaddr;
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    istate->cr_ipsr.ri = 0;     /* return to instruction slot #0 */
1288 jermar 127
}
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1780 jermar 129
static inline unative_t istate_get_pc(istate_t *istate)
1595 palkovsky 130
{
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    return istate->cr_iip;
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}
1888 jermar 133
 
1595 palkovsky 134
static inline int istate_from_uspace(istate_t *istate)
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{
1942 jermar 136
    return (istate->cr_iip) < 0xe000000000000000ULL;
1595 palkovsky 137
}
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470 jermar 139
extern void *ivt;
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1780 jermar 141
extern void general_exception(uint64_t vector, istate_t *istate);
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extern int break_instruction(uint64_t vector, istate_t *istate);
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extern void universal_handler(uint64_t vector, istate_t *istate);
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extern void nop_handler(uint64_t vector, istate_t *istate);
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extern void external_interrupt(uint64_t vector, istate_t *istate);
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extern void disabled_fp_register(uint64_t vector, istate_t *istate);
470 jermar 147
 
431 jermar 148
#endif
1702 cejka 149
 
1888 jermar 150
/** @}
1702 cejka 151
 */