0,0 → 1,114 |
/* |
* Copyright (c) 2003-2004 Jakub Jermar |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
|
/** @addtogroup mips32 |
* @{ |
*/ |
/** @file |
*/ |
|
#ifndef KERN_mips32_EXCEPTION_H_ |
#define KERN_mips32_EXCEPTION_H_ |
|
#include <arch/types.h> |
#include <arch/cp0.h> |
|
#define EXC_Int 0 |
#define EXC_Mod 1 |
#define EXC_TLBL 2 |
#define EXC_TLBS 3 |
#define EXC_AdEL 4 |
#define EXC_AdES 5 |
#define EXC_IBE 6 |
#define EXC_DBE 7 |
#define EXC_Sys 8 |
#define EXC_Bp 9 |
#define EXC_RI 10 |
#define EXC_CpU 11 |
#define EXC_Ov 12 |
#define EXC_Tr 13 |
#define EXC_VCEI 14 |
#define EXC_FPE 15 |
#define EXC_WATCH 23 |
#define EXC_VCED 31 |
|
typedef struct { |
uint32_t at; |
uint32_t v0; |
uint32_t v1; |
uint32_t a0; |
uint32_t a1; |
uint32_t a2; |
uint32_t a3; |
uint32_t t0; |
uint32_t t1; |
uint32_t t2; |
uint32_t t3; |
uint32_t t4; |
uint32_t t5; |
uint32_t t6; |
uint32_t t7; |
uint32_t t8; |
uint32_t t9; |
uint32_t gp; |
uint32_t sp; |
uint32_t ra; |
|
uint32_t lo; |
uint32_t hi; |
|
uint32_t status; /* cp0_status */ |
uint32_t epc; /* cp0_epc */ |
uint32_t k1; /* We use it as thread-local pointer */ |
} istate_t; |
|
static inline void istate_set_retaddr(istate_t *istate, uintptr_t retaddr) |
{ |
istate->epc = retaddr; |
} |
|
/** Return true if exception happened while in userspace */ |
static inline int istate_from_uspace(istate_t *istate) |
{ |
return istate->status & cp0_status_um_bit; |
} |
static inline unative_t istate_get_pc(istate_t *istate) |
{ |
return istate->epc; |
} |
|
extern void exception(istate_t *istate); |
extern void tlb_refill_entry(void); |
extern void exception_entry(void); |
extern void cache_error_entry(void); |
extern void exception_init(void); |
|
#endif |
|
/** @} |
*/ |