| 0,0 → 1,127 |
|---|
| /* |
| * 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 __mips32_EXCEPTION_H__ |
| #define __mips32_EXCEPTION_H__ |
| |
| #ifndef __mips32_TYPES_H__ |
| # include <arch/types.h> |
| #endif |
| |
| #include <typedefs.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 |
| |
| struct istate { |
| 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 s0; |
| uint32_t s1; |
| uint32_t s2; |
| uint32_t s3; |
| uint32_t s4; |
| uint32_t s5; |
| uint32_t s6; |
| uint32_t s7; |
| uint32_t t8; |
| uint32_t t9; |
| uint32_t gp; |
| uint32_t sp; |
| uint32_t s8; |
| 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 */ |
| }; |
| |
| 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 |
| |
| /** @} |
| */ |