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Diffstat (limited to 'libgloss/bfin/include/sys/exception.h')
| -rw-r--r-- | libgloss/bfin/include/sys/exception.h | 261 |
1 files changed, 0 insertions, 261 deletions
diff --git a/libgloss/bfin/include/sys/exception.h b/libgloss/bfin/include/sys/exception.h deleted file mode 100644 index d1a531aa7..000000000 --- a/libgloss/bfin/include/sys/exception.h +++ /dev/null @@ -1,261 +0,0 @@ -/* - * The authors hereby grant permission to use, copy, modify, distribute, - * and license this software and its documentation for any purpose, provided - * that existing copyright notices are retained in all copies and that this - * notice is included verbatim in any distributions. No written agreement, - * license, or royalty fee is required for any of the authorized uses. - * Modifications to this software may be copyrighted by their authors - * and need not follow the licensing terms described here, provided that - * the new terms are clearly indicated on the first page of each file where - * they apply. - */ - -#pragma once -#ifndef __NO_BUILTIN -#pragma system_header /* exception.h */ -#endif -/************************************************************************ - * - * exception.h - * - * (c) Copyright 2001-2008 Analog Devices, Inc. All rights reserved. - * - ************************************************************************/ - -#ifndef _EXCEPTION_H -#define _EXCEPTION_H - -#ifdef _MISRA_RULES -#pragma diag(push) -#pragma diag(suppress:misra_rule_5_6) -#pragma diag(suppress:misra_rule_5_7) -#pragma diag(suppress:misra_rule_6_3) -#pragma diag(suppress:misra_rule_19_4) -#pragma diag(suppress:misra_rule_19_7) -#pragma diag(suppress:misra_rule_19_10) -#pragma diag(suppress:misra_rule_19_13) -#endif /* _MISRA_RULES */ - - - -/* -** Definitions for user-friendly interrupt handling. -*/ - -/* -** Memory-Mapped Registers (MMRs) - these record what causes address -** exceptions. -*/ - -#define EX_DATA_FAULT_STATUS 0xFFE00008 -#define EX_DATA_FAULT_ADDR 0xFFE0000C -#define EX_CODE_FAULT_STATUS 0xFFE01008 -#define EX_CODE_FAULT_ADDR 0xFFE0100C - -/* -** Event Vector Table -*/ - -#define EX_EVENT_VECTOR_TABLE 0xFFE02000 - -/* -** Meaning of the various bits in EXCAUSE field in SEQSTAT register. -*/ - -#define EX_BITS 0x3F /* All EXCAUSE bits */ -#define EX_TYPE 0x30 /* The bits which define the type */ -#define EX_DEBUG 0x10 /* If set, is a debug exception type */ -#define EX_SYS 0x20 /* If set, is a system exception type */ - /* If neither set, is from EXCPT instr */ - -#define EX_IS_DEBUG_EXCEPTION(E) (((E)&EX_TYPE)==EX_DEBUG) -#define EX_IS_SYSTEM_EXCEPTION(E) (((E)&EX_TYPE)==EX_SYS) -#define EX_IS_USER_EXCEPTION(E) (((E)&EX_TYPE)==0) - -/* -** Service exceptions continue from the instruction after the one -** that raised the exception. -** Error exceptions restart the instruction that raised the exception. -*/ - -#define EX_IS_SERVICE_EXCEPTION(E) (!EX_IS_SYSTEM_EXCEPTION(E)) -#define EX_IS_ERROR_EXCEPTION(E) (EX_IS_SYSTEM_EXCEPTION(E)) - -#define EX_DB_SINGLE_STEP 0x10 /* Processor is single-stepping */ -#define EX_DB_EMTRCOVRFLW 0x11 /* Emulation Trace buffer overflowed */ - -#define EX_SYS_UNDEFINSTR 0x21 /* Undefined instruction */ -#define EX_SYS_ILLINSTRC 0x22 /* Illegal instruction combination */ -#define EX_SYS_DCPLBPROT 0x23 /* Data CPLB Protection violation */ -#define EX_SYS_DALIGN 0x24 /* Data access misaligned address violation */ -#define EX_SYS_UNRECEVT 0x25 /* Unrecoverable event */ -#define EX_SYS_DCPLBMISS 0x26 /* Data access CPLB Miss */ -#define EX_SYS_DCPLBMHIT 0x27 /* Data access CPLB Multiple Hits */ -#define EX_SYS_EMWATCHPT 0x28 /* Emulation watch point match */ -#define EX_SYS_CACCESSEX 0x29 /* Code fetch access exception */ -#define EX_SYS_CALIGN 0x2A /* Attempted misaligned instr cache fetch */ -#define EX_SYS_CCPLBPROT 0x2B /* Code fetch CPLB Protection */ -#define EX_SYS_CCPLBMISS 0x2C /* CPLB miss on an instruction fetch */ -#define EX_SYS_CCPLBMHIT 0x2D /* Code fetch CPLB Multiple Hits */ -#define EX_SYS_ILLUSESUP 0x2E /* Illegal use of Supervisor Resource */ - -/* -** Meaning of the various bits in HWERRCAUSE in SEQSTAT -*/ - -#define EX_HWBITS (0x1F<<14) /* bits 18:14 */ - -#if !defined(__ADSPLPBLACKFIN__) -#define EX_HW_NOMEM1 (0x16<<14) -#define EX_HW_NOMEM2 (0x17<<14) -#else -#define EX_HW_SYSMMR (0x02<<14) -#define EX_HW_EXTMEM (0x03<<14) -#endif -#define EX_HW_DMAHIT (0x01<<14) -#define EX_HW_PERFMON (0x12<<14) -#define EX_HW_RAISE (0x18<<14) - -/* -** Meaning of the bits in DATA_FAULT_STATUS and CODE_FAULT_STATUS -*/ - -#define EX_DATA_FAULT_ILLADDR (1<<19) /* non-existent memory */ -#define EX_DATA_FAULT_DAG (1<<18) /* 0=>DAG0, 1=>DAG1 */ -#define EX_DATA_FAULT_USERSUPV (1<<17) /* 0=>user mode, 1=> supervisor */ -#define EX_DATA_FAULT_READWRITE (1<<16) /* 0=>read, 1=>write */ -#define EX_DATA_FAULT_CPLB 0xFFFF /* 0=>CPLB0, 1=>CPLB1, etc */ - -#define EX_CODE_FAULT_ILLADDR (1<<19) /* non-existent memory */ -#define EX_CODE_FAULT_USERSUPV (1<<17) /* 0=>user mode, 1=> supervisor */ -#define EX_CODE_FAULT_CPLB 0xFFFF /* 0=>CPLB0, 1=>CPLB1, etc */ - -/* -** The kinds of interrupt that can occur. These are also the -** indices into the Event Vector Table. -*/ - -#ifdef __cplusplus -extern "C" { -#endif - -typedef enum { - ik_err=-1, - ik_emulation, - ik_reset, - ik_nmi, - ik_exception, - ik_global_int_enable, - ik_hardware_err, - ik_timer, - ik_ivg7, - ik_ivg8, - ik_ivg9, - ik_ivg10, - ik_ivg11, - ik_ivg12, - ik_ivg13, - ik_ivg14, - ik_ivg15, - num_interrupt_kind -} interrupt_kind; - -/* -** Structure for recording details of an exception or interrupt -** that has occurred. -*/ - -typedef struct { - interrupt_kind kind; /* whether interrupt, exception, etc. */ - int value; /* interrupt number, exception type, etc. */ - void *pc; /* PC at point where exception occurred */ - void *addr; /* if an address faulted, which one. */ - unsigned status; /* if an address faulted, why. */ -} interrupt_info; - -/* -** Macro for defining an interrupt routine -*/ - -typedef void (*ex_handler_fn)(); - -#define EX_HANDLER(KIND,NAME) \ -_Pragma(#KIND) \ -void NAME (void) - -#define EX_HANDLER_PROTO(KIND, NAME) EX_HANDLER(KIND, NAME) - -#define EX_INTERRUPT_HANDLER(NAME) EX_HANDLER(interrupt,NAME) -#define EX_EXCEPTION_HANDLER(NAME) EX_HANDLER(exception,NAME) -#define EX_NMI_HANDLER(NAME) EX_HANDLER(nmi,NAME) -#define EX_REENTRANT_HANDLER(NAME) \ -_Pragma("interrupt_reentrant") \ -EX_HANDLER(interrupt,NAME) - -/* -** A convenience function for setting up the interrupt_info contents. -** Must be called from immediately with the interrupt handler. -*/ - -void get_interrupt_info(interrupt_kind int_kind, interrupt_info *int_info); - -/* -** Diagnostics function for reporting unexpected events. -*/ - -void _ex_report_event(interrupt_info *int_info); - -/* -** Register an interrupt handler within the EVT. -** Return previous value if there was one. -*/ -ex_handler_fn register_handler(interrupt_kind int_kind, ex_handler_fn handler); - -/* -** Some magic values for registering default and null handlers. -*/ - -#define EX_INT_DEFAULT ((ex_handler_fn)-1) -#define EX_INT_IGNORE ((ex_handler_fn)0) - -/* -** Extended function to register an interrupt handler within the EVT. -** Returns the old handler. -** -** If enabled == EX_INT_ALWAYS_ENABLE, install fn (if fn != EX_INT_IGNORE -** and fn != EX_INT_DISABLE), and then enable the interrupt in IMASK then -** return -** -** If fn == EX_INT_IGNORE, disable the interrupt -** If fn == EX_INT_DEFAULT, delete the handler entry in the EVT and disable -** the interrupt in IMASK -** Otherwise, install the new interrupt handler. Then, -** If enabled == EX_INT_DISABLE, disable the interrupt in IMASK -** If enabled == EX_INT_ENABLE, enable the interrupt in IMASK -** otherwise leave the interrupt status alone. -*/ -ex_handler_fn register_handler_ex(interrupt_kind kind, ex_handler_fn fn, - int enable); - -/* Constants for the enabled parameter of register_handler_ex */ -#define EX_INT_DISABLE 0 -#define EX_INT_ENABLE 1 -#define EX_INT_KEEP_IMASK -1 -#define EX_INT_ALWAYS_ENABLE 2 - -/* -** Allow the user to raise exceptions from C. -*/ - -int raise_interrupt(interrupt_kind kind, int which, - int cmd, int arg1, int arg2); - -#ifdef __cplusplus - } /* extern "C" */ -#endif - -#ifdef _MISRA_RULES -#pragma diag(pop) -#endif /* _MISRA_RULES */ - -#endif /* _EXCEPTION_H */ |