/* excArchLibP.h - PowerPC exception library private exports *//* Copyright 2003 Wind River Systems, Inc. *//* Definitions for use only by PPC excArchLib.c and syscallArchLib.c *//*modification history--------------------01d,22sep04,pch  Add debug/trace capabilities (under #ifdef)01c,06aug04,pch  SPR's 78780 & 100398: support use of standard exception 		 vectors in MMU and syscall01b,05may04,pch  SPR 92997: use correct symbol name in multiple-include                 protection01a,08Dec03,pch  extracted from excArchLib.c vn 02z*/#ifndef __INCexcArchLibPh#define __INCexcArchLibPh#ifdef __cplusplusextern "C" {#endif#ifndef _ASMLANGUAGE/* * The following typedefs are used within excArchLib.c in the interest * of clarity, to keep from making matters worse than they already are. * (Several existing published API's are defined with types that are just * plain wrong for the PowerPC port, however, we are stuck with them.) */typedef	UINT32	vecTblOffset;	/* Offset in vector table, e.g. _EXC_OFF_* */typedef	char *	codeBase;	/* Base address in normal code space */typedef	char *	vectorBase;	/* Base address in vector execution space */typedef	char *	codePtr;	/* Pointer into normal code space */typedef	char *	vectorPtr;	/* Pointer into vector execution space *//* * Convert a (vectorPtr) into a (codePtr), allowing for any difference * between excVecBase and excVecBaseAltAdrs.  The distinction is critical * during initialization, when vector execution space may not be accessible * because the MMU has not yet been set up. */#define	CODE_PTR_FROM_VECTOR_PTR(vecp)	\	(codePtr)((((vectorPtr)(vecp)) - excVecBase) + excVecBaseAltAdrs)#endif /* _ASMLANGUAGE *//* * Word offsets to the branch instructions in * the exc*ConnectCode arrays in excArchLib.c * * Changes affecting ENT_OFF or ENT_CRT_OFF will require corresponding * changes in excALib.s:excEnt() and excCrtEnt() when calculating the * original vector address from the LR value. */#ifdef	_EXC_OFF_CRTL#   define	ENT_OFF		 6	/* offset for intEnt/excEnt */#   define	ISR_OFF		 9	/* offset for ISR or exc. handler */#   define	EXIT_OFF	 11	/* offset for intExit/excExit */#   define	EXT_ENT_OFF	 7	/* offset for ext intEnt/excEnt */#   define	EXT_ISR_OFF	 12	/* offset for ext ISR or exc handler */#   define	EXT_EXIT_OFF	 19	/* offset for ext intExit/excExit */#   define	EXT_ENT_CRT_OFF	 3	/* offset for ext intEnt/excEnt */#   define	EXT_ISR_CRT_OFF	 8	/* offset for ext ISR or exc handler */#   define	EXT_EXIT_CRT_OFF 15	/* offset for ext intExit/excExit */#   define	ENT_CRT_OFF	 2	/* offset for intEnt/excEnt */#   define	ISR_CRT_OFF	 5	/* offset for ISR or exc. handler */#   define	EXIT_CRT_OFF	 7	/* offset for intCrtExit/excCrtExit */# ifdef LOG_FRAMELESS/* * Logging of "frameless nesting" occurences, used only for testing purposes. * * Each log record consists of one word, with the record type (exit case) in * the most-significant byte and the interrupted vector offset in the least- * significant halfword.  The round-robin log buffer pointer, and the counts * for the three record types, are stored at addresses 0x80-0x8f. * * CRT_COUNT_061C is used when TRAP_DISPATCH_ADDR is also set, for debugging. *//* offsets from address zero */#define LOG_FML_PTR	0x80	/* where to store next log record */#define RIV_COUNT	0x84	/* count of resume-in-vector cases */#define ESF_COUNT	0x88	/* count of copy-ESF cases */#define STM_COUNT	0x8c	/* count of syscall/TLB-miss cases */#define	CRT_COUNT_ENT	0x90	/* count of all critical interrupt entries */#define	CRT_COUNT_EXIT	0x94	/* count of all critical interrupt exits */#define	CRT_COUNT_RESC	0x98	/* calls of reschedule from intCrtExit */#define	CRT_COUNT_061C	0x9c	/* dispatches of PC==0x061C in windALib */#define	CRT_COUNT_RESV	0xa0	/* reserved for future use *//* log record types */#define RIV_TYPE	0x5000	/* resume-in-vector */#define ESF_TYPE	0x6000	/* copy-ESF */#define STM_TYPE	0x7000	/* syscall/TLB-miss *//* size of log record in bytes */#define LOG_FML_SIZE	4/* size of log buffer in bytes, must be a power of 2 */#define LOG_FML_BUF_SIZE	0x1000/* bit number corresponding to buffer size, used to wrap log pointer */#define LOG_FML_BIT	19# endif /* LOG_FRAMELESS */#else	/* _EXC_OFF_CRTL */#   define	ENT_OFF		 2	/* offset for intEnt/excEnt */#   define	ISR_OFF		 5	/* offset for ISR or exc. handler */#   define	EXIT_OFF	 7	/* offset for intExit/excExit */#   define	EXT_ENT_OFF	 3	/* offset for ext intEnt/excEnt */#   define	EXT_ISR_OFF	 8	/* offset for ext ISR or exc handler */#   define	EXT_EXIT_OFF	 15	/* offset for ext intExit/excExit */#endif	/* _EXC_OFF_CRTL */#ifdef	LOG_DISPATCH/* logging of dispatch (rfi/rfci) operations, used only for debugging *//* offsets from address zero */#define LOG_DISP_PTR	0xec	/* where to store next log record */#define LOG_DISP_SAVE	0xe8	/* last LOG_DISP_PTR when logging suspended *//* offsets in log record */#define	LOG_DISP_ID	0x00	/* record type = dispatcher ID */#define	LOG_DISP_LR	0x04	/* LR value (who called dispatcher) */#define	LOG_DISP_SP_IN	0x08	/* SP value when dispatcher called */#define	LOG_DISP_CTX	0x0c	/* address context loaded from */#define	LOG_DISP_PC	0x10	/* PC value to be loaded */#define	LOG_DISP_MSR	0x14	/* MSR value to be loaded */#define	LOG_DISP_SP_OUT	0x18	/* SP value to be loaded */#define	LOG_DISP_NXT_FL	0x1c	/* current value of LOG_FML_PTR *//* size of log record in bytes */#define LOG_DISP_SIZE	32/* size of log buffer in bytes, must be a power of 2 */#define LOG_DISP_BUF_SIZE	0x2000/* bit number corresponding to buffer size, used to wrap log pointer */#define LOG_DISP_BIT	18/* log record types */#define	DISP_WIND	0x01	/* windLoadContext */#define	DISP_CTXL	0x02	/* _sigCtxLoad */#define	DISP_EXCN	0x03	/* excExit */#define	DISP_EXCC	0x04	/* excCrtExit */#define	DISP_INTN	0x05	/* intExit, normal case */#define	DISP_INTP	0x06	/* intExit, preempting (reschedule) */#define	DISP_INTI	0x07	/* intExit, idle case */#define	DISP_INTC	0x08	/* intCrtExit, normal case */#define	DISP_INCR	0x09	/* intCrtExit, frameless RIV case */#define	DISP_INCI	0x0a	/* intCrtExit, idle case */#define	DISP_INCP	0x0b	/* intCrtExit, preempting (reschedule) */#define	DISP_INCF	0x0c	/* intCrtExit, frameless preempting (copyESF) */#define	DISP_DTLB	0x0d	/* data TLB miss handled */#define	DISP_ITLB	0x0e	/* insn TLB miss handled */#define	DISP_RTPI	0x0f	/* rtpUserModeSwitch */#define DISP_SYSC	0x10	/* resume after syscall */#endif	/* LOG_DISPATCH */#ifdef __cplusplus}#endif#endif /* __INCexcArchLibPh */