/* * Copyright (c) 1999-2004, Apple Computer, Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. 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. * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of * its contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "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 APPLE OR ITS CONTRIBUTORS 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. */ /* Copyright (c) 1991 NeXT Computer, Inc. All rights reserved. * * File: mach/m88k/thread_status.h * Author: Mike DeMoney, NeXT Computer, Inc. * * This include file defines the per-thread state * for NeXT 88K-based products. * * HISTORY * 23-Jan-91 Mike DeMoney (mike@next.com) * Created. * * FIXME: * All of these types should be pulled from architecture. * Solve possible conflicting types problem for implementations * by making user define an implementation (e.g. #define __M88110__) * to get a implementation specific features. * * Put fp envelope stuff in mach/m88k/m88110_fpee.h. */ #ifndef _MACH_M88K_THREAD_STATE_ #define _MACH_M88K_THREAD_STATE_ #import <architecture/m88k/fp_regs.h> #import <architecture/m88k/reg_help.h> /************************************************************************** * Data Typedefs used by thread_getstatus() and thread_setstatus() * * NOTE: FP control and status regs described in <mach/m88k/fp_regs.h> * **************************************************************************/ #define M88K_THREAD_STATE_GRF (1) // general registers #define M88K_THREAD_STATE_XRF (2) // extended and fp registers #define M88K_THREAD_STATE_USER (3) // non-architectural user state #define M88110_THREAD_STATE_IMPL (4) // 88110 impl specific #define M88K_THREAD_STATE_MAXFLAVOR (M88110_THREAD_STATE_IMPL) /* * m88k_thread_state_grf -- basic thread state for NeXT 88K-based products */ typedef struct _m88k_thread_state_grf { unsigned r1; // rpc: return pc, caller-saved unsigned r2; // a0: argument 0, caller-saved unsigned r3; // a1 unsigned r4; // a2 unsigned r5; // a3 unsigned r6; // a4 unsigned r7; // a5 unsigned r8; // a6 unsigned r9; // a7 unsigned r10; // t0: temporary, caller-saved unsigned r11; // t1 unsigned r12; // t2: struct return ptr, unsigned r13; // t3 unsigned r14; // s0: saved, callee-saved unsigned r15; // s1 unsigned r16; // s2 unsigned r17; // s3 unsigned r18; // s4 unsigned r19; // s5 unsigned r20; // s6 unsigned r21; // s7 unsigned r22; // s8 unsigned r23; // s9 unsigned r24; // s10 unsigned r25; // s11 unsigned r26; // t4 unsigned r27; // at: temp, used by asm macros unsigned r28; // lk0: reserved for link editor unsigned r29; // lk1 unsigned r30; // fp: frame ptr, callee-saved unsigned r31; // sp: stack ptr, callee-saved unsigned xip; // executing instruction pointer unsigned xip_in_bd; // non-zero => xip in branch delay slot /* * nip is only valid if xip_in_bd is TRUE */ unsigned nip; // next instruction pointer } m88k_thread_state_grf_t; #define M88K_THREAD_STATE_GRF_COUNT \ (sizeof(m88k_thread_state_grf_t)/sizeof(int)) /* * m88k_thread_state_xrf -- extended register file contents and floating point * control registers for NeXT 88K-based products. */ typedef struct _m88k_thread_state_xrf { m88k_xrf_t x1; // caller-saved m88k_xrf_t x2; m88k_xrf_t x3; m88k_xrf_t x4; m88k_xrf_t x5; m88k_xrf_t x6; m88k_xrf_t x7; m88k_xrf_t x8; m88k_xrf_t x9; m88k_xrf_t x10; m88k_xrf_t x11; m88k_xrf_t x12; m88k_xrf_t x13; m88k_xrf_t x14; m88k_xrf_t x15; m88k_xrf_t x16; m88k_xrf_t x17; m88k_xrf_t x18; m88k_xrf_t x19; m88k_xrf_t x20; m88k_xrf_t x21; m88k_xrf_t x22; // callee-saved m88k_xrf_t x23; m88k_xrf_t x24; m88k_xrf_t x25; m88k_xrf_t x26; m88k_xrf_t x27; m88k_xrf_t x28; m88k_xrf_t x29; m88k_xrf_t x30; // reserved m88k_xrf_t x31; m88k_fpsr_t fpsr; // fp status, fcr62 m88k_fpcr_t fpcr; // fp control, fcr63 } m88k_thread_state_xrf_t; #define M88K_THREAD_STATE_XRF_COUNT \ (sizeof(m88k_thread_state_xrf_t)/sizeof(int)) typedef struct _m88k_thread_state_user { int user; // user register (for cthreads) } m88k_thread_state_user_t; #define M88K_THREAD_STATE_USER_COUNT \ (sizeof(m88k_thread_state_user_t)/sizeof(int)) /* * Motorola 88110 specific state * (Can't count on this being in all m88k implementations.) */ #define M88110_N_DATA_BP 2 // 88110 supports 2 data bp's /* * Data Breakpoint Address Match Mask -- actually indicates don't * care bits in addr */ typedef enum { M88110_MATCH_BYTE = 0, M88110_MATCH_SHORT = 0x1, M88110_MATCH_WORD = 0x3, M88110_MATCH_DOUBLE = 0x7, M88110_MATCH_QUAD = 0xf, M88110_MATCH_32 = 0x1f, M88110_MATCH_64 = 0x3f, M88110_MATCH_128 = 0x7f, M88110_MATCH_256 = 0xff, M88110_MATCH_512 = 0x1ff, M88110_MATCH_1024 = 0x3ff, M88110_MATCH_2048 = 0x7ff, M88110_MATCH_4096 = 0xfff } m88110_match_t; /* * Data Breakpoint Control Word */ typedef struct { unsigned :BITS_WIDTH(31,29); unsigned rw:BIT_WIDTH(28); // 1 => read access unsigned rwm:BIT_WIDTH(27); // 0 => rw is don't care unsigned :BITS_WIDTH(26,13); m88110_match_t addr_match:BITS_WIDTH(12,1); // addr(12,1) don't cares unsigned v:BIT_WIDTH(0); } m88110_bp_ctrl_t; /* * A complete Data Breakpoint spec */ typedef struct { unsigned addr; // data address m88110_bp_ctrl_t ctrl; } m88110_data_bp_t; /* * m88110_psr_t -- 88110 Processor Status Register * System prohibits modification of supr, le, se, sgn_imd, sm and mxm_dis * bits for user threads. */ typedef struct { unsigned supr:BIT_WIDTH(31); unsigned le:BIT_WIDTH(30); // little endian mode unsigned se:BIT_WIDTH(29); // serial exec mode unsigned c:BIT_WIDTH(28); // carry unsigned :BIT_WIDTH(27); unsigned sgn_imd:BIT_WIDTH(26); // signed immediates unsigned sm:BIT_WIDTH(25); // serialize mem refs unsigned :BIT_WIDTH(24); unsigned trace:BIT_WIDTH(23); unsigned :BITS_WIDTH(22,5); unsigned sfu2dis:BIT_WIDTH(4); // gpu (sfu2) disable unsigned sfu1dis:BIT_WIDTH(3); // fpu (sfu1) disable unsigned mxm_dis:BIT_WIDTH(2); // misaligned dis unsigned :BITS_WIDTH(1,0); } m88110_psr_t; /* * Information for IEEE floating point user trap handlers */ typedef enum { M88110_IRESULT_SIZE_NONE = 0, // no intermediate result M88110_IRESULT_SIZE_SINGLE = 1, // single precision result M88110_IRESULT_SIZE_DOUBLE = 2, // double precision result M88110_IRESULT_SIZE_EXTENDED = 3 // double extended result } m88110_iresult_size_t; typedef struct { unsigned :BITS_WIDTH(31,16); // unused m88110_iresult_size_t iresult_size:BITS_WIDTH(15,14); // size of iresult unsigned :BITS_WIDTH(13,9); // unused unsigned sfu1_disabled:BIT_WIDTH(8); // sfu disabled unsigned int:BIT_WIDTH(7); // invalid int conv unsigned unimp:BIT_WIDTH(6); // unimp ctrl reg unsigned priv:BIT_WIDTH(5); // priv violation unsigned efinv:BIT_WIDTH(4); // IEEE EFINV unsigned efdvz:BIT_WIDTH(3); // IEEE EFDVZ unsigned efunf:BIT_WIDTH(2); // IEEE EFUNF unsigned efovf:BIT_WIDTH(1); // IEEE EFOVF unsigned efinx:BIT_WIDTH(0); // IEEE EFINX } m88110_fp_trap_status_t; /* * m88110_thread_state_impl -- 88110 implementation-specific * control registers for NeXT 88K-based products. */ typedef struct _m88110_thread_state_impl { m88110_data_bp_t data_bp[M88110_N_DATA_BP]; /* * Certain of the 88110 psr bits may be modified */ m88110_psr_t psr; // processor status /* * IEEE floating point user trap information. Read only. * (Only valid immediately after an EXC_ARITHMETIC * exception with code EXC_M88K_SFU1_EXCP. Trap * handlers must determine operation, source and * destination registers by fetching instruction at * exip.) */ m88k_xrf_t intermediate_result; m88110_fp_trap_status_t fp_trap_status; } m88110_thread_state_impl_t; #define M88110_THREAD_STATE_IMPL_COUNT \ (sizeof(m88110_thread_state_impl_t)/sizeof(int)) #endif _MACH_M88K_THREAD_STATE_