765 lines
26 KiB
C
765 lines
26 KiB
C
/* $NetBSD: cpuregs.h,v 1.50 2002/03/13 13:18:58 simonb Exp $ */
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/*
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Ralph Campbell and Rick Macklem.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)machConst.h 8.1 (Berkeley) 6/10/93
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*
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* machConst.h --
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*
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* Machine dependent constants.
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*
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* Copyright (C) 1989 Digital Equipment Corporation.
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* Permission to use, copy, modify, and distribute this software and
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* its documentation for any purpose and without fee is hereby granted,
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* provided that the above copyright notice appears in all copies.
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* Digital Equipment Corporation makes no representations about the
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* suitability of this software for any purpose. It is provided "as is"
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* without express or implied warranty.
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*
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* from: Header: /sprite/src/kernel/mach/ds3100.md/RCS/machConst.h,
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* v 9.2 89/10/21 15:55:22 jhh Exp SPRITE (DECWRL)
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* from: Header: /sprite/src/kernel/mach/ds3100.md/RCS/machAddrs.h,
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* v 1.2 89/08/15 18:28:21 rab Exp SPRITE (DECWRL)
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* from: Header: /sprite/src/kernel/vm/ds3100.md/RCS/vmPmaxConst.h,
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* v 9.1 89/09/18 17:33:00 shirriff Exp SPRITE (DECWRL)
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*/
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#ifndef _MIPS_CPUREGS_H_
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#define _MIPS_CPUREGS_H_
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#include <sys/cdefs.h> /* For __CONCAT() */
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/*
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* Address space.
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* 32-bit mips CPUS partition their 32-bit address space into four segments:
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*
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* kuseg 0x00000000 - 0x7fffffff User virtual mem, mapped
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* kseg0 0x80000000 - 0x9fffffff Physical memory, cached, unmapped
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* kseg1 0xa0000000 - 0xbfffffff Physical memory, uncached, unmapped
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* kseg2 0xc0000000 - 0xffffffff kernel-virtual, mapped
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*
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* mips1 physical memory is limited to 512Mbytes, which is
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* doubly mapped in kseg0 (cached) and kseg1 (uncached.)
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* Caching of mapped addresses is controlled by bits in the TLB entry.
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*/
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#define MIPS_KUSEG_START 0x0
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#define MIPS_KSEG0_START 0x80000000
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#define MIPS_KSEG1_START 0xa0000000
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#define MIPS_KSEG2_START 0xc0000000
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#define MIPS_MAX_MEM_ADDR 0xbe000000
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#define MIPS_RESERVED_ADDR 0xbfc80000
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#define MIPS_PHYS_MASK 0x1fffffff
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#define MIPS_KSEG0_TO_PHYS(x) ((unsigned)(x) & MIPS_PHYS_MASK)
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#define MIPS_PHYS_TO_KSEG0(x) ((unsigned)(x) | MIPS_KSEG0_START)
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#define MIPS_KSEG1_TO_PHYS(x) ((unsigned)(x) & MIPS_PHYS_MASK)
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#define MIPS_PHYS_TO_KSEG1(x) ((unsigned)(x) | MIPS_KSEG1_START)
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/* Map virtual address to index in mips3 r4k virtually-indexed cache */
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#define MIPS3_VA_TO_CINDEX(x) \
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((unsigned)(x) & 0xffffff | MIPS_KSEG0_START)
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#define MIPS_PHYS_TO_XKPHYS(cca,x) \
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((0x2ULL << 62) | ((unsigned long long)(cca) << 59) | (x))
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#define MIPS_XKPHYS_TO_PHYS(x) ((x) & 0x0effffffffffffffULL)
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/* CPU dependent mtc0 hazard hook */
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#define COP0_SYNC /* nothing */
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/*
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* The bits in the cause register.
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*
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* Bits common to r3000 and r4000:
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*
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* MIPS_CR_BR_DELAY Exception happened in branch delay slot.
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* MIPS_CR_COP_ERR Coprocessor error.
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* MIPS_CR_IP Interrupt pending bits defined below.
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* (same meaning as in CAUSE register).
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* MIPS_CR_EXC_CODE The exception type (see exception codes below).
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*
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* Differences:
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* r3k has 4 bits of execption type, r4k has 5 bits.
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*/
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#define MIPS_CR_BR_DELAY 0x80000000
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#define MIPS_CR_COP_ERR 0x30000000
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#define MIPS1_CR_EXC_CODE 0x0000003C /* four bits */
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#define MIPS3_CR_EXC_CODE 0x0000007C /* five bits */
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#define MIPS_CR_IP 0x0000FF00
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#define MIPS_CR_EXC_CODE_SHIFT 2
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/*
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* The bits in the status register. All bits are active when set to 1.
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*
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* R3000 status register fields:
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* MIPS_SR_CO_USABILITY Control the usability of the four coprocessors.
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* MIPS_SR_BOOT_EXC_VEC Use alternate exception vectors.
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* MIPS_SR_TLB_SHUTDOWN TLB disabled.
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*
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* MIPS_SR_INT_IE Master (current) interrupt enable bit.
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*
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* Differences:
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* r3k has cache control is via frobbing SR register bits, whereas the
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* r4k cache control is via explicit instructions.
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* r3k has a 3-entry stack of kernel/user bits, whereas the
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* r4k has kernel/supervisor/user.
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*/
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#define MIPS_SR_COP_USABILITY 0xf0000000
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#define MIPS_SR_COP_0_BIT 0x10000000
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#define MIPS_SR_COP_1_BIT 0x20000000
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/* r4k and r3k differences, see below */
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#define MIPS_SR_BOOT_EXC_VEC 0x00400000
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#define MIPS_SR_TLB_SHUTDOWN 0x00200000
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/* r4k and r3k differences, see below */
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#define MIPS_SR_INT_IE 0x00000001
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/*#define MIPS_SR_MBZ 0x0f8000c0*/ /* Never used, true for r3k */
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/*#define MIPS_SR_INT_MASK 0x0000ff00*/
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/*
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* The R2000/R3000-specific status register bit definitions.
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* all bits are active when set to 1.
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*
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* MIPS_SR_PARITY_ERR Parity error.
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* MIPS_SR_CACHE_MISS Most recent D-cache load resulted in a miss.
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* MIPS_SR_PARITY_ZERO Zero replaces outgoing parity bits.
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* MIPS_SR_SWAP_CACHES Swap I-cache and D-cache.
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* MIPS_SR_ISOL_CACHES Isolate D-cache from main memory.
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* Interrupt enable bits defined below.
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* MIPS_SR_KU_OLD Old kernel/user mode bit. 1 => user mode.
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* MIPS_SR_INT_ENA_OLD Old interrupt enable bit.
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* MIPS_SR_KU_PREV Previous kernel/user mode bit. 1 => user mode.
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* MIPS_SR_INT_ENA_PREV Previous interrupt enable bit.
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* MIPS_SR_KU_CUR Current kernel/user mode bit. 1 => user mode.
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*/
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#define MIPS1_PARITY_ERR 0x00100000
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#define MIPS1_CACHE_MISS 0x00080000
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#define MIPS1_PARITY_ZERO 0x00040000
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#define MIPS1_SWAP_CACHES 0x00020000
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#define MIPS1_ISOL_CACHES 0x00010000
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#define MIPS1_SR_KU_OLD 0x00000020 /* 2nd stacked KU/IE*/
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#define MIPS1_SR_INT_ENA_OLD 0x00000010 /* 2nd stacked KU/IE*/
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#define MIPS1_SR_KU_PREV 0x00000008 /* 1st stacked KU/IE*/
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#define MIPS1_SR_INT_ENA_PREV 0x00000004 /* 1st stacked KU/IE*/
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#define MIPS1_SR_KU_CUR 0x00000002 /* current KU */
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/* backwards compatibility */
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#define MIPS_SR_PARITY_ERR MIPS1_PARITY_ERR
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#define MIPS_SR_CACHE_MISS MIPS1_CACHE_MISS
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#define MIPS_SR_PARITY_ZERO MIPS1_PARITY_ZERO
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#define MIPS_SR_SWAP_CACHES MIPS1_SWAP_CACHES
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#define MIPS_SR_ISOL_CACHES MIPS1_ISOL_CACHES
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#define MIPS_SR_KU_OLD MIPS1_SR_KU_OLD
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#define MIPS_SR_INT_ENA_OLD MIPS1_SR_INT_ENA_OLD
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#define MIPS_SR_KU_PREV MIPS1_SR_KU_PREV
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#define MIPS_SR_KU_CUR MIPS1_SR_KU_CUR
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#define MIPS_SR_INT_ENA_PREV MIPS1_SR_INT_ENA_PREV
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/*
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* R4000 status register bit definitons,
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* where different from r2000/r3000.
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*/
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#define MIPS3_SR_XX 0x80000000
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#define MIPS3_SR_RP 0x08000000
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#define MIPS3_SR_FR_32 0x04000000
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#define MIPS3_SR_RE 0x02000000
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#define MIPS3_SR_DIAG_DL 0x01000000 /* QED 52xx */
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#define MIPS3_SR_DIAG_IL 0x00800000 /* QED 52xx */
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#define MIPS3_SR_DIAG_BEV 0x00400000
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#define MIPS3_SR_SOFT_RESET 0x00100000
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#define MIPS3_SR_EIE 0x00100000 /* TX79/R5900 */
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#define MIPS3_SR_DIAG_CH 0x00040000
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#define MIPS3_SR_DIAG_CE 0x00020000
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#define MIPS3_SR_DIAG_PE 0x00010000
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#define MIPS3_SR_KX 0x00000080
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#define MIPS3_SR_SX 0x00000040
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#define MIPS3_SR_UX 0x00000020
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#define MIPS3_SR_KSU_MASK 0x00000018
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#define MIPS3_SR_KSU_USER 0x00000010
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#define MIPS3_SR_KSU_SUPER 0x00000008
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#define MIPS3_SR_KSU_KERNEL 0x00000000
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#define MIPS3_SR_ERL 0x00000004
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#define MIPS3_SR_EXL 0x00000002
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#ifdef MIPS3_5900
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#undef MIPS_SR_INT_IE
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#define MIPS_SR_INT_IE 0x00010001 /* XXX */
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#endif
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#define MIPS_SR_SOFT_RESET MIPS3_SR_SOFT_RESET
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#define MIPS_SR_DIAG_CH MIPS3_SR_DIAG_CH
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#define MIPS_SR_DIAG_CE MIPS3_SR_DIAG_CE
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#define MIPS_SR_DIAG_PE MIPS3_SR_DIAG_PE
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#define MIPS_SR_KX MIPS3_SR_KX
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#define MIPS_SR_SX MIPS3_SR_SX
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#define MIPS_SR_UX MIPS3_SR_UX
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#define MIPS_SR_KSU_MASK MIPS3_SR_KSU_MASK
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#define MIPS_SR_KSU_USER MIPS3_SR_KSU_USER
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#define MIPS_SR_KSU_SUPER MIPS3_SR_KSU_SUPER
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#define MIPS_SR_KSU_KERNEL MIPS3_SR_KSU_KERNEL
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#define MIPS_SR_ERL MIPS3_SR_ERL
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#define MIPS_SR_EXL MIPS3_SR_EXL
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/*
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* The interrupt masks.
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* If a bit in the mask is 1 then the interrupt is enabled (or pending).
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*/
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#define MIPS_INT_MASK 0xff00
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#define MIPS_INT_MASK_5 0x8000
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#define MIPS_INT_MASK_4 0x4000
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#define MIPS_INT_MASK_3 0x2000
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#define MIPS_INT_MASK_2 0x1000
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#define MIPS_INT_MASK_1 0x0800
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#define MIPS_INT_MASK_0 0x0400
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#define MIPS_HARD_INT_MASK 0xfc00
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#define MIPS_SOFT_INT_MASK_1 0x0200
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#define MIPS_SOFT_INT_MASK_0 0x0100
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/*
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* mips3 CPUs have on-chip timer at INT_MASK_5. Each platform can
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* choose to enable this interrupt.
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*/
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#if defined(MIPS3_ENABLE_CLOCK_INTR)
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#define MIPS3_INT_MASK MIPS_INT_MASK
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#define MIPS3_HARD_INT_MASK MIPS_HARD_INT_MASK
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#else
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#define MIPS3_INT_MASK (MIPS_INT_MASK & ~MIPS_INT_MASK_5)
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#define MIPS3_HARD_INT_MASK (MIPS_HARD_INT_MASK & ~MIPS_INT_MASK_5)
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#endif
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/*
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* The bits in the context register.
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*/
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#define MIPS1_CNTXT_PTE_BASE 0xFFE00000
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#define MIPS1_CNTXT_BAD_VPN 0x001FFFFC
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#define MIPS3_CNTXT_PTE_BASE 0xFF800000
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#define MIPS3_CNTXT_BAD_VPN2 0x007FFFF0
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/*
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* The bits in the MIPS3 config register.
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*
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* bit 0..5: R/W, Bit 6..31: R/O
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*/
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/* kseg0 coherency algorithm - see MIPS3_TLB_ATTR values */
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#define MIPS3_CONFIG_K0_MASK 0x00000007
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/*
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* R/W Update on Store Conditional
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* 0: Store Conditional uses coherency algorithm specified by TLB
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* 1: Store Conditional uses cacheable coherent update on write
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*/
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#define MIPS3_CONFIG_CU 0x00000008
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#define MIPS3_CONFIG_DB 0x00000010 /* Primary D-cache line size */
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#define MIPS3_CONFIG_IB 0x00000020 /* Primary I-cache line size */
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#define MIPS3_CONFIG_CACHE_L1_LSIZE(config, bit) \
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(((config) & (bit)) ? 32 : 16)
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#define MIPS3_CONFIG_DC_MASK 0x000001c0 /* Primary D-cache size */
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#define MIPS3_CONFIG_DC_SHIFT 6
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#define MIPS3_CONFIG_IC_MASK 0x00000e00 /* Primary I-cache size */
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#define MIPS3_CONFIG_IC_SHIFT 9
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#define MIPS3_CONFIG_C_DEFBASE 0x1000 /* default base 2^12 */
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#ifdef MIPS3_4100 /* VR4100 core */
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/* XXXCDC: THIS MIPS3_4100 SPECIAL CASE SHOULD GO AWAY */
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#define MIPS3_CONFIG_CS 0x00001000 /* cache size mode indication*/
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#define MIPS3_CONFIG_CACHE_SIZE(config, mask, dummy, shift) \
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((((config)&MIPS3_CONFIG_CS)?0x400:0x1000) << (((config) & (mask)) >> (shift)))
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#else
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#define MIPS3_CONFIG_CACHE_SIZE(config, mask, base, shift) \
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((base) << (((config) & (mask)) >> (shift)))
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#endif
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/* Block ordering: 0: sequential, 1: sub-block */
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#define MIPS3_CONFIG_EB 0x00002000
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/* ECC mode - 0: ECC mode, 1: parity mode */
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#define MIPS3_CONFIG_EM 0x00004000
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/* BigEndianMem - 0: kernel and memory are little endian, 1: big endian */
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#define MIPS3_CONFIG_BE 0x00008000
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/* Dirty Shared coherency state - 0: enabled, 1: disabled */
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#define MIPS3_CONFIG_SM 0x00010000
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/* Secondary Cache - 0: present, 1: not present */
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#define MIPS3_CONFIG_SC 0x00020000
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/* System Port width - 0: 64-bit, 1: 32-bit (QED RM523x), 2,3: reserved */
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#define MIPS3_CONFIG_EW_MASK 0x000c0000
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#define MIPS3_CONFIG_EW_SHIFT 18
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/* Secondary Cache port width - 0: 128-bit data path to S-cache, 1: reserved */
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#define MIPS3_CONFIG_SW 0x00100000
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/* Split Secondary Cache Mode - 0: I/D mixed, 1: I/D separated by SCAddr(17) */
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#define MIPS3_CONFIG_SS 0x00200000
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/* Secondary Cache line size */
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#define MIPS3_CONFIG_SB_MASK 0x00c00000
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#define MIPS3_CONFIG_SB_SHIFT 22
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#define MIPS3_CONFIG_CACHE_L2_LSIZE(config) \
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(0x10 << (((config) & MIPS3_CONFIG_SB_MASK) >> MIPS3_CONFIG_SB_SHIFT))
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/* Write back data rate */
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#define MIPS3_CONFIG_EP_MASK 0x0f000000
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#define MIPS3_CONFIG_EP_SHIFT 24
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/* System clock ratio - this value is CPU dependent */
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#define MIPS3_CONFIG_EC_MASK 0x70000000
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#define MIPS3_CONFIG_EC_SHIFT 28
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/* Master-Checker Mode - 1: enabled */
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#define MIPS3_CONFIG_CM 0x80000000
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/*
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* Location of exception vectors.
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*
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* Common vectors: reset and UTLB miss.
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*/
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#define MIPS_RESET_EXC_VEC 0xBFC00000
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#define MIPS_UTLB_MISS_EXC_VEC 0x80000000
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/*
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* MIPS-1 general exception vector (everything else)
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*/
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#define MIPS1_GEN_EXC_VEC 0x80000080
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/*
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* MIPS-III exception vectors
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*/
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#define MIPS3_XTLB_MISS_EXC_VEC 0x80000080
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#define MIPS3_CACHE_ERR_EXC_VEC 0x80000100
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#define MIPS3_GEN_EXC_VEC 0x80000180
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/*
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* TX79 (R5900) exception vectors
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*/
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#define MIPS_R5900_COUNTER_EXC_VEC 0x80000080
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#define MIPS_R5900_DEBUG_EXC_VEC 0x80000100
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/*
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* MIPS32/MIPS64 (and some MIPS3) dedicated interrupt vector.
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*/
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#define MIPS3_INTR_EXC_VEC 0x80000200
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/*
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* Coprocessor 0 registers:
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*
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* v--- width for mips I,III,32,64
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* (3=32bit, 6=64bit, i=impl dep)
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* 0 MIPS_COP_0_TLB_INDEX 3333 TLB Index.
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* 1 MIPS_COP_0_TLB_RANDOM 3333 TLB Random.
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* 2 MIPS_COP_0_TLB_LOW 3... r3k TLB entry low.
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* 2 MIPS_COP_0_TLB_LO0 .636 r4k TLB entry low.
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* 3 MIPS_COP_0_TLB_LO1 .636 r4k TLB entry low, extended.
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* 4 MIPS_COP_0_TLB_CONTEXT 3636 TLB Context.
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* 5 MIPS_COP_0_TLB_PG_MASK .333 TLB Page Mask register.
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* 6 MIPS_COP_0_TLB_WIRED .333 Wired TLB number.
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* 8 MIPS_COP_0_BAD_VADDR 3636 Bad virtual address.
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* 9 MIPS_COP_0_COUNT .333 Count register.
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* 10 MIPS_COP_0_TLB_HI 3636 TLB entry high.
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* 11 MIPS_COP_0_COMPARE .333 Compare (against Count).
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* 12 MIPS_COP_0_STATUS 3333 Status register.
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* 13 MIPS_COP_0_CAUSE 3333 Exception cause register.
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* 14 MIPS_COP_0_EXC_PC 3636 Exception PC.
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* 15 MIPS_COP_0_PRID 3333 Processor revision identifier.
|
|
* 16 MIPS_COP_0_CONFIG 3333 Configuration register.
|
|
* 16/1 MIPS_COP_0_CONFIG1 ..33 Configuration register 1.
|
|
* 16/2 MIPS_COP_0_CONFIG2 ..33 Configuration register 2.
|
|
* 16/3 MIPS_COP_0_CONFIG3 ..33 Configuration register 3.
|
|
* 17 MIPS_COP_0_LLADDR .336 Load Linked Address.
|
|
* 18 MIPS_COP_0_WATCH_LO .336 WatchLo register.
|
|
* 19 MIPS_COP_0_WATCH_HI .333 WatchHi register.
|
|
* 20 MIPS_COP_0_TLB_XCONTEXT .6.6 TLB XContext register.
|
|
* 23 MIPS_COP_0_DEBUG .... Debug JTAG register.
|
|
* 24 MIPS_COP_0_DEPC .... DEPC JTAG register.
|
|
* 25 MIPS_COP_0_PERFCNT ..36 Performance Counter register.
|
|
* 26 MIPS_COP_0_ECC .3ii ECC / Error Control register.
|
|
* 27 MIPS_COP_0_CACHE_ERR .3ii Cache Error register.
|
|
* 28/0 MIPS_COP_0_TAG_LO .3ii Cache TagLo register (instr).
|
|
* 28/1 MIPS_COP_0_DATA_LO ..ii Cache DataLo register (instr).
|
|
* 28/2 MIPS_COP_0_TAG_LO ..ii Cache TagLo register (data).
|
|
* 28/3 MIPS_COP_0_DATA_LO ..ii Cache DataLo register (data).
|
|
* 29/0 MIPS_COP_0_TAG_HI .3ii Cache TagHi register (instr).
|
|
* 29/1 MIPS_COP_0_DATA_HI ..ii Cache DataHi register (instr).
|
|
* 29/2 MIPS_COP_0_TAG_HI ..ii Cache TagHi register (data).
|
|
* 29/3 MIPS_COP_0_DATA_HI ..ii Cache DataHi register (data).
|
|
* 30 MIPS_COP_0_ERROR_PC .636 Error EPC register.
|
|
* 31 MIPS_COP_0_DESAVE .... DESAVE JTAG register.
|
|
*/
|
|
#ifdef _LOCORE
|
|
#define _(n) __CONCAT($,n)
|
|
#else
|
|
#define _(n) n
|
|
#endif
|
|
#define MIPS_COP_0_TLB_INDEX _(0)
|
|
#define MIPS_COP_0_TLB_RANDOM _(1)
|
|
/* Name and meaning of TLB bits for $2 differ on r3k and r4k. */
|
|
|
|
#define MIPS_COP_0_TLB_CONTEXT _(4)
|
|
/* $5 and $6 new with MIPS-III */
|
|
#define MIPS_COP_0_BAD_VADDR _(8)
|
|
#define MIPS_COP_0_TLB_HI _(10)
|
|
#define MIPS_COP_0_STATUS_REG _(12)
|
|
#define MIPS_COP_0_CAUSE_REG _(13)
|
|
#define MIPS_COP_0_STATUS _(12)
|
|
#define MIPS_COP_0_CAUSE _(13)
|
|
#define MIPS_COP_0_EXC_PC _(14)
|
|
#define MIPS_COP_0_PRID _(15)
|
|
|
|
|
|
/* MIPS-I */
|
|
#define MIPS_COP_0_TLB_LOW _(2)
|
|
|
|
/* MIPS-III */
|
|
#define MIPS_COP_0_TLB_LO0 _(2)
|
|
#define MIPS_COP_0_TLB_LO1 _(3)
|
|
|
|
#define MIPS_COP_0_TLB_PG_MASK _(5)
|
|
#define MIPS_COP_0_TLB_WIRED _(6)
|
|
|
|
#define MIPS_COP_0_COUNT _(9)
|
|
#define MIPS_COP_0_COMPARE _(11)
|
|
|
|
#define MIPS_COP_0_CONFIG _(16)
|
|
#define MIPS_COP_0_LLADDR _(17)
|
|
#define MIPS_COP_0_WATCH_LO _(18)
|
|
#define MIPS_COP_0_WATCH_HI _(19)
|
|
#define MIPS_COP_0_TLB_XCONTEXT _(20)
|
|
#define MIPS_COP_0_ECC _(26)
|
|
#define MIPS_COP_0_CACHE_ERR _(27)
|
|
#define MIPS_COP_0_TAG_LO _(28)
|
|
#define MIPS_COP_0_TAG_HI _(29)
|
|
#define MIPS_COP_0_ERROR_PC _(30)
|
|
|
|
/* MIPS32/64 */
|
|
#define MIPS_COP_0_DEBUG _(23)
|
|
#define MIPS_COP_0_DEPC _(24)
|
|
#define MIPS_COP_0_PERFCNT _(25)
|
|
#define MIPS_COP_0_DATA_LO _(28)
|
|
#define MIPS_COP_0_DATA_HI _(29)
|
|
#define MIPS_COP_0_DESAVE _(31)
|
|
|
|
/*
|
|
* Values for the code field in a break instruction.
|
|
*/
|
|
#define MIPS_BREAK_INSTR 0x0000000d
|
|
#define MIPS_BREAK_VAL_MASK 0x03ff0000
|
|
#define MIPS_BREAK_VAL_SHIFT 16
|
|
#define MIPS_BREAK_KDB_VAL 512
|
|
#define MIPS_BREAK_SSTEP_VAL 513
|
|
#define MIPS_BREAK_BRKPT_VAL 514
|
|
#define MIPS_BREAK_SOVER_VAL 515
|
|
#define MIPS_BREAK_KDB (MIPS_BREAK_INSTR | \
|
|
(MIPS_BREAK_KDB_VAL << MIPS_BREAK_VAL_SHIFT))
|
|
#define MIPS_BREAK_SSTEP (MIPS_BREAK_INSTR | \
|
|
(MIPS_BREAK_SSTEP_VAL << MIPS_BREAK_VAL_SHIFT))
|
|
#define MIPS_BREAK_BRKPT (MIPS_BREAK_INSTR | \
|
|
(MIPS_BREAK_BRKPT_VAL << MIPS_BREAK_VAL_SHIFT))
|
|
#define MIPS_BREAK_SOVER (MIPS_BREAK_INSTR | \
|
|
(MIPS_BREAK_SOVER_VAL << MIPS_BREAK_VAL_SHIFT))
|
|
|
|
/*
|
|
* Mininum and maximum cache sizes.
|
|
*/
|
|
#define MIPS_MIN_CACHE_SIZE (16 * 1024)
|
|
#define MIPS_MAX_CACHE_SIZE (256 * 1024)
|
|
#define MIPS3_MAX_PCACHE_SIZE (32 * 1024) /* max. primary cache size */
|
|
|
|
/*
|
|
* The floating point version and status registers.
|
|
*/
|
|
#define MIPS_FPU_ID $0
|
|
#define MIPS_FPU_CSR $31
|
|
|
|
/*
|
|
* The floating point coprocessor status register bits.
|
|
*/
|
|
#define MIPS_FPU_ROUNDING_BITS 0x00000003
|
|
#define MIPS_FPU_ROUND_RN 0x00000000
|
|
#define MIPS_FPU_ROUND_RZ 0x00000001
|
|
#define MIPS_FPU_ROUND_RP 0x00000002
|
|
#define MIPS_FPU_ROUND_RM 0x00000003
|
|
#define MIPS_FPU_STICKY_BITS 0x0000007c
|
|
#define MIPS_FPU_STICKY_INEXACT 0x00000004
|
|
#define MIPS_FPU_STICKY_UNDERFLOW 0x00000008
|
|
#define MIPS_FPU_STICKY_OVERFLOW 0x00000010
|
|
#define MIPS_FPU_STICKY_DIV0 0x00000020
|
|
#define MIPS_FPU_STICKY_INVALID 0x00000040
|
|
#define MIPS_FPU_ENABLE_BITS 0x00000f80
|
|
#define MIPS_FPU_ENABLE_INEXACT 0x00000080
|
|
#define MIPS_FPU_ENABLE_UNDERFLOW 0x00000100
|
|
#define MIPS_FPU_ENABLE_OVERFLOW 0x00000200
|
|
#define MIPS_FPU_ENABLE_DIV0 0x00000400
|
|
#define MIPS_FPU_ENABLE_INVALID 0x00000800
|
|
#define MIPS_FPU_EXCEPTION_BITS 0x0003f000
|
|
#define MIPS_FPU_EXCEPTION_INEXACT 0x00001000
|
|
#define MIPS_FPU_EXCEPTION_UNDERFLOW 0x00002000
|
|
#define MIPS_FPU_EXCEPTION_OVERFLOW 0x00004000
|
|
#define MIPS_FPU_EXCEPTION_DIV0 0x00008000
|
|
#define MIPS_FPU_EXCEPTION_INVALID 0x00010000
|
|
#define MIPS_FPU_EXCEPTION_UNIMPL 0x00020000
|
|
#define MIPS_FPU_COND_BIT 0x00800000
|
|
#define MIPS_FPU_FLUSH_BIT 0x01000000 /* r4k, MBZ on r3k */
|
|
#define MIPS1_FPC_MBZ_BITS 0xff7c0000
|
|
#define MIPS3_FPC_MBZ_BITS 0xfe7c0000
|
|
|
|
|
|
/*
|
|
* Constants to determine if have a floating point instruction.
|
|
*/
|
|
#define MIPS_OPCODE_SHIFT 26
|
|
#define MIPS_OPCODE_C1 0x11
|
|
#define MIPS_OPCODE_LWC1 0x31
|
|
#define MIPS_OPCODE_LDC1 0x35
|
|
#define MIPS_OPCODE_SWC1 0x39
|
|
#define MIPS_OPCODE_SDC1 0x3d
|
|
|
|
|
|
/*
|
|
* The low part of the TLB entry.
|
|
*/
|
|
#define MIPS1_TLB_PFN 0xfffff000
|
|
#define MIPS1_TLB_NON_CACHEABLE_BIT 0x00000800
|
|
#define MIPS1_TLB_DIRTY_BIT 0x00000400
|
|
#define MIPS1_TLB_VALID_BIT 0x00000200
|
|
#define MIPS1_TLB_GLOBAL_BIT 0x00000100
|
|
|
|
#define MIPS3_TLB_PFN 0x3fffffc0
|
|
#define MIPS3_TLB_ATTR_MASK 0x00000038
|
|
#define MIPS3_TLB_ATTR_SHIFT 3
|
|
#define MIPS3_TLB_DIRTY_BIT 0x00000004
|
|
#define MIPS3_TLB_VALID_BIT 0x00000002
|
|
#define MIPS3_TLB_GLOBAL_BIT 0x00000001
|
|
|
|
#define MIPS1_TLB_PHYS_PAGE_SHIFT 12
|
|
#define MIPS3_TLB_PHYS_PAGE_SHIFT 6
|
|
#define MIPS1_TLB_PF_NUM MIPS1_TLB_PFN
|
|
#define MIPS3_TLB_PF_NUM MIPS3_TLB_PFN
|
|
#define MIPS1_TLB_MOD_BIT MIPS1_TLB_DIRTY_BIT
|
|
#define MIPS3_TLB_MOD_BIT MIPS3_TLB_DIRTY_BIT
|
|
|
|
/*
|
|
* MIPS3_TLB_ATTR values - coherency algorithm:
|
|
* 0: cacheable, noncoherent, write-through, no write allocate
|
|
* 1: cacheable, noncoherent, write-through, write allocate
|
|
* 2: uncached
|
|
* 3: cacheable, noncoherent, write-back (noncoherent)
|
|
* 4: cacheable, coherent, write-back, exclusive (exclusive)
|
|
* 5: cacheable, coherent, write-back, exclusive on write (sharable)
|
|
* 6: cacheable, coherent, write-back, update on write (update)
|
|
* 7: uncached, accelerated (gather STORE operations)
|
|
*/
|
|
#define MIPS3_TLB_ATTR_WT 0 /* IDT */
|
|
#define MIPS3_TLB_ATTR_WT_WRITEALLOCATE 1 /* IDT */
|
|
#define MIPS3_TLB_ATTR_UNCACHED 2 /* R4000/R4400, IDT */
|
|
#define MIPS3_TLB_ATTR_WB_NONCOHERENT 3 /* R4000/R4400, IDT */
|
|
#define MIPS3_TLB_ATTR_WB_EXCLUSIVE 4 /* R4000/R4400 */
|
|
#define MIPS3_TLB_ATTR_WB_SHARABLE 5 /* R4000/R4400 */
|
|
#define MIPS3_TLB_ATTR_WB_UPDATE 6 /* R4000/R4400 */
|
|
#define MIPS4_TLB_ATTR_UNCACHED_ACCELERATED 7 /* R10000 */
|
|
|
|
|
|
/*
|
|
* The high part of the TLB entry.
|
|
*/
|
|
#define MIPS1_TLB_VPN 0xfffff000
|
|
#define MIPS1_TLB_PID 0x00000fc0
|
|
#define MIPS1_TLB_PID_SHIFT 6
|
|
|
|
#define MIPS3_TLB_VPN2 0xffffe000
|
|
#define MIPS3_TLB_ASID 0x000000ff
|
|
|
|
#define MIPS1_TLB_VIRT_PAGE_NUM MIPS1_TLB_VPN
|
|
#define MIPS3_TLB_VIRT_PAGE_NUM MIPS3_TLB_VPN2
|
|
#define MIPS3_TLB_PID MIPS3_TLB_ASID
|
|
#define MIPS_TLB_VIRT_PAGE_SHIFT 12
|
|
|
|
/*
|
|
* r3000: shift count to put the index in the right spot.
|
|
*/
|
|
#define MIPS1_TLB_INDEX_SHIFT 8
|
|
|
|
/*
|
|
* The first TLB that write random hits.
|
|
*/
|
|
#define MIPS1_TLB_FIRST_RAND_ENTRY 8
|
|
#define MIPS3_TLB_WIRED_UPAGES 1
|
|
|
|
/*
|
|
* The number of process id entries.
|
|
*/
|
|
#define MIPS1_TLB_NUM_PIDS 64
|
|
#define MIPS3_TLB_NUM_ASIDS 256
|
|
|
|
/*
|
|
* Patch codes to hide CPU design differences between MIPS1 and MIPS3.
|
|
*/
|
|
|
|
/* XXX simonb: this is before MIPS3_PLUS is defined (and is ugly!) */
|
|
|
|
#if !(defined(MIPS3) || defined(MIPS4) || defined(MIPS32) || defined(MIPS64)) \
|
|
&& defined(MIPS1) /* XXX simonb must be neater! */
|
|
#define MIPS_TLB_PID_SHIFT MIPS1_TLB_PID_SHIFT
|
|
#define MIPS_TLB_NUM_PIDS MIPS1_TLB_NUM_PIDS
|
|
#endif
|
|
|
|
#if (defined(MIPS3) || defined(MIPS4) || defined(MIPS32) || defined(MIPS64)) \
|
|
&& !defined(MIPS1) /* XXX simonb must be neater! */
|
|
#define MIPS_TLB_PID_SHIFT 0
|
|
#define MIPS_TLB_NUM_PIDS MIPS3_TLB_NUM_ASIDS
|
|
#endif
|
|
|
|
|
|
#if !defined(MIPS_TLB_PID_SHIFT)
|
|
#define MIPS_TLB_PID_SHIFT \
|
|
((MIPS_HAS_R4K_MMU) ? 0 : MIPS1_TLB_PID_SHIFT)
|
|
|
|
#define MIPS_TLB_NUM_PIDS \
|
|
((MIPS_HAS_R4K_MMU) ? MIPS3_TLB_NUM_ASIDS : MIPS1_TLB_NUM_PIDS)
|
|
#endif
|
|
|
|
/*
|
|
* CPU processor revision IDs for company ID == 0 (non mips32/64 chips)
|
|
*/
|
|
#define MIPS_R2000 0x01 /* MIPS R2000 ISA I */
|
|
#define MIPS_R3000 0x02 /* MIPS R3000 ISA I */
|
|
#define MIPS_R6000 0x03 /* MIPS R6000 ISA II */
|
|
#define MIPS_R4000 0x04 /* MIPS R4000/R4400 ISA III */
|
|
#define MIPS_R3LSI 0x05 /* LSI Logic R3000 derivative ISA I */
|
|
#define MIPS_R6000A 0x06 /* MIPS R6000A ISA II */
|
|
#define MIPS_R3IDT 0x07 /* IDT R3041 or RC36100 ISA I */
|
|
#define MIPS_R10000 0x09 /* MIPS R10000 ISA IV */
|
|
#define MIPS_R4200 0x0a /* NEC VR4200 ISA III */
|
|
#define MIPS_R4300 0x0b /* NEC VR4300 ISA III */
|
|
#define MIPS_R4100 0x0c /* NEC VR4100 ISA III */
|
|
#define MIPS_R12000 0x0e /* MIPS R12000 ISA IV */
|
|
#define MIPS_R14000 0x0f /* MIPS R14000 ISA IV */
|
|
#define MIPS_R8000 0x10 /* MIPS R8000 Blackbird/TFP ISA IV */
|
|
#define MIPS_RC32300 0x18 /* IDT RC32334,332,355 ISA 32 */
|
|
#define MIPS_R4600 0x20 /* QED R4600 Orion ISA III */
|
|
#define MIPS_R4700 0x21 /* QED R4700 Orion ISA III */
|
|
#define MIPS_R3SONY 0x21 /* Sony R3000 based ISA I */
|
|
#define MIPS_R4650 0x22 /* QED R4650 ISA III */
|
|
#define MIPS_TX3900 0x22 /* Toshiba TX39 family ISA I */
|
|
#define MIPS_R5000 0x23 /* MIPS R5000 ISA IV */
|
|
#define MIPS_R3NKK 0x23 /* NKK R3000 based ISA I */
|
|
#define MIPS_RC32364 0x26 /* IDT RC32364 ISA 32 */
|
|
#define MIPS_RM7000 0x27 /* QED RM7000 ISA IV */
|
|
#define MIPS_RM5200 0x28 /* QED RM5200s ISA IV */
|
|
#define MIPS_TX4900 0x2d /* Toshiba TX49 family ISA III */
|
|
#define MIPS_R5900 0x2e /* Toshiba R5900 (EECore) ISA --- */
|
|
#define MIPS_RC64470 0x30 /* IDT RC64474/RC64475 ISA III */
|
|
#define MIPS_R5400 0x54 /* NEC VR5400 ISA IV */
|
|
|
|
/*
|
|
* CPU revision IDs for some prehistoric processors.
|
|
*/
|
|
|
|
/* For MIPS_R3000 */
|
|
#define MIPS_REV_R3000 0x20
|
|
#define MIPS_REV_R3000A 0x30
|
|
|
|
/* For MIPS_TX3900 */
|
|
#define MIPS_REV_TX3912 0x10
|
|
#define MIPS_REV_TX3922 0x30
|
|
#define MIPS_REV_TX3927 0x40
|
|
|
|
/* For MIPS_R4000 */
|
|
#define MIPS_REV_R4000_A 0x00
|
|
#define MIPS_REV_R4000_B 0x30
|
|
#define MIPS_REV_R4400_A 0x40
|
|
#define MIPS_REV_R4400_B 0x50
|
|
#define MIPS_REV_R4400_C 0x60
|
|
|
|
/*
|
|
* CPU processor revision IDs for company ID == 1 (MIPS)
|
|
*/
|
|
#define MIPS_4Kc 0x80 /* MIPS 4Kc ISA 32 */
|
|
#define MIPS_5Kc 0x81 /* MIPS 5Kc ISA 64 */
|
|
#define MIPS_4KEc 0x84 /* MIPS 4KEc ISA 32 */
|
|
#define MIPS_4KSc 0x86 /* MIPS 4KSc ISA 32 */
|
|
|
|
/*
|
|
* CPU processor revision IDs for company ID == 3 (Alchemy)
|
|
*/
|
|
#define MIPS_AU1000_R1 0x01 /* Alchemy Au1000 (Rev 1) ISA 32 */
|
|
#define MIPS_AU1000_R2 0x02 /* Alchemy Au1000 (Rev 2) ISA 32 */
|
|
|
|
/*
|
|
* CPU processor revision IDs for company ID == 4 (SiByte)
|
|
*/
|
|
#define MIPS_SB1 0x01 /* SiByte SB1 ISA 64 */
|
|
|
|
/*
|
|
* CPU processor revision IDs for company ID == 5 (SandCraft)
|
|
*/
|
|
#define MIPS_SR7100 0x04 /* SandCraft SR7100 ISA 64 */
|
|
|
|
/*
|
|
* FPU processor revision ID
|
|
*/
|
|
#define MIPS_SOFT 0x00 /* Software emulation ISA I */
|
|
#define MIPS_R2360 0x01 /* MIPS R2360 FPC ISA I */
|
|
#define MIPS_R2010 0x02 /* MIPS R2010 FPC ISA I */
|
|
#define MIPS_R3010 0x03 /* MIPS R3010 FPC ISA I */
|
|
#define MIPS_R6010 0x04 /* MIPS R6010 FPC ISA II */
|
|
#define MIPS_R4010 0x05 /* MIPS R4010 FPC ISA II */
|
|
#define MIPS_R31LSI 0x06 /* LSI Logic derivate ISA I */
|
|
#define MIPS_R3TOSH 0x22 /* Toshiba R3000 based FPU ISA I */
|
|
|
|
#ifdef ENABLE_MIPS_TX3900
|
|
#include <mips/r3900regs.h>
|
|
#endif
|
|
#ifdef MIPS3_5900
|
|
#include <mips/r5900regs.h>
|
|
#endif
|
|
|
|
#endif /* _MIPS_CPUREGS_H_ */
|