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/* $NetBSD: ctlreg.h,v 1.8 1995/06/25 21:35:05 pk Exp $ */
/*
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Lawrence Berkeley Laboratory.
*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University 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 THE REGENTS AND 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 THE REGENTS OR 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.
*
* @(#)ctlreg.h 8.1 (Berkeley) 6/11/93
*/
/*
* Sun-4, 4c, and 4m control registers. (includes address space definitions
* and some registers in control space).
*/
/* 0x00 unused */
/* 0x01 unused */
#if defined(SUN4C) || defined(SUN4)
#define ASI_CONTROL 0x02 /* cache enable, context reg, etc */
#define ASI_SEGMAP 0x03 /* segment maps (so we can reach each pmeg) */
#define ASI_PTE 0x04 /* PTE space (pmegs) */
#define ASI_REGMAP 0x06 /* region maps (3 level MMUs only) */
#define ASI_HWFLUSHSEG 0x05 /* hardware assisted version of FLUSHSEG */
#define ASI_HWFLUSHPG 0x06 /* hardware assisted version of FLUSHPG */
#define ASI_HWFLUSHCTX 0x07 /* hardware assisted version of FLUSHCTX */
#endif
#if defined(SUN4M)
#define ASI_SRMMUFP 0x03 /* ref mmu flush/probe */
#define ASI_SRMMUFP_L3 (0<<8) /* probe L3 | flush L3 PTE */
#define ASI_SRMMUFP_L2 (1<<8) /* probe L2 | flush L2/L3 PTE/PTD's */
#define ASI_SRMMUFP_L1 (2<<8) /* probe L1 | flush L1/L2/L3 PTE/PTD's*/
#define ASI_SRMMUFP_L0 (3<<8) /* probe L0 | flush L0/L1/L2/L3 PTE/PTD's */
#define ASI_SRMMUFP_LN (4<<8) /* probe all | flush all levels */
#define ASI_SRMMU 0x04 /* ref mmu registers */
#define ASI_SRMMUDIAG 0x06
#endif
#define ASI_USERI 0x08 /* I-space (user) */
#define ASI_KERNELI 0x09 /* I-space (kernel) */
#define ASI_USERD 0x0a /* D-space (user) */
#define ASI_KERNELD 0x0b /* D-space (kernel) */
#if defined(SUN4C) || defined(SUN4)
#define ASI_FLUSHREG 0x7 /* causes hardware to flush cache region */
#define ASI_FLUSHSEG 0x0c /* causes hardware to flush cache segment */
#define ASI_FLUSHPG 0x0d /* causes hardware to flush cache page */
#define ASI_FLUSHCTX 0x0e /* causes hardware to flush cache context */
#endif
#if defined(SUN4)
#define ASI_DCACHE 0x0f /* flush data cache; not used on 4c */
#endif
#if defined(SUN4M)
#define ASI_ICACHETAG 0x0c /* instruction cache tag */
#define ASI_ICACHEDATA 0x0d /* instruction cache data */
#define ASI_DCACHETAG 0x0e /* data cache tag */
#define ASI_DCACHEDATA 0x0f /* data cache data */
#define ASI_IDCACHELFP 0x10 /* ms2 only: flush i&d cache line (page) */
#define ASI_IDCACHELFS 0x11 /* ms2 only: flush i&d cache line (seg) */
#define ASI_IDCACHELFR 0x12 /* ms2 only: flush i&d cache line (reg) */
#define ASI_IDCACHELFC 0x13 /* ms2 only: flush i&d cache line (ctxt) */
#define ASI_IDCACHELFU 0x14 /* ms2 only: flush i&d cache line (user) */
#define ASI_BYPASS 0x20 /* sun ref mmu bypass, ie. direct phys access */
#define ASI_ICACHECLR 0x36 /* ms1 only: instruction cache flash clear */
#define ASI_DCACHECLR 0x37 /* ms1 only: data cache clear */
#define ASI_DCACHEDIAG 0x39 /* data cache diagnostic register access */
#endif
#if defined(SUN4C) || defined(SUN4)
/* registers in the control space */
#define AC_CONTEXT 0x30000000 /* context register (byte) */
#define AC_SYSENABLE 0x40000000 /* system enable register (byte) */
#define AC_CACHETAGS 0x80000000 /* cache tag base address */
#define AC_SERIAL 0xf0000000 /* special serial port sneakiness */
/* AC_SERIAL is not used in the kernel (it is for the PROM) */
#endif
#if defined(SUN4)
#define AC_IDPROM 0x00000000 /* ID PROM */
#define AC_DVMA_ENABLE 0x50000000 /* enable user dvma */
#define AC_BUS_ERR 0x60000000 /* bus error register */
#define AC_DIAG_REG 0x70000000 /* diagnostic reg */
#define AC_DVMA_MAP 0xd0000000 /* user dvma map entries */
#define AC_VMEINTVEC 0xe0000000 /* vme interrupt vector */
/* XXX: does not belong here */
#define ME_REG_IERR 0x80 /* memory err ctrl reg error intr pending bit */
#endif
#if defined(SUN4C)
#define AC_SYNC_ERR 0x60000000 /* sync (memory) error reg */
#define AC_SYNC_VA 0x60000004 /* sync error virtual addr */
#define AC_ASYNC_ERR 0x60000008 /* async error reg */
#define AC_ASYNC_VA 0x6000000c /* async error virtual addr */
#define AC_CACHEDATA 0x90000000 /* cached data */
#endif
#if defined(SUN4C) || defined(SUN4)
/*
* Bits in sync error register. Reading the register clears these;
* otherwise they accumulate. The error(s) occurred at the virtual
* address stored in the sync error address register, and may have
* been due to, e.g., what would usually be called a page fault.
* Worse, the bits accumulate during instruction prefetch, so
* various bits can be on that should be off.
*/
#define SER_WRITE 0x8000 /* error occurred during write */
#define SER_INVAL 0x80 /* PTE had PG_V off */
#define SER_PROT 0x40 /* operation violated PTE prot */
#define SER_TIMEOUT 0x20 /* bus timeout (non-existent mem) */
#define SER_SBUSERR 0x10 /* S-Bus bus error */
#define SER_MEMERR 0x08 /* memory ecc/parity error */
#define SER_SZERR 0x02 /* size error, whatever that is */
#define SER_WATCHDOG 0x01 /* watchdog reset (never see this) */
#define SER_BITS \
"\20\20WRITE\10INVAL\7PROT\6TIMEOUT\5SBUSERR\4MEMERR\2SZERR\1WATCHDOG"
/*
* Bits in async error register (errors from DVMA or Sun-4 cache
* writeback). The corresponding bit is also set in the sync error reg.
*
* A writeback invalid error means there is a bug in the PTE manager.
*
* The word is that the async error register does not work right.
*/
#define AER_WBINVAL 0x80 /* writeback found PTE without PG_V */
#define AER_TIMEOUT 0x20 /* bus timeout */
#define AER_DVMAERR 0x10 /* bus error during DVMA */
#define AER_BITS "\20\10WBINVAL\6TIMEOUT\5DVMAERR"
/*
* Bits in system enable register.
*/
#define SYSEN_DVMA 0x20 /* Enable dvma */
#define SYSEN_CACHE 0x10 /* Enable cache */
#define SYSEN_IOCACHE 0x40 /* Enable IO cache */
#define SYSEN_RESET 0x04 /* Reset the hardware */
#define SYSEN_RESETVME 0x02 /* Reset the VME bus */
#endif
#if defined(SUN4M)
#define SRMMU_PCR 0x00000000 /* Processor control register */
#define SRMMU_CXTPTR 0x00000100 /* Context table pointer register */
#define SRMMU_CXR 0x00000200 /* Context register */
#define SRMMU_SFSTAT 0x00000300 /* Synchronous fault status reg */
#define SRMMU_SFADDR 0x00000400 /* Synchronous fault address reg */
#define SRMMU_TLBCTRL 0x00001000 /* TLB replacement control reg */
/* Synchronous Fault Status Register bits */
#define SFSR_CS 0x00010000 /* Control Space error */
#define SFSR_PERR 0x00006000 /* Parity error code */
#define SFSR_TO 0x00000800 /* S-Bus timeout */
#define SFSR_BE 0x00000400 /* S-Bus bus error */
#define SFSR_LVL 0x00000300 /* Pagetable level causing the fault */
#define SFSR_AT 0x000000e0 /* Access type */
#define SFSR_FT 0x0000001c /* Fault type */
#define SFSR_FAV 0x00000002 /* Fault Address is valid */
#define SFSR_OW 0x00000001 /* Overwritten with new fault */
/* TLB Replacement Control Register bits */
#define TLBC_DISABLE 0x00000020 /* Disable replacement counter */
#define TLBC_RCNTMASK 0x0000001f /* Replacement counter (0-31) */
#endif
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