diff options
Diffstat (limited to 'usr/src/lib/libbc/inc/include/sun4/mmu.h')
| -rw-r--r-- | usr/src/lib/libbc/inc/include/sun4/mmu.h | 282 |
1 files changed, 0 insertions, 282 deletions
diff --git a/usr/src/lib/libbc/inc/include/sun4/mmu.h b/usr/src/lib/libbc/inc/include/sun4/mmu.h deleted file mode 100644 index a18c4ea8c4..0000000000 --- a/usr/src/lib/libbc/inc/include/sun4/mmu.h +++ /dev/null @@ -1,282 +0,0 @@ -/* - * CDDL HEADER START - * - * The contents of this file are subject to the terms of the - * Common Development and Distribution License, Version 1.0 only - * (the "License"). You may not use this file except in compliance - * with the License. - * - * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE - * or http://www.opensolaris.org/os/licensing. - * See the License for the specific language governing permissions - * and limitations under the License. - * - * When distributing Covered Code, include this CDDL HEADER in each - * file and include the License file at usr/src/OPENSOLARIS.LICENSE. - * If applicable, add the following below this CDDL HEADER, with the - * fields enclosed by brackets "[]" replaced with your own identifying - * information: Portions Copyright [yyyy] [name of copyright owner] - * - * CDDL HEADER END - */ -/* - * Copyright 2004 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. - */ - -#ifndef _SUN4_MMU_H -#define _SUN4_MMU_H - -#pragma ident "%Z%%M% %I% %E% SMI" - -#ifdef __cplusplus -extern "C" { -#endif - -/* - * Sun-4 memory management unit. - * All sun-4 implementations use 32 bits of address. - * A particular implementation may implement a smaller MMU. - * If so, the missing addresses are in the "middle" of the - * 32 bit address space. All accesses in this range behave - * as if there was an invalid page map entry correspronding - * to the address. - * - * There are two types of MMUs a 2 level MMU and a 3 level MMU. - * Three level MMUs do not have holes. - */ - -/* - * Hardware context and segment information - * Mnemonic decoding: - * PMENT - Page Map ENTry - * PMGRP - Group of PMENTs (aka "segment") - * SMENT - Segment Map ENTry - 3 level MMU only - * SMGRP - Group of SMENTs (aka "region") - 3 level MMU only - */ -/* fixed SUN4 constants */ -#define NPMENTPERPMGRP 32 -#define NPMENTPERPMGRPSHIFT 5 /* log2(NPMENTPERPMGRP) */ -#define PMGRPSIZE (NPMENTPERPMGRP * PAGESIZE) -#define PMGRPOFFSET (PMGRPSIZE - 1) -#define PMGRPSHIFT (PAGESHIFT + NPMENTPERPMGRPSHIFT) -#define PMGRPMASK (~PMGRPOFFSET) - -#define NSMENTPERSMGRP 64 -#define NSMENTPERSMGRPSHIFT 6 /* log2(NSMENTPERSMGRP) */ -#define SMGRPSIZE (NSMENTPERSMGRP * PMGRPSIZE) -#define SMGRPOFFSET (SMGRPSIZE - 1) -#define SMGRPSHIFT (PMGRPSHIFT + NSMENTPERSMGRPSHIFT) -#define SMGRPMASK (~SMGRPOFFSET) - -#define NSMGRPPERCTX 256 - -/* - * Useful defines for hat constants, - * Every implementation seems to have its own set - * they are set at boot time by setcputype() - */ -#define NCTXS nctxs -#define NPMGRPS npmgrps -#define NSMGRPS nsmgrps - -/* - * Variables set at boot time to reflect cpu type. - */ -#ifndef LOCORE -#include <sys/types.h> - -extern uint_t nctxs; /* number of implemented contexts */ -extern uint_t npmgrps; /* number of pmgrps in page map */ -#ifdef MMU_3LEVEL -extern uint_t nsmgrps; /* number of smgrps in segment map (3 level) */ -#endif /* MMU_3LEVEL */ -extern uint_t segmask; /* mask for segment number */ -extern addr_t hole_start; /* addr of start of MMU "hole" */ -extern addr_t hole_end; /* addr of end of MMU "hole" */ -extern uint_t shm_alignment; /* VAC address consistency modulus */ - -#ifdef MMU_3LEVEL -extern int mmu_3level; /* indicates 3 level MMU can exist */ -#endif /* MMU_3LEVEL */ - -#define PMGRP_INVALID (NPMGRPS - 1) -#define SMGRP_INVALID (NSMGRPS - 1) - -/* - * Macro to determine whether an address is within the range of the MMU. - */ -#ifdef MMU_3LEVEL -#define good_addr(a) \ - (mmu_3level || (addr_t)(a) < hole_start || (addr_t)(a) >= hole_end) -#else -#define good_addr(a) \ - ((addr_t)(a) < hole_start || (addr_t)(a) >= hole_end) -#endif /* MMU_3LEVEL */ -#endif /* !LOCORE */ - -/* - * Address space identifiers. - */ -#define ASI_CTL 0x2 /* control space */ -#define ASI_SM 0x3 /* segment map */ -#define ASI_PM 0x4 /* page map */ -#define ASI_BC 0x5 /* block copy */ -#define ASI_RM 0x6 /* region map */ -#define ASI_FCR 0x7 /* flush cache region */ -#define ASI_UP 0x8 /* user program */ -#define ASI_SP 0x9 /* supervisor program */ -#define ASI_UD 0xA /* user data */ -#define ASI_SD 0xB /* supervisor data */ -#define ASI_FCS 0xC /* flush cache segment */ -#define ASI_FCP 0xD /* flush cache page */ -#define ASI_FCC 0xE /* flush cache context */ -#define ASI_FCU 0xF /* flush cache user, sunray */ - -#define ASI_CD 0xF /* cache data, sunrise */ - -/* - * ASI_CTL addresses - */ -#define ID_PROM 0x00000000 -#define CONTEXT_REG 0x30000000 -#define SYSTEM_ENABLE 0x40000000 -#define BUS_ERROR_REG 0x60000000 -#define DIAGNOSTIC_REG 0x70000000 -#define CACHE_TAGS 0x80000000 -#define CACHE_DATA 0x90000000 /* cache data, sunray */ -#define VME_INT_VEC 0xE0000000 -#define UART_BYPASS 0xF0000000 - -#define IDPROMSIZE 0x20 /* size of id prom in bytes */ - -/* - * Constants for cache operations. - * XXX - should be deleted but the standalones (boot) use them. - */ -#define VAC_SIZE 0x20000 /* 128K */ -#define VAC_LINESIZE_SUNRISE 16 /* 16 bytes per line */ -#define VAC_LINESIZE_SUNRAY 32 /* 32 bytes per line */ -#define NPMGRPPERCTX_110 4096 -#define NPMGRPPERCTX_260 4096 -#define NPMGRPPERCTX_330 4096 -#define NPMGRPS_110 256 -#define NPMGRPS_260 512 -#define NPMGRPS_330 256 -#define NPMGRPS_470 1024 - -/* - * Various I/O space related constants - */ -#define VME16_BASE 0xFFFF0000 -#define VME16_SIZE (1<<16) -#define VME16_MASK (VME16_SIZE-1) - -#define VME24_BASE 0xFF000000 -#define VME24_SIZE (1<<24) -#define VME24_MASK (VME24_SIZE-1) - -/* - * Virtual address where dvma starts. - */ -#define DVMABASE (0-(1024*1024)) - -/* - * Context for kernel. On a Sun-4 the kernel is in every address space, - * but KCONTEXT is magic in that there is never any user context there. - */ -#define KCONTEXT 0 - -/* - * MDEVBASE is a virtual segment reserved for mapping misc. obio devices. - * The base address and the number of devices mapped should not cause the - * device mappings to cross a segment boundary. We use the segment - * immediately before SYSBASE - */ -#define MDEVBASE (SYSBASE - PMGRPSIZE) - -/* - * SEGTEMP & SEGTEMP2 are virtual segments reserved for temporary operations. - * We use the segments immediately before the start of debugger area. - */ -#define SEGTEMP ((addr_t)(DEBUGSTART - (2 * PMGRPSIZE))) -#define SEGTEMP2 ((addr_t)(DEBUGSTART - PMGRPSIZE)) - -/* - * REGTEMP is only during intialization, we use the - * REGION immediately before KERNELBASE, it is invalidated - * after use - */ -#define REGTEMP ((KERNELBASE-SMGRPSIZE)&SMGRPMASK) - -#if defined(KERNEL) && !defined(LOCORE) - -#ifdef VAC -void vac_dontcache(); -/* - * cache related constants set at boot time - */ -extern int vac_size; /* size of cache in bytes */ -extern int vac_linesize; /* cache linesize */ -extern int vac_nlines; /* number of lines in cache */ -extern int vac_pglines; /* number of cache lines in a page */ -#endif /* VAC */ - -/* - * Low level mmu-specific functions - */ -struct ctx *mmu_getctx(); -void mmu_setctx(/* ctx */); -void mmu_setpmg(/* base, pmg */); -void mmu_settpmg(/* base, pmg */); -struct pmgrp *mmu_getpmg(/* base */); -void mmu_setpte(/* base, pte */); -void mmu_getpte(/* base, ppte */); -void mmu_getkpte(/* base, ppte */); -void mmu_pmginval(/* pmg */); -#ifdef MMU_3LEVEL -struct smgrp *mmu_getsmg(/* base */); -void mmu_setsmg(/* base, smg */); -void mmu_settsmg(/* base, smg */); -void mmu_smginval(/* smg */); -#endif /* MMU_3LEVEL */ - -/* - * Cache specific routines - ifdef'ed out if there is no chance - * of running on a machine with a virtual address cache. - */ -#ifdef VAC -void vac_init(); -void vac_tagsinit(); -void vac_flushall(); -void vac_ctxflush(); -#ifdef MMU_3LEVEL -void vac_usrflush(); -void vac_rgnflush(/* base */); -#endif /* MMU_3LEVEL */ -void vac_segflush(/* base */); -void vac_pageflush(/* base */); -void vac_flush(/* base, len */); -int bp_alloc(/* map, bp, size */); -#else /* VAC */ -#define vac_init() -#define vac_tagsinit() -#define vac_flushall() -#define vac_usrflush() -#define vac_ctxflush() -#define vac_rgnflush(base) -#define vac_segflush(base) -#define vac_pageflush(base) -#define vac_flush(base, len) -#define bp_alloc(map, bp, size) (int)rmalloc((map), (long)(size)) -#endif /* VAC */ - -int valid_va_range(/* basep, lenp, minlen, dir */); - -#endif /* defined(KERNEL) && !defined(LOCORE) */ - -#ifdef __cplusplus -} -#endif - -#endif /* !_SUN4_MMU_H */ |