17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 525cf1a30Sjl139090 * Common Development and Distribution License (the "License"). 625cf1a30Sjl139090 * You may not use this file except in compliance with the License. 77c478bd9Sstevel@tonic-gate * 87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 117c478bd9Sstevel@tonic-gate * and limitations under the License. 127c478bd9Sstevel@tonic-gate * 137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 187c478bd9Sstevel@tonic-gate * 197c478bd9Sstevel@tonic-gate * CDDL HEADER END 207c478bd9Sstevel@tonic-gate */ 217c478bd9Sstevel@tonic-gate /* 22*94e7edb1Slucy wang - Sun Microsystems - Beijing China * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 237c478bd9Sstevel@tonic-gate * Use is subject to license terms. 247c478bd9Sstevel@tonic-gate */ 257c478bd9Sstevel@tonic-gate 267c478bd9Sstevel@tonic-gate #ifndef _SYS_CPU_H 277c478bd9Sstevel@tonic-gate #define _SYS_CPU_H 287c478bd9Sstevel@tonic-gate 297c478bd9Sstevel@tonic-gate /* 307c478bd9Sstevel@tonic-gate * Include generic bustype cookies. 317c478bd9Sstevel@tonic-gate */ 327c478bd9Sstevel@tonic-gate #include <sys/bustypes.h> 337c478bd9Sstevel@tonic-gate 34*94e7edb1Slucy wang - Sun Microsystems - Beijing China #if defined(_KERNEL) 35*94e7edb1Slucy wang - Sun Microsystems - Beijing China #if defined(__GNUC__) && defined(_ASM_INLINES) 36*94e7edb1Slucy wang - Sun Microsystems - Beijing China #include <asm/cpu.h> 37*94e7edb1Slucy wang - Sun Microsystems - Beijing China #endif 38*94e7edb1Slucy wang - Sun Microsystems - Beijing China #endif /* _KERNEL */ 39*94e7edb1Slucy wang - Sun Microsystems - Beijing China 407c478bd9Sstevel@tonic-gate #ifdef __cplusplus 417c478bd9Sstevel@tonic-gate extern "C" { 427c478bd9Sstevel@tonic-gate #endif 437c478bd9Sstevel@tonic-gate 44*94e7edb1Slucy wang - Sun Microsystems - Beijing China 457c478bd9Sstevel@tonic-gate /* 467c478bd9Sstevel@tonic-gate * Global kernel variables of interest 477c478bd9Sstevel@tonic-gate */ 487c478bd9Sstevel@tonic-gate 497c478bd9Sstevel@tonic-gate #if defined(_KERNEL) && !defined(_ASM) 507c478bd9Sstevel@tonic-gate 517c478bd9Sstevel@tonic-gate extern int dvmasize; /* usable dvma size in pages */ 527c478bd9Sstevel@tonic-gate 537c478bd9Sstevel@tonic-gate /* 547c478bd9Sstevel@tonic-gate * Cache defines 557c478bd9Sstevel@tonic-gate * 567c478bd9Sstevel@tonic-gate * Each bit represents an attribute of the system's caches that 577c478bd9Sstevel@tonic-gate * the OS must handle. For example, VAC caches must have virtual 587c478bd9Sstevel@tonic-gate * alias detection, VTAG caches must be flushed on every demap, etc. 597c478bd9Sstevel@tonic-gate */ 607c478bd9Sstevel@tonic-gate #define CACHE_NONE 0 /* No caches of any type */ 617c478bd9Sstevel@tonic-gate #define CACHE_VAC 0x01 /* Virtual addressed cache */ 627c478bd9Sstevel@tonic-gate #define CACHE_VTAG 0x02 /* Virtual tagged cache */ 637c478bd9Sstevel@tonic-gate #define CACHE_PAC 0x04 /* Physical addressed cache */ 647c478bd9Sstevel@tonic-gate #define CACHE_PTAG 0x08 /* Physical tagged cache */ 657c478bd9Sstevel@tonic-gate #define CACHE_WRITEBACK 0x10 /* Writeback cache */ 667c478bd9Sstevel@tonic-gate #define CACHE_IOCOHERENT 0x20 /* I/O coherent cache */ 677c478bd9Sstevel@tonic-gate 687c478bd9Sstevel@tonic-gate extern int cache; 697c478bd9Sstevel@tonic-gate 707c478bd9Sstevel@tonic-gate /* set this to zero if no vac */ 717c478bd9Sstevel@tonic-gate extern int vac; 727c478bd9Sstevel@tonic-gate 737c478bd9Sstevel@tonic-gate /* 747c478bd9Sstevel@tonic-gate * Use to insert cpu-dependent instructions into spin loops 757c478bd9Sstevel@tonic-gate */ 7625cf1a30Sjl139090 #pragma weak cpu_smt_pause 7725cf1a30Sjl139090 extern void cpu_smt_pause(); 7825cf1a30Sjl139090 #define SMT_PAUSE() { if (&cpu_smt_pause) cpu_smt_pause(); } 797c478bd9Sstevel@tonic-gate 807c478bd9Sstevel@tonic-gate #endif /* defined(_KERNEL) && !defined(_ASM) */ 817c478bd9Sstevel@tonic-gate 827c478bd9Sstevel@tonic-gate #ifdef __cplusplus 837c478bd9Sstevel@tonic-gate } 847c478bd9Sstevel@tonic-gate #endif 857c478bd9Sstevel@tonic-gate 867c478bd9Sstevel@tonic-gate #endif /* _SYS_CPU_H */ 87