1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _SYS_CPU_H 27 #define _SYS_CPU_H 28 29 #pragma ident "%Z%%M% %I% %E% SMI" 30 31 /* 32 * WARNING: 33 * This header file is Obsolete and may be deleted in a 34 * future release of Solaris. 35 */ 36 37 /* 38 * Include generic bustype cookies. 39 */ 40 #include <sys/bustypes.h> 41 #include <sys/inttypes.h> 42 43 #if defined(_KERNEL) 44 #if defined(__xpv) 45 #include <sys/hypervisor.h> 46 #endif 47 #if defined(__GNUC__) && defined(_ASM_INLINES) 48 #include <asm/cpu.h> 49 #endif 50 #endif /* _KERNEL */ 51 52 #ifdef __cplusplus 53 extern "C" { 54 #endif 55 56 #if defined(_KERNEL) 57 extern void ht_pause(void); 58 extern void cli(void); 59 extern void sti(void); 60 extern void i86_halt(void); 61 extern void i86_monitor(volatile uint32_t *addr, uint32_t extensions, 62 uint32_t hints); 63 extern void i86_mwait(uint32_t data, uint32_t extensions); 64 65 /* 66 * Used to insert cpu-dependent instructions into spin loops 67 */ 68 #if defined(__xpv) 69 extern int xpv_panicking; 70 #define SMT_PAUSE() \ 71 { \ 72 if (IN_XPV_PANIC()) \ 73 ht_pause(); \ 74 else \ 75 (void) HYPERVISOR_yield(); \ 76 } 77 78 #else 79 #define SMT_PAUSE() ht_pause() 80 #endif 81 82 /* 83 * 84 * C-state defines for the idle_state_transition DTrace probe 85 * 86 * The probe fires when the CPU undergoes an idle state change (e.g. C-state) 87 * The agument passed is the C-state to which the CPU is transitioning. 88 * 89 * The states are defined here. 90 */ 91 #define IDLE_STATE_C0 0 92 #define IDLE_STATE_C1 1 93 94 #endif /* _KERNEL */ 95 96 #ifdef __cplusplus 97 } 98 #endif 99 100 #endif /* _SYS_CPU_H */ 101