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 2009 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26#ifndef _SYS_CPUDRV_MACH_H 27#define _SYS_CPUDRV_MACH_H 28 29#include <sys/cpuvar.h> 30#include <sys/cpupm.h> 31#include <sys/cpu_acpi.h> 32#include <sys/cpudrv.h> 33#include <sys/ksynch.h> 34 35#ifdef __cplusplus 36extern "C" { 37#endif 38 39/* 40 * We currently refuse to power manage if the CPU in not ready to 41 * take cross calls (cross calls fail silently if CPU is not ready 42 * for it). 43 */ 44extern cpuset_t cpu_ready_set; 45#define CPUDRV_XCALL_IS_READY(cpuid) CPU_IN_SET(cpu_ready_set, (cpuid)) 46 47/* 48 * We're about to exit the _PPC thread so reset tag. 49 */ 50#define CPUDRV_RESET_GOVERNOR_THREAD(cpupm) { \ 51 if (curthread == cpupm->pm_governor_thread) \ 52 cpupm->pm_governor_thread = NULL; \ 53} 54 55/* 56 * The current top speed as defined by the _PPC. 57 */ 58#define CPUDRV_TOPSPEED(cpupm) (cpupm)->top_spd 59 60/* 61 * Install a _PPC/_TPC change notification handler. 62 */ 63#define CPUDRV_INSTALL_MAX_CHANGE_HANDLER(cpudsp) \ 64 cpudrv_install_notify_handler(cpudsp); 65 66/* 67 * Uninstall _PPC/_TPC change notification handler. 68 */ 69#define CPUDRV_UNINSTALL_MAX_CHANGE_HANDLER(cpudsp) \ 70 cpudrv_uninstall_notify_handler(cpudsp); 71 72/* 73 * Redefine the topspeed. 74 */ 75#define CPUDRV_REDEFINE_TOPSPEED(dip) cpudrv_redefine_topspeed(dip) 76 77/* 78 * Set callbacks so that PPM can callback into CPUDRV 79 */ 80#define CPUDRV_SET_PPM_CALLBACKS() { \ 81 cpupm_get_topspeed_callb = cpudrv_get_topspeed; \ 82 cpupm_set_topspeed_callb = cpudrv_set_topspeed; \ 83} 84 85/* 86 * ACPI provides the supported speeds. 87 */ 88#define CPUDRV_GET_SPEEDS(cpudsp, speeds, nspeeds) \ 89 nspeeds = cpudrv_get_speeds(cpudsp, &speeds); 90#define CPUDRV_FREE_SPEEDS(speeds, nspeeds) \ 91 cpudrv_free_speeds(speeds, nspeeds); 92 93/* 94 * ACPI provides the supported C-states. 95 */ 96#define CPUDRV_GET_MAX_CSTATES(handle) \ 97 cpu_acpi_get_max_cstates(handle); 98 99/* 100 * Compute the idle cnt percentage for a given speed. 101 */ 102#define CPUDRV_IDLE_CNT_PERCENT(hwm, speeds, i) \ 103 (100 - (((100 - hwm) * speeds[0]) / speeds[i])) 104 105/* 106 * Compute the user cnt percentage for a given speed. 107 */ 108#define CPUDRV_USER_CNT_PERCENT(hwm, speeds, i) \ 109 ((hwm * speeds[i]) / speeds[i - 1]); 110 111/* 112 * pm-components property defintions for this machine type. 113 * 114 * Fully constructed pm-components property should be an array of 115 * strings that look something like: 116 * 117 * pmc[0] = "NAME=CPU Speed" 118 * pmc[1] = "1=2800MHz" 119 * pmc[2] = "2=3200MHz" 120 * 121 * The amount of memory needed for each string is: 122 * digits for power level + '=' + digits for freq + 'MHz' + '\0' 123 */ 124#define CPUDRV_COMP_SIZE() \ 125 (CPUDRV_COMP_MAX_DIG + 1 + CPUDRV_COMP_MAX_DIG + 3 + 1); 126#define CPUDRV_COMP_SPEED(cpupm, cur_spd) cur_spd->speed; 127#define CPUDRV_COMP_SPRINT(pmc, cpupm, cur_spd, comp_spd) \ 128 (void) sprintf(pmc, "%d=%dMHz", cur_spd->pm_level, comp_spd); 129 130extern void cpudrv_set_topspeed(void *, int); 131extern int cpudrv_get_topspeed(void *); 132extern int cpudrv_get_topthrottle(cpu_t *); 133extern void cpudrv_manage_throttling(void *); 134extern void cpudrv_install_notify_handler(cpudrv_devstate_t *); 135extern void cpudrv_uninstall_notify_handler(cpudrv_devstate_t *); 136extern void cpudrv_redefine_topspeed(void *); 137extern uint_t cpudrv_get_speeds(cpudrv_devstate_t *, int **); 138extern void cpudrv_free_speeds(int *, uint_t); 139 140#ifdef __cplusplus 141} 142#endif 143 144#endif /* _SYS_CPUDRV_MACH_H */ 145