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 36 extern "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 */ 44 extern 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); 129 130 extern void cpudrv_set_topspeed(void *, int); 131 extern int cpudrv_get_topspeed(void *); 132 extern int cpudrv_get_topthrottle(cpu_t *); 133 extern void cpudrv_manage_throttling(void *); 134 extern void cpudrv_install_notify_handler(cpudrv_devstate_t *); 135 extern void cpudrv_uninstall_notify_handler(cpudrv_devstate_t *); 136 extern void cpudrv_redefine_topspeed(void *); 137 extern uint_t cpudrv_get_speeds(cpudrv_devstate_t *, int **); 138 extern void cpudrv_free_speeds(int *, uint_t); 139 140 #ifdef __cplusplus 141 } 142 #endif 143 144 #endif /* _SYS_CPUDRV_MACH_H */ 145