1*0e751525SEric Saxe /* 2*0e751525SEric Saxe * CDDL HEADER START 3*0e751525SEric Saxe * 4*0e751525SEric Saxe * The contents of this file are subject to the terms of the 5*0e751525SEric Saxe * Common Development and Distribution License (the "License"). 6*0e751525SEric Saxe * You may not use this file except in compliance with the License. 7*0e751525SEric Saxe * 8*0e751525SEric Saxe * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9*0e751525SEric Saxe * or http://www.opensolaris.org/os/licensing. 10*0e751525SEric Saxe * See the License for the specific language governing permissions 11*0e751525SEric Saxe * and limitations under the License. 12*0e751525SEric Saxe * 13*0e751525SEric Saxe * When distributing Covered Code, include this CDDL HEADER in each 14*0e751525SEric Saxe * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15*0e751525SEric Saxe * If applicable, add the following below this CDDL HEADER, with the 16*0e751525SEric Saxe * fields enclosed by brackets "[]" replaced with your own identifying 17*0e751525SEric Saxe * information: Portions Copyright [yyyy] [name of copyright owner] 18*0e751525SEric Saxe * 19*0e751525SEric Saxe * CDDL HEADER END 20*0e751525SEric Saxe */ 21*0e751525SEric Saxe /* 22*0e751525SEric Saxe * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 23*0e751525SEric Saxe * Use is subject to license terms. 24*0e751525SEric Saxe */ 25*0e751525SEric Saxe 26*0e751525SEric Saxe #include <sys/sunddi.h> 27*0e751525SEric Saxe #include <sys/cpupm.h> 28*0e751525SEric Saxe 29*0e751525SEric Saxe /* 30*0e751525SEric Saxe * Initialize the field that will be used for reporting 31*0e751525SEric Saxe * the supported_frequencies_Hz cpu_info kstat. 32*0e751525SEric Saxe */ 33*0e751525SEric Saxe void 34*0e751525SEric Saxe cpupm_set_supp_freqs(cpu_t *cp, int *speeds, uint_t nspeeds) 35*0e751525SEric Saxe { 36*0e751525SEric Saxe char *supp_freqs = NULL; 37*0e751525SEric Saxe char *sfptr; 38*0e751525SEric Saxe uint64_t *hzspeeds; 39*0e751525SEric Saxe int i; 40*0e751525SEric Saxe int j; 41*0e751525SEric Saxe #define UINT64_MAX_STRING (sizeof ("18446744073709551615")) 42*0e751525SEric Saxe 43*0e751525SEric Saxe if (speeds == NULL) { 44*0e751525SEric Saxe cpu_set_supp_freqs(cp, supp_freqs); 45*0e751525SEric Saxe return; 46*0e751525SEric Saxe } 47*0e751525SEric Saxe 48*0e751525SEric Saxe hzspeeds = kmem_zalloc(nspeeds * sizeof (uint64_t), KM_SLEEP); 49*0e751525SEric Saxe for (i = nspeeds - 1, j = 0; i >= 0; i--, j++) { 50*0e751525SEric Saxe hzspeeds[i] = CPUPM_SPEED_HZ(cp->cpu_type_info.pi_clock, 51*0e751525SEric Saxe speeds[j]); 52*0e751525SEric Saxe } 53*0e751525SEric Saxe 54*0e751525SEric Saxe supp_freqs = kmem_zalloc((UINT64_MAX_STRING * nspeeds), KM_SLEEP); 55*0e751525SEric Saxe sfptr = supp_freqs; 56*0e751525SEric Saxe for (i = 0; i < nspeeds; i++) { 57*0e751525SEric Saxe if (i == nspeeds - 1) { 58*0e751525SEric Saxe (void) sprintf(sfptr, "%"PRIu64, hzspeeds[i]); 59*0e751525SEric Saxe } else { 60*0e751525SEric Saxe (void) sprintf(sfptr, "%"PRIu64":", hzspeeds[i]); 61*0e751525SEric Saxe sfptr = supp_freqs + strlen(supp_freqs); 62*0e751525SEric Saxe } 63*0e751525SEric Saxe } 64*0e751525SEric Saxe cpu_set_supp_freqs(cp, supp_freqs); 65*0e751525SEric Saxe kmem_free(supp_freqs, (UINT64_MAX_STRING * nspeeds)); 66*0e751525SEric Saxe kmem_free(hzspeeds, nspeeds * sizeof (uint64_t)); 67*0e751525SEric Saxe } 68