1212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner/* 2212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner * CPU-measurement facilities 3212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner * 4212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner * Copyright IBM Corp. 2012 5212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner * Author(s): Hendrik Brueckner <brueckner@linux.vnet.ibm.com> 6212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner * Jan Glauber <jang@linux.vnet.ibm.com> 7212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner * 8212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner * This program is free software; you can redistribute it and/or modify 9212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner * it under the terms of the GNU General Public License (version 2 only) 10212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner * as published by the Free Software Foundation. 11212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner */ 12b03d541aa45b52e1b723890121a9fe3920eb438bJan Glauber#ifndef _ASM_S390_CPU_MF_H 13b03d541aa45b52e1b723890121a9fe3920eb438bJan Glauber#define _ASM_S390_CPU_MF_H 14b03d541aa45b52e1b723890121a9fe3920eb438bJan Glauber 151e3cab2f2fbca25289094698fd1280ecfad7a8d4Heiko Carstens#include <asm/facility.h> 161e3cab2f2fbca25289094698fd1280ecfad7a8d4Heiko Carstens 17b03d541aa45b52e1b723890121a9fe3920eb438bJan Glauber#define CPU_MF_INT_SF_IAE (1 << 31) /* invalid entry address */ 18b03d541aa45b52e1b723890121a9fe3920eb438bJan Glauber#define CPU_MF_INT_SF_ISE (1 << 30) /* incorrect SDBT entry */ 19b03d541aa45b52e1b723890121a9fe3920eb438bJan Glauber#define CPU_MF_INT_SF_PRA (1 << 29) /* program request alert */ 20b03d541aa45b52e1b723890121a9fe3920eb438bJan Glauber#define CPU_MF_INT_SF_SACA (1 << 23) /* sampler auth. change alert */ 21b03d541aa45b52e1b723890121a9fe3920eb438bJan Glauber#define CPU_MF_INT_SF_LSDA (1 << 22) /* loss of sample data alert */ 22212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner#define CPU_MF_INT_CF_CACA (1 << 7) /* counter auth. change alert */ 23212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner#define CPU_MF_INT_CF_LCDA (1 << 6) /* loss of counter data alert */ 24212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner 25212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner#define CPU_MF_INT_CF_MASK (CPU_MF_INT_CF_CACA|CPU_MF_INT_CF_LCDA) 26212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner#define CPU_MF_INT_SF_MASK (CPU_MF_INT_SF_IAE|CPU_MF_INT_SF_ISE| \ 27212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner CPU_MF_INT_SF_PRA|CPU_MF_INT_SF_SACA| \ 28212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner CPU_MF_INT_SF_LSDA) 29212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner 30212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner/* CPU measurement facility support */ 31212188a596d17d519842ef2173150315735b54e1Hendrik Bruecknerstatic inline int cpum_cf_avail(void) 32212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner{ 33212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner return MACHINE_HAS_SPP && test_facility(67); 34212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner} 35212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner 36212188a596d17d519842ef2173150315735b54e1Hendrik Bruecknerstatic inline int cpum_sf_avail(void) 37212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner{ 38212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner return MACHINE_HAS_SPP && test_facility(68); 39212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner} 40212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner 41212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner 42212188a596d17d519842ef2173150315735b54e1Hendrik Bruecknerstruct cpumf_ctr_info { 43212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner u16 cfvn; 44212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner u16 auth_ctl; 45212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner u16 enable_ctl; 46212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner u16 act_ctl; 47212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner u16 max_cpu; 48212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner u16 csvn; 49212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner u16 max_cg; 50212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner u16 reserved1; 51212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner u32 reserved2[12]; 52212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner} __packed; 53212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner 54212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner/* Query counter information */ 55212188a596d17d519842ef2173150315735b54e1Hendrik Bruecknerstatic inline int qctri(struct cpumf_ctr_info *info) 56212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner{ 57212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner int rc = -EINVAL; 58212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner 59212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner asm volatile ( 60212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner "0: .insn s,0xb28e0000,%1\n" 61212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner "1: lhi %0,0\n" 62212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner "2:\n" 63212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner EX_TABLE(1b, 2b) 64212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner : "+d" (rc), "=Q" (*info)); 65212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner return rc; 66212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner} 67212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner 68212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner/* Load CPU-counter-set controls */ 69212188a596d17d519842ef2173150315735b54e1Hendrik Bruecknerstatic inline int lcctl(u64 ctl) 70212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner{ 71212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner int cc; 72212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner 73212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner asm volatile ( 74212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner " .insn s,0xb2840000,%1\n" 75212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner " ipm %0\n" 76212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner " srl %0,28\n" 77212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner : "=d" (cc) : "m" (ctl) : "cc"); 78212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner return cc; 79212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner} 80212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner 81212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner/* Extract CPU counter */ 82212188a596d17d519842ef2173150315735b54e1Hendrik Bruecknerstatic inline int ecctr(u64 ctr, u64 *val) 83212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner{ 84212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner register u64 content asm("4") = 0; 85212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner int cc; 86212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner 87212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner asm volatile ( 88212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner " .insn rre,0xb2e40000,%0,%2\n" 89212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner " ipm %1\n" 90212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner " srl %1,28\n" 91212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner : "=d" (content), "=d" (cc) : "d" (ctr) : "cc"); 92212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner if (!cc) 93212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner *val = content; 94212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner return cc; 95212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner} 96b03d541aa45b52e1b723890121a9fe3920eb438bJan Glauber 97212188a596d17d519842ef2173150315735b54e1Hendrik Brueckner#endif /* _ASM_S390_CPU_MF_H */ 98