1 /* 2 * pmc.h 3 * Copyright (C) 2004 David Gibson, IBM Corporation 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License as published by 7 * the Free Software Foundation; either version 2 of the License, or 8 * (at your option) any later version. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program; if not, write to the Free Software 17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 18 */ 19 #ifndef _POWERPC_PMC_H 20 #define _POWERPC_PMC_H 21 #ifdef __KERNEL__ 22 23 #include <asm/ptrace.h> 24 25 typedef void (*perf_irq_t)(struct pt_regs *); 26 extern perf_irq_t perf_irq; 27 28 int reserve_pmc_hardware(perf_irq_t new_perf_irq); 29 void release_pmc_hardware(void); 30 void ppc_enable_pmcs(void); 31 32 #ifdef CONFIG_PPC_BOOK3S_64 33 #include <asm/lppaca.h> 34 #include <asm/firmware.h> 35 36 static inline void ppc_set_pmu_inuse(int inuse) 37 { 38 #if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_KVM_BOOK3S_HV_POSSIBLE) 39 if (firmware_has_feature(FW_FEATURE_LPAR)) { 40 #ifdef CONFIG_PPC_PSERIES 41 get_lppaca()->pmcregs_in_use = inuse; 42 #endif 43 } else { 44 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE 45 get_paca()->pmcregs_in_use = inuse; 46 #endif 47 } 48 #endif 49 } 50 51 extern void power4_enable_pmcs(void); 52 53 #else /* CONFIG_PPC64 */ 54 55 static inline void ppc_set_pmu_inuse(int inuse) { } 56 57 #endif 58 59 #endif /* __KERNEL__ */ 60 #endif /* _POWERPC_PMC_H */ 61