| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 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 */ |