1/* SPDX-License-Identifier: GPL-2.0-or-later */
 2/*
 3 * pmc.h
 4 * Copyright (C) 2004  David Gibson, IBM Corporation
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 5 */
 6#ifndef _POWERPC_PMC_H
 7#define _POWERPC_PMC_H
 8#ifdef __KERNEL__
 9
10#include <asm/ptrace.h>
11
12typedef void (*perf_irq_t)(struct pt_regs *);
13extern perf_irq_t perf_irq;
14
15int reserve_pmc_hardware(perf_irq_t new_perf_irq);
16void release_pmc_hardware(void);
17void ppc_enable_pmcs(void);
18
19#ifdef CONFIG_PPC_BOOK3S_64
20#include <asm/lppaca.h>
21#include <asm/firmware.h>
22
23static inline void ppc_set_pmu_inuse(int inuse)
24{
25#if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_KVM_BOOK3S_HV_POSSIBLE)
26	if (firmware_has_feature(FW_FEATURE_LPAR)) {
27#ifdef CONFIG_PPC_PSERIES
28		get_lppaca()->pmcregs_in_use = inuse;
29#endif
30	}
31#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
32	get_paca()->pmcregs_in_use = inuse;
33#endif
34#endif
35}
36
37#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
38static inline int ppc_get_pmu_inuse(void)
39{
40	return get_paca()->pmcregs_in_use;
41}
42#endif
43
44extern void power4_enable_pmcs(void);
45
46#else /* CONFIG_PPC64 */
47
48static inline void ppc_set_pmu_inuse(int inuse) { }
49
50#endif
51
52#endif /* __KERNEL__ */
53#endif /* _POWERPC_PMC_H */

 
 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
25typedef void (*perf_irq_t)(struct pt_regs *);
26extern perf_irq_t perf_irq;
27
28int reserve_pmc_hardware(perf_irq_t new_perf_irq);
29void release_pmc_hardware(void);
30void ppc_enable_pmcs(void);
31
32#ifdef CONFIG_PPC_BOOK3S_64
33#include <asm/lppaca.h>
 
34
35static inline void ppc_set_pmu_inuse(int inuse)
36{
37	get_lppaca()->pmcregs_in_use = inuse;
 
 
 
 
 
 
 
 
 
38}
 
 
 
 
 
 
 
39
40extern void power4_enable_pmcs(void);
41
42#else /* CONFIG_PPC64 */
43
44static inline void ppc_set_pmu_inuse(int inuse) { }
45
46#endif
47
48#endif /* __KERNEL__ */
49#endif /* _POWERPC_PMC_H */