blob: dc9a1ca70edf73ed4a8ebb653104dd2593d0816c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* pmc.h
* Copyright (C) 2004 David Gibson, IBM Corporation
*/
#ifndef _POWERPC_PMC_H
#define _POWERPC_PMC_H
#ifdef __KERNEL__
#include <asm/ptrace.h>
typedef void (*perf_irq_t)(struct pt_regs *);
extern perf_irq_t perf_irq;
int reserve_pmc_hardware(perf_irq_t new_perf_irq);
void release_pmc_hardware(void);
void ppc_enable_pmcs(void);
#ifdef CONFIG_PPC_BOOK3S_64
#include <asm/lppaca.h>
#include <asm/firmware.h>
static inline void ppc_set_pmu_inuse(int inuse)
{
#if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_KVM_BOOK3S_HV_POSSIBLE)
if (firmware_has_feature(FW_FEATURE_LPAR)) {
#ifdef CONFIG_PPC_PSERIES
get_lppaca()->pmcregs_in_use = inuse;
#endif
} else {
#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
get_paca()->pmcregs_in_use = inuse;
#endif
}
#endif
}
extern void power4_enable_pmcs(void);
#else /* CONFIG_PPC64 */
static inline void ppc_set_pmu_inuse(int inuse) { }
#endif
#endif /* __KERNEL__ */
#endif /* _POWERPC_PMC_H */
|
