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pmc.h
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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 
35 static inline void ppc_set_pmu_inuse(int inuse)
36 {
37  get_lppaca()->pmcregs_in_use = inuse;
38 }
39 
40 extern void power4_enable_pmcs(void);
41 
42 #else /* CONFIG_PPC64 */
43 
44 static inline void ppc_set_pmu_inuse(int inuse) { }
45 
46 #endif
47 
48 #endif /* __KERNEL__ */
49 #endif /* _POWERPC_PMC_H */