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freebsd/sys/powerpc/include/pmc_mdep.h
Fabien Thomas f5f9340b98 Add software PMC support.
New kernel events can be added at various location for sampling or counting.
This will for example allow easy system profiling whatever the processor is
with known tools like pmcstat(8).

Simultaneous usage of software PMC and hardware PMC is possible, for example
looking at the lock acquire failure, page fault while sampling on
instructions.

Sponsored by: NETASQ
MFC after:	1 month
2012-03-28 20:58:30 +00:00

37 lines
609 B
C

/*-
* This file is in the public domain.
*
* $FreeBSD$
*/
#ifndef _MACHINE_PMC_MDEP_H_
#define _MACHINE_PMC_MDEP_H_
#define PMC_MDEP_CLASS_INDEX_PPC7450 1
union pmc_md_op_pmcallocate {
uint64_t __pad[4];
};
/* Logging */
#define PMCLOG_READADDR PMCLOG_READ32
#define PMCLOG_EMITADDR PMCLOG_EMIT32
#if _KERNEL
struct pmc_md_powerpc_pmc {
uint32_t pm_powerpc_evsel;
};
union pmc_md_pmc {
struct pmc_md_powerpc_pmc pm_powerpc;
};
#define PMC_TRAPFRAME_TO_PC(TF) (0) /* Stubs */
#define PMC_TRAPFRAME_TO_FP(TF) (0)
#define PMC_TRAPFRAME_TO_SP(TF) (0)
#endif
#endif /* !_MACHINE_PMC_MDEP_H_ */