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Commit 86c0b757 authored by Hendrik Brueckner's avatar Hendrik Brueckner Committed by Martin Schwidefsky
Browse files

s390/cpum_cf: add ctr_stcctm() function 



Introduce the ctr_stcctm() function as wrapper function to extract counters
from a particular counter set.  Note that the counter set is part of the
stcctm instruction opcode, few indirections are necessary to specify the
counter set as variable.

Signed-off-by: default avatarHendrik Brueckner <brueckner@linux.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent 7f5ac1a0

arch/s390/include/asm/cpu_mcf.h

+19 −0
Original line number Diff line number Diff line
@@ -49,6 +49,25 @@ static inline void ctr_set_stop(u64 *state, int ctr_set) 
	*state &= ~(cpumf_ctr_ctl[ctr_set] << CPUMF_LCCTL_ACTCTL_SHIFT);

}



static inline int ctr_stcctm(enum cpumf_ctr_set set, u64 range, u64 *dest)

{

	switch (set) {

	case CPUMF_CTR_SET_BASIC:

		return stcctm(BASIC, range, dest);

	case CPUMF_CTR_SET_USER:

		return stcctm(PROBLEM_STATE, range, dest);

	case CPUMF_CTR_SET_CRYPTO:

		return stcctm(CRYPTO_ACTIVITY, range, dest);

	case CPUMF_CTR_SET_EXT:

		return stcctm(EXTENDED, range, dest);

	case CPUMF_CTR_SET_MT_DIAG:

		return stcctm(MT_DIAG_CLEARING, range, dest);

	case CPUMF_CTR_SET_MAX:

		return 3;

	}

	return 3;

}



struct cpu_cf_events {

	struct cpumf_ctr_info	info;

	atomic_t		ctr_set[CPUMF_CTR_SET_MAX];