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s390/pai_crypto: Add common pai_stop() function

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To support one common PAI PMU device driver which handles
both PMUs pai_crypto and pai_ext, use a common naming scheme
for structures and variables suitable for both device drivers.

Add a common usable function pai_stop() for the event on a CPU.
Call this common pai_stop() from paicrypt_del().

Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Reviewed-by: Jan Polensky <japo@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
This commit is contained in:
Thomas Richter 2025-11-05 15:38:56 +01:00 committed by Heiko Carstens
parent a65a4d7e80
commit ac03223f07
1 changed files with 8 additions and 2 deletions
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10
arch/s390/kernel/perf_pai_crypto.c
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@ -435,13 +435,14 @@ static int paicrypt_add(struct perf_event *event, int flags)
}
static void pai_have_sample(struct perf_event *, struct pai_map *);
static void paicrypt_stop(struct perf_event *event, int flags)
static void pai_stop(struct perf_event *event, int flags)
{
struct pai_mapptr *mp = this_cpu_ptr(pai_root.mapptr);
struct pai_map *cpump = mp->mapptr;
int idx = PAI_PMU_IDX(event);
if (!event->attr.sample_period) { /* Counting */
paicrypt_read(event);
pai_pmu[idx].pmu->read(event);
} else { /* Sampling */
if (!(event->attach_state & PERF_ATTACH_TASK)) {
perf_sched_cb_dec(event->pmu);
@ -454,6 +455,11 @@ static void paicrypt_stop(struct perf_event *event, int flags)
event->hw.state = PERF_HES_STOPPED;
}
static void paicrypt_stop(struct perf_event *event, int flags)
{
pai_stop(event, flags);
}
static void paicrypt_del(struct perf_event *event, int flags)
{
struct pai_mapptr *mp = this_cpu_ptr(pai_root.mapptr);