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s390/pai_crypto: use PERF_ATTACH_TASK define for per task detection

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Use define PERF_ATTACH_TASK bit in event->attach_state to determine
system wide invocation or per task invocation in event initialization.
This bit is set in common code and before calling PMU device driver
specific event initialization.
It is set once and never changes. It is save to use and also in
sync with other PMU specific code.
No functional change.

Acked-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
This commit is contained in:
Thomas Richter 2023-10-10 16:14:22 +02:00 committed by Vasily Gorbik
parent 1954da4a2b
commit a13e8bdf0f
2 changed files with 2 additions and 2 deletions
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2
arch/s390/kernel/perf_pai_crypto.c
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@ -269,7 +269,7 @@ static int paicrypt_event_init(struct perf_event *event)
a->config > PAI_CRYPTO_BASE + paicrypt_cnt)
return -EINVAL;
/* Allow only CPU wide operation, no process context for now. */
if (event->hw.target || event->cpu == -1)
if ((event->attach_state & PERF_ATTACH_TASK) || event->cpu == -1)
return -ENOENT;
/* Allow only CRYPTO_ALL for sampling. */
if (a->sample_period && a->config != PAI_CRYPTO_BASE)

2
arch/s390/kernel/perf_pai_ext.c
View File

@ -248,7 +248,7 @@ static int paiext_event_init(struct perf_event *event)
if (rc)
return rc;
/* Allow only CPU wide operation, no process context for now. */
if (event->hw.target || event->cpu == -1)
if ((event->attach_state & PERF_ATTACH_TASK) || event->cpu == -1)
return -ENOENT;
/* Allow only event NNPA_ALL for sampling. */
if (a->sample_period && a->config != PAI_NNPA_BASE)