admin/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2025-12-07 20:06:24 +00:00
Code Issues Packages Projects Releases Wiki Activity

s390/pai_crypto: Add common pai_del() function

Browse Source 
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.

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 15:38:57 +01:00
committed by Heiko Carstens
parent ac03223f07
commit 42e6a0f6d2
1 changed files with 8 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
arch/s390/kernel/perf_pai_crypto.c
View File

@@ -460,18 +460,24 @@ static void paicrypt_stop(struct perf_event *event, int flags)
pai_stop(event, flags);
}
static void paicrypt_del(struct perf_event *event, int flags)
static void pai_del(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);
paicrypt_stop(event, PERF_EF_UPDATE);
pai_pmu[idx].pmu->stop(event, PERF_EF_UPDATE);
if (--cpump->active_events == 0) {
local_ctl_clear_bit(0, CR0_CRYPTOGRAPHY_COUNTER_BIT);
WRITE_ONCE(get_lowcore()->ccd, 0);
}
}
static void paicrypt_del(struct perf_event *event, int flags)
{
pai_del(event, flags);
}
/* Create raw data and save it in buffer. Calculate the delta for each
* counter between this invocation and the last invocation.
* Returns number of bytes copied.