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s390/pai_crypto: Rename structure paicrypt_root

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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.
Rename structure paicrypt_root to pai_root.
No functional change.

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 15:38:44 +01:00 committed by Heiko Carstens
parent a626e0d46a
commit 3f082c2e47
1 changed files with 18 additions and 18 deletions
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36
arch/s390/kernel/perf_pai_crypto.c
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@ -43,20 +43,20 @@ struct pai_mapptr {
struct pai_map *mapptr;
};
static struct paicrypt_root { /* Anchor to per CPU data */
static struct pai_root { /* Anchor to per CPU data */
refcount_t refcnt; /* Overall active events */
struct pai_mapptr __percpu *mapptr;
} paicrypt_root;
} pai_root;
/* Free per CPU data when the last event is removed. */
static void paicrypt_root_free(void)
{
if (refcount_dec_and_test(&paicrypt_root.refcnt)) {
free_percpu(paicrypt_root.mapptr);
paicrypt_root.mapptr = NULL;
if (refcount_dec_and_test(&pai_root.refcnt)) {
free_percpu(pai_root.mapptr);
pai_root.mapptr = NULL;
}
debug_sprintf_event(paidbg, 5, "%s root.refcount %d\n", __func__,
refcount_read(&paicrypt_root.refcnt));
refcount_read(&pai_root.refcnt));
}
/*
@ -67,12 +67,12 @@ static void paicrypt_root_free(void)
*/
static int paicrypt_root_alloc(void)
{
if (!refcount_inc_not_zero(&paicrypt_root.refcnt)) {
if (!refcount_inc_not_zero(&pai_root.refcnt)) {
/* The memory is already zeroed. */
paicrypt_root.mapptr = alloc_percpu(struct pai_mapptr);
if (!paicrypt_root.mapptr)
pai_root.mapptr = alloc_percpu(struct pai_mapptr);
if (!pai_root.mapptr)
return -ENOMEM;
refcount_set(&paicrypt_root.refcnt, 1);
refcount_set(&pai_root.refcnt, 1);
}
return 0;
}
@ -94,7 +94,7 @@ static void paicrypt_free(struct pai_mapptr *mp)
*/
static void paicrypt_event_destroy_cpu(struct perf_event *event, int cpu)
{
struct pai_mapptr *mp = per_cpu_ptr(paicrypt_root.mapptr, cpu);
struct pai_mapptr *mp = per_cpu_ptr(pai_root.mapptr, cpu);
struct pai_map *cpump = mp->mapptr;
mutex_lock(&pai_reserve_mutex);
@ -137,7 +137,7 @@ static u64 paicrypt_getctr(unsigned long *page, int nr, bool kernel)
*/
static u64 paicrypt_getdata(struct perf_event *event, bool kernel)
{
struct pai_mapptr *mp = this_cpu_ptr(paicrypt_root.mapptr);
struct pai_mapptr *mp = this_cpu_ptr(pai_root.mapptr);
struct pai_map *cpump = mp->mapptr;
u64 sum = 0;
int i;
@ -190,7 +190,7 @@ static int paicrypt_alloc_cpu(struct perf_event *event, int cpu)
goto unlock;
/* Allocate node for this event */
mp = per_cpu_ptr(paicrypt_root.mapptr, cpu);
mp = per_cpu_ptr(pai_root.mapptr, cpu);
cpump = mp->mapptr;
if (!cpump) { /* Paicrypt_map allocated? */
rc = -ENOMEM;
@ -326,7 +326,7 @@ static void paicrypt_read(struct perf_event *event)
static void paicrypt_start(struct perf_event *event, int flags)
{
struct pai_mapptr *mp = this_cpu_ptr(paicrypt_root.mapptr);
struct pai_mapptr *mp = this_cpu_ptr(pai_root.mapptr);
struct pai_map *cpump = mp->mapptr;
u64 sum;
@ -347,7 +347,7 @@ static void paicrypt_start(struct perf_event *event, int flags)
static int paicrypt_add(struct perf_event *event, int flags)
{
struct pai_mapptr *mp = this_cpu_ptr(paicrypt_root.mapptr);
struct pai_mapptr *mp = this_cpu_ptr(pai_root.mapptr);
struct pai_map *cpump = mp->mapptr;
unsigned long ccd;
@ -365,7 +365,7 @@ static int paicrypt_add(struct perf_event *event, int flags)
static void paicrypt_have_sample(struct perf_event *, struct pai_map *);
static void paicrypt_stop(struct perf_event *event, int flags)
{
struct pai_mapptr *mp = this_cpu_ptr(paicrypt_root.mapptr);
struct pai_mapptr *mp = this_cpu_ptr(pai_root.mapptr);
struct pai_map *cpump = mp->mapptr;
if (!event->attr.sample_period) { /* Counting */
@ -384,7 +384,7 @@ static void paicrypt_stop(struct perf_event *event, int flags)
static void paicrypt_del(struct perf_event *event, int flags)
{
struct pai_mapptr *mp = this_cpu_ptr(paicrypt_root.mapptr);
struct pai_mapptr *mp = this_cpu_ptr(pai_root.mapptr);
struct pai_map *cpump = mp->mapptr;
paicrypt_stop(event, PERF_EF_UPDATE);
@ -488,7 +488,7 @@ static void paicrypt_have_sample(struct perf_event *event,
/* Check if there is data to be saved on schedule out of a task. */
static void paicrypt_have_samples(void)
{
struct pai_mapptr *mp = this_cpu_ptr(paicrypt_root.mapptr);
struct pai_mapptr *mp = this_cpu_ptr(pai_root.mapptr);
struct pai_map *cpump = mp->mapptr;
struct perf_event *event;