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-rw-r--r--arch/s390/kernel/perf_cpum_sf.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/arch/s390/kernel/perf_cpum_sf.c b/arch/s390/kernel/perf_cpum_sf.c
index 0292d68e7dde..5c53e977be62 100644
--- a/arch/s390/kernel/perf_cpum_sf.c
+++ b/arch/s390/kernel/perf_cpum_sf.c
@@ -2,7 +2,7 @@
/*
* Performance event support for the System z CPU-measurement Sampling Facility
*
- * Copyright IBM Corp. 2013
+ * Copyright IBM Corp. 2013, 2018
* Author(s): Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
*/
#define KMSG_COMPONENT "cpum_sf"
@@ -665,7 +665,7 @@ static void cpumsf_output_event_pid(struct perf_event *event,
goto out;
/* Update the process ID (see also kernel/events/core.c) */
- data->tid_entry.pid = cpumsf_pid_type(event, pid, __PIDTYPE_TGID);
+ data->tid_entry.pid = cpumsf_pid_type(event, pid, PIDTYPE_TGID);
data->tid_entry.tid = cpumsf_pid_type(event, pid, PIDTYPE_PID);
perf_output_sample(&handle, &header, data, event);
@@ -1587,6 +1587,17 @@ static void aux_buffer_free(void *data)
"%lu SDBTs\n", num_sdbt);
}
+static void aux_sdb_init(unsigned long sdb)
+{
+ struct hws_trailer_entry *te;
+
+ te = (struct hws_trailer_entry *)trailer_entry_ptr(sdb);
+
+ /* Save clock base */
+ te->clock_base = 1;
+ memcpy(&te->progusage2, &tod_clock_base[1], 8);
+}
+
/*
* aux_buffer_setup() - Setup AUX buffer for diagnostic mode sampling
* @cpu: On which to allocate, -1 means current
@@ -1666,6 +1677,7 @@ static void *aux_buffer_setup(int cpu, void **pages, int nr_pages,
/* Tail is the entry in a SDBT */
*tail = (unsigned long)pages[i];
aux->sdb_index[i] = (unsigned long)pages[i];
+ aux_sdb_init((unsigned long)pages[i]);
}
sfb->num_sdb = nr_pages;