[PATCH v3 12/26] fs/resctrl: Add hook for architecture code to set monitor event attributes

[Tony Luck <tony.luck@intel.com>]

Architecture code knows whether an event can be read from any CPU, or
from a CPU on a specific domain. It also knows what format to use
when printing each event value.

Add a hook to set mon_event.any_cpu and mon_event.type.

Signed-off-by: Tony Luck <tony.luck@intel.com>
---
 include/linux/resctrl.h |  3 +++
 fs/resctrl/monitor.c    | 12 ++++++++++++
 2 files changed, 15 insertions(+)

diff --git a/include/linux/resctrl.h b/include/linux/resctrl.h
index 0fce626605b9..8ac77b738de5 100644
--- a/include/linux/resctrl.h
+++ b/include/linux/resctrl.h
@@ -418,6 +418,9 @@ void resctrl_offline_mon_domain(struct rdt_resource *r, struct rdt_mon_domain *d
 void resctrl_online_cpu(unsigned int cpu);
 void resctrl_offline_cpu(unsigned int cpu);
 
+int resctrl_set_event_attributes(enum resctrl_event_id evt,
+				 enum resctrl_event_type type, bool any_cpu);
+
 /**
  * resctrl_arch_rmid_read() - Read the eventid counter corresponding to rmid
  *			      for this resource and domain.
diff --git a/fs/resctrl/monitor.c b/fs/resctrl/monitor.c
index 1efad57d1d85..5846a13c631a 100644
--- a/fs/resctrl/monitor.c
+++ b/fs/resctrl/monitor.c
@@ -863,6 +863,18 @@ static struct mon_evt all_events[QOS_NUM_EVENTS] = {
 	},
 };
 
+int resctrl_set_event_attributes(enum resctrl_event_id evt,
+				 enum resctrl_event_type type, bool any_cpu)
+{
+	if (evt >= QOS_NUM_EVENTS)
+		return -ENOENT;
+
+	all_events[evt].type = type;
+	all_events[evt].any_cpu = any_cpu;
+
+	return 0;
+}
+
 int rdt_lookup_evtid_by_name(char *name)
 {
 	int evt;
-- 
2.48.1