[PATCH v2 1/7] perf: Introduce ioctl to communicate driver configuration to kernel
From: mathieu.poirier@linaro.org (Mathieu Poirier)
Date: 2018-07-05 22:14:02
Also in:
lkml
Subsystem:
performance events subsystem, the rest · Maintainers:
Peter Zijlstra, Ingo Molnar, Arnaldo Carvalho de Melo, Namhyung Kim, Linus Torvalds
Adding a new IOCTL command to communicate PMU specific configuration to PMU kernel drivers. This can be anything a PMU might need for configuration that doesn't fit in the perf_event_attr structure, such as the CoreSight sink to use for a session. Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> --- include/uapi/linux/perf_event.h | 1 + tools/include/uapi/linux/perf_event.h | 1 + 2 files changed, 2 insertions(+)
diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h
index b8e288a1f740..b5b3241877df 100644
--- a/include/uapi/linux/perf_event.h
+++ b/include/uapi/linux/perf_event.h@@ -460,6 +460,7 @@ struct perf_event_query_bpf { #define PERF_EVENT_IOC_PAUSE_OUTPUT _IOW('$', 9, __u32) #define PERF_EVENT_IOC_QUERY_BPF _IOWR('$', 10, struct perf_event_query_bpf *) #define PERF_EVENT_IOC_MODIFY_ATTRIBUTES _IOW('$', 11, struct perf_event_attr *) +#define PERF_EVENT_IOC_SET_DRV_CONFIG _IOW('$', 12, char *) enum perf_event_ioc_flags { PERF_IOC_FLAG_GROUP = 1U << 0,
diff --git a/tools/include/uapi/linux/perf_event.h b/tools/include/uapi/linux/perf_event.h
index b8e288a1f740..b5b3241877df 100644
--- a/tools/include/uapi/linux/perf_event.h
+++ b/tools/include/uapi/linux/perf_event.h@@ -460,6 +460,7 @@ struct perf_event_query_bpf { #define PERF_EVENT_IOC_PAUSE_OUTPUT _IOW('$', 9, __u32) #define PERF_EVENT_IOC_QUERY_BPF _IOWR('$', 10, struct perf_event_query_bpf *) #define PERF_EVENT_IOC_MODIFY_ATTRIBUTES _IOW('$', 11, struct perf_event_attr *) +#define PERF_EVENT_IOC_SET_DRV_CONFIG _IOW('$', 12, char *) enum perf_event_ioc_flags { PERF_IOC_FLAG_GROUP = 1U << 0,
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2.7.4