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-rw-r--r--tools/perf/util/event.h121
1 files changed, 121 insertions, 0 deletions
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index 7c3fa1c8cbcd..9967c87af7a6 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -252,6 +252,127 @@ enum auxtrace_error_type {
PERF_AUXTRACE_ERROR_MAX
};
+/* Attribute type for custom synthesized events */
+#define PERF_TYPE_SYNTH (INT_MAX + 1U)
+
+/* Attribute config for custom synthesized events */
+enum perf_synth_id {
+ PERF_SYNTH_INTEL_PTWRITE,
+ PERF_SYNTH_INTEL_MWAIT,
+ PERF_SYNTH_INTEL_PWRE,
+ PERF_SYNTH_INTEL_EXSTOP,
+ PERF_SYNTH_INTEL_PWRX,
+ PERF_SYNTH_INTEL_CBR,
+};
+
+/*
+ * Raw data formats for synthesized events. Note that 4 bytes of padding are
+ * present to match the 'size' member of PERF_SAMPLE_RAW data which is always
+ * 8-byte aligned. That means we must dereference raw_data with an offset of 4.
+ * Refer perf_sample__synth_ptr() and perf_synth__raw_data(). It also means the
+ * structure sizes are 4 bytes bigger than the raw_size, refer
+ * perf_synth__raw_size().
+ */
+
+struct perf_synth_intel_ptwrite {
+ u32 padding;
+ union {
+ struct {
+ u32 ip : 1,
+ reserved : 31;
+ };
+ u32 flags;
+ };
+ u64 payload;
+};
+
+struct perf_synth_intel_mwait {
+ u32 padding;
+ u32 reserved;
+ union {
+ struct {
+ u64 hints : 8,
+ reserved1 : 24,
+ extensions : 2,
+ reserved2 : 30;
+ };
+ u64 payload;
+ };
+};
+
+struct perf_synth_intel_pwre {
+ u32 padding;
+ u32 reserved;
+ union {
+ struct {
+ u64 reserved1 : 7,
+ hw : 1,
+ subcstate : 4,
+ cstate : 4,
+ reserved2 : 48;
+ };
+ u64 payload;
+ };
+};
+
+struct perf_synth_intel_exstop {
+ u32 padding;
+ union {
+ struct {
+ u32 ip : 1,
+ reserved : 31;
+ };
+ u32 flags;
+ };
+};
+
+struct perf_synth_intel_pwrx {
+ u32 padding;
+ u32 reserved;
+ union {
+ struct {
+ u64 deepest_cstate : 4,
+ last_cstate : 4,
+ wake_reason : 4,
+ reserved1 : 52;
+ };
+ u64 payload;
+ };
+};
+
+struct perf_synth_intel_cbr {
+ u32 padding;
+ union {
+ struct {
+ u32 cbr : 8,
+ reserved1 : 8,
+ max_nonturbo : 8,
+ reserved2 : 8;
+ };
+ u32 flags;
+ };
+ u32 freq;
+ u32 reserved3;
+};
+
+/*
+ * raw_data is always 4 bytes from an 8-byte boundary, so subtract 4 to get
+ * 8-byte alignment.
+ */
+static inline void *perf_sample__synth_ptr(struct perf_sample *sample)
+{
+ return sample->raw_data - 4;
+}
+
+static inline void *perf_synth__raw_data(void *p)
+{
+ return p + 4;
+}
+
+#define perf_synth__raw_size(d) (sizeof(d) - 4)
+
+#define perf_sample__bad_synth_size(s, d) ((s)->raw_size < sizeof(d) - 4)
+
/*
* The kernel collects the number of events it couldn't send in a stretch and
* when possible sends this number in a PERF_RECORD_LOST event. The number of