Add disp_dpu_underrun ftrace event

Bug: 391090955 Test: traceconv & ui can parse disp_dpu_underrun event Change-Id: Ifc4713673e8ff4c612de8ba8a6917dd0a4b96e28
google · Feb 12, 2025 · 88fb406 · 88fb406
1 parent 898c553
commit 88fb406
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Showing 8 changed files with 54 additions and 1 deletion.
diff --git a/protos/perfetto/trace/ftrace/dpu.proto b/protos/perfetto/trace/ftrace/dpu.proto
@@ -27,3 +27,8 @@ message DpuDsiTxFtraceEvent {
   optional uint32 last = 3;
   optional uint32 delay_ms = 4;
 }
+message DpuDispDpuUnderrunFtraceEvent {
+  optional int32 id = 1;
+  optional int32 frames_pending = 2;
+  optional int32 vsync_count = 3;
+}
diff --git a/protos/perfetto/trace/ftrace/ftrace_event.proto b/protos/perfetto/trace/ftrace/ftrace_event.proto
@@ -689,5 +689,6 @@ message FtraceEvent {
     BlockIoStartFtraceEvent block_io_start = 546;
     BlockIoDoneFtraceEvent block_io_done = 547;
     MaliGpuPowerStateFtraceEvent mali_gpu_power_state = 548;
+    DpuDispDpuUnderrunFtraceEvent dpu_disp_dpu_underrun = 549;
   }
 }
diff --git a/protos/perfetto/trace/perfetto_trace.proto b/protos/perfetto/trace/perfetto_trace.proto
@@ -7909,6 +7909,11 @@ message DpuDsiTxFtraceEvent {
   optional uint32 last = 3;
   optional uint32 delay_ms = 4;
 }
+message DpuDispDpuUnderrunFtraceEvent {
+  optional int32 id = 1;
+  optional int32 frames_pending = 2;
+  optional int32 vsync_count = 3;
+}
 
 // End of protos/perfetto/trace/ftrace/dpu.proto
 
@@ -11670,6 +11675,7 @@ message FtraceEvent {
     BlockIoStartFtraceEvent block_io_start = 546;
     BlockIoDoneFtraceEvent block_io_done = 547;
     MaliGpuPowerStateFtraceEvent mali_gpu_power_state = 548;
+    DpuDispDpuUnderrunFtraceEvent dpu_disp_dpu_underrun = 549;
   }
 }
 

diff --git a/src/tools/ftrace_proto_gen/event_list b/src/tools/ftrace_proto_gen/event_list
@@ -542,3 +542,4 @@ fs/open_exec
 block/block_io_start
 block/block_io_done
 mali/gpu_power_state
+dpu/disp_dpu_underrun
diff --git a/src/trace_processor/importers/ftrace/ftrace_descriptors.cc b/src/trace_processor/importers/ftrace/ftrace_descriptors.cc
@@ -24,7 +24,7 @@ namespace perfetto {
 namespace trace_processor {
 namespace {
 
-std::array<FtraceMessageDescriptor, 549> descriptors{{
+std::array<FtraceMessageDescriptor, 550> descriptors{{
     {nullptr, 0, {}},
     {nullptr, 0, {}},
     {nullptr, 0, {}},
@@ -6074,6 +6074,16 @@ std::array<FtraceMessageDescriptor, 549> descriptors{{
             {"to_state", ProtoSchemaType::kInt32},
         },
     },
+    {
+        "dpu_disp_dpu_underrun",
+        3,
+        {
+            {},
+            {"id", ProtoSchemaType::kInt32},
+            {"frames_pending", ProtoSchemaType::kInt32},
+            {"vsync_count", ProtoSchemaType::kInt32},
+        },
+    },
 }};
 
 }  // namespace

diff --git a/src/traced/probes/ftrace/event_info.cc b/src/traced/probes/ftrace/event_info.cc
@@ -1708,6 +1708,22 @@ std::vector<Event> GetStaticEventInfo() {
        kUnsetFtraceId,
        494,
        kUnsetSize},
+      {"disp_dpu_underrun",
+       "dpu",
+       {
+           {kUnsetOffset, kUnsetSize, FtraceFieldType::kInvalidFtraceFieldType,
+            "id", 1, ProtoSchemaType::kInt32,
+            TranslationStrategy::kInvalidTranslationStrategy},
+           {kUnsetOffset, kUnsetSize, FtraceFieldType::kInvalidFtraceFieldType,
+            "frames_pending", 2, ProtoSchemaType::kInt32,
+            TranslationStrategy::kInvalidTranslationStrategy},
+           {kUnsetOffset, kUnsetSize, FtraceFieldType::kInvalidFtraceFieldType,
+            "vsync_count", 3, ProtoSchemaType::kInt32,
+            TranslationStrategy::kInvalidTranslationStrategy},
+       },
+       kUnsetFtraceId,
+       549,
+       kUnsetSize},
       {"drm_vblank_event",
        "drm",
        {

diff --git a/src/traced/probes/ftrace/ftrace_config_muxer.cc b/src/traced/probes/ftrace/ftrace_config_muxer.cc
@@ -250,6 +250,7 @@ std::set<GroupAndName> FtraceConfigMuxer::GetFtraceEvents(
 
         AddEventGroup(table, "dpu", &events);
         InsertEvent("dpu", "tracing_mark_write", &events);
+        InsertEvent("dpu", "disp_dpu_underrun", &events);
 
         AddEventGroup(table, "g2d", &events);
         InsertEvent("g2d", "tracing_mark_write", &events);

diff --git a/src/traced/probes/ftrace/test/data/synthetic/events/dpu/disp_dpu_underrun/format b/src/traced/probes/ftrace/test/data/synthetic/events/dpu/disp_dpu_underrun/format
@@ -0,0 +1,13 @@
+name: disp_dpu_underrun
+ID: 1179
+format:
+	field:unsigned short common_type;	offset:0;	size:2;	signed:0;
+	field:unsigned char common_flags;	offset:2;	size:1;	signed:0;
+	field:unsigned char common_preempt_count;	offset:3;	size:1;	signed:0;
+	field:int common_pid;	offset:4;	size:4;	signed:1;
+
+	field:int id;	offset:8;	size:4;	signed:1;
+	field:int frames_pending;	offset:12;	size:4;	signed:1;
+	field:int vsync_count;	offset:16;	size:4;	signed:1;
+
+print fmt: "id: %d frames_pending: %d vsync_count: %d", REC->id, REC->frames_pending, REC->vsync_count