to ensure that we're not unlocking submits too early

src/core/libraries/gnmdriver/gnmdriver.cpp

@@ -1455,6 +1455,7 @@ int PS4_SYSV_ABI sceGnmSubmitDone() {
     if (!liverpool->IsGpuIdle()) {
         submission_lock = true;
     }
+    liverpool->NotifySubmitDone();
     return ORBIS_OK;
 }
 

src/video_core/amdgpu/liverpool.cpp

@@ -61,7 +61,11 @@ void Liverpool::Process(std::stop_token stoken) {
                 --num_submits;
             }
         }
-        num_submits.notify_all();
+
+        if (submit_done) {
+            num_submits.notify_all();
+            submit_done = false;
+        }
     }
 }
 

src/video_core/amdgpu/liverpool.h

@@ -777,6 +777,10 @@ public:
         return num_submits == 0;
     }
 
+    void NotifySubmitDone() {
+        submit_done = true;
+    }
+
     void BindRasterizer(Vulkan::Rasterizer* rasterizer_) {
         rasterizer = rasterizer_;
     }
@@ -841,6 +845,7 @@ private:
     Vulkan::Rasterizer* rasterizer{};
     std::jthread process_thread{};
     std::atomic<u32> num_submits{};
+    std::atomic<bool> submit_done{};
 };
 
 static_assert(GFX6_3D_REG_INDEX(ps_program) == 0x2C08);