nvhost_ctrl: Stub out IocCtrlEventKill

src/core/hle/service/nvdrv/devices/nvhost_ctrl.cpp

@@ -38,6 +38,8 @@ NvResult nvhost_ctrl::Ioctl1(DeviceFD fd, Ioctl command, const std::vector<u8>&
             return IocCtrlEventRegister(input, output);
         case 0x20:
             return IocCtrlEventUnregister(input, output);
+        case 0x21:
+            return IocCtrlEventKill(input, output);
         }
         break;
     default:
@@ -221,4 +223,22 @@ NvResult nvhost_ctrl::IocCtrlClearEventWait(const std::vector<u8>& input, std::v
     return NvResult::Success;
 }
 
+NvResult nvhost_ctrl::IocCtrlEventKill(const std::vector<u8>& input, std::vector<u8>& output) {
+    IocCtrlEventKillParams params{};
+    std::memcpy(&params, input.data(), sizeof(params));
+
+    LOG_WARNING(Service_NVDRV, "called, user_events={}", params.user_events);
+
+    for (u32 event_id = 0; event_id < MaxNvEvents; ++event_id) {
+        if ((params.user_events & (1ULL << (int)event_id)) != 0) {
+            if (!events_interface.registered[event_id]) {
+                continue;
+            }
+            events_interface.UnregisterEvent(event_id);
+        }
+    }
+
+    return NvResult::Success;
+}
+
 } // namespace Service::Nvidia::Devices

src/core/hle/service/nvdrv/devices/nvhost_ctrl.h

@@ -119,16 +119,17 @@ private:
     static_assert(sizeof(IocCtrlEventUnregisterParams) == 4,
                   "IocCtrlEventUnregisterParams is incorrect size");
 
-    struct IocCtrlEventKill {
+    struct IocCtrlEventKillParams {
         u64_le user_events{};
     };
-    static_assert(sizeof(IocCtrlEventKill) == 8, "IocCtrlEventKill is incorrect size");
+    static_assert(sizeof(IocCtrlEventKillParams) == 8, "IocCtrlEventKillParams is incorrect size");
 
     NvResult NvOsGetConfigU32(const std::vector<u8>& input, std::vector<u8>& output);
     NvResult IocCtrlEventWait(const std::vector<u8>& input, std::vector<u8>& output, bool is_async);
     NvResult IocCtrlEventRegister(const std::vector<u8>& input, std::vector<u8>& output);
     NvResult IocCtrlEventUnregister(const std::vector<u8>& input, std::vector<u8>& output);
     NvResult IocCtrlClearEventWait(const std::vector<u8>& input, std::vector<u8>& output);
+    NvResult IocCtrlEventKill(const std::vector<u8>& input, std::vector<u8>& output);
 
     EventInterface& events_interface;
     SyncpointManager& syncpoint_manager;