GPU: Address Feedback.

src/video_core/engines/maxwell_3d.cpp

@@ -531,10 +531,7 @@ void Maxwell3D::StampQueryResult(u64 payload, bool long_query) {
         // Write the 128-bit result structure in long mode. Note: We emulate an infinitely fast
         // GPU, this command may actually take a while to complete in real hardware due to GPU
         // wait queues.
-        LongQueryResult query_result{};
-        query_result.value = payload;
-        // TODO(Subv): Generate a real GPU timestamp and write it here instead of CoreTiming
-        query_result.timestamp = system.GPU().GetTicks();
+        LongQueryResult query_result{payload, system.GPU().GetTicks()};
         memory_manager.WriteBlock(sequence_address, &query_result, sizeof(query_result));
     } else {
         memory_manager.Write<u32>(sequence_address, static_cast<u32>(payload));
@@ -548,7 +545,7 @@ void Maxwell3D::ProcessQueryGet() {
 
     switch (regs.query.query_get.operation) {
     case Regs::QueryOperation::Release: {
-        u64 result = regs.query.query_sequence;
+        const u64 result = regs.query.query_sequence;
         StampQueryResult(result, regs.query.query_get.short_query == 0);
         break;
     }

src/video_core/gpu.cpp

@@ -123,15 +123,17 @@ bool GPU::CancelSyncptInterrupt(const u32 syncpoint_id, const u32 value) {
     return true;
 }
 
-// This values were reversed engineered by fincs from NVN
-// The gpu clock is reported in units of 385/625 nanoseconds
-constexpr u64 gpu_ticks_num = 384;
-constexpr u64 gpu_ticks_den = 625;
-
 u64 GPU::GetTicks() const {
+    // This values were reversed engineered by fincs from NVN
+    // The gpu clock is reported in units of 385/625 nanoseconds
+    constexpr u64 gpu_ticks_num = 384;
+    constexpr u64 gpu_ticks_den = 625;
+
     const u64 cpu_ticks = system.CoreTiming().GetTicks();
     const u64 nanoseconds = Core::Timing::CyclesToNs(cpu_ticks).count();
-    return (nanoseconds * gpu_ticks_num) / gpu_ticks_den;
+    const u64 nanoseconds_num = nanoseconds / gpu_ticks_den;
+    const u64 nanoseconds_rem = nanoseconds % gpu_ticks_den;
+    return nanoseconds_num * gpu_ticks_num + (nanoseconds_rem * gpu_ticks_num) / gpu_ticks_den;
 }
 
 void GPU::FlushCommands() {