diff --git a/rpcs3/Emu/Cell/lv2/sys_rsx.h b/rpcs3/Emu/Cell/lv2/sys_rsx.h
index df8cee938f..ba437936c2 100644
--- a/rpcs3/Emu/Cell/lv2/sys_rsx.h
+++ b/rpcs3/Emu/Cell/lv2/sys_rsx.h
@@ -68,20 +68,20 @@ struct RsxDmaControl
 	be_t<u32> unk1;
 };
 
-struct RsxSemaphore
+struct alignas(16) RsxSemaphore
 {
 	be_t<u32> val;
 	be_t<u32> pad;
 	be_t<u64> timestamp;
 };
 
-struct RsxNotify
+struct alignas(16) RsxNotify
 {
 	be_t<u64> timestamp;
 	be_t<u64> zero;
 };
 
-struct RsxReport
+struct alignas(16) RsxReport
 {
 	be_t<u64> timestamp;
 	be_t<u32> val;
diff --git a/rpcs3/Emu/RSX/GCM.h b/rpcs3/Emu/RSX/GCM.h
index 68e85791d7..3e0c4340df 100644
--- a/rpcs3/Emu/RSX/GCM.h
+++ b/rpcs3/Emu/RSX/GCM.h
@@ -65,7 +65,7 @@ struct CellGcmSurface
 	be_t<u16> y;
 };
 
-struct CellGcmReportData
+struct alignas(16) CellGcmReportData
 {
 	be_t<u64> timer;
 	be_t<u32> value;
diff --git a/rpcs3/Emu/RSX/RSXThread.cpp b/rpcs3/Emu/RSX/RSXThread.cpp
index 17e033af73..90b5c6f76b 100644
--- a/rpcs3/Emu/RSX/RSXThread.cpp
+++ b/rpcs3/Emu/RSX/RSXThread.cpp
@@ -2340,10 +2340,7 @@ namespace rsx
 			}
 		}
 
-		vm::ptr<CellGcmReportData> result = sink;
-		result->value = value;
-		result->padding = 0;
-		result->timer = timestamp();
+		vm::_ref<atomic_t<CellGcmReportData>>(sink).store({ timestamp(), value, 0});
 	}
 
 	void thread::sync()
@@ -2819,7 +2816,7 @@ namespace rsx
 			m_cycles_delay = max_zcull_delay_us;
 		}
 
-		void ZCULL_control::write(vm::addr_t sink, u32 timestamp, u32 type, u32 value)
+		void ZCULL_control::write(vm::addr_t sink, u64 timestamp, u32 type, u32 value)
 		{
 			verify(HERE), sink;
 
@@ -2840,10 +2837,7 @@ namespace rsx
 				break;
 			}
 
-			vm::ptr<CellGcmReportData> out = sink;
-			out->value = value;
-			out->timer = timestamp;
-			out->padding = 0;
+			vm::_ref<atomic_t<CellGcmReportData>>(sink).store({ timestamp, value, 0});
 		}
 
 		void ZCULL_control::sync(::rsx::thread* ptimer)
@@ -2888,7 +2882,7 @@ namespace rsx
 
 					if (!writer.forwarder)
 						//No other queries in the chain, write result
-						write(writer.sink, (u32)ptimer->timestamp(), writer.type, result);
+						write(writer.sink, ptimer->timestamp(), writer.type, result);
 
 					processed++;
 				}
@@ -3049,7 +3043,7 @@ namespace rsx
 				//only zpass supported right now
 				if (!writer.forwarder)
 					//No other queries in the chain, write result
-					write(writer.sink, (u32)ptimer->timestamp(), writer.type, result);
+					write(writer.sink, ptimer->timestamp(), writer.type, result);
 
 				processed++;
 			}
diff --git a/rpcs3/Emu/RSX/RSXThread.h b/rpcs3/Emu/RSX/RSXThread.h
index 565aad16dc..aaa27e233c 100644
--- a/rpcs3/Emu/RSX/RSXThread.h
+++ b/rpcs3/Emu/RSX/RSXThread.h
@@ -371,7 +371,7 @@ namespace rsx
 			void set_enabled(class ::rsx::thread* ptimer, bool state);
 			void set_active(class ::rsx::thread* ptimer, bool state);
 
-			void write(vm::addr_t sink, u32 timestamp, u32 type, u32 value);
+			void write(vm::addr_t sink, u64 timestamp, u32 type, u32 value);
 
 			// Read current zcull statistics into the address provided
 			void read_report(class ::rsx::thread* ptimer, vm::addr_t sink, u32 type);
diff --git a/rpcs3/Emu/RSX/rsx_methods.cpp b/rpcs3/Emu/RSX/rsx_methods.cpp
index 97fb6fd1ef..39aa5d359a 100644
--- a/rpcs3/Emu/RSX/rsx_methods.cpp
+++ b/rpcs3/Emu/RSX/rsx_methods.cpp
@@ -180,9 +180,11 @@ namespace rsx
 				return;
 			}
 
-			auto& notify = vm::_ref<RsxNotify>(verify(HERE, RSXIOMem.RealAddr(0xf100000 + (index * 0x40))));
-			notify.zero = 0;
-			notify.timestamp = rsx->timestamp();
+			vm::_ref<atomic_t<RsxNotify>>(verify(HERE, RSXIOMem.RealAddr(0xf100000 + (index * 0x40)))).store(
+			{
+				rsx->timestamp(),
+				0
+			});
 		}
 
 		void texture_read_semaphore_release(thread* rsx, u32 _reg, u32 arg)
@@ -196,10 +198,12 @@ namespace rsx
 				//
 			}
 
-			auto& sema = vm::_ref<RsxSemaphore>(get_address(offset, method_registers.semaphore_context_dma_4097()));
-			sema.val = arg;
-			sema.pad = 0;
-			sema.timestamp = rsx->timestamp();
+			vm::_ref<atomic_t<RsxSemaphore>>(get_address(offset, method_registers.semaphore_context_dma_4097())).store(
+			{
+				arg,
+				0,
+				rsx->timestamp()
+			});
 		}
 
 		void back_end_write_semaphore_release(thread* rsx, u32 _reg, u32 arg)
@@ -213,10 +217,12 @@ namespace rsx
 
 			rsx->sync();
 			u32 val = (arg & 0xff00ff00) | ((arg & 0xff) << 16) | ((arg >> 16) & 0xff);
-			auto& sema = vm::_ref<RsxSemaphore>(get_address(offset, method_registers.semaphore_context_dma_4097()));
-			sema.val = val;
-			sema.pad = 0;
-			sema.timestamp = rsx->timestamp();
+			vm::_ref<atomic_t<RsxSemaphore>>(get_address(offset, method_registers.semaphore_context_dma_4097())).store(
+			{
+				val,
+				0,
+				rsx->timestamp()
+			});
 		}
 
 		/**
@@ -509,8 +515,6 @@ namespace rsx
 				return;
 			}
 
-			vm::ptr<CellGcmReportData> result = address_ptr;
-
 			switch (type)
 			{
 			case CELL_GCM_ZPASS_PIXEL_CNT:
@@ -522,8 +526,12 @@ namespace rsx
 				break;
 			default:
 				LOG_ERROR(RSX, "NV4097_GET_REPORT: Bad type %d", type);
-				result->timer = rsx->timestamp();
-				result->padding = 0;
+
+				vm::_ref<atomic_t<CellGcmReportData>>(address_ptr).atomic_op([&](CellGcmReportData& data)
+				{
+					data.timer = rsx->timestamp();
+					data.padding = 0;
+				});
 				break;
 			}
 		}