From 0d83fbf61b32b8cc619956c1c5c31b592fcb8703 Mon Sep 17 00:00:00 2001
From: IndecisiveTurtle <47210458+raphaelthegreat@users.noreply.github.com>
Date: Mon, 23 Jun 2025 23:34:04 +0300
Subject: [PATCH] liverpool: Dont commit flushes on bottom of pipe event

Typically used for GPU to GPU sync then host
---
 src/video_core/amdgpu/liverpool.cpp | 6 +++---
 src/video_core/amdgpu/pm4_cmds.h    | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/video_core/amdgpu/liverpool.cpp b/src/video_core/amdgpu/liverpool.cpp
index fa6102c96..cf7255458 100644
--- a/src/video_core/amdgpu/liverpool.cpp
+++ b/src/video_core/amdgpu/liverpool.cpp
@@ -627,10 +627,10 @@ Liverpool::Task Liverpool::ProcessGraphics(std::span<const u32> dcb, std::span<c
             }
             case PM4ItOpcode::EventWriteEop: {
                 const auto* event_eop = reinterpret_cast<const PM4CmdEventWriteEop*>(header);
-                if (rasterizer) {
+                if (rasterizer && event_eop->event_type != EventType::BottomOfPipeTs) {
                     rasterizer->CommitPendingDownloads();
+                    ++fence_tick;
                 }
-                ++fence_tick;
                 event_eop->SignalFence([](void* address, u64 data, u32 num_bytes) {
                     auto* memory = Core::Memory::Instance();
                     if (!memory->TryWriteBacking(address, &data, num_bytes)) {
@@ -1024,9 +1024,9 @@ Liverpool::Task Liverpool::ProcessCompute(std::span<const u32> acb, u32 vqid) {
         }
         case PM4ItOpcode::ReleaseMem: {
             const auto* release_mem = reinterpret_cast<const PM4CmdReleaseMem*>(header);
-            ++fence_tick;
             if (rasterizer) {
                 rasterizer->CommitPendingDownloads();
+                ++fence_tick;
             }
             release_mem->SignalFence(static_cast<Platform::InterruptId>(queue.pipe_id));
             break;
diff --git a/src/video_core/amdgpu/pm4_cmds.h b/src/video_core/amdgpu/pm4_cmds.h
index 23c1b8f21..586980113 100644
--- a/src/video_core/amdgpu/pm4_cmds.h
+++ b/src/video_core/amdgpu/pm4_cmds.h
@@ -421,7 +421,7 @@ struct PM4CmdEventWriteEop {
     PM4Type3Header header;
     union {
         u32 event_control;
-        BitField<0, 6, u32> event_type;  ///< Event type written to VGT_EVENT_INITIATOR
+        BitField<0, 6, EventType> event_type;  ///< Event type written to VGT_EVENT_INITIATOR
         BitField<8, 4, u32> event_index; ///< Event index
     };
     u32 address_lo;