From 7a76fb14697e4559d425fc13aa3470e2039b4963 Mon Sep 17 00:00:00 2001
From: Nekotekina <nekotekina@gmail.com>
Date: Tue, 13 Oct 2020 11:05:49 +0300
Subject: [PATCH] PPU: Add loop logging in STWCX/STDCX

---
 rpcs3/Emu/Cell/PPUThread.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/rpcs3/Emu/Cell/PPUThread.cpp b/rpcs3/Emu/Cell/PPUThread.cpp
index b7d416cd73..1bcd77b083 100644
--- a/rpcs3/Emu/Cell/PPUThread.cpp
+++ b/rpcs3/Emu/Cell/PPUThread.cpp
@@ -1648,7 +1648,7 @@ static bool ppu_store_reservation(ppu_thread& ppu, u32 addr, u64 reg_value)
 		// Aligned 8-byte reservations will be used here
 		addr &= -8;
 
-		while (true)
+		for (u64 count = 0;; count++)
 		{
 			auto [_old, _ok] = res.fetch_op([&](u64& r)
 			{
@@ -1669,6 +1669,11 @@ static bool ppu_store_reservation(ppu_thread& ppu, u32 addr, u64 reg_value)
 
 			if (_ok)
 			{
+				if (count >= 20)
+				{
+					ppu_log.notice("%s took too long (%u):", sizeof(T) == 4 ? "STWCX" : "STDCX", count);
+				}
+
 				break;
 			}