From 230c7fb8a8e343eb6604804ba45f3bf826f25076 Mon Sep 17 00:00:00 2001
From: "Unknown W. Brackets" <checkins@unknownbrackets.org>
Date: Sun, 25 May 2014 18:52:31 -0700
Subject: [PATCH] Don't block duplicate enqueues when intr pending.

Fixes #6138.
---
 GPU/GPUCommon.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/GPU/GPUCommon.cpp b/GPU/GPUCommon.cpp
index 25313b46d6..dfbc12b5cc 100644
--- a/GPU/GPUCommon.cpp
+++ b/GPU/GPUCommon.cpp
@@ -214,7 +214,9 @@ u32 GPUCommon::EnqueueList(u32 listpc, u32 stall, int subIntrBase, PSPPointer<Ps
 		//stack = NULL;
 		for (int i = 0; i < DisplayListMaxCount; ++i) {
 			if (dls[i].state != PSP_GE_DL_STATE_NONE && dls[i].state != PSP_GE_DL_STATE_COMPLETED) {
-				if (dls[i].pc == listpc) {
+				// Logically, if the CPU has not interrupted yet, it hasn't seen the latest pc either.
+				// Exit enqueues right after an END, which fails without ignoring pendingInterrupt lists.
+				if (dls[i].pc == listpc && !dls[i].pendingInterrupt) {
 					ERROR_LOG(G3D, "sceGeListEnqueue: can't enqueue, list address %08X already used", listpc);
 					return 0x80000021;
 				}