From ae833aa9c0c26865c2b7d091a09c19212e894018 Mon Sep 17 00:00:00 2001
From: Fernando Sahmkow <fsahmkow27@gmail.com>
Date: Wed, 7 Feb 2024 23:47:42 +0100
Subject: [PATCH] SMMU: Ensure the backing address range matches the current

---
 src/core/device_memory_manager.inc | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/core/device_memory_manager.inc b/src/core/device_memory_manager.inc
index b026f4220..6dfee806c 100644
--- a/src/core/device_memory_manager.inc
+++ b/src/core/device_memory_manager.inc
@@ -532,6 +532,7 @@ void DeviceMemoryManager<Traits>::UpdatePagesCachedCount(DAddr addr, size_t size
             cache_bytes = 0;
         }
     };
+    size_t old_vpage = (base_vaddress >> Memory::YUZU_PAGEBITS) - 1;
     for (; page != page_end; ++page) {
         CounterAtomicType& count = cached_pages->at(page >> subentries_shift).Count(page);
         auto [asid_2, vpage] = ExtractCPUBacking(page);
@@ -547,6 +548,12 @@ void DeviceMemoryManager<Traits>::UpdatePagesCachedCount(DAddr addr, size_t size
             memory_device_inter = registered_processes[asid_2.id];
         }
 
+        if (vpage != old_vpage + 1) [[unlikely]] {
+            release_pending();
+        }
+
+        old_vpage = vpage;
+
         // Adds or subtracts 1, as count is a unsigned 8-bit value
         count.fetch_add(static_cast<CounterType>(delta), std::memory_order_release);