Implement Async downloads in normal and fix a few issues.

src/video_core/buffer_cache/buffer_cache.h

@@ -22,6 +22,8 @@ BufferCache<P>::BufferCache(VideoCore::RasterizerInterface& rasterizer_,
     void(slot_buffers.insert(runtime, NullBufferParams{}));
     common_ranges.clear();
 
+    active_async_buffers = IMPLEMENTS_ASYNC_DOWNLOADS && !Settings::IsGPULevelHigh();
+
     if (!runtime.CanReportMemoryUsage()) {
         minimum_memory = DEFAULT_EXPECTED_MEMORY;
         critical_memory = DEFAULT_CRITICAL_MEMORY;
@@ -72,6 +74,8 @@ void BufferCache<P>::TickFrame() {
     uniform_cache_hits[0] = 0;
     uniform_cache_shots[0] = 0;
 
+    active_async_buffers = IMPLEMENTS_ASYNC_DOWNLOADS && !Settings::IsGPULevelHigh();
+
     const bool skip_preferred = hits * 256 < shots * 251;
     uniform_buffer_skip_cache_size = skip_preferred ? DEFAULT_SKIP_CACHE_SIZE : 0;
 
@@ -130,7 +134,7 @@ void BufferCache<P>::WaitOnAsyncFlushes(VAddr cpu_addr, u64 size) {
 
 template <class P>
 void BufferCache<P>::ClearDownload(IntervalType subtract_interval) {
-    async_downloads -= std::make_pair(subtract_interval, std::numeric_limits<int>::max());
+    RemoveEachInOverlapCounter(async_downloads, subtract_interval, -1024);
     uncommitted_ranges.subtract(subtract_interval);
     pending_ranges.subtract(subtract_interval);
     for (auto& interval_set : committed_ranges) {
@@ -173,18 +177,14 @@ bool BufferCache<P>::DMACopy(GPUVAddr src_address, GPUVAddr dest_address, u64 am
     }};
 
     boost::container::small_vector<IntervalType, 4> tmp_intervals;
-    const bool is_high_accuracy =
-        Settings::values.gpu_accuracy.GetValue() == Settings::GPUAccuracy::High;
     auto mirror = [&](VAddr base_address, VAddr base_address_end) {
         const u64 size = base_address_end - base_address;
         const VAddr diff = base_address - *cpu_src_address;
         const VAddr new_base_address = *cpu_dest_address + diff;
         const IntervalType add_interval{new_base_address, new_base_address + size};
         tmp_intervals.push_back(add_interval);
-        if (is_high_accuracy) {
         uncommitted_ranges.add(add_interval);
         pending_ranges.add(add_interval);
-        }
     };
     ForEachInRangeSet(common_ranges, *cpu_src_address, amount, mirror);
     // This subtraction in this order is important for overlapping copies.
@@ -468,7 +468,7 @@ void BufferCache<P>::CommitAsyncFlushesHigh() {
     AccumulateFlushes();
 
     if (committed_ranges.empty()) {
-        if constexpr (IMPLEMENTS_ASYNC_DOWNLOADS) {
+        if (active_async_buffers) {
             async_buffers.emplace_back(std::optional<Async_Buffer>{});
         }
         return;
@@ -529,11 +529,12 @@ void BufferCache<P>::CommitAsyncFlushesHigh() {
     }
     committed_ranges.clear();
     if (downloads.empty()) {
-        if constexpr (IMPLEMENTS_ASYNC_DOWNLOADS) {
+        if (active_async_buffers) {
             async_buffers.emplace_back(std::optional<Async_Buffer>{});
         }
         return;
     }
+    if (active_async_buffers) {
         if constexpr (IMPLEMENTS_ASYNC_DOWNLOADS) {
             auto download_staging = runtime.DownloadStagingBuffer(total_size_bytes, true);
             boost::container::small_vector<BufferCopy, 4> normalized_copies;
@@ -554,6 +555,7 @@ void BufferCache<P>::CommitAsyncFlushesHigh() {
             runtime.PostCopyBarrier();
             pending_downloads.emplace_back(std::move(normalized_copies));
             async_buffers.emplace_back(download_staging);
+        }
     } else {
         if constexpr (USE_MEMORY_MAPS) {
             auto download_staging = runtime.DownloadStagingBuffer(total_size_bytes);
@@ -624,7 +626,8 @@ void BufferCache<P>::PopAsyncBuffers() {
                         common_ranges.subtract(base_interval);
                     }
                 });
-            async_downloads -= std::make_pair(IntervalType(cpu_addr, cpu_addr + copy.size), 1);
+            const IntervalType subtract_interval{cpu_addr, cpu_addr + copy.size};
+            RemoveEachInOverlapCounter(async_downloads, subtract_interval, -1);
         }
         runtime.FreeDeferredStagingBuffer(*async_buffer);
         async_buffers.pop_front();
@@ -1198,11 +1201,9 @@ void BufferCache<P>::MarkWrittenBuffer(BufferId buffer_id, VAddr cpu_addr, u32 s
 
     const IntervalType base_interval{cpu_addr, cpu_addr + size};
     common_ranges.add(base_interval);
-    if (Settings::values.gpu_accuracy.GetValue() == Settings::GPUAccuracy::High) {
     uncommitted_ranges.add(base_interval);
     pending_ranges.add(base_interval);
 }
-}
 
 template <class P>
 BufferId BufferCache<P>::FindBuffer(VAddr cpu_addr, u32 size) {
@@ -1542,7 +1543,7 @@ void BufferCache<P>::DownloadBufferMemory(Buffer& buffer, VAddr cpu_addr, u64 si
                     .size = new_size,
                 });
                 // Align up to avoid cache conflicts
-                constexpr u64 align = 8ULL;
+                constexpr u64 align = 64ULL;
                 constexpr u64 mask = ~(align - 1ULL);
                 total_size_bytes += (new_size + align - 1) & mask;
                 largest_copy = std::max(largest_copy, new_size);

src/video_core/buffer_cache/buffer_cache_base.h

@@ -345,13 +345,30 @@ private:
             if (inter_addr < start_address) {
                 inter_addr = start_address;
             }
-            if (it->second <= 0) {
-                __debugbreak();
-            }
             func(inter_addr, inter_addr_end, it->second);
         }
     }
 
+    void RemoveEachInOverlapCounter(OverlapCounter& current_range, const IntervalType search_interval, int subtract_value) {
+        bool any_removals = false;
+        current_range.add(std::make_pair(search_interval, subtract_value));
+        do {
+            any_removals = false;
+            auto it = current_range.lower_bound(search_interval);
+            if (it == current_range.end()) {
+                return;
+            }
+            auto end_it = current_range.upper_bound(search_interval);
+            for (; it != end_it; it++) {
+                if (it->second <= 0) {
+                    any_removals = true;
+                    current_range.erase(it);
+                    break;
+                }
+            }
+        } while (any_removals);
+    }
+
     static bool IsRangeGranular(VAddr cpu_addr, size_t size) {
         return (cpu_addr & ~Core::Memory::YUZU_PAGEMASK) ==
                ((cpu_addr + size) & ~Core::Memory::YUZU_PAGEMASK);
@@ -554,6 +571,8 @@ private:
     u64 minimum_memory = 0;
     u64 critical_memory = 0;
 
+    bool active_async_buffers = false;
+
     std::array<BufferId, ((1ULL << 39) >> PAGE_BITS)> page_table;
 };
 

src/video_core/buffer_cache/word_manager.h

@@ -273,7 +273,7 @@ public:
                 untracked_words[word_index] &= ~bits;
                 NotifyRasterizer<true>(word_index, current_bits, ~u64{0});
             }
-            const u64 word = current_word;
+            const u64 word = current_word & ~(type == Type::GPU ? untracked_words[word_index] : 0);
             u64 page = page_begin;
             page_begin = 0;
 
@@ -321,6 +321,7 @@ public:
     [[nodiscard]] bool IsRegionModified(u64 offset, u64 size) const noexcept {
         static_assert(type != Type::Untracked);
 
+        const u64* const untracked_words = Array<Type::Untracked>();
         const u64* const state_words = Array<type>();
         const u64 num_query_words = size / BYTES_PER_WORD + 1;
         const u64 word_begin = offset / BYTES_PER_WORD;
@@ -328,7 +329,8 @@ public:
         const u64 page_limit = Common::DivCeil(offset + size, BYTES_PER_PAGE);
         u64 page_index = (offset / BYTES_PER_PAGE) % PAGES_PER_WORD;
         for (u64 word_index = word_begin; word_index < word_end; ++word_index, page_index = 0) {
-            const u64 word = state_words[word_index];
+            const u64 off_word = type == Type::GPU ? untracked_words[word_index] : 0;
+            const u64 word = state_words[word_index] & ~off_word;
             if (word == 0) {
                 continue;
             }