video_core: tune garbage collection aggressiveness

src/video_core/buffer_cache/buffer_cache.h

@@ -30,8 +30,8 @@ BufferCache<P>::BufferCache(VideoCore::RasterizerInterface& rasterizer_,
     }
 
     const s64 device_memory = static_cast<s64>(runtime.GetDeviceLocalMemory());
-    const s64 min_spacing_expected = device_memory - 1_GiB - 512_MiB;
-    const s64 min_spacing_critical = device_memory - 1_GiB;
+    const s64 min_spacing_expected = device_memory - 1_GiB;
+    const s64 min_spacing_critical = device_memory - 512_MiB;
     const s64 mem_threshold = std::min(device_memory, TARGET_THRESHOLD);
     const s64 min_vacancy_expected = (6 * mem_threshold) / 10;
     const s64 min_vacancy_critical = (3 * mem_threshold) / 10;

src/video_core/texture_cache/texture_cache.h

@@ -49,8 +49,8 @@ TextureCache<P>::TextureCache(Runtime& runtime_, VideoCore::RasterizerInterface&
 
     if constexpr (HAS_DEVICE_MEMORY_INFO) {
         const s64 device_memory = static_cast<s64>(runtime.GetDeviceLocalMemory());
-        const s64 min_spacing_expected = device_memory - 1_GiB - 512_MiB;
-        const s64 min_spacing_critical = device_memory - 1_GiB;
+        const s64 min_spacing_expected = device_memory - 1_GiB;
+        const s64 min_spacing_critical = device_memory - 512_MiB;
         const s64 mem_threshold = std::min(device_memory, TARGET_THRESHOLD);
         const s64 min_vacancy_expected = (6 * mem_threshold) / 10;
         const s64 min_vacancy_critical = (3 * mem_threshold) / 10;
@@ -86,10 +86,12 @@ void TextureCache<P>::RunGarbageCollector() {
             // used by the async decoder thread.
             return false;
         }
+        if (!aggressive_mode && True(image.flags & ImageFlagBits::CostlyLoad)) {
+            return false;
+        }
         const bool must_download =
             image.IsSafeDownload() && False(image.flags & ImageFlagBits::BadOverlap);
-        if (!high_priority_mode &&
-            (must_download || True(image.flags & ImageFlagBits::CostlyLoad))) {
+        if (!high_priority_mode && must_download) {
             return false;
         }
         if (must_download) {