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VideoCore: Rework Garbage Collection.

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This commit is contained in:
Fernando Sahmkow 2021-08-15 15:35:53 +02:00
parent c20ea89390
commit d540d284b5
6 changed files with 213 additions and 101 deletions
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2
src/video_core/texture_cache/image_base.h
View file

@ -80,7 +80,7 @@ struct ImageBase {
VAddr cpu_addr_end = 0;
u64 modification_tick = 0;
u64 frame_tick = 0;
size_t lru_index = ~0;
std::array<u32, MAX_MIP_LEVELS> mip_level_offsets{};

89
src/video_core/texture_cache/texture_cache.h
View file

@ -43,8 +43,6 @@ TextureCache<P>::TextureCache(Runtime& runtime_, VideoCore::RasterizerInterface&
void(slot_image_views.insert(runtime, NullImageParams{}));
void(slot_samplers.insert(runtime, sampler_descriptor));
deletion_iterator = slot_images.begin();
if constexpr (HAS_DEVICE_MEMORY_INFO) {
const auto device_memory = runtime.GetDeviceLocalMemory();
const u64 possible_expected_memory = (device_memory * 3) / 10;
@ -64,65 +62,33 @@ template <class P>
void TextureCache<P>::RunGarbageCollector() {
const bool high_priority_mode = total_used_memory >= expected_memory;
const bool aggressive_mode = total_used_memory >= critical_memory;
const u64 ticks_to_destroy = high_priority_mode ? 60 : 100;
int num_iterations = aggressive_mode ? 256 : (high_priority_mode ? 128 : 64);
for (; num_iterations > 0; --num_iterations) {
if (deletion_iterator == slot_images.end()) {
deletion_iterator = slot_images.begin();
if (deletion_iterator == slot_images.end()) {
break;
}
const u64 ticks_to_destroy = aggressive_mode ? 10ULL : high_priority_mode ? 50ULL : 100ULL;
size_t num_iterations = aggressive_mode ? 10000 : (high_priority_mode ? 50 : 5);
const auto clean_up = [this, &num_iterations, high_priority_mode](ImageId image_id) {
if (num_iterations == 0) {
return true;
}
auto [image_id, image_tmp] = *deletion_iterator;
Image* image = image_tmp; // fix clang error.
const bool is_alias = True(image->flags & ImageFlagBits::Alias);
const bool is_bad_overlap = True(image->flags & ImageFlagBits::BadOverlap);
const bool must_download = image->IsSafeDownload();
bool should_care = is_bad_overlap || is_alias || (high_priority_mode && !must_download);
const u64 ticks_needed =
is_bad_overlap
? ticks_to_destroy >> 4
: ((should_care && aggressive_mode) ? ticks_to_destroy >> 1 : ticks_to_destroy);
should_care |= aggressive_mode;
if (should_care && image->frame_tick + ticks_needed < frame_tick) {
if (is_bad_overlap) {
const bool overlap_check = std::ranges::all_of(
image->overlapping_images, [&, image](const ImageId& overlap_id) {
auto& overlap = slot_images[overlap_id];
return overlap.frame_tick >= image->frame_tick;
});
if (!overlap_check) {
++deletion_iterator;
continue;
}
}
if (!is_bad_overlap && must_download) {
const bool alias_check = std::ranges::none_of(
image->aliased_images, [&, image](const AliasedImage& alias) {
auto& alias_image = slot_images[alias.id];
return (alias_image.frame_tick < image->frame_tick) ||
(alias_image.modification_tick < image->modification_tick);
});
if (alias_check) {
auto map = runtime.DownloadStagingBuffer(image->unswizzled_size_bytes);
const auto copies = FullDownloadCopies(image->info);
image->DownloadMemory(map, copies);
runtime.Finish();
SwizzleImage(gpu_memory, image->gpu_addr, image->info, copies, map.mapped_span);
}
}
if (True(image->flags & ImageFlagBits::Tracked)) {
UntrackImage(*image, image_id);
}
UnregisterImage(image_id);
DeleteImage(image_id);
if (is_bad_overlap) {
++num_iterations;
}
--num_iterations;
auto& image = slot_images[image_id];
const bool must_download = image.IsSafeDownload();
if (!high_priority_mode && must_download) {
return false;
}
++deletion_iterator;
}
if (must_download) {
auto map = runtime.DownloadStagingBuffer(image.unswizzled_size_bytes);
const auto copies = FullDownloadCopies(image.info);
image.DownloadMemory(map, copies);
runtime.Finish();
SwizzleImage(gpu_memory, image.gpu_addr, image.info, copies, map.mapped_span);
}
if (True(image.flags & ImageFlagBits::Tracked)) {
UntrackImage(image, image_id);
}
UnregisterImage(image_id);
DeleteImage(image_id);
return false;
};
lru_cache.ForEachItemBelow(frame_tick - ticks_to_destroy, clean_up);
}
template <class P>
@ -1078,6 +1044,8 @@ void TextureCache<P>::RegisterImage(ImageId image_id) {
tentative_size = EstimatedDecompressedSize(tentative_size, image.info.format);
}
total_used_memory += Common::AlignUp(tentative_size, 1024);
image.lru_index = lru_cache.Insert(image_id, frame_tick);
ForEachGPUPage(image.gpu_addr, image.guest_size_bytes,
[this, image_id](u64 page) { gpu_page_table[page].push_back(image_id); });
if (False(image.flags & ImageFlagBits::Sparse)) {
@ -1115,6 +1083,7 @@ void TextureCache<P>::UnregisterImage(ImageId image_id) {
tentative_size = EstimatedDecompressedSize(tentative_size, image.info.format);
}
total_used_memory -= Common::AlignUp(tentative_size, 1024);
lru_cache.Free(image.lru_index);
const auto& clear_page_table =
[this, image_id](
u64 page,
@ -1384,7 +1353,7 @@ void TextureCache<P>::PrepareImage(ImageId image_id, bool is_modification, bool
if (is_modification) {
MarkModification(image);
}
image.frame_tick = frame_tick;
lru_cache.Touch(image.lru_index, frame_tick);
}
template <class P>

8
src/video_core/texture_cache/texture_cache_base.h
View file

@ -14,6 +14,7 @@
#include "common/common_types.h"
#include "common/literals.h"
#include "common/lru_cache.h"
#include "video_core/compatible_formats.h"
#include "video_core/delayed_destruction_ring.h"
#include "video_core/engines/fermi_2d.h"
@ -370,6 +371,12 @@ private:
std::vector<ImageId> uncommitted_downloads;
std::queue<std::vector<ImageId>> committed_downloads;
struct LRUItemParams {
using ObjectType = ImageId;
using TickType = u64;
};
Common::LeastRecentlyUsedCache<LRUItemParams> lru_cache;
static constexpr size_t TICKS_TO_DESTROY = 6;
DelayedDestructionRing<Image, TICKS_TO_DESTROY> sentenced_images;
DelayedDestructionRing<ImageView, TICKS_TO_DESTROY> sentenced_image_view;
@ -379,7 +386,6 @@ private:
u64 modification_tick = 0;
u64 frame_tick = 0;
typename SlotVector<Image>::Iterator deletion_iterator;
};
} // namespace VideoCommon