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BufferCache: Additional download fixes.

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This commit is contained in:
Fernando Sahmkow 2021-07-08 02:52:07 +02:00
parent f75544a943
commit 2c8f4ed27f
2 changed files with 107 additions and 23 deletions
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120
src/video_core/buffer_cache/buffer_cache.h
View file

@ -336,6 +336,7 @@ private:
std::vector<BufferId> cached_write_buffer_ids;
IntervalSet uncommitted_ranges;
IntervalSet common_ranges;
std::deque<IntervalSet> committed_ranges;
size_t immediate_buffer_capacity = 0;
@ -359,6 +360,7 @@ BufferCache<P>::BufferCache(VideoCore::RasterizerInterface& rasterizer_,
// Ensure the first slot is used for the null buffer
void(slot_buffers.insert(runtime, NullBufferParams{}));
deletion_iterator = slot_buffers.end();
common_ranges.clear();
}
template <class P>
@ -592,19 +594,56 @@ void BufferCache<P>::CommitAsyncFlushesHigh() {
const VAddr cpu_addr_end = interval.upper();
ForEachBufferInRange(cpu_addr, size, [&](BufferId buffer_id, Buffer& buffer) {
boost::container::small_vector<BufferCopy, 1> copies;
buffer.ForEachDownloadRange(cpu_addr, size, true,
[&](u64 range_offset, u64 range_size) {
downloads.push_back({
BufferCopy{
.src_offset = range_offset,
.dst_offset = total_size_bytes,
.size = range_size,
},
buffer_id,
});
total_size_bytes += range_size;
largest_copy = std::max(largest_copy, range_size);
});
buffer.ForEachDownloadRange(
cpu_addr, size, true, [&](u64 range_offset, u64 range_size) {
const VAddr buffer_addr = buffer.CpuAddr();
const auto add_download = [&](VAddr start, VAddr end) {
const u64 new_offset = start - buffer_addr;
const u64 new_size = end - start;
downloads.push_back({
BufferCopy{
.src_offset = new_offset,
.dst_offset = total_size_bytes,
.size = new_size,
},
buffer_id,
});
// Align up to avoid cache conflicts
constexpr u64 align = 256ULL;
constexpr u64 mask = ~(align - 1ULL);
total_size_bytes += (new_size + align - 1) & mask;
largest_copy = std::max(largest_copy, new_size);
};
const VAddr start_address = buffer_addr + range_offset;
const VAddr end_address = start_address + range_size;
const IntervalType search_interval{cpu_addr, 1};
auto it = common_ranges.lower_bound(search_interval);
if (it == common_ranges.end()) {
it = common_ranges.begin();
}
while (it != common_ranges.end()) {
VAddr inter_addr_end = it->upper();
VAddr inter_addr = it->lower();
if (inter_addr >= end_address) {
break;
}
if (inter_addr_end <= start_address) {
it++;
continue;
}
if (inter_addr_end > end_address) {
inter_addr_end = end_address;
}
if (inter_addr < start_address) {
inter_addr = start_address;
}
add_download(inter_addr, inter_addr_end);
it++;
}
const IntervalType subtract_interval{start_address, end_address};
common_ranges.subtract(subtract_interval);
});
});
}
}
@ -1060,13 +1099,15 @@ void BufferCache<P>::MarkWrittenBuffer(BufferId buffer_id, VAddr cpu_addr, u32 s
Buffer& buffer = slot_buffers[buffer_id];
buffer.MarkRegionAsGpuModified(cpu_addr, size);
const IntervalType base_interval{cpu_addr, cpu_addr + size};
common_ranges.add(base_interval);
const bool is_accuracy_high =
Settings::values.gpu_accuracy.GetValue() == Settings::GPUAccuracy::High;
const bool is_async = Settings::values.use_asynchronous_gpu_emulation.GetValue();
if (!is_async && !is_accuracy_high) {
return;
}
const IntervalType base_interval{cpu_addr, cpu_addr + size};
uncommitted_ranges.add(base_interval);
}
@ -1292,13 +1333,50 @@ void BufferCache<P>::DownloadBufferMemory(Buffer& buffer, VAddr cpu_addr, u64 si
u64 total_size_bytes = 0;
u64 largest_copy = 0;
buffer.ForEachDownloadRange(cpu_addr, size, true, [&](u64 range_offset, u64 range_size) {
copies.push_back(BufferCopy{
.src_offset = range_offset,
.dst_offset = total_size_bytes,
.size = range_size,
});
total_size_bytes += range_size;
largest_copy = std::max(largest_copy, range_size);
const VAddr buffer_addr = buffer.CpuAddr();
const auto add_download = [&](VAddr start, VAddr end) {
const u64 new_offset = start - buffer_addr;
const u64 new_size = end - start;
copies.push_back(BufferCopy{
.src_offset = new_offset,
.dst_offset = total_size_bytes,
.size = new_size,
});
// Align up to avoid cache conflicts
constexpr u64 align = 256ULL;
constexpr u64 mask = ~(align - 1ULL);
total_size_bytes += (new_size + align - 1) & mask;
largest_copy = std::max(largest_copy, new_size);
};
const VAddr start_address = buffer_addr + range_offset;
const VAddr end_address = start_address + range_size;
const IntervalType search_interval{start_address - range_size, 1};
auto it = common_ranges.lower_bound(search_interval);
if (it == common_ranges.end()) {
it = common_ranges.begin();
}
while (it != common_ranges.end()) {
VAddr inter_addr_end = it->upper();
VAddr inter_addr = it->lower();
if (inter_addr >= end_address) {
break;
}
if (inter_addr_end <= start_address) {
it++;
continue;
}
if (inter_addr_end > end_address) {
inter_addr_end = end_address;
}
if (inter_addr < start_address) {
inter_addr = start_address;
}
add_download(inter_addr, inter_addr_end);
it++;
}
const IntervalType subtract_interval{start_address, end_address};
common_ranges.subtract(subtract_interval);
});
if (total_size_bytes == 0) {
return;

10
src/video_core/dma_pusher.cpp
View file

@ -4,6 +4,7 @@
#include "common/cityhash.h"
#include "common/microprofile.h"
#include "common/settings.h"
#include "core/core.h"
#include "core/memory.h"
#include "video_core/dma_pusher.h"
@ -76,8 +77,13 @@ bool DmaPusher::Step() {
// Push buffer non-empty, read a word
command_headers.resize(command_list_header.size);
gpu.MemoryManager().ReadBlockUnsafe(dma_get, command_headers.data(),
command_list_header.size * sizeof(u32));
if (Settings::IsGPULevelHigh()) {
gpu.MemoryManager().ReadBlock(dma_get, command_headers.data(),
command_list_header.size * sizeof(u32));
} else {
gpu.MemoryManager().ReadBlockUnsafe(dma_get, command_headers.data(),
command_list_header.size * sizeof(u32));
}
}
for (std::size_t index = 0; index < command_headers.size();) {
const CommandHeader& command_header = command_headers[index];