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early-access version 1498

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pineappleEA 2021-03-03 03:38:05 +01:00
parent 1b9c49e3b5
commit a203e0a617
3 changed files with 39 additions and 47 deletions
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2
README.md
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@ -1,7 +1,7 @@
yuzu emulator early access
=============
This is the source code for early-access 1496.
This is the source code for early-access 1498.
## Legal Notice

57
src/video_core/rasterizer_accelerated.cpp
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// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <mutex>
#include <boost/icl/interval_map.hpp>
#include <boost/range/iterator_range.hpp>
#include "common/assert.h"
#include "common/common_types.h"
#include "common/div_ceil.h"
#include "core/memory.h"
#include "video_core/rasterizer_accelerated.h"
namespace VideoCore {
namespace {
template <typename Map, typename Interval>
constexpr auto RangeFromInterval(Map& map, const Interval& interval) {
return boost::make_iterator_range(map.equal_range(interval));
}
} // Anonymous namespace
RasterizerAccelerated::RasterizerAccelerated(Core::Memory::Memory& cpu_memory_)
: cpu_memory{cpu_memory_} {}
RasterizerAccelerated::~RasterizerAccelerated() = default;
void RasterizerAccelerated::UpdatePagesCachedCount(VAddr addr, u64 size, int delta) {
std::lock_guard lock{pages_mutex};
const u64 page_start{addr >> Core::Memory::PAGE_BITS};
const u64 page_end{(addr + size + Core::Memory::PAGE_SIZE - 1) >> Core::Memory::PAGE_BITS};
const auto page_end = Common::DivCeil(addr + size, Core::Memory::PAGE_SIZE);
for (auto page = addr >> Core::Memory::PAGE_BITS; page != page_end; ++page) {
auto& count = cached_pages.at(page >> 3).Count(page);
// Interval maps will erase segments if count reaches 0, so if delta is negative we have to
// subtract after iterating
const auto pages_interval = CachedPageMap::interval_type::right_open(page_start, page_end);
if (delta > 0) {
cached_pages.add({pages_interval, delta});
}
for (const auto& pair : RangeFromInterval(cached_pages, pages_interval)) {
const auto interval = pair.first & pages_interval;
const int count = pair.second;
const VAddr interval_start_addr = boost::icl::first(interval) << Core::Memory::PAGE_BITS;
const VAddr interval_end_addr = boost::icl::last_next(interval) << Core::Memory::PAGE_BITS;
const u64 interval_size = interval_end_addr - interval_start_addr;
if (delta > 0 && count == delta) {
cpu_memory.RasterizerMarkRegionCached(interval_start_addr, interval_size, true);
} else if (delta < 0 && count == -delta) {
cpu_memory.RasterizerMarkRegionCached(interval_start_addr, interval_size, false);
ASSERT_MSG(count < UINT8_MAX, "Count may overflow!");
} else if (delta < 0) {
ASSERT_MSG(count > 0, "Count may underflow!");
} else {
ASSERT(count >= 0);
}
ASSERT_MSG(true, "Delta must be non-zero!");
}
if (delta < 0) {
cached_pages.add({pages_interval, delta});
count += static_cast<s8>(delta);
// Assume delta is either -1 or 1
if (count == 0) {
cpu_memory.RasterizerMarkRegionCached(page << Core::Memory::PAGE_BITS,
Core::Memory::PAGE_SIZE, false);
} else if (count == 1 && delta > 0) {
cpu_memory.RasterizerMarkRegionCached(page << Core::Memory::PAGE_BITS,
Core::Memory::PAGE_SIZE, true);
}
}
}

25
src/video_core/rasterizer_accelerated.h
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@ -4,9 +4,8 @@
#pragma once
#include <mutex>
#include <boost/icl/interval_map.hpp>
#include <array>
#include <atomic>
#include "common/common_types.h"
#include "video_core/rasterizer_interface.h"
@ -26,10 +25,24 @@ public:
void UpdatePagesCachedCount(VAddr addr, u64 size, int delta) override;
private:
using CachedPageMap = boost::icl::interval_map<u64, int>;
CachedPageMap cached_pages;
std::mutex pages_mutex;
class CacheEntry final {
public:
CacheEntry() = default;
std::atomic_uint8_t& Count(std::size_t page) {
return values[page & 7];
}
const std::atomic_uint8_t& Count(std::size_t page) const {
return values[page & 7];
}
private:
std::array<std::atomic_uint8_t, 8> values{};
};
static_assert(sizeof(CacheEntry) == 8, "CacheEntry should be 8 bytes!");
std::array<CacheEntry, 0x800000> cached_pages;
Core::Memory::Memory& cpu_memory;
};