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-rw-r--r--src/video_core/rasterizer_accelerated.cpp62
-rw-r--r--src/video_core/rasterizer_accelerated.h25
2 files changed, 40 insertions, 47 deletions
diff --git a/src/video_core/rasterizer_accelerated.cpp b/src/video_core/rasterizer_accelerated.cpp
index 53622ca05..62d84c0f8 100644
--- a/src/video_core/rasterizer_accelerated.cpp
+++ b/src/video_core/rasterizer_accelerated.cpp
@@ -2,63 +2,43 @@
// 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};
-
- // 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);
+ 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);
+
+ if (delta > 0) {
+ 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});
+ // Adds or subtracts 1, as count is a unsigned 8-bit value
+ count += static_cast<u8>(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);
+ }
}
}
diff --git a/src/video_core/rasterizer_accelerated.h b/src/video_core/rasterizer_accelerated.h
index 91866d7dd..9227a4adc 100644
--- a/src/video_core/rasterizer_accelerated.h
+++ b/src/video_core/rasterizer_accelerated.h
@@ -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;
};