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buffer_cache: Use boost::intrusive::set for caching

Instead of using boost::icl::interval_map for caching, use
boost::intrusive::set. interval_map is intended as a container where the
keys can overlap with one another; we don't need this for caching
buffers and a std::set-like data structure that allows us to search with
lower_bound is enough.
This commit is contained in:
ReinUsesLisp 2020-05-17 16:56:08 -03:00
parent 3b0baf746e
commit 891236124c
6 changed files with 48 additions and 30 deletions

View file

@ -14,9 +14,11 @@
#include <boost/icl/interval_map.hpp>
#include <boost/icl/interval_set.hpp>
#include <boost/intrusive/set.hpp>
#include <boost/range/iterator_range.hpp>
#include "common/alignment.h"
#include "common/assert.h"
#include "common/common_types.h"
#include "common/logging/log.h"
#include "core/core.h"
@ -73,7 +75,7 @@ public:
}
}
auto block = GetBlock(cpu_addr, size);
OwnerBuffer block = GetBlock(cpu_addr, size);
MapInterval* const map = MapAddress(block, gpu_addr, cpu_addr, size);
if (!map) {
return {GetEmptyBuffer(size), 0};
@ -272,16 +274,16 @@ protected:
}
const std::size_t size = new_map.end - new_map.start;
new_map.is_registered = true;
const IntervalType interval{new_map.start, new_map.end};
rasterizer.UpdatePagesCachedCount(cpu_addr, size, 1);
new_map.is_memory_marked = true;
if (inherit_written) {
MarkRegionAsWritten(new_map.start, new_map.end - 1);
new_map.is_written = true;
}
mapped_addresses.insert({interval, new_map});
// Temporary hack until this is replaced with boost::intrusive::rbtree
return const_cast<MapInterval*>(&mapped_addresses.find(interval)->second);
// Temporary hack, leaks memory and it's not cache local
MapInterval* const storage = &mapped_addresses_storage.emplace_back(new_map);
mapped_addresses.insert(*storage);
return storage;
}
void UnmarkMemory(MapInterval* map) {
@ -304,8 +306,9 @@ protected:
if (map->is_written) {
UnmarkRegionAsWritten(map->start, map->end - 1);
}
const IntervalType delete_interval{map->start, map->end};
mapped_addresses.erase(delete_interval);
const auto it = mapped_addresses.find(*map);
ASSERT(it != mapped_addresses.end());
mapped_addresses.erase(it);
}
private:
@ -389,13 +392,20 @@ private:
return {};
}
std::vector<MapInterval*> objects;
const IntervalType interval{addr, addr + size};
for (auto& pair : boost::make_iterator_range(mapped_addresses.equal_range(interval))) {
objects.push_back(&pair.second);
}
std::vector<MapInterval*> result;
const VAddr addr_end = addr + size;
return objects;
auto it = mapped_addresses.lower_bound(addr);
if (it != mapped_addresses.begin()) {
--it;
}
while (it != mapped_addresses.end() && it->start < addr_end) {
if (it->Overlaps(addr, addr_end)) {
result.push_back(&*it);
}
++it;
}
return result;
}
/// Returns a ticks counter used for tracking when cached objects were last modified
@ -565,9 +575,9 @@ private:
u64 buffer_offset_base = 0;
using IntervalSet = boost::icl::interval_set<VAddr>;
using IntervalCache = boost::icl::interval_map<VAddr, MapInterval>;
using IntervalType = typename IntervalCache::interval_type;
IntervalCache mapped_addresses;
using IntervalType = typename IntervalSet::interval_type;
std::list<MapInterval> mapped_addresses_storage; // Temporary hack
boost::intrusive::set<MapInterval, boost::intrusive::compare<MapIntervalCompare>> mapped_addresses;
static constexpr u64 write_page_bit = 11;
std::unordered_map<u64, u32> written_pages;

View file

@ -4,38 +4,36 @@
#pragma once
#include <boost/intrusive/set_hook.hpp>
#include "common/common_types.h"
#include "video_core/gpu.h"
namespace VideoCommon {
struct MapInterval {
constexpr explicit MapInterval() noexcept = default;
struct MapInterval : public boost::intrusive::set_base_hook<boost::intrusive::optimize_size<true>> {
/*implicit*/ MapInterval(VAddr start_) noexcept : start{start_} {}
constexpr explicit MapInterval(VAddr start, VAddr end, GPUVAddr gpu_addr) noexcept
: start{start}, end{end}, gpu_addr{gpu_addr} {}
explicit MapInterval(VAddr start_, VAddr end_, GPUVAddr gpu_addr_) noexcept
: start{start_}, end{end_}, gpu_addr{gpu_addr_} {}
constexpr bool IsInside(VAddr other_start, VAddr other_end) const noexcept {
return (start <= other_start && other_end <= end);
bool IsInside(VAddr other_start, VAddr other_end) const noexcept {
return start <= other_start && other_end <= end;
}
constexpr bool operator==(const MapInterval& rhs) const noexcept {
return start == rhs.start && end == rhs.end;
bool Overlaps(VAddr other_start, VAddr other_end) const noexcept {
return start < other_end && other_start < end;
}
constexpr bool operator!=(const MapInterval& rhs) const noexcept {
return !operator==(rhs);
}
constexpr void MarkAsModified(bool is_modified_, u64 ticks_) noexcept {
void MarkAsModified(bool is_modified_, u64 ticks_) noexcept {
is_modified = is_modified_;
ticks = ticks_;
}
boost::intrusive::set_member_hook<> member_hook_;
VAddr start = 0;
VAddr end = 0;
GPUVAddr gpu_addr = 0;
VAddr cpu_addr = 0;
u64 ticks = 0;
bool is_written = false;
bool is_modified = false;
@ -44,4 +42,10 @@ struct MapInterval {
bool is_sync_pending = false;
};
struct MapIntervalCompare {
constexpr bool operator()(const MapInterval& lhs, const MapInterval& rhs) const noexcept {
return lhs.start < rhs.start;
}
};
} // namespace VideoCommon

View file

@ -8,6 +8,7 @@
#include "common/assert.h"
#include "common/microprofile.h"
#include "video_core/buffer_cache/buffer_cache.h"
#include "video_core/engines/maxwell_3d.h"
#include "video_core/rasterizer_interface.h"
#include "video_core/renderer_opengl/gl_buffer_cache.h"

View file

@ -4,6 +4,7 @@
#include "common/assert.h"
#include "video_core/renderer_opengl/gl_buffer_cache.h"
#include "video_core/renderer_opengl/gl_fence_manager.h"
namespace OpenGL {

View file

@ -7,6 +7,7 @@
#include <memory>
#include "core/core.h"
#include "video_core/buffer_cache/buffer_cache.h"
#include "video_core/renderer_vulkan/vk_buffer_cache.h"
#include "video_core/renderer_vulkan/vk_device.h"
#include "video_core/renderer_vulkan/vk_scheduler.h"

View file

@ -7,6 +7,7 @@
#include <memory>
#include "video_core/fence_manager.h"
#include "video_core/renderer_vulkan/vk_buffer_cache.h"
#include "video_core/renderer_vulkan/wrapper.h"
namespace Core {