octo/yuzu
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Buffer Cache: Fully rework the buffer cache.

Browse Source
This commit is contained in:
Fernando Sahmkow
2022-11-20 00:09:56 +01:00
parent 9bf19b04f6
commit a16c261131
12 changed files with 1644 additions and 1091 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
src/video_core/CMakeLists.txt
View File

@@ -11,8 +11,11 @@ endif()
add_library(video_core STATIC add_library(video_core STATIC
buffer_cache/buffer_base.h buffer_cache/buffer_base.h
buffer_cache/buffer_cache_base.h
buffer_cache/buffer_cache.cpp buffer_cache/buffer_cache.cpp
buffer_cache/buffer_cache.h buffer_cache/buffer_cache.h
buffer_cache/memory_tracker_base.h
buffer_cache/word_manager.h
cache_types.h cache_types.h
cdma_pusher.cpp cdma_pusher.cpp
cdma_pusher.h cdma_pusher.h
@@ -104,6 +107,7 @@ add_library(video_core STATIC
renderer_null/renderer_null.h renderer_null/renderer_null.h
renderer_opengl/blit_image.cpp renderer_opengl/blit_image.cpp
renderer_opengl/blit_image.h renderer_opengl/blit_image.h
renderer_opengl/gl_buffer_cache_base.cpp
renderer_opengl/gl_buffer_cache.cpp renderer_opengl/gl_buffer_cache.cpp
renderer_opengl/gl_buffer_cache.h renderer_opengl/gl_buffer_cache.h
renderer_opengl/gl_compute_pipeline.cpp renderer_opengl/gl_compute_pipeline.cpp
@@ -154,6 +158,7 @@ add_library(video_core STATIC
renderer_vulkan/renderer_vulkan.cpp renderer_vulkan/renderer_vulkan.cpp
renderer_vulkan/vk_blit_screen.cpp renderer_vulkan/vk_blit_screen.cpp
renderer_vulkan/vk_blit_screen.h renderer_vulkan/vk_blit_screen.h
renderer_vulkan/vk_buffer_cache_base.cpp
renderer_vulkan/vk_buffer_cache.cpp renderer_vulkan/vk_buffer_cache.cpp
renderer_vulkan/vk_buffer_cache.h renderer_vulkan/vk_buffer_cache.h
renderer_vulkan/vk_command_pool.cpp renderer_vulkan/vk_command_pool.cpp

459
src/video_core/buffer_cache/buffer_base.h
View File

@@ -1,5 +1,5 @@
// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project // SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later // SPDX-License-Identifier: GPL-3.0-or-later
#pragma once #pragma once
@@ -11,9 +11,7 @@
#include "common/alignment.h" #include "common/alignment.h"
#include "common/common_funcs.h" #include "common/common_funcs.h"
#include "common/common_types.h" #include "common/common_types.h"
#include "common/div_ceil.h" #include "video_core/buffer_cache/word_manager.h"
#include "common/settings.h"
#include "core/memory.h"
namespace VideoCommon { namespace VideoCommon {
@@ -36,116 +34,14 @@ struct NullBufferParams {};
*/ */
template <class RasterizerInterface> template <class RasterizerInterface>
class BufferBase { class BufferBase {
static constexpr u64 PAGES_PER_WORD = 64;
static constexpr u64 BYTES_PER_PAGE = Core::Memory::YUZU_PAGESIZE;
static constexpr u64 BYTES_PER_WORD = PAGES_PER_WORD * BYTES_PER_PAGE;
/// Vector tracking modified pages tightly packed with small vector optimization
union WordsArray {
/// Returns the pointer to the words state
[[nodiscard]] const u64* Pointer(bool is_short) const noexcept {
return is_short ? &stack : heap;
}
/// Returns the pointer to the words state
[[nodiscard]] u64* Pointer(bool is_short) noexcept {
return is_short ? &stack : heap;
}
u64 stack = 0; ///< Small buffers storage
u64* heap; ///< Not-small buffers pointer to the storage
};
struct Words {
explicit Words() = default;
explicit Words(u64 size_bytes_) : size_bytes{size_bytes_} {
if (IsShort()) {
cpu.stack = ~u64{0};
gpu.stack = 0;
cached_cpu.stack = 0;
untracked.stack = ~u64{0};
} else {
// Share allocation between CPU and GPU pages and set their default values
const size_t num_words = NumWords();
u64* const alloc = new u64[num_words * 4];
cpu.heap = alloc;
gpu.heap = alloc + num_words;
cached_cpu.heap = alloc + num_words * 2;
untracked.heap = alloc + num_words * 3;
std::fill_n(cpu.heap, num_words, ~u64{0});
std::fill_n(gpu.heap, num_words, 0);
std::fill_n(cached_cpu.heap, num_words, 0);
std::fill_n(untracked.heap, num_words, ~u64{0});
}
// Clean up tailing bits
const u64 last_word_size = size_bytes % BYTES_PER_WORD;
const u64 last_local_page = Common::DivCeil(last_word_size, BYTES_PER_PAGE);
const u64 shift = (PAGES_PER_WORD - last_local_page) % PAGES_PER_WORD;
const u64 last_word = (~u64{0} << shift) >> shift;
cpu.Pointer(IsShort())[NumWords() - 1] = last_word;
untracked.Pointer(IsShort())[NumWords() - 1] = last_word;
}
~Words() {
Release();
}
Words& operator=(Words&& rhs) noexcept {
Release();
size_bytes = rhs.size_bytes;
cpu = rhs.cpu;
gpu = rhs.gpu;
cached_cpu = rhs.cached_cpu;
untracked = rhs.untracked;
rhs.cpu.heap = nullptr;
return *this;
}
Words(Words&& rhs) noexcept
: size_bytes{rhs.size_bytes}, cpu{rhs.cpu}, gpu{rhs.gpu},
cached_cpu{rhs.cached_cpu}, untracked{rhs.untracked} {
rhs.cpu.heap = nullptr;
}
Words& operator=(const Words&) = delete;
Words(const Words&) = delete;
/// Returns true when the buffer fits in the small vector optimization
[[nodiscard]] bool IsShort() const noexcept {
return size_bytes <= BYTES_PER_WORD;
}
/// Returns the number of words of the buffer
[[nodiscard]] size_t NumWords() const noexcept {
return Common::DivCeil(size_bytes, BYTES_PER_WORD);
}
/// Release buffer resources
void Release() {
if (!IsShort()) {
// CPU written words is the base for the heap allocation
delete[] cpu.heap;
}
}
u64 size_bytes = 0;
WordsArray cpu;
WordsArray gpu;
WordsArray cached_cpu;
WordsArray untracked;
};
enum class Type {
CPU,
GPU,
CachedCPU,
Untracked,
};
public: public:
static constexpr u64 BASE_PAGE_BITS = 16;
static constexpr u64 BASE_PAGE_SIZE = 1ULL << BASE_PAGE_BITS;
explicit BufferBase(RasterizerInterface& rasterizer_, VAddr cpu_addr_, u64 size_bytes) explicit BufferBase(RasterizerInterface& rasterizer_, VAddr cpu_addr_, u64 size_bytes)
: rasterizer{&rasterizer_}, cpu_addr{Common::AlignDown(cpu_addr_, BYTES_PER_PAGE)}, : cpu_addr{Common::AlignDown(cpu_addr_, BASE_PAGE_SIZE)},
words(Common::AlignUp(size_bytes + (cpu_addr_ - cpu_addr), BYTES_PER_PAGE)) {} word_manager(cpu_addr, rasterizer_,
Common::AlignUp(size_bytes + (cpu_addr_ - cpu_addr), BASE_PAGE_SIZE)) {}
explicit BufferBase(NullBufferParams) {} explicit BufferBase(NullBufferParams) {}
@@ -159,94 +55,82 @@ public:
[[nodiscard]] std::pair<u64, u64> ModifiedCpuRegion(VAddr query_cpu_addr, [[nodiscard]] std::pair<u64, u64> ModifiedCpuRegion(VAddr query_cpu_addr,
u64 query_size) const noexcept { u64 query_size) const noexcept {
const u64 offset = query_cpu_addr - cpu_addr; const u64 offset = query_cpu_addr - cpu_addr;
return ModifiedRegion<Type::CPU>(offset, query_size); return word_manager.ModifiedRegion<Type::CPU>(offset, query_size);
} }
/// Returns the inclusive GPU modified range in a begin end pair /// Returns the inclusive GPU modified range in a begin end pair
[[nodiscard]] std::pair<u64, u64> ModifiedGpuRegion(VAddr query_cpu_addr, [[nodiscard]] std::pair<u64, u64> ModifiedGpuRegion(VAddr query_cpu_addr,
u64 query_size) const noexcept { u64 query_size) const noexcept {
const u64 offset = query_cpu_addr - cpu_addr; const u64 offset = query_cpu_addr - cpu_addr;
return ModifiedRegion<Type::GPU>(offset, query_size); return word_manager.ModifiedRegion<Type::GPU>(offset, query_size);
} }
/// Returns true if a region has been modified from the CPU /// Returns true if a region has been modified from the CPU
[[nodiscard]] bool IsRegionCpuModified(VAddr query_cpu_addr, u64 query_size) const noexcept { [[nodiscard]] bool IsRegionCpuModified(VAddr query_cpu_addr, u64 query_size) const noexcept {
const u64 offset = query_cpu_addr - cpu_addr; const u64 offset = query_cpu_addr - cpu_addr;
return IsRegionModified<Type::CPU>(offset, query_size); return word_manager.IsRegionModified<Type::CPU>(offset, query_size);
} }
/// Returns true if a region has been modified from the GPU /// Returns true if a region has been modified from the GPU
[[nodiscard]] bool IsRegionGpuModified(VAddr query_cpu_addr, u64 query_size) const noexcept { [[nodiscard]] bool IsRegionGpuModified(VAddr query_cpu_addr, u64 query_size) const noexcept {
const u64 offset = query_cpu_addr - cpu_addr; const u64 offset = query_cpu_addr - cpu_addr;
return IsRegionModified<Type::GPU>(offset, query_size); return word_manager.IsRegionModified<Type::GPU>(offset, query_size);
} }
/// Mark region as CPU modified, notifying the rasterizer about this change /// Mark region as CPU modified, notifying the rasterizer about this change
void MarkRegionAsCpuModified(VAddr dirty_cpu_addr, u64 size) { void MarkRegionAsCpuModified(VAddr dirty_cpu_addr, u64 size) {
ChangeRegionState<Type::CPU, true>(dirty_cpu_addr, size); word_manager.ChangeRegionState<Type::CPU, true>(dirty_cpu_addr, size);
} }
/// Unmark region as CPU modified, notifying the rasterizer about this change /// Unmark region as CPU modified, notifying the rasterizer about this change
void UnmarkRegionAsCpuModified(VAddr dirty_cpu_addr, u64 size) { void UnmarkRegionAsCpuModified(VAddr dirty_cpu_addr, u64 size) {
ChangeRegionState<Type::CPU, false>(dirty_cpu_addr, size); word_manager.ChangeRegionState<Type::CPU, false>(dirty_cpu_addr, size);
} }
/// Mark region as modified from the host GPU /// Mark region as modified from the host GPU
void MarkRegionAsGpuModified(VAddr dirty_cpu_addr, u64 size) noexcept { void MarkRegionAsGpuModified(VAddr dirty_cpu_addr, u64 size) noexcept {
ChangeRegionState<Type::GPU, true>(dirty_cpu_addr, size); word_manager.ChangeRegionState<Type::GPU, true>(dirty_cpu_addr, size);
} }
/// Unmark region as modified from the host GPU /// Unmark region as modified from the host GPU
void UnmarkRegionAsGpuModified(VAddr dirty_cpu_addr, u64 size) noexcept { void UnmarkRegionAsGpuModified(VAddr dirty_cpu_addr, u64 size) noexcept {
ChangeRegionState<Type::GPU, false>(dirty_cpu_addr, size); word_manager.ChangeRegionState<Type::GPU, false>(dirty_cpu_addr, size);
} }
/// Mark region as modified from the CPU /// Mark region as modified from the CPU
/// but don't mark it as modified until FlusHCachedWrites is called. /// but don't mark it as modified until FlusHCachedWrites is called.
void CachedCpuWrite(VAddr dirty_cpu_addr, u64 size) { void CachedCpuWrite(VAddr dirty_cpu_addr, u64 size) {
flags |= BufferFlagBits::CachedWrites; flags |= BufferFlagBits::CachedWrites;
ChangeRegionState<Type::CachedCPU, true>(dirty_cpu_addr, size); word_manager.ChangeRegionState<Type::CachedCPU, true>(dirty_cpu_addr, size);
} }
/// Flushes cached CPU writes, and notify the rasterizer about the deltas /// Flushes cached CPU writes, and notify the rasterizer about the deltas
void FlushCachedWrites() noexcept { void FlushCachedWrites() noexcept {
flags &= ~BufferFlagBits::CachedWrites; flags &= ~BufferFlagBits::CachedWrites;
const u64 num_words = NumWords(); word_manager.FlushCachedWrites();
u64* const cached_words = Array<Type::CachedCPU>();
u64* const untracked_words = Array<Type::Untracked>();
u64* const cpu_words = Array<Type::CPU>();
for (u64 word_index = 0; word_index < num_words; ++word_index) {
const u64 cached_bits = cached_words[word_index];
NotifyRasterizer<false>(word_index, untracked_words[word_index], cached_bits);
untracked_words[word_index] |= cached_bits;
cpu_words[word_index] |= cached_bits;
if (!Settings::values.use_pessimistic_flushes) {
cached_words[word_index] = 0;
}
}
} }
/// Call 'func' for each CPU modified range and unmark those pages as CPU modified /// Call 'func' for each CPU modified range and unmark those pages as CPU modified
template <typename Func> template <typename Func>
void ForEachUploadRange(VAddr query_cpu_range, u64 size, Func&& func) { void ForEachUploadRange(VAddr query_cpu_range, u64 size, Func&& func) {
ForEachModifiedRange<Type::CPU>(query_cpu_range, size, true, func); word_manager.ForEachModifiedRange<Type::CPU>(query_cpu_range, size, true, func);
} }
/// Call 'func' for each GPU modified range and unmark those pages as GPU modified /// Call 'func' for each GPU modified range and unmark those pages as GPU modified
template <typename Func> template <typename Func>
void ForEachDownloadRange(VAddr query_cpu_range, u64 size, bool clear, Func&& func) { void ForEachDownloadRange(VAddr query_cpu_range, u64 size, bool clear, Func&& func) {
ForEachModifiedRange<Type::GPU>(query_cpu_range, size, clear, func); word_manager.ForEachModifiedRange<Type::GPU>(query_cpu_range, size, clear, func);
} }
template <typename Func> template <typename Func>
void ForEachDownloadRangeAndClear(VAddr query_cpu_range, u64 size, Func&& func) { void ForEachDownloadRangeAndClear(VAddr query_cpu_range, u64 size, Func&& func) {
ForEachModifiedRange<Type::GPU>(query_cpu_range, size, true, func); word_manager.ForEachModifiedRange<Type::GPU>(query_cpu_range, size, true, func);
} }
/// Call 'func' for each GPU modified range and unmark those pages as GPU modified /// Call 'func' for each GPU modified range and unmark those pages as GPU modified
template <typename Func> template <typename Func>
void ForEachDownloadRange(Func&& func) { void ForEachDownloadRange(Func&& func) {
ForEachModifiedRange<Type::GPU>(cpu_addr, SizeBytes(), true, func); word_manager.ForEachModifiedRange<Type::GPU>(cpu_addr, SizeBytes(), true, func);
} }
/// Mark buffer as picked /// Mark buffer as picked
@@ -297,7 +181,7 @@ public:
/// Returns the size in bytes of the buffer /// Returns the size in bytes of the buffer
[[nodiscard]] u64 SizeBytes() const noexcept { [[nodiscard]] u64 SizeBytes() const noexcept {
return words.size_bytes; return word_manager.SizeBytes();
} }
size_t getLRUID() const noexcept { size_t getLRUID() const noexcept {
@@ -309,301 +193,8 @@ public:
} }
private: private:
template <Type type>
u64* Array() noexcept {
if constexpr (type == Type::CPU) {
return words.cpu.Pointer(IsShort());
} else if constexpr (type == Type::GPU) {
return words.gpu.Pointer(IsShort());
} else if constexpr (type == Type::CachedCPU) {
return words.cached_cpu.Pointer(IsShort());
} else if constexpr (type == Type::Untracked) {
return words.untracked.Pointer(IsShort());
}
}
template <Type type>
const u64* Array() const noexcept {
if constexpr (type == Type::CPU) {
return words.cpu.Pointer(IsShort());
} else if constexpr (type == Type::GPU) {
return words.gpu.Pointer(IsShort());
} else if constexpr (type == Type::CachedCPU) {
return words.cached_cpu.Pointer(IsShort());
} else if constexpr (type == Type::Untracked) {
return words.untracked.Pointer(IsShort());
}
}
/**
* Change the state of a range of pages
*
* @param dirty_addr Base address to mark or unmark as modified
* @param size Size in bytes to mark or unmark as modified
*/
template <Type type, bool enable>
void ChangeRegionState(u64 dirty_addr, s64 size) noexcept(type == Type::GPU) {
const s64 difference = dirty_addr - cpu_addr;
const u64 offset = std::max<s64>(difference, 0);
size += std::min<s64>(difference, 0);
if (offset >= SizeBytes() || size < 0) {
return;
}
u64* const untracked_words = Array<Type::Untracked>();
u64* const state_words = Array<type>();
const u64 offset_end = std::min(offset + size, SizeBytes());
const u64 begin_page_index = offset / BYTES_PER_PAGE;
const u64 begin_word_index = begin_page_index / PAGES_PER_WORD;
const u64 end_page_index = Common::DivCeil(offset_end, BYTES_PER_PAGE);
const u64 end_word_index = Common::DivCeil(end_page_index, PAGES_PER_WORD);
u64 page_index = begin_page_index % PAGES_PER_WORD;
u64 word_index = begin_word_index;
while (word_index < end_word_index) {
const u64 next_word_first_page = (word_index + 1) * PAGES_PER_WORD;
const u64 left_offset =
std::min(next_word_first_page - end_page_index, PAGES_PER_WORD) % PAGES_PER_WORD;
const u64 right_offset = page_index;
u64 bits = ~u64{0};
bits = (bits >> right_offset) << right_offset;
bits = (bits << left_offset) >> left_offset;
if constexpr (type == Type::CPU || type == Type::CachedCPU) {
NotifyRasterizer<!enable>(word_index, untracked_words[word_index], bits);
}
if constexpr (enable) {
state_words[word_index] |= bits;
if constexpr (type == Type::CPU || type == Type::CachedCPU) {
untracked_words[word_index] |= bits;
}
} else {
state_words[word_index] &= ~bits;
if constexpr (type == Type::CPU || type == Type::CachedCPU) {
untracked_words[word_index] &= ~bits;
}
}
page_index = 0;
++word_index;
}
}
/**
* Notify rasterizer about changes in the CPU tracking state of a word in the buffer
*
* @param word_index Index to the word to notify to the rasterizer
* @param current_bits Current state of the word
* @param new_bits New state of the word
*
* @tparam add_to_rasterizer True when the rasterizer should start tracking the new pages
*/
template <bool add_to_rasterizer>
void NotifyRasterizer(u64 word_index, u64 current_bits, u64 new_bits) const {
u64 changed_bits = (add_to_rasterizer ? current_bits : ~current_bits) & new_bits;
VAddr addr = cpu_addr + word_index * BYTES_PER_WORD;
while (changed_bits != 0) {
const int empty_bits = std::countr_zero(changed_bits);
addr += empty_bits * BYTES_PER_PAGE;
changed_bits >>= empty_bits;
const u32 continuous_bits = std::countr_one(changed_bits);
const u64 size = continuous_bits * BYTES_PER_PAGE;
const VAddr begin_addr = addr;
addr += size;
changed_bits = continuous_bits < PAGES_PER_WORD ? (changed_bits >> continuous_bits) : 0;
rasterizer->UpdatePagesCachedCount(begin_addr, size, add_to_rasterizer ? 1 : -1);
}
}
/**
* Loop over each page in the given range, turn off those bits and notify the rasterizer if
* needed. Call the given function on each turned off range.
*
* @param query_cpu_range Base CPU address to loop over
* @param size Size in bytes of the CPU range to loop over
* @param func Function to call for each turned off region
*/
template <Type type, typename Func>
void ForEachModifiedRange(VAddr query_cpu_range, s64 size, bool clear, Func&& func) {
static_assert(type != Type::Untracked);
const s64 difference = query_cpu_range - cpu_addr;
const u64 query_begin = std::max<s64>(difference, 0);
size += std::min<s64>(difference, 0);
if (query_begin >= SizeBytes() || size < 0) {
return;
}
u64* const untracked_words = Array<Type::Untracked>();
u64* const state_words = Array<type>();
const u64 query_end = query_begin + std::min(static_cast<u64>(size), SizeBytes());
u64* const words_begin = state_words + query_begin / BYTES_PER_WORD;
u64* const words_end = state_words + Common::DivCeil(query_end, BYTES_PER_WORD);
const auto modified = [](u64 word) { return word != 0; };
const auto first_modified_word = std::find_if(words_begin, words_end, modified);
if (first_modified_word == words_end) {
// Exit early when the buffer is not modified
return;
}
const auto last_modified_word = std::find_if_not(first_modified_word, words_end, modified);
const u64 word_index_begin = std::distance(state_words, first_modified_word);
const u64 word_index_end = std::distance(state_words, last_modified_word);
const unsigned local_page_begin = std::countr_zero(*first_modified_word);
const unsigned local_page_end =
static_cast<unsigned>(PAGES_PER_WORD) - std::countl_zero(last_modified_word[-1]);
const u64 word_page_begin = word_index_begin * PAGES_PER_WORD;
const u64 word_page_end = (word_index_end - 1) * PAGES_PER_WORD;
const u64 query_page_begin = query_begin / BYTES_PER_PAGE;
const u64 query_page_end = Common::DivCeil(query_end, BYTES_PER_PAGE);
const u64 page_index_begin = std::max(word_page_begin + local_page_begin, query_page_begin);
const u64 page_index_end = std::min(word_page_end + local_page_end, query_page_end);
const u64 first_word_page_begin = page_index_begin % PAGES_PER_WORD;
const u64 last_word_page_end = (page_index_end - 1) % PAGES_PER_WORD + 1;
u64 page_begin = first_word_page_begin;
u64 current_base = 0;
u64 current_size = 0;
bool on_going = false;
for (u64 word_index = word_index_begin; word_index < word_index_end; ++word_index) {
const bool is_last_word = word_index + 1 == word_index_end;
const u64 page_end = is_last_word ? last_word_page_end : PAGES_PER_WORD;
const u64 right_offset = page_begin;
const u64 left_offset = PAGES_PER_WORD - page_end;
u64 bits = ~u64{0};
bits = (bits >> right_offset) << right_offset;
bits = (bits << left_offset) >> left_offset;
const u64 current_word = state_words[word_index] & bits;
if (clear) {
state_words[word_index] &= ~bits;
}
if constexpr (type == Type::CPU) {
const u64 current_bits = untracked_words[word_index] & bits;
untracked_words[word_index] &= ~bits;
NotifyRasterizer<true>(word_index, current_bits, ~u64{0});
}
// Exclude CPU modified pages when visiting GPU pages
const u64 word = current_word & ~(type == Type::GPU ? untracked_words[word_index] : 0);
u64 page = page_begin;
page_begin = 0;
while (page < page_end) {
const int empty_bits = std::countr_zero(word >> page);
if (on_going && empty_bits != 0) {
InvokeModifiedRange(func, current_size, current_base);
current_size = 0;
on_going = false;
}
if (empty_bits == PAGES_PER_WORD) {
break;
}
page += empty_bits;
const int continuous_bits = std::countr_one(word >> page);
if (!on_going && continuous_bits != 0) {
current_base = word_index * PAGES_PER_WORD + page;
on_going = true;
}
current_size += continuous_bits;
page += continuous_bits;
}
}
if (on_going && current_size > 0) {
InvokeModifiedRange(func, current_size, current_base);
}
}
template <typename Func>
void InvokeModifiedRange(Func&& func, u64 current_size, u64 current_base) {
const u64 current_size_bytes = current_size * BYTES_PER_PAGE;
const u64 offset_begin = current_base * BYTES_PER_PAGE;
const u64 offset_end = std::min(offset_begin + current_size_bytes, SizeBytes());
func(offset_begin, offset_end - offset_begin);
}
/**
* Returns true when a region has been modified
*
* @param offset Offset in bytes from the start of the buffer
* @param size Size in bytes of the region to query for modifications
*/
template <Type type>
[[nodiscard]] bool IsRegionModified(u64 offset, u64 size) const noexcept {
static_assert(type != Type::Untracked);
const u64* const untracked_words = Array<Type::Untracked>();
const u64* const state_words = Array<type>();
const u64 num_query_words = size / BYTES_PER_WORD + 1;
const u64 word_begin = offset / BYTES_PER_WORD;
const u64 word_end = std::min<u64>(word_begin + num_query_words, NumWords());
const u64 page_limit = Common::DivCeil(offset + size, BYTES_PER_PAGE);
u64 page_index = (offset / BYTES_PER_PAGE) % PAGES_PER_WORD;
for (u64 word_index = word_begin; word_index < word_end; ++word_index, page_index = 0) {
const u64 off_word = type == Type::GPU ? untracked_words[word_index] : 0;
const u64 word = state_words[word_index] & ~off_word;
if (word == 0) {
continue;
}
const u64 page_end = std::min((word_index + 1) * PAGES_PER_WORD, page_limit);
const u64 local_page_end = page_end % PAGES_PER_WORD;
const u64 page_end_shift = (PAGES_PER_WORD - local_page_end) % PAGES_PER_WORD;
if (((word >> page_index) << page_index) << page_end_shift != 0) {
return true;
}
}
return false;
}
/**
* Returns a begin end pair with the inclusive modified region
*
* @param offset Offset in bytes from the start of the buffer
* @param size Size in bytes of the region to query for modifications
*/
template <Type type>
[[nodiscard]] std::pair<u64, u64> ModifiedRegion(u64 offset, u64 size) const noexcept {
static_assert(type != Type::Untracked);
const u64* const untracked_words = Array<Type::Untracked>();
const u64* const state_words = Array<type>();
const u64 num_query_words = size / BYTES_PER_WORD + 1;
const u64 word_begin = offset / BYTES_PER_WORD;
const u64 word_end = std::min<u64>(word_begin + num_query_words, NumWords());
const u64 page_base = offset / BYTES_PER_PAGE;
const u64 page_limit = Common::DivCeil(offset + size, BYTES_PER_PAGE);
u64 begin = std::numeric_limits<u64>::max();
u64 end = 0;
for (u64 word_index = word_begin; word_index < word_end; ++word_index) {
const u64 off_word = type == Type::GPU ? untracked_words[word_index] : 0;
const u64 word = state_words[word_index] & ~off_word;
if (word == 0) {
continue;
}
const u64 local_page_begin = std::countr_zero(word);
const u64 local_page_end = PAGES_PER_WORD - std::countl_zero(word);
const u64 page_index = word_index * PAGES_PER_WORD;
const u64 page_begin = std::max(page_index + local_page_begin, page_base);
const u64 page_end = std::min(page_index + local_page_end, page_limit);
begin = std::min(begin, page_begin);
end = std::max(end, page_end);
}
static constexpr std::pair<u64, u64> EMPTY{0, 0};
return begin < end ? std::make_pair(begin * BYTES_PER_PAGE, end * BYTES_PER_PAGE) : EMPTY;
}
/// Returns the number of words of the buffer
[[nodiscard]] size_t NumWords() const noexcept {
return words.NumWords();
}
/// Returns true when the buffer fits in the small vector optimization
[[nodiscard]] bool IsShort() const noexcept {
return words.IsShort();
}
RasterizerInterface* rasterizer = nullptr;
VAddr cpu_addr = 0; VAddr cpu_addr = 0;
Words words; WordManager<RasterizerInterface> word_manager;
BufferFlagBits flags{}; BufferFlagBits flags{};
int stream_score = 0; int stream_score = 0;
size_t lru_id = SIZE_MAX; size_t lru_id = SIZE_MAX;

4
src/video_core/buffer_cache/buffer_cache.cpp
View File

@@ -1,5 +1,5 @@
// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project // SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later // SPDX-License-Identifier: GPL-3.0-or-later
#include "common/microprofile.h" #include "common/microprofile.h"

904
src/video_core/buffer_cache/buffer_cache.h
View File

File diff suppressed because it is too large Load Diff

507
src/video_core/buffer_cache/buffer_cache_base.h Normal file
View File

@@ -0,0 +1,507 @@
// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later
#pragma once
#include <algorithm>
#include <array>
#include <memory>
#include <mutex>
#include <numeric>
#include <span>
#include <unordered_map>
#include <vector>
#include <boost/container/small_vector.hpp>
#define BOOST_NO_MT
#include <boost/pool/detail/mutex.hpp>
#undef BOOST_NO_MT
#include <boost/icl/interval_set.hpp>
#include <boost/pool/pool.hpp>
#include <boost/pool/pool_alloc.hpp>
#include "common/common_types.h"
#include "common/div_ceil.h"
#include "common/literals.h"
#include "common/lru_cache.h"
#include "common/microprofile.h"
#include "common/scope_exit.h"
#include "common/settings.h"
#include "core/memory.h"
#include "video_core/buffer_cache/buffer_base.h"
#include "video_core/control/channel_state_cache.h"
#include "video_core/delayed_destruction_ring.h"
#include "video_core/dirty_flags.h"
#include "video_core/engines/draw_manager.h"
#include "video_core/engines/kepler_compute.h"
#include "video_core/engines/maxwell_3d.h"
#include "video_core/memory_manager.h"
#include "video_core/rasterizer_interface.h"
#include "video_core/surface.h"
#include "video_core/texture_cache/slot_vector.h"
#include "video_core/texture_cache/types.h"
namespace boost {
template <typename T>
class fast_pool_allocator<T, default_user_allocator_new_delete, details::pool::default_mutex, 4096,
0>;
}
namespace VideoCommon {
MICROPROFILE_DECLARE(GPU_PrepareBuffers);
MICROPROFILE_DECLARE(GPU_BindUploadBuffers);
MICROPROFILE_DECLARE(GPU_DownloadMemory);
using BufferId = SlotId;
using VideoCore::Surface::PixelFormat;
using namespace Common::Literals;
constexpr u32 NUM_VERTEX_BUFFERS = 32;
constexpr u32 NUM_TRANSFORM_FEEDBACK_BUFFERS = 4;
constexpr u32 NUM_GRAPHICS_UNIFORM_BUFFERS = 18;
constexpr u32 NUM_COMPUTE_UNIFORM_BUFFERS = 8;
constexpr u32 NUM_STORAGE_BUFFERS = 16;
constexpr u32 NUM_TEXTURE_BUFFERS = 16;
constexpr u32 NUM_STAGES = 5;
using UniformBufferSizes = std::array<std::array<u32, NUM_GRAPHICS_UNIFORM_BUFFERS>, NUM_STAGES>;
using ComputeUniformBufferSizes = std::array<u32, NUM_COMPUTE_UNIFORM_BUFFERS>;
enum class ObtainBufferSynchronize : u32 {
NoSynchronize = 0,
FullSynchronize = 1,
SynchronizeNoDirty = 2,
};
enum class ObtainBufferOperation : u32 {
DoNothing = 0,
MarkAsWritten = 1,
DiscardWrite = 2,
MarkQuery = 3,
};
template <typename P>
class BufferCache : public VideoCommon::ChannelSetupCaches<VideoCommon::ChannelInfo> {
// Page size for caching purposes.
// This is unrelated to the CPU page size and it can be changed as it seems optimal.
static constexpr u32 PAGE_BITS = 16;
static constexpr u64 PAGE_SIZE = u64{1} << PAGE_BITS;
static constexpr u32 CPU_PAGE_BITS = 12;
static constexpr u64 CPU_PAGE_SIZE = u64{1} << CPU_PAGE_BITS;
static constexpr bool IS_OPENGL = P::IS_OPENGL;
static constexpr bool HAS_PERSISTENT_UNIFORM_BUFFER_BINDINGS =
P::HAS_PERSISTENT_UNIFORM_BUFFER_BINDINGS;
static constexpr bool HAS_FULL_INDEX_AND_PRIMITIVE_SUPPORT =
P::HAS_FULL_INDEX_AND_PRIMITIVE_SUPPORT;
static constexpr bool NEEDS_BIND_UNIFORM_INDEX = P::NEEDS_BIND_UNIFORM_INDEX;
static constexpr bool NEEDS_BIND_STORAGE_INDEX = P::NEEDS_BIND_STORAGE_INDEX;
static constexpr bool USE_MEMORY_MAPS = P::USE_MEMORY_MAPS;
static constexpr bool SEPARATE_IMAGE_BUFFERS_BINDINGS = P::SEPARATE_IMAGE_BUFFER_BINDINGS;
static constexpr bool IMPLEMENTS_ASYNC_DOWNLOADS = P::IMPLEMENTS_ASYNC_DOWNLOADS;
static constexpr BufferId NULL_BUFFER_ID{0};
static constexpr s64 DEFAULT_EXPECTED_MEMORY = 512_MiB;
static constexpr s64 DEFAULT_CRITICAL_MEMORY = 1_GiB;
static constexpr s64 TARGET_THRESHOLD = 4_GiB;
using Maxwell = Tegra::Engines::Maxwell3D::Regs;
using Runtime = typename P::Runtime;
using Buffer = typename P::Buffer;
using Async_Buffer = typename P::Async_Buffer;
using MemoryTracker = typename P::MemoryTracker;
using IntervalCompare = ICL_COMPARE_INSTANCE(ICL_COMPARE_DEFAULT, VAddr);
using IntervalInstance = ICL_INTERVAL_INSTANCE(ICL_INTERVAL_DEFAULT, VAddr, IntervalCompare);
using IntervalAllocator = boost::fast_pool_allocator;
using IntervalSet =
boost::icl::interval_set<VAddr, IntervalCompare, IntervalInstance, IntervalAllocator>;
using IntervalType = typename IntervalSet::interval_type;
struct Empty {};
struct OverlapResult {
std::vector<BufferId> ids;
VAddr begin;
VAddr end;
bool has_stream_leap = false;
};
struct Binding {
VAddr cpu_addr{};
u32 size{};
BufferId buffer_id;
};
struct TextureBufferBinding : Binding {
PixelFormat format;
};
static constexpr Binding NULL_BINDING{
.cpu_addr = 0,
.size = 0,
.buffer_id = NULL_BUFFER_ID,
};
public:
static constexpr u32 DEFAULT_SKIP_CACHE_SIZE = static_cast<u32>(4_KiB);
explicit BufferCache(VideoCore::RasterizerInterface& rasterizer_,
Core::Memory::Memory& cpu_memory_, Runtime& runtime_);
void TickFrame();
void WriteMemory(VAddr cpu_addr, u64 size);
void CachedWriteMemory(VAddr cpu_addr, u64 size);
void DownloadMemory(VAddr cpu_addr, u64 size);
bool InlineMemory(VAddr dest_address, size_t copy_size, std::span<const u8> inlined_buffer);
void BindGraphicsUniformBuffer(size_t stage, u32 index, GPUVAddr gpu_addr, u32 size);
void DisableGraphicsUniformBuffer(size_t stage, u32 index);
void UpdateGraphicsBuffers(bool is_indexed);
void UpdateComputeBuffers();
void BindHostGeometryBuffers(bool is_indexed);
void BindHostStageBuffers(size_t stage);
void BindHostComputeBuffers();
void SetUniformBuffersState(const std::array<u32, NUM_STAGES>& mask,
const UniformBufferSizes* sizes);
void SetComputeUniformBufferState(u32 mask, const ComputeUniformBufferSizes* sizes);
void UnbindGraphicsStorageBuffers(size_t stage);
void BindGraphicsStorageBuffer(size_t stage, size_t ssbo_index, u32 cbuf_index, u32 cbuf_offset,
bool is_written);
void UnbindGraphicsTextureBuffers(size_t stage);
void BindGraphicsTextureBuffer(size_t stage, size_t tbo_index, GPUVAddr gpu_addr, u32 size,
PixelFormat format, bool is_written, bool is_image);
void UnbindComputeStorageBuffers();
void BindComputeStorageBuffer(size_t ssbo_index, u32 cbuf_index, u32 cbuf_offset,
bool is_written);
void UnbindComputeTextureBuffers();
void BindComputeTextureBuffer(size_t tbo_index, GPUVAddr gpu_addr, u32 size, PixelFormat format,
bool is_written, bool is_image);
[[nodiscard]] std::pair<Buffer*, u32> ObtainBuffer(GPUVAddr gpu_addr, u32 size,
ObtainBufferSynchronize sync_info,
ObtainBufferOperation post_op);
void FlushCachedWrites();
/// Return true when there are uncommitted buffers to be downloaded
[[nodiscard]] bool HasUncommittedFlushes() const noexcept;
void AccumulateFlushes();
/// Return true when the caller should wait for async downloads
[[nodiscard]] bool ShouldWaitAsyncFlushes() const noexcept;
/// Commit asynchronous downloads
void CommitAsyncFlushes();
void CommitAsyncFlushesHigh();
void CommitAsyncQueries();
/// Pop asynchronous downloads
void PopAsyncFlushes();
void PopAsyncQueries();
void PopAsyncBuffers();
bool DMACopy(GPUVAddr src_address, GPUVAddr dest_address, u64 amount);
bool DMAClear(GPUVAddr src_address, u64 amount, u32 value);
/// Return true when a CPU region is modified from the GPU
[[nodiscard]] bool IsRegionGpuModified(VAddr addr, size_t size);
/// Return true when a region is registered on the cache
[[nodiscard]] bool IsRegionRegistered(VAddr addr, size_t size);
/// Return true when a CPU region is modified from the CPU
[[nodiscard]] bool IsRegionCpuModified(VAddr addr, size_t size);
void SetDrawIndirect(const Tegra::Engines::DrawManager::IndirectParams* current_draw_indirect_) {
current_draw_indirect = current_draw_indirect_;
}
[[nodiscard]] std::pair<Buffer*, u32> GetDrawIndirectCount();
[[nodiscard]] std::pair<Buffer*, u32> GetDrawIndirectBuffer();
std::recursive_mutex mutex;
Runtime& runtime;
private:
template <typename Func>
static void ForEachEnabledBit(u32 enabled_mask, Func&& func) {
for (u32 index = 0; enabled_mask != 0; ++index, enabled_mask >>= 1) {
const int disabled_bits = std::countr_zero(enabled_mask);
index += disabled_bits;
enabled_mask >>= disabled_bits;
func(index);
}
}
template <typename Func>
void ForEachBufferInRange(VAddr cpu_addr, u64 size, Func&& func) {
const u64 page_end = Common::DivCeil(cpu_addr + size, PAGE_SIZE);
for (u64 page = cpu_addr >> PAGE_BITS; page < page_end;) {
const BufferId buffer_id = page_table[page];
if (!buffer_id) {
++page;
continue;
}
Buffer& buffer = slot_buffers[buffer_id];
func(buffer_id, buffer);
const VAddr end_addr = buffer.CpuAddr() + buffer.SizeBytes();
page = Common::DivCeil(end_addr, PAGE_SIZE);
}
}
template <typename Func>
void ForEachInRangeSet(IntervalSet& current_range, VAddr cpu_addr, u64 size, Func&& func) {
const VAddr start_address = cpu_addr;
const VAddr end_address = start_address + size;
const IntervalType search_interval{start_address, end_address};
auto it = current_range.lower_bound(search_interval);
if (it == current_range.end()) {
return;
}
auto end_it = current_range.upper_bound(search_interval);
for (; it != end_it; it++) {
VAddr inter_addr_end = it->upper();
VAddr inter_addr = it->lower();
if (inter_addr_end > end_address) {
inter_addr_end = end_address;
}
if (inter_addr < start_address) {
inter_addr = start_address;
}
func(inter_addr, inter_addr_end);
}
}
static bool IsRangeGranular(VAddr cpu_addr, size_t size) {
return (cpu_addr & ~Core::Memory::YUZU_PAGEMASK) ==
((cpu_addr + size) & ~Core::Memory::YUZU_PAGEMASK);
}
void RunGarbageCollector();
void BindHostIndexBuffer();
void BindHostVertexBuffers();
void BindHostDrawIndirectBuffers();
void BindHostGraphicsUniformBuffers(size_t stage);
void BindHostGraphicsUniformBuffer(size_t stage, u32 index, u32 binding_index, bool needs_bind);
void BindHostGraphicsStorageBuffers(size_t stage);
void BindHostGraphicsTextureBuffers(size_t stage);
void BindHostTransformFeedbackBuffers();
void BindHostComputeUniformBuffers();
void BindHostComputeStorageBuffers();
void BindHostComputeTextureBuffers();
void DoUpdateGraphicsBuffers(bool is_indexed);
void DoUpdateComputeBuffers();
void UpdateIndexBuffer();
void UpdateVertexBuffers();
void UpdateVertexBuffer(u32 index);
void UpdateDrawIndirect();
void UpdateUniformBuffers(size_t stage);
void UpdateStorageBuffers(size_t stage);
void UpdateTextureBuffers(size_t stage);
void UpdateTransformFeedbackBuffers();
void UpdateTransformFeedbackBuffer(u32 index);
void UpdateComputeUniformBuffers();
void UpdateComputeStorageBuffers();
void UpdateComputeTextureBuffers();
void MarkWrittenBuffer(BufferId buffer_id, VAddr cpu_addr, u32 size);
[[nodiscard]] BufferId FindBuffer(VAddr cpu_addr, u32 size);
[[nodiscard]] OverlapResult ResolveOverlaps(VAddr cpu_addr, u32 wanted_size);
void JoinOverlap(BufferId new_buffer_id, BufferId overlap_id, bool accumulate_stream_score);
[[nodiscard]] BufferId CreateBuffer(VAddr cpu_addr, u32 wanted_size);
void Register(BufferId buffer_id);
void Unregister(BufferId buffer_id);
template <bool insert>
void ChangeRegister(BufferId buffer_id);
void TouchBuffer(Buffer& buffer, BufferId buffer_id) noexcept;
bool SynchronizeBuffer(Buffer& buffer, VAddr cpu_addr, u32 size);
bool SynchronizeBufferImpl(Buffer& buffer, VAddr cpu_addr, u32 size);
bool SynchronizeBufferNoModified(Buffer& buffer, VAddr cpu_addr, u32 size);
void UploadMemory(Buffer& buffer, u64 total_size_bytes, u64 largest_copy,
std::span<BufferCopy> copies);
void ImmediateUploadMemory(Buffer& buffer, u64 largest_copy,
std::span<const BufferCopy> copies);
void MappedUploadMemory(Buffer& buffer, u64 total_size_bytes, std::span<BufferCopy> copies);
void DownloadBufferMemory(Buffer& buffer_id);
void DownloadBufferMemory(Buffer& buffer_id, VAddr cpu_addr, u64 size);
void DeleteBuffer(BufferId buffer_id, bool do_not_mark = false);
void NotifyBufferDeletion();
[[nodiscard]] Binding StorageBufferBinding(GPUVAddr ssbo_addr, u32 cbuf_index, bool is_written) const;
[[nodiscard]] TextureBufferBinding GetTextureBufferBinding(GPUVAddr gpu_addr, u32 size,
PixelFormat format);
[[nodiscard]] std::span<const u8> ImmediateBufferWithData(VAddr cpu_addr, size_t size);
[[nodiscard]] std::span<u8> ImmediateBuffer(size_t wanted_capacity);
[[nodiscard]] bool HasFastUniformBufferBound(size_t stage, u32 binding_index) const noexcept;
void ClearDownload(IntervalType subtract_interval);
VideoCore::RasterizerInterface& rasterizer;
Core::Memory::Memory& cpu_memory;
SlotVector<Buffer> slot_buffers;
DelayedDestructionRing<Buffer, 8> delayed_destruction_ring;
const Tegra::Engines::DrawManager::IndirectParams* current_draw_indirect{};
u32 last_index_count = 0;
Binding index_buffer;
std::array<Binding, NUM_VERTEX_BUFFERS> vertex_buffers;
std::array<std::array<Binding, NUM_GRAPHICS_UNIFORM_BUFFERS>, NUM_STAGES> uniform_buffers;
std::array<std::array<Binding, NUM_STORAGE_BUFFERS>, NUM_STAGES> storage_buffers;
std::array<std::array<TextureBufferBinding, NUM_TEXTURE_BUFFERS>, NUM_STAGES> texture_buffers;
std::array<Binding, NUM_TRANSFORM_FEEDBACK_BUFFERS> transform_feedback_buffers;
Binding count_buffer_binding;
Binding indirect_buffer_binding;
std::array<Binding, NUM_COMPUTE_UNIFORM_BUFFERS> compute_uniform_buffers;
std::array<Binding, NUM_STORAGE_BUFFERS> compute_storage_buffers;
std::array<TextureBufferBinding, NUM_TEXTURE_BUFFERS> compute_texture_buffers;
std::array<u32, NUM_STAGES> enabled_uniform_buffer_masks{};
u32 enabled_compute_uniform_buffer_mask = 0;
const UniformBufferSizes* uniform_buffer_sizes{};
const ComputeUniformBufferSizes* compute_uniform_buffer_sizes{};
std::array<u32, NUM_STAGES> enabled_storage_buffers{};
std::array<u32, NUM_STAGES> written_storage_buffers{};
u32 enabled_compute_storage_buffers = 0;
u32 written_compute_storage_buffers = 0;
std::array<u32, NUM_STAGES> enabled_texture_buffers{};
std::array<u32, NUM_STAGES> written_texture_buffers{};
std::array<u32, NUM_STAGES> image_texture_buffers{};
u32 enabled_compute_texture_buffers = 0;
u32 written_compute_texture_buffers = 0;
u32 image_compute_texture_buffers = 0;
std::array<u32, 16> uniform_cache_hits{};
std::array<u32, 16> uniform_cache_shots{};
u32 uniform_buffer_skip_cache_size = DEFAULT_SKIP_CACHE_SIZE;
bool has_deleted_buffers = false;
std::conditional_t<HAS_PERSISTENT_UNIFORM_BUFFER_BINDINGS, std::array<u32, NUM_STAGES>, Empty>
dirty_uniform_buffers{};
std::conditional_t<IS_OPENGL, std::array<u32, NUM_STAGES>, Empty> fast_bound_uniform_buffers{};
std::conditional_t<HAS_PERSISTENT_UNIFORM_BUFFER_BINDINGS,
std::array<std::array<u32, NUM_GRAPHICS_UNIFORM_BUFFERS>, NUM_STAGES>, Empty>
uniform_buffer_binding_sizes{};
std::vector<BufferId> cached_write_buffer_ids;
MemoryTracker memory_tracker;
IntervalSet uncommitted_ranges;
IntervalSet common_ranges;
IntervalSet cached_ranges;
std::deque<IntervalSet> committed_ranges;
// Async Buffers
std::deque<IntervalSet> async_downloads;
std::deque<std::optional<Async_Buffer>> async_buffers;
std::deque<boost::container::small_vector<BufferCopy, 4>> pending_downloads;
std::optional<Async_Buffer> current_buffer;
// queries
boost::container::small_vector<std::pair<VAddr, size_t>, 8> pending_queries;
std::deque<boost::container::small_vector<BufferCopy, 8>> committed_queries;
boost::container::small_vector<u64, 8> flushed_queries;
std::deque<std::optional<Async_Buffer>> query_async_buffers;
size_t immediate_buffer_capacity = 0;
Common::ScratchBuffer<u8> immediate_buffer_alloc;
struct LRUItemParams {
using ObjectType = BufferId;
using TickType = u64;
};
Common::LeastRecentlyUsedCache<LRUItemParams> lru_cache;
u64 frame_tick = 0;
u64 total_used_memory = 0;
u64 minimum_memory = 0;
u64 critical_memory = 0;
std::array<BufferId, ((1ULL << 39) >> PAGE_BITS)> page_table;
};
} // namespace VideoCommon

258
src/video_core/buffer_cache/memory_tracker_base.h Normal file
View File

@@ -0,0 +1,258 @@
// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later
#pragma once
#include <algorithm>
#include <bit>
#include <deque>
#include <limits>
#include <type_traits>
#include <unordered_set>
#include <utility>
#include "common/alignment.h"
#include "common/common_types.h"
#include "video_core/buffer_cache/word_manager.h"
namespace VideoCommon {
template <class RasterizerInterface>
class MemoryTrackerBase {
static constexpr size_t MAX_CPU_PAGE_BITS = 39;
static constexpr size_t HIGHER_PAGE_BITS = 22;
static constexpr size_t HIGHER_PAGE_SIZE = 1ULL << HIGHER_PAGE_BITS;
static constexpr size_t HIGHER_PAGE_MASK = HIGHER_PAGE_SIZE - 1ULL;
static constexpr size_t NUM_HIGH_PAGES = 1ULL << (MAX_CPU_PAGE_BITS - HIGHER_PAGE_BITS);
static constexpr size_t MANAGER_POOL_SIZE = 32;
static constexpr size_t WORDS_STACK_NEEDED = HIGHER_PAGE_SIZE / BYTES_PER_WORD;
using Manager = WordManager<RasterizerInterface, WORDS_STACK_NEEDED>;
public:
MemoryTrackerBase(RasterizerInterface& rasterizer_) : rasterizer{&rasterizer_} {}
~MemoryTrackerBase() = default;
/// Returns the inclusive CPU modified range in a begin end pair
[[nodiscard]] std::pair<u64, u64> ModifiedCpuRegion(VAddr query_cpu_addr,
u64 query_size) noexcept {
return IteratePairs<true>(query_cpu_addr, query_size,
[](Manager* manager, u64 offset, size_t size) {
return manager->ModifiedRegion<Type::CPU>(offset, size);
});
}
/// Returns the inclusive GPU modified range in a begin end pair
[[nodiscard]] std::pair<u64, u64> ModifiedGpuRegion(VAddr query_cpu_addr,
u64 query_size) noexcept {
return IteratePairs<false>(query_cpu_addr, query_size,
[](Manager* manager, u64 offset, size_t size) {
return manager->ModifiedRegion<Type::GPU>(offset, size);
});
}
/// Returns true if a region has been modified from the CPU
[[nodiscard]] bool IsRegionCpuModified(VAddr query_cpu_addr, u64 query_size) noexcept {
return IteratePages<true>(query_cpu_addr, query_size,
[](Manager* manager, u64 offset, size_t size) {
return manager->IsRegionModified<Type::CPU>(offset, size);
});
}
/// Returns true if a region has been modified from the GPU
[[nodiscard]] bool IsRegionGpuModified(VAddr query_cpu_addr, u64 query_size) noexcept {
return IteratePages<false>(query_cpu_addr, query_size,
[](Manager* manager, u64 offset, size_t size) {
return manager->IsRegionModified<Type::GPU>(offset, size);
});
}
/// Mark region as CPU modified, notifying the rasterizer about this change
void MarkRegionAsCpuModified(VAddr dirty_cpu_addr, u64 query_size) {
IteratePages<true>(
dirty_cpu_addr, query_size, [](Manager* manager, u64 offset, size_t size) {
manager->ChangeRegionState<Type::CPU, true>(manager->GetCpuAddr() + offset, size);
});
}
/// Unmark region as CPU modified, notifying the rasterizer about this change
void UnmarkRegionAsCpuModified(VAddr dirty_cpu_addr, u64 query_size) {
IteratePages<true>(
dirty_cpu_addr, query_size, [](Manager* manager, u64 offset, size_t size) {
manager->ChangeRegionState<Type::CPU, false>(manager->GetCpuAddr() + offset, size);
});
}
/// Mark region as modified from the host GPU
void MarkRegionAsGpuModified(VAddr dirty_cpu_addr, u64 query_size) noexcept {
IteratePages<true>(
dirty_cpu_addr, query_size, [](Manager* manager, u64 offset, size_t size) {
manager->ChangeRegionState<Type::GPU, true>(manager->GetCpuAddr() + offset, size);
});
}
/// Unmark region as modified from the host GPU
void UnmarkRegionAsGpuModified(VAddr dirty_cpu_addr, u64 query_size) noexcept {
IteratePages<true>(
dirty_cpu_addr, query_size, [](Manager* manager, u64 offset, size_t size) {
manager->ChangeRegionState<Type::GPU, false>(manager->GetCpuAddr() + offset, size);
});
}
/// Mark region as modified from the CPU
/// but don't mark it as modified until FlusHCachedWrites is called.
void CachedCpuWrite(VAddr dirty_cpu_addr, u64 query_size) {
IteratePages<true>(
dirty_cpu_addr, query_size, [this](Manager* manager, u64 offset, size_t size) {
const VAddr cpu_address = manager->GetCpuAddr() + offset;
manager->ChangeRegionState<Type::CachedCPU, true>(cpu_address, size);
cached_pages.insert(static_cast<u32>(cpu_address >> HIGHER_PAGE_BITS));
});
}
/// Flushes cached CPU writes, and notify the rasterizer about the deltas
void FlushCachedWrites(VAddr query_cpu_addr, u64 query_size) noexcept {
IteratePages<false>(query_cpu_addr, query_size,
[](Manager* manager, [[maybe_unused]] u64 offset,
[[maybe_unused]] size_t size) { manager->FlushCachedWrites(); });
}
void FlushCachedWrites() noexcept {
for (auto id : cached_pages) {
top_tier[id]->FlushCachedWrites();
}
cached_pages.clear();
}
/// Call 'func' for each CPU modified range and unmark those pages as CPU modified
template <typename Func>
void ForEachUploadRange(VAddr query_cpu_range, u64 query_size, Func&& func) {
IteratePages<true>(query_cpu_range, query_size,
[&func](Manager* manager, u64 offset, size_t size) {
manager->ForEachModifiedRange<Type::CPU>(
manager->GetCpuAddr() + offset, size, true, func);
});
}
/// Call 'func' for each GPU modified range and unmark those pages as GPU modified
template <typename Func>
void ForEachDownloadRange(VAddr query_cpu_range, u64 query_size, bool clear, Func&& func) {
IteratePages<false>(query_cpu_range, query_size,
[&func, clear](Manager* manager, u64 offset, size_t size) {
manager->ForEachModifiedRange<Type::GPU>(
manager->GetCpuAddr() + offset, size, clear, func);
});
}
template <typename Func>
void ForEachDownloadRangeAndClear(VAddr query_cpu_range, u64 query_size, Func&& func) {
IteratePages<false>(query_cpu_range, query_size,
[&func](Manager* manager, u64 offset, size_t size) {
manager->ForEachModifiedRange<Type::GPU>(
manager->GetCpuAddr() + offset, size, true, func);
});
}
private:
template <bool create_region_on_fail, typename Func>
bool IteratePages(VAddr cpu_address, size_t size, Func&& func) {
using FuncReturn = typename std::invoke_result<Func, Manager*, u64, size_t>::type;
static constexpr bool BOOL_BREAK = std::is_same_v<FuncReturn, bool>;
std::size_t remaining_size{size};
std::size_t page_index{cpu_address >> HIGHER_PAGE_BITS};
u64 page_offset{cpu_address & HIGHER_PAGE_MASK};
while (remaining_size > 0) {
const std::size_t copy_amount{std::min(HIGHER_PAGE_SIZE - page_offset, remaining_size)};
auto* manager{top_tier[page_index]};
if (manager) {
if constexpr (BOOL_BREAK) {
if (func(manager, page_offset, copy_amount)) {
return true;
}
} else {
func(manager, page_offset, copy_amount);
}
} else if constexpr (create_region_on_fail) {
CreateRegion(page_index);
manager = top_tier[page_index];
if constexpr (BOOL_BREAK) {
if (func(manager, page_offset, copy_amount)) {
return true;
}
} else {
func(manager, page_offset, copy_amount);
}
}
page_index++;
page_offset = 0;
remaining_size -= copy_amount;
}
return false;
}
template <bool create_region_on_fail, typename Func>
std::pair<u64, u64> IteratePairs(VAddr cpu_address, size_t size, Func&& func) {
std::size_t remaining_size{size};
std::size_t page_index{cpu_address >> HIGHER_PAGE_BITS};
u64 page_offset{cpu_address & HIGHER_PAGE_MASK};
u64 begin = std::numeric_limits<u64>::max();
u64 end = 0;
while (remaining_size > 0) {
const std::size_t copy_amount{std::min(HIGHER_PAGE_SIZE - page_offset, remaining_size)};
auto* manager{top_tier[page_index]};
const auto execute = [&] {
auto [new_begin, new_end] = func(manager, page_offset, copy_amount);
if (new_begin != 0 || new_end != 0) {
const u64 base_address = page_index << HIGHER_PAGE_BITS;
begin = std::min(new_begin + base_address, begin);
end = std::max(new_end + base_address, end);
}
};
if (manager) {
execute();
} else if constexpr (create_region_on_fail) {
CreateRegion(page_index);
manager = top_tier[page_index];
execute();
}
page_index++;
page_offset = 0;
remaining_size -= copy_amount;
}
return begin < end ? std::make_pair(begin, end) : std::make_pair(0ULL, 0ULL);
}
void CreateRegion(std::size_t page_index) {
const VAddr base_cpu_addr = page_index << HIGHER_PAGE_BITS;
top_tier[page_index] = GetNewManager(base_cpu_addr);
}
Manager* GetNewManager(VAddr base_cpu_addess) {
const auto on_return = [&] {
auto* new_manager = free_managers.front();
new_manager->SetCpuAddress(base_cpu_addess);
free_managers.pop_front();
return new_manager;
};
if (!free_managers.empty()) {
return on_return();
}
manager_pool.emplace_back();
auto& last_pool = manager_pool.back();
for (size_t i = 0; i < MANAGER_POOL_SIZE; i++) {
new (&last_pool[i]) Manager(0, *rasterizer, HIGHER_PAGE_SIZE);
free_managers.push_back(&last_pool[i]);
}
return on_return();
}
std::deque<std::array<Manager, MANAGER_POOL_SIZE>> manager_pool;
std::deque<Manager*> free_managers;
std::array<Manager*, NUM_HIGH_PAGES> top_tier{};
std::unordered_set<u32> cached_pages;
RasterizerInterface* rasterizer = nullptr;
};
} // namespace VideoCommon

474
src/video_core/buffer_cache/word_manager.h Normal file
View File

@@ -0,0 +1,474 @@
// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later
#pragma once
#include <algorithm>
#include <bit>
#include <limits>
#include <utility>
#include "common/alignment.h"
#include "common/common_funcs.h"
#include "common/common_types.h"
#include "common/div_ceil.h"
#include "core/memory.h"
namespace VideoCommon {
constexpr u64 PAGES_PER_WORD = 64;
constexpr u64 BYTES_PER_PAGE = Core::Memory::YUZU_PAGESIZE;
constexpr u64 BYTES_PER_WORD = PAGES_PER_WORD * BYTES_PER_PAGE;
/// Vector tracking modified pages tightly packed with small vector optimization
template <size_t stack_words = 1>
union WordsArray {
/// Returns the pointer to the words state
[[nodiscard]] const u64* Pointer(bool is_short) const noexcept {
return is_short ? stack.data() : heap;
}
/// Returns the pointer to the words state
[[nodiscard]] u64* Pointer(bool is_short) noexcept {
return is_short ? stack.data() : heap;
}
std::array<u64, stack_words> stack{}; ///< Small buffers storage
u64* heap; ///< Not-small buffers pointer to the storage
};
template <size_t stack_words = 1>
struct Words {
explicit Words() = default;
explicit Words(u64 size_bytes_) : size_bytes{size_bytes_} {
if (IsShort()) {
cpu.stack.fill(~u64{0});
gpu.stack.fill(0);
cached_cpu.stack.fill(0);
untracked.stack.fill(~u64{0});
} else {
const size_t num_words = NumWords();
// Share allocation between CPU and GPU pages and set their default values
u64* const alloc = new u64[num_words * 4];
cpu.heap = alloc;
gpu.heap = alloc + num_words;
cached_cpu.heap = alloc + num_words * 2;
untracked.heap = alloc + num_words * 3;
std::fill_n(cpu.heap, num_words, ~u64{0});
std::fill_n(gpu.heap, num_words, 0);
std::fill_n(cached_cpu.heap, num_words, 0);
std::fill_n(untracked.heap, num_words, ~u64{0});
}
// Clean up tailing bits
const u64 last_word_size = size_bytes % BYTES_PER_WORD;
const u64 last_local_page = Common::DivCeil(last_word_size, BYTES_PER_PAGE);
const u64 shift = (PAGES_PER_WORD - last_local_page) % PAGES_PER_WORD;
const u64 last_word = (~u64{0} << shift) >> shift;
cpu.Pointer(IsShort())[NumWords() - 1] = last_word;
untracked.Pointer(IsShort())[NumWords() - 1] = last_word;
}
~Words() {
Release();
}
Words& operator=(Words&& rhs) noexcept {
Release();
size_bytes = rhs.size_bytes;
cpu = rhs.cpu;
gpu = rhs.gpu;
cached_cpu = rhs.cached_cpu;
untracked = rhs.untracked;
rhs.cpu.heap = nullptr;
return *this;
}
Words(Words&& rhs) noexcept
: size_bytes{rhs.size_bytes}, cpu{rhs.cpu}, gpu{rhs.gpu},
cached_cpu{rhs.cached_cpu}, untracked{rhs.untracked} {
rhs.cpu.heap = nullptr;
}
Words& operator=(const Words&) = delete;
Words(const Words&) = delete;
/// Returns true when the buffer fits in the small vector optimization
[[nodiscard]] bool IsShort() const noexcept {
return size_bytes <= stack_words * BYTES_PER_WORD;
}
/// Returns the number of words of the buffer
[[nodiscard]] size_t NumWords() const noexcept {
return Common::DivCeil(size_bytes, BYTES_PER_WORD);
}
/// Release buffer resources
void Release() {
if (!IsShort()) {
// CPU written words is the base for the heap allocation
delete[] cpu.heap;
}
}
u64 size_bytes = 0;
WordsArray<stack_words> cpu;
WordsArray<stack_words> gpu;
WordsArray<stack_words> cached_cpu;
WordsArray<stack_words> untracked;
};
enum class Type {
CPU,
GPU,
CachedCPU,
Untracked,
};
template <class RasterizerInterface, size_t stack_words = 1>
class WordManager {
public:
explicit WordManager(VAddr cpu_addr_, RasterizerInterface& rasterizer_, u64 size_bytes)
: cpu_addr{cpu_addr_}, rasterizer{&rasterizer_}, words{size_bytes} {}
explicit WordManager() = default;
void SetCpuAddress(VAddr new_cpu_addr) {
cpu_addr = new_cpu_addr;
}
VAddr GetCpuAddr() const {
return cpu_addr;
}
/**
* Change the state of a range of pages
*
* @param dirty_addr Base address to mark or unmark as modified
* @param size Size in bytes to mark or unmark as modified
*/
template <Type type, bool enable>
void ChangeRegionState(u64 dirty_addr, s64 size) noexcept(type == Type::GPU) {
const s64 difference = dirty_addr - cpu_addr;
const u64 offset = std::max<s64>(difference, 0);
size += std::min<s64>(difference, 0);
if (offset >= SizeBytes() || size < 0) {
return;
}
u64* const untracked_words = Array<Type::Untracked>();
u64* const state_words = Array<type>();
const u64 offset_end = std::min(offset + size, SizeBytes());
const u64 begin_page_index = offset / BYTES_PER_PAGE;
const u64 begin_word_index = begin_page_index / PAGES_PER_WORD;
const u64 end_page_index = Common::DivCeil(offset_end, BYTES_PER_PAGE);
const u64 end_word_index = Common::DivCeil(end_page_index, PAGES_PER_WORD);
u64 page_index = begin_page_index % PAGES_PER_WORD;
u64 word_index = begin_word_index;
while (word_index < end_word_index) {
const u64 next_word_first_page = (word_index + 1) * PAGES_PER_WORD;
const u64 left_offset =
std::min(next_word_first_page - end_page_index, PAGES_PER_WORD) % PAGES_PER_WORD;
const u64 right_offset = page_index;
u64 bits = ~u64{0};
bits = (bits >> right_offset) << right_offset;
bits = (bits << left_offset) >> left_offset;
if constexpr (type == Type::CPU || type == Type::CachedCPU) {
NotifyRasterizer<!enable>(word_index, untracked_words[word_index], bits);
}
if constexpr (enable) {
state_words[word_index] |= bits;
if constexpr (type == Type::CPU || type == Type::CachedCPU) {
untracked_words[word_index] |= bits;
}
} else {
state_words[word_index] &= ~bits;
if constexpr (type == Type::CPU || type == Type::CachedCPU) {
untracked_words[word_index] &= ~bits;
}
}
page_index = 0;
++word_index;
}
}
/**
* Loop over each page in the given range, turn off those bits and notify the rasterizer if
* needed. Call the given function on each turned off range.
*
* @param query_cpu_range Base CPU address to loop over
* @param size Size in bytes of the CPU range to loop over
* @param func Function to call for each turned off region
*/
template <Type type, typename Func>
void ForEachModifiedRange(VAddr query_cpu_range, s64 size, bool clear, Func&& func) {
static_assert(type != Type::Untracked);
const s64 difference = query_cpu_range - cpu_addr;
const u64 query_begin = std::max<s64>(difference, 0);
size += std::min<s64>(difference, 0);
if (query_begin >= SizeBytes() || size < 0) {
return;
}
[[maybe_unused]] u64* const untracked_words = Array<Type::Untracked>();
[[maybe_unused]] u64* const cpu_words = Array<Type::CPU>();
u64* const state_words = Array<type>();
const u64 query_end = query_begin + std::min(static_cast<u64>(size), SizeBytes());
u64* const words_begin = state_words + query_begin / BYTES_PER_WORD;
u64* const words_end = state_words + Common::DivCeil(query_end, BYTES_PER_WORD);
u64 first_page = (query_begin / BYTES_PER_PAGE) % PAGES_PER_WORD;
const auto modified = [](u64 word) { return word != 0; };
const auto first_modified_word = std::find_if(words_begin, words_end, modified);
if (first_modified_word == words_end) {
// Exit early when the buffer is not modified
return;
}
if (first_modified_word != words_begin) {
first_page = 0;
}
std::reverse_iterator<u64*> first_word_reverse(first_modified_word);
std::reverse_iterator<u64*> last_word_iterator(words_end);
auto last_word_result = std::find_if(last_word_iterator, first_word_reverse, modified);
u64* const last_modified_word = &(*last_word_result) + 1;
const u64 word_index_begin = std::distance(state_words, first_modified_word);
const u64 word_index_end = std::distance(state_words, last_modified_word);
const unsigned local_page_begin = std::countr_zero(*first_modified_word);
const unsigned local_page_end =
static_cast<unsigned>(PAGES_PER_WORD) - std::countl_zero(last_modified_word[-1]);
const u64 word_page_begin = word_index_begin * PAGES_PER_WORD;
const u64 word_page_end = (word_index_end - 1) * PAGES_PER_WORD;
const u64 query_page_begin = query_begin / BYTES_PER_PAGE;
const u64 query_page_end = Common::DivCeil(query_end, BYTES_PER_PAGE);
const u64 page_index_begin = std::max(word_page_begin + local_page_begin, query_page_begin);
const u64 page_index_end = std::min(word_page_end + local_page_end, query_page_end);
const u64 first_word_page_begin = page_index_begin % PAGES_PER_WORD;
const u64 last_word_page_end = (page_index_end - 1) % PAGES_PER_WORD + 1;
u64 page_begin = std::max(first_word_page_begin, first_page);
u64 current_base = 0;
u64 current_size = 0;
bool on_going = false;
for (u64 word_index = word_index_begin; word_index < word_index_end; ++word_index) {
const bool is_last_word = word_index + 1 == word_index_end;
const u64 page_end = is_last_word ? last_word_page_end : PAGES_PER_WORD;
const u64 right_offset = page_begin;
const u64 left_offset = PAGES_PER_WORD - page_end;
u64 bits = ~u64{0};
bits = (bits >> right_offset) << right_offset;
bits = (bits << left_offset) >> left_offset;
const u64 current_word = state_words[word_index] & bits;
if (clear) {
state_words[word_index] &= ~bits;
}
if constexpr (type == Type::CachedCPU) {
NotifyRasterizer<false>(word_index, untracked_words[word_index], current_word);
untracked_words[word_index] |= current_word;
cpu_words[word_index] |= current_word;
}
if constexpr (type == Type::CPU) {
const u64 current_bits = untracked_words[word_index] & bits;
untracked_words[word_index] &= ~bits;
NotifyRasterizer<true>(word_index, current_bits, ~u64{0});
}
const u64 word = current_word;
u64 page = page_begin;
page_begin = 0;
while (page < page_end) {
const int empty_bits = std::countr_zero(word >> page);
if (on_going && empty_bits != 0) {
InvokeModifiedRange(func, current_size, current_base);
current_size = 0;
on_going = false;
}
if (empty_bits == PAGES_PER_WORD) {
break;
}
page += empty_bits;
const int continuous_bits = std::countr_one(word >> page);
if (!on_going && continuous_bits != 0) {
current_base = word_index * PAGES_PER_WORD + page;
on_going = true;
}
current_size += continuous_bits;
page += continuous_bits;
}
}
if (on_going && current_size > 0) {
InvokeModifiedRange(func, current_size, current_base);
}
}
template <typename Func>
void InvokeModifiedRange(Func&& func, u64 current_size, u64 current_base) {
const u64 current_size_bytes = current_size * BYTES_PER_PAGE;
const u64 offset_begin = current_base * BYTES_PER_PAGE;
const u64 offset_end = std::min(offset_begin + current_size_bytes, SizeBytes());
func(cpu_addr + offset_begin, offset_end - offset_begin);
}
/**
* Returns true when a region has been modified
*
* @param offset Offset in bytes from the start of the buffer
* @param size Size in bytes of the region to query for modifications
*/
template <Type type>
[[nodiscard]] bool IsRegionModified(u64 offset, u64 size) const noexcept {
static_assert(type != Type::Untracked);
const u64* const state_words = Array<type>();
const u64 num_query_words = size / BYTES_PER_WORD + 1;
const u64 word_begin = offset / BYTES_PER_WORD;
const u64 word_end = std::min(word_begin + num_query_words, NumWords());
const u64 page_limit = Common::DivCeil(offset + size, BYTES_PER_PAGE);
u64 page_index = (offset / BYTES_PER_PAGE) % PAGES_PER_WORD;
for (u64 word_index = word_begin; word_index < word_end; ++word_index, page_index = 0) {
const u64 word = state_words[word_index];
if (word == 0) {
continue;
}
const u64 page_end = std::min((word_index + 1) * PAGES_PER_WORD, page_limit);
const u64 local_page_end = page_end % PAGES_PER_WORD;
const u64 page_end_shift = (PAGES_PER_WORD - local_page_end) % PAGES_PER_WORD;
if (((word >> page_index) << page_index) << page_end_shift != 0) {
return true;
}
}
return false;
}
/**
* Returns a begin end pair with the inclusive modified region
*
* @param offset Offset in bytes from the start of the buffer
* @param size Size in bytes of the region to query for modifications
*/
template <Type type>
[[nodiscard]] std::pair<u64, u64> ModifiedRegion(u64 offset, u64 size) const noexcept {
static_assert(type != Type::Untracked);
const u64* const state_words = Array<type>();
const u64 num_query_words = size / BYTES_PER_WORD + 1;
const u64 word_begin = offset / BYTES_PER_WORD;
const u64 word_end = std::min(word_begin + num_query_words, NumWords());
const u64 page_base = offset / BYTES_PER_PAGE;
u64 page_begin = page_base & (PAGES_PER_WORD - 1);
u64 page_end =
Common::DivCeil(offset + size, BYTES_PER_PAGE) - (page_base & ~(PAGES_PER_WORD - 1));
u64 begin = std::numeric_limits<u64>::max();
u64 end = 0;
for (u64 word_index = word_begin; word_index < word_end; ++word_index) {
const u64 base_mask = (1ULL << page_begin) - 1ULL;
const u64 end_mask = page_end >= PAGES_PER_WORD ? 0ULL : ~((1ULL << page_end) - 1ULL);
const u64 off_word = end_mask | base_mask;
const u64 word = state_words[word_index] & ~off_word;
if (word == 0) {
page_begin = 0;
page_end -= PAGES_PER_WORD;
continue;
}
const u64 local_page_begin = std::countr_zero(word);
const u64 local_page_end = PAGES_PER_WORD - std::countl_zero(word);
const u64 page_index = word_index * PAGES_PER_WORD;
begin = std::min(begin, page_index + local_page_begin);
end = page_index + local_page_end;
page_begin = 0;
page_end -= PAGES_PER_WORD;
}
static constexpr std::pair<u64, u64> EMPTY{0, 0};
return begin < end ? std::make_pair(begin * BYTES_PER_PAGE, end * BYTES_PER_PAGE) : EMPTY;
}
/// Returns the number of words of the manager
[[nodiscard]] size_t NumWords() const noexcept {
return words.NumWords();
}
/// Returns the size in bytes of the manager
[[nodiscard]] u64 SizeBytes() const noexcept {
return words.size_bytes;
}
/// Returns true when the buffer fits in the small vector optimization
[[nodiscard]] bool IsShort() const noexcept {
return words.IsShort();
}
void FlushCachedWrites() noexcept {
const u64 num_words = NumWords();
u64* const cached_words = Array<Type::CachedCPU>();
u64* const untracked_words = Array<Type::Untracked>();
u64* const cpu_words = Array<Type::CPU>();
for (u64 word_index = 0; word_index < num_words; ++word_index) {
const u64 cached_bits = cached_words[word_index];
NotifyRasterizer<false>(word_index, untracked_words[word_index], cached_bits);
untracked_words[word_index] |= cached_bits;
cpu_words[word_index] |= cached_bits;
cached_words[word_index] = 0;
}
}
private:
template <Type type>
u64* Array() noexcept {
if constexpr (type == Type::CPU) {
return words.cpu.Pointer(IsShort());
} else if constexpr (type == Type::GPU) {
return words.gpu.Pointer(IsShort());
} else if constexpr (type == Type::CachedCPU) {
return words.cached_cpu.Pointer(IsShort());
} else if constexpr (type == Type::Untracked) {
return words.untracked.Pointer(IsShort());
}
}
template <Type type>
const u64* Array() const noexcept {
if constexpr (type == Type::CPU) {
return words.cpu.Pointer(IsShort());
} else if constexpr (type == Type::GPU) {
return words.gpu.Pointer(IsShort());
} else if constexpr (type == Type::CachedCPU) {
return words.cached_cpu.Pointer(IsShort());
} else if constexpr (type == Type::Untracked) {
return words.untracked.Pointer(IsShort());
}
}
/**
* Notify rasterizer about changes in the CPU tracking state of a word in the buffer
*
* @param word_index Index to the word to notify to the rasterizer
* @param current_bits Current state of the word
* @param new_bits New state of the word
*
* @tparam add_to_rasterizer True when the rasterizer should start tracking the new pages
*/
template <bool add_to_rasterizer>
void NotifyRasterizer(u64 word_index, u64 current_bits, u64 new_bits) const {
u64 changed_bits = (add_to_rasterizer ? current_bits : ~current_bits) & new_bits;
VAddr addr = cpu_addr + word_index * BYTES_PER_WORD;
while (changed_bits != 0) {
const int empty_bits = std::countr_zero(changed_bits);
addr += empty_bits * BYTES_PER_PAGE;
changed_bits >>= empty_bits;
const u32 continuous_bits = std::countr_one(changed_bits);
const u64 size = continuous_bits * BYTES_PER_PAGE;
const VAddr begin_addr = addr;
addr += size;
changed_bits = continuous_bits < PAGES_PER_WORD ? (changed_bits >> continuous_bits) : 0;
rasterizer->UpdatePagesCachedCount(begin_addr, size, add_to_rasterizer ? 1 : -1);
}
}
VAddr cpu_addr = 0;
RasterizerInterface* rasterizer = nullptr;
Words<stack_words> words;
};
} // namespace VideoCommon

4
src/video_core/renderer_opengl/gl_buffer_cache.h
View File

@@ -8,6 +8,7 @@
#include "common/common_types.h" #include "common/common_types.h"
#include "video_core/buffer_cache/buffer_cache.h" #include "video_core/buffer_cache/buffer_cache.h"
#include "video_core/buffer_cache/memory_tracker_base.h"
#include "video_core/rasterizer_interface.h" #include "video_core/rasterizer_interface.h"
#include "video_core/renderer_opengl/gl_device.h" #include "video_core/renderer_opengl/gl_device.h"
#include "video_core/renderer_opengl/gl_resource_manager.h" #include "video_core/renderer_opengl/gl_resource_manager.h"
@@ -200,6 +201,8 @@ private:
struct BufferCacheParams { struct BufferCacheParams {
using Runtime = OpenGL::BufferCacheRuntime; using Runtime = OpenGL::BufferCacheRuntime;
using Buffer = OpenGL::Buffer; using Buffer = OpenGL::Buffer;
using Async_Buffer = u32;
using MemoryTracker = VideoCommon::MemoryTrackerBase<VideoCore::RasterizerInterface>;
static constexpr bool IS_OPENGL = true; static constexpr bool IS_OPENGL = true;
static constexpr bool HAS_PERSISTENT_UNIFORM_BUFFER_BINDINGS = true; static constexpr bool HAS_PERSISTENT_UNIFORM_BUFFER_BINDINGS = true;
@@ -208,6 +211,7 @@ struct BufferCacheParams {
static constexpr bool NEEDS_BIND_STORAGE_INDEX = true; static constexpr bool NEEDS_BIND_STORAGE_INDEX = true;
static constexpr bool USE_MEMORY_MAPS = false; static constexpr bool USE_MEMORY_MAPS = false;
static constexpr bool SEPARATE_IMAGE_BUFFER_BINDINGS = true; static constexpr bool SEPARATE_IMAGE_BUFFER_BINDINGS = true;
static constexpr bool IMPLEMENTS_ASYNC_DOWNLOADS = false;
}; };
using BufferCache = VideoCommon::BufferCache<BufferCacheParams>; using BufferCache = VideoCommon::BufferCache<BufferCacheParams>;

9
src/video_core/renderer_opengl/gl_buffer_cache_base.cpp Normal file
View File

@@ -0,0 +1,9 @@
// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later
#include "video_core/buffer_cache/buffer_cache.h"
#include "video_core/renderer_opengl/gl_buffer_cache.h"
namespace VideoCommon {
template class VideoCommon::BufferCache<OpenGL::BufferCacheParams>;
}

8
src/video_core/renderer_vulkan/vk_buffer_cache.cpp
View File

@@ -314,8 +314,12 @@ StagingBufferRef BufferCacheRuntime::UploadStagingBuffer(size_t size) {
return staging_pool.Request(size, MemoryUsage::Upload); return staging_pool.Request(size, MemoryUsage::Upload);
} }
StagingBufferRef BufferCacheRuntime::DownloadStagingBuffer(size_t size) { StagingBufferRef BufferCacheRuntime::DownloadStagingBuffer(size_t size, bool deferred) {
return staging_pool.Request(size, MemoryUsage::Download); return staging_pool.Request(size, MemoryUsage::Download, deferred);
}
void BufferCacheRuntime::FreeDeferredStagingBuffer(StagingBufferRef& ref) {
staging_pool.FreeDeferred(ref);
} }
u64 BufferCacheRuntime::GetDeviceLocalMemory() const { u64 BufferCacheRuntime::GetDeviceLocalMemory() const {

8
src/video_core/renderer_vulkan/vk_buffer_cache.h
View File

@@ -4,6 +4,7 @@
#pragma once #pragma once
#include "video_core/buffer_cache/buffer_cache.h" #include "video_core/buffer_cache/buffer_cache.h"
#include "video_core/buffer_cache/memory_tracker_base.h"
#include "video_core/engines/maxwell_3d.h" #include "video_core/engines/maxwell_3d.h"
#include "video_core/renderer_vulkan/vk_compute_pass.h" #include "video_core/renderer_vulkan/vk_compute_pass.h"
#include "video_core/renderer_vulkan/vk_staging_buffer_pool.h" #include "video_core/renderer_vulkan/vk_staging_buffer_pool.h"
@@ -75,7 +76,9 @@ public:
[[nodiscard]] StagingBufferRef UploadStagingBuffer(size_t size); [[nodiscard]] StagingBufferRef UploadStagingBuffer(size_t size);
[[nodiscard]] StagingBufferRef DownloadStagingBuffer(size_t size); [[nodiscard]] StagingBufferRef DownloadStagingBuffer(size_t size, bool deferred = false);
void FreeDeferredStagingBuffer(StagingBufferRef& ref);
void PreCopyBarrier(); void PreCopyBarrier();
@@ -142,6 +145,8 @@ private:
struct BufferCacheParams { struct BufferCacheParams {
using Runtime = Vulkan::BufferCacheRuntime; using Runtime = Vulkan::BufferCacheRuntime;
using Buffer = Vulkan::Buffer; using Buffer = Vulkan::Buffer;
using Async_Buffer = Vulkan::StagingBufferRef;
using MemoryTracker = VideoCommon::MemoryTrackerBase<VideoCore::RasterizerInterface>;
static constexpr bool IS_OPENGL = false; static constexpr bool IS_OPENGL = false;
static constexpr bool HAS_PERSISTENT_UNIFORM_BUFFER_BINDINGS = false; static constexpr bool HAS_PERSISTENT_UNIFORM_BUFFER_BINDINGS = false;
@@ -150,6 +155,7 @@ struct BufferCacheParams {
static constexpr bool NEEDS_BIND_STORAGE_INDEX = false; static constexpr bool NEEDS_BIND_STORAGE_INDEX = false;
static constexpr bool USE_MEMORY_MAPS = true; static constexpr bool USE_MEMORY_MAPS = true;
static constexpr bool SEPARATE_IMAGE_BUFFER_BINDINGS = false; static constexpr bool SEPARATE_IMAGE_BUFFER_BINDINGS = false;
static constexpr bool IMPLEMENTS_ASYNC_DOWNLOADS = true;
}; };
using BufferCache = VideoCommon::BufferCache<BufferCacheParams>; using BufferCache = VideoCommon::BufferCache<BufferCacheParams>;

9
src/video_core/renderer_vulkan/vk_buffer_cache_base.cpp Normal file
View File

@@ -0,0 +1,9 @@
// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include "video_core/buffer_cache/buffer_cache.h"
#include "video_core/renderer_vulkan/vk_buffer_cache.h"
namespace VideoCommon {
template class VideoCommon::BufferCache<Vulkan::BufferCacheParams>;
}