1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
|
// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include <atomic>
#include <map>
#include <mutex>
#include <optional>
#include <vector>
#include <boost/container/small_vector.hpp>
#include "common/common_types.h"
#include "common/multi_level_page_table.h"
#include "common/range_map.h"
#include "common/scratch_buffer.h"
#include "common/virtual_buffer.h"
#include "video_core/cache_types.h"
#include "video_core/host1x/gpu_device_memory_manager.h"
#include "video_core/pte_kind.h"
namespace VideoCore {
class RasterizerInterface;
}
namespace VideoCommon {
class InvalidationAccumulator;
}
namespace Core {
class System;
} // namespace Core
namespace Tegra {
class MemoryManager final {
public:
explicit MemoryManager(Core::System& system_, u64 address_space_bits_ = 40,
GPUVAddr split_address = 1ULL << 34, u64 big_page_bits_ = 16,
u64 page_bits_ = 12);
explicit MemoryManager(Core::System& system_, MaxwellDeviceMemoryManager& memory_,
u64 address_space_bits_ = 40, GPUVAddr split_address = 1ULL << 34,
u64 big_page_bits_ = 16, u64 page_bits_ = 12);
~MemoryManager();
static constexpr bool HAS_FLUSH_INVALIDATION = true;
size_t GetID() const {
return unique_identifier;
}
/// Binds a renderer to the memory manager.
void BindRasterizer(VideoCore::RasterizerInterface* rasterizer);
[[nodiscard]] std::optional<DAddr> GpuToCpuAddress(GPUVAddr addr) const;
[[nodiscard]] std::optional<DAddr> GpuToCpuAddress(GPUVAddr addr, std::size_t size) const;
template <typename T>
[[nodiscard]] T Read(GPUVAddr addr) const;
template <typename T>
void Write(GPUVAddr addr, T data);
[[nodiscard]] u8* GetPointer(GPUVAddr addr);
[[nodiscard]] const u8* GetPointer(GPUVAddr addr) const;
template <typename T>
[[nodiscard]] T* GetPointer(GPUVAddr addr) {
const auto address{GpuToCpuAddress(addr)};
if (!address) {
return {};
}
return memory.GetPointer<T>(*address);
}
template <typename T>
[[nodiscard]] const T* GetPointer(GPUVAddr addr) const {
return GetPointer<T*>(addr);
}
/**
* ReadBlock and WriteBlock are full read and write operations over virtual
* GPU Memory. It's important to use these when GPU memory may not be continuous
* in the Host Memory counterpart. Note: This functions cause Host GPU Memory
* Flushes and Invalidations, respectively to each operation.
*/
void ReadBlock(GPUVAddr gpu_src_addr, void* dest_buffer, std::size_t size,
VideoCommon::CacheType which = VideoCommon::CacheType::All) const;
void WriteBlock(GPUVAddr gpu_dest_addr, const void* src_buffer, std::size_t size,
VideoCommon::CacheType which = VideoCommon::CacheType::All);
void CopyBlock(GPUVAddr gpu_dest_addr, GPUVAddr gpu_src_addr, std::size_t size,
VideoCommon::CacheType which = VideoCommon::CacheType::All);
/**
* ReadBlockUnsafe and WriteBlockUnsafe are special versions of ReadBlock and
* WriteBlock respectively. In this versions, no flushing or invalidation is actually
* done and their performance is similar to a memcpy. This functions can be used
* on either of this 2 scenarios instead of their safe counterpart:
* - Memory which is sure to never be represented in the Host GPU.
* - Memory Managed by a Cache Manager. Example: Texture Flushing should use
* WriteBlockUnsafe instead of WriteBlock since it shouldn't invalidate the texture
* being flushed.
*/
void ReadBlockUnsafe(GPUVAddr gpu_src_addr, void* dest_buffer, std::size_t size) const;
void WriteBlockUnsafe(GPUVAddr gpu_dest_addr, const void* src_buffer, std::size_t size);
void WriteBlockCached(GPUVAddr gpu_dest_addr, const void* src_buffer, std::size_t size);
/**
* Checks if a gpu region can be simply read with a pointer.
*/
[[nodiscard]] bool IsGranularRange(GPUVAddr gpu_addr, std::size_t size) const;
/**
* Checks if a gpu region is mapped by a single range of device addresses.
*/
[[nodiscard]] bool IsContinuousRange(GPUVAddr gpu_addr, std::size_t size) const;
/**
* Checks if a gpu region is mapped entirely.
*/
[[nodiscard]] bool IsFullyMappedRange(GPUVAddr gpu_addr, std::size_t size) const;
/**
* Returns a vector with all the subranges of device addresses mapped beneath.
* if the region is continuous, a single pair will be returned. If it's unmapped, an empty
* vector will be returned;
*/
boost::container::small_vector<std::pair<GPUVAddr, std::size_t>, 32> GetSubmappedRange(
GPUVAddr gpu_addr, std::size_t size) const;
GPUVAddr Map(GPUVAddr gpu_addr, DAddr dev_addr, std::size_t size,
PTEKind kind = PTEKind::INVALID, bool is_big_pages = true);
GPUVAddr MapSparse(GPUVAddr gpu_addr, std::size_t size, bool is_big_pages = true);
void Unmap(GPUVAddr gpu_addr, std::size_t size);
void FlushRegion(GPUVAddr gpu_addr, size_t size,
VideoCommon::CacheType which = VideoCommon::CacheType::All) const;
void InvalidateRegion(GPUVAddr gpu_addr, size_t size,
VideoCommon::CacheType which = VideoCommon::CacheType::All) const;
bool IsMemoryDirty(GPUVAddr gpu_addr, size_t size,
VideoCommon::CacheType which = VideoCommon::CacheType::All) const;
size_t MaxContinuousRange(GPUVAddr gpu_addr, size_t size) const;
bool IsWithinGPUAddressRange(GPUVAddr gpu_addr) const {
return gpu_addr < address_space_size;
}
PTEKind GetPageKind(GPUVAddr gpu_addr) const;
size_t GetMemoryLayoutSize(GPUVAddr gpu_addr,
size_t max_size = std::numeric_limits<size_t>::max()) const;
void FlushCaching();
const u8* GetSpan(const GPUVAddr src_addr, const std::size_t size) const;
u8* GetSpan(const GPUVAddr src_addr, const std::size_t size);
private:
template <bool is_big_pages, typename FuncMapped, typename FuncReserved, typename FuncUnmapped>
inline void MemoryOperation(GPUVAddr gpu_src_addr, std::size_t size, FuncMapped&& func_mapped,
FuncReserved&& func_reserved, FuncUnmapped&& func_unmapped) const;
template <bool is_safe>
void ReadBlockImpl(GPUVAddr gpu_src_addr, void* dest_buffer, std::size_t size,
VideoCommon::CacheType which) const;
template <bool is_safe>
void WriteBlockImpl(GPUVAddr gpu_dest_addr, const void* src_buffer, std::size_t size,
VideoCommon::CacheType which);
template <bool is_big_page>
[[nodiscard]] std::size_t PageEntryIndex(GPUVAddr gpu_addr) const {
if constexpr (is_big_page) {
return (gpu_addr >> big_page_bits) & big_page_table_mask;
} else {
return (gpu_addr >> page_bits) & page_table_mask;
}
}
inline bool IsBigPageContinuous(size_t big_page_index) const;
inline void SetBigPageContinuous(size_t big_page_index, bool value);
template <bool is_gpu_address>
void GetSubmappedRangeImpl(
GPUVAddr gpu_addr, std::size_t size,
boost::container::small_vector<
std::pair<std::conditional_t<is_gpu_address, GPUVAddr, DAddr>, std::size_t>, 32>&
result) const;
Core::System& system;
MaxwellDeviceMemoryManager& memory;
const u64 address_space_bits;
GPUVAddr split_address;
const u64 page_bits;
u64 address_space_size;
u64 page_size;
u64 page_mask;
u64 page_table_mask;
static constexpr u64 cpu_page_bits{12};
const u64 big_page_bits;
u64 big_page_size;
u64 big_page_mask;
u64 big_page_table_mask;
VideoCore::RasterizerInterface* rasterizer = nullptr;
enum class EntryType : u64 {
Free = 0,
Reserved = 1,
Mapped = 2,
};
std::vector<u64> entries;
std::vector<u64> big_entries;
template <EntryType entry_type>
GPUVAddr PageTableOp(GPUVAddr gpu_addr, [[maybe_unused]] DAddr dev_addr, size_t size,
PTEKind kind);
template <EntryType entry_type>
GPUVAddr BigPageTableOp(GPUVAddr gpu_addr, [[maybe_unused]] DAddr dev_addr, size_t size,
PTEKind kind);
template <bool is_big_page>
inline EntryType GetEntry(size_t position) const;
template <bool is_big_page>
inline void SetEntry(size_t position, EntryType entry);
Common::MultiLevelPageTable<u32> page_table;
Common::RangeMap<GPUVAddr, PTEKind> kind_map;
Common::VirtualBuffer<u32> big_page_table_dev;
std::vector<u64> big_page_continuous;
boost::container::small_vector<std::pair<DAddr, std::size_t>, 32> page_stash{};
boost::container::small_vector<std::pair<DAddr, std::size_t>, 32> page_stash2{};
mutable std::mutex guard;
static constexpr size_t continuous_bits = 64;
const size_t unique_identifier;
std::unique_ptr<VideoCommon::InvalidationAccumulator> accumulator;
static std::atomic<size_t> unique_identifier_generator;
Common::ScratchBuffer<u8> tmp_buffer;
};
} // namespace Tegra
|