memory.cpp 27 KB

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  1. // Copyright 2015 Citra Emulator Project
  2. // Licensed under GPLv2 or any later version
  3. // Refer to the license.txt file included.
  4. #include <algorithm>
  5. #include <cstring>
  6. #include "common/assert.h"
  7. #include "common/atomic_ops.h"
  8. #include "common/common_types.h"
  9. #include "common/logging/log.h"
  10. #include "common/page_table.h"
  11. #include "common/settings.h"
  12. #include "common/swap.h"
  13. #include "core/core.h"
  14. #include "core/device_memory.h"
  15. #include "core/hle/kernel/k_page_table.h"
  16. #include "core/hle/kernel/k_process.h"
  17. #include "core/memory.h"
  18. #include "video_core/gpu.h"
  19. namespace Core::Memory {
  20. // Implementation class used to keep the specifics of the memory subsystem hidden
  21. // from outside classes. This also allows modification to the internals of the memory
  22. // subsystem without needing to rebuild all files that make use of the memory interface.
  23. struct Memory::Impl {
  24. explicit Impl(Core::System& system_) : system{system_} {}
  25. void SetCurrentPageTable(Kernel::KProcess& process, u32 core_id) {
  26. current_page_table = &process.PageTable().PageTableImpl();
  27. current_page_table->fastmem_arena = system.DeviceMemory().buffer.VirtualBasePointer();
  28. const std::size_t address_space_width = process.PageTable().GetAddressSpaceWidth();
  29. system.ArmInterface(core_id).PageTableChanged(*current_page_table, address_space_width);
  30. }
  31. void MapMemoryRegion(Common::PageTable& page_table, VAddr base, u64 size, PAddr target) {
  32. ASSERT_MSG((size & PAGE_MASK) == 0, "non-page aligned size: {:016X}", size);
  33. ASSERT_MSG((base & PAGE_MASK) == 0, "non-page aligned base: {:016X}", base);
  34. ASSERT_MSG(target >= DramMemoryMap::Base && target < DramMemoryMap::End,
  35. "Out of bounds target: {:016X}", target);
  36. MapPages(page_table, base / PAGE_SIZE, size / PAGE_SIZE, target, Common::PageType::Memory);
  37. if (Settings::IsFastmemEnabled()) {
  38. system.DeviceMemory().buffer.Map(base, target - DramMemoryMap::Base, size);
  39. }
  40. }
  41. void UnmapRegion(Common::PageTable& page_table, VAddr base, u64 size) {
  42. ASSERT_MSG((size & PAGE_MASK) == 0, "non-page aligned size: {:016X}", size);
  43. ASSERT_MSG((base & PAGE_MASK) == 0, "non-page aligned base: {:016X}", base);
  44. MapPages(page_table, base / PAGE_SIZE, size / PAGE_SIZE, 0, Common::PageType::Unmapped);
  45. if (Settings::IsFastmemEnabled()) {
  46. system.DeviceMemory().buffer.Unmap(base, size);
  47. }
  48. }
  49. [[nodiscard]] u8* GetPointerFromRasterizerCachedMemory(VAddr vaddr) const {
  50. const PAddr paddr{current_page_table->backing_addr[vaddr >> PAGE_BITS]};
  51. if (!paddr) {
  52. return {};
  53. }
  54. return system.DeviceMemory().GetPointer(paddr) + vaddr;
  55. }
  56. u8 Read8(const VAddr addr) {
  57. return Read<u8>(addr);
  58. }
  59. u16 Read16(const VAddr addr) {
  60. if ((addr & 1) == 0) {
  61. return Read<u16_le>(addr);
  62. } else {
  63. const u32 a{Read<u8>(addr)};
  64. const u32 b{Read<u8>(addr + sizeof(u8))};
  65. return static_cast<u16>((b << 8) | a);
  66. }
  67. }
  68. u32 Read32(const VAddr addr) {
  69. if ((addr & 3) == 0) {
  70. return Read<u32_le>(addr);
  71. } else {
  72. const u32 a{Read16(addr)};
  73. const u32 b{Read16(addr + sizeof(u16))};
  74. return (b << 16) | a;
  75. }
  76. }
  77. u64 Read64(const VAddr addr) {
  78. if ((addr & 7) == 0) {
  79. return Read<u64_le>(addr);
  80. } else {
  81. const u32 a{Read32(addr)};
  82. const u32 b{Read32(addr + sizeof(u32))};
  83. return (static_cast<u64>(b) << 32) | a;
  84. }
  85. }
  86. void Write8(const VAddr addr, const u8 data) {
  87. Write<u8>(addr, data);
  88. }
  89. void Write16(const VAddr addr, const u16 data) {
  90. if ((addr & 1) == 0) {
  91. Write<u16_le>(addr, data);
  92. } else {
  93. Write<u8>(addr, static_cast<u8>(data));
  94. Write<u8>(addr + sizeof(u8), static_cast<u8>(data >> 8));
  95. }
  96. }
  97. void Write32(const VAddr addr, const u32 data) {
  98. if ((addr & 3) == 0) {
  99. Write<u32_le>(addr, data);
  100. } else {
  101. Write16(addr, static_cast<u16>(data));
  102. Write16(addr + sizeof(u16), static_cast<u16>(data >> 16));
  103. }
  104. }
  105. void Write64(const VAddr addr, const u64 data) {
  106. if ((addr & 7) == 0) {
  107. Write<u64_le>(addr, data);
  108. } else {
  109. Write32(addr, static_cast<u32>(data));
  110. Write32(addr + sizeof(u32), static_cast<u32>(data >> 32));
  111. }
  112. }
  113. bool WriteExclusive8(const VAddr addr, const u8 data, const u8 expected) {
  114. return WriteExclusive<u8>(addr, data, expected);
  115. }
  116. bool WriteExclusive16(const VAddr addr, const u16 data, const u16 expected) {
  117. return WriteExclusive<u16_le>(addr, data, expected);
  118. }
  119. bool WriteExclusive32(const VAddr addr, const u32 data, const u32 expected) {
  120. return WriteExclusive<u32_le>(addr, data, expected);
  121. }
  122. bool WriteExclusive64(const VAddr addr, const u64 data, const u64 expected) {
  123. return WriteExclusive<u64_le>(addr, data, expected);
  124. }
  125. std::string ReadCString(VAddr vaddr, std::size_t max_length) {
  126. std::string string;
  127. string.reserve(max_length);
  128. for (std::size_t i = 0; i < max_length; ++i) {
  129. const char c = Read<s8>(vaddr);
  130. if (c == '\0') {
  131. break;
  132. }
  133. string.push_back(c);
  134. ++vaddr;
  135. }
  136. string.shrink_to_fit();
  137. return string;
  138. }
  139. void WalkBlock(const Kernel::KProcess& process, const VAddr addr, const std::size_t size,
  140. auto on_unmapped, auto on_memory, auto on_rasterizer, auto increment) {
  141. const auto& page_table = process.PageTable().PageTableImpl();
  142. std::size_t remaining_size = size;
  143. std::size_t page_index = addr >> PAGE_BITS;
  144. std::size_t page_offset = addr & PAGE_MASK;
  145. while (remaining_size) {
  146. const std::size_t copy_amount =
  147. std::min(static_cast<std::size_t>(PAGE_SIZE) - page_offset, remaining_size);
  148. const auto current_vaddr = static_cast<VAddr>((page_index << PAGE_BITS) + page_offset);
  149. const auto [pointer, type] = page_table.pointers[page_index].PointerType();
  150. switch (type) {
  151. case Common::PageType::Unmapped: {
  152. on_unmapped(copy_amount, current_vaddr);
  153. break;
  154. }
  155. case Common::PageType::Memory: {
  156. DEBUG_ASSERT(pointer);
  157. u8* mem_ptr = pointer + page_offset + (page_index << PAGE_BITS);
  158. on_memory(copy_amount, mem_ptr);
  159. break;
  160. }
  161. case Common::PageType::RasterizerCachedMemory: {
  162. u8* const host_ptr{GetPointerFromRasterizerCachedMemory(current_vaddr)};
  163. on_rasterizer(current_vaddr, copy_amount, host_ptr);
  164. break;
  165. }
  166. default:
  167. UNREACHABLE();
  168. }
  169. page_index++;
  170. page_offset = 0;
  171. increment(copy_amount);
  172. remaining_size -= copy_amount;
  173. }
  174. }
  175. template <bool UNSAFE>
  176. void ReadBlockImpl(const Kernel::KProcess& process, const VAddr src_addr, void* dest_buffer,
  177. const std::size_t size) {
  178. WalkBlock(
  179. process, src_addr, size,
  180. [src_addr, size, &dest_buffer](const std::size_t copy_amount,
  181. const VAddr current_vaddr) {
  182. LOG_ERROR(HW_Memory,
  183. "Unmapped ReadBlock @ 0x{:016X} (start address = 0x{:016X}, size = {})",
  184. current_vaddr, src_addr, size);
  185. std::memset(dest_buffer, 0, copy_amount);
  186. },
  187. [&dest_buffer](const std::size_t copy_amount, const u8* const src_ptr) {
  188. std::memcpy(dest_buffer, src_ptr, copy_amount);
  189. },
  190. [&system = system, &dest_buffer](const VAddr current_vaddr,
  191. const std::size_t copy_amount,
  192. const u8* const host_ptr) {
  193. if constexpr (!UNSAFE) {
  194. system.GPU().FlushRegion(current_vaddr, copy_amount);
  195. }
  196. std::memcpy(dest_buffer, host_ptr, copy_amount);
  197. },
  198. [&dest_buffer](const std::size_t copy_amount) {
  199. dest_buffer = static_cast<u8*>(dest_buffer) + copy_amount;
  200. });
  201. }
  202. void ReadBlock(const VAddr src_addr, void* dest_buffer, const std::size_t size) {
  203. ReadBlockImpl<false>(*system.CurrentProcess(), src_addr, dest_buffer, size);
  204. }
  205. void ReadBlockUnsafe(const VAddr src_addr, void* dest_buffer, const std::size_t size) {
  206. ReadBlockImpl<true>(*system.CurrentProcess(), src_addr, dest_buffer, size);
  207. }
  208. template <bool UNSAFE>
  209. void WriteBlockImpl(const Kernel::KProcess& process, const VAddr dest_addr,
  210. const void* src_buffer, const std::size_t size) {
  211. WalkBlock(
  212. process, dest_addr, size,
  213. [dest_addr, size](const std::size_t copy_amount, const VAddr current_vaddr) {
  214. LOG_ERROR(HW_Memory,
  215. "Unmapped WriteBlock @ 0x{:016X} (start address = 0x{:016X}, size = {})",
  216. current_vaddr, dest_addr, size);
  217. },
  218. [&src_buffer](const std::size_t copy_amount, u8* const dest_ptr) {
  219. std::memcpy(dest_ptr, src_buffer, copy_amount);
  220. },
  221. [&system = system, &src_buffer](const VAddr current_vaddr,
  222. const std::size_t copy_amount, u8* const host_ptr) {
  223. if constexpr (!UNSAFE) {
  224. system.GPU().InvalidateRegion(current_vaddr, copy_amount);
  225. }
  226. std::memcpy(host_ptr, src_buffer, copy_amount);
  227. },
  228. [&src_buffer](const std::size_t copy_amount) {
  229. src_buffer = static_cast<const u8*>(src_buffer) + copy_amount;
  230. });
  231. }
  232. void WriteBlock(const VAddr dest_addr, const void* src_buffer, const std::size_t size) {
  233. WriteBlockImpl<false>(*system.CurrentProcess(), dest_addr, src_buffer, size);
  234. }
  235. void WriteBlockUnsafe(const VAddr dest_addr, const void* src_buffer, const std::size_t size) {
  236. WriteBlockImpl<true>(*system.CurrentProcess(), dest_addr, src_buffer, size);
  237. }
  238. void ZeroBlock(const Kernel::KProcess& process, const VAddr dest_addr, const std::size_t size) {
  239. WalkBlock(
  240. process, dest_addr, size,
  241. [dest_addr, size](const std::size_t copy_amount, const VAddr current_vaddr) {
  242. LOG_ERROR(HW_Memory,
  243. "Unmapped ZeroBlock @ 0x{:016X} (start address = 0x{:016X}, size = {})",
  244. current_vaddr, dest_addr, size);
  245. },
  246. [](const std::size_t copy_amount, u8* const dest_ptr) {
  247. std::memset(dest_ptr, 0, copy_amount);
  248. },
  249. [&system = system](const VAddr current_vaddr, const std::size_t copy_amount,
  250. u8* const host_ptr) {
  251. system.GPU().InvalidateRegion(current_vaddr, copy_amount);
  252. std::memset(host_ptr, 0, copy_amount);
  253. },
  254. [](const std::size_t copy_amount) {});
  255. }
  256. void CopyBlock(const Kernel::KProcess& process, VAddr dest_addr, VAddr src_addr,
  257. const std::size_t size) {
  258. WalkBlock(
  259. process, dest_addr, size,
  260. [this, &process, &dest_addr, &src_addr, size](const std::size_t copy_amount,
  261. const VAddr current_vaddr) {
  262. LOG_ERROR(HW_Memory,
  263. "Unmapped CopyBlock @ 0x{:016X} (start address = 0x{:016X}, size = {})",
  264. current_vaddr, src_addr, size);
  265. ZeroBlock(process, dest_addr, copy_amount);
  266. },
  267. [this, &process, &dest_addr](const std::size_t copy_amount, const u8* const src_ptr) {
  268. WriteBlockImpl<false>(process, dest_addr, src_ptr, copy_amount);
  269. },
  270. [this, &system = system, &process, &dest_addr](
  271. const VAddr current_vaddr, const std::size_t copy_amount, u8* const host_ptr) {
  272. system.GPU().FlushRegion(current_vaddr, copy_amount);
  273. WriteBlockImpl<false>(process, dest_addr, host_ptr, copy_amount);
  274. },
  275. [&dest_addr, &src_addr](const std::size_t copy_amount) {
  276. dest_addr += static_cast<VAddr>(copy_amount);
  277. src_addr += static_cast<VAddr>(copy_amount);
  278. });
  279. }
  280. void RasterizerMarkRegionCached(VAddr vaddr, u64 size, bool cached) {
  281. if (vaddr == 0) {
  282. return;
  283. }
  284. if (Settings::IsFastmemEnabled()) {
  285. const bool is_read_enable = Settings::IsGPULevelHigh() || !cached;
  286. system.DeviceMemory().buffer.Protect(vaddr, size, is_read_enable, !cached);
  287. }
  288. // Iterate over a contiguous CPU address space, which corresponds to the specified GPU
  289. // address space, marking the region as un/cached. The region is marked un/cached at a
  290. // granularity of CPU pages, hence why we iterate on a CPU page basis (note: GPU page size
  291. // is different). This assumes the specified GPU address region is contiguous as well.
  292. const u64 num_pages = ((vaddr + size - 1) >> PAGE_BITS) - (vaddr >> PAGE_BITS) + 1;
  293. for (u64 i = 0; i < num_pages; ++i, vaddr += PAGE_SIZE) {
  294. const Common::PageType page_type{
  295. current_page_table->pointers[vaddr >> PAGE_BITS].Type()};
  296. if (cached) {
  297. // Switch page type to cached if now cached
  298. switch (page_type) {
  299. case Common::PageType::Unmapped:
  300. // It is not necessary for a process to have this region mapped into its address
  301. // space, for example, a system module need not have a VRAM mapping.
  302. break;
  303. case Common::PageType::Memory:
  304. current_page_table->pointers[vaddr >> PAGE_BITS].Store(
  305. nullptr, Common::PageType::RasterizerCachedMemory);
  306. break;
  307. case Common::PageType::RasterizerCachedMemory:
  308. // There can be more than one GPU region mapped per CPU region, so it's common
  309. // that this area is already marked as cached.
  310. break;
  311. default:
  312. UNREACHABLE();
  313. }
  314. } else {
  315. // Switch page type to uncached if now uncached
  316. switch (page_type) {
  317. case Common::PageType::Unmapped: // NOLINT(bugprone-branch-clone)
  318. // It is not necessary for a process to have this region mapped into its address
  319. // space, for example, a system module need not have a VRAM mapping.
  320. break;
  321. case Common::PageType::Memory:
  322. // There can be more than one GPU region mapped per CPU region, so it's common
  323. // that this area is already unmarked as cached.
  324. break;
  325. case Common::PageType::RasterizerCachedMemory: {
  326. u8* const pointer{GetPointerFromRasterizerCachedMemory(vaddr & ~PAGE_MASK)};
  327. if (pointer == nullptr) {
  328. // It's possible that this function has been called while updating the
  329. // pagetable after unmapping a VMA. In that case the underlying VMA will no
  330. // longer exist, and we should just leave the pagetable entry blank.
  331. current_page_table->pointers[vaddr >> PAGE_BITS].Store(
  332. nullptr, Common::PageType::Unmapped);
  333. } else {
  334. current_page_table->pointers[vaddr >> PAGE_BITS].Store(
  335. pointer - (vaddr & ~PAGE_MASK), Common::PageType::Memory);
  336. }
  337. break;
  338. }
  339. default:
  340. UNREACHABLE();
  341. }
  342. }
  343. }
  344. }
  345. /**
  346. * Maps a region of pages as a specific type.
  347. *
  348. * @param page_table The page table to use to perform the mapping.
  349. * @param base The base address to begin mapping at.
  350. * @param size The total size of the range in bytes.
  351. * @param target The target address to begin mapping from.
  352. * @param type The page type to map the memory as.
  353. */
  354. void MapPages(Common::PageTable& page_table, VAddr base, u64 size, PAddr target,
  355. Common::PageType type) {
  356. LOG_DEBUG(HW_Memory, "Mapping {:016X} onto {:016X}-{:016X}", target, base * PAGE_SIZE,
  357. (base + size) * PAGE_SIZE);
  358. // During boot, current_page_table might not be set yet, in which case we need not flush
  359. if (system.IsPoweredOn()) {
  360. auto& gpu = system.GPU();
  361. for (u64 i = 0; i < size; i++) {
  362. const auto page = base + i;
  363. if (page_table.pointers[page].Type() == Common::PageType::RasterizerCachedMemory) {
  364. gpu.FlushAndInvalidateRegion(page << PAGE_BITS, PAGE_SIZE);
  365. }
  366. }
  367. }
  368. const VAddr end = base + size;
  369. ASSERT_MSG(end <= page_table.pointers.size(), "out of range mapping at {:016X}",
  370. base + page_table.pointers.size());
  371. if (!target) {
  372. ASSERT_MSG(type != Common::PageType::Memory,
  373. "Mapping memory page without a pointer @ {:016x}", base * PAGE_SIZE);
  374. while (base != end) {
  375. page_table.pointers[base].Store(nullptr, type);
  376. page_table.backing_addr[base] = 0;
  377. base += 1;
  378. }
  379. } else {
  380. while (base != end) {
  381. page_table.pointers[base].Store(
  382. system.DeviceMemory().GetPointer(target) - (base << PAGE_BITS), type);
  383. page_table.backing_addr[base] = target - (base << PAGE_BITS);
  384. ASSERT_MSG(page_table.pointers[base].Pointer(),
  385. "memory mapping base yield a nullptr within the table");
  386. base += 1;
  387. target += PAGE_SIZE;
  388. }
  389. }
  390. }
  391. [[nodiscard]] u8* GetPointerImpl(VAddr vaddr, auto on_unmapped, auto on_rasterizer) const {
  392. // AARCH64 masks the upper 16 bit of all memory accesses
  393. vaddr &= 0xffffffffffffLL;
  394. if (vaddr >= 1uLL << current_page_table->GetAddressSpaceBits()) {
  395. on_unmapped();
  396. return nullptr;
  397. }
  398. // Avoid adding any extra logic to this fast-path block
  399. const uintptr_t raw_pointer = current_page_table->pointers[vaddr >> PAGE_BITS].Raw();
  400. if (u8* const pointer = Common::PageTable::PageInfo::ExtractPointer(raw_pointer)) {
  401. return &pointer[vaddr];
  402. }
  403. switch (Common::PageTable::PageInfo::ExtractType(raw_pointer)) {
  404. case Common::PageType::Unmapped:
  405. on_unmapped();
  406. return nullptr;
  407. case Common::PageType::Memory:
  408. ASSERT_MSG(false, "Mapped memory page without a pointer @ 0x{:016X}", vaddr);
  409. return nullptr;
  410. case Common::PageType::RasterizerCachedMemory: {
  411. u8* const host_ptr{GetPointerFromRasterizerCachedMemory(vaddr)};
  412. on_rasterizer();
  413. return host_ptr;
  414. }
  415. default:
  416. UNREACHABLE();
  417. }
  418. return nullptr;
  419. }
  420. [[nodiscard]] u8* GetPointer(const VAddr vaddr) const {
  421. return GetPointerImpl(
  422. vaddr, [vaddr]() { LOG_ERROR(HW_Memory, "Unmapped GetPointer @ 0x{:016X}", vaddr); },
  423. []() {});
  424. }
  425. /**
  426. * Reads a particular data type out of memory at the given virtual address.
  427. *
  428. * @param vaddr The virtual address to read the data type from.
  429. *
  430. * @tparam T The data type to read out of memory. This type *must* be
  431. * trivially copyable, otherwise the behavior of this function
  432. * is undefined.
  433. *
  434. * @returns The instance of T read from the specified virtual address.
  435. */
  436. template <typename T>
  437. T Read(VAddr vaddr) {
  438. T result = 0;
  439. const u8* const ptr = GetPointerImpl(
  440. vaddr,
  441. [vaddr]() {
  442. LOG_ERROR(HW_Memory, "Unmapped Read{} @ 0x{:016X}", sizeof(T) * 8, vaddr);
  443. },
  444. [&system = system, vaddr]() { system.GPU().FlushRegion(vaddr, sizeof(T)); });
  445. if (ptr) {
  446. std::memcpy(&result, ptr, sizeof(T));
  447. }
  448. return result;
  449. }
  450. /**
  451. * Writes a particular data type to memory at the given virtual address.
  452. *
  453. * @param vaddr The virtual address to write the data type to.
  454. *
  455. * @tparam T The data type to write to memory. This type *must* be
  456. * trivially copyable, otherwise the behavior of this function
  457. * is undefined.
  458. */
  459. template <typename T>
  460. void Write(VAddr vaddr, const T data) {
  461. u8* const ptr = GetPointerImpl(
  462. vaddr,
  463. [vaddr, data]() {
  464. LOG_ERROR(HW_Memory, "Unmapped Write{} @ 0x{:016X} = 0x{:016X}", sizeof(T) * 8,
  465. vaddr, static_cast<u64>(data));
  466. },
  467. [&system = system, vaddr]() { system.GPU().InvalidateRegion(vaddr, sizeof(T)); });
  468. if (ptr) {
  469. std::memcpy(ptr, &data, sizeof(T));
  470. }
  471. }
  472. template <typename T>
  473. bool WriteExclusive(VAddr vaddr, const T data, const T expected) {
  474. u8* const ptr = GetPointerImpl(
  475. vaddr,
  476. [vaddr, data]() {
  477. LOG_ERROR(HW_Memory, "Unmapped WriteExclusive{} @ 0x{:016X} = 0x{:016X}",
  478. sizeof(T) * 8, vaddr, static_cast<u64>(data));
  479. },
  480. [&system = system, vaddr]() { system.GPU().InvalidateRegion(vaddr, sizeof(T)); });
  481. if (ptr) {
  482. const auto volatile_pointer = reinterpret_cast<volatile T*>(ptr);
  483. return Common::AtomicCompareAndSwap(volatile_pointer, data, expected);
  484. }
  485. return true;
  486. }
  487. bool WriteExclusive128(VAddr vaddr, const u128 data, const u128 expected) {
  488. u8* const ptr = GetPointerImpl(
  489. vaddr,
  490. [vaddr, data]() {
  491. LOG_ERROR(HW_Memory, "Unmapped WriteExclusive128 @ 0x{:016X} = 0x{:016X}{:016X}",
  492. vaddr, static_cast<u64>(data[1]), static_cast<u64>(data[0]));
  493. },
  494. [&system = system, vaddr]() { system.GPU().InvalidateRegion(vaddr, sizeof(u128)); });
  495. if (ptr) {
  496. const auto volatile_pointer = reinterpret_cast<volatile u64*>(ptr);
  497. return Common::AtomicCompareAndSwap(volatile_pointer, data, expected);
  498. }
  499. return true;
  500. }
  501. Common::PageTable* current_page_table = nullptr;
  502. Core::System& system;
  503. };
  504. Memory::Memory(Core::System& system_) : system{system_} {
  505. Reset();
  506. }
  507. Memory::~Memory() = default;
  508. void Memory::Reset() {
  509. impl = std::make_unique<Impl>(system);
  510. }
  511. void Memory::SetCurrentPageTable(Kernel::KProcess& process, u32 core_id) {
  512. impl->SetCurrentPageTable(process, core_id);
  513. }
  514. void Memory::MapMemoryRegion(Common::PageTable& page_table, VAddr base, u64 size, PAddr target) {
  515. impl->MapMemoryRegion(page_table, base, size, target);
  516. }
  517. void Memory::UnmapRegion(Common::PageTable& page_table, VAddr base, u64 size) {
  518. impl->UnmapRegion(page_table, base, size);
  519. }
  520. bool Memory::IsValidVirtualAddress(const VAddr vaddr) const {
  521. const Kernel::KProcess& process = *system.CurrentProcess();
  522. const auto& page_table = process.PageTable().PageTableImpl();
  523. const size_t page = vaddr >> PAGE_BITS;
  524. if (page >= page_table.pointers.size()) {
  525. return false;
  526. }
  527. const auto [pointer, type] = page_table.pointers[page].PointerType();
  528. return pointer != nullptr || type == Common::PageType::RasterizerCachedMemory;
  529. }
  530. u8* Memory::GetPointer(VAddr vaddr) {
  531. return impl->GetPointer(vaddr);
  532. }
  533. const u8* Memory::GetPointer(VAddr vaddr) const {
  534. return impl->GetPointer(vaddr);
  535. }
  536. u8 Memory::Read8(const VAddr addr) {
  537. return impl->Read8(addr);
  538. }
  539. u16 Memory::Read16(const VAddr addr) {
  540. return impl->Read16(addr);
  541. }
  542. u32 Memory::Read32(const VAddr addr) {
  543. return impl->Read32(addr);
  544. }
  545. u64 Memory::Read64(const VAddr addr) {
  546. return impl->Read64(addr);
  547. }
  548. void Memory::Write8(VAddr addr, u8 data) {
  549. impl->Write8(addr, data);
  550. }
  551. void Memory::Write16(VAddr addr, u16 data) {
  552. impl->Write16(addr, data);
  553. }
  554. void Memory::Write32(VAddr addr, u32 data) {
  555. impl->Write32(addr, data);
  556. }
  557. void Memory::Write64(VAddr addr, u64 data) {
  558. impl->Write64(addr, data);
  559. }
  560. bool Memory::WriteExclusive8(VAddr addr, u8 data, u8 expected) {
  561. return impl->WriteExclusive8(addr, data, expected);
  562. }
  563. bool Memory::WriteExclusive16(VAddr addr, u16 data, u16 expected) {
  564. return impl->WriteExclusive16(addr, data, expected);
  565. }
  566. bool Memory::WriteExclusive32(VAddr addr, u32 data, u32 expected) {
  567. return impl->WriteExclusive32(addr, data, expected);
  568. }
  569. bool Memory::WriteExclusive64(VAddr addr, u64 data, u64 expected) {
  570. return impl->WriteExclusive64(addr, data, expected);
  571. }
  572. bool Memory::WriteExclusive128(VAddr addr, u128 data, u128 expected) {
  573. return impl->WriteExclusive128(addr, data, expected);
  574. }
  575. std::string Memory::ReadCString(VAddr vaddr, std::size_t max_length) {
  576. return impl->ReadCString(vaddr, max_length);
  577. }
  578. void Memory::ReadBlock(const Kernel::KProcess& process, const VAddr src_addr, void* dest_buffer,
  579. const std::size_t size) {
  580. impl->ReadBlockImpl<false>(process, src_addr, dest_buffer, size);
  581. }
  582. void Memory::ReadBlock(const VAddr src_addr, void* dest_buffer, const std::size_t size) {
  583. impl->ReadBlock(src_addr, dest_buffer, size);
  584. }
  585. void Memory::ReadBlockUnsafe(const VAddr src_addr, void* dest_buffer, const std::size_t size) {
  586. impl->ReadBlockUnsafe(src_addr, dest_buffer, size);
  587. }
  588. void Memory::WriteBlock(const Kernel::KProcess& process, VAddr dest_addr, const void* src_buffer,
  589. std::size_t size) {
  590. impl->WriteBlockImpl<false>(process, dest_addr, src_buffer, size);
  591. }
  592. void Memory::WriteBlock(const VAddr dest_addr, const void* src_buffer, const std::size_t size) {
  593. impl->WriteBlock(dest_addr, src_buffer, size);
  594. }
  595. void Memory::WriteBlockUnsafe(const VAddr dest_addr, const void* src_buffer,
  596. const std::size_t size) {
  597. impl->WriteBlockUnsafe(dest_addr, src_buffer, size);
  598. }
  599. void Memory::CopyBlock(const Kernel::KProcess& process, VAddr dest_addr, VAddr src_addr,
  600. const std::size_t size) {
  601. impl->CopyBlock(process, dest_addr, src_addr, size);
  602. }
  603. void Memory::RasterizerMarkRegionCached(VAddr vaddr, u64 size, bool cached) {
  604. impl->RasterizerMarkRegionCached(vaddr, size, cached);
  605. }
  606. } // namespace Core::Memory