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-rw-r--r--src/core/memory.h102
1 files changed, 3 insertions, 99 deletions
diff --git a/src/core/memory.h b/src/core/memory.h
index c91eeced9..b5721b740 100644
--- a/src/core/memory.h
+++ b/src/core/memory.h
@@ -39,11 +39,6 @@ enum : VAddr {
39 39
40 /// Application stack 40 /// Application stack
41 DEFAULT_STACK_SIZE = 0x100000, 41 DEFAULT_STACK_SIZE = 0x100000,
42
43 /// Kernel Virtual Address Range
44 KERNEL_REGION_VADDR = 0xFFFFFF8000000000,
45 KERNEL_REGION_SIZE = 0x7FFFE00000,
46 KERNEL_REGION_END = KERNEL_REGION_VADDR + KERNEL_REGION_SIZE,
47}; 42};
48 43
49/// Central class that handles all memory operations and state. 44/// Central class that handles all memory operations and state.
@@ -56,7 +51,7 @@ public:
56 Memory& operator=(const Memory&) = delete; 51 Memory& operator=(const Memory&) = delete;
57 52
58 Memory(Memory&&) = default; 53 Memory(Memory&&) = default;
59 Memory& operator=(Memory&&) = default; 54 Memory& operator=(Memory&&) = delete;
60 55
61 /** 56 /**
62 * Resets the state of the Memory system. 57 * Resets the state of the Memory system.
@@ -92,24 +87,13 @@ public:
92 87
93 /** 88 /**
94 * Checks whether or not the supplied address is a valid virtual 89 * Checks whether or not the supplied address is a valid virtual
95 * address for the given process.
96 *
97 * @param process The emulated process to check the address against.
98 * @param vaddr The virtual address to check the validity of.
99 *
100 * @returns True if the given virtual address is valid, false otherwise.
101 */
102 bool IsValidVirtualAddress(const Kernel::KProcess& process, VAddr vaddr) const;
103
104 /**
105 * Checks whether or not the supplied address is a valid virtual
106 * address for the current process. 90 * address for the current process.
107 * 91 *
108 * @param vaddr The virtual address to check the validity of. 92 * @param vaddr The virtual address to check the validity of.
109 * 93 *
110 * @returns True if the given virtual address is valid, false otherwise. 94 * @returns True if the given virtual address is valid, false otherwise.
111 */ 95 */
112 bool IsValidVirtualAddress(VAddr vaddr) const; 96 [[nodiscard]] bool IsValidVirtualAddress(VAddr vaddr) const;
113 97
114 /** 98 /**
115 * Gets a pointer to the given address. 99 * Gets a pointer to the given address.
@@ -134,7 +118,7 @@ public:
134 * @returns The pointer to the given address, if the address is valid. 118 * @returns The pointer to the given address, if the address is valid.
135 * If the address is not valid, nullptr will be returned. 119 * If the address is not valid, nullptr will be returned.
136 */ 120 */
137 const u8* GetPointer(VAddr vaddr) const; 121 [[nodiscard]] const u8* GetPointer(VAddr vaddr) const;
138 122
139 template <typename T> 123 template <typename T>
140 const T* GetPointer(VAddr vaddr) const { 124 const T* GetPointer(VAddr vaddr) const {
@@ -328,27 +312,6 @@ public:
328 std::size_t size); 312 std::size_t size);
329 313
330 /** 314 /**
331 * Reads a contiguous block of bytes from a specified process' address space.
332 * This unsafe version does not trigger GPU flushing.
333 *
334 * @param process The process to read the data from.
335 * @param src_addr The virtual address to begin reading from.
336 * @param dest_buffer The buffer to place the read bytes into.
337 * @param size The amount of data to read, in bytes.
338 *
339 * @note If a size of 0 is specified, then this function reads nothing and
340 * no attempts to access memory are made at all.
341 *
342 * @pre dest_buffer must be at least size bytes in length, otherwise a
343 * buffer overrun will occur.
344 *
345 * @post The range [dest_buffer, size) contains the read bytes from the
346 * process' address space.
347 */
348 void ReadBlockUnsafe(const Kernel::KProcess& process, VAddr src_addr, void* dest_buffer,
349 std::size_t size);
350
351 /**
352 * Reads a contiguous block of bytes from the current process' address space. 315 * Reads a contiguous block of bytes from the current process' address space.
353 * 316 *
354 * @param src_addr The virtual address to begin reading from. 317 * @param src_addr The virtual address to begin reading from.
@@ -409,26 +372,6 @@ public:
409 std::size_t size); 372 std::size_t size);
410 373
411 /** 374 /**
412 * Writes a range of bytes into a given process' address space at the specified
413 * virtual address.
414 * This unsafe version does not invalidate GPU Memory.
415 *
416 * @param process The process to write data into the address space of.
417 * @param dest_addr The destination virtual address to begin writing the data at.
418 * @param src_buffer The data to write into the process' address space.
419 * @param size The size of the data to write, in bytes.
420 *
421 * @post The address range [dest_addr, size) in the process' address space
422 * contains the data that was within src_buffer.
423 *
424 * @post If an attempt is made to write into an unmapped region of memory, the writes
425 * will be ignored and an error will be logged.
426 *
427 */
428 void WriteBlockUnsafe(const Kernel::KProcess& process, VAddr dest_addr, const void* src_buffer,
429 std::size_t size);
430
431 /**
432 * Writes a range of bytes into the current process' address space at the specified 375 * Writes a range of bytes into the current process' address space at the specified
433 * virtual address. 376 * virtual address.
434 * 377 *
@@ -468,29 +411,6 @@ public:
468 void WriteBlockUnsafe(VAddr dest_addr, const void* src_buffer, std::size_t size); 411 void WriteBlockUnsafe(VAddr dest_addr, const void* src_buffer, std::size_t size);
469 412
470 /** 413 /**
471 * Fills the specified address range within a process' address space with zeroes.
472 *
473 * @param process The process that will have a portion of its memory zeroed out.
474 * @param dest_addr The starting virtual address of the range to zero out.
475 * @param size The size of the address range to zero out, in bytes.
476 *
477 * @post The range [dest_addr, size) within the process' address space is
478 * filled with zeroes.
479 */
480 void ZeroBlock(const Kernel::KProcess& process, VAddr dest_addr, std::size_t size);
481
482 /**
483 * Fills the specified address range within the current process' address space with zeroes.
484 *
485 * @param dest_addr The starting virtual address of the range to zero out.
486 * @param size The size of the address range to zero out, in bytes.
487 *
488 * @post The range [dest_addr, size) within the current process' address space is
489 * filled with zeroes.
490 */
491 void ZeroBlock(VAddr dest_addr, std::size_t size);
492
493 /**
494 * Copies data within a process' address space to another location within the 414 * Copies data within a process' address space to another location within the
495 * same address space. 415 * same address space.
496 * 416 *
@@ -506,19 +426,6 @@ public:
506 std::size_t size); 426 std::size_t size);
507 427
508 /** 428 /**
509 * Copies data within the current process' address space to another location within the
510 * same address space.
511 *
512 * @param dest_addr The destination virtual address to begin copying the data into.
513 * @param src_addr The source virtual address to begin copying the data from.
514 * @param size The size of the data to copy, in bytes.
515 *
516 * @post The range [dest_addr, size) within the current process' address space
517 * contains the same data within the range [src_addr, size).
518 */
519 void CopyBlock(VAddr dest_addr, VAddr src_addr, std::size_t size);
520
521 /**
522 * Marks each page within the specified address range as cached or uncached. 429 * Marks each page within the specified address range as cached or uncached.
523 * 430 *
524 * @param vaddr The virtual address indicating the start of the address range. 431 * @param vaddr The virtual address indicating the start of the address range.
@@ -535,7 +442,4 @@ private:
535 std::unique_ptr<Impl> impl; 442 std::unique_ptr<Impl> impl;
536}; 443};
537 444
538/// Determines if the given VAddr is a kernel address
539bool IsKernelVirtualAddress(VAddr vaddr);
540
541} // namespace Core::Memory 445} // namespace Core::Memory