diff options
Diffstat (limited to 'src/core/memory.h')
| -rw-r--r-- | src/core/memory.h | 104 |
1 files changed, 4 insertions, 100 deletions
diff --git a/src/core/memory.h b/src/core/memory.h index c91eeced9..9122cbab9 100644 --- a/src/core/memory.h +++ b/src/core/memory.h @@ -1,4 +1,4 @@ -// Copyright 2014 Citra Emulator Project +// Copyright 2021 Citra Emulator Project // Licensed under GPLv2 or any later version // Refer to the license.txt file included. @@ -39,11 +39,6 @@ enum : VAddr { /// Application stack DEFAULT_STACK_SIZE = 0x100000, - - /// Kernel Virtual Address Range - KERNEL_REGION_VADDR = 0xFFFFFF8000000000, - KERNEL_REGION_SIZE = 0x7FFFE00000, - KERNEL_REGION_END = KERNEL_REGION_VADDR + KERNEL_REGION_SIZE, }; /// Central class that handles all memory operations and state. @@ -56,7 +51,7 @@ public: Memory& operator=(const Memory&) = delete; Memory(Memory&&) = default; - Memory& operator=(Memory&&) = default; + Memory& operator=(Memory&&) = delete; /** * Resets the state of the Memory system. @@ -92,24 +87,13 @@ public: /** * Checks whether or not the supplied address is a valid virtual - * address for the given process. - * - * @param process The emulated process to check the address against. - * @param vaddr The virtual address to check the validity of. - * - * @returns True if the given virtual address is valid, false otherwise. - */ - bool IsValidVirtualAddress(const Kernel::KProcess& process, VAddr vaddr) const; - - /** - * Checks whether or not the supplied address is a valid virtual * address for the current process. * * @param vaddr The virtual address to check the validity of. * * @returns True if the given virtual address is valid, false otherwise. */ - bool IsValidVirtualAddress(VAddr vaddr) const; + [[nodiscard]] bool IsValidVirtualAddress(VAddr vaddr) const; /** * Gets a pointer to the given address. @@ -134,7 +118,7 @@ public: * @returns The pointer to the given address, if the address is valid. * If the address is not valid, nullptr will be returned. */ - const u8* GetPointer(VAddr vaddr) const; + [[nodiscard]] const u8* GetPointer(VAddr vaddr) const; template <typename T> const T* GetPointer(VAddr vaddr) const { @@ -328,27 +312,6 @@ public: std::size_t size); /** - * Reads a contiguous block of bytes from a specified process' address space. - * This unsafe version does not trigger GPU flushing. - * - * @param process The process to read the data from. - * @param src_addr The virtual address to begin reading from. - * @param dest_buffer The buffer to place the read bytes into. - * @param size The amount of data to read, in bytes. - * - * @note If a size of 0 is specified, then this function reads nothing and - * no attempts to access memory are made at all. - * - * @pre dest_buffer must be at least size bytes in length, otherwise a - * buffer overrun will occur. - * - * @post The range [dest_buffer, size) contains the read bytes from the - * process' address space. - */ - void ReadBlockUnsafe(const Kernel::KProcess& process, VAddr src_addr, void* dest_buffer, - std::size_t size); - - /** * Reads a contiguous block of bytes from the current process' address space. * * @param src_addr The virtual address to begin reading from. @@ -409,26 +372,6 @@ public: std::size_t size); /** - * Writes a range of bytes into a given process' address space at the specified - * virtual address. - * This unsafe version does not invalidate GPU Memory. - * - * @param process The process to write data into the address space of. - * @param dest_addr The destination virtual address to begin writing the data at. - * @param src_buffer The data to write into the process' address space. - * @param size The size of the data to write, in bytes. - * - * @post The address range [dest_addr, size) in the process' address space - * contains the data that was within src_buffer. - * - * @post If an attempt is made to write into an unmapped region of memory, the writes - * will be ignored and an error will be logged. - * - */ - void WriteBlockUnsafe(const Kernel::KProcess& process, VAddr dest_addr, const void* src_buffer, - std::size_t size); - - /** * Writes a range of bytes into the current process' address space at the specified * virtual address. * @@ -468,29 +411,6 @@ public: void WriteBlockUnsafe(VAddr dest_addr, const void* src_buffer, std::size_t size); /** - * Fills the specified address range within a process' address space with zeroes. - * - * @param process The process that will have a portion of its memory zeroed out. - * @param dest_addr The starting virtual address of the range to zero out. - * @param size The size of the address range to zero out, in bytes. - * - * @post The range [dest_addr, size) within the process' address space is - * filled with zeroes. - */ - void ZeroBlock(const Kernel::KProcess& process, VAddr dest_addr, std::size_t size); - - /** - * Fills the specified address range within the current process' address space with zeroes. - * - * @param dest_addr The starting virtual address of the range to zero out. - * @param size The size of the address range to zero out, in bytes. - * - * @post The range [dest_addr, size) within the current process' address space is - * filled with zeroes. - */ - void ZeroBlock(VAddr dest_addr, std::size_t size); - - /** * Copies data within a process' address space to another location within the * same address space. * @@ -506,19 +426,6 @@ public: std::size_t size); /** - * Copies data within the current process' address space to another location within the - * same address space. - * - * @param dest_addr The destination virtual address to begin copying the data into. - * @param src_addr The source virtual address to begin copying the data from. - * @param size The size of the data to copy, in bytes. - * - * @post The range [dest_addr, size) within the current process' address space - * contains the same data within the range [src_addr, size). - */ - void CopyBlock(VAddr dest_addr, VAddr src_addr, std::size_t size); - - /** * Marks each page within the specified address range as cached or uncached. * * @param vaddr The virtual address indicating the start of the address range. @@ -535,7 +442,4 @@ private: std::unique_ptr<Impl> impl; }; -/// Determines if the given VAddr is a kernel address -bool IsKernelVirtualAddress(VAddr vaddr); - } // namespace Core::Memory |