skyline/app/src/main/cpp/skyline/kernel/types/KPrivateMemory.h
◱ PixelyIon c005d7df74 Framebuffer and NativeActivity
What was added:
* Framebuffer
* NativeActivity
* NV Services
* IOCTL Handler
* NV Devices:
* * /dev/nvmap - 0xC0080101, 0xC0080103, 0xC0200104, 0xC0180105, 0xC00C0109, 0xC008010E
* * /dev/nvhost-as-gpu
* * /dev/nvhost-channel - 0x40044801, 0xC0104809, 0xC010480B, 0xC018480C, 0x4004480D, 0xC020481A, 0x40084714
* * /dev/nvhost-ctrl
* * /dev/nvhost-ctrl-gpu - 0x80044701, 0x80284702, 0xC0184706, 0xC0B04705, 0x80084714
* SVCs:
* * SetMemoryAttribute
* * CreateTransferMemory
* * ResetSignal
* * GetSystemTick
* Addition of Compact Logger
What was fixed:
* SVCs:
* * SetHeapSize
* * SetMemoryAttribute
* * QueryMemory
* A release build would not set CMAKE_BUILD_TYPE to "RELEASE"
* The logger code was simplified
2019-11-15 19:30:04 +00:00

62 lines
2.5 KiB
C++

#pragma once
#include <memory.h>
#include "KObject.h"
namespace skyline::kernel::type {
/**
* KPrivateMemory is used to hold some amount of private memory
*/
class KPrivateMemory : public KObject {
private:
const DeviceState &state; //!< The state of the device
public:
pid_t owner; //!< The PID of the process owning this memory
u64 address; //!< The address of the allocated memory
size_t size; //!< The size of the allocated memory
u16 ipcRefCount{}; //!< The amount of reference to this memory for IPC
u16 deviceRefCount{}; //!< The amount of reference to this memory for IPC
memory::Permission permission; //!< The permissions for the allocated memory
const memory::Type type; //!< The type of this memory allocation
std::vector<memory::RegionInfo> regionInfoVec; //!< This holds information about specific memory regions
/**
* @param state The state of the device
* @param pid The PID of the main
* @param dstAddress The address to map to (If NULL then an arbitrary address is picked)
* @param srcAddress The address to map from (If NULL then no copy is performed)
* @param size The size of the allocation
* @param permission The permissions for the allocated memory
* @param type The type of the memory
*/
KPrivateMemory(const DeviceState &state, pid_t pid, u64 dstAddress, u64 srcAddress, size_t size, memory::Permission permission, const memory::Type type);
/**
* @brief Remap a chunk of memory as to change the size occupied by it
* @param newSize The new size of the memory
* @param canMove If the memory can move if there is not enough space at the current address
* @return The address the memory was remapped to
*/
u64 Resize(size_t newSize, bool canMove);
/**
* @brief Updates the permissions of a chunk of mapped memory
* @param permission The new permissions to be set for the memory
*/
void UpdatePermission(memory::Permission permission);
/**
* @brief Returns a MemoryInfo object
* @param address The specific address being queried (Used to fill MemoryAttribute)
* @return A Memory::MemoryInfo struct based on attributes of the memory
*/
memory::MemoryInfo GetInfo(u64 address);
/**
* @brief The destructor of private memory, it deallocates the memory
*/
~KPrivateMemory();
};
}