io_buffer.hpp File Reference

#include <cstddef>
#include <cstdint>
#include <span>
#include "expected.hpp"

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Classes
struct	DmaRegion
	DMA 可访问内存区域的非拥有描述符 More...
class	IoBuffer
	动态分配、对齐 IO 缓冲区的 RAII 封装 More...

Typedefs
using	VirtToPhysFunc = auto(*)(uintptr_t virt) -> uintptr_t
	虚拟地址到物理地址转换回调类型

Functions
auto	IdentityVirtToPhys (uintptr_t virt) -> uintptr_t
	恒等映射：物理地址 == 虚拟地址（早期启动 / 无 MMU 时的默认实现）

Typedef Documentation

VirtToPhysFunc

using VirtToPhysFunc = auto (*)(uintptr_t virt) -> uintptr_t

虚拟地址到物理地址转换回调类型

Copyright

Copyright The SimpleKernel Contributors

Parameters

virt

需要转换的虚拟地址

Returns

对应的物理地址

Definition at line 18 of file io_buffer.hpp.

Function Documentation

IdentityVirtToPhys()

auto IdentityVirtToPhys ( uintptr_t  virt ) -> uintptr_t

inline

恒等映射：物理地址 == 虚拟地址（早期启动 / 无 MMU 时的默认实现）

Parameters

virt

虚拟地址

Returns

与输入相同的物理地址

Definition at line 25 of file io_buffer.hpp.

                                                                          {
  return virt;
}

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