pub mod x86_64; #[cfg(target_arch = "x86_64")] pub use self::x86_64::*; //公开x86_64架构下的函数,使外界接口统一 use crate::{ driver::pci::pci::{BusDeviceFunction, PciAddr, PciError, PciRoot, SegmentGroupNumber}, mm::PhysAddr, }; pub mod io; /// TraitPciArch Pci架构相关函数,任何架构都应独立实现trait里的函数 pub trait TraitPciArch { /// @brief 读取寄存器值,x86_64架构通过读取两个特定io端口实现 /// @param bus_device_function 设备的唯一标识符 /// @param offset 寄存器偏移值 /// @return 读取到的值 fn read_config(bus_device_function: &BusDeviceFunction, offset: u8) -> u32; /// @brief 写入寄存器值,x86_64架构通过读取两个特定io端口实现 /// @param bus_device_function 设备的唯一标识符 /// @param offset 寄存器偏移值 /// @param data 要写入的值 fn write_config(bus_device_function: &BusDeviceFunction, offset: u8, data: u32); /// @brief PCI域地址到存储器域地址的转换,x86_64架构为一一对应 /// @param address PCI域地址 /// @return usize 转换结果 fn address_pci_to_physical(pci_address: PciAddr) -> PhysAddr; /// @brief 获取Segement的root地址,x86_64架构为acpi mcfg表中读取 /// @param segement 组id /// @return Result 转换结果或出错原因 fn ecam_root(segement: SegmentGroupNumber) -> Result; }