Use common::Dma in ahcid.

ahcid/src/ahci/disk_ata.rs

@@ -1,9 +1,10 @@
 use std::convert::TryInto;
 use std::ptr;
 
-use syscall::io::Dma;
 use syscall::error::Result;
 
+use common::dma::Dma;
+
 use super::hba::{HbaPort, HbaCmdTable, HbaCmdHeader};
 use super::Disk;
 

ahcid/src/ahci/disk_atapi.rs

@@ -5,9 +5,10 @@ use std::ptr;
 
 use byteorder::{ByteOrder, BigEndian};
 
-use syscall::io::Dma;
 use syscall::error::{Result, EBADF, Error};
 
+use common::dma::Dma;
+
 use super::hba::{HbaPort, HbaCmdTable, HbaCmdHeader};
 use super::Disk;
 

ahcid/src/ahci/hba.rs

@@ -3,11 +3,13 @@ use std::mem::size_of;
 use std::ops::DerefMut;
 use std::{ptr, u32};
 
-use syscall::io::{Dma, Io, Mmio};
+use syscall::io::{Io, Mmio};
 use syscall::error::{Error, Result, EIO};
 
 use super::fis::{FisType, FisRegH2D};
 
+use common::dma::Dma;
+
 const ATA_CMD_READ_DMA_EXT: u8 = 0x25;
 const ATA_CMD_WRITE_DMA_EXT: u8 = 0x35;
 const ATA_CMD_IDENTIFY: u8 = 0xEC;