求助映射noncached memory 的方法

在DDK2000 help中关于NdisReadRegisterUlong的解释：

///////////////////////////////////////////////////////////
NdisReadRegisterUlong
VOID
  NdisReadRegisterUlong(
    IN PULONG  Register,
    OUT PULONG  Data
    );
NdisReadRegisterUlong is called by the NIC driver to read a ULONG from a memory-mapped device register.

Parameters
Register
Points to the memory-mapped register. This virtual address must fall within a range returned by an initialization-time call to NdisMMapIoSpace.
Data
Points to the caller-supplied variable in which this function returns the ULONG read from Register.
Comments
If a driver calls this function, its NIC's device registers must be mapped to noncached memory during driver initialization.

Callers of NdisReadRegisterUlong can be running at any IRQL.
///////////////////////////////////////////////////////////

NdisMMapIoSpace映射后是可以cache的内存啊！用那个函数可以映射位非cache的内存啊？

[编辑 -  10/27/04 by  flyhobo]

为什么没人解答啊！
分少了吗？

   试试cacheDmaMalloc吧

  试试cacheDmaMalloc吧

cacheDmaMalloc没查到啊！他是哪里的函数啊！