There is a internal interface ndi_ra_alloc() for you.
Tough this interface is designed for nexus drivers to allocate
the pci resource, it is a extra bonus for leaf drivers. You can
use it in your driver, but it is not guaranteed for leaf drivers.
19:57,:
hi,
I am using the Simics simulator to simulate a serengeti machine for
the purpose of research.
The PCI devices have three memory spaces: configuration, i/o and
memory space in the memory map. Now, I want to write a driver for a
particular PCI device. One of the entries in the driver is going to
provide a way allocating the PCI memory space by some designate
algorithm.
I am new in PCI driver writing, can anyone tell me if the PCI memory
space specified by the BAR(Base Address Register) in PCI configuration
space is capable of being allocated by the user program or by the
device driver?
Thanks in advance.
--
Regards
Dunning
School Of Computer Science and Technology
Beijng Institute of Technology, China, 100081
[email protected] <mailto:[email protected]>
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