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Help ! Question about PCI DMA memory allocation


Hi !

My platform is MIPS32(IDT32438), I have a PCI device which has on chip
DMA controller, I am using it to transfter data between the PCI device
and system memory. I went through this discuss list and some one suggest
that the DMA memory should be statically allocated rather than using
malloc(), I don't quite understand where the restriction is and if I
have to use malloc(), what kind of problem I might encounter?  Please
shed a light !

thanks

Zi





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