Li Yang-r58472 wrote:
No, we don't know if the BD ring is in MURAM or main memory as it is configurable. iopa() is best choice to handle both case, IMHO.
The above code would only be used if the BD is in MURAM. The "if bd_mem_part == MEM_PART_MURAM" would stay.
If the BD ring can be in main memory, then I don't think we should be using a function called "iopa" to get its physical address. It's conceivable that one day, iopa() will only work on memory that's been ioremap'ed.
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