how to get the dam of memory true address in Thunderbolt Pcie. driver

App & System Services General
wyouken_liu OP
Created Dec ’21
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Dear all I am developing a pcie driver of Thunderbolt device in M1. hwo to get a example to require a dam memory buffer . I need get the true PhysicalAddress and send it to pcie device. can you help me !

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how to get the dam of memory true address in Thunderbolt Pcie. driver
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