gpu block diagram

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Thanks for the details Alex!

Here is an attempt to formalize the decomposition of a
(mostly Renoir) APU, using plantuml.  That's highly preliminary,
focusing on blocks/sub-blocks/firmware, based on my current
partial (and surely incorrect at places) understanding.
I focused on getting contents quickly, so the formalism itself
is shaky.

Can you spot any error ?  Fill those holes (usually marked with
"?") ?  What additional blocks would make sense (caches at least,
I guess) ?  What additional information would help understand how
they work together (control/data flows, busses...) ?

Indentation is shaky too, better format it to read (e.g. by
pasting in http://www.plantuml.com/plantuml/uml/)

------ >8 -------
@startuml
package "APU" {
 package CPU {
 }
 package GPU {
  package common? [[{"GPU Family"?}]] {
  }
  package GFX [[{Graphics and Compute Engine}]] {
   package CP [[{Command Processor}]] {
    package PFP [[{MicroEngine Compute}]] {
      package "pfp fw" #cccccc {
      }
    }
    package ME [[{MicroEngine ?}]] {
      package "me fw" #cccccc {
      }
    }
    package CE [[{?}]] {
      package "ce fw" #cccccc {
      }
    }
    package MEC [[{MicroEngine Compute}]] {
      package "mec fw" #cccccc {
      }
      package "mec2 fw?" #cccccc {
      }
    }
   }
   package RLC [[{RunList Controller (pm)}]] {
      package "rlc fw" #cccccc {
      }
   }
  }

  package '"management"'<<Cloud>>  {
  package MES [[{Micro-Engine Scheduler}]] {
  }
  package SMU [[{System Mamagement Unit}]] {
  }
  package PSP [[{Platform Security Processor}]] {
    package "asd fw" #cccccc {
    }
    package "ta fw" #cccccc {
    }
  }

  package IH [[{Interrupt Handler}]] {
  }
  package GMC [[{Graphics Memory Controller}]] {
  }
  package SDMA [[{System DMA}]] {
    package "sdma fw" #cccccc {
    }
  }
  }

  package DM [[{Display Manager, link to...}]] {
   package "DMUB? DMU?" [[{Display Micro-Controller Unit}]] {
    package "dmcub fw" #cccccc {
    }
   }
   package ... {
   }
  }

  package multimedia <<Cloud>> {
   package .... {
   }
   package VCN {
    package "vcn fw" #cccccc {
    }
   }
   package JPEG {
   }
  }
 }
}
@enduml
------ >8 -------



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