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I found two kernel modules in /lib/modules folder, they are mali.ko and ump.ko, and I tried to google some information about it, unfortunately, I found nothing valuable information.

if you have worked on those two kernel modules, can you tell me what they are used for ?

thanks.

Peter L.
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chinabenjamin66
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2 Answers2

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The Mali GPU kernel device driver [mali.ko] handles:

  • Access to the Mali GPU hardware

  • Interrupt handling

  • Low level memory management

The UMP kernel device driver [ump.ko] handles:

  • Access to allocated UMP memory through a secure ID. This enables memory to be shared across different applications, drivers and hardware components to facilitate zero-copy operations.

  • The physical adress information required to set up an MMU or MPU table. {MMU= Memory Management Unit; MPU= Memory Protection Unit}

  • A method to map UMP memory into CPU adress space, to enable reading and writing.

Malte
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mali.ko : graphics processing unit for ARM ( http://en.wikipedia.org/wiki/Mali_(GPU) ) ump.ko : that I do not know

Shmarkus
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  • Please post your answer with an explanation of what is in the link. Link-rot can occur, and then the link will be useless. – Blue Ice Mar 13 '14 at 20:34