18–20 Sept 2024
Europe/Vienna timezone

Supporting generic restricted dmabuf heap

20 Sept 2024, 11:20
20m
"Hall L1" (Austria Center)

"Hall L1"

Austria Center

135
Android MC Android MC

Speaker

Prakash Gupta (Qualcomm)

Description

Kernel supports default cma and system dmabuf heaps. In order to support protected usecase, additional heap types needs to be supported.

There are quite a few downstream dmabuf heaps maintained by vendors to support protected usecase. There is need to provide generic framework, which will reduce fragmentation of such dmabuf heap types.

The proposed restricted dmabuf heaps will support different allocation method ( SG, CMA etc) and access restriction methods.

Primary author

Prakash Gupta (Qualcomm)

Presentation materials