Display Sharing in Heterogeneous Systems Using Linux as High...
summary
Describes an implemented Linux-side solution that maps shared and owned display resources into DRM/KMS using TI’s Linux display driver and device-tree static partitioning, with an alternate RPMsg-based IPC path for dynamic clients. Shows hardware firewalling of 4K-aligned register regions, duplicated IRQs for per-core vblank delivery, and overlay manager blending so RTOS planes remain intact when Linux crashes; validated on TI K3/TDA-class SoCs and demoed multi-host (up to four) pipeline sharing.
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chapters (12)
- 0:00Display sharing introduction
- 1:06Practical applications
- 6:21Design considerations
- 7:26IPC-based solutions
- 13:39Raspberry Pi solution
- 17:22Static partitioning design
- 28:08Demo and hardware
- 29:23Q&A
- 31:31Q&A
- 36:23Live demo
- 38:41Q&A
- 41:25Summary
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