Unifying Android and Mainline Kernel Graphics Stack
Talkat Embedded Linux Conference + OpenIoT Summit North America 2017 · on Thursday, 2017-02-23· at 15:30· Grand Ballroom I·
summary
Explains how Android moves off a monolithic HAL onto upstream DRM by landing Atomic Modesetting in the kernel and replacing Android’s sync_timeline with a lean sync_file API; shows kernel-side work (KMS atomic check/commit, in/out fence properties, default explicit-fence support in the drm core) and userspace changes (hwcomposer v2 behavior, drm-hwcomposer port used on Pixel C, GLES extensions for fence import). Reports multi-year effort with initial patches merged and drivers (i915, virtio/virgl and others) getting explicit-fence support.
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chapters (6)
- 0:00Start
- 2:16The Android World
- 8:05Explicit Synchronization
- 12:03Sync Fence
- 13:46ADF and Mainline
- 31:47DRM renderer
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