kernel: RGA 2D accelerator ported (open-source vendor driver) — verified
Ported the vendor multicore RGA char-dev driver (drivers/video/rockchip/rga3/, CONFIG_ROCKCHIP_MULTI_RGA) to 6.18 — WardenOS's librga uses /dev/rga, not V4L2. On warden-c8a3: rga2 probe successful, hw_version 3.3.87975, /dev/rga + /dev/dma_heap present. This is the CPU-savings 2D accelerator (LVGL UI offload). 6 mechanical 5.10->6.18 API fixes (platform remove->void, hrtimer_init-> hrtimer_setup, iommu_map* gfp arg, get_user_pages_remote vmas arg, MAX_ORDER compat, MODULE_IMPORT_NS string). CMA via the default 64 MiB pool + DMABUF_HEAPS_CMA (a custom linux,cma DT node hangs boot). Recipe + deltas in rga/PORT-DONE.md. All open source (vendor C source). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_017wB8KB3MMQztRDXCMCkPrf
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Claude Opus 4.8
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fda84b4c27
@@ -159,3 +159,8 @@
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&i2s0_8ch {
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status = "okay";
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};
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&rga2 {
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status = "okay";
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};
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