BFE Engineering
42fb386f60
Replace every em dash with real punctuation (rewrites, not hyphen swaps) in docs, code comments, scripts, configs, and the port records; convert en dashes, curly quotes, ellipsis glyphs, arrows, and section signs to ASCII; drop machine-writing tell phrases from living docs. ADR titles now use a colon. The M2 bring-up DTS model string carried an em dash into the patch series and its record echoes; fixed at both, and the full series re-verified to apply cleanly onto pristine 6.18.46. One comment in freshness.h deliberately names the em dash glyph the UI renders as the unknown mark; that is data, kept as prose naming it. Verified: cargo tests (sim, config-lint, rs485-bridge), shellcheck, both driver MC/DC harnesses, patches-apply.
1.5 KiB
1.5 KiB
RGA port: DONE, verified on hardware (2026-08-24)
Ported the vendor char-dev RGA driver (drivers/video/rockchip/rga3/, the
multicore CONFIG_ROCKCHIP_MULTI_RGA driver: WardenOS's librga uses /dev/rga,
not V4L2) to 6.18. Open source (vendor C source). On warden-c8a3:
rga: rga2, irq = 55, match scheduler
rga: rga2 hardware loaded successfully, hw_version:3.3.87975
rga: rga2 probe successfully -> /dev/rga present, /dev/dma_heap present
Build tree wiring
drivers/video/rockchip/{Kconfig,Makefile} created (source rga3/); wired into
drivers/video/{Kconfig,Makefile}. CONFIG_ROCKCHIP_MULTI_RGA=y.
&rga2 { status="okay"; }. For /dev/dma_heap/cma: use the kernel's default 64 MiB
CMA + CONFIG_DMABUF_HEAPS{,_CMA,_SYSTEM}=y; do NOT add a linux,cma DT node
(a mis-aligned/duplicate one hangs the boot at reserved-memory init).
5.10 -> 6.18 API deltas fixed (all mechanical)
platform_driver.remove:int->void(rga_drv_remove, drop the returns).hrtimer_init(&t,...)+t.function=fn->hrtimer_setup(&t, fn, CLOCK_MONOTONIC, HRTIMER_MODE_REL): the scheduler tick; verified under the live probe.iommu_map/iommu_map_sg: added the newgfparg (GFP_KERNEL).get_user_pages_remote: dropped the removedvmasarg.MAX_ORDER(removed) -> compat#define MAX_ORDER (MAX_PAGE_ORDER + 1)inrga3/include/rga_drv.h(preserves the old exclusive semantics everywhere).MODULE_IMPORT_NS(<token>)->MODULE_IMPORT_NS("DMA_BUF")(string form).