patches

Canonical, version-controlled home for the out-of-tree patches and helpers used across the device-builder ecosystem (kernel, u-boot, ffmpeg, userspace). Build systems reference patch sets from here by scope/profile rather than vendoring their own copies, so a fix lands in one place.

Scopes

Dir	Scope
rocket/	Rockchip NPU — patches, UAPI header, and notes for the mainline rocket DRM accel driver (RK3588).
media-accel/	Rockchip HW video transcode (RK35xx/RK3588) — kernel decode/encode/RGA, ffmpeg-rockchip, and MPP/RGA userspace patches.

Each scope is self-contained and need not share a common internal layout — rocket/ keeps the shape it had as its own repo. Future scopes (kernel video-codec accel, ffmpeg-rockchip, MPP userspace) will be added as the generic builder is built out.

Profiles

profiles/<name>/profile.toml manifests bind a kernel-version range (applies_to_kernel) to an ordered, per-tree patch series drawn from the scopes above — the unit a builder consumes. profiles/rk3588-accel is the RK3588 mainline-7.1 media

• NPU series: kernel 040–086, ffmpeg 0001, userspace 001. A profile's kernel list spans scopes in one git am order (media-accel/kernel/* then rocket/*).

Consuming patches

boot2deb selects a profile by name (from its kernel definition), pins this repo to an exact commit in the recipe lock ([patches] commit), and runs a verify-applies gate that dry-runs the series with git am --3way, hard-erroring on any patch that does not apply. Offline builds fetch the pinned revision manually.

Licensing

This repository is mixed-license: repository-original artifacts carry a repository license, and each patch is a derivative work that inherits the license of the tree it modifies.

• Repository-original artifacts — this README, the media-accel/ scope READMEs, and the profile manifests under profiles/ — are GPL-3.0-or-later (LICENSES/GPL-3.0-or-later.txt), matching the userspace projects these profiles build against.
• rocket/ scope — the NPU driver patches are GPL-2.0-only (kernel-derivative work; see rocket/LICENSE). Its uAPI header rocket/uapi/rocket_accel.h is MIT (© Tomeu Vizoso), per its SPDX tag.
• media-accel/ scope — each patch inherits the license of its upstream tree (the Linux kernel, ffmpeg-rockchip, or the Rockchip MPP/RGA userspace); the patch's provenance header (From: / Source:) names that upstream. Kernel patches are GPL-2.0-only.

Per-file SPDX-License-Identifier tags and individual patch headers are authoritative where present.