claude-noether
62a6f88abd
2026-05-16 bisect found that linux-rk3588-marfrit @ f8f3ad9 (the previous baseline.ref) black-screens ampere — eDP connector reports connected/enabled/dpms On + SDDM starts + backlight on, but the panel shows no pixels. Decomposing the suspend/resume patch 0010 into 5 atomic sub-commits and reverting all of them did NOT recover display, ruling out 0010 as the offender. The 6 patches already listed in fleet/ampere.yaml's includes apply cleanly on top of v7.0-rc3 mainline and produce a kernel that boots with working display + power-off. That's the verified-working baseline, captured here. Regression source is in one of the 12 remaining commits f8f3ad9 has on top of v7.0-rc3. Top suspect: 55d1b3dcc05e "clk: rockchip: rk3588: Drop CLK_SET_RATE_PARENT from DCLK_VOP2_SRC" (touches display controller clock parent rate). Bisect campaign separately. For consumers who want a ready-to-fetch ref instead of patches-on-mainline, the verified-working tree is on git.reauktion.de/marfrit/linux-rk3588-marfrit @ ampere-minimal-devices (7c241f2e2835). No change to the includes list — same 6 patches as #8, just retargeted to a baseline they can actually be applied to. Generated-by: Claude Opus 4.7 <claude@reauktion.de>
112 lines
5.6 KiB
YAML
112 lines
5.6 KiB
YAML
# kernel-agent manifest for ampere (CoolPi GenBook / Rockchip RK3588)
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#
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# Status: bootstrap. ka-promote / ka-build / ka-install CLI not yet
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# implemented; the canonical patch set + baseline below is the input
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# for the manual flow that produces linux-ampere-fourier (same shape
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# as fresnel's bootstrap reference build).
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#
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# Asks #2 (VP9 enablement on RK3588 rkvdec) and #3 (AV1 dec integration)
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# from kernel-agent issue #6 are NOT addressed in this manifest —
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# tracked separately for a follow-up sprint.
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host: ampere
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arch: arm64
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soc: rockchip/rk3588
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module: coolpi-cm5
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board: coolpi-cm5-genbook
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distro: archlinux-arm
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baseline:
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tree: torvalds/linux
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url: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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ref: v7.0-rc3
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upstream_compat: linux-7.0-rc3
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# 2026-05-16 bisect note: the linux-rk3588-marfrit branch tip @ f8f3ad9
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# (18 commits ahead of v7.0-rc3) BLACK-SCREENS ampere — connector
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# reports connected/enabled/dpms On + SDDM starts + backlight on, but
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# panel shows no pixels. Decomposing the suspend/resume patch (0010
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# family) into 5 atomic sub-commits and reverting all 5 did NOT recover
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# display (test-arch-plus-pcie3 branch). The 6 patches listed below
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# applied on top of v7.0-rc3 directly DO boot with working display
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# (ampere-minimal-devices branch @ 7c241f2). Regression source is in
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# one of the remaining 12 commits in f8f3ad9 — top suspect:
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# 55d1b3dcc05e "clk: rockchip: rk3588: Drop CLK_SET_RATE_PARENT from
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# DCLK_VOP2_SRC" (touches display controller clock parent rate). Other
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# excluded commits: Shawn Lin pcie3 phy series, Cristian Ciocaltea
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# clk/dts/dw-dp fixes, Sebastian Reichel hdmirx Rock 5 ITX, Pedro Alves
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# btrtl, and the suspend/resume patch 0010 family. Bisect campaign
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# separately.
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#
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# Branch ampere-minimal-devices on git.reauktion.de/marfrit/linux-rk3588-marfrit
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# is the verified-working tip if you want a ready-to-fetch ref instead
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# of patches-on-mainline.
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# Scope-tagged patch includes. Resolve to patches/<scope>/<file>.patch.
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# Apply order matters: pwm15 pinctrl (soc) must precede the genbook
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# pwm-fan node consumer.
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includes:
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- soc/rockchip/rk3588/0001-arm64-dts-rockchip-rk3588-Add-pwm15-pinctrl-entries.patch
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- board/coolpi-cm5-genbook/0002-arm64-dts-rockchip-rk3588-coolpi-cm5-genbook-Add-pwm-fan.patch
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- module/coolpi-cm5/0003-arm64-dts-rockchip-rk3588-coolpi-cm5-Fix-power-off-by-enabling-RK806-as-system-power-controller.patch
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- board/coolpi-cm5-genbook/0004-arm64-dts-rockchip-rk3588-coolpi-cm5-genbook-Enable-speaker-output-via-audio-graph-card.patch
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- board/coolpi-cm5-genbook/0005-arm64-dts-rockchip-rk3588-coolpi-cm5-genbook-Enable-USB-C-PD-charging-via-FUSB302.patch
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- board/coolpi-cm5-genbook/0008-arm64-dts-rockchip-rk3588-coolpi-cm5-genbook-Add-lid-switch-and-USB3-PHY-lane-config.patch
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# Explicitly NOT included this round (tracked for later sprints):
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# - VP9 enablement for RK3588 rkvdec (issue #6 ask 2). /dev/video0 only
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# advertises S265 + S264 today; vainfo lists 9 profiles, target is
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# 10. Requires identifying the VDPU381/383 patch chain + possible
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# DTS additions. RFC-stage work, scope unclear until research lands.
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# - AV1 decoder integration (issue #6 ask 3). Kernel side is fine
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# (/dev/video4 advertises AV1F). Backend libva-v4l2-request-fourier
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# needs iter39 for a third fd. Backend work, not kernel.
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# - misc_patches/genbook/kernel/0006 (arm64 Kconfig: do not select
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# HAVE_GCC_PLUGINS). Local-only build-config; not for upstream and
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# possibly redundant with the linux-rk3588-marfrit branch already.
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# - misc_patches/genbook/kernel/0009 (Bluetooth btrtl RTL_SEC_PROJ
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# non-fatal). Different subsystem; promote under driver/bluetooth/
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# when a campaign demands.
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# - misc_patches/genbook/kernel/0010 (multi-driver suspend/wakeup fix).
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# Promote under soc/rockchip/rk3588/ or split per affected driver
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# once the RockHard campaign decides the upstream-targeting shape.
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config:
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source: /proc/config.gz on running ampere kernel (7.0.0-rc3-ARCH+, hand-managed before this bootstrap)
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strategy: snapshot, fold to baseline, accept-new with rationale on diff
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package:
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name: linux-ampere-fourier
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versioning: "${baseline_ref}.kafr${pkgrel}" # 7.0.rc3.kafr1 etc.
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install_mode: alongside
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conflicts: []
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provides: []
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kernel_suffix: -ampere-fourier # /boot/firmware/Image-7.0.0-rc3-ampere-fourier
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bootloader: extlinux
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bootloader_path: /boot/firmware/extlinux/extlinux.conf # vfat partition on mmcblk0p1
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boot_path: /boot/firmware/ # vfat, 1.5G, ~1G free
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# ampere boots from a separate FAT partition (mmcblk0p1), unlike fresnel which
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# uses the root partition's /boot/. The extlinux-add hook needs to write to
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# /boot/firmware/extlinux/extlinux.conf, not /boot/extlinux/.
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verify:
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bar1_ssh_heartbeat: required
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bar2_pkg_version: required
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bar3_dtb_match:
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- power-off via 'shutdown -h' actually powers down (RK806 system-power-controller wired)
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- pwm15 pinctrl exposes group3-pwm15-m0..m3 entries
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- audio: speakers driven via ES8316 graph (not just headphone)
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bar4_per_patch_probe: opt-in
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bar5_burn_in: skip # laptop, runtime not constant
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build_host:
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primary: ampere # self-host, 8 cores RK3588, 32 GB RAM, native arch
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secondary: boltzmann # also RK3588 32 GB, kbuild-aarch64 container surrogate
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fallback: fermi # hertz LXD, ALARM aarch64
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# No distcc for kernel-agent builds — native make on the assigned host only.
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# ampere is self-hosting today because boltzmann was busy with userspace
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# builds when the bootstrap ran; either host can take the work.
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backup:
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pre_install: hertz:/sparfuxdata/kernel-agent-backups/ampere/${replaced_version}/
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