overlay-debs: Add linux debdiff for RB1

[lool]

This turns on a number of configs, more than needed, to fix RB1 boot
with Debian kernels.

The changelog doesn't use experimental because that requires using "exp"
in the version number.

[basak-qcom]

Looks good, and nice job narrowing down the config changes to such a small list :)

Ideally we'd confirm this is booting and passing tests, but I'm unclear on what's needed for that (still absorbing the various defined workflows). I do understand it won't change any builds in itself though, so feel free to land when appropriate.

[lumag]

Please follow comments

[lool]

I pushed a new version, but:

• it fails to build due to expecting a module for d-i that isn't there
• a few of the configs I tried to =y reverted to =m due to now missing dependencies – QCOM_SMD_RPM and QCOM_CLK_SMD_RPM notably

I'm trying a build reverting the changes for the above, and will see if it's enough

[lool]

I pushed my current build attempt, but I haven't finished building + testing this

[lool]

I pushed my current build attempt, but I haven't finished building + testing this

Doesn't boot

[lool]

Ok, this latest one does boot and seems decent in config changes

[lool]

This is the actual diff between the generated configs for experimental and debs resulting from my latest debdiff:

5173c5173
< CONFIG_PINCTRL_QCM2290=m
---
> CONFIG_PINCTRL_QCM2290=y
10068c10068
< # CONFIG_CLK_QCM2290_GPUCC is not set
---
> CONFIG_CLK_QCM2290_GPUCC=y
10074c10074
< CONFIG_QCOM_CLK_SMD_RPM=m
---
> CONFIG_QCOM_CLK_SMD_RPM=y
10099c10099
< CONFIG_QCM_GCC_2290=m
---
> CONFIG_QCM_GCC_2290=y
10293c10293
< CONFIG_QCOM_APCS_IPC=m
---
> CONFIG_QCOM_APCS_IPC=y
10370c10370
< CONFIG_RPMSG=m
---
> CONFIG_RPMSG=y
10378c10378
< CONFIG_RPMSG_QCOM_SMD=m
---
> CONFIG_RPMSG_QCOM_SMD=y
10483,10484c10483,10484
< CONFIG_QCOM_SMEM=m
< CONFIG_QCOM_SMD_RPM=m
---
> CONFIG_QCOM_SMEM=y
> CONFIG_QCOM_SMD_RPM=y
10600c10600
< CONFIG_QCOM_RPMPD=m
---
> CONFIG_QCOM_RPMPD=y
11731c11731
< CONFIG_INTERCONNECT_QCOM_MSM8996=m
---
> CONFIG_INTERCONNECT_QCOM_MSM8996=y
11733c11733
< CONFIG_INTERCONNECT_QCOM_QCM2290=m
---
> CONFIG_INTERCONNECT_QCOM_QCM2290=y
11752c11752
< CONFIG_INTERCONNECT_QCOM_SM6115=m
---
> CONFIG_INTERCONNECT_QCOM_SM6115=y
11763c11763
< CONFIG_INTERCONNECT_QCOM_SMD_RPM=m
---
> CONFIG_INTERCONNECT_QCOM_SMD_RPM=y

[lool]

This latest one does NOT boot; here's the full config diff:

5173c5173
< CONFIG_PINCTRL_QCM2290=m
---
> CONFIG_PINCTRL_QCM2290=y
10068c10068
< # CONFIG_CLK_QCM2290_GPUCC is not set
---
> CONFIG_CLK_QCM2290_GPUCC=m
10099c10099
< CONFIG_QCM_GCC_2290=m
---
> CONFIG_QCM_GCC_2290=y
10293c10293
< CONFIG_QCOM_APCS_IPC=m
---
> CONFIG_QCOM_APCS_IPC=y
10483c10483
< CONFIG_QCOM_SMEM=m
---
> CONFIG_QCOM_SMEM=y

[lool]

Latest debdiff does NOT boot, so perhaps can remain a module, but CONFIG_RPMSG_QCOM_SMD=y is needed

[lool]

Latest attempt fails to boot, but in a creative new way:

[...]
[    1.138960] Checked W+X mappings: passed, no W+X pages found
[    1.139006] Run /init as init process
[    1.707907] spmi_pmic_arb 1c40000.spmi: PMIC arbiter version v5 (0x50010000)
[    1.708863] /soc@0/spmi@1c40000/pmic@0/typec@1500/connector: Fixed dependency cycle(s) with /soc@0/phy@1615000
[    1.708955] /soc@0/spmi@1c40000/pmic@0/typec@1500/connector: Fixed dependency cycle(s) with /soc@0/usb@4ef8800/usb@4e00000
[    1.734884] irq: IRQ21: trimming hierarchy from :soc@0:interrupt-controller@f200000-1
[    1.735118] input: gpio-keys as /devices/platform/gpio-keys/input/input0
[    1.782256] gpio-518 (sda): enforced open drain please flag it properly in DT/ACPI DSDT/board file
[    1.782310] gpio-519 (scl): enforced open drain please flag it properly in DT/ACPI DSDT/board file
[    1.782575] /hdmi-connector: Fixed dependency cycle(s) with /i2c/hdmi-bridge@2b
[    1.782648] /soc@0/display-subsystem@5e00000/dsi@5e94000: Fixed dependency cycle(s) with /i2c/hdmi-bridge@2b
[    1.782712] /i2c/hdmi-bridge@2b: Fixed dependency cycle(s) with /hdmi-connector
[    1.782810] /i2c/hdmi-bridge@2b: Fixed dependency cycle(s) with /soc@0/display-subsystem@5e00000/dsi@5e94000
[    1.783000] i2c-gpio i2c: using lines 518 (SDA) and 519 (SCL)
[    1.825409] sdhci: Secure Digital Host Controller Interface driver
[    1.825441] sdhci: Copyright(c) Pierre Ossman
[    1.842988] sdhci-pltfm: SDHCI platform and OF driver helper
[    1.923951] qcom_scm: convention: smc arm 64
[    1.925932] qcom_scm firmware:scm: qseecom: found qseecom with version 0x1402000
[    1.925985] qcom_scm firmware:scm: qseecom: untested machine, skipping
[    1.928258] arm-smmu 59a0000.iommu: probing hardware configuration...
[    1.928293] arm-smmu 59a0000.iommu: SMMUv2 with:
[    1.928322] arm-smmu 59a0000.iommu:  stage 1 translation
[    1.928333] arm-smmu 59a0000.iommu:  non-coherent table walk
[    1.928343] arm-smmu 59a0000.iommu:  (IDR0.CTTW overridden by FW configuration)
[    1.928355] arm-smmu 59a0000.iommu:  stream matching with 4 register groups
[    1.928378] arm-smmu 59a0000.iommu:  5 context banks (0 stage-2 only)
[    1.928402] arm-smmu 59a0000.iommu:  Supported page sizes: 0x61311000
[    1.928413] arm-smmu 59a0000.iommu:  Stage-1: 48-bit VA -> 36-bit IPA
[    1.928514] arm-smmu 59a0000.iommu:  preserved 0 boot mappings
[    1.929611] platform 5900000.gpu: Adding to iommu group 0
[    1.933896] arm-smmu c600000.iommu: probing hardware configuration...
[    1.933933] arm-smmu c600000.iommu: SMMUv2 with:
[    1.933957] arm-smmu c600000.iommu:  stage 1 translation
[    1.933968] arm-smmu c600000.iommu:  non-coherent table walk
[    1.933978] arm-smmu c600000.iommu:  (IDR0.CTTW overridden by FW configuration)
[    1.933991] arm-smmu c600000.iommu:  stream matching with 41 register groups
[    1.934011] arm-smmu c600000.iommu:  50 context banks (0 stage-2 only)
[    1.934182] arm-smmu c600000.iommu:  Supported page sizes: 0x61311000
[    1.934195] arm-smmu c600000.iommu:  Stage-1: 36-bit VA -> 36-bit IPA
[    1.934295] arm-smmu c600000.iommu:  preserved 0 boot mappings
[    1.935096] platform 4744000.mmc: Adding to iommu group 1
[    1.935304] platform 4784000.mmc: Adding to iommu group 2
[    1.935535] platform 4a00000.dma-controller: Adding to iommu group 3
[    1.935739] platform 4ac0000.geniqup: Adding to iommu group 4
[    1.935934] platform 5e00000.display-subsystem: Adding to iommu group 5
[    1.936144] platform c800000.wifi: Adding to iommu group 6
[    1.942888] platform 4e00000.usb: Adding to iommu group 7
[    1.943180] /soc@0/spmi@1c40000/pmic@0/typec@1500/connector: Fixed dependency cycle(s) with /soc@0/usb@4ef8800/usb@4e00000
[    1.943275] /soc@0/phy@1615000: Fixed dependency cycle(s) with /soc@0/usb@4ef8800/usb@4e00000
[    1.943402] /soc@0/usb@4ef8800/usb@4e00000: Fixed dependency cycle(s) with /soc@0/spmi@1c40000/pmic@0/typec@1500/connector
[    1.943454] /soc@0/usb@4ef8800/usb@4e00000: Fixed dependency cycle(s) with /soc@0/phy@1615000
[    1.956823] sdhci_msm 4784000.mmc: Got CD GPIO
[    1.973539] 4a90000.serial: ttyMSM0 at MMIO 0x4a90000 (irq = 107, base_baud = 0) is a MSM
[    1.989432] /soc@0/spmi@1c40000/pmic@0/typec@1500/connector: Fixed dependency cycle(s) with /soc@0/phy@1615000
[    1.989530] /soc@0/spmi@1c40000/pmic@0/typec@1500/connector: Fixed dependency cycle(s) with /soc@0/usb@4ef8800/usb@4e00000
[    2.005031] printk: legacy console [ttyMSM0] enabled
[    2.072842] s3: Bringing 0uV into 1352000-1352000uV
[    2.102740] sdhci_msm 4784000.mmc: Got CD GPIO
[    2.111895] s4: Bringing 0uV into 2072000-2072000uV
[   25.293347] rcu: INFO: rcu_sched self-detected stall on CPU
[   25.298981] rcu:     0-....: (5250 ticks this GP) idle=1354/1/0x4000000000000000 softirq=313/313 fqs=2625
[   25.308328] rcu:     (t=5253 jiffies g=-823 q=54 ncpus=4)
[   25.313503] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.15-arm64 #1 NONE  Debian 6.15.3-1~exp1
[   25.313512] Hardware name: qcom  Inc. Robotics RB1/ Inc. Robotics RB1, BIOS 2025.07-rc1-g318459c490c3 07/01/2025
[   25.313516] Workqueue: async async_run_entry_fn
[   25.313534] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[   25.313540] pc : mutex_unlock+0x3c/0x70
[   25.313549] lr : _find_opp_table_unlocked+0xb0/0x108
[   25.313561] sp : ffff800080093950
[   25.313563] x29: ffff800080093950 x28: ffff010fc0250000 x27: ffff010fc0012028
[   25.313572] x26: ffffa5641d31b030 x25: 0000000000000001 x24: ffff010fc0b37010
[   25.313580] x23: 0000000000000000 x22: ffffa5641d6933e0 x21: ffff010fd3d8bc78
[   25.313587] x20: ffff010fd3d8bc00 x19: ffff010fc0b37010 x18: 00000000eab0d173
[   25.313595] x17: 0000000000000000 x16: 0000000000000002 x15: 0000000000000000
[   25.313603] x14: ffffffffffffffff x13: 0000000000000000 x12: 0101010101010101
[   25.313610] x11: ff7f7f7f7f7f7f7f x10: ffffa5641d2c4083 x9 : ffffa5641bd59a58
[   25.313618] x8 : ffff010fc7f909d0 x7 : 0000000000000000 x6 : 0000000000000000
[   25.313625] x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000
[   25.313632] x2 : ffff010fc0273b40 x1 : ffff010fc0273b40 x0 : ffff010fd3d8bc78
[   25.313641] Call trace:
[   25.313645]  mutex_unlock+0x3c/0x70 (P)
[   25.313654]  _add_opp_table_indexed+0x44/0x3a0
[   25.313662]  dev_pm_opp_set_config+0x6c/0x6a0
[   25.313670]  genpd_set_required_opp_dev+0xa8/0xc8
[   25.313684]  __genpd_dev_pm_attach+0x220/0x308
[   25.313691]  genpd_dev_pm_attach+0x6c/0x90
[   25.313696]  dev_pm_domain_attach+0x54/0x60
[   25.313705]  platform_probe+0x58/0xe8
[   25.313714]  really_probe+0xc8/0x3a0
[   25.313722]  __driver_probe_device+0x84/0x160
[   25.313730]  driver_probe_device+0x44/0x130
[   25.313738]  __device_attach_driver+0xc4/0x170
[   25.313745]  bus_for_each_drv+0x90/0xf8
[   25.313752]  __device_attach_async_helper+0xbc/0x120
[   25.313760]  async_run_entry_fn+0x40/0x1e0
[   25.313767]  process_one_work+0x178/0x3e0
[   25.313774]  worker_thread+0x208/0x400
[   25.313781]  kthread+0x120/0x220
[   25.313790]  ret_from_fork+0x10/0x20
[   25.308328] rcu:     (t=5253 jiffies g=-823 q=54 ncpus=4)
[   25.313503] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.15-arm64 #1 NONE  Debian 6.15.3-1~exp1
[   25.313512] Hardware name: qcom  Inc. Robotics RB1/ Inc. Robotics RB1, BIOS 2025.07-rc1-g318459c490c3 07/01/2025
[   25.313516] Workqueue: async async_run_entry_fn
[   25.313534] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[   25.313540] pc : mutex_unlock+0x3c/0x70
[   25.313549] lr : _find_opp_table_unlocked+0xb0/0x108
[...]

[lool]

Latest attempt fails to boot, but in a creative new way:

Ok, this was a one-off; I rebooted 3 times successfully with the same kernel.

[lool]

Here's a full config diff between Debian experimental and latest booting debdiff:

35a36
> CONFIG_BUILD_SALT="6.15-arm64"
943a945
> CONFIG_MODULE_SIG_ALL=y
5173c5175
< CONFIG_PINCTRL_QCM2290=m
---
> CONFIG_PINCTRL_QCM2290=y
10068c10070
< # CONFIG_CLK_QCM2290_GPUCC is not set
---
> CONFIG_CLK_QCM2290_GPUCC=m
10074c10076
< CONFIG_QCOM_CLK_SMD_RPM=m
---
> CONFIG_QCOM_CLK_SMD_RPM=y
10099c10101
< CONFIG_QCM_GCC_2290=m
---
> CONFIG_QCM_GCC_2290=y
10293c10295
< CONFIG_QCOM_APCS_IPC=m
---
> CONFIG_QCOM_APCS_IPC=y
10370c10372
< CONFIG_RPMSG=m
---
> CONFIG_RPMSG=y
10378c10380
< CONFIG_RPMSG_QCOM_SMD=m
---
> CONFIG_RPMSG_QCOM_SMD=y
10483,10484c10485,10486
< CONFIG_QCOM_SMEM=m
< CONFIG_QCOM_SMD_RPM=m
---
> CONFIG_QCOM_SMEM=y
> CONFIG_QCOM_SMD_RPM=y
10600c10602
< CONFIG_QCOM_RPMPD=m
---
> CONFIG_QCOM_RPMPD=y
11731c11733
< CONFIG_INTERCONNECT_QCOM_MSM8996=m
---
> CONFIG_INTERCONNECT_QCOM_MSM8996=y
11733c11735
< CONFIG_INTERCONNECT_QCOM_QCM2290=m
---
> CONFIG_INTERCONNECT_QCOM_QCM2290=y
11752c11754
< CONFIG_INTERCONNECT_QCOM_SM6115=m
---
> CONFIG_INTERCONNECT_QCOM_SM6115=y
11763c11765
< CONFIG_INTERCONNECT_QCOM_SMD_RPM=m
---
> CONFIG_INTERCONNECT_QCOM_SMD_RPM=y
12642a12645
> CONFIG_MODULE_SIG_KEY="output/signing_key.pem"
12644a12648
> CONFIG_SYSTEM_TRUSTED_KEYS=""

[lool]

Latest debdiff boots, is ready to send to Debian, and for merging here; this is the actual config diff:

5173c5173
< CONFIG_PINCTRL_QCM2290=m
---
> CONFIG_PINCTRL_QCM2290=y
10068c10068
< # CONFIG_CLK_QCM2290_GPUCC is not set
---
> CONFIG_CLK_QCM2290_GPUCC=m
10074c10074
< CONFIG_QCOM_CLK_SMD_RPM=m
---
> CONFIG_QCOM_CLK_SMD_RPM=y
10099c10099
< CONFIG_QCM_GCC_2290=m
---
> CONFIG_QCM_GCC_2290=y
10293c10293
< CONFIG_QCOM_APCS_IPC=m
---
> CONFIG_QCOM_APCS_IPC=y
10370c10370
< CONFIG_RPMSG=m
---
> CONFIG_RPMSG=y
10375c10375
< CONFIG_RPMSG_QCOM_GLINK=m
---
> CONFIG_RPMSG_QCOM_GLINK=y
10377,10378c10377,10378
< CONFIG_RPMSG_QCOM_GLINK_SMEM=m
< CONFIG_RPMSG_QCOM_SMD=m
---
> CONFIG_RPMSG_QCOM_GLINK_SMEM=y
> # CONFIG_RPMSG_QCOM_SMD is not set
10483,10484c10483,10484
< CONFIG_QCOM_SMEM=m
< CONFIG_QCOM_SMD_RPM=m
---
> CONFIG_QCOM_SMEM=y
> CONFIG_QCOM_SMD_RPM=y
10600c10600
< CONFIG_QCOM_RPMPD=m
---
> CONFIG_QCOM_RPMPD=y
11731c11731
< CONFIG_INTERCONNECT_QCOM_MSM8996=m
---
> CONFIG_INTERCONNECT_QCOM_MSM8996=y
11733c11733
< CONFIG_INTERCONNECT_QCOM_QCM2290=m
---
> CONFIG_INTERCONNECT_QCOM_QCM2290=y
11752c11752
< CONFIG_INTERCONNECT_QCOM_SM6115=m
---
> CONFIG_INTERCONNECT_QCOM_SM6115=y
11763c11763
< CONFIG_INTERCONNECT_QCOM_SMD_RPM=m
---
> CONFIG_INTERCONNECT_QCOM_SMD_RPM=y

[lumag]

LGTM now, thanks a lot for all the debugging efforts!

[lool]

LGTM now, thanks a lot for all the debugging efforts!

thanks for the reviews and guidance!