Hi Luca, On 11/12/2024 8:49 PM, Luca Weiss wrote: > Hi Vedang, > > On Tue Nov 12, 2024 at 3:39 PM CET, Vedang Nagar wrote: >> >> >> On 11/12/2024 6:43 PM, Dmitry Baryshkov wrote: >>> On Tue, 12 Nov 2024 at 08:17, Vedang Nagar <quic_vnagar@xxxxxxxxxxx> wrote: >>>> >>>> >>>> >>>> On 10/7/2024 1:20 AM, Dmitry Baryshkov wrote: >>>>> On Fri, Oct 04, 2024 at 04:22:31PM GMT, Vedang Nagar wrote: >>>>>> Enable the venus node on Qualcomm sc7280. It was made disabled >>>>>> earlier to avoid bootup crash, which is fixed now with [1]. >>>>> >>>>> NAK, there might be other reasons to keep venus disabled, like the lack >>>>> of the vendor-signed firmware for the particular device. >>>> Can you pls elaborate more on this? Any device with sc7280 SOC can use >>>> venus.mbn which is already present in linux-firmware git. >>> >>> Can it though if the device is fused to use vendor keys and to check >>> the trust chain? >> Yes, infact the existing ones are signed and works with trustzone authentication. > > No, the venus firmware from linux-firmware does not work on a device > with secure boot on, like the (QCM6490) Fairphone 5 smartphone. Are you saying even after applying this [1] you are seeing the same ? [1] https://patchwork.kernel.org/project/linux-media/patch/20231201-sc7280-venus-pas-v3-2-bc132dc5fc30@xxxxxxxxxxxxx/ > > $ rm /lib/firmware/qcom/qcm6490/fairphone5/venus.mbn > $ cp /lib/firmware/qcom/vpu-2.0/venus.mbn.zst /lib/firmware/qcom/qcm6490/fairphone5/venus.mbn.zst > > leads to > > [ 10.848191] qcom-venus aa00000.video-codec: Adding to iommu group 13 > [ 10.863062] qcom-venus aa00000.video-codec: non legacy binding > [ 10.909555] qcom-venus aa00000.video-codec: error -22 initializing firmware qcom/qcm6490/fairphone5/venus.mbn > [ 10.910099] qcom-venus aa00000.video-codec: fail to load video firmware > [ 10.910849] qcom-venus aa00000.video-codec: probe with driver qcom-venus failed with error -22 > > It's the same with e.g. adsp firmware, modem firmware, etc. > > With secure boot off, yes, the hardware will load any firmware > regardless of the signature. > > Regards > Luca > >>> >>>> >>>> Regards, >>>> Vedang Nagar >>>>> >>>>>> >>>>>> [1] >>>>>> https://lore.kernel.org/linux-media/20231201-sc7280-venus-pas-v3-2-bc132dc5fc30@xxxxxxxxxxxxx/ >>>>>> >>>>>> Signed-off-by: Vedang Nagar <quic_vnagar@xxxxxxxxxxx> >>>>>> --- >>>>>> arch/arm64/boot/dts/qcom/sc7280.dtsi | 2 -- >>>>>> 1 file changed, 2 deletions(-) >>>>> >>> >>> >>> >
