Messages in this thread | | | Date | Thu, 23 Nov 2023 11:40:53 +0100 | Subject | Re: [PATCH] drm/panfrost: Ignore core_mask for poweroff and sync interrupts | From | AngeloGioacchino Del Regno <> |
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Il 23/11/23 11:39, Krzysztof Kozlowski ha scritto: > On 23/11/2023 10:53, AngeloGioacchino Del Regno wrote: >> Some SoCs may be equipped with a GPU containing two core groups >> and this is exactly the case of Samsung's Exynos 5422 featuring >> an ARM Mali-T628 MP6 GPU: the support for this GPU in Panfrost >> is partial, as this driver currently supports using only one >> core group and that's reflected on all parts of it, including >> the power on (and power off, previously to this patch) function. >> >> The issue with this is that even though executing the soft reset >> operation should power off all cores unconditionally, on at least >> one platform we're seeing a crash that seems to be happening due >> to an interrupt firing which may be because we are calling power >> transition only on the first core group, leaving the second one >> unchanged, or because ISR execution was pending before entering >> the panfrost_gpu_power_off() function and executed after powering >> off the GPU cores, or all of the above. > > Does not apply - I tried next 20231117/21/22/23. >
Sorry about that, I'll send a v2 soon.
Thanks, Angelo
> Best regards, > Krzysztof > > _______________________________________________ > Kernel mailing list -- kernel@mailman.collabora.com > To unsubscribe send an email to kernel-leave@mailman.collabora.com
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