Re: [PATCH v4 3/3] drm/panfrost: Synchronize and disable interrupts before powering off

2023-12-04 Thread Steven Price
On 04/12/2023 11:42, AngeloGioacchino Del Regno wrote: > To make sure that we don't unintentionally perform any unclocked and/or > unpowered R/W operation on GPU registers, before turning off clocks and > regulators we must make sure that no GPU, JOB or MMU ISR execution is > pending: doing that

Re: [PATCH v4 3/3] drm/panfrost: Synchronize and disable interrupts before powering off

2023-12-04 Thread Marek Szyprowski
On 04.12.2023 12:42, AngeloGioacchino Del Regno wrote: > To make sure that we don't unintentionally perform any unclocked and/or > unpowered R/W operation on GPU registers, before turning off clocks and > regulators we must make sure that no GPU, JOB or MMU ISR execution is > pending: doing that

Re: [PATCH v4 3/3] drm/panfrost: Synchronize and disable interrupts before powering off

2023-12-04 Thread Boris Brezillon
On Mon, 4 Dec 2023 12:42:15 +0100 AngeloGioacchino Del Regno wrote: > To make sure that we don't unintentionally perform any unclocked and/or > unpowered R/W operation on GPU registers, before turning off clocks and > regulators we must make sure that no GPU, JOB or MMU ISR execution is >