Re: [PATCH v9 1/6] drm/fourcc: Add modifier definitions for describing Amlogic Video Framebuffer Compression

Hi, On 03/07/2020 11:08, Simon Ser wrote: > Thanks for the update! > > The driver should also disallow importing a AMLOGIC_FBC_LAYOUT_SCATTER > DMA-BUF from another device, but I guess this is clear enough ("not > transferrable between Amlogic SoCs"). Good idea, I'll experiment disabling import

Re: [PATCH v9 1/6] drm/fourcc: Add modifier definitions for describing Amlogic Video Framebuffer Compression

Thanks for the update! The driver should also disallow importing a AMLOGIC_FBC_LAYOUT_SCATTER DMA-BUF from another device, but I guess this is clear enough ("not transferrable between Amlogic SoCs"). >From a user-space PoV: Acked-by: Simon Ser

[PATCH v9 1/6] drm/fourcc: Add modifier definitions for describing Amlogic Video Framebuffer Compression

Amlogic uses a proprietary lossless image compression protocol and format for their hardware video codec accelerators, either video decoders or video input encoders. It considerably reduces memory bandwidth while writing and reading frames in memory. The underlying storage is considered to be 3