Re: [PATCH 1/1] ARM: dts: imx6qdl: Add reserved memory area for CMA memory

[Fabio Estevam]

Hi Alexander,

On Tue, Aug 27, 2024 at 11:25 AM Alexander Stein
<alexander.stein@xxxxxxxxxxxxxxx> wrote:
>
> Default CMA size is too small for HDMI output and VPU usage. Increase the
> default size by providing a CMA memory area.
....
> +               linux,cma {
> +                       compatible = "shared-dma-pool";
> +                       reusable;
> +                       size = <0x14000000>;

Just curious: how did you calculate that this is a suitable CMA memory
area size?