Hi Benjamin,
On Wed, 2021-02-17 at 09:02 +0100, Benjamin Gaignard wrote:
> Define allocation range for the default CMA region.
>
> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@xxxxxxxxxxxxx>
> Signed-off-by: Ezequiel Garcia <ezequiel@xxxxxxxxxxxxx>
Despite it seems like I signed-off this one...
> Signed-off-by: Adrian Ratiu <adrian.ratiu@xxxxxxxxxxxxx>
> ---
> arch/arm64/boot/dts/freescale/imx8mq-evk.dts | 15 +++++++++++++++
> 1 file changed, 15 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
> index 85b045253a0e..047dfd4a1ffd 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
> +++ b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
> @@ -21,6 +21,21 @@ memory@40000000 {
> reg = <0x00000000 0x40000000 0 0xc0000000>;
> };
>
>
> + resmem: reserved-memory {
> + #address-cells = <2>;
> + #size-cells = <2>;
> + ranges;
> +
> + /* global autoconfigured region for contiguous allocations */
> + linux,cma {
> + compatible = "shared-dma-pool";
> + reusable;
> + size = <0 0x3c000000>;
> + alloc-ranges = <0 0x40000000 0 0x40000000>;
> + linux,cma-default;
> + };
... I'm not a fan of the change :)
Hopefully someone from NXP can provide some insight here?
If it's absolutely needed for the VPU, then I guess it should
be 1) very well documented and 2) moved to the top-lovel dtsi.
But if we can drop it, that'd be nicer.
Thanks,
Ezequiel
