[PATCH 3/3] arm64: dts: ti: k3-am62p5-sk: Reserve 576 MiB of global CMA

[Devarsh Thakkar]

Hi Vignesh,

On 14/06/24 22:34, Brandon Brnich wrote:
[..]

>> diff --git a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
>> index fb980d46e304..5ef74d9f8eea 100644
>> --- a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
>> +++ b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
>> @@ -48,6 +48,13 @@ reserved-memory {
>>  		#size-cells = <2>;
>>  		ranges;
>>  
>> +		linux,cma {
>> +			compatible = "shared-dma-pool";
>> +			reusable;
>> +			size = <0x00 0x24000000>;
>> +			linux,cma-default;
>> +		};
> 
> Since AM62p has 8gb memory, this allocation can come from upper portion.
> Doing so breaks Wave5 encoding/decoding as the driver can not yet handle
> 48 bit addressing. 48bit support is scheduled to be upstreamed, but unsure of
> when this will actually make it in.  
> 
> Could we force this into lower 32bits using same
> alloc-ranges as done in your AM62a patch[0]?
> 


I would like to take a look at this separately, is it possible for you
to drop this patch [3/3] from series due to above comments and take the
rest two from the series ?

Regards
Devarsh