Re: [PATCH 0/2] Add 48-bit DMA mask for TI K3 remoteproc devices

[Mathieu Poirier]

On Mon, 27 Jul 2026 at 00:29, Beleswar Padhi <b-padhi@xxxxxx> wrote:
>
> The TI K3 R5F and C6x cores can address 48-bit memory space through the
> Region Address Translator (RAT) unit. Whereas the TI K3 C7x has a native
> 48-bit address bus. RAT is usually programmed from the firmware itself.
> Configure the remoteproc device DMA mask to 48 bits to enable full
> addressing capability for DMA operations.
>
> Testing done:
> 1. Verified above devices are able to access 48-bit addresses with
>    compatible firmware.
> 2. Verified IPC with Cortex-R5F and C7x DSPs on TI J784S4 EVM.
> 3. Verified none of the patch generate any new warning/errors.
>
> Thanks,
> Beleswar
>
> Rahul T R (2):
>   remoteproc: k3-r5: Set a 48-bit DMA mask for remoteproc device
>   remoteproc: k3-dsp: Set a 48-bit DMA mask for remoteproc device
>
>  drivers/remoteproc/ti_k3_dsp_remoteproc.c | 4 ++++
>  drivers/remoteproc/ti_k3_r5_remoteproc.c  | 4 ++++
>  2 files changed, 8 insertions(+)
>

I'll apply this when rc1 comes out.

Thanks,
Mathieu

> --
> 2.34.1
>