[PATCH RFC 03/13] drm/msm: look for lpac from dts

Dmitry Baryshkov dmitry.baryshkov at oss.qualcomm.com
Mon Jul 6 08:04:44 PDT 2026


On Sun, Jul 05, 2026 at 09:13:37PM +0200, Anna Maniscalco wrote:
> In order to associate the SID used by LPAC to it's own domain and
> context bank we need a separate node on the DTS.

Can we use iommu-map instead of adding a new device using the same
addresses? You provide zero explanations, but it seems like you are
trying to separate a part of the GPU into a separate device, but it's
unnecessary.

> 
> Add the code to look up that node on initialization.
> 
> Signed-off-by: Anna Maniscalco <anna.maniscalco2000 at gmail.com>
> ---
>  drivers/gpu/drm/msm/adreno/adreno_gpu.c | 21 ++++++++++++++++++++-
>  drivers/gpu/drm/msm/msm_gpu.h           |  1 +
>  2 files changed, 21 insertions(+), 1 deletion(-)
> 

-- 
With best wishes
Dmitry



More information about the linux-arm-kernel mailing list