Re: [PATCH v6 11/14] media: iris: Add support to select core for dual core platforms

[Dmitry Baryshkov]

On Fri, May 15, 2026 at 04:51:26PM +0530, Vishnu Reddy wrote:
> On platforms with two video codec cores, select the hardware core for
> a new session based on the current Macroblocks Per Frame (MBPF) and
> Macroblocks Per Second (MBPS) load on each core. The selected core is
> communicated to the firmware via the HFI_PROP_CORE_ID property at
> stream-on time.
> 
> Since both cores share the same clock source, the required clock
> frequency is the maximum of the aggregated frequencies across both
> cores.
> 
> The total session count limit is scaled by the number of cores, since
> each core independently supports sessions up to its own limit.
> 
> Signed-off-by: Vishnu Reddy <busanna.reddy@xxxxxxxxxxxxxxxx>
> ---
>  drivers/media/platform/qcom/iris/iris_common.c     | 10 ++++
>  drivers/media/platform/qcom/iris/iris_common.h     |  1 +
>  drivers/media/platform/qcom/iris/iris_core.h       |  5 ++
>  drivers/media/platform/qcom/iris/iris_hfi_common.h |  1 +
>  .../platform/qcom/iris/iris_hfi_gen2_command.c     | 19 +++++++
>  .../platform/qcom/iris/iris_hfi_gen2_defines.h     |  1 +
>  drivers/media/platform/qcom/iris/iris_instance.h   |  2 +
>  .../platform/qcom/iris/iris_platform_common.h      |  1 +
>  drivers/media/platform/qcom/iris/iris_power.c      | 20 +++++--
>  drivers/media/platform/qcom/iris/iris_utils.c      | 58 +++++++++++++-------
>  drivers/media/platform/qcom/iris/iris_utils.h      |  3 +-
>  drivers/media/platform/qcom/iris/iris_vb2.c        |  4 ++
>  drivers/media/platform/qcom/iris/iris_vidc.c       |  7 ++-
>  drivers/media/platform/qcom/iris/iris_vpu3x.c      | 63 ++++++++++++++++++++++
>  drivers/media/platform/qcom/iris/iris_vpu_common.h |  2 +
>  15 files changed, 173 insertions(+), 24 deletions(-)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxxxxxxxx>


-- 
With best wishes
Dmitry