Re: [PATCH v11 6/9] media: iris: Add support to select core for dual core platforms

[Vikash Garodia]

On 9/17/2026 10:30 AM, 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.
>
> Reviewed-by: Dmitry Baryshkov<dmitry.baryshkov@xxxxxxxxxxxxxxxx>
> 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 +
>   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       |  6 +-
>   drivers/media/platform/qcom/iris/iris_vpu3x.c      | 66 ++++++++++++++++++++++
>   drivers/media/platform/qcom/iris/iris_vpu_common.h |  2 +
>   14 files changed, 174 insertions(+), 24 deletions(-)

Reviewed-by: Vikash Garodia <vikash.garodia@xxxxxxxxxxxxxxxx>