Re: [PATCH 01/13] drm/xe/guc: Update POLICY_SCHED_IF_IDLE documentation

["Piotr Piórkowski" <piotr.piorkowski@intel.com>]

Michal Wajdeczko <michal.wajdeczko@intel.com> wrote on pon [2026-mar-30 22:40:32 +0200]:
> Starting from the GuC firmware version 70.12.0 the meaning of the
> POLICY_SCHED_IF_IDLE has changed, which now acts as a bulk update
> of the VF_CFG_SCHED_PRIORITY configurations of all VFs.
> 
> Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Piotr Piórkowski <piotr.piorkowski@intel.com>
> ---
>  drivers/gpu/drm/xe/abi/guc_klvs_abi.h | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/drivers/gpu/drm/xe/abi/guc_klvs_abi.h b/drivers/gpu/drm/xe/abi/guc_klvs_abi.h
> index e33bd622ab44..7106fad7beef 100644
> --- a/drivers/gpu/drm/xe/abi/guc_klvs_abi.h
> +++ b/drivers/gpu/drm/xe/abi/guc_klvs_abi.h
> @@ -192,6 +192,13 @@ enum  {
>   * `GuC KLV`_ keys available for use with PF2GUC_UPDATE_VGT_POLICY.
>   *
>   * _`GUC_KLV_VGT_POLICY_SCHED_IF_IDLE` : 0x8001
> + *      [From 70.12.0]
> + *      This config allows to update scheduling priority of PF and all VFs at once.
> + *      Setting this policy to 0 updates all VFs scheduling priorities to LOW, and
> + *      setting this policy to 1 updates all VFs scheduling priorities to NORMAL.
> + *      Those changes will take effect on the next VF-Switch event.
> + *
> + *      [Before 70.12.0]
>   *      This config sets whether strict scheduling is enabled whereby any VF
>   *      that doesn’t have work to submit is still allocated a fixed execution
>   *      time-slice to ensure active VFs execution is always consistent even
> -- 
> 2.47.1
> 

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