drm/xe/guc: Update POLICY_SCHED_IF_IDLE documentation

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>
Link: https://patch.msgid.link/20260402191726.4932-2-michal.wajdeczko@intel.com

diff --git a/drivers/gpu/drm/xe/abi/guc_klvs_abi.h b/drivers/gpu/drm/xe/abi/guc_klvs_abi.h
index f0815500177ba96e719ee9b1cf95ed6019d6bef5..644f5a4226d7e89977c7c31e3b5c4d60dfd9fa70 100644 (file)
--- 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