Commit f9b982fb authored by Michal Wajdeczko's avatar Michal Wajdeczko
Browse files

drm/xe/pf: Adjust scheduling priority based on policy change 



Local values of scheduling priorities need to be adjusted when
changing the schedule_if_idle policy as those are related.

Disabling schedule_if_idle policy forces the low priority, and
enabling schedule_if_idle policy forces the normal priority.

Signed-off-by: default avatarMichal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: default avatarLukasz Laguna <lukasz.laguna@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241106151301.2079-6-michal.wajdeczko@intel.com
parent 9d6aabe1

drivers/gpu/drm/xe/xe_gt_sriov_pf_policy.c

+22 −3
Original line number Diff line number Diff line
@@ -135,14 +135,33 @@ static int pf_update_policy_u32(struct xe_gt *gt, u16 key, u32 *policy, u32 valu 
	return 0;

}



static void pf_bulk_reset_sched_priority(struct xe_gt *gt, u32 priority)

{

	unsigned int total_vfs = 1 + xe_gt_sriov_pf_get_totalvfs(gt);

	unsigned int n;



	xe_gt_assert(gt, IS_SRIOV_PF(gt_to_xe(gt)));

	lockdep_assert_held(xe_gt_sriov_pf_master_mutex(gt));



	for (n = 0; n < total_vfs; n++)

		gt->sriov.pf.vfs[n].config.sched_priority = priority;

}



static int pf_provision_sched_if_idle(struct xe_gt *gt, bool enable)

{

	int err;



	xe_gt_assert(gt, IS_SRIOV_PF(gt_to_xe(gt)));

	lockdep_assert_held(xe_gt_sriov_pf_master_mutex(gt));



	return pf_update_policy_bool(gt, GUC_KLV_VGT_POLICY_SCHED_IF_IDLE_KEY,

	err = pf_update_policy_bool(gt, GUC_KLV_VGT_POLICY_SCHED_IF_IDLE_KEY,

				    &gt->sriov.pf.policy.guc.sched_if_idle,

				    enable);



	if (!err)

		pf_bulk_reset_sched_priority(gt, enable ? GUC_SCHED_PRIORITY_NORMAL :

					     GUC_SCHED_PRIORITY_LOW);

	return err;

}



static int pf_reprovision_sched_if_idle(struct xe_gt *gt)