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drm/xe/pf: Allow to change sched_if_idle policy under lock

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In upcoming patch we will need to update sched_if_idle policy when
we already hold the provisioning mutex. Split existing function
into two variants to allow that.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Piotr Piórkowski <piotr.piorkowski@intel.com>
Link: https://patch.msgid.link/20260402191726.4932-10-michal.wajdeczko@intel.com
This commit is contained in:
Michal Wajdeczko 2026-04-02 21:17:22 +02:00
parent 0701bf6fce
commit 55d1945636
2 changed files with 21 additions and 3 deletions
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23
drivers/gpu/drm/xe/xe_gt_sriov_pf_policy.c
View File

@ -192,7 +192,7 @@ static void pf_sanitize_sched_if_idle(struct xe_gt *gt)
}
/**
* xe_gt_sriov_pf_policy_set_sched_if_idle - Control the 'sched_if_idle' policy.
* xe_gt_sriov_pf_policy_set_sched_if_idle_locked() - Control the 'sched_if_idle' policy.
* @gt: the &xe_gt where to apply the policy
* @enable: the value of the 'sched_if_idle' policy
*
@ -200,12 +200,12 @@ static void pf_sanitize_sched_if_idle(struct xe_gt *gt)
*
* Return: 0 on success or a negative error code on failure.
*/
int xe_gt_sriov_pf_policy_set_sched_if_idle(struct xe_gt *gt, bool enable)
int xe_gt_sriov_pf_policy_set_sched_if_idle_locked(struct xe_gt *gt, bool enable)
{
u32 priority;
int err;
guard(mutex)(xe_gt_sriov_pf_master_mutex(gt));
lockdep_assert_held(xe_gt_sriov_pf_master_mutex(gt));
err = pf_provision_sched_if_idle(gt, enable);
if (err)
@ -223,6 +223,23 @@ int xe_gt_sriov_pf_policy_set_sched_if_idle(struct xe_gt *gt, bool enable)
return 0;
}
/**
* xe_gt_sriov_pf_policy_set_sched_if_idle() - Control the 'sched_if_idle' policy.
* @gt: the &xe_gt where to apply the policy
* @enable: the value of the 'sched_if_idle' policy
*
* This function can only be called on PF.
*
* Return: 0 on success or a negative error code on failure.
*/
int xe_gt_sriov_pf_policy_set_sched_if_idle(struct xe_gt *gt, bool enable)
{
xe_gt_assert(gt, IS_SRIOV_PF(gt_to_xe(gt)));
guard(mutex)(xe_gt_sriov_pf_master_mutex(gt));
return xe_gt_sriov_pf_policy_set_sched_if_idle_locked(gt, enable);
}
/**
* xe_gt_sriov_pf_policy_get_sched_if_idle_locked() - Retrieve value of 'sched_if_idle' policy.
* @gt: the &xe_gt where to read the policy from

1
drivers/gpu/drm/xe/xe_gt_sriov_pf_policy.h
View File

@ -14,6 +14,7 @@ struct drm_printer;
struct xe_gt;
int xe_gt_sriov_pf_policy_set_sched_if_idle(struct xe_gt *gt, bool enable);
int xe_gt_sriov_pf_policy_set_sched_if_idle_locked(struct xe_gt *gt, bool enable);
bool xe_gt_sriov_pf_policy_get_sched_if_idle(struct xe_gt *gt);
bool xe_gt_sriov_pf_policy_get_sched_if_idle_locked(struct xe_gt *gt);
int xe_gt_sriov_pf_policy_set_reset_engine(struct xe_gt *gt, bool enable);