diff options
| -rw-r--r-- | drivers/gpu/drm/xe/xe_sriov_pf_provision.c | 93 | ||||
| -rw-r--r-- | drivers/gpu/drm/xe/xe_sriov_pf_provision.h | 4 |
2 files changed, 97 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/xe_sriov_pf_provision.c b/drivers/gpu/drm/xe/xe_sriov_pf_provision.c index 0f5bcc076b78..01470c42e8a7 100644 --- a/drivers/gpu/drm/xe/xe_sriov_pf_provision.c +++ b/drivers/gpu/drm/xe/xe_sriov_pf_provision.c @@ -6,6 +6,7 @@ #include "xe_assert.h" #include "xe_device.h" #include "xe_gt_sriov_pf_config.h" +#include "xe_gt_sriov_pf_policy.h" #include "xe_sriov.h" #include "xe_sriov_pf_helpers.h" #include "xe_sriov_pf_provision.h" @@ -343,3 +344,95 @@ int xe_sriov_pf_provision_query_vf_pt(struct xe_device *xe, unsigned int vfid, u return !count ? -ENODATA : 0; } + +/** + * xe_sriov_pf_provision_bulk_apply_priority() - Change scheduling priority of all VFs and PF. + * @xe: the PF &xe_device + * @prio: scheduling priority to set + * + * Change the scheduling priority provisioning on all tiles/GTs. + * + * This function can only be called on PF. + * + * Return: 0 on success or a negative error code on failure. + */ +int xe_sriov_pf_provision_bulk_apply_priority(struct xe_device *xe, u32 prio) +{ + bool sched_if_idle; + struct xe_gt *gt; + unsigned int id; + int result = 0; + int err; + + /* + * Currently, priority changes that involves VFs are only allowed using + * the 'sched_if_idle' policy KLV, so only LOW and NORMAL are supported. + */ + xe_assert(xe, prio < GUC_SCHED_PRIORITY_HIGH); + sched_if_idle = prio == GUC_SCHED_PRIORITY_NORMAL; + + for_each_gt(gt, xe, id) { + err = xe_gt_sriov_pf_policy_set_sched_if_idle(gt, sched_if_idle); + result = result ?: err; + } + + return result; +} + +/** + * xe_sriov_pf_provision_apply_vf_priority() - Change VF's scheduling priority. + * @xe: the PF &xe_device + * @vfid: the VF identifier + * @prio: scheduling priority to set + * + * Change VF's scheduling priority provisioning on all tiles/GTs. + * + * This function can only be called on PF. + * + * Return: 0 on success or a negative error code on failure. + */ +int xe_sriov_pf_provision_apply_vf_priority(struct xe_device *xe, unsigned int vfid, u32 prio) +{ + struct xe_gt *gt; + unsigned int id; + int result = 0; + int err; + + for_each_gt(gt, xe, id) { + err = xe_gt_sriov_pf_config_set_sched_priority(gt, vfid, prio); + result = result ?: err; + } + + return result; +} + +/** + * xe_sriov_pf_provision_query_vf_priority() - Query VF's scheduling priority. + * @xe: the PF &xe_device + * @vfid: the VF identifier + * @prio: placeholder for the returned scheduling priority + * + * Query VF's scheduling priority provisioning from all tiles/GTs. + * If values across tiles/GTs are inconsistent then -EUCLEAN error will be returned. + * + * This function can only be called on PF. + * + * Return: 0 on success or a negative error code on failure. + */ +int xe_sriov_pf_provision_query_vf_priority(struct xe_device *xe, unsigned int vfid, u32 *prio) +{ + struct xe_gt *gt; + unsigned int id; + int count = 0; + u32 value; + + for_each_gt(gt, xe, id) { + value = xe_gt_sriov_pf_config_get_sched_priority(gt, vfid); + if (!count++) + *prio = value; + else if (value != *prio) + return pf_report_unclean(gt, vfid, "priority", value, *prio); + } + + return !count ? -ENODATA : 0; +} diff --git a/drivers/gpu/drm/xe/xe_sriov_pf_provision.h b/drivers/gpu/drm/xe/xe_sriov_pf_provision.h index aa8a95b1c0be..bccf23d51396 100644 --- a/drivers/gpu/drm/xe/xe_sriov_pf_provision.h +++ b/drivers/gpu/drm/xe/xe_sriov_pf_provision.h @@ -20,6 +20,10 @@ int xe_sriov_pf_provision_bulk_apply_pt(struct xe_device *xe, u32 pt); int xe_sriov_pf_provision_apply_vf_pt(struct xe_device *xe, unsigned int vfid, u32 pt); int xe_sriov_pf_provision_query_vf_pt(struct xe_device *xe, unsigned int vfid, u32 *pt); +int xe_sriov_pf_provision_bulk_apply_priority(struct xe_device *xe, u32 prio); +int xe_sriov_pf_provision_apply_vf_priority(struct xe_device *xe, unsigned int vfid, u32 prio); +int xe_sriov_pf_provision_query_vf_priority(struct xe_device *xe, unsigned int vfid, u32 *prio); + int xe_sriov_pf_provision_vfs(struct xe_device *xe, unsigned int num_vfs); int xe_sriov_pf_unprovision_vfs(struct xe_device *xe, unsigned int num_vfs); |