drm/xe/pf: Allow to control scheduling priority using debugfs

Add 'sched_priority' attribute that will represents the scheduling
prority of the VF or PF. Values {0,1,2} correspond to priorities
{LOW,NORMAL,HIGH} respectively.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Lukasz Laguna <lukasz.laguna@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241106151301.2079-5-michal.wajdeczko@intel.com

diff --git a/drivers/gpu/drm/xe/xe_gt_sriov_pf_debugfs.c b/drivers/gpu/drm/xe/xe_gt_sriov_pf_debugfs.c
index 05df4ab..b2521dd 100644 (file)
--- a/drivers/gpu/drm/xe/xe_gt_sriov_pf_debugfs.c
+++ b/drivers/gpu/drm/xe/xe_gt_sriov_pf_debugfs.c
@@ -164,6 +164,7 @@ static void pf_add_policy_attrs(struct xe_gt *gt, struct dentry *parent)
  *      │   │   ├── contexts_spare
  *      │   │   ├── exec_quantum_ms
  *      │   │   ├── preempt_timeout_us
+ *      │   │   ├── sched_priority
  *      │   ├── vf1
  *      │   │   ├── ggtt_quota
  *      │   │   ├── lmem_quota
@@ -171,6 +172,7 @@ static void pf_add_policy_attrs(struct xe_gt *gt, struct dentry *parent)
  *      │   │   ├── contexts_quota
  *      │   │   ├── exec_quantum_ms
  *      │   │   ├── preempt_timeout_us
+ *      │   │   ├── sched_priority
  */
 
 #define DEFINE_SRIOV_GT_CONFIG_DEBUGFS_ATTRIBUTE(CONFIG, TYPE, FORMAT)         \
@@ -209,6 +211,7 @@ DEFINE_SRIOV_GT_CONFIG_DEBUGFS_ATTRIBUTE(ctxs, u32, "%llu\n");
 DEFINE_SRIOV_GT_CONFIG_DEBUGFS_ATTRIBUTE(dbs, u32, "%llu\n");
 DEFINE_SRIOV_GT_CONFIG_DEBUGFS_ATTRIBUTE(exec_quantum, u32, "%llu\n");
 DEFINE_SRIOV_GT_CONFIG_DEBUGFS_ATTRIBUTE(preempt_timeout, u32, "%llu\n");
+DEFINE_SRIOV_GT_CONFIG_DEBUGFS_ATTRIBUTE(sched_priority, u32, "%llu\n");
 
 /*
  *      /sys/kernel/debug/dri/0/
@@ -295,6 +298,8 @@ static void pf_add_config_attrs(struct xe_gt *gt, struct dentry *parent, unsigne
                                   &exec_quantum_fops);
        debugfs_create_file_unsafe("preempt_timeout_us", 0644, parent, parent,
                                   &preempt_timeout_fops);
+       debugfs_create_file_unsafe("sched_priority", 0644, parent, parent,
+                                  &sched_priority_fops);
 
        /* register all threshold attributes */
 #define register_threshold_attribute(TAG, NAME, ...) \