drm/xe/mocs: Check if all domains awake

Check if all domains are awake specially for
LNCF regs

Fixes: 298661cd9cea ("drm/xe: Fix MOCS debugfs LNCF readout")
Improvements-suggested-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
Reviewed-by: Badal Nilawar <badal.nilawar@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250506142300.1865783-1-tejas.upadhyay@intel.com
Signed-off-by: Tejas Upadhyay <tejas.upadhyay@intel.com>
(cherry picked from commit a383cf218ef8bb35d4c03958bd956573b65cf778)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>

diff --git a/drivers/gpu/drm/xe/xe_mocs.c b/drivers/gpu/drm/xe/xe_mocs.c
index 31dade91a089741e40ee1310da4d4486ad330f5c..0c737413fcb68d0e59a575db62a38c4fdb7b13f0 100644 (file)
--- a/drivers/gpu/drm/xe/xe_mocs.c
+++ b/drivers/gpu/drm/xe/xe_mocs.c
@@ -775,22 +775,23 @@ void xe_mocs_init(struct xe_gt *gt)
 void xe_mocs_dump(struct xe_gt *gt, struct drm_printer *p)
 {
        struct xe_device *xe = gt_to_xe(gt);
+       enum xe_force_wake_domains domain;
        struct xe_mocs_info table;
        unsigned int fw_ref, flags;
 
        flags = get_mocs_settings(xe, &table);
 
+       domain = flags & HAS_LNCF_MOCS ? XE_FORCEWAKE_ALL : XE_FW_GT;
        xe_pm_runtime_get_noresume(xe);
-       fw_ref = xe_force_wake_get(gt_to_fw(gt),
-                                  flags & HAS_LNCF_MOCS ?
-                                  XE_FORCEWAKE_ALL : XE_FW_GT);
-       if (!fw_ref)
+       fw_ref = xe_force_wake_get(gt_to_fw(gt), domain);
+
+       if (!xe_force_wake_ref_has_domain(fw_ref, domain))
                goto err_fw;
 
        table.ops->dump(&table, flags, gt, p);
 
-       xe_force_wake_put(gt_to_fw(gt), fw_ref);
 err_fw:
+       xe_force_wake_put(gt_to_fw(gt), fw_ref);
        xe_pm_runtime_put(xe);
 }