drm/xe/vf: Move VF CCS debugfs attribute

The VF CCS handling is per-device so its debugfs file should not
be exposed on per-GT basis. Move it up to the device level.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Satyanarayana K V P <satyanarayana.k.v.p@intel.com>
Reviewed-by: Satyanarayana K V P <satyanarayana.k.v.p@intel.com>
Link: https://lore.kernel.org/r/20250908123025.747-8-michal.wajdeczko@intel.com

6 files changed, 67 insertions, 39 deletions

diff --git a/drivers/gpu/drm/xe/xe_debugfs.c b/drivers/gpu/drm/xe/xe_debugfs.c
index 4b71570529a6..544d7d8460d9 100644
--- a/drivers/gpu/drm/xe/xe_debugfs.c
+++ b/drivers/gpu/drm/xe/xe_debugfs.c
@@ -24,6 +24,7 @@
 #include "xe_pxp_debugfs.h"
 #include "xe_sriov.h"
 #include "xe_sriov_pf.h"
+#include "xe_sriov_vf.h"
 #include "xe_step.h"
 #include "xe_tile_debugfs.h"
 #include "xe_wa.h"
@@ -395,4 +396,6 @@ void xe_debugfs_register(struct xe_device *xe)
 
 	if (IS_SRIOV_PF(xe))
 		xe_sriov_pf_debugfs_register(xe, root);
+	else if (IS_SRIOV_VF(xe))
+		xe_sriov_vf_debugfs_register(xe, root);
 }
diff --git a/drivers/gpu/drm/xe/xe_gt_debugfs.c b/drivers/gpu/drm/xe/xe_gt_debugfs.c
index a9d960de0e5e..f253e2df4907 100644
--- a/drivers/gpu/drm/xe/xe_gt_debugfs.c
+++ b/drivers/gpu/drm/xe/xe_gt_debugfs.c
@@ -124,33 +124,6 @@ static int powergate_info(struct xe_gt *gt, struct drm_printer *p)
 	return ret;
 }
 
-static int sa_info_vf_ccs(struct xe_gt *gt, struct drm_printer *p)
-{
-	struct xe_device *xe = gt_to_xe(gt);
-	struct xe_sa_manager *bb_pool;
-	enum xe_sriov_vf_ccs_rw_ctxs ctx_id;
-
-	if (!IS_VF_CCS_READY(gt_to_xe(gt)))
-		return 0;
-
-	xe_pm_runtime_get(gt_to_xe(gt));
-
-	for_each_ccs_rw_ctx(ctx_id) {
-		bb_pool = xe->sriov.vf.ccs.contexts[ctx_id].mem.ccs_bb_pool;
-		if (!bb_pool)
-			break;
-
-		drm_printf(p, "ccs %s bb suballoc info\n", ctx_id ? "write" : "read");
-		drm_printf(p, "-------------------------\n");
-		drm_suballoc_dump_debug_info(&bb_pool->base, p, xe_sa_manager_gpu_addr(bb_pool));
-		drm_puts(p, "\n");
-	}
-
-	xe_pm_runtime_put(gt_to_xe(gt));
-
-	return 0;
-}
-
 static int topology(struct xe_gt *gt, struct drm_printer *p)
 {
 	xe_pm_runtime_get(gt_to_xe(gt));
@@ -318,13 +291,6 @@ static const struct drm_info_list vf_safe_debugfs_list[] = {
 	{"hwconfig", .show = xe_gt_debugfs_simple_show, .data = hwconfig},
 };
 
-/*
- * only for GT debugfs files which are valid on VF. Not valid on PF.
- */
-static const struct drm_info_list vf_only_debugfs_list[] = {
-	{"sa_info_vf_ccs", .show = xe_gt_debugfs_simple_show, .data = sa_info_vf_ccs},
-};
-
 /* everything else should be added here */
 static const struct drm_info_list pf_only_debugfs_list[] = {
 	{"hw_engines", .show = xe_gt_debugfs_simple_show, .data = hw_engines},
@@ -465,11 +431,6 @@ void xe_gt_debugfs_register(struct xe_gt *gt)
 		drm_debugfs_create_files(pf_only_debugfs_list,
 					 ARRAY_SIZE(pf_only_debugfs_list),
 					 root, minor);
-	else
-		drm_debugfs_create_files(vf_only_debugfs_list,
-					 ARRAY_SIZE(vf_only_debugfs_list),
-					 root, minor);
-
 
 	xe_uc_debugfs_register(&gt->uc, root);
 
diff --git a/drivers/gpu/drm/xe/xe_sriov_vf.c b/drivers/gpu/drm/xe/xe_sriov_vf.c
index cb062328551a..cdd9f8e78b2a 100644
--- a/drivers/gpu/drm/xe/xe_sriov_vf.c
+++ b/drivers/gpu/drm/xe/xe_sriov_vf.c
@@ -3,6 +3,7 @@
  * Copyright © 2023-2024 Intel Corporation
  */
 
+#include <drm/drm_debugfs.h>
 #include <drm/drm_managed.h>
 
 #include "xe_assert.h"
@@ -445,3 +446,30 @@ int xe_sriov_vf_init_late(struct xe_device *xe)
 
 	return err;
 }
+
+static int sa_info_vf_ccs(struct seq_file *m, void *data)
+{
+	struct drm_info_node *node = m->private;
+	struct xe_device *xe = to_xe_device(node->minor->dev);
+	struct drm_printer p = drm_seq_file_printer(m);
+
+	xe_sriov_vf_ccs_print(xe, &p);
+	return 0;
+}
+
+static const struct drm_info_list debugfs_list[] = {
+	{ .name = "sa_info_vf_ccs", .show = sa_info_vf_ccs },
+};
+
+/**
+ * xe_sriov_vf_debugfs_register - Register VF debugfs attributes.
+ * @xe: the &xe_device
+ * @root: the root &dentry
+ *
+ * Prepare debugfs attributes exposed by the VF.
+ */
+void xe_sriov_vf_debugfs_register(struct xe_device *xe, struct dentry *root)
+{
+	drm_debugfs_create_files(debugfs_list, ARRAY_SIZE(debugfs_list),
+				 root, xe->drm.primary);
+}
diff --git a/drivers/gpu/drm/xe/xe_sriov_vf.h b/drivers/gpu/drm/xe/xe_sriov_vf.h
index 3bf3364799ad..9e752105ec2a 100644
--- a/drivers/gpu/drm/xe/xe_sriov_vf.h
+++ b/drivers/gpu/drm/xe/xe_sriov_vf.h
@@ -8,11 +8,13 @@
 
 #include <linux/types.h>
 
+struct dentry;
 struct xe_device;
 
 void xe_sriov_vf_init_early(struct xe_device *xe);
 int xe_sriov_vf_init_late(struct xe_device *xe);
 void xe_sriov_vf_start_migration_recovery(struct xe_device *xe);
 bool xe_sriov_vf_migration_supported(struct xe_device *xe);
+void xe_sriov_vf_debugfs_register(struct xe_device *xe, struct dentry *root);
 
 #endif
diff --git a/drivers/gpu/drm/xe/xe_sriov_vf_ccs.c b/drivers/gpu/drm/xe/xe_sriov_vf_ccs.c
index c5c60f05073d..8dec616c37c9 100644
--- a/drivers/gpu/drm/xe/xe_sriov_vf_ccs.c
+++ b/drivers/gpu/drm/xe/xe_sriov_vf_ccs.c
@@ -13,6 +13,7 @@
 #include "xe_guc_submit.h"
 #include "xe_lrc.h"
 #include "xe_migrate.h"
+#include "xe_pm.h"
 #include "xe_sa.h"
 #include "xe_sriov_printk.h"
 #include "xe_sriov_vf.h"
@@ -376,3 +377,34 @@ int xe_sriov_vf_ccs_detach_bo(struct xe_bo *bo)
 	}
 	return 0;
 }
+
+/**
+ * xe_sriov_vf_ccs_print - Print VF CCS details.
+ * @xe: the &xe_device
+ * @p: the &drm_printer
+ *
+ * This function is for VF use only.
+ */
+void xe_sriov_vf_ccs_print(struct xe_device *xe, struct drm_printer *p)
+{
+	struct xe_sa_manager *bb_pool;
+	enum xe_sriov_vf_ccs_rw_ctxs ctx_id;
+
+	if (!IS_VF_CCS_READY(xe))
+		return;
+
+	xe_pm_runtime_get(xe);
+
+	for_each_ccs_rw_ctx(ctx_id) {
+		bb_pool = xe->sriov.vf.ccs.contexts[ctx_id].mem.ccs_bb_pool;
+		if (!bb_pool)
+			break;
+
+		drm_printf(p, "ccs %s bb suballoc info\n", ctx_id ? "write" : "read");
+		drm_printf(p, "-------------------------\n");
+		drm_suballoc_dump_debug_info(&bb_pool->base, p, xe_sa_manager_gpu_addr(bb_pool));
+		drm_puts(p, "\n");
+	}
+
+	xe_pm_runtime_put(xe);
+}
diff --git a/drivers/gpu/drm/xe/xe_sriov_vf_ccs.h b/drivers/gpu/drm/xe/xe_sriov_vf_ccs.h
index f0e1189b417a..0745c0ff0228 100644
--- a/drivers/gpu/drm/xe/xe_sriov_vf_ccs.h
+++ b/drivers/gpu/drm/xe/xe_sriov_vf_ccs.h
@@ -10,6 +10,7 @@
 #include "xe_sriov.h"
 #include "xe_sriov_vf_ccs_types.h"
 
+struct drm_printer;
 struct xe_device;
 struct xe_bo;
 
@@ -17,6 +18,7 @@ int xe_sriov_vf_ccs_init(struct xe_device *xe);
 int xe_sriov_vf_ccs_attach_bo(struct xe_bo *bo);
 int xe_sriov_vf_ccs_detach_bo(struct xe_bo *bo);
 int xe_sriov_vf_ccs_register_context(struct xe_device *xe);
+void xe_sriov_vf_ccs_print(struct xe_device *xe, struct drm_printer *p);
 
 static inline bool xe_sriov_vf_ccs_ready(struct xe_device *xe)
 {