[PATCH 1/2] drm/amdgpu: do not keep debugfs dentry

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Cleanup unwanted  debugfs dentries.

Signed-off-by: Nirmoy Das <nirmoy.das@xxxxxxx>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu.h         |  4 ---
 drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c | 12 +++-----
 drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c     | 34 ++++++++++-----------
 drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h     |  4 ---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c     |  4 +--
 drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h     |  4 ---
 drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h     |  3 --
 7 files changed, 23 insertions(+), 42 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index e0c797a5f739..e3d4d2dcb3a0 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -797,10 +797,6 @@ struct amdgpu_device {
 	struct amdgpu_i2c_chan		*i2c_bus[AMDGPU_MAX_I2C_BUS];
 	struct amdgpu_debugfs		debugfs[AMDGPU_DEBUGFS_MAX_COMPONENTS];
 	unsigned			debugfs_count;
-#if defined(CONFIG_DEBUG_FS)
-	struct dentry                   *debugfs_preempt;
-	struct dentry			*debugfs_regs[AMDGPU_DEBUGFS_MAX_COMPONENTS];
-#endif
 	struct amdgpu_atif		*atif;
 	struct amdgpu_atcs		atcs;
 	struct mutex			srbm_mutex;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
index 4c38c5771cbc..874522217b7c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
@@ -1228,7 +1228,6 @@ int amdgpu_debugfs_regs_init(struct amdgpu_device *adev)
 					  adev, debugfs_regs[i]);
 		if (!i && !IS_ERR_OR_NULL(ent))
 			i_size_write(ent->d_inode, adev->rmmio_size);
-		adev->debugfs_regs[i] = ent;
 	}
 
 	return 0;
@@ -1592,21 +1591,20 @@ DEFINE_SIMPLE_ATTRIBUTE(fops_sclk_set, NULL,
 int amdgpu_debugfs_init(struct amdgpu_device *adev)
 {
 	int r, i;
+	struct dentry *ent = NULL;
 
-	adev->debugfs_preempt =
-		debugfs_create_file("amdgpu_preempt_ib", 0600,
+	ent = debugfs_create_file("amdgpu_preempt_ib", 0600,
 				    adev_to_drm(adev)->primary->debugfs_root, adev,
 				    &fops_ib_preempt);
-	if (!(adev->debugfs_preempt)) {
+	if (!ent) {
 		DRM_ERROR("unable to create amdgpu_preempt_ib debugsfs file\n");
 		return -EIO;
 	}
 
-	adev->smu.debugfs_sclk =
-		debugfs_create_file("amdgpu_force_sclk", 0200,
+	ent = debugfs_create_file("amdgpu_force_sclk", 0200,
 				    adev_to_drm(adev)->primary->debugfs_root, adev,
 				    &fops_sclk_set);
-	if (!(adev->smu.debugfs_sclk)) {
+	if (!ent) {
 		DRM_ERROR("unable to create amdgpu_set_sclk debugsfs file\n");
 		return -EIO;
 	}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
index 1fb2a91ad30a..1efdfb9b5506 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
@@ -1137,15 +1137,16 @@ static int amdgpu_ras_sysfs_remove_all(struct amdgpu_device *adev)
  *
  */
 /* debugfs begin */
-static void amdgpu_ras_debugfs_create_ctrl_node(struct amdgpu_device *adev)
+static void amdgpu_ras_debugfs_create_ctrl_node(struct amdgpu_device *adev,
+						struct dentry *dir)
 {
 	struct amdgpu_ras *con = amdgpu_ras_get_context(adev);
 	struct drm_minor *minor = adev_to_drm(adev)->primary;
 
-	con->dir = debugfs_create_dir(RAS_FS_NAME, minor->debugfs_root);
-	debugfs_create_file("ras_ctrl", S_IWUGO | S_IRUGO, con->dir,
+	dir = debugfs_create_dir(RAS_FS_NAME, minor->debugfs_root);
+	debugfs_create_file("ras_ctrl", S_IWUGO | S_IRUGO, dir,
 				adev, &amdgpu_ras_debugfs_ctrl_ops);
-	debugfs_create_file("ras_eeprom_reset", S_IWUGO | S_IRUGO, con->dir,
+	debugfs_create_file("ras_eeprom_reset", S_IWUGO | S_IRUGO, dir,
 				adev, &amdgpu_ras_debugfs_eeprom_ops);
 
 	/*
@@ -1156,7 +1157,7 @@ static void amdgpu_ras_debugfs_create_ctrl_node(struct amdgpu_device *adev)
 	 * ERREVENT_ATHUB_INTERRUPT generated. Normal GPU recovery routine
 	 * will never be called.
 	 */
-	debugfs_create_bool("auto_reboot", S_IWUGO | S_IRUGO, con->dir,
+	debugfs_create_bool("auto_reboot", S_IWUGO | S_IRUGO, dir,
 				&con->reboot);
 
 	/*
@@ -1164,16 +1165,16 @@ static void amdgpu_ras_debugfs_create_ctrl_node(struct amdgpu_device *adev)
 	 * of RAS IPs during ras recovery.
 	 */
 	debugfs_create_bool("disable_ras_err_cnt_harvest", 0644,
-			con->dir, &con->disable_ras_err_cnt_harvest);
+			dir, &con->disable_ras_err_cnt_harvest);
 }
 
 static void amdgpu_ras_debugfs_create(struct amdgpu_device *adev,
-		struct ras_fs_if *head)
+				      struct ras_fs_if *head,
+				      struct dentry *dir)
 {
-	struct amdgpu_ras *con = amdgpu_ras_get_context(adev);
 	struct ras_manager *obj = amdgpu_ras_find_obj(adev, &head->head);
 
-	if (!obj || obj->ent)
+	if (!obj || !dir)
 		return;
 
 	get_obj(obj);
@@ -1182,9 +1183,8 @@ static void amdgpu_ras_debugfs_create(struct amdgpu_device *adev,
 			head->debugfs_name,
 			sizeof(obj->fs_data.debugfs_name));
 
-	obj->ent = debugfs_create_file(obj->fs_data.debugfs_name,
-				       S_IWUGO | S_IRUGO, con->dir, obj,
-				       &amdgpu_ras_debugfs_ops);
+	debugfs_create_file(obj->fs_data.debugfs_name, S_IWUGO | S_IRUGO, dir,
+			    obj, &amdgpu_ras_debugfs_ops);
 }
 
 void amdgpu_ras_debugfs_create_all(struct amdgpu_device *adev)
@@ -1192,6 +1192,7 @@ void amdgpu_ras_debugfs_create_all(struct amdgpu_device *adev)
 	struct amdgpu_ras *con = amdgpu_ras_get_context(adev);
 	struct ras_manager *obj;
 	struct ras_fs_if fs_info;
+	struct dentry *dir = NULL;
 
 	/*
 	 * it won't be called in resume path, no need to check
@@ -1200,7 +1201,7 @@ void amdgpu_ras_debugfs_create_all(struct amdgpu_device *adev)
 	if (!IS_ENABLED(CONFIG_DEBUG_FS) || !con)
 		return;
 
-	amdgpu_ras_debugfs_create_ctrl_node(adev);
+	amdgpu_ras_debugfs_create_ctrl_node(adev, dir);
 
 	list_for_each_entry(obj, &con->head, node) {
 		if (amdgpu_ras_is_supported(adev, obj->head.block) &&
@@ -1208,7 +1209,7 @@ void amdgpu_ras_debugfs_create_all(struct amdgpu_device *adev)
 			sprintf(fs_info.debugfs_name, "%s_err_inject",
 					ras_block_str(obj->head.block));
 			fs_info.head = obj->head;
-			amdgpu_ras_debugfs_create(adev, &fs_info);
+			amdgpu_ras_debugfs_create(adev, &fs_info, dir);
 		}
 	}
 }
@@ -1218,10 +1219,9 @@ static void amdgpu_ras_debugfs_remove(struct amdgpu_device *adev,
 {
 	struct ras_manager *obj = amdgpu_ras_find_obj(adev, head);
 
-	if (!obj || !obj->ent)
+	if (!obj)
 		return;
 
-	obj->ent = NULL;
 	put_obj(obj);
 }
 
@@ -1233,8 +1233,6 @@ static void amdgpu_ras_debugfs_remove_all(struct amdgpu_device *adev)
 	list_for_each_entry_safe(obj, tmp, &con->head, node) {
 		amdgpu_ras_debugfs_remove(adev, &obj->head);
 	}
-
-	con->dir = NULL;
 }
 /* debugfs end */
 
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h
index 762f5e46c007..aed0716efa5a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h
@@ -318,8 +318,6 @@ struct amdgpu_ras {
 	uint32_t supported;
 	uint32_t features;
 	struct list_head head;
-	/* debugfs */
-	struct dentry *dir;
 	/* sysfs */
 	struct device_attribute features_attr;
 	struct bin_attribute badpages_attr;
@@ -395,8 +393,6 @@ struct ras_manager {
 	struct list_head node;
 	/* the device */
 	struct amdgpu_device *adev;
-	/* debugfs */
-	struct dentry *ent;
 	/* sysfs */
 	struct device_attribute sysfs_attr;
 	int attr_inuse;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index aaad9e304ad9..f4d7cf60c262 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -1788,7 +1788,7 @@ static void amdgpu_ttm_training_data_block_init(struct amdgpu_device *adev)
 		(adev->gmc.mc_vram_size - GDDR6_MEM_TRAINING_OFFSET);
 	ctx->train_data_size =
 		GDDR6_MEM_TRAINING_DATA_SIZE_IN_BYTES;
-	
+
 	DRM_DEBUG("train_data_size:%llx,p2c_train_data_offset:%llx,c2p_train_data_offset:%llx.\n",
 			ctx->train_data_size,
 			ctx->p2c_train_data_offset,
@@ -2560,11 +2560,11 @@ int amdgpu_ttm_debugfs_init(struct amdgpu_device *adev)
 				ttm_debugfs_entries[count].fops);
 		if (IS_ERR(ent))
 			return PTR_ERR(ent);
+
 		if (ttm_debugfs_entries[count].domain == TTM_PL_VRAM)
 			i_size_write(ent->d_inode, adev->gmc.mc_vram_size);
 		else if (ttm_debugfs_entries[count].domain == TTM_PL_TT)
 			i_size_write(ent->d_inode, adev->gmc.gart_size);
-		adev->mman.debugfs_entries[count] = ent;
 	}
 
 	count = ARRAY_SIZE(amdgpu_ttm_debugfs_list);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h
index 6c142455fc66..4df4cf2fd4dd 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h
@@ -68,10 +68,6 @@ struct amdgpu_mman {
 	bool				initialized;
 	void __iomem			*aper_base_kaddr;
 
-#if defined(CONFIG_DEBUG_FS)
-	struct dentry			*debugfs_entries[8];
-#endif
-
 	/* buffer handling */
 	const struct amdgpu_buffer_funcs	*buffer_funcs;
 	struct amdgpu_ring			*buffer_funcs_ring;
diff --git a/drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h
index 10b0624ade65..83147b7d836e 100644
--- a/drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h
+++ b/drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h
@@ -439,9 +439,6 @@ struct smu_context
 	struct smu_baco_context		smu_baco;
 	struct smu_temperature_range	thermal_range;
 	void *od_settings;
-#if defined(CONFIG_DEBUG_FS)
-	struct dentry                   *debugfs_sclk;
-#endif
 
 	struct smu_umd_pstate_table	pstate_table;
 	uint32_t pstate_sclk;
-- 
2.30.0

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