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Message-Id: <20200513114130.28641-3-wambui.karugax@gmail.com>
Date: Wed, 13 May 2020 14:41:28 +0300
From: Wambui Karuga <wambui.karugax@...il.com>
To: maarten.lankhorst@...ux.intel.com, mripard@...nel.org,
tzimmermann@...e.de, airlied@...ux.ie, daniel@...ll.ch
Cc: dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [RFC PATCH 2/3] drm/vc4: use new debugfs functions for file creation.
Currently, vc4 delays adding of debugfs files until drm_dev_register()
calls vc4_debugfs_init() on each registered minor.
This change removes this infrastructure and uses the new
drm_debugfs_add_file() function and drm_device->debugfs_list to track
debugfs files which are added at drm_dev_register() time on each minor.
Signed-off-by: Wambui Karuga <wambui.karugax@...il.com>
---
drivers/gpu/drm/vc4/vc4_bo.c | 4 ++--
drivers/gpu/drm/vc4/vc4_debugfs.c | 38 +++++++------------------------
drivers/gpu/drm/vc4/vc4_hdmi.c | 4 ++--
drivers/gpu/drm/vc4/vc4_hvs.c | 4 ++--
drivers/gpu/drm/vc4/vc4_v3d.c | 4 ++--
5 files changed, 16 insertions(+), 38 deletions(-)
diff --git a/drivers/gpu/drm/vc4/vc4_bo.c b/drivers/gpu/drm/vc4/vc4_bo.c
index 72d30d90b856..ff332bac25d1 100644
--- a/drivers/gpu/drm/vc4/vc4_bo.c
+++ b/drivers/gpu/drm/vc4/vc4_bo.c
@@ -65,8 +65,8 @@ static void vc4_bo_stats_print(struct drm_printer *p, struct vc4_dev *vc4)
static int vc4_bo_stats_debugfs(struct seq_file *m, void *unused)
{
- struct drm_info_node *node = (struct drm_info_node *)m->private;
- struct drm_device *dev = node->minor->dev;
+ struct drm_simple_info_entry *entry = m->private;
+ struct drm_device *dev = entry->dev;
struct vc4_dev *vc4 = to_vc4_dev(dev);
struct drm_printer p = drm_seq_file_printer(m);
diff --git a/drivers/gpu/drm/vc4/vc4_debugfs.c b/drivers/gpu/drm/vc4/vc4_debugfs.c
index 4fbbf980a299..e31e400c8cfc 100644
--- a/drivers/gpu/drm/vc4/vc4_debugfs.c
+++ b/drivers/gpu/drm/vc4/vc4_debugfs.c
@@ -11,10 +11,6 @@
#include "vc4_drv.h"
#include "vc4_regs.h"
-struct vc4_debugfs_info_entry {
- struct list_head link;
- struct drm_info_list info;
-};
/**
* Called at drm_dev_register() time on each of the minors registered
@@ -24,21 +20,15 @@ void
vc4_debugfs_init(struct drm_minor *minor)
{
struct vc4_dev *vc4 = to_vc4_dev(minor->dev);
- struct vc4_debugfs_info_entry *entry;
debugfs_create_bool("hvs_load_tracker", S_IRUGO | S_IWUSR,
minor->debugfs_root, &vc4->load_tracker_enabled);
-
- list_for_each_entry(entry, &vc4->debugfs_list, link) {
- drm_debugfs_create_files(&entry->info, 1,
- minor->debugfs_root, minor);
- }
}
static int vc4_debugfs_regset32(struct seq_file *m, void *unused)
{
- struct drm_info_node *node = (struct drm_info_node *)m->private;
- struct debugfs_regset32 *regset = node->info_ent->data;
+ struct drm_simple_info_entry *entry = m->private;
+ struct debugfs_regset32 *regset = entry->file.data;
struct drm_printer p = drm_seq_file_printer(m);
drm_print_regset32(&p, regset);
@@ -49,30 +39,18 @@ static int vc4_debugfs_regset32(struct seq_file *m, void *unused)
/**
* Registers a debugfs file with a callback function for a vc4 component.
*
- * This is like drm_debugfs_create_files(), but that can only be
- * called a given DRM minor, while the various VC4 components want to
- * register their debugfs files during the component bind process. We
- * track the request and delay it to be called on each minor during
- * vc4_debugfs_init().
+ * Various VC4 functions will register their debugfs files during the
+ * component bind process using drm_debugfs_add_file().
+ * These requests are tracked and delayed until their called on each
+ * minor during drm_dev_register().
+ *
*/
void vc4_debugfs_add_file(struct drm_device *dev,
const char *name,
int (*show)(struct seq_file*, void*),
void *data)
{
- struct vc4_dev *vc4 = to_vc4_dev(dev);
-
- struct vc4_debugfs_info_entry *entry =
- devm_kzalloc(dev->dev, sizeof(*entry), GFP_KERNEL);
-
- if (!entry)
- return;
-
- entry->info.name = name;
- entry->info.show = show;
- entry->info.data = data;
-
- list_add(&entry->link, &vc4->debugfs_list);
+ drm_debugfs_add_file(dev, name, show, data);
}
void vc4_debugfs_add_regset32(struct drm_device *drm,
diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index 625bfcf52dc4..05b2a3161148 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -182,8 +182,8 @@ static const struct debugfs_reg32 hd_regs[] = {
static int vc4_hdmi_debugfs_regs(struct seq_file *m, void *unused)
{
- struct drm_info_node *node = (struct drm_info_node *)m->private;
- struct drm_device *dev = node->minor->dev;
+ struct drm_simple_info_entry *entry = m->private;
+ struct drm_device *dev = entry->dev;
struct vc4_dev *vc4 = to_vc4_dev(dev);
struct vc4_hdmi *hdmi = vc4->hdmi;
struct drm_printer p = drm_seq_file_printer(m);
diff --git a/drivers/gpu/drm/vc4/vc4_hvs.c b/drivers/gpu/drm/vc4/vc4_hvs.c
index 5a43659da319..4c254c027649 100644
--- a/drivers/gpu/drm/vc4/vc4_hvs.c
+++ b/drivers/gpu/drm/vc4/vc4_hvs.c
@@ -82,8 +82,8 @@ void vc4_hvs_dump_state(struct drm_device *dev)
static int vc4_hvs_debugfs_underrun(struct seq_file *m, void *data)
{
- struct drm_info_node *node = m->private;
- struct drm_device *dev = node->minor->dev;
+ struct drm_simple_info_entry *entry = m->private;
+ struct drm_device *dev = entry->dev;
struct vc4_dev *vc4 = to_vc4_dev(dev);
struct drm_printer p = drm_seq_file_printer(m);
diff --git a/drivers/gpu/drm/vc4/vc4_v3d.c b/drivers/gpu/drm/vc4/vc4_v3d.c
index cea77a21b205..cdef61666c42 100644
--- a/drivers/gpu/drm/vc4/vc4_v3d.c
+++ b/drivers/gpu/drm/vc4/vc4_v3d.c
@@ -98,8 +98,8 @@ static const struct debugfs_reg32 v3d_regs[] = {
static int vc4_v3d_debugfs_ident(struct seq_file *m, void *unused)
{
- struct drm_info_node *node = (struct drm_info_node *)m->private;
- struct drm_device *dev = node->minor->dev;
+ struct drm_simple_info_entry *entry = m->private;
+ struct drm_device *dev = entry->dev;
struct vc4_dev *vc4 = to_vc4_dev(dev);
int ret = vc4_v3d_pm_get(vc4);
--
2.26.2
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