@@ -79,29 +79,33 @@ static const struct drm_info_list accel_debugfs_list[] = {
#define ACCEL_DEBUGFS_ENTRIES ARRAY_SIZE(accel_debugfs_list)
/**
- * accel_debugfs_init() - Initialize debugfs for accel minor
+ * accel_debugfs_init() - Register debugfs for accel minor
+ * @dev: Pointer to the device instance.
+ *
+ * This function creates a root directory for the device in debugfs.
+ */
+void accel_debugfs_init(struct drm_device *dev)
+{
+ drm_debugfs_dev_init(dev, accel_debugfs_root);
+}
+
+/**
+ * accel_debugfs_register() - Register debugfs for device
* @minor: Pointer to the drm_minor instance.
* @minor_id: The minor's id
*
- * This function initializes the drm minor's debugfs members and creates
- * a root directory for the minor in debugfs. It also creates common files
- * for accelerators and calls the driver's debugfs init callback.
+ * Creates common files for accelerators.
*/
-void accel_debugfs_init(struct drm_minor *minor, int minor_id)
+void accel_debugfs_register(struct drm_device *dev)
{
- struct drm_device *dev = minor->dev;
- char name[64];
+ struct drm_minor *minor = dev->accel;
INIT_LIST_HEAD(&minor->debugfs_list);
mutex_init(&minor->debugfs_lock);
- sprintf(name, "%d", minor_id);
- minor->debugfs_root = debugfs_create_dir(name, accel_debugfs_root);
+ minor->debugfs_root = dev->debugfs_root;
drm_debugfs_create_files(accel_debugfs_list, ACCEL_DEBUGFS_ENTRIES,
- minor->debugfs_root, minor);
-
- if (dev->driver->debugfs_init)
- dev->driver->debugfs_init(minor);
+ dev->debugfs_root, minor);
}
/**
@@ -1771,9 +1771,9 @@ static const struct drm_debugfs_info drm_atomic_debugfs_list[] = {
{"state", drm_state_info, 0},
};
-void drm_atomic_debugfs_init(struct drm_minor *minor)
+void drm_atomic_debugfs_init(struct drm_device *dev)
{
- drm_debugfs_add_files(minor->dev, drm_atomic_debugfs_list,
+ drm_debugfs_add_files(dev, drm_atomic_debugfs_list,
ARRAY_SIZE(drm_atomic_debugfs_list));
}
#endif
@@ -514,9 +514,9 @@ static const struct drm_debugfs_info drm_client_debugfs_list[] = {
{ "internal_clients", drm_client_debugfs_internal_clients, 0 },
};
-void drm_client_debugfs_init(struct drm_minor *minor)
+void drm_client_debugfs_init(struct drm_device *dev)
{
- drm_debugfs_add_files(minor->dev, drm_client_debugfs_list,
+ drm_debugfs_add_files(dev, drm_client_debugfs_list,
ARRAY_SIZE(drm_client_debugfs_list));
}
#endif
@@ -232,7 +232,7 @@ int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
/* drm_atomic.c */
#ifdef CONFIG_DEBUG_FS
struct drm_minor;
-void drm_atomic_debugfs_init(struct drm_minor *minor);
+void drm_atomic_debugfs_init(struct drm_device *dev);
#endif
int __drm_atomic_helper_disable_plane(struct drm_plane *plane,
@@ -218,8 +218,31 @@ void drm_debugfs_create_files(const struct drm_info_list *files, int count,
}
EXPORT_SYMBOL(drm_debugfs_create_files);
-int drm_debugfs_init(struct drm_minor *minor, int minor_id,
- struct dentry *root)
+void drm_debugfs_dev_init(struct drm_device *dev, struct dentry *root)
+{
+ dev->debugfs_root = debugfs_create_dir(dev->unique, root);
+}
+
+void drm_debugfs_dev_fini(struct drm_device *dev)
+{
+ debugfs_remove_recursive(dev->debugfs_root);
+ dev->debugfs_root = NULL;
+}
+
+void drm_debugfs_dev_register(struct drm_device *dev)
+{
+ drm_debugfs_add_files(dev, drm_debugfs_list, DRM_DEBUGFS_ENTRIES);
+
+ if (drm_core_check_feature(dev, DRIVER_MODESET)) {
+ drm_framebuffer_debugfs_init(dev);
+ drm_client_debugfs_init(dev);
+ }
+ if (drm_drv_uses_atomic_modeset(dev))
+ drm_atomic_debugfs_init(dev);
+}
+
+int drm_debugfs_register(struct drm_minor *minor, int minor_id,
+ struct dentry *root)
{
struct drm_device *dev = minor->dev;
struct drm_debugfs_entry *entry, *tmp;
@@ -228,19 +251,11 @@ int drm_debugfs_init(struct drm_minor *minor, int minor_id,
INIT_LIST_HEAD(&minor->debugfs_list);
mutex_init(&minor->debugfs_lock);
sprintf(name, "%d", minor_id);
- minor->debugfs_root = debugfs_create_dir(name, root);
+ minor->debugfs_symlink = debugfs_create_symlink(name, root,
+ dev->unique);
- drm_debugfs_add_files(minor->dev, drm_debugfs_list, DRM_DEBUGFS_ENTRIES);
-
- if (drm_drv_uses_atomic_modeset(dev)) {
- drm_atomic_debugfs_init(minor);
- }
-
- if (drm_core_check_feature(dev, DRIVER_MODESET)) {
- drm_framebuffer_debugfs_init(minor);
-
- drm_client_debugfs_init(minor);
- }
+ /* TODO: Only for compatibility with drivers */
+ minor->debugfs_root = dev->debugfs_root;
if (dev->driver->debugfs_init && dev->render != minor)
dev->driver->debugfs_init(minor);
@@ -307,13 +322,12 @@ static void drm_debugfs_remove_all_files(struct drm_minor *minor)
void drm_debugfs_cleanup(struct drm_minor *minor)
{
- if (!minor->debugfs_root)
+ if (!minor->debugfs_symlink)
return;
drm_debugfs_remove_all_files(minor);
-
- debugfs_remove_recursive(minor->debugfs_root);
- minor->debugfs_root = NULL;
+ debugfs_remove(minor->debugfs_symlink);
+ minor->debugfs_symlink = NULL;
}
/**
@@ -498,13 +512,13 @@ static const struct file_operations drm_connector_fops = {
void drm_debugfs_connector_add(struct drm_connector *connector)
{
- struct drm_minor *minor = connector->dev->primary;
+ struct drm_device *dev = connector->dev;
struct dentry *root;
- if (!minor->debugfs_root)
+ if (dev->debugfs_root)
return;
- root = debugfs_create_dir(connector->name, minor->debugfs_root);
+ root = debugfs_create_dir(connector->name, dev->debugfs_root);
connector->debugfs_entry = root;
/* force */
@@ -539,7 +553,7 @@ void drm_debugfs_connector_remove(struct drm_connector *connector)
void drm_debugfs_crtc_add(struct drm_crtc *crtc)
{
- struct drm_minor *minor = crtc->dev->primary;
+ struct drm_device *dev = crtc->dev;
struct dentry *root;
char *name;
@@ -547,7 +561,7 @@ void drm_debugfs_crtc_add(struct drm_crtc *crtc)
if (!name)
return;
- root = debugfs_create_dir(name, minor->debugfs_root);
+ root = debugfs_create_dir(name, dev->debugfs_root);
kfree(name);
crtc->debugfs_entry = root;
@@ -172,10 +172,9 @@ static int drm_minor_register(struct drm_device *dev, unsigned int type)
if (!minor)
return 0;
- if (minor->type == DRM_MINOR_ACCEL) {
- accel_debugfs_init(minor, minor->index);
- } else {
- ret = drm_debugfs_init(minor, minor->index, drm_debugfs_root);
+ if (minor->type != DRM_MINOR_ACCEL) {
+ ret = drm_debugfs_register(minor, minor->index,
+ drm_debugfs_root);
if (ret) {
DRM_ERROR("DRM: Failed to initialize /sys/kernel/debug/dri.\n");
goto err_debugfs;
@@ -697,6 +696,11 @@ static int drm_dev_init(struct drm_device *dev,
goto err;
}
+ if (drm_core_check_feature(dev, DRIVER_COMPUTE_ACCEL))
+ accel_debugfs_init(dev);
+ else
+ drm_debugfs_dev_init(dev, drm_debugfs_root);
+
return 0;
err:
@@ -916,6 +920,11 @@ int drm_dev_register(struct drm_device *dev, unsigned long flags)
if (drm_dev_needs_global_mutex(dev))
mutex_lock(&drm_global_mutex);
+ if (drm_core_check_feature(dev, DRIVER_COMPUTE_ACCEL))
+ accel_debugfs_register(dev);
+ else
+ drm_debugfs_dev_register(dev);
+
ret = drm_minor_register(dev, DRM_MINOR_RENDER);
if (ret)
goto err_minors;
@@ -999,6 +1008,7 @@ void drm_dev_unregister(struct drm_device *dev)
drm_minor_unregister(dev, DRM_MINOR_ACCEL);
drm_minor_unregister(dev, DRM_MINOR_PRIMARY);
drm_minor_unregister(dev, DRM_MINOR_RENDER);
+ drm_debugfs_dev_fini(dev);
}
EXPORT_SYMBOL(drm_dev_unregister);
@@ -1222,9 +1222,9 @@ static const struct drm_debugfs_info drm_framebuffer_debugfs_list[] = {
{ "framebuffer", drm_framebuffer_info, 0 },
};
-void drm_framebuffer_debugfs_init(struct drm_minor *minor)
+void drm_framebuffer_debugfs_init(struct drm_device *dev)
{
- drm_debugfs_add_files(minor->dev, drm_framebuffer_debugfs_list,
+ drm_debugfs_add_files(dev, drm_framebuffer_debugfs_list,
ARRAY_SIZE(drm_framebuffer_debugfs_list));
}
#endif
@@ -180,8 +180,10 @@ void drm_gem_vunmap(struct drm_gem_object *obj, struct iosys_map *map);
/* drm_debugfs.c drm_debugfs_crc.c */
#if defined(CONFIG_DEBUG_FS)
-int drm_debugfs_init(struct drm_minor *minor, int minor_id,
- struct dentry *root);
+void drm_debugfs_dev_fini(struct drm_device *dev);
+void drm_debugfs_dev_register(struct drm_device *dev);
+int drm_debugfs_register(struct drm_minor *minor, int minor_id,
+ struct dentry *root);
void drm_debugfs_cleanup(struct drm_minor *minor);
void drm_debugfs_late_register(struct drm_device *dev);
void drm_debugfs_connector_add(struct drm_connector *connector);
@@ -190,8 +192,12 @@ void drm_debugfs_crtc_add(struct drm_crtc *crtc);
void drm_debugfs_crtc_remove(struct drm_crtc *crtc);
void drm_debugfs_crtc_crc_add(struct drm_crtc *crtc);
#else
-static inline int drm_debugfs_init(struct drm_minor *minor, int minor_id,
- struct dentry *root)
+static drm_debugfs_dev_register(struct drm_device *dev)
+{
+}
+
+static inline int drm_debugfs_register(struct drm_minor *minor, int minor_id,
+ struct dentry *root)
{
return 0;
}
@@ -257,4 +263,4 @@ int drm_syncobj_query_ioctl(struct drm_device *dev, void *data,
/* drm_framebuffer.c */
void drm_framebuffer_print_info(struct drm_printer *p, unsigned int indent,
const struct drm_framebuffer *fb);
-void drm_framebuffer_debugfs_init(struct drm_minor *minor);
+void drm_framebuffer_debugfs_init(struct drm_device *dev);
@@ -58,7 +58,8 @@ int accel_minor_alloc(void);
void accel_minor_replace(struct drm_minor *minor, int index);
void accel_set_device_instance_params(struct device *kdev, int index);
int accel_open(struct inode *inode, struct file *filp);
-void accel_debugfs_init(struct drm_minor *minor, int minor_id);
+void accel_debugfs_init(struct drm_device *dev);
+void accel_debugfs_register(struct drm_device *dev);
#else
@@ -89,7 +90,11 @@ static inline void accel_set_device_instance_params(struct device *kdev, int ind
{
}
-static inline void accel_debugfs_init(struct drm_minor *minor, int minor_id)
+static inline void accel_debugfs_init(struct drm_device *dev)
+{
+}
+
+static inline void accel_debugfs_register(struct drm_device *dev)
{
}
@@ -195,6 +195,6 @@ int drm_client_modeset_dpms(struct drm_client_dev *client, int mode);
drm_for_each_connector_iter(connector, iter) \
if (connector->connector_type != DRM_MODE_CONNECTOR_WRITEBACK)
-void drm_client_debugfs_init(struct drm_minor *minor);
+void drm_client_debugfs_init(struct drm_device *dev);
#endif
@@ -311,6 +311,13 @@ struct drm_device {
*/
struct drm_fb_helper *fb_helper;
+ /**
+ * @debugfs_root:
+ *
+ * Root directory for debugfs files.
+ */
+ struct dentry *debugfs_root;
+
/**
* @debugfs_mutex:
*
@@ -590,4 +590,12 @@ static inline bool drm_firmware_drivers_only(void)
return video_firmware_drivers_only();
}
+#if defined(CONFIG_DEBUG_FS)
+void drm_debugfs_dev_init(struct drm_device *dev, struct dentry *root);
+#else
+static void drm_debugfs_dev_init(struct drm_device *dev, struct dentry *root)
+{
+}
+#endif
+
#endif
@@ -78,6 +78,7 @@ struct drm_minor {
struct device *kdev; /* Linux device */
struct drm_device *dev;
+ struct dentry *debugfs_symlink;
struct dentry *debugfs_root;
struct list_head debugfs_list;
Instead of the per minor directories only create a single debugfs directory for the whole device directly when the device is initialized. For DRM devices each minor gets a symlink to the per device directory for now until we can be sure that this isn't useful any more in any way. Accel devices create only the per device directory and also drops the mid layer callback to create driver specific files. v2: cleanup accel component as well Signed-off-by: Christian König <christian.koenig@amd.com> --- drivers/accel/drm_accel.c | 30 ++++++++------- drivers/gpu/drm/drm_atomic.c | 4 +- drivers/gpu/drm/drm_client.c | 4 +- drivers/gpu/drm/drm_crtc_internal.h | 2 +- drivers/gpu/drm/drm_debugfs.c | 60 ++++++++++++++++++----------- drivers/gpu/drm/drm_drv.c | 18 +++++++-- drivers/gpu/drm/drm_framebuffer.c | 4 +- drivers/gpu/drm/drm_internal.h | 16 +++++--- include/drm/drm_accel.h | 9 ++++- include/drm/drm_client.h | 2 +- include/drm/drm_device.h | 7 ++++ include/drm/drm_drv.h | 8 ++++ include/drm/drm_file.h | 1 + 13 files changed, 110 insertions(+), 55 deletions(-)