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drm/debugfs: create debugfs late register functions
Although the device-centered debugfs functions can track requests for the addition of DRM debugfs files at any time and have them added all at once during drm_dev_register(), they are not able to create debugfs files for modeset components, as they are registered after the primary and the render drm_minor are registered. So, create a drm_debugfs_late_register() function, which is responsible for dealing with the creation of all the debugfs files for modeset components at once. Therefore, the functions drm_debugfs_add_file() and drm_debugfs_add_files() can be used in late_register hooks. Signed-off-by: Maíra Canal <mcanal@igalia.com> Reviewed-by: Melissa Wen <mwen@igalia.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Maíra Canal <mairacanal@riseup.net> Link: https://patchwork.freedesktop.org/patch/msgid/20221219120621.15086-4-mcanal@igalia.com
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3 changed files with 21 additions and 0 deletions
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@ -254,6 +254,20 @@ int drm_debugfs_init(struct drm_minor *minor, int minor_id,
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return 0;
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return 0;
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}
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}
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void drm_debugfs_late_register(struct drm_device *dev)
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{
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struct drm_minor *minor = dev->primary;
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struct drm_debugfs_entry *entry, *tmp;
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if (!minor)
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return;
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list_for_each_entry_safe(entry, tmp, &dev->debugfs_list, list) {
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debugfs_create_file(entry->file.name, S_IFREG | S_IRUGO,
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minor->debugfs_root, entry, &drm_debugfs_entry_fops);
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list_del(&entry->list);
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}
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}
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int drm_debugfs_remove_files(const struct drm_info_list *files, int count,
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int drm_debugfs_remove_files(const struct drm_info_list *files, int count,
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struct drm_minor *minor)
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struct drm_minor *minor)
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@ -186,6 +186,7 @@ int drm_gem_dumb_destroy(struct drm_file *file, struct drm_device *dev,
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int drm_debugfs_init(struct drm_minor *minor, int minor_id,
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int drm_debugfs_init(struct drm_minor *minor, int minor_id,
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struct dentry *root);
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struct dentry *root);
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void drm_debugfs_cleanup(struct drm_minor *minor);
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void drm_debugfs_cleanup(struct drm_minor *minor);
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void drm_debugfs_late_register(struct drm_device *dev);
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void drm_debugfs_connector_add(struct drm_connector *connector);
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void drm_debugfs_connector_add(struct drm_connector *connector);
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void drm_debugfs_connector_remove(struct drm_connector *connector);
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void drm_debugfs_connector_remove(struct drm_connector *connector);
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void drm_debugfs_crtc_add(struct drm_crtc *crtc);
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void drm_debugfs_crtc_add(struct drm_crtc *crtc);
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@ -202,6 +203,10 @@ static inline void drm_debugfs_cleanup(struct drm_minor *minor)
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{
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{
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}
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}
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static inline void drm_debugfs_late_register(struct drm_device *dev)
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{
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}
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static inline void drm_debugfs_connector_add(struct drm_connector *connector)
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static inline void drm_debugfs_connector_add(struct drm_connector *connector)
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{
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{
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}
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}
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@ -54,6 +54,8 @@ int drm_modeset_register_all(struct drm_device *dev)
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if (ret)
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if (ret)
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goto err_connector;
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goto err_connector;
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drm_debugfs_late_register(dev);
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return 0;
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return 0;
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err_connector:
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err_connector:
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