/* * Created: Sun Dec 21 13:08:50 2008 by [email protected] * * Copyright 2008 Ben Gamari <[email protected]> * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice (including the next * paragraph) shall be included in all copies or substantial portions of the * Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. */ #include <linux/debugfs.h> #include <linux/export.h> #include <linux/seq_file.h> #include <linux/slab.h> #include <linux/uaccess.h> #include <drm/drm_atomic.h> #include <drm/drm_auth.h> #include <drm/drm_bridge.h> #include <drm/drm_client.h> #include <drm/drm_debugfs.h> #include <drm/drm_device.h> #include <drm/drm_drv.h> #include <drm/drm_edid.h> #include <drm/drm_file.h> #include <drm/drm_gem.h> #include <drm/drm_managed.h> #include <drm/drm_gpuvm.h> #include "drm_crtc_internal.h" #include "drm_internal.h" /*************************************************** * Initialization, etc. **************************************************/ static int drm_name_info(struct seq_file *m, void *data) { … } static int drm_clients_info(struct seq_file *m, void *data) { … } static int drm_gem_one_name_info(int id, void *ptr, void *data) { … } static int drm_gem_name_info(struct seq_file *m, void *data) { … } static const struct drm_debugfs_info drm_debugfs_list[] = …; #define DRM_DEBUGFS_ENTRIES … static int drm_debugfs_open(struct inode *inode, struct file *file) { … } static int drm_debugfs_entry_open(struct inode *inode, struct file *file) { … } static const struct file_operations drm_debugfs_entry_fops = …; static const struct file_operations drm_debugfs_fops = …; /** * drm_debugfs_gpuva_info - dump the given DRM GPU VA space * @m: pointer to the &seq_file to write * @gpuvm: the &drm_gpuvm representing the GPU VA space * * Dumps the GPU VA mappings of a given DRM GPU VA manager. * * For each DRM GPU VA space drivers should call this function from their * &drm_info_list's show callback. * * Returns: 0 on success, -ENODEV if the &gpuvm is not initialized */ int drm_debugfs_gpuva_info(struct seq_file *m, struct drm_gpuvm *gpuvm) { … } EXPORT_SYMBOL(…); /** * drm_debugfs_create_files - Initialize a given set of debugfs files for DRM * minor * @files: The array of files to create * @count: The number of files given * @root: DRI debugfs dir entry. * @minor: device minor number * * Create a given set of debugfs files represented by an array of * &struct drm_info_list in the given root directory. These files will be removed * automatically on drm_debugfs_dev_fini(). */ void drm_debugfs_create_files(const struct drm_info_list *files, int count, struct dentry *root, struct drm_minor *minor) { … } EXPORT_SYMBOL(…); int drm_debugfs_remove_files(const struct drm_info_list *files, int count, struct dentry *root, struct drm_minor *minor) { … } EXPORT_SYMBOL(…); /** * drm_debugfs_dev_init - create debugfs directory for the device * @dev: the device which we want to create the directory for * @root: the parent directory depending on the device type * * Creates the debugfs directory for the device under the given root directory. */ void drm_debugfs_dev_init(struct drm_device *dev, struct dentry *root) { … } /** * drm_debugfs_dev_fini - cleanup debugfs directory * @dev: the device to cleanup the debugfs stuff * * Remove the debugfs directory, might be called multiple times. */ 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_unregister(struct drm_minor *minor) { … } /** * drm_debugfs_add_file - Add a given file to the DRM device debugfs file list * @dev: drm device for the ioctl * @name: debugfs file name * @show: show callback * @data: driver-private data, should not be device-specific * * Add a given file entry to the DRM device debugfs file list to be created on * drm_debugfs_init. */ void drm_debugfs_add_file(struct drm_device *dev, const char *name, int (*show)(struct seq_file*, void*), void *data) { … } EXPORT_SYMBOL(…); /** * drm_debugfs_add_files - Add an array of files to the DRM device debugfs file list * @dev: drm device for the ioctl * @files: The array of files to create * @count: The number of files given * * Add a given set of debugfs files represented by an array of * &struct drm_debugfs_info in the DRM device debugfs file list. */ void drm_debugfs_add_files(struct drm_device *dev, const struct drm_debugfs_info *files, int count) { … } EXPORT_SYMBOL(…); static int connector_show(struct seq_file *m, void *data) { … } static int connector_open(struct inode *inode, struct file *file) { … } static ssize_t connector_write(struct file *file, const char __user *ubuf, size_t len, loff_t *offp) { … } static int edid_show(struct seq_file *m, void *data) { … } static int edid_open(struct inode *inode, struct file *file) { … } static ssize_t edid_write(struct file *file, const char __user *ubuf, size_t len, loff_t *offp) { … } /* * Returns the min and max vrr vfreq through the connector's debugfs file. * Example usage: cat /sys/kernel/debug/dri/0/DP-1/vrr_range */ static int vrr_range_show(struct seq_file *m, void *data) { … } DEFINE_SHOW_ATTRIBUTE(…); /* * Returns Connector's max supported bpc through debugfs file. * Example usage: cat /sys/kernel/debug/dri/0/DP-1/output_bpc */ static int output_bpc_show(struct seq_file *m, void *data) { … } DEFINE_SHOW_ATTRIBUTE(…); static const struct file_operations drm_edid_fops = …; static const struct file_operations drm_connector_fops = …; #define HDMI_MAX_INFOFRAME_SIZE … static ssize_t audio_infoframe_read(struct file *filp, char __user *ubuf, size_t count, loff_t *ppos) { … } static const struct file_operations audio_infoframe_fops = …; static int create_hdmi_audio_infoframe_file(struct drm_connector *connector, struct dentry *parent) { … } #define DEFINE_INFOFRAME_FILE(_f) … DEFINE_INFOFRAME_FILE(avi); DEFINE_INFOFRAME_FILE(hdmi); DEFINE_INFOFRAME_FILE(hdr_drm); DEFINE_INFOFRAME_FILE(spd); static int create_hdmi_infoframe_files(struct drm_connector *connector, struct dentry *parent) { … } static void hdmi_debugfs_add(struct drm_connector *connector) { … } void drm_debugfs_connector_add(struct drm_connector *connector) { … } void drm_debugfs_connector_remove(struct drm_connector *connector) { … } void drm_debugfs_crtc_add(struct drm_crtc *crtc) { … } void drm_debugfs_crtc_remove(struct drm_crtc *crtc) { … } static int bridges_show(struct seq_file *m, void *data) { … } DEFINE_SHOW_ATTRIBUTE(…); void drm_debugfs_encoder_add(struct drm_encoder *encoder) { … } void drm_debugfs_encoder_remove(struct drm_encoder *encoder) { … }
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