^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) * Created: Sun Dec 21 13:08:50 2008 by bgamari@gmail.com
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Copyright 2008 Ben Gamari <bgamari@gmail.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Permission is hereby granted, free of charge, to any person obtaining a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * copy of this software and associated documentation files (the "Software"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * to deal in the Software without restriction, including without limitation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * the rights to use, copy, modify, merge, publish, distribute, sublicense,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * and/or sell copies of the Software, and to permit persons to whom the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * Software is furnished to do so, subject to the following conditions:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * The above copyright notice and this permission notice (including the next
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * paragraph) shall be included in all copies or substantial portions of the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) * Software.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) * OTHER DEALINGS IN THE SOFTWARE.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include <linux/debugfs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #include <linux/export.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #include <linux/seq_file.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #include <linux/uaccess.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #include <drm/drm_atomic.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #include <drm/drm_auth.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #include <drm/drm_client.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #include <drm/drm_debugfs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #include <drm/drm_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #include <drm/drm_drv.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #include <drm/drm_edid.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #include <drm/drm_file.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #include <drm/drm_gem.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #include "drm_crtc_internal.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #include "drm_internal.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #if defined(CONFIG_DEBUG_FS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) /***************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) * Initialization, etc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) **************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) static int drm_name_info(struct seq_file *m, void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) struct drm_info_node *node = (struct drm_info_node *) m->private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) struct drm_minor *minor = node->minor;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) struct drm_device *dev = minor->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) struct drm_master *master;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) mutex_lock(&dev->master_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) master = dev->master;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) seq_printf(m, "%s", dev->driver->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) if (dev->dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) seq_printf(m, " dev=%s", dev_name(dev->dev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) if (master && master->unique)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) seq_printf(m, " master=%s", master->unique);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) if (dev->unique)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) seq_printf(m, " unique=%s", dev->unique);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) seq_printf(m, "\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) mutex_unlock(&dev->master_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) static int drm_clients_info(struct seq_file *m, void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) struct drm_info_node *node = (struct drm_info_node *) m->private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) struct drm_device *dev = node->minor->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) struct drm_file *priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) kuid_t uid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) seq_printf(m,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) "%20s %5s %3s master a %5s %10s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) "command",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) "pid",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) "dev",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) "uid",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) "magic");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) /* dev->filelist is sorted youngest first, but we want to present
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) * oldest first (i.e. kernel, servers, clients), so walk backwardss.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) mutex_lock(&dev->filelist_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) list_for_each_entry_reverse(priv, &dev->filelist, lhead) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) struct task_struct *task;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) bool is_current_master = drm_is_current_master(priv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) rcu_read_lock(); /* locks pid_task()->comm */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) task = pid_task(priv->pid, PIDTYPE_PID);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) uid = task ? __task_cred(task)->euid : GLOBAL_ROOT_UID;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) seq_printf(m, "%20s %5d %3d %c %c %5d %10u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) task ? task->comm : "<unknown>",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) pid_vnr(priv->pid),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) priv->minor->index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) is_current_master ? 'y' : 'n',
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) priv->authenticated ? 'y' : 'n',
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) from_kuid_munged(seq_user_ns(m), uid),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) priv->magic);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) rcu_read_unlock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) mutex_unlock(&dev->filelist_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) static int drm_gem_one_name_info(int id, void *ptr, void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) struct drm_gem_object *obj = ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) struct seq_file *m = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) seq_printf(m, "%6d %8zd %7d %8d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) obj->name, obj->size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) obj->handle_count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) kref_read(&obj->refcount));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) static int drm_gem_name_info(struct seq_file *m, void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) struct drm_info_node *node = (struct drm_info_node *) m->private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) struct drm_device *dev = node->minor->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) seq_printf(m, " name size handles refcount\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) mutex_lock(&dev->object_name_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) idr_for_each(&dev->object_name_idr, drm_gem_one_name_info, m);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) mutex_unlock(&dev->object_name_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) static const struct drm_info_list drm_debugfs_list[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) {"name", drm_name_info, 0},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) {"clients", drm_clients_info, 0},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) {"gem_names", drm_gem_name_info, DRIVER_GEM},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) #define DRM_DEBUGFS_ENTRIES ARRAY_SIZE(drm_debugfs_list)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) static int drm_debugfs_open(struct inode *inode, struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) struct drm_info_node *node = inode->i_private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) return single_open(file, node->info_ent->show, node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) static const struct file_operations drm_debugfs_fops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) .open = drm_debugfs_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) .read = seq_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) .llseek = seq_lseek,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) .release = single_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) * drm_debugfs_create_files - Initialize a given set of debugfs files for DRM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) * minor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) * @files: The array of files to create
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) * @count: The number of files given
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) * @root: DRI debugfs dir entry.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) * @minor: device minor number
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) * Create a given set of debugfs files represented by an array of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) * &struct drm_info_list in the given root directory. These files will be removed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) * automatically on drm_debugfs_cleanup().
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) void drm_debugfs_create_files(const struct drm_info_list *files, int count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) struct dentry *root, struct drm_minor *minor)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) struct drm_device *dev = minor->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) struct drm_info_node *tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) for (i = 0; i < count; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) u32 features = files[i].driver_features;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) if (features && !drm_core_check_all_features(dev, features))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) tmp = kmalloc(sizeof(struct drm_info_node), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) if (tmp == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) tmp->minor = minor;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) tmp->dent = debugfs_create_file(files[i].name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) S_IFREG | S_IRUGO, root, tmp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) &drm_debugfs_fops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) tmp->info_ent = &files[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) mutex_lock(&minor->debugfs_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) list_add(&tmp->list, &minor->debugfs_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) mutex_unlock(&minor->debugfs_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) EXPORT_SYMBOL(drm_debugfs_create_files);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) int drm_debugfs_init(struct drm_minor *minor, int minor_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) struct dentry *root)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) struct drm_device *dev = minor->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) char name[64];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) INIT_LIST_HEAD(&minor->debugfs_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) mutex_init(&minor->debugfs_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) sprintf(name, "%d", minor_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) minor->debugfs_root = debugfs_create_dir(name, root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) drm_debugfs_create_files(drm_debugfs_list, DRM_DEBUGFS_ENTRIES,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) minor->debugfs_root, minor);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) if (drm_drv_uses_atomic_modeset(dev)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) drm_atomic_debugfs_init(minor);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) if (drm_core_check_feature(dev, DRIVER_MODESET)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) drm_framebuffer_debugfs_init(minor);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) drm_client_debugfs_init(minor);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) if (dev->driver->debugfs_init)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) dev->driver->debugfs_init(minor);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) int drm_debugfs_remove_files(const struct drm_info_list *files, int count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) struct drm_minor *minor)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) struct list_head *pos, *q;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) struct drm_info_node *tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) mutex_lock(&minor->debugfs_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) for (i = 0; i < count; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) list_for_each_safe(pos, q, &minor->debugfs_list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) tmp = list_entry(pos, struct drm_info_node, list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) if (tmp->info_ent == &files[i]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) debugfs_remove(tmp->dent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) list_del(pos);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) kfree(tmp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) mutex_unlock(&minor->debugfs_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) EXPORT_SYMBOL(drm_debugfs_remove_files);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) static void drm_debugfs_remove_all_files(struct drm_minor *minor)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) struct drm_info_node *node, *tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) mutex_lock(&minor->debugfs_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) list_for_each_entry_safe(node, tmp, &minor->debugfs_list, list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) debugfs_remove(node->dent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) list_del(&node->list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) kfree(node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) mutex_unlock(&minor->debugfs_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) void drm_debugfs_cleanup(struct drm_minor *minor)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) if (!minor->debugfs_root)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) drm_debugfs_remove_all_files(minor);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) debugfs_remove_recursive(minor->debugfs_root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) minor->debugfs_root = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) static int connector_show(struct seq_file *m, void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) struct drm_connector *connector = m->private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) seq_printf(m, "%s\n", drm_get_connector_force_name(connector->force));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) static int connector_open(struct inode *inode, struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) struct drm_connector *dev = inode->i_private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) return single_open(file, connector_show, dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) static ssize_t connector_write(struct file *file, const char __user *ubuf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) size_t len, loff_t *offp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) struct seq_file *m = file->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) struct drm_connector *connector = m->private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) char buf[12];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) if (len > sizeof(buf) - 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) if (copy_from_user(buf, ubuf, len))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) buf[len] = '\0';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) if (sysfs_streq(buf, "on"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) connector->force = DRM_FORCE_ON;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) else if (sysfs_streq(buf, "digital"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) connector->force = DRM_FORCE_ON_DIGITAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) else if (sysfs_streq(buf, "off"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) connector->force = DRM_FORCE_OFF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) else if (sysfs_streq(buf, "unspecified"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) connector->force = DRM_FORCE_UNSPECIFIED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) return len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) static int edid_show(struct seq_file *m, void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) struct drm_connector *connector = m->private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) struct drm_property_blob *edid = connector->edid_blob_ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) if (connector->override_edid && edid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) seq_write(m, edid->data, edid->length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) static int edid_open(struct inode *inode, struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) struct drm_connector *dev = inode->i_private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) return single_open(file, edid_show, dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) static ssize_t edid_write(struct file *file, const char __user *ubuf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) size_t len, loff_t *offp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) struct seq_file *m = file->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) struct drm_connector *connector = m->private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) char *buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) struct edid *edid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) buf = memdup_user(ubuf, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) if (IS_ERR(buf))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) return PTR_ERR(buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) edid = (struct edid *) buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) if (len == 5 && !strncmp(buf, "reset", 5)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) connector->override_edid = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) ret = drm_connector_update_edid_property(connector, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) } else if (len < EDID_LENGTH ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) EDID_LENGTH * (1 + edid->extensions) > len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) ret = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) connector->override_edid = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) ret = drm_connector_update_edid_property(connector, edid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) if (!ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) connector->override_edid = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) kfree(buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) return (ret) ? ret : len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) * Returns the min and max vrr vfreq through the connector's debugfs file.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) * Example usage: cat /sys/kernel/debug/dri/0/DP-1/vrr_range
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) static int vrr_range_show(struct seq_file *m, void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) struct drm_connector *connector = m->private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) if (connector->status != connector_status_connected)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) seq_printf(m, "Min: %u\n", (u8)connector->display_info.monitor_range.min_vfreq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) seq_printf(m, "Max: %u\n", (u8)connector->display_info.monitor_range.max_vfreq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) DEFINE_SHOW_ATTRIBUTE(vrr_range);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) static const struct file_operations drm_edid_fops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) .open = edid_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) .read = seq_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) .llseek = seq_lseek,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) .release = single_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) .write = edid_write
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) static const struct file_operations drm_connector_fops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) .open = connector_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) .read = seq_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) .llseek = seq_lseek,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) .release = single_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) .write = connector_write
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) void drm_debugfs_connector_add(struct drm_connector *connector)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) struct drm_minor *minor = connector->dev->primary;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) struct dentry *root;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) if (!minor->debugfs_root)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) root = debugfs_create_dir(connector->name, minor->debugfs_root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) connector->debugfs_entry = root;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) /* force */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) debugfs_create_file("force", S_IRUGO | S_IWUSR, root, connector,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) &drm_connector_fops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) /* edid */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) debugfs_create_file("edid_override", S_IRUGO | S_IWUSR, root, connector,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) &drm_edid_fops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) /* vrr range */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) debugfs_create_file("vrr_range", S_IRUGO, root, connector,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) &vrr_range_fops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) void drm_debugfs_connector_remove(struct drm_connector *connector)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) if (!connector->debugfs_entry)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) debugfs_remove_recursive(connector->debugfs_entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) connector->debugfs_entry = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) void drm_debugfs_crtc_add(struct drm_crtc *crtc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) struct drm_minor *minor = crtc->dev->primary;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) struct dentry *root;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) char *name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) name = kasprintf(GFP_KERNEL, "crtc-%d", crtc->index);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) if (!name)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) root = debugfs_create_dir(name, minor->debugfs_root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) kfree(name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) crtc->debugfs_entry = root;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) drm_debugfs_crtc_crc_add(crtc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) void drm_debugfs_crtc_remove(struct drm_crtc *crtc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) debugfs_remove_recursive(crtc->debugfs_entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) crtc->debugfs_entry = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) #endif /* CONFIG_DEBUG_FS */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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