1/*
  2 * Copyright (C) 2013-2016 Red Hat
  3 * Author: Rob Clark <robdclark@gmail.com>
  4 *
  5 * This program is free software; you can redistribute it and/or modify it
  6 * under the terms of the GNU General Public License version 2 as published by
  7 * the Free Software Foundation.
  8 *
  9 * This program is distributed in the hope that it will be useful, but WITHOUT
 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 12 * more details.
 13 *
 14 * You should have received a copy of the GNU General Public License along with
 15 * this program.  If not, see <http://www.gnu.org/licenses/>.
 16 */
 17
 18#ifdef CONFIG_DEBUG_FS
 19#include "msm_drv.h"
 20#include "msm_gpu.h"
 21#include "msm_kms.h"
 22#include "msm_debugfs.h"
 23
 24static int msm_gpu_show(struct drm_device *dev, struct seq_file *m)
 25{
 26	struct msm_drm_private *priv = dev->dev_private;
 27	struct msm_gpu *gpu = priv->gpu;
 28
 29	if (gpu) {
 30		seq_printf(m, "%s Status:\n", gpu->name);
 31		gpu->funcs->show(gpu, m);
 32	}
 33
 34	return 0;
 35}
 36
 37static int msm_gem_show(struct drm_device *dev, struct seq_file *m)
 38{
 39	struct msm_drm_private *priv = dev->dev_private;
 40	struct msm_gpu *gpu = priv->gpu;
 41
 42	if (gpu) {
 43		seq_printf(m, "Active Objects (%s):\n", gpu->name);
 44		msm_gem_describe_objects(&gpu->active_list, m);
 45	}
 46
 47	seq_printf(m, "Inactive Objects:\n");
 48	msm_gem_describe_objects(&priv->inactive_list, m);
 49
 50	return 0;
 51}
 52
 53static int msm_mm_show(struct drm_device *dev, struct seq_file *m)
 54{
 55	return drm_mm_dump_table(m, &dev->vma_offset_manager->vm_addr_space_mm);
 56}
 57
 58static int msm_fb_show(struct drm_device *dev, struct seq_file *m)
 59{
 60	struct msm_drm_private *priv = dev->dev_private;
 61	struct drm_framebuffer *fb, *fbdev_fb = NULL;
 62
 63	if (priv->fbdev) {
 64		seq_printf(m, "fbcon ");
 65		fbdev_fb = priv->fbdev->fb;
 66		msm_framebuffer_describe(fbdev_fb, m);
 67	}
 68
 69	mutex_lock(&dev->mode_config.fb_lock);
 70	list_for_each_entry(fb, &dev->mode_config.fb_list, head) {
 71		if (fb == fbdev_fb)
 72			continue;
 73
 74		seq_printf(m, "user ");
 75		msm_framebuffer_describe(fb, m);
 76	}
 77	mutex_unlock(&dev->mode_config.fb_lock);
 78
 79	return 0;
 80}
 81
 82static int show_locked(struct seq_file *m, void *arg)
 83{
 84	struct drm_info_node *node = (struct drm_info_node *) m->private;
 85	struct drm_device *dev = node->minor->dev;
 86	int (*show)(struct drm_device *dev, struct seq_file *m) =
 87			node->info_ent->data;
 88	int ret;
 89
 90	ret = mutex_lock_interruptible(&dev->struct_mutex);
 91	if (ret)
 92		return ret;
 93
 94	ret = show(dev, m);
 95
 96	mutex_unlock(&dev->struct_mutex);
 97
 98	return ret;
 99}
100
101static struct drm_info_list msm_debugfs_list[] = {
102		{"gpu", show_locked, 0, msm_gpu_show},
103		{"gem", show_locked, 0, msm_gem_show},
104		{ "mm", show_locked, 0, msm_mm_show },
105		{ "fb", show_locked, 0, msm_fb_show },
106};
107
108static int late_init_minor(struct drm_minor *minor)
109{
110	int ret;
111
112	if (!minor)
113		return 0;
114
115	ret = msm_rd_debugfs_init(minor);
116	if (ret) {
117		dev_err(minor->dev->dev, "could not install rd debugfs\n");
118		return ret;
119	}
120
121	ret = msm_perf_debugfs_init(minor);
122	if (ret) {
123		dev_err(minor->dev->dev, "could not install perf debugfs\n");
124		return ret;
125	}
126
127	return 0;
128}
129
130int msm_debugfs_late_init(struct drm_device *dev)
131{
132	int ret;
133	ret = late_init_minor(dev->primary);
134	if (ret)
135		return ret;
136	ret = late_init_minor(dev->render);
137	if (ret)
138		return ret;
139	ret = late_init_minor(dev->control);
140	return ret;
141}
142
143int msm_debugfs_init(struct drm_minor *minor)
144{
145	struct drm_device *dev = minor->dev;
146	struct msm_drm_private *priv = dev->dev_private;
147	int ret;
148
149	ret = drm_debugfs_create_files(msm_debugfs_list,
150			ARRAY_SIZE(msm_debugfs_list),
151			minor->debugfs_root, minor);
152
153	if (ret) {
154		dev_err(dev->dev, "could not install msm_debugfs_list\n");
155		return ret;
156	}
157
158	if (priv->kms->funcs->debugfs_init)
159		ret = priv->kms->funcs->debugfs_init(priv->kms, minor);
160
161	return ret;
162}
163
164void msm_debugfs_cleanup(struct drm_minor *minor)
165{
166	struct drm_device *dev = minor->dev;
167	struct msm_drm_private *priv = dev->dev_private;
168
169	drm_debugfs_remove_files(msm_debugfs_list,
170			ARRAY_SIZE(msm_debugfs_list), minor);
171	if (!priv)
172		return;
173
174	if (priv->kms->funcs->debugfs_cleanup)
175		priv->kms->funcs->debugfs_cleanup(priv->kms, minor);
176
177	msm_rd_debugfs_cleanup(minor);
178	msm_perf_debugfs_cleanup(minor);
179}
180#endif
181