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		pm_runtime_get_sync(&gpu->pdev->dev);
 32		gpu->funcs->show(gpu, m);
 33		pm_runtime_put_sync(&gpu->pdev->dev);
 34	}
 35
 36	return 0;
 37}
 38
 39static int msm_gem_show(struct drm_device *dev, struct seq_file *m)
 40{
 41	struct msm_drm_private *priv = dev->dev_private;
 42	struct msm_gpu *gpu = priv->gpu;
 43
 44	if (gpu) {
 45		seq_printf(m, "Active Objects (%s):\n", gpu->name);
 46		msm_gem_describe_objects(&gpu->active_list, m);
 47	}
 48
 49	seq_printf(m, "Inactive Objects:\n");
 50	msm_gem_describe_objects(&priv->inactive_list, m);
 51
 52	return 0;
 53}
 54
 55static int msm_mm_show(struct drm_device *dev, struct seq_file *m)
 56{
 57	struct drm_printer p = drm_seq_file_printer(m);
 58
 59	drm_mm_print(&dev->vma_offset_manager->vm_addr_space_mm, &p);
 60
 61	return 0;
 62}
 63
 64static int msm_fb_show(struct drm_device *dev, struct seq_file *m)
 65{
 66	struct msm_drm_private *priv = dev->dev_private;
 67	struct drm_framebuffer *fb, *fbdev_fb = NULL;
 68
 69	if (priv->fbdev) {
 70		seq_printf(m, "fbcon ");
 71		fbdev_fb = priv->fbdev->fb;
 72		msm_framebuffer_describe(fbdev_fb, m);
 73	}
 74
 75	mutex_lock(&dev->mode_config.fb_lock);
 76	list_for_each_entry(fb, &dev->mode_config.fb_list, head) {
 77		if (fb == fbdev_fb)
 78			continue;
 79
 80		seq_printf(m, "user ");
 81		msm_framebuffer_describe(fb, m);
 82	}
 83	mutex_unlock(&dev->mode_config.fb_lock);
 84
 85	return 0;
 86}
 87
 88static int show_locked(struct seq_file *m, void *arg)
 89{
 90	struct drm_info_node *node = (struct drm_info_node *) m->private;
 91	struct drm_device *dev = node->minor->dev;
 92	int (*show)(struct drm_device *dev, struct seq_file *m) =
 93			node->info_ent->data;
 94	int ret;
 95
 96	ret = mutex_lock_interruptible(&dev->struct_mutex);
 97	if (ret)
 98		return ret;
 99
100	ret = show(dev, m);
101
102	mutex_unlock(&dev->struct_mutex);
103
104	return ret;
105}
106
107static struct drm_info_list msm_debugfs_list[] = {
108		{"gpu", show_locked, 0, msm_gpu_show},
109		{"gem", show_locked, 0, msm_gem_show},
110		{ "mm", show_locked, 0, msm_mm_show },
111		{ "fb", show_locked, 0, msm_fb_show },
112};
113
114static int late_init_minor(struct drm_minor *minor)
115{
116	int ret;
117
118	if (!minor)
119		return 0;
120
121	ret = msm_rd_debugfs_init(minor);
122	if (ret) {
123		dev_err(minor->dev->dev, "could not install rd debugfs\n");
124		return ret;
125	}
126
127	ret = msm_perf_debugfs_init(minor);
128	if (ret) {
129		dev_err(minor->dev->dev, "could not install perf debugfs\n");
130		return ret;
131	}
132
133	return 0;
134}
135
136int msm_debugfs_late_init(struct drm_device *dev)
137{
138	int ret;
139	ret = late_init_minor(dev->primary);
140	if (ret)
141		return ret;
142	ret = late_init_minor(dev->render);
143	if (ret)
144		return ret;
145	ret = late_init_minor(dev->control);
146	return ret;
147}
148
149int msm_debugfs_init(struct drm_minor *minor)
150{
151	struct drm_device *dev = minor->dev;
152	struct msm_drm_private *priv = dev->dev_private;
153	int ret;
154
155	ret = drm_debugfs_create_files(msm_debugfs_list,
156			ARRAY_SIZE(msm_debugfs_list),
157			minor->debugfs_root, minor);
158
159	if (ret) {
160		dev_err(dev->dev, "could not install msm_debugfs_list\n");
161		return ret;
162	}
163
164	if (priv->kms->funcs->debugfs_init) {
165		ret = priv->kms->funcs->debugfs_init(priv->kms, minor);
166		if (ret)
167			return ret;
168	}
169
170	return ret;
171}
172#endif
173