LXR linux/drivers/gpu/drm/msm/msm

   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        return ret;
 144}
 145
 146int msm_debugfs_init(struct drm_minor *minor)
 147{
 148        struct drm_device *dev = minor->dev;
 149        struct msm_drm_private *priv = dev->dev_private;
 150        int ret;
 151
 152        ret = drm_debugfs_create_files(msm_debugfs_list,
 153                        ARRAY_SIZE(msm_debugfs_list),
 154                        minor->debugfs_root, minor);
 155
 156        if (ret) {
 157                dev_err(dev->dev, "could not install msm_debugfs_list\n");
 158                return ret;
 159        }
 160
 161        if (priv->kms->funcs->debugfs_init) {
 162                ret = priv->kms->funcs->debugfs_init(priv->kms, minor);
 163                if (ret)
 164                        return ret;
 165        }
 166
 167        return ret;
 168}
 169#endif
 170
 171