diff options
Diffstat (limited to 'drivers/gpu/drm/msm/msm_debugfs.c')
| -rw-r--r-- | drivers/gpu/drm/msm/msm_debugfs.c | 251 |
1 files changed, 251 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/msm_debugfs.c b/drivers/gpu/drm/msm/msm_debugfs.c new file mode 100644 index 000000000..a3666267d --- /dev/null +++ b/drivers/gpu/drm/msm/msm_debugfs.c @@ -0,0 +1,251 @@ +/* + * Copyright (C) 2013-2016 Red Hat + * Author: Rob Clark <robdclark@gmail.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#ifdef CONFIG_DEBUG_FS +#include <linux/debugfs.h> +#include "msm_drv.h" +#include "msm_gpu.h" +#include "msm_kms.h" +#include "msm_debugfs.h" + +struct msm_gpu_show_priv { + struct msm_gpu_state *state; + struct drm_device *dev; +}; + +static int msm_gpu_show(struct seq_file *m, void *arg) +{ + struct drm_printer p = drm_seq_file_printer(m); + struct msm_gpu_show_priv *show_priv = m->private; + struct msm_drm_private *priv = show_priv->dev->dev_private; + struct msm_gpu *gpu = priv->gpu; + int ret; + + ret = mutex_lock_interruptible(&show_priv->dev->struct_mutex); + if (ret) + return ret; + + drm_printf(&p, "%s Status:\n", gpu->name); + gpu->funcs->show(gpu, show_priv->state, &p); + + mutex_unlock(&show_priv->dev->struct_mutex); + + return 0; +} + +static int msm_gpu_release(struct inode *inode, struct file *file) +{ + struct seq_file *m = file->private_data; + struct msm_gpu_show_priv *show_priv = m->private; + struct msm_drm_private *priv = show_priv->dev->dev_private; + struct msm_gpu *gpu = priv->gpu; + + mutex_lock(&show_priv->dev->struct_mutex); + gpu->funcs->gpu_state_put(show_priv->state); + mutex_unlock(&show_priv->dev->struct_mutex); + + kfree(show_priv); + + return single_release(inode, file); +} + +static int msm_gpu_open(struct inode *inode, struct file *file) +{ + struct drm_device *dev = inode->i_private; + struct msm_drm_private *priv = dev->dev_private; + struct msm_gpu *gpu = priv->gpu; + struct msm_gpu_show_priv *show_priv; + int ret; + + if (!gpu) + return -ENODEV; + + show_priv = kmalloc(sizeof(*show_priv), GFP_KERNEL); + if (!show_priv) + return -ENOMEM; + + ret = mutex_lock_interruptible(&dev->struct_mutex); + if (ret) + goto free_priv; + + pm_runtime_get_sync(&gpu->pdev->dev); + msm_gpu_hw_init(gpu); + show_priv->state = gpu->funcs->gpu_state_get(gpu); + pm_runtime_put_sync(&gpu->pdev->dev); + + mutex_unlock(&dev->struct_mutex); + + if (IS_ERR(show_priv->state)) { + ret = PTR_ERR(show_priv->state); + goto free_priv; + } + + show_priv->dev = dev; + + ret = single_open(file, msm_gpu_show, show_priv); + if (ret) + goto free_priv; + + return 0; + +free_priv: + kfree(show_priv); + return ret; +} + +static const struct file_operations msm_gpu_fops = { + .owner = THIS_MODULE, + .open = msm_gpu_open, + .read = seq_read, + .llseek = seq_lseek, + .release = msm_gpu_release, +}; + +static int msm_gem_show(struct drm_device *dev, struct seq_file *m) +{ + struct msm_drm_private *priv = dev->dev_private; + struct msm_gpu *gpu = priv->gpu; + + if (gpu) { + seq_printf(m, "Active Objects (%s):\n", gpu->name); + msm_gem_describe_objects(&gpu->active_list, m); + } + + seq_printf(m, "Inactive Objects:\n"); + msm_gem_describe_objects(&priv->inactive_list, m); + + return 0; +} + +static int msm_mm_show(struct drm_device *dev, struct seq_file *m) +{ + struct drm_printer p = drm_seq_file_printer(m); + + drm_mm_print(&dev->vma_offset_manager->vm_addr_space_mm, &p); + + return 0; +} + +static int msm_fb_show(struct drm_device *dev, struct seq_file *m) +{ + struct msm_drm_private *priv = dev->dev_private; + struct drm_framebuffer *fb, *fbdev_fb = NULL; + + if (priv->fbdev) { + seq_printf(m, "fbcon "); + fbdev_fb = priv->fbdev->fb; + msm_framebuffer_describe(fbdev_fb, m); + } + + mutex_lock(&dev->mode_config.fb_lock); + list_for_each_entry(fb, &dev->mode_config.fb_list, head) { + if (fb == fbdev_fb) + continue; + + seq_printf(m, "user "); + msm_framebuffer_describe(fb, m); + } + mutex_unlock(&dev->mode_config.fb_lock); + + return 0; +} + +static int show_locked(struct seq_file *m, void *arg) +{ + struct drm_info_node *node = (struct drm_info_node *) m->private; + struct drm_device *dev = node->minor->dev; + int (*show)(struct drm_device *dev, struct seq_file *m) = + node->info_ent->data; + int ret; + + ret = mutex_lock_interruptible(&dev->struct_mutex); + if (ret) + return ret; + + ret = show(dev, m); + + mutex_unlock(&dev->struct_mutex); + + return ret; +} + +static struct drm_info_list msm_debugfs_list[] = { + {"gem", show_locked, 0, msm_gem_show}, + { "mm", show_locked, 0, msm_mm_show }, + { "fb", show_locked, 0, msm_fb_show }, +}; + +static int late_init_minor(struct drm_minor *minor) +{ + int ret; + + if (!minor) + return 0; + + ret = msm_rd_debugfs_init(minor); + if (ret) { + dev_err(minor->dev->dev, "could not install rd debugfs\n"); + return ret; + } + + ret = msm_perf_debugfs_init(minor); + if (ret) { + dev_err(minor->dev->dev, "could not install perf debugfs\n"); + return ret; + } + + return 0; +} + +int msm_debugfs_late_init(struct drm_device *dev) +{ + int ret; + ret = late_init_minor(dev->primary); + if (ret) + return ret; + ret = late_init_minor(dev->render); + return ret; +} + +int msm_debugfs_init(struct drm_minor *minor) +{ + struct drm_device *dev = minor->dev; + struct msm_drm_private *priv = dev->dev_private; + int ret; + + ret = drm_debugfs_create_files(msm_debugfs_list, + ARRAY_SIZE(msm_debugfs_list), + minor->debugfs_root, minor); + + if (ret) { + dev_err(dev->dev, "could not install msm_debugfs_list\n"); + return ret; + } + + debugfs_create_file("gpu", S_IRUSR, minor->debugfs_root, + dev, &msm_gpu_fops); + + if (priv->kms->funcs->debugfs_init) { + ret = priv->kms->funcs->debugfs_init(priv->kms, minor); + if (ret) + return ret; + } + + return ret; +} +#endif + |