cregit-Linux how code gets into the kernel

Release 4.14 drivers/gpu/drm/drm_info.c

Directory: drivers/gpu/drm
/**
 * \file drm_info.c
 * DRM info file implementations
 *
 * \author Ben Gamari <bgamari@gmail.com>
 */

/*
 * Created: Sun Dec 21 13:09:50 2008 by bgamari@gmail.com
 *
 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
 * Copyright 2008 Ben Gamari <bgamari@gmail.com>
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */

#include <linux/seq_file.h>
#include <drm/drmP.h>
#include <drm/drm_gem.h>

#include "drm_internal.h"
#include "drm_legacy.h"

/**
 * Called when "/proc/dri/.../name" is read.
 *
 * Prints the device name together with the bus id if available.
 */

int drm_name_info(struct seq_file *m, void *data) { struct drm_info_node *node = (struct drm_info_node *) m->private; struct drm_minor *minor = node->minor; struct drm_device *dev = minor->dev; struct drm_master *master; mutex_lock(&dev->master_mutex); master = dev->master; seq_printf(m, "%s", dev->driver->name); if (dev->dev) seq_printf(m, " dev=%s", dev_name(dev->dev)); if (master && master->unique) seq_printf(m, " master=%s", master->unique); if (dev->unique) seq_printf(m, " unique=%s", dev->unique); seq_printf(m, "\n"); mutex_unlock(&dev->master_mutex); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Gamari7951.97%120.00%
Chris Wilson4328.29%120.00%
Daniel Vetter2818.42%240.00%
Jordan Crouse21.32%120.00%
Total152100.00%5100.00%

/** * Called when "/proc/dri/.../clients" is read. * */
int drm_clients_info(struct seq_file *m, void *data) { struct drm_info_node *node = (struct drm_info_node *) m->private; struct drm_device *dev = node->minor->dev; struct drm_file *priv; kuid_t uid; seq_printf(m, "%20s %5s %3s master a %5s %10s\n", "command", "pid", "dev", "uid", "magic"); /* dev->filelist is sorted youngest first, but we want to present * oldest first (i.e. kernel, servers, clients), so walk backwardss. */ mutex_lock(&dev->filelist_mutex); list_for_each_entry_reverse(priv, &dev->filelist, lhead) { struct task_struct *task; rcu_read_lock(); /* locks pid_task()->comm */ task = pid_task(priv->pid, PIDTYPE_PID); uid = task ? __task_cred(task)->euid : GLOBAL_ROOT_UID; seq_printf(m, "%20s %5d %3d %c %c %5d %10u\n", task ? task->comm : "<unknown>", pid_vnr(priv->pid), priv->minor->index, drm_is_current_master(priv) ? 'y' : 'n', priv->authenticated ? 'y' : 'n', from_kuid_munged(seq_user_ns(m), uid), priv->magic); rcu_read_unlock(); } mutex_unlock(&dev->filelist_mutex); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Gamari9349.21%116.67%
Chris Wilson6735.45%116.67%
David Herrmann168.47%116.67%
Eric W. Biedermann84.23%116.67%
Daniel Vetter52.65%233.33%
Total189100.00%6100.00%


static int drm_gem_one_name_info(int id, void *ptr, void *data) { struct drm_gem_object *obj = ptr; struct seq_file *m = data; seq_printf(m, "%6d %8zd %7d %8d\n", obj->name, obj->size, obj->handle_count, kref_read(&obj->refcount)); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Gamari5895.08%125.00%
Peter Zijlstra11.64%125.00%
Dave Airlie11.64%125.00%
Sachin Kamat11.64%125.00%
Total61100.00%4100.00%


int drm_gem_name_info(struct seq_file *m, void *data) { struct drm_info_node *node = (struct drm_info_node *) m->private; struct drm_device *dev = node->minor->dev; seq_printf(m, " name size handles refcount\n"); mutex_lock(&dev->object_name_lock); idr_for_each(&dev->object_name_idr, drm_gem_one_name_info, m); mutex_unlock(&dev->object_name_lock); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Gamari6179.22%133.33%
Daniel Vetter1620.78%266.67%
Total77100.00%3100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Ben Gamari30060.24%15.26%
Chris Wilson11022.09%210.53%
Daniel Vetter5511.04%842.11%
David Herrmann163.21%15.26%
Eric W. Biedermann81.61%15.26%
Ville Syrjälä30.60%15.26%
Jordan Crouse20.40%15.26%
Sachin Kamat10.20%15.26%
Dave Airlie10.20%15.26%
Peter Zijlstra10.20%15.26%
David Howells10.20%15.26%
Total498100.00%19100.00%
Directory: drivers/gpu/drm
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