1 /* 2 * drivers/gpu/drm/omapdrm/omap_debugfs.c 3 * 4 * Copyright (C) 2011 Texas Instruments 5 * Author: Rob Clark <rob.clark@linaro.org> 6 * 7 * This program is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License version 2 as published by 9 * the Free Software Foundation. 10 * 11 * This program is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 14 * more details. 15 * 16 * You should have received a copy of the GNU General Public License along with 17 * this program. If not, see <http://www.gnu.org/licenses/>. 18 */ 19 20 #include <drm/drm_crtc.h> 21 #include <drm/drm_fb_helper.h> 22 23 #include "omap_drv.h" 24 #include "omap_dmm_tiler.h" 25 26 #ifdef CONFIG_DEBUG_FS 27 28 static int gem_show(struct seq_file *m, void *arg) 29 { 30 struct drm_info_node *node = (struct drm_info_node *) m->private; 31 struct drm_device *dev = node->minor->dev; 32 struct omap_drm_private *priv = dev->dev_private; 33 int ret; 34 35 ret = mutex_lock_interruptible(&dev->struct_mutex); 36 if (ret) 37 return ret; 38 39 seq_printf(m, "All Objects:\n"); 40 omap_gem_describe_objects(&priv->obj_list, m); 41 42 mutex_unlock(&dev->struct_mutex); 43 44 return 0; 45 } 46 47 static int mm_show(struct seq_file *m, void *arg) 48 { 49 struct drm_info_node *node = (struct drm_info_node *) m->private; 50 struct drm_device *dev = node->minor->dev; 51 return drm_mm_dump_table(m, &dev->vma_offset_manager->vm_addr_space_mm); 52 } 53 54 static int fb_show(struct seq_file *m, void *arg) 55 { 56 struct drm_info_node *node = (struct drm_info_node *) m->private; 57 struct drm_device *dev = node->minor->dev; 58 struct omap_drm_private *priv = dev->dev_private; 59 struct drm_framebuffer *fb; 60 61 seq_printf(m, "fbcon "); 62 omap_framebuffer_describe(priv->fbdev->fb, m); 63 64 mutex_lock(&dev->mode_config.fb_lock); 65 list_for_each_entry(fb, &dev->mode_config.fb_list, head) { 66 if (fb == priv->fbdev->fb) 67 continue; 68 69 seq_printf(m, "user "); 70 omap_framebuffer_describe(fb, m); 71 } 72 mutex_unlock(&dev->mode_config.fb_lock); 73 74 return 0; 75 } 76 77 /* list of debufs files that are applicable to all devices */ 78 static struct drm_info_list omap_debugfs_list[] = { 79 {"gem", gem_show, 0}, 80 {"mm", mm_show, 0}, 81 {"fb", fb_show, 0}, 82 }; 83 84 /* list of debugfs files that are specific to devices with dmm/tiler */ 85 static struct drm_info_list omap_dmm_debugfs_list[] = { 86 {"tiler_map", tiler_map_show, 0}, 87 }; 88 89 int omap_debugfs_init(struct drm_minor *minor) 90 { 91 struct drm_device *dev = minor->dev; 92 int ret; 93 94 ret = drm_debugfs_create_files(omap_debugfs_list, 95 ARRAY_SIZE(omap_debugfs_list), 96 minor->debugfs_root, minor); 97 98 if (ret) { 99 dev_err(dev->dev, "could not install omap_debugfs_list\n"); 100 return ret; 101 } 102 103 if (dmm_is_available()) 104 ret = drm_debugfs_create_files(omap_dmm_debugfs_list, 105 ARRAY_SIZE(omap_dmm_debugfs_list), 106 minor->debugfs_root, minor); 107 108 if (ret) { 109 dev_err(dev->dev, "could not install omap_dmm_debugfs_list\n"); 110 return ret; 111 } 112 113 return ret; 114 } 115 116 void omap_debugfs_cleanup(struct drm_minor *minor) 117 { 118 drm_debugfs_remove_files(omap_debugfs_list, 119 ARRAY_SIZE(omap_debugfs_list), minor); 120 if (dmm_is_available()) 121 drm_debugfs_remove_files(omap_dmm_debugfs_list, 122 ARRAY_SIZE(omap_dmm_debugfs_list), minor); 123 } 124 125 #endif 126