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 <linux/seq_file.h> 21 22 #include <drm/drm_crtc.h> 23 #include <drm/drm_fb_helper.h> 24 25 #include "omap_drv.h" 26 #include "omap_dmm_tiler.h" 27 28 #ifdef CONFIG_DEBUG_FS 29 30 static int gem_show(struct seq_file *m, void *arg) 31 { 32 struct drm_info_node *node = (struct drm_info_node *) m->private; 33 struct drm_device *dev = node->minor->dev; 34 struct omap_drm_private *priv = dev->dev_private; 35 int ret; 36 37 ret = mutex_lock_interruptible(&dev->struct_mutex); 38 if (ret) 39 return ret; 40 41 seq_printf(m, "All Objects:\n"); 42 omap_gem_describe_objects(&priv->obj_list, m); 43 44 mutex_unlock(&dev->struct_mutex); 45 46 return 0; 47 } 48 49 static int mm_show(struct seq_file *m, void *arg) 50 { 51 struct drm_info_node *node = (struct drm_info_node *) m->private; 52 struct drm_device *dev = node->minor->dev; 53 struct drm_printer p = drm_seq_file_printer(m); 54 55 drm_mm_print(&dev->vma_offset_manager->vm_addr_space_mm, &p); 56 57 return 0; 58 } 59 60 #ifdef CONFIG_DRM_FBDEV_EMULATION 61 static int fb_show(struct seq_file *m, void *arg) 62 { 63 struct drm_info_node *node = (struct drm_info_node *) m->private; 64 struct drm_device *dev = node->minor->dev; 65 struct omap_drm_private *priv = dev->dev_private; 66 struct drm_framebuffer *fb; 67 68 seq_printf(m, "fbcon "); 69 omap_framebuffer_describe(priv->fbdev->fb, m); 70 71 mutex_lock(&dev->mode_config.fb_lock); 72 list_for_each_entry(fb, &dev->mode_config.fb_list, head) { 73 if (fb == priv->fbdev->fb) 74 continue; 75 76 seq_printf(m, "user "); 77 omap_framebuffer_describe(fb, m); 78 } 79 mutex_unlock(&dev->mode_config.fb_lock); 80 81 return 0; 82 } 83 #endif 84 85 /* list of debufs files that are applicable to all devices */ 86 static struct drm_info_list omap_debugfs_list[] = { 87 {"gem", gem_show, 0}, 88 {"mm", mm_show, 0}, 89 #ifdef CONFIG_DRM_FBDEV_EMULATION 90 {"fb", fb_show, 0}, 91 #endif 92 }; 93 94 /* list of debugfs files that are specific to devices with dmm/tiler */ 95 static struct drm_info_list omap_dmm_debugfs_list[] = { 96 {"tiler_map", tiler_map_show, 0}, 97 }; 98 99 int omap_debugfs_init(struct drm_minor *minor) 100 { 101 struct drm_device *dev = minor->dev; 102 int ret; 103 104 ret = drm_debugfs_create_files(omap_debugfs_list, 105 ARRAY_SIZE(omap_debugfs_list), 106 minor->debugfs_root, minor); 107 108 if (ret) { 109 dev_err(dev->dev, "could not install omap_debugfs_list\n"); 110 return ret; 111 } 112 113 if (dmm_is_available()) 114 ret = drm_debugfs_create_files(omap_dmm_debugfs_list, 115 ARRAY_SIZE(omap_dmm_debugfs_list), 116 minor->debugfs_root, minor); 117 118 if (ret) { 119 dev_err(dev->dev, "could not install omap_dmm_debugfs_list\n"); 120 return ret; 121 } 122 123 return ret; 124 } 125 126 #endif 127