1 /* 2 * Copyright (C) 2009 Red Hat <bskeggs@redhat.com> 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining 5 * a copy of this software and associated documentation files (the 6 * "Software"), to deal in the Software without restriction, including 7 * without limitation the rights to use, copy, modify, merge, publish, 8 * distribute, sublicense, and/or sell copies of the Software, and to 9 * permit persons to whom the Software is furnished to do so, subject to 10 * the following conditions: 11 * 12 * The above copyright notice and this permission notice (including the 13 * next paragraph) shall be included in all copies or substantial 14 * portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 17 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 19 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE 20 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 21 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 22 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 23 * 24 */ 25 26 /* 27 * Authors: 28 * Alon Levy <alevy@redhat.com> 29 */ 30 31 #include <linux/debugfs.h> 32 33 #include "drmP.h" 34 #include "qxl_drv.h" 35 #include "qxl_object.h" 36 37 38 #if defined(CONFIG_DEBUG_FS) 39 static int 40 qxl_debugfs_irq_received(struct seq_file *m, void *data) 41 { 42 struct drm_info_node *node = (struct drm_info_node *) m->private; 43 struct qxl_device *qdev = node->minor->dev->dev_private; 44 45 seq_printf(m, "%d\n", atomic_read(&qdev->irq_received)); 46 seq_printf(m, "%d\n", atomic_read(&qdev->irq_received_display)); 47 seq_printf(m, "%d\n", atomic_read(&qdev->irq_received_cursor)); 48 seq_printf(m, "%d\n", atomic_read(&qdev->irq_received_io_cmd)); 49 seq_printf(m, "%d\n", qdev->irq_received_error); 50 return 0; 51 } 52 53 static int 54 qxl_debugfs_buffers_info(struct seq_file *m, void *data) 55 { 56 struct drm_info_node *node = (struct drm_info_node *) m->private; 57 struct qxl_device *qdev = node->minor->dev->dev_private; 58 struct qxl_bo *bo; 59 60 list_for_each_entry(bo, &qdev->gem.objects, list) { 61 struct reservation_object_list *fobj; 62 int rel; 63 64 rcu_read_lock(); 65 fobj = rcu_dereference(bo->tbo.resv->fence); 66 rel = fobj ? fobj->shared_count : 0; 67 rcu_read_unlock(); 68 69 seq_printf(m, "size %ld, pc %d, num releases %d\n", 70 (unsigned long)bo->gem_base.size, 71 bo->pin_count, rel); 72 } 73 return 0; 74 } 75 76 static struct drm_info_list qxl_debugfs_list[] = { 77 { "irq_received", qxl_debugfs_irq_received, 0, NULL }, 78 { "qxl_buffers", qxl_debugfs_buffers_info, 0, NULL }, 79 }; 80 #define QXL_DEBUGFS_ENTRIES ARRAY_SIZE(qxl_debugfs_list) 81 #endif 82 83 int 84 qxl_debugfs_init(struct drm_minor *minor) 85 { 86 #if defined(CONFIG_DEBUG_FS) 87 drm_debugfs_create_files(qxl_debugfs_list, QXL_DEBUGFS_ENTRIES, 88 minor->debugfs_root, minor); 89 #endif 90 return 0; 91 } 92 93 void 94 qxl_debugfs_takedown(struct drm_minor *minor) 95 { 96 #if defined(CONFIG_DEBUG_FS) 97 drm_debugfs_remove_files(qxl_debugfs_list, QXL_DEBUGFS_ENTRIES, 98 minor); 99 #endif 100 } 101 102 int qxl_debugfs_add_files(struct qxl_device *qdev, 103 struct drm_info_list *files, 104 unsigned nfiles) 105 { 106 unsigned i; 107 108 for (i = 0; i < qdev->debugfs_count; i++) { 109 if (qdev->debugfs[i].files == files) { 110 /* Already registered */ 111 return 0; 112 } 113 } 114 115 i = qdev->debugfs_count + 1; 116 if (i > QXL_DEBUGFS_MAX_COMPONENTS) { 117 DRM_ERROR("Reached maximum number of debugfs components.\n"); 118 DRM_ERROR("Report so we increase QXL_DEBUGFS_MAX_COMPONENTS.\n"); 119 return -EINVAL; 120 } 121 qdev->debugfs[qdev->debugfs_count].files = files; 122 qdev->debugfs[qdev->debugfs_count].num_files = nfiles; 123 qdev->debugfs_count = i; 124 #if defined(CONFIG_DEBUG_FS) 125 drm_debugfs_create_files(files, nfiles, 126 qdev->ddev->control->debugfs_root, 127 qdev->ddev->control); 128 drm_debugfs_create_files(files, nfiles, 129 qdev->ddev->primary->debugfs_root, 130 qdev->ddev->primary); 131 #endif 132 return 0; 133 } 134 135 void qxl_debugfs_remove_files(struct qxl_device *qdev) 136 { 137 #if defined(CONFIG_DEBUG_FS) 138 unsigned i; 139 140 for (i = 0; i < qdev->debugfs_count; i++) { 141 drm_debugfs_remove_files(qdev->debugfs[i].files, 142 qdev->debugfs[i].num_files, 143 qdev->ddev->control); 144 drm_debugfs_remove_files(qdev->debugfs[i].files, 145 qdev->debugfs[i].num_files, 146 qdev->ddev->primary); 147 } 148 #endif 149 } 150