2 * Copyright © 2008 Intel Corporation
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
24 * Eric Anholt <eric@anholt.net>
25 * Keith Packard <keithp@keithp.com>
29 #include <linux/seq_file.h>
35 #define DRM_I915_RING_DEBUG 1
38 #if defined(CONFIG_DEBUG_FS)
40 static int i915_gem_active_info(struct seq_file *m, void *data)
42 struct drm_info_node *node = (struct drm_info_node *) m->private;
43 struct drm_device *dev = node->minor->dev;
44 drm_i915_private_t *dev_priv = dev->dev_private;
45 struct drm_i915_gem_object *obj_priv;
47 seq_printf(m, "Active:\n");
48 list_for_each_entry(obj_priv, &dev_priv->mm.active_list,
51 struct drm_gem_object *obj = obj_priv->obj;
53 seq_printf(m, " %p(%d): %08x %08x %d\n",
55 obj->read_domains, obj->write_domain,
56 obj_priv->last_rendering_seqno);
58 seq_printf(m, " %p: %08x %08x %d\n",
60 obj->read_domains, obj->write_domain,
61 obj_priv->last_rendering_seqno);
67 static int i915_gem_flushing_info(struct seq_file *m, void *data)
69 struct drm_info_node *node = (struct drm_info_node *) m->private;
70 struct drm_device *dev = node->minor->dev;
71 drm_i915_private_t *dev_priv = dev->dev_private;
72 struct drm_i915_gem_object *obj_priv;
74 seq_printf(m, "Flushing:\n");
75 list_for_each_entry(obj_priv, &dev_priv->mm.flushing_list,
78 struct drm_gem_object *obj = obj_priv->obj;
80 seq_printf(m, " %p(%d): %08x %08x %d\n",
82 obj->read_domains, obj->write_domain,
83 obj_priv->last_rendering_seqno);
85 seq_printf(m, " %p: %08x %08x %d\n", obj,
86 obj->read_domains, obj->write_domain,
87 obj_priv->last_rendering_seqno);
93 static int i915_gem_inactive_info(struct seq_file *m, void *data)
95 struct drm_info_node *node = (struct drm_info_node *) m->private;
96 struct drm_device *dev = node->minor->dev;
97 drm_i915_private_t *dev_priv = dev->dev_private;
98 struct drm_i915_gem_object *obj_priv;
100 seq_printf(m, "Inactive:\n");
101 list_for_each_entry(obj_priv, &dev_priv->mm.inactive_list,
104 struct drm_gem_object *obj = obj_priv->obj;
106 seq_printf(m, " %p(%d): %08x %08x %d\n",
108 obj->read_domains, obj->write_domain,
109 obj_priv->last_rendering_seqno);
111 seq_printf(m, " %p: %08x %08x %d\n", obj,
112 obj->read_domains, obj->write_domain,
113 obj_priv->last_rendering_seqno);
119 static int i915_gem_request_info(struct seq_file *m, void *data)
121 struct drm_info_node *node = (struct drm_info_node *) m->private;
122 struct drm_device *dev = node->minor->dev;
123 drm_i915_private_t *dev_priv = dev->dev_private;
124 struct drm_i915_gem_request *gem_request;
126 seq_printf(m, "Request:\n");
127 list_for_each_entry(gem_request, &dev_priv->mm.request_list, list) {
128 seq_printf(m, " %d @ %d\n",
130 (int) (jiffies - gem_request->emitted_jiffies));
135 static int i915_gem_seqno_info(struct seq_file *m, void *data)
137 struct drm_info_node *node = (struct drm_info_node *) m->private;
138 struct drm_device *dev = node->minor->dev;
139 drm_i915_private_t *dev_priv = dev->dev_private;
141 if (dev_priv->hw_status_page != NULL) {
142 seq_printf(m, "Current sequence: %d\n",
143 i915_get_gem_seqno(dev));
145 seq_printf(m, "Current sequence: hws uninitialized\n");
147 seq_printf(m, "Waiter sequence: %d\n",
148 dev_priv->mm.waiting_gem_seqno);
149 seq_printf(m, "IRQ sequence: %d\n", dev_priv->mm.irq_gem_seqno);
154 static int i915_interrupt_info(struct seq_file *m, void *data)
156 struct drm_info_node *node = (struct drm_info_node *) m->private;
157 struct drm_device *dev = node->minor->dev;
158 drm_i915_private_t *dev_priv = dev->dev_private;
160 seq_printf(m, "Interrupt enable: %08x\n",
162 seq_printf(m, "Interrupt identity: %08x\n",
164 seq_printf(m, "Interrupt mask: %08x\n",
166 seq_printf(m, "Pipe A stat: %08x\n",
167 I915_READ(PIPEASTAT));
168 seq_printf(m, "Pipe B stat: %08x\n",
169 I915_READ(PIPEBSTAT));
170 seq_printf(m, "Interrupts received: %d\n",
171 atomic_read(&dev_priv->irq_received));
172 if (dev_priv->hw_status_page != NULL) {
173 seq_printf(m, "Current sequence: %d\n",
174 i915_get_gem_seqno(dev));
176 seq_printf(m, "Current sequence: hws uninitialized\n");
178 seq_printf(m, "Waiter sequence: %d\n",
179 dev_priv->mm.waiting_gem_seqno);
180 seq_printf(m, "IRQ sequence: %d\n",
181 dev_priv->mm.irq_gem_seqno);
185 static int i915_hws_info(struct seq_file *m, void *data)
187 struct drm_info_node *node = (struct drm_info_node *) m->private;
188 struct drm_device *dev = node->minor->dev;
189 drm_i915_private_t *dev_priv = dev->dev_private;
193 hws = (volatile u32 *)dev_priv->hw_status_page;
197 for (i = 0; i < 4096 / sizeof(u32) / 4; i += 4) {
198 seq_printf(m, "0x%08x: 0x%08x 0x%08x 0x%08x 0x%08x\n",
200 hws[i], hws[i + 1], hws[i + 2], hws[i + 3]);
205 static struct drm_info_list i915_gem_debugfs_list[] = {
206 {"i915_gem_active", i915_gem_active_info, 0},
207 {"i915_gem_flushing", i915_gem_flushing_info, 0},
208 {"i915_gem_inactive", i915_gem_inactive_info, 0},
209 {"i915_gem_request", i915_gem_request_info, 0},
210 {"i915_gem_seqno", i915_gem_seqno_info, 0},
211 {"i915_gem_interrupt", i915_interrupt_info, 0},
212 {"i915_gem_hws", i915_hws_info, 0},
214 #define I915_GEM_DEBUGFS_ENTRIES ARRAY_SIZE(i915_gem_debugfs_list)
216 int i915_gem_debugfs_init(struct drm_minor *minor)
218 return drm_debugfs_create_files(i915_gem_debugfs_list,
219 I915_GEM_DEBUGFS_ENTRIES,
220 minor->debugfs_root, minor);
223 void i915_gem_debugfs_cleanup(struct drm_minor *minor)
225 drm_debugfs_remove_files(i915_gem_debugfs_list,
226 I915_GEM_DEBUGFS_ENTRIES, minor);
229 #endif /* CONFIG_DEBUG_FS */