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)
41 #define FLUSHING_LIST 2
42 #define INACTIVE_LIST 3
44 static const char *get_pin_flag(struct drm_i915_gem_object
*obj_priv
)
46 if (obj_priv
->user_pin_count
> 0)
48 else if (obj_priv
->pin_count
> 0)
54 static const char *get_tiling_flag(struct drm_i915_gem_object
*obj_priv
)
56 switch (obj_priv
->tiling_mode
) {
58 case I915_TILING_NONE
: return " ";
59 case I915_TILING_X
: return "X";
60 case I915_TILING_Y
: return "Y";
64 static int i915_gem_object_list_info(struct seq_file
*m
, void *data
)
66 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
67 uintptr_t list
= (uintptr_t) node
->info_ent
->data
;
68 struct list_head
*head
;
69 struct drm_device
*dev
= node
->minor
->dev
;
70 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
71 struct drm_i915_gem_object
*obj_priv
;
75 seq_printf(m
, "Active:\n");
76 head
= &dev_priv
->mm
.active_list
;
79 seq_printf(m
, "Inctive:\n");
80 head
= &dev_priv
->mm
.inactive_list
;
83 seq_printf(m
, "Flushing:\n");
84 head
= &dev_priv
->mm
.flushing_list
;
87 DRM_INFO("Ooops, unexpected list\n");
91 list_for_each_entry(obj_priv
, head
, list
)
93 struct drm_gem_object
*obj
= obj_priv
->obj
;
95 seq_printf(m
, " %p: %s %08x %08x %d",
97 get_pin_flag(obj_priv
),
98 obj
->read_domains
, obj
->write_domain
,
99 obj_priv
->last_rendering_seqno
);
102 seq_printf(m
, " (name: %d)", obj
->name
);
103 if (obj_priv
->fence_reg
!= I915_FENCE_REG_NONE
)
104 seq_printf(m
, " (fence: %d\n", obj_priv
->fence_reg
);
110 static int i915_gem_request_info(struct seq_file
*m
, void *data
)
112 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
113 struct drm_device
*dev
= node
->minor
->dev
;
114 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
115 struct drm_i915_gem_request
*gem_request
;
117 seq_printf(m
, "Request:\n");
118 list_for_each_entry(gem_request
, &dev_priv
->mm
.request_list
, list
) {
119 seq_printf(m
, " %d @ %d\n",
121 (int) (jiffies
- gem_request
->emitted_jiffies
));
126 static int i915_gem_seqno_info(struct seq_file
*m
, void *data
)
128 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
129 struct drm_device
*dev
= node
->minor
->dev
;
130 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
132 if (dev_priv
->hw_status_page
!= NULL
) {
133 seq_printf(m
, "Current sequence: %d\n",
134 i915_get_gem_seqno(dev
));
136 seq_printf(m
, "Current sequence: hws uninitialized\n");
138 seq_printf(m
, "Waiter sequence: %d\n",
139 dev_priv
->mm
.waiting_gem_seqno
);
140 seq_printf(m
, "IRQ sequence: %d\n", dev_priv
->mm
.irq_gem_seqno
);
145 static int i915_interrupt_info(struct seq_file
*m
, void *data
)
147 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
148 struct drm_device
*dev
= node
->minor
->dev
;
149 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
151 seq_printf(m
, "Interrupt enable: %08x\n",
153 seq_printf(m
, "Interrupt identity: %08x\n",
155 seq_printf(m
, "Interrupt mask: %08x\n",
157 seq_printf(m
, "Pipe A stat: %08x\n",
158 I915_READ(PIPEASTAT
));
159 seq_printf(m
, "Pipe B stat: %08x\n",
160 I915_READ(PIPEBSTAT
));
161 seq_printf(m
, "Interrupts received: %d\n",
162 atomic_read(&dev_priv
->irq_received
));
163 if (dev_priv
->hw_status_page
!= NULL
) {
164 seq_printf(m
, "Current sequence: %d\n",
165 i915_get_gem_seqno(dev
));
167 seq_printf(m
, "Current sequence: hws uninitialized\n");
169 seq_printf(m
, "Waiter sequence: %d\n",
170 dev_priv
->mm
.waiting_gem_seqno
);
171 seq_printf(m
, "IRQ sequence: %d\n",
172 dev_priv
->mm
.irq_gem_seqno
);
176 static int i915_gem_fence_regs_info(struct seq_file
*m
, void *data
)
178 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
179 struct drm_device
*dev
= node
->minor
->dev
;
180 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
183 seq_printf(m
, "Reserved fences = %d\n", dev_priv
->fence_reg_start
);
184 seq_printf(m
, "Total fences = %d\n", dev_priv
->num_fence_regs
);
185 for (i
= 0; i
< dev_priv
->num_fence_regs
; i
++) {
186 struct drm_gem_object
*obj
= dev_priv
->fence_regs
[i
].obj
;
189 seq_printf(m
, "Fenced object[%2d] = unused\n", i
);
191 struct drm_i915_gem_object
*obj_priv
;
193 obj_priv
= obj
->driver_private
;
194 seq_printf(m
, "Fenced object[%2d] = %p: %s "
195 "%08x %08x %08x %s %08x %08x %d",
196 i
, obj
, get_pin_flag(obj_priv
),
197 obj_priv
->gtt_offset
,
198 obj
->size
, obj_priv
->stride
,
199 get_tiling_flag(obj_priv
),
200 obj
->read_domains
, obj
->write_domain
,
201 obj_priv
->last_rendering_seqno
);
203 seq_printf(m
, " (name: %d)", obj
->name
);
211 static int i915_hws_info(struct seq_file
*m
, void *data
)
213 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
214 struct drm_device
*dev
= node
->minor
->dev
;
215 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
219 hws
= (volatile u32
*)dev_priv
->hw_status_page
;
223 for (i
= 0; i
< 4096 / sizeof(u32
) / 4; i
+= 4) {
224 seq_printf(m
, "0x%08x: 0x%08x 0x%08x 0x%08x 0x%08x\n",
226 hws
[i
], hws
[i
+ 1], hws
[i
+ 2], hws
[i
+ 3]);
231 static struct drm_info_list i915_gem_debugfs_list
[] = {
232 {"i915_gem_active", i915_gem_object_list_info
, 0, (void *) ACTIVE_LIST
},
233 {"i915_gem_flushing", i915_gem_object_list_info
, 0, (void *) FLUSHING_LIST
},
234 {"i915_gem_inactive", i915_gem_object_list_info
, 0, (void *) INACTIVE_LIST
},
235 {"i915_gem_request", i915_gem_request_info
, 0},
236 {"i915_gem_seqno", i915_gem_seqno_info
, 0},
237 {"i915_gem_fence_regs", i915_gem_fence_regs_info
, 0},
238 {"i915_gem_interrupt", i915_interrupt_info
, 0},
239 {"i915_gem_hws", i915_hws_info
, 0},
241 #define I915_GEM_DEBUGFS_ENTRIES ARRAY_SIZE(i915_gem_debugfs_list)
243 int i915_gem_debugfs_init(struct drm_minor
*minor
)
245 return drm_debugfs_create_files(i915_gem_debugfs_list
,
246 I915_GEM_DEBUGFS_ENTRIES
,
247 minor
->debugfs_root
, minor
);
250 void i915_gem_debugfs_cleanup(struct drm_minor
*minor
)
252 drm_debugfs_remove_files(i915_gem_debugfs_list
,
253 I915_GEM_DEBUGFS_ENTRIES
, minor
);
256 #endif /* CONFIG_DEBUG_FS */