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
;
72 spinlock_t
*lock
= NULL
;
76 seq_printf(m
, "Active:\n");
77 lock
= &dev_priv
->mm
.active_list_lock
;
79 head
= &dev_priv
->mm
.active_list
;
82 seq_printf(m
, "Inctive:\n");
83 head
= &dev_priv
->mm
.inactive_list
;
86 seq_printf(m
, "Flushing:\n");
87 head
= &dev_priv
->mm
.flushing_list
;
90 DRM_INFO("Ooops, unexpected list\n");
94 list_for_each_entry(obj_priv
, head
, list
)
96 struct drm_gem_object
*obj
= obj_priv
->obj
;
98 seq_printf(m
, " %p: %s %08x %08x %d",
100 get_pin_flag(obj_priv
),
101 obj
->read_domains
, obj
->write_domain
,
102 obj_priv
->last_rendering_seqno
);
105 seq_printf(m
, " (name: %d)", obj
->name
);
106 if (obj_priv
->fence_reg
!= I915_FENCE_REG_NONE
)
107 seq_printf(m
, " (fence: %d\n", obj_priv
->fence_reg
);
116 static int i915_gem_request_info(struct seq_file
*m
, void *data
)
118 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
119 struct drm_device
*dev
= node
->minor
->dev
;
120 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
121 struct drm_i915_gem_request
*gem_request
;
123 seq_printf(m
, "Request:\n");
124 list_for_each_entry(gem_request
, &dev_priv
->mm
.request_list
, list
) {
125 seq_printf(m
, " %d @ %d\n",
127 (int) (jiffies
- gem_request
->emitted_jiffies
));
132 static int i915_gem_seqno_info(struct seq_file
*m
, void *data
)
134 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
135 struct drm_device
*dev
= node
->minor
->dev
;
136 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
138 if (dev_priv
->hw_status_page
!= NULL
) {
139 seq_printf(m
, "Current sequence: %d\n",
140 i915_get_gem_seqno(dev
));
142 seq_printf(m
, "Current sequence: hws uninitialized\n");
144 seq_printf(m
, "Waiter sequence: %d\n",
145 dev_priv
->mm
.waiting_gem_seqno
);
146 seq_printf(m
, "IRQ sequence: %d\n", dev_priv
->mm
.irq_gem_seqno
);
151 static int i915_interrupt_info(struct seq_file
*m
, void *data
)
153 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
154 struct drm_device
*dev
= node
->minor
->dev
;
155 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
157 seq_printf(m
, "Interrupt enable: %08x\n",
159 seq_printf(m
, "Interrupt identity: %08x\n",
161 seq_printf(m
, "Interrupt mask: %08x\n",
163 seq_printf(m
, "Pipe A stat: %08x\n",
164 I915_READ(PIPEASTAT
));
165 seq_printf(m
, "Pipe B stat: %08x\n",
166 I915_READ(PIPEBSTAT
));
167 seq_printf(m
, "Interrupts received: %d\n",
168 atomic_read(&dev_priv
->irq_received
));
169 if (dev_priv
->hw_status_page
!= NULL
) {
170 seq_printf(m
, "Current sequence: %d\n",
171 i915_get_gem_seqno(dev
));
173 seq_printf(m
, "Current sequence: hws uninitialized\n");
175 seq_printf(m
, "Waiter sequence: %d\n",
176 dev_priv
->mm
.waiting_gem_seqno
);
177 seq_printf(m
, "IRQ sequence: %d\n",
178 dev_priv
->mm
.irq_gem_seqno
);
182 static int i915_gem_fence_regs_info(struct seq_file
*m
, void *data
)
184 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
185 struct drm_device
*dev
= node
->minor
->dev
;
186 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
189 seq_printf(m
, "Reserved fences = %d\n", dev_priv
->fence_reg_start
);
190 seq_printf(m
, "Total fences = %d\n", dev_priv
->num_fence_regs
);
191 for (i
= 0; i
< dev_priv
->num_fence_regs
; i
++) {
192 struct drm_gem_object
*obj
= dev_priv
->fence_regs
[i
].obj
;
195 seq_printf(m
, "Fenced object[%2d] = unused\n", i
);
197 struct drm_i915_gem_object
*obj_priv
;
199 obj_priv
= obj
->driver_private
;
200 seq_printf(m
, "Fenced object[%2d] = %p: %s "
201 "%08x %08zx %08x %s %08x %08x %d",
202 i
, obj
, get_pin_flag(obj_priv
),
203 obj_priv
->gtt_offset
,
204 obj
->size
, obj_priv
->stride
,
205 get_tiling_flag(obj_priv
),
206 obj
->read_domains
, obj
->write_domain
,
207 obj_priv
->last_rendering_seqno
);
209 seq_printf(m
, " (name: %d)", obj
->name
);
217 static int i915_hws_info(struct seq_file
*m
, void *data
)
219 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
220 struct drm_device
*dev
= node
->minor
->dev
;
221 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
225 hws
= (volatile u32
*)dev_priv
->hw_status_page
;
229 for (i
= 0; i
< 4096 / sizeof(u32
) / 4; i
+= 4) {
230 seq_printf(m
, "0x%08x: 0x%08x 0x%08x 0x%08x 0x%08x\n",
232 hws
[i
], hws
[i
+ 1], hws
[i
+ 2], hws
[i
+ 3]);
237 static struct drm_info_list i915_gem_debugfs_list
[] = {
238 {"i915_gem_active", i915_gem_object_list_info
, 0, (void *) ACTIVE_LIST
},
239 {"i915_gem_flushing", i915_gem_object_list_info
, 0, (void *) FLUSHING_LIST
},
240 {"i915_gem_inactive", i915_gem_object_list_info
, 0, (void *) INACTIVE_LIST
},
241 {"i915_gem_request", i915_gem_request_info
, 0},
242 {"i915_gem_seqno", i915_gem_seqno_info
, 0},
243 {"i915_gem_fence_regs", i915_gem_fence_regs_info
, 0},
244 {"i915_gem_interrupt", i915_interrupt_info
, 0},
245 {"i915_gem_hws", i915_hws_info
, 0},
247 #define I915_GEM_DEBUGFS_ENTRIES ARRAY_SIZE(i915_gem_debugfs_list)
249 int i915_gem_debugfs_init(struct drm_minor
*minor
)
251 return drm_debugfs_create_files(i915_gem_debugfs_list
,
252 I915_GEM_DEBUGFS_ENTRIES
,
253 minor
->debugfs_root
, minor
);
256 void i915_gem_debugfs_cleanup(struct drm_minor
*minor
)
258 drm_debugfs_remove_files(i915_gem_debugfs_list
,
259 I915_GEM_DEBUGFS_ENTRIES
, minor
);
262 #endif /* CONFIG_DEBUG_FS */