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>
30 #include <linux/debugfs.h>
31 #include <linux/slab.h>
34 #include "intel_drv.h"
38 #define DRM_I915_RING_DEBUG 1
41 #if defined(CONFIG_DEBUG_FS)
44 #define FLUSHING_LIST 2
45 #define INACTIVE_LIST 3
47 static const char *get_pin_flag(struct drm_i915_gem_object
*obj_priv
)
49 if (obj_priv
->user_pin_count
> 0)
51 else if (obj_priv
->pin_count
> 0)
57 static const char *get_tiling_flag(struct drm_i915_gem_object
*obj_priv
)
59 switch (obj_priv
->tiling_mode
) {
61 case I915_TILING_NONE
: return " ";
62 case I915_TILING_X
: return "X";
63 case I915_TILING_Y
: return "Y";
67 static int i915_gem_object_list_info(struct seq_file
*m
, void *data
)
69 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
70 uintptr_t list
= (uintptr_t) node
->info_ent
->data
;
71 struct list_head
*head
;
72 struct drm_device
*dev
= node
->minor
->dev
;
73 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
74 struct drm_i915_gem_object
*obj_priv
;
75 spinlock_t
*lock
= NULL
;
79 seq_printf(m
, "Active:\n");
80 lock
= &dev_priv
->mm
.active_list_lock
;
81 head
= &dev_priv
->render_ring
.active_list
;
84 seq_printf(m
, "Inactive:\n");
85 head
= &dev_priv
->mm
.inactive_list
;
88 seq_printf(m
, "Flushing:\n");
89 head
= &dev_priv
->mm
.flushing_list
;
92 DRM_INFO("Ooops, unexpected list\n");
98 list_for_each_entry(obj_priv
, head
, list
)
100 seq_printf(m
, " %p: %s %8zd %08x %08x %d%s%s",
102 get_pin_flag(obj_priv
),
104 obj_priv
->base
.read_domains
,
105 obj_priv
->base
.write_domain
,
106 obj_priv
->last_rendering_seqno
,
107 obj_priv
->dirty
? " dirty" : "",
108 obj_priv
->madv
== I915_MADV_DONTNEED
? " purgeable" : "");
110 if (obj_priv
->base
.name
)
111 seq_printf(m
, " (name: %d)", obj_priv
->base
.name
);
112 if (obj_priv
->fence_reg
!= I915_FENCE_REG_NONE
)
113 seq_printf(m
, " (fence: %d)", obj_priv
->fence_reg
);
114 if (obj_priv
->gtt_space
!= NULL
)
115 seq_printf(m
, " (gtt_offset: %08x)", obj_priv
->gtt_offset
);
125 static int i915_gem_pageflip_info(struct seq_file
*m
, void *data
)
127 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
128 struct drm_device
*dev
= node
->minor
->dev
;
130 struct intel_crtc
*crtc
;
132 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, base
.head
) {
133 const char *pipe
= crtc
->pipe
? "B" : "A";
134 const char *plane
= crtc
->plane
? "B" : "A";
135 struct intel_unpin_work
*work
;
137 spin_lock_irqsave(&dev
->event_lock
, flags
);
138 work
= crtc
->unpin_work
;
140 seq_printf(m
, "No flip due on pipe %s (plane %s)\n",
143 if (!work
->pending
) {
144 seq_printf(m
, "Flip queued on pipe %s (plane %s)\n",
147 seq_printf(m
, "Flip pending (waiting for vsync) on pipe %s (plane %s)\n",
150 if (work
->enable_stall_check
)
151 seq_printf(m
, "Stall check enabled, ");
153 seq_printf(m
, "Stall check waiting for page flip ioctl, ");
154 seq_printf(m
, "%d prepares\n", work
->pending
);
156 if (work
->old_fb_obj
) {
157 struct drm_i915_gem_object
*obj_priv
= to_intel_bo(work
->old_fb_obj
);
159 seq_printf(m
, "Old framebuffer gtt_offset 0x%08x\n", obj_priv
->gtt_offset
);
161 if (work
->pending_flip_obj
) {
162 struct drm_i915_gem_object
*obj_priv
= to_intel_bo(work
->pending_flip_obj
);
164 seq_printf(m
, "New framebuffer gtt_offset 0x%08x\n", obj_priv
->gtt_offset
);
167 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
173 static int i915_gem_request_info(struct seq_file
*m
, void *data
)
175 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
176 struct drm_device
*dev
= node
->minor
->dev
;
177 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
178 struct drm_i915_gem_request
*gem_request
;
180 seq_printf(m
, "Request:\n");
181 list_for_each_entry(gem_request
, &dev_priv
->render_ring
.request_list
,
183 seq_printf(m
, " %d @ %d\n",
185 (int) (jiffies
- gem_request
->emitted_jiffies
));
190 static int i915_gem_seqno_info(struct seq_file
*m
, void *data
)
192 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
193 struct drm_device
*dev
= node
->minor
->dev
;
194 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
196 if (dev_priv
->render_ring
.status_page
.page_addr
!= NULL
) {
197 seq_printf(m
, "Current sequence: %d\n",
198 i915_get_gem_seqno(dev
, &dev_priv
->render_ring
));
200 seq_printf(m
, "Current sequence: hws uninitialized\n");
202 seq_printf(m
, "Waiter sequence: %d\n",
203 dev_priv
->mm
.waiting_gem_seqno
);
204 seq_printf(m
, "IRQ sequence: %d\n", dev_priv
->mm
.irq_gem_seqno
);
209 static int i915_interrupt_info(struct seq_file
*m
, void *data
)
211 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
212 struct drm_device
*dev
= node
->minor
->dev
;
213 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
215 if (!HAS_PCH_SPLIT(dev
)) {
216 seq_printf(m
, "Interrupt enable: %08x\n",
218 seq_printf(m
, "Interrupt identity: %08x\n",
220 seq_printf(m
, "Interrupt mask: %08x\n",
222 seq_printf(m
, "Pipe A stat: %08x\n",
223 I915_READ(PIPEASTAT
));
224 seq_printf(m
, "Pipe B stat: %08x\n",
225 I915_READ(PIPEBSTAT
));
227 seq_printf(m
, "North Display Interrupt enable: %08x\n",
229 seq_printf(m
, "North Display Interrupt identity: %08x\n",
231 seq_printf(m
, "North Display Interrupt mask: %08x\n",
233 seq_printf(m
, "South Display Interrupt enable: %08x\n",
235 seq_printf(m
, "South Display Interrupt identity: %08x\n",
237 seq_printf(m
, "South Display Interrupt mask: %08x\n",
239 seq_printf(m
, "Graphics Interrupt enable: %08x\n",
241 seq_printf(m
, "Graphics Interrupt identity: %08x\n",
243 seq_printf(m
, "Graphics Interrupt mask: %08x\n",
246 seq_printf(m
, "Interrupts received: %d\n",
247 atomic_read(&dev_priv
->irq_received
));
248 if (dev_priv
->render_ring
.status_page
.page_addr
!= NULL
) {
249 seq_printf(m
, "Current sequence: %d\n",
250 i915_get_gem_seqno(dev
, &dev_priv
->render_ring
));
252 seq_printf(m
, "Current sequence: hws uninitialized\n");
254 seq_printf(m
, "Waiter sequence: %d\n",
255 dev_priv
->mm
.waiting_gem_seqno
);
256 seq_printf(m
, "IRQ sequence: %d\n",
257 dev_priv
->mm
.irq_gem_seqno
);
261 static int i915_gem_fence_regs_info(struct seq_file
*m
, void *data
)
263 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
264 struct drm_device
*dev
= node
->minor
->dev
;
265 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
268 seq_printf(m
, "Reserved fences = %d\n", dev_priv
->fence_reg_start
);
269 seq_printf(m
, "Total fences = %d\n", dev_priv
->num_fence_regs
);
270 for (i
= 0; i
< dev_priv
->num_fence_regs
; i
++) {
271 struct drm_gem_object
*obj
= dev_priv
->fence_regs
[i
].obj
;
274 seq_printf(m
, "Fenced object[%2d] = unused\n", i
);
276 struct drm_i915_gem_object
*obj_priv
;
278 obj_priv
= to_intel_bo(obj
);
279 seq_printf(m
, "Fenced object[%2d] = %p: %s "
280 "%08x %08zx %08x %s %08x %08x %d",
281 i
, obj
, get_pin_flag(obj_priv
),
282 obj_priv
->gtt_offset
,
283 obj
->size
, obj_priv
->stride
,
284 get_tiling_flag(obj_priv
),
285 obj
->read_domains
, obj
->write_domain
,
286 obj_priv
->last_rendering_seqno
);
288 seq_printf(m
, " (name: %d)", obj
->name
);
296 static int i915_hws_info(struct seq_file
*m
, void *data
)
298 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
299 struct drm_device
*dev
= node
->minor
->dev
;
300 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
304 hws
= (volatile u32
*)dev_priv
->render_ring
.status_page
.page_addr
;
308 for (i
= 0; i
< 4096 / sizeof(u32
) / 4; i
+= 4) {
309 seq_printf(m
, "0x%08x: 0x%08x 0x%08x 0x%08x 0x%08x\n",
311 hws
[i
], hws
[i
+ 1], hws
[i
+ 2], hws
[i
+ 3]);
316 static void i915_dump_pages(struct seq_file
*m
, struct page
**pages
, int page_count
)
321 for (page
= 0; page
< page_count
; page
++) {
322 mem
= kmap_atomic(pages
[page
], KM_USER0
);
323 for (i
= 0; i
< PAGE_SIZE
; i
+= 4)
324 seq_printf(m
, "%08x : %08x\n", i
, mem
[i
/ 4]);
325 kunmap_atomic(mem
, KM_USER0
);
329 static int i915_batchbuffer_info(struct seq_file
*m
, void *data
)
331 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
332 struct drm_device
*dev
= node
->minor
->dev
;
333 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
334 struct drm_gem_object
*obj
;
335 struct drm_i915_gem_object
*obj_priv
;
338 spin_lock(&dev_priv
->mm
.active_list_lock
);
340 list_for_each_entry(obj_priv
, &dev_priv
->render_ring
.active_list
,
342 obj
= &obj_priv
->base
;
343 if (obj
->read_domains
& I915_GEM_DOMAIN_COMMAND
) {
344 ret
= i915_gem_object_get_pages(obj
, 0);
346 DRM_ERROR("Failed to get pages: %d\n", ret
);
347 spin_unlock(&dev_priv
->mm
.active_list_lock
);
351 seq_printf(m
, "--- gtt_offset = 0x%08x\n", obj_priv
->gtt_offset
);
352 i915_dump_pages(m
, obj_priv
->pages
, obj
->size
/ PAGE_SIZE
);
354 i915_gem_object_put_pages(obj
);
358 spin_unlock(&dev_priv
->mm
.active_list_lock
);
363 static int i915_ringbuffer_data(struct seq_file
*m
, void *data
)
365 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
366 struct drm_device
*dev
= node
->minor
->dev
;
367 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
371 if (!dev_priv
->render_ring
.gem_object
) {
372 seq_printf(m
, "No ringbuffer setup\n");
376 virt
= dev_priv
->render_ring
.virtual_start
;
378 for (off
= 0; off
< dev_priv
->render_ring
.size
; off
+= 4) {
379 ptr
= (uint32_t *)(virt
+ off
);
380 seq_printf(m
, "%08x : %08x\n", off
, *ptr
);
386 static int i915_ringbuffer_info(struct seq_file
*m
, void *data
)
388 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
389 struct drm_device
*dev
= node
->minor
->dev
;
390 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
391 unsigned int head
, tail
;
393 head
= I915_READ(PRB0_HEAD
) & HEAD_ADDR
;
394 tail
= I915_READ(PRB0_TAIL
) & TAIL_ADDR
;
396 seq_printf(m
, "RingHead : %08x\n", head
);
397 seq_printf(m
, "RingTail : %08x\n", tail
);
398 seq_printf(m
, "RingSize : %08lx\n", dev_priv
->render_ring
.size
);
399 seq_printf(m
, "Acthd : %08x\n", I915_READ(IS_I965G(dev
) ? ACTHD_I965
: ACTHD
));
404 static const char *pin_flag(int pinned
)
414 static const char *tiling_flag(int tiling
)
418 case I915_TILING_NONE
: return "";
419 case I915_TILING_X
: return " X";
420 case I915_TILING_Y
: return " Y";
424 static const char *dirty_flag(int dirty
)
426 return dirty
? " dirty" : "";
429 static const char *purgeable_flag(int purgeable
)
431 return purgeable
? " purgeable" : "";
434 static int i915_error_state(struct seq_file
*m
, void *unused
)
436 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
437 struct drm_device
*dev
= node
->minor
->dev
;
438 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
439 struct drm_i915_error_state
*error
;
441 int i
, page
, offset
, elt
;
443 spin_lock_irqsave(&dev_priv
->error_lock
, flags
);
444 if (!dev_priv
->first_error
) {
445 seq_printf(m
, "no error state collected\n");
449 error
= dev_priv
->first_error
;
451 seq_printf(m
, "Time: %ld s %ld us\n", error
->time
.tv_sec
,
452 error
->time
.tv_usec
);
453 seq_printf(m
, "PCI ID: 0x%04x\n", dev
->pci_device
);
454 seq_printf(m
, "EIR: 0x%08x\n", error
->eir
);
455 seq_printf(m
, " PGTBL_ER: 0x%08x\n", error
->pgtbl_er
);
456 seq_printf(m
, " INSTPM: 0x%08x\n", error
->instpm
);
457 seq_printf(m
, " IPEIR: 0x%08x\n", error
->ipeir
);
458 seq_printf(m
, " IPEHR: 0x%08x\n", error
->ipehr
);
459 seq_printf(m
, " INSTDONE: 0x%08x\n", error
->instdone
);
460 seq_printf(m
, " ACTHD: 0x%08x\n", error
->acthd
);
462 seq_printf(m
, " INSTPS: 0x%08x\n", error
->instps
);
463 seq_printf(m
, " INSTDONE1: 0x%08x\n", error
->instdone1
);
465 seq_printf(m
, "seqno: 0x%08x\n", error
->seqno
);
467 if (error
->active_bo_count
) {
468 seq_printf(m
, "Buffers [%d]:\n", error
->active_bo_count
);
470 for (i
= 0; i
< error
->active_bo_count
; i
++) {
471 seq_printf(m
, " %08x %8zd %08x %08x %08x%s%s%s%s",
472 error
->active_bo
[i
].gtt_offset
,
473 error
->active_bo
[i
].size
,
474 error
->active_bo
[i
].read_domains
,
475 error
->active_bo
[i
].write_domain
,
476 error
->active_bo
[i
].seqno
,
477 pin_flag(error
->active_bo
[i
].pinned
),
478 tiling_flag(error
->active_bo
[i
].tiling
),
479 dirty_flag(error
->active_bo
[i
].dirty
),
480 purgeable_flag(error
->active_bo
[i
].purgeable
));
482 if (error
->active_bo
[i
].name
)
483 seq_printf(m
, " (name: %d)", error
->active_bo
[i
].name
);
484 if (error
->active_bo
[i
].fence_reg
!= I915_FENCE_REG_NONE
)
485 seq_printf(m
, " (fence: %d)", error
->active_bo
[i
].fence_reg
);
491 for (i
= 0; i
< ARRAY_SIZE(error
->batchbuffer
); i
++) {
492 if (error
->batchbuffer
[i
]) {
493 struct drm_i915_error_object
*obj
= error
->batchbuffer
[i
];
495 seq_printf(m
, "--- gtt_offset = 0x%08x\n", obj
->gtt_offset
);
497 for (page
= 0; page
< obj
->page_count
; page
++) {
498 for (elt
= 0; elt
< PAGE_SIZE
/4; elt
++) {
499 seq_printf(m
, "%08x : %08x\n", offset
, obj
->pages
[page
][elt
]);
506 if (error
->ringbuffer
) {
507 struct drm_i915_error_object
*obj
= error
->ringbuffer
;
509 seq_printf(m
, "--- ringbuffer = 0x%08x\n", obj
->gtt_offset
);
511 for (page
= 0; page
< obj
->page_count
; page
++) {
512 for (elt
= 0; elt
< PAGE_SIZE
/4; elt
++) {
513 seq_printf(m
, "%08x : %08x\n", offset
, obj
->pages
[page
][elt
]);
520 intel_overlay_print_error_state(m
, error
->overlay
);
523 spin_unlock_irqrestore(&dev_priv
->error_lock
, flags
);
528 static int i915_rstdby_delays(struct seq_file
*m
, void *unused
)
530 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
531 struct drm_device
*dev
= node
->minor
->dev
;
532 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
533 u16 crstanddelay
= I915_READ16(CRSTANDVID
);
535 seq_printf(m
, "w/ctx: %d, w/o ctx: %d\n", (crstanddelay
>> 8) & 0x3f, (crstanddelay
& 0x3f));
540 static int i915_cur_delayinfo(struct seq_file
*m
, void *unused
)
542 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
543 struct drm_device
*dev
= node
->minor
->dev
;
544 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
545 u16 rgvswctl
= I915_READ16(MEMSWCTL
);
546 u16 rgvstat
= I915_READ16(MEMSTAT_ILK
);
548 seq_printf(m
, "Requested P-state: %d\n", (rgvswctl
>> 8) & 0xf);
549 seq_printf(m
, "Requested VID: %d\n", rgvswctl
& 0x3f);
550 seq_printf(m
, "Current VID: %d\n", (rgvstat
& MEMSTAT_VID_MASK
) >>
552 seq_printf(m
, "Current P-state: %d\n",
553 (rgvstat
& MEMSTAT_PSTATE_MASK
) >> MEMSTAT_PSTATE_SHIFT
);
558 static int i915_delayfreq_table(struct seq_file
*m
, void *unused
)
560 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
561 struct drm_device
*dev
= node
->minor
->dev
;
562 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
566 for (i
= 0; i
< 16; i
++) {
567 delayfreq
= I915_READ(PXVFREQ_BASE
+ i
* 4);
568 seq_printf(m
, "P%02dVIDFREQ: 0x%08x (VID: %d)\n", i
, delayfreq
,
569 (delayfreq
& PXVFREQ_PX_MASK
) >> PXVFREQ_PX_SHIFT
);
575 static inline int MAP_TO_MV(int map
)
577 return 1250 - (map
* 25);
580 static int i915_inttoext_table(struct seq_file
*m
, void *unused
)
582 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
583 struct drm_device
*dev
= node
->minor
->dev
;
584 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
588 for (i
= 1; i
<= 32; i
++) {
589 inttoext
= I915_READ(INTTOEXT_BASE_ILK
+ i
* 4);
590 seq_printf(m
, "INTTOEXT%02d: 0x%08x\n", i
, inttoext
);
596 static int i915_drpc_info(struct seq_file
*m
, void *unused
)
598 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
599 struct drm_device
*dev
= node
->minor
->dev
;
600 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
601 u32 rgvmodectl
= I915_READ(MEMMODECTL
);
602 u32 rstdbyctl
= I915_READ(MCHBAR_RENDER_STANDBY
);
603 u16 crstandvid
= I915_READ16(CRSTANDVID
);
605 seq_printf(m
, "HD boost: %s\n", (rgvmodectl
& MEMMODE_BOOST_EN
) ?
607 seq_printf(m
, "Boost freq: %d\n",
608 (rgvmodectl
& MEMMODE_BOOST_FREQ_MASK
) >>
609 MEMMODE_BOOST_FREQ_SHIFT
);
610 seq_printf(m
, "HW control enabled: %s\n",
611 rgvmodectl
& MEMMODE_HWIDLE_EN
? "yes" : "no");
612 seq_printf(m
, "SW control enabled: %s\n",
613 rgvmodectl
& MEMMODE_SWMODE_EN
? "yes" : "no");
614 seq_printf(m
, "Gated voltage change: %s\n",
615 rgvmodectl
& MEMMODE_RCLK_GATE
? "yes" : "no");
616 seq_printf(m
, "Starting frequency: P%d\n",
617 (rgvmodectl
& MEMMODE_FSTART_MASK
) >> MEMMODE_FSTART_SHIFT
);
618 seq_printf(m
, "Max P-state: P%d\n",
619 (rgvmodectl
& MEMMODE_FMAX_MASK
) >> MEMMODE_FMAX_SHIFT
);
620 seq_printf(m
, "Min P-state: P%d\n", (rgvmodectl
& MEMMODE_FMIN_MASK
));
621 seq_printf(m
, "RS1 VID: %d\n", (crstandvid
& 0x3f));
622 seq_printf(m
, "RS2 VID: %d\n", ((crstandvid
>> 8) & 0x3f));
623 seq_printf(m
, "Render standby enabled: %s\n",
624 (rstdbyctl
& RCX_SW_EXIT
) ? "no" : "yes");
629 static int i915_fbc_status(struct seq_file
*m
, void *unused
)
631 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
632 struct drm_device
*dev
= node
->minor
->dev
;
633 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
635 if (!I915_HAS_FBC(dev
)) {
636 seq_printf(m
, "FBC unsupported on this chipset\n");
640 if (intel_fbc_enabled(dev
)) {
641 seq_printf(m
, "FBC enabled\n");
643 seq_printf(m
, "FBC disabled: ");
644 switch (dev_priv
->no_fbc_reason
) {
645 case FBC_STOLEN_TOO_SMALL
:
646 seq_printf(m
, "not enough stolen memory");
648 case FBC_UNSUPPORTED_MODE
:
649 seq_printf(m
, "mode not supported");
651 case FBC_MODE_TOO_LARGE
:
652 seq_printf(m
, "mode too large");
655 seq_printf(m
, "FBC unsupported on plane");
658 seq_printf(m
, "scanout buffer not tiled");
660 case FBC_MULTIPLE_PIPES
:
661 seq_printf(m
, "multiple pipes are enabled");
664 seq_printf(m
, "unknown reason");
671 static int i915_sr_status(struct seq_file
*m
, void *unused
)
673 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
674 struct drm_device
*dev
= node
->minor
->dev
;
675 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
676 bool sr_enabled
= false;
678 if (IS_I965GM(dev
) || IS_I945G(dev
) || IS_I945GM(dev
))
679 sr_enabled
= I915_READ(FW_BLC_SELF
) & FW_BLC_SELF_EN
;
680 else if (IS_I915GM(dev
))
681 sr_enabled
= I915_READ(INSTPM
) & INSTPM_SELF_EN
;
682 else if (IS_PINEVIEW(dev
))
683 sr_enabled
= I915_READ(DSPFW3
) & PINEVIEW_SELF_REFRESH_EN
;
685 seq_printf(m
, "self-refresh: %s\n", sr_enabled
? "enabled" :
691 static int i915_emon_status(struct seq_file
*m
, void *unused
)
693 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
694 struct drm_device
*dev
= node
->minor
->dev
;
695 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
696 unsigned long temp
, chipset
, gfx
;
698 temp
= i915_mch_val(dev_priv
);
699 chipset
= i915_chipset_val(dev_priv
);
700 gfx
= i915_gfx_val(dev_priv
);
702 seq_printf(m
, "GMCH temp: %ld\n", temp
);
703 seq_printf(m
, "Chipset power: %ld\n", chipset
);
704 seq_printf(m
, "GFX power: %ld\n", gfx
);
705 seq_printf(m
, "Total power: %ld\n", chipset
+ gfx
);
710 static int i915_gfxec(struct seq_file
*m
, void *unused
)
712 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
713 struct drm_device
*dev
= node
->minor
->dev
;
714 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
716 seq_printf(m
, "GFXEC: %ld\n", (unsigned long)I915_READ(0x112f4));
722 i915_wedged_open(struct inode
*inode
,
725 filp
->private_data
= inode
->i_private
;
730 i915_wedged_read(struct file
*filp
,
735 struct drm_device
*dev
= filp
->private_data
;
736 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
740 len
= snprintf(buf
, sizeof (buf
),
742 atomic_read(&dev_priv
->mm
.wedged
));
744 return simple_read_from_buffer(ubuf
, max
, ppos
, buf
, len
);
748 i915_wedged_write(struct file
*filp
,
749 const char __user
*ubuf
,
753 struct drm_device
*dev
= filp
->private_data
;
754 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
759 if (cnt
> sizeof (buf
) - 1)
762 if (copy_from_user(buf
, ubuf
, cnt
))
766 val
= simple_strtoul(buf
, NULL
, 0);
769 DRM_INFO("Manually setting wedged to %d\n", val
);
771 atomic_set(&dev_priv
->mm
.wedged
, val
);
773 DRM_WAKEUP(&dev_priv
->irq_queue
);
774 queue_work(dev_priv
->wq
, &dev_priv
->error_work
);
780 static const struct file_operations i915_wedged_fops
= {
781 .owner
= THIS_MODULE
,
782 .open
= i915_wedged_open
,
783 .read
= i915_wedged_read
,
784 .write
= i915_wedged_write
,
785 .llseek
= default_llseek
,
788 /* As the drm_debugfs_init() routines are called before dev->dev_private is
789 * allocated we need to hook into the minor for release. */
791 drm_add_fake_info_node(struct drm_minor
*minor
,
795 struct drm_info_node
*node
;
797 node
= kmalloc(sizeof(struct drm_info_node
), GFP_KERNEL
);
805 node
->info_ent
= (void *) key
;
806 list_add(&node
->list
, &minor
->debugfs_nodes
.list
);
811 static int i915_wedged_create(struct dentry
*root
, struct drm_minor
*minor
)
813 struct drm_device
*dev
= minor
->dev
;
816 ent
= debugfs_create_file("i915_wedged",
823 return drm_add_fake_info_node(minor
, ent
, &i915_wedged_fops
);
826 static struct drm_info_list i915_debugfs_list
[] = {
827 {"i915_gem_active", i915_gem_object_list_info
, 0, (void *) ACTIVE_LIST
},
828 {"i915_gem_flushing", i915_gem_object_list_info
, 0, (void *) FLUSHING_LIST
},
829 {"i915_gem_inactive", i915_gem_object_list_info
, 0, (void *) INACTIVE_LIST
},
830 {"i915_gem_pageflip", i915_gem_pageflip_info
, 0},
831 {"i915_gem_request", i915_gem_request_info
, 0},
832 {"i915_gem_seqno", i915_gem_seqno_info
, 0},
833 {"i915_gem_fence_regs", i915_gem_fence_regs_info
, 0},
834 {"i915_gem_interrupt", i915_interrupt_info
, 0},
835 {"i915_gem_hws", i915_hws_info
, 0},
836 {"i915_ringbuffer_data", i915_ringbuffer_data
, 0},
837 {"i915_ringbuffer_info", i915_ringbuffer_info
, 0},
838 {"i915_batchbuffers", i915_batchbuffer_info
, 0},
839 {"i915_error_state", i915_error_state
, 0},
840 {"i915_rstdby_delays", i915_rstdby_delays
, 0},
841 {"i915_cur_delayinfo", i915_cur_delayinfo
, 0},
842 {"i915_delayfreq_table", i915_delayfreq_table
, 0},
843 {"i915_inttoext_table", i915_inttoext_table
, 0},
844 {"i915_drpc_info", i915_drpc_info
, 0},
845 {"i915_emon_status", i915_emon_status
, 0},
846 {"i915_gfxec", i915_gfxec
, 0},
847 {"i915_fbc_status", i915_fbc_status
, 0},
848 {"i915_sr_status", i915_sr_status
, 0},
850 #define I915_DEBUGFS_ENTRIES ARRAY_SIZE(i915_debugfs_list)
852 int i915_debugfs_init(struct drm_minor
*minor
)
856 ret
= i915_wedged_create(minor
->debugfs_root
, minor
);
860 return drm_debugfs_create_files(i915_debugfs_list
,
861 I915_DEBUGFS_ENTRIES
,
862 minor
->debugfs_root
, minor
);
865 void i915_debugfs_cleanup(struct drm_minor
*minor
)
867 drm_debugfs_remove_files(i915_debugfs_list
,
868 I915_DEBUGFS_ENTRIES
, minor
);
869 drm_debugfs_remove_files((struct drm_info_list
*) &i915_wedged_fops
,
873 #endif /* CONFIG_DEBUG_FS */