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>
32 #include <linux/export.h>
35 #include "intel_drv.h"
36 #include "intel_ringbuffer.h"
40 #define DRM_I915_RING_DEBUG 1
43 #if defined(CONFIG_DEBUG_FS)
53 static const char *yesno(int v
)
55 return v
? "yes" : "no";
58 static int i915_capabilities(struct seq_file
*m
, void *data
)
60 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
61 struct drm_device
*dev
= node
->minor
->dev
;
62 const struct intel_device_info
*info
= INTEL_INFO(dev
);
64 seq_printf(m
, "gen: %d\n", info
->gen
);
65 #define B(x) seq_printf(m, #x ": %s\n", yesno(info->x))
79 B(cursor_needs_physical
);
81 B(overlay_needs_physical
);
90 static const char *get_pin_flag(struct drm_i915_gem_object
*obj
)
92 if (obj
->user_pin_count
> 0)
94 else if (obj
->pin_count
> 0)
100 static const char *get_tiling_flag(struct drm_i915_gem_object
*obj
)
102 switch (obj
->tiling_mode
) {
104 case I915_TILING_NONE
: return " ";
105 case I915_TILING_X
: return "X";
106 case I915_TILING_Y
: return "Y";
110 static const char *cache_level_str(int type
)
113 case I915_CACHE_NONE
: return " uncached";
114 case I915_CACHE_LLC
: return " snooped (LLC)";
115 case I915_CACHE_LLC_MLC
: return " snooped (LLC+MLC)";
121 describe_obj(struct seq_file
*m
, struct drm_i915_gem_object
*obj
)
123 seq_printf(m
, "%p: %s%s %8zd %04x %04x %d %d%s%s%s",
126 get_tiling_flag(obj
),
128 obj
->base
.read_domains
,
129 obj
->base
.write_domain
,
130 obj
->last_rendering_seqno
,
131 obj
->last_fenced_seqno
,
132 cache_level_str(obj
->cache_level
),
133 obj
->dirty
? " dirty" : "",
134 obj
->madv
== I915_MADV_DONTNEED
? " purgeable" : "");
136 seq_printf(m
, " (name: %d)", obj
->base
.name
);
137 if (obj
->fence_reg
!= I915_FENCE_REG_NONE
)
138 seq_printf(m
, " (fence: %d)", obj
->fence_reg
);
139 if (obj
->gtt_space
!= NULL
)
140 seq_printf(m
, " (gtt offset: %08x, size: %08x)",
141 obj
->gtt_offset
, (unsigned int)obj
->gtt_space
->size
);
142 if (obj
->pin_mappable
|| obj
->fault_mappable
) {
144 if (obj
->pin_mappable
)
146 if (obj
->fault_mappable
)
149 seq_printf(m
, " (%s mappable)", s
);
151 if (obj
->ring
!= NULL
)
152 seq_printf(m
, " (%s)", obj
->ring
->name
);
155 static int i915_gem_object_list_info(struct seq_file
*m
, void *data
)
157 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
158 uintptr_t list
= (uintptr_t) node
->info_ent
->data
;
159 struct list_head
*head
;
160 struct drm_device
*dev
= node
->minor
->dev
;
161 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
162 struct drm_i915_gem_object
*obj
;
163 size_t total_obj_size
, total_gtt_size
;
166 ret
= mutex_lock_interruptible(&dev
->struct_mutex
);
172 seq_printf(m
, "Active:\n");
173 head
= &dev_priv
->mm
.active_list
;
176 seq_printf(m
, "Inactive:\n");
177 head
= &dev_priv
->mm
.inactive_list
;
180 seq_printf(m
, "Pinned:\n");
181 head
= &dev_priv
->mm
.pinned_list
;
184 seq_printf(m
, "Flushing:\n");
185 head
= &dev_priv
->mm
.flushing_list
;
187 case DEFERRED_FREE_LIST
:
188 seq_printf(m
, "Deferred free:\n");
189 head
= &dev_priv
->mm
.deferred_free_list
;
192 mutex_unlock(&dev
->struct_mutex
);
196 total_obj_size
= total_gtt_size
= count
= 0;
197 list_for_each_entry(obj
, head
, mm_list
) {
199 describe_obj(m
, obj
);
201 total_obj_size
+= obj
->base
.size
;
202 total_gtt_size
+= obj
->gtt_space
->size
;
205 mutex_unlock(&dev
->struct_mutex
);
207 seq_printf(m
, "Total %d objects, %zu bytes, %zu GTT size\n",
208 count
, total_obj_size
, total_gtt_size
);
212 #define count_objects(list, member) do { \
213 list_for_each_entry(obj, list, member) { \
214 size += obj->gtt_space->size; \
216 if (obj->map_and_fenceable) { \
217 mappable_size += obj->gtt_space->size; \
223 static int i915_gem_object_info(struct seq_file
*m
, void* data
)
225 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
226 struct drm_device
*dev
= node
->minor
->dev
;
227 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
228 u32 count
, mappable_count
;
229 size_t size
, mappable_size
;
230 struct drm_i915_gem_object
*obj
;
233 ret
= mutex_lock_interruptible(&dev
->struct_mutex
);
237 seq_printf(m
, "%u objects, %zu bytes\n",
238 dev_priv
->mm
.object_count
,
239 dev_priv
->mm
.object_memory
);
241 size
= count
= mappable_size
= mappable_count
= 0;
242 count_objects(&dev_priv
->mm
.gtt_list
, gtt_list
);
243 seq_printf(m
, "%u [%u] objects, %zu [%zu] bytes in gtt\n",
244 count
, mappable_count
, size
, mappable_size
);
246 size
= count
= mappable_size
= mappable_count
= 0;
247 count_objects(&dev_priv
->mm
.active_list
, mm_list
);
248 count_objects(&dev_priv
->mm
.flushing_list
, mm_list
);
249 seq_printf(m
, " %u [%u] active objects, %zu [%zu] bytes\n",
250 count
, mappable_count
, size
, mappable_size
);
252 size
= count
= mappable_size
= mappable_count
= 0;
253 count_objects(&dev_priv
->mm
.pinned_list
, mm_list
);
254 seq_printf(m
, " %u [%u] pinned objects, %zu [%zu] bytes\n",
255 count
, mappable_count
, size
, mappable_size
);
257 size
= count
= mappable_size
= mappable_count
= 0;
258 count_objects(&dev_priv
->mm
.inactive_list
, mm_list
);
259 seq_printf(m
, " %u [%u] inactive objects, %zu [%zu] bytes\n",
260 count
, mappable_count
, size
, mappable_size
);
262 size
= count
= mappable_size
= mappable_count
= 0;
263 count_objects(&dev_priv
->mm
.deferred_free_list
, mm_list
);
264 seq_printf(m
, " %u [%u] freed objects, %zu [%zu] bytes\n",
265 count
, mappable_count
, size
, mappable_size
);
267 size
= count
= mappable_size
= mappable_count
= 0;
268 list_for_each_entry(obj
, &dev_priv
->mm
.gtt_list
, gtt_list
) {
269 if (obj
->fault_mappable
) {
270 size
+= obj
->gtt_space
->size
;
273 if (obj
->pin_mappable
) {
274 mappable_size
+= obj
->gtt_space
->size
;
278 seq_printf(m
, "%u pinned mappable objects, %zu bytes\n",
279 mappable_count
, mappable_size
);
280 seq_printf(m
, "%u fault mappable objects, %zu bytes\n",
283 seq_printf(m
, "%zu [%zu] gtt total\n",
284 dev_priv
->mm
.gtt_total
, dev_priv
->mm
.mappable_gtt_total
);
286 mutex_unlock(&dev
->struct_mutex
);
291 static int i915_gem_gtt_info(struct seq_file
*m
, void* data
)
293 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
294 struct drm_device
*dev
= node
->minor
->dev
;
295 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
296 struct drm_i915_gem_object
*obj
;
297 size_t total_obj_size
, total_gtt_size
;
300 ret
= mutex_lock_interruptible(&dev
->struct_mutex
);
304 total_obj_size
= total_gtt_size
= count
= 0;
305 list_for_each_entry(obj
, &dev_priv
->mm
.gtt_list
, gtt_list
) {
307 describe_obj(m
, obj
);
309 total_obj_size
+= obj
->base
.size
;
310 total_gtt_size
+= obj
->gtt_space
->size
;
314 mutex_unlock(&dev
->struct_mutex
);
316 seq_printf(m
, "Total %d objects, %zu bytes, %zu GTT size\n",
317 count
, total_obj_size
, total_gtt_size
);
323 static int i915_gem_pageflip_info(struct seq_file
*m
, void *data
)
325 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
326 struct drm_device
*dev
= node
->minor
->dev
;
328 struct intel_crtc
*crtc
;
330 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, base
.head
) {
331 const char pipe
= pipe_name(crtc
->pipe
);
332 const char plane
= plane_name(crtc
->plane
);
333 struct intel_unpin_work
*work
;
335 spin_lock_irqsave(&dev
->event_lock
, flags
);
336 work
= crtc
->unpin_work
;
338 seq_printf(m
, "No flip due on pipe %c (plane %c)\n",
341 if (!work
->pending
) {
342 seq_printf(m
, "Flip queued on pipe %c (plane %c)\n",
345 seq_printf(m
, "Flip pending (waiting for vsync) on pipe %c (plane %c)\n",
348 if (work
->enable_stall_check
)
349 seq_printf(m
, "Stall check enabled, ");
351 seq_printf(m
, "Stall check waiting for page flip ioctl, ");
352 seq_printf(m
, "%d prepares\n", work
->pending
);
354 if (work
->old_fb_obj
) {
355 struct drm_i915_gem_object
*obj
= work
->old_fb_obj
;
357 seq_printf(m
, "Old framebuffer gtt_offset 0x%08x\n", obj
->gtt_offset
);
359 if (work
->pending_flip_obj
) {
360 struct drm_i915_gem_object
*obj
= work
->pending_flip_obj
;
362 seq_printf(m
, "New framebuffer gtt_offset 0x%08x\n", obj
->gtt_offset
);
365 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
371 static int i915_gem_request_info(struct seq_file
*m
, void *data
)
373 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
374 struct drm_device
*dev
= node
->minor
->dev
;
375 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
376 struct drm_i915_gem_request
*gem_request
;
379 ret
= mutex_lock_interruptible(&dev
->struct_mutex
);
384 if (!list_empty(&dev_priv
->ring
[RCS
].request_list
)) {
385 seq_printf(m
, "Render requests:\n");
386 list_for_each_entry(gem_request
,
387 &dev_priv
->ring
[RCS
].request_list
,
389 seq_printf(m
, " %d @ %d\n",
391 (int) (jiffies
- gem_request
->emitted_jiffies
));
395 if (!list_empty(&dev_priv
->ring
[VCS
].request_list
)) {
396 seq_printf(m
, "BSD requests:\n");
397 list_for_each_entry(gem_request
,
398 &dev_priv
->ring
[VCS
].request_list
,
400 seq_printf(m
, " %d @ %d\n",
402 (int) (jiffies
- gem_request
->emitted_jiffies
));
406 if (!list_empty(&dev_priv
->ring
[BCS
].request_list
)) {
407 seq_printf(m
, "BLT requests:\n");
408 list_for_each_entry(gem_request
,
409 &dev_priv
->ring
[BCS
].request_list
,
411 seq_printf(m
, " %d @ %d\n",
413 (int) (jiffies
- gem_request
->emitted_jiffies
));
417 mutex_unlock(&dev
->struct_mutex
);
420 seq_printf(m
, "No requests\n");
425 static void i915_ring_seqno_info(struct seq_file
*m
,
426 struct intel_ring_buffer
*ring
)
428 if (ring
->get_seqno
) {
429 seq_printf(m
, "Current sequence (%s): %d\n",
430 ring
->name
, ring
->get_seqno(ring
));
431 seq_printf(m
, "Waiter sequence (%s): %d\n",
432 ring
->name
, ring
->waiting_seqno
);
433 seq_printf(m
, "IRQ sequence (%s): %d\n",
434 ring
->name
, ring
->irq_seqno
);
438 static int i915_gem_seqno_info(struct seq_file
*m
, void *data
)
440 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
441 struct drm_device
*dev
= node
->minor
->dev
;
442 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
445 ret
= mutex_lock_interruptible(&dev
->struct_mutex
);
449 for (i
= 0; i
< I915_NUM_RINGS
; i
++)
450 i915_ring_seqno_info(m
, &dev_priv
->ring
[i
]);
452 mutex_unlock(&dev
->struct_mutex
);
458 static int i915_interrupt_info(struct seq_file
*m
, void *data
)
460 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
461 struct drm_device
*dev
= node
->minor
->dev
;
462 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
465 ret
= mutex_lock_interruptible(&dev
->struct_mutex
);
469 if (!HAS_PCH_SPLIT(dev
)) {
470 seq_printf(m
, "Interrupt enable: %08x\n",
472 seq_printf(m
, "Interrupt identity: %08x\n",
474 seq_printf(m
, "Interrupt mask: %08x\n",
477 seq_printf(m
, "Pipe %c stat: %08x\n",
479 I915_READ(PIPESTAT(pipe
)));
481 seq_printf(m
, "North Display Interrupt enable: %08x\n",
483 seq_printf(m
, "North Display Interrupt identity: %08x\n",
485 seq_printf(m
, "North Display Interrupt mask: %08x\n",
487 seq_printf(m
, "South Display Interrupt enable: %08x\n",
489 seq_printf(m
, "South Display Interrupt identity: %08x\n",
491 seq_printf(m
, "South Display Interrupt mask: %08x\n",
493 seq_printf(m
, "Graphics Interrupt enable: %08x\n",
495 seq_printf(m
, "Graphics Interrupt identity: %08x\n",
497 seq_printf(m
, "Graphics Interrupt mask: %08x\n",
500 seq_printf(m
, "Interrupts received: %d\n",
501 atomic_read(&dev_priv
->irq_received
));
502 for (i
= 0; i
< I915_NUM_RINGS
; i
++) {
503 if (IS_GEN6(dev
) || IS_GEN7(dev
)) {
504 seq_printf(m
, "Graphics Interrupt mask (%s): %08x\n",
505 dev_priv
->ring
[i
].name
,
506 I915_READ_IMR(&dev_priv
->ring
[i
]));
508 i915_ring_seqno_info(m
, &dev_priv
->ring
[i
]);
510 mutex_unlock(&dev
->struct_mutex
);
515 static int i915_gem_fence_regs_info(struct seq_file
*m
, void *data
)
517 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
518 struct drm_device
*dev
= node
->minor
->dev
;
519 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
522 ret
= mutex_lock_interruptible(&dev
->struct_mutex
);
526 seq_printf(m
, "Reserved fences = %d\n", dev_priv
->fence_reg_start
);
527 seq_printf(m
, "Total fences = %d\n", dev_priv
->num_fence_regs
);
528 for (i
= 0; i
< dev_priv
->num_fence_regs
; i
++) {
529 struct drm_i915_gem_object
*obj
= dev_priv
->fence_regs
[i
].obj
;
531 seq_printf(m
, "Fenced object[%2d] = ", i
);
533 seq_printf(m
, "unused");
535 describe_obj(m
, obj
);
539 mutex_unlock(&dev
->struct_mutex
);
543 static int i915_hws_info(struct seq_file
*m
, void *data
)
545 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
546 struct drm_device
*dev
= node
->minor
->dev
;
547 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
548 struct intel_ring_buffer
*ring
;
549 const volatile u32 __iomem
*hws
;
552 ring
= &dev_priv
->ring
[(uintptr_t)node
->info_ent
->data
];
553 hws
= (volatile u32 __iomem
*)ring
->status_page
.page_addr
;
557 for (i
= 0; i
< 4096 / sizeof(u32
) / 4; i
+= 4) {
558 seq_printf(m
, "0x%08x: 0x%08x 0x%08x 0x%08x 0x%08x\n",
560 hws
[i
], hws
[i
+ 1], hws
[i
+ 2], hws
[i
+ 3]);
565 static void i915_dump_object(struct seq_file
*m
,
566 struct io_mapping
*mapping
,
567 struct drm_i915_gem_object
*obj
)
569 int page
, page_count
, i
;
571 page_count
= obj
->base
.size
/ PAGE_SIZE
;
572 for (page
= 0; page
< page_count
; page
++) {
573 u32
*mem
= io_mapping_map_wc(mapping
,
574 obj
->gtt_offset
+ page
* PAGE_SIZE
);
575 for (i
= 0; i
< PAGE_SIZE
; i
+= 4)
576 seq_printf(m
, "%08x : %08x\n", i
, mem
[i
/ 4]);
577 io_mapping_unmap(mem
);
581 static int i915_batchbuffer_info(struct seq_file
*m
, void *data
)
583 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
584 struct drm_device
*dev
= node
->minor
->dev
;
585 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
586 struct drm_i915_gem_object
*obj
;
589 ret
= mutex_lock_interruptible(&dev
->struct_mutex
);
593 list_for_each_entry(obj
, &dev_priv
->mm
.active_list
, mm_list
) {
594 if (obj
->base
.read_domains
& I915_GEM_DOMAIN_COMMAND
) {
595 seq_printf(m
, "--- gtt_offset = 0x%08x\n", obj
->gtt_offset
);
596 i915_dump_object(m
, dev_priv
->mm
.gtt_mapping
, obj
);
600 mutex_unlock(&dev
->struct_mutex
);
604 static int i915_ringbuffer_data(struct seq_file
*m
, void *data
)
606 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
607 struct drm_device
*dev
= node
->minor
->dev
;
608 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
609 struct intel_ring_buffer
*ring
;
612 ret
= mutex_lock_interruptible(&dev
->struct_mutex
);
616 ring
= &dev_priv
->ring
[(uintptr_t)node
->info_ent
->data
];
618 seq_printf(m
, "No ringbuffer setup\n");
620 const u8 __iomem
*virt
= ring
->virtual_start
;
623 for (off
= 0; off
< ring
->size
; off
+= 4) {
624 uint32_t *ptr
= (uint32_t *)(virt
+ off
);
625 seq_printf(m
, "%08x : %08x\n", off
, *ptr
);
628 mutex_unlock(&dev
->struct_mutex
);
633 static int i915_ringbuffer_info(struct seq_file
*m
, void *data
)
635 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
636 struct drm_device
*dev
= node
->minor
->dev
;
637 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
638 struct intel_ring_buffer
*ring
;
641 ring
= &dev_priv
->ring
[(uintptr_t)node
->info_ent
->data
];
645 ret
= mutex_lock_interruptible(&dev
->struct_mutex
);
649 seq_printf(m
, "Ring %s:\n", ring
->name
);
650 seq_printf(m
, " Head : %08x\n", I915_READ_HEAD(ring
) & HEAD_ADDR
);
651 seq_printf(m
, " Tail : %08x\n", I915_READ_TAIL(ring
) & TAIL_ADDR
);
652 seq_printf(m
, " Size : %08x\n", ring
->size
);
653 seq_printf(m
, " Active : %08x\n", intel_ring_get_active_head(ring
));
654 seq_printf(m
, " NOPID : %08x\n", I915_READ_NOPID(ring
));
656 seq_printf(m
, " Sync 0 : %08x\n", I915_READ_SYNC_0(ring
));
657 seq_printf(m
, " Sync 1 : %08x\n", I915_READ_SYNC_1(ring
));
659 seq_printf(m
, " Control : %08x\n", I915_READ_CTL(ring
));
660 seq_printf(m
, " Start : %08x\n", I915_READ_START(ring
));
662 mutex_unlock(&dev
->struct_mutex
);
667 static const char *ring_str(int ring
)
670 case RING_RENDER
: return " render";
671 case RING_BSD
: return " bsd";
672 case RING_BLT
: return " blt";
677 static const char *pin_flag(int pinned
)
687 static const char *tiling_flag(int tiling
)
691 case I915_TILING_NONE
: return "";
692 case I915_TILING_X
: return " X";
693 case I915_TILING_Y
: return " Y";
697 static const char *dirty_flag(int dirty
)
699 return dirty
? " dirty" : "";
702 static const char *purgeable_flag(int purgeable
)
704 return purgeable
? " purgeable" : "";
707 static void print_error_buffers(struct seq_file
*m
,
709 struct drm_i915_error_buffer
*err
,
712 seq_printf(m
, "%s [%d]:\n", name
, count
);
715 seq_printf(m
, " %08x %8u %04x %04x %08x%s%s%s%s%s%s",
721 pin_flag(err
->pinned
),
722 tiling_flag(err
->tiling
),
723 dirty_flag(err
->dirty
),
724 purgeable_flag(err
->purgeable
),
726 cache_level_str(err
->cache_level
));
729 seq_printf(m
, " (name: %d)", err
->name
);
730 if (err
->fence_reg
!= I915_FENCE_REG_NONE
)
731 seq_printf(m
, " (fence: %d)", err
->fence_reg
);
738 static int i915_error_state(struct seq_file
*m
, void *unused
)
740 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
741 struct drm_device
*dev
= node
->minor
->dev
;
742 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
743 struct drm_i915_error_state
*error
;
745 int i
, page
, offset
, elt
;
747 spin_lock_irqsave(&dev_priv
->error_lock
, flags
);
748 if (!dev_priv
->first_error
) {
749 seq_printf(m
, "no error state collected\n");
753 error
= dev_priv
->first_error
;
755 seq_printf(m
, "Time: %ld s %ld us\n", error
->time
.tv_sec
,
756 error
->time
.tv_usec
);
757 seq_printf(m
, "PCI ID: 0x%04x\n", dev
->pci_device
);
758 seq_printf(m
, "EIR: 0x%08x\n", error
->eir
);
759 seq_printf(m
, "PGTBL_ER: 0x%08x\n", error
->pgtbl_er
);
760 if (INTEL_INFO(dev
)->gen
>= 6) {
761 seq_printf(m
, "ERROR: 0x%08x\n", error
->error
);
762 seq_printf(m
, "Blitter command stream:\n");
763 seq_printf(m
, " ACTHD: 0x%08x\n", error
->bcs_acthd
);
764 seq_printf(m
, " IPEIR: 0x%08x\n", error
->bcs_ipeir
);
765 seq_printf(m
, " IPEHR: 0x%08x\n", error
->bcs_ipehr
);
766 seq_printf(m
, " INSTDONE: 0x%08x\n", error
->bcs_instdone
);
767 seq_printf(m
, " seqno: 0x%08x\n", error
->bcs_seqno
);
768 seq_printf(m
, "Video (BSD) command stream:\n");
769 seq_printf(m
, " ACTHD: 0x%08x\n", error
->vcs_acthd
);
770 seq_printf(m
, " IPEIR: 0x%08x\n", error
->vcs_ipeir
);
771 seq_printf(m
, " IPEHR: 0x%08x\n", error
->vcs_ipehr
);
772 seq_printf(m
, " INSTDONE: 0x%08x\n", error
->vcs_instdone
);
773 seq_printf(m
, " seqno: 0x%08x\n", error
->vcs_seqno
);
775 seq_printf(m
, "Render command stream:\n");
776 seq_printf(m
, " ACTHD: 0x%08x\n", error
->acthd
);
777 seq_printf(m
, " IPEIR: 0x%08x\n", error
->ipeir
);
778 seq_printf(m
, " IPEHR: 0x%08x\n", error
->ipehr
);
779 seq_printf(m
, " INSTDONE: 0x%08x\n", error
->instdone
);
780 if (INTEL_INFO(dev
)->gen
>= 4) {
781 seq_printf(m
, " INSTDONE1: 0x%08x\n", error
->instdone1
);
782 seq_printf(m
, " INSTPS: 0x%08x\n", error
->instps
);
784 seq_printf(m
, " INSTPM: 0x%08x\n", error
->instpm
);
785 seq_printf(m
, " seqno: 0x%08x\n", error
->seqno
);
787 for (i
= 0; i
< dev_priv
->num_fence_regs
; i
++)
788 seq_printf(m
, " fence[%d] = %08llx\n", i
, error
->fence
[i
]);
790 if (error
->active_bo
)
791 print_error_buffers(m
, "Active",
793 error
->active_bo_count
);
795 if (error
->pinned_bo
)
796 print_error_buffers(m
, "Pinned",
798 error
->pinned_bo_count
);
800 for (i
= 0; i
< ARRAY_SIZE(error
->batchbuffer
); i
++) {
801 if (error
->batchbuffer
[i
]) {
802 struct drm_i915_error_object
*obj
= error
->batchbuffer
[i
];
804 seq_printf(m
, "%s --- gtt_offset = 0x%08x\n",
805 dev_priv
->ring
[i
].name
,
808 for (page
= 0; page
< obj
->page_count
; page
++) {
809 for (elt
= 0; elt
< PAGE_SIZE
/4; elt
++) {
810 seq_printf(m
, "%08x : %08x\n", offset
, obj
->pages
[page
][elt
]);
817 for (i
= 0; i
< ARRAY_SIZE(error
->ringbuffer
); i
++) {
818 if (error
->ringbuffer
[i
]) {
819 struct drm_i915_error_object
*obj
= error
->ringbuffer
[i
];
820 seq_printf(m
, "%s --- ringbuffer = 0x%08x\n",
821 dev_priv
->ring
[i
].name
,
824 for (page
= 0; page
< obj
->page_count
; page
++) {
825 for (elt
= 0; elt
< PAGE_SIZE
/4; elt
++) {
826 seq_printf(m
, "%08x : %08x\n",
828 obj
->pages
[page
][elt
]);
836 intel_overlay_print_error_state(m
, error
->overlay
);
839 intel_display_print_error_state(m
, dev
, error
->display
);
842 spin_unlock_irqrestore(&dev_priv
->error_lock
, flags
);
847 static int i915_rstdby_delays(struct seq_file
*m
, void *unused
)
849 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
850 struct drm_device
*dev
= node
->minor
->dev
;
851 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
855 ret
= mutex_lock_interruptible(&dev
->struct_mutex
);
859 crstanddelay
= I915_READ16(CRSTANDVID
);
861 mutex_unlock(&dev
->struct_mutex
);
863 seq_printf(m
, "w/ctx: %d, w/o ctx: %d\n", (crstanddelay
>> 8) & 0x3f, (crstanddelay
& 0x3f));
868 static int i915_cur_delayinfo(struct seq_file
*m
, void *unused
)
870 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
871 struct drm_device
*dev
= node
->minor
->dev
;
872 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
876 u16 rgvswctl
= I915_READ16(MEMSWCTL
);
877 u16 rgvstat
= I915_READ16(MEMSTAT_ILK
);
879 seq_printf(m
, "Requested P-state: %d\n", (rgvswctl
>> 8) & 0xf);
880 seq_printf(m
, "Requested VID: %d\n", rgvswctl
& 0x3f);
881 seq_printf(m
, "Current VID: %d\n", (rgvstat
& MEMSTAT_VID_MASK
) >>
883 seq_printf(m
, "Current P-state: %d\n",
884 (rgvstat
& MEMSTAT_PSTATE_MASK
) >> MEMSTAT_PSTATE_SHIFT
);
885 } else if (IS_GEN6(dev
) || IS_GEN7(dev
)) {
886 u32 gt_perf_status
= I915_READ(GEN6_GT_PERF_STATUS
);
887 u32 rp_state_limits
= I915_READ(GEN6_RP_STATE_LIMITS
);
888 u32 rp_state_cap
= I915_READ(GEN6_RP_STATE_CAP
);
890 u32 rpupei
, rpcurup
, rpprevup
;
891 u32 rpdownei
, rpcurdown
, rpprevdown
;
894 /* RPSTAT1 is in the GT power well */
895 ret
= mutex_lock_interruptible(&dev
->struct_mutex
);
899 gen6_gt_force_wake_get(dev_priv
);
901 rpstat
= I915_READ(GEN6_RPSTAT1
);
902 rpupei
= I915_READ(GEN6_RP_CUR_UP_EI
);
903 rpcurup
= I915_READ(GEN6_RP_CUR_UP
);
904 rpprevup
= I915_READ(GEN6_RP_PREV_UP
);
905 rpdownei
= I915_READ(GEN6_RP_CUR_DOWN_EI
);
906 rpcurdown
= I915_READ(GEN6_RP_CUR_DOWN
);
907 rpprevdown
= I915_READ(GEN6_RP_PREV_DOWN
);
909 gen6_gt_force_wake_put(dev_priv
);
910 mutex_unlock(&dev
->struct_mutex
);
912 seq_printf(m
, "GT_PERF_STATUS: 0x%08x\n", gt_perf_status
);
913 seq_printf(m
, "RPSTAT1: 0x%08x\n", rpstat
);
914 seq_printf(m
, "Render p-state ratio: %d\n",
915 (gt_perf_status
& 0xff00) >> 8);
916 seq_printf(m
, "Render p-state VID: %d\n",
917 gt_perf_status
& 0xff);
918 seq_printf(m
, "Render p-state limit: %d\n",
919 rp_state_limits
& 0xff);
920 seq_printf(m
, "CAGF: %dMHz\n", ((rpstat
& GEN6_CAGF_MASK
) >>
921 GEN6_CAGF_SHIFT
) * 50);
922 seq_printf(m
, "RP CUR UP EI: %dus\n", rpupei
&
924 seq_printf(m
, "RP CUR UP: %dus\n", rpcurup
&
925 GEN6_CURBSYTAVG_MASK
);
926 seq_printf(m
, "RP PREV UP: %dus\n", rpprevup
&
927 GEN6_CURBSYTAVG_MASK
);
928 seq_printf(m
, "RP CUR DOWN EI: %dus\n", rpdownei
&
930 seq_printf(m
, "RP CUR DOWN: %dus\n", rpcurdown
&
931 GEN6_CURBSYTAVG_MASK
);
932 seq_printf(m
, "RP PREV DOWN: %dus\n", rpprevdown
&
933 GEN6_CURBSYTAVG_MASK
);
935 max_freq
= (rp_state_cap
& 0xff0000) >> 16;
936 seq_printf(m
, "Lowest (RPN) frequency: %dMHz\n",
939 max_freq
= (rp_state_cap
& 0xff00) >> 8;
940 seq_printf(m
, "Nominal (RP1) frequency: %dMHz\n",
943 max_freq
= rp_state_cap
& 0xff;
944 seq_printf(m
, "Max non-overclocked (RP0) frequency: %dMHz\n",
947 seq_printf(m
, "no P-state info available\n");
953 static int i915_delayfreq_table(struct seq_file
*m
, void *unused
)
955 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
956 struct drm_device
*dev
= node
->minor
->dev
;
957 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
961 ret
= mutex_lock_interruptible(&dev
->struct_mutex
);
965 for (i
= 0; i
< 16; i
++) {
966 delayfreq
= I915_READ(PXVFREQ_BASE
+ i
* 4);
967 seq_printf(m
, "P%02dVIDFREQ: 0x%08x (VID: %d)\n", i
, delayfreq
,
968 (delayfreq
& PXVFREQ_PX_MASK
) >> PXVFREQ_PX_SHIFT
);
971 mutex_unlock(&dev
->struct_mutex
);
976 static inline int MAP_TO_MV(int map
)
978 return 1250 - (map
* 25);
981 static int i915_inttoext_table(struct seq_file
*m
, void *unused
)
983 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
984 struct drm_device
*dev
= node
->minor
->dev
;
985 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
989 ret
= mutex_lock_interruptible(&dev
->struct_mutex
);
993 for (i
= 1; i
<= 32; i
++) {
994 inttoext
= I915_READ(INTTOEXT_BASE_ILK
+ i
* 4);
995 seq_printf(m
, "INTTOEXT%02d: 0x%08x\n", i
, inttoext
);
998 mutex_unlock(&dev
->struct_mutex
);
1003 static int i915_drpc_info(struct seq_file
*m
, void *unused
)
1005 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
1006 struct drm_device
*dev
= node
->minor
->dev
;
1007 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
1008 u32 rgvmodectl
, rstdbyctl
;
1012 ret
= mutex_lock_interruptible(&dev
->struct_mutex
);
1016 rgvmodectl
= I915_READ(MEMMODECTL
);
1017 rstdbyctl
= I915_READ(RSTDBYCTL
);
1018 crstandvid
= I915_READ16(CRSTANDVID
);
1020 mutex_unlock(&dev
->struct_mutex
);
1022 seq_printf(m
, "HD boost: %s\n", (rgvmodectl
& MEMMODE_BOOST_EN
) ?
1024 seq_printf(m
, "Boost freq: %d\n",
1025 (rgvmodectl
& MEMMODE_BOOST_FREQ_MASK
) >>
1026 MEMMODE_BOOST_FREQ_SHIFT
);
1027 seq_printf(m
, "HW control enabled: %s\n",
1028 rgvmodectl
& MEMMODE_HWIDLE_EN
? "yes" : "no");
1029 seq_printf(m
, "SW control enabled: %s\n",
1030 rgvmodectl
& MEMMODE_SWMODE_EN
? "yes" : "no");
1031 seq_printf(m
, "Gated voltage change: %s\n",
1032 rgvmodectl
& MEMMODE_RCLK_GATE
? "yes" : "no");
1033 seq_printf(m
, "Starting frequency: P%d\n",
1034 (rgvmodectl
& MEMMODE_FSTART_MASK
) >> MEMMODE_FSTART_SHIFT
);
1035 seq_printf(m
, "Max P-state: P%d\n",
1036 (rgvmodectl
& MEMMODE_FMAX_MASK
) >> MEMMODE_FMAX_SHIFT
);
1037 seq_printf(m
, "Min P-state: P%d\n", (rgvmodectl
& MEMMODE_FMIN_MASK
));
1038 seq_printf(m
, "RS1 VID: %d\n", (crstandvid
& 0x3f));
1039 seq_printf(m
, "RS2 VID: %d\n", ((crstandvid
>> 8) & 0x3f));
1040 seq_printf(m
, "Render standby enabled: %s\n",
1041 (rstdbyctl
& RCX_SW_EXIT
) ? "no" : "yes");
1042 seq_printf(m
, "Current RS state: ");
1043 switch (rstdbyctl
& RSX_STATUS_MASK
) {
1045 seq_printf(m
, "on\n");
1047 case RSX_STATUS_RC1
:
1048 seq_printf(m
, "RC1\n");
1050 case RSX_STATUS_RC1E
:
1051 seq_printf(m
, "RC1E\n");
1053 case RSX_STATUS_RS1
:
1054 seq_printf(m
, "RS1\n");
1056 case RSX_STATUS_RS2
:
1057 seq_printf(m
, "RS2 (RC6)\n");
1059 case RSX_STATUS_RS3
:
1060 seq_printf(m
, "RC3 (RC6+)\n");
1063 seq_printf(m
, "unknown\n");
1070 static int i915_fbc_status(struct seq_file
*m
, void *unused
)
1072 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
1073 struct drm_device
*dev
= node
->minor
->dev
;
1074 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
1076 if (!I915_HAS_FBC(dev
)) {
1077 seq_printf(m
, "FBC unsupported on this chipset\n");
1081 if (intel_fbc_enabled(dev
)) {
1082 seq_printf(m
, "FBC enabled\n");
1084 seq_printf(m
, "FBC disabled: ");
1085 switch (dev_priv
->no_fbc_reason
) {
1087 seq_printf(m
, "no outputs");
1089 case FBC_STOLEN_TOO_SMALL
:
1090 seq_printf(m
, "not enough stolen memory");
1092 case FBC_UNSUPPORTED_MODE
:
1093 seq_printf(m
, "mode not supported");
1095 case FBC_MODE_TOO_LARGE
:
1096 seq_printf(m
, "mode too large");
1099 seq_printf(m
, "FBC unsupported on plane");
1102 seq_printf(m
, "scanout buffer not tiled");
1104 case FBC_MULTIPLE_PIPES
:
1105 seq_printf(m
, "multiple pipes are enabled");
1107 case FBC_MODULE_PARAM
:
1108 seq_printf(m
, "disabled per module param (default off)");
1111 seq_printf(m
, "unknown reason");
1113 seq_printf(m
, "\n");
1118 static int i915_sr_status(struct seq_file
*m
, void *unused
)
1120 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
1121 struct drm_device
*dev
= node
->minor
->dev
;
1122 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
1123 bool sr_enabled
= false;
1125 if (HAS_PCH_SPLIT(dev
))
1126 sr_enabled
= I915_READ(WM1_LP_ILK
) & WM1_LP_SR_EN
;
1127 else if (IS_CRESTLINE(dev
) || IS_I945G(dev
) || IS_I945GM(dev
))
1128 sr_enabled
= I915_READ(FW_BLC_SELF
) & FW_BLC_SELF_EN
;
1129 else if (IS_I915GM(dev
))
1130 sr_enabled
= I915_READ(INSTPM
) & INSTPM_SELF_EN
;
1131 else if (IS_PINEVIEW(dev
))
1132 sr_enabled
= I915_READ(DSPFW3
) & PINEVIEW_SELF_REFRESH_EN
;
1134 seq_printf(m
, "self-refresh: %s\n",
1135 sr_enabled
? "enabled" : "disabled");
1140 static int i915_emon_status(struct seq_file
*m
, void *unused
)
1142 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
1143 struct drm_device
*dev
= node
->minor
->dev
;
1144 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
1145 unsigned long temp
, chipset
, gfx
;
1148 ret
= mutex_lock_interruptible(&dev
->struct_mutex
);
1152 temp
= i915_mch_val(dev_priv
);
1153 chipset
= i915_chipset_val(dev_priv
);
1154 gfx
= i915_gfx_val(dev_priv
);
1155 mutex_unlock(&dev
->struct_mutex
);
1157 seq_printf(m
, "GMCH temp: %ld\n", temp
);
1158 seq_printf(m
, "Chipset power: %ld\n", chipset
);
1159 seq_printf(m
, "GFX power: %ld\n", gfx
);
1160 seq_printf(m
, "Total power: %ld\n", chipset
+ gfx
);
1165 static int i915_ring_freq_table(struct seq_file
*m
, void *unused
)
1167 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
1168 struct drm_device
*dev
= node
->minor
->dev
;
1169 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
1171 int gpu_freq
, ia_freq
;
1173 if (!(IS_GEN6(dev
) || IS_GEN7(dev
))) {
1174 seq_printf(m
, "unsupported on this chipset\n");
1178 ret
= mutex_lock_interruptible(&dev
->struct_mutex
);
1182 seq_printf(m
, "GPU freq (MHz)\tEffective CPU freq (MHz)\n");
1184 for (gpu_freq
= dev_priv
->min_delay
; gpu_freq
<= dev_priv
->max_delay
;
1186 I915_WRITE(GEN6_PCODE_DATA
, gpu_freq
);
1187 I915_WRITE(GEN6_PCODE_MAILBOX
, GEN6_PCODE_READY
|
1188 GEN6_PCODE_READ_MIN_FREQ_TABLE
);
1189 if (wait_for((I915_READ(GEN6_PCODE_MAILBOX
) &
1190 GEN6_PCODE_READY
) == 0, 10)) {
1191 DRM_ERROR("pcode read of freq table timed out\n");
1194 ia_freq
= I915_READ(GEN6_PCODE_DATA
);
1195 seq_printf(m
, "%d\t\t%d\n", gpu_freq
* 50, ia_freq
* 100);
1198 mutex_unlock(&dev
->struct_mutex
);
1203 static int i915_gfxec(struct seq_file
*m
, void *unused
)
1205 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
1206 struct drm_device
*dev
= node
->minor
->dev
;
1207 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
1210 ret
= mutex_lock_interruptible(&dev
->struct_mutex
);
1214 seq_printf(m
, "GFXEC: %ld\n", (unsigned long)I915_READ(0x112f4));
1216 mutex_unlock(&dev
->struct_mutex
);
1221 static int i915_opregion(struct seq_file
*m
, void *unused
)
1223 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
1224 struct drm_device
*dev
= node
->minor
->dev
;
1225 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
1226 struct intel_opregion
*opregion
= &dev_priv
->opregion
;
1229 ret
= mutex_lock_interruptible(&dev
->struct_mutex
);
1233 if (opregion
->header
)
1234 seq_write(m
, opregion
->header
, OPREGION_SIZE
);
1236 mutex_unlock(&dev
->struct_mutex
);
1241 static int i915_gem_framebuffer_info(struct seq_file
*m
, void *data
)
1243 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
1244 struct drm_device
*dev
= node
->minor
->dev
;
1245 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
1246 struct intel_fbdev
*ifbdev
;
1247 struct intel_framebuffer
*fb
;
1250 ret
= mutex_lock_interruptible(&dev
->mode_config
.mutex
);
1254 ifbdev
= dev_priv
->fbdev
;
1255 fb
= to_intel_framebuffer(ifbdev
->helper
.fb
);
1257 seq_printf(m
, "fbcon size: %d x %d, depth %d, %d bpp, obj ",
1261 fb
->base
.bits_per_pixel
);
1262 describe_obj(m
, fb
->obj
);
1263 seq_printf(m
, "\n");
1265 list_for_each_entry(fb
, &dev
->mode_config
.fb_list
, base
.head
) {
1266 if (&fb
->base
== ifbdev
->helper
.fb
)
1269 seq_printf(m
, "user size: %d x %d, depth %d, %d bpp, obj ",
1273 fb
->base
.bits_per_pixel
);
1274 describe_obj(m
, fb
->obj
);
1275 seq_printf(m
, "\n");
1278 mutex_unlock(&dev
->mode_config
.mutex
);
1283 static int i915_context_status(struct seq_file
*m
, void *unused
)
1285 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
1286 struct drm_device
*dev
= node
->minor
->dev
;
1287 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
1290 ret
= mutex_lock_interruptible(&dev
->mode_config
.mutex
);
1294 if (dev_priv
->pwrctx
) {
1295 seq_printf(m
, "power context ");
1296 describe_obj(m
, dev_priv
->pwrctx
);
1297 seq_printf(m
, "\n");
1300 if (dev_priv
->renderctx
) {
1301 seq_printf(m
, "render context ");
1302 describe_obj(m
, dev_priv
->renderctx
);
1303 seq_printf(m
, "\n");
1306 mutex_unlock(&dev
->mode_config
.mutex
);
1311 static int i915_gen6_forcewake_count_info(struct seq_file
*m
, void *data
)
1313 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
1314 struct drm_device
*dev
= node
->minor
->dev
;
1315 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1317 seq_printf(m
, "forcewake count = %d\n",
1318 atomic_read(&dev_priv
->forcewake_count
));
1324 i915_wedged_open(struct inode
*inode
,
1327 filp
->private_data
= inode
->i_private
;
1332 i915_wedged_read(struct file
*filp
,
1337 struct drm_device
*dev
= filp
->private_data
;
1338 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
1342 len
= snprintf(buf
, sizeof(buf
),
1344 atomic_read(&dev_priv
->mm
.wedged
));
1346 if (len
> sizeof(buf
))
1349 return simple_read_from_buffer(ubuf
, max
, ppos
, buf
, len
);
1353 i915_wedged_write(struct file
*filp
,
1354 const char __user
*ubuf
,
1358 struct drm_device
*dev
= filp
->private_data
;
1363 if (cnt
> sizeof(buf
) - 1)
1366 if (copy_from_user(buf
, ubuf
, cnt
))
1370 val
= simple_strtoul(buf
, NULL
, 0);
1373 DRM_INFO("Manually setting wedged to %d\n", val
);
1374 i915_handle_error(dev
, val
);
1379 static const struct file_operations i915_wedged_fops
= {
1380 .owner
= THIS_MODULE
,
1381 .open
= i915_wedged_open
,
1382 .read
= i915_wedged_read
,
1383 .write
= i915_wedged_write
,
1384 .llseek
= default_llseek
,
1388 i915_max_freq_open(struct inode
*inode
,
1391 filp
->private_data
= inode
->i_private
;
1396 i915_max_freq_read(struct file
*filp
,
1401 struct drm_device
*dev
= filp
->private_data
;
1402 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
1406 len
= snprintf(buf
, sizeof(buf
),
1407 "max freq: %d\n", dev_priv
->max_delay
* 50);
1409 if (len
> sizeof(buf
))
1412 return simple_read_from_buffer(ubuf
, max
, ppos
, buf
, len
);
1416 i915_max_freq_write(struct file
*filp
,
1417 const char __user
*ubuf
,
1421 struct drm_device
*dev
= filp
->private_data
;
1422 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1427 if (cnt
> sizeof(buf
) - 1)
1430 if (copy_from_user(buf
, ubuf
, cnt
))
1434 val
= simple_strtoul(buf
, NULL
, 0);
1437 DRM_DEBUG_DRIVER("Manually setting max freq to %d\n", val
);
1440 * Turbo will still be enabled, but won't go above the set value.
1442 dev_priv
->max_delay
= val
/ 50;
1444 gen6_set_rps(dev
, val
/ 50);
1449 static const struct file_operations i915_max_freq_fops
= {
1450 .owner
= THIS_MODULE
,
1451 .open
= i915_max_freq_open
,
1452 .read
= i915_max_freq_read
,
1453 .write
= i915_max_freq_write
,
1454 .llseek
= default_llseek
,
1458 i915_cache_sharing_open(struct inode
*inode
,
1461 filp
->private_data
= inode
->i_private
;
1466 i915_cache_sharing_read(struct file
*filp
,
1471 struct drm_device
*dev
= filp
->private_data
;
1472 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
1477 mutex_lock(&dev_priv
->dev
->struct_mutex
);
1478 snpcr
= I915_READ(GEN6_MBCUNIT_SNPCR
);
1479 mutex_unlock(&dev_priv
->dev
->struct_mutex
);
1481 len
= snprintf(buf
, sizeof(buf
),
1482 "%d\n", (snpcr
& GEN6_MBC_SNPCR_MASK
) >>
1483 GEN6_MBC_SNPCR_SHIFT
);
1485 if (len
> sizeof(buf
))
1488 return simple_read_from_buffer(ubuf
, max
, ppos
, buf
, len
);
1492 i915_cache_sharing_write(struct file
*filp
,
1493 const char __user
*ubuf
,
1497 struct drm_device
*dev
= filp
->private_data
;
1498 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1504 if (cnt
> sizeof(buf
) - 1)
1507 if (copy_from_user(buf
, ubuf
, cnt
))
1511 val
= simple_strtoul(buf
, NULL
, 0);
1514 if (val
< 0 || val
> 3)
1517 DRM_DEBUG_DRIVER("Manually setting uncore sharing to %d\n", val
);
1519 /* Update the cache sharing policy here as well */
1520 snpcr
= I915_READ(GEN6_MBCUNIT_SNPCR
);
1521 snpcr
&= ~GEN6_MBC_SNPCR_MASK
;
1522 snpcr
|= (val
<< GEN6_MBC_SNPCR_SHIFT
);
1523 I915_WRITE(GEN6_MBCUNIT_SNPCR
, snpcr
);
1528 static const struct file_operations i915_cache_sharing_fops
= {
1529 .owner
= THIS_MODULE
,
1530 .open
= i915_cache_sharing_open
,
1531 .read
= i915_cache_sharing_read
,
1532 .write
= i915_cache_sharing_write
,
1533 .llseek
= default_llseek
,
1536 /* As the drm_debugfs_init() routines are called before dev->dev_private is
1537 * allocated we need to hook into the minor for release. */
1539 drm_add_fake_info_node(struct drm_minor
*minor
,
1543 struct drm_info_node
*node
;
1545 node
= kmalloc(sizeof(struct drm_info_node
), GFP_KERNEL
);
1547 debugfs_remove(ent
);
1551 node
->minor
= minor
;
1553 node
->info_ent
= (void *) key
;
1555 mutex_lock(&minor
->debugfs_lock
);
1556 list_add(&node
->list
, &minor
->debugfs_list
);
1557 mutex_unlock(&minor
->debugfs_lock
);
1562 static int i915_wedged_create(struct dentry
*root
, struct drm_minor
*minor
)
1564 struct drm_device
*dev
= minor
->dev
;
1567 ent
= debugfs_create_file("i915_wedged",
1572 return PTR_ERR(ent
);
1574 return drm_add_fake_info_node(minor
, ent
, &i915_wedged_fops
);
1577 static int i915_forcewake_open(struct inode
*inode
, struct file
*file
)
1579 struct drm_device
*dev
= inode
->i_private
;
1580 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1586 ret
= mutex_lock_interruptible(&dev
->struct_mutex
);
1589 gen6_gt_force_wake_get(dev_priv
);
1590 mutex_unlock(&dev
->struct_mutex
);
1595 int i915_forcewake_release(struct inode
*inode
, struct file
*file
)
1597 struct drm_device
*dev
= inode
->i_private
;
1598 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1604 * It's bad that we can potentially hang userspace if struct_mutex gets
1605 * forever stuck. However, if we cannot acquire this lock it means that
1606 * almost certainly the driver has hung, is not unload-able. Therefore
1607 * hanging here is probably a minor inconvenience not to be seen my
1608 * almost every user.
1610 mutex_lock(&dev
->struct_mutex
);
1611 gen6_gt_force_wake_put(dev_priv
);
1612 mutex_unlock(&dev
->struct_mutex
);
1617 static const struct file_operations i915_forcewake_fops
= {
1618 .owner
= THIS_MODULE
,
1619 .open
= i915_forcewake_open
,
1620 .release
= i915_forcewake_release
,
1623 static int i915_forcewake_create(struct dentry
*root
, struct drm_minor
*minor
)
1625 struct drm_device
*dev
= minor
->dev
;
1628 ent
= debugfs_create_file("i915_forcewake_user",
1631 &i915_forcewake_fops
);
1633 return PTR_ERR(ent
);
1635 return drm_add_fake_info_node(minor
, ent
, &i915_forcewake_fops
);
1638 static int i915_max_freq_create(struct dentry
*root
, struct drm_minor
*minor
)
1640 struct drm_device
*dev
= minor
->dev
;
1643 ent
= debugfs_create_file("i915_max_freq",
1646 &i915_max_freq_fops
);
1648 return PTR_ERR(ent
);
1650 return drm_add_fake_info_node(minor
, ent
, &i915_max_freq_fops
);
1653 static int i915_cache_sharing_create(struct dentry
*root
, struct drm_minor
*minor
)
1655 struct drm_device
*dev
= minor
->dev
;
1658 ent
= debugfs_create_file("i915_cache_sharing",
1661 &i915_cache_sharing_fops
);
1663 return PTR_ERR(ent
);
1665 return drm_add_fake_info_node(minor
, ent
, &i915_cache_sharing_fops
);
1668 static struct drm_info_list i915_debugfs_list
[] = {
1669 {"i915_capabilities", i915_capabilities
, 0},
1670 {"i915_gem_objects", i915_gem_object_info
, 0},
1671 {"i915_gem_gtt", i915_gem_gtt_info
, 0},
1672 {"i915_gem_active", i915_gem_object_list_info
, 0, (void *) ACTIVE_LIST
},
1673 {"i915_gem_flushing", i915_gem_object_list_info
, 0, (void *) FLUSHING_LIST
},
1674 {"i915_gem_inactive", i915_gem_object_list_info
, 0, (void *) INACTIVE_LIST
},
1675 {"i915_gem_pinned", i915_gem_object_list_info
, 0, (void *) PINNED_LIST
},
1676 {"i915_gem_deferred_free", i915_gem_object_list_info
, 0, (void *) DEFERRED_FREE_LIST
},
1677 {"i915_gem_pageflip", i915_gem_pageflip_info
, 0},
1678 {"i915_gem_request", i915_gem_request_info
, 0},
1679 {"i915_gem_seqno", i915_gem_seqno_info
, 0},
1680 {"i915_gem_fence_regs", i915_gem_fence_regs_info
, 0},
1681 {"i915_gem_interrupt", i915_interrupt_info
, 0},
1682 {"i915_gem_hws", i915_hws_info
, 0, (void *)RCS
},
1683 {"i915_gem_hws_blt", i915_hws_info
, 0, (void *)BCS
},
1684 {"i915_gem_hws_bsd", i915_hws_info
, 0, (void *)VCS
},
1685 {"i915_ringbuffer_data", i915_ringbuffer_data
, 0, (void *)RCS
},
1686 {"i915_ringbuffer_info", i915_ringbuffer_info
, 0, (void *)RCS
},
1687 {"i915_bsd_ringbuffer_data", i915_ringbuffer_data
, 0, (void *)VCS
},
1688 {"i915_bsd_ringbuffer_info", i915_ringbuffer_info
, 0, (void *)VCS
},
1689 {"i915_blt_ringbuffer_data", i915_ringbuffer_data
, 0, (void *)BCS
},
1690 {"i915_blt_ringbuffer_info", i915_ringbuffer_info
, 0, (void *)BCS
},
1691 {"i915_batchbuffers", i915_batchbuffer_info
, 0},
1692 {"i915_error_state", i915_error_state
, 0},
1693 {"i915_rstdby_delays", i915_rstdby_delays
, 0},
1694 {"i915_cur_delayinfo", i915_cur_delayinfo
, 0},
1695 {"i915_delayfreq_table", i915_delayfreq_table
, 0},
1696 {"i915_inttoext_table", i915_inttoext_table
, 0},
1697 {"i915_drpc_info", i915_drpc_info
, 0},
1698 {"i915_emon_status", i915_emon_status
, 0},
1699 {"i915_ring_freq_table", i915_ring_freq_table
, 0},
1700 {"i915_gfxec", i915_gfxec
, 0},
1701 {"i915_fbc_status", i915_fbc_status
, 0},
1702 {"i915_sr_status", i915_sr_status
, 0},
1703 {"i915_opregion", i915_opregion
, 0},
1704 {"i915_gem_framebuffer", i915_gem_framebuffer_info
, 0},
1705 {"i915_context_status", i915_context_status
, 0},
1706 {"i915_gen6_forcewake_count", i915_gen6_forcewake_count_info
, 0},
1708 #define I915_DEBUGFS_ENTRIES ARRAY_SIZE(i915_debugfs_list)
1710 int i915_debugfs_init(struct drm_minor
*minor
)
1714 ret
= i915_wedged_create(minor
->debugfs_root
, minor
);
1718 ret
= i915_forcewake_create(minor
->debugfs_root
, minor
);
1721 ret
= i915_max_freq_create(minor
->debugfs_root
, minor
);
1724 ret
= i915_cache_sharing_create(minor
->debugfs_root
, minor
);
1728 return drm_debugfs_create_files(i915_debugfs_list
,
1729 I915_DEBUGFS_ENTRIES
,
1730 minor
->debugfs_root
, minor
);
1733 void i915_debugfs_cleanup(struct drm_minor
*minor
)
1735 drm_debugfs_remove_files(i915_debugfs_list
,
1736 I915_DEBUGFS_ENTRIES
, minor
);
1737 drm_debugfs_remove_files((struct drm_info_list
*) &i915_forcewake_fops
,
1739 drm_debugfs_remove_files((struct drm_info_list
*) &i915_wedged_fops
,
1741 drm_debugfs_remove_files((struct drm_info_list
*) &i915_max_freq_fops
,
1743 drm_debugfs_remove_files((struct drm_info_list
*) &i915_cache_sharing_fops
,
1747 #endif /* CONFIG_DEBUG_FS */