[Intel-gfx] [Regression report] Weekly regression report WW14

2016-03-26 Thread jairo . daniel . miramontes . caton 
WW14 Regression report.

Last week regressions
+---+---+++
| BugId | Summary   | Created on | Bisect |
+---+---+++
| 94676 | Possible kernel regression for gen3 and earli | 2016-03-23 | No |
+---+---+++

Previous Regressions
+---+---+++
| BugId | Summary   | Created on | Bisect |
+---+---+++
| 72782 | [945GM bisected] screen blank on S3 resume on | 2013-12-17 | Yes|
| 81537 | [snb dp regression] dp retry forever due to s | 2014-07-19 | No |
| 84855 | [ILK regression]igt kms_rotation_crc/sprite-r | 2014-10-10 | No |
| 84974 | [VLV eDP-LVDS bisected] powerdomains: Screen  | 2014-10-14 | Yes|
| 87131 | [PNV regression] igt/gem_exec_lut_handle take | 2014-12-09 | No |
| 87662 | [ALL 3.18 Bisected] DVI --rotation inverted c | 2014-12-24 | Yes|
| 87725 | [BDW Bisected] OglBatch7 performance reduced  | 2014-12-26 | Yes|
| 87726 | [BDW Bisected] OglDrvCtx performance reduced  | 2014-12-26 | Yes|
| 88012 | [bisected BYT] complete freeze after: drm/i91 | 2015-01-04 | Yes|
| 88124 | i915: regression: after DP connected monitor  | 2015-01-06 | No |
| 88439 | [BDW Bisected]igt/gem_reloc_vs_gpu/forked-fau | 2015-01-15 | Yes|
| 89334 | [945 regression] 4.0-rc1 kernel GPU hang:  ec | 2015-02-26 | No |
| 89629 | [i965 regression]igt/kms_rotation_crc/sprite- | 2015-03-18 | No |
| 89632 | [i965 regression]igt/kms_universal_plane/univ | 2015-03-18 | No |
| 89728 | [HSW/BDW/BSW/BYT bisected] igt / pm_rps / res | 2015-03-23 | Yes|
| 89872 | [ HSW Bisected ] VGA was white screen when re | 2015-04-02 | Yes|
| 90112 | [BSW bisected] OglGSCloth/Lightsmark/CS/ Port | 2015-04-20 | Yes|
| 90134 | [BSW Bisected]GFXBench3_gl_driver/GFXBench3_g | 2015-04-22 | Yes|
| 90368 | [SNB BSW SKL BXT KBL] bisected igt/kms_3d has | 2015-05-08 | Yes|
| 90732 | [BDW/BSW Bisected]igt/gem_reloc_vs_gpu/forked | 2015-05-29 | Yes|
| 90994 | [BDW regression] pm_rpm subtests fail and giv | 2015-06-16 | No |
| 91378 | [hsw dp regression] 06ea66b6 (5.4GHz link clo | 2015-07-17 | No |
| 91844 | [HSW Regression] intel_do_flush_locked failed | 2015-09-02 | No |
| 91959 | [865g 3.19 regression] Desktop image is disto | 2015-09-10 | No |
| 91974 | [bisected] unrecoverable black screen after k | 2015-09-11 | Yes|
| 92050 | [regression]/bug introduced by commit [0e572f | 2015-09-19 | No |
| 92083 | [regression] [git pull] drm for 4.3   | 2015-09-23 | No |
| 92096 | regression/bug introduced by commit [0e572fe7 | 2015-09-24 | No |
| 92237 | [SNB]Horrible noise (audio) via DisplayPort [ | 2015-10-02 | No |
| 92414 | [Intel-gfx] As of kernel 4.3-rc1 system will  | 2015-10-10 | Yes|
| 92502 | [SKL] [Regression] igt/kms_flip/2x-flip-vs-ex | 2015-10-16 | No |
| 92575 | [4.2 regression] Massive graphics corruption  | 2015-10-21 | No |
| 92972 | Black screen on Intel NUC hardware (i915) pos | 2015-11-16 | No |
| 93122 | [SNB BAT IGT regression] pm_rpm started skipp | 2015-11-26 | No |
| 93263 | 945GM regression since 4.3| 2015-12-05 | No |
| 93393 | Regression for Skylake modesetting in kernel  | 2015-12-16 | No |
| 93509 | [SNB] [4.4 regression] vblank wait timed out  | 2015-12-26 | No |
| 93608 | bisected: i915 SNB modeset crash in ac9b82365 | 2016-01-06 | Yes|
| 93802 | [IVB bisected] switching to tty1 causes fifo  | 2016-01-20 | Yes|
| 93971 | video framerate performance regression with U | 2016-02-02 | No |
| 94337 | Linux 4.5 regression: FIFO underruns on Skyla | 2016-02-29 | No |
| 94416 | [KBL HSW] [Regression] kms_frontbuffer_tracki | 2016-03-06 | No |
| 94430 | [HSW+nvidia] regression: display becomes "dis | 2016-03-07 | No |
| 94585 | [KBL BSW] igt/gem_reset_stats regression for  | 2016-03-17 | No |
| 94587 | [KBL] igt/kms_plane/plane-panning-bottom-righ | 2016-03-17 | No |
| 94588 | [KBL BSW] igt/gem_reloc_overflow regression f | 2016-03-17 | No |
| 94590 | [KBL/BXT] igt/kms_fbcon_fbt/psr-suspend regre | 2016-03-17 | No |
| 94593 | Flickering Screen on Dell XPS13 9350 [BISECT] | 2016-03-17 | Yes|
+---+---+++

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[Intel-gfx] [PATCH] drm/i915: Force ringbuffers to not be at offset 0

2016-03-26 Thread Chris Wilson 
For reasons unknown Sandybridge GT1 (at least) will eventually hang when
it encounters a ring wraparound at offset 0. The test case that
reproduces the bug reliably forces a large number of interrupted context
switches, thereby causing very frequent ring wraparounds, but there are
similar bug reports in the wild with the same symptoms, seqno writes
stop just before the wrap and the ringbuffer at address 0. It is also
timing crucial, but adding various delays hasn't helped pinpoint where
the window lies.

Whether the fault is restricted to the ringbuffer itself or the GTT
addressing is unclear, but moving the ringbuffer fixes all the hangs I
have been able to reproduce.

References: (e.g.) https://bugs.freedesktop.org/show_bug.cgi?id=93262
Testcase: igt/gem_exec_whisper/render-contexts-interruptible #snb-gt1
Signed-off-by: Chris Wilson 
Cc: sta...@vger.kernel.org
---
 drivers/gpu/drm/i915/intel_ringbuffer.c | 7 +--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c 
b/drivers/gpu/drm/i915/intel_ringbuffer.c
index a492bcabd30d..3648031788fd 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -2112,10 +2112,12 @@ int intel_pin_and_map_ringbuffer_obj(struct drm_device 
*dev,
 {
struct drm_i915_private *dev_priv = to_i915(dev);
struct drm_i915_gem_object *obj = ringbuf->obj;
+   /* Ring wraparound at offset 0 sometimes hangs. No idea why. */
+   unsigned flags = PIN_OFFSET_BIAS | 4096;
int ret;
 
if (HAS_LLC(dev_priv) && !obj->stolen) {
-   ret = i915_gem_obj_ggtt_pin(obj, PAGE_SIZE, 0);
+   ret = i915_gem_obj_ggtt_pin(obj, PAGE_SIZE, flags);
if (ret)
return ret;
 
@@ -2131,7 +2133,8 @@ int intel_pin_and_map_ringbuffer_obj(struct drm_device 
*dev,
return -ENOMEM;
}
} else {
-   ret = i915_gem_obj_ggtt_pin(obj, PAGE_SIZE, PIN_MAPPABLE);
+   ret = i915_gem_obj_ggtt_pin(obj, PAGE_SIZE,
+   flags | PIN_MAPPABLE);
if (ret)
return ret;
 
-- 
2.8.0.rc3

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[Intel-gfx] ✗ Fi.CI.BAT: failure for drm/i915: Prevent machine death on Ivybridge context switching

2016-03-26 Thread Patchwork 
== Series Details ==

Series: drm/i915: Prevent machine death on Ivybridge context switching
URL   : https://patchwork.freedesktop.org/series/4920/
State : failure

== Summary ==

Series 4920v1 drm/i915: Prevent machine death on Ivybridge context switching
http://patchwork.freedesktop.org/api/1.0/series/4920/revisions/1/mbox/

Test kms_force_connector_basic:
Subgroup prune-stale-modes:
pass   -> SKIP   (snb-x220t)
Test kms_pipe_crc_basic:
Subgroup suspend-read-crc-pipe-a:
pass   -> INCOMPLETE (hsw-gt2)
Subgroup suspend-read-crc-pipe-c:
pass   -> DMESG-WARN (bsw-nuc-2)
Test pm_rpm:
Subgroup basic-pci-d3-state:
pass   -> DMESG-WARN (bsw-nuc-2)
pass   -> DMESG-WARN (byt-nuc)
Subgroup basic-rte:
dmesg-warn -> PASS   (byt-nuc) UNSTABLE

bdw-nuci7total:192  pass:179  dwarn:0   dfail:0   fail:1   skip:12 
bdw-ultratotal:192  pass:170  dwarn:0   dfail:0   fail:1   skip:21 
bsw-nuc-2total:192  pass:153  dwarn:2   dfail:0   fail:0   skip:37 
byt-nuc  total:192  pass:156  dwarn:1   dfail:0   fail:0   skip:35 
hsw-brixbox  total:192  pass:170  dwarn:0   dfail:0   fail:0   skip:22 
hsw-gt2  total:71   pass:66   dwarn:0   dfail:0   fail:0   skip:4  
ivb-t430stotal:192  pass:167  dwarn:0   dfail:0   fail:0   skip:25 
skl-i7k-2total:192  pass:169  dwarn:0   dfail:0   fail:0   skip:23 
snb-dellxps  total:192  pass:158  dwarn:0   dfail:0   fail:0   skip:34 
snb-x220ttotal:192  pass:157  dwarn:0   dfail:0   fail:1   skip:34 

Results at /archive/results/CI_IGT_test/Patchwork_1722/

f5d413cccefa1f93d64c34f357151d42add63a84 drm-intel-nightly: 
2016y-03m-24d-14h-34m-29s UTC integration manifest
916848a46c4be0dcedb21cad6ad8818247f7b74b drm/i915: Prevent machine death on 
Ivybridge context switching

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[Intel-gfx] [PATCH] drm/i915: Prevent machine death on Ivybridge context switching

2016-03-26 Thread Chris Wilson 
Two concurrent writes into the same register cacheline has the chance of
killing the machine on Ivybridge and other gen7. This includes LRI
emitted from the command parser.  The MI_SET_CONTEXT itself serves as
serialising barrier and prevents the pair of register writes in the first
packet from triggering the fault.  However, if a second switch-context
immediately occurs then we may have two adjacent blocks of LRI to the
same registers which may then trigger the hang. To counteract this we
need to insert a delay after the second register write using SRM.

This is easiest to reproduce with something like
igt/gem_ctx_switch/interruptible that triggers back-to-back context
switches (with no operations in between them in the command stream,
which requires the execbuf operation to be interrupted after the
MI_SET_CONTEXT) but can be observed sporadically elsewhere when running
interruptible igt. No reports from the wild though, so it must be of low
enough frequency that no one has correlated the random machine freezes
with i915.ko

The issue was introduced with
commit 2c550183476dfa25641309ae9a28d30feed14379 [v3.19]
Author: Chris Wilson 
Date:   Tue Dec 16 10:02:27 2014 +

drm/i915: Disable PSMI sleep messages on all rings around context switches

Testcase: igt/gem_ctx_switch/render-interruptible #ivb
Signed-off-by: Chris Wilson 
Cc: Daniel Vetter 
Cc: Ville Syrjälä 
Cc: sta...@vger.kernel.org
---
 drivers/gpu/drm/i915/i915_gem_context.c | 15 ---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem_context.c 
b/drivers/gpu/drm/i915/i915_gem_context.c
index fe580cb9501a..e5ad7b21e356 100644
--- a/drivers/gpu/drm/i915/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/i915_gem_context.c
@@ -539,7 +539,7 @@ mi_set_context(struct drm_i915_gem_request *req, u32 
hw_flags)
 
len = 4;
if (INTEL_INFO(engine->dev)->gen >= 7)
-   len += 2 + (num_rings ? 4*num_rings + 2 : 0);
+   len += 2 + (num_rings ? 4*num_rings + 6 : 0);
 
ret = intel_ring_begin(req, len);
if (ret)
@@ -579,6 +579,7 @@ mi_set_context(struct drm_i915_gem_request *req, u32 
hw_flags)
if (INTEL_INFO(engine->dev)->gen >= 7) {
if (num_rings) {
struct intel_engine_cs *signaller;
+   i915_reg_t last_reg = {}; /* keep gcc quiet */
 
intel_ring_emit(engine,
MI_LOAD_REGISTER_IMM(num_rings));
@@ -586,11 +587,19 @@ mi_set_context(struct drm_i915_gem_request *req, u32 
hw_flags)
if (signaller == engine)
continue;
 
-   intel_ring_emit_reg(engine,
-   
RING_PSMI_CTL(signaller->mmio_base));
+   last_reg = RING_PSMI_CTL(signaller->mmio_base);
+   intel_ring_emit_reg(engine, last_reg);
intel_ring_emit(engine,

_MASKED_BIT_DISABLE(GEN6_PSMI_SLEEP_MSG_DISABLE));
}
+
+   /* Insert a delay before the next switch! */
+   intel_ring_emit(engine,
+   MI_STORE_REGISTER_MEM |
+   MI_SRM_LRM_GLOBAL_GTT);
+   intel_ring_emit_reg(engine, last_reg);
+   intel_ring_emit(engine, engine->scratch.gtt_offset);
+   intel_ring_emit(engine, MI_NOOP);
}
intel_ring_emit(engine, MI_ARB_ON_OFF | MI_ARB_ENABLE);
}
-- 
2.8.0.rc3

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[Intel-gfx] ✗ Fi.CI.BAT: failure for drm/i915/userptr: Flush cancellations before mmu-notifier invalidate returns

2016-03-26 Thread Patchwork 
== Series Details ==

Series: drm/i915/userptr: Flush cancellations before mmu-notifier invalidate 
returns
URL   : https://patchwork.freedesktop.org/series/4910/
State : failure

== Summary ==

Series 4910v1 drm/i915/userptr: Flush cancellations before mmu-notifier 
invalidate returns
http://patchwork.freedesktop.org/api/1.0/series/4910/revisions/1/mbox/

Test kms_pipe_crc_basic:
Subgroup suspend-read-crc-pipe-c:
pass   -> DMESG-WARN (bsw-nuc-2)
pass   -> INCOMPLETE (hsw-gt2)
Test pm_rpm:
Subgroup basic-rte:
pass   -> DMESG-WARN (bsw-nuc-2)

bdw-nuci7total:192  pass:179  dwarn:0   dfail:0   fail:1   skip:12 
bdw-ultratotal:192  pass:170  dwarn:0   dfail:0   fail:1   skip:21 
bsw-nuc-2total:192  pass:153  dwarn:2   dfail:0   fail:0   skip:37 
byt-nuc  total:192  pass:156  dwarn:1   dfail:0   fail:0   skip:35 
hsw-brixbox  total:192  pass:170  dwarn:0   dfail:0   fail:0   skip:22 
hsw-gt2  total:81   pass:71   dwarn:0   dfail:0   fail:0   skip:9  
ivb-t430stotal:192  pass:167  dwarn:0   dfail:0   fail:0   skip:25 
skl-i7k-2total:192  pass:169  dwarn:0   dfail:0   fail:0   skip:23 
snb-dellxps  total:192  pass:158  dwarn:0   dfail:0   fail:0   skip:34 
snb-x220ttotal:192  pass:158  dwarn:0   dfail:0   fail:1   skip:33 

Results at /archive/results/CI_IGT_test/Patchwork_1721/

f5d413cccefa1f93d64c34f357151d42add63a84 drm-intel-nightly: 
2016y-03m-24d-14h-34m-29s UTC integration manifest
9e8e557cf0f3b2c3bd187fa7ba0c46d70d624ba6 drm/i915/userptr: Flush cancellations 
before mmu-notifier invalidate returns

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[Intel-gfx] ✗ Fi.CI.BAT: warning for series starting with [1/2] drm/i915: Update VBT fields for child devices

2016-03-26 Thread Patchwork 
== Series Details ==

Series: series starting with [1/2] drm/i915: Update VBT fields for child devices
URL   : https://patchwork.freedesktop.org/series/4909/
State : warning

== Summary ==

Series 4909v1 Series without cover letter
http://patchwork.freedesktop.org/api/1.0/series/4909/revisions/1/mbox/

Test pm_rpm:
Subgroup basic-pci-d3-state:
pass   -> DMESG-WARN (bsw-nuc-2)
pass   -> DMESG-WARN (byt-nuc)
Subgroup basic-rte:
dmesg-warn -> PASS   (byt-nuc) UNSTABLE

bdw-nuci7total:192  pass:179  dwarn:0   dfail:0   fail:1   skip:12 
bdw-ultratotal:192  pass:170  dwarn:0   dfail:0   fail:1   skip:21 
bsw-nuc-2total:192  pass:154  dwarn:1   dfail:0   fail:0   skip:37 
byt-nuc  total:192  pass:156  dwarn:1   dfail:0   fail:0   skip:35 
hsw-brixbox  total:192  pass:170  dwarn:0   dfail:0   fail:0   skip:22 
hsw-gt2  total:192  pass:175  dwarn:0   dfail:0   fail:0   skip:17 
ivb-t430stotal:192  pass:167  dwarn:0   dfail:0   fail:0   skip:25 
skl-i7k-2total:192  pass:169  dwarn:0   dfail:0   fail:0   skip:23 
snb-dellxps  total:192  pass:158  dwarn:0   dfail:0   fail:0   skip:34 
snb-x220ttotal:192  pass:158  dwarn:0   dfail:0   fail:1   skip:33 

Results at /archive/results/CI_IGT_test/Patchwork_1720/

f5d413cccefa1f93d64c34f357151d42add63a84 drm-intel-nightly: 
2016y-03m-24d-14h-34m-29s UTC integration manifest
98189b132ef9110aaf20243def274c7bb924670b drm/i915: Set invert bit for hpd based 
on VBT
5949d0034071d8a318ed39f8c6c7b543c0a6c190 drm/i915: Update VBT fields for child 
devices

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