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            <b><a class="bz_bug_link 
          bz_status_ASSIGNED "
   title="ASSIGNED - [SKL] igt / kms_frontbuffer_tracking / FBC subcases fail"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=92854#c7">Comment # 7</a>
              on <a class="bz_bug_link 
          bz_status_ASSIGNED "
   title="ASSIGNED - [SKL] igt / kms_frontbuffer_tracking / FBC subcases fail"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=92854">bug 92854</a>
              from <span class="vcard"><a class="email" href="mailto:ramix.ben.hassine@intel.com" title="Rami <ramix.ben.hassine@intel.com>"> <span class="fn">Rami</span></a>
</span></b>
        <pre>Created <span class=""><a href="attachment.cgi?id=121296" name="attach_121296" title="dmesg">attachment 121296</a> <a href="attachment.cgi?id=121296&action=edit" title="dmesg">[details]</a></span>
dmesg

Reproduced on BXT with the last setup:

Setup:
======
Platform: Broxton P A0 Platform
CPU Name : Intel(R) @ 1.2 GHz (family: 6, model: 92, stepping: 8) – 4 cores
SoC : BROXTON-P A0
CRB :  Apollo Lake RVPC1 Fab1 
Reworks : R14, R06C and R16
Monitors: Asus PB287Q (4K), Samsung S24C650

Software:
=========
BIOS (IFWI Version): APLK_IFWI_X64_R_2015_41_5_02 
KSC : 1.02
Linux distribution: Ubuntu 15.10 64 bits
Kernel: drm-intel-nightly 4.4.0 8114b00 from
<a href="http://cgit.freedesktop.org/drm-intel/">http://cgit.freedesktop.org/drm-intel/</a>
drm: tag libdrm-2.4.66 e342c0f from <a href="http://cgit.freedesktop.org/mesa/drm/">http://cgit.freedesktop.org/mesa/drm/</a>
mesa: tag mesa-11.0.8 261daab from <a href="http://cgit.freedesktop.org/mesa/mesa/">http://cgit.freedesktop.org/mesa/mesa/</a>
cairo: tag 1.15.2 db8a7f1 from <a href="http://cgit.freedesktop.org/cairo">http://cgit.freedesktop.org/cairo</a>
waffle: master bb29b2a from <a href="https://github.com/waffle-gl/waffle">https://github.com/waffle-gl/waffle</a>
xorg-server-macros: master d7acec2 from
git://git.freedesktop.org/git/xorg/util/macros
libva: tag libva-1.6.1 cb418f6 from <a href="http://cgit.freedesktop.org/libva/">http://cgit.freedesktop.org/libva/</a>
vaapi-intel-driver: tag 1.6.1 2110b3a from
<a href="http://cgit.freedesktop.org/vaapi/intel-driver">http://cgit.freedesktop.org/vaapi/intel-driver</a>
Tools:
======
intel-gpu-tool: tag intel-gpu-tools-1.13 51e965f from
<a href="http://cgit.freedesktop.org/xorg/app/intel-gpu-tools/">http://cgit.freedesktop.org/xorg/app/intel-gpu-tools/</a>

Steps:
======
./kms_frontbuffer_tracking --run-subtest fbc-tilingchange


Actual results:
===============
 ./kms_frontbuffer_tracking --run-subtest fbc-tilingchange
IGT-Version: 1.13-NOT-GIT (x86_64) (Linux: 4.4.0-nightly+ x86_64)
Primary screen: DP 1920x1080
FBC last action not supported
Can't test PSR: no usable eDP screen.
Sink CRC not supported: primary screen is not eDP
(kms_frontbuffer_tracking:1198) CRITICAL: Test assertion failure function
page_flip_for_params, file kms_frontbuffer_tracking.c:2236:
(kms_frontbuffer_tracking:1198) CRITICAL: Failed assertion: rc == 0
(kms_frontbuffer_tracking:1198) CRITICAL: Last errno: 22, Invalid argument
(kms_frontbuffer_tracking:1198) CRITICAL: error: -22 != 0
Stack trace:
  #0 [__igt_fail_assert+0xf1]
  #1 [page_flip_for_params+0xab]
  #2 [tilingchange_subtest+0xaf]
  #3 [main+0x245f]
  #4 [__libc_start_main+0xf0]
  #5 [_start+0x29]
  #6 [<unknown>+0x29]
Subtest fbc-tilingchange failed.
**** DEBUG ****
(kms_frontbuffer_tracking:1198) DEBUG: Test requirement passed: fbc.can_test
(kms_frontbuffer_tracking:1198) igt-fb-DEBUG:
igt_create_fb_with_bo_size(width=1920, height=1080, format=0x34325258 [bpp=32],
tiling=0x100000000000001, size=0)
(kms_frontbuffer_tracking:1198) igt-fb-DEBUG:
igt_create_fb_with_bo_size(handle=6, pitch=8192)
(kms_frontbuffer_tracking:1198) DEBUG: Blue CRC:   pipe:[f57eca81 00000000
00000000 00000000 00000000] sink:[unsupported!]
(kms_frontbuffer_tracking:1198) igt-draw-DEBUG: Test requirement passed:
intel_gen(intel_get_drm_devid(fd)) >= 5
(kms_frontbuffer_tracking:1198) DEBUG: Calculated CRC: pipe:[f57eca81 00000000
00000000 00000000 00000000] sink:[unsupported!]
(kms_frontbuffer_tracking:1198) DEBUG: Test requirement passed:
!fbc_not_enough_stolen()
(kms_frontbuffer_tracking:1198) DEBUG: Calculated CRC: pipe:[f57eca81 00000000
00000000 00000000 00000000] sink:[unsupported!]
(kms_frontbuffer_tracking:1198) igt-fb-DEBUG:
igt_create_fb_with_bo_size(width=1920, height=1080, format=0x34325258 [bpp=32],
tiling=0x0, size=0)
(kms_frontbuffer_tracking:1198) igt-fb-DEBUG:
igt_create_fb_with_bo_size(handle=6, pitch=7680)
(kms_frontbuffer_tracking:1198) DEBUG: Flip type: 0
(kms_frontbuffer_tracking:1198) CRITICAL: Test assertion failure function
page_flip_for_params, file kms_frontbuffer_tracking.c:2236:
(kms_frontbuffer_tracking:1198) CRITICAL: Failed assertion: rc == 0
(kms_frontbuffer_tracking:1198) CRITICAL: Last errno: 22, Invalid argument
(kms_frontbuffer_tracking:1198) CRITICAL: error: -22 != 0
****  END  ****
Subtest fbc-tilingchange: FAIL (1.908s)

Expected result:
================
test pass</pre>
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