Created attachment 108558 [details]
dmesg

==System Environment==
--------------------------
Regression: No.
It's new case

Non-working platforms: BDW

==kernel==
--------------------------
origin/drm-intel-nightly: 32cefad9992e67b4ee7487adf465bd7e189c9c1c(fails)
    drm-intel-nightly: 2014y-10m-27d-11h-39m-04s UTC integration manifest
origin/drm-intel-next-queued: 9d34570b5dae6c0c389d6a99dbc52b62beef25b2(fails)
    drm/i915: Remove unnecessary test on the gen in intel_do_mmio_flip()
origin/drm-intel-fixes: 6be1e3d3ea29354d7c834a3936e796e185d5c73b(fails)
    drm/i915: Fix GMBUSFREQ on vlv/chv

==Bug detailed description==
igt/gem_workarounds some subcases fail

Output:
root@x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./gem_workarounds --run-subtest suspend-resume
IGT-Version: 1.8-gcba3088 (x86_64) (Linux: 3.17.0-rc5_drm-intel-next-queued_9d3457_20141028+ x86_64)
Suspending the device ...
rtcwake: wakeup from ""mem"" using /dev/rtc0 at Tue Oct 28 20:19:11 2014
0x0E4F0 0x01200120      0x00000120      0xFFFF0000      FAIL
0x0E4F4 0x00010001      0x00000001      0xFFFF0000      FAIL
0x0E184 0x00020002      0x00000002      0x00000000      FAIL
0x07300 0x00100010      0x00000010      0x00000000      FAIL
0x07004 0x00400040      0x00000040      0x00000180      FAIL
0x07008 0x02800200      0x00000200      0x00000000      FAIL
Test assertion failure function check_workarounds, file gem_workarounds.c:178:
Failed assertion: workaround_fail_count() == 0
Subtest suspend-resume: FAIL (1.398s)
root@x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./gem_workarounds --run-subtest reset
IGT-Version: 1.8-gcba3088 (x86_64) (Linux: 3.17.0-rc5_drm-intel-next-queued_9d3457_20141028+ x86_64)
0x0E4F0 0x01200120      0x00000120      0xFFFF0000      FAIL
0x0E4F4 0x00010001      0x00000001      0xFFFF0000      FAIL
0x0E184 0x00020002      0x00000002      0x00000000      FAIL
0x07300 0x00100010      0x00000010      0x00000000      FAIL
0x07004 0x00400040      0x00000040      0x00000180      FAIL
0x07008 0x02800200      0x00000200      0x00000000      FAIL
Test assertion failure function check_workarounds, file gem_workarounds.c:160:
Failed assertion: workaround_fail_count() == 0
Subtest reset: FAIL (0.000s)
root@x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# dmesg -r|egrep ""<[1-4]>""|grep drm
<3>[   67.873400] [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem.

==Reproduce steps==
---------------------------- 
1. ./gem_workarounds --run-subtest suspend-resume