Hello, I've bisected kernel and have found the regression that deadlocks GPU on hibernation. Bug https://bugs.freedesktop.org/show_bug.cgi?id=98513 [spstarr at segfault linux]$ git bisect bad 86f8c599b09c916f9aad30563271440dbd79213a is the first bad commit commit 86f8c599b09c916f9aad30563271440dbd79213a Author: Rex Zhu <Rex.Zhu at amd.com> Date: Mon Oct 3 20:46:36 2016 +0800 drm/amdgpu: when suspend, set boot state instand of disable dpm. fix pm-hibernate bug, when suspend/resume, dpm start failed. Signed-off-by: Rex Zhu <Rex.Zhu at amd.com> Acked-by: Christian König <christian.koenig at amd.com> Reviewed-by: Alex Deucher <alexander.deucher at amd.com> Signed-off-by: Alex Deucher <alexander.deucher at amd.com> :040000 040000 5537c5937b203abdb5c48c5a0dc8dc5f6a3d00f2 7f048011c861d8c35b922fd94f089cd07d670f60 M drivers [spstarr at segfault linux]$ git bisect log git bisect start # good: [1001354ca34179f3db924eb66672442a173147dc] Linux 4.9-rc1 git bisect good 1001354ca34179f3db924eb66672442a173147dc # bad: [2f5945e707b5dffbf12444ad8bea079626ad30ec] drm/amdgpu: add the interface of waiting multiple fences (v4) git bisect bad 2f5945e707b5dffbf12444ad8bea079626ad30ec # good: [61d0a04d6f5b2122f88aacbc4b1716e571961660] Merge tag 'topic/drm-misc-2016-10-24' of git://anongit.freedesktop.org/drm-intel into drm-next git bisect good 61d0a04d6f5b2122f88aacbc4b1716e571961660 # good: [e4ab73a13291fc844c9e24d5c347bd95818544d2] drm/i915: Respect alternate_ddc_pin for all DDI ports git bisect good e4ab73a13291fc844c9e24d5c347bd95818544d2 # bad: [415282b15e15c2d7fb18e29c5b554cc7f4ff5c52] drm/amdgpu: disable dpm before turn off clock when vce idle. git bisect bad 415282b15e15c2d7fb18e29c5b554cc7f4ff5c52 # good: [392f0c775c80de0eae4c07227cc220015df70abc] drm/amdgpu/gfx8: cache rb config values git bisect good 392f0c775c80de0eae4c07227cc220015df70abc # good: [472259f02657ef99cba2a64832ccadad8e3baabe] drm/amd/amdgpu: re-factor debugfs wave reader git bisect good 472259f02657ef99cba2a64832ccadad8e3baabe # good: [f1e68a7cf582b41d6da1dd15b9f0bfb9057c1164] drm/amdgpu/atom: remove a bunch of unused functions git bisect good f1e68a7cf582b41d6da1dd15b9f0bfb9057c1164 # good: [585ffd65441a4aea7e762d17f7a248d07cd1c9ac] drm/ttm: fix coding style in ttm_bo_driver.h git bisect good 585ffd65441a4aea7e762d17f7a248d07cd1c9ac # good: [8ed8147abc7cf1f689245deb316aabfe2f657ade] drm/amdgpu: use failed label to handle context init failure git bisect good 8ed8147abc7cf1f689245deb316aabfe2f657ade # bad: [3f767e3d076dd2a24a614917c8f0b05d8d82b90b] drm/amdgpu: just not load smc firmware if smu is already running git bisect bad 3f767e3d076dd2a24a614917c8f0b05d8d82b90b # bad: [86f8c599b09c916f9aad30563271440dbd79213a] drm/amdgpu: when suspend, set boot state instand of disable dpm. git bisect bad 86f8c599b09c916f9aad30563271440dbd79213a # first bad commit: [86f8c599b09c916f9aad30563271440dbd79213a] drm/amdgpu: when suspend, set boot state instand of disable dpm. Thanks, Shawn
