Lukas Wunner aa0aad5790 drm/amdgpu: Fix deadlock on runtime suspend ... amdgpu's ->runtime_suspend hook calls drm_kms_helper_poll_disable(), which waits for the output poll worker to finish if it's running. The output poll worker meanwhile calls pm_runtime_get_sync() in amdgpu's ->detect hooks, which waits for the ongoing suspend to finish, causing a deadlock. Fix by not acquiring a runtime PM ref if the ->detect hooks are called in the output poll worker's context. This is safe because the poll worker is only enabled while runtime active and we know that ->runtime_suspend waits for it to finish. Fixes: d38ceaf99e ("drm/amdgpu: add core driver (v4)") Cc: stable@vger.kernel.org # v4.2+: 27d4ee0307: workqueue: Allow retrieval of current task's work struct Cc: stable@vger.kernel.org # v4.2+: 25c058ccaf: drm: Allow determining if current task is output poll worker Cc: Alex Deucher <alexander.deucher@amd.com> Tested-by: Mike Lothian <mike@fireburn.co.uk> Reviewed-by: Lyude Paul <lyude@redhat.com> Signed-off-by: Lukas Wunner <lukas@wunner.de> Link: https://patchwork.freedesktop.org/patch/msgid/4c9bf72aacae1eef062bd134cd112e0770a7f121.1518338789.git.lukas@wunner.de		2018-02-16 22:40:23 +01:00
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drm	drm/amdgpu: Fix deadlock on runtime suspend	2018-02-16 22:40:23 +01:00
host1x	main drm pull request for v4.15	2017-11-15 20:42:10 -08:00
ipu-v3	fixes/cleanups for rc1, non-desktop flags for VR	2017-11-23 21:04:56 -10:00
vga
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