[Nouveau] [Bug 50121] [Regression] Since kernel v3.5 several cards fail to resume, introduced by: 'convert to exec engine, and improve channel sync'

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=50121

--- Comment #68 from Ronald <ronald645 at gmail.com> ---
Is it consistent, git says 'no':

ronald at Alpha /usr/src/linux :) $ git log --oneline --no-merges v3.7.4...v3.7.9
-- drivers/gpu/drm
330b8ab drm/nouveau: add lockdep annotations
c7fc196 drm/radeon: Calling object_unrefer() when creating fb failure
b666341 drm/radeon: prevent crash in the ring space allocation
3e15c0b drm/radeon: protect against div by 0 in backend setup
f69c00e drm/radeon: fix backend map setup on 1 RB sumo boards
cb23301 drm/radeon: fix MC blackout on evergreen+
04589e1 drm/radeon: add quirk for RV100 board
4e370f5 drm/radeon: add WAIT_UNTIL to the non-VM safe regs list for cayman/TN
83f83a0 drm/radeon/evergreen+: wait for the MC to settle after MC blackout
ec8a7ca drm/i915: fix FORCEWAKE posting reads
710c8f5 drm/radeon: fix a rare case of double kfree
c140fec drm/radeon: fix error path in kpage allocation
72b56e8 efi: Make 'efi_enabled' a function to query EFI facilities
8a9d24b drm/i915: dump UTS_RELEASE into the error_state
36ce28c drm/i915: GFX_MODE Flush TLB Invalidate Mode must be '1' for scanline
waits
924782c drm/i915: Disable AsyncFlip performance optimisations
18c8e49 radeon_display: Use pointer return error codes
45bced1 drm/radeon: fix cursor corruption on DCE6 and newer
dd1b4df drm/i915: Implement WaDisableHiZPlanesWhenMSAAEnabled
5afeb70 drm/i915: Invalidate the relocation presumed_offsets along the slow
path

Don't think the lockdep annotations do anything that changes the code. But you
might want to give it a try...

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