On 03/07/2011 07:00 AM, Chris Wilson wrote:
Dave, hopefully this completes the regression fixes for .38. There is
still some doubt over eDP, with 011b9910bdaf failing for Jim Gettys but
seeming required for other (currently working in .37) machines. And
despite Linus's intervention, backlight controls are still broken for some
users.
FWIW:
The failure is not so common for me as to claim the change should not go
in; and my work around is to suspend/resume the system again.
It's mostly niggling discomfort that there is still something about eDP
we still don't understand...
The remaining question, of course, is whether the other fixes in the
final release will continue the fine year long tradition of completely
breaking my laptop in Linus' releases yet again ;-).
- Jim
I've taken the conservative approach and disabled GPU semaphores by
default since that prevents one cause of hangs, even though I think it is
fixed by the earlier patch to prevent the FIFO overflow. The other patch
addresses a bug introduced by the combination of relaxed fencing and fence
pipelining infrastructure where to forgot to teardown a bound buffer if it
invalidated its new alignment constraints. Hopefully this will fix the
reported corruption for gen2/3 devices, though there is the possibility of
further underlying bugs.
-Chris
The following changes since commit fb62c00a6d8942775abc23d1621db1252e2d93d1:
Merge branch 'for-linus' of
git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client (2011-03-05
10:43:22 -0800)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/ickle/drm-intel.git
drm-intel-fixes
Chris Wilson (4):
Revert "drm/i915: fix corruptions on i8xx due to relaxed fencing"
drm/i915: Do not overflow the MMADDR write FIFO
drm/i915: Disable GPU semaphores by default
drm/i915: Rebind the buffer if its alignment constraints changes with
tiling
drivers/gpu/drm/i915/i915_debugfs.c | 4 +-
drivers/gpu/drm/i915/i915_drv.c | 17 +++++++++++-
drivers/gpu/drm/i915/i915_drv.h | 24 ++++++++++++++----
drivers/gpu/drm/i915/i915_gem.c | 2 +-
drivers/gpu/drm/i915/i915_gem_execbuffer.c | 4 +-
drivers/gpu/drm/i915/i915_gem_tiling.c | 37 +++++++++++++--------------
drivers/gpu/drm/i915/i915_reg.h | 2 +
drivers/gpu/drm/i915/intel_display.c | 8 +++---
drivers/gpu/drm/i915/intel_ringbuffer.h | 13 +++++----
9 files changed, 70 insertions(+), 41 deletions(-)
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