Re: [PATCH 0/7] Runtime PM fixes (resend)

Daniel Vetter
2014-04-01T20:45:05Z

On Tue, Apr 01, 2014 at 02:55:06PM -0300, Paulo Zanoni wrote:
> From: Paulo Zanoni <paulo.r.zanoni@intel.com>
>
> Hi
>
> This is a resend of the patches I have that fix the runtime PM WARNs we get
> while running IGT's pm_pc8 test on Haswell.
>
> Right now, runtime PM is completely broken and these patches should put it back
> to the state where it was before. The issue fixed by the first patch completely
> breaks runtime PM, so we don't have Bugzilla tags for the other issues because
> our QA couldn't even discover them due to the lack of the first patch on our
> trees. I have tested this series locally on my Haswell machine and it works.

Pulled in the entire series for 3.15-fixes, thanks. Please supply the
backtrace for the one case I've replied to so I can add it to the commit
message.
-Daniel

>
> Thanks,
> Paulo
>
> Paulo Zanoni (7):
> drm/i915: don't schedule force_wake_timer at gen6_read
> drm/i915: get runtime PM at i915_reg_read_ioctl
> drm/i915: don't read pp_ctrl_reg if we're suspended
> drm/i915: get runtime PM at i915_display_info
> drm/i915: don't read cursor registers on powered down pipes
> drm/i915: fix WARNs when reading DDI state while suspended
> drm/i915: don't get/put runtime PM at the debugfs forcewake file
>
> drivers/gpu/drm/i915/i915_debugfs.c | 18 ++++++++++--------
> drivers/gpu/drm/i915/intel_ddi.c | 5 +++++
> drivers/gpu/drm/i915/intel_dp.c | 3 ++-
> drivers/gpu/drm/i915/intel_pm.c | 3 +++
> drivers/gpu/drm/i915/intel_uncore.c | 20 +++++++++++++-------
> 5 files changed, 33 insertions(+), 16 deletions(-)
>
> --
> 1.8.5.3
>
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--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch