Re: [PATCH 00/12] Broadwell 3.14 backports

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On Sat, Mar 22, 2014 at 4:34 AM, Daniel Vetter <daniel@xxxxxxxx> wrote:
> On Fri, Mar 21, 2014 at 05:51:01PM -0700, Ben Widawsky wrote:
>> Let's try this again. I've pushed a branch here:
>> http://cgit.freedesktop.org/~bwidawsk/drm-intel/log/?h=bdw-backports
>>
>> I need to re-review some of the merge conflicts for 4g GGTT, which I
>> will try to do before Monday.
>>
>> Daniel: please make sure this is what you had in mind. I don't know
>> where you want Cc: stable tags.
>
> We don't need cc: stable, we just need to submit it (since it has the
> upstream sha1s already, which is the requirement for stable patches). Cc:
> stable is only for when you want it to get backport anyway. Otherwise
> looks good. I dunno whether git cherry-pick can be told to use the sha1
> reference layout Greg prefers or not, he uses "This is <sha1> in
> upstream." between the commit header and the actual commit message. But
> ime his scripts reformat your commit messages anyway.
>
>> James: please test this as soon as possible.
>
> Once this is tested and we conclude it's sufficient to get bdw going on
> 3.14 without hilarity I think we should do a quick review on intel-gfx to
> check that the impact outside of bdw is indeed minimal. Then once drm-next
> has landed with all the referenced commits we can submit it to Greg with a
> small cover letter why we want this and that plan B would be to kill bdw
> in 3.14.

This seems to be working well for me, with the one caveat that on boot
and once per resume I'm hitting the WARN(!i915_preliminary_hw_support,
"GEN8_CENTROID_PIXEL_OPT_DIS not be needed for production") code in
gen8_init_clock_gating - can that WARN be dropped via "drm/i915: Don't
use i915_preliminary_hw_support to mean pre-production" ?

Both with and without that patch added, the series is:

Tested-by: James Ausmus <james.ausmus@xxxxxxxxx>


>
> Thanks for doing this,
> Daniel
>
>>
>> Thanks.
>>
>>
>> On Fri, Mar 21, 2014 at 11:48:09AM -0700, Ben Widawsky wrote:
>> > The following patches are the backported "simple" fixes for 3.14. Some
>> > of these already had Cc: stable on them, but required conflict
>> > resolution which I've provided (presumably they canbe dropped if it's
>> > easier for upstream). There will be another series of backports which
>> > has fixes that require more than a single patch.
>> >
>> > I will not have a machine to test these on until Monday, but I am
>> > mailing them out now in case our QA can get it tested sooner.
>> >
>> > Ben Widawsky (2):
>> >   drm/i915/bdw: Use scratch page table for GEN8 PPGTT
>> >   drm/i915/bdw: Restore PPAT on thaw
>> >
>> > Damien Lespiau (1):
>> >   drm/i915/bdw: The TLB invalidation mechanism has been removed from
>> >     INSTPM
>> >
>> > Jani Nikula (1):
>> >   drm/i915: don't flood the logs about bdw semaphores
>> >
>> > Kenneth Graunke (2):
>> >   drm/i915: Add a partial instruction shootdown workaround on Broadwell.
>> >   drm/i915: Add thread stall DOP clock gating workaround on Broadwell.
>> >
>> > Mika Kuoppala (2):
>> >   drm/i915: Fix forcewake counts for gen8
>> >   drm/i915: Do forcewake reset on gen8
>> >
>> > Ville Syrjälä (4):
>> >   drm/i915: Disable semaphore wait event idle message on BDW
>> >   drm/i915: Implement WaDisableSDEUnitClockGating:bdw
>> >   drm/i915: We implement WaDisableAsyncFlipPerfMode:bdw
>> >   drm/i915: Don't clobber CHICKEN_PIPESL_1 on BDW
>> >
>> >  drivers/gpu/drm/i915/i915_drv.c         |  5 ++++-
>> >  drivers/gpu/drm/i915/i915_gem_gtt.c     |  7 +++++++
>> >  drivers/gpu/drm/i915/i915_reg.h         | 10 ++++++++++
>> >  drivers/gpu/drm/i915/intel_pm.c         | 18 ++++++++++++++++--
>> >  drivers/gpu/drm/i915/intel_ringbuffer.c | 12 +++++++++---
>> >  drivers/gpu/drm/i915/intel_uncore.c     | 29 +++++++++++++++--------------
>> >  6 files changed, 61 insertions(+), 20 deletions(-)
>> >
>> > --
>> > 1.9.1
>> >
>> > _______________________________________________
>> > Intel-gfx mailing list
>> > Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
>> > http://lists.freedesktop.org/mailman/listinfo/intel-gfx
>>
>> --
>> Ben Widawsky, Intel Open Source Technology Center
>
> --
> Daniel Vetter
> Software Engineer, Intel Corporation
> +41 (0) 79 365 57 48 - http://blog.ffwll.ch



-- 


James Ausmus
Sr. Software Engineer
SSG-OTC ChromeOS Integration
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