Re: [Intel-gfx] [PULL] gvt-next

[Zhenyu Wang <zhenyuw@linux.intel.com>]

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On 2020.07.21 14:04:41 +0300, Joonas Lahtinen wrote:
> Quoting Zhenyu Wang (2020-07-20 11:05:41)
> > 
> > Hi,
> > 
> > Sorry that this might be a bit late as last week our QA people were
> > busy on something else..So this is gvt changes queued for 5.9 which is
> > to improve guest suspend/resume with proper PCI PM state tracking for
> > resource handling, e.g ppgtt. Hopefully this could still be in queue
> > for 5.9.
> 
> Is this a regression fix to a problem introduced by previous
> gvt-next PR targeting 5.9?
> 
> Or is it an incremental improvement over 5.8?
>

Second case. This is incremental improvement. Guest suspend/resume
did work somehow before but has bad performance and possible failure
with some guest versions.

Thanks

> 
> > 
> > Thanks
> > --
> > The following changes since commit d524b87f77364db096855d7eb714ffacec974ddf:
> > 
> >   drm/i915: Update DRIVER_DATE to 20200702 (2020-07-02 21:25:28 +0300)
> > 
> > are available in the Git repository at:
> > 
> >   https://github.com/intel/gvt-linux tags/gvt-next-2020-07-20
> > 
> > for you to fetch changes up to 02b5fc1527c0bb26a1012c6a806dc033f3b125a6:
> > 
> >   drm/i915/gvt: Remove intel_vgpu_reset_gtt() since no one use it. (2020-07-14 16:42:14 +0800)
> > 
> > ----------------------------------------------------------------
> > gvt-next-2020-07-20
> > 
> > - Improve guest suspend/resume handling (Colin)
> > 
> > ----------------------------------------------------------------
> > Colin Xu (3):
> >       drm/i915/gvt: Do not destroy ppgtt_mm during vGPU D3->D0.
> >       drm/i915/gvt: Do not reset pv_notified when vGPU transit from D3->D0
> >       drm/i915/gvt: Remove intel_vgpu_reset_gtt() since no one use it.
> > 
> >  drivers/gpu/drm/i915/gvt/cfg_space.c | 24 ++++++++++++++++++++++++
> >  drivers/gpu/drm/i915/gvt/gtt.c       | 20 +-------------------
> >  drivers/gpu/drm/i915/gvt/gtt.h       |  3 ++-
> >  drivers/gpu/drm/i915/gvt/gvt.h       |  3 +++
> >  drivers/gpu/drm/i915/gvt/vgpu.c      | 20 +++++++++++++++++---
> >  5 files changed, 47 insertions(+), 23 deletions(-)
> > --

-- 
Open Source Technology Center, Intel ltd.

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