Quoting Joonas Lahtinen (2019-01-15 16:47:27) > Hi all, > > I would like to have some Acked-by's from you, the distro media > folks Cc'd here, to document your intent to start using Intel's > new media driver[1]. So if you recognize yourself (or are otherwise > interested), please read on. > > TL;DR Distro folks, please give your Acked-by on patch [5/6] A gentle reminder, I'm still looking to hear back from Stephane and Dave. We'd like to have this included in the final 5.1 drm-intel-next pull request this week. If there are no further comments by Wed, I will conclude that we have reached a silent agreement, and merge this to give enough time for Rodrigo to send the PR. Regards, Joonas > I believe most are already aware of the situation that Intel > is moving to the new codebase for libva backend to support new Intel > integrated graphics devices. The existing intel-libva-driver will > be continue to be be supported for pre-Icelake platforms (<Gen11). > Icelake and further platforms will only be supported from the > new codebase. > > There's the complication that some Icelake features of the new > driver will require new kernel uAPIs to work... But the new driver > has not yet been well-established in the community from perspective > of fulfilling [2]. This is very much due to the demand being low > as Icelake is not widely available yet. So it's bit of a chicken > and egg problem as we have a new platform *and* a new codebase for > it simultaneously. > > Ahead of that community adoption, to ensure that Icelake has good > kernel support from day one, we'd like to merge kernel support for > the parts that have functional effect (this series). This is to > avoid the scenario where end users have to update their distro > kernels, like happened with Skylake. > > So if I could get Acked-by's from distro folks on the patch [5/6] that > adds the new uAPI. That would document their intent to become an active > user of the media-driver[1]. If that happens in the next week or two, > it would mean that Icelake hardware features would be supported in > kernel version 5.1 fully from kernel driver point of view. > > The new uAPI is needed to make VME feature functionally work > on Icelake. It's pretty much a simple enable/disable switch for > hardware configuration that only includes hardware slices compatible > with the VME workload. So it's currently limited to the required on/off > choice to keep things straightforward. The uAPI can be extended in the > future for possible performance gains for more fine-grained control. > > VME is shared function to handle motion estimation. One intended > usercase is in Hierarchical Motion Estimation (HME) media kernel. It > provides a bigger search range with reduced cost for the search. HME > should improve the encode quality with scenarios where the video has > a lot of motion in it. Carl (Cc'd) can provide more details if needed. > > The respective IGT tests are reviewed and can be found at: > > https://patchwork.freedesktop.org/series/49190/ > > The userspace changes are reviewed and rebased here: > > https://github.com/intel/media-driver/pull/271 > https://github.com/intel/media-driver/pull/463 > > Best Regards, Joonas Lahtinen > > Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx > Cc: Timo Aaltonen <timo.aaltonen@xxxxxxxxxxxxx> > Cc: Takashi Iwai <tiwai@xxxxxxx> > Cc: Stephane Marchesin <stephane.marchesin@xxxxxxxxx> > Cc: Dave Airlie <airlied@xxxxxxxxxx> > Cc: Daniel Vetter <daniel@xxxxxxxx> > > PS. This series might result in some CI failures reported as it adds new uAPI > and Patchwork / CI synchronization of tests and kernel is currently WIP. > > [1] https://github.com/intel/media-driver > [2] https://01.org/linuxgraphics/gfx-docs/drm/gpu/drm-uapi.html#open-source-userspace-requirements > > Lionel Landwerlin (2): > drm/i915: Record the sseu configuration per-context & engine > drm/i915/perf: lock powergating configuration to default when active > > Tvrtko Ursulin (4): > drm/i915/execlists: Move RPCS setup to context pin > drm/i915: Add timeline barrier support > drm/i915: Expose RPCS (SSEU) configuration to userspace (Gen11 only) > drm/i915/selftests: Context SSEU reconfiguration tests > > drivers/gpu/drm/i915/i915_drv.h | 14 + > drivers/gpu/drm/i915/i915_gem_context.c | 354 ++++++++++++- > drivers/gpu/drm/i915/i915_gem_context.h | 10 + > drivers/gpu/drm/i915/i915_perf.c | 13 +- > drivers/gpu/drm/i915/i915_request.c | 13 + > drivers/gpu/drm/i915/i915_request.h | 10 + > drivers/gpu/drm/i915/i915_timeline.c | 3 + > drivers/gpu/drm/i915/i915_timeline.h | 27 + > drivers/gpu/drm/i915/intel_lrc.c | 100 ++-- > drivers/gpu/drm/i915/intel_lrc.h | 2 + > .../gpu/drm/i915/selftests/i915_gem_context.c | 481 ++++++++++++++++++ > .../gpu/drm/i915/selftests/mock_timeline.c | 2 + > include/uapi/drm/i915_drm.h | 64 +++ > 13 files changed, 1056 insertions(+), 37 deletions(-) > > -- > 2.17.2 > _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
