Re: [PATCH v6 6/6] drm/i915: Add NV12 as supported format for sprite plane

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> -----Original Message-----
> From: Maarten Lankhorst [mailto:maarten.lankhorst@xxxxxxxxxxxxxxx]
> Sent: Monday, May 7, 2018 2:08 PM
> To: Srinivas, Vidya <vidya.srinivas@xxxxxxxxx>; intel-
> gfx@xxxxxxxxxxxxxxxxxxxxx
> Subject: Re:  [PATCH v6 6/6] drm/i915: Add NV12 as supported
> format for sprite plane
> 
> Op 07-05-18 om 10:34 schreef Srinivas, Vidya:
> >
> >> -----Original Message-----
> >> From: Maarten Lankhorst [mailto:maarten.lankhorst@xxxxxxxxxxxxxxx]
> >> Sent: Monday, May 7, 2018 1:59 PM
> >> To: Srinivas, Vidya <vidya.srinivas@xxxxxxxxx>; intel-
> >> gfx@xxxxxxxxxxxxxxxxxxxxx
> >> Subject: Re:  [PATCH v6 6/6] drm/i915: Add NV12 as
> >> supported format for sprite plane
> >>
> >> Op 07-05-18 om 10:29 schreef Srinivas, Vidya:
> >>>> -----Original Message-----
> >>>> From: Maarten Lankhorst [mailto:maarten.lankhorst@xxxxxxxxxxxxxxx]
> >>>> Sent: Monday, May 7, 2018 1:55 PM
> >>>> To: Srinivas, Vidya <vidya.srinivas@xxxxxxxxx>; intel-
> >>>> gfx@xxxxxxxxxxxxxxxxxxxxx
> >>>> Subject: Re:  [PATCH v6 6/6] drm/i915: Add NV12 as
> >>>> supported format for sprite plane
> >>>>
> >>>> Op 07-05-18 om 10:20 schreef Srinivas, Vidya:
> >>>>>> -----Original Message-----
> >>>>>> From: Srinivas, Vidya
> >>>>>> Sent: Monday, May 7, 2018 1:46 PM
> >>>>>> To: 'Maarten Lankhorst' <maarten.lankhorst@xxxxxxxxxxxxxxx>;
> >>>>>> intel- gfx@xxxxxxxxxxxxxxxxxxxxx
> >>>>>> Subject: RE:  [PATCH v6 6/6] drm/i915: Add NV12 as
> >>>>>> supported format for sprite plane
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>>> -----Original Message-----
> >>>>>>> From: Maarten Lankhorst
> >>>>>>> [mailto:maarten.lankhorst@xxxxxxxxxxxxxxx]
> >>>>>>> Sent: Monday, May 7, 2018 1:44 PM
> >>>>>>> To: Srinivas, Vidya <vidya.srinivas@xxxxxxxxx>; intel-
> >>>>>>> gfx@xxxxxxxxxxxxxxxxxxxxx
> >>>>>>> Subject: Re:  [PATCH v6 6/6] drm/i915: Add NV12 as
> >>>>>>> supported format for sprite plane
> >>>>>>>
> >>>>>>> Op 07-05-18 om 10:11 schreef Srinivas, Vidya:
> >>>>>>>>> -----Original Message-----
> >>>>>>>>> From: Maarten Lankhorst
> >>>>>>>>> [mailto:maarten.lankhorst@xxxxxxxxxxxxxxx]
> >>>>>>>>> Sent: Monday, May 7, 2018 1:38 PM
> >>>>>>>>> To: Srinivas, Vidya <vidya.srinivas@xxxxxxxxx>; intel-
> >>>>>>>>> gfx@xxxxxxxxxxxxxxxxxxxxx
> >>>>>>>>> Subject: Re:  [PATCH v6 6/6] drm/i915: Add NV12 as
> >>>>>>>>> supported format for sprite plane
> >>>>>>>>>
> >>>>>>>>> Op 06-05-18 om 19:44 schreef Vidya Srinivas:
> >>>>>>>>>> From: Chandra Konduru <chandra.konduru@xxxxxxxxx>
> >>>>>>>>>>
> >>>>>>>>>> This patch adds NV12 to list of supported formats for sprite
> plane.
> >>>>>>>>>>
> >>>>>>>>>> v2: Rebased (me)
> >>>>>>>>>>
> >>>>>>>>>> v3: Review comments by Ville addressed
> >>>>>>>>>> - Removed skl_plane_formats_with_nv12 and added
> >>>>>>>>>> NV12 case in existing skl_plane_formats
> >>>>>>>>>> - Added the 10bpc RGB formats
> >>>>>>>>>>
> >>>>>>>>>> v4: Addressed review comments from Clinton A Taylor "Why
> are
> >> we
> >>>>>>>>> adding
> >>>>>>>>>> 10 bit RGB formats with the NV12 series patches?
> >>>>>>>>>> Trying to set XR30 or AB30 results in error returned even
> >>>>>>>>>> though the modes are advertised for the planes"
> >>>>>>>>>> - Removed 10bit RGB formats added previously with NV12
> series
> >>>>>>>>>>
> >>>>>>>>>> v5: Missed the Tested-by/Reviewed-by in the previous series
> >>>>>>>>>> Adding the same to commit message in this version.
> >>>>>>>>>> Addressed review comments from Clinton A Taylor "Why are
> we
> >>>>>> adding
> >>>>>>>>>> 10 bit RGB formats with the NV12 series patches?
> >>>>>>>>>> Trying to set XR30 or AB30 results in error returned even
> >>>>>>>>>> though the modes are advertised for the planes"
> >>>>>>>>>> - Previous version has 10bit RGB format removed from VLV
> >>>>>>>>>> formats by mistake. Fixing that in this version.
> >>>>>>>>>> Removed 10bit RGB formats added previously with NV12 series
> >> for
> >>>>>> SKL.
> >>>>>>>>>> v6: Addressed review comments by Ville Restricting the NV12
> >>>>>>>>>> to BXT and PIPE A and B
> >>>>>>>>>>
> >>>>>>>>>> v7: Rebased (me)
> >>>>>>>>>>
> >>>>>>>>>> v8: Rebased (me)
> >>>>>>>>>> Restricting NV12 changes to BXT and KBL Restricting NV12
> >>>>>>>>>> changes for plane 0 (overlay)
> >>>>>>>>>>
> >>>>>>>>>> v9: Rebased (me)
> >>>>>>>>>>
> >>>>>>>>>> v10: Addressed review comments from Maarten.
> >>>>>>>>>> Adding NV12 to skl_plane_formats itself.
> >>>>>>>>>>
> >>>>>>>>>> v11: Addressed review comments from Shashank Sharma
> >>>>>>>>>>
> >>>>>>>>>> v12: Addressed review comments from Shashank Sharma Made
> >> the
> >>>>>>>>> condition
> >>>>>>>>>> in intel_sprite_plane_create simple and easy to read as
> >> suggested.
> >>>>>>>>>> v13: Adding reviewed by tag from Shashank Sharma Addressed
> >>>> review
> >>>>>>>>>> comments from Juha-Pekka Heikkila
> >>>>>>>>>> "NV12 not to be supported by SKL"
> >>>>>>>>>>
> >>>>>>>>>> v14: Addressed review comments from Ville Added
> >>>>>> skl_planar_formats
> >>>>>>>>>> to include NV12 and a check skl_plane_has_planar in sprite
> >>>>>>>>>> create Added
> >>>>>>>>>> NV12 format to skl_mod_supported. These were review
> >> comments
> >>>>>>> from
> >>>>>>>>>> Kristian Høgsberg <hoegsberg@xxxxxxxxx>
> >>>>>>>>>>
> >>>>>>>>>> v15: Added reviewed by from Juha-Pekka Heikkila
> >>>>>>>>>>
> >>>>>>>>>> v16: Rebased the series
> >>>>>>>>>>
> >>>>>>>>>> v17: Added all tiling under mod supported for NV12 Credits to
> >>>>>>>>>> Megha Aggarwal
> >>>>>>>>>>
> >>>>>>>>>> v18: Added RB by Maarten and Kristian
> >>>>>>>>>>
> >>>>>>>>>> Credits-to: Megha Aggarwal <megha.aggarwal@xxxxxxxxx>
> >>>>>>>>>> Credits-to: Kristian Høgsberg <hoegsberg@xxxxxxxxx>
> >>>>>>>>>> Reviewed-by: Kristian Høgsberg <hoegsberg@xxxxxxxxx>
> >>>>>>>>>> Reviewed-by: Maarten Lankhorst
> >>>>>> <maarten.lankhorst@xxxxxxxxxxxxxxx>
> >>>>>>>>>> Tested-by: Clinton Taylor <clinton.a.taylor@xxxxxxxxx>
> >>>>>>>>>> Reviewed-by: Juha-Pekka Heikkila
> >> <juhapekka.heikkila@xxxxxxxxx>
> >>>>>>>>>> Reviewed-by: Shashank Sharma <shashank.sharma@xxxxxxxxx>
> >>>>>>>>>> Reviewed-by: Clinton Taylor <clinton.a.taylor@xxxxxxxxx>
> >>>>>>>>>> Signed-off-by: Chandra Konduru <chandra.konduru@xxxxxxxxx>
> >>>>>>>>>> Signed-off-by: Nabendu Maiti
> <nabendu.bikash.maiti@xxxxxxxxx>
> >>>>>>>>>> Signed-off-by: Vidya Srinivas <vidya.srinivas@xxxxxxxxx>
> >>>>>>>>>> ---
> >>>>>>>>>>  drivers/gpu/drm/i915/intel_sprite.c | 29
> >>>>>>>>>> +++++++++++++++++++++++++++--
> >>>>>>>>>>  1 file changed, 27 insertions(+), 2 deletions(-)
> >>>>>>>>>>
> >>>>>>>>>> diff --git a/drivers/gpu/drm/i915/intel_sprite.c
> >>>>>>>>>> b/drivers/gpu/drm/i915/intel_sprite.c
> >>>>>>>>>> index c73553a..cdcae9e 100644
> >>>>>>>>>> --- a/drivers/gpu/drm/i915/intel_sprite.c
> >>>>>>>>>> +++ b/drivers/gpu/drm/i915/intel_sprite.c
> >>>>>>>>>> @@ -1180,6 +1180,19 @@ static uint32_t skl_plane_formats[]
> =
> >> {
> >>>>>>>>>>  	DRM_FORMAT_VYUY,
> >>>>>>>>>>  };
> >>>>>>>>>>
> >>>>>>>>>> +static uint32_t skl_planar_formats[] = {
> >>>>>>>>>> +	DRM_FORMAT_RGB565,
> >>>>>>>>>> +	DRM_FORMAT_ABGR8888,
> >>>>>>>>>> +	DRM_FORMAT_ARGB8888,
> >>>>>>>>>> +	DRM_FORMAT_XBGR8888,
> >>>>>>>>>> +	DRM_FORMAT_XRGB8888,
> >>>>>>>>>> +	DRM_FORMAT_YUYV,
> >>>>>>>>>> +	DRM_FORMAT_YVYU,
> >>>>>>>>>> +	DRM_FORMAT_UYVY,
> >>>>>>>>>> +	DRM_FORMAT_VYUY,
> >>>>>>>>>> +	DRM_FORMAT_NV12,
> >>>>>>>>>> +};
> >>>>>>>>>> +
> >>>>>>>>>>  static const uint64_t skl_plane_format_modifiers_noccs[] = {
> >>>>>>>>>>  	I915_FORMAT_MOD_Yf_TILED,
> >>>>>>>>>>  	I915_FORMAT_MOD_Y_TILED,
> >>>>>>>>>> @@ -1277,6 +1290,12 @@ static bool
> >> skl_mod_supported(uint32_t
> >>>>>>>>> format, uint64_t modifier)
> >>>>>>>>>>  		if (modifier == I915_FORMAT_MOD_Yf_TILED)
> >>>>>>>>>>  			return true;
> >>>>>>>>>>  		/* fall through */
> >>>>>>>>>> +	case DRM_FORMAT_NV12:
> >>>>>>>>>> +		if (modifier == DRM_FORMAT_MOD_LINEAR ||
> >>>>>>>>>> +		    modifier == I915_FORMAT_MOD_X_TILED ||
> >>>>>>>>>> +		    modifier == I915_FORMAT_MOD_Y_TILED ||
> >>>>>>>>>> +		    modifier == I915_FORMAT_MOD_Yf_TILED)
> >>>>>>>>>> +			return true;
> >>>>>>>>> On patch 5 and 6: this is a tad overkill, just put it below
> >>>>>>>>> DRM_FORMAT_VYUY and let it fall through. It's not different
> >>>>>>>>> from the other formats. :) Otherwise looks good, I'll wait
> >>>>>>>>> until the changes from drm-misc- next are merged into
> >>>>>>>>> drm-intel-next-queued then this series can be applied with the
> >> minor fixup.
> >>>>>>>> Sure, thank you. I'll make the change. I did this to fix a
> >>>>>>>> review comment - which said all modifiers aren’t Covered for
> >>>>>>>> NV12 - when we
> >>>>>>> earlier had it under VYUV. Would that be still okay?
> >>>>>>> Seems only CCS isn't covered, so putting it there should be fine.
> >>>>>>> :)
> >>>>>> Oh okay - sure thank you. Will make the change and float the series.
> >>>>> Sorry to ask - under VYUV only Yf_TILED returns true. Don’t we
> >>>>> need to add the other modifiers like MOD_LINEAR, MOD_X_TILED and
> >>>> MOD_Y_TILED?
> >>>>>> Regards
> >>>>>> Vidya
> >>>> This is a C switch, unless there is a break it will continue, so it
> >>>> works as intended. :)
> >>>>
> >>>> For example format UYVY if modifier == Yf_TILED_CCS, it will ignore
> >>>> all the lines with case and default, and continue to the end of the
> >>>> switch statement, or until it hits a 'break' so the below:
> >>> I am so sorry, I did not notice there was no break :( Got confused.
> >>> Thank
> >> you.
> >> Yeah, in general that's what the 'fall through' comment is for, to
> >> make it clear that the lack of break is intentional and not a bug. :)
> > Oh okay, thank you so much. I did not know about that. I have made the
> > change and refloated the series. Kindly have a check.
> > https://patchwork.freedesktop.org/series/41674/
> > Rev 5.
> >
> > Regards
> > Vidya
> 
> Ack, looking good.
> 
> Now we only have to wait for the drm-misc-next backmerge, then I will
> commit this.

:) Sure thank you :)

> 
> ~Maarten

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