Re: [PATCHv3] drm/i915: Support Async Flip on Linear buffers

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> -----Original Message-----
> From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> Sent: Thursday, February 2, 2023 2:54 PM
> To: Murthy, Arun R <arun.r.murthy@xxxxxxxxx>
> Cc: intel-gfx@xxxxxxxxxxxxxxxxxxxxx; Syrjala, Ville <ville.syrjala@xxxxxxxxx>
> Subject: Re:  [PATCHv3] drm/i915: Support Async Flip on Linear
> buffers
> 
> On Thu, Feb 02, 2023 at 06:51:49AM +0000, Murthy, Arun R wrote:
> > Gentle Reminder!
> > The patch is pending since a long time.
> 
> Please review the igt changes here:
> https://patchwork.freedesktop.org/series/113525/
> then we can actually test this (and any other new modifier in the future).
> 
Done!
This patch is to add support for linear buffer in the driver and shouldn't conflict with the IGT patch series https://patchwork.freedesktop.org/series/113525/

Thanks and Regards,
Arun R Murthy
--------------------

> >
> > Thanks and Regards,
> > Arun R Murthy
> > -------------------
> >
> > > -----Original Message-----
> > > From: Murthy, Arun R
> > > Sent: Monday, January 23, 2023 12:14 PM
> > > To: 'Ville Syrjälä' <ville.syrjala@xxxxxxxxxxxxxxx>
> > > Cc: 'intel-gfx@xxxxxxxxxxxxxxxxxxxxx'
> > > <intel-gfx@xxxxxxxxxxxxxxxxxxxxx>;
> > > Syrjala, Ville <ville.syrjala@xxxxxxxxx>
> > > Subject: RE:  [PATCHv3] drm/i915: Support Async Flip on
> > > Linear buffers
> > >
> > > Any review comments on this. Gentle Reminder!
> > >
> > > Thanks and Regards,
> > > Arun R Murthy
> > > --------------------
> > >
> > > > -----Original Message-----
> > > > From: Murthy, Arun R
> > > > Sent: Tuesday, January 17, 2023 2:09 PM
> > > > To: 'Ville Syrjälä' <ville.syrjala@xxxxxxxxxxxxxxx>
> > > > Cc: 'intel-gfx@xxxxxxxxxxxxxxxxxxxxx'
> > > > <intel-gfx@xxxxxxxxxxxxxxxxxxxxx>;
> > > > Syrjala, Ville <ville.syrjala@xxxxxxxxx>
> > > > Subject: RE:  [PATCHv3] drm/i915: Support Async Flip on
> > > > Linear buffers
> > > >
> > > > Gentle Reminder!
> > > >
> > > > Thanks and Regards,
> > > > Arun R Murthy
> > > > -------------------
> > > >
> > > > > -----Original Message-----
> > > > > From: Murthy, Arun R
> > > > > Sent: Friday, January 13, 2023 12:57 PM
> > > > > To: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> > > > > Cc: intel-gfx@xxxxxxxxxxxxxxxxxxxxx; Syrjala, Ville
> > > > > <ville.syrjala@xxxxxxxxx>
> > > > > Subject: RE:  [PATCHv3] drm/i915: Support Async Flip
> > > > > on Linear buffers
> > > > >
> > > > > > On Fri, Oct 28, 2022 at 03:23:02AM +0000, Murthy, Arun R wrote:
> > > > > > > Gentle Reminder!
> > > > > >
> > > > > > Is the igt stuff merged, and did this pass the test?
> > > > > >
> > > > > With IGT alone the tests will fail without the kernel patch.
> > > > > The
> > > > > tests(https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_112722v2/s
> > > > > hard
> > > > > s-
> > > > > all.html?testfilter=kms_async_flips) are passing with IGT and
> > > > > kernel
> > > patch.
> > > > >
> > > > > Thanks and Regards,
> > > > > Arun R Murthy
> > > > > --------------------
> > > > > > >
> > > > > > > > -----Original Message-----
> > > > > > > > From: Murthy, Arun R
> > > > > > > > Sent: Monday, October 10, 2022 1:24 PM
> > > > > > > > To: 'intel-gfx@xxxxxxxxxxxxxxxxxxxxx'
> > > > > > > > <intel-gfx@xxxxxxxxxxxxxxxxxxxxx>
> > > > > > > > Cc: Syrjala, Ville <ville.syrjala@xxxxxxxxx>
> > > > > > > > Subject: RE: [PATCHv3] drm/i915: Support Async Flip on
> > > > > > > > Linear buffers
> > > > > > > >
> > > > > > > > Ville,
> > > > > > > > 	Gentle reminder!
> > > > > > > >
> > > > > > > > Thanks and Regards,
> > > > > > > > Arun R Murthy
> > > > > > > > --------------------
> > > > > > > >
> > > > > > > > > -----Original Message-----
> > > > > > > > > From: Murthy, Arun R
> > > > > > > > > Sent: Monday, September 19, 2022 10:38 AM
> > > > > > > > > To: 'intel-gfx@xxxxxxxxxxxxxxxxxxxxx'
> > > > > > > > > <intel-gfx@xxxxxxxxxxxxxxxxxxxxx>
> > > > > > > > > Cc: Syrjala, Ville <ville.syrjala@xxxxxxxxx>
> > > > > > > > > Subject: RE: [PATCHv3] drm/i915: Support Async Flip on
> > > > > > > > > Linear buffers
> > > > > > > > >
> > > > > > > > > If no comments, can anyone merge the patch!
> > > > > > > > >
> > > > > > > > > Thanks and Regards,
> > > > > > > > > Arun R Murthy
> > > > > > > > > --------------------
> > > > > > > > >
> > > > > > > > > > -----Original Message-----
> > > > > > > > > > From: Murthy, Arun R
> > > > > > > > > > Sent: Wednesday, September 14, 2022 4:21 PM
> > > > > > > > > > To: Murthy, Arun R <arun.r.murthy@xxxxxxxxx>; intel-
> > > > > > > > > > gfx@xxxxxxxxxxxxxxxxxxxxx
> > > > > > > > > > Cc: Syrjala, Ville <ville.syrjala@xxxxxxxxx>
> > > > > > > > > > Subject: RE: [PATCHv3] drm/i915: Support Async Flip on
> > > > > > > > > > Linear buffers
> > > > > > > > > >
> > > > > > > > > > Gentle Reminder!
> > > > > > > > > > Any comments?
> > > > > > > > > >
> > > > > > > > > > Thanks and Regards,
> > > > > > > > > > Arun R Murthy
> > > > > > > > > > --------------------
> > > > > > > > > >
> > > > > > > > > > > -----Original Message-----
> > > > > > > > > > > From: Intel-gfx
> > > > > > > > > > > <intel-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx>
> > > > > > > > > > > On Behalf Of Murthy, Arun R
> > > > > > > > > > > Sent: Friday, September 9, 2022 9:17 AM
> > > > > > > > > > > To: intel-gfx@xxxxxxxxxxxxxxxxxxxxx
> > > > > > > > > > > Cc: Syrjala, Ville <ville.syrjala@xxxxxxxxx>
> > > > > > > > > > > Subject: Re:  [PATCHv3] drm/i915: Support
> > > > > > > > > > > Async Flip on Linear buffers
> > > > > > > > > > >
> > > > > > > > > > > Gentle Reminder!
> > > > > > > > > > >
> > > > > > > > > > > > -----Original Message-----
> > > > > > > > > > > > From: Murthy, Arun R <arun.r.murthy@xxxxxxxxx>
> > > > > > > > > > > > Sent: Tuesday, September 6, 2022 9:18 AM
> > > > > > > > > > > > To: intel-gfx@xxxxxxxxxxxxxxxxxxxxx
> > > > > > > > > > > > Cc: ville.syrjala@xxxxxxxxxxxxxxx; Murthy, Arun R
> > > > > > > > > > > > <arun.r.murthy@xxxxxxxxx>
> > > > > > > > > > > > Subject: [PATCHv3] drm/i915: Support Async Flip on
> > > > > > > > > > > > Linear buffers
> > > > > > > > > > > >
> > > > > > > > > > > > Starting from Gen12 Async Flip is supported on linear
> buffers.
> > > > > > > > > > > > This patch enables support for async on linear buffer.
> > > > > > > > > > > >
> > > > > > > > > > > > UseCase: In Hybrid graphics, for hardware
> > > > > > > > > > > > unsupported pixel formats it will be converted to
> > > > > > > > > > > > linear memory and then
> > > > > composed.
> > > > > > > > > > > >
> > > > > > > > > > > > v2: Added use case
> > > > > > > > > > > > v3: Added FIXME for ICL indicating the
> > > > > > > > > > > > restrictions
> > > > > > > > > > > >
> > > > > > > > > > > > Signed-off-by: Arun R Murthy
> > > > > > > > > > > > <arun.r.murthy@xxxxxxxxx>
> > > > > > > > > > > > ---
> > > > > > > > > > > >  drivers/gpu/drm/i915/display/intel_display.c | 14
> > > > > > > > > > > > ++++++++++++++
> > > > > > > > > > > >  1 file changed, 14 insertions(+)
> > > > > > > > > > > >
> > > > > > > > > > > > diff --git
> > > > > > > > > > > > a/drivers/gpu/drm/i915/display/intel_display.c
> > > > > > > > > > > > b/drivers/gpu/drm/i915/display/intel_display.c
> > > > > > > > > > > > index be7cff722196..1880cfe70a7d 100644
> > > > > > > > > > > > --- a/drivers/gpu/drm/i915/display/intel_display.c
> > > > > > > > > > > > +++ b/drivers/gpu/drm/i915/display/intel_display.c
> > > > > > > > > > > > @@ -6610,6 +6610,20 @@ static int
> > > > > > > > > > > > intel_async_flip_check_hw(struct
> > > > > > > > > > > > intel_atomic_state *state, struct
> > > > > > in
> > > > > > > > > > > >  		 * this selectively if required.
> > > > > > > > > > > >  		 */
> > > > > > > > > > > >  		switch (new_plane_state->hw.fb->modifier) {
> > > > > > > > > > > > +		case DRM_FORMAT_MOD_LINEAR:
> > > > > > > > > > > > +			/*
> > > > > > > > > > > > +			 * FIXME: Async on Linear buffer is
> > > supported
> > > > > > > > on ICL
> > > > > > > > > > > > as
> > > > > > > > > > > > +			 * but with additional alignment and
> > > fbc
> > > > > > > > restrictions
> > > > > > > > > > > > +			 * need to be taken care of. These
> > > aren't
> > > > > > > > applicable
> > > > > > > > > > > > for
> > > > > > > > > > > > +			 * gen12+.
> > > > > > > > > > > > +			 */
> > > > > > > > > > > > +			if (DISPLAY_VER(i915) < 12) {
> > > > > > > > > > > > +				drm_dbg_kms(&i915->drm,
> > > > > > > > > > > > +					"[PLANE:%d:%s]
> > > Modifier
> > > > > > > > does not
> > > > > > > > > > > > support async flips\n",
> > > > > > > > > > > > +					plane->base.base.id,
> > > plane-
> > > > > > > > > > > > >base.name);
> > > > > > > > > > > > +				return -EINVAL;
> > > > > > > > > > > > +			}
> > > > > > > > > > > > +
> > > > > > > > > > > >  		case I915_FORMAT_MOD_X_TILED:
> > > > > > > > > > > >  		case I915_FORMAT_MOD_Y_TILED:
> > > > > > > > > > > >  		case I915_FORMAT_MOD_Yf_TILED:
> > > > > > > > > > > > --
> > > > > > > > > > > > 2.25.1
> > > > > >
> > > > > > --
> > > > > > Ville Syrjälä
> > > > > > Intel
> 
> --
> Ville Syrjälä
> Intel




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