Re: [PATCH] drm/amd/display: fix hw rotated modes when PSR-SU is enabled

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On Thu, Dec 7, 2023 at 10:10 AM Mario Limonciello
<mario.limonciello@xxxxxxx> wrote:
>
> On 12/6/2023 20:07, Kai-Heng Feng wrote:
> > On Thu, Dec 7, 2023 at 9:57 AM Mario Limonciello
> > <mario.limonciello@xxxxxxx> wrote:
> >>
> >> On 12/6/2023 19:23, Kai-Heng Feng wrote:
> >>> On Wed, Dec 6, 2023 at 4:29 AM Mario Limonciello
> >>> <mario.limonciello@xxxxxxx> wrote:
> >>>>
> >>>> On 12/5/2023 14:17, Hamza Mahfooz wrote:
> >>>>> We currently don't support dirty rectangles on hardware rotated modes.
> >>>>> So, if a user is using hardware rotated modes with PSR-SU enabled,
> >>>>> use PSR-SU FFU for all rotated planes (including cursor planes).
> >>>>>
> >>>>
> >>>> Here is the email for the original reporter to give an attribution tag.
> >>>>
> >>>> Reported-by: Kai-Heng Feng <kai.heng.feng@xxxxxxxxxxxxx>
> >>>
> >>> For this particular issue,
> >>> Tested-by: Kai-Heng Feng <kai.heng.feng@xxxxxxxxxxxxx>
> >>
> >> Can you confirm what kernel base you tested issue against?
> >>
> >> I ask because Bin Li (+CC) also tested it against 6.1 based LTS kernel
> >> but ran into problems.
> >
> > The patch was tested against ADSN.
> >
> >>
> >> I wonder if it's because of other dependency patches.  If that's the
> >> case it would be good to call them out in the Cc: @stable as
> >> dependencies so when Greg or Sasha backport this 6.1 doesn't get broken.
> >
> > Probably. I haven't really tested any older kernel series.
>
> Since you've got a good environment to test it and reproduce it would
> you mind double checking it against 6.7-rc, 6.5 and 6.1 trees?  If we
> don't have confidence it works on the older trees I think we'll need to
> drop the stable tag.

Not seeing issues here when the patch is applied against 6.5 and 6.1
(which needs to resolve a minor conflict).

I am not sure what happened for Bin's case.

Kai-Heng

> >
> > Kai-Heng
> >
> >>
> >> Bin,
> >>
> >> Could you run ./scripts/decode_stacktrace.sh on your kernel trace to
> >> give us a specific line number on the issue you hit?
> >>
> >> Thanks!
> >>>
> >>>>
> >>>>> Cc: stable@xxxxxxxxxxxxxxx
> >>>>> Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2952
> >>>>> Fixes: 30ebe41582d1 ("drm/amd/display: add FB_DAMAGE_CLIPS support")
> >>>>> Signed-off-by: Hamza Mahfooz <hamza.mahfooz@xxxxxxx>
> >>>>> ---
> >>>>>     drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c    |  4 ++++
> >>>>>     drivers/gpu/drm/amd/display/dc/dc_hw_types.h         |  1 +
> >>>>>     drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c    | 12 ++++++++++--
> >>>>>     .../gpu/drm/amd/display/dc/hwss/dcn10/dcn10_hwseq.c  |  3 ++-
> >>>>>     4 files changed, 17 insertions(+), 3 deletions(-)
> >>>>>
> >>>>> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> >>>>> index c146dc9cba92..79f8102d2601 100644
> >>>>> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> >>>>> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> >>>>> @@ -5208,6 +5208,7 @@ static void fill_dc_dirty_rects(struct drm_plane *plane,
> >>>>>         bool bb_changed;
> >>>>>         bool fb_changed;
> >>>>>         u32 i = 0;
> >>>>> +
> >>>>
> >>>> Looks like a spurious newline here.
> >>>>
> >>>>>         *dirty_regions_changed = false;
> >>>>>
> >>>>>         /*
> >>>>> @@ -5217,6 +5218,9 @@ static void fill_dc_dirty_rects(struct drm_plane *plane,
> >>>>>         if (plane->type == DRM_PLANE_TYPE_CURSOR)
> >>>>>                 return;
> >>>>>
> >>>>> +     if (new_plane_state->rotation != DRM_MODE_ROTATE_0)
> >>>>> +             goto ffu;
> >>>>> +
> >>>>
> >>>> I noticed that the original report was specifically on 180°.  Since
> >>>> you're also covering 90° and 270° with this check it sounds like it's
> >>>> actually problematic on those too?
> >>>
> >>> 90 & 270 are problematic too. But from what I observed the issue is
> >>> much more than just cursors.
> >>
> >> Got it; thanks.
> >>
> >>>
> >>> Kai-Heng
> >>>
> >>>>
> >>>>>         num_clips = drm_plane_get_damage_clips_count(new_plane_state);
> >>>>>         clips = drm_plane_get_damage_clips(new_plane_state);
> >>>>>
> >>>>> diff --git a/drivers/gpu/drm/amd/display/dc/dc_hw_types.h b/drivers/gpu/drm/amd/display/dc/dc_hw_types.h
> >>>>> index 9649934ea186..e2a3aa8812df 100644
> >>>>> --- a/drivers/gpu/drm/amd/display/dc/dc_hw_types.h
> >>>>> +++ b/drivers/gpu/drm/amd/display/dc/dc_hw_types.h
> >>>>> @@ -465,6 +465,7 @@ struct dc_cursor_mi_param {
> >>>>>         struct fixed31_32 v_scale_ratio;
> >>>>>         enum dc_rotation_angle rotation;
> >>>>>         bool mirror;
> >>>>> +     struct dc_stream_state *stream;
> >>>>>     };
> >>>>>
> >>>>>     /* IPP related types */
> >>>>> diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c
> >>>>> index 139cf31d2e45..89c3bf0fe0c9 100644
> >>>>> --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c
> >>>>> +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c
> >>>>> @@ -1077,8 +1077,16 @@ void hubp2_cursor_set_position(
> >>>>>         if (src_y_offset < 0)
> >>>>>                 src_y_offset = 0;
> >>>>>         /* Save necessary cursor info x, y position. w, h is saved in attribute func. */
> >>>>> -     hubp->cur_rect.x = src_x_offset + param->viewport.x;
> >>>>> -     hubp->cur_rect.y = src_y_offset + param->viewport.y;
> >>>>> +     if (param->stream->link->psr_settings.psr_version >= DC_PSR_VERSION_SU_1 &&
> >>>>> +         param->rotation != ROTATION_ANGLE_0) {
> >>>>
> >>>> Ditto on above about 90° and 270°.
> >>>>
> >>>>> +             hubp->cur_rect.x = 0;
> >>>>> +             hubp->cur_rect.y = 0;
> >>>>> +             hubp->cur_rect.w = param->stream->timing.h_addressable;
> >>>>> +             hubp->cur_rect.h = param->stream->timing.v_addressable;
> >>>>> +     } else {
> >>>>> +             hubp->cur_rect.x = src_x_offset + param->viewport.x;
> >>>>> +             hubp->cur_rect.y = src_y_offset + param->viewport.y;
> >>>>> +     }
> >>>>>     }
> >>>>>
> >>>>>     void hubp2_clk_cntl(struct hubp *hubp, bool enable)
> >>>>> diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn10/dcn10_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn10/dcn10_hwseq.c
> >>>>> index 2b8b8366538e..ce5613a76267 100644
> >>>>> --- a/drivers/gpu/drm/amd/display/dc/hwss/dcn10/dcn10_hwseq.c
> >>>>> +++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn10/dcn10_hwseq.c
> >>>>> @@ -3417,7 +3417,8 @@ void dcn10_set_cursor_position(struct pipe_ctx *pipe_ctx)
> >>>>>                 .h_scale_ratio = pipe_ctx->plane_res.scl_data.ratios.horz,
> >>>>>                 .v_scale_ratio = pipe_ctx->plane_res.scl_data.ratios.vert,
> >>>>>                 .rotation = pipe_ctx->plane_state->rotation,
> >>>>> -             .mirror = pipe_ctx->plane_state->horizontal_mirror
> >>>>> +             .mirror = pipe_ctx->plane_state->horizontal_mirror,
> >>>>> +             .stream = pipe_ctx->stream
> >>>>
> >>>> As a nit; I think it's worth leaving a harmless trailing ',' so that
> >>>> there is less ping pong in the future when adding new members to a struct.
> >>>>
> >>>>>         };
> >>>>>         bool pipe_split_on = false;
> >>>>>         bool odm_combine_on = (pipe_ctx->next_odm_pipe != NULL) ||
> >>>>
> >>>>
> >>
>




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