Re: [PATCH] drm/amd/display: Use DRM_DEBUG_DP

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On Mon, Mar 22, 2021 at 8:31 PM Luben Tuikov <luben.tuikov@xxxxxxx> wrote:
>
> Convert IRQ-based prints from DRM_DEBUG_DRIVER to
> DRM_DEBUG_DP, as the latter is not used in drm/amd
> prior to this patch and since IRQ-based prints
> drown out the rest of the driver's
> DRM_DEBUG_DRIVER messages.
>
> Cc: Harry Wentland <Harry.Wentland@xxxxxxx>
> Cc: Alex Deucher <alexander.deucher@xxxxxxx>
> Signed-off-by: Luben Tuikov <luben.tuikov@xxxxxxx>
> ---
>  .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 67 +++++++++----------
>  1 file changed, 33 insertions(+), 34 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 f455fc3aa561..aabaa652f6dc 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -449,9 +449,9 @@ static void dm_pflip_high_irq(void *interrupt_params)
>         amdgpu_crtc->pflip_status = AMDGPU_FLIP_NONE;
>         spin_unlock_irqrestore(&adev_to_drm(adev)->event_lock, flags);
>
> -       DRM_DEBUG_DRIVER("crtc:%d[%p], pflip_stat:AMDGPU_FLIP_NONE, vrr[%d]-fp %d\n",
> -                        amdgpu_crtc->crtc_id, amdgpu_crtc,
> -                        vrr_active, (int) !e);
> +       DRM_DEBUG_DP("crtc:%d[%p], pflip_stat:AMDGPU_FLIP_NONE, vrr[%d]-fp %d\n",

Should probably be _KMS or _ATOMIC since this is not displayport specific.

> +                    amdgpu_crtc->crtc_id, amdgpu_crtc,
> +                    vrr_active, (int) !e);
>  }
>
>  static void dm_vupdate_high_irq(void *interrupt_params)
> @@ -993,8 +993,7 @@ static void event_mall_stutter(struct work_struct *work)
>         dc_allow_idle_optimizations(
>                 dm->dc, dm->active_vblank_irq_count == 0);
>
> -       DRM_DEBUG_DRIVER("Allow idle optimizations (MALL): %d\n", dm->active_vblank_irq_count == 0);
> -
> +       DRM_DEBUG_DP("Allow idle optimizations (MALL): %d\n", dm->active_vblank_irq_count == 0);

Maybe _VBL or _KMS or _ATOMIC?

>
>         mutex_unlock(&dm->dc_lock);
>  }
> @@ -1810,8 +1809,8 @@ static void dm_gpureset_toggle_interrupts(struct amdgpu_device *adev,
>                 if (acrtc && state->stream_status[i].plane_count != 0) {
>                         irq_source = IRQ_TYPE_PFLIP + acrtc->otg_inst;
>                         rc = dc_interrupt_set(adev->dm.dc, irq_source, enable) ? 0 : -EBUSY;
> -                       DRM_DEBUG("crtc %d - vupdate irq %sabling: r=%d\n",
> -                                 acrtc->crtc_id, enable ? "en" : "dis", rc);
> +                       DRM_DEBUG_DP("crtc %d - vupdate irq %sabling: r=%d\n",
> +                                    acrtc->crtc_id, enable ? "en" : "dis", rc);

I think this should be _VBL.

>                         if (rc)
>                                 DRM_WARN("Failed to %s pflip interrupts\n",
>                                          enable ? "enable" : "disable");
> @@ -4966,8 +4965,8 @@ static void update_stream_scaling_settings(const struct drm_display_mode *mode,
>         stream->src = src;
>         stream->dst = dst;
>
> -       DRM_DEBUG_DRIVER("Destination Rectangle x:%d  y:%d  width:%d  height:%d\n",
> -                       dst.x, dst.y, dst.width, dst.height);
> +       DRM_DEBUG_DP("Destination Rectangle x:%d  y:%d  width:%d  height:%d\n",
> +                    dst.x, dst.y, dst.width, dst.height);

Should probably be _KMS or _ATOMIC since this is not displayport specific.

>
>  }
>
> @@ -5710,8 +5709,8 @@ static inline int dm_set_vupdate_irq(struct drm_crtc *crtc, bool enable)
>
>         rc = dc_interrupt_set(adev->dm.dc, irq_source, enable) ? 0 : -EBUSY;
>
> -       DRM_DEBUG_DRIVER("crtc %d - vupdate irq %sabling: r=%d\n",
> -                        acrtc->crtc_id, enable ? "en" : "dis", rc);
> +       DRM_DEBUG_DP("crtc %d - vupdate irq %sabling: r=%d\n",
> +                    acrtc->crtc_id, enable ? "en" : "dis", rc);

Should probably be _VBL.

>         return rc;
>  }
>
> @@ -6664,7 +6663,7 @@ static int dm_plane_helper_prepare_fb(struct drm_plane *plane,
>         int r;
>
>         if (!new_state->fb) {
> -               DRM_DEBUG_DRIVER("No FB bound\n");
> +               DRM_DEBUG_DP("No FB bound\n");

Should probably be _KMS or _ATOMIC since this is not displayport specific.

>                 return 0;
>         }
>
> @@ -7896,11 +7895,11 @@ static void handle_cursor_update(struct drm_plane *plane,
>         if (!plane->state->fb && !old_plane_state->fb)
>                 return;
>
> -       DRM_DEBUG_DRIVER("%s: crtc_id=%d with size %d to %d\n",
> -                        __func__,
> -                        amdgpu_crtc->crtc_id,
> -                        plane->state->crtc_w,
> -                        plane->state->crtc_h);
> +       DRM_DEBUG_DP("%s: crtc_id=%d with size %d to %d\n",
> +                    __func__,
> +                    amdgpu_crtc->crtc_id,
> +                    plane->state->crtc_w,
> +                    plane->state->crtc_h);

Should probably be _KMS or _ATOMIC since this is not displayport specific.

>
>         ret = get_cursor_position(plane, crtc, &position);
>         if (ret)
> @@ -7958,8 +7957,8 @@ static void prepare_flip_isr(struct amdgpu_crtc *acrtc)
>         /* Mark this event as consumed */
>         acrtc->base.state->event = NULL;
>
> -       DRM_DEBUG_DRIVER("crtc:%d, pflip_stat:AMDGPU_FLIP_SUBMITTED\n",
> -                                                acrtc->crtc_id);
> +       DRM_DEBUG_DP("crtc:%d, pflip_stat:AMDGPU_FLIP_SUBMITTED\n",
> +                    acrtc->crtc_id);

Should probably be _KMS or _ATOMIC since this is not displayport specific.

>  }
>
>  static void update_freesync_state_on_stream(
> @@ -8265,9 +8264,9 @@ static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
>                         &bundle->flip_addrs[planes_count].address,
>                         afb->tmz_surface, false);
>
> -               DRM_DEBUG_DRIVER("plane: id=%d dcc_en=%d\n",
> -                                new_plane_state->plane->index,
> -                                bundle->plane_infos[planes_count].dcc.enable);
> +               DRM_DEBUG_DP("plane: id=%d dcc_en=%d\n",
> +                            new_plane_state->plane->index,
> +                            bundle->plane_infos[planes_count].dcc.enable);

Should probably be _ATOMIC.

>
>                 bundle->surface_updates[planes_count].plane_info =
>                         &bundle->plane_infos[planes_count];
> @@ -8299,10 +8298,10 @@ static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
>                                 dc_plane,
>                                 bundle->flip_addrs[planes_count].flip_timestamp_in_us);
>
> -               DRM_DEBUG_DRIVER("%s Flipping to hi: 0x%x, low: 0x%x\n",
> -                                __func__,
> -                                bundle->flip_addrs[planes_count].address.grph.addr.high_part,
> -                                bundle->flip_addrs[planes_count].address.grph.addr.low_part);
> +               DRM_DEBUG_DP("%s Flipping to hi: 0x%x, low: 0x%x\n",
> +                            __func__,
> +                            bundle->flip_addrs[planes_count].address.grph.addr.high_part,
> +                            bundle->flip_addrs[planes_count].address.grph.addr.low_part);
>

Same here.

>                 planes_count += 1;
>
> @@ -8621,7 +8620,7 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
>                 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
>                 dm_old_crtc_state = to_dm_crtc_state(old_crtc_state);
>
> -               DRM_DEBUG_DRIVER(
> +               DRM_DEBUG_DP(

And here.

>                         "amdgpu_crtc id:%d crtc_state_flags: enable:%d, active:%d, "
>                         "planes_changed:%d, mode_changed:%d,active_changed:%d,"
>                         "connectors_changed:%d\n",
> @@ -8655,7 +8654,7 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
>
>                 if (modeset_required(new_crtc_state, dm_new_crtc_state->stream, dm_old_crtc_state->stream)) {
>
> -                       DRM_DEBUG_DRIVER("Atomic commit: SET crtc id %d: [%p]\n", acrtc->crtc_id, acrtc);
> +                       DRM_DEBUG_DP("Atomic commit: SET crtc id %d: [%p]\n", acrtc->crtc_id, acrtc);
>

And here.

>                         if (!dm_new_crtc_state->stream) {
>                                 /*
> @@ -8688,7 +8687,7 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
>                         crtc->hwmode = new_crtc_state->mode;
>                         mode_set_reset_required = true;
>                 } else if (modereset_required(new_crtc_state)) {
> -                       DRM_DEBUG_DRIVER("Atomic commit: RESET. crtc id %d:[%p]\n", acrtc->crtc_id, acrtc);
> +                       DRM_DEBUG_DP("Atomic commit: RESET. crtc id %d:[%p]\n", acrtc->crtc_id, acrtc);

And here.

>                         /* i.e. reset mode */
>                         if (dm_old_crtc_state->stream)
>                                 remove_stream(adev, acrtc, dm_old_crtc_state->stream);
> @@ -9298,7 +9297,7 @@ static int dm_update_crtc_state(struct amdgpu_display_manager *dm,
>         if (!drm_atomic_crtc_needs_modeset(new_crtc_state))
>                 goto skip_modeset;
>
> -       DRM_DEBUG_DRIVER(
> +       DRM_DEBUG_DP(

Should probably be _KMS or _ATOMIC since this is not displayport specific.

>                 "amdgpu_crtc id:%d crtc_state_flags: enable:%d, active:%d, "
>                 "planes_changed:%d, mode_changed:%d,active_changed:%d,"
>                 "connectors_changed:%d\n",
> @@ -9382,8 +9381,8 @@ static int dm_update_crtc_state(struct amdgpu_display_manager *dm,
>
>                         dc_stream_retain(new_stream);
>
> -                       DRM_DEBUG_DRIVER("Enabling DRM crtc: %d\n",
> -                                               crtc->base.id);
> +                       DRM_DEBUG_DP("Enabling DRM crtc: %d\n",
> +                                    crtc->base.id);
>

Same here.

>                         if (dc_add_stream_to_ctx(
>                                         dm->dc,
> @@ -9728,8 +9727,8 @@ static int dm_update_plane_state(struct dc *dc,
>                 if (!dc_new_plane_state)
>                         return -ENOMEM;
>
> -               DRM_DEBUG_DRIVER("Enabling DRM plane: %d on DRM crtc %d\n",
> -                               plane->base.id, new_plane_crtc->base.id);
> +               DRM_DEBUG_DP("Enabling DRM plane: %d on DRM crtc %d\n",
> +                            plane->base.id, new_plane_crtc->base.id);
>

And here.

>                 ret = fill_dc_plane_attributes(
>                         drm_to_adev(new_plane_crtc->dev),
> --
> 2.31.0.rc2
>
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