Messages in this thread | | | Date | Mon, 11 Jul 2022 13:07:15 +0300 | Subject | Re: [PATCH v5 01/10] drm/msm/disp/dpu1: clear dpu_assign_crtc and get crtc from connector state instead of dpu_enc | From | Dmitry Baryshkov <> |
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On 11/07/2022 12:47, Vinod Polimera wrote: > Update crtc retrieval from dpu_enc to dpu_enc connector state, > since new links get set as part of the dpu enc virt mode set. > The dpu_enc->crtc cache is no more needed, hence cleaning it as > part of this change. > > Signed-off-by: Vinod Polimera <quic_vpolimer@quicinc.com> > --- > drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 4 ---- > drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 29 ++++++++++++++--------------- > drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h | 8 -------- > 3 files changed, 14 insertions(+), 27 deletions(-) > > diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c > index b56f777..f91e3d1 100644 > --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c > +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c > @@ -972,7 +972,6 @@ static void dpu_crtc_disable(struct drm_crtc *crtc, > */ > if (dpu_encoder_get_intf_mode(encoder) == INTF_MODE_VIDEO) > release_bandwidth = true; > - dpu_encoder_assign_crtc(encoder, NULL); > } > > /* wait for frame_event_done completion */ > @@ -1042,9 +1041,6 @@ static void dpu_crtc_enable(struct drm_crtc *crtc, > trace_dpu_crtc_enable(DRMID(crtc), true, dpu_crtc); > dpu_crtc->enabled = true; > > - drm_for_each_encoder_mask(encoder, crtc->dev, crtc->state->encoder_mask) > - dpu_encoder_assign_crtc(encoder, crtc); > - > /* Enable/restore vblank irq handling */ > drm_crtc_vblank_on(crtc); > } > diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c > index 52516eb..8fb3e15 100644 > --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c > +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c > @@ -1245,6 +1245,7 @@ static void dpu_encoder_vblank_callback(struct drm_encoder *drm_enc, > struct dpu_encoder_phys *phy_enc) > { > struct dpu_encoder_virt *dpu_enc = NULL; > + struct drm_crtc *crtc; > unsigned long lock_flags; > > if (!drm_enc || !phy_enc) > @@ -1253,9 +1254,14 @@ static void dpu_encoder_vblank_callback(struct drm_encoder *drm_enc, > DPU_ATRACE_BEGIN("encoder_vblank_callback"); > dpu_enc = to_dpu_encoder_virt(drm_enc); > > + if (!dpu_enc->connector || !dpu_enc->connector->state) > + return; > + > + crtc = dpu_enc->connector->state->crtc; > + > spin_lock_irqsave(&dpu_enc->enc_spinlock, lock_flags); > - if (dpu_enc->crtc) > - dpu_crtc_vblank_callback(dpu_enc->crtc); > + if (crtc) > + dpu_crtc_vblank_callback(crtc); > spin_unlock_irqrestore(&dpu_enc->enc_spinlock, lock_flags); > > atomic_inc(&phy_enc->vsync_cnt); > @@ -1280,29 +1286,22 @@ static void dpu_encoder_underrun_callback(struct drm_encoder *drm_enc, > DPU_ATRACE_END("encoder_underrun_callback"); > } > > -void dpu_encoder_assign_crtc(struct drm_encoder *drm_enc, struct drm_crtc *crtc) > -{ > - struct dpu_encoder_virt *dpu_enc = to_dpu_encoder_virt(drm_enc); > - unsigned long lock_flags; > - > - spin_lock_irqsave(&dpu_enc->enc_spinlock, lock_flags); > - /* crtc should always be cleared before re-assigning */ > - WARN_ON(crtc && dpu_enc->crtc); > - dpu_enc->crtc = crtc; > - spin_unlock_irqrestore(&dpu_enc->enc_spinlock, lock_flags); > -}
Please also remove the dpu_encoder_virt::crtc pointer.
> - > void dpu_encoder_toggle_vblank_for_crtc(struct drm_encoder *drm_enc, > struct drm_crtc *crtc, bool enable) > { > struct dpu_encoder_virt *dpu_enc = to_dpu_encoder_virt(drm_enc); > + struct drm_crtc *new_crtc; > unsigned long lock_flags; > int i; > > trace_dpu_enc_vblank_cb(DRMID(drm_enc), enable); > > + if (!dpu_enc->connector || !dpu_enc->connector->state) > + return; > + > + new_crtc = dpu_enc->connector->state->crtc; > spin_lock_irqsave(&dpu_enc->enc_spinlock, lock_flags); > - if (dpu_enc->crtc != crtc) { > + if (!new_crtc || crtc != crtc) {
Second condition is always false.
> spin_unlock_irqrestore(&dpu_enc->enc_spinlock, lock_flags); > return; > } > diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h > index 781d41c..edba815 100644 > --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h > +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h > @@ -39,14 +39,6 @@ struct msm_display_info { > }; > > /** > - * dpu_encoder_assign_crtc - Link the encoder to the crtc it's assigned to > - * @encoder: encoder pointer > - * @crtc: crtc pointer > - */ > -void dpu_encoder_assign_crtc(struct drm_encoder *encoder, > - struct drm_crtc *crtc); > - > -/** > * dpu_encoder_toggle_vblank_for_crtc - Toggles vblank interrupts on or off if > * the encoder is assigned to the given crtc > * @encoder: encoder pointer
-- With best wishes Dmitry
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