| Message ID | 20241009-sm8650-v6-11-hmd-pocf-mdss-quad-upstream-21-v2-8-76d4f5d413bf@linaro.org |
|---|---|
| State | New |
| Headers | show |
| Series | drm/msm/dpu: Support quad pipe with dual-DSI | expand |
Dmitry Baryshkov <dmitry.baryshkov@linaro.org> 于2024年10月10日周四 21:12写道： > > On Wed, Oct 09, 2024 at 04:50:21PM GMT, Jun Nie wrote: > > Update mixer number info earlier so that the plane nopipe check > > can have the info to clip the plane. Otherwise, the first nonpipe > > check will have mixer number as 0 and plane is not checked. > > > > Signed-off-by: Jun Nie <jun.nie@linaro.org> > > --- > > drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 11 ++++++++++- > > 1 file changed, 10 insertions(+), 1 deletion(-) > > > > diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c > > index dfe282c607933..68655c8817bf8 100644 > > --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c > > +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c > > @@ -638,6 +638,7 @@ static int dpu_encoder_virt_atomic_check( > > struct dpu_global_state *global_state; > > struct drm_framebuffer *fb; > > struct drm_dsc_config *dsc; > > + struct dpu_crtc_state *cstate; > > int ret = 0; > > > > if (!drm_enc || !crtc_state || !conn_state) { > > @@ -662,6 +663,8 @@ static int dpu_encoder_virt_atomic_check( > > dsc = dpu_encoder_get_dsc_config(drm_enc); > > > > topology = dpu_encoder_get_topology(dpu_enc, dpu_kms, adj_mode, crtc_state, dsc); > > + cstate = to_dpu_crtc_state(crtc_state); > > + cstate->num_mixers = topology.num_lm; > > > > /* > > * Use CDM only for writeback or DP at the moment as other interfaces cannot handle it. > > @@ -1170,7 +1173,13 @@ static void dpu_encoder_virt_atomic_mode_set(struct drm_encoder *drm_enc, > > } > > > > cstate->num_dscs = num_dsc; > > - cstate->num_mixers = num_lm; > > + if (cstate->num_mixers != num_lm) { > > + if (!cstate->num_mixers) > > + DPU_ERROR_ENC(dpu_enc, > > + "mixer number %d is not as expected %d\n", > > + num_lm, cstate->num_mixers); > > + cstate->num_mixers = num_lm; > > + } > > Is it a possible case or just defensive coding? The value is initialized beforehand only in virtual plane case. So we still need this for non virtual plane case. > > > dpu_enc->connector = conn_state->connector; > > > > /* > > > > -- > > 2.34.1 > > > > -- > With best wishes > Dmitry
On Fri, 11 Oct 2024 at 09:30, Jun Nie <jun.nie@linaro.org> wrote: > > Dmitry Baryshkov <dmitry.baryshkov@linaro.org> 于2024年10月10日周四 21:12写道： > > > > On Wed, Oct 09, 2024 at 04:50:21PM GMT, Jun Nie wrote: > > > Update mixer number info earlier so that the plane nopipe check > > > can have the info to clip the plane. Otherwise, the first nonpipe > > > check will have mixer number as 0 and plane is not checked. > > > > > > Signed-off-by: Jun Nie <jun.nie@linaro.org> > > > --- > > > drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 11 ++++++++++- > > > 1 file changed, 10 insertions(+), 1 deletion(-) > > > > > > diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c > > > index dfe282c607933..68655c8817bf8 100644 > > > --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c > > > +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c > > > @@ -638,6 +638,7 @@ static int dpu_encoder_virt_atomic_check( > > > struct dpu_global_state *global_state; > > > struct drm_framebuffer *fb; > > > struct drm_dsc_config *dsc; > > > + struct dpu_crtc_state *cstate; > > > int ret = 0; > > > > > > if (!drm_enc || !crtc_state || !conn_state) { > > > @@ -662,6 +663,8 @@ static int dpu_encoder_virt_atomic_check( > > > dsc = dpu_encoder_get_dsc_config(drm_enc); > > > > > > topology = dpu_encoder_get_topology(dpu_enc, dpu_kms, adj_mode, crtc_state, dsc); > > > + cstate = to_dpu_crtc_state(crtc_state); > > > + cstate->num_mixers = topology.num_lm; > > > > > > /* > > > * Use CDM only for writeback or DP at the moment as other interfaces cannot handle it. > > > @@ -1170,7 +1173,13 @@ static void dpu_encoder_virt_atomic_mode_set(struct drm_encoder *drm_enc, > > > } > > > > > > cstate->num_dscs = num_dsc; > > > - cstate->num_mixers = num_lm; > > > + if (cstate->num_mixers != num_lm) { > > > + if (!cstate->num_mixers) > > > + DPU_ERROR_ENC(dpu_enc, > > > + "mixer number %d is not as expected %d\n", > > > + num_lm, cstate->num_mixers); > > > + cstate->num_mixers = num_lm; > > > + } > > > > Is it a possible case or just defensive coding? > > The value is initialized beforehand only in virtual plane case. So we > still need this > for non virtual plane case. It looks better if it's handled in the non-virtual code instead.
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c index dfe282c607933..68655c8817bf8 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c @@ -638,6 +638,7 @@ static int dpu_encoder_virt_atomic_check( struct dpu_global_state *global_state; struct drm_framebuffer *fb; struct drm_dsc_config *dsc; + struct dpu_crtc_state *cstate; int ret = 0; if (!drm_enc || !crtc_state || !conn_state) { @@ -662,6 +663,8 @@ static int dpu_encoder_virt_atomic_check( dsc = dpu_encoder_get_dsc_config(drm_enc); topology = dpu_encoder_get_topology(dpu_enc, dpu_kms, adj_mode, crtc_state, dsc); + cstate = to_dpu_crtc_state(crtc_state); + cstate->num_mixers = topology.num_lm; /* * Use CDM only for writeback or DP at the moment as other interfaces cannot handle it. @@ -1170,7 +1173,13 @@ static void dpu_encoder_virt_atomic_mode_set(struct drm_encoder *drm_enc, } cstate->num_dscs = num_dsc; - cstate->num_mixers = num_lm; + if (cstate->num_mixers != num_lm) { + if (!cstate->num_mixers) + DPU_ERROR_ENC(dpu_enc, + "mixer number %d is not as expected %d\n", + num_lm, cstate->num_mixers); + cstate->num_mixers = num_lm; + } dpu_enc->connector = conn_state->connector; /*
Update mixer number info earlier so that the plane nopipe check can have the info to clip the plane. Otherwise, the first nonpipe check will have mixer number as 0 and plane is not checked. Signed-off-by: Jun Nie <jun.nie@linaro.org> --- drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-)