On 2/15/2024 12:45 AM, Dmitry Baryshkov wrote:
On Wed, 14 Feb 2024 at 20:04, Paloma Arellano <quic_parellan@xxxxxxxxxxx> wrote:Adjust the encoder format programming in the case of video mode for DP to accommodate CDM related changes. Changes in v2: - Move timing engine programming to a separate patch from this one - Move update_pending_flush_periph() invocation completely to this patch - Change the logic of dpu_encoder_get_drm_fmt() so that it only calls drm_mode_is_420_only() instead of doing additional unnecessary checks - Create new functions msm_dp_needs_periph_flush() and it's supporting function dpu_encoder_needs_periph_flush() to check if the mode is YUV420 and VSC SDP is enabled before doing a peripheral flush Signed-off-by: Paloma Arellano <quic_parellan@xxxxxxxxxxx> --- drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 35 +++++++++++++++++++ .../gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h | 13 +++++++ .../drm/msm/disp/dpu1/dpu_encoder_phys_vid.c | 19 ++++++++++ drivers/gpu/drm/msm/dp/dp_display.c | 18 ++++++++++ drivers/gpu/drm/msm/msm_drv.h | 17 ++++++++- 5 files changed, 101 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 7e7796561009a..6280c6be6dca9 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c @@ -222,6 +222,41 @@ static u32 dither_matrix[DITHER_MATRIX_SZ] = { 15, 7, 13, 5, 3, 11, 1, 9, 12, 4, 14, 6, 0, 8, 2, 10 }; +u32 dpu_encoder_get_drm_fmt(struct dpu_encoder_phys *phys_enc) +{ + struct drm_encoder *drm_enc; + struct dpu_encoder_virt *dpu_enc; + struct drm_display_info *info; + struct drm_display_mode *mode; + + drm_enc = phys_enc->parent; + dpu_enc = to_dpu_encoder_virt(drm_enc); + info = &dpu_enc->connector->display_info; + mode = &phys_enc->cached_mode; + + if (drm_mode_is_420_only(info, mode)) + return DRM_FORMAT_YUV420; + + return DRM_FORMAT_RGB888; +} + +bool dpu_encoder_needs_periph_flush(struct dpu_encoder_phys *phys_enc) +{ + struct drm_encoder *drm_enc; + struct dpu_encoder_virt *dpu_enc; + struct msm_display_info *disp_info; + struct msm_drm_private *priv; + struct drm_display_mode *mode; + + drm_enc = phys_enc->parent; + dpu_enc = to_dpu_encoder_virt(drm_enc); + disp_info = &dpu_enc->disp_info; + priv = drm_enc->dev->dev_private; + mode = &phys_enc->cached_mode; + + return phys_enc->hw_intf->cap->type == INTF_DP && phys_enc->hw_cdm && + msm_dp_needs_periph_flush(priv->dp[disp_info->h_tile_instance[0]], mode); +} bool dpu_encoder_is_widebus_enabled(const struct drm_encoder *drm_enc) { diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h index f43d57d9c74e1..211a3d90eb690 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h @@ -341,6 +341,19 @@ static inline enum dpu_3d_blend_mode dpu_encoder_helper_get_3d_blend_mode( */ unsigned int dpu_encoder_helper_get_dsc(struct dpu_encoder_phys *phys_enc); +/** + * dpu_encoder_get_drm_fmt - return DRM fourcc format + * @phys_enc: Pointer to physical encoder structure + */ +u32 dpu_encoder_get_drm_fmt(struct dpu_encoder_phys *phys_enc); + +/** + * dpu_encoder_needs_periph_flush - return true if physical encoder requires + * peripheral flush + * @phys_enc: Pointer to physical encoder structure + */ +bool dpu_encoder_needs_periph_flush(struct dpu_encoder_phys *phys_enc); + /** * dpu_encoder_helper_split_config - split display configuration helper function * This helper function may be used by physical encoders to configure diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c index f02411b062c4c..e29bc4bd39208 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c @@ -415,8 +415,15 @@ static int dpu_encoder_phys_vid_control_vblank_irq( static void dpu_encoder_phys_vid_enable(struct dpu_encoder_phys *phys_enc) { struct dpu_hw_ctl *ctl; + struct dpu_hw_cdm *hw_cdm; + const struct dpu_format *fmt = NULL; + u32 fmt_fourcc = DRM_FORMAT_RGB888; ctl = phys_enc->hw_ctl; + hw_cdm = phys_enc->hw_cdm; + if (hw_cdm)I thought that Abhinav proposed to drop the if(hw_cdm) condition here. LGTM otherwise.
Yes I did. This needs to be fixed in v4.
+ fmt_fourcc = dpu_encoder_get_drm_fmt(phys_enc); + fmt = dpu_get_dpu_format(fmt_fourcc); DPU_DEBUG_VIDENC(phys_enc, "\n"); @@ -425,6 +432,8 @@ static void dpu_encoder_phys_vid_enable(struct dpu_encoder_phys *phys_enc) dpu_encoder_helper_split_config(phys_enc, phys_enc->hw_intf->idx); + dpu_encoder_helper_phys_setup_cdm(phys_enc, fmt, CDM_CDWN_OUTPUT_HDMI); + dpu_encoder_phys_vid_setup_timing_engine(phys_enc); /* @@ -440,6 +449,16 @@ static void dpu_encoder_phys_vid_enable(struct dpu_encoder_phys *phys_enc) if (ctl->ops.update_pending_flush_merge_3d && phys_enc->hw_pp->merge_3d) ctl->ops.update_pending_flush_merge_3d(ctl, phys_enc->hw_pp->merge_3d->idx); + if (ctl->ops.update_pending_flush_cdm && phys_enc->hw_cdm) + ctl->ops.update_pending_flush_cdm(ctl, hw_cdm->idx); + + /* + * Peripheral flush must be updated whenever flushing SDP packets is needed. + * SDP packets are required for any YUV format (YUV420, YUV422, YUV444). + */ + if (ctl->ops.update_pending_flush_periph && dpu_encoder_needs_periph_flush(phys_enc)) + ctl->ops.update_pending_flush_periph(ctl, phys_enc->hw_intf->idx); + skip_flush: DPU_DEBUG_VIDENC(phys_enc, "update pending flush ctl %d intf %d\n", diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c index 4b04388719363..ebcc76ef1d590 100644 --- a/drivers/gpu/drm/msm/dp/dp_display.c +++ b/drivers/gpu/drm/msm/dp/dp_display.c @@ -1397,6 +1397,24 @@ void __exit msm_dp_unregister(void) platform_driver_unregister(&dp_display_driver); } +bool msm_dp_is_yuv_420_enabled(const struct msm_dp *dp_display, + const struct drm_display_mode *mode) +{ + struct dp_display_private *dp; + const struct drm_display_info *info; + + dp = container_of(dp_display, struct dp_display_private, dp_display); + info = &dp_display->connector->display_info; + + return dp->panel->vsc_sdp_supported && drm_mode_is_420_only(info, mode); +} + +bool msm_dp_needs_periph_flush(const struct msm_dp *dp_display, + const struct drm_display_mode *mode) +{ + return msm_dp_is_yuv_420_enabled(dp_display, mode); +} + bool msm_dp_wide_bus_available(const struct msm_dp *dp_display) { struct dp_display_private *dp; diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h index 16a7cbc0b7dd8..b876ebd48effe 100644 --- a/drivers/gpu/drm/msm/msm_drv.h +++ b/drivers/gpu/drm/msm/msm_drv.h @@ -387,7 +387,10 @@ void __exit msm_dp_unregister(void); int msm_dp_modeset_init(struct msm_dp *dp_display, struct drm_device *dev, struct drm_encoder *encoder); void msm_dp_snapshot(struct msm_disp_state *disp_state, struct msm_dp *dp_display); - +bool msm_dp_is_yuv_420_enabled(const struct msm_dp *dp_display, + const struct drm_display_mode *mode); +bool msm_dp_needs_periph_flush(const struct msm_dp *dp_display, + const struct drm_display_mode *mode); bool msm_dp_wide_bus_available(const struct msm_dp *dp_display); #else @@ -409,6 +412,18 @@ static inline void msm_dp_snapshot(struct msm_disp_state *disp_state, struct msm { } +static inline bool msm_dp_is_yuv_420_enabled(const struct msm_dp *dp_display, + const struct drm_display_mode *mode) +{ + return false; +} + +static inline bool msm_dp_needs_periph_flush(const struct msm_dp *dp_display, + const struct drm_display_mode *mode) +{ + return false; +} + static inline bool msm_dp_wide_bus_available(const struct msm_dp *dp_display) { return false; -- 2.39.2
