Hi, Yongqiang: Yongqiang Niu <yongqiang.niu@xxxxxxxxxxxx> 於 2021年7月12日 週一 下午2:42寫道： > > In cmdq mode, packet may be flushed before it is executed, so > the pending flag should be cleared after cmdq packet is done. I would like this patch to base on the series [1] because that series use the standard mailbox callback interface. [1] https://patchwork.kernel.org/project/linux-mediatek/list/?series=514369 Regards, Chun-Kuang. > > Signed-off-by: CK Hu <ck.hu@xxxxxxxxxxxx> > Signed-off-by: Yongqiang Niu <yongqiang.niu@xxxxxxxxxxxx> > --- > drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 92 ++++++++++++++++++++++++++++++--- > 1 file changed, 85 insertions(+), 7 deletions(-) > > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c > index 40df2c8..8cd107b 100644 > --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c > +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c > @@ -73,6 +73,13 @@ struct mtk_crtc_state { > unsigned int pending_vrefresh; > }; > > +#if IS_REACHABLE(CONFIG_MTK_CMDQ) > +struct mtk_cmdq_cb_data { > + struct cmdq_pkt *cmdq_handle; > + struct mtk_drm_crtc *mtk_crtc; > +}; > +#endif > + > static inline struct mtk_drm_crtc *to_mtk_crtc(struct drm_crtc *c) > { > return container_of(c, struct mtk_drm_crtc, base); > @@ -224,7 +231,64 @@ struct mtk_ddp_comp *mtk_drm_ddp_comp_for_plane(struct drm_crtc *crtc, > #if IS_REACHABLE(CONFIG_MTK_CMDQ) > static void ddp_cmdq_cb(struct cmdq_cb_data data) > { > - cmdq_pkt_destroy(data.data); > + struct mtk_cmdq_cb_data *cb_data = data.data; > + struct mtk_drm_crtc *mtk_crtc; > + struct mtk_crtc_state *state; > + unsigned int i; > + > + if (!cb_data) { > + DRM_ERROR("cmdq callback data is null pointer!\n"); > + return; > + } > + > + if (data.sta != 0) { > + DRM_WARN("cmdq callback error %d!!\n", data.sta); > + goto destroy_pkt; > + } > + > + mtk_crtc = cb_data->mtk_crtc; > + if (!mtk_crtc) { > + DRM_ERROR("cmdq callback mtk_crtc is null pointer!\n"); > + goto destroy_pkt; > + } > + > + state = to_mtk_crtc_state(mtk_crtc->base.state); > + > + if (state->pending_config) { > + state->pending_config = false; > + } > + > + if (mtk_crtc->pending_planes) { > + for (i = 0; i < mtk_crtc->layer_nr; i++) { > + struct drm_plane *plane = &mtk_crtc->planes[i]; > + struct mtk_plane_state *plane_state; > + > + plane_state = to_mtk_plane_state(plane->state); > + > + if (plane_state->pending.config) > + plane_state->pending.config = false; > + } > + mtk_crtc->pending_planes = false; > + } > + > + if (mtk_crtc->pending_async_planes) { > + for (i = 0; i < mtk_crtc->layer_nr; i++) { > + struct drm_plane *plane = &mtk_crtc->planes[i]; > + struct mtk_plane_state *plane_state; > + > + plane_state = to_mtk_plane_state(plane->state); > + > + if (plane_state->pending.async_config) > + plane_state->pending.async_config = false; > + } > + mtk_crtc->pending_async_planes = false; > + } > + > +destroy_pkt: > + if (cb_data->cmdq_handle) > + cmdq_pkt_destroy(cb_data->cmdq_handle); > + > + kfree(cb_data); > } > #endif > > @@ -378,7 +442,8 @@ static void mtk_crtc_ddp_config(struct drm_crtc *crtc, > state->pending_vrefresh, 0, > cmdq_handle); > > - state->pending_config = false; > + if (!cmdq_handle) > + state->pending_config = false; > } > > if (mtk_crtc->pending_planes) { > @@ -398,9 +463,12 @@ static void mtk_crtc_ddp_config(struct drm_crtc *crtc, > mtk_ddp_comp_layer_config(comp, local_layer, > plane_state, > cmdq_handle); > - plane_state->pending.config = false; > + if (!cmdq_handle) > + plane_state->pending.config = false; > } > - mtk_crtc->pending_planes = false; > + > + if (!cmdq_handle) > + mtk_crtc->pending_planes = false; > } > > if (mtk_crtc->pending_async_planes) { > @@ -420,9 +488,13 @@ static void mtk_crtc_ddp_config(struct drm_crtc *crtc, > mtk_ddp_comp_layer_config(comp, local_layer, > plane_state, > cmdq_handle); > - plane_state->pending.async_config = false; > + > + if (!cmdq_handle) > + plane_state->pending.async_config = false; > } > - mtk_crtc->pending_async_planes = false; > + > + if (!cmdq_handle) > + mtk_crtc->pending_async_planes = false; > } > } > > @@ -469,13 +541,19 @@ static void mtk_drm_crtc_update_config(struct mtk_drm_crtc *mtk_crtc, > } > #if IS_REACHABLE(CONFIG_MTK_CMDQ) > if (mtk_crtc->cmdq_client) { > + struct mtk_cmdq_cb_data *cb_data; > + > mbox_flush(mtk_crtc->cmdq_client->chan, 2000); > cmdq_handle = cmdq_pkt_create(mtk_crtc->cmdq_client, PAGE_SIZE); > cmdq_pkt_clear_event(cmdq_handle, mtk_crtc->cmdq_event); > cmdq_pkt_wfe(cmdq_handle, mtk_crtc->cmdq_event, false); > mtk_crtc_ddp_config(crtc, cmdq_handle); > cmdq_pkt_finalize(cmdq_handle); > - cmdq_pkt_flush_async(cmdq_handle, ddp_cmdq_cb, cmdq_handle); > + > + cb_data = kmalloc(sizeof(*cb_data), GFP_KERNEL); > + cb_data->cmdq_handle = cmdq_handle; > + cb_data->mtk_crtc = mtk_crtc; > + cmdq_pkt_flush_async(cmdq_handle, ddp_cmdq_cb, cb_data); > } > #endif > mtk_crtc->config_updating = false; > -- > 1.8.1.1.dirty >
