[PATCH 2/2] drm/mediatek: clear pending flag when cmdq packet is done.

From: Yongqiang Niu
Date: Fri Apr 30 2021 - 23:23:26 EST


In cmdq mode, packet may be flushed before it is executed, so
the pending flag should be cleared after cmdq packet is done.

Signed-off-by: CK Hu <ck.hu@xxxxxxxxxxxx>
Signed-off-by: Yongqiang Niu <yongqiang.niu@xxxxxxxxxxxx>
---
drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 57 ++++++++++++++++++++++++++++++---
1 file changed, 52 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
index c37881b..6a3cf47 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
@@ -231,18 +231,57 @@ static void ddp_cmdq_cb(struct cmdq_cb_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 == CMDQ_CB_ERROR) {
+ DRM_WARN("cmdq callback error!!\n");
+ 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;
+ }
+
mtk_drm_finish_page_flip(mtk_crtc);

destroy_pkt:
@@ -403,7 +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) {
@@ -423,9 +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) {
@@ -445,9 +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;
}
}

--
1.8.1.1.dirty