Hello Keith,
+
+static void vs_plane_atomic_update(struct drm_plane *plane,
+ struct drm_atomic_state *state)
+{
+ struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
+ plane);
+ unsigned char i, num_planes;
+ struct drm_framebuffer *fb;
+ struct vs_plane *vs_plane = to_vs_plane(plane);
+ //struct drm_plane_state *state = plane->state;
+ struct vs_crtc *vs_crtc = to_vs_crtc(new_state->crtc);
+ struct vs_plane_state *plane_state = to_vs_plane_state(new_state);
+ //struct drm_format_name_buf *name = &plane_state->status.format_name;
+
+ if (!new_state->fb || !new_state->crtc)
+ return;
+
+ fb = new_state->fb;
+
+ num_planes = vs_get_plane_number(fb);
+
+ for (i = 0; i < num_planes; i++) {
+ struct vs_gem_object *vs_obj;
+
+ vs_obj = vs_fb_get_gem_obj(fb, i);
+ vs_plane->dma_addr[i] = vs_obj->iova + fb->offsets[i];
There is a dcache flush operation here in downstream driver. Is that a
cache coherence problem?
Best regards,
Shengyu
+ }
+
+ plane_state->status.src = drm_plane_state_src(new_state);
+ plane_state->status.dest = drm_plane_state_dest(new_state);
+
+ vs_plane->funcs->update(vs_crtc->dev, vs_plane, plane, state);
+}
