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path: root/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
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Diffstat (limited to 'drivers/gpu/drm/rockchip/rockchip_drm_vop.c')
-rw-r--r--drivers/gpu/drm/rockchip/rockchip_drm_vop.c51
1 files changed, 26 insertions, 25 deletions
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
index 20a9c296d027..3bb242f7d32f 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
@@ -924,29 +924,17 @@ static void vop_plane_atomic_async_update(struct drm_plane *plane,
struct drm_plane_state *new_state)
{
struct vop *vop = to_vop(plane->state->crtc);
- struct drm_plane_state *plane_state;
-
- plane_state = plane->funcs->atomic_duplicate_state(plane);
- plane_state->crtc_x = new_state->crtc_x;
- plane_state->crtc_y = new_state->crtc_y;
- plane_state->crtc_h = new_state->crtc_h;
- plane_state->crtc_w = new_state->crtc_w;
- plane_state->src_x = new_state->src_x;
- plane_state->src_y = new_state->src_y;
- plane_state->src_h = new_state->src_h;
- plane_state->src_w = new_state->src_w;
-
- if (plane_state->fb != new_state->fb)
- drm_atomic_set_fb_for_plane(plane_state, new_state->fb);
-
- swap(plane_state, plane->state);
-
- if (plane->state->fb && plane->state->fb != new_state->fb) {
- drm_framebuffer_get(plane->state->fb);
- WARN_ON(drm_crtc_vblank_get(plane->state->crtc) != 0);
- drm_flip_work_queue(&vop->fb_unref_work, plane->state->fb);
- set_bit(VOP_PENDING_FB_UNREF, &vop->pending);
- }
+ struct drm_framebuffer *old_fb = plane->state->fb;
+
+ plane->state->crtc_x = new_state->crtc_x;
+ plane->state->crtc_y = new_state->crtc_y;
+ plane->state->crtc_h = new_state->crtc_h;
+ plane->state->crtc_w = new_state->crtc_w;
+ plane->state->src_x = new_state->src_x;
+ plane->state->src_y = new_state->src_y;
+ plane->state->src_h = new_state->src_h;
+ plane->state->src_w = new_state->src_w;
+ swap(plane->state->fb, new_state->fb);
if (vop->is_enabled) {
rockchip_drm_psr_inhibit_get_state(new_state->state);
@@ -955,9 +943,22 @@ static void vop_plane_atomic_async_update(struct drm_plane *plane,
vop_cfg_done(vop);
spin_unlock(&vop->reg_lock);
rockchip_drm_psr_inhibit_put_state(new_state->state);
- }
- plane->funcs->atomic_destroy_state(plane, plane_state);
+ /*
+ * A scanout can still be occurring, so we can't drop the
+ * reference to the old framebuffer. To solve this we get a
+ * reference to old_fb and set a worker to release it later.
+ * FIXME: if we perform 500 async_update calls before the
+ * vblank, then we can have 500 different framebuffers waiting
+ * to be released.
+ */
+ if (old_fb && plane->state->fb != old_fb) {
+ drm_framebuffer_get(old_fb);
+ WARN_ON(drm_crtc_vblank_get(plane->state->crtc) != 0);
+ drm_flip_work_queue(&vop->fb_unref_work, old_fb);
+ set_bit(VOP_PENDING_FB_UNREF, &vop->pending);
+ }
+ }
}
static const struct drm_plane_helper_funcs plane_helper_funcs = {