On Thu, Mar 22, 2018 at 05:22:54PM +0200, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
>
> drm_atomic_helper_commit_duplicated_state() should only be called
> resume/reset/load_detect paths where plane->old_fb should always be
> NULL and plane->fb should be equal to the new_plane_state->fb.
> Assert that is indeed the case.
>
> Cc: martin.peres@xxxxxxx
> Cc: chris@xxxxxxxxxxxxxxxxxx
> Cc: Dave Airlie <airlied@xxxxxxxxx> (v1)
The (v1) here looks funny. dim add-missing-cc not working?
> Cc: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
> Cc: Daniel Vetter <daniel.vetter@xxxxxxxxx>
> Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> ---
> drivers/gpu/drm/drm_atomic_helper.c | 7 ++++++-
> 1 file changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
> index 39a69508d8c9..1b39ebf2be2e 100644
> --- a/drivers/gpu/drm/drm_atomic_helper.c
> +++ b/drivers/gpu/drm/drm_atomic_helper.c
> @@ -3106,8 +3106,13 @@ int drm_atomic_helper_commit_duplicated_state(struct drm_atomic_state *state,
>
> state->acquire_ctx = ctx;
>
> - for_each_new_plane_in_state(state, plane, new_plane_state, i)
> + for_each_new_plane_in_state(state, plane, new_plane_state, i) {
> + WARN_ON(plane->crtc != new_plane_state->crtc);
> + WARN_ON(plane->fb != new_plane_state->fb);
> + WARN_ON(plane->old_fb);
Yeah I think with your rework of how this works this holds true now.
Reviewed-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
> +
> state->planes[i].old_state = plane->state;
> + }
>
> for_each_new_crtc_in_state(state, crtc, new_crtc_state, i)
> state->crtcs[i].old_state = crtc->state;
> --
> 2.16.1
>
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--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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