Op 25-11-15 om 17:48 schreef Matt Roper:
> The intel_dump_pipe_config() always dumps the currently active plane
> state for each plane on a CRTC. If we're calling this function to dump
> CRTC state that is in-flight (not yet active), then this mismatch can be
> misleading and confusing. Let's pay attention to whether the state
> we're dumping is part of an in-flight transaction (because
> crtc_state->state is non-NULL); if it is, we'll dump the corresponding
> in-flight plane state instead of the active state.
>
> Signed-off-by: Matt Roper <matthew.d.ro...@intel.com>
> ---
> drivers/gpu/drm/i915/intel_display.c | 14 +++++++++++++-
> 1 file changed, 13 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_display.c
> b/drivers/gpu/drm/i915/intel_display.c
> index d03a235..0e74287 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -12162,11 +12162,23 @@ static void intel_dump_pipe_config(struct
> intel_crtc *crtc,
>
> DRM_DEBUG_KMS("planes on this crtc\n");
> list_for_each_entry(plane, &dev->mode_config.plane_list, head) {
> + struct drm_plane_state *ps = NULL;
> +
> intel_plane = to_intel_plane(plane);
> if (intel_plane->pipe != crtc->pipe)
> continue;
>
> - state = to_intel_plane_state(plane->state);
> + /* Get in-flight plane state, if any */
> + if (pipe_config->base.state)
> + ps =
> drm_atomic_get_existing_plane_state(pipe_config->base.state,
> + plane);
> +
> + /* If no in-flight state, use active state instead */
> + if (!ps)
> + ps = plane->state;
> +
Could plane state be removed from dump_pipe_config instead? There's no good way
to do it race free and
it's better to do it in intel_plane_atomic_calc_changes.
~Maarten
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