On Tue, Nov 15, 2016 at 08:58:17AM +0000, Chris Wilson wrote:
> Since an fb may have multiple VMA (due to rotations etc), we need to
> wait a vblank and unpin the old VMA not if the fb itself is changed, but
> if the underlying VMA is changed.
>
> Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
Imo we should move this into core state, iirc we're not the only ones
needing it. This = fb_changed. Probably also needs to be on the
plane_state.
-Daniel
> ---
> drivers/gpu/drm/i915/intel_display.c | 10 +++++++---
> 1 file changed, 7 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_display.c
> b/drivers/gpu/drm/i915/intel_display.c
> index 4d578dc6d23f..a92adce033ab 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -12476,9 +12476,6 @@ int intel_plane_atomic_calc_changes(struct
> drm_crtc_state *crtc_state,
> if (!was_visible && !visible)
> return 0;
>
> - if (fb != old_plane_state->base.fb)
> - pipe_config->fb_changed = true;
> -
> turn_off = was_visible && (!visible || mode_changed);
> turn_on = visible && (!was_visible || mode_changed);
>
> @@ -14228,6 +14225,13 @@ intel_prepare_plane_fb(struct drm_plane *plane,
> return PTR_ERR(vma);
>
> to_intel_plane_state(new_state)->vma = vma;
> + if (to_intel_plane_state(plane->state)->vma != vma) {
> + struct intel_crtc_state *crtc_state;
> +
> + crtc_state =
> intel_atomic_get_crtc_state(new_state->state,
> +
> to_intel_crtc(new_state->crtc));
> + crtc_state->fb_changed = true;
> + }
> }
>
> return 0;
> --
> 2.10.2
>
> _______________________________________________
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> Intel-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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