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| author | Lucas Stach <l.stach@pengutronix.de> | 2018-09-11 15:55:07 +0200 |
|---|---|---|
| committer | Philipp Zabel <p.zabel@pengutronix.de> | 2019-01-23 11:58:55 +0100 |
| commit | 366cd3c8646a25a34d58e35c965a5acd906eaf5e (patch) | |
| tree | 2efdd6550e6ff8e1e178bf3bb2d072550aff938c | |
| parent | baaf4074feb822cdfeb847a4c036d088d2249c72 (diff) | |
| download | linux-0-day-366cd3c8646a25a34d58e35c965a5acd906eaf5e.tar.gz linux-0-day-366cd3c8646a25a34d58e35c965a5acd906eaf5e.tar.xz | |
drm/imx: ipuv3-plane: add function to query atomic update status
This function allows upper layer to check if a requested atomic update
to the plane has been applied or is still pending.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
[p.zabel@pengutronix.de: inverted logic: done -> pending]
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
| -rw-r--r-- | drivers/gpu/drm/imx/ipuv3-plane.c | 20 | ||||
| -rw-r--r-- | drivers/gpu/drm/imx/ipuv3-plane.h | 2 |
2 files changed, 22 insertions, 0 deletions
diff --git a/drivers/gpu/drm/imx/ipuv3-plane.c b/drivers/gpu/drm/imx/ipuv3-plane.c index 21e964f6ab5cf..03f9aadaab7f4 100644 --- a/drivers/gpu/drm/imx/ipuv3-plane.c +++ b/drivers/gpu/drm/imx/ipuv3-plane.c @@ -582,6 +582,7 @@ static void ipu_plane_atomic_update(struct drm_plane *plane, active = ipu_idmac_get_current_buffer(ipu_plane->ipu_ch); ipu_cpmem_set_buffer(ipu_plane->ipu_ch, !active, eba); ipu_idmac_select_buffer(ipu_plane->ipu_ch, !active); + ipu_plane->next_buf = !active; if (ipu_plane_separate_alpha(ipu_plane)) { active = ipu_idmac_get_current_buffer(ipu_plane->alpha_ch); ipu_cpmem_set_buffer(ipu_plane->alpha_ch, !active, @@ -709,6 +710,7 @@ static void ipu_plane_atomic_update(struct drm_plane *plane, ipu_cpmem_set_buffer(ipu_plane->ipu_ch, 1, eba); ipu_idmac_lock_enable(ipu_plane->ipu_ch, num_bursts); ipu_plane_enable(ipu_plane); + ipu_plane->next_buf = -1; } static const struct drm_plane_helper_funcs ipu_plane_helper_funcs = { @@ -718,6 +720,24 @@ static const struct drm_plane_helper_funcs ipu_plane_helper_funcs = { .atomic_update = ipu_plane_atomic_update, }; +bool ipu_plane_atomic_update_pending(struct drm_plane *plane) +{ + struct ipu_plane *ipu_plane = to_ipu_plane(plane); + struct drm_plane_state *state = plane->state; + struct ipu_plane_state *ipu_state = to_ipu_plane_state(state); + + /* disabled crtcs must not block the update */ + if (!state->crtc) + return false; + + if (ipu_state->use_pre) + return ipu_prg_channel_configure_pending(ipu_plane->ipu_ch); + else if (ipu_plane->next_buf >= 0) + return ipu_idmac_get_current_buffer(ipu_plane->ipu_ch) != + ipu_plane->next_buf; + + return false; +} int ipu_planes_assign_pre(struct drm_device *dev, struct drm_atomic_state *state) { diff --git a/drivers/gpu/drm/imx/ipuv3-plane.h b/drivers/gpu/drm/imx/ipuv3-plane.h index e563ea17a827c..15e85e15d35c5 100644 --- a/drivers/gpu/drm/imx/ipuv3-plane.h +++ b/drivers/gpu/drm/imx/ipuv3-plane.h @@ -27,6 +27,7 @@ struct ipu_plane { int dp_flow; bool disabling; + int next_buf; }; struct ipu_plane *ipu_plane_init(struct drm_device *dev, struct ipu_soc *ipu, @@ -48,5 +49,6 @@ int ipu_plane_irq(struct ipu_plane *plane); void ipu_plane_disable(struct ipu_plane *ipu_plane, bool disable_dp_channel); void ipu_plane_disable_deferred(struct drm_plane *plane); +bool ipu_plane_atomic_update_pending(struct drm_plane *plane); #endif |