From: Daniel Vetter <daniel.vetter@xxxxxxxx>
drm_plane_helper_disable is a non-atomic drivers only function, and
will blow up (since no one passes the locking context it needs).
Atomic drivers which want to quiescent their hw on unload should
use drm_atomic_helper_shutdown() instead.
The sti cleanup code seems supremely confused:
- In the load error path it calls drm_mode_config_cleanup before it
stops various kms services like poll worker or fbdev emulation.
That's going to oops.
- The actual unload code doesn't even bother with the cleanup and just
leaks.
Try to fix this while at it.
Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
Complements original patch after testing on board.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@xxxxxxxxxx>
Cc: Vincent Abriou <vincent.abriou@xxxxxx>
Reviewed-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/sti/sti_crtc.c | 2 ++
drivers/gpu/drm/sti/sti_cursor.c | 10 +---------
drivers/gpu/drm/sti/sti_drv.c | 6 +++---
drivers/gpu/drm/sti/sti_gdp.c | 10 +---------
drivers/gpu/drm/sti/sti_hqvdp.c | 10 +---------
drivers/gpu/drm/sti/sti_tvout.c | 24 ------------------------
6 files changed, 8 insertions(+), 54 deletions(-)
diff --git a/drivers/gpu/drm/sti/sti_crtc.c b/drivers/gpu/drm/sti/sti_crtc.c
index 5824e6aca8f4..61c2379fba87 100644
--- a/drivers/gpu/drm/sti/sti_crtc.c
+++ b/drivers/gpu/drm/sti/sti_crtc.c
@@ -40,6 +40,8 @@ static void sti_crtc_atomic_disable(struct drm_crtc *crtc,
DRM_DEBUG_DRIVER("\n");
mixer->status = STI_MIXER_DISABLING;
+
+ drm_crtc_wait_one_vblank(crtc);
}
static int
diff --git a/drivers/gpu/drm/sti/sti_cursor.c b/drivers/gpu/drm/sti/sti_cursor.c
index 57b870e1e696..e1ba253055c7 100644
--- a/drivers/gpu/drm/sti/sti_cursor.c
+++ b/drivers/gpu/drm/sti/sti_cursor.c
@@ -328,14 +328,6 @@ static const struct drm_plane_helper_funcs sti_cursor_helpers_funcs = {
.atomic_disable = sti_cursor_atomic_disable,
};
-static void sti_cursor_destroy(struct drm_plane *drm_plane)
-{
- DRM_DEBUG_DRIVER("\n");
-
- drm_plane_helper_disable(drm_plane, NULL);
- drm_plane_cleanup(drm_plane);
-}
-
static int sti_cursor_late_register(struct drm_plane *drm_plane)
{
struct sti_plane *plane = to_sti_plane(drm_plane);
@@ -347,7 +339,7 @@ static int sti_cursor_late_register(struct drm_plane *drm_plane)
static const struct drm_plane_funcs sti_cursor_plane_helpers_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
- .destroy = sti_cursor_destroy,
+ .destroy = drm_plane_cleanup,
.reset = sti_plane_reset,
.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
diff --git a/drivers/gpu/drm/sti/sti_drv.c b/drivers/gpu/drm/sti/sti_drv.c
index 6dced8abcf16..ac54e0f9caea 100644
--- a/drivers/gpu/drm/sti/sti_drv.c
+++ b/drivers/gpu/drm/sti/sti_drv.c
@@ -206,6 +206,8 @@ static void sti_cleanup(struct drm_device *ddev)
struct sti_private *private = ddev->dev_private;
drm_kms_helper_poll_fini(ddev);
+ drm_atomic_helper_shutdown(ddev);
+ drm_mode_config_cleanup(ddev);
component_unbind_all(ddev->dev, ddev);
kfree(private);
ddev->dev_private = NULL;
@@ -230,7 +232,7 @@ static int sti_bind(struct device *dev)
ret = drm_dev_register(ddev, 0);
if (ret)
- goto err_register;
+ goto err_cleanup;
drm_mode_config_reset(ddev);
@@ -238,8 +240,6 @@ static int sti_bind(struct device *dev)
return 0;
-err_register:
- drm_mode_config_cleanup(ddev);
err_cleanup:
sti_cleanup(ddev);
err_drm_dev_put:
diff --git a/drivers/gpu/drm/sti/sti_gdp.c b/drivers/gpu/drm/sti/sti_gdp.c
index c32de6cbf061..87b50451afd7 100644
--- a/drivers/gpu/drm/sti/sti_gdp.c
+++ b/drivers/gpu/drm/sti/sti_gdp.c
@@ -879,14 +879,6 @@ static const struct drm_plane_helper_funcs sti_gdp_helpers_funcs = {
.atomic_disable = sti_gdp_atomic_disable,
};
-static void sti_gdp_destroy(struct drm_plane *drm_plane)
-{
- DRM_DEBUG_DRIVER("\n");
-
- drm_plane_helper_disable(drm_plane, NULL);
- drm_plane_cleanup(drm_plane);
-}
-
static int sti_gdp_late_register(struct drm_plane *drm_plane)
{
struct sti_plane *plane = to_sti_plane(drm_plane);
@@ -898,7 +890,7 @@ static int sti_gdp_late_register(struct drm_plane *drm_plane)
static const struct drm_plane_funcs sti_gdp_plane_helpers_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
- .destroy = sti_gdp_destroy,
+ .destroy = drm_plane_cleanup,
.reset = sti_plane_reset,
.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
diff --git a/drivers/gpu/drm/sti/sti_hqvdp.c b/drivers/gpu/drm/sti/sti_hqvdp.c
index 03ac3b4a4469..065a5b08a702 100644
--- a/drivers/gpu/drm/sti/sti_hqvdp.c
+++ b/drivers/gpu/drm/sti/sti_hqvdp.c
@@ -1256,14 +1256,6 @@ static const struct drm_plane_helper_funcs sti_hqvdp_helpers_funcs = {
.atomic_disable = sti_hqvdp_atomic_disable,
};
-static void sti_hqvdp_destroy(struct drm_plane *drm_plane)
-{
- DRM_DEBUG_DRIVER("\n");
-
- drm_plane_helper_disable(drm_plane, NULL);
- drm_plane_cleanup(drm_plane);
-}
-
static int sti_hqvdp_late_register(struct drm_plane *drm_plane)
{
struct sti_plane *plane = to_sti_plane(drm_plane);
@@ -1275,7 +1267,7 @@ static int sti_hqvdp_late_register(struct drm_plane *drm_plane)
static const struct drm_plane_funcs sti_hqvdp_plane_helpers_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
- .destroy = sti_hqvdp_destroy,
+ .destroy = drm_plane_cleanup,
.reset = sti_plane_reset,
.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
diff --git a/drivers/gpu/drm/sti/sti_tvout.c b/drivers/gpu/drm/sti/sti_tvout.c
index ea4a3b87fa55..4dc3b2ec40eb 100644
--- a/drivers/gpu/drm/sti/sti_tvout.c
+++ b/drivers/gpu/drm/sti/sti_tvout.c
@@ -788,21 +788,6 @@ static void sti_tvout_create_encoders(struct drm_device *dev,
tvout->dvo = sti_tvout_create_dvo_encoder(dev, tvout);
}
-static void sti_tvout_destroy_encoders(struct sti_tvout *tvout)
-{
- if (tvout->hdmi)
- drm_encoder_cleanup(tvout->hdmi);
- tvout->hdmi = NULL;
-
- if (tvout->hda)
- drm_encoder_cleanup(tvout->hda);
- tvout->hda = NULL;
-
- if (tvout->dvo)
- drm_encoder_cleanup(tvout->dvo);
- tvout->dvo = NULL;
-}
-
static int sti_tvout_bind(struct device *dev, struct device *master, void *data)
{
struct sti_tvout *tvout = dev_get_drvdata(dev);
@@ -815,17 +800,8 @@ static int sti_tvout_bind(struct device *dev, struct device *master, void *data)
return 0;
}
-static void sti_tvout_unbind(struct device *dev, struct device *master,
- void *data)
-{
- struct sti_tvout *tvout = dev_get_drvdata(dev);
-
- sti_tvout_destroy_encoders(tvout);
-}
-
static const struct component_ops sti_tvout_ops = {
.bind = sti_tvout_bind,
- .unbind = sti_tvout_unbind,
};
static int sti_tvout_probe(struct platform_device *pdev)
--
2.15.0
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