From: Thierry Reding <treding@xxxxxxxxxx>
Move the modeset locking from drivers into FB helpers.
Tested-by: John Stultz <john.stultz@xxxxxxxxxx>
Signed-off-by: Thierry Reding <treding@xxxxxxxxxx>
---
drivers/gpu/drm/drm_fb_helper.c | 39 ++++++++++++++++++++++++++++------
drivers/gpu/drm/i915/intel_dp_mst.c | 3 ---
drivers/gpu/drm/radeon/radeon_dp_mst.c | 7 ------
3 files changed, 33 insertions(+), 16 deletions(-)
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index 17fd98fe4a1f..6af80afc4f40 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -109,8 +109,8 @@ static DEFINE_MUTEX(kernel_fb_helper_lock);
for (({ lockdep_assert_held(&(fbh)->dev->mode_config.mutex); }), \
i__ = 0; i__ < (fbh)->connector_count; i__++)
-int drm_fb_helper_add_one_connector(struct drm_fb_helper *fb_helper,
- struct drm_connector *connector)
+static int __drm_fb_helper_add_one_connector(struct drm_fb_helper *fb_helper,
+ struct drm_connector *connector)
{
struct drm_fb_helper_connector **temp;
struct drm_fb_helper_connector *conn;
@@ -143,6 +143,20 @@ int drm_fb_helper_add_one_connector(struct drm_fb_helper *fb_helper,
fb_helper->connector_info[fb_helper->connector_count++] = conn;
return 0;
}
+
+int drm_fb_helper_add_one_connector(struct drm_fb_helper *fb_helper,
+ struct drm_connector *connector)
+{
+ int err;
+
+ mutex_lock(&fb_helper->dev->mode_config.mutex);
+
+ err = __drm_fb_helper_add_one_connector(fb_helper, connector);
+
+ mutex_unlock(&fb_helper->dev->mode_config.mutex);
+
+ return err;
+}
EXPORT_SYMBOL(drm_fb_helper_add_one_connector);
/**
@@ -172,8 +186,7 @@ int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper)
mutex_lock(&dev->mode_config.mutex);
drm_connector_list_iter_begin(dev, &conn_iter);
drm_for_each_connector_iter(connector, &conn_iter) {
- ret = drm_fb_helper_add_one_connector(fb_helper, connector);
-
+ ret = __drm_fb_helper_add_one_connector(fb_helper, connector);
if (ret)
goto fail;
}
@@ -198,8 +211,8 @@ int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper)
}
EXPORT_SYMBOL(drm_fb_helper_single_add_all_connectors);
-int drm_fb_helper_remove_one_connector(struct drm_fb_helper *fb_helper,
- struct drm_connector *connector)
+static int __drm_fb_helper_remove_one_connector(struct drm_fb_helper *fb_helper,
+ struct drm_connector *connector)
{
struct drm_fb_helper_connector *fb_helper_connector;
int i, j;
@@ -227,6 +240,20 @@ int drm_fb_helper_remove_one_connector(struct drm_fb_helper *fb_helper,
return 0;
}
+
+int drm_fb_helper_remove_one_connector(struct drm_fb_helper *fb_helper,
+ struct drm_connector *connector)
+{
+ int err;
+
+ mutex_lock(&fb_helper->dev->mode_config.mutex);
+
+ err = __drm_fb_helper_remove_one_connector(fb_helper, connector);
+
+ mutex_unlock(&fb_helper->dev->mode_config.mutex);
+
+ return err;
+}
EXPORT_SYMBOL(drm_fb_helper_remove_one_connector);
static void drm_fb_helper_save_lut_atomic(struct drm_crtc *crtc, struct drm_fb_helper *helper)
diff --git a/drivers/gpu/drm/i915/intel_dp_mst.c b/drivers/gpu/drm/i915/intel_dp_mst.c
index 094cbdcbcd6d..8336c5c6f45d 100644
--- a/drivers/gpu/drm/i915/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/intel_dp_mst.c
@@ -484,15 +484,12 @@ static void intel_dp_destroy_mst_connector(struct drm_dp_mst_topology_mgr *mgr,
struct drm_connector *connector)
{
struct intel_connector *intel_connector = to_intel_connector(connector);
- struct drm_device *dev = connector->dev;
drm_connector_unregister(connector);
/* need to nuke the connector */
- drm_modeset_lock_all(dev);
intel_connector_remove_from_fbdev(intel_connector);
intel_connector->mst_port = NULL;
- drm_modeset_unlock_all(dev);
drm_connector_unreference(&intel_connector->base);
DRM_DEBUG_KMS("\n");
diff --git a/drivers/gpu/drm/radeon/radeon_dp_mst.c b/drivers/gpu/drm/radeon/radeon_dp_mst.c
index 7d5ada3980dc..b1855cf0ae7a 100644
--- a/drivers/gpu/drm/radeon/radeon_dp_mst.c
+++ b/drivers/gpu/drm/radeon/radeon_dp_mst.c
@@ -300,9 +300,7 @@ static void radeon_dp_register_mst_connector(struct drm_connector *connector)
struct drm_device *dev = connector->dev;
struct radeon_device *rdev = dev->dev_private;
- drm_modeset_lock_all(dev);
radeon_fb_add_connector(rdev, connector);
- drm_modeset_unlock_all(dev);
drm_connector_register(connector);
}
@@ -315,13 +313,8 @@ static void radeon_dp_destroy_mst_connector(struct drm_dp_mst_topology_mgr *mgr,
struct radeon_device *rdev = dev->dev_private;
drm_connector_unregister(connector);
- /* need to nuke the connector */
- drm_modeset_lock_all(dev);
- /* dpms off */
radeon_fb_remove_connector(rdev, connector);
-
drm_connector_cleanup(connector);
- drm_modeset_unlock_all(dev);
kfree(connector);
DRM_DEBUG_KMS("\n");
--
2.12.0
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