summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/drm_crtc.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/gpu/drm/drm_crtc.c')
-rw-r--r--drivers/gpu/drm/drm_crtc.c140
1 files changed, 111 insertions, 29 deletions
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index f6191215b..e08f96228 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -430,9 +430,7 @@ EXPORT_SYMBOL(drm_framebuffer_init);
static void __drm_framebuffer_unregister(struct drm_device *dev,
struct drm_framebuffer *fb)
{
- mutex_lock(&dev->mode_config.idr_mutex);
- idr_remove(&dev->mode_config.crtc_idr, fb->base.id);
- mutex_unlock(&dev->mode_config.idr_mutex);
+ drm_mode_object_put(dev, &fb->base);
fb->base.id = 0;
}
@@ -1150,6 +1148,29 @@ out_unlock:
EXPORT_SYMBOL(drm_encoder_init);
/**
+ * drm_encoder_index - find the index of a registered encoder
+ * @encoder: encoder to find index for
+ *
+ * Given a registered encoder, return the index of that encoder within a DRM
+ * device's list of encoders.
+ */
+unsigned int drm_encoder_index(struct drm_encoder *encoder)
+{
+ unsigned int index = 0;
+ struct drm_encoder *tmp;
+
+ drm_for_each_encoder(tmp, encoder->dev) {
+ if (tmp == encoder)
+ return index;
+
+ index++;
+ }
+
+ BUG();
+}
+EXPORT_SYMBOL(drm_encoder_index);
+
+/**
* drm_encoder_cleanup - cleans up an initialised encoder
* @encoder: encoder to cleanup
*
@@ -1531,6 +1552,41 @@ static int drm_mode_create_standard_properties(struct drm_device *dev)
return -ENOMEM;
dev->mode_config.prop_mode_id = prop;
+ prop = drm_property_create(dev,
+ DRM_MODE_PROP_BLOB,
+ "DEGAMMA_LUT", 0);
+ if (!prop)
+ return -ENOMEM;
+ dev->mode_config.degamma_lut_property = prop;
+
+ prop = drm_property_create_range(dev,
+ DRM_MODE_PROP_IMMUTABLE,
+ "DEGAMMA_LUT_SIZE", 0, UINT_MAX);
+ if (!prop)
+ return -ENOMEM;
+ dev->mode_config.degamma_lut_size_property = prop;
+
+ prop = drm_property_create(dev,
+ DRM_MODE_PROP_BLOB,
+ "CTM", 0);
+ if (!prop)
+ return -ENOMEM;
+ dev->mode_config.ctm_property = prop;
+
+ prop = drm_property_create(dev,
+ DRM_MODE_PROP_BLOB,
+ "GAMMA_LUT", 0);
+ if (!prop)
+ return -ENOMEM;
+ dev->mode_config.gamma_lut_property = prop;
+
+ prop = drm_property_create_range(dev,
+ DRM_MODE_PROP_IMMUTABLE,
+ "GAMMA_LUT_SIZE", 0, UINT_MAX);
+ if (!prop)
+ return -ENOMEM;
+ dev->mode_config.gamma_lut_size_property = prop;
+
return 0;
}
@@ -5254,7 +5310,6 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev,
struct drm_crtc *crtc;
struct drm_framebuffer *fb = NULL;
struct drm_pending_vblank_event *e = NULL;
- unsigned long flags;
int ret = -EINVAL;
if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS ||
@@ -5305,41 +5360,26 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev,
}
if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
- ret = -ENOMEM;
- spin_lock_irqsave(&dev->event_lock, flags);
- if (file_priv->event_space < sizeof(e->event)) {
- spin_unlock_irqrestore(&dev->event_lock, flags);
- goto out;
- }
- file_priv->event_space -= sizeof(e->event);
- spin_unlock_irqrestore(&dev->event_lock, flags);
-
- e = kzalloc(sizeof(*e), GFP_KERNEL);
- if (e == NULL) {
- spin_lock_irqsave(&dev->event_lock, flags);
- file_priv->event_space += sizeof(e->event);
- spin_unlock_irqrestore(&dev->event_lock, flags);
+ e = kzalloc(sizeof *e, GFP_KERNEL);
+ if (!e) {
+ ret = -ENOMEM;
goto out;
}
-
e->event.base.type = DRM_EVENT_FLIP_COMPLETE;
e->event.base.length = sizeof(e->event);
e->event.user_data = page_flip->user_data;
- e->base.event = &e->event.base;
- e->base.file_priv = file_priv;
- e->base.destroy =
- (void (*) (struct drm_pending_event *)) kfree;
+ ret = drm_event_reserve_init(dev, file_priv, &e->base, &e->event.base);
+ if (ret) {
+ kfree(e);
+ goto out;
+ }
}
crtc->primary->old_fb = crtc->primary->fb;
ret = crtc->funcs->page_flip(crtc, fb, e, page_flip->flags);
if (ret) {
- if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
- spin_lock_irqsave(&dev->event_lock, flags);
- file_priv->event_space += sizeof(e->event);
- spin_unlock_irqrestore(&dev->event_lock, flags);
- kfree(e);
- }
+ if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT)
+ drm_event_cancel_free(dev, &e->base);
/* Keep the old fb, don't unref it. */
crtc->primary->old_fb = NULL;
} else {
@@ -5720,6 +5760,48 @@ int drm_format_vert_chroma_subsampling(uint32_t format)
EXPORT_SYMBOL(drm_format_vert_chroma_subsampling);
/**
+ * drm_format_plane_width - width of the plane given the first plane
+ * @width: width of the first plane
+ * @format: pixel format
+ * @plane: plane index
+ *
+ * Returns:
+ * The width of @plane, given that the width of the first plane is @width.
+ */
+int drm_format_plane_width(int width, uint32_t format, int plane)
+{
+ if (plane >= drm_format_num_planes(format))
+ return 0;
+
+ if (plane == 0)
+ return width;
+
+ return width / drm_format_horz_chroma_subsampling(format);
+}
+EXPORT_SYMBOL(drm_format_plane_width);
+
+/**
+ * drm_format_plane_height - height of the plane given the first plane
+ * @height: height of the first plane
+ * @format: pixel format
+ * @plane: plane index
+ *
+ * Returns:
+ * The height of @plane, given that the height of the first plane is @height.
+ */
+int drm_format_plane_height(int height, uint32_t format, int plane)
+{
+ if (plane >= drm_format_num_planes(format))
+ return 0;
+
+ if (plane == 0)
+ return height;
+
+ return height / drm_format_vert_chroma_subsampling(format);
+}
+EXPORT_SYMBOL(drm_format_plane_height);
+
+/**
* drm_rotation_simplify() - Try to simplify the rotation
* @rotation: Rotation to be simplified
* @supported_rotations: Supported rotations