/**
* drm_atomic_helper_plane_duplicate_state - default state duplicate hook
* @plane: drm plane
*
* Default plane state duplicate hook for drivers which don't have their own
* subclassed plane state structure.
*/
struct drm_plane_state *
drm_atomic_helper_plane_duplicate_state(struct drm_plane *plane)
{
struct drm_plane_state *state;
if (WARN_ON(!plane->state))
return NULL;
state = kmalloc(sizeof(*state), GFP_KERNEL);
if (state)
__drm_atomic_helper_plane_duplicate_state(plane, state);
return state;
}
static struct drm_plane_state *mtk_plane_duplicate_state(struct drm_plane *plane)
{
struct mtk_plane_state *old_state = to_mtk_plane_state(plane->state);
struct mtk_plane_state *state;
state = kzalloc(sizeof(*state), GFP_KERNEL);
if (!state)
return NULL;
__drm_atomic_helper_plane_duplicate_state(plane, &state->base);
WARN_ON(state->base.plane != plane);
state->pending = old_state->pending;
return &state->base;
}
/**
* intel_plane_duplicate_state - duplicate plane state
* @plane: drm plane
*
* Allocates and returns a copy of the plane state (both common and
* Intel-specific) for the specified plane.
*
* Returns: The newly allocated plane state, or NULL on failure.
*/
struct drm_plane_state *
intel_plane_duplicate_state(struct drm_plane *plane)
{
struct drm_plane_state *state;
struct intel_plane_state *intel_state;
intel_state = kmemdup(plane->state, sizeof(*intel_state), GFP_KERNEL);
if (!intel_state)
return NULL;
state = &intel_state->base;
__drm_atomic_helper_plane_duplicate_state(plane, state);
intel_state->wait_req = NULL;
return state;
}
static struct drm_plane_state *
vkms_plane_duplicate_state(struct drm_plane *plane)
{
struct vkms_plane_state *vkms_state;
struct vkms_crc_data *crc_data;
vkms_state = kzalloc(sizeof(*vkms_state), GFP_KERNEL);
if (!vkms_state)
return NULL;
crc_data = kzalloc(sizeof(*crc_data), GFP_KERNEL);
if (!crc_data) {
DRM_DEBUG_KMS("Couldn't allocate crc_data\n");
kfree(vkms_state);
return NULL;
}
vkms_state->crc_data = crc_data;
__drm_atomic_helper_plane_duplicate_state(plane,
&vkms_state->base);
return &vkms_state->base;
}
