diff options
Diffstat (limited to 'drivers/gpu/drm/vkms/vkms_plane.c')
| -rw-r--r-- | drivers/gpu/drm/vkms/vkms_plane.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vkms/vkms_plane.c b/drivers/gpu/drm/vkms/vkms_plane.c index 70fca22bc51b..c91661631c76 100644 --- a/drivers/gpu/drm/vkms/vkms_plane.c +++ b/drivers/gpu/drm/vkms/vkms_plane.c @@ -16,11 +16,18 @@ 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 (WARN_ON(!crc_data)) + DRM_INFO("Couldn't allocate crc_data"); + + vkms_state->crc_data = crc_data; + __drm_atomic_helper_plane_duplicate_state(plane, &vkms_state->base); @@ -31,6 +38,18 @@ static void vkms_plane_destroy_state(struct drm_plane *plane, struct drm_plane_state *old_state) { struct vkms_plane_state *vkms_state = to_vkms_plane_state(old_state); + struct drm_crtc *crtc = vkms_state->base.crtc; + + if (crtc) { + /* dropping the reference we acquired in + * vkms_primary_plane_update() + */ + if (drm_framebuffer_read_refcount(&vkms_state->crc_data->fb)) + drm_framebuffer_put(&vkms_state->crc_data->fb); + } + + kfree(vkms_state->crc_data); + vkms_state->crc_data = NULL; __drm_atomic_helper_plane_destroy_state(old_state); kfree(vkms_state); @@ -65,6 +84,17 @@ static const struct drm_plane_funcs vkms_plane_funcs = { static void vkms_primary_plane_update(struct drm_plane *plane, struct drm_plane_state *old_state) { + struct vkms_plane_state *vkms_plane_state; + struct vkms_crc_data *crc_data; + + if (!plane->state->crtc || !plane->state->fb) + return; + + vkms_plane_state = to_vkms_plane_state(plane->state); + crc_data = vkms_plane_state->crc_data; + memcpy(&crc_data->src, &plane->state->src, sizeof(struct drm_rect)); + memcpy(&crc_data->fb, plane->state->fb, sizeof(struct drm_framebuffer)); + drm_framebuffer_get(&crc_data->fb); } static int vkms_plane_atomic_check(struct drm_plane *plane, |