drm/qxl: move shadow handling to new qxl_prepare_shadow()

Pure code motion, no functional change.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: http://patchwork.freedesktop.org/patch/msgid/20210217123213.2199186-10-kraxel@redhat.com

diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c
index f106da9..b315d74 100644 (file)
--- a/drivers/gpu/drm/qxl/qxl_display.c
+++ b/drivers/gpu/drm/qxl/qxl_display.c
@@ -771,13 +771,45 @@ static void qxl_calc_dumb_shadow(struct qxl_device *qdev,
                DRM_DEBUG("%dx%d\n", surf->width, surf->height);
 }
 
+static void qxl_prepare_shadow(struct qxl_device *qdev, struct qxl_bo *user_bo,
+                              int crtc_index)
+{
+       struct qxl_surface surf;
+
+       qxl_update_dumb_head(qdev, crtc_index,
+                            user_bo);
+       qxl_calc_dumb_shadow(qdev, &surf);
+       if (!qdev->dumb_shadow_bo ||
+           qdev->dumb_shadow_bo->surf.width  != surf.width ||
+           qdev->dumb_shadow_bo->surf.height != surf.height) {
+               if (qdev->dumb_shadow_bo) {
+                       drm_gem_object_put
+                               (&qdev->dumb_shadow_bo->tbo.base);
+                       qdev->dumb_shadow_bo = NULL;
+               }
+               qxl_bo_create(qdev, surf.height * surf.stride,
+                             true, true, QXL_GEM_DOMAIN_SURFACE, 0,
+                             &surf, &qdev->dumb_shadow_bo);
+       }
+       if (user_bo->shadow != qdev->dumb_shadow_bo) {
+               if (user_bo->shadow) {
+                       qxl_bo_unpin(user_bo->shadow);
+                       drm_gem_object_put
+                               (&user_bo->shadow->tbo.base);
+                       user_bo->shadow = NULL;
+               }
+               drm_gem_object_get(&qdev->dumb_shadow_bo->tbo.base);
+               user_bo->shadow = qdev->dumb_shadow_bo;
+               qxl_bo_pin(user_bo->shadow);
+       }
+}
+
 static int qxl_plane_prepare_fb(struct drm_plane *plane,
                                struct drm_plane_state *new_state)
 {
        struct qxl_device *qdev = to_qxl(plane->dev);
        struct drm_gem_object *obj;
        struct qxl_bo *user_bo;
-       struct qxl_surface surf;
 
        if (!new_state->fb)
                return 0;
@@ -787,32 +819,7 @@ static int qxl_plane_prepare_fb(struct drm_plane *plane,
 
        if (plane->type == DRM_PLANE_TYPE_PRIMARY &&
            user_bo->is_dumb) {
-               qxl_update_dumb_head(qdev, new_state->crtc->index,
-                                    user_bo);
-               qxl_calc_dumb_shadow(qdev, &surf);
-               if (!qdev->dumb_shadow_bo ||
-                   qdev->dumb_shadow_bo->surf.width  != surf.width ||
-                   qdev->dumb_shadow_bo->surf.height != surf.height) {
-                       if (qdev->dumb_shadow_bo) {
-                               drm_gem_object_put
-                                       (&qdev->dumb_shadow_bo->tbo.base);
-                               qdev->dumb_shadow_bo = NULL;
-                       }
-                       qxl_bo_create(qdev, surf.height * surf.stride,
-                                     true, true, QXL_GEM_DOMAIN_SURFACE, 0,
-                                     &surf, &qdev->dumb_shadow_bo);
-               }
-               if (user_bo->shadow != qdev->dumb_shadow_bo) {
-                       if (user_bo->shadow) {
-                               qxl_bo_unpin(user_bo->shadow);
-                               drm_gem_object_put
-                                       (&user_bo->shadow->tbo.base);
-                               user_bo->shadow = NULL;
-                       }
-                       drm_gem_object_get(&qdev->dumb_shadow_bo->tbo.base);
-                       user_bo->shadow = qdev->dumb_shadow_bo;
-                       qxl_bo_pin(user_bo->shadow);
-               }
+               qxl_prepare_shadow(qdev, user_bo, new_state->crtc->index);
        }
 
        return qxl_bo_pin(user_bo);