-static int intel_crtc_cursor_set_obj(struct drm_crtc *crtc,
- struct drm_i915_gem_object *obj,
- uint32_t width, uint32_t height)
-{
- struct drm_device *dev = crtc->dev;
- struct drm_i915_private *dev_priv = to_i915(dev);
- struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
- enum pipe pipe = intel_crtc->pipe;
- unsigned old_width;
- uint32_t addr;
- int ret;
-
- /* if we want to turn off the cursor ignore width and height */
- if (!obj) {
- DRM_DEBUG_KMS("cursor off\n");
- addr = 0;
- mutex_lock(&dev->struct_mutex);
- goto finish;
- }
-
- /* we only need to pin inside GTT if cursor is non-phy */
- mutex_lock(&dev->struct_mutex);
- if (!INTEL_INFO(dev)->cursor_needs_physical) {
- unsigned alignment;
-
- /*
- * Global gtt pte registers are special registers which actually
- * forward writes to a chunk of system memory. Which means that
- * there is no risk that the register values disappear as soon
- * as we call intel_runtime_pm_put(), so it is correct to wrap
- * only the pin/unpin/fence and not more.
- */
- intel_runtime_pm_get(dev_priv);
-
- /* Note that the w/a also requires 2 PTE of padding following
- * the bo. We currently fill all unused PTE with the shadow
- * page and so we should always have valid PTE following the
- * cursor preventing the VT-d warning.
- */
- alignment = 0;
- if (need_vtd_wa(dev))
- alignment = 64*1024;
-
- ret = i915_gem_object_pin_to_display_plane(obj, alignment, NULL);
- if (ret) {
- DRM_DEBUG_KMS("failed to move cursor bo into the GTT\n");
- intel_runtime_pm_put(dev_priv);
- goto fail_locked;
- }
-
- ret = i915_gem_object_put_fence(obj);
- if (ret) {
- DRM_DEBUG_KMS("failed to release fence for cursor");
- intel_runtime_pm_put(dev_priv);
- goto fail_unpin;
- }
-
- addr = i915_gem_obj_ggtt_offset(obj);
-
- intel_runtime_pm_put(dev_priv);
- } else {
- int align = IS_I830(dev) ? 16 * 1024 : 256;
- ret = i915_gem_object_attach_phys(obj, align);
- if (ret) {
- DRM_DEBUG_KMS("failed to attach phys object\n");
- goto fail_locked;
- }
- addr = obj->phys_handle->busaddr;
- }
-
- finish:
- if (intel_crtc->cursor_bo) {
- if (!INTEL_INFO(dev)->cursor_needs_physical)
- i915_gem_object_unpin_from_display_plane(intel_crtc->cursor_bo);
- }
-
- i915_gem_track_fb(intel_crtc->cursor_bo, obj,
- INTEL_FRONTBUFFER_CURSOR(pipe));
- mutex_unlock(&dev->struct_mutex);
-
- old_width = intel_crtc->cursor_width;
-
- intel_crtc->cursor_addr = addr;
- intel_crtc->cursor_bo = obj;
- intel_crtc->cursor_width = width;
- intel_crtc->cursor_height = height;
-
- if (intel_crtc->active) {
- if (old_width != width)
- intel_update_watermarks(crtc);
- intel_crtc_update_cursor(crtc, intel_crtc->cursor_bo != NULL);
-
- intel_frontbuffer_flip(dev, INTEL_FRONTBUFFER_CURSOR(pipe));
- }
-
- return 0;
-fail_unpin:
- i915_gem_object_unpin_from_display_plane(obj);
-fail_locked:
- mutex_unlock(&dev->struct_mutex);
- return ret;
-}
-