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vmwgfx: Add page flip support

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Signed-off-by: Jakob Bornecrantz <jakob@vmware.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Jakob Bornecrantz
2012-02-09 16:56:45 +01:00
committed by Dave Airlie
parent bd49ae46f8
commit b5ec427e8d
3 changed files with 106 additions and 0 deletions
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64
drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
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@@ -1681,6 +1681,70 @@ int vmw_du_update_layout(struct vmw_private *dev_priv, unsigned num,
return 0;
}
int vmw_du_page_flip(struct drm_crtc *crtc,
struct drm_framebuffer *fb,
struct drm_pending_vblank_event *event)
{
struct vmw_private *dev_priv = vmw_priv(crtc->dev);
struct drm_framebuffer *old_fb = crtc->fb;
struct vmw_framebuffer *vfb = vmw_framebuffer_to_vfb(fb);
struct drm_file *file_priv = event->base.file_priv;
struct vmw_fence_obj *fence = NULL;
struct drm_clip_rect clips;
int ret;
/* require ScreenObject support for page flipping */
if (!dev_priv->sou_priv)
return -ENOSYS;
if (!vmw_kms_screen_object_flippable(dev_priv, crtc))
return -EINVAL;
crtc->fb = fb;
/* do a full screen dirty update */
clips.x1 = clips.y1 = 0;
clips.x2 = fb->width;
clips.y2 = fb->height;
if (vfb->dmabuf)
ret = do_dmabuf_dirty_sou(file_priv, dev_priv, vfb,
0, 0, &clips, 1, 1, &fence);
else
ret = do_surface_dirty_sou(dev_priv, file_priv, vfb,
0, 0, &clips, 1, 1, &fence);
if (ret != 0)
goto out_no_fence;
if (!fence) {
ret = -EINVAL;
goto out_no_fence;
}
ret = vmw_event_fence_action_queue(file_priv, fence,
&event->base,
&event->event.tv_sec,
&event->event.tv_usec,
true);
/*
* No need to hold on to this now. The only cleanup
* we need to do if we fail is unref the fence.
*/
vmw_fence_obj_unreference(&fence);
if (vmw_crtc_to_du(crtc)->is_implicit)
vmw_kms_screen_object_update_implicit_fb(dev_priv, crtc);
return ret;
out_no_fence:
crtc->fb = old_fb;
return ret;
}
void vmw_du_crtc_save(struct drm_crtc *crtc)
{
}