From: Jakob Bornecrantz <ja...@vmware.com>
Signed-off-by: Jakob Bornecrantz <jakob at vmware.com>
Reviewed-by: Thomas Hellstrom <thellstrom at vmware.com>
---
drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 64 ++++++++++++++++++++++++++++++++++
drivers/gpu/drm/vmwgfx/vmwgfx_kms.h | 8 ++++
drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c | 34 ++++++++++++++++++
3 files changed, 106 insertions(+), 0 deletions(-)
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
index 24efcae..2286d47 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@ -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)
{
}
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h
b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h
index a4f7f03..8184bc5 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h
@@ -121,6 +121,9 @@ struct vmw_display_unit {
* Shared display unit functions - vmwgfx_kms.c
*/
void vmw_display_unit_cleanup(struct vmw_display_unit *du);
+int vmw_du_page_flip(struct drm_crtc *crtc,
+ struct drm_framebuffer *fb,
+ struct drm_pending_vblank_event *event);
void vmw_du_crtc_save(struct drm_crtc *crtc);
void vmw_du_crtc_restore(struct drm_crtc *crtc);
void vmw_du_crtc_gamma_set(struct drm_crtc *crtc,
@@ -154,5 +157,10 @@ int vmw_kms_init_screen_object_display(struct vmw_private
*dev_priv);
int vmw_kms_close_screen_object_display(struct vmw_private *dev_priv);
int vmw_kms_sou_update_layout(struct vmw_private *dev_priv, unsigned num,
struct drm_vmw_rect *rects);
+bool vmw_kms_screen_object_flippable(struct vmw_private *dev_priv,
+ struct drm_crtc *crtc);
+void vmw_kms_screen_object_update_implicit_fb(struct vmw_private *dev_priv,
+ struct drm_crtc *crtc);
+
#endif
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c
b/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c
index 4defdcf..97aca0b 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c
@@ -394,6 +394,7 @@ static struct drm_crtc_funcs vmw_screen_object_crtc_funcs =
{
.gamma_set = vmw_du_crtc_gamma_set,
.destroy = vmw_sou_crtc_destroy,
.set_config = vmw_sou_crtc_set_config,
+ .page_flip = vmw_du_page_flip,
};
/*
@@ -535,3 +536,36 @@ int vmw_kms_close_screen_object_display(struct vmw_private
*dev_priv)
return 0;
}
+
+/**
+ * Returns if this unit can be page flipped.
+ * Must be called with the mode_config mutex held.
+ */
+bool vmw_kms_screen_object_flippable(struct vmw_private *dev_priv,
+ struct drm_crtc *crtc)
+{
+ struct vmw_screen_object_unit *sou = vmw_crtc_to_sou(crtc);
+
+ if (!sou->base.is_implicit)
+ return true;
+
+ if (dev_priv->sou_priv->num_implicit != 1)
+ return false;
+
+ return true;
+}
+
+/**
+ * Update the implicit fb to the current fb of this crtc.
+ * Must be called with the mode_config mutex held.
+ */
+void vmw_kms_screen_object_update_implicit_fb(struct vmw_private *dev_priv,
+ struct drm_crtc *crtc)
+{
+ struct vmw_screen_object_unit *sou = vmw_crtc_to_sou(crtc);
+
+ BUG_ON(!sou->base.is_implicit);
+
+ dev_priv->sou_priv->implicit_fb =
+ vmw_framebuffer_to_vfb(sou->base.crtc.fb);
+}
--
1.7.4.4
