/**
* vmw_stdu_crtc_page_flip - Binds a buffer to a screen target
*
* @crtc: CRTC to attach FB to
* @fb: FB to attach
* @event: Event to be posted. This event should've been alloced
* using k[mz]alloc, and should've been completely initialized.
* @page_flip_flags: Input flags.
*
* If the STDU uses the same display and content buffers, i.e. a true flip,
* this function will replace the existing display buffer with the new content
* buffer.
*
* If the STDU uses different display and content buffers, i.e. a blit, then
* only the content buffer will be updated.
*
* RETURNS:
* 0 on success, error code on failure
*/
static int vmw_stdu_crtc_page_flip(struct drm_crtc *crtc,
struct drm_framebuffer *new_fb,
struct drm_pending_vblank_event *event,
uint32_t flags)
{
struct vmw_private *dev_priv = vmw_priv(crtc->dev);
struct vmw_screen_target_display_unit *stdu;
struct drm_vmw_rect vclips;
struct vmw_framebuffer *vfb = vmw_framebuffer_to_vfb(new_fb);
int ret;
dev_priv = vmw_priv(crtc->dev);
stdu = vmw_crtc_to_stdu(crtc);
if (!stdu->defined || !vmw_kms_crtc_flippable(dev_priv, crtc))
return -EINVAL;
ret = vmw_stdu_bind_fb(dev_priv, crtc, &crtc->mode, new_fb);
if (ret)
return ret;
if (stdu->base.is_implicit)
vmw_kms_update_implicit_fb(dev_priv, crtc);
vclips.x = crtc->x;
vclips.y = crtc->y;
vclips.w = crtc->mode.hdisplay;
vclips.h = crtc->mode.vdisplay;
if (vfb->dmabuf)
ret = vmw_kms_stdu_dma(dev_priv, NULL, vfb, NULL, NULL, &vclips,
1, 1, true, false);
else
ret = vmw_kms_stdu_surface_dirty(dev_priv, vfb, NULL, &vclips,
NULL, 0, 0, 1, 1, NULL);
if (ret)
return ret;
if (event) {
struct vmw_fence_obj *fence = NULL;
struct drm_file *file_priv = event->base.file_priv;
vmw_execbuf_fence_commands(NULL, dev_priv, &fence, NULL);
if (!fence)
return -ENOMEM;
ret = vmw_event_fence_action_queue(file_priv, fence,
&event->base,
&event->event.tv_sec,
&event->event.tv_usec,
true);
vmw_fence_obj_unreference(&fence);
} else {
vmw_fifo_flush(dev_priv, false);
}
return 0;
}
/**
* vmw_stdu_crtc_page_flip - Binds a buffer to a screen target
*
* @crtc: CRTC to attach FB to
* @fb: FB to attach
* @event: Event to be posted. This event should've been alloced
* using k[mz]alloc, and should've been completely initialized.
* @page_flip_flags: Input flags.
*
* If the STDU uses the same display and content buffers, i.e. a true flip,
* this function will replace the existing display buffer with the new content
* buffer.
*
* If the STDU uses different display and content buffers, i.e. a blit, then
* only the content buffer will be updated.
*
* RETURNS:
* 0 on success, error code on failure
*/
static int vmw_stdu_crtc_page_flip(struct drm_crtc *crtc,
struct drm_framebuffer *new_fb,
struct drm_pending_vblank_event *event,
uint32_t flags)
{
struct vmw_private *dev_priv = vmw_priv(crtc->dev);
struct vmw_screen_target_display_unit *stdu;
int ret;
if (crtc == NULL)
return -EINVAL;
dev_priv = vmw_priv(crtc->dev);
stdu = vmw_crtc_to_stdu(crtc);
crtc->primary->fb = new_fb;
stdu->content_fb = new_fb;
if (stdu->display_srf) {
/*
* If the display surface is the same as the content surface
* then remove the reference
*/
if (stdu->content_fb_type == SAME_AS_DISPLAY) {
if (stdu->defined) {
/* Unbind the current surface */
ret = vmw_stdu_bind_st(dev_priv, stdu, NULL);
if (unlikely(ret != 0))
goto err_out;
}
vmw_stdu_unpin_display(stdu);
stdu->display_srf = NULL;
}
}
if (!new_fb) {
/* Blanks the display */
(void) vmw_stdu_update_st(dev_priv, stdu);
return 0;
}
if (stdu->content_fb_type == SAME_AS_DISPLAY) {
stdu->display_srf = vmw_framebuffer_to_vfbs(new_fb)->surface;
ret = vmw_stdu_pin_display(stdu);
if (ret) {
stdu->display_srf = NULL;
goto err_out;
}
/* Bind display surface */
ret = vmw_stdu_bind_st(dev_priv, stdu, &stdu->display_srf->res);
if (unlikely(ret != 0))
goto err_unpin_display_and_content;
}
/* Update display surface: after this point everything is bound */
ret = vmw_stdu_update_st(dev_priv, stdu);
if (unlikely(ret != 0))
return ret;
if (event) {
struct vmw_fence_obj *fence = NULL;
struct drm_file *file_priv = event->base.file_priv;
vmw_execbuf_fence_commands(NULL, dev_priv, &fence, NULL);
if (!fence)
return -ENOMEM;
ret = vmw_event_fence_action_queue(file_priv, fence,
&event->base,
&event->event.tv_sec,
&event->event.tv_usec,
true);
vmw_fence_obj_unreference(&fence);
}
return ret;
err_unpin_display_and_content:
vmw_stdu_unpin_display(stdu);
err_out:
crtc->primary->fb = NULL;
stdu->content_fb = NULL;
return ret;
}
