Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 9a11d2e7 authored by Gustavo Padovan's avatar Gustavo Padovan Committed by Dave Airlie
Browse files

drm/virtio: send vblank event after crtc updates 



virtio_gpu was failing to send vblank events when using the atomic IOCTL
with the DRM_MODE_PAGE_FLIP_EVENT flag set. This patch fixes each and
enables atomic pageflips updates.

Signed-off-by: default avatarGustavo Padovan <gustavo.padovan@collabora.co.uk>
Cc: stable@vger.kernel.org
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent 9dc0487d

drivers/gpu/drm/virtio/virtgpu_display.c

+12 −0
Original line number Diff line number Diff line
@@ -267,11 +267,23 @@ static int virtio_gpu_crtc_atomic_check(struct drm_crtc *crtc, 
	return 0;

}



static void virtio_gpu_crtc_atomic_flush(struct drm_crtc *crtc,

					 struct drm_crtc_state *old_state)

{

	unsigned long flags;



	spin_lock_irqsave(&crtc->dev->event_lock, flags);

	if (crtc->state->event)

		drm_crtc_send_vblank_event(crtc, crtc->state->event);

	spin_unlock_irqrestore(&crtc->dev->event_lock, flags);

}



static const struct drm_crtc_helper_funcs virtio_gpu_crtc_helper_funcs = {

	.enable        = virtio_gpu_crtc_enable,

	.disable       = virtio_gpu_crtc_disable,

	.mode_set_nofb = virtio_gpu_crtc_mode_set_nofb,

	.atomic_check  = virtio_gpu_crtc_atomic_check,

	.atomic_flush  = virtio_gpu_crtc_atomic_flush,

};



static void virtio_gpu_enc_mode_set(struct drm_encoder *encoder,