lkml.org 
[lkml]   [2019]   [Aug]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v2] drm/virtio: add plane check
Date
Use drm_atomic_helper_check_plane_state()
to sanity check the plane state.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
drivers/gpu/drm/virtio/virtgpu_plane.c | 17 ++++++++++++++++-
1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_plane.c b/drivers/gpu/drm/virtio/virtgpu_plane.c
index a492ac3f4a7e..fe5efb2de90d 100644
--- a/drivers/gpu/drm/virtio/virtgpu_plane.c
+++ b/drivers/gpu/drm/virtio/virtgpu_plane.c
@@ -84,7 +84,22 @@ static const struct drm_plane_funcs virtio_gpu_plane_funcs = {
static int virtio_gpu_plane_atomic_check(struct drm_plane *plane,
struct drm_plane_state *state)
{
- return 0;
+ bool is_cursor = plane->type == DRM_PLANE_TYPE_CURSOR;
+ struct drm_crtc_state *crtc_state;
+ int ret;
+
+ if (!state->fb || !state->crtc)
+ return 0;
+
+ crtc_state = drm_atomic_get_crtc_state(state->state, state->crtc);
+ if (IS_ERR(crtc_state))
+ return PTR_ERR(crtc_state);
+
+ ret = drm_atomic_helper_check_plane_state(state, crtc_state,
+ DRM_PLANE_HELPER_NO_SCALING,
+ DRM_PLANE_HELPER_NO_SCALING,
+ is_cursor, true);
+ return ret;
}

static void virtio_gpu_primary_plane_update(struct drm_plane *plane,
--
2.18.1
\
 
 \ /
  Last update: 2019-08-22 11:48    [W:0.372 / U:0.140 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site