On Mon, Mar 3, 2014 at 2:06 PM, Rob Clark robdclark@gmail.com wrote:
On Mon, Mar 3, 2014 at 4:45 PM, Jesse Barnes jbarnes@virtuousgeek.org wrote:
On Mon, 3 Mar 2014 13:38:36 -0800 Stéphane Marchesin marcheu@chromium.org wrote:
Some drivers like exynos need the crtc to be able to disable the plane, so set it before calling disable_plane.
Signed-off-by: Stéphane Marchesin marcheu@chromium.org
drivers/gpu/drm/drm_crtc.c | 21 +++++++++++---------- 1 file changed, 11 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 3b7d32d..0943316 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -1947,10 +1947,21 @@ int drm_mode_setplane(struct drm_device *dev, void *data, } plane = obj_to_plane(obj);
obj = drm_mode_object_find(dev, plane_req->crtc_id,DRM_MODE_OBJECT_CRTC);if (!obj) {DRM_DEBUG_KMS("Unknown crtc ID %d\n",plane_req->crtc_id);ret = -ENOENT;goto out;}crtc = obj_to_crtc(obj);/* No fb means shut it down */ if (!plane_req->fb_id) { drm_modeset_lock_all(dev); old_fb = plane->fb;plane->crtc = crtc;just curious, but how is the plane ending up enabled *without* a crtc? That sounds a bit.. odd..
Yup it has a crtc, but the plane->crtc is set to NULL just before we call disable_plane(), and so disable_plane() can't rely on the crtc...
Stéphane
BR, -R
plane->funcs->disable_plane(plane); plane->crtc = NULL; plane->fb = NULL;@@ -1958,16 +1969,6 @@ int drm_mode_setplane(struct drm_device *dev, void *data, goto out; }
obj = drm_mode_object_find(dev, plane_req->crtc_id,DRM_MODE_OBJECT_CRTC);if (!obj) {DRM_DEBUG_KMS("Unknown crtc ID %d\n",plane_req->crtc_id);ret = -ENOENT;goto out;}crtc = obj_to_crtc(obj);fb = drm_framebuffer_lookup(dev, plane_req->fb_id); if (!fb) { DRM_DEBUG_KMS("Unknown framebuffer ID %d\n",I'm pretty sure this is ok since we don't have much userspace using this that might fail to pass in a crtc when shutting down a plane...
Reviewed-by: Jesse Barnes jbarnes@virtuousgeek.org
-- Jesse Barnes, Intel Open Source Technology Center _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/dri-devel