On 6/10/19 10:18 AM, Helen Koike wrote:
commit c16b85559dcfb5a348cc085a7b4c75ed49b05e2c upstream.
Async update callbacks are expected to set the old_fb in the new_state so prepare/cleanup framebuffers are balanced.
Calling drm_atomic_set_fb_for_plane() (which gets a reference of the new fb and put the old fb) is not required, as it's taken care by drm_mode_cursor_universal() when calling drm_atomic_helper_update_plane().
Cc: stable@vger.kernel.org # v4.19+ Fixes: 539c320bfa97 ("drm/vc4: update cursors asynchronously through atomic") Suggested-by: Boris Brezillon boris.brezillon@collabora.com Signed-off-by: Helen Koike helen.koike@collabora.com Reviewed-by: Boris Brezillon boris.brezillon@collabora.com Signed-off-by: Boris Brezillon boris.brezillon@collabora.com Link: https://patchwork.freedesktop.org/patch/msgid/20190603165610.24614-5-helen.k...
Hi,
This patch failed to apply on kernel stable v4.19, I'm re-sending it fixing the conflict.
fyi, this patch was already applied in other stable branches.
Thanks Helen
Thanks Helen
drivers/gpu/drm/vc4/vc4_plane.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/vc4/vc4_plane.c b/drivers/gpu/drm/vc4/vc4_plane.c index ab39315c9078..39e608271263 100644 --- a/drivers/gpu/drm/vc4/vc4_plane.c +++ b/drivers/gpu/drm/vc4/vc4_plane.c @@ -818,6 +818,7 @@ static void vc4_plane_atomic_async_update(struct drm_plane *plane, drm_atomic_set_fb_for_plane(plane->state, state->fb); }
- swap(plane->state->fb, state->fb); /* Set the cursor's position on the screen. This is the
- expected change from the drm_mode_cursor_universal()
- helper.