From: Helen Koike Date: Mon, 3 Jun 2019 16:56:07 +0000 (-0300) Subject: drm/amd: fix fb references in async update X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=332af874db929f92931727bfe191b2c666438c81;p=openwrt%2Fstaging%2Fblogic.git drm/amd: fix fb references in async update 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: # v4.20+ Fixes: 674e78acae0d ("drm/amd/display: Add fast path for cursor plane updates") Suggested-by: Boris Brezillon Signed-off-by: Helen Koike Reviewed-by: Nicholas Kazlauskas Signed-off-by: Boris Brezillon Link: https://patchwork.freedesktop.org/patch/msgid/20190603165610.24614-3-helen.koike@collabora.com --- diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index bcb1a93c0b4c..ab7c5c3004ee 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -4232,8 +4232,7 @@ static void dm_plane_atomic_async_update(struct drm_plane *plane, struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(new_state->state, plane); - if (plane->state->fb != new_state->fb) - drm_atomic_set_fb_for_plane(plane->state, new_state->fb); + swap(plane->state->fb, new_state->fb); plane->state->src_x = new_state->src_x; plane->state->src_y = new_state->src_y;