diff options
Diffstat (limited to 'drivers/gpu/drm/drm_atomic.c')
| -rw-r--r-- | drivers/gpu/drm/drm_atomic.c | 28 |
1 files changed, 23 insertions, 5 deletions
diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index 3ea2106c8d7d..c85dcfd69158 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -1,6 +1,7 @@ /* * Copyright (C) 2014 Red Hat * Copyright (C) 2014 Intel Corp. + * Copyright (c) 2020-2021, The Linux Foundation. All rights reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), @@ -1609,9 +1610,20 @@ commit: } EXPORT_SYMBOL(__drm_atomic_helper_set_config); -void drm_atomic_print_state(const struct drm_atomic_state *state) +/** + * drm_atomic_print_new_state - prints drm atomic state + * @state: atomic configuration to check + * @p: drm printer + * + * This functions prints the drm atomic state snapshot using the drm printer + * which is passed to it. This snapshot can be used for debugging purposes. + * + * Note that this function looks into the new state objects and hence its not + * safe to be used after the call to drm_atomic_helper_commit_hw_done(). + */ +void drm_atomic_print_new_state(const struct drm_atomic_state *state, + struct drm_printer *p) { - struct drm_printer p = drm_info_printer(state->dev->dev); struct drm_plane *plane; struct drm_plane_state *plane_state; struct drm_crtc *crtc; @@ -1620,17 +1632,23 @@ void drm_atomic_print_state(const struct drm_atomic_state *state) struct drm_connector_state *connector_state; int i; + if (!p) { + DRM_ERROR("invalid drm printer\n"); + return; + } + DRM_DEBUG_ATOMIC("checking %p\n", state); for_each_new_plane_in_state(state, plane, plane_state, i) - drm_atomic_plane_print_state(&p, plane_state); + drm_atomic_plane_print_state(p, plane_state); for_each_new_crtc_in_state(state, crtc, crtc_state, i) - drm_atomic_crtc_print_state(&p, crtc_state); + drm_atomic_crtc_print_state(p, crtc_state); for_each_new_connector_in_state(state, connector, connector_state, i) - drm_atomic_connector_print_state(&p, connector_state); + drm_atomic_connector_print_state(p, connector_state); } +EXPORT_SYMBOL(drm_atomic_print_new_state); static void __drm_state_dump(struct drm_device *dev, struct drm_printer *p, bool take_locks) |