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drm: allow drm_atomic_print_state() to accept any drm_printer

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Currently drm_atomic_print_state() internally allocates and uses a
drm_info printer. Allow it to accept any drm_printer type so that
the API can be leveraged even for taking drm snapshot.

Rename the drm_atomic_print_state() to drm_atomic_print_new_state()
so that it reflects its functionality better.

changes in v5:
 - none

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Abhinav Kumar <abhinavk@codeaurora.org>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/1618606645-19695-2-git-send-email-abhinavk@codeaurora.org
Signed-off-by: Rob Clark <robdclark@chromium.org>
This commit is contained in:
Abhinav Kumar
2021-04-16 13:57:19 -07:00
committed by Rob Clark
parent f21c8a276c
commit a4324a7a1c
4 changed files with 30 additions and 7 deletions
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4
drivers/gpu/drm/drm_atomic_uapi.c
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@@ -2,6 +2,7 @@
* Copyright (C) 2014 Red Hat
* Copyright (C) 2014 Intel Corp.
* Copyright (C) 2018 Intel Corp.
* Copyright (c) 2020, 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"),
@@ -1321,6 +1322,7 @@ int drm_mode_atomic_ioctl(struct drm_device *dev,
struct drm_out_fence_state *fence_state;
int ret = 0;
unsigned int i, j, num_fences;
struct drm_printer p = drm_info_printer(dev->dev);
/* disallow for drivers not supporting atomic: */
if (!drm_core_check_feature(dev, DRIVER_ATOMIC))
@@ -1453,7 +1455,7 @@ retry:
ret = drm_atomic_nonblocking_commit(state);
} else {
if (drm_debug_enabled(DRM_UT_STATE))
drm_atomic_print_state(state);
drm_atomic_print_new_state(state, &p);
ret = drm_atomic_commit(state);
}