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| author | Shirish S <[email protected]> | 2017-09-26 06:56:41 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2017-09-26 22:17:44 +0000 |
| commit | 2c8f195adf21430e4e8bbd13942826ccf8fa225c (patch) | |
| tree | c6527a541d346cd8d65caedec6ea690d290ab848 /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | |
| parent | drm/amd/display: Remove unused dc_validate_guaranteed function (diff) | |
| download | kernel-2c8f195adf21430e4e8bbd13942826ccf8fa225c.tar.gz kernel-2c8f195adf21430e4e8bbd13942826ccf8fa225c.zip | |
drm/amd/display: don't clean-up bottom pipe plane_state
In the scenario of setting underlay, dc_validate_global_state()
is called after constructing the context with all
relevant bottom_pipe related configurations in dm_update_planes_state().
Currently, in dc_validate_global_state(), without checking for bottom_pipe's
existence, the pipe_ctx structure is initialised to 0, hence
nullyfying the plane_state of bottom_pipe which shall be accessed
in populate_initial_data() called from bw_calcs().
Due to this null pointer access kernel panics and leads to reboot
when underlay is tried to set.
This patch fixes the issue by no longer clearing the top_pipe. This
workaround is no longer required.
Signed-off-by: Shirish S <[email protected]>
Reviewed-by: Harry Wentland <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c')
0 files changed, 0 insertions, 0 deletions