1
0
Fork 0
mirror of synced 2025-03-06 20:59:54 +01:00
linux/drivers/gpu/drm/amd/display
Shirish S 2c8f195adf 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 <shirish.s@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-09-26 18:17:44 -04:00
..
amdgpu_dm drm/amd/display: Reduce DC chattiness 2017-09-26 18:17:43 -04:00
dc drm/amd/display: don't clean-up bottom pipe plane_state 2017-09-26 18:17:44 -04:00
include drm/amd/display: Reduce DC chattiness 2017-09-26 18:17:43 -04:00
modules drm/amd/display: Clean up flattening core_dc to dc 2017-09-26 18:17:07 -04:00
Kconfig drm/amd/display: Clean Kconfig formatting 2017-09-26 18:17:41 -04:00
Makefile drm/amd/dc: Add dc display driver (v2) 2017-09-26 17:01:32 -04:00
TODO drm/amd/display: Add a TODO list 2017-09-26 18:16:34 -04:00