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| author | Nikola Cornij <nikola.cornij@amd.com> | 2019-10-16 14:34:15 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-11-13 15:29:43 -0500 |
| commit | a5132f9728dc7c310736b83422e93e0ad563a3b6 (patch) | |
| tree | 9eb9272363b577cd4b33d802859a00051e08983e /drivers/gpu/drm/amd/display/dc/virtual/virtual_stream_encoder.c | |
| parent | 4338ffa8df23d6665f53dd38da2e415940e3bf13 (diff) | |
| download | linux-a5132f9728dc7c310736b83422e93e0ad563a3b6.tar.gz linux-a5132f9728dc7c310736b83422e93e0ad563a3b6.tar.bz2 linux-a5132f9728dc7c310736b83422e93e0ad563a3b6.zip | |
drm/amd/display: Add a sanity check for DSC already enabled/disabled
[why]
If acquire/release DSC resource sequence is affected by a regression,
it can happen that the already-in-use DSC HW block is being wrongly
re-used for a different pipe. The reverse is also possible, i.e.
already-disabled DSC HW block could be disabled from other context.
[how]
Read back the enable state of DSC HW and report an error if duplicate
enable or disable was attempted.
Signed-off-by: Nikola Cornij <nikola.cornij@amd.com>
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/virtual/virtual_stream_encoder.c')
0 files changed, 0 insertions, 0 deletions