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| author | Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> | 2024-02-13 00:51:59 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-06-27 14:52:15 +0300 |
| commit | 6e8f90b14803ce50c942371e250aec6c46fef8f3 (patch) | |
| tree | 4a4c0ad81b977da6e2a627e4daa8c0a3a53b4042 /drivers/gpu/drm/lima/lima_pp.c | |
| parent | b3fe23f80d3ccdf101d6ff1549a1fe1799619e0d (diff) | |
| download | linux-6e8f90b14803ce50c942371e250aec6c46fef8f3.tar.xz | |
drm/amd/display: Exit idle optimizations before HDCP execution
[ Upstream commit f30a3bea92bdab398531129d187629fb1d28f598 ]
[WHY]
PSP can access DCN registers during command submission and we need
to ensure that DCN is not in PG before doing so.
[HOW]
Add a callback to DM to lock and notify DC for idle optimization exit.
It can't be DC directly because of a potential race condition with the
link protection thread and the rest of DM operation.
Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/gpu/drm/lima/lima_pp.c')
0 files changed, 0 insertions, 0 deletions