From: Aric Cyr aric.cyr@amd.com
[ Upstream commit 6ad98e8aeb0106f453bb154933e8355849244990 ]
[Why] There is a window of time where we optimize bandwidth due to no streams enabled will enable PSTATE changing but HUBPs are not disabled yet. This results in underflow counter increasing in some hotplug scenarios.
[How] Set the optimize-bandwidth flag for later processing once all the HUBPs are properly disabled.
Signed-off-by: Aric Cyr aric.cyr@amd.com Acked-by: Bindu Ramamurthy bindu.r@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 --- drivers/gpu/drm/amd/display/dc/core/dc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index 58eb0d69873a..ccac86347315 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -2380,7 +2380,8 @@ static void commit_planes_do_stream_update(struct dc *dc, if (pipe_ctx->stream_res.audio && !dc->debug.az_endpoint_mute_only) pipe_ctx->stream_res.audio->funcs->az_disable(pipe_ctx->stream_res.audio);
- dc->hwss.optimize_bandwidth(dc, dc->current_state); + dc->optimized_required = true; + } else { if (dc->optimize_seamless_boot_streams == 0) dc->hwss.prepare_bandwidth(dc, dc->current_state);