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drm/amd/display: Fix DFPstate hang due to view port changed 

[Why]
Place the cursor in the center of screen between two pipes then
adjusting the viewport but cursour doesn't update cause DFPstate hang.

[How]
If viewport changed, update cursor as well.

Cc: stable@vger.kernel.org
Signed-off-by: Paul Hsieh <paul.hsieh@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Paul Hsieh 2020-08-05 17:28:37 +08:00 committed by Alex Deucher
parent ecfe7569a5
commit 9804ecbba8
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
View File

@ -1457,8 +1457,8 @@ static void dcn20_update_dchubp_dpp(
/* Any updates are handled in dc interface, just need to apply existing for plane enable */
if ((pipe_ctx->update_flags.bits.enable || pipe_ctx->update_flags.bits.opp_changed ||
pipe_ctx->update_flags.bits.scaler || pipe_ctx->update_flags.bits.viewport)
&& pipe_ctx->stream->cursor_attributes.address.quad_part != 0) {
pipe_ctx->update_flags.bits.scaler || viewport_changed == true) &&
pipe_ctx->stream->cursor_attributes.address.quad_part != 0) {
dc->hwss.set_cursor_position(pipe_ctx);
dc->hwss.set_cursor_attribute(pipe_ctx);