From: Iswara Nagulendran <iswara.nagulendran@xxxxxxx>
[HOW&WHY]
EDP link detection must
be updated to support a primary EDP with a
link index of greater than 0.
* SWDEV-342936 - dc: DSC bringup for SAG 1.5
[WHY]
SmartAccess Graphics 1.5 (a.k.a SmartMux 1.5)
requires seamless switching between GPUs
with DSC enabled.
[HOW]
Moved DSC programming to
apply_single_control_ctx_to_hw before the stream
enablement logic to ensure the CRC checker provides valid
values for non-black frames
allowing the system to come out of forced PSR on
d2i.
Added additional logic to both generate a black
frame through setVisibility calls and keep track
of the CRCs values for this black frame when
coming out of forced PSR.
Updating logic for DalRegKey_DisableDSC to disable
DSC on EDP and all ports for systems.
[CLEANED]
dc: Moved DSC programming to before stream enablement
[HOW&WHY]
Moved DSC programming to
apply_single_control_ctx_to_hw before the stream
enablement logic.
Co-authored-by: sregolui <sregolui@xxxxxxx>
Reviewed-by: Jayendran Ramani <Jayendran.Ramani@xxxxxxx>
Reviewed-by: Harry Vanzylldejong <Harry.Vanzylldejong@xxxxxxx>
Acked-by: Brian Chang <Brian.Chang@xxxxxxx>
Signed-off-by: sregolui <sregolui@xxxxxxx>
Signed-off-by: Iswara Nagulendran <Iswara.Nagulendran@xxxxxxx>
---
drivers/gpu/drm/amd/display/dc/core/dc_link.c | 12 ------------
.../drm/amd/display/dc/dce110/dce110_hw_sequencer.c | 13 +++++++++++++
2 files changed, 13 insertions(+), 12 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
index 74db87f3dc6f..38fa63d43ad9 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
@@ -4303,18 +4303,6 @@ void core_link_enable_stream(
if (pipe_ctx->stream->dpms_off)
return;
- /* Have to setup DSC before DIG FE and BE are connected (which happens before the
- * link training). This is to make sure the bandwidth sent to DIG BE won't be
- * bigger than what the link and/or DIG BE can handle. VBID[6]/CompressedStream_flag
- * will be automatically set at a later time when the video is enabled
- * (DP_VID_STREAM_EN = 1).
- */
- if (pipe_ctx->stream->timing.flags.DSC) {
- if (dc_is_dp_signal(pipe_ctx->stream->signal) ||
- dc_is_virtual_signal(pipe_ctx->stream->signal))
- dp_set_dsc_enable(pipe_ctx, true);
- }
-
status = enable_link(state, pipe_ctx);
if (status != DC_OK) {
diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
index 801206aed63a..fe346e96c2d1 100644
--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
@@ -1577,6 +1577,19 @@ static enum dc_status apply_single_controller_ctx_to_hw(
if (dc_is_dp_signal(pipe_ctx->stream->signal))
dp_source_sequence_trace(link, DPCD_SOURCE_SEQ_AFTER_CONNECT_DIG_FE_OTG);
+ /* Have to setup DSC before DIG FE and BE are connected (which happens before the
+ * link training). This is to make sure the bandwidth sent to DIG BE won't be
+ * bigger than what the link and/or DIG BE can handle. VBID[6]/CompressedStream_flag
+ * will be automatically set at a later time when the video is enabled
+ * (DP_VID_STREAM_EN = 1).
+ */
+ if (pipe_ctx->stream->timing.flags.DSC) {
+ if (dc_is_dp_signal(pipe_ctx->stream->signal) ||
+ dc_is_virtual_signal(pipe_ctx->stream->signal))
+ dp_set_dsc_enable(pipe_ctx, true);
+
+ }
+
if (!stream->dpms_off) {
if (dc->hwss.update_phy_state)
dc->hwss.update_phy_state(context, pipe_ctx, TX_ON_SYMCLK_ON);
--
2.25.1
