[PATCH v7 09/14] drm/i915/dip: Store SDP transmission lines in crtc_state

[Ankit Nautiyal <ankit.k.nautiyal@intel.com>]

Currently the driver only programs the transmission line for the
Adaptive-Sync SDP, while the hardware controls the transmission lines for
other SDPs.

Starting with Xe3p_lpd, the hardware allows the driver to program
transmission lines for additional DP SDPs. Prepare for this by adding
fields to struct intel_crtc_state to store SDP transmission lines, and
include them in pipe config comparison.

The SDP transmission line fields track vrr.vsync_start/vtotal, which are
allowed to change during a seamless LRR fastset. Guard their pipe config
comparison under !fastset, same as vrr.vsync_start/vsync_end, so a fastset
is not unnecessarily turned into a full modeset.

Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
---
 drivers/gpu/drm/i915/display/intel_display.c       | 5 +++++
 drivers/gpu/drm/i915/display/intel_display_types.h | 6 ++++++
 2 files changed, 11 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 5e8f2e48e95b..e052c5ad99d9 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -5603,6 +5603,11 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config,
 		PIPE_CONF_CHECK_I(vrr.dc_balance.max_decrease);
 		PIPE_CONF_CHECK_I(vrr.dc_balance.vblank_target);
 		PIPE_CONF_CHECK_I(dip.emp_as_sdp_tl);
+		PIPE_CONF_CHECK_I(dip.gmp_sdp_tl);
+		PIPE_CONF_CHECK_I(dip.pps_sdp_tl);
+		PIPE_CONF_CHECK_I(dip.vsc_sdp_tl);
+		PIPE_CONF_CHECK_I(dip.vsc_ext_sdp_tl);
+		PIPE_CONF_CHECK_I(dip.cmn_sdp_tl);
 	}
 
 	if (!fastset || intel_vrr_always_use_vrr_tg(display)) {
diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
index 334179685ea2..79f30660c2b6 100644
--- a/drivers/gpu/drm/i915/display/intel_display_types.h
+++ b/drivers/gpu/drm/i915/display/intel_display_types.h
@@ -1013,6 +1013,12 @@ struct intel_dip {
 	 * The programmed transmit line is (Vtotal - value)
 	 */
 	u16 emp_as_sdp_tl;
+	u16 gmp_sdp_tl;
+	u16 pps_sdp_tl;
+	u16 vsc_sdp_tl;
+	u16 vsc_ext_sdp_tl;
+	/* Common SDP Base transmission line (Xe3p_lpd+) */
+	u16 cmn_sdp_tl;
 };
 
 struct intel_crtc_state {
-- 
2.50.1