As vrr guardband calculation is dependent on modified
vblank start so better to compute late after all
vblank adjustement.

v1: Initial version.
v2: Split in a separate patch from panel-replay workaround. [Ankit]
v3: Add a function for late vrr related computation. [Ville]
v4: Use flipline instead of vrr.enable and some cosmetic changes. [Ville]

Signed-off-by: Animesh Manna <[email protected]>
---
 drivers/gpu/drm/i915/display/intel_display.c |  2 ++
 drivers/gpu/drm/i915/display/intel_vrr.c     | 13 +++++++++----
 drivers/gpu/drm/i915/display/intel_vrr.h     |  1 +
 3 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display.c 
b/drivers/gpu/drm/i915/display/intel_display.c
index f7667931f9d9..c59d7bffbf57 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -4836,6 +4836,8 @@ intel_modeset_pipe_config_late(struct intel_atomic_state 
*state,
        struct drm_connector *connector;
        int i;
 
+       intel_vrr_compute_config_late(crtc_state);
+
        for_each_new_connector_in_state(&state->base, connector,
                                        conn_state, i) {
                struct intel_encoder *encoder =
diff --git a/drivers/gpu/drm/i915/display/intel_vrr.c 
b/drivers/gpu/drm/i915/display/intel_vrr.c
index 9a51f5bac307..6c4af3d79761 100644
--- a/drivers/gpu/drm/i915/display/intel_vrr.c
+++ b/drivers/gpu/drm/i915/display/intel_vrr.c
@@ -239,11 +239,16 @@ intel_vrr_compute_config(struct intel_crtc_state 
*crtc_state,
                        (crtc_state->hw.adjusted_mode.crtc_vtotal -
                         crtc_state->hw.adjusted_mode.vsync_end);
        }
+}
+
+void intel_vrr_compute_config_late(struct intel_crtc_state *crtc_state)
+{
+       struct intel_display *display = to_intel_display(crtc_state);
+       struct drm_display_mode *adjusted_mode = &crtc_state->hw.adjusted_mode;
+
+       if (!crtc_state->vrr.flipline)
+               return;
 
-       /*
-        * For XE_LPD+, we use guardband and pipeline override
-        * is deprecated.
-        */
        if (DISPLAY_VER(display) >= 13) {
                crtc_state->vrr.guardband =
                        crtc_state->vrr.vmin + 1 - 
adjusted_mode->crtc_vblank_start;
diff --git a/drivers/gpu/drm/i915/display/intel_vrr.h 
b/drivers/gpu/drm/i915/display/intel_vrr.h
index 89937858200d..3127c94e9778 100644
--- a/drivers/gpu/drm/i915/display/intel_vrr.h
+++ b/drivers/gpu/drm/i915/display/intel_vrr.h
@@ -18,6 +18,7 @@ bool intel_vrr_is_in_range(struct intel_connector *connector, 
int vrefresh);
 void intel_vrr_check_modeset(struct intel_atomic_state *state);
 void intel_vrr_compute_config(struct intel_crtc_state *crtc_state,
                              struct drm_connector_state *conn_state);
+void intel_vrr_compute_config_late(struct intel_crtc_state *crtc_state);
 void intel_vrr_set_transcoder_timings(const struct intel_crtc_state 
*crtc_state);
 void intel_vrr_enable(const struct intel_crtc_state *crtc_state);
 void intel_vrr_send_push(const struct intel_crtc_state *crtc_state);
-- 
2.29.0

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