Store DC3CO eligibility in intel_dp->psr during
intel_psr_post_plane_update() so PSR configuration
can take DC3CO into account.

This will be used to control PSR2 parameters such as idle frames.

Changes in v2:
- Use intel_display_power_dc3co_allowed(display) instead
  of intel_dc3co_allowed(state)

Changes in v4:
- Update psr.dc3co_eligible before
  intel_psr_enable_locked() call (sashiko)

Signed-off-by: Dibin Moolakadan Subrahmanian 
<[email protected]>
---
 drivers/gpu/drm/i915/display/intel_display_types.h | 2 ++
 drivers/gpu/drm/i915/display/intel_psr.c           | 7 +++++++
 2 files changed, 9 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h 
b/drivers/gpu/drm/i915/display/intel_display_types.h
index 1cfc585530dc..c21f5d1e2003 100644
--- a/drivers/gpu/drm/i915/display/intel_display_types.h
+++ b/drivers/gpu/drm/i915/display/intel_display_types.h
@@ -1770,6 +1770,8 @@ struct intel_psr {
        ktime_t last_exit;
        bool sink_not_reliable;
        bool irq_aux_error;
+       /* DC3CO eligibility used to control PSR configuration */
+       bool dc3co_eligible;
        u16 su_w_granularity;
        u16 su_y_granularity;
        bool source_panel_replay_support;
diff --git a/drivers/gpu/drm/i915/display/intel_psr.c 
b/drivers/gpu/drm/i915/display/intel_psr.c
index 730ca7af7873..d4b294beecef 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -2300,6 +2300,7 @@ static void intel_psr_disable_locked(struct intel_dp 
*intel_dp)
        intel_dp->psr.psr2_sel_fetch_cff_enabled = false;
        intel_dp->psr.active_non_psr_pipes = 0;
        intel_dp->psr.pkg_c_latency_used = 0;
+       intel_dp->psr.dc3co_eligible = false;
 }
 
 /**
@@ -3090,10 +3091,14 @@ void intel_psr_post_plane_update(struct 
intel_atomic_state *state,
        const struct intel_crtc_state *crtc_state =
                intel_atomic_get_new_crtc_state(state, crtc);
        struct intel_encoder *encoder;
+       bool dc3co_eligible;
 
        if (!crtc_state->has_psr)
                return;
 
+       dc3co_eligible = intel_display_power_dc3co_allowed(display) &&
+                             intel_display_power_dc3co_supported(display);
+
        verify_panel_replay_dsc_state(crtc_state);
 
        for_each_intel_encoder_mask_with_psr(state->base.dev, encoder,
@@ -3121,6 +3126,8 @@ void intel_psr_post_plane_update(struct 
intel_atomic_state *state,
                        keep_disabled = true;
                }
 
+               intel_dp->psr.dc3co_eligible = dc3co_eligible;
+
                if (!psr->enabled && !keep_disabled)
                        intel_psr_enable_locked(intel_dp, crtc_state);
                else if (psr->enabled && !crtc_state->wm_level_disabled)
-- 
2.43.0

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