summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/i915/display/intel_display.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_display.c')
-rw-r--r--drivers/gpu/drm/i915/display/intel_display.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 68e67dc2631f..039cf34b8f12 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -7330,6 +7330,21 @@ static void intel_atomic_dsb_finish(struct intel_atomic_state *state,
if (new_crtc_state->use_flipq)
intel_flipq_wait_dmc_halt(new_crtc_state->dsb_commit, crtc);
+ if (new_crtc_state->vrr.dc_balance.enable) {
+ /*
+ * Pause the DMC DC balancing for the remainder of
+ * the commit so that vmin/vmax won't change after
+ * we've baked them into the DSB vblank evasion
+ * commands.
+ *
+ * FIXME maybe need a small delay here to make sure
+ * DMC has finished updating the values? Or we need
+ * a better DMC<->driver protocol that gives is real
+ * guarantees about that...
+ */
+ intel_pipedmc_dcb_disable(NULL, crtc);
+ }
+
if (intel_crtc_needs_color_update(new_crtc_state))
intel_color_commit_noarm(new_crtc_state->dsb_commit,
new_crtc_state);
@@ -7383,6 +7398,10 @@ static void intel_atomic_dsb_finish(struct intel_atomic_state *state,
intel_dsb_wait_for_delayed_vblank(state, new_crtc_state->dsb_commit);
intel_vrr_check_push_sent(new_crtc_state->dsb_commit,
new_crtc_state);
+
+ if (new_crtc_state->vrr.dc_balance.enable)
+ intel_pipedmc_dcb_enable(new_crtc_state->dsb_commit, crtc);
+
intel_dsb_interrupt(new_crtc_state->dsb_commit);
}