From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Pull the underrun status sanitation into its own helper.
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_display.c | 65 +++++++++++---------
1 file changed, 37 insertions(+), 28 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 7d9c8aeef686..e38d0a85889b 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -9897,11 +9897,46 @@ static struct intel_connector *intel_encoder_find_connector(struct intel_encoder
return NULL;
}
+static void intel_sanitize_fifo_underrun_reporting(const struct intel_crtc_state *crtc_state)
+{
+ struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+ struct drm_i915_private *i915 = to_i915(crtc->base.dev);
+
+ if (!crtc_state->hw.active && !HAS_GMCH(i915))
+ return;
+
+ /*
+ * We start out with underrun reporting disabled to avoid races.
+ * For correct bookkeeping mark this on active crtcs.
+ *
+ * Also on gmch platforms we dont have any hardware bits to
+ * disable the underrun reporting. Which means we need to start
+ * out with underrun reporting disabled also on inactive pipes,
+ * since otherwise we'll complain about the garbage we read when
+ * e.g. coming up after runtime pm.
+ *
+ * No protection against concurrent access is required - at
+ * worst a fifo underrun happens which also sets this to false.
+ */
+ crtc->cpu_fifo_underrun_disabled = true;
+
+ /*
+ * We track the PCH trancoder underrun reporting state
+ * within the crtc. With crtc for pipe A housing the underrun
+ * reporting state for PCH transcoder A, crtc for pipe B housing
+ * it for PCH transcoder B, etc. LPT-H has only PCH transcoder A,
+ * and marking underrun reporting as disabled for the non-existing
+ * PCH transcoders B and C would prevent enabling the south
+ * error interrupt (see cpt_can_enable_serr_int()).
+ */
+ if (intel_has_pch_trancoder(i915, crtc->pipe))
+ crtc->pch_fifo_underrun_disabled = true;
+}
+
static void intel_sanitize_crtc(struct intel_crtc *crtc,
struct drm_modeset_acquire_ctx *ctx)
{
struct drm_device *dev = crtc->base.dev;
- struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_crtc_state *crtc_state = to_intel_crtc_state(crtc->base.state);
if (crtc_state->hw.active) {
@@ -9928,33 +9963,7 @@ static void intel_sanitize_crtc(struct intel_crtc *crtc,
!intel_crtc_is_bigjoiner_slave(crtc_state))
intel_crtc_disable_noatomic(crtc, ctx);
- if (crtc_state->hw.active || HAS_GMCH(dev_priv)) {
- /*
- * We start out with underrun reporting disabled to avoid races.
- * For correct bookkeeping mark this on active crtcs.
- *
- * Also on gmch platforms we dont have any hardware bits to
- * disable the underrun reporting. Which means we need to start
- * out with underrun reporting disabled also on inactive pipes,
- * since otherwise we'll complain about the garbage we read when
- * e.g. coming up after runtime pm.
- *
- * No protection against concurrent access is required - at
- * worst a fifo underrun happens which also sets this to false.
- */
- crtc->cpu_fifo_underrun_disabled = true;
- /*
- * We track the PCH trancoder underrun reporting state
- * within the crtc. With crtc for pipe A housing the underrun
- * reporting state for PCH transcoder A, crtc for pipe B housing
- * it for PCH transcoder B, etc. LPT-H has only PCH transcoder A,
- * and marking underrun reporting as disabled for the non-existing
- * PCH transcoders B and C would prevent enabling the south
- * error interrupt (see cpt_can_enable_serr_int()).
- */
- if (intel_has_pch_trancoder(dev_priv, crtc->pipe))
- crtc->pch_fifo_underrun_disabled = true;
- }
+ intel_sanitize_fifo_underrun_reporting(crtc_state);
}
static bool has_bogus_dpll_config(const struct intel_crtc_state *crtc_state)
--
2.35.1
