Merge tag 'drm-intel-next-fixes-2022-10-06-1' of git://anongit.freedesktop.org/drm/drm-intel into drm-next

- Round to closest in g4x+ HDMI clock readout (Ville Syrjälä)
- Update MOCS table for EHL (Tejas Upadhyay)
- Fix PSR_IMR/IIR field handling (Jouni Högander)
- Fix watermark calculations for gen12+ RC CCS modifier (Ville Syrjälä)
- Fix watermark calculations for gen12+ MC CCS modifier (Ville Syrjälä)
- Fix watermark calculations for gen12+ CCS+CC modifier (Ville Syrjälä)
- Fix watermark calculations for DG2 CCS modifiers (Ville Syrjälä)
- Fix watermark calculations for DG2 CCS+CC modifier (Ville Syrjälä)
- Reject excessive dotclocks early (Ville Syrjälä)

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/Yz6rkXI9HKFUvtWK@tursulin-desk

4 files changed, 80 insertions, 34 deletions

diff --git a/drivers/gpu/drm/i915/display/g4x_hdmi.c b/drivers/gpu/drm/i915/display/g4x_hdmi.c
index 5fbd2ae95869..2b73f5ff0d02 100644
--- a/drivers/gpu/drm/i915/display/g4x_hdmi.c
+++ b/drivers/gpu/drm/i915/display/g4x_hdmi.c
@@ -120,7 +120,7 @@ static void intel_hdmi_get_config(struct intel_encoder *encoder,
 	pipe_config->hw.adjusted_mode.flags |= flags;
 
 	if ((tmp & SDVO_COLOR_FORMAT_MASK) == HDMI_COLOR_FORMAT_12bpc)
-		dotclock = pipe_config->port_clock * 2 / 3;
+		dotclock = DIV_ROUND_CLOSEST(pipe_config->port_clock * 2, 3);
 	else
 		dotclock = pipe_config->port_clock;
 
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index dd008ba8afe3..461c62c88413 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -8130,6 +8130,17 @@ static void intel_setup_outputs(struct drm_i915_private *dev_priv)
 	drm_helper_move_panel_connectors_to_head(&dev_priv->drm);
 }
 
+static int max_dotclock(struct drm_i915_private *i915)
+{
+	int max_dotclock = i915->max_dotclk_freq;
+
+	/* icl+ might use bigjoiner */
+	if (DISPLAY_VER(i915) >= 11)
+		max_dotclock *= 2;
+
+	return max_dotclock;
+}
+
 static enum drm_mode_status
 intel_mode_valid(struct drm_device *dev,
 		 const struct drm_display_mode *mode)
@@ -8167,6 +8178,13 @@ intel_mode_valid(struct drm_device *dev,
 			   DRM_MODE_FLAG_CLKDIV2))
 		return MODE_BAD;
 
+	/*
+	 * Reject clearly excessive dotclocks early to
+	 * avoid having to worry about huge integers later.
+	 */
+	if (mode->clock > max_dotclock(dev_priv))
+		return MODE_CLOCK_HIGH;
+
 	/* Transcoder timing limits */
 	if (DISPLAY_VER(dev_priv) >= 11) {
 		hdisplay_max = 16384;
diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
index 9def8d9fade6..d4cce627d7a8 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -116,34 +116,56 @@ static bool psr2_global_enabled(struct intel_dp *intel_dp)
 	}
 }
 
+static u32 psr_irq_psr_error_bit_get(struct intel_dp *intel_dp)
+{
+	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+
+	return DISPLAY_VER(dev_priv) >= 12 ? TGL_PSR_ERROR :
+		EDP_PSR_ERROR(intel_dp->psr.transcoder);
+}
+
+static u32 psr_irq_post_exit_bit_get(struct intel_dp *intel_dp)
+{
+	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+
+	return DISPLAY_VER(dev_priv) >= 12 ? TGL_PSR_POST_EXIT :
+		EDP_PSR_POST_EXIT(intel_dp->psr.transcoder);
+}
+
+static u32 psr_irq_pre_entry_bit_get(struct intel_dp *intel_dp)
+{
+	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+
+	return DISPLAY_VER(dev_priv) >= 12 ? TGL_PSR_PRE_ENTRY :
+		EDP_PSR_PRE_ENTRY(intel_dp->psr.transcoder);
+}
+
+static u32 psr_irq_mask_get(struct intel_dp *intel_dp)
+{
+	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+
+	return DISPLAY_VER(dev_priv) >= 12 ? TGL_PSR_MASK :
+		EDP_PSR_MASK(intel_dp->psr.transcoder);
+}
+
 static void psr_irq_control(struct intel_dp *intel_dp)
 {
 	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
-	enum transcoder trans_shift;
 	i915_reg_t imr_reg;
 	u32 mask, val;
 
-	/*
-	 * gen12+ has registers relative to transcoder and one per transcoder
-	 * using the same bit definition: handle it as TRANSCODER_EDP to force
-	 * 0 shift in bit definition
-	 */
-	if (DISPLAY_VER(dev_priv) >= 12) {
-		trans_shift = 0;
+	if (DISPLAY_VER(dev_priv) >= 12)
 		imr_reg = TRANS_PSR_IMR(intel_dp->psr.transcoder);
-	} else {
-		trans_shift = intel_dp->psr.transcoder;
+	else
 		imr_reg = EDP_PSR_IMR;
-	}
 
-	mask = EDP_PSR_ERROR(trans_shift);
+	mask = psr_irq_psr_error_bit_get(intel_dp);
 	if (intel_dp->psr.debug & I915_PSR_DEBUG_IRQ)
-		mask |= EDP_PSR_POST_EXIT(trans_shift) |
-			EDP_PSR_PRE_ENTRY(trans_shift);
+		mask |= psr_irq_post_exit_bit_get(intel_dp) |
+			psr_irq_pre_entry_bit_get(intel_dp);
 
-	/* Warning: it is masking/setting reserved bits too */
 	val = intel_de_read(dev_priv, imr_reg);
-	val &= ~EDP_PSR_TRANS_MASK(trans_shift);
+	val &= ~psr_irq_mask_get(intel_dp);
 	val |= ~mask;
 	intel_de_write(dev_priv, imr_reg, val);
 }
@@ -191,25 +213,21 @@ void intel_psr_irq_handler(struct intel_dp *intel_dp, u32 psr_iir)
 	enum transcoder cpu_transcoder = intel_dp->psr.transcoder;
 	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
 	ktime_t time_ns =  ktime_get();
-	enum transcoder trans_shift;
 	i915_reg_t imr_reg;
 
-	if (DISPLAY_VER(dev_priv) >= 12) {
-		trans_shift = 0;
+	if (DISPLAY_VER(dev_priv) >= 12)
 		imr_reg = TRANS_PSR_IMR(intel_dp->psr.transcoder);
-	} else {
-		trans_shift = intel_dp->psr.transcoder;
+	else
 		imr_reg = EDP_PSR_IMR;
-	}
 
-	if (psr_iir & EDP_PSR_PRE_ENTRY(trans_shift)) {
+	if (psr_iir & psr_irq_pre_entry_bit_get(intel_dp)) {
 		intel_dp->psr.last_entry_attempt = time_ns;
 		drm_dbg_kms(&dev_priv->drm,
 			    "[transcoder %s] PSR entry attempt in 2 vblanks\n",
 			    transcoder_name(cpu_transcoder));
 	}
 
-	if (psr_iir & EDP_PSR_POST_EXIT(trans_shift)) {
+	if (psr_iir & psr_irq_post_exit_bit_get(intel_dp)) {
 		intel_dp->psr.last_exit = time_ns;
 		drm_dbg_kms(&dev_priv->drm,
 			    "[transcoder %s] PSR exit completed\n",
@@ -226,7 +244,7 @@ void intel_psr_irq_handler(struct intel_dp *intel_dp, u32 psr_iir)
 		}
 	}
 
-	if (psr_iir & EDP_PSR_ERROR(trans_shift)) {
+	if (psr_iir & psr_irq_psr_error_bit_get(intel_dp)) {
 		u32 val;
 
 		drm_warn(&dev_priv->drm, "[transcoder %s] PSR aux error\n",
@@ -243,7 +261,7 @@ void intel_psr_irq_handler(struct intel_dp *intel_dp, u32 psr_iir)
 		 * or unset irq_aux_error.
 		 */
 		val = intel_de_read(dev_priv, imr_reg);
-		val |= EDP_PSR_ERROR(trans_shift);
+		val |= psr_irq_psr_error_bit_get(intel_dp);
 		intel_de_write(dev_priv, imr_reg, val);
 
 		schedule_work(&intel_dp->psr.work);
@@ -1194,14 +1212,12 @@ static bool psr_interrupt_error_check(struct intel_dp *intel_dp)
 	 * first time that PSR HW tries to activate so lets keep PSR disabled
 	 * to avoid any rendering problems.
 	 */
-	if (DISPLAY_VER(dev_priv) >= 12) {
+	if (DISPLAY_VER(dev_priv) >= 12)
 		val = intel_de_read(dev_priv,
 				    TRANS_PSR_IIR(intel_dp->psr.transcoder));
-		val &= EDP_PSR_ERROR(0);
-	} else {
+	else
 		val = intel_de_read(dev_priv, EDP_PSR_IIR);
-		val &= EDP_PSR_ERROR(intel_dp->psr.transcoder);
-	}
+	val &= psr_irq_psr_error_bit_get(intel_dp);
 	if (val) {
 		intel_dp->psr.sink_not_reliable = true;
 		drm_dbg_kms(&dev_priv->drm,
diff --git a/drivers/gpu/drm/i915/display/skl_watermark.c b/drivers/gpu/drm/i915/display/skl_watermark.c
index 01b0932757ed..18178b01375e 100644
--- a/drivers/gpu/drm/i915/display/skl_watermark.c
+++ b/drivers/gpu/drm/i915/display/skl_watermark.c
@@ -1710,10 +1710,22 @@ skl_compute_wm_params(const struct intel_crtc_state *crtc_state,
 		      modifier == I915_FORMAT_MOD_4_TILED ||
 		      modifier == I915_FORMAT_MOD_Yf_TILED ||
 		      modifier == I915_FORMAT_MOD_Y_TILED_CCS ||
-		      modifier == I915_FORMAT_MOD_Yf_TILED_CCS;
+		      modifier == I915_FORMAT_MOD_Yf_TILED_CCS ||
+		      modifier == I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS ||
+		      modifier == I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS ||
+		      modifier == I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS_CC ||
+		      modifier == I915_FORMAT_MOD_4_TILED_DG2_RC_CCS ||
+		      modifier == I915_FORMAT_MOD_4_TILED_DG2_MC_CCS ||
+		      modifier == I915_FORMAT_MOD_4_TILED_DG2_RC_CCS_CC;
 	wp->x_tiled = modifier == I915_FORMAT_MOD_X_TILED;
 	wp->rc_surface = modifier == I915_FORMAT_MOD_Y_TILED_CCS ||
-			 modifier == I915_FORMAT_MOD_Yf_TILED_CCS;
+			 modifier == I915_FORMAT_MOD_Yf_TILED_CCS ||
+			 modifier == I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS ||
+			 modifier == I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS ||
+			 modifier == I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS_CC ||
+			 modifier == I915_FORMAT_MOD_4_TILED_DG2_RC_CCS ||
+			 modifier == I915_FORMAT_MOD_4_TILED_DG2_MC_CCS ||
+			 modifier == I915_FORMAT_MOD_4_TILED_DG2_RC_CCS_CC;
 	wp->is_planar = intel_format_info_is_yuv_semiplanar(format, modifier);
 
 	wp->width = width;