1 files changed, 365 insertions, 89 deletions

diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
index eef48c014112..8bee2f592ae7 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -26,6 +26,7 @@
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_damage_helper.h>
 #include <drm/drm_debugfs.h>
+#include <drm/drm_vblank.h>
 
 #include "i915_drv.h"
 #include "i915_reg.h"
@@ -36,8 +37,10 @@
 #include "intel_ddi.h"
 #include "intel_de.h"
 #include "intel_display_irq.h"
+#include "intel_display_regs.h"
 #include "intel_display_rpm.h"
 #include "intel_display_types.h"
+#include "intel_dmc.h"
 #include "intel_dp.h"
 #include "intel_dp_aux.h"
 #include "intel_frontbuffer.h"
@@ -46,6 +49,7 @@
 #include "intel_psr_regs.h"
 #include "intel_snps_phy.h"
 #include "intel_vblank.h"
+#include "intel_vrr.h"
 #include "skl_universal_plane.h"
 
 /**
@@ -513,7 +517,7 @@ static u8 intel_dp_get_su_capability(struct intel_dp *intel_dp)
 
 	if (intel_dp->psr.sink_panel_replay_su_support)
 		drm_dp_dpcd_readb(&intel_dp->aux,
-				  DP_PANEL_PANEL_REPLAY_CAPABILITY,
+				  DP_PANEL_REPLAY_CAP_CAPABILITY,
 				  &su_capability);
 	else
 		su_capability = intel_dp->psr_dpcd[1];
@@ -525,7 +529,7 @@ static unsigned int
 intel_dp_get_su_x_granularity_offset(struct intel_dp *intel_dp)
 {
 	return intel_dp->psr.sink_panel_replay_su_support ?
-		DP_PANEL_PANEL_REPLAY_X_GRANULARITY :
+		DP_PANEL_REPLAY_CAP_X_GRANULARITY :
 		DP_PSR2_SU_X_GRANULARITY;
 }
 
@@ -533,7 +537,7 @@ static unsigned int
 intel_dp_get_su_y_granularity_offset(struct intel_dp *intel_dp)
 {
 	return intel_dp->psr.sink_panel_replay_su_support ?
-		DP_PANEL_PANEL_REPLAY_Y_GRANULARITY :
+		DP_PANEL_REPLAY_CAP_Y_GRANULARITY :
 		DP_PSR2_SU_Y_GRANULARITY;
 }
 
@@ -605,7 +609,8 @@ static void _panel_replay_init_dpcd(struct intel_dp *intel_dp)
 			return;
 		}
 
-		if (!(intel_dp->pr_dpcd & DP_PANEL_REPLAY_EARLY_TRANSPORT_SUPPORT)) {
+		if (!(intel_dp->pr_dpcd[INTEL_PR_DPCD_INDEX(DP_PANEL_REPLAY_CAP_SUPPORT)] &
+		      DP_PANEL_REPLAY_EARLY_TRANSPORT_SUPPORT)) {
 			drm_dbg_kms(display->drm,
 				    "Panel doesn't support early transport, eDP Panel Replay not possible\n");
 			return;
@@ -614,7 +619,8 @@ static void _panel_replay_init_dpcd(struct intel_dp *intel_dp)
 
 	intel_dp->psr.sink_panel_replay_support = true;
 
-	if (intel_dp->pr_dpcd & DP_PANEL_REPLAY_SU_SUPPORT)
+	if (intel_dp->pr_dpcd[INTEL_PR_DPCD_INDEX(DP_PANEL_REPLAY_CAP_SUPPORT)] &
+	    DP_PANEL_REPLAY_SU_SUPPORT)
 		intel_dp->psr.sink_panel_replay_su_support = true;
 
 	drm_dbg_kms(display->drm,
@@ -673,10 +679,12 @@ void intel_psr_init_dpcd(struct intel_dp *intel_dp)
 {
 	drm_dp_dpcd_read(&intel_dp->aux, DP_PSR_SUPPORT, intel_dp->psr_dpcd,
 			 sizeof(intel_dp->psr_dpcd));
-	drm_dp_dpcd_readb(&intel_dp->aux, DP_PANEL_REPLAY_CAP,
-			  &intel_dp->pr_dpcd);
 
-	if (intel_dp->pr_dpcd & DP_PANEL_REPLAY_SUPPORT)
+	drm_dp_dpcd_read(&intel_dp->aux, DP_PANEL_REPLAY_CAP_SUPPORT,
+			 &intel_dp->pr_dpcd, sizeof(intel_dp->pr_dpcd));
+
+	if (intel_dp->pr_dpcd[INTEL_PR_DPCD_INDEX(DP_PANEL_REPLAY_CAP_SUPPORT)] &
+	    DP_PANEL_REPLAY_SUPPORT)
 		_panel_replay_init_dpcd(intel_dp);
 
 	if (intel_dp->psr_dpcd[0])
@@ -733,7 +741,8 @@ static bool psr2_su_region_et_valid(struct intel_dp *intel_dp, bool panel_replay
 		return false;
 
 	return panel_replay ?
-		intel_dp->pr_dpcd & DP_PANEL_REPLAY_EARLY_TRANSPORT_SUPPORT :
+		intel_dp->pr_dpcd[INTEL_PR_DPCD_INDEX(DP_PANEL_REPLAY_CAP_SUPPORT)] &
+		DP_PANEL_REPLAY_EARLY_TRANSPORT_SUPPORT :
 		intel_dp->psr_dpcd[0] == DP_PSR2_WITH_Y_COORD_ET_SUPPORTED &&
 		psr2_su_region_et_global_enabled(intel_dp);
 }
@@ -794,31 +803,10 @@ static void _psr_enable_sink(struct intel_dp *intel_dp,
 	drm_dp_dpcd_writeb(&intel_dp->aux, DP_PSR_EN_CFG, val);
 }
 
-static void intel_psr_enable_sink_alpm(struct intel_dp *intel_dp,
-				       const struct intel_crtc_state *crtc_state)
-{
-	u8 val;
-
-	/*
-	 * eDP Panel Replay uses always ALPM
-	 * PSR2 uses ALPM but PSR1 doesn't
-	 */
-	if (!intel_dp_is_edp(intel_dp) || (!crtc_state->has_panel_replay &&
-					   !crtc_state->has_sel_update))
-		return;
-
-	val = DP_ALPM_ENABLE | DP_ALPM_LOCK_ERROR_IRQ_HPD_ENABLE;
-
-	if (crtc_state->has_panel_replay)
-		val |= DP_ALPM_MODE_AUX_LESS;
-
-	drm_dp_dpcd_writeb(&intel_dp->aux, DP_RECEIVER_ALPM_CONFIG, val);
-}
-
 static void intel_psr_enable_sink(struct intel_dp *intel_dp,
 				  const struct intel_crtc_state *crtc_state)
 {
-	intel_psr_enable_sink_alpm(intel_dp, crtc_state);
+	intel_alpm_enable_sink(intel_dp, crtc_state);
 
 	crtc_state->has_panel_replay ?
 		_panel_replay_enable_sink(intel_dp, crtc_state) :
@@ -905,6 +893,18 @@ static u8 psr_compute_idle_frames(struct intel_dp *intel_dp)
 	return idle_frames;
 }
 
+static bool is_dc5_dc6_blocked(struct intel_dp *intel_dp)
+{
+	struct intel_display *display = to_intel_display(intel_dp);
+	u32 current_dc_state = intel_display_power_get_current_dc_state(display);
+	struct drm_vblank_crtc *vblank = &display->drm->vblank[intel_dp->psr.pipe];
+
+	return (current_dc_state != DC_STATE_EN_UPTO_DC5 &&
+		current_dc_state != DC_STATE_EN_UPTO_DC6) ||
+		intel_dp->psr.active_non_psr_pipes ||
+		READ_ONCE(vblank->enabled);
+}
+
 static void hsw_activate_psr1(struct intel_dp *intel_dp)
 {
 	struct intel_display *display = to_intel_display(intel_dp);
@@ -933,6 +933,14 @@ static void hsw_activate_psr1(struct intel_dp *intel_dp)
 
 	intel_de_rmw(display, psr_ctl_reg(display, cpu_transcoder),
 		     ~EDP_PSR_RESTORE_PSR_ACTIVE_CTX_MASK, val);
+
+	/* Wa_16025596647 */
+	if ((DISPLAY_VER(display) == 20 ||
+	     IS_DISPLAY_VERx100_STEP(display, 3000, STEP_A0, STEP_B0)) &&
+	    is_dc5_dc6_blocked(intel_dp))
+		intel_dmc_start_pkgc_exit_at_start_of_undelayed_vblank(display,
+								       intel_dp->psr.pipe,
+								       true);
 }
 
 static u32 intel_psr2_get_tp_time(struct intel_dp *intel_dp)
@@ -1014,8 +1022,16 @@ static void hsw_activate_psr2(struct intel_dp *intel_dp)
 	enum transcoder cpu_transcoder = intel_dp->psr.transcoder;
 	u32 val = EDP_PSR2_ENABLE;
 	u32 psr_val = 0;
+	u8 idle_frames;
 
-	val |= EDP_PSR2_IDLE_FRAMES(psr_compute_idle_frames(intel_dp));
+	/* Wa_16025596647 */
+	if ((DISPLAY_VER(display) == 20 ||
+	     IS_DISPLAY_VERx100_STEP(display, 3000, STEP_A0, STEP_B0)) &&
+	    is_dc5_dc6_blocked(intel_dp))
+		idle_frames = 0;
+	else
+		idle_frames = psr_compute_idle_frames(intel_dp);
+	val |= EDP_PSR2_IDLE_FRAMES(idle_frames);
 
 	if (DISPLAY_VER(display) < 14 && !display->platform.alderlake_p)
 		val |= EDP_SU_TRACK_ENABLE;
@@ -1564,6 +1580,12 @@ static bool _psr_compute_config(struct intel_dp *intel_dp,
 	if (!CAN_PSR(intel_dp))
 		return false;
 
+	/*
+	 * Currently PSR doesn't work reliably with VRR enabled.
+	 */
+	if (crtc_state->vrr.enable)
+		return false;
+
 	entry_setup_frames = intel_psr_entry_setup_frames(intel_dp, adjusted_mode);
 
 	if (entry_setup_frames >= 0) {
@@ -1649,6 +1671,9 @@ void intel_psr_compute_config(struct intel_dp *intel_dp,
 {
 	struct intel_display *display = to_intel_display(intel_dp);
 	const struct drm_display_mode *adjusted_mode = &crtc_state->hw.adjusted_mode;
+	struct intel_atomic_state *state = to_intel_atomic_state(crtc_state->uapi.state);
+	struct intel_crtc *crtc;
+	u8 active_pipes = 0;
 
 	if (!psr_global_enabled(intel_dp)) {
 		drm_dbg_kms(display->drm, "PSR disabled by flag\n");
@@ -1678,12 +1703,6 @@ void intel_psr_compute_config(struct intel_dp *intel_dp,
 		return;
 	}
 
-	/*
-	 * Currently PSR/PR doesn't work reliably with VRR enabled.
-	 */
-	if (crtc_state->vrr.enable)
-		return;
-
 	crtc_state->has_panel_replay = _panel_replay_compute_config(intel_dp,
 								    crtc_state,
 								    conn_state);
@@ -1702,6 +1721,24 @@ void intel_psr_compute_config(struct intel_dp *intel_dp,
 		drm_dbg_kms(display->drm,
 			    "PSR disabled to workaround PSR FSM hang issue\n");
 	}
+
+	/* Rest is for Wa_16025596647 */
+	if (DISPLAY_VER(display) != 20 &&
+	    !IS_DISPLAY_VERx100_STEP(display, 3000, STEP_A0, STEP_B0))
+		return;
+
+	/* Not needed by Panel Replay  */
+	if (crtc_state->has_panel_replay)
+		return;
+
+	/* We ignore possible secondary PSR/Panel Replay capable eDP */
+	for_each_intel_crtc(display->drm, crtc)
+		active_pipes |= crtc->active ? BIT(crtc->pipe) : 0;
+
+	active_pipes = intel_calc_active_pipes(state, active_pipes);
+
+	crtc_state->active_non_psr_pipes = active_pipes &
+		~BIT(to_intel_crtc(crtc_state->uapi.crtc)->pipe);
 }
 
 void intel_psr_get_config(struct intel_encoder *encoder,
@@ -1893,9 +1930,6 @@ static void intel_psr_enable_source(struct intel_dp *intel_dp,
 			     intel_dp->psr.psr2_sel_fetch_enabled ?
 			     IGNORE_PSR2_HW_TRACKING : 0);
 
-	if (intel_dp_is_edp(intel_dp))
-		intel_alpm_configure(intel_dp, crtc_state);
-
 	/*
 	 * Wa_16013835468
 	 * Wa_14015648006
@@ -1930,6 +1964,14 @@ static void intel_psr_enable_source(struct intel_dp *intel_dp,
 			intel_de_rmw(display, CLKGATE_DIS_MISC, 0,
 				     CLKGATE_DIS_MISC_DMASC_GATING_DIS);
 	}
+
+	/* Wa_16025596647 */
+	if ((DISPLAY_VER(display) == 20 ||
+	     IS_DISPLAY_VERx100_STEP(display, 3000, STEP_A0, STEP_B0)) &&
+	    !intel_dp->psr.panel_replay_enabled)
+		intel_dmc_block_pkgc(display, intel_dp->psr.pipe, true);
+
+	intel_alpm_configure(intel_dp, crtc_state);
 }
 
 static bool psr_interrupt_error_check(struct intel_dp *intel_dp)
@@ -1985,6 +2027,7 @@ static void intel_psr_enable_locked(struct intel_dp *intel_dp,
 	intel_dp->psr.psr2_sel_fetch_cff_enabled = false;
 	intel_dp->psr.req_psr2_sdp_prior_scanline =
 		crtc_state->req_psr2_sdp_prior_scanline;
+	intel_dp->psr.active_non_psr_pipes = crtc_state->active_non_psr_pipes;
 
 	if (!psr_interrupt_error_check(intel_dp))
 		return;
@@ -1996,8 +2039,9 @@ static void intel_psr_enable_locked(struct intel_dp *intel_dp,
 			    intel_dp->psr.sel_update_enabled ? "2" : "1");
 
 	/*
-	 * Enabling here only for PSR. Panel Replay enable bit is already
-	 * written at this point. See
+	 * Enabling sink PSR/Panel Replay here only for PSR. Panel Replay enable
+	 * bit is already written at this point. Sink ALPM is enabled here for
+	 * PSR and Panel Replay. See
 	 * intel_psr_panel_replay_enable_sink. Modifiers/options:
 	 *  - Selective Update
 	 *  - Region Early Transport
@@ -2060,6 +2104,12 @@ static void intel_psr_exit(struct intel_dp *intel_dp)
 
 		drm_WARN_ON(display->drm, !(val & EDP_PSR2_ENABLE));
 	} else {
+		if (DISPLAY_VER(display) == 20 ||
+		    IS_DISPLAY_VERx100_STEP(display, 3000, STEP_A0, STEP_B0))
+			intel_dmc_start_pkgc_exit_at_start_of_undelayed_vblank(display,
+								       intel_dp->psr.pipe,
+								       false);
+
 		val = intel_de_rmw(display,
 				   psr_ctl_reg(display, cpu_transcoder),
 				   EDP_PSR_ENABLE, 0);
@@ -2133,16 +2183,8 @@ static void intel_psr_disable_locked(struct intel_dp *intel_dp)
 	if (intel_dp_is_edp(intel_dp))
 		intel_snps_phy_update_psr_power_state(&dp_to_dig_port(intel_dp)->base, false);
 
-	/* Panel Replay on eDP is always using ALPM aux less. */
-	if (intel_dp->psr.panel_replay_enabled && intel_dp_is_edp(intel_dp)) {
-		intel_de_rmw(display, ALPM_CTL(display, cpu_transcoder),
-			     ALPM_CTL_ALPM_ENABLE |
-			     ALPM_CTL_ALPM_AUX_LESS_ENABLE, 0);
-
-		intel_de_rmw(display,
-			     PORT_ALPM_CTL(cpu_transcoder),
-			     PORT_ALPM_CTL_ALPM_AUX_LESS_ENABLE, 0);
-	}
+	if (intel_dp->psr.panel_replay_enabled && intel_dp_is_edp(intel_dp))
+		intel_alpm_disable(intel_dp);
 
 	/* Disable PSR on Sink */
 	if (!intel_dp->psr.panel_replay_enabled) {
@@ -2153,12 +2195,19 @@ static void intel_psr_disable_locked(struct intel_dp *intel_dp)
 					   DP_RECEIVER_ALPM_CONFIG, 0);
 	}
 
+	/* Wa_16025596647 */
+	if ((DISPLAY_VER(display) == 20 ||
+	     IS_DISPLAY_VERx100_STEP(display, 3000, STEP_A0, STEP_B0)) &&
+	    !intel_dp->psr.panel_replay_enabled)
+		intel_dmc_block_pkgc(display, intel_dp->psr.pipe, false);
+
 	intel_dp->psr.enabled = false;
 	intel_dp->psr.panel_replay_enabled = false;
 	intel_dp->psr.sel_update_enabled = false;
 	intel_dp->psr.psr2_sel_fetch_enabled = false;
 	intel_dp->psr.su_region_et_enabled = false;
 	intel_dp->psr.psr2_sel_fetch_cff_enabled = false;
+	intel_dp->psr.active_non_psr_pipes = 0;
 }
 
 /**
@@ -2254,17 +2303,20 @@ out:
 }
 
 /**
- * intel_psr_needs_block_dc_vblank - Check if block dc entry is needed
+ * intel_psr_needs_vblank_notification - Check if PSR need vblank enable/disable
+ * notification.
  * @crtc_state: CRTC status
  *
  * We need to block DC6 entry in case of Panel Replay as enabling VBI doesn't
  * prevent it in case of Panel Replay. Panel Replay switches main link off on
  * DC entry. This means vblank interrupts are not fired and is a problem if
- * user-space is polling for vblank events.
+ * user-space is polling for vblank events. Also Wa_16025596647 needs
+ * information when vblank is enabled/disabled.
  */
-bool intel_psr_needs_block_dc_vblank(const struct intel_crtc_state *crtc_state)
+bool intel_psr_needs_vblank_notification(const struct intel_crtc_state *crtc_state)
 {
 	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+	struct intel_display *display = to_intel_display(crtc_state);
 	struct intel_encoder *encoder;
 
 	for_each_encoder_on_crtc(crtc->base.dev, &crtc->base, encoder) {
@@ -2275,8 +2327,15 @@ bool intel_psr_needs_block_dc_vblank(const struct intel_crtc_state *crtc_state)
 
 		intel_dp = enc_to_intel_dp(encoder);
 
-		if (intel_dp_is_edp(intel_dp) &&
-		    CAN_PANEL_REPLAY(intel_dp))
+		if (!intel_dp_is_edp(intel_dp))
+			continue;
+
+		if (CAN_PANEL_REPLAY(intel_dp))
+			return true;
+
+		if ((DISPLAY_VER(display) == 20 ||
+		     IS_DISPLAY_VERx100_STEP(display, 3000, STEP_A0, STEP_B0)) &&
+		    CAN_PSR(intel_dp))
 			return true;
 	}
 
@@ -2304,6 +2363,53 @@ void intel_psr_trigger_frame_change_event(struct intel_dsb *dsb,
 				   CURSURFLIVE(display, crtc->pipe), 0);
 }
 
+/**
+ * intel_psr_min_vblank_delay - Minimum vblank delay needed by PSR
+ * @crtc_state: the crtc state
+ *
+ * Return minimum vblank delay needed by PSR.
+ */
+int intel_psr_min_vblank_delay(const struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+
+	if (!crtc_state->has_psr)
+		return 0;
+
+	/* Wa_14015401596 */
+	if (intel_vrr_possible(crtc_state) && IS_DISPLAY_VER(display, 13, 14))
+		return 1;
+
+	/* Rest is for SRD_STATUS needed on LunarLake and onwards */
+	if (DISPLAY_VER(display) < 20)
+		return 0;
+
+	/*
+	 * Comment on SRD_STATUS register in Bspec for LunarLake and onwards:
+	 *
+	 * To deterministically capture the transition of the state machine
+	 * going from SRDOFFACK to IDLE, the delayed V. Blank should be at least
+	 * one line after the non-delayed V. Blank.
+	 *
+	 * Legacy TG: TRANS_SET_CONTEXT_LATENCY > 0
+	 * VRR TG: TRANS_VRR_CTL[ VRR Guardband ] < (TRANS_VRR_VMAX[ VRR Vmax ]
+	 * - TRANS_VTOTAL[ Vertical Active ])
+	 *
+	 * SRD_STATUS is used only by PSR1 on PantherLake.
+	 * SRD_STATUS is used by PSR1 and Panel Replay DP on LunarLake.
+	 */
+
+	if (DISPLAY_VER(display) >= 30 && (crtc_state->has_panel_replay ||
+					   crtc_state->has_sel_update))
+		return 0;
+	else if (DISPLAY_VER(display) < 30 && (crtc_state->has_sel_update ||
+					       intel_crtc_has_type(crtc_state,
+								   INTEL_OUTPUT_EDP)))
+		return 0;
+	else
+		return 1;
+}
+
 static u32 man_trk_ctl_enable_bit_get(struct intel_display *display)
 {
 	return display->platform.alderlake_p || DISPLAY_VER(display) >= 14 ? 0 :
@@ -3398,29 +3504,14 @@ static int psr_get_status_and_error_status(struct intel_dp *intel_dp,
 
 static void psr_alpm_check(struct intel_dp *intel_dp)
 {
-	struct intel_display *display = to_intel_display(intel_dp);
-	struct drm_dp_aux *aux = &intel_dp->aux;
 	struct intel_psr *psr = &intel_dp->psr;
-	u8 val;
-	int r;
 
 	if (!psr->sel_update_enabled)
 		return;
 
-	r = drm_dp_dpcd_readb(aux, DP_RECEIVER_ALPM_STATUS, &val);
-	if (r != 1) {
-		drm_err(display->drm, "Error reading ALPM status\n");
-		return;
-	}
-
-	if (val & DP_ALPM_LOCK_TIMEOUT_ERROR) {
+	if (intel_alpm_get_error(intel_dp)) {
 		intel_psr_disable_locked(intel_dp);
 		psr->sink_not_reliable = true;
-		drm_dbg_kms(display->drm,
-			    "ALPM lock timeout error, disabling PSR\n");
-
-		/* Clearing error */
-		drm_dp_dpcd_writeb(aux, DP_RECEIVER_ALPM_STATUS, val);
 	}
 }
 
@@ -3605,6 +3696,168 @@ void intel_psr_unlock(const struct intel_crtc_state *crtc_state)
 	}
 }
 
+/* Wa_16025596647 */
+static void intel_psr_apply_underrun_on_idle_wa_locked(struct intel_dp *intel_dp)
+{
+	struct intel_display *display = to_intel_display(intel_dp);
+	bool dc5_dc6_blocked;
+
+	if (!intel_dp->psr.active)
+		return;
+
+	dc5_dc6_blocked = is_dc5_dc6_blocked(intel_dp);
+
+	if (intel_dp->psr.sel_update_enabled)
+		psr2_program_idle_frames(intel_dp, dc5_dc6_blocked ? 0 :
+					 psr_compute_idle_frames(intel_dp));
+	else
+		intel_dmc_start_pkgc_exit_at_start_of_undelayed_vblank(display,
+								       intel_dp->psr.pipe,
+								       dc5_dc6_blocked);
+}
+
+static void psr_dc5_dc6_wa_work(struct work_struct *work)
+{
+	struct intel_display *display = container_of(work, typeof(*display),
+						     psr_dc5_dc6_wa_work);
+	struct intel_encoder *encoder;
+
+	for_each_intel_encoder_with_psr(display->drm, encoder) {
+		struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+
+		mutex_lock(&intel_dp->psr.lock);
+
+		if (intel_dp->psr.enabled && !intel_dp->psr.panel_replay_enabled)
+			intel_psr_apply_underrun_on_idle_wa_locked(intel_dp);
+
+		mutex_unlock(&intel_dp->psr.lock);
+	}
+}
+
+/**
+ * intel_psr_notify_dc5_dc6 - Notify PSR about enable/disable dc5/dc6
+ * @display: intel atomic state
+ *
+ * This is targeted for underrun on idle PSR HW bug (Wa_16025596647) to schedule
+ * psr_dc5_dc6_wa_work used for applying/removing the workaround.
+ */
+void intel_psr_notify_dc5_dc6(struct intel_display *display)
+{
+	if (DISPLAY_VER(display) != 20 &&
+	    !IS_DISPLAY_VERx100_STEP(display, 3000, STEP_A0, STEP_B0))
+		return;
+
+	schedule_work(&display->psr_dc5_dc6_wa_work);
+}
+
+/**
+ * intel_psr_dc5_dc6_wa_init - Init work for underrun on idle PSR HW bug wa
+ * @display: intel atomic state
+ *
+ * This is targeted for underrun on idle PSR HW bug (Wa_16025596647) to init
+ * psr_dc5_dc6_wa_work used for applying the workaround.
+ */
+void intel_psr_dc5_dc6_wa_init(struct intel_display *display)
+{
+	if (DISPLAY_VER(display) != 20 &&
+	    !IS_DISPLAY_VERx100_STEP(display, 3000, STEP_A0, STEP_B0))
+		return;
+
+	INIT_WORK(&display->psr_dc5_dc6_wa_work, psr_dc5_dc6_wa_work);
+}
+
+/**
+ * intel_psr_notify_pipe_change - Notify PSR about enable/disable of a pipe
+ * @state: intel atomic state
+ * @crtc: intel crtc
+ * @enable: enable/disable
+ *
+ * This is targeted for underrun on idle PSR HW bug (Wa_16025596647) to apply
+ * remove the workaround when pipe is getting enabled/disabled
+ */
+void intel_psr_notify_pipe_change(struct intel_atomic_state *state,
+				  struct intel_crtc *crtc, bool enable)
+{
+	struct intel_display *display = to_intel_display(state);
+	struct intel_encoder *encoder;
+
+	if (DISPLAY_VER(display) != 20 &&
+	    !IS_DISPLAY_VERx100_STEP(display, 3000, STEP_A0, STEP_B0))
+		return;
+
+	for_each_intel_encoder_with_psr(display->drm, encoder) {
+		struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+		u8 active_non_psr_pipes;
+
+		mutex_lock(&intel_dp->psr.lock);
+
+		if (!intel_dp->psr.enabled || intel_dp->psr.panel_replay_enabled)
+			goto unlock;
+
+		active_non_psr_pipes = intel_dp->psr.active_non_psr_pipes;
+
+		if (enable)
+			active_non_psr_pipes |= BIT(crtc->pipe);
+		else
+			active_non_psr_pipes &= ~BIT(crtc->pipe);
+
+		if (active_non_psr_pipes == intel_dp->psr.active_non_psr_pipes)
+			goto unlock;
+
+		if ((enable && intel_dp->psr.active_non_psr_pipes) ||
+		    (!enable && !intel_dp->psr.active_non_psr_pipes)) {
+			intel_dp->psr.active_non_psr_pipes = active_non_psr_pipes;
+			goto unlock;
+		}
+
+		intel_dp->psr.active_non_psr_pipes = active_non_psr_pipes;
+
+		intel_psr_apply_underrun_on_idle_wa_locked(intel_dp);
+unlock:
+		mutex_unlock(&intel_dp->psr.lock);
+	}
+}
+
+/**
+ * intel_psr_notify_vblank_enable_disable - Notify PSR about enable/disable of vblank
+ * @display: intel display struct
+ * @enable: enable/disable
+ *
+ * This is targeted for underrun on idle PSR HW bug (Wa_16025596647) to apply
+ * remove the workaround when vblank is getting enabled/disabled
+ */
+void intel_psr_notify_vblank_enable_disable(struct intel_display *display,
+					    bool enable)
+{
+	struct intel_encoder *encoder;
+
+	for_each_intel_encoder_with_psr(display->drm, encoder) {
+		struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+
+		mutex_lock(&intel_dp->psr.lock);
+		if (intel_dp->psr.panel_replay_enabled) {
+			mutex_unlock(&intel_dp->psr.lock);
+			break;
+		}
+
+		if (intel_dp->psr.enabled)
+			intel_psr_apply_underrun_on_idle_wa_locked(intel_dp);
+
+		mutex_unlock(&intel_dp->psr.lock);
+		return;
+	}
+
+	/*
+	 * NOTE: intel_display_power_set_target_dc_state is used
+	 * only by PSR * code for DC3CO handling. DC3CO target
+	 * state is currently disabled in * PSR code. If DC3CO
+	 * is taken into use we need take that into account here
+	 * as well.
+	 */
+	intel_display_power_set_target_dc_state(display, enable ? DC_STATE_DISABLE :
+						DC_STATE_EN_UPTO_DC6);
+}
+
 static void
 psr_source_status(struct intel_dp *intel_dp, struct seq_file *m)
 {
@@ -3669,7 +3922,8 @@ static void intel_psr_sink_capability(struct intel_dp *intel_dp,
 	seq_printf(m, ", Panel Replay = %s", str_yes_no(psr->sink_panel_replay_support));
 	seq_printf(m, ", Panel Replay Selective Update = %s",
 		   str_yes_no(psr->sink_panel_replay_su_support));
-	if (intel_dp->pr_dpcd & DP_PANEL_REPLAY_EARLY_TRANSPORT_SUPPORT)
+	if (intel_dp->pr_dpcd[INTEL_PR_DPCD_INDEX(DP_PANEL_REPLAY_CAP_SUPPORT)] &
+	    DP_PANEL_REPLAY_EARLY_TRANSPORT_SUPPORT)
 		seq_printf(m, " (Early Transport)");
 	seq_printf(m, "\n");
 }
@@ -3774,24 +4028,30 @@ static int intel_psr_status(struct seq_file *m, struct intel_dp *intel_dp)
 		int frame;
 
 		/*
-		 * Reading all 3 registers before hand to minimize crossing a
-		 * frame boundary between register reads
+		 * PSR2_SU_STATUS register has been tied-off since DG2/ADL-P
+		 * (it returns zeros only) and it has been removed on Xe2_LPD.
 		 */
-		for (frame = 0; frame < PSR2_SU_STATUS_FRAMES; frame += 3) {
-			val = intel_de_read(display,
-					    PSR2_SU_STATUS(display, cpu_transcoder, frame));
-			su_frames_val[frame / 3] = val;
-		}
+		if (DISPLAY_VER(display) < 13) {
+			/*
+			 * Reading all 3 registers before hand to minimize crossing a
+			 * frame boundary between register reads
+			 */
+			for (frame = 0; frame < PSR2_SU_STATUS_FRAMES; frame += 3) {
+				val = intel_de_read(display,
+						    PSR2_SU_STATUS(display, cpu_transcoder, frame));
+				su_frames_val[frame / 3] = val;
+			}
 
-		seq_puts(m, "Frame:\tPSR2 SU blocks:\n");
+			seq_puts(m, "Frame:\tPSR2 SU blocks:\n");
 
-		for (frame = 0; frame < PSR2_SU_STATUS_FRAMES; frame++) {
-			u32 su_blocks;
+			for (frame = 0; frame < PSR2_SU_STATUS_FRAMES; frame++) {
+				u32 su_blocks;
 
-			su_blocks = su_frames_val[frame / 3] &
-				    PSR2_SU_STATUS_MASK(frame);
-			su_blocks = su_blocks >> PSR2_SU_STATUS_SHIFT(frame);
-			seq_printf(m, "%d\t%d\n", frame, su_blocks);
+				su_blocks = su_frames_val[frame / 3] &
+					PSR2_SU_STATUS_MASK(frame);
+				su_blocks = su_blocks >> PSR2_SU_STATUS_SHIFT(frame);
+				seq_printf(m, "%d\t%d\n", frame, su_blocks);
+			}
 		}
 
 		seq_printf(m, "PSR2 selective fetch: %s\n",
@@ -3977,3 +4237,19 @@ void intel_psr_connector_debugfs_add(struct intel_connector *connector)
 		debugfs_create_file("i915_psr_status", 0444, root,
 				    connector, &i915_psr_status_fops);
 }
+
+bool intel_psr_needs_alpm(struct intel_dp *intel_dp, const struct intel_crtc_state *crtc_state)
+{
+	/*
+	 * eDP Panel Replay uses always ALPM
+	 * PSR2 uses ALPM but PSR1 doesn't
+	 */
+	return intel_dp_is_edp(intel_dp) && (crtc_state->has_sel_update ||
+					     crtc_state->has_panel_replay);
+}
+
+bool intel_psr_needs_alpm_aux_less(struct intel_dp *intel_dp,
+				   const struct intel_crtc_state *crtc_state)
+{
+	return intel_dp_is_edp(intel_dp) && crtc_state->has_panel_replay;
+}