Merge tag 'drm-intel-next-2025-06-18' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-next

drm/i915 feature pull for v6.17:

Features and functionality:
- Add support for DSC fractional link bpp on DP MST (Imre)
- Add support for simultaneous Panel Replay and Adaptive Sync (Jouni)
- Add support for PTL+ double buffered LUT registers (Chaitanya, Ville)
- Add PIPEDMC event handling in preparation for flip queue (Ville)

Refactoring and cleanups:
- Rename lots of DPLL interfaces to unify them (Suraj)
- Allocate struct intel_display dynamically (Jani)
- Abstract VLV IOSF sideband better (Jani)
- Use str_true_false() helper (Yumeng Fang)
- Refactor DSB code in preparation for flip queue (Ville)
- Use drm_modeset_lock_assert_held() instead of open coding (Luca)
- Remove unused arg from skl_scaler_get_filter_select() (Luca)
- Split out a separate display register header (Jani)
- Abstract DRAM detection better (Jani)
- Convert LPT/WPT SBI sideband to struct intel_display (Jani)

Fixes:
- Fix DSI HS command dispatch with forced pipeline flush (Gareth Yu)
- Fix BMG and LNL+ DP adaptive sync SDP programming (Ankit)
- Fix error path for xe display workqueue allocation (Haoxiang Li)
- Disable DP AUX access probe where not required (Imre)
- Fix DKL PHY access if the port is invalid (Luca)
- Fix PSR2_SU_STATUS access on ADL+ (Jouni)
- Add sanity checks for porch and sync on BXT/GLK DSI (Ville)

DRM core changes:
- Change AUX DPCD access probe address (Imre)
- Refactor EDID quirks, amd make them available to drivers (Imre)
- Add quirk for DPCD access probe (Imre)
- Add DPCD definitions for Panel Replay capabilities (Jouni)

Merges:
- Backmerges to sync with v6.15-rcs and v6.16-rc1 (Jani)

Signed-off-by: Dave Airlie <[email protected]>
From: Jani Nikula <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

1 files changed, 49 insertions, 30 deletions

diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
index 430ad4ef7146..8bee2f592ae7 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -37,6 +37,7 @@
 #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"
@@ -516,7 +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];
@@ -528,7 +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;
 }
 
@@ -536,7 +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;
 }
 
@@ -608,7 +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;
@@ -617,7 +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,
@@ -676,10 +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])
@@ -736,7 +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);
 }
@@ -1574,6 +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) {
@@ -1691,12 +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);
@@ -3916,7 +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");
 }
@@ -4021,24 +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",
@@ -4234,3 +4247,9 @@ bool intel_psr_needs_alpm(struct intel_dp *intel_dp, const struct intel_crtc_sta
 	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;
+}