Merge tag 'drm-intel-next-2025-11-04' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-next

drm/i915 feature pull for v6.19:

Features and functionality:
- Enable LNL+ content adaptive sharpness filter (CASF) (Nemesa)
- Use optimized VRR guardband (Ankit, Ville)
- Enable Xe3p LT PHY (Suraj)
- Enable FBC support for Xe3p_LPD display (Sai Teja, Vinod)
- Specify DMC firmware for display version 30.02 (Dnyaneshwar)
- Report reason for disabling PSR to debugfs (Michał)
- Extend i915_display_info with Type-C port details (Khaled)
- Log DSI send packet sequence errors and contents

Refactoring and cleanups:
- Refactoring to prepare for VRR guardband optimization (Ankit)
- Abstract VRR live status wait (Ankit)
- Refactor VRR and DSB timing to handle Set Context Latency explicitly (Ankit)
- Helpers for prefill latency calculations (Ville)
- Refactor SKL+ watermark latency setup (Ville)
- VRR refactoring and cleanups (Ville)
- SKL+ universal plane cleanups (Ville)
- Decouple CDCLK from state->modeset refactor (Ville)
- Refactor VLV/CHV clock functions (Jani)
- Refactor fbdev handling (Jani)
- Call i915 and xe runtime PM from display via function pointers (Jouni)
- IRQ code refactoring  (Jani)
- Drop display dependency on i915 feature check macros (Jani)
- Refactor and unify i915 and xe stolen memory interfaces towards display (Jani)
- Switch to driver agnostic drm to display pointer chase (Jani)
- Use display version over graphics version in display code (Matt A)
- GVT cleanups (Jonathan, Andi)
- Rename a VLV clock function to unify (Michał)
- Explicitly sanitize DMC package header num entries (Luca)
- Remove redundant port clock check from ALPM (Jouni)
- Use sysfs_emit() instead of sprintf() in PMU sysfs (Madhur Kumar)
- Clean up C20 PHY PLL register macros (Imre, Mika))
- Abstract "address in MMIO table" helper for general use (Matt A)
- Improve VRR platform abstractions (Ville)
- Move towards more standard PCI PM code usage (Ville)
- Framebuffer refactoring (Ville)
- Drop display dependency on i915_utils.h (Jani)
- Include cleanups (Jani)

Fixes:
- Workaround docking station DSC issues with high pixel clock and bpp (Imre)
- Fix Panel Replay in DSC mode (Imre)
- Disable tracepoints for PREEMPT_RT as a workaround (Maarten)
- Fix intel_crtc_get_vblank_counter() on PREEMPT_RT (Maarten)
- Fix C10 PHY identification on PTL/WCL (Dnyaneshwar)
- Take AS SDP into account with optimized guardband (Jouni)
- Fix panic structure allocation memory leak (Jani)
- Adjust an FBC workaround platforms (Vinod)
- Add fallback for CDCLK selection (Naladala)
- Avoid using invalid transcoder in MST transport select (Suraj)
- Don't use cursor size reduction on display version 14+ (Nemesa)
- Fix C20 PHY PLL register programming (Imre, Mika)
- Fix PSR frontbuffer flush handling (Jouni)
- Store ALPM parameters in crtc state (Jouni)
- Defeature DRRS on LNL+ (Ville)
- Fix the scope of the large DRAM DIMM workaround (Ville)
- Fix PICA vs. AUX power ordering issue (Gustavo)
- Fix pixel rate for computing watermark line time (Ville)
- Fix framebuffer set_tiling vs. addfb race (Ville)
- DMC event handler fixes (Ville)

DRM Core:
- CRTC sharpness strength property (Nemesa)
- DPCD DSC quirk for Synaptics Panamera devices (Imre)
- Helpers to query the branch DSC max throughput/line-width (Imre)

Merges:
- Backmerge drm-next for v6.18-rc and to sync with drm-xe-next (Jani)

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Jani Nikula <jani.nikula@intel.com>
Link: https://patch.msgid.link/ec5a05f2df6d597a62033ee2d57225cce707b320@intel.com

drivers/gpu/drm/display/drm_dp_helper.c

@@ -2552,6 +2552,10 @@ static const struct dpcd_quirk dpcd_quirk_list[] = {
 	{ OUI(0x00, 0x0C, 0xE7), DEVICE_ID_ANY, false, BIT(DP_DPCD_QUIRK_HBLANK_EXPANSION_REQUIRES_DSC) },
 	/* Apple MacBookPro 2017 15 inch eDP Retina panel reports too low DP_MAX_LINK_RATE */
 	{ OUI(0x00, 0x10, 0xfa), DEVICE_ID(101, 68, 21, 101, 98, 97), false, BIT(DP_DPCD_QUIRK_CAN_DO_MAX_LINK_RATE_3_24_GBPS) },
+	/* Synaptics Panamera supports only a compressed bpp of 12 above 50% of its max DSC pixel throughput */
+	{ OUI(0x90, 0xCC, 0x24), DEVICE_ID('S', 'Y', 'N', 'A', 0x53, 0x22), true, BIT(DP_DPCD_QUIRK_DSC_THROUGHPUT_BPP_LIMIT) },
+	{ OUI(0x90, 0xCC, 0x24), DEVICE_ID('S', 'Y', 'N', 'A', 0x53, 0x31), true, BIT(DP_DPCD_QUIRK_DSC_THROUGHPUT_BPP_LIMIT) },
+	{ OUI(0x90, 0xCC, 0x24), DEVICE_ID('S', 'Y', 'N', 'A', 0x53, 0x33), true, BIT(DP_DPCD_QUIRK_DSC_THROUGHPUT_BPP_LIMIT) },
 };
 
 #undef OUI
@@ -2841,6 +2845,158 @@ int drm_dp_dsc_sink_supported_input_bpcs(const u8 dsc_dpcd[DP_DSC_RECEIVER_CAP_S
 }
 EXPORT_SYMBOL(drm_dp_dsc_sink_supported_input_bpcs);
 
+/*
+ * See DP Standard v2.1a 2.8.4 Minimum Slices/Display, Table 2-159 and
+ * Appendix L.1 Derivation of Slice Count Requirements.
+ */
+static int dsc_sink_min_slice_throughput(int peak_pixel_rate)
+{
+	if (peak_pixel_rate >= 4800000)
+		return 600000;
+	else if (peak_pixel_rate >= 2700000)
+		return 400000;
+	else
+		return 340000;
+}
+
+/**
+ * drm_dp_dsc_sink_max_slice_throughput() - Get a DSC sink's maximum pixel throughput per slice
+ * @dsc_dpcd: DSC sink's capabilities from DPCD
+ * @peak_pixel_rate: Cumulative peak pixel rate in kHz
+ * @is_rgb_yuv444: The mode is either RGB or YUV444
+ *
+ * Return the DSC sink device's maximum pixel throughput per slice, based on
+ * the device's @dsc_dpcd capabilities, the @peak_pixel_rate of the transferred
+ * stream(s) and whether the output format @is_rgb_yuv444 or yuv422/yuv420.
+ *
+ * Note that @peak_pixel_rate is the total pixel rate transferred to the same
+ * DSC/display sink. For instance to calculate a tile's slice count of an MST
+ * multi-tiled display sink (not considering here the required
+ * rounding/alignment of slice count)::
+ *
+ *   @peak_pixel_rate = tile_pixel_rate * tile_count
+ *   total_slice_count = @peak_pixel_rate / drm_dp_dsc_sink_max_slice_throughput(@peak_pixel_rate)
+ *   tile_slice_count = total_slice_count / tile_count
+ *
+ * Returns:
+ * The maximum pixel throughput per slice supported by the DSC sink device
+ * in kPixels/sec.
+ */
+int drm_dp_dsc_sink_max_slice_throughput(const u8 dsc_dpcd[DP_DSC_RECEIVER_CAP_SIZE],
+					 int peak_pixel_rate, bool is_rgb_yuv444)
+{
+	int throughput;
+	int delta = 0;
+	int base;
+
+	throughput = dsc_dpcd[DP_DSC_PEAK_THROUGHPUT - DP_DSC_SUPPORT];
+
+	if (is_rgb_yuv444) {
+		throughput = (throughput & DP_DSC_THROUGHPUT_MODE_0_MASK) >>
+			     DP_DSC_THROUGHPUT_MODE_0_SHIFT;
+
+		delta = ((dsc_dpcd[DP_DSC_RC_BUF_BLK_SIZE - DP_DSC_SUPPORT]) &
+			 DP_DSC_THROUGHPUT_MODE_0_DELTA_MASK) >>
+			DP_DSC_THROUGHPUT_MODE_0_DELTA_SHIFT;	/* in units of 2 MPixels/sec */
+		delta *= 2000;
+	} else {
+		throughput = (throughput & DP_DSC_THROUGHPUT_MODE_1_MASK) >>
+			     DP_DSC_THROUGHPUT_MODE_1_SHIFT;
+	}
+
+	switch (throughput) {
+	case 0:
+		return dsc_sink_min_slice_throughput(peak_pixel_rate);
+	case 1:
+		base = 340000;
+		break;
+	case 2 ... 14:
+		base = 400000 + 50000 * (throughput - 2);
+		break;
+	case 15:
+		base = 170000;
+		break;
+	}
+
+	return base + delta;
+}
+EXPORT_SYMBOL(drm_dp_dsc_sink_max_slice_throughput);
+
+static u8 dsc_branch_dpcd_cap(const u8 dpcd[DP_DSC_BRANCH_CAP_SIZE], int reg)
+{
+	return dpcd[reg - DP_DSC_BRANCH_OVERALL_THROUGHPUT_0];
+}
+
+/**
+ * drm_dp_dsc_branch_max_overall_throughput() - Branch device's max overall DSC pixel throughput
+ * @dsc_branch_dpcd: DSC branch capabilities from DPCD
+ * @is_rgb_yuv444: The mode is either RGB or YUV444
+ *
+ * Return the branch device's maximum overall DSC pixel throughput, based on
+ * the device's DPCD DSC branch capabilities, and whether the output
+ * format @is_rgb_yuv444 or yuv422/yuv420.
+ *
+ * Returns:
+ * - 0:   The maximum overall throughput capability is not indicated by
+ *        the device separately and it must be determined from the per-slice
+ *        max throughput (see @drm_dp_dsc_branch_slice_max_throughput())
+ *        and the maximum slice count supported by the device.
+ * - > 0: The maximum overall DSC pixel throughput supported by the branch
+ *        device in kPixels/sec.
+ */
+int drm_dp_dsc_branch_max_overall_throughput(const u8 dsc_branch_dpcd[DP_DSC_BRANCH_CAP_SIZE],
+					     bool is_rgb_yuv444)
+{
+	int throughput;
+
+	if (is_rgb_yuv444)
+		throughput = dsc_branch_dpcd_cap(dsc_branch_dpcd,
+						 DP_DSC_BRANCH_OVERALL_THROUGHPUT_0);
+	else
+		throughput = dsc_branch_dpcd_cap(dsc_branch_dpcd,
+						 DP_DSC_BRANCH_OVERALL_THROUGHPUT_1);
+
+	switch (throughput) {
+	case 0:
+		return 0;
+	case 1:
+		return 680000;
+	default:
+		return 600000 + 50000 * throughput;
+	}
+}
+EXPORT_SYMBOL(drm_dp_dsc_branch_max_overall_throughput);
+
+/**
+ * drm_dp_dsc_branch_max_line_width() - Branch device's max DSC line width
+ * @dsc_branch_dpcd: DSC branch capabilities from DPCD
+ *
+ * Return the branch device's maximum overall DSC line width, based on
+ * the device's @dsc_branch_dpcd capabilities.
+ *
+ * Returns:
+ * - 0:        The maximum line width is not indicated by the device
+ *             separately and it must be determined from the maximum
+ *             slice count and slice-width supported by the device.
+ * - %-EINVAL: The device indicates an invalid maximum line width
+ *             (< 5120 pixels).
+ * - >= 5120:  The maximum line width in pixels.
+ */
+int drm_dp_dsc_branch_max_line_width(const u8 dsc_branch_dpcd[DP_DSC_BRANCH_CAP_SIZE])
+{
+	int line_width = dsc_branch_dpcd_cap(dsc_branch_dpcd, DP_DSC_BRANCH_MAX_LINE_WIDTH);
+
+	switch (line_width) {
+	case 0:
+		return 0;
+	case 1 ... 15:
+		return -EINVAL;
+	default:
+		return line_width * 320;
+	}
+}
+EXPORT_SYMBOL(drm_dp_dsc_branch_max_line_width);
+
 static int drm_dp_read_lttpr_regs(struct drm_dp_aux *aux,
 				  const u8 dpcd[DP_RECEIVER_CAP_SIZE], int address,
 				  u8 *buf, int buf_size)

drivers/gpu/drm/drm_atomic_uapi.c

@@ -419,6 +419,8 @@ static int drm_atomic_crtc_set_property(struct drm_crtc *crtc,
 		set_out_fence_for_crtc(state->state, crtc, fence_ptr);
 	} else if (property == crtc->scaling_filter_property) {
 		state->scaling_filter = val;
+	} else if (property == crtc->sharpness_strength_property) {
+		state->sharpness_strength = val;
 	} else if (crtc->funcs->atomic_set_property) {
 		return crtc->funcs->atomic_set_property(crtc, state, property, val);
 	} else {
@@ -456,6 +458,8 @@ drm_atomic_crtc_get_property(struct drm_crtc *crtc,
 		*val = 0;
 	else if (property == crtc->scaling_filter_property)
 		*val = state->scaling_filter;
+	else if (property == crtc->sharpness_strength_property)
+		*val = state->sharpness_strength;
 	else if (crtc->funcs->atomic_get_property)
 		return crtc->funcs->atomic_get_property(crtc, state, property, val);
 	else {

drivers/gpu/drm/drm_crtc.c

@@ -229,6 +229,25 @@ struct dma_fence *drm_crtc_create_fence(struct drm_crtc *crtc)
  * 		Driver's default scaling filter
  * 	Nearest Neighbor:
  * 		Nearest Neighbor scaling filter
+ * SHARPNESS_STRENGTH:
+ *	Atomic property for setting the sharpness strength/intensity by userspace.
+ *
+ *	The value of this property is set as an integer value ranging
+ *	from 0 - 255 where:
+ *
+ *	0: Sharpness feature is disabled(default value).
+ *
+ *	1: Minimum sharpness.
+ *
+ *	255: Maximum sharpness.
+ *
+ *	User can gradually increase or decrease the sharpness level and can
+ *	set the optimum value depending on content.
+ *	This value will be passed to kernel through the UAPI.
+ *	The setting of this property does not require modeset.
+ *	The sharpness effect takes place post blending on the final composed output.
+ *	If the feature is disabled, the content remains same without any sharpening effect
+ *	and when this feature is applied, it enhances the clarity of the content.
  */
 
 __printf(6, 0)
@@ -940,6 +959,22 @@ int drm_crtc_create_scaling_filter_property(struct drm_crtc *crtc,
 }
 EXPORT_SYMBOL(drm_crtc_create_scaling_filter_property);
 
+int drm_crtc_create_sharpness_strength_property(struct drm_crtc *crtc)
+{
+	struct drm_device *dev = crtc->dev;
+	struct drm_property *prop =
+		drm_property_create_range(dev, 0, "SHARPNESS_STRENGTH", 0, 255);
+
+	if (!prop)
+		return -ENOMEM;
+
+	crtc->sharpness_strength_property = prop;
+	drm_object_attach_property(&crtc->base, prop, 0);
+
+	return 0;
+}
+EXPORT_SYMBOL(drm_crtc_create_sharpness_strength_property);
+
 /**
  * drm_crtc_in_clone_mode - check if the given CRTC state is in clone mode
  *

drivers/gpu/drm/i915/Makefile

@@ -13,6 +13,11 @@ subdir-ccflags-$(CONFIG_DRM_I915_WERROR) += -Werror
 # drivers. Define I915 when building i915.
 subdir-ccflags-y += -DI915
 
+# FIXME: Disable tracepoints on i915 for PREEMPT_RT, unfortunately
+# it's an all or nothing flag. You cannot selectively disable
+# only some tracepoints.
+subdir-ccflags-$(CONFIG_PREEMPT_RT) += -DNOTRACE
+
 subdir-ccflags-y += -I$(src)
 
 # Please keep these build lists sorted!
@@ -26,6 +31,7 @@ i915-y += \
 	i915_ioctl.o \
 	i915_irq.o \
 	i915_mitigations.o \
+	i915_mmio_range.o \
 	i915_module.o \
 	i915_params.o \
 	i915_pci.o \
@@ -228,6 +234,7 @@ i915-y += \
 	display/intel_bios.o \
 	display/intel_bo.o \
 	display/intel_bw.o \
+	display/intel_casf.o \
 	display/intel_cdclk.o \
 	display/intel_cmtg.o \
 	display/intel_color.o \
@@ -236,6 +243,7 @@ i915-y += \
 	display/intel_crtc.o \
 	display/intel_crtc_state_dump.o \
 	display/intel_cursor.o \
+	display/intel_dbuf_bw.o \
 	display/intel_display.o \
 	display/intel_display_conversion.o \
 	display/intel_display_driver.o \
@@ -248,6 +256,7 @@ i915-y += \
 	display/intel_display_rpm.o \
 	display/intel_display_rps.o \
 	display/intel_display_snapshot.o \
+	display/intel_display_utils.o \
 	display/intel_display_wa.o \
 	display/intel_dmc.o \
 	display/intel_dmc_wl.o \
@@ -297,9 +306,11 @@ i915-y += \
 	display/intel_vblank.o \
 	display/intel_vga.o \
 	display/intel_wm.o \
+	display/skl_prefill.o \
 	display/skl_scaler.o \
 	display/skl_universal_plane.o \
 	display/skl_watermark.o \
+	display/vlv_clock.o \
 	display/vlv_sideband.o
 i915-$(CONFIG_ACPI) += \
 	display/intel_acpi.o \
@@ -346,6 +357,7 @@ i915-y += \
 	display/intel_gmbus.o \
 	display/intel_hdmi.o \
 	display/intel_lspcon.o \
+	display/intel_lt_phy.o \
 	display/intel_lvds.o \
 	display/intel_panel.o \
 	display/intel_pfit.o \

drivers/gpu/drm/i915/display/g4x_dp.c

@@ -11,7 +11,6 @@
 
 #include "g4x_dp.h"
 #include "i915_reg.h"
-#include "i915_utils.h"
 #include "intel_audio.h"
 #include "intel_backlight.h"
 #include "intel_connector.h"
@@ -20,6 +19,7 @@
 #include "intel_display_power.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dp.h"
 #include "intel_dp_aux.h"
 #include "intel_dp_link_training.h"

drivers/gpu/drm/i915/display/hsw_ips.c

@@ -191,45 +191,46 @@ bool hsw_crtc_supports_ips(struct intel_crtc *crtc)
 
 static bool hsw_crtc_state_ips_capable(const struct intel_crtc_state *crtc_state)
 {
-	struct intel_display *display = to_intel_display(crtc_state);
 	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
 
-	/* IPS only exists on ULT machines and is tied to pipe A. */
 	if (!hsw_crtc_supports_ips(crtc))
 		return false;
 
-	if (!display->params.enable_ips)
-		return false;
-
 	if (crtc_state->pipe_bpp > 24)
 		return false;
 
-	/*
-	 * We compare against max which means we must take
-	 * the increased cdclk requirement into account when
-	 * calculating the new cdclk.
-	 *
-	 * Should measure whether using a lower cdclk w/o IPS
-	 */
-	if (display->platform.broadwell &&
-	    crtc_state->pixel_rate > display->cdclk.max_cdclk_freq * 95 / 100)
-		return false;
-
 	return true;
 }
 
+static int _hsw_ips_min_cdclk(const struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+
+	if (display->platform.broadwell)
+		return DIV_ROUND_UP(crtc_state->pixel_rate * 100, 95);
+
+	/* no IPS specific limits to worry about */
+	return 0;
+}
+
 int hsw_ips_min_cdclk(const struct intel_crtc_state *crtc_state)
 {
 	struct intel_display *display = to_intel_display(crtc_state);
-
+	int min_cdclk;
-	if (!display->platform.broadwell)
-		return 0;
 
 	if (!hsw_crtc_state_ips_capable(crtc_state))
 		return 0;
 
-	/* pixel rate mustn't exceed 95% of cdclk with IPS on BDW */
+	min_cdclk = _hsw_ips_min_cdclk(crtc_state);
-	return DIV_ROUND_UP(crtc_state->pixel_rate * 100, 95);
+
+	/*
+	 * Do not ask for more than the max CDCLK frequency,
+	 * if that is not enough IPS will simply not be used.
+	 */
+	if (min_cdclk > display->cdclk.max_cdclk_freq)
+		return 0;
+
+	return min_cdclk;
 }
 
 int hsw_ips_compute_config(struct intel_atomic_state *state,
@@ -244,6 +245,12 @@ int hsw_ips_compute_config(struct intel_atomic_state *state,
 	if (!hsw_crtc_state_ips_capable(crtc_state))
 		return 0;
 
+	if (_hsw_ips_min_cdclk(crtc_state) > display->cdclk.max_cdclk_freq)
+		return 0;
+
+	if (!display->params.enable_ips)
+		return 0;
+
 	/*
 	 * When IPS gets enabled, the pipe CRC changes. Since IPS gets
 	 * enabled and disabled dynamically based on package C states,
@@ -257,18 +264,6 @@ int hsw_ips_compute_config(struct intel_atomic_state *state,
 	if (!(crtc_state->active_planes & ~BIT(PLANE_CURSOR)))
 		return 0;
 
-	if (display->platform.broadwell) {
-		const struct intel_cdclk_state *cdclk_state;
-
-		cdclk_state = intel_atomic_get_cdclk_state(state);
-		if (IS_ERR(cdclk_state))
-			return PTR_ERR(cdclk_state);
-
-		/* pixel rate mustn't exceed 95% of cdclk with IPS on BDW */
-		if (crtc_state->pixel_rate > intel_cdclk_logical(cdclk_state) * 95 / 100)
-			return 0;
-	}
-
 	crtc_state->ips_enabled = true;
 
 	return 0;

drivers/gpu/drm/i915/display/i9xx_plane.c

@@ -11,7 +11,6 @@
 #include <drm/drm_print.h>
 
 #include "i915_reg.h"
-#include "i915_utils.h"
 #include "i9xx_plane.h"
 #include "i9xx_plane_regs.h"
 #include "intel_atomic.h"
@@ -19,6 +18,7 @@
 #include "intel_display_irq.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_fb.h"
 #include "intel_fbc.h"
 #include "intel_frontbuffer.h"

drivers/gpu/drm/i915/display/i9xx_wm.c

@@ -2295,12 +2295,11 @@ static void i9xx_update_wm(struct intel_display *display)
 
 	crtc = single_enabled_crtc(display);
 	if (display->platform.i915gm && crtc) {
-		struct drm_gem_object *obj;
+		const struct drm_framebuffer *fb =
-
+			crtc->base.primary->state->fb;
-		obj = intel_fb_bo(crtc->base.primary->state->fb);
 
 		/* self-refresh seems busted with untiled */
-		if (!intel_bo_is_tiled(obj))
+		if (fb->modifier == DRM_FORMAT_MOD_LINEAR)
 			crtc = NULL;
 	}
 

drivers/gpu/drm/i915/display/icl_dsi.c

@@ -35,7 +35,6 @@
 #include <drm/drm_probe_helper.h>
 
 #include "i915_reg.h"
-#include "i915_utils.h"
 #include "icl_dsi.h"
 #include "icl_dsi_regs.h"
 #include "intel_atomic.h"
@@ -48,6 +47,7 @@
 #include "intel_ddi.h"
 #include "intel_de.h"
 #include "intel_display_regs.h"
+#include "intel_display_utils.h"
 #include "intel_dsi.h"
 #include "intel_dsi_vbt.h"
 #include "intel_panel.h"
@@ -1655,7 +1655,7 @@ static int gen11_dsi_dsc_compute_config(struct intel_encoder *encoder,
 	if (ret)
 		return ret;
 
-	crtc_state->dsc.compression_enable = true;
+	intel_dsc_enable_on_crtc(crtc_state);
 
 	return 0;
 }

drivers/gpu/drm/i915/display/intel_acpi.c

@@ -11,10 +11,10 @@
 
 #include <drm/drm_print.h>
 
-#include "i915_utils.h"
 #include "intel_acpi.h"
 #include "intel_display_core.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 
 #define INTEL_DSM_REVISION_ID 1 /* For Calpella anyway... */
 #define INTEL_DSM_FN_PLATFORM_MUX_INFO 1 /* No args */

drivers/gpu/drm/i915/display/intel_alpm.c

@@ -49,7 +49,7 @@ void intel_alpm_init(struct intel_dp *intel_dp)
 		return;
 
 	intel_dp->alpm_dpcd = dpcd;
-	mutex_init(&intel_dp->alpm_parameters.lock);
+	mutex_init(&intel_dp->alpm.lock);
 }
 
 static int get_silence_period_symbols(const struct intel_crtc_state *crtc_state)
@@ -58,43 +58,32 @@ static int get_silence_period_symbols(const struct intel_crtc_state *crtc_state)
 		1000 / 1000;
 }
 
-static int get_lfps_cycle_min_max_time(const struct intel_crtc_state *crtc_state,
+static void get_lfps_cycle_min_max_time(const struct intel_crtc_state *crtc_state,
-				       int *min, int *max)
+					int *min, int *max)
 {
 	if (crtc_state->port_clock < 540000) {
 		*min = 65 * LFPS_CYCLE_COUNT;
 		*max = 75 * LFPS_CYCLE_COUNT;
-	} else if (crtc_state->port_clock <= 810000) {
+	} else {
 		*min = 140;
 		*max = 800;
-	} else {
-		*min = *max = -1;
-		return -1;
 	}
-
-	return 0;
 }
 
 static int get_lfps_cycle_time(const struct intel_crtc_state *crtc_state)
 {
-	int tlfps_cycle_min, tlfps_cycle_max, ret;
+	int tlfps_cycle_min, tlfps_cycle_max;
 
-	ret = get_lfps_cycle_min_max_time(crtc_state, &tlfps_cycle_min,
+	get_lfps_cycle_min_max_time(crtc_state, &tlfps_cycle_min,
-					  &tlfps_cycle_max);
+				    &tlfps_cycle_max);
-	if (ret)
-		return ret;
 
 	return tlfps_cycle_min +  (tlfps_cycle_max - tlfps_cycle_min) / 2;
 }
 
 static int get_lfps_half_cycle_clocks(const struct intel_crtc_state *crtc_state)
 {
-	int lfps_cycle_time = get_lfps_cycle_time(crtc_state);
+	return get_lfps_cycle_time(crtc_state) * crtc_state->port_clock / 1000 /
-
+		1000 / (2 * LFPS_CYCLE_COUNT);
-	if (lfps_cycle_time < 0)
-		return -1;
-
-	return lfps_cycle_time * crtc_state->port_clock / 1000 / 1000 / (2 * LFPS_CYCLE_COUNT);
 }
 
 /*
@@ -133,7 +122,7 @@ static int _lnl_compute_aux_less_wake_time(const struct intel_crtc_state *crtc_s
 
 static int
 _lnl_compute_aux_less_alpm_params(struct intel_dp *intel_dp,
-				  const struct intel_crtc_state *crtc_state)
+				  struct intel_crtc_state *crtc_state)
 {
 	struct intel_display *display = to_intel_display(intel_dp);
 	int aux_less_wake_time, aux_less_wake_lines, silence_period,
@@ -146,8 +135,6 @@ _lnl_compute_aux_less_alpm_params(struct intel_dp *intel_dp,
 	silence_period = get_silence_period_symbols(crtc_state);
 
 	lfps_half_cycle = get_lfps_half_cycle_clocks(crtc_state);
-	if (lfps_half_cycle < 0)
-		return false;
 
 	if (aux_less_wake_lines > ALPM_CTL_AUX_LESS_WAKE_TIME_MASK ||
 	    silence_period > PORT_ALPM_CTL_SILENCE_PERIOD_MASK ||
@@ -157,15 +144,15 @@ _lnl_compute_aux_less_alpm_params(struct intel_dp *intel_dp,
 	if (display->params.psr_safest_params)
 		aux_less_wake_lines = ALPM_CTL_AUX_LESS_WAKE_TIME_MASK;
 
-	intel_dp->alpm_parameters.aux_less_wake_lines = aux_less_wake_lines;
+	crtc_state->alpm_state.aux_less_wake_lines = aux_less_wake_lines;
-	intel_dp->alpm_parameters.silence_period_sym_clocks = silence_period;
+	crtc_state->alpm_state.silence_period_sym_clocks = silence_period;
-	intel_dp->alpm_parameters.lfps_half_cycle_num_of_syms = lfps_half_cycle;
+	crtc_state->alpm_state.lfps_half_cycle_num_of_syms = lfps_half_cycle;
 
 	return true;
 }
 
 static bool _lnl_compute_alpm_params(struct intel_dp *intel_dp,
-				     const struct intel_crtc_state *crtc_state)
+				     struct intel_crtc_state *crtc_state)
 {
 	struct intel_display *display = to_intel_display(intel_dp);
 	int check_entry_lines;
@@ -186,7 +173,7 @@ static bool _lnl_compute_alpm_params(struct intel_dp *intel_dp,
 	if (display->params.psr_safest_params)
 		check_entry_lines = 15;
 
-	intel_dp->alpm_parameters.check_entry_lines = check_entry_lines;
+	crtc_state->alpm_state.check_entry_lines = check_entry_lines;
 
 	return true;
 }
@@ -217,7 +204,7 @@ static int io_buffer_wake_time(const struct intel_crtc_state *crtc_state)
 }
 
 bool intel_alpm_compute_params(struct intel_dp *intel_dp,
-			       const struct intel_crtc_state *crtc_state)
+			       struct intel_crtc_state *crtc_state)
 {
 	struct intel_display *display = to_intel_display(intel_dp);
 	int io_wake_lines, io_wake_time, fast_wake_lines, fast_wake_time;
@@ -255,8 +242,8 @@ bool intel_alpm_compute_params(struct intel_dp *intel_dp,
 		io_wake_lines = fast_wake_lines = max_wake_lines;
 
 	/* According to Bspec lower limit should be set as 7 lines. */
-	intel_dp->alpm_parameters.io_wake_lines = max(io_wake_lines, 7);
+	crtc_state->alpm_state.io_wake_lines = max(io_wake_lines, 7);
-	intel_dp->alpm_parameters.fast_wake_lines = max(fast_wake_lines, 7);
+	crtc_state->alpm_state.fast_wake_lines = max(fast_wake_lines, 7);
 
 	return true;
 }
@@ -270,12 +257,12 @@ void intel_alpm_lobf_compute_config(struct intel_dp *intel_dp,
 	int waketime_in_lines, first_sdp_position;
 	int context_latency, guardband;
 
-	if (intel_dp->alpm_parameters.lobf_disable_debug) {
+	if (intel_dp->alpm.lobf_disable_debug) {
 		drm_dbg_kms(display->drm, "LOBF is disabled by debug flag\n");
 		return;
 	}
 
-	if (intel_dp->alpm_parameters.sink_alpm_error)
+	if (intel_dp->alpm.sink_alpm_error)
 		return;
 
 	if (!intel_dp_is_edp(intel_dp))
@@ -306,9 +293,9 @@ void intel_alpm_lobf_compute_config(struct intel_dp *intel_dp,
 		    adjusted_mode->crtc_vdisplay - context_latency;
 	first_sdp_position = adjusted_mode->crtc_vtotal - adjusted_mode->crtc_vsync_start;
 	if (intel_alpm_aux_less_wake_supported(intel_dp))
-		waketime_in_lines = intel_dp->alpm_parameters.io_wake_lines;
+		waketime_in_lines = crtc_state->alpm_state.io_wake_lines;
 	else
-		waketime_in_lines = intel_dp->alpm_parameters.aux_less_wake_lines;
+		waketime_in_lines = crtc_state->alpm_state.aux_less_wake_lines;
 
 	crtc_state->has_lobf = (context_latency + guardband) >
 		(first_sdp_position + waketime_in_lines);
@@ -325,7 +312,7 @@ static void lnl_alpm_configure(struct intel_dp *intel_dp,
 					  !crtc_state->has_lobf))
 		return;
 
-	mutex_lock(&intel_dp->alpm_parameters.lock);
+	mutex_lock(&intel_dp->alpm.lock);
 	/*
 	 * Panel Replay on eDP is always using ALPM aux less. I.e. no need to
 	 * check panel support at this point.
@@ -334,7 +321,7 @@ static void lnl_alpm_configure(struct intel_dp *intel_dp,
 		alpm_ctl = ALPM_CTL_ALPM_ENABLE |
 			ALPM_CTL_ALPM_AUX_LESS_ENABLE |
 			ALPM_CTL_AUX_LESS_SLEEP_HOLD_TIME_50_SYMBOLS |
-			ALPM_CTL_AUX_LESS_WAKE_TIME(intel_dp->alpm_parameters.aux_less_wake_lines);
+			ALPM_CTL_AUX_LESS_WAKE_TIME(crtc_state->alpm_state.aux_less_wake_lines);
 
 		if (intel_dp->as_sdp_supported) {
 			u32 pr_alpm_ctl = PR_ALPM_CTL_ADAPTIVE_SYNC_SDP_POSITION_T1;
@@ -352,7 +339,7 @@ static void lnl_alpm_configure(struct intel_dp *intel_dp,
 
 	} else {
 		alpm_ctl = ALPM_CTL_EXTENDED_FAST_WAKE_ENABLE |
-			ALPM_CTL_EXTENDED_FAST_WAKE_TIME(intel_dp->alpm_parameters.fast_wake_lines);
+			ALPM_CTL_EXTENDED_FAST_WAKE_TIME(crtc_state->alpm_state.fast_wake_lines);
 	}
 
 	if (crtc_state->has_lobf) {
@@ -360,17 +347,17 @@ static void lnl_alpm_configure(struct intel_dp *intel_dp,
 		drm_dbg_kms(display->drm, "Link off between frames (LOBF) enabled\n");
 	}
 
-	alpm_ctl |= ALPM_CTL_ALPM_ENTRY_CHECK(intel_dp->alpm_parameters.check_entry_lines);
+	alpm_ctl |= ALPM_CTL_ALPM_ENTRY_CHECK(crtc_state->alpm_state.check_entry_lines);
 
 	intel_de_write(display, ALPM_CTL(display, cpu_transcoder), alpm_ctl);
-	mutex_unlock(&intel_dp->alpm_parameters.lock);
+	mutex_unlock(&intel_dp->alpm.lock);
 }
 
 void intel_alpm_configure(struct intel_dp *intel_dp,
 			  const struct intel_crtc_state *crtc_state)
 {
 	lnl_alpm_configure(intel_dp, crtc_state);
-	intel_dp->alpm_parameters.transcoder = crtc_state->cpu_transcoder;
+	intel_dp->alpm.transcoder = crtc_state->cpu_transcoder;
 }
 
 void intel_alpm_port_configure(struct intel_dp *intel_dp,
@@ -388,14 +375,14 @@ void intel_alpm_port_configure(struct intel_dp *intel_dp,
 			PORT_ALPM_CTL_MAX_PHY_SWING_SETUP(15) |
 			PORT_ALPM_CTL_MAX_PHY_SWING_HOLD(0) |
 			PORT_ALPM_CTL_SILENCE_PERIOD(
-				intel_dp->alpm_parameters.silence_period_sym_clocks);
+				crtc_state->alpm_state.silence_period_sym_clocks);
 		lfps_ctl_val = PORT_ALPM_LFPS_CTL_LFPS_CYCLE_COUNT(LFPS_CYCLE_COUNT) |
 			PORT_ALPM_LFPS_CTL_LFPS_HALF_CYCLE_DURATION(
-				intel_dp->alpm_parameters.lfps_half_cycle_num_of_syms) |
+				crtc_state->alpm_state.lfps_half_cycle_num_of_syms) |
 			PORT_ALPM_LFPS_CTL_FIRST_LFPS_HALF_CYCLE_DURATION(
-				intel_dp->alpm_parameters.lfps_half_cycle_num_of_syms) |
+				crtc_state->alpm_state.lfps_half_cycle_num_of_syms) |
 			PORT_ALPM_LFPS_CTL_LAST_LFPS_HALF_CYCLE_DURATION(
-				intel_dp->alpm_parameters.lfps_half_cycle_num_of_syms);
+				crtc_state->alpm_state.lfps_half_cycle_num_of_syms);
 	}
 
 	intel_de_write(display, PORT_ALPM_CTL(port), alpm_ctl_val);
@@ -433,10 +420,10 @@ void intel_alpm_pre_plane_update(struct intel_atomic_state *state,
 			continue;
 
 		if (old_crtc_state->has_lobf) {
-			mutex_lock(&intel_dp->alpm_parameters.lock);
+			mutex_lock(&intel_dp->alpm.lock);
 			intel_de_write(display, ALPM_CTL(display, cpu_transcoder), 0);
 			drm_dbg_kms(display->drm, "Link off between frames (LOBF) disabled\n");
-			mutex_unlock(&intel_dp->alpm_parameters.lock);
+			mutex_unlock(&intel_dp->alpm.lock);
 		}
 	}
 }
@@ -530,7 +517,7 @@ i915_edp_lobf_debug_get(void *data, u64 *val)
 	struct intel_connector *connector = data;
 	struct intel_dp *intel_dp = enc_to_intel_dp(connector->encoder);
 
-	*val = intel_dp->alpm_parameters.lobf_disable_debug;
+	*val = intel_dp->alpm.lobf_disable_debug;
 
 	return 0;
 }
@@ -541,7 +528,7 @@ i915_edp_lobf_debug_set(void *data, u64 val)
 	struct intel_connector *connector = data;
 	struct intel_dp *intel_dp = enc_to_intel_dp(connector->encoder);
 
-	intel_dp->alpm_parameters.lobf_disable_debug = val;
+	intel_dp->alpm.lobf_disable_debug = val;
 
 	return 0;
 }
@@ -569,12 +556,12 @@ void intel_alpm_lobf_debugfs_add(struct intel_connector *connector)
 void intel_alpm_disable(struct intel_dp *intel_dp)
 {
 	struct intel_display *display = to_intel_display(intel_dp);
-	enum transcoder cpu_transcoder = intel_dp->alpm_parameters.transcoder;
+	enum transcoder cpu_transcoder = intel_dp->alpm.transcoder;
 
 	if (DISPLAY_VER(display) < 20 || !intel_dp->alpm_dpcd)
 		return;
 
-	mutex_lock(&intel_dp->alpm_parameters.lock);
+	mutex_lock(&intel_dp->alpm.lock);
 
 	intel_de_rmw(display, ALPM_CTL(display, cpu_transcoder),
 		     ALPM_CTL_ALPM_ENABLE | ALPM_CTL_LOBF_ENABLE |
@@ -585,7 +572,7 @@ void intel_alpm_disable(struct intel_dp *intel_dp)
 		     PORT_ALPM_CTL_ALPM_AUX_LESS_ENABLE, 0);
 
 	drm_dbg_kms(display->drm, "Disabling ALPM\n");
-	mutex_unlock(&intel_dp->alpm_parameters.lock);
+	mutex_unlock(&intel_dp->alpm.lock);
 }
 
 bool intel_alpm_get_error(struct intel_dp *intel_dp)

drivers/gpu/drm/i915/display/intel_alpm.h

@@ -17,7 +17,7 @@ struct intel_crtc;
 
 void intel_alpm_init(struct intel_dp *intel_dp);
 bool intel_alpm_compute_params(struct intel_dp *intel_dp,
-			       const struct intel_crtc_state *crtc_state);
+			       struct intel_crtc_state *crtc_state);
 void intel_alpm_lobf_compute_config(struct intel_dp *intel_dp,
 				    struct intel_crtc_state *crtc_state,
 				    struct drm_connector_state *conn_state);

drivers/gpu/drm/i915/display/intel_backlight.c

@@ -13,7 +13,6 @@
 #include <drm/drm_print.h>
 
 #include "i915_reg.h"
-#include "i915_utils.h"
 #include "intel_backlight.h"
 #include "intel_backlight_regs.h"
 #include "intel_connector.h"
@@ -21,6 +20,7 @@
 #include "intel_display_regs.h"
 #include "intel_display_rpm.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dp_aux_backlight.h"
 #include "intel_dsi_dcs_backlight.h"
 #include "intel_panel.h"

drivers/gpu/drm/i915/display/intel_bios.c

@@ -36,11 +36,11 @@
 #include "soc/intel_rom.h"
 
 #include "i915_drv.h"
-#include "i915_utils.h"
 #include "intel_display.h"
 #include "intel_display_core.h"
 #include "intel_display_rpm.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_gmbus.h"
 
 #define _INTEL_BIOS_PRIVATE

drivers/gpu/drm/i915/display/intel_bw.c

@@ -3,32 +3,23 @@
  * Copyright © 2019 Intel Corporation
  */
 
-#include <drm/drm_atomic_state_helper.h>
-
 #include "soc/intel_dram.h"
 
 #include "i915_drv.h"
 #include "i915_reg.h"
-#include "i915_utils.h"
-#include "intel_atomic.h"
 #include "intel_bw.h"
-#include "intel_cdclk.h"
+#include "intel_crtc.h"
 #include "intel_display_core.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_mchbar_regs.h"
 #include "intel_pcode.h"
 #include "intel_uncore.h"
 #include "skl_watermark.h"
 
-struct intel_dbuf_bw {
-	unsigned int max_bw[I915_MAX_DBUF_SLICES];
-	u8 active_planes[I915_MAX_DBUF_SLICES];
-};
-
 struct intel_bw_state {
 	struct intel_global_state base;
-	struct intel_dbuf_bw dbuf_bw[I915_MAX_PIPES];
 
 	/*
 	 * Contains a bit mask, used to determine, whether correspondent
@@ -836,49 +827,6 @@ void intel_bw_init_hw(struct intel_display *display)
 		icl_get_bw_info(display, dram_info, &icl_sa_info);
 }
 
-static unsigned int intel_bw_crtc_num_active_planes(const struct intel_crtc_state *crtc_state)
-{
-	/*
-	 * We assume cursors are small enough
-	 * to not not cause bandwidth problems.
-	 */
-	return hweight8(crtc_state->active_planes & ~BIT(PLANE_CURSOR));
-}
-
-static unsigned int intel_bw_crtc_data_rate(const struct intel_crtc_state *crtc_state)
-{
-	struct intel_display *display = to_intel_display(crtc_state);
-	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
-	unsigned int data_rate = 0;
-	enum plane_id plane_id;
-
-	for_each_plane_id_on_crtc(crtc, plane_id) {
-		/*
-		 * We assume cursors are small enough
-		 * to not not cause bandwidth problems.
-		 */
-		if (plane_id == PLANE_CURSOR)
-			continue;
-
-		data_rate += crtc_state->data_rate[plane_id];
-
-		if (DISPLAY_VER(display) < 11)
-			data_rate += crtc_state->data_rate_y[plane_id];
-	}
-
-	return data_rate;
-}
-
-/* "Maximum Pipe Read Bandwidth" */
-static int intel_bw_crtc_min_cdclk(struct intel_display *display,
-				   unsigned int data_rate)
-{
-	if (DISPLAY_VER(display) < 12)
-		return 0;
-
-	return DIV_ROUND_UP_ULL(mul_u32_u32(data_rate, 10), 512);
-}
-
 static unsigned int intel_bw_num_active_planes(struct intel_display *display,
 					       const struct intel_bw_state *bw_state)
 {
@@ -894,14 +842,13 @@ static unsigned int intel_bw_num_active_planes(struct intel_display *display,
 static unsigned int intel_bw_data_rate(struct intel_display *display,
 				       const struct intel_bw_state *bw_state)
 {
-	struct drm_i915_private *i915 = to_i915(display->drm);
 	unsigned int data_rate = 0;
 	enum pipe pipe;
 
 	for_each_pipe(display, pipe)
 		data_rate += bw_state->data_rate[pipe];
 
-	if (DISPLAY_VER(display) >= 13 && i915_vtd_active(i915))
+	if (DISPLAY_VER(display) >= 13 && intel_display_vtd_active(display))
 		data_rate = DIV_ROUND_UP(data_rate * 105, 100);
 
 	return data_rate;
@@ -1262,223 +1209,6 @@ static int intel_bw_check_qgv_points(struct intel_display *display,
 					   old_bw_state, new_bw_state);
 }
 
-static bool intel_dbuf_bw_changed(struct intel_display *display,
-				  const struct intel_dbuf_bw *old_dbuf_bw,
-				  const struct intel_dbuf_bw *new_dbuf_bw)
-{
-	enum dbuf_slice slice;
-
-	for_each_dbuf_slice(display, slice) {
-		if (old_dbuf_bw->max_bw[slice] != new_dbuf_bw->max_bw[slice] ||
-		    old_dbuf_bw->active_planes[slice] != new_dbuf_bw->active_planes[slice])
-			return true;
-	}
-
-	return false;
-}
-
-static bool intel_bw_state_changed(struct intel_display *display,
-				   const struct intel_bw_state *old_bw_state,
-				   const struct intel_bw_state *new_bw_state)
-{
-	enum pipe pipe;
-
-	for_each_pipe(display, pipe) {
-		const struct intel_dbuf_bw *old_dbuf_bw =
-			&old_bw_state->dbuf_bw[pipe];
-		const struct intel_dbuf_bw *new_dbuf_bw =
-			&new_bw_state->dbuf_bw[pipe];
-
-		if (intel_dbuf_bw_changed(display, old_dbuf_bw, new_dbuf_bw))
-			return true;
-
-		if (intel_bw_crtc_min_cdclk(display, old_bw_state->data_rate[pipe]) !=
-		    intel_bw_crtc_min_cdclk(display, new_bw_state->data_rate[pipe]))
-			return true;
-	}
-
-	return false;
-}
-
-static void skl_plane_calc_dbuf_bw(struct intel_dbuf_bw *dbuf_bw,
-				   struct intel_crtc *crtc,
-				   enum plane_id plane_id,
-				   const struct skl_ddb_entry *ddb,
-				   unsigned int data_rate)
-{
-	struct intel_display *display = to_intel_display(crtc);
-	unsigned int dbuf_mask = skl_ddb_dbuf_slice_mask(display, ddb);
-	enum dbuf_slice slice;
-
-	/*
-	 * The arbiter can only really guarantee an
-	 * equal share of the total bw to each plane.
-	 */
-	for_each_dbuf_slice_in_mask(display, slice, dbuf_mask) {
-		dbuf_bw->max_bw[slice] = max(dbuf_bw->max_bw[slice], data_rate);
-		dbuf_bw->active_planes[slice] |= BIT(plane_id);
-	}
-}
-
-static void skl_crtc_calc_dbuf_bw(struct intel_dbuf_bw *dbuf_bw,
-				  const struct intel_crtc_state *crtc_state)
-{
-	struct intel_display *display = to_intel_display(crtc_state);
-	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
-	enum plane_id plane_id;
-
-	memset(dbuf_bw, 0, sizeof(*dbuf_bw));
-
-	if (!crtc_state->hw.active)
-		return;
-
-	for_each_plane_id_on_crtc(crtc, plane_id) {
-		/*
-		 * We assume cursors are small enough
-		 * to not cause bandwidth problems.
-		 */
-		if (plane_id == PLANE_CURSOR)
-			continue;
-
-		skl_plane_calc_dbuf_bw(dbuf_bw, crtc, plane_id,
-				       &crtc_state->wm.skl.plane_ddb[plane_id],
-				       crtc_state->data_rate[plane_id]);
-
-		if (DISPLAY_VER(display) < 11)
-			skl_plane_calc_dbuf_bw(dbuf_bw, crtc, plane_id,
-					       &crtc_state->wm.skl.plane_ddb_y[plane_id],
-					       crtc_state->data_rate[plane_id]);
-	}
-}
-
-/* "Maximum Data Buffer Bandwidth" */
-static int
-intel_bw_dbuf_min_cdclk(struct intel_display *display,
-			const struct intel_bw_state *bw_state)
-{
-	unsigned int total_max_bw = 0;
-	enum dbuf_slice slice;
-
-	for_each_dbuf_slice(display, slice) {
-		int num_active_planes = 0;
-		unsigned int max_bw = 0;
-		enum pipe pipe;
-
-		/*
-		 * The arbiter can only really guarantee an
-		 * equal share of the total bw to each plane.
-		 */
-		for_each_pipe(display, pipe) {
-			const struct intel_dbuf_bw *dbuf_bw = &bw_state->dbuf_bw[pipe];
-
-			max_bw = max(dbuf_bw->max_bw[slice], max_bw);
-			num_active_planes += hweight8(dbuf_bw->active_planes[slice]);
-		}
-		max_bw *= num_active_planes;
-
-		total_max_bw = max(total_max_bw, max_bw);
-	}
-
-	return DIV_ROUND_UP(total_max_bw, 64);
-}
-
-int intel_bw_min_cdclk(struct intel_display *display,
-		       const struct intel_bw_state *bw_state)
-{
-	enum pipe pipe;
-	int min_cdclk;
-
-	min_cdclk = intel_bw_dbuf_min_cdclk(display, bw_state);
-
-	for_each_pipe(display, pipe)
-		min_cdclk = max(min_cdclk,
-				intel_bw_crtc_min_cdclk(display,
-							bw_state->data_rate[pipe]));
-
-	return min_cdclk;
-}
-
-int intel_bw_calc_min_cdclk(struct intel_atomic_state *state,
-			    bool *need_cdclk_calc)
-{
-	struct intel_display *display = to_intel_display(state);
-	struct intel_bw_state *new_bw_state = NULL;
-	const struct intel_bw_state *old_bw_state = NULL;
-	const struct intel_cdclk_state *cdclk_state;
-	const struct intel_crtc_state *old_crtc_state;
-	const struct intel_crtc_state *new_crtc_state;
-	int old_min_cdclk, new_min_cdclk;
-	struct intel_crtc *crtc;
-	int i;
-
-	if (DISPLAY_VER(display) < 9)
-		return 0;
-
-	for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state,
-					    new_crtc_state, i) {
-		struct intel_dbuf_bw old_dbuf_bw, new_dbuf_bw;
-
-		skl_crtc_calc_dbuf_bw(&old_dbuf_bw, old_crtc_state);
-		skl_crtc_calc_dbuf_bw(&new_dbuf_bw, new_crtc_state);
-
-		if (!intel_dbuf_bw_changed(display, &old_dbuf_bw, &new_dbuf_bw))
-			continue;
-
-		new_bw_state = intel_atomic_get_bw_state(state);
-		if (IS_ERR(new_bw_state))
-			return PTR_ERR(new_bw_state);
-
-		old_bw_state = intel_atomic_get_old_bw_state(state);
-
-		new_bw_state->dbuf_bw[crtc->pipe] = new_dbuf_bw;
-	}
-
-	if (!old_bw_state)
-		return 0;
-
-	if (intel_bw_state_changed(display, old_bw_state, new_bw_state)) {
-		int ret = intel_atomic_lock_global_state(&new_bw_state->base);
-		if (ret)
-			return ret;
-	}
-
-	old_min_cdclk = intel_bw_min_cdclk(display, old_bw_state);
-	new_min_cdclk = intel_bw_min_cdclk(display, new_bw_state);
-
-	/*
-	 * No need to check against the cdclk state if
-	 * the min cdclk doesn't increase.
-	 *
-	 * Ie. we only ever increase the cdclk due to bandwidth
-	 * requirements. This can reduce back and forth
-	 * display blinking due to constant cdclk changes.
-	 */
-	if (new_min_cdclk <= old_min_cdclk)
-		return 0;
-
-	cdclk_state = intel_atomic_get_cdclk_state(state);
-	if (IS_ERR(cdclk_state))
-		return PTR_ERR(cdclk_state);
-
-	/*
-	 * No need to recalculate the cdclk state if
-	 * the min cdclk doesn't increase.
-	 *
-	 * Ie. we only ever increase the cdclk due to bandwidth
-	 * requirements. This can reduce back and forth
-	 * display blinking due to constant cdclk changes.
-	 */
-	if (new_min_cdclk <= intel_cdclk_bw_min_cdclk(cdclk_state))
-		return 0;
-
-	drm_dbg_kms(display->drm,
-		    "new bandwidth min cdclk (%d kHz) > old min cdclk (%d kHz)\n",
-		    new_min_cdclk, intel_cdclk_bw_min_cdclk(cdclk_state));
-	*need_cdclk_calc = true;
-
-	return 0;
-}
-
 static int intel_bw_check_data_rate(struct intel_atomic_state *state, bool *changed)
 {
 	struct intel_display *display = to_intel_display(state);
@@ -1489,13 +1219,13 @@ static int intel_bw_check_data_rate(struct intel_atomic_state *state, bool *chan
 	for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state,
 					    new_crtc_state, i) {
 		unsigned int old_data_rate =
-			intel_bw_crtc_data_rate(old_crtc_state);
+			intel_crtc_bw_data_rate(old_crtc_state);
 		unsigned int new_data_rate =
-			intel_bw_crtc_data_rate(new_crtc_state);
+			intel_crtc_bw_data_rate(new_crtc_state);
 		unsigned int old_active_planes =
-			intel_bw_crtc_num_active_planes(old_crtc_state);
+			intel_crtc_bw_num_active_planes(old_crtc_state);
 		unsigned int new_active_planes =
-			intel_bw_crtc_num_active_planes(new_crtc_state);
+			intel_crtc_bw_num_active_planes(new_crtc_state);
 		struct intel_bw_state *new_bw_state;
 
 		/*
@@ -1527,11 +1257,11 @@ static int intel_bw_check_data_rate(struct intel_atomic_state *state, bool *chan
 
 static int intel_bw_modeset_checks(struct intel_atomic_state *state)
 {
-	struct intel_display *display = to_intel_display(state);
 	const struct intel_bw_state *old_bw_state;
 	struct intel_bw_state *new_bw_state;
+	int ret;
 
-	if (DISPLAY_VER(display) < 9)
+	if (!intel_any_crtc_active_changed(state))
 		return 0;
 
 	new_bw_state = intel_atomic_get_bw_state(state);
@@ -1543,13 +1273,9 @@ static int intel_bw_modeset_checks(struct intel_atomic_state *state)
 	new_bw_state->active_pipes =
 		intel_calc_active_pipes(state, old_bw_state->active_pipes);
 
-	if (new_bw_state->active_pipes != old_bw_state->active_pipes) {
+	ret = intel_atomic_lock_global_state(&new_bw_state->base);
-		int ret;
+	if (ret)
-
+		return ret;
-		ret = intel_atomic_lock_global_state(&new_bw_state->base);
-		if (ret)
-			return ret;
-	}
 
 	return 0;
 }
@@ -1599,7 +1325,7 @@ static int intel_bw_check_sagv_mask(struct intel_atomic_state *state)
 	return 0;
 }
 
-int intel_bw_atomic_check(struct intel_atomic_state *state, bool any_ms)
+int intel_bw_atomic_check(struct intel_atomic_state *state)
 {
 	struct intel_display *display = to_intel_display(state);
 	bool changed = false;
@@ -1610,11 +1336,9 @@ int intel_bw_atomic_check(struct intel_atomic_state *state, bool any_ms)
 	if (DISPLAY_VER(display) < 9)
 		return 0;
 
-	if (any_ms) {
+	ret = intel_bw_modeset_checks(state);
-		ret = intel_bw_modeset_checks(state);
+	if (ret)
-		if (ret)
+		return ret;
-			return ret;
-	}
 
 	ret = intel_bw_check_sagv_mask(state);
 	if (ret)
@@ -1657,9 +1381,9 @@ static void intel_bw_crtc_update(struct intel_bw_state *bw_state,
 	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
 
 	bw_state->data_rate[crtc->pipe] =
-		intel_bw_crtc_data_rate(crtc_state);
+		intel_crtc_bw_data_rate(crtc_state);
 	bw_state->num_active_planes[crtc->pipe] =
-		intel_bw_crtc_num_active_planes(crtc_state);
+		intel_crtc_bw_num_active_planes(crtc_state);
 
 	drm_dbg_kms(display->drm, "pipe %c data rate %u num active planes %u\n",
 		    pipe_name(crtc->pipe),
@@ -1690,8 +1414,6 @@ void intel_bw_update_hw_state(struct intel_display *display)
 		if (DISPLAY_VER(display) >= 11)
 			intel_bw_crtc_update(bw_state, crtc_state);
 
-		skl_crtc_calc_dbuf_bw(&bw_state->dbuf_bw[pipe], crtc_state);
-
 		/* initially SAGV has been forced off */
 		bw_state->pipe_sagv_reject |= BIT(pipe);
 	}
@@ -1709,7 +1431,6 @@ void intel_bw_crtc_disable_noatomic(struct intel_crtc *crtc)
 
 	bw_state->data_rate[pipe] = 0;
 	bw_state->num_active_planes[pipe] = 0;
-	memset(&bw_state->dbuf_bw[pipe], 0, sizeof(bw_state->dbuf_bw[pipe]));
 }
 
 static struct intel_global_state *

drivers/gpu/drm/i915/display/intel_bw.h

@@ -28,11 +28,7 @@ intel_atomic_get_bw_state(struct intel_atomic_state *state);
 
 void intel_bw_init_hw(struct intel_display *display);
 int intel_bw_init(struct intel_display *display);
-int intel_bw_atomic_check(struct intel_atomic_state *state, bool any_ms);
+int intel_bw_atomic_check(struct intel_atomic_state *state);
-int intel_bw_calc_min_cdclk(struct intel_atomic_state *state,
-			    bool *need_cdclk_calc);
-int intel_bw_min_cdclk(struct intel_display *display,
-		       const struct intel_bw_state *bw_state);
 void intel_bw_update_hw_state(struct intel_display *display);
 void intel_bw_crtc_disable_noatomic(struct intel_crtc *crtc);
 

drivers/gpu/drm/i915/display/intel_casf.c

@@ -0,0 +1,290 @@
+// SPDX-License-Identifier: MIT
+/* Copyright © 2025 Intel Corporation */
+
+#include <drm/drm_print.h>
+
+#include "i915_reg.h"
+#include "intel_casf.h"
+#include "intel_casf_regs.h"
+#include "intel_de.h"
+#include "intel_display_regs.h"
+#include "intel_display_types.h"
+#include "skl_scaler.h"
+
+#define MAX_PIXELS_FOR_3_TAP_FILTER (1920 * 1080)
+#define MAX_PIXELS_FOR_5_TAP_FILTER (3840 * 2160)
+
+#define FILTER_COEFF_0_125 125
+#define FILTER_COEFF_0_25 250
+#define FILTER_COEFF_0_5 500
+#define FILTER_COEFF_1_0 1000
+#define FILTER_COEFF_0_0 0
+#define SET_POSITIVE_SIGN(x) ((x) & (~SIGN))
+
+/**
+ * DOC: Content Adaptive Sharpness Filter (CASF)
+ *
+ * Starting from LNL the display engine supports an
+ * adaptive sharpening filter, enhancing the image
+ * quality. The display hardware utilizes the second
+ * pipe scaler for implementing CASF.
+ * If sharpness is being enabled then pipe scaling
+ * cannot be used.
+ * This filter operates on a region of pixels based
+ * on the tap size. Coefficients are used to generate
+ * an alpha value which blends the sharpened image to
+ * original image.
+ */
+
+/* Default LUT values to be loaded one time. */
+static const u16 sharpness_lut[] = {
+	4095, 2047, 1364, 1022, 816, 678, 579,
+	504, 444, 397, 357, 323, 293, 268, 244, 224,
+	204, 187, 170, 154, 139, 125, 111, 98, 85,
+	73, 60, 48, 36, 24, 12, 0
+};
+
+const u16 filtercoeff_1[] = {
+	FILTER_COEFF_0_0, FILTER_COEFF_0_0, FILTER_COEFF_0_5,
+	FILTER_COEFF_1_0, FILTER_COEFF_0_5, FILTER_COEFF_0_0,
+	FILTER_COEFF_0_0,
+};
+
+const u16 filtercoeff_2[] = {
+	FILTER_COEFF_0_0, FILTER_COEFF_0_25, FILTER_COEFF_0_5,
+	FILTER_COEFF_1_0, FILTER_COEFF_0_5, FILTER_COEFF_0_25,
+	FILTER_COEFF_0_0,
+};
+
+const u16 filtercoeff_3[] = {
+	FILTER_COEFF_0_125, FILTER_COEFF_0_25, FILTER_COEFF_0_5,
+	FILTER_COEFF_1_0, FILTER_COEFF_0_5, FILTER_COEFF_0_25,
+	FILTER_COEFF_0_125,
+};
+
+static void intel_casf_filter_lut_load(struct intel_crtc *crtc,
+				       const struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+	int i;
+
+	intel_de_write(display, SHRPLUT_INDEX(crtc->pipe),
+		       INDEX_AUTO_INCR | INDEX_VALUE(0));
+
+	for (i = 0; i < ARRAY_SIZE(sharpness_lut); i++)
+		intel_de_write(display, SHRPLUT_DATA(crtc->pipe),
+			       sharpness_lut[i]);
+}
+
+void intel_casf_update_strength(struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+	int win_size;
+
+	intel_de_rmw(display, SHARPNESS_CTL(crtc->pipe), FILTER_STRENGTH_MASK,
+		     FILTER_STRENGTH(crtc_state->hw.casf_params.strength));
+
+	win_size = intel_de_read(display, SKL_PS_WIN_SZ(crtc->pipe, 1));
+
+	intel_de_write_fw(display, SKL_PS_WIN_SZ(crtc->pipe, 1), win_size);
+}
+
+static void intel_casf_compute_win_size(struct intel_crtc_state *crtc_state)
+{
+	const struct drm_display_mode *mode = &crtc_state->hw.adjusted_mode;
+	u32 total_pixels = mode->hdisplay * mode->vdisplay;
+
+	if (total_pixels <= MAX_PIXELS_FOR_3_TAP_FILTER)
+		crtc_state->hw.casf_params.win_size = SHARPNESS_FILTER_SIZE_3X3;
+	else if (total_pixels <= MAX_PIXELS_FOR_5_TAP_FILTER)
+		crtc_state->hw.casf_params.win_size = SHARPNESS_FILTER_SIZE_5X5;
+	else
+		crtc_state->hw.casf_params.win_size = SHARPNESS_FILTER_SIZE_7X7;
+}
+
+int intel_casf_compute_config(struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+
+	if (!HAS_CASF(display))
+		return 0;
+
+	if (crtc_state->uapi.sharpness_strength == 0) {
+		crtc_state->hw.casf_params.casf_enable = false;
+		crtc_state->hw.casf_params.strength = 0;
+		return 0;
+	}
+
+	crtc_state->hw.casf_params.casf_enable = true;
+
+	/*
+	 * HW takes a value in form (1.0 + strength) in 4.4 fixed format.
+	 * Strength is from 0.0-14.9375 ie from 0-239.
+	 * User can give value from 0-255 but is clamped to 239.
+	 * Ex. User gives 85 which is 5.3125 and adding 1.0 gives 6.3125.
+	 * 6.3125 in 4.4 format is b01100101 which is equal to 101.
+	 * Also 85 + 16 = 101.
+	 */
+	crtc_state->hw.casf_params.strength =
+		min(crtc_state->uapi.sharpness_strength, 0xEF) + 0x10;
+
+	intel_casf_compute_win_size(crtc_state);
+
+	intel_casf_scaler_compute_config(crtc_state);
+
+	return 0;
+}
+
+void intel_casf_sharpness_get_config(struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+	u32 sharp;
+
+	sharp = intel_de_read(display, SHARPNESS_CTL(crtc->pipe));
+	if (sharp & FILTER_EN) {
+		if (drm_WARN_ON(display->drm,
+				REG_FIELD_GET(FILTER_STRENGTH_MASK, sharp) < 16))
+			crtc_state->hw.casf_params.strength = 0;
+		else
+			crtc_state->hw.casf_params.strength =
+				REG_FIELD_GET(FILTER_STRENGTH_MASK, sharp);
+		crtc_state->hw.casf_params.casf_enable = true;
+		crtc_state->hw.casf_params.win_size =
+			REG_FIELD_GET(FILTER_SIZE_MASK, sharp);
+	}
+}
+
+bool intel_casf_needs_scaler(const struct intel_crtc_state *crtc_state)
+{
+	if (crtc_state->hw.casf_params.casf_enable)
+		return true;
+
+	return false;
+}
+
+static int casf_coeff_tap(int i)
+{
+	return i % SCALER_FILTER_NUM_TAPS;
+}
+
+static u32 casf_coeff(struct intel_crtc_state *crtc_state, int t)
+{
+	struct scaler_filter_coeff value;
+	u32 coeff;
+
+	value = crtc_state->hw.casf_params.coeff[t];
+	value.sign = 0;
+
+	coeff = value.sign << 15 | value.exp << 12 | value.mantissa << 3;
+	return coeff;
+}
+
+/*
+ * 17 phase of 7 taps requires 119 coefficients in 60 dwords per set.
+ * To enable casf:  program scaler coefficients with the coeffients
+ * that are calculated and stored in hw.casf_params.coeff as per
+ * SCALER_COEFFICIENT_FORMAT
+ */
+static void intel_casf_write_coeff(struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+	int id = crtc_state->scaler_state.scaler_id;
+	int i;
+
+	if (id != 1) {
+		drm_WARN(display->drm, 0, "Second scaler not enabled\n");
+		return;
+	}
+
+	intel_de_write_fw(display, GLK_PS_COEF_INDEX_SET(crtc->pipe, id, 0),
+			  PS_COEF_INDEX_AUTO_INC);
+
+	for (i = 0; i < 17 * SCALER_FILTER_NUM_TAPS; i += 2) {
+		u32 tmp;
+		int t;
+
+		t = casf_coeff_tap(i);
+		tmp = casf_coeff(crtc_state, t);
+
+		t = casf_coeff_tap(i + 1);
+		tmp |= casf_coeff(crtc_state, t) << 16;
+
+		intel_de_write_fw(display, GLK_PS_COEF_DATA_SET(crtc->pipe, id, 0),
+				  tmp);
+	}
+}
+
+static void convert_sharpness_coef_binary(struct scaler_filter_coeff *coeff,
+					  u16 coefficient)
+{
+	if (coefficient < 25) {
+		coeff->mantissa = (coefficient * 2048) / 100;
+		coeff->exp = 3;
+	} else if (coefficient < 50) {
+		coeff->mantissa = (coefficient * 1024) / 100;
+		coeff->exp = 2;
+	} else if (coefficient < 100) {
+		coeff->mantissa = (coefficient * 512) / 100;
+		coeff->exp = 1;
+	} else {
+		coeff->mantissa = (coefficient * 256) / 100;
+		coeff->exp = 0;
+	}
+}
+
+void intel_casf_scaler_compute_config(struct intel_crtc_state *crtc_state)
+{
+	const u16 *filtercoeff;
+	u16 filter_coeff[SCALER_FILTER_NUM_TAPS];
+	u16 sumcoeff = 0;
+	int i;
+
+	if (crtc_state->hw.casf_params.win_size == 0)
+		filtercoeff = filtercoeff_1;
+	else if (crtc_state->hw.casf_params.win_size == 1)
+		filtercoeff = filtercoeff_2;
+	else
+		filtercoeff = filtercoeff_3;
+
+	for (i = 0; i < SCALER_FILTER_NUM_TAPS; i++)
+		sumcoeff += *(filtercoeff + i);
+
+	for (i = 0; i < SCALER_FILTER_NUM_TAPS; i++) {
+		filter_coeff[i] = (*(filtercoeff + i) * 100 / sumcoeff);
+		convert_sharpness_coef_binary(&crtc_state->hw.casf_params.coeff[i],
+					      filter_coeff[i]);
+	}
+}
+
+void intel_casf_enable(struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+	u32 sharpness_ctl;
+
+	intel_casf_filter_lut_load(crtc, crtc_state);
+
+	intel_casf_write_coeff(crtc_state);
+
+	sharpness_ctl = FILTER_EN | FILTER_STRENGTH(crtc_state->hw.casf_params.strength);
+
+	sharpness_ctl |= crtc_state->hw.casf_params.win_size;
+
+	intel_de_write(display, SHARPNESS_CTL(crtc->pipe), sharpness_ctl);
+
+	skl_scaler_setup_casf(crtc_state);
+}
+
+void intel_casf_disable(const struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+
+	intel_de_write(display, SKL_PS_CTRL(crtc->pipe, 1), 0);
+	intel_de_write(display, SKL_PS_WIN_POS(crtc->pipe, 1), 0);
+	intel_de_write(display, SHARPNESS_CTL(crtc->pipe), 0);
+	intel_de_write(display, SKL_PS_WIN_SZ(crtc->pipe, 1), 0);
+}

drivers/gpu/drm/i915/display/intel_casf.h

@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2025 Intel Corporation
+ */
+
+#ifndef __INTEL_CASF_H__
+#define __INTEL_CASF_H__
+
+#include <linux/types.h>
+
+struct intel_crtc_state;
+
+int intel_casf_compute_config(struct intel_crtc_state *crtc_state);
+void intel_casf_update_strength(struct intel_crtc_state *new_crtc_state);
+void intel_casf_sharpness_get_config(struct intel_crtc_state *crtc_state);
+void intel_casf_enable(struct intel_crtc_state *crtc_state);
+void intel_casf_disable(const struct intel_crtc_state *crtc_state);
+void intel_casf_scaler_compute_config(struct intel_crtc_state *crtc_state);
+bool intel_casf_needs_scaler(const struct intel_crtc_state *crtc_state);
+
+#endif /* __INTEL_CASF_H__ */

drivers/gpu/drm/i915/display/intel_casf_regs.h

@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2025 Intel Corporation
+ */
+
+#ifndef __INTEL_CASF_REGS_H__
+#define __INTEL_CASF_REGS_H__
+
+#include "intel_display_reg_defs.h"
+
+#define _SHARPNESS_CTL_A		0x682B0
+#define _SHARPNESS_CTL_B		0x68AB0
+#define SHARPNESS_CTL(pipe)		_MMIO_PIPE(pipe, _SHARPNESS_CTL_A, _SHARPNESS_CTL_B)
+#define   FILTER_EN			REG_BIT(31)
+#define   FILTER_STRENGTH_MASK		REG_GENMASK(15, 8)
+#define   FILTER_STRENGTH(x)		REG_FIELD_PREP(FILTER_STRENGTH_MASK, (x))
+#define   FILTER_SIZE_MASK		REG_GENMASK(1, 0)
+#define   SHARPNESS_FILTER_SIZE_3X3	REG_FIELD_PREP(FILTER_SIZE_MASK, 0)
+#define   SHARPNESS_FILTER_SIZE_5X5	REG_FIELD_PREP(FILTER_SIZE_MASK, 1)
+#define   SHARPNESS_FILTER_SIZE_7X7	REG_FIELD_PREP(FILTER_SIZE_MASK, 2)
+
+#define _SHRPLUT_DATA_A			0x682B8
+#define _SHRPLUT_DATA_B			0x68AB8
+#define SHRPLUT_DATA(pipe)		_MMIO_PIPE(pipe, _SHRPLUT_DATA_A, _SHRPLUT_DATA_B)
+
+#define _SHRPLUT_INDEX_A		0x682B4
+#define _SHRPLUT_INDEX_B		0x68AB4
+#define SHRPLUT_INDEX(pipe)		_MMIO_PIPE(pipe, _SHRPLUT_INDEX_A, _SHRPLUT_INDEX_B)
+#define   INDEX_AUTO_INCR		REG_BIT(10)
+#define   INDEX_VALUE_MASK		REG_GENMASK(4, 0)
+#define   INDEX_VALUE(x)		REG_FIELD_PREP(INDEX_VALUE_MASK, (x))
+
+#endif /* __INTEL_CASF_REGS__ */

drivers/gpu/drm/i915/display/intel_cdclk.c

@@ -32,15 +32,15 @@
 #include "hsw_ips.h"
 #include "i915_drv.h"
 #include "i915_reg.h"
-#include "i915_utils.h"
 #include "intel_atomic.h"
 #include "intel_audio.h"
-#include "intel_bw.h"
 #include "intel_cdclk.h"
 #include "intel_crtc.h"
+#include "intel_dbuf_bw.h"
 #include "intel_de.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_mchbar_regs.h"
 #include "intel_pci_config.h"
 #include "intel_pcode.h"
@@ -49,6 +49,7 @@
 #include "intel_vdsc.h"
 #include "skl_watermark.h"
 #include "skl_watermark_regs.h"
+#include "vlv_clock.h"
 #include "vlv_dsi.h"
 #include "vlv_sideband.h"
 
@@ -132,8 +133,8 @@ struct intel_cdclk_state {
 	 */
 	struct intel_cdclk_config actual;
 
-	/* minimum acceptable cdclk to satisfy bandwidth requirements */
+	/* minimum acceptable cdclk to satisfy DBUF bandwidth requirements */
-	int bw_min_cdclk;
+	int dbuf_bw_min_cdclk;
 	/* minimum acceptable cdclk for each pipe */
 	int min_cdclk[I915_MAX_PIPES];
 	/* minimum acceptable voltage level for each pipe */
@@ -145,6 +146,9 @@ struct intel_cdclk_state {
 	/* forced minimum cdclk for glk+ audio w/a */
 	int force_min_cdclk;
 
+	/* bitmask of enabled pipes */
+	u8 enabled_pipes;
+
 	/* bitmask of active pipes */
 	u8 active_pipes;
 
@@ -563,8 +567,7 @@ static void hsw_get_cdclk(struct intel_display *display,
 
 static int vlv_calc_cdclk(struct intel_display *display, int min_cdclk)
 {
-	struct drm_i915_private *dev_priv = to_i915(display->drm);
+	int freq_320 = (vlv_clock_get_hpll_vco(display->drm) <<  1) % 320000 != 0 ?
-	int freq_320 = (dev_priv->hpll_freq <<  1) % 320000 != 0 ?
 		333333 : 320000;
 
 	/*
@@ -584,8 +587,6 @@ static int vlv_calc_cdclk(struct intel_display *display, int min_cdclk)
 
 static u8 vlv_calc_voltage_level(struct intel_display *display, int cdclk)
 {
-	struct drm_i915_private *dev_priv = to_i915(display->drm);
-
 	if (display->platform.valleyview) {
 		if (cdclk >= 320000) /* jump to highest voltage for 400MHz too */
 			return 2;
@@ -599,7 +600,7 @@ static u8 vlv_calc_voltage_level(struct intel_display *display, int cdclk)
 		 * hardware has shown that we just need to write the desired
 		 * CCK divider into the Punit register.
 		 */
-		return DIV_ROUND_CLOSEST(dev_priv->hpll_freq << 1, cdclk) - 1;
+		return DIV_ROUND_CLOSEST(vlv_clock_get_hpll_vco(display->drm) << 1, cdclk) - 1;
 	}
 }
 
@@ -608,17 +609,12 @@ static void vlv_get_cdclk(struct intel_display *display,
 {
 	u32 val;
 
-	vlv_iosf_sb_get(display->drm, BIT(VLV_IOSF_SB_CCK) | BIT(VLV_IOSF_SB_PUNIT));
+	cdclk_config->vco = vlv_clock_get_hpll_vco(display->drm);
-
+	cdclk_config->cdclk = vlv_clock_get_cdclk(display->drm);
-	cdclk_config->vco = vlv_get_hpll_vco(display->drm);
-	cdclk_config->cdclk = vlv_get_cck_clock(display->drm, "cdclk",
-						CCK_DISPLAY_CLOCK_CONTROL,
-						cdclk_config->vco);
 
+	vlv_punit_get(display->drm);
 	val = vlv_punit_read(display->drm, PUNIT_REG_DSPSSPM);
-
+	vlv_punit_put(display->drm);
-	vlv_iosf_sb_put(display->drm,
-			BIT(VLV_IOSF_SB_CCK) | BIT(VLV_IOSF_SB_PUNIT));
 
 	if (display->platform.valleyview)
 		cdclk_config->voltage_level = (val & DSPFREQGUAR_MASK) >>
@@ -630,7 +626,6 @@ static void vlv_get_cdclk(struct intel_display *display,
 
 static void vlv_program_pfi_credits(struct intel_display *display)
 {
-	struct drm_i915_private *dev_priv = to_i915(display->drm);
 	unsigned int credits, default_credits;
 
 	if (display->platform.cherryview)
@@ -638,7 +633,7 @@ static void vlv_program_pfi_credits(struct intel_display *display)
 	else
 		default_credits = PFI_CREDIT(8);
 
-	if (display->cdclk.hw.cdclk >= dev_priv->czclk_freq) {
+	if (display->cdclk.hw.cdclk >= vlv_clock_get_czclk(display->drm)) {
 		/* CHV suggested value is 31 or 63 */
 		if (display->platform.cherryview)
 			credits = PFI_CREDIT_63;
@@ -670,7 +665,6 @@ static void vlv_set_cdclk(struct intel_display *display,
 			  const struct intel_cdclk_config *cdclk_config,
 			  enum pipe pipe)
 {
-	struct drm_i915_private *dev_priv = to_i915(display->drm);
 	int cdclk = cdclk_config->cdclk;
 	u32 val, cmd = cdclk_config->voltage_level;
 	intel_wakeref_t wakeref;
@@ -715,7 +709,7 @@ static void vlv_set_cdclk(struct intel_display *display,
 	if (cdclk == 400000) {
 		u32 divider;
 
-		divider = DIV_ROUND_CLOSEST(dev_priv->hpll_freq << 1,
+		divider = DIV_ROUND_CLOSEST(vlv_clock_get_hpll_vco(display->drm) << 1,
 					    cdclk) - 1;
 
 		/* adjust cdclk divider */
@@ -1567,7 +1561,7 @@ static int bxt_calc_cdclk(struct intel_display *display, int min_cdclk)
 	drm_WARN(display->drm, 1,
 		 "Cannot satisfy minimum cdclk %d with refclk %u\n",
 		 min_cdclk, display->cdclk.hw.ref);
-	return 0;
+	return display->cdclk.max_cdclk_freq;
 }
 
 static int bxt_calc_cdclk_pll_vco(struct intel_display *display, int cdclk)
@@ -2600,6 +2594,12 @@ static void intel_set_cdclk(struct intel_display *display,
 	}
 }
 
+static bool dg2_power_well_count(struct intel_display *display,
+				 const struct intel_cdclk_state *cdclk_state)
+{
+	return display->platform.dg2 ? hweight8(cdclk_state->active_pipes) : 0;
+}
+
 static void intel_cdclk_pcode_pre_notify(struct intel_atomic_state *state)
 {
 	struct intel_display *display = to_intel_display(state);
@@ -2612,16 +2612,16 @@ static void intel_cdclk_pcode_pre_notify(struct intel_atomic_state *state)
 
 	if (!intel_cdclk_changed(&old_cdclk_state->actual,
 				 &new_cdclk_state->actual) &&
-				 new_cdclk_state->active_pipes ==
+	    dg2_power_well_count(display, old_cdclk_state) ==
-				 old_cdclk_state->active_pipes)
+	    dg2_power_well_count(display, new_cdclk_state))
 		return;
 
 	/* According to "Sequence Before Frequency Change", voltage level set to 0x3 */
 	voltage_level = DISPLAY_TO_PCODE_VOLTAGE_MAX;
 
 	change_cdclk = new_cdclk_state->actual.cdclk != old_cdclk_state->actual.cdclk;
-	update_pipe_count = hweight8(new_cdclk_state->active_pipes) >
+	update_pipe_count = dg2_power_well_count(display, new_cdclk_state) >
-			    hweight8(old_cdclk_state->active_pipes);
+		dg2_power_well_count(display, old_cdclk_state);
 
 	/*
 	 * According to "Sequence Before Frequency Change",
@@ -2639,7 +2639,7 @@ static void intel_cdclk_pcode_pre_notify(struct intel_atomic_state *state)
 	 * no action if it is decreasing, before the change
 	 */
 	if (update_pipe_count)
-		num_active_pipes = hweight8(new_cdclk_state->active_pipes);
+		num_active_pipes = dg2_power_well_count(display, new_cdclk_state);
 
 	intel_pcode_notify(display, voltage_level, num_active_pipes, cdclk,
 			   change_cdclk, update_pipe_count);
@@ -2659,8 +2659,8 @@ static void intel_cdclk_pcode_post_notify(struct intel_atomic_state *state)
 	voltage_level = new_cdclk_state->actual.voltage_level;
 
 	update_cdclk = new_cdclk_state->actual.cdclk != old_cdclk_state->actual.cdclk;
-	update_pipe_count = hweight8(new_cdclk_state->active_pipes) <
+	update_pipe_count = dg2_power_well_count(display, new_cdclk_state) <
-			    hweight8(old_cdclk_state->active_pipes);
+		dg2_power_well_count(display, old_cdclk_state);
 
 	/*
 	 * According to "Sequence After Frequency Change",
@@ -2676,7 +2676,7 @@ static void intel_cdclk_pcode_post_notify(struct intel_atomic_state *state)
 	 * no action if it is increasing, after the change
 	 */
 	if (update_pipe_count)
-		num_active_pipes = hweight8(new_cdclk_state->active_pipes);
+		num_active_pipes = dg2_power_well_count(display, new_cdclk_state);
 
 	intel_pcode_notify(display, voltage_level, num_active_pipes, cdclk,
 			   update_cdclk, update_pipe_count);
@@ -2711,6 +2711,9 @@ intel_set_cdclk_pre_plane_update(struct intel_atomic_state *state)
 	struct intel_cdclk_config cdclk_config;
 	enum pipe pipe;
 
+	if (!new_cdclk_state)
+		return;
+
 	if (!intel_cdclk_changed(&old_cdclk_state->actual,
 				 &new_cdclk_state->actual))
 		return;
@@ -2763,6 +2766,9 @@ intel_set_cdclk_post_plane_update(struct intel_atomic_state *state)
 		intel_atomic_get_new_cdclk_state(state);
 	enum pipe pipe;
 
+	if (!new_cdclk_state)
+		return;
+
 	if (!intel_cdclk_changed(&old_cdclk_state->actual,
 				 &new_cdclk_state->actual))
 		return;
@@ -2800,16 +2806,20 @@ static int intel_cdclk_guardband(struct intel_display *display)
 		return 90;
 }
 
-static int intel_pixel_rate_to_cdclk(const struct intel_crtc_state *crtc_state)
+static int _intel_pixel_rate_to_cdclk(const struct intel_crtc_state *crtc_state, int pixel_rate)
 {
 	struct intel_display *display = to_intel_display(crtc_state);
 	int ppc = intel_cdclk_ppc(display, crtc_state->double_wide);
 	int guardband = intel_cdclk_guardband(display);
-	int pixel_rate = crtc_state->pixel_rate;
 
 	return DIV_ROUND_UP(pixel_rate * 100, guardband * ppc);
 }
 
+static int intel_pixel_rate_to_cdclk(const struct intel_crtc_state *crtc_state)
+{
+	return _intel_pixel_rate_to_cdclk(crtc_state, crtc_state->pixel_rate);
+}
+
 static int intel_planes_min_cdclk(const struct intel_crtc_state *crtc_state)
 {
 	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
@@ -2818,12 +2828,12 @@ static int intel_planes_min_cdclk(const struct intel_crtc_state *crtc_state)
 	int min_cdclk = 0;
 
 	for_each_intel_plane_on_crtc(display->drm, crtc, plane)
-		min_cdclk = max(min_cdclk, crtc_state->min_cdclk[plane->id]);
+		min_cdclk = max(min_cdclk, crtc_state->plane_min_cdclk[plane->id]);
 
 	return min_cdclk;
 }
 
-static int intel_crtc_compute_min_cdclk(const struct intel_crtc_state *crtc_state)
+int intel_crtc_min_cdclk(const struct intel_crtc_state *crtc_state)
 {
 	int min_cdclk;
 
@@ -2831,6 +2841,8 @@ static int intel_crtc_compute_min_cdclk(const struct intel_crtc_state *crtc_stat
 		return 0;
 
 	min_cdclk = intel_pixel_rate_to_cdclk(crtc_state);
+	min_cdclk = max(min_cdclk, intel_crtc_bw_min_cdclk(crtc_state));
+	min_cdclk = max(min_cdclk, intel_fbc_min_cdclk(crtc_state));
 	min_cdclk = max(min_cdclk, hsw_ips_min_cdclk(crtc_state));
 	min_cdclk = max(min_cdclk, intel_audio_min_cdclk(crtc_state));
 	min_cdclk = max(min_cdclk, vlv_dsi_min_cdclk(crtc_state));
@@ -2840,51 +2852,110 @@ static int intel_crtc_compute_min_cdclk(const struct intel_crtc_state *crtc_stat
 	return min_cdclk;
 }
 
+static int intel_cdclk_update_crtc_min_cdclk(struct intel_atomic_state *state,
+					     struct intel_crtc *crtc,
+					     int old_min_cdclk, int new_min_cdclk,
+					     bool *need_cdclk_calc)
+{
+	struct intel_display *display = to_intel_display(state);
+	struct intel_cdclk_state *cdclk_state;
+	bool allow_cdclk_decrease = intel_any_crtc_needs_modeset(state);
+	int ret;
+
+	if (new_min_cdclk == old_min_cdclk)
+		return 0;
+
+	if (!allow_cdclk_decrease && new_min_cdclk < old_min_cdclk)
+		return 0;
+
+	cdclk_state = intel_atomic_get_cdclk_state(state);
+	if (IS_ERR(cdclk_state))
+		return PTR_ERR(cdclk_state);
+
+	old_min_cdclk = cdclk_state->min_cdclk[crtc->pipe];
+
+	if (new_min_cdclk == old_min_cdclk)
+		return 0;
+
+	if (!allow_cdclk_decrease && new_min_cdclk < old_min_cdclk)
+		return 0;
+
+	cdclk_state->min_cdclk[crtc->pipe] = new_min_cdclk;
+
+	ret = intel_atomic_lock_global_state(&cdclk_state->base);
+	if (ret)
+		return ret;
+
+	*need_cdclk_calc = true;
+
+	drm_dbg_kms(display->drm,
+		    "[CRTC:%d:%s] min cdclk: %d kHz -> %d kHz\n",
+		    crtc->base.base.id, crtc->base.name,
+		    old_min_cdclk, new_min_cdclk);
+
+	return 0;
+}
+
+int intel_cdclk_update_dbuf_bw_min_cdclk(struct intel_atomic_state *state,
+					 int old_min_cdclk, int new_min_cdclk,
+					 bool *need_cdclk_calc)
+{
+	struct intel_display *display = to_intel_display(state);
+	struct intel_cdclk_state *cdclk_state;
+	bool allow_cdclk_decrease = intel_any_crtc_needs_modeset(state);
+	int ret;
+
+	if (new_min_cdclk == old_min_cdclk)
+		return 0;
+
+	if (!allow_cdclk_decrease && new_min_cdclk < old_min_cdclk)
+		return 0;
+
+	cdclk_state = intel_atomic_get_cdclk_state(state);
+	if (IS_ERR(cdclk_state))
+		return PTR_ERR(cdclk_state);
+
+	old_min_cdclk = cdclk_state->dbuf_bw_min_cdclk;
+
+	if (new_min_cdclk == old_min_cdclk)
+		return 0;
+
+	if (!allow_cdclk_decrease && new_min_cdclk < old_min_cdclk)
+		return 0;
+
+	cdclk_state->dbuf_bw_min_cdclk = new_min_cdclk;
+
+	ret = intel_atomic_lock_global_state(&cdclk_state->base);
+	if (ret)
+		return ret;
+
+	*need_cdclk_calc = true;
+
+	drm_dbg_kms(display->drm,
+		    "dbuf bandwidth min cdclk: %d kHz -> %d kHz\n",
+		    old_min_cdclk, new_min_cdclk);
+
+	return 0;
+}
+
+static bool glk_cdclk_audio_wa_needed(struct intel_display *display,
+				      const struct intel_cdclk_state *cdclk_state)
+{
+	return display->platform.geminilake &&
+		cdclk_state->enabled_pipes &&
+		!is_power_of_2(cdclk_state->enabled_pipes);
+}
+
 static int intel_compute_min_cdclk(struct intel_atomic_state *state)
 {
 	struct intel_display *display = to_intel_display(state);
 	struct intel_cdclk_state *cdclk_state =
 		intel_atomic_get_new_cdclk_state(state);
-	const struct intel_bw_state *bw_state;
-	struct intel_crtc *crtc;
-	struct intel_crtc_state *crtc_state;
-	int min_cdclk, i;
 	enum pipe pipe;
+	int min_cdclk;
 
-	for_each_new_intel_crtc_in_state(state, crtc, crtc_state, i) {
+	min_cdclk = cdclk_state->force_min_cdclk;
-		int ret;
+	min_cdclk = max(min_cdclk, cdclk_state->dbuf_bw_min_cdclk);
-
-		min_cdclk = intel_crtc_compute_min_cdclk(crtc_state);
-		if (min_cdclk < 0)
-			return min_cdclk;
-
-		if (cdclk_state->min_cdclk[crtc->pipe] == min_cdclk)
-			continue;
-
-		cdclk_state->min_cdclk[crtc->pipe] = min_cdclk;
-
-		ret = intel_atomic_lock_global_state(&cdclk_state->base);
-		if (ret)
-			return ret;
-	}
-
-	bw_state = intel_atomic_get_new_bw_state(state);
-	if (bw_state) {
-		min_cdclk = intel_bw_min_cdclk(display, bw_state);
-
-		if (cdclk_state->bw_min_cdclk != min_cdclk) {
-			int ret;
-
-			cdclk_state->bw_min_cdclk = min_cdclk;
-
-			ret = intel_atomic_lock_global_state(&cdclk_state->base);
-			if (ret)
-				return ret;
-		}
-	}
-
-	min_cdclk = max(cdclk_state->force_min_cdclk,
-			cdclk_state->bw_min_cdclk);
 	for_each_pipe(display, pipe)
 		min_cdclk = max(min_cdclk, cdclk_state->min_cdclk[pipe]);
 
@@ -2896,8 +2967,7 @@ static int intel_compute_min_cdclk(struct intel_atomic_state *state)
 	 * by changing the cd2x divider (see glk_cdclk_table[]) and
 	 * thus a full modeset won't be needed then.
 	 */
-	if (display->platform.geminilake && cdclk_state->active_pipes &&
+	if (glk_cdclk_audio_wa_needed(display, cdclk_state))
-	    !is_power_of_2(cdclk_state->active_pipes))
 		min_cdclk = max(min_cdclk, 2 * 96000);
 
 	if (min_cdclk > display->cdclk.max_cdclk_freq) {
@@ -3183,38 +3253,66 @@ intel_atomic_get_cdclk_state(struct intel_atomic_state *state)
 	return to_intel_cdclk_state(cdclk_state);
 }
 
-int intel_cdclk_atomic_check(struct intel_atomic_state *state,
+static int intel_cdclk_modeset_checks(struct intel_atomic_state *state,
-			     bool *need_cdclk_calc)
+				      bool *need_cdclk_calc)
 {
+	struct intel_display *display = to_intel_display(state);
 	const struct intel_cdclk_state *old_cdclk_state;
-	const struct intel_cdclk_state *new_cdclk_state;
+	struct intel_cdclk_state *new_cdclk_state;
-	struct intel_plane_state __maybe_unused *plane_state;
-	struct intel_plane *plane;
 	int ret;
-	int i;
 
-	/*
+	if (!intel_any_crtc_enable_changed(state) &&
-	 * active_planes bitmask has been updated, and potentially affected
+	    !intel_any_crtc_active_changed(state))
-	 * planes are part of the state. We can now compute the minimum cdclk
+		return 0;
-	 * for each plane.
-	 */
-	for_each_new_intel_plane_in_state(state, plane, plane_state, i) {
-		ret = intel_plane_calc_min_cdclk(state, plane, need_cdclk_calc);
-		if (ret)
-			return ret;
-	}
 
-	ret = intel_bw_calc_min_cdclk(state, need_cdclk_calc);
+	new_cdclk_state = intel_atomic_get_cdclk_state(state);
+	if (IS_ERR(new_cdclk_state))
+		return PTR_ERR(new_cdclk_state);
+
+	old_cdclk_state = intel_atomic_get_old_cdclk_state(state);
+
+	new_cdclk_state->enabled_pipes =
+		intel_calc_enabled_pipes(state, old_cdclk_state->enabled_pipes);
+
+	new_cdclk_state->active_pipes =
+		intel_calc_active_pipes(state, old_cdclk_state->active_pipes);
+
+	ret = intel_atomic_lock_global_state(&new_cdclk_state->base);
 	if (ret)
 		return ret;
 
-	old_cdclk_state = intel_atomic_get_old_cdclk_state(state);
+	if (!old_cdclk_state->active_pipes != !new_cdclk_state->active_pipes)
-	new_cdclk_state = intel_atomic_get_new_cdclk_state(state);
-
-	if (new_cdclk_state &&
-	    old_cdclk_state->force_min_cdclk != new_cdclk_state->force_min_cdclk)
 		*need_cdclk_calc = true;
 
+	if (glk_cdclk_audio_wa_needed(display, old_cdclk_state) !=
+	    glk_cdclk_audio_wa_needed(display, new_cdclk_state))
+		*need_cdclk_calc = true;
+
+	if (dg2_power_well_count(display, old_cdclk_state) !=
+	    dg2_power_well_count(display, new_cdclk_state))
+		*need_cdclk_calc = true;
+
+	return 0;
+}
+
+static int intel_crtcs_calc_min_cdclk(struct intel_atomic_state *state,
+				      bool *need_cdclk_calc)
+{
+	const struct intel_crtc_state *old_crtc_state;
+	const struct intel_crtc_state *new_crtc_state;
+	struct intel_crtc *crtc;
+	int i, ret;
+
+	for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state,
+					    new_crtc_state, i) {
+		ret = intel_cdclk_update_crtc_min_cdclk(state, crtc,
+							old_crtc_state->min_cdclk,
+							new_crtc_state->min_cdclk,
+							need_cdclk_calc);
+		if (ret)
+			return ret;
+	}
+
 	return 0;
 }
 
@@ -3250,18 +3348,17 @@ static bool intel_cdclk_need_serialize(struct intel_display *display,
 				       const struct intel_cdclk_state *old_cdclk_state,
 				       const struct intel_cdclk_state *new_cdclk_state)
 {
-	bool power_well_cnt_changed = hweight8(old_cdclk_state->active_pipes) !=
-				      hweight8(new_cdclk_state->active_pipes);
-	bool cdclk_changed = intel_cdclk_changed(&old_cdclk_state->actual,
-						 &new_cdclk_state->actual);
 	/*
-	 * We need to poke hw for gen >= 12, because we notify PCode if
+	 * We need to poke hw for DG2, because we notify PCode if
 	 * pipe power well count changes.
 	 */
-	return cdclk_changed || (display->platform.dg2 && power_well_cnt_changed);
+	return intel_cdclk_changed(&old_cdclk_state->actual,
+				   &new_cdclk_state->actual) ||
+		dg2_power_well_count(display, old_cdclk_state) !=
+		dg2_power_well_count(display, new_cdclk_state);
 }
 
-int intel_modeset_calc_cdclk(struct intel_atomic_state *state)
+static int intel_modeset_calc_cdclk(struct intel_atomic_state *state)
 {
 	struct intel_display *display = to_intel_display(state);
 	const struct intel_cdclk_state *old_cdclk_state;
@@ -3275,9 +3372,6 @@ int intel_modeset_calc_cdclk(struct intel_atomic_state *state)
 
 	old_cdclk_state = intel_atomic_get_old_cdclk_state(state);
 
-	new_cdclk_state->active_pipes =
-		intel_calc_active_pipes(state, old_cdclk_state->active_pipes);
-
 	ret = intel_cdclk_modeset_calc_cdclk(state);
 	if (ret)
 		return ret;
@@ -3290,9 +3384,7 @@ int intel_modeset_calc_cdclk(struct intel_atomic_state *state)
 		ret = intel_atomic_serialize_global_state(&new_cdclk_state->base);
 		if (ret)
 			return ret;
-	} else if (old_cdclk_state->active_pipes != new_cdclk_state->active_pipes ||
+	} else if (intel_cdclk_changed(&old_cdclk_state->logical,
-		   old_cdclk_state->force_min_cdclk != new_cdclk_state->force_min_cdclk ||
-		   intel_cdclk_changed(&old_cdclk_state->logical,
 				       &new_cdclk_state->logical)) {
 		ret = intel_atomic_lock_global_state(&new_cdclk_state->base);
 		if (ret)
@@ -3374,14 +3466,55 @@ int intel_modeset_calc_cdclk(struct intel_atomic_state *state)
 	return 0;
 }
 
+int intel_cdclk_atomic_check(struct intel_atomic_state *state)
+{
+	const struct intel_cdclk_state *old_cdclk_state;
+	struct intel_cdclk_state *new_cdclk_state;
+	bool need_cdclk_calc = false;
+	int ret;
+
+	ret = intel_cdclk_modeset_checks(state, &need_cdclk_calc);
+	if (ret)
+		return ret;
+
+	ret = intel_crtcs_calc_min_cdclk(state, &need_cdclk_calc);
+	if (ret)
+		return ret;
+
+	ret = intel_dbuf_bw_calc_min_cdclk(state, &need_cdclk_calc);
+	if (ret)
+		return ret;
+
+	old_cdclk_state = intel_atomic_get_old_cdclk_state(state);
+	new_cdclk_state = intel_atomic_get_new_cdclk_state(state);
+
+	if (new_cdclk_state &&
+	    old_cdclk_state->force_min_cdclk != new_cdclk_state->force_min_cdclk) {
+		ret = intel_atomic_lock_global_state(&new_cdclk_state->base);
+		if (ret)
+			return ret;
+
+		need_cdclk_calc = true;
+	}
+
+	if (need_cdclk_calc) {
+		ret = intel_modeset_calc_cdclk(state);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
 void intel_cdclk_update_hw_state(struct intel_display *display)
 {
-	const struct intel_bw_state *bw_state =
+	const struct intel_dbuf_bw_state *dbuf_bw_state =
-		to_intel_bw_state(display->bw.obj.state);
+		to_intel_dbuf_bw_state(display->dbuf_bw.obj.state);
 	struct intel_cdclk_state *cdclk_state =
 		to_intel_cdclk_state(display->cdclk.obj.state);
 	struct intel_crtc *crtc;
 
+	cdclk_state->enabled_pipes = 0;
 	cdclk_state->active_pipes = 0;
 
 	for_each_intel_crtc(display->drm, crtc) {
@@ -3389,14 +3522,16 @@ void intel_cdclk_update_hw_state(struct intel_display *display)
 			to_intel_crtc_state(crtc->base.state);
 		enum pipe pipe = crtc->pipe;
 
+		if (crtc_state->hw.enable)
+			cdclk_state->enabled_pipes |= BIT(pipe);
 		if (crtc_state->hw.active)
 			cdclk_state->active_pipes |= BIT(pipe);
 
-		cdclk_state->min_cdclk[pipe] = intel_crtc_compute_min_cdclk(crtc_state);
+		cdclk_state->min_cdclk[pipe] = crtc_state->min_cdclk;
 		cdclk_state->min_voltage_level[pipe] = crtc_state->min_voltage_level;
 	}
 
-	cdclk_state->bw_min_cdclk = intel_bw_min_cdclk(display, bw_state);
+	cdclk_state->dbuf_bw_min_cdclk = intel_dbuf_bw_min_cdclk(display, dbuf_bw_state);
 }
 
 void intel_cdclk_crtc_disable_noatomic(struct intel_crtc *crtc)
@@ -3565,13 +3700,6 @@ static int pch_rawclk(struct intel_display *display)
 	return (intel_de_read(display, PCH_RAWCLK_FREQ) & RAWCLK_FREQ_MASK) * 1000;
 }
 
-static int vlv_hrawclk(struct intel_display *display)
-{
-	/* RAWCLK_FREQ_VLV register updated from power well code */
-	return vlv_get_cck_clock_hpll(display->drm, "hrawclk",
-				      CCK_DISPLAY_REF_CLOCK_CONTROL);
-}
-
 static int i9xx_hrawclk(struct intel_display *display)
 {
 	struct drm_i915_private *i915 = to_i915(display->drm);
@@ -3605,7 +3733,7 @@ u32 intel_read_rawclk(struct intel_display *display)
 	else if (HAS_PCH_SPLIT(display))
 		freq = pch_rawclk(display);
 	else if (display->platform.valleyview || display->platform.cherryview)
-		freq = vlv_hrawclk(display);
+		freq = vlv_clock_get_hrawclk(display->drm);
 	else if (DISPLAY_VER(display) >= 3)
 		freq = i9xx_hrawclk(display);
 	else
@@ -3897,11 +4025,6 @@ int intel_cdclk_min_cdclk(const struct intel_cdclk_state *cdclk_state, enum pipe
 	return cdclk_state->min_cdclk[pipe];
 }
 
-int intel_cdclk_bw_min_cdclk(const struct intel_cdclk_state *cdclk_state)
-{
-	return cdclk_state->bw_min_cdclk;
-}
-
 bool intel_cdclk_pmdemand_needs_update(struct intel_atomic_state *state)
 {
 	const struct intel_cdclk_state *new_cdclk_state, *old_cdclk_state;
@@ -3933,3 +4056,75 @@ void intel_cdclk_read_hw(struct intel_display *display)
 	cdclk_state->actual = display->cdclk.hw;
 	cdclk_state->logical = display->cdclk.hw;
 }
+
+static int calc_cdclk(const struct intel_crtc_state *crtc_state, int min_cdclk)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+
+	if (DISPLAY_VER(display) >= 10 || display->platform.broxton) {
+		return bxt_calc_cdclk(display, min_cdclk);
+	} else if (DISPLAY_VER(display) == 9) {
+		int vco;
+
+		vco = display->cdclk.skl_preferred_vco_freq;
+		if (vco == 0)
+			vco = 8100000;
+
+		return skl_calc_cdclk(min_cdclk, vco);
+	} else if (display->platform.broadwell) {
+		return bdw_calc_cdclk(min_cdclk);
+	} else if (display->platform.cherryview || display->platform.valleyview) {
+		return vlv_calc_cdclk(display, min_cdclk);
+	} else {
+		return display->cdclk.max_cdclk_freq;
+	}
+}
+
+static unsigned int _intel_cdclk_prefill_adj(const struct intel_crtc_state *crtc_state,
+					     int clock, int min_cdclk)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+	int ppc = intel_cdclk_ppc(display, crtc_state->double_wide);
+	int cdclk = calc_cdclk(crtc_state, min_cdclk);
+
+	return min(0x10000, DIV_ROUND_UP_ULL((u64)clock << 16, ppc * cdclk));
+}
+
+unsigned int intel_cdclk_prefill_adjustment(const struct intel_crtc_state *crtc_state)
+{
+	/* FIXME use the actual min_cdclk for the pipe here */
+	return intel_cdclk_prefill_adjustment_worst(crtc_state);
+}
+
+unsigned int intel_cdclk_prefill_adjustment_worst(const struct intel_crtc_state *crtc_state)
+{
+	int clock = crtc_state->hw.pipe_mode.crtc_clock;
+	int min_cdclk;
+
+	/*
+	 * FIXME could perhaps consider a few more of the factors
+	 * that go the per-crtc min_cdclk. Namely anything that
+	 * only changes during full modesets.
+	 *
+	 * FIXME this assumes 1:1 scaling, but the other _worst() stuff
+	 * assumes max downscaling, so the final result will be
+	 * unrealistically bad. Figure out where the actual maximum value
+	 * lies and use that to compute a more realistic worst case
+	 * estimate...
+	 */
+	min_cdclk = _intel_pixel_rate_to_cdclk(crtc_state, clock);
+
+	return _intel_cdclk_prefill_adj(crtc_state, clock, min_cdclk);
+}
+
+int intel_cdclk_min_cdclk_for_prefill(const struct intel_crtc_state *crtc_state,
+				      unsigned int prefill_lines_unadjusted,
+				      unsigned int prefill_lines_available)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+	const struct drm_display_mode *pipe_mode = &crtc_state->hw.pipe_mode;
+	int ppc = intel_cdclk_ppc(display, crtc_state->double_wide);
+
+	return DIV_ROUND_UP_ULL(mul_u32_u32(pipe_mode->crtc_clock, prefill_lines_unadjusted),
+				ppc * prefill_lines_available);
+}

drivers/gpu/drm/i915/display/intel_cdclk.h

@@ -38,16 +38,17 @@ void intel_set_cdclk_post_plane_update(struct intel_atomic_state *state);
 void intel_cdclk_dump_config(struct intel_display *display,
 			     const struct intel_cdclk_config *cdclk_config,
 			     const char *context);
-int intel_modeset_calc_cdclk(struct intel_atomic_state *state);
 void intel_cdclk_get_cdclk(struct intel_display *display,
 			   struct intel_cdclk_config *cdclk_config);
-int intel_cdclk_atomic_check(struct intel_atomic_state *state,
+int intel_cdclk_atomic_check(struct intel_atomic_state *state);
-			     bool *need_cdclk_calc);
 int intel_cdclk_state_set_joined_mbus(struct intel_atomic_state *state, bool joined_mbus);
 struct intel_cdclk_state *
 intel_atomic_get_cdclk_state(struct intel_atomic_state *state);
 void intel_cdclk_update_hw_state(struct intel_display *display);
 void intel_cdclk_crtc_disable_noatomic(struct intel_crtc *crtc);
+int intel_cdclk_update_dbuf_bw_min_cdclk(struct intel_atomic_state *state,
+					 int old_min_cdclk, int new_min_cdclk,
+					 bool *need_cdclk_calc);
 
 #define to_intel_cdclk_state(global_state) \
 	container_of_const((global_state), struct intel_cdclk_state, base)
@@ -64,9 +65,16 @@ int intel_cdclk_logical(const struct intel_cdclk_state *cdclk_state);
 int intel_cdclk_actual(const struct intel_cdclk_state *cdclk_state);
 int intel_cdclk_actual_voltage_level(const struct intel_cdclk_state *cdclk_state);
 int intel_cdclk_min_cdclk(const struct intel_cdclk_state *cdclk_state, enum pipe pipe);
-int intel_cdclk_bw_min_cdclk(const struct intel_cdclk_state *cdclk_state);
 bool intel_cdclk_pmdemand_needs_update(struct intel_atomic_state *state);
 void intel_cdclk_force_min_cdclk(struct intel_cdclk_state *cdclk_state, int force_min_cdclk);
 void intel_cdclk_read_hw(struct intel_display *display);
 
+unsigned int intel_cdclk_prefill_adjustment(const struct intel_crtc_state *crtc_state);
+unsigned int intel_cdclk_prefill_adjustment_worst(const struct intel_crtc_state *crtc_state);
+int intel_cdclk_min_cdclk_for_prefill(const struct intel_crtc_state *crtc_state,
+				      unsigned int prefill_lines_unadjusted,
+				      unsigned int prefill_lines_available);
+
+int intel_crtc_min_cdclk(const struct intel_crtc_state *crtc_state);
+
 #endif /* __INTEL_CDCLK_H__ */

drivers/gpu/drm/i915/display/intel_color.c

@@ -24,12 +24,12 @@
 
 #include <drm/drm_print.h>
 
-#include "i915_utils.h"
 #include "i9xx_plane_regs.h"
 #include "intel_color.h"
 #include "intel_color_regs.h"
 #include "intel_de.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dsb.h"
 #include "intel_vrr.h"
 
@@ -2013,7 +2013,7 @@ void intel_color_prepare_commit(struct intel_atomic_state *state,
 
 	if (crtc_state->use_dsb && intel_color_uses_chained_dsb(crtc_state)) {
 		intel_vrr_send_push(crtc_state->dsb_color, crtc_state);
-		intel_dsb_wait_vblank_delay(state, crtc_state->dsb_color);
+		intel_dsb_wait_for_delayed_vblank(state, crtc_state->dsb_color);
 		intel_vrr_check_push_sent(crtc_state->dsb_color, crtc_state);
 		intel_dsb_interrupt(crtc_state->dsb_color);
 	}

drivers/gpu/drm/i915/display/intel_combo_phy.c

@@ -5,12 +5,12 @@
 
 #include <drm/drm_print.h>
 
-#include "i915_utils.h"
 #include "intel_combo_phy.h"
 #include "intel_combo_phy_regs.h"
 #include "intel_de.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 
 #define for_each_combo_phy(__display, __phy) \
 	for ((__phy) = PHY_A; (__phy) < I915_MAX_PHYS; (__phy)++)	\

drivers/gpu/drm/i915/display/intel_connector.c

@@ -31,7 +31,7 @@
 #include <drm/drm_probe_helper.h>
 
 #include "i915_drv.h"
-#include "i915_utils.h"
+#include "i915_utils.h" /* for i915_inject_probe_failure() */
 #include "intel_connector.h"
 #include "intel_display_core.h"
 #include "intel_display_debugfs.h"

drivers/gpu/drm/i915/display/intel_crtc.c

@@ -84,8 +84,13 @@ u32 intel_crtc_get_vblank_counter(struct intel_crtc *crtc)
 	if (!crtc->active)
 		return 0;
 
-	if (!vblank->max_vblank_count)
+	if (!vblank->max_vblank_count) {
-		return (u32)drm_crtc_accurate_vblank_count(&crtc->base);
+		/* On preempt-rt we cannot take the vblank spinlock since this function is called from tracepoints */
+		if (IS_ENABLED(CONFIG_PREEMPT_RT))
+			return (u32)drm_crtc_vblank_count(&crtc->base);
+		else
+			return (u32)drm_crtc_accurate_vblank_count(&crtc->base);
+	}
 
 	return crtc->base.funcs->get_vblank_counter(&crtc->base);
 }
@@ -390,6 +395,9 @@ int intel_crtc_init(struct intel_display *display, enum pipe pipe)
 
 	drm_WARN_ON(display->drm, drm_crtc_index(&crtc->base) != crtc->pipe);
 
+	if (HAS_CASF(display))
+		drm_crtc_create_sharpness_strength_property(&crtc->base);
+
 	return 0;
 
 fail:
@@ -748,3 +756,89 @@ void intel_pipe_update_end(struct intel_atomic_state *state,
 out:
 	intel_psr_unlock(new_crtc_state);
 }
+
+bool intel_crtc_enable_changed(const struct intel_crtc_state *old_crtc_state,
+			       const struct intel_crtc_state *new_crtc_state)
+{
+	return old_crtc_state->hw.enable != new_crtc_state->hw.enable;
+}
+
+bool intel_any_crtc_enable_changed(struct intel_atomic_state *state)
+{
+	const struct intel_crtc_state *old_crtc_state, *new_crtc_state;
+	struct intel_crtc *crtc;
+	int i;
+
+	for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state,
+					    new_crtc_state, i) {
+		if (intel_crtc_enable_changed(old_crtc_state, new_crtc_state))
+			return true;
+	}
+
+	return false;
+}
+
+bool intel_crtc_active_changed(const struct intel_crtc_state *old_crtc_state,
+			       const struct intel_crtc_state *new_crtc_state)
+{
+	return old_crtc_state->hw.active != new_crtc_state->hw.active;
+}
+
+bool intel_any_crtc_active_changed(struct intel_atomic_state *state)
+{
+	const struct intel_crtc_state *old_crtc_state, *new_crtc_state;
+	struct intel_crtc *crtc;
+	int i;
+
+	for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state,
+					    new_crtc_state, i) {
+		if (intel_crtc_active_changed(old_crtc_state, new_crtc_state))
+			return true;
+	}
+
+	return false;
+}
+
+unsigned int intel_crtc_bw_num_active_planes(const struct intel_crtc_state *crtc_state)
+{
+	/*
+	 * We assume cursors are small enough
+	 * to not cause bandwidth problems.
+	 */
+	return hweight8(crtc_state->active_planes & ~BIT(PLANE_CURSOR));
+}
+
+unsigned int intel_crtc_bw_data_rate(const struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+	unsigned int data_rate = 0;
+	enum plane_id plane_id;
+
+	for_each_plane_id_on_crtc(crtc, plane_id) {
+		/*
+		 * We assume cursors are small enough
+		 * to not cause bandwidth problems.
+		 */
+		if (plane_id == PLANE_CURSOR)
+			continue;
+
+		data_rate += crtc_state->data_rate[plane_id];
+
+		if (DISPLAY_VER(display) < 11)
+			data_rate += crtc_state->data_rate_y[plane_id];
+	}
+
+	return data_rate;
+}
+
+/* "Maximum Pipe Read Bandwidth" */
+int intel_crtc_bw_min_cdclk(const struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+
+	if (DISPLAY_VER(display) < 12)
+		return 0;
+
+	return DIV_ROUND_UP_ULL(mul_u32_u32(intel_crtc_bw_data_rate(crtc_state), 10), 512);
+}

drivers/gpu/drm/i915/display/intel_crtc.h

@@ -58,4 +58,15 @@ void intel_wait_for_vblank_if_active(struct intel_display *display,
 				     enum pipe pipe);
 void intel_crtc_wait_for_next_vblank(struct intel_crtc *crtc);
 
+bool intel_any_crtc_enable_changed(struct intel_atomic_state *state);
+bool intel_crtc_enable_changed(const struct intel_crtc_state *old_crtc_state,
+			       const struct intel_crtc_state *new_crtc_state);
+bool intel_any_crtc_active_changed(struct intel_atomic_state *state);
+bool intel_crtc_active_changed(const struct intel_crtc_state *old_crtc_state,
+			       const struct intel_crtc_state *new_crtc_state);
+
+unsigned int intel_crtc_bw_num_active_planes(const struct intel_crtc_state *crtc_state);
+unsigned int intel_crtc_bw_data_rate(const struct intel_crtc_state *crtc_state);
+int intel_crtc_bw_min_cdclk(const struct intel_crtc_state *crtc_state);
+
 #endif

drivers/gpu/drm/i915/display/intel_crtc_state_dump.c

@@ -289,10 +289,9 @@ void intel_crtc_state_dump(const struct intel_crtc_state *pipe_config,
 	drm_printf(&p, "scanline offset: %d\n",
 		   intel_crtc_scanline_offset(pipe_config));
 
-	drm_printf(&p, "vblank delay: %d, framestart delay: %d, MSA timing delay: %d\n",
+	drm_printf(&p, "framestart delay: %d, MSA timing delay: %d, set context latency: %d\n",
-		   pipe_config->hw.adjusted_mode.crtc_vblank_start -
+		   pipe_config->framestart_delay, pipe_config->msa_timing_delay,
-		   pipe_config->hw.adjusted_mode.crtc_vdisplay,
+		   pipe_config->set_context_latency);
-		   pipe_config->framestart_delay, pipe_config->msa_timing_delay);
 
 	drm_printf(&p, "vrr: %s, fixed rr: %s, vmin: %d, vmax: %d, flipline: %d, pipeline full: %d, guardband: %d vsync start: %d, vsync end: %d\n",
 		   str_yes_no(pipe_config->vrr.enable),
@@ -313,9 +312,9 @@ void intel_crtc_state_dump(const struct intel_crtc_state *pipe_config,
 	drm_printf(&p, "pipe mode: " DRM_MODE_FMT "\n",
 		   DRM_MODE_ARG(&pipe_config->hw.pipe_mode));
 	intel_dump_crtc_timings(&p, &pipe_config->hw.pipe_mode);
-	drm_printf(&p, "port clock: %d, pipe src: " DRM_RECT_FMT ", pixel rate %d\n",
+	drm_printf(&p, "port clock: %d, pipe src: " DRM_RECT_FMT ", pixel rate %d, min cdclk %d\n",
 		   pipe_config->port_clock, DRM_RECT_ARG(&pipe_config->pipe_src),
-		   pipe_config->pixel_rate);
+		   pipe_config->pixel_rate, pipe_config->min_cdclk);
 
 	drm_printf(&p, "linetime: %d, ips linetime: %d\n",
 		   pipe_config->linetime, pipe_config->ips_linetime);
@@ -373,6 +372,11 @@ void intel_crtc_state_dump(const struct intel_crtc_state *pipe_config,
 
 	intel_vdsc_state_dump(&p, 0, pipe_config);
 
+	drm_printf(&p, "sharpness strength: %d, sharpness tap size: %d, sharpness enable: %d\n",
+		   pipe_config->hw.casf_params.strength,
+		   pipe_config->hw.casf_params.win_size,
+		   pipe_config->hw.casf_params.casf_enable);
+
 dump_planes:
 	if (!state)
 		return;

drivers/gpu/drm/i915/display/intel_cursor.c

@@ -12,13 +12,13 @@
 #include <drm/drm_print.h>
 #include <drm/drm_vblank.h>
 
-#include "i915_utils.h"
 #include "intel_atomic.h"
 #include "intel_cursor.h"
 #include "intel_cursor_regs.h"
 #include "intel_de.h"
 #include "intel_display.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_fb.h"
 #include "intel_fb_pin.h"
 #include "intel_frontbuffer.h"
@@ -662,7 +662,7 @@ static void i9xx_cursor_update_arm(struct intel_dsb *dsb,
 		cntl = plane_state->ctl |
 			i9xx_cursor_ctl_crtc(crtc_state);
 
-		if (width != height)
+		if (DISPLAY_VER(display) < 14 && width != height)
 			fbc_ctl = CUR_FBC_EN | CUR_FBC_HEIGHT(height - 1);
 
 		base = plane_state->surf;

drivers/gpu/drm/i915/display/intel_cx0_phy.c

@@ -8,7 +8,6 @@
 
 #include <drm/drm_print.h>
 
-#include "i915_utils.h"
 #include "intel_alpm.h"
 #include "intel_cx0_phy.h"
 #include "intel_cx0_phy_regs.h"
@@ -16,16 +15,15 @@
 #include "intel_ddi_buf_trans.h"
 #include "intel_de.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dp.h"
 #include "intel_hdmi.h"
+#include "intel_lt_phy.h"
 #include "intel_panel.h"
 #include "intel_psr.h"
 #include "intel_snps_hdmi_pll.h"
 #include "intel_tc.h"
 
-#define MB_WRITE_COMMITTED      true
-#define MB_WRITE_UNCOMMITTED    false
-
 #define for_each_cx0_lane_in_mask(__lane_mask, __lane) \
 	for ((__lane) = 0; (__lane) < 2; (__lane)++) \
 		for_each_if((__lane_mask) & BIT(__lane))
@@ -39,14 +37,12 @@ bool intel_encoder_is_c10phy(struct intel_encoder *encoder)
 	struct intel_display *display = to_intel_display(encoder);
 	enum phy phy = intel_encoder_to_phy(encoder);
 
-	/* PTL doesn't have a PHY connected to PORT B; as such,
+	if (display->platform.pantherlake) {
-	 * there will never be a case where PTL uses PHY B.
+		if (display->platform.pantherlake_wildcatlake)
-	 * WCL uses PORT A and B with the C10 PHY.
+			return phy <= PHY_B;
-	 * Reusing the condition for WCL and extending it for PORT B
+		else
-	 * should not cause any issues for PTL.
+			return phy == PHY_A;
-	 */
+	}
-	if (display->platform.pantherlake && phy < PHY_C)
-		return true;
 
 	if ((display->platform.lunarlake || display->platform.meteorlake) && phy < PHY_C)
 		return true;
@@ -130,8 +126,8 @@ static void intel_cx0_phy_transaction_end(struct intel_encoder *encoder, intel_w
 	intel_display_power_put(display, POWER_DOMAIN_DC_OFF, wakeref);
 }
 
-static void intel_clear_response_ready_flag(struct intel_encoder *encoder,
+void intel_clear_response_ready_flag(struct intel_encoder *encoder,
-					    int lane)
+				     int lane)
 {
 	struct intel_display *display = to_intel_display(encoder);
 
@@ -140,7 +136,7 @@ static void intel_clear_response_ready_flag(struct intel_encoder *encoder,
 		     0, XELPDP_PORT_P2M_RESPONSE_READY | XELPDP_PORT_P2M_ERROR_SET);
 }
 
-static void intel_cx0_bus_reset(struct intel_encoder *encoder, int lane)
+void intel_cx0_bus_reset(struct intel_encoder *encoder, int lane)
 {
 	struct intel_display *display = to_intel_display(encoder);
 	enum port port = encoder->port;
@@ -161,8 +157,8 @@ static void intel_cx0_bus_reset(struct intel_encoder *encoder, int lane)
 	intel_clear_response_ready_flag(encoder, lane);
 }
 
-static int intel_cx0_wait_for_ack(struct intel_encoder *encoder,
+int intel_cx0_wait_for_ack(struct intel_encoder *encoder,
-				  int command, int lane, u32 *val)
+			   int command, int lane, u32 *val)
 {
 	struct intel_display *display = to_intel_display(encoder);
 	enum port port = encoder->port;
@@ -273,8 +269,7 @@ static u8 __intel_cx0_read(struct intel_encoder *encoder,
 	return 0;
 }
 
-static u8 intel_cx0_read(struct intel_encoder *encoder,
+u8 intel_cx0_read(struct intel_encoder *encoder, u8 lane_mask, u16 addr)
-			 u8 lane_mask, u16 addr)
 {
 	int lane = lane_mask_to_lane(lane_mask);
 
@@ -361,8 +356,8 @@ static void __intel_cx0_write(struct intel_encoder *encoder,
 		     "PHY %c Write %04x failed after %d retries.\n", phy_name(phy), addr, i);
 }
 
-static void intel_cx0_write(struct intel_encoder *encoder,
+void intel_cx0_write(struct intel_encoder *encoder,
-			    u8 lane_mask, u16 addr, u8 data, bool committed)
+		     u8 lane_mask, u16 addr, u8 data, bool committed)
 {
 	int lane;
 
@@ -414,8 +409,8 @@ static void __intel_cx0_rmw(struct intel_encoder *encoder,
 		__intel_cx0_write(encoder, lane, addr, val, committed);
 }
 
-static void intel_cx0_rmw(struct intel_encoder *encoder,
+void intel_cx0_rmw(struct intel_encoder *encoder,
-			  u8 lane_mask, u16 addr, u8 clear, u8 set, bool committed)
+		   u8 lane_mask, u16 addr, u8 clear, u8 set, bool committed)
 {
 	u8 lane;
 
@@ -2105,6 +2100,9 @@ static int intel_c10pll_calc_state(struct intel_crtc_state *crtc_state,
 	return 0;
 }
 
+static int intel_c10pll_calc_port_clock(struct intel_encoder *encoder,
+					const struct intel_c10pll_state *pll_state);
+
 static void intel_c10pll_readout_hw_state(struct intel_encoder *encoder,
 					  struct intel_c10pll_state *pll_state)
 {
@@ -2129,6 +2127,8 @@ static void intel_c10pll_readout_hw_state(struct intel_encoder *encoder,
 	pll_state->tx = intel_cx0_read(encoder, lane, PHY_C10_VDR_TX(0));
 
 	intel_cx0_phy_transaction_end(encoder, wakeref);
+
+	pll_state->clock = intel_c10pll_calc_port_clock(encoder, pll_state);
 }
 
 static void intel_c10_pll_program(struct intel_display *display,
@@ -2587,20 +2587,6 @@ static bool is_dp2(u32 clock)
 	return false;
 }
 
-static bool is_hdmi_frl(u32 clock)
-{
-	switch (clock) {
-	case 300000: /* 3 Gbps */
-	case 600000: /* 6 Gbps */
-	case 800000: /* 8 Gbps */
-	case 1000000: /* 10 Gbps */
-	case 1200000: /* 12 Gbps */
-		return true;
-	default:
-		return false;
-	}
-}
-
 static bool intel_c20_protocol_switch_valid(struct intel_encoder *encoder)
 {
 	struct intel_digital_port *intel_dig_port = enc_to_dig_port(encoder);
@@ -2614,7 +2600,7 @@ static int intel_get_c20_custom_width(u32 clock, bool dp)
 {
 	if (dp && is_dp2(clock))
 		return 2;
-	else if (is_hdmi_frl(clock))
+	else if (intel_hdmi_is_frl(clock))
 		return 1;
 	else
 		return 0;
@@ -2626,11 +2612,13 @@ static void intel_c20_pll_program(struct intel_display *display,
 				  bool is_dp, int port_clock)
 {
 	u8 owned_lane_mask = intel_cx0_get_owned_lane_mask(encoder);
+	u8 serdes;
 	bool cntx;
 	int i;
 
 	/* 1. Read current context selection */
-	cntx = intel_cx0_read(encoder, INTEL_CX0_LANE0, PHY_C20_VDR_CUSTOM_SERDES_RATE) & BIT(0);
+	cntx = intel_cx0_read(encoder, INTEL_CX0_LANE0, PHY_C20_VDR_CUSTOM_SERDES_RATE) &
+		PHY_C20_CONTEXT_TOGGLE;
 
 	/*
 	 * 2. If there is a protocol switch from HDMI to DP or vice versa, clear
@@ -2700,28 +2688,31 @@ static void intel_c20_pll_program(struct intel_display *display,
 		      MB_WRITE_COMMITTED);
 
 	/* 5. For DP or 6. For HDMI */
-	if (is_dp) {
+	serdes = 0;
-		intel_cx0_rmw(encoder, owned_lane_mask, PHY_C20_VDR_CUSTOM_SERDES_RATE,
+	if (is_dp)
-			      BIT(6) | PHY_C20_CUSTOM_SERDES_MASK,
+		serdes = PHY_C20_IS_DP |
-			      BIT(6) | PHY_C20_CUSTOM_SERDES(intel_c20_get_dp_rate(port_clock)),
+			 PHY_C20_DP_RATE(intel_c20_get_dp_rate(port_clock));
-			      MB_WRITE_COMMITTED);
+	else if (intel_hdmi_is_frl(port_clock))
-	} else {
+		serdes = PHY_C20_IS_HDMI_FRL;
-		intel_cx0_rmw(encoder, owned_lane_mask, PHY_C20_VDR_CUSTOM_SERDES_RATE,
-			      BIT(7) | PHY_C20_CUSTOM_SERDES_MASK,
-			      is_hdmi_frl(port_clock) ? BIT(7) : 0,
-			      MB_WRITE_COMMITTED);
 
-		intel_cx0_write(encoder, INTEL_CX0_BOTH_LANES, PHY_C20_VDR_HDMI_RATE,
+	intel_cx0_rmw(encoder, owned_lane_mask, PHY_C20_VDR_CUSTOM_SERDES_RATE,
-				intel_c20_get_hdmi_rate(port_clock),
+		      PHY_C20_IS_DP | PHY_C20_DP_RATE_MASK | PHY_C20_IS_HDMI_FRL,
-				MB_WRITE_COMMITTED);
+		      serdes,
-	}
+		      MB_WRITE_COMMITTED);
+
+	if (!is_dp)
+		intel_cx0_rmw(encoder, INTEL_CX0_BOTH_LANES, PHY_C20_VDR_HDMI_RATE,
+			      PHY_C20_HDMI_RATE_MASK,
+			      intel_c20_get_hdmi_rate(port_clock),
+			      MB_WRITE_COMMITTED);
 
 	/*
 	 * 7. Write Vendor specific registers to toggle context setting to load
 	 * the updated programming toggle context bit
 	 */
 	intel_cx0_rmw(encoder, owned_lane_mask, PHY_C20_VDR_CUSTOM_SERDES_RATE,
-		      BIT(0), cntx ? 0 : 1, MB_WRITE_COMMITTED);
+		      PHY_C20_CONTEXT_TOGGLE, cntx ? 0 : PHY_C20_CONTEXT_TOGGLE,
+		      MB_WRITE_COMMITTED);
 }
 
 static int intel_c10pll_calc_port_clock(struct intel_encoder *encoder,
@@ -2768,7 +2759,7 @@ static void intel_program_port_clock_ctl(struct intel_encoder *encoder,
 
 	val |= XELPDP_FORWARD_CLOCK_UNGATE;
 
-	if (!is_dp && is_hdmi_frl(port_clock))
+	if (!is_dp && intel_hdmi_is_frl(port_clock))
 		val |= XELPDP_DDI_CLOCK_SELECT_PREP(display, XELPDP_DDI_CLOCK_SELECT_DIV18CLK);
 	else
 		val |= XELPDP_DDI_CLOCK_SELECT_PREP(display, XELPDP_DDI_CLOCK_SELECT_MAXPCLK);
@@ -2808,8 +2799,8 @@ static u32 intel_cx0_get_powerdown_state(u8 lane_mask, u8 state)
 	return val;
 }
 
-static void intel_cx0_powerdown_change_sequence(struct intel_encoder *encoder,
+void intel_cx0_powerdown_change_sequence(struct intel_encoder *encoder,
-						u8 lane_mask, u8 state)
+					 u8 lane_mask, u8 state)
 {
 	struct intel_display *display = to_intel_display(encoder);
 	enum port port = encoder->port;
@@ -2839,24 +2830,24 @@ static void intel_cx0_powerdown_change_sequence(struct intel_encoder *encoder,
 	/* Update Timeout Value */
 	if (intel_de_wait_custom(display, buf_ctl2_reg,
 				 intel_cx0_get_powerdown_update(lane_mask), 0,
-				 XELPDP_PORT_POWERDOWN_UPDATE_TIMEOUT_US, 0, NULL))
+				 XELPDP_PORT_POWERDOWN_UPDATE_TIMEOUT_US, 2, NULL))
 		drm_warn(display->drm,
 			 "PHY %c failed to bring out of Lane reset after %dus.\n",
 			 phy_name(phy), XELPDP_PORT_RESET_START_TIMEOUT_US);
 }
 
-static void intel_cx0_setup_powerdown(struct intel_encoder *encoder)
+void intel_cx0_setup_powerdown(struct intel_encoder *encoder)
 {
 	struct intel_display *display = to_intel_display(encoder);
 	enum port port = encoder->port;
 
 	intel_de_rmw(display, XELPDP_PORT_BUF_CTL2(display, port),
 		     XELPDP_POWER_STATE_READY_MASK,
-		     XELPDP_POWER_STATE_READY(CX0_P2_STATE_READY));
+		     XELPDP_POWER_STATE_READY(XELPDP_P2_STATE_READY));
 	intel_de_rmw(display, XELPDP_PORT_BUF_CTL3(display, port),
 		     XELPDP_POWER_STATE_ACTIVE_MASK |
 		     XELPDP_PLL_LANE_STAGGERING_DELAY_MASK,
-		     XELPDP_POWER_STATE_ACTIVE(CX0_P0_STATE_ACTIVE) |
+		     XELPDP_POWER_STATE_ACTIVE(XELPDP_P0_STATE_ACTIVE) |
 		     XELPDP_PLL_LANE_STAGGERING_DELAY(0));
 }
 
@@ -2929,7 +2920,7 @@ static void intel_cx0_phy_lane_reset(struct intel_encoder *encoder,
 			 phy_name(phy), XELPDP_REFCLK_ENABLE_TIMEOUT_US);
 
 	intel_cx0_powerdown_change_sequence(encoder, INTEL_CX0_BOTH_LANES,
-					    CX0_P2_STATE_RESET);
+					    XELPDP_P2_STATE_RESET);
 	intel_cx0_setup_powerdown(encoder);
 
 	intel_de_rmw(display, XELPDP_PORT_BUF_CTL2(display, port), lane_pipe_reset, 0);
@@ -3034,7 +3025,7 @@ static void __intel_cx0pll_enable(struct intel_encoder *encoder,
 	 * TODO: For DP alt mode use only one lane.
 	 */
 	intel_cx0_powerdown_change_sequence(encoder, INTEL_CX0_BOTH_LANES,
-					    CX0_P2_STATE_READY);
+					    XELPDP_P2_STATE_READY);
 
 	/*
 	 * 4. Program PORT_MSGBUS_TIMER register's Message Bus Timer field to 0xA000.
@@ -3160,8 +3151,8 @@ static int intel_mtl_tbt_clock_select(struct intel_display *display,
 	}
 }
 
-static void intel_mtl_tbt_pll_enable(struct intel_encoder *encoder,
+void intel_mtl_tbt_pll_enable(struct intel_encoder *encoder,
-				     const struct intel_crtc_state *crtc_state)
+			      const struct intel_crtc_state *crtc_state)
 {
 	struct intel_display *display = to_intel_display(encoder);
 	enum phy phy = intel_encoder_to_phy(encoder);
@@ -3275,13 +3266,13 @@ static u8 cx0_power_control_disable_val(struct intel_encoder *encoder)
 	struct intel_display *display = to_intel_display(encoder);
 
 	if (intel_encoder_is_c10phy(encoder))
-		return CX0_P2PG_STATE_DISABLE;
+		return XELPDP_P2PG_STATE_DISABLE;
 
 	if ((display->platform.battlemage && encoder->port == PORT_A) ||
 	    (DISPLAY_VER(display) >= 30 && encoder->type == INTEL_OUTPUT_EDP))
-		return CX0_P2PG_STATE_DISABLE;
+		return XELPDP_P2PG_STATE_DISABLE;
 
-	return CX0_P4PG_STATE_DISABLE;
+	return XELPDP_P4PG_STATE_DISABLE;
 }
 
 static void intel_cx0pll_disable(struct intel_encoder *encoder)
@@ -3345,7 +3336,7 @@ static bool intel_cx0_pll_is_enabled(struct intel_encoder *encoder)
 			     intel_cx0_get_pclk_pll_request(lane);
 }
 
-static void intel_mtl_tbt_pll_disable(struct intel_encoder *encoder)
+void intel_mtl_tbt_pll_disable(struct intel_encoder *encoder)
 {
 	struct intel_display *display = to_intel_display(encoder);
 	enum phy phy = intel_encoder_to_phy(encoder);
@@ -3584,7 +3575,7 @@ void intel_cx0pll_state_verify(struct intel_atomic_state *state,
 	struct intel_encoder *encoder;
 	struct intel_cx0pll_state mpll_hw_state = {};
 
-	if (DISPLAY_VER(display) < 14)
+	if (!IS_DISPLAY_VER(display, 14, 30))
 		return;
 
 	if (!new_crtc_state->hw.active)

drivers/gpu/drm/i915/display/intel_cx0_phy.h

@@ -8,6 +8,9 @@
 
 #include <linux/types.h>
 
+#define MB_WRITE_COMMITTED      true
+#define MB_WRITE_UNCOMMITTED    false
+
 enum icl_port_dpll_id;
 struct intel_atomic_state;
 struct intel_c10pll_state;
@@ -19,6 +22,8 @@ struct intel_display;
 struct intel_encoder;
 struct intel_hdmi;
 
+void intel_clear_response_ready_flag(struct intel_encoder *encoder,
+				     int lane);
 bool intel_encoder_is_c10phy(struct intel_encoder *encoder);
 void intel_mtl_pll_enable(struct intel_encoder *encoder,
 			  const struct intel_crtc_state *crtc_state);
@@ -41,9 +46,25 @@ bool intel_cx0pll_compare_hw_state(const struct intel_cx0pll_state *a,
 				   const struct intel_cx0pll_state *b);
 void intel_cx0_phy_set_signal_levels(struct intel_encoder *encoder,
 				     const struct intel_crtc_state *crtc_state);
+void intel_cx0_powerdown_change_sequence(struct intel_encoder *encoder,
+					 u8 lane_mask, u8 state);
+int intel_cx0_phy_check_hdmi_link_rate(struct intel_hdmi *hdmi, int clock);
+void intel_cx0_setup_powerdown(struct intel_encoder *encoder);
+bool intel_cx0_is_hdmi_frl(u32 clock);
+u8 intel_cx0_read(struct intel_encoder *encoder, u8 lane_mask, u16 addr);
+void intel_cx0_rmw(struct intel_encoder *encoder,
+		   u8 lane_mask, u16 addr, u8 clear, u8 set, bool committed);
+void intel_cx0_write(struct intel_encoder *encoder,
+		     u8 lane_mask, u16 addr, u8 data, bool committed);
+int intel_cx0_wait_for_ack(struct intel_encoder *encoder,
+			   int command, int lane, u32 *val);
+void intel_cx0_bus_reset(struct intel_encoder *encoder, int lane);
 int intel_mtl_tbt_calc_port_clock(struct intel_encoder *encoder);
 void intel_cx0_pll_power_save_wa(struct intel_display *display);
 void intel_lnl_mac_transmit_lfps(struct intel_encoder *encoder,
 				 const struct intel_crtc_state *crtc_state);
+void intel_mtl_tbt_pll_enable(struct intel_encoder *encoder,
+			      const struct intel_crtc_state *crtc_state);
+void intel_mtl_tbt_pll_disable(struct intel_encoder *encoder);
 
 #endif /* __INTEL_CX0_PHY_H__ */

drivers/gpu/drm/i915/display/intel_cx0_phy_regs.h

@@ -50,6 +50,7 @@
 #define   XELPDP_PORT_M2P_COMMAND_WRITE_UNCOMMITTED	REG_FIELD_PREP(XELPDP_PORT_M2P_COMMAND_TYPE_MASK, 0x1)
 #define   XELPDP_PORT_M2P_COMMAND_WRITE_COMMITTED	REG_FIELD_PREP(XELPDP_PORT_M2P_COMMAND_TYPE_MASK, 0x2)
 #define   XELPDP_PORT_M2P_COMMAND_READ			REG_FIELD_PREP(XELPDP_PORT_M2P_COMMAND_TYPE_MASK, 0x3)
+#define   XELPDP_PORT_P2P_TRANSACTION_PENDING		REG_BIT(24)
 #define   XELPDP_PORT_M2P_DATA_MASK			REG_GENMASK(23, 16)
 #define   XELPDP_PORT_M2P_DATA(val)			REG_FIELD_PREP(XELPDP_PORT_M2P_DATA_MASK, val)
 #define   XELPDP_PORT_M2P_TRANSACTION_RESET		REG_BIT(15)
@@ -104,6 +105,8 @@
 #define   XELPDP_PORT_BUF_PORT_DATA_20BIT		REG_FIELD_PREP(XELPDP_PORT_BUF_PORT_DATA_WIDTH_MASK, 1)
 #define   XELPDP_PORT_BUF_PORT_DATA_40BIT		REG_FIELD_PREP(XELPDP_PORT_BUF_PORT_DATA_WIDTH_MASK, 2)
 #define   XELPDP_PORT_REVERSAL				REG_BIT(16)
+#define   XE3PLPDP_PHY_MODE_MASK			REG_GENMASK(15, 12)
+#define   XE3PLPDP_PHY_MODE_DP				REG_FIELD_PREP(XE3PLPDP_PHY_MODE_MASK, 0x3)
 #define   XELPDP_PORT_BUF_IO_SELECT_TBT			REG_BIT(11)
 #define   XELPDP_PORT_BUF_PHY_IDLE			REG_BIT(7)
 #define   XELPDP_TC_PHY_OWNERSHIP			REG_BIT(6)
@@ -124,6 +127,7 @@
 	 _XELPDP_PORT_BUF_CTL2(port))
 #define   XELPDP_LANE_PIPE_RESET(lane)			_PICK(lane, REG_BIT(31), REG_BIT(30))
 #define   XELPDP_LANE_PHY_CURRENT_STATUS(lane)		_PICK(lane, REG_BIT(29), REG_BIT(28))
+#define   XE3PLPDP_LANE_PHY_PULSE_STATUS(lane)		_PICK(lane, REG_BIT(27), REG_BIT(26))
 #define   XELPDP_LANE_POWERDOWN_UPDATE(lane)		_PICK(lane, REG_BIT(25), REG_BIT(24))
 #define   _XELPDP_LANE0_POWERDOWN_NEW_STATE_MASK	REG_GENMASK(23, 20)
 #define   _XELPDP_LANE0_POWERDOWN_NEW_STATE(val)	REG_FIELD_PREP(_XELPDP_LANE0_POWERDOWN_NEW_STATE_MASK, val)
@@ -149,11 +153,12 @@
 #define   XELPDP_PLL_LANE_STAGGERING_DELAY(val)		REG_FIELD_PREP(XELPDP_PLL_LANE_STAGGERING_DELAY_MASK, val)
 #define   XELPDP_POWER_STATE_ACTIVE_MASK		REG_GENMASK(3, 0)
 #define   XELPDP_POWER_STATE_ACTIVE(val)		REG_FIELD_PREP(XELPDP_POWER_STATE_ACTIVE_MASK, val)
-#define   CX0_P0_STATE_ACTIVE				0x0
+#define   XELPDP_P0_STATE_ACTIVE			0x0
-#define   CX0_P2_STATE_READY				0x2
+#define   XELPDP_P2_STATE_READY				0x2
-#define   CX0_P2PG_STATE_DISABLE			0x9
+#define   XE3PLPD_P4_STATE_DISABLE			0x4
-#define   CX0_P4PG_STATE_DISABLE			0xC
+#define   XELPDP_P2PG_STATE_DISABLE			0x9
-#define   CX0_P2_STATE_RESET				0x2
+#define   XELPDP_P4PG_STATE_DISABLE			0xC
+#define   XELPDP_P2_STATE_RESET				0x2
 
 #define _XELPDP_PORT_MSGBUS_TIMER_LN0_A			0x640d8
 #define _XELPDP_PORT_MSGBUS_TIMER_LN0_B			0x641d8
@@ -298,10 +303,14 @@
 #define PHY_C20_RD_DATA_L		0xC08
 #define PHY_C20_RD_DATA_H		0xC09
 #define PHY_C20_VDR_CUSTOM_SERDES_RATE	0xD00
-#define PHY_C20_VDR_HDMI_RATE		0xD01
+#define   PHY_C20_IS_HDMI_FRL		REG_BIT8(7)
+#define   PHY_C20_IS_DP			REG_BIT8(6)
+#define   PHY_C20_DP_RATE_MASK		REG_GENMASK8(4, 1)
+#define   PHY_C20_DP_RATE(val)		REG_FIELD_PREP8(PHY_C20_DP_RATE_MASK, val)
 #define   PHY_C20_CONTEXT_TOGGLE	REG_BIT8(0)
-#define   PHY_C20_CUSTOM_SERDES_MASK	REG_GENMASK8(4, 1)
+#define PHY_C20_VDR_HDMI_RATE		0xD01
-#define   PHY_C20_CUSTOM_SERDES(val)	REG_FIELD_PREP8(PHY_C20_CUSTOM_SERDES_MASK, val)
+#define   PHY_C20_HDMI_RATE_MASK	REG_GENMASK8(1, 0)
+#define   PHY_C20_HDMI_RATE(val)	REG_FIELD_PREP8(PHY_C20_HDMI_RATE_MASK, val)
 #define PHY_C20_VDR_CUSTOM_WIDTH	0xD02
 #define   PHY_C20_CUSTOM_WIDTH_MASK	REG_GENMASK(1, 0)
 #define   PHY_C20_CUSTOM_WIDTH(val)	REG_FIELD_PREP8(PHY_C20_CUSTOM_WIDTH_MASK, val)

drivers/gpu/drm/i915/display/intel_dbuf_bw.c

@@ -0,0 +1,295 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2025 Intel Corporation
+ */
+
+#include <drm/drm_print.h>
+
+#include "intel_dbuf_bw.h"
+#include "intel_display_core.h"
+#include "intel_display_types.h"
+#include "skl_watermark.h"
+
+struct intel_dbuf_bw {
+	unsigned int max_bw[I915_MAX_DBUF_SLICES];
+	u8 active_planes[I915_MAX_DBUF_SLICES];
+};
+
+struct intel_dbuf_bw_state {
+	struct intel_global_state base;
+	struct intel_dbuf_bw dbuf_bw[I915_MAX_PIPES];
+};
+
+struct intel_dbuf_bw_state *to_intel_dbuf_bw_state(struct intel_global_state *obj_state)
+{
+	return container_of(obj_state, struct intel_dbuf_bw_state, base);
+}
+
+struct intel_dbuf_bw_state *
+intel_atomic_get_old_dbuf_bw_state(struct intel_atomic_state *state)
+{
+	struct intel_display *display = to_intel_display(state);
+	struct intel_global_state *dbuf_bw_state;
+
+	dbuf_bw_state = intel_atomic_get_old_global_obj_state(state, &display->dbuf_bw.obj);
+
+	return to_intel_dbuf_bw_state(dbuf_bw_state);
+}
+
+struct intel_dbuf_bw_state *
+intel_atomic_get_new_dbuf_bw_state(struct intel_atomic_state *state)
+{
+	struct intel_display *display = to_intel_display(state);
+	struct intel_global_state *dbuf_bw_state;
+
+	dbuf_bw_state = intel_atomic_get_new_global_obj_state(state, &display->dbuf_bw.obj);
+
+	return to_intel_dbuf_bw_state(dbuf_bw_state);
+}
+
+struct intel_dbuf_bw_state *
+intel_atomic_get_dbuf_bw_state(struct intel_atomic_state *state)
+{
+	struct intel_display *display = to_intel_display(state);
+	struct intel_global_state *dbuf_bw_state;
+
+	dbuf_bw_state = intel_atomic_get_global_obj_state(state, &display->dbuf_bw.obj);
+	if (IS_ERR(dbuf_bw_state))
+		return ERR_CAST(dbuf_bw_state);
+
+	return to_intel_dbuf_bw_state(dbuf_bw_state);
+}
+
+static bool intel_dbuf_bw_changed(struct intel_display *display,
+				  const struct intel_dbuf_bw *old_dbuf_bw,
+				  const struct intel_dbuf_bw *new_dbuf_bw)
+{
+	enum dbuf_slice slice;
+
+	for_each_dbuf_slice(display, slice) {
+		if (old_dbuf_bw->max_bw[slice] != new_dbuf_bw->max_bw[slice] ||
+		    old_dbuf_bw->active_planes[slice] != new_dbuf_bw->active_planes[slice])
+			return true;
+	}
+
+	return false;
+}
+
+static bool intel_dbuf_bw_state_changed(struct intel_display *display,
+					const struct intel_dbuf_bw_state *old_dbuf_bw_state,
+					const struct intel_dbuf_bw_state *new_dbuf_bw_state)
+{
+	enum pipe pipe;
+
+	for_each_pipe(display, pipe) {
+		const struct intel_dbuf_bw *old_dbuf_bw =
+			&old_dbuf_bw_state->dbuf_bw[pipe];
+		const struct intel_dbuf_bw *new_dbuf_bw =
+			&new_dbuf_bw_state->dbuf_bw[pipe];
+
+		if (intel_dbuf_bw_changed(display, old_dbuf_bw, new_dbuf_bw))
+			return true;
+	}
+
+	return false;
+}
+
+static void skl_plane_calc_dbuf_bw(struct intel_dbuf_bw *dbuf_bw,
+				   struct intel_crtc *crtc,
+				   enum plane_id plane_id,
+				   const struct skl_ddb_entry *ddb,
+				   unsigned int data_rate)
+{
+	struct intel_display *display = to_intel_display(crtc);
+	unsigned int dbuf_mask = skl_ddb_dbuf_slice_mask(display, ddb);
+	enum dbuf_slice slice;
+
+	/*
+	 * The arbiter can only really guarantee an
+	 * equal share of the total bw to each plane.
+	 */
+	for_each_dbuf_slice_in_mask(display, slice, dbuf_mask) {
+		dbuf_bw->max_bw[slice] = max(dbuf_bw->max_bw[slice], data_rate);
+		dbuf_bw->active_planes[slice] |= BIT(plane_id);
+	}
+}
+
+static void skl_crtc_calc_dbuf_bw(struct intel_dbuf_bw *dbuf_bw,
+				  const struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+	enum plane_id plane_id;
+
+	memset(dbuf_bw, 0, sizeof(*dbuf_bw));
+
+	if (!crtc_state->hw.active)
+		return;
+
+	for_each_plane_id_on_crtc(crtc, plane_id) {
+		/*
+		 * We assume cursors are small enough
+		 * to not cause bandwidth problems.
+		 */
+		if (plane_id == PLANE_CURSOR)
+			continue;
+
+		skl_plane_calc_dbuf_bw(dbuf_bw, crtc, plane_id,
+				       &crtc_state->wm.skl.plane_ddb[plane_id],
+				       crtc_state->data_rate[plane_id]);
+
+		if (DISPLAY_VER(display) < 11)
+			skl_plane_calc_dbuf_bw(dbuf_bw, crtc, plane_id,
+					       &crtc_state->wm.skl.plane_ddb_y[plane_id],
+					       crtc_state->data_rate[plane_id]);
+	}
+}
+
+/* "Maximum Data Buffer Bandwidth" */
+int intel_dbuf_bw_min_cdclk(struct intel_display *display,
+			    const struct intel_dbuf_bw_state *dbuf_bw_state)
+{
+	unsigned int total_max_bw = 0;
+	enum dbuf_slice slice;
+
+	for_each_dbuf_slice(display, slice) {
+		int num_active_planes = 0;
+		unsigned int max_bw = 0;
+		enum pipe pipe;
+
+		/*
+		 * The arbiter can only really guarantee an
+		 * equal share of the total bw to each plane.
+		 */
+		for_each_pipe(display, pipe) {
+			const struct intel_dbuf_bw *dbuf_bw = &dbuf_bw_state->dbuf_bw[pipe];
+
+			max_bw = max(dbuf_bw->max_bw[slice], max_bw);
+			num_active_planes += hweight8(dbuf_bw->active_planes[slice]);
+		}
+		max_bw *= num_active_planes;
+
+		total_max_bw = max(total_max_bw, max_bw);
+	}
+
+	return DIV_ROUND_UP(total_max_bw, 64);
+}
+
+int intel_dbuf_bw_calc_min_cdclk(struct intel_atomic_state *state,
+				 bool *need_cdclk_calc)
+{
+	struct intel_display *display = to_intel_display(state);
+	struct intel_dbuf_bw_state *new_dbuf_bw_state = NULL;
+	const struct intel_dbuf_bw_state *old_dbuf_bw_state = NULL;
+	const struct intel_crtc_state *old_crtc_state;
+	const struct intel_crtc_state *new_crtc_state;
+	struct intel_crtc *crtc;
+	int ret, i;
+
+	if (DISPLAY_VER(display) < 9)
+		return 0;
+
+	for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state,
+					    new_crtc_state, i) {
+		struct intel_dbuf_bw old_dbuf_bw, new_dbuf_bw;
+
+		skl_crtc_calc_dbuf_bw(&old_dbuf_bw, old_crtc_state);
+		skl_crtc_calc_dbuf_bw(&new_dbuf_bw, new_crtc_state);
+
+		if (!intel_dbuf_bw_changed(display, &old_dbuf_bw, &new_dbuf_bw))
+			continue;
+
+		new_dbuf_bw_state = intel_atomic_get_dbuf_bw_state(state);
+		if (IS_ERR(new_dbuf_bw_state))
+			return PTR_ERR(new_dbuf_bw_state);
+
+		old_dbuf_bw_state = intel_atomic_get_old_dbuf_bw_state(state);
+
+		new_dbuf_bw_state->dbuf_bw[crtc->pipe] = new_dbuf_bw;
+	}
+
+	if (!old_dbuf_bw_state)
+		return 0;
+
+	if (intel_dbuf_bw_state_changed(display, old_dbuf_bw_state, new_dbuf_bw_state)) {
+		ret = intel_atomic_lock_global_state(&new_dbuf_bw_state->base);
+		if (ret)
+			return ret;
+	}
+
+	ret = intel_cdclk_update_dbuf_bw_min_cdclk(state,
+						   intel_dbuf_bw_min_cdclk(display, old_dbuf_bw_state),
+						   intel_dbuf_bw_min_cdclk(display, new_dbuf_bw_state),
+						   need_cdclk_calc);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+void intel_dbuf_bw_update_hw_state(struct intel_display *display)
+{
+	struct intel_dbuf_bw_state *dbuf_bw_state =
+		to_intel_dbuf_bw_state(display->dbuf_bw.obj.state);
+	struct intel_crtc *crtc;
+
+	if (DISPLAY_VER(display) < 9)
+		return;
+
+	for_each_intel_crtc(display->drm, crtc) {
+		const struct intel_crtc_state *crtc_state =
+			to_intel_crtc_state(crtc->base.state);
+
+		skl_crtc_calc_dbuf_bw(&dbuf_bw_state->dbuf_bw[crtc->pipe], crtc_state);
+	}
+}
+
+void intel_dbuf_bw_crtc_disable_noatomic(struct intel_crtc *crtc)
+{
+	struct intel_display *display = to_intel_display(crtc);
+	struct intel_dbuf_bw_state *dbuf_bw_state =
+		to_intel_dbuf_bw_state(display->dbuf_bw.obj.state);
+	enum pipe pipe = crtc->pipe;
+
+	if (DISPLAY_VER(display) < 9)
+		return;
+
+	memset(&dbuf_bw_state->dbuf_bw[pipe], 0, sizeof(dbuf_bw_state->dbuf_bw[pipe]));
+}
+
+static struct intel_global_state *
+intel_dbuf_bw_duplicate_state(struct intel_global_obj *obj)
+{
+	struct intel_dbuf_bw_state *state;
+
+	state = kmemdup(obj->state, sizeof(*state), GFP_KERNEL);
+	if (!state)
+		return NULL;
+
+	return &state->base;
+}
+
+static void intel_dbuf_bw_destroy_state(struct intel_global_obj *obj,
+					struct intel_global_state *state)
+{
+	kfree(state);
+}
+
+static const struct intel_global_state_funcs intel_dbuf_bw_funcs = {
+	.atomic_duplicate_state = intel_dbuf_bw_duplicate_state,
+	.atomic_destroy_state = intel_dbuf_bw_destroy_state,
+};
+
+int intel_dbuf_bw_init(struct intel_display *display)
+{
+	struct intel_dbuf_bw_state *state;
+
+	state = kzalloc(sizeof(*state), GFP_KERNEL);
+	if (!state)
+		return -ENOMEM;
+
+	intel_atomic_global_obj_init(display, &display->dbuf_bw.obj,
+				     &state->base, &intel_dbuf_bw_funcs);
+
+	return 0;
+}

drivers/gpu/drm/i915/display/intel_dbuf_bw.h

@@ -0,0 +1,37 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2025 Intel Corporation
+ */
+
+#ifndef __INTEL_DBUF_BW_H__
+#define __INTEL_DBUF_BW_H__
+
+#include <drm/drm_atomic.h>
+
+struct intel_atomic_state;
+struct intel_dbuf_bw_state;
+struct intel_crtc;
+struct intel_display;
+struct intel_global_state;
+
+struct intel_dbuf_bw_state *
+to_intel_dbuf_bw_state(struct intel_global_state *obj_state);
+
+struct intel_dbuf_bw_state *
+intel_atomic_get_old_dbuf_bw_state(struct intel_atomic_state *state);
+
+struct intel_dbuf_bw_state *
+intel_atomic_get_new_dbuf_bw_state(struct intel_atomic_state *state);
+
+struct intel_dbuf_bw_state *
+intel_atomic_get_dbuf_bw_state(struct intel_atomic_state *state);
+
+int intel_dbuf_bw_init(struct intel_display *display);
+int intel_dbuf_bw_calc_min_cdclk(struct intel_atomic_state *state,
+				 bool *need_cdclk_calc);
+int intel_dbuf_bw_min_cdclk(struct intel_display *display,
+			    const struct intel_dbuf_bw_state *dbuf_bw_state);
+void intel_dbuf_bw_update_hw_state(struct intel_display *display);
+void intel_dbuf_bw_crtc_disable_noatomic(struct intel_crtc *crtc);
+
+#endif /* __INTEL_DBUF_BW_H__ */

drivers/gpu/drm/i915/display/intel_ddi.c

@@ -35,7 +35,6 @@
 #include <drm/drm_privacy_screen_consumer.h>
 
 #include "i915_reg.h"
-#include "i915_utils.h"
 #include "icl_dsi.h"
 #include "intel_alpm.h"
 #include "intel_audio.h"
@@ -53,6 +52,7 @@
 #include "intel_display_power.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dkl_phy.h"
 #include "intel_dkl_phy_regs.h"
 #include "intel_dp.h"
@@ -72,6 +72,7 @@
 #include "intel_hotplug.h"
 #include "intel_hti.h"
 #include "intel_lspcon.h"
+#include "intel_lt_phy.h"
 #include "intel_mg_phy_regs.h"
 #include "intel_modeset_lock.h"
 #include "intel_panel.h"
@@ -1466,10 +1467,15 @@ static int translate_signal_level(struct intel_dp *intel_dp,
 				  u8 signal_levels)
 {
 	struct intel_display *display = to_intel_display(intel_dp);
+	const u8 *signal_array;
+	size_t array_size;
 	int i;
 
-	for (i = 0; i < ARRAY_SIZE(index_to_dp_signal_levels); i++) {
+	signal_array = index_to_dp_signal_levels;
-		if (index_to_dp_signal_levels[i] == signal_levels)
+	array_size = ARRAY_SIZE(index_to_dp_signal_levels);
+
+	for (i = 0; i < array_size; i++) {
+		if (signal_array[i] == signal_levels)
 			return i;
 	}
 
@@ -4240,6 +4246,19 @@ void intel_ddi_get_clock(struct intel_encoder *encoder,
 						     &crtc_state->dpll_hw_state);
 }
 
+static void xe3plpd_ddi_get_config(struct intel_encoder *encoder,
+				   struct intel_crtc_state *crtc_state)
+{
+	intel_lt_phy_pll_readout_hw_state(encoder, crtc_state, &crtc_state->dpll_hw_state.ltpll);
+
+	if (crtc_state->dpll_hw_state.ltpll.tbt_mode)
+		crtc_state->port_clock = intel_mtl_tbt_calc_port_clock(encoder);
+	else
+		crtc_state->port_clock =
+			intel_lt_phy_calc_port_clock(encoder, crtc_state);
+	intel_ddi_get_config(encoder, crtc_state);
+}
+
 static void mtl_ddi_get_config(struct intel_encoder *encoder,
 			       struct intel_crtc_state *crtc_state)
 {
@@ -4559,6 +4578,13 @@ static int intel_ddi_compute_config_late(struct intel_encoder *encoder,
 	struct intel_display *display = to_intel_display(encoder);
 	struct drm_connector *connector = conn_state->connector;
 	u8 port_sync_transcoders = 0;
+	int ret = 0;
+
+	if (intel_crtc_has_dp_encoder(crtc_state))
+		ret = intel_dp_compute_config_late(encoder, crtc_state, conn_state);
+
+	if (ret)
+		return ret;
 
 	drm_dbg_kms(display->drm, "[ENCODER:%d:%s] [CRTC:%d:%s]\n",
 		    encoder->base.base.id, encoder->base.name,
@@ -5224,7 +5250,12 @@ void intel_ddi_init(struct intel_display *display,
 	encoder->cloneable = 0;
 	encoder->pipe_mask = ~0;
 
-	if (DISPLAY_VER(display) >= 14) {
+	if (HAS_LT_PHY(display)) {
+		encoder->enable_clock = intel_xe3plpd_pll_enable;
+		encoder->disable_clock = intel_xe3plpd_pll_disable;
+		encoder->port_pll_type = intel_mtl_port_pll_type;
+		encoder->get_config = xe3plpd_ddi_get_config;
+	} else if (DISPLAY_VER(display) >= 14) {
 		encoder->enable_clock = intel_mtl_pll_enable;
 		encoder->disable_clock = intel_mtl_pll_disable;
 		encoder->port_pll_type = intel_mtl_port_pll_type;
@@ -5289,7 +5320,9 @@ void intel_ddi_init(struct intel_display *display,
 		encoder->get_config = hsw_ddi_get_config;
 	}
 
-	if (DISPLAY_VER(display) >= 14) {
+	if (HAS_LT_PHY(display)) {
+		encoder->set_signal_levels = intel_lt_phy_set_signal_levels;
+	} else if (DISPLAY_VER(display) >= 14) {
 		encoder->set_signal_levels = intel_cx0_phy_set_signal_levels;
 	} else if (display->platform.dg2) {
 		encoder->set_signal_levels = intel_snps_phy_set_signal_levels;

drivers/gpu/drm/i915/display/intel_ddi_buf_trans.c

@@ -3,13 +3,14 @@
  * Copyright © 2020 Intel Corporation
  */
 
-#include "i915_utils.h"
 #include "intel_cx0_phy.h"
 #include "intel_ddi.h"
 #include "intel_ddi_buf_trans.h"
 #include "intel_de.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dp.h"
+#include "intel_lt_phy.h"
 
 /* HDMI/DVI modes ignore everything but the last 2 items. So we share
  * them for both DP and FDI transports, allowing those ports to
@@ -1115,6 +1116,69 @@ static const struct intel_ddi_buf_trans mtl_c20_trans_uhbr = {
 	.num_entries = ARRAY_SIZE(_mtl_c20_trans_uhbr),
 };
 
+/* DP1.4 */
+static const union intel_ddi_buf_trans_entry _xe3plpd_lt_trans_dp14[] = {
+	{ .lt = { 1, 0, 0, 21, 0  } },
+	{ .lt = { 1, 1, 0, 24, 3  } },
+	{ .lt = { 1, 2, 0, 28, 7  } },
+	{ .lt = { 0, 3, 0, 35, 13 } },
+	{ .lt = { 1, 1, 0, 27, 0  } },
+	{ .lt = { 1, 2, 0, 31, 4  } },
+	{ .lt = { 0, 3, 0, 39, 9  } },
+	{ .lt = { 1, 2, 0, 35, 0  } },
+	{ .lt = { 0, 3, 0, 41, 7  } },
+	{ .lt = { 0, 3, 0, 48, 0  } },
+};
+
+/* DP2.1 */
+static const union intel_ddi_buf_trans_entry _xe3plpd_lt_trans_uhbr[] = {
+	{ .lt = { 0, 0, 0, 48, 0  } },
+	{ .lt = { 0, 0, 0, 43, 5  } },
+	{ .lt = { 0, 0, 0, 40, 8  } },
+	{ .lt = { 0, 0, 0, 37, 11 } },
+	{ .lt = { 0, 0, 0, 33, 15 } },
+	{ .lt = { 0, 0, 2, 46, 0  } },
+	{ .lt = { 0, 0, 2, 42, 4  } },
+	{ .lt = { 0, 0, 2, 38, 8  } },
+	{ .lt = { 0, 0, 2, 35, 11 } },
+	{ .lt = { 0, 0, 2, 33, 13 } },
+	{ .lt = { 0, 0, 4, 44, 0  } },
+	{ .lt = { 0, 0, 4, 40, 4  } },
+	{ .lt = { 0, 0, 4, 37, 7  } },
+	{ .lt = { 0, 0, 4, 33, 11 } },
+	{ .lt = { 0, 0, 8, 40, 0  } },
+	{ .lt = { 1, 0, 2, 26, 2  } },
+};
+
+/* eDp */
+static const union intel_ddi_buf_trans_entry _xe3plpd_lt_trans_edp[] = {
+	{ .lt = { 1, 0, 0, 12, 0 } },
+	{ .lt = { 1, 1, 0, 13, 1 } },
+	{ .lt = { 1, 2, 0, 15, 3 } },
+	{ .lt = { 1, 3, 0, 19, 7 } },
+	{ .lt = { 1, 1, 0, 14, 0 } },
+	{ .lt = { 1, 2, 0, 16, 2 } },
+	{ .lt = { 1, 3, 0, 21, 5 } },
+	{ .lt = { 1, 2, 0, 18, 0 } },
+	{ .lt = { 1, 3, 0, 22, 4 } },
+	{ .lt = { 1, 3, 0, 26, 0 } },
+};
+
+static const struct intel_ddi_buf_trans xe3plpd_lt_trans_dp14 = {
+	.entries = _xe3plpd_lt_trans_dp14,
+	.num_entries = ARRAY_SIZE(_xe3plpd_lt_trans_dp14),
+};
+
+static const struct intel_ddi_buf_trans xe3plpd_lt_trans_uhbr = {
+	.entries = _xe3plpd_lt_trans_uhbr,
+	.num_entries = ARRAY_SIZE(_xe3plpd_lt_trans_uhbr),
+};
+
+static const struct intel_ddi_buf_trans xe3plpd_lt_trans_edp = {
+	.entries = _xe3plpd_lt_trans_edp,
+	.num_entries = ARRAY_SIZE(_xe3plpd_lt_trans_edp),
+};
+
 bool is_hobl_buf_trans(const struct intel_ddi_buf_trans *table)
 {
 	return table == &tgl_combo_phy_trans_edp_hbr2_hobl;
@@ -1707,11 +1771,26 @@ mtl_get_c20_buf_trans(struct intel_encoder *encoder,
 		return intel_get_buf_trans(&mtl_c20_trans_dp14, n_entries);
 }
 
+static const struct intel_ddi_buf_trans *
+xe3plpd_get_lt_buf_trans(struct intel_encoder *encoder,
+			 const struct intel_crtc_state *crtc_state,
+			 int *n_entries)
+{
+	if (intel_crtc_has_dp_encoder(crtc_state) && intel_dp_is_uhbr(crtc_state))
+		return intel_get_buf_trans(&xe3plpd_lt_trans_uhbr, n_entries);
+	else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP))
+		return intel_get_buf_trans(&xe3plpd_lt_trans_edp, n_entries);
+	else
+		return intel_get_buf_trans(&xe3plpd_lt_trans_dp14, n_entries);
+}
+
 void intel_ddi_buf_trans_init(struct intel_encoder *encoder)
 {
 	struct intel_display *display = to_intel_display(encoder);
 
-	if (DISPLAY_VER(display) >= 14) {
+	if (HAS_LT_PHY(display)) {
+		encoder->get_buf_trans = xe3plpd_get_lt_buf_trans;
+	} else if (DISPLAY_VER(display) >= 14) {
 		if (intel_encoder_is_c10phy(encoder))
 			encoder->get_buf_trans = mtl_get_c10_buf_trans;
 		else

drivers/gpu/drm/i915/display/intel_ddi_buf_trans.h

@@ -50,6 +50,14 @@ struct dg2_snps_phy_buf_trans {
 	u8 post_cursor;
 };
 
+struct xe3plpd_lt_phy_buf_trans {
+	u8 txswing;
+	u8 txswing_level;
+	u8 pre_cursor;
+	u8 main_cursor;
+	u8 post_cursor;
+};
+
 union intel_ddi_buf_trans_entry {
 	struct hsw_ddi_buf_trans hsw;
 	struct bxt_ddi_buf_trans bxt;
@@ -57,6 +65,7 @@ union intel_ddi_buf_trans_entry {
 	struct icl_mg_phy_ddi_buf_trans mg;
 	struct tgl_dkl_phy_ddi_buf_trans dkl;
 	struct dg2_snps_phy_buf_trans snps;
+	struct xe3plpd_lt_phy_buf_trans lt;
 };
 
 struct intel_ddi_buf_trans {

drivers/gpu/drm/i915/display/intel_display.c

@@ -51,7 +51,6 @@
 #include "i915_config.h"
 #include "i915_drv.h"
 #include "i915_reg.h"
-#include "i915_utils.h"
 #include "i9xx_plane.h"
 #include "i9xx_plane_regs.h"
 #include "i9xx_wm.h"
@@ -60,6 +59,7 @@
 #include "intel_audio.h"
 #include "intel_bo.h"
 #include "intel_bw.h"
+#include "intel_casf.h"
 #include "intel_cdclk.h"
 #include "intel_clock_gating.h"
 #include "intel_color.h"
@@ -76,6 +76,7 @@
 #include "intel_display_regs.h"
 #include "intel_display_rpm.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_display_wa.h"
 #include "intel_dmc.h"
 #include "intel_dp.h"
@@ -99,6 +100,7 @@
 #include "intel_hdmi.h"
 #include "intel_hotplug.h"
 #include "intel_link_bw.h"
+#include "intel_lt_phy.h"
 #include "intel_lvds.h"
 #include "intel_lvds_regs.h"
 #include "intel_modeset_setup.h"
@@ -129,11 +131,9 @@
 #include "skl_scaler.h"
 #include "skl_universal_plane.h"
 #include "skl_watermark.h"
-#include "vlv_dpio_phy_regs.h"
 #include "vlv_dsi.h"
 #include "vlv_dsi_pll.h"
 #include "vlv_dsi_regs.h"
-#include "vlv_sideband.h"
 
 static void intel_set_transcoder_timings(const struct intel_crtc_state *crtc_state);
 static void intel_set_pipe_src_size(const struct intel_crtc_state *crtc_state);
@@ -141,65 +141,6 @@ static void hsw_set_transconf(const struct intel_crtc_state *crtc_state);
 static void bdw_set_pipe_misc(struct intel_dsb *dsb,
 			      const struct intel_crtc_state *crtc_state);
 
-/* returns HPLL frequency in kHz */
-int vlv_get_hpll_vco(struct drm_device *drm)
-{
-	int hpll_freq, vco_freq[] = { 800, 1600, 2000, 2400 };
-
-	/* Obtain SKU information */
-	hpll_freq = vlv_cck_read(drm, CCK_FUSE_REG) &
-		CCK_FUSE_HPLL_FREQ_MASK;
-
-	return vco_freq[hpll_freq] * 1000;
-}
-
-int vlv_get_cck_clock(struct drm_device *drm,
-		      const char *name, u32 reg, int ref_freq)
-{
-	u32 val;
-	int divider;
-
-	val = vlv_cck_read(drm, reg);
-	divider = val & CCK_FREQUENCY_VALUES;
-
-	drm_WARN(drm, (val & CCK_FREQUENCY_STATUS) !=
-		 (divider << CCK_FREQUENCY_STATUS_SHIFT),
-		 "%s change in progress\n", name);
-
-	return DIV_ROUND_CLOSEST(ref_freq << 1, divider + 1);
-}
-
-int vlv_get_cck_clock_hpll(struct drm_device *drm,
-			   const char *name, u32 reg)
-{
-	struct drm_i915_private *dev_priv = to_i915(drm);
-	int hpll;
-
-	vlv_cck_get(drm);
-
-	if (dev_priv->hpll_freq == 0)
-		dev_priv->hpll_freq = vlv_get_hpll_vco(drm);
-
-	hpll = vlv_get_cck_clock(drm, name, reg, dev_priv->hpll_freq);
-
-	vlv_cck_put(drm);
-
-	return hpll;
-}
-
-void intel_update_czclk(struct intel_display *display)
-{
-	struct drm_i915_private *dev_priv = to_i915(display->drm);
-
-	if (!display->platform.valleyview && !display->platform.cherryview)
-		return;
-
-	dev_priv->czclk_freq = vlv_get_cck_clock_hpll(display->drm, "czclk",
-						      CCK_CZ_CLOCK_CONTROL);
-
-	drm_dbg_kms(display->drm, "CZ clock rate: %d kHz\n", dev_priv->czclk_freq);
-}
-
 static bool is_hdr_mode(const struct intel_crtc_state *crtc_state)
 {
 	return (crtc_state->active_planes &
@@ -891,9 +832,8 @@ static void intel_async_flip_vtd_wa(struct intel_display *display,
 static bool needs_async_flip_vtd_wa(const struct intel_crtc_state *crtc_state)
 {
 	struct intel_display *display = to_intel_display(crtc_state);
-	struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);
 
-	return crtc_state->uapi.async_flip && i915_vtd_active(i915) &&
+	return crtc_state->uapi.async_flip && intel_display_vtd_active(display) &&
 		(DISPLAY_VER(display) == 9 || display->platform.broadwell ||
 		 display->platform.haswell);
 }
@@ -1040,6 +980,24 @@ static bool audio_disabling(const struct intel_crtc_state *old_crtc_state,
 		 memcmp(old_crtc_state->eld, new_crtc_state->eld, MAX_ELD_BYTES) != 0);
 }
 
+static bool intel_casf_enabling(const struct intel_crtc_state *new_crtc_state,
+				const struct intel_crtc_state *old_crtc_state)
+{
+	if (!new_crtc_state->hw.active)
+		return false;
+
+	return is_enabling(hw.casf_params.casf_enable, old_crtc_state, new_crtc_state);
+}
+
+static bool intel_casf_disabling(const struct intel_crtc_state *old_crtc_state,
+				 const struct intel_crtc_state *new_crtc_state)
+{
+	if (!new_crtc_state->hw.active)
+		return false;
+
+	return is_disabling(hw.casf_params.casf_enable, old_crtc_state, new_crtc_state);
+}
+
 #undef is_disabling
 #undef is_enabling
 
@@ -1195,6 +1153,9 @@ static void intel_pre_plane_update(struct intel_atomic_state *state,
 	if (audio_disabling(old_crtc_state, new_crtc_state))
 		intel_encoders_audio_disable(state, crtc);
 
+	if (intel_casf_disabling(old_crtc_state, new_crtc_state))
+		intel_casf_disable(new_crtc_state);
+
 	intel_drrs_deactivate(old_crtc_state);
 
 	if (hsw_ips_pre_update(state, crtc))
@@ -1642,8 +1603,7 @@ static void hsw_configure_cpu_transcoder(const struct intel_crtc_state *crtc_sta
 	}
 
 	intel_set_transcoder_timings(crtc_state);
-	if (HAS_VRR(display))
+	intel_vrr_set_transcoder_timings(crtc_state);
-		intel_vrr_set_transcoder_timings(crtc_state);
 
 	if (cpu_transcoder != TRANSCODER_EDP)
 		intel_de_write(display, TRANS_MULT(display, cpu_transcoder),
@@ -2422,39 +2382,44 @@ static int intel_crtc_compute_pipe_mode(struct intel_crtc_state *crtc_state)
 	return 0;
 }
 
-static int intel_crtc_vblank_delay(const struct intel_crtc_state *crtc_state)
+static int intel_crtc_set_context_latency(struct intel_crtc_state *crtc_state)
 {
 	struct intel_display *display = to_intel_display(crtc_state);
-	int vblank_delay = 0;
+	int set_context_latency = 0;
 
 	if (!HAS_DSB(display))
 		return 0;
 
-	vblank_delay = max(vblank_delay, intel_psr_min_vblank_delay(crtc_state));
+	set_context_latency = max(set_context_latency,
+				  intel_psr_min_set_context_latency(crtc_state));
 
-	return vblank_delay;
+	return set_context_latency;
 }
 
-static int intel_crtc_compute_vblank_delay(struct intel_atomic_state *state,
+static int intel_crtc_compute_set_context_latency(struct intel_atomic_state *state,
-					   struct intel_crtc *crtc)
+						  struct intel_crtc *crtc)
 {
 	struct intel_display *display = to_intel_display(state);
 	struct intel_crtc_state *crtc_state =
 		intel_atomic_get_new_crtc_state(state, crtc);
 	struct drm_display_mode *adjusted_mode =
 		&crtc_state->hw.adjusted_mode;
-	int vblank_delay, max_vblank_delay;
+	int set_context_latency, max_vblank_delay;
+
+	set_context_latency = intel_crtc_set_context_latency(crtc_state);
 
-	vblank_delay = intel_crtc_vblank_delay(crtc_state);
 	max_vblank_delay = adjusted_mode->crtc_vblank_end - adjusted_mode->crtc_vblank_start - 1;
 
-	if (vblank_delay > max_vblank_delay) {
+	if (set_context_latency > max_vblank_delay) {
-		drm_dbg_kms(display->drm, "[CRTC:%d:%s] vblank delay (%d) exceeds max (%d)\n",
+		drm_dbg_kms(display->drm, "[CRTC:%d:%s] set context latency (%d) exceeds max (%d)\n",
-			    crtc->base.base.id, crtc->base.name, vblank_delay, max_vblank_delay);
+			    crtc->base.base.id, crtc->base.name,
+			    set_context_latency,
+			    max_vblank_delay);
 		return -EINVAL;
 	}
 
-	adjusted_mode->crtc_vblank_start += vblank_delay;
+	crtc_state->set_context_latency = set_context_latency;
+	adjusted_mode->crtc_vblank_start += set_context_latency;
 
 	return 0;
 }
@@ -2466,11 +2431,11 @@ static int intel_crtc_compute_config(struct intel_atomic_state *state,
 		intel_atomic_get_new_crtc_state(state, crtc);
 	int ret;
 
-	ret = intel_crtc_compute_vblank_delay(state, crtc);
+	ret = intel_dpll_crtc_compute_clock(state, crtc);
 	if (ret)
 		return ret;
 
-	ret = intel_dpll_crtc_compute_clock(state, crtc);
+	ret = intel_crtc_compute_set_context_latency(state, crtc);
 	if (ret)
 		return ret;
 
@@ -2487,6 +2452,8 @@ static int intel_crtc_compute_config(struct intel_atomic_state *state,
 	if (crtc_state->has_pch_encoder)
 		return ilk_fdi_compute_config(crtc, crtc_state);
 
+	intel_vrr_compute_guardband(crtc_state);
+
 	return 0;
 }
 
@@ -2678,13 +2645,16 @@ static void intel_set_transcoder_timings(const struct intel_crtc_state *crtc_sta
 	if (DISPLAY_VER(display) >= 13) {
 		intel_de_write(display,
 			       TRANS_SET_CONTEXT_LATENCY(display, cpu_transcoder),
-			       crtc_vblank_start - crtc_vdisplay);
+			       crtc_state->set_context_latency);
 
 		/*
 		 * VBLANK_START not used by hw, just clear it
 		 * to make it stand out in register dumps.
 		 */
 		crtc_vblank_start = 1;
+	} else if (DISPLAY_VER(display) == 12) {
+		/* VBLANK_START - VACTIVE defines SCL on TGL */
+		crtc_vblank_start = crtc_vdisplay + crtc_state->set_context_latency;
 	}
 
 	if (DISPLAY_VER(display) >= 4)
@@ -2768,13 +2738,16 @@ static void intel_set_transcoder_timings_lrr(const struct intel_crtc_state *crtc
 	if (DISPLAY_VER(display) >= 13) {
 		intel_de_write(display,
 			       TRANS_SET_CONTEXT_LATENCY(display, cpu_transcoder),
-			       crtc_vblank_start - crtc_vdisplay);
+			       crtc_state->set_context_latency);
 
 		/*
 		 * VBLANK_START not used by hw, just clear it
 		 * to make it stand out in register dumps.
 		 */
 		crtc_vblank_start = 1;
+	} else if (DISPLAY_VER(display) == 12) {
+		/* VBLANK_START - VACTIVE defines SCL on TGL */
+		crtc_vblank_start = crtc_vdisplay + crtc_state->set_context_latency;
 	}
 
 	/*
@@ -2881,11 +2854,24 @@ static void intel_get_transcoder_timings(struct intel_crtc *crtc,
 		adjusted_mode->crtc_vblank_end += 1;
 	}
 
-	if (DISPLAY_VER(display) >= 13 && !transcoder_is_dsi(cpu_transcoder))
+	if (DISPLAY_VER(display) >= 13 && !transcoder_is_dsi(cpu_transcoder)) {
-		adjusted_mode->crtc_vblank_start =
+		pipe_config->set_context_latency =
-			adjusted_mode->crtc_vdisplay +
 			intel_de_read(display,
 				      TRANS_SET_CONTEXT_LATENCY(display, cpu_transcoder));
+		adjusted_mode->crtc_vblank_start =
+			adjusted_mode->crtc_vdisplay +
+			pipe_config->set_context_latency;
+	} else if (DISPLAY_VER(display) == 12) {
+		/*
+		 * TGL doesn't have a dedicated register for SCL.
+		 * Instead, the hardware derives SCL from the difference between
+		 * TRANS_VBLANK.vblank_start and TRANS_VTOTAL.vactive.
+		 * To reflect the HW behaviour, readout the value for SCL as
+		 * Vblank start - Vactive.
+		 */
+		pipe_config->set_context_latency =
+			adjusted_mode->crtc_vblank_start - adjusted_mode->crtc_vdisplay;
+	}
 
 	if (DISPLAY_VER(display) >= 30)
 		pipe_config->min_hblank = intel_de_read(display,
@@ -3952,6 +3938,20 @@ static bool hsw_get_pipe_config(struct intel_crtc *crtc,
 	intel_joiner_get_config(pipe_config);
 	intel_dsc_get_config(pipe_config);
 
+	/* intel_vrr_get_config() depends on .framestart_delay */
+	if (!transcoder_is_dsi(pipe_config->cpu_transcoder)) {
+		tmp = intel_de_read(display, CHICKEN_TRANS(display, pipe_config->cpu_transcoder));
+
+		pipe_config->framestart_delay = REG_FIELD_GET(HSW_FRAME_START_DELAY_MASK, tmp) + 1;
+	} else {
+		/* no idea if this is correct */
+		pipe_config->framestart_delay = 1;
+	}
+
+	/*
+	 * intel_vrr_get_config() depends on TRANS_SET_CONTEXT_LATENCY
+	 * readout done by intel_get_transcoder_timings().
+	 */
 	if (!transcoder_is_dsi(pipe_config->cpu_transcoder) ||
 	    DISPLAY_VER(display) >= 11)
 		intel_get_transcoder_timings(crtc, pipe_config);
@@ -4003,15 +4003,6 @@ static bool hsw_get_pipe_config(struct intel_crtc *crtc,
 		pipe_config->pixel_multiplier = 1;
 	}
 
-	if (!transcoder_is_dsi(pipe_config->cpu_transcoder)) {
-		tmp = intel_de_read(display, CHICKEN_TRANS(display, pipe_config->cpu_transcoder));
-
-		pipe_config->framestart_delay = REG_FIELD_GET(HSW_FRAME_START_DELAY_MASK, tmp) + 1;
-	} else {
-		/* no idea if this is correct */
-		pipe_config->framestart_delay = 1;
-	}
-
 out:
 	intel_display_power_put_all_in_set(display, &crtc->hw_readout_power_domains);
 
@@ -4258,9 +4249,14 @@ static int intel_crtc_atomic_check(struct intel_atomic_state *state,
 		return ret;
 	}
 
+	ret = intel_casf_compute_config(crtc_state);
+	if (ret)
+		return ret;
+
 	if (DISPLAY_VER(display) >= 9) {
 		if (intel_crtc_needs_modeset(crtc_state) ||
-		    intel_crtc_needs_fastset(crtc_state)) {
+		    intel_crtc_needs_fastset(crtc_state) ||
+		    intel_casf_needs_scaler(crtc_state)) {
 			ret = skl_update_scaler_crtc(crtc_state);
 			if (ret)
 				return ret;
@@ -4639,7 +4635,7 @@ intel_modeset_pipe_config(struct intel_atomic_state *state,
 	if (ret)
 		return ret;
 
-	crtc_state->fec_enable = limits->force_fec_pipes & BIT(crtc->pipe);
+	crtc_state->dsc.compression_enabled_on_link = limits->link_dsc_pipes & BIT(crtc->pipe);
 	crtc_state->max_link_bpp_x16 = limits->max_bpp_x16[crtc->pipe];
 
 	if (crtc_state->pipe_bpp > fxp_q4_to_int(crtc_state->max_link_bpp_x16)) {
@@ -4760,8 +4756,6 @@ intel_modeset_pipe_config_late(struct intel_atomic_state *state,
 	struct drm_connector *connector;
 	int i;
 
-	intel_vrr_compute_config_late(crtc_state);
-
 	for_each_new_connector_in_state(&state->base, connector,
 					conn_state, i) {
 		struct intel_encoder *encoder =
@@ -4996,9 +4990,33 @@ static bool allow_vblank_delay_fastset(const struct intel_crtc_state *old_crtc_s
 	 * Allow fastboot to fix up vblank delay (handled via LRR
 	 * codepaths), a bit dodgy as the registers aren't
 	 * double buffered but seems to be working more or less...
+	 *
+	 * Also allow this when the VRR timing generator is always on,
+	 * and optimized guardband is used. In such cases,
+	 * vblank delay may vary even without inherited state, but it's
+	 * still safe as VRR guardband is still same.
 	 */
-	return HAS_LRR(display) && old_crtc_state->inherited &&
+	return HAS_LRR(display) &&
-		!intel_crtc_has_type(old_crtc_state, INTEL_OUTPUT_DSI);
+	       (old_crtc_state->inherited || intel_vrr_always_use_vrr_tg(display)) &&
+	       !intel_crtc_has_type(old_crtc_state, INTEL_OUTPUT_DSI);
+}
+
+static void
+pipe_config_lt_phy_pll_mismatch(struct drm_printer *p, bool fastset,
+				const struct intel_crtc *crtc,
+				const char *name,
+				const struct intel_lt_phy_pll_state *a,
+				const struct intel_lt_phy_pll_state *b)
+{
+	struct intel_display *display = to_intel_display(crtc);
+	char *chipname = "LTPHY";
+
+	pipe_config_mismatch(p, fastset, crtc, name, chipname);
+
+	drm_printf(p, "expected:\n");
+	intel_lt_phy_dump_hw_state(display, a);
+	drm_printf(p, "found:\n");
+	intel_lt_phy_dump_hw_state(display, b);
 }
 
 bool
@@ -5125,6 +5143,16 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config,
 	} \
 } while (0)
 
+#define PIPE_CONF_CHECK_PLL_LT(name) do { \
+	if (!intel_lt_phy_pll_compare_hw_state(&current_config->name, \
+					       &pipe_config->name)) { \
+		pipe_config_lt_phy_pll_mismatch(&p, fastset, crtc, __stringify(name), \
+						&current_config->name, \
+						&pipe_config->name); \
+		ret = false; \
+	} \
+} while (0)
+
 #define PIPE_CONF_CHECK_TIMINGS(name) do {     \
 	PIPE_CONF_CHECK_I(name.crtc_hdisplay); \
 	PIPE_CONF_CHECK_I(name.crtc_htotal); \
@@ -5319,6 +5347,9 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config,
 
 		PIPE_CONF_CHECK_I(scaler_state.scaler_id);
 		PIPE_CONF_CHECK_I(pixel_rate);
+		PIPE_CONF_CHECK_BOOL(hw.casf_params.casf_enable);
+		PIPE_CONF_CHECK_I(hw.casf_params.win_size);
+		PIPE_CONF_CHECK_I(hw.casf_params.strength);
 
 		PIPE_CONF_CHECK_X(gamma_mode);
 		if (display->platform.cherryview)
@@ -5349,7 +5380,9 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config,
 		PIPE_CONF_CHECK_PLL(dpll_hw_state);
 
 	/* FIXME convert MTL+ platforms over to dpll_mgr */
-	if (DISPLAY_VER(display) >= 14)
+	if (HAS_LT_PHY(display))
+		PIPE_CONF_CHECK_PLL_LT(dpll_hw_state.ltpll);
+	else if (DISPLAY_VER(display) >= 14)
 		PIPE_CONF_CHECK_PLL_CX0(dpll_hw_state.cx0pll);
 
 	PIPE_CONF_CHECK_X(dsi_pll.ctrl);
@@ -5443,6 +5476,8 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config,
 		PIPE_CONF_CHECK_I(vrr.guardband);
 	}
 
+	PIPE_CONF_CHECK_I(set_context_latency);
+
 #undef PIPE_CONF_CHECK_X
 #undef PIPE_CONF_CHECK_I
 #undef PIPE_CONF_CHECK_LLI
@@ -5689,6 +5724,23 @@ static int hsw_mode_set_planes_workaround(struct intel_atomic_state *state)
 	return 0;
 }
 
+u8 intel_calc_enabled_pipes(struct intel_atomic_state *state,
+			    u8 enabled_pipes)
+{
+	const struct intel_crtc_state *crtc_state;
+	struct intel_crtc *crtc;
+	int i;
+
+	for_each_new_intel_crtc_in_state(state, crtc, crtc_state, i) {
+		if (crtc_state->hw.enable)
+			enabled_pipes |= BIT(crtc->pipe);
+		else
+			enabled_pipes &= ~BIT(crtc->pipe);
+	}
+
+	return enabled_pipes;
+}
+
 u8 intel_calc_active_pipes(struct intel_atomic_state *state,
 			   u8 active_pipes)
 {
@@ -5718,12 +5770,16 @@ static int intel_modeset_checks(struct intel_atomic_state *state)
 	return 0;
 }
 
-static bool lrr_params_changed(const struct drm_display_mode *old_adjusted_mode,
+static bool lrr_params_changed(const struct intel_crtc_state *old_crtc_state,
-			       const struct drm_display_mode *new_adjusted_mode)
+			       const struct intel_crtc_state *new_crtc_state)
 {
+	const struct drm_display_mode *old_adjusted_mode = &old_crtc_state->hw.adjusted_mode;
+	const struct drm_display_mode *new_adjusted_mode = &new_crtc_state->hw.adjusted_mode;
+
 	return old_adjusted_mode->crtc_vblank_start != new_adjusted_mode->crtc_vblank_start ||
 		old_adjusted_mode->crtc_vblank_end != new_adjusted_mode->crtc_vblank_end ||
-		old_adjusted_mode->crtc_vtotal != new_adjusted_mode->crtc_vtotal;
+		old_adjusted_mode->crtc_vtotal != new_adjusted_mode->crtc_vtotal ||
+		old_crtc_state->set_context_latency != new_crtc_state->set_context_latency;
 }
 
 static void intel_crtc_check_fastset(const struct intel_crtc_state *old_crtc_state,
@@ -5749,8 +5805,7 @@ static void intel_crtc_check_fastset(const struct intel_crtc_state *old_crtc_sta
 				   &new_crtc_state->dp_m_n))
 		new_crtc_state->update_m_n = false;
 
-	if (!lrr_params_changed(&old_crtc_state->hw.adjusted_mode,
+	if (!lrr_params_changed(old_crtc_state, new_crtc_state))
-				&new_crtc_state->hw.adjusted_mode))
 		new_crtc_state->update_lrr = false;
 
 	if (intel_crtc_needs_modeset(new_crtc_state))
@@ -6342,7 +6397,6 @@ int intel_atomic_check(struct drm_device *dev,
 	struct intel_crtc_state *old_crtc_state, *new_crtc_state;
 	struct intel_crtc *crtc;
 	int ret, i;
-	bool any_ms = false;
 
 	if (!intel_display_driver_check_access(display))
 		return -ENODEV;
@@ -6450,14 +6504,11 @@ int intel_atomic_check(struct drm_device *dev,
 		if (!intel_crtc_needs_modeset(new_crtc_state))
 			continue;
 
-		any_ms = true;
-
 		intel_dpll_release(state, crtc);
 	}
 
-	if (any_ms && !check_digital_port_conflicts(state)) {
+	if (intel_any_crtc_needs_modeset(state) && !check_digital_port_conflicts(state)) {
-		drm_dbg_kms(display->drm,
+		drm_dbg_kms(display->drm, "rejecting conflicting digital port configuration\n");
-			    "rejecting conflicting digital port configuration\n");
 		ret = -EINVAL;
 		goto fail;
 	}
@@ -6466,29 +6517,25 @@ int intel_atomic_check(struct drm_device *dev,
 	if (ret)
 		goto fail;
 
+	for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i)
+		new_crtc_state->min_cdclk = intel_crtc_min_cdclk(new_crtc_state);
+
 	ret = intel_compute_global_watermarks(state);
 	if (ret)
 		goto fail;
 
-	ret = intel_bw_atomic_check(state, any_ms);
+	ret = intel_bw_atomic_check(state);
 	if (ret)
 		goto fail;
 
-	ret = intel_cdclk_atomic_check(state, &any_ms);
+	ret = intel_cdclk_atomic_check(state);
 	if (ret)
 		goto fail;
 
-	if (intel_any_crtc_needs_modeset(state))
+	if (intel_any_crtc_needs_modeset(state)) {
-		any_ms = true;
-
-	if (any_ms) {
 		ret = intel_modeset_checks(state);
 		if (ret)
 			goto fail;
-
-		ret = intel_modeset_calc_cdclk(state);
-		if (ret)
-			return ret;
 	}
 
 	ret = intel_pmdemand_atomic_check(state);
@@ -6739,6 +6786,11 @@ static void intel_pre_update_crtc(struct intel_atomic_state *state,
 			intel_vrr_set_transcoder_timings(new_crtc_state);
 	}
 
+	if (intel_casf_enabling(new_crtc_state, old_crtc_state))
+		intel_casf_enable(new_crtc_state);
+	else if (new_crtc_state->hw.casf_params.strength != old_crtc_state->hw.casf_params.strength)
+		intel_casf_update_strength(new_crtc_state);
+
 	intel_fbc_update(state, crtc);
 
 	drm_WARN_ON(display->drm, !intel_display_power_is_enabled(display, POWER_DOMAIN_DC_OFF));
@@ -7307,7 +7359,7 @@ static void intel_atomic_dsb_finish(struct intel_atomic_state *state,
 		intel_dsb_wait_vblanks(new_crtc_state->dsb_commit, 1);
 
 		intel_vrr_send_push(new_crtc_state->dsb_commit, new_crtc_state);
-		intel_dsb_wait_vblank_delay(state, new_crtc_state->dsb_commit);
+		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);
 		intel_dsb_interrupt(new_crtc_state->dsb_commit);
@@ -7397,13 +7449,13 @@ static void intel_atomic_commit_tail(struct intel_atomic_state *state)
 	 */
 	intel_pmdemand_pre_plane_update(state);
 
-	if (state->modeset) {
+	if (state->modeset)
 		drm_atomic_helper_update_legacy_modeset_state(display->drm, &state->base);
 
-		intel_set_cdclk_pre_plane_update(state);
+	intel_set_cdclk_pre_plane_update(state);
 
+	if (state->modeset)
 		intel_modeset_verify_disabled(state);
-	}
 
 	intel_sagv_pre_plane_update(state);
 
@@ -7516,8 +7568,7 @@ static void intel_atomic_commit_tail(struct intel_atomic_state *state)
 		intel_verify_planes(state);
 
 	intel_sagv_post_plane_update(state);
-	if (state->modeset)
+	intel_set_cdclk_post_plane_update(state);
-		intel_set_cdclk_post_plane_update(state);
 	intel_pmdemand_post_plane_update(state);
 
 	drm_atomic_helper_commit_hw_done(&state->base);
@@ -8003,6 +8054,14 @@ enum drm_mode_status intel_mode_valid(struct drm_device *dev,
 	    mode->vtotal > vtotal_max)
 		return MODE_V_ILLEGAL;
 
+	/*
+	 * WM_LINETIME only goes up to (almost) 64 usec, and also
+	 * knowing that the linetime is always bounded will ease the
+	 * mind during various calculations.
+	 */
+	if (DIV_ROUND_UP(mode->htotal * 1000, mode->clock) > 64)
+		return MODE_H_ILLEGAL;
+
 	return MODE_OK;
 }
 
@@ -8327,7 +8386,5 @@ void i830_disable_pipe(struct intel_display *display, enum pipe pipe)
 
 bool intel_scanout_needs_vtd_wa(struct intel_display *display)
 {
-	struct drm_i915_private *i915 = to_i915(display->drm);
+	return IS_DISPLAY_VER(display, 6, 11) && intel_display_vtd_active(display);
-
-	return IS_DISPLAY_VER(display, 6, 11) && i915_vtd_active(i915);
 }

drivers/gpu/drm/i915/display/intel_display.h

@@ -394,6 +394,8 @@ enum phy_fia {
 				       i)
 
 int intel_atomic_check(struct drm_device *dev, struct drm_atomic_state *state);
+u8 intel_calc_enabled_pipes(struct intel_atomic_state *state,
+			    u8 enabled_pipes);
 u8 intel_calc_active_pipes(struct intel_atomic_state *state,
 			   u8 active_pipes);
 void intel_link_compute_m_n(u16 bpp, int nlanes,
@@ -435,11 +437,6 @@ void intel_enable_transcoder(const struct intel_crtc_state *new_crtc_state);
 void intel_disable_transcoder(const struct intel_crtc_state *old_crtc_state);
 void i830_enable_pipe(struct intel_display *display, enum pipe pipe);
 void i830_disable_pipe(struct intel_display *display, enum pipe pipe);
-int vlv_get_hpll_vco(struct drm_device *drm);
-int vlv_get_cck_clock(struct drm_device *drm,
-		      const char *name, u32 reg, int ref_freq);
-int vlv_get_cck_clock_hpll(struct drm_device *drm,
-			   const char *name, u32 reg);
 bool intel_has_pending_fb_unpin(struct intel_display *display);
 void intel_encoder_destroy(struct drm_encoder *encoder);
 struct drm_display_mode *
@@ -528,7 +525,6 @@ void intel_init_display_hooks(struct intel_display *display);
 void intel_setup_outputs(struct intel_display *display);
 int intel_initial_commit(struct intel_display *display);
 void intel_panel_sanitize_ssc(struct intel_display *display);
-void intel_update_czclk(struct intel_display *display);
 enum drm_mode_status intel_mode_valid(struct drm_device *dev,
 				      const struct drm_display_mode *mode);
 int intel_atomic_commit(struct drm_device *dev, struct drm_atomic_state *_state,

drivers/gpu/drm/i915/display/intel_display_conversion.c

@@ -1,15 +1,21 @@
 // SPDX-License-Identifier: MIT
 /* Copyright © 2024 Intel Corporation */
 
-#include "i915_drv.h"
+#include <drm/intel/display_member.h>
-#include "intel_display_conversion.h"
 
-static struct intel_display *__i915_to_display(struct drm_i915_private *i915)
+#include "intel_display_conversion.h"
-{
-	return i915->display;
-}
 
 struct intel_display *__drm_to_display(struct drm_device *drm)
 {
-	return __i915_to_display(to_i915(drm));
+	/*
+	 * Note: This relies on both struct drm_i915_private and struct
+	 * xe_device having the struct drm_device and struct intel_display *
+	 * members at the same relative offsets, as defined by struct
+	 * __intel_generic_device.
+	 *
+	 * See also INTEL_DISPLAY_MEMBER_STATIC_ASSERT().
+	 */
+	struct __intel_generic_device *d = container_of(drm, struct __intel_generic_device, drm);
+
+	return d->display;
 }

drivers/gpu/drm/i915/display/intel_display_core.h

@@ -41,6 +41,7 @@ struct intel_cdclk_vals;
 struct intel_color_funcs;
 struct intel_crtc;
 struct intel_crtc_state;
+struct intel_display_parent_interface;
 struct intel_dmc;
 struct intel_dpll_global_funcs;
 struct intel_dpll_mgr;
@@ -291,6 +292,9 @@ struct intel_display {
 	/* Intel PCH: where the south display engine lives */
 	enum intel_pch pch_type;
 
+	/* Parent, or core, driver functions exposed to display */
+	const struct intel_display_parent_interface *parent;
+
 	/* Display functions */
 	struct {
 		/* Top level crtc-ish functions */
@@ -369,6 +373,10 @@ struct intel_display {
 		struct intel_global_obj obj;
 	} dbuf;
 
+	struct {
+		struct intel_global_obj obj;
+	} dbuf_bw;
+
 	struct {
 		/*
 		 * dkl.phy_lock protects against concurrent access of the
@@ -475,7 +483,21 @@ struct intel_display {
 
 		struct work_struct vblank_notify_work;
 
-		u32 de_irq_mask[I915_MAX_PIPES];
+		/*
+		 * Cached value of VLV/CHV IMR to avoid reads in updating the
+		 * bitfield.
+		 */
+		u32 vlv_imr_mask;
+		/*
+		 * Cached value of gen 5-7 DE IMR to avoid reads in updating the
+		 * bitfield.
+		 */
+		u32 ilk_de_imr_mask;
+		/*
+		 * Cached value of BDW+ DE pipe IMR to avoid reads in updating
+		 * the bitfield.
+		 */
+		u32 de_pipe_imr_mask[I915_MAX_PIPES];
 		u32 pipestat_irq_mask[I915_MAX_PIPES];
 	} irq;
 
@@ -567,6 +589,11 @@ struct intel_display {
 		u32 bxt_phy_grc;
 	} state;
 
+	struct {
+		unsigned int hpll_freq;
+		unsigned int czclk_freq;
+	} vlv_clock;
+
 	struct {
 		/* ordered wq for modesets */
 		struct workqueue_struct *modeset;

drivers/gpu/drm/i915/display/intel_display_debugfs.c

@@ -47,6 +47,7 @@
 #include "intel_psr_regs.h"
 #include "intel_vdsc.h"
 #include "intel_wm.h"
+#include "intel_tc.h"
 
 static struct intel_display *node_to_intel_display(struct drm_info_node *node)
 {
@@ -246,6 +247,8 @@ static void intel_connector_info(struct seq_file *m,
 {
 	struct intel_connector *intel_connector = to_intel_connector(connector);
 	const struct drm_display_mode *mode;
+	struct drm_printer p = drm_seq_file_printer(m);
+	struct intel_digital_port *dig_port = NULL;
 
 	seq_printf(m, "[CONNECTOR:%d:%s]: status: %s\n",
 		   connector->base.id, connector->name,
@@ -268,14 +271,19 @@ static void intel_connector_info(struct seq_file *m,
 			intel_dp_mst_info(m, intel_connector);
 		else
 			intel_dp_info(m, intel_connector);
+		dig_port = dp_to_dig_port(intel_attached_dp(intel_connector));
 		break;
 	case DRM_MODE_CONNECTOR_HDMIA:
 		intel_hdmi_info(m, intel_connector);
+		dig_port = hdmi_to_dig_port(intel_attached_hdmi(intel_connector));
 		break;
 	default:
 		break;
 	}
 
+	if (dig_port != NULL && intel_encoder_is_tc(&dig_port->base))
+		intel_tc_info(&p, dig_port);
+
 	intel_hdcp_info(m, intel_connector);
 
 	seq_printf(m, "\tmax bpc: %u\n", connector->display_info.bpc);

drivers/gpu/drm/i915/display/intel_display_device.c

@@ -1404,8 +1404,20 @@ static const struct platform_desc bmg_desc = {
 	PLATFORM_GROUP(dgfx),
 };
 
+static const u16 wcl_ids[] = {
+	INTEL_WCL_IDS(ID),
+	0
+};
+
 static const struct platform_desc ptl_desc = {
 	PLATFORM(pantherlake),
+	.subplatforms = (const struct subplatform_desc[]) {
+		{
+			SUBPLATFORM(pantherlake, wildcatlake),
+			.pciidlist = wcl_ids,
+		},
+		{},
+	}
 };
 
 __diag_pop();
@@ -1482,6 +1494,7 @@ static const struct {
 	INTEL_LNL_IDS(INTEL_DISPLAY_DEVICE, &lnl_desc),
 	INTEL_BMG_IDS(INTEL_DISPLAY_DEVICE, &bmg_desc),
 	INTEL_PTL_IDS(INTEL_DISPLAY_DEVICE, &ptl_desc),
+	INTEL_WCL_IDS(INTEL_DISPLAY_DEVICE, &ptl_desc),
 };
 
 static const struct {
@@ -1634,7 +1647,8 @@ static void display_platforms_or(struct intel_display_platforms *dst,
 	bitmap_or(dst->bitmap, dst->bitmap, src->bitmap, display_platforms_num_bits());
 }
 
-struct intel_display *intel_display_device_probe(struct pci_dev *pdev)
+struct intel_display *intel_display_device_probe(struct pci_dev *pdev,
+						 const struct intel_display_parent_interface *parent)
 {
 	struct intel_display *display;
 	const struct intel_display_device_info *info;
@@ -1650,6 +1664,8 @@ struct intel_display *intel_display_device_probe(struct pci_dev *pdev)
 	/* Add drm device backpointer as early as possible. */
 	display->drm = pci_get_drvdata(pdev);
 
+	display->parent = parent;
+
 	intel_display_params_copy(&display->params);
 
 	if (has_no_display(pdev)) {

drivers/gpu/drm/i915/display/intel_display_device.h

@@ -13,6 +13,7 @@
 
 struct drm_printer;
 struct intel_display;
+struct intel_display_parent_interface;
 struct pci_dev;
 
 /*
@@ -101,7 +102,9 @@ struct pci_dev;
 	/* Display ver 14.1 (based on GMD ID) */ \
 	func(battlemage) \
 	/* Display ver 30 (based on GMD ID) */ \
-	func(pantherlake)
+	func(pantherlake) \
+	func(pantherlake_wildcatlake)
+
 
 #define __MEMBER(name) unsigned long name:1;
 #define __COUNT(x) 1 +
@@ -140,10 +143,13 @@ struct intel_display_platforms {
 	func(overlay_needs_physical); \
 	func(supports_tv);
 
+#define HAS_128B_Y_TILING(__display)	(!(__display)->platform.i915g && !(__display)->platform.i915gm)
 #define HAS_4TILE(__display)		((__display)->platform.dg2 || DISPLAY_VER(__display) >= 14)
 #define HAS_ASYNC_FLIPS(__display)	(DISPLAY_VER(__display) >= 5)
 #define HAS_AS_SDP(__display)		(DISPLAY_VER(__display) >= 13)
+#define HAS_AUX_CCS(__display)		(IS_DISPLAY_VER(__display, 9, 12) || (__display)->platform.alderlake_p || (__display)->platform.meteorlake)
 #define HAS_BIGJOINER(__display)	(DISPLAY_VER(__display) >= 11 && HAS_DSC(__display))
+#define HAS_CASF(__display)		(DISPLAY_VER(__display) >= 20)
 #define HAS_CDCLK_CRAWL(__display)	(DISPLAY_INFO(__display)->has_cdclk_crawl)
 #define HAS_CDCLK_SQUASH(__display)	(DISPLAY_INFO(__display)->has_cdclk_squash)
 #define HAS_CMRR(__display)		(DISPLAY_VER(__display) >= 20)
@@ -155,7 +161,7 @@ struct intel_display_platforms {
 #define HAS_DISPLAY(__display)		(DISPLAY_RUNTIME_INFO(__display)->pipe_mask != 0)
 #define HAS_DMC(__display)		(DISPLAY_RUNTIME_INFO(__display)->has_dmc)
 #define HAS_DMC_WAKELOCK(__display)	(DISPLAY_VER(__display) >= 20)
-#define HAS_DOUBLE_BUFFERED_M_N(__display)	(DISPLAY_VER(__display) >= 9 || (__display)->platform.broadwell)
+#define HAS_DOUBLE_BUFFERED_M_N(__display)	(IS_DISPLAY_VER((__display), 9, 14) || (__display)->platform.broadwell)
 #define HAS_DOUBLE_BUFFERED_LUT(__display)	(DISPLAY_VER(__display) >= 30)
 #define HAS_DOUBLE_WIDE(__display)	(DISPLAY_VER(__display) < 4)
 #define HAS_DP20(__display)		((__display)->platform.dg2 || DISPLAY_VER(__display) >= 14)
@@ -308,7 +314,8 @@ struct intel_display_device_info {
 
 bool intel_display_device_present(struct intel_display *display);
 bool intel_display_device_enabled(struct intel_display *display);
-struct intel_display *intel_display_device_probe(struct pci_dev *pdev);
+struct intel_display *intel_display_device_probe(struct pci_dev *pdev,
+						 const struct intel_display_parent_interface *parent);
 void intel_display_device_remove(struct intel_display *display);
 void intel_display_device_info_runtime_init(struct intel_display *display);
 

drivers/gpu/drm/i915/display/intel_display_driver.c

@@ -18,7 +18,7 @@
 #include <drm/drm_vblank.h>
 
 #include "i915_drv.h"
-#include "i915_utils.h"
+#include "i915_utils.h" /* for i915_inject_probe_failure() */
 #include "i9xx_wm.h"
 #include "intel_acpi.h"
 #include "intel_atomic.h"
@@ -28,12 +28,14 @@
 #include "intel_cdclk.h"
 #include "intel_color.h"
 #include "intel_crtc.h"
+#include "intel_dbuf_bw.h"
 #include "intel_display_core.h"
 #include "intel_display_debugfs.h"
 #include "intel_display_driver.h"
 #include "intel_display_irq.h"
 #include "intel_display_power.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_display_wa.h"
 #include "intel_dkl_phy.h"
 #include "intel_dmc.h"
@@ -285,6 +287,10 @@ int intel_display_driver_probe_noirq(struct intel_display *display)
 	if (ret)
 		goto cleanup_wq_unordered;
 
+	ret = intel_dbuf_bw_init(display);
+	if (ret)
+		goto cleanup_wq_unordered;
+
 	ret = intel_bw_init(display);
 	if (ret)
 		goto cleanup_wq_unordered;
@@ -482,7 +488,6 @@ int intel_display_driver_probe_nogem(struct intel_display *display)
 	intel_dpll_init(display);
 	intel_fdi_pll_freq_update(display);
 
-	intel_update_czclk(display);
 	intel_display_driver_init_hw(display);
 	intel_dpll_update_ref_clks(display);
 

drivers/gpu/drm/i915/display/intel_display_irq.c

@@ -140,14 +140,14 @@ void ilk_update_display_irq(struct intel_display *display,
 	lockdep_assert_held(&display->irq.lock);
 	drm_WARN_ON(display->drm, enabled_irq_mask & ~interrupt_mask);
 
-	new_val = dev_priv->irq_mask;
+	new_val = display->irq.ilk_de_imr_mask;
 	new_val &= ~interrupt_mask;
 	new_val |= (~enabled_irq_mask & interrupt_mask);
 
-	if (new_val != dev_priv->irq_mask &&
+	if (new_val != display->irq.ilk_de_imr_mask &&
 	    !drm_WARN_ON(display->drm, !intel_irqs_enabled(dev_priv))) {
-		dev_priv->irq_mask = new_val;
+		display->irq.ilk_de_imr_mask = new_val;
-		intel_de_write(display, DEIMR, dev_priv->irq_mask);
+		intel_de_write(display, DEIMR, display->irq.ilk_de_imr_mask);
 		intel_de_posting_read(display, DEIMR);
 	}
 }
@@ -215,13 +215,13 @@ static void bdw_update_pipe_irq(struct intel_display *display,
 	if (drm_WARN_ON(display->drm, !intel_irqs_enabled(dev_priv)))
 		return;
 
-	new_val = display->irq.de_irq_mask[pipe];
+	new_val = display->irq.de_pipe_imr_mask[pipe];
 	new_val &= ~interrupt_mask;
 	new_val |= (~enabled_irq_mask & interrupt_mask);
 
-	if (new_val != display->irq.de_irq_mask[pipe]) {
+	if (new_val != display->irq.de_pipe_imr_mask[pipe]) {
-		display->irq.de_irq_mask[pipe] = new_val;
+		display->irq.de_pipe_imr_mask[pipe] = new_val;
-		intel_de_write(display, GEN8_DE_PIPE_IMR(pipe), display->irq.de_irq_mask[pipe]);
+		intel_de_write(display, GEN8_DE_PIPE_IMR(pipe), display->irq.de_pipe_imr_mask[pipe]);
 		intel_de_posting_read(display, GEN8_DE_PIPE_IMR(pipe));
 	}
 }
@@ -872,7 +872,7 @@ static void ilk_gtt_fault_irq_handler(struct intel_display *display)
 	}
 }
 
-void ilk_display_irq_handler(struct intel_display *display, u32 de_iir)
+static void _ilk_display_irq_handler(struct intel_display *display, u32 de_iir)
 {
 	enum pipe pipe;
 	u32 hotplug_trigger = de_iir & DE_DP_A_HOTPLUG;
@@ -923,7 +923,7 @@ void ilk_display_irq_handler(struct intel_display *display, u32 de_iir)
 		ilk_display_rps_irq_handler(display);
 }
 
-void ivb_display_irq_handler(struct intel_display *display, u32 de_iir)
+static void _ivb_display_irq_handler(struct intel_display *display, u32 de_iir)
 {
 	enum pipe pipe;
 	u32 hotplug_trigger = de_iir & DE_DP_A_HOTPLUG_IVB;
@@ -972,6 +972,53 @@ void ivb_display_irq_handler(struct intel_display *display, u32 de_iir)
 	}
 }
 
+void ilk_display_irq_master_disable(struct intel_display *display, u32 *de_ier, u32 *sde_ier)
+{
+	/* disable master interrupt before clearing iir  */
+	*de_ier = intel_de_read_fw(display, DEIER);
+	intel_de_write_fw(display, DEIER, *de_ier & ~DE_MASTER_IRQ_CONTROL);
+
+	/*
+	 * Disable south interrupts. We'll only write to SDEIIR once, so further
+	 * interrupts will be stored on its back queue, and then we'll be able
+	 * to process them after we restore SDEIER (as soon as we restore it,
+	 * we'll get an interrupt if SDEIIR still has something to process due
+	 * to its back queue).
+	 */
+	if (!HAS_PCH_NOP(display)) {
+		*sde_ier = intel_de_read_fw(display, SDEIER);
+		intel_de_write_fw(display, SDEIER, 0);
+	} else {
+		*sde_ier = 0;
+	}
+}
+
+void ilk_display_irq_master_enable(struct intel_display *display, u32 de_ier, u32 sde_ier)
+{
+	intel_de_write_fw(display, DEIER, de_ier);
+
+	if (sde_ier)
+		intel_de_write_fw(display, SDEIER, sde_ier);
+}
+
+bool ilk_display_irq_handler(struct intel_display *display)
+{
+	u32 de_iir;
+	bool handled = false;
+
+	de_iir = intel_de_read_fw(display, DEIIR);
+	if (de_iir) {
+		intel_de_write_fw(display, DEIIR, de_iir);
+		if (DISPLAY_VER(display) >= 7)
+			_ivb_display_irq_handler(display, de_iir);
+		else
+			_ilk_display_irq_handler(display, de_iir);
+		handled = true;
+	}
+
+	return handled;
+}
+
 static u32 gen8_de_port_aux_mask(struct intel_display *display)
 {
 	u32 mask;
@@ -1865,8 +1912,6 @@ void vlv_display_error_irq_handler(struct intel_display *display,
 
 static void _vlv_display_irq_reset(struct intel_display *display)
 {
-	struct drm_i915_private *dev_priv = to_i915(display->drm);
-
 	if (display->platform.cherryview)
 		intel_de_write(display, DPINVGTT, DPINVGTT_STATUS_MASK_CHV);
 	else
@@ -1881,7 +1926,7 @@ static void _vlv_display_irq_reset(struct intel_display *display)
 	i9xx_pipestat_irq_reset(display);
 
 	intel_display_irq_regs_reset(display, VLV_IRQ_REGS);
-	dev_priv->irq_mask = ~0u;
+	display->irq.vlv_imr_mask = ~0u;
 }
 
 void vlv_display_irq_reset(struct intel_display *display)
@@ -1902,6 +1947,22 @@ void i9xx_display_irq_reset(struct intel_display *display)
 	i9xx_pipestat_irq_reset(display);
 }
 
+u32 i9xx_display_irq_enable_mask(struct intel_display *display)
+{
+	u32 enable_mask;
+
+	enable_mask = I915_DISPLAY_PIPE_A_EVENT_INTERRUPT |
+		I915_DISPLAY_PIPE_B_EVENT_INTERRUPT;
+
+	if (DISPLAY_VER(display) >= 3)
+		enable_mask |= I915_ASLE_INTERRUPT;
+
+	if (HAS_HOTPLUG(display))
+		enable_mask |= I915_DISPLAY_PORT_INTERRUPT;
+
+	return enable_mask;
+}
+
 void i915_display_irq_postinstall(struct intel_display *display)
 {
 	/*
@@ -1939,7 +2000,6 @@ static u32 vlv_error_mask(void)
 
 static void _vlv_display_irq_postinstall(struct intel_display *display)
 {
-	struct drm_i915_private *dev_priv = to_i915(display->drm);
 	u32 pipestat_mask;
 	u32 enable_mask;
 	enum pipe pipe;
@@ -1973,11 +2033,11 @@ static void _vlv_display_irq_postinstall(struct intel_display *display)
 		enable_mask |= I915_DISPLAY_PIPE_C_EVENT_INTERRUPT |
 			I915_LPE_PIPE_C_INTERRUPT;
 
-	drm_WARN_ON(display->drm, dev_priv->irq_mask != ~0u);
+	drm_WARN_ON(display->drm, display->irq.vlv_imr_mask != ~0u);
 
-	dev_priv->irq_mask = ~enable_mask;
+	display->irq.vlv_imr_mask = ~enable_mask;
 
-	intel_display_irq_regs_init(display, VLV_IRQ_REGS, dev_priv->irq_mask, enable_mask);
+	intel_display_irq_regs_init(display, VLV_IRQ_REGS, display->irq.vlv_imr_mask, enable_mask);
 }
 
 void vlv_display_irq_postinstall(struct intel_display *display)
@@ -1988,7 +2048,7 @@ void vlv_display_irq_postinstall(struct intel_display *display)
 	spin_unlock_irq(&display->irq.lock);
 }
 
-void ibx_display_irq_reset(struct intel_display *display)
+static void ibx_display_irq_reset(struct intel_display *display)
 {
 	if (HAS_PCH_NOP(display))
 		return;
@@ -1999,6 +2059,24 @@ void ibx_display_irq_reset(struct intel_display *display)
 		intel_de_write(display, SERR_INT, 0xffffffff);
 }
 
+void ilk_display_irq_reset(struct intel_display *display)
+{
+	struct intel_uncore *uncore = to_intel_uncore(display->drm);
+
+	gen2_irq_reset(uncore, DE_IRQ_REGS);
+	display->irq.ilk_de_imr_mask = ~0u;
+
+	if (DISPLAY_VER(display) == 7)
+		intel_de_write(display, GEN7_ERR_INT, 0xffffffff);
+
+	if (display->platform.haswell) {
+		intel_de_write(display, EDP_PSR_IMR, 0xffffffff);
+		intel_de_write(display, EDP_PSR_IIR, 0xffffffff);
+	}
+
+	ibx_display_irq_reset(display);
+}
+
 void gen8_display_irq_reset(struct intel_display *display)
 {
 	enum pipe pipe;
@@ -2088,8 +2166,8 @@ void gen8_irq_power_well_post_enable(struct intel_display *display,
 
 	for_each_pipe_masked(display, pipe, pipe_mask)
 		intel_display_irq_regs_init(display, GEN8_DE_PIPE_IRQ_REGS(pipe),
-					    display->irq.de_irq_mask[pipe],
+					    display->irq.de_pipe_imr_mask[pipe],
-					    ~display->irq.de_irq_mask[pipe] | extra_ier);
+					    ~display->irq.de_pipe_imr_mask[pipe] | extra_ier);
 
 	spin_unlock_irq(&display->irq.lock);
 }
@@ -2183,8 +2261,6 @@ out:
 
 void ilk_de_irq_postinstall(struct intel_display *display)
 {
-	struct drm_i915_private *i915 = to_i915(display->drm);
-
 	u32 display_mask, extra_mask;
 
 	if (DISPLAY_VER(display) >= 7) {
@@ -2216,11 +2292,11 @@ void ilk_de_irq_postinstall(struct intel_display *display)
 	if (display->platform.ironlake && display->platform.mobile)
 		extra_mask |= DE_PCU_EVENT;
 
-	i915->irq_mask = ~display_mask;
+	display->irq.ilk_de_imr_mask = ~display_mask;
 
 	ibx_irq_postinstall(display);
 
-	intel_display_irq_regs_init(display, DE_IRQ_REGS, i915->irq_mask,
+	intel_display_irq_regs_init(display, DE_IRQ_REGS, display->irq.ilk_de_imr_mask,
 				    display_mask | extra_mask);
 }
 
@@ -2305,12 +2381,12 @@ void gen8_de_irq_postinstall(struct intel_display *display)
 	}
 
 	for_each_pipe(display, pipe) {
-		display->irq.de_irq_mask[pipe] = ~de_pipe_masked;
+		display->irq.de_pipe_imr_mask[pipe] = ~de_pipe_masked;
 
 		if (intel_display_power_is_enabled(display,
 						   POWER_DOMAIN_PIPE(pipe)))
 			intel_display_irq_regs_init(display, GEN8_DE_PIPE_IRQ_REGS(pipe),
-						    display->irq.de_irq_mask[pipe],
+						    display->irq.de_pipe_imr_mask[pipe],
 						    de_pipe_enables);
 	}
 

drivers/gpu/drm/i915/display/intel_display_irq.h

@@ -47,8 +47,9 @@ void i965_disable_vblank(struct drm_crtc *crtc);
 void ilk_disable_vblank(struct drm_crtc *crtc);
 void bdw_disable_vblank(struct drm_crtc *crtc);
 
-void ivb_display_irq_handler(struct intel_display *display, u32 de_iir);
+void ilk_display_irq_master_disable(struct intel_display *display, u32 *de_ier, u32 *sde_ier);
-void ilk_display_irq_handler(struct intel_display *display, u32 de_iir);
+void ilk_display_irq_master_enable(struct intel_display *display, u32 de_ier, u32 sde_ier);
+bool ilk_display_irq_handler(struct intel_display *display);
 void gen8_de_irq_handler(struct intel_display *display, u32 master_ctl);
 void gen11_display_irq_handler(struct intel_display *display);
 
@@ -56,11 +57,12 @@ u32 gen11_gu_misc_irq_ack(struct intel_display *display, const u32 master_ctl);
 void gen11_gu_misc_irq_handler(struct intel_display *display, const u32 iir);
 
 void i9xx_display_irq_reset(struct intel_display *display);
-void ibx_display_irq_reset(struct intel_display *display);
+void ilk_display_irq_reset(struct intel_display *display);
 void vlv_display_irq_reset(struct intel_display *display);
 void gen8_display_irq_reset(struct intel_display *display);
 void gen11_display_irq_reset(struct intel_display *display);
 
+u32 i9xx_display_irq_enable_mask(struct intel_display *display);
 void i915_display_irq_postinstall(struct intel_display *display);
 void i965_display_irq_postinstall(struct intel_display *display);
 void vlv_display_irq_postinstall(struct intel_display *display);

drivers/gpu/drm/i915/display/intel_display_jiffies.h

@@ -0,0 +1,43 @@
+/* SPDX-License-Identifier: MIT */
+/* Copyright © 2025 Intel Corporation */
+
+#ifndef __INTEL_DISPLAY_JIFFIES_H__
+#define __INTEL_DISPLAY_JIFFIES_H__
+
+#include <linux/jiffies.h>
+
+static inline unsigned long msecs_to_jiffies_timeout(const unsigned int m)
+{
+	unsigned long j = msecs_to_jiffies(m);
+
+	return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1);
+}
+
+/*
+ * If you need to wait X milliseconds between events A and B, but event B
+ * doesn't happen exactly after event A, you record the timestamp (jiffies) of
+ * when event A happened, then just before event B you call this function and
+ * pass the timestamp as the first argument, and X as the second argument.
+ */
+static inline void
+wait_remaining_ms_from_jiffies(unsigned long timestamp_jiffies, int to_wait_ms)
+{
+	unsigned long target_jiffies, tmp_jiffies, remaining_jiffies;
+
+	/*
+	 * Don't re-read the value of "jiffies" every time since it may change
+	 * behind our back and break the math.
+	 */
+	tmp_jiffies = jiffies;
+	target_jiffies = timestamp_jiffies +
+			 msecs_to_jiffies_timeout(to_wait_ms);
+
+	if (time_after(target_jiffies, tmp_jiffies)) {
+		remaining_jiffies = target_jiffies - tmp_jiffies;
+		while (remaining_jiffies)
+			remaining_jiffies =
+			    schedule_timeout_uninterruptible(remaining_jiffies);
+	}
+}
+
+#endif /* __INTEL_DISPLAY_JIFFIES_H__ */

drivers/gpu/drm/i915/display/intel_display_power.c

@@ -11,7 +11,6 @@
 #include "i915_drv.h"
 #include "i915_irq.h"
 #include "i915_reg.h"
-#include "i915_utils.h"
 #include "intel_backlight_regs.h"
 #include "intel_cdclk.h"
 #include "intel_clock_gating.h"
@@ -23,6 +22,7 @@
 #include "intel_display_regs.h"
 #include "intel_display_rpm.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dmc.h"
 #include "intel_mchbar_regs.h"
 #include "intel_pch_refclk.h"

drivers/gpu/drm/i915/display/intel_display_power_map.c

@@ -1516,7 +1516,11 @@ static const struct i915_power_well_desc xelpdp_power_wells_main[] = {
 		.ops = &hsw_power_well_ops,
 		.irq_pipe_mask = BIT(PIPE_D),
 		.has_fuses = true,
-	}, {
+	},
+};
+
+static const struct i915_power_well_desc xelpdp_power_wells_aux[] = {
+	{
 		.instances = &I915_PW_INSTANCES(
 			I915_PW("AUX_A", &icl_pwdoms_aux_a, .xelpdp.aux_ch = AUX_CH_A),
 			I915_PW("AUX_B", &icl_pwdoms_aux_b, .xelpdp.aux_ch = AUX_CH_B),
@@ -1534,6 +1538,7 @@ static const struct i915_power_well_desc_list xelpdp_power_wells[] = {
 	I915_PW_DESCRIPTORS(icl_power_wells_pw_1),
 	I915_PW_DESCRIPTORS(xelpd_power_wells_dc_off),
 	I915_PW_DESCRIPTORS(xelpdp_power_wells_main),
+	I915_PW_DESCRIPTORS(xelpdp_power_wells_aux),
 };
 
 I915_DECL_PW_DOMAINS(xe2lpd_pwdoms_pica_tc,
@@ -1584,6 +1589,7 @@ static const struct i915_power_well_desc_list xe2lpd_power_wells[] = {
 	I915_PW_DESCRIPTORS(xe2lpd_power_wells_dcoff),
 	I915_PW_DESCRIPTORS(xelpdp_power_wells_main),
 	I915_PW_DESCRIPTORS(xe2lpd_power_wells_pica),
+	I915_PW_DESCRIPTORS(xelpdp_power_wells_aux),
 };
 
 /*
@@ -1677,16 +1683,6 @@ static const struct i915_power_well_desc xe3lpd_power_wells_main[] = {
 		.ops = &hsw_power_well_ops,
 		.irq_pipe_mask = BIT(PIPE_D),
 		.has_fuses = true,
-	}, {
-		.instances = &I915_PW_INSTANCES(
-			I915_PW("AUX_A", &icl_pwdoms_aux_a, .xelpdp.aux_ch = AUX_CH_A),
-			I915_PW("AUX_B", &icl_pwdoms_aux_b, .xelpdp.aux_ch = AUX_CH_B),
-			I915_PW("AUX_TC1", &xelpdp_pwdoms_aux_tc1, .xelpdp.aux_ch = AUX_CH_USBC1),
-			I915_PW("AUX_TC2", &xelpdp_pwdoms_aux_tc2, .xelpdp.aux_ch = AUX_CH_USBC2),
-			I915_PW("AUX_TC3", &xelpdp_pwdoms_aux_tc3, .xelpdp.aux_ch = AUX_CH_USBC3),
-			I915_PW("AUX_TC4", &xelpdp_pwdoms_aux_tc4, .xelpdp.aux_ch = AUX_CH_USBC4),
-		),
-		.ops = &xelpdp_aux_power_well_ops,
 	},
 };
 
@@ -1715,6 +1711,7 @@ static const struct i915_power_well_desc_list xe3lpd_power_wells[] = {
 	I915_PW_DESCRIPTORS(xe3lpd_power_wells_dcoff),
 	I915_PW_DESCRIPTORS(xe3lpd_power_wells_main),
 	I915_PW_DESCRIPTORS(xe2lpd_power_wells_pica),
+	I915_PW_DESCRIPTORS(xelpdp_power_wells_aux),
 };
 
 static const struct i915_power_well_desc wcl_power_wells_main[] = {
@@ -1751,7 +1748,11 @@ static const struct i915_power_well_desc wcl_power_wells_main[] = {
 		.ops = &hsw_power_well_ops,
 		.irq_pipe_mask = BIT(PIPE_C),
 		.has_fuses = true,
-	}, {
+	},
+};
+
+static const struct i915_power_well_desc wcl_power_wells_aux[] = {
+	{
 		.instances = &I915_PW_INSTANCES(
 			I915_PW("AUX_A", &icl_pwdoms_aux_a, .xelpdp.aux_ch = AUX_CH_A),
 			I915_PW("AUX_B", &icl_pwdoms_aux_b, .xelpdp.aux_ch = AUX_CH_B),
@@ -1768,6 +1769,7 @@ static const struct i915_power_well_desc_list wcl_power_wells[] = {
 	I915_PW_DESCRIPTORS(xe3lpd_power_wells_dcoff),
 	I915_PW_DESCRIPTORS(wcl_power_wells_main),
 	I915_PW_DESCRIPTORS(xe2lpd_power_wells_pica),
+	I915_PW_DESCRIPTORS(wcl_power_wells_aux),
 };
 
 static void init_power_well_domains(const struct i915_power_well_instance *inst,

drivers/gpu/drm/i915/display/intel_display_power_well.c

@@ -1864,18 +1864,36 @@ static void xelpdp_aux_power_well_enable(struct intel_display *display,
 	 * expected to just wait a fixed 600us after raising the request
 	 * bit.
 	 */
-	usleep_range(600, 1200);
+	if (DISPLAY_VER(display) >= 35) {
+		if (intel_de_wait_for_set(display, XELPDP_DP_AUX_CH_CTL(display, aux_ch),
+					  XELPDP_DP_AUX_CH_CTL_POWER_STATUS, 2))
+			drm_warn(display->drm,
+				 "Timeout waiting for PHY %c AUX channel power to be up\n",
+				 phy_name(phy));
+	} else {
+		usleep_range(600, 1200);
+	}
 }
 
 static void xelpdp_aux_power_well_disable(struct intel_display *display,
 					  struct i915_power_well *power_well)
 {
 	enum aux_ch aux_ch = i915_power_well_instance(power_well)->xelpdp.aux_ch;
+	enum phy phy = icl_aux_pw_to_phy(display, power_well);
 
 	intel_de_rmw(display, XELPDP_DP_AUX_CH_CTL(display, aux_ch),
 		     XELPDP_DP_AUX_CH_CTL_POWER_REQUEST,
 		     0);
-	usleep_range(10, 30);
+
+	if (DISPLAY_VER(display) >= 35) {
+		if (intel_de_wait_for_clear(display, XELPDP_DP_AUX_CH_CTL(display, aux_ch),
+					    XELPDP_DP_AUX_CH_CTL_POWER_STATUS, 1))
+			drm_warn(display->drm,
+				 "Timeout waiting for PHY %c AUX channel to powerdown\n",
+				 phy_name(phy));
+	} else {
+		usleep_range(10, 30);
+	}
 }
 
 static bool xelpdp_aux_power_well_enabled(struct intel_display *display,

drivers/gpu/drm/i915/display/intel_display_rpm.c

@@ -1,69 +1,62 @@
 // SPDX-License-Identifier: MIT
 /* Copyright © 2025 Intel Corporation */
 
-#include "i915_drv.h"
+#include <drm/intel/display_parent_interface.h>
+
 #include "intel_display_core.h"
 #include "intel_display_rpm.h"
-#include "intel_runtime_pm.h"
-
-static struct intel_runtime_pm *display_to_rpm(struct intel_display *display)
-{
-	struct drm_i915_private *i915 = to_i915(display->drm);
-
-	return &i915->runtime_pm;
-}
 
 struct ref_tracker *intel_display_rpm_get_raw(struct intel_display *display)
 {
-	return intel_runtime_pm_get_raw(display_to_rpm(display));
+	return display->parent->rpm->get_raw(display->drm);
 }
 
 void intel_display_rpm_put_raw(struct intel_display *display, struct ref_tracker *wakeref)
 {
-	intel_runtime_pm_put_raw(display_to_rpm(display), wakeref);
+	display->parent->rpm->put_raw(display->drm, wakeref);
 }
 
 struct ref_tracker *intel_display_rpm_get(struct intel_display *display)
 {
-	return intel_runtime_pm_get(display_to_rpm(display));
+	return display->parent->rpm->get(display->drm);
 }
 
 struct ref_tracker *intel_display_rpm_get_if_in_use(struct intel_display *display)
 {
-	return intel_runtime_pm_get_if_in_use(display_to_rpm(display));
+	return display->parent->rpm->get_if_in_use(display->drm);
 }
 
 struct ref_tracker *intel_display_rpm_get_noresume(struct intel_display *display)
 {
-	return intel_runtime_pm_get_noresume(display_to_rpm(display));
+	return display->parent->rpm->get_noresume(display->drm);
 }
 
 void intel_display_rpm_put(struct intel_display *display, struct ref_tracker *wakeref)
 {
-	intel_runtime_pm_put(display_to_rpm(display), wakeref);
+	display->parent->rpm->put(display->drm, wakeref);
 }
 
 void intel_display_rpm_put_unchecked(struct intel_display *display)
 {
-	intel_runtime_pm_put_unchecked(display_to_rpm(display));
+	display->parent->rpm->put_unchecked(display->drm);
 }
 
 bool intel_display_rpm_suspended(struct intel_display *display)
 {
-	return intel_runtime_pm_suspended(display_to_rpm(display));
+	return display->parent->rpm->suspended(display->drm);
 }
 
 void assert_display_rpm_held(struct intel_display *display)
 {
-	assert_rpm_wakelock_held(display_to_rpm(display));
+	display->parent->rpm->assert_held(display->drm);
 }
 
 void intel_display_rpm_assert_block(struct intel_display *display)
 {
-	disable_rpm_wakeref_asserts(display_to_rpm(display));
+	display->parent->rpm->assert_block(display->drm);
 }
 
 void intel_display_rpm_assert_unblock(struct intel_display *display)
 {
-	enable_rpm_wakeref_asserts(display_to_rpm(display));
+	display->parent->rpm->assert_unblock(display->drm);
 }

drivers/gpu/drm/i915/display/intel_display_types.h

@@ -551,7 +551,16 @@ struct intel_connector {
 		u8 fec_capability;
 
 		u8 dsc_hblank_expansion_quirk:1;
+		u8 dsc_throughput_quirk:1;
 		u8 dsc_decompression_enabled:1;
+
+		struct {
+			struct {
+				int rgb_yuv444;
+				int yuv422_420;
+			} overall_throughput;
+			int max_line_width;
+		} dsc_branch_caps;
 	} dp;
 
 	struct {
@@ -946,6 +955,26 @@ struct intel_csc_matrix {
 	u16 postoff[3];
 };
 
+enum intel_panel_replay_dsc_support {
+	INTEL_DP_PANEL_REPLAY_DSC_NOT_SUPPORTED,
+	INTEL_DP_PANEL_REPLAY_DSC_FULL_FRAME_ONLY,
+	INTEL_DP_PANEL_REPLAY_DSC_SELECTIVE_UPDATE,
+};
+
+struct scaler_filter_coeff {
+	u16 sign;
+	u16 exp;
+	u16 mantissa;
+};
+
+struct intel_casf {
+	#define SCALER_FILTER_NUM_TAPS 7
+	struct scaler_filter_coeff coeff[SCALER_FILTER_NUM_TAPS];
+	u8 strength;
+	u8 win_size;
+	bool casf_enable;
+};
+
 struct intel_crtc_state {
 	/*
 	 * uapi (drm) state. This is the software state shown to userspace.
@@ -982,6 +1011,7 @@ struct intel_crtc_state {
 		struct drm_property_blob *degamma_lut, *gamma_lut, *ctm;
 		struct drm_display_mode mode, pipe_mode, adjusted_mode;
 		enum drm_scaling_filter scaling_filter;
+		struct intel_casf casf_params;
 	} hw;
 
 	/* actual state of LUTs */
@@ -1124,9 +1154,12 @@ struct intel_crtc_state {
 	bool has_panel_replay;
 	bool wm_level_disabled;
 	bool pkg_c_latency_used;
+	/* Only used for state verification. */
+	enum intel_panel_replay_dsc_support panel_replay_dsc_support;
 	u32 dc3co_exitline;
 	u16 su_y_granularity;
 	u8 active_non_psr_pipes;
+	const char *no_psr_reason;
 
 	/*
 	 * Frequency the dpll for the port should run at. Differs from the
@@ -1183,7 +1216,9 @@ struct intel_crtc_state {
 
 	struct intel_crtc_wm_state wm;
 
-	int min_cdclk[I915_MAX_PLANES];
+	int min_cdclk;
+
+	int plane_min_cdclk[I915_MAX_PLANES];
 
 	/* for packed/planar CbCr */
 	u32 data_rate[I915_MAX_PLANES];
@@ -1268,6 +1303,8 @@ struct intel_crtc_state {
 
 	/* Display Stream compression state */
 	struct {
+		/* Only used for state computation, not read out from the HW. */
+		bool compression_enabled_on_link;
 		bool compression_enable;
 		int num_streams;
 		/* Compressed Bpp in U6.4 format (first 4 bits for fractional part) */
@@ -1341,6 +1378,20 @@ struct intel_crtc_state {
 
 	/* LOBF flag */
 	bool has_lobf;
+
+	/* W2 window or 'set context latency' lines */
+	u16 set_context_latency;
+
+	struct {
+		u8 io_wake_lines;
+		u8 fast_wake_lines;
+
+		/* LNL and beyond */
+		u8 check_entry_lines;
+		u8 aux_less_wake_lines;
+		u8 silence_period_sym_clocks;
+		u8 lfps_half_cycle_num_of_syms;
+	} alpm_state;
 };
 
 enum intel_pipe_crc_source {
@@ -1679,16 +1730,22 @@ struct intel_psr {
 	bool source_panel_replay_support;
 	bool sink_panel_replay_support;
 	bool sink_panel_replay_su_support;
+	enum intel_panel_replay_dsc_support sink_panel_replay_dsc_support;
 	bool panel_replay_enabled;
 	u32 dc3co_exitline;
 	u32 dc3co_exit_delay;
 	struct delayed_work dc3co_work;
 	u8 entry_setup_frames;
 
+	u8 io_wake_lines;
+	u8 fast_wake_lines;
+
 	bool link_ok;
 	bool pkg_c_latency_used;
 
 	u8 active_non_psr_pipes;
+
+	const char *no_psr_reason;
 };
 
 struct intel_dp {
@@ -1844,19 +1901,12 @@ struct intel_dp {
 	bool colorimetry_support;
 
 	struct {
-		u8 io_wake_lines;
-		u8 fast_wake_lines;
 		enum transcoder transcoder;
 		struct mutex lock;
 
-		/* LNL and beyond */
-		u8 check_entry_lines;
-		u8 aux_less_wake_lines;
-		u8 silence_period_sym_clocks;
-		u8 lfps_half_cycle_num_of_syms;
 		bool lobf_disable_debug;
 		bool sink_alpm_error;
-	} alpm_parameters;
+	} alpm;
 
 	u8 alpm_dpcd;
 

drivers/gpu/drm/i915/display/intel_display_utils.c

@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: MIT
+/* Copyright © 2025 Intel Corporation */
+
+#include <linux/device.h>
+
+#include <drm/drm_device.h>
+
+#ifdef CONFIG_X86
+#include <asm/hypervisor.h>
+#endif
+
+#include "intel_display_core.h"
+#include "intel_display_utils.h"
+
+bool intel_display_run_as_guest(struct intel_display *display)
+{
+#if IS_ENABLED(CONFIG_X86)
+	return !hypervisor_is_type(X86_HYPER_NATIVE);
+#else
+	/* Not supported yet */
+	return false;
+#endif
+}
+
+bool intel_display_vtd_active(struct intel_display *display)
+{
+	if (device_iommu_mapped(display->drm->dev))
+		return true;
+
+	/* Running as a guest, we assume the host is enforcing VT'd */
+	return intel_display_run_as_guest(display);
+}

drivers/gpu/drm/i915/display/intel_display_utils.h

@@ -0,0 +1,31 @@
+/* SPDX-License-Identifier: MIT */
+/* Copyright © 2025 Intel Corporation */
+
+#ifndef __INTEL_DISPLAY_UTILS__
+#define __INTEL_DISPLAY_UTILS__
+
+#include <linux/bug.h>
+#include <linux/types.h>
+
+struct intel_display;
+
+#ifndef MISSING_CASE
+#define MISSING_CASE(x) WARN(1, "Missing case (%s == %ld)\n", \
+			     __stringify(x), (long)(x))
+#endif
+
+#ifndef fetch_and_zero
+#define fetch_and_zero(ptr) ({						\
+	typeof(*ptr) __T = *(ptr);					\
+	*(ptr) = (typeof(*ptr))0;					\
+	__T;								\
+})
+#endif
+
+#define KHz(x) (1000 * (x))
+#define MHz(x) KHz(1000 * (x))
+
+bool intel_display_run_as_guest(struct intel_display *display);
+bool intel_display_vtd_active(struct intel_display *display);
+
+#endif /* __INTEL_DISPLAY_UTILS__ */

drivers/gpu/drm/i915/display/intel_display_wa.c

@@ -67,6 +67,8 @@ bool __intel_display_wa(struct intel_display *display, enum intel_display_wa wa,
 		return intel_display_needs_wa_16025573575(display);
 	case INTEL_DISPLAY_WA_14011503117:
 		return DISPLAY_VER(display) == 13;
+	case INTEL_DISPLAY_WA_22014263786:
+		return IS_DISPLAY_VERx100(display, 1100, 1400);
 	default:
 		drm_WARN(display->drm, 1, "Missing Wa number: %s\n", name);
 		break;

drivers/gpu/drm/i915/display/intel_display_wa.h

@@ -25,6 +25,7 @@ enum intel_display_wa {
 	INTEL_DISPLAY_WA_16023588340,
 	INTEL_DISPLAY_WA_16025573575,
 	INTEL_DISPLAY_WA_14011503117,
+	INTEL_DISPLAY_WA_22014263786,
 };
 
 bool __intel_display_wa(struct intel_display *display, enum intel_display_wa wa, const char *name);

drivers/gpu/drm/i915/display/intel_dmc.c

@@ -30,13 +30,13 @@
 #include <drm/drm_print.h>
 
 #include "i915_reg.h"
-#include "i915_utils.h"
 #include "intel_crtc.h"
 #include "intel_de.h"
 #include "intel_display_power_well.h"
 #include "intel_display_regs.h"
 #include "intel_display_rpm.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dmc.h"
 #include "intel_dmc_regs.h"
 #include "intel_flipq.h"
@@ -127,6 +127,9 @@ static bool dmc_firmware_param_disabled(struct intel_display *display)
 #define DISPLAY_VER13_DMC_MAX_FW_SIZE	0x20000
 #define DISPLAY_VER12_DMC_MAX_FW_SIZE	ICL_DMC_MAX_FW_SIZE
 
+#define XE3LPD_3002_DMC_PATH		DMC_PATH(xe3lpd_3002)
+MODULE_FIRMWARE(XE3LPD_3002_DMC_PATH);
+
 #define XE3LPD_DMC_PATH			DMC_PATH(xe3lpd)
 MODULE_FIRMWARE(XE3LPD_DMC_PATH);
 
@@ -183,9 +186,10 @@ static const char *dmc_firmware_default(struct intel_display *display, u32 *size
 {
 	const char *fw_path = NULL;
 	u32 max_fw_size = 0;
-
+	if (DISPLAY_VERx100(display) == 3002) {
-	if (DISPLAY_VERx100(display) == 3002 ||
+		fw_path = XE3LPD_3002_DMC_PATH;
-	    DISPLAY_VERx100(display) == 3000) {
+		max_fw_size = XE2LPD_DMC_MAX_FW_SIZE;
+	} else if (DISPLAY_VERx100(display) == 3000) {
 		fw_path = XE3LPD_DMC_PATH;
 		max_fw_size = XE2LPD_DMC_MAX_FW_SIZE;
 	} else if (DISPLAY_VERx100(display) == 2000) {
@@ -509,10 +513,16 @@ static u32 pipedmc_interrupt_mask(struct intel_display *display)
 		PIPEDMC_ATS_FAULT;
 }
 
-static u32 dmc_evt_ctl_disable(void)
+static u32 dmc_evt_ctl_disable(u32 dmc_evt_ctl)
 {
-	return REG_FIELD_PREP(DMC_EVT_CTL_TYPE_MASK,
+	/*
-			      DMC_EVT_CTL_TYPE_EDGE_0_1) |
+	 * DMC_EVT_CTL_ENABLE cannot be cleared once set. Always
+	 * configure it based on the original event definition to
+	 * avoid mismatches in assert_dmc_loaded().
+	 */
+	return (dmc_evt_ctl & DMC_EVT_CTL_ENABLE) |
+		REG_FIELD_PREP(DMC_EVT_CTL_TYPE_MASK,
+			       DMC_EVT_CTL_TYPE_EDGE_0_1) |
 		REG_FIELD_PREP(DMC_EVT_CTL_EVENT_ID_MASK,
 			       DMC_EVENT_FALSE);
 }
@@ -546,6 +556,51 @@ static bool is_event_handler(struct intel_display *display,
 		REG_FIELD_GET(DMC_EVT_CTL_EVENT_ID_MASK, data) == event_id;
 }
 
+static bool fixup_dmc_evt(struct intel_display *display,
+			  enum intel_dmc_id dmc_id,
+			  i915_reg_t reg_ctl, u32 *data_ctl,
+			  i915_reg_t reg_htp, u32 *data_htp)
+{
+	if (!is_dmc_evt_ctl_reg(display, dmc_id, reg_ctl))
+		return false;
+
+	if (!is_dmc_evt_htp_reg(display, dmc_id, reg_htp))
+		return false;
+
+	/* make sure reg_ctl and reg_htp are for the same event */
+	if (i915_mmio_reg_offset(reg_ctl) - i915_mmio_reg_offset(DMC_EVT_CTL(display, dmc_id, 0)) !=
+	    i915_mmio_reg_offset(reg_htp) - i915_mmio_reg_offset(DMC_EVT_HTP(display, dmc_id, 0)))
+		return false;
+
+	/*
+	 * On ADL-S the HRR event handler is not restored after DC6.
+	 * Clear it to zero from the beginning to avoid mismatches later.
+	 */
+	if (display->platform.alderlake_s && dmc_id == DMC_FW_MAIN &&
+	    is_event_handler(display, dmc_id, MAINDMC_EVENT_VBLANK_A, reg_ctl, *data_ctl)) {
+		*data_ctl = 0;
+		*data_htp = 0;
+		return true;
+	}
+
+	/*
+	 * TGL/ADL-S DMC firmware incorrectly uses the undelayed vblank
+	 * event for the HRR handler, when it should be using the delayed
+	 * vblank event instead. Fixed firmware was never released
+	 * so the Windows driver just hacks around it by overriding
+	 * the event ID. Do the same.
+	 */
+	if ((display->platform.tigerlake || display->platform.alderlake_s) &&
+	    is_event_handler(display, dmc_id, MAINDMC_EVENT_VBLANK_A, reg_ctl, *data_ctl)) {
+		*data_ctl &= ~DMC_EVT_CTL_EVENT_ID_MASK;
+		*data_ctl |=  REG_FIELD_PREP(DMC_EVT_CTL_EVENT_ID_MASK,
+					     MAINDMC_EVENT_VBLANK_DELAYED_A);
+		return true;
+	}
+
+	return false;
+}
+
 static bool disable_dmc_evt(struct intel_display *display,
 			    enum intel_dmc_id dmc_id,
 			    i915_reg_t reg, u32 data)
@@ -564,7 +619,7 @@ static bool disable_dmc_evt(struct intel_display *display,
 
 	/* also disable the HRR event on the main DMC on TGL/ADLS */
 	if ((display->platform.tigerlake || display->platform.alderlake_s) &&
-	    is_event_handler(display, dmc_id, MAINDMC_EVENT_VBLANK_A, reg, data))
+	    is_event_handler(display, dmc_id, MAINDMC_EVENT_VBLANK_DELAYED_A, reg, data))
 		return true;
 
 	return false;
@@ -577,7 +632,7 @@ static u32 dmc_mmiodata(struct intel_display *display,
 	if (disable_dmc_evt(display, dmc_id,
 			    dmc->dmc_info[dmc_id].mmioaddr[i],
 			    dmc->dmc_info[dmc_id].mmiodata[i]))
-		return dmc_evt_ctl_disable();
+		return dmc_evt_ctl_disable(dmc->dmc_info[dmc_id].mmiodata[i]);
 	else
 		return dmc->dmc_info[dmc_id].mmiodata[i];
 }
@@ -636,12 +691,6 @@ static void assert_dmc_loaded(struct intel_display *display,
 		found = intel_de_read(display, reg);
 		expected = dmc_mmiodata(display, dmc, dmc_id, i);
 
-		/* once set DMC_EVT_CTL_ENABLE can't be cleared :/ */
-		if (is_dmc_evt_ctl_reg(display, dmc_id, reg)) {
-			found &= ~DMC_EVT_CTL_ENABLE;
-			expected &= ~DMC_EVT_CTL_ENABLE;
-		}
-
 		drm_WARN(display->drm, found != expected,
 			 "DMC %d mmio[%d]/0x%x incorrect (expected 0x%x, current 0x%x)\n",
 			 dmc_id, i, i915_mmio_reg_offset(reg), expected, found);
@@ -794,7 +843,7 @@ static void dmc_configure_event(struct intel_display *display,
 		if (!is_event_handler(display, dmc_id, event_id, reg, data))
 			continue;
 
-		intel_de_write(display, reg, enable ? data : dmc_evt_ctl_disable());
+		intel_de_write(display, reg, enable ? data : dmc_evt_ctl_disable(data));
 		num_handlers++;
 	}
 
@@ -1064,9 +1113,32 @@ static u32 parse_dmc_fw_header(struct intel_dmc *dmc,
 	for (i = 0; i < mmio_count; i++) {
 		dmc_info->mmioaddr[i] = _MMIO(mmioaddr[i]);
 		dmc_info->mmiodata[i] = mmiodata[i];
+	}
 
+	for (i = 0; i < mmio_count - 1; i++) {
+		u32 orig_mmiodata[2] = {
+			dmc_info->mmiodata[i],
+			dmc_info->mmiodata[i+1],
+		};
+
+		if (!fixup_dmc_evt(display, dmc_id,
+				   dmc_info->mmioaddr[i], &dmc_info->mmiodata[i],
+				   dmc_info->mmioaddr[i+1], &dmc_info->mmiodata[i+1]))
+			continue;
+
+		drm_dbg_kms(display->drm,
+			    " mmio[%d]: 0x%x = 0x%x->0x%x (EVT_CTL)\n",
+			    i, i915_mmio_reg_offset(dmc_info->mmioaddr[i]),
+			    orig_mmiodata[0], dmc_info->mmiodata[i]);
+		drm_dbg_kms(display->drm,
+			    " mmio[%d]: 0x%x = 0x%x->0x%x (EVT_HTP)\n",
+			    i+1, i915_mmio_reg_offset(dmc_info->mmioaddr[i+1]),
+			    orig_mmiodata[1], dmc_info->mmiodata[i+1]);
+	}
+
+	for (i = 0; i < mmio_count; i++) {
 		drm_dbg_kms(display->drm, " mmio[%d]: 0x%x = 0x%x%s%s\n",
-			    i, mmioaddr[i], mmiodata[i],
+			    i, i915_mmio_reg_offset(dmc_info->mmioaddr[i]), dmc_info->mmiodata[i],
 			    is_dmc_evt_ctl_reg(display, dmc_id, dmc_info->mmioaddr[i]) ? " (EVT_CTL)" :
 			    is_dmc_evt_htp_reg(display, dmc_id, dmc_info->mmioaddr[i]) ? " (EVT_HTP)" : "",
 			    disable_dmc_evt(display, dmc_id, dmc_info->mmioaddr[i],
@@ -1141,7 +1213,7 @@ parse_dmc_fw_package(struct intel_dmc *dmc,
 	}
 
 	num_entries = package_header->num_entries;
-	if (WARN_ON(package_header->num_entries > max_entries))
+	if (WARN_ON(num_entries > max_entries))
 		num_entries = max_entries;
 
 	fw_info = (const struct intel_fw_info *)

drivers/gpu/drm/i915/display/intel_dp.c

@@ -51,7 +51,6 @@
 #include <drm/drm_probe_helper.h>
 
 #include "g4x_dp.h"
-#include "i915_utils.h"
 #include "intel_alpm.h"
 #include "intel_atomic.h"
 #include "intel_audio.h"
@@ -64,6 +63,8 @@
 #include "intel_ddi.h"
 #include "intel_de.h"
 #include "intel_display_driver.h"
+#include "intel_display_jiffies.h"
+#include "intel_display_utils.h"
 #include "intel_display_regs.h"
 #include "intel_display_rpm.h"
 #include "intel_display_types.h"
@@ -93,14 +94,10 @@
 #include "intel_psr.h"
 #include "intel_quirks.h"
 #include "intel_tc.h"
+#include "intel_vblank.h"
 #include "intel_vdsc.h"
 #include "intel_vrr.h"
 
-/* DP DSC throughput values used for slice count calculations KPixels/s */
-#define DP_DSC_PEAK_PIXEL_RATE			2720000
-#define DP_DSC_MAX_ENC_THROUGHPUT_0		340000
-#define DP_DSC_MAX_ENC_THROUGHPUT_1		400000
-
 /* Max DSC line buffer depth supported by HW. */
 #define INTEL_DP_DSC_MAX_LINE_BUF_DEPTH		13
 
@@ -1018,13 +1015,43 @@ u8 intel_dp_dsc_get_slice_count(const struct intel_connector *connector,
 	struct intel_display *display = to_intel_display(connector);
 	u8 min_slice_count, i;
 	int max_slice_width;
+	int tp_rgb_yuv444;
+	int tp_yuv422_420;
 
-	if (mode_clock <= DP_DSC_PEAK_PIXEL_RATE)
+	/*
-		min_slice_count = DIV_ROUND_UP(mode_clock,
+	 * TODO: Use the throughput value specific to the actual RGB/YUV
-					       DP_DSC_MAX_ENC_THROUGHPUT_0);
+	 * format of the output.
-	else
+	 * The RGB/YUV444 throughput value should be always either equal
-		min_slice_count = DIV_ROUND_UP(mode_clock,
+	 * or smaller than the YUV422/420 value, but let's not depend on
-					       DP_DSC_MAX_ENC_THROUGHPUT_1);
+	 * this assumption.
+	 */
+	if (mode_clock > max(connector->dp.dsc_branch_caps.overall_throughput.rgb_yuv444,
+			     connector->dp.dsc_branch_caps.overall_throughput.yuv422_420))
+		return 0;
+
+	if (mode_hdisplay > connector->dp.dsc_branch_caps.max_line_width)
+		return 0;
+
+	/*
+	 * TODO: Pass the total pixel rate of all the streams transferred to
+	 * an MST tiled display, calculate the total slice count for all tiles
+	 * from this and the per-tile slice count from the total slice count.
+	 */
+	tp_rgb_yuv444 = drm_dp_dsc_sink_max_slice_throughput(connector->dp.dsc_dpcd,
+							     mode_clock, true);
+	tp_yuv422_420 = drm_dp_dsc_sink_max_slice_throughput(connector->dp.dsc_dpcd,
+							     mode_clock, false);
+
+	/*
+	 * TODO: Use the throughput value specific to the actual RGB/YUV
+	 * format of the output.
+	 * For now use the smaller of these, which is ok, potentially
+	 * resulting in a higher than required minimum slice count.
+	 * The RGB/YUV444 throughput value should be always either equal
+	 * or smaller than the YUV422/420 value, but let's not depend on
+	 * this assumption.
+	 */
+	min_slice_count = DIV_ROUND_UP(mode_clock, min(tp_rgb_yuv444, tp_yuv422_420));
 
 	/*
 	 * Due to some DSC engine BW limitations, we need to enable second
@@ -2340,24 +2367,26 @@ static int intel_edp_dsc_compute_pipe_bpp(struct intel_dp *intel_dp,
 	return 0;
 }
 
-static void intel_dp_fec_compute_config(struct intel_dp *intel_dp,
+/*
-					struct intel_crtc_state *crtc_state)
+ * Return whether FEC must be enabled for 8b10b SST or MST links. On 128b132b
+ * links FEC is always enabled implicitly by the HW, so this function returns
+ * false for that case.
+ */
+bool intel_dp_needs_8b10b_fec(const struct intel_crtc_state *crtc_state,
+			      bool dsc_enabled_on_crtc)
 {
-	if (crtc_state->fec_enable)
+	if (intel_dp_is_uhbr(crtc_state))
-		return;
+		return false;
 
 	/*
 	 * Though eDP v1.5 supports FEC with DSC, unlike DP, it is optional.
 	 * Since, FEC is a bandwidth overhead, continue to not enable it for
 	 * eDP. Until, there is a good reason to do so.
 	 */
-	if (intel_dp_is_edp(intel_dp))
+	if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP))
-		return;
+		return false;
 
-	if (intel_dp_is_uhbr(crtc_state))
+	return dsc_enabled_on_crtc || intel_dsc_enabled_on_link(crtc_state);
-		return;
-
-	crtc_state->fec_enable = true;
 }
 
 int intel_dp_dsc_compute_config(struct intel_dp *intel_dp,
@@ -2375,7 +2404,11 @@ int intel_dp_dsc_compute_config(struct intel_dp *intel_dp,
 	bool is_mst = intel_crtc_has_type(pipe_config, INTEL_OUTPUT_DP_MST);
 	int ret;
 
-	intel_dp_fec_compute_config(intel_dp, pipe_config);
+	/*
+	 * FIXME: set the FEC enabled state once pipe_config->port_clock is
+	 * already known, so the UHBR/non-UHBR mode can be determined.
+	 */
+	pipe_config->fec_enable = intel_dp_needs_8b10b_fec(pipe_config, true);
 
 	if (!intel_dp_dsc_supports_format(connector, pipe_config->output_format))
 		return -EINVAL;
@@ -2450,7 +2483,8 @@ int intel_dp_dsc_compute_config(struct intel_dp *intel_dp,
 		return ret;
 	}
 
-	pipe_config->dsc.compression_enable = true;
+	intel_dsc_enable_on_crtc(pipe_config);
+
 	drm_dbg_kms(display->drm, "DP DSC computed with Input Bpp = %d "
 		    "Compressed Bpp = " FXP_Q4_FMT " Slice Count = %d\n",
 		    pipe_config->pipe_bpp,
@@ -2460,6 +2494,40 @@ int intel_dp_dsc_compute_config(struct intel_dp *intel_dp,
 	return 0;
 }
 
+static int
+dsc_throughput_quirk_max_bpp_x16(const struct intel_connector *connector,
+				 const struct intel_crtc_state *crtc_state)
+{
+	const struct drm_display_mode *adjusted_mode =
+		&crtc_state->hw.adjusted_mode;
+
+	if (!connector->dp.dsc_throughput_quirk)
+		return INT_MAX;
+
+	/*
+	 * Synaptics Panamera branch devices have a problem decompressing a
+	 * stream with a compressed link-bpp higher than 12, if the pixel
+	 * clock is higher than ~50 % of the maximum overall throughput
+	 * reported by the branch device. Work around this by limiting the
+	 * maximum link bpp for such pixel clocks.
+	 *
+	 * TODO: Use the throughput value specific to the actual RGB/YUV
+	 * format of the output, after determining the pixel clock limit for
+	 * YUV modes. For now use the smaller of the throughput values, which
+	 * may result in limiting the link-bpp value already at a lower than
+	 * required mode clock in case of native YUV422/420 output formats.
+	 * The RGB/YUV444 throughput value should be always either equal or
+	 * smaller than the YUV422/420 value, but let's not depend on this
+	 * assumption.
+	 */
+	if (adjusted_mode->crtc_clock <
+	    min(connector->dp.dsc_branch_caps.overall_throughput.rgb_yuv444,
+		connector->dp.dsc_branch_caps.overall_throughput.yuv422_420) / 2)
+		return INT_MAX;
+
+	return fxp_q4_from_int(12);
+}
+
 /*
  * Calculate the output link min, max bpp values in limits based on the pipe bpp
  * range, crtc_state and dsc mode. Return true on success.
@@ -2491,6 +2559,7 @@ intel_dp_compute_config_link_bpp_limits(struct intel_dp *intel_dp,
 	} else {
 		int dsc_src_min_bpp, dsc_sink_min_bpp, dsc_min_bpp;
 		int dsc_src_max_bpp, dsc_sink_max_bpp, dsc_max_bpp;
+		int throughput_max_bpp_x16;
 
 		dsc_src_min_bpp = intel_dp_dsc_min_src_compressed_bpp();
 		dsc_sink_min_bpp = intel_dp_dsc_sink_min_compressed_bpp(crtc_state);
@@ -2505,6 +2574,19 @@ intel_dp_compute_config_link_bpp_limits(struct intel_dp *intel_dp,
 			      min(dsc_sink_max_bpp, dsc_src_max_bpp) : dsc_src_max_bpp;
 
 		max_link_bpp_x16 = min(max_link_bpp_x16, fxp_q4_from_int(dsc_max_bpp));
+
+		throughput_max_bpp_x16 = dsc_throughput_quirk_max_bpp_x16(connector, crtc_state);
+		throughput_max_bpp_x16 = clamp(throughput_max_bpp_x16,
+					       limits->link.min_bpp_x16, max_link_bpp_x16);
+		if (throughput_max_bpp_x16 < max_link_bpp_x16) {
+			max_link_bpp_x16 = throughput_max_bpp_x16;
+
+			drm_dbg_kms(display->drm,
+				    "[CRTC:%d:%s][CONNECTOR:%d:%s] Decreasing link max bpp to " FXP_Q4_FMT " due to DSC throughput quirk\n",
+				    crtc->base.base.id, crtc->base.name,
+				    connector->base.base.id, connector->base.name,
+				    FXP_Q4_ARGS(max_link_bpp_x16));
+		}
 	}
 
 	limits->link.max_bpp_x16 = max_link_bpp_x16;
@@ -4169,7 +4251,36 @@ static void intel_dp_read_dsc_dpcd(struct drm_dp_aux *aux,
 		    dsc_dpcd);
 }
 
-void intel_dp_get_dsc_sink_cap(u8 dpcd_rev, struct intel_connector *connector)
+static void init_dsc_overall_throughput_limits(struct intel_connector *connector, bool is_branch)
+{
+	u8 branch_caps[DP_DSC_BRANCH_CAP_SIZE];
+	int line_width;
+
+	connector->dp.dsc_branch_caps.overall_throughput.rgb_yuv444 = INT_MAX;
+	connector->dp.dsc_branch_caps.overall_throughput.yuv422_420 = INT_MAX;
+	connector->dp.dsc_branch_caps.max_line_width = INT_MAX;
+
+	if (!is_branch)
+		return;
+
+	if (drm_dp_dpcd_read_data(connector->dp.dsc_decompression_aux,
+				  DP_DSC_BRANCH_OVERALL_THROUGHPUT_0, branch_caps,
+				  sizeof(branch_caps)) != 0)
+		return;
+
+	connector->dp.dsc_branch_caps.overall_throughput.rgb_yuv444 =
+		drm_dp_dsc_branch_max_overall_throughput(branch_caps, true) ? : INT_MAX;
+
+	connector->dp.dsc_branch_caps.overall_throughput.yuv422_420 =
+		drm_dp_dsc_branch_max_overall_throughput(branch_caps, false) ? : INT_MAX;
+
+	line_width = drm_dp_dsc_branch_max_line_width(branch_caps);
+	connector->dp.dsc_branch_caps.max_line_width = line_width > 0 ? line_width : INT_MAX;
+}
+
+void intel_dp_get_dsc_sink_cap(u8 dpcd_rev,
+			       const struct drm_dp_desc *desc, bool is_branch,
+			       struct intel_connector *connector)
 {
 	struct intel_display *display = to_intel_display(connector);
 
@@ -4182,6 +4293,9 @@ void intel_dp_get_dsc_sink_cap(u8 dpcd_rev, struct intel_connector *connector)
 	/* Clear fec_capable to avoid using stale values */
 	connector->dp.fec_capability = 0;
 
+	memset(&connector->dp.dsc_branch_caps, 0, sizeof(connector->dp.dsc_branch_caps));
+	connector->dp.dsc_throughput_quirk = false;
+
 	if (dpcd_rev < DP_DPCD_REV_14)
 		return;
 
@@ -4196,6 +4310,19 @@ void intel_dp_get_dsc_sink_cap(u8 dpcd_rev, struct intel_connector *connector)
 
 	drm_dbg_kms(display->drm, "FEC CAPABILITY: %x\n",
 		    connector->dp.fec_capability);
+
+	if (!(connector->dp.dsc_dpcd[0] & DP_DSC_DECOMPRESSION_IS_SUPPORTED))
+		return;
+
+	init_dsc_overall_throughput_limits(connector, is_branch);
+
+	/*
+	 * TODO: Move the HW rev check as well to the DRM core quirk table if
+	 * that's required after clarifying the list of affected devices.
+	 */
+	if (drm_dp_has_quirk(desc, DP_DPCD_QUIRK_DSC_THROUGHPUT_BPP_LIMIT) &&
+	    desc->ident.hw_rev == 0x10)
+		connector->dp.dsc_throughput_quirk = true;
 }
 
 static void intel_edp_get_dsc_sink_cap(u8 edp_dpcd_rev, struct intel_connector *connector)
@@ -4204,6 +4331,9 @@ static void intel_edp_get_dsc_sink_cap(u8 edp_dpcd_rev, struct intel_connector *
 		return;
 
 	intel_dp_read_dsc_dpcd(connector->dp.dsc_decompression_aux, connector->dp.dsc_dpcd);
+
+	if (connector->dp.dsc_dpcd[0] & DP_DSC_DECOMPRESSION_IS_SUPPORTED)
+		init_dsc_overall_throughput_limits(connector, false);
 }
 
 static void
@@ -4220,6 +4350,7 @@ intel_dp_detect_dsc_caps(struct intel_dp *intel_dp, struct intel_connector *conn
 					   connector);
 	else
 		intel_dp_get_dsc_sink_cap(intel_dp->dpcd[DP_DPCD_REV],
+					  &intel_dp->desc, drm_dp_is_branch(intel_dp->dpcd),
 					  connector);
 }
 
@@ -5553,7 +5684,7 @@ intel_dp_short_pulse(struct intel_dp *intel_dp)
 
 	if (intel_alpm_get_error(intel_dp)) {
 		intel_alpm_disable(intel_dp);
-		intel_dp->alpm_parameters.sink_alpm_error = true;
+		intel_dp->alpm.sink_alpm_error = true;
 	}
 
 	if (intel_dp_test_short_pulse(intel_dp))
@@ -5921,6 +6052,8 @@ intel_dp_detect(struct drm_connector *_connector,
 		memset(connector->dp.dsc_dpcd, 0, sizeof(connector->dp.dsc_dpcd));
 		intel_dp->psr.sink_panel_replay_support = false;
 		intel_dp->psr.sink_panel_replay_su_support = false;
+		intel_dp->psr.sink_panel_replay_dsc_support =
+			INTEL_DP_PANEL_REPLAY_DSC_NOT_SUPPORTED;
 
 		intel_dp_mst_disconnect(intel_dp);
 
@@ -6857,3 +6990,81 @@ void intel_dp_mst_resume(struct intel_display *display)
 		}
 	}
 }
+
+static
+int intel_dp_sdp_compute_config_late(struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+	int guardband = intel_crtc_vblank_length(crtc_state);
+	int min_sdp_guardband = intel_dp_sdp_min_guardband(crtc_state, false);
+
+	if (guardband < min_sdp_guardband) {
+		drm_dbg_kms(display->drm, "guardband %d < min sdp guardband %d\n",
+			    guardband, min_sdp_guardband);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+int intel_dp_compute_config_late(struct intel_encoder *encoder,
+				 struct intel_crtc_state *crtc_state,
+				 struct drm_connector_state *conn_state)
+{
+	struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+	int ret;
+
+	intel_psr_compute_config_late(intel_dp, crtc_state);
+
+	ret = intel_dp_sdp_compute_config_late(crtc_state);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static
+int intel_dp_get_lines_for_sdp(const struct intel_crtc_state *crtc_state, u32 type)
+{
+	switch (type) {
+	case DP_SDP_VSC_EXT_VESA:
+	case DP_SDP_VSC_EXT_CEA:
+		return 10;
+	case HDMI_PACKET_TYPE_GAMUT_METADATA:
+		return 8;
+	case DP_SDP_PPS:
+		return 7;
+	case DP_SDP_ADAPTIVE_SYNC:
+		return crtc_state->vrr.vsync_start + 1;
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+int intel_dp_sdp_min_guardband(const struct intel_crtc_state *crtc_state,
+			       bool assume_all_enabled)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+	int sdp_guardband = 0;
+
+	if (assume_all_enabled ||
+	    crtc_state->infoframes.enable &
+	    intel_hdmi_infoframe_enable(HDMI_PACKET_TYPE_GAMUT_METADATA))
+		sdp_guardband = max(sdp_guardband,
+				    intel_dp_get_lines_for_sdp(crtc_state,
+							       HDMI_PACKET_TYPE_GAMUT_METADATA));
+
+	if (assume_all_enabled ||
+	    crtc_state->dsc.compression_enable)
+		sdp_guardband = max(sdp_guardband,
+				    intel_dp_get_lines_for_sdp(crtc_state, DP_SDP_PPS));
+
+	if ((assume_all_enabled && HAS_AS_SDP(display)) ||
+	    crtc_state->infoframes.enable & intel_hdmi_infoframe_enable(DP_SDP_ADAPTIVE_SYNC))
+		sdp_guardband = max(sdp_guardband,
+				    intel_dp_get_lines_for_sdp(crtc_state, DP_SDP_ADAPTIVE_SYNC));
+
+	return sdp_guardband;
+}

drivers/gpu/drm/i915/display/intel_dp.h

@@ -12,6 +12,7 @@ enum intel_output_format;
 enum pipe;
 enum port;
 struct drm_connector_state;
+struct drm_dp_desc;
 struct drm_dp_vsc_sdp;
 struct drm_encoder;
 struct drm_modeset_acquire_ctx;
@@ -72,6 +73,8 @@ void intel_dp_encoder_flush_work(struct drm_encoder *encoder);
 int intel_dp_compute_config(struct intel_encoder *encoder,
 			    struct intel_crtc_state *pipe_config,
 			    struct drm_connector_state *conn_state);
+bool intel_dp_needs_8b10b_fec(const struct intel_crtc_state *crtc_state,
+			      bool dsc_enabled_on_crtc);
 int intel_dp_dsc_compute_config(struct intel_dp *intel_dp,
 				struct intel_crtc_state *pipe_config,
 				struct drm_connector_state *conn_state,
@@ -199,7 +202,9 @@ bool intel_dp_compute_config_limits(struct intel_dp *intel_dp,
 				    bool dsc,
 				    struct link_config_limits *limits);
 
-void intel_dp_get_dsc_sink_cap(u8 dpcd_rev, struct intel_connector *connector);
+void intel_dp_get_dsc_sink_cap(u8 dpcd_rev,
+			       const struct drm_dp_desc *desc, bool is_branch,
+			       struct intel_connector *connector);
 bool intel_dp_has_gamut_metadata_dip(struct intel_encoder *encoder);
 
 bool intel_dp_link_params_valid(struct intel_dp *intel_dp, int link_rate,
@@ -215,5 +220,10 @@ int intel_dp_compute_min_hblank(struct intel_crtc_state *crtc_state,
 int intel_dp_dsc_bpp_step_x16(const struct intel_connector *connector);
 void intel_dp_dpcd_set_probe(struct intel_dp *intel_dp, bool force_on_external);
 bool intel_dp_in_hdr_mode(const struct drm_connector_state *conn_state);
+int intel_dp_compute_config_late(struct intel_encoder *encoder,
+				 struct intel_crtc_state *crtc_state,
+				 struct drm_connector_state *conn_state);
+int intel_dp_sdp_min_guardband(const struct intel_crtc_state *crtc_state,
+			       bool assume_all_enabled);
 
 #endif /* __INTEL_DP_H__ */

drivers/gpu/drm/i915/display/intel_dp_aux.c

@@ -5,9 +5,9 @@
 
 #include <drm/drm_print.h>
 
-#include "i915_utils.h"
 #include "intel_de.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dp.h"
 #include "intel_dp_aux.h"
 #include "intel_dp_aux_regs.h"

drivers/gpu/drm/i915/display/intel_dp_link_training.c

@@ -27,9 +27,10 @@
 #include <drm/display/drm_dp_helper.h>
 #include <drm/drm_print.h>
 
-#include "i915_utils.h"
 #include "intel_display_core.h"
+#include "intel_display_jiffies.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dp.h"
 #include "intel_dp_link_training.h"
 #include "intel_encoder.h"

drivers/gpu/drm/i915/display/intel_dp_mst.c

@@ -33,7 +33,6 @@
 #include <drm/drm_print.h>
 #include <drm/drm_probe_helper.h>
 
-#include "i915_utils.h"
 #include "intel_atomic.h"
 #include "intel_audio.h"
 #include "intel_connector.h"
@@ -43,6 +42,7 @@
 #include "intel_display_driver.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dp.h"
 #include "intel_dp_hdcp.h"
 #include "intel_dp_link_training.h"
@@ -293,12 +293,22 @@ int intel_dp_mtp_tu_compute_config(struct intel_dp *intel_dp,
 		mst_stream_update_slots(crtc_state, mst_state);
 	}
 
-	if (dsc) {
+	/*
-		if (!intel_dp_supports_fec(intel_dp, connector, crtc_state))
+	 * NOTE: The following must reset crtc_state->fec_enable for UHBR/DSC
-			return -EINVAL;
+	 * after it was set by intel_dp_dsc_compute_config() ->
-
+	 * intel_dp_needs_8b10b_fec().
-		crtc_state->fec_enable = !intel_dp_is_uhbr(crtc_state);
+	 */
-	}
+	crtc_state->fec_enable = intel_dp_needs_8b10b_fec(crtc_state, dsc);
+	/*
+	 * If FEC gets enabled only because of another compressed stream, FEC
+	 * may not be supported for this uncompressed stream on the whole link
+	 * path until the sink DPRX. In this case a downstream branch device
+	 * will disable FEC for the uncompressed stream as expected and so the
+	 * FEC support doesn't need to be checked for this uncompressed stream.
+	 */
+	if (crtc_state->fec_enable && dsc &&
+	    !intel_dp_supports_fec(intel_dp, connector, crtc_state))
+		return -EINVAL;
 
 	max_dpt_bpp_x16 = fxp_q4_from_int(intel_dp_mst_max_dpt_bpp(crtc_state, dsc));
 	if (max_dpt_bpp_x16 && max_bpp_x16 > max_dpt_bpp_x16) {
@@ -811,14 +821,14 @@ static u8 get_pipes_downstream_of_mst_port(struct intel_atomic_state *state,
 	return mask;
 }
 
-static int intel_dp_mst_check_fec_change(struct intel_atomic_state *state,
+static int intel_dp_mst_check_dsc_change(struct intel_atomic_state *state,
 					 struct drm_dp_mst_topology_mgr *mst_mgr,
 					 struct intel_link_bw_limits *limits)
 {
 	struct intel_display *display = to_intel_display(state);
 	struct intel_crtc *crtc;
 	u8 mst_pipe_mask;
-	u8 fec_pipe_mask = 0;
+	u8 dsc_pipe_mask = 0;
 	int ret;
 
 	mst_pipe_mask = get_pipes_downstream_of_mst_port(state, mst_mgr, NULL);
@@ -831,16 +841,16 @@ static int intel_dp_mst_check_fec_change(struct intel_atomic_state *state,
 		if (drm_WARN_ON(display->drm, !crtc_state))
 			return -EINVAL;
 
-		if (crtc_state->fec_enable)
+		if (intel_dsc_enabled_on_link(crtc_state))
-			fec_pipe_mask |= BIT(crtc->pipe);
+			dsc_pipe_mask |= BIT(crtc->pipe);
 	}
 
-	if (!fec_pipe_mask || mst_pipe_mask == fec_pipe_mask)
+	if (!dsc_pipe_mask || mst_pipe_mask == dsc_pipe_mask)
 		return 0;
 
-	limits->force_fec_pipes |= mst_pipe_mask;
+	limits->link_dsc_pipes |= mst_pipe_mask;
 
-	ret = intel_modeset_pipes_in_mask_early(state, "MST FEC",
+	ret = intel_modeset_pipes_in_mask_early(state, "MST DSC",
 						mst_pipe_mask);
 
 	return ret ? : -EAGAIN;
@@ -894,7 +904,7 @@ int intel_dp_mst_atomic_check_link(struct intel_atomic_state *state,
 	int i;
 
 	for_each_new_mst_mgr_in_state(&state->base, mgr, mst_state, i) {
-		ret = intel_dp_mst_check_fec_change(state, mgr, limits);
+		ret = intel_dp_mst_check_dsc_change(state, mgr, limits);
 		if (ret)
 			return ret;
 
@@ -1658,6 +1668,7 @@ intel_dp_mst_read_decompression_port_dsc_caps(struct intel_dp *intel_dp,
 					      struct intel_connector *connector)
 {
 	u8 dpcd_caps[DP_RECEIVER_CAP_SIZE];
+	struct drm_dp_desc desc;
 
 	if (!connector->dp.dsc_decompression_aux)
 		return;
@@ -1665,7 +1676,13 @@ intel_dp_mst_read_decompression_port_dsc_caps(struct intel_dp *intel_dp,
 	if (drm_dp_read_dpcd_caps(connector->dp.dsc_decompression_aux, dpcd_caps) < 0)
 		return;
 
-	intel_dp_get_dsc_sink_cap(dpcd_caps[DP_DPCD_REV], connector);
+	if (drm_dp_read_desc(connector->dp.dsc_decompression_aux, &desc,
+			     drm_dp_is_branch(dpcd_caps)) < 0)
+		return;
+
+	intel_dp_get_dsc_sink_cap(dpcd_caps[DP_DPCD_REV],
+				  &desc, drm_dp_is_branch(dpcd_caps),
+				  connector);
 }
 
 static bool detect_dsc_hblank_expansion_quirk(const struct intel_connector *connector)

drivers/gpu/drm/i915/display/intel_dpio_phy.c

@@ -24,13 +24,13 @@
 #include <drm/drm_print.h>
 
 #include "bxt_dpio_phy_regs.h"
-#include "i915_utils.h"
 #include "intel_ddi.h"
 #include "intel_ddi_buf_trans.h"
 #include "intel_de.h"
 #include "intel_display_power_well.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dp.h"
 #include "intel_dpio_phy.h"
 #include "vlv_dpio_phy_regs.h"

drivers/gpu/drm/i915/display/intel_dpll.c

@@ -17,6 +17,7 @@
 #include "intel_display_types.h"
 #include "intel_dpio_phy.h"
 #include "intel_dpll.h"
+#include "intel_lt_phy.h"
 #include "intel_lvds.h"
 #include "intel_lvds_regs.h"
 #include "intel_panel.h"
@@ -1232,6 +1233,28 @@ static int mtl_crtc_compute_clock(struct intel_atomic_state *state,
 	return 0;
 }
 
+static int xe3plpd_crtc_compute_clock(struct intel_atomic_state *state,
+				      struct intel_crtc *crtc)
+{
+	struct intel_crtc_state *crtc_state =
+		intel_atomic_get_new_crtc_state(state, crtc);
+	struct intel_encoder *encoder =
+		intel_get_crtc_new_encoder(state, crtc_state);
+	int ret;
+
+	ret = intel_lt_phy_pll_calc_state(crtc_state, encoder);
+	if (ret)
+		return ret;
+
+	/* TODO: Do the readback via intel_compute_shared_dplls() */
+	crtc_state->port_clock =
+			intel_lt_phy_calc_port_clock(encoder, crtc_state);
+
+	crtc_state->hw.adjusted_mode.crtc_clock = intel_crtc_dotclock(crtc_state);
+
+	return 0;
+}
+
 static int ilk_fb_cb_factor(const struct intel_crtc_state *crtc_state)
 {
 	struct intel_display *display = to_intel_display(crtc_state);
@@ -1691,6 +1714,10 @@ static int i8xx_crtc_compute_clock(struct intel_atomic_state *state,
 	return 0;
 }
 
+static const struct intel_dpll_global_funcs xe3plpd_dpll_funcs = {
+	.crtc_compute_clock = xe3plpd_crtc_compute_clock,
+};
+
 static const struct intel_dpll_global_funcs mtl_dpll_funcs = {
 	.crtc_compute_clock = mtl_crtc_compute_clock,
 };
@@ -1789,7 +1816,9 @@ int intel_dpll_crtc_get_dpll(struct intel_atomic_state *state,
 void
 intel_dpll_init_clock_hook(struct intel_display *display)
 {
-	if (DISPLAY_VER(display) >= 14)
+	if (HAS_LT_PHY(display))
+		display->funcs.dpll = &xe3plpd_dpll_funcs;
+	else if (DISPLAY_VER(display) >= 14)
 		display->funcs.dpll = &mtl_dpll_funcs;
 	else if (display->platform.dg2)
 		display->funcs.dpll = &dg2_dpll_funcs;

drivers/gpu/drm/i915/display/intel_dpll_mgr.c

@@ -27,11 +27,11 @@
 #include <drm/drm_print.h>
 
 #include "bxt_dpio_phy_regs.h"
-#include "i915_utils.h"
 #include "intel_cx0_phy.h"
 #include "intel_de.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dkl_phy.h"
 #include "intel_dkl_phy_regs.h"
 #include "intel_dpio_phy.h"

drivers/gpu/drm/i915/display/intel_dpll_mgr.h

@@ -267,6 +267,16 @@ struct intel_cx0pll_state {
 	bool tbt_mode;
 };
 
+struct intel_lt_phy_pll_state {
+	u32 clock; /* in kHz */
+	u8 addr_msb[13];
+	u8 addr_lsb[13];
+	u8 data[13][4];
+	u8 config[3];
+	bool ssc_enabled;
+	bool tbt_mode;
+};
+
 struct intel_dpll_hw_state {
 	union {
 		struct i9xx_dpll_hw_state i9xx;
@@ -276,6 +286,7 @@ struct intel_dpll_hw_state {
 		struct icl_dpll_hw_state icl;
 		struct intel_mpllb_state mpllb;
 		struct intel_cx0pll_state cx0pll;
+		struct intel_lt_phy_pll_state ltpll;
 	};
 };
 

drivers/gpu/drm/i915/display/intel_dsb.c

@@ -115,24 +115,6 @@ static bool pre_commit_is_vrr_active(struct intel_atomic_state *state,
 	return old_crtc_state->vrr.enable && !intel_crtc_vrr_disabling(state, crtc);
 }
 
-static int dsb_vblank_delay(struct intel_atomic_state *state,
-			    struct intel_crtc *crtc)
-{
-	const struct intel_crtc_state *crtc_state =
-		intel_pre_commit_crtc_state(state, crtc);
-
-	if (pre_commit_is_vrr_active(state, crtc))
-		/*
-		 * When the push is sent during vblank it will trigger
-		 * on the next scanline, hence we have up to one extra
-		 * scanline until the delayed vblank occurs after
-		 * TRANS_PUSH has been written.
-		 */
-		return intel_vrr_vblank_delay(crtc_state) + 1;
-	else
-		return intel_mode_vblank_delay(&crtc_state->hw.adjusted_mode);
-}
-
 static int dsb_vtotal(struct intel_atomic_state *state,
 		      struct intel_crtc *crtc)
 {
@@ -723,7 +705,7 @@ void intel_dsb_vblank_evade(struct intel_atomic_state *state,
 		intel_dsb_emit_wait_dsl(dsb, DSB_OPCODE_WAIT_DSL_OUT, 0, 0);
 
 	if (pre_commit_is_vrr_active(state, crtc)) {
-		int vblank_delay = intel_vrr_vblank_delay(crtc_state);
+		int vblank_delay = crtc_state->set_context_latency;
 
 		end = intel_vrr_vmin_vblank_start(crtc_state);
 		start = end - vblank_delay - latency;
@@ -815,16 +797,43 @@ void intel_dsb_chain(struct intel_atomic_state *state,
 			 wait_for_vblank ? DSB_WAIT_FOR_VBLANK : 0);
 }
 
-void intel_dsb_wait_vblank_delay(struct intel_atomic_state *state,
+void intel_dsb_wait_for_delayed_vblank(struct intel_atomic_state *state,
-				 struct intel_dsb *dsb)
+				       struct intel_dsb *dsb)
 {
 	struct intel_crtc *crtc = dsb->crtc;
 	const struct intel_crtc_state *crtc_state =
 		intel_pre_commit_crtc_state(state, crtc);
-	int usecs = intel_scanlines_to_usecs(&crtc_state->hw.adjusted_mode,
+	const struct drm_display_mode *adjusted_mode =
-					     dsb_vblank_delay(state, crtc));
+		&crtc_state->hw.adjusted_mode;
+	int wait_scanlines;
 
-	intel_dsb_wait_usec(dsb, usecs);
+	if (pre_commit_is_vrr_active(state, crtc)) {
+		/*
+		 * If the push happened before the vmin decision boundary
+		 * we don't know how far we are from the undelayed vblank.
+		 * Wait until we're past the vmin safe window, at which
+		 * point we're SCL lines away from the delayed vblank.
+		 *
+		 * If the push happened after the vmin decision boundary
+		 * the hardware itself guarantees that we're SCL lines
+		 * away from the delayed vblank, and we won't be inside
+		 * the vmin safe window so this extra wait does nothing.
+		 */
+		intel_dsb_wait_scanline_out(state, dsb,
+					    intel_vrr_safe_window_start(crtc_state),
+					    intel_vrr_vmin_safe_window_end(crtc_state));
+		/*
+		 * When the push is sent during vblank it will trigger
+		 * on the next scanline, hence we have up to one extra
+		 * scanline until the delayed vblank occurs after
+		 * TRANS_PUSH has been written.
+		 */
+		wait_scanlines = crtc_state->set_context_latency + 1;
+	} else {
+		wait_scanlines = intel_mode_vblank_delay(adjusted_mode);
+	}
+
+	intel_dsb_wait_usec(dsb, intel_scanlines_to_usecs(adjusted_mode, wait_scanlines));
 }
 
 /**

drivers/gpu/drm/i915/display/intel_dsb.h

@@ -48,8 +48,8 @@ void intel_dsb_nonpost_end(struct intel_dsb *dsb);
 void intel_dsb_interrupt(struct intel_dsb *dsb);
 void intel_dsb_wait_usec(struct intel_dsb *dsb, int count);
 void intel_dsb_wait_vblanks(struct intel_dsb *dsb, int count);
-void intel_dsb_wait_vblank_delay(struct intel_atomic_state *state,
+void intel_dsb_wait_for_delayed_vblank(struct intel_atomic_state *state,
-				 struct intel_dsb *dsb);
+				       struct intel_dsb *dsb);
 void intel_dsb_wait_scanline_in(struct intel_atomic_state *state,
 				struct intel_dsb *dsb,
 				int lower, int upper);

drivers/gpu/drm/i915/display/intel_dsi_vbt.c

@@ -38,10 +38,10 @@
 #include <drm/drm_print.h>
 #include <video/mipi_display.h>
 
-#include "i915_utils.h"
 #include "intel_de.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dsi.h"
 #include "intel_dsi_vbt.h"
 #include "intel_gmbus_regs.h"
@@ -106,8 +106,8 @@ static const u8 *mipi_exec_send_packet(struct intel_dsi *intel_dsi,
 	u8 type, flags, seq_port;
 	u16 len;
 	enum port port;
-
+	ssize_t ret;
-	drm_dbg_kms(display->drm, "\n");
+	bool hs_mode;
 
 	flags = *data++;
 	type = *data++;
@@ -129,45 +129,53 @@ static const u8 *mipi_exec_send_packet(struct intel_dsi *intel_dsi,
 		goto out;
 	}
 
-	if ((flags >> MIPI_TRANSFER_MODE_SHIFT) & 1)
+	hs_mode = (flags >> MIPI_TRANSFER_MODE_SHIFT) & 1;
+	if (hs_mode)
 		dsi_device->mode_flags &= ~MIPI_DSI_MODE_LPM;
 	else
 		dsi_device->mode_flags |= MIPI_DSI_MODE_LPM;
 
 	dsi_device->channel = (flags >> MIPI_VIRTUAL_CHANNEL_SHIFT) & 3;
 
+	drm_dbg_kms(display->drm, "DSI packet: Port %c (seq %u), Flags 0x%02x, VC %u, %s, Type 0x%02x, Length %u, Data %*ph\n",
+		    port_name(port), seq_port, flags, dsi_device->channel,
+		    hs_mode ? "HS" : "LP", type, len, (int)len, data);
+
 	switch (type) {
 	case MIPI_DSI_GENERIC_SHORT_WRITE_0_PARAM:
-		mipi_dsi_generic_write(dsi_device, NULL, 0);
+		ret = mipi_dsi_generic_write(dsi_device, NULL, 0);
 		break;
 	case MIPI_DSI_GENERIC_SHORT_WRITE_1_PARAM:
-		mipi_dsi_generic_write(dsi_device, data, 1);
+		ret = mipi_dsi_generic_write(dsi_device, data, 1);
 		break;
 	case MIPI_DSI_GENERIC_SHORT_WRITE_2_PARAM:
-		mipi_dsi_generic_write(dsi_device, data, 2);
+		ret = mipi_dsi_generic_write(dsi_device, data, 2);
 		break;
 	case MIPI_DSI_GENERIC_READ_REQUEST_0_PARAM:
 	case MIPI_DSI_GENERIC_READ_REQUEST_1_PARAM:
 	case MIPI_DSI_GENERIC_READ_REQUEST_2_PARAM:
-		drm_dbg_kms(display->drm, "Generic Read not yet implemented or used\n");
+		ret = -EOPNOTSUPP;
 		break;
 	case MIPI_DSI_GENERIC_LONG_WRITE:
-		mipi_dsi_generic_write(dsi_device, data, len);
+		ret = mipi_dsi_generic_write(dsi_device, data, len);
 		break;
 	case MIPI_DSI_DCS_SHORT_WRITE:
-		mipi_dsi_dcs_write_buffer(dsi_device, data, 1);
+		ret = mipi_dsi_dcs_write_buffer(dsi_device, data, 1);
 		break;
 	case MIPI_DSI_DCS_SHORT_WRITE_PARAM:
-		mipi_dsi_dcs_write_buffer(dsi_device, data, 2);
+		ret = mipi_dsi_dcs_write_buffer(dsi_device, data, 2);
 		break;
 	case MIPI_DSI_DCS_READ:
-		drm_dbg_kms(display->drm, "DCS Read not yet implemented or used\n");
+		ret = -EOPNOTSUPP;
 		break;
 	case MIPI_DSI_DCS_LONG_WRITE:
-		mipi_dsi_dcs_write_buffer(dsi_device, data, len);
+		ret = mipi_dsi_dcs_write_buffer(dsi_device, data, len);
 		break;
 	}
 
+	if (ret < 0)
+		drm_err(display->drm, "DSI send packet failed with %pe\n", ERR_PTR(ret));
+
 	if (DISPLAY_VER(display) < 11)
 		vlv_dsi_wait_for_fifo_empty(intel_dsi, port);
 

drivers/gpu/drm/i915/display/intel_dvo.c

@@ -34,12 +34,12 @@
 #include <drm/drm_print.h>
 #include <drm/drm_probe_helper.h>
 
-#include "i915_utils.h"
 #include "intel_connector.h"
 #include "intel_de.h"
 #include "intel_display_driver.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dvo.h"
 #include "intel_dvo_dev.h"
 #include "intel_dvo_regs.h"

drivers/gpu/drm/i915/display/intel_fb.c

@@ -10,12 +10,11 @@
 #include <drm/drm_gem.h>
 #include <drm/drm_modeset_helper.h>
 
-#include "i915_drv.h"
-#include "i915_utils.h"
 #include "intel_bo.h"
 #include "intel_display.h"
 #include "intel_display_core.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dpt.h"
 #include "intel_fb.h"
 #include "intel_fb_bo.h"
@@ -547,8 +546,6 @@ static bool plane_has_modifier(struct intel_display *display,
 			       u8 plane_caps,
 			       const struct intel_modifier_desc *md)
 {
-	struct drm_i915_private *i915 = to_i915(display->drm);
-
 	if (!IS_DISPLAY_VER(display, md->display_ver.from, md->display_ver.until))
 		return false;
 
@@ -560,15 +557,15 @@ static bool plane_has_modifier(struct intel_display *display,
 	 * where supported.
 	 */
 	if (intel_fb_is_ccs_modifier(md->modifier) &&
-	    HAS_FLAT_CCS(i915) != !md->ccs.packed_aux_planes)
+	    HAS_AUX_CCS(display) != !!md->ccs.packed_aux_planes)
 		return false;
 
 	if (md->modifier == I915_FORMAT_MOD_4_TILED_BMG_CCS &&
-	    (GRAPHICS_VER(i915) < 20 || !display->platform.dgfx))
+	    (DISPLAY_VER(display) < 14 || !display->platform.dgfx))
 		return false;
 
 	if (md->modifier == I915_FORMAT_MOD_4_TILED_LNL_CCS &&
-	    (GRAPHICS_VER(i915) < 20 || display->platform.dgfx))
+	    (DISPLAY_VER(display) < 20 || display->platform.dgfx))
 		return false;
 
 	return true;
@@ -777,7 +774,6 @@ unsigned int
 intel_tile_width_bytes(const struct drm_framebuffer *fb, int color_plane)
 {
 	struct intel_display *display = to_intel_display(fb->dev);
-	struct drm_i915_private *i915 = to_i915(display->drm);
 	unsigned int cpp = fb->format->cpp[color_plane];
 
 	switch (fb->modifier) {
@@ -814,7 +810,7 @@ intel_tile_width_bytes(const struct drm_framebuffer *fb, int color_plane)
 			return 64;
 		fallthrough;
 	case I915_FORMAT_MOD_Y_TILED:
-		if (DISPLAY_VER(display) == 2 || HAS_128_BYTE_Y_TILING(i915))
+		if (HAS_128B_Y_TILING(display))
 			return 128;
 		else
 			return 512;
@@ -2117,6 +2113,7 @@ static void intel_user_framebuffer_destroy(struct drm_framebuffer *fb)
 
 	intel_frontbuffer_put(intel_fb->frontbuffer);
 
+	kfree(intel_fb->panic);
 	kfree(intel_fb);
 }
 
@@ -2215,18 +2212,24 @@ int intel_framebuffer_init(struct intel_framebuffer *intel_fb,
 	struct intel_display *display = to_intel_display(obj->dev);
 	struct drm_framebuffer *fb = &intel_fb->base;
 	u32 max_stride;
-	int ret = -EINVAL;
+	int ret;
 	int i;
 
+	intel_fb->panic = intel_panic_alloc();
+	if (!intel_fb->panic)
+		return -ENOMEM;
+
 	/*
 	 * intel_frontbuffer_get() must be done before
 	 * intel_fb_bo_framebuffer_init() to avoid set_tiling vs. addfb race.
 	 */
 	intel_fb->frontbuffer = intel_frontbuffer_get(obj);
-	if (!intel_fb->frontbuffer)
+	if (!intel_fb->frontbuffer) {
-		return -ENOMEM;
+		ret = -ENOMEM;
+		goto err_free_panic;
+	}
 
-	ret = intel_fb_bo_framebuffer_init(fb, obj, mode_cmd);
+	ret = intel_fb_bo_framebuffer_init(obj, mode_cmd);
 	if (ret)
 		goto err_frontbuffer_put;
 
@@ -2323,6 +2326,9 @@ err_bo_framebuffer_fini:
 	intel_fb_bo_framebuffer_fini(obj);
 err_frontbuffer_put:
 	intel_frontbuffer_put(intel_fb->frontbuffer);
+err_free_panic:
+	kfree(intel_fb->panic);
+
 	return ret;
 }
 
@@ -2349,20 +2355,11 @@ intel_user_framebuffer_create(struct drm_device *dev,
 struct intel_framebuffer *intel_framebuffer_alloc(void)
 {
 	struct intel_framebuffer *intel_fb;
-	struct intel_panic *panic;
 
 	intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL);
 	if (!intel_fb)
 		return NULL;
 
-	panic = intel_panic_alloc();
-	if (!panic) {
-		kfree(intel_fb);
-		return NULL;
-	}
-
-	intel_fb->panic = panic;
-
 	return intel_fb;
 }
 

drivers/gpu/drm/i915/display/intel_fb_bo.c

@@ -18,8 +18,7 @@ void intel_fb_bo_framebuffer_fini(struct drm_gem_object *obj)
 	/* Nothing to do for i915 */
 }
 
-int intel_fb_bo_framebuffer_init(struct drm_framebuffer *fb,
+int intel_fb_bo_framebuffer_init(struct drm_gem_object *_obj,
-				 struct drm_gem_object *_obj,
 				 struct drm_mode_fb_cmd2 *mode_cmd)
 {
 	struct drm_i915_gem_object *obj = to_intel_bo(_obj);

drivers/gpu/drm/i915/display/intel_fb_bo.h

@@ -14,8 +14,7 @@ struct drm_mode_fb_cmd2;
 
 void intel_fb_bo_framebuffer_fini(struct drm_gem_object *obj);
 
-int intel_fb_bo_framebuffer_init(struct drm_framebuffer *fb,
+int intel_fb_bo_framebuffer_init(struct drm_gem_object *obj,
-				 struct drm_gem_object *obj,
 				 struct drm_mode_fb_cmd2 *mode_cmd);
 
 struct drm_gem_object *

drivers/gpu/drm/i915/display/intel_fbc.c

@@ -49,17 +49,16 @@
 #include "gt/intel_gt_types.h"
 
 #include "i915_drv.h"
-#include "i915_utils.h"
 #include "i915_vgpu.h"
 #include "i915_vma.h"
 #include "i9xx_plane_regs.h"
-#include "intel_cdclk.h"
 #include "intel_de.h"
 #include "intel_display_device.h"
 #include "intel_display_regs.h"
 #include "intel_display_rpm.h"
 #include "intel_display_trace.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_display_wa.h"
 #include "intel_fbc.h"
 #include "intel_fbc_regs.h"
@@ -102,7 +101,8 @@ struct intel_fbc {
 	struct mutex lock;
 	unsigned int busy_bits;
 
-	struct i915_stolen_fb compressed_fb, compressed_llb;
+	struct intel_stolen_node *compressed_fb;
+	struct intel_stolen_node *compressed_llb;
 
 	enum intel_fbc_id id;
 
@@ -141,15 +141,18 @@ static unsigned int intel_fbc_plane_stride(const struct intel_plane_state *plane
 	return stride;
 }
 
-static unsigned int intel_fbc_cfb_cpp(void)
+static unsigned int intel_fbc_cfb_cpp(const struct intel_plane_state *plane_state)
 {
-	return 4; /* FBC always 4 bytes per pixel */
+	const struct drm_framebuffer *fb = plane_state->hw.fb;
+	unsigned int cpp = fb->format->cpp[0];
+
+	return max(cpp, 4);
 }
 
 /* plane stride based cfb stride in bytes, assuming 1:1 compression limit */
 static unsigned int intel_fbc_plane_cfb_stride(const struct intel_plane_state *plane_state)
 {
-	unsigned int cpp = intel_fbc_cfb_cpp();
+	unsigned int cpp = intel_fbc_cfb_cpp(plane_state);
 
 	return intel_fbc_plane_stride(plane_state) * cpp;
 }
@@ -203,7 +206,7 @@ static unsigned int intel_fbc_cfb_stride(const struct intel_plane_state *plane_s
 	struct intel_display *display = to_intel_display(plane_state->uapi.plane->dev);
 	unsigned int stride = intel_fbc_plane_cfb_stride(plane_state);
 	unsigned int width = drm_rect_width(&plane_state->uapi.src) >> 16;
-	unsigned int cpp = intel_fbc_cfb_cpp();
+	unsigned int cpp = intel_fbc_cfb_cpp(plane_state);
 
 	return _intel_fbc_cfb_stride(display, cpp, width, stride);
 }
@@ -376,20 +379,19 @@ static void i8xx_fbc_nuke(struct intel_fbc *fbc)
 static void i8xx_fbc_program_cfb(struct intel_fbc *fbc)
 {
 	struct intel_display *display = fbc->display;
-	struct drm_i915_private *i915 = to_i915(display->drm);
 
 	drm_WARN_ON(display->drm,
-		    range_end_overflows_t(u64, i915_gem_stolen_area_address(i915),
+		    range_end_overflows_t(u64, i915_gem_stolen_area_address(display->drm),
-					  i915_gem_stolen_node_offset(&fbc->compressed_fb),
+					  i915_gem_stolen_node_offset(fbc->compressed_fb),
 					  U32_MAX));
 	drm_WARN_ON(display->drm,
-		    range_end_overflows_t(u64, i915_gem_stolen_area_address(i915),
+		    range_end_overflows_t(u64, i915_gem_stolen_area_address(display->drm),
-					  i915_gem_stolen_node_offset(&fbc->compressed_llb),
+					  i915_gem_stolen_node_offset(fbc->compressed_llb),
 					  U32_MAX));
 	intel_de_write(display, FBC_CFB_BASE,
-		       i915_gem_stolen_node_address(i915, &fbc->compressed_fb));
+		       i915_gem_stolen_node_address(fbc->compressed_fb));
 	intel_de_write(display, FBC_LL_BASE,
-		       i915_gem_stolen_node_address(i915, &fbc->compressed_llb));
+		       i915_gem_stolen_node_address(fbc->compressed_llb));
 }
 
 static const struct intel_fbc_funcs i8xx_fbc_funcs = {
@@ -497,7 +499,7 @@ static void g4x_fbc_program_cfb(struct intel_fbc *fbc)
 	struct intel_display *display = fbc->display;
 
 	intel_de_write(display, DPFC_CB_BASE,
-		       i915_gem_stolen_node_offset(&fbc->compressed_fb));
+		       i915_gem_stolen_node_offset(fbc->compressed_fb));
 }
 
 static const struct intel_fbc_funcs g4x_fbc_funcs = {
@@ -566,7 +568,7 @@ static void ilk_fbc_program_cfb(struct intel_fbc *fbc)
 	struct intel_display *display = fbc->display;
 
 	intel_de_write(display, ILK_DPFC_CB_BASE(fbc->id),
-		       i915_gem_stolen_node_offset(&fbc->compressed_fb));
+		       i915_gem_stolen_node_offset(fbc->compressed_fb));
 }
 
 static const struct intel_fbc_funcs ilk_fbc_funcs = {
@@ -797,7 +799,6 @@ static u64 intel_fbc_cfb_base_max(struct intel_display *display)
 
 static u64 intel_fbc_stolen_end(struct intel_display *display)
 {
-	struct drm_i915_private __maybe_unused *i915 = to_i915(display->drm);
 	u64 end;
 
 	/* The FBC hardware for BDW/SKL doesn't have access to the stolen
@@ -806,7 +807,7 @@ static u64 intel_fbc_stolen_end(struct intel_display *display)
 	 * underruns, even if that range is not reserved by the BIOS. */
 	if (display->platform.broadwell ||
 	    (DISPLAY_VER(display) == 9 && !display->platform.broxton))
-		end = i915_gem_stolen_area_size(i915) - 8 * 1024 * 1024;
+		end = i915_gem_stolen_area_size(display->drm) - 8 * 1024 * 1024;
 	else
 		end = U64_MAX;
 
@@ -835,20 +836,19 @@ static int find_compression_limit(struct intel_fbc *fbc,
 				  unsigned int size, int min_limit)
 {
 	struct intel_display *display = fbc->display;
-	struct drm_i915_private *i915 = to_i915(display->drm);
 	u64 end = intel_fbc_stolen_end(display);
 	int ret, limit = min_limit;
 
 	size /= limit;
 
 	/* Try to over-allocate to reduce reallocations and fragmentation. */
-	ret = i915_gem_stolen_insert_node_in_range(i915, &fbc->compressed_fb,
+	ret = i915_gem_stolen_insert_node_in_range(fbc->compressed_fb,
 						   size <<= 1, 4096, 0, end);
 	if (ret == 0)
 		return limit;
 
 	for (; limit <= intel_fbc_max_limit(display); limit <<= 1) {
-		ret = i915_gem_stolen_insert_node_in_range(i915, &fbc->compressed_fb,
+		ret = i915_gem_stolen_insert_node_in_range(fbc->compressed_fb,
 							   size >>= 1, 4096, 0, end);
 		if (ret == 0)
 			return limit;
@@ -861,17 +861,15 @@ static int intel_fbc_alloc_cfb(struct intel_fbc *fbc,
 			       unsigned int size, int min_limit)
 {
 	struct intel_display *display = fbc->display;
-	struct drm_i915_private *i915 = to_i915(display->drm);
 	int ret;
 
 	drm_WARN_ON(display->drm,
-		    i915_gem_stolen_node_allocated(&fbc->compressed_fb));
+		    i915_gem_stolen_node_allocated(fbc->compressed_fb));
 	drm_WARN_ON(display->drm,
-		    i915_gem_stolen_node_allocated(&fbc->compressed_llb));
+		    i915_gem_stolen_node_allocated(fbc->compressed_llb));
 
 	if (DISPLAY_VER(display) < 5 && !display->platform.g4x) {
-		ret = i915_gem_stolen_insert_node(i915, &fbc->compressed_llb,
+		ret = i915_gem_stolen_insert_node(fbc->compressed_llb, 4096, 4096);
-						  4096, 4096);
 		if (ret)
 			goto err;
 	}
@@ -887,14 +885,14 @@ static int intel_fbc_alloc_cfb(struct intel_fbc *fbc,
 
 	drm_dbg_kms(display->drm,
 		    "reserved %llu bytes of contiguous stolen space for FBC, limit: %d\n",
-		    i915_gem_stolen_node_size(&fbc->compressed_fb), fbc->limit);
+		    i915_gem_stolen_node_size(fbc->compressed_fb), fbc->limit);
 	return 0;
 
 err_llb:
-	if (i915_gem_stolen_node_allocated(&fbc->compressed_llb))
+	if (i915_gem_stolen_node_allocated(fbc->compressed_llb))
-		i915_gem_stolen_remove_node(i915, &fbc->compressed_llb);
+		i915_gem_stolen_remove_node(fbc->compressed_llb);
 err:
-	if (i915_gem_stolen_initialized(i915))
+	if (i915_gem_stolen_initialized(display->drm))
 		drm_info_once(display->drm,
 			      "not enough stolen space for compressed buffer (need %d more bytes), disabling. Hint: you may be able to increase stolen memory size in the BIOS to avoid this.\n", size);
 	return -ENOSPC;
@@ -932,9 +930,12 @@ static void intel_fbc_program_workarounds(struct intel_fbc *fbc)
 	if (IS_DISPLAY_VER(display, 11, 12))
 		intel_de_rmw(display, ILK_DPFC_CHICKEN(fbc->id),
 			     0, DPFC_CHICKEN_COMP_DUMMY_PIXEL);
-
+	/*
-	/* Wa_22014263786:icl,jsl,tgl,dg1,rkl,adls,adlp,mtl */
+	 * Wa_22014263786
-	if (DISPLAY_VER(display) >= 11 && !display->platform.dg2)
+	 * Fixes: Screen flicker with FBC and Package C state enabled
+	 * Workaround: Forced SLB invalidation before start of new frame.
+	 */
+	if (intel_display_wa(display, 22014263786))
 		intel_de_rmw(display, ILK_DPFC_CHICKEN(fbc->id),
 			     0, DPFC_CHICKEN_FORCE_SLB_INVALIDATION);
 
@@ -945,16 +946,13 @@ static void intel_fbc_program_workarounds(struct intel_fbc *fbc)
 
 static void __intel_fbc_cleanup_cfb(struct intel_fbc *fbc)
 {
-	struct intel_display *display = fbc->display;
-	struct drm_i915_private *i915 = to_i915(display->drm);
-
 	if (WARN_ON(intel_fbc_hw_is_active(fbc)))
 		return;
 
-	if (i915_gem_stolen_node_allocated(&fbc->compressed_llb))
+	if (i915_gem_stolen_node_allocated(fbc->compressed_llb))
-		i915_gem_stolen_remove_node(i915, &fbc->compressed_llb);
+		i915_gem_stolen_remove_node(fbc->compressed_llb);
-	if (i915_gem_stolen_node_allocated(&fbc->compressed_fb))
+	if (i915_gem_stolen_node_allocated(fbc->compressed_fb))
-		i915_gem_stolen_remove_node(i915, &fbc->compressed_fb);
+		i915_gem_stolen_remove_node(fbc->compressed_fb);
 }
 
 void intel_fbc_cleanup(struct intel_display *display)
@@ -967,6 +965,9 @@ void intel_fbc_cleanup(struct intel_display *display)
 		__intel_fbc_cleanup_cfb(fbc);
 		mutex_unlock(&fbc->lock);
 
+		i915_gem_stolen_node_free(fbc->compressed_fb);
+		i915_gem_stolen_node_free(fbc->compressed_llb);
+
 		kfree(fbc);
 	}
 }
@@ -1083,11 +1084,57 @@ static bool lnl_fbc_pixel_format_is_valid(const struct intel_plane_state *plane_
 	}
 }
 
+static bool
+xe3p_lpd_fbc_fp16_format_is_valid(const struct intel_plane_state *plane_state)
+{
+	const struct drm_framebuffer *fb = plane_state->hw.fb;
+
+	switch (fb->format->format) {
+	case DRM_FORMAT_ARGB16161616F:
+	case DRM_FORMAT_ABGR16161616F:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static bool xe3p_lpd_fbc_pixel_format_is_valid(const struct intel_plane_state *plane_state)
+{
+	const struct drm_framebuffer *fb = plane_state->hw.fb;
+
+	if (lnl_fbc_pixel_format_is_valid(plane_state))
+		return true;
+
+	if (xe3p_lpd_fbc_fp16_format_is_valid(plane_state))
+		return true;
+
+	switch (fb->format->format) {
+	case DRM_FORMAT_XRGB16161616:
+	case DRM_FORMAT_XBGR16161616:
+	case DRM_FORMAT_ARGB16161616:
+	case DRM_FORMAT_ABGR16161616:
+		return true;
+	default:
+		return false;
+	}
+}
+
+bool
+intel_fbc_is_enable_pixel_normalizer(const struct intel_plane_state *plane_state)
+{
+	struct intel_display *display = to_intel_display(plane_state);
+
+	return DISPLAY_VER(display) >= 35 &&
+	       xe3p_lpd_fbc_fp16_format_is_valid(plane_state);
+}
+
 static bool pixel_format_is_valid(const struct intel_plane_state *plane_state)
 {
 	struct intel_display *display = to_intel_display(plane_state->uapi.plane->dev);
 
-	if (DISPLAY_VER(display) >= 20)
+	if (DISPLAY_VER(display) >= 35)
+		return xe3p_lpd_fbc_pixel_format_is_valid(plane_state);
+	else if (DISPLAY_VER(display) >= 20)
 		return lnl_fbc_pixel_format_is_valid(plane_state);
 	else if (DISPLAY_VER(display) >= 5 || display->platform.g4x)
 		return g4x_fbc_pixel_format_is_valid(plane_state);
@@ -1355,7 +1402,7 @@ static bool intel_fbc_is_cfb_ok(const struct intel_plane_state *plane_state)
 
 	return intel_fbc_min_limit(plane_state) <= fbc->limit &&
 		intel_fbc_cfb_size(plane_state) <= fbc->limit *
-			i915_gem_stolen_node_size(&fbc->compressed_fb);
+			i915_gem_stolen_node_size(fbc->compressed_fb);
 }
 
 static bool intel_fbc_is_ok(const struct intel_plane_state *plane_state)
@@ -1421,6 +1468,18 @@ intel_fbc_prepare_dirty_rect(struct intel_atomic_state *state,
 	}
 }
 
+static int _intel_fbc_min_cdclk(const struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+
+	/* WaFbcExceedCdClockThreshold:hsw,bdw */
+	if (display->platform.haswell || display->platform.broadwell)
+		return DIV_ROUND_UP(crtc_state->pixel_rate * 100, 95);
+
+	/* no FBC specific limits to worry about */
+	return 0;
+}
+
 static int intel_fbc_check_plane(struct intel_atomic_state *state,
 				 struct intel_plane *plane)
 {
@@ -1436,7 +1495,7 @@ static int intel_fbc_check_plane(struct intel_atomic_state *state,
 	if (!fbc)
 		return 0;
 
-	if (!i915_gem_stolen_initialized(i915)) {
+	if (!i915_gem_stolen_initialized(display->drm)) {
 		plane_state->no_fbc_reason = "stolen memory not initialised";
 		return 0;
 	}
@@ -1462,7 +1521,8 @@ static int intel_fbc_check_plane(struct intel_atomic_state *state,
 	}
 
 	/* WaFbcTurnOffFbcWhenHyperVisorIsUsed:skl,bxt */
-	if (i915_vtd_active(i915) && (display->platform.skylake || display->platform.broxton)) {
+	if (intel_display_vtd_active(display) &&
+	    (display->platform.skylake || display->platform.broxton)) {
 		plane_state->no_fbc_reason = "VT-d enabled";
 		return 0;
 	}
@@ -1560,18 +1620,9 @@ static int intel_fbc_check_plane(struct intel_atomic_state *state,
 		return 0;
 	}
 
-	/* WaFbcExceedCdClockThreshold:hsw,bdw */
+	if (_intel_fbc_min_cdclk(crtc_state) > display->cdclk.max_cdclk_freq) {
-	if (display->platform.haswell || display->platform.broadwell) {
+		plane_state->no_fbc_reason = "pixel rate too high";
-		const struct intel_cdclk_state *cdclk_state;
+		return 0;
-
-		cdclk_state = intel_atomic_get_cdclk_state(state);
-		if (IS_ERR(cdclk_state))
-			return PTR_ERR(cdclk_state);
-
-		if (crtc_state->pixel_rate >= intel_cdclk_logical(cdclk_state) * 95 / 100) {
-			plane_state->no_fbc_reason = "pixel rate too high";
-			return 0;
-		}
 	}
 
 	plane_state->no_fbc_reason = NULL;
@@ -1579,6 +1630,27 @@ static int intel_fbc_check_plane(struct intel_atomic_state *state,
 	return 0;
 }
 
+int intel_fbc_min_cdclk(const struct intel_crtc_state *crtc_state)
+{
+	struct intel_display *display = to_intel_display(crtc_state);
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+	struct intel_plane *plane = to_intel_plane(crtc->base.primary);
+	int min_cdclk;
+
+	if (!plane->fbc)
+		return 0;
+
+	min_cdclk = _intel_fbc_min_cdclk(crtc_state);
+
+	/*
+	 * Do not ask for more than the max CDCLK frequency,
+	 * if that is not enough FBC will simply not be used.
+	 */
+	if (min_cdclk > display->cdclk.max_cdclk_freq)
+		return 0;
+
+	return min_cdclk;
+}
 
 static bool intel_fbc_can_flip_nuke(struct intel_atomic_state *state,
 				    struct intel_crtc *crtc,
@@ -2083,6 +2155,13 @@ static struct intel_fbc *intel_fbc_create(struct intel_display *display,
 	if (!fbc)
 		return NULL;
 
+	fbc->compressed_fb = i915_gem_stolen_node_alloc(display->drm);
+	if (!fbc->compressed_fb)
+		goto err;
+	fbc->compressed_llb = i915_gem_stolen_node_alloc(display->drm);
+	if (!fbc->compressed_llb)
+		goto err;
+
 	fbc->id = fbc_id;
 	fbc->display = display;
 	INIT_WORK(&fbc->underrun_work, intel_fbc_underrun_work_fn);
@@ -2102,6 +2181,13 @@ static struct intel_fbc *intel_fbc_create(struct intel_display *display,
 		fbc->funcs = &i8xx_fbc_funcs;
 
 	return fbc;
+
+err:
+	i915_gem_stolen_node_free(fbc->compressed_llb);
+	i915_gem_stolen_node_free(fbc->compressed_fb);
+	kfree(fbc);
+
+	return NULL;
 }
 
 /**

drivers/gpu/drm/i915/display/intel_fbc.h

@@ -28,6 +28,7 @@ enum intel_fbc_id {
 };
 
 int intel_fbc_atomic_check(struct intel_atomic_state *state);
+int intel_fbc_min_cdclk(const struct intel_crtc_state *crtc_state);
 bool intel_fbc_pre_update(struct intel_atomic_state *state,
 			  struct intel_crtc *crtc);
 void intel_fbc_post_update(struct intel_atomic_state *state,
@@ -52,5 +53,7 @@ void intel_fbc_prepare_dirty_rect(struct intel_atomic_state *state,
 				  struct intel_crtc *crtc);
 void intel_fbc_dirty_rect_update_noarm(struct intel_dsb *dsb,
 				       struct intel_plane *plane);
+bool
+intel_fbc_is_enable_pixel_normalizer(const struct intel_plane_state *plane_state);
 
 #endif /* __INTEL_FBC_H__ */

drivers/gpu/drm/i915/display/intel_fbdev.c

@@ -205,6 +205,62 @@ static const struct drm_fb_helper_funcs intel_fb_helper_funcs = {
 	.fb_set_suspend = intelfb_set_suspend,
 };
 
+static void intel_fbdev_fill_mode_cmd(struct drm_fb_helper_surface_size *sizes,
+				      struct drm_mode_fb_cmd2 *mode_cmd)
+{
+	/* we don't do packed 24bpp */
+	if (sizes->surface_bpp == 24)
+		sizes->surface_bpp = 32;
+
+	mode_cmd->flags = DRM_MODE_FB_MODIFIERS;
+	mode_cmd->width = sizes->surface_width;
+	mode_cmd->height = sizes->surface_height;
+
+	mode_cmd->pitches[0] = intel_fbdev_fb_pitch_align(mode_cmd->width * DIV_ROUND_UP(sizes->surface_bpp, 8));
+	mode_cmd->pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
+							   sizes->surface_depth);
+	mode_cmd->modifier[0] = DRM_FORMAT_MOD_LINEAR;
+}
+
+static struct intel_framebuffer *
+__intel_fbdev_fb_alloc(struct intel_display *display,
+		       struct drm_fb_helper_surface_size *sizes)
+{
+	struct drm_mode_fb_cmd2 mode_cmd = {};
+	struct drm_framebuffer *fb;
+	struct drm_gem_object *obj;
+	int size;
+
+	intel_fbdev_fill_mode_cmd(sizes, &mode_cmd);
+
+	size = mode_cmd.pitches[0] * mode_cmd.height;
+	size = PAGE_ALIGN(size);
+
+	obj = intel_fbdev_fb_bo_create(display->drm, size);
+	if (IS_ERR(obj)) {
+		fb = ERR_CAST(obj);
+		goto err;
+	}
+
+	fb = intel_framebuffer_create(obj,
+				      drm_get_format_info(display->drm,
+							  mode_cmd.pixel_format,
+							  mode_cmd.modifier[0]),
+				      &mode_cmd);
+	if (IS_ERR(fb)) {
+		intel_fbdev_fb_bo_destroy(obj);
+		goto err;
+	}
+
+	drm_gem_object_put(obj);
+
+	return to_intel_framebuffer(fb);
+
+err:
+	return ERR_CAST(fb);
+
+}
+
 int intel_fbdev_driver_fbdev_probe(struct drm_fb_helper *helper,
 				   struct drm_fb_helper_surface_size *sizes)
 {
@@ -235,7 +291,8 @@ int intel_fbdev_driver_fbdev_probe(struct drm_fb_helper *helper,
 	if (!fb || drm_WARN_ON(display->drm, !intel_fb_bo(&fb->base))) {
 		drm_dbg_kms(display->drm,
 			    "no BIOS fb, allocating a new one\n");
-		fb = intel_fbdev_fb_alloc(helper, sizes);
+
+		fb = __intel_fbdev_fb_alloc(display, sizes);
 		if (IS_ERR(fb))
 			return PTR_ERR(fb);
 	} else {
@@ -275,7 +332,7 @@ int intel_fbdev_driver_fbdev_probe(struct drm_fb_helper *helper,
 
 	obj = intel_fb_bo(&fb->base);
 
-	ret = intel_fbdev_fb_fill_info(display, info, obj, vma);
+	ret = intel_fbdev_fb_fill_info(display->drm, info, obj, vma);
 	if (ret)
 		goto out_unpin;
 

drivers/gpu/drm/i915/display/intel_fbdev_fb.c

@@ -3,40 +3,22 @@
  * Copyright © 2023 Intel Corporation
  */
 
-#include <drm/drm_fb_helper.h>
+#include <linux/fb.h>
 
 #include "gem/i915_gem_lmem.h"
 
 #include "i915_drv.h"
-#include "intel_display_core.h"
-#include "intel_display_types.h"
-#include "intel_fb.h"
 #include "intel_fbdev_fb.h"
 
-struct intel_framebuffer *intel_fbdev_fb_alloc(struct drm_fb_helper *helper,
+u32 intel_fbdev_fb_pitch_align(u32 stride)
-					       struct drm_fb_helper_surface_size *sizes)
 {
-	struct intel_display *display = to_intel_display(helper->dev);
+	return ALIGN(stride, 64);
-	struct drm_i915_private *dev_priv = to_i915(display->drm);
+}
-	struct drm_framebuffer *fb;
+
-	struct drm_mode_fb_cmd2 mode_cmd = {};
+struct drm_gem_object *intel_fbdev_fb_bo_create(struct drm_device *drm, int size)
+{
+	struct drm_i915_private *dev_priv = to_i915(drm);
 	struct drm_i915_gem_object *obj;
-	int size;
-
-	/* we don't do packed 24bpp */
-	if (sizes->surface_bpp == 24)
-		sizes->surface_bpp = 32;
-
-	mode_cmd.width = sizes->surface_width;
-	mode_cmd.height = sizes->surface_height;
-
-	mode_cmd.pitches[0] = ALIGN(mode_cmd.width *
-				    DIV_ROUND_UP(sizes->surface_bpp, 8), 64);
-	mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
-							  sizes->surface_depth);
-
-	size = mode_cmd.pitches[0] * mode_cmd.height;
-	size = PAGE_ALIGN(size);
 
 	obj = ERR_PTR(-ENODEV);
 	if (HAS_LMEM(dev_priv)) {
@@ -51,31 +33,29 @@ struct intel_framebuffer *intel_fbdev_fb_alloc(struct drm_fb_helper *helper,
 		 *
 		 * Also skip stolen on MTL as Wa_22018444074 mitigation.
 		 */
-		if (!display->platform.meteorlake && size * 2 < dev_priv->dsm.usable_size)
+		if (!IS_METEORLAKE(dev_priv) && size * 2 < dev_priv->dsm.usable_size)
 			obj = i915_gem_object_create_stolen(dev_priv, size);
 		if (IS_ERR(obj))
 			obj = i915_gem_object_create_shmem(dev_priv, size);
 	}
 
 	if (IS_ERR(obj)) {
-		drm_err(display->drm, "failed to allocate framebuffer (%pe)\n", obj);
+		drm_err(drm, "failed to allocate framebuffer (%pe)\n", obj);
 		return ERR_PTR(-ENOMEM);
 	}
 
-	fb = intel_framebuffer_create(intel_bo_to_drm_bo(obj),
+	return &obj->base;
-				      drm_get_format_info(display->drm,
-							  mode_cmd.pixel_format,
-							  mode_cmd.modifier[0]),
-				      &mode_cmd);
-	i915_gem_object_put(obj);
-
-	return to_intel_framebuffer(fb);
 }
 
-int intel_fbdev_fb_fill_info(struct intel_display *display, struct fb_info *info,
+void intel_fbdev_fb_bo_destroy(struct drm_gem_object *obj)
+{
+	drm_gem_object_put(obj);
+}
+
+int intel_fbdev_fb_fill_info(struct drm_device *drm, struct fb_info *info,
 			     struct drm_gem_object *_obj, struct i915_vma *vma)
 {
-	struct drm_i915_private *i915 = to_i915(display->drm);
+	struct drm_i915_private *i915 = to_i915(drm);
 	struct drm_i915_gem_object *obj = to_intel_bo(_obj);
 	struct i915_gem_ww_ctx ww;
 	void __iomem *vaddr;
@@ -107,7 +87,7 @@ int intel_fbdev_fb_fill_info(struct intel_display *display, struct fb_info *info
 
 		vaddr = i915_vma_pin_iomap(vma);
 		if (IS_ERR(vaddr)) {
-			drm_err(display->drm,
+			drm_err(drm,
 				"Failed to remap framebuffer into virtual memory (%pe)\n", vaddr);
 			ret = PTR_ERR(vaddr);
 			continue;

drivers/gpu/drm/i915/display/intel_fbdev_fb.h

@@ -6,16 +6,18 @@
 #ifndef __INTEL_FBDEV_FB_H__
 #define __INTEL_FBDEV_FB_H__
 
-struct drm_fb_helper;
+#include <linux/types.h>
-struct drm_fb_helper_surface_size;
+
+struct drm_device;
 struct drm_gem_object;
+struct drm_mode_fb_cmd2;
 struct fb_info;
 struct i915_vma;
-struct intel_display;
 
-struct intel_framebuffer *intel_fbdev_fb_alloc(struct drm_fb_helper *helper,
+u32 intel_fbdev_fb_pitch_align(u32 stride);
-					       struct drm_fb_helper_surface_size *sizes);
+struct drm_gem_object *intel_fbdev_fb_bo_create(struct drm_device *drm, int size);
-int intel_fbdev_fb_fill_info(struct intel_display *display, struct fb_info *info,
+void intel_fbdev_fb_bo_destroy(struct drm_gem_object *obj);
+int intel_fbdev_fb_fill_info(struct drm_device *drm, struct fb_info *info,
 			     struct drm_gem_object *obj, struct i915_vma *vma);
 
 #endif

drivers/gpu/drm/i915/display/intel_fdi.c

@@ -9,13 +9,13 @@
 #include <drm/drm_print.h>
 
 #include "i915_reg.h"
-#include "i915_utils.h"
 #include "intel_atomic.h"
 #include "intel_crtc.h"
 #include "intel_ddi.h"
 #include "intel_de.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dp.h"
 #include "intel_fdi.h"
 #include "intel_fdi_regs.h"

drivers/gpu/drm/i915/display/intel_flipq.c

@@ -7,16 +7,16 @@
 
 #include <drm/drm_print.h>
 
-#include "i915_utils.h"
-#include "intel_step.h"
 #include "intel_crtc.h"
 #include "intel_de.h"
 #include "intel_display_core.h"
 #include "intel_display_types.h"
-#include "intel_flipq.h"
+#include "intel_display_utils.h"
 #include "intel_dmc.h"
 #include "intel_dmc_regs.h"
 #include "intel_dsb.h"
+#include "intel_flipq.h"
+#include "intel_step.h"
 #include "intel_vblank.h"
 #include "intel_vrr.h"
 

drivers/gpu/drm/i915/display/intel_hdcp.c

@@ -19,9 +19,9 @@
 #include <drm/intel/i915_component.h>
 
 #include "i915_reg.h"
-#include "i915_utils.h"
 #include "intel_connector.h"
 #include "intel_de.h"
+#include "intel_display_jiffies.h"
 #include "intel_display_power.h"
 #include "intel_display_power_well.h"
 #include "intel_display_regs.h"

drivers/gpu/drm/i915/display/intel_hdcp_gsc.c

@@ -9,7 +9,6 @@
 #include "gt/intel_gt.h"
 #include "gt/uc/intel_gsc_uc_heci_cmd_submit.h"
 #include "i915_drv.h"
-#include "i915_utils.h"
 #include "intel_hdcp_gsc.h"
 
 struct intel_hdcp_gsc_context {

drivers/gpu/drm/i915/display/intel_hdmi.c

@@ -45,7 +45,6 @@
 #include <media/cec-notifier.h>
 
 #include "g4x_hdmi.h"
-#include "i915_utils.h"
 #include "intel_atomic.h"
 #include "intel_audio.h"
 #include "intel_connector.h"
@@ -55,6 +54,7 @@
 #include "intel_display_driver.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dp.h"
 #include "intel_gmbus.h"
 #include "intel_hdcp.h"
@@ -68,6 +68,20 @@
 #include "intel_snps_phy.h"
 #include "intel_vrr.h"
 
+bool intel_hdmi_is_frl(u32 clock)
+{
+	switch (clock) {
+	case 300000: /* 3 Gbps */
+	case 600000: /* 6 Gbps */
+	case 800000: /* 8 Gbps */
+	case 1000000: /* 10 Gbps */
+	case 1200000: /* 12 Gbps */
+		return true;
+	default:
+		return false;
+	}
+}
+
 static void
 assert_hdmi_port_disabled(struct intel_hdmi *intel_hdmi)
 {

drivers/gpu/drm/i915/display/intel_hdmi.h

@@ -60,6 +60,7 @@ int intel_hdmi_dsc_get_num_slices(const struct intel_crtc_state *crtc_state,
 				  int src_max_slices, int src_max_slice_width,
 				  int hdmi_max_slices, int hdmi_throughput);
 int intel_hdmi_dsc_get_slice_height(int vactive);
+bool intel_hdmi_is_frl(u32 clock);
 
 void hsw_write_infoframe(struct intel_encoder *encoder,
 			 const struct intel_crtc_state *crtc_state,

drivers/gpu/drm/i915/display/intel_hotplug.c

@@ -28,12 +28,12 @@
 
 #include "i915_drv.h"
 #include "i915_irq.h"
-#include "i915_utils.h"
 #include "intel_connector.h"
-#include "intel_display_power.h"
 #include "intel_display_core.h"
+#include "intel_display_power.h"
 #include "intel_display_rpm.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dp.h"
 #include "intel_hdcp.h"
 #include "intel_hotplug.h"

drivers/gpu/drm/i915/display/intel_hotplug_irq.c

@@ -6,11 +6,11 @@
 #include <drm/drm_print.h>
 
 #include "i915_reg.h"
-#include "i915_utils.h"
 #include "intel_de.h"
 #include "intel_display_irq.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dp_aux.h"
 #include "intel_gmbus.h"
 #include "intel_hotplug.h"
@@ -420,6 +420,9 @@ u32 i9xx_hpd_irq_ack(struct intel_display *display)
 	u32 hotplug_status = 0, hotplug_status_mask;
 	int i;
 
+	if (!HAS_HOTPLUG(display))
+		return 0;
+
 	if (display->platform.g4x ||
 	    display->platform.valleyview || display->platform.cherryview)
 		hotplug_status_mask = HOTPLUG_INT_STATUS_G4X |

drivers/gpu/drm/i915/display/intel_link_bw.c

@@ -20,6 +20,7 @@
 #include "intel_dp_tunnel.h"
 #include "intel_fdi.h"
 #include "intel_link_bw.h"
+#include "intel_vdsc.h"
 
 static int get_forced_link_bpp_x16(struct intel_atomic_state *state,
 				   const struct intel_crtc *crtc)
@@ -55,7 +56,7 @@ void intel_link_bw_init_limits(struct intel_atomic_state *state,
 	struct intel_display *display = to_intel_display(state);
 	enum pipe pipe;
 
-	limits->force_fec_pipes = 0;
+	limits->link_dsc_pipes = 0;
 	limits->bpp_limit_reached_pipes = 0;
 	for_each_pipe(display, pipe) {
 		struct intel_crtc *crtc = intel_crtc_for_pipe(display, pipe);
@@ -65,8 +66,8 @@ void intel_link_bw_init_limits(struct intel_atomic_state *state,
 
 		if (state->base.duplicated && crtc_state) {
 			limits->max_bpp_x16[pipe] = crtc_state->max_link_bpp_x16;
-			if (crtc_state->fec_enable)
+			if (intel_dsc_enabled_on_link(crtc_state))
-				limits->force_fec_pipes |= BIT(pipe);
+				limits->link_dsc_pipes |= BIT(pipe);
 		} else {
 			limits->max_bpp_x16[pipe] = INT_MAX;
 		}
@@ -265,10 +266,10 @@ assert_link_limit_change_valid(struct intel_display *display,
 	bool bpps_changed = false;
 	enum pipe pipe;
 
-	/* FEC can't be forced off after it was forced on. */
+	/* DSC can't be disabled after it was enabled. */
 	if (drm_WARN_ON(display->drm,
-			(old_limits->force_fec_pipes & new_limits->force_fec_pipes) !=
+			(old_limits->link_dsc_pipes & new_limits->link_dsc_pipes) !=
-			old_limits->force_fec_pipes))
+			old_limits->link_dsc_pipes))
 		return false;
 
 	for_each_pipe(display, pipe) {
@@ -286,8 +287,8 @@ assert_link_limit_change_valid(struct intel_display *display,
 	/* At least one limit must change. */
 	if (drm_WARN_ON(display->drm,
 			!bpps_changed &&
-			new_limits->force_fec_pipes ==
+			new_limits->link_dsc_pipes ==
-			old_limits->force_fec_pipes))
+			old_limits->link_dsc_pipes))
 		return false;
 
 	return true;

drivers/gpu/drm/i915/display/intel_link_bw.h

@@ -15,7 +15,7 @@ struct intel_connector;
 struct intel_crtc_state;
 
 struct intel_link_bw_limits {
-	u8 force_fec_pipes;
+	u8 link_dsc_pipes;
 	u8 bpp_limit_reached_pipes;
 	/* in 1/16 bpp units */
 	int max_bpp_x16[I915_MAX_PIPES];

drivers/gpu/drm/i915/display/intel_lspcon.c

@@ -31,10 +31,10 @@
 #include <drm/drm_edid.h>
 #include <drm/drm_print.h>
 
-#include "i915_utils.h"
 #include "intel_de.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dp.h"
 #include "intel_hdmi.h"
 #include "intel_lspcon.h"

drivers/gpu/drm/i915/display/intel_lt_phy.h

@@ -0,0 +1,44 @@
+/* SPDX-License-Identifier: MIT
+ *
+ * Copyright © 2025 Intel Corporation
+ */
+
+#ifndef __INTEL_LT_PHY_H__
+#define __INTEL_LT_PHY_H__
+
+#include <linux/types.h>
+
+struct intel_atomic_state;
+struct intel_display;
+struct intel_encoder;
+struct intel_crtc_state;
+struct intel_crtc;
+struct intel_lt_phy_pll_state;
+
+void intel_lt_phy_pll_enable(struct intel_encoder *encoder,
+			     const struct intel_crtc_state *crtc_state);
+void intel_lt_phy_pll_disable(struct intel_encoder *encoder);
+int
+intel_lt_phy_pll_calc_state(struct intel_crtc_state *crtc_state,
+			    struct intel_encoder *encoder);
+int intel_lt_phy_calc_port_clock(struct intel_encoder *encoder,
+				 const struct intel_crtc_state *crtc_state);
+void intel_lt_phy_set_signal_levels(struct intel_encoder *encoder,
+				    const struct intel_crtc_state *crtc_state);
+void intel_lt_phy_dump_hw_state(struct intel_display *display,
+				const struct intel_lt_phy_pll_state *hw_state);
+bool
+intel_lt_phy_pll_compare_hw_state(const struct intel_lt_phy_pll_state *a,
+				  const struct intel_lt_phy_pll_state *b);
+void intel_lt_phy_pll_readout_hw_state(struct intel_encoder *encoder,
+				       const struct intel_crtc_state *crtc_state,
+				       struct intel_lt_phy_pll_state *pll_state);
+void intel_lt_phy_pll_state_verify(struct intel_atomic_state *state,
+				   struct intel_crtc *crtc);
+void intel_xe3plpd_pll_enable(struct intel_encoder *encoder,
+			      const struct intel_crtc_state *crtc_state);
+void intel_xe3plpd_pll_disable(struct intel_encoder *encoder);
+
+#define HAS_LT_PHY(display) (DISPLAY_VER(display) >= 35)
+
+#endif /* __INTEL_LT_PHY_H__ */

drivers/gpu/drm/i915/display/intel_lt_phy_regs.h

@@ -0,0 +1,75 @@
+/* SPDX-License-Identifier: MIT
+ *
+ * Copyright © 2025 Intel Corporation
+ */
+
+#ifndef __INTEL_LT_PHY_REGS_H__
+#define __INTEL_LT_PHY_REGS_H__
+
+#define XE3PLPD_MSGBUS_TIMEOUT_FAST_US	500
+#define XE3PLPD_MACCLK_TURNON_LATENCY_MS	1
+#define XE3PLPD_MACCLK_TURNON_LATENCY_US	21
+#define XE3PLPD_MACCLK_TURNOFF_LATENCY_US	1
+#define XE3PLPD_RATE_CALIB_DONE_LATENCY_US	50
+#define XE3PLPD_RESET_START_LATENCY_US	10
+#define XE3PLPD_PWRDN_TO_RDY_LATENCY_US	4
+#define XE3PLPD_RESET_END_LATENCY_US		200
+
+/* LT Phy MAC Register */
+#define LT_PHY_MAC_VDR			_MMIO(0xC00)
+#define    LT_PHY_PCLKIN_GATE		REG_BIT8(0)
+
+/* LT Phy Pipe Spec Registers */
+#define LT_PHY_TXY_CTL8(idx)		(0x408 + (0x200 * (idx)))
+#define  LT_PHY_TX_SWING_LEVEL_MASK	REG_GENMASK8(7, 4)
+#define  LT_PHY_TX_SWING_LEVEL(val)	REG_FIELD_PREP8(LT_PHY_TX_SWING_LEVEL_MASK, val)
+#define  LT_PHY_TX_SWING_MASK		REG_BIT8(3)
+#define  LT_PHY_TX_SWING(val)		REG_FIELD_PREP8(LT_PHY_TX_SWING_MASK, val)
+
+#define LT_PHY_TXY_CTL2(idx)		(0x402 + (0x200 * (idx)))
+#define LT_PHY_TXY_CTL3(idx)		(0x403 + (0x200 * (idx)))
+#define LT_PHY_TXY_CTL4(idx)		(0x404 + (0x200 * (idx)))
+#define  LT_PHY_TX_CURSOR_MASK		REG_GENMASK8(5, 0)
+#define  LT_PHY_TX_CURSOR(val)		REG_FIELD_PREP8(LT_PHY_TX_CURSOR_MASK, val)
+
+#define LT_PHY_TXY_CTL10(idx)		(0x40A + (0x200 * (idx)))
+#define LT_PHY_TXY_CTL10_MAC(idx)	_MMIO(LT_PHY_TXY_CTL10(idx))
+#define  LT_PHY_TX_LANE_ENABLE		REG_BIT8(0)
+
+/* LT Phy Vendor Register */
+#define LT_PHY_VDR_0_CONFIG	0xC02
+#define  LT_PHY_VDR_DP_PLL_ENABLE	REG_BIT(7)
+#define LT_PHY_VDR_1_CONFIG	0xC03
+#define  LT_PHY_VDR_RATE_ENCODING_MASK	REG_GENMASK8(6, 3)
+#define  LT_PHY_VDR_MODE_ENCODING_MASK	REG_GENMASK8(2, 0)
+#define LT_PHY_VDR_2_CONFIG	0xCC3
+
+#define LT_PHY_VDR_X_ADDR_MSB(idx)	(0xC04 + 0x6 * (idx))
+#define LT_PHY_VDR_X_ADDR_LSB(idx)	(0xC05 + 0x6 * (idx))
+
+#define LT_PHY_VDR_X_DATAY(idx, y)	((0xC06 + (3 - (y))) + 0x6 * (idx))
+
+#define LT_PHY_RATE_UPDATE		0xCC4
+#define    LT_PHY_RATE_CONTROL_VDR_UPDATE	REG_BIT8(0)
+
+#define _XE3PLPD_PORT_BUF_CTL5(idx)	_MMIO(_PICK_EVEN_2RANGES(idx, PORT_TC1, \
+								 _XELPDP_PORT_BUF_CTL1_LN0_A, \
+								 _XELPDP_PORT_BUF_CTL1_LN0_B, \
+								 _XELPDP_PORT_BUF_CTL1_LN0_USBC1, \
+								 _XELPDP_PORT_BUF_CTL1_LN0_USBC2) \
+								+ 0x34)
+#define XE3PLPD_PORT_BUF_CTL5(port)	_XE3PLPD_PORT_BUF_CTL5(__xe2lpd_port_idx(port))
+#define  XE3PLPD_MACCLK_RESET_0		REG_BIT(11)
+#define  XE3PLPD_MACCLK_RATE_MASK	REG_GENMASK(4, 0)
+#define  XE3PLPD_MACCLK_RATE_DEF	REG_FIELD_PREP(XE3PLPD_MACCLK_RATE_MASK, 0x1F)
+
+#define _XE3PLPD_PORT_P2M_MSGBUS_STATUS_P2P(idx, lane)	_MMIO(_PICK_EVEN_2RANGES(idx, PORT_TC1, \
+										 _XELPDP_PORT_M2P_MSGBUS_CTL_LN0_A, \
+										 _XELPDP_PORT_M2P_MSGBUS_CTL_LN0_B, \
+										 _XELPDP_PORT_M2P_MSGBUS_CTL_LN0_USBC1, \
+										 _XELPDP_PORT_M2P_MSGBUS_CTL_LN0_USBC2) \
+										 + 0x60 + (lane) * 0x4)
+#define XE3PLPD_PORT_P2M_MSGBUS_STATUS_P2P(port, lane)	 _XE3PLPD_PORT_P2M_MSGBUS_STATUS_P2P(__xe2lpd_port_idx(port), \
+											    lane)
+#define   XE3LPD_PORT_P2M_ADDR_MASK			REG_GENMASK(11, 0)
+#endif /* __INTEL_LT_PHY_REGS_H__ */

drivers/gpu/drm/i915/display/intel_modeset_setup.c

@@ -19,6 +19,7 @@
 #include "intel_color.h"
 #include "intel_crtc.h"
 #include "intel_crtc_state_dump.h"
+#include "intel_dbuf_bw.h"
 #include "intel_ddi.h"
 #include "intel_de.h"
 #include "intel_display.h"
@@ -176,6 +177,7 @@ static void intel_crtc_disable_noatomic_complete(struct intel_crtc *crtc)
 	intel_cdclk_crtc_disable_noatomic(crtc);
 	skl_wm_crtc_disable_noatomic(crtc);
 	intel_bw_crtc_disable_noatomic(crtc);
+	intel_dbuf_bw_crtc_disable_noatomic(crtc);
 
 	intel_pmdemand_update_port_clock(display, pmdemand_state, pipe, 0);
 }
@@ -851,18 +853,23 @@ static void intel_modeset_readout_hw_state(struct intel_display *display)
 			 */
 			if (plane_state->uapi.visible && plane->min_cdclk) {
 				if (crtc_state->double_wide || DISPLAY_VER(display) >= 10)
-					crtc_state->min_cdclk[plane->id] =
+					crtc_state->plane_min_cdclk[plane->id] =
 						DIV_ROUND_UP(crtc_state->pixel_rate, 2);
 				else
-					crtc_state->min_cdclk[plane->id] =
+					crtc_state->plane_min_cdclk[plane->id] =
 						crtc_state->pixel_rate;
 			}
 			drm_dbg_kms(display->drm,
 				    "[PLANE:%d:%s] min_cdclk %d kHz\n",
 				    plane->base.base.id, plane->base.name,
-				    crtc_state->min_cdclk[plane->id]);
+				    crtc_state->plane_min_cdclk[plane->id]);
 		}
 
+		crtc_state->min_cdclk = intel_crtc_min_cdclk(crtc_state);
+
+		drm_dbg_kms(display->drm, "[CRTC:%d:%s] min_cdclk %d kHz\n",
+			    crtc->base.base.id, crtc->base.name, crtc_state->min_cdclk);
+
 		intel_pmdemand_update_port_clock(display, pmdemand_state, pipe,
 						 crtc_state->port_clock);
 	}
@@ -872,6 +879,7 @@ static void intel_modeset_readout_hw_state(struct intel_display *display)
 		intel_wm_get_hw_state(display);
 
 	intel_bw_update_hw_state(display);
+	intel_dbuf_bw_update_hw_state(display);
 	intel_cdclk_update_hw_state(display);
 
 	intel_pmdemand_init_pmdemand_params(display, pmdemand_state);

drivers/gpu/drm/i915/display/intel_modeset_verify.c

@@ -16,6 +16,7 @@
 #include "intel_display_core.h"
 #include "intel_display_types.h"
 #include "intel_fdi.h"
+#include "intel_lt_phy.h"
 #include "intel_modeset_verify.h"
 #include "intel_snps_phy.h"
 #include "skl_watermark.h"
@@ -246,6 +247,7 @@ void intel_modeset_verify_crtc(struct intel_atomic_state *state,
 	intel_dpll_state_verify(state, crtc);
 	intel_mpllb_state_verify(state, crtc);
 	intel_cx0pll_state_verify(state, crtc);
+	intel_lt_phy_pll_state_verify(state, crtc);
 }
 
 void intel_modeset_verify_disabled(struct intel_atomic_state *state)

drivers/gpu/drm/i915/display/intel_pch.c

@@ -5,8 +5,8 @@
 
 #include <drm/drm_print.h>
 
-#include "i915_utils.h"
 #include "intel_display_core.h"
+#include "intel_display_utils.h"
 #include "intel_pch.h"
 
 #define INTEL_PCH_DEVICE_ID_MASK		0xff80
@@ -328,7 +328,7 @@ void intel_pch_detect(struct intel_display *display)
 			    "Display disabled, reverting to NOP PCH\n");
 		display->pch_type = PCH_NOP;
 	} else if (!pch) {
-		if (i915_run_as_guest() && HAS_DISPLAY(display)) {
+		if (intel_display_run_as_guest(display) && HAS_DISPLAY(display)) {
 			intel_virt_detect_pch(display, &id, &pch_type);
 			display->pch_type = pch_type;
 		} else {

drivers/gpu/drm/i915/display/intel_pch_refclk.c

@@ -6,10 +6,10 @@
 #include <drm/drm_print.h>
 
 #include "i915_reg.h"
-#include "i915_utils.h"
 #include "intel_de.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_panel.h"
 #include "intel_pch_refclk.h"
 #include "intel_sbi.h"

drivers/gpu/drm/i915/display/intel_pfit.c

@@ -5,12 +5,12 @@
 
 #include <drm/drm_print.h>
 
-#include "i915_utils.h"
 #include "intel_de.h"
 #include "intel_display_core.h"
 #include "intel_display_driver.h"
 #include "intel_display_regs.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_lvds_regs.h"
 #include "intel_pfit.h"
 #include "intel_pfit_regs.h"

drivers/gpu/drm/i915/display/intel_plane.c

@@ -45,7 +45,6 @@
 #include <drm/drm_panic.h>
 
 #include "gem/i915_gem_object.h"
-#include "i915_scheduler_types.h"
 #include "i9xx_plane_regs.h"
 #include "intel_cdclk.h"
 #include "intel_cursor.h"
@@ -292,64 +291,21 @@ intel_plane_relative_data_rate(const struct intel_crtc_state *crtc_state,
 				   rel_data_rate);
 }
 
-int intel_plane_calc_min_cdclk(struct intel_atomic_state *state,
+static void intel_plane_calc_min_cdclk(struct intel_atomic_state *state,
-			       struct intel_plane *plane,
+				       struct intel_plane *plane)
-			       bool *need_cdclk_calc)
 {
-	struct intel_display *display = to_intel_display(plane);
 	const struct intel_plane_state *plane_state =
 		intel_atomic_get_new_plane_state(state, plane);
 	struct intel_crtc *crtc = to_intel_crtc(plane_state->hw.crtc);
-	const struct intel_cdclk_state *cdclk_state;
-	const struct intel_crtc_state *old_crtc_state;
 	struct intel_crtc_state *new_crtc_state;
 
 	if (!plane_state->uapi.visible || !plane->min_cdclk)
-		return 0;
+		return;
 
-	old_crtc_state = intel_atomic_get_old_crtc_state(state, crtc);
 	new_crtc_state = intel_atomic_get_new_crtc_state(state, crtc);
 
-	new_crtc_state->min_cdclk[plane->id] =
+	new_crtc_state->plane_min_cdclk[plane->id] =
 		plane->min_cdclk(new_crtc_state, plane_state);
-
-	/*
-	 * No need to check against the cdclk state if
-	 * the min cdclk for the plane doesn't increase.
-	 *
-	 * Ie. we only ever increase the cdclk due to plane
-	 * requirements. This can reduce back and forth
-	 * display blinking due to constant cdclk changes.
-	 */
-	if (new_crtc_state->min_cdclk[plane->id] <=
-	    old_crtc_state->min_cdclk[plane->id])
-		return 0;
-
-	cdclk_state = intel_atomic_get_cdclk_state(state);
-	if (IS_ERR(cdclk_state))
-		return PTR_ERR(cdclk_state);
-
-	/*
-	 * No need to recalculate the cdclk state if
-	 * the min cdclk for the pipe doesn't increase.
-	 *
-	 * Ie. we only ever increase the cdclk due to plane
-	 * requirements. This can reduce back and forth
-	 * display blinking due to constant cdclk changes.
-	 */
-	if (new_crtc_state->min_cdclk[plane->id] <=
-	    intel_cdclk_min_cdclk(cdclk_state, crtc->pipe))
-		return 0;
-
-	drm_dbg_kms(display->drm,
-		    "[PLANE:%d:%s] min cdclk (%d kHz) > [CRTC:%d:%s] min cdclk (%d kHz)\n",
-		    plane->base.base.id, plane->base.name,
-		    new_crtc_state->min_cdclk[plane->id],
-		    crtc->base.base.id, crtc->base.name,
-		    intel_cdclk_min_cdclk(cdclk_state, crtc->pipe));
-	*need_cdclk_calc = true;
-
-	return 0;
 }
 
 static void intel_plane_clear_hw_state(struct intel_plane_state *plane_state)
@@ -435,7 +391,7 @@ void intel_plane_set_invisible(struct intel_crtc_state *crtc_state,
 	crtc_state->data_rate_y[plane->id] = 0;
 	crtc_state->rel_data_rate[plane->id] = 0;
 	crtc_state->rel_data_rate_y[plane->id] = 0;
-	crtc_state->min_cdclk[plane->id] = 0;
+	crtc_state->plane_min_cdclk[plane->id] = 0;
 
 	plane_state->uapi.visible = false;
 }
@@ -1172,7 +1128,6 @@ static int
 intel_prepare_plane_fb(struct drm_plane *_plane,
 		       struct drm_plane_state *_new_plane_state)
 {
-	struct i915_sched_attr attr = { .priority = I915_PRIORITY_DISPLAY };
 	struct intel_plane *plane = to_intel_plane(_plane);
 	struct intel_display *display = to_intel_display(plane);
 	struct intel_plane_state *new_plane_state =
@@ -1221,8 +1176,7 @@ intel_prepare_plane_fb(struct drm_plane *_plane,
 		goto unpin_fb;
 
 	if (new_plane_state->uapi.fence) {
-		i915_gem_fence_wait_priority(new_plane_state->uapi.fence,
+		i915_gem_fence_wait_priority_display(new_plane_state->uapi.fence);
-					     &attr);
 
 		intel_display_rps_boost_after_vblank(new_plane_state->hw.crtc,
 						     new_plane_state->uapi.fence);
@@ -1746,5 +1700,8 @@ int intel_plane_atomic_check(struct intel_atomic_state *state)
 			return ret;
 	}
 
+	for_each_new_intel_plane_in_state(state, plane, plane_state, i)
+		intel_plane_calc_min_cdclk(state, plane);
+
 	return 0;
 }

drivers/gpu/drm/i915/display/intel_plane.h

@@ -69,9 +69,6 @@ int intel_plane_atomic_check_with_state(const struct intel_crtc_state *old_crtc_
 					struct intel_crtc_state *crtc_state,
 					const struct intel_plane_state *old_plane_state,
 					struct intel_plane_state *intel_state);
-int intel_plane_calc_min_cdclk(struct intel_atomic_state *state,
-			       struct intel_plane *plane,
-			       bool *need_cdclk_calc);
 int intel_plane_check_clipping(struct intel_plane_state *plane_state,
 			       struct intel_crtc_state *crtc_state,
 			       int min_scale, int max_scale,

drivers/gpu/drm/i915/display/intel_pmdemand.c

@@ -7,13 +7,14 @@
 
 #include <drm/drm_print.h>
 
-#include "i915_utils.h"
 #include "intel_atomic.h"
 #include "intel_bw.h"
 #include "intel_cdclk.h"
 #include "intel_de.h"
+#include "intel_display_jiffies.h"
 #include "intel_display_regs.h"
 #include "intel_display_trace.h"
+#include "intel_display_utils.h"
 #include "intel_pmdemand.h"
 #include "intel_step.h"
 #include "skl_watermark.h"