Merge tag 'drm-next-2025-10-01' of https://gitlab.freedesktop.org/drm/kernel

Pull drm updates from Dave Airlie:
 "cross-subsystem:
   - i2c-hid: Make elan touch controllers power on after panel is
     enabled
   - dt bindings for STM32MP25 SoC
   - pci vgaarb: use screen_info helpers
   - rust pin-init updates
   - add MEI driver for late binding firmware update/load

  uapi:
   - add ioctl for reassigning GEM handles
   - provide boot_display attribute on boot-up devices

  core:
   - document DRM_MODE_PAGE_FLIP_EVENT
   - add vendor specific recovery method to drm device wedged uevent

  gem:
   - Simplify gpuvm locking

  ttm:
   - add interface to populate buffers

  sched:
   - Fix race condition in trace code

  atomic:
   - Reallow no-op async page flips

  display:
   - dp: Fix command length

  video:
   - Improve pixel-format handling for struct screen_info

  rust:
   - drop Opaque<> from ioctl args
   - Alloc:
       - BorrowedPage type and AsPageIter traits
       - Implement Vmalloc::to_page() and VmallocPageIter
   - DMA/Scatterlist:
       - Add dma::DataDirection and type alias for dma_addr_t
       - Abstraction for struct scatterlist and sg_table
   - DRM:
       - simplify use of generics
       - add DriverFile type alias
       - drop Object::SIZE
   - Rust:
       - pin-init tree merge
       - Various methods for AsBytes and FromBytes traits

  gpuvm:
   - Support madvice in Xe driver

  gpusvm:
   - fix hmm_pfn_to_map_order usage in gpusvm

  bridge:
   - Improve and fix ref counting on bridge management
   - cdns-dsi: Various improvements to mode setting
   - Support Solomon SSD2825 plus DT bindings
   - Support Waveshare DSI2DPI plus DT bindings
   - Support Content Protection property
   - display-connector: Improve DP display detection
   - Add support for Radxa Ra620 plus DT bindings
   - adv7511: Provide SPD and HDMI infoframes
   - it6505: Replace crypto_shash with sha()
   - synopsys: Add support for DW DPTX Controller plus DT bindings
   - adv7511: Write full Audio infoframe
   - ite6263: Support vendor-specific infoframes
   - simple: Add support for Realtek RTD2171 DP-to-HDMI plus DT bindings

  panel:
   - panel-edp: Support mt8189 Chromebooks; Support BOE NV140WUM-N64;
     Support SHP LQ134Z1; Fixes
   - panel-simple: Support Olimex LCD-OLinuXino-5CTS plus DT bindings
   - Support Samsung AMS561RA01
   - Support Hydis HV101HD1 plus DT bindings
   - ilitek-ili9881c: Refactor mode setting; Add support for Bestar
     BSD1218-A101KL68 LCD plus DT bindings
   - lvds: Add support for Ampire AMP19201200B5TZQW-T03 to DT bindings
   - edp: Add support for additonal mt8189 Chromebook panels
   - lvds: Add DT bindings for EDT ETML0700Z8DHA

  amdgpu:
   - add CRIU support for gem objects
   - RAS updates
   - VCN SRAM load fixes
   - EDID read fixes
   - eDP ALPM support
   - Documentation updates
   - Rework PTE flag generation
   - DCE6 fixes
   - VCN devcoredump cleanup
   - MMHUB client id fixes
   - VCN 5.0.1 RAS support
   - SMU 13.0.x updates
   - Expanded PCIe DPC support
   - Expanded VCN reset support
   - VPE per queue reset support
   - give kernel jobs unique id for tracing
   - pre-populate exported buffers
   - cyan skillfish updates
   - make vbios build number available in sysfs
   - userq updates
   - HDCP updates
   - support MMIO remap page as ttm pool
   - JPEG parser updates
   - DCE6 DC updates
   - use devm for i2c buses
   - GPUVM locking updates
   - Drop non-DC DCE11 code
   - improve fallback handling for pixel encoding

  amdkfd:
   - SVM/page migration fixes
   - debugfs fixes
   - add CRIO support for gem objects
   - SVM updates

  radeon:
   - use dev_warn_once in CS parsers

  xe:
   - add madvise interface
   - add DRM_IOCTL_XE_VM_QUERY_MEMORY_RANGE_ATTRS to query VMA count
     and memory attributes
   - drop L# bank mask reporting from media GT3 on Xe3+.
   - add SLPC power_profile sysfs interface
   - add configs attribs to add post/mid context-switch commands
   - handle firmware reported hardware errors notifying userspace with
     device wedged uevent
   - use same dir structure across sysfs/debugfs
   - cleanup and future proof vram region init
   - add G-states and PCI link states to debugfs
   - Add SRIOV support for CCS surfaces on Xe2+
   - Enable SRIOV PF mode by default on supported platforms
   - move flush to common code
   - extended core workarounds for Xe2/3
   - use DRM scheduler for delayed GT TLB invalidations
   - configs improvements and allow VF device enablement
   - prep work to expose mmio regions to userspace
   - VF migration support added
   - prepare GPU SVM for THP migration
   - start fixing XE_PAGE_SIZE vs PAGE_SIZE
   - add PSMI support for hw validation
   - resize VF bars to max possible size according to number of VFs
   - Ensure GT is in C0 during resume
   - pre-populate exported buffers
   - replace xe_hmm with gpusvm
   - add more SVM GT stats to debugfs
   - improve fake pci and WA kunnit handle for new platform testing
   - Test GuC to GuC comms to add debugging
   - use attribute groups to simplify sysfs registration
   - add Late Binding firmware code to interact with MEI

  i915:
   - apply multiple JSL/EHL/Gen7/Gen6 workarounds properly
   - protect against overflow in active_engine()
   - Use try_cmpxchg64() in __active_lookup()
   - include GuC registers in error state
   - get rid of dev->struct_mutex
   - iopoll: generalize read_poll_timout
   - lots more display refactoring
   - Reject HBR3 in any eDP Panel
   - Prune modes for YUV420
   - Display Wa fix, additions, and updates
   - DP: Fix 2.7 Gbps link training on g4x
   - DP: Adjust the idle pattern handling
   - DP: Shuffle the link training code a bit
   - Don't set/read the DSI C clock divider on GLK
   - Enable_psr kernel parameter changes
   - Type-C enabled/disconnected dp-alt sink
   - Wildcat Lake enabling
   - DP HDR updates
   - DRAM detection
   - wait PSR idle on dsb commit
   - Remove FBC modulo 4 restriction for ADL-P+
   - panic: refactor framebuffer allocation

  habanalabs:
   - debug/visibility improvements
   - vmalloc-backed coherent mmap support
   - HLDIO infrastructure

  nova-core:
   - various register!() macro improvements
   - minor vbios/firmware fixes/refactoring
   - advance firmware boot stages; process Booter and patch signatures
   - process GSP and GSP bootloader
   - Add r570.144 firmware bindings and update to it
   - Move GSP boot code to own module
   - Use new pin-init features to store driver's private data in a
     single allocation
   - Update ARef import from sync::aref

  nova-drm:
   - Update ARef import from sync::aref

  tyr:
   - initial driver skeleton for a rust driver for ARM Mali GPUs
   - capable of powering up, query metadata and provide it to userspace.

  msm:
   - GPU and Core:
      - in DT bindings describe clocks per GPU type
      - GMU bandwidth voting for x1-85
      - a623/a663 speedbins
      - cleanup some remaining no-iommu leftovers after VM_BIND conversion
      - fix GEM obj 32b size truncation
      - add missing VM_BIND param validation
      - IFPC for x1-85 and a750
      - register xml and gen_header.py sync from mesa
   - Display:
      - add missing bindings for display on SC8180X
      - added DisplayPort MST bindings
      - conversion from round_rate() to determine_rate()

  amdxdna:
   - add IOCTL_AMDXDNA_GET_ARRAY
   - support user space allocated buffers
   - streamline PM interfaces
   - Refactoring wrt. hardware contexts
   - improve error reporting

  nouveau:
   - use GSP firmware by default
   - improve error reporting
   - Pre-populate exported buffers

  ast:
   - Clean up detection of DRAM config

  exynos:
   - add DSIM bridge driver support for Exynos7870
   - Document Exynos7870 DSIM compatible in dt-binding

  panthor:
   - Print task/pid on errors
   - Add support for Mali G710, G510, G310, Gx15, Gx20, Gx25
   - Improve cache flushing
   - Fail VM bind if BO has offset

  renesas:
   - convert to RUNTIME_PM_OPS

  rcar-du:
   - Make number of lanes configurable
   - Use RUNTIME_PM_OPS
   - Add support for DSI commands

  rocket:
   - Add driver for Rockchip NPU plus DT bindings
   - Use kfree() and sizeof() correctly
   - Test DMA status

  rockchip:
   - dsi2: Add support for RK3576 plus DT bindings
   - Add support for RK3588 DPTX output

  tidss:
   - Use crtc_ fields for programming display mode
   - Remove other drivers from aperture

  pixpaper:
   - Add support for Mayqueen Pixpaper plus DT bindings

  v3d:
   - Support querying nubmer of GPU resets for KHR_robustness

  stm:
   - Clean up logging
   - ltdc: Add support support for STM32MP257F-EV1 plus DT bindings

  sitronix:
   - st7571-i2c: Add support for inverted displays and 2-bit grayscale

  tidss:
   - Convert to kernel's FIELD_ macros

  vesadrm:
   - Support 8-bit palette mode

  imagination:
   - Improve power management
   - Add support for TH1520 GPU
   - Support Risc-V architectures

  v3d:
   - Improve job management and locking

  vkms:
   - Support variants of ARGB8888, ARGB16161616, RGB565, RGB888 and P01x
   - Spport YUV with 16-bit components"

* tag 'drm-next-2025-10-01' of https://gitlab.freedesktop.org/drm/kernel: (1455 commits)
  drm/amd: Add name to modes from amdgpu_connector_add_common_modes()
  drm/amd: Drop some common modes from amdgpu_connector_add_common_modes()
  drm/amdgpu: update MODULE_PARM_DESC for freesync_video
  drm/amd: Use dynamic array size declaration for amdgpu_connector_add_common_modes()
  drm/amd/display: Share dce100_validate_global with DCE6-8
  drm/amd/display: Share dce100_validate_bandwidth with DCE6-8
  drm/amdgpu: Fix fence signaling race condition in userqueue
  amd/amdkfd: enhance kfd process check in switch partition
  amd/amdkfd: resolve a race in amdgpu_amdkfd_device_fini_sw
  drm/amd/display: Reject modes with too high pixel clock on DCE6-10
  drm/amd: Drop unnecessary check in amdgpu_connector_add_common_modes()
  drm/amd/display: Only enable common modes for eDP and LVDS
  drm/amdgpu: remove the redeclaration of variable i
  drm/amdgpu/userq: assign an error code for invalid userq va
  drm/amdgpu: revert "rework reserved VMID handling" v2
  drm/amdgpu: remove leftover from enforcing isolation by VMID
  drm/amdgpu: Add fallback to pipe reset if KCQ ring reset fails
  accel/habanalabs: add Infineon version check
  accel/habanalabs/gaudi2: read preboot status after recovering from dirty state
  accel/habanalabs: add HL_GET_P_STATE passthrough type
  ...

1 files changed, 72 insertions, 70 deletions

diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index 9ecbb4b99c37..c09aa759f4d4 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -26,6 +26,7 @@
  */
 
 #include <linux/iopoll.h>
+#include <linux/seq_buf.h>
 #include <linux/string_helpers.h>
 
 #include <drm/display/drm_dp_helper.h>
@@ -2167,7 +2168,8 @@ icl_program_mg_dp_mode(struct intel_digital_port *dig_port,
 {
 	struct intel_display *display = to_intel_display(crtc_state);
 	enum tc_port tc_port = intel_encoder_to_tc(&dig_port->base);
-	u32 ln0, ln1, pin_assignment;
+	enum intel_tc_pin_assignment pin_assignment;
+	u32 ln0, ln1;
 	u8 width;
 
 	if (DISPLAY_VER(display) >= 14)
@@ -2189,11 +2191,11 @@ icl_program_mg_dp_mode(struct intel_digital_port *dig_port,
 	ln1 &= ~(MG_DP_MODE_CFG_DP_X1_MODE | MG_DP_MODE_CFG_DP_X2_MODE);
 
 	/* DPPATC */
-	pin_assignment = intel_tc_port_get_pin_assignment_mask(dig_port);
+	pin_assignment = intel_tc_port_get_pin_assignment(dig_port);
 	width = crtc_state->lane_count;
 
 	switch (pin_assignment) {
-	case 0x0:
+	case INTEL_TC_PIN_ASSIGNMENT_NONE:
 		drm_WARN_ON(display->drm,
 			    !intel_tc_port_in_legacy_mode(dig_port));
 		if (width == 1) {
@@ -2203,20 +2205,20 @@ icl_program_mg_dp_mode(struct intel_digital_port *dig_port,
 			ln1 |= MG_DP_MODE_CFG_DP_X2_MODE;
 		}
 		break;
-	case 0x1:
+	case INTEL_TC_PIN_ASSIGNMENT_A:
 		if (width == 4) {
 			ln0 |= MG_DP_MODE_CFG_DP_X2_MODE;
 			ln1 |= MG_DP_MODE_CFG_DP_X2_MODE;
 		}
 		break;
-	case 0x2:
+	case INTEL_TC_PIN_ASSIGNMENT_B:
 		if (width == 2) {
 			ln0 |= MG_DP_MODE_CFG_DP_X2_MODE;
 			ln1 |= MG_DP_MODE_CFG_DP_X2_MODE;
 		}
 		break;
-	case 0x3:
-	case 0x5:
+	case INTEL_TC_PIN_ASSIGNMENT_C:
+	case INTEL_TC_PIN_ASSIGNMENT_E:
 		if (width == 1) {
 			ln0 |= MG_DP_MODE_CFG_DP_X1_MODE;
 			ln1 |= MG_DP_MODE_CFG_DP_X1_MODE;
@@ -2225,8 +2227,8 @@ icl_program_mg_dp_mode(struct intel_digital_port *dig_port,
 			ln1 |= MG_DP_MODE_CFG_DP_X2_MODE;
 		}
 		break;
-	case 0x4:
-	case 0x6:
+	case INTEL_TC_PIN_ASSIGNMENT_D:
+	case INTEL_TC_PIN_ASSIGNMENT_F:
 		if (width == 1) {
 			ln0 |= MG_DP_MODE_CFG_DP_X1_MODE;
 			ln1 |= MG_DP_MODE_CFG_DP_X1_MODE;
@@ -2340,34 +2342,24 @@ static void intel_dp_sink_set_fec_ready(struct intel_dp *intel_dp,
 		drm_dbg_kms(display->drm, "Failed to clear FEC detected flags\n");
 }
 
-static int read_fec_detected_status(struct drm_dp_aux *aux)
-{
-	int ret;
-	u8 status;
-
-	ret = drm_dp_dpcd_readb(aux, DP_FEC_STATUS, &status);
-	if (ret < 0)
-		return ret;
-
-	return status;
-}
-
 static int wait_for_fec_detected(struct drm_dp_aux *aux, bool enabled)
 {
 	struct intel_display *display = to_intel_display(aux->drm_dev);
 	int mask = enabled ? DP_FEC_DECODE_EN_DETECTED : DP_FEC_DECODE_DIS_DETECTED;
-	int status;
-	int err;
+	u8 status = 0;
+	int ret, err;
 
-	err = readx_poll_timeout(read_fec_detected_status, aux, status,
-				 status & mask || status < 0,
-				 10000, 200000);
+	ret = poll_timeout_us(err = drm_dp_dpcd_read_byte(aux, DP_FEC_STATUS, &status),
+			      err || (status & mask),
+			      10 * 1000, 200 * 1000, false);
 
-	if (err || status < 0) {
+	/* Either can be non-zero, but not both */
+	ret = ret ?: err;
+	if (ret) {
 		drm_dbg_kms(display->drm,
-			    "Failed waiting for FEC %s to get detected: %d (status %d)\n",
-			    str_enabled_disabled(enabled), err, status);
-		return err ? err : status;
+			    "Failed waiting for FEC %s to get detected: %d (status 0x%02x)\n",
+			    str_enabled_disabled(enabled), ret, status);
+		return ret;
 	}
 
 	return 0;
@@ -2562,6 +2554,7 @@ mtl_ddi_enable_d2d(struct intel_encoder *encoder)
 	enum port port = encoder->port;
 	i915_reg_t reg;
 	u32 set_bits, wait_bits;
+	int ret;
 
 	if (DISPLAY_VER(display) < 14)
 		return;
@@ -2577,7 +2570,11 @@ mtl_ddi_enable_d2d(struct intel_encoder *encoder)
 	}
 
 	intel_de_rmw(display, reg, 0, set_bits);
-	if (wait_for_us(intel_de_read(display, reg) & wait_bits, 100)) {
+
+	ret = intel_de_wait_custom(display, reg,
+				   wait_bits, wait_bits,
+				   100, 0, NULL);
+	if (ret) {
 		drm_err(display->drm, "Timeout waiting for D2D Link enable for DDI/PORT_BUF_CTL %c\n",
 			port_name(port));
 	}
@@ -3059,6 +3056,7 @@ mtl_ddi_disable_d2d(struct intel_encoder *encoder)
 	enum port port = encoder->port;
 	i915_reg_t reg;
 	u32 clr_bits, wait_bits;
+	int ret;
 
 	if (DISPLAY_VER(display) < 14)
 		return;
@@ -3074,7 +3072,11 @@ mtl_ddi_disable_d2d(struct intel_encoder *encoder)
 	}
 
 	intel_de_rmw(display, reg, clr_bits, 0);
-	if (wait_for_us(!(intel_de_read(display, reg) & wait_bits), 100))
+
+	ret = intel_de_wait_custom(display, reg,
+				   wait_bits, 0,
+				   100, 0, NULL);
+	if (ret)
 		drm_err(display->drm, "Timeout waiting for D2D Link disable for DDI/PORT_BUF_CTL %c\n",
 			port_name(port));
 }
@@ -5067,11 +5069,45 @@ static bool port_in_use(struct intel_display *display, enum port port)
 	return false;
 }
 
+static const char *intel_ddi_encoder_name(struct intel_display *display,
+					  enum port port, enum phy phy,
+					  struct seq_buf *s)
+{
+	if (DISPLAY_VER(display) >= 13 && port >= PORT_D_XELPD) {
+		seq_buf_printf(s, "DDI %c/PHY %c",
+			       port_name(port - PORT_D_XELPD + PORT_D),
+			       phy_name(phy));
+	} else if (DISPLAY_VER(display) >= 12) {
+		enum tc_port tc_port = intel_port_to_tc(display, port);
+
+		seq_buf_printf(s, "DDI %s%c/PHY %s%c",
+			       port >= PORT_TC1 ? "TC" : "",
+			       port >= PORT_TC1 ? port_tc_name(port) : port_name(port),
+			       tc_port != TC_PORT_NONE ? "TC" : "",
+			       tc_port != TC_PORT_NONE ? tc_port_name(tc_port) : phy_name(phy));
+	} else if (DISPLAY_VER(display) >= 11) {
+		enum tc_port tc_port = intel_port_to_tc(display, port);
+
+		seq_buf_printf(s, "DDI %c%s/PHY %s%c",
+			       port_name(port),
+			       port >= PORT_C ? " (TC)" : "",
+			       tc_port != TC_PORT_NONE ? "TC" : "",
+			       tc_port != TC_PORT_NONE ? tc_port_name(tc_port) : phy_name(phy));
+	} else {
+		seq_buf_printf(s, "DDI %c/PHY %c", port_name(port),  phy_name(phy));
+	}
+
+	drm_WARN_ON(display->drm, seq_buf_has_overflowed(s));
+
+	return seq_buf_str(s);
+}
+
 void intel_ddi_init(struct intel_display *display,
 		    const struct intel_bios_encoder_data *devdata)
 {
 	struct intel_digital_port *dig_port;
 	struct intel_encoder *encoder;
+	DECLARE_SEQ_BUF(encoder_name, 20);
 	bool init_hdmi, init_dp;
 	enum port port;
 	enum phy phy;
@@ -5149,52 +5185,19 @@ void intel_ddi_init(struct intel_display *display,
 			    phy_name(phy));
 	}
 
-	dig_port = kzalloc(sizeof(*dig_port), GFP_KERNEL);
+	dig_port = intel_dig_port_alloc();
 	if (!dig_port)
 		return;
 
-	dig_port->aux_ch = AUX_CH_NONE;
-
 	encoder = &dig_port->base;
 	encoder->devdata = devdata;
 
-	if (DISPLAY_VER(display) >= 13 && port >= PORT_D_XELPD) {
-		drm_encoder_init(display->drm, &encoder->base, &intel_ddi_funcs,
-				 DRM_MODE_ENCODER_TMDS,
-				 "DDI %c/PHY %c",
-				 port_name(port - PORT_D_XELPD + PORT_D),
-				 phy_name(phy));
-	} else if (DISPLAY_VER(display) >= 12) {
-		enum tc_port tc_port = intel_port_to_tc(display, port);
-
-		drm_encoder_init(display->drm, &encoder->base, &intel_ddi_funcs,
-				 DRM_MODE_ENCODER_TMDS,
-				 "DDI %s%c/PHY %s%c",
-				 port >= PORT_TC1 ? "TC" : "",
-				 port >= PORT_TC1 ? port_tc_name(port) : port_name(port),
-				 tc_port != TC_PORT_NONE ? "TC" : "",
-				 tc_port != TC_PORT_NONE ? tc_port_name(tc_port) : phy_name(phy));
-	} else if (DISPLAY_VER(display) >= 11) {
-		enum tc_port tc_port = intel_port_to_tc(display, port);
-
-		drm_encoder_init(display->drm, &encoder->base, &intel_ddi_funcs,
-				 DRM_MODE_ENCODER_TMDS,
-				 "DDI %c%s/PHY %s%c",
-				 port_name(port),
-				 port >= PORT_C ? " (TC)" : "",
-				 tc_port != TC_PORT_NONE ? "TC" : "",
-				 tc_port != TC_PORT_NONE ? tc_port_name(tc_port) : phy_name(phy));
-	} else {
-		drm_encoder_init(display->drm, &encoder->base, &intel_ddi_funcs,
-				 DRM_MODE_ENCODER_TMDS,
-				 "DDI %c/PHY %c", port_name(port), phy_name(phy));
-	}
+	drm_encoder_init(display->drm, &encoder->base, &intel_ddi_funcs,
+			 DRM_MODE_ENCODER_TMDS, "%s",
+			 intel_ddi_encoder_name(display, port, phy, &encoder_name));
 
 	intel_encoder_link_check_init(encoder, intel_ddi_link_check);
 
-	mutex_init(&dig_port->hdcp.mutex);
-	dig_port->hdcp.num_streams = 0;
-
 	encoder->hotplug = intel_ddi_hotplug;
 	encoder->compute_output_type = intel_ddi_compute_output_type;
 	encoder->compute_config = intel_ddi_compute_config;
@@ -5332,7 +5335,6 @@ void intel_ddi_init(struct intel_display *display,
 
 	dig_port->ddi_a_4_lanes = DISPLAY_VER(display) < 11 && ddi_buf_ctl & DDI_A_4_LANES;
 
-	dig_port->dp.output_reg = INVALID_MMIO_REG;
 	dig_port->max_lanes = intel_ddi_max_lanes(dig_port);
 
 	if (need_aux_ch(encoder, init_dp)) {