Merge tag 'drm-next-2024-03-13' of https://gitlab.freedesktop.org/drm/kernel

Pull drm updates from Dave Airlie:
 "Highlights are usual, more AMD IP blocks for future hw, i915/xe
  changes, Displayport tunnelling support for i915, msm YUV over DP
  changes, new tests for ttm, but its mostly a lot of stuff all over the
  place from lots of people.

  core:
   - EDID cleanups
   - scheduler error handling fixes
   - managed: add drmm_release_action() with tests
   - add ratelimited drm debug print
   - DPCD PSR early transport macro
   - DP tunneling and bandwidth allocation helpers
   - remove built-in edids
   - dp: Avoid AUX transfers on powered-down displays
   - dp: Add VSC SDP helpers

  cross drivers:
   - use new drm print helpers
   - switch to ->read_edid callback
   - gem: add stats for shared buffers plus updates to amdgpu, i915, xe

  syncobj:
   - fixes to waiting and sleeping

  ttm:
   - add tests
   - fix errno codes
   - simply busy-placement handling
   - fix page decryption

  media:
   - tc358743: fix v4l device registration

  video:
   - move all kernel parameters for video behind CONFIG_VIDEO

  sound:
   - remove <drm/drm_edid.h> include from header

  ci:
   - add tests for msm
   - fix apq8016 runner

  efifb:
   - use copy of global screen_info state

  vesafb:
   - use copy of global screen_info state

  simplefb:
   - fix logging

  bridge:
   - ite-6505: fix DP link-training bug
   - samsung-dsim: fix error checking in probe
   - samsung-dsim: add bsh-smm-s2/pro boards
   - tc358767: fix regmap usage
   - imx: add i.MX8MP HDMI PVI plus DT bindings
   - imx: add i.MX8MP HDMI TX plus DT bindings
   - sii902x: fix probing and unregistration
   - tc358767: limit pixel PLL input range
   - switch to new drm_bridge_read_edid() interface

  panel:
   - ltk050h3146w: error-handling fixes
   - panel-edp: support delay between power-on and enable; use put_sync
     in unprepare; support Mediatek MT8173 Chromebooks, BOE NV116WHM-N49
     V8.0, BOE NV122WUM-N41, CSO MNC207QS1-1 plus DT bindings
   - panel-lvds: support EDT ETML0700Z9NDHA plus DT bindings
   - panel-novatek: FRIDA FRD400B25025-A-CTK plus DT bindings
   - add BOE TH101MB31IG002-28A plus DT bindings
   - add EDT ETML1010G3DRA plus DT bindings
   - add Novatek NT36672E LCD DSI plus DT bindings
   - nt36523: support 120Hz timings, fix includes
   - simple: fix display timings on RK32FN48H
   - visionox-vtdr6130: fix initialization
   - add Powkiddy RGB10MAX3 plus DT bindings
   - st7703: support panel rotation plus DT bindings
   - add Himax HX83112A plus DT bindings
   - ltk500hd1829: add support for ltk101b4029w and admatec 9904370
   - simple: add BOE BP082WX1-100 8.2" panel plus DT bindungs

  panel-orientation-quirks:
   - GPD Win Mini

  amdgpu:
   - Validate DMABuf imports in compute VMs
   - Add RAS ACA framework
   - PSP 13 fixes
   - Misc code cleanups
   - Replay fixes
   - Atom interpretor PS, WS bounds checking
   - DML2 fixes
   - Audio fixes
   - DCN 3.5 Z state fixes
   - Remove deprecated ida_simple usage
   - UBSAN fixes
   - RAS fixes
   - Enable seq64 infrastructure
   - DC color block enablement
   - Documentation updates
   - DC documentation updates
   - DMCUB updates
   - ATHUB 4.1 support
   - LSDMA 7.0 support
   - JPEG DPG support
   - IH 7.0 support
   - HDP 7.0 support
   - VCN 5.0 support
   - SMU 13.0.6 updates
   - NBIO 7.11 updates
   - SDMA 6.1 updates
   - MMHUB 3.3 updates
   - DCN 3.5.1 support
   - NBIF 6.3.1 support
   - VPE 6.1.1 support

  amdkfd:
   - Validate DMABuf imports in compute VMs
   - SVM fixes
   - Trap handler updates and enhancements
   - Fix cache size reporting
   - Relocate the trap handler

  radeon:
   - Atom interpretor PS, WS bounds checking
   - Misc code cleanups

  xe:
   - new query for GuC submission version
   - Remove unused persistent exec_queues
   - Add vram frequency sysfs attributes
   - Add the flag XE_VM_BIND_FLAG_DUMPABLE
   - Drop pre-production workarounds
   - Drop kunit tests for unsupported platforms
   - Start pumbling SR-IOV support with memory based interrupts for VF
   - Allow to map BO in GGTT with PAT index corresponding to XE_CACHE_UC
     to work with memory based interrupts
   - Add GuC Doorbells Manager as prep work SR-IOV
   - Implement additional workarounds for xe2 and MTL
   - Program a few registers according to perfomance guide spec for Xe2
   - Fix remaining 32b build issues and enable it back
   - Fix build with CONFIG_DEBUG_FS=n
   - Fix warnings from GuC ABI headers
   - Introduce Relay Communication for SR-IOV for VF <-> GuC <-> PF
   - Release mmap mappings on rpm suspend
   - Disable mid-thread preemption when not properly supported by
     hardware
   - Fix xe_exec by reserving extra fence slot for CPU bind
   - Fix xe_exec with full long running exec queue
   - Canonicalize addresses where needed for Xe2 and add to devcoredum
   - Toggle USM support for Xe2
   - Only allow 1 ufence per exec / bind IOCTL
   - Add GuC firmware loading for Lunar Lake
   - Add XE_VMA_PTE_64K VMA flag

  i915:
   - Add more ADL-N PCI IDs
   - Enable fastboot also on older platforms
   - Early transport for panel replay and PSR
   - New ARL PCI IDs
   - DP TPS4 PHY test pattern support
   - Unify and improve VSC SDP for PSR and non-PSR cases
   - Refactor memory regions and improve debug logging
   - Rework global state serialization
   - Remove unused CDCLK divider fields
   - Unify HDCP connector logging format
   - Use display instead of graphics version in display code
   - Move VBT and opregion debugfs next to the implementation
   - Abstract opregion interface, use opaque type
   - MTL fixes
   - HPD handling fixes
   - Add GuC submission interface version query
   - Atomically invalidate userptr on mmu-notifier
   - Update handling of MMIO triggered reports
   - Don't make assumptions about intel_wakeref_t type
   - Extend driver code of Xe_LPG to Xe_LPG+
   - Add flex arrays to struct i915_syncmap
   - Allow for very slow HuC loading
   - DP tunneling and bandwidth allocation support

  msm:
   - Correct bindings for MSM8976 and SM8650 platforms
   - Start migration of MDP5 platforms to DPU driver
   - X1E80100 MDSS support
   - DPU:
      - Improve DSC allocation, fixing several important corner cases
      - Add support for SDM630/SDM660 platforms
      - Simplify dpu_encoder_phys_ops
      - Apply fixes targeting DSC support with a single DSC encoder
      - Apply fixes for HCTL_EN timing configuration
      - X1E80100 support
      - Add support for YUV420 over DP
   - GPU:
      - fix sc7180 UBWC config
      - fix a7xx LLC config
      - new gpu support: a305B, a750, a702
      - machine support: SM7150 (different power levels than other a618)
      - a7xx devcoredump support

  habanalabs:
   - configure IRQ affinity according to NUMA node
   - move HBM MMU page tables inside the HBM
   - improve device reset
   - check extended PCIe errors

  ivpu:
   - updates to firmware API
   - refactor BO allocation

  imx:
   - use devm_ functions during init

  hisilicon:
   - fix EDID includes

  mgag200:
   - improve ioremap usage
   - convert to struct drm_edid
   - Work around PCI write bursts

  nouveau:
   - disp: use kmemdup()
   - fix EDID includes
   - documentation fixes

  qaic:
   - fixes to BO handling
   - make use of DRM managed release
   - fix order of remove operations

  rockchip:
   - analogix_dp: get encoder port from DT
   - inno_hdmi: support HDMI for RK3128
   - lvds: error-handling fixes

  ssd130x:
   - support SSD133x plus DT bindings

  tegra:
   - fix error handling

  tilcdc:
   - make use of DRM managed release

  v3d:
   - show memory stats in debugfs
   - Support display MMU page size

  vc4:
   - fix error handling in plane prepare_fb
   - fix framebuffer test in plane helpers

  virtio:
   - add venus capset defines

  vkms:
   - fix OOB access when programming the LUT
   - Kconfig improvements

  vmwgfx:
   - unmap surface before changing plane state
   - fix memory leak in error handling
   - documentation fixes
   - list command SVGA_3D_CMD_DEFINE_GB_SURFACE_V4 as invalid
   - fix null-pointer deref in execbuf
   - refactor display-mode probing
   - fix fencing for creating cursor MOBs
   - fix cursor-memory lifetime

  xlnx:
   - fix live video input for ZynqMP DPSUB

  lima:
   - fix memory leak

  loongson:
   - fail if no VRAM present

  meson:
   - switch to new drm_bridge_read_edid() interface

  renesas:
   - add RZ/G2L DU support plus DT bindings

  mxsfb:
   - Use managed mode config

  sun4i:
   - HDMI: updates to atomic mode setting

  mediatek:
   - Add display driver for MT8188 VDOSYS1
   - DSI driver cleanups
   - Filter modes according to hardware capability
   - Fix a null pointer crash in mtk_drm_crtc_finish_page_flip

  etnaviv:
   - enhancements for NPU and MRT support"

* tag 'drm-next-2024-03-13' of https://gitlab.freedesktop.org/drm/kernel: (1420 commits)
  drm/amd/display: Removed redundant @ symbol to fix kernel-doc warnings in -next repo
  drm/amd/pm: wait for completion of the EnableGfxImu message
  drm/amdgpu/soc21: add mode2 asic reset for SMU IP v14.0.1
  drm/amdgpu: add smu 14.0.1 support
  drm/amdgpu: add VPE 6.1.1 discovery support
  drm/amdgpu/vpe: add VPE 6.1.1 support
  drm/amdgpu/vpe: don't emit cond exec command under collaborate mode
  drm/amdgpu/vpe: add collaborate mode support for VPE
  drm/amdgpu/vpe: add PRED_EXE and COLLAB_SYNC OPCODE
  drm/amdgpu/vpe: add multi instance VPE support
  drm/amdgpu/discovery: add nbif v6_3_1 ip block
  drm/amdgpu: Add nbif v6_3_1 ip block support
  drm/amdgpu: Add pcie v6_1_0 ip headers (v5)
  drm/amdgpu: Add nbif v6_3_1 ip headers (v5)
  arch/powerpc: Remove <linux/fb.h> from backlight code
  macintosh/via-pmu-backlight: Include <linux/backlight.h>
  fbdev/chipsfb: Include <linux/backlight.h>
  drm/etnaviv: Restore some id values
  drm/amdkfd: make kfd_class constant
  drm/amdgpu: add ring timeout information in devcoredump
  ...

20 files changed, 605 insertions, 174 deletions

diff --git a/include/drm/display/drm_dp.h b/include/drm/display/drm_dp.h
index 3731828825bd..4891bd916d26 100644
--- a/include/drm/display/drm_dp.h
+++ b/include/drm/display/drm_dp.h
@@ -718,6 +718,7 @@
 # define DP_PSR_SU_REGION_SCANLINE_CAPTURE	BIT(4) /* eDP 1.4a */
 # define DP_PSR_IRQ_HPD_WITH_CRC_ERRORS		BIT(5) /* eDP 1.4a */
 # define DP_PSR_ENABLE_PSR2			BIT(6) /* eDP 1.4a */
+# define DP_PSR_ENABLE_SU_REGION_ET             BIT(7) /* eDP 1.5 */
 
 #define DP_ADAPTER_CTRL			    0x1a0
 # define DP_ADAPTER_CTRL_FORCE_LOAD_SENSE   (1 << 0)
@@ -1080,6 +1081,7 @@
 # define STREAM_STATUS_CHANGED               (1 << 2)
 # define HDMI_LINK_STATUS_CHANGED            (1 << 3)
 # define CONNECTED_OFF_ENTRY_REQUESTED       (1 << 4)
+# define DP_TUNNELING_IRQ                    (1 << 5)
 
 #define DP_PSR_ERROR_STATUS                 0x2006  /* XXX 1.2? */
 # define DP_PSR_LINK_CRC_ERROR              (1 << 0)
@@ -1381,6 +1383,66 @@
 #define DP_HDCP_2_2_REG_STREAM_TYPE_OFFSET	0x69494
 #define DP_HDCP_2_2_REG_DBG_OFFSET		0x69518
 
+/* DP-tunneling */
+#define DP_TUNNELING_OUI				0xe0000
+#define  DP_TUNNELING_OUI_BYTES				3
+
+#define DP_TUNNELING_DEV_ID				0xe0003
+#define  DP_TUNNELING_DEV_ID_BYTES			6
+
+#define DP_TUNNELING_HW_REV				0xe0009
+#define  DP_TUNNELING_HW_REV_MAJOR_SHIFT		4
+#define  DP_TUNNELING_HW_REV_MAJOR_MASK			(0xf << DP_TUNNELING_HW_REV_MAJOR_SHIFT)
+#define  DP_TUNNELING_HW_REV_MINOR_SHIFT		0
+#define  DP_TUNNELING_HW_REV_MINOR_MASK			(0xf << DP_TUNNELING_HW_REV_MINOR_SHIFT)
+
+#define DP_TUNNELING_SW_REV_MAJOR			0xe000a
+#define DP_TUNNELING_SW_REV_MINOR			0xe000b
+
+#define DP_TUNNELING_CAPABILITIES			0xe000d
+#define  DP_IN_BW_ALLOCATION_MODE_SUPPORT		(1 << 7)
+#define  DP_PANEL_REPLAY_OPTIMIZATION_SUPPORT		(1 << 6)
+#define  DP_TUNNELING_SUPPORT				(1 << 0)
+
+#define DP_IN_ADAPTER_INFO				0xe000e
+#define  DP_IN_ADAPTER_NUMBER_BITS			7
+#define  DP_IN_ADAPTER_NUMBER_MASK			((1 << DP_IN_ADAPTER_NUMBER_BITS) - 1)
+
+#define DP_USB4_DRIVER_ID				0xe000f
+#define  DP_USB4_DRIVER_ID_BITS				4
+#define  DP_USB4_DRIVER_ID_MASK				((1 << DP_USB4_DRIVER_ID_BITS) - 1)
+
+#define DP_USB4_DRIVER_BW_CAPABILITY			0xe0020
+#define  DP_USB4_DRIVER_BW_ALLOCATION_MODE_SUPPORT	(1 << 7)
+
+#define DP_IN_ADAPTER_TUNNEL_INFORMATION		0xe0021
+#define  DP_GROUP_ID_BITS				3
+#define  DP_GROUP_ID_MASK				((1 << DP_GROUP_ID_BITS) - 1)
+
+#define DP_BW_GRANULARITY				0xe0022
+#define  DP_BW_GRANULARITY_MASK				0x3
+
+#define DP_ESTIMATED_BW					0xe0023
+#define DP_ALLOCATED_BW					0xe0024
+
+#define DP_TUNNELING_STATUS				0xe0025
+#define  DP_BW_ALLOCATION_CAPABILITY_CHANGED		(1 << 3)
+#define  DP_ESTIMATED_BW_CHANGED			(1 << 2)
+#define  DP_BW_REQUEST_SUCCEEDED			(1 << 1)
+#define  DP_BW_REQUEST_FAILED				(1 << 0)
+
+#define DP_TUNNELING_MAX_LINK_RATE			0xe0028
+
+#define DP_TUNNELING_MAX_LANE_COUNT			0xe0029
+#define  DP_TUNNELING_MAX_LANE_COUNT_MASK		0x1f
+
+#define DP_DPTX_BW_ALLOCATION_MODE_CONTROL		0xe0030
+#define  DP_DISPLAY_DRIVER_BW_ALLOCATION_MODE_ENABLE	(1 << 7)
+#define  DP_UNMASK_BW_ALLOCATION_IRQ			(1 << 6)
+
+#define DP_REQUEST_BW					0xe0031
+#define  MAX_DP_REQUEST_BW				255
+
 /* LTTPR: Link Training (LT)-tunable PHY Repeaters */
 #define DP_LT_TUNABLE_PHY_REPEATER_FIELD_DATA_STRUCTURE_REV 0xf0000 /* 1.3 */
 #define DP_MAX_LINK_RATE_PHY_REPEATER			    0xf0001 /* 1.4a */
diff --git a/include/drm/display/drm_dp_helper.h b/include/drm/display/drm_dp_helper.h
index 863b2e7add29..a62fcd051d4d 100644
--- a/include/drm/display/drm_dp_helper.h
+++ b/include/drm/display/drm_dp_helper.h
@@ -98,8 +98,9 @@ struct drm_dp_vsc_sdp {
 	enum dp_content_type content_type;
 };
 
-void drm_dp_vsc_sdp_log(const char *level, struct device *dev,
-			const struct drm_dp_vsc_sdp *vsc);
+void drm_dp_vsc_sdp_log(struct drm_printer *p, const struct drm_dp_vsc_sdp *vsc);
+
+bool drm_dp_vsc_sdp_supported(struct drm_dp_aux *aux, const u8 dpcd[DP_RECEIVER_CAP_SIZE]);
 
 int drm_dp_psr_setup_time(const u8 psr_cap[EDP_PSR_RECEIVER_CAP_SIZE]);
 
@@ -463,9 +464,15 @@ struct drm_dp_aux {
 	 * @is_remote: Is this AUX CH actually using sideband messaging.
 	 */
 	bool is_remote;
+
+	/**
+	 * @powered_down: If true then the remote endpoint is powered down.
+	 */
+	bool powered_down;
 };
 
 int drm_dp_dpcd_probe(struct drm_dp_aux *aux, unsigned int offset);
+void drm_dp_dpcd_set_powered(struct drm_dp_aux *aux, bool powered);
 ssize_t drm_dp_dpcd_read(struct drm_dp_aux *aux, unsigned int offset,
 			 void *buffer, size_t size);
 ssize_t drm_dp_dpcd_write(struct drm_dp_aux *aux, unsigned int offset,
@@ -812,5 +819,8 @@ int drm_dp_bw_overhead(int lane_count, int hactive,
 		       int dsc_slice_count,
 		       int bpp_x16, unsigned long flags);
 int drm_dp_bw_channel_coding_efficiency(bool is_uhbr);
+int drm_dp_max_dprx_data_rate(int max_link_rate, int max_lanes);
+
+ssize_t drm_dp_vsc_sdp_pack(const struct drm_dp_vsc_sdp *vsc, struct dp_sdp *sdp);
 
 #endif /* _DRM_DP_HELPER_H_ */
diff --git a/include/drm/display/drm_dp_tunnel.h b/include/drm/display/drm_dp_tunnel.h
new file mode 100644
index 000000000000..87212c847915
--- /dev/null
+++ b/include/drm/display/drm_dp_tunnel.h
@@ -0,0 +1,248 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#ifndef __DRM_DP_TUNNEL_H__
+#define __DRM_DP_TUNNEL_H__
+
+#include <linux/err.h>
+#include <linux/errno.h>
+#include <linux/types.h>
+
+struct drm_dp_aux;
+
+struct drm_device;
+
+struct drm_atomic_state;
+struct drm_dp_tunnel_mgr;
+struct drm_dp_tunnel_state;
+
+struct ref_tracker;
+
+struct drm_dp_tunnel_ref {
+	struct drm_dp_tunnel *tunnel;
+	struct ref_tracker *tracker;
+};
+
+#ifdef CONFIG_DRM_DISPLAY_DP_TUNNEL
+
+struct drm_dp_tunnel *
+drm_dp_tunnel_get(struct drm_dp_tunnel *tunnel, struct ref_tracker **tracker);
+
+void
+drm_dp_tunnel_put(struct drm_dp_tunnel *tunnel, struct ref_tracker **tracker);
+
+static inline void drm_dp_tunnel_ref_get(struct drm_dp_tunnel *tunnel,
+					 struct drm_dp_tunnel_ref *tunnel_ref)
+{
+	tunnel_ref->tunnel = drm_dp_tunnel_get(tunnel, &tunnel_ref->tracker);
+}
+
+static inline void drm_dp_tunnel_ref_put(struct drm_dp_tunnel_ref *tunnel_ref)
+{
+	drm_dp_tunnel_put(tunnel_ref->tunnel, &tunnel_ref->tracker);
+	tunnel_ref->tunnel = NULL;
+}
+
+struct drm_dp_tunnel *
+drm_dp_tunnel_detect(struct drm_dp_tunnel_mgr *mgr,
+		     struct drm_dp_aux *aux);
+int drm_dp_tunnel_destroy(struct drm_dp_tunnel *tunnel);
+
+int drm_dp_tunnel_enable_bw_alloc(struct drm_dp_tunnel *tunnel);
+int drm_dp_tunnel_disable_bw_alloc(struct drm_dp_tunnel *tunnel);
+bool drm_dp_tunnel_bw_alloc_is_enabled(const struct drm_dp_tunnel *tunnel);
+int drm_dp_tunnel_alloc_bw(struct drm_dp_tunnel *tunnel, int bw);
+int drm_dp_tunnel_get_allocated_bw(struct drm_dp_tunnel *tunnel);
+int drm_dp_tunnel_update_state(struct drm_dp_tunnel *tunnel);
+
+void drm_dp_tunnel_set_io_error(struct drm_dp_tunnel *tunnel);
+
+int drm_dp_tunnel_handle_irq(struct drm_dp_tunnel_mgr *mgr,
+			     struct drm_dp_aux *aux);
+
+int drm_dp_tunnel_max_dprx_rate(const struct drm_dp_tunnel *tunnel);
+int drm_dp_tunnel_max_dprx_lane_count(const struct drm_dp_tunnel *tunnel);
+int drm_dp_tunnel_available_bw(const struct drm_dp_tunnel *tunnel);
+
+const char *drm_dp_tunnel_name(const struct drm_dp_tunnel *tunnel);
+
+struct drm_dp_tunnel_state *
+drm_dp_tunnel_atomic_get_state(struct drm_atomic_state *state,
+			       struct drm_dp_tunnel *tunnel);
+
+struct drm_dp_tunnel_state *
+drm_dp_tunnel_atomic_get_old_state(struct drm_atomic_state *state,
+				   const struct drm_dp_tunnel *tunnel);
+
+struct drm_dp_tunnel_state *
+drm_dp_tunnel_atomic_get_new_state(struct drm_atomic_state *state,
+				   const struct drm_dp_tunnel *tunnel);
+
+int drm_dp_tunnel_atomic_set_stream_bw(struct drm_atomic_state *state,
+				       struct drm_dp_tunnel *tunnel,
+				       u8 stream_id, int bw);
+int drm_dp_tunnel_atomic_get_group_streams_in_state(struct drm_atomic_state *state,
+						    const struct drm_dp_tunnel *tunnel,
+						    u32 *stream_mask);
+
+int drm_dp_tunnel_atomic_check_stream_bws(struct drm_atomic_state *state,
+					  u32 *failed_stream_mask);
+
+int drm_dp_tunnel_atomic_get_required_bw(const struct drm_dp_tunnel_state *tunnel_state);
+
+struct drm_dp_tunnel_mgr *
+drm_dp_tunnel_mgr_create(struct drm_device *dev, int max_group_count);
+void drm_dp_tunnel_mgr_destroy(struct drm_dp_tunnel_mgr *mgr);
+
+#else
+
+static inline struct drm_dp_tunnel *
+drm_dp_tunnel_get(struct drm_dp_tunnel *tunnel, struct ref_tracker **tracker)
+{
+	return NULL;
+}
+
+static inline void
+drm_dp_tunnel_put(struct drm_dp_tunnel *tunnel, struct ref_tracker **tracker) {}
+
+static inline void drm_dp_tunnel_ref_get(struct drm_dp_tunnel *tunnel,
+					 struct drm_dp_tunnel_ref *tunnel_ref) {}
+
+static inline void drm_dp_tunnel_ref_put(struct drm_dp_tunnel_ref *tunnel_ref) {}
+
+static inline struct drm_dp_tunnel *
+drm_dp_tunnel_detect(struct drm_dp_tunnel_mgr *mgr,
+		     struct drm_dp_aux *aux)
+{
+	return ERR_PTR(-EOPNOTSUPP);
+}
+
+static inline int
+drm_dp_tunnel_destroy(struct drm_dp_tunnel *tunnel)
+{
+	return 0;
+}
+
+static inline int drm_dp_tunnel_enable_bw_alloc(struct drm_dp_tunnel *tunnel)
+{
+	return -EOPNOTSUPP;
+}
+
+static inline int drm_dp_tunnel_disable_bw_alloc(struct drm_dp_tunnel *tunnel)
+{
+	return -EOPNOTSUPP;
+}
+
+static inline bool drm_dp_tunnel_bw_alloc_is_enabled(const struct drm_dp_tunnel *tunnel)
+{
+	return false;
+}
+
+static inline int
+drm_dp_tunnel_alloc_bw(struct drm_dp_tunnel *tunnel, int bw)
+{
+	return -EOPNOTSUPP;
+}
+
+static inline int
+drm_dp_tunnel_get_allocated_bw(struct drm_dp_tunnel *tunnel)
+{
+	return -1;
+}
+
+static inline int
+drm_dp_tunnel_update_state(struct drm_dp_tunnel *tunnel)
+{
+	return -EOPNOTSUPP;
+}
+
+static inline void drm_dp_tunnel_set_io_error(struct drm_dp_tunnel *tunnel) {}
+
+static inline int
+drm_dp_tunnel_handle_irq(struct drm_dp_tunnel_mgr *mgr,
+			 struct drm_dp_aux *aux)
+{
+	return -EOPNOTSUPP;
+}
+
+static inline int
+drm_dp_tunnel_max_dprx_rate(const struct drm_dp_tunnel *tunnel)
+{
+	return 0;
+}
+
+static inline int
+drm_dp_tunnel_max_dprx_lane_count(const struct drm_dp_tunnel *tunnel)
+{
+	return 0;
+}
+
+static inline int
+drm_dp_tunnel_available_bw(const struct drm_dp_tunnel *tunnel)
+{
+	return -1;
+}
+
+static inline const char *
+drm_dp_tunnel_name(const struct drm_dp_tunnel *tunnel)
+{
+	return NULL;
+}
+
+static inline struct drm_dp_tunnel_state *
+drm_dp_tunnel_atomic_get_state(struct drm_atomic_state *state,
+			       struct drm_dp_tunnel *tunnel)
+{
+	return ERR_PTR(-EOPNOTSUPP);
+}
+
+static inline struct drm_dp_tunnel_state *
+drm_dp_tunnel_atomic_get_new_state(struct drm_atomic_state *state,
+				   const struct drm_dp_tunnel *tunnel)
+{
+	return ERR_PTR(-EOPNOTSUPP);
+}
+
+static inline int
+drm_dp_tunnel_atomic_set_stream_bw(struct drm_atomic_state *state,
+				   struct drm_dp_tunnel *tunnel,
+				   u8 stream_id, int bw)
+{
+	return -EOPNOTSUPP;
+}
+
+static inline int
+drm_dp_tunnel_atomic_get_group_streams_in_state(struct drm_atomic_state *state,
+						const struct drm_dp_tunnel *tunnel,
+						u32 *stream_mask)
+{
+	return -EOPNOTSUPP;
+}
+
+static inline int
+drm_dp_tunnel_atomic_check_stream_bws(struct drm_atomic_state *state,
+				      u32 *failed_stream_mask)
+{
+	return -EOPNOTSUPP;
+}
+
+static inline int
+drm_dp_tunnel_atomic_get_required_bw(const struct drm_dp_tunnel_state *tunnel_state)
+{
+	return 0;
+}
+
+static inline struct drm_dp_tunnel_mgr *
+drm_dp_tunnel_mgr_create(struct drm_device *dev, int max_group_count)
+{
+	return ERR_PTR(-EOPNOTSUPP);
+}
+
+static inline
+void drm_dp_tunnel_mgr_destroy(struct drm_dp_tunnel_mgr *mgr) {}
+
+#endif /* CONFIG_DRM_DISPLAY_DP_TUNNEL */
+
+#endif /* __DRM_DP_TUNNEL_H__ */
diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h
index cf8e1220a4ac..4d7f4c5f2001 100644
--- a/include/drm/drm_atomic.h
+++ b/include/drm/drm_atomic.h
@@ -346,25 +346,29 @@ struct __drm_private_objs_state {
 };
 
 /**
- * struct drm_atomic_state - the global state object for atomic updates
- * @ref: count of all references to this state (will not be freed until zero)
- * @dev: parent DRM device
- * @async_update: hint for asynchronous plane update
- * @planes: pointer to array of structures with per-plane data
- * @crtcs: pointer to array of CRTC pointers
- * @num_connector: size of the @connectors and @connector_states arrays
- * @connectors: pointer to array of structures with per-connector data
- * @num_private_objs: size of the @private_objs array
- * @private_objs: pointer to array of private object pointers
- * @acquire_ctx: acquire context for this atomic modeset state update
+ * struct drm_atomic_state - Atomic commit structure
+ *
+ * This structure is the kernel counterpart of @drm_mode_atomic and represents
+ * an atomic commit that transitions from an old to a new display state. It
+ * contains all the objects affected by the atomic commit and both the new
+ * state structures and pointers to the old state structures for
+ * these.
  *
  * States are added to an atomic update by calling drm_atomic_get_crtc_state(),
  * drm_atomic_get_plane_state(), drm_atomic_get_connector_state(), or for
  * private state structures, drm_atomic_get_private_obj_state().
  */
 struct drm_atomic_state {
+	/**
+	 * @ref:
+	 *
+	 * Count of all references to this update (will not be freed until zero).
+	 */
 	struct kref ref;
 
+	/**
+	 * @dev: Parent DRM Device.
+	 */
 	struct drm_device *dev;
 
 	/**
@@ -388,7 +392,12 @@ struct drm_atomic_state {
 	 * flag are not allowed.
 	 */
 	bool legacy_cursor_update : 1;
+
+	/**
+	 * @async_update: hint for asynchronous plane update
+	 */
 	bool async_update : 1;
+
 	/**
 	 * @duplicated:
 	 *
@@ -398,13 +407,52 @@ struct drm_atomic_state {
 	 * states.
 	 */
 	bool duplicated : 1;
+
+	/**
+	 * @planes:
+	 *
+	 * Pointer to array of @drm_plane and @drm_plane_state part of this
+	 * update.
+	 */
 	struct __drm_planes_state *planes;
+
+	/**
+	 * @crtcs:
+	 *
+	 * Pointer to array of @drm_crtc and @drm_crtc_state part of this
+	 * update.
+	 */
 	struct __drm_crtcs_state *crtcs;
+
+	/**
+	 * @num_connector: size of the @connectors array
+	 */
 	int num_connector;
+
+	/**
+	 * @connectors:
+	 *
+	 * Pointer to array of @drm_connector and @drm_connector_state part of
+	 * this update.
+	 */
 	struct __drm_connnectors_state *connectors;
+
+	/**
+	 * @num_private_objs: size of the @private_objs array
+	 */
 	int num_private_objs;
+
+	/**
+	 * @private_objs:
+	 *
+	 * Pointer to array of @drm_private_obj and @drm_private_obj_state part
+	 * of this update.
+	 */
 	struct __drm_private_objs_state *private_objs;
 
+	/**
+	 * @acquire_ctx: acquire context for this atomic modeset state update
+	 */
 	struct drm_modeset_acquire_ctx *acquire_ctx;
 
 	/**
diff --git a/include/drm/drm_bridge.h b/include/drm/drm_bridge.h
index e39da5807ba7..3606e1a7f965 100644
--- a/include/drm/drm_bridge.h
+++ b/include/drm/drm_bridge.h
@@ -107,7 +107,7 @@ struct drm_bridge_funcs {
 	 * Since this function is both called from the check phase of an atomic
 	 * commit, and the mode validation in the probe paths it is not allowed
 	 * to look at anything else but the passed-in mode, and validate it
-	 * against configuration-invariant hardward constraints. Any further
+	 * against configuration-invariant hardware constraints. Any further
 	 * limits which depend upon the configuration can only be checked in
 	 * @mode_fixup.
 	 *
@@ -558,11 +558,11 @@ struct drm_bridge_funcs {
 			 struct drm_connector *connector);
 
 	/**
-	 * @get_edid:
+	 * @edid_read:
 	 *
-	 * Read and parse the EDID data of the connected display.
+	 * Read the EDID data of the connected display.
 	 *
-	 * The @get_edid callback is the preferred way of reporting mode
+	 * The @edid_read callback is the preferred way of reporting mode
 	 * information for a display connected to the bridge output. Bridges
 	 * that support reading EDID shall implement this callback and leave
 	 * the @get_modes callback unimplemented.
@@ -575,17 +575,18 @@ struct drm_bridge_funcs {
 	 * DRM_BRIDGE_OP_EDID flag in their &drm_bridge->ops.
 	 *
 	 * The connector parameter shall be used for the sole purpose of EDID
-	 * retrieval and parsing, and shall not be stored internally by bridge
-	 * drivers for future usage.
+	 * retrieval, and shall not be stored internally by bridge drivers for
+	 * future usage.
 	 *
 	 * RETURNS:
 	 *
-	 * An edid structure newly allocated with kmalloc() (or similar) on
-	 * success, or NULL otherwise. The caller is responsible for freeing
-	 * the returned edid structure with kfree().
+	 * An edid structure newly allocated with drm_edid_alloc() or returned
+	 * from drm_edid_read() family of functions on success, or NULL
+	 * otherwise. The caller is responsible for freeing the returned edid
+	 * structure with drm_edid_free().
 	 */
-	struct edid *(*get_edid)(struct drm_bridge *bridge,
-				 struct drm_connector *connector);
+	const struct drm_edid *(*edid_read)(struct drm_bridge *bridge,
+					    struct drm_connector *connector);
 
 	/**
 	 * @hpd_notify:
@@ -888,8 +889,8 @@ drm_atomic_helper_bridge_propagate_bus_fmt(struct drm_bridge *bridge,
 enum drm_connector_status drm_bridge_detect(struct drm_bridge *bridge);
 int drm_bridge_get_modes(struct drm_bridge *bridge,
 			 struct drm_connector *connector);
-struct edid *drm_bridge_get_edid(struct drm_bridge *bridge,
-				 struct drm_connector *connector);
+const struct drm_edid *drm_bridge_edid_read(struct drm_bridge *bridge,
+					    struct drm_connector *connector);
 void drm_bridge_hpd_enable(struct drm_bridge *bridge,
 			   void (*cb)(void *data,
 				      enum drm_connector_status status),
diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h
index 518d1b8106c7..7923bc00dc7a 100644
--- a/include/drm/drm_edid.h
+++ b/include/drm/drm_edid.h
@@ -24,11 +24,14 @@
 #define __DRM_EDID_H__
 
 #include <linux/types.h>
-#include <linux/hdmi.h>
-#include <drm/drm_mode.h>
 
+enum hdmi_quantization_range;
+struct drm_connector;
 struct drm_device;
+struct drm_display_mode;
 struct drm_edid;
+struct hdmi_avi_infoframe;
+struct hdmi_vendor_infoframe;
 struct i2c_adapter;
 
 #define EDID_LENGTH 128
@@ -46,7 +49,7 @@ struct est_timings {
 	u8 t1;
 	u8 t2;
 	u8 mfg_rsvd;
-} __attribute__((packed));
+} __packed;
 
 /* 00=16:10, 01=4:3, 10=5:4, 11=16:9 */
 #define EDID_TIMING_ASPECT_SHIFT 6
@@ -59,7 +62,7 @@ struct est_timings {
 struct std_timing {
 	u8 hsize; /* need to multiply by 8 then add 248 */
 	u8 vfreq_aspect;
-} __attribute__((packed));
+} __packed;
 
 #define DRM_EDID_PT_HSYNC_POSITIVE (1 << 1)
 #define DRM_EDID_PT_VSYNC_POSITIVE (1 << 2)
@@ -85,12 +88,12 @@ struct detailed_pixel_timing {
 	u8 hborder;
 	u8 vborder;
 	u8 misc;
-} __attribute__((packed));
+} __packed;
 
 /* If it's not pixel timing, it'll be one of the below */
 struct detailed_data_string {
 	u8 str[13];
-} __attribute__((packed));
+} __packed;
 
 #define DRM_EDID_RANGE_OFFSET_MIN_VFREQ (1 << 0) /* 1.4 */
 #define DRM_EDID_RANGE_OFFSET_MAX_VFREQ (1 << 1) /* 1.4 */
@@ -120,7 +123,7 @@ struct detailed_data_monitor_range {
 			__le16 m;
 			u8 k;
 			u8 j; /* need to divide by 2 */
-		} __attribute__((packed)) gtf2;
+		} __packed gtf2;
 		struct {
 			u8 version;
 			u8 data1; /* high 6 bits: extra clock resolution */
@@ -129,27 +132,27 @@ struct detailed_data_monitor_range {
 			u8 flags; /* preferred aspect and blanking support */
 			u8 supported_scalings;
 			u8 preferred_refresh;
-		} __attribute__((packed)) cvt;
-	} __attribute__((packed)) formula;
-} __attribute__((packed));
+		} __packed cvt;
+	} __packed formula;
+} __packed;
 
 struct detailed_data_wpindex {
 	u8 white_yx_lo; /* Lower 2 bits each */
 	u8 white_x_hi;
 	u8 white_y_hi;
 	u8 gamma; /* need to divide by 100 then add 1 */
-} __attribute__((packed));
+} __packed;
 
 struct detailed_data_color_point {
 	u8 windex1;
 	u8 wpindex1[3];
 	u8 windex2;
 	u8 wpindex2[3];
-} __attribute__((packed));
+} __packed;
 
 struct cvt_timing {
 	u8 code[3];
-} __attribute__((packed));
+} __packed;
 
 struct detailed_non_pixel {
 	u8 pad1;
@@ -163,8 +166,8 @@ struct detailed_non_pixel {
 		struct detailed_data_wpindex color;
 		struct std_timing timings[6];
 		struct cvt_timing cvt[4];
-	} __attribute__((packed)) data;
-} __attribute__((packed));
+	} __packed data;
+} __packed;
 
 #define EDID_DETAIL_EST_TIMINGS 0xf7
 #define EDID_DETAIL_CVT_3BYTE 0xf8
@@ -181,8 +184,8 @@ struct detailed_timing {
 	union {
 		struct detailed_pixel_timing pixel_data;
 		struct detailed_non_pixel other_data;
-	} __attribute__((packed)) data;
-} __attribute__((packed));
+	} __packed data;
+} __packed;
 
 #define DRM_EDID_INPUT_SERRATION_VSYNC (1 << 0)
 #define DRM_EDID_INPUT_SYNC_ON_GREEN   (1 << 1)
@@ -307,7 +310,7 @@ struct edid {
 	u8 extensions;
 	/* Checksum */
 	u8 checksum;
-} __attribute__((packed));
+} __packed;
 
 #define EDID_PRODUCT_ID(e) ((e)->prod_code[0] | ((e)->prod_code[1] << 8))
 
@@ -319,11 +322,6 @@ struct cea_sad {
 	u8 byte2; /* meaning depends on format */
 };
 
-struct drm_encoder;
-struct drm_connector;
-struct drm_connector_state;
-struct drm_display_mode;
-
 int drm_edid_to_sad(const struct edid *edid, struct cea_sad **sads);
 int drm_edid_to_speaker_allocation(const struct edid *edid, u8 **sadb);
 int drm_av_sync_delay(struct drm_connector *connector,
@@ -426,8 +424,6 @@ enum hdmi_quantization_range
 drm_default_rgb_quant_range(const struct drm_display_mode *mode);
 int drm_add_modes_noedid(struct drm_connector *connector,
 			 int hdisplay, int vdisplay);
-void drm_set_preferred_mode(struct drm_connector *connector,
-			    int hpref, int vpref);
 
 int drm_edid_header_is_valid(const void *edid);
 bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid,
diff --git a/include/drm/drm_exec.h b/include/drm/drm_exec.h
index f1a66c048721..aa786b828a0a 100644
--- a/include/drm/drm_exec.h
+++ b/include/drm/drm_exec.h
@@ -18,7 +18,7 @@ struct drm_exec {
 	/**
 	 * @flags: Flags to control locking behavior
 	 */
-	uint32_t		flags;
+	u32                     flags;