Merge tag 'drm-next-2023-08-30' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
 "The drm core grew a new generic gpu virtual address manager, and new
  execution locking helpers. These are used by nouveau now to provide
  uAPI support for the userspace Vulkan driver. AMD had a bunch of new
  IP core support, loads of refactoring around fbdev, but mostly just
  the usual amount of stuff across the board.

  core:
   - fix gfp flags in drmm_kmalloc

  gpuva:
   - add new generic GPU VA manager (for nouveau initially)

  syncobj:
   - add new DRM_IOCTL_SYNCOBJ_EVENTFD ioctl

  dma-buf:
   - acquire resv lock for mmap() in exporters
   - support dma-buf self import automatically
   - docs fixes

  backlight:
   - fix fbdev interactions

  atomic:
   - improve logging

  prime:
   - remove struct gem_prim_mmap plus driver updates

  gem:
   - drm_exec: add locking over multiple GEM objects
   - fix lockdep checking

  fbdev:
   - make fbdev userspace interfaces optional
   - use linux device instead of fbdev device
   - use deferred i/o helper macros in various drivers
   - Make FB core selectable without drivers
   - Remove obsolete flags FBINFO_DEFAULT and FBINFO_FLAG_DEFAULT
   - Add helper macros and Kconfig tokens for DMA-allocated framebuffer

  ttm:
   - support init_on_free
   - swapout fixes

  panel:
   - panel-edp: Support AUO B116XAB01.4
   - Support Visionox R66451 plus DT bindings
   - ld9040:
      - Backlight support
      - magic improved
      - Kconfig fix
   - Convert to of_device_get_match_data()
   - Fix Kconfig dependencies
   - simple:
      - Set bpc value to fix warning
      - Set connector type for AUO T215HVN01
      - Support Innolux G156HCE-L01 plus DT bindings
   - ili9881: Support TDO TL050HDV35 LCD panel plus DT bindings
   - startek: Support KD070FHFID015 MIPI-DSI panel plus DT bindings
   - sitronix-st7789v:
      - Support Inanbo T28CP45TN89 plus DT bindings
      - Support EDT ET028013DMA plus DT bindings
      - Various cleanups
   - edp: Add timings for N140HCA-EAC
   - Allow panels and touchscreens to power sequence together
   - Fix Innolux G156HCE-L01 LVDS clock

  bridge:
   - debugfs for chains support
   - dw-hdmi:
      - Improve support for YUV420 bus format
      - CEC suspend/resume
      - update EDID on HDMI detect
   - dw-mipi-dsi: Fix enable/disable of DSI controller
   - lt9611uxc: Use MODULE_FIRMWARE()
   - ps8640: Remove broken EDID code
   - samsung-dsim: Fix command transfer
   - tc358764:
      - Handle HS/VS polarity
      - Use BIT() macro
      - Various cleanups
   - adv7511: Fix low refresh rate
   - anx7625:
      - Switch to macros instead of hardcoded values
      - locking fixes
   - tc358767: fix hardware delays
   - sitronix-st7789v:
      - Support panel orientation
      - Support rotation property
      - Add support for Jasonic JT240MHQS-HWT-EK-E3 plus DT bindings

  amdgpu:
   - SDMA 6.1.0 support
   - HDP 6.1 support
   - SMUIO 14.0 support
   - PSP 14.0 support
   - IH 6.1 support
   - Lots of checkpatch cleanups
   - GFX 9.4.3 updates
   - Add USB PD and IFWI flashing documentation
   - GPUVM updates
   - RAS fixes
   - DRR fixes
   - FAMS fixes
   - Virtual display fixes
   - Soft IH fixes
   - SMU13 fixes
   - Rework PSP firmware loading for other IPs
   - Kernel doc fixes
   - DCN 3.0.1 fixes
   - LTTPR fixes
   - DP MST fixes
   - DCN 3.1.6 fixes
   - SMU 13.x fixes
   - PSP 13.x fixes
   - SubVP fixes
   - GC 9.4.3 fixes
   - Display bandwidth calculation fixes
   - VCN4 secure submission fixes
   - Allow building DC on RISC-V
   - Add visible FB info to bo_print_info
   - HBR3 fixes
   - GFX9 MCBP fix
   - GMC10 vmhub index fix
   - GMC11 vmhub index fix
   - Create a new doorbell manager
   - SR-IOV fixes
   - initial freesync panel replay support
   - revert zpos properly until igt regression is fixeed
   - use TTM to manage doorbell BAR
   - Expose both current and average power via hwmon if supported

  amdkfd:
   - Cleanup CRIU dma-buf handling
   - Use KIQ to unmap HIQ
   - GFX 9.4.3 debugger updates
   - GFX 9.4.2 debugger fixes
   - Enable cooperative groups fof gfx11
   - SVM fixes
   - Convert older APUs to use dGPU path like newer APUs
   - Drop IOMMUv2 path as it is no longer used
   - TBA fix for aldebaran

  i915:
   - ICL+ DSI modeset sequence
   - HDCP improvements
   - MTL display fixes and cleanups
   - HSW/BDW PSR1 restored
   - Init DDI ports in VBT order
   - General display refactors
   - Start using plane scale factor for relative data rate
   - Use shmem for dpt objects
   - Expose RPS thresholds in sysfs
   - Apply GuC SLPC min frequency softlimit correctly
   - Extend Wa_14015795083 to TGL, RKL, DG1 and ADL
   - Fix a VMA UAF for multi-gt platform
   - Do not use stolen on MTL due to HW bug
   - Check HuC and GuC version compatibility on MTL
   - avoid infinite GPU waits due to premature release of request memory
   - Fixes and updates for GSC memory allocation
   - Display SDVO fixes
   - Take stolen handling out of FBC code
   - Make i915_coherent_map_type GT-centric
   - Simplify shmem_create_from_object map_type

  msm:
   - SM6125 MDSS support
   - DPU: SM6125 DPU support
   - DSI: runtime PM support, burst mode support
   - DSI PHY: SM6125 support in 14nm DSI PHY driver
   - GPU: prepare for a7xx
   - fix a690 firmware
   - disable relocs on a6xx and newer

  radeon:
   - Lots of checkpatch cleanups

  ast:
   - improve device-model detection
   - Represent BMV as virtual connector
   - Report DP connection status

  nouveau:
   - add new exec/bind interface to support Vulkan
   - document some getparam ioctls
   - improve VRAM detection
   - various fixes/cleanups
   - workraound DPCD issues

  ivpu:
   - MMU updates
   - debugfs support
   - Support vpu4

  virtio:
   - add sync object support

  atmel-hlcdc:
   - Support inverted pixclock polarity

  etnaviv:
   - runtime PM cleanups
   - hang handling fixes

  exynos:
   - use fbdev DMA helpers
   - fix possible NULL ptr dereference

  komeda:
   - always attach encoder

  omapdrm:
   - use fbdev DMA helpers
ingenic:
   - kconfig regmap fixes

  loongson:
   - support display controller

  mediatek:
   - Small mtk-dpi cleanups
   - DisplayPort: support eDP and aux-bus
   - Fix coverity issues
   - Fix potential memory leak if vmap() fail

  mgag200:
   - minor fixes

  mxsfb:
   - support disabling overlay planes

  panfrost:
   - fix sync in IRQ handling

  ssd130x:
   - Support per-controller default resolution plus DT bindings
   - Reduce memory-allocation overhead
   - Improve intermediate buffer size computation
   - Fix allocation of temporary buffers
   - Fix pitch computation
   - Fix shadow plane allocation

  tegra:
   - use fbdev DMA helpers
   - Convert to devm_platform_ioremap_resource()
   - support bridge/connector
   - enable PM

  tidss:
   - Support TI AM625 plus DT bindings
   - Implement new connector model plus driver updates

  vkms:
   - improve write back support
   - docs fixes
   - support gamma LUT

  zynqmp-dpsub:
   - misc fixes"

* tag 'drm-next-2023-08-30' of git://anongit.freedesktop.org/drm/drm: (1327 commits)
  drm/gpuva_mgr: remove unused prev pointer in __drm_gpuva_sm_map()
  drm/tests/drm_kunit_helpers: Place correct function name in the comment header
  drm/nouveau: uapi: don't pass NO_PREFETCH flag implicitly
  drm/nouveau: uvmm: fix unset region pointer on remap
  drm/nouveau: sched: avoid job races between entities
  drm/i915: Fix HPD polling, reenabling the output poll work as needed
  drm: Add an HPD poll helper to reschedule the poll work
  drm/i915: Fix TLB-Invalidation seqno store
  drm/ttm/tests: Fix type conversion in ttm_pool_test
  drm/msm/a6xx: Bail out early if setting GPU OOB fails
  drm/msm/a6xx: Move LLC accessors to the common header
  drm/msm/a6xx: Introduce a6xx_llc_read
  drm/ttm/tests: Require MMU when testing
  drm/panel: simple: Fix Innolux G156HCE-L01 LVDS clock
  Revert "Revert "drm/amdgpu/display: change pipe policy for DCN 2.0""
  drm/amdgpu: Add memory vendor information
  drm/amd: flush any delayed gfxoff on suspend entry
  drm/amdgpu: skip fence GFX interrupts disable/enable for S0ix
  drm/amdgpu: Remove gfxoff check in GFX v9.4.3
  drm/amd/pm: Update pci link speed for smu v13.0.6
  ...

21 files changed, 1096 insertions, 108 deletions

diff --git a/include/drm/bridge/dw_hdmi.h b/include/drm/bridge/dw_hdmi.h
index f668e75fbabe..6a46baa0737c 100644
--- a/include/drm/bridge/dw_hdmi.h
+++ b/include/drm/bridge/dw_hdmi.h
@@ -206,4 +206,6 @@ void dw_hdmi_phy_update_hpd(struct dw_hdmi *hdmi, void *data,
 			    bool force, bool disabled, bool rxsense);
 void dw_hdmi_phy_setup_hpd(struct dw_hdmi *hdmi, void *data);
 
+bool dw_hdmi_bus_fmt_is_420(struct dw_hdmi *hdmi);
+
 #endif /* __IMX_HDMI_H__ */
diff --git a/include/drm/drm_bridge.h b/include/drm/drm_bridge.h
index bf964cdfb330..c339fc85fd07 100644
--- a/include/drm/drm_bridge.h
+++ b/include/drm/drm_bridge.h
@@ -36,6 +36,7 @@ struct drm_bridge;
 struct drm_bridge_timings;
 struct drm_connector;
 struct drm_display_info;
+struct drm_minor;
 struct drm_panel;
 struct edid;
 struct i2c_adapter;
@@ -949,4 +950,6 @@ static inline struct drm_bridge *drmm_of_get_bridge(struct drm_device *drm,
 }
 #endif
 
+void drm_bridge_debugfs_init(struct drm_minor *minor);
+
 #endif
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 8e1cbc75143e..8b48a1974da3 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -77,11 +77,6 @@ struct drm_plane_helper_funcs;
  * intended to indicate whether a full modeset is needed, rather than strictly
  * describing what has changed in a commit. See also:
  * drm_atomic_crtc_needs_modeset()
- *
- * WARNING: Transitional helpers (like drm_helper_crtc_mode_set() or
- * drm_helper_crtc_mode_set_base()) do not maintain many of the derived control
- * state like @plane_mask so drivers not converted over to atomic helpers should
- * not rely on these being accurate!
  */
 struct drm_crtc_state {
 	/** @crtc: backpointer to the CRTC */
diff --git a/include/drm/drm_debugfs.h b/include/drm/drm_debugfs.h
index 7616f457ce70..cb2c1956a214 100644
--- a/include/drm/drm_debugfs.h
+++ b/include/drm/drm_debugfs.h
@@ -34,6 +34,22 @@
 
 #include <linux/types.h>
 #include <linux/seq_file.h>
+
+#include <drm/drm_gpuva_mgr.h>
+
+/**
+ * DRM_DEBUGFS_GPUVA_INFO - &drm_info_list entry to dump a GPU VA space
+ * @show: the &drm_info_list's show callback
+ * @data: driver private data
+ *
+ * Drivers should use this macro to define a &drm_info_list entry to provide a
+ * debugfs file for dumping the GPU VA space regions and mappings.
+ *
+ * For each DRM GPU VA space drivers should call drm_debugfs_gpuva_info() from
+ * their @show callback.
+ */
+#define DRM_DEBUGFS_GPUVA_INFO(show, data) {"gpuvas", show, DRIVER_GEM_GPUVA, data}
+
 /**
  * struct drm_info_list - debugfs info list entry
  *
@@ -134,6 +150,9 @@ void drm_debugfs_add_file(struct drm_device *dev, const char *name,
 
 void drm_debugfs_add_files(struct drm_device *dev,
 			   const struct drm_debugfs_info *files, int count);
+
+int drm_debugfs_gpuva_info(struct seq_file *m,
+			   struct drm_gpuva_manager *mgr);
 #else
 static inline void drm_debugfs_create_files(const struct drm_info_list *files,
 					    int count, struct dentry *root,
@@ -155,6 +174,12 @@ static inline void drm_debugfs_add_files(struct drm_device *dev,
 					 const struct drm_debugfs_info *files,
 					 int count)
 {}
+
+static inline int drm_debugfs_gpuva_info(struct seq_file *m,
+					 struct drm_gpuva_manager *mgr)
+{
+	return 0;
+}
 #endif
 
 #endif /* _DRM_DEBUGFS_H_ */
diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h
index 89e2706cac56..9813fa759b75 100644
--- a/include/drm/drm_drv.h
+++ b/include/drm/drm_drv.h
@@ -104,6 +104,12 @@ enum drm_driver_feature {
 	 * acceleration should be handled by two drivers that are connected using auxiliary bus.
 	 */
 	DRIVER_COMPUTE_ACCEL            = BIT(7),
+	/**
+	 * @DRIVER_GEM_GPUVA:
+	 *
+	 * Driver supports user defined GPU VA bindings for GEM objects.
+	 */
+	DRIVER_GEM_GPUVA		= BIT(8),
 
 	/* IMPORTANT: Below are all the legacy flags, add new ones above. */
 
@@ -304,22 +310,14 @@ struct drm_driver {
 	/**
 	 * @prime_handle_to_fd:
 	 *
-	 * Main PRIME export function. Should be implemented with
-	 * drm_gem_prime_handle_to_fd() for GEM based drivers.
-	 *
-	 * For an in-depth discussion see :ref:`PRIME buffer sharing
-	 * documentation <prime_buffer_sharing>`.
+	 * PRIME export function. Only used by vmwgfx.
 	 */
 	int (*prime_handle_to_fd)(struct drm_device *dev, struct drm_file *file_priv,
 				uint32_t handle, uint32_t flags, int *prime_fd);
 	/**
 	 * @prime_fd_to_handle:
 	 *
-	 * Main PRIME import function. Should be implemented with
-	 * drm_gem_prime_fd_to_handle() for GEM based drivers.
-	 *
-	 * For an in-depth discussion see :ref:`PRIME buffer sharing
-	 * documentation <prime_buffer_sharing>`.
+	 * PRIME import function. Only used by vmwgfx.
 	 */
 	int (*prime_fd_to_handle)(struct drm_device *dev, struct drm_file *file_priv,
 				int prime_fd, uint32_t *handle);
@@ -343,20 +341,6 @@ struct drm_driver {
 				struct drm_device *dev,
 				struct dma_buf_attachment *attach,
 				struct sg_table *sgt);
-	/**
-	 * @gem_prime_mmap:
-	 *
-	 * mmap hook for GEM drivers, used to implement dma-buf mmap in the
-	 * PRIME helpers.
-	 *
-	 * This hook only exists for historical reasons. Drivers must use
-	 * drm_gem_prime_mmap() to implement it.
-	 *
-	 * FIXME: Convert all drivers to implement mmap in struct
-	 * &drm_gem_object_funcs and inline drm_gem_prime_mmap() into
-	 * its callers. This hook should be removed afterwards.
-	 */
-	int (*gem_prime_mmap)(struct drm_gem_object *obj, struct vm_area_struct *vma);
 
 	/**
 	 * @dumb_create:
diff --git a/include/drm/drm_exec.h b/include/drm/drm_exec.h
new file mode 100644
index 000000000000..e0462361adf9
--- /dev/null
+++ b/include/drm/drm_exec.h
@@ -0,0 +1,123 @@
+/* SPDX-License-Identifier: GPL-2.0 OR MIT */
+
+#ifndef __DRM_EXEC_H__
+#define __DRM_EXEC_H__
+
+#include <linux/compiler.h>
+#include <linux/ww_mutex.h>
+
+#define DRM_EXEC_INTERRUPTIBLE_WAIT	BIT(0)
+#define DRM_EXEC_IGNORE_DUPLICATES	BIT(1)
+
+struct drm_gem_object;
+
+/**
+ * struct drm_exec - Execution context
+ */
+struct drm_exec {
+	/**
+	 * @flags: Flags to control locking behavior
+	 */
+	uint32_t		flags;
+
+	/**
+	 * @ticket: WW ticket used for acquiring locks
+	 */
+	struct ww_acquire_ctx	ticket;
+
+	/**
+	 * @num_objects: number of objects locked
+	 */
+	unsigned int		num_objects;
+
+	/**
+	 * @max_objects: maximum objects in array
+	 */
+	unsigned int		max_objects;
+
+	/**
+	 * @objects: array of the locked objects
+	 */
+	struct drm_gem_object	**objects;
+
+	/**
+	 * @contended: contended GEM object we backed off for
+	 */
+	struct drm_gem_object	*contended;
+
+	/**
+	 * @prelocked: already locked GEM object due to contention
+	 */
+	struct drm_gem_object *prelocked;
+};
+
+/**
+ * drm_exec_for_each_locked_object - iterate over all the locked objects
+ * @exec: drm_exec object
+ * @index: unsigned long index for the iteration
+ * @obj: the current GEM object
+ *
+ * Iterate over all the locked GEM objects inside the drm_exec object.
+ */
+#define drm_exec_for_each_locked_object(exec, index, obj)	\
+	for (index = 0, obj = (exec)->objects[0];		\
+	     index < (exec)->num_objects;			\
+	     ++index, obj = (exec)->objects[index])
+
+/**
+ * drm_exec_until_all_locked - loop until all GEM objects are locked
+ * @exec: drm_exec object
+ *
+ * Core functionality of the drm_exec object. Loops until all GEM objects are
+ * locked and no more contention exists. At the beginning of the loop it is
+ * guaranteed that no GEM object is locked.
+ *
+ * Since labels can't be defined local to the loops body we use a jump pointer
+ * to make sure that the retry is only used from within the loops body.
+ */
+#define drm_exec_until_all_locked(exec)					\
+__PASTE(__drm_exec_, __LINE__):						\
+	for (void *__drm_exec_retry_ptr; ({				\
+		__drm_exec_retry_ptr = &&__PASTE(__drm_exec_, __LINE__);\
+		(void)__drm_exec_retry_ptr;				\
+		drm_exec_cleanup(exec);					\
+	});)
+
+/**
+ * drm_exec_retry_on_contention - restart the loop to grap all locks
+ * @exec: drm_exec object
+ *
+ * Control flow helper to continue when a contention was detected and we need to
+ * clean up and re-start the loop to prepare all GEM objects.
+ */
+#define drm_exec_retry_on_contention(exec)			\
+	do {							\
+		if (unlikely(drm_exec_is_contended(exec)))	\
+			goto *__drm_exec_retry_ptr;		\
+	} while (0)
+
+/**
+ * drm_exec_is_contended - check for contention
+ * @exec: drm_exec object
+ *
+ * Returns true if the drm_exec object has run into some contention while
+ * locking a GEM object and needs to clean up.
+ */
+static inline bool drm_exec_is_contended(struct drm_exec *exec)
+{
+	return !!exec->contended;
+}
+
+void drm_exec_init(struct drm_exec *exec, uint32_t flags);
+void drm_exec_fini(struct drm_exec *exec);
+bool drm_exec_cleanup(struct drm_exec *exec);
+int drm_exec_lock_obj(struct drm_exec *exec, struct drm_gem_object *obj);
+void drm_exec_unlock_obj(struct drm_exec *exec, struct drm_gem_object *obj);
+int drm_exec_prepare_obj(struct drm_exec *exec, struct drm_gem_object *obj,
+			 unsigned int num_fences);
+int drm_exec_prepare_array(struct drm_exec *exec,
+			   struct drm_gem_object **objects,
+			   unsigned int num_objects,
+			   unsigned int num_fences);
+
+#endif
diff --git a/include/drm/drm_file.h b/include/drm/drm_file.h
index 966912053cb0..010239392adf 100644
--- a/include/drm/drm_file.h
+++ b/include/drm/drm_file.h
@@ -50,16 +50,16 @@ struct file;
  * header include loops we need it here for now.
  */
 
-/* Note that the order of this enum is ABI (it determines
+/* Note that the values of this enum are ABI (it determines
  * /dev/dri/renderD* numbers).
  *
  * Setting DRM_MINOR_ACCEL to 32 gives enough space for more drm minors to
  * be implemented before we hit any future
  */
 enum drm_minor_type {
-	DRM_MINOR_PRIMARY,
-	DRM_MINOR_CONTROL,
-	DRM_MINOR_RENDER,
+	DRM_MINOR_PRIMARY = 0,
+	DRM_MINOR_CONTROL = 1,
+	DRM_MINOR_RENDER = 2,
 	DRM_MINOR_ACCEL = 32,
 };
 
diff --git a/include/drm/drm_gem.h b/include/drm/drm_gem.h
index bbc721870c13..bc9f6aa2f3fe 100644
--- a/include/drm/drm_gem.h
+++ b/include/drm/drm_gem.h
@@ -36,6 +36,8 @@
 
 #include <linux/kref.h>
 #include <linux/dma-resv.h>
+#include <linux/list.h>
+#include <linux/mutex.h>
 
 #include <drm/drm_vma_manager.h>
 
@@ -380,6 +382,22 @@ struct drm_gem_object {
 	struct dma_resv _resv;
 
 	/**
+	 * @gpuva:
+	 *
+	 * Provides the list of GPU VAs attached to this GEM object.
+	 *
+	 * Drivers should lock list accesses with the GEMs &dma_resv lock
+	 * (&drm_gem_object.resv) or a custom lock if one is provided.
+	 */
+	struct {
+		struct list_head list;
+
+#ifdef CONFIG_LOCKDEP
+		struct lockdep_map *lock_dep_map;
+#endif
+	} gpuva;
+
+	/**
 	 * @funcs:
 	 *
 	 * Optional GEM object functions. If this is set, it will be used instead of the
@@ -526,4 +544,68 @@ unsigned long drm_gem_lru_scan(struct drm_gem_lru *lru,
 
 int drm_gem_evict(struct drm_gem_object *obj);
 
+#ifdef CONFIG_LOCKDEP
+/**
+ * drm_gem_gpuva_set_lock() - Set the lock protecting accesses to the gpuva list.
+ * @obj: the &drm_gem_object
+ * @lock: the lock used to protect the gpuva list. The locking primitive
+ * must contain a dep_map field.
+ *
+ * Call this if you're not proctecting access to the gpuva list with the
+ * dma-resv lock, but with a custom lock.
+ */
+#define drm_gem_gpuva_set_lock(obj, lock) \
+	if (!WARN((obj)->gpuva.lock_dep_map, \
+		  "GEM GPUVA lock should be set only once.")) \
+		(obj)->gpuva.lock_dep_map = &(lock)->dep_map
+#define drm_gem_gpuva_assert_lock_held(obj) \
+	lockdep_assert((obj)->gpuva.lock_dep_map ? \
+		       lock_is_held((obj)->gpuva.lock_dep_map) : \
+		       dma_resv_held((obj)->resv))
+#else
+#define drm_gem_gpuva_set_lock(obj, lock) do {} while (0)
+#define drm_gem_gpuva_assert_lock_held(obj) do {} while (0)
+#endif
+
+/**
+ * drm_gem_gpuva_init() - initialize the gpuva list of a GEM object
+ * @obj: the &drm_gem_object
+ *
+ * This initializes the &drm_gem_object's &drm_gpuva list.
+ *
+ * Calling this function is only necessary for drivers intending to support the
+ * &drm_driver_feature DRIVER_GEM_GPUVA.
+ *
+ * See also drm_gem_gpuva_set_lock().
+ */
+static inline void drm_gem_gpuva_init(struct drm_gem_object *obj)
+{
+	INIT_LIST_HEAD(&obj->gpuva.list);
+}
+
+/**
+ * drm_gem_for_each_gpuva() - iternator to walk over a list of gpuvas
+ * @entry__: &drm_gpuva structure to assign to in each iteration step
+ * @obj__: the &drm_gem_object the &drm_gpuvas to walk are associated with
+ *
+ * This iterator walks over all &drm_gpuva structures associated with the
+ * &drm_gpuva_manager.
+ */
+#define drm_gem_for_each_gpuva(entry__, obj__) \
+	list_for_each_entry(entry__, &(obj__)->gpuva.list, gem.entry)
+
+/**
+ * drm_gem_for_each_gpuva_safe() - iternator to safely walk over a list of
+ * gpuvas
+ * @entry__: &drm_gpuva structure to assign to in each iteration step
+ * @next__: &next &drm_gpuva to store the next step
+ * @obj__: the &drm_gem_object the &drm_gpuvas to walk are associated with
+ *
+ * This iterator walks over all &drm_gpuva structures associated with the
+ * &drm_gem_object. It is implemented with list_for_each_entry_safe(), hence
+ * it is save against removal of elements.
+ */
+#define drm_gem_for_each_gpuva_safe(entry__, next__, obj__) \
+	list_for_each_entry_safe(entry__, next__, &(obj__)->gpuva.list, gem.entry)
+
 #endif /* __DRM_GEM_H__ */
diff --git a/include/drm/drm_gem_dma_helper.h b/include/drm/drm_gem_dma_helper.h
index 8a043235dad8..a827bde494f6 100644
--- a/include/drm/drm_gem_dma_helper.h
+++ b/include/drm/drm_gem_dma_helper.h
@@ -166,11 +166,8 @@ drm_gem_dma_prime_import_sg_table(struct drm_device *dev,
  * DRM_GEM_DMA_DRIVER_OPS_VMAP_WITH_DUMB_CREATE() instead.
  */
 #define DRM_GEM_DMA_DRIVER_OPS_WITH_DUMB_CREATE(dumb_create_func) \
-	.dumb_create		= (dumb_create_func), \
-	.prime_handle_to_fd	= drm_gem_prime_handle_to_fd, \
-	.prime_fd_to_handle	= drm_gem_prime_fd_to_handle, \
-	.gem_prime_import_sg_table = drm_gem_dma_prime_import_sg_table, \
-	.gem_prime_mmap		= drm_gem_prime_mmap
+	.dumb_create		   = (dumb_create_func), \
+	.gem_prime_import_sg_table = drm_gem_dma_prime_import_sg_table
 
 /**
  * DRM_GEM_DMA_DRIVER_OPS - DMA GEM driver operations
@@ -204,11 +201,8 @@ drm_gem_dma_prime_import_sg_table(struct drm_device *dev,
  * DRM_GEM_DMA_DRIVER_OPS_WITH_DUMB_CREATE() instead.
  */
 #define DRM_GEM_DMA_DRIVER_OPS_VMAP_WITH_DUMB_CREATE(dumb_create_func) \
-	.dumb_create		= dumb_create_func, \
-	.prime_handle_to_fd	= drm_gem_prime_handle_to_fd, \
-	.prime_fd_to_handle	= drm_gem_prime_fd_to_handle, \
-	.gem_prime_import_sg_table = drm_gem_dma_prime_import_sg_table_vmap, \
-	.gem_prime_mmap		= drm_gem_prime_mmap
+	.dumb_create		   = (dumb_create_func), \
+	.gem_prime_import_sg_table = drm_gem_dma_prime_import_sg_table_vmap
 
 /**
  * DRM_GEM_DMA_DRIVER_OPS_VMAP - DMA GEM driver operations ensuring a virtual
diff --git a/include/drm/drm_gem_shmem_helper.h b/include/drm/drm_gem_shmem_helper.h
index 5994fed5e327..bf0c31aa8fbe 100644
--- a/include/drm/drm_gem_shmem_helper.h
+++ b/include/drm/drm_gem_shmem_helper.h
@@ -27,11 +27,6 @@ struct drm_gem_shmem_object {
 	struct drm_gem_object base;
 
 	/**
-	 * @pages_lock: Protects the page table and use count
-	 */
-	struct mutex pages_lock;
-
-	/**
 	 * @pages: Page table
 	 */
 	struct page **pages;
@@ -66,11 +61,6 @@ struct drm_gem_shmem_object {
 	struct sg_table *sgt;
 
 	/**
-	 * @vmap_lock: Protects the vmap address and use count
-	 */
-	struct mutex vmap_lock;
-
-	/**
 	 * @vaddr: Kernel virtual address of the backing memory
 	 */
 	void *vaddr;
@@ -109,7 +99,6 @@ struct drm_gem_shmem_object {
 struct drm_gem_shmem_object *drm_gem_shmem_create(struct drm_device *dev, size_t size);
 void drm_gem_shmem_free(struct drm_gem_shmem_object *shmem);
 
-int drm_gem_shmem_get_pages(struct drm_gem_shmem_object *shmem);
 void drm_gem_shmem_put_pages(struct drm_gem_shmem_object *shmem);
 int drm_gem_shmem_pin(struct drm_gem_shmem_object *shmem);
 void drm_gem_shmem_unpin(struct drm_gem_shmem_object *shmem);
@@ -128,8 +117,7 @@ static inline bool drm_gem_shmem_is_purgeable(struct drm_gem_shmem_object *shmem
 		!shmem->base.dma_buf && !shmem->base.import_attach;
 }
 
-void drm_gem_shmem_purge_locked(struct drm_gem_shmem_object *shmem);
-bool drm_gem_shmem_purge(struct drm_gem_shmem_object *shmem);
+void drm_gem_shmem_purge(struct drm_gem_shmem_object *shmem);
 
 struct sg_table *drm_gem_shmem_get_sg_table(struct drm_gem_shmem_object *shmem);
 struct sg_table *drm_gem_shmem_get_pages_sgt(struct drm_gem_shmem_object *shmem);
@@ -290,10 +278,7 @@ int drm_gem_shmem_dumb_create(struct drm_file *file, struct drm_device *dev,
  * the &drm_driver structure.
  */
 #define DRM_GEM_SHMEM_DRIVER_OPS \
-	.prime_handle_to_fd	= drm_gem_prime_handle_to_fd, \
-	.prime_fd_to_handle	= drm_gem_prime_fd_to_handle, \
 	.gem_prime_import_sg_table = drm_gem_shmem_prime_import_sg_table, \
-	.gem_prime_mmap		= drm_gem_prime_mmap, \
-	.dumb_create		= drm_gem_shmem_dumb_create
+	.dumb_create		   = drm_gem_shmem_dumb_create
 
 #endif /* __DRM_GEM_SHMEM_HELPER_H__ */
diff --git a/include/drm/drm_gem_vram_helper.h b/include/drm/drm_gem_vram_helper.h
index f4aab64411d8..e18429f09e53 100644
--- a/include/drm/drm_gem_vram_helper.h
+++ b/include/drm/drm_gem_vram_helper.h
@@ -157,12 +157,9 @@ void drm_gem_vram_simple_display_pipe_cleanup_fb(
  * &struct drm_driver with default functions.
  */
 #define DRM_GEM_VRAM_DRIVER \
-	.debugfs_init             = drm_vram_mm_debugfs_init, \
-	.dumb_create		  = drm_gem_vram_driver_dumb_create, \
-	.dumb_map_offset	  = drm_gem_ttm_dumb_map_offset, \
-	.gem_prime_mmap		  = drm_gem_prime_mmap, \
-	.prime_handle_to_fd	  = drm_gem_prime_handle_to_fd, \
-	.prime_fd_to_handle	  = drm_gem_prime_fd_to_handle
+	.debugfs_init	 = drm_vram_mm_debugfs_init, \
+	.dumb_create	 = drm_gem_vram_driver_dumb_create, \
+	.dumb_map_offset = drm_gem_ttm_dumb_map_offset
 
 /*
  *  VRAM memory manager
diff --git a/include/drm/drm_gpuva_mgr.h b/include/drm/drm_gpuva_mgr.h
new file mode 100644
index 000000000000..ed8d50200cc3
--- /dev/null
+++ b/include/drm/drm_gpuva_mgr.h
@@ -0,0 +1,706 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef __DRM_GPUVA_MGR_H__
+#define __DRM_GPUVA_MGR_H__
+
+/*
+ * Copyright (c) 2022 Red Hat.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <linux/list.h>
+#include <linux/rbtree.h>
+#include <linux/types.h>
+
+#include <drm/drm_gem.h>
+
+struct drm_gpuva_manager;
+struct drm_gpuva_fn_ops;
+
+/**
+ * enum drm_gpuva_flags - flags for struct drm_gpuva
+ */
+enum drm_gpuva_flags {
+	/**
+	 * @DRM_GPUVA_INVALIDATED:
+	 *
+	 * Flag indicating that the &drm_gpuva's backing GEM is invalidated.
+	 */
+	DRM_GPUVA_INVALIDATED = (1 << 0),
+
+	/**
+	 * @DRM_GPUVA_SPARSE:
+	 *
+	 * Flag indicating that the &drm_gpuva is a sparse mapping.
+	 */
+	DRM_GPUVA_SPARSE = (1 << 1),
+
+	/**
+	 * @DRM_GPUVA_USERBITS: user defined bits
+	 */
+	DRM_GPUVA_USERBITS = (1 << 2),
+};
+
+/**
+ * struct drm_gpuva - structure to track a GPU VA mapping
+ *
+ * This structure represents a GPU VA mapping and is associated with a
+ * &drm_gpuva_manager.
+ *
+ * Typically, this structure is embedded in bigger driver structures.
+ */
+struct drm_gpuva {
+	/**
+	 * @mgr: the &drm_gpuva_manager this object is associated with
+	 */
+	struct drm_gpuva_manager *mgr;
+
+	/**
+	 * @flags: the &drm_gpuva_flags for this mapping
+	 */
+	enum drm_gpuva_flags flags;
+
+	/**
+	 * @va: structure containing the address and range of the &drm_gpuva
+	 */
+	struct {
+		/**
+		 * @addr: the start address
+		 */
+		u64 addr;
+
+		/*
+		 * @range: the range
+		 */
+		u64 range;
+	} va;
+
+	/**
+	 * @gem: structure containing the &drm_gem_object and it's offset
+	 */
+	struct {
+		/**
+		 * @offset: the offset within the &drm_gem_object
+		 */
+		u64 offset;
+
+		/**
+		 * @obj: the mapped &drm_gem_object
+		 */
+		struct drm_gem_object *obj;
+
+		/**
+		 * @entry: the &list_head to attach this object to a &drm_gem_object
+		 */
+		struct list_head entry;
+	} gem;
+
+	/**
+	 * @rb: structure containing data to store &drm_gpuvas in a rb-tree
+	 */
+	struct {
+		/**
+		 * @rb: the rb-tree node
+		 */
+		struct rb_node node;
+
+		/**
+		 * @entry: The &list_head to additionally connect &drm_gpuvas
+		 * in the same order they appear in the interval tree. This is
+		 * useful to keep iterating &drm_gpuvas from a start node found
+		 * through the rb-tree while doing modifications on the rb-tree
+		 * itself.
+		 */
+		struct list_head entry;
+
+		/**
+		 * @__subtree_last: needed by the interval tree, holding last-in-subtree
+		 */
+		u64 __subtree_last;
+	} rb;
+};
+
+int drm_gpuva_insert(struct drm_gpuva_manager *mgr, struct drm_gpuva *va);
+void drm_gpuva_remove(struct drm_gpuva *va);
+
+void drm_gpuva_link(struct drm_gpuva *va);
+void drm_gpuva_unlink(struct drm_gpuva *va);
+
+struct drm_gpuva *drm_gpuva_find(struct drm_gpuva_manager *mgr,
+				 u64 addr, u64 range);
+struct drm_gpuva *drm_gpuva_find_first(struct drm_gpuva_manager *mgr,
+				       u64 addr, u64 range);
+struct drm_gpuva *drm_gpuva_find_prev(struct drm_gpuva_manager *mgr, u64 start);
+struct drm_gpuva *drm_gpuva_find_next(struct drm_gpuva_manager *mgr, u64 end);
+
+bool drm_gpuva_interval_empty(struct drm_gpuva_manager *mgr, u64 addr, u64 range);
+
+static inline void drm_gpuva_init(struct drm_gpuva *va, u64 addr, u64 range,
+				  struct drm_gem_object *obj, u64 offset)
+{
+	va->va.addr = addr;
+	va->va.range = range;
+	va->gem.obj = obj;
+	va->gem.offset = offset;
+}
+
+/**
+ * drm_gpuva_invalidate() - sets whether the backing GEM of this &drm_gpuva is
+ * invalidated
+ * @va: the &drm_gpuva to set the invalidate flag for
+ * @invalidate: indicates whether the &drm_gpuva is invalidated
+ */
+static inline void drm_gpuva_invalidate(struct drm_gpuva *va, bool invalidate)
+{
+	if (invalidate)
+		va->flags |= DRM_GPUVA_INVALIDATED;
+	else
+		va->flags &= ~DRM_GPUVA_INVALIDATED;
+}
+
+/**
+ * drm_gpuva_invalidated() - indicates whether the backing BO of this &drm_gpuva
+ * is invalidated
+ * @va: the &drm_gpuva to check
+ */
+static inline bool drm_gpuva_invalidated(struct drm_gpuva *va)
+{
+	return va->flags & DRM_GPUVA_INVALIDATED;
+}
+
+/**
+ * struct drm_gpuva_manager - DRM GPU VA Manager
+ *
+ * The DRM GPU VA Manager keeps track of a GPU's virtual address space by using
+ * &maple_tree structures. Typically, this structure is embedded in bigger
+ * driver structures.
+ *
+ * Drivers can pass addresses and ranges in an arbitrary unit, e.g. bytes or
+ * pages.
+ *
+ * There should be one manager instance per GPU virtual address space.
+ */
+struct drm_gpuva_manager {
+	/**
+	 * @name: the name of the DRM GPU VA space
+	 */
+	const char *name;
+
+	/**
+	 * @mm_start: start of the VA space
+	 */
+	u64 mm_start;
+
+	/**
+	 * @mm_range: length of the VA space
+	 */
+	u64 mm_range;
+
+	/**
+	 * @rb: structures to track &drm_gpuva entries
+	 */
+	struct {
+		/**
+		 * @tree: the rb-tree to track GPU VA mappings
+		 */
+		struct rb_root_cached tree;
+
+		/**
+		 * @list: the &list_head to track GPU VA mappings
+		 */
+		struct list_head list;
+	} rb;
+
+	/**
+	 * @kernel_alloc_node:
+	 *
+	 * &drm_gpuva representing the address space cutout reserved for
+	 * the kernel
+	 */
+	struct drm_gpuva kernel_alloc_node;
+
+	/**
+	 * @ops: &drm_gpuva_fn_ops providing the split/merge steps to drivers
+	 */
+	const struct drm_gpuva_fn_ops *ops;
+};
+
+void drm_gpuva_manager_init(struct drm_gpuva_manager *mgr,
+			    const char *name,
+			    u64 start_offset, u64 range,
+			    u64 reserve_offset, u64 reserve_range,
+			    const struct drm_gpuva_fn_ops *ops);
+void drm_gpuva_manager_destroy(struct drm_gpuva_manager *mgr);
+
+static inline struct drm_gpuva *
+__drm_gpuva_next(struct drm_gpuva *va)
+{
+	if (va && !list_is_last(&va->rb.entry, &va->mgr->rb.list))
+		return list_next_entry(va, rb.entry);
+
+	return NULL;
+}
+
+/**
+ * drm_gpuva_for_each_va_range() - iterate over a range of &drm_gpuvas
+ * @va__: &drm_gpuva structure to assign to in each iteration step
+ * @mgr__: &drm_gpuva_manager to walk over
+ * @start__: starting offset, the first gpuva will overlap this
+ * @end__: ending offset, the last gpuva will start before this (but may
+ * overlap)
+ *
+ * This iterator walks over all &drm_gpuvas in the &drm_gpuva_manager that lie
+ * between @start__ and @end__. It is implemented similarly to list_for_each(),
+ * but is using the &drm_gpuva_manager's internal interval tree to accelerate
+ * the search for the starting &drm_gpuva, and hence isn't safe against removal
+ * of elements. It assumes that @end__ is within (or is the upper limit of) the
+ * &drm_gpuva_manager. This iterator does not skip over the &drm_gpuva_manager's
+ * @kernel_alloc_node.
+ */
+#define drm_gpuva_for_each_va_range(va__, mgr__, start__, end__) \
+	for (va__ = drm_gpuva_find_first((mgr__), (start__), (end__) - (start__)); \
+	     va__ && (va__->va.addr < (end__)); \
+	     va__ = __drm_gpuva_next(va__))
+
+/**
+ * drm_gpuva_for_each_va_range_safe() - safely iterate over a range of
+ * &drm_gpuvas
+ * @va__: &drm_gpuva to assign to in each iteration step
+ * @next__: another &drm_gpuva to use as temporary storage
+ * @mgr__: &drm_gpuva_manager to walk over
+ * @start__: starting offset, the first gpuva will overlap this
+ * @end__: ending offset, the last gpuva will start before this (but may
+ * overlap)
+ *
+ * This iterator walks over all &drm_gpuvas in the &drm_gpuva_manager that lie
+ * between @start__ and @end__. It is implemented similarly to
+ * list_for_each_safe(), but is using the &drm_gpuva_manager's internal interval
+ * tree to accelerate the search for the starting &drm_gpuva, and hence is safe
+ * against removal of elements. It assumes that @end__ is within (or is the
+ * upper limit of) the &drm_gpuva_manager. This iterator does not skip over the
+ * &drm_gpuva_manager's @kernel_alloc_node.
+ */
+#define drm_gpuva_for_each_va_range_safe(va__, next__, mgr__, start__, end__) \
+	for (va__ = drm_gpuva_find_first((mgr__), (start__), (end__) - (start__)), \
+	     next__ = __drm_gpuva_next(va__); \
+	     va__ && (va__->va.addr < (end__)); \
+	     va__ = next__, next__ = __drm_gpuva_next(va__))
+
+/**
+ * drm_gpuva_for_each_va() - iterate over all &drm_gpuvas
+ * @va__: &drm_gpuva to assign to in each iteration step
+ * @mgr__: &drm_gpuva_manager to walk over
+ *
+ * This iterator walks over all &drm_gpuva structures associated with the given
+ * &drm_gpuva_manager.
+ */
+#define drm_gpuva_for_each_va(va__, mgr__) \
+	list_for_each_entry(va__, &(mgr__)->rb.list, rb.entry)
+
+/**
+ * drm_gpuva_for_each_va_safe() - safely iterate over all &drm_gpuvas
+ * @va__: &drm_gpuva to assign to in each iteration step
+ * @next__: another &drm_gpuva to use as temporary storage
+ * @mgr__: &drm_gpuva_manager to walk over
+ *
+ * This iterator walks over all &drm_gpuva structures associated with the given
+ * &drm_gpuva_manager. It is implemented with list_for_each_entry_safe(), and
+ * hence safe against the removal of elements.
+ */
+#define drm_gpuva_for_each_va_safe(va__, next__, mgr__) \
+	list_for_each_entry_safe(va__, next__, &(mgr__)->rb.list, rb.entry)
+
+/**
+ * enum drm_gpuva_op_type - GPU VA operation type
+ *
+ * Operations to alter the GPU VA mappings tracked by the &drm_gpuva_manager.
+ */
+enum drm_gpuva_op_type {
+	/**
+	 * @DRM_GPUVA_OP_MAP: the map op type
+	 */
+	DRM_GPUVA_OP_MAP,
+
+	/**
+	 * @DRM_GPUVA_OP_REMAP: the remap op type
+	 */
+	DRM_GPUVA_OP_REMAP,
+
+	/**
+	 * @DRM_GPUVA_OP_UNMAP: the unmap op type
+	 */
+	DRM_GPUVA_OP_UNMAP,
+
+	/**
+	 * @DRM_GPUVA_OP_PREFETCH: the prefetch op type
+	 */
+	DRM_GPUVA_OP_PREFETCH,
+};
+
+/**
+ * struct drm_gpuva_op_map - GPU VA map operation
+ *
+ * This structure represents a single map operation generated by the
+ * DRM GPU VA manager.
+ */
+struct drm_gpuva_op_map {
+	/**
+	 * @va: structure containing address and range of a map
+	 * operation
+	 */
+	struct {
+		/**
+		 * @addr: the base address of the new mapping
+		 */
+		u64 addr;
+
+		/**
+		 * @range: the range of the new mapping
+		 */
+		u64 range;
+	} va;
+
+	/**
+	 * @gem: structure containing the &drm_gem_object and it's offset
+	 */
+	struct {
+		/**
+		 * @offset: the offset within the &drm_gem_object
+		 */
+		u64 offset;
+
+		/**
+		 * @obj: the &drm_gem_object to map
+		 */
+		struct drm_gem_object *obj;
+	} gem;
+};
+
+/**
+ * struct drm_gpuva_op_unmap - GPU VA unmap operation
+ *
+ * This structure represents a single unmap operation generated by the
+ * DRM GPU VA manager.
+ */
+struct drm_gpuva_op_unmap {
+	/**
+	 * @va: the &drm_gpuva to unmap
+	 */
+	struct drm_gpuva *va;
+
+	/**
+	 * @keep:
+	 *
+	 * Indicates whether this &drm_gpuva is physically contiguous with the
+	 * original mapping request.
+	 *
+	 * Optionally, if &keep is set, drivers may keep the actual page table
+	 * mappings for this &drm_gpuva, adding the missing page table entries
+	 * only and update the &drm_gpuva_manager accordingly.
+	 */
+	bool keep;
+};
+
+/**
+ * struct drm_gpuva_op_remap - GPU VA remap operation
+ *
+ * This represents a single remap operation generated by the DRM GPU VA manager.
+ *
+ * A remap operation is generated when an existing GPU VA mmapping is split up
+ * by inserting a new GPU VA mapping or by partially unmapping existent
+ * mapping(s), hence it consists of a maximum of two map and one unmap
+ * operation.
+ *
+ * The @unmap operation takes care of removing the original existing mapping.
+ * @prev is used to remap the preceding part, @next the subsequent part.
+ *
+ * If either a new mapping's start address is aligned with the start address
+ * of the old mapping or the new mapping's end address is aligned with the
+ * end address of the old mapping, either @prev or @next is NULL.
+ *
+ * Note, the reason for a dedicated remap operation, rather than arbitrary
+ * unmap and map operations, is to give drivers the chance of extracting driver
+ * specific data for creating the new mappings from the unmap operations's
+ * &drm_gpuva structure which typically is embedded in larger driver specific
+ * structures.
+ */
+struct drm_gpuva_op_remap {
+	/**
+	 * @prev: the preceding part of a split mapping
+	 */
+	struct drm_gpuva_op_map *prev;
+
+	/**
+	 * @next: the subsequent part of a split mapping
+	 */
+	struct drm_gpuva_op_map *next;
+
+	/**
+	 * @unmap: the unmap operation for the original existing mapping
+	 */
+	struct drm_gpuva_op_unmap *unmap;
+};
+
+/**
+ * struct drm_gpuva_op_prefetch - GPU VA prefetch operation
+ *
+ * This structure represents a single prefetch operation generated by the
+ * DRM GPU VA manager.
+ */
+struct drm_gpuva_op_prefetch {
+	/**
+	 * @va: the &drm_gpuva to prefetch
+	 */
+	struct drm_gpuva *va;
+};
+
+/**
+ * struct drm_gpuva_op - GPU VA operation
+ *
+ * This structure represents a single generic operation.
+ *
+ * The particular type of the operation is defined by @op.
+ */
+struct drm_gpuva_op {
+	/**
+	 * @entry:
+	 *
+	 * The &list_head used to distribute instances of this struct within
+	 * &drm_gpuva_ops.
+	 */
+	struct list_head entry;
+
+	/**
+	 * @op: the type of the operation
+	 */
+	enum drm_gpuva_op_type op;
+
+	union {
+		/**
+		 * @map: the map operation
+		 */
+		struct drm_gpuva_op_map map;
+
+		/**
+		 * @remap: the remap operation
+		 */
+		struct drm_gpuva_op_remap remap;
+
+		/**
+		 * @unmap: the unmap operation
+		 */
+		struct drm_gpuva_op_unmap unmap;
+
+		/**
+		 * @prefetch: the prefetch operation
+		 */
+		struct drm_gpuva_op_prefetch prefetch;
+	};
+};
+
+/**
+ * struct drm_gpuva_ops - wraps a list of &drm_gpuva_op
+ */
+struct drm_gpuva_ops {
+	/**
+	 * @list: the &list_head
+	 */
+	struct list_head list;
+};
+
+/**
+ * drm_gpuva_for_each_op() - iterator to walk over &drm_gpuva_ops
+ * @op: &drm_gpuva_op to assign in each iteration step
+ * @ops: &drm_gpuva_ops to walk
+ *
+ * This iterator walks over all ops within a given list of operations.
+ */
+#define drm_gpuva_for_each_op(op, ops) list_for_each_entry(op, &(ops)->list, entry)
+
+/**
+ * drm_gpuva_for_each_op_safe() - iterator to safely walk over &drm_gpuva_ops
+ * @op: &drm_gpuva_op to assign in each iteration step
+ * @next: &next &drm_gpuva_op to store the next step
+ * @ops: &drm_gpuva_ops to walk
+ *
+ * This iterator walks over all ops within a given list of operations. It is
+ * implemented with list_for_each_safe(), so save against removal of elements.
+ */
+#define drm_gpuva_for_each_op_safe(op, next, ops) \
+	list_for_each_entry_safe(op, next, &(ops)->list, entry)
+
+/**
+ * drm_gpuva_for_each_op_from_reverse() - iterate backwards from the given point
+ * @op: &drm_gpuva_op to assign in each iteration step
+ * @ops: &drm_gpuva_ops to walk
+ *
+ * This iterator walks over all ops within a given list of operations beginning
+ * from the given operation in reverse order.
+ */
+#define drm_gpuva_for_each_op_from_reverse(op, ops) \
+	list_for_each_entry_from_reverse(op, &(ops)->list, entry)
+
+/**
+ * drm_gpuva_first_op() - returns the first &drm_gpuva_op from &drm_gpuva_ops
+ * @ops: the &drm_gpuva_ops to get the fist &drm_gpuva_op from
+ */
+#define drm_gpuva_first_op(ops) \
+	list_first_entry(&(ops)->list, struct drm_gpuva_op, entry)
+
+/**
+ * drm_gpuva_last_op() - returns the last &drm_gpuva_op from &drm_gpuva_ops
+ * @ops: the &drm_gpuva_ops to get the last &drm_gpuva_op from
+ */
+#define drm_gpuva_last_op(ops) \
+	list_last_entry(&(ops)->list, struct drm_gpuva_op, entry)
+
+/**
+ * drm_gpuva_prev_op() - previous &drm_gpuva_op in the list
+ * @op: the current &drm_gpuva_op
+ */
+#define drm_gpuva_prev_op(op) list_prev_entry(op, entry)
+
+/**
+ * drm_gpuva_next_op() - next &drm_gpuva_op in the list
+ * @op: the current &drm_gpuva_op
+ */
+#define drm_gpuva_next_op(op) list_next_entry(op, entry)
+
+struct drm_gpuva_ops *
+drm_gpuva_sm_map_ops_create(struct drm_gpuva_manager *mgr,
+			    u64 addr, u64 range,
+			    struct drm_gem_object *obj, u64 offset);
+struct drm_gpuva_ops *
+drm_gpuva_sm_unmap_ops_create(struct drm_gpuva_manager *mgr,
+			      u64 addr, u64 range);
+
+struct drm_gpuva_ops *
+drm_gpuva_prefetch_ops_create(struct drm_gpuva_manager *mgr,
+				 u64 addr, u64 range);
+
+struct drm_gpuva_ops *
+drm_gpuva_gem_unmap_ops_create(struct drm_gpuva_manager *mgr,
+			       struct drm_gem_object *obj);
+
+void drm_gpuva_ops_free(struct drm_gpuva_manager *mgr,
+			struct drm_gpuva_ops *ops);
+
+static inline void drm_gpuva_init_from_op(struct drm_gpuva *va,
+					  struct drm_gpuva_op_map *op)
+{
+	drm_gpuva_init(va, op->va.addr, op->va.range,
+		       op->gem.obj, op->gem.offset);
+}
+
+/**
+ * struct drm_gpuva_fn_ops - callbacks for split/merge steps
+ *
+ * This structure defines the callbacks used by &drm_gpuva_sm_map and
+ * &drm_gpuva_sm_unmap to provide the split/merge steps for map and unmap
+ * operations to drivers.
+ */
+struct drm_gpuva_fn_ops {
+	/**
+	 * @op_alloc: called when the &drm_gpuva_manager allocates
+	 * a struct drm_gpuva_op
+	 *
+	 * Some drivers may want to embed struct drm_gpuva_op into driver
+	 * specific structures. By implementing this callback drivers can
+	 * allocate memory accordingly.
+	 *
+	 * This callback is optional.
+	 */
+	struct drm_gpuva_op *(*op_alloc)(void);
+
+	/**
+	 * @op_free: called when the &drm_gpuva_manager frees a
+	 * struct drm_gpuva_op
+	 *
+	 * Some drivers may want to embed struct drm_gpuva_op into driver
+	 * specific structures. By implementing this callback drivers can
+	 * free the previously allocated memory accordingly.
+	 *
+	 * This callback is optional.
+	 */
+	void (*op_free)(struct drm_gpuva_op *op);
+
+	/**
+	 * @sm_step_map: called from &drm_gpuva_sm_map to finally insert the
+	 * mapping once all previous steps were completed
+	 *
+	 * The &priv pointer matches the one the driver passed to
+	 * &drm_gpuva_sm_map or &drm_gpuva_sm_unmap, respectively.
+	 *
+	 * Can be NULL if &drm_gpuva_sm_map is used.
+	 */
+	int (*sm_step_map)(struct drm_gpuva_op *op, void *priv);
+
+	/**
+	 * @sm_step_remap: called from &drm_gpuva_sm_map and
+	 * &drm_gpuva_sm_unmap to split up an existent mapping
+	 *
+	 * This callback is called when existent mapping needs to be split up.
+	 * This is the case when either a newly requested mapping overlaps or
+	 * is enclosed by an existent mapping or a partial unmap of an existent
+	 * mapping is requested.
+	 *
+	 * The &priv pointer matches the one the driver passed to
+	 * &drm_gpuva_sm_map or &drm_gpuva_sm_unmap, respectively.
+	 *
+	 * Can be NULL if neither &drm_gpuva_sm_map nor &drm_gpuva_sm_unmap is
+	 * used.
+	 */
+	int (*sm_step_remap)(struct drm_gpuva_op *op, void *priv);
+
+	/**
+	 * @sm_step_unmap: called from &drm_gpuva_sm_map and
+	 * &drm_gpuva_sm_unmap to unmap an existent mapping
+	 *
+	 * This callback is called when existent mapping needs to be unmapped.
+	 * This is the case when either a newly requested mapping encloses an
+	 * existent mapping or an unmap of an existent mapping is requested.
+	 *
+	 * The &priv pointer matches the one the driver passed to
+	 * &drm_gpuva_sm_map or &drm_gpuva_sm_unmap, respectively.
+	 *
+	 * Can be NULL if neither &drm_gpuva_sm_map nor &drm_gpuva_sm_unmap is
+	 * used.
+	 */
+	int (*sm_step_unmap)(struct drm_gpuva_op *op, void *priv);
+};
+
+int drm_gpuva_sm_map(struct drm_gpuva_manager *mgr, void *priv,
+		     u64 addr, u64 range,
+		     struct drm_gem_object *obj, u64 offset);
+
+int drm_gpuva_sm_unmap(struct drm_gpuva_manager *mgr, void *priv,
+		       u64 addr, u64 range);
+
+void drm_gpuva_map(struct drm_gpuva_manager *mgr,
+		   struct drm_gpuva *va,
+		   struct drm_gpuva_op_map *op);
+
+void drm_gpuva_remap(struct drm_gpuva *prev,
+		     struct drm_gpuva *next,
+		     struct drm_gpuva_op_remap *op);
+
+void drm_gpuva_unmap(struct drm_gpuva_op_unmap *op);
+
+#endif /* __DRM_GPUVA_MGR_H__ */
diff --git a/include/drm/drm_kunit_helpers.h b/include/drm/drm_kunit_helpers.h
index ed013fdcc1ff..514c8a7a32f0 100644
--- a/include/drm/drm_kunit_helpers.h
+++ b/include/drm/drm_kunit_helpers.h
@@ -87,5 +87,12 @@ __drm_kunit_helper_alloc_drm_device(struct kunit *test,
 						      sizeof(_type),		\
 						      offsetof(_type, _member),	\
 						      _feat))
+struct drm_modeset_acquire_ctx *
+drm_kunit_helper_acquire_ctx_alloc(struct kunit *test);
+
+struct drm_atomic_state *
+drm_kunit_helper_atomic_state_alloc(struct kunit *test,
+				    struct drm_device *drm,
+				    struct drm_modeset_acquire_ctx *ctx);
 
 #endif // DRM_KUNIT_HELPERS_H_
diff --git a/include/drm/drm_modeset_helper_vtables.h b/include/drm/drm_modeset_helper_vtables.h
index 965faf082a6d..e3c3ac615909 100644
--- a/include/drm/drm_modeset_helper_vtables.h
+++ b/include/drm/drm_modeset_helper_vtables.h
@@ -59,8 +59,8 @@ enum mode_set_atomic {
 /**
  * struct drm_crtc_helper_funcs - helper operations for CRTCs
  *
- * These hooks are used by the legacy CRTC helpers, the transitional plane
- * helpers and the new atomic modesetting helpers.
+ * These hooks are used by the legacy CRTC helpers and the new atomic
+ * modesetting helpers.
  */
 struct drm_crtc_helper_funcs {
 	/**
@@ -216,9 +216,7 @@ struct drm_crtc_helper_funcs {
 	 *
 	 * This callback is used to update the display mode of a CRTC without
 	 * changing anything of the primary plane configuration. This fits the
-	 * requirement of atomic and hence is used by the atomic helpers. It is
-	 * also used by the transitional plane helpers to implement a
-	 * @mode_set hook in drm_helper_crtc_mode_set().
+	 * requirement of atomic and hence is used by the atomic helpers.
 	 *
 	 * Note that the display pipe is completely off when this function is
 	 * called. Atomic drivers which need hardware to be running before they
@@ -333,8 +331,8 @@ struct drm_crtc_helper_funcs {
 	 * all updated. Again the recommendation is to just call check helpers
 	 * until a maximal configuration is reached.
 	 *
-	 * This callback is used by the atomic modeset helpers and by the
-	 * transitional plane helpers, but it is optional.
+	 * This callback is used by the atomic modeset helpers, but it is
+	 * optional.
 	 *
 	 * NOTE:
 	 *
@@ -373,8 +371,8 @@ struct drm_crtc_helper_funcs {
 	 * has picked. See drm_atomic_helper_commit_planes() for a discussion of
 	 * the tradeoffs and variants of plane commit helpers.
 	 *
-	 * This callback is used by the atomic modeset helpers and by the
-	 * transitional plane helpers, but it is optional.
+	 * This callback is used by the atomic modeset helpers, but it is
+	 * optional.
 	 */
 	void (*atomic_begin)(struct drm_crtc *crtc,
 			     struct drm_atomic_state *state);
@@ -397,8 +395,8 @@ struct drm_crtc_helper_funcs {
 	 * has picked. See drm_atomic_helper_commit_planes() for a discussion of
 	 * the tradeoffs and variants of plane commit helpers.
 	 *
-	 * This callback is used by the atomic modeset helpers and by the
-	 * transitional plane helpers, but it is optional.
+	 * This callback is used by the atomic modeset helpers, but it is
+	 * optional.
 	 */
 	void (*atomic_flush)(struct drm_crtc *crtc,
 			     struct drm_atomic_state *state);
@@ -507,8 +505,8 @@ static inline void drm_crtc_helper_add(struct drm_crtc *crtc,
 /**
  * struct drm_encoder_helper_funcs - helper operations for encoders
  *
- * These hooks are used by the legacy CRTC helpers, the transitional plane
- * helpers and the new atomic modesetting helpers.
+ * These hooks are used by the legacy CRTC helpers and the new atomic
+ * modesetting helpers.
  */
 struct drm_encoder_helper_funcs {
 	/**
@@ -1185,8 +1183,7 @@ static inline void drm_connector_helper_add(struct drm_connector *connector,
 /**
  * struct drm_plane_helper_funcs - helper operations for planes
  *
- * These functions are used by the atomic helpers and by the transitional plane
- * helpers.
+ * These functions are used by the atomic helpers.
  */
 struct drm_plane_helper_funcs {
 	/**
@@ -1221,9 +1218,8 @@ struct drm_plane_helper_funcs {
 	 * The helpers will call @cleanup_fb with matching arguments for every
 	 * successful call to this hook.
 	 *
-	 * This callback is used by the atomic modeset helpers and by the
-	 * transitional plane helpers, but it is optional. See @begin_fb_access
-	 * for preparing per-commit resources.
+	 * This callback is used by the atomic modeset helpers, but it is
+	 * optional. See @begin_fb_access for preparing per-commit resources.
 	 *
 	 * RETURNS:
 	 *
@@ -1240,8 +1236,8 @@ struct drm_plane_helper_funcs {
 	 * This hook is called to clean up any resources allocated for the given
 	 * framebuffer and plane configuration in @prepare_fb.
 	 *
-	 * This callback is used by the atomic modeset helpers and by the
-	 * transitional plane helpers, but it is optional.
+	 * This callback is used by the atomic modeset helpers, but it is
+	 * optional.
 	 */
 	void (*cleanup_fb)(struct drm_plane *plane,
 			   struct drm_plane_state *old_state);
@@ -1295,8 +1291,8 @@ struct drm_plane_helper_funcs {
 	 * all updated. Again the recommendation is to just call check helpers
 	 * until a maximal configuration is reached.
 	 *
-	 * This callback is used by the atomic modeset helpers and by the
-	 * transitional plane helpers, but it is optional.
+	 * This callback is used by the atomic modeset helpers, but it is
+	 * optional.
 	 *
 	 * NOTE:
 	 *
@@ -1326,8 +1322,7 @@ struct drm_plane_helper_funcs {
 	 * has picked. See drm_atomic_helper_commit_planes() for a discussion of
 	 * the tradeoffs and variants of plane commit helpers.
 	 *
-	 * This callback is used by the atomic modeset helpers and by the
-	 * transitional plane helpers, but it is optional.
+	 * This callback is used by the atomic modeset helpers, but it is optional.
 	 */
 	void (*atomic_update)(struct drm_plane *plane,
 			      struct drm_atomic_state *state);
@@ -1376,9 +1371,8 @@ struct drm_plane_helper_funcs {
 	 * has picked. See drm_atomic_helper_commit_planes() for a discussion of
 	 * the tradeoffs and variants of plane commit helpers.
 	 *
-	 * This callback is used by the atomic modeset helpers and by the
-	 * transitional plane helpers, but it is optional. It's intended to
-	 * reverse the effects of @atomic_enable.
+	 * This callback is used by the atomic modeset helpers, but it is
+	 * optional. It's intended to reverse the effects of @atomic_enable.
 	 */
 	void (*atomic_disable)(struct drm_plane *plane,
 			       struct drm_atomic_state *state);
diff --git a/include/drm/drm_panel.h b/include/drm/drm_panel.h
index 432fab2347eb..10015891b056 100644
--- a/include/drm/drm_panel.h
+++ b/include/drm/drm_panel.h
@@ -27,12 +27,14 @@
 #include <linux/err.h>
 #include <linux/errno.h>
 #include <linux/list.h>
+#include <linux/mutex.h>
 
 struct backlight_device;
 struct dentry;
 struct device_node;
 struct drm_connector;
 struct drm_device;
+struct drm_panel_follower;
 struct drm_panel;
 struct display_timing;
 
@@ -144,6 +146,45 @@ struct drm_panel_funcs {
 	void (*debugfs_init)(struct drm_panel *panel, struct dentry *root);
 };
 
+struct drm_panel_follower_funcs {
+	/**
+	 * @panel_prepared:
+	 *
+	 * Called after the panel has been powered on.
+	 */
+	int (*panel_prepared)(struct drm_panel_follower *follower);
+
+	/**
+	 * @panel_unpreparing:
+	 *
+	 * Called before the panel is powered off.
+	 */
+	int (*panel_unpreparing)(struct drm_panel_follower *follower);
+};
+
+struct drm_panel_follower {
+	/**
+	 * @funcs:
+	 *
+	 * Dependent device callbacks; should be initted by the caller.
+	 */
+	const struct drm_panel_follower_funcs *funcs;
+
+	/**
+	 * @list
+	 *
+	 * Used for linking into panel's list; set by drm_panel_add_follower().
+	 */
+	struct list_head list;
+
+	/**
+	 * @panel
+	 *
+	 * The panel we're dependent on; set by drm_panel_add_follower().
+	 */
+	struct drm_panel *panel;
+};
+
 /**
  * struct drm_panel - DRM panel object
  */
@@ -190,6 +231,20 @@ struct drm_panel {
 	struct list_head list;
 
 	/**
+	 * @followers:
+	 *
+	 * A list of struct drm_panel_follower dependent on this panel.
+	 */
+	struct list_head followers;
+
+	/**
+	 * @follower_lock:
+	 *
+	 * Lock for followers list.
+	 */
+	struct mutex follower_lock;
+
+	/**
 	 * @prepare_prev_first:
 	 *
 	 * The previous controller should be prepared first, before the prepare
@@ -198,6 +253,20 @@ struct drm_panel {
 	 * the panel is powered up.
 	 */
 	bool prepare_prev_first;
+
+	/**
+	 * @prepared:
+	 *
+	 * If true then the panel has been prepared.
+	 */
+	bool prepared;
+
+	/**
+	 * @enabled:
+	 *
+	 * If true then the panel has been enabled.
+	 */
+	bool enabled;
 };
 
 void drm_panel_init(struct drm_panel *panel, struct device *dev,
@@ -232,6 +301,33 @@ static inline int of_drm_get_panel_orientation(const struct device_node *np,
 }
 #endif
 
+#if defined(CONFIG_DRM_PANEL)
+bool drm_is_panel_follower(struct device *dev);
+int drm_panel_add_follower(struct device *follower_dev,
+			   struct drm_panel_follower *follower);
+void drm_panel_remove_follower(struct drm_panel_follower *follower);
+int devm_drm_panel_add_follower(struct device *follower_dev,
+				struct drm_panel_follower *follower);
+#else
+static inline bool drm_is_panel_follower(struct device *dev)
+{
+	return false;
+}
+
+static inline int drm_panel_add_follower(struct device *follower_dev,
+					 struct drm_panel_follower *follower)
+{
+	return -ENODEV;
+}
+
+static inline void drm_panel_remove_follower(struct drm_panel_follower *follower) { }
+static inline int devm_drm_panel_add_follower(struct device *follower_dev,
+					      struct drm_panel_follower *follower)
+{
+	return -ENODEV;
+}
+#endif
+
 #if IS_ENABLED(CONFIG_DRM_PANEL) && (IS_BUILTIN(CONFIG_BACKLIGHT_CLASS_DEVICE) || \
 	(IS_MODULE(CONFIG_DRM) && IS_MODULE(CONFIG_BACKLIGHT_CLASS_DEVICE)))
 int drm_panel_of_backlight(struct drm_panel *panel);
diff --git a/include/drm/drm_plane.h b/include/drm/drm_plane.h
index 51291983ea44..79d62856defb 100644
--- a/include/drm/drm_plane.h
+++ b/include/drm/drm_plane.h
@@ -56,7 +56,7 @@ struct drm_plane_state {
 	/**
 	 * @crtc:
 	 *
-	 * Currently bound CRTC, NULL if disabled. Do not this write directly,
+	 * Currently bound CRTC, NULL if disabled. Do not write this directly,
 	 * use drm_atomic_set_crtc_for_plane()
 	 */
 	struct drm_crtc *crtc;
diff --git a/include/drm/drm_prime.h b/include/drm/drm_prime.h
index 2a1d01e5b56b..a7abf9f3e697 100644
--- a/include/drm/drm_prime.h
+++ b/include/drm/drm_prime.h
@@ -60,19 +60,12 @@ enum dma_data_direction;
 
 struct drm_device;
 struct drm_gem_object;
-struct drm_file;
 
 /* core prime functions */
 struct dma_buf *drm_gem_dmabuf_export(struct drm_device *dev,
 				      struct dma_buf_export_info *exp_info);
 void drm_gem_dmabuf_release(struct dma_buf *dma_buf);
 
-int drm_gem_prime_fd_to_handle(struct drm_device *dev,
-			       struct drm_file *file_priv, int prime_fd, uint32_t *handle);
-int drm_gem_prime_handle_to_fd(struct drm_device *dev,
-			       struct drm_file *file_priv, uint32_t handle, uint32_t flags,
-			       int *prime_fd);
-
 /* helper functions for exporting */
 int drm_gem_map_attach(struct dma_buf *dma_buf,
 		       struct dma_buf_attachment *attach);
diff --git a/include/drm/drm_syncobj.h b/include/drm/drm_syncobj.h
index 6cf7243a1dc5..b40052132e52 100644
--- a/include/drm/drm_syncobj.h
+++ b/include/drm/drm_syncobj.h
@@ -54,7 +54,11 @@ struct drm_syncobj {
 	 */
 	struct list_head cb_list;
 	/**
-	 * @lock: Protects &cb_list and write-locks &fence.
+	 * @ev_fd_list: List of registered eventfd.
+	 */
+	struct list_head ev_fd_list;
+	/**
+	 * @lock: Protects &cb_list and &ev_fd_list, and write-locks &fence.
 	 */
 	spinlock_t lock;
 	/**
diff --git a/include/drm/drm_sysfs.h b/include/drm/drm_sysfs.h
index 6273cac44e47..96a5d858404b 100644
--- a/include/drm/drm_sysfs.h
+++ b/include/drm/drm_sysfs.h
@@ -12,6 +12,6 @@ void drm_class_device_unregister(struct device *dev);
 
 void drm_sysfs_hotplug_event(struct drm_device *dev);
 void drm_sysfs_connector_hotplug_event(struct drm_connector *connector);
-void drm_sysfs_connector_status_event(struct drm_connector *connector,
-				      struct drm_property *property);
+void drm_sysfs_connector_property_event(struct drm_connector *connector,
+					struct drm_property *property);
 #endif
diff --git a/include/drm/task_barrier.h b/include/drm/task_barrier.h
index 087e3f649c52..f6e6ed529681 100644
--- a/include/drm/task_barrier.h
+++ b/include/drm/task_barrier.h
@@ -24,8 +24,8 @@
 #include <linux/atomic.h>
 
 /*
- * Reusable 2 PHASE task barrier (randevouz point) implementation for N tasks.
- * Based on the Little book of sempahores - https://greenteapress.com/wp/semaphores/
+ * Reusable 2 PHASE task barrier (rendez-vous point) implementation for N tasks.
+ * Based on the Little book of semaphores - https://greenteapress.com/wp/semaphores/
  */
 
 
diff --git a/include/drm/ttm/ttm_bo.h b/include/drm/ttm/ttm_bo.h
index 8b113c384236..0223a41a64b2 100644
--- a/include/drm/ttm/ttm_bo.h
+++ b/include/drm/ttm/ttm_bo.h
@@ -355,8 +355,6 @@ int ttm_bo_validate(struct ttm_buffer_object *bo,
 void ttm_bo_put(struct ttm_buffer_object *bo);
 void ttm_bo_set_bulk_move(struct ttm_buffer_object *bo,
 			  struct ttm_lru_bulk_move *bulk);
-int ttm_bo_lock_delayed_workqueue(struct ttm_device *bdev);
-void ttm_bo_unlock_delayed_workqueue(struct ttm_device *bdev, int resched);
 bool ttm_bo_eviction_valuable(struct ttm_buffer_object *bo,
 			      const struct ttm_place *place);
 int ttm_bo_init_reserved(struct ttm_device *bdev, struct ttm_buffer_object *bo,