diff --git a/rust/helpers/drm/atomic.c b/rust/helpers/drm/atomic.c
new file mode 100644
index 0000000000000..fff70053f6943
--- /dev/null
+++ b/rust/helpers/drm/atomic.c
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <drm/drm_atomic.h>
+
+void rust_helper_drm_atomic_state_get(struct drm_atomic_state *state)
+{
+	drm_atomic_state_get(state);
+}
+
+void rust_helper_drm_atomic_state_put(struct drm_atomic_state *state)
+{
+	drm_atomic_state_put(state);
+}
+
+// Macros for generating one repetitive atomic state accessors (like drm_atomic_get_new_plane_state)
+#define STATE_FUNC(type, tense)                                                                     \
+	struct drm_ ## type ## _state *rust_helper_drm_atomic_get_ ## tense ## _ ## type ## _state( \
+		const struct drm_atomic_state *state,                                               \
+		struct drm_ ## type *type                                                           \
+	) {                                                                                         \
+		return drm_atomic_get_## tense ## _ ## type ## _state(state, type);                 \
+	}
+#define STATE_FUNCS(type) \
+	STATE_FUNC(type, new); \
+	STATE_FUNC(type, old);
+
+STATE_FUNCS(plane);
+STATE_FUNCS(crtc);
+STATE_FUNCS(connector);
+
+#undef STATE_FUNCS
+#undef STATE_FUNC
diff --git a/rust/helpers/drm/drm.c b/rust/helpers/drm/drm.c
index 028b8ab429572..365f6807774d4 100644
--- a/rust/helpers/drm/drm.c
+++ b/rust/helpers/drm/drm.c
@@ -1,5 +1,8 @@
 // SPDX-License-Identifier: GPL-2.0
 
+#ifdef CONFIG_DRM_KMS_HELPER
+#include "atomic.c"
+#endif
 #include "gem.c"
 #ifdef CONFIG_DRM_GEM_SHMEM_HELPER
 #include "gem_shmem_helper.c"
diff --git a/rust/kernel/drm/kms.rs b/rust/kernel/drm/kms.rs
index d74267c78864f..4ab039d67352e 100644
--- a/rust/kernel/drm/kms.rs
+++ b/rust/kernel/drm/kms.rs
@@ -2,6 +2,7 @@
 
 //! KMS driver abstractions for rust.
 
+pub mod atomic;
 pub mod connector;
 pub mod crtc;
 pub mod encoder;
@@ -248,6 +249,14 @@ pub(crate) fn mode_config_mutex(&self) -> &Mutex<()> {
     pub fn mode_config_lock(&self) -> ModeConfigGuard<'_, T> {
         ModeConfigGuard(self.mode_config_mutex().lock(), PhantomData)
     }
+
+    /// Return the number of registered [`Plane`](plane::Plane) objects on this [`Device`].
+    #[inline]
+    pub fn num_plane(&self) -> i32 {
+        // SAFETY: The only context which this could change is before registration, which must be
+        // single-threaded anyway - so it's safe to just read this value
+        unsafe { (*self.as_raw()).mode_config.num_total_plane }
+    }
 }
 
 /// A modesetting object in DRM.
diff --git a/rust/kernel/drm/kms/atomic.rs b/rust/kernel/drm/kms/atomic.rs
new file mode 100644
index 0000000000000..a4354b89b07cc
--- /dev/null
+++ b/rust/kernel/drm/kms/atomic.rs
@@ -0,0 +1,419 @@
+// SPDX-License-Identifier: GPL-2.0 OR MIT
+
+//! [`struct drm_atomic_state`] related bindings for rust.
+//!
+//! [`struct drm_atomic_state`]: srctree/include/drm/drm_atomic.h
+use alloc::boxed::Box;
+use crate::{
+    bindings,
+    drm::{device::Device, drv::Driver},
+    types::*,
+    error::{from_err_ptr, to_result, from_result},
+    init::Zeroable,
+    prelude::*,
+    private::Sealed
+};
+use core::{
+    marker::*,
+    ptr::NonNull,
+    cell::Cell,
+    ffi::*,
+    slice,
+    ops::*,
+    mem::ManuallyDrop,
+    iter::Iterator,
+};
+use super::{
+    crtc::*,
+    connector::*,
+    plane::*,
+    Kms,
+    KmsDriver,
+    ModeObject
+};
+
+/// The main wrapper around [`struct drm_atomic_state`].
+///
+/// This type is usually embedded within another interface such as an [`AtomicStateMutator`].
+///
+/// # Invariants
+///
+/// - The data layout of this type is identical to [`struct drm_atomic_state`].
+/// - `state` is initialized for as long as this type is exposed to users.
+///
+/// [`struct drm_atomic_state`]: srctree/include/drm/drm_atomic.h
+#[repr(transparent)]
+pub struct AtomicState<T: KmsDriver> {
+    pub(super) state: Opaque<bindings::drm_atomic_state>,
+    _p: PhantomData<T>,
+}
+
+impl<T: KmsDriver> AtomicState<T> {
+    /// Reconstruct an immutable reference to an atomic state from the given pointer
+    ///
+    /// # Safety
+    ///
+    /// `ptr` must point to a valid initialized instance of [`struct drm_atomic_state`].
+    ///
+    /// [`struct drm_atomic_state`]: srctree/include/drm/drm_atomic.h
+    pub(super) unsafe fn from_raw<'a>(ptr: *const bindings::drm_atomic_state) -> &'a Self {
+        // SAFETY: Our data layout is identical
+        unsafe { &*ptr.cast() }
+    }
+
+    pub(crate) fn as_raw(&self) -> *mut bindings::drm_atomic_state {
+        self.state.get()
+    }
+
+    /// Return the [`Device`] associated with this [`AtomicState`].
+    pub fn drm_dev(&self) -> &Device<T> {
+        // SAFETY:
+        // * `state` is initialized via our type invariants.
+        // * `dev` is invariant throughout the lifetime of `AtomicState`
+        unsafe { Device::borrow((*self.state.get()).dev) }
+    }
+
+    /// Return the old atomic state for `crtc`, if it is present within this [`AtomicState`].
+    pub fn get_old_crtc_state<C>(&self, crtc: &C) -> Option<&C::State>
+    where
+        C: AsRawCrtc<Driver = T>,
+    {
+        // SAFETY: This function either returns NULL or a valid pointer to a `drm_crtc_state`
+        unsafe {
+            bindings::drm_atomic_get_old_crtc_state(
+                self.as_raw(),
+                crtc.as_raw()
+            ).as_ref().map(|p| unsafe { C::State::from_raw(p) })
+        }
+    }
+
+    /// Return the old atomic state for `plane`, if it is present within this [`AtomicState`].
+    pub fn get_old_plane_state<P>(&self, plane: &P) -> Option<&P::State>
+    where
+        P: AsRawPlane<Driver = T>,
+    {
+        // SAFETY: This function either returns NULL or a valid pointer to a `drm_plane_state`
+        unsafe {
+            bindings::drm_atomic_get_old_plane_state(
+                self.as_raw(),
+                plane.as_raw()
+            ).as_ref().map(|p| unsafe { P::State::from_raw(p) })
+        }
+    }
+
+    /// Return the old atomic state for `connector` if it is present within this [`AtomicState`].
+    pub fn get_old_connector_state<C>(&self, connector: &C) -> Option<&C::State>
+    where
+        C: AsRawConnector<Driver = T>
+    {
+        // SAFETY: THis function either returns NULL or a valid pointer to a `drm_connector_state`.
+        unsafe {
+            bindings::drm_atomic_get_old_connector_state(
+                self.as_raw(),
+                connector.as_raw()
+            ).as_ref().map(|p| unsafe { C::State::from_raw(p) })
+        }
+    }
+}
+
+// SAFETY: DRM atomic state objects are always reference counted and the get/put functions satisfy
+// the requirements.
+unsafe impl<T: KmsDriver> AlwaysRefCounted for AtomicState<T> {
+    fn inc_ref(&self) {
+        // SAFETY: FFI call with no special requirements
+        unsafe { bindings::drm_atomic_state_get(self.state.get()) }
+    }
+
+    unsafe fn dec_ref(obj: NonNull<Self>) {
+        // SAFETY: FFI calls with no special requirements
+        unsafe { bindings::drm_atomic_state_put(obj.as_ptr().cast()) }
+    }
+}
+
+/// A smart-pointer for modifying the contents of an atomic state.
+///
+/// As it's not unreasonable for a modesetting driver to want to have references to the state of
+/// multiple modesetting objects at once, along with mutating multiple states for unique modesetting
+/// objects at once, this type provides a mechanism for safely doing both of these things.
+///
+/// To honor Rust's aliasing rules regarding mutable references, this structure ensures only one
+/// mutable reference to a mode object's atomic state may exist at a time - and refuses to provide
+/// another if one has already been taken out using runtime checks.
+pub struct AtomicStateMutator<T: KmsDriver> {
+    /// The state being mutated. Note that the use of `ManuallyDrop` here is because mutators are
+    /// only constructed in FFI callbacks and thus borrow their references to the atomic state from
+    /// DRM. Composers, which make use of mutators internally, can potentially be owned by rust code
+    /// if a driver is performing an atomic commit internally - and thus will call the drop
+    /// implementation here.
+    state: ManuallyDrop<ARef<AtomicState<T>>>,
+
+    /// Bitmask of borrowed CRTC state objects
+    pub(super) borrowed_crtcs: Cell<u32>,
+    /// Bitmask of borrowed plane state objects
+    pub(super) borrowed_planes: Cell<u32>,
+    /// Bitmask of borrowed connector state objects
+    pub(super) borrowed_connectors: Cell<u32>,
+}
+
+impl<T: KmsDriver> AtomicStateMutator<T> {
+    /// Construct a new [`AtomicStateMutator`]
+    ///
+    /// # Safety
+    ///
+    /// `ptr` must point to a valid `drm_atomic_state`
+    pub(super) unsafe fn new(ptr: NonNull<bindings::drm_atomic_state>) -> Self {
+        Self {
+            // SAFETY: The data layout of `AtomicState<T>` is identical to drm_atomic_state
+            state: ManuallyDrop::new(unsafe { ARef::from_raw(ptr.cast()) }),
+            borrowed_planes: Cell::default(),
+            borrowed_crtcs: Cell::default(),
+            borrowed_connectors: Cell::default(),
+        }
+    }
+
+    pub(crate) fn as_raw(&self) -> *mut bindings::drm_atomic_state {
+        self.state.as_raw()
+    }
+
+    /// Return the [`Device`] for this [`AtomicStateMutator`]
+    pub fn drm_dev(&self) -> &Device<T> {
+        self.state.drm_dev()
+    }
+
+    /// Retrieve the last committed atomic state for `crtc` if `crtc` has already been added to the
+    /// atomic state being composed.
+    ///
+    /// Returns `None` otherwise.
+    pub fn get_old_crtc_state<C>(&self, crtc: &C) -> Option<&C::State>
+    where
+        C: AsRawCrtc<Driver = T>
+    {
+        self.state.get_old_crtc_state(crtc)
+    }
+
+    /// Retrieve the last committed atomic state for `connector` if `connector` has already been
+    /// added to the atomic state being composed.
+    ///
+    /// Returns `None` otherwise.
+    pub fn get_old_connector_state<C>(&self, connector: &C) -> Option<&C::State>
+    where
+        C: AsRawConnector<Driver = T>
+    {
+        self.state.get_old_connector_state(connector)
+    }
+
+    /// Retrieve the last committed atomic state for `plane` if `plane` has already been added to
+    /// the atomic state being composed.
+    ///
+    /// Returns `None` otherwise.
+    pub fn get_old_plane_state<P>(&self, plane: &P) -> Option<&P::State>
+    where
+        P: AsRawPlane<Driver = T>,
+    {
+        self.state.get_old_plane_state(plane)
+    }
+
+    /// Return a composer for `plane`s new atomic state if it was previously added to the atomic
+    /// state being composed.
+    ///
+    /// Returns `None` otherwise, or if a composer still exists for this state.
+    pub fn get_new_crtc_state<C>(&self, crtc: &C) -> Option<BorrowedCrtcState<'_, C::State>>
+    where
+        C: AsRawCrtc<Driver = T>
+    {
+        // SAFETY: DRM either returns NULL or a valid pointer to a `drm_crtc_state`
+        let state = unsafe {
+            bindings::drm_atomic_get_new_crtc_state(self.as_raw(), crtc.as_raw())
+        };
+
+        BorrowedCrtcState::<C::State>::new(self, NonNull::new(state)?)
+    }
+
+    /// Return a composer for `plane`s new atomic state if it was previously added to the atomic
+    /// state being composed.
+    ///
+    /// Returns `None` otherwise, or if a composer still exists for this state.
+    pub fn get_new_plane_state<P>(&self, plane: &P) -> Option<BorrowedPlaneState<'_, P::State>>
+    where
+        P: AsRawPlane<Driver = T>,
+    {
+        // SAFETY: DRM either returns NULL or a valid pointer to a `drm_plane_state`.
+        let state = unsafe {
+            bindings::drm_atomic_get_new_plane_state(self.as_raw(), plane.as_raw())
+        };
+
+        BorrowedPlaneState::<P::State>::new(self, NonNull::new(state)?)
+    }
+
+    /// Return a composer for `crtc`s new atomic state if it was previously added to the atomic
+    /// state being composed.
+    ///
+    /// Returns `None` otherwise, or if a composer still exists for this state.
+    pub fn get_new_connector_state<C>(
+        &self,
+        connector: &C
+    ) -> Option<BorrowedConnectorState<'_, C::State>>
+    where
+        C: AsRawConnector<Driver = T>,
+    {
+        // SAFETY: DRM either returns NULL or a valid pointer to a `drm_connector_state`
+        let state = unsafe {
+            bindings::drm_atomic_get_new_connector_state(self.as_raw(), connector.as_raw())
+        };
+
+        BorrowedConnectorState::<C::State>::new(self, NonNull::new(state)?)
+    }
+
+    /// Iterate through each of the planes (regardless of type) currently in this atomic state.
+    pub fn iter_planes(&self) -> AtomicStatePlaneIter<'_, T> {
+        AtomicStatePlaneIter::new(&self.state)
+    }
+}
+
+/// An [`AtomicStateMutator`] wrapper which is not yet part of any commit operation.
+///
+/// Since it's not yet part of a commit operation, new mode objects may be added to the state. It
+/// also holds a reference to the underlying [`AtomicState`] that will be released when this object
+/// is dropped.
+pub struct AtomicStateComposer<T: KmsDriver>(AtomicStateMutator<T>);
+
+impl<T: KmsDriver> Deref for AtomicStateComposer<T> {
+    type Target = AtomicStateMutator<T>;
+
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+
+impl<T: KmsDriver> Drop for AtomicStateComposer<T> {
+    fn drop(&mut self) {
+        // SAFETY: We're in drop, so this is guaranteed to be the last possible reference
+        unsafe { ManuallyDrop::drop(&mut self.0.state) }
+    }
+}
+
+impl<T: KmsDriver> AtomicStateComposer<T> {
+    /// # Safety
+    ///
+    /// The caller guarantees that `ptr` points to a valid instance of `drm_atomic_state`.
+    pub(crate) unsafe fn new(ptr: NonNull<bindings::drm_atomic_state>) -> Self {
+        // SAFETY: see `AtomicStateMutator::from_raw()`
+         Self(unsafe { AtomicStateMutator::new(ptr) })
+    }
+
+    /// Attempt to add the state for `crtc` to the atomic state for this composer if it hasn't
+    /// already been added, and create a mutator for it.
+    ///
+    /// If a composer already exists for this `crtc`, this function returns `Error(EBUSY)`. If
+    /// attempting to add the state fails, another error code will be returned.
+    pub fn add_crtc_state<C>(&self, crtc: &C) -> Result<BorrowedCrtcState<'_, C::State>>
+    where
+        C: AsRawCrtc<Driver = T>
+    {
+        // SAFETY: DRM will only return a valid pointer to a [`drm_crtc_state`] - or an error.
+        let state = unsafe {
+            from_err_ptr(
+                bindings::drm_atomic_get_crtc_state(self.as_raw(), crtc.as_raw())
+            ).map(|c| NonNull::new_unchecked(c))
+        }?;
+
+        BorrowedCrtcState::<C::State>::new(self, state).ok_or(EBUSY)
+    }
+
+    /// Attempt to add the state for `plane` to the atomic state for this composer if it hasn't
+    /// already been added, and create a mutator for it.
+    ///
+    /// If a composer already exists for this `plane`, this function returns `Error(EBUSY)`. If
+    /// attempting to add the state fails, another error code will be returned.
+    pub fn add_plane_state<P>(&self, plane: &P) -> Result<BorrowedPlaneState<'_, P::State>>
+    where
+        P: AsRawPlane<Driver = T>,
+    {
+        // SAFETY: DRM will only return a valid pointer to a [`drm_plane_state`] - or an error.
+        let state = unsafe {
+            from_err_ptr(
+                bindings::drm_atomic_get_plane_state(self.as_raw(), plane.as_raw())
+            ).map(|p| NonNull::new_unchecked(p))
+        }?;
+
+        BorrowedPlaneState::<P::State>::new(self, state).ok_or(EBUSY)
+    }
+
+    /// Attempt to add the state for `connector` to the atomic state for this composer if it hasn't
+    /// already been added, and create a mutator for it.
+    ///
+    /// If a composer already exists for this `connector`, this function returns `Error(EBUSY)`. If
+    /// attempting to add the state fails, another error code will be returned.
+    pub fn add_connector_state<C>(
+        &self,
+        connector: &C
+    ) -> Result<BorrowedConnectorState<'_, C::State>>
+    where
+        C: AsRawConnector<Driver = T>,
+    {
+        // SAFETY: DRM will only return a valid pointer to a [`drm_plane_state`] - or an error.
+        let state = unsafe {
+            from_err_ptr(
+                bindings::drm_atomic_get_connector_state(self.as_raw(), connector.as_raw())
+            ).map(|c| NonNull::new_unchecked(c))
+        }?;
+
+        BorrowedConnectorState::<C::State>::new(self, state).ok_or(EBUSY)
+    }
+
+    /// Attempt to add any planes affected by changes on `crtc` to this [`AtomicStateComposer`].
+    ///
+    /// Will return an [`Error`] if this fails.
+    pub fn add_affected_planes(&self, crtc: &impl AsRawCrtc<Driver = T>) -> Result {
+        // SAFETY: FFI call with no special safety requirements
+        to_result(unsafe {
+            bindings::drm_atomic_add_affected_planes(self.as_raw(), crtc.as_raw())
+        })
+    }
+}
+
+/// An iterator which goes through each DRM plane currently in an atomic state.
+///
+/// Note that this iterator will return [`OpaquePlane`]s, because it's entirely possible for a
+/// driver to have multiple implementations of [`DriverPlane`] - so we don't know what the fully
+/// qualified type of each plane is.
+pub struct AtomicStatePlaneIter<'a, T: KmsDriver> {
+    state: &'a AtomicState<T>,
+    current_idx: u8,
+}
+
+impl<'a, T: KmsDriver> Iterator for AtomicStatePlaneIter<'a, T> {
+    type Item = &'a OpaquePlane<T>;
+
+    fn next(&mut self) -> Option<Self::Item> {
+        let ptr = self.state.state.get();
+
+        // SAFETY: `planes` is initialized by the time we expose AtomicState<T> through any form to
+        // users. And because we don't allow state mutation outside of mutators, which are single
+        // threaded, the contents of this struct are at least guaranteed not to change through the
+        // duration of this borrow.
+        let planes: &[bindings::__drm_planes_state] = unsafe {
+            slice::from_raw_parts((*ptr).planes.cast_const(), self.state.drm_dev().num_plane() as _)
+        };
+
+        for plane_states in &planes[self.current_idx as _..] {
+            self.current_idx += 1;
+            if !plane_states.ptr.is_null() {
+                // SAFETY: OpaquePlane has an identical data layout, and its only possible values
+                // are NULL or pointing at a valid drm_plane
+                return Some(unsafe { OpaquePlane::from_raw(plane_states.ptr) });
+            }
+        }
+
+        None
+    }
+}
+
+impl<'a, T: KmsDriver> AtomicStatePlaneIter<'a, T> {
+    fn new(state: &'a AtomicState<T>) -> AtomicStatePlaneIter<'a, T> {
+        Self {
+            current_idx: 0,
+            state
+        }
+    }
+}
diff --git a/rust/kernel/drm/kms/connector.rs b/rust/kernel/drm/kms/connector.rs
index f62740d7f6469..6fcfce8b48c64 100644
--- a/rust/kernel/drm/kms/connector.rs
+++ b/rust/kernel/drm/kms/connector.rs
@@ -31,6 +31,7 @@
     ModeConfigGuard,
     encoder::*,
     KmsDriver,
+    atomic::*,
 };
 use macros::pin_data;
 
@@ -679,6 +680,80 @@ unsafe fn from_raw_mut<'a>(ptr: *mut bindings::drm_connector_state) -> &'a mut S
     }
 }
 
+/// An interface for mutating a [`Connector`]s atomic state.
+///
+/// This type is typically returned by an [`AtomicStateMutator`] within contexts where it is
+/// possible to safely mutate a connector's state. In order to uphold rust's data-aliasing rules,
+/// only [`BorrowedConnectorState`] may exist at a time.
+pub struct BorrowedConnectorState<'a, T: FromRawConnectorState> {
+    state: &'a mut T,
+    mask: &'a Cell<u32>
+}
+
+impl<'a, T: FromRawConnectorState> BorrowedConnectorState<'a, T> {
+    pub(super) fn new<D: KmsDriver>(
+        mutator: &'a AtomicStateMutator<D>,
+        state: NonNull<bindings::drm_connector_state>
+    ) -> Option<Self> {
+        // SAFETY: `connector` is invariant throughout the lifetime of the atomic state, is
+        // initialized by this point, and we're guaranteed it is of type `OpaqueConnector<T>` by
+        // type invariance
+        let connector = unsafe { T::Connector::from_raw((*state.as_ptr()).connector) };
+        let conn_mask = connector.mask();
+        let borrowed_mask = mutator.borrowed_connectors.get();
+
+        if borrowed_mask & conn_mask == 0 {
+            mutator.borrowed_connectors.set(borrowed_mask | conn_mask);
+            Some(Self {
+                mask: &mutator.borrowed_connectors,
+                // SAFETY: We're guaranteed `state` is of `ConnectorState<T>` by type invariance,
+                // and we just confirmed by checking `borrowed_connectors` that no other mutable
+                // borrows have been taken out for `state`
+                state: unsafe { T::from_raw_mut(state.as_ptr()) },
+            })
+        } else {
+            // TODO: Print a kernel warning here, this is a user error
+            None
+        }
+    }
+}
+
+impl<'a, T: DriverConnectorState> Deref for BorrowedConnectorState<'a, ConnectorState<T>> {
+    type Target = T;
+
+    fn deref(&self) -> &Self::Target {
+        &self.state.inner
+    }
+}
+
+impl<'a, T: DriverConnectorState> DerefMut for BorrowedConnectorState<'a, ConnectorState<T>> {
+    fn deref_mut(&mut self) -> &mut Self::Target {
+        &mut self.state.inner
+    }
+}
+
+impl<'a, T: FromRawConnectorState> Drop for BorrowedConnectorState<'a, T> {
+    fn drop(&mut self) {
+        let mask = self.state.connector().mask();
+        self.mask.set(self.mask.get() & !mask);
+    }
+}
+
+impl<'a, T: FromRawConnectorState> AsRawConnectorState for BorrowedConnectorState<'a, T> {
+    type Connector = T::Connector;
+}
+
+impl<'a, T: FromRawConnectorState> private::AsRawConnectorState for BorrowedConnectorState<'a, T> {
+    fn as_raw(&self) -> &bindings::drm_connector_state {
+        self.state.as_raw()
+    }
+
+    unsafe fn as_raw_mut(&mut self) -> &mut bindings::drm_connector_state {
+        // SAFETY: We're bound by the same safety contract as this function
+        unsafe { self.state.as_raw_mut() }
+    }
+}
+
 unsafe extern "C" fn atomic_duplicate_state_callback<T: DriverConnectorState>(
     connector: *mut bindings::drm_connector
 ) -> *mut bindings::drm_connector_state
diff --git a/rust/kernel/drm/kms/crtc.rs b/rust/kernel/drm/kms/crtc.rs
index 246d15a15c14d..7864540705f76 100644
--- a/rust/kernel/drm/kms/crtc.rs
+++ b/rust/kernel/drm/kms/crtc.rs
@@ -3,6 +3,7 @@
 //! KMS driver abstractions for rust.
 
 use super::{
+    atomic::*,
     plane::*,
     ModeObject,
     StaticModeObject,
@@ -552,6 +553,80 @@ unsafe fn from_raw<'a>(ptr: *const bindings::drm_crtc_state) -> &'a Self {
         unsafe { &*(ptr.cast()) }
     }
 }
+
+/// An interface for mutating a [`Crtc`]s atomic state.
+///
+/// This type is typically returned by an [`AtomicStateMutator`] within contexts where it is
+/// possible to safely mutate a plane's state. In order to uphold rust's data-aliasing rules, only
+/// [`BorrowedCrtcState`] may exist at a time.
+///
+/// # Invariants
+///
+/// `self.state` always points to a valid instance of a [`FromRawCrtcState`] object.
+pub struct BorrowedCrtcState<'a, T: FromRawCrtcState> {
+    state: NonNull<T>,
+    mask: &'a Cell<u32>,
+}
+
+impl<'a, T: FromRawCrtcState> BorrowedCrtcState<'a, T> {
+    pub(super) fn new<D: KmsDriver>(
+        mutator: &'a AtomicStateMutator<D>,
+        state: NonNull<bindings::drm_crtc_state>
+    ) -> Option<Self> {
+        // SAFETY: `crtc` is invariant throughout the lifetime of the atomic state, and always
+        // points to a valid `Crtc<T::Crtc>`
+        let crtc = unsafe { T::Crtc::from_raw((*state.as_ptr()).crtc) };
+        let crtc_mask = crtc.mask();
+        let borrowed_mask = mutator.borrowed_crtcs.get();
+
+        if borrowed_mask & crtc_mask == 0 {
+            mutator.borrowed_crtcs.set(borrowed_mask | crtc_mask);
+            Some(Self {
+                mask: &mutator.borrowed_crtcs,
+                state: state.cast()
+            })
+        } else {
+            None
+        }
+    }
+}
+
+impl<'a, T: FromRawCrtcState> Drop for BorrowedCrtcState<'a, T> {
+    fn drop(&mut self) {
+        // SAFETY: Our interface is proof that we are the only ones with a reference to this data
+        let mask = unsafe { self.state.as_ref() }.crtc().mask();
+        self.mask.set(self.mask.get() & !mask);
+    }
+}
+
+impl<'a, T: DriverCrtcState> Deref for BorrowedCrtcState<'a, CrtcState<T>> {
+    type Target = T;
+
+    fn deref(&self) -> &Self::Target {
+        // SAFETY: Our interface ensures that `self.state.inner` follows rust's data-aliasing rules,
+        // so this is safe
+        unsafe { &*(*self.state.as_ptr()).inner.get() }
+    }
+}
+
+impl<'a, T: DriverCrtcState> DerefMut for BorrowedCrtcState<'a, CrtcState<T>> {
+    fn deref_mut(&mut self) -> &mut Self::Target {
+        // SAFETY: Our interface ensures that `self.state.inner` follows rust's data-aliasing rules,
+        // so this is safe
+        unsafe { (*self.state.as_ptr()).inner.get_mut() }
+    }
+}
+
+impl<'a, T: FromRawCrtcState> AsRawCrtcState for BorrowedCrtcState<'a, T> {
+    type Crtc = T::Crtc;
+}
+
+impl<'a, T: FromRawCrtcState> private::AsRawCrtcState for BorrowedCrtcState<'a, T> {
+    fn as_raw(&self) -> *mut bindings::drm_crtc_state {
+        self.state.as_ptr().cast()
+    }
+}
+
 unsafe extern "C" fn crtc_destroy_callback<T: DriverCrtc>(
     crtc: *mut bindings::drm_crtc
 ) {
diff --git a/rust/kernel/drm/kms/plane.rs b/rust/kernel/drm/kms/plane.rs
index 1c151ae3b3dcc..d6e11a65cc101 100644
--- a/rust/kernel/drm/kms/plane.rs
+++ b/rust/kernel/drm/kms/plane.rs
@@ -29,6 +29,7 @@
     UnregisteredKmsDevice,
     ModeObject,
     StaticModeObject,
+    atomic::*,
 };
 
 /// The main trait for implementing the [`struct drm_plane`] API for [`Plane`]
@@ -597,6 +598,82 @@ unsafe fn from_raw_mut<'a>(ptr: *mut bindings::drm_plane_state) -> &'a mut Self
         unsafe { &mut *ptr.cast() }
     }
 }
+
+/// An interface for mutating a [`Plane`]s atomic state.
+///
+/// This type is typically returned by an [`AtomicStateMutator`] within contexts where it is
+/// possible to safely mutate a plane's state. In order to uphold rust's data-aliasing rules, only
+/// [`BorrowedPlaneState`] may exist at a time.
+pub struct BorrowedPlaneState<'a, T: FromRawPlaneState> {
+    state: &'a mut T,
+    mask: &'a Cell<u32>
+}
+
+impl<'a, T: FromRawPlaneState> BorrowedPlaneState<'a, T> {
+    pub(super) fn new<D: KmsDriver>(
+        mutator: &'a AtomicStateMutator<D>,
+        state: NonNull<bindings::drm_plane_state>
+    ) -> Option<Self> {
+        // SAFETY: `plane` is invariant throughout the lifetime of the atomic state, is
+        // initialized by this point, and we're guaranteed it is of type `AsRawPlane` by type
+        // invariance
+        let plane = unsafe { T::Plane::from_raw((*state.as_ptr()).plane) };
+        let plane_mask = plane.mask();
+        let borrowed_mask = mutator.borrowed_planes.get();
+
+        if borrowed_mask & plane_mask == 0 {
+            mutator.borrowed_planes.set(borrowed_mask | plane_mask);
+            Some(Self {
+                mask: &mutator.borrowed_planes,
+                // SAFETY: We're guaranteed `state` is of `FromRawPlaneState` by type invariance,
+                // and we just confirmed by checking `borrowed_planes` that no other mutable borrows
+                // have been taken out for `state`
+                state: unsafe { T::from_raw_mut(state.as_ptr()) },
+            })
+        } else {
+            None
+        }
+    }
+}
+
+impl<'a, T: FromRawPlaneState> Drop for BorrowedPlaneState<'a, T> {
+    fn drop(&mut self) {
+        let mask = self.state.plane().mask();
+        self.mask.set(self.mask.get() & !mask);
+    }
+}
+
+impl<'a, T: FromRawPlaneState> AsRawPlaneState for BorrowedPlaneState<'a, T> {
+    type Plane = T::Plane;
+}
+
+impl<'a, T: FromRawPlaneState> private::AsRawPlaneState for BorrowedPlaneState<'a, T> {
+    fn as_raw(&self) -> &bindings::drm_plane_state {
+        self.state.as_raw()
+    }
+
+    unsafe fn as_raw_mut(&mut self) -> &mut bindings::drm_plane_state {
+        // SAFETY: This function is bound by the same safety contract as `self.inner.as_raw_mut()`
+        unsafe { self.state.as_raw_mut() }
+    }
+}
+
+impl<'a, T: FromRawPlaneState> Sealed for BorrowedPlaneState<'a, T> {}
+
+impl<'a, T: DriverPlaneState> Deref for BorrowedPlaneState<'a, PlaneState<T>> {
+    type Target = T;
+
+    fn deref(&self) -> &Self::Target {
+        &self.state.inner
+    }
+}
+
+impl<'a, T: DriverPlaneState> DerefMut for BorrowedPlaneState<'a, PlaneState<T>> {
+    fn deref_mut(&mut self) -> &mut Self::Target {
+        &mut self.state.inner
+    }
+}
+
 unsafe extern "C" fn plane_destroy_callback<T: DriverPlane>(
     plane: *mut bindings::drm_plane
 ) {
