Merge branch 'next' into for-linus

Prepare input updates for 7.1 merge window.

28 files changed, 4995 insertions, 126 deletions

diff --git a/Documentation/gpu/amdgpu/amd_overview_block.svg b/Documentation/gpu/amdgpu/amd_overview_block.svg
new file mode 100644
index 000000000000..cbd705afc9e2
--- /dev/null
+++ b/Documentation/gpu/amdgpu/amd_overview_block.svg
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diff --git a/Documentation/gpu/amdgpu/amdgpu-glossary.rst b/Documentation/gpu/amdgpu/amdgpu-glossary.rst
index 30812d9d53c6..033167025fcc 100644
--- a/Documentation/gpu/amdgpu/amdgpu-glossary.rst
+++ b/Documentation/gpu/amdgpu/amdgpu-glossary.rst
@@ -30,6 +30,15 @@ we have a dedicated glossary for Display Core at
     CP
       Command Processor
 
+    CPC
+      Command Processor Compute
+
+    CPF
+      Command Processor Fetch
+
+    CPG
+      Command Processor Graphics
+
     CPLIB
       Content Protection Library
 
@@ -78,6 +87,9 @@ we have a dedicated glossary for Display Core at
     GMC
       Graphic Memory Controller
 
+    GPR
+      General Purpose Register
+
     GPUVM
       GPU Virtual Memory.  This is the GPU's MMU.  The GPU supports multiple
       virtual address spaces that can be in flight at any given time.  These
@@ -92,9 +104,15 @@ we have a dedicated glossary for Display Core at
       table for use by the kernel driver or into per process GPUVM page tables
       for application usage.
 
+    GWS
+      Global Wave Sync
+
     IH
       Interrupt Handler
 
+    IV
+      Interrupt Vector
+
     HQD
       Hardware Queue Descriptor
 
@@ -143,15 +161,24 @@ we have a dedicated glossary for Display Core at
     PA
       Primitive Assembler / Physical Address
 
+    PDE
+      Page Directory Entry
+
     PFP
       Pre-Fetch Parser (Graphics)
 
     PPLib
       PowerPlay Library - PowerPlay is the power management component.
 
+    PRT
+      Partially Resident Texture (also known as sparse residency)
+
     PSP
         Platform Security Processor
 
+    PTE
+      Page Table Entry
+
     RB
       Render Backends. Some people called it ROPs.
 
@@ -206,12 +233,33 @@ we have a dedicated glossary for Display Core at
     TC
       Texture Cache
 
+    TCP (AMDGPU)
+      Texture Cache per Pipe. Even though the name "Texture" is part of this
+      acronym, the TCP represents the path to memory shaders; i.e., it is not
+      related to texture. The name is a leftover from older designs where shader
+      stages had different cache designs; it refers to the L1 cache in older
+      architectures.
+
+    TMR
+      Trusted Memory Region
+
+    TMZ
+      Trusted Memory Zone
+
     TOC
       Table of Contents
 
+    UMC
+      Unified Memory Controller
+
     UMSCH
       User Mode Scheduler
 
+    UTC (AMDGPU)
+      Unified Translation Cache. UTC is equivalent to TLB. You might see a
+      variation of this acronym with L at the end, i.e., UTCL followed by a
+      number; L means the cache level (e.g., UTCL1 and UTCL2).
+
     UVD
       Unified Video Decoder
 
diff --git a/Documentation/gpu/amdgpu/apu-asic-info-table.csv b/Documentation/gpu/amdgpu/apu-asic-info-table.csv
index dee5f663a47f..f4c0f93c0582 100644
--- a/Documentation/gpu/amdgpu/apu-asic-info-table.csv
+++ b/Documentation/gpu/amdgpu/apu-asic-info-table.csv
@@ -16,3 +16,6 @@ Ryzen AI 300 series, Strix Point, 3.5.0, 11.5.0, 4.0.5, 6.1.0, 14.0.0, 14.0.0
 Ryzen AI 330 series, Krackan Point, 3.6.0, 11.5.3, 4.0.5, 6.1.3, 14.0.5, 14.0.5
 Ryzen AI 350 series, Krackan Point, 3.5.0, 11.5.2, 4.0.5, 6.1.2, 14.0.4, 14.0.4
 Ryzen AI Max 300 series, Strix Halo, 3.5.1, 11.5.1, 4.0.6, 6.1.1, 14.0.1, 14.0.1
+Ryzen AI 9 475 / 470 / 465, Gorgon Point, 3.5.0, 11.5.0, 4.0.5, 6.1.0, 14.0.0, 14.0.0
+Ryzen AI 7 450, Gorgon Point, 3.5.0, 11.5.2, 4.0.5, 6.1.2, 14.0.4, 14.0.4
+Ryzen AI 5 440 / 435, Gorgon Point, 3.6.0, 11.5.3, 4.0.5, 6.1.3, 14.0.5, 14.0.5
diff --git a/Documentation/gpu/amdgpu/display/dc-glossary.rst b/Documentation/gpu/amdgpu/display/dc-glossary.rst
index cbe737d1fcea..accb7c05308c 100644
--- a/Documentation/gpu/amdgpu/display/dc-glossary.rst
+++ b/Documentation/gpu/amdgpu/display/dc-glossary.rst
@@ -221,9 +221,6 @@ consider asking on the amd-gfx mailing list and update this page.
     TMDS
       Transition-Minimized Differential Signaling
 
-    TMZ
-      Trusted Memory Zone
-
     TTU
       Time to Underflow
 
diff --git a/Documentation/gpu/amdgpu/driver-core.rst b/Documentation/gpu/amdgpu/driver-core.rst
index 3ce276272171..2c2bbf7caf1a 100644
--- a/Documentation/gpu/amdgpu/driver-core.rst
+++ b/Documentation/gpu/amdgpu/driver-core.rst
@@ -77,6 +77,37 @@ VCN (Video Core Next)
     decode.  It's exposed to userspace for user mode drivers (VA-API,
     OpenMAX, etc.)
 
+It is important to note that these blocks can interact with each other. The
+picture below illustrates some of the components and their interconnection:
+
+.. kernel-figure:: amd_overview_block.svg
+
+In the diagram, memory-related blocks are shown in green. Notice that specific
+IPs have a green square that represents a small hardware block named 'hub',
+which is responsible for interfacing with memory. All memory hubs are connected
+in the UMCs, which in turn are connected to memory blocks. As a note,
+pre-vega devices have a dedicated block for the Graphic Memory Controller
+(GMC), which was replaced by UMC and hubs in new architectures. In the driver
+code, you can identify this component by looking for the suffix hub, for
+example: gfxhub, dchub, mmhub, vmhub, etc. Keep in mind that the component's
+interaction with the memory block may vary across architectures. For example,
+on Navi and newer, GC and SDMA are both attached to GCHUB; on pre-Navi, SDMA
+goes through MMHUB; VCN, JPEG, and VPE go through MMHUB; DCN goes through
+DCHUB.
+
+There is some protection for certain memory elements, and the PSP plays an
+essential role in this area. When a specific firmware is loaded into memory,
+the PSP takes steps to ensure it has a valid signature. It also stores firmware
+images in a protected memory area named Trusted Memory Area (TMR), so the OS or
+driver can't corrupt them at runtime. Another use of PSP is to support Trusted
+Applications (TA), which are basically small applications that run on the
+trusted processor and handles a trusted operation (e.g., HDCP). PSP is also
+used for encrypted memory for content protection via Trusted Memory Zone (TMZ).
+
+Another critical IP is the SMU. It handles reset distribution, as well as
+clock, thermal, and power management for all IPs on the SoC. SMU also helps to
+balance performance and power consumption.
+
 .. _pipes-and-queues-description:
 
 GFX, Compute, and SDMA Overall Behavior
diff --git a/Documentation/gpu/amdgpu/driver-misc.rst b/Documentation/gpu/amdgpu/driver-misc.rst
index 25b0c857816e..e1a964c3add2 100644
--- a/Documentation/gpu/amdgpu/driver-misc.rst
+++ b/Documentation/gpu/amdgpu/driver-misc.rst
@@ -128,3 +128,29 @@ smartshift_bias
 
 .. kernel-doc:: drivers/gpu/drm/amd/pm/amdgpu_pm.c
    :doc: smartshift_bias
+
+UMA Carveout
+============
+
+Some versions of Atom ROM expose available options for the VRAM carveout sizes,
+and allow changes to the carveout size via the ATCS function code 0xA on supported
+BIOS implementations.
+
+For those platforms, users can use the following files under uma/ to set the
+carveout size, in a way similar to what Windows users can do in the "Tuning"
+tab in AMD Adrenalin.
+
+Note that for BIOS implementations that don't support this, these files will not
+be created at all.
+
+uma/carveout_options
+--------------------
+
+.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+   :doc: uma/carveout_options
+
+uma/carveout
+--------------------
+
+.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+   :doc: uma/carveout
diff --git a/Documentation/gpu/amdgpu/enforce_isolation.svg b/Documentation/gpu/amdgpu/enforce_isolation.svg
new file mode 100644
index 000000000000..2630681f1cb9
--- /dev/null
+++ b/Documentation/gpu/amdgpu/enforce_isolation.svg
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diff --git a/Documentation/gpu/amdgpu/gc/index.rst b/Documentation/gpu/amdgpu/gc/index.rst
index ff6e9ef5cbee..b6b583c9dc6a 100644
--- a/Documentation/gpu/amdgpu/gc/index.rst
+++ b/Documentation/gpu/amdgpu/gc/index.rst
@@ -7,19 +7,21 @@
 The relationship between the CPU and GPU can be described as the
 producer-consumer problem, where the CPU fills out a buffer with operations
 (producer) to be executed by the GPU (consumer). The requested operations in
-the buffer are called Command Packets, which can be summarized as a compressed
-way of transmitting command information to the graphics controller.
+the buffer are called **Command Packets**, which can be summarized as a
+compressed way of transmitting command information to the graphics controller.
 
 The component that acts as the front end between the CPU and the GPU is called
-the Command Processor (CP). This component is responsible for providing greater
-flexibility to the GC since CP makes it possible to program various aspects of
-the GPU pipeline. CP also coordinates the communication between the CPU and GPU
-via a mechanism named **Ring Buffers**, where the CPU appends information to
-the buffer while the GPU removes operations. It is relevant to highlight that a
-CPU can add a pointer to the Ring Buffer that points to another region of
-memory outside the Ring Buffer, and CP can handle it; this mechanism is called
-**Indirect Buffer (IB)**. CP receives and parses the Command Streams (CS), and
-writes the operations to the correct hardware blocks.
+**Command Processor (CP)**. This component is responsible for providing greater
+flexibility to the **Graphics and Compute (GC)** since CP makes it possible to
+program various aspects of the GPU pipeline. CP also coordinates the
+communication between the CPU and GPU via a mechanism named **Ring Buffers**,
+where the CPU appends information to the buffer while the GPU removes
+operations. CP is also responsible for handling **Indirect Buffers (IB)**.
+
+For reference, internally the CP consists of several sub-blocks (CPC - CP
+compute, CPG - CP graphics, and CPF - CP fetcher). Some of these acronyms
+appear in register names, but this is more of an implementation detail and not
+something that directly impacts driver programming or debugging.
 
 Graphics (GFX) and Compute Microcontrollers
 -------------------------------------------
diff --git a/Documentation/gpu/amdgpu/gfx_pipeline_seq.svg b/Documentation/gpu/amdgpu/gfx_pipeline_seq.svg
new file mode 100644
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diff --git a/Documentation/gpu/amdgpu/index.rst b/Documentation/gpu/amdgpu/index.rst
index 45523e9860fc..8732084186a4 100644
--- a/Documentation/gpu/amdgpu/index.rst
+++ b/Documentation/gpu/amdgpu/index.rst
@@ -8,6 +8,7 @@ Next (GCN), Radeon DNA (RDNA), and Compute DNA (CDNA) architectures.
 .. toctree::
 
    driver-core
+   ring-buffer
    amd-hardware-list-info
    module-parameters
    gc/index
diff --git a/Documentation/gpu/amdgpu/no_enforce_isolation.svg b/Documentation/gpu/amdgpu/no_enforce_isolation.svg
new file mode 100644
index 000000000000..b224615e1611
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diff --git a/Documentation/gpu/amdgpu/process-isolation.rst b/Documentation/gpu/amdgpu/process-isolation.rst
index 25b06ffefc33..03c4288aa8b1 100644
--- a/Documentation/gpu/amdgpu/process-isolation.rst
+++ b/Documentation/gpu/amdgpu/process-isolation.rst
@@ -1,3 +1,4 @@
+.. _amdgpu-process-isolation:
 .. SPDX-License-Identifier: GPL-2.0
 
 =========================
diff --git a/Documentation/gpu/amdgpu/ring-buffer.rst b/Documentation/gpu/amdgpu/ring-buffer.rst
new file mode 100644
index 000000000000..cc642c21316b
--- /dev/null
+++ b/Documentation/gpu/amdgpu/ring-buffer.rst
@@ -0,0 +1,95 @@
+=============
+ Ring Buffer
+=============
+
+To handle communication between user space and kernel space, AMD GPUs use a
+ring buffer design to feed the engines (GFX, Compute, SDMA, UVD, VCE, VCN, VPE,
+etc.). See the figure below that illustrates how this communication works:
+
+.. kernel-figure:: ring_buffers.svg
+
+Ring buffers in the amdgpu work as a producer-consumer model, where userspace
+acts as the producer, constantly filling the ring buffer with GPU commands to
+be executed. Meanwhile, the GPU retrieves the information from the ring, parses
+it, and distributes the specific set of instructions between the different
+amdgpu blocks.
+
+Notice from the diagram that the ring has a Read Pointer (rptr), which
+indicates where the engine is currently reading packets from the ring, and a
+Write Pointer (wptr), which indicates how many packets software has added to
+the ring. When the rptr and wptr are equal, the ring is idle. When software
+adds packets to the ring, it updates the wptr, this causes the engine to start
+fetching and processing packets. As the engine processes packets, the rptr gets
+updates until the rptr catches up to the wptr and they are equal again.
+
+Usually, ring buffers in the driver have a limited size (search for occurrences
+of `amdgpu_ring_init()`). One of the reasons for the small ring buffer size is
+that CP (Command Processor) is capable of following addresses inserted into the
+ring; this is illustrated in the image by the reference to the IB (Indirect
+Buffer). The IB gives userspace the possibility to have an area in memory that
+CP can read and feed the hardware with extra instructions.
+
+All ASICs pre-GFX11 use what is called a kernel queue, which means
+the ring is allocated in kernel space and has some restrictions, such as not
+being able to be :ref:`preempted directly by the scheduler<amdgpu-mes>`. GFX11
+and newer support kernel queues, but also provide a new mechanism named
+:ref:`user queues<amdgpu-userq>`, where the queue is moved to the user space
+and can be mapped and unmapped via the scheduler. In practice, both queues
+insert user-space-generated GPU commands from different jobs into the requested
+component ring.
+
+Enforce Isolation
+=================
+
+.. note:: After reading this section, you might want to check the
+   :ref:`Process Isolation<amdgpu-process-isolation>` page for more details.
+
+Before examining the Enforce Isolation mechanism in the ring buffer context, it
+is helpful to briefly discuss how instructions from the ring buffer are
+processed in the graphics pipeline. Let’s expand on this topic by checking the
+diagram below that illustrates the graphics pipeline:
+
+.. kernel-figure:: gfx_pipeline_seq.svg
+
+In terms of executing instructions, the GFX pipeline follows the sequence:
+Shader Export (SX), Geometry Engine (GE), Shader Process or Input (SPI), Scan
+Converter (SC), Primitive Assembler (PA), and cache manipulation (which may
+vary across ASICs). Another common way to describe the pipeline is to use Pixel
+Shader (PS), raster, and Vertex Shader (VS) to symbolize the two shader stages.
+Now, with this pipeline in mind, let's assume that Job B causes a hang issue,
+but Job C's instruction might already be executing, leading developers to
+incorrectly identify Job C as the problematic one. This problem can be
+mitigated on multiple levels; the diagram below illustrates how to minimize
+part of this problem:
+
+.. kernel-figure:: no_enforce_isolation.svg
+
+Note from the diagram that there is no guarantee of order or a clear separation
+between instructions, which is not a problem most of the time, and is also good
+for performance. Furthermore, notice some circles between jobs in the diagram
+that represent a **fence wait** used to avoid overlapping work in the ring. At
+the end of the fence, a cache flush occurs, ensuring that when the next job
+starts, it begins in a clean state and, if issues arise, the developer can
+pinpoint the problematic process more precisely.
+
+To increase the level of isolation between jobs, there is the "Enforce
+Isolation" method described in the picture below:
+
+.. kernel-figure:: enforce_isolation.svg
+
+As shown in the diagram, enforcing isolation introduces ordering between
+submissions, since the access to GFX/Compute is serialized, think about it as
+single process at a time mode for gfx/compute. Notice that this approach has a
+significant performance impact, as it allows only one job to submit commands at
+a time. However, this option can help pinpoint the job that caused the problem.
+Although enforcing isolation improves the situation, it does not fully resolve
+the issue of precisely pinpointing bad jobs, since isolation might mask the
+problem. In summary, identifying which job caused the issue may not be precise,
+but enforcing isolation might help with the debugging.
+
+Ring Operations
+===============
+
+.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
+   :internal:
+
diff --git a/Documentation/gpu/amdgpu/ring_buffers.svg b/Documentation/gpu/amdgpu/ring_buffers.svg
new file mode 100644
index 000000000000..7a6fcb19e151
--- /dev/null
+++ b/Documentation/gpu/amdgpu/ring_buffers.svg
@@ -0,0 +1,1633 @@
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+       style="fill:none;stroke:#917c6f;stroke-width:1;stroke-linecap:square;stroke-linejoin:miter;stroke-dasharray:none;marker-start:url(#marker154)"
+       d="M 134.065,175.23092 V 125.06784 H 47.638527 V 89.317459"
+       id="path158"
+       sodipodi:nodetypes="cccc" />
+    <path
+       style="fill:none;stroke:#917c6f;stroke-width:1;stroke-linecap:square;stroke-linejoin:miter;stroke-dasharray:none;marker-start:url(#marker154)"
+       d="M 365.79312,175.67492 V 125.06784 H 47.447018 V 81.621506"
+       id="path159"
+       sodipodi:nodetypes="cccc" />
+    <text
+       xml:space="preserve"
+       style="font-style:normal;font-weight:normal;font-size:7.76111px;line-height:1.25;font-family:sans-serif;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;stroke-width:0.400612"
+       x="-68.488571"
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+       id="text159"><tspan
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+         style="font-style:normal;font-variant:normal;font-weight:bold;font-stretch:normal;font-size:7.76111px;font-family:sans-serif;-inkscape-font-specification:'sans-serif Bold';text-align:center;text-anchor:middle;fill:#1c241c;stroke-width:0.400612"
+         id="tspan159">CP is capable of</tspan><tspan
+         sodipodi:role="line"
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+         style="font-style:normal;font-variant:normal;font-weight:bold;font-stretch:normal;font-size:7.76111px;font-family:sans-serif;-inkscape-font-specification:'sans-serif Bold';text-align:center;text-anchor:middle;fill:#1c241c;stroke-width:0.400612"
+         id="tspan160">following the</tspan><tspan
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+         style="font-style:normal;font-variant:normal;font-weight:bold;font-stretch:normal;font-size:7.76111px;font-family:sans-serif;-inkscape-font-specification:'sans-serif Bold';text-align:center;text-anchor:middle;fill:#1c241c;stroke-width:0.400612"
+         id="tspan161">IB address.</tspan></text>
+    <path
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+</svg>
diff --git a/Documentation/gpu/amdgpu/userq.rst b/Documentation/gpu/amdgpu/userq.rst
index ca3ea71f7888..88f54393b220 100644
--- a/Documentation/gpu/amdgpu/userq.rst
+++ b/Documentation/gpu/amdgpu/userq.rst
@@ -1,3 +1,5 @@
+.. _amdgpu-userq:
+
 ==================
  User Mode Queues
 ==================
diff --git a/Documentation/gpu/drivers.rst b/Documentation/gpu/drivers.rst
index 78b80be17f21..2e13e0ad7e88 100644
--- a/Documentation/gpu/drivers.rst
+++ b/Documentation/gpu/drivers.rst
@@ -26,10 +26,3 @@ GPU Driver Documentation
    panthor
    zynqmp
    nova/index
-
-.. only::  subproject and html
-
-   Indices
-   =======
-
-   * :ref:`genindex`
diff --git a/Documentation/gpu/drm-kms-helpers.rst b/Documentation/gpu/drm-kms-helpers.rst
index 5139705089f2..781129f78b06 100644
--- a/Documentation/gpu/drm-kms-helpers.rst
+++ b/Documentation/gpu/drm-kms-helpers.rst
@@ -92,6 +92,18 @@ GEM Atomic Helper Reference
 .. kernel-doc:: drivers/gpu/drm/drm_gem_atomic_helper.c
    :export:
 
+VBLANK Helper Reference
+-----------------------
+
+.. kernel-doc:: drivers/gpu/drm/drm_vblank_helper.c
+   :doc: overview
+
+.. kernel-doc:: include/drm/drm_vblank_helper.h
+   :internal:
+
+.. kernel-doc:: drivers/gpu/drm/drm_vblank_helper.c
+   :export:
+
 Simple KMS Helper Reference
 ===========================
 
diff --git a/Documentation/gpu/drm-kms.rst b/Documentation/gpu/drm-kms.rst
index abfe220764e1..2292e65f044c 100644
--- a/Documentation/gpu/drm-kms.rst
+++ b/Documentation/gpu/drm-kms.rst
@@ -413,6 +413,21 @@ Plane Panic Functions Reference
 .. kernel-doc:: drivers/gpu/drm/drm_panic.c
    :export:
 
+Colorop Abstraction
+===================
+
+.. kernel-doc:: drivers/gpu/drm/drm_colorop.c
+   :doc: overview
+
+Colorop Functions Reference
+---------------------------
+
+.. kernel-doc:: include/drm/drm_colorop.h
+   :internal:
+
+.. kernel-doc:: drivers/gpu/drm/drm_colorop.c
+   :export:
+
 Display Modes Function Reference
 ================================
 
diff --git a/Documentation/gpu/drm-mm.rst b/Documentation/gpu/drm-mm.rst
index d55751cad67c..f22433470c76 100644
--- a/Documentation/gpu/drm-mm.rst
+++ b/Documentation/gpu/drm-mm.rst
@@ -155,7 +155,12 @@ drm_gem_object_init() will create an shmfs file of the
 requested size and store it into the struct :c:type:`struct
 drm_gem_object <drm_gem_object>` filp field. The memory is
 used as either main storage for the object when the graphics hardware
-uses system memory directly or as a backing store otherwise.
+uses system memory directly or as a backing store otherwise. Drivers
+can call drm_gem_huge_mnt_create() to create, mount and use a huge
+shmem mountpoint instead of the default one ('shm_mnt'). For builds
+with CONFIG_TRANSPARENT_HUGEPAGE enabled, further calls to
+drm_gem_object_init() will let shmem allocate huge pages when
+possible.
 
 Drivers are responsible for the actual physical pages allocation by
 calling shmem_read_mapping_page_gfp() for each page.
@@ -290,15 +295,27 @@ The open and close operations must update the GEM object reference
 count. Drivers can use the drm_gem_vm_open() and drm_gem_vm_close() helper
 functions directly as open and close handlers.
 
-The fault operation handler is responsible for mapping individual pages
-to userspace when a page fault occurs. Depending on the memory
-allocation scheme, drivers can allocate pages at fault time, or can
-decide to allocate memory for the GEM object at the time the object is
-created.
+The fault operation handler is responsible for mapping pages to
+userspace when a page fault occurs. Depending on the memory allocation
+scheme, drivers can allocate pages at fault time, or can decide to
+allocate memory for the GEM object at the time the object is created.
 
 Drivers that want to map the GEM object upfront instead of handling page
 faults can implement their own mmap file operation handler.
 
+In order to reduce page table overhead, if the internal shmem mountpoint
+"shm_mnt" is configured to use transparent huge pages (for builds with
+CONFIG_TRANSPARENT_HUGEPAGE enabled) and if the shmem backing store
+managed to allocate a huge page for a faulty address, the fault handler
+will first attempt to insert that huge page into the VMA before falling
+back to individual page insertion. mmap() user address alignment for GEM
+objects is handled by providing a custom get_unmapped_area file
+operation which forwards to the shmem backing store. For most drivers,
+which don't create a huge mountpoint by default or through a module
+parameter, transparent huge pages can be enabled by either setting the
+"transparent_hugepage_shmem" kernel parameter or the
+"/sys/kernel/mm/transparent_hugepage/shmem_enabled" sysfs knob.
+
 For platforms without MMU the GEM core provides a helper method
 drm_gem_dma_get_unmapped_area(). The mmap() routines will call this to get a
 proposed address for the mapping.
diff --git a/Documentation/gpu/index.rst b/Documentation/gpu/index.rst
index 7dcb15850afd..2fafa1f35ef3 100644
--- a/Documentation/gpu/index.rst
+++ b/Documentation/gpu/index.rst
@@ -22,10 +22,3 @@ GPU Driver Developer's Guide
    implementation_guidelines
    todo
    rfc/index
-
-.. only::  subproject and html
-
-   Indices
-   =======
-
-   * :ref:`genindex`
diff --git a/Documentation/gpu/nova/core/todo.rst b/Documentation/gpu/nova/core/todo.rst
index 0972cb905f7a..d1964eb645e2 100644
--- a/Documentation/gpu/nova/core/todo.rst
+++ b/Documentation/gpu/nova/core/todo.rst
@@ -41,27 +41,15 @@ trait [1] from the num crate.
 Having this generalization also helps with implementing a generic macro that
 automatically generates the corresponding mappings between a value and a number.
 
-| Complexity: Beginner
-| Link: https://docs.rs/num/latest/num/trait.FromPrimitive.html
-
-Conversion from byte slices for types implementing FromBytes [TRSM]
--------------------------------------------------------------------
-
-We retrieve several structures from byte streams coming from the BIOS or loaded
-firmware. At the moment converting the bytes slice into the proper type require
-an inelegant `unsafe` operation; this will go away once `FromBytes` implements
-a proper `from_bytes` method.
-
-| Complexity: Beginner
-
-CoherentAllocation improvements [COHA]
---------------------------------------
+FromPrimitive support has been worked on in the past, but hasn't been followed
+since then [1].
 
-`CoherentAllocation` needs a safe way to write into the allocation, and to
-obtain slices within the allocation.
+There also have been considerations of ToPrimitive [2].
 
 | Complexity: Beginner
-| Contact: Abdiel Janulgue
+| Link: https://docs.rs/num/latest/num/trait.FromPrimitive.html
+| Link: https://lore.kernel.org/all/cover.1750689857.git.y.j3ms.n@gmail.com/ [1]
+| Link: https://rust-for-linux.zulipchat.com/#narrow/channel/288089-General/topic/Implement.20.60FromPrimitive.60.20trait.20.2B.20derive.20macro.20for.20nova-core/with/541971854 [2]
 
 Generic register abstraction [REGA]
 -----------------------------------
@@ -153,32 +141,6 @@ A `num` core kernel module is being designed to provide these operations.
 | Complexity: Intermediate
 | Contact: Alexandre Courbot
 
-Delay / Sleep abstractions [DLAY]
----------------------------------
-
-Rust abstractions for the kernel's delay() and sleep() functions.
-
-FUJITA Tomonori plans to work on abstractions for read_poll_timeout_atomic()
-(and friends) [1].
-
-| Complexity: Beginner
-| Link: https://lore.kernel.org/netdev/20250228.080550.354359820929821928.fujita.tomonori@gmail.com/ [1]
-
-IRQ abstractions
-----------------
-
-Rust abstractions for IRQ handling.
-
-There is active ongoing work from Daniel Almeida [1] for the "core" abstractions
-to request IRQs.
-
-Besides optional review and testing work, the required ``pci::Device`` code
-around those core abstractions needs to be worked out.
-
-| Complexity: Intermediate
-| Link: https://lore.kernel.org/lkml/20250122163932.46697-1-daniel.almeida@collabora.com/ [1]
-| Contact: Daniel Almeida
-
 Page abstraction for foreign pages
 ----------------------------------
 
@@ -191,40 +153,16 @@ There is active onging work from Abdiel Janulgue [1] and Lina [2].
 | Link: https://lore.kernel.org/linux-mm/20241119112408.779243-1-abdiel.janulgue@gmail.com/ [1]
 | Link: https://lore.kernel.org/rust-for-linux/20250202-rust-page-v1-0-e3170d7fe55e@asahilina.net/ [2]
 
-Scatterlist / sg_table abstractions
------------------------------------
-
-Rust abstractions for scatterlist / sg_table.
-
-There is preceding work from Abdiel Janulgue, which hasn't made it to the
-mailing list yet.
-
-| Complexity: Intermediate
-| Contact: Abdiel Janulgue
-
 PCI MISC APIs
 -------------
 
-Extend the existing PCI device / driver abstractions by SR-IOV, config space,
-capability, MSI API abstractions.
+Extend the existing PCI device / driver abstractions by SR-IOV, capability, MSI
+API abstractions.
 
-| Complexity: Beginner
-
-XArray bindings [XARR]
-----------------------
+SR-IOV [1] is work in progress.
 
-We need bindings for `xa_alloc`/`xa_alloc_cyclic` in order to generate the
-auxiliary device IDs.
-
-| Complexity: Intermediate
-
-Debugfs abstractions
---------------------
-
-Rust abstraction for debugfs APIs.
-
-| Reference: Export GSP log buffers
-| Complexity: Intermediate
+| Complexity: Beginner
+| Link: https://lore.kernel.org/all/20251119-rust-pci-sriov-v1-0-883a94599a97@redhat.com/ [1]
 
 GPU (general)
 =============
@@ -263,7 +201,10 @@ Some possible options:
     - maple_tree
   - native Rust collections
 
+There is work in progress for using drm_buddy [1].
+
 | Complexity: Advanced
+| Link: https://lore.kernel.org/all/20251219203805.1246586-4-joelagnelf@nvidia.com/ [1]
 
 Instance Memory
 ---------------
diff --git a/Documentation/gpu/rfc/color_pipeline.rst b/Documentation/gpu/rfc/color_pipeline.rst
new file mode 100644
index 000000000000..cd1cc2d0f988
--- /dev/null
+++ b/Documentation/gpu/rfc/color_pipeline.rst
@@ -0,0 +1,378 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+========================
+Linux Color Pipeline API
+========================
+
+What problem are we solving?
+============================
+
+We would like to support pre-, and post-blending complex color
+transformations in display controller hardware in order to allow for
+HW-supported HDR use-cases, as well as to provide support to
+color-managed applications, such as video or image editors.
+
+It is possible to support an HDR output on HW supporting the Colorspace
+and HDR Metadata drm_connector properties, but that requires the
+compositor or application to render and compose the content into one
+final buffer intended for display. Doing so is costly.
+
+Most modern display HW offers various 1D LUTs, 3D LUTs, matrices, and other
+operations to support color transformations. These operations are often
+implemented in fixed-function HW and therefore much more power efficient than
+performing similar operations via shaders or CPU.
+
+We would like to make use of this HW functionality to support complex color
+transformations with no, or minimal CPU or shader load. The switch between HW
+fixed-function blocks and shaders/CPU must be seamless with no visible
+difference when fallback to shaders/CPU is neceesary at any time.
+
+
+How are other OSes solving this problem?
+========================================
+
+The most widely supported use-cases regard HDR content, whether video or
+gaming.
+
+Most OSes will specify the source content format (color gamut, encoding transfer
+function, and other metadata, such as max and average light levels) to a driver.
+Drivers will then program their fixed-function HW accordingly to map from a
+source content buffer's space to a display's space.
+
+When fixed-function HW is not available the compositor will assemble a shader to
+ask the GPU to perform the transformation from the source content format to the
+display's format.
+
+A compositor's mapping function and a driver's mapping function are usually
+entirely separate concepts. On OSes where a HW vendor has no insight into
+closed-source compositor code such a vendor will tune their color management
+code to visually match the compositor's. On other OSes, where both mapping
+functions are open to an implementer they will ensure both mappings match.
+
+This results in mapping algorithm lock-in, meaning that no-one alone can
+experiment with or introduce new mapping algorithms and achieve
+consistent results regardless of which implementation path is taken.
+
+Why is Linux different?
+=======================
+
+Unlike other OSes, where there is one compositor for one or more drivers, on
+Linux we have a many-to-many relationship. Many compositors; many drivers.
+In addition each compositor vendor or community has their own view of how
+color management should be done. This is what makes Linux so beautiful.
+
+This means that a HW vendor can now no longer tune their driver to one
+compositor, as tuning it to one could make it look fairly different from
+another compositor's color mapping.
+
+We need a better solution.
+
+
+Descriptive API
+===============
+
+An API that describes the source and destination colorspaces is a descriptive
+API. It describes the input and output color spaces but does not describe
+how precisely they should be mapped. Such a mapping includes many minute
+design decision that can greatly affect the look of the final result.
+
+It is not feasible to describe such mapping with enough detail to ensure the
+same result from each implementation. In fact, these mappings are a very active
+research area.
+
+
+Prescriptive API
+================
+
+A prescriptive API describes not the source and destination colorspaces. It
+instead prescribes a recipe for how to manipulate pixel values to arrive at the
+desired outcome.
+
+This recipe is generally an ordered list of straight-forward operations,
+with clear mathematical definitions, such as 1D LUTs, 3D LUTs, matrices,
+or other operations that can be described in a precise manner.
+
+
+The Color Pipeline API
+======================
+
+HW color management pipelines can significantly differ between HW
+vendors in terms of availability, ordering, and capabilities of HW
+blocks. This makes a common definition of color management blocks and
+their ordering nigh impossible. Instead we are defining an API that
+allows user space to discover the HW capabilities in a generic manner,
+agnostic of specific drivers and hardware.
+
+
+drm_colorop Object
+==================
+
+To support the definition of color pipelines we define the DRM core
+object type drm_colorop. Individual drm_colorop objects will be chained
+via the NEXT property of a drm_colorop to constitute a color pipeline.
+Each drm_colorop object is unique, i.e., even if multiple color
+pipelines have the same operation they won't share the same drm_colorop
+object to describe that operation.
+
+Note that drivers are not expected to map drm_colorop objects statically
+to specific HW blocks. The mapping of drm_colorop objects is entirely a
+driver-internal detail and can be as dynamic or static as a driver needs
+it to be. See more in the Driver Implementation Guide section below.
+
+Each drm_colorop has three core properties:
+
+TYPE: An enumeration property, defining the type of transformation, such as
+* enumerated curve
+* custom (uniform) 1D LUT
+* 3x3 matrix
+* 3x4 matrix
+* 3D LUT
+* etc.
+
+Depending on the type of transformation other properties will describe
+more details.
+
+BYPASS: A boolean property that can be used to easily put a block into
+bypass mode. The BYPASS property is not mandatory for a colorop, as long
+as the entire pipeline can get bypassed by setting the COLOR_PIPELINE on
+a plane to '0'.
+
+NEXT: The ID of the next drm_colorop in a color pipeline, or 0 if this
+drm_colorop is the last in the chain.
+
+An example of a drm_colorop object might look like one of these::
+
+    /* 1D enumerated curve */
+    Color operation 42
+    ├─ "TYPE": immutable enum {1D enumerated curve, 1D LUT, 3x3 matrix, 3x4 matrix, 3D LUT, etc.} = 1D enumerated curve
+    ├─ "BYPASS": bool {true, false}
+    ├─ "CURVE_1D_TYPE": enum {sRGB EOTF, sRGB inverse EOTF, PQ EOTF, PQ inverse EOTF, …}
+    └─ "NEXT": immutable color operation ID = 43
+
+    /* custom 4k entry 1D LUT */
+    Color operation 52
+    ├─ "TYPE": immutable enum {1D enumerated curve, 1D LUT, 3x3 matrix, 3x4 matrix, 3D LUT, etc.} = 1D LUT
+    ├─ "BYPASS": bool {true, false}
+    ├─ "SIZE": immutable range = 4096
+    ├─ "DATA": blob
+    └─ "NEXT": immutable color operation ID = 0
+
+    /* 17^3 3D LUT */
+    Color operation 72
+    ├─ "TYPE": immutable enum {1D enumerated curve, 1D LUT, 3x3 matrix, 3x4 matrix, 3D LUT, etc.} = 3D LUT
+    ├─ "BYPASS": bool {true, false}
+    ├─ "SIZE": immutable range = 17
+    ├─ "DATA": blob
+    └─ "NEXT": immutable color operation ID = 73
+
+drm_colorop extensibility
+-------------------------
+
+Unlike existing DRM core objects, like &drm_plane, drm_colorop is not
+extensible. This simplifies implementations and keeps all functionality
+for managing &drm_colorop objects in the DRM core.
+
+If there is a need one may introduce a simple &drm_colorop_funcs
+function table in the future, for example to support an IN_FORMATS
+property on a &drm_colorop.
+
+If a driver requires the ability to create a driver-specific colorop
+object they will need to add &drm_colorop func table support with
+support for the usual functions, like destroy, atomic_duplicate_state,
+and atomic_destroy_state.
+
+
+COLOR_PIPELINE Plane Property
+=============================
+
+Color Pipelines are created by a driver and advertised via a new
+COLOR_PIPELINE enum property on each plane. Values of the property
+always include object id 0, which is the default and means all color
+processing is disabled. Additional values will be the object IDs of the
+first drm_colorop in a pipeline. A driver can create and advertise none,
+one, or more possible color pipelines. A DRM client will select a color
+pipeline by setting the COLOR PIPELINE to the respective value.
+
+NOTE: Many DRM clients will set enumeration properties via the string
+value, often hard-coding it. Since this enumeration is generated based
+on the colorop object IDs it is important to perform the Color Pipeline
+Discovery, described below, instead of hard-coding color pipeline
+assignment. Drivers might generate the enum strings dynamically.
+Hard-coded strings might only work for specific drivers on a specific
+pieces of HW. Color Pipeline Discovery can work universally, as long as
+drivers implement the required color operations.
+
+The COLOR_PIPELINE property is only exposed when the
+DRM_CLIENT_CAP_PLANE_COLOR_PIPELINE is set. Drivers shall ignore any
+existing pre-blend color operations when this cap is set, such as
+COLOR_RANGE and COLOR_ENCODING. If drivers want to support COLOR_RANGE
+or COLOR_ENCODING functionality when the color pipeline client cap is
+set, they are expected to expose colorops in the pipeline to allow for
+the appropriate color transformation.
+
+Setting of the COLOR_PIPELINE plane property or drm_colorop properties
+is only allowed for userspace that sets this client cap.
+
+An example of a COLOR_PIPELINE property on a plane might look like this::
+
+    Plane 10
+    ├─ "TYPE": immutable enum {Overlay, Primary, Cursor} = Primary
+    ├─ …
+    └─ "COLOR_PIPELINE": enum {0, 42, 52} = 0
+
+
+Color Pipeline Discovery
+========================
+
+A DRM client wanting color management on a drm_plane will:
+
+1. Get the COLOR_PIPELINE property of the plane
+2. iterate all COLOR_PIPELINE enum values
+3. for each enum value walk the color pipeline (via the NEXT pointers)
+   and see if the available color operations are suitable for the
+   desired color management operations
+
+If userspace encounters an unknown or unsuitable color operation during
+discovery it does not need to reject the entire color pipeline outright,
+as long as the unknown or unsuitable colorop has a "BYPASS" property.
+Drivers will ensure that a bypassed block does not have any effect.
+
+An example of chained properties to define an AMD pre-blending color
+pipeline might look like this::
+
+    Plane 10
+    ├─ "TYPE" (immutable) = Primary
+    └─ "COLOR_PIPELINE": enum {0, 44} = 0
+
+    Color operation 44
+    ├─ "TYPE" (immutable) = 1D enumerated curve
+    ├─ "BYPASS": bool
+    ├─ "CURVE_1D_TYPE": enum {sRGB EOTF, PQ EOTF} = sRGB EOTF
+    └─ "NEXT" (immutable) = 45
+
+    Color operation 45
+    ├─ "TYPE" (immutable) = 3x4 Matrix
+    ├─ "BYPASS": bool
+    ├─ "DATA": blob
+    └─ "NEXT" (immutable) = 46
+
+    Color operation 46
+    ├─ "TYPE" (immutable) = 1D enumerated curve
+    ├─ "BYPASS": bool
+    ├─ "CURVE_1D_TYPE": enum {sRGB Inverse EOTF, PQ Inverse EOTF} = sRGB EOTF
+    └─ "NEXT" (immutable) = 47
+
+    Color operation 47
+    ├─ "TYPE" (immutable) = 1D LUT
+    ├─ "SIZE": immutable range = 4096
+    ├─ "DATA": blob
+    └─ "NEXT" (immutable) = 48
+
+    Color operation 48
+    ├─ "TYPE" (immutable) = 3D LUT
+    ├─ "DATA": blob
+    └─ "NEXT" (immutable) = 49
+
+    Color operation 49
+    ├─ "TYPE" (immutable) = 1D enumerated curve
+    ├─ "BYPASS": bool
+    ├─ "CURVE_1D_TYPE": enum {sRGB EOTF, PQ EOTF} = sRGB EOTF
+    └─ "NEXT" (immutable) = 0
+
+
+Color Pipeline Programming
+==========================
+
+Once a DRM client has found a suitable pipeline it will:
+
+1. Set the COLOR_PIPELINE enum value to the one pointing at the first
+   drm_colorop object of the desired pipeline
+2. Set the properties for all drm_colorop objects in the pipeline to the
+   desired values, setting BYPASS to true for unused drm_colorop blocks,
+   and false for enabled drm_colorop blocks
+3. Perform (TEST_ONLY or not) atomic commit with all the other KMS
+   states it wishes to change
+
+To configure the pipeline for an HDR10 PQ plane and blending in linear
+space, a compositor might perform an atomic commit with the following
+property values::
+
+    Plane 10
+    └─ "COLOR_PIPELINE" = 42
+
+    Color operation 42
+    └─ "BYPASS" = true
+
+    Color operation 44
+    └─ "BYPASS" = true
+
+    Color operation 45
+    └─ "BYPASS" = true
+
+    Color operation 46
+    └─ "BYPASS" = true
+
+    Color operation 47
+    ├─ "DATA" = Gamut mapping + tone mapping + night mode
+    └─ "BYPASS" = false
+
+    Color operation 48
+    ├─ "CURVE_1D_TYPE" = PQ EOTF
+    └─ "BYPASS" = false
+
+
+Driver Implementer's Guide
+==========================
+
+What does this all mean for driver implementations? As noted above the
+colorops can map to HW directly but don't need to do so. Here are some
+suggestions on how to think about creating your color pipelines:
+
+- Try to expose pipelines that use already defined colorops, even if
+  your hardware pipeline is split differently. This allows existing
+  userspace to immediately take advantage of the hardware.
+
+- Additionally, try to expose your actual hardware blocks as colorops.
+  Define new colorop types where you believe it can offer significant
+  benefits if userspace learns to program them.
+
+- Avoid defining new colorops for compound operations with very narrow
+  scope. If you have a hardware block for a special operation that
+  cannot be split further, you can expose that as a new colorop type.
+  However, try to not define colorops for "use cases", especially if
+  they require you to combine multiple hardware blocks.
+
+- Design new colorops as prescriptive, not descriptive; by the
+  mathematical formula, not by the assumed input and output.
+
+A defined colorop type must be deterministic. The exact behavior of the
+colorop must be documented entirely, whether via a mathematical formula
+or some other description. Its operation can depend only on its
+properties and input and nothing else, allowed error tolerance
+notwithstanding.
+
+
+Driver Forward/Backward Compatibility
+=====================================
+
+As this is uAPI drivers can't regress color pipelines that have been
+introduced for a given HW generation. New HW generations are free to
+abandon color pipelines advertised for previous generations.
+Nevertheless, it can be beneficial to carry support for existing color
+pipelines forward as those will likely already have support in DRM
+clients.
+
+Introducing new colorops to a pipeline is fine, as long as they can be
+bypassed or are purely informational. DRM clients implementing support
+for the pipeline can always skip unknown properties as long as they can
+be confident that doing so will not cause unexpected results.
+
+If a new colorop doesn't fall into one of the above categories
+(bypassable or informational) the modified pipeline would be unusable
+for user space. In this case a new pipeline should be defined.
+
+
+References
+==========
+
+1. https://lore.kernel.org/dri-devel/QMers3awXvNCQlyhWdTtsPwkp5ie9bze_hD5nAccFW7a_RXlWjYB7MoUW_8CKLT2bSQwIXVi5H6VULYIxCdgvryZoAoJnC5lZgyK1QWn488=@emersion.fr/
\ No newline at end of file
diff --git a/Documentation/gpu/rfc/index.rst b/Documentation/gpu/rfc/index.rst
index 396e535377fb..ef19b0ba2a3e 100644
--- a/Documentation/gpu/rfc/index.rst
+++ b/Documentation/gpu/rfc/index.rst
@@ -35,3 +35,6 @@ host such documentation:
 .. toctree::
 
     i915_vm_bind.rst
+
+.. toctree::
+    color_pipeline.rst
\ No newline at end of file
diff --git a/Documentation/gpu/todo.rst b/Documentation/gpu/todo.rst
index b5f58b4274b1..520da44a04a6 100644
--- a/Documentation/gpu/todo.rst
+++ b/Documentation/gpu/todo.rst
@@ -506,6 +506,22 @@ Contact: Maxime Ripard <mripard@kernel.org>,
 
 Level: Intermediate
 
+Convert users of of_drm_find_bridge() to of_drm_find_and_get_bridge()
+---------------------------------------------------------------------
+
+Taking a struct drm_bridge pointer requires getting a reference and putting
+it after disposing of the pointer. Most functions returning a struct
+drm_bridge pointer already call drm_bridge_get() to increment the refcount
+and their users have been updated to call drm_bridge_put() when
+appropriate. of_drm_find_bridge() does not get a reference and it has been
+deprecated in favor of of_drm_find_and_get_bridge() which does, but some
+users still need to be converted.
+
+Contact: Maxime Ripard <mripard@kernel.org>,
+         Luca Ceresoli <luca.ceresoli@bootlin.com>
+
+Level: Intermediate
+
 Core refactorings
 =================
 
@@ -623,6 +639,43 @@ Contact: Thomas Zimmermann <tzimmermann@suse.de>, Simona Vetter
 
 Level: Advanced
 
+Implement a new DUMB_CREATE2 ioctl
+----------------------------------
+
+The current DUMB_CREATE ioctl is not well defined. Instead of a pixel and
+framebuffer format, it only accepts a color mode of vague semantics. Assuming
+a linear framebuffer, the color mode gives an idea of the supported pixel
+format. But userspace effectively has to guess the correct values. It really
+only works reliably with framebuffers in XRGB8888. Userspace has begun to
+workaround these limitations by computing arbitrary format's buffer sizes and
+calculating their sizes in terms of XRGB8888 pixels.
+
+One possible solution is a new ioctl DUMB_CREATE2. It should accept a DRM
+format and a format modifier to resolve the color mode's ambiguity. As
+framebuffers can be multi-planar, the new ioctl has to return the buffer size,
+pitch and GEM handle for each individual color plane.
+
+In the first step, the new ioctl can be limited to the current features of
+the existing DUMB_CREATE. Individual drivers can then be extended to support
+multi-planar formats. Rockchip might require this and would be a good candidate.
+
+It might also be helpful to userspace to query information about the size of
+a potential buffer, if allocated. Userspace would supply geometry and format;
+the kernel would return minimal allocation sizes and scanline pitch. There is
+interest to allocate that memory from another device and provide it to the
+DRM driver (say via dma-buf).
+
+Another requested feature is the ability to allocate a buffer by size, without
+format. Accelators use this for their buffer allocation and it could likely be
+generalized.
+
+In addition to the kernel implementation, there must be user-space support
+for the new ioctl. There's code in Mesa that might be able to use the new
+call.
+
+Contact: Thomas Zimmermann <tzimmermann@suse.de>
+
+Level: Advanced
 
 Better Testing
 ==============
@@ -841,6 +894,51 @@ Contact: Christian König
 
 Level: Starter
 
+DRM GPU Scheduler
+=================
+
+Provide a universal successor for drm_sched_resubmit_jobs()
+-----------------------------------------------------------
+
+drm_sched_resubmit_jobs() is deprecated. Main reason being that it leads to
+reinitializing dma_fences. See that function's docu for details. The better
+approach for valid resubmissions by amdgpu and Xe is (apparently) to figure out
+which job (and, through association: which entity) caused the hang. Then, the
+job's buffer data, together with all other jobs' buffer data currently in the
+same hardware ring, must be invalidated. This can for example be done by
+overwriting it. amdgpu currently determines which jobs are in the ring and need
+to be overwritten by keeping copies of the job. Xe obtains that information by
+directly accessing drm_sched's pending_list.
+
+Tasks:
+
+1. implement scheduler functionality through which the driver can obtain the
+   information which *broken* jobs are currently in the hardware ring.
+2. Such infrastructure would then typically be used in
+   drm_sched_backend_ops.timedout_job(). Document that.
+3. Port a driver as first user.
+4. Document the new alternative in the docu of deprecated
+   drm_sched_resubmit_jobs().
+
+Contact: Christian König <christian.koenig@amd.com>
+         Philipp Stanner <phasta@kernel.org>
+
+Level: Advanced
+
+Add locking for runqueues
+-------------------------
+
+There is an old FIXME by Sima in include/drm/gpu_scheduler.h. It details that
+struct drm_sched_rq is read at many places without any locks, not even with a
+READ_ONCE. At XDC 2025 no one could really tell why that is the case, whether
+locks are needed and whether they could be added. (But for real, that should
+probably be locked!). Check whether it's possible to add locks everywhere, and
+do so if yes.
+
+Contact: Philipp Stanner <phasta@kernel.org>
+
+Level: Intermediate
+
 Outside DRM
 ===========
 
diff --git a/Documentation/gpu/vkms.rst b/Documentation/gpu/vkms.rst
index 8a8b1002931f..1e79e62a6bc4 100644
--- a/Documentation/gpu/vkms.rst
+++ b/Documentation/gpu/vkms.rst
@@ -51,6 +51,97 @@ To disable the driver, use ::
 
   sudo modprobe -r vkms
 
+Configuring With Configfs
+=========================
+
+It is possible to create and configure multiple VKMS instances via configfs.
+
+Start by mounting configfs and loading VKMS::
+
+  sudo mount -t configfs none /config
+  sudo modprobe vkms
+
+Once VKMS is loaded, ``/config/vkms`` is created automatically. Each directory
+under ``/config/vkms`` represents a VKMS instance, create a new one::
+
+  sudo mkdir /config/vkms/my-vkms
+
+By default, the instance is disabled::
+
+  cat /config/vkms/my-vkms/enabled
+  0
+
+And directories are created for each configurable item of the display pipeline::
+
+  tree /config/vkms/my-vkms
+  ├── connectors
+  ├── crtcs
+  ├── enabled
+  ├── encoders
+  └── planes
+
+To add items to the display pipeline, create one or more directories under the
+available paths.
+
+Start by creating one or more planes::
+
+  sudo mkdir /config/vkms/my-vkms/planes/plane0
+
+Planes have 1 configurable attribute:
+
+- type: Plane type: 0 overlay, 1 primary, 2 cursor (same values as those
+  exposed by the "type" property of a plane)
+
+Continue by creating one or more CRTCs::
+
+  sudo mkdir /config/vkms/my-vkms/crtcs/crtc0
+
+CRTCs have 1 configurable attribute:
+
+- writeback: Enable or disable writeback connector support by writing 1 or 0
+
+Next, create one or more encoders::
+
+  sudo mkdir /config/vkms/my-vkms/encoders/encoder0
+
+Last but not least, create one or more connectors::
+
+  sudo mkdir /config/vkms/my-vkms/connectors/connector0
+
+Connectors have 1 configurable attribute:
+
+- status: Connection status: 1 connected, 2 disconnected, 3 unknown (same values
+  as those exposed by the "status" property of a connector)
+
+To finish the configuration, link the different pipeline items::
+
+  sudo ln -s /config/vkms/my-vkms/crtcs/crtc0 /config/vkms/my-vkms/planes/plane0/possible_crtcs
+  sudo ln -s /config/vkms/my-vkms/crtcs/crtc0 /config/vkms/my-vkms/encoders/encoder0/possible_crtcs
+  sudo ln -s /config/vkms/my-vkms/encoders/encoder0 /config/vkms/my-vkms/connectors/connector0/possible_encoders
+
+Since at least one primary plane is required, make sure to set the right type::
+
+  echo "1" | sudo tee /config/vkms/my-vkms/planes/plane0/type
+
+Once you are done configuring the VKMS instance, enable it::
+
+  echo "1" | sudo tee /config/vkms/my-vkms/enabled
+
+Finally, you can remove the VKMS instance disabling it::
+
+  echo "0" | sudo tee /config/vkms/my-vkms/enabled
+
+And removing the top level directory and its subdirectories::
+
+  sudo rm /config/vkms/my-vkms/planes/*/possible_crtcs/*
+  sudo rm /config/vkms/my-vkms/encoders/*/possible_crtcs/*
+  sudo rm /config/vkms/my-vkms/connectors/*/possible_encoders/*
+  sudo rmdir /config/vkms/my-vkms/planes/*
+  sudo rmdir /config/vkms/my-vkms/crtcs/*
+  sudo rmdir /config/vkms/my-vkms/encoders/*
+  sudo rmdir /config/vkms/my-vkms/connectors/*
+  sudo rmdir /config/vkms/my-vkms
+
 Testing With IGT
 ================
 
@@ -68,26 +159,23 @@ To return to graphical mode, do::
 
   sudo systemctl isolate graphical.target
 
-Once you are in text only mode, you can run tests using the --device switch
-or IGT_DEVICE variable to specify the device filter for the driver we want
-to test. IGT_DEVICE can also be used with the run-test.sh script to run the
+Once you are in text only mode, you can run tests using the IGT_FORCE_DRIVER
+variable to specify the device filter for the driver we want to test.
+IGT_FORCE_DRIVER can also be used with the run-tests.sh script to run the
 tests for a specific driver::
 
-  sudo ./build/tests/<name of test> --device "sys:/sys/devices/platform/vkms"
-  sudo IGT_DEVICE="sys:/sys/devices/platform/vkms" ./build/tests/<name of test>
-  sudo IGT_DEVICE="sys:/sys/devices/platform/vkms" ./scripts/run-tests.sh -t <name of test>
+  sudo IGT_FORCE_DRIVER="vkms" ./build/tests/<name of test>
+  sudo IGT_FORCE_DRIVER="vkms" ./scripts/run-tests.sh -t <name of test>
 
 For example, to test the functionality of the writeback library,
 we can run the kms_writeback test::
 
-  sudo ./build/tests/kms_writeback --device "sys:/sys/devices/platform/vkms"
-  sudo IGT_DEVICE="sys:/sys/devices/platform/vkms" ./build/tests/kms_writeback
-  sudo IGT_DEVICE="sys:/sys/devices/platform/vkms" ./scripts/run-tests.sh -t kms_writeback
+  sudo IGT_FORCE_DRIVER="vkms" ./build/tests/kms_writeback
+  sudo IGT_FORCE_DRIVER="vkms" ./scripts/run-tests.sh -t kms_writeback
 
 You can also run subtests if you do not want to run the entire test::
 
-  sudo ./build/tests/kms_flip --run-subtest basic-plain-flip --device "sys:/sys/devices/platform/vkms"
-  sudo IGT_DEVICE="sys:/sys/devices/platform/vkms" ./build/tests/kms_flip --run-subtest basic-plain-flip
+  sudo IGT_FORCE_DRIVER="vkms" ./build/tests/kms_flip --run-subtest basic-plain-flip
 
 Testing With KUnit
 ==================
@@ -147,21 +235,14 @@ Runtime Configuration
 ---------------------
 
 We want to be able to reconfigure vkms instance without having to reload the
-module. Use/Test-cases:
+module through configfs. Use/Test-cases:
 
 - Hotplug/hotremove connectors on the fly (to be able to test DP MST handling
   of compositors).
 
-- Configure planes/crtcs/connectors (we'd need some code to have more than 1 of
-  them first).
-
 - Change output configuration: Plug/unplug screens, change EDID, allow changing
   the refresh rate.
 
-The currently proposed solution is to expose vkms configuration through
-configfs. All existing module options should be supported through configfs
-too.
-
 Writeback support
 -----------------
 
diff --git a/Documentation/gpu/xe/index.rst b/Documentation/gpu/xe/index.rst
index 88b22fad880e..bc432c95d1a3 100644
--- a/Documentation/gpu/xe/index.rst
+++ b/Documentation/gpu/xe/index.rst
@@ -14,6 +14,7 @@ DG2, etc is provided to prototype the driver.
    xe_mm
    xe_map
    xe_migrate
+   xe_exec_queue
    xe_cs
    xe_pm
    xe_gt_freq
diff --git a/Documentation/gpu/xe/xe_exec_queue.rst b/Documentation/gpu/xe/xe_exec_queue.rst
new file mode 100644
index 000000000000..8707806211c9
--- /dev/null
+++ b/Documentation/gpu/xe/xe_exec_queue.rst
@@ -0,0 +1,34 @@
+.. SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+
+===============
+Execution Queue
+===============
+
+.. kernel-doc:: drivers/gpu/drm/xe/xe_exec_queue.c
+   :doc: Execution Queue
+
+Multi Queue Group
+=================
+
+.. kernel-doc:: drivers/gpu/drm/xe/xe_exec_queue.c
+   :doc: Multi Queue Group
+
+.. _multi-queue-group-guc-interface:
+
+Multi Queue Group GuC interface
+===============================
+
+.. kernel-doc:: drivers/gpu/drm/xe/xe_guc_submit.c
+   :doc: Multi Queue Group GuC interface
+
+Internal API
+============
+
+.. kernel-doc:: drivers/gpu/drm/xe/xe_exec_queue_types.h
+   :internal:
+
+.. kernel-doc:: drivers/gpu/drm/xe/xe_exec_queue.h
+   :internal:
+
+.. kernel-doc:: drivers/gpu/drm/xe/xe_exec_queue.c
+   :internal:
diff --git a/Documentation/gpu/xe/xe_gt_freq.rst b/Documentation/gpu/xe/xe_gt_freq.rst
index c0811200e327..182d6aabeee1 100644
--- a/Documentation/gpu/xe/xe_gt_freq.rst
+++ b/Documentation/gpu/xe/xe_gt_freq.rst
@@ -7,6 +7,9 @@ Xe GT Frequency Management
 .. kernel-doc:: drivers/gpu/drm/xe/xe_gt_freq.c
    :doc: Xe GT Frequency Management
 
+.. kernel-doc:: drivers/gpu/drm/xe/xe_gt_throttle.c
+   :doc: Xe GT Throttle
+
 Internal API
 ============