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

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

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

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

  gem:
   - Simplify gpuvm locking

  ttm:
   - add interface to populate buffers

  sched:
   - Fix race condition in trace code

  atomic:
   - Reallow no-op async page flips

  display:
   - dp: Fix command length

  video:
   - Improve pixel-format handling for struct screen_info

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

  gpuvm:
   - Support madvice in Xe driver

  gpusvm:
   - fix hmm_pfn_to_map_order usage in gpusvm

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

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

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

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

  radeon:
   - use dev_warn_once in CS parsers

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

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

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

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

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

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

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

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

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

  ast:
   - Clean up detection of DRAM config

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

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

  renesas:
   - convert to RUNTIME_PM_OPS

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

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

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

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

  pixpaper:
   - Add support for Mayqueen Pixpaper plus DT bindings

  v3d:
   - Support querying nubmer of GPU resets for KHR_robustness

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

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

  tidss:
   - Convert to kernel's FIELD_ macros

  vesadrm:
   - Support 8-bit palette mode

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

  v3d:
   - Improve job management and locking

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

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

8 files changed, 197 insertions, 39 deletions

diff --git a/include/linux/fbcon.h b/include/linux/fbcon.h
index 2382dec6d6ab..81f0e698acbf 100644
--- a/include/linux/fbcon.h
+++ b/include/linux/fbcon.h
@@ -1,6 +1,13 @@
 #ifndef _LINUX_FBCON_H
 #define _LINUX_FBCON_H
 
+#include <linux/compiler_types.h>
+
+struct fb_blit_caps;
+struct fb_info;
+struct fb_var_screeninfo;
+struct fb_videomode;
+
 #ifdef CONFIG_FRAMEBUFFER_CONSOLE
 void __init fb_console_init(void);
 void __exit fb_console_exit(void);
diff --git a/include/linux/habanalabs/cpucp_if.h b/include/linux/habanalabs/cpucp_if.h
index 7ed3fdd55dda..45f181bcf890 100644
--- a/include/linux/habanalabs/cpucp_if.h
+++ b/include/linux/habanalabs/cpucp_if.h
@@ -1425,9 +1425,13 @@ struct cpucp_monitor_dump {
  * from "pkt_subidx" field in struct cpucp_packet.
  *
  * HL_PASSTHROUGHT_VERSIONS	- Fetch all firmware versions.
+ * HL_GET_ERR_COUNTERS_CMD	- Command to get error counters
+ * HL_GET_P_STATE		- get performance state
  */
 enum hl_passthrough_type {
 	HL_PASSTHROUGH_VERSIONS,
+	HL_GET_ERR_COUNTERS_CMD,
+	HL_GET_P_STATE,
 };
 
 #endif /* CPUCP_IF_H */
diff --git a/include/linux/hid.h b/include/linux/hid.h
index 2cc4f1e4ea96..c32425b5d011 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -364,6 +364,7 @@ struct hid_item {
  * | @HID_QUIRK_HAVE_SPECIAL_DRIVER:
  * | @HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE:
  * | @HID_QUIRK_IGNORE_SPECIAL_DRIVER
+ * | @HID_QUIRK_POWER_ON_AFTER_BACKLIGHT
  * | @HID_QUIRK_FULLSPEED_INTERVAL:
  * | @HID_QUIRK_NO_INIT_REPORTS:
  * | @HID_QUIRK_NO_IGNORE:
@@ -391,6 +392,7 @@ struct hid_item {
 #define HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE	BIT(20)
 #define HID_QUIRK_NOINVERT			BIT(21)
 #define HID_QUIRK_IGNORE_SPECIAL_DRIVER		BIT(22)
+#define HID_QUIRK_POWER_ON_AFTER_BACKLIGHT	BIT(23)
 #define HID_QUIRK_FULLSPEED_INTERVAL		BIT(28)
 #define HID_QUIRK_NO_INIT_REPORTS		BIT(29)
 #define HID_QUIRK_NO_IGNORE			BIT(30)
diff --git a/include/linux/iopoll.h b/include/linux/iopoll.h
index 91324c331a4b..bdd2e0652bc3 100644
--- a/include/linux/iopoll.h
+++ b/include/linux/iopoll.h
@@ -14,62 +14,64 @@
 #include <linux/io.h>
 
 /**
- * read_poll_timeout - Periodically poll an address until a condition is
- *			met or a timeout occurs
- * @op: accessor function (takes @args as its arguments)
- * @val: Variable to read the value into
- * @cond: Break condition (usually involving @val)
- * @sleep_us: Maximum time to sleep between reads in us (0 tight-loops). Please
- *            read usleep_range() function description for details and
+ * poll_timeout_us - Periodically poll and perform an operation until
+ *                   a condition is met or a timeout occurs
+ *
+ * @op: Operation
+ * @cond: Break condition
+ * @sleep_us: Maximum time to sleep between operations in us (0 tight-loops).
+ *            Please read usleep_range() function description for details and
  *            limitations.
  * @timeout_us: Timeout in us, 0 means never timeout
- * @sleep_before_read: if it is true, sleep @sleep_us before read.
- * @args: arguments for @op poll
+ * @sleep_before_op: if it is true, sleep @sleep_us before operation.
  *
  * When available, you'll probably want to use one of the specialized
  * macros defined below rather than this macro directly.
  *
- * Returns: 0 on success and -ETIMEDOUT upon a timeout. In either
- * case, the last read value at @args is stored in @val. Must not
+ * Returns: 0 on success and -ETIMEDOUT upon a timeout. Must not
  * be called from atomic context if sleep_us or timeout_us are used.
  */
-#define read_poll_timeout(op, val, cond, sleep_us, timeout_us, \
-				sleep_before_read, args...) \
+#define poll_timeout_us(op, cond, sleep_us, timeout_us, sleep_before_op) \
 ({ \
 	u64 __timeout_us = (timeout_us); \
 	unsigned long __sleep_us = (sleep_us); \
 	ktime_t __timeout = ktime_add_us(ktime_get(), __timeout_us); \
+	int ___ret; \
 	might_sleep_if((__sleep_us) != 0); \
-	if (sleep_before_read && __sleep_us) \
+	if ((sleep_before_op) && __sleep_us) \
 		usleep_range((__sleep_us >> 2) + 1, __sleep_us); \
 	for (;;) { \
-		(val) = op(args); \
-		if (cond) \
+		bool __expired = __timeout_us && \
+			ktime_compare(ktime_get(), __timeout) > 0; \
+		/* guarantee 'op' and 'cond' are evaluated after timeout expired */ \
+		barrier(); \
+		op; \
+		if (cond) { \
+			___ret = 0; \
 			break; \
-		if (__timeout_us && \
-		    ktime_compare(ktime_get(), __timeout) > 0) { \
-			(val) = op(args); \
+		} \
+		if (__expired) { \
+			___ret = -ETIMEDOUT; \
 			break; \
 		} \
 		if (__sleep_us) \
 			usleep_range((__sleep_us >> 2) + 1, __sleep_us); \
 		cpu_relax(); \
 	} \
-	(cond) ? 0 : -ETIMEDOUT; \
+	___ret; \
 })
 
 /**
- * read_poll_timeout_atomic - Periodically poll an address until a condition is
- * 				met or a timeout occurs
- * @op: accessor function (takes @args as its arguments)
- * @val: Variable to read the value into
- * @cond: Break condition (usually involving @val)
- * @delay_us: Time to udelay between reads in us (0 tight-loops). Please
- *            read udelay() function description for details and
+ * poll_timeout_us_atomic - Periodically poll and perform an operation until
+ *                          a condition is met or a timeout occurs
+ *
+ * @op: Operation
+ * @cond: Break condition
+ * @delay_us: Time to udelay between operations in us (0 tight-loops).
+ *            Please read udelay() function description for details and
  *            limitations.
  * @timeout_us: Timeout in us, 0 means never timeout
- * @delay_before_read: if it is true, delay @delay_us before read.
- * @args: arguments for @op poll
+ * @delay_before_op: if it is true, delay @delay_us before operation.
  *
  * This macro does not rely on timekeeping.  Hence it is safe to call even when
  * timekeeping is suspended, at the expense of an underestimation of wall clock
@@ -78,27 +80,32 @@
  * When available, you'll probably want to use one of the specialized
  * macros defined below rather than this macro directly.
  *
- * Returns: 0 on success and -ETIMEDOUT upon a timeout. In either
- * case, the last read value at @args is stored in @val.
+ * Returns: 0 on success and -ETIMEDOUT upon a timeout.
  */
-#define read_poll_timeout_atomic(op, val, cond, delay_us, timeout_us, \
-					delay_before_read, args...) \
+#define poll_timeout_us_atomic(op, cond, delay_us, timeout_us, \
+			       delay_before_op) \
 ({ \
 	u64 __timeout_us = (timeout_us); \
 	s64 __left_ns = __timeout_us * NSEC_PER_USEC; \
 	unsigned long __delay_us = (delay_us); \
 	u64 __delay_ns = __delay_us * NSEC_PER_USEC; \
-	if (delay_before_read && __delay_us) { \
+	int ___ret; \
+	if ((delay_before_op) && __delay_us) { \
 		udelay(__delay_us); \
 		if (__timeout_us) \
 			__left_ns -= __delay_ns; \
 	} \
 	for (;;) { \
-		(val) = op(args); \
-		if (cond) \
+		bool __expired = __timeout_us && __left_ns < 0; \
+		/* guarantee 'op' and 'cond' are evaluated after timeout expired */ \
+		barrier(); \
+		op; \
+		if (cond) { \
+			___ret = 0; \
 			break; \
-		if (__timeout_us && __left_ns < 0) { \
-			(val) = op(args); \
+		} \
+		if (__expired) { \
+			___ret = -ETIMEDOUT; \
 			break; \
 		} \
 		if (__delay_us) { \
@@ -110,10 +117,61 @@
 		if (__timeout_us) \
 			__left_ns--; \
 	} \
-	(cond) ? 0 : -ETIMEDOUT; \
+	___ret; \
 })
 
 /**
+ * read_poll_timeout - Periodically poll an address until a condition is
+ *                     met or a timeout occurs
+ * @op: accessor function (takes @args as its arguments)
+ * @val: Variable to read the value into
+ * @cond: Break condition (usually involving @val)
+ * @sleep_us: Maximum time to sleep between reads in us (0 tight-loops). Please
+ *            read usleep_range() function description for details and
+ *            limitations.
+ * @timeout_us: Timeout in us, 0 means never timeout
+ * @sleep_before_read: if it is true, sleep @sleep_us before read.
+ * @args: arguments for @op poll
+ *
+ * When available, you'll probably want to use one of the specialized
+ * macros defined below rather than this macro directly.
+ *
+ * Returns: 0 on success and -ETIMEDOUT upon a timeout. In either
+ * case, the last read value at @args is stored in @val. Must not
+ * be called from atomic context if sleep_us or timeout_us are used.
+ */
+#define read_poll_timeout(op, val, cond, sleep_us, timeout_us, \
+			  sleep_before_read, args...) \
+	poll_timeout_us((val) = op(args), cond, sleep_us, timeout_us, sleep_before_read)
+
+/**
+ * read_poll_timeout_atomic - Periodically poll an address until a condition is
+ *                            met or a timeout occurs
+ * @op: accessor function (takes @args as its arguments)
+ * @val: Variable to read the value into
+ * @cond: Break condition (usually involving @val)
+ * @delay_us: Time to udelay between reads in us (0 tight-loops). Please
+ *            read udelay() function description for details and
+ *            limitations.
+ * @timeout_us: Timeout in us, 0 means never timeout
+ * @delay_before_read: if it is true, delay @delay_us before read.
+ * @args: arguments for @op poll
+ *
+ * This macro does not rely on timekeeping.  Hence it is safe to call even when
+ * timekeeping is suspended, at the expense of an underestimation of wall clock
+ * time, which is rather minimal with a non-zero delay_us.
+ *
+ * When available, you'll probably want to use one of the specialized
+ * macros defined below rather than this macro directly.
+ *
+ * Returns: 0 on success and -ETIMEDOUT upon a timeout. In either
+ * case, the last read value at @args is stored in @val.
+ */
+#define read_poll_timeout_atomic(op, val, cond, sleep_us, timeout_us, \
+				 sleep_before_read, args...) \
+	poll_timeout_us_atomic((val) = op(args), cond, sleep_us, timeout_us, sleep_before_read)
+
+/**
  * readx_poll_timeout - Periodically poll an address until a condition is met or a timeout occurs
  * @op: accessor function (takes @addr as its only argument)
  * @addr: Address to poll
diff --git a/include/linux/list.h b/include/linux/list.h
index e7e28afd28f8..7f7657e41620 100644
--- a/include/linux/list.h
+++ b/include/linux/list.h
@@ -637,6 +637,20 @@ static inline void list_splice_tail_init(struct list_head *list,
 })
 
 /**
+ * list_last_entry_or_null - get the last element from a list
+ * @ptr:	the list head to take the element from.
+ * @type:	the type of the struct this is embedded in.
+ * @member:	the name of the list_head within the struct.
+ *
+ * Note that if the list is empty, it returns NULL.
+ */
+#define list_last_entry_or_null(ptr, type, member) ({ \
+	struct list_head *head__ = (ptr); \
+	struct list_head *pos__ = READ_ONCE(head__->prev); \
+	pos__ != head__ ? list_entry(pos__, type, member) : NULL; \
+})
+
+/**
  * list_next_entry - get the next element in list
  * @pos:	the type * to cursor
  * @member:	the name of the list_head within the struct.
diff --git a/include/linux/mei_cl_bus.h b/include/linux/mei_cl_bus.h
index 725fd7727422..a82755e1fc40 100644
--- a/include/linux/mei_cl_bus.h
+++ b/include/linux/mei_cl_bus.h
@@ -113,6 +113,7 @@ int mei_cldev_register_notif_cb(struct mei_cl_device *cldev,
 				mei_cldev_cb_t notif_cb);
 
 u8 mei_cldev_ver(const struct mei_cl_device *cldev);
+size_t mei_cldev_mtu(const struct mei_cl_device *cldev);
 
 void *mei_cldev_get_drvdata(const struct mei_cl_device *cldev);
 void mei_cldev_set_drvdata(struct mei_cl_device *cldev, void *data);
diff --git a/include/linux/overflow.h b/include/linux/overflow.h
index 154ed0dbb43f..725f95f7e416 100644
--- a/include/linux/overflow.h
+++ b/include/linux/overflow.h
@@ -239,6 +239,76 @@ static inline bool __must_check __must_check_overflow(bool overflow)
 			      __overflows_type(n, T))
 
 /**
+ * range_overflows() - Check if a range is out of bounds
+ * @start: Start of the range.
+ * @size:  Size of the range.
+ * @max:   Exclusive upper boundary.
+ *
+ * A strict check to determine if the range [@start, @start + @size) is
+ * invalid with respect to the allowable range [0, @max). Any range
+ * starting at or beyond @max is considered an overflow, even if @size is 0.
+ *
+ * Returns: true if the range is out of bounds.
+ */
+#define range_overflows(start, size, max) ({ \
+	typeof(start) start__ = (start); \
+	typeof(size) size__ = (size); \
+	typeof(max) max__ = (max); \
+	(void)(&start__ == &size__); \
+	(void)(&start__ == &max__); \
+	start__ >= max__ || size__ > max__ - start__; \
+})
+
+/**
+ * range_overflows_t() - Check if a range is out of bounds
+ * @type:  Data type to use.
+ * @start: Start of the range.
+ * @size:  Size of the range.
+ * @max:   Exclusive upper boundary.
+ *
+ * Same as range_overflows() but forcing the parameters to @type.
+ *
+ * Returns: true if the range is out of bounds.
+ */
+#define range_overflows_t(type, start, size, max) \
+	range_overflows((type)(start), (type)(size), (type)(max))
+
+/**
+ * range_end_overflows() - Check if a range's endpoint is out of bounds
+ * @start: Start of the range.
+ * @size:  Size of the range.
+ * @max:   Exclusive upper boundary.
+ *
+ * Checks only if the endpoint of a range (@start + @size) exceeds @max.
+ * Unlike range_overflows(), a zero-sized range at the boundary (@start == @max)
+ * is not considered an overflow. Useful for iterator-style checks.
+ *
+ * Returns: true if the endpoint exceeds the boundary.
+ */
+#define range_end_overflows(start, size, max) ({ \
+	typeof(start) start__ = (start); \
+	typeof(size) size__ = (size); \
+	typeof(max) max__ = (max); \
+	(void)(&start__ == &size__); \
+	(void)(&start__ == &max__); \
+	start__ > max__ || size__ > max__ - start__; \
+})
+
+/**
+ * range_end_overflows_t() - Check if a range's endpoint is out of bounds
+ * @type:  Data type to use.
+ * @start: Start of the range.
+ * @size:  Size of the range.
+ * @max:   Exclusive upper boundary.
+ *
+ * Same as range_end_overflows() but forcing the parameters to @type.
+ *
+ * Returns: true if the endpoint exceeds the boundary.
+ */
+#define range_end_overflows_t(type, start, size, max) \
+	range_end_overflows((type)(start), (type)(size), (type)(max))
+
+/**
  * castable_to_type - like __same_type(), but also allows for casted literals
  *
  * @n: variable or constant value
diff --git a/include/linux/screen_info.h b/include/linux/screen_info.h
index 923d68e07679..1690706206e8 100644
--- a/include/linux/screen_info.h
+++ b/include/linux/screen_info.h
@@ -12,6 +12,7 @@
 #define SCREEN_INFO_MAX_RESOURCES	3
 
 struct pci_dev;
+struct pixel_format;
 struct resource;
 
 static inline bool __screen_info_has_lfb(unsigned int type)
@@ -136,6 +137,7 @@ static inline u32 __screen_info_vesapm_info_base(const struct screen_info *si)
 ssize_t screen_info_resources(const struct screen_info *si, struct resource *r, size_t num);
 
 u32 __screen_info_lfb_bits_per_pixel(const struct screen_info *si);
+int screen_info_pixel_format(const struct screen_info *si, struct pixel_format *f);
 
 #if defined(CONFIG_PCI)
 void screen_info_apply_fixups(void);