Commit Graph

1980 Commits

Author SHA1 Message Date
Linus Torvalds
ebcfbf02ab IOMMU Updates for Linux v6.11
- Core:
   * Support for the "ats-supported" device-tree property.
 
   * Removal of the 'ops' field from 'struct iommu_fwspec'.
 
   * Introduction of iommu_paging_domain_alloc() and partial conversion
     of existing users.
 
   * Introduce 'struct iommu_attach_handle' and provide corresponding
     IOMMU interfaces which will be used by the IOMMUFD subsystem.
 
   * Remove stale documentation.
 
   * Add missing MODULE_DESCRIPTION() macro.
 
   * Misc cleanups.
 
 - Allwinner Sun50i:
   * Ensure bypass mode is disabled on H616 SoCs.
 
   * Ensure page-tables are allocated below 4GiB for the 32-bit
     page-table walker.
 
   * Add new device-tree compatible strings.
 
 - AMD Vi:
   * Use try_cmpxchg64() instead of cmpxchg64() when updating pte.
 
 - Arm SMMUv2:
   * Print much more useful information on context faults.
 
   * Fix Qualcomm TBU probing when CONFIG_ARM_SMMU_QCOM_DEBUG=n.
 
   * Add new Qualcomm device-tree bindings.
 
 - Arm SMMUv3:
   * Support for hardware update of access/dirty bits and reporting via
     IOMMUFD.
 
   * More driver rework from Jason, this time updating the PASID/SVA support
     to prepare for full IOMMUFD support.
 
   * Add missing MODULE_DESCRIPTION() macro.
 
   * Minor fixes and cleanups.
 
 - NVIDIA Tegra:
 
   * Fix for benign fwspec initialisation issue exposed by rework on the
     core branch.
 
 - Intel VT-d:
 
   * Use try_cmpxchg64() instead of cmpxchg64() when updating pte.
 
   * Use READ_ONCE() to read volatile descriptor status.
 
   * Remove support for handling Execute-Requested requests.
 
   * Avoid calling iommu_domain_alloc().
 
   * Minor fixes and refactoring.
 
 - Qualcomm MSM:
 
   * Updates to the device-tree bindings.
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Merge tag 'iommu-updates-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux

Pull iommu updates from Will Deacon:
 "Core:

   - Support for the "ats-supported" device-tree property

   - Removal of the 'ops' field from 'struct iommu_fwspec'

   - Introduction of iommu_paging_domain_alloc() and partial conversion
     of existing users

   - Introduce 'struct iommu_attach_handle' and provide corresponding
     IOMMU interfaces which will be used by the IOMMUFD subsystem

   - Remove stale documentation

   - Add missing MODULE_DESCRIPTION() macro

   - Misc cleanups

  Allwinner Sun50i:

   - Ensure bypass mode is disabled on H616 SoCs

   - Ensure page-tables are allocated below 4GiB for the 32-bit
     page-table walker

   - Add new device-tree compatible strings

  AMD Vi:

   - Use try_cmpxchg64() instead of cmpxchg64() when updating pte

  Arm SMMUv2:

   - Print much more useful information on context faults

   - Fix Qualcomm TBU probing when CONFIG_ARM_SMMU_QCOM_DEBUG=n

   - Add new Qualcomm device-tree bindings

  Arm SMMUv3:

   - Support for hardware update of access/dirty bits and reporting via
     IOMMUFD

   - More driver rework from Jason, this time updating the PASID/SVA
     support to prepare for full IOMMUFD support

   - Add missing MODULE_DESCRIPTION() macro

   - Minor fixes and cleanups

  NVIDIA Tegra:

   - Fix for benign fwspec initialisation issue exposed by rework on the
     core branch

  Intel VT-d:

   - Use try_cmpxchg64() instead of cmpxchg64() when updating pte

   - Use READ_ONCE() to read volatile descriptor status

   - Remove support for handling Execute-Requested requests

   - Avoid calling iommu_domain_alloc()

   - Minor fixes and refactoring

  Qualcomm MSM:

   - Updates to the device-tree bindings"

* tag 'iommu-updates-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux: (72 commits)
  iommu/tegra-smmu: Pass correct fwnode to iommu_fwspec_init()
  iommu/vt-d: Fix identity map bounds in si_domain_init()
  iommu: Move IOMMU_DIRTY_NO_CLEAR define
  dt-bindings: iommu: Convert msm,iommu-v0 to yaml
  iommu/vt-d: Fix aligned pages in calculate_psi_aligned_address()
  iommu/vt-d: Limit max address mask to MAX_AGAW_PFN_WIDTH
  docs: iommu: Remove outdated Documentation/userspace-api/iommu.rst
  arm64: dts: fvp: Enable PCIe ATS for Base RevC FVP
  iommu/of: Support ats-supported device-tree property
  dt-bindings: PCI: generic: Add ats-supported property
  iommu: Remove iommu_fwspec ops
  OF: Simplify of_iommu_configure()
  ACPI: Retire acpi_iommu_fwspec_ops()
  iommu: Resolve fwspec ops automatically
  iommu/mediatek-v1: Clean up redundant fwspec checks
  RDMA/usnic: Use iommu_paging_domain_alloc()
  wifi: ath11k: Use iommu_paging_domain_alloc()
  wifi: ath10k: Use iommu_paging_domain_alloc()
  drm/msm: Use iommu_paging_domain_alloc()
  vhost-vdpa: Use iommu_paging_domain_alloc()
  ...
2024-07-19 09:59:58 -07:00
Linus Torvalds
0ffb8a4c96 Devicetree updates for v6.11:
DT Bindings:
 - Convert and add a bunch of IBM FSI related bindings
 
 - Add a new schema listing legacy compatibles which will (probably)
   never be documented. This will silence various checks warning about
   them.
 
 - Add bindings for Sierra Wireless mangOH Green SPI IoT interface, new
   Arm 2024 Cortex and Neoverse CPUs, QCom sc8180x PDC, QCom SDX75 GPI
   DMA, imx8mp/imx8qxp fsl,irqsteer, and Renesas RZ/G2UL CRU and CSI-2
   blocks
 
 - Convert Spreadtrum sprd-timer, FSL cpm_qe, FSL fsl,ls-scfg-msi, FSL
   q(b)man-*, FSL qoriq-mc, and img,pdc-wdt bindings to DT schema
 
 - Drop obsolete stericsson,abx500.txt
 
 DT core:
 - Update dtc to upstream version v1.7.0-93-g1df7b047fe43
 
 - Add support to run DT validation on DTs with applied overlays
 
 - Add helper for creating boolean properties in dynamic nodes and use
   that for dynamic PCI nodes
 
 - Clean-up early parsing of '#{address,size}-cells'
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Merge tag 'devicetree-for-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree updates from Rob Herring:
 "DT Bindings:

   - Convert and add a bunch of IBM FSI related bindings

   - Add a new schema listing legacy compatibles which will (probably)
     never be documented. This will silence various checks warning about
     them.

   - Add bindings for Sierra Wireless mangOH Green SPI IoT interface,
     new Arm 2024 Cortex and Neoverse CPUs, QCom sc8180x PDC, QCom SDX75
     GPI DMA, imx8mp/imx8qxp fsl,irqsteer, and Renesas RZ/G2UL CRU and
     CSI-2 blocks

   - Convert Spreadtrum sprd-timer, FSL cpm_qe, FSL fsl,ls-scfg-msi, FSL
     q(b)man-*, FSL qoriq-mc, and img,pdc-wdt bindings to DT schema

   - Drop obsolete stericsson,abx500.txt

  DT core:

   - Update dtc to upstream version v1.7.0-93-g1df7b047fe43

   - Add support to run DT validation on DTs with applied overlays

   - Add helper for creating boolean properties in dynamic nodes and use
     that for dynamic PCI nodes

   - Clean-up early parsing of '#{address,size}-cells'"

* tag 'devicetree-for-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (39 commits)
  dt-bindings: timer: sprd-timer: convert to YAML
  dt-bindings: incomplete-devices: document devices without bindings
  dt-bindings: trivial-devices: document the Sierra Wireless mangOH Green SPI IoT interface
  scripts/dtc: Update to upstream version v1.7.0-93-g1df7b047fe43
  dt-bindings: soc: fsl: Add fsl,ls1028a-reset for reset syscon node
  dt-bindings: soc: fsl: cpm_qe: convert to yaml format
  dt-bindings: i2c: i2c-fsi: Convert to json-schema
  dt-bindings: fsi: Document the FSI Hub Controller
  dt-bindings: fsi: Document the AST2700 FSI controller
  dt-bindings: fsi: ast2600-fsi-master: Convert to json-schema
  dt-bindings: fsi: ibm,i2cr-fsi-master: Reference common FSI controller
  dt-bindings: fsi: Document the FSI controller common properties
  dt-bindings: fsi: Document the IBM SBEFIFO engine
  dt-bindings: fsi: p9-occ: Convert to json-schema
  dt-bindings: fsi: Document the IBM SCOM engine
  dt-bindings: fsi: fsi2spi: Document SPI controller child nodes
  dt-bindings: interrupt-controller: convert fsl,ls-scfg-msi to yaml
  dt-bindings: soc: fsl: Convert q(b)man-* to yaml format
  dt-bindings: misc: fsl,qoriq-mc: convert to yaml format
  dt-bindings: drop stale Anson Huang from maintainers
  ...
2024-07-17 18:07:31 -07:00
Herve Codina
1e4368395f of: unittest: Add a test case for of_changeset_add_prop_bool()
Improve of_unittest_changeset_prop() to have a test case for the
newly introduced of_changeset_add_prop_bool().

Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Link: https://lore.kernel.org/r/20240527161450.326615-17-herve.codina@bootlin.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2024-07-08 17:40:30 -06:00
Herve Codina
f2b388d63e of: dynamic: Introduce of_changeset_add_prop_bool()
APIs to add some properties in a changeset exist but nothing to add a DT
boolean property (i.e. a property without any values).

Fill this lack with of_changeset_add_prop_bool().

Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Link: https://lore.kernel.org/r/20240527161450.326615-16-herve.codina@bootlin.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2024-07-08 17:40:30 -06:00
Herve Codina
aa5545ae62 of: unittest: Add tests for changeset properties adding
No test cases are present to test the of_changes_add_prop_*() function
family.

Add a new test to fill this lack.
Functions tested are:
  - of_changes_add_prop_string()
  - of_changes_add_prop_string_array()
  - of_changeset_add_prop_u32()
  - of_changeset_add_prop_u32_array()

Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Link: https://lore.kernel.org/r/20240527161450.326615-15-herve.codina@bootlin.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2024-07-08 17:40:30 -06:00
Herve Codina
6badc62f8f of: dynamic: Constify parameter in of_changeset_add_prop_string_array()
The str_array parameter has no reason to be an un-const array.
Indeed, elements of the 'str_array' array are not changed by the code.

Constify the 'str_array' array parameter.
With this const qualifier added, the following construction is allowed:
  static const char * const tab_str[] = { "string1", "string2" };
  of_changeset_add_prop_string_array(..., tab_str, ARRAY_SIZE(tab_str));

Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Link: https://lore.kernel.org/r/20240527161450.326615-14-herve.codina@bootlin.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2024-07-08 17:40:30 -06:00
Marc Zyngier
2cf6b7d15a of/irq: Disable "interrupt-map" parsing for PASEMI Nemo
Once again, we've broken PASEMI Nemo boards with its incomplete
"interrupt-map" translations. Commit 935df1bd40 ("of/irq: Factor out
parsing of interrupt-map parent phandle+args from of_irq_parse_raw()")
changed the behavior resulting in the existing work-around not taking
effect. Rework the work-around to just skip parsing "interrupt-map" up
front by using the of_irq_imap_abusers list.

Fixes: 935df1bd40 ("of/irq: Factor out parsing of interrupt-map parent phandle+args from of_irq_parse_raw()")
Reported-by: Christian Zigotzky <chzigotzky@xenosoft.de>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/86ed8ba2sp.wl-maz@kernel.org
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2024-07-08 15:42:20 -06:00
Robin Murphy
5f937bc48a OF: Simplify of_iommu_configure()
We no longer have a notion of partially-initialised fwspecs existing,
and we also no longer need to use an iommu_ops pointer to return status
to of_dma_configure(). Clean up the remains of those, which lends itself
to clarifying the logic around the dma_range_map allocation as well.

Acked-by: Rob Herring (Arm) <robh@kernel.org>
Tested-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/61972f88e31a6eda8bf5852f0853951164279a3c.1719919669.git.robin.murphy@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
2024-07-04 14:36:04 +01:00
Rob Herring
596c29f3c8 of/fdt: avoid re-parsing '#{address,size}-cells' in of_fdt_limit_memory
Now that we initialize dt_root_addr_cells and dt_root_size_cells earlier,
use them and simplify of_fdt_limit_memory.

Link: https://lore.kernel.org/all/20180830190523.31474-3-robh@kernel.org/
Signed-off-by: Rob Herring <robh@kernel.org>
2024-05-31 08:33:54 -05:00
Rob Herring
554b662336 of/fdt: Scan the root node properties earlier
Scan the root node properties (#{size,address}-cells) earlier, so that
the dt_root_addr_cells and dt_root_size_cells variables are initialized
and can be used.

Link: https://lore.kernel.org/all/20180830190523.31474-2-robh@kernel.org/
Signed-off-by: Rob Herring <robh@kernel.org>
2024-05-31 08:33:54 -05:00
Marc Zyngier
e7985f4360 of: property: Fix fw_devlink handling of interrupt-map
Commit d976c6f4b3 ("of: property: Add fw_devlink support for
interrupt-map property") tried to do what it says on the tin,
but failed on a couple of points:

- it confuses bytes and cells. Not a huge deal, except when it
  comes to pointer arithmetic

- it doesn't really handle anything but interrupt-maps that have
  their parent #address-cells set to 0

The combinations of the two leads to some serious fun on my M1
box, with plenty of WARN-ON() firing all over the shop, and
amusing values being generated for interrupt specifiers.

Having 2 versions of parsing code for "interrupt-map" was a bad
idea. Now that the common parsing parts have been refactored
into of_irq_parse_imap_parent(), rework the code here to use it
instead and fix the pointer arithmetic.

Note that the dependency will be a bit different than the original code
when the interrupt-map points to another interrupt-map. In this case,
the original code would resolve to the final interrupt controller. Now
the dependency is the parent interrupt-map (which itself should have a
dependency to the parent). It is possible that a node with an
interrupt-map has no driver.

Fixes: d976c6f4b3 ("of: property: Add fw_devlink support for interrupt-map property")
Signed-off-by: Marc Zyngier <maz@kernel.org>
Co-developed-by: Rob Herring (Arm) <robh@kernel.org>
Cc: Saravana Kannan <saravanak@google.com>
Tested-by: Marc Zyngier <maz@kernel.org>
Tested-by: Anup Patel <apatel@ventanamicro.com>
Link: https://lore.kernel.org/r/20240529-dt-interrupt-map-fix-v2-2-ef86dc5bcd2a@kernel.org
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2024-05-30 19:43:47 -05:00
Rob Herring (Arm)
935df1bd40 of/irq: Factor out parsing of interrupt-map parent phandle+args from of_irq_parse_raw()
Factor out the parsing of interrupt-map interrupt parent phandle and its
arg cells to a separate function, of_irq_parse_imap_parent(), so that it
can be used in other parsing scenarios (e.g. fw_devlink).

There was a refcount leak on non-matching entries when iterating thru
"interrupt-map" which is fixed.

Tested-by: Marc Zyngier <maz@kernel.org>
Tested-by: Anup Patel <apatel@ventanamicro.com>
Link: https://lore.kernel.org/r/20240529-dt-interrupt-map-fix-v2-1-ef86dc5bcd2a@kernel.org
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2024-05-30 19:43:19 -05:00
Jeff Johnson
a0fc1a053b of: of_test: add MODULE_DESCRIPTION()
Fix the 'make W=1' warning:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/of/of_test.o

Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://lore.kernel.org/r/20240524-md-of-of_test-v1-1-6ebd078d620f@quicinc.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2024-05-28 12:10:00 -05:00
Linus Torvalds
0a07e09085 I2C core removes an argument from the i2c_mux_add_adapter() call to
further deprecate class based I2C device instantiation. All users are
 converted, too. Other that that, Andi collected a number if I2C host
 driver patches. Those merges have their own description.
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Merge tag 'i2c-for-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Pull i2c updates from Wolfram Sang:
 "i2c core removes an argument from the i2c_mux_add_adapter() call to
  further deprecate class based I2C device instantiation. All users are
  converted, too.

  Other that that, Andi collected a number if I2C host driver patches.
  Those merges have their own description"

* tag 'i2c-for-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (72 commits)
  power: supply: sbs-manager: Remove class argument from i2c_mux_add_adapter()
  i2c: mux: Remove class argument from i2c_mux_add_adapter()
  i2c: synquacer: Fix an error handling path in synquacer_i2c_probe()
  i2c: acpi: Unbind mux adapters before delete
  i2c: designware: Replace MODULE_ALIAS() with MODULE_DEVICE_TABLE()
  i2c: pxa: use 'time_left' variable with wait_event_timeout()
  i2c: s3c2410: use 'time_left' variable with wait_event_timeout()
  i2c: rk3x: use 'time_left' variable with wait_event_timeout()
  i2c: qcom-geni: use 'time_left' variable with wait_for_completion_timeout()
  i2c: jz4780: use 'time_left' variable with wait_for_completion_timeout()
  i2c: synquacer: use 'time_left' variable with wait_for_completion_timeout()
  i2c: stm32f7: use 'time_left' variable with wait_for_completion_timeout()
  i2c: stm32f4: use 'time_left' variable with wait_for_completion_timeout()
  i2c: st: use 'time_left' variable with wait_for_completion_timeout()
  i2c: omap: use 'time_left' variable with wait_for_completion_timeout()
  i2c: imx-lpi2c: use 'time_left' variable with wait_for_completion_timeout()
  i2c: hix5hd2: use 'time_left' variable with wait_for_completion_timeout()
  i2c: exynos5: use 'time_left' variable with wait_for_completion_timeout()
  i2c: digicolor: use 'time_left' variable with wait_for_completion_timeout()
  i2c: amd-mp2-plat: use 'time_left' variable with wait_for_completion_timeout()
  ...
2024-05-20 08:55:18 -07:00
Linus Torvalds
0cc6f45cec IOMMU Updates for Linux v6.10
Including:
 
 	- Core:
 	  - IOMMU memory usage observability - This will make the memory used
 	    for IO page tables explicitly visible.
 	  - Simplify arch_setup_dma_ops()
 
 	- Intel VT-d:
 	  - Consolidate domain cache invalidation
 	  - Remove private data from page fault message
 	  - Allocate DMAR fault interrupts locally
 	  - Cleanup and refactoring
 
 	- ARM-SMMUv2:
 	  - Support for fault debugging hardware on Qualcomm implementations
 	  - Re-land support for the ->domain_alloc_paging() callback
 
 	- ARM-SMMUv3:
 	  - Improve handling of MSI allocation failure
 	  - Drop support for the "disable_bypass" cmdline option
 	  - Major rework of the CD creation code, following on directly from the
 	    STE rework merged last time around.
 	  - Add unit tests for the new STE/CD manipulation logic
 
 	- AMD-Vi:
 	  - Final part of SVA changes with generic IO page fault handling
 
 	- Renesas IPMMU:
 	  - Add support for R8A779H0 hardware
 
 	- A couple smaller fixes and updates across the sub-tree
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Merge tag 'iommu-updates-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull iommu updates from Joerg Roedel:
 "Core:
   - IOMMU memory usage observability - This will make the memory used
     for IO page tables explicitly visible.
   - Simplify arch_setup_dma_ops()

  Intel VT-d:
   - Consolidate domain cache invalidation
   - Remove private data from page fault message
   - Allocate DMAR fault interrupts locally
   - Cleanup and refactoring

  ARM-SMMUv2:
   - Support for fault debugging hardware on Qualcomm implementations
   - Re-land support for the ->domain_alloc_paging() callback

  ARM-SMMUv3:
   - Improve handling of MSI allocation failure
   - Drop support for the "disable_bypass" cmdline option
   - Major rework of the CD creation code, following on directly from
     the STE rework merged last time around.
   - Add unit tests for the new STE/CD manipulation logic

  AMD-Vi:
   - Final part of SVA changes with generic IO page fault handling

  Renesas IPMMU:
   - Add support for R8A779H0 hardware

  ... and a couple smaller fixes and updates across the sub-tree"

* tag 'iommu-updates-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (80 commits)
  iommu/arm-smmu-v3: Make the kunit into a module
  arm64: Properly clean up iommu-dma remnants
  iommu/amd: Enable Guest Translation after reading IOMMU feature register
  iommu/vt-d: Decouple igfx_off from graphic identity mapping
  iommu/amd: Fix compilation error
  iommu/arm-smmu-v3: Add unit tests for arm_smmu_write_entry
  iommu/arm-smmu-v3: Build the whole CD in arm_smmu_make_s1_cd()
  iommu/arm-smmu-v3: Move the CD generation for SVA into a function
  iommu/arm-smmu-v3: Allocate the CD table entry in advance
  iommu/arm-smmu-v3: Make arm_smmu_alloc_cd_ptr()
  iommu/arm-smmu-v3: Consolidate clearing a CD table entry
  iommu/arm-smmu-v3: Move the CD generation for S1 domains into a function
  iommu/arm-smmu-v3: Make CD programming use arm_smmu_write_entry()
  iommu/arm-smmu-v3: Add an ops indirection to the STE code
  iommu/arm-smmu-qcom: Don't build debug features as a kernel module
  iommu/amd: Add SVA domain support
  iommu: Add ops->domain_alloc_sva()
  iommu/amd: Initial SVA support for AMD IOMMU
  iommu/amd: Add support for enable/disable IOPF
  iommu/amd: Add IO page fault notifier handler
  ...
2024-05-18 10:55:13 -07:00
Linus Torvalds
06f054b1fe Devicetree for v6.10:
DT Bindings:
 - Convert samsung,exynos5-dp, atmel,lcdc, aspeed,ast2400-wdt bindings to
   schemas
 
 - Add bindings for Allwinner H616 NMI controller, Renesas r8a779g0 irqc,
   Renesas R-Car V4M TMU and CMT timers, Freescale S32G3 linflexuart, and
   Mediatek MT7988 XHCI
 
 - Add 'reg' constraints on DSI and SPI display panels
 
 - More dropping of unnecessary quotes in schemas
 
 - Use full paths rather than relative paths in schema $refs
 
 - Drop redundant storing of phandle for reserved memory
 
 DT Core:
 - Use scope based cleanups for kfree() and of_node_put()
 
 - Track interrupt-map and power-supplies for fw_devlink
 
 - Add buffer overflow check in of_modalias()
 
 - Add and use __of_prop_free() helper for freeing struct property
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Merge tag 'devicetree-for-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree updates from Rob Herring:
 "DT Bindings:

   - Convert samsung,exynos5-dp, atmel,lcdc, aspeed,ast2400-wdt bindings
     to schemas

   - Add bindings for Allwinner H616 NMI controller, Renesas r8a779g0
     irqc, Renesas R-Car V4M TMU and CMT timers, Freescale S32G3
     linflexuart, and Mediatek MT7988 XHCI

   - Add 'reg' constraints on DSI and SPI display panels

   - More dropping of unnecessary quotes in schemas

   - Use full paths rather than relative paths in schema $refs

   - Drop redundant storing of phandle for reserved memory

  DT Core:

   - Use scope based cleanups for kfree() and of_node_put()

   - Track interrupt-map and power-supplies for fw_devlink

   - Add buffer overflow check in of_modalias()

   - Add and use __of_prop_free() helper for freeing struct property"

* tag 'devicetree-for-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (25 commits)
  of: property: Add fw_devlink support for interrupt-map property
  dt-bindings: display: panel: constrain 'reg' in DSI panels
  dt-bindings: display: panel: constrain 'reg' in SPI panels
  dt-bindings: display: samsung,ams495qa01: add missing SPI properties ref
  dt-bindings: Use full path to other schemas
  dt-bindings: PCI: qcom,pcie-sm8350: Drop redundant 'oneOf' sub-schema
  of: module: add buffer overflow check in of_modalias()
  dt-bindings: PCI: microchip: increase number of items in ranges property
  dt-bindings: Drop unnecessary quotes on keys
  dt-bindings: interrupt-controller: mediatek,mt6577-sysirq: Drop unnecessary quotes
  of: property: Use scope based cleanup on port_node
  of: reserved_mem: Remove the use of phandle from the reserved_mem APIs
  of: property: fw_devlink: Add support for "power-supplies" binding
  dt-bindings: watchdog: aspeed,ast2400-wdt: Convert to DT schema
  dt-bindings: irq: sun7i-nmi: Add binding for the H616 NMI controller
  dt-bindings: interrupt-controller: renesas,irqc: Add r8a779g0 support
  dt-bindings: timer: renesas,tmu: Add R-Car V4M support
  dt-bindings: timer: renesas,cmt: Add R-Car V4M support
  of: Use scope based of_node_put() cleanups
  of: Use scope based kfree() cleanups
  ...
2024-05-17 17:27:49 -07:00
Linus Torvalds
1b294a1f35 Networking changes for 6.10.
Core & protocols
 ----------------
 
  - Complete rework of garbage collection of AF_UNIX sockets.
    AF_UNIX is prone to forming reference count cycles due to fd passing
    functionality. New method based on Tarjan's Strongly Connected Components
    algorithm should be both faster and remove a lot of workarounds
    we accumulated over the years.
 
  - Add TCP fraglist GRO support, allowing chaining multiple TCP packets
    and forwarding them together. Useful for small switches / routers which
    lack basic checksum offload in some scenarios (e.g. PPPoE).
 
  - Support using SMP threads for handling packet backlog i.e. packet
    processing from software interfaces and old drivers which don't
    use NAPI. This helps move the processing out of the softirq jumble.
 
  - Continue work of converting from rtnl lock to RCU protection.
    Don't require rtnl lock when reading: IPv6 routing FIB, IPv6 address
    labels, netdev threaded NAPI sysfs files, bonding driver's sysfs files,
    MPLS devconf, IPv4 FIB rules, netns IDs, tcp metrics, TC Qdiscs,
    neighbor entries, ARP entries via ioctl(SIOCGARP), a lot of the link
    information available via rtnetlink.
 
  - Small optimizations from Eric to UDP wake up handling, memory accounting,
    RPS/RFS implementation, TCP packet sizing etc.
 
  - Allow direct page recycling in the bulk API used by XDP, for +2% PPS.
 
  - Support peek with an offset on TCP sockets.
 
  - Add MPTCP APIs for querying last time packets were received/sent/acked,
    and whether MPTCP "upgrade" succeeded on a TCP socket.
 
  - Add intra-node communication shortcut to improve SMC performance.
 
  - Add IPv6 (and IPv{4,6}-over-IPv{4,6}) support to the GTP protocol driver.
 
  - Add HSR-SAN (RedBOX) mode of operation to the HSR protocol driver.
 
  - Add reset reasons for tracing what caused a TCP reset to be sent.
 
  - Introduce direction attribute for xfrm (IPSec) states.
    State can be used either for input or output packet processing.
 
 Things we sprinkled into general kernel code
 --------------------------------------------
 
  - Add bitmap_{read,write}(), bitmap_size(), expose BYTES_TO_BITS().
    This required touch-ups and renaming of a few existing users.
 
  - Add Endian-dependent __counted_by_{le,be} annotations.
 
  - Make building selftests "quieter" by printing summaries like
    "CC object.o" rather than full commands with all the arguments.
 
 Netfilter
 ---------
 
  - Use GFP_KERNEL to clone elements, to deal better with OOM situations
    and avoid failures in the .commit step.
 
 BPF
 ---
 
  - Add eBPF JIT for ARCv2 CPUs.
 
  - Support attaching kprobe BPF programs through kprobe_multi link in
    a session mode, meaning, a BPF program is attached to both function entry
    and return, the entry program can decide if the return program gets
    executed and the entry program can share u64 cookie value with return
    program. "Session mode" is a common use-case for tetragon and bpftrace.
 
  - Add the ability to specify and retrieve BPF cookie for raw tracepoint
    programs in order to ease migration from classic to raw tracepoints.
 
  - Add an internal-only BPF per-CPU instruction for resolving per-CPU
    memory addresses and implement support in x86, ARM64 and RISC-V JITs.
    This allows inlining functions which need to access per-CPU state.
 
  - Optimize x86 BPF JIT's emit_mov_imm64, and add support for various
    atomics in bpf_arena which can be JITed as a single x86 instruction.
    Support BPF arena on ARM64.
 
  - Add a new bpf_wq API for deferring events and refactor process-context
    bpf_timer code to keep common code where possible.
 
  - Harden the BPF verifier's and/or/xor value tracking.
 
  - Introduce crypto kfuncs to let BPF programs call kernel crypto APIs.
 
  - Support bpf_tail_call_static() helper for BPF programs with GCC 13.
 
  - Add bpf_preempt_{disable,enable}() kfuncs in order to allow a BPF
    program to have code sections where preemption is disabled.
 
 Driver API
 ----------
 
  - Skip software TC processing completely if all installed rules are
    marked as HW-only, instead of checking the HW-only flag rule by rule.
 
  - Add support for configuring PoE (Power over Ethernet), similar to
    the already existing support for PoDL (Power over Data Line) config.
 
  - Initial bits of a queue control API, for now allowing a single queue
    to be reset without disturbing packet flow to other queues.
 
  - Common (ethtool) statistics for hardware timestamping.
 
 Tests and tooling
 -----------------
 
  - Remove the need to create a config file to run the net forwarding tests
    so that a naive "make run_tests" can exercise them.
 
  - Define a method of writing tests which require an external endpoint
    to communicate with (to send/receive data towards the test machine).
    Add a few such tests.
 
  - Create a shared code library for writing Python tests. Expose the YAML
    Netlink library from tools/ to the tests for easy Netlink access.
 
  - Move netfilter tests under net/, extend them, separate performance tests
    from correctness tests, and iron out issues found by running them
    "on every commit".
 
  - Refactor BPF selftests to use common network helpers.
 
  - Further work filling in YAML definitions of Netlink messages for:
    nftables, team driver, bonding interfaces, vlan interfaces, VF info,
    TC u32 mark, TC police action.
 
  - Teach Python YAML Netlink to decode attribute policies.
 
  - Extend the definition of the "indexed array" construct in the specs
    to cover arrays of scalars rather than just nests.
 
  - Add hyperlinks between definitions in generated Netlink docs.
 
 Drivers
 -------
 
  - Make sure unsupported flower control flags are rejected by drivers,
    and make more drivers report errors directly to the application rather
    than dmesg (large number of driver changes from Asbjørn Sloth Tønnesen).
 
  - Ethernet high-speed NICs:
    - Broadcom (bnxt):
      - support multiple RSS contexts and steering traffic to them
      - support XDP metadata
      - make page pool allocations more NUMA aware
    - Intel (100G, ice, idpf):
      - extract datapath code common among Intel drivers into a library
      - use fewer resources in switchdev by sharing queues with the PF
      - add PFCP filter support
      - add Ethernet filter support
      - use a spinlock instead of HW lock in PTP clock ops
      - support 5 layer Tx scheduler topology
    - nVidia/Mellanox:
      - 800G link modes and 100G SerDes speeds
      - per-queue IRQ coalescing configuration
    - Marvell Octeon:
      - support offloading TC packet mark action
 
  - Ethernet NICs consumer, embedded and virtual:
    - stop lying about skb->truesize in USB Ethernet drivers, it messes up
      TCP memory calculations
    - Google cloud vNIC:
      - support changing ring size via ethtool
      - support ring reset using the queue control API
    - VirtIO net:
      - expose flow hash from RSS to XDP
      - per-queue statistics
      - add selftests
    - Synopsys (stmmac):
      - support controllers which require an RX clock signal from the MII
        bus to perform their hardware initialization
    - TI:
      - icssg_prueth: support ICSSG-based Ethernet on AM65x SR1.0 devices
      - icssg_prueth: add SW TX / RX Coalescing based on hrtimers
      - cpsw: minimal XDP support
    - Renesas (ravb):
      - support describing the MDIO bus
    - Realtek (r8169):
      - add support for RTL8168M
    - Microchip Sparx5:
      - matchall and flower actions mirred and redirect
 
  - Ethernet switches:
    - nVidia/Mellanox:
      - improve events processing performance
    - Marvell:
      - add support for MV88E6250 family internal PHYs
    - Microchip:
      - add DCB and DSCP mapping support for KSZ switches
      - vsc73xx: convert to PHYLINK
    - Realtek:
      - rtl8226b/rtl8221b: add C45 instances and SerDes switching
 
  - Many driver changes related to PHYLIB and PHYLINK deprecated API cleanup.
 
  - Ethernet PHYs:
    - Add a new driver for Airoha EN8811H 2.5 Gigabit PHY.
    - micrel: lan8814: add support for PPS out and external timestamp trigger
 
  - WiFi:
    - Disable Wireless Extensions (WEXT) in all Wi-Fi 7 devices drivers.
      Modern devices can only be configured using nl80211.
    - mac80211/cfg80211
      - handle color change per link for WiFi 7 Multi-Link Operation
    - Intel (iwlwifi):
      - don't support puncturing in 5 GHz
      - support monitor mode on passive channels
      - BZ-W device support
      - P2P with HE/EHT support
      - re-add support for firmware API 90
      - provide channel survey information for Automatic Channel Selection
    - MediaTek (mt76):
      - mt7921 LED control
      - mt7925 EHT radiotap support
      - mt7920e PCI support
    - Qualcomm (ath11k):
      - P2P support for QCA6390, WCN6855 and QCA2066
      - support hibernation
      - ieee80211-freq-limit Device Tree property support
    - Qualcomm (ath12k):
      - refactoring in preparation of multi-link support
      - suspend and hibernation support
      - ACPI support
      - debugfs support, including dfs_simulate_radar support
    - RealTek:
      - rtw88: RTL8723CS SDIO device support
      - rtw89: RTL8922AE Wi-Fi 7 PCI device support
      - rtw89: complete features of new WiFi 7 chip 8922AE including
        BT-coexistence and Wake-on-WLAN
      - rtw89: use BIOS ACPI settings to set TX power and channels
      - rtl8xxxu: enable Management Frame Protection (MFP) support
 
  - Bluetooth:
    - support for Intel BlazarI and Filmore Peak2 (BE201)
    - support for MediaTek MT7921S SDIO
    - initial support for Intel PCIe BT driver
    - remove HCI_AMP support
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
 "Core & protocols:

   - Complete rework of garbage collection of AF_UNIX sockets.

     AF_UNIX is prone to forming reference count cycles due to fd
     passing functionality. New method based on Tarjan's Strongly
     Connected Components algorithm should be both faster and remove a
     lot of workarounds we accumulated over the years.

   - Add TCP fraglist GRO support, allowing chaining multiple TCP
     packets and forwarding them together. Useful for small switches /
     routers which lack basic checksum offload in some scenarios (e.g.
     PPPoE).

   - Support using SMP threads for handling packet backlog i.e. packet
     processing from software interfaces and old drivers which don't use
     NAPI. This helps move the processing out of the softirq jumble.

   - Continue work of converting from rtnl lock to RCU protection.

     Don't require rtnl lock when reading: IPv6 routing FIB, IPv6
     address labels, netdev threaded NAPI sysfs files, bonding driver's
     sysfs files, MPLS devconf, IPv4 FIB rules, netns IDs, tcp metrics,
     TC Qdiscs, neighbor entries, ARP entries via ioctl(SIOCGARP), a lot
     of the link information available via rtnetlink.

   - Small optimizations from Eric to UDP wake up handling, memory
     accounting, RPS/RFS implementation, TCP packet sizing etc.

   - Allow direct page recycling in the bulk API used by XDP, for +2%
     PPS.

   - Support peek with an offset on TCP sockets.

   - Add MPTCP APIs for querying last time packets were received/sent/acked
     and whether MPTCP "upgrade" succeeded on a TCP socket.

   - Add intra-node communication shortcut to improve SMC performance.

   - Add IPv6 (and IPv{4,6}-over-IPv{4,6}) support to the GTP protocol
     driver.

   - Add HSR-SAN (RedBOX) mode of operation to the HSR protocol driver.

   - Add reset reasons for tracing what caused a TCP reset to be sent.

   - Introduce direction attribute for xfrm (IPSec) states. State can be
     used either for input or output packet processing.

  Things we sprinkled into general kernel code:

   - Add bitmap_{read,write}(), bitmap_size(), expose BYTES_TO_BITS().

     This required touch-ups and renaming of a few existing users.

   - Add Endian-dependent __counted_by_{le,be} annotations.

   - Make building selftests "quieter" by printing summaries like
     "CC object.o" rather than full commands with all the arguments.

  Netfilter:

   - Use GFP_KERNEL to clone elements, to deal better with OOM
     situations and avoid failures in the .commit step.

  BPF:

   - Add eBPF JIT for ARCv2 CPUs.

   - Support attaching kprobe BPF programs through kprobe_multi link in
     a session mode, meaning, a BPF program is attached to both function
     entry and return, the entry program can decide if the return
     program gets executed and the entry program can share u64 cookie
     value with return program. "Session mode" is a common use-case for
     tetragon and bpftrace.

   - Add the ability to specify and retrieve BPF cookie for raw
     tracepoint programs in order to ease migration from classic to raw
     tracepoints.

   - Add an internal-only BPF per-CPU instruction for resolving per-CPU
     memory addresses and implement support in x86, ARM64 and RISC-V
     JITs. This allows inlining functions which need to access per-CPU
     state.

   - Optimize x86 BPF JIT's emit_mov_imm64, and add support for various
     atomics in bpf_arena which can be JITed as a single x86
     instruction. Support BPF arena on ARM64.

   - Add a new bpf_wq API for deferring events and refactor
     process-context bpf_timer code to keep common code where possible.

   - Harden the BPF verifier's and/or/xor value tracking.

   - Introduce crypto kfuncs to let BPF programs call kernel crypto
     APIs.

   - Support bpf_tail_call_static() helper for BPF programs with GCC 13.

   - Add bpf_preempt_{disable,enable}() kfuncs in order to allow a BPF
     program to have code sections where preemption is disabled.

  Driver API:

   - Skip software TC processing completely if all installed rules are
     marked as HW-only, instead of checking the HW-only flag rule by
     rule.

   - Add support for configuring PoE (Power over Ethernet), similar to
     the already existing support for PoDL (Power over Data Line)
     config.

   - Initial bits of a queue control API, for now allowing a single
     queue to be reset without disturbing packet flow to other queues.

   - Common (ethtool) statistics for hardware timestamping.

  Tests and tooling:

   - Remove the need to create a config file to run the net forwarding
     tests so that a naive "make run_tests" can exercise them.

   - Define a method of writing tests which require an external endpoint
     to communicate with (to send/receive data towards the test
     machine). Add a few such tests.

   - Create a shared code library for writing Python tests. Expose the
     YAML Netlink library from tools/ to the tests for easy Netlink
     access.

   - Move netfilter tests under net/, extend them, separate performance
     tests from correctness tests, and iron out issues found by running
     them "on every commit".

   - Refactor BPF selftests to use common network helpers.

   - Further work filling in YAML definitions of Netlink messages for:
     nftables, team driver, bonding interfaces, vlan interfaces, VF
     info, TC u32 mark, TC police action.

   - Teach Python YAML Netlink to decode attribute policies.

   - Extend the definition of the "indexed array" construct in the specs
     to cover arrays of scalars rather than just nests.

   - Add hyperlinks between definitions in generated Netlink docs.

  Drivers:

   - Make sure unsupported flower control flags are rejected by drivers,
     and make more drivers report errors directly to the application
     rather than dmesg (large number of driver changes from Asbjørn
     Sloth Tønnesen).

   - Ethernet high-speed NICs:
      - Broadcom (bnxt):
         - support multiple RSS contexts and steering traffic to them
         - support XDP metadata
         - make page pool allocations more NUMA aware
      - Intel (100G, ice, idpf):
         - extract datapath code common among Intel drivers into a library
         - use fewer resources in switchdev by sharing queues with the PF
         - add PFCP filter support
         - add Ethernet filter support
         - use a spinlock instead of HW lock in PTP clock ops
         - support 5 layer Tx scheduler topology
      - nVidia/Mellanox:
         - 800G link modes and 100G SerDes speeds
         - per-queue IRQ coalescing configuration
      - Marvell Octeon:
         - support offloading TC packet mark action

   - Ethernet NICs consumer, embedded and virtual:
      - stop lying about skb->truesize in USB Ethernet drivers, it
        messes up TCP memory calculations
      - Google cloud vNIC:
         - support changing ring size via ethtool
         - support ring reset using the queue control API
      - VirtIO net:
         - expose flow hash from RSS to XDP
         - per-queue statistics
         - add selftests
      - Synopsys (stmmac):
         - support controllers which require an RX clock signal from the
           MII bus to perform their hardware initialization
      - TI:
         - icssg_prueth: support ICSSG-based Ethernet on AM65x SR1.0 devices
         - icssg_prueth: add SW TX / RX Coalescing based on hrtimers
         - cpsw: minimal XDP support
      - Renesas (ravb):
         - support describing the MDIO bus
      - Realtek (r8169):
         - add support for RTL8168M
      - Microchip Sparx5:
         - matchall and flower actions mirred and redirect

   - Ethernet switches:
      - nVidia/Mellanox:
         - improve events processing performance
      - Marvell:
         - add support for MV88E6250 family internal PHYs
      - Microchip:
         - add DCB and DSCP mapping support for KSZ switches
         - vsc73xx: convert to PHYLINK
      - Realtek:
         - rtl8226b/rtl8221b: add C45 instances and SerDes switching

   - Many driver changes related to PHYLIB and PHYLINK deprecated API
     cleanup

   - Ethernet PHYs:
      - Add a new driver for Airoha EN8811H 2.5 Gigabit PHY.
      - micrel: lan8814: add support for PPS out and external timestamp trigger

   - WiFi:
      - Disable Wireless Extensions (WEXT) in all Wi-Fi 7 devices
        drivers. Modern devices can only be configured using nl80211.
      - mac80211/cfg80211
         - handle color change per link for WiFi 7 Multi-Link Operation
      - Intel (iwlwifi):
         - don't support puncturing in 5 GHz
         - support monitor mode on passive channels
         - BZ-W device support
         - P2P with HE/EHT support
         - re-add support for firmware API 90
         - provide channel survey information for Automatic Channel Selection
      - MediaTek (mt76):
         - mt7921 LED control
         - mt7925 EHT radiotap support
         - mt7920e PCI support
      - Qualcomm (ath11k):
         - P2P support for QCA6390, WCN6855 and QCA2066
         - support hibernation
         - ieee80211-freq-limit Device Tree property support
      - Qualcomm (ath12k):
         - refactoring in preparation of multi-link support
         - suspend and hibernation support
         - ACPI support
         - debugfs support, including dfs_simulate_radar support
      - RealTek:
         - rtw88: RTL8723CS SDIO device support
         - rtw89: RTL8922AE Wi-Fi 7 PCI device support
         - rtw89: complete features of new WiFi 7 chip 8922AE including
           BT-coexistence and Wake-on-WLAN
         - rtw89: use BIOS ACPI settings to set TX power and channels
         - rtl8xxxu: enable Management Frame Protection (MFP) support

   - Bluetooth:
      - support for Intel BlazarI and Filmore Peak2 (BE201)
      - support for MediaTek MT7921S SDIO
      - initial support for Intel PCIe BT driver
      - remove HCI_AMP support"

* tag 'net-next-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1827 commits)
  selftests: netfilter: fix packetdrill conntrack testcase
  net: gro: fix napi_gro_cb zeroed alignment
  Bluetooth: btintel_pcie: Refactor and code cleanup
  Bluetooth: btintel_pcie: Fix warning reported by sparse
  Bluetooth: hci_core: Fix not handling hdev->le_num_of_adv_sets=1
  Bluetooth: btintel: Fix compiler warning for multi_v7_defconfig config
  Bluetooth: btintel_pcie: Fix compiler warnings
  Bluetooth: btintel_pcie: Add *setup* function to download firmware
  Bluetooth: btintel_pcie: Add support for PCIe transport
  Bluetooth: btintel: Export few static functions
  Bluetooth: HCI: Remove HCI_AMP support
  Bluetooth: L2CAP: Fix div-by-zero in l2cap_le_flowctl_init()
  Bluetooth: qca: Fix error code in qca_read_fw_build_info()
  Bluetooth: hci_conn: Use __counted_by() and avoid -Wfamnae warning
  Bluetooth: btintel: Add support for Filmore Peak2 (BE201)
  Bluetooth: btintel: Add support for BlazarI
  LE Create Connection command timeout increased to 20 secs
  dt-bindings: net: bluetooth: Add MediaTek MT7921S SDIO Bluetooth
  Bluetooth: compute LE flow credits based on recvbuf space
  Bluetooth: hci_sync: Use cmd->num_cis instead of magic number
  ...
2024-05-14 19:42:24 -07:00
Anup Patel
d976c6f4b3 of: property: Add fw_devlink support for interrupt-map property
Some of the PCI host controllers (such as generic PCI host controller)
use "interrupt-map" DT property to describe the mapping between PCI
endpoints and PCI interrupt pins. This is the only case where the
interrupts are not described in DT.

Currently, there is no fw_devlink created based on "interrupt-map"
DT property so interrupt controller is not guaranteed to be probed
before the PCI host controller. This affects every platform where
both PCI host controller and interrupt controllers are probed as
regular platform devices.

This creates fw_devlink between consumers (PCI host controller) and
supplier (interrupt controller) based on "interrupt-map" DT property.

Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20240509120820.1430587-1-apatel@ventanamicro.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2024-05-13 09:57:35 -05:00
Heiner Kallweit
fec1982d70 i2c: mux: Remove class argument from i2c_mux_add_adapter()
99a741aa7a2d ("i2c: mux: gpio: remove support for class-based device
instantiation") removed the last call to i2c_mux_add_adapter() with a
non-null class argument. Therefore the class argument can be removed.

Note: Class-based device instantiation is a legacy mechanism which
shouldn't be used in new code, so we can rule out that this argument
may be needed again in the future.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Peter Rosin <peda@axentia.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
2024-05-13 16:13:19 +02:00
Sergey Shtylyov
cf7385cb26 of: module: add buffer overflow check in of_modalias()
In of_modalias(), if the buffer happens to be too small even for the 1st
snprintf() call, the len parameter will become negative and str parameter
(if not NULL initially) will point beyond the buffer's end. Add the buffer
overflow check after the 1st snprintf() call and fix such check after the
strlen() call (accounting for the terminating NUL char).

Fixes: bc575064d6 ("of/device: use of_property_for_each_string to parse compatible strings")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Link: https://lore.kernel.org/r/bbfc6be0-c687-62b6-d015-5141b93f313e@omp.ru
Signed-off-by: Rob Herring <robh@kernel.org>
2024-05-08 11:47:07 -05:00
Shresth Prasad
3fe5a2b9e7 of: property: Use scope based cleanup on port_node
Use __free cleanup handler which ensures that the resource is freed when
it goes out of scope, thus removing the need to manually clean it up
using of_node_put.

Suggested-by: Julia Lawall <julia.lawall@inria.fr>
Signed-off-by: Shresth Prasad <shresthprasad7@gmail.com>
Link: https://lore.kernel.org/r/20240428115226.41345-2-shresthprasad7@gmail.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2024-05-03 07:50:04 -05:00
Oreoluwa Babatunde
c56436ef17 of: reserved_mem: Remove the use of phandle from the reserved_mem APIs
The __find_rmem() function is the only place that references the phandle
field of the reserved_mem struct. __find_rmem() is used to match a
device_node object to its corresponding entry in the reserved_mem array
using its phandle value. But, there is already a function called
of_reserved_mem_lookup() which carries out the same action using the
name of the node.

Using the of_reserved_mem_lookup() function is more reliable because
every node is guaranteed to have a name, but not all nodes will have a
phandle.

Nodes are only assigned a phandle if they are explicitly defined in the
DT using "phandle = <phandle_number>", or if they are referenced by
another node in the DT. Hence, If the phandle field is empty, then
__find_rmem() will return a false negative.

Hence, delete the __find_rmem() function and switch to using the
of_reserved_mem_lookup() function to find the corresponding entry of a
device_node in the reserved_mem array. Since the phandle field of the
reserved_mem struct is now unused, delete that as well.

Signed-off-by: Oreoluwa Babatunde <quic_obabatun@quicinc.com>
Link: https://lore.kernel.org/r/20240502192403.3307277-1-quic_obabatun@quicinc.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2024-05-03 07:49:13 -05:00
Arnd Bergmann
46671fd3e3 STM32 Firewall bus for v6.10, round 1
Highlights:
 ---------
 
 Introduce STM32 Firewall framework for STM32MP1x and STM32MP2x
 platforms. STM32MP1x(ETZPC) and STM32MP2x(RIFSC) Firewall controllers
 register to the framework to offer firewall services such as access
 granting.
 
 This series of patches is a new approach on the previous STM32 system
 bus, history is available here:
 https://lore.kernel.org/lkml/20230127164040.1047583/
 
 The need for such framework arises from the fact that there are now
 multiple hardware firewalls implemented across multiple products.
 Drivers are shared between different products, using the same code.
 When it comes to firewalls, the purpose mostly stays the same: Protect
 hardware resources. But the implementation differs, and there are
 multiple types of firewalls: peripheral, memory, ...
 
 Some hardware firewall controllers such as the RIFSC implemented on
 STM32MP2x platforms may require to take ownership of a resource before
 being able to use it, hence the requirement for firewall services to
 take/release the ownership of such resources.
 
 On the other hand, hardware firewall configurations are becoming
 more and more complex. These mecanisms prevent platform crashes
 or other firewall-related incoveniences by denying access to some
 resources.
 
 The stm32 firewall framework offers an API that is defined in
 firewall controllers drivers to best fit the specificity of each
 firewall.
 
 For every peripherals protected by either the ETZPC or the RIFSC, the
 firewall framework checks the firewall controlelr registers to see if
 the peripheral's access is granted to the Linux kernel. If not, the
 peripheral is configured as secure, the node is marked populated,
 so that the driver is not probed for that device.
 
 The firewall framework relies on the access-controller device tree
 binding. It is used by peripherals to reference a domain access
 controller. In this case a firewall controller. The bus uses the ID
 referenced by the access-controller property to know where to look
 in the firewall to get the security configuration for the peripheral.
 This allows a device tree description rather than a hardcoded peripheral
 table in the bus driver.
 
 The STM32 ETZPC device is responsible for filtering accesses based on
 security level, or co-processor isolation for any resource connected
 to it.
 
 The RIFSC is responsible for filtering accesses based on Compartment
 ID / security level / privilege level for any resource connected to
 it.
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Merge tag 'stm32-bus-firewall-for-v6.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/atorgue/stm32 into soc/drivers

STM32 Firewall bus for v6.10, round 1

Highlights:
---------

Introduce STM32 Firewall framework for STM32MP1x and STM32MP2x
platforms. STM32MP1x(ETZPC) and STM32MP2x(RIFSC) Firewall controllers
register to the framework to offer firewall services such as access
granting.

This series of patches is a new approach on the previous STM32 system
bus, history is available here:
https://lore.kernel.org/lkml/20230127164040.1047583/

The need for such framework arises from the fact that there are now
multiple hardware firewalls implemented across multiple products.
Drivers are shared between different products, using the same code.
When it comes to firewalls, the purpose mostly stays the same: Protect
hardware resources. But the implementation differs, and there are
multiple types of firewalls: peripheral, memory, ...

Some hardware firewall controllers such as the RIFSC implemented on
STM32MP2x platforms may require to take ownership of a resource before
being able to use it, hence the requirement for firewall services to
take/release the ownership of such resources.

On the other hand, hardware firewall configurations are becoming
more and more complex. These mecanisms prevent platform crashes
or other firewall-related incoveniences by denying access to some
resources.

The stm32 firewall framework offers an API that is defined in
firewall controllers drivers to best fit the specificity of each
firewall.

For every peripherals protected by either the ETZPC or the RIFSC, the
firewall framework checks the firewall controlelr registers to see if
the peripheral's access is granted to the Linux kernel. If not, the
peripheral is configured as secure, the node is marked populated,
so that the driver is not probed for that device.

The firewall framework relies on the access-controller device tree
binding. It is used by peripherals to reference a domain access
controller. In this case a firewall controller. The bus uses the ID
referenced by the access-controller property to know where to look
in the firewall to get the security configuration for the peripheral.
This allows a device tree description rather than a hardcoded peripheral
table in the bus driver.

The STM32 ETZPC device is responsible for filtering accesses based on
security level, or co-processor isolation for any resource connected
to it.

The RIFSC is responsible for filtering accesses based on Compartment
ID / security level / privilege level for any resource connected to
it.

* tag 'stm32-bus-firewall-for-v6.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/atorgue/stm32:
  bus: stm32_firewall: fix off by one in stm32_firewall_get_firewall()
  bus: etzpc: introduce ETZPC firewall controller driver
  bus: rifsc: introduce RIFSC firewall controller driver
  of: property: fw_devlink: Add support for "access-controller"
  firewall: introduce stm32_firewall framework
  dt-bindings: bus: document ETZPC
  dt-bindings: bus: document RIFSC
  dt-bindings: treewide: add access-controllers description
  dt-bindings: document generic access controllers

Link: https://lore.kernel.org/r/7dc64226-5429-4ab7-a8c8-6053b12e3cf5@foss.st.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-04-29 22:18:22 +02:00
Robin Murphy
f091e93306 dma-mapping: Simplify arch_setup_dma_ops()
The dma_base, size and iommu arguments are only used by ARM, and can
now easily be deduced from the device itself, so there's no need to pass
them through the callchain as well.

Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Michael Kelley <mhklinux@outlook.com> # For Hyper-V
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Tested-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/5291c2326eab405b1aa7693aa964e8d3cb7193de.1713523152.git.robin.murphy@arm.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2024-04-26 12:07:28 +02:00
Robin Murphy
fece6530bf dma-mapping: Add helpers for dma_range_map bounds
Several places want to compute the lower and/or upper bounds of a
dma_range_map, so let's factor that out into reusable helpers.

Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hanjun Guo <guohanjun@huawei.com> # For arm64
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Tested-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/45ec52f033ec4dfb364e23f48abaf787f612fa53.1713523152.git.robin.murphy@arm.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2024-04-26 12:07:24 +02:00
Robin Murphy
ba503cf41c OF: Simplify DMA range calculations
Juggling start, end, and size values for a range is somewhat redundant
and a little hard to follow. Consolidate down to just using inclusive
start and end, which saves us worrying about size overflows for full
64-bit ranges (note that passing a potentially-overflowed value through
to arch_setup_dma_ops() is benign for all current implementations, and
this is working towards removing that anyway).

Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/3e0a72fe3d79eae660e4284bb32f2cb39868ccd7.1713523152.git.robin.murphy@arm.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2024-04-26 12:07:23 +02:00
Robin Murphy
0c3457926e OF: Retire dma-ranges mask workaround
The fixup adding 1 to the dma-ranges size may have been for the benefit
of some early AMD Seattle DTs, or may have merely been a just-in-case,
but either way anyone who might have deserved to get the message has
hopefully seen the warning in the 9 years we've had it there. The modern
dma_range_map mechanism should happily handle odd-sized ranges with no
ill effect, so there's little need to care anyway now. Clean it up.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/26620039901fdae52079ec1c8a4b2b324964a13e.1713523152.git.robin.murphy@arm.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2024-04-26 12:07:22 +02:00
Gatien Chevallier
161e83f538 of: property: fw_devlink: Add support for "access-controller"
Allows tracking dependencies between devices and their access
controller.

Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
2024-04-24 14:30:35 +02:00
Saravana Kannan
669430b183 of: property: fw_devlink: Add support for "power-supplies" binding
Add support for parsing power-supplies binding so that fw_devlink can
enforce the dependency.

Signed-off-by: Saravana Kannan <saravanak@google.com>
Cc: Sebastian Reichel <sre@kernel.org>
Link: https://lore.kernel.org/r/20240417200738.1370896-1-saravanak@google.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2024-04-23 11:33:10 -05:00
Kory Maincent (Dent Project)
93c0d8c0ac of: property: Add fw_devlink support for pse parent
This allows fw_devlink to create device links between consumers of
a PSE and the supplier of the PSE.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Link: https://lore.kernel.org/r/20240414-feature_poe-v8-2-e4bf1e860da5@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-16 19:17:16 -07:00
Rob Herring
a5737b2105 of: Use scope based of_node_put() cleanups
Use the relatively new scope based of_node_put() cleanup to simplify
function exit handling. Doing so reduces the chances of forgetting an
of_node_put() and simplifies error paths by avoiding the need for goto
statements.

Reviewed-by: Saravana Kannan <saravanak@google.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20240409-dt-cleanup-free-v2-3-5b419a4af38d@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2024-04-15 08:40:40 -05:00
Rob Herring
40b0f17453 of: Use scope based kfree() cleanups
Use the relatively new scope based kfree() cleanup to simplify error
handling. Doing so reduces the chances of memory leaks and simplifies
error paths by avoiding the need for goto statements.

Reviewed-by: Saravana Kannan <saravanak@google.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20240409-dt-cleanup-free-v2-2-5b419a4af38d@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2024-04-15 08:40:40 -05:00
Rob Herring
1c5e3d9bf3 of: Add a helper to free property struct
Freeing a property struct is 3 kfree()'s which is duplicated in multiple
spots. Add a helper, __of_prop_free(), and replace all the open coded
cases in the DT code.

Reviewed-by: Saravana Kannan <saravanak@google.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20240409-dt-cleanup-free-v2-1-5b419a4af38d@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2024-04-15 08:40:40 -05:00
Sergey Shtylyov
a1aa5390cc of: module: prevent NULL pointer dereference in vsnprintf()
In of_modalias(), we can get passed the str and len parameters which would
cause a kernel oops in vsnprintf() since it only allows passing a NULL ptr
when the length is also 0. Also, we need to filter out the negative values
of the len parameter as these will result in a really huge buffer since
snprintf() takes size_t parameter while ours is ssize_t...

Found by Linux Verification Center (linuxtesting.org) with the Svace static
analysis tool.

Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/1d211023-3923-685b-20f0-f3f90ea56e1f@omp.ru
Signed-off-by: Rob Herring <robh@kernel.org>
2024-03-27 17:05:07 -05:00
Herve Codina
8917e73853 of: dynamic: Synchronize of_changeset_destroy() with the devlink removals
In the following sequence:
  1) of_platform_depopulate()
  2) of_overlay_remove()

During the step 1, devices are destroyed and devlinks are removed.
During the step 2, OF nodes are destroyed but
__of_changeset_entry_destroy() can raise warnings related to missing
of_node_put():
  ERROR: memory leak, expected refcount 1 instead of 2 ...

Indeed, during the devlink removals performed at step 1, the removal
itself releasing the device (and the attached of_node) is done by a job
queued in a workqueue and so, it is done asynchronously with respect to
function calls.
When the warning is present, of_node_put() will be called but wrongly
too late from the workqueue job.

In order to be sure that any ongoing devlink removals are done before
the of_node destruction, synchronize the of_changeset_destroy() with the
devlink removals.

Fixes: 80dd33cf72 ("drivers: base: Fix device link removal")
Cc: stable@vger.kernel.org
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Reviewed-by: Saravana Kannan <saravanak@google.com>
Tested-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20240325152140.198219-3-herve.codina@bootlin.com
Signed-off-by: Rob Herring <robh@kernel.org>
2024-03-26 15:32:32 -05:00
Linus Torvalds
241590e5a1 Driver core changes for 6.9-rc1
Here is the "big" set of driver core and kernfs changes for 6.9-rc1.
 
 Nothing all that crazy here, just some good updates that include:
   - automatic attribute group hiding from Dan Williams (he fixed up my
     horrible attempt at doing this.)
   - kobject lock contention fixes from Eric Dumazet
   - driver core cleanups from Andy
   - kernfs rcu work from Tejun
   - fw_devlink changes to resolve some reported issues
   - other minor changes, all details in the shortlog
 
 All of these have been in linux-next for a long time with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core updates from Greg KH:
 "Here is the "big" set of driver core and kernfs changes for 6.9-rc1.

  Nothing all that crazy here, just some good updates that include:

   - automatic attribute group hiding from Dan Williams (he fixed up my
     horrible attempt at doing this.)

   - kobject lock contention fixes from Eric Dumazet

   - driver core cleanups from Andy

   - kernfs rcu work from Tejun

   - fw_devlink changes to resolve some reported issues

   - other minor changes, all details in the shortlog

  All of these have been in linux-next for a long time with no reported
  issues"

* tag 'driver-core-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (28 commits)
  device: core: Log warning for devices pending deferred probe on timeout
  driver: core: Use dev_* instead of pr_* so device metadata is added
  driver: core: Log probe failure as error and with device metadata
  of: property: fw_devlink: Add support for "post-init-providers" property
  driver core: Add FWLINK_FLAG_IGNORE to completely ignore a fwnode link
  driver core: Adds flags param to fwnode_link_add()
  debugfs: fix wait/cancellation handling during remove
  device property: Don't use "proxy" headers
  device property: Move enum dev_dma_attr to fwnode.h
  driver core: Move fw_devlink stuff to where it belongs
  driver core: Drop unneeded 'extern' keyword in fwnode.h
  firmware_loader: Suppress warning on FW_OPT_NO_WARN flag
  sysfs:Addresses documentation in sysfs_merge_group and sysfs_unmerge_group.
  firmware_loader: introduce __free() cleanup hanler
  platform-msi: Remove usage of the deprecated ida_simple_xx() API
  sysfs: Introduce DEFINE_SIMPLE_SYSFS_GROUP_VISIBLE()
  sysfs: Document new "group visible" helpers
  sysfs: Fix crash on empty group attributes array
  sysfs: Introduce a mechanism to hide static attribute_groups
  sysfs: Introduce a mechanism to hide static attribute_groups
  ...
2024-03-21 13:34:15 -07:00
Linus Torvalds
bb41fe35dc Char/Misc and other driver subsystem updates for 6.9-rc1
Here is the big set of char/misc and a number of other driver subsystem
 updates for 6.9-rc1.  Included in here are:
   - IIO driver updates, loads of new ones and evolution of existing ones
   - coresight driver updates
   - const cleanups for many driver subsystems
   - speakup driver additions
   - platform remove callback void cleanups
   - mei driver updates
   - mhi driver updates
   - cdx driver updates for MSI interrupt handling
   - nvmem driver updates
   - other smaller driver updates and cleanups, full details in the
     shortlog
 
 All of these have been in linux-next for a long time with no reported
 issue, other than a build warning with some older versions of gcc for a
 speakup driver, fix for that will come in a few days when I catch up
 with my pending patch queues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc and other driver subsystem updates from Greg KH:
 "Here is the big set of char/misc and a number of other driver
  subsystem updates for 6.9-rc1. Included in here are:

   - IIO driver updates, loads of new ones and evolution of existing ones

   - coresight driver updates

   - const cleanups for many driver subsystems

   - speakup driver additions

   - platform remove callback void cleanups

   - mei driver updates

   - mhi driver updates

   - cdx driver updates for MSI interrupt handling

   - nvmem driver updates

   - other smaller driver updates and cleanups, full details in the
    shortlog

  All of these have been in linux-next for a long time with no reported
  issue, other than a build warning for the speakup driver"

The build warning hits clang and is a gcc (and C23) extension, and is
fixed up in the merge.

Link: https://lore.kernel.org/all/20240321134831.GA2762840@dev-arch.thelio-3990X/

* tag 'char-misc-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (279 commits)
  binder: remove redundant variable page_addr
  uio_dmem_genirq: UIO_MEM_DMA_COHERENT conversion
  uio_pruss: UIO_MEM_DMA_COHERENT conversion
  cnic,bnx2,bnx2x: use UIO_MEM_DMA_COHERENT
  uio: introduce UIO_MEM_DMA_COHERENT type
  cdx: add MSI support for CDX bus
  pps: use cflags-y instead of EXTRA_CFLAGS
  speakup: Add /dev/synthu device
  speakup: Fix 8bit characters from direct synth
  parport: sunbpp: Convert to platform remove callback returning void
  parport: amiga: Convert to platform remove callback returning void
  char: xillybus: Convert to platform remove callback returning void
  vmw_balloon: change maintainership
  MAINTAINERS: change the maintainer for hpilo driver
  char: xilinx_hwicap: Fix NULL vs IS_ERR() bug
  hpet: remove hpets::hp_clocksource
  platform: goldfish: move the separate 'default' propery for CONFIG_GOLDFISH
  char: xilinx_hwicap: drop casting to void in dev_set_drvdata
  greybus: move is_gb_* functions out of greybus.h
  greybus: Remove usage of the deprecated ida_simple_xx() API
  ...
2024-03-21 13:21:31 -07:00
Linus Torvalds
66a27abac3 powerpc updates for 6.9
- Add AT_HWCAP3 and AT_HWCAP4 aux vector entries for future use by glibc.
 
  - Add support for recognising the Power11 architected and raw PVRs.
 
  - Add support for nr_cpus=n on the command line where the boot CPU is >= n.
 
  - Add ppcxx_allmodconfig targets for all 32-bit sub-arches.
 
  - Other small features, cleanups and fixes.
 
 Thanks to: Akanksha J N, Brian King, Christophe Leroy, Dawei Li, Geoff Levand,
 Greg Kroah-Hartman, Jan-Benedict Glaw, Kajol Jain, Kunwu Chan, Li zeming,
 Madhavan Srinivasan, Masahiro Yamada, Nathan Chancellor, Nicholas Piggin, Peter
 Bergner, Qiheng Lin, Randy Dunlap, Ricardo B. Marliere, Rob Herring, Sathvika
 Vasireddy, Shrikanth Hegde, Uwe Kleine-König, Vaibhav Jain, Wen Xiong.
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Merge tag 'powerpc-6.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:

 - Add AT_HWCAP3 and AT_HWCAP4 aux vector entries for future use
   by glibc

 - Add support for recognising the Power11 architected and raw PVRs

 - Add support for nr_cpus=n on the command line where the
   boot CPU is >= n

 - Add ppcxx_allmodconfig targets for all 32-bit sub-arches

 - Other small features, cleanups and fixes

Thanks to Akanksha J N, Brian King, Christophe Leroy, Dawei Li, Geoff
Levand, Greg Kroah-Hartman, Jan-Benedict Glaw, Kajol Jain, Kunwu Chan,
Li zeming, Madhavan Srinivasan, Masahiro Yamada, Nathan Chancellor,
Nicholas Piggin, Peter Bergner, Qiheng Lin, Randy Dunlap, Ricardo B.
Marliere, Rob Herring, Sathvika Vasireddy, Shrikanth Hegde, Uwe
Kleine-König, Vaibhav Jain, and Wen Xiong.

* tag 'powerpc-6.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (71 commits)
  powerpc/macio: Make remove callback of macio driver void returned
  powerpc/83xx: Fix build failure with FPU=n
  powerpc/64s: Fix get_hugepd_cache_index() build failure
  powerpc/4xx: Fix warp_gpio_leds build failure
  powerpc/amigaone: Make several functions static
  powerpc/embedded6xx: Fix no previous prototype for avr_uart_send() etc.
  macintosh/adb: make adb_dev_class constant
  powerpc: xor_vmx: Add '-mhard-float' to CFLAGS
  powerpc/fsl: Fix mfpmr() asm constraint error
  powerpc: Remove cpu-as-y completely
  powerpc/fsl: Modernise mt/mfpmr
  powerpc/fsl: Fix mfpmr build errors with newer binutils
  powerpc/64s: Use .machine power4 around dcbt
  powerpc/64s: Move dcbt/dcbtst sequence into a macro
  powerpc/mm: Code cleanup for __hash_page_thp
  powerpc/hv-gpci: Fix the H_GET_PERF_COUNTER_INFO hcall return value checks
  powerpc/irq: Allow softirq to hardirq stack transition
  powerpc: Stop using of_root
  powerpc/machdep: Define 'compatibles' property in ppc_md and use it
  of: Reimplement of_machine_is_compatible() using of_machine_compatible_match()
  ...
2024-03-15 17:53:48 -07:00
Linus Torvalds
ab522e1478 Devicetree updates for v6.9:
DT core:
 
 - Add cleanup.h based auto release of struct device_node pointers via
   __free marking and new for_each_child_of_node_scoped() iterator to use
   it.
 
 - Always create a base skeleton DT when CONFIG_OF is enabled. This
   supports several usecases of adding DT data on non-DT booted systems.
 
 - Move around some /reserved-memory code in preparation for further
   improvements
 
 - Add a stub for_each_property_of_node() for !OF
 
 - Adjust the printk levels on some messages
 
 - Fix __be32 sparse warning
 
 - Drop RESERVEDMEM_OF_DECLARE usage from Freescale qbman driver
   (currently orphaned)
 
 - Add Saravana Kannan and drop Frank Rowand as DT maintainers
 
 DT bindings:
 
 - Convert Mediatek timer, Mediatek sysirq, fsl,imx6ul-tsc,
   fsl,imx6ul-pinctrl, Atmel AIC, Atmel HLCDC, FPGA region, and
   xlnx,sd-fec to DT schemas
 
 - Add existing, but undocumented fsl,imx-anatop binding
 
 - Add bunch of undocumented vendor prefixes used in compatible strings
 
 - Drop obsolete brcm,bcm2835-pm-wdt binding
 
 - Drop obsolete i2c.txt which as been replaced with schema in dtschema
 
 - Add DPS310 device and sort trivial-devices.yaml
 
 - Enable undocumented compatible checks on DT binding examples
 
 - More QCom maintainer fixes/updates
 
 - Updates to writing-schema.rst and DT submitting-patches.rst to cover
   some frequent review comments
 
 - Clean-up SPDX tags to use 'OR' rather than 'or'
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Merge tag 'devicetree-for-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree updates from Rob Herring:
 "DT core:

   - Add cleanup.h based auto release of struct device_node pointers via
     __free marking and new for_each_child_of_node_scoped() iterator to
     use it.

   - Always create a base skeleton DT when CONFIG_OF is enabled. This
     supports several usecases of adding DT data on non-DT booted
     systems.

   - Move around some /reserved-memory code in preparation for further
     improvements

   - Add a stub for_each_property_of_node() for !OF

   - Adjust the printk levels on some messages

   - Fix __be32 sparse warning

   - Drop RESERVEDMEM_OF_DECLARE usage from Freescale qbman driver
     (currently orphaned)

   - Add Saravana Kannan and drop Frank Rowand as DT maintainers

  DT bindings:

   - Convert Mediatek timer, Mediatek sysirq, fsl,imx6ul-tsc,
     fsl,imx6ul-pinctrl, Atmel AIC, Atmel HLCDC, FPGA region, and
     xlnx,sd-fec to DT schemas

   - Add existing, but undocumented fsl,imx-anatop binding

   - Add bunch of undocumented vendor prefixes used in compatible
     strings

   - Drop obsolete brcm,bcm2835-pm-wdt binding

   - Drop obsolete i2c.txt which as been replaced with schema in
     dtschema

   - Add DPS310 device and sort trivial-devices.yaml

   - Enable undocumented compatible checks on DT binding examples

   - More QCom maintainer fixes/updates

   - Updates to writing-schema.rst and DT submitting-patches.rst to
     cover some frequent review comments

   - Clean-up SPDX tags to use 'OR' rather than 'or'"

* tag 'devicetree-for-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (56 commits)
  dt-bindings: soc: imx: fsl,imx-anatop: add imx6q regulators
  of: unittest: Use for_each_child_of_node_scoped()
  of: Introduce for_each_*_child_of_node_scoped() to automate of_node_put() handling
  of: Add cleanup.h based auto release via __free(device_node) markings
  of: Move all FDT reserved-memory handling into of_reserved_mem.c
  of: Add KUnit test to confirm DTB is loaded
  of: unittest: treat missing of_root as error instead of fixing up
  x86/of: Unconditionally call unflatten_and_copy_device_tree()
  um: Unconditionally call unflatten_device_tree()
  of: Create of_root if no dtb provided by firmware
  of: Always unflatten in unflatten_and_copy_device_tree()
  dt-bindings: timer: mediatek: Convert to json-schema
  dt-bindings: interrupt-controller: fsl,intmux: Include power-domains support
  soc: fsl: qbman: Remove RESERVEDMEM_OF_DECLARE usage
  dt-bindings: fsl-imx-sdma: fix HDMI audio index
  dt-bindings: soc: imx: fsl,imx-iomuxc-gpr: add imx6
  dt-bindings: soc: imx: fsl,imx-anatop: add binding
  dt-bindings: input: touchscreen: fsl,imx6ul-tsc convert to YAML
  dt-bindings: pinctrl: fsl,imx6ul-pinctrl: convert to YAML
  of: make for_each_property_of_node() available to to !OF
  ...
2024-03-15 12:37:59 -07:00
Linus Torvalds
6dff52b828 Not a ton of stuff happening in the clk framework in this pull request. We got
some more devm helpers and we seem to be going in the direction of "just turn
 this stuff on already and leave me alone!" with the addition of a
 devm_clk_bulk_get_all_enable() API. I'm hoping that we can make that into a
 genpd that drivers attach instead, but this API should help drivers simplify in
 the meantime.
 
 Outside of the devm wrappers, we've got the usual clk driver updates that are
 dominated by the major phone SoC vendors (Samsung and Qualcomm) and the
 non-critical driver fixes for things like incorrect topology descriptions and
 wrong registers or bit fields. More details are below, but I'd say that it
 looks pretty ordinary. The only thing that really jumps out at me is the
 Renesas clk driver that's ignoring clks that are assigned to remote processors
 in DeviceTree. That's a new feature that they're using to avoid marking clks as
 CLK_IGNORE_UNUSED based on the configuration of the system.
 
 Core:
  - Increase dev_id len for clkdev lookups
  - Add a devm_clk_bulk_get_all_enable() API to get and enable all clks
    for a device
  - Add a devm variant of clk_rate_exclusive_get()
 
 New Drivers:
  - Display, TCSR, GPU, and Camera clock controllers for Qualcomm's X1 Elite SoC
  - Google GS101 PERIC0 and PERIC1 clock controllers
  - Exynos850 PDMA clocks
  - Exynos850 CPU cluster 0 and 1 (CMU_CPUCLK0/CMU_CPUCLK1) clock controllers
 
 Removed Drivers:
  - Remove the unused Qualcomm sc7180 modem clk driver
 
 Updates:
  - Fix some static checker errors in the Hisilicon clk driver
  - Polarfire MSSPLL hardware has 4 output clocks (the driver supported
    previously only one output); each of these 4 outputs feed dividers and the
    output of each divider feed individual hardware blocks (e.g. CAN, Crypto,
    eMMC); individual hardware block drivers need to control their clocks thus
    clock driver support was added for all MSSPLL output clocks
  - Typo fixes in the Qualcomm IPQ5018 GCC driver
  - Add "qdss_at" clk on Qualcomm IPQ6018, needed for WiFi
  - Properly terminate frequency tables in different Qualcomm clk drivers
  - Add MDSS, crypto, and SDCC resets on Qualcomm MSM8953
  - Add missing UFS CLKREF clks on Qualcomm SC8180X
  - Avoid significant delays during boot by adding a softdep on rpmhpd to
    Qualcomm SDM845 gcc driver
  - Add QUPv3 RCGS w/ DFS and video resets to Qualcomm SM8150 GCC driver
  - Fix the custom GPU GX "do-nothing" method in the Qualcomm GDSC driver
  - Add an external regulator to GX GDSC on Qualcomm SC8280XP GPU clk driver
  - Switch display, GPU, video, and camera Qualcomm clk drivers to
    module_platform_driver()
  - Set a longer delay for Venus resets on many Qualcomm SoCs
  - Correct the GDSC wait times in the Qualcomm SDM845 display clk driver
  - Fix clock listing Oops on Amlogic axg
  - New pll-rate for Rockchip rk3568
  - i2s rate improvements for Rockchip rk3399
  - Rockchip rk3588 syscon clock fixes and removal of overall clock-number from
    the rk3588 binding header
  - A prerequisite for later improvements to the Rockchip rk3588 linked clocks
  - Minor clean-ups and error handling improvements in both composite-8m and SCU
    i.MX clock drivers
  - Fix for SAI_MCLK_SEL definition for i.MX8MP
  - Register the Samsung CMU MISC clock controller earlier, so the Multi Core
    Timer clocksource can use it on Google GS101
  - Propagate Exynos850 SPI IPCLK rate change to parents, so the SPI will get
    proper clock rates
  - Refactor the generic Samsung CPU clock controllers code, preparing it for
    supporting Exynos850 CPU clocks
  - Fix some clk kerneldoc warnings
  - Add Ethernet, SDHI, DMA, and HyperFLASH/QSPI (RPC-IF) clocks on Renesas
    R-Car V4M
  - Ignore all clocks which are assigned to a non-Linux system in the Renesas
    clk driver
  - Add watchdog clock on Renesas RZ/G3S
  - Add camera (CRU) clock and reset on Renesas RZ/G2UL
  - Add support for the Renesas R-Car V4M (R8A779H0) SoC
  - Convert some clk bindings to YAML so they can be validated
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "Not a ton of stuff happening in the clk framework. We got some more
  devm helpers and we seem to be going in the direction of "just turn
  this stuff on already and leave me alone!" with the addition of a
  devm_clk_bulk_get_all_enable() API. I'm hoping that we can make that
  into a pmdomain that drivers attach instead, but this API should help
  drivers simplify in the meantime.

  Outside of the devm wrappers, we've got the usual clk driver updates
  that are dominated by the major phone SoC vendors (Samsung and
  Qualcomm) and the non-critical driver fixes for things like incorrect
  topology descriptions and wrong registers or bit fields. More details
  are below, but I'd say that it looks pretty ordinary. The only thing
  that really jumps out at me is the Renesas clk driver that's ignoring
  clks that are assigned to remote processors in DeviceTree. That's a
  new feature that they're using to avoid marking clks as
  CLK_IGNORE_UNUSED based on the configuration of the system.

  Core:
   - Increase dev_id len for clkdev lookups
   - Add a devm_clk_bulk_get_all_enable() API to get and enable all clks
     for a device
   - Add a devm variant of clk_rate_exclusive_get()

  New Drivers:
   - Display, TCSR, GPU, and Camera clock controllers for Qualcomm's X1
     Elite SoC
   - Google GS101 PERIC0 and PERIC1 clock controllers
   - Exynos850 PDMA clocks
   - Exynos850 CPU cluster 0 and 1 (CMU_CPUCLK0/CMU_CPUCLK1) clock
     controllers

  Removed Drivers:
   - Remove the unused Qualcomm sc7180 modem clk driver

  Updates:
   - Fix some static checker errors in the Hisilicon clk driver
   - Polarfire MSSPLL hardware has 4 output clocks (the driver supported
     previously only one output); each of these 4 outputs feed dividers
     and the output of each divider feed individual hardware blocks
     (e.g. CAN, Crypto, eMMC); individual hardware block drivers need to
     control their clocks thus clock driver support was added for all
     MSSPLL output clocks
   - Typo fixes in the Qualcomm IPQ5018 GCC driver
   - Add "qdss_at" clk on Qualcomm IPQ6018, needed for WiFi
   - Properly terminate frequency tables in different Qualcomm clk
     drivers
   - Add MDSS, crypto, and SDCC resets on Qualcomm MSM8953
   - Add missing UFS CLKREF clks on Qualcomm SC8180X
   - Avoid significant delays during boot by adding a softdep on rpmhpd
     to Qualcomm SDM845 gcc driver
   - Add QUPv3 RCGS w/ DFS and video resets to Qualcomm SM8150 GCC
     driver
   - Fix the custom GPU GX "do-nothing" method in the Qualcomm GDSC
     driver
   - Add an external regulator to GX GDSC on Qualcomm SC8280XP GPU clk
     driver
   - Switch display, GPU, video, and camera Qualcomm clk drivers to
     module_platform_driver()
   - Set a longer delay for Venus resets on many Qualcomm SoCs
   - Correct the GDSC wait times in the Qualcomm SDM845 display clk
     driver
   - Fix clock listing Oops on Amlogic axg
   - New pll-rate for Rockchip rk3568
   - i2s rate improvements for Rockchip rk3399
   - Rockchip rk3588 syscon clock fixes and removal of overall
     clock-number from the rk3588 binding header
   - A prerequisite for later improvements to the Rockchip rk3588 linked
     clocks
   - Minor clean-ups and error handling improvements in both
     composite-8m and SCU i.MX clock drivers
   - Fix for SAI_MCLK_SEL definition for i.MX8MP
   - Register the Samsung CMU MISC clock controller earlier, so the
     Multi Core Timer clocksource can use it on Google GS101
   - Propagate Exynos850 SPI IPCLK rate change to parents, so the SPI
     will get proper clock rates
   - Refactor the generic Samsung CPU clock controllers code, preparing
     it for supporting Exynos850 CPU clocks
   - Fix some clk kerneldoc warnings
   - Add Ethernet, SDHI, DMA, and HyperFLASH/QSPI (RPC-IF) clocks on
     Renesas R-Car V4M
   - Ignore all clocks which are assigned to a non-Linux system in the
     Renesas clk driver
   - Add watchdog clock on Renesas RZ/G3S
   - Add camera (CRU) clock and reset on Renesas RZ/G2UL
   - Add support for the Renesas R-Car V4M (R8A779H0) SoC
   - Convert some clk bindings to YAML so they can be validated"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (150 commits)
  clk: zynq: Prevent null pointer dereference caused by kmalloc failure
  clk: fractional-divider: Use bit operations consistently
  clk: fractional-divider: Move mask calculations out of lock
  clk: Fix clk_core_get NULL dereference
  clk: starfive: jh7110-vout: Convert to platform remove callback returning void
  clk: starfive: jh7110-isp: Convert to platform remove callback returning void
  clk: imx: imx8-acm: Convert to platform remove callback returning void
  clk: qcom: gcc-ipq5018: fix register offset for GCC_UBI0_AXI_ARES reset
  clk: qcom: gcc-ipq5018: fix 'halt_reg' offset of 'gcc_pcie1_pipe_clk'
  clk: qcom: gcc-ipq5018: fix 'enable_reg' offset of 'gcc_gmac0_sys_clk'
  clk: qcom: camcc-x1e80100: Fix missing DT_IFACE enum in x1e80100 camcc
  clk: qcom: mmcc-msm8974: fix terminating of frequency table arrays
  clk: qcom: mmcc-apq8084: fix terminating of frequency table arrays
  clk: qcom: camcc-sc8280xp: fix terminating of frequency table arrays
  clk: qcom: gcc-ipq9574: fix terminating of frequency table arrays
  clk: qcom: gcc-ipq8074: fix terminating of frequency table arrays
  clk: qcom: gcc-ipq6018: fix terminating of frequency table arrays
  clk: qcom: gcc-ipq5018: fix terminating of frequency table arrays
  clk: mediatek: clk-mt8173-apmixedsys: Use common error handling code in clk_mt8173_apmixed_probe()
  clk: Add a devm variant of clk_rate_exclusive_get()
  ...
2024-03-15 11:48:01 -07:00
Linus Torvalds
902861e34c - Sumanth Korikkar has taught s390 to allocate hotplug-time page frames
from hotplugged memory rather than only from main memory.  Series
   "implement "memmap on memory" feature on s390".
 
 - More folio conversions from Matthew Wilcox in the series
 
 	"Convert memcontrol charge moving to use folios"
 	"mm: convert mm counter to take a folio"
 
 - Chengming Zhou has optimized zswap's rbtree locking, providing
   significant reductions in system time and modest but measurable
   reductions in overall runtimes.  The series is "mm/zswap: optimize the
   scalability of zswap rb-tree".
 
 - Chengming Zhou has also provided the series "mm/zswap: optimize zswap
   lru list" which provides measurable runtime benefits in some
   swap-intensive situations.
 
 - And Chengming Zhou further optimizes zswap in the series "mm/zswap:
   optimize for dynamic zswap_pools".  Measured improvements are modest.
 
 - zswap cleanups and simplifications from Yosry Ahmed in the series "mm:
   zswap: simplify zswap_swapoff()".
 
 - In the series "Add DAX ABI for memmap_on_memory", Vishal Verma has
   contributed several DAX cleanups as well as adding a sysfs tunable to
   control the memmap_on_memory setting when the dax device is hotplugged
   as system memory.
 
 - Johannes Weiner has added the large series "mm: zswap: cleanups",
   which does that.
 
 - More DAMON work from SeongJae Park in the series
 
 	"mm/damon: make DAMON debugfs interface deprecation unignorable"
 	"selftests/damon: add more tests for core functionalities and corner cases"
 	"Docs/mm/damon: misc readability improvements"
 	"mm/damon: let DAMOS feeds and tame/auto-tune itself"
 
 - In the series "mm/mempolicy: weighted interleave mempolicy and sysfs
   extension" Rakie Kim has developed a new mempolicy interleaving policy
   wherein we allocate memory across nodes in a weighted fashion rather
   than uniformly.  This is beneficial in heterogeneous memory environments
   appearing with CXL.
 
 - Christophe Leroy has contributed some cleanup and consolidation work
   against the ARM pagetable dumping code in the series "mm: ptdump:
   Refactor CONFIG_DEBUG_WX and check_wx_pages debugfs attribute".
 
 - Luis Chamberlain has added some additional xarray selftesting in the
   series "test_xarray: advanced API multi-index tests".
 
 - Muhammad Usama Anjum has reworked the selftest code to make its
   human-readable output conform to the TAP ("Test Anything Protocol")
   format.  Amongst other things, this opens up the use of third-party
   tools to parse and process out selftesting results.
 
 - Ryan Roberts has added fork()-time PTE batching of THP ptes in the
   series "mm/memory: optimize fork() with PTE-mapped THP".  Mainly
   targeted at arm64, this significantly speeds up fork() when the process
   has a large number of pte-mapped folios.
 
 - David Hildenbrand also gets in on the THP pte batching game in his
   series "mm/memory: optimize unmap/zap with PTE-mapped THP".  It
   implements batching during munmap() and other pte teardown situations.
   The microbenchmark improvements are nice.
 
 - And in the series "Transparent Contiguous PTEs for User Mappings" Ryan
   Roberts further utilizes arm's pte's contiguous bit ("contpte
   mappings").  Kernel build times on arm64 improved nicely.  Ryan's series
   "Address some contpte nits" provides some followup work.
 
 - In the series "mm/hugetlb: Restore the reservation" Breno Leitao has
   fixed an obscure hugetlb race which was causing unnecessary page faults.
   He has also added a reproducer under the selftest code.
 
 - In the series "selftests/mm: Output cleanups for the compaction test",
   Mark Brown did what the title claims.
 
 - Kinsey Ho has added the series "mm/mglru: code cleanup and refactoring".
 
 - Even more zswap material from Nhat Pham.  The series "fix and extend
   zswap kselftests" does as claimed.
 
 - In the series "Introduce cpu_dcache_is_aliasing() to fix DAX
   regression" Mathieu Desnoyers has cleaned up and fixed rather a mess in
   our handling of DAX on archiecctures which have virtually aliasing data
   caches.  The arm architecture is the main beneficiary.
 
 - Lokesh Gidra's series "per-vma locks in userfaultfd" provides dramatic
   improvements in worst-case mmap_lock hold times during certain
   userfaultfd operations.
 
 - Some page_owner enhancements and maintenance work from Oscar Salvador
   in his series
 
 	"page_owner: print stacks and their outstanding allocations"
 	"page_owner: Fixup and cleanup"
 
 - Uladzislau Rezki has contributed some vmalloc scalability improvements
   in his series "Mitigate a vmap lock contention".  It realizes a 12x
   improvement for a certain microbenchmark.
 
 - Some kexec/crash cleanup work from Baoquan He in the series "Split
   crash out from kexec and clean up related config items".
 
 - Some zsmalloc maintenance work from Chengming Zhou in the series
 
 	"mm/zsmalloc: fix and optimize objects/page migration"
 	"mm/zsmalloc: some cleanup for get/set_zspage_mapping()"
 
 - Zi Yan has taught the MM to perform compaction on folios larger than
   order=0.  This a step along the path to implementaton of the merging of
   large anonymous folios.  The series is named "Enable >0 order folio
   memory compaction".
 
 - Christoph Hellwig has done quite a lot of cleanup work in the
   pagecache writeback code in his series "convert write_cache_pages() to
   an iterator".
 
 - Some modest hugetlb cleanups and speedups in Vishal Moola's series
   "Handle hugetlb faults under the VMA lock".
 
 - Zi Yan has changed the page splitting code so we can split huge pages
   into sizes other than order-0 to better utilize large folios.  The
   series is named "Split a folio to any lower order folios".
 
 - David Hildenbrand has contributed the series "mm: remove
   total_mapcount()", a cleanup.
 
 - Matthew Wilcox has sought to improve the performance of bulk memory
   freeing in his series "Rearrange batched folio freeing".
 
 - Gang Li's series "hugetlb: parallelize hugetlb page init on boot"
   provides large improvements in bootup times on large machines which are
   configured to use large numbers of hugetlb pages.
 
 - Matthew Wilcox's series "PageFlags cleanups" does that.
 
 - Qi Zheng's series "minor fixes and supplement for ptdesc" does that
   also.  S390 is affected.
 
 - Cleanups to our pagemap utility functions from Peter Xu in his series
   "mm/treewide: Replace pXd_large() with pXd_leaf()".
 
 - Nico Pache has fixed a few things with our hugepage selftests in his
   series "selftests/mm: Improve Hugepage Test Handling in MM Selftests".
 
 - Also, of course, many singleton patches to many things.  Please see
   the individual changelogs for details.
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Merge tag 'mm-stable-2024-03-13-20-04' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull MM updates from Andrew Morton:

 - Sumanth Korikkar has taught s390 to allocate hotplug-time page frames
   from hotplugged memory rather than only from main memory. Series
   "implement "memmap on memory" feature on s390".

 - More folio conversions from Matthew Wilcox in the series

	"Convert memcontrol charge moving to use folios"
	"mm: convert mm counter to take a folio"

 - Chengming Zhou has optimized zswap's rbtree locking, providing
   significant reductions in system time and modest but measurable
   reductions in overall runtimes. The series is "mm/zswap: optimize the
   scalability of zswap rb-tree".

 - Chengming Zhou has also provided the series "mm/zswap: optimize zswap
   lru list" which provides measurable runtime benefits in some
   swap-intensive situations.

 - And Chengming Zhou further optimizes zswap in the series "mm/zswap:
   optimize for dynamic zswap_pools". Measured improvements are modest.

 - zswap cleanups and simplifications from Yosry Ahmed in the series
   "mm: zswap: simplify zswap_swapoff()".

 - In the series "Add DAX ABI for memmap_on_memory", Vishal Verma has
   contributed several DAX cleanups as well as adding a sysfs tunable to
   control the memmap_on_memory setting when the dax device is
   hotplugged as system memory.

 - Johannes Weiner has added the large series "mm: zswap: cleanups",
   which does that.

 - More DAMON work from SeongJae Park in the series

	"mm/damon: make DAMON debugfs interface deprecation unignorable"
	"selftests/damon: add more tests for core functionalities and corner cases"
	"Docs/mm/damon: misc readability improvements"
	"mm/damon: let DAMOS feeds and tame/auto-tune itself"

 - In the series "mm/mempolicy: weighted interleave mempolicy and sysfs
   extension" Rakie Kim has developed a new mempolicy interleaving
   policy wherein we allocate memory across nodes in a weighted fashion
   rather than uniformly. This is beneficial in heterogeneous memory
   environments appearing with CXL.

 - Christophe Leroy has contributed some cleanup and consolidation work
   against the ARM pagetable dumping code in the series "mm: ptdump:
   Refactor CONFIG_DEBUG_WX and check_wx_pages debugfs attribute".

 - Luis Chamberlain has added some additional xarray selftesting in the
   series "test_xarray: advanced API multi-index tests".

 - Muhammad Usama Anjum has reworked the selftest code to make its
   human-readable output conform to the TAP ("Test Anything Protocol")
   format. Amongst other things, this opens up the use of third-party
   tools to parse and process out selftesting results.

 - Ryan Roberts has added fork()-time PTE batching of THP ptes in the
   series "mm/memory: optimize fork() with PTE-mapped THP". Mainly
   targeted at arm64, this significantly speeds up fork() when the
   process has a large number of pte-mapped folios.

 - David Hildenbrand also gets in on the THP pte batching game in his
   series "mm/memory: optimize unmap/zap with PTE-mapped THP". It
   implements batching during munmap() and other pte teardown
   situations. The microbenchmark improvements are nice.

 - And in the series "Transparent Contiguous PTEs for User Mappings"
   Ryan Roberts further utilizes arm's pte's contiguous bit ("contpte
   mappings"). Kernel build times on arm64 improved nicely. Ryan's
   series "Address some contpte nits" provides some followup work.

 - In the series "mm/hugetlb: Restore the reservation" Breno Leitao has
   fixed an obscure hugetlb race which was causing unnecessary page
   faults. He has also added a reproducer under the selftest code.

 - In the series "selftests/mm: Output cleanups for the compaction
   test", Mark Brown did what the title claims.

 - Kinsey Ho has added the series "mm/mglru: code cleanup and
   refactoring".

 - Even more zswap material from Nhat Pham. The series "fix and extend
   zswap kselftests" does as claimed.

 - In the series "Introduce cpu_dcache_is_aliasing() to fix DAX
   regression" Mathieu Desnoyers has cleaned up and fixed rather a mess
   in our handling of DAX on archiecctures which have virtually aliasing
   data caches. The arm architecture is the main beneficiary.

 - Lokesh Gidra's series "per-vma locks in userfaultfd" provides
   dramatic improvements in worst-case mmap_lock hold times during
   certain userfaultfd operations.

 - Some page_owner enhancements and maintenance work from Oscar Salvador
   in his series

	"page_owner: print stacks and their outstanding allocations"
	"page_owner: Fixup and cleanup"

 - Uladzislau Rezki has contributed some vmalloc scalability
   improvements in his series "Mitigate a vmap lock contention". It
   realizes a 12x improvement for a certain microbenchmark.

 - Some kexec/crash cleanup work from Baoquan He in the series "Split
   crash out from kexec and clean up related config items".

 - Some zsmalloc maintenance work from Chengming Zhou in the series

	"mm/zsmalloc: fix and optimize objects/page migration"
	"mm/zsmalloc: some cleanup for get/set_zspage_mapping()"

 - Zi Yan has taught the MM to perform compaction on folios larger than
   order=0. This a step along the path to implementaton of the merging
   of large anonymous folios. The series is named "Enable >0 order folio
   memory compaction".

 - Christoph Hellwig has done quite a lot of cleanup work in the
   pagecache writeback code in his series "convert write_cache_pages()
   to an iterator".

 - Some modest hugetlb cleanups and speedups in Vishal Moola's series
   "Handle hugetlb faults under the VMA lock".

 - Zi Yan has changed the page splitting code so we can split huge pages
   into sizes other than order-0 to better utilize large folios. The
   series is named "Split a folio to any lower order folios".

 - David Hildenbrand has contributed the series "mm: remove
   total_mapcount()", a cleanup.

 - Matthew Wilcox has sought to improve the performance of bulk memory
   freeing in his series "Rearrange batched folio freeing".

 - Gang Li's series "hugetlb: parallelize hugetlb page init on boot"
   provides large improvements in bootup times on large machines which
   are configured to use large numbers of hugetlb pages.

 - Matthew Wilcox's series "PageFlags cleanups" does that.

 - Qi Zheng's series "minor fixes and supplement for ptdesc" does that
   also. S390 is affected.

 - Cleanups to our pagemap utility functions from Peter Xu in his series
   "mm/treewide: Replace pXd_large() with pXd_leaf()".

 - Nico Pache has fixed a few things with our hugepage selftests in his
   series "selftests/mm: Improve Hugepage Test Handling in MM
   Selftests".

 - Also, of course, many singleton patches to many things. Please see
   the individual changelogs for details.

* tag 'mm-stable-2024-03-13-20-04' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (435 commits)
  mm/zswap: remove the memcpy if acomp is not sleepable
  crypto: introduce: acomp_is_async to expose if comp drivers might sleep
  memtest: use {READ,WRITE}_ONCE in memory scanning
  mm: prohibit the last subpage from reusing the entire large folio
  mm: recover pud_leaf() definitions in nopmd case
  selftests/mm: skip the hugetlb-madvise tests on unmet hugepage requirements
  selftests/mm: skip uffd hugetlb tests with insufficient hugepages
  selftests/mm: dont fail testsuite due to a lack of hugepages
  mm/huge_memory: skip invalid debugfs new_order input for folio split
  mm/huge_memory: check new folio order when split a folio
  mm, vmscan: retry kswapd's priority loop with cache_trim_mode off on failure
  mm: add an explicit smp_wmb() to UFFDIO_CONTINUE
  mm: fix list corruption in put_pages_list
  mm: remove folio from deferred split list before uncharging it
  filemap: avoid unnecessary major faults in filemap_fault()
  mm,page_owner: drop unnecessary check
  mm,page_owner: check for null stack_record before bumping its refcount
  mm: swap: fix race between free_swap_and_cache() and swapoff()
  mm/treewide: align up pXd_leaf() retval across archs
  mm/treewide: drop pXd_large()
  ...
2024-03-14 17:43:30 -07:00
Jonathan Cameron
2056b282ad of: unittest: Use for_each_child_of_node_scoped()
A simple example of the utility of this autocleanup approach to
handling of_node_put().

In this particular case some of the nodes needed for the test are
not available and the _available_ version would cause them to be
skipped resulting in a test failure.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20240225142714.286440-4-jic23@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2024-03-13 16:59:00 -06:00
Rob Herring
54c180e73f of: Move all FDT reserved-memory handling into of_reserved_mem.c
The split of /reserved-memory handling between fdt.c and
of_reserved_mem.c makes for reading and restructuring the code
difficult. As of_reserved_mem.c is only built for
CONFIG_OF_EARLY_FLATTREE already, move all the code to one spot.

Acked-by: Saravana Kannan <saravanak@google.com>
Reviewed-by: Oreoluwa Babatunde <quic_obabatun@quicinc.com>
Link: https://lore.kernel.org/r/20240311181303.1516514-2-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2024-03-12 09:23:26 -06:00
Stephen Boyd
893ecc6d2d of: Add KUnit test to confirm DTB is loaded
Add a KUnit test that confirms a DTB has been loaded, i.e. there is a
root node, and that the of_have_populated_dt() API works properly. We
skip the test when CONFIG_OF_EARLY_FLATREE=n because in that case we
know architecture code hasn't called unflatten_(and_copy_)?device_tree()
which would populate some sort of root node.

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Frank Rowand <frowand.list@gmail.com>
Reviewed-by: David Gow <davidgow@google.com>
Cc: Brendan Higgins <brendan.higgins@linux.dev>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20240217010557.2381548-8-sboyd@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2024-03-08 12:50:39 -06:00
Frank Rowand
d1eabd218e of: unittest: treat missing of_root as error instead of fixing up
unflatten_device_tree() now ensures that the 'of_root' node is populated
with the root of a default empty devicetree. Remove the unittest code
that created 'of_root' if it was missing. Verify that 'of_root' is valid
before attempting to attach the testcase-data subtree. Remove the
unittest code that unflattens the unittest overlay base if architecture
is UML because that is always done now.

Signed-off-by: Frank Rowand <frowand.list@gmail.com>
Link: https://lore.kernel.org/r/20230317053415.2254616-3-frowand.list@gmail.com
Cc: Rob Herring <robh+dt@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20240217010557.2381548-7-sboyd@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2024-03-08 12:50:39 -06:00
Stephen Boyd
221a819aa3 um: Unconditionally call unflatten_device_tree()
Call this function unconditionally so that we can populate an empty DTB
on platforms that don't boot with a command line provided DTB.  There's
no harm in calling unflatten_device_tree() unconditionally. If there
isn't a valid initial_boot_params dtb then unflatten_device_tree()
returns early.

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: linux-um@lists.infradead.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20240217010557.2381548-4-sboyd@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2024-03-08 12:50:39 -06:00
Frank Rowand
7b937cc243 of: Create of_root if no dtb provided by firmware
When enabling CONFIG_OF on a platform where 'of_root' is not populated
by firmware, we end up without a root node. In order to apply overlays
and create subnodes of the root node, we need one. Create this root node
by unflattening an empty builtin dtb.

If firmware provides a flattened device tree (FDT) then the FDT is
unflattened via setup_arch(). Otherwise, the call to
unflatten(_and_copy)?_device_tree() will create an empty root node.

We make of_have_populated_dt() return true only if the DTB was loaded by
firmware so that existing callers don't change behavior after this
patch. The call in the of platform code is removed because it prevents
overlays from creating platform devices when the empty root node is
used.

[sboyd@kernel.org: Update of_have_populated_dt() to treat this empty dtb
as not populated. Drop setup_of() initcall]

Signed-off-by: Frank Rowand <frowand.list@gmail.com>
Link: https://lore.kernel.org/r/20230317053415.2254616-2-frowand.list@gmail.com
Cc: Rob Herring <robh+dt@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20240217010557.2381548-3-sboyd@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2024-03-08 12:50:39 -06:00
Stephen Boyd
dc1460fe1b of: Always unflatten in unflatten_and_copy_device_tree()
We want to populate an empty DT whenever CONFIG_OF is enabled so that
overlays can be applied and the DT unit tests can be run. Make
unflatten_and_copy_device_tree() stop printing a warning if the
'initial_boot_params' pointer is NULL. Instead, simply copy the dtb if
there is one and then unflatten it. If there isn't a DT to copy, then
the call to unflatten_device_tree() is largely a no-op, so nothing
really changes here.

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Frank Rowand <frowand.list@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20240217010557.2381548-2-sboyd@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2024-03-08 12:50:39 -06:00
Saravana Kannan
135116f3d0 of: property: fw_devlink: Add support for "post-init-providers" property
Add support for this property so that dependency cycles can be broken and
fw_devlink can do better probe/suspend/resume ordering between devices in a
dependency cycle.

Signed-off-by: Saravana Kannan <saravanak@google.com>
Acked-by: "Rafael J. Wysocki" <rafael@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20240305050458.1400667-4-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-03-07 22:10:01 +00:00
Saravana Kannan
75cde56a5b driver core: Adds flags param to fwnode_link_add()
Allow the callers to set fwnode link flags when adding fwnode links.

Signed-off-by: Saravana Kannan <saravanak@google.com>
Acked-by: "Rafael J. Wysocki" <rafael@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20240305050458.1400667-2-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-03-07 22:10:01 +00:00