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12,794 commits

Author SHA1 Message Date
Linus Torvalds
91ec203513 Networking changes for 7.3.
Core & protocols
 ----------------
 
  - A few steps lowering rtnl_lock dependence:
    - per-netns netdev unregistration for select SW drivers
      (e.g. veth, ipvlan, tunnels)
    - rtnl_lock-less FIB rule changes (RTM_NEWRULE and RTM_DELRULE)
    - prepare software drivers and TC qdiscs for rtnl_lock-less GET
 
  - Support BIG TCP (>64kB TSO) in UDP tunnels (vxlan, geneve).
 
  - Support buffers larger than PAGE_SIZE in devmem zero-copy API.
 
  - Improve MPTCP handling of extreme memory pressure handling,
    when out-of-order queue had to be pruned.
 
  - Report the per-group user count via RTM_GETMULTICAST.
 
  - Expose the route deletion reason in RTM_DELROUTE.
 
  - Add a SO_RIGHTS_NOTRUNC option to UNIX sockets to enable more useful
    handling of LSM denials when receiving SCM_RIGHTS messages: instead
    of truncating the message at the first blocked fd, keep every fd slot
    and store the LSM errno in the blocked slot.
 
  - IPv6 Segment Routing - support looking up the post-encap SID
    (address) in a different/specified routing table.
 
  - Support PRP RedBox (interlink) creation.
 
  - Support per-nexthop UDP dst port in VXLAN.
 
  - Continue converting getsockopt callbacks in a number of protocols
    to iov_iter.
 
 Ethernet
 --------
 
  - Marge initial CXL support for AMD/Solarflare NICs (shared branch
    with the CXL tree).
 
  - New drivers:
    - ADIN1140 10BASE-T1S MACPHY
    - Initial skeleton of Intel iXD and ZTE Dinghai drivers.
 
  - High-speed NICs:
    - AMD/Pensando:
      - support firmware flashing
    - Cisco (enic):
      - SR-IOV V2 admin channel and MBOX protocol
    - Huawei (hns3):
      - support for ethtool pfc_prevention_tout
    - nVidia/Mellanox:
      - support sharing bandwidth control across interfaces of
        the same device
    - Marvell (octeontx2-pf):
      - link RQ page pools to netdev for Netlink stats
    - Google vNIC:
      - XDP metadata support for DQ RDA
    - Microsoft vNIC:
      - support forcing full-page RX buffers
 
  - Other NICs:
    - Synopsys IP:
      - eic7700: support for eth1
    - Microchip (lan743x):
      - support for RMII interface
    - Wangxun:
      - support for ethtool -G and -C for VFs
      - add Tx timeout and PCIe error handling
    - Intel (igb/igc):
      - RSS key get/set support
      - support for forcing link speed without auto-negotiation
 
  - Switches:
    - NXP (dpaa2):
      - support bonding/LAG offload
    - Mediatek:
      - mt7530: EN7528 support
      - initial support for MT7628
    - Micrel (ksz8/9):
      - refactoring work to move towards library model
      - PTP support for KSZ8463
    - nVidia/Mellanox:
      - support rtnl-lock-less ethtool callbacks
    - Realtek:
      - rtl8366rb: use generic RTL83xx code
      - support SGMII and HSGMII for RTL8367S
 
  - PHYs:
    - Airoha:
      - EcoNet EN7528 PHY support
    - DAPU Telecom
      - DAPU Telecom DAP8211R(I) Gigabit PHY support
    - Realtek:
      - support RTL8261C_CG
      - support RTL8261D
 
 Wireless
 --------
 
  - nl80211: per-link statistics support for multi-link operation
 
  - mac80211: AQL/airtime-fairness support for multicast
 
  - Merge Peripheral Authentication Service (PAS) / TEE support
    for ath12k (shared branch with the firmware/qcom tree).
 
  - New drivers:
    - mm81x for Morse Micro Long-Range S1G devices
    - nxpwifi for NXP devices (mostly forked off from mwifiex)
 
  - Driver changes:
    - Broadcom (brcmfmac):
      - DPP support, some Cypress part update
    - MediaTek (mt76):
      - mt7928 support
      - mt7925 NAN support
      - mt7996 AP powersave improvements
    - Qualcomm (ath12k):
      - much kernel infrastructure integration work
      - AHB platform MultiPD support
    - Realtek (rt89):
      - LED support
      - RTL8922DE support
      - dual-BT coex for RTL8922D
    - Intel:
      - new FW version support
 
 Bluetooth
 ---------
 
  - HCI: add support for Shorter Connection Interval (SCI) feature.
 
  - af_bluetooth: add minimal context analysis annotations.
 
  - Driver changes:
    - Intel:
      - add Bluetooth SAR revision 2 support
      - add vendor_reset PCI sysfs for PLDR
    - Mediatek:
      - add USB IDs for MT7902 and MT7922 devices
    - Realtek:
      - add USB IDs for 8761CU and 8852BE devices
    - NXP:
      - add M.2 Bluetooth device support using pwrseq
 
 Misc
 ----
 
  - DPLL support for manual/numerical oscillator control (NCO)
    (implement in zl3073x).
 
  - MCTP support for MCTP over USB v1.1 (DMTF DSP0283).
 
  - Power-over-Ethernet: support Realtek PSE controllers.
 
  - Remove the IBM EHEA driver.
 
  - Remove tulip/xircom_cb driver.
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
 "One of the 'small improvements all over the place' releases for us.

  It's hard to draw any direct comparisons because summer vacations
  disrupted our patch processing (and presumably - generation) quite a
  bit.

  Quick and dirty count suggests we (Paolo and I) merged a very similar
  number of net (632) and net-next (648) patches. This is not telling
  the full story either because 1/3 to 1/2 of the net-next patches also
  *seem* like AI-driven low priority fixes, cleanups and clarifications.

  We are completely overwhelmed, of course. The glimmer of hope is that
  we secured sufficient LLM budget and access (thank you Meta!) to run
  reviews with multiple frontier models on each patch. This eliminates
  some hallucinations. That said, in terms of review, the LLMs can only
  do so much.

  The sad truth is that our APIs (especially for rare events like PCIe
  errors, timeouts etc) have always been racy, and now LLMs don't let us
  ignore that. I expect our direction for the next release will be to
  tweak the reviews a little bit more, but start shifting focus to
  letting the LLMs take care of the busy work - managing patchwork,
  automating common process complaints, editing commit messages, and
  maybe applying patches which already got "reviewed-by" tags from
  people we trust...

  Core & protocols:

   - A few steps lowering rtnl_lock dependence:
      - per-netns netdev unregistration for select SW drivers (e.g.
        veth, ipvlan, tunnels)
      - rtnl_lock-less FIB rule changes (RTM_NEWRULE and RTM_DELRULE)
      - prepare software drivers and TC qdiscs for rtnl_lock-less GET

   - Support BIG TCP (>64kB TSO) in UDP tunnels (vxlan, geneve)

   - Support buffers larger than PAGE_SIZE in devmem zero-copy API

   - Improve MPTCP handling of extreme memory pressure handling, when
     out-of-order queue had to be pruned

   - Report the per-group user count via RTM_GETMULTICAST

   - Expose the route deletion reason in RTM_DELROUTE

   - Add a SO_RIGHTS_NOTRUNC option to UNIX sockets to enable more
     useful handling of LSM denials when receiving SCM_RIGHTS messages:
     instead of truncating the message at the first blocked fd, keep
     every fd slot and store the LSM errno in the blocked slot

   - IPv6 Segment Routing - support looking up the post-encap SID
     (address) in a different/specified routing table

   - Support PRP RedBox (interlink) creation

   - Support per-nexthop UDP dst port in VXLAN

   - Continue converting getsockopt callbacks in a number of protocols
     to iov_iter

  Ethernet:

   - Merge initial CXL support for AMD/Solarflare NICs (shared branch
     with the CXL tree)

   - New drivers:
      - ADIN1140 10BASE-T1S MACPHY
      - Initial skeleton of Intel iXD and ZTE Dinghai drivers

   - High-speed NICs:
      - AMD/Pensando:
         - support firmware flashing
      - Cisco (enic):
         - SR-IOV V2 admin channel and MBOX protocol
      - Huawei (hns3):
         - support for ethtool pfc_prevention_tout
      - nVidia/Mellanox:
         - support sharing bandwidth control across interfaces
           of the same device
      - Marvell (octeontx2-pf):
         - link RQ page pools to netdev for Netlink stats
      - Google vNIC:
         - XDP metadata support for DQ RDA
      - Microsoft vNIC:
         - support forcing full-page RX buffers

   - Other NICs:
      - Synopsys IP:
         - eic7700: support for eth1
      - Microchip (lan743x):
         - support for RMII interface
      - Wangxun:
         - support for ethtool -G and -C for VFs
         - add Tx timeout and PCIe error handling
      - Intel (igb/igc):
         - RSS key get/set support
         - support for forcing link speed without auto-negotiation

   - Switches:
      - NXP (dpaa2):
         - support bonding/LAG offload
      - Mediatek:
         - mt7530: EN7528 support
         - initial support for MT7628
      - Micrel (ksz8/9):
         - refactoring work to move towards library model
         - PTP support for KSZ8463
      - nVidia/Mellanox:
         - support rtnl-lock-less ethtool callbacks
      - Realtek:
         - rtl8366rb: use generic RTL83xx code
         - support SGMII and HSGMII for RTL8367S

   - PHYs:
      - Airoha:
         - EcoNet EN7528 PHY support
      - DAPU Telecom
         - DAPU Telecom DAP8211R(I) Gigabit PHY support
      - Realtek:
         - support RTL8261C_CG
         - support RTL8261D

  Wireless:

   - nl80211: per-link statistics support for multi-link operation

   - mac80211: AQL/airtime-fairness support for multicast

   - Merge Peripheral Authentication Service (PAS) / TEE support for
     ath12k (shared branch with the firmware/qcom tree)

   - New drivers:
      - mm81x for Morse Micro Long-Range S1G devices
      - nxpwifi for NXP devices (mostly forked off from mwifiex)

   - Driver changes:
      - Broadcom (brcmfmac):
         - DPP support, some Cypress part update
      - MediaTek (mt76):
         - mt7928 support
         - mt7925 NAN support
         - mt7996 AP powersave improvements
      - Qualcomm (ath12k):
         - much kernel infrastructure integration work
         - AHB platform MultiPD support
      - Realtek (rt89):
         - LED support
         - RTL8922DE support
         - dual-BT coex for RTL8922D
      - Intel:
         - new FW version support

  Bluetooth:

   - HCI: add support for Shorter Connection Interval (SCI) feature

   - af_bluetooth: add minimal context analysis annotations

   - Driver changes:
      - Intel:
         - add Bluetooth SAR revision 2 support
         - add vendor_reset PCI sysfs for PLDR
      - Mediatek:
         - add USB IDs for MT7902 and MT7922 devices
      - Realtek:
         - add USB IDs for 8761CU and 8852BE devices
      - NXP:
         - add M.2 Bluetooth device support using pwrseq

  Misc:

   - DPLL support for manual/numerical oscillator control (NCO)
     (implement in zl3073x)

   - MCTP support for MCTP over USB v1.1 (DMTF DSP0283)

   - Power-over-Ethernet: support Realtek PSE controllers

   - Remove the IBM EHEA driver

   - Remove tulip/xircom_cb driver"

* tag 'net-next-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1433 commits)
  net/mlx5e: do not HW-GRO coalesce small frames
  net: openvswitch: fix nf_connlabels leak in ovs_ct_init
  net: add missing ref_tracker_dir_exit() to alloc_netdev_mqs()
  net: openvswitch: fix flow mask use-after-free on flow deletion
  sctp: stop processing a packet once its association is deleted
  dpll: zl3073x: add PTP clock support
  dpll: zl3073x: add channel ToD, phase step and TIE operations
  dpll: zl3073x: scale poll interval proportionally to timeout
  ptp: vmclock: prevent read-only mappings from becoming writable
  ipv4: reject undersized MTUs in ip_do_fragment()
  bonding: initialize err for empty target lists
  net: dsa: initial support for MT7628 embedded switch
  net: dsa: initial MT7628 tagging driver
  net: phy: mediatek: add phy driver for MT7628 built-in Fast Ethernet PHYs
  dt-bindings: net: dsa: add MT7628 ESW
  net: pse-pd: realtek-pse-mcu: add UART transport
  net: pse-pd: realtek-pse-mcu: add I2C transport
  net: pse-pd: add Realtek PSE MCU core
  dt-bindings: net: pse-pd: add bindings for Realtek PSE MCU
  vsock: use sock_error() to consume sk_err after a failed connect
  ...
2026-08-20 08:16:04 -07:00
Linus Torvalds
4994ef0fe0 IOMMU updates for Linux v7.3:
- ARM SMMUv2:
   - Device-tree binding updates for Qualcomm Eliza, Maili, Shikra and
     IPQ9650 SoCs.
   - Add support for Qualcomm SM8450.
   - Numerous fixes for lifetime and ordering issues found by Sashiko in
     the Qualcomm driver.
 
 - ARM SMMUv3:
   - Fix interrupt type in device-tree binding example for NVIDIA CMDQV.
   - Numerous fixes for issues identified by Sashiko in the NVIDIA CMDQV
     driver.
   - Work around TLB erratum T264-SMMU-3 on Tegra264 by repeating the
     invalidation sequence.
   - Add support for HAFT (hardware access flag in table entries) when
     using SVA.
   - Probe for 52-bit addressing with a page size smaller than 64k ('DS')
     but don't do anything with it for now.
   - Minor driver improvements (remove sort_nonatomic(), use
     readl_relaxed_poll_timeout_atomic(), fix IOPF teardown ordering).
 
 - Intel VT-d:
   - Consolidation of complex enablement logic into a clean, priority-based
     state machine.
   - Support for the DMA_REMAP_OPT_OUT flag from the VT-d v5.2
     specification.
   - An update to cache_tag_flush_devtlb_psi() to use full-range constants
     instead of modifying shared variables for CACHE_TAG_NESTING_DEVTLB.
   - A fix for the UCTP context-table slot when copying root entries.
   - Fixes for several pre-existing issues reported by Sashiko.
   - General code cleanup and refinement.
 
 - AMD IOMMU:
   - Add SNP page-mode-0 support, enabling passthrough, v2 DMA page
     tables and host SVA on supporting systems.
   - Fix invalid PPR handling, COMPLETE_PPR responses and guest-mode
     reporting.
   - Improve Southbridge IOAPIC validation and remove the dependency on
     hard-coded device IDs.
   - Fix PCI-device lifetime, debugfs and diagnostic issues.
 
 - IOMMU core and IOMMUFD:
   - Restore serialization of the shared MSI-page list.
   - Fix SVA-handle publication and several IOMMUFD reference and error
     path leaks.
   - Return the expected zero result for invalid generic page-table
     translations.
   - Allocate per-CPU IOVA magazines lazily to reduce memory use on
     large systems.
 
 - PCI ATS:
   - Make VF support checks account for the associated PF and validate
     that VF and PF Smallest Translation Unit settings agree.
 
 - Platform drivers:
   - Fix Qualcomm runtime-PM, probe unwind, fault reporting and page
     table initialization races.
   - Rework Rockchip state handling and fix clock, probe and stale-fault
     handling.
   - Fix smaller issues in the MSM and MediaTek drivers.
 
 - Device-tree bindings:
   - Add new Qualcomm SMMU compatibles, convert the OMAP IOMMU binding
     to YAML, and fix the Tegra264 CMDQV interrupt example.
 
 - Various smaller cleanups, documentation fixes and a Rust IOMMU
   safety/readability improvement.
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Merge tag 'iommu-updates-v7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux

Pull iommu updates from Joerg Roedel:
 "ARM SMMUv2:
   - Device-tree binding updates for Qualcomm Eliza, Maili, Shikra and
     IPQ9650 SoCs
   - Add support for Qualcomm SM8450
   - Numerous fixes for lifetime and ordering issues found by Sashiko in
     the Qualcomm driver

  ARM SMMUv3:
   - Fix interrupt type in device-tree binding example for NVIDIA CMDQV
   - Numerous fixes for issues identified by Sashiko in the NVIDIA CMDQV
     driver
   - Work around TLB erratum T264-SMMU-3 on Tegra264 by repeating the
     invalidation sequence
   - Add support for HAFT (hardware access flag in table entries) when
     using SVA
   - Probe for 52-bit addressing with a page size smaller than 64k
     ('DS') but don't do anything with it for now
   - Minor driver improvements (remove sort_nonatomic(), use
     readl_relaxed_poll_timeout_atomic(), fix IOPF teardown ordering)

  Intel VT-d:
   - Consolidation of complex enablement logic into a clean,
     priority-based state machine
   - Support for the DMA_REMAP_OPT_OUT flag from the VT-d v5.2
     specification
   - An update to cache_tag_flush_devtlb_psi() to use full-range
     constants instead of modifying shared variables for
     CACHE_TAG_NESTING_DEVTLB
   - A fix for the UCTP context-table slot when copying root entries
   - Fixes for several pre-existing issues reported by Sashiko
   - General code cleanup and refinement

  AMD IOMMU:
   - Add SNP page-mode-0 support, enabling passthrough, v2 DMA page
     tables and host SVA on supporting systems
   - Fix invalid PPR handling, COMPLETE_PPR responses and guest-mode
     reporting
   - Improve Southbridge IOAPIC validation and remove the dependency on
     hard-coded device IDs
   - Fix PCI-device lifetime, debugfs and diagnostic issues

  IOMMU core and IOMMUFD:
   - Restore serialization of the shared MSI-page list
   - Fix SVA-handle publication and several IOMMUFD reference and error
     path leaks
   - Return the expected zero result for invalid generic page-table
     translations
   - Allocate per-CPU IOVA magazines lazily to reduce memory use on
     large systems

  PCI ATS:
   - Make VF support checks account for the associated PF and validate
     that VF and PF Smallest Translation Unit settings agree

  Platform drivers:
   - Fix Qualcomm runtime-PM, probe unwind, fault reporting and page
     table initialization races
   - Rework Rockchip state handling and fix clock, probe and stale-fault
     handling
   - Fix smaller issues in the MSM and MediaTek drivers

  Device-tree bindings:
   - Add new Qualcomm SMMU compatibles, convert the OMAP IOMMU binding
     to YAML, and fix the Tegra264 CMDQV interrupt example

  Various smaller cleanups, documentation fixes and a Rust IOMMU
  safety/readability improvement"

* tag 'iommu-updates-v7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux: (93 commits)
  iommu/amd: Add SNP page mode 0 support
  iommu/amd: Fix GN bit setting in COMPLETE_PPR_REQUEST command
  iommu/amd: Rate limit INVALID_PPR_REQUEST error logging
  iommu/amd: Fix missing CMD_COMPLETE_PPR response for invalid PPR requests
  iommu/amd: Introduce PPR_TAG_LAST_PAGE() macro
  iommu/amd: Fix incorrect device ID in invalid PASID error message
  iommu/vt-d: Flush context cache with correct SID when tearing down aliases
  iommu/vt-d: Tear down scalable-mode context on probe failure
  iommu/vt-d: Fix iopf_refcount leak on RID domain replacement
  iommu/vt-d: Clear Present bit before tearing down copied context entry
  iommu/vt-d: Fix copied_tables bitmap leak on error in copy_translation_tables
  iommu/vt-d: Cache max domain ID to avoid redundant calculation
  iommu/vt-d: Support the new DMA_REMAP_OPT_OUT flag bit
  iommu/vt-d: Remove dmar_disabled
  iommu/vt-d: Remove the 'force_on' variable
  iommu/vt-d: Call dmar_can_force_on() for tboot opt-in
  iommu/vt-d: Use dmar_can_force_on() for platform opt-in
  iommu/vt-d: Consolidate dmar policy management and force_on logic
  iommu/vt-d: Remove dead code when CONFIG_INTEL_IOMMU is not set
  iommu/vt-d: Force requesting ACS when tboot is enabled
  ...
2026-08-19 12:38:26 -07:00
Joerg Roedel
3c6a2bac15 Merge branches 'arm/smmu/updates', 'arm/smmu/bindings', 'mediatek', 'qualcomm/msm', 'rockchip', 'ti/omap', 'riscv', 'intel/vt-d', 'amd/amd-vi', 'core' and 'typos' into next 2026-08-11 09:12:19 +02:00
Rafael J. Wysocki
79ba234b39 Merge branch 'acpi-video'
Merge updates related to the ACPI video bus driver for 7.3-rc1:

 - Introduce helper function acpi_dev_is_video_device() and use it in
   the core ACPI device enumeration code, in the ACPI video bus driver,
   in the ACPI support code for I2C, in the PCI VGA driver, and in the
   x86 platform thinkpad_acpi driver (Andy Shevchenko)

 - Add a quirk to use the native backlight on Acer Nitro AN515-46 to the
   ACPI video bus driver (Marcos Paulo Medeiros)

 - Release PCI device reference after lookup in video_detect_portege_r100()
   in the ACPI video bus driver (Yuho Choi)

* acpi-video:
  ACPI: video: Release PCI device reference after lookup
  ACPI: video: force native backlight on Acer Nitro AN515-46
  platform/x86: thinkpad_acpi: Convert to use acpi_dev_is_video_device() helper
  PCI/VGA: Convert to use acpi_dev_is_video_device() helper
  i2c: acpi: Convert to use acpi_dev_is_video_device() helper
  ACPI: video: Convert to use acpi_dev_is_video_device() helper
  ACPI: scan: Convert to use acpi_dev_is_video_device() helper
  ACPI: utils: Introduce acpi_dev_is_video_device() helper
2026-08-10 12:46:29 +02:00
Jakub Kicinski
4fa4977a0d Quite a bunch more work, of note:
- iwlwifi: new FW version support
  - mt76:
    - mt7928 support
    - mt7925 NAN support
    - mt7996 AP powersave improvements
  - rtw89:
    - LED support
    - RTL8922DE support
    - dual-BT coex for RTL8922D
  - ath12k: AHB platform MultiPD support
  - cfg80211: pre-assign cookies for operations
  - mac80211: AQL support for multicast
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Merge tag 'wireless-next-2026-08-06' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next

Johannes Berg says:

====================
Quite a bunch more work, of note:
 - iwlwifi: new FW version support
 - mt76:
   - mt7928 support
   - mt7925 NAN support
   - mt7996 AP powersave improvements
 - rtw89:
   - LED support
   - RTL8922DE support
   - dual-BT coex for RTL8922D
 - ath12k: AHB platform MultiPD support
 - cfg80211: pre-assign cookies for operations
 - mac80211: AQL support for multicast

* tag 'wireless-next-2026-08-06' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (403 commits)
  wifi: nxpwifi: bound uAP association event IEs to the event buffer
  wifi: nxpwifi: detach sync command buffer on interrupted wait
  wifi: brcmfmac: Fix memory leak in brcmf_sdio_read_control()
  wifi: rsi: Fix types to appease CFI
  wifi: mac80211: skip default WMM setup for AP_VLAN links
  wifi: nxpwifi: fix multiple static analysis errors and warnings
  wifi: morsemicro: MM81X should be invisible and selected by its users
  wifi: nxp: NXPWIFI should be invisible and selected by its users
  wifi: cfg80211: stop PMSR before P2P and NAN teardown
  wifi: mac80211: disconnect on CSA to channel 0
  wifi: brcmfmac: fix P2P action frame handling without device vif
  wifi: brcmfmac: Set DMA direction for msgbuf packet IDs
  wifi: brcmfmac: validate msgbuf flowring IDs before use
  wifi: mac80211: fix RCU usage in peer probing
  wifi: mac80211: fix RCU dereference in throughput estimate
  wifi: wilc1000: validate monitor transmit frame headers
  wifi: mac80211: skip unused probe response countdown offsets
  wifi: zd1211rw: reject secondary interfaces to prevent conflicts
  wifi: nl80211: clean up color-change beacon data on errors
  wifi: mac80211: send TWT teardown to peer after setup TX failure
  ...
====================

Link: https://patch.msgid.link/20260806121304.190084-3-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-08-06 12:39:11 -07:00
Johannes Berg
3a006d09a2 rtw-next patches for v7.3
Some random cleanups and fixes on rtlwifi, rtw88 and rtw89. The major
 features added to rtw89 are listed:
 
 rtw89:
 
  - add LED support
 
  - update BT-coexistence mechanism to support dual Bluetooth for RTL8922D
 
  - support WiFi 7 chip RTL8922DE
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Merge tag 'rtw-next-2026-08-02' of https://github.com/pkshih/rtw

Ping-Ke Shih says:
==================
rtw-next patches for v7.3

Some random cleanups and fixes on rtlwifi, rtw88 and rtw89. The major
features added to rtw89 are listed:

rtw89:

 - add LED support

 - update BT-coexistence mechanism to support dual Bluetooth for RTL8922D

 - support WiFi 7 chip RTL8922DE
==================

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-08-02 18:50:03 +02:00
Linus Torvalds
596254ecc5 pci-v7.2-fixes-1
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Merge tag 'pci-v7.2-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci

Pull pci fixes from Bjorn Helgaas:

 - Remove Karthikeyan Mitran from Mobiveil MAINTAINERS PCIe entry since
   email bounces (Manivannan Sadhasivam)

 - Preserve i.MX6Q, i.MX6QP, and i.MX6SX Root Port MSI/MSI-X
   Capabilities when using iMSI-RX to work around hardware defect
   (Soeren Moch)

 - Reorder i.MX6Q/DL PHY power up to fix boot hang regression (Richard
   Zhu)

* tag 'pci-v7.2-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci:
  PCI: imx6: Fix i.MX6Q/DL boot hang caused by improper PHY power sequencing
  PCI: imx6: Keep i.MX6 Root Port MSI/MSI-X Capabilities with iMSI-RX to work around hardware bug
  MAINTAINERS: Drop Karthikeyan Mitran from Mobiveil PCIe entry
2026-07-31 10:11:52 -07:00
Richard Zhu
7678e81498 PCI: imx6: Fix i.MX6Q/DL boot hang caused by improper PHY power sequencing
commit 610fa91d98 ("PCI: imx6: Assert PERST# before enabling regulators")
introduced a boot hang on i.MX6Q/DL variants by reordering
imx_pcie_host_init() to call imx6q_pcie_enable_ref_clk() (which powered up
the PHY) before imx6q_pcie_core_reset() (which powered it back down).

Before 610fa91d98, the sequence was:

  1. imx_pcie_assert_core_reset() - power down PHY (set TEST_PD), set
     REF_CLK_EN
  2. imx_pcie_clk_enable() - power up PHY (clear TEST_PD), set REF_CLK_EN
  3. Link training starts with PHY powered up (TEST_PD cleared)
  4. Link training succeeds

After 610fa91d98, the sequence became:

  1. imx_pcie_clk_enable() - power up PHY (clear TEST_PD), set REF_CLK_EN
  2. imx_pcie_assert_core_reset() - power down PHY (set TEST_PD), set
     REF_CLK_EN
  3. imx_pcie_deassert_core_reset() - does nothing
  4. Link training starts with PHY powered down (TEST_PD set)
  5. Link training fails and boot hangs when PHY register accesses hang

To fix this:

  - Remove TEST_PD PHY power control from imx6q_pcie_enable_ref_clk()
  - Remove REF_CLK_EN control from imx6q_pcie_core_reset()
  - Add TEST_PD PHY power control to imx6qp_pcie_core_reset(), which
    previously relied on imx6q_pcie_enable_ref_clk() to power up the PHY by
    clearing TEST_PD
  - Clear TEST_PD to power on PHY in imx_pcie_deassert_core_reset()

These changes together ensure the correct sequence:

  1. REF_CLK_EN set in clk_enable() (TEST_PD untouched)
  2. TEST_PD set in assert_core_reset() (PHY power off)
  3. TEST_PD cleared in deassert_core_reset() (PHY power on)
  4. Link training starts with proper PHY state

The i.MX6Q/DL PCIe PHY requires approximately 120us between TEST_PD
de-assertion and link training start. Add usleep_range(200, 500) in
imx6q_pcie_core_reset() after clearing TEST_PD to satisfy this requirement.

Add explicit imx_pcie_assert_core_reset() calls in error paths and
host_exit() to ensure no power leak.

Fixes: 610fa91d98 ("PCI: imx6: Assert PERST# before enabling regulators")
Reported-by: Leonardo Costa <leoreis.costa@gmail.com>
Closes: https://lore.kernel.org/lkml/20260629143439.361560-1-leoreis.costa@gmail.com/
Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Tested-by: Leonardo Costa <leonardo.costa@toradex.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20260728035159.2702021-1-hongxing.zhu@oss.nxp.com
2026-07-28 11:37:06 -05:00
Anirudh Srinivasan
888b193464 PCI: Move Spacemit vendor and device IDs to linux/pci_ids.h
Move the vendor and device ID for the existing Spacemit K1 PCIe Root
Complex to include/linux/pci_ids.h. Also add K3's Root Complex device ID
to this header. This is done so that these values can be referenced in
the rtw89 driver to enable 36-bit DMA ability in it for WiFi to function
on the K3 Pico ITX board.

Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Anirudh Srinivasan <asrinivasan@oss.tenstorrent.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260716-rtw89-spacemit-k3-v2-1-392b577ebf75@oss.tenstorrent.com
2026-07-24 10:02:44 +08:00
Rafael J. Wysocki
b0572550d8 Merge back ACPI video bus driver changes for 7.3
Merge the introduction of acpi_dev_is_video_device() along with some
following driver updates related to it (from Andy Shevchenko).

* acpi-video:
  platform/x86: thinkpad_acpi: Convert to use acpi_dev_is_video_device() helper
  PCI/VGA: Convert to use acpi_dev_is_video_device() helper
  i2c: acpi: Convert to use acpi_dev_is_video_device() helper
  ACPI: video: Convert to use acpi_dev_is_video_device() helper
  ACPI: scan: Convert to use acpi_dev_is_video_device() helper
  ACPI: utils: Introduce acpi_dev_is_video_device() helper
2026-07-22 13:18:31 +02:00
Andy Shevchenko
6fc4e1da76 PCI/VGA: Convert to use acpi_dev_is_video_device() helper
Replace open coded variant of acpi_dev_is_video_device() helper.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20260714185915.865396-6-andriy.shevchenko@linux.intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2026-07-21 15:37:50 +02:00
Soeren Moch
b4bee12ebe PCI: imx6: Keep i.MX6 Root Port MSI/MSI-X Capabilities with iMSI-RX to work around hardware bug
On some NXP chipsets, disabling Root Port MSI/MSI-X Capabilities blocks
MSIs originating from Endpoints from reaching the iMSI-RX controller.

To address this hardware bug, commit 3a4e8302e7 ("PCI: imx6: Keep Root
Port MSI capability with iMSI-RX to work around hardware bug") preserves
Root Port MSI and MSI-X Capabilities on i.MX7D, i.MX8MM, and i.MX8MQ
when iMSI-RX is in use.

The same applies to i.MX6Q, i.MX6QP, and i.MX6SX, so preserve Root Port
MSI/MSI-X Capabilities there as well.

Note that preserving these Capabilities means Root Port-originated MSIs
such as AER and PME won't be received due to separate hardware limitations.
Users may need to use workarounds such as passing the 'pcie_pme=nomsi'
command-line parameter.

Fixes: f5cd8a929c ("PCI: dwc: Remove MSI/MSIX capability for Root Port if iMSI-RX is used as MSI controller")
Signed-off-by: Soeren Moch <smoch@web.de>
Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Acked-by: Richard Zhu <hongxing.zhu@nxp.com>
Cc: stable@vger.kernel.org # 7.0+
Link: https://patch.msgid.link/20260717033203.2965045-1-hongxing.zhu@oss.nxp.com
2026-07-17 11:59:41 -05:00
Pranjal Shrivastava
6fd7c5c81a PCI/ATS: Validate STU for VFs in pci_prepare_ats()
While every PCI Function that implements ATS has an independent ATS
Extended Capability structure with a Read/Write Smallest Translation
Unit (STU) field, the kernel manages SR-IOV ATS by requiring the IOMMU
driver to configure the STU on the Physical Function (PF) before any
any Virtual Functions (VFs) are created.

Currently, pci_prepare_ats() bails out early for VFs, assuming that the
PF has already been correctly prepared. However, this creates a potential
mismatch if a VF is subsequently prepared with a different page shift.

Update pci_prepare_ats() to validate that the requested page shift (ps)
matches the STU already configured in the associated PF. This ensures
early detection of incompatible configurations and maintains the kernel's
policy of consistent STU sizing across all functions associated with a
given SMMU.

Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Samiullah Khawaja <skhawaja@google.com>
Reviewed-by: Nicolin Chen <nicolinc@nvidia.com>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Pranjal Shrivastava <praan@google.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2026-07-09 10:11:03 +02:00
Pranjal Shrivastava
4f2cd6091a PCI/ATS: Ensure pci_ats_supported() is PF-aware for VFs
Update pci_ats_supported() to additionally check the associated PF's
status when called on a VF. This ensures that PF-level quirks and
untrusted status are correctly propagated to VFs, providing a robust
support check that aligns with the kernel's PF-centric ATS configuration
model and is immune to the timing of VF-specific fixups.

Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Samiullah Khawaja <skhawaja@google.com>
Reviewed-by: Nicolin Chen <nicolinc@nvidia.com>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Pranjal Shrivastava <praan@google.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2026-07-09 10:11:02 +02:00
Uwe Kleine-König (The Capable Hub)
995832b2ce Replace <linux/mod_devicetable.h> by more specific <linux/device-id/*.h> (c files)
Replace the #include of <linux/mod_devicetable.h> by the more specific
<linux/device-id/*.h> where applicable. For most cases the include
can be dropped completely, only a few drivers need one or two headers
added.

Acked-by: Danilo Krummrich <dakr@kernel.org>
Acked-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://patch.msgid.link/1a3f2007c5c5dcf555c09a4035ce3ae8ef1b6c49.1782808461.git.u.kleine-koenig@baylibre.com
Signed-off-by: Uwe Kleine-König (The Capable Hub) <u.kleine-koenig@baylibre.com>
2026-07-03 07:38:17 +02:00
Linus Torvalds
26ae421f7f pci-v7.2-changes
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Merge tag 'pci-v7.2-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci

Pull pci updates from Bjorn Helgaas:
 "Enumeration:

   - Remove MPS/MRRS Kconfig settings (CONFIG_PCIE_BUS_*) that worked
     around a WiFi device defect; use a quirk or boot-time
     "pci=pcie_bus_tune_*" kernel parameter instead (Bjorn Helgaas)

   - Always lift 2.5GT/s restriction in PCIe failed link retraining to
     avoid clamping a link to 2.5GT/s after hot-plug changes the device
     (Maciej W. Rozycki)

   - Request bus reassignment when not probe-only to fix an enumeration
     regression on Marvell CN106XX and possibly other DT-based systems
     (Ratheesh Kannoth)

   - Fix procfs race between pci_proc_init() and pci_bus_add_device()
     that resulted in 'proc_dir_entry ... already registered' warnings
     and pointer corruption (Krzysztof Wilczyński)

   - Fix sysfs race that causes 'duplicate filename' warnings and boot
     panics by converting PCI resource files to static attributes
     (Krzysztof Wilczyński)

   - Expose sysfs 'resourceN_resize' attributes only on platforms with
     PCI mmap (Krzysztof Wilczyński)

   - Require CAP_SYS_ADMIN to write to sysfs 'resourceN_resize'
     attributes (Krzysztof Wilczyński)

   - Add security_locked_down(LOCKDOWN_PCI_ACCESS) to alpha PCI resource
     mmap path to match the generic path (Krzysztof Wilczyński)

   - Use kstrtobool() to parse the 'rom' attribute input to avoid the
     unexpected behavior of enabling the ROM when writing '0' with no
     trailing newline (Krzysztof Wilczyński)

  Resource management:

   - Improve resource claim logging for debuggability (Ilpo Järvinen)

   - Clean up several uses of const parameters (Ilpo Järvinen)

   - Check option ROM header signatures and lengths before accessing to
     avoid page faults and alignment faults (Guixin Liu)

  ASPM:

   - Don't reconfigure ASPM when entering low-power D-state; only do it
     when returning back to D0 (Carlos Bilbao)

  Power management:

   - During suspend, set power state to 'unknown' for all devices, not
     just those with drivers (Lukas Wunner)

   - Skip restoring Resizable BARs and VF Resizable BARs if device
     doesn't respond to config reads, to avoid invalid array accesses
     (Marco Nenciarini)

   - Add pci_suspend_retains_context() so drivers can tell whether
     devices retain internal state across suspend/resume, since some
     platforms reset devices on suspend; use this in nvme to avoid
     issues on Qcom RCs (Manivannan Sadhasivam)

  Power control:

   - Only to power on/off devices that actually support power control to
     avoid poking at incompatible devices mentioned in DT (Manivannan
     Sadhasivam)

  Virtualization and resets:

   - Log device readiness timeouts as errors, not warnings, because the
     device is likely unusable in this case (Bjorn Helgaas)

   - Wait for device readiness after soft reset (D3hot ->
     D0uninitialized transition), when the device may respond with
     Request Retry Status (RRS) if it needs more time to initialize
     (Bjorn Helgaas)

   - Drop unnecessary retries when restoring BARs because resets should
     now already include all required delays (Lukas Wunner)

   - Avoid FLR for MediaTek MT7925 WiFi, where FLR fails after a VM
     terminates uncleanly (Jose Ignacio Tornos Martinez)

   - Avoid SBR for Qualcomm WCN6855/WCN7850 WiFi, SDX62/SDX65 modems,
     which seem not to support it correctly (Jose Ignacio Tornos
     Martinez)

  Peer-to-peer DMA:

   - Prevent P2PDMA as well as CPU access to non-mappable BARs, e.g.,
     s390 ISM BARs (Matt Evans)

   - Add Intel QAT, DSA, IAA devices to whitelist (Lukas Wunner)

  Endpoint framework:

   - Add endpoint controller APIs for use by function drivers to
     discover auxiliary blocks like DMA engines (Koichiro Den)

   - Remember DesignWare eDMA engine base/size and expose them via the
     EPC aux-resource API (Koichiro Den)

   - Add endpoint embedded doorbell fallback, used if MSI allocation
     fails (Koichiro Den)

   - Validate BAR index and remove dead BAR read in endpoint doorbell
     test (Carlos Bilbao)

   - Unwind MSI/MSI-X vectors if NTB initialization fails part-way
     through (Koichiro Den)

   - Cache sleepable pci_irq_vector() value at ISR setup to avoid
     calling it from hardirq context (Koichiro Den)

   - Call sleepable pci_epc_raise_irq() from a work item instead of
     atomic context, e.g., when setting bits in NTB peer doorbells in
     the ntb_peer_db_set() path (Koichiro Den)

   - Report 0-based vNTB doorbell vector to account for link event 0 and
     historically skipped slot 1 (Koichiro Den)

   - Prevent configfs writes to vNTB db_count and other values that are
     already in use after EPC attach (Koichiro Den)

   - Account for vNTB db_valid reserved slots (link event 0 and
     historically skipped slot 1) so they don't appear as valid
     doorbells (Koichiro Den)

   - Implement vNTB .db_vector_count()/mask() for doorbells so clients
     can use multiple vectors and avoid thundering herds (Koichiro Den)

   - Report 0-based NTB doorbell vector to account for link event 0 and
     historically skipped slot 1 (Koichiro Den)

   - Fix doorbell bitmask and IRQ vector handling to clear only
     specified bits, use the correct vector for non-contiguous Linux IRQ
     numbers, and validate incoming vectors (Koichiro Den)

   - Implement NTB .db_vector_count()/mask() for doorbells so clients
     can use multiple vectors (Koichiro Den)

  Native PCIe controller infrastructure:

   - Add pci_host_common_link_train_delay() for the mandatory delay
     after > 5GT/s Link training completes and use it for cadence HPA,
     j721e, LGA; dwc; aardvark, mediatek-gen3, rzg3s (Hans Zhang)

   - Protect root bus removal with rescan lock in altera, brcmstb,
     cadence, dwc, iproc, mediatek, plda, rockchip to prevent
     use-after-free or crashes when racing with sysfs rescan or hotplug
     (Hans Zhang)

   - Add pci_host_common_parse_ports() for use by any native driver to
     parse Root Port properties (per-Link features like width, speed,
     PHY, power and reset control, etc should be described in Root Port
     stanzas, not the host bridge; currently only reset GPIOs
     implemented) (Sherry Sun)

  New native PCIe controller drivers:

   - Add DT binding and driver for UltraRISC DP1000 PCIe controller
     (Xincheng Zhang, Jia Wang)

  Altera PCIe controller driver:

   - Do not dispose of the parent IRQ mapping, which belongs to the
     parent interrupt controller (Mahesh Vaidya)

   - Fix chained IRQ handler ordering issue and resource leaks on probe
     failure (Mahesh Vaidya)

  AMD MDB PCIe controller driver:

   - Assert PERST# on shutdown so any connected Endpoints are held in
     reset during shutdown (Sai Krishna Musham)

  Amlogic Meson PCIe controller driver:

   - Propagate devm_add_action_or_reset() failure to fix probe error
     path (Shuvam Pandey)

   - Add .remove() callback to deinitialize the host bridge and power
     off the PHY (Shuvam Pandey)

  Broadcom iProc PCIe controller driver:

   - Restore .map_irq() assignment; its removal broke INTx on the iproc
     platform bus driver (Mark Tomlinson)

  Broadcom STB PCIe controller driver:

   - No change, but products using certain WiFi devices may be affected
     by removal of CONFIG_PCIE_BUS_* (see above)

  Freescale i.MX6 PCIe controller driver:

   - Move IMX6SX_GPR12_PCIE_TEST_POWERDOWN handling into the core reset
     functions (Richard Zhu)

   - Assert PERST# before enabling regulators to ensure that even if
     power is enabled, endpoint stays inactive until REFCLK is stable
     (Sherry Sun)

   - Parse reset properties in Root Port nodes (falling back to host
     bridge) to help support Key E connectors and the pwrctrl framework
     (Sherry Sun)

   - Configure i.MX95 REF_USE_PAD before PHY reset (Richard Zhu)

   - Assert i.MX95 ref_clk_en after reference clock stabilizes (Richard
     Zhu)

   - Integrate new pwrctrl API for DTs with Root Port-level power
     supplies (Sherry Sun)

  Intel Gateway PCIe controller driver:

   - Enable clock before PHY init for correct ordering (Florian Eckert)

   - Add .start_link() callback so the driver works again (Florian
     Eckert)

   - Stop overwriting the ATU base address discovered by
     dw_pcie_get_resources() (Florian Eckert)

   - Add DT 'atu' region since this is hardware-specific, and fall back
     to driver default if lacking (Florian Eckert)

  Loongson PCIe controller driver:

   - Ignore downstream devices only on internal bridges to avoid
     Loongson hardware issue (Rong Zhang)

   - Quirk old Loongson-3C6000 bridges that advertise incorrect
     supported link speeds (Ziyao Li)

  Marvell MVEBU PCIe controller driver:

   - Use fixed-width interrupt masks to avoid truncation in 64-bit
     builds (Rosen Penev)

  MediaTek PCIe controller driver:

   - Use FIELD_PREP() to fix incorrect operator precedence in
     PCIE_FTS_NUM_L0 (Li RongQing)

   - Fix IRQ domain leak when port fails to enable (Manivannan
     Sadhasivam)

   - Use actual physical address for MSI message address instead of
     virt_to_phys() (Manivannan Sadhasivam)

   - Add EcoNet EN7528 to DT binding (Caleb James DeLisle)

  MediaTek PCIe Gen3 controller driver:

   - Deassert PCIE_PHY_RSTB so REFCLK is stable for at least 100ms
     (PCIE_T_PVPERL_MS) before deasserting PERST# (Jian Yang)

   - Add .shutdown() to assert PERST# before powering down device (Jian
     Yang)

   - Do full device power down on removal, including asserting PERST#,
     when removing driver (Chen-Yu Tsai)

   - Fix a 'failed to create pwrctrl devices' error message that was
     inadvertently skipped (Chen-Yu Tsai)

  NVIDIA Tegra194 PCIe controller driver:

   - Program the DesignWare PORT_AFR L1 entrance latency based on the
     'aspm-l1-entry-delay-ns' DT property (Manikanta Maddireddy)

  Qualcomm PCIe controller driver:

   - Add Eliza SoC compatible in DT binding (Krishna Chaitanya Chundru)

   - Set max OPP during resume so DBI register accesses don't fail with
     NoC errors (Qiang Yu)

   - Add pci_host_common_d3cold_possible() to determine whether
     downstream devices are already in D3hot and wakeup-enabled devices
     are capable of generating PME from D3cold (Krishna Chaitanya
     Chundru)

   - Add .get_ltssm() callback to get the LTSSM status without DBI,
     since DBI may be inaccessible after PME_Turn_Off (Krishna Chaitanya
     Chundru)

   - Power down PHY via PARF_PHY_CTRL before disabling rails/clocks to
     avoid power leakage (Krishna Chaitanya Chundru)

   - Decide whether suspend should put the link in L2 and power down
     using pci_host_common_d3cold_possible() instead of checking whether
     ASPM L1 is enabled (Krishna Chaitanya Chundru)

   - Add qcom D3cold support to tear down interconnect bandwidth and OPP
     votes (Krishna Chaitanya Chundru)

   - Handle unsupported mixed PERST#/PHY DT configurations, e.g., PHY in
     RP node while PERST# is in the RC node, but warn about the DT issue
     (Qiang Yu)

   - Program T_POWER_ON based on DT 't-power-on-us' property in case
     hardware advertises incorrect values (Krishna Chaitanya Chundru)

   - Disable ASPM L0s for SA8775P (Shawn Guo)

   - Initialize DWC MSI lock for firmware-managed ECAM hosts, which
     don't use the dw_pcie_host_init() path that initializes the lock
     (Yadu M G)

  Renesas RZ/G3S PCIe controller driver:

   - Add RZ/V2N DT support (Lad Prabhakar)

  SOPHGO PCIe controller driver:

   - Add 'dma-coherent' DT property for sg2042-pcie driver (Han Gao)

  Synopsys DesignWare PCIe controller driver:

   - Apply ECRC TLP Digest workaround for all DesignWare cores prior to
     5.10a, not just 4.90a and 5.00a (Manikanta Maddireddy)

   - Use common struct dw_pcie 'mode' rather than duplicating it in
     artpec6, dra7xx, dwc-pcie, and keembay driver structs (Hans Zhang)

   - Use DEFINE_SHOW_ATTRIBUTE for ltssm_status debugfs to reduce
     boilerplate and fix a seq_file memory leak by including a
     .release() callback (Hans Zhang)

   - Fix a signedness bug in fault injection test code (Dan Carpenter)

   - Avoid NULL pointer dereference when tearing down debugfs for
     controller that lacks RAS DES capability (Shuvam Pandey)

  MicroSemi Switchtec management driver:

   - Add Gen6 Device IDs (Ben Reed)

  Miscellaneous:

   - Remove unused gpio.h include from amd-mdb, designware-plat, fu740,
     visconti drivers (Andy Shevchenko)

   - Fix typos in documentation (josh ziegler)

   - Use FIELD_MODIFY() instead of open-coding it (Hans Zhang)"

* tag 'pci-v7.2-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (168 commits)
  PCI/sysfs: Use kstrtobool() to parse the ROM attribute input
  PCI/sysfs: Limit BAR resize attribute scope to platforms with PCI mmap
  PCI/sysfs: Remove pci_create_legacy_files() and pci_sysfs_init()
  PCI/sysfs: Convert legacy I/O and memory attributes to static definitions
  PCI/sysfs: Add __weak pci_legacy_has_sparse() helper
  alpha/PCI: Compute legacy size in pci_mmap_legacy_page_range()
  PCI: Add macros for legacy I/O and memory address space sizes
  PCI/sysfs: Remove pci_{create,remove}_sysfs_dev_files()
  alpha/PCI: Convert resource files to static attributes
  alpha/PCI: Add static PCI resource attribute macros
  alpha/PCI: Remove WARN from __pci_mmap_fits() and __legacy_mmap_fits()
  alpha/PCI: Fix __pci_mmap_fits() overflow for zero-length BARs
  alpha/PCI: Use PCI resource accessor macros
  alpha/PCI: Use BAR index in sysfs attr->private instead of resource pointer
  alpha/PCI: Add security_locked_down() check to pci_mmap_resource()
  PCI/sysfs: Limit pci_sysfs_init() late_initcall compile scope
  PCI/sysfs: Add stubs for pci_{create,remove}_sysfs_dev_files()
  PCI/sysfs: Warn about BAR resize failure in __resource_resize_store()
  PCI/sysfs: Convert PCI resource files to static attributes
  PCI/proc: Fix race between pci_proc_init() and pci_bus_add_device()
  ...
2026-06-24 12:48:43 -07:00
Linus Torvalds
d0bcd488c3 - Revert a change that added a bad iounmap(NULL) call
to the MSI IRQ support code (Yuanhe Shu)
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'irq-msi-2026-06-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull MSI irq fix from Ingo Molnar:

 - Revert a change that added a bad iounmap(NULL) call
   to the MSI IRQ support code (Yuanhe Shu)

* tag 'irq-msi-2026-06-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  Revert "PCI/MSI: Unmap MSI-X region on error"
2026-06-24 12:41:04 -07:00
Bjorn Helgaas
2c2fb7a8aa Merge branch 'pci/misc'
- Fix typos in documentation (josh ziegler)

- Use FIELD_MODIFY() instead of open-coding it (Hans Zhang)

* pci/misc:
  PCI: Use FIELD_MODIFY() instead of open-coding it
  Documentation: PCI: Fix typos
2026-06-23 17:32:24 -05:00
Bjorn Helgaas
e5eb7036ac Merge branch 'pci/controller/misc'
- Remove unused gpio.h include from amd-mdb, designware-plat, fu740,
  visconti drivers (Andy Shevchenko)

* pci/controller/misc:
  PCI: visconti: Drop unused include
  PCI: fu740: Drop unused include
  PCI: designware-plat: Drop unused include
  PCI: amd-mdb: Use the right GPIO header
2026-06-23 17:32:23 -05:00
Bjorn Helgaas
78e531d3e5 Merge branch 'pci/controller/tlp_macros'
- Add common TLP Type macros (MRd/Wr, IORd/Wr, CfgRd/Wr 0, CfgRd/Wr 1, Msg)
  and use them in aspeed, cadence, dwc, mediatek, tegra drivers (Hans
  Zhang)

* pci/controller/tlp_macros:
  PCI: cadence: Use common TLP type macros
  PCI: dwc: Replace ATU type macros with common TLP type macros
  PCI: Add common TLP type macros and convert aspeed/mediatek
2026-06-23 17:32:23 -05:00
Bjorn Helgaas
7c97ee7c49 Merge branch 'pci/controller/rescan_lock'
- Protect root bus removal with rescan lock in altera, brcmstb, cadence,
  dwc, iproc, mediatek, plda, rockchip to prevent use-after-free or crashes
  when racing with sysfs rescan or hotplug (Hans Zhang)

* pci/controller/rescan_lock:
  PCI: rockchip: Protect root bus removal with rescan lock
  PCI: plda: Protect root bus removal with rescan lock
  PCI: mediatek: Protect root bus removal with rescan lock
  PCI: iproc: Protect root bus removal with rescan lock
  PCI: dwc: Protect root bus removal with rescan lock
  PCI: cadence: Protect root bus removal with rescan lock
  PCI: brcmstb: Protect root bus removal with rescan lock
  PCI: altera: Protect root bus removal with rescan lock
2026-06-23 17:32:23 -05:00
Bjorn Helgaas
dd81c6524b Merge branch 'pci/controller/link_train_delay'
- Add pci_host_common_link_train_delay() for the mandatory delay after
  > 5GT/s Link training completes and use it for cadence HPA, j721e, LGA;
  dwc; aardvark, mediatek-gen3, rzg3s (Hans Zhang)

* pci/controller/link_train_delay:
  PCI: rzg3s-host: Use common pci_host_common_link_train_delay() helper
  PCI: mediatek-gen3: Add 100 ms delay after link up
  PCI: aardvark: Add 100 ms delay after link training
  PCI: dwc: Use common pci_host_common_link_train_delay() helper
  PCI: cadence-hpa: Add post-link delay
  PCI: cadence: Add post-link delay for LGA and j721e glue driver
  PCI: Add pci_host_common_link_train_delay() helper

# Conflicts:
#	drivers/pci/controller/pci-host-common.h
2026-06-23 17:32:22 -05:00
Bjorn Helgaas
01b5f1d052 Merge branch 'pci/controller/rcar-host'
- Remove unused LIST_HEAD(res) (Lad Prabhakar)

* pci/controller/rcar-host:
  PCI: rcar-host: Remove unused LIST_HEAD(res)
2026-06-23 17:32:17 -05:00
Bjorn Helgaas
878ec18099 Merge branch 'pci/controller/mvebu'
- Use fixed-width interrupt masks to avoid truncation in 64-bit builds
  (Rosen Penev)

* pci/controller/mvebu:
  PCI: mvebu: Use fixed-width interrupt masks to avoid truncation in 64-bit builds
2026-06-23 17:32:17 -05:00
Bjorn Helgaas
4e38ddba80 Merge branch 'pci/controller/mediatek-gen3'
- Deassert PCIE_PHY_RSTB so REFCLK is stable for at least 100ms
  (PCIE_T_PVPERL_MS) before deasserting PERST# (Jian Yang)

- Add .shutdown() to assert PERST# before powering down device (Jian Yang)

- Do full device power down on removal, including asserting PERST#, when
  removing driver (Chen-Yu Tsai)

- Fix a 'failed to create pwrctrl devices' error message that was
  inadvertently skipped (Chen-Yu Tsai)

* pci/controller/mediatek-gen3:
  PCI: mediatek-gen3: Fix incorrectly skipped pwrctrl error message
  PCI: mediatek-gen3: Do full device power down on removal
  PCI: mediatek-gen3: Add a .shutdown() callback to control PERST# signal
  PCI: mediatek-gen3: Fix PERST# control timing during system startup
2026-06-23 17:32:16 -05:00
Bjorn Helgaas
7b90019012 Merge branch 'pci/controller/mediatek'
- Use FIELD_PREP() to fix incorrect operator precedence in PCIE_FTS_NUM_L0
  (Li RongQing)

- Fix IRQ domain leak when port fails to enable (Manivannan Sadhasivam)

- Use actual physical address for MSI message address instead of
  virt_to_phys() (Manivannan Sadhasivam)

- Add EcoNet EN7528 to DT binding (Caleb James DeLisle)

* pci/controller/mediatek:
  dt-bindings: PCI: mediatek: Add support for EcoNet EN7528
  PCI: mediatek: Use actual physical address instead of virt_to_phys()
  PCI: mediatek: Fix IRQ domain leak when port fails to enable
  PCI: mediatek: Fix operator precedence in PCIE_FTS_NUM_L0 macro
2026-06-23 17:32:16 -05:00
Bjorn Helgaas
a5c8e1ffe9 Merge branch 'pci/controller/loongson'
- Ignore downstream devices only on internal bridges to avoid Loongson
  hardware issue (Rong Zhang)

- Quirk old Loongson-3C6000 bridges that advertise incorrect supported link
  speeds (Ziyao Li)

* pci/controller/loongson:
  PCI: loongson: Override PCIe bridge supported speeds for Loongson-3C6000 series
  PCI: loongson: Do not ignore downstream devices on external bridges
2026-06-23 17:32:16 -05:00
Bjorn Helgaas
d04ef0d3b4 Merge branch 'pci/controller/iproc-bcma'
- Restore .map_irq() assignment that broke INTx on the iproc platform bus
  driver (Mark Tomlinson)

* pci/controller/iproc-bcma:
  PCI: iproc: Restore .map_irq() for the platform bus driver
2026-06-23 17:32:15 -05:00
Bjorn Helgaas
97eee6d776 Merge branch 'pci/controller/dwc-ultrarisc'
- Add UltraRISC DP1000 PCIe controller DT binding and driver (Jia Wang)

* pci/controller/dwc-ultrarisc:
  PCI: ultrarisc: Add UltraRISC DP1000 PCIe Root Complex driver
  dt-bindings: PCI: Add UltraRISC DP1000 PCIe controller
2026-06-23 17:32:15 -05:00
Bjorn Helgaas
81c4ead83e Merge branch 'pci/controller/dwc-tegra194'
- Program the DesignWare PORT_AFR L1 entrance latency based on the
  'aspm-l1-entry-delay-ns' DT property (Manikanta Maddireddy)

* pci/controller/dwc-tegra194:
  PCI: tegra194: Use aspm-l1-entry-delay-ns DT property for L1 entrance latency
2026-06-23 17:32:15 -05:00
Bjorn Helgaas
9cd6b3cae0 Merge branch 'pci/controller/dwc-qcom'
- Set max OPP during resume so DBI register accesses don't fail with NoC
  errors (Qiang Yu)

- Add pci_host_common_d3cold_possible() to determine whether downstream
  devices are already in D3hot and wakeup-enabled devices are capable of
  generating PME from D3cold (Krishna Chaitanya Chundru)

- Add a .get_ltssm() callback to get the LTSSM status without DBI, since
  DBI may be inaccessible after PME_Turn_Off (Krishna Chaitanya Chundru)

- Power down PHY via PARF_PHY_CTRL before disabling rails/clocks to avoid
  power leakage (Krishna Chaitanya Chundru)

- Decide whether suspend should put the link in L2 and power down using
  pci_host_common_d3cold_possible() instead of checking whether ASPM L1 is
  enabled (Krishna Chaitanya Chundru)

- Add qcom D3cold support to tear down interconnect bandwidth and OPP votes
  (Krishna Chaitanya Chundru)

- Handle unsupported mixed PERST#/PHY DT configurations, e.g., PHY in RP
  node while PERST# is in the RC node, but warn about the DT issue (Qiang
  Yu)

- Add pcie_encode_t_power_on() to encode L1SS T_POWER_ON fields (Krishna
  Chaitanya Chundru)

- Add dw_pcie_program_t_power_on() to program T_POWER_ON (Krishna Chaitanya
  Chundru)

- Program qcom T_POWER_ON based on DT 't-power-on-us' property in case
  hardware advertises incorrect values (Krishna Chaitanya Chundru)

- Disable ASPM L0s for SA8775P (Shawn Guo)

- Initialize DWC MSI lock for firmware-managed ECAM hosts, which don't use
  the dw_pcie_host_init() path that initializes the lock (Yadu M G)

* pci/controller/dwc-qcom:
  PCI: qcom: Initialize DWC MSI lock for firmware-managed ECAM hosts
  PCI: qcom: Disable ASPM L0s for SA8775P
  PCI: qcom: Program T_POWER_ON
  PCI: dwc: Add dw_pcie_program_t_power_on() to program T_POWER_ON
  PCI/ASPM: Add pcie_encode_t_power_on() helper to encode L1SS T_POWER_ON fields
  PCI: qcom: Handle mixed PERST#/PHY DT configuration
  PCI: qcom: Add D3cold support
  PCI: dwc: Use common D3cold eligibility helper in suspend path
  PCI: qcom: Power down PHY via PARF_PHY_CTRL before disabling rails/clocks
  PCI: qcom: Add .get_ltssm() callback to query LTSSM status
  PCI: host-common: Add pci_host_common_d3cold_possible() helper
  PCI: qcom: Set max OPP before DBI access during resume

# Conflicts:
#	drivers/pci/controller/pci-host-common.c
2026-06-23 17:32:14 -05:00
Bjorn Helgaas
c08c02e749 Merge branch 'pci/controller/dwc-meson'
- Propagate devm_add_action_or_reset() failure to fix probe error path
  (Shuvam Pandey)

- Add a .remove() callback to deinitialize the host bridge and power off
  the PHY (Shuvam Pandey)

* pci/controller/dwc-meson:
  PCI: meson: Add missing remove callback
  PCI: meson: Propagate devm_add_action_or_reset() failure
2026-06-23 17:32:07 -05:00
Bjorn Helgaas
87edaec536 Merge branch 'pci/controller/dwc-intel-gw'
- Enable clock before PHY init for correct ordering (Florian Eckert)

- Add .start_link() callback so the driver works again (Florian Eckert)

- Stop overwriting the ATU base address discovered by
  dw_pcie_get_resources() (Florian Eckert)

- Add DT 'atu' region since this is hardware-specific, and fall back to
  driver default if lacking (Florian Eckert)

* pci/controller/dwc-intel-gw:
  dt-bindings: PCI: intel,lgm-pcie: Add 'atu' resource
  PCI: intel-gw: Fix ATU base address setup and add optional DT 'atu' region
  PCI: intel-gw: Add .start_link() callback
  PCI: intel-gw: Enable clock before PHY init
  PCI: intel-gw: Move interrupt enable to own function
  PCI: intel-gw: Remove unused PCIE_APP_INTX_OFST definition
2026-06-23 17:32:07 -05:00
Bjorn Helgaas
878f37d6de Merge branch 'pci/controller/dwc-imx6'
- Move IMX6SX_GPR12_PCIE_TEST_POWERDOWN handling into the core reset
  functions (Richard Zhu)

- Add pci_host_common_parse_ports() for use by any native driver to parse
  Root Port properties (currently only reset GPIOs) (Sherry Sun)

- Assert PERST# before enabling regulators to ensure that even if power is
  enabled, endpoint stays inactive until REFCLK is stable (Sherry Sun)

- Parse reset properties in Root Port nodes (falling back to host bridge)
  to help support Key E connectors and the pwrctrl framework (Sherry Sun)

- Configure i.MX95 REF_USE_PAD before PHY reset (Richard Zhu)

- Assert i.MX95 ref_clk_en after reference clock stabilizes (Richard Zhu)

- Integrate new pwrctrl API for DTs with Root Port-level power supplies
  (Sherry Sun)

* pci/controller/dwc-imx6:
  PCI: imx6: Integrate new pwrctrl API
  PCI: imx6: Assert ref_clk_en after reference clock stabilizes on i.MX95
  PCI: imx6: Configure REF_USE_PAD before PHY reset for i.MX95
  PCI: imx6: Parse 'reset-gpios' in Root Port nodes
  PCI: imx6: Assert PERST# before enabling regulators
  PCI: host-generic: Add common helpers for parsing Root Port properties
  dt-bindings: PCI: fsl,imx6q-pcie: Add reset GPIO in Root Port node
  PCI: imx6: Fix IMX6SX_GPR12_PCIE_TEST_POWERDOWN handling
2026-06-23 17:32:06 -05:00
Bjorn Helgaas
1d0f97d5f8 Merge branch 'pci/controller/dwc-amd-mdb'
- Assert PERST# on shutdown so any connected Endpoints are held in reset
  during shutdown (Sai Krishna Musham)

* pci/controller/dwc-amd-mdb:
  PCI: amd-mdb: Assert PERST# on shutdown
2026-06-23 17:32:06 -05:00
Bjorn Helgaas
bcb446d61d Merge branch 'pci/controller/dwc'
- Apply ECRC TLP Digest workaround for all DesignWare cores prior to 5.10a,
  not just 4.90a and 5.00a (Manikanta Maddireddy)

- Use common struct dw_pcie 'mode' rather than duplicating it in artpec6,
  dra7xx, dwc-pcie, and keembay driver structs (Hans Zhang)

- Use DEFINE_SHOW_ATTRIBUTE for ltssm_status debugfs to reduce boilerplate
  and fix a seq_file memory leak by including a .release() callback (Hans
  Zhang)

- Fix a signedness bug in fault injection test code (Dan Carpenter)

- Avoid NULL pointer dereference when tearing down debugfs for controller
  that lacks RAS DES capability (Shuvam Pandey)

* pci/controller/dwc:
  PCI: dwc: Avoid dwc_pcie_rasdes_debugfs_deinit() NULL dereference when no RAS DES capability
  PCI: dwc: Fix signedness bug in fault injection test code
  PCI: dwc: Use DEFINE_SHOW_ATTRIBUTE for ltssm_status debugfs
  PCI: keembay: Use common mode field in struct dw_pcie
  PCI: dwc: Use common mode field in struct dw_pcie
  PCI: artpec6: Use common mode field in struct dw_pcie
  PCI: dra7xx: Use common mode field in struct dw_pcie
  PCI: dwc: Apply ECRC workaround for DesignWare cores prior to 5.10a
2026-06-23 17:32:05 -05:00
Bjorn Helgaas
bf27eed040 Merge branch 'pci/controller/altera'
- Do not dispose of the parent IRQ mapping, which belongs to the parent
  interrupt controller (Mahesh Vaidya)

- Fix chained IRQ handler ordering issue and resource leaks on probe
  failure (Mahesh Vaidya)

* pci/controller/altera:
  PCI: altera: Fix resource leaks on probe failure
  PCI: altera: Do not dispose parent IRQ mapping
2026-06-23 17:32:05 -05:00
Bjorn Helgaas
34de291028 Merge branch 'pci/controller/host-common'
- Request bus reassignment when not probe-only to fix an enumeration
  regression on Marvell CN106XX and possibly other DT-based systems
  (Ratheesh Kannoth)

* pci/controller/host-common:
  PCI: host-common: Request bus reassignment when not probe-only
2026-06-23 17:32:05 -05:00
Bjorn Helgaas
ae385ca812 Merge branch 'pci/endpoint'
- Add endpoint controller APIs for use by function drivers to discover
  auxiliary blocks like DMA engines (Koichiro Den)

- Remember DesignWare eDMA engine base/size and expose them via the EPC
  aux-resource API (Koichiro Den)

- Refactor endpoint doorbell allocation to allow non-MSI doorbells
  (Koichiro Den)

- Add endpoint embedded doorbell fallback, used if MSI allocation fails
  (Koichiro Den)

- Validate BAR index and remove dead BAR read in endpoint doorbell test
  (Carlos Bilbao)

- Unwind MSI/MSI-X vectors if NTB initialization fails part-way through
  (Koichiro Den)

- Cache sleepable pci_irq_vector() value at ISR setup to avoid calling it
  from hardirq context (Koichiro Den)

- Validate doorbell count when configuring NTB and vNTB doorbells
  (Manivannan Sadhasivam)

- Call sleepable pci_epc_raise_irq() from a work item instead of atomic
  context, e.g., when setting bits in NTB peer doorbells in the
  ntb_peer_db_set() path (Koichiro Den)

- Report 0-based vNTB doorbell vector to account for link event 0 and
  historically skipped slot 1 (Koichiro Den)

- Reject unusable vNTB doorbell counts, e.g., if they don't allow space for
  link event 0 and historically skipped slot 1 (Koichiro Den)

- Prevent configfs writes to vNTB db_count and other values that are
  already in use after EPC attach (Koichiro Den)

- Account for vNTB db_valid reserved slots (link event 0 and historically
  skipped slot 1) so they don't appear as valid doorbells (Koichiro Den)

- Implement vNTB .db_vector_count()/mask() for doorbells so clients can use
  multiple vectors and avoid thundering herds (Koichiro Den)

- Report 0-based NTB doorbell vector to account for link event 0 and
  historically skipped slot 1 (Koichiro Den)

- Fix doorbell bitmask and IRQ vector handling to clear only specified
  bits, use the correct vector for non-contiguous Linux IRQ numbers, and
  validate incoming vectors (Koichiro Den)

- Implement NTB .db_vector_count()/mask() for doorbells so clients can use
  multiple vectors (Koichiro Den)

* pci/endpoint:
  NTB: epf: Implement .db_vector_count()/mask() for doorbells
  NTB: epf: Fix doorbell bitmask and IRQ vector handling
  NTB: epf: Report 0-based doorbell vector via ntb_db_event()
  NTB: epf: Make db_valid_mask cover only real doorbell bits
  NTB: epf: Document legacy doorbell slot offset in ntb_epf_peer_db_set()
  PCI: endpoint: pci-epf-vntb: Implement .db_vector_count()/mask() for doorbells
  PCI: endpoint: pci-epf-vntb: Exclude reserved slots from db_valid_mask
  PCI: endpoint: pci-epf-vntb: Guard configfs writes after EPC attach
  PCI: endpoint: pci-epf-vntb: Reject unusable doorbell counts
  PCI: endpoint: pci-epf-vntb: Report 0-based doorbell vector via ntb_db_event()
  PCI: endpoint: pci-epf-vntb: Defer pci_epc_raise_irq() out of atomic context
  PCI: endpoint: pci-epf-vntb: Document legacy MSI doorbell offset
  PCI: endpoint: pci-epf-ntb: Add check to detect 'db_count' value of 0
  PCI: endpoint: pci-epf-vntb: Add check to detect 'db_count' value of 0
  NTB: epf: Avoid calling pci_irq_vector() from hardirq context
  NTB: epf: Fix request_irq() unwind in ntb_epf_init_isr()
  misc: pci_endpoint_test: Remove dead BAR read before doorbell trigger
  misc: pci_endpoint_test: Validate BAR index in doorbell test
  PCI: endpoint: pci-ep-msi: Add embedded doorbell fallback
  PCI: endpoint: pci-epf-test: Reuse pre-exposed doorbell targets
  PCI: endpoint: pci-epf-vntb: Reuse pre-exposed doorbells and IRQ flags
  PCI: endpoint: pci-ep-msi: Refactor doorbell allocation for new backends
  PCI: dwc: ep: Expose integrated eDMA resources via EPC aux-resource API
  PCI: dwc: Record integrated eDMA register window
  PCI: endpoint: Add auxiliary resource query API
2026-06-23 17:32:04 -05:00
Bjorn Helgaas
b598aba915 Merge branch 'pci/switchtec'
- Add Gen6 Device IDs to the switchtec driver (Ben Reed)

* pci/switchtec:
  PCI: switchtec: Add Gen6 Device IDs
2026-06-23 17:32:04 -05:00
Bjorn Helgaas
44105c5d0a Merge branch 'pci/virtualization'
- Avoid FLR for MediaTek MT7925 WiFi, where FLR fails after a VM terminates
  uncleanly (Jose Ignacio Tornos Martinez)

- Avoid SBR for Qualcomm WCN6855/WCN7850 WiFi, SDX62/SDX65 modems, which
  seem not to support it correctly (Jose Ignacio Tornos Martinez)

* pci/virtualization:
  PCI: Avoid SBR for Qualcomm WCN6855/WCN7850 WiFi, SDX62/SDX65 modems
  PCI: Avoid FLR for MediaTek MT7925 WiFi
2026-06-23 17:32:03 -05:00
Bjorn Helgaas
8b3a73b4fe Merge branch 'pci/sysfs'
- Require CAP_SYS_ADMIN to write to sysfs 'resourceN_resize' attributes
  (Krzysztof Wilczyński)

- Convert PCI resource files to static attributes to avoid races that cause
  'duplicate filename' warnings and boot panics (Krzysztof Wilczyński)

- Remove pci_create_sysfs_dev_files() and pci_remove_sysfs_dev_files(),
  which are obsolete after converting to static attributes (Krzysztof
  Wilczyński)

- Add security_locked_down(LOCKDOWN_PCI_ACCESS) to alpha PCI resource mmap
  path to match the generic path (Krzysztof Wilczyński)

- Convert sysfs 'legacy_io' and 'legacy_mem' to static attributes
  (Krzysztof Wilczyński)

- Remove pci_create_legacy_files() and pci_sysfs_init(), which are obsolete
  after converting to static attributes (Krzysztof Wilczyński)

- Expose sysfs 'resourceN_resize' attributes only on platforms with PCI
  mmap (Krzysztof Wilczyński)

- Use kstrtobool() to parse the 'rom' attribute input to avoid the
  unexpected behavior of enabling the ROM when writing '0' with no trailing
  newline (Krzysztof Wilczyński)

* pci/sysfs:
  PCI/sysfs: Use kstrtobool() to parse the ROM attribute input
  PCI/sysfs: Limit BAR resize attribute scope to platforms with PCI mmap
  PCI/sysfs: Remove pci_create_legacy_files() and pci_sysfs_init()
  PCI/sysfs: Convert legacy I/O and memory attributes to static definitions
  PCI/sysfs: Add __weak pci_legacy_has_sparse() helper
  alpha/PCI: Compute legacy size in pci_mmap_legacy_page_range()
  PCI: Add macros for legacy I/O and memory address space sizes
  PCI/sysfs: Remove pci_{create,remove}_sysfs_dev_files()
  alpha/PCI: Convert resource files to static attributes
  alpha/PCI: Add static PCI resource attribute macros
  alpha/PCI: Remove WARN from __pci_mmap_fits() and __legacy_mmap_fits()
  alpha/PCI: Fix __pci_mmap_fits() overflow for zero-length BARs
  alpha/PCI: Use PCI resource accessor macros
  alpha/PCI: Use BAR index in sysfs attr->private instead of resource pointer
  alpha/PCI: Add security_locked_down() check to pci_mmap_resource()
  PCI/sysfs: Limit pci_sysfs_init() late_initcall compile scope
  PCI/sysfs: Add stubs for pci_{create,remove}_sysfs_dev_files()
  PCI/sysfs: Warn about BAR resize failure in __resource_resize_store()
  PCI/sysfs: Convert PCI resource files to static attributes
  PCI/sysfs: Add static PCI resource attribute macros
  PCI/sysfs: Add CAP_SYS_ADMIN check to __resource_resize_store()
  PCI/sysfs: Split pci_llseek_resource() for device and legacy attributes
  PCI/sysfs: Only allow supported resource types in I/O and MMIO helpers
  PCI: Add pci_resource_is_io() and pci_resource_is_mem() helpers
  PCI/sysfs: Use PCI resource accessor macros
2026-06-23 17:32:03 -05:00
Bjorn Helgaas
5523144a4b Merge branch 'pci/rom'
- Check option ROM header signatures and lengths before accessing to avoid
  page faults and alignment faults (Guixin Liu)

* pci/rom:
  PCI: Check ROM header and data structure addr before accessing
  PCI: Introduce named defines for PCI ROM
2026-06-23 17:32:02 -05:00
Bjorn Helgaas
131618da3a Merge branch 'pci/resource'
- Improve resource claim logging for debuggability (Ilpo Järvinen)

- Rename 'added' to 'add_list' for naming consistency (Ilpo Järvinen)

- Consolidate 'add_list' sanity checks (Ilpo Järvinen)

- Clean up several uses of const parameters (Ilpo Järvinen)

- Move pci_resource_alignment() from header to setup-res.c file (Ilpo
  Järvinen)

* pci/resource:
  PCI: Move pci_resource_alignment() to setup-res.c file
  PCI: Convert pci_resource_alignment() input parameters to const
  PCI: Make pci_sriov_resource_alignment() pci_dev const
  powerpc/pseries: Make pseries_get_iov_fw_value() & pnv_iov_get() pci_dev const
  resource: Make resource_alignment() input const resource
  PCI: Remove const removal cast
  PCI: Consolidate add_list (aka realloc_head) empty sanity checks
  PCI: Rename 'added' to 'add_list'
  PCI: Log all resource claims
2026-06-23 17:32:02 -05:00
Bjorn Helgaas
77d94e1436 Merge branch 'pci/reset'
- Log device readiness timeouts as errors, not warnings (Bjorn Helgaas)

- Wait for device readiness after soft reset (D3hot -> D0uninitialized
  transition), when the device may respond with Request Retry Status if it
  needs more time to initialize (Bjorn Helgaas)

- Drop unnecessary retries when restoring BARs (Lukas Wunner)

* pci/reset:
  PCI: Drop unnecessary retries when restoring BARs
  PCI: Wait for device readiness after D3hot -> D0uninitialized transition
  PCI: Log device readiness timeouts as errors
2026-06-23 17:32:02 -05:00
Bjorn Helgaas
e0342e5588 Merge branch 'pci/pwrctrl'
- Don't try to power on/off devices unless we know they actually support
  power control (Manivannan Sadhasivam)

* pci/pwrctrl:
  PCI/pwrctrl: Lock device when calling device_is_bound()
  PCI/pwrctrl: Do not try to power on/off devices that don't need pwrctrl
  PCI/pwrctrl: Move pci_pwrctrl_is_required() earlier in file
2026-06-23 17:32:01 -05:00
Bjorn Helgaas
0e0e66a31b Merge branch 'pci/procfs'
- Fix race between pci_proc_init() and pci_bus_add_device() (Krzysztof
  Wilczyński)

* pci/procfs:
  PCI/proc: Fix race between pci_proc_init() and pci_bus_add_device()
2026-06-23 17:32:01 -05:00
Bjorn Helgaas
3a81c66054 Merge branch 'pci/pm'
- Set power state to 'unknown' for all devices, not just those with
  drivers, during suspend (Lukas Wunner)

- Skip restoring Resizable BARs and VF Resizable BARs if device doesn't
  respond to config reads, to avoid invalid array accesses (Marco
  Nenciarini)

- Add pci_suspend_retains_context() so drivers can tell whether devices may
  be reset while resuming from suspend due to platform issues; use this in
  nvme to avoid issues on Qcom RCs (Manivannan Sadhasivam)

* pci/pm:
  nvme-pci: Use pci_suspend_retains_context() during suspend
  PCI: qcom: Indicate broken L1SS exit during resume from system suspend
  PCI: Indicate context lost if L1SS exit is broken during resume from system suspend
  PCI: Add pci_suspend_retains_context() to check if device state is preserved during suspend
  PCI/IOV: Skip VF Resizable BAR restore on read error
  PCI: Skip Resizable BAR restore on read error
  PCI: Stop setting cached power state to 'unknown' on unbind
2026-06-23 17:32:01 -05:00
Bjorn Helgaas
5ea9159447 Merge branch 'pci/p2pdma'
- Prevent P2PDMA as well as CPU access to non-mappable BARs, e.g., s390 ISM
  BARs (Matt Evans)

- Add Intel QAT, DSA, IAA devices to whitelist (Lukas Wunner)

* pci/p2pdma:
  PCI/P2PDMA: Add Intel QAT, DSA, IAA devices to whitelist
  PCI/P2PDMA: Avoid returning a provider for non_mappable_bars
2026-06-23 17:32:00 -05:00
Bjorn Helgaas
1eaa2b8d4c Merge branch 'pci/enumeration'
- Remove MPS/MRRS Kconfig settings (CONFIG_PCIE_BUS_*) that worked around a
  WiFi device defect (Bjorn Helgaas)

- Always lift 2.5GT/s restriction in PCIe failed link retraining to avoid
  clamping a link to 2.5GT/s after hot-plug changes the device (Maciej W.
  Rozycki)

- Don't bother trying to retrain a 2.5GT/s link at 2.5GT/s since nothing
  would be gained by the retrain (Maciej W. Rozycki)

* pci/enumeration:
  PCI: Bail out early for 2.5GT/s devices in PCIe failed link retraining
  PCI: Use pcie_get_speed_cap() in PCIe failed link retraining
  PCI: Always lift 2.5GT/s restriction in PCIe failed link retraining
  PCI: Remove MPS/MRRS Kconfig settings (CONFIG_PCIE_BUS_*)
2026-06-23 17:32:00 -05:00