History log of /linux/Documentation/ABI/testing/sysfs-bus-pci (Results 1 – 25 of 560)
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# 25768de5 21-Jan-2025 Dmitry Torokhov <dmitry.torokhov@gmail.com>

Merge branch 'next' into for-linus

Prepare input updates for 6.14 merge window.


# 670af65d 20-Jan-2025 Jiri Kosina <jkosina@suse.com>

Merge branch 'for-6.14/constify-bin-attribute' into for-linus

- constification of 'struct bin_attribute' in various HID driver (Thomas Weißschuh)


Revision tags: v6.13, v6.13-rc7, v6.13-rc6, v6.13-rc5, v6.13-rc4
# 6d4a0f4e 17-Dec-2024 Dmitry Torokhov <dmitry.torokhov@gmail.com>

Merge tag 'v6.13-rc3' into next

Sync up with the mainline.


# c5fb51b7 03-Jan-2025 Rob Clark <robdclark@chromium.org>

Merge remote-tracking branch 'pm/opp/linux-next' into HEAD

Merge pm/opp tree to get dev_pm_opp_get_bw()

Signed-off-by: Rob Clark <robdclark@chromium.org>


Revision tags: v6.13-rc3
# e7f0a3a6 11-Dec-2024 Rodrigo Vivi <rodrigo.vivi@intel.com>

Merge drm/drm-next into drm-intel-next

Catching up with 6.13-rc2.

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>


Revision tags: v6.13-rc2
# 8f109f28 02-Dec-2024 Rodrigo Vivi <rodrigo.vivi@intel.com>

Merge drm/drm-next into drm-xe-next

A backmerge to get the PMT preparation work for
merging the BMG PMT support.

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>


# 3aba2eba 02-Dec-2024 Maxime Ripard <mripard@kernel.org>

Merge drm/drm-next into drm-misc-next

Kickstart 6.14 cycle.

Signed-off-by: Maxime Ripard <mripard@kernel.org>


# bcfd5f64 02-Dec-2024 Ingo Molnar <mingo@kernel.org>

Merge tag 'v6.13-rc1' into perf/core, to refresh the branch

Signed-off-by: Ingo Molnar <mingo@kernel.org>


# c34e9ab9 05-Dec-2024 Takashi Iwai <tiwai@suse.de>

Merge tag 'asoc-fix-v6.13-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v6.13

A few small fixes for v6.13, all system specific - the biggest t

Merge tag 'asoc-fix-v6.13-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v6.13

A few small fixes for v6.13, all system specific - the biggest thing is
the fix for jack handling over suspend on some Intel laptops.

show more ...


Revision tags: v6.13-rc1
# 1746db26 27-Nov-2024 Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'pci-v6.13-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci

Pull PCI updates from Bjorn Helgaas:
"Enumeration:

- Make pci_stop_dev() and pci_destroy_dev() safe so con

Merge tag 'pci-v6.13-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci

Pull PCI updates from Bjorn Helgaas:
"Enumeration:

- Make pci_stop_dev() and pci_destroy_dev() safe so concurrent
callers can't stop a device multiple times, even as we migrate from
the global pci_rescan_remove_lock to finer-grained locking (Keith
Busch)

- Improve pci_walk_bus() implementation by making it recursive and
moving locking up to avoid need for a 'locked' parameter (Keith
Busch)

- Unexport pci_walk_bus_locked(), which is only used internally by
the PCI core (Keith Busch)

- Detect some Thunderbolt chips that are built-in and hence
'trustworthy' by a heuristic since the 'ExternalFacingPort' and
'usb4-host-interface' ACPI properties are not quite enough (Esther
Shimanovich)

Resource management:

- Use PCI bus addresses (not CPU addresses) in 'ranges' properties
when building dynamic DT nodes so systems where PCI and CPU
addresses differ work correctly (Andrea della Porta)

- Tidy resource sizing and assignment with helpers to reduce
redundancy (Ilpo Järvinen)

- Improve pdev_sort_resources() 'bogus alignment' warning to be more
specific (Ilpo Järvinen)

Driver binding:

- Convert driver .remove_new() callbacks to .remove() again to finish
the conversion from returning 'int' to being 'void' (Sergio
Paracuellos)

- Export pcim_request_all_regions(), a managed interface to request
all BARs (Philipp Stanner)

- Replace pcim_iomap_regions_request_all() with
pcim_request_all_regions(), and pcim_iomap_table()[n] with
pcim_iomap(n), in the following drivers: ahci, crypto qat, crypto
octeontx2, intel_th, iwlwifi, ntb idt, serial rp2, ALSA korg1212
(Philipp Stanner)

- Remove the now unused pcim_iomap_regions_request_all() (Philipp
Stanner)

- Export pcim_iounmap_region(), a managed interface to unmap and
release a PCI BAR (Philipp Stanner)

- Replace pcim_iomap_regions(mask) with pcim_iomap_region(n), and
pcim_iounmap_regions(mask) with pcim_iounmap_region(n), in the
following drivers: fpga dfl-pci, block mtip32xx, gpio-merrifield,
cavium (Philipp Stanner)

Error handling:

- Add sysfs 'reset_subordinate' to reset the entire hierarchy below a
bridge; previously Secondary Bus Reset could only be used when
there was a single device below a bridge (Keith Busch)

- Warn if we reset a running device where the driver didn't register
pci_error_handlers notification callbacks (Keith Busch)

ASPM:

- Disable ASPM L1 before touching L1 PM Substates to follow the spec
closer and avoid a CPU load timeout on some platforms (Ajay
Agarwal)

- Set devices below Intel VMD to D0 before enabling ASPM L1 Substates
as required per spec for all L1 Substates changes (Jian-Hong Pan)

Power management:

- Enable starfive controller runtime PM before probing host bridge
(Mayank Rana)

- Enable runtime power management for host bridges (Krishna chaitanya
chundru)

Power control:

- Use of_platform_device_create() instead of of_platform_populate()
to create pwrctl platform devices so we can control it based on the
child nodes (Manivannan Sadhasivam)

- Create pwrctrl platform devices only if there's a relevant power
supply property (Manivannan Sadhasivam)

- Add device link from the pwrctl supplier to the PCI dev to ensure
pwrctl drivers are probed before the PCI dev driver; this avoids a
race where pwrctl could change device power state while the PCI
driver was active (Manivannan Sadhasivam)

- Find pwrctl device for removal with of_find_device_by_node()
instead of searching all children of the parent (Manivannan
Sadhasivam)

- Rename 'pwrctl' to 'pwrctrl' to match new bandwidth controller
('bwctrl') and hotplug files (Bjorn Helgaas)

Bandwidth control:

- Add read/modify/write locking for Link Control 2, which is used to
manage Link speed (Ilpo Järvinen)

- Extract Link Bandwidth Management Status check into
pcie_lbms_seen(), where it can be shared between the bandwidth
controller and quirks that use it to help retrain failed links
(Ilpo Järvinen)

- Re-add Link Bandwidth notification support with updates to address
the reasons it was previously reverted (Alexandru Gagniuc, Ilpo
Järvinen)

- Add pcie_set_target_speed() and related functionality so drivers
can manage PCIe Link speed based on thermal or other constraints
(Ilpo Järvinen)

- Add a thermal cooling driver to throttle PCIe Links via the
existing thermal management framework (Ilpo Järvinen)

- Add a userspace selftest for the PCIe bandwidth controller (Ilpo
Järvinen)

PCI device hotplug:

- Add hotplug controller driver for Marvell OCTEON multi-function
device where function 0 has a management console interface to
enable/disable and provision various personalities for the other
functions (Shijith Thotton)

- Retain a reference to the pci_bus for the lifetime of a pci_slot to
avoid a use-after-free when the thunderbolt driver resets USB4 host
routers on boot, causing hotplug remove/add of downstream docks or
other devices (Lukas Wunner)

- Remove unused cpcihp struct cpci_hp_controller_ops.hardware_test
(Guilherme Giacomo Simoes)

- Remove unused cpqphp struct ctrl_dbg.ctrl (Christophe JAILLET)

- Use pci_bus_read_dev_vendor_id() instead of hand-coded presence
detection in cpqphp (Ilpo Järvinen)

- Simplify cpqphp enumeration, which is already simple-minded and
doesn't handle devices below hot-added bridges (Ilpo Järvinen)

Virtualization:

- Add ACS quirk for Wangxun FF5xxx NICs, which don't advertise an ACS
capability but do isolate functions as though PCI_ACS_RR and
PCI_ACS_CR were set, so the functions can be in independent IOMMU
groups (Mengyuan Lou)

TLP Processing Hints (TPH):

- Add and document TLP Processing Hints (TPH) support so drivers can
enable and disable TPH and the kernel can save/restore TPH
configuration (Wei Huang)

- Add TPH Steering Tag support so drivers can retrieve Steering Tag
values associated with specific CPUs via an ACPI _DSM to improve
performance by directing DMA writes closer to their consumers (Wei
Huang)

Data Object Exchange (DOE):

- Wait up to 1 second for DOE Busy bit to clear before writing a
request to the mailbox to avoid failures if the mailbox is still
busy from a previous transfer (Gregory Price)

Endpoint framework:

- Skip attempts to allocate from endpoint controller memory window if
the requested size is larger than the window (Damien Le Moal)

- Add and document pci_epc_mem_map() and pci_epc_mem_unmap() to
handle controller-specific size and alignment constraints, and add
test cases to the endpoint test driver (Damien Le Moal)

- Implement dwc pci_epc_ops.align_addr() so pci_epc_mem_map() can
observe DWC-specific alignment requirements (Damien Le Moal)

- Synchronously cancel command handler work in endpoint test before
cleaning up DMA and BARs (Damien Le Moal)

- Respect endpoint page size in dw_pcie_ep_align_addr() (Niklas
Cassel)

- Use dw_pcie_ep_align_addr() in dw_pcie_ep_raise_msi_irq() and
dw_pcie_ep_raise_msix_irq() instead of open coding the equivalent
(Niklas Cassel)

- Avoid NULL dereference if Modem Host Interface Endpoint lacks
'mmio' DT property (Zhongqiu Han)

- Release PCI domain ID of Endpoint controller parent (not controller
itself) and before unregistering the controller, to avoid
use-after-free (Zijun Hu)

- Clear secondary (not primary) EPC in pci_epc_remove_epf() when
removing the secondary controller associated with an NTB (Zijun Hu)

Cadence PCIe controller driver:

- Lower severity of 'phy-names' message (Bartosz Wawrzyniak)

Freescale i.MX6 PCIe controller driver:

- Fix suspend/resume support on i.MX6QDL, which has a hardware
erratum that prevents use of L2 (Stefan Eichenberger)

Intel VMD host bridge driver:

- Add 0xb60b and 0xb06f Device IDs for client SKUs (Nirmal Patel)

MediaTek PCIe Gen3 controller driver:

- Update mediatek-gen3 DT binding to require the exact number of
clocks for each SoC (Fei Shao)

- Add support for DT 'max-link-speed' and 'num-lanes' properties to
restrict the link speed and width (AngeloGioacchino Del Regno)

Microchip PolarFlare PCIe controller driver:

- Add DT and driver support for using either of the two PolarFire
Root Ports (Conor Dooley)

NVIDIA Tegra194 PCIe controller driver:

- Move endpoint controller cleanups that depend on refclk from the
host to the notifier that tells us the host has deasserted PERST#,
when refclk should be valid (Manivannan Sadhasivam)

Qualcomm PCIe controller driver:

- Add qcom SAR2130P DT binding with an additional clock (Dmitry
Baryshkov)

- Enable MSI interrupts if 'global' IRQ is supported, since a
previous commit unintentionally masked them (Manivannan Sadhasivam)

- Move endpoint controller cleanups that depend on refclk from the
host to the notifier that tells us the host has deasserted PERST#,
when refclk should be valid (Manivannan Sadhasivam)

- Add DT binding and driver support for IPQ9574, with Synopsys IP
v5.80a and Qcom IP 1.27.0 (devi priya)

- Move the OPP "operating-points-v2" table from the
qcom,pcie-sm8450.yaml DT binding to qcom,pcie-common.yaml, where it
can be used by other Qcom platforms (Qiang Yu)

- Add 'global' SPI interrupt for events like link-up, link-down to
qcom,pcie-x1e80100 DT binding so we can start enumeration when the
link comes up (Qiang Yu)

- Disable ASPM L0s for qcom,pcie-x1e80100 since the PHY is not tuned
to support this (Qiang Yu)

- Add ops_1_21_0 for SC8280X family SoC, which doesn't use the
'iommu-map' DT property and doesn't need BDF-to-SID translation
(Qiang Yu)

Rockchip PCIe controller driver:

- Define ROCKCHIP_PCIE_AT_SIZE_ALIGN to replace magic 256 endpoint
.align value (Damien Le Moal)

- When unmapping an endpoint window, compute the region index instead
of searching for it, and verify that the address was mapped (Damien
Le Moal)

- When mapping an endpoint window, verify that the address hasn't
been mapped already (Damien Le Moal)

- Implement pci_epc_ops.align_addr() for rockchip-ep (Damien Le Moal)

- Fix MSI IRQ data mapping to observe the alignment constraint, which
fixes intermittent page faults in memcpy_toio() and memcpy_fromio()
(Damien Le Moal)

- Rename rockchip_pcie_parse_ep_dt() to
rockchip_pcie_ep_get_resources() for consistency with similar DT
interfaces (Damien Le Moal)

- Skip the unnecessary link train in rockchip_pcie_ep_probe() and do
it only in the endpoint start operation (Damien Le Moal)

- Implement pci_epc_ops.stop_link() to disable link training and
controller configuration (Damien Le Moal)

- Attempt link training at 5 GT/s when both partners support it
(Damien Le Moal)

- Add a handler for PERST# signal so we can detect host-initiated
resets and start link training after PERST# is deasserted (Damien
Le Moal)

Synopsys DesignWare PCIe controller driver:

- Clear outbound address on unmap so dw_pcie_find_index() won't match
an ATU index that was already unmapped (Damien Le Moal)

- Use of_property_present() instead of of_property_read_bool() when
testing for presence of non-boolean DT properties (Rob Herring)

- Advertise 1MB size if endpoint supports Resizable BARs, which was
inadvertently lost in v6.11 (Niklas Cassel)

TI J721E PCIe driver:

- Add PCIe support for J722S SoC (Siddharth Vadapalli)

- Delay PCIE_T_PVPERL_MS (100 ms), not just PCIE_T_PERST_CLK_US (100
us), before deasserting PERST# to ensure power and refclk are
stable (Siddharth Vadapalli)

TI Keystone PCIe controller driver:

- Set the 'ti,keystone-pcie' mode so v3.65a devices work in Root
Complex mode (Kishon Vijay Abraham I)

- Try to avoid unrecoverable SError for attempts to issue config
transactions when the link is down; this is racy but the best we
can do (Kishon Vijay Abraham I)

Miscellaneous:

- Reorganize kerneldoc parameter names to match order in function
signature (Julia Lawall)

- Fix sysfs reset_method_store() memory leak (Todd Kjos)

- Simplify pci_create_slot() (Ilpo Järvinen)

- Fix incorrect printf format specifiers in pcitest (Luo Yifan)"

* tag 'pci-v6.13-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (127 commits)
PCI: rockchip-ep: Handle PERST# signal in EP mode
PCI: rockchip-ep: Improve link training
PCI: rockship-ep: Implement the pci_epc_ops::stop_link() operation
PCI: rockchip-ep: Refactor endpoint link training enable
PCI: rockchip-ep: Refactor rockchip_pcie_ep_probe() MSI-X hiding
PCI: rockchip-ep: Refactor rockchip_pcie_ep_probe() memory allocations
PCI: rockchip-ep: Rename rockchip_pcie_parse_ep_dt()
PCI: rockchip-ep: Fix MSI IRQ data mapping
PCI: rockchip-ep: Implement the pci_epc_ops::align_addr() operation
PCI: rockchip-ep: Improve rockchip_pcie_ep_map_addr()
PCI: rockchip-ep: Improve rockchip_pcie_ep_unmap_addr()
PCI: rockchip-ep: Use a macro to define EP controller .align feature
PCI: rockchip-ep: Fix address translation unit programming
PCI/pwrctrl: Rename pwrctrl functions and structures
PCI/pwrctrl: Rename pwrctl files to pwrctrl
PCI/pwrctl: Remove pwrctl device without iterating over all children of pwrctl parent
PCI/pwrctl: Ensure that pwrctl drivers are probed before PCI client drivers
PCI/pwrctl: Create pwrctl device only if at least one power supply is present
PCI/pwrctl: Use of_platform_device_create() to create pwrctl devices
tools: PCI: Fix incorrect printf format specifiers
...

show more ...


# d985e2be 25-Nov-2024 Bjorn Helgaas <bhelgaas@google.com>

Merge branch 'pci/reset'

- Add sysfs 'reset_subordinate' to reset hierarchy below bridge (Keith
Busch)

- Warn if we reset a running device where driver didn't register
pci_error_handlers notifi

Merge branch 'pci/reset'

- Add sysfs 'reset_subordinate' to reset hierarchy below bridge (Keith
Busch)

- Warn if we reset a running device where driver didn't register
pci_error_handlers notification callbacks (Keith Busch)

* pci/reset:
PCI: Warn if a running device is unaware of reset
PCI: Add 'reset_subordinate' to reset hierarchy below bridge

show more ...


Revision tags: v6.12, v6.12-rc7, v6.12-rc6, v6.12-rc5
# 2fa04644 26-Oct-2024 Keith Busch <kbusch@kernel.org>

PCI: Add 'reset_subordinate' to reset hierarchy below bridge

The "bus" and "cxl_bus" reset methods reset a device by asserting Secondary
Bus Reset on the bridge leading to the device. These only wo

PCI: Add 'reset_subordinate' to reset hierarchy below bridge

The "bus" and "cxl_bus" reset methods reset a device by asserting Secondary
Bus Reset on the bridge leading to the device. These only work if the
device is the only device below the bridge.

Add a sysfs 'reset_subordinate' attribute on bridges that can assert
Secondary Bus Reset regardless of how many devices are below the bridge.

This resets all the devices below a bridge in a single command, including
the locking and config space save/restore that reset methods normally do.

This may be the only way to reset devices that don't support other reset
methods (ACPI, FLR, PM reset, etc).

Link: https://lore.kernel.org/r/20241025222755.3756162-1-kbusch@meta.com
Signed-off-by: Keith Busch <kbusch@kernel.org>
[bhelgaas: commit log, add capable(CAP_SYS_ADMIN) check]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Reviewed-by: Amey Narkhede <ameynarkhede03@gmail.com>

show more ...


Revision tags: v6.12-rc4
# 77b67945 14-Oct-2024 Namhyung Kim <namhyung@kernel.org>

Merge tag 'v6.12-rc3' into perf-tools-next

To get the fixes in the current perf-tools tree.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>


Revision tags: v6.12-rc3, v6.12-rc2
# 3fd6c590 30-Sep-2024 Jerome Brunet <jbrunet@baylibre.com>

Merge tag 'v6.12-rc1' into clk-meson-next

Linux 6.12-rc1


# a0efa2f3 09-Oct-2024 Johannes Berg <johannes.berg@intel.com>

Merge net-next/main to resolve conflicts

The wireless-next tree was based on something older, and there
are now conflicts between -rc2 and work here. Merge net-next,
which has enough of -rc2 for the

Merge net-next/main to resolve conflicts

The wireless-next tree was based on something older, and there
are now conflicts between -rc2 and work here. Merge net-next,
which has enough of -rc2 for the conflicts to happen, resolving
them in the process.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

show more ...


# b88132ce 04-Oct-2024 Thomas Hellström <thomas.hellstrom@linux.intel.com>

Merge drm/drm-next into drm-xe-next

Backmerging to resolve a conflict with core locally.

Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>


# 2dd0ef5d 30-Sep-2024 Thomas Zimmermann <tzimmermann@suse.de>

Merge drm/drm-next into drm-misc-next

Get drm-misc-next to up v6.12-rc1.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>


# e0568571 30-Sep-2024 Jani Nikula <jani.nikula@intel.com>

Merge drm/drm-next into drm-intel-next

Sync to v6.12-rc1.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>


# f33e46a0 18-Nov-2024 Jiri Kosina <jkosina@suse.com>

Merge branch 'for-6.13/wacom' into for-linus

- Sanitization of BTN_TOOL_RUBBER handling (Jason Gerecke)


Revision tags: v6.12-rc1
# 52c996d3 27-Sep-2024 Arnaldo Carvalho de Melo <acme@redhat.com>

Merge remote-tracking branch 'torvalds/master' into perf-tools

To pick up changes in other trees that may affect perf, such as libbpf
and in general the header files that perf has copies of, so that

Merge remote-tracking branch 'torvalds/master' into perf-tools

To pick up changes in other trees that may affect perf, such as libbpf
and in general the header files that perf has copies of, so that we can
do the sync with the kernel sources.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

show more ...


# c8d430db 06-Oct-2024 Paolo Bonzini <pbonzini@redhat.com>

Merge tag 'kvmarm-fixes-6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm64 fixes for 6.12, take #1

- Fix pKVM error path on init, making sure we do not chang

Merge tag 'kvmarm-fixes-6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm64 fixes for 6.12, take #1

- Fix pKVM error path on init, making sure we do not change critical
system registers as we're about to fail

- Make sure that the host's vector length is at capped by a value
common to all CPUs

- Fix kvm_has_feat*() handling of "negative" features, as the current
code is pretty broken

- Promote Joey to the status of official reviewer, while James steps
down -- hopefully only temporarly

show more ...


# 0c436dfe 02-Oct-2024 Takashi Iwai <tiwai@suse.de>

Merge tag 'asoc-fix-v6.12-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v6.12

A bunch of fixes here that came in during the merge window and t

Merge tag 'asoc-fix-v6.12-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v6.12

A bunch of fixes here that came in during the merge window and the first
week of release, plus some new quirks and device IDs. There's nothing
major here, it's a bit bigger than it might've been due to there being
no fixes sent during the merge window due to your vacation.

show more ...


# 2cd86f02 01-Oct-2024 Maarten Lankhorst <maarten.lankhorst@linux.intel.com>

Merge remote-tracking branch 'drm/drm-fixes' into drm-misc-fixes

Required for a panthor fix that broke when
FOP_UNSIGNED_OFFSET was added in place of FMODE_UNSIGNED_OFFSET.

Signed-off-by: Maarten L

Merge remote-tracking branch 'drm/drm-fixes' into drm-misc-fixes

Required for a panthor fix that broke when
FOP_UNSIGNED_OFFSET was added in place of FMODE_UNSIGNED_OFFSET.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>

show more ...


# 3a39d672 27-Sep-2024 Paolo Abeni <pabeni@redhat.com>

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Cross-merge networking fixes after downstream PR.

No conflicts and no adjacent changes.

Signed-off-by: Paolo Abeni <pabeni@redhat.com>


# 3a378723 23-Sep-2024 Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'pci-v6.12-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci

Pull pci updates from Bjorn Helgaas:
"Enumeration:

- Wait for device readiness after reset by polling Vend

Merge tag 'pci-v6.12-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci

Pull pci updates from Bjorn Helgaas:
"Enumeration:

- Wait for device readiness after reset by polling Vendor ID and
looking for Configuration RRS instead of polling the Command
register and looking for non-error completions, to avoid hardware
retries done for RRS on non-Vendor ID reads (Bjorn Helgaas)

- Rename CRS Completion Status to RRS ('Request Retry Status') to
match PCIe r6.0 spec usage (Bjorn Helgaas)

- Clear LBMS bit after a manual link retrain so we don't try to
retrain a link when there's no downstream device anymore (Maciej W.
Rozycki)

- Revert to the original link speed after retraining fails instead of
leaving it restricted to 2.5GT/s, so a future device has a chance
to use higher speeds (Maciej W. Rozycki)

- Wait for each level of downstream bus, not just the first, to
become accessible before restoring devices on that bus (Ilpo
Järvinen)

- Add ARCH_PCI_DEV_GROUPS so s390 can add its own attribute_groups
without having to stomp on the core's pdev->dev.groups (Lukas
Wunner)

Driver binding:

- Export pcim_request_region(), a managed counterpart of
pci_request_region(), for use by drivers (Philipp Stanner)

- Export pcim_iomap_region() and deprecate pcim_iomap_regions()
(Philipp Stanner)

- Request the PCI BAR used by xboxvideo (Philipp Stanner)

- Request and map drm/ast BARs with pcim_iomap_region() (Philipp
Stanner)

MSI:

- Add MSI_FLAG_NO_AFFINITY flag for devices that mux MSIs onto a
single IRQ line and cannot set the affinity of each MSI to a
specific CPU core (Marek Vasut)

- Use MSI_FLAG_NO_AFFINITY and remove unnecessary .irq_set_affinity()
implementations in aardvark, altera, brcmstb, dwc, mediatek-gen3,
mediatek, mobiveil, plda, rcar, tegra, vmd, xilinx-nwl,
xilinx-xdma, and xilinx drivers to avoid 'IRQ: set affinity failed'
warnings (Marek Vasut)

Power management:

- Add pwrctl support for ATH11K inside the WCN6855 package (Konrad
Dybcio)

PCI device hotplug:

- Remove unnecessary hpc_ops struct from shpchp (ngn)

- Check for PCI_POSSIBLE_ERROR(), not 0xffffffff, in cpqphp
(weiyufeng)

Virtualization:

- Mark Creative Labs EMU20k2 INTx masking as broken (Alex Williamson)

- Add an ACS quirk for Qualcomm SA8775P, which doesn't advertise ACS
but does provide ACS-like features (Subramanian Ananthanarayanan)

IOMMU:

- Add function 0 DMA alias quirk for Glenfly Arise audio function,
which uses the function 0 Requester ID (WangYuli)

NPEM:

- Add Native PCIe Enclosure Management (NPEM) support for sysfs
control of NVMe RAID storage indicators (ok/fail/locate/
rebuild/etc) (Mariusz Tkaczyk)

- Add support for the ACPI _DSM PCIe SSD status LED management, which
is functionally similar to NPEM but mediated by platform firmware
(Mariusz Tkaczyk)

Device trees:

- Drop minItems and maxItems from ranges in PCI generic host binding
since host bridges may have several MMIO and I/O port apertures
(Frank Li)

- Add kirin, rcar-gen2, uniphier DT binding top-level constraints for
clocks (Krzysztof Kozlowski)

Altera PCIe controller driver:

- Convert altera DT bindings from text to YAML (Matthew Gerlach)

- Replace TLP_REQ_ID() with macro PCI_DEVID(), which does the same
thing and is what other drivers use (Jinjie Ruan)

Broadcom STB PCIe controller driver:

- Add DT binding maxItems for reset controllers (Jim Quinlan)

- Use the 'bridge' reset method if described in the DT (Jim Quinlan)

- Use the 'swinit' reset method if described in the DT (Jim Quinlan)

- Add 'has_phy' so the existence of a 'rescal' reset controller
doesn't imply software control of it (Jim Quinlan)

- Add support for many inbound DMA windows (Jim Quinlan)

- Rename SoC 'type' to 'soc_base' express the fact that SoCs come in
families of multiple similar devices (Jim Quinlan)

- Add Broadcom 7712 DT description and driver support (Jim Quinlan)

- Sort enums, pcie_offsets[], pcie_cfg_data, .compatible strings for
maintainability (Bjorn Helgaas)

Freescale i.MX6 PCIe controller driver:

- Add imx6q-pcie 'dbi2' and 'atu' reg-names for i.MX8M Endpoints
(Richard Zhu)

- Fix a code restructuring error that caused i.MX8MM and i.MX8MP
Endpoints to fail to establish link (Richard Zhu)

- Fix i.MX8MP Endpoint occasional failure to trigger MSI by enforcing
outbound alignment requirement (Richard Zhu)

- Call phy_power_off() in the .probe() error path (Frank Li)

- Rename internal names from imx6_* to imx_* since i.MX7/8/9 are also
supported (Frank Li)

- Manage Refclk by using SoC-specific callbacks instead of switch
statements (Frank Li)

- Manage core reset by using SoC-specific callbacks instead of switch
statements (Frank Li)

- Expand comments for erratum ERR010728 workaround (Frank Li)

- Use generic PHY APIs to configure mode, speed, and submode, which
is harmless for devices that implement their own internal PHY
management and don't set the generic imx_pcie->phy (Frank Li)

- Add i.MX8Q (i.MX8QM, i.MX8QXP, and i.MX8DXL) DT binding and driver
Root Complex support (Richard Zhu)

Freescale Layerscape PCIe controller driver:

- Replace layerscape-pcie DT binding compatible fsl,lx2160a-pcie with
fsl,lx2160ar2-pcie (Frank Li)

- Add layerscape-pcie DT binding deprecated 'num-viewport' property
to address a DT checker warning (Frank Li)

- Change layerscape-pcie DT binding 'fsl,pcie-scfg' to phandle-array
(Frank Li)

Loongson PCIe controller driver:

- Increase max PCI hosts to 8 for Loongson-3C6000 and newer chipsets
(Huacai Chen)

Marvell Aardvark PCIe controller driver:

- Fix issue with emulating Configuration RRS for two-byte reads of
Vendor ID; previously it only worked for four-byte reads (Bjorn
Helgaas)

MediaTek PCIe Gen3 controller driver:

- Add per-SoC struct mtk_gen3_pcie_pdata to support multiple SoC
types (Lorenzo Bianconi)

- Use reset_bulk APIs to manage PHY reset lines (Lorenzo Bianconi)

- Add DT and driver support for Airoha EN7581 PCIe controller
(Lorenzo Bianconi)

Qualcomm PCIe controller driver:

- Update qcom,pcie-sc7280 DT binding with eight interrupts (Rayyan
Ansari)

- Add back DT 'vddpe-3v3-supply', which was incorrectly removed
earlier (Johan Hovold)

- Drop endpoint redundant masking of global IRQ events (Manivannan
Sadhasivam)

- Clarify unknown global IRQ message and only log it once to avoid a
flood (Manivannan Sadhasivam)

- Add 'linux,pci-domain' property to endpoint DT binding (Manivannan
Sadhasivam)

- Assign PCI domain number for endpoint controllers (Manivannan
Sadhasivam)

- Add 'qcom_pcie_ep' and the PCI domain number to IRQ names for
endpoint controller (Manivannan Sadhasivam)

- Add global SPI interrupt for PCIe link events to DT binding
(Manivannan Sadhasivam)

- Add global RC interrupt handler to handle 'Link up' events and
automatically enumerate hot-added devices (Manivannan Sadhasivam)

- Avoid mirroring of DBI and iATU register space so it doesn't
overlap BAR MMIO space (Prudhvi Yarlagadda)

- Enable controller resources like PHY only after PERST# is
deasserted to partially avoid the problem that the endpoint SoC
crashes when accessing things when Refclk is absent (Manivannan
Sadhasivam)

- Add 16.0 GT/s equalization and RX lane margining settings (Shashank
Babu Chinta Venkata)

- Pass domain number to pci_bus_release_domain_nr() explicitly to
avoid a NULL pointer dereference (Manivannan Sadhasivam)

Renesas R-Car PCIe controller driver:

- Make the read-only const array 'check_addr' static (Colin Ian King)

- Add R-Car V4M (R8A779H0) PCIe host and endpoint to DT binding
(Yoshihiro Shimoda)

TI DRA7xx PCIe controller driver:

- Request IRQF_ONESHOT for 'dra7xx-pcie-main' IRQ since the primary
handler is NULL (Siddharth Vadapalli)

- Handle IRQ request errors during root port and endpoint probe
(Siddharth Vadapalli)

TI J721E PCIe driver:

- Add DT 'ti,syscon-acspcie-proxy-ctrl' and driver support to enable
the ACSPCIE module to drive Refclk for the Endpoint (Siddharth
Vadapalli)

- Extract the cadence link setup from cdns_pcie_host_setup() so link
setup can be done separately during resume (Thomas Richard)

- Add T_PERST_CLK_US definition for the mandatory delay between
Refclk becoming stable and PERST# being deasserted (Thomas Richard)

- Add j721e suspend and resume support (Théo Lebrun)

TI Keystone PCIe controller driver:

- Fix NULL pointer checking when applying MRRS limitation quirk for
AM65x SR 1.0 Errata #i2037 (Dan Carpenter)

Xilinx NWL PCIe controller driver:

- Fix off-by-one error in INTx IRQ handler that caused INTx
interrupts to be lost or delivered as the wrong interrupt (Sean
Anderson)

- Rate-limit misc interrupt messages (Sean Anderson)

- Turn off the clock on probe failure and device removal (Sean
Anderson)

- Add DT binding and driver support for enabling/disabling PHYs (Sean
Anderson)

- Add PCIe phy bindings for the ZCU102 (Sean Anderson)

Xilinx XDMA PCIe controller driver:

- Add support for Xilinx QDMA Soft IP PCIe Root Port Bridge to DT
binding and xilinx-dma-pl driver (Thippeswamy Havalige)

Miscellaneous:

- Fix buffer overflow in kirin_pcie_parse_port() (Alexandra Diupina)

- Fix minor kerneldoc issues and typos (Bjorn Helgaas)

- Use PCI_DEVID() macro in aer_inject() instead of open-coding it
(Jinjie Ruan)

- Check pcie_find_root_port() return in x86 fixups to avoid NULL
pointer dereferences (Samasth Norway Ananda)

- Make pci_bus_type constant (Kunwu Chan)

- Remove unused declarations of __pci_pme_wakeup() and
pci_vpd_release() (Yue Haibing)

- Remove any leftover .*.cmd files with make clean (zhang jiao)

- Remove unused BILLION macro (zhang jiao)"

* tag 'pci-v6.12-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (132 commits)
PCI: Fix typos
dt-bindings: PCI: qcom: Allow 'vddpe-3v3-supply' again
tools: PCI: Remove unused BILLION macro
tools: PCI: Remove .*.cmd files with make clean
PCI: Pass domain number to pci_bus_release_domain_nr() explicitly
PCI: dra7xx: Fix error handling when IRQ request fails in probe
PCI: dra7xx: Fix threaded IRQ request for "dra7xx-pcie-main" IRQ
PCI: qcom: Add RX lane margining settings for 16.0 GT/s
PCI: qcom: Add equalization settings for 16.0 GT/s
PCI: dwc: Always cache the maximum link speed value in dw_pcie::max_link_speed
PCI: dwc: Rename 'dw_pcie::link_gen' to 'dw_pcie::max_link_speed'
PCI: qcom-ep: Enable controller resources like PHY only after refclk is available
PCI: Mark Creative Labs EMU20k2 INTx masking as broken
dt-bindings: PCI: imx6q-pcie: Add reg-name "dbi2" and "atu" for i.MX8M PCIe Endpoint
dt-bindings: PCI: altera: msi: Convert to YAML
PCI: imx6: Add i.MX8Q PCIe Root Complex (RC) support
PCI: Rename CRS Completion Status to RRS
PCI: aardvark: Correct Configuration RRS checking
PCI: Wait for device readiness with Configuration RRS
PCI: brcmstb: Sort enums, pcie_offsets[], pcie_cfg_data, .compatible strings
...

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