- Document sysfs "irq" attribute, which contains either the INTx IRQ (the
intended behavior) or the first MSI IRQ (historical mistake retained for
backwards compatibility) (Barry Song)
- Rework "irq" sysfs show function to explicitly fetch first MSI IRQ
instead of depending on core to put it in dev->irq, to enable future core
cleanup (Barry Song)
* pci/msi:
PCI/sysfs: Explicitly show first MSI IRQ for 'irq'
PCI: Document /sys/bus/pci/devices/.../irq
- Ignore Link Down/Up caused by error-induced Hot Reset so endpoint driver
can remain bound to device during error recovery (Lukas Wunner)
- Remove unused resume err_handler (Lukas Wunner)
- Remove unused pcie_port_bus_{,un}register() declarations (Lukas Wunner)
- Skip compiling err.c when CONFIG_PCIEAER not set (Lukas Wunner)
* pci/hotplug:
PCI/ERR: Reduce compile time for CONFIG_PCIEAER=n
PCI/portdrv: Remove unused pcie_port_bus_{,un}register() declarations
PCI/portdrv: Remove unused resume err_handler
PCI: pciehp: Ignore Link Down/Up caused by error-induced Hot Reset
PCI/portdrv: Rename pm_iter() to pcie_port_device_iter()
- Drop the struct pci_dev.driver pointer, which is redundant with the
struct device.driver pointer (Uwe Kleine-König)
* pci/driver:
PCI: Remove struct pci_dev->driver
PCI: Use to_pci_driver() instead of pci_dev->driver
x86/pci/probe_roms: Use to_pci_driver() instead of pci_dev->driver
perf/x86/intel/uncore: Use to_pci_driver() instead of pci_dev->driver
powerpc/eeh: Use to_pci_driver() instead of pci_dev->driver
usb: xhci: Use to_pci_driver() instead of pci_dev->driver
cxl: Use to_pci_driver() instead of pci_dev->driver
cxl: Factor out common dev->driver expressions
xen/pcifront: Use to_pci_driver() instead of pci_dev->driver
xen/pcifront: Drop pcifront_common_process() tests of pcidev, pdrv
nfp: use dev_driver_string() instead of pci_dev->driver->name
mlxsw: pci: Use dev_driver_string() instead of pci_dev->driver->name
net: marvell: prestera: use dev_driver_string() instead of pci_dev->driver->name
net: hns3: use dev_driver_string() instead of pci_dev->driver->name
crypto: hisilicon - use dev_driver_string() instead of pci_dev->driver->name
powerpc/eeh: Use dev_driver_string() instead of struct pci_dev->driver->name
ssb: Use dev_driver_string() instead of pci_dev->driver->name
bcma: simplify reference to driver name
crypto: qat - simplify adf_enable_aer()
scsi: message: fusion: Remove unused mpt_pci driver .probe() 'id' parameter
PCI/ERR: Factor out common dev->driver expressions
PCI: Drop pci_device_probe() test of !pci_dev->driver
PCI: Drop pci_device_remove() test of pci_dev->driver
PCI: Return NULL for to_pci_driver(NULL)
- Rename pcibios_add_device() to pcibios_device_add() since it's called
from pci_device_add() (Oliver O'Halloran)
- Don't try to enable AtomicOps on VFs, since they can only be enabled on
the PF (Selvin Xavier)
* pci/enumeration:
PCI: Do not enable AtomicOps on VFs
PCI: Rename pcibios_add_device() to pcibios_device_add()
Host crashes when pci_enable_atomic_ops_to_root() is called for VFs with
virtual buses. The virtual buses added to SR-IOV have bus->self set to NULL
and host crashes due to this.
PID: 4481 TASK: ffff89c6941b0000 CPU: 53 COMMAND: "bash"
...
#3 [ffff9a9481713808] oops_end at ffffffffb9025cd6
#4 [ffff9a9481713828] page_fault_oops at ffffffffb906e417
#5 [ffff9a9481713888] exc_page_fault at ffffffffb9a0ad14
#6 [ffff9a94817138b0] asm_exc_page_fault at ffffffffb9c00ace
[exception RIP: pcie_capability_read_dword+28]
RIP: ffffffffb952fd5c RSP: ffff9a9481713960 RFLAGS: 00010246
RAX: 0000000000000001 RBX: ffff89c6b1096000 RCX: 0000000000000000
RDX: ffff9a9481713990 RSI: 0000000000000024 RDI: 0000000000000000
RBP: 0000000000000080 R8: 0000000000000008 R9: ffff89c64341a2f8
R10: 0000000000000002 R11: 0000000000000000 R12: ffff89c648bab000
R13: 0000000000000000 R14: 0000000000000000 R15: ffff89c648bab0c8
ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018
#7 [ffff9a9481713988] pci_enable_atomic_ops_to_root at ffffffffb95359a6
#8 [ffff9a94817139c0] bnxt_qplib_determine_atomics at ffffffffc08c1a33 [bnxt_re]
#9 [ffff9a94817139d0] bnxt_re_dev_init at ffffffffc08ba2d1 [bnxt_re]
Per PCIe r5.0, sec 9.3.5.10, the AtomicOp Requester Enable bit in Device
Control 2 is reserved for VFs. The PF value applies to all associated VFs.
Return -EINVAL if pci_enable_atomic_ops_to_root() is called for a VF.
Link: https://lore.kernel.org/r/1631354585-16597-1-git-send-email-selvin.xavier@broadcom.com
Fixes: 35f5ace5de ("RDMA/bnxt_re: Enable global atomic ops if platform supports")
Fixes: 430a23689d ("PCI: Add pci_enable_atomic_ops_to_root()")
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Andy Gospodarek <gospo@broadcom.com>
Per PCIe r5.0, sec 7.5.3.16, Downstream Ports must disable LTR if the link
goes down (the Port goes DL_Down status). This is a problem because the
Downstream Port's dev->ltr_path is still set, so we think LTR is still
enabled, and we enable LTR in the Endpoint. When it sends LTR messages,
they cause Unsupported Request errors at the Downstream Port.
This happens in the reset path, where we may enable LTR in
pci_restore_pcie_state() even though the Downstream Port disabled LTR
because the reset caused a link down event.
It also happens in the hot-remove and hot-add path, where we may enable LTR
in pci_configure_ltr() even though the Downstream Port disabled LTR when
the hot-remove took the link down.
In these two scenarios, check the upstream bridge and restore its LTR
enable if appropriate.
The Unsupported Request may be logged by AER as follows:
pcieport 0000:00:1d.0: AER: Uncorrected (Non-Fatal) error received: id=00e8
pcieport 0000:00:1d.0: PCIe Bus Error: severity=Uncorrected (Non-Fatal), type=Transaction Layer, id=00e8(Requester ID)
pcieport 0000:00:1d.0: device [8086:9d18] error status/mask=00100000/00010000
pcieport 0000:00:1d.0: [20] Unsupported Request (First)
In addition, if LTR is not configured correctly, the link cannot enter the
L1.2 state, which prevents some machines from entering the S0ix low power
state.
[bhelgaas: commit log]
Link: https://lore.kernel.org/r/20211012075614.54576-1-mingchuang.qiao@mediatek.com
Reported-by: Utkarsh H Patel <utkarsh.h.patel@intel.com>
Signed-off-by: Mingchuang Qiao <mingchuang.qiao@mediatek.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
The sysfs "irq" file contains the legacy INTx IRQ. Or, if the device has
MSI enabled, it contains the first MSI IRQ instead.
Previously this file showed the pci_dev.irq value directly. But we'd
prefer to use pci_dev.irq only for the INTx IRQ and decouple that from any
MSI or MSI-X IRQs.
If the device has MSI enabled, explicitly look up and show the first MSI
IRQ in the sysfs "irq" file. Otherwise, show the INTx IRQ.
This removes the requirement that msi_capability_init() set pci_dev.irq to
the first MSI IRQ when enabling MSI and pci_msi_shutdown() restore the INTx
IRQ when disabling MSI.
[bhelgaas: commit log]
Link: https://lore.kernel.org/r/20210825102636.52757-3-21cnbao@gmail.com
Signed-off-by: Barry Song <song.bao.hua@hisilicon.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Struct pci_driver contains a struct device_driver, so for PCI devices, it's
easy to convert a device_driver * to a pci_driver * with to_pci_driver().
The device_driver * is in struct device, so we don't need to also keep
track of the pci_driver * in struct pci_dev.
Replace pci_dev->driver with to_pci_driver(). This is a step toward
removing pci_dev->driver.
[bhelgaas: split to separate patch]
Link: https://lore.kernel.org/r/20211004125935.2300113-11-u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
The sole non-static function in err.c, pcie_do_recovery(), is only
called from:
* aer.c (if CONFIG_PCIEAER=y)
* dpc.c (if CONFIG_PCIE_DPC=y, which depends on CONFIG_PCIEAER)
* edr.c (if CONFIG_PCIE_EDR=y, which depends on CONFIG_PCIE_DPC)
Thus, err.c need not be compiled if CONFIG_PCIEAER=n.
Also, pci_uevent_ers() and pcie_clear_device_status(), which are called
from err.c, can be #ifdef'ed away unless CONFIG_PCIEAER=y.
Since x86_64_defconfig doesn't enable CONFIG_PCIEAER, this change may
slightly reduce compile time for anyone doing a test build with that
config.
Link: https://lore.kernel.org/r/98f9041151268c1c035ab64cca320ad86803f64a.1627638184.git.lukas@wunner.de
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Commit 3e41a317ae ("PCI/AER: Remove unused aer_error_resume()")
removed the resume err_handler from AER. Since no other port service
implements the callback, support for it can be removed from portdrv.
It can be revived later if need be, preferably by re-using the
pcie_port_device_iter() iterator.
Link: https://lore.kernel.org/r/25334149b604e005058aeb0fdf51e01f991d5d74.1627638184.git.lukas@wunner.de
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Keith Busch <kbusch@kernel.org>
Stuart Hayes reports that an error handled by DPC at a Root Port results
in pciehp gratuitously bringing down a subordinate hotplug port:
RP -- UP -- DP -- UP -- DP (hotplug) -- EP
pciehp brings the slot down because the Link to the Endpoint goes down.
That is caused by a Hot Reset being propagated as a result of DPC.
Per PCIe Base Spec 5.0, section 6.6.1 "Conventional Reset":
For a Switch, the following must cause a hot reset to be sent on all
Downstream Ports: [...]
* The Data Link Layer of the Upstream Port reporting DL_Down status.
In Switches that support Link speeds greater than 5.0 GT/s, the
Upstream Port must direct the LTSSM of each Downstream Port to the
Hot Reset state, but not hold the LTSSMs in that state. This permits
each Downstream Port to begin Link training immediately after its
hot reset completes. This behavior is recommended for all Switches.
* Receiving a hot reset on the Upstream Port.
Once DPC recovers, pcie_do_recovery() walks down the hierarchy and
invokes pcie_portdrv_slot_reset() to restore each port's config space.
At that point, a hotplug interrupt is signaled per PCIe Base Spec r5.0,
section 6.7.3.4 "Software Notification of Hot-Plug Events":
If the Port is enabled for edge-triggered interrupt signaling using
MSI or MSI-X, an interrupt message must be sent every time the logical
AND of the following conditions transitions from FALSE to TRUE: [...]
* The Hot-Plug Interrupt Enable bit in the Slot Control register is
set to 1b.
* At least one hot-plug event status bit in the Slot Status register
and its associated enable bit in the Slot Control register are both
set to 1b.
Prevent pciehp from gratuitously bringing down the slot by clearing the
error-induced Data Link Layer State Changed event before restoring
config space. Afterwards, check whether the link has unexpectedly
failed to retrain and synthesize a DLLSC event if so.
Allow each pcie_port_service_driver (one of them being pciehp) to define
a slot_reset callback and re-use the existing pm_iter() function to
iterate over the callbacks.
Thereby, the Endpoint driver remains bound throughout error recovery and
may restore the device to working state.
Surprise removal during error recovery is detected through a Presence
Detect Changed event. The hotplug port is expected to not signal that
event as a result of a Hot Reset.
The issue isn't DPC-specific, it also occurs when an error is handled by
AER through aer_root_reset(). So while the issue was noticed only now,
it's been around since 2006 when AER support was first introduced.
[bhelgaas: drop PCI_ERROR_RECOVERY Kconfig, split pm_iter() rename to
preparatory patch]
Link: https://lore.kernel.org/linux-pci/08c046b0-c9f2-3489-eeef-7e7aca435bb9@gmail.com/
Fixes: 6c2b374d74 ("PCI-Express AER implemetation: AER core and aerdriver")
Link: https://lore.kernel.org/r/251f4edcc04c14f873ff1c967bc686169cd07d2d.1627638184.git.lukas@wunner.de
Reported-by: Stuart Hayes <stuart.w.hayes@gmail.com>
Tested-by: Stuart Hayes <stuart.w.hayes@gmail.com>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable@vger.kernel.org # v2.6.19+: ba952824e6: PCI/portdrv: Report reset for frozen channel
Cc: Keith Busch <kbusch@kernel.org>
Struct pci_driver contains a struct device_driver, so for PCI devices, it's
easy to convert a device_driver * to a pci_driver * with to_pci_driver().
The device_driver * is in struct device, so we don't need to also keep
track of the pci_driver * in struct pci_dev.
Replace pdev->driver with to_pci_driver(). This is a step toward removing
pci_dev->driver.
[bhelgaas: split to separate patch]
Link: https://lore.kernel.org/r/20211004125935.2300113-11-u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
pcifront_common_process() exits early if pcidev or pcidev->driver are NULL,
so simplify it by not checking them again.
[bhelgaas: split flag change to separate patch]
Link: https://lore.kernel.org/r/20211004125935.2300113-4-u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Save the struct pci_driver pointer from pdev->driver instead of repeating
it several times. No functional change.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
When the device core calls the .probe() callback for a device, the device
is never bound, so pci_dev->driver is always NULL.
Remove the unnecessary test of !pci_dev->driver.
Link: https://lore.kernel.org/r/20211004125935.2300113-3-u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
When the driver core calls pci_device_remove(), there is a driver bound
to the device, so pci_dev->driver is never NULL.
Remove the unnecessary test of pci_dev->driver.
Link: https://lore.kernel.org/r/20211004125935.2300113-2-u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
The general convention for pcibios_* hooks is that they're named after the
corresponding pci_* function they provide a hook for. The exception is
pcibios_add_device() which provides a hook for pci_device_add().
Rename pcibios_add_device() to pcibios_device_add() so it matches
pci_device_add().
Also, remove the export of the microblaze version. The only caller must be
compiled as a built-in so there's no reason for the export.
Link: https://lore.kernel.org/r/20210913152709.48013-1-oohall@gmail.com
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Niklas Schnelle <schnelle@linux.ibm.com> # s390
Some AMD GPUs have built-in USB xHCI and USB Type-C UCSI controllers with
power dependencies between the GPU and the other functions as in
6d2e369f0d ("PCI: Add NVIDIA GPU multi-function power dependencies").
Add device link support for the AMD integrated USB xHCI and USB Type-C UCSI
controllers.
Without this, runtime power management, including GPU resume and temp and
fan sensors don't work correctly.
Reported-at: https://gitlab.freedesktop.org/drm/amd/-/issues/1704
Link: https://lore.kernel.org/r/20210903063311.3606226-1-evan.quan@amd.com
Signed-off-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable@vger.kernel.org
Commit 375553a932 ("PCI: Setup ACPI fwnode early and at the same time
with OF") added a call to pci_set_acpi_fwnode() in pci_setup_device(),
which unconditionally clears any fwnode previously set by
pci_set_of_node().
pci_set_acpi_fwnode() looks for ACPI_COMPANION(), which only returns the
existing fwnode if it was set by ACPI_COMPANION_SET(). If it was set by
OF instead, ACPI_COMPANION() returns NULL and pci_set_acpi_fwnode()
accidentally clears the fwnode. To fix this, look for any fwnode instead
of just ACPI companions.
Fixes a virtio-iommu boot regression in v5.15-rc1.
Fixes: 375553a932 ("PCI: Setup ACPI fwnode early and at the same time with OF")
Link: https://lore.kernel.org/r/20210913172358.1775381-1-jean-philippe@linaro.org
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
7bac54497c ("PCI/VPD: Determine VPD size in pci_vpd_init()") reads VPD at
enumeration-time to find the size. But this is quite slow, and we don't
need the size until we actually need data from VPD. Dave reported a boot
slowdown of more than two minutes [1].
Defer the VPD sizing until a driver or the user (via sysfs) requests
information from VPD.
If devices are quirked because VPD is known not to work, don't bother even
looking for the VPD capability. The VPD will not be accessible at all.
[1] https://lore.kernel.org/r/20210913141818.GA27911@codemonkey.org.uk/
Link: https://lore.kernel.org/r/20210914215543.GA1437800@bjorn-Precision-5520
Fixes: 7bac54497c ("PCI/VPD: Determine VPD size in pci_vpd_init()")
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
- Add ACPI support to the PCI VMD driver (Rafael Wysocki).
- Rearrange suspend-to-idle support code to reflect the platform
firmware expectations on some AMD platforms (Mario Limonciello).
- Make SSDT overlays documentation follow the code documented by it
more closely (Andy Shevchenko).
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Merge tag 'acpi-5.15-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more ACPI updates from Rafael Wysocki:
"These add ACPI support to the PCI VMD driver, improve suspend-to-idle
support for AMD platforms and update documentation.
Specifics:
- Add ACPI support to the PCI VMD driver (Rafael Wysocki)
- Rearrange suspend-to-idle support code to reflect the platform
firmware expectations on some AMD platforms (Mario Limonciello)
- Make SSDT overlays documentation follow the code documented by it
more closely (Andy Shevchenko)"
* tag 'acpi-5.15-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: PM: s2idle: Run both AMD and Microsoft methods if both are supported
Documentation: ACPI: Align the SSDT overlays file with the code
PCI: VMD: ACPI: Make ACPI companion lookup work for VMD bus
Pull swiotlb updates from Konrad Rzeszutek Wilk:
"A new feature called restricted DMA pools. It allows SWIOTLB to
utilize per-device (or per-platform) allocated memory pools instead of
using the global one.
The first big user of this is ARM Confidential Computing where the
memory for DMA operations can be set per platform"
* 'stable/for-linus-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb: (23 commits)
swiotlb: use depends on for DMA_RESTRICTED_POOL
of: restricted dma: Don't fail device probe on rmem init failure
of: Move of_dma_set_restricted_buffer() into device.c
powerpc/svm: Don't issue ultracalls if !mem_encrypt_active()
s390/pv: fix the forcing of the swiotlb
swiotlb: Free tbl memory in swiotlb_exit()
swiotlb: Emit diagnostic in swiotlb_exit()
swiotlb: Convert io_default_tlb_mem to static allocation
of: Return success from of_dma_set_restricted_buffer() when !OF_ADDRESS
swiotlb: add overflow checks to swiotlb_bounce
swiotlb: fix implicit debugfs declarations
of: Add plumbing for restricted DMA pool
dt-bindings: of: Add restricted DMA pool
swiotlb: Add restricted DMA pool initialization
swiotlb: Add restricted DMA alloc/free support
swiotlb: Refactor swiotlb_tbl_unmap_single
swiotlb: Move alloc_size to swiotlb_find_slots
swiotlb: Use is_swiotlb_force_bounce for swiotlb data bouncing
swiotlb: Update is_swiotlb_active to add a struct device argument
swiotlb: Update is_swiotlb_buffer to add a struct device argument
...
- Fix dma-valid return WAITED implementation (Anthony Yznaga)
- SPDX license cleanups (Cai Huoqing)
- Split vfio-pci-core from vfio-pci and enhance PCI driver matching
to support future vendor provided vfio-pci variants (Yishai Hadas,
Max Gurtovoy, Jason Gunthorpe)
- Replace duplicated reflck with core support for managing first
open, last close, and device sets (Jason Gunthorpe, Max Gurtovoy,
Yishai Hadas)
- Fix non-modular mdev support and don't nag about request callback
support (Christoph Hellwig)
- Add semaphore to protect instruction intercept handler and replace
open-coded locks in vfio-ap driver (Tony Krowiak)
- Convert vfio-ap to vfio_register_group_dev() API (Jason Gunthorpe)
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Merge tag 'vfio-v5.15-rc1' of git://github.com/awilliam/linux-vfio
Pull VFIO updates from Alex Williamson:
- Fix dma-valid return WAITED implementation (Anthony Yznaga)
- SPDX license cleanups (Cai Huoqing)
- Split vfio-pci-core from vfio-pci and enhance PCI driver matching to
support future vendor provided vfio-pci variants (Yishai Hadas, Max
Gurtovoy, Jason Gunthorpe)
- Replace duplicated reflck with core support for managing first open,
last close, and device sets (Jason Gunthorpe, Max Gurtovoy, Yishai
Hadas)
- Fix non-modular mdev support and don't nag about request callback
support (Christoph Hellwig)
- Add semaphore to protect instruction intercept handler and replace
open-coded locks in vfio-ap driver (Tony Krowiak)
- Convert vfio-ap to vfio_register_group_dev() API (Jason Gunthorpe)
* tag 'vfio-v5.15-rc1' of git://github.com/awilliam/linux-vfio: (37 commits)
vfio/pci: Introduce vfio_pci_core.ko
vfio: Use kconfig if XX/endif blocks instead of repeating 'depends on'
vfio: Use select for eventfd
PCI / VFIO: Add 'override_only' support for VFIO PCI sub system
PCI: Add 'override_only' field to struct pci_device_id
vfio/pci: Move module parameters to vfio_pci.c
vfio/pci: Move igd initialization to vfio_pci.c
vfio/pci: Split the pci_driver code out of vfio_pci_core.c
vfio/pci: Include vfio header in vfio_pci_core.h
vfio/pci: Rename ops functions to fit core namings
vfio/pci: Rename vfio_pci_device to vfio_pci_core_device
vfio/pci: Rename vfio_pci_private.h to vfio_pci_core.h
vfio/pci: Rename vfio_pci.c to vfio_pci_core.c
vfio/ap_ops: Convert to use vfio_register_group_dev()
s390/vfio-ap: replace open coded locks for VFIO_GROUP_NOTIFY_SET_KVM notification
s390/vfio-ap: r/w lock for PQAP interception handler function pointer
vfio/type1: Fix vfio_find_dma_valid return
vfio-pci/zdev: Remove repeated verbose license text
vfio: platform: reset: Convert to SPDX identifier
vfio: Remove struct vfio_device_ops open/release
...
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Merge tag 'for-linus-5.15-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen updates from Juergen Gross:
- some small cleanups
- a fix for a bug when running as Xen PV guest which could result in
not all memory being transferred in case of a migration of the guest
- a small series for getting rid of code for supporting very old Xen
hypervisor versions nobody should be using since many years now
- a series for hardening the Xen block frontend driver
- a fix for Xen PV boot code issuing warning messages due to a stray
preempt_disable() on the non-boot processors
* tag 'for-linus-5.15-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen: remove stray preempt_disable() from PV AP startup code
xen/pcifront: Removed unnecessary __ref annotation
x86: xen: platform-pci-unplug: use pr_err() and pr_warn() instead of raw printk()
drivers/xen/xenbus/xenbus_client.c: fix bugon.cocci warnings
xen/blkfront: don't trust the backend response data blindly
xen/blkfront: don't take local copy of a request from the ring page
xen/blkfront: read response from backend only once
xen: assume XENFEAT_gnttab_map_avail_bits being set for pv guests
xen: assume XENFEAT_mmu_pt_update_preserve_ad being set for pv guests
xen: check required Xen features
xen: fix setting of max_pfn in shared_info
- Add max-virtual-functions to endpoint binding (Kishon Vijay Abraham I)
- Add pci_epf_add_vepf() API to add virtual function to endpoint (Kishon
Vijay Abraham I)
- Add pci_epf_vepf_link() to link virtual function to endpoint physical
function (Kishon Vijay Abraham I)
- Add virtual function number to pci_epc_ops endpoint ops interfaces
(Kishon Vijay Abraham I)
- Simplify register base address computation for endpoint BAR configuration
(Kishon Vijay Abraham I)
- Add support to configure virtual functions in cadence endpoint driver
(Kishon Vijay Abraham I)
- Add SR-IOV configuration to endpoint test driver (Kishon Vijay Abraham I)
- Document configfs usage to create virtual functions for endpoints (Kishon
Vijay Abraham I)
* remotes/lorenzo/pci/endpoint:
Documentation: PCI: endpoint/pci-endpoint-cfs: Guide to use SR-IOV
misc: pci_endpoint_test: Populate sriov_configure ops to configure SR-IOV device
PCI: cadence: Add support to configure virtual functions
PCI: cadence: Simplify code to get register base address for configuring BAR
PCI: endpoint: Add virtual function number in pci_epc ops
PCI: endpoint: Add support to link a physical function to a virtual function
PCI: endpoint: Add support to add virtual function in endpoint core
dt-bindings: PCI: pci-ep: Add binding to specify virtual function
- Fix runtime PM imbalance in rcar_pcie_ep_probe() (Dinghao Liu)
* remotes/lorenzo/pci/rcar:
PCI: rcar: Add L1 link state fix into data abort hook
PCI: rcar: Fix runtime PM imbalance in rcar_pcie_ep_probe()
- Split DT bindings for PCIe controllers with independent MSI domains into
separate nodes for MT2712/MT7622 (Chuanjia Liu)
- Locate shared registers from "mediatek,generic-pciecfg" property
(Chuanjia Liu)
- Get IRQ from "pcie_irq" if "interrupt-names" property is present to fix
an MSI issue (Chuanjia Liu)
- Get PCI domain from "linux,pci-domain" property if present (Chuanjia Liu)
* remotes/lorenzo/pci/mediatek:
PCI: mediatek: Use PCI domain to handle ports detection
PCI: mediatek: Add new method to get irq number
PCI: mediatek: Add new method to get shared pcie-cfg base address
dt-bindings: PCI: mediatek: Update the Device tree bindings
- Add domain_nr in struct pci_host_bridge (Boqun Feng)
- Use host bridge MSI domain for root buses if present (Boqun Feng)
- Allow ARM64 virtual host bridge with no ACPI companion (e.g., Hyper-V)
(Boqun Feng)
- Make Hyper-V enumeration more generic (Arnd Bergmann)
- Set Hyper-V domain_nr at probe-time (Boqun Feng)
- Set up Hyper-V MSI domain at bridge probe-time (Boqun Feng)
- Enable Hyper-V bridge probing on ARM64 (Boqun Feng)
* remotes/lorenzo/pci/hyper-v:
PCI: hv: Turn on the host bridge probing on ARM64
PCI: hv: Set up MSI domain at bridge probing time
PCI: hv: Set ->domain_nr of pci_host_bridge at probing time
PCI: hv: Generify PCI probing
arm64: PCI: Support root bridge preparation for Hyper-V
arm64: PCI: Restructure pcibios_root_bridge_prepare()
PCI: Support populating MSI domains of root buses via bridges
PCI: Introduce domain_nr in pci_host_bridge
- Convert bool in structs to bitfield (Kishon Vijay Abraham I)
- Work around J7200 non-PCIe SERDES lane electrical issue that prevents
PCIe link training (Nadeem Athani)
- Add J7200 PCIe support to j721e (Kishon Vijay Abraham I)
- Add AM64 PCIe support to j721e (Kishon Vijay Abraham I)
- Add J7200 and AM64 device IDs to endpoint test (Kishon Vijay Abraham I)
* remotes/lorenzo/pci/cadence:
misc: pci_endpoint_test: Add deviceID for AM64 and J7200
PCI: j721e: Add PCIe support for AM64
PCI: j721e: Add PCIe support for J7200
PCI: cadence: Add quirk flag to set minimum delay in LTSSM Detect.Quiet state
PCI: cadence: Use bitfield for *quirk_retrain_flag* instead of bool
- Fix PIO config access status checking (Evan Wang)
- Increase config access polling delay to 1.5s (Pali Rohár)
- Add PCIe Root Capabilities to bridge emulation (Pali Rohár)
- Report Config Request Retry Status when Software Visibility enabled (Pali
Rohár)
- Add back configuration of PCIe resources from 'ranges' DT property and
pay attention to DT size and CPU/PCI offset to fix issues with I/O port
space (Pali Rohár)
- Serialize masking and unmasking legacy INTx interrupts (Pali Rohár)
* remotes/lorenzo/pci/aardvark:
PCI: aardvark: Fix masking and unmasking legacy INTx interrupts
PCI: aardvark: Configure PCIe resources from 'ranges' DT property
PCI: aardvark: Fix reporting CRS value
PCI: pci-bridge-emul: Add PCIe Root Capabilities Register
PCI: aardvark: Increase polling delay to 1.5s while waiting for PIO response
PCI: aardvark: Fix checking for PIO status
