mirror of https://gitee.com/openkylin/linux.git
1314 Commits
| Author | SHA1 | Message | Date |
|---|---|---|---|
Linus Torvalds
|
00937f36b0 |
pci-v5.10-changes
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Merge tag 'pci-v5.10-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
"Enumeration:
- Print IRQ number used by PCIe Link Bandwidth Notification (Dongdong
Liu)
- Add schedule point in pci_read_config() to reduce max latency
(Jiang Biao)
- Add Kconfig options for MPS/MRRS strategy (Jim Quinlan)
Resource management:
- Fix pci_iounmap() memory leak when !CONFIG_GENERIC_IOMAP (Lorenzo
Pieralisi)
PCIe native device hotplug:
- Reduce noisiness on hot removal (Lukas Wunner)
Power management:
- Revert "PCI/PM: Apply D2 delay as milliseconds, not microseconds"
that was done on the basis of spec typo (Bjorn Helgaas)
- Rename pci_dev.d3_delay to d3hot_delay to remove D3hot/D3cold
ambiguity (Krzysztof Wilczyński)
- Remove unused pcibios_pm_ops (Vaibhav Gupta)
IOMMU:
- Enable Translation Blocking for external devices to harden against
DMA attacks (Rajat Jain)
Error handling:
- Add an ACPI APEI notifier chain for vendor CPER records to enable
device-specific error handling (Shiju Jose)
ASPM:
- Remove struct aspm_register_info to simplify code (Saheed O.
Bolarinwa)
Amlogic Meson PCIe controller driver:
- Build as module by default (Kevin Hilman)
Ampere Altra PCIe controller driver:
- Add MCFG quirk to work around non-standard ECAM implementation
(Tuan Phan)
Broadcom iProc PCIe controller driver:
- Set affinity mask on MSI interrupts (Mark Tomlinson)
Broadcom STB PCIe controller driver:
- Make PCIE_BRCMSTB depend on ARCH_BRCMSTB (Jim Quinlan)
- Add DT bindings for more Brcmstb chips (Jim Quinlan)
- Add bcm7278 register info (Jim Quinlan)
- Add bcm7278 PERST# support (Jim Quinlan)
- Add suspend and resume pm_ops (Jim Quinlan)
- Add control of rescal reset (Jim Quinlan)
- Set additional internal memory DMA viewport sizes (Jim Quinlan)
- Accommodate MSI for older chips (Jim Quinlan)
- Set bus max burst size by chip type (Jim Quinlan)
- Add support for bcm7211, bcm7216, bcm7445, bcm7278 (Jim Quinlan)
Freescale i.MX6 PCIe controller driver:
- Use dev_err_probe() to reduce redundant messages (Anson Huang)
Freescale Layerscape PCIe controller driver:
- Enforce 4K DMA buffer alignment in endpoint test (Hou Zhiqiang)
- Add DT compatible strings for ls1088a, ls2088a (Xiaowei Bao)
- Add endpoint support for ls1088a, ls2088a (Xiaowei Bao)
- Add endpoint test support for lS1088a (Xiaowei Bao)
- Add MSI-X support for ls1088a (Xiaowei Bao)
HiSilicon HIP PCIe controller driver:
- Handle HIP-specific errors via ACPI APEI (Yicong Yang)
HiSilicon Kirin PCIe controller driver:
- Return -EPROBE_DEFER if the GPIO isn't ready (Bean Huo)
Intel VMD host bridge driver:
- Factor out physical offset, bus offset, IRQ domain, IRQ allocation
(Jon Derrick)
- Use generic PCI PM correctly (Jon Derrick)
Marvell Aardvark PCIe controller driver:
- Fix compilation on s390 (Pali Rohár)
- Implement driver 'remove' function and allow to build it as module
(Pali Rohár)
- Move PCIe reset card code to advk_pcie_train_link() (Pali Rohár)
- Convert mvebu a3700 internal SMCC firmware return codes to errno
(Pali Rohár)
- Fix initialization with old Marvell's Arm Trusted Firmware (Pali
Rohár)
Microsoft Hyper-V host bridge driver:
- Fix hibernation in case interrupts are not re-created (Dexuan Cui)
NVIDIA Tegra PCIe controller driver:
- Stop checking return value of debugfs_create() functions (Greg
Kroah-Hartman)
- Convert to use DEFINE_SEQ_ATTRIBUTE macro (Liu Shixin)
Qualcomm PCIe controller driver:
- Reset PCIe to work around Qsdk U-Boot issue (Ansuel Smith)
Renesas R-Car PCIe controller driver:
- Add DT documentation for r8a774a1, r8a774b1, r8a774e1 endpoints
(Lad Prabhakar)
- Add RZ/G2M, RZ/G2N, RZ/G2H IDs to endpoint test (Lad Prabhakar)
- Add DT support for r8a7742 (Lad Prabhakar)
Socionext UniPhier Pro5 controller driver:
- Add DT descriptions of iATU register (host and endpoint) (Kunihiko
Hayashi)
Synopsys DesignWare PCIe controller driver:
- Add link up check in dw_child_pcie_ops.map_bus() (racy, but seems
unavoidable) (Hou Zhiqiang)
- Fix endpoint Header Type check so multi-function devices work (Hou
Zhiqiang)
- Skip PCIE_MSI_INTR0* programming if MSI is disabled (Jisheng Zhang)
- Stop leaking MSI page in suspend/resume (Jisheng Zhang)
- Add common iATU register support instead of keystone-specific code
(Kunihiko Hayashi)
- Major config space access and other cleanups in dwc core and
drivers that use it (al, exynos, histb, imx6, intel-gw, keystone,
kirin, meson, qcom, tegra) (Rob Herring)
- Add multiple PFs support for endpoint (Xiaowei Bao)
- Add MSI-X doorbell mode in endpoint mode (Xiaowei Bao)
Miscellaneous:
- Use fallthrough pseudo-keyword (Gustavo A. R. Silva)
- Fix "0 used as NULL pointer" warnings (Gustavo Pimentel)
- Fix "cast truncates bits from constant value" warnings (Gustavo
Pimentel)
- Remove redundant zeroing for sg_init_table() (Julia Lawall)
- Use scnprintf(), not snprintf(), in sysfs "show" functions
(Krzysztof Wilczyński)
- Remove unused assignments (Krzysztof Wilczyński)
- Fix "0 used as NULL pointer" warning (Krzysztof Wilczyński)
- Simplify bool comparisons (Krzysztof Wilczyński)
- Use for_each_child_of_node() and for_each_node_by_name() (Qinglang
Miao)
- Simplify return expressions (Qinglang Miao)"
* tag 'pci-v5.10-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (147 commits)
PCI: vmd: Update VMD PM to correctly use generic PCI PM
PCI: vmd: Create IRQ allocation helper
PCI: vmd: Create IRQ Domain configuration helper
PCI: vmd: Create bus offset configuration helper
PCI: vmd: Create physical offset helper
PCI: v3-semi: Remove unneeded break
PCI: dwc: Add link up check in dw_child_pcie_ops.map_bus()
PCI/ASPM: Remove struct pcie_link_state.l1ss
PCI/ASPM: Remove struct aspm_register_info.l1ss_cap
PCI/ASPM: Pass L1SS Capabilities value, not struct aspm_register_info
PCI/ASPM: Remove struct aspm_register_info.l1ss_ctl1
PCI/ASPM: Remove struct aspm_register_info.l1ss_ctl2 (unused)
PCI/ASPM: Remove struct aspm_register_info.l1ss_cap_ptr
PCI/ASPM: Remove struct aspm_register_info.latency_encoding
PCI/ASPM: Remove struct aspm_register_info.enabled
PCI/ASPM: Remove struct aspm_register_info.support
PCI/ASPM: Use 'parent' and 'child' for readability
PCI/ASPM: Move LTR path check to where it's used
PCI/ASPM: Move pci_clear_and_set_dword() earlier
PCI: dwc: Fix MSI page leakage in suspend/resume
...
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Krzysztof Wilczyński
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23cce2e00b |
PCI: shpchp: Remove unused 'rc' assignment
The value of the constant POWER_FAILURE assigned to the variable rc
after the power fault check is never used for anything, so remove it.
Addresses-Coverity-ID:
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Lukas Wunner
|
8a61449941 |
PCI: pciehp: Reduce noisiness on hot removal
When a PCIe card is hot-removed, the Presence Detect State and Data Link Layer Link Active bits often do not clear simultaneously. I've seen delays of up to 244 msec between the two events with Thunderbolt. After pciehp has brought down the slot in response to the first event, the other bit may still be set. It's not discernible whether it's set because a new card is already in the slot or if it will soon clear. So pciehp tries to bring up the slot and in the latter case fails with a bunch of messages, some of them at KERN_ERR severity. If the slot is no longer occupied, the messages are false positives and annoy users. Stuart Hayes reports the following splat on hot removal: KERN_INFO pcieport 0000:3c:06.0: pciehp: Slot(180): Link Up KERN_INFO pcieport 0000:3c:06.0: pciehp: Timeout waiting for Presence Detect KERN_ERR pcieport 0000:3c:06.0: pciehp: link training error: status 0x0001 KERN_ERR pcieport 0000:3c:06.0: pciehp: Failed to check link status Dongdong Liu complains about a similar splat: KERN_INFO pciehp 0000:80:10.0:pcie004: Slot(36): Link Down KERN_INFO iommu: Removing device 0000:87:00.0 from group 12 KERN_INFO pciehp 0000:80:10.0:pcie004: Slot(36): Card present KERN_INFO pcieport 0000:80:10.0: Data Link Layer Link Active not set in 1000 msec KERN_ERR pciehp 0000:80:10.0:pcie004: Failed to check link status Users are particularly irritated to see a bringup attempt even though the slot was explicitly brought down via sysfs. In a perfect world, we could avoid this by setting Link Disable on slot bringdown and re-enabling it upon a Presence Detect State change. In reality however, there are broken hotplug ports which hardwire Presence Detect to zero, see |
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Qinglang Miao
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85d79c5281 |
PCI: rpadlpar: Use for_each_child_of_node() and for_each_node_by_name()
Use for_each_child_of_node() and for_each_node_by_name() macros instead of open coding them. Link: https://lore.kernel.org/r/20200916062128.190819-1-miaoqinglang@huawei.com Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> |
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Gustavo A. R. Silva
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df561f6688 |
treewide: Use fallthrough pseudo-keyword
Replace the existing /* fall through */ comments and its variants with the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary fall-through markings when it is the case. [1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> |
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Niklas Schnelle
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2f0230b2f2 |
s390/pci: re-introduce zpci_remove_device()
For fixing the PF to VF link removal we need to perform some action on every removal of a zdev from the common PCI subsystem. So in preparation re-introduce zpci_remove_device() and use that instead of directly calling the common code functions. This was actually still declared from earlier code but no longer implemented. Reviewed-by: Pierre Morel <pmorel@linux.ibm.com> Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> |
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Linus Torvalds
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049eb096da |
pci-v5.9-changes
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Merge tag 'pci-v5.9-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
"Enumeration:
- Fix pci_cfg_wait queue locking problem (Bjorn Helgaas)
- Convert PCIe capability PCIBIOS errors to errno (Bolarinwa Olayemi
Saheed)
- Align PCIe capability and PCI accessor return values (Bolarinwa
Olayemi Saheed)
- Fix pci_create_slot() reference count leak (Qiushi Wu)
- Announce device after early fixups (Tiezhu Yang)
PCI device hotplug:
- Make rpadlpar functions static (Wei Yongjun)
Driver binding:
- Add device even if driver attach failed (Rajat Jain)
Virtualization:
- xen: Remove redundant initialization of irq (Colin Ian King)
IOMMU:
- Add pci_pri_supported() to check device or associated PF (Ashok Raj)
- Release IVRS table in AMD ACS quirk (Hanjun Guo)
- Mark AMD Navi10 GPU rev 0x00 ATS as broken (Kai-Heng Feng)
- Treat "external-facing" devices themselves as internal (Rajat Jain)
MSI:
- Forward MSI-X error code in pci_alloc_irq_vectors_affinity() (Piotr
Stankiewicz)
Error handling:
- Clear PCIe Device Status errors only if OS owns AER (Jonathan
Cameron)
- Log correctable errors as warning, not error (Matt Jolly)
- Use 'pci_channel_state_t' instead of 'enum pci_channel_state' (Luc
Van Oostenryck)
Peer-to-peer DMA:
- Allow P2PDMA on AMD Zen and newer CPUs (Logan Gunthorpe)
ASPM:
- Add missing newline in sysfs 'policy' (Xiongfeng Wang)
Native PCIe controllers:
- Convert to devm_platform_ioremap_resource_byname() (Dejin Zheng)
- Convert to devm_platform_ioremap_resource() (Dejin Zheng)
- Remove duplicate error message from devm_pci_remap_cfg_resource()
callers (Dejin Zheng)
- Fix runtime PM imbalance on error (Dinghao Liu)
- Remove dev_err() when handing an error from platform_get_irq()
(Krzysztof Wilczyński)
- Use pci_host_bridge.windows list directly instead of splicing in a
temporary list for cadence, mvebu, host-common (Rob Herring)
- Use pci_host_probe() instead of open-coding all the pieces for
altera, brcmstb, iproc, mobiveil, rcar, rockchip, tegra, v3,
versatile, xgene, xilinx, xilinx-nwl (Rob Herring)
- Default host bridge parent device to the platform device (Rob
Herring)
- Use pci_is_root_bus() instead of tracking root bus number
separately in aardvark, designware (imx6, keystone,
designware-host), mobiveil, xilinx-nwl, xilinx, rockchip, rcar (Rob
Herring)
- Set host bridge bus number in pci_scan_root_bus_bridge() instead of
each driver for aardvark, designware-host, host-common, mediatek,
rcar, tegra, v3-semi (Rob Herring)
- Move DT resource setup into devm_pci_alloc_host_bridge() (Rob
Herring)
- Set bridge map_irq and swizzle_irq to default functions; drivers
that don't support legacy IRQs (iproc) need to undo this (Rob
Herring)
ARM Versatile PCIe controller driver:
- Drop flag PCI_ENABLE_PROC_DOMAINS (Rob Herring)
Cadence PCIe controller driver:
- Use "dma-ranges" instead of "cdns,no-bar-match-nbits" property
(Kishon Vijay Abraham I)
- Remove "mem" from reg binding (Kishon Vijay Abraham I)
- Fix cdns_pcie_{host|ep}_setup() error path (Kishon Vijay Abraham I)
- Convert all r/w accessors to perform only 32-bit accesses (Kishon
Vijay Abraham I)
- Add support to start link and verify link status (Kishon Vijay
Abraham I)
- Allow pci_host_bridge to have custom pci_ops (Kishon Vijay Abraham I)
- Add new *ops* for CPU addr fixup (Kishon Vijay Abraham I)
- Fix updating Vendor ID and Subsystem Vendor ID register (Kishon
Vijay Abraham I)
- Use bridge resources for outbound window setup (Rob Herring)
- Remove private bus number and range storage (Rob Herring)
Cadence PCIe endpoint driver:
- Add MSI-X support (Alan Douglas)
HiSilicon PCIe controller driver:
- Remove non-ECAM HiSilicon hip05/hip06 driver (Rob Herring)
Intel VMD host bridge driver:
- Use Shadow MEMBAR registers for QEMU/KVM guests (Jon Derrick)
Loongson PCIe controller driver:
- Use DECLARE_PCI_FIXUP_EARLY for bridge_class_quirk() (Tiezhu Yang)
Marvell Aardvark PCIe controller driver:
- Indicate error in 'val' when config read fails (Pali Rohár)
- Don't touch PCIe registers if no card connected (Pali Rohár)
Marvell MVEBU PCIe controller driver:
- Setup BAR0 in order to fix MSI (Shmuel Hazan)
Microsoft Hyper-V host bridge driver:
- Fix a timing issue which causes kdump to fail occasionally (Wei Hu)
- Make some functions static (Wei Yongjun)
NVIDIA Tegra PCIe controller driver:
- Revert tegra124 raw_violation_fixup (Nicolas Chauvet)
- Remove PLL power supplies (Thierry Reding)
Qualcomm PCIe controller driver:
- Change duplicate PCI reset to phy reset (Abhishek Sahu)
- Add missing ipq806x clocks in PCIe driver (Ansuel Smith)
- Add missing reset for ipq806x (Ansuel Smith)
- Add ext reset (Ansuel Smith)
- Use bulk clk API and assert on error (Ansuel Smith)
- Add support for tx term offset for rev 2.1.0 (Ansuel Smith)
- Define some PARF params needed for ipq8064 SoC (Ansuel Smith)
- Add ipq8064 rev2 variant (Ansuel Smith)
- Support PCI speed set for ipq806x (Sham Muthayyan)
Renesas R-Car PCIe controller driver:
- Use devm_pci_alloc_host_bridge() (Rob Herring)
- Use struct pci_host_bridge.windows list directly (Rob Herring)
- Convert rcar-gen2 to use modern host bridge probe functions (Rob
Herring)
TI J721E PCIe driver:
- Add TI J721E PCIe host and endpoint driver (Kishon Vijay Abraham I)
Xilinx Versal CPM PCIe controller driver:
- Add Versal CPM Root Port driver and YAML schema (Bharat Kumar
Gogada)
MicroSemi Switchtec management driver:
- Add missing __iomem and __user tags to fix sparse warnings (Logan
Gunthorpe)
Miscellaneous:
- Replace http:// links with https:// (Alexander A. Klimov)
- Replace lkml.org, spinics, gmane with lore.kernel.org (Bjorn
Helgaas)
- Remove unused pci_lost_interrupt() (Heiner Kallweit)
- Move PCI_VENDOR_ID_REDHAT definition to pci_ids.h (Huacai Chen)
- Fix kerneldoc warnings (Krzysztof Kozlowski)"
* tag 'pci-v5.9-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (113 commits)
PCI: Fix kerneldoc warnings
PCI: xilinx-cpm: Add Versal CPM Root Port driver
PCI: xilinx-cpm: Add YAML schemas for Versal CPM Root Port
PCI: Set bridge map_irq and swizzle_irq to default functions
PCI: Move DT resource setup into devm_pci_alloc_host_bridge()
PCI: rcar-gen2: Convert to use modern host bridge probe functions
PCI: Remove dev_err() when handing an error from platform_get_irq()
MAINTAINERS: Add Kishon Vijay Abraham I for TI J721E SoC PCIe
misc: pci_endpoint_test: Add J721E in pci_device_id table
PCI: j721e: Add TI J721E PCIe driver
PCI: switchtec: Add missing __iomem tag to fix sparse warnings
PCI: switchtec: Add missing __iomem and __user tags to fix sparse warnings
PCI: rpadlpar: Make functions static
PCI/P2PDMA: Allow P2PDMA on AMD Zen and newer CPUs
PCI: Release IVRS table in AMD ACS quirk
PCI: Announce device after early fixups
PCI: Mark AMD Navi10 GPU rev 0x00 ATS as broken
PCI: Remove unused pci_lost_interrupt()
dt-bindings: PCI: Add EP mode dt-bindings for TI's J721E SoC
dt-bindings: PCI: Add host mode dt-bindings for TI's J721E SoC
...
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Bjorn Helgaas
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65c2bc6ce9 |
Merge branch 'pci/doc'
- Fix several kerneldoc warnings (Krzysztof Kozlowski) * pci/doc: PCI: Fix kerneldoc warnings |
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Krzysztof Kozlowski
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9b41d19aff |
PCI: Fix kerneldoc warnings
Fix kerneldoc warnings, e.g., $ make W=1 drivers/pci/ drivers/pci/ats.c:196: warning: Function parameter or member 'pdev' not described in 'pci_enable_pri' drivers/pci/ats.c:196: warning: Function parameter or member 'reqs' not described in 'pci_enable_pri' ... Link: https://lore.kernel.org/r/20200729201224.26799-2-krzk@kernel.org Link: https://lore.kernel.org/r/20200729201224.26799-3-krzk@kernel.org Link: https://lore.kernel.org/r/20200729201224.26799-4-krzk@kernel.org Link: https://lore.kernel.org/r/20200729201224.26799-5-krzk@kernel.org Link: https://lore.kernel.org/r/20200729201224.26799-6-krzk@kernel.org Link: https://lore.kernel.org/r/20200729201224.26799-7-krzk@kernel.org Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> |
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Wei Yongjun
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2e4770a566 |
PCI: rpadlpar: Make functions static
The sparse tool report build warnings as follows: drivers/pci/hotplug/rpadlpar_core.c:355:5: warning: symbol 'dlpar_remove_pci_slot' was not declared. Should it be static? drivers/pci/hotplug/rpadlpar_core.c:461:12: warning: symbol 'rpadlpar_io_init' was not declared. Should it be static? drivers/pci/hotplug/rpadlpar_core.c:473:6: warning: symbol 'rpadlpar_io_exit' was not declared. Should it be static? Those functions are not used outside of this file, so mark them static. Also mark rpadlpar_io_exit() as __exit. Link: https://lore.kernel.org/r/20200721151735.41181-1-weiyongjun1@huawei.com Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> |
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Rafael J. Wysocki
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dae68d7fd4 |
PCI: hotplug: ACPI: Fix context refcounting in acpiphp_grab_context()
If context is not NULL in acpiphp_grab_context(), but the
is_going_away flag is set for the device's parent, the reference
counter of the context needs to be decremented before returning
NULL or the context will never be freed, so make that happen.
Fixes:
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Masahiro Yamada
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a7f7f6248d |
treewide: replace '---help---' in Kconfig files with 'help'
Since commit
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Linus Torvalds
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23fc02e36e |
s390 updates for the 5.8 merge window
- Add support for multi-function devices in pci code. - Enable PF-VF linking for architectures using the pdev->no_vf_scan flag (currently just s390). - Add reipl from NVMe support. - Get rid of critical section cleanup in entry.S. - Refactor PNSO CHSC (perform network subchannel operation) in cio and qeth. - QDIO interrupts and error handling fixes and improvements, more refactoring changes. - Align ioremap() with generic code. - Accept requests without the prefetch bit set in vfio-ccw. - Enable path handling via two new regions in vfio-ccw. - Other small fixes and improvements all over the code. -----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEE3QHqV+H2a8xAv27vjYWKoQLXFBgFAl7eVGcACgkQjYWKoQLX FBhweQgAkicvx31x230rdfG+jQkQkl0UqF99vvWrJHEll77SqadfjzKAGIjUB+K0 EoeHVD5Wcj7BogDGcyHeQ0bZpu4WzE+y1nmnrsvu7TEEvcBmkJH0rF2jF+y0sb/O 3qvwFkX/CB5OqaMzKC/AEeRpcCKR+ZUXkWu1irbYth7CBXaycD9EAPc4cj8CfYGZ r5njUdYOVk77TaO4aV+t5pCYc5TCRJaWXSsWaAv/nuLcIqsFBYOy2q+L47zITGXp utZVanIDjzx+ikpaKicOIfC3hJsRuNX9MnlZKsQFwpVEZAUZmIUm29XdhGJTWSxU RV7m1ORINbFP1nGAqWqkOvGo/LC0ZA== =VhXR -----END PGP SIGNATURE----- Merge tag 's390-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 updates from Vasily Gorbik: - Add support for multi-function devices in pci code. - Enable PF-VF linking for architectures using the pdev->no_vf_scan flag (currently just s390). - Add reipl from NVMe support. - Get rid of critical section cleanup in entry.S. - Refactor PNSO CHSC (perform network subchannel operation) in cio and qeth. - QDIO interrupts and error handling fixes and improvements, more refactoring changes. - Align ioremap() with generic code. - Accept requests without the prefetch bit set in vfio-ccw. - Enable path handling via two new regions in vfio-ccw. - Other small fixes and improvements all over the code. * tag 's390-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (52 commits) vfio-ccw: make vfio_ccw_regops variables declarations static vfio-ccw: Add trace for CRW event vfio-ccw: Wire up the CRW irq and CRW region vfio-ccw: Introduce a new CRW region vfio-ccw: Refactor IRQ handlers vfio-ccw: Introduce a new schib region vfio-ccw: Refactor the unregister of the async regions vfio-ccw: Register a chp_event callback for vfio-ccw vfio-ccw: Introduce new helper functions to free/destroy regions vfio-ccw: document possible errors vfio-ccw: Enable transparent CCW IPL from DASD s390/pci: Log new handle in clp_disable_fh() s390/cio, s390/qeth: cleanup PNSO CHSC s390/qdio: remove q->first_to_kick s390/qdio: fix up qdio_start_irq() kerneldoc s390: remove critical section cleanup from entry.S s390: add machine check SIGP s390/pci: ioremap() align with generic code s390/ap: introduce new ap function ap_get_qdev() Documentation/s390: Update / remove developerWorks web links ... |
|
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Linus Torvalds
|
3925c3bbdf |
pci-v5.8-changes
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Merge tag 'pci-v5.8-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
"Enumeration:
- Program MPS for RCiEP devices (Ashok Raj)
- Fix pci_register_host_bridge() device_register() error handling
(Rob Herring)
- Fix pci_host_bridge struct device release/free handling (Rob
Herring)
Resource management:
- Allow resizing BARs for devices on root bus (Ard Biesheuvel)
Power management:
- Reduce Thunderbolt resume time by working around devices that don't
support DLL Link Active reporting (Mika Westerberg)
- Work around a Pericom USB controller OHCI/EHCI PME# defect
(Kai-Heng Feng)
Virtualization:
- Add ACS quirk for Intel Root Complex Integrated Endpoints (Ashok
Raj)
- Avoid FLR for AMD Starship USB 3.0 (Kevin Buettner)
- Avoid FLR for AMD Matisse HD Audio & USB 3.0 (Marcos Scriven)
Error handling:
- Use only _OSC (not HEST FIRMWARE_FIRST) to determine AER ownership
(Alexandru Gagniuc, Kuppuswamy Sathyanarayanan)
- Reduce verbosity by logging only ACPI_NOTIFY_DISCONNECT_RECOVER
events (Kuppuswamy Sathyanarayanan)
- Don't enable AER by default in Kconfig (Bjorn Helgaas)
Peer-to-peer DMA:
- Add AMD Zen Raven and Renoir Root Ports to whitelist (Alex Deucher)
ASPM:
- Allow ASPM on links to PCIe-to-PCI/PCI-X Bridges (Kai-Heng Feng)
Endpoint framework:
- Fix DMA channel release in test (Kunihiko Hayashi)
- Add page size as argument to pci_epc_mem_init() (Lad Prabhakar)
- Add support to handle multiple base for mapping outbound memory
(Lad Prabhakar)
Generic host bridge driver:
- Support building as module (Rob Herring)
- Eliminate pci_host_common_probe wrappers (Rob Herring)
Amlogic Meson PCIe controller driver:
- Don't use FAST_LINK_MODE to set up link (Marc Zyngier)
Broadcom STB PCIe controller driver:
- Disable ASPM L0s if 'aspm-no-l0s' in DT (Jim Quinlan)
- Fix clk_put() error (Jim Quinlan)
- Fix window register offset (Jim Quinlan)
- Assert fundamental reset on initialization (Nicolas Saenz Julienne)
- Add notify xHCI reset property (Nicolas Saenz Julienne)
- Add init routine for Raspberry Pi 4 VL805 USB controller (Nicolas
Saenz Julienne)
- Sync with Raspberry Pi 4 firmware for VL805 initialization (Nicolas
Saenz Julienne)
Cadence PCIe controller driver:
- Remove "cdns,max-outbound-regions" DT property (replaced by
"ranges") (Kishon Vijay Abraham I)
- Read 32-bit (not 16-bit) Vendor ID/Device ID property from DT
(Kishon Vijay Abraham I)
Marvell Aardvark PCIe controller driver:
- Improve link training (Marek Behún)
- Add PHY support (Marek Behún)
- Add "phys", "max-link-speed", "reset-gpios" to dt-binding (Marek
Behún)
- Train link immediately after enabling training to work around
detection issues with some cards (Pali Rohár)
- Issue PERST via GPIO to work around detection issues (Pali Rohár)
- Don't blindly enable ASPM L0s (Pali Rohár)
- Replace custom macros by standard linux/pci_regs.h macros (Pali
Rohár)
Microsoft Hyper-V host bridge driver:
- Fix probe failure path to release resource (Wei Hu)
- Retry PCI bus D0 entry on invalid device state for kdump (Wei Hu)
Renesas R-Car PCIe controller driver:
- Fix incorrect programming of OB windows (Andrew Murray)
- Add suspend/resume (Kazufumi Ikeda)
- Rename pcie-rcar.c to pcie-rcar-host.c (Lad Prabhakar)
- Add endpoint controller driver (Lad Prabhakar)
- Fix PCIEPAMR mask calculation (Lad Prabhakar)
- Add r8a77961 to DT binding (Yoshihiro Shimoda)
Socionext UniPhier Pro5 controller driver:
- Add endpoint controller driver (Kunihiko Hayashi)
Synopsys DesignWare PCIe controller driver:
- Program outbound ATU upper limit register (Alan Mikhak)
- Fix inner MSI IRQ domain registration (Marc Zyngier)
Miscellaneous:
- Check for platform_get_irq() failure consistently (negative return
means failure) (Aman Sharma)
- Fix several runtime PM get/put imbalances (Dinghao Liu)
- Use flexible-array and struct_size() helpers for code cleanup
(Gustavo A. R. Silva)
- Update & fix issues in bridge emulation of PCIe registers (Jon
Derrick)
- Add macros for bridge window names (PCI_BRIDGE_IO_WINDOW, etc)
(Krzysztof Wilczyński)
- Work around Intel PCH MROMs that have invalid BARs (Xiaochun Lee)"
* tag 'pci-v5.8-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (100 commits)
PCI: uniphier: Add Socionext UniPhier Pro5 PCIe endpoint controller driver
PCI: Add ACS quirk for Intel Root Complex Integrated Endpoints
PCI/DPC: Print IRQ number used by port
PCI/AER: Use "aer" variable for capability offset
PCI/AER: Remove redundant dev->aer_cap checks
PCI/AER: Remove redundant pci_is_pcie() checks
PCI/AER: Remove HEST/FIRMWARE_FIRST parsing for AER ownership
PCI: tegra: Fix runtime PM imbalance on error
PCI: vmd: Filter resource type bits from shadow register
PCI: tegra194: Fix runtime PM imbalance on error
dt-bindings: PCI: Add UniPhier PCIe endpoint controller description
PCI: hv: Use struct_size() helper
PCI: Rename _DSM constants to align with spec
PCI: Avoid FLR for AMD Starship USB 3.0
PCI: Avoid FLR for AMD Matisse HD Audio & USB 3.0
x86/PCI: Drop unused xen_register_pirq() gsi_override parameter
PCI: dwc: Use private data pointer of "struct irq_domain" to get pcie_port
PCI: amlogic: meson: Don't use FAST_LINK_MODE to set up link
PCI: dwc: Fix inner MSI IRQ domain registration
PCI: dwc: pci-dra7xx: Use devm_platform_ioremap_resource_byname()
...
|
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Linus Torvalds
|
118d6e9829 |
ACPI updates for 5.8-rc1
- Update the ACPICA code in the kernel to upstream revision
20200430:
* Move acpi_gbl_next_cmd_num definition (Erik Kaneda).
* Ignore AE_ALREADY_EXISTS status in the disassembler when parsing
create operators (Erik Kaneda).
* Add status checks to the dispatcher (Erik Kaneda).
* Fix required parameters for _NIG and _NIH (Erik Kaneda).
* Make acpi_protocol_lengths static (Yue Haibing).
- Fix ACPI table reference counting errors in several places, mostly
in error code paths (Hanjun Guo).
- Extend the Generic Event Device (GED) driver to support _Exx and
_Lxx handler methods (Ard Biesheuvel).
- Add new acpi_evaluate_reg() helper and modify the ACPI PCI hotplug
code to use it (Hans de Goede).
- Add new DPTF battery participant driver and make the DPFT power
participant driver create more sysfs device attributes (Srinivas
Pandruvada).
- Improve the handling of memory failures in APEI (James Morse).
- Add new blacklist entry for Acer TravelMate 5735Z to the backlight
driver (Paul Menzel).
- Add i2c address for thermal control to the PMIC driver (Mauro
Carvalho Chehab).
- Allow the ACPI processor idle driver to work on platforms with
only one ACPI C-state present (Zhang Rui).
- Fix kobject reference count leaks in error code paths in two
places (Qiushi Wu).
- Delete unused proc filename macros and make some symbols static
(Pascal Terjan, Zheng Zengkai, Zou Wei).
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Merge tag 'acpi-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI updates from Rafael Wysocki:
"These update the ACPICA code in the kernel to upstream revision
20200430, fix several reference counting errors related to ACPI
tables, add _Exx / _Lxx support to the GED driver, add a new
acpi_evaluate_reg() helper, add new DPTF battery participant driver
and extend the DPFT power participant driver, improve the handling of
memory failures in the APEI code, add a blacklist entry to the
backlight driver, update the PMIC driver and the processor idle
driver, fix two kobject reference count leaks, and make a few janitory
changes.
Specifics:
- Update the ACPICA code in the kernel to upstream revision 20200430:
- Move acpi_gbl_next_cmd_num definition (Erik Kaneda).
- Ignore AE_ALREADY_EXISTS status in the disassembler when parsing
create operators (Erik Kaneda).
- Add status checks to the dispatcher (Erik Kaneda).
- Fix required parameters for _NIG and _NIH (Erik Kaneda).
- Make acpi_protocol_lengths static (Yue Haibing).
- Fix ACPI table reference counting errors in several places, mostly
in error code paths (Hanjun Guo).
- Extend the Generic Event Device (GED) driver to support _Exx and
_Lxx handler methods (Ard Biesheuvel).
- Add new acpi_evaluate_reg() helper and modify the ACPI PCI hotplug
code to use it (Hans de Goede).
- Add new DPTF battery participant driver and make the DPFT power
participant driver create more sysfs device attributes (Srinivas
Pandruvada).
- Improve the handling of memory failures in APEI (James Morse).
- Add new blacklist entry for Acer TravelMate 5735Z to the backlight
driver (Paul Menzel).
- Add i2c address for thermal control to the PMIC driver (Mauro
Carvalho Chehab).
- Allow the ACPI processor idle driver to work on platforms with only
one ACPI C-state present (Zhang Rui).
- Fix kobject reference count leaks in error code paths in two places
(Qiushi Wu).
- Delete unused proc filename macros and make some symbols static
(Pascal Terjan, Zheng Zengkai, Zou Wei)"
* tag 'acpi-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (32 commits)
ACPI: CPPC: Fix reference count leak in acpi_cppc_processor_probe()
ACPI: sysfs: Fix reference count leak in acpi_sysfs_add_hotplug_profile()
ACPI: GED: use correct trigger type field in _Exx / _Lxx handling
ACPI: DPTF: Add battery participant driver
ACPI: DPTF: Additional sysfs attributes for power participant driver
ACPI: video: Use native backlight on Acer TravelMate 5735Z
arm64: acpi: Make apei_claim_sea() synchronise with APEI's irq work
ACPI: APEI: Kick the memory_failure() queue for synchronous errors
mm/memory-failure: Add memory_failure_queue_kick()
ACPI / PMIC: Add i2c address for thermal control
ACPI: GED: add support for _Exx / _Lxx handler methods
ACPI: Delete unused proc filename macros
ACPI: hotplug: PCI: Use the new acpi_evaluate_reg() helper
ACPI: utils: Add acpi_evaluate_reg() helper
ACPI: debug: Make two functions static
ACPI: sleep: Put the FACS table after using it
ACPI: scan: Put SPCR and STAO table after using it
ACPI: EC: Put the ACPI table after using it
ACPI: APEI: Put the HEST table for error path
ACPI: APEI: Put the error record serialization table for error path
...
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Krzysztof Wilczynski
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cfbd83d02d |
PCI: shpchp: Make shpchp_unconfigure_device() void
shpchp_unconfigure_device() always returned 0, so there's no reason for a return value. In addition, remove_board() checked the return value for possible error which is unnecessary. Convert shpchp_unconfigure_device() to a void function and remove the return value check. This addresses the following Coccinelle warning: drivers/pci/hotplug/shpchp_pci.c:66:5-7: Unneeded variable: "rc". Return "0" on line 86 Link: https://lore.kernel.org/r/20200521190457.1066600-1-kw@linux.com Signed-off-by: Krzysztof Wilczynski <kw@linux.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> |
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Hans de Goede
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6dd10c47e9 |
ACPI: hotplug: PCI: Use the new acpi_evaluate_reg() helper
Use the new acpi_evaluate_reg() helper in the acpiphp_glue.c code. Acked-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
|
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Pierre Morel
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53dd462ac4 |
s390/pci: Do not disable PF when VFs exist
The Physical function should not be disabled until no virtual functions depends on it. Let's force the user to first use echo 0 > sriov_numfs before allowing to disable the PF with echo 0 > power. Signed-off-by: Pierre Morel <pmorel@linux.ibm.com> Reviewed-by: Niklas Schnelle <schnelle@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> |
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Pierre Morel
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44510d6fa0 |
s390/pci: Handling multifunctions
We allow multiple functions on a single bus. We suppress the ZPCI_DEVFN definition and replace its occurences with zpci->devfn. We verify the number of device during the registration. There can never be more domains in use than existing devices, so we do not need to verify the count of domain after having verified the count of devices. Signed-off-by: Pierre Morel <pmorel@linux.ibm.com> Reviewed-by: Niklas Schnelle <schnelle@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> |
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Pierre Morel
|
05bc1be6db |
s390/pci: create zPCI bus
The zPCI bus is in charge to handle common zPCI resources for zPCI devices. Creating the zPCI bus, the PCI bus, the zPCI devices and the PCI devices and hotplug slots done in a specific order: - PCI hotplug slot creation needs a PCI bus - PCI bus needs a PCI domain which is reported by the pci_domain_nr() when setting up the host bridge - PCI domain is set from the zPCI with devfn 0 this is necessary to have a reproducible enumeration Therefore we can not create devices or hotplug slots for any PCI device associated with a zPCI device before having discovered the function zero of the bus. The discovery and initialization of devices can be done at several points in the code: - On Events, serialized in a thread context - On initialization, in the kernel init thread context - When powering on the hotplug slot, in a user thread context The removal of devices and their parent bus may also be done on events or for devices when powering down the slot. To guarantee the existence of the bus and devices until they are no more needed we use kref in zPCI bus and introduce a reference count in the zPCI devices. In this patch the zPCI bus still only accept a device with a devfn 0. Signed-off-by: Pierre Morel <pmorel@linux.ibm.com> Reviewed-by: Niklas Schnelle <schnelle@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> |
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Rob Herring
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adc9fbcd7d |
PCI: Use of_node_name_eq() for node name comparisons
Convert string compares of DT node names to use of_node_name_eq() helper instead. This removes direct access to the node name pointer. Link: https://lore.kernel.org/r/20200416215114.7715-1-robh@kernel.org Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> |
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Rafael J. Wysocki
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fa2bfead91 |
PM: sleep: core: Rename dev_pm_smart_suspend_and_suspended()
Because all callers of dev_pm_smart_suspend_and_suspended use it only for checking whether or not to skip driver suspend callbacks for a device, rename it to dev_pm_skip_suspend() in analogy with dev_pm_skip_resume(). No functional impact. Suggested-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Acked-by: Bjorn Helgaas <bhelgaas@google.com> |
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Ani Sinha
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a6cec3fdbd |
PCI: pciehp: Remove unused EMI() and HP_SUPR_RM() macros
EMI() and HP_SUPR_RM() are unused, so remove them. Link: https://lore.kernel.org/r/1587439673-39652-1-git-send-email-ani@anisinha.ca Signed-off-by: Ani Sinha <ani@anisinha.ca> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> |
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Linus Torvalds
|
d38c07afc3 |
powerpc updates for 5.7
- A large series from Nick for 64-bit to further rework our exception vectors,
and rewrite portions of the syscall entry/exit and interrupt return in C. The
result is much easier to follow code that is also faster in general.
- Cleanup of our ptrace code to split various parts out that had become badly
intertwined with #ifdefs over the years.
- Changes to our NUMA setup under the PowerVM hypervisor which should
hopefully avoid non-sensical topologies which can lead to warnings from the
workqueue code and other problems.
- MAINTAINERS updates to remove some of our old orphan entries and update the
status of others.
- Quite a few other small changes and fixes all over the map.
Thanks to:
Abdul Haleem, afzal mohammed, Alexey Kardashevskiy, Andrew Donnellan, Aneesh
Kumar K.V, Balamuruhan S, Cédric Le Goater, Chen Zhou, Christophe JAILLET,
Christophe Leroy, Christoph Hellwig, Clement Courbet, Daniel Axtens, David
Gibson, Douglas Miller, Fabiano Rosas, Fangrui Song, Ganesh Goudar, Gautham R.
Shenoy, Greg Kroah-Hartman, Greg Kurz, Gustavo Luiz Duarte, Hari Bathini, Ilie
Halip, Jan Kara, Joe Lawrence, Joe Perches, Kajol Jain, Larry Finger,
Laurentiu Tudor, Leonardo Bras, Libor Pechacek, Madhavan Srinivasan, Mahesh
Salgaonkar, Masahiro Yamada, Masami Hiramatsu, Mauricio Faria de Oliveira,
Michael Neuling, Michal Suchanek, Mike Rapoport, Nageswara R Sastry, Nathan
Chancellor, Nathan Lynch, Naveen N. Rao, Nicholas Piggin, Nick Desaulniers,
Oliver O'Halloran, Po-Hsu Lin, Pratik Rajesh Sampat, Rasmus Villemoes, Ravi
Bangoria, Roman Bolshakov, Sam Bobroff, Sandipan Das, Santosh S, Sedat Dilek,
Segher Boessenkool, Shilpasri G Bhat, Sourabh Jain, Srikar Dronamraju, Stephen
Rothwell, Tyrel Datwyler, Vaibhav Jain, YueHaibing.
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Merge tag 'powerpc-5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
"Slightly late as I had to rebase mid-week to insert a bug fix:
- A large series from Nick for 64-bit to further rework our exception
vectors, and rewrite portions of the syscall entry/exit and
interrupt return in C. The result is much easier to follow code
that is also faster in general.
- Cleanup of our ptrace code to split various parts out that had
become badly intertwined with #ifdefs over the years.
- Changes to our NUMA setup under the PowerVM hypervisor which should
hopefully avoid non-sensical topologies which can lead to warnings
from the workqueue code and other problems.
- MAINTAINERS updates to remove some of our old orphan entries and
update the status of others.
- Quite a few other small changes and fixes all over the map.
Thanks to: Abdul Haleem, afzal mohammed, Alexey Kardashevskiy, Andrew
Donnellan, Aneesh Kumar K.V, Balamuruhan S, Cédric Le Goater, Chen
Zhou, Christophe JAILLET, Christophe Leroy, Christoph Hellwig, Clement
Courbet, Daniel Axtens, David Gibson, Douglas Miller, Fabiano Rosas,
Fangrui Song, Ganesh Goudar, Gautham R. Shenoy, Greg Kroah-Hartman,
Greg Kurz, Gustavo Luiz Duarte, Hari Bathini, Ilie Halip, Jan Kara,
Joe Lawrence, Joe Perches, Kajol Jain, Larry Finger, Laurentiu Tudor,
Leonardo Bras, Libor Pechacek, Madhavan Srinivasan, Mahesh Salgaonkar,
Masahiro Yamada, Masami Hiramatsu, Mauricio Faria de Oliveira, Michael
Neuling, Michal Suchanek, Mike Rapoport, Nageswara R Sastry, Nathan
Chancellor, Nathan Lynch, Naveen N. Rao, Nicholas Piggin, Nick
Desaulniers, Oliver O'Halloran, Po-Hsu Lin, Pratik Rajesh Sampat,
Rasmus Villemoes, Ravi Bangoria, Roman Bolshakov, Sam Bobroff,
Sandipan Das, Santosh S, Sedat Dilek, Segher Boessenkool, Shilpasri G
Bhat, Sourabh Jain, Srikar Dronamraju, Stephen Rothwell, Tyrel
Datwyler, Vaibhav Jain, YueHaibing"
* tag 'powerpc-5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (158 commits)
powerpc: Make setjmp/longjmp signature standard
powerpc/cputable: Remove unnecessary copy of cpu_spec->oprofile_type
powerpc: Suppress .eh_frame generation
powerpc: Drop -fno-dwarf2-cfi-asm
powerpc/32: drop unused ISA_DMA_THRESHOLD
powerpc/powernv: Add documentation for the opal sensor_groups sysfs interfaces
selftests/powerpc: Fix try-run when source tree is not writable
powerpc/vmlinux.lds: Explicitly retain .gnu.hash
powerpc/ptrace: move ptrace_triggered() into hw_breakpoint.c
powerpc/ptrace: create ppc_gethwdinfo()
powerpc/ptrace: create ptrace_get_debugreg()
powerpc/ptrace: split out ADV_DEBUG_REGS related functions.
powerpc/ptrace: move register viewing functions out of ptrace.c
powerpc/ptrace: split out TRANSACTIONAL_MEM related functions.
powerpc/ptrace: split out SPE related functions.
powerpc/ptrace: split out ALTIVEC related functions.
powerpc/ptrace: split out VSX related functions.
powerpc/ptrace: drop PARAMETER_SAVE_AREA_OFFSET
powerpc/ptrace: drop unnecessary #ifdefs CONFIG_PPC64
powerpc/ptrace: remove unused header includes
...
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Linus Torvalds
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ad0bf4eb91 |
s390 updates for the 5.7 merge window
- Update maintainers. Niklas Schnelle takes over zpci and Vineeth Vijayan common io code. - Extend cpuinfo to include topology information. - Add new extended counters for IBM z15 and sampling buffer allocation rework in perf code. - Add control over zeroing out memory during system restart. - CCA protected key block version 2 support and other fixes/improvements in crypto code. - Convert to new fallthrough; annotations. - Replace zero-length arrays with flexible-arrays. - QDIO debugfs and other small improvements. - Drop 2-level paging support optimization for compat tasks. Varios mm cleanups. - Remove broken and unused hibernate / power management support. - Remove fake numa support which does not bring any benefits. - Exclude offline CPUs from CPU topology masks to be more consistent with other architectures. - Prevent last branching instruction address leaking to userspace. - Other small various fixes and improvements all over the code. -----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEE3QHqV+H2a8xAv27vjYWKoQLXFBgFAl6Ig2YACgkQjYWKoQLX FBj2gggAibnHOl9d0ngX1mVT4nz51R3V8z5sEQjNMr2uHBmaTqs7pi/00gaFMxoC NngVEXvL443jSogQivthGgXPpRCV9xdKE3sp38j7fF4LgHoeuDtGd1oaX4W9Rqk0 7Yii35EaO2e2WHdOKaAbu+ZvDRunFjERyntc51MYaIUivFosogSo07vC73vFIArF VGStS09fJ4Ny76ott896T7Ulx1Iek/MkF1vponEMLGNUIcLIQbbxZxOwgz0pHuEF SlyyJBnhOIaAJGOYlKREQDt1cew+hsxluPU+a01bwdsmdZv9LH1BGwLayDqTH58i QWvtEpzJFmDvo9jGM1v81ebaGnyCKg== =hiGF -----END PGP SIGNATURE----- Merge tag 's390-5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 updates from Vasily Gorbik: - Update maintainers. Niklas Schnelle takes over zpci and Vineeth Vijayan common io code. - Extend cpuinfo to include topology information. - Add new extended counters for IBM z15 and sampling buffer allocation rework in perf code. - Add control over zeroing out memory during system restart. - CCA protected key block version 2 support and other fixes/improvements in crypto code. - Convert to new fallthrough; annotations. - Replace zero-length arrays with flexible-arrays. - QDIO debugfs and other small improvements. - Drop 2-level paging support optimization for compat tasks. Varios mm cleanups. - Remove broken and unused hibernate / power management support. - Remove fake numa support which does not bring any benefits. - Exclude offline CPUs from CPU topology masks to be more consistent with other architectures. - Prevent last branching instruction address leaking to userspace. - Other small various fixes and improvements all over the code. * tag 's390-5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (57 commits) s390/mm: cleanup init_new_context() callback s390/mm: cleanup virtual memory constants usage s390/mm: remove page table downgrade support s390/qdio: set qdio_irq->cdev at allocation time s390/qdio: remove unused function declarations s390/ccwgroup: remove pm support s390/ap: remove power management code from ap bus and drivers s390/zcrypt: use kvmalloc instead of kmalloc for 256k alloc s390/mm: cleanup arch_get_unmapped_area() and friends s390/ism: remove pm support s390/cio: use fallthrough; s390/vfio: use fallthrough; s390/zcrypt: use fallthrough; s390: use fallthrough; s390/cpum_sf: Fix wrong page count in error message s390/diag: fix display of diagnose call statistics s390/ap: Remove ap device suspend and resume callbacks s390/pci: Improve handling of unset UID s390/pci: Fix zpci_alloc_domain() over allocation s390/qdio: pass ISC as parameter to chsc_sadc() ... |
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Stuart Hayes
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8edf5332c3 |
PCI: pciehp: Fix MSI interrupt race
Without this commit, a PCIe hotplug port can stop generating interrupts on hotplug events, so device adds and removals will not be seen: The pciehp interrupt handler pciehp_isr() reads the Slot Status register and then writes back to it to clear the bits that caused the interrupt. If a different interrupt event bit gets set between the read and the write, pciehp_isr() returns without having cleared all of the interrupt event bits. If this happens when the MSI isn't masked (which by default it isn't in handle_edge_irq(), and which it will never be when MSI per-vector masking is not supported), we won't get any more hotplug interrupts from that device. That is expected behavior, according to the PCIe Base Spec r5.0, section 6.7.3.4, "Software Notification of Hot-Plug Events". Because the Presence Detect Changed and Data Link Layer State Changed event bits can both get set at nearly the same time when a device is added or removed, this is more likely to happen than it might seem. The issue was found (and can be reproduced rather easily) by connecting and disconnecting an NVMe storage device on at least one system model where the NVMe devices were being connected to an AMD PCIe port (PCI device 0x1022/0x1483). Fix the issue by modifying pciehp_isr() to loop back and re-read the Slot Status register immediately after writing to it, until it sees that all of the event status bits have been cleared. [lukas: drop loop count limitation, write "events" instead of "status", don't loop back in INTx and poll modes, tweak code comment & commit msg] Link: https://lore.kernel.org/r/78b4ced5072bfe6e369d20e8b47c279b8c7af12e.1582121613.git.lukas@wunner.de Tested-by: Stuart Hayes <stuart.w.hayes@gmail.com> Signed-off-by: Stuart Hayes <stuart.w.hayes@gmail.com> Signed-off-by: Lukas Wunner <lukas@wunner.de> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Joerg Roedel <jroedel@suse.de> |
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Lukas Wunner
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3e487d2e4a |
PCI: pciehp: Fix indefinite wait on sysfs requests
David Hoyer reports that powering pciehp slots up or down via sysfs may hang: The call to wait_event() in pciehp_sysfs_enable_slot() and _disable_slot() does not return because ctrl->ist_running remains true. This flag, which was introduced by commit |
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Oliver O'Halloran
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b6eebb093c |
powerpc/eeh: Make early EEH init pseries specific
The eeh_ops->probe() function is called from two different contexts: 1. On pseries, where we set EEH_PROBE_MODE_DEVTREE, it's called in eeh_add_device_early() which is supposed to run before we create a pci_dev. 2. On PowerNV, where we set EEH_PROBE_MODE_DEV, it's called in eeh_device_add_late() which is supposed to run *after* the pci_dev is created. The "early" probe is required because PAPR requires that we perform an RTAS call to enable EEH support on a device before we start interacting with it via config space or MMIO. This requirement doesn't exist on PowerNV and shoehorning two completely separate initialisation paths into a common interface just results in a convoluted code everywhere. Additionally the early probe requires the probe function to take an pci_dn rather than a pci_dev argument. We'd like to make pci_dn a pseries specific data structure since there's no real requirement for them on PowerNV. To help both goals move the early probe into the pseries containment zone so the platform depedence is more explicit. Reviewed-by: Sam Bobroff <sbobroff@linux.ibm.com> Signed-off-by: Oliver O'Halloran <oohall@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200306073904.4737-5-oohall@gmail.com |
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Oliver O'Halloran
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a4b4f61db8 |
powerpc/eeh: Do early EEH init only when required
The pci hotplug helper (pci_hp_add_devices()) calls eeh_add_device_tree_early() to scan the device-tree for new PCI devices and do the early EEH probe before the device is scanned. This early probe is a no-op in a lot of cases because: a) The early init is only required to satisfy a PAPR requirement that EEH be configured before we start doing config accesses. On PowerNV it is a no-op. b) It's a no-op for devices that have already had their eeh_dev initialised. There are four callers of pci_hp_add_devices(): 1. arch/powerpc/kernel/eeh_driver.c Here the hotplug helper is called when re-scanning pci_devs that were removed during an EEH recovery pass. The EEH stat for each removed device (the eeh_dev) is retained across a recovery pass so the early init is a no-op in this case. 2. drivers/pci/hotplug/pnv_php.c This is also a no-op since the PowerNV hotplug driver is, suprisingly, PowerNV specific. 3. drivers/pci/hotplug/rpaphp_core.c 4. drivers/pci/hotplug/rpaphp_pci.c In these two cases new devices have been hotplugged and FW has provided new DT nodes for each. These are the only two cases where the EEH we might have new PCI device nodes in the DT so these are the only two cases where the early EEH probe needs to be done. We can move the calls to eeh_add_device_tree_early() to the locations where it's needed and remove it from the generic path. This is preparation for making the early EEH probe pseries specific. Reviewed-by: Sam Bobroff <sbobroff@linux.ibm.com> Signed-off-by: Oliver O'Halloran <oohall@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200306073904.4737-3-oohall@gmail.com |
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Chen Zhou
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9475af081e |
PCI: rpaphp: Remove unused variable 'value'
Fixes gcc '-Wunused-but-set-variable' warning: drivers/pci/hotplug/rpaphp_core.c: In function is_php_type: drivers/pci/hotplug/rpaphp_core.c:291:16: warning: variable value set but not used [-Wunused-but-set-variable] Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Chen Zhou <chenzhou10@huawei.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200312140412.32373-1-chenzhou10@huawei.com |
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Pierre Morel
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035f212fa7 |
s390/pci: embedding hotplug_slot in zdev
Embedding the hotplug_slot in zdev structure allows to greatly simplify the hotplug handling by eliminating the handling of the slot_list. Signed-off-by: Pierre Morel <pmorel@linux.ibm.com> Reviewed-by: Niklas Schnelle <schnelle@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> |
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Stuart Hayes
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0b382546d8 |
PCI: pciehp: Add DMI table for in-band presence detection disabled
Some systems have in-band presence detection disabled for hot-plug PCI slots but do not report this in the slot capabilities 2 (SLTCAP2) register. On these systems, presence detect can become active well after the link is reported to be active, which can cause the slots to be disabled after a device is connected. Add a DMI table to flag these systems as having in-band presence detect disabled. Link: https://lore.kernel.org/r/20191025190047.38130-4-stuart.w.hayes@gmail.com Signed-off-by: Stuart Hayes <stuart.w.hayes@gmail.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Lukas Wunner <lukas@wunner.de> |
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Alexandru Gagniuc
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f496648b99 |
PCI: pciehp: Wait for PDS if in-band presence is disabled
When in-band presence detect is disabled, PDS may come up at any time or not at all. PDS being low may indicate that the card is still mating, and we could expect contact bounce to bring down the link as well. It is reasonable to assume that most cards will mate in a hotplug slot in about a second. Thus, when we know PDS only reflects out-of-band presence detect, it's worthwhile to wait the extra second or so to make sure the card is properly mated before loading the driver and to prevent the hotplug code from disabling a device if the presence detect change goes active after the device is enabled. Link: https://lore.kernel.org/r/20191025190047.38130-3-stuart.w.hayes@gmail.com [bhelgaas: use ctrl_info() instead of pci_info()] Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Signed-off-by: Stuart Hayes <stuart.w.hayes@gmail.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Lukas Wunner <lukas@wunner.de> |
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Alexandru Gagniuc
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202853595e |
PCI: pciehp: Disable in-band presence detect when possible
The presence detect state (PDS) is normally a logical OR of in-band and out-of-band (OOB) presence detect. As of PCIe 4.0, there is the option to disable in-band presence so that the PDS bit always reflects the state of the out-of-band presence. The recommendation of the PCIe spec is to disable in-band presence whenever supported (PCIe r5.0, appendix I implementation note): Due to architectural issues, the in-band (Physical-Layer-based) portion of the PD mechanism is deprecated for use with async hot-plug. One issue is that in-band PD as architected does not detect adapter removal during certain LTSSM states, notably the L1 and Disabled States. Another issue is that when both in-band and OOB PD are being used together, the Presence Detect State bit and its associated interrupt mechanism always reflect the logical OR of the inband and OOB PD states, and with some hot-plug hardware configurations, it is important for software to detect and respond to in-band and OOB PD events independently. If OOB PD is being used and the associated DSP supports In-Band PD Disable, it is recommended that the In-Band PD Disable bit be Set, and the Presence Detect State bit and its associated interrupt mechanism be used exclusively for OOB PD. As a substitute for in-band PD with async hot-plug, the reference model uses either the DPC or the DLL Link Active mechanism. Link: https://lore.kernel.org/r/20191025190047.38130-2-stuart.w.hayes@gmail.com [bhelgaas: move PCI_EXP_SLTCAP2 read earlier & print PCI_EXP_SLTCAP2_IBPD value (suggested by Lukas)] Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Lukas Wunner <lukas@wunner.de> |
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Frederic Barrat
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748ac391ab |
pci/hotplug/pnv-php: Wrap warnings in macro
An opencapi slot doesn't have an associated bridge device. It's not needed for operation, but any warning is displayed through pci_warn() which uses the pci_dev struct of the assocated bridge device. So wrap those warning so that a different trace mechanism can be used if it's an opencapi slot. Reviewed-by: Alastair D'Silva <alastair@d-silva.org> Reviewed-by: Andrew Donnellan <ajd@linux.ibm.com> Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20191121134918.7155-11-fbarrat@linux.ibm.com |
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Frederic Barrat
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be1611e043 |
pci/hotplug/pnv-php: Relax check when disabling slot
The driver only allows to disable a slot in the POPULATED state. However, if an error occurs while enabling the slot, say because the link couldn't be trained, then the POPULATED state may not be reached, yet the power state of the slot is on. So allow to disable a slot in the REGISTERED state. Removing the devices will do nothing since it's not populated, and we'll set the power state of the slot back to off. Reviewed-by: Alastair D'Silva <alastair@d-silva.org> Reviewed-by: Andrew Donnellan <ajd@linux.ibm.com> Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20191121134918.7155-10-fbarrat@linux.ibm.com |
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Frederic Barrat
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ea53919b15 |
pci/hotplug/pnv-php: Register opencapi slots
Add the opencapi PHBs to the list of PHBs being scanned to look for slots. Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com> Reviewed-by: Andrew Donnellan <ajd@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20191121134918.7155-9-fbarrat@linux.ibm.com |
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Frederic Barrat
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323c2a26ff |
pci/hotplug/pnv-php: Improve error msg on power state change failure
When changing the slot state, if opal hits an error and tells as such in the asynchronous reply, the warning "Wrong msg" is logged, which is rather confusing. Instead we can reuse the better message which is already used when we couldn't submit the asynchronous opal request initially. Reviewed-by: Alastair D'Silva <alastair@d-silva.org> Reviewed-by: Andrew Donnellan <ajd@linux.ibm.com> Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20191121134918.7155-8-fbarrat@linux.ibm.com |
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Frederic Barrat
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658ab186dd |
pci/hotplug/pnv-php: Remove erroneous warning
On powernv, when removing a device through hotplug, the following
warning is logged:
Invalid refcount <.> on <...>
It may be incorrect, the refcount may be set to a higher value than 1
and be valid. of_detach_node() can drop more than one reference. As it
doesn't seem trivial to assert the correct value, let's remove the
warning.
Reviewed-by: Alastair D'Silva <alastair@d-silva.org>
Reviewed-by: Andrew Donnellan <ajd@linux.ibm.com>
Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20191121134918.7155-7-fbarrat@linux.ibm.com
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Linus Torvalds
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c3bed3b20e |
pci-v5.5-changes
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Merge tag 'pci-v5.5-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
"Enumeration:
- Warn if a host bridge has no NUMA info (Yunsheng Lin)
- Add PCI_STD_NUM_BARS for the number of standard BARs (Denis
Efremov)
Resource management:
- Fix boot-time Embedded Controller GPE storm caused by incorrect
resource assignment after ACPI Bus Check Notification (Mika
Westerberg)
- Protect pci_reassign_bridge_resources() against concurrent
addition/removal (Benjamin Herrenschmidt)
- Fix bridge dma_ranges resource list cleanup (Rob Herring)
- Add "pci=hpmmiosize" and "pci=hpmmioprefsize" parameters to control
the MMIO and prefetchable MMIO window sizes of hotplug bridges
independently (Nicholas Johnson)
- Fix MMIO/MMIO_PREF window assignment that assigned more space than
desired (Nicholas Johnson)
- Only enforce bus numbers from bridge EA if the bridge has EA
devices downstream (Subbaraya Sundeep)
- Consolidate DT "dma-ranges" parsing and convert all host drivers to
use shared parsing (Rob Herring)
Error reporting:
- Restore AER capability after resume (Mayurkumar Patel)
- Add PoisonTLPBlocked AER counter (Rajat Jain)
- Use for_each_set_bit() to simplify AER code (Andy Shevchenko)
- Fix AER kernel-doc (Andy Shevchenko)
- Add "pcie_ports=dpc-native" parameter to allow native use of DPC
even if platform didn't grant control over AER (Olof Johansson)
Hotplug:
- Avoid returning prematurely from sysfs requests to enable or
disable a PCIe hotplug slot (Lukas Wunner)
- Don't disable interrupts twice when suspending hotplug ports (Mika
Westerberg)
- Fix deadlocks when PCIe ports are hot-removed while suspended (Mika
Westerberg)
Power management:
- Remove unnecessary ASPM locking (Bjorn Helgaas)
- Add support for disabling L1 PM Substates (Heiner Kallweit)
- Allow re-enabling Clock PM after it has been disabled (Heiner
Kallweit)
- Add sysfs attributes for controlling ASPM link states (Heiner
Kallweit)
- Remove CONFIG_PCIEASPM_DEBUG, including "link_state" and "clk_ctl"
sysfs files (Heiner Kallweit)
- Avoid AMD FCH XHCI USB PME# from D0 defect that prevents wakeup on
USB 2.0 or 1.1 connect events (Kai-Heng Feng)
- Move power state check out of pci_msi_supported() (Bjorn Helgaas)
- Fix incorrect MSI-X masking on resume and revert related nvme quirk
for Kingston NVME SSD running FW E8FK11.T (Jian-Hong Pan)
- Always return devices to D0 when thawing to fix hibernation with
drivers like mlx4 that used legacy power management (previously we
only did it for drivers with new power management ops) (Dexuan Cui)
- Clear PCIe PME Status even for legacy power management (Bjorn
Helgaas)
- Fix PCI PM documentation errors (Bjorn Helgaas)
- Use dev_printk() for more power management messages (Bjorn Helgaas)
- Apply D2 delay as milliseconds, not microseconds (Bjorn Helgaas)
- Convert xen-platform from legacy to generic power management (Bjorn
Helgaas)
- Removed unused .resume_early() and .suspend_late() legacy power
management hooks (Bjorn Helgaas)
- Rearrange power management code for clarity (Rafael J. Wysocki)
- Decode power states more clearly ("4" or "D4" really refers to
"D3cold") (Bjorn Helgaas)
- Notice when reading PM Control register returns an error (~0)
instead of interpreting it as being in D3hot (Bjorn Helgaas)
- Add missing link delays required by the PCIe spec (Mika Westerberg)
Virtualization:
- Move pci_prg_resp_pasid_required() to CONFIG_PCI_PRI (Bjorn
Helgaas)
- Allow VFs to use PRI (the PF PRI is shared by the VFs, but the code
previously didn't recognize that) (Kuppuswamy Sathyanarayanan)
- Allow VFs to use PASID (the PF PASID capability is shared by the
VFs, but the code previously didn't recognize that) (Kuppuswamy
Sathyanarayanan)
- Disconnect PF and VF ATS enablement, since ATS in PFs and
associated VFs can be enabled independently (Kuppuswamy
Sathyanarayanan)
- Cache PRI and PASID capability offsets (Kuppuswamy Sathyanarayanan)
- Cache the PRI PRG Response PASID Required bit (Bjorn Helgaas)
- Consolidate ATS declarations in linux/pci-ats.h (Krzysztof
Wilczynski)
- Remove unused PRI and PASID stubs (Bjorn Helgaas)
- Removed unnecessary EXPORT_SYMBOL_GPL() from ATS, PRI, and PASID
interfaces that are only used by built-in IOMMU drivers (Bjorn
Helgaas)
- Hide PRI and PASID state restoration functions used only inside the
PCI core (Bjorn Helgaas)
- Add a DMA alias quirk for the Intel VCA NTB (Slawomir Pawlowski)
- Serialize sysfs sriov_numvfs reads vs writes (Pierre Crégut)
- Update Cavium ACS quirk for ThunderX2 and ThunderX3 (George
Cherian)
- Fix the UPDCR register address in the Intel ACS quirk (Steffen
Liebergeld)
- Unify ACS quirk implementations (Bjorn Helgaas)
Amlogic Meson host bridge driver:
- Fix meson PERST# GPIO polarity problem (Remi Pommarel)
- Add DT bindings for Amlogic Meson G12A (Neil Armstrong)
- Fix meson clock names to match DT bindings (Neil Armstrong)
- Add meson support for Amlogic G12A SoC with separate shared PHY
(Neil Armstrong)
- Add meson extended PCIe PHY functions for Amlogic G12A USB3+PCIe
combo PHY (Neil Armstrong)
- Add arm64 DT for Amlogic G12A PCIe controller node (Neil Armstrong)
- Add commented-out description of VIM3 USB3/PCIe mux in arm64 DT
(Neil Armstrong)
Broadcom iProc host bridge driver:
- Invalidate iProc PAXB address mapping before programming it
(Abhishek Shah)
- Fix iproc-msi and mvebu __iomem annotations (Ben Dooks)
Cadence host bridge driver:
- Refactor Cadence PCIe host controller to use as a library for both
host and endpoint (Tom Joseph)
Freescale Layerscape host bridge driver:
- Add layerscape LS1028a support (Xiaowei Bao)
Intel VMD host bridge driver:
- Add VMD bus 224-255 restriction decode (Jon Derrick)
- Add VMD 8086:9A0B device ID (Jon Derrick)
- Remove Keith from VMD maintainer list (Keith Busch)
Marvell ARMADA 3700 / Aardvark host bridge driver:
- Use LTSSM state to build link training flag since Aardvark doesn't
implement the Link Training bit (Remi Pommarel)
- Delay before training Aardvark link in case PERST# was asserted
before the driver probe (Remi Pommarel)
- Fix Aardvark issues with Root Control reads and writes (Remi
Pommarel)
- Don't rely on jiffies in Aardvark config access path since
interrupts may be disabled (Remi Pommarel)
- Fix Aardvark big-endian support (Grzegorz Jaszczyk)
Marvell ARMADA 370 / XP host bridge driver:
- Make mvebu_pci_bridge_emul_ops static (Ben Dooks)
Microsoft Hyper-V host bridge driver:
- Add hibernation support for Hyper-V virtual PCI devices (Dexuan
Cui)
- Track Hyper-V pci_protocol_version per-hbus, not globally (Dexuan
Cui)
- Avoid kmemleak false positive on hv hbus buffer (Dexuan Cui)
Mobiveil host bridge driver:
- Change mobiveil csr_read()/write() function names that conflict
with riscv arch functions (Kefeng Wang)
NVIDIA Tegra host bridge driver:
- Fix Tegra CLKREQ dependency programming (Vidya Sagar)
Renesas R-Car host bridge driver:
- Remove unnecessary header include from rcar (Andrew Murray)
- Tighten register index checking for rcar inbound range programming
(Marek Vasut)
- Fix rcar inbound range alignment calculation to improve packing of
multiple entries (Marek Vasut)
- Update rcar MACCTLR setting to match documentation (Yoshihiro
Shimoda)
- Clear bit 0 of MACCTLR before PCIETCTLR.CFINIT per manual
(Yoshihiro Shimoda)
- Add Marek Vasut and Yoshihiro Shimoda as R-Car maintainers (Simon
Horman)
Rockchip host bridge driver:
- Make rockchip 0V9 and 1V8 power regulators non-optional (Robin
Murphy)
Socionext UniPhier host bridge driver:
- Set uniphier to host (RC) mode always (Kunihiko Hayashi)
Endpoint drivers:
- Fix endpoint driver sign extension problem when shifting page
number to phys_addr_t (Alan Mikhak)
Misc:
- Add NumaChip SPDX header (Krzysztof Wilczynski)
- Replace EXTRA_CFLAGS with ccflags-y (Krzysztof Wilczynski)
- Remove unused includes (Krzysztof Wilczynski)
- Removed unused sysfs attribute groups (Ben Dooks)
- Remove PTM and ASPM dependencies on PCIEPORTBUS (Bjorn Helgaas)
- Add PCIe Link Control 2 register field definitions to replace magic
numbers in AMDGPU and Radeon CIK/SI (Bjorn Helgaas)
- Fix incorrect Link Control 2 Transmit Margin usage in AMDGPU and
Radeon CIK/SI PCIe Gen3 link training (Bjorn Helgaas)
- Use pcie_capability_read_word() instead of pci_read_config_word()
in AMDGPU and Radeon CIK/SI (Frederick Lawler)
- Remove unused pci_irq_get_node() Greg Kroah-Hartman)
- Make asm/msi.h mandatory and simplify PCI_MSI_IRQ_DOMAIN Kconfig
(Palmer Dabbelt, Michal Simek)
- Read all 64 bits of Switchtec part_event_bitmap (Logan Gunthorpe)
- Fix erroneous intel-iommu dependency on CONFIG_AMD_IOMMU (Bjorn
Helgaas)
- Fix bridge emulation big-endian support (Grzegorz Jaszczyk)
- Fix dwc find_next_bit() usage (Niklas Cassel)
- Fix pcitest.c fd leak (Hewenliang)
- Fix typos and comments (Bjorn Helgaas)
- Fix Kconfig whitespace errors (Krzysztof Kozlowski)"
* tag 'pci-v5.5-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (160 commits)
PCI: Remove PCI_MSI_IRQ_DOMAIN architecture whitelist
asm-generic: Make msi.h a mandatory include/asm header
Revert "nvme: Add quirk for Kingston NVME SSD running FW E8FK11.T"
PCI/MSI: Fix incorrect MSI-X masking on resume
PCI/MSI: Move power state check out of pci_msi_supported()
PCI/MSI: Remove unused pci_irq_get_node()
PCI: hv: Avoid a kmemleak false positive caused by the hbus buffer
PCI: hv: Change pci_protocol_version to per-hbus
PCI: hv: Add hibernation support
PCI: hv: Reorganize the code in preparation of hibernation
MAINTAINERS: Remove Keith from VMD maintainer
PCI/ASPM: Remove PCIEASPM_DEBUG Kconfig option and related code
PCI/ASPM: Add sysfs attributes for controlling ASPM link states
PCI: Fix indentation
drm/radeon: Prefer pcie_capability_read_word()
drm/radeon: Replace numbers with PCI_EXP_LNKCTL2 definitions
drm/radeon: Correct Transmit Margin masks
drm/amdgpu: Prefer pcie_capability_read_word()
PCI: uniphier: Set mode register to host mode
drm/amdgpu: Replace numbers with PCI_EXP_LNKCTL2 definitions
...
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Bjorn Helgaas
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7e124c4051 |
Merge branch 'pci/trivial'
- Fix typos and comments (Bjorn Helgaas) - Fix Kconfig whitespace errors (Krzysztof Kozlowski) * pci/trivial: PCI: Fix indentation PCI: Fix typos PCI: Remove useless comments and tidy others PCI: Remove unnecessary includes # Conflicts: # drivers/pci/probe.c |
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Krzysztof Kozlowski
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36533f355b |
PCI: Fix indentation
Adjust indentation from spaces to tab (+optional two spaces) as in coding style with command like: $ sed -e 's/^ /\t/' -i */Kconfig [bhelgaas: do same in vmd.c] Link: https://lore.kernel.org/r/20191120134036.14502-1-krzk@kernel.org Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> |
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Bjorn Helgaas
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9d09e5a95c |
PCI: Fix typos
Fix typos in drivers/pci. Comment and whitespace changes only. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> |
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Mika Westerberg
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77adf93553 |
ACPI / hotplug / PCI: Allocate resources directly under the non-hotplug bridge
Valerio and others reported that commit |
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Tyrel Datwyler
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4f9f2d3d7a |
PCI: rpaphp: Correctly match ibm, my-drc-index to drc-name when using drc-info
The newer ibm,drc-info property is a condensed description of the old ibm,drc-* properties (ie. names, types, indexes, and power-domains). When matching a drc-index to a drc-name we need to verify that the index is within the start and last drc-index range and map it to a drc-name using the drc-name-prefix and logical index. Fix the mapping by checking that the index is within the range of the current drc-info entry, and build the name from the drc-name-prefix concatenated with the starting drc-name-suffix value and the sequential index obtained by subtracting ibm,my-drc-index from this entries drc-start-index. Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/1573449697-5448-10-git-send-email-tyreld@linux.ibm.com |
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Tyrel Datwyler
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0737686778 |
PCI: rpaphp: Annotate and correctly byte swap DRC properties
The device tree is in big endian format and any properties directly retrieved using OF helpers that don't explicitly byte swap should be annotated. In particular there are several places where we grab the opaque property value for the old ibm,drc-* properties and the ibm,my-drc-index property. Fix this for better static checking by annotating values we know to explicitly big endian, and byte swap where appropriate. Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/1573449697-5448-9-git-send-email-tyreld@linux.ibm.com |
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Tyrel Datwyler
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efeda8fada |
PCI: rpaphp: Add drc-info support for hotplug slot registration
Split physical PCI slot registration scanning into separate routines that support the old ibm,drc-* properties and one that supports the new compressed ibm,drc-info property. Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/1573449697-5448-7-git-send-email-tyreld@linux.ibm.com |
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Tyrel Datwyler
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52e2b0f165 |
PCI: rpaphp: Don't rely on firmware feature to imply drc-info support
In the event that the partition is migrated to a platform with older firmware that doesn't support the ibm,drc-info property the device tree is modified to remove the ibm,drc-info property and replace it with the older style ibm,drc-* properties for types, names, indexes, and power-domains. One of the requirements of the drc-info firmware feature is that the client is able to handle both the new property, and old style properties at runtime. Therefore we can't rely on the firmware feature alone to dictate which property is currently present in the device tree. Fix this short coming by checking explicitly for the ibm,drc-info property, and falling back to the older ibm,drc-* properties if it doesn't exist. Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/1573449697-5448-6-git-send-email-tyreld@linux.ibm.com |
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Tyrel Datwyler
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9723c25f99 |
PCI: rpaphp: Fix up pointer to first drc-info entry
The first entry of the ibm,drc-info property is an int encoded count of the number of drc-info entries that follow. The "value" pointer returned by of_prop_next_u32() is still pointing at the this value when we call of_read_drc_info_cell(), but the helper function expects that value to be pointing at the first element of an entry. Fix up by incrementing the "value" pointer to point at the first element of the first drc-info entry prior. Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/1573449697-5448-5-git-send-email-tyreld@linux.ibm.com |
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Mika Westerberg
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87d0f2a553 |
PCI: pciehp: Prevent deadlock on disconnect
This addresses deadlocks in these common cases in hierarchies containing
two switches:
- All involved ports are runtime suspended and they are unplugged. This
can happen easily if the drivers involved automatically enable runtime
PM (xHCI for example does that).
- System is suspended (e.g., closing the lid on a laptop) with a dock +
something else connected, and the dock is unplugged while suspended.
These cases lead to the following deadlock:
INFO: task irq/126-pciehp:198 blocked for more than 120 seconds.
irq/126-pciehp D 0 198 2 0x80000000
Call Trace:
schedule+0x2c/0x80
schedule_timeout+0x246/0x350
wait_for_completion+0xb7/0x140
kthread_stop+0x49/0x110
free_irq+0x32/0x70
pcie_shutdown_notification+0x2f/0x50
pciehp_remove+0x27/0x50
pcie_port_remove_service+0x36/0x50
device_release_driver+0x12/0x20
bus_remove_device+0xec/0x160
device_del+0x13b/0x350
device_unregister+0x1a/0x60
remove_iter+0x1e/0x30
device_for_each_child+0x56/0x90
pcie_port_device_remove+0x22/0x40
pcie_portdrv_remove+0x20/0x60
pci_device_remove+0x3e/0xc0
device_release_driver_internal+0x18c/0x250
device_release_driver+0x12/0x20
pci_stop_bus_device+0x6f/0x90
pci_stop_bus_device+0x31/0x90
pci_stop_and_remove_bus_device+0x12/0x20
pciehp_unconfigure_device+0x88/0x140
pciehp_disable_slot+0x6a/0x110
pciehp_handle_presence_or_link_change+0x263/0x400
pciehp_ist+0x1c9/0x1d0
irq_thread_fn+0x24/0x60
irq_thread+0xeb/0x190
kthread+0x120/0x140
INFO: task irq/190-pciehp:2288 blocked for more than 120 seconds.
irq/190-pciehp D 0 2288 2 0x80000000
Call Trace:
__schedule+0x2a2/0x880
schedule+0x2c/0x80
schedule_preempt_disabled+0xe/0x10
mutex_lock+0x2c/0x30
pci_lock_rescan_remove+0x15/0x20
pciehp_unconfigure_device+0x4d/0x140
pciehp_disable_slot+0x6a/0x110
pciehp_handle_presence_or_link_change+0x263/0x400
pciehp_ist+0x1c9/0x1d0
irq_thread_fn+0x24/0x60
irq_thread+0xeb/0x190
kthread+0x120/0x140
What happens here is that the whole hierarchy is runtime resumed and the
parent PCIe downstream port, which got the hot-remove event, starts
removing devices below it, taking pci_lock_rescan_remove() lock. When the
child PCIe port is runtime resumed it calls pciehp_check_presence() which
ends up calling pciehp_card_present() and pciehp_check_link_active(). Both
of these use pcie_capability_read_word(), which notices that the underlying
device is already gone and returns PCIBIOS_DEVICE_NOT_FOUND with the
capability value set to 0. When pciehp gets this value it thinks that its
child device is also hot-removed and schedules its IRQ thread to handle the
event.
The deadlock happens when the child's IRQ thread runs and tries to acquire
pci_lock_rescan_remove() which is already taken by the parent and the
parent waits for the child's IRQ thread to finish.
Prevent this from happening by checking the return value of
pcie_capability_read_word() and if it is PCIBIOS_DEVICE_NOT_FOUND stop
performing any hot-removal activities.
[bhelgaas: add common scenarios to commit log]
Link: https://lore.kernel.org/r/20191029170022.57528-2-mika.westerberg@linux.intel.com
Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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