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This is the mindless scripted replacement of kernel use of POLL*
variables as described by Al, done by this script:
for V in IN OUT PRI ERR RDNORM RDBAND WRNORM WRBAND HUP RDHUP NVAL MSG; do
L=`git grep -l -w POLL$V | grep -v '^t' | grep -v /um/ | grep -v '^sa' | grep -v '/poll.h$'|grep -v '^D'`
for f in $L; do sed -i "-es/^\([^\"]*\)\(\<POLL$V\>\)/\\1E\\2/" $f; done
done
with de-mangling cleanups yet to come.
NOTE! On almost all architectures, the EPOLL* constants have the same
values as the POLL* constants do. But they keyword here is "almost".
For various bad reasons they aren't the same, and epoll() doesn't
actually work quite correctly in some cases due to this on Sparc et al.
The next patch from Al will sort out the final differences, and we
should be all done.
Scripted-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- Update the ACPICA kernel code to upstream revision 20180105 including:
* Assorted fixes (Jung-uk Kim).
* Support for X32 ABI compilation (Anuj Mittal).
* Update of ACPICA copyrights to 2018 (Bob Moore).
- Prepare for future modifications to avoid executing the _STA control
method too early (Hans de Goede).
- Make the processor performance control library code ignore _PPC
notifications if they cannot be handled and fix up the C1 idle
state definition when it is used as a fallback state (Chen Yu,
Yazen Ghannam).
- Make it possible to use the SPCR table on x86 and to replace the
original IORT table with a new one from initrd (Prarit Bhargava,
Shunyong Yang).
- Add battery-related quirks for Asus UX360UA and UX410UAK and add
quirks for table parsing on Dell XPS 9570 and Precision M5530
(Kai Heng Feng).
- Address static checker warnings in the CPPC code (Gustavo Silva).
- Avoid printing a raw pointer to the kernel log in the smart
battery driver (Greg Kroah-Hartman).
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Merge tag 'acpi-part2-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more ACPI updates from Rafael Wysocki:
"These are mostly fixes and cleanups, a few new quirks, a couple of
updates related to the handling of ACPI tables and ACPICA copyrights
refreshment.
Specifics:
- Update the ACPICA kernel code to upstream revision 20180105
including:
* Assorted fixes (Jung-uk Kim)
* Support for X32 ABI compilation (Anuj Mittal)
* Update of ACPICA copyrights to 2018 (Bob Moore)
- Prepare for future modifications to avoid executing the _STA
control method too early (Hans de Goede)
- Make the processor performance control library code ignore _PPC
notifications if they cannot be handled and fix up the C1 idle
state definition when it is used as a fallback state (Chen Yu,
Yazen Ghannam)
- Make it possible to use the SPCR table on x86 and to replace the
original IORT table with a new one from initrd (Prarit Bhargava,
Shunyong Yang)
- Add battery-related quirks for Asus UX360UA and UX410UAK and add
quirks for table parsing on Dell XPS 9570 and Precision M5530 (Kai
Heng Feng)
- Address static checker warnings in the CPPC code (Gustavo Silva)
- Avoid printing a raw pointer to the kernel log in the smart battery
driver (Greg Kroah-Hartman)"
* tag 'acpi-part2-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: sbshc: remove raw pointer from printk() message
ACPI: SPCR: Make SPCR available to x86
ACPI / CPPC: Use 64-bit arithmetic instead of 32-bit
ACPI / tables: Add IORT to injectable table list
ACPI / bus: Parse tables as term_list for Dell XPS 9570 and Precision M5530
ACPICA: Update version to 20180105
ACPICA: All acpica: Update copyrights to 2018
ACPI / processor: Set default C1 idle state description
ACPI / battery: Add quirk for Asus UX360UA and UX410UAK
ACPI: processor_perflib: Do not send _PPC change notification if not ready
ACPI / scan: Use acpi_bus_get_status() to initialize ACPI_TYPE_DEVICE devs
ACPI / bus: Do not call _STA on battery devices with unmet dependencies
PCI: acpiphp_ibm: prepare for acpi_get_object_info() no longer returning status
ACPI: export acpi_bus_get_status_handle()
ACPICA: Add a missing pair of parentheses
ACPICA: Prefer ACPI_TO_POINTER() over ACPI_ADD_PTR()
ACPICA: Avoid NULL pointer arithmetic
ACPICA: Linux: add support for X32 ABI compilation
ACPI / video: Use true for boolean value
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Merge tag 'pci-v4.16-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
- skip AER driver error recovery callbacks for correctable errors
reported via ACPI APEI, as we already do for errors reported via the
native path (Tyler Baicar)
- fix DPC shared interrupt handling (Alex Williamson)
- print full DPC interrupt number (Keith Busch)
- enable DPC only if AER is available (Keith Busch)
- simplify DPC code (Bjorn Helgaas)
- calculate ASPM L1 substate parameter instead of hardcoding it (Bjorn
Helgaas)
- enable Latency Tolerance Reporting for ASPM L1 substates (Bjorn
Helgaas)
- move ASPM internal interfaces out of public header (Bjorn Helgaas)
- allow hot-removal of VGA devices (Mika Westerberg)
- speed up unplug and shutdown by assuming Thunderbolt controllers
don't support Command Completed events (Lukas Wunner)
- add AtomicOps support for GPU and Infiniband drivers (Felix Kuehling,
Jay Cornwall)
- expose "ari_enabled" in sysfs to help NIC naming (Stuart Hayes)
- clean up PCI DMA interface usage (Christoph Hellwig)
- remove PCI pool API (replaced with DMA pool) (Romain Perier)
- deprecate pci_get_bus_and_slot(), which assumed PCI domain 0 (Sinan
Kaya)
- move DT PCI code from drivers/of/ to drivers/pci/ (Rob Herring)
- add PCI-specific wrappers for dev_info(), etc (Frederick Lawler)
- remove warnings on sysfs mmap failure (Bjorn Helgaas)
- quiet ROM validation messages (Alex Deucher)
- remove redundant memory alloc failure messages (Markus Elfring)
- fill in types for compile-time VGA and other I/O port resources
(Bjorn Helgaas)
- make "pci=pcie_scan_all" work for Root Ports as well as Downstream
Ports to help AmigaOne X1000 (Bjorn Helgaas)
- add SPDX tags to all PCI files (Bjorn Helgaas)
- quirk Marvell 9128 DMA aliases (Alex Williamson)
- quirk broken INTx disable on Ceton InfiniTV4 (Bjorn Helgaas)
- fix CONFIG_PCI=n build by adding dummy pci_irqd_intx_xlate() (Niklas
Cassel)
- use DMA API to get MSI address for DesignWare IP (Niklas Cassel)
- fix endpoint-mode DMA mask configuration (Kishon Vijay Abraham I)
- fix ARTPEC-6 incorrect IS_ERR() usage (Wei Yongjun)
- add support for ARTPEC-7 SoC (Niklas Cassel)
- add endpoint-mode support for ARTPEC (Niklas Cassel)
- add Cadence PCIe host and endpoint controller driver (Cyrille
Pitchen)
- handle multiple INTx status bits being set in dra7xx (Vignesh R)
- translate dra7xx hwirq range to fix INTD handling (Vignesh R)
- remove deprecated Exynos PHY initialization code (Jaehoon Chung)
- fix MSI erratum workaround for HiSilicon Hip06/Hip07 (Dongdong Liu)
- fix NULL pointer dereference in iProc BCMA driver (Ray Jui)
- fix Keystone interrupt-controller-node lookup (Johan Hovold)
- constify qcom driver structures (Julia Lawall)
- rework Tegra config space mapping to increase space available for
endpoints (Vidya Sagar)
- simplify Tegra driver by using bus->sysdata (Manikanta Maddireddy)
- remove PCI_REASSIGN_ALL_BUS usage on Tegra (Manikanta Maddireddy)
- add support for Global Fabric Manager Server (GFMS) event to
Microsemi Switchtec switch driver (Logan Gunthorpe)
- add IDs for Switchtec PSX 24xG3 and PSX 48xG3 (Kelvin Cao)
* tag 'pci-v4.16-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (140 commits)
PCI: cadence: Add EndPoint Controller driver for Cadence PCIe controller
dt-bindings: PCI: cadence: Add DT bindings for Cadence PCIe endpoint controller
PCI: endpoint: Fix EPF device name to support multi-function devices
PCI: endpoint: Add the function number as argument to EPC ops
PCI: cadence: Add host driver for Cadence PCIe controller
dt-bindings: PCI: cadence: Add DT bindings for Cadence PCIe host controller
PCI: Add vendor ID for Cadence
PCI: Add generic function to probe PCI host controllers
PCI: generic: fix missing call of pci_free_resource_list()
PCI: OF: Add generic function to parse and allocate PCI resources
PCI: Regroup all PCI related entries into drivers/pci/Makefile
PCI/DPC: Reformat DPC register definitions
PCI/DPC: Add and use DPC Status register field definitions
PCI/DPC: Squash dpc_rp_pio_get_info() into dpc_process_rp_pio_error()
PCI/DPC: Remove unnecessary RP PIO register structs
PCI/DPC: Push dpc->rp_pio_status assignment into dpc_rp_pio_get_info()
PCI/DPC: Squash dpc_rp_pio_print_error() into dpc_rp_pio_get_info()
PCI/DPC: Make RP PIO log size check more generic
PCI/DPC: Rename local "status" to "dpc_status"
PCI/DPC: Squash dpc_rp_pio_print_tlp_header() into dpc_rp_pio_print_error()
...
acpi_get_object_info() is intended for early probe usage and as such should
not call any methods which may rely on OpRegions, but it used to also call
_STA to get the status, which on some systems does rely on OpRegions, this
behavior and the acpi_device_info.current_status member are being removed.
This commit prepares the acpiphp_ibm code for this by having it get the
status itself using acpi_bus_get_status_handle(). Note no error handling is
necessary on any errors acpi_bus_get_status_handle() leaves the value of
the passed in current_status at its 0 initialization value.
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Highlights:
- Enable support for memory protection keys aka "pkeys" on Power7/8/9 when
using the hash table MMU.
- Extend our interrupt soft masking to support masking PMU interrupts as well
as "normal" interrupts, and then use that to implement local_t for a ~4x
speedup vs the current atomics-based implementation.
- A new driver "ocxl" for "Open Coherent Accelerator Processor Interface
(OpenCAPI)" devices.
- Support for new device tree properties on PowerVM to describe hotpluggable
memory and devices.
- Add support for CLOCK_{REALTIME/MONOTONIC}_COARSE to the 64-bit VDSO.
- Freescale updates from Scott:
"Contains fixes for CPM GPIO and an FSL PCI erratum workaround, plus a
minor cleanup patch."
As well as quite a lot of other changes all over the place, and small fixes and
cleanups as always.
Thanks to:
Alan Modra, Alastair D'Silva, Alexey Kardashevskiy, Alistair Popple, Andreas
Schwab, Andrew Donnellan, Aneesh Kumar K.V, Anju T Sudhakar, Anshuman
Khandual, Anton Blanchard, Arnd Bergmann, Balbir Singh, Benjamin
Herrenschmidt, Bhaktipriya Shridhar, Bryant G. Ly, Cédric Le Goater,
Christophe Leroy, Christophe Lombard, Cyril Bur, David Gibson, Desnes A. Nunes
do Rosario, Dmitry Torokhov, Frederic Barrat, Geert Uytterhoeven, Guilherme G.
Piccoli, Gustavo A. R. Silva, Gustavo Romero, Ivan Mikhaylov, Joakim
Tjernlund, Joe Perches, Josh Poimboeuf, Juan J. Alvarez, Julia Cartwright,
Kamalesh Babulal, Madhavan Srinivasan, Mahesh Salgaonkar, Mathieu Malaterre,
Michael Bringmann, Michael Hanselmann, Michael Neuling, Nathan Fontenot,
Naveen N. Rao, Nicholas Piggin, Paul Mackerras, Philippe Bergheaud, Ram Pai,
Russell Currey, Santosh Sivaraj, Scott Wood, Seth Forshee, Simon Guo, Stewart
Smith, Sukadev Bhattiprolu, Thiago Jung Bauermann, Vaibhav Jain, Vasyl
Gomonovych.
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Merge tag 'powerpc-4.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
"Highlights:
- Enable support for memory protection keys aka "pkeys" on Power7/8/9
when using the hash table MMU.
- Extend our interrupt soft masking to support masking PMU interrupts
as well as "normal" interrupts, and then use that to implement
local_t for a ~4x speedup vs the current atomics-based
implementation.
- A new driver "ocxl" for "Open Coherent Accelerator Processor
Interface (OpenCAPI)" devices.
- Support for new device tree properties on PowerVM to describe
hotpluggable memory and devices.
- Add support for CLOCK_{REALTIME/MONOTONIC}_COARSE to the 64-bit
VDSO.
- Freescale updates from Scott: fixes for CPM GPIO and an FSL PCI
erratum workaround, plus a minor cleanup patch.
As well as quite a lot of other changes all over the place, and small
fixes and cleanups as always.
Thanks to: Alan Modra, Alastair D'Silva, Alexey Kardashevskiy,
Alistair Popple, Andreas Schwab, Andrew Donnellan, Aneesh Kumar K.V,
Anju T Sudhakar, Anshuman Khandual, Anton Blanchard, Arnd Bergmann,
Balbir Singh, Benjamin Herrenschmidt, Bhaktipriya Shridhar, Bryant G.
Ly, Cédric Le Goater, Christophe Leroy, Christophe Lombard, Cyril Bur,
David Gibson, Desnes A. Nunes do Rosario, Dmitry Torokhov, Frederic
Barrat, Geert Uytterhoeven, Guilherme G. Piccoli, Gustavo A. R. Silva,
Gustavo Romero, Ivan Mikhaylov, Joakim Tjernlund, Joe Perches, Josh
Poimboeuf, Juan J. Alvarez, Julia Cartwright, Kamalesh Babulal,
Madhavan Srinivasan, Mahesh Salgaonkar, Mathieu Malaterre, Michael
Bringmann, Michael Hanselmann, Michael Neuling, Nathan Fontenot,
Naveen N. Rao, Nicholas Piggin, Paul Mackerras, Philippe Bergheaud,
Ram Pai, Russell Currey, Santosh Sivaraj, Scott Wood, Seth Forshee,
Simon Guo, Stewart Smith, Sukadev Bhattiprolu, Thiago Jung Bauermann,
Vaibhav Jain, Vasyl Gomonovych"
* tag 'powerpc-4.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (199 commits)
powerpc/mm/radix: Fix build error when RADIX_MMU=n
macintosh/ams-input: Use true and false for boolean values
macintosh: change some data types from int to bool
powerpc/watchdog: Print the NIP in soft_nmi_interrupt()
powerpc/watchdog: regs can't be null in soft_nmi_interrupt()
powerpc/watchdog: Tweak watchdog printks
powerpc/cell: Remove axonram driver
rtc-opal: Fix handling of firmware error codes, prevent busy loops
powerpc/mpc52xx_gpt: make use of raw_spinlock variants
macintosh/adb: Properly mark continued kernel messages
powerpc/pseries: Fix cpu hotplug crash with memoryless nodes
powerpc/numa: Ensure nodes initialized for hotplug
powerpc/numa: Use ibm,max-associativity-domains to discover possible nodes
powerpc/kernel: Block interrupts when updating TIDR
powerpc/powernv/idoa: Remove unnecessary pcidev from pci_dn
powerpc/mm/nohash: do not flush the entire mm when range is a single page
powerpc/pseries: Add Initialization of VF Bars
powerpc/pseries/pci: Associate PEs to VFs in configure SR-IOV
powerpc/eeh: Add EEH notify resume sysfs
powerpc/eeh: Add EEH operations to notify resume
...
* pci/spdx:
PCI: Add SPDX GPL-2.0+ to replace implicit GPL v2 or later statement
PCI: Add SPDX GPL-2.0+ to replace GPL v2 or later boilerplate
PCI: Add SPDX GPL-2.0 to replace COPYING boilerplate
PCI: Add SPDX GPL-2.0 to replace GPL v2 boilerplate
PCI: Add SPDX GPL-2.0 when no license was specified
* lorenzo/pci/tegra:
PCI: tegra: Use bus->sysdata to store and get host private data
of: Export of_pci_range_to_resource()
PCI: tegra: Refactor configuration space mapping code
* lorenzo/pci/dwc:
PCI: exynos: Fix a potential init_clk_resources NULL pointer dereference
PCI: iproc: Fix NULL pointer dereference for BCMA
PCI: dra7xx: Iterate over INTx status bits
PCI: dra7xx: Fix legacy INTD IRQ handling
PCI: qcom: Account for const type of of_device_id.data
PCI: dwc: artpec6: Fix return value check in artpec6_add_pcie_ep()
PCI: exynos: Remove deprecated PHY initialization code
PCI: dwc: artpec6: Add support for the ARTPEC-7 SoC
bindings: PCI: artpec: Add support for the ARTPEC-7 SoC
PCI: dwc: artpec6: Deassert the core before waiting for PHY
PCI: dwc: Make cpu_addr_fixup take struct dw_pcie as argument
PCI: dwc: artpec6: Add support for endpoint mode
bindings: PCI: artpec: Add support for endpoint mode
PCI: dwc: artpec6: Split artpec6_pcie_establish_link() into smaller functions
PCI: dwc: artpec6: Use BIT and GENMASK macros
PCI: dwc: artpec6: Remove unused defines
PCI: dwc: dra7xx: Help compiler to remove unused code
PCI: dwc: dra7xx: Assign pp->ops in dra7xx_add_pcie_port() rather than in probe
PCI: dwc: dra7xx: Refactor Kconfig and Makefile handling for host/ep mode
PCI: designware-ep: Add generic function for raising MSI irq
PCI: designware-ep: Remove static keyword from dw_pcie_ep_reset_bar()
PCI: designware-ep: Pre-allocate memory for MSI in dw_pcie_ep_init
PCI: designware-ep: Read-only registers need DBI_RO_WR_EN to be writable
PCI: designware-ep: dw_pcie_ep_set_msi() should only set MMC bits
PCI: dwc: Use the DMA-API to get the MSI address
pci: dwc: pci-dra7xx: Make shutdown handler static
Includes resolution to conflict between:
4494738de0 ("PCI: endpoint: Add the function number as argument to EPC ops")
6f6d787371 ("PCI: designware-ep: Add generic function for raising MSI irq")
The resolution is due to Niklas Cassel <niklas.cassel@axis.com>:
https://lkml.kernel.org/r/20180201085608.GA22568@axis.com
Pull networking updates from David Miller:
1) Significantly shrink the core networking routing structures. Result
of http://vger.kernel.org/~davem/seoul2017_netdev_keynote.pdf
2) Add netdevsim driver for testing various offloads, from Jakub
Kicinski.
3) Support cross-chip FDB operations in DSA, from Vivien Didelot.
4) Add a 2nd listener hash table for TCP, similar to what was done for
UDP. From Martin KaFai Lau.
5) Add eBPF based queue selection to tun, from Jason Wang.
6) Lockless qdisc support, from John Fastabend.
7) SCTP stream interleave support, from Xin Long.
8) Smoother TCP receive autotuning, from Eric Dumazet.
9) Lots of erspan tunneling enhancements, from William Tu.
10) Add true function call support to BPF, from Alexei Starovoitov.
11) Add explicit support for GRO HW offloading, from Michael Chan.
12) Support extack generation in more netlink subsystems. From Alexander
Aring, Quentin Monnet, and Jakub Kicinski.
13) Add 1000BaseX, flow control, and EEE support to mvneta driver. From
Russell King.
14) Add flow table abstraction to netfilter, from Pablo Neira Ayuso.
15) Many improvements and simplifications to the NFP driver bpf JIT,
from Jakub Kicinski.
16) Support for ipv6 non-equal cost multipath routing, from Ido
Schimmel.
17) Add resource abstration to devlink, from Arkadi Sharshevsky.
18) Packet scheduler classifier shared filter block support, from Jiri
Pirko.
19) Avoid locking in act_csum, from Davide Caratti.
20) devinet_ioctl() simplifications from Al viro.
21) More TCP bpf improvements from Lawrence Brakmo.
22) Add support for onlink ipv6 route flag, similar to ipv4, from David
Ahern.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1925 commits)
tls: Add support for encryption using async offload accelerator
ip6mr: fix stale iterator
net/sched: kconfig: Remove blank help texts
openvswitch: meter: Use 64-bit arithmetic instead of 32-bit
tcp_nv: fix potential integer overflow in tcpnv_acked
r8169: fix RTL8168EP take too long to complete driver initialization.
qmi_wwan: Add support for Quectel EP06
rtnetlink: enable IFLA_IF_NETNSID for RTM_NEWLINK
ipmr: Fix ptrdiff_t print formatting
ibmvnic: Wait for device response when changing MAC
qlcnic: fix deadlock bug
tcp: release sk_frag.page in tcp_disconnect
ipv4: Get the address of interface correctly.
net_sched: gen_estimator: fix lockdep splat
net: macb: Handle HRESP error
net/mlx5e: IPoIB, Fix copy-paste bug in flow steering refactoring
ipv6: addrconf: break critical section in addrconf_verify_rtnl()
ipv6: change route cache aging logic
i40e/i40evf: Update DESC_NEEDED value to reflect larger value
bnxt_en: cleanup DIM work on device shutdown
...
* lorenzo/pci/cadence:
PCI: cadence: Add EndPoint Controller driver for Cadence PCIe controller
dt-bindings: PCI: cadence: Add DT bindings for Cadence PCIe endpoint controller
PCI: endpoint: Fix EPF device name to support multi-function devices
PCI: endpoint: Add the function number as argument to EPC ops
PCI: cadence: Add host driver for Cadence PCIe controller
dt-bindings: PCI: cadence: Add DT bindings for Cadence PCIe host controller
PCI: Add vendor ID for Cadence
PCI: Add generic function to probe PCI host controllers
PCI: generic: fix missing call of pci_free_resource_list()
PCI: OF: Add generic function to parse and allocate PCI resources
PCI: Regroup all PCI related entries into drivers/pci/Makefile
Conflicts:
drivers/pci/of.c
include/linux/pci.h
* pci/virtualization:
PCI: Expose ari_enabled in sysfs
PCI: Add function 1 DMA alias quirk for Marvell 9128
PCI: Mark Ceton InfiniTV4 INTx masking as broken
xen/pci: Use acpi_noirq_set() helper to avoid #ifdef
* pci/resource:
PCI: tegra: Remove PCI_REASSIGN_ALL_BUS use on Tegra
resource: Set type when reserving new regions
resource: Set type of "reserve=" user-specified resources
irqchip/i8259: Set I/O port resource types correctly
powerpc: Set I/O port resource types correctly
MIPS: Set I/O port resource types correctly
vgacon: Set VGA struct resource types
PCI: Use dev_info() rather than dev_err() for ROM validation
PCI: Remove PCI_REASSIGN_ALL_RSRC use on arm and arm64
PCI: Remove sysfs resource mmap warning
Conflicts:
drivers/pci/rom.c
* pci/misc:
PCI: Add dummy pci_irqd_intx_xlate() for CONFIG_PCI=n build
PCI: Add wrappers for dev_printk()
PCI: Remove unnecessary messages for memory allocation failures
PCI: Add #defines for Completion Timeout Disable feature
hinic: Replace PCI pool old API
net: e100: Replace PCI pool old API
block: DAC960: Replace PCI pool old API
MAINTAINERS: Include more PCI files
PCI: Remove unneeded kallsyms include
powerpc/pci: Unroll two pass loop when scanning bridges
powerpc/pci: Use for_each_pci_bridge() helper
* pci/enumeration:
RDMA/qedr: Use pci_enable_atomic_ops_to_root()
PCI: Add pci_enable_atomic_ops_to_root()
PCI: Make PCI_SCAN_ALL_PCIE_DEVS work for Root as well as Downstream Ports
* pci/dpc:
PCI/DPC: Reformat DPC register definitions
PCI/DPC: Add and use DPC Status register field definitions
PCI/DPC: Squash dpc_rp_pio_get_info() into dpc_process_rp_pio_error()
PCI/DPC: Remove unnecessary RP PIO register structs
PCI/DPC: Push dpc->rp_pio_status assignment into dpc_rp_pio_get_info()
PCI/DPC: Squash dpc_rp_pio_print_error() into dpc_rp_pio_get_info()
PCI/DPC: Make RP PIO log size check more generic
PCI/DPC: Rename local "status" to "dpc_status"
PCI/DPC: Squash dpc_rp_pio_print_tlp_header() into dpc_rp_pio_print_error()
PCI/DPC: Process RP PIO details only if RP PIO extensions supported
PCI/DPC: Read RP PIO Log Size once at probe
PCI/DPC: Rename struct dpc_dev.rp to rp_extensions
PCI/DPC: Add local variable for DPC capability offset
PCI/DPC: Rename interrupt_event_handler() to dpc_work()
PCI/DPC: Fix interrupt message number print
PCI/DPC: Enable DPC only if AER is available
PCI/DPC: Fix shared interrupt handling
This patch adds support to the Cadence PCIe controller in endpoint mode.
Since pieces of source code are shared with the host driver (Root
Complex mode), we create a new directory under drivers/pci dedicated to
the Cadence PCIe controller. The common code is placed into
drivers/pci/cadence/pcie-cadence.c and used by both the host and
endpoint controller drivers.
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@free-electrons.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Fix the pci_epf_make() function so it can now bind many EPF devices to the
same EPF driver.
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@free-electrons.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
This patch updates the prototype of most handlers from 'struct
pci_epc_ops' so the EPC library can now support multi-function devices.
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@free-electrons.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
This patch adds support to the Cadence PCIe controller in host mode.
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@free-electrons.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
This patchs moves generic source code from
drivers/pci/host/pci-host-common.c into drivers/pci/probe.c.
Indeed the extracted lines of code were duplicated by many host
controller drivers. Regrouping them into a generic function gives a
change to properly share this code without introducing a useless
dependency to PCI_HOST_COMMON, which selects PCI_ECAM when not needed by
most host controller drivers.
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@free-electrons.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Call pci_free_resource_list() from pci_host_common_probe() when probing
fails, as done inside gen_pci_init() when this later function fails.
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@free-electrons.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
The patch moves the gen_pci_parse_request_of_pci_ranges() function from
drivers/pci/host/pci-host-common.c into drivers/pci/of.c to easily share
common source code between PCI host drivers.
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@free-electrons.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Clean up drivers/Makefile by moving the pci/endpoint and pci/dwc entries
from drivers/Makefile into drivers/pci/Makefile.
Since we don't want to introduce any dependency between CONFIG_PCI and
CONFIG_PCI_ENDPOINT, we now always execute drivers/pci/Makefile.
Hence all Makefiles in drivers/pci/ were updated accordingly so no file is
compiled when CONFIG_PCI is not defined.
Also, we add a comment to reinforce that EPC and EPF libraries must be
initialized before their users. Hence built-in EPC drivers, such as
those of Designware, are linked after the endpoint core libraries.
Finally, we add another comment to explain why obj-y has been chosen
instead of obj-$(CONFIG_PCIE_DW) to parse the dwc/ sub-folder.
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@free-electrons.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Pull poll annotations from Al Viro:
"This introduces a __bitwise type for POLL### bitmap, and propagates
the annotations through the tree. Most of that stuff is as simple as
'make ->poll() instances return __poll_t and do the same to local
variables used to hold the future return value'.
Some of the obvious brainos found in process are fixed (e.g. POLLIN
misspelled as POLL_IN). At that point the amount of sparse warnings is
low and most of them are for genuine bugs - e.g. ->poll() instance
deciding to return -EINVAL instead of a bitmap. I hadn't touched those
in this series - it's large enough as it is.
Another problem it has caught was eventpoll() ABI mess; select.c and
eventpoll.c assumed that corresponding POLL### and EPOLL### were
equal. That's true for some, but not all of them - EPOLL### are
arch-independent, but POLL### are not.
The last commit in this series separates userland POLL### values from
the (now arch-independent) kernel-side ones, converting between them
in the few places where they are copied to/from userland. AFAICS, this
is the least disruptive fix preserving poll(2) ABI and making epoll()
work on all architectures.
As it is, it's simply broken on sparc - try to give it EPOLLWRNORM and
it will trigger only on what would've triggered EPOLLWRBAND on other
architectures. EPOLLWRBAND and EPOLLRDHUP, OTOH, are never triggered
at all on sparc. With this patch they should work consistently on all
architectures"
* 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (37 commits)
make kernel-side POLL... arch-independent
eventpoll: no need to mask the result of epi_item_poll() again
eventpoll: constify struct epoll_event pointers
debugging printk in sg_poll() uses %x to print POLL... bitmap
annotate poll(2) guts
9p: untangle ->poll() mess
->si_band gets POLL... bitmap stored into a user-visible long field
ring_buffer_poll_wait() return value used as return value of ->poll()
the rest of drivers/*: annotate ->poll() instances
media: annotate ->poll() instances
fs: annotate ->poll() instances
ipc, kernel, mm: annotate ->poll() instances
net: annotate ->poll() instances
apparmor: annotate ->poll() instances
tomoyo: annotate ->poll() instances
sound: annotate ->poll() instances
acpi: annotate ->poll() instances
crypto: annotate ->poll() instances
block: annotate ->poll() instances
x86: annotate ->poll() instances
...
Add definitions for DPC Status register fields and use them in the code.
No functional change intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sinan Kaya <okaya@codeaurora.org>
dpc_process_rp_pio_error() only calls dpc_rp_pio_get_info(), so squash them
together. No functional change intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sinan Kaya <okaya@codeaurora.org>
We read and immediately print the RP PIO log registers. We don't save
them, so there's no need to define structs for them. Remove the structs
and read the registers into local variables instead. No functional change
intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sinan Kaya <okaya@codeaurora.org>
Move the dpc->rp_pio_status assignment into dpc_rp_pio_get_info() since
that's where we read rp_pio->status anway. No functional change intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sinan Kaya <okaya@codeaurora.org>
Separating dpc_rp_pio_print_error() doesn't really provide any useful
abstraction, so squash it into its caller, dpc_rp_pio_get_info(). No
functional change intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sinan Kaya <okaya@codeaurora.org>
In dpc_probe(), we set dpc->rp_log_size to zero if we think the hardware
reports an invalid size. In this case, we could have dpc->rp_extensions
set but dpc->rp_log_size == 0, and we should print the basic RP PIO
registers but not the variable-size portion. We already checked for
dpc->rp_log_size < 4 above, so this patch is just for consistency of style.
No functional change intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sinan Kaya <okaya@codeaurora.org>
In dpc_rp_pio_get_info() rename the local "status" variable to
"dpc_status". This is to make room for another variable named "status" in
a subsequent patch. No functional change intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sinan Kaya <okaya@codeaurora.org>
Separating dpc_rp_pio_print_tlp_header() doesn't really provide any useful
abstraction, so squash it into its caller, dpc_rp_pio_print_error(). No
functional change intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sinan Kaya <okaya@codeaurora.org>
The RP PIO registers (status, mask, severity, etc) are only implemented if
the "RP Extensions for DPC" bit is set in the DPC Capabilities register.
Previously we called dpc_process_rp_pio_error(), which reads and decodes
those RP PIO registers, whenever the DPC Status register indicated an "RP
PIO error" (Trigger Reason == 3 and Trigger Reason Extension == 0).
It does seem reasonable to assume that DPC Status would only indicate an RP
PIO error if the RP extensions are supported, but PCIe r4.0, sec 7.9.15.4,
is actually not explicit about that: it does not say "Trigger Reason
Extension == 0 is valid only for Root Ports that support RP Extensions for
DPC."
Check whether the RP Extensions for DPC are supported before trying to read
the RP PIO registers.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sinan Kaya <okaya@codeaurora.org>
The RP PIO Log Size is a read-only field in the DPC Capability, so it is
constant and known at probe-time, but previously we read it every time we
processed an RP PIO error.
Read it once in dpc_probe() (if the RP Extensions for DPC are supported)
and remember the size in struct dpc_dev. No functional change intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sinan Kaya <okaya@codeaurora.org>
"rp" is ambiguous: it might mean "this DPC device is a Root Port." But in
fact, it means "this DPC device is a Root Port *and* it supports a set of
DPC Extensions."
Rename "rp" to "rp_extensions" to make this more clear. No functional
change intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sinan Kaya <okaya@codeaurora.org>
Add a local variable for DPC capability offset and replace repeated use of
"dpc->cap_pos" with simply "cap". No functional change intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sinan Kaya <okaya@codeaurora.org>
7441b0627e ("s390/pci: PCI hotplug support via SCLP") added
s390_pci_hpc.c, which included this license information:
+MODULE_LICENSE("GPL");
Based on "git show 7441b0627e22:include/linux/module.h", that "GPL" string
means "GPL v2 or later":
* "GPL" [GNU Public License v2 or later]
0729dcf248 ("s390: hotplug: make pci_hpc explicitly non-modular")
subsequently replaced the MODULE_LICENSE() with a "License: GPL" comment.
Add SPDX GPL-2.0+ and remove the "License: GPL" comment, relying on the
assertion in b24413180f ("License cleanup: add SPDX GPL-2.0 license
identifier to files with no license") that the SPDX identifier may be used
instead of the full boilerplate text.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Add SPDX GPL-2.0+ to all PCI files that specified the GPL and allowed
either GPL version 2 or any later version.
Remove the boilerplate GPL version 2 or later language, relying on the
assertion in b24413180f ("License cleanup: add SPDX GPL-2.0 license
identifier to files with no license") that the SPDX identifier may be used
instead of the full boilerplate text.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add SPDX GPL-2.0 to all PCI files that referred to the kernel default
"COPYING" file, which specifies GPL version 2.
Remove the boilerplate language referring to the GPL and "COPYING", relying
on the assertion in b24413180f ("License cleanup: add SPDX GPL-2.0
license identifier to files with no license") that the SPDX identifier may
be used instead of the full boilerplate text.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
