PCI: Turn pcibios_penalize_isa_irq() into a weak function

pcibios_penalize_isa_irq() is only implemented by x86 now, and legacy ISA
is not used by some architectures. Make pcibios_penalize_isa_irq(

PCI: Turn pcibios_penalize_isa_irq() into a weak function

pcibios_penalize_isa_irq() is only implemented by x86 now, and legacy ISA
is not used by some architectures. Make pcibios_penalize_isa_irq() a
__weak function to simplify the code. This removes the need for new
platforms to add stub implementations of pcibios_penalize_isa_irq().

[bhelgaas: changelog, comments]
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>

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microblaze/pci: Drop PowerPC-ism from irq parsing

The Microblaze PCI code copied the PowerPC irq handling, but powerpc
needs to handle broken device trees that are not present on Microblaze.
This pa

microblaze/pci: Drop PowerPC-ism from irq parsing

The Microblaze PCI code copied the PowerPC irq handling, but powerpc
needs to handle broken device trees that are not present on Microblaze.
This patch removes the powerpc special case and replaces it with a
direct of_irq_parse_and_map_pci() call.

Signed-off-by: Grant Likely <grant.likely@linaro.org>
Acked-by: Michal Simek <monstr@monstr.eu>

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microblaze: pci: Remove duplicated header

Remove duplicated header.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

microblaze: Added more support for PCI

In order to use an off the shelf nic, like the intel pro card,
changes are needed to support pci dma interfaces and other
small changes.

Signed-off-by: John L

microblaze: Added more support for PCI

In order to use an off the shelf nic, like the intel pro card,
changes are needed to support pci dma interfaces and other
small changes.

Signed-off-by: John Linn <john.linn@xilinx.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>

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PCI: collapse pcibios_resource_to_bus

Everybody uses the generic pcibios_resource_to_bus() supplied by the core
now, so remove the ARCH_HAS_GENERIC_PCI_OFFSETS used during conversion.

Signed-off-by

PCI: collapse pcibios_resource_to_bus

Everybody uses the generic pcibios_resource_to_bus() supplied by the core
now, so remove the ARCH_HAS_GENERIC_PCI_OFFSETS used during conversion.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

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microblaze/PCI: get rid of device resource fixups

Tell the PCI core about host bridge address translation so it can take
care of bus-to-resource conversion for us.

CC: Michal Simek <monstr@monstr.e

microblaze/PCI: get rid of device resource fixups

Tell the PCI core about host bridge address translation so it can take
care of bus-to-resource conversion for us.

CC: Michal Simek <monstr@monstr.eu>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

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PCI: MicroBlaze: convert pcibios_set_master() to a non-inlined function

This patch converts MicroBlaze's architecture-specific
'pcibios_set_master()' routine to a non-inlined function. This will
al

PCI: MicroBlaze: convert pcibios_set_master() to a non-inlined function

This patch converts MicroBlaze's architecture-specific
'pcibios_set_master()' routine to a non-inlined function. This will
allow follow on patches to create a generic 'pcibios_set_master()'
function using the '__weak' attribute which can be used by all
architectures as a default which, if necessary, can then be over-
ridden by architecture-specific code.

Converting 'pci_bios_set_master()' to a non-inlined function will
allow MicroBlaze's 'pcibios_set_master()' implementation to remain
architecture-specific after the generic version is introduced and thus,
not change current behavior.

No functional change.

Signed-off-by: Myron Stowe <myron.stowe@redhat.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

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microblaze/pci: Remove powermac originated cruft

The whole business with re-assigning all bus numbers, creating
an OF bus "map" etc... is ancient powermac stuff that you really
don't care about on m

microblaze/pci: Remove powermac originated cruft

The whole business with re-assigning all bus numbers, creating
an OF bus "map" etc... is ancient powermac stuff that you really
don't care about on microblaze.

Similarly pci_device_from_OF_node() is unused and by getting rid
of it we can get rid of a whole lot of code otherwise unused on
this architecture

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Michal Simek <monstr@monstr.eu>

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Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>

microblaze: use asm-generic/pci-dma-compat.h

Use asm-generic/pci-dma-compat.h instead of the homegrown
pci_set_dma_mask and pci_set_consistent_dma_mask.

Signed-off-by: FUJITA Tomonori <fujita.tomon

microblaze: use asm-generic/pci-dma-compat.h

Use asm-generic/pci-dma-compat.h instead of the homegrown
pci_set_dma_mask and pci_set_consistent_dma_mask.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>

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microblaze: pci-dma: use include/linux/dma-mapping.h

Based on af407c6db16aa9ca63559076dbe620220a822580
and f41b177157718abe9a93868bb76e47d4a6f3681d

Signed-off-by: Michal Simek <monstr@monstr.eu>

microblaze: Add support for Xilinx PCI host bridge

This patch is based on powerpc patch
64f16502475ddf663169369fffff6da9b10ea9fb

We did some cleanups and removed powerpc parts.
There is one new deb

microblaze: Add support for Xilinx PCI host bridge

This patch is based on powerpc patch
64f16502475ddf663169369fffff6da9b10ea9fb

We did some cleanups and removed powerpc parts.
There is one new debug early listing function too.

Exclude function is only in Debug options.

We tested in on custom board.

Signed-off-by: Michal Simek <monstr@monstr.eu>

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microblaze: Add pci.h

Add pci.h for microblaze. It is based on powerpc pci.h

Signed-off-by: Michal Simek <monstr@monstr.eu>

microblaze: convert all simple headers to use asm-generic

All the simple microblaze header files were adapted to use their
asm-generic implementations. These files are more simple and were quite
str

microblaze: convert all simple headers to use asm-generic

All the simple microblaze header files were adapted to use their
asm-generic implementations. These files are more simple and were quite
straightforward to change.

fb.h, vga.h and parport.h previously did not exist, using
the generic version makes it possible to build more drivers
successfully in allyesonfig.

Signed-off-by: Remis Lima Baima <remis.developer@googlemail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Michal Simek <monstr@monstr.eu>

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microblaze_v8: pci headers

Reviewed-by: Ingo Molnar <mingo@elte.hu>
Acked-by: John Linn <john.linn@xilinx.com>
Acked-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com>
Acked-by: John William

microblaze_v8: pci headers

Reviewed-by: Ingo Molnar <mingo@elte.hu>
Acked-by: John Linn <john.linn@xilinx.com>
Acked-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com>
Acked-by: John Williams <john.williams@petalogix.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>

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PCI: Convert pci_resource_to_user() to a weak function

Convert pci_resource_to_user() to a weak function so the existing
architecture-specific implementations will automatically override

PCI: Convert pci_resource_to_user() to a weak function

Convert pci_resource_to_user() to a weak function so the existing
architecture-specific implementations will automatically override the
generic one. This allows us to remove HAVE_ARCH_PCI_RESOURCE_TO_USER
definitions and avoid the conditional compilation for this single function.

Link: https://lore.kernel.org/r/20190729101401.28068-1-efremov@linux.com
Link: https://lore.kernel.org/r/20190729101401.28068-2-efremov@linux.com
Link: https://lore.kernel.org/r/20190729101401.28068-3-efremov@linux.com
Link: https://lore.kernel.org/r/20190729101401.28068-4-efremov@linux.com
Link: https://lore.kernel.org/r/20190729101401.28068-5-efremov@linux.com
Link: https://lore.kernel.org/r/20190729101401.28068-6-efremov@linux.com
Signed-off-by: Denis Efremov <efremov@linux.com>
[bhelgaas: squash into one commit]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Paul Burton <paul.burton@mips.com> # MIPS

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treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

Based on 1 normalized pattern(s):

this program is free software you can redistribute it and or modify
it u

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

Based on 1 normalized pattern(s):

this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation either version 2 of the license or at
your option any later version

extracted by the scancode license scanner the SPDX license identifier

GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 3029 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Merge tag 'pci-v4.18-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:

- unify AER decoding for native and ACPI CPER sourc

Merge tag 'pci-v4.18-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:

- unify AER decoding for native and ACPI CPER sources (Alexandru
Gagniuc)

- add TLP header info to AER tracepoint (Thomas Tai)

- add generic pcie_wait_for_link() interface (Oza Pawandeep)

- handle AER ERR_FATAL by removing and re-enumerating devices, as
Downstream Port Containment does (Oza Pawandeep)

- factor out common code between AER and DPC recovery (Oza Pawandeep)

- stop triggering DPC for ERR_NONFATAL errors (Oza Pawandeep)

- share ERR_FATAL recovery path between AER and DPC (Oza Pawandeep)

- disable ASPM L1.2 substate if we don't have LTR (Bjorn Helgaas)

- respect platform ownership of LTR (Bjorn Helgaas)

- clear interrupt status in top half to avoid interrupt storm (Oza
Pawandeep)

- neaten pci=earlydump output (Andy Shevchenko)

- avoid errors when extended config space inaccessible (Gilles Buloz)

- prevent sysfs disable of device while driver attached (Christoph
Hellwig)

- use core interface to report PCIe link properties in bnx2x, bnxt_en,
cxgb4, ixgbe (Bjorn Helgaas)

- remove unused pcie_get_minimum_link() (Bjorn Helgaas)

- fix use-before-set error in ibmphp (Dan Carpenter)

- fix pciehp timeouts caused by Command Completed errata (Bjorn
Helgaas)

- fix refcounting in pnv_php hotplug (Julia Lawall)

- clear pciehp Presence Detect and Data Link Layer Status Changed on
resume so we don't miss hotplug events (Mika Westerberg)

- only request pciehp control if we support it, so platform can use
ACPI hotplug otherwise (Mika Westerberg)

- convert SHPC to be builtin only (Mika Westerberg)

- request SHPC control via _OSC if we support it (Mika Westerberg)

- simplify SHPC handoff from firmware (Mika Westerberg)

- fix an SHPC quirk that mistakenly included *all* AMD bridges as well
as devices from any vendor with device ID 0x7458 (Bjorn Helgaas)

- assign a bus number even to non-native hotplug bridges to leave
space for acpiphp additions, to fix a common Thunderbolt xHCI
hot-add failure (Mika Westerberg)

- keep acpiphp from scanning native hotplug bridges, to fix common
Thunderbolt hot-add failures (Mika Westerberg)

- improve "partially hidden behind bridge" messages from core (Mika
Westerberg)

- add macros for PCIe Link Control 2 register (Frederick Lawler)

- replace IB/hfi1 custom macros with PCI core versions (Frederick
Lawler)

- remove dead microblaze and xtensa code (Bjorn Helgaas)

- use dev_printk() when possible in xtensa and mips (Bjorn Helgaas)

- remove unused pcie_port_acpi_setup() and portdrv_acpi.c (Bjorn
Helgaas)

- add managed interface to get PCI host bridge resources from OF (Jan
Kiszka)

- add support for unbinding generic PCI host controller (Jan Kiszka)

- fix memory leaks when unbinding generic PCI host controller (Jan
Kiszka)

- request legacy VGA framebuffer only for VGA devices to avoid false
device conflicts (Bjorn Helgaas)

- turn on PCI_COMMAND_IO & PCI_COMMAND_MEMORY in pci_enable_device()
like everybody else, not in pcibios_fixup_bus() (Bjorn Helgaas)

- add generic enable function for simple SR-IOV hardware (Alexander
Duyck)

- use generic SR-IOV enable for ena, nvme (Alexander Duyck)

- add ACS quirk for Intel 7th & 8th Gen mobile (Alex Williamson)

- add ACS quirk for Intel 300 series (Mika Westerberg)

- enable register clock for Armada 7K/8K (Gregory CLEMENT)

- reduce Keystone "link already up" log level (Fabio Estevam)

- move private DT functions to drivers/pci/ (Rob Herring)

- factor out dwc CONFIG_PCI Kconfig dependencies (Rob Herring)

- add DesignWare support to the endpoint test driver (Gustavo
Pimentel)

- add DesignWare support for endpoint mode (Gustavo Pimentel)

- use devm_ioremap_resource() instead of devm_ioremap() in dra7xx and
artpec6 (Gustavo Pimentel)

- fix Qualcomm bitwise NOT issue (Dan Carpenter)

- add Qualcomm runtime PM support (Srinivas Kandagatla)

- fix DesignWare enumeration below bridges (Koen Vandeputte)

- use usleep() instead of mdelay() in endpoint test (Jia-Ju Bai)

- add configfs entries for pci_epf_driver device IDs (Kishon Vijay
Abraham I)

- clean up pci_endpoint_test driver (Gustavo Pimentel)

- update Layerscape maintainer email addresses (Minghuan Lian)

- add COMPILE_TEST to improve build test coverage (Rob Herring)

- fix Hyper-V bus registration failure caused by domain/serial number
confusion (Sridhar Pitchai)

- improve Hyper-V refcounting and coding style (Stephen Hemminger)

- avoid potential Hyper-V hang waiting for a response that will never
come (Dexuan Cui)

- implement Mediatek chained IRQ handling (Honghui Zhang)

- fix vendor ID & class type for Mediatek MT7622 (Honghui Zhang)

- add Mobiveil PCIe host controller driver (Subrahmanya Lingappa)

- add Mobiveil MSI support (Subrahmanya Lingappa)

- clean up clocks, MSI, IRQ mappings in R-Car probe failure paths
(Marek Vasut)

- poll more frequently (5us vs 5ms) while waiting for R-Car data link
active (Marek Vasut)

- use generic OF parsing interface in R-Car (Vladimir Zapolskiy)

- add R-Car V3H (R8A77980) "compatible" string (Sergei Shtylyov)

- add R-Car gen3 PHY support (Sergei Shtylyov)

- improve R-Car PHYRDY polling (Sergei Shtylyov)

- clean up R-Car macros (Marek Vasut)

- use runtime PM for R-Car controller clock (Dien Pham)

- update arm64 defconfig for Rockchip (Shawn Lin)

- refactor Rockchip code to facilitate both root port and endpoint
mode (Shawn Lin)

- add Rockchip endpoint mode driver (Shawn Lin)

- support VMD "membar shadow" feature (Jon Derrick)

- support VMD bus number offsets (Jon Derrick)

- add VMD "no AER source ID" quirk for more device IDs (Jon Derrick)

- remove unnecessary host controller CONFIG_PCIEPORTBUS Kconfig
selections (Bjorn Helgaas)

- clean up quirks.c organization and whitespace (Bjorn Helgaas)

* tag 'pci-v4.18-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (144 commits)
PCI/AER: Replace struct pcie_device with pci_dev
PCI/AER: Remove unused parameters
PCI: qcom: Include gpio/consumer.h
PCI: Improve "partially hidden behind bridge" log message
PCI: Improve pci_scan_bridge() and pci_scan_bridge_extend() doc
PCI: Move resource distribution for single bridge outside loop
PCI: Account for all bridges on bus when distributing bus numbers
ACPI / hotplug / PCI: Drop unnecessary parentheses
ACPI / hotplug / PCI: Mark stale PCI devices disconnected
ACPI / hotplug / PCI: Don't scan bridges managed by native hotplug
PCI: hotplug: Add hotplug_is_native()
PCI: shpchp: Add shpchp_is_native()
PCI: shpchp: Fix AMD POGO identification
PCI: mobiveil: Add MSI support
PCI: mobiveil: Add Mobiveil PCIe Host Bridge IP driver
PCI/AER: Decode Error Source Requester ID
PCI/AER: Remove aer_recover_work_func() forward declaration
PCI/DPC: Use the generic pcie_do_fatal_recovery() path
PCI/AER: Pass service type to pcie_do_fatal_recovery()
PCI/DPC: Disable ERR_NONFATAL handling by DPC
...

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Merge tag 'microblaze-v4.18-rc1' of git://git.monstr.eu/linux-2.6-microblaze

Pull microblaze updates from Michal Simek:

- Fix simpleImage format generation

- Remove early

Merge tag 'microblaze-v4.18-rc1' of git://git.monstr.eu/linux-2.6-microblaze

Pull microblaze updates from Michal Simek:

- Fix simpleImage format generation

- Remove earlyprintk support and replace it by earlycon

* tag 'microblaze-v4.18-rc1' of git://git.monstr.eu/linux-2.6-microblaze:
microblaze: dts: replace 'linux,stdout-path' with 'stdout-path'
microblaze: remove redundant early_printk support
microblaze: remove unnecessary prom.h includes
microblaze: Fix simpleImage format generation

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microblaze/PCI: Remove pcibios_claim_one_bus() dead code

pcibios_claim_one_bus() is defined but never used. Remove it.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

microblaze/PCI: Remove pcibios_finish_adding_to_bus() dead code

pcibios_finish_adding_to_bus() is defined but never used. Remove it.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.c

microblaze/PCI: Remove pcibios_finish_adding_to_bus() dead code

pcibios_finish_adding_to_bus() is defined but never used. Remove it.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

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PCI: remove PCI_DMA_BUS_IS_PHYS

This was used by the ide, scsi and networking code in the past to
determine if they should bounce payloads. Now that the dma mapping
always have to s

PCI: remove PCI_DMA_BUS_IS_PHYS

This was used by the ide, scsi and networking code in the past to
determine if they should bounce payloads. Now that the dma mapping
always have to support dma to all physical memory (thanks to swiotlb
for non-iommu systems) there is no need to this crude hack any more.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Palmer Dabbelt <palmer@sifive.com> (for riscv)
Reviewed-by: Jens Axboe <axboe@kernel.dk>

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microblaze: remove unnecessary prom.h includes

In preparation to remove prom.h, remove unnecessary prom.h includes.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Michal Simek

microblaze: remove unnecessary prom.h includes

In preparation to remove prom.h, remove unnecessary prom.h includes.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Michal Simek <monstr@monstr.eu>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

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microblaze: Use generic pci_mmap_resource_range()

Commit f719582435 ("PCI: Add pci_mmap_resource_range() and use it for
ARM64") added this generic function with the intent of using it

microblaze: Use generic pci_mmap_resource_range()

Commit f719582435 ("PCI: Add pci_mmap_resource_range() and use it for
ARM64") added this generic function with the intent of using it
everywhere and ultimately killing the old arch-specific implementations.

Let's get on with that eradication...

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

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microblaze/PCI: Remove pcibios_setup_bus_{self/devices} dead code

01cf9d524ff0 ("microblaze/PCI: Support generic Xilinx AXI PCIe Host Bridge
IP driver") removed pcibios calls to:

microblaze/PCI: Remove pcibios_setup_bus_{self/devices} dead code

01cf9d524ff0 ("microblaze/PCI: Support generic Xilinx AXI PCIe Host Bridge
IP driver") removed pcibios calls to:

pcibios_setup_bus_self()
pcibios_setup_bus_devices()

Given that pcibios_fixup_bus() was the only caller of those functions they
have now become dead code (along with the functions they were calling in
turn), so they can be removed.

Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
[bhelgaas: remove "Fixup resources of a PCI<->PCI bridge" comment]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Cc: Bharat Kumar Gogada <bharatku@xilinx.com>
Cc: Ravi Kiran Gummaluri <rgummal@xilinx.com>

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