PCI: Remove pci_get_legacy_ide_irq() and asm-generic/pci.h

pci_get_legacy_ide_irq() is only used on platforms that support PNP, so
many architectures define it but never use it. Replace uses of it

PCI: Remove pci_get_legacy_ide_irq() and asm-generic/pci.h

pci_get_legacy_ide_irq() is only used on platforms that support PNP, so
many architectures define it but never use it. Replace uses of it with
ATA_PRIMARY_IRQ() and ATA_SECONDARY_IRQ(), which provide the same
functionality.

Since pci_get_legacy_ide_irq() is no longer used, remove all the
architecture-specific definitions of it as well as asm-generic/pci.h, which
only provides pci_get_legacy_ide_irq()

[bhelgaas: commit log]
Co-developed-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20220722214944.831438-2-shorne@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Stafford Horne <shorne@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Pierre Morel <pmorel@linux.ibm.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

show more ...

xtensa: drop ifdef __KERNEL__ from kernel-only headers

These headers are not exported to userspace, so they're never used
without __KERNEL__ defined. Drop these ifdef statements.

Signed-off-by: Max

xtensa: drop ifdef __KERNEL__ from kernel-only headers

These headers are not exported to userspace, so they're never used
without __KERNEL__ defined. Drop these ifdef statements.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>

show more ...

xtensa/PCI: Remove dead code

Remove the following unused functions:

pcibios_enable_resources()
pcibios_alloc_controller()
pci_controller_num()

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

xtensa/PCI: Remove dead code

Remove the following unused functions:

pcibios_enable_resources()
pcibios_alloc_controller()
pci_controller_num()

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

show more ...

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 al

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>

show more ...

xtensa/PCI: 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

xtensa/PCI: 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.

Remove the xtensa-specific pci_mmap_page_range() and use the generic
pci_mmap_resource_range() instead.

Xtensa can mmap I/O port space, so supply the xtensa-specific
pci_iobar_pfn() required to make that work.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
[bhelgaas: changelog]
Signed-off-by: Bjorn Helgaas <helgaas@kernel.org>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>

show more ...

PCI: Remove redundant pci_dev, pci_bus, resource declarations

<linux/pci.h> defines struct pci_bus and struct pci_dev and includes the
struct resource definition before including <asm/pci.h>. Nobod

PCI: Remove redundant pci_dev, pci_bus, resource declarations

<linux/pci.h> defines struct pci_bus and struct pci_dev and includes the
struct resource definition before including <asm/pci.h>. Nobody includes
<asm/pci.h> directly, so they don't need their own declarations.

Remove the redundant struct pci_dev, pci_bus, resource declarations.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> # CRIS
Acked-by: Ralf Baechle <ralf@linux-mips.org> # MIPS

show more ...

PCI: Add arch_can_pci_mmap_io() on architectures which can mmap() I/O space

This is relatively esoteric, and knowing that we don't have it makes life
easier in some cases rather than just an eventua

PCI: Add arch_can_pci_mmap_io() on architectures which can mmap() I/O space

This is relatively esoteric, and knowing that we don't have it makes life
easier in some cases rather than just an eventual -EINVAL from
pci_mmap_page_range().

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

show more ...

PCI: Move multiple declarations of pci_mmap_page_range() to <linux/pci.h>

We can declare it <linux/pci.h> even on platforms where it isn't going to
be defined. There's no need to have it littered t

PCI: Move multiple declarations of pci_mmap_page_range() to <linux/pci.h>

We can declare it <linux/pci.h> even on platforms where it isn't going to
be defined. There's no need to have it littered through the various
<asm/pci.h> files.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

show more ...

PCI: Move pci_dma_* helpers to common code

For a long time all architectures implement the pci_dma_* functions using
the generic DMA API, and they all use the same header to do so.

Move this header

PCI: Move pci_dma_* helpers to common code

For a long time all architectures implement the pci_dma_* functions using
the generic DMA API, and they all use the same header to do so.

Move this header, pci-dma-compat.h, to include/linux and include it from
the generic pci.h instead of having each arch duplicate this include.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

show more ...

remove <asm/scatterlist.h>

We don't have any arch specific scatterlist now that parisc switched over
to the generic one.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axb

remove <asm/scatterlist.h>

We don't have any arch specific scatterlist now that parisc switched over
to the generic one.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>

show more ...

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>

show more ...

xtensa: clean up files to make them code-style compliant

Remove heading and trailing spaces, trim trailing lines, and wrap lines
that are longer than 80 characters.

Signed-off-by: Chris Zankel <chr

xtensa: clean up files to make them code-style compliant

Remove heading and trailing spaces, trim trailing lines, and wrap lines
that are longer than 80 characters.

Signed-off-by: Chris Zankel <chris@zankel.net>

show more ...

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

This patch converts Xtensa's architecture-specific
'pcibios_set_master()' routine to a non-inlined function. This will
allow foll

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

This patch converts Xtensa'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 Xtensa'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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pci-dma: add linux/pci-dma.h to linux/pci.h

All the architectures properly set NEED_DMA_MAP_STATE now so we can safely
add linux/pci-dma.h to linux/pci.h and remove the linux/pci-dma.h
inclusion in

pci-dma: add linux/pci-dma.h to linux/pci.h

All the architectures properly set NEED_DMA_MAP_STATE now so we can safely
add linux/pci-dma.h to linux/pci.h and remove the linux/pci-dma.h
inclusion in arch's asm/pci.h

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

show more ...

pci-dma: xtensa: use include/linux/pci-dma.h

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Chris Zankel <chris@zankel.net>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off

pci-dma: xtensa: use include/linux/pci-dma.h

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Chris Zankel <chris@zankel.net>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

show more ...

xtensa: move headers files to arch/xtensa/include

Move all header files for xtensa to arch/xtensa/include and platform and
variant header files to the appropriate arch/xtensa/platforms/ and
arch/xte

xtensa: move headers files to arch/xtensa/include

Move all header files for xtensa to arch/xtensa/include and platform and
variant header files to the appropriate arch/xtensa/platforms/ and
arch/xtensa/variants/ directories.

Moving the files gets also rid of all uses of symlinks in the Makefile.

This has been completed already for the majority of the architectures
and xtensa is one out of six missing.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Chris Zankel <chris@zankel.net>

show more ...

xtensa: drop ifdef __KERNEL__ from kernel-only headers

These headers are not exported to userspace, so they're never used
without __KERNEL__ defined. Drop these ifdef statements.

xtensa: drop ifdef __KERNEL__ from kernel-only headers

These headers are not exported to userspace, so they're never used
without __KERNEL__ defined. Drop these ifdef statements.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>

show more ...

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
...

show more ...

xtensa/PCI: Remove dead code

Remove the following unused functions:

pcibios_enable_resources()
pcibios_alloc_controller()
pci_controller_num()

Signed-off-by:

xtensa/PCI: Remove dead code

Remove the following unused functions:

pcibios_enable_resources()
pcibios_alloc_controller()
pci_controller_num()

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

show more ...

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>

show more ...

xtensa/PCI: 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 ev

xtensa/PCI: 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.

Remove the xtensa-specific pci_mmap_page_range() and use the generic
pci_mmap_resource_range() instead.

Xtensa can mmap I/O port space, so supply the xtensa-specific
pci_iobar_pfn() required to make that work.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
[bhelgaas: changelog]
Signed-off-by: Bjorn Helgaas <helgaas@kernel.org>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>

show more ...

PCI: Remove redundant pci_dev, pci_bus, resource declarations

<linux/pci.h> defines struct pci_bus and struct pci_dev and includes the
struct resource definition before including <asm/pc

PCI: Remove redundant pci_dev, pci_bus, resource declarations

<linux/pci.h> defines struct pci_bus and struct pci_dev and includes the
struct resource definition before including <asm/pci.h>. Nobody includes
<asm/pci.h> directly, so they don't need their own declarations.

Remove the redundant struct pci_dev, pci_bus, resource declarations.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> # CRIS
Acked-by: Ralf Baechle <ralf@linux-mips.org> # MIPS

show more ...

PCI: Add arch_can_pci_mmap_io() on architectures which can mmap() I/O space

This is relatively esoteric, and knowing that we don't have it makes life
easier in some cases rather than jus

PCI: Add arch_can_pci_mmap_io() on architectures which can mmap() I/O space

This is relatively esoteric, and knowing that we don't have it makes life
easier in some cases rather than just an eventual -EINVAL from
pci_mmap_page_range().

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

show more ...

PCI: Move multiple declarations of pci_mmap_page_range() to <linux/pci.h>

We can declare it <linux/pci.h> even on platforms where it isn't going to
be defined. There's no need to have i

PCI: Move multiple declarations of pci_mmap_page_range() to <linux/pci.h>

We can declare it <linux/pci.h> even on platforms where it isn't going to
be defined. There's no need to have it littered through the various
<asm/pci.h> files.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

show more ...

PCI: Move pci_dma_* helpers to common code

For a long time all architectures implement the pci_dma_* functions using
the generic DMA API, and they all use the same header to do so.

PCI: Move pci_dma_* helpers to common code

For a long time all architectures implement the pci_dma_* functions using
the generic DMA API, and they all use the same header to do so.

Move this header, pci-dma-compat.h, to include/linux and include it from
the generic pci.h instead of having each arch duplicate this include.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

show more ...