linux.git/drivers/pci/controller/Kconfig, branch v5.16

PCI: mt7621: Convert driver into 'bool'

2021-12-13T19:13:32+00:00

The driver is not ready yet to be compiled as a module since it depends
on some symbols not exported on MIPS.  We have the following current
problems:

  Building mips:allmodconfig ... failed
  --------------
  Error log:
  ERROR: modpost: missing MODULE_LICENSE() in drivers/pci/controller/pcie-mt7621.o
  ERROR: modpost: "mips_cm_unlock_other" [drivers/pci/controller/pcie-mt7621.ko] undefined!
  ERROR: modpost: "mips_cpc_base" [drivers/pci/controller/pcie-mt7621.ko] undefined!
  ERROR: modpost: "mips_cm_lock_other" [drivers/pci/controller/pcie-mt7621.ko] undefined!
  ERROR: modpost: "mips_cm_is64" [drivers/pci/controller/pcie-mt7621.ko] undefined!
  ERROR: modpost: "mips_gcr_base" [drivers/pci/controller/pcie-mt7621.ko] undefined!

Temporarily move from 'tristate' to 'bool' until a better solution is
ready.

Also RALINK is redundant because SOC_MT7621 already depends on it.
Hence, simplify condition.

Fixes: 2bdd5238e756 ("PCI: mt7621: Add MediaTek MT7621 PCIe host controller driver").
Signed-off-by: Sergio Paracuellos 
Reviewed-and-Tested-by: Guenter Roeck 
Signed-off-by: Linus Torvalds

Merge tag 'mips_5.16_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

2021-11-13T17:11:33+00:00

Pull more MIPS updates from Thomas Bogendoerfer:

 - Config updates for BMIPS platform

 - Build fixes

 - Makefile cleanups

* tag 'mips_5.16_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
  mips: decompressor: do not copy source files while building
  MIPS: boot/compressed/: add __bswapdi2() to target for ZSTD decompression
  MIPS: fix duplicated slashes for Platform file path
  MIPS: fix *-pkg builds for loongson2ef platform
  PCI: brcmstb: Allow building for BMIPS_GENERIC
  MIPS: BMIPS: Enable PCI Kconfig
  MIPS: VDSO: remove -nostdlib compiler flag
  mips: BCM63XX: ensure that CPU_SUPPORTS_32BIT_KERNEL is set
  MIPS: Update bmips_stb_defconfig
  MIPS: Allow modules to set board_be_handler

PCI: brcmstb: Allow building for BMIPS_GENERIC

2021-11-09T15:10:34+00:00

BMIPS_GENERIC denotes support for the MIPS-based Broadcom STB platforms
which this driver can support.

Signed-off-by: Florian Fainelli 
Signed-off-by: Thomas Bogendoerfer

Merge branch 'remotes/lorenzo/pci/vmd'

2021-11-05T16:28:53+00:00

- Assign a number to each VMD controller to distinguish them in
  /proc/interrupts (Chunguang Xu)

- Don't disable VMD MSI-X remapping if IOMMU remapping is enabled (Adrian
  Huang)

- Add Kconfig dependency on !UML for allyesconfig build issue (Johannes
  Berg)

* remotes/lorenzo/pci/vmd:
  PCI: vmd: depend on !UML
  PCI: vmd: Do not disable MSI-X remapping if interrupt remapping is enabled by IOMMU
  PCI: vmd: Assign a number to each VMD controller

Merge branch 'pci/host/mt7621'

2021-11-05T16:28:51+00:00

- Add MediaTek MT7621 SoC PCIe host controller (moved from staging) (Sergio
  Paracuellos)

* pci/host/mt7621:
  MAINTAINERS: Add Sergio Paracuellos as MT7621 PCIe maintainer
  PCI: mt7621: Add MediaTek MT7621 PCIe host controller driver
  dt-bindings: PCI: Add MT7621 SoC PCIe host controller

# Conflicts:
#	drivers/pci/controller/Kconfig
#	drivers/pci/controller/Makefile

iommu/dart: Exclude MSI doorbell from PCIe device IOVA range

2021-11-04T21:29:30+00:00

The MSI doorbell on Apple HW can be any address in the low 4GB range.
However, the MSI write is matched by the PCIe block before hitting the
iommu. It must thus be excluded from the IOVA range that is assigned to any
PCIe device.

Link: https://lore.kernel.org/r/20210929163847.2807812-9-maz@kernel.org
Tested-by: Alyssa Rosenzweig 
Signed-off-by: Marc Zyngier 
Signed-off-by: Lorenzo Pieralisi 
Signed-off-by: Bjorn Helgaas 
Reviewed-by: Sven Peter

PCI: apple: Add initial hardware bring-up

2021-11-04T19:17:08+00:00

Add a minimal driver to bring up the PCIe bus on Apple system-on-chips,
particularly the Apple M1. This driver exposes the internal bus used for
the USB type-A ports, Ethernet, Wi-Fi, and Bluetooth. Bringing up the
radios requires additional drivers beyond what's necessary for PCIe itself.

Co-developed-by: Stan Skowronek 
Link: https://lore.kernel.org/r/20210929163847.2807812-5-maz@kernel.org
Signed-off-by: Stan Skowronek 
Signed-off-by: Alyssa Rosenzweig 
Signed-off-by: Marc Zyngier 
Signed-off-by: Lorenzo Pieralisi 
Signed-off-by: Bjorn Helgaas 
Reviewed-by: Rob Herring 
Reviewed-by: Sven Peter

PCI: mt7621: Add MediaTek MT7621 PCIe host controller driver

2021-10-21T15:59:18+00:00

Add driver for the PCIe controller of the MT7621 SoC.

[bhelgaas: rename from pci-mt7621.c to pcie-mt7621.c; also rename Kconfig
symbol from PCI_MT7621 to PCIE_MT7621]
Link: https://lore.kernel.org/r/20210922050035.18162-3-sergio.paracuellos@gmail.com
Signed-off-by: Sergio Paracuellos 
Signed-off-by: Lorenzo Pieralisi 
Signed-off-by: Bjorn Helgaas 
Acked-by: Greg Kroah-Hartman

PCI: vmd: depend on !UML

2021-10-13T14:12:17+00:00

With UML having enabled (simulated) PCI on UML, VMD breaks
allyesconfig/allmodconfig compilation because it assumes
it's running on X86_64 bare metal, and has hardcoded API
use of ARCH=x86. Make it depend on !UML to fix this.

Link: https://lore.kernel.org/r/20210811162530.affe26231bc3.I131b3c1e67e3d2ead6e98addd256c835fbef9a3e@changeid
Signed-off-by: Johannes Berg 
Signed-off-by: Lorenzo Pieralisi 
Reviewed-by: Jon Derrick 
Acked-by: Randy Dunlap  # build-tested

PCI: controller: PCI_IXP4XX should depend on ARCH_IXP4XX

2021-07-23T15:10:05+00:00

The Intel IXP4xx PCI controller is only present on Intel IXP4xx
XScale-based network processor SoCs.

Add a dependency on ARCH_IXP4XX, to prevent asking the user about this
driver when configuring a kernel without support for the XScale
processor family.

Link: https://lore.kernel.org/r/6a88e55fe58fc280f4ff1ca83c154e4895b6dcbf.1624972789.git.geert+renesas@glider.be
Fixes: f7821b4934584824 ("PCI: ixp4xx: Add a new driver for IXP4xx")
Signed-off-by: Geert Uytterhoeven 
[lorenzo.pieralisi@arm.com: commit log]
Signed-off-by: Lorenzo Pieralisi 
Reviewed-by: Linus Walleij