a923874198
PCI device hotplug
- Use PCIe native hotplug, not ACPI hotplug, when possible (Neil Horman)
- Assign resources on per-host bridge basis (Yinghai Lu)
MPS (Max Payload Size)
- Allow larger MPS settings below hotplug-capable Root Port (Yijing Wang)
- Add warnings about unsafe MPS settings (Yijing Wang)
- Simplify interface and messages (Bjorn Helgaas)
SR-IOV
- Return -ENOSYS on non-SR-IOV devices (Stefan Assmann)
- Update NumVFs register when disabling SR-IOV (Yijing Wang)
Virtualization
- Add bus and slot reset support (Alex Williamson)
- Fix ACS (Access Control Services) issues (Alex Williamson)
Miscellaneous
- Simplify PCIe Capability accessors (Bjorn Helgaas)
- Add pcibios_pm_ops for arch-specific hibernate stuff (Sebastian Ott)
- Disable decoding during BAR sizing only when necessary (Zoltan Kiss)
- Delay enabling bridges until they're needed (Yinghai Lu)
- Split Designware support into Synopsys and Exynos parts (Jingoo Han)
- Convert class code to use dev_groups (Greg Kroah-Hartman)
- Cleanup Designware and Exynos I/O access wrappers (Seungwon Jeon)
- Fix bridge I/O window alignment (Bjorn Helgaas)
- Add pci_wait_for_pending_transaction() (Casey Leedom)
- Use devm_ioremap_resource() in Marvell driver (Tushar Behera)
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)
iQIcBAABAgAGBQJSJiBcAAoJEFmIoMA60/r8xJgQAJML7aDmo3ASfabGrfY12fUR
10Miud/MzlX8/AjPSVW0BodpPMmyQY/Viqd9nBWVm3OR9JSrBp2Q8a3Qge5c0GsE
dMpO3bJrjOmexaAP3wqEQ/NNyL+iIO7fVQsjHf0uyYTS359Ed0TMWsLQwjAa+h2d
bB2Ul1AqNiXywCj8Kxnzz52DLnRn1g2YVwp7hACCXyQ+NDVDqhgbxLBnbEFkQqOr
jAF38xz6DuyVTF+EzIIUDWsOLuo5s0qC3aai36yrVwUuuppBFFX4QRoUOaerZRwe
2WCSa8jqI5QnOPU0LYIPr24DJa6LKCtuSJXUE5hKZgz70UsNefRkV3F5lzB/YlXt
t5PYH9B27fEyokh8gGmyytAKkutbm8RH3+99cjNzf/UKuiJgzZE27qi3A+DEpJft
Igl4WoIC39/fhDSvmpGfd7BWvEkdz86UKdB9f7Wz6+NpWoDLiYiwqkOGuF0bo7zo
3vH48s5VAR8avyGeSUPGFcP9Bq+Hi936xzZxq+Hrj0hASPTpOMTLD1XCqomONO26
x6x0ipHRDTh3TixHN7KENqyIJCkY/vlzt4kDnzytZe4TupJX+hlG74fq98hpoEFy
y2RPiLB8jahPf+fr4cmltqiv6WAhcUcJuGdcAF+Ht4wlrIDELR8e7AKH4Q04B/5O
I8FCB6bay8mvW6MMSXql
=uNEk
-----END PGP SIGNATURE-----
Merge tag 'pci-v3.12-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI changes from Bjorn Helgaas:
PCI device hotplug:
- Use PCIe native hotplug, not ACPI hotplug, when possible (Neil Horman)
- Assign resources on per-host bridge basis (Yinghai Lu)
MPS (Max Payload Size):
- Allow larger MPS settings below hotplug-capable Root Port (Yijing Wang)
- Add warnings about unsafe MPS settings (Yijing Wang)
- Simplify interface and messages (Bjorn Helgaas)
SR-IOV:
- Return -ENOSYS on non-SR-IOV devices (Stefan Assmann)
- Update NumVFs register when disabling SR-IOV (Yijing Wang)
Virtualization:
- Add bus and slot reset support (Alex Williamson)
- Fix ACS (Access Control Services) issues (Alex Williamson)
Miscellaneous:
- Simplify PCIe Capability accessors (Bjorn Helgaas)
- Add pcibios_pm_ops for arch-specific hibernate stuff (Sebastian Ott)
- Disable decoding during BAR sizing only when necessary (Zoltan Kiss)
- Delay enabling bridges until they're needed (Yinghai Lu)
- Split Designware support into Synopsys and Exynos parts (Jingoo Han)
- Convert class code to use dev_groups (Greg Kroah-Hartman)
- Cleanup Designware and Exynos I/O access wrappers (Seungwon Jeon)
- Fix bridge I/O window alignment (Bjorn Helgaas)
- Add pci_wait_for_pending_transaction() (Casey Leedom)
- Use devm_ioremap_resource() in Marvell driver (Tushar Behera)
* tag 'pci-v3.12-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (63 commits)
PCI/ACPI: Fix _OSC ordering to allow PCIe hotplug use when available
PCI: exynos: Add I/O access wrappers
PCI: designware: Drop "addr" arg from dw_pcie_readl_rc()/dw_pcie_writel_rc()
PCI: Remove pcie_cap_has_devctl()
PCI: Support PCIe Capability Slot registers only for ports with slots
PCI: Remove PCIe Capability version checks
PCI: Allow PCIe Capability link-related register access for switches
PCI: Add offsets of PCIe capability registers
PCI: Tidy bitmasks and spacing of PCIe capability definitions
PCI: Remove obsolete comment reference to pci_pcie_cap2()
PCI: Clarify PCI_EXP_TYPE_PCI_BRIDGE comment
PCI: Rename PCIe capability definitions to follow convention
PCI: Warn if unsafe MPS settings detected
PCI: Fix MPS peer-to-peer DMA comment syntax
PCI: Disable decoding for BAR sizing only when it was actually enabled
PCI: Add comment about needing pci_msi_off() even when CONFIG_PCI_MSI=n
PCI: Add pcibios_pm_ops for optional arch-specific hibernate functionality
PCI: Don't restrict MPS for slots below Root Ports
PCI: Simplify MPS test for Downstream Port
PCI: Remove unnecessary check for pcie_get_mps() failure
...
83 lines
2 KiB
Plaintext
83 lines
2 KiB
Plaintext
#
|
|
# PCI Express Port Bus Configuration
|
|
#
|
|
config PCIEPORTBUS
|
|
bool "PCI Express Port Bus support"
|
|
depends on PCI
|
|
help
|
|
This automatically enables PCI Express Port Bus support. Users can
|
|
choose Native Hot-Plug support, Advanced Error Reporting support,
|
|
Power Management Event support and Virtual Channel support to run
|
|
on PCI Express Ports (Root or Switch).
|
|
|
|
#
|
|
# Include service Kconfig here
|
|
#
|
|
config HOTPLUG_PCI_PCIE
|
|
bool "PCI Express Hotplug driver"
|
|
depends on HOTPLUG_PCI && PCIEPORTBUS
|
|
help
|
|
Say Y here if you have a motherboard that supports PCI Express Native
|
|
Hotplug
|
|
|
|
When in doubt, say N.
|
|
|
|
source "drivers/pci/pcie/aer/Kconfig"
|
|
|
|
#
|
|
# PCI Express ASPM
|
|
#
|
|
config PCIEASPM
|
|
bool "PCI Express ASPM control" if EXPERT
|
|
depends on PCI && PCIEPORTBUS
|
|
default y
|
|
help
|
|
This enables OS control over PCI Express ASPM (Active State
|
|
Power Management) and Clock Power Management. ASPM supports
|
|
state L0/L0s/L1.
|
|
|
|
ASPM is initially set up by the firmware. With this option enabled,
|
|
Linux can modify this state in order to disable ASPM on known-bad
|
|
hardware or configurations and enable it when known-safe.
|
|
|
|
ASPM can be disabled or enabled at runtime via
|
|
/sys/module/pcie_aspm/parameters/policy
|
|
|
|
When in doubt, say Y.
|
|
config PCIEASPM_DEBUG
|
|
bool "Debug PCI Express ASPM"
|
|
depends on PCIEASPM
|
|
default n
|
|
help
|
|
This enables PCI Express ASPM debug support. It will add per-device
|
|
interface to control ASPM.
|
|
|
|
choice
|
|
prompt "Default ASPM policy"
|
|
default PCIEASPM_DEFAULT
|
|
depends on PCIEASPM
|
|
|
|
config PCIEASPM_DEFAULT
|
|
bool "BIOS default"
|
|
depends on PCIEASPM
|
|
help
|
|
Use the BIOS defaults for PCI Express ASPM.
|
|
|
|
config PCIEASPM_POWERSAVE
|
|
bool "Powersave"
|
|
depends on PCIEASPM
|
|
help
|
|
Enable PCI Express ASPM L0s and L1 where possible, even if the
|
|
BIOS did not.
|
|
|
|
config PCIEASPM_PERFORMANCE
|
|
bool "Performance"
|
|
depends on PCIEASPM
|
|
help
|
|
Disable PCI Express ASPM L0s and L1, even if the BIOS enabled them.
|
|
endchoice
|
|
|
|
config PCIE_PME
|
|
def_bool y
|
|
depends on PCIEPORTBUS && PM_RUNTIME
|