diff options
Diffstat (limited to 'drivers/pci/Kconfig')
| -rw-r--r-- | drivers/pci/Kconfig | 103 |
1 files changed, 96 insertions, 7 deletions
diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig index d98fafdd0f99..00b0210e1f1d 100644 --- a/drivers/pci/Kconfig +++ b/drivers/pci/Kconfig @@ -13,9 +13,15 @@ config FORCE_PCI select HAVE_PCI select PCI +# select this to provide a generic PCI iomap, +# without PCI itself having to be defined +config GENERIC_PCI_IOMAP + bool + menuconfig PCI bool "PCI support" depends on HAVE_PCI + depends on MMU help This option enables support for the PCI local bus, including support for PCI-X and the foundations for PCI Express support. @@ -51,11 +57,6 @@ config PCI_MSI If you don't know what to do here, say Y. -config PCI_MSI_IRQ_DOMAIN - def_bool y - depends on PCI_MSI - select GENERIC_MSI_IRQ_DOMAIN - config PCI_MSI_ARCH_FALLBACKS bool @@ -121,6 +122,30 @@ config XEN_PCIDEV_FRONTEND config PCI_ATS bool +config PCI_IDE + bool + +config PCI_TSM + bool "PCI TSM: Device security protocol support" + select PCI_IDE + select PCI_DOE + select TSM + help + The TEE (Trusted Execution Environment) Device Interface + Security Protocol (TDISP) defines a "TSM" as a platform agent + that manages device authentication, link encryption, link + integrity protection, and assignment of PCI device functions + (virtual or physical) to confidential computing VMs that can + access (DMA) guest private memory. + + Enable a platform TSM driver to use this capability. + +config PCI_DOE + bool "Enable PCI Data Object Exchange (DOE) support" + help + Say Y here if you want be able to communicate with PCIe DOE + mailboxes. + config PCI_ECAM bool @@ -140,6 +165,15 @@ config PCI_IOV If unsure, say N. +config PCI_NPEM + bool "Native PCIe Enclosure Management" + depends on LEDS_CLASS=y + help + Support for Native PCIe Enclosure Management. It allows managing LED + indications in storage enclosures. Enclosure must support following + indications: OK, Locate, Fail, Rebuild, other indications are + optional. + config PCI_PRI bool "PCI PRI support" select PCI_ATS @@ -161,12 +195,27 @@ config PCI_PASID If unsure, say N. +config PCIE_TPH + bool "TLP Processing Hints" + help + This option adds support for PCIe TLP Processing Hints (TPH). + TPH allows endpoint devices to provide optimization hints, such as + desired caching behavior, for requests that target memory space. + These hints, called Steering Tags, can empower the system hardware + to optimize the utilization of platform resources. + config PCI_P2PDMA bool "PCI peer-to-peer transfer support" depends on ZONE_DEVICE + # + # The need for the scatterlist DMA bus address flag means PCI P2PDMA + # requires 64bit + # + depends on 64BIT select GENERIC_ALLOCATOR + select NEED_SG_DMA_FLAGS help - Enableѕ drivers to do PCI peer-to-peer transactions to and from + Enables drivers to do PCI peer-to-peer transactions to and from BARs that are exposed in other devices that are the part of the hierarchy where peer-to-peer DMA is guaranteed by the PCI specification to work (ie. anything below a single PCI bridge). @@ -176,6 +225,12 @@ config PCI_P2PDMA P2P DMA transactions must be between devices behind the same root port. + Enabling this option will reduce the entropy of x86 KASLR memory + regions. For example - on a 46 bit system, the entropy goes down + from 16 bits to 15 bits. The actual reduction in entropy depends + on the physical address bits, on processor features, kernel config + (5 level page table) and physical memory present on the system. + If unsure, say N. config PCI_LABEL @@ -184,12 +239,25 @@ config PCI_LABEL config PCI_HYPERV tristate "Hyper-V PCI Frontend" - depends on ((X86 && X86_64) || ARM64) && HYPERV && PCI_MSI && PCI_MSI_IRQ_DOMAIN && SYSFS + depends on ((X86 && X86_64) || ARM64) && HYPERV_VMBUS && PCI_MSI && SYSFS select PCI_HYPERV_INTERFACE + select IRQ_MSI_LIB help The PCI device frontend driver allows the kernel to import arbitrary PCI devices from a PCI backend to support PCI driver domains. +config PCI_DYNAMIC_OF_NODES + bool "Create Device tree nodes for PCI devices" + depends on OF_IRQ + select OF_DYNAMIC + help + This option enables support for generating device tree nodes for some + PCI devices. Thus, the driver of this kind can load and overlay + flattened device tree for its downstream devices. + + Once this option is selected, the device tree nodes will be generated + for all PCI bridges. + choice prompt "PCI Express hierarchy optimization setting" default PCIE_BUS_DEFAULT @@ -252,9 +320,30 @@ config PCIE_BUS_PEER2PEER endchoice +config VGA_ARB + bool "VGA Arbitration" if EXPERT + default y + depends on (PCI && !S390) + select SCREEN_INFO if X86 + help + Some "legacy" VGA devices implemented on PCI typically have the same + hard-decoded addresses as they did on ISA. When multiple PCI devices + are accessed at same time they need some kind of coordination. Please + see Documentation/gpu/vgaarbiter.rst for more details. Select this to + enable VGA arbiter. + +config VGA_ARB_MAX_GPUS + int "Maximum number of GPUs" + default 16 + depends on VGA_ARB + help + Reserves space in the kernel to maintain resource locking for + multiple GPUS. The overhead for each GPU is very small. + source "drivers/pci/hotplug/Kconfig" source "drivers/pci/controller/Kconfig" source "drivers/pci/endpoint/Kconfig" source "drivers/pci/switch/Kconfig" +source "drivers/pci/pwrctrl/Kconfig" endif |