mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-25 17:45:11 +07:00
2b5175c4fa
The interrupt reservation mode requires reactivation of PCI/MSI interrupts. Create a config option, so the PCI code can set the corresponding flag when required. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Josh Poulson <jopoulso@microsoft.com> Cc: Mihai Costache <v-micos@microsoft.com> Cc: Stephen Hemminger <sthemmin@microsoft.com> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: linux-pci@vger.kernel.org Cc: Haiyang Zhang <haiyangz@microsoft.com> Cc: Dexuan Cui <decui@microsoft.com> Cc: Simon Xiao <sixiao@microsoft.com> Cc: Saeed Mahameed <saeedm@mellanox.com> Cc: Jork Loeser <Jork.Loeser@microsoft.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: devel@linuxdriverproject.org Cc: KY Srinivasan <kys@microsoft.com> Link: https://lkml.kernel.org/r/20171017075600.369375409@linutronix.de
145 lines
3.3 KiB
Plaintext
145 lines
3.3 KiB
Plaintext
menu "IRQ subsystem"
|
|
# Options selectable by the architecture code
|
|
|
|
# Make sparse irq Kconfig switch below available
|
|
config MAY_HAVE_SPARSE_IRQ
|
|
bool
|
|
|
|
# Legacy support, required for itanic
|
|
config GENERIC_IRQ_LEGACY
|
|
bool
|
|
|
|
# Enable the generic irq autoprobe mechanism
|
|
config GENERIC_IRQ_PROBE
|
|
bool
|
|
|
|
# Use the generic /proc/interrupts implementation
|
|
config GENERIC_IRQ_SHOW
|
|
bool
|
|
|
|
# Print level/edge extra information
|
|
config GENERIC_IRQ_SHOW_LEVEL
|
|
bool
|
|
|
|
# Supports effective affinity mask
|
|
config GENERIC_IRQ_EFFECTIVE_AFF_MASK
|
|
bool
|
|
|
|
# Facility to allocate a hardware interrupt. This is legacy support
|
|
# and should not be used in new code. Use irq domains instead.
|
|
config GENERIC_IRQ_LEGACY_ALLOC_HWIRQ
|
|
bool
|
|
|
|
# Support for delayed migration from interrupt context
|
|
config GENERIC_PENDING_IRQ
|
|
bool
|
|
|
|
# Support for generic irq migrating off cpu before the cpu is offline.
|
|
config GENERIC_IRQ_MIGRATION
|
|
bool
|
|
|
|
# Alpha specific irq affinity mechanism
|
|
config AUTO_IRQ_AFFINITY
|
|
bool
|
|
|
|
# Tasklet based software resend for pending interrupts on enable_irq()
|
|
config HARDIRQS_SW_RESEND
|
|
bool
|
|
|
|
# Preflow handler support for fasteoi (sparc64)
|
|
config IRQ_PREFLOW_FASTEOI
|
|
bool
|
|
|
|
# Edge style eoi based handler (cell)
|
|
config IRQ_EDGE_EOI_HANDLER
|
|
bool
|
|
|
|
# Generic configurable interrupt chip implementation
|
|
config GENERIC_IRQ_CHIP
|
|
bool
|
|
select IRQ_DOMAIN
|
|
|
|
# Generic irq_domain hw <--> linux irq number translation
|
|
config IRQ_DOMAIN
|
|
bool
|
|
|
|
# Support for simulated interrupts
|
|
config IRQ_SIM
|
|
bool
|
|
select IRQ_WORK
|
|
|
|
# Support for hierarchical irq domains
|
|
config IRQ_DOMAIN_HIERARCHY
|
|
bool
|
|
select IRQ_DOMAIN
|
|
|
|
# Support for hierarchical fasteoi+edge and fasteoi+level handlers
|
|
config IRQ_FASTEOI_HIERARCHY_HANDLERS
|
|
bool
|
|
|
|
# Generic IRQ IPI support
|
|
config GENERIC_IRQ_IPI
|
|
bool
|
|
|
|
# Generic MSI interrupt support
|
|
config GENERIC_MSI_IRQ
|
|
bool
|
|
|
|
# Generic MSI hierarchical interrupt domain support
|
|
config GENERIC_MSI_IRQ_DOMAIN
|
|
bool
|
|
select IRQ_DOMAIN_HIERARCHY
|
|
select GENERIC_MSI_IRQ
|
|
|
|
config HANDLE_DOMAIN_IRQ
|
|
bool
|
|
|
|
config IRQ_TIMINGS
|
|
bool
|
|
|
|
config GENERIC_IRQ_MATRIX_ALLOCATOR
|
|
bool
|
|
|
|
config GENERIC_IRQ_RESERVATION_MODE
|
|
bool
|
|
|
|
config IRQ_DOMAIN_DEBUG
|
|
bool "Expose hardware/virtual IRQ mapping via debugfs"
|
|
depends on IRQ_DOMAIN && DEBUG_FS
|
|
help
|
|
This option will show the mapping relationship between hardware irq
|
|
numbers and Linux irq numbers. The mapping is exposed via debugfs
|
|
in the file "irq_domain_mapping".
|
|
|
|
If you don't know what this means you don't need it.
|
|
|
|
# Support forced irq threading
|
|
config IRQ_FORCED_THREADING
|
|
bool
|
|
|
|
config SPARSE_IRQ
|
|
bool "Support sparse irq numbering" if MAY_HAVE_SPARSE_IRQ
|
|
---help---
|
|
|
|
Sparse irq numbering is useful for distro kernels that want
|
|
to define a high CONFIG_NR_CPUS value but still want to have
|
|
low kernel memory footprint on smaller machines.
|
|
|
|
( Sparse irqs can also be beneficial on NUMA boxes, as they spread
|
|
out the interrupt descriptors in a more NUMA-friendly way. )
|
|
|
|
If you don't know what to do here, say N.
|
|
|
|
config GENERIC_IRQ_DEBUGFS
|
|
bool "Expose irq internals in debugfs"
|
|
depends on DEBUG_FS
|
|
default n
|
|
---help---
|
|
|
|
Exposes internal state information through debugfs. Mostly for
|
|
developers and debugging of hard to diagnose interrupt problems.
|
|
|
|
If you don't know what to do here, say N.
|
|
|
|
endmenu
|