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genirq: Add config option for reservation mode

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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
This commit is contained in:
Thomas Gleixner 2017-10-17 09:54:57 +02:00
parent 0696d059f2
commit 2b5175c4fa
1 changed files with 3 additions and 0 deletions
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3
kernel/irq/Kconfig
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@ -100,6 +100,9 @@ config IRQ_TIMINGS
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