linux-kernel - [tip:x86/apic] genirq: Add config option for reservation mode

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Message-ID: <tip-2b5175c4fa974b6aa05bbd2ee8d443a8036a1714@git.kernel.org>
Date:   Wed, 18 Oct 2017 06:42:57 -0700
From:   tip-bot for Thomas Gleixner <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     saeedm@...lanox.com, hpa@...or.com, mingo@...nel.org,
        decui@...rosoft.com, v-micos@...rosoft.com, tglx@...utronix.de,
        linux-kernel@...r.kernel.org, kys@...rosoft.com,
        jopoulso@...rosoft.com, sixiao@...rosoft.com, bhelgaas@...gle.com,
        sthemmin@...rosoft.com, marc.zyngier@....com,
        Jork.Loeser@...rosoft.com, haiyangz@...rosoft.com
Subject: [tip:x86/apic] genirq: Add config option for reservation mode

Commit-ID:  2b5175c4fa974b6aa05bbd2ee8d443a8036a1714
Gitweb:     https://git.kernel.org/tip/2b5175c4fa974b6aa05bbd2ee8d443a8036a1714
Author:     Thomas Gleixner <tglx@...utronix.de>
AuthorDate: Tue, 17 Oct 2017 09:54:57 +0200
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Wed, 18 Oct 2017 15:38:30 +0200

genirq: Add config option for reservation mode

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@...utronix.de>
Cc: Josh Poulson <jopoulso@...rosoft.com>
Cc: Mihai Costache <v-micos@...rosoft.com>
Cc: Stephen Hemminger <sthemmin@...rosoft.com>
Cc: Marc Zyngier <marc.zyngier@....com>
Cc: linux-pci@...r.kernel.org
Cc: Haiyang Zhang <haiyangz@...rosoft.com>
Cc: Dexuan Cui <decui@...rosoft.com>
Cc: Simon Xiao <sixiao@...rosoft.com>
Cc: Saeed Mahameed <saeedm@...lanox.com>
Cc: Jork Loeser <Jork.Loeser@...rosoft.com>
Cc: Bjorn Helgaas <bhelgaas@...gle.com>
Cc: devel@...uxdriverproject.org
Cc: KY Srinivasan <kys@...rosoft.com>
Link: https://lkml.kernel.org/r/20171017075600.369375409@linutronix.de

---
 kernel/irq/Kconfig | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/kernel/irq/Kconfig b/kernel/irq/Kconfig
index ac1a3e2..89e3558 100644
--- a/kernel/irq/Kconfig
+++ b/kernel/irq/Kconfig
@@ -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