x86/vector: Use IRQD_CAN_RESERVE flag
authorThomas Gleixner <tglx@linutronix.de>
Fri, 29 Dec 2017 15:57:00 +0000 (16:57 +0100)
committerThomas Gleixner <tglx@linutronix.de>
Fri, 29 Dec 2017 20:13:04 +0000 (21:13 +0100)
Set the new CAN_RESERVE flag when the initial reservation for an interrupt
happens. The flag is used in a subsequent patch to disable reservation mode
for a certain class of MSI devices.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Alexandru Chirvasitu <achirvasub@gmail.com>
Tested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Dou Liyang <douly.fnst@cn.fujitsu.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Mikael Pettersson <mikpelinux@gmail.com>
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>
Cc: Alan Cox <alan@linux.intel.com>
Cc: Sakari Ailus <sakari.ailus@intel.com>,
Cc: linux-media@vger.kernel.org

index 750449152b04b4feed3c98ddc772db91f003f818..1e969dba04761902adc4618b18ac92030d3eb902 100644 (file)
@@ -184,6 +184,7 @@ static void reserve_irq_vector_locked(struct irq_data *irqd)
        apicd->can_reserve = true;
        apicd->has_reserved = true;
+       irqd_set_can_reserve(irqd);
        trace_vector_reserve(irqd->irq, 0);
@@ -478,6 +479,7 @@ static bool vector_configure_legacy(unsigned int virq, struct irq_data *irqd,
        } else {
                /* Release the vector */
                apicd->can_reserve = true;
+               irqd_set_can_reserve(irqd);
                realloc = true;