x86: Add IRQF_TIMER to legacy x86 timer interrupt descriptors

Right now nobody cares, but the suspend/resume code will eventually want
to suspend device interrupts without suspending the timer, and will
depend on this flag to know.

The modern x86 timer infrastructure uses the local APIC timers and never
shows up as a device interrupt at all, so it isn't affected and doesn't
need any of this.

Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/arch/x86/kernel/time_64.c b/arch/x86/kernel/time_64.c
index e6e695a..241ec39 100644 (file)
--- a/arch/x86/kernel/time_64.c
+++ b/arch/x86/kernel/time_64.c
@@ -115,7 +115,7 @@ unsigned long __init calibrate_cpu(void)
 
 static struct irqaction irq0 = {
        .handler        = timer_interrupt,
-       .flags          = IRQF_DISABLED | IRQF_IRQPOLL | IRQF_NOBALANCING,
+       .flags          = IRQF_DISABLED | IRQF_IRQPOLL | IRQF_NOBALANCING | IRQF_TIMER,
        .mask           = CPU_MASK_NONE,
        .name           = "timer"
 };

diff --git a/arch/x86/kernel/vmiclock_32.c b/arch/x86/kernel/vmiclock_32.c
index bde106c..e5b088f 100644 (file)
--- a/arch/x86/kernel/vmiclock_32.c
+++ b/arch/x86/kernel/vmiclock_32.c
@@ -202,7 +202,7 @@ static irqreturn_t vmi_timer_interrupt(int irq, void *dev_id)
 static struct irqaction vmi_clock_action  = {
        .name           = "vmi-timer",
        .handler        = vmi_timer_interrupt,
-       .flags          = IRQF_DISABLED | IRQF_NOBALANCING,
+       .flags          = IRQF_DISABLED | IRQF_NOBALANCING | IRQF_TIMER,
        .mask           = CPU_MASK_ALL,
 };
 

diff --git a/arch/x86/mach-default/setup.c b/arch/x86/mach-default/setup.c
index a265a7c..50b5918 100644 (file)
--- a/arch/x86/mach-default/setup.c
+++ b/arch/x86/mach-default/setup.c
@@ -96,7 +96,7 @@ void __init trap_init_hook(void)
 
 static struct irqaction irq0  = {
        .handler = timer_interrupt,
-       .flags = IRQF_DISABLED | IRQF_NOBALANCING | IRQF_IRQPOLL,
+       .flags = IRQF_DISABLED | IRQF_NOBALANCING | IRQF_IRQPOLL | IRQF_TIMER,
        .mask = CPU_MASK_NONE,
        .name = "timer"
 };

diff --git a/arch/x86/mach-voyager/setup.c b/arch/x86/mach-voyager/setup.c
index d914a79..8e51183 100644 (file)
--- a/arch/x86/mach-voyager/setup.c
+++ b/arch/x86/mach-voyager/setup.c
@@ -56,7 +56,7 @@ void __init trap_init_hook(void)
 
 static struct irqaction irq0 = {
        .handler = timer_interrupt,
-       .flags = IRQF_DISABLED | IRQF_NOBALANCING | IRQF_IRQPOLL,
+       .flags = IRQF_DISABLED | IRQF_NOBALANCING | IRQF_IRQPOLL | IRQF_TIMER,
        .mask = CPU_MASK_NONE,
        .name = "timer"
 };