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 e6e695acd725739a645b5664f83a8356ff5b13a7..241ec3923f611bf03cb266362409924daabf1f6f 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 bde106cae0a98c600498378db8420a9daafdc60f..e5b088fffa40f56f1418179efcd89ba480bcae6d 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 a265a7c631901d111a9b907fa105754871a45e5b..50b5918711289a175287e0c8fb3b39f4c85a541e 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 d914a7996a6684758f9ba1be29b6e012c88c21eb..8e5118371f0fac1cb3ff2e90d87e0c038c484aed 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"
 };