linux/arch/arm64/include/asm/irq_work.h

#ifndef __ASM_IRQ_WORK_H
#define __ASM_IRQ_WORK_H

#ifdef CONFIG_SMP

#include <asm/smp.h>

static inline bool arch_irq_work_has_interrupt(void)
{
	return !!__smp_cross_call;
}

#else

static inline bool arch_irq_work_has_interrupt(void)
{
	return false;
}

#endif

#endif /* __ASM_IRQ_WORK_H */
arm64: Tell irq work about self IPI support ARM64 irq work self-IPI support depends on __smp_cross_call to point to some relevant IRQ controller operations. This information should be available after the call to init_IRQ(). Lets implement arch_irq_work_has_interrupt() accordingly. Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> 2014-08-16 16:48:05 +00:00			`#ifndef __ASM_IRQ_WORK_H`
			`#define __ASM_IRQ_WORK_H`

arm64: Fix compilation error on UP builds In file included from ./arch/arm64/include/asm/irq_work.h:4:0, from include/linux/irq_work.h:46, from include/linux/perf_event.h:49, from include/linux/ftrace_event.h:9, from include/trace/syscall.h:6, from include/linux/syscalls.h:81, from init/main.c:18: ./arch/arm64/include/asm/smp.h:24:3: error: #error "<asm/smp.h> included in non-SMP build" # error "<asm/smp.h> included in non-SMP build" Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Fixes: 3631073659d0 ("arm64: Tell irq work about self IPI support") Reported-by: Guenter Roeck <linux@roeck-us.net> Tested-by: Guenter Roeck <linux@roeck-us.net> 2014-10-21 16:01:07 +00:00			`#ifdef CONFIG_SMP`

arm64: Tell irq work about self IPI support ARM64 irq work self-IPI support depends on __smp_cross_call to point to some relevant IRQ controller operations. This information should be available after the call to init_IRQ(). Lets implement arch_irq_work_has_interrupt() accordingly. Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> 2014-08-16 16:48:05 +00:00			`#include <asm/smp.h>`

			`static inline bool arch_irq_work_has_interrupt(void)`
			`{`
			`return !!__smp_cross_call;`
			`}`

arm64: Fix compilation error on UP builds In file included from ./arch/arm64/include/asm/irq_work.h:4:0, from include/linux/irq_work.h:46, from include/linux/perf_event.h:49, from include/linux/ftrace_event.h:9, from include/trace/syscall.h:6, from include/linux/syscalls.h:81, from init/main.c:18: ./arch/arm64/include/asm/smp.h:24:3: error: #error "<asm/smp.h> included in non-SMP build" # error "<asm/smp.h> included in non-SMP build" Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Fixes: 3631073659d0 ("arm64: Tell irq work about self IPI support") Reported-by: Guenter Roeck <linux@roeck-us.net> Tested-by: Guenter Roeck <linux@roeck-us.net> 2014-10-21 16:01:07 +00:00			`#else`

			`static inline bool arch_irq_work_has_interrupt(void)`
			`{`
			`return false;`
			`}`

			`#endif`

arm64: Tell irq work about self IPI support ARM64 irq work self-IPI support depends on __smp_cross_call to point to some relevant IRQ controller operations. This information should be available after the call to init_IRQ(). Lets implement arch_irq_work_has_interrupt() accordingly. Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> 2014-08-16 16:48:05 +00:00			`#endif /* __ASM_IRQ_WORK_H */`