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OpenCloudOS-Kernel/arch/arm64/include/asm/irq_work.h

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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>
2014-08-17 00:48:05 +08:00
#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>
2014-10-22 00:01:07 +08:00
#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>
2014-08-17 00:48:05 +08:00
#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>
2014-10-22 00:01:07 +08:00
#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>
2014-08-17 00:48:05 +08:00
#endif /* __ASM_IRQ_WORK_H */