Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 36310736 authored by Frederic Weisbecker's avatar Frederic Weisbecker
Browse files

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: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: default avatarCatalin 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: default avatarFrederic Weisbecker <fweisbec@gmail.com>
parent 09f6edd4

arch/arm64/include/asm/Kbuild

+0 −1
Original line number Diff line number Diff line
@@ -19,7 +19,6 @@ generic-y += ioctl.h 
generic-y += ioctls.h

generic-y += ipcbuf.h

generic-y += irq_regs.h

generic-y += irq_work.h

generic-y += kdebug.h

generic-y += kmap_types.h

generic-y += kvm_para.h

arch/arm64/include/asm/irq_work.h

0 → 100644
+11 −0
Original line number Diff line number Diff line 
#ifndef __ASM_IRQ_WORK_H

#define __ASM_IRQ_WORK_H



#include <asm/smp.h>



static inline bool arch_irq_work_has_interrupt(void)

{

	return !!__smp_cross_call;

}



#endif /* __ASM_IRQ_WORK_H */

arch/arm64/include/asm/smp.h

+2 −0
Original line number Diff line number Diff line
@@ -48,6 +48,8 @@ extern void smp_init_cpus(void); 
 */

extern void set_smp_cross_call(void (*)(const struct cpumask *, unsigned int));



extern void (*__smp_cross_call)(const struct cpumask *, unsigned int);



/*

 * Called from the secondary holding pen, this is the secondary CPU entry point.

 */

arch/arm64/kernel/smp.c

+1 −1
Original line number Diff line number Diff line
@@ -470,7 +470,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus) 
	}

}



static void (*__smp_cross_call)(const struct cpumask *, unsigned int);

void (*__smp_cross_call)(const struct cpumask *, unsigned int);



void __init set_smp_cross_call(void (*fn)(const struct cpumask *, unsigned int))

{