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Commit ccdaa6e0 authored by Vineet Gupta's avatar Vineet Gupta
Browse files

ARC: [SMP] IPI ACK interface doesn't need "self" cpu-id 



The interface is confusing, it feels like we are getting "sender" info,
whereas it is the "receiver", which can very well be retrived by
smp_processor_id(), if need be.

Signed-off-by: default avatarVineet Gupta <vgupta@synopsys.com>
parent ddf84433

arch/arc/include/asm/smp.h

+2 −2
Original line number Diff line number Diff line
@@ -47,13 +47,13 @@ extern int smp_ipi_irq_setup(int cpu, int irq); 
 * @info:		SoC SMP specific info for /proc/cpuinfo etc

 * @cpu_kick:		For Master to kickstart a cpu (optionally at a PC)

 * @ipi_send:		To send IPI to a @cpu

 * @ips_clear:		To clear IPI received by @cpu at @irq

 * @ips_clear:		To clear IPI received at @irq

 */

struct plat_smp_ops {

	const char 	*info;

	void		(*cpu_kick)(int cpu, unsigned long pc);

	void		(*ipi_send)(int cpu);

	void		(*ipi_clear)(int cpu, int irq);

	void		(*ipi_clear)(int irq);

};



/* TBD: stop exporting it for direct population by platform */

arch/arc/kernel/smp.c

+1 −1
Original line number Diff line number Diff line
@@ -310,7 +310,7 @@ irqreturn_t do_IPI(int irq, void *dev_id) 
	unsigned long ops;



	if (plat_smp_ops.ipi_clear)

		plat_smp_ops.ipi_clear(cpu, irq);

		plat_smp_ops.ipi_clear(irq);



	/*

	 * XXX: is this loop really needed

arch/arc/plat-arcfpga/smp.c

+2 −2
Original line number Diff line number Diff line
@@ -93,9 +93,9 @@ static void iss_model_ipi_send(int cpu) 
	idu_irq_assert(cpu);

}



static void iss_model_ipi_clear(int cpu, int irq)

static void iss_model_ipi_clear(int irq)

{

	idu_irq_clear(IDU_INTERRUPT_0 + cpu);

	idu_irq_clear(IDU_INTERRUPT_0 + smp_processor_id());

}



void iss_model_init_early_smp(void)