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Commit 173a44dd authored by Paul Mundt's avatar Paul Mundt
Browse files

sh: smp: Provide a generic IPI handler. 



This provides a generic smp_message_recv() routine (based on the PPC
one), that IPI IRQs can wrap in to.

Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent 04ec080d

arch/sh/include/asm/smp.h

+1 −0
Original line number Diff line number Diff line
@@ -26,6 +26,7 @@ extern int __cpu_logical_map[NR_CPUS]; 
#define SMP_MSG_FUNCTION_SINGLE	2

#define SMP_MSG_NR		3



void smp_message_recv(unsigned int msg);

void plat_smp_setup(void);

void plat_prepare_cpus(unsigned int max_cpus);

int plat_smp_processor_id(void);

arch/sh/kernel/smp.c

+19 −1
Original line number Diff line number Diff line
@@ -3,7 +3,7 @@ 
 *

 * SMP support for the SuperH processors.

 *

 * Copyright (C) 2002 - 2007 Paul Mundt

 * Copyright (C) 2002 - 2008 Paul Mundt

 * Copyright (C) 2006 - 2007 Akio Idehara

 *

 * This file is subject to the terms and conditions of the GNU General Public
@@ -184,6 +184,24 @@ void arch_send_call_function_single_ipi(int cpu) 
	plat_send_ipi(cpu, SMP_MSG_FUNCTION_SINGLE);

}



void smp_message_recv(unsigned int msg)

{

	switch (msg) {

	case SMP_MSG_FUNCTION:

		generic_smp_call_function_interrupt();

		break;

	case SMP_MSG_RESCHEDULE:

		break;

	case SMP_MSG_FUNCTION_SINGLE:

		generic_smp_call_function_single_interrupt();

		break;

	default:

		printk(KERN_WARNING "SMP %d: %s(): unknown IPI %d\n",

		       smp_processor_id(), __func__, msg);

		break;

	}

}



/* Not really SMP stuff ... */

int setup_profiling_timer(unsigned int multiplier)

{