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powerpc: Move smp_mpic_message_pass into mpic.c 

Having it here rather than in arch/ppc64/kernel/smp.c means that
we can use it on 32-bit SMP systems easily with ARCH=powerpc.

Signed-off-by: Paul Mackerras <paulus@samba.org>
hifive-unleashed-5.1
Paul Mackerras 2005-10-20 17:09:51 +10:00
parent d8699e65c6
commit a9c5926469
4 changed files with 24 additions and 23 deletions
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21
arch/powerpc/sysdev/mpic.c
View File

@ -904,4 +904,25 @@ void mpic_request_ipis(void)
printk("IPIs requested... \n");
}
void smp_mpic_message_pass(int target, int msg)
{
/* make sure we're sending something that translates to an IPI */
if ((unsigned int)msg > 3) {
printk("SMP %d: smp_message_pass: unknown msg %d\n",
smp_processor_id(), msg);
return;
}
switch (target) {
case MSG_ALL:
mpic_send_ipi(msg, 0xffffffff);
break;
case MSG_ALL_BUT_SELF:
mpic_send_ipi(msg, 0xffffffff & ~(1 << smp_processor_id()));
break;
default:
mpic_send_ipi(msg, 1 << target);
break;
}
}
#endif /* CONFIG_SMP */

22
arch/ppc64/kernel/smp.c
View File

@ -69,28 +69,6 @@ void smp_call_function_interrupt(void);
int smt_enabled_at_boot = 1;
#ifdef CONFIG_MPIC
void smp_mpic_message_pass(int target, int msg)
{
/* make sure we're sending something that translates to an IPI */
if ( msg > 0x3 ){
printk("SMP %d: smp_message_pass: unknown msg %d\n",
smp_processor_id(), msg);
return;
}
switch ( target )
{
case MSG_ALL:
mpic_send_ipi(msg, 0xffffffff);
break;
case MSG_ALL_BUT_SELF:
mpic_send_ipi(msg, 0xffffffff & ~(1 << smp_processor_id()));
break;
default:
mpic_send_ipi(msg, 1 << target);
break;
}
}
int __init smp_mpic_probe(void)
{
int nr_cpus;

3
include/asm-powerpc/mpic.h
View File

@ -273,6 +273,9 @@ extern void mpic_request_ipis(void);
/* Send an IPI (non offseted number 0..3) */
extern void mpic_send_ipi(unsigned int ipi_no, unsigned int cpu_mask);
/* Send a message (IPI) to a given target (cpu number or MSG_*) */
void smp_mpic_message_pass(int target, int msg);
/* Fetch interrupt from a given mpic */
extern int mpic_get_one_irq(struct mpic *mpic, struct pt_regs *regs);
/* This one gets to the primary mpic */

1
include/asm-ppc64/smp.h
View File

@ -77,7 +77,6 @@ extern int smt_enabled_at_boot;
extern int smp_mpic_probe(void);
extern void smp_mpic_setup_cpu(int cpu);
extern void smp_mpic_message_pass(int target, int msg);
extern void smp_generic_kick_cpu(int nr);
extern void smp_generic_give_timebase(void);