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powerpc/xics: Initialization code cleanups 

We only need to check the ibm,interrupt-server#-size property once, not
once per global server and thread.

We can use !CONFIG_SMP cpu masks and hard_smp_processor_id() to avoid an ifdef.
Put the node when breaking out of the loop on lpar systems.

Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Milton Miller 2008-10-10 01:56:33 +00:00 committed by Benjamin Herrenschmidt
parent 188bdddd24
commit a244a957ab
1 changed files with 8 additions and 12 deletions
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20
arch/powerpc/platforms/pseries/xics.c
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@ -606,21 +606,20 @@ static void xics_update_irq_servers(void)
if (ireg[j] == hcpuid) {
default_server = hcpuid;
default_distrib_server = ireg[j+1];
isize = of_get_property(np,
"ibm,interrupt-server#-size", NULL);
if (isize)
interrupt_server_size = *isize;
}
}
/* get the bit size of server numbers */
isize = of_get_property(np, "ibm,interrupt-server#-size", NULL);
if (isize)
interrupt_server_size = *isize;
of_node_put(np);
}
static void __init xics_map_one_cpu(int hw_id, unsigned long addr,
unsigned long size)
{
#ifdef CONFIG_SMP
int i;
/* This may look gross but it's good enough for now, we don't quite
@ -634,11 +633,6 @@ static void __init xics_map_one_cpu(int hw_id, unsigned long addr,
return;
}
}
#else
if (hw_id != 0)
return;
xics_per_cpu[0] = ioremap(addr, size);
#endif /* CONFIG_SMP */
}
static void __init xics_init_one_node(struct device_node *np,
@ -700,8 +694,10 @@ void __init xics_init_IRQ(void)
for_each_node_by_type(np, "PowerPC-External-Interrupt-Presentation") {
found = 1;
if (firmware_has_feature(FW_FEATURE_LPAR))
if (firmware_has_feature(FW_FEATURE_LPAR)) {
of_node_put(np);
break;
}
xics_init_one_node(np, &indx);
}
if (found == 0)