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[SPARC64]: Allocate ivector_table dynamically. 

Shrinks kernel by 16K compared to before the IVEC physical
address changes.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2007-10-13 21:43:31 -07:00
parent eb2d8d6032
commit 10397e4069
1 changed files with 11 additions and 11 deletions
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22
arch/sparc64/kernel/irq.c
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@ -64,7 +64,7 @@ struct ino_bucket {
};
#define NUM_IVECS (IMAP_INR + 1)
struct ino_bucket ivector_table[NUM_IVECS] __attribute__ ((aligned (SMP_CACHE_BYTES)));
struct ino_bucket *ivector_table;
unsigned long ivector_table_pa;
#define __irq_ino(irq) \
@ -928,22 +928,22 @@ static struct irqaction timer_irq_action = {
.name = "timer",
};
/* XXX Belongs in a common location. XXX */
static unsigned long kimage_addr_to_ra(void *p)
{
unsigned long val = (unsigned long) p;
return kern_base + (val - KERNBASE);
}
/* Only invoked on boot processor. */
void __init init_IRQ(void)
{
unsigned long size;
map_prom_timers();
kill_prom_timer();
memset(&ivector_table[0], 0, sizeof(ivector_table));
ivector_table_pa = kimage_addr_to_ra(&ivector_table[0]);
size = sizeof(struct ino_bucket) * NUM_IVECS;
ivector_table = alloc_bootmem_low(size);
if (!ivector_table) {
prom_printf("Fatal error, cannot allocate ivector_table\n");
prom_halt();
}
ivector_table_pa = __pa(ivector_table);
if (tlb_type == hypervisor)
sun4v_init_mondo_queues();